ctl.c revision 268690
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 268690 2014-07-15 17:12:37Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ 0, 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 /*reserved*/0, 286 /*aen_holdoff_period*/{0, 0} 287}; 288 289static struct scsi_control_page control_page_changeable = { 290 /*page_code*/SMS_CONTROL_MODE_PAGE, 291 /*page_length*/sizeof(struct scsi_control_page) - 2, 292 /*rlec*/SCP_DSENSE, 293 /*queue_flags*/0, 294 /*eca_and_aen*/0, 295 /*reserved*/0, 296 /*aen_holdoff_period*/{0, 0} 297}; 298 299 300/* 301 * XXX KDM move these into the softc. 302 */ 303static int rcv_sync_msg; 304static int persis_offset; 305static uint8_t ctl_pause_rtr; 306static int ctl_is_single = 1; 307static int index_to_aps_page; 308 309SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 310static int worker_threads = -1; 311TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 312SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 313 &worker_threads, 1, "Number of worker threads"); 314static int verbose = 0; 315TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 317 &verbose, 0, "Show SCSI errors returned to initiator"); 318 319/* 320 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 321 * SCSI Ports (0x88), Block limits (0xB0) and 322 * Logical Block Provisioning (0xB2) 323 */ 324#define SCSI_EVPD_NUM_SUPPORTED_PAGES 6 325 326static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 327 int param); 328static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 329static int ctl_init(void); 330void ctl_shutdown(void); 331static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 332static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 333static void ctl_ioctl_online(void *arg); 334static void ctl_ioctl_offline(void *arg); 335static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 336static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 337static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 338static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 339static int ctl_ioctl_submit_wait(union ctl_io *io); 340static void ctl_ioctl_datamove(union ctl_io *io); 341static void ctl_ioctl_done(union ctl_io *io); 342static void ctl_ioctl_hard_startstop_callback(void *arg, 343 struct cfi_metatask *metatask); 344static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 345static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 346 struct ctl_ooa *ooa_hdr, 347 struct ctl_ooa_entry *kern_entries); 348static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 349 struct thread *td); 350uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 351uint32_t ctl_port_idx(int port_num); 352static uint32_t ctl_map_lun(int port_num, uint32_t lun); 353static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 354#ifdef unused 355static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 356 uint32_t targ_target, uint32_t targ_lun, 357 int can_wait); 358static void ctl_kfree_io(union ctl_io *io); 359#endif /* unused */ 360static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 361 struct ctl_be_lun *be_lun, struct ctl_id target_id); 362static int ctl_free_lun(struct ctl_lun *lun); 363static void ctl_create_lun(struct ctl_be_lun *be_lun); 364/** 365static void ctl_failover_change_pages(struct ctl_softc *softc, 366 struct ctl_scsiio *ctsio, int master); 367**/ 368 369static int ctl_do_mode_select(union ctl_io *io); 370static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 371 uint64_t res_key, uint64_t sa_res_key, 372 uint8_t type, uint32_t residx, 373 struct ctl_scsiio *ctsio, 374 struct scsi_per_res_out *cdb, 375 struct scsi_per_res_out_parms* param); 376static void ctl_pro_preempt_other(struct ctl_lun *lun, 377 union ctl_ha_msg *msg); 378static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 379static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 380static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 381static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 383 int alloc_len); 384static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 385 int alloc_len); 386static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 388static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 389static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 390static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 391static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 392 union ctl_io *ooa_io); 393static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 394 union ctl_io *starting_io); 395static int ctl_check_blocked(struct ctl_lun *lun); 396static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 397 struct ctl_lun *lun, 398 const struct ctl_cmd_entry *entry, 399 struct ctl_scsiio *ctsio); 400//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 401static void ctl_failover(void); 402static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 403 struct ctl_scsiio *ctsio); 404static int ctl_scsiio(struct ctl_scsiio *ctsio); 405 406static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 407static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 408 ctl_ua_type ua_type); 409static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 410 ctl_ua_type ua_type); 411static int ctl_abort_task(union ctl_io *io); 412static int ctl_abort_task_set(union ctl_io *io); 413static int ctl_i_t_nexus_reset(union ctl_io *io); 414static void ctl_run_task(union ctl_io *io); 415#ifdef CTL_IO_DELAY 416static void ctl_datamove_timer_wakeup(void *arg); 417static void ctl_done_timer_wakeup(void *arg); 418#endif /* CTL_IO_DELAY */ 419 420static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 421static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 422static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 423static void ctl_datamove_remote_write(union ctl_io *io); 424static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 425static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 426static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 427static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 428 ctl_ha_dt_cb callback); 429static void ctl_datamove_remote_read(union ctl_io *io); 430static void ctl_datamove_remote(union ctl_io *io); 431static int ctl_process_done(union ctl_io *io); 432static void ctl_lun_thread(void *arg); 433static void ctl_work_thread(void *arg); 434static void ctl_enqueue_incoming(union ctl_io *io); 435static void ctl_enqueue_rtr(union ctl_io *io); 436static void ctl_enqueue_done(union ctl_io *io); 437static void ctl_enqueue_isc(union ctl_io *io); 438static const struct ctl_cmd_entry * 439 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 440static const struct ctl_cmd_entry * 441 ctl_validate_command(struct ctl_scsiio *ctsio); 442static int ctl_cmd_applicable(uint8_t lun_type, 443 const struct ctl_cmd_entry *entry); 444 445/* 446 * Load the serialization table. This isn't very pretty, but is probably 447 * the easiest way to do it. 448 */ 449#include "ctl_ser_table.c" 450 451/* 452 * We only need to define open, close and ioctl routines for this driver. 453 */ 454static struct cdevsw ctl_cdevsw = { 455 .d_version = D_VERSION, 456 .d_flags = 0, 457 .d_open = ctl_open, 458 .d_close = ctl_close, 459 .d_ioctl = ctl_ioctl, 460 .d_name = "ctl", 461}; 462 463 464MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 465MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 466 467static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 468 469static moduledata_t ctl_moduledata = { 470 "ctl", 471 ctl_module_event_handler, 472 NULL 473}; 474 475DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 476MODULE_VERSION(ctl, 1); 477 478static struct ctl_frontend ioctl_frontend = 479{ 480 .name = "ioctl", 481}; 482 483static void 484ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 485 union ctl_ha_msg *msg_info) 486{ 487 struct ctl_scsiio *ctsio; 488 489 if (msg_info->hdr.original_sc == NULL) { 490 printf("%s: original_sc == NULL!\n", __func__); 491 /* XXX KDM now what? */ 492 return; 493 } 494 495 ctsio = &msg_info->hdr.original_sc->scsiio; 496 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 497 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 498 ctsio->io_hdr.status = msg_info->hdr.status; 499 ctsio->scsi_status = msg_info->scsi.scsi_status; 500 ctsio->sense_len = msg_info->scsi.sense_len; 501 ctsio->sense_residual = msg_info->scsi.sense_residual; 502 ctsio->residual = msg_info->scsi.residual; 503 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 504 sizeof(ctsio->sense_data)); 505 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 506 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 507 ctl_enqueue_isc((union ctl_io *)ctsio); 508} 509 510static void 511ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 512 union ctl_ha_msg *msg_info) 513{ 514 struct ctl_scsiio *ctsio; 515 516 if (msg_info->hdr.serializing_sc == NULL) { 517 printf("%s: serializing_sc == NULL!\n", __func__); 518 /* XXX KDM now what? */ 519 return; 520 } 521 522 ctsio = &msg_info->hdr.serializing_sc->scsiio; 523#if 0 524 /* 525 * Attempt to catch the situation where an I/O has 526 * been freed, and we're using it again. 527 */ 528 if (ctsio->io_hdr.io_type == 0xff) { 529 union ctl_io *tmp_io; 530 tmp_io = (union ctl_io *)ctsio; 531 printf("%s: %p use after free!\n", __func__, 532 ctsio); 533 printf("%s: type %d msg %d cdb %x iptl: " 534 "%d:%d:%d:%d tag 0x%04x " 535 "flag %#x status %x\n", 536 __func__, 537 tmp_io->io_hdr.io_type, 538 tmp_io->io_hdr.msg_type, 539 tmp_io->scsiio.cdb[0], 540 tmp_io->io_hdr.nexus.initid.id, 541 tmp_io->io_hdr.nexus.targ_port, 542 tmp_io->io_hdr.nexus.targ_target.id, 543 tmp_io->io_hdr.nexus.targ_lun, 544 (tmp_io->io_hdr.io_type == 545 CTL_IO_TASK) ? 546 tmp_io->taskio.tag_num : 547 tmp_io->scsiio.tag_num, 548 tmp_io->io_hdr.flags, 549 tmp_io->io_hdr.status); 550 } 551#endif 552 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 553 ctl_enqueue_isc((union ctl_io *)ctsio); 554} 555 556/* 557 * ISC (Inter Shelf Communication) event handler. Events from the HA 558 * subsystem come in here. 559 */ 560static void 561ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 562{ 563 struct ctl_softc *ctl_softc; 564 union ctl_io *io; 565 struct ctl_prio *presio; 566 ctl_ha_status isc_status; 567 568 ctl_softc = control_softc; 569 io = NULL; 570 571 572#if 0 573 printf("CTL: Isc Msg event %d\n", event); 574#endif 575 if (event == CTL_HA_EVT_MSG_RECV) { 576 union ctl_ha_msg msg_info; 577 578 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 579 sizeof(msg_info), /*wait*/ 0); 580#if 0 581 printf("CTL: msg_type %d\n", msg_info.msg_type); 582#endif 583 if (isc_status != 0) { 584 printf("Error receiving message, status = %d\n", 585 isc_status); 586 return; 587 } 588 589 switch (msg_info.hdr.msg_type) { 590 case CTL_MSG_SERIALIZE: 591#if 0 592 printf("Serialize\n"); 593#endif 594 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 595 if (io == NULL) { 596 printf("ctl_isc_event_handler: can't allocate " 597 "ctl_io!\n"); 598 /* Bad Juju */ 599 /* Need to set busy and send msg back */ 600 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 601 msg_info.hdr.status = CTL_SCSI_ERROR; 602 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 603 msg_info.scsi.sense_len = 0; 604 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 605 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 606 } 607 goto bailout; 608 } 609 ctl_zero_io(io); 610 // populate ctsio from msg_info 611 io->io_hdr.io_type = CTL_IO_SCSI; 612 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 613 io->io_hdr.original_sc = msg_info.hdr.original_sc; 614#if 0 615 printf("pOrig %x\n", (int)msg_info.original_sc); 616#endif 617 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 618 CTL_FLAG_IO_ACTIVE; 619 /* 620 * If we're in serialization-only mode, we don't 621 * want to go through full done processing. Thus 622 * the COPY flag. 623 * 624 * XXX KDM add another flag that is more specific. 625 */ 626 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 627 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 628 io->io_hdr.nexus = msg_info.hdr.nexus; 629#if 0 630 printf("targ %d, port %d, iid %d, lun %d\n", 631 io->io_hdr.nexus.targ_target.id, 632 io->io_hdr.nexus.targ_port, 633 io->io_hdr.nexus.initid.id, 634 io->io_hdr.nexus.targ_lun); 635#endif 636 io->scsiio.tag_num = msg_info.scsi.tag_num; 637 io->scsiio.tag_type = msg_info.scsi.tag_type; 638 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 639 CTL_MAX_CDBLEN); 640 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 641 const struct ctl_cmd_entry *entry; 642 643 entry = ctl_get_cmd_entry(&io->scsiio); 644 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 645 io->io_hdr.flags |= 646 entry->flags & CTL_FLAG_DATA_MASK; 647 } 648 ctl_enqueue_isc(io); 649 break; 650 651 /* Performed on the Originating SC, XFER mode only */ 652 case CTL_MSG_DATAMOVE: { 653 struct ctl_sg_entry *sgl; 654 int i, j; 655 656 io = msg_info.hdr.original_sc; 657 if (io == NULL) { 658 printf("%s: original_sc == NULL!\n", __func__); 659 /* XXX KDM do something here */ 660 break; 661 } 662 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 663 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 664 /* 665 * Keep track of this, we need to send it back over 666 * when the datamove is complete. 667 */ 668 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 669 670 if (msg_info.dt.sg_sequence == 0) { 671 /* 672 * XXX KDM we use the preallocated S/G list 673 * here, but we'll need to change this to 674 * dynamic allocation if we need larger S/G 675 * lists. 676 */ 677 if (msg_info.dt.kern_sg_entries > 678 sizeof(io->io_hdr.remote_sglist) / 679 sizeof(io->io_hdr.remote_sglist[0])) { 680 printf("%s: number of S/G entries " 681 "needed %u > allocated num %zd\n", 682 __func__, 683 msg_info.dt.kern_sg_entries, 684 sizeof(io->io_hdr.remote_sglist)/ 685 sizeof(io->io_hdr.remote_sglist[0])); 686 687 /* 688 * XXX KDM send a message back to 689 * the other side to shut down the 690 * DMA. The error will come back 691 * through via the normal channel. 692 */ 693 break; 694 } 695 sgl = io->io_hdr.remote_sglist; 696 memset(sgl, 0, 697 sizeof(io->io_hdr.remote_sglist)); 698 699 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 700 701 io->scsiio.kern_sg_entries = 702 msg_info.dt.kern_sg_entries; 703 io->scsiio.rem_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.kern_data_len = 706 msg_info.dt.kern_data_len; 707 io->scsiio.kern_total_len = 708 msg_info.dt.kern_total_len; 709 io->scsiio.kern_data_resid = 710 msg_info.dt.kern_data_resid; 711 io->scsiio.kern_rel_offset = 712 msg_info.dt.kern_rel_offset; 713 /* 714 * Clear out per-DMA flags. 715 */ 716 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 717 /* 718 * Add per-DMA flags that are set for this 719 * particular DMA request. 720 */ 721 io->io_hdr.flags |= msg_info.dt.flags & 722 CTL_FLAG_RDMA_MASK; 723 } else 724 sgl = (struct ctl_sg_entry *) 725 io->scsiio.kern_data_ptr; 726 727 for (i = msg_info.dt.sent_sg_entries, j = 0; 728 i < (msg_info.dt.sent_sg_entries + 729 msg_info.dt.cur_sg_entries); i++, j++) { 730 sgl[i].addr = msg_info.dt.sg_list[j].addr; 731 sgl[i].len = msg_info.dt.sg_list[j].len; 732 733#if 0 734 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 735 __func__, 736 msg_info.dt.sg_list[j].addr, 737 msg_info.dt.sg_list[j].len, 738 sgl[i].addr, sgl[i].len, j, i); 739#endif 740 } 741#if 0 742 memcpy(&sgl[msg_info.dt.sent_sg_entries], 743 msg_info.dt.sg_list, 744 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 745#endif 746 747 /* 748 * If this is the last piece of the I/O, we've got 749 * the full S/G list. Queue processing in the thread. 750 * Otherwise wait for the next piece. 751 */ 752 if (msg_info.dt.sg_last != 0) 753 ctl_enqueue_isc(io); 754 break; 755 } 756 /* Performed on the Serializing (primary) SC, XFER mode only */ 757 case CTL_MSG_DATAMOVE_DONE: { 758 if (msg_info.hdr.serializing_sc == NULL) { 759 printf("%s: serializing_sc == NULL!\n", 760 __func__); 761 /* XXX KDM now what? */ 762 break; 763 } 764 /* 765 * We grab the sense information here in case 766 * there was a failure, so we can return status 767 * back to the initiator. 768 */ 769 io = msg_info.hdr.serializing_sc; 770 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 771 io->io_hdr.status = msg_info.hdr.status; 772 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 773 io->scsiio.sense_len = msg_info.scsi.sense_len; 774 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 775 io->io_hdr.port_status = msg_info.scsi.fetd_status; 776 io->scsiio.residual = msg_info.scsi.residual; 777 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 778 sizeof(io->scsiio.sense_data)); 779 ctl_enqueue_isc(io); 780 break; 781 } 782 783 /* Preformed on Originating SC, SER_ONLY mode */ 784 case CTL_MSG_R2R: 785 io = msg_info.hdr.original_sc; 786 if (io == NULL) { 787 printf("%s: Major Bummer\n", __func__); 788 return; 789 } else { 790#if 0 791 printf("pOrig %x\n",(int) ctsio); 792#endif 793 } 794 io->io_hdr.msg_type = CTL_MSG_R2R; 795 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 796 ctl_enqueue_isc(io); 797 break; 798 799 /* 800 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 801 * mode. 802 * Performed on the Originating (i.e. secondary) SC in XFER 803 * mode 804 */ 805 case CTL_MSG_FINISH_IO: 806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 807 ctl_isc_handler_finish_xfer(ctl_softc, 808 &msg_info); 809 else 810 ctl_isc_handler_finish_ser_only(ctl_softc, 811 &msg_info); 812 break; 813 814 /* Preformed on Originating SC */ 815 case CTL_MSG_BAD_JUJU: 816 io = msg_info.hdr.original_sc; 817 if (io == NULL) { 818 printf("%s: Bad JUJU!, original_sc is NULL!\n", 819 __func__); 820 break; 821 } 822 ctl_copy_sense_data(&msg_info, io); 823 /* 824 * IO should have already been cleaned up on other 825 * SC so clear this flag so we won't send a message 826 * back to finish the IO there. 827 */ 828 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 829 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 830 831 /* io = msg_info.hdr.serializing_sc; */ 832 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 833 ctl_enqueue_isc(io); 834 break; 835 836 /* Handle resets sent from the other side */ 837 case CTL_MSG_MANAGE_TASKS: { 838 struct ctl_taskio *taskio; 839 taskio = (struct ctl_taskio *)ctl_alloc_io( 840 (void *)ctl_softc->othersc_pool); 841 if (taskio == NULL) { 842 printf("ctl_isc_event_handler: can't allocate " 843 "ctl_io!\n"); 844 /* Bad Juju */ 845 /* should I just call the proper reset func 846 here??? */ 847 goto bailout; 848 } 849 ctl_zero_io((union ctl_io *)taskio); 850 taskio->io_hdr.io_type = CTL_IO_TASK; 851 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 852 taskio->io_hdr.nexus = msg_info.hdr.nexus; 853 taskio->task_action = msg_info.task.task_action; 854 taskio->tag_num = msg_info.task.tag_num; 855 taskio->tag_type = msg_info.task.tag_type; 856#ifdef CTL_TIME_IO 857 taskio->io_hdr.start_time = time_uptime; 858 getbintime(&taskio->io_hdr.start_bt); 859#if 0 860 cs_prof_gettime(&taskio->io_hdr.start_ticks); 861#endif 862#endif /* CTL_TIME_IO */ 863 ctl_run_task((union ctl_io *)taskio); 864 break; 865 } 866 /* Persistent Reserve action which needs attention */ 867 case CTL_MSG_PERS_ACTION: 868 presio = (struct ctl_prio *)ctl_alloc_io( 869 (void *)ctl_softc->othersc_pool); 870 if (presio == NULL) { 871 printf("ctl_isc_event_handler: can't allocate " 872 "ctl_io!\n"); 873 /* Bad Juju */ 874 /* Need to set busy and send msg back */ 875 goto bailout; 876 } 877 ctl_zero_io((union ctl_io *)presio); 878 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 879 presio->pr_msg = msg_info.pr; 880 ctl_enqueue_isc((union ctl_io *)presio); 881 break; 882 case CTL_MSG_SYNC_FE: 883 rcv_sync_msg = 1; 884 break; 885 case CTL_MSG_APS_LOCK: { 886 // It's quicker to execute this then to 887 // queue it. 888 struct ctl_lun *lun; 889 struct ctl_page_index *page_index; 890 struct copan_aps_subpage *current_sp; 891 uint32_t targ_lun; 892 893 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 894 lun = ctl_softc->ctl_luns[targ_lun]; 895 mtx_lock(&lun->lun_lock); 896 page_index = &lun->mode_pages.index[index_to_aps_page]; 897 current_sp = (struct copan_aps_subpage *) 898 (page_index->page_data + 899 (page_index->page_len * CTL_PAGE_CURRENT)); 900 901 current_sp->lock_active = msg_info.aps.lock_flag; 902 mtx_unlock(&lun->lun_lock); 903 break; 904 } 905 default: 906 printf("How did I get here?