ctl.c revision 272616
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 272616 2014-10-06 12:35:41Z 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*/0, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 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 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 326 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 327 */ 328#define SCSI_EVPD_NUM_SUPPORTED_PAGES 8 329 330static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 331 int param); 332static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 333static int ctl_init(void); 334void ctl_shutdown(void); 335static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 336static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 337static void ctl_ioctl_online(void *arg); 338static void ctl_ioctl_offline(void *arg); 339static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 340static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 342static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 343static int ctl_ioctl_submit_wait(union ctl_io *io); 344static void ctl_ioctl_datamove(union ctl_io *io); 345static void ctl_ioctl_done(union ctl_io *io); 346static void ctl_ioctl_hard_startstop_callback(void *arg, 347 struct cfi_metatask *metatask); 348static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 349static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 350 struct ctl_ooa *ooa_hdr, 351 struct ctl_ooa_entry *kern_entries); 352static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 353 struct thread *td); 354static uint32_t ctl_map_lun(int port_num, uint32_t lun); 355static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 356#ifdef unused 357static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 358 uint32_t targ_target, uint32_t targ_lun, 359 int can_wait); 360static void ctl_kfree_io(union ctl_io *io); 361#endif /* unused */ 362static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 363 struct ctl_be_lun *be_lun, struct ctl_id target_id); 364static int ctl_free_lun(struct ctl_lun *lun); 365static void ctl_create_lun(struct ctl_be_lun *be_lun); 366/** 367static void ctl_failover_change_pages(struct ctl_softc *softc, 368 struct ctl_scsiio *ctsio, int master); 369**/ 370 371static int ctl_do_mode_select(union ctl_io *io); 372static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 373 uint64_t res_key, uint64_t sa_res_key, 374 uint8_t type, uint32_t residx, 375 struct ctl_scsiio *ctsio, 376 struct scsi_per_res_out *cdb, 377 struct scsi_per_res_out_parms* param); 378static void ctl_pro_preempt_other(struct ctl_lun *lun, 379 union ctl_ha_msg *msg); 380static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 381static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 385 int alloc_len); 386static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 387 int alloc_len); 388static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 389static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 390static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 391static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 392static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 393static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 394static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 395 union ctl_io *ooa_io); 396static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 397 union ctl_io *starting_io); 398static int ctl_check_blocked(struct ctl_lun *lun); 399static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 400 struct ctl_lun *lun, 401 const struct ctl_cmd_entry *entry, 402 struct ctl_scsiio *ctsio); 403//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 404static void ctl_failover(void); 405static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 406 struct ctl_scsiio *ctsio); 407static int ctl_scsiio(struct ctl_scsiio *ctsio); 408 409static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 410static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 411 ctl_ua_type ua_type); 412static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 413 ctl_ua_type ua_type); 414static int ctl_abort_task(union ctl_io *io); 415static int ctl_abort_task_set(union ctl_io *io); 416static int ctl_i_t_nexus_reset(union ctl_io *io); 417static void ctl_run_task(union ctl_io *io); 418#ifdef CTL_IO_DELAY 419static void ctl_datamove_timer_wakeup(void *arg); 420static void ctl_done_timer_wakeup(void *arg); 421#endif /* CTL_IO_DELAY */ 422 423static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 424static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 425static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 426static void ctl_datamove_remote_write(union ctl_io *io); 427static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 428static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 429static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 430static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 431 ctl_ha_dt_cb callback); 432static void ctl_datamove_remote_read(union ctl_io *io); 433static void ctl_datamove_remote(union ctl_io *io); 434static int ctl_process_done(union ctl_io *io); 435static void ctl_lun_thread(void *arg); 436static void ctl_work_thread(void *arg); 437static void ctl_enqueue_incoming(union ctl_io *io); 438static void ctl_enqueue_rtr(union ctl_io *io); 439static void ctl_enqueue_done(union ctl_io *io); 440static void ctl_enqueue_isc(union ctl_io *io); 441static const struct ctl_cmd_entry * 442 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 443static const struct ctl_cmd_entry * 444 ctl_validate_command(struct ctl_scsiio *ctsio); 445static int ctl_cmd_applicable(uint8_t lun_type, 446 const struct ctl_cmd_entry *entry); 447 448/* 449 * Load the serialization table. This isn't very pretty, but is probably 450 * the easiest way to do it. 451 */ 452#include "ctl_ser_table.c" 453 454/* 455 * We only need to define open, close and ioctl routines for this driver. 456 */ 457static struct cdevsw ctl_cdevsw = { 458 .d_version = D_VERSION, 459 .d_flags = 0, 460 .d_open = ctl_open, 461 .d_close = ctl_close, 462 .d_ioctl = ctl_ioctl, 463 .d_name = "ctl", 464}; 465 466 467MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 468MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 469 470static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 471 472static moduledata_t ctl_moduledata = { 473 "ctl", 474 ctl_module_event_handler, 475 NULL 476}; 477 478DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 479MODULE_VERSION(ctl, 1); 480 481static struct ctl_frontend ioctl_frontend = 482{ 483 .name = "ioctl", 484}; 485 486static void 487ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 488 union ctl_ha_msg *msg_info) 489{ 490 struct ctl_scsiio *ctsio; 491 492 if (msg_info->hdr.original_sc == NULL) { 493 printf("%s: original_sc == NULL!\n", __func__); 494 /* XXX KDM now what? */ 495 return; 496 } 497 498 ctsio = &msg_info->hdr.original_sc->scsiio; 499 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 500 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 501 ctsio->io_hdr.status = msg_info->hdr.status; 502 ctsio->scsi_status = msg_info->scsi.scsi_status; 503 ctsio->sense_len = msg_info->scsi.sense_len; 504 ctsio->sense_residual = msg_info->scsi.sense_residual; 505 ctsio->residual = msg_info->scsi.residual; 506 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 507 sizeof(ctsio->sense_data)); 508 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 509 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 510 ctl_enqueue_isc((union ctl_io *)ctsio); 511} 512 513static void 514ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 515 union ctl_ha_msg *msg_info) 516{ 517 struct ctl_scsiio *ctsio; 518 519 if (msg_info->hdr.serializing_sc == NULL) { 520 printf("%s: serializing_sc == NULL!\n", __func__); 521 /* XXX KDM now what? */ 522 return; 523 } 524 525 ctsio = &msg_info->hdr.serializing_sc->scsiio; 526#if 0 527 /* 528 * Attempt to catch the situation where an I/O has 529 * been freed, and we're using it again. 530 */ 531 if (ctsio->io_hdr.io_type == 0xff) { 532 union ctl_io *tmp_io; 533 tmp_io = (union ctl_io *)ctsio; 534 printf("%s: %p use after free!\n", __func__, 535 ctsio); 536 printf("%s: type %d msg %d cdb %x iptl: " 537 "%d:%d:%d:%d tag 0x%04x " 538 "flag %#x status %x\n", 539 __func__, 540 tmp_io->io_hdr.io_type, 541 tmp_io->io_hdr.msg_type, 542 tmp_io->scsiio.cdb[0], 543 tmp_io->io_hdr.nexus.initid.id, 544 tmp_io->io_hdr.nexus.targ_port, 545 tmp_io->io_hdr.nexus.targ_target.id, 546 tmp_io->io_hdr.nexus.targ_lun, 547 (tmp_io->io_hdr.io_type == 548 CTL_IO_TASK) ? 549 tmp_io->taskio.tag_num : 550 tmp_io->scsiio.tag_num, 551 tmp_io->io_hdr.flags, 552 tmp_io->io_hdr.status); 553 } 554#endif 555 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557} 558 559/* 560 * ISC (Inter Shelf Communication) event handler. Events from the HA 561 * subsystem come in here. 562 */ 563static void 564ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 565{ 566 struct ctl_softc *ctl_softc; 567 union ctl_io *io; 568 struct ctl_prio *presio; 569 ctl_ha_status isc_status; 570 571 ctl_softc = control_softc; 572 io = NULL; 573 574 575#if 0 576 printf("CTL: Isc Msg event %d\n", event); 577#endif 578 if (event == CTL_HA_EVT_MSG_RECV) { 579 union ctl_ha_msg msg_info; 580 581 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 582 sizeof(msg_info), /*wait*/ 0); 583#if 0 584 printf("CTL: msg_type %d\n", msg_info.msg_type); 585#endif 586 if (isc_status != 0) { 587 printf("Error receiving message, status = %d\n", 588 isc_status); 589 return; 590 } 591 592 switch (msg_info.hdr.msg_type) { 593 case CTL_MSG_SERIALIZE: 594#if 0 595 printf("Serialize\n"); 596#endif 597 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 598 if (io == NULL) { 599 printf("ctl_isc_event_handler: can't allocate " 600 "ctl_io!\n"); 601 /* Bad Juju */ 602 /* Need to set busy and send msg back */ 603 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 604 msg_info.hdr.status = CTL_SCSI_ERROR; 605 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 606 msg_info.scsi.sense_len = 0; 607 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 608 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 609 } 610 goto bailout; 611 } 612 ctl_zero_io(io); 613 // populate ctsio from msg_info 614 io->io_hdr.io_type = CTL_IO_SCSI; 615 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 616 io->io_hdr.original_sc = msg_info.hdr.original_sc; 617#if 0 618 printf("pOrig %x\n", (int)msg_info.original_sc); 619#endif 620 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 621 CTL_FLAG_IO_ACTIVE; 622 /* 623 * If we're in serialization-only mode, we don't 624 * want to go through full done processing. Thus 625 * the COPY flag. 626 * 627 * XXX KDM add another flag that is more specific. 628 */ 629 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 630 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 631 io->io_hdr.nexus = msg_info.hdr.nexus; 632#if 0 633 printf("targ %d, port %d, iid %d, lun %d\n", 634 io->io_hdr.nexus.targ_target.id, 635 io->io_hdr.nexus.targ_port, 636 io->io_hdr.nexus.initid.id, 637 io->io_hdr.nexus.targ_lun); 638#endif 639 io->scsiio.tag_num = msg_info.scsi.tag_num; 640 io->scsiio.tag_type = msg_info.scsi.tag_type; 641 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 642 CTL_MAX_CDBLEN); 643 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 644 const struct ctl_cmd_entry *entry; 645 646 entry = ctl_get_cmd_entry(&io->scsiio); 647 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 648 io->io_hdr.flags |= 649 entry->flags & CTL_FLAG_DATA_MASK; 650 } 651 ctl_enqueue_isc(io); 652 break; 653 654 /* Performed on the Originating SC, XFER mode only */ 655 case CTL_MSG_DATAMOVE: { 656 struct ctl_sg_entry *sgl; 657 int i, j; 658 659 io = msg_info.hdr.original_sc; 660 if (io == NULL) { 661 printf("%s: original_sc == NULL!\n", __func__); 662 /* XXX KDM do something here */ 663 break; 664 } 665 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 666 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 667 /* 668 * Keep track of this, we need to send it back over 669 * when the datamove is complete. 670 */ 671 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 672 673 if (msg_info.dt.sg_sequence == 0) { 674 /* 675 * XXX KDM we use the preallocated S/G list 676 * here, but we'll need to change this to 677 * dynamic allocation if we need larger S/G 678 * lists. 679 */ 680 if (msg_info.dt.kern_sg_entries > 681 sizeof(io->io_hdr.remote_sglist) / 682 sizeof(io->io_hdr.remote_sglist[0])) { 683 printf("%s: number of S/G entries " 684 "needed %u > allocated num %zd\n", 685 __func__, 686 msg_info.dt.kern_sg_entries, 687 sizeof(io->io_hdr.remote_sglist)/ 688 sizeof(io->io_hdr.remote_sglist[0])); 689 690 /* 691 * XXX KDM send a message back to 692 * the other side to shut down the 693 * DMA. The error will come back 694 * through via the normal channel. 695 */ 696 break; 697 } 698 sgl = io->io_hdr.remote_sglist; 699 memset(sgl, 0, 700 sizeof(io->io_hdr.remote_sglist)); 701 702 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 703 704 io->scsiio.kern_sg_entries = 705 msg_info.dt.kern_sg_entries; 706 io->scsiio.rem_sg_entries = 707 msg_info.dt.kern_sg_entries; 708 io->scsiio.kern_data_len = 709 msg_info.dt.kern_data_len; 710 io->scsiio.kern_total_len = 711 msg_info.dt.kern_total_len; 712 io->scsiio.kern_data_resid = 713 msg_info.dt.kern_data_resid; 714 io->scsiio.kern_rel_offset = 715 msg_info.dt.kern_rel_offset; 716 /* 717 * Clear out per-DMA flags. 718 */ 719 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 720 /* 721 * Add per-DMA flags that are set for this 722 * particular DMA request. 723 */ 724 io->io_hdr.flags |= msg_info.dt.flags & 725 CTL_FLAG_RDMA_MASK; 726 } else 727 sgl = (struct ctl_sg_entry *) 728 io->scsiio.kern_data_ptr; 729 730 for (i = msg_info.dt.sent_sg_entries, j = 0; 731 i < (msg_info.dt.sent_sg_entries + 732 msg_info.dt.cur_sg_entries); i++, j++) { 733 sgl[i].addr = msg_info.dt.sg_list[j].addr; 734 sgl[i].len = msg_info.dt.sg_list[j].len; 735 736#if 0 737 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 738 __func__, 739 msg_info.dt.sg_list[j].addr, 740 msg_info.dt.sg_list[j].len, 741 sgl[i].addr, sgl[i].len, j, i); 742#endif 743 } 744#if 0 745 memcpy(&sgl[msg_info.dt.sent_sg_entries], 746 msg_info.dt.sg_list, 747 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 748#endif 749 750 /* 751 * If this is the last piece of the I/O, we've got 752 * the full S/G list. Queue processing in the thread. 753 * Otherwise wait for the next piece. 754 */ 755 if (msg_info.dt.sg_last != 0) 756 ctl_enqueue_isc(io); 757 break; 758 } 759 /* Performed on the Serializing (primary) SC, XFER mode only */ 760 case CTL_MSG_DATAMOVE_DONE: { 761 if (msg_info.hdr.serializing_sc == NULL) { 762 printf("%s: serializing_sc == NULL!\n", 763 __func__); 764 /* XXX KDM now what? */ 765 break; 766 } 767 /* 768 * We grab the sense information here in case 769 * there was a failure, so we can return status 770 * back to the initiator. 771 */ 772 io = msg_info.hdr.serializing_sc; 773 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 774 io->io_hdr.status = msg_info.hdr.status; 775 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 776 io->scsiio.sense_len = msg_info.scsi.sense_len; 777 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 778 io->io_hdr.port_status = msg_info.scsi.fetd_status; 779 io->scsiio.residual = msg_info.scsi.residual; 780 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 781 sizeof(io->scsiio.sense_data)); 782 ctl_enqueue_isc(io); 783 break; 784 } 785 786 /* Preformed on Originating SC, SER_ONLY mode */ 787 case CTL_MSG_R2R: 788 io = msg_info.hdr.original_sc; 789 if (io == NULL) { 790 printf("%s: Major Bummer\n", __func__); 791 return; 792 } else { 793#if 0 794 printf("pOrig %x\n",(int) ctsio); 795#endif 796 } 797 io->io_hdr.msg_type = CTL_MSG_R2R; 798 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 799 ctl_enqueue_isc(io); 800 break; 801 802 /* 803 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 804 * mode. 805 * Performed on the Originating (i.e. secondary) SC in XFER 806 * mode 807 */ 808 case CTL_MSG_FINISH_IO: 809 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 810 ctl_isc_handler_finish_xfer(ctl_softc, 811 &msg_info); 812 else 813 ctl_isc_handler_finish_ser_only(ctl_softc, 814 &msg_info); 815 break; 816 817 /* Preformed on Originating SC */ 818 case CTL_MSG_BAD_JUJU: 819 io = msg_info.hdr.original_sc; 820 if (io == NULL) { 821 printf("%s: Bad JUJU!, original_sc is NULL!\n", 822 __func__); 823 break; 824 } 825 ctl_copy_sense_data(&msg_info, io); 826 /* 827 * IO should have already been cleaned up on other 828 * SC so clear this flag so we won't send a message 829 * back to finish the IO there. 830 */ 831 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 832 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 833 834 /* io = msg_info.hdr.serializing_sc; */ 835 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 836 ctl_enqueue_isc(io); 837 break; 838 839 /* Handle resets sent from the other side */ 840 case CTL_MSG_MANAGE_TASKS: { 841 struct ctl_taskio *taskio; 842 taskio = (struct ctl_taskio *)ctl_alloc_io( 843 (void *)ctl_softc->othersc_pool); 844 if (taskio == NULL) { 845 printf("ctl_isc_event_handler: can't allocate " 846 "ctl_io!\n"); 847 /* Bad Juju */ 848 /* should I just call the proper reset func 849 here??? */ 850 goto bailout; 851 } 852 ctl_zero_io((union ctl_io *)taskio); 853 taskio->io_hdr.io_type = CTL_IO_TASK; 854 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 855 taskio->io_hdr.nexus = msg_info.hdr.nexus; 856 taskio->task_action = msg_info.task.task_action; 857 taskio->tag_num = msg_info.task.tag_num; 858 taskio->tag_type = msg_info.task.tag_type; 859#ifdef CTL_TIME_IO 860 taskio->io_hdr.start_time = time_uptime; 861 getbintime(&taskio->io_hdr.start_bt); 862#if 0 863 cs_prof_gettime(&taskio->io_hdr.start_ticks); 864#endif 865#endif /* CTL_TIME_IO */ 866 ctl_run_task((union ctl_io *)taskio); 867 break; 868 } 869 /* Persistent Reserve action which needs attention */ 870 case CTL_MSG_PERS_ACTION: 871 presio = (struct ctl_prio *)ctl_alloc_io( 872 (void *)ctl_softc->othersc_pool); 873 if (presio == NULL) { 874 printf("ctl_isc_event_handler: can't allocate " 875 "ctl_io!\n"); 876 /* Bad Juju */ 877 /* Need to set busy and send msg back */ 878 goto bailout; 879 } 880 ctl_zero_io((union ctl_io *)presio); 881 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 882 presio->pr_msg = msg_info.pr; 883 ctl_enqueue_isc((union ctl_io *)presio); 884 break; 885 case CTL_MSG_SYNC_FE: 886 rcv_sync_msg = 1; 887 break; 888 case CTL_MSG_APS_LOCK: { 889 // It's quicker to execute this then to 890 // queue it. 891 struct ctl_lun *lun; 892 struct ctl_page_index *page_index; 893 struct copan_aps_subpage *current_sp; 894 uint32_t targ_lun; 895 896 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 897 lun = ctl_softc->ctl_luns[targ_lun]; 898 mtx_lock(&lun->lun_lock); 899 page_index = &lun->mode_pages.index[index_to_aps_page]; 900 current_sp = (struct copan_aps_subpage *) 901 (page_index->page_data + 902 (page_index->page_len * CTL_PAGE_CURRENT)); 903 904 current_sp->lock_active = msg_info.aps.lock_flag; 905 mtx_unlock(&lun->lun_lock); 906 break; 907 } 908 default: 909 printf("How did I get here?\n"); 910 } 911 } else if (event == CTL_HA_EVT_MSG_SENT) { 912 if (param != CTL_HA_STATUS_SUCCESS) { 913 printf("Bad status from ctl_ha_msg_send status %d\n", 914 param); 915 } 916 return; 917 } else if (event == CTL_HA_EVT_DISCONNECT) { 918 printf("CTL: Got a disconnect from Isc\n"); 919 return; 920 } else { 921 printf("ctl_isc_event_handler: Unknown event %d\n", event); 922 return; 923 } 924 925bailout: 926 return; 927} 928 929static void 930ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 931{ 932 struct scsi_sense_data *sense; 933 934 sense = &dest->scsiio.sense_data; 935 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 936 dest->scsiio.scsi_status = src->scsi.scsi_status; 937 dest->scsiio.sense_len = src->scsi.sense_len; 938 dest->io_hdr.status = src->hdr.status; 939} 940 941static int 942ctl_init(void) 943{ 944 struct ctl_softc *softc; 945 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 946 struct ctl_port *port; 947 uint8_t sc_id =0; 948 int i, error, retval; 949 //int isc_retval; 950 951 retval = 0; 952 ctl_pause_rtr = 0; 953 rcv_sync_msg = 0; 954 955 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 956 M_WAITOK | M_ZERO); 957 softc = control_softc; 958 959 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 960 "cam/ctl"); 961 962 softc->dev->si_drv1 = softc; 963 964 /* 965 * By default, return a "bad LUN" peripheral qualifier for unknown 966 * LUNs. The user can override this default using the tunable or 967 * sysctl. See the comment in ctl_inquiry_std() for more details. 968 */ 969 softc->inquiry_pq_no_lun = 1; 970 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 971 &softc->inquiry_pq_no_lun); 972 sysctl_ctx_init(&softc->sysctl_ctx); 973 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 974 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 975 CTLFLAG_RD, 0, "CAM Target Layer"); 976 977 if (softc->sysctl_tree == NULL) { 978 printf("%s: unable to allocate sysctl tree\n", __func__); 979 destroy_dev(softc->dev); 980 free(control_softc, M_DEVBUF); 981 control_softc = NULL; 982 return (ENOMEM); 983 } 984 985 SYSCTL_ADD_INT(&softc->sysctl_ctx, 986 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 987 "inquiry_pq_no_lun", CTLFLAG_RW, 988 &softc->inquiry_pq_no_lun, 0, 989 "Report no lun possible for invalid LUNs"); 990 991 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 992 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 993 softc->open_count = 0; 994 995 /* 996 * Default to actually sending a SYNCHRONIZE CACHE command down to 997 * the drive. 998 */ 999 softc->flags = CTL_FLAG_REAL_SYNC; 1000 1001 /* 1002 * In Copan's HA scheme, the "master" and "slave" roles are 1003 * figured out through the slot the controller is in. Although it 1004 * is an active/active system, someone has to be in charge. 1005 */ 1006#ifdef NEEDTOPORT 1007 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1008#endif 1009 1010 if (sc_id == 0) { 1011 softc->flags |= CTL_FLAG_MASTER_SHELF; 1012 persis_offset = 0; 1013 } else 1014 persis_offset = CTL_MAX_INITIATORS; 1015 1016 /* 1017 * XXX KDM need to figure out where we want to get our target ID 1018 * and WWID. Is it different on each port? 1019 */ 1020 softc->target.id = 0; 1021 softc->target.wwid[0] = 0x12345678; 1022 softc->target.wwid[1] = 0x87654321; 1023 STAILQ_INIT(&softc->lun_list); 1024 STAILQ_INIT(&softc->pending_lun_queue); 1025 STAILQ_INIT(&softc->fe_list); 1026 STAILQ_INIT(&softc->port_list); 1027 STAILQ_INIT(&softc->be_list); 1028 STAILQ_INIT(&softc->io_pools); 1029 ctl_tpc_init(softc); 1030 1031 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1032 &internal_pool)!= 0){ 1033 printf("ctl: can't allocate %d entry internal pool, " 1034 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1035 return (ENOMEM); 1036 } 1037 1038 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1039 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1040 printf("ctl: can't allocate %d entry emergency pool, " 1041 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1042 ctl_pool_free(internal_pool); 1043 return (ENOMEM); 1044 } 1045 1046 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1047 &other_pool) != 0) 1048 { 1049 printf("ctl: can't allocate %d entry other SC pool, " 1050 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1051 ctl_pool_free(internal_pool); 1052 ctl_pool_free(emergency_pool); 1053 return (ENOMEM); 1054 } 1055 1056 softc->internal_pool = internal_pool; 1057 softc->emergency_pool = emergency_pool; 1058 softc->othersc_pool = other_pool; 1059 1060 if (worker_threads <= 0) 1061 worker_threads = max(1, mp_ncpus / 4); 1062 if (worker_threads > CTL_MAX_THREADS) 1063 worker_threads = CTL_MAX_THREADS; 1064 1065 for (i = 0; i < worker_threads; i++) { 1066 struct ctl_thread *thr = &softc->threads[i]; 1067 1068 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1069 thr->ctl_softc = softc; 1070 STAILQ_INIT(&thr->incoming_queue); 1071 STAILQ_INIT(&thr->rtr_queue); 1072 STAILQ_INIT(&thr->done_queue); 1073 STAILQ_INIT(&thr->isc_queue); 1074 1075 error = kproc_kthread_add(ctl_work_thread, thr, 1076 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1077 if (error != 0) { 1078 printf("error creating CTL work thread!\n"); 1079 ctl_pool_free(internal_pool); 1080 ctl_pool_free(emergency_pool); 1081 ctl_pool_free(other_pool); 1082 return (error); 1083 } 1084 } 1085 error = kproc_kthread_add(ctl_lun_thread, softc, 1086 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1087 if (error != 0) { 1088 printf("error creating CTL lun thread!\n"); 1089 ctl_pool_free(internal_pool); 1090 ctl_pool_free(emergency_pool); 1091 ctl_pool_free(other_pool); 1092 return (error); 1093 } 1094 if (bootverbose) 1095 printf("ctl: CAM Target Layer loaded\n"); 1096 1097 /* 1098 * Initialize the ioctl front end. 1099 */ 1100 ctl_frontend_register(&ioctl_frontend); 1101 port = &softc->ioctl_info.port; 1102 port->frontend = &ioctl_frontend; 1103 sprintf(softc->ioctl_info.port_name, "ioctl"); 1104 port->port_type = CTL_PORT_IOCTL; 1105 port->num_requested_ctl_io = 100; 1106 port->port_name = softc->ioctl_info.port_name; 1107 port->port_online = ctl_ioctl_online; 1108 port->port_offline = ctl_ioctl_offline; 1109 port->onoff_arg = &softc->ioctl_info; 1110 port->lun_enable = ctl_ioctl_lun_enable; 1111 port->lun_disable = ctl_ioctl_lun_disable; 1112 port->targ_lun_arg = &softc->ioctl_info; 1113 port->fe_datamove = ctl_ioctl_datamove; 1114 port->fe_done = ctl_ioctl_done; 1115 port->max_targets = 15; 1116 port->max_target_id = 15; 1117 1118 if (ctl_port_register(&softc->ioctl_info.port, 1119 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1120 printf("ctl: ioctl front end registration failed, will " 1121 "continue anyway\n"); 1122 } 1123 1124#ifdef CTL_IO_DELAY 1125 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1126 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1127 sizeof(struct callout), CTL_TIMER_BYTES); 1128 return (EINVAL); 1129 } 1130#endif /* CTL_IO_DELAY */ 1131 1132 return (0); 1133} 1134 1135void 1136ctl_shutdown(void) 1137{ 1138 struct ctl_softc *softc; 1139 struct ctl_lun *lun, *next_lun; 1140 struct ctl_io_pool *pool; 1141 1142 softc = (struct ctl_softc *)control_softc; 1143 1144 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1145 printf("ctl: ioctl front end deregistration failed\n"); 1146 1147 mtx_lock(&softc->ctl_lock); 1148 1149 /* 1150 * Free up each LUN. 1151 */ 1152 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1153 next_lun = STAILQ_NEXT(lun, links); 1154 ctl_free_lun(lun); 1155 } 1156 1157 mtx_unlock(&softc->ctl_lock); 1158 1159 ctl_frontend_deregister(&ioctl_frontend); 1160 1161 /* 1162 * This will rip the rug out from under any FETDs or anyone else 1163 * that has a pool allocated. Since we increment our module 1164 * refcount any time someone outside the main CTL module allocates 1165 * a pool, we shouldn't have any problems here. The user won't be 1166 * able to unload the CTL module until client modules have 1167 * successfully unloaded. 1168 */ 1169 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1170 ctl_pool_free(pool); 1171 1172#if 0 1173 ctl_shutdown_thread(softc->work_thread); 1174 mtx_destroy(&softc->queue_lock); 1175#endif 1176 1177 ctl_tpc_shutdown(softc); 1178 mtx_destroy(&softc->pool_lock); 1179 mtx_destroy(&softc->ctl_lock); 1180 1181 destroy_dev(softc->dev); 1182 1183 sysctl_ctx_free(&softc->sysctl_ctx); 1184 1185 free(control_softc, M_DEVBUF); 1186 control_softc = NULL; 1187 1188 if (bootverbose) 1189 printf("ctl: CAM Target Layer unloaded\n"); 1190} 1191 1192static int 1193ctl_module_event_handler(module_t mod, int what, void *arg) 1194{ 1195 1196 switch (what) { 1197 case MOD_LOAD: 1198 return (ctl_init()); 1199 case MOD_UNLOAD: 1200 return (EBUSY); 1201 default: 1202 return (EOPNOTSUPP); 1203 } 1204} 1205 1206/* 1207 * XXX KDM should we do some access checks here? Bump a reference count to 1208 * prevent a CTL module from being unloaded while someone has it open? 1209 */ 1210static int 1211ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1212{ 1213 return (0); 1214} 1215 1216static int 1217ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1218{ 1219 return (0); 1220} 1221 1222int 1223ctl_port_enable(ctl_port_type port_type) 1224{ 1225 struct ctl_softc *softc; 1226 struct ctl_port *port; 1227 1228 if (ctl_is_single == 0) { 1229 union ctl_ha_msg msg_info; 1230 int isc_retval; 1231 1232#if 0 1233 printf("%s: HA mode, synchronizing frontend enable\n", 1234 __func__); 1235#endif 1236 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1237 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1238 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1239 printf("Sync msg send error retval %d\n", isc_retval); 1240 } 1241 if (!rcv_sync_msg) { 1242 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1243 sizeof(msg_info), 1); 1244 } 1245#if 0 1246 printf("CTL:Frontend Enable\n"); 1247 } else { 1248 printf("%s: single mode, skipping frontend synchronization\n", 1249 __func__); 1250#endif 1251 } 1252 1253 softc = control_softc; 1254 1255 STAILQ_FOREACH(port, &softc->port_list, links) { 1256 if (port_type & port->port_type) 1257 { 1258#if 0 1259 printf("port %d\n", port->targ_port); 1260#endif 1261 ctl_port_online(port); 1262 } 1263 } 1264 1265 return (0); 1266} 1267 1268int 1269ctl_port_disable(ctl_port_type port_type) 1270{ 1271 struct ctl_softc *softc; 1272 struct ctl_port *port; 1273 1274 softc = control_softc; 1275 1276 STAILQ_FOREACH(port, &softc->port_list, links) { 1277 if (port_type & port->port_type) 1278 ctl_port_offline(port); 1279 } 1280 1281 return (0); 1282} 1283 1284/* 1285 * Returns 0 for success, 1 for failure. 1286 * Currently the only failure mode is if there aren't enough entries 1287 * allocated. So, in case of a failure, look at num_entries_dropped, 1288 * reallocate and try again. 1289 */ 1290int 1291ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1292 int *num_entries_filled, int *num_entries_dropped, 1293 ctl_port_type port_type, int no_virtual) 1294{ 1295 struct ctl_softc *softc; 1296 struct ctl_port *port; 1297 int entries_dropped, entries_filled; 1298 int retval; 1299 int i; 1300 1301 softc = control_softc; 1302 1303 retval = 0; 1304 entries_filled = 0; 1305 entries_dropped = 0; 1306 1307 i = 0; 1308 mtx_lock(&softc->ctl_lock); 1309 STAILQ_FOREACH(port, &softc->port_list, links) { 1310 struct ctl_port_entry *entry; 1311 1312 if ((port->port_type & port_type) == 0) 1313 continue; 1314 1315 if ((no_virtual != 0) 1316 && (port->virtual_port != 0)) 1317 continue; 1318 1319 if (entries_filled >= num_entries_alloced) { 1320 entries_dropped++; 1321 continue; 1322 } 1323 entry = &entries[i]; 1324 1325 entry->port_type = port->port_type; 1326 strlcpy(entry->port_name, port->port_name, 1327 sizeof(entry->port_name)); 1328 entry->physical_port = port->physical_port; 1329 entry->virtual_port = port->virtual_port; 1330 entry->wwnn = port->wwnn; 1331 entry->wwpn = port->wwpn; 1332 1333 i++; 1334 entries_filled++; 1335 } 1336 1337 mtx_unlock(&softc->ctl_lock); 1338 1339 if (entries_dropped > 0) 1340 retval = 1; 1341 1342 *num_entries_dropped = entries_dropped; 1343 *num_entries_filled = entries_filled; 1344 1345 return (retval); 1346} 1347 1348static void 1349ctl_ioctl_online(void *arg) 1350{ 1351 struct ctl_ioctl_info *ioctl_info; 1352 1353 ioctl_info = (struct ctl_ioctl_info *)arg; 1354 1355 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1356} 1357 1358static void 1359ctl_ioctl_offline(void *arg) 1360{ 1361 struct ctl_ioctl_info *ioctl_info; 1362 1363 ioctl_info = (struct ctl_ioctl_info *)arg; 1364 1365 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1366} 1367 1368/* 1369 * Remove an initiator by port number and initiator ID. 1370 * Returns 0 for success, -1 for failure. 1371 */ 1372int 1373ctl_remove_initiator(struct ctl_port *port, int iid) 1374{ 1375 struct ctl_softc *softc = control_softc; 1376 1377 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1378 1379 if (iid > CTL_MAX_INIT_PER_PORT) { 1380 printf("%s: initiator ID %u > maximun %u!\n", 1381 __func__, iid, CTL_MAX_INIT_PER_PORT); 1382 return (-1); 1383 } 1384 1385 mtx_lock(&softc->ctl_lock); 1386 port->wwpn_iid[iid].in_use--; 1387 port->wwpn_iid[iid].last_use = time_uptime; 1388 mtx_unlock(&softc->ctl_lock); 1389 1390 return (0); 1391} 1392 1393/* 1394 * Add an initiator to the initiator map. 1395 * Returns iid for success, < 0 for failure. 1396 */ 1397int 1398ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1399{ 1400 struct ctl_softc *softc = control_softc; 1401 time_t best_time; 1402 int i, best; 1403 1404 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1405 1406 if (iid >= CTL_MAX_INIT_PER_PORT) { 1407 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1408 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1409 free(name, M_CTL); 1410 return (-1); 1411 } 1412 1413 mtx_lock(&softc->ctl_lock); 1414 1415 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1416 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1417 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1418 iid = i; 1419 break; 1420 } 1421 if (name != NULL && port->wwpn_iid[i].name != NULL && 1422 strcmp(name, port->wwpn_iid[i].name) == 0) { 1423 iid = i; 1424 break; 1425 } 1426 } 1427 } 1428 1429 if (iid < 0) { 1430 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1431 if (port->wwpn_iid[i].in_use == 0 && 1432 port->wwpn_iid[i].wwpn == 0 && 1433 port->wwpn_iid[i].name == NULL) { 1434 iid = i; 1435 break; 1436 } 1437 } 1438 } 1439 1440 if (iid < 0) { 1441 best = -1; 1442 best_time = INT32_MAX; 1443 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1444 if (port->wwpn_iid[i].in_use == 0) { 1445 if (port->wwpn_iid[i].last_use < best_time) { 1446 best = i; 1447 best_time = port->wwpn_iid[i].last_use; 1448 } 1449 } 1450 } 1451 iid = best; 1452 } 1453 1454 if (iid < 0) { 1455 mtx_unlock(&softc->ctl_lock); 1456 free(name, M_CTL); 1457 return (-2); 1458 } 1459 1460 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1461 /* 1462 * This is not an error yet. 1463 */ 1464 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1465#if 0 1466 printf("%s: port %d iid %u WWPN %#jx arrived" 1467 " again\n", __func__, port->targ_port, 1468 iid, (uintmax_t)wwpn); 1469#endif 1470 goto take; 1471 } 1472 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1473 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1474#if 0 1475 printf("%s: port %d iid %u name '%s' arrived" 1476 " again\n", __func__, port->targ_port, 1477 iid, name); 1478#endif 1479 goto take; 1480 } 1481 1482 /* 1483 * This is an error, but what do we do about it? The 1484 * driver is telling us we have a new WWPN for this 1485 * initiator ID, so we pretty much need to use it. 1486 */ 1487 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1488 " but WWPN %#jx '%s' is still at that address\n", 1489 __func__, port->targ_port, iid, wwpn, name, 1490 (uintmax_t)port->wwpn_iid[iid].wwpn, 1491 port->wwpn_iid[iid].name); 1492 1493 /* 1494 * XXX KDM clear have_ca and ua_pending on each LUN for 1495 * this initiator. 1496 */ 1497 } 1498take: 1499 free(port->wwpn_iid[iid].name, M_CTL); 1500 port->wwpn_iid[iid].name = name; 1501 port->wwpn_iid[iid].wwpn = wwpn; 1502 port->wwpn_iid[iid].in_use++; 1503 mtx_unlock(&softc->ctl_lock); 1504 1505 return (iid); 1506} 1507 1508static int 1509ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1510{ 1511 int len; 1512 1513 switch (port->port_type) { 1514 case CTL_PORT_FC: 1515 { 1516 struct scsi_transportid_fcp *id = 1517 (struct scsi_transportid_fcp *)buf; 1518 if (port->wwpn_iid[iid].wwpn == 0) 1519 return (0); 1520 memset(id, 0, sizeof(*id)); 1521 id->format_protocol = SCSI_PROTO_FC; 1522 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1523 return (sizeof(*id)); 1524 } 1525 case CTL_PORT_ISCSI: 1526 { 1527 struct scsi_transportid_iscsi_port *id = 1528 (struct scsi_transportid_iscsi_port *)buf; 1529 if (port->wwpn_iid[iid].name == NULL) 1530 return (0); 1531 memset(id, 0, 256); 1532 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1533 SCSI_PROTO_ISCSI; 1534 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1535 len = roundup2(min(len, 252), 4); 1536 scsi_ulto2b(len, id->additional_length); 1537 return (sizeof(*id) + len); 1538 } 1539 case CTL_PORT_SAS: 1540 { 1541 struct scsi_transportid_sas *id = 1542 (struct scsi_transportid_sas *)buf; 1543 if (port->wwpn_iid[iid].wwpn == 0) 1544 return (0); 1545 memset(id, 0, sizeof(*id)); 1546 id->format_protocol = SCSI_PROTO_SAS; 1547 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1548 return (sizeof(*id)); 1549 } 1550 default: 1551 { 1552 struct scsi_transportid_spi *id = 1553 (struct scsi_transportid_spi *)buf; 1554 memset(id, 0, sizeof(*id)); 1555 id->format_protocol = SCSI_PROTO_SPI; 1556 scsi_ulto2b(iid, id->scsi_addr); 1557 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1558 return (sizeof(*id)); 1559 } 1560 } 1561} 1562 1563static int 1564ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1565{ 1566 return (0); 1567} 1568 1569static int 1570ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1571{ 1572 return (0); 1573} 1574 1575/* 1576 * Data movement routine for the CTL ioctl frontend port. 1577 */ 1578static int 1579ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1580{ 1581 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1582 struct ctl_sg_entry ext_entry, kern_entry; 1583 int ext_sglen, ext_sg_entries, kern_sg_entries; 1584 int ext_sg_start, ext_offset; 1585 int len_to_copy, len_copied; 1586 int kern_watermark, ext_watermark; 1587 int ext_sglist_malloced; 1588 int i, j; 1589 1590 ext_sglist_malloced = 0; 1591 ext_sg_start = 0; 1592 ext_offset = 0; 1593 1594 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1595 1596 /* 1597 * If this flag is set, fake the data transfer. 1598 */ 1599 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1600 ctsio->ext_data_filled = ctsio->ext_data_len; 1601 goto bailout; 1602 } 1603 1604 /* 1605 * To simplify things here, if we have a single buffer, stick it in 1606 * a S/G entry and just make it a single entry S/G list. 1607 */ 1608 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1609 int len_seen; 1610 1611 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1612 1613 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1614 M_WAITOK); 1615 ext_sglist_malloced = 1; 1616 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1617 ext_sglen) != 0) { 1618 ctl_set_internal_failure(ctsio, 1619 /*sks_valid*/ 0, 1620 /*retry_count*/ 0); 1621 goto bailout; 1622 } 1623 ext_sg_entries = ctsio->ext_sg_entries; 1624 len_seen = 0; 1625 for (i = 0; i < ext_sg_entries; i++) { 1626 if ((len_seen + ext_sglist[i].len) >= 1627 ctsio->ext_data_filled) { 1628 ext_sg_start = i; 1629 ext_offset = ctsio->ext_data_filled - len_seen; 1630 break; 1631 } 1632 len_seen += ext_sglist[i].len; 1633 } 1634 } else { 1635 ext_sglist = &ext_entry; 1636 ext_sglist->addr = ctsio->ext_data_ptr; 1637 ext_sglist->len = ctsio->ext_data_len; 1638 ext_sg_entries = 1; 1639 ext_sg_start = 0; 1640 ext_offset = ctsio->ext_data_filled; 1641 } 1642 1643 if (ctsio->kern_sg_entries > 0) { 1644 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1645 kern_sg_entries = ctsio->kern_sg_entries; 1646 } else { 1647 kern_sglist = &kern_entry; 1648 kern_sglist->addr = ctsio->kern_data_ptr; 1649 kern_sglist->len = ctsio->kern_data_len; 1650 kern_sg_entries = 1; 1651 } 1652 1653 1654 kern_watermark = 0; 1655 ext_watermark = ext_offset; 1656 len_copied = 0; 1657 for (i = ext_sg_start, j = 0; 1658 i < ext_sg_entries && j < kern_sg_entries;) { 1659 uint8_t *ext_ptr, *kern_ptr; 1660 1661 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1662 kern_sglist[j].len - kern_watermark); 1663 1664 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1665 ext_ptr = ext_ptr + ext_watermark; 1666 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1667 /* 1668 * XXX KDM fix this! 1669 */ 1670 panic("need to implement bus address support"); 1671#if 0 1672 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1673#endif 1674 } else 1675 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1676 kern_ptr = kern_ptr + kern_watermark; 1677 1678 kern_watermark += len_to_copy; 1679 ext_watermark += len_to_copy; 1680 1681 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1682 CTL_FLAG_DATA_IN) { 1683 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1684 "bytes to user\n", len_to_copy)); 1685 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1686 "to %p\n", kern_ptr, ext_ptr)); 1687 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1688 ctl_set_internal_failure(ctsio, 1689 /*sks_valid*/ 0, 1690 /*retry_count*/ 0); 1691 goto bailout; 1692 } 1693 } else { 1694 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1695 "bytes from user\n", len_to_copy)); 1696 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1697 "to %p\n", ext_ptr, kern_ptr)); 1698 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1699 ctl_set_internal_failure(ctsio, 1700 /*sks_valid*/ 0, 1701 /*retry_count*/0); 1702 goto bailout; 1703 } 1704 } 1705 1706 len_copied += len_to_copy; 1707 1708 if (ext_sglist[i].len == ext_watermark) { 1709 i++; 1710 ext_watermark = 0; 1711 } 1712 1713 if (kern_sglist[j].len == kern_watermark) { 1714 j++; 1715 kern_watermark = 0; 1716 } 1717 } 1718 1719 ctsio->ext_data_filled += len_copied; 1720 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1722 "kern_sg_entries: %d\n", ext_sg_entries, 1723 kern_sg_entries)); 1724 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1725 "kern_data_len = %d\n", ctsio->ext_data_len, 1726 ctsio->kern_data_len)); 1727 1728 1729 /* XXX KDM set residual?? */ 1730bailout: 1731 1732 if (ext_sglist_malloced != 0) 1733 free(ext_sglist, M_CTL); 1734 1735 return (CTL_RETVAL_COMPLETE); 1736} 1737 1738/* 1739 * Serialize a command that went down the "wrong" side, and so was sent to 1740 * this controller for execution. The logic is a little different than the 1741 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1742 * sent back to the other side, but in the success case, we execute the 1743 * command on this side (XFER mode) or tell the other side to execute it 1744 * (SER_ONLY mode). 1745 */ 1746static int 1747ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1748{ 1749 struct ctl_softc *ctl_softc; 1750 union ctl_ha_msg msg_info; 1751 struct ctl_lun *lun; 1752 int retval = 0; 1753 uint32_t targ_lun; 1754 1755 ctl_softc = control_softc; 1756 1757 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1758 lun = ctl_softc->ctl_luns[targ_lun]; 1759 if (lun==NULL) 1760 { 1761 /* 1762 * Why isn't LUN defined? The other side wouldn't 1763 * send a cmd if the LUN is undefined. 1764 */ 1765 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1766 1767 /* "Logical unit not supported" */ 1768 ctl_set_sense_data(&msg_info.scsi.sense_data, 1769 lun, 1770 /*sense_format*/SSD_TYPE_NONE, 1771 /*current_error*/ 1, 1772 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1773 /*asc*/ 0x25, 1774 /*ascq*/ 0x00, 1775 SSD_ELEM_NONE); 1776 1777 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1778 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1779 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1780 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1781 msg_info.hdr.serializing_sc = NULL; 1782 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1783 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1784 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1785 } 1786 return(1); 1787 1788 } 1789 1790 mtx_lock(&lun->lun_lock); 1791 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1792 1793 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1794 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1795 ooa_links))) { 1796 case CTL_ACTION_BLOCK: 1797 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1798 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1799 blocked_links); 1800 break; 1801 case CTL_ACTION_PASS: 1802 case CTL_ACTION_SKIP: 1803 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1804 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1805 ctl_enqueue_rtr((union ctl_io *)ctsio); 1806 } else { 1807 1808 /* send msg back to other side */ 1809 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1810 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1811 msg_info.hdr.msg_type = CTL_MSG_R2R; 1812#if 0 1813 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1814#endif 1815 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1816 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1817 } 1818 } 1819 break; 1820 case CTL_ACTION_OVERLAP: 1821 /* OVERLAPPED COMMANDS ATTEMPTED */ 1822 ctl_set_sense_data(&msg_info.scsi.sense_data, 1823 lun, 1824 /*sense_format*/SSD_TYPE_NONE, 1825 /*current_error*/ 1, 1826 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1827 /*asc*/ 0x4E, 1828 /*ascq*/ 0x00, 1829 SSD_ELEM_NONE); 1830 1831 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1832 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1833 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1834 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1835 msg_info.hdr.serializing_sc = NULL; 1836 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1837#if 0 1838 printf("BAD JUJU:Major Bummer Overlap\n"); 1839#endif 1840 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1841 retval = 1; 1842 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1843 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1844 } 1845 break; 1846 case CTL_ACTION_OVERLAP_TAG: 1847 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1848 ctl_set_sense_data(&msg_info.scsi.sense_data, 1849 lun, 1850 /*sense_format*/SSD_TYPE_NONE, 1851 /*current_error*/ 1, 1852 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1853 /*asc*/ 0x4D, 1854 /*ascq*/ ctsio->tag_num & 0xff, 1855 SSD_ELEM_NONE); 1856 1857 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1858 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1859 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1860 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1861 msg_info.hdr.serializing_sc = NULL; 1862 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1863#if 0 1864 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1865#endif 1866 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1867 retval = 1; 1868 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1869 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1870 } 1871 break; 1872 case CTL_ACTION_ERROR: 1873 default: 1874 /* "Internal target failure" */ 1875 ctl_set_sense_data(&msg_info.scsi.sense_data, 1876 lun, 1877 /*sense_format*/SSD_TYPE_NONE, 1878 /*current_error*/ 1, 1879 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1880 /*asc*/ 0x44, 1881 /*ascq*/ 0x00, 1882 SSD_ELEM_NONE); 1883 1884 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1885 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1886 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1887 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1888 msg_info.hdr.serializing_sc = NULL; 1889 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1890#if 0 1891 printf("BAD JUJU:Major Bummer HW Error\n"); 1892#endif 1893 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1894 retval = 1; 1895 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1896 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1897 } 1898 break; 1899 } 1900 mtx_unlock(&lun->lun_lock); 1901 return (retval); 1902} 1903 1904static int 1905ctl_ioctl_submit_wait(union ctl_io *io) 1906{ 1907 struct ctl_fe_ioctl_params params; 1908 ctl_fe_ioctl_state last_state; 1909 int done, retval; 1910 1911 retval = 0; 1912 1913 bzero(¶ms, sizeof(params)); 1914 1915 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1916 cv_init(¶ms.sem, "ctlioccv"); 1917 params.state = CTL_IOCTL_INPROG; 1918 last_state = params.state; 1919 1920 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1921 1922 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1923 1924 /* This shouldn't happen */ 1925 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1926 return (retval); 1927 1928 done = 0; 1929 1930 do { 1931 mtx_lock(¶ms.ioctl_mtx); 1932 /* 1933 * Check the state here, and don't sleep if the state has 1934 * already changed (i.e. wakeup has already occured, but we 1935 * weren't waiting yet). 1936 */ 1937 if (params.state == last_state) { 1938 /* XXX KDM cv_wait_sig instead? */ 1939 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1940 } 1941 last_state = params.state; 1942 1943 switch (params.state) { 1944 case CTL_IOCTL_INPROG: 1945 /* Why did we wake up? */ 1946 /* XXX KDM error here? */ 1947 mtx_unlock(¶ms.ioctl_mtx); 1948 break; 1949 case CTL_IOCTL_DATAMOVE: 1950 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1951 1952 /* 1953 * change last_state back to INPROG to avoid 1954 * deadlock on subsequent data moves. 1955 */ 1956 params.state = last_state = CTL_IOCTL_INPROG; 1957 1958 mtx_unlock(¶ms.ioctl_mtx); 1959 ctl_ioctl_do_datamove(&io->scsiio); 1960 /* 1961 * Note that in some cases, most notably writes, 1962 * this will queue the I/O and call us back later. 1963 * In other cases, generally reads, this routine 1964 * will immediately call back and wake us up, 1965 * probably using our own context. 1966 */ 1967 io->scsiio.be_move_done(io); 1968 break; 1969 case CTL_IOCTL_DONE: 1970 mtx_unlock(¶ms.ioctl_mtx); 1971 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1972 done = 1; 1973 break; 1974 default: 1975 mtx_unlock(¶ms.ioctl_mtx); 1976 /* XXX KDM error here? */ 1977 break; 1978 } 1979 } while (done == 0); 1980 1981 mtx_destroy(¶ms.ioctl_mtx); 1982 cv_destroy(¶ms.sem); 1983 1984 return (CTL_RETVAL_COMPLETE); 1985} 1986 1987static void 1988ctl_ioctl_datamove(union ctl_io *io) 1989{ 1990 struct ctl_fe_ioctl_params *params; 1991 1992 params = (struct ctl_fe_ioctl_params *) 1993 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1994 1995 mtx_lock(¶ms->ioctl_mtx); 1996 params->state = CTL_IOCTL_DATAMOVE; 1997 cv_broadcast(¶ms->sem); 1998 mtx_unlock(¶ms->ioctl_mtx); 1999} 2000 2001static void 2002ctl_ioctl_done(union ctl_io *io) 2003{ 2004 struct ctl_fe_ioctl_params *params; 2005 2006 params = (struct ctl_fe_ioctl_params *) 2007 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2008 2009 mtx_lock(¶ms->ioctl_mtx); 2010 params->state = CTL_IOCTL_DONE; 2011 cv_broadcast(¶ms->sem); 2012 mtx_unlock(¶ms->ioctl_mtx); 2013} 2014 2015static void 2016ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2017{ 2018 struct ctl_fe_ioctl_startstop_info *sd_info; 2019 2020 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2021 2022 sd_info->hs_info.status = metatask->status; 2023 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2024 sd_info->hs_info.luns_complete = 2025 metatask->taskinfo.startstop.luns_complete; 2026 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2027 2028 cv_broadcast(&sd_info->sem); 2029} 2030 2031static void 2032ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2033{ 2034 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2035 2036 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2037 2038 mtx_lock(fe_bbr_info->lock); 2039 fe_bbr_info->bbr_info->status = metatask->status; 2040 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2041 fe_bbr_info->wakeup_done = 1; 2042 mtx_unlock(fe_bbr_info->lock); 2043 2044 cv_broadcast(&fe_bbr_info->sem); 2045} 2046 2047/* 2048 * Returns 0 for success, errno for failure. 2049 */ 2050static int 2051ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2052 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2053{ 2054 union ctl_io *io; 2055 int retval; 2056 2057 retval = 0; 2058 2059 mtx_lock(&lun->lun_lock); 2060 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2061 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2062 ooa_links)) { 2063 struct ctl_ooa_entry *entry; 2064 2065 /* 2066 * If we've got more than we can fit, just count the 2067 * remaining entries. 2068 */ 2069 if (*cur_fill_num >= ooa_hdr->alloc_num) 2070 continue; 2071 2072 entry = &kern_entries[*cur_fill_num]; 2073 2074 entry->tag_num = io->scsiio.tag_num; 2075 entry->lun_num = lun->lun; 2076#ifdef CTL_TIME_IO 2077 entry->start_bt = io->io_hdr.start_bt; 2078#endif 2079 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2080 entry->cdb_len = io->scsiio.cdb_len; 2081 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2082 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2083 2084 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2092 2093 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2094 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2095 } 2096 mtx_unlock(&lun->lun_lock); 2097 2098 return (retval); 2099} 2100 2101static void * 2102ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2103 size_t error_str_len) 2104{ 2105 void *kptr; 2106 2107 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2108 2109 if (copyin(user_addr, kptr, len) != 0) { 2110 snprintf(error_str, error_str_len, "Error copying %d bytes " 2111 "from user address %p to kernel address %p", len, 2112 user_addr, kptr); 2113 free(kptr, M_CTL); 2114 return (NULL); 2115 } 2116 2117 return (kptr); 2118} 2119 2120static void 2121ctl_free_args(int num_args, struct ctl_be_arg *args) 2122{ 2123 int i; 2124 2125 if (args == NULL) 2126 return; 2127 2128 for (i = 0; i < num_args; i++) { 2129 free(args[i].kname, M_CTL); 2130 free(args[i].kvalue, M_CTL); 2131 } 2132 2133 free(args, M_CTL); 2134} 2135 2136static struct ctl_be_arg * 2137ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2138 char *error_str, size_t error_str_len) 2139{ 2140 struct ctl_be_arg *args; 2141 int i; 2142 2143 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2144 error_str, error_str_len); 2145 2146 if (args == NULL) 2147 goto bailout; 2148 2149 for (i = 0; i < num_args; i++) { 2150 args[i].kname = NULL; 2151 args[i].kvalue = NULL; 2152 } 2153 2154 for (i = 0; i < num_args; i++) { 2155 uint8_t *tmpptr; 2156 2157 args[i].kname = ctl_copyin_alloc(args[i].name, 2158 args[i].namelen, error_str, error_str_len); 2159 if (args[i].kname == NULL) 2160 goto bailout; 2161 2162 if (args[i].kname[args[i].namelen - 1] != '\0') { 2163 snprintf(error_str, error_str_len, "Argument %d " 2164 "name is not NUL-terminated", i); 2165 goto bailout; 2166 } 2167 2168 if (args[i].flags & CTL_BEARG_RD) { 2169 tmpptr = ctl_copyin_alloc(args[i].value, 2170 args[i].vallen, error_str, error_str_len); 2171 if (tmpptr == NULL) 2172 goto bailout; 2173 if ((args[i].flags & CTL_BEARG_ASCII) 2174 && (tmpptr[args[i].vallen - 1] != '\0')) { 2175 snprintf(error_str, error_str_len, "Argument " 2176 "%d value is not NUL-terminated", i); 2177 goto bailout; 2178 } 2179 args[i].kvalue = tmpptr; 2180 } else { 2181 args[i].kvalue = malloc(args[i].vallen, 2182 M_CTL, M_WAITOK | M_ZERO); 2183 } 2184 } 2185 2186 return (args); 2187bailout: 2188 2189 ctl_free_args(num_args, args); 2190 2191 return (NULL); 2192} 2193 2194static void 2195ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2196{ 2197 int i; 2198 2199 for (i = 0; i < num_args; i++) { 2200 if (args[i].flags & CTL_BEARG_WR) 2201 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2202 } 2203} 2204 2205/* 2206 * Escape characters that are illegal or not recommended in XML. 2207 */ 2208int 2209ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2210{ 2211 int retval; 2212 2213 retval = 0; 2214 2215 for (; *str; str++) { 2216 switch (*str) { 2217 case '&': 2218 retval = sbuf_printf(sb, "&"); 2219 break; 2220 case '>': 2221 retval = sbuf_printf(sb, ">"); 2222 break; 2223 case '<': 2224 retval = sbuf_printf(sb, "<"); 2225 break; 2226 default: 2227 retval = sbuf_putc(sb, *str); 2228 break; 2229 } 2230 2231 if (retval != 0) 2232 break; 2233 2234 } 2235 2236 return (retval); 2237} 2238 2239static int 2240ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2241 struct thread *td) 2242{ 2243 struct ctl_softc *softc; 2244 int retval; 2245 2246 softc = control_softc; 2247 2248 retval = 0; 2249 2250 switch (cmd) { 2251 case CTL_IO: { 2252 union ctl_io *io; 2253 void *pool_tmp; 2254 2255 /* 2256 * If we haven't been "enabled", don't allow any SCSI I/O 2257 * to this FETD. 2258 */ 2259 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2260 retval = EPERM; 2261 break; 2262 } 2263 2264 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2265 if (io == NULL) { 2266 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2267 retval = ENOSPC; 2268 break; 2269 } 2270 2271 /* 2272 * Need to save the pool reference so it doesn't get 2273 * spammed by the user's ctl_io. 2274 */ 2275 pool_tmp = io->io_hdr.pool; 2276 2277 memcpy(io, (void *)addr, sizeof(*io)); 2278 2279 io->io_hdr.pool = pool_tmp; 2280 /* 2281 * No status yet, so make sure the status is set properly. 2282 */ 2283 io->io_hdr.status = CTL_STATUS_NONE; 2284 2285 /* 2286 * The user sets the initiator ID, target and LUN IDs. 2287 */ 2288 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2289 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2290 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2291 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2292 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2293 2294 retval = ctl_ioctl_submit_wait(io); 2295 2296 if (retval != 0) { 2297 ctl_free_io(io); 2298 break; 2299 } 2300 2301 memcpy((void *)addr, io, sizeof(*io)); 2302 2303 /* return this to our pool */ 2304 ctl_free_io(io); 2305 2306 break; 2307 } 2308 case CTL_ENABLE_PORT: 2309 case CTL_DISABLE_PORT: 2310 case CTL_SET_PORT_WWNS: { 2311 struct ctl_port *port; 2312 struct ctl_port_entry *entry; 2313 2314 entry = (struct ctl_port_entry *)addr; 2315 2316 mtx_lock(&softc->ctl_lock); 2317 STAILQ_FOREACH(port, &softc->port_list, links) { 2318 int action, done; 2319 2320 action = 0; 2321 done = 0; 2322 2323 if ((entry->port_type == CTL_PORT_NONE) 2324 && (entry->targ_port == port->targ_port)) { 2325 /* 2326 * If the user only wants to enable or 2327 * disable or set WWNs on a specific port, 2328 * do the operation and we're done. 2329 */ 2330 action = 1; 2331 done = 1; 2332 } else if (entry->port_type & port->port_type) { 2333 /* 2334 * Compare the user's type mask with the 2335 * particular frontend type to see if we 2336 * have a match. 2337 */ 2338 action = 1; 2339 done = 0; 2340 2341 /* 2342 * Make sure the user isn't trying to set 2343 * WWNs on multiple ports at the same time. 2344 */ 2345 if (cmd == CTL_SET_PORT_WWNS) { 2346 printf("%s: Can't set WWNs on " 2347 "multiple ports\n", __func__); 2348 retval = EINVAL; 2349 break; 2350 } 2351 } 2352 if (action != 0) { 2353 /* 2354 * XXX KDM we have to drop the lock here, 2355 * because the online/offline operations 2356 * can potentially block. We need to 2357 * reference count the frontends so they 2358 * can't go away, 2359 */ 2360 mtx_unlock(&softc->ctl_lock); 2361 2362 if (cmd == CTL_ENABLE_PORT) { 2363 struct ctl_lun *lun; 2364 2365 STAILQ_FOREACH(lun, &softc->lun_list, 2366 links) { 2367 port->lun_enable(port->targ_lun_arg, 2368 lun->target, 2369 lun->lun); 2370 } 2371 2372 ctl_port_online(port); 2373 } else if (cmd == CTL_DISABLE_PORT) { 2374 struct ctl_lun *lun; 2375 2376 ctl_port_offline(port); 2377 2378 STAILQ_FOREACH(lun, &softc->lun_list, 2379 links) { 2380 port->lun_disable( 2381 port->targ_lun_arg, 2382 lun->target, 2383 lun->lun); 2384 } 2385 } 2386 2387 mtx_lock(&softc->ctl_lock); 2388 2389 if (cmd == CTL_SET_PORT_WWNS) 2390 ctl_port_set_wwns(port, 2391 (entry->flags & CTL_PORT_WWNN_VALID) ? 2392 1 : 0, entry->wwnn, 2393 (entry->flags & CTL_PORT_WWPN_VALID) ? 2394 1 : 0, entry->wwpn); 2395 } 2396 if (done != 0) 2397 break; 2398 } 2399 mtx_unlock(&softc->ctl_lock); 2400 break; 2401 } 2402 case CTL_GET_PORT_LIST: { 2403 struct ctl_port *port; 2404 struct ctl_port_list *list; 2405 int i; 2406 2407 list = (struct ctl_port_list *)addr; 2408 2409 if (list->alloc_len != (list->alloc_num * 2410 sizeof(struct ctl_port_entry))) { 2411 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2412 "alloc_num %u * sizeof(struct ctl_port_entry) " 2413 "%zu\n", __func__, list->alloc_len, 2414 list->alloc_num, sizeof(struct ctl_port_entry)); 2415 retval = EINVAL; 2416 break; 2417 } 2418 list->fill_len = 0; 2419 list->fill_num = 0; 2420 list->dropped_num = 0; 2421 i = 0; 2422 mtx_lock(&softc->ctl_lock); 2423 STAILQ_FOREACH(port, &softc->port_list, links) { 2424 struct ctl_port_entry entry, *list_entry; 2425 2426 if (list->fill_num >= list->alloc_num) { 2427 list->dropped_num++; 2428 continue; 2429 } 2430 2431 entry.port_type = port->port_type; 2432 strlcpy(entry.port_name, port->port_name, 2433 sizeof(entry.port_name)); 2434 entry.targ_port = port->targ_port; 2435 entry.physical_port = port->physical_port; 2436 entry.virtual_port = port->virtual_port; 2437 entry.wwnn = port->wwnn; 2438 entry.wwpn = port->wwpn; 2439 if (port->status & CTL_PORT_STATUS_ONLINE) 2440 entry.online = 1; 2441 else 2442 entry.online = 0; 2443 2444 list_entry = &list->entries[i]; 2445 2446 retval = copyout(&entry, list_entry, sizeof(entry)); 2447 if (retval != 0) { 2448 printf("%s: CTL_GET_PORT_LIST: copyout " 2449 "returned %d\n", __func__, retval); 2450 break; 2451 } 2452 i++; 2453 list->fill_num++; 2454 list->fill_len += sizeof(entry); 2455 } 2456 mtx_unlock(&softc->ctl_lock); 2457 2458 /* 2459 * If this is non-zero, we had a copyout fault, so there's 2460 * probably no point in attempting to set the status inside 2461 * the structure. 2462 */ 2463 if (retval != 0) 2464 break; 2465 2466 if (list->dropped_num > 0) 2467 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2468 else 2469 list->status = CTL_PORT_LIST_OK; 2470 break; 2471 } 2472 case CTL_DUMP_OOA: { 2473 struct ctl_lun *lun; 2474 union ctl_io *io; 2475 char printbuf[128]; 2476 struct sbuf sb; 2477 2478 mtx_lock(&softc->ctl_lock); 2479 printf("Dumping OOA queues:\n"); 2480 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2481 mtx_lock(&lun->lun_lock); 2482 for (io = (union ctl_io *)TAILQ_FIRST( 2483 &lun->ooa_queue); io != NULL; 2484 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2485 ooa_links)) { 2486 sbuf_new(&sb, printbuf, sizeof(printbuf), 2487 SBUF_FIXEDLEN); 2488 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2489 (intmax_t)lun->lun, 2490 io->scsiio.tag_num, 2491 (io->io_hdr.flags & 2492 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2493 (io->io_hdr.flags & 2494 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2495 (io->io_hdr.flags & 2496 CTL_FLAG_ABORT) ? " ABORT" : "", 2497 (io->io_hdr.flags & 2498 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2499 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2500 sbuf_finish(&sb); 2501 printf("%s\n", sbuf_data(&sb)); 2502 } 2503 mtx_unlock(&lun->lun_lock); 2504 } 2505 printf("OOA queues dump done\n"); 2506 mtx_unlock(&softc->ctl_lock); 2507 break; 2508 } 2509 case CTL_GET_OOA: { 2510 struct ctl_lun *lun; 2511 struct ctl_ooa *ooa_hdr; 2512 struct ctl_ooa_entry *entries; 2513 uint32_t cur_fill_num; 2514 2515 ooa_hdr = (struct ctl_ooa *)addr; 2516 2517 if ((ooa_hdr->alloc_len == 0) 2518 || (ooa_hdr->alloc_num == 0)) { 2519 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2520 "must be non-zero\n", __func__, 2521 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2522 retval = EINVAL; 2523 break; 2524 } 2525 2526 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2527 sizeof(struct ctl_ooa_entry))) { 2528 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2529 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2530 __func__, ooa_hdr->alloc_len, 2531 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2532 retval = EINVAL; 2533 break; 2534 } 2535 2536 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2537 if (entries == NULL) { 2538 printf("%s: could not allocate %d bytes for OOA " 2539 "dump\n", __func__, ooa_hdr->alloc_len); 2540 retval = ENOMEM; 2541 break; 2542 } 2543 2544 mtx_lock(&softc->ctl_lock); 2545 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2546 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2547 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2548 mtx_unlock(&softc->ctl_lock); 2549 free(entries, M_CTL); 2550 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2551 __func__, (uintmax_t)ooa_hdr->lun_num); 2552 retval = EINVAL; 2553 break; 2554 } 2555 2556 cur_fill_num = 0; 2557 2558 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2559 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2560 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2561 ooa_hdr, entries); 2562 if (retval != 0) 2563 break; 2564 } 2565 if (retval != 0) { 2566 mtx_unlock(&softc->ctl_lock); 2567 free(entries, M_CTL); 2568 break; 2569 } 2570 } else { 2571 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2572 2573 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2574 entries); 2575 } 2576 mtx_unlock(&softc->ctl_lock); 2577 2578 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2579 ooa_hdr->fill_len = ooa_hdr->fill_num * 2580 sizeof(struct ctl_ooa_entry); 2581 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2582 if (retval != 0) { 2583 printf("%s: error copying out %d bytes for OOA dump\n", 2584 __func__, ooa_hdr->fill_len); 2585 } 2586 2587 getbintime(&ooa_hdr->cur_bt); 2588 2589 if (cur_fill_num > ooa_hdr->alloc_num) { 2590 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2591 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2592 } else { 2593 ooa_hdr->dropped_num = 0; 2594 ooa_hdr->status = CTL_OOA_OK; 2595 } 2596 2597 free(entries, M_CTL); 2598 break; 2599 } 2600 case CTL_CHECK_OOA: { 2601 union ctl_io *io; 2602 struct ctl_lun *lun; 2603 struct ctl_ooa_info *ooa_info; 2604 2605 2606 ooa_info = (struct ctl_ooa_info *)addr; 2607 2608 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2609 ooa_info->status = CTL_OOA_INVALID_LUN; 2610 break; 2611 } 2612 mtx_lock(&softc->ctl_lock); 2613 lun = softc->ctl_luns[ooa_info->lun_id]; 2614 if (lun == NULL) { 2615 mtx_unlock(&softc->ctl_lock); 2616 ooa_info->status = CTL_OOA_INVALID_LUN; 2617 break; 2618 } 2619 mtx_lock(&lun->lun_lock); 2620 mtx_unlock(&softc->ctl_lock); 2621 ooa_info->num_entries = 0; 2622 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2623 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2624 &io->io_hdr, ooa_links)) { 2625 ooa_info->num_entries++; 2626 } 2627 mtx_unlock(&lun->lun_lock); 2628 2629 ooa_info->status = CTL_OOA_SUCCESS; 2630 2631 break; 2632 } 2633 case CTL_HARD_START: 2634 case CTL_HARD_STOP: { 2635 struct ctl_fe_ioctl_startstop_info ss_info; 2636 struct cfi_metatask *metatask; 2637 struct mtx hs_mtx; 2638 2639 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2640 2641 cv_init(&ss_info.sem, "hard start/stop cv" ); 2642 2643 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2644 if (metatask == NULL) { 2645 retval = ENOMEM; 2646 mtx_destroy(&hs_mtx); 2647 break; 2648 } 2649 2650 if (cmd == CTL_HARD_START) 2651 metatask->tasktype = CFI_TASK_STARTUP; 2652 else 2653 metatask->tasktype = CFI_TASK_SHUTDOWN; 2654 2655 metatask->callback = ctl_ioctl_hard_startstop_callback; 2656 metatask->callback_arg = &ss_info; 2657 2658 cfi_action(metatask); 2659 2660 /* Wait for the callback */ 2661 mtx_lock(&hs_mtx); 2662 cv_wait_sig(&ss_info.sem, &hs_mtx); 2663 mtx_unlock(&hs_mtx); 2664 2665 /* 2666 * All information has been copied from the metatask by the 2667 * time cv_broadcast() is called, so we free the metatask here. 2668 */ 2669 cfi_free_metatask(metatask); 2670 2671 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2672 2673 mtx_destroy(&hs_mtx); 2674 break; 2675 } 2676 case CTL_BBRREAD: { 2677 struct ctl_bbrread_info *bbr_info; 2678 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2679 struct mtx bbr_mtx; 2680 struct cfi_metatask *metatask; 2681 2682 bbr_info = (struct ctl_bbrread_info *)addr; 2683 2684 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2685 2686 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2687 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2688 2689 fe_bbr_info.bbr_info = bbr_info; 2690 fe_bbr_info.lock = &bbr_mtx; 2691 2692 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2693 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2694 2695 if (metatask == NULL) { 2696 mtx_destroy(&bbr_mtx); 2697 cv_destroy(&fe_bbr_info.sem); 2698 retval = ENOMEM; 2699 break; 2700 } 2701 metatask->tasktype = CFI_TASK_BBRREAD; 2702 metatask->callback = ctl_ioctl_bbrread_callback; 2703 metatask->callback_arg = &fe_bbr_info; 2704 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2705 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2706 metatask->taskinfo.bbrread.len = bbr_info->len; 2707 2708 cfi_action(metatask); 2709 2710 mtx_lock(&bbr_mtx); 2711 while (fe_bbr_info.wakeup_done == 0) 2712 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2713 mtx_unlock(&bbr_mtx); 2714 2715 bbr_info->status = metatask->status; 2716 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2717 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2718 memcpy(&bbr_info->sense_data, 2719 &metatask->taskinfo.bbrread.sense_data, 2720 ctl_min(sizeof(bbr_info->sense_data), 2721 sizeof(metatask->taskinfo.bbrread.sense_data))); 2722 2723 cfi_free_metatask(metatask); 2724 2725 mtx_destroy(&bbr_mtx); 2726 cv_destroy(&fe_bbr_info.sem); 2727 2728 break; 2729 } 2730 case CTL_DELAY_IO: { 2731 struct ctl_io_delay_info *delay_info; 2732#ifdef CTL_IO_DELAY 2733 struct ctl_lun *lun; 2734#endif /* CTL_IO_DELAY */ 2735 2736 delay_info = (struct ctl_io_delay_info *)addr; 2737 2738#ifdef CTL_IO_DELAY 2739 mtx_lock(&softc->ctl_lock); 2740 2741 if ((delay_info->lun_id > CTL_MAX_LUNS) 2742 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2743 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2744 } else { 2745 lun = softc->ctl_luns[delay_info->lun_id]; 2746 mtx_lock(&lun->lun_lock); 2747 2748 delay_info->status = CTL_DELAY_STATUS_OK; 2749 2750 switch (delay_info->delay_type) { 2751 case CTL_DELAY_TYPE_CONT: 2752 break; 2753 case CTL_DELAY_TYPE_ONESHOT: 2754 break; 2755 default: 2756 delay_info->status = 2757 CTL_DELAY_STATUS_INVALID_TYPE; 2758 break; 2759 } 2760 2761 switch (delay_info->delay_loc) { 2762 case CTL_DELAY_LOC_DATAMOVE: 2763 lun->delay_info.datamove_type = 2764 delay_info->delay_type; 2765 lun->delay_info.datamove_delay = 2766 delay_info->delay_secs; 2767 break; 2768 case CTL_DELAY_LOC_DONE: 2769 lun->delay_info.done_type = 2770 delay_info->delay_type; 2771 lun->delay_info.done_delay = 2772 delay_info->delay_secs; 2773 break; 2774 default: 2775 delay_info->status = 2776 CTL_DELAY_STATUS_INVALID_LOC; 2777 break; 2778 } 2779 mtx_unlock(&lun->lun_lock); 2780 } 2781 2782 mtx_unlock(&softc->ctl_lock); 2783#else 2784 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2785#endif /* CTL_IO_DELAY */ 2786 break; 2787 } 2788 case CTL_REALSYNC_SET: { 2789 int *syncstate; 2790 2791 syncstate = (int *)addr; 2792 2793 mtx_lock(&softc->ctl_lock); 2794 switch (*syncstate) { 2795 case 0: 2796 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2797 break; 2798 case 1: 2799 softc->flags |= CTL_FLAG_REAL_SYNC; 2800 break; 2801 default: 2802 retval = EINVAL; 2803 break; 2804 } 2805 mtx_unlock(&softc->ctl_lock); 2806 break; 2807 } 2808 case CTL_REALSYNC_GET: { 2809 int *syncstate; 2810 2811 syncstate = (int*)addr; 2812 2813 mtx_lock(&softc->ctl_lock); 2814 if (softc->flags & CTL_FLAG_REAL_SYNC) 2815 *syncstate = 1; 2816 else 2817 *syncstate = 0; 2818 mtx_unlock(&softc->ctl_lock); 2819 2820 break; 2821 } 2822 case CTL_SETSYNC: 2823 case CTL_GETSYNC: { 2824 struct ctl_sync_info *sync_info; 2825 struct ctl_lun *lun; 2826 2827 sync_info = (struct ctl_sync_info *)addr; 2828 2829 mtx_lock(&softc->ctl_lock); 2830 lun = softc->ctl_luns[sync_info->lun_id]; 2831 if (lun == NULL) { 2832 mtx_unlock(&softc->ctl_lock); 2833 sync_info->status = CTL_GS_SYNC_NO_LUN; 2834 } 2835 /* 2836 * Get or set the sync interval. We're not bounds checking 2837 * in the set case, hopefully the user won't do something 2838 * silly. 2839 */ 2840 mtx_lock(&lun->lun_lock); 2841 mtx_unlock(&softc->ctl_lock); 2842 if (cmd == CTL_GETSYNC) 2843 sync_info->sync_interval = lun->sync_interval; 2844 else 2845 lun->sync_interval = sync_info->sync_interval; 2846 mtx_unlock(&lun->lun_lock); 2847 2848 sync_info->status = CTL_GS_SYNC_OK; 2849 2850 break; 2851 } 2852 case CTL_GETSTATS: { 2853 struct ctl_stats *stats; 2854 struct ctl_lun *lun; 2855 int i; 2856 2857 stats = (struct ctl_stats *)addr; 2858 2859 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2860 stats->alloc_len) { 2861 stats->status = CTL_SS_NEED_MORE_SPACE; 2862 stats->num_luns = softc->num_luns; 2863 break; 2864 } 2865 /* 2866 * XXX KDM no locking here. If the LUN list changes, 2867 * things can blow up. 2868 */ 2869 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2870 i++, lun = STAILQ_NEXT(lun, links)) { 2871 retval = copyout(&lun->stats, &stats->lun_stats[i], 2872 sizeof(lun->stats)); 2873 if (retval != 0) 2874 break; 2875 } 2876 stats->num_luns = softc->num_luns; 2877 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2878 softc->num_luns; 2879 stats->status = CTL_SS_OK; 2880#ifdef CTL_TIME_IO 2881 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2882#else 2883 stats->flags = CTL_STATS_FLAG_NONE; 2884#endif 2885 getnanouptime(&stats->timestamp); 2886 break; 2887 } 2888 case CTL_ERROR_INJECT: { 2889 struct ctl_error_desc *err_desc, *new_err_desc; 2890 struct ctl_lun *lun; 2891 2892 err_desc = (struct ctl_error_desc *)addr; 2893 2894 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2895 M_WAITOK | M_ZERO); 2896 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2897 2898 mtx_lock(&softc->ctl_lock); 2899 lun = softc->ctl_luns[err_desc->lun_id]; 2900 if (lun == NULL) { 2901 mtx_unlock(&softc->ctl_lock); 2902 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2903 __func__, (uintmax_t)err_desc->lun_id); 2904 retval = EINVAL; 2905 break; 2906 } 2907 mtx_lock(&lun->lun_lock); 2908 mtx_unlock(&softc->ctl_lock); 2909 2910 /* 2911 * We could do some checking here to verify the validity 2912 * of the request, but given the complexity of error 2913 * injection requests, the checking logic would be fairly 2914 * complex. 2915 * 2916 * For now, if the request is invalid, it just won't get 2917 * executed and might get deleted. 2918 */ 2919 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2920 2921 /* 2922 * XXX KDM check to make sure the serial number is unique, 2923 * in case we somehow manage to wrap. That shouldn't 2924 * happen for a very long time, but it's the right thing to 2925 * do. 2926 */ 2927 new_err_desc->serial = lun->error_serial; 2928 err_desc->serial = lun->error_serial; 2929 lun->error_serial++; 2930 2931 mtx_unlock(&lun->lun_lock); 2932 break; 2933 } 2934 case CTL_ERROR_INJECT_DELETE: { 2935 struct ctl_error_desc *delete_desc, *desc, *desc2; 2936 struct ctl_lun *lun; 2937 int delete_done; 2938 2939 delete_desc = (struct ctl_error_desc *)addr; 2940 delete_done = 0; 2941 2942 mtx_lock(&softc->ctl_lock); 2943 lun = softc->ctl_luns[delete_desc->lun_id]; 2944 if (lun == NULL) { 2945 mtx_unlock(&softc->ctl_lock); 2946 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2947 __func__, (uintmax_t)delete_desc->lun_id); 2948 retval = EINVAL; 2949 break; 2950 } 2951 mtx_lock(&lun->lun_lock); 2952 mtx_unlock(&softc->ctl_lock); 2953 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2954 if (desc->serial != delete_desc->serial) 2955 continue; 2956 2957 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2958 links); 2959 free(desc, M_CTL); 2960 delete_done = 1; 2961 } 2962 mtx_unlock(&lun->lun_lock); 2963 if (delete_done == 0) { 2964 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2965 "error serial %ju on LUN %u\n", __func__, 2966 delete_desc->serial, delete_desc->lun_id); 2967 retval = EINVAL; 2968 break; 2969 } 2970 break; 2971 } 2972 case CTL_DUMP_STRUCTS: { 2973 int i, j, k, idx; 2974 struct ctl_port *port; 2975 struct ctl_frontend *fe; 2976 2977 mtx_lock(&softc->ctl_lock); 2978 printf("CTL Persistent Reservation information start:\n"); 2979 for (i = 0; i < CTL_MAX_LUNS; i++) { 2980 struct ctl_lun *lun; 2981 2982 lun = softc->ctl_luns[i]; 2983 2984 if ((lun == NULL) 2985 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2986 continue; 2987 2988 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2989 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2990 idx = j * CTL_MAX_INIT_PER_PORT + k; 2991 if (lun->per_res[idx].registered == 0) 2992 continue; 2993 printf(" LUN %d port %d iid %d key " 2994 "%#jx\n", i, j, k, 2995 (uintmax_t)scsi_8btou64( 2996 lun->per_res[idx].res_key.key)); 2997 } 2998 } 2999 } 3000 printf("CTL Persistent Reservation information end\n"); 3001 printf("CTL Ports:\n"); 3002 STAILQ_FOREACH(port, &softc->port_list, links) { 3003 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3004 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3005 port->frontend->name, port->port_type, 3006 port->physical_port, port->virtual_port, 3007 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3008 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3009 if (port->wwpn_iid[j].in_use == 0 && 3010 port->wwpn_iid[j].wwpn == 0 && 3011 port->wwpn_iid[j].name == NULL) 3012 continue; 3013 3014 printf(" iid %u use %d WWPN %#jx '%s'\n", 3015 j, port->wwpn_iid[j].in_use, 3016 (uintmax_t)port->wwpn_iid[j].wwpn, 3017 port->wwpn_iid[j].name); 3018 } 3019 } 3020 printf("CTL Port information end\n"); 3021 mtx_unlock(&softc->ctl_lock); 3022 /* 3023 * XXX KDM calling this without a lock. We'd likely want 3024 * to drop the lock before calling the frontend's dump 3025 * routine anyway. 3026 */ 3027 printf("CTL Frontends:\n"); 3028 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3029 printf(" Frontend '%s'\n", fe->name); 3030 if (fe->fe_dump != NULL) 3031 fe->fe_dump(); 3032 } 3033 printf("CTL Frontend information end\n"); 3034 break; 3035 } 3036 case CTL_LUN_REQ: { 3037 struct ctl_lun_req *lun_req; 3038 struct ctl_backend_driver *backend; 3039 3040 lun_req = (struct ctl_lun_req *)addr; 3041 3042 backend = ctl_backend_find(lun_req->backend); 3043 if (backend == NULL) { 3044 lun_req->status = CTL_LUN_ERROR; 3045 snprintf(lun_req->error_str, 3046 sizeof(lun_req->error_str), 3047 "Backend \"%s\" not found.", 3048 lun_req->backend); 3049 break; 3050 } 3051 if (lun_req->num_be_args > 0) { 3052 lun_req->kern_be_args = ctl_copyin_args( 3053 lun_req->num_be_args, 3054 lun_req->be_args, 3055 lun_req->error_str, 3056 sizeof(lun_req->error_str)); 3057 if (lun_req->kern_be_args == NULL) { 3058 lun_req->status = CTL_LUN_ERROR; 3059 break; 3060 } 3061 } 3062 3063 retval = backend->ioctl(dev, cmd, addr, flag, td); 3064 3065 if (lun_req->num_be_args > 0) { 3066 ctl_copyout_args(lun_req->num_be_args, 3067 lun_req->kern_be_args); 3068 ctl_free_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 } 3071 break; 3072 } 3073 case CTL_LUN_LIST: { 3074 struct sbuf *sb; 3075 struct ctl_lun *lun; 3076 struct ctl_lun_list *list; 3077 struct ctl_option *opt; 3078 3079 list = (struct ctl_lun_list *)addr; 3080 3081 /* 3082 * Allocate a fixed length sbuf here, based on the length 3083 * of the user's buffer. We could allocate an auto-extending 3084 * buffer, and then tell the user how much larger our 3085 * amount of data is than his buffer, but that presents 3086 * some problems: 3087 * 3088 * 1. The sbuf(9) routines use a blocking malloc, and so 3089 * we can't hold a lock while calling them with an 3090 * auto-extending buffer. 3091 * 3092 * 2. There is not currently a LUN reference counting 3093 * mechanism, outside of outstanding transactions on 3094 * the LUN's OOA queue. So a LUN could go away on us 3095 * while we're getting the LUN number, backend-specific 3096 * information, etc. Thus, given the way things 3097 * currently work, we need to hold the CTL lock while 3098 * grabbing LUN information. 3099 * 3100 * So, from the user's standpoint, the best thing to do is 3101 * allocate what he thinks is a reasonable buffer length, 3102 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3103 * double the buffer length and try again. (And repeat 3104 * that until he succeeds.) 3105 */ 3106 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3107 if (sb == NULL) { 3108 list->status = CTL_LUN_LIST_ERROR; 3109 snprintf(list->error_str, sizeof(list->error_str), 3110 "Unable to allocate %d bytes for LUN list", 3111 list->alloc_len); 3112 break; 3113 } 3114 3115 sbuf_printf(sb, "<ctllunlist>\n"); 3116 3117 mtx_lock(&softc->ctl_lock); 3118 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3119 mtx_lock(&lun->lun_lock); 3120 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3121 (uintmax_t)lun->lun); 3122 3123 /* 3124 * Bail out as soon as we see that we've overfilled 3125 * the buffer. 3126 */ 3127 if (retval != 0) 3128 break; 3129 3130 retval = sbuf_printf(sb, "\t<backend_type>%s" 3131 "</backend_type>\n", 3132 (lun->backend == NULL) ? "none" : 3133 lun->backend->name); 3134 3135 if (retval != 0) 3136 break; 3137 3138 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3139 lun->be_lun->lun_type); 3140 3141 if (retval != 0) 3142 break; 3143 3144 if (lun->backend == NULL) { 3145 retval = sbuf_printf(sb, "</lun>\n"); 3146 if (retval != 0) 3147 break; 3148 continue; 3149 } 3150 3151 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3152 (lun->be_lun->maxlba > 0) ? 3153 lun->be_lun->maxlba + 1 : 0); 3154 3155 if (retval != 0) 3156 break; 3157 3158 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3159 lun->be_lun->blocksize); 3160 3161 if (retval != 0) 3162 break; 3163 3164 retval = sbuf_printf(sb, "\t<serial_number>"); 3165 3166 if (retval != 0) 3167 break; 3168 3169 retval = ctl_sbuf_printf_esc(sb, 3170 lun->be_lun->serial_num); 3171 3172 if (retval != 0) 3173 break; 3174 3175 retval = sbuf_printf(sb, "</serial_number>\n"); 3176 3177 if (retval != 0) 3178 break; 3179 3180 retval = sbuf_printf(sb, "\t<device_id>"); 3181 3182 if (retval != 0) 3183 break; 3184 3185 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3186 3187 if (retval != 0) 3188 break; 3189 3190 retval = sbuf_printf(sb, "</device_id>\n"); 3191 3192 if (retval != 0) 3193 break; 3194 3195 if (lun->backend->lun_info != NULL) { 3196 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3197 if (retval != 0) 3198 break; 3199 } 3200 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3201 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3202 opt->name, opt->value, opt->name); 3203 if (retval != 0) 3204 break; 3205 } 3206 3207 retval = sbuf_printf(sb, "</lun>\n"); 3208 3209 if (retval != 0) 3210 break; 3211 mtx_unlock(&lun->lun_lock); 3212 } 3213 if (lun != NULL) 3214 mtx_unlock(&lun->lun_lock); 3215 mtx_unlock(&softc->ctl_lock); 3216 3217 if ((retval != 0) 3218 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3219 retval = 0; 3220 sbuf_delete(sb); 3221 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3222 snprintf(list->error_str, sizeof(list->error_str), 3223 "Out of space, %d bytes is too small", 3224 list->alloc_len); 3225 break; 3226 } 3227 3228 sbuf_finish(sb); 3229 3230 retval = copyout(sbuf_data(sb), list->lun_xml, 3231 sbuf_len(sb) + 1); 3232 3233 list->fill_len = sbuf_len(sb) + 1; 3234 list->status = CTL_LUN_LIST_OK; 3235 sbuf_delete(sb); 3236 break; 3237 } 3238 case CTL_ISCSI: { 3239 struct ctl_iscsi *ci; 3240 struct ctl_frontend *fe; 3241 3242 ci = (struct ctl_iscsi *)addr; 3243 3244 fe = ctl_frontend_find("iscsi"); 3245 if (fe == NULL) { 3246 ci->status = CTL_ISCSI_ERROR; 3247 snprintf(ci->error_str, sizeof(ci->error_str), 3248 "Frontend \"iscsi\" not found."); 3249 break; 3250 } 3251 3252 retval = fe->ioctl(dev, cmd, addr, flag, td); 3253 break; 3254 } 3255 case CTL_PORT_REQ: { 3256 struct ctl_req *req; 3257 struct ctl_frontend *fe; 3258 3259 req = (struct ctl_req *)addr; 3260 3261 fe = ctl_frontend_find(req->driver); 3262 if (fe == NULL) { 3263 req->status = CTL_LUN_ERROR; 3264 snprintf(req->error_str, sizeof(req->error_str), 3265 "Frontend \"%s\" not found.", req->driver); 3266 break; 3267 } 3268 if (req->num_args > 0) { 3269 req->kern_args = ctl_copyin_args(req->num_args, 3270 req->args, req->error_str, sizeof(req->error_str)); 3271 if (req->kern_args == NULL) { 3272 req->status = CTL_LUN_ERROR; 3273 break; 3274 } 3275 } 3276 3277 retval = fe->ioctl(dev, cmd, addr, flag, td); 3278 3279 if (req->num_args > 0) { 3280 ctl_copyout_args(req->num_args, req->kern_args); 3281 ctl_free_args(req->num_args, req->kern_args); 3282 } 3283 break; 3284 } 3285 case CTL_PORT_LIST: { 3286 struct sbuf *sb; 3287 struct ctl_port *port; 3288 struct ctl_lun_list *list; 3289 struct ctl_option *opt; 3290 3291 list = (struct ctl_lun_list *)addr; 3292 3293 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3294 if (sb == NULL) { 3295 list->status = CTL_LUN_LIST_ERROR; 3296 snprintf(list->error_str, sizeof(list->error_str), 3297 "Unable to allocate %d bytes for LUN list", 3298 list->alloc_len); 3299 break; 3300 } 3301 3302 sbuf_printf(sb, "<ctlportlist>\n"); 3303 3304 mtx_lock(&softc->ctl_lock); 3305 STAILQ_FOREACH(port, &softc->port_list, links) { 3306 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3307 (uintmax_t)port->targ_port); 3308 3309 /* 3310 * Bail out as soon as we see that we've overfilled 3311 * the buffer. 3312 */ 3313 if (retval != 0) 3314 break; 3315 3316 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3317 "</frontend_type>\n", port->frontend->name); 3318 if (retval != 0) 3319 break; 3320 3321 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3322 port->port_type); 3323 if (retval != 0) 3324 break; 3325 3326 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3327 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3328 if (retval != 0) 3329 break; 3330 3331 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3332 port->port_name); 3333 if (retval != 0) 3334 break; 3335 3336 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3337 port->physical_port); 3338 if (retval != 0) 3339 break; 3340 3341 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3342 port->virtual_port); 3343 if (retval != 0) 3344 break; 3345 3346 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3347 (uintmax_t)port->wwnn); 3348 if (retval != 0) 3349 break; 3350 3351 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3352 (uintmax_t)port->wwpn); 3353 if (retval != 0) 3354 break; 3355 3356 if (port->port_info != NULL) { 3357 retval = port->port_info(port->onoff_arg, sb); 3358 if (retval != 0) 3359 break; 3360 } 3361 STAILQ_FOREACH(opt, &port->options, links) { 3362 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3363 opt->name, opt->value, opt->name); 3364 if (retval != 0) 3365 break; 3366 } 3367 3368 retval = sbuf_printf(sb, "</targ_port>\n"); 3369 if (retval != 0) 3370 break; 3371 } 3372 mtx_unlock(&softc->ctl_lock); 3373 3374 if ((retval != 0) 3375 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3376 retval = 0; 3377 sbuf_delete(sb); 3378 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3379 snprintf(list->error_str, sizeof(list->error_str), 3380 "Out of space, %d bytes is too small", 3381 list->alloc_len); 3382 break; 3383 } 3384 3385 sbuf_finish(sb); 3386 3387 retval = copyout(sbuf_data(sb), list->lun_xml, 3388 sbuf_len(sb) + 1); 3389 3390 list->fill_len = sbuf_len(sb) + 1; 3391 list->status = CTL_LUN_LIST_OK; 3392 sbuf_delete(sb); 3393 break; 3394 } 3395 default: { 3396 /* XXX KDM should we fix this? */ 3397#if 0 3398 struct ctl_backend_driver *backend; 3399 unsigned int type; 3400 int found; 3401 3402 found = 0; 3403 3404 /* 3405 * We encode the backend type as the ioctl type for backend 3406 * ioctls. So parse it out here, and then search for a 3407 * backend of this type. 3408 */ 3409 type = _IOC_TYPE(cmd); 3410 3411 STAILQ_FOREACH(backend, &softc->be_list, links) { 3412 if (backend->type == type) { 3413 found = 1; 3414 break; 3415 } 3416 } 3417 if (found == 0) { 3418 printf("ctl: unknown ioctl command %#lx or backend " 3419 "%d\n", cmd, type); 3420 retval = EINVAL; 3421 break; 3422 } 3423 retval = backend->ioctl(dev, cmd, addr, flag, td); 3424#endif 3425 retval = ENOTTY; 3426 break; 3427 } 3428 } 3429 return (retval); 3430} 3431 3432uint32_t 3433ctl_get_initindex(struct ctl_nexus *nexus) 3434{ 3435 if (nexus->targ_port < CTL_MAX_PORTS) 3436 return (nexus->initid.id + 3437 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3438 else 3439 return (nexus->initid.id + 3440 ((nexus->targ_port - CTL_MAX_PORTS) * 3441 CTL_MAX_INIT_PER_PORT)); 3442} 3443 3444uint32_t 3445ctl_get_resindex(struct ctl_nexus *nexus) 3446{ 3447 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3448} 3449 3450uint32_t 3451ctl_port_idx(int port_num) 3452{ 3453 if (port_num < CTL_MAX_PORTS) 3454 return(port_num); 3455 else 3456 return(port_num - CTL_MAX_PORTS); 3457} 3458 3459static uint32_t 3460ctl_map_lun(int port_num, uint32_t lun_id) 3461{ 3462 struct ctl_port *port; 3463 3464 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3465 if (port == NULL) 3466 return (UINT32_MAX); 3467 if (port->lun_map == NULL) 3468 return (lun_id); 3469 return (port->lun_map(port->targ_lun_arg, lun_id)); 3470} 3471 3472static uint32_t 3473ctl_map_lun_back(int port_num, uint32_t lun_id) 3474{ 3475 struct ctl_port *port; 3476 uint32_t i; 3477 3478 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3479 if (port->lun_map == NULL) 3480 return (lun_id); 3481 for (i = 0; i < CTL_MAX_LUNS; i++) { 3482 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3483 return (i); 3484 } 3485 return (UINT32_MAX); 3486} 3487 3488/* 3489 * Note: This only works for bitmask sizes that are at least 32 bits, and 3490 * that are a power of 2. 3491 */ 3492int 3493ctl_ffz(uint32_t *mask, uint32_t size) 3494{ 3495 uint32_t num_chunks, num_pieces; 3496 int i, j; 3497 3498 num_chunks = (size >> 5); 3499 if (num_chunks == 0) 3500 num_chunks++; 3501 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3502 3503 for (i = 0; i < num_chunks; i++) { 3504 for (j = 0; j < num_pieces; j++) { 3505 if ((mask[i] & (1 << j)) == 0) 3506 return ((i << 5) + j); 3507 } 3508 } 3509 3510 return (-1); 3511} 3512 3513int 3514ctl_set_mask(uint32_t *mask, uint32_t bit) 3515{ 3516 uint32_t chunk, piece; 3517 3518 chunk = bit >> 5; 3519 piece = bit % (sizeof(uint32_t) * 8); 3520 3521 if ((mask[chunk] & (1 << piece)) != 0) 3522 return (-1); 3523 else 3524 mask[chunk] |= (1 << piece); 3525 3526 return (0); 3527} 3528 3529int 3530ctl_clear_mask(uint32_t *mask, uint32_t bit) 3531{ 3532 uint32_t chunk, piece; 3533 3534 chunk = bit >> 5; 3535 piece = bit % (sizeof(uint32_t) * 8); 3536 3537 if ((mask[chunk] & (1 << piece)) == 0) 3538 return (-1); 3539 else 3540 mask[chunk] &= ~(1 << piece); 3541 3542 return (0); 3543} 3544 3545int 3546ctl_is_set(uint32_t *mask, uint32_t bit) 3547{ 3548 uint32_t chunk, piece; 3549 3550 chunk = bit >> 5; 3551 piece = bit % (sizeof(uint32_t) * 8); 3552 3553 if ((mask[chunk] & (1 << piece)) == 0) 3554 return (0); 3555 else 3556 return (1); 3557} 3558 3559#ifdef unused 3560/* 3561 * The bus, target and lun are optional, they can be filled in later. 3562 * can_wait is used to determine whether we can wait on the malloc or not. 3563 */ 3564union ctl_io* 3565ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3566 uint32_t targ_lun, int can_wait) 3567{ 3568 union ctl_io *io; 3569 3570 if (can_wait) 3571 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3572 else 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3574 3575 if (io != NULL) { 3576 io->io_hdr.io_type = io_type; 3577 io->io_hdr.targ_port = targ_port; 3578 /* 3579 * XXX KDM this needs to change/go away. We need to move 3580 * to a preallocated pool of ctl_scsiio structures. 3581 */ 3582 io->io_hdr.nexus.targ_target.id = targ_target; 3583 io->io_hdr.nexus.targ_lun = targ_lun; 3584 } 3585 3586 return (io); 3587} 3588 3589void 3590ctl_kfree_io(union ctl_io *io) 3591{ 3592 free(io, M_CTL); 3593} 3594#endif /* unused */ 3595 3596/* 3597 * ctl_softc, pool_type, total_ctl_io are passed in. 3598 * npool is passed out. 3599 */ 3600int 3601ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3602 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3603{ 3604 uint32_t i; 3605 union ctl_io *cur_io, *next_io; 3606 struct ctl_io_pool *pool; 3607 int retval; 3608 3609 retval = 0; 3610 3611 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3612 M_NOWAIT | M_ZERO); 3613 if (pool == NULL) { 3614 retval = ENOMEM; 3615 goto bailout; 3616 } 3617 3618 pool->type = pool_type; 3619 pool->ctl_softc = ctl_softc; 3620 3621 mtx_lock(&ctl_softc->pool_lock); 3622 pool->id = ctl_softc->cur_pool_id++; 3623 mtx_unlock(&ctl_softc->pool_lock); 3624 3625 pool->flags = CTL_POOL_FLAG_NONE; 3626 pool->refcount = 1; /* Reference for validity. */ 3627 STAILQ_INIT(&pool->free_queue); 3628 3629 /* 3630 * XXX KDM other options here: 3631 * - allocate a page at a time 3632 * - allocate one big chunk of memory. 3633 * Page allocation might work well, but would take a little more 3634 * tracking. 3635 */ 3636 for (i = 0; i < total_ctl_io; i++) { 3637 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3638 M_NOWAIT); 3639 if (cur_io == NULL) { 3640 retval = ENOMEM; 3641 break; 3642 } 3643 cur_io->io_hdr.pool = pool; 3644 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3645 pool->total_ctl_io++; 3646 pool->free_ctl_io++; 3647 } 3648 3649 if (retval != 0) { 3650 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3651 cur_io != NULL; cur_io = next_io) { 3652 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3653 links); 3654 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3655 ctl_io_hdr, links); 3656 free(cur_io, M_CTLIO); 3657 } 3658 3659 free(pool, M_CTL); 3660 goto bailout; 3661 } 3662 mtx_lock(&ctl_softc->pool_lock); 3663 ctl_softc->num_pools++; 3664 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3665 /* 3666 * Increment our usage count if this is an external consumer, so we 3667 * can't get unloaded until the external consumer (most likely a 3668 * FETD) unloads and frees his pool. 3669 * 3670 * XXX KDM will this increment the caller's module use count, or 3671 * mine? 3672 */ 3673#if 0 3674 if ((pool_type != CTL_POOL_EMERGENCY) 3675 && (pool_type != CTL_POOL_INTERNAL) 3676 && (pool_type != CTL_POOL_4OTHERSC)) 3677 MOD_INC_USE_COUNT; 3678#endif 3679 3680 mtx_unlock(&ctl_softc->pool_lock); 3681 3682 *npool = pool; 3683 3684bailout: 3685 3686 return (retval); 3687} 3688 3689static int 3690ctl_pool_acquire(struct ctl_io_pool *pool) 3691{ 3692 3693 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3694 3695 if (pool->flags & CTL_POOL_FLAG_INVALID) 3696 return (EINVAL); 3697 3698 pool->refcount++; 3699 3700 return (0); 3701} 3702 3703static void 3704ctl_pool_release(struct ctl_io_pool *pool) 3705{ 3706 struct ctl_softc *ctl_softc = pool->ctl_softc; 3707 union ctl_io *io; 3708 3709 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3710 3711 if (--pool->refcount != 0) 3712 return; 3713 3714 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3715 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3716 links); 3717 free(io, M_CTLIO); 3718 } 3719 3720 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3721 ctl_softc->num_pools--; 3722 3723 /* 3724 * XXX KDM will this decrement the caller's usage count or mine? 3725 */ 3726#if 0 3727 if ((pool->type != CTL_POOL_EMERGENCY) 3728 && (pool->type != CTL_POOL_INTERNAL) 3729 && (pool->type != CTL_POOL_4OTHERSC)) 3730 MOD_DEC_USE_COUNT; 3731#endif 3732 3733 free(pool, M_CTL); 3734} 3735 3736void 3737ctl_pool_free(struct ctl_io_pool *pool) 3738{ 3739 struct ctl_softc *ctl_softc; 3740 3741 if (pool == NULL) 3742 return; 3743 3744 ctl_softc = pool->ctl_softc; 3745 mtx_lock(&ctl_softc->pool_lock); 3746 pool->flags |= CTL_POOL_FLAG_INVALID; 3747 ctl_pool_release(pool); 3748 mtx_unlock(&ctl_softc->pool_lock); 3749} 3750 3751/* 3752 * This routine does not block (except for spinlocks of course). 3753 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3754 * possible. 3755 */ 3756union ctl_io * 3757ctl_alloc_io(void *pool_ref) 3758{ 3759 union ctl_io *io; 3760 struct ctl_softc *ctl_softc; 3761 struct ctl_io_pool *pool, *npool; 3762 struct ctl_io_pool *emergency_pool; 3763 3764 pool = (struct ctl_io_pool *)pool_ref; 3765 3766 if (pool == NULL) { 3767 printf("%s: pool is NULL\n", __func__); 3768 return (NULL); 3769 } 3770 3771 emergency_pool = NULL; 3772 3773 ctl_softc = pool->ctl_softc; 3774 3775 mtx_lock(&ctl_softc->pool_lock); 3776 /* 3777 * First, try to get the io structure from the user's pool. 3778 */ 3779 if (ctl_pool_acquire(pool) == 0) { 3780 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3781 if (io != NULL) { 3782 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3783 pool->total_allocated++; 3784 pool->free_ctl_io--; 3785 mtx_unlock(&ctl_softc->pool_lock); 3786 return (io); 3787 } else 3788 ctl_pool_release(pool); 3789 } 3790 /* 3791 * If he doesn't have any io structures left, search for an 3792 * emergency pool and grab one from there. 3793 */ 3794 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3795 if (npool->type != CTL_POOL_EMERGENCY) 3796 continue; 3797 3798 if (ctl_pool_acquire(npool) != 0) 3799 continue; 3800 3801 emergency_pool = npool; 3802 3803 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3804 if (io != NULL) { 3805 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3806 npool->total_allocated++; 3807 npool->free_ctl_io--; 3808 mtx_unlock(&ctl_softc->pool_lock); 3809 return (io); 3810 } else 3811 ctl_pool_release(npool); 3812 } 3813 3814 /* Drop the spinlock before we malloc */ 3815 mtx_unlock(&ctl_softc->pool_lock); 3816 3817 /* 3818 * The emergency pool (if it exists) didn't have one, so try an 3819 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3820 */ 3821 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3822 if (io != NULL) { 3823 /* 3824 * If the emergency pool exists but is empty, add this 3825 * ctl_io to its list when it gets freed. 3826 */ 3827 if (emergency_pool != NULL) { 3828 mtx_lock(&ctl_softc->pool_lock); 3829 if (ctl_pool_acquire(emergency_pool) == 0) { 3830 io->io_hdr.pool = emergency_pool; 3831 emergency_pool->total_ctl_io++; 3832 /* 3833 * Need to bump this, otherwise 3834 * total_allocated and total_freed won't 3835 * match when we no longer have anything 3836 * outstanding. 3837 */ 3838 emergency_pool->total_allocated++; 3839 } 3840 mtx_unlock(&ctl_softc->pool_lock); 3841 } else 3842 io->io_hdr.pool = NULL; 3843 } 3844 3845 return (io); 3846} 3847 3848void 3849ctl_free_io(union ctl_io *io) 3850{ 3851 if (io == NULL) 3852 return; 3853 3854 /* 3855 * If this ctl_io has a pool, return it to that pool. 3856 */ 3857 if (io->io_hdr.pool != NULL) { 3858 struct ctl_io_pool *pool; 3859 3860 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3861 mtx_lock(&pool->ctl_softc->pool_lock); 3862 io->io_hdr.io_type = 0xff; 3863 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3864 pool->total_freed++; 3865 pool->free_ctl_io++; 3866 ctl_pool_release(pool); 3867 mtx_unlock(&pool->ctl_softc->pool_lock); 3868 } else { 3869 /* 3870 * Otherwise, just free it. We probably malloced it and 3871 * the emergency pool wasn't available. 3872 */ 3873 free(io, M_CTLIO); 3874 } 3875 3876} 3877 3878void 3879ctl_zero_io(union ctl_io *io) 3880{ 3881 void *pool_ref; 3882 3883 if (io == NULL) 3884 return; 3885 3886 /* 3887 * May need to preserve linked list pointers at some point too. 3888 */ 3889 pool_ref = io->io_hdr.pool; 3890 3891 memset(io, 0, sizeof(*io)); 3892 3893 io->io_hdr.pool = pool_ref; 3894} 3895 3896/* 3897 * This routine is currently used for internal copies of ctl_ios that need 3898 * to persist for some reason after we've already returned status to the 3899 * FETD. (Thus the flag set.) 3900 * 3901 * XXX XXX 3902 * Note that this makes a blind copy of all fields in the ctl_io, except 3903 * for the pool reference. This includes any memory that has been 3904 * allocated! That memory will no longer be valid after done has been 3905 * called, so this would be VERY DANGEROUS for command that actually does 3906 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3907 * start and stop commands, which don't transfer any data, so this is not a 3908 * problem. If it is used for anything else, the caller would also need to 3909 * allocate data buffer space and this routine would need to be modified to 3910 * copy the data buffer(s) as well. 3911 */ 3912void 3913ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3914{ 3915 void *pool_ref; 3916 3917 if ((src == NULL) 3918 || (dest == NULL)) 3919 return; 3920 3921 /* 3922 * May need to preserve linked list pointers at some point too. 3923 */ 3924 pool_ref = dest->io_hdr.pool; 3925 3926 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3927 3928 dest->io_hdr.pool = pool_ref; 3929 /* 3930 * We need to know that this is an internal copy, and doesn't need 3931 * to get passed back to the FETD that allocated it. 3932 */ 3933 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3934} 3935 3936#ifdef NEEDTOPORT 3937static void 3938ctl_update_power_subpage(struct copan_power_subpage *page) 3939{ 3940 int num_luns, num_partitions, config_type; 3941 struct ctl_softc *softc; 3942 cs_BOOL_t aor_present, shelf_50pct_power; 3943 cs_raidset_personality_t rs_type; 3944 int max_active_luns; 3945 3946 softc = control_softc; 3947 3948 /* subtract out the processor LUN */ 3949 num_luns = softc->num_luns - 1; 3950 /* 3951 * Default to 7 LUNs active, which was the only number we allowed 3952 * in the past. 3953 */ 3954 max_active_luns = 7; 3955 3956 num_partitions = config_GetRsPartitionInfo(); 3957 config_type = config_GetConfigType(); 3958 shelf_50pct_power = config_GetShelfPowerMode(); 3959 aor_present = config_IsAorRsPresent(); 3960 3961 rs_type = ddb_GetRsRaidType(1); 3962 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3963 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3964 EPRINT(0, "Unsupported RS type %d!", rs_type); 3965 } 3966 3967 3968 page->total_luns = num_luns; 3969 3970 switch (config_type) { 3971 case 40: 3972 /* 3973 * In a 40 drive configuration, it doesn't matter what DC 3974 * cards we have, whether we have AOR enabled or not, 3975 * partitioning or not, or what type of RAIDset we have. 3976 * In that scenario, we can power up every LUN we present 3977 * to the user. 3978 */ 3979 max_active_luns = num_luns; 3980 3981 break; 3982 case 64: 3983 if (shelf_50pct_power == CS_FALSE) { 3984 /* 25% power */ 3985 if (aor_present == CS_TRUE) { 3986 if (rs_type == 3987 CS_RAIDSET_PERSONALITY_RAID5) { 3988 max_active_luns = 7; 3989 } else if (rs_type == 3990 CS_RAIDSET_PERSONALITY_RAID1){ 3991 max_active_luns = 14; 3992 } else { 3993 /* XXX KDM now what?? */ 3994 } 3995 } else { 3996 if (rs_type == 3997 CS_RAIDSET_PERSONALITY_RAID5) { 3998 max_active_luns = 8; 3999 } else if (rs_type == 4000 CS_RAIDSET_PERSONALITY_RAID1){ 4001 max_active_luns = 16; 4002 } else { 4003 /* XXX KDM now what?? */ 4004 } 4005 } 4006 } else { 4007 /* 50% power */ 4008 /* 4009 * With 50% power in a 64 drive configuration, we 4010 * can power all LUNs we present. 