\n"); 907 } 908 } else if (event == CTL_HA_EVT_MSG_SENT) { 909 if (param != CTL_HA_STATUS_SUCCESS) { 910 printf("Bad status from ctl_ha_msg_send status %d\n", 911 param); 912 } 913 return; 914 } else if (event == CTL_HA_EVT_DISCONNECT) { 915 printf("CTL: Got a disconnect from Isc\n"); 916 return; 917 } else { 918 printf("ctl_isc_event_handler: Unknown event %d\n", event); 919 return; 920 } 921 922bailout: 923 return; 924} 925 926static void 927ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 928{ 929 struct scsi_sense_data *sense; 930 931 sense = &dest->scsiio.sense_data; 932 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 933 dest->scsiio.scsi_status = src->scsi.scsi_status; 934 dest->scsiio.sense_len = src->scsi.sense_len; 935 dest->io_hdr.status = src->hdr.status; 936} 937 938static int 939ctl_init(void) 940{ 941 struct ctl_softc *softc; 942 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 943 struct ctl_port *port; 944 uint8_t sc_id =0; 945 int i, error, retval; 946 //int isc_retval; 947 948 retval = 0; 949 ctl_pause_rtr = 0; 950 rcv_sync_msg = 0; 951 952 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 953 M_WAITOK | M_ZERO); 954 softc = control_softc; 955 956 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 957 "cam/ctl"); 958 959 softc->dev->si_drv1 = softc; 960 961 /* 962 * By default, return a "bad LUN" peripheral qualifier for unknown 963 * LUNs. The user can override this default using the tunable or 964 * sysctl. See the comment in ctl_inquiry_std() for more details. 965 */ 966 softc->inquiry_pq_no_lun = 1; 967 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 968 &softc->inquiry_pq_no_lun); 969 sysctl_ctx_init(&softc->sysctl_ctx); 970 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 971 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 972 CTLFLAG_RD, 0, "CAM Target Layer"); 973 974 if (softc->sysctl_tree == NULL) { 975 printf("%s: unable to allocate sysctl tree\n", __func__); 976 destroy_dev(softc->dev); 977 free(control_softc, M_DEVBUF); 978 control_softc = NULL; 979 return (ENOMEM); 980 } 981 982 SYSCTL_ADD_INT(&softc->sysctl_ctx, 983 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 984 "inquiry_pq_no_lun", CTLFLAG_RW, 985 &softc->inquiry_pq_no_lun, 0, 986 "Report no lun possible for invalid LUNs"); 987 988 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 989 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 990 softc->open_count = 0; 991 992 /* 993 * Default to actually sending a SYNCHRONIZE CACHE command down to 994 * the drive. 995 */ 996 softc->flags = CTL_FLAG_REAL_SYNC; 997 998 /* 999 * In Copan's HA scheme, the "master" and "slave" roles are 1000 * figured out through the slot the controller is in. Although it 1001 * is an active/active system, someone has to be in charge. 1002 */ 1003#ifdef NEEDTOPORT 1004 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1005#endif 1006 1007 if (sc_id == 0) { 1008 softc->flags |= CTL_FLAG_MASTER_SHELF; 1009 persis_offset = 0; 1010 } else 1011 persis_offset = CTL_MAX_INITIATORS; 1012 1013 /* 1014 * XXX KDM need to figure out where we want to get our target ID 1015 * and WWID. Is it different on each port? 1016 */ 1017 softc->target.id = 0; 1018 softc->target.wwid[0] = 0x12345678; 1019 softc->target.wwid[1] = 0x87654321; 1020 STAILQ_INIT(&softc->lun_list); 1021 STAILQ_INIT(&softc->pending_lun_queue); 1022 STAILQ_INIT(&softc->fe_list); 1023 STAILQ_INIT(&softc->port_list); 1024 STAILQ_INIT(&softc->be_list); 1025 STAILQ_INIT(&softc->io_pools); 1026 1027 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1028 &internal_pool)!= 0){ 1029 printf("ctl: can't allocate %d entry internal pool, " 1030 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1031 return (ENOMEM); 1032 } 1033 1034 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1035 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1036 printf("ctl: can't allocate %d entry emergency pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1038 ctl_pool_free(internal_pool); 1039 return (ENOMEM); 1040 } 1041 1042 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1043 &other_pool) != 0) 1044 { 1045 printf("ctl: can't allocate %d entry other SC pool, " 1046 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1047 ctl_pool_free(internal_pool); 1048 ctl_pool_free(emergency_pool); 1049 return (ENOMEM); 1050 } 1051 1052 softc->internal_pool = internal_pool; 1053 softc->emergency_pool = emergency_pool; 1054 softc->othersc_pool = other_pool; 1055 1056 if (worker_threads <= 0) 1057 worker_threads = max(1, mp_ncpus / 4); 1058 if (worker_threads > CTL_MAX_THREADS) 1059 worker_threads = CTL_MAX_THREADS; 1060 1061 for (i = 0; i < worker_threads; i++) { 1062 struct ctl_thread *thr = &softc->threads[i]; 1063 1064 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1065 thr->ctl_softc = softc; 1066 STAILQ_INIT(&thr->incoming_queue); 1067 STAILQ_INIT(&thr->rtr_queue); 1068 STAILQ_INIT(&thr->done_queue); 1069 STAILQ_INIT(&thr->isc_queue); 1070 1071 error = kproc_kthread_add(ctl_work_thread, thr, 1072 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1073 if (error != 0) { 1074 printf("error creating CTL work thread!\n"); 1075 ctl_pool_free(internal_pool); 1076 ctl_pool_free(emergency_pool); 1077 ctl_pool_free(other_pool); 1078 return (error); 1079 } 1080 } 1081 error = kproc_kthread_add(ctl_lun_thread, softc, 1082 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1083 if (error != 0) { 1084 printf("error creating CTL lun thread!\n"); 1085 ctl_pool_free(internal_pool); 1086 ctl_pool_free(emergency_pool); 1087 ctl_pool_free(other_pool); 1088 return (error); 1089 } 1090 if (bootverbose) 1091 printf("ctl: CAM Target Layer loaded\n"); 1092 1093 /* 1094 * Initialize the initiator and portname mappings 1095 */ 1096 memset(softc->wwpn_iid, 0, sizeof(softc->wwpn_iid)); 1097 1098 /* 1099 * Initialize the ioctl front end. 1100 */ 1101 ctl_frontend_register(&ioctl_frontend); 1102 port = &softc->ioctl_info.port; 1103 port->frontend = &ioctl_frontend; 1104 sprintf(softc->ioctl_info.port_name, "ioctl"); 1105 port->port_type = CTL_PORT_IOCTL; 1106 port->num_requested_ctl_io = 100; 1107 port->port_name = softc->ioctl_info.port_name; 1108 port->port_online = ctl_ioctl_online; 1109 port->port_offline = ctl_ioctl_offline; 1110 port->onoff_arg = &softc->ioctl_info; 1111 port->lun_enable = ctl_ioctl_lun_enable; 1112 port->lun_disable = ctl_ioctl_lun_disable; 1113 port->targ_lun_arg = &softc->ioctl_info; 1114 port->fe_datamove = ctl_ioctl_datamove; 1115 port->fe_done = ctl_ioctl_done; 1116 port->max_targets = 15; 1117 port->max_target_id = 15; 1118 1119 if (ctl_port_register(&softc->ioctl_info.port, 1120 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1121 printf("ctl: ioctl front end registration failed, will " 1122 "continue anyway\n"); 1123 } 1124 1125#ifdef CTL_IO_DELAY 1126 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1127 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1128 sizeof(struct callout), CTL_TIMER_BYTES); 1129 return (EINVAL); 1130 } 1131#endif /* CTL_IO_DELAY */ 1132 1133 return (0); 1134} 1135 1136void 1137ctl_shutdown(void) 1138{ 1139 struct ctl_softc *softc; 1140 struct ctl_lun *lun, *next_lun; 1141 struct ctl_io_pool *pool; 1142 1143 softc = (struct ctl_softc *)control_softc; 1144 1145 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1146 printf("ctl: ioctl front end deregistration failed\n"); 1147 1148 mtx_lock(&softc->ctl_lock); 1149 1150 /* 1151 * Free up each LUN. 1152 */ 1153 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1154 next_lun = STAILQ_NEXT(lun, links); 1155 ctl_free_lun(lun); 1156 } 1157 1158 mtx_unlock(&softc->ctl_lock); 1159 1160 ctl_frontend_deregister(&ioctl_frontend); 1161 1162 /* 1163 * This will rip the rug out from under any FETDs or anyone else 1164 * that has a pool allocated. Since we increment our module 1165 * refcount any time someone outside the main CTL module allocates 1166 * a pool, we shouldn't have any problems here. The user won't be 1167 * able to unload the CTL module until client modules have 1168 * successfully unloaded. 1169 */ 1170 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1171 ctl_pool_free(pool); 1172 1173#if 0 1174 ctl_shutdown_thread(softc->work_thread); 1175 mtx_destroy(&softc->queue_lock); 1176#endif 1177 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(int32_t targ_port, uint32_t iid) 1374{ 1375 struct ctl_softc *softc; 1376 1377 softc = control_softc; 1378 1379 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1380 1381 if ((targ_port < 0) 1382 || (targ_port > CTL_MAX_PORTS)) { 1383 printf("%s: invalid port number %d\n", __func__, targ_port); 1384 return (1); 1385 } 1386 if (iid > CTL_MAX_INIT_PER_PORT) { 1387 printf("%s: initiator ID %u > maximun %u!\n", 1388 __func__, iid, CTL_MAX_INIT_PER_PORT); 1389 return (1); 1390 } 1391 1392 mtx_lock(&softc->ctl_lock); 1393 1394 softc->wwpn_iid[targ_port][iid].in_use = 0; 1395 1396 mtx_unlock(&softc->ctl_lock); 1397 1398 return (0); 1399} 1400 1401/* 1402 * Add an initiator to the initiator map. 1403 * Returns 0 for success, 1 for failure. 1404 */ 1405int 1406ctl_add_initiator(uint64_t wwpn, int32_t targ_port, uint32_t iid) 1407{ 1408 struct ctl_softc *softc; 1409 int retval; 1410 1411 softc = control_softc; 1412 1413 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1414 1415 retval = 0; 1416 1417 if ((targ_port < 0) 1418 || (targ_port > CTL_MAX_PORTS)) { 1419 printf("%s: invalid port number %d\n", __func__, targ_port); 1420 return (1); 1421 } 1422 if (iid > CTL_MAX_INIT_PER_PORT) { 1423 printf("%s: WWPN %#jx initiator ID %u > maximun %u!\n", 1424 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1425 return (1); 1426 } 1427 1428 mtx_lock(&softc->ctl_lock); 1429 1430 if (softc->wwpn_iid[targ_port][iid].in_use != 0) { 1431 /* 1432 * We don't treat this as an error. 1433 */ 1434 if (softc->wwpn_iid[targ_port][iid].wwpn == wwpn) { 1435 printf("%s: port %d iid %u WWPN %#jx arrived again?\n", 1436 __func__, targ_port, iid, (uintmax_t)wwpn); 1437 goto bailout; 1438 } 1439 1440 /* 1441 * This is an error, but what do we do about it? The 1442 * driver is telling us we have a new WWPN for this 1443 * initiator ID, so we pretty much need to use it. 1444 */ 1445 printf("%s: port %d iid %u WWPN %#jx arrived, WWPN %#jx is " 1446 "still at that address\n", __func__, targ_port, iid, 1447 (uintmax_t)wwpn, 1448 (uintmax_t)softc->wwpn_iid[targ_port][iid].wwpn); 1449 1450 /* 1451 * XXX KDM clear have_ca and ua_pending on each LUN for 1452 * this initiator. 1453 */ 1454 } 1455 softc->wwpn_iid[targ_port][iid].in_use = 1; 1456 softc->wwpn_iid[targ_port][iid].iid = iid; 1457 softc->wwpn_iid[targ_port][iid].wwpn = wwpn; 1458 softc->wwpn_iid[targ_port][iid].port = targ_port; 1459 1460bailout: 1461 1462 mtx_unlock(&softc->ctl_lock); 1463 1464 return (retval); 1465} 1466 1467static int 1468ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1469{ 1470 return (0); 1471} 1472 1473static int 1474ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1475{ 1476 return (0); 1477} 1478 1479/* 1480 * Data movement routine for the CTL ioctl frontend port. 1481 */ 1482static int 1483ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1484{ 1485 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1486 struct ctl_sg_entry ext_entry, kern_entry; 1487 int ext_sglen, ext_sg_entries, kern_sg_entries; 1488 int ext_sg_start, ext_offset; 1489 int len_to_copy, len_copied; 1490 int kern_watermark, ext_watermark; 1491 int ext_sglist_malloced; 1492 int i, j; 1493 1494 ext_sglist_malloced = 0; 1495 ext_sg_start = 0; 1496 ext_offset = 0; 1497 1498 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1499 1500 /* 1501 * If this flag is set, fake the data transfer. 1502 */ 1503 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1504 ctsio->ext_data_filled = ctsio->ext_data_len; 1505 goto bailout; 1506 } 1507 1508 /* 1509 * To simplify things here, if we have a single buffer, stick it in 1510 * a S/G entry and just make it a single entry S/G list. 1511 */ 1512 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1513 int len_seen; 1514 1515 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1516 1517 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1518 M_WAITOK); 1519 ext_sglist_malloced = 1; 1520 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1521 ext_sglen) != 0) { 1522 ctl_set_internal_failure(ctsio, 1523 /*sks_valid*/ 0, 1524 /*retry_count*/ 0); 1525 goto bailout; 1526 } 1527 ext_sg_entries = ctsio->ext_sg_entries; 1528 len_seen = 0; 1529 for (i = 0; i < ext_sg_entries; i++) { 1530 if ((len_seen + ext_sglist[i].len) >= 1531 ctsio->ext_data_filled) { 1532 ext_sg_start = i; 1533 ext_offset = ctsio->ext_data_filled - len_seen; 1534 break; 1535 } 1536 len_seen += ext_sglist[i].len; 1537 } 1538 } else { 1539 ext_sglist = &ext_entry; 1540 ext_sglist->addr = ctsio->ext_data_ptr; 1541 ext_sglist->len = ctsio->ext_data_len; 1542 ext_sg_entries = 1; 1543 ext_sg_start = 0; 1544 ext_offset = ctsio->ext_data_filled; 1545 } 1546 1547 if (ctsio->kern_sg_entries > 0) { 1548 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1549 kern_sg_entries = ctsio->kern_sg_entries; 1550 } else { 1551 kern_sglist = &kern_entry; 1552 kern_sglist->addr = ctsio->kern_data_ptr; 1553 kern_sglist->len = ctsio->kern_data_len; 1554 kern_sg_entries = 1; 1555 } 1556 1557 1558 kern_watermark = 0; 1559 ext_watermark = ext_offset; 1560 len_copied = 0; 1561 for (i = ext_sg_start, j = 0; 1562 i < ext_sg_entries && j < kern_sg_entries;) { 1563 uint8_t *ext_ptr, *kern_ptr; 1564 1565 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1566 kern_sglist[j].len - kern_watermark); 1567 1568 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1569 ext_ptr = ext_ptr + ext_watermark; 1570 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1571 /* 1572 * XXX KDM fix this! 1573 */ 1574 panic("need to implement bus address support"); 1575#if 0 1576 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1577#endif 1578 } else 1579 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1580 kern_ptr = kern_ptr + kern_watermark; 1581 1582 kern_watermark += len_to_copy; 1583 ext_watermark += len_to_copy; 1584 1585 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1586 CTL_FLAG_DATA_IN) { 1587 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1588 "bytes to user\n", len_to_copy)); 1589 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1590 "to %p\n", kern_ptr, ext_ptr)); 1591 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1592 ctl_set_internal_failure(ctsio, 1593 /*sks_valid*/ 0, 1594 /*retry_count*/ 0); 1595 goto bailout; 1596 } 1597 } else { 1598 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1599 "bytes from user\n", len_to_copy)); 1600 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1601 "to %p\n", ext_ptr, kern_ptr)); 1602 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1603 ctl_set_internal_failure(ctsio, 1604 /*sks_valid*/ 0, 1605 /*retry_count*/0); 1606 goto bailout; 1607 } 1608 } 1609 1610 len_copied += len_to_copy; 1611 1612 if (ext_sglist[i].len == ext_watermark) { 1613 i++; 1614 ext_watermark = 0; 1615 } 1616 1617 if (kern_sglist[j].len == kern_watermark) { 1618 j++; 1619 kern_watermark = 0; 1620 } 1621 } 1622 1623 ctsio->ext_data_filled += len_copied; 1624 1625 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1626 "kern_sg_entries: %d\n", ext_sg_entries, 1627 kern_sg_entries)); 1628 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1629 "kern_data_len = %d\n", ctsio->ext_data_len, 1630 ctsio->kern_data_len)); 1631 1632 1633 /* XXX KDM set residual?? */ 1634bailout: 1635 1636 if (ext_sglist_malloced != 0) 1637 free(ext_sglist, M_CTL); 1638 1639 return (CTL_RETVAL_COMPLETE); 1640} 1641 1642/* 1643 * Serialize a command that went down the "wrong" side, and so was sent to 1644 * this controller for execution. The logic is a little different than the 1645 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1646 * sent back to the other side, but in the success case, we execute the 1647 * command on this side (XFER mode) or tell the other side to execute it 1648 * (SER_ONLY mode). 1649 */ 1650static int 1651ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1652{ 1653 struct ctl_softc *ctl_softc; 1654 union ctl_ha_msg msg_info; 1655 struct ctl_lun *lun; 1656 int retval = 0; 1657 uint32_t targ_lun; 1658 1659 ctl_softc = control_softc; 1660 1661 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1662 lun = ctl_softc->ctl_luns[targ_lun]; 1663 if (lun==NULL) 1664 { 1665 /* 1666 * Why isn't LUN defined? The other side wouldn't 1667 * send a cmd if the LUN is undefined. 1668 */ 1669 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1670 1671 /* "Logical unit not supported" */ 1672 ctl_set_sense_data(&msg_info.scsi.sense_data, 1673 lun, 1674 /*sense_format*/SSD_TYPE_NONE, 1675 /*current_error*/ 1, 1676 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1677 /*asc*/ 0x25, 1678 /*ascq*/ 0x00, 1679 SSD_ELEM_NONE); 1680 1681 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1682 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1683 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1684 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1685 msg_info.hdr.serializing_sc = NULL; 1686 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1687 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1688 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1689 } 1690 return(1); 1691 1692 } 1693 1694 mtx_lock(&lun->lun_lock); 1695 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1696 1697 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1698 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1699 ooa_links))) { 1700 case CTL_ACTION_BLOCK: 1701 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1702 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1703 blocked_links); 1704 break; 1705 case CTL_ACTION_PASS: 1706 case CTL_ACTION_SKIP: 1707 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1708 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1709 ctl_enqueue_rtr((union ctl_io *)ctsio); 1710 } else { 1711 1712 /* send msg back to other side */ 1713 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1714 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1715 msg_info.hdr.msg_type = CTL_MSG_R2R; 1716#if 0 1717 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1718#endif 1719 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1720 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1721 } 1722 } 1723 break; 1724 case CTL_ACTION_OVERLAP: 1725 /* OVERLAPPED COMMANDS ATTEMPTED */ 1726 ctl_set_sense_data(&msg_info.scsi.sense_data, 1727 lun, 1728 /*sense_format*/SSD_TYPE_NONE, 1729 /*current_error*/ 1, 1730 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1731 /*asc*/ 0x4E, 1732 /*ascq*/ 0x00, 1733 SSD_ELEM_NONE); 1734 1735 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1736 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1737 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1738 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1739 msg_info.hdr.serializing_sc = NULL; 1740 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1741#if 0 1742 printf("BAD JUJU:Major Bummer Overlap\n"); 1743#endif 1744 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1745 retval = 1; 1746 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1747 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1748 } 1749 break; 1750 case CTL_ACTION_OVERLAP_TAG: 1751 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1752 ctl_set_sense_data(&msg_info.scsi.sense_data, 1753 lun, 1754 /*sense_format*/SSD_TYPE_NONE, 1755 /*current_error*/ 1, 1756 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1757 /*asc*/ 0x4D, 1758 /*ascq*/ ctsio->tag_num & 0xff, 1759 SSD_ELEM_NONE); 1760 1761 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1762 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1763 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1764 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1765 msg_info.hdr.serializing_sc = NULL; 1766 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1767#if 0 1768 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1769#endif 1770 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1771 retval = 1; 1772 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1773 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1774 } 1775 break; 1776 case CTL_ACTION_ERROR: 1777 default: 1778 /* "Internal target failure" */ 1779 ctl_set_sense_data(&msg_info.scsi.sense_data, 1780 lun, 1781 /*sense_format*/SSD_TYPE_NONE, 1782 /*current_error*/ 1, 1783 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1784 /*asc*/ 0x44, 1785 /*ascq*/ 0x00, 1786 SSD_ELEM_NONE); 1787 1788 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1789 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1790 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1791 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1792 msg_info.hdr.serializing_sc = NULL; 1793 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1794#if 0 1795 printf("BAD JUJU:Major Bummer HW Error\n"); 1796#endif 1797 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1798 retval = 1; 1799 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1800 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1801 } 1802 break; 1803 } 1804 mtx_unlock(&lun->lun_lock); 1805 return (retval); 1806} 1807 1808static int 1809ctl_ioctl_submit_wait(union ctl_io *io) 1810{ 1811 struct ctl_fe_ioctl_params params; 1812 ctl_fe_ioctl_state last_state; 1813 int done, retval; 1814 1815 retval = 0; 1816 1817 bzero(¶ms, sizeof(params)); 1818 1819 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1820 cv_init(¶ms.sem, "ctlioccv"); 1821 params.state = CTL_IOCTL_INPROG; 1822 last_state = params.state; 1823 1824 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1825 1826 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1827 1828 /* This shouldn't happen */ 1829 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1830 return (retval); 1831 1832 done = 0; 1833 1834 do { 1835 mtx_lock(¶ms.ioctl_mtx); 1836 /* 1837 * Check the state here, and don't sleep if the state has 1838 * already changed (i.e. wakeup has already occured, but we 1839 * weren't waiting yet). 