4011 */ 4012 max_active_luns = num_luns; 4013 } 4014 break; 4015 case 112: 4016 if (shelf_50pct_power == CS_FALSE) { 4017 /* 25% power */ 4018 if (aor_present == CS_TRUE) { 4019 if (rs_type == 4020 CS_RAIDSET_PERSONALITY_RAID5) { 4021 max_active_luns = 7; 4022 } else if (rs_type == 4023 CS_RAIDSET_PERSONALITY_RAID1){ 4024 max_active_luns = 14; 4025 } else { 4026 /* XXX KDM now what?? */ 4027 } 4028 } else { 4029 if (rs_type == 4030 CS_RAIDSET_PERSONALITY_RAID5) { 4031 max_active_luns = 8; 4032 } else if (rs_type == 4033 CS_RAIDSET_PERSONALITY_RAID1){ 4034 max_active_luns = 16; 4035 } else { 4036 /* XXX KDM now what?? */ 4037 } 4038 } 4039 } else { 4040 /* 50% power */ 4041 if (aor_present == CS_TRUE) { 4042 if (rs_type == 4043 CS_RAIDSET_PERSONALITY_RAID5) { 4044 max_active_luns = 14; 4045 } else if (rs_type == 4046 CS_RAIDSET_PERSONALITY_RAID1){ 4047 /* 4048 * We're assuming here that disk 4049 * caching is enabled, and so we're 4050 * able to power up half of each 4051 * LUN, and cache all writes. 4052 */ 4053 max_active_luns = num_luns; 4054 } else { 4055 /* XXX KDM now what?? */ 4056 } 4057 } else { 4058 if (rs_type == 4059 CS_RAIDSET_PERSONALITY_RAID5) { 4060 max_active_luns = 15; 4061 } else if (rs_type == 4062 CS_RAIDSET_PERSONALITY_RAID1){ 4063 max_active_luns = 30; 4064 } else { 4065 /* XXX KDM now what?? */ 4066 } 4067 } 4068 } 4069 break; 4070 default: 4071 /* 4072 * In this case, we have an unknown configuration, so we 4073 * just use the default from above. 4074 */ 4075 break; 4076 } 4077 4078 page->max_active_luns = max_active_luns; 4079#if 0 4080 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4081 page->total_luns, page->max_active_luns); 4082#endif 4083} 4084#endif /* NEEDTOPORT */ 4085 4086/* 4087 * This routine could be used in the future to load default and/or saved 4088 * mode page parameters for a particuar lun. 4089 */ 4090static int 4091ctl_init_page_index(struct ctl_lun *lun) 4092{ 4093 int i; 4094 struct ctl_page_index *page_index; 4095 struct ctl_softc *softc; 4096 4097 memcpy(&lun->mode_pages.index, page_index_template, 4098 sizeof(page_index_template)); 4099 4100 softc = lun->ctl_softc; 4101 4102 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4103 4104 page_index = &lun->mode_pages.index[i]; 4105 /* 4106 * If this is a disk-only mode page, there's no point in 4107 * setting it up. For some pages, we have to have some 4108 * basic information about the disk in order to calculate the 4109 * mode page data. 4110 */ 4111 if ((lun->be_lun->lun_type != T_DIRECT) 4112 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4113 continue; 4114 4115 switch (page_index->page_code & SMPH_PC_MASK) { 4116 case SMS_FORMAT_DEVICE_PAGE: { 4117 struct scsi_format_page *format_page; 4118 4119 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4120 panic("subpage is incorrect!"); 4121 4122 /* 4123 * Sectors per track are set above. Bytes per 4124 * sector need to be set here on a per-LUN basis. 4125 */ 4126 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4127 &format_page_default, 4128 sizeof(format_page_default)); 4129 memcpy(&lun->mode_pages.format_page[ 4130 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4131 sizeof(format_page_changeable)); 4132 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4133 &format_page_default, 4134 sizeof(format_page_default)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 4139 format_page = &lun->mode_pages.format_page[ 4140 CTL_PAGE_CURRENT]; 4141 scsi_ulto2b(lun->be_lun->blocksize, 4142 format_page->bytes_per_sector); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_DEFAULT]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 format_page = &lun->mode_pages.format_page[ 4150 CTL_PAGE_SAVED]; 4151 scsi_ulto2b(lun->be_lun->blocksize, 4152 format_page->bytes_per_sector); 4153 4154 page_index->page_data = 4155 (uint8_t *)lun->mode_pages.format_page; 4156 break; 4157 } 4158 case SMS_RIGID_DISK_PAGE: { 4159 struct scsi_rigid_disk_page *rigid_disk_page; 4160 uint32_t sectors_per_cylinder; 4161 uint64_t cylinders; 4162#ifndef __XSCALE__ 4163 int shift; 4164#endif /* !__XSCALE__ */ 4165 4166 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4167 panic("invalid subpage value %d", 4168 page_index->subpage); 4169 4170 /* 4171 * Rotation rate and sectors per track are set 4172 * above. We calculate the cylinders here based on 4173 * capacity. Due to the number of heads and 4174 * sectors per track we're using, smaller arrays 4175 * may turn out to have 0 cylinders. Linux and 4176 * FreeBSD don't pay attention to these mode pages 4177 * to figure out capacity, but Solaris does. It 4178 * seems to deal with 0 cylinders just fine, and 4179 * works out a fake geometry based on the capacity. 4180 */ 4181 memcpy(&lun->mode_pages.rigid_disk_page[ 4182 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4183 sizeof(rigid_disk_page_default)); 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4186 sizeof(rigid_disk_page_changeable)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4189 sizeof(rigid_disk_page_default)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_SAVED], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 4194 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4195 CTL_DEFAULT_HEADS; 4196 4197 /* 4198 * The divide method here will be more accurate, 4199 * probably, but results in floating point being 4200 * used in the kernel on i386 (__udivdi3()). On the 4201 * XScale, though, __udivdi3() is implemented in 4202 * software. 4203 * 4204 * The shift method for cylinder calculation is 4205 * accurate if sectors_per_cylinder is a power of 4206 * 2. Otherwise it might be slightly off -- you 4207 * might have a bit of a truncation problem. 4208 */ 4209#ifdef __XSCALE__ 4210 cylinders = (lun->be_lun->maxlba + 1) / 4211 sectors_per_cylinder; 4212#else 4213 for (shift = 31; shift > 0; shift--) { 4214 if (sectors_per_cylinder & (1 << shift)) 4215 break; 4216 } 4217 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4218#endif 4219 4220 /* 4221 * We've basically got 3 bytes, or 24 bits for the 4222 * cylinder size in the mode page. If we're over, 4223 * just round down to 2^24. 4224 */ 4225 if (cylinders > 0xffffff) 4226 cylinders = 0xffffff; 4227 4228 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4229 CTL_PAGE_CURRENT]; 4230 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4231 4232 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4233 CTL_PAGE_DEFAULT]; 4234 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4235 4236 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4237 CTL_PAGE_SAVED]; 4238 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4239 4240 page_index->page_data = 4241 (uint8_t *)lun->mode_pages.rigid_disk_page; 4242 break; 4243 } 4244 case SMS_CACHING_PAGE: { 4245 4246 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4247 panic("invalid subpage value %d", 4248 page_index->subpage); 4249 /* 4250 * Defaults should be okay here, no calculations 4251 * needed. 4252 */ 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4263 &caching_page_default, 4264 sizeof(caching_page_default)); 4265 page_index->page_data = 4266 (uint8_t *)lun->mode_pages.caching_page; 4267 break; 4268 } 4269 case SMS_CONTROL_MODE_PAGE: { 4270 4271 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4272 panic("invalid subpage value %d", 4273 page_index->subpage); 4274 4275 /* 4276 * Defaults should be okay here, no calculations 4277 * needed. 4278 */ 4279 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4280 &control_page_default, 4281 sizeof(control_page_default)); 4282 memcpy(&lun->mode_pages.control_page[ 4283 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4284 sizeof(control_page_changeable)); 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4289 &control_page_default, 4290 sizeof(control_page_default)); 4291 page_index->page_data = 4292 (uint8_t *)lun->mode_pages.control_page; 4293 break; 4294 4295 } 4296 case SMS_VENDOR_SPECIFIC_PAGE:{ 4297 switch (page_index->subpage) { 4298 case PWR_SUBPAGE_CODE: { 4299 struct copan_power_subpage *current_page, 4300 *saved_page; 4301 4302 memcpy(&lun->mode_pages.power_subpage[ 4303 CTL_PAGE_CURRENT], 4304 &power_page_default, 4305 sizeof(power_page_default)); 4306 memcpy(&lun->mode_pages.power_subpage[ 4307 CTL_PAGE_CHANGEABLE], 4308 &power_page_changeable, 4309 sizeof(power_page_changeable)); 4310 memcpy(&lun->mode_pages.power_subpage[ 4311 CTL_PAGE_DEFAULT], 4312 &power_page_default, 4313 sizeof(power_page_default)); 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_SAVED], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 page_index->page_data = 4319 (uint8_t *)lun->mode_pages.power_subpage; 4320 4321 current_page = (struct copan_power_subpage *) 4322 (page_index->page_data + 4323 (page_index->page_len * 4324 CTL_PAGE_CURRENT)); 4325 saved_page = (struct copan_power_subpage *) 4326 (page_index->page_data + 4327 (page_index->page_len * 4328 CTL_PAGE_SAVED)); 4329 break; 4330 } 4331 case APS_SUBPAGE_CODE: { 4332 struct copan_aps_subpage *current_page, 4333 *saved_page; 4334 4335 // This gets set multiple times but 4336 // it should always be the same. It's 4337 // only done during init so who cares. 4338 index_to_aps_page = i; 4339 4340 memcpy(&lun->mode_pages.aps_subpage[ 4341 CTL_PAGE_CURRENT], 4342 &aps_page_default, 4343 sizeof(aps_page_default)); 4344 memcpy(&lun->mode_pages.aps_subpage[ 4345 CTL_PAGE_CHANGEABLE], 4346 &aps_page_changeable, 4347 sizeof(aps_page_changeable)); 4348 memcpy(&lun->mode_pages.aps_subpage[ 4349 CTL_PAGE_DEFAULT], 4350 &aps_page_default, 4351 sizeof(aps_page_default)); 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_SAVED], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 page_index->page_data = 4357 (uint8_t *)lun->mode_pages.aps_subpage; 4358 4359 current_page = (struct copan_aps_subpage *) 4360 (page_index->page_data + 4361 (page_index->page_len * 4362 CTL_PAGE_CURRENT)); 4363 saved_page = (struct copan_aps_subpage *) 4364 (page_index->page_data + 4365 (page_index->page_len * 4366 CTL_PAGE_SAVED)); 4367 break; 4368 } 4369 case DBGCNF_SUBPAGE_CODE: { 4370 struct copan_debugconf_subpage *current_page, 4371 *saved_page; 4372 4373 memcpy(&lun->mode_pages.debugconf_subpage[ 4374 CTL_PAGE_CURRENT], 4375 &debugconf_page_default, 4376 sizeof(debugconf_page_default)); 4377 memcpy(&lun->mode_pages.debugconf_subpage[ 4378 CTL_PAGE_CHANGEABLE], 4379 &debugconf_page_changeable, 4380 sizeof(debugconf_page_changeable)); 4381 memcpy(&lun->mode_pages.debugconf_subpage[ 4382 CTL_PAGE_DEFAULT], 4383 &debugconf_page_default, 4384 sizeof(debugconf_page_default)); 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_SAVED], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 page_index->page_data = 4390 (uint8_t *)lun->mode_pages.debugconf_subpage; 4391 4392 current_page = (struct copan_debugconf_subpage *) 4393 (page_index->page_data + 4394 (page_index->page_len * 4395 CTL_PAGE_CURRENT)); 4396 saved_page = (struct copan_debugconf_subpage *) 4397 (page_index->page_data + 4398 (page_index->page_len * 4399 CTL_PAGE_SAVED)); 4400 break; 4401 } 4402 default: 4403 panic("invalid subpage value %d", 4404 page_index->subpage); 4405 break; 4406 } 4407 break; 4408 } 4409 default: 4410 panic("invalid page value %d", 4411 page_index->page_code & SMPH_PC_MASK); 4412 break; 4413 } 4414 } 4415 4416 return (CTL_RETVAL_COMPLETE); 4417} 4418 4419/* 4420 * LUN allocation. 4421 * 4422 * Requirements: 4423 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4424 * wants us to allocate the LUN and he can block. 4425 * - ctl_softc is always set 4426 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4427 * 4428 * Returns 0 for success, non-zero (errno) for failure. 4429 */ 4430static int 4431ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4432 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4433{ 4434 struct ctl_lun *nlun, *lun; 4435 struct ctl_port *port; 4436 struct scsi_vpd_id_descriptor *desc; 4437 struct scsi_vpd_id_t10 *t10id; 4438 const char *eui, *naa, *scsiname, *vendor; 4439 int lun_number, i, lun_malloced; 4440 int devidlen, idlen1, idlen2 = 0, len; 4441 4442 if (be_lun == NULL) 4443 return (EINVAL); 4444 4445 /* 4446 * We currently only support Direct Access or Processor LUN types. 4447 */ 4448 switch (be_lun->lun_type) { 4449 case T_DIRECT: 4450 break; 4451 case T_PROCESSOR: 4452 break; 4453 case T_SEQUENTIAL: 4454 case T_CHANGER: 4455 default: 4456 be_lun->lun_config_status(be_lun->be_lun, 4457 CTL_LUN_CONFIG_FAILURE); 4458 break; 4459 } 4460 if (ctl_lun == NULL) { 4461 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4462 lun_malloced = 1; 4463 } else { 4464 lun_malloced = 0; 4465 lun = ctl_lun; 4466 } 4467 4468 memset(lun, 0, sizeof(*lun)); 4469 if (lun_malloced) 4470 lun->flags = CTL_LUN_MALLOCED; 4471 4472 /* Generate LUN ID. */ 4473 devidlen = max(CTL_DEVID_MIN_LEN, 4474 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4475 idlen1 = sizeof(*t10id) + devidlen; 4476 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4477 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4478 if (scsiname != NULL) { 4479 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4480 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4481 } 4482 eui = ctl_get_opt(&be_lun->options, "eui"); 4483 if (eui != NULL) { 4484 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4485 } 4486 naa = ctl_get_opt(&be_lun->options, "naa"); 4487 if (naa != NULL) { 4488 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4489 } 4490 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4491 M_CTL, M_WAITOK | M_ZERO); 4492 lun->lun_devid->len = len; 4493 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4494 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4495 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4496 desc->length = idlen1; 4497 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4498 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4499 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4500 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4501 } else { 4502 strncpy(t10id->vendor, vendor, 4503 min(sizeof(t10id->vendor), strlen(vendor))); 4504 } 4505 strncpy((char *)t10id->vendor_spec_id, 4506 (char *)be_lun->device_id, devidlen); 4507 if (scsiname != NULL) { 4508 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4509 desc->length); 4510 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4511 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4512 SVPD_ID_TYPE_SCSI_NAME; 4513 desc->length = idlen2; 4514 strlcpy(desc->identifier, scsiname, idlen2); 4515 } 4516 if (eui != NULL) { 4517 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4518 desc->length); 4519 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4520 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4521 SVPD_ID_TYPE_EUI64; 4522 desc->length = 8; 4523 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4524 } 4525 if (naa != NULL) { 4526 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4527 desc->length); 4528 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4529 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4530 SVPD_ID_TYPE_NAA; 4531 desc->length = 8; 4532 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4533 } 4534 4535 mtx_lock(&ctl_softc->ctl_lock); 4536 /* 4537 * See if the caller requested a particular LUN number. If so, see 4538 * if it is available. Otherwise, allocate the first available LUN. 4539 */ 4540 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4541 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4542 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4543 mtx_unlock(&ctl_softc->ctl_lock); 4544 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4545 printf("ctl: requested LUN ID %d is higher " 4546 "than CTL_MAX_LUNS - 1 (%d)\n", 4547 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4548 } else { 4549 /* 4550 * XXX KDM return an error, or just assign 4551 * another LUN ID in this case?? 4552 */ 4553 printf("ctl: requested LUN ID %d is already " 4554 "in use\n", be_lun->req_lun_id); 4555 } 4556 if (lun->flags & CTL_LUN_MALLOCED) 4557 free(lun, M_CTL); 4558 be_lun->lun_config_status(be_lun->be_lun, 4559 CTL_LUN_CONFIG_FAILURE); 4560 return (ENOSPC); 4561 } 4562 lun_number = be_lun->req_lun_id; 4563 } else { 4564 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4565 if (lun_number == -1) { 4566 mtx_unlock(&ctl_softc->ctl_lock); 4567 printf("ctl: can't allocate LUN on target %ju, out of " 4568 "LUNs\n", (uintmax_t)target_id.id); 4569 if (lun->flags & CTL_LUN_MALLOCED) 4570 free(lun, M_CTL); 4571 be_lun->lun_config_status(be_lun->be_lun, 4572 CTL_LUN_CONFIG_FAILURE); 4573 return (ENOSPC); 4574 } 4575 } 4576 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4577 4578 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4579 lun->target = target_id; 4580 lun->lun = lun_number; 4581 lun->be_lun = be_lun; 4582 /* 4583 * The processor LUN is always enabled. Disk LUNs come on line 4584 * disabled, and must be enabled by the backend. 4585 */ 4586 lun->flags |= CTL_LUN_DISABLED; 4587 lun->backend = be_lun->be; 4588 be_lun->ctl_lun = lun; 4589 be_lun->lun_id = lun_number; 4590 atomic_add_int(&be_lun->be->num_luns, 1); 4591 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4592 lun->flags |= CTL_LUN_STOPPED; 4593 4594 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4595 lun->flags |= CTL_LUN_INOPERABLE; 4596 4597 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4598 lun->flags |= CTL_LUN_PRIMARY_SC; 4599 4600 lun->ctl_softc = ctl_softc; 4601 TAILQ_INIT(&lun->ooa_queue); 4602 TAILQ_INIT(&lun->blocked_queue); 4603 STAILQ_INIT(&lun->error_list); 4604 ctl_tpc_lun_init(lun); 4605 4606 /* 4607 * Initialize the mode page index. 4608 */ 4609 ctl_init_page_index(lun); 4610 4611 /* 4612 * Set the poweron UA for all initiators on this LUN only. 4613 */ 4614 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4615 lun->pending_ua[i] = CTL_UA_POWERON; 4616 4617 /* 4618 * Now, before we insert this lun on the lun list, set the lun 4619 * inventory changed UA for all other luns. 4620 */ 4621 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4622 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4623 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4624 } 4625 } 4626 4627 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4628 4629 ctl_softc->ctl_luns[lun_number] = lun; 4630 4631 ctl_softc->num_luns++; 4632 4633 /* Setup statistics gathering */ 4634 lun->stats.device_type = be_lun->lun_type; 4635 lun->stats.lun_number = lun_number; 4636 if (lun->stats.device_type == T_DIRECT) 4637 lun->stats.blocksize = be_lun->blocksize; 4638 else 4639 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4640 for (i = 0;i < CTL_MAX_PORTS;i++) 4641 lun->stats.ports[i].targ_port = i; 4642 4643 mtx_unlock(&ctl_softc->ctl_lock); 4644 4645 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4646 4647 /* 4648 * Run through each registered FETD and bring it online if it isn't 4649 * already. Enable the target ID if it hasn't been enabled, and 4650 * enable this particular LUN. 4651 */ 4652 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4653 int retval; 4654 4655 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4656 if (retval != 0) { 4657 printf("ctl_alloc_lun: FETD %s port %d returned error " 4658 "%d for lun_enable on target %ju lun %d\n", 4659 port->port_name, port->targ_port, retval, 4660 (uintmax_t)target_id.id, lun_number); 4661 } else 4662 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4663 } 4664 return (0); 4665} 4666 4667/* 4668 * Delete a LUN. 4669 * Assumptions: 4670 * - LUN has already been marked invalid and any pending I/O has been taken 4671 * care of. 4672 */ 4673static int 4674ctl_free_lun(struct ctl_lun *lun) 4675{ 4676 struct ctl_softc *softc; 4677#if 0 4678 struct ctl_port *port; 4679#endif 4680 struct ctl_lun *nlun; 4681 int i; 4682 4683 softc = lun->ctl_softc; 4684 4685 mtx_assert(&softc->ctl_lock, MA_OWNED); 4686 4687 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4688 4689 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4690 4691 softc->ctl_luns[lun->lun] = NULL; 4692 4693 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4694 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4695 4696 softc->num_luns--; 4697 4698 /* 4699 * XXX KDM this scheme only works for a single target/multiple LUN 4700 * setup. It needs to be revamped for a multiple target scheme. 4701 * 4702 * XXX KDM this results in port->lun_disable() getting called twice, 4703 * once when ctl_disable_lun() is called, and a second time here. 4704 * We really need to re-think the LUN disable semantics. There 4705 * should probably be several steps/levels to LUN removal: 4706 * - disable 4707 * - invalidate 4708 * - free 4709 * 4710 * Right now we only have a disable method when communicating to 4711 * the front end ports, at least for individual LUNs. 4712 */ 4713#if 0 4714 STAILQ_FOREACH(port, &softc->port_list, links) { 4715 int retval; 4716 4717 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4718 lun->lun); 4719 if (retval != 0) { 4720 printf("ctl_free_lun: FETD %s port %d returned error " 4721 "%d for lun_disable on target %ju lun %jd\n", 4722 port->port_name, port->targ_port, retval, 4723 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4724 } 4725 4726 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4727 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4728 4729 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4730 if (retval != 0) { 4731 printf("ctl_free_lun: FETD %s port %d " 4732 "returned error %d for targ_disable on " 4733 "target %ju\n", port->port_name, 4734 port->targ_port, retval, 4735 (uintmax_t)lun->target.id); 4736 } else 4737 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4738 4739 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4740 continue; 4741 4742#if 0 4743 port->port_offline(port->onoff_arg); 4744 port->status &= ~CTL_PORT_STATUS_ONLINE; 4745#endif 4746 } 4747 } 4748#endif 4749 4750 /* 4751 * Tell the backend to free resources, if this LUN has a backend. 4752 */ 4753 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4754 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4755 4756 ctl_tpc_lun_shutdown(lun); 4757 mtx_destroy(&lun->lun_lock); 4758 free(lun->lun_devid, M_CTL); 4759 if (lun->flags & CTL_LUN_MALLOCED) 4760 free(lun, M_CTL); 4761 4762 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4763 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4764 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4765 } 4766 } 4767 4768 return (0); 4769} 4770 4771static void 4772ctl_create_lun(struct ctl_be_lun *be_lun) 4773{ 4774 struct ctl_softc *ctl_softc; 4775 4776 ctl_softc = control_softc; 4777 4778 /* 4779 * ctl_alloc_lun() should handle all potential failure cases. 4780 */ 4781 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4782} 4783 4784int 4785ctl_add_lun(struct ctl_be_lun *be_lun) 4786{ 4787 struct ctl_softc *ctl_softc = control_softc; 4788 4789 mtx_lock(&ctl_softc->ctl_lock); 4790 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4791 mtx_unlock(&ctl_softc->ctl_lock); 4792 wakeup(&ctl_softc->pending_lun_queue); 4793 4794 return (0); 4795} 4796 4797int 4798ctl_enable_lun(struct ctl_be_lun *be_lun) 4799{ 4800 struct ctl_softc *ctl_softc; 4801 struct ctl_port *port, *nport; 4802 struct ctl_lun *lun; 4803 int retval; 4804 4805 ctl_softc = control_softc; 4806 4807 lun = (struct ctl_lun *)be_lun->ctl_lun; 4808 4809 mtx_lock(&ctl_softc->ctl_lock); 4810 mtx_lock(&lun->lun_lock); 4811 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4812 /* 4813 * eh? Why did we get called if the LUN is already 4814 * enabled? 4815 */ 4816 mtx_unlock(&lun->lun_lock); 4817 mtx_unlock(&ctl_softc->ctl_lock); 4818 return (0); 4819 } 4820 lun->flags &= ~CTL_LUN_DISABLED; 4821 mtx_unlock(&lun->lun_lock); 4822 4823 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4824 nport = STAILQ_NEXT(port, links); 4825 4826 /* 4827 * Drop the lock while we call the FETD's enable routine. 4828 * This can lead to a callback into CTL (at least in the 4829 * case of the internal initiator frontend. 4830 */ 4831 mtx_unlock(&ctl_softc->ctl_lock); 4832 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4833 mtx_lock(&ctl_softc->ctl_lock); 4834 if (retval != 0) { 4835 printf("%s: FETD %s port %d returned error " 4836 "%d for lun_enable on target %ju lun %jd\n", 4837 __func__, port->port_name, port->targ_port, retval, 4838 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4839 } 4840#if 0 4841 else { 4842 /* NOTE: TODO: why does lun enable affect port status? */ 4843 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4844 } 4845#endif 4846 } 4847 4848 mtx_unlock(&ctl_softc->ctl_lock); 4849 4850 return (0); 4851} 4852 4853int 4854ctl_disable_lun(struct ctl_be_lun *be_lun) 4855{ 4856 struct ctl_softc *ctl_softc; 4857 struct ctl_port *port; 4858 struct ctl_lun *lun; 4859 int retval; 4860 4861 ctl_softc = control_softc; 4862 4863 lun = (struct ctl_lun *)be_lun->ctl_lun; 4864 4865 mtx_lock(&ctl_softc->ctl_lock); 4866 mtx_lock(&lun->lun_lock); 4867 if (lun->flags & CTL_LUN_DISABLED) { 4868 mtx_unlock(&lun->lun_lock); 4869 mtx_unlock(&ctl_softc->ctl_lock); 4870 return (0); 4871 } 4872 lun->flags |= CTL_LUN_DISABLED; 4873 mtx_unlock(&lun->lun_lock); 4874 4875 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4876 mtx_unlock(&ctl_softc->ctl_lock); 4877 /* 4878 * Drop the lock before we call the frontend's disable 4879 * routine, to avoid lock order reversals. 4880 * 4881 * XXX KDM what happens if the frontend list changes while 4882 * we're traversing it? It's unlikely, but should be handled. 4883 */ 4884 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4885 lun->lun); 4886 mtx_lock(&ctl_softc->ctl_lock); 4887 if (retval != 0) { 4888 printf("ctl_alloc_lun: FETD %s port %d returned error " 4889 "%d for lun_disable on target %ju lun %jd\n", 4890 port->port_name, port->targ_port, retval, 4891 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4892 } 4893 } 4894 4895 mtx_unlock(&ctl_softc->ctl_lock); 4896 4897 return (0); 4898} 4899 4900int 4901ctl_start_lun(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_softc *ctl_softc; 4904 struct ctl_lun *lun; 4905 4906 ctl_softc = control_softc; 4907 4908 lun = (struct ctl_lun *)be_lun->ctl_lun; 4909 4910 mtx_lock(&lun->lun_lock); 4911 lun->flags &= ~CTL_LUN_STOPPED; 4912 mtx_unlock(&lun->lun_lock); 4913 4914 return (0); 4915} 4916 4917int 4918ctl_stop_lun(struct ctl_be_lun *be_lun) 4919{ 4920 struct ctl_softc *ctl_softc; 4921 struct ctl_lun *lun; 4922 4923 ctl_softc = control_softc; 4924 4925 lun = (struct ctl_lun *)be_lun->ctl_lun; 4926 4927 mtx_lock(&lun->lun_lock); 4928 lun->flags |= CTL_LUN_STOPPED; 4929 mtx_unlock(&lun->lun_lock); 4930 4931 return (0); 4932} 4933 4934int 4935ctl_lun_offline(struct ctl_be_lun *be_lun) 4936{ 4937 struct ctl_softc *ctl_softc; 4938 struct ctl_lun *lun; 4939 4940 ctl_softc = control_softc; 4941 4942 lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 4944 mtx_lock(&lun->lun_lock); 4945 lun->flags |= CTL_LUN_OFFLINE; 4946 mtx_unlock(&lun->lun_lock); 4947 4948 return (0); 4949} 4950 4951int 4952ctl_lun_online(struct ctl_be_lun *be_lun) 4953{ 4954 struct ctl_softc *ctl_softc; 4955 struct ctl_lun *lun; 4956 4957 ctl_softc = control_softc; 4958 4959 lun = (struct ctl_lun *)be_lun->ctl_lun; 4960 4961 mtx_lock(&lun->lun_lock); 4962 lun->flags &= ~CTL_LUN_OFFLINE; 4963 mtx_unlock(&lun->lun_lock); 4964 4965 return (0); 4966} 4967 4968int 4969ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4970{ 4971 struct ctl_softc *ctl_softc; 4972 struct ctl_lun *lun; 4973 4974 ctl_softc = control_softc; 4975 4976 lun = (struct ctl_lun *)be_lun->ctl_lun; 4977 4978 mtx_lock(&lun->lun_lock); 4979 4980 /* 4981 * The LUN needs to be disabled before it can be marked invalid. 4982 */ 4983 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4984 mtx_unlock(&lun->lun_lock); 4985 return (-1); 4986 } 4987 /* 4988 * Mark the LUN invalid. 4989 */ 4990 lun->flags |= CTL_LUN_INVALID; 4991 4992 /* 4993 * If there is nothing in the OOA queue, go ahead and free the LUN. 4994 * If we have something in the OOA queue, we'll free it when the 4995 * last I/O completes. 4996 */ 4997 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4998 mtx_unlock(&lun->lun_lock); 4999 mtx_lock(&ctl_softc->ctl_lock); 5000 ctl_free_lun(lun); 5001 mtx_unlock(&ctl_softc->ctl_lock); 5002 } else 5003 mtx_unlock(&lun->lun_lock); 5004 5005 return (0); 5006} 5007 5008int 5009ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5010{ 5011 struct ctl_softc *ctl_softc; 5012 struct ctl_lun *lun; 5013 5014 ctl_softc = control_softc; 5015 lun = (struct ctl_lun *)be_lun->ctl_lun; 5016 5017 mtx_lock(&lun->lun_lock); 5018 lun->flags |= CTL_LUN_INOPERABLE; 5019 mtx_unlock(&lun->lun_lock); 5020 5021 return (0); 5022} 5023 5024int 5025ctl_lun_operable(struct ctl_be_lun *be_lun) 5026{ 5027 struct ctl_softc *ctl_softc; 5028 struct ctl_lun *lun; 5029 5030 ctl_softc = control_softc; 5031 lun = (struct ctl_lun *)be_lun->ctl_lun; 5032 5033 mtx_lock(&lun->lun_lock); 5034 lun->flags &= ~CTL_LUN_INOPERABLE; 5035 mtx_unlock(&lun->lun_lock); 5036 5037 return (0); 5038} 5039 5040int 5041ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5042 int lock) 5043{ 5044 struct ctl_softc *softc; 5045 struct ctl_lun *lun; 5046 struct copan_aps_subpage *current_sp; 5047 struct ctl_page_index *page_index; 5048 int i; 5049 5050 softc = control_softc; 5051 5052 mtx_lock(&softc->ctl_lock); 5053 5054 lun = (struct ctl_lun *)be_lun->ctl_lun; 5055 mtx_lock(&lun->lun_lock); 5056 5057 page_index = NULL; 5058 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5059 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5060 APS_PAGE_CODE) 5061 continue; 5062 5063 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5064 continue; 5065 page_index = &lun->mode_pages.index[i]; 5066 } 5067 5068 if (page_index == NULL) { 5069 mtx_unlock(&lun->lun_lock); 5070 mtx_unlock(&softc->ctl_lock); 5071 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5072 (uintmax_t)lun->lun); 5073 return (1); 5074 } 5075#if 0 5076 if ((softc->aps_locked_lun != 0) 5077 && (softc->aps_locked_lun != lun->lun)) { 5078 printf("%s: attempt to lock LUN %llu when %llu is already " 5079 "locked\n"); 5080 mtx_unlock(&lun->lun_lock); 5081 mtx_unlock(&softc->ctl_lock); 5082 return (1); 5083 } 5084#endif 5085 5086 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5087 (page_index->page_len * CTL_PAGE_CURRENT)); 5088 5089 if (lock != 0) { 5090 current_sp->lock_active = APS_LOCK_ACTIVE; 5091 softc->aps_locked_lun = lun->lun; 5092 } else { 5093 current_sp->lock_active = 0; 5094 softc->aps_locked_lun = 0; 5095 } 5096 5097 5098 /* 5099 * If we're in HA mode, try to send the lock message to the other 5100 * side. 5101 */ 5102 if (ctl_is_single == 0) { 5103 int isc_retval; 5104 union ctl_ha_msg lock_msg; 5105 5106 lock_msg.hdr.nexus = *nexus; 5107 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5108 if (lock != 0) 5109 lock_msg.aps.lock_flag = 1; 5110 else 5111 lock_msg.aps.lock_flag = 0; 5112 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5113 sizeof(lock_msg), 0); 5114 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5115 printf("%s: APS (lock=%d) error returned from " 5116 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5117 mtx_unlock(&lun->lun_lock); 5118 mtx_unlock(&softc->ctl_lock); 5119 return (1); 5120 } 5121 } 5122 5123 mtx_unlock(&lun->lun_lock); 5124 mtx_unlock(&softc->ctl_lock); 5125 5126 return (0); 5127} 5128 5129void 5130ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5131{ 5132 struct ctl_lun *lun; 5133 struct ctl_softc *softc; 5134 int i; 5135 5136 softc = control_softc; 5137 5138 lun = (struct ctl_lun *)be_lun->ctl_lun; 5139 5140 mtx_lock(&lun->lun_lock); 5141 5142 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5143 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5144 5145 mtx_unlock(&lun->lun_lock); 5146} 5147 5148/* 5149 * Backend "memory move is complete" callback for requests that never 5150 * make it down to say RAIDCore's configuration code. 5151 */ 5152int 5153ctl_config_move_done(union ctl_io *io) 5154{ 5155 int retval; 5156 5157 retval = CTL_RETVAL_COMPLETE; 5158 5159 5160 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5161 /* 5162 * XXX KDM this shouldn't happen, but what if it does? 5163 */ 5164 if (io->io_hdr.io_type != CTL_IO_SCSI) 5165 panic("I/O type isn't CTL_IO_SCSI!"); 5166 5167 if ((io->io_hdr.port_status == 0) 5168 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5169 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5170 io->io_hdr.status = CTL_SUCCESS; 5171 else if ((io->io_hdr.port_status != 0) 5172 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5173 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5174 /* 5175 * For hardware error sense keys, the sense key 5176 * specific value is defined to be a retry count, 5177 * but we use it to pass back an internal FETD 5178 * error code. XXX KDM Hopefully the FETD is only 5179 * using 16 bits for an error code, since that's 5180 * all the space we have in the sks field. 5181 */ 5182 ctl_set_internal_failure(&io->scsiio, 5183 /*sks_valid*/ 1, 5184 /*retry_count*/ 5185 io->io_hdr.port_status); 5186 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5187 free(io->scsiio.kern_data_ptr, M_CTL); 5188 ctl_done(io); 5189 goto bailout; 5190 } 5191 5192 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5193 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5194 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5195 /* 5196 * XXX KDM just assuming a single pointer here, and not a 5197 * S/G list. If we start using S/G lists for config data, 5198 * we'll need to know how to clean them up here as well. 5199 */ 5200 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5201 free(io->scsiio.kern_data_ptr, M_CTL); 5202 /* Hopefully the user has already set the status... */ 5203 ctl_done(io); 5204 } else { 5205 /* 5206 * XXX KDM now we need to continue data movement. Some 5207 * options: 5208 * - call ctl_scsiio() again? We don't do this for data 5209 * writes, because for those at least we know ahead of 5210 * time where the write will go and how long it is. For 5211 * config writes, though, that information is largely 5212 * contained within the write itself, thus we need to 5213 * parse out the data again. 5214 * 5215 * - Call some other function once the data is in? 5216 */ 5217 5218 /* 5219 * XXX KDM call ctl_scsiio() again for now, and check flag 5220 * bits to see whether we're allocated or not. 5221 */ 5222 retval = ctl_scsiio(&io->scsiio); 5223 } 5224bailout: 5225 return (retval); 5226} 5227 5228/* 5229 * This gets called by a backend driver when it is done with a 5230 * data_submit method. 5231 */ 5232void 5233ctl_data_submit_done(union ctl_io *io) 5234{ 5235 /* 5236 * If the IO_CONT flag is set, we need to call the supplied 5237 * function to continue processing the I/O, instead of completing 5238 * the I/O just yet. 5239 * 5240 * If there is an error, though, we don't want to keep processing. 5241 * Instead, just send status back to the initiator. 5242 */ 5243 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5244 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5245 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5246 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5247 io->scsiio.io_cont(io); 5248 return; 5249 } 5250 ctl_done(io); 5251} 5252 5253/* 5254 * This gets called by a backend driver when it is done with a 5255 * configuration write. 5256 */ 5257void 5258ctl_config_write_done(union ctl_io *io) 5259{ 5260 /* 5261 * If the IO_CONT flag is set, we need to call the supplied 5262 * function to continue processing the I/O, instead of completing 5263 * the I/O just yet. 5264 * 5265 * If there is an error, though, we don't want to keep processing. 5266 * Instead, just send status back to the initiator. 5267 */ 5268 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5269 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5270 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5271 io->scsiio.io_cont(io); 5272 return; 5273 } 5274 /* 5275 * Since a configuration write can be done for commands that actually 5276 * have data allocated, like write buffer, and commands that have 5277 * no data, like start/stop unit, we need to check here. 5278 */ 5279 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5280 free(io->scsiio.kern_data_ptr, M_CTL); 5281 ctl_done(io); 5282} 5283 5284/* 5285 * SCSI release command. 5286 */ 5287int 5288ctl_scsi_release(struct ctl_scsiio *ctsio) 5289{ 5290 int length, longid, thirdparty_id, resv_id; 5291 struct ctl_softc *ctl_softc; 5292 struct ctl_lun *lun; 5293 5294 length = 0; 5295 resv_id = 0; 5296 5297 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5298 5299 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5300 ctl_softc = control_softc; 5301 5302 switch (ctsio->cdb[0]) { 5303 case RELEASE_10: { 5304 struct scsi_release_10 *cdb; 5305 5306 cdb = (struct scsi_release_10 *)ctsio->cdb; 5307 5308 if (cdb->byte2 & SR10_LONGID) 5309 longid = 1; 5310 else 5311 thirdparty_id = cdb->thirdparty_id; 5312 5313 resv_id = cdb->resv_id; 5314 length = scsi_2btoul(cdb->length); 5315 break; 5316 } 5317 } 5318 5319 5320 /* 5321 * XXX KDM right now, we only support LUN reservation. We don't 5322 * support 3rd party reservations, or extent reservations, which 5323 * might actually need the parameter list. If we've gotten this 5324 * far, we've got a LUN reservation. Anything else got kicked out 5325 * above. So, according to SPC, ignore the length. 5326 */ 5327 length = 0; 5328 5329 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5330 && (length > 0)) { 5331 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5332 ctsio->kern_data_len = length; 5333 ctsio->kern_total_len = length; 5334 ctsio->kern_data_resid = 0; 5335 ctsio->kern_rel_offset = 0; 5336 ctsio->kern_sg_entries = 0; 5337 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5338 ctsio->be_move_done = ctl_config_move_done; 5339 ctl_datamove((union ctl_io *)ctsio); 5340 5341 return (CTL_RETVAL_COMPLETE); 5342 } 5343 5344 if (length > 0) 5345 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5346 5347 mtx_lock(&lun->lun_lock); 5348 5349 /* 5350 * According to SPC, it is not an error for an intiator to attempt 5351 * to release a reservation on a LUN that isn't reserved, or that 5352 * is reserved by another initiator. The reservation can only be 5353 * released, though, by the initiator who made it or by one of 5354 * several reset type events. 5355 */ 5356 if (lun->flags & CTL_LUN_RESERVED) { 5357 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5358 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5359 && (ctsio->io_hdr.nexus.targ_target.id == 5360 lun->rsv_nexus.targ_target.id)) { 5361 lun->flags &= ~CTL_LUN_RESERVED; 5362 } 5363 } 5364 5365 mtx_unlock(&lun->lun_lock); 5366 5367 ctsio->scsi_status = SCSI_STATUS_OK; 5368 ctsio->io_hdr.status = CTL_SUCCESS; 5369 5370 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5371 free(ctsio->kern_data_ptr, M_CTL); 5372 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5373 } 5374 5375 ctl_done((union ctl_io *)ctsio); 5376 return (CTL_RETVAL_COMPLETE); 5377} 5378 5379int 5380ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5381{ 5382 int extent, thirdparty, longid; 5383 int resv_id, length; 5384 uint64_t thirdparty_id; 5385 struct ctl_softc *ctl_softc; 5386 struct ctl_lun *lun; 5387 5388 extent = 0; 5389 thirdparty = 0; 5390 longid = 0; 5391 resv_id = 0; 5392 length = 0; 5393 thirdparty_id = 0; 5394 5395 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5396 5397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5398 ctl_softc = control_softc; 5399 5400 switch (ctsio->cdb[0]) { 5401 case RESERVE_10: { 5402 struct scsi_reserve_10 *cdb; 5403 5404 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5405 5406 if (cdb->byte2 & SR10_LONGID) 5407 longid = 1; 5408 else 5409 thirdparty_id = cdb->thirdparty_id; 5410 5411 resv_id = cdb->resv_id; 5412 length = scsi_2btoul(cdb->length); 5413 break; 5414 } 5415 } 5416 5417 /* 5418 * XXX KDM right now, we only support LUN reservation. We don't 5419 * support 3rd party reservations, or extent reservations, which 5420 * might actually need the parameter list. If we've gotten this 5421 * far, we've got a LUN reservation. Anything else got kicked out 5422 * above. So, according to SPC, ignore the length. 5423 */ 5424 length = 0; 5425 5426 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5427 && (length > 0)) { 5428 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5429 ctsio->kern_data_len = length; 5430 ctsio->kern_total_len = length; 5431 ctsio->kern_data_resid = 0; 5432 ctsio->kern_rel_offset = 0; 5433 ctsio->kern_sg_entries = 0; 5434 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5435 ctsio->be_move_done = ctl_config_move_done; 5436 ctl_datamove((union ctl_io *)ctsio); 5437 5438 return (CTL_RETVAL_COMPLETE); 5439 } 5440 5441 if (length > 0) 5442 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5443 5444 mtx_lock(&lun->lun_lock); 5445 if (lun->flags & CTL_LUN_RESERVED) { 5446 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5447 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5448 || (ctsio->io_hdr.nexus.targ_target.id != 5449 lun->rsv_nexus.targ_target.id)) { 5450 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5451 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5452 goto bailout; 5453 } 5454 } 5455 5456 lun->flags |= CTL_LUN_RESERVED; 5457 lun->rsv_nexus = ctsio->io_hdr.nexus; 5458 5459 ctsio->scsi_status = SCSI_STATUS_OK; 5460 ctsio->io_hdr.status = CTL_SUCCESS; 5461 5462bailout: 5463 mtx_unlock(&lun->lun_lock); 5464 5465 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5466 free(ctsio->kern_data_ptr, M_CTL); 5467 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5468 } 5469 5470 ctl_done((union ctl_io *)ctsio); 5471 return (CTL_RETVAL_COMPLETE); 5472} 5473 5474int 5475ctl_start_stop(struct ctl_scsiio *ctsio) 5476{ 5477 struct scsi_start_stop_unit *cdb; 5478 struct ctl_lun *lun; 5479 struct ctl_softc *ctl_softc; 5480 int retval; 5481 5482 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5483 5484 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5485 ctl_softc = control_softc; 5486 retval = 0; 5487 5488 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5489 5490 /* 5491 * XXX KDM 5492 * We don't support the immediate bit on a stop unit. In order to 5493 * do that, we would need to code up a way to know that a stop is 5494 * pending, and hold off any new commands until it completes, one 5495 * way or another. Then we could accept or reject those commands 5496 * depending on its status. We would almost need to do the reverse 5497 * of what we do below for an immediate start -- return the copy of 5498 * the ctl_io to the FETD with status to send to the host (and to 5499 * free the copy!) and then free the original I/O once the stop 5500 * actually completes. That way, the OOA queue mechanism can work 5501 * to block commands that shouldn't proceed. Another alternative 5502 * would be to put the copy in the queue in place of the original, 5503 * and return the original back to the caller. That could be 5504 * slightly safer.. 5505 */ 5506 if ((cdb->byte2 & SSS_IMMED) 5507 && ((cdb->how & SSS_START) == 0)) { 5508 ctl_set_invalid_field(ctsio, 5509 /*sks_valid*/ 1, 5510 /*command*/ 1, 5511 /*field*/ 1, 5512 /*bit_valid*/ 1, 5513 /*bit*/ 0); 5514 ctl_done((union ctl_io *)ctsio); 5515 return (CTL_RETVAL_COMPLETE); 5516 } 5517 5518 if ((lun->flags & CTL_LUN_PR_RESERVED) 5519 && ((cdb->how & SSS_START)==0)) { 5520 uint32_t residx; 5521 5522 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5523 if (!lun->per_res[residx].registered 5524 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5525 5526 ctl_set_reservation_conflict(ctsio); 5527 ctl_done((union ctl_io *)ctsio); 5528 return (CTL_RETVAL_COMPLETE); 5529 } 5530 } 5531 5532 /* 5533 * If there is no backend on this device, we can't start or stop 5534 * it. In theory we shouldn't get any start/stop commands in the 5535 * first place at this level if the LUN doesn't have a backend. 5536 * That should get stopped by the command decode code. 5537 */ 5538 if (lun->backend == NULL) { 5539 ctl_set_invalid_opcode(ctsio); 5540 ctl_done((union ctl_io *)ctsio); 5541 return (CTL_RETVAL_COMPLETE); 5542 } 5543 5544 /* 5545 * XXX KDM Copan-specific offline behavior. 5546 * Figure out a reasonable way to port this? 5547 */ 5548#ifdef NEEDTOPORT 5549 mtx_lock(&lun->lun_lock); 5550 5551 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5552 && (lun->flags & CTL_LUN_OFFLINE)) { 5553 /* 5554 * If the LUN is offline, and the on/offline bit isn't set, 5555 * reject the start or stop. Otherwise, let it through. 5556 */ 5557 mtx_unlock(&lun->lun_lock); 5558 ctl_set_lun_not_ready(ctsio); 5559 ctl_done((union ctl_io *)ctsio); 5560 } else { 5561 mtx_unlock(&lun->lun_lock); 5562#endif /* NEEDTOPORT */ 5563 /* 5564 * This could be a start or a stop when we're online, 5565 * or a stop/offline or start/online. A start or stop when 5566 * we're offline is covered in the case above. 5567 */ 5568 /* 5569 * In the non-immediate case, we send the request to 5570 * the backend and return status to the user when 5571 * it is done. 5572 * 5573 * In the immediate case, we allocate a new ctl_io 5574 * to hold a copy of the request, and send that to 5575 * the backend. We then set good status on the 5576 * user's request and return it immediately. 5577 */ 5578 if (cdb->byte2 & SSS_IMMED) { 5579 union ctl_io *new_io; 5580 5581 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5582 if (new_io == NULL) { 5583 ctl_set_busy(ctsio); 5584 ctl_done((union ctl_io *)ctsio); 5585 } else { 5586 ctl_copy_io((union ctl_io *)ctsio, 5587 new_io); 5588 retval = lun->backend->config_write(new_io); 5589 ctl_set_success(ctsio); 5590 ctl_done((union ctl_io *)ctsio); 5591 } 5592 } else { 5593 retval = lun->backend->config_write( 5594 (union ctl_io *)ctsio); 5595 } 5596#ifdef NEEDTOPORT 5597 } 5598#endif 5599 return (retval); 5600} 5601 5602/* 5603 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5604 * we don't really do anything with the LBA and length fields if the user 5605 * passes them in. Instead we'll just flush out the cache for the entire 5606 * LUN. 5607 */ 5608int 5609ctl_sync_cache(struct ctl_scsiio *ctsio) 5610{ 5611 struct ctl_lun *lun; 5612 struct ctl_softc *ctl_softc; 5613 uint64_t starting_lba; 5614 uint32_t block_count; 5615 int retval; 5616 5617 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5618 5619 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5620 ctl_softc = control_softc; 5621 retval = 0; 5622 5623 switch (ctsio->cdb[0]) { 5624 case SYNCHRONIZE_CACHE: { 5625 struct scsi_sync_cache *cdb; 5626 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5627 5628 starting_lba = scsi_4btoul(cdb->begin_lba); 5629 block_count = scsi_2btoul(cdb->lb_count); 5630 break; 5631 } 5632 case SYNCHRONIZE_CACHE_16: { 5633 struct scsi_sync_cache_16 *cdb; 5634 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5635 5636 starting_lba = scsi_8btou64(cdb->begin_lba); 5637 block_count = scsi_4btoul(cdb->lb_count); 5638 break; 5639 } 5640 default: 5641 ctl_set_invalid_opcode(ctsio); 5642 ctl_done((union ctl_io *)ctsio); 5643 goto bailout; 5644 break; /* NOTREACHED */ 5645 } 5646 5647 /* 5648 * We check the LBA and length, but don't do anything with them. 5649 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5650 * get flushed. This check will just help satisfy anyone who wants 5651 * to see an error for an out of range LBA. 5652 */ 5653 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5654 ctl_set_lba_out_of_range(ctsio); 5655 ctl_done((union ctl_io *)ctsio); 5656 goto bailout; 5657 } 5658 5659 /* 5660 * If this LUN has no backend, we can't flush the cache anyway. 5661 */ 5662 if (lun->backend == NULL) { 5663 ctl_set_invalid_opcode(ctsio); 5664 ctl_done((union ctl_io *)ctsio); 5665 goto bailout; 5666 } 5667 5668 /* 5669 * Check to see whether we're configured to send the SYNCHRONIZE 5670 * CACHE command directly to the back end. 5671 */ 5672 mtx_lock(&lun->lun_lock); 5673 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5674 && (++(lun->sync_count) >= lun->sync_interval)) { 5675 lun->sync_count = 0; 5676 mtx_unlock(&lun->lun_lock); 5677 retval = lun->backend->config_write((union ctl_io *)ctsio); 5678 } else { 5679 mtx_unlock(&lun->lun_lock); 5680 ctl_set_success(ctsio); 5681 ctl_done((union ctl_io *)ctsio); 5682 } 5683 5684bailout: 5685 5686 return (retval); 5687} 5688 5689int 5690ctl_format(struct ctl_scsiio *ctsio) 5691{ 5692 struct scsi_format *cdb; 5693 struct ctl_lun *lun; 5694 struct ctl_softc *ctl_softc; 5695 int length, defect_list_len; 5696 5697 CTL_DEBUG_PRINT(("ctl_format\n")); 5698 5699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5700 ctl_softc = control_softc; 5701 5702 cdb = (struct scsi_format *)ctsio->cdb; 5703 5704 length = 0; 5705 if (cdb->byte2 & SF_FMTDATA) { 5706 if (cdb->byte2 & SF_LONGLIST) 5707 length = sizeof(struct scsi_format_header_long); 5708 else 5709 length = sizeof(struct scsi_format_header_short); 5710 } 5711 5712 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5713 && (length > 0)) { 5714 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5715 ctsio->kern_data_len = length; 5716 ctsio->kern_total_len = length; 5717 ctsio->kern_data_resid = 0; 5718 ctsio->kern_rel_offset = 0; 5719 ctsio->kern_sg_entries = 0; 5720 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5721 ctsio->be_move_done = ctl_config_move_done; 5722 ctl_datamove((union ctl_io *)ctsio); 5723 5724 return (CTL_RETVAL_COMPLETE); 5725 } 5726 5727 defect_list_len = 0; 5728 5729 if (cdb->byte2 & SF_FMTDATA) { 5730 if (cdb->byte2 & SF_LONGLIST) { 5731 struct scsi_format_header_long *header; 5732 5733 header = (struct scsi_format_header_long *) 5734 ctsio->kern_data_ptr; 5735 5736 defect_list_len = scsi_4btoul(header->defect_list_len); 5737 if (defect_list_len != 0) { 5738 ctl_set_invalid_field(ctsio, 5739 /*sks_valid*/ 1, 5740 /*command*/ 0, 5741 /*field*/ 2, 5742 /*bit_valid*/ 0, 5743 /*bit*/ 0); 5744 goto bailout; 5745 } 5746 } else { 5747 struct scsi_format_header_short *header; 5748 5749 header = (struct scsi_format_header_short *) 5750 ctsio->kern_data_ptr; 5751 5752 defect_list_len = scsi_2btoul(header->defect_list_len); 5753 if (defect_list_len != 0) { 5754 ctl_set_invalid_field(ctsio, 5755 /*sks_valid*/ 1, 5756 /*command*/ 0, 5757 /*field*/ 2, 5758 /*bit_valid*/ 0, 5759 /*bit*/ 0); 5760 goto bailout; 5761 } 5762 } 5763 } 5764 5765 /* 5766 * The format command will clear out the "Medium format corrupted" 5767 * status if set by the configuration code. That status is really 5768 * just a way to notify the host that we have lost the media, and 5769 * get them to issue a command that will basically make them think 5770 * they're blowing away the media. 