1840 */ 1841 if (params.state == last_state) { 1842 /* XXX KDM cv_wait_sig instead? */ 1843 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1844 } 1845 last_state = params.state; 1846 1847 switch (params.state) { 1848 case CTL_IOCTL_INPROG: 1849 /* Why did we wake up? */ 1850 /* XXX KDM error here? */ 1851 mtx_unlock(¶ms.ioctl_mtx); 1852 break; 1853 case CTL_IOCTL_DATAMOVE: 1854 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1855 1856 /* 1857 * change last_state back to INPROG to avoid 1858 * deadlock on subsequent data moves. 1859 */ 1860 params.state = last_state = CTL_IOCTL_INPROG; 1861 1862 mtx_unlock(¶ms.ioctl_mtx); 1863 ctl_ioctl_do_datamove(&io->scsiio); 1864 /* 1865 * Note that in some cases, most notably writes, 1866 * this will queue the I/O and call us back later. 1867 * In other cases, generally reads, this routine 1868 * will immediately call back and wake us up, 1869 * probably using our own context. 1870 */ 1871 io->scsiio.be_move_done(io); 1872 break; 1873 case CTL_IOCTL_DONE: 1874 mtx_unlock(¶ms.ioctl_mtx); 1875 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1876 done = 1; 1877 break; 1878 default: 1879 mtx_unlock(¶ms.ioctl_mtx); 1880 /* XXX KDM error here? */ 1881 break; 1882 } 1883 } while (done == 0); 1884 1885 mtx_destroy(¶ms.ioctl_mtx); 1886 cv_destroy(¶ms.sem); 1887 1888 return (CTL_RETVAL_COMPLETE); 1889} 1890 1891static void 1892ctl_ioctl_datamove(union ctl_io *io) 1893{ 1894 struct ctl_fe_ioctl_params *params; 1895 1896 params = (struct ctl_fe_ioctl_params *) 1897 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1898 1899 mtx_lock(¶ms->ioctl_mtx); 1900 params->state = CTL_IOCTL_DATAMOVE; 1901 cv_broadcast(¶ms->sem); 1902 mtx_unlock(¶ms->ioctl_mtx); 1903} 1904 1905static void 1906ctl_ioctl_done(union ctl_io *io) 1907{ 1908 struct ctl_fe_ioctl_params *params; 1909 1910 params = (struct ctl_fe_ioctl_params *) 1911 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1912 1913 mtx_lock(¶ms->ioctl_mtx); 1914 params->state = CTL_IOCTL_DONE; 1915 cv_broadcast(¶ms->sem); 1916 mtx_unlock(¶ms->ioctl_mtx); 1917} 1918 1919static void 1920ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 1921{ 1922 struct ctl_fe_ioctl_startstop_info *sd_info; 1923 1924 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 1925 1926 sd_info->hs_info.status = metatask->status; 1927 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 1928 sd_info->hs_info.luns_complete = 1929 metatask->taskinfo.startstop.luns_complete; 1930 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 1931 1932 cv_broadcast(&sd_info->sem); 1933} 1934 1935static void 1936ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 1937{ 1938 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 1939 1940 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 1941 1942 mtx_lock(fe_bbr_info->lock); 1943 fe_bbr_info->bbr_info->status = metatask->status; 1944 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 1945 fe_bbr_info->wakeup_done = 1; 1946 mtx_unlock(fe_bbr_info->lock); 1947 1948 cv_broadcast(&fe_bbr_info->sem); 1949} 1950 1951/* 1952 * Returns 0 for success, errno for failure. 1953 */ 1954static int 1955ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1956 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1957{ 1958 union ctl_io *io; 1959 int retval; 1960 1961 retval = 0; 1962 1963 mtx_lock(&lun->lun_lock); 1964 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1965 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1966 ooa_links)) { 1967 struct ctl_ooa_entry *entry; 1968 1969 /* 1970 * If we've got more than we can fit, just count the 1971 * remaining entries. 1972 */ 1973 if (*cur_fill_num >= ooa_hdr->alloc_num) 1974 continue; 1975 1976 entry = &kern_entries[*cur_fill_num]; 1977 1978 entry->tag_num = io->scsiio.tag_num; 1979 entry->lun_num = lun->lun; 1980#ifdef CTL_TIME_IO 1981 entry->start_bt = io->io_hdr.start_bt; 1982#endif 1983 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1984 entry->cdb_len = io->scsiio.cdb_len; 1985 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1986 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1987 1988 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1989 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1990 1991 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1992 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1993 1994 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1995 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1996 1997 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1998 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 1999 } 2000 mtx_unlock(&lun->lun_lock); 2001 2002 return (retval); 2003} 2004 2005static void * 2006ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2007 size_t error_str_len) 2008{ 2009 void *kptr; 2010 2011 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2012 2013 if (copyin(user_addr, kptr, len) != 0) { 2014 snprintf(error_str, error_str_len, "Error copying %d bytes " 2015 "from user address %p to kernel address %p", len, 2016 user_addr, kptr); 2017 free(kptr, M_CTL); 2018 return (NULL); 2019 } 2020 2021 return (kptr); 2022} 2023 2024static void 2025ctl_free_args(int num_args, struct ctl_be_arg *args) 2026{ 2027 int i; 2028 2029 if (args == NULL) 2030 return; 2031 2032 for (i = 0; i < num_args; i++) { 2033 free(args[i].kname, M_CTL); 2034 free(args[i].kvalue, M_CTL); 2035 } 2036 2037 free(args, M_CTL); 2038} 2039 2040static struct ctl_be_arg * 2041ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2042 char *error_str, size_t error_str_len) 2043{ 2044 struct ctl_be_arg *args; 2045 int i; 2046 2047 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2048 error_str, error_str_len); 2049 2050 if (args == NULL) 2051 goto bailout; 2052 2053 for (i = 0; i < num_args; i++) { 2054 args[i].kname = NULL; 2055 args[i].kvalue = NULL; 2056 } 2057 2058 for (i = 0; i < num_args; i++) { 2059 uint8_t *tmpptr; 2060 2061 args[i].kname = ctl_copyin_alloc(args[i].name, 2062 args[i].namelen, error_str, error_str_len); 2063 if (args[i].kname == NULL) 2064 goto bailout; 2065 2066 if (args[i].kname[args[i].namelen - 1] != '\0') { 2067 snprintf(error_str, error_str_len, "Argument %d " 2068 "name is not NUL-terminated", i); 2069 goto bailout; 2070 } 2071 2072 if (args[i].flags & CTL_BEARG_RD) { 2073 tmpptr = ctl_copyin_alloc(args[i].value, 2074 args[i].vallen, error_str, error_str_len); 2075 if (tmpptr == NULL) 2076 goto bailout; 2077 if ((args[i].flags & CTL_BEARG_ASCII) 2078 && (tmpptr[args[i].vallen - 1] != '\0')) { 2079 snprintf(error_str, error_str_len, "Argument " 2080 "%d value is not NUL-terminated", i); 2081 goto bailout; 2082 } 2083 args[i].kvalue = tmpptr; 2084 } else { 2085 args[i].kvalue = malloc(args[i].vallen, 2086 M_CTL, M_WAITOK | M_ZERO); 2087 } 2088 } 2089 2090 return (args); 2091bailout: 2092 2093 ctl_free_args(num_args, args); 2094 2095 return (NULL); 2096} 2097 2098static void 2099ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2100{ 2101 int i; 2102 2103 for (i = 0; i < num_args; i++) { 2104 if (args[i].flags & CTL_BEARG_WR) 2105 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2106 } 2107} 2108 2109/* 2110 * Escape characters that are illegal or not recommended in XML. 2111 */ 2112int 2113ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2114{ 2115 int retval; 2116 2117 retval = 0; 2118 2119 for (; *str; str++) { 2120 switch (*str) { 2121 case '&': 2122 retval = sbuf_printf(sb, "&"); 2123 break; 2124 case '>': 2125 retval = sbuf_printf(sb, ">"); 2126 break; 2127 case '<': 2128 retval = sbuf_printf(sb, "<"); 2129 break; 2130 default: 2131 retval = sbuf_putc(sb, *str); 2132 break; 2133 } 2134 2135 if (retval != 0) 2136 break; 2137 2138 } 2139 2140 return (retval); 2141} 2142 2143static int 2144ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2145 struct thread *td) 2146{ 2147 struct ctl_softc *softc; 2148 int retval; 2149 2150 softc = control_softc; 2151 2152 retval = 0; 2153 2154 switch (cmd) { 2155 case CTL_IO: { 2156 union ctl_io *io; 2157 void *pool_tmp; 2158 2159 /* 2160 * If we haven't been "enabled", don't allow any SCSI I/O 2161 * to this FETD. 2162 */ 2163 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2164 retval = EPERM; 2165 break; 2166 } 2167 2168 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2169 if (io == NULL) { 2170 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2171 retval = ENOSPC; 2172 break; 2173 } 2174 2175 /* 2176 * Need to save the pool reference so it doesn't get 2177 * spammed by the user's ctl_io. 2178 */ 2179 pool_tmp = io->io_hdr.pool; 2180 2181 memcpy(io, (void *)addr, sizeof(*io)); 2182 2183 io->io_hdr.pool = pool_tmp; 2184 /* 2185 * No status yet, so make sure the status is set properly. 2186 */ 2187 io->io_hdr.status = CTL_STATUS_NONE; 2188 2189 /* 2190 * The user sets the initiator ID, target and LUN IDs. 2191 */ 2192 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2193 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2194 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2195 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2196 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2197 2198 retval = ctl_ioctl_submit_wait(io); 2199 2200 if (retval != 0) { 2201 ctl_free_io(io); 2202 break; 2203 } 2204 2205 memcpy((void *)addr, io, sizeof(*io)); 2206 2207 /* return this to our pool */ 2208 ctl_free_io(io); 2209 2210 break; 2211 } 2212 case CTL_ENABLE_PORT: 2213 case CTL_DISABLE_PORT: 2214 case CTL_SET_PORT_WWNS: { 2215 struct ctl_port *port; 2216 struct ctl_port_entry *entry; 2217 2218 entry = (struct ctl_port_entry *)addr; 2219 2220 mtx_lock(&softc->ctl_lock); 2221 STAILQ_FOREACH(port, &softc->port_list, links) { 2222 int action, done; 2223 2224 action = 0; 2225 done = 0; 2226 2227 if ((entry->port_type == CTL_PORT_NONE) 2228 && (entry->targ_port == port->targ_port)) { 2229 /* 2230 * If the user only wants to enable or 2231 * disable or set WWNs on a specific port, 2232 * do the operation and we're done. 2233 */ 2234 action = 1; 2235 done = 1; 2236 } else if (entry->port_type & port->port_type) { 2237 /* 2238 * Compare the user's type mask with the 2239 * particular frontend type to see if we 2240 * have a match. 2241 */ 2242 action = 1; 2243 done = 0; 2244 2245 /* 2246 * Make sure the user isn't trying to set 2247 * WWNs on multiple ports at the same time. 2248 */ 2249 if (cmd == CTL_SET_PORT_WWNS) { 2250 printf("%s: Can't set WWNs on " 2251 "multiple ports\n", __func__); 2252 retval = EINVAL; 2253 break; 2254 } 2255 } 2256 if (action != 0) { 2257 /* 2258 * XXX KDM we have to drop the lock here, 2259 * because the online/offline operations 2260 * can potentially block. We need to 2261 * reference count the frontends so they 2262 * can't go away, 2263 */ 2264 mtx_unlock(&softc->ctl_lock); 2265 2266 if (cmd == CTL_ENABLE_PORT) { 2267 struct ctl_lun *lun; 2268 2269 STAILQ_FOREACH(lun, &softc->lun_list, 2270 links) { 2271 port->lun_enable(port->targ_lun_arg, 2272 lun->target, 2273 lun->lun); 2274 } 2275 2276 ctl_port_online(port); 2277 } else if (cmd == CTL_DISABLE_PORT) { 2278 struct ctl_lun *lun; 2279 2280 ctl_port_offline(port); 2281 2282 STAILQ_FOREACH(lun, &softc->lun_list, 2283 links) { 2284 port->lun_disable( 2285 port->targ_lun_arg, 2286 lun->target, 2287 lun->lun); 2288 } 2289 } 2290 2291 mtx_lock(&softc->ctl_lock); 2292 2293 if (cmd == CTL_SET_PORT_WWNS) 2294 ctl_port_set_wwns(port, 2295 (entry->flags & CTL_PORT_WWNN_VALID) ? 2296 1 : 0, entry->wwnn, 2297 (entry->flags & CTL_PORT_WWPN_VALID) ? 2298 1 : 0, entry->wwpn); 2299 } 2300 if (done != 0) 2301 break; 2302 } 2303 mtx_unlock(&softc->ctl_lock); 2304 break; 2305 } 2306 case CTL_GET_PORT_LIST: { 2307 struct ctl_port *port; 2308 struct ctl_port_list *list; 2309 int i; 2310 2311 list = (struct ctl_port_list *)addr; 2312 2313 if (list->alloc_len != (list->alloc_num * 2314 sizeof(struct ctl_port_entry))) { 2315 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2316 "alloc_num %u * sizeof(struct ctl_port_entry) " 2317 "%zu\n", __func__, list->alloc_len, 2318 list->alloc_num, sizeof(struct ctl_port_entry)); 2319 retval = EINVAL; 2320 break; 2321 } 2322 list->fill_len = 0; 2323 list->fill_num = 0; 2324 list->dropped_num = 0; 2325 i = 0; 2326 mtx_lock(&softc->ctl_lock); 2327 STAILQ_FOREACH(port, &softc->port_list, links) { 2328 struct ctl_port_entry entry, *list_entry; 2329 2330 if (list->fill_num >= list->alloc_num) { 2331 list->dropped_num++; 2332 continue; 2333 } 2334 2335 entry.port_type = port->port_type; 2336 strlcpy(entry.port_name, port->port_name, 2337 sizeof(entry.port_name)); 2338 entry.targ_port = port->targ_port; 2339 entry.physical_port = port->physical_port; 2340 entry.virtual_port = port->virtual_port; 2341 entry.wwnn = port->wwnn; 2342 entry.wwpn = port->wwpn; 2343 if (port->status & CTL_PORT_STATUS_ONLINE) 2344 entry.online = 1; 2345 else 2346 entry.online = 0; 2347 2348 list_entry = &list->entries[i]; 2349 2350 retval = copyout(&entry, list_entry, sizeof(entry)); 2351 if (retval != 0) { 2352 printf("%s: CTL_GET_PORT_LIST: copyout " 2353 "returned %d\n", __func__, retval); 2354 break; 2355 } 2356 i++; 2357 list->fill_num++; 2358 list->fill_len += sizeof(entry); 2359 } 2360 mtx_unlock(&softc->ctl_lock); 2361 2362 /* 2363 * If this is non-zero, we had a copyout fault, so there's 2364 * probably no point in attempting to set the status inside 2365 * the structure. 2366 */ 2367 if (retval != 0) 2368 break; 2369 2370 if (list->dropped_num > 0) 2371 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2372 else 2373 list->status = CTL_PORT_LIST_OK; 2374 break; 2375 } 2376 case CTL_DUMP_OOA: { 2377 struct ctl_lun *lun; 2378 union ctl_io *io; 2379 char printbuf[128]; 2380 struct sbuf sb; 2381 2382 mtx_lock(&softc->ctl_lock); 2383 printf("Dumping OOA queues:\n"); 2384 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2385 mtx_lock(&lun->lun_lock); 2386 for (io = (union ctl_io *)TAILQ_FIRST( 2387 &lun->ooa_queue); io != NULL; 2388 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2389 ooa_links)) { 2390 sbuf_new(&sb, printbuf, sizeof(printbuf), 2391 SBUF_FIXEDLEN); 2392 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2393 (intmax_t)lun->lun, 2394 io->scsiio.tag_num, 2395 (io->io_hdr.flags & 2396 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2397 (io->io_hdr.flags & 2398 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2399 (io->io_hdr.flags & 2400 CTL_FLAG_ABORT) ? " ABORT" : "", 2401 (io->io_hdr.flags & 2402 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2403 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2404 sbuf_finish(&sb); 2405 printf("%s\n", sbuf_data(&sb)); 2406 } 2407 mtx_unlock(&lun->lun_lock); 2408 } 2409 printf("OOA queues dump done\n"); 2410 mtx_unlock(&softc->ctl_lock); 2411 break; 2412 } 2413 case CTL_GET_OOA: { 2414 struct ctl_lun *lun; 2415 struct ctl_ooa *ooa_hdr; 2416 struct ctl_ooa_entry *entries; 2417 uint32_t cur_fill_num; 2418 2419 ooa_hdr = (struct ctl_ooa *)addr; 2420 2421 if ((ooa_hdr->alloc_len == 0) 2422 || (ooa_hdr->alloc_num == 0)) { 2423 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2424 "must be non-zero\n", __func__, 2425 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2426 retval = EINVAL; 2427 break; 2428 } 2429 2430 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2431 sizeof(struct ctl_ooa_entry))) { 2432 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2433 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2434 __func__, ooa_hdr->alloc_len, 2435 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2436 retval = EINVAL; 2437 break; 2438 } 2439 2440 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2441 if (entries == NULL) { 2442 printf("%s: could not allocate %d bytes for OOA " 2443 "dump\n", __func__, ooa_hdr->alloc_len); 2444 retval = ENOMEM; 2445 break; 2446 } 2447 2448 mtx_lock(&softc->ctl_lock); 2449 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2450 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2451 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2452 mtx_unlock(&softc->ctl_lock); 2453 free(entries, M_CTL); 2454 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2455 __func__, (uintmax_t)ooa_hdr->lun_num); 2456 retval = EINVAL; 2457 break; 2458 } 2459 2460 cur_fill_num = 0; 2461 2462 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2463 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2464 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2465 ooa_hdr, entries); 2466 if (retval != 0) 2467 break; 2468 } 2469 if (retval != 0) { 2470 mtx_unlock(&softc->ctl_lock); 2471 free(entries, M_CTL); 2472 break; 2473 } 2474 } else { 2475 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2476 2477 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2478 entries); 2479 } 2480 mtx_unlock(&softc->ctl_lock); 2481 2482 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2483 ooa_hdr->fill_len = ooa_hdr->fill_num * 2484 sizeof(struct ctl_ooa_entry); 2485 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2486 if (retval != 0) { 2487 printf("%s: error copying out %d bytes for OOA dump\n", 2488 __func__, ooa_hdr->fill_len); 2489 } 2490 2491 getbintime(&ooa_hdr->cur_bt); 2492 2493 if (cur_fill_num > ooa_hdr->alloc_num) { 2494 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2495 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2496 } else { 2497 ooa_hdr->dropped_num = 0; 2498 ooa_hdr->status = CTL_OOA_OK; 2499 } 2500 2501 free(entries, M_CTL); 2502 break; 2503 } 2504 case CTL_CHECK_OOA: { 2505 union ctl_io *io; 2506 struct ctl_lun *lun; 2507 struct ctl_ooa_info *ooa_info; 2508 2509 2510 ooa_info = (struct ctl_ooa_info *)addr; 2511 2512 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2513 ooa_info->status = CTL_OOA_INVALID_LUN; 2514 break; 2515 } 2516 mtx_lock(&softc->ctl_lock); 2517 lun = softc->ctl_luns[ooa_info->lun_id]; 2518 if (lun == NULL) { 2519 mtx_unlock(&softc->ctl_lock); 2520 ooa_info->status = CTL_OOA_INVALID_LUN; 2521 break; 2522 } 2523 mtx_lock(&lun->lun_lock); 2524 mtx_unlock(&softc->ctl_lock); 2525 ooa_info->num_entries = 0; 2526 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2527 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2528 &io->io_hdr, ooa_links)) { 2529 ooa_info->num_entries++; 2530 } 2531 mtx_unlock(&lun->lun_lock); 2532 2533 ooa_info->status = CTL_OOA_SUCCESS; 2534 2535 break; 2536 } 2537 case CTL_HARD_START: 2538 case CTL_HARD_STOP: { 2539 struct ctl_fe_ioctl_startstop_info ss_info; 2540 struct cfi_metatask *metatask; 2541 struct mtx hs_mtx; 2542 2543 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2544 2545 cv_init(&ss_info.sem, "hard start/stop cv" ); 2546 2547 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2548 if (metatask == NULL) { 2549 retval = ENOMEM; 2550 mtx_destroy(&hs_mtx); 2551 break; 2552 } 2553 2554 if (cmd == CTL_HARD_START) 2555 metatask->tasktype = CFI_TASK_STARTUP; 2556 else 2557 metatask->tasktype = CFI_TASK_SHUTDOWN; 2558 2559 metatask->callback = ctl_ioctl_hard_startstop_callback; 2560 metatask->callback_arg = &ss_info; 2561 2562 cfi_action(metatask); 2563 2564 /* Wait for the callback */ 2565 mtx_lock(&hs_mtx); 2566 cv_wait_sig(&ss_info.sem, &hs_mtx); 2567 mtx_unlock(&hs_mtx); 2568 2569 /* 2570 * All information has been copied from the metatask by the 2571 * time cv_broadcast() is called, so we free the metatask here. 2572 */ 2573 cfi_free_metatask(metatask); 2574 2575 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2576 2577 mtx_destroy(&hs_mtx); 2578 break; 2579 } 2580 case CTL_BBRREAD: { 2581 struct ctl_bbrread_info *bbr_info; 2582 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2583 struct mtx bbr_mtx; 2584 struct cfi_metatask *metatask; 2585 2586 bbr_info = (struct ctl_bbrread_info *)addr; 2587 2588 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2589 2590 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2591 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2592 2593 fe_bbr_info.bbr_info = bbr_info; 2594 fe_bbr_info.lock = &bbr_mtx; 2595 