5771 */ 5772 mtx_lock(&lun->lun_lock); 5773 lun->flags &= ~CTL_LUN_INOPERABLE; 5774 mtx_unlock(&lun->lun_lock); 5775 5776 ctsio->scsi_status = SCSI_STATUS_OK; 5777 ctsio->io_hdr.status = CTL_SUCCESS; 5778bailout: 5779 5780 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5781 free(ctsio->kern_data_ptr, M_CTL); 5782 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5783 } 5784 5785 ctl_done((union ctl_io *)ctsio); 5786 return (CTL_RETVAL_COMPLETE); 5787} 5788 5789int 5790ctl_read_buffer(struct ctl_scsiio *ctsio) 5791{ 5792 struct scsi_read_buffer *cdb; 5793 struct ctl_lun *lun; 5794 int buffer_offset, len; 5795 static uint8_t descr[4]; 5796 static uint8_t echo_descr[4] = { 0 }; 5797 5798 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5799 5800 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5801 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5802 5803 if (lun->flags & CTL_LUN_PR_RESERVED) { 5804 uint32_t residx; 5805 5806 /* 5807 * XXX KDM need a lock here. 5808 */ 5809 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5810 if ((lun->res_type == SPR_TYPE_EX_AC 5811 && residx != lun->pr_res_idx) 5812 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5813 || lun->res_type == SPR_TYPE_EX_AC_AR) 5814 && !lun->per_res[residx].registered)) { 5815 ctl_set_reservation_conflict(ctsio); 5816 ctl_done((union ctl_io *)ctsio); 5817 return (CTL_RETVAL_COMPLETE); 5818 } 5819 } 5820 5821 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5822 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5823 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5824 ctl_set_invalid_field(ctsio, 5825 /*sks_valid*/ 1, 5826 /*command*/ 1, 5827 /*field*/ 1, 5828 /*bit_valid*/ 1, 5829 /*bit*/ 4); 5830 ctl_done((union ctl_io *)ctsio); 5831 return (CTL_RETVAL_COMPLETE); 5832 } 5833 5834 len = scsi_3btoul(cdb->length); 5835 buffer_offset = scsi_3btoul(cdb->offset); 5836 5837 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5838 ctl_set_invalid_field(ctsio, 5839 /*sks_valid*/ 1, 5840 /*command*/ 1, 5841 /*field*/ 6, 5842 /*bit_valid*/ 0, 5843 /*bit*/ 0); 5844 ctl_done((union ctl_io *)ctsio); 5845 return (CTL_RETVAL_COMPLETE); 5846 } 5847 5848 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5849 descr[0] = 0; 5850 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5851 ctsio->kern_data_ptr = descr; 5852 len = min(len, sizeof(descr)); 5853 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5854 ctsio->kern_data_ptr = echo_descr; 5855 len = min(len, sizeof(echo_descr)); 5856 } else 5857 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5858 ctsio->kern_data_len = len; 5859 ctsio->kern_total_len = len; 5860 ctsio->kern_data_resid = 0; 5861 ctsio->kern_rel_offset = 0; 5862 ctsio->kern_sg_entries = 0; 5863 ctsio->be_move_done = ctl_config_move_done; 5864 ctl_datamove((union ctl_io *)ctsio); 5865 5866 return (CTL_RETVAL_COMPLETE); 5867} 5868 5869int 5870ctl_write_buffer(struct ctl_scsiio *ctsio) 5871{ 5872 struct scsi_write_buffer *cdb; 5873 struct ctl_lun *lun; 5874 int buffer_offset, len; 5875 5876 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5877 5878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5879 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5880 5881 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5882 ctl_set_invalid_field(ctsio, 5883 /*sks_valid*/ 1, 5884 /*command*/ 1, 5885 /*field*/ 1, 5886 /*bit_valid*/ 1, 5887 /*bit*/ 4); 5888 ctl_done((union ctl_io *)ctsio); 5889 return (CTL_RETVAL_COMPLETE); 5890 } 5891 5892 len = scsi_3btoul(cdb->length); 5893 buffer_offset = scsi_3btoul(cdb->offset); 5894 5895 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5896 ctl_set_invalid_field(ctsio, 5897 /*sks_valid*/ 1, 5898 /*command*/ 1, 5899 /*field*/ 6, 5900 /*bit_valid*/ 0, 5901 /*bit*/ 0); 5902 ctl_done((union ctl_io *)ctsio); 5903 return (CTL_RETVAL_COMPLETE); 5904 } 5905 5906 /* 5907 * If we've got a kernel request that hasn't been malloced yet, 5908 * malloc it and tell the caller the data buffer is here. 5909 */ 5910 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5911 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5912 ctsio->kern_data_len = len; 5913 ctsio->kern_total_len = len; 5914 ctsio->kern_data_resid = 0; 5915 ctsio->kern_rel_offset = 0; 5916 ctsio->kern_sg_entries = 0; 5917 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5918 ctsio->be_move_done = ctl_config_move_done; 5919 ctl_datamove((union ctl_io *)ctsio); 5920 5921 return (CTL_RETVAL_COMPLETE); 5922 } 5923 5924 ctl_done((union ctl_io *)ctsio); 5925 5926 return (CTL_RETVAL_COMPLETE); 5927} 5928 5929int 5930ctl_write_same(struct ctl_scsiio *ctsio) 5931{ 5932 struct ctl_lun *lun; 5933 struct ctl_lba_len_flags *lbalen; 5934 uint64_t lba; 5935 uint32_t num_blocks; 5936 int len, retval; 5937 uint8_t byte2; 5938 5939 retval = CTL_RETVAL_COMPLETE; 5940 5941 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5942 5943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5944 5945 switch (ctsio->cdb[0]) { 5946 case WRITE_SAME_10: { 5947 struct scsi_write_same_10 *cdb; 5948 5949 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5950 5951 lba = scsi_4btoul(cdb->addr); 5952 num_blocks = scsi_2btoul(cdb->length); 5953 byte2 = cdb->byte2; 5954 break; 5955 } 5956 case WRITE_SAME_16: { 5957 struct scsi_write_same_16 *cdb; 5958 5959 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5960 5961 lba = scsi_8btou64(cdb->addr); 5962 num_blocks = scsi_4btoul(cdb->length); 5963 byte2 = cdb->byte2; 5964 break; 5965 } 5966 default: 5967 /* 5968 * We got a command we don't support. This shouldn't 5969 * happen, commands should be filtered out above us. 5970 */ 5971 ctl_set_invalid_opcode(ctsio); 5972 ctl_done((union ctl_io *)ctsio); 5973 5974 return (CTL_RETVAL_COMPLETE); 5975 break; /* NOTREACHED */ 5976 } 5977 5978 /* 5979 * The first check is to make sure we're in bounds, the second 5980 * check is to catch wrap-around problems. If the lba + num blocks 5981 * is less than the lba, then we've wrapped around and the block 5982 * range is invalid anyway. 5983 */ 5984 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5985 || ((lba + num_blocks) < lba)) { 5986 ctl_set_lba_out_of_range(ctsio); 5987 ctl_done((union ctl_io *)ctsio); 5988 return (CTL_RETVAL_COMPLETE); 5989 } 5990 5991 /* Zero number of blocks means "to the last logical block" */ 5992 if (num_blocks == 0) { 5993 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5994 ctl_set_invalid_field(ctsio, 5995 /*sks_valid*/ 0, 5996 /*command*/ 1, 5997 /*field*/ 0, 5998 /*bit_valid*/ 0, 5999 /*bit*/ 0); 6000 ctl_done((union ctl_io *)ctsio); 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6004 } 6005 6006 len = lun->be_lun->blocksize; 6007 6008 /* 6009 * If we've got a kernel request that hasn't been malloced yet, 6010 * malloc it and tell the caller the data buffer is here. 6011 */ 6012 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6013 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6014 ctsio->kern_data_len = len; 6015 ctsio->kern_total_len = len; 6016 ctsio->kern_data_resid = 0; 6017 ctsio->kern_rel_offset = 0; 6018 ctsio->kern_sg_entries = 0; 6019 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6020 ctsio->be_move_done = ctl_config_move_done; 6021 ctl_datamove((union ctl_io *)ctsio); 6022 6023 return (CTL_RETVAL_COMPLETE); 6024 } 6025 6026 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6027 lbalen->lba = lba; 6028 lbalen->len = num_blocks; 6029 lbalen->flags = byte2; 6030 retval = lun->backend->config_write((union ctl_io *)ctsio); 6031 6032 return (retval); 6033} 6034 6035int 6036ctl_unmap(struct ctl_scsiio *ctsio) 6037{ 6038 struct ctl_lun *lun; 6039 struct scsi_unmap *cdb; 6040 struct ctl_ptr_len_flags *ptrlen; 6041 struct scsi_unmap_header *hdr; 6042 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6043 uint64_t lba; 6044 uint32_t num_blocks; 6045 int len, retval; 6046 uint8_t byte2; 6047 6048 retval = CTL_RETVAL_COMPLETE; 6049 6050 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6051 6052 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6053 cdb = (struct scsi_unmap *)ctsio->cdb; 6054 6055 len = scsi_2btoul(cdb->length); 6056 byte2 = cdb->byte2; 6057 6058 /* 6059 * If we've got a kernel request that hasn't been malloced yet, 6060 * malloc it and tell the caller the data buffer is here. 6061 */ 6062 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6063 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6064 ctsio->kern_data_len = len; 6065 ctsio->kern_total_len = len; 6066 ctsio->kern_data_resid = 0; 6067 ctsio->kern_rel_offset = 0; 6068 ctsio->kern_sg_entries = 0; 6069 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6070 ctsio->be_move_done = ctl_config_move_done; 6071 ctl_datamove((union ctl_io *)ctsio); 6072 6073 return (CTL_RETVAL_COMPLETE); 6074 } 6075 6076 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6077 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6078 if (len < sizeof (*hdr) || 6079 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6080 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6081 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6082 ctl_set_invalid_field(ctsio, 6083 /*sks_valid*/ 0, 6084 /*command*/ 0, 6085 /*field*/ 0, 6086 /*bit_valid*/ 0, 6087 /*bit*/ 0); 6088 ctl_done((union ctl_io *)ctsio); 6089 return (CTL_RETVAL_COMPLETE); 6090 } 6091 len = scsi_2btoul(hdr->desc_length); 6092 buf = (struct scsi_unmap_desc *)(hdr + 1); 6093 end = buf + len / sizeof(*buf); 6094 6095 endnz = buf; 6096 for (range = buf; range < end; range++) { 6097 lba = scsi_8btou64(range->lba); 6098 num_blocks = scsi_4btoul(range->length); 6099 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6100 || ((lba + num_blocks) < lba)) { 6101 ctl_set_lba_out_of_range(ctsio); 6102 ctl_done((union ctl_io *)ctsio); 6103 return (CTL_RETVAL_COMPLETE); 6104 } 6105 if (num_blocks != 0) 6106 endnz = range + 1; 6107 } 6108 6109 /* 6110 * Block backend can not handle zero last range. 6111 * Filter it out and return if there is nothing left. 6112 */ 6113 len = (uint8_t *)endnz - (uint8_t *)buf; 6114 if (len == 0) { 6115 ctl_set_success(ctsio); 6116 ctl_done((union ctl_io *)ctsio); 6117 return (CTL_RETVAL_COMPLETE); 6118 } 6119 6120 ptrlen = (struct ctl_ptr_len_flags *) 6121 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6122 ptrlen->ptr = (void *)buf; 6123 ptrlen->len = len; 6124 ptrlen->flags = byte2; 6125 6126 retval = lun->backend->config_write((union ctl_io *)ctsio); 6127 return (retval); 6128} 6129 6130/* 6131 * Note that this function currently doesn't actually do anything inside 6132 * CTL to enforce things if the DQue bit is turned on. 6133 * 6134 * Also note that this function can't be used in the default case, because 6135 * the DQue bit isn't set in the changeable mask for the control mode page 6136 * anyway. This is just here as an example for how to implement a page 6137 * handler, and a placeholder in case we want to allow the user to turn 6138 * tagged queueing on and off. 6139 * 6140 * The D_SENSE bit handling is functional, however, and will turn 6141 * descriptor sense on and off for a given LUN. 6142 */ 6143int 6144ctl_control_page_handler(struct ctl_scsiio *ctsio, 6145 struct ctl_page_index *page_index, uint8_t *page_ptr) 6146{ 6147 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6148 struct ctl_lun *lun; 6149 struct ctl_softc *softc; 6150 int set_ua; 6151 uint32_t initidx; 6152 6153 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6154 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6155 set_ua = 0; 6156 6157 user_cp = (struct scsi_control_page *)page_ptr; 6158 current_cp = (struct scsi_control_page *) 6159 (page_index->page_data + (page_index->page_len * 6160 CTL_PAGE_CURRENT)); 6161 saved_cp = (struct scsi_control_page *) 6162 (page_index->page_data + (page_index->page_len * 6163 CTL_PAGE_SAVED)); 6164 6165 softc = control_softc; 6166 6167 mtx_lock(&lun->lun_lock); 6168 if (((current_cp->rlec & SCP_DSENSE) == 0) 6169 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6170 /* 6171 * Descriptor sense is currently turned off and the user 6172 * wants to turn it on. 6173 */ 6174 current_cp->rlec |= SCP_DSENSE; 6175 saved_cp->rlec |= SCP_DSENSE; 6176 lun->flags |= CTL_LUN_SENSE_DESC; 6177 set_ua = 1; 6178 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6179 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6180 /* 6181 * Descriptor sense is currently turned on, and the user 6182 * wants to turn it off. 6183 */ 6184 current_cp->rlec &= ~SCP_DSENSE; 6185 saved_cp->rlec &= ~SCP_DSENSE; 6186 lun->flags &= ~CTL_LUN_SENSE_DESC; 6187 set_ua = 1; 6188 } 6189 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6190 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6191#ifdef NEEDTOPORT 6192 csevent_log(CSC_CTL | CSC_SHELF_SW | 6193 CTL_UNTAG_TO_UNTAG, 6194 csevent_LogType_Trace, 6195 csevent_Severity_Information, 6196 csevent_AlertLevel_Green, 6197 csevent_FRU_Firmware, 6198 csevent_FRU_Unknown, 6199 "Received untagged to untagged transition"); 6200#endif /* NEEDTOPORT */ 6201 } else { 6202#ifdef NEEDTOPORT 6203 csevent_log(CSC_CTL | CSC_SHELF_SW | 6204 CTL_UNTAG_TO_TAG, 6205 csevent_LogType_ConfigChange, 6206 csevent_Severity_Information, 6207 csevent_AlertLevel_Green, 6208 csevent_FRU_Firmware, 6209 csevent_FRU_Unknown, 6210 "Received untagged to tagged " 6211 "queueing transition"); 6212#endif /* NEEDTOPORT */ 6213 6214 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6215 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6216 set_ua = 1; 6217 } 6218 } else { 6219 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6220#ifdef NEEDTOPORT 6221 csevent_log(CSC_CTL | CSC_SHELF_SW | 6222 CTL_TAG_TO_UNTAG, 6223 csevent_LogType_ConfigChange, 6224 csevent_Severity_Warning, 6225 csevent_AlertLevel_Yellow, 6226 csevent_FRU_Firmware, 6227 csevent_FRU_Unknown, 6228 "Received tagged queueing to untagged " 6229 "transition"); 6230#endif /* NEEDTOPORT */ 6231 6232 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6233 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6234 set_ua = 1; 6235 } else { 6236#ifdef NEEDTOPORT 6237 csevent_log(CSC_CTL | CSC_SHELF_SW | 6238 CTL_TAG_TO_TAG, 6239 csevent_LogType_Trace, 6240 csevent_Severity_Information, 6241 csevent_AlertLevel_Green, 6242 csevent_FRU_Firmware, 6243 csevent_FRU_Unknown, 6244 "Received tagged queueing to tagged " 6245 "queueing transition"); 6246#endif /* NEEDTOPORT */ 6247 } 6248 } 6249 if (set_ua != 0) { 6250 int i; 6251 /* 6252 * Let other initiators know that the mode 6253 * parameters for this LUN have changed. 6254 */ 6255 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6256 if (i == initidx) 6257 continue; 6258 6259 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6260 } 6261 } 6262 mtx_unlock(&lun->lun_lock); 6263 6264 return (0); 6265} 6266 6267int 6268ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6269 struct ctl_page_index *page_index, uint8_t *page_ptr) 6270{ 6271 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6272 struct ctl_lun *lun; 6273 int set_ua; 6274 uint32_t initidx; 6275 6276 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6277 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6278 set_ua = 0; 6279 6280 user_cp = (struct scsi_caching_page *)page_ptr; 6281 current_cp = (struct scsi_caching_page *) 6282 (page_index->page_data + (page_index->page_len * 6283 CTL_PAGE_CURRENT)); 6284 saved_cp = (struct scsi_caching_page *) 6285 (page_index->page_data + (page_index->page_len * 6286 CTL_PAGE_SAVED)); 6287 6288 mtx_lock(&lun->lun_lock); 6289 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6290 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) 6291 set_ua = 1; 6292 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6293 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6294 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6295 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6296 if (set_ua != 0) { 6297 int i; 6298 /* 6299 * Let other initiators know that the mode 6300 * parameters for this LUN have changed. 6301 */ 6302 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6303 if (i == initidx) 6304 continue; 6305 6306 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6307 } 6308 } 6309 mtx_unlock(&lun->lun_lock); 6310 6311 return (0); 6312} 6313 6314int 6315ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6316 struct ctl_page_index *page_index, uint8_t *page_ptr) 6317{ 6318 return (0); 6319} 6320 6321int 6322ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6323 struct ctl_page_index *page_index, int pc) 6324{ 6325 struct copan_power_subpage *page; 6326 6327 page = (struct copan_power_subpage *)page_index->page_data + 6328 (page_index->page_len * pc); 6329 6330 switch (pc) { 6331 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6332 /* 6333 * We don't update the changable bits for this page. 6334 */ 6335 break; 6336 case SMS_PAGE_CTRL_CURRENT >> 6: 6337 case SMS_PAGE_CTRL_DEFAULT >> 6: 6338 case SMS_PAGE_CTRL_SAVED >> 6: 6339#ifdef NEEDTOPORT 6340 ctl_update_power_subpage(page); 6341#endif 6342 break; 6343 default: 6344#ifdef NEEDTOPORT 6345 EPRINT(0, "Invalid PC %d!!", pc); 6346#endif 6347 break; 6348 } 6349 return (0); 6350} 6351 6352 6353int 6354ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6355 struct ctl_page_index *page_index, uint8_t *page_ptr) 6356{ 6357 struct copan_aps_subpage *user_sp; 6358 struct copan_aps_subpage *current_sp; 6359 union ctl_modepage_info *modepage_info; 6360 struct ctl_softc *softc; 6361 struct ctl_lun *lun; 6362 int retval; 6363 6364 retval = CTL_RETVAL_COMPLETE; 6365 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6366 (page_index->page_len * CTL_PAGE_CURRENT)); 6367 softc = control_softc; 6368 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6369 6370 user_sp = (struct copan_aps_subpage *)page_ptr; 6371 6372 modepage_info = (union ctl_modepage_info *) 6373 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6374 6375 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6376 modepage_info->header.subpage = page_index->subpage; 6377 modepage_info->aps.lock_active = user_sp->lock_active; 6378 6379 mtx_lock(&softc->ctl_lock); 6380 6381 /* 6382 * If there is a request to lock the LUN and another LUN is locked 6383 * this is an error. If the requested LUN is already locked ignore 6384 * the request. If no LUN is locked attempt to lock it. 6385 * if there is a request to unlock the LUN and the LUN is currently 6386 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6387 * if another LUN is locked or no LUN is locked. 6388 */ 6389 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6390 if (softc->aps_locked_lun == lun->lun) { 6391 /* 6392 * This LUN is already locked, so we're done. 6393 */ 6394 retval = CTL_RETVAL_COMPLETE; 6395 } else if (softc->aps_locked_lun == 0) { 6396 /* 6397 * No one has the lock, pass the request to the 6398 * backend. 6399 */ 6400 retval = lun->backend->config_write( 6401 (union ctl_io *)ctsio); 6402 } else { 6403 /* 6404 * Someone else has the lock, throw out the request. 6405 */ 6406 ctl_set_already_locked(ctsio); 6407 free(ctsio->kern_data_ptr, M_CTL); 6408 ctl_done((union ctl_io *)ctsio); 6409 6410 /* 6411 * Set the return value so that ctl_do_mode_select() 6412 * won't try to complete the command. We already 6413 * completed it here. 6414 */ 6415 retval = CTL_RETVAL_ERROR; 6416 } 6417 } else if (softc->aps_locked_lun == lun->lun) { 6418 /* 6419 * This LUN is locked, so pass the unlock request to the 6420 * backend. 6421 */ 6422 retval = lun->backend->config_write((union ctl_io *)ctsio); 6423 } 6424 mtx_unlock(&softc->ctl_lock); 6425 6426 return (retval); 6427} 6428 6429int 6430ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6431 struct ctl_page_index *page_index, 6432 uint8_t *page_ptr) 6433{ 6434 uint8_t *c; 6435 int i; 6436 6437 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6438 ctl_time_io_secs = 6439 (c[0] << 8) | 6440 (c[1] << 0) | 6441 0; 6442 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6443 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6444 printf("page data:"); 6445 for (i=0; i<8; i++) 6446 printf(" %.2x",page_ptr[i]); 6447 printf("\n"); 6448 return (0); 6449} 6450 6451int 6452ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6453 struct ctl_page_index *page_index, 6454 int pc) 6455{ 6456 struct copan_debugconf_subpage *page; 6457 6458 page = (struct copan_debugconf_subpage *)page_index->page_data + 6459 (page_index->page_len * pc); 6460 6461 switch (pc) { 6462 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6463 case SMS_PAGE_CTRL_DEFAULT >> 6: 6464 case SMS_PAGE_CTRL_SAVED >> 6: 6465 /* 6466 * We don't update the changable or default bits for this page. 6467 */ 6468 break; 6469 case SMS_PAGE_CTRL_CURRENT >> 6: 6470 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6471 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6472 break; 6473 default: 6474#ifdef NEEDTOPORT 6475 EPRINT(0, "Invalid PC %d!!", pc); 6476#endif /* NEEDTOPORT */ 6477 break; 6478 } 6479 return (0); 6480} 6481 6482 6483static int 6484ctl_do_mode_select(union ctl_io *io) 6485{ 6486 struct scsi_mode_page_header *page_header; 6487 struct ctl_page_index *page_index; 6488 struct ctl_scsiio *ctsio; 6489 int control_dev, page_len; 6490 int page_len_offset, page_len_size; 6491 union ctl_modepage_info *modepage_info; 6492 struct ctl_lun *lun; 6493 int *len_left, *len_used; 6494 int retval, i; 6495 6496 ctsio = &io->scsiio; 6497 page_index = NULL; 6498 page_len = 0; 6499 retval = CTL_RETVAL_COMPLETE; 6500 6501 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6502 6503 if (lun->be_lun->lun_type != T_DIRECT) 6504 control_dev = 1; 6505 else 6506 control_dev = 0; 6507 6508 modepage_info = (union ctl_modepage_info *) 6509 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6510 len_left = &modepage_info->header.len_left; 6511 len_used = &modepage_info->header.len_used; 6512 6513do_next_page: 6514 6515 page_header = (struct scsi_mode_page_header *) 6516 (ctsio->kern_data_ptr + *len_used); 6517 6518 if (*len_left == 0) { 6519 free(ctsio->kern_data_ptr, M_CTL); 6520 ctl_set_success(ctsio); 6521 ctl_done((union ctl_io *)ctsio); 6522 return (CTL_RETVAL_COMPLETE); 6523 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6524 6525 free(ctsio->kern_data_ptr, M_CTL); 6526 ctl_set_param_len_error(ctsio); 6527 ctl_done((union ctl_io *)ctsio); 6528 return (CTL_RETVAL_COMPLETE); 6529 6530 } else if ((page_header->page_code & SMPH_SPF) 6531 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6532 6533 free(ctsio->kern_data_ptr, M_CTL); 6534 ctl_set_param_len_error(ctsio); 6535 ctl_done((union ctl_io *)ctsio); 6536 return (CTL_RETVAL_COMPLETE); 6537 } 6538 6539 6540 /* 6541 * XXX KDM should we do something with the block descriptor? 6542 */ 6543 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6544 6545 if ((control_dev != 0) 6546 && (lun->mode_pages.index[i].page_flags & 6547 CTL_PAGE_FLAG_DISK_ONLY)) 6548 continue; 6549 6550 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6551 (page_header->page_code & SMPH_PC_MASK)) 6552 continue; 6553 6554 /* 6555 * If neither page has a subpage code, then we've got a 6556 * match. 6557 */ 6558 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6559 && ((page_header->page_code & SMPH_SPF) == 0)) { 6560 page_index = &lun->mode_pages.index[i]; 6561 page_len = page_header->page_length; 6562 break; 6563 } 6564 6565 /* 6566 * If both pages have subpages, then the subpage numbers 6567 * have to match. 6568 */ 6569 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6570 && (page_header->page_code & SMPH_SPF)) { 6571 struct scsi_mode_page_header_sp *sph; 6572 6573 sph = (struct scsi_mode_page_header_sp *)page_header; 6574 6575 if (lun->mode_pages.index[i].subpage == 6576 sph->subpage) { 6577 page_index = &lun->mode_pages.index[i]; 6578 page_len = scsi_2btoul(sph->page_length); 6579 break; 6580 } 6581 } 6582 } 6583 6584 /* 6585 * If we couldn't find the page, or if we don't have a mode select 6586 * handler for it, send back an error to the user. 6587 */ 6588 if ((page_index == NULL) 6589 || (page_index->select_handler == NULL)) { 6590 ctl_set_invalid_field(ctsio, 6591 /*sks_valid*/ 1, 6592 /*command*/ 0, 6593 /*field*/ *len_used, 6594 /*bit_valid*/ 0, 6595 /*bit*/ 0); 6596 free(ctsio->kern_data_ptr, M_CTL); 6597 ctl_done((union ctl_io *)ctsio); 6598 return (CTL_RETVAL_COMPLETE); 6599 } 6600 6601 if (page_index->page_code & SMPH_SPF) { 6602 page_len_offset = 2; 6603 page_len_size = 2; 6604 } else { 6605 page_len_size = 1; 6606 page_len_offset = 1; 6607 } 6608 6609 /* 6610 * If the length the initiator gives us isn't the one we specify in 6611 * the mode page header, or if they didn't specify enough data in 6612 * the CDB to avoid truncating this page, kick out the request. 6613 */ 6614 if ((page_len != (page_index->page_len - page_len_offset - 6615 page_len_size)) 6616 || (*len_left < page_index->page_len)) { 6617 6618 6619 ctl_set_invalid_field(ctsio, 6620 /*sks_valid*/ 1, 6621 /*command*/ 0, 6622 /*field*/ *len_used + page_len_offset, 6623 /*bit_valid*/ 0, 6624 /*bit*/ 0); 6625 free(ctsio->kern_data_ptr, M_CTL); 6626 ctl_done((union ctl_io *)ctsio); 6627 return (CTL_RETVAL_COMPLETE); 6628 } 6629 6630 /* 6631 * Run through the mode page, checking to make sure that the bits 6632 * the user changed are actually legal for him to change. 6633 */ 6634 for (i = 0; i < page_index->page_len; i++) { 6635 uint8_t *user_byte, *change_mask, *current_byte; 6636 int bad_bit; 6637 int j; 6638 6639 user_byte = (uint8_t *)page_header + i; 6640 change_mask = page_index->page_data + 6641 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6642 current_byte = page_index->page_data + 6643 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6644 6645 /* 6646 * Check to see whether the user set any bits in this byte 6647 * that he is not allowed to set. 6648 */ 6649 if ((*user_byte & ~(*change_mask)) == 6650 (*current_byte & ~(*change_mask))) 6651 continue; 6652 6653 /* 6654 * Go through bit by bit to determine which one is illegal. 6655 */ 6656 bad_bit = 0; 6657 for (j = 7; j >= 0; j--) { 6658 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6659 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6660 bad_bit = i; 6661 break; 6662 } 6663 } 6664 ctl_set_invalid_field(ctsio, 6665 /*sks_valid*/ 1, 6666 /*command*/ 0, 6667 /*field*/ *len_used + i, 6668 /*bit_valid*/ 1, 6669 /*bit*/ bad_bit); 6670 free(ctsio->kern_data_ptr, M_CTL); 6671 ctl_done((union ctl_io *)ctsio); 6672 return (CTL_RETVAL_COMPLETE); 6673 } 6674 6675 /* 6676 * Decrement these before we call the page handler, since we may 6677 * end up getting called back one way or another before the handler 6678 * returns to this context. 6679 */ 6680 *len_left -= page_index->page_len; 6681 *len_used += page_index->page_len; 6682 6683 retval = page_index->select_handler(ctsio, page_index, 6684 (uint8_t *)page_header); 6685 6686 /* 6687 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6688 * wait until this queued command completes to finish processing 6689 * the mode page. If it returns anything other than 6690 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6691 * already set the sense information, freed the data pointer, and 6692 * completed the io for us. 6693 */ 6694 if (retval != CTL_RETVAL_COMPLETE) 6695 goto bailout_no_done; 6696 6697 /* 6698 * If the initiator sent us more than one page, parse the next one. 6699 */ 6700 if (*len_left > 0) 6701 goto do_next_page; 6702 6703 ctl_set_success(ctsio); 6704 free(ctsio->kern_data_ptr, M_CTL); 6705 ctl_done((union ctl_io *)ctsio); 6706 6707bailout_no_done: 6708 6709 return (CTL_RETVAL_COMPLETE); 6710 6711} 6712 6713int 6714ctl_mode_select(struct ctl_scsiio *ctsio) 6715{ 6716 int param_len, pf, sp; 6717 int header_size, bd_len; 6718 int len_left, len_used; 6719 struct ctl_page_index *page_index; 6720 struct ctl_lun *lun; 6721 int control_dev, page_len; 6722 union ctl_modepage_info *modepage_info; 6723 int retval; 6724 6725 pf = 0; 6726 sp = 0; 6727 page_len = 0; 6728 len_used = 0; 6729 len_left = 0; 6730 retval = 0; 6731 bd_len = 0; 6732 page_index = NULL; 6733 6734 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6735 6736 if (lun->be_lun->lun_type != T_DIRECT) 6737 control_dev = 1; 6738 else 6739 control_dev = 0; 6740 6741 switch (ctsio->cdb[0]) { 6742 case MODE_SELECT_6: { 6743 struct scsi_mode_select_6 *cdb; 6744 6745 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6746 6747 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6748 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6749 6750 param_len = cdb->length; 6751 header_size = sizeof(struct scsi_mode_header_6); 6752 break; 6753 } 6754 case MODE_SELECT_10: { 6755 struct scsi_mode_select_10 *cdb; 6756 6757 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6758 6759 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6760 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6761 6762 param_len = scsi_2btoul(cdb->length); 6763 header_size = sizeof(struct scsi_mode_header_10); 6764 break; 6765 } 6766 default: 6767 ctl_set_invalid_opcode(ctsio); 6768 ctl_done((union ctl_io *)ctsio); 6769 return (CTL_RETVAL_COMPLETE); 6770 break; /* NOTREACHED */ 6771 } 6772 6773 /* 6774 * From SPC-3: 6775 * "A parameter list length of zero indicates that the Data-Out Buffer 6776 * shall be empty. This condition shall not be considered as an error." 6777 */ 6778 if (param_len == 0) { 6779 ctl_set_success(ctsio); 6780 ctl_done((union ctl_io *)ctsio); 6781 return (CTL_RETVAL_COMPLETE); 6782 } 6783 6784 /* 6785 * Since we'll hit this the first time through, prior to 6786 * allocation, we don't need to free a data buffer here. 6787 */ 6788 if (param_len < header_size) { 6789 ctl_set_param_len_error(ctsio); 6790 ctl_done((union ctl_io *)ctsio); 6791 return (CTL_RETVAL_COMPLETE); 6792 } 6793 6794 /* 6795 * Allocate the data buffer and grab the user's data. In theory, 6796 * we shouldn't have to sanity check the parameter list length here 6797 * because the maximum size is 64K. We should be able to malloc 6798 * that much without too many problems. 6799 */ 6800 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6801 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6802 ctsio->kern_data_len = param_len; 6803 ctsio->kern_total_len = param_len; 6804 ctsio->kern_data_resid = 0; 6805 ctsio->kern_rel_offset = 0; 6806 ctsio->kern_sg_entries = 0; 6807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6808 ctsio->be_move_done = ctl_config_move_done; 6809 ctl_datamove((union ctl_io *)ctsio); 6810 6811 return (CTL_RETVAL_COMPLETE); 6812 } 6813 6814 switch (ctsio->cdb[0]) { 6815 case MODE_SELECT_6: { 6816 struct scsi_mode_header_6 *mh6; 6817 6818 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6819 bd_len = mh6->blk_desc_len; 6820 break; 6821 } 6822 case MODE_SELECT_10: { 6823 struct scsi_mode_header_10 *mh10; 6824 6825 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6826 bd_len = scsi_2btoul(mh10->blk_desc_len); 6827 break; 6828 } 6829 default: 6830 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6831 break; 6832 } 6833 6834 if (param_len < (header_size + bd_len)) { 6835 free(ctsio->kern_data_ptr, M_CTL); 6836 ctl_set_param_len_error(ctsio); 6837 ctl_done((union ctl_io *)ctsio); 6838 return (CTL_RETVAL_COMPLETE); 6839 } 6840 6841 /* 6842 * Set the IO_CONT flag, so that if this I/O gets passed to 6843 * ctl_config_write_done(), it'll get passed back to 6844 * ctl_do_mode_select() for further processing, or completion if 6845 * we're all done. 6846 */ 6847 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6848 ctsio->io_cont = ctl_do_mode_select; 6849 6850 modepage_info = (union ctl_modepage_info *) 6851 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6852 6853 memset(modepage_info, 0, sizeof(*modepage_info)); 6854 6855 len_left = param_len - header_size - bd_len; 6856 len_used = header_size + bd_len; 6857 6858 modepage_info->header.len_left = len_left; 6859 modepage_info->header.len_used = len_used; 6860 6861 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6862} 6863 6864int 6865ctl_mode_sense(struct ctl_scsiio *ctsio) 6866{ 6867 struct ctl_lun *lun; 6868 int pc, page_code, dbd, llba, subpage; 6869 int alloc_len, page_len, header_len, total_len; 6870 struct scsi_mode_block_descr *block_desc; 6871 struct ctl_page_index *page_index; 6872 int control_dev; 6873 6874 dbd = 0; 6875 llba = 0; 6876 block_desc = NULL; 6877 page_index = NULL; 6878 6879 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6880 6881 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6882 6883 if (lun->be_lun->lun_type != T_DIRECT) 6884 control_dev = 1; 6885 else 6886 control_dev = 0; 6887 6888 if (lun->flags & CTL_LUN_PR_RESERVED) { 6889 uint32_t residx; 6890 6891 /* 6892 * XXX KDM need a lock here. 6893 */ 6894 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6895 if ((lun->res_type == SPR_TYPE_EX_AC 6896 && residx != lun->pr_res_idx) 6897 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6898 || lun->res_type == SPR_TYPE_EX_AC_AR) 6899 && !lun->per_res[residx].registered)) { 6900 ctl_set_reservation_conflict(ctsio); 6901 ctl_done((union ctl_io *)ctsio); 6902 return (CTL_RETVAL_COMPLETE); 6903 } 6904 } 6905 6906 switch (ctsio->cdb[0]) { 6907 case MODE_SENSE_6: { 6908 struct scsi_mode_sense_6 *cdb; 6909 6910 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6911 6912 header_len = sizeof(struct scsi_mode_hdr_6); 6913 if (cdb->byte2 & SMS_DBD) 6914 dbd = 1; 6915 else 6916 header_len += sizeof(struct scsi_mode_block_descr); 6917 6918 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6919 page_code = cdb->page & SMS_PAGE_CODE; 6920 subpage = cdb->subpage; 6921 alloc_len = cdb->length; 6922 break; 6923 } 6924 case MODE_SENSE_10: { 6925 struct scsi_mode_sense_10 *cdb; 6926 6927 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6928 6929 header_len = sizeof(struct scsi_mode_hdr_10); 6930 6931 if (cdb->byte2 & SMS_DBD) 6932 dbd = 1; 6933 else 6934 header_len += sizeof(struct scsi_mode_block_descr); 6935 if (cdb->byte2 & SMS10_LLBAA) 6936 llba = 1; 6937 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6938 page_code = cdb->page & SMS_PAGE_CODE; 6939 subpage = cdb->subpage; 6940 alloc_len = scsi_2btoul(cdb->length); 6941 break; 6942 } 6943 default: 6944 ctl_set_invalid_opcode(ctsio); 6945 ctl_done((union ctl_io *)ctsio); 6946 return (CTL_RETVAL_COMPLETE); 6947 break; /* NOTREACHED */ 6948 } 6949 6950 /* 6951 * We have to make a first pass through to calculate the size of 6952 * the pages that match the user's query. Then we allocate enough 6953 * memory to hold it, and actually copy the data into the buffer. 6954 */ 6955 switch (page_code) { 6956 case SMS_ALL_PAGES_PAGE: { 6957 int i; 6958 6959 page_len = 0; 6960 6961 /* 6962 * At the moment, values other than 0 and 0xff here are 6963 * reserved according to SPC-3. 6964 */ 6965 if ((subpage != SMS_SUBPAGE_PAGE_0) 6966 && (subpage != SMS_SUBPAGE_ALL)) { 6967 ctl_set_invalid_field(ctsio, 6968 /*sks_valid*/ 1, 6969 /*command*/ 1, 6970 /*field*/ 3, 6971 /*bit_valid*/ 0, 6972 /*bit*/ 0); 6973 ctl_done((union ctl_io *)ctsio); 6974 return (CTL_RETVAL_COMPLETE); 6975 } 6976 6977 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6978 if ((control_dev != 0) 6979 && (lun->mode_pages.index[i].page_flags & 6980 CTL_PAGE_FLAG_DISK_ONLY)) 6981 continue; 6982 6983 /* 6984 * We don't use this subpage if the user didn't 6985 * request all subpages. 6986 */ 6987 if ((lun->mode_pages.index[i].subpage != 0) 6988 && (subpage == SMS_SUBPAGE_PAGE_0)) 6989 continue; 6990 6991#if 0 6992 printf("found page %#x len %d\n", 6993 lun->mode_pages.index[i].page_code & 6994 SMPH_PC_MASK, 6995 lun->mode_pages.index[i].page_len); 6996#endif 6997 page_len += lun->mode_pages.index[i].page_len; 6998 } 6999 break; 7000 } 7001 default: { 7002 int i; 7003 7004 page_len = 0; 7005 7006 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7007 /* Look for the right page code */ 7008 if ((lun->mode_pages.index[i].page_code & 7009 SMPH_PC_MASK) != page_code) 7010 continue; 7011 7012 /* Look for the right subpage or the subpage wildcard*/ 7013 if ((lun->mode_pages.index[i].subpage != subpage) 7014 && (subpage != SMS_SUBPAGE_ALL)) 7015 continue; 7016 7017 /* Make sure the page is supported for this dev type */ 7018 if ((control_dev != 0) 7019 && (lun->mode_pages.index[i].page_flags & 7020 CTL_PAGE_FLAG_DISK_ONLY)) 7021 continue; 7022 7023#if 0 7024 printf("found page %#x len %d\n", 7025 lun->mode_pages.index[i].page_code & 7026 SMPH_PC_MASK, 7027 lun->mode_pages.index[i].page_len); 7028#endif 7029 7030 page_len += lun->mode_pages.index[i].page_len; 7031 } 7032 7033 if (page_len == 0) { 7034 ctl_set_invalid_field(ctsio, 7035 /*sks_valid*/ 1, 7036 /*command*/ 1, 7037 /*field*/ 2, 7038 /*bit_valid*/ 1, 7039 /*bit*/ 5); 7040 ctl_done((union ctl_io *)ctsio); 7041 return (CTL_RETVAL_COMPLETE); 7042 } 7043 break; 7044 } 7045 } 7046 7047 total_len = header_len + page_len; 7048#if 0 7049 printf("header_len = %d, page_len = %d, total_len = %d\n", 7050 header_len, page_len, total_len); 7051#endif 7052 7053 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7054 ctsio->kern_sg_entries = 0; 7055 ctsio->kern_data_resid = 0; 7056 ctsio->kern_rel_offset = 0; 7057 if (total_len < alloc_len) { 7058 ctsio->residual = alloc_len - total_len; 7059 ctsio->kern_data_len = total_len; 7060 ctsio->kern_total_len = total_len; 7061 } else { 7062 ctsio->residual = 0; 7063 ctsio->kern_data_len = alloc_len; 7064 ctsio->kern_total_len = alloc_len; 7065 } 7066 7067 switch (ctsio->cdb[0]) { 7068 case MODE_SENSE_6: { 7069 struct scsi_mode_hdr_6 *header; 7070 7071 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7072 7073 header->datalen = ctl_min(total_len - 1, 254); 7074 7075 if (dbd) 7076 header->block_descr_len = 0; 7077 else 7078 header->block_descr_len = 7079 sizeof(struct scsi_mode_block_descr); 7080 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7081 break; 7082 } 7083 case MODE_SENSE_10: { 7084 struct scsi_mode_hdr_10 *header; 7085 int datalen; 7086 7087 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7088 7089 datalen = ctl_min(total_len - 2, 65533); 7090 scsi_ulto2b(datalen, header->datalen); 7091 if (dbd) 7092 scsi_ulto2b(0, header->block_descr_len); 7093 else 7094 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7095 header->block_descr_len); 7096 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7097 break; 7098 } 7099 default: 7100 panic("invalid CDB type %#x", ctsio->cdb[0]); 7101 break; /* NOTREACHED */ 7102 } 7103 7104 /* 7105 * If we've got a disk, use its blocksize in the block 7106 * descriptor. Otherwise, just set it to 0. 7107 */ 7108 if (dbd == 0) { 7109 if (control_dev != 0) 7110 scsi_ulto3b(lun->be_lun->blocksize, 7111 block_desc->block_len); 7112 else 7113 scsi_ulto3b(0, block_desc->block_len); 7114 } 7115 7116 switch (page_code) { 7117 case SMS_ALL_PAGES_PAGE: { 7118 int i, data_used; 7119 7120 data_used = header_len; 7121 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7122 struct ctl_page_index *page_index; 7123 7124 page_index = &lun->mode_pages.index[i]; 7125 7126 if ((control_dev != 0) 7127 && (page_index->page_flags & 7128 CTL_PAGE_FLAG_DISK_ONLY)) 7129 continue; 7130 7131 /* 7132 * We don't use this subpage if the user didn't 7133 * request all subpages. We already checked (above) 7134 * to make sure the user only specified a subpage 7135 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7136 */ 7137 if ((page_index->subpage != 0) 7138 && (subpage == SMS_SUBPAGE_PAGE_0)) 7139 continue; 7140 7141 /* 7142 * Call the handler, if it exists, to update the 7143 * page to the latest values. 7144 */ 7145 if (page_index->sense_handler != NULL) 7146 page_index->sense_handler(ctsio, page_index,pc); 7147 7148 memcpy(ctsio->kern_data_ptr + data_used, 7149 page_index->page_data + 7150 (page_index->page_len * pc), 7151 page_index->page_len); 7152 data_used += page_index->page_len; 7153 } 7154 break; 7155 } 7156 default: { 7157 int i, data_used; 7158 7159 data_used = header_len; 7160 7161 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7162 struct ctl_page_index *page_index; 7163 7164 page_index = &lun->mode_pages.index[i]; 7165 7166 /* Look for the right page code */ 7167 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7168 continue; 7169 7170 /* Look for the right subpage or the subpage wildcard*/ 7171 if ((page_index->subpage != subpage) 7172 && (subpage != SMS_SUBPAGE_ALL)) 7173 continue; 7174 7175 /* Make sure the page is supported for this dev type */ 7176 if ((control_dev != 0) 7177 && (page_index->page_flags & 7178 CTL_PAGE_FLAG_DISK_ONLY)) 7179 continue; 7180 7181 /* 7182 * Call the handler, if it exists, to update the 7183 * page to the latest values. 7184 */ 7185 if (page_index->sense_handler != NULL) 7186 page_index->sense_handler(ctsio, page_index,pc); 7187 7188 memcpy(ctsio->kern_data_ptr + data_used, 7189 page_index->page_data + 7190 (page_index->page_len * pc), 7191 page_index->page_len); 7192 data_used += page_index->page_len; 7193 } 7194 break; 7195 } 7196 } 7197 7198 ctsio->scsi_status = SCSI_STATUS_OK; 7199 7200 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7201 ctsio->be_move_done = ctl_config_move_done; 7202 ctl_datamove((union ctl_io *)ctsio); 7203 7204 return (CTL_RETVAL_COMPLETE); 7205} 7206 7207int 7208ctl_read_capacity(struct ctl_scsiio *ctsio) 7209{ 7210 struct scsi_read_capacity *cdb; 7211 struct scsi_read_capacity_data *data; 7212 struct ctl_lun *lun; 7213 uint32_t lba; 7214 7215 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7216 7217 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7218 7219 lba = scsi_4btoul(cdb->addr); 7220 if (((cdb->pmi & SRC_PMI) == 0) 7221 && (lba != 0)) { 7222 ctl_set_invalid_field(/*ctsio*/ ctsio, 7223 /*sks_valid*/ 1, 7224 /*command*/ 1, 7225 /*field*/ 2, 7226 /*bit_valid*/ 0, 7227 /*bit*/ 0); 7228 ctl_done((union ctl_io *)ctsio); 7229 return (CTL_RETVAL_COMPLETE); 7230 } 7231 7232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7233 7234 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7235 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7236 ctsio->residual = 0; 7237 ctsio->kern_data_len = sizeof(*data); 7238 ctsio->kern_total_len = sizeof(*data); 7239 ctsio->kern_data_resid = 0; 7240 ctsio->kern_rel_offset = 0; 7241 ctsio->kern_sg_entries = 0; 7242 7243 /* 7244 * If the maximum LBA is greater than 0xfffffffe, the user must 7245 * issue a SERVICE ACTION IN (16) command, with the read capacity 7246 * serivce action set. 7247 */ 7248 if (lun->be_lun->maxlba > 0xfffffffe) 7249 scsi_ulto4b(0xffffffff, data->addr); 7250 else 7251 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7252 7253 /* 7254 * XXX KDM this may not be 512 bytes... 7255 */ 7256 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7257 7258 ctsio->scsi_status = SCSI_STATUS_OK; 7259 7260 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7261 ctsio->be_move_done = ctl_config_move_done; 7262 ctl_datamove((union ctl_io *)ctsio); 7263 7264 return (CTL_RETVAL_COMPLETE); 7265} 7266 7267int 7268ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7269{ 7270 struct scsi_read_capacity_16 *cdb; 7271 struct scsi_read_capacity_data_long *data; 7272 struct ctl_lun *lun; 7273 uint64_t lba; 7274 uint32_t alloc_len; 7275 7276 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7277 7278 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7279 7280 alloc_len = scsi_4btoul(cdb->alloc_len); 7281 lba = scsi_8btou64(cdb->addr); 7282 7283 if ((cdb->reladr & SRC16_PMI) 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_long *)ctsio->kern_data_ptr; 7299 7300 if (sizeof(*data) < alloc_len) { 7301 ctsio->residual = alloc_len - sizeof(*data); 7302 ctsio->kern_data_len = sizeof(*data); 7303 ctsio->kern_total_len = sizeof(*data); 7304 } else { 7305 ctsio->residual = 0; 7306 ctsio->kern_data_len = alloc_len; 7307 ctsio->kern_total_len = alloc_len; 7308 } 7309 ctsio->kern_data_resid = 0; 7310 ctsio->kern_rel_offset = 0; 7311 ctsio->kern_sg_entries = 0; 7312 7313 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7314 /* XXX KDM this may not be 512 bytes... */ 7315 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7316 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7317 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7318 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7319 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 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_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7332{ 7333 struct scsi_maintenance_in *cdb; 7334 int retval; 7335 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7336 int num_target_port_groups, num_target_ports, single; 7337 struct ctl_lun *lun; 7338 struct ctl_softc *softc; 7339 struct ctl_port *port; 7340 struct scsi_target_group_data *rtg_ptr; 7341 struct scsi_target_group_data_extended *rtg_ext_ptr; 7342 struct scsi_target_port_group_descriptor *tpg_desc; 7343 7344 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7345 7346 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7347 softc = control_softc; 7348 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7349 7350 retval = CTL_RETVAL_COMPLETE; 7351 7352 switch (cdb->byte2 & STG_PDF_MASK) { 7353 case STG_PDF_LENGTH: 7354 ext = 0; 7355 break; 7356 case STG_PDF_EXTENDED: 7357 ext = 1; 7358 break; 7359 default: 7360 ctl_set_invalid_field(/*ctsio*/ ctsio, 7361 /*sks_valid*/ 1, 7362 /*command*/ 1, 7363 /*field*/ 2, 7364 /*bit_valid*/ 1, 7365 /*bit*/ 5); 7366 ctl_done((union ctl_io *)ctsio); 7367 return(retval); 7368 } 7369 7370 single = ctl_is_single; 7371 if (single) 7372 num_target_port_groups = 1; 7373 else 7374 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7375 num_target_ports = 0; 7376 mtx_lock(&softc->ctl_lock); 7377 STAILQ_FOREACH(port, &softc->port_list, links) { 7378 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7379 continue; 7380 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7381 continue; 7382 num_target_ports++; 7383 } 7384 mtx_unlock(&softc->ctl_lock); 7385 7386 if (ext) 7387 total_len = sizeof(struct scsi_target_group_data_extended); 7388 else 7389 total_len = sizeof(struct scsi_target_group_data); 7390 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7391 num_target_port_groups + 7392 sizeof(struct scsi_target_port_descriptor) * 7393 num_target_ports * num_target_port_groups; 7394 7395 alloc_len = scsi_4btoul(cdb->length); 7396 7397 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7398 7399 ctsio->kern_sg_entries = 0; 7400 7401 if (total_len < alloc_len) { 7402 ctsio->residual = alloc_len - total_len; 7403 ctsio->kern_data_len = total_len; 7404 ctsio->kern_total_len = total_len; 7405 } else { 7406 ctsio->residual = 0; 7407 ctsio->kern_data_len = alloc_len; 7408 ctsio->kern_total_len = alloc_len; 7409 } 7410 ctsio->kern_data_resid = 0; 7411 ctsio->kern_rel_offset = 0; 7412 7413 if (ext) { 7414 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7415 ctsio->kern_data_ptr; 7416 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7417 rtg_ext_ptr->format_type = 0x10; 7418 rtg_ext_ptr->implicit_transition_time = 0; 7419 tpg_desc = &rtg_ext_ptr->groups[0]; 7420 } else { 7421 rtg_ptr = (struct scsi_target_group_data *) 7422 ctsio->kern_data_ptr; 7423 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7424 tpg_desc = &rtg_ptr->groups[0]; 7425 } 7426 7427 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7428 mtx_lock(&softc->ctl_lock); 7429 for (g = 0; g < num_target_port_groups; g++) { 7430 if (g == pg) 7431 tpg_desc->pref_state = TPG_PRIMARY | 7432 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7433 else 7434 tpg_desc->pref_state = 7435 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7436 tpg_desc->support = TPG_AO_SUP; 7437 if (!single) 7438 tpg_desc->support |= TPG_AN_SUP; 7439 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7440 tpg_desc->status = TPG_IMPLICIT; 7441 pc = 0; 7442 STAILQ_FOREACH(port, &softc->port_list, links) { 7443 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7444 continue; 7445 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7446 CTL_MAX_LUNS) 7447 continue; 7448 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7449 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7450 relative_target_port_identifier); 7451 pc++; 7452 } 7453 tpg_desc->target_port_count = pc; 7454 tpg_desc = (struct scsi_target_port_group_descriptor *) 7455 &tpg_desc->descriptors[pc]; 7456 } 7457 mtx_unlock(&softc->ctl_lock); 7458 7459 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7460 ctsio->be_move_done = ctl_config_move_done; 7461 7462 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7463 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7464 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7465 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7466 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7467 7468 ctl_datamove((union ctl_io *)ctsio); 7469 return(retval); 7470} 7471 7472int 7473ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7474{ 7475 struct ctl_lun *lun; 7476 struct scsi_report_supported_opcodes *cdb; 7477 const struct ctl_cmd_entry *entry, *sentry; 7478 struct scsi_report_supported_opcodes_all *all; 7479 struct scsi_report_supported_opcodes_descr *descr; 7480 struct scsi_report_supported_opcodes_one *one; 7481 int retval; 7482 int alloc_len, total_len; 7483 int opcode, service_action, i, j, num; 7484 7485 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7486 7487 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7488 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7489 7490 retval = CTL_RETVAL_COMPLETE; 7491 7492 opcode = cdb->requested_opcode; 7493 service_action = scsi_2btoul(cdb->requested_service_action); 7494 switch (cdb->options & RSO_OPTIONS_MASK) { 7495 case RSO_OPTIONS_ALL: 7496 num = 0; 7497 for (i = 0; i < 256; i++) { 7498 entry = &ctl_cmd_table[i]; 7499 if (entry->flags & CTL_CMD_FLAG_SA5) { 7500 for (j = 0; j < 32; j++) { 7501 sentry = &((const struct ctl_cmd_entry *) 7502 entry->execute)[j]; 7503 if (ctl_cmd_applicable( 7504 lun->be_lun->lun_type, sentry)) 7505 num++; 7506 } 7507 } else { 7508 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7509 entry)) 7510 num++; 7511 } 7512 } 7513 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7514 num * sizeof(struct scsi_report_supported_opcodes_descr); 7515 break; 7516 case RSO_OPTIONS_OC: 7517 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7518 ctl_set_invalid_field(/*ctsio*/ ctsio, 7519 /*sks_valid*/ 1, 7520 /*command*/ 1, 7521 /*field*/ 2, 7522 /*bit_valid*/ 1, 7523 /*bit*/ 2); 7524 ctl_done((union ctl_io *)ctsio); 7525 return (CTL_RETVAL_COMPLETE); 7526 } 7527 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7528 break; 7529 case RSO_OPTIONS_OC_SA: 7530 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7531 service_action >= 32) { 7532 ctl_set_invalid_field(/*ctsio*/ ctsio, 7533 /*sks_valid*/ 1, 7534 /*command*/ 1, 7535 /*field*/ 2, 7536 /*bit_valid*/ 1, 7537 /*bit*/ 2); 7538 ctl_done((union ctl_io *)ctsio); 7539 return (CTL_RETVAL_COMPLETE); 7540 } 7541 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7542 break; 7543 default: 7544 ctl_set_invalid_field(/*ctsio*/ ctsio, 7545 /*sks_valid*/ 1, 7546 /*command*/ 