2596 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2597 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2598 2599 if (metatask == NULL) { 2600 mtx_destroy(&bbr_mtx); 2601 cv_destroy(&fe_bbr_info.sem); 2602 retval = ENOMEM; 2603 break; 2604 } 2605 metatask->tasktype = CFI_TASK_BBRREAD; 2606 metatask->callback = ctl_ioctl_bbrread_callback; 2607 metatask->callback_arg = &fe_bbr_info; 2608 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2609 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2610 metatask->taskinfo.bbrread.len = bbr_info->len; 2611 2612 cfi_action(metatask); 2613 2614 mtx_lock(&bbr_mtx); 2615 while (fe_bbr_info.wakeup_done == 0) 2616 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2617 mtx_unlock(&bbr_mtx); 2618 2619 bbr_info->status = metatask->status; 2620 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2621 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2622 memcpy(&bbr_info->sense_data, 2623 &metatask->taskinfo.bbrread.sense_data, 2624 ctl_min(sizeof(bbr_info->sense_data), 2625 sizeof(metatask->taskinfo.bbrread.sense_data))); 2626 2627 cfi_free_metatask(metatask); 2628 2629 mtx_destroy(&bbr_mtx); 2630 cv_destroy(&fe_bbr_info.sem); 2631 2632 break; 2633 } 2634 case CTL_DELAY_IO: { 2635 struct ctl_io_delay_info *delay_info; 2636#ifdef CTL_IO_DELAY 2637 struct ctl_lun *lun; 2638#endif /* CTL_IO_DELAY */ 2639 2640 delay_info = (struct ctl_io_delay_info *)addr; 2641 2642#ifdef CTL_IO_DELAY 2643 mtx_lock(&softc->ctl_lock); 2644 2645 if ((delay_info->lun_id > CTL_MAX_LUNS) 2646 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2647 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2648 } else { 2649 lun = softc->ctl_luns[delay_info->lun_id]; 2650 mtx_lock(&lun->lun_lock); 2651 2652 delay_info->status = CTL_DELAY_STATUS_OK; 2653 2654 switch (delay_info->delay_type) { 2655 case CTL_DELAY_TYPE_CONT: 2656 break; 2657 case CTL_DELAY_TYPE_ONESHOT: 2658 break; 2659 default: 2660 delay_info->status = 2661 CTL_DELAY_STATUS_INVALID_TYPE; 2662 break; 2663 } 2664 2665 switch (delay_info->delay_loc) { 2666 case CTL_DELAY_LOC_DATAMOVE: 2667 lun->delay_info.datamove_type = 2668 delay_info->delay_type; 2669 lun->delay_info.datamove_delay = 2670 delay_info->delay_secs; 2671 break; 2672 case CTL_DELAY_LOC_DONE: 2673 lun->delay_info.done_type = 2674 delay_info->delay_type; 2675 lun->delay_info.done_delay = 2676 delay_info->delay_secs; 2677 break; 2678 default: 2679 delay_info->status = 2680 CTL_DELAY_STATUS_INVALID_LOC; 2681 break; 2682 } 2683 mtx_unlock(&lun->lun_lock); 2684 } 2685 2686 mtx_unlock(&softc->ctl_lock); 2687#else 2688 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2689#endif /* CTL_IO_DELAY */ 2690 break; 2691 } 2692 case CTL_REALSYNC_SET: { 2693 int *syncstate; 2694 2695 syncstate = (int *)addr; 2696 2697 mtx_lock(&softc->ctl_lock); 2698 switch (*syncstate) { 2699 case 0: 2700 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2701 break; 2702 case 1: 2703 softc->flags |= CTL_FLAG_REAL_SYNC; 2704 break; 2705 default: 2706 retval = EINVAL; 2707 break; 2708 } 2709 mtx_unlock(&softc->ctl_lock); 2710 break; 2711 } 2712 case CTL_REALSYNC_GET: { 2713 int *syncstate; 2714 2715 syncstate = (int*)addr; 2716 2717 mtx_lock(&softc->ctl_lock); 2718 if (softc->flags & CTL_FLAG_REAL_SYNC) 2719 *syncstate = 1; 2720 else 2721 *syncstate = 0; 2722 mtx_unlock(&softc->ctl_lock); 2723 2724 break; 2725 } 2726 case CTL_SETSYNC: 2727 case CTL_GETSYNC: { 2728 struct ctl_sync_info *sync_info; 2729 struct ctl_lun *lun; 2730 2731 sync_info = (struct ctl_sync_info *)addr; 2732 2733 mtx_lock(&softc->ctl_lock); 2734 lun = softc->ctl_luns[sync_info->lun_id]; 2735 if (lun == NULL) { 2736 mtx_unlock(&softc->ctl_lock); 2737 sync_info->status = CTL_GS_SYNC_NO_LUN; 2738 } 2739 /* 2740 * Get or set the sync interval. We're not bounds checking 2741 * in the set case, hopefully the user won't do something 2742 * silly. 2743 */ 2744 mtx_lock(&lun->lun_lock); 2745 mtx_unlock(&softc->ctl_lock); 2746 if (cmd == CTL_GETSYNC) 2747 sync_info->sync_interval = lun->sync_interval; 2748 else 2749 lun->sync_interval = sync_info->sync_interval; 2750 mtx_unlock(&lun->lun_lock); 2751 2752 sync_info->status = CTL_GS_SYNC_OK; 2753 2754 break; 2755 } 2756 case CTL_GETSTATS: { 2757 struct ctl_stats *stats; 2758 struct ctl_lun *lun; 2759 int i; 2760 2761 stats = (struct ctl_stats *)addr; 2762 2763 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2764 stats->alloc_len) { 2765 stats->status = CTL_SS_NEED_MORE_SPACE; 2766 stats->num_luns = softc->num_luns; 2767 break; 2768 } 2769 /* 2770 * XXX KDM no locking here. If the LUN list changes, 2771 * things can blow up. 2772 */ 2773 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2774 i++, lun = STAILQ_NEXT(lun, links)) { 2775 retval = copyout(&lun->stats, &stats->lun_stats[i], 2776 sizeof(lun->stats)); 2777 if (retval != 0) 2778 break; 2779 } 2780 stats->num_luns = softc->num_luns; 2781 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2782 softc->num_luns; 2783 stats->status = CTL_SS_OK; 2784#ifdef CTL_TIME_IO 2785 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2786#else 2787 stats->flags = CTL_STATS_FLAG_NONE; 2788#endif 2789 getnanouptime(&stats->timestamp); 2790 break; 2791 } 2792 case CTL_ERROR_INJECT: { 2793 struct ctl_error_desc *err_desc, *new_err_desc; 2794 struct ctl_lun *lun; 2795 2796 err_desc = (struct ctl_error_desc *)addr; 2797 2798 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2799 M_WAITOK | M_ZERO); 2800 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2801 2802 mtx_lock(&softc->ctl_lock); 2803 lun = softc->ctl_luns[err_desc->lun_id]; 2804 if (lun == NULL) { 2805 mtx_unlock(&softc->ctl_lock); 2806 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2807 __func__, (uintmax_t)err_desc->lun_id); 2808 retval = EINVAL; 2809 break; 2810 } 2811 mtx_lock(&lun->lun_lock); 2812 mtx_unlock(&softc->ctl_lock); 2813 2814 /* 2815 * We could do some checking here to verify the validity 2816 * of the request, but given the complexity of error 2817 * injection requests, the checking logic would be fairly 2818 * complex. 2819 * 2820 * For now, if the request is invalid, it just won't get 2821 * executed and might get deleted. 2822 */ 2823 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2824 2825 /* 2826 * XXX KDM check to make sure the serial number is unique, 2827 * in case we somehow manage to wrap. That shouldn't 2828 * happen for a very long time, but it's the right thing to 2829 * do. 2830 */ 2831 new_err_desc->serial = lun->error_serial; 2832 err_desc->serial = lun->error_serial; 2833 lun->error_serial++; 2834 2835 mtx_unlock(&lun->lun_lock); 2836 break; 2837 } 2838 case CTL_ERROR_INJECT_DELETE: { 2839 struct ctl_error_desc *delete_desc, *desc, *desc2; 2840 struct ctl_lun *lun; 2841 int delete_done; 2842 2843 delete_desc = (struct ctl_error_desc *)addr; 2844 delete_done = 0; 2845 2846 mtx_lock(&softc->ctl_lock); 2847 lun = softc->ctl_luns[delete_desc->lun_id]; 2848 if (lun == NULL) { 2849 mtx_unlock(&softc->ctl_lock); 2850 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2851 __func__, (uintmax_t)delete_desc->lun_id); 2852 retval = EINVAL; 2853 break; 2854 } 2855 mtx_lock(&lun->lun_lock); 2856 mtx_unlock(&softc->ctl_lock); 2857 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2858 if (desc->serial != delete_desc->serial) 2859 continue; 2860 2861 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2862 links); 2863 free(desc, M_CTL); 2864 delete_done = 1; 2865 } 2866 mtx_unlock(&lun->lun_lock); 2867 if (delete_done == 0) { 2868 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2869 "error serial %ju on LUN %u\n", __func__, 2870 delete_desc->serial, delete_desc->lun_id); 2871 retval = EINVAL; 2872 break; 2873 } 2874 break; 2875 } 2876 case CTL_DUMP_STRUCTS: { 2877 int i, j, k; 2878 struct ctl_port *port; 2879 struct ctl_frontend *fe; 2880 2881 printf("CTL IID to WWPN map start:\n"); 2882 for (i = 0; i < CTL_MAX_PORTS; i++) { 2883 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2884 if (softc->wwpn_iid[i][j].in_use == 0) 2885 continue; 2886 2887 printf("port %d iid %u WWPN %#jx\n", 2888 softc->wwpn_iid[i][j].port, 2889 softc->wwpn_iid[i][j].iid, 2890 (uintmax_t)softc->wwpn_iid[i][j].wwpn); 2891 } 2892 } 2893 printf("CTL IID to WWPN map end\n"); 2894 printf("CTL Persistent Reservation information start:\n"); 2895 for (i = 0; i < CTL_MAX_LUNS; i++) { 2896 struct ctl_lun *lun; 2897 2898 lun = softc->ctl_luns[i]; 2899 2900 if ((lun == NULL) 2901 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2902 continue; 2903 2904 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2905 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2906 if (lun->per_res[j+k].registered == 0) 2907 continue; 2908 printf("LUN %d port %d iid %d key " 2909 "%#jx\n", i, j, k, 2910 (uintmax_t)scsi_8btou64( 2911 lun->per_res[j+k].res_key.key)); 2912 } 2913 } 2914 } 2915 printf("CTL Persistent Reservation information end\n"); 2916 printf("CTL Ports:\n"); 2917 /* 2918 * XXX KDM calling this without a lock. We'd likely want 2919 * to drop the lock before calling the frontend's dump 2920 * routine anyway. 2921 */ 2922 STAILQ_FOREACH(port, &softc->port_list, links) { 2923 printf("Port %s Frontend %s Type %u pport %d vport %d WWNN " 2924 "%#jx WWPN %#jx\n", port->port_name, 2925 port->frontend->name, port->port_type, 2926 port->physical_port, port->virtual_port, 2927 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2928 } 2929 printf("CTL Port information end\n"); 2930 printf("CTL Frontends:\n"); 2931 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2932 printf("Frontend %s\n", fe->name); 2933 if (fe->fe_dump != NULL) 2934 fe->fe_dump(); 2935 } 2936 printf("CTL Frontend information end\n"); 2937 break; 2938 } 2939 case CTL_LUN_REQ: { 2940 struct ctl_lun_req *lun_req; 2941 struct ctl_backend_driver *backend; 2942 2943 lun_req = (struct ctl_lun_req *)addr; 2944 2945 backend = ctl_backend_find(lun_req->backend); 2946 if (backend == NULL) { 2947 lun_req->status = CTL_LUN_ERROR; 2948 snprintf(lun_req->error_str, 2949 sizeof(lun_req->error_str), 2950 "Backend \"%s\" not found.", 2951 lun_req->backend); 2952 break; 2953 } 2954 if (lun_req->num_be_args > 0) { 2955 lun_req->kern_be_args = ctl_copyin_args( 2956 lun_req->num_be_args, 2957 lun_req->be_args, 2958 lun_req->error_str, 2959 sizeof(lun_req->error_str)); 2960 if (lun_req->kern_be_args == NULL) { 2961 lun_req->status = CTL_LUN_ERROR; 2962 break; 2963 } 2964 } 2965 2966 retval = backend->ioctl(dev, cmd, addr, flag, td); 2967 2968 if (lun_req->num_be_args > 0) { 2969 ctl_copyout_args(lun_req->num_be_args, 2970 lun_req->kern_be_args); 2971 ctl_free_args(lun_req->num_be_args, 2972 lun_req->kern_be_args); 2973 } 2974 break; 2975 } 2976 case CTL_LUN_LIST: { 2977 struct sbuf *sb; 2978 struct ctl_lun *lun; 2979 struct ctl_lun_list *list; 2980 struct ctl_option *opt; 2981 2982 list = (struct ctl_lun_list *)addr; 2983 2984 /* 2985 * Allocate a fixed length sbuf here, based on the length 2986 * of the user's buffer. We could allocate an auto-extending 2987 * buffer, and then tell the user how much larger our 2988 * amount of data is than his buffer, but that presents 2989 * some problems: 2990 * 2991 * 1. The sbuf(9) routines use a blocking malloc, and so 2992 * we can't hold a lock while calling them with an 2993 * auto-extending buffer. 2994 * 2995 * 2. There is not currently a LUN reference counting 2996 * mechanism, outside of outstanding transactions on 2997 * the LUN's OOA queue. So a LUN could go away on us 2998 * while we're getting the LUN number, backend-specific 2999 * information, etc. Thus, given the way things 3000 * currently work, we need to hold the CTL lock while 3001 * grabbing LUN information. 3002 * 3003 * So, from the user's standpoint, the best thing to do is 3004 * allocate what he thinks is a reasonable buffer length, 3005 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3006 * double the buffer length and try again. (And repeat 3007 * that until he succeeds.) 3008 */ 3009 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3010 if (sb == NULL) { 3011 list->status = CTL_LUN_LIST_ERROR; 3012 snprintf(list->error_str, sizeof(list->error_str), 3013 "Unable to allocate %d bytes for LUN list", 3014 list->alloc_len); 3015 break; 3016 } 3017 3018 sbuf_printf(sb, "<ctllunlist>\n"); 3019 3020 mtx_lock(&softc->ctl_lock); 3021 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3022 mtx_lock(&lun->lun_lock); 3023 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3024 (uintmax_t)lun->lun); 3025 3026 /* 3027 * Bail out as soon as we see that we've overfilled 3028 * the buffer. 3029 */ 3030 if (retval != 0) 3031 break; 3032 3033 retval = sbuf_printf(sb, "\t<backend_type>%s" 3034 "</backend_type>\n", 3035 (lun->backend == NULL) ? "none" : 3036 lun->backend->name); 3037 3038 if (retval != 0) 3039 break; 3040 3041 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3042 lun->be_lun->lun_type); 3043 3044 if (retval != 0) 3045 break; 3046 3047 if (lun->backend == NULL) { 3048 retval = sbuf_printf(sb, "</lun>\n"); 3049 if (retval != 0) 3050 break; 3051 continue; 3052 } 3053 3054 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3055 (lun->be_lun->maxlba > 0) ? 3056 lun->be_lun->maxlba + 1 : 0); 3057 3058 if (retval != 0) 3059 break; 3060 3061 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3062 lun->be_lun->blocksize); 3063 3064 if (retval != 0) 3065 break; 3066 3067 retval = sbuf_printf(sb, "\t<serial_number>"); 3068 3069 if (retval != 0) 3070 break; 3071 3072 retval = ctl_sbuf_printf_esc(sb, 3073 lun->be_lun->serial_num); 3074 3075 if (retval != 0) 3076 break; 3077 3078 retval = sbuf_printf(sb, "</serial_number>\n"); 3079 3080 if (retval != 0) 3081 break; 3082 3083 retval = sbuf_printf(sb, "\t<device_id>"); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = sbuf_printf(sb, "</device_id>\n"); 3094 3095 if (retval != 0) 3096 break; 3097 3098 if (lun->backend->lun_info != NULL) { 3099 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3100 if (retval != 0) 3101 break; 3102 } 3103 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3104 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3105 opt->name, opt->value, opt->name); 3106 if (retval != 0) 3107 break; 3108 } 3109 3110 retval = sbuf_printf(sb, "</lun>\n"); 3111 3112 if (retval != 0) 3113 break; 3114 mtx_unlock(&lun->lun_lock); 3115 } 3116 if (lun != NULL) 3117 mtx_unlock(&lun->lun_lock); 3118 mtx_unlock(&softc->ctl_lock); 3119 3120 if ((retval != 0) 3121 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3122 retval = 0; 3123 sbuf_delete(sb); 3124 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3125 snprintf(list->error_str, sizeof(list->error_str), 3126 "Out of space, %d bytes is too small", 3127 list->alloc_len); 3128 break; 3129 } 3130 3131 sbuf_finish(sb); 3132 3133 retval = copyout(sbuf_data(sb), list->lun_xml, 3134 sbuf_len(sb) + 1); 3135 3136 list->fill_len = sbuf_len(sb) + 1; 3137 list->status = CTL_LUN_LIST_OK; 3138 sbuf_delete(sb); 3139 break; 3140 } 3141 case CTL_ISCSI: { 3142 struct ctl_iscsi *ci; 3143 struct ctl_frontend *fe; 3144 3145 ci = (struct ctl_iscsi *)addr; 3146 3147 fe = ctl_frontend_find("iscsi"); 3148 if (fe == NULL) { 3149 ci->status = CTL_ISCSI_ERROR; 3150 snprintf(ci->error_str, sizeof(ci->error_str), 3151 "Frontend \"iscsi\" not found."); 3152 break; 3153 } 3154 3155 retval = fe->ioctl(dev, cmd, addr, flag, td); 3156 break; 3157 } 3158 case CTL_PORT_REQ: { 3159 struct ctl_req *req; 3160 struct ctl_frontend *fe; 3161 3162 req = (struct ctl_req *)addr; 3163 3164 fe = ctl_frontend_find(req->driver); 3165 if (fe == NULL) { 3166 req->status = CTL_LUN_ERROR; 3167 snprintf(req->error_str, sizeof(req->error_str), 3168 "Frontend \"%s\" not found.", req->driver); 3169 break; 3170 } 3171 if (req->num_args > 0) { 3172 req->kern_args = ctl_copyin_args(req->num_args, 3173 req->args, req->error_str, sizeof(req->error_str)); 3174 if (req->kern_args == NULL) { 3175 req->status = CTL_LUN_ERROR; 3176 break; 3177 } 3178 } 3179 3180 retval = fe->ioctl(dev, cmd, addr, flag, td); 3181 3182 if (req->num_args > 0) { 3183 ctl_copyout_args(req->num_args, req->kern_args); 3184 ctl_free_args(req->num_args, req->kern_args); 3185 } 3186 break; 3187 } 3188 case CTL_PORT_LIST: { 3189 struct sbuf *sb; 3190 struct ctl_port *port; 3191 struct ctl_lun_list *list; 3192 struct ctl_option *opt; 3193 3194 list = (struct ctl_lun_list *)addr; 3195 3196 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3197 if (sb == NULL) { 3198 list->status = CTL_LUN_LIST_ERROR; 3199 snprintf(list->error_str, sizeof(list->error_str), 3200 "Unable to allocate %d bytes for LUN list", 3201 list->alloc_len); 3202 break; 3203 } 3204 3205 sbuf_printf(sb, "<ctlportlist>\n"); 3206 3207 mtx_lock(&softc->ctl_lock); 3208 STAILQ_FOREACH(port, &softc->port_list, links) { 3209 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3210 (uintmax_t)port->targ_port); 3211 3212 /* 3213 * Bail out as soon as we see that we've overfilled 3214 * the buffer. 3215 */ 3216 if (retval != 0) 3217 break; 3218 3219 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3220 "</frontend_type>\n", port->frontend->name); 3221 if (retval != 0) 3222 break; 3223 3224 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3225 port->port_type); 3226 if (retval != 0) 3227 break; 3228 3229 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3230 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3231 if (retval != 0) 3232 break; 3233 3234 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3235 port->port_name); 3236 if (retval != 0) 3237 break; 3238 3239 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3240 port->physical_port); 3241 if (retval != 0) 3242 break; 3243 3244 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3245 port->virtual_port); 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3250 (uintmax_t)port->wwnn); 3251 if (retval != 0) 3252 break; 3253 3254 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3255 (uintmax_t)port->wwpn); 3256 if (retval != 0) 3257 break; 3258 3259 if (port->port_info != NULL) { 3260 retval = port->port_info(port->onoff_arg, sb); 3261 if (retval != 0) 3262 break; 3263 } 3264 STAILQ_FOREACH(opt, &port->options, links) { 3265 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3266 opt->name, opt->value, opt->name); 3267 if (retval != 0) 3268 break; 3269 } 3270 3271 retval = sbuf_printf(sb, "</targ_port>\n"); 3272 if (retval != 0) 3273 break; 3274 } 3275 mtx_unlock(&softc->ctl_lock); 3276 3277 if ((retval != 0) 3278 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3279 retval = 0; 3280 sbuf_delete(sb); 3281 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3282 snprintf(list->error_str, sizeof(list->error_str), 3283 "Out of space, %d bytes is too small", 3284 list->alloc_len); 3285 break; 3286 } 3287 3288 sbuf_finish(sb); 3289 3290 retval = copyout(sbuf_data(sb), list->lun_xml, 3291 sbuf_len(sb) + 1); 3292 3293 list->fill_len = sbuf_len(sb) + 1; 3294 list->status = CTL_LUN_LIST_OK; 3295 sbuf_delete(sb); 3296 break; 3297 } 3298 default: { 3299 /* XXX KDM should we fix this? */ 3300#if 0 3301 struct ctl_backend_driver *backend; 3302 unsigned int type; 3303 int found; 3304 3305 found = 0; 3306 3307 /* 3308 * We encode the backend type as the ioctl type for backend 3309 * ioctls. So parse it out here, and then search for a 3310 * backend of this type. 3311 */ 3312 type = _IOC_TYPE(cmd); 3313 3314 STAILQ_FOREACH(backend, &softc->be_list, links) { 3315 if (backend->type == type) { 3316 found = 1; 3317 break; 3318 } 3319 } 3320 if (found == 0) { 3321 printf("ctl: unknown ioctl command %#lx or backend " 3322 "%d\n", cmd, type); 3323 retval = EINVAL; 3324 break; 3325 } 3326 retval = backend->ioctl(dev, cmd, addr, flag, td); 3327#endif 3328 retval = ENOTTY; 3329 break; 3330 } 3331 } 3332 return (retval); 3333} 3334 3335uint32_t 3336ctl_get_initindex(struct ctl_nexus *nexus) 3337{ 3338 if (nexus->targ_port < CTL_MAX_PORTS) 3339 return (nexus->initid.id + 3340 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3341 else 3342 return (nexus->initid.id + 3343 ((nexus->targ_port - CTL_MAX_PORTS) * 3344 CTL_MAX_INIT_PER_PORT)); 3345} 3346 3347uint32_t 3348ctl_get_resindex(struct ctl_nexus *nexus) 3349{ 3350 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3351} 3352 3353uint32_t 3354ctl_port_idx(int port_num) 3355{ 3356 if (port_num < CTL_MAX_PORTS) 3357 return(port_num); 3358 else 3359 return(port_num - CTL_MAX_PORTS); 3360} 3361 3362static uint32_t 3363ctl_map_lun(int port_num, uint32_t lun_id) 3364{ 3365 struct ctl_port *port; 3366 3367 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3368 if (port == NULL) 3369 return (UINT32_MAX); 3370 if (port->lun_map == NULL) 3371 return (lun_id); 3372 return (port->lun_map(port->targ_lun_arg, lun_id)); 3373} 3374 3375static uint32_t 3376ctl_map_lun_back(int port_num, uint32_t lun_id) 3377{ 3378 struct ctl_port *port; 3379 uint32_t i; 3380 3381 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3382 if (port->lun_map == NULL) 3383 return (lun_id); 3384 for (i = 0; i < CTL_MAX_LUNS; i++) { 3385 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3386 return (i); 3387 } 3388 return (UINT32_MAX); 3389} 3390 3391/* 3392 * Note: This only works for bitmask sizes that are at least 32 bits, and 3393 * that are a power of 2. 