1, 7547 /*field*/ 2, 7548 /*bit_valid*/ 1, 7549 /*bit*/ 2); 7550 ctl_done((union ctl_io *)ctsio); 7551 return (CTL_RETVAL_COMPLETE); 7552 } 7553 7554 alloc_len = scsi_4btoul(cdb->length); 7555 7556 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7557 7558 ctsio->kern_sg_entries = 0; 7559 7560 if (total_len < alloc_len) { 7561 ctsio->residual = alloc_len - total_len; 7562 ctsio->kern_data_len = total_len; 7563 ctsio->kern_total_len = total_len; 7564 } else { 7565 ctsio->residual = 0; 7566 ctsio->kern_data_len = alloc_len; 7567 ctsio->kern_total_len = alloc_len; 7568 } 7569 ctsio->kern_data_resid = 0; 7570 ctsio->kern_rel_offset = 0; 7571 7572 switch (cdb->options & RSO_OPTIONS_MASK) { 7573 case RSO_OPTIONS_ALL: 7574 all = (struct scsi_report_supported_opcodes_all *) 7575 ctsio->kern_data_ptr; 7576 num = 0; 7577 for (i = 0; i < 256; i++) { 7578 entry = &ctl_cmd_table[i]; 7579 if (entry->flags & CTL_CMD_FLAG_SA5) { 7580 for (j = 0; j < 32; j++) { 7581 sentry = &((const struct ctl_cmd_entry *) 7582 entry->execute)[j]; 7583 if (!ctl_cmd_applicable( 7584 lun->be_lun->lun_type, sentry)) 7585 continue; 7586 descr = &all->descr[num++]; 7587 descr->opcode = i; 7588 scsi_ulto2b(j, descr->service_action); 7589 descr->flags = RSO_SERVACTV; 7590 scsi_ulto2b(sentry->length, 7591 descr->cdb_length); 7592 } 7593 } else { 7594 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7595 entry)) 7596 continue; 7597 descr = &all->descr[num++]; 7598 descr->opcode = i; 7599 scsi_ulto2b(0, descr->service_action); 7600 descr->flags = 0; 7601 scsi_ulto2b(entry->length, descr->cdb_length); 7602 } 7603 } 7604 scsi_ulto4b( 7605 num * sizeof(struct scsi_report_supported_opcodes_descr), 7606 all->length); 7607 break; 7608 case RSO_OPTIONS_OC: 7609 one = (struct scsi_report_supported_opcodes_one *) 7610 ctsio->kern_data_ptr; 7611 entry = &ctl_cmd_table[opcode]; 7612 goto fill_one; 7613 case RSO_OPTIONS_OC_SA: 7614 one = (struct scsi_report_supported_opcodes_one *) 7615 ctsio->kern_data_ptr; 7616 entry = &ctl_cmd_table[opcode]; 7617 entry = &((const struct ctl_cmd_entry *) 7618 entry->execute)[service_action]; 7619fill_one: 7620 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7621 one->support = 3; 7622 scsi_ulto2b(entry->length, one->cdb_length); 7623 one->cdb_usage[0] = opcode; 7624 memcpy(&one->cdb_usage[1], entry->usage, 7625 entry->length - 1); 7626 } else 7627 one->support = 1; 7628 break; 7629 } 7630 7631 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7632 ctsio->be_move_done = ctl_config_move_done; 7633 7634 ctl_datamove((union ctl_io *)ctsio); 7635 return(retval); 7636} 7637 7638int 7639ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7640{ 7641 struct ctl_lun *lun; 7642 struct scsi_report_supported_tmf *cdb; 7643 struct scsi_report_supported_tmf_data *data; 7644 int retval; 7645 int alloc_len, total_len; 7646 7647 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7648 7649 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7650 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7651 7652 retval = CTL_RETVAL_COMPLETE; 7653 7654 total_len = sizeof(struct scsi_report_supported_tmf_data); 7655 alloc_len = scsi_4btoul(cdb->length); 7656 7657 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7658 7659 ctsio->kern_sg_entries = 0; 7660 7661 if (total_len < alloc_len) { 7662 ctsio->residual = alloc_len - total_len; 7663 ctsio->kern_data_len = total_len; 7664 ctsio->kern_total_len = total_len; 7665 } else { 7666 ctsio->residual = 0; 7667 ctsio->kern_data_len = alloc_len; 7668 ctsio->kern_total_len = alloc_len; 7669 } 7670 ctsio->kern_data_resid = 0; 7671 ctsio->kern_rel_offset = 0; 7672 7673 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7674 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7675 data->byte2 |= RST_ITNRS; 7676 7677 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7678 ctsio->be_move_done = ctl_config_move_done; 7679 7680 ctl_datamove((union ctl_io *)ctsio); 7681 return (retval); 7682} 7683 7684int 7685ctl_report_timestamp(struct ctl_scsiio *ctsio) 7686{ 7687 struct ctl_lun *lun; 7688 struct scsi_report_timestamp *cdb; 7689 struct scsi_report_timestamp_data *data; 7690 struct timeval tv; 7691 int64_t timestamp; 7692 int retval; 7693 int alloc_len, total_len; 7694 7695 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7696 7697 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7698 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7699 7700 retval = CTL_RETVAL_COMPLETE; 7701 7702 total_len = sizeof(struct scsi_report_timestamp_data); 7703 alloc_len = scsi_4btoul(cdb->length); 7704 7705 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7706 7707 ctsio->kern_sg_entries = 0; 7708 7709 if (total_len < alloc_len) { 7710 ctsio->residual = alloc_len - total_len; 7711 ctsio->kern_data_len = total_len; 7712 ctsio->kern_total_len = total_len; 7713 } else { 7714 ctsio->residual = 0; 7715 ctsio->kern_data_len = alloc_len; 7716 ctsio->kern_total_len = alloc_len; 7717 } 7718 ctsio->kern_data_resid = 0; 7719 ctsio->kern_rel_offset = 0; 7720 7721 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7722 scsi_ulto2b(sizeof(*data) - 2, data->length); 7723 data->origin = RTS_ORIG_OUTSIDE; 7724 getmicrotime(&tv); 7725 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7726 scsi_ulto4b(timestamp >> 16, data->timestamp); 7727 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7728 7729 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7730 ctsio->be_move_done = ctl_config_move_done; 7731 7732 ctl_datamove((union ctl_io *)ctsio); 7733 return (retval); 7734} 7735 7736int 7737ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7738{ 7739 struct scsi_per_res_in *cdb; 7740 int alloc_len, total_len = 0; 7741 /* struct scsi_per_res_in_rsrv in_data; */ 7742 struct ctl_lun *lun; 7743 struct ctl_softc *softc; 7744 7745 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7746 7747 softc = control_softc; 7748 7749 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7750 7751 alloc_len = scsi_2btoul(cdb->length); 7752 7753 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7754 7755retry: 7756 mtx_lock(&lun->lun_lock); 7757 switch (cdb->action) { 7758 case SPRI_RK: /* read keys */ 7759 total_len = sizeof(struct scsi_per_res_in_keys) + 7760 lun->pr_key_count * 7761 sizeof(struct scsi_per_res_key); 7762 break; 7763 case SPRI_RR: /* read reservation */ 7764 if (lun->flags & CTL_LUN_PR_RESERVED) 7765 total_len = sizeof(struct scsi_per_res_in_rsrv); 7766 else 7767 total_len = sizeof(struct scsi_per_res_in_header); 7768 break; 7769 case SPRI_RC: /* report capabilities */ 7770 total_len = sizeof(struct scsi_per_res_cap); 7771 break; 7772 case SPRI_RS: /* read full status */ 7773 total_len = sizeof(struct scsi_per_res_in_header) + 7774 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7775 lun->pr_key_count; 7776 break; 7777 default: 7778 panic("Invalid PR type %x", cdb->action); 7779 } 7780 mtx_unlock(&lun->lun_lock); 7781 7782 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7783 7784 if (total_len < alloc_len) { 7785 ctsio->residual = alloc_len - total_len; 7786 ctsio->kern_data_len = total_len; 7787 ctsio->kern_total_len = total_len; 7788 } else { 7789 ctsio->residual = 0; 7790 ctsio->kern_data_len = alloc_len; 7791 ctsio->kern_total_len = alloc_len; 7792 } 7793 7794 ctsio->kern_data_resid = 0; 7795 ctsio->kern_rel_offset = 0; 7796 ctsio->kern_sg_entries = 0; 7797 7798 mtx_lock(&lun->lun_lock); 7799 switch (cdb->action) { 7800 case SPRI_RK: { // read keys 7801 struct scsi_per_res_in_keys *res_keys; 7802 int i, key_count; 7803 7804 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7805 7806 /* 7807 * We had to drop the lock to allocate our buffer, which 7808 * leaves time for someone to come in with another 7809 * persistent reservation. (That is unlikely, though, 7810 * since this should be the only persistent reservation 7811 * command active right now.) 7812 */ 7813 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7814 (lun->pr_key_count * 7815 sizeof(struct scsi_per_res_key)))){ 7816 mtx_unlock(&lun->lun_lock); 7817 free(ctsio->kern_data_ptr, M_CTL); 7818 printf("%s: reservation length changed, retrying\n", 7819 __func__); 7820 goto retry; 7821 } 7822 7823 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7824 7825 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7826 lun->pr_key_count, res_keys->header.length); 7827 7828 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7829 if (!lun->per_res[i].registered) 7830 continue; 7831 7832 /* 7833 * We used lun->pr_key_count to calculate the 7834 * size to allocate. If it turns out the number of 7835 * initiators with the registered flag set is 7836 * larger than that (i.e. they haven't been kept in 7837 * sync), we've got a problem. 7838 */ 7839 if (key_count >= lun->pr_key_count) { 7840#ifdef NEEDTOPORT 7841 csevent_log(CSC_CTL | CSC_SHELF_SW | 7842 CTL_PR_ERROR, 7843 csevent_LogType_Fault, 7844 csevent_AlertLevel_Yellow, 7845 csevent_FRU_ShelfController, 7846 csevent_FRU_Firmware, 7847 csevent_FRU_Unknown, 7848 "registered keys %d >= key " 7849 "count %d", key_count, 7850 lun->pr_key_count); 7851#endif 7852 key_count++; 7853 continue; 7854 } 7855 memcpy(res_keys->keys[key_count].key, 7856 lun->per_res[i].res_key.key, 7857 ctl_min(sizeof(res_keys->keys[key_count].key), 7858 sizeof(lun->per_res[i].res_key))); 7859 key_count++; 7860 } 7861 break; 7862 } 7863 case SPRI_RR: { // read reservation 7864 struct scsi_per_res_in_rsrv *res; 7865 int tmp_len, header_only; 7866 7867 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7868 7869 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7870 7871 if (lun->flags & CTL_LUN_PR_RESERVED) 7872 { 7873 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7874 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7875 res->header.length); 7876 header_only = 0; 7877 } else { 7878 tmp_len = sizeof(struct scsi_per_res_in_header); 7879 scsi_ulto4b(0, res->header.length); 7880 header_only = 1; 7881 } 7882 7883 /* 7884 * We had to drop the lock to allocate our buffer, which 7885 * leaves time for someone to come in with another 7886 * persistent reservation. (That is unlikely, though, 7887 * since this should be the only persistent reservation 7888 * command active right now.) 7889 */ 7890 if (tmp_len != total_len) { 7891 mtx_unlock(&lun->lun_lock); 7892 free(ctsio->kern_data_ptr, M_CTL); 7893 printf("%s: reservation status changed, retrying\n", 7894 __func__); 7895 goto retry; 7896 } 7897 7898 /* 7899 * No reservation held, so we're done. 7900 */ 7901 if (header_only != 0) 7902 break; 7903 7904 /* 7905 * If the registration is an All Registrants type, the key 7906 * is 0, since it doesn't really matter. 7907 */ 7908 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7909 memcpy(res->data.reservation, 7910 &lun->per_res[lun->pr_res_idx].res_key, 7911 sizeof(struct scsi_per_res_key)); 7912 } 7913 res->data.scopetype = lun->res_type; 7914 break; 7915 } 7916 case SPRI_RC: //report capabilities 7917 { 7918 struct scsi_per_res_cap *res_cap; 7919 uint16_t type_mask; 7920 7921 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7922 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7923 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7924 type_mask = SPRI_TM_WR_EX_AR | 7925 SPRI_TM_EX_AC_RO | 7926 SPRI_TM_WR_EX_RO | 7927 SPRI_TM_EX_AC | 7928 SPRI_TM_WR_EX | 7929 SPRI_TM_EX_AC_AR; 7930 scsi_ulto2b(type_mask, res_cap->type_mask); 7931 break; 7932 } 7933 case SPRI_RS: { // read full status 7934 struct scsi_per_res_in_full *res_status; 7935 struct scsi_per_res_in_full_desc *res_desc; 7936 struct ctl_port *port; 7937 int i, len; 7938 7939 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7940 7941 /* 7942 * We had to drop the lock to allocate our buffer, which 7943 * leaves time for someone to come in with another 7944 * persistent reservation. (That is unlikely, though, 7945 * since this should be the only persistent reservation 7946 * command active right now.) 7947 */ 7948 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7949 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7950 lun->pr_key_count)){ 7951 mtx_unlock(&lun->lun_lock); 7952 free(ctsio->kern_data_ptr, M_CTL); 7953 printf("%s: reservation length changed, retrying\n", 7954 __func__); 7955 goto retry; 7956 } 7957 7958 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7959 7960 res_desc = &res_status->desc[0]; 7961 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7962 if (!lun->per_res[i].registered) 7963 continue; 7964 7965 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7966 sizeof(res_desc->res_key)); 7967 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7968 (lun->pr_res_idx == i || 7969 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7970 res_desc->flags = SPRI_FULL_R_HOLDER; 7971 res_desc->scopetype = lun->res_type; 7972 } 7973 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7974 res_desc->rel_trgt_port_id); 7975 len = 0; 7976 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7977 if (port != NULL) 7978 len = ctl_create_iid(port, 7979 i % CTL_MAX_INIT_PER_PORT, 7980 res_desc->transport_id); 7981 scsi_ulto4b(len, res_desc->additional_length); 7982 res_desc = (struct scsi_per_res_in_full_desc *) 7983 &res_desc->transport_id[len]; 7984 } 7985 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7986 res_status->header.length); 7987 break; 7988 } 7989 default: 7990 /* 7991 * This is a bug, because we just checked for this above, 7992 * and should have returned an error. 7993 */ 7994 panic("Invalid PR type %x", cdb->action); 7995 break; /* NOTREACHED */ 7996 } 7997 mtx_unlock(&lun->lun_lock); 7998 7999 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8000 ctsio->be_move_done = ctl_config_move_done; 8001 8002 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8003 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8004 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8005 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8006 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8007 8008 ctl_datamove((union ctl_io *)ctsio); 8009 8010 return (CTL_RETVAL_COMPLETE); 8011} 8012 8013/* 8014 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8015 * it should return. 8016 */ 8017static int 8018ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8019 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8020 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8021 struct scsi_per_res_out_parms* param) 8022{ 8023 union ctl_ha_msg persis_io; 8024 int retval, i; 8025 int isc_retval; 8026 8027 retval = 0; 8028 8029 mtx_lock(&lun->lun_lock); 8030 if (sa_res_key == 0) { 8031 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8032 /* validate scope and type */ 8033 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8034 SPR_LU_SCOPE) { 8035 mtx_unlock(&lun->lun_lock); 8036 ctl_set_invalid_field(/*ctsio*/ ctsio, 8037 /*sks_valid*/ 1, 8038 /*command*/ 1, 8039 /*field*/ 2, 8040 /*bit_valid*/ 1, 8041 /*bit*/ 4); 8042 ctl_done((union ctl_io *)ctsio); 8043 return (1); 8044 } 8045 8046 if (type>8 || type==2 || type==4 || type==0) { 8047 mtx_unlock(&lun->lun_lock); 8048 ctl_set_invalid_field(/*ctsio*/ ctsio, 8049 /*sks_valid*/ 1, 8050 /*command*/ 1, 8051 /*field*/ 2, 8052 /*bit_valid*/ 1, 8053 /*bit*/ 0); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 8058 /* temporarily unregister this nexus */ 8059 lun->per_res[residx].registered = 0; 8060 8061 /* 8062 * Unregister everybody else and build UA for 8063 * them 8064 */ 8065 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8066 if (lun->per_res[i].registered == 0) 8067 continue; 8068 8069 if (!persis_offset 8070 && i <CTL_MAX_INITIATORS) 8071 lun->pending_ua[i] |= 8072 CTL_UA_REG_PREEMPT; 8073 else if (persis_offset 8074 && i >= persis_offset) 8075 lun->pending_ua[i-persis_offset] |= 8076 CTL_UA_REG_PREEMPT; 8077 lun->per_res[i].registered = 0; 8078 memset(&lun->per_res[i].res_key, 0, 8079 sizeof(struct scsi_per_res_key)); 8080 } 8081 lun->per_res[residx].registered = 1; 8082 lun->pr_key_count = 1; 8083 lun->res_type = type; 8084 if (lun->res_type != SPR_TYPE_WR_EX_AR 8085 && lun->res_type != SPR_TYPE_EX_AC_AR) 8086 lun->pr_res_idx = residx; 8087 8088 /* send msg to other side */ 8089 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8090 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8091 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8092 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8093 persis_io.pr.pr_info.res_type = type; 8094 memcpy(persis_io.pr.pr_info.sa_res_key, 8095 param->serv_act_res_key, 8096 sizeof(param->serv_act_res_key)); 8097 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8098 &persis_io, sizeof(persis_io), 0)) > 8099 CTL_HA_STATUS_SUCCESS) { 8100 printf("CTL:Persis Out error returned " 8101 "from ctl_ha_msg_send %d\n", 8102 isc_retval); 8103 } 8104 } else { 8105 /* not all registrants */ 8106 mtx_unlock(&lun->lun_lock); 8107 free(ctsio->kern_data_ptr, M_CTL); 8108 ctl_set_invalid_field(ctsio, 8109 /*sks_valid*/ 1, 8110 /*command*/ 0, 8111 /*field*/ 8, 8112 /*bit_valid*/ 0, 8113 /*bit*/ 0); 8114 ctl_done((union ctl_io *)ctsio); 8115 return (1); 8116 } 8117 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8118 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8119 int found = 0; 8120 8121 if (res_key == sa_res_key) { 8122 /* special case */ 8123 /* 8124 * The spec implies this is not good but doesn't 8125 * say what to do. There are two choices either 8126 * generate a res conflict or check condition 8127 * with illegal field in parameter data. Since 8128 * that is what is done when the sa_res_key is 8129 * zero I'll take that approach since this has 8130 * to do with the sa_res_key. 8131 */ 8132 mtx_unlock(&lun->lun_lock); 8133 free(ctsio->kern_data_ptr, M_CTL); 8134 ctl_set_invalid_field(ctsio, 8135 /*sks_valid*/ 1, 8136 /*command*/ 0, 8137 /*field*/ 8, 8138 /*bit_valid*/ 0, 8139 /*bit*/ 0); 8140 ctl_done((union ctl_io *)ctsio); 8141 return (1); 8142 } 8143 8144 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8145 if (lun->per_res[i].registered 8146 && memcmp(param->serv_act_res_key, 8147 lun->per_res[i].res_key.key, 8148 sizeof(struct scsi_per_res_key)) != 0) 8149 continue; 8150 8151 found = 1; 8152 lun->per_res[i].registered = 0; 8153 memset(&lun->per_res[i].res_key, 0, 8154 sizeof(struct scsi_per_res_key)); 8155 lun->pr_key_count--; 8156 8157 if (!persis_offset && i < CTL_MAX_INITIATORS) 8158 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8159 else if (persis_offset && i >= persis_offset) 8160 lun->pending_ua[i-persis_offset] |= 8161 CTL_UA_REG_PREEMPT; 8162 } 8163 if (!found) { 8164 mtx_unlock(&lun->lun_lock); 8165 free(ctsio->kern_data_ptr, M_CTL); 8166 ctl_set_reservation_conflict(ctsio); 8167 ctl_done((union ctl_io *)ctsio); 8168 return (CTL_RETVAL_COMPLETE); 8169 } 8170 /* send msg to other side */ 8171 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8172 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8173 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8174 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8175 persis_io.pr.pr_info.res_type = type; 8176 memcpy(persis_io.pr.pr_info.sa_res_key, 8177 param->serv_act_res_key, 8178 sizeof(param->serv_act_res_key)); 8179 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8180 &persis_io, sizeof(persis_io), 0)) > 8181 CTL_HA_STATUS_SUCCESS) { 8182 printf("CTL:Persis Out error returned from " 8183 "ctl_ha_msg_send %d\n", isc_retval); 8184 } 8185 } else { 8186 /* Reserved but not all registrants */ 8187 /* sa_res_key is res holder */ 8188 if (memcmp(param->serv_act_res_key, 8189 lun->per_res[lun->pr_res_idx].res_key.key, 8190 sizeof(struct scsi_per_res_key)) == 0) { 8191 /* validate scope and type */ 8192 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8193 SPR_LU_SCOPE) { 8194 mtx_unlock(&lun->lun_lock); 8195 ctl_set_invalid_field(/*ctsio*/ ctsio, 8196 /*sks_valid*/ 1, 8197 /*command*/ 1, 8198 /*field*/ 2, 8199 /*bit_valid*/ 1, 8200 /*bit*/ 4); 8201 ctl_done((union ctl_io *)ctsio); 8202 return (1); 8203 } 8204 8205 if (type>8 || type==2 || type==4 || type==0) { 8206 mtx_unlock(&lun->lun_lock); 8207 ctl_set_invalid_field(/*ctsio*/ ctsio, 8208 /*sks_valid*/ 1, 8209 /*command*/ 1, 8210 /*field*/ 2, 8211 /*bit_valid*/ 1, 8212 /*bit*/ 0); 8213 ctl_done((union ctl_io *)ctsio); 8214 return (1); 8215 } 8216 8217 /* 8218 * Do the following: 8219 * if sa_res_key != res_key remove all 8220 * registrants w/sa_res_key and generate UA 8221 * for these registrants(Registrations 8222 * Preempted) if it wasn't an exclusive 8223 * reservation generate UA(Reservations 8224 * Preempted) for all other registered nexuses 8225 * if the type has changed. Establish the new 8226 * reservation and holder. If res_key and 8227 * sa_res_key are the same do the above 8228 * except don't unregister the res holder. 8229 */ 8230 8231 /* 8232 * Temporarily unregister so it won't get 8233 * removed or UA generated 8234 */ 8235 lun->per_res[residx].registered = 0; 8236 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8237 if (lun->per_res[i].registered == 0) 8238 continue; 8239 8240 if (memcmp(param->serv_act_res_key, 8241 lun->per_res[i].res_key.key, 8242 sizeof(struct scsi_per_res_key)) == 0) { 8243 lun->per_res[i].registered = 0; 8244 memset(&lun->per_res[i].res_key, 8245 0, 8246 sizeof(struct scsi_per_res_key)); 8247 lun->pr_key_count--; 8248 8249 if (!persis_offset 8250 && i < CTL_MAX_INITIATORS) 8251 lun->pending_ua[i] |= 8252 CTL_UA_REG_PREEMPT; 8253 else if (persis_offset 8254 && i >= persis_offset) 8255 lun->pending_ua[i-persis_offset] |= 8256 CTL_UA_REG_PREEMPT; 8257 } else if (type != lun->res_type 8258 && (lun->res_type == SPR_TYPE_WR_EX_RO 8259 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8260 if (!persis_offset 8261 && i < CTL_MAX_INITIATORS) 8262 lun->pending_ua[i] |= 8263 CTL_UA_RES_RELEASE; 8264 else if (persis_offset 8265 && i >= persis_offset) 8266 lun->pending_ua[ 8267 i-persis_offset] |= 8268 CTL_UA_RES_RELEASE; 8269 } 8270 } 8271 lun->per_res[residx].registered = 1; 8272 lun->res_type = type; 8273 if (lun->res_type != SPR_TYPE_WR_EX_AR 8274 && lun->res_type != SPR_TYPE_EX_AC_AR) 8275 lun->pr_res_idx = residx; 8276 else 8277 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8278 8279 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8280 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8281 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8282 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8283 persis_io.pr.pr_info.res_type = type; 8284 memcpy(persis_io.pr.pr_info.sa_res_key, 8285 param->serv_act_res_key, 8286 sizeof(param->serv_act_res_key)); 8287 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8288 &persis_io, sizeof(persis_io), 0)) > 8289 CTL_HA_STATUS_SUCCESS) { 8290 printf("CTL:Persis Out error returned " 8291 "from ctl_ha_msg_send %d\n", 8292 isc_retval); 8293 } 8294 } else { 8295 /* 8296 * sa_res_key is not the res holder just 8297 * remove registrants 8298 */ 8299 int found=0; 8300 8301 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8302 if (memcmp(param->serv_act_res_key, 8303 lun->per_res[i].res_key.key, 8304 sizeof(struct scsi_per_res_key)) != 0) 8305 continue; 8306 8307 found = 1; 8308 lun->per_res[i].registered = 0; 8309 memset(&lun->per_res[i].res_key, 0, 8310 sizeof(struct scsi_per_res_key)); 8311 lun->pr_key_count--; 8312 8313 if (!persis_offset 8314 && i < CTL_MAX_INITIATORS) 8315 lun->pending_ua[i] |= 8316 CTL_UA_REG_PREEMPT; 8317 else if (persis_offset 8318 && i >= persis_offset) 8319 lun->pending_ua[i-persis_offset] |= 8320 CTL_UA_REG_PREEMPT; 8321 } 8322 8323 if (!found) { 8324 mtx_unlock(&lun->lun_lock); 8325 free(ctsio->kern_data_ptr, M_CTL); 8326 ctl_set_reservation_conflict(ctsio); 8327 ctl_done((union ctl_io *)ctsio); 8328 return (1); 8329 } 8330 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8331 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8332 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8333 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8334 persis_io.pr.pr_info.res_type = type; 8335 memcpy(persis_io.pr.pr_info.sa_res_key, 8336 param->serv_act_res_key, 8337 sizeof(param->serv_act_res_key)); 8338 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8339 &persis_io, sizeof(persis_io), 0)) > 8340 CTL_HA_STATUS_SUCCESS) { 8341 printf("CTL:Persis Out error returned " 8342 "from ctl_ha_msg_send %d\n", 8343 isc_retval); 8344 } 8345 } 8346 } 8347 8348 lun->PRGeneration++; 8349 mtx_unlock(&lun->lun_lock); 8350 8351 return (retval); 8352} 8353 8354static void 8355ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8356{ 8357 int i; 8358 8359 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8360 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8361 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8362 msg->pr.pr_info.sa_res_key, 8363 sizeof(struct scsi_per_res_key)) != 0) { 8364 uint64_t sa_res_key; 8365 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8366 8367 if (sa_res_key == 0) { 8368 /* temporarily unregister this nexus */ 8369 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8370 8371 /* 8372 * Unregister everybody else and build UA for 8373 * them 8374 */ 8375 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8376 if (lun->per_res[i].registered == 0) 8377 continue; 8378 8379 if (!persis_offset 8380 && i < CTL_MAX_INITIATORS) 8381 lun->pending_ua[i] |= 8382 CTL_UA_REG_PREEMPT; 8383 else if (persis_offset && i >= persis_offset) 8384 lun->pending_ua[i - persis_offset] |= 8385 CTL_UA_REG_PREEMPT; 8386 lun->per_res[i].registered = 0; 8387 memset(&lun->per_res[i].res_key, 0, 8388 sizeof(struct scsi_per_res_key)); 8389 } 8390 8391 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8392 lun->pr_key_count = 1; 8393 lun->res_type = msg->pr.pr_info.res_type; 8394 if (lun->res_type != SPR_TYPE_WR_EX_AR 8395 && lun->res_type != SPR_TYPE_EX_AC_AR) 8396 lun->pr_res_idx = msg->pr.pr_info.residx; 8397 } else { 8398 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8399 if (memcmp(msg->pr.pr_info.sa_res_key, 8400 lun->per_res[i].res_key.key, 8401 sizeof(struct scsi_per_res_key)) != 0) 8402 continue; 8403 8404 lun->per_res[i].registered = 0; 8405 memset(&lun->per_res[i].res_key, 0, 8406 sizeof(struct scsi_per_res_key)); 8407 lun->pr_key_count--; 8408 8409 if (!persis_offset 8410 && i < persis_offset) 8411 lun->pending_ua[i] |= 8412 CTL_UA_REG_PREEMPT; 8413 else if (persis_offset 8414 && i >= persis_offset) 8415 lun->pending_ua[i - persis_offset] |= 8416 CTL_UA_REG_PREEMPT; 8417 } 8418 } 8419 } else { 8420 /* 8421 * Temporarily unregister so it won't get removed 8422 * or UA generated 8423 */ 8424 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8425 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8426 if (lun->per_res[i].registered == 0) 8427 continue; 8428 8429 if (memcmp(msg->pr.pr_info.sa_res_key, 8430 lun->per_res[i].res_key.key, 8431 sizeof(struct scsi_per_res_key)) == 0) { 8432 lun->per_res[i].registered = 0; 8433 memset(&lun->per_res[i].res_key, 0, 8434 sizeof(struct scsi_per_res_key)); 8435 lun->pr_key_count--; 8436 if (!persis_offset 8437 && i < CTL_MAX_INITIATORS) 8438 lun->pending_ua[i] |= 8439 CTL_UA_REG_PREEMPT; 8440 else if (persis_offset 8441 && i >= persis_offset) 8442 lun->pending_ua[i - persis_offset] |= 8443 CTL_UA_REG_PREEMPT; 8444 } else if (msg->pr.pr_info.res_type != lun->res_type 8445 && (lun->res_type == SPR_TYPE_WR_EX_RO 8446 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8447 if (!persis_offset 8448 && i < persis_offset) 8449 lun->pending_ua[i] |= 8450 CTL_UA_RES_RELEASE; 8451 else if (persis_offset 8452 && i >= persis_offset) 8453 lun->pending_ua[i - persis_offset] |= 8454 CTL_UA_RES_RELEASE; 8455 } 8456 } 8457 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8458 lun->res_type = msg->pr.pr_info.res_type; 8459 if (lun->res_type != SPR_TYPE_WR_EX_AR 8460 && lun->res_type != SPR_TYPE_EX_AC_AR) 8461 lun->pr_res_idx = msg->pr.pr_info.residx; 8462 else 8463 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8464 } 8465 lun->PRGeneration++; 8466 8467} 8468 8469 8470int 8471ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8472{ 8473 int retval; 8474 int isc_retval; 8475 u_int32_t param_len; 8476 struct scsi_per_res_out *cdb; 8477 struct ctl_lun *lun; 8478 struct scsi_per_res_out_parms* param; 8479 struct ctl_softc *softc; 8480 uint32_t residx; 8481 uint64_t res_key, sa_res_key; 8482 uint8_t type; 8483 union ctl_ha_msg persis_io; 8484 int i; 8485 8486 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8487 8488 retval = CTL_RETVAL_COMPLETE; 8489 8490 softc = control_softc; 8491 8492 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8493 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8494 8495 /* 8496 * We only support whole-LUN scope. The scope & type are ignored for 8497 * register, register and ignore existing key and clear. 8498 * We sometimes ignore scope and type on preempts too!! 8499 * Verify reservation type here as well. 8500 */ 8501 type = cdb->scope_type & SPR_TYPE_MASK; 8502 if ((cdb->action == SPRO_RESERVE) 8503 || (cdb->action == SPRO_RELEASE)) { 8504 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8505 ctl_set_invalid_field(/*ctsio*/ ctsio, 8506 /*sks_valid*/ 1, 8507 /*command*/ 1, 8508 /*field*/ 2, 8509 /*bit_valid*/ 1, 8510 /*bit*/ 4); 8511 ctl_done((union ctl_io *)ctsio); 8512 return (CTL_RETVAL_COMPLETE); 8513 } 8514 8515 if (type>8 || type==2 || type==4 || type==0) { 8516 ctl_set_invalid_field(/*ctsio*/ ctsio, 8517 /*sks_valid*/ 1, 8518 /*command*/ 1, 8519 /*field*/ 2, 8520 /*bit_valid*/ 1, 8521 /*bit*/ 0); 8522 ctl_done((union ctl_io *)ctsio); 8523 return (CTL_RETVAL_COMPLETE); 8524 } 8525 } 8526 8527 param_len = scsi_4btoul(cdb->length); 8528 8529 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8530 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8531 ctsio->kern_data_len = param_len; 8532 ctsio->kern_total_len = param_len; 8533 ctsio->kern_data_resid = 0; 8534 ctsio->kern_rel_offset = 0; 8535 ctsio->kern_sg_entries = 0; 8536 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8537 ctsio->be_move_done = ctl_config_move_done; 8538 ctl_datamove((union ctl_io *)ctsio); 8539 8540 return (CTL_RETVAL_COMPLETE); 8541 } 8542 8543 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8544 8545 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8546 res_key = scsi_8btou64(param->res_key.key); 8547 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8548 8549 /* 8550 * Validate the reservation key here except for SPRO_REG_IGNO 8551 * This must be done for all other service actions 8552 */ 8553 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8554 mtx_lock(&lun->lun_lock); 8555 if (lun->per_res[residx].registered) { 8556 if (memcmp(param->res_key.key, 8557 lun->per_res[residx].res_key.key, 8558 ctl_min(sizeof(param->res_key), 8559 sizeof(lun->per_res[residx].res_key))) != 0) { 8560 /* 8561 * The current key passed in doesn't match 8562 * the one the initiator previously 8563 * registered. 8564 */ 8565 mtx_unlock(&lun->lun_lock); 8566 free(ctsio->kern_data_ptr, M_CTL); 8567 ctl_set_reservation_conflict(ctsio); 8568 ctl_done((union ctl_io *)ctsio); 8569 return (CTL_RETVAL_COMPLETE); 8570 } 8571 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8572 /* 8573 * We are not registered 8574 */ 8575 mtx_unlock(&lun->lun_lock); 8576 free(ctsio->kern_data_ptr, M_CTL); 8577 ctl_set_reservation_conflict(ctsio); 8578 ctl_done((union ctl_io *)ctsio); 8579 return (CTL_RETVAL_COMPLETE); 8580 } else if (res_key != 0) { 8581 /* 8582 * We are not registered and trying to register but 8583 * the register key isn't zero. 8584 */ 8585 mtx_unlock(&lun->lun_lock); 8586 free(ctsio->kern_data_ptr, M_CTL); 8587 ctl_set_reservation_conflict(ctsio); 8588 ctl_done((union ctl_io *)ctsio); 8589 return (CTL_RETVAL_COMPLETE); 8590 } 8591 mtx_unlock(&lun->lun_lock); 8592 } 8593 8594 switch (cdb->action & SPRO_ACTION_MASK) { 8595 case SPRO_REGISTER: 8596 case SPRO_REG_IGNO: { 8597 8598#if 0 8599 printf("Registration received\n"); 8600#endif 8601 8602 /* 8603 * We don't support any of these options, as we report in 8604 * the read capabilities request (see 8605 * ctl_persistent_reserve_in(), above). 8606 */ 8607 if ((param->flags & SPR_SPEC_I_PT) 8608 || (param->flags & SPR_ALL_TG_PT) 8609 || (param->flags & SPR_APTPL)) { 8610 int bit_ptr; 8611 8612 if (param->flags & SPR_APTPL) 8613 bit_ptr = 0; 8614 else if (param->flags & SPR_ALL_TG_PT) 8615 bit_ptr = 2; 8616 else /* SPR_SPEC_I_PT */ 8617 bit_ptr = 3; 8618 8619 free(ctsio->kern_data_ptr, M_CTL); 8620 ctl_set_invalid_field(ctsio, 8621 /*sks_valid*/ 1, 8622 /*command*/ 0, 8623 /*field*/ 20, 8624 /*bit_valid*/ 1, 8625 /*bit*/ bit_ptr); 8626 ctl_done((union ctl_io *)ctsio); 8627 return (CTL_RETVAL_COMPLETE); 8628 } 8629 8630 mtx_lock(&lun->lun_lock); 8631 8632 /* 8633 * The initiator wants to clear the 8634 * key/unregister. 8635 */ 8636 if (sa_res_key == 0) { 8637 if ((res_key == 0 8638 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8639 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8640 && !lun->per_res[residx].registered)) { 8641 mtx_unlock(&lun->lun_lock); 8642 goto done; 8643 } 8644 8645 lun->per_res[residx].registered = 0; 8646 memset(&lun->per_res[residx].res_key, 8647 0, sizeof(lun->per_res[residx].res_key)); 8648 lun->pr_key_count--; 8649 8650 if (residx == lun->pr_res_idx) { 8651 lun->flags &= ~CTL_LUN_PR_RESERVED; 8652 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8653 8654 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8655 || lun->res_type == SPR_TYPE_EX_AC_RO) 8656 && lun->pr_key_count) { 8657 /* 8658 * If the reservation is a registrants 8659 * only type we need to generate a UA 8660 * for other registered inits. The 8661 * sense code should be RESERVATIONS 8662 * RELEASED 8663 */ 8664 8665 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8666 if (lun->per_res[ 8667 i+persis_offset].registered 8668 == 0) 8669 continue; 8670 lun->pending_ua[i] |= 8671 CTL_UA_RES_RELEASE; 8672 } 8673 } 8674 lun->res_type = 0; 8675 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8676 if (lun->pr_key_count==0) { 8677 lun->flags &= ~CTL_LUN_PR_RESERVED; 8678 lun->res_type = 0; 8679 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8680 } 8681 } 8682 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8683 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8684 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8685 persis_io.pr.pr_info.residx = residx; 8686 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8687 &persis_io, sizeof(persis_io), 0 )) > 8688 CTL_HA_STATUS_SUCCESS) { 8689 printf("CTL:Persis Out error returned from " 8690 "ctl_ha_msg_send %d\n", isc_retval); 8691 } 8692 } else /* sa_res_key != 0 */ { 8693 8694 /* 8695 * If we aren't registered currently then increment 8696 * the key count and set the registered flag. 8697 */ 8698 if (!lun->per_res[residx].registered) { 8699 lun->pr_key_count++; 8700 lun->per_res[residx].registered = 1; 8701 } 8702 8703 memcpy(&lun->per_res[residx].res_key, 8704 param->serv_act_res_key, 8705 ctl_min(sizeof(param->serv_act_res_key), 8706 sizeof(lun->per_res[residx].res_key))); 8707 8708 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8709 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8710 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8711 persis_io.pr.pr_info.residx = residx; 8712 memcpy(persis_io.pr.pr_info.sa_res_key, 8713 param->serv_act_res_key, 8714 sizeof(param->serv_act_res_key)); 8715 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8716 &persis_io, sizeof(persis_io), 0)) > 8717 CTL_HA_STATUS_SUCCESS) { 8718 printf("CTL:Persis Out error returned from " 8719 "ctl_ha_msg_send %d\n", isc_retval); 8720 } 8721 } 8722 lun->PRGeneration++; 8723 mtx_unlock(&lun->lun_lock); 8724 8725 break; 8726 } 8727 case SPRO_RESERVE: 8728#if 0 8729 printf("Reserve executed type %d\n", type); 8730#endif 8731 mtx_lock(&lun->lun_lock); 8732 if (lun->flags & CTL_LUN_PR_RESERVED) { 8733 /* 8734 * if this isn't the reservation holder and it's 8735 * not a "all registrants" type or if the type is 8736 * different then we have a conflict 8737 */ 8738 if ((lun->pr_res_idx != residx 8739 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8740 || lun->res_type != type) { 8741 mtx_unlock(&lun->lun_lock); 8742 free(ctsio->kern_data_ptr, M_CTL); 8743 ctl_set_reservation_conflict(ctsio); 8744 ctl_done((union ctl_io *)ctsio); 8745 return (CTL_RETVAL_COMPLETE); 8746 } 8747 mtx_unlock(&lun->lun_lock); 8748 } else /* create a reservation */ { 8749 /* 8750 * If it's not an "all registrants" type record 8751 * reservation holder 8752 */ 8753 if (type != SPR_TYPE_WR_EX_AR 8754 && type != SPR_TYPE_EX_AC_AR) 8755 lun->pr_res_idx = residx; /* Res holder */ 8756 else 8757 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8758 8759 lun->flags |= CTL_LUN_PR_RESERVED; 8760 lun->res_type = type; 8761 8762 mtx_unlock(&lun->lun_lock); 8763 8764 /* send msg to other side */ 8765 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8766 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8767 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8768 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8769 persis_io.pr.pr_info.res_type = type; 8770 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8771 &persis_io, sizeof(persis_io), 0)) > 8772 CTL_HA_STATUS_SUCCESS) { 8773 printf("CTL:Persis Out error returned from " 8774 "ctl_ha_msg_send %d\n", isc_retval); 8775 } 8776 } 8777 break; 8778 8779 case SPRO_RELEASE: 8780 mtx_lock(&lun->lun_lock); 8781 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8782 /* No reservation exists return good status */ 8783 mtx_unlock(&lun->lun_lock); 8784 goto done; 8785 } 8786 /* 8787 * Is this nexus a reservation holder? 8788 */ 8789 if (lun->pr_res_idx != residx 8790 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8791 /* 8792 * not a res holder return good status but 8793 * do nothing 8794 */ 8795 mtx_unlock(&lun->lun_lock); 8796 goto done; 8797 } 8798 8799 if (lun->res_type != type) { 8800 mtx_unlock(&lun->lun_lock); 8801 free(ctsio->kern_data_ptr, M_CTL); 8802 ctl_set_illegal_pr_release(ctsio); 8803 ctl_done((union ctl_io *)ctsio); 8804 return (CTL_RETVAL_COMPLETE); 8805 } 8806 8807 /* okay to release */ 8808 lun->flags &= ~CTL_LUN_PR_RESERVED; 8809 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8810 lun->res_type = 0; 8811 8812 /* 8813 * if this isn't an exclusive access 8814 * res generate UA for all other 8815 * registrants. 8816 */ 8817 if (type != SPR_TYPE_EX_AC 8818 && type != SPR_TYPE_WR_EX) { 8819 /* 8820 * temporarily unregister so we don't generate UA 8821 */ 8822 lun->per_res[residx].registered = 0; 8823 8824 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8825 if (lun->per_res[i+persis_offset].registered 8826 == 0) 8827 continue; 8828 lun->pending_ua[i] |= 8829 CTL_UA_RES_RELEASE; 8830 } 8831 8832 lun->per_res[residx].registered = 1; 8833 } 8834 mtx_unlock(&lun->lun_lock); 8835 /* Send msg to other side */ 8836 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8837 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8838 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8839 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8840 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8841 printf("CTL:Persis Out error returned from " 8842 "ctl_ha_msg_send %d\n", isc_retval); 8843 } 8844 break; 8845 8846 case SPRO_CLEAR: 8847 /* send msg to other side */ 8848 8849 mtx_lock(&lun->lun_lock); 8850 lun->flags &= ~CTL_LUN_PR_RESERVED; 8851 lun->res_type = 0; 8852 lun->pr_key_count = 0; 8853 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8854 8855 8856 memset(&lun->per_res[residx].res_key, 8857 0, sizeof(lun->per_res[residx].res_key)); 8858 lun->per_res[residx].registered = 0; 8859 8860 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8861 if (lun->per_res[i].registered) { 8862 if (!persis_offset && i < CTL_MAX_INITIATORS) 8863 lun->pending_ua[i] |= 8864 CTL_UA_RES_PREEMPT; 8865 else if (persis_offset && i >= persis_offset) 8866 lun->pending_ua[i-persis_offset] |= 8867 CTL_UA_RES_PREEMPT; 8868 8869 memset(&lun->per_res[i].res_key, 8870 0, sizeof(struct scsi_per_res_key)); 8871 lun->per_res[i].registered = 0; 8872 } 8873 lun->PRGeneration++; 8874 mtx_unlock(&lun->lun_lock); 8875 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8876 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8877 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8878 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8879 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8880 printf("CTL:Persis Out error returned from " 8881 "ctl_ha_msg_send %d\n", isc_retval); 8882 } 8883 break; 8884 8885 case SPRO_PREEMPT: { 8886 int nretval; 8887 8888 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8889 residx, ctsio, cdb, param); 8890 if (nretval != 0) 8891 return (CTL_RETVAL_COMPLETE); 8892 break; 8893 } 8894 default: 8895 panic("Invalid PR type %x", cdb->action); 8896 } 8897 8898done: 8899 free(ctsio->kern_data_ptr, M_CTL); 8900 ctl_set_success(ctsio); 8901 ctl_done((union ctl_io *)ctsio); 8902 8903 return (retval); 8904} 8905 8906/* 8907 * This routine is for handling a message from the other SC pertaining to 8908 * persistent reserve out. All the error checking will have been done 8909 * so only perorming the action need be done here to keep the two 8910 * in sync. 8911 */ 8912static void 8913ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8914{ 8915 struct ctl_lun *lun; 8916 struct ctl_softc *softc; 8917 int i; 8918 uint32_t targ_lun; 8919 8920 softc = control_softc; 8921 8922 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8923 lun = softc->ctl_luns[targ_lun]; 8924 mtx_lock(&lun->lun_lock); 8925 switch(msg->pr.pr_info.action) { 8926 case CTL_PR_REG_KEY: 8927 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8928 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8929 lun->pr_key_count++; 8930 } 8931 lun->PRGeneration++; 8932 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8933 msg->pr.pr_info.sa_res_key, 8934 sizeof(struct scsi_per_res_key)); 8935 break; 8936 8937 case CTL_PR_UNREG_KEY: 8938 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8939 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8940 0, sizeof(struct scsi_per_res_key)); 8941 lun->pr_key_count--; 8942 8943 /* XXX Need to see if the reservation has been released */ 8944 /* if so do we need to generate UA? */ 8945 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8946 lun->flags &= ~CTL_LUN_PR_RESERVED; 8947 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8948 8949 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8950 || lun->res_type == SPR_TYPE_EX_AC_RO) 8951 && lun->pr_key_count) { 8952 /* 8953 * If the reservation is a registrants 8954 * only type we need to generate a UA 8955 * for other registered inits. The 8956 * sense code should be RESERVATIONS 8957 * RELEASED 8958 */ 8959 8960 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8961 if (lun->per_res[i+ 8962 persis_offset].registered == 0) 8963 continue; 8964 8965 lun->pending_ua[i] |= 8966 CTL_UA_RES_RELEASE; 8967 } 8968 } 8969 lun->res_type = 0; 8970 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8971 if (lun->pr_key_count==0) { 8972 lun->flags &= ~CTL_LUN_PR_RESERVED; 8973 lun->res_type = 0; 8974 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8975 } 8976 } 8977 lun->PRGeneration++; 8978 break; 8979 8980 case CTL_PR_RESERVE: 8981 lun->flags |= CTL_LUN_PR_RESERVED; 8982 lun->res_type = msg->pr.pr_info.res_type; 8983 lun->pr_res_idx = msg->pr.pr_info.residx; 8984 8985 break; 8986 8987 case CTL_PR_RELEASE: 8988 /* 8989 * if this isn't an exclusive access res generate UA for all 8990 * other registrants. 8991 */ 8992 if (lun->res_type != SPR_TYPE_EX_AC 8993 && lun->res_type != SPR_TYPE_WR_EX) { 8994 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8995 if (lun->per_res[i+persis_offset].registered) 8996 lun->pending_ua[i] |= 8997 CTL_UA_RES_RELEASE; 8998 } 8999 9000 lun->flags &= ~CTL_LUN_PR_RESERVED; 9001 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9002 lun->res_type = 0; 9003 break; 9004 9005 case CTL_PR_PREEMPT: 9006 ctl_pro_preempt_other(lun, msg); 9007 break; 9008 case CTL_PR_CLEAR: 9009 lun->flags &= ~CTL_LUN_PR_RESERVED; 9010 lun->res_type = 0; 9011 lun->pr_key_count = 0; 9012 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9013 9014 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9015 if (lun->per_res[i].registered == 0) 9016 continue; 9017 if (!persis_offset 9018 && i < CTL_MAX_INITIATORS) 9019 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9020 else if (persis_offset 9021 && i >= persis_offset) 9022 lun->pending_ua[i-persis_offset] |= 9023 CTL_UA_RES_PREEMPT; 9024 memset(&lun->per_res[i].res_key, 0, 9025 sizeof(struct scsi_per_res_key)); 9026 lun->per_res[i].registered = 0; 9027 } 9028 lun->PRGeneration++; 9029 break; 9030 } 9031 9032 mtx_unlock(&lun->lun_lock); 9033} 9034 9035int 9036ctl_read_write(struct ctl_scsiio *ctsio) 9037{ 9038 struct ctl_lun *lun; 9039 struct ctl_lba_len_flags *lbalen; 9040 uint64_t lba; 9041 uint32_t num_blocks; 9042 int flags, retval; 9043 int isread; 9044 9045 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9046 9047 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9048 9049 flags = 0; 9050 retval = CTL_RETVAL_COMPLETE; 9051 9052 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9053 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9054 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9055 uint32_t residx; 9056 9057 /* 9058 * XXX KDM need a lock here. 9059 */ 9060 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9061 if ((lun->res_type == SPR_TYPE_EX_AC 9062 && residx != lun->pr_res_idx) 9063 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9064 || lun->res_type == SPR_TYPE_EX_AC_AR) 9065 && !lun->per_res[residx].registered)) { 9066 ctl_set_reservation_conflict(ctsio); 9067 ctl_done((union ctl_io *)ctsio); 9068 return (CTL_RETVAL_COMPLETE); 9069 } 9070 } 9071 9072 switch (ctsio->cdb[0]) { 9073 case READ_6: 9074 case WRITE_6: { 9075 struct scsi_rw_6 *cdb; 9076 9077 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9078 9079 lba = scsi_3btoul(cdb->addr); 9080 /* only 5 bits are valid in the most significant address byte */ 9081 lba &= 0x1fffff; 9082 num_blocks = cdb->length; 9083 /* 9084 * This is correct according to SBC-2. 9085 */ 9086 if (num_blocks == 0) 9087 num_blocks = 256; 9088 break; 9089 } 9090 case READ_10: 9091 case WRITE_10: { 9092 struct scsi_rw_10 *cdb; 9093 9094 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9095 if (cdb->byte2 & SRW10_FUA) 9096 flags |= CTL_LLF_FUA; 9097 if (cdb->byte2 & SRW10_DPO) 9098 flags |= CTL_LLF_DPO; 9099 lba = scsi_4btoul(cdb->addr); 9100 num_blocks = scsi_2btoul(cdb->length); 9101 break; 9102 } 9103 case WRITE_VERIFY_10: { 9104 struct scsi_write_verify_10 *cdb; 9105 9106 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9107 flags |= CTL_LLF_FUA; 9108 if (cdb->byte2 & SWV_DPO) 9109 flags |= CTL_LLF_DPO; 9110 lba = scsi_4btoul(cdb->addr); 9111 num_blocks = scsi_2btoul(cdb->length); 9112 break; 9113 } 9114 case READ_12: 9115 case WRITE_12: { 9116 struct scsi_rw_12 *cdb; 9117 9118 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9119 if (cdb->byte2 & SRW12_FUA) 9120 flags |= CTL_LLF_FUA; 9121 if (cdb->byte2 & SRW12_DPO) 9122 flags |= CTL_LLF_DPO; 9123 lba = scsi_4btoul(cdb->addr); 9124 num_blocks = scsi_4btoul(cdb->length); 9125 break; 9126 } 9127 case WRITE_VERIFY_12: { 9128 struct scsi_write_verify_12 *cdb; 9129 9130 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9131 flags |= CTL_LLF_FUA; 9132 if (cdb->byte2 & SWV_DPO) 9133 flags |= CTL_LLF_DPO; 9134 lba = scsi_4btoul(cdb->addr); 9135 num_blocks = scsi_4btoul(cdb->length); 9136 break; 9137 } 9138 case READ_16: 9139 case WRITE_16: { 9140 struct scsi_rw_16 *cdb; 9141 9142 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9143 if (cdb->byte2 & SRW12_FUA) 9144 flags |= CTL_LLF_FUA; 9145 if (cdb->byte2 & SRW12_DPO) 9146 flags |= CTL_LLF_DPO; 9147 lba = scsi_8btou64(cdb->addr); 9148 num_blocks = scsi_4btoul(cdb->length); 9149 break; 9150 } 9151 case WRITE_VERIFY_16: { 9152 struct scsi_write_verify_16 *cdb; 9153 9154 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9155 flags |= CTL_LLF_FUA; 9156 if (cdb->byte2 & SWV_DPO) 9157 flags |= CTL_LLF_DPO; 9158 lba = scsi_8btou64(cdb->addr); 9159 num_blocks = scsi_4btoul(cdb->length); 9160 break; 9161 } 9162 default: 9163 /* 9164 * We got a command we don't support. This shouldn't 9165 * happen, commands should be filtered out above us. 9166 */ 9167 ctl_set_invalid_opcode(ctsio); 9168 ctl_done((union ctl_io *)ctsio); 9169 9170 return (CTL_RETVAL_COMPLETE); 9171 break; /* NOTREACHED */ 9172 } 9173 9174 /* 9175 * The first check is to make sure we're in bounds, the second 9176 * check is to catch wrap-around problems. If the lba + num blocks 9177 * is less than the lba, then we've wrapped around and the block 9178 * range is invalid anyway. 9179 */ 9180 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9181 || ((lba + num_blocks) < lba)) { 9182 ctl_set_lba_out_of_range(ctsio); 9183 ctl_done((union ctl_io *)ctsio); 9184 return (CTL_RETVAL_COMPLETE); 9185 } 9186 9187 /* 9188 * According to SBC-3, a transfer length of 0 is not an error. 9189 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9190 * translates to 256 blocks for those commands. 9191 */ 9192 if (num_blocks == 0) { 9193 ctl_set_success(ctsio); 9194 ctl_done((union ctl_io *)ctsio); 9195 return (CTL_RETVAL_COMPLETE); 9196 } 9197 9198 /* Set FUA and/or DPO if caches are disabled. */ 9199 if (isread) { 9200 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9201 SCP_RCD) != 0) 9202 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9203 } else { 9204 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9205 SCP_WCE) == 0) 9206 flags |= CTL_LLF_FUA; 9207 } 9208 9209 lbalen = (struct ctl_lba_len_flags *) 9210 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9211 lbalen->lba = lba; 9212 lbalen->len = num_blocks; 9213 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9214 9215 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9216 ctsio->kern_rel_offset = 0; 9217 9218 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9219 9220 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9221 9222 return (retval); 9223} 9224 9225static int 9226ctl_cnw_cont(union ctl_io *io) 9227{ 9228 struct ctl_scsiio *ctsio; 9229 struct ctl_lun *lun; 9230 struct ctl_lba_len_flags *lbalen; 9231 int retval; 9232 9233 ctsio = &io->scsiio; 9234 ctsio->io_hdr.status = CTL_STATUS_NONE; 9235 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9237 lbalen = (struct ctl_lba_len_flags *) 9238 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9239 lbalen->flags &= ~CTL_LLF_COMPARE; 9240 lbalen->flags |= CTL_LLF_WRITE; 9241 9242 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9243 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9244 return (retval); 9245} 9246 9247int 9248ctl_cnw(struct ctl_scsiio *ctsio) 9249{ 9250 struct ctl_lun *lun; 9251 struct ctl_lba_len_flags *lbalen; 9252 uint64_t lba; 9253 uint32_t num_blocks; 9254 int flags, retval; 9255 9256 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9257 9258 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9259 9260 flags = 0; 9261 retval = CTL_RETVAL_COMPLETE; 9262 9263 switch (ctsio->cdb[0]) { 9264 case COMPARE_AND_WRITE: { 9265 struct scsi_compare_and_write *cdb; 9266 9267 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9268 if (cdb->byte2 & SRW10_FUA) 9269 flags |= CTL_LLF_FUA; 9270 if (cdb->byte2 & SRW10_DPO) 9271 flags |= CTL_LLF_DPO; 9272 lba = scsi_8btou64(cdb->addr); 9273 num_blocks = cdb->length; 9274 break; 9275 } 9276 default: 9277 /* 9278 * We got a command we don't support. This shouldn't 9279 * happen, commands should be filtered out above us. 9280 */ 9281 ctl_set_invalid_opcode(ctsio); 9282 ctl_done((union ctl_io *)ctsio); 9283 9284 return (CTL_RETVAL_COMPLETE); 9285 break; /* NOTREACHED */ 9286 } 9287 9288 /* 9289 * The first check is to make sure we're in bounds, the second 9290 * check is to catch wrap-around problems. If the lba + num blocks 9291 * is less than the lba, then we've wrapped around and the block 9292 * range is invalid anyway. 