3394 */ 3395int 3396ctl_ffz(uint32_t *mask, uint32_t size) 3397{ 3398 uint32_t num_chunks, num_pieces; 3399 int i, j; 3400 3401 num_chunks = (size >> 5); 3402 if (num_chunks == 0) 3403 num_chunks++; 3404 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3405 3406 for (i = 0; i < num_chunks; i++) { 3407 for (j = 0; j < num_pieces; j++) { 3408 if ((mask[i] & (1 << j)) == 0) 3409 return ((i << 5) + j); 3410 } 3411 } 3412 3413 return (-1); 3414} 3415 3416int 3417ctl_set_mask(uint32_t *mask, uint32_t bit) 3418{ 3419 uint32_t chunk, piece; 3420 3421 chunk = bit >> 5; 3422 piece = bit % (sizeof(uint32_t) * 8); 3423 3424 if ((mask[chunk] & (1 << piece)) != 0) 3425 return (-1); 3426 else 3427 mask[chunk] |= (1 << piece); 3428 3429 return (0); 3430} 3431 3432int 3433ctl_clear_mask(uint32_t *mask, uint32_t bit) 3434{ 3435 uint32_t chunk, piece; 3436 3437 chunk = bit >> 5; 3438 piece = bit % (sizeof(uint32_t) * 8); 3439 3440 if ((mask[chunk] & (1 << piece)) == 0) 3441 return (-1); 3442 else 3443 mask[chunk] &= ~(1 << piece); 3444 3445 return (0); 3446} 3447 3448int 3449ctl_is_set(uint32_t *mask, uint32_t bit) 3450{ 3451 uint32_t chunk, piece; 3452 3453 chunk = bit >> 5; 3454 piece = bit % (sizeof(uint32_t) * 8); 3455 3456 if ((mask[chunk] & (1 << piece)) == 0) 3457 return (0); 3458 else 3459 return (1); 3460} 3461 3462#ifdef unused 3463/* 3464 * The bus, target and lun are optional, they can be filled in later. 3465 * can_wait is used to determine whether we can wait on the malloc or not. 3466 */ 3467union ctl_io* 3468ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3469 uint32_t targ_lun, int can_wait) 3470{ 3471 union ctl_io *io; 3472 3473 if (can_wait) 3474 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3475 else 3476 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3477 3478 if (io != NULL) { 3479 io->io_hdr.io_type = io_type; 3480 io->io_hdr.targ_port = targ_port; 3481 /* 3482 * XXX KDM this needs to change/go away. We need to move 3483 * to a preallocated pool of ctl_scsiio structures. 3484 */ 3485 io->io_hdr.nexus.targ_target.id = targ_target; 3486 io->io_hdr.nexus.targ_lun = targ_lun; 3487 } 3488 3489 return (io); 3490} 3491 3492void 3493ctl_kfree_io(union ctl_io *io) 3494{ 3495 free(io, M_CTL); 3496} 3497#endif /* unused */ 3498 3499/* 3500 * ctl_softc, pool_type, total_ctl_io are passed in. 3501 * npool is passed out. 3502 */ 3503int 3504ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3505 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3506{ 3507 uint32_t i; 3508 union ctl_io *cur_io, *next_io; 3509 struct ctl_io_pool *pool; 3510 int retval; 3511 3512 retval = 0; 3513 3514 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3515 M_NOWAIT | M_ZERO); 3516 if (pool == NULL) { 3517 retval = ENOMEM; 3518 goto bailout; 3519 } 3520 3521 pool->type = pool_type; 3522 pool->ctl_softc = ctl_softc; 3523 3524 mtx_lock(&ctl_softc->pool_lock); 3525 pool->id = ctl_softc->cur_pool_id++; 3526 mtx_unlock(&ctl_softc->pool_lock); 3527 3528 pool->flags = CTL_POOL_FLAG_NONE; 3529 pool->refcount = 1; /* Reference for validity. */ 3530 STAILQ_INIT(&pool->free_queue); 3531 3532 /* 3533 * XXX KDM other options here: 3534 * - allocate a page at a time 3535 * - allocate one big chunk of memory. 3536 * Page allocation might work well, but would take a little more 3537 * tracking. 3538 */ 3539 for (i = 0; i < total_ctl_io; i++) { 3540 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3541 M_NOWAIT); 3542 if (cur_io == NULL) { 3543 retval = ENOMEM; 3544 break; 3545 } 3546 cur_io->io_hdr.pool = pool; 3547 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3548 pool->total_ctl_io++; 3549 pool->free_ctl_io++; 3550 } 3551 3552 if (retval != 0) { 3553 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3554 cur_io != NULL; cur_io = next_io) { 3555 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3556 links); 3557 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3558 ctl_io_hdr, links); 3559 free(cur_io, M_CTLIO); 3560 } 3561 3562 free(pool, M_CTL); 3563 goto bailout; 3564 } 3565 mtx_lock(&ctl_softc->pool_lock); 3566 ctl_softc->num_pools++; 3567 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3568 /* 3569 * Increment our usage count if this is an external consumer, so we 3570 * can't get unloaded until the external consumer (most likely a 3571 * FETD) unloads and frees his pool. 3572 * 3573 * XXX KDM will this increment the caller's module use count, or 3574 * mine? 3575 */ 3576#if 0 3577 if ((pool_type != CTL_POOL_EMERGENCY) 3578 && (pool_type != CTL_POOL_INTERNAL) 3579 && (pool_type != CTL_POOL_4OTHERSC)) 3580 MOD_INC_USE_COUNT; 3581#endif 3582 3583 mtx_unlock(&ctl_softc->pool_lock); 3584 3585 *npool = pool; 3586 3587bailout: 3588 3589 return (retval); 3590} 3591 3592static int 3593ctl_pool_acquire(struct ctl_io_pool *pool) 3594{ 3595 3596 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3597 3598 if (pool->flags & CTL_POOL_FLAG_INVALID) 3599 return (EINVAL); 3600 3601 pool->refcount++; 3602 3603 return (0); 3604} 3605 3606static void 3607ctl_pool_release(struct ctl_io_pool *pool) 3608{ 3609 struct ctl_softc *ctl_softc = pool->ctl_softc; 3610 union ctl_io *io; 3611 3612 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3613 3614 if (--pool->refcount != 0) 3615 return; 3616 3617 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3618 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3619 links); 3620 free(io, M_CTLIO); 3621 } 3622 3623 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3624 ctl_softc->num_pools--; 3625 3626 /* 3627 * XXX KDM will this decrement the caller's usage count or mine? 3628 */ 3629#if 0 3630 if ((pool->type != CTL_POOL_EMERGENCY) 3631 && (pool->type != CTL_POOL_INTERNAL) 3632 && (pool->type != CTL_POOL_4OTHERSC)) 3633 MOD_DEC_USE_COUNT; 3634#endif 3635 3636 free(pool, M_CTL); 3637} 3638 3639void 3640ctl_pool_free(struct ctl_io_pool *pool) 3641{ 3642 struct ctl_softc *ctl_softc; 3643 3644 if (pool == NULL) 3645 return; 3646 3647 ctl_softc = pool->ctl_softc; 3648 mtx_lock(&ctl_softc->pool_lock); 3649 pool->flags |= CTL_POOL_FLAG_INVALID; 3650 ctl_pool_release(pool); 3651 mtx_unlock(&ctl_softc->pool_lock); 3652} 3653 3654/* 3655 * This routine does not block (except for spinlocks of course). 3656 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3657 * possible. 3658 */ 3659union ctl_io * 3660ctl_alloc_io(void *pool_ref) 3661{ 3662 union ctl_io *io; 3663 struct ctl_softc *ctl_softc; 3664 struct ctl_io_pool *pool, *npool; 3665 struct ctl_io_pool *emergency_pool; 3666 3667 pool = (struct ctl_io_pool *)pool_ref; 3668 3669 if (pool == NULL) { 3670 printf("%s: pool is NULL\n", __func__); 3671 return (NULL); 3672 } 3673 3674 emergency_pool = NULL; 3675 3676 ctl_softc = pool->ctl_softc; 3677 3678 mtx_lock(&ctl_softc->pool_lock); 3679 /* 3680 * First, try to get the io structure from the user's pool. 3681 */ 3682 if (ctl_pool_acquire(pool) == 0) { 3683 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3684 if (io != NULL) { 3685 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3686 pool->total_allocated++; 3687 pool->free_ctl_io--; 3688 mtx_unlock(&ctl_softc->pool_lock); 3689 return (io); 3690 } else 3691 ctl_pool_release(pool); 3692 } 3693 /* 3694 * If he doesn't have any io structures left, search for an 3695 * emergency pool and grab one from there. 3696 */ 3697 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3698 if (npool->type != CTL_POOL_EMERGENCY) 3699 continue; 3700 3701 if (ctl_pool_acquire(npool) != 0) 3702 continue; 3703 3704 emergency_pool = npool; 3705 3706 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3707 if (io != NULL) { 3708 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3709 npool->total_allocated++; 3710 npool->free_ctl_io--; 3711 mtx_unlock(&ctl_softc->pool_lock); 3712 return (io); 3713 } else 3714 ctl_pool_release(npool); 3715 } 3716 3717 /* Drop the spinlock before we malloc */ 3718 mtx_unlock(&ctl_softc->pool_lock); 3719 3720 /* 3721 * The emergency pool (if it exists) didn't have one, so try an 3722 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3723 */ 3724 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3725 if (io != NULL) { 3726 /* 3727 * If the emergency pool exists but is empty, add this 3728 * ctl_io to its list when it gets freed. 3729 */ 3730 if (emergency_pool != NULL) { 3731 mtx_lock(&ctl_softc->pool_lock); 3732 if (ctl_pool_acquire(emergency_pool) == 0) { 3733 io->io_hdr.pool = emergency_pool; 3734 emergency_pool->total_ctl_io++; 3735 /* 3736 * Need to bump this, otherwise 3737 * total_allocated and total_freed won't 3738 * match when we no longer have anything 3739 * outstanding. 3740 */ 3741 emergency_pool->total_allocated++; 3742 } 3743 mtx_unlock(&ctl_softc->pool_lock); 3744 } else 3745 io->io_hdr.pool = NULL; 3746 } 3747 3748 return (io); 3749} 3750 3751void 3752ctl_free_io(union ctl_io *io) 3753{ 3754 if (io == NULL) 3755 return; 3756 3757 /* 3758 * If this ctl_io has a pool, return it to that pool. 3759 */ 3760 if (io->io_hdr.pool != NULL) { 3761 struct ctl_io_pool *pool; 3762 3763 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3764 mtx_lock(&pool->ctl_softc->pool_lock); 3765 io->io_hdr.io_type = 0xff; 3766 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3767 pool->total_freed++; 3768 pool->free_ctl_io++; 3769 ctl_pool_release(pool); 3770 mtx_unlock(&pool->ctl_softc->pool_lock); 3771 } else { 3772 /* 3773 * Otherwise, just free it. We probably malloced it and 3774 * the emergency pool wasn't available. 3775 */ 3776 free(io, M_CTLIO); 3777 } 3778 3779} 3780 3781void 3782ctl_zero_io(union ctl_io *io) 3783{ 3784 void *pool_ref; 3785 3786 if (io == NULL) 3787 return; 3788 3789 /* 3790 * May need to preserve linked list pointers at some point too. 3791 */ 3792 pool_ref = io->io_hdr.pool; 3793 3794 memset(io, 0, sizeof(*io)); 3795 3796 io->io_hdr.pool = pool_ref; 3797} 3798 3799/* 3800 * This routine is currently used for internal copies of ctl_ios that need 3801 * to persist for some reason after we've already returned status to the 3802 * FETD. (Thus the flag set.) 3803 * 3804 * XXX XXX 3805 * Note that this makes a blind copy of all fields in the ctl_io, except 3806 * for the pool reference. This includes any memory that has been 3807 * allocated! That memory will no longer be valid after done has been 3808 * called, so this would be VERY DANGEROUS for command that actually does 3809 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3810 * start and stop commands, which don't transfer any data, so this is not a 3811 * problem. If it is used for anything else, the caller would also need to 3812 * allocate data buffer space and this routine would need to be modified to 3813 * copy the data buffer(s) as well. 3814 */ 3815void 3816ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3817{ 3818 void *pool_ref; 3819 3820 if ((src == NULL) 3821 || (dest == NULL)) 3822 return; 3823 3824 /* 3825 * May need to preserve linked list pointers at some point too. 3826 */ 3827 pool_ref = dest->io_hdr.pool; 3828 3829 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3830 3831 dest->io_hdr.pool = pool_ref; 3832 /* 3833 * We need to know that this is an internal copy, and doesn't need 3834 * to get passed back to the FETD that allocated it. 3835 */ 3836 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3837} 3838 3839#ifdef NEEDTOPORT 3840static void 3841ctl_update_power_subpage(struct copan_power_subpage *page) 3842{ 3843 int num_luns, num_partitions, config_type; 3844 struct ctl_softc *softc; 3845 cs_BOOL_t aor_present, shelf_50pct_power; 3846 cs_raidset_personality_t rs_type; 3847 int max_active_luns; 3848 3849 softc = control_softc; 3850 3851 /* subtract out the processor LUN */ 3852 num_luns = softc->num_luns - 1; 3853 /* 3854 * Default to 7 LUNs active, which was the only number we allowed 3855 * in the past. 3856 */ 3857 max_active_luns = 7; 3858 3859 num_partitions = config_GetRsPartitionInfo(); 3860 config_type = config_GetConfigType(); 3861 shelf_50pct_power = config_GetShelfPowerMode(); 3862 aor_present = config_IsAorRsPresent(); 3863 3864 rs_type = ddb_GetRsRaidType(1); 3865 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3866 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3867 EPRINT(0, "Unsupported RS type %d!", rs_type); 3868 } 3869 3870 3871 page->total_luns = num_luns; 3872 3873 switch (config_type) { 3874 case 40: 3875 /* 3876 * In a 40 drive configuration, it doesn't matter what DC 3877 * cards we have, whether we have AOR enabled or not, 3878 * partitioning or not, or what type of RAIDset we have. 3879 * In that scenario, we can power up every LUN we present 3880 * to the user. 3881 */ 3882 max_active_luns = num_luns; 3883 3884 break; 3885 case 64: 3886 if (shelf_50pct_power == CS_FALSE) { 3887 /* 25% power */ 3888 if (aor_present == CS_TRUE) { 3889 if (rs_type == 3890 CS_RAIDSET_PERSONALITY_RAID5) { 3891 max_active_luns = 7; 3892 } else if (rs_type == 3893 CS_RAIDSET_PERSONALITY_RAID1){ 3894 max_active_luns = 14; 3895 } else { 3896 /* XXX KDM now what?? */ 3897 } 3898 } else { 3899 if (rs_type == 3900 CS_RAIDSET_PERSONALITY_RAID5) { 3901 max_active_luns = 8; 3902 } else if (rs_type == 3903 CS_RAIDSET_PERSONALITY_RAID1){ 3904 max_active_luns = 16; 3905 } else { 3906 /* XXX KDM now what?? */ 3907 } 3908 } 3909 } else { 3910 /* 50% power */ 3911 /* 3912 * With 50% power in a 64 drive configuration, we 3913 * can power all LUNs we present. 3914 */ 3915 max_active_luns = num_luns; 3916 } 3917 break; 3918 case 112: 3919 if (shelf_50pct_power == CS_FALSE) { 3920 /* 25% power */ 3921 if (aor_present == CS_TRUE) { 3922 if (rs_type == 3923 CS_RAIDSET_PERSONALITY_RAID5) { 3924 max_active_luns = 7; 3925 } else if (rs_type == 3926 CS_RAIDSET_PERSONALITY_RAID1){ 3927 max_active_luns = 14; 3928 } else { 3929 /* XXX KDM now what?? */ 3930 } 3931 } else { 3932 if (rs_type == 3933 CS_RAIDSET_PERSONALITY_RAID5) { 3934 max_active_luns = 8; 3935 } else if (rs_type == 3936 CS_RAIDSET_PERSONALITY_RAID1){ 3937 max_active_luns = 16; 3938 } else { 3939 /* XXX KDM now what?? */ 3940 } 3941 } 3942 } else { 3943 /* 50% power */ 3944 if (aor_present == CS_TRUE) { 3945 if (rs_type == 3946 CS_RAIDSET_PERSONALITY_RAID5) { 3947 max_active_luns = 14; 3948 } else if (rs_type == 3949 CS_RAIDSET_PERSONALITY_RAID1){ 3950 /* 3951 * We're assuming here that disk 3952 * caching is enabled, and so we're 3953 * able to power up half of each 3954 * LUN, and cache all writes. 3955 */ 3956 max_active_luns = num_luns; 3957 } else { 3958 /* XXX KDM now what?? */ 3959 } 3960 } else { 3961 if (rs_type == 3962 CS_RAIDSET_PERSONALITY_RAID5) { 3963 max_active_luns = 15; 3964 } else if (rs_type == 3965 CS_RAIDSET_PERSONALITY_RAID1){ 3966 max_active_luns = 30; 3967 } else { 3968 /* XXX KDM now what?? */ 3969 } 3970 } 3971 } 3972 break; 3973 default: 3974 /* 3975 * In this case, we have an unknown configuration, so we 3976 * just use the default from above. 3977 */ 3978 break; 3979 } 3980 3981 page->max_active_luns = max_active_luns; 3982#if 0 3983 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 3984 page->total_luns, page->max_active_luns); 3985#endif 3986} 3987#endif /* NEEDTOPORT */ 3988 3989/* 3990 * This routine could be used in the future to load default and/or saved 3991 * mode page parameters for a particuar lun. 3992 */ 3993static int 3994ctl_init_page_index(struct ctl_lun *lun) 3995{ 3996 int i; 3997 struct ctl_page_index *page_index; 3998 struct ctl_softc *softc; 3999 4000 memcpy(&lun->mode_pages.index, page_index_template, 4001 sizeof(page_index_template)); 4002 4003 softc = lun->ctl_softc; 4004 4005 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4006 4007 page_index = &lun->mode_pages.index[i]; 4008 /* 4009 * If this is a disk-only mode page, there's no point in 4010 * setting it up. For some pages, we have to have some 4011 * basic information about the disk in order to calculate the 4012 * mode page data. 4013 */ 4014 if ((lun->be_lun->lun_type != T_DIRECT) 4015 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4016 continue; 4017 4018 switch (page_index->page_code & SMPH_PC_MASK) { 4019 case SMS_FORMAT_DEVICE_PAGE: { 4020 struct scsi_format_page *format_page; 4021 4022 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4023 panic("subpage is incorrect!"); 4024 4025 /* 4026 * Sectors per track are set above. Bytes per 4027 * sector need to be set here on a per-LUN basis. 4028 */ 4029 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4030 &format_page_default, 4031 sizeof(format_page_default)); 4032 memcpy(&lun->mode_pages.format_page[ 4033 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4034 sizeof(format_page_changeable)); 4035 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4036 &format_page_default, 4037 sizeof(format_page_default)); 4038 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4039 &format_page_default, 4040 sizeof(format_page_default)); 4041 4042 format_page = &lun->mode_pages.format_page[ 4043 CTL_PAGE_CURRENT]; 4044 scsi_ulto2b(lun->be_lun->blocksize, 4045 format_page->bytes_per_sector); 4046 4047 format_page = &lun->mode_pages.format_page[ 4048 CTL_PAGE_DEFAULT]; 4049 scsi_ulto2b(lun->be_lun->blocksize, 4050 format_page->bytes_per_sector); 4051 4052 format_page = &lun->mode_pages.format_page[ 4053 CTL_PAGE_SAVED]; 4054 scsi_ulto2b(lun->be_lun->blocksize, 4055 format_page->bytes_per_sector); 4056 4057 page_index->page_data = 4058 (uint8_t *)lun->mode_pages.format_page; 4059 break; 4060 } 4061 case SMS_RIGID_DISK_PAGE: { 4062 struct scsi_rigid_disk_page *rigid_disk_page; 4063 uint32_t sectors_per_cylinder; 4064 uint64_t cylinders; 4065#ifndef __XSCALE__ 4066 int shift; 4067#endif /* !__XSCALE__ */ 4068 4069 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4070 panic("invalid subpage value %d", 4071 page_index->subpage); 4072 4073 /* 4074 * Rotation rate and sectors per track are set 4075 * above. We calculate the cylinders here based on 4076 * capacity. Due to the number of heads and 4077 * sectors per track we're using, smaller arrays 4078 * may turn out to have 0 cylinders. Linux and 4079 * FreeBSD don't pay attention to these mode pages 4080 * to figure out capacity, but Solaris does. It 4081 * seems to deal with 0 cylinders just fine, and 4082 * works out a fake geometry based on the capacity. 4083 */ 4084 memcpy(&lun->mode_pages.rigid_disk_page[ 4085 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4086 sizeof(rigid_disk_page_default)); 4087 memcpy(&lun->mode_pages.rigid_disk_page[ 4088 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4089 sizeof(rigid_disk_page_changeable)); 4090 memcpy(&lun->mode_pages.rigid_disk_page[ 4091 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4092 sizeof(rigid_disk_page_default)); 4093 memcpy(&lun->mode_pages.rigid_disk_page[ 4094 CTL_PAGE_SAVED], &rigid_disk_page_default, 4095 sizeof(rigid_disk_page_default)); 4096 4097 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4098 CTL_DEFAULT_HEADS; 4099 4100 /* 4101 * The divide method here will be more accurate, 4102 * probably, but results in floating point being 4103 * used in the kernel on i386 (__udivdi3()). On the 4104 * XScale, though, __udivdi3() is implemented in 4105 * software. 4106 * 4107 * The shift method for cylinder calculation is 4108 * accurate if sectors_per_cylinder is a power of 4109 * 2. Otherwise it might be slightly off -- you 4110 * might have a bit of a truncation problem. 4111 */ 4112#ifdef __XSCALE__ 4113 cylinders = (lun->be_lun->maxlba + 1) / 4114 sectors_per_cylinder; 4115#else 4116 for (shift = 31; shift > 0; shift--) { 4117 if (sectors_per_cylinder & (1 << shift)) 4118 break; 4119 } 4120 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4121#endif 4122 4123 /* 4124 * We've basically got 3 bytes, or 24 bits for the 4125 * cylinder size in the mode page. If we're over, 4126 * just round down to 2^24. 4127 */ 4128 if (cylinders > 0xffffff) 4129 cylinders = 0xffffff; 4130 4131 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4132 CTL_PAGE_CURRENT]; 4133 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4134 4135 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4136 CTL_PAGE_DEFAULT]; 4137 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4138 4139 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4140 CTL_PAGE_SAVED]; 4141 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4142 4143 page_index->page_data = 4144 (uint8_t *)lun->mode_pages.rigid_disk_page; 4145 break; 4146 } 4147 case SMS_CACHING_PAGE: { 4148 4149 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4150 panic("invalid subpage value %d", 4151 page_index->subpage); 4152 /* 4153 * Defaults should be okay here, no calculations 4154 * needed. 4155 */ 4156 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4157 &caching_page_default, 4158 sizeof(caching_page_default)); 4159 memcpy(&lun->mode_pages.caching_page[ 4160 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4161 sizeof(caching_page_changeable)); 4162 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4163 &caching_page_default, 4164 sizeof(caching_page_default)); 4165 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4166 &caching_page_default, 4167 sizeof(caching_page_default)); 4168 page_index->page_data = 4169 (uint8_t *)lun->mode_pages.caching_page; 4170 break; 4171 } 4172 case SMS_CONTROL_MODE_PAGE: { 4173 4174 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4175 panic("invalid subpage value %d", 4176 page_index->subpage); 4177 4178 /* 4179 * Defaults should be okay here, no calculations 4180 * needed. 4181 */ 4182 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4183 &control_page_default, 4184 sizeof(control_page_default)); 4185 memcpy(&lun->mode_pages.control_page[ 4186 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4187 sizeof(control_page_changeable)); 4188 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4189 &control_page_default, 4190 sizeof(control_page_default)); 4191 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4192 &control_page_default, 4193 sizeof(control_page_default)); 4194 page_index->page_data = 4195 (uint8_t *)lun->mode_pages.control_page; 4196 break; 4197 4198 } 4199 case SMS_VENDOR_SPECIFIC_PAGE:{ 4200 switch (page_index->subpage) { 4201 case PWR_SUBPAGE_CODE: { 4202 struct copan_power_subpage *current_page, 4203 *saved_page; 4204 4205 memcpy(&lun->mode_pages.power_subpage[ 4206 CTL_PAGE_CURRENT], 4207 &power_page_default, 4208 sizeof(power_page_default)); 4209 memcpy(&lun->mode_pages.power_subpage[ 4210 CTL_PAGE_CHANGEABLE], 4211 &power_page_changeable, 4212 sizeof(power_page_changeable)); 4213 memcpy(&lun->mode_pages.power_subpage[ 4214 CTL_PAGE_DEFAULT], 4215 &power_page_default, 4216 sizeof(power_page_default)); 4217 memcpy(&lun->mode_pages.power_subpage[ 4218 CTL_PAGE_SAVED], 4219 &power_page_default, 4220 sizeof(power_page_default)); 4221 page_index->page_data = 4222 (uint8_t *)lun->mode_pages.power_subpage; 4223 4224 current_page = (struct copan_power_subpage *) 4225 (page_index->page_data + 4226 (page_index->page_len * 4227 CTL_PAGE_CURRENT)); 4228 saved_page = (struct copan_power_subpage *) 4229 (page_index->page_data + 4230 (page_index->page_len * 4231 CTL_PAGE_SAVED)); 4232 break; 4233 } 4234 case APS_SUBPAGE_CODE: { 4235 struct copan_aps_subpage *current_page, 4236 *saved_page; 4237 4238 // This gets set multiple times but 4239 // it should always be the same. It's 4240 // only done during init so who cares. 4241 index_to_aps_page = i; 4242 4243 memcpy(&lun->mode_pages.aps_subpage[ 4244 CTL_PAGE_CURRENT], 4245 &aps_page_default, 4246 sizeof(aps_page_default)); 4247 memcpy(&lun->mode_pages.aps_subpage[ 4248 CTL_PAGE_CHANGEABLE], 4249 &aps_page_changeable, 4250 sizeof(aps_page_changeable)); 4251 memcpy(&lun->mode_pages.aps_subpage[ 4252 CTL_PAGE_DEFAULT], 4253 &aps_page_default, 4254 sizeof(aps_page_default)); 4255 memcpy(&lun->mode_pages.aps_subpage[ 4256 CTL_PAGE_SAVED], 4257 &aps_page_default, 4258 sizeof(aps_page_default)); 4259 page_index->page_data = 4260 (uint8_t *)lun->mode_pages.aps_subpage; 4261 4262 current_page = (struct copan_aps_subpage *) 4263 (page_index->page_data + 4264 (page_index->page_len * 4265 CTL_PAGE_CURRENT)); 4266 saved_page = (struct copan_aps_subpage *) 4267 (page_index->page_data + 4268 (page_index->page_len * 4269 CTL_PAGE_SAVED)); 4270 break; 4271 } 4272 case DBGCNF_SUBPAGE_CODE: { 4273 struct copan_debugconf_subpage *current_page, 4274 *saved_page; 4275 4276 memcpy(&lun->mode_pages.debugconf_subpage[ 4277 CTL_PAGE_CURRENT], 4278 &debugconf_page_default, 4279 sizeof(debugconf_page_default)); 4280 memcpy(&lun->mode_pages.debugconf_subpage[ 4281 CTL_PAGE_CHANGEABLE], 4282 &debugconf_page_changeable, 4283 sizeof(debugconf_page_changeable)); 4284 memcpy(&lun->mode_pages.debugconf_subpage[ 4285 CTL_PAGE_DEFAULT], 4286 &debugconf_page_default, 4287 sizeof(debugconf_page_default)); 4288 memcpy(&lun->mode_pages.debugconf_subpage[ 4289 CTL_PAGE_SAVED], 4290 &debugconf_page_default, 4291 sizeof(debugconf_page_default)); 4292 page_index->page_data = 4293 (uint8_t *)lun->mode_pages.debugconf_subpage; 4294 4295 current_page = (struct copan_debugconf_subpage *) 4296 (page_index->page_data + 4297 (page_index->page_len * 4298 CTL_PAGE_CURRENT)); 4299 saved_page = (struct copan_debugconf_subpage *) 4300 (page_index->page_data + 4301 (page_index->page_len * 4302 CTL_PAGE_SAVED)); 4303 break; 4304 } 4305 default: 4306 panic("invalid subpage value %d", 4307 page_index->subpage); 4308 break; 4309 } 4310 break; 4311 } 4312 default: 4313 panic("invalid page value %d", 4314 page_index->page_code & SMPH_PC_MASK); 4315 break; 4316 } 4317 } 4318 4319 return (CTL_RETVAL_COMPLETE); 4320} 4321 4322/* 4323 * LUN allocation. 4324 * 4325 * Requirements: 4326 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4327 * wants us to allocate the LUN and he can block. 4328 * - ctl_softc is always set 4329 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4330 * 4331 * Returns 0 for success, non-zero (errno) for failure. 4332 */ 4333static int 4334ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4335 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4336{ 4337 struct ctl_lun *nlun, *lun; 4338 struct ctl_port *port; 4339 struct scsi_vpd_id_descriptor *desc; 4340 struct scsi_vpd_id_t10 *t10id; 4341 const char *scsiname, *vendor; 4342 int lun_number, i, lun_malloced; 4343 int devidlen, idlen1, idlen2 = 0, len; 4344 4345 if (be_lun == NULL) 4346 return (EINVAL); 4347 4348 /* 4349 * We currently only support Direct Access or Processor LUN types. 4350 */ 4351 switch (be_lun->lun_type) { 4352 case T_DIRECT: 4353 break; 4354 case T_PROCESSOR: 4355 break; 4356 case T_SEQUENTIAL: 4357 case T_CHANGER: 4358 default: 4359 be_lun->lun_config_status(be_lun->be_lun, 4360 CTL_LUN_CONFIG_FAILURE); 4361 break; 4362 } 4363 if (ctl_lun == NULL) { 4364 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4365 lun_malloced = 1; 4366 } else { 4367 lun_malloced = 0; 4368 lun = ctl_lun; 4369 } 4370 4371 memset(lun, 0, sizeof(*lun)); 4372 if (lun_malloced) 4373 lun->flags = CTL_LUN_MALLOCED; 4374 4375 /* Generate LUN ID. */ 4376 devidlen = max(CTL_DEVID_MIN_LEN, 4377 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4378 idlen1 = sizeof(*t10id) + devidlen; 4379 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4380 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4381 if (scsiname != NULL) { 4382 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4383 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4384 } 4385 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4386 M_CTL, M_WAITOK | M_ZERO); 4387 lun->lun_devid->len = len; 4388 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4389 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4390 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4391 desc->length = idlen1; 4392 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4393 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4394 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4395 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4396 } else { 4397 strncpy(t10id->vendor, vendor, 4398 min(sizeof(t10id->vendor), strlen(vendor))); 4399 } 4400 strncpy((char *)t10id->vendor_spec_id, 4401 (char *)be_lun->device_id, devidlen); 4402 if (scsiname != NULL) { 4403 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4404 desc->length); 4405 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4406 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4407 SVPD_ID_TYPE_SCSI_NAME; 4408 desc->length = idlen2; 4409 strlcpy(desc->identifier, scsiname, idlen2); 4410 } 4411 4412 mtx_lock(&ctl_softc->ctl_lock); 4413 /* 4414 * See if the caller requested a particular LUN number. If so, see 4415 * if it is available. Otherwise, allocate the first available LUN. 4416 */ 4417 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4418 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4419 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4420 mtx_unlock(&ctl_softc->ctl_lock); 4421 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4422 printf("ctl: requested LUN ID %d is higher " 4423 "than CTL_MAX_LUNS - 1 (%d)\n", 4424 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4425 } else { 4426 /* 4427 * XXX KDM return an error, or just assign 4428 * another LUN ID in this case?? 4429 */ 4430 printf("ctl: requested LUN ID %d is already " 4431 "in use\n", be_lun->req_lun_id); 4432 } 4433 if (lun->flags & CTL_LUN_MALLOCED) 4434 free(lun, M_CTL); 4435 be_lun->lun_config_status(be_lun->be_lun, 4436 CTL_LUN_CONFIG_FAILURE); 4437 return (ENOSPC); 4438 } 4439 lun_number = be_lun->req_lun_id; 4440 } else { 4441 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4442 if (lun_number == -1) { 4443 mtx_unlock(&ctl_softc->ctl_lock); 4444 printf("ctl: can't allocate LUN on target %ju, out of " 4445 "LUNs\n", (uintmax_t)target_id.id); 4446 if (lun->flags & CTL_LUN_MALLOCED) 4447 free(lun, M_CTL); 4448 be_lun->lun_config_status(be_lun->be_lun, 4449 CTL_LUN_CONFIG_FAILURE); 4450 return (ENOSPC); 4451 } 4452 } 4453 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4454 4455 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4456 lun->target = target_id; 4457 lun->lun = lun_number; 4458 lun->be_lun = be_lun; 4459 /* 4460 * The processor LUN is always enabled. Disk LUNs come on line 4461 * disabled, and must be enabled by the backend. 4462 */ 4463 lun->flags |= CTL_LUN_DISABLED; 4464 lun->backend = be_lun->be; 4465 be_lun->ctl_lun = lun; 4466 be_lun->lun_id = lun_number; 4467 atomic_add_int(&be_lun->be->num_luns, 1); 4468 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4469 lun->flags |= CTL_LUN_STOPPED; 4470 4471 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4472 lun->flags |= CTL_LUN_INOPERABLE; 4473 4474 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4475 lun->flags |= CTL_LUN_PRIMARY_SC; 4476 4477 lun->ctl_softc = ctl_softc; 4478 TAILQ_INIT(&lun->ooa_queue); 4479 TAILQ_INIT(&lun->blocked_queue); 4480 STAILQ_INIT(&lun->error_list); 4481 4482 /* 4483 * Initialize the mode page index. 4484 */ 4485 ctl_init_page_index(lun); 4486 4487 /* 4488 * Set the poweron UA for all initiators on this LUN only. 4489 */ 4490 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4491 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4492 4493 /* 4494 * Now, before we insert this lun on the lun list, set the lun 4495 * inventory changed UA for all other luns. 4496 */ 4497 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4498 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4499 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4500 } 4501 } 4502 4503 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4504 4505 ctl_softc->ctl_luns[lun_number] = lun; 4506 4507 ctl_softc->num_luns++; 4508 4509 /* Setup statistics gathering */ 4510 lun->stats.device_type = be_lun->lun_type; 4511 lun->stats.lun_number = lun_number; 4512 if (lun->stats.device_type == T_DIRECT) 4513 lun->stats.blocksize = be_lun->blocksize; 4514 else 4515 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4516 for (i = 0;i < CTL_MAX_PORTS;i++) 4517 lun->stats.ports[i].targ_port = i; 4518 4519 mtx_unlock(&ctl_softc->ctl_lock); 4520 4521 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4522 4523 /* 4524 * Run through each registered FETD and bring it online if it isn't 4525 * already. Enable the target ID if it hasn't been enabled, and 4526 * enable this particular LUN. 4527 */ 4528 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4529 int retval; 4530 4531 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4532 if (retval != 0) { 4533 printf("ctl_alloc_lun: FETD %s port %d returned error " 4534 "%d for lun_enable on target %ju lun %d\n", 4535 port->port_name, port->targ_port, retval, 4536 (uintmax_t)target_id.id, lun_number); 4537 } else 4538 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4539 } 4540 return (0); 4541} 4542 4543/* 4544 * Delete a LUN. 4545 * Assumptions: 4546 * - LUN has already been marked invalid and any pending I/O has been taken 4547 * care of. 4548 */ 4549static int 4550ctl_free_lun(struct ctl_lun *lun) 4551{ 4552 struct ctl_softc *softc; 4553#if 0 4554 struct ctl_port *port; 4555#endif 4556 struct ctl_lun *nlun; 4557 int i; 4558 4559 softc = lun->ctl_softc; 4560 4561 mtx_assert(&softc->ctl_lock, MA_OWNED); 4562 4563 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4564 4565 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4566 4567 softc->ctl_luns[lun->lun] = NULL; 4568 4569 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4570 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4571 4572 softc->num_luns--; 4573 4574 /* 4575 * XXX KDM this scheme only works for a single target/multiple LUN 4576 * setup. It needs to be revamped for a multiple target scheme. 4577 * 4578 * XXX KDM this results in port->lun_disable() getting called twice, 4579 * once when ctl_disable_lun() is called, and a second time here. 4580 * We really need to re-think the LUN disable semantics. There 4581 * should probably be several steps/levels to LUN removal: 4582 * - disable 4583 * - invalidate 4584 * - free 4585 * 4586 * Right now we only have a disable method when communicating to 4587 * the front end ports, at least for individual LUNs. 4588 */ 4589#if 0 4590 STAILQ_FOREACH(port, &softc->port_list, links) { 4591 int retval; 4592 4593 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4594 lun->lun); 4595 if (retval != 0) { 4596 printf("ctl_free_lun: FETD %s port %d returned error " 4597 "%d for lun_disable on target %ju lun %jd\n", 4598 port->port_name, port->targ_port, retval, 4599 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4600 } 4601 4602 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4603 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4604 4605 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4606 if (retval != 0) { 4607 printf("ctl_free_lun: FETD %s port %d " 4608 "returned error %d for targ_disable on " 4609 "target %ju\n", port->port_name, 4610 port->targ_port, retval, 4611 (uintmax_t)lun->target.id); 4612 } else 4613 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4614 4615 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4616 continue; 4617 4618#if 0 4619 port->port_offline(port->onoff_arg); 4620 port->status &= ~CTL_PORT_STATUS_ONLINE; 4621#endif 4622 } 4623 } 4624#endif 4625 4626 /* 4627 * Tell the backend to free resources, if this LUN has a backend. 4628 */ 4629 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4630 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4631 4632 mtx_destroy(&lun->lun_lock); 4633 free(lun->lun_devid, M_CTL); 4634 if (lun->flags & CTL_LUN_MALLOCED) 4635 free(lun, M_CTL); 4636 4637 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4638 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4639 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4640 } 4641 } 4642 4643 return (0); 4644} 4645 4646static void 4647ctl_create_lun(struct ctl_be_lun *be_lun) 4648{ 4649 struct ctl_softc *ctl_softc; 4650 4651 ctl_softc = control_softc; 4652 4653 /* 4654 * ctl_alloc_lun() should handle all potential failure cases. 4655 */ 4656 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4657} 4658 4659int 4660ctl_add_lun(struct ctl_be_lun *be_lun) 4661{ 4662 struct ctl_softc *ctl_softc = control_softc; 4663 4664 mtx_lock(&ctl_softc->ctl_lock); 4665 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4666 mtx_unlock(&ctl_softc->ctl_lock); 4667 wakeup(&ctl_softc->pending_lun_queue); 4668 4669 return (0); 4670} 4671 4672int 4673ctl_enable_lun(struct ctl_be_lun *be_lun) 4674{ 4675 struct ctl_softc *ctl_softc; 4676 struct ctl_port *port, *nport; 4677 struct ctl_lun *lun; 4678 int retval; 4679 4680 ctl_softc = control_softc; 4681 4682 lun = (struct ctl_lun *)be_lun->ctl_lun; 4683 4684 mtx_lock(&ctl_softc->ctl_lock); 4685 mtx_lock(&lun->lun_lock); 4686 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4687 /* 4688 * eh? Why did we get called if the LUN is already 4689 * enabled? 4690 */ 4691 mtx_unlock(&lun->lun_lock); 4692 mtx_unlock(&ctl_softc->ctl_lock); 4693 return (0); 4694 } 4695 lun->flags &= ~CTL_LUN_DISABLED; 4696 mtx_unlock(&lun->lun_lock); 4697 4698 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4699 nport = STAILQ_NEXT(port, links); 4700 4701 /* 4702 * Drop the lock while we call the FETD's enable routine. 4703 * This can lead to a callback into CTL (at least in the 4704 * case of the internal initiator frontend. 4705 */ 4706 mtx_unlock(&ctl_softc->ctl_lock); 4707 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4708 mtx_lock(&ctl_softc->ctl_lock); 4709 if (retval != 0) { 4710 printf("%s: FETD %s port %d returned error " 4711 "%d for lun_enable on target %ju lun %jd\n", 4712 __func__, port->port_name, port->targ_port, retval, 4713 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4714 } 4715#if 0 4716 else { 4717 /* NOTE: TODO: why does lun enable affect port status? */ 4718 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4719 } 4720#endif 4721 } 4722 4723 mtx_unlock(&ctl_softc->ctl_lock); 4724 4725 return (0); 4726} 4727 4728int 4729ctl_disable_lun(struct ctl_be_lun *be_lun) 4730{ 4731 struct ctl_softc *ctl_softc; 4732 struct ctl_port *port; 4733 struct ctl_lun *lun; 4734 int retval; 4735 4736 ctl_softc = control_softc; 4737 4738 lun = (struct ctl_lun *)be_lun->ctl_lun; 4739 4740 mtx_lock(&ctl_softc->ctl_lock); 4741 mtx_lock(&lun->lun_lock); 4742 if (lun->flags & CTL_LUN_DISABLED) { 4743 mtx_unlock(&lun->lun_lock); 4744 mtx_unlock(&ctl_softc->ctl_lock); 4745 return (0); 4746 } 4747 lun->flags |= CTL_LUN_DISABLED; 4748 mtx_unlock(&lun->lun_lock); 4749 4750 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4751 mtx_unlock(&ctl_softc->ctl_lock); 4752 /* 4753 * Drop the lock before we call the frontend's disable 4754 * routine, to avoid lock order reversals. 4755 * 4756 * XXX KDM what happens if the frontend list changes while 4757 * we're traversing it? It's unlikely, but should be handled. 4758 */ 4759 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4760 lun->lun); 4761 mtx_lock(&ctl_softc->ctl_lock); 4762 if (retval != 0) { 4763 printf("ctl_alloc_lun: FETD %s port %d returned error " 4764 "%d for lun_disable on target %ju lun %jd\n", 4765 port->port_name, port->targ_port, retval, 4766 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4767 } 4768 } 4769 4770 mtx_unlock(&ctl_softc->ctl_lock); 4771 4772 return (0); 4773} 4774 4775int 4776ctl_start_lun(struct ctl_be_lun *be_lun) 4777{ 4778 struct ctl_softc *ctl_softc; 4779 struct ctl_lun *lun; 4780 4781 ctl_softc = control_softc; 4782 4783 lun = (struct ctl_lun *)be_lun->ctl_lun; 4784 4785 mtx_lock(&lun->lun_lock); 4786 lun->flags &= ~CTL_LUN_STOPPED; 4787 mtx_unlock(&lun->lun_lock); 4788 4789 return (0); 4790} 4791 4792int 4793ctl_stop_lun(struct ctl_be_lun *be_lun) 4794{ 4795 struct ctl_softc *ctl_softc; 4796 struct ctl_lun *lun; 4797 4798 ctl_softc = control_softc; 4799 4800 lun = (struct ctl_lun *)be_lun->ctl_lun; 4801 4802 mtx_lock(&lun->lun_lock); 4803 lun->flags |= CTL_LUN_STOPPED; 4804 mtx_unlock(&lun->lun_lock); 4805 4806 return (0); 4807} 4808 4809int 4810ctl_lun_offline(struct ctl_be_lun *be_lun) 4811{ 4812 struct ctl_softc *ctl_softc; 4813 struct ctl_lun *lun; 4814 4815 ctl_softc = control_softc; 4816 4817 lun = (struct ctl_lun *)be_lun->ctl_lun; 4818 4819 mtx_lock(&lun->lun_lock); 4820 lun->flags |= CTL_LUN_OFFLINE; 4821 mtx_unlock(&lun->lun_lock); 4822 4823 return (0); 4824} 4825 4826int 4827ctl_lun_online(struct ctl_be_lun *be_lun) 4828{ 4829 struct ctl_softc *ctl_softc; 4830 struct ctl_lun *lun; 4831 4832 ctl_softc = control_softc; 4833 4834 lun = (struct ctl_lun *)be_lun->ctl_lun; 4835 4836 mtx_lock(&lun->lun_lock); 4837 lun->flags &= ~CTL_LUN_OFFLINE; 4838 mtx_unlock(&lun->lun_lock); 4839 4840 return (0); 4841} 4842 4843int 4844ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4845{ 4846 struct ctl_softc *ctl_softc; 4847 struct ctl_lun *lun; 4848 4849 ctl_softc = control_softc; 4850 4851 lun = (struct ctl_lun *)be_lun->ctl_lun; 4852 4853 mtx_lock(&lun->lun_lock); 4854 4855 /* 4856 * The LUN needs to be disabled before it can be marked invalid. 4857 */ 4858 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4859 mtx_unlock(&lun->lun_lock); 4860 return (-1); 4861 } 4862 /* 4863 * Mark the LUN invalid. 4864 */ 4865 lun->flags |= CTL_LUN_INVALID; 4866 4867 /* 4868 * If there is nothing in the OOA queue, go ahead and free the LUN. 4869 * If we have something in the OOA queue, we'll free it when the 4870 * last I/O completes. 