9293 */ 9294 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9295 || ((lba + num_blocks) < lba)) { 9296 ctl_set_lba_out_of_range(ctsio); 9297 ctl_done((union ctl_io *)ctsio); 9298 return (CTL_RETVAL_COMPLETE); 9299 } 9300 9301 /* 9302 * According to SBC-3, a transfer length of 0 is not an error. 9303 */ 9304 if (num_blocks == 0) { 9305 ctl_set_success(ctsio); 9306 ctl_done((union ctl_io *)ctsio); 9307 return (CTL_RETVAL_COMPLETE); 9308 } 9309 9310 /* Set FUA if write cache is disabled. */ 9311 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9312 SCP_WCE) == 0) 9313 flags |= CTL_LLF_FUA; 9314 9315 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9316 ctsio->kern_rel_offset = 0; 9317 9318 /* 9319 * Set the IO_CONT flag, so that if this I/O gets passed to 9320 * ctl_data_submit_done(), it'll get passed back to 9321 * ctl_ctl_cnw_cont() for further processing. 9322 */ 9323 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9324 ctsio->io_cont = ctl_cnw_cont; 9325 9326 lbalen = (struct ctl_lba_len_flags *) 9327 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9328 lbalen->lba = lba; 9329 lbalen->len = num_blocks; 9330 lbalen->flags = CTL_LLF_COMPARE | flags; 9331 9332 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9333 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9334 return (retval); 9335} 9336 9337int 9338ctl_verify(struct ctl_scsiio *ctsio) 9339{ 9340 struct ctl_lun *lun; 9341 struct ctl_lba_len_flags *lbalen; 9342 uint64_t lba; 9343 uint32_t num_blocks; 9344 int bytchk, flags; 9345 int retval; 9346 9347 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9348 9349 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9350 9351 bytchk = 0; 9352 flags = CTL_LLF_FUA; 9353 retval = CTL_RETVAL_COMPLETE; 9354 9355 switch (ctsio->cdb[0]) { 9356 case VERIFY_10: { 9357 struct scsi_verify_10 *cdb; 9358 9359 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9360 if (cdb->byte2 & SVFY_BYTCHK) 9361 bytchk = 1; 9362 if (cdb->byte2 & SVFY_DPO) 9363 flags |= CTL_LLF_DPO; 9364 lba = scsi_4btoul(cdb->addr); 9365 num_blocks = scsi_2btoul(cdb->length); 9366 break; 9367 } 9368 case VERIFY_12: { 9369 struct scsi_verify_12 *cdb; 9370 9371 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9372 if (cdb->byte2 & SVFY_BYTCHK) 9373 bytchk = 1; 9374 if (cdb->byte2 & SVFY_DPO) 9375 flags |= CTL_LLF_DPO; 9376 lba = scsi_4btoul(cdb->addr); 9377 num_blocks = scsi_4btoul(cdb->length); 9378 break; 9379 } 9380 case VERIFY_16: { 9381 struct scsi_rw_16 *cdb; 9382 9383 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9384 if (cdb->byte2 & SVFY_BYTCHK) 9385 bytchk = 1; 9386 if (cdb->byte2 & SVFY_DPO) 9387 flags |= CTL_LLF_DPO; 9388 lba = scsi_8btou64(cdb->addr); 9389 num_blocks = scsi_4btoul(cdb->length); 9390 break; 9391 } 9392 default: 9393 /* 9394 * We got a command we don't support. This shouldn't 9395 * happen, commands should be filtered out above us. 9396 */ 9397 ctl_set_invalid_opcode(ctsio); 9398 ctl_done((union ctl_io *)ctsio); 9399 return (CTL_RETVAL_COMPLETE); 9400 } 9401 9402 /* 9403 * The first check is to make sure we're in bounds, the second 9404 * check is to catch wrap-around problems. If the lba + num blocks 9405 * is less than the lba, then we've wrapped around and the block 9406 * range is invalid anyway. 9407 */ 9408 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9409 || ((lba + num_blocks) < lba)) { 9410 ctl_set_lba_out_of_range(ctsio); 9411 ctl_done((union ctl_io *)ctsio); 9412 return (CTL_RETVAL_COMPLETE); 9413 } 9414 9415 /* 9416 * According to SBC-3, a transfer length of 0 is not an error. 9417 */ 9418 if (num_blocks == 0) { 9419 ctl_set_success(ctsio); 9420 ctl_done((union ctl_io *)ctsio); 9421 return (CTL_RETVAL_COMPLETE); 9422 } 9423 9424 lbalen = (struct ctl_lba_len_flags *) 9425 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9426 lbalen->lba = lba; 9427 lbalen->len = num_blocks; 9428 if (bytchk) { 9429 lbalen->flags = CTL_LLF_COMPARE | flags; 9430 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9431 } else { 9432 lbalen->flags = CTL_LLF_VERIFY | flags; 9433 ctsio->kern_total_len = 0; 9434 } 9435 ctsio->kern_rel_offset = 0; 9436 9437 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9438 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9439 return (retval); 9440} 9441 9442int 9443ctl_report_luns(struct ctl_scsiio *ctsio) 9444{ 9445 struct scsi_report_luns *cdb; 9446 struct scsi_report_luns_data *lun_data; 9447 struct ctl_lun *lun, *request_lun; 9448 int num_luns, retval; 9449 uint32_t alloc_len, lun_datalen; 9450 int num_filled, well_known; 9451 uint32_t initidx, targ_lun_id, lun_id; 9452 9453 retval = CTL_RETVAL_COMPLETE; 9454 well_known = 0; 9455 9456 cdb = (struct scsi_report_luns *)ctsio->cdb; 9457 9458 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9459 9460 mtx_lock(&control_softc->ctl_lock); 9461 num_luns = control_softc->num_luns; 9462 mtx_unlock(&control_softc->ctl_lock); 9463 9464 switch (cdb->select_report) { 9465 case RPL_REPORT_DEFAULT: 9466 case RPL_REPORT_ALL: 9467 break; 9468 case RPL_REPORT_WELLKNOWN: 9469 well_known = 1; 9470 num_luns = 0; 9471 break; 9472 default: 9473 ctl_set_invalid_field(ctsio, 9474 /*sks_valid*/ 1, 9475 /*command*/ 1, 9476 /*field*/ 2, 9477 /*bit_valid*/ 0, 9478 /*bit*/ 0); 9479 ctl_done((union ctl_io *)ctsio); 9480 return (retval); 9481 break; /* NOTREACHED */ 9482 } 9483 9484 alloc_len = scsi_4btoul(cdb->length); 9485 /* 9486 * The initiator has to allocate at least 16 bytes for this request, 9487 * so he can at least get the header and the first LUN. Otherwise 9488 * we reject the request (per SPC-3 rev 14, section 6.21). 9489 */ 9490 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9491 sizeof(struct scsi_report_luns_lundata))) { 9492 ctl_set_invalid_field(ctsio, 9493 /*sks_valid*/ 1, 9494 /*command*/ 1, 9495 /*field*/ 6, 9496 /*bit_valid*/ 0, 9497 /*bit*/ 0); 9498 ctl_done((union ctl_io *)ctsio); 9499 return (retval); 9500 } 9501 9502 request_lun = (struct ctl_lun *) 9503 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9504 9505 lun_datalen = sizeof(*lun_data) + 9506 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9507 9508 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9509 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9510 ctsio->kern_sg_entries = 0; 9511 9512 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9513 9514 mtx_lock(&control_softc->ctl_lock); 9515 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9516 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9517 if (lun_id >= CTL_MAX_LUNS) 9518 continue; 9519 lun = control_softc->ctl_luns[lun_id]; 9520 if (lun == NULL) 9521 continue; 9522 9523 if (targ_lun_id <= 0xff) { 9524 /* 9525 * Peripheral addressing method, bus number 0. 9526 */ 9527 lun_data->luns[num_filled].lundata[0] = 9528 RPL_LUNDATA_ATYP_PERIPH; 9529 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9530 num_filled++; 9531 } else if (targ_lun_id <= 0x3fff) { 9532 /* 9533 * Flat addressing method. 9534 */ 9535 lun_data->luns[num_filled].lundata[0] = 9536 RPL_LUNDATA_ATYP_FLAT | 9537 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9538#ifdef OLDCTLHEADERS 9539 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9540 (targ_lun_id & SRLD_BUS_LUN_MASK); 9541#endif 9542 lun_data->luns[num_filled].lundata[1] = 9543#ifdef OLDCTLHEADERS 9544 targ_lun_id >> SRLD_BUS_LUN_BITS; 9545#endif 9546 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9547 num_filled++; 9548 } else { 9549 printf("ctl_report_luns: bogus LUN number %jd, " 9550 "skipping\n", (intmax_t)targ_lun_id); 9551 } 9552 /* 9553 * According to SPC-3, rev 14 section 6.21: 9554 * 9555 * "The execution of a REPORT LUNS command to any valid and 9556 * installed logical unit shall clear the REPORTED LUNS DATA 9557 * HAS CHANGED unit attention condition for all logical 9558 * units of that target with respect to the requesting 9559 * initiator. A valid and installed logical unit is one 9560 * having a PERIPHERAL QUALIFIER of 000b in the standard 9561 * INQUIRY data (see 6.4.2)." 9562 * 9563 * If request_lun is NULL, the LUN this report luns command 9564 * was issued to is either disabled or doesn't exist. In that 9565 * case, we shouldn't clear any pending lun change unit 9566 * attention. 9567 */ 9568 if (request_lun != NULL) { 9569 mtx_lock(&lun->lun_lock); 9570 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9571 mtx_unlock(&lun->lun_lock); 9572 } 9573 } 9574 mtx_unlock(&control_softc->ctl_lock); 9575 9576 /* 9577 * It's quite possible that we've returned fewer LUNs than we allocated 9578 * space for. Trim it. 9579 */ 9580 lun_datalen = sizeof(*lun_data) + 9581 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9582 9583 if (lun_datalen < alloc_len) { 9584 ctsio->residual = alloc_len - lun_datalen; 9585 ctsio->kern_data_len = lun_datalen; 9586 ctsio->kern_total_len = lun_datalen; 9587 } else { 9588 ctsio->residual = 0; 9589 ctsio->kern_data_len = alloc_len; 9590 ctsio->kern_total_len = alloc_len; 9591 } 9592 ctsio->kern_data_resid = 0; 9593 ctsio->kern_rel_offset = 0; 9594 ctsio->kern_sg_entries = 0; 9595 9596 /* 9597 * We set this to the actual data length, regardless of how much 9598 * space we actually have to return results. If the user looks at 9599 * this value, he'll know whether or not he allocated enough space 9600 * and reissue the command if necessary. We don't support well 9601 * known logical units, so if the user asks for that, return none. 9602 */ 9603 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9604 9605 /* 9606 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9607 * this request. 9608 */ 9609 ctsio->scsi_status = SCSI_STATUS_OK; 9610 9611 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9612 ctsio->be_move_done = ctl_config_move_done; 9613 ctl_datamove((union ctl_io *)ctsio); 9614 9615 return (retval); 9616} 9617 9618int 9619ctl_request_sense(struct ctl_scsiio *ctsio) 9620{ 9621 struct scsi_request_sense *cdb; 9622 struct scsi_sense_data *sense_ptr; 9623 struct ctl_lun *lun; 9624 uint32_t initidx; 9625 int have_error; 9626 scsi_sense_data_type sense_format; 9627 9628 cdb = (struct scsi_request_sense *)ctsio->cdb; 9629 9630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9631 9632 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9633 9634 /* 9635 * Determine which sense format the user wants. 9636 */ 9637 if (cdb->byte2 & SRS_DESC) 9638 sense_format = SSD_TYPE_DESC; 9639 else 9640 sense_format = SSD_TYPE_FIXED; 9641 9642 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9643 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9644 ctsio->kern_sg_entries = 0; 9645 9646 /* 9647 * struct scsi_sense_data, which is currently set to 256 bytes, is 9648 * larger than the largest allowed value for the length field in the 9649 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9650 */ 9651 ctsio->residual = 0; 9652 ctsio->kern_data_len = cdb->length; 9653 ctsio->kern_total_len = cdb->length; 9654 9655 ctsio->kern_data_resid = 0; 9656 ctsio->kern_rel_offset = 0; 9657 ctsio->kern_sg_entries = 0; 9658 9659 /* 9660 * If we don't have a LUN, we don't have any pending sense. 9661 */ 9662 if (lun == NULL) 9663 goto no_sense; 9664 9665 have_error = 0; 9666 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9667 /* 9668 * Check for pending sense, and then for pending unit attentions. 9669 * Pending sense gets returned first, then pending unit attentions. 9670 */ 9671 mtx_lock(&lun->lun_lock); 9672#ifdef CTL_WITH_CA 9673 if (ctl_is_set(lun->have_ca, initidx)) { 9674 scsi_sense_data_type stored_format; 9675 9676 /* 9677 * Check to see which sense format was used for the stored 9678 * sense data. 9679 */ 9680 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9681 9682 /* 9683 * If the user requested a different sense format than the 9684 * one we stored, then we need to convert it to the other 9685 * format. If we're going from descriptor to fixed format 9686 * sense data, we may lose things in translation, depending 9687 * on what options were used. 9688 * 9689 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9690 * for some reason we'll just copy it out as-is. 9691 */ 9692 if ((stored_format == SSD_TYPE_FIXED) 9693 && (sense_format == SSD_TYPE_DESC)) 9694 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9695 &lun->pending_sense[initidx], 9696 (struct scsi_sense_data_desc *)sense_ptr); 9697 else if ((stored_format == SSD_TYPE_DESC) 9698 && (sense_format == SSD_TYPE_FIXED)) 9699 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9700 &lun->pending_sense[initidx], 9701 (struct scsi_sense_data_fixed *)sense_ptr); 9702 else 9703 memcpy(sense_ptr, &lun->pending_sense[initidx], 9704 ctl_min(sizeof(*sense_ptr), 9705 sizeof(lun->pending_sense[initidx]))); 9706 9707 ctl_clear_mask(lun->have_ca, initidx); 9708 have_error = 1; 9709 } else 9710#endif 9711 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9712 ctl_ua_type ua_type; 9713 9714 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9715 sense_ptr, sense_format); 9716 if (ua_type != CTL_UA_NONE) 9717 have_error = 1; 9718 } 9719 mtx_unlock(&lun->lun_lock); 9720 9721 /* 9722 * We already have a pending error, return it. 9723 */ 9724 if (have_error != 0) { 9725 /* 9726 * We report the SCSI status as OK, since the status of the 9727 * request sense command itself is OK. 9728 */ 9729 ctsio->scsi_status = SCSI_STATUS_OK; 9730 9731 /* 9732 * We report 0 for the sense length, because we aren't doing 9733 * autosense in this case. We're reporting sense as 9734 * parameter data. 9735 */ 9736 ctsio->sense_len = 0; 9737 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9738 ctsio->be_move_done = ctl_config_move_done; 9739 ctl_datamove((union ctl_io *)ctsio); 9740 9741 return (CTL_RETVAL_COMPLETE); 9742 } 9743 9744no_sense: 9745 9746 /* 9747 * No sense information to report, so we report that everything is 9748 * okay. 9749 */ 9750 ctl_set_sense_data(sense_ptr, 9751 lun, 9752 sense_format, 9753 /*current_error*/ 1, 9754 /*sense_key*/ SSD_KEY_NO_SENSE, 9755 /*asc*/ 0x00, 9756 /*ascq*/ 0x00, 9757 SSD_ELEM_NONE); 9758 9759 ctsio->scsi_status = SCSI_STATUS_OK; 9760 9761 /* 9762 * We report 0 for the sense length, because we aren't doing 9763 * autosense in this case. We're reporting sense as parameter data. 9764 */ 9765 ctsio->sense_len = 0; 9766 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9767 ctsio->be_move_done = ctl_config_move_done; 9768 ctl_datamove((union ctl_io *)ctsio); 9769 9770 return (CTL_RETVAL_COMPLETE); 9771} 9772 9773int 9774ctl_tur(struct ctl_scsiio *ctsio) 9775{ 9776 struct ctl_lun *lun; 9777 9778 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9779 9780 CTL_DEBUG_PRINT(("ctl_tur\n")); 9781 9782 if (lun == NULL) 9783 return (EINVAL); 9784 9785 ctsio->scsi_status = SCSI_STATUS_OK; 9786 ctsio->io_hdr.status = CTL_SUCCESS; 9787 9788 ctl_done((union ctl_io *)ctsio); 9789 9790 return (CTL_RETVAL_COMPLETE); 9791} 9792 9793#ifdef notyet 9794static int 9795ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9796{ 9797 9798} 9799#endif 9800 9801static int 9802ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9803{ 9804 struct scsi_vpd_supported_pages *pages; 9805 int sup_page_size; 9806 struct ctl_lun *lun; 9807 9808 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9809 9810 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9811 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9812 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9813 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9814 ctsio->kern_sg_entries = 0; 9815 9816 if (sup_page_size < alloc_len) { 9817 ctsio->residual = alloc_len - sup_page_size; 9818 ctsio->kern_data_len = sup_page_size; 9819 ctsio->kern_total_len = sup_page_size; 9820 } else { 9821 ctsio->residual = 0; 9822 ctsio->kern_data_len = alloc_len; 9823 ctsio->kern_total_len = alloc_len; 9824 } 9825 ctsio->kern_data_resid = 0; 9826 ctsio->kern_rel_offset = 0; 9827 ctsio->kern_sg_entries = 0; 9828 9829 /* 9830 * The control device is always connected. The disk device, on the 9831 * other hand, may not be online all the time. Need to change this 9832 * to figure out whether the disk device is actually online or not. 9833 */ 9834 if (lun != NULL) 9835 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9836 lun->be_lun->lun_type; 9837 else 9838 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9839 9840 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9841 /* Supported VPD pages */ 9842 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9843 /* Serial Number */ 9844 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9845 /* Device Identification */ 9846 pages->page_list[2] = SVPD_DEVICE_ID; 9847 /* SCSI Ports */ 9848 pages->page_list[3] = SVPD_SCSI_PORTS; 9849 /* Third-party Copy */ 9850 pages->page_list[4] = SVPD_SCSI_TPC; 9851 /* Block limits */ 9852 pages->page_list[5] = SVPD_BLOCK_LIMITS; 9853 /* Block Device Characteristics */ 9854 pages->page_list[6] = SVPD_BDC; 9855 /* Logical Block Provisioning */ 9856 pages->page_list[7] = SVPD_LBP; 9857 9858 ctsio->scsi_status = SCSI_STATUS_OK; 9859 9860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9861 ctsio->be_move_done = ctl_config_move_done; 9862 ctl_datamove((union ctl_io *)ctsio); 9863 9864 return (CTL_RETVAL_COMPLETE); 9865} 9866 9867static int 9868ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9869{ 9870 struct scsi_vpd_unit_serial_number *sn_ptr; 9871 struct ctl_lun *lun; 9872 9873 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9874 9875 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9876 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9877 ctsio->kern_sg_entries = 0; 9878 9879 if (sizeof(*sn_ptr) < alloc_len) { 9880 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9881 ctsio->kern_data_len = sizeof(*sn_ptr); 9882 ctsio->kern_total_len = sizeof(*sn_ptr); 9883 } else { 9884 ctsio->residual = 0; 9885 ctsio->kern_data_len = alloc_len; 9886 ctsio->kern_total_len = alloc_len; 9887 } 9888 ctsio->kern_data_resid = 0; 9889 ctsio->kern_rel_offset = 0; 9890 ctsio->kern_sg_entries = 0; 9891 9892 /* 9893 * The control device is always connected. The disk device, on the 9894 * other hand, may not be online all the time. Need to change this 9895 * to figure out whether the disk device is actually online or not. 9896 */ 9897 if (lun != NULL) 9898 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9899 lun->be_lun->lun_type; 9900 else 9901 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9902 9903 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9904 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9905 /* 9906 * If we don't have a LUN, we just leave the serial number as 9907 * all spaces. 9908 */ 9909 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9910 if (lun != NULL) { 9911 strncpy((char *)sn_ptr->serial_num, 9912 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9913 } 9914 ctsio->scsi_status = SCSI_STATUS_OK; 9915 9916 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9917 ctsio->be_move_done = ctl_config_move_done; 9918 ctl_datamove((union ctl_io *)ctsio); 9919 9920 return (CTL_RETVAL_COMPLETE); 9921} 9922 9923 9924static int 9925ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9926{ 9927 struct scsi_vpd_device_id *devid_ptr; 9928 struct scsi_vpd_id_descriptor *desc; 9929 struct ctl_softc *ctl_softc; 9930 struct ctl_lun *lun; 9931 struct ctl_port *port; 9932 int data_len; 9933 uint8_t proto; 9934 9935 ctl_softc = control_softc; 9936 9937 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9938 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9939 9940 data_len = sizeof(struct scsi_vpd_device_id) + 9941 sizeof(struct scsi_vpd_id_descriptor) + 9942 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9943 sizeof(struct scsi_vpd_id_descriptor) + 9944 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9945 if (lun && lun->lun_devid) 9946 data_len += lun->lun_devid->len; 9947 if (port->port_devid) 9948 data_len += port->port_devid->len; 9949 if (port->target_devid) 9950 data_len += port->target_devid->len; 9951 9952 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9953 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9954 ctsio->kern_sg_entries = 0; 9955 9956 if (data_len < alloc_len) { 9957 ctsio->residual = alloc_len - data_len; 9958 ctsio->kern_data_len = data_len; 9959 ctsio->kern_total_len = data_len; 9960 } else { 9961 ctsio->residual = 0; 9962 ctsio->kern_data_len = alloc_len; 9963 ctsio->kern_total_len = alloc_len; 9964 } 9965 ctsio->kern_data_resid = 0; 9966 ctsio->kern_rel_offset = 0; 9967 ctsio->kern_sg_entries = 0; 9968 9969 /* 9970 * The control device is always connected. The disk device, on the 9971 * other hand, may not be online all the time. 9972 */ 9973 if (lun != NULL) 9974 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9975 lun->be_lun->lun_type; 9976 else 9977 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9978 devid_ptr->page_code = SVPD_DEVICE_ID; 9979 scsi_ulto2b(data_len - 4, devid_ptr->length); 9980 9981 if (port->port_type == CTL_PORT_FC) 9982 proto = SCSI_PROTO_FC << 4; 9983 else if (port->port_type == CTL_PORT_ISCSI) 9984 proto = SCSI_PROTO_ISCSI << 4; 9985 else 9986 proto = SCSI_PROTO_SPI << 4; 9987 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9988 9989 /* 9990 * We're using a LUN association here. i.e., this device ID is a 9991 * per-LUN identifier. 9992 */ 9993 if (lun && lun->lun_devid) { 9994 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9995 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9996 lun->lun_devid->len); 9997 } 9998 9999 /* 10000 * This is for the WWPN which is a port association. 10001 */ 10002 if (port->port_devid) { 10003 memcpy(desc, port->port_devid->data, port->port_devid->len); 10004 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10005 port->port_devid->len); 10006 } 10007 10008 /* 10009 * This is for the Relative Target Port(type 4h) identifier 10010 */ 10011 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10012 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10013 SVPD_ID_TYPE_RELTARG; 10014 desc->length = 4; 10015 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10016 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10017 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10018 10019 /* 10020 * This is for the Target Port Group(type 5h) identifier 10021 */ 10022 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10023 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10024 SVPD_ID_TYPE_TPORTGRP; 10025 desc->length = 4; 10026 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10027 &desc->identifier[2]); 10028 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10029 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10030 10031 /* 10032 * This is for the Target identifier 10033 */ 10034 if (port->target_devid) { 10035 memcpy(desc, port->target_devid->data, port->target_devid->len); 10036 } 10037 10038 ctsio->scsi_status = SCSI_STATUS_OK; 10039 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10040 ctsio->be_move_done = ctl_config_move_done; 10041 ctl_datamove((union ctl_io *)ctsio); 10042 10043 return (CTL_RETVAL_COMPLETE); 10044} 10045 10046static int 10047ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10048{ 10049 struct ctl_softc *softc = control_softc; 10050 struct scsi_vpd_scsi_ports *sp; 10051 struct scsi_vpd_port_designation *pd; 10052 struct scsi_vpd_port_designation_cont *pdc; 10053 struct ctl_lun *lun; 10054 struct ctl_port *port; 10055 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10056 int num_target_port_groups, single; 10057 10058 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10059 10060 single = ctl_is_single; 10061 if (single) 10062 num_target_port_groups = 1; 10063 else 10064 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10065 num_target_ports = 0; 10066 iid_len = 0; 10067 id_len = 0; 10068 mtx_lock(&softc->ctl_lock); 10069 STAILQ_FOREACH(port, &softc->port_list, links) { 10070 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10071 continue; 10072 if (lun != NULL && 10073 ctl_map_lun_back(port->targ_port, lun->lun) >= 10074 CTL_MAX_LUNS) 10075 continue; 10076 num_target_ports++; 10077 if (port->init_devid) 10078 iid_len += port->init_devid->len; 10079 if (port->port_devid) 10080 id_len += port->port_devid->len; 10081 } 10082 mtx_unlock(&softc->ctl_lock); 10083 10084 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10085 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10086 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10087 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10088 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10089 ctsio->kern_sg_entries = 0; 10090 10091 if (data_len < alloc_len) { 10092 ctsio->residual = alloc_len - data_len; 10093 ctsio->kern_data_len = data_len; 10094 ctsio->kern_total_len = data_len; 10095 } else { 10096 ctsio->residual = 0; 10097 ctsio->kern_data_len = alloc_len; 10098 ctsio->kern_total_len = alloc_len; 10099 } 10100 ctsio->kern_data_resid = 0; 10101 ctsio->kern_rel_offset = 0; 10102 ctsio->kern_sg_entries = 0; 10103 10104 /* 10105 * The control device is always connected. The disk device, on the 10106 * other hand, may not be online all the time. Need to change this 10107 * to figure out whether the disk device is actually online or not. 10108 */ 10109 if (lun != NULL) 10110 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10111 lun->be_lun->lun_type; 10112 else 10113 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10114 10115 sp->page_code = SVPD_SCSI_PORTS; 10116 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10117 sp->page_length); 10118 pd = &sp->design[0]; 10119 10120 mtx_lock(&softc->ctl_lock); 10121 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10122 pg = 0; 10123 else 10124 pg = 1; 10125 for (g = 0; g < num_target_port_groups; g++) { 10126 STAILQ_FOREACH(port, &softc->port_list, links) { 10127 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10128 continue; 10129 if (lun != NULL && 10130 ctl_map_lun_back(port->targ_port, lun->lun) >= 10131 CTL_MAX_LUNS) 10132 continue; 10133 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10134 scsi_ulto2b(p, pd->relative_port_id); 10135 if (port->init_devid && g == pg) { 10136 iid_len = port->init_devid->len; 10137 memcpy(pd->initiator_transportid, 10138 port->init_devid->data, port->init_devid->len); 10139 } else 10140 iid_len = 0; 10141 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10142 pdc = (struct scsi_vpd_port_designation_cont *) 10143 (&pd->initiator_transportid[iid_len]); 10144 if (port->port_devid && g == pg) { 10145 id_len = port->port_devid->len; 10146 memcpy(pdc->target_port_descriptors, 10147 port->port_devid->data, port->port_devid->len); 10148 } else 10149 id_len = 0; 10150 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10151 pd = (struct scsi_vpd_port_designation *) 10152 ((uint8_t *)pdc->target_port_descriptors + id_len); 10153 } 10154 } 10155 mtx_unlock(&softc->ctl_lock); 10156 10157 ctsio->scsi_status = SCSI_STATUS_OK; 10158 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10159 ctsio->be_move_done = ctl_config_move_done; 10160 ctl_datamove((union ctl_io *)ctsio); 10161 10162 return (CTL_RETVAL_COMPLETE); 10163} 10164 10165static int 10166ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10167{ 10168 struct scsi_vpd_block_limits *bl_ptr; 10169 struct ctl_lun *lun; 10170 int bs; 10171 10172 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10173 10174 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10175 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10176 ctsio->kern_sg_entries = 0; 10177 10178 if (sizeof(*bl_ptr) < alloc_len) { 10179 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10180 ctsio->kern_data_len = sizeof(*bl_ptr); 10181 ctsio->kern_total_len = sizeof(*bl_ptr); 10182 } else { 10183 ctsio->residual = 0; 10184 ctsio->kern_data_len = alloc_len; 10185 ctsio->kern_total_len = alloc_len; 10186 } 10187 ctsio->kern_data_resid = 0; 10188 ctsio->kern_rel_offset = 0; 10189 ctsio->kern_sg_entries = 0; 10190 10191 /* 10192 * The control device is always connected. The disk device, on the 10193 * other hand, may not be online all the time. Need to change this 10194 * to figure out whether the disk device is actually online or not. 10195 */ 10196 if (lun != NULL) 10197 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10198 lun->be_lun->lun_type; 10199 else 10200 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10201 10202 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10203 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10204 bl_ptr->max_cmp_write_len = 0xff; 10205 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10206 if (lun != NULL) { 10207 bs = lun->be_lun->blocksize; 10208 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10209 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10210 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10211 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10212 if (lun->be_lun->pblockexp != 0) { 10213 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10214 bl_ptr->opt_unmap_grain); 10215 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10216 bl_ptr->unmap_grain_align); 10217 } 10218 } 10219 } 10220 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10221 10222 ctsio->scsi_status = SCSI_STATUS_OK; 10223 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10224 ctsio->be_move_done = ctl_config_move_done; 10225 ctl_datamove((union ctl_io *)ctsio); 10226 10227 return (CTL_RETVAL_COMPLETE); 10228} 10229 10230static int 10231ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10232{ 10233 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10234 struct ctl_lun *lun; 10235 10236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10237 10238 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10239 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10240 ctsio->kern_sg_entries = 0; 10241 10242 if (sizeof(*bdc_ptr) < alloc_len) { 10243 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10244 ctsio->kern_data_len = sizeof(*bdc_ptr); 10245 ctsio->kern_total_len = sizeof(*bdc_ptr); 10246 } else { 10247 ctsio->residual = 0; 10248 ctsio->kern_data_len = alloc_len; 10249 ctsio->kern_total_len = alloc_len; 10250 } 10251 ctsio->kern_data_resid = 0; 10252 ctsio->kern_rel_offset = 0; 10253 ctsio->kern_sg_entries = 0; 10254 10255 /* 10256 * The control device is always connected. The disk device, on the 10257 * other hand, may not be online all the time. Need to change this 10258 * to figure out whether the disk device is actually online or not. 10259 */ 10260 if (lun != NULL) 10261 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10262 lun->be_lun->lun_type; 10263 else 10264 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10265 bdc_ptr->page_code = SVPD_BDC; 10266 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10267 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10268 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10269 10270 ctsio->scsi_status = SCSI_STATUS_OK; 10271 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10272 ctsio->be_move_done = ctl_config_move_done; 10273 ctl_datamove((union ctl_io *)ctsio); 10274 10275 return (CTL_RETVAL_COMPLETE); 10276} 10277 10278static int 10279ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10280{ 10281 struct scsi_vpd_logical_block_prov *lbp_ptr; 10282 struct ctl_lun *lun; 10283 10284 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10285 10286 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10287 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10288 ctsio->kern_sg_entries = 0; 10289 10290 if (sizeof(*lbp_ptr) < alloc_len) { 10291 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10292 ctsio->kern_data_len = sizeof(*lbp_ptr); 10293 ctsio->kern_total_len = sizeof(*lbp_ptr); 10294 } else { 10295 ctsio->residual = 0; 10296 ctsio->kern_data_len = alloc_len; 10297 ctsio->kern_total_len = alloc_len; 10298 } 10299 ctsio->kern_data_resid = 0; 10300 ctsio->kern_rel_offset = 0; 10301 ctsio->kern_sg_entries = 0; 10302 10303 /* 10304 * The control device is always connected. The disk device, on the 10305 * other hand, may not be online all the time. Need to change this 10306 * to figure out whether the disk device is actually online or not. 10307 */ 10308 if (lun != NULL) 10309 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10310 lun->be_lun->lun_type; 10311 else 10312 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10313 10314 lbp_ptr->page_code = SVPD_LBP; 10315 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10316 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10317 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10318 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10319 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10320 } 10321 10322 ctsio->scsi_status = SCSI_STATUS_OK; 10323 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10324 ctsio->be_move_done = ctl_config_move_done; 10325 ctl_datamove((union ctl_io *)ctsio); 10326 10327 return (CTL_RETVAL_COMPLETE); 10328} 10329 10330static int 10331ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10332{ 10333 struct scsi_inquiry *cdb; 10334 struct ctl_lun *lun; 10335 int alloc_len, retval; 10336 10337 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10338 cdb = (struct scsi_inquiry *)ctsio->cdb; 10339 10340 retval = CTL_RETVAL_COMPLETE; 10341 10342 alloc_len = scsi_2btoul(cdb->length); 10343 10344 switch (cdb->page_code) { 10345 case SVPD_SUPPORTED_PAGES: 10346 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10347 break; 10348 case SVPD_UNIT_SERIAL_NUMBER: 10349 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10350 break; 10351 case SVPD_DEVICE_ID: 10352 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10353 break; 10354 case SVPD_SCSI_PORTS: 10355 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10356 break; 10357 case SVPD_SCSI_TPC: 10358 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10359 break; 10360 case SVPD_BLOCK_LIMITS: 10361 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10362 break; 10363 case SVPD_BDC: 10364 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10365 break; 10366 case SVPD_LBP: 10367 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10368 break; 10369 default: 10370 ctl_set_invalid_field(ctsio, 10371 /*sks_valid*/ 1, 10372 /*command*/ 1, 10373 /*field*/ 2, 10374 /*bit_valid*/ 0, 10375 /*bit*/ 0); 10376 ctl_done((union ctl_io *)ctsio); 10377 retval = CTL_RETVAL_COMPLETE; 10378 break; 10379 } 10380 10381 return (retval); 10382} 10383 10384static int 10385ctl_inquiry_std(struct ctl_scsiio *ctsio) 10386{ 10387 struct scsi_inquiry_data *inq_ptr; 10388 struct scsi_inquiry *cdb; 10389 struct ctl_softc *ctl_softc; 10390 struct ctl_lun *lun; 10391 char *val; 10392 uint32_t alloc_len; 10393 ctl_port_type port_type; 10394 10395 ctl_softc = control_softc; 10396 10397 /* 10398 * Figure out whether we're talking to a Fibre Channel port or not. 10399 * We treat the ioctl front end, and any SCSI adapters, as packetized 10400 * SCSI front ends. 10401 */ 10402 port_type = ctl_softc->ctl_ports[ 10403 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10404 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10405 port_type = CTL_PORT_SCSI; 10406 10407 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10408 cdb = (struct scsi_inquiry *)ctsio->cdb; 10409 alloc_len = scsi_2btoul(cdb->length); 10410 10411 /* 10412 * We malloc the full inquiry data size here and fill it 10413 * in. If the user only asks for less, we'll give him 10414 * that much. 10415 */ 10416 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10417 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10418 ctsio->kern_sg_entries = 0; 10419 ctsio->kern_data_resid = 0; 10420 ctsio->kern_rel_offset = 0; 10421 10422 if (sizeof(*inq_ptr) < alloc_len) { 10423 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10424 ctsio->kern_data_len = sizeof(*inq_ptr); 10425 ctsio->kern_total_len = sizeof(*inq_ptr); 10426 } else { 10427 ctsio->residual = 0; 10428 ctsio->kern_data_len = alloc_len; 10429 ctsio->kern_total_len = alloc_len; 10430 } 10431 10432 /* 10433 * If we have a LUN configured, report it as connected. Otherwise, 10434 * report that it is offline or no device is supported, depending 10435 * on the value of inquiry_pq_no_lun. 10436 * 10437 * According to the spec (SPC-4 r34), the peripheral qualifier 10438 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10439 * 10440 * "A peripheral device having the specified peripheral device type 10441 * is not connected to this logical unit. However, the device 10442 * server is capable of supporting the specified peripheral device 10443 * type on this logical unit." 10444 * 10445 * According to the same spec, the peripheral qualifier 10446 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10447 * 10448 * "The device server is not capable of supporting a peripheral 10449 * device on this logical unit. For this peripheral qualifier the 10450 * peripheral device type shall be set to 1Fh. All other peripheral 10451 * device type values are reserved for this peripheral qualifier." 10452 * 10453 * Given the text, it would seem that we probably want to report that 10454 * the LUN is offline here. There is no LUN connected, but we can 10455 * support a LUN at the given LUN number. 10456 * 10457 * In the real world, though, it sounds like things are a little 10458 * different: 10459 * 10460 * - Linux, when presented with a LUN with the offline peripheral 10461 * qualifier, will create an sg driver instance for it. So when 10462 * you attach it to CTL, you wind up with a ton of sg driver 10463 * instances. (One for every LUN that Linux bothered to probe.) 10464 * Linux does this despite the fact that it issues a REPORT LUNs 10465 * to LUN 0 to get the inventory of supported LUNs. 10466 * 10467 * - There is other anecdotal evidence (from Emulex folks) about 10468 * arrays that use the offline peripheral qualifier for LUNs that 10469 * are on the "passive" path in an active/passive array. 10470 * 10471 * So the solution is provide a hopefully reasonable default 10472 * (return bad/no LUN) and allow the user to change the behavior 10473 * with a tunable/sysctl variable. 10474 */ 10475 if (lun != NULL) 10476 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10477 lun->be_lun->lun_type; 10478 else if (ctl_softc->inquiry_pq_no_lun == 0) 10479 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10480 else 10481 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10482 10483 /* RMB in byte 2 is 0 */ 10484 inq_ptr->version = SCSI_REV_SPC4; 10485 10486 /* 10487 * According to SAM-3, even if a device only supports a single 10488 * level of LUN addressing, it should still set the HISUP bit: 10489 * 10490 * 4.9.1 Logical unit numbers overview 10491 * 10492 * All logical unit number formats described in this standard are 10493 * hierarchical in structure even when only a single level in that 10494 * hierarchy is used. The HISUP bit shall be set to one in the 10495 * standard INQUIRY data (see SPC-2) when any logical unit number 10496 * format described in this standard is used. Non-hierarchical 10497 * formats are outside the scope of this standard. 10498 * 10499 * Therefore we set the HiSup bit here. 10500 * 10501 * The reponse format is 2, per SPC-3. 10502 */ 10503 inq_ptr->response_format = SID_HiSup | 2; 10504 10505 inq_ptr->additional_length = 10506 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10507 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10508 CTL_DEBUG_PRINT(("additional_length = %d\n", 10509 inq_ptr->additional_length)); 10510 10511 inq_ptr->spc3_flags = SPC3_SID_3PC; 10512 if (!ctl_is_single) 10513 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10514 /* 16 bit addressing */ 10515 if (port_type == CTL_PORT_SCSI) 10516 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10517 /* XXX set the SID_MultiP bit here if we're actually going to 10518 respond on multiple ports */ 10519 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10520 10521 /* 16 bit data bus, synchronous transfers */ 10522 if (port_type == CTL_PORT_SCSI) 10523 inq_ptr->flags = SID_WBus16 | SID_Sync; 10524 /* 10525 * XXX KDM do we want to support tagged queueing on the control 10526 * device at all? 10527 */ 10528 if ((lun == NULL) 10529 || (lun->be_lun->lun_type != T_PROCESSOR)) 10530 inq_ptr->flags |= SID_CmdQue; 10531 /* 10532 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10533 * We have 8 bytes for the vendor name, and 16 bytes for the device 10534 * name and 4 bytes for the revision. 10535 */ 10536 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10537 "vendor")) == NULL) { 10538 strcpy(inq_ptr->vendor, CTL_VENDOR); 10539 } else { 10540 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10541 strncpy(inq_ptr->vendor, val, 10542 min(sizeof(inq_ptr->vendor), strlen(val))); 10543 } 10544 if (lun == NULL) { 10545 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10546 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10547 switch (lun->be_lun->lun_type) { 10548 case T_DIRECT: 10549 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10550 break; 10551 case T_PROCESSOR: 10552 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10553 break; 10554 default: 10555 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10556 break; 10557 } 10558 } else { 10559 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10560 strncpy(inq_ptr->product, val, 10561 min(sizeof(inq_ptr->product), strlen(val))); 10562 } 10563 10564 /* 10565 * XXX make this a macro somewhere so it automatically gets 10566 * incremented when we make changes. 10567 */ 10568 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10569 "revision")) == NULL) { 10570 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10571 } else { 10572 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10573 strncpy(inq_ptr->revision, val, 10574 min(sizeof(inq_ptr->revision), strlen(val))); 10575 } 10576 10577 /* 10578 * For parallel SCSI, we support double transition and single 10579 * transition clocking. We also support QAS (Quick Arbitration 10580 * and Selection) and Information Unit transfers on both the 10581 * control and array devices. 10582 */ 10583 if (port_type == CTL_PORT_SCSI) 10584 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10585 SID_SPI_IUS; 10586 10587 /* SAM-5 (no version claimed) */ 10588 scsi_ulto2b(0x00A0, inq_ptr->version1); 10589 /* SPC-4 (no version claimed) */ 10590 scsi_ulto2b(0x0460, inq_ptr->version2); 10591 if (port_type == CTL_PORT_FC) { 10592 /* FCP-2 ANSI INCITS.350:2003 */ 10593 scsi_ulto2b(0x0917, inq_ptr->version3); 10594 } else if (port_type == CTL_PORT_SCSI) { 10595 /* SPI-4 ANSI INCITS.362:200x */ 10596 scsi_ulto2b(0x0B56, inq_ptr->version3); 10597 } else if (port_type == CTL_PORT_ISCSI) { 10598 /* iSCSI (no version claimed) */ 10599 scsi_ulto2b(0x0960, inq_ptr->version3); 10600 } else if (port_type == CTL_PORT_SAS) { 10601 /* SAS (no version claimed) */ 10602 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10603 } 10604 10605 if (lun == NULL) { 10606 /* SBC-3 (no version claimed) */ 10607 scsi_ulto2b(0x04C0, inq_ptr->version4); 10608 } else { 10609 switch (lun->be_lun->lun_type) { 10610 case T_DIRECT: 10611 /* SBC-3 (no version claimed) */ 10612 scsi_ulto2b(0x04C0, inq_ptr->version4); 10613 break; 10614 case T_PROCESSOR: 10615 default: 10616 break; 10617 } 10618 } 10619 10620 ctsio->scsi_status = SCSI_STATUS_OK; 10621 if (ctsio->kern_data_len > 0) { 10622 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10623 ctsio->be_move_done = ctl_config_move_done; 10624 ctl_datamove((union ctl_io *)ctsio); 10625 } else { 10626 ctsio->io_hdr.status = CTL_SUCCESS; 10627 ctl_done((union ctl_io *)ctsio); 10628 } 10629 10630 return (CTL_RETVAL_COMPLETE); 10631} 10632 10633int 10634ctl_inquiry(struct ctl_scsiio *ctsio) 10635{ 10636 struct scsi_inquiry *cdb; 10637 int retval; 10638 10639 cdb = (struct scsi_inquiry *)ctsio->cdb; 10640 10641 retval = 0; 10642 10643 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10644 10645 /* 10646 * Right now, we don't support the CmdDt inquiry information. 10647 * This would be nice to support in the future. When we do 10648 * support it, we should change this test so that it checks to make 10649 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10650 */ 10651#ifdef notyet 10652 if (((cdb->byte2 & SI_EVPD) 10653 && (cdb->byte2 & SI_CMDDT))) 10654#endif 10655 if (cdb->byte2 & SI_CMDDT) { 10656 /* 10657 * Point to the SI_CMDDT bit. We might change this 10658 * when we support SI_CMDDT, but since both bits would be 10659 * "wrong", this should probably just stay as-is then. 10660 */ 10661 ctl_set_invalid_field(ctsio, 10662 /*sks_valid*/ 1, 10663 /*command*/ 1, 10664 /*field*/ 1, 10665 /*bit_valid*/ 1, 10666 /*bit*/ 1); 10667 ctl_done((union ctl_io *)ctsio); 10668 return (CTL_RETVAL_COMPLETE); 10669 } 10670 if (cdb->byte2 & SI_EVPD) 10671 retval = ctl_inquiry_evpd(ctsio); 10672#ifdef notyet 10673 else if (cdb->byte2 & SI_CMDDT) 10674 retval = ctl_inquiry_cmddt(ctsio); 10675#endif 10676 else 10677 retval = ctl_inquiry_std(ctsio); 10678 10679 return (retval); 10680} 10681 10682/* 10683 * For known CDB types, parse the LBA and length. 10684 */ 10685static int 10686ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10687{ 10688 if (io->io_hdr.io_type != CTL_IO_SCSI) 10689 return (1); 10690 10691 switch (io->scsiio.cdb[0]) { 10692 case COMPARE_AND_WRITE: { 10693 struct scsi_compare_and_write *cdb; 10694 10695 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10696 10697 *lba = scsi_8btou64(cdb->addr); 10698 *len = cdb->length; 10699 break; 10700 } 10701 case READ_6: 10702 case WRITE_6: { 10703 struct scsi_rw_6 *cdb; 10704 10705 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10706 10707 *lba = scsi_3btoul(cdb->addr); 10708 /* only 5 bits are valid in the most significant address byte */ 10709 *lba &= 0x1fffff; 10710 *len = cdb->length; 10711 break; 10712 } 10713 case READ_10: 10714 case WRITE_10: { 10715 struct scsi_rw_10 *cdb; 10716 10717 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10718 10719 *lba = scsi_4btoul(cdb->addr); 10720 *len = scsi_2btoul(cdb->length); 10721 break; 10722 } 10723 case WRITE_VERIFY_10: { 10724 struct scsi_write_verify_10 *cdb; 10725 10726 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10727 10728 *lba = scsi_4btoul(cdb->addr); 10729 *len = scsi_2btoul(cdb->length); 10730 break; 10731 } 10732 case READ_12: 10733 case WRITE_12: { 10734 struct scsi_rw_12 *cdb; 10735 10736 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10737 10738 *lba = scsi_4btoul(cdb->addr); 10739 *len = scsi_4btoul(cdb->length); 10740 break; 10741 } 10742 case WRITE_VERIFY_12: { 10743 struct scsi_write_verify_12 *cdb; 10744 10745 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10746 10747 *lba = scsi_4btoul(cdb->addr); 10748 *len = scsi_4btoul(cdb->length); 10749 break; 10750 } 10751 case READ_16: 10752 case WRITE_16: { 10753 struct scsi_rw_16 *cdb; 10754 10755 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10756 10757 *lba = scsi_8btou64(cdb->addr); 10758 *len = scsi_4btoul(cdb->length); 10759 break; 10760 } 10761 case WRITE_VERIFY_16: { 10762 struct scsi_write_verify_16 *cdb; 10763 10764 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10765 10766 10767 *lba = scsi_8btou64(cdb->addr); 10768 *len = scsi_4btoul(cdb->length); 10769 break; 10770 } 10771 case WRITE_SAME_10: { 10772 struct scsi_write_same_10 *cdb; 10773 10774 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10775 10776 *lba = scsi_4btoul(cdb->addr); 10777 *len = scsi_2btoul(cdb->length); 10778 break; 10779 } 10780 case WRITE_SAME_16: { 10781 struct scsi_write_same_16 *cdb; 10782 10783 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10784 10785 *lba = scsi_8btou64(cdb->addr); 10786 *len = scsi_4btoul(cdb->length); 10787 break; 10788 } 10789 case VERIFY_10: { 10790 struct scsi_verify_10 *cdb; 10791 10792 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10793 10794 *lba = scsi_4btoul(cdb->addr); 10795 *len = scsi_2btoul(cdb->length); 10796 break; 10797 } 10798 case VERIFY_12: { 10799 struct scsi_verify_12 *cdb; 10800 10801 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10802 10803 *lba = scsi_4btoul(cdb->addr); 10804 *len = scsi_4btoul(cdb->length); 10805 break; 10806 } 10807 case VERIFY_16: { 10808 struct scsi_verify_16 *cdb; 10809 10810 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10811 10812 *lba = scsi_8btou64(cdb->addr); 10813 *len = scsi_4btoul(cdb->length); 10814 break; 10815 } 10816 default: 10817 return (1); 10818 break; /* NOTREACHED */ 10819 } 10820 10821 return (0); 10822} 10823 10824static ctl_action 10825ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10826{ 10827 uint64_t endlba1, endlba2; 10828 10829 endlba1 = lba1 + len1 - 1; 10830 endlba2 = lba2 + len2 - 1; 10831 10832 if ((endlba1 < lba2) 10833 || (endlba2 < lba1)) 10834 return (CTL_ACTION_PASS); 10835 else 10836 return (CTL_ACTION_BLOCK); 10837} 10838 10839static ctl_action 10840ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10841{ 10842 uint64_t lba1, lba2; 10843 uint32_t len1, len2; 10844 int retval; 10845 10846 retval = ctl_get_lba_len(io1, &lba1, &len1); 10847 if (retval != 0) 10848 return (CTL_ACTION_ERROR); 10849 10850 retval = ctl_get_lba_len(io2, &lba2, &len2); 10851 if (retval != 0) 10852 return (CTL_ACTION_ERROR); 10853 10854 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10855} 10856 10857static ctl_action 10858ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10859{ 10860 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10861 ctl_serialize_action *serialize_row; 10862 10863 /* 10864 * The initiator attempted multiple untagged commands at the same 10865 * time. Can't do that. 10866 */ 10867 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10868 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10869 && ((pending_io->io_hdr.nexus.targ_port == 10870 ooa_io->io_hdr.nexus.targ_port) 10871 && (pending_io->io_hdr.nexus.initid.id == 10872 ooa_io->io_hdr.nexus.initid.id)) 10873 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10874 return (CTL_ACTION_OVERLAP); 10875 10876 /* 10877 * The initiator attempted to send multiple tagged commands with 10878 * the same ID. (It's fine if different initiators have the same 10879 * tag ID.) 10880 * 10881 * Even if all of those conditions are true, we don't kill the I/O 10882 * if the command ahead of us has been aborted. We won't end up 10883 * sending it to the FETD, and it's perfectly legal to resend a 10884 * command with the same tag number as long as the previous 10885 * instance of this tag number has been aborted somehow. 