4871 */ 4872 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4873 mtx_unlock(&lun->lun_lock); 4874 mtx_lock(&ctl_softc->ctl_lock); 4875 ctl_free_lun(lun); 4876 mtx_unlock(&ctl_softc->ctl_lock); 4877 } else 4878 mtx_unlock(&lun->lun_lock); 4879 4880 return (0); 4881} 4882 4883int 4884ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4885{ 4886 struct ctl_softc *ctl_softc; 4887 struct ctl_lun *lun; 4888 4889 ctl_softc = control_softc; 4890 lun = (struct ctl_lun *)be_lun->ctl_lun; 4891 4892 mtx_lock(&lun->lun_lock); 4893 lun->flags |= CTL_LUN_INOPERABLE; 4894 mtx_unlock(&lun->lun_lock); 4895 4896 return (0); 4897} 4898 4899int 4900ctl_lun_operable(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_softc *ctl_softc; 4903 struct ctl_lun *lun; 4904 4905 ctl_softc = control_softc; 4906 lun = (struct ctl_lun *)be_lun->ctl_lun; 4907 4908 mtx_lock(&lun->lun_lock); 4909 lun->flags &= ~CTL_LUN_INOPERABLE; 4910 mtx_unlock(&lun->lun_lock); 4911 4912 return (0); 4913} 4914 4915int 4916ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 4917 int lock) 4918{ 4919 struct ctl_softc *softc; 4920 struct ctl_lun *lun; 4921 struct copan_aps_subpage *current_sp; 4922 struct ctl_page_index *page_index; 4923 int i; 4924 4925 softc = control_softc; 4926 4927 mtx_lock(&softc->ctl_lock); 4928 4929 lun = (struct ctl_lun *)be_lun->ctl_lun; 4930 mtx_lock(&lun->lun_lock); 4931 4932 page_index = NULL; 4933 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4934 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 4935 APS_PAGE_CODE) 4936 continue; 4937 4938 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 4939 continue; 4940 page_index = &lun->mode_pages.index[i]; 4941 } 4942 4943 if (page_index == NULL) { 4944 mtx_unlock(&lun->lun_lock); 4945 mtx_unlock(&softc->ctl_lock); 4946 printf("%s: APS subpage not found for lun %ju!\n", __func__, 4947 (uintmax_t)lun->lun); 4948 return (1); 4949 } 4950#if 0 4951 if ((softc->aps_locked_lun != 0) 4952 && (softc->aps_locked_lun != lun->lun)) { 4953 printf("%s: attempt to lock LUN %llu when %llu is already " 4954 "locked\n"); 4955 mtx_unlock(&lun->lun_lock); 4956 mtx_unlock(&softc->ctl_lock); 4957 return (1); 4958 } 4959#endif 4960 4961 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 4962 (page_index->page_len * CTL_PAGE_CURRENT)); 4963 4964 if (lock != 0) { 4965 current_sp->lock_active = APS_LOCK_ACTIVE; 4966 softc->aps_locked_lun = lun->lun; 4967 } else { 4968 current_sp->lock_active = 0; 4969 softc->aps_locked_lun = 0; 4970 } 4971 4972 4973 /* 4974 * If we're in HA mode, try to send the lock message to the other 4975 * side. 4976 */ 4977 if (ctl_is_single == 0) { 4978 int isc_retval; 4979 union ctl_ha_msg lock_msg; 4980 4981 lock_msg.hdr.nexus = *nexus; 4982 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 4983 if (lock != 0) 4984 lock_msg.aps.lock_flag = 1; 4985 else 4986 lock_msg.aps.lock_flag = 0; 4987 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 4988 sizeof(lock_msg), 0); 4989 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 4990 printf("%s: APS (lock=%d) error returned from " 4991 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 4992 mtx_unlock(&lun->lun_lock); 4993 mtx_unlock(&softc->ctl_lock); 4994 return (1); 4995 } 4996 } 4997 4998 mtx_unlock(&lun->lun_lock); 4999 mtx_unlock(&softc->ctl_lock); 5000 5001 return (0); 5002} 5003 5004void 5005ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5006{ 5007 struct ctl_lun *lun; 5008 struct ctl_softc *softc; 5009 int i; 5010 5011 softc = control_softc; 5012 5013 lun = (struct ctl_lun *)be_lun->ctl_lun; 5014 5015 mtx_lock(&lun->lun_lock); 5016 5017 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5018 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 5019 5020 mtx_unlock(&lun->lun_lock); 5021} 5022 5023/* 5024 * Backend "memory move is complete" callback for requests that never 5025 * make it down to say RAIDCore's configuration code. 5026 */ 5027int 5028ctl_config_move_done(union ctl_io *io) 5029{ 5030 int retval; 5031 5032 retval = CTL_RETVAL_COMPLETE; 5033 5034 5035 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5036 /* 5037 * XXX KDM this shouldn't happen, but what if it does? 5038 */ 5039 if (io->io_hdr.io_type != CTL_IO_SCSI) 5040 panic("I/O type isn't CTL_IO_SCSI!"); 5041 5042 if ((io->io_hdr.port_status == 0) 5043 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5044 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5045 io->io_hdr.status = CTL_SUCCESS; 5046 else if ((io->io_hdr.port_status != 0) 5047 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5048 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5049 /* 5050 * For hardware error sense keys, the sense key 5051 * specific value is defined to be a retry count, 5052 * but we use it to pass back an internal FETD 5053 * error code. XXX KDM Hopefully the FETD is only 5054 * using 16 bits for an error code, since that's 5055 * all the space we have in the sks field. 5056 */ 5057 ctl_set_internal_failure(&io->scsiio, 5058 /*sks_valid*/ 1, 5059 /*retry_count*/ 5060 io->io_hdr.port_status); 5061 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5062 free(io->scsiio.kern_data_ptr, M_CTL); 5063 ctl_done(io); 5064 goto bailout; 5065 } 5066 5067 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5068 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5069 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5070 /* 5071 * XXX KDM just assuming a single pointer here, and not a 5072 * S/G list. If we start using S/G lists for config data, 5073 * we'll need to know how to clean them up here as well. 5074 */ 5075 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5076 free(io->scsiio.kern_data_ptr, M_CTL); 5077 /* Hopefully the user has already set the status... */ 5078 ctl_done(io); 5079 } else { 5080 /* 5081 * XXX KDM now we need to continue data movement. Some 5082 * options: 5083 * - call ctl_scsiio() again? We don't do this for data 5084 * writes, because for those at least we know ahead of 5085 * time where the write will go and how long it is. For 5086 * config writes, though, that information is largely 5087 * contained within the write itself, thus we need to 5088 * parse out the data again. 5089 * 5090 * - Call some other function once the data is in? 5091 */ 5092 5093 /* 5094 * XXX KDM call ctl_scsiio() again for now, and check flag 5095 * bits to see whether we're allocated or not. 5096 */ 5097 retval = ctl_scsiio(&io->scsiio); 5098 } 5099bailout: 5100 return (retval); 5101} 5102 5103/* 5104 * This gets called by a backend driver when it is done with a 5105 * data_submit method. 5106 */ 5107void 5108ctl_data_submit_done(union ctl_io *io) 5109{ 5110 /* 5111 * If the IO_CONT flag is set, we need to call the supplied 5112 * function to continue processing the I/O, instead of completing 5113 * the I/O just yet. 5114 * 5115 * If there is an error, though, we don't want to keep processing. 5116 * Instead, just send status back to the initiator. 5117 */ 5118 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5119 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5120 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5121 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5122 io->scsiio.io_cont(io); 5123 return; 5124 } 5125 ctl_done(io); 5126} 5127 5128/* 5129 * This gets called by a backend driver when it is done with a 5130 * configuration write. 5131 */ 5132void 5133ctl_config_write_done(union ctl_io *io) 5134{ 5135 /* 5136 * If the IO_CONT flag is set, we need to call the supplied 5137 * function to continue processing the I/O, instead of completing 5138 * the I/O just yet. 5139 * 5140 * If there is an error, though, we don't want to keep processing. 5141 * Instead, just send status back to the initiator. 5142 */ 5143 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5144 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5145 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5146 io->scsiio.io_cont(io); 5147 return; 5148 } 5149 /* 5150 * Since a configuration write can be done for commands that actually 5151 * have data allocated, like write buffer, and commands that have 5152 * no data, like start/stop unit, we need to check here. 5153 */ 5154 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5155 free(io->scsiio.kern_data_ptr, M_CTL); 5156 ctl_done(io); 5157} 5158 5159/* 5160 * SCSI release command. 5161 */ 5162int 5163ctl_scsi_release(struct ctl_scsiio *ctsio) 5164{ 5165 int length, longid, thirdparty_id, resv_id; 5166 struct ctl_softc *ctl_softc; 5167 struct ctl_lun *lun; 5168 5169 length = 0; 5170 resv_id = 0; 5171 5172 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5173 5174 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5175 ctl_softc = control_softc; 5176 5177 switch (ctsio->cdb[0]) { 5178 case RELEASE_10: { 5179 struct scsi_release_10 *cdb; 5180 5181 cdb = (struct scsi_release_10 *)ctsio->cdb; 5182 5183 if (cdb->byte2 & SR10_LONGID) 5184 longid = 1; 5185 else 5186 thirdparty_id = cdb->thirdparty_id; 5187 5188 resv_id = cdb->resv_id; 5189 length = scsi_2btoul(cdb->length); 5190 break; 5191 } 5192 } 5193 5194 5195 /* 5196 * XXX KDM right now, we only support LUN reservation. We don't 5197 * support 3rd party reservations, or extent reservations, which 5198 * might actually need the parameter list. If we've gotten this 5199 * far, we've got a LUN reservation. Anything else got kicked out 5200 * above. So, according to SPC, ignore the length. 5201 */ 5202 length = 0; 5203 5204 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5205 && (length > 0)) { 5206 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5207 ctsio->kern_data_len = length; 5208 ctsio->kern_total_len = length; 5209 ctsio->kern_data_resid = 0; 5210 ctsio->kern_rel_offset = 0; 5211 ctsio->kern_sg_entries = 0; 5212 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5213 ctsio->be_move_done = ctl_config_move_done; 5214 ctl_datamove((union ctl_io *)ctsio); 5215 5216 return (CTL_RETVAL_COMPLETE); 5217 } 5218 5219 if (length > 0) 5220 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5221 5222 mtx_lock(&lun->lun_lock); 5223 5224 /* 5225 * According to SPC, it is not an error for an intiator to attempt 5226 * to release a reservation on a LUN that isn't reserved, or that 5227 * is reserved by another initiator. The reservation can only be 5228 * released, though, by the initiator who made it or by one of 5229 * several reset type events. 5230 */ 5231 if (lun->flags & CTL_LUN_RESERVED) { 5232 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5233 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5234 && (ctsio->io_hdr.nexus.targ_target.id == 5235 lun->rsv_nexus.targ_target.id)) { 5236 lun->flags &= ~CTL_LUN_RESERVED; 5237 } 5238 } 5239 5240 mtx_unlock(&lun->lun_lock); 5241 5242 ctsio->scsi_status = SCSI_STATUS_OK; 5243 ctsio->io_hdr.status = CTL_SUCCESS; 5244 5245 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5246 free(ctsio->kern_data_ptr, M_CTL); 5247 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5248 } 5249 5250 ctl_done((union ctl_io *)ctsio); 5251 return (CTL_RETVAL_COMPLETE); 5252} 5253 5254int 5255ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5256{ 5257 int extent, thirdparty, longid; 5258 int resv_id, length; 5259 uint64_t thirdparty_id; 5260 struct ctl_softc *ctl_softc; 5261 struct ctl_lun *lun; 5262 5263 extent = 0; 5264 thirdparty = 0; 5265 longid = 0; 5266 resv_id = 0; 5267 length = 0; 5268 thirdparty_id = 0; 5269 5270 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5271 5272 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5273 ctl_softc = control_softc; 5274 5275 switch (ctsio->cdb[0]) { 5276 case RESERVE_10: { 5277 struct scsi_reserve_10 *cdb; 5278 5279 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5280 5281 if (cdb->byte2 & SR10_LONGID) 5282 longid = 1; 5283 else 5284 thirdparty_id = cdb->thirdparty_id; 5285 5286 resv_id = cdb->resv_id; 5287 length = scsi_2btoul(cdb->length); 5288 break; 5289 } 5290 } 5291 5292 /* 5293 * XXX KDM right now, we only support LUN reservation. We don't 5294 * support 3rd party reservations, or extent reservations, which 5295 * might actually need the parameter list. If we've gotten this 5296 * far, we've got a LUN reservation. Anything else got kicked out 5297 * above. So, according to SPC, ignore the length. 5298 */ 5299 length = 0; 5300 5301 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5302 && (length > 0)) { 5303 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5304 ctsio->kern_data_len = length; 5305 ctsio->kern_total_len = length; 5306 ctsio->kern_data_resid = 0; 5307 ctsio->kern_rel_offset = 0; 5308 ctsio->kern_sg_entries = 0; 5309 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5310 ctsio->be_move_done = ctl_config_move_done; 5311 ctl_datamove((union ctl_io *)ctsio); 5312 5313 return (CTL_RETVAL_COMPLETE); 5314 } 5315 5316 if (length > 0) 5317 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5318 5319 mtx_lock(&lun->lun_lock); 5320 if (lun->flags & CTL_LUN_RESERVED) { 5321 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5322 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5323 || (ctsio->io_hdr.nexus.targ_target.id != 5324 lun->rsv_nexus.targ_target.id)) { 5325 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5326 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5327 goto bailout; 5328 } 5329 } 5330 5331 lun->flags |= CTL_LUN_RESERVED; 5332 lun->rsv_nexus = ctsio->io_hdr.nexus; 5333 5334 ctsio->scsi_status = SCSI_STATUS_OK; 5335 ctsio->io_hdr.status = CTL_SUCCESS; 5336 5337bailout: 5338 mtx_unlock(&lun->lun_lock); 5339 5340 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5341 free(ctsio->kern_data_ptr, M_CTL); 5342 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5343 } 5344 5345 ctl_done((union ctl_io *)ctsio); 5346 return (CTL_RETVAL_COMPLETE); 5347} 5348 5349int 5350ctl_start_stop(struct ctl_scsiio *ctsio) 5351{ 5352 struct scsi_start_stop_unit *cdb; 5353 struct ctl_lun *lun; 5354 struct ctl_softc *ctl_softc; 5355 int retval; 5356 5357 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5358 5359 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5360 ctl_softc = control_softc; 5361 retval = 0; 5362 5363 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5364 5365 /* 5366 * XXX KDM 5367 * We don't support the immediate bit on a stop unit. In order to 5368 * do that, we would need to code up a way to know that a stop is 5369 * pending, and hold off any new commands until it completes, one 5370 * way or another. Then we could accept or reject those commands 5371 * depending on its status. We would almost need to do the reverse 5372 * of what we do below for an immediate start -- return the copy of 5373 * the ctl_io to the FETD with status to send to the host (and to 5374 * free the copy!) and then free the original I/O once the stop 5375 * actually completes. That way, the OOA queue mechanism can work 5376 * to block commands that shouldn't proceed. Another alternative 5377 * would be to put the copy in the queue in place of the original, 5378 * and return the original back to the caller. That could be 5379 * slightly safer.. 5380 */ 5381 if ((cdb->byte2 & SSS_IMMED) 5382 && ((cdb->how & SSS_START) == 0)) { 5383 ctl_set_invalid_field(ctsio, 5384 /*sks_valid*/ 1, 5385 /*command*/ 1, 5386 /*field*/ 1, 5387 /*bit_valid*/ 1, 5388 /*bit*/ 0); 5389 ctl_done((union ctl_io *)ctsio); 5390 return (CTL_RETVAL_COMPLETE); 5391 } 5392 5393 if ((lun->flags & CTL_LUN_PR_RESERVED) 5394 && ((cdb->how & SSS_START)==0)) { 5395 uint32_t residx; 5396 5397 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5398 if (!lun->per_res[residx].registered 5399 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5400 5401 ctl_set_reservation_conflict(ctsio); 5402 ctl_done((union ctl_io *)ctsio); 5403 return (CTL_RETVAL_COMPLETE); 5404 } 5405 } 5406 5407 /* 5408 * If there is no backend on this device, we can't start or stop 5409 * it. In theory we shouldn't get any start/stop commands in the 5410 * first place at this level if the LUN doesn't have a backend. 5411 * That should get stopped by the command decode code. 5412 */ 5413 if (lun->backend == NULL) { 5414 ctl_set_invalid_opcode(ctsio); 5415 ctl_done((union ctl_io *)ctsio); 5416 return (CTL_RETVAL_COMPLETE); 5417 } 5418 5419 /* 5420 * XXX KDM Copan-specific offline behavior. 5421 * Figure out a reasonable way to port this? 5422 */ 5423#ifdef NEEDTOPORT 5424 mtx_lock(&lun->lun_lock); 5425 5426 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5427 && (lun->flags & CTL_LUN_OFFLINE)) { 5428 /* 5429 * If the LUN is offline, and the on/offline bit isn't set, 5430 * reject the start or stop. Otherwise, let it through. 5431 */ 5432 mtx_unlock(&lun->lun_lock); 5433 ctl_set_lun_not_ready(ctsio); 5434 ctl_done((union ctl_io *)ctsio); 5435 } else { 5436 mtx_unlock(&lun->lun_lock); 5437#endif /* NEEDTOPORT */ 5438 /* 5439 * This could be a start or a stop when we're online, 5440 * or a stop/offline or start/online. A start or stop when 5441 * we're offline is covered in the case above. 5442 */ 5443 /* 5444 * In the non-immediate case, we send the request to 5445 * the backend and return status to the user when 5446 * it is done. 5447 * 5448 * In the immediate case, we allocate a new ctl_io 5449 * to hold a copy of the request, and send that to 5450 * the backend. We then set good status on the 5451 * user's request and return it immediately. 5452 */ 5453 if (cdb->byte2 & SSS_IMMED) { 5454 union ctl_io *new_io; 5455 5456 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5457 if (new_io == NULL) { 5458 ctl_set_busy(ctsio); 5459 ctl_done((union ctl_io *)ctsio); 5460 } else { 5461 ctl_copy_io((union ctl_io *)ctsio, 5462 new_io); 5463 retval = lun->backend->config_write(new_io); 5464 ctl_set_success(ctsio); 5465 ctl_done((union ctl_io *)ctsio); 5466 } 5467 } else { 5468 retval = lun->backend->config_write( 5469 (union ctl_io *)ctsio); 5470 } 5471#ifdef NEEDTOPORT 5472 } 5473#endif 5474 return (retval); 5475} 5476 5477/* 5478 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5479 * we don't really do anything with the LBA and length fields if the user 5480 * passes them in. Instead we'll just flush out the cache for the entire 5481 * LUN. 5482 */ 5483int 5484ctl_sync_cache(struct ctl_scsiio *ctsio) 5485{ 5486 struct ctl_lun *lun; 5487 struct ctl_softc *ctl_softc; 5488 uint64_t starting_lba; 5489 uint32_t block_count; 5490 int retval; 5491 5492 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5493 5494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5495 ctl_softc = control_softc; 5496 retval = 0; 5497 5498 switch (ctsio->cdb[0]) { 5499 case SYNCHRONIZE_CACHE: { 5500 struct scsi_sync_cache *cdb; 5501 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5502 5503 starting_lba = scsi_4btoul(cdb->begin_lba); 5504 block_count = scsi_2btoul(cdb->lb_count); 5505 break; 5506 } 5507 case SYNCHRONIZE_CACHE_16: { 5508 struct scsi_sync_cache_16 *cdb; 5509 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5510 5511 starting_lba = scsi_8btou64(cdb->begin_lba); 5512 block_count = scsi_4btoul(cdb->lb_count); 5513 break; 5514 } 5515 default: 5516 ctl_set_invalid_opcode(ctsio); 5517 ctl_done((union ctl_io *)ctsio); 5518 goto bailout; 5519 break; /* NOTREACHED */ 5520 } 5521 5522 /* 5523 * We check the LBA and length, but don't do anything with them. 5524 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5525 * get flushed. This check will just help satisfy anyone who wants 5526 * to see an error for an out of range LBA. 5527 */ 5528 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5529 ctl_set_lba_out_of_range(ctsio); 5530 ctl_done((union ctl_io *)ctsio); 5531 goto bailout; 5532 } 5533 5534 /* 5535 * If this LUN has no backend, we can't flush the cache anyway. 