10886 */ 10887 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10888 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10889 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10890 && ((pending_io->io_hdr.nexus.targ_port == 10891 ooa_io->io_hdr.nexus.targ_port) 10892 && (pending_io->io_hdr.nexus.initid.id == 10893 ooa_io->io_hdr.nexus.initid.id)) 10894 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10895 return (CTL_ACTION_OVERLAP_TAG); 10896 10897 /* 10898 * If we get a head of queue tag, SAM-3 says that we should 10899 * immediately execute it. 10900 * 10901 * What happens if this command would normally block for some other 10902 * reason? e.g. a request sense with a head of queue tag 10903 * immediately after a write. Normally that would block, but this 10904 * will result in its getting executed immediately... 10905 * 10906 * We currently return "pass" instead of "skip", so we'll end up 10907 * going through the rest of the queue to check for overlapped tags. 10908 * 10909 * XXX KDM check for other types of blockage first?? 10910 */ 10911 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10912 return (CTL_ACTION_PASS); 10913 10914 /* 10915 * Ordered tags have to block until all items ahead of them 10916 * have completed. If we get called with an ordered tag, we always 10917 * block, if something else is ahead of us in the queue. 10918 */ 10919 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10920 return (CTL_ACTION_BLOCK); 10921 10922 /* 10923 * Simple tags get blocked until all head of queue and ordered tags 10924 * ahead of them have completed. I'm lumping untagged commands in 10925 * with simple tags here. XXX KDM is that the right thing to do? 10926 */ 10927 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10928 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10929 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10930 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10931 return (CTL_ACTION_BLOCK); 10932 10933 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10934 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10935 10936 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10937 10938 switch (serialize_row[pending_entry->seridx]) { 10939 case CTL_SER_BLOCK: 10940 return (CTL_ACTION_BLOCK); 10941 break; /* NOTREACHED */ 10942 case CTL_SER_EXTENT: 10943 return (ctl_extent_check(pending_io, ooa_io)); 10944 break; /* NOTREACHED */ 10945 case CTL_SER_PASS: 10946 return (CTL_ACTION_PASS); 10947 break; /* NOTREACHED */ 10948 case CTL_SER_SKIP: 10949 return (CTL_ACTION_SKIP); 10950 break; 10951 default: 10952 panic("invalid serialization value %d", 10953 serialize_row[pending_entry->seridx]); 10954 break; /* NOTREACHED */ 10955 } 10956 10957 return (CTL_ACTION_ERROR); 10958} 10959 10960/* 10961 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10962 * Assumptions: 10963 * - pending_io is generally either incoming, or on the blocked queue 10964 * - starting I/O is the I/O we want to start the check with. 10965 */ 10966static ctl_action 10967ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10968 union ctl_io *starting_io) 10969{ 10970 union ctl_io *ooa_io; 10971 ctl_action action; 10972 10973 mtx_assert(&lun->lun_lock, MA_OWNED); 10974 10975 /* 10976 * Run back along the OOA queue, starting with the current 10977 * blocked I/O and going through every I/O before it on the 10978 * queue. If starting_io is NULL, we'll just end up returning 10979 * CTL_ACTION_PASS. 10980 */ 10981 for (ooa_io = starting_io; ooa_io != NULL; 10982 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10983 ooa_links)){ 10984 10985 /* 10986 * This routine just checks to see whether 10987 * cur_blocked is blocked by ooa_io, which is ahead 10988 * of it in the queue. It doesn't queue/dequeue 10989 * cur_blocked. 10990 */ 10991 action = ctl_check_for_blockage(pending_io, ooa_io); 10992 switch (action) { 10993 case CTL_ACTION_BLOCK: 10994 case CTL_ACTION_OVERLAP: 10995 case CTL_ACTION_OVERLAP_TAG: 10996 case CTL_ACTION_SKIP: 10997 case CTL_ACTION_ERROR: 10998 return (action); 10999 break; /* NOTREACHED */ 11000 case CTL_ACTION_PASS: 11001 break; 11002 default: 11003 panic("invalid action %d", action); 11004 break; /* NOTREACHED */ 11005 } 11006 } 11007 11008 return (CTL_ACTION_PASS); 11009} 11010 11011/* 11012 * Assumptions: 11013 * - An I/O has just completed, and has been removed from the per-LUN OOA 11014 * queue, so some items on the blocked queue may now be unblocked. 11015 */ 11016static int 11017ctl_check_blocked(struct ctl_lun *lun) 11018{ 11019 union ctl_io *cur_blocked, *next_blocked; 11020 11021 mtx_assert(&lun->lun_lock, MA_OWNED); 11022 11023 /* 11024 * Run forward from the head of the blocked queue, checking each 11025 * entry against the I/Os prior to it on the OOA queue to see if 11026 * there is still any blockage. 11027 * 11028 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11029 * with our removing a variable on it while it is traversing the 11030 * list. 11031 */ 11032 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11033 cur_blocked != NULL; cur_blocked = next_blocked) { 11034 union ctl_io *prev_ooa; 11035 ctl_action action; 11036 11037 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11038 blocked_links); 11039 11040 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11041 ctl_ooaq, ooa_links); 11042 11043 /* 11044 * If cur_blocked happens to be the first item in the OOA 11045 * queue now, prev_ooa will be NULL, and the action 11046 * returned will just be CTL_ACTION_PASS. 11047 */ 11048 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11049 11050 switch (action) { 11051 case CTL_ACTION_BLOCK: 11052 /* Nothing to do here, still blocked */ 11053 break; 11054 case CTL_ACTION_OVERLAP: 11055 case CTL_ACTION_OVERLAP_TAG: 11056 /* 11057 * This shouldn't happen! In theory we've already 11058 * checked this command for overlap... 11059 */ 11060 break; 11061 case CTL_ACTION_PASS: 11062 case CTL_ACTION_SKIP: { 11063 struct ctl_softc *softc; 11064 const struct ctl_cmd_entry *entry; 11065 uint32_t initidx; 11066 int isc_retval; 11067 11068 /* 11069 * The skip case shouldn't happen, this transaction 11070 * should have never made it onto the blocked queue. 11071 */ 11072 /* 11073 * This I/O is no longer blocked, we can remove it 11074 * from the blocked queue. Since this is a TAILQ 11075 * (doubly linked list), we can do O(1) removals 11076 * from any place on the list. 11077 */ 11078 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11079 blocked_links); 11080 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11081 11082 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11083 /* 11084 * Need to send IO back to original side to 11085 * run 11086 */ 11087 union ctl_ha_msg msg_info; 11088 11089 msg_info.hdr.original_sc = 11090 cur_blocked->io_hdr.original_sc; 11091 msg_info.hdr.serializing_sc = cur_blocked; 11092 msg_info.hdr.msg_type = CTL_MSG_R2R; 11093 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11094 &msg_info, sizeof(msg_info), 0)) > 11095 CTL_HA_STATUS_SUCCESS) { 11096 printf("CTL:Check Blocked error from " 11097 "ctl_ha_msg_send %d\n", 11098 isc_retval); 11099 } 11100 break; 11101 } 11102 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11103 softc = control_softc; 11104 11105 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11106 11107 /* 11108 * Check this I/O for LUN state changes that may 11109 * have happened while this command was blocked. 11110 * The LUN state may have been changed by a command 11111 * ahead of us in the queue, so we need to re-check 11112 * for any states that can be caused by SCSI 11113 * commands. 11114 */ 11115 if (ctl_scsiio_lun_check(softc, lun, entry, 11116 &cur_blocked->scsiio) == 0) { 11117 cur_blocked->io_hdr.flags |= 11118 CTL_FLAG_IS_WAS_ON_RTR; 11119 ctl_enqueue_rtr(cur_blocked); 11120 } else 11121 ctl_done(cur_blocked); 11122 break; 11123 } 11124 default: 11125 /* 11126 * This probably shouldn't happen -- we shouldn't 11127 * get CTL_ACTION_ERROR, or anything else. 11128 */ 11129 break; 11130 } 11131 } 11132 11133 return (CTL_RETVAL_COMPLETE); 11134} 11135 11136/* 11137 * This routine (with one exception) checks LUN flags that can be set by 11138 * commands ahead of us in the OOA queue. These flags have to be checked 11139 * when a command initially comes in, and when we pull a command off the 11140 * blocked queue and are preparing to execute it. The reason we have to 11141 * check these flags for commands on the blocked queue is that the LUN 11142 * state may have been changed by a command ahead of us while we're on the 11143 * blocked queue. 11144 * 11145 * Ordering is somewhat important with these checks, so please pay 11146 * careful attention to the placement of any new checks. 11147 */ 11148static int 11149ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11150 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11151{ 11152 int retval; 11153 11154 retval = 0; 11155 11156 mtx_assert(&lun->lun_lock, MA_OWNED); 11157 11158 /* 11159 * If this shelf is a secondary shelf controller, we have to reject 11160 * any media access commands. 11161 */ 11162#if 0 11163 /* No longer needed for HA */ 11164 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11165 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11166 ctl_set_lun_standby(ctsio); 11167 retval = 1; 11168 goto bailout; 11169 } 11170#endif 11171 11172 /* 11173 * Check for a reservation conflict. If this command isn't allowed 11174 * even on reserved LUNs, and if this initiator isn't the one who 11175 * reserved us, reject the command with a reservation conflict. 11176 */ 11177 if ((lun->flags & CTL_LUN_RESERVED) 11178 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11179 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11180 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11181 || (ctsio->io_hdr.nexus.targ_target.id != 11182 lun->rsv_nexus.targ_target.id)) { 11183 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11184 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11185 retval = 1; 11186 goto bailout; 11187 } 11188 } 11189 11190 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11191 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11192 uint32_t residx; 11193 11194 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11195 /* 11196 * if we aren't registered or it's a res holder type 11197 * reservation and this isn't the res holder then set a 11198 * conflict. 11199 * NOTE: Commands which might be allowed on write exclusive 11200 * type reservations are checked in the particular command 11201 * for a conflict. Read and SSU are the only ones. 11202 */ 11203 if (!lun->per_res[residx].registered 11204 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11205 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11206 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11207 retval = 1; 11208 goto bailout; 11209 } 11210 11211 } 11212 11213 if ((lun->flags & CTL_LUN_OFFLINE) 11214 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11215 ctl_set_lun_not_ready(ctsio); 11216 retval = 1; 11217 goto bailout; 11218 } 11219 11220 /* 11221 * If the LUN is stopped, see if this particular command is allowed 11222 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11223 */ 11224 if ((lun->flags & CTL_LUN_STOPPED) 11225 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11226 /* "Logical unit not ready, initializing cmd. required" */ 11227 ctl_set_lun_stopped(ctsio); 11228 retval = 1; 11229 goto bailout; 11230 } 11231 11232 if ((lun->flags & CTL_LUN_INOPERABLE) 11233 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11234 /* "Medium format corrupted" */ 11235 ctl_set_medium_format_corrupted(ctsio); 11236 retval = 1; 11237 goto bailout; 11238 } 11239 11240bailout: 11241 return (retval); 11242 11243} 11244 11245static void 11246ctl_failover_io(union ctl_io *io, int have_lock) 11247{ 11248 ctl_set_busy(&io->scsiio); 11249 ctl_done(io); 11250} 11251 11252static void 11253ctl_failover(void) 11254{ 11255 struct ctl_lun *lun; 11256 struct ctl_softc *ctl_softc; 11257 union ctl_io *next_io, *pending_io; 11258 union ctl_io *io; 11259 int lun_idx; 11260 int i; 11261 11262 ctl_softc = control_softc; 11263 11264 mtx_lock(&ctl_softc->ctl_lock); 11265 /* 11266 * Remove any cmds from the other SC from the rtr queue. These 11267 * will obviously only be for LUNs for which we're the primary. 11268 * We can't send status or get/send data for these commands. 11269 * Since they haven't been executed yet, we can just remove them. 11270 * We'll either abort them or delete them below, depending on 11271 * which HA mode we're in. 11272 */ 11273#ifdef notyet 11274 mtx_lock(&ctl_softc->queue_lock); 11275 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11276 io != NULL; io = next_io) { 11277 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11278 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11279 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11280 ctl_io_hdr, links); 11281 } 11282 mtx_unlock(&ctl_softc->queue_lock); 11283#endif 11284 11285 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11286 lun = ctl_softc->ctl_luns[lun_idx]; 11287 if (lun==NULL) 11288 continue; 11289 11290 /* 11291 * Processor LUNs are primary on both sides. 11292 * XXX will this always be true? 11293 */ 11294 if (lun->be_lun->lun_type == T_PROCESSOR) 11295 continue; 11296 11297 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11298 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11299 printf("FAILOVER: primary lun %d\n", lun_idx); 11300 /* 11301 * Remove all commands from the other SC. First from the 11302 * blocked queue then from the ooa queue. Once we have 11303 * removed them. Call ctl_check_blocked to see if there 11304 * is anything that can run. 11305 */ 11306 for (io = (union ctl_io *)TAILQ_FIRST( 11307 &lun->blocked_queue); io != NULL; io = next_io) { 11308 11309 next_io = (union ctl_io *)TAILQ_NEXT( 11310 &io->io_hdr, blocked_links); 11311 11312 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11313 TAILQ_REMOVE(&lun->blocked_queue, 11314 &io->io_hdr,blocked_links); 11315 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11316 TAILQ_REMOVE(&lun->ooa_queue, 11317 &io->io_hdr, ooa_links); 11318 11319 ctl_free_io(io); 11320 } 11321 } 11322 11323 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11324 io != NULL; io = next_io) { 11325 11326 next_io = (union ctl_io *)TAILQ_NEXT( 11327 &io->io_hdr, ooa_links); 11328 11329 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11330 11331 TAILQ_REMOVE(&lun->ooa_queue, 11332 &io->io_hdr, 11333 ooa_links); 11334 11335 ctl_free_io(io); 11336 } 11337 } 11338 ctl_check_blocked(lun); 11339 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11340 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11341 11342 printf("FAILOVER: primary lun %d\n", lun_idx); 11343 /* 11344 * Abort all commands from the other SC. We can't 11345 * send status back for them now. These should get 11346 * cleaned up when they are completed or come out 11347 * for a datamove operation. 11348 */ 11349 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11350 io != NULL; io = next_io) { 11351 next_io = (union ctl_io *)TAILQ_NEXT( 11352 &io->io_hdr, ooa_links); 11353 11354 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11355 io->io_hdr.flags |= CTL_FLAG_ABORT; 11356 } 11357 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11358 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11359 11360 printf("FAILOVER: secondary lun %d\n", lun_idx); 11361 11362 lun->flags |= CTL_LUN_PRIMARY_SC; 11363 11364 /* 11365 * We send all I/O that was sent to this controller 11366 * and redirected to the other side back with 11367 * busy status, and have the initiator retry it. 11368 * Figuring out how much data has been transferred, 11369 * etc. and picking up where we left off would be 11370 * very tricky. 11371 * 11372 * XXX KDM need to remove I/O from the blocked 11373 * queue as well! 11374 */ 11375 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11376 &lun->ooa_queue); pending_io != NULL; 11377 pending_io = next_io) { 11378 11379 next_io = (union ctl_io *)TAILQ_NEXT( 11380 &pending_io->io_hdr, ooa_links); 11381 11382 pending_io->io_hdr.flags &= 11383 ~CTL_FLAG_SENT_2OTHER_SC; 11384 11385 if (pending_io->io_hdr.flags & 11386 CTL_FLAG_IO_ACTIVE) { 11387 pending_io->io_hdr.flags |= 11388 CTL_FLAG_FAILOVER; 11389 } else { 11390 ctl_set_busy(&pending_io->scsiio); 11391 ctl_done(pending_io); 11392 } 11393 } 11394 11395 /* 11396 * Build Unit Attention 11397 */ 11398 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11399 lun->pending_ua[i] |= 11400 CTL_UA_ASYM_ACC_CHANGE; 11401 } 11402 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11403 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11404 printf("FAILOVER: secondary lun %d\n", lun_idx); 11405 /* 11406 * if the first io on the OOA is not on the RtR queue 11407 * add it. 11408 */ 11409 lun->flags |= CTL_LUN_PRIMARY_SC; 11410 11411 pending_io = (union ctl_io *)TAILQ_FIRST( 11412 &lun->ooa_queue); 11413 if (pending_io==NULL) { 11414 printf("Nothing on OOA queue\n"); 11415 continue; 11416 } 11417 11418 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11419 if ((pending_io->io_hdr.flags & 11420 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11421 pending_io->io_hdr.flags |= 11422 CTL_FLAG_IS_WAS_ON_RTR; 11423 ctl_enqueue_rtr(pending_io); 11424 } 11425#if 0 11426 else 11427 { 11428 printf("Tag 0x%04x is running\n", 11429 pending_io->scsiio.tag_num); 11430 } 11431#endif 11432 11433 next_io = (union ctl_io *)TAILQ_NEXT( 11434 &pending_io->io_hdr, ooa_links); 11435 for (pending_io=next_io; pending_io != NULL; 11436 pending_io = next_io) { 11437 pending_io->io_hdr.flags &= 11438 ~CTL_FLAG_SENT_2OTHER_SC; 11439 next_io = (union ctl_io *)TAILQ_NEXT( 11440 &pending_io->io_hdr, ooa_links); 11441 if (pending_io->io_hdr.flags & 11442 CTL_FLAG_IS_WAS_ON_RTR) { 11443#if 0 11444 printf("Tag 0x%04x is running\n", 11445 pending_io->scsiio.tag_num); 11446#endif 11447 continue; 11448 } 11449 11450 switch (ctl_check_ooa(lun, pending_io, 11451 (union ctl_io *)TAILQ_PREV( 11452 &pending_io->io_hdr, ctl_ooaq, 11453 ooa_links))) { 11454 11455 case CTL_ACTION_BLOCK: 11456 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11457 &pending_io->io_hdr, 11458 blocked_links); 11459 pending_io->io_hdr.flags |= 11460 CTL_FLAG_BLOCKED; 11461 break; 11462 case CTL_ACTION_PASS: 11463 case CTL_ACTION_SKIP: 11464 pending_io->io_hdr.flags |= 11465 CTL_FLAG_IS_WAS_ON_RTR; 11466 ctl_enqueue_rtr(pending_io); 11467 break; 11468 case CTL_ACTION_OVERLAP: 11469 ctl_set_overlapped_cmd( 11470 (struct ctl_scsiio *)pending_io); 11471 ctl_done(pending_io); 11472 break; 11473 case CTL_ACTION_OVERLAP_TAG: 11474 ctl_set_overlapped_tag( 11475 (struct ctl_scsiio *)pending_io, 11476 pending_io->scsiio.tag_num & 0xff); 11477 ctl_done(pending_io); 11478 break; 11479 case CTL_ACTION_ERROR: 11480 default: 11481 ctl_set_internal_failure( 11482 (struct ctl_scsiio *)pending_io, 11483 0, // sks_valid 11484 0); //retry count 11485 ctl_done(pending_io); 11486 break; 11487 } 11488 } 11489 11490 /* 11491 * Build Unit Attention 11492 */ 11493 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11494 lun->pending_ua[i] |= 11495 CTL_UA_ASYM_ACC_CHANGE; 11496 } 11497 } else { 11498 panic("Unhandled HA mode failover, LUN flags = %#x, " 11499 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11500 } 11501 } 11502 ctl_pause_rtr = 0; 11503 mtx_unlock(&ctl_softc->ctl_lock); 11504} 11505 11506static int 11507ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11508{ 11509 struct ctl_lun *lun; 11510 const struct ctl_cmd_entry *entry; 11511 uint32_t initidx, targ_lun; 11512 int retval; 11513 11514 retval = 0; 11515 11516 lun = NULL; 11517 11518 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11519 if ((targ_lun < CTL_MAX_LUNS) 11520 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11521 lun = ctl_softc->ctl_luns[targ_lun]; 11522 /* 11523 * If the LUN is invalid, pretend that it doesn't exist. 11524 * It will go away as soon as all pending I/O has been 11525 * completed. 11526 */ 11527 if (lun->flags & CTL_LUN_DISABLED) { 11528 lun = NULL; 11529 } else { 11530 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11531 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11532 lun->be_lun; 11533 if (lun->be_lun->lun_type == T_PROCESSOR) { 11534 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11535 } 11536 11537 /* 11538 * Every I/O goes into the OOA queue for a 11539 * particular LUN, and stays there until completion. 11540 */ 11541 mtx_lock(&lun->lun_lock); 11542 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11543 ooa_links); 11544 } 11545 } else { 11546 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11547 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11548 } 11549 11550 /* Get command entry and return error if it is unsuppotyed. */ 11551 entry = ctl_validate_command(ctsio); 11552 if (entry == NULL) { 11553 if (lun) 11554 mtx_unlock(&lun->lun_lock); 11555 return (retval); 11556 } 11557 11558 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11559 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11560 11561 /* 11562 * Check to see whether we can send this command to LUNs that don't 11563 * exist. This should pretty much only be the case for inquiry 11564 * and request sense. Further checks, below, really require having 11565 * a LUN, so we can't really check the command anymore. Just put 11566 * it on the rtr queue. 11567 */ 11568 if (lun == NULL) { 11569 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11570 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11571 ctl_enqueue_rtr((union ctl_io *)ctsio); 11572 return (retval); 11573 } 11574 11575 ctl_set_unsupported_lun(ctsio); 11576 ctl_done((union ctl_io *)ctsio); 11577 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11578 return (retval); 11579 } else { 11580 /* 11581 * Make sure we support this particular command on this LUN. 11582 * e.g., we don't support writes to the control LUN. 11583 */ 11584 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11585 mtx_unlock(&lun->lun_lock); 11586 ctl_set_invalid_opcode(ctsio); 11587 ctl_done((union ctl_io *)ctsio); 11588 return (retval); 11589 } 11590 } 11591 11592 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11593 11594#ifdef CTL_WITH_CA 11595 /* 11596 * If we've got a request sense, it'll clear the contingent 11597 * allegiance condition. Otherwise, if we have a CA condition for 11598 * this initiator, clear it, because it sent down a command other 11599 * than request sense. 11600 */ 11601 if ((ctsio->cdb[0] != REQUEST_SENSE) 11602 && (ctl_is_set(lun->have_ca, initidx))) 11603 ctl_clear_mask(lun->have_ca, initidx); 11604#endif 11605 11606 /* 11607 * If the command has this flag set, it handles its own unit 11608 * attention reporting, we shouldn't do anything. Otherwise we 11609 * check for any pending unit attentions, and send them back to the 11610 * initiator. We only do this when a command initially comes in, 11611 * not when we pull it off the blocked queue. 11612 * 11613 * According to SAM-3, section 5.3.2, the order that things get 11614 * presented back to the host is basically unit attentions caused 11615 * by some sort of reset event, busy status, reservation conflicts 11616 * or task set full, and finally any other status. 11617 * 11618 * One issue here is that some of the unit attentions we report 11619 * don't fall into the "reset" category (e.g. "reported luns data 11620 * has changed"). So reporting it here, before the reservation 11621 * check, may be technically wrong. I guess the only thing to do 11622 * would be to check for and report the reset events here, and then 11623 * check for the other unit attention types after we check for a 11624 * reservation conflict. 11625 * 11626 * XXX KDM need to fix this 11627 */ 11628 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11629 ctl_ua_type ua_type; 11630 11631 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11632 scsi_sense_data_type sense_format; 11633 11634 if (lun != NULL) 11635 sense_format = (lun->flags & 11636 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11637 SSD_TYPE_FIXED; 11638 else 11639 sense_format = SSD_TYPE_FIXED; 11640 11641 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11642 &ctsio->sense_data, sense_format); 11643 if (ua_type != CTL_UA_NONE) { 11644 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11645 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11646 CTL_AUTOSENSE; 11647 ctsio->sense_len = SSD_FULL_SIZE; 11648 mtx_unlock(&lun->lun_lock); 11649 ctl_done((union ctl_io *)ctsio); 11650 return (retval); 11651 } 11652 } 11653 } 11654 11655 11656 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11657 mtx_unlock(&lun->lun_lock); 11658 ctl_done((union ctl_io *)ctsio); 11659 return (retval); 11660 } 11661 11662 /* 11663 * XXX CHD this is where we want to send IO to other side if 11664 * this LUN is secondary on this SC. We will need to make a copy 11665 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11666 * the copy we send as FROM_OTHER. 11667 * We also need to stuff the address of the original IO so we can 11668 * find it easily. Something similar will need be done on the other 11669 * side so when we are done we can find the copy. 11670 */ 11671 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11672 union ctl_ha_msg msg_info; 11673 int isc_retval; 11674 11675 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11676 11677 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11678 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11679#if 0 11680 printf("1. ctsio %p\n", ctsio); 11681#endif 11682 msg_info.hdr.serializing_sc = NULL; 11683 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11684 msg_info.scsi.tag_num = ctsio->tag_num; 11685 msg_info.scsi.tag_type = ctsio->tag_type; 11686 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11687 11688 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11689 11690 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11691 (void *)&msg_info, sizeof(msg_info), 0)) > 11692 CTL_HA_STATUS_SUCCESS) { 11693 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11694 isc_retval); 11695 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11696 } else { 11697#if 0 11698 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11699#endif 11700 } 11701 11702 /* 11703 * XXX KDM this I/O is off the incoming queue, but hasn't 11704 * been inserted on any other queue. We may need to come 11705 * up with a holding queue while we wait for serialization 11706 * so that we have an idea of what we're waiting for from 11707 * the other side. 11708 */ 11709 mtx_unlock(&lun->lun_lock); 11710 return (retval); 11711 } 11712 11713 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11714 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11715 ctl_ooaq, ooa_links))) { 11716 case CTL_ACTION_BLOCK: 11717 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11718 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11719 blocked_links); 11720 mtx_unlock(&lun->lun_lock); 11721 return (retval); 11722 case CTL_ACTION_PASS: 11723 case CTL_ACTION_SKIP: 11724 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11725 mtx_unlock(&lun->lun_lock); 11726 ctl_enqueue_rtr((union ctl_io *)ctsio); 11727 break; 11728 case CTL_ACTION_OVERLAP: 11729 mtx_unlock(&lun->lun_lock); 11730 ctl_set_overlapped_cmd(ctsio); 11731 ctl_done((union ctl_io *)ctsio); 11732 break; 11733 case CTL_ACTION_OVERLAP_TAG: 11734 mtx_unlock(&lun->lun_lock); 11735 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11736 ctl_done((union ctl_io *)ctsio); 11737 break; 11738 case CTL_ACTION_ERROR: 11739 default: 11740 mtx_unlock(&lun->lun_lock); 11741 ctl_set_internal_failure(ctsio, 11742 /*sks_valid*/ 0, 11743 /*retry_count*/ 0); 11744 ctl_done((union ctl_io *)ctsio); 11745 break; 11746 } 11747 return (retval); 11748} 11749 11750const struct ctl_cmd_entry * 11751ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11752{ 11753 const struct ctl_cmd_entry *entry; 11754 int service_action; 11755 11756 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11757 if (entry->flags & CTL_CMD_FLAG_SA5) { 11758 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11759 entry = &((const struct ctl_cmd_entry *) 11760 entry->execute)[service_action]; 11761 } 11762 return (entry); 11763} 11764 11765const struct ctl_cmd_entry * 11766ctl_validate_command(struct ctl_scsiio *ctsio) 11767{ 11768 const struct ctl_cmd_entry *entry; 11769 int i; 11770 uint8_t diff; 11771 11772 entry = ctl_get_cmd_entry(ctsio); 11773 if (entry->execute == NULL) { 11774 ctl_set_invalid_opcode(ctsio); 11775 ctl_done((union ctl_io *)ctsio); 11776 return (NULL); 11777 } 11778 KASSERT(entry->length > 0, 11779 ("Not defined length for command 0x%02x/0x%02x", 11780 ctsio->cdb[0], ctsio->cdb[1])); 11781 for (i = 1; i < entry->length; i++) { 11782 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11783 if (diff == 0) 11784 continue; 11785 ctl_set_invalid_field(ctsio, 11786 /*sks_valid*/ 1, 11787 /*command*/ 1, 11788 /*field*/ i, 11789 /*bit_valid*/ 1, 11790 /*bit*/ fls(diff) - 1); 11791 ctl_done((union ctl_io *)ctsio); 11792 return (NULL); 11793 } 11794 return (entry); 11795} 11796 11797static int 11798ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11799{ 11800 11801 switch (lun_type) { 11802 case T_PROCESSOR: 11803 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11804 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11805 return (0); 11806 break; 11807 case T_DIRECT: 11808 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11809 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11810 return (0); 11811 break; 11812 default: 11813 return (0); 11814 } 11815 return (1); 11816} 11817 11818static int 11819ctl_scsiio(struct ctl_scsiio *ctsio) 11820{ 11821 int retval; 11822 const struct ctl_cmd_entry *entry; 11823 11824 retval = CTL_RETVAL_COMPLETE; 11825 11826 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11827 11828 entry = ctl_get_cmd_entry(ctsio); 11829 11830 /* 11831 * If this I/O has been aborted, just send it straight to 11832 * ctl_done() without executing it. 11833 */ 11834 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11835 ctl_done((union ctl_io *)ctsio); 11836 goto bailout; 11837 } 11838 11839 /* 11840 * All the checks should have been handled by ctl_scsiio_precheck(). 11841 * We should be clear now to just execute the I/O. 11842 */ 11843 retval = entry->execute(ctsio); 11844 11845bailout: 11846 return (retval); 11847} 11848 11849/* 11850 * Since we only implement one target right now, a bus reset simply resets 11851 * our single target. 11852 */ 11853static int 11854ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11855{ 11856 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11857} 11858 11859static int 11860ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11861 ctl_ua_type ua_type) 11862{ 11863 struct ctl_lun *lun; 11864 int retval; 11865 11866 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11867 union ctl_ha_msg msg_info; 11868 11869 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11870 msg_info.hdr.nexus = io->io_hdr.nexus; 11871 if (ua_type==CTL_UA_TARG_RESET) 11872 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11873 else 11874 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11875 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11876 msg_info.hdr.original_sc = NULL; 11877 msg_info.hdr.serializing_sc = NULL; 11878 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11879 (void *)&msg_info, sizeof(msg_info), 0)) { 11880 } 11881 } 11882 retval = 0; 11883 11884 mtx_lock(&ctl_softc->ctl_lock); 11885 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11886 retval += ctl_lun_reset(lun, io, ua_type); 11887 mtx_unlock(&ctl_softc->ctl_lock); 11888 11889 return (retval); 11890} 11891 11892/* 11893 * The LUN should always be set. The I/O is optional, and is used to 11894 * distinguish between I/Os sent by this initiator, and by other 11895 * initiators. We set unit attention for initiators other than this one. 11896 * SAM-3 is vague on this point. It does say that a unit attention should 11897 * be established for other initiators when a LUN is reset (see section 11898 * 5.7.3), but it doesn't specifically say that the unit attention should 11899 * be established for this particular initiator when a LUN is reset. Here 11900 * is the relevant text, from SAM-3 rev 8: 11901 * 11902 * 5.7.2 When a SCSI initiator port aborts its own tasks 11903 * 11904 * When a SCSI initiator port causes its own task(s) to be aborted, no 11905 * notification that the task(s) have been aborted shall be returned to 11906 * the SCSI initiator port other than the completion response for the 11907 * command or task management function action that caused the task(s) to 11908 * be aborted and notification(s) associated with related effects of the 11909 * action (e.g., a reset unit attention condition). 11910 * 11911 * XXX KDM for now, we're setting unit attention for all initiators. 11912 */ 11913static int 11914ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11915{ 11916 union ctl_io *xio; 11917#if 0 11918 uint32_t initindex; 11919#endif 11920 int i; 11921 11922 mtx_lock(&lun->lun_lock); 11923 /* 11924 * Run through the OOA queue and abort each I/O. 11925 */ 11926#if 0 11927 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11928#endif 11929 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11930 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11931 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11932 } 11933 11934 /* 11935 * This version sets unit attention for every 11936 */ 11937#if 0 11938 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11939 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11940 if (initindex == i) 11941 continue; 11942 lun->pending_ua[i] |= ua_type; 11943 } 11944#endif 11945 11946 /* 11947 * A reset (any kind, really) clears reservations established with 11948 * RESERVE/RELEASE. It does not clear reservations established 11949 * with PERSISTENT RESERVE OUT, but we don't support that at the 11950 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11951 * reservations made with the RESERVE/RELEASE commands, because 11952 * those commands are obsolete in SPC-3. 11953 */ 11954 lun->flags &= ~CTL_LUN_RESERVED; 11955 11956 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11957#ifdef CTL_WITH_CA 11958 ctl_clear_mask(lun->have_ca, i); 11959#endif 11960 lun->pending_ua[i] |= ua_type; 11961 } 11962 mtx_unlock(&lun->lun_lock); 11963 11964 return (0); 11965} 11966 11967static int 11968ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11969 int other_sc) 11970{ 11971 union ctl_io *xio; 11972 int found; 11973 11974 mtx_assert(&lun->lun_lock, MA_OWNED); 11975 11976 /* 11977 * Run through the OOA queue and attempt to find the given I/O. 11978 * The target port, initiator ID, tag type and tag number have to 11979 * match the values that we got from the initiator. If we have an 11980 * untagged command to abort, simply abort the first untagged command 11981 * we come to. We only allow one untagged command at a time of course. 11982 */ 11983 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11984 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11985 11986 if ((targ_port == UINT32_MAX || 11987 targ_port == xio->io_hdr.nexus.targ_port) && 11988 (init_id == UINT32_MAX || 11989 init_id == xio->io_hdr.nexus.initid.id)) { 11990 if (targ_port != xio->io_hdr.nexus.targ_port || 11991 init_id != xio->io_hdr.nexus.initid.id) 11992 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11993 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11994 found = 1; 11995 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11996 union ctl_ha_msg msg_info; 11997 11998 msg_info.hdr.nexus = xio->io_hdr.nexus; 11999 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12000 msg_info.task.tag_num = xio->scsiio.tag_num; 12001 msg_info.task.tag_type = xio->scsiio.tag_type; 12002 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12003 msg_info.hdr.original_sc = NULL; 12004 msg_info.hdr.serializing_sc = NULL; 12005 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12006 (void *)&msg_info, sizeof(msg_info), 0); 12007 } 12008 } 12009 } 12010 return (found); 12011} 12012 12013static int 12014ctl_abort_task_set(union ctl_io *io) 12015{ 12016 struct ctl_softc *softc = control_softc; 12017 struct ctl_lun *lun; 12018 uint32_t targ_lun; 12019 12020 /* 12021 * Look up the LUN. 12022 */ 12023 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12024 mtx_lock(&softc->ctl_lock); 12025 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12026 lun = softc->ctl_luns[targ_lun]; 12027 else { 12028 mtx_unlock(&softc->ctl_lock); 12029 return (1); 12030 } 12031 12032 mtx_lock(&lun->lun_lock); 12033 mtx_unlock(&softc->ctl_lock); 12034 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12035 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12036 io->io_hdr.nexus.initid.id, 12037 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12038 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12039 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12040 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12041 } 12042 mtx_unlock(&lun->lun_lock); 12043 return (0); 12044} 12045 12046static int 12047ctl_i_t_nexus_reset(union ctl_io *io) 12048{ 12049 struct ctl_softc *softc = control_softc; 12050 struct ctl_lun *lun; 12051 uint32_t initindex; 12052 12053 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12054 mtx_lock(&softc->ctl_lock); 12055 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12056 mtx_lock(&lun->lun_lock); 12057 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12058 io->io_hdr.nexus.initid.id, 12059 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12060#ifdef CTL_WITH_CA 12061 ctl_clear_mask(lun->have_ca, initindex); 12062#endif 12063 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12064 mtx_unlock(&lun->lun_lock); 12065 } 12066 mtx_unlock(&softc->ctl_lock); 12067 return (0); 12068} 12069 12070static int 12071ctl_abort_task(union ctl_io *io) 12072{ 12073 union ctl_io *xio; 12074 struct ctl_lun *lun; 12075 struct ctl_softc *ctl_softc; 12076#if 0 12077 struct sbuf sb; 12078 char printbuf[128]; 12079#endif 12080 int found; 12081 uint32_t targ_lun; 12082 12083 ctl_softc = control_softc; 12084 found = 0; 12085 12086 /* 12087 * Look up the LUN. 12088 */ 12089 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12090 mtx_lock(&ctl_softc->ctl_lock); 12091 if ((targ_lun < CTL_MAX_LUNS) 12092 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12093 lun = ctl_softc->ctl_luns[targ_lun]; 12094 else { 12095 mtx_unlock(&ctl_softc->ctl_lock); 12096 return (1); 12097 } 12098 12099#if 0 12100 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12101 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12102#endif 12103 12104 mtx_lock(&lun->lun_lock); 12105 mtx_unlock(&ctl_softc->ctl_lock); 12106 /* 12107 * Run through the OOA queue and attempt to find the given I/O. 12108 * The target port, initiator ID, tag type and tag number have to 12109 * match the values that we got from the initiator. If we have an 12110 * untagged command to abort, simply abort the first untagged command 12111 * we come to. We only allow one untagged command at a time of course. 12112 */ 12113#if 0 12114 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12115#endif 12116 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12117 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12118#if 0 12119 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12120 12121 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12122 lun->lun, xio->scsiio.tag_num, 12123 xio->scsiio.tag_type, 12124 (xio->io_hdr.blocked_links.tqe_prev 12125 == NULL) ? "" : " BLOCKED", 12126 (xio->io_hdr.flags & 12127 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12128 (xio->io_hdr.flags & 12129 CTL_FLAG_ABORT) ? " ABORT" : "", 12130 (xio->io_hdr.flags & 12131 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12132 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12133 sbuf_finish(&sb); 12134 printf("%s\n", sbuf_data(&sb)); 12135#endif 12136 12137 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12138 && (xio->io_hdr.nexus.initid.id == 12139 io->io_hdr.nexus.initid.id)) { 12140 /* 12141 * If the abort says that the task is untagged, the 12142 * task in the queue must be untagged. Otherwise, 12143 * we just check to see whether the tag numbers 12144 * match. This is because the QLogic firmware 12145 * doesn't pass back the tag type in an abort 12146 * request. 12147 */ 12148#if 0 12149 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12150 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12151 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12152#endif 12153 /* 12154 * XXX KDM we've got problems with FC, because it 12155 * doesn't send down a tag type with aborts. So we 12156 * can only really go by the tag number... 12157 * This may cause problems with parallel SCSI. 12158 * Need to figure that out!! 12159 */ 12160 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12161 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12162 found = 1; 12163 if ((io->io_hdr.flags & 12164 CTL_FLAG_FROM_OTHER_SC) == 0 && 12165 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12166 union ctl_ha_msg msg_info; 12167 12168 io->io_hdr.flags |= 12169 CTL_FLAG_SENT_2OTHER_SC; 12170 msg_info.hdr.nexus = io->io_hdr.nexus; 12171 msg_info.task.task_action = 12172 CTL_TASK_ABORT_TASK; 12173 msg_info.task.tag_num = 12174 io->taskio.tag_num; 12175 msg_info.task.tag_type = 12176 io->taskio.tag_type; 12177 msg_info.hdr.msg_type = 12178 CTL_MSG_MANAGE_TASKS; 12179 msg_info.hdr.original_sc = NULL; 12180 msg_info.hdr.serializing_sc = NULL; 12181#if 0 12182 printf("Sent Abort to other side\n"); 12183#endif 12184 if (CTL_HA_STATUS_SUCCESS != 12185 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12186 (void *)&msg_info, 12187 sizeof(msg_info), 0)) { 12188 } 12189 } 12190#if 0 12191 printf("ctl_abort_task: found I/O to abort\n"); 12192#endif 12193 break; 12194 } 12195 } 12196 } 12197 mtx_unlock(&lun->lun_lock); 12198 12199 if (found == 0) { 12200 /* 12201 * This isn't really an error. It's entirely possible for 12202 * the abort and command completion to cross on the wire. 12203 * This is more of an informative/diagnostic error. 12204 */ 12205#if 0 12206 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12207 "%d:%d:%d:%d tag %d type %d\n", 12208 io->io_hdr.nexus.initid.id, 12209 io->io_hdr.nexus.targ_port, 12210 io->io_hdr.nexus.targ_target.id, 12211 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12212 io->taskio.tag_type); 12213#endif 12214 } 12215 return (0); 12216} 12217 12218static void 12219ctl_run_task(union ctl_io *io) 12220{ 12221 struct ctl_softc *ctl_softc = control_softc; 12222 int retval = 1; 12223 const char *task_desc; 12224 12225 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12226 12227 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12228 ("ctl_run_task: Unextected io_type %d\n", 12229 io->io_hdr.io_type)); 12230 12231 task_desc = ctl_scsi_task_string(&io->taskio); 12232 if (task_desc != NULL) { 12233#ifdef NEEDTOPORT 12234 csevent_log(CSC_CTL | CSC_SHELF_SW | 12235 CTL_TASK_REPORT, 12236 csevent_LogType_Trace, 12237 csevent_Severity_Information, 12238 csevent_AlertLevel_Green, 12239 csevent_FRU_Firmware, 12240 csevent_FRU_Unknown, 12241 "CTL: received task: %s",task_desc); 12242#endif 12243 } else { 12244#ifdef NEEDTOPORT 12245 csevent_log(CSC_CTL | CSC_SHELF_SW | 12246 CTL_TASK_REPORT, 12247 csevent_LogType_Trace, 12248 csevent_Severity_Information, 12249 csevent_AlertLevel_Green, 12250 csevent_FRU_Firmware, 12251 csevent_FRU_Unknown, 12252 "CTL: received unknown task " 12253 "type: %d (%#x)", 12254 io->taskio.task_action, 12255 io->taskio.task_action); 12256#endif 12257 } 12258 switch (io->taskio.task_action) { 12259 case CTL_TASK_ABORT_TASK: 12260 retval = ctl_abort_task(io); 12261 break; 12262 case CTL_TASK_ABORT_TASK_SET: 12263 case CTL_TASK_CLEAR_TASK_SET: 12264 retval = ctl_abort_task_set(io); 12265 break; 12266 case CTL_TASK_CLEAR_ACA: 12267 break; 12268 case CTL_TASK_I_T_NEXUS_RESET: 12269 retval = ctl_i_t_nexus_reset(io); 12270 break; 12271 case CTL_TASK_LUN_RESET: { 12272 struct ctl_lun *lun; 12273 uint32_t targ_lun; 12274 12275 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12276 mtx_lock(&ctl_softc->ctl_lock); 12277 if ((targ_lun < CTL_MAX_LUNS) 12278 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12279 lun = ctl_softc->ctl_luns[targ_lun]; 12280 else { 12281 mtx_unlock(&ctl_softc->ctl_lock); 12282 retval = 1; 12283 break; 12284 } 12285 12286 if (!(io->io_hdr.flags & 12287 CTL_FLAG_FROM_OTHER_SC)) { 12288 union ctl_ha_msg msg_info; 12289 12290 io->io_hdr.flags |= 12291 CTL_FLAG_SENT_2OTHER_SC; 12292 msg_info.hdr.msg_type = 12293 CTL_MSG_MANAGE_TASKS; 12294 msg_info.hdr.nexus = io->io_hdr.nexus; 12295 msg_info.task.task_action = 12296 CTL_TASK_LUN_RESET; 12297 msg_info.hdr.original_sc = NULL; 12298 msg_info.hdr.serializing_sc = NULL; 12299 if (CTL_HA_STATUS_SUCCESS != 12300 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12301 (void *)&msg_info, 12302 sizeof(msg_info), 0)) { 12303 } 12304 } 12305 12306 retval = ctl_lun_reset(lun, io, 12307 CTL_UA_LUN_RESET); 12308 mtx_unlock(&ctl_softc->ctl_lock); 12309 break; 12310 } 12311 case CTL_TASK_TARGET_RESET: 12312 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12313 break; 12314 case CTL_TASK_BUS_RESET: 12315 retval = ctl_bus_reset(ctl_softc, io); 12316 break; 12317 case CTL_TASK_PORT_LOGIN: 12318 break; 12319 case CTL_TASK_PORT_LOGOUT: 12320 break; 12321 default: 12322 printf("ctl_run_task: got unknown task management event %d\n", 12323 io->taskio.task_action); 12324 break; 12325 } 12326 if (retval == 0) 12327 io->io_hdr.status = CTL_SUCCESS; 12328 else 12329 io->io_hdr.status = CTL_ERROR; 12330 ctl_done(io); 12331} 12332 12333/* 12334 * For HA operation. Handle commands that come in from the other 12335 * controller. 12336 */ 12337static void 12338ctl_handle_isc(union ctl_io *io) 12339{ 12340 int free_io; 12341 struct ctl_lun *lun; 12342 struct ctl_softc *ctl_softc; 12343 uint32_t targ_lun; 12344 12345 ctl_softc = control_softc; 12346 12347 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12348 lun = ctl_softc->ctl_luns[targ_lun]; 12349 12350 switch (io->io_hdr.msg_type) { 12351 case CTL_MSG_SERIALIZE: 12352 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12353 break; 12354 case CTL_MSG_R2R: { 12355 const struct ctl_cmd_entry *entry; 12356 12357 /* 12358 * This is only used in SER_ONLY mode. 12359 */ 12360 free_io = 0; 12361 entry = ctl_get_cmd_entry(&io->scsiio); 12362 mtx_lock(&lun->lun_lock); 12363 if (ctl_scsiio_lun_check(ctl_softc, lun, 12364 entry, (struct ctl_scsiio *)io) != 0) { 12365 mtx_unlock(&lun->lun_lock); 12366 ctl_done(io); 12367 break; 12368 } 12369 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12370 mtx_unlock(&lun->lun_lock); 12371 ctl_enqueue_rtr(io); 12372 break; 12373 } 12374 case CTL_MSG_FINISH_IO: 12375 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12376 free_io = 0; 12377 ctl_done(io); 12378 } else { 12379 free_io = 1; 12380 mtx_lock(&lun->lun_lock); 12381 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12382 ooa_links); 12383 ctl_check_blocked(lun); 12384 mtx_unlock(&lun->lun_lock); 12385 } 12386 break; 12387 case CTL_MSG_PERS_ACTION: 12388 ctl_hndl_per_res_out_on_other_sc( 12389 (union ctl_ha_msg *)&io->presio.pr_msg); 12390 free_io = 1; 12391 break; 12392 case CTL_MSG_BAD_JUJU: 12393 free_io = 0; 12394 ctl_done(io); 12395 break; 12396 case CTL_MSG_DATAMOVE: 12397 /* Only used in XFER mode */ 12398 free_io = 0; 12399 ctl_datamove_remote(io); 12400 break; 12401 case CTL_MSG_DATAMOVE_DONE: 12402 /* Only used in XFER mode */ 12403 free_io = 0; 12404 io->scsiio.be_move_done(io); 12405 break; 12406 default: 12407 free_io = 1; 12408 printf("%s: Invalid message type %d\n", 12409 __func__, io->io_hdr.msg_type); 12410 break; 12411 } 12412 if (free_io) 12413 ctl_free_io(io); 12414 12415} 12416 12417 12418/* 12419 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12420 * there is no match. 12421 */ 12422static ctl_lun_error_pattern 12423ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12424{ 12425 const struct ctl_cmd_entry *entry; 12426 ctl_lun_error_pattern filtered_pattern, pattern; 12427 12428 pattern = desc->error_pattern; 12429 12430 /* 12431 * XXX KDM we need more data passed into this function to match a 12432 * custom pattern, and we actually need to implement custom pattern 12433 * matching. 12434 */ 12435 if (pattern & CTL_LUN_PAT_CMD) 12436 return (CTL_LUN_PAT_CMD); 12437 12438 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12439 return (CTL_LUN_PAT_ANY); 12440 12441 entry = ctl_get_cmd_entry(ctsio); 12442 12443 filtered_pattern = entry->pattern & pattern; 12444 12445 /* 12446 * If the user requested specific flags in the pattern (e.g. 12447 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12448 * flags. 12449 * 12450 * If the user did not specify any flags, it doesn't matter whether 12451 * or not the command supports the flags. 12452 */ 12453 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12454 (pattern & ~CTL_LUN_PAT_MASK)) 12455 return (CTL_LUN_PAT_NONE); 12456 12457 /* 12458 * If the user asked for a range check, see if the requested LBA 12459 * range overlaps with this command's LBA range. 12460 */ 12461 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12462 uint64_t lba1; 12463 uint32_t len1; 12464 ctl_action action; 12465 int retval; 12466 12467 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12468 if (retval != 0) 12469 return (CTL_LUN_PAT_NONE); 12470 12471 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12472 desc->lba_range.len); 12473 /* 12474 * A "pass" means that the LBA ranges don't overlap, so 12475 * this doesn't match the user's range criteria. 12476 */ 12477 if (action == CTL_ACTION_PASS) 12478 return (CTL_LUN_PAT_NONE); 12479 } 12480 12481 return (filtered_pattern); 12482} 12483 12484static void 12485ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12486{ 12487 struct ctl_error_desc *desc, *desc2; 12488 12489 mtx_assert(&lun->lun_lock, MA_OWNED); 12490 12491 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12492 ctl_lun_error_pattern pattern; 12493 /* 12494 * Check to see whether this particular command matches 12495 * the pattern in the descriptor. 12496 */ 12497 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12498 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12499 continue; 12500 12501 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12502 case CTL_LUN_INJ_ABORTED: 12503 ctl_set_aborted(&io->scsiio); 12504 break; 12505 case CTL_LUN_INJ_MEDIUM_ERR: 12506 ctl_set_medium_error(&io->scsiio); 12507 break; 12508 case CTL_LUN_INJ_UA: 12509 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12510 * OCCURRED */ 12511 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12512 break; 12513 case CTL_LUN_INJ_CUSTOM: 12514 /* 12515 * We're assuming the user knows what he is doing. 12516 * Just copy the sense information without doing 12517 * checks. 12518 */ 12519 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12520 ctl_min(sizeof(desc->custom_sense), 12521 sizeof(io->scsiio.sense_data))); 12522 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12523 io->scsiio.sense_len = SSD_FULL_SIZE; 12524 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12525 break; 12526 case CTL_LUN_INJ_NONE: 12527 default: 12528 /* 12529 * If this is an error injection type we don't know 12530 * about, clear the continuous flag (if it is set) 12531 * so it will get deleted below. 12532 */ 12533 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12534 break; 12535 } 12536 /* 12537 * By default, each error injection action is a one-shot 12538 */ 12539 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12540 continue; 12541 12542 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12543 12544 free(desc, M_CTL); 12545 } 12546} 12547 12548#ifdef CTL_IO_DELAY 12549static void 12550ctl_datamove_timer_wakeup(void *arg) 12551{ 12552 union ctl_io *io; 12553 12554 io = (union ctl_io *)arg; 12555 12556 ctl_datamove(io); 12557} 12558#endif /* CTL_IO_DELAY */ 12559 12560void 12561ctl_datamove(union ctl_io *io) 12562{ 12563 void (*fe_datamove)(union ctl_io *io); 12564 12565 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12566 12567 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12568 12569#ifdef CTL_TIME_IO 12570 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12571 char str[256]; 12572 char path_str[64]; 12573 struct sbuf sb; 12574 12575 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12576 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12577 12578 sbuf_cat(&sb, path_str); 12579 switch (io->io_hdr.io_type) { 12580 case CTL_IO_SCSI: 12581 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12582 sbuf_printf(&sb, "\n"); 12583 sbuf_cat(&sb, path_str); 12584 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12585 io->scsiio.tag_num, io->scsiio.tag_type); 12586 break; 12587 case CTL_IO_TASK: 12588 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12589 "Tag Type: %d\n", io->taskio.task_action, 12590 io->taskio.tag_num, io->taskio.tag_type); 12591 break; 12592 default: 12593 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12594 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12595 break; 12596 } 12597 sbuf_cat(&sb, path_str); 12598 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12599 (intmax_t)time_uptime - io->io_hdr.start_time); 12600 sbuf_finish(&sb); 12601 printf("%s", sbuf_data(&sb)); 12602 } 12603#endif /* CTL_TIME_IO */ 12604 12605#ifdef CTL_IO_DELAY 12606 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12607 struct ctl_lun *lun; 12608 12609 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12610 12611 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12612 } else { 12613 struct ctl_lun *lun; 12614 12615 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12616 if ((lun != NULL) 12617 && (lun->delay_info.datamove_delay > 0)) { 12618 struct callout *callout; 12619 12620 callout = (struct callout *)&io->io_hdr.timer_bytes; 12621 callout_init(callout, /*mpsafe*/ 1); 12622 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12623 callout_reset(callout, 12624 lun->delay_info.datamove_delay * hz, 12625 ctl_datamove_timer_wakeup, io); 12626 if (lun->delay_info.datamove_type == 12627 CTL_DELAY_TYPE_ONESHOT) 12628 lun->delay_info.datamove_delay = 0; 12629 return; 12630 } 12631 } 12632#endif 12633 12634 /* 12635 * This command has been aborted. Set the port status, so we fail 12636 * the data move. 12637 */ 12638 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12639 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12640 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12641 io->io_hdr.nexus.targ_port, 12642 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12643 io->io_hdr.nexus.targ_lun); 12644 io->io_hdr.port_status = 31337; 12645 /* 12646 * Note that the backend, in this case, will get the 12647 * callback in its context. In other cases it may get 12648 * called in the frontend's interrupt thread context. 12649 */ 12650 io->scsiio.be_move_done(io); 12651 return; 12652 } 12653 12654 /* 12655 * If we're in XFER mode and this I/O is from the other shelf 12656 * controller, we need to send the DMA to the other side to 12657 * actually transfer the data to/from the host. In serialize only 12658 * mode the transfer happens below CTL and ctl_datamove() is only 12659 * called on the machine that originally received the I/O. 12660 */ 12661 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12662 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12663 union ctl_ha_msg msg; 12664 uint32_t sg_entries_sent; 12665 int do_sg_copy; 12666 int i; 12667 12668 memset(&msg, 0, sizeof(msg)); 12669 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12670 msg.hdr.original_sc = io->io_hdr.original_sc; 12671 msg.hdr.serializing_sc = io; 12672 msg.hdr.nexus = io->io_hdr.nexus; 12673 msg.dt.flags = io->io_hdr.flags; 12674 /* 12675 * We convert everything into a S/G list here. We can't 12676 * pass by reference, only by value between controllers. 12677 * So we can't pass a pointer to the S/G list, only as many 12678 * S/G entries as we can fit in here. If it's possible for 12679 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12680 * then we need to break this up into multiple transfers. 12681 */ 12682 if (io->scsiio.kern_sg_entries == 0) { 12683 msg.dt.kern_sg_entries = 1; 12684 /* 12685 * If this is in cached memory, flush the cache 12686 * before we send the DMA request to the other 12687 * controller. We want to do this in either the 12688 * read or the write case. The read case is 12689 * straightforward. In the write case, we want to 12690 * make sure nothing is in the local cache that 12691 * could overwrite the DMAed data. 12692 */ 12693 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12694 /* 12695 * XXX KDM use bus_dmamap_sync() here. 12696 */ 12697 } 12698 12699 /* 12700 * Convert to a physical address if this is a 12701 * virtual address. 12702 */ 12703 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12704 msg.dt.sg_list[0].addr = 12705 io->scsiio.kern_data_ptr; 12706 } else { 12707 /* 12708 * XXX KDM use busdma here! 12709 */ 12710#if 0 12711 msg.dt.sg_list[0].addr = (void *) 12712 vtophys(io->scsiio.kern_data_ptr); 12713#endif 12714 } 12715 12716 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12717 do_sg_copy = 0; 12718 } else { 12719 struct ctl_sg_entry *sgl; 12720 12721 do_sg_copy = 1; 12722 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12723 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12724 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12725 /* 12726 * XXX KDM use bus_dmamap_sync() here. 12727 */ 12728 } 12729 } 12730 12731 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12732 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12733 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12734 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12735 msg.dt.sg_sequence = 0; 12736 12737 /* 12738 * Loop until we've sent all of the S/G entries. On the 12739 * other end, we'll recompose these S/G entries into one 12740 * contiguous list before passing it to the 12741 */ 12742 for (sg_entries_sent = 0; sg_entries_sent < 12743 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12744 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12745 sizeof(msg.dt.sg_list[0])), 12746 msg.dt.kern_sg_entries - sg_entries_sent); 12747 12748 if (do_sg_copy != 0) { 12749 struct ctl_sg_entry *sgl; 12750 int j; 12751 12752 sgl = (struct ctl_sg_entry *) 12753 io->scsiio.kern_data_ptr; 12754 /* 12755 * If this is in cached memory, flush the cache 12756 * before we send the DMA request to the other 12757 * controller. We want to do this in either 12758 * the * read or the write case. The read 12759 * case is straightforward. In the write 12760 * case, we want to make sure nothing is 12761 * in the local cache that could overwrite 12762 * the DMAed data. 12763 */ 12764 12765 for (i = sg_entries_sent, j = 0; 12766 i < msg.dt.cur_sg_entries; i++, j++) { 12767 if ((io->io_hdr.flags & 12768 CTL_FLAG_NO_DATASYNC) == 0) { 12769 /* 12770 * XXX KDM use bus_dmamap_sync() 12771 */ 12772 } 12773 if ((io->io_hdr.flags & 12774 CTL_FLAG_BUS_ADDR) == 0) { 12775 /* 12776 * XXX KDM use busdma. 12777 */ 12778#if 0 12779 msg.dt.sg_list[j].addr =(void *) 12780 vtophys(sgl[i].addr); 12781#endif 12782 } else { 12783 msg.dt.sg_list[j].addr = 12784 sgl[i].addr; 12785 } 12786 msg.dt.sg_list[j].len = sgl[i].len; 12787 } 12788 } 12789 12790 sg_entries_sent += msg.dt.cur_sg_entries; 12791 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12792 msg.dt.sg_last = 1; 12793 else 12794 msg.dt.sg_last = 0; 12795 12796 /* 12797 * XXX KDM drop and reacquire the lock here? 12798 */ 12799 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12800 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12801 /* 12802 * XXX do something here. 12803 */ 12804 } 12805 12806 msg.dt.sent_sg_entries = sg_entries_sent; 12807 } 12808 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12809 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12810 ctl_failover_io(io, /*have_lock*/ 0); 12811 12812 } else { 12813 12814 /* 12815 * Lookup the fe_datamove() function for this particular 12816 * front end. 12817 */ 12818 fe_datamove = 12819 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12820 12821 fe_datamove(io); 12822 } 12823} 12824 12825static void 12826ctl_send_datamove_done(union ctl_io *io, int have_lock) 12827{ 12828 union ctl_ha_msg msg; 12829 int isc_status; 12830 12831 memset(&msg, 0, sizeof(msg)); 12832 12833 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12834 msg.hdr.original_sc = io; 12835 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12836 msg.hdr.nexus = io->io_hdr.nexus; 12837 msg.hdr.status = io->io_hdr.status; 12838 msg.scsi.tag_num = io->scsiio.tag_num; 12839 msg.scsi.tag_type = io->scsiio.tag_type; 12840 msg.scsi.scsi_status = io->scsiio.scsi_status; 12841 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12842 sizeof(io->scsiio.sense_data)); 12843 msg.scsi.sense_len = io->scsiio.sense_len; 12844 msg.scsi.sense_residual = io->scsiio.sense_residual; 12845 msg.scsi.fetd_status = io->io_hdr.port_status; 12846 msg.scsi.residual = io->scsiio.residual; 12847 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12848 12849 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12850 ctl_failover_io(io, /*have_lock*/ have_lock); 12851 return; 12852 } 12853 12854 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12855 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12856 /* XXX do something if this fails */ 12857 } 12858 12859} 12860 12861/* 12862 * The DMA to the remote side is done, now we need to tell the other side 12863 * we're done so it can continue with its data movement. 12864 */ 12865static void 12866ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12867{ 12868 union ctl_io *io; 12869 12870 io = rq->context; 12871 12872 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12873 printf("%s: ISC DMA write failed with error %d", __func__, 12874 rq->ret); 12875 ctl_set_internal_failure(&io->scsiio, 12876 /*sks_valid*/ 1, 12877 /*retry_count*/ rq->ret); 12878 } 12879 12880 ctl_dt_req_free(rq); 12881 12882 /* 12883 * In this case, we had to malloc the memory locally. Free it. 12884 */ 12885 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12886 int i; 12887 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12888 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12889 } 12890 /* 12891 * The data is in local and remote memory, so now we need to send 12892 * status (good or back) back to the other side. 12893 */ 12894 ctl_send_datamove_done(io, /*have_lock*/ 0); 12895} 12896 12897/* 12898 * We've moved the data from the host/controller into local memory. Now we 12899 * need to push it over to the remote controller's memory. 12900 */ 12901static int 12902ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12903{ 12904 int retval; 12905 12906 retval = 0; 12907 12908 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12909 ctl_datamove_remote_write_cb); 12910 12911 return (retval); 12912} 12913 12914static void 12915ctl_datamove_remote_write(union ctl_io *io) 12916{ 12917 int retval; 12918 void (*fe_datamove)(union ctl_io *io); 12919 12920 /* 12921 * - Get the data from the host/HBA into local memory. 12922 * - DMA memory from the local controller to the remote controller. 12923 * - Send status back to the remote controller. 12924 */ 12925 12926 retval = ctl_datamove_remote_sgl_setup(io); 12927 if (retval != 0) 12928 return; 12929 12930 /* Switch the pointer over so the FETD knows what to do */ 12931 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12932 12933 /* 12934 * Use a custom move done callback, since we need to send completion 12935 * back to the other controller, not to the backend on this side. 12936 */ 12937 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12938 12939 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12940 12941 fe_datamove(io); 12942 12943 return; 12944 12945} 12946 12947static int 12948ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12949{ 12950#if 0 12951 char str[256]; 12952 char path_str[64]; 12953 struct sbuf sb; 12954#endif 12955 12956 /* 12957 * In this case, we had to malloc the memory locally. Free it. 12958 */ 12959 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12960 int i; 12961 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12962 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12963 } 12964 12965#if 0 12966 scsi_path_string(io, path_str, sizeof(path_str)); 12967 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12968 sbuf_cat(&sb, path_str); 12969 scsi_command_string(&io->scsiio, NULL, &sb); 12970 sbuf_printf(&sb, "\n"); 12971 sbuf_cat(&sb, path_str); 12972 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12973 io->scsiio.tag_num, io->scsiio.tag_type); 12974 sbuf_cat(&sb, path_str); 12975 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12976 io->io_hdr.flags, io->io_hdr.status); 12977 sbuf_finish(&sb); 12978 printk("%s", sbuf_data(&sb)); 12979#endif 12980 12981 12982 /* 12983 * The read is done, now we need to send status (good or bad) back 12984 * to the other side. 12985 */ 12986 ctl_send_datamove_done(io, /*have_lock*/ 0); 12987 12988 return (0); 12989} 12990 12991static void 12992ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12993{ 12994 union ctl_io *io; 12995 void (*fe_datamove)(union ctl_io *io); 12996 12997 io = rq->context; 12998 12999 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13000 printf("%s: ISC DMA read failed with error %d", __func__, 13001 rq->ret); 13002 ctl_set_internal_failure(&io->scsiio, 13003 /*sks_valid*/ 1, 13004 /*retry_count*/ rq->ret); 13005 } 13006 13007 ctl_dt_req_free(rq); 13008 13009 /* Switch the pointer over so the FETD knows what to do */ 13010 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13011 13012 /* 13013 * Use a custom move done callback, since we need to send completion 13014 * back to the other controller, not to the backend on this side. 13015 */ 13016 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13017 13018 /* XXX KDM add checks like the ones in ctl_datamove? */ 13019 13020 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13021 13022 fe_datamove(io); 13023} 13024 13025static int 13026ctl_datamove_remote_sgl_setup(union ctl_io *io) 13027{ 13028 struct ctl_sg_entry *local_sglist, *remote_sglist; 13029 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13030 struct ctl_softc *softc; 13031 int retval; 13032 int i; 13033 13034 retval = 0; 13035 softc = control_softc; 13036 13037 local_sglist = io->io_hdr.local_sglist; 13038 local_dma_sglist = io->io_hdr.local_dma_sglist; 13039 remote_sglist = io->io_hdr.remote_sglist; 13040 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13041 13042 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13043 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13044 local_sglist[i].len = remote_sglist[i].len; 13045 13046 /* 13047 * XXX Detect the situation where the RS-level I/O 13048 * redirector on the other side has already read the 13049 * data off of the AOR RS on this side, and 13050 * transferred it to remote (mirror) memory on the 13051 * other side. Since we already have the data in 13052 * memory here, we just need to use it. 13053 * 13054 * XXX KDM this can probably be removed once we 13055 * get the cache device code in and take the 13056 * current AOR implementation out. 13057 */ 13058#ifdef NEEDTOPORT 13059 if ((remote_sglist[i].addr >= 13060 (void *)vtophys(softc->mirr->addr)) 13061 && (remote_sglist[i].addr < 13062 ((void *)vtophys(softc->mirr->addr) + 13063 CacheMirrorOffset))) { 13064 local_sglist[i].addr = remote_sglist[i].addr - 13065 CacheMirrorOffset; 13066 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13067 CTL_FLAG_DATA_IN) 13068 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13069 } else { 13070 local_sglist[i].addr = remote_sglist[i].addr + 13071 CacheMirrorOffset; 13072 } 13073#endif 13074#if 0 13075 printf("%s: local %p, remote %p, len %d\n", 13076 __func__, local_sglist[i].addr, 13077 remote_sglist[i].addr, local_sglist[i].len); 13078#endif 13079 } 13080 } else { 13081 uint32_t len_to_go; 13082 13083 /* 13084 * In this case, we don't have automatically allocated 13085 * memory for this I/O on this controller. This typically 13086 * happens with internal CTL I/O -- e.g. inquiry, mode 13087 * sense, etc. Anything coming from RAIDCore will have 13088 * a mirror area available. 13089 */ 13090 len_to_go = io->scsiio.kern_data_len; 13091 13092 /* 13093 * Clear the no datasync flag, we have to use malloced 13094 * buffers. 13095 */ 13096 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13097 13098 /* 13099 * The difficult thing here is that the size of the various 13100 * S/G segments may be different than the size from the 13101 * remote controller. That'll make it harder when DMAing 13102 * the data back to the other side. 13103 */ 13104 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13105 sizeof(io->io_hdr.remote_sglist[0])) && 13106 (len_to_go > 0); i++) { 13107 local_sglist[i].len = ctl_min(len_to_go, 131072); 13108 CTL_SIZE_8B(local_dma_sglist[i].len, 13109 local_sglist[i].len); 13110 local_sglist[i].addr = 13111 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13112 13113 local_dma_sglist[i].addr = local_sglist[i].addr; 13114 13115 if (local_sglist[i].addr == NULL) { 13116 int j; 13117 13118 printf("malloc failed for %zd bytes!", 13119 local_dma_sglist[i].len); 13120 for (j = 0; j < i; j++) { 13121 free(local_sglist[j].addr, M_CTL); 13122 } 13123 ctl_set_internal_failure(&io->scsiio, 13124 /*sks_valid*/ 1, 13125 /*retry_count*/ 4857); 13126 retval = 1; 13127 goto bailout_error; 13128 13129 } 13130 /* XXX KDM do we need a sync here? */ 13131 13132 len_to_go -= local_sglist[i].len; 13133 } 13134 /* 13135 * Reset the number of S/G entries accordingly. The 13136 * original number of S/G entries is available in 13137 * rem_sg_entries. 13138 */ 13139 io->scsiio.kern_sg_entries = i; 13140 13141#if 0 13142 printf("%s: kern_sg_entries = %d\n", __func__, 13143 io->scsiio.kern_sg_entries); 13144 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13145 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13146 local_sglist[i].addr, local_sglist[i].len, 13147 local_dma_sglist[i].len); 13148#endif 13149 } 13150 13151 13152 return (retval); 13153 13154bailout_error: 13155 13156 ctl_send_datamove_done(io, /*have_lock*/ 0); 13157 13158 return (retval); 13159} 13160 13161static int 13162ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13163 ctl_ha_dt_cb callback) 13164{ 13165 struct ctl_ha_dt_req *rq; 13166 struct ctl_sg_entry *remote_sglist, *local_sglist; 13167 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13168 uint32_t local_used, remote_used, total_used; 13169 int retval; 13170 int i, j; 13171 13172 retval = 0; 13173 13174 rq = ctl_dt_req_alloc(); 13175 13176 /* 13177 * If we failed to allocate the request, and if the DMA didn't fail 13178 * anyway, set busy status. This is just a resource allocation 13179 * failure. 13180 */ 13181 if ((rq == NULL) 13182 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13183 ctl_set_busy(&io->scsiio); 13184 13185 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13186 13187 if (rq != NULL) 13188 ctl_dt_req_free(rq); 13189 13190 /* 13191 * The data move failed. We need to return status back 13192 * to the other controller. No point in trying to DMA 13193 * data to the remote controller. 13194 */ 13195 13196 ctl_send_datamove_done(io, /*have_lock*/ 0); 13197 13198 retval = 1; 13199 13200 goto bailout; 13201 } 13202 13203 local_sglist = io->io_hdr.local_sglist; 13204 local_dma_sglist = io->io_hdr.local_dma_sglist; 13205 remote_sglist = io->io_hdr.remote_sglist; 13206 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13207 local_used = 0; 13208 remote_used = 0; 13209 total_used = 0; 13210 13211 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13212 rq->ret = CTL_HA_STATUS_SUCCESS; 13213 rq->context = io; 13214 callback(rq); 13215 goto bailout; 13216 } 13217 13218 /* 13219 * Pull/push the data over the wire from/to the other controller. 13220 * This takes into account the possibility that the local and 13221 * remote sglists may not be identical in terms of the size of 13222 * the elements and the number of elements. 13223 * 13224 * One fundamental assumption here is that the length allocated for 13225 * both the local and remote sglists is identical. Otherwise, we've 13226 * essentially got a coding error of some sort. 13227 */ 13228 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13229 int isc_ret; 13230 uint32_t cur_len, dma_length; 13231 uint8_t *tmp_ptr; 13232 13233 rq->id = CTL_HA_DATA_CTL; 13234 rq->command = command; 13235 rq->context = io; 13236 13237 /* 13238 * Both pointers should be aligned. But it is possible 13239 * that the allocation length is not. They should both 13240 * also have enough slack left over at the end, though, 13241 * to round up to the next 8 byte boundary. 13242 */ 13243 cur_len = ctl_min(local_sglist[i].len - local_used, 13244 remote_sglist[j].len - remote_used); 13245 13246 /* 13247 * In this case, we have a size issue and need to decrease 13248 * the size, except in the case where we actually have less 13249 * than 8 bytes left. In that case, we need to increase 13250 * the DMA length to get the last bit. 13251 */ 13252 if ((cur_len & 0x7) != 0) { 13253 if (cur_len > 0x7) { 13254 cur_len = cur_len - (cur_len & 0x7); 13255 dma_length = cur_len; 13256 } else { 13257 CTL_SIZE_8B(dma_length, cur_len); 13258 } 13259 13260 } else 13261 dma_length = cur_len; 13262 13263 /* 13264 * If we had to allocate memory for this I/O, instead of using 13265 * the non-cached mirror memory, we'll need to flush the cache 13266 * before trying to DMA to the other controller. 13267 * 13268 * We could end up doing this multiple times for the same 13269 * segment if we have a larger local segment than remote 13270 * segment. That shouldn't be an issue. 13271 */ 13272 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13273 /* 13274 * XXX KDM use bus_dmamap_sync() here. 13275 */ 13276 } 13277 13278 rq->size = dma_length; 13279 13280 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13281 tmp_ptr += local_used; 13282 13283 /* Use physical addresses when talking to ISC hardware */ 13284 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13285 /* XXX KDM use busdma */ 13286#if 0 13287 rq->local = vtophys(tmp_ptr); 13288#endif 13289 } else 13290 rq->local = tmp_ptr; 13291 13292 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13293 tmp_ptr += remote_used; 13294 rq->remote = tmp_ptr; 13295 13296 rq->callback = NULL; 13297 13298 local_used += cur_len; 13299 if (local_used >= local_sglist[i].len) { 13300 i++; 13301 local_used = 0; 13302 } 13303 13304 remote_used += cur_len; 13305 if (remote_used >= remote_sglist[j].len) { 13306 j++; 13307 remote_used = 0; 13308 } 13309 total_used += cur_len; 13310 13311 if (total_used >= io->scsiio.kern_data_len) 13312 rq->callback = callback; 13313 13314 if ((rq->size & 0x7) != 0) { 13315 printf("%s: warning: size %d is not on 8b boundary\n", 13316 __func__, rq->size); 13317 } 13318 if (((uintptr_t)rq->local & 0x7) != 0) { 13319 printf("%s: warning: local %p not on 8b boundary\n", 13320 __func__, rq->local); 13321 } 13322 if (((uintptr_t)rq->remote & 0x7) != 0) { 13323 printf("%s: warning: remote %p not on 8b boundary\n", 13324 __func__, rq->local); 13325 } 13326#if 0 13327 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13328 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13329 rq->local, rq->remote, rq->size); 13330#endif 13331 13332 isc_ret = ctl_dt_single(rq); 13333 if (isc_ret == CTL_HA_STATUS_WAIT) 13334 continue; 13335 13336 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13337 rq->ret = CTL_HA_STATUS_SUCCESS; 13338 } else { 13339 rq->ret = isc_ret; 13340 } 13341 callback(rq); 13342 goto bailout; 13343 } 13344 13345bailout: 13346 return (retval); 13347 13348} 13349 13350static void 13351ctl_datamove_remote_read(union ctl_io *io) 13352{ 13353 int retval; 13354 int i; 13355 13356 /* 13357 * This will send an error to the other controller in the case of a 13358 * failure. 13359 */ 13360 retval = ctl_datamove_remote_sgl_setup(io); 13361 if (retval != 0) 13362 return; 13363 13364 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13365 ctl_datamove_remote_read_cb); 13366 if ((retval != 0) 13367 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13368 /* 13369 * Make sure we free memory if there was an error.. The 13370 * ctl_datamove_remote_xfer() function will send the 13371 * datamove done message, or call the callback with an 13372 * error if there is a problem. 13373 */ 13374 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13375 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13376 } 13377 13378 return; 13379} 13380 13381/* 13382 * Process a datamove request from the other controller. This is used for 13383 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13384 * first. Once that is complete, the data gets DMAed into the remote 13385 * controller's memory. For reads, we DMA from the remote controller's 13386 * memory into our memory first, and then move it out to the FETD. 13387 */ 13388static void 13389ctl_datamove_remote(union ctl_io *io) 13390{ 13391 struct ctl_softc *softc; 13392 13393 softc = control_softc; 13394 13395 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13396 13397 /* 13398 * Note that we look for an aborted I/O here, but don't do some of 13399 * the other checks that ctl_datamove() normally does. 13400 * We don't need to run the datamove delay code, since that should 13401 * have been done if need be on the other controller. 13402 */ 13403 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13404 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13405 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13406 io->io_hdr.nexus.targ_port, 13407 io->io_hdr.nexus.targ_target.id, 13408 io->io_hdr.nexus.targ_lun); 13409 io->io_hdr.port_status = 31338; 13410 ctl_send_datamove_done(io, /*have_lock*/ 0); 13411 return; 13412 } 13413 13414 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13415 ctl_datamove_remote_write(io); 13416 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13417 ctl_datamove_remote_read(io); 13418 } else { 13419 union ctl_ha_msg msg; 13420 struct scsi_sense_data *sense; 13421 uint8_t sks[3]; 13422 int retry_count; 13423 13424 memset(&msg, 0, sizeof(msg)); 13425 13426 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13427 msg.hdr.status = CTL_SCSI_ERROR; 13428 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13429 13430 retry_count = 4243; 13431 13432 sense = &msg.scsi.sense_data; 13433 sks[0] = SSD_SCS_VALID; 13434 sks[1] = (retry_count >> 8) & 0xff; 13435 sks[2] = retry_count & 0xff; 13436 13437 /* "Internal target failure" */ 13438 scsi_set_sense_data(sense, 13439 /*sense_format*/ SSD_TYPE_NONE, 13440 /*current_error*/ 1, 13441 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13442 /*asc*/ 0x44, 13443 /*ascq*/ 0x00, 13444 /*type*/ SSD_ELEM_SKS, 13445 /*size*/ sizeof(sks), 13446 /*data*/ sks, 13447 SSD_ELEM_NONE); 13448 13449 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13450 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13451 ctl_failover_io(io, /*have_lock*/ 1); 13452 return; 13453 } 13454 13455 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13456 CTL_HA_STATUS_SUCCESS) { 13457 /* XXX KDM what to do if this fails? */ 13458 } 13459 return; 13460 } 13461 13462} 13463 13464static int 13465ctl_process_done(union ctl_io *io) 13466{ 13467 struct ctl_lun *lun; 13468 struct ctl_softc *ctl_softc; 13469 void (*fe_done)(union ctl_io *io); 13470 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13471 13472 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13473 13474 fe_done = 13475 control_softc->ctl_ports[targ_port]->fe_done; 13476 13477#ifdef CTL_TIME_IO 13478 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13479 char str[256]; 13480 char path_str[64]; 13481 struct sbuf sb; 13482 13483 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13484 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13485 13486 sbuf_cat(&sb, path_str); 13487 switch (io->io_hdr.io_type) { 13488 case CTL_IO_SCSI: 13489 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13490 sbuf_printf(&sb, "\n"); 13491 sbuf_cat(&sb, path_str); 13492 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13493 io->scsiio.tag_num, io->scsiio.tag_type); 13494 break; 13495 case CTL_IO_TASK: 13496 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13497 "Tag Type: %d\n", io->taskio.task_action, 13498 io->taskio.tag_num, io->taskio.tag_type); 13499 break; 13500 default: 13501 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13502 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13503 break; 13504 } 13505 sbuf_cat(&sb, path_str); 13506 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13507 (intmax_t)time_uptime - io->io_hdr.start_time); 13508 sbuf_finish(&sb); 13509 printf("%s", sbuf_data(&sb)); 13510 } 13511#endif /* CTL_TIME_IO */ 13512 13513 switch (io->io_hdr.io_type) { 13514 case CTL_IO_SCSI: 13515 break; 13516 case CTL_IO_TASK: 13517 if (bootverbose || verbose > 0) 13518 ctl_io_error_print(io, NULL); 13519 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13520 ctl_free_io(io); 13521 else 13522 fe_done(io); 13523 return (CTL_RETVAL_COMPLETE); 13524 break; 13525 default: 13526 printf("ctl_process_done: invalid io type %d\n", 13527 io->io_hdr.io_type); 13528 panic("ctl_process_done: invalid io type %d\n", 13529 io->io_hdr.io_type); 13530 break; /* NOTREACHED */ 13531 } 13532 13533 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13534 if (lun == NULL) { 13535 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13536 io->io_hdr.nexus.targ_mapped_lun)); 13537 fe_done(io); 13538 goto bailout; 13539 } 13540 ctl_softc = lun->ctl_softc; 13541 13542 mtx_lock(&lun->lun_lock); 13543 13544 /* 13545 * Check to see if we have any errors to inject here. We only 13546 * inject errors for commands that don't already have errors set. 13547 */ 13548 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13549 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13550 ctl_inject_error(lun, io); 13551 13552 /* 13553 * XXX KDM how do we treat commands that aren't completed 13554 * successfully? 13555 * 13556 * XXX KDM should we also track I/O latency? 13557 */ 13558 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13559 io->io_hdr.io_type == CTL_IO_SCSI) { 13560#ifdef CTL_TIME_IO 13561 struct bintime cur_bt; 13562#endif 13563 int type; 13564 13565 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13566 CTL_FLAG_DATA_IN) 13567 type = CTL_STATS_READ; 13568 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13569 CTL_FLAG_DATA_OUT) 13570 type = CTL_STATS_WRITE; 13571 else 13572 type = CTL_STATS_NO_IO; 13573 13574 lun->stats.ports[targ_port].bytes[type] += 13575 io->scsiio.kern_total_len; 13576 lun->stats.ports[targ_port].operations[type]++; 13577#ifdef CTL_TIME_IO 13578 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13579 &io->io_hdr.dma_bt); 13580 lun->stats.ports[targ_port].num_dmas[type] += 13581 io->io_hdr.num_dmas; 13582 getbintime(&cur_bt); 13583 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13584 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13585#endif 13586 } 13587 13588 /* 13589 * Remove this from the OOA queue. 13590 */ 13591 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13592 13593 /* 13594 * Run through the blocked queue on this LUN and see if anything 13595 * has become unblocked, now that this transaction is done. 13596 */ 13597 ctl_check_blocked(lun); 13598 13599 /* 13600 * If the LUN has been invalidated, free it if there is nothing 13601 * left on its OOA queue. 13602 */ 13603 if ((lun->flags & CTL_LUN_INVALID) 13604 && TAILQ_EMPTY(&lun->ooa_queue)) { 13605 mtx_unlock(&lun->lun_lock); 13606 mtx_lock(&ctl_softc->ctl_lock); 13607 ctl_free_lun(lun); 13608 mtx_unlock(&ctl_softc->ctl_lock); 13609 } else 13610 mtx_unlock(&lun->lun_lock); 13611 13612 /* 13613 * If this command has been aborted, make sure we set the status 13614 * properly. The FETD is responsible for freeing the I/O and doing 13615 * whatever it needs to do to clean up its state. 13616 */ 13617 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13618 ctl_set_task_aborted(&io->scsiio); 13619 13620 /* 13621 * We print out status for every task management command. For SCSI 13622 * commands, we filter out any unit attention errors; they happen 13623 * on every boot, and would clutter up the log. Note: task 13624 * management commands aren't printed here, they are printed above, 13625 * since they should never even make it down here. 13626 */ 13627 switch (io->io_hdr.io_type) { 13628 case CTL_IO_SCSI: { 13629 int error_code, sense_key, asc, ascq; 13630 13631 sense_key = 0; 13632 13633 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13634 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13635 /* 13636 * Since this is just for printing, no need to 13637 * show errors here. 13638 */ 13639 scsi_extract_sense_len(&io->scsiio.sense_data, 13640 io->scsiio.sense_len, 13641 &error_code, 13642 &sense_key, 13643 &asc, 13644 &ascq, 13645 /*show_errors*/ 0); 13646 } 13647 13648 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13649 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13650 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13651 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13652 13653 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13654 ctl_softc->skipped_prints++; 13655 } else { 13656 uint32_t skipped_prints; 13657 13658 skipped_prints = ctl_softc->skipped_prints; 13659 13660 ctl_softc->skipped_prints = 0; 13661 ctl_softc->last_print_jiffies = time_uptime; 13662 13663 if (skipped_prints > 0) { 13664#ifdef NEEDTOPORT 13665 csevent_log(CSC_CTL | CSC_SHELF_SW | 13666 CTL_ERROR_REPORT, 13667 csevent_LogType_Trace, 13668 csevent_Severity_Information, 13669 csevent_AlertLevel_Green, 13670 csevent_FRU_Firmware, 13671 csevent_FRU_Unknown, 13672 "High CTL error volume, %d prints " 13673 "skipped", skipped_prints); 13674#endif 13675 } 13676 if (bootverbose || verbose > 0) 13677 ctl_io_error_print(io, NULL); 13678 } 13679 } 13680 break; 13681 } 13682 case CTL_IO_TASK: 13683 if (bootverbose || verbose > 0) 13684 ctl_io_error_print(io, NULL); 13685 break; 13686 default: 13687 break; 13688 } 13689 13690 /* 13691 * Tell the FETD or the other shelf controller we're done with this 13692 * command. Note that only SCSI commands get to this point. Task 13693 * management commands are completed above. 13694 * 13695 * We only send status to the other controller if we're in XFER 13696 * mode. In SER_ONLY mode, the I/O is done on the controller that 13697 * received the I/O (from CTL's perspective), and so the status is 13698 * generated there. 13699 * 13700 * XXX KDM if we hold the lock here, we could cause a deadlock 13701 * if the frontend comes back in in this context to queue 13702 * something. 13703 */ 13704 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13705 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13706 union ctl_ha_msg msg; 13707 13708 memset(&msg, 0, sizeof(msg)); 13709 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13710 msg.hdr.original_sc = io->io_hdr.original_sc; 13711 msg.hdr.nexus = io->io_hdr.nexus; 13712 msg.hdr.status = io->io_hdr.status; 13713 msg.scsi.scsi_status = io->scsiio.scsi_status; 13714 msg.scsi.tag_num = io->scsiio.tag_num; 13715 msg.scsi.tag_type = io->scsiio.tag_type; 13716 msg.scsi.sense_len = io->scsiio.sense_len; 13717 msg.scsi.sense_residual = io->scsiio.sense_residual; 13718 msg.scsi.residual = io->scsiio.residual; 13719 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13720 sizeof(io->scsiio.sense_data)); 13721 /* 13722 * We copy this whether or not this is an I/O-related 13723 * command. Otherwise, we'd have to go and check to see 13724 * whether it's a read/write command, and it really isn't 13725 * worth it. 13726 */ 13727 memcpy(&msg.scsi.lbalen, 13728 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13729 sizeof(msg.scsi.lbalen)); 13730 13731 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13732 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13733 /* XXX do something here */ 13734 } 13735 13736 ctl_free_io(io); 13737 } else 13738 fe_done(io); 13739 13740bailout: 13741 13742 return (CTL_RETVAL_COMPLETE); 13743} 13744 13745#ifdef CTL_WITH_CA 13746/* 13747 * Front end should call this if it doesn't do autosense. When the request 13748 * sense comes back in from the initiator, we'll dequeue this and send it. 13749 */ 13750int 13751ctl_queue_sense(union ctl_io *io) 13752{ 13753 struct ctl_lun *lun; 13754 struct ctl_softc *ctl_softc; 13755 uint32_t initidx, targ_lun; 13756 13757 ctl_softc = control_softc; 13758 13759 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13760 13761 /* 13762 * LUN lookup will likely move to the ctl_work_thread() once we 13763 * have our new queueing infrastructure (that doesn't put things on 13764 * a per-LUN queue initially). That is so that we can handle 13765 * things like an INQUIRY to a LUN that we don't have enabled. We 13766 * can't deal with that right now. 13767 */ 13768 mtx_lock(&ctl_softc->ctl_lock); 13769 13770 /* 13771 * If we don't have a LUN for this, just toss the sense 13772 * information. 13773 */ 13774 targ_lun = io->io_hdr.nexus.targ_lun; 13775 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13776 if ((targ_lun < CTL_MAX_LUNS) 13777 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13778 lun = ctl_softc->ctl_luns[targ_lun]; 13779 else 13780 goto bailout; 13781 13782 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13783 13784 mtx_lock(&lun->lun_lock); 13785 /* 13786 * Already have CA set for this LUN...toss the sense information. 13787 */ 13788 if (ctl_is_set(lun->have_ca, initidx)) { 13789 mtx_unlock(&lun->lun_lock); 13790 goto bailout; 13791 } 13792 13793 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13794 ctl_min(sizeof(lun->pending_sense[initidx]), 13795 sizeof(io->scsiio.sense_data))); 13796 ctl_set_mask(lun->have_ca, initidx); 13797 mtx_unlock(&lun->lun_lock); 13798 13799bailout: 13800 mtx_unlock(&ctl_softc->ctl_lock); 13801 13802 ctl_free_io(io); 13803 13804 return (CTL_RETVAL_COMPLETE); 13805} 13806#endif 13807 13808/* 13809 * Primary command inlet from frontend ports. All SCSI and task I/O 13810 * requests must go through this function. 13811 */ 13812int 13813ctl_queue(union ctl_io *io) 13814{ 13815 struct ctl_softc *ctl_softc; 13816 13817 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13818 13819 ctl_softc = control_softc; 13820 13821#ifdef CTL_TIME_IO 13822 io->io_hdr.start_time = time_uptime; 13823 getbintime(&io->io_hdr.start_bt); 13824#endif /* CTL_TIME_IO */ 13825 13826 /* Map FE-specific LUN ID into global one. */ 13827 io->io_hdr.nexus.targ_mapped_lun = 13828 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13829 13830 switch (io->io_hdr.io_type) { 13831 case CTL_IO_SCSI: 13832 case CTL_IO_TASK: 13833 ctl_enqueue_incoming(io); 13834 break; 13835 default: 13836 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13837 return (EINVAL); 13838 } 13839 13840 return (CTL_RETVAL_COMPLETE); 13841} 13842 13843#ifdef CTL_IO_DELAY 13844static void 13845ctl_done_timer_wakeup(void *arg) 13846{ 13847 union ctl_io *io; 13848 13849 io = (union ctl_io *)arg; 13850 ctl_done(io); 13851} 13852#endif /* CTL_IO_DELAY */ 13853 13854void 13855ctl_done(union ctl_io *io) 13856{ 13857 struct ctl_softc *ctl_softc; 13858 13859 ctl_softc = control_softc; 13860 13861 /* 13862 * Enable this to catch duplicate completion issues. 13863 */ 13864#if 0 13865 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13866 printf("%s: type %d msg %d cdb %x iptl: " 13867 "%d:%d:%d:%d tag 0x%04x " 13868 "flag %#x status %x\n", 13869 __func__, 13870 io->io_hdr.io_type, 13871 io->io_hdr.msg_type, 13872 io->scsiio.cdb[0], 13873 io->io_hdr.nexus.initid.id, 13874 io->io_hdr.nexus.targ_port, 13875 io->io_hdr.nexus.targ_target.id, 13876 io->io_hdr.nexus.targ_lun, 13877 (io->io_hdr.io_type == 13878 CTL_IO_TASK) ? 13879 io->taskio.tag_num : 13880 io->scsiio.tag_num, 13881 io->io_hdr.flags, 13882 io->io_hdr.status); 13883 } else 13884 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13885#endif 13886 13887 /* 13888 * This is an internal copy of an I/O, and should not go through 13889 * the normal done processing logic. 13890 */ 13891 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13892 return; 13893 13894 /* 13895 * We need to send a msg to the serializing shelf to finish the IO 13896 * as well. We don't send a finish message to the other shelf if 13897 * this is a task management command. Task management commands 13898 * aren't serialized in the OOA queue, but rather just executed on 13899 * both shelf controllers for commands that originated on that 13900 * controller. 13901 */ 13902 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13903 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13904 union ctl_ha_msg msg_io; 13905 13906 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13907 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13908 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13909 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13910 } 13911 /* continue on to finish IO */ 13912 } 13913#ifdef CTL_IO_DELAY 13914 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13915 struct ctl_lun *lun; 13916 13917 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13918 13919 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13920 } else { 13921 struct ctl_lun *lun; 13922 13923 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13924 13925 if ((lun != NULL) 13926 && (lun->delay_info.done_delay > 0)) { 13927 struct callout *callout; 13928 13929 callout = (struct callout *)&io->io_hdr.timer_bytes; 13930 callout_init(callout, /*mpsafe*/ 1); 13931 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13932 callout_reset(callout, 13933 lun->delay_info.done_delay * hz, 13934 ctl_done_timer_wakeup, io); 13935 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13936 lun->delay_info.done_delay = 0; 13937 return; 13938 } 13939 } 13940#endif /* CTL_IO_DELAY */ 13941 13942 ctl_enqueue_done(io); 13943} 13944 13945int 13946ctl_isc(struct ctl_scsiio *ctsio) 13947{ 13948 struct ctl_lun *lun; 13949 int retval; 13950 13951 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13952 13953 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13954 13955 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13956 13957 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13958 13959 return (retval); 13960} 13961 13962 13963static void 13964ctl_work_thread(void *arg) 13965{ 13966 struct ctl_thread *thr = (struct ctl_thread *)arg; 13967 struct ctl_softc *softc = thr->ctl_softc; 13968 union ctl_io *io; 13969 int retval; 13970 13971 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13972 13973 for (;;) { 13974 retval = 0; 13975 13976 /* 13977 * We handle the queues in this order: 13978 * - ISC 13979 * - done queue (to free up resources, unblock other commands) 13980 * - RtR queue 13981 * - incoming queue 13982 * 13983 * If those queues are empty, we break out of the loop and 13984 * go to sleep. 13985 */ 13986 mtx_lock(&thr->queue_lock); 13987 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13988 if (io != NULL) { 13989 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13990 mtx_unlock(&thr->queue_lock); 13991 ctl_handle_isc(io); 13992 continue; 13993 } 13994 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13995 if (io != NULL) { 13996 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13997 /* clear any blocked commands, call fe_done */ 13998 mtx_unlock(&thr->queue_lock); 13999 retval = ctl_process_done(io); 14000 continue; 14001 } 14002 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14003 if (io != NULL) { 14004 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14005 mtx_unlock(&thr->queue_lock); 14006 if (io->io_hdr.io_type == CTL_IO_TASK) 14007 ctl_run_task(io); 14008 else 14009 ctl_scsiio_precheck(softc, &io->scsiio); 14010 continue; 14011 } 14012 if (!ctl_pause_rtr) { 14013 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14014 if (io != NULL) { 14015 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14016 mtx_unlock(&thr->queue_lock); 14017 retval = ctl_scsiio(&io->scsiio); 14018 if (retval != CTL_RETVAL_COMPLETE) 14019 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14020 continue; 14021 } 14022 } 14023 14024 /* Sleep until we have something to do. */ 14025 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14026 } 14027} 14028 14029static void 14030ctl_lun_thread(void *arg) 14031{ 14032 struct ctl_softc *softc = (struct ctl_softc *)arg; 14033 struct ctl_be_lun *be_lun; 14034 int retval; 14035 14036 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14037 14038 for (;;) { 14039 retval = 0; 14040 mtx_lock(&softc->ctl_lock); 14041 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14042 if (be_lun != NULL) { 14043 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14044 mtx_unlock(&softc->ctl_lock); 14045 ctl_create_lun(be_lun); 14046 continue; 14047 } 14048 14049 /* Sleep until we have something to do. */ 14050 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14051 PDROP | PRIBIO, "-", 0); 14052 } 14053} 14054 14055static void 14056ctl_enqueue_incoming(union ctl_io *io) 14057{ 14058 struct ctl_softc *softc = control_softc; 14059 struct ctl_thread *thr; 14060 u_int idx; 14061 14062 idx = (io->io_hdr.nexus.targ_port * 127 + 14063 io->io_hdr.nexus.initid.id) % worker_threads; 14064 thr = &softc->threads[idx]; 14065 mtx_lock(&thr->queue_lock); 14066 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14067 mtx_unlock(&thr->queue_lock); 14068 wakeup(thr); 14069} 14070 14071static void 14072ctl_enqueue_rtr(union ctl_io *io) 14073{ 14074 struct ctl_softc *softc = control_softc; 14075 struct ctl_thread *thr; 14076 14077 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14078 mtx_lock(&thr->queue_lock); 14079 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14080 mtx_unlock(&thr->queue_lock); 14081 wakeup(thr); 14082} 14083 14084static void 14085ctl_enqueue_done(union ctl_io *io) 14086{ 14087 struct ctl_softc *softc = control_softc; 14088 struct ctl_thread *thr; 14089 14090 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14091 mtx_lock(&thr->queue_lock); 14092 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14093 mtx_unlock(&thr->queue_lock); 14094 wakeup(thr); 14095} 14096 14097static void 14098ctl_enqueue_isc(union ctl_io *io) 14099{ 14100 struct ctl_softc *softc = control_softc; 14101 struct ctl_thread *thr; 14102 14103 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14104 mtx_lock(&thr->queue_lock); 14105 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14106 mtx_unlock(&thr->queue_lock); 14107 wakeup(thr); 14108} 14109 14110/* Initialization and failover */ 14111 14112void 14113ctl_init_isc_msg(void) 14114{ 14115 printf("CTL: Still calling this thing\n"); 14116} 14117 14118/* 14119 * Init component 14120 * Initializes component into configuration defined by bootMode 14121 * (see hasc-sv.c) 14122 * returns hasc_Status: 14123 * OK 14124 * ERROR - fatal error 14125 */ 14126static ctl_ha_comp_status 14127ctl_isc_init(struct ctl_ha_component *c) 14128{ 14129 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14130 14131 c->status = ret; 14132 return ret; 14133} 14134 14135/* Start component 14136 * Starts component in state requested. If component starts successfully, 14137 * it must set its own state to the requestrd state 14138 * When requested state is HASC_STATE_HA, the component may refine it 14139 * by adding _SLAVE or _MASTER flags. 14140 * Currently allowed state transitions are: 14141 * UNKNOWN->HA - initial startup 14142 * UNKNOWN->SINGLE - initial startup when no parter detected 14143 * HA->SINGLE - failover 14144 * returns ctl_ha_comp_status: 14145 * OK - component successfully started in requested state 14146 * FAILED - could not start the requested state, failover may 14147 * be possible 14148 * ERROR - fatal error detected, no future startup possible 14149 */ 14150static ctl_ha_comp_status 14151ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14152{ 14153 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14154 14155 printf("%s: go\n", __func__); 14156 14157 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14158 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14159 ctl_is_single = 0; 14160 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14161 != CTL_HA_STATUS_SUCCESS) { 14162 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14163 ret = CTL_HA_COMP_STATUS_ERROR; 14164 } 14165 } else if (CTL_HA_STATE_IS_HA(c->state) 14166 && CTL_HA_STATE_IS_SINGLE(state)){ 14167 // HA->SINGLE transition 14168 ctl_failover(); 14169 ctl_is_single = 1; 14170 } else { 14171 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14172 c->state, state); 14173 ret = CTL_HA_COMP_STATUS_ERROR; 14174 } 14175 if (CTL_HA_STATE_IS_SINGLE(state)) 14176 ctl_is_single = 1; 14177 14178 c->state = state; 14179 c->status = ret; 14180 return ret; 14181} 14182 14183/* 14184 * Quiesce component 14185 * The component must clear any error conditions (set status to OK) and 14186 * prepare itself to another Start call 14187 * returns ctl_ha_comp_status: 14188 * OK 14189 * ERROR 14190 */ 14191static ctl_ha_comp_status 14192ctl_isc_quiesce(struct ctl_ha_component *c) 14193{ 14194 int ret = CTL_HA_COMP_STATUS_OK; 14195 14196 ctl_pause_rtr = 1; 14197 c->status = ret; 14198 return ret; 14199} 14200 14201struct ctl_ha_component ctl_ha_component_ctlisc = 14202{ 14203 .name = "CTL ISC", 14204 .state = CTL_HA_STATE_UNKNOWN, 14205 .init = ctl_isc_init, 14206 .start = ctl_isc_start, 14207 .quiesce = ctl_isc_quiesce 14208}; 14209 14210/* 14211 * vim: ts=8 14212 */ 14213