5536 */ 5537 if (lun->backend == NULL) { 5538 ctl_set_invalid_opcode(ctsio); 5539 ctl_done((union ctl_io *)ctsio); 5540 goto bailout; 5541 } 5542 5543 /* 5544 * Check to see whether we're configured to send the SYNCHRONIZE 5545 * CACHE command directly to the back end. 5546 */ 5547 mtx_lock(&lun->lun_lock); 5548 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5549 && (++(lun->sync_count) >= lun->sync_interval)) { 5550 lun->sync_count = 0; 5551 mtx_unlock(&lun->lun_lock); 5552 retval = lun->backend->config_write((union ctl_io *)ctsio); 5553 } else { 5554 mtx_unlock(&lun->lun_lock); 5555 ctl_set_success(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 } 5558 5559bailout: 5560 5561 return (retval); 5562} 5563 5564int 5565ctl_format(struct ctl_scsiio *ctsio) 5566{ 5567 struct scsi_format *cdb; 5568 struct ctl_lun *lun; 5569 struct ctl_softc *ctl_softc; 5570 int length, defect_list_len; 5571 5572 CTL_DEBUG_PRINT(("ctl_format\n")); 5573 5574 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5575 ctl_softc = control_softc; 5576 5577 cdb = (struct scsi_format *)ctsio->cdb; 5578 5579 length = 0; 5580 if (cdb->byte2 & SF_FMTDATA) { 5581 if (cdb->byte2 & SF_LONGLIST) 5582 length = sizeof(struct scsi_format_header_long); 5583 else 5584 length = sizeof(struct scsi_format_header_short); 5585 } 5586 5587 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5588 && (length > 0)) { 5589 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5590 ctsio->kern_data_len = length; 5591 ctsio->kern_total_len = length; 5592 ctsio->kern_data_resid = 0; 5593 ctsio->kern_rel_offset = 0; 5594 ctsio->kern_sg_entries = 0; 5595 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5596 ctsio->be_move_done = ctl_config_move_done; 5597 ctl_datamove((union ctl_io *)ctsio); 5598 5599 return (CTL_RETVAL_COMPLETE); 5600 } 5601 5602 defect_list_len = 0; 5603 5604 if (cdb->byte2 & SF_FMTDATA) { 5605 if (cdb->byte2 & SF_LONGLIST) { 5606 struct scsi_format_header_long *header; 5607 5608 header = (struct scsi_format_header_long *) 5609 ctsio->kern_data_ptr; 5610 5611 defect_list_len = scsi_4btoul(header->defect_list_len); 5612 if (defect_list_len != 0) { 5613 ctl_set_invalid_field(ctsio, 5614 /*sks_valid*/ 1, 5615 /*command*/ 0, 5616 /*field*/ 2, 5617 /*bit_valid*/ 0, 5618 /*bit*/ 0); 5619 goto bailout; 5620 } 5621 } else { 5622 struct scsi_format_header_short *header; 5623 5624 header = (struct scsi_format_header_short *) 5625 ctsio->kern_data_ptr; 5626 5627 defect_list_len = scsi_2btoul(header->defect_list_len); 5628 if (defect_list_len != 0) { 5629 ctl_set_invalid_field(ctsio, 5630 /*sks_valid*/ 1, 5631 /*command*/ 0, 5632 /*field*/ 2, 5633 /*bit_valid*/ 0, 5634 /*bit*/ 0); 5635 goto bailout; 5636 } 5637 } 5638 } 5639 5640 /* 5641 * The format command will clear out the "Medium format corrupted" 5642 * status if set by the configuration code. That status is really 5643 * just a way to notify the host that we have lost the media, and 5644 * get them to issue a command that will basically make them think 5645 * they're blowing away the media. 5646 */ 5647 mtx_lock(&lun->lun_lock); 5648 lun->flags &= ~CTL_LUN_INOPERABLE; 5649 mtx_unlock(&lun->lun_lock); 5650 5651 ctsio->scsi_status = SCSI_STATUS_OK; 5652 ctsio->io_hdr.status = CTL_SUCCESS; 5653bailout: 5654 5655 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5656 free(ctsio->kern_data_ptr, M_CTL); 5657 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5658 } 5659 5660 ctl_done((union ctl_io *)ctsio); 5661 return (CTL_RETVAL_COMPLETE); 5662} 5663 5664int 5665ctl_read_buffer(struct ctl_scsiio *ctsio) 5666{ 5667 struct scsi_read_buffer *cdb; 5668 struct ctl_lun *lun; 5669 int buffer_offset, len; 5670 static uint8_t descr[4]; 5671 static uint8_t echo_descr[4] = { 0 }; 5672 5673 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5674 5675 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5676 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5677 5678 if (lun->flags & CTL_LUN_PR_RESERVED) { 5679 uint32_t residx; 5680 5681 /* 5682 * XXX KDM need a lock here. 5683 */ 5684 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5685 if ((lun->res_type == SPR_TYPE_EX_AC 5686 && residx != lun->pr_res_idx) 5687 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5688 || lun->res_type == SPR_TYPE_EX_AC_AR) 5689 && !lun->per_res[residx].registered)) { 5690 ctl_set_reservation_conflict(ctsio); 5691 ctl_done((union ctl_io *)ctsio); 5692 return (CTL_RETVAL_COMPLETE); 5693 } 5694 } 5695 5696 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5697 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5698 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5699 ctl_set_invalid_field(ctsio, 5700 /*sks_valid*/ 1, 5701 /*command*/ 1, 5702 /*field*/ 1, 5703 /*bit_valid*/ 1, 5704 /*bit*/ 4); 5705 ctl_done((union ctl_io *)ctsio); 5706 return (CTL_RETVAL_COMPLETE); 5707 } 5708 5709 len = scsi_3btoul(cdb->length); 5710 buffer_offset = scsi_3btoul(cdb->offset); 5711 5712 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5713 ctl_set_invalid_field(ctsio, 5714 /*sks_valid*/ 1, 5715 /*command*/ 1, 5716 /*field*/ 6, 5717 /*bit_valid*/ 0, 5718 /*bit*/ 0); 5719 ctl_done((union ctl_io *)ctsio); 5720 return (CTL_RETVAL_COMPLETE); 5721 } 5722 5723 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5724 descr[0] = 0; 5725 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5726 ctsio->kern_data_ptr = descr; 5727 len = min(len, sizeof(descr)); 5728 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5729 ctsio->kern_data_ptr = echo_descr; 5730 len = min(len, sizeof(echo_descr)); 5731 } else 5732 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5733 ctsio->kern_data_len = len; 5734 ctsio->kern_total_len = len; 5735 ctsio->kern_data_resid = 0; 5736 ctsio->kern_rel_offset = 0; 5737 ctsio->kern_sg_entries = 0; 5738 ctsio->be_move_done = ctl_config_move_done; 5739 ctl_datamove((union ctl_io *)ctsio); 5740 5741 return (CTL_RETVAL_COMPLETE); 5742} 5743 5744int 5745ctl_write_buffer(struct ctl_scsiio *ctsio) 5746{ 5747 struct scsi_write_buffer *cdb; 5748 struct ctl_lun *lun; 5749 int buffer_offset, len; 5750 5751 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5752 5753 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5754 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5755 5756 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5757 ctl_set_invalid_field(ctsio, 5758 /*sks_valid*/ 1, 5759 /*command*/ 1, 5760 /*field*/ 1, 5761 /*bit_valid*/ 1, 5762 /*bit*/ 4); 5763 ctl_done((union ctl_io *)ctsio); 5764 return (CTL_RETVAL_COMPLETE); 5765 } 5766 5767 len = scsi_3btoul(cdb->length); 5768 buffer_offset = scsi_3btoul(cdb->offset); 5769 5770 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5771 ctl_set_invalid_field(ctsio, 5772 /*sks_valid*/ 1, 5773 /*command*/ 1, 5774 /*field*/ 6, 5775 /*bit_valid*/ 0, 5776 /*bit*/ 0); 5777 ctl_done((union ctl_io *)ctsio); 5778 return (CTL_RETVAL_COMPLETE); 5779 } 5780 5781 /* 5782 * If we've got a kernel request that hasn't been malloced yet, 5783 * malloc it and tell the caller the data buffer is here. 5784 */ 5785 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5786 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5787 ctsio->kern_data_len = len; 5788 ctsio->kern_total_len = len; 5789 ctsio->kern_data_resid = 0; 5790 ctsio->kern_rel_offset = 0; 5791 ctsio->kern_sg_entries = 0; 5792 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5793 ctsio->be_move_done = ctl_config_move_done; 5794 ctl_datamove((union ctl_io *)ctsio); 5795 5796 return (CTL_RETVAL_COMPLETE); 5797 } 5798 5799 ctl_done((union ctl_io *)ctsio); 5800 5801 return (CTL_RETVAL_COMPLETE); 5802} 5803 5804int 5805ctl_write_same(struct ctl_scsiio *ctsio) 5806{ 5807 struct ctl_lun *lun; 5808 struct ctl_lba_len_flags *lbalen; 5809 uint64_t lba; 5810 uint32_t num_blocks; 5811 int len, retval; 5812 uint8_t byte2; 5813 5814 retval = CTL_RETVAL_COMPLETE; 5815 5816 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5817 5818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5819 5820 switch (ctsio->cdb[0]) { 5821 case WRITE_SAME_10: { 5822 struct scsi_write_same_10 *cdb; 5823 5824 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5825 5826 lba = scsi_4btoul(cdb->addr); 5827 num_blocks = scsi_2btoul(cdb->length); 5828 byte2 = cdb->byte2; 5829 break; 5830 } 5831 case WRITE_SAME_16: { 5832 struct scsi_write_same_16 *cdb; 5833 5834 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5835 5836 lba = scsi_8btou64(cdb->addr); 5837 num_blocks = scsi_4btoul(cdb->length); 5838 byte2 = cdb->byte2; 5839 break; 5840 } 5841 default: 5842 /* 5843 * We got a command we don't support. This shouldn't 5844 * happen, commands should be filtered out above us. 5845 */ 5846 ctl_set_invalid_opcode(ctsio); 5847 ctl_done((union ctl_io *)ctsio); 5848 5849 return (CTL_RETVAL_COMPLETE); 5850 break; /* NOTREACHED */ 5851 } 5852 5853 /* 5854 * The first check is to make sure we're in bounds, the second 5855 * check is to catch wrap-around problems. If the lba + num blocks 5856 * is less than the lba, then we've wrapped around and the block 5857 * range is invalid anyway. 5858 */ 5859 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5860 || ((lba + num_blocks) < lba)) { 5861 ctl_set_lba_out_of_range(ctsio); 5862 ctl_done((union ctl_io *)ctsio); 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 /* Zero number of blocks means "to the last logical block" */ 5867 if (num_blocks == 0) { 5868 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5869 ctl_set_invalid_field(ctsio, 5870 /*sks_valid*/ 0, 5871 /*command*/ 1, 5872 /*field*/ 0, 5873 /*bit_valid*/ 0, 5874 /*bit*/ 0); 5875 ctl_done((union ctl_io *)ctsio); 5876 return (CTL_RETVAL_COMPLETE); 5877 } 5878 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5879 } 5880 5881 len = lun->be_lun->blocksize; 5882 5883 /* 5884 * If we've got a kernel request that hasn't been malloced yet, 5885 * malloc it and tell the caller the data buffer is here. 5886 */ 5887 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5888 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5889 ctsio->kern_data_len = len; 5890 ctsio->kern_total_len = len; 5891 ctsio->kern_data_resid = 0; 5892 ctsio->kern_rel_offset = 0; 5893 ctsio->kern_sg_entries = 0; 5894 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5895 ctsio->be_move_done = ctl_config_move_done; 5896 ctl_datamove((union ctl_io *)ctsio); 5897 5898 return (CTL_RETVAL_COMPLETE); 5899 } 5900 5901 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5902 lbalen->lba = lba; 5903 lbalen->len = num_blocks; 5904 lbalen->flags = byte2; 5905 retval = lun->backend->config_write((union ctl_io *)ctsio); 5906 5907 return (retval); 5908} 5909 5910int 5911ctl_unmap(struct ctl_scsiio *ctsio) 5912{ 5913 struct ctl_lun *lun; 5914 struct scsi_unmap *cdb; 5915 struct ctl_ptr_len_flags *ptrlen; 5916 struct scsi_unmap_header *hdr; 5917 struct scsi_unmap_desc *buf, *end; 5918 uint64_t lba; 5919 uint32_t num_blocks; 5920 int len, retval; 5921 uint8_t byte2; 5922 5923 retval = CTL_RETVAL_COMPLETE; 5924 5925 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5926 5927 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5928 cdb = (struct scsi_unmap *)ctsio->cdb; 5929 5930 len = scsi_2btoul(cdb->length); 5931 byte2 = cdb->byte2; 5932 5933 /* 5934 * If we've got a kernel request that hasn't been malloced yet, 5935 * malloc it and tell the caller the data buffer is here. 5936 */ 5937 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5938 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5939 ctsio->kern_data_len = len; 5940 ctsio->kern_total_len = len; 5941 ctsio->kern_data_resid = 0; 5942 ctsio->kern_rel_offset = 0; 5943 ctsio->kern_sg_entries = 0; 5944 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5945 ctsio->be_move_done = ctl_config_move_done; 5946 ctl_datamove((union ctl_io *)ctsio); 5947 5948 return (CTL_RETVAL_COMPLETE); 5949 } 5950 5951 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5952 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5953 if (len < sizeof (*hdr) || 5954 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5955 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5956 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5957 ctl_set_invalid_field(ctsio, 5958 /*sks_valid*/ 0, 5959 /*command*/ 0, 5960 /*field*/ 0, 5961 /*bit_valid*/ 0, 5962 /*bit*/ 0); 5963 ctl_done((union ctl_io *)ctsio); 5964 return (CTL_RETVAL_COMPLETE); 5965 } 5966 len = scsi_2btoul(hdr->desc_length); 5967 buf = (struct scsi_unmap_desc *)(hdr + 1); 5968 end = buf + len / sizeof(*buf); 5969 5970 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5971 ptrlen->ptr = (void *)buf; 5972 ptrlen->len = len; 5973 ptrlen->flags = byte2; 5974 5975 for (; buf < end; buf++) { 5976 lba = scsi_8btou64(buf->lba); 5977 num_blocks = scsi_4btoul(buf->length); 5978 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5979 || ((lba + num_blocks) < lba)) { 5980 ctl_set_lba_out_of_range(ctsio); 5981 ctl_done((union ctl_io *)ctsio); 5982 return (CTL_RETVAL_COMPLETE); 5983 } 5984 } 5985 5986 retval = lun->backend->config_write((union ctl_io *)ctsio); 5987 5988 return (retval); 5989} 5990 5991/* 5992 * Note that this function currently doesn't actually do anything inside 5993 * CTL to enforce things if the DQue bit is turned on. 5994 * 5995 * Also note that this function can't be used in the default case, because 5996 * the DQue bit isn't set in the changeable mask for the control mode page 5997 * anyway. This is just here as an example for how to implement a page 5998 * handler, and a placeholder in case we want to allow the user to turn 5999 * tagged queueing on and off. 6000 * 6001 * The D_SENSE bit handling is functional, however, and will turn 6002 * descriptor sense on and off for a given LUN. 6003 */ 6004int 6005ctl_control_page_handler(struct ctl_scsiio *ctsio, 6006 struct ctl_page_index *page_index, uint8_t *page_ptr) 6007{ 6008 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6009 struct ctl_lun *lun; 6010 struct ctl_softc *softc; 6011 int set_ua; 6012 uint32_t initidx; 6013 6014 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6015 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6016 set_ua = 0; 6017 6018 user_cp = (struct scsi_control_page *)page_ptr; 6019 current_cp = (struct scsi_control_page *) 6020 (page_index->page_data + (page_index->page_len * 6021 CTL_PAGE_CURRENT)); 6022 saved_cp = (struct scsi_control_page *) 6023 (page_index->page_data + (page_index->page_len * 6024 CTL_PAGE_SAVED)); 6025 6026 softc = control_softc; 6027 6028 mtx_lock(&lun->lun_lock); 6029 if (((current_cp->rlec & SCP_DSENSE) == 0) 6030 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6031 /* 6032 * Descriptor sense is currently turned off and the user 6033 * wants to turn it on. 6034 */ 6035 current_cp->rlec |= SCP_DSENSE; 6036 saved_cp->rlec |= SCP_DSENSE; 6037 lun->flags |= CTL_LUN_SENSE_DESC; 6038 set_ua = 1; 6039 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6040 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6041 /* 6042 * Descriptor sense is currently turned on, and the user 6043 * wants to turn it off. 6044 */ 6045 current_cp->rlec &= ~SCP_DSENSE; 6046 saved_cp->rlec &= ~SCP_DSENSE; 6047 lun->flags &= ~CTL_LUN_SENSE_DESC; 6048 set_ua = 1; 6049 } 6050 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6051 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6052#ifdef NEEDTOPORT 6053 csevent_log(CSC_CTL | CSC_SHELF_SW | 6054 CTL_UNTAG_TO_UNTAG, 6055 csevent_LogType_Trace, 6056 csevent_Severity_Information, 6057 csevent_AlertLevel_Green, 6058 csevent_FRU_Firmware, 6059 csevent_FRU_Unknown, 6060 "Received untagged to untagged transition"); 6061#endif /* NEEDTOPORT */ 6062 } else { 6063#ifdef NEEDTOPORT 6064 csevent_log(CSC_CTL | CSC_SHELF_SW | 6065 CTL_UNTAG_TO_TAG, 6066 csevent_LogType_ConfigChange, 6067 csevent_Severity_Information, 6068 csevent_AlertLevel_Green, 6069 csevent_FRU_Firmware, 6070 csevent_FRU_Unknown, 6071 "Received untagged to tagged " 6072 "queueing transition"); 6073#endif /* NEEDTOPORT */ 6074 6075 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6076 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6077 set_ua = 1; 6078 } 6079 } else { 6080 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6081#ifdef NEEDTOPORT 6082 csevent_log(CSC_CTL | CSC_SHELF_SW | 6083 CTL_TAG_TO_UNTAG, 6084 csevent_LogType_ConfigChange, 6085 csevent_Severity_Warning, 6086 csevent_AlertLevel_Yellow, 6087 csevent_FRU_Firmware, 6088 csevent_FRU_Unknown, 6089 "Received tagged queueing to untagged " 6090 "transition"); 6091#endif /* NEEDTOPORT */ 6092 6093 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6094 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6095 set_ua = 1; 6096 } else { 6097#ifdef NEEDTOPORT 6098 csevent_log(CSC_CTL | CSC_SHELF_SW | 6099 CTL_TAG_TO_TAG, 6100 csevent_LogType_Trace, 6101 csevent_Severity_Information, 6102 csevent_AlertLevel_Green, 6103 csevent_FRU_Firmware, 6104 csevent_FRU_Unknown, 6105 "Received tagged queueing to tagged " 6106 "queueing transition"); 6107#endif /* NEEDTOPORT */ 6108 } 6109 } 6110 if (set_ua != 0) { 6111 int i; 6112 /* 6113 * Let other initiators know that the mode 6114 * parameters for this LUN have changed. 6115 */ 6116 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6117 if (i == initidx) 6118 continue; 6119 6120 lun->pending_sense[i].ua_pending |= 6121 CTL_UA_MODE_CHANGE; 6122 } 6123 } 6124 mtx_unlock(&lun->lun_lock); 6125 6126 return (0); 6127} 6128 6129int 6130ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6131 struct ctl_page_index *page_index, uint8_t *page_ptr) 6132{ 6133 return (0); 6134} 6135 6136int 6137ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6138 struct ctl_page_index *page_index, int pc) 6139{ 6140 struct copan_power_subpage *page; 6141 6142 page = (struct copan_power_subpage *)page_index->page_data + 6143 (page_index->page_len * pc); 6144 6145 switch (pc) { 6146 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6147 /* 6148 * We don't update the changable bits for this page. 6149 */ 6150 break; 6151 case SMS_PAGE_CTRL_CURRENT >> 6: 6152 case SMS_PAGE_CTRL_DEFAULT >> 6: 6153 case SMS_PAGE_CTRL_SAVED >> 6: 6154#ifdef NEEDTOPORT 6155 ctl_update_power_subpage(page); 6156#endif 6157 break; 6158 default: 6159#ifdef NEEDTOPORT 6160 EPRINT(0, "Invalid PC %d!!", pc); 6161#endif 6162 break; 6163 } 6164 return (0); 6165} 6166 6167 6168int 6169ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6170 struct ctl_page_index *page_index, uint8_t *page_ptr) 6171{ 6172 struct copan_aps_subpage *user_sp; 6173 struct copan_aps_subpage *current_sp; 6174 union ctl_modepage_info *modepage_info; 6175 struct ctl_softc *softc; 6176 struct ctl_lun *lun; 6177 int retval; 6178 6179 retval = CTL_RETVAL_COMPLETE; 6180 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6181 (page_index->page_len * CTL_PAGE_CURRENT)); 6182 softc = control_softc; 6183 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6184 6185 user_sp = (struct copan_aps_subpage *)page_ptr; 6186 6187 modepage_info = (union ctl_modepage_info *) 6188 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6189 6190 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6191 modepage_info->header.subpage = page_index->subpage; 6192 modepage_info->aps.lock_active = user_sp->lock_active; 6193 6194 mtx_lock(&softc->ctl_lock); 6195 6196 /* 6197 * If there is a request to lock the LUN and another LUN is locked 6198 * this is an error. If the requested LUN is already locked ignore 6199 * the request. If no LUN is locked attempt to lock it. 6200 * if there is a request to unlock the LUN and the LUN is currently 6201 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6202 * if another LUN is locked or no LUN is locked. 6203 */ 6204 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6205 if (softc->aps_locked_lun == lun->lun) { 6206 /* 6207 * This LUN is already locked, so we're done. 6208 */ 6209 retval = CTL_RETVAL_COMPLETE; 6210 } else if (softc->aps_locked_lun == 0) { 6211 /* 6212 * No one has the lock, pass the request to the 6213 * backend. 6214 */ 6215 retval = lun->backend->config_write( 6216 (union ctl_io *)ctsio); 6217 } else { 6218 /* 6219 * Someone else has the lock, throw out the request. 6220 */ 6221 ctl_set_already_locked(ctsio); 6222 free(ctsio->kern_data_ptr, M_CTL); 6223 ctl_done((union ctl_io *)ctsio); 6224 6225 /* 6226 * Set the return value so that ctl_do_mode_select() 6227 * won't try to complete the command. We already 6228 * completed it here. 6229 */ 6230 retval = CTL_RETVAL_ERROR; 6231 } 6232 } else if (softc->aps_locked_lun == lun->lun) { 6233 /* 6234 * This LUN is locked, so pass the unlock request to the 6235 * backend. 6236 */ 6237 retval = lun->backend->config_write((union ctl_io *)ctsio); 6238 } 6239 mtx_unlock(&softc->ctl_lock); 6240 6241 return (retval); 6242} 6243 6244int 6245ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6246 struct ctl_page_index *page_index, 6247 uint8_t *page_ptr) 6248{ 6249 uint8_t *c; 6250 int i; 6251 6252 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6253 ctl_time_io_secs = 6254 (c[0] << 8) | 6255 (c[1] << 0) | 6256 0; 6257 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6258 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6259 printf("page data:"); 6260 for (i=0; i<8; i++) 6261 printf(" %.2x",page_ptr[i]); 6262 printf("\n"); 6263 return (0); 6264} 6265 6266int 6267ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6268 struct ctl_page_index *page_index, 6269 int pc) 6270{ 6271 struct copan_debugconf_subpage *page; 6272 6273 page = (struct copan_debugconf_subpage *)page_index->page_data + 6274 (page_index->page_len * pc); 6275 6276 switch (pc) { 6277 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6278 case SMS_PAGE_CTRL_DEFAULT >> 6: 6279 case SMS_PAGE_CTRL_SAVED >> 6: 6280 /* 6281 * We don't update the changable or default bits for this page. 6282 */ 6283 break; 6284 case SMS_PAGE_CTRL_CURRENT >> 6: 6285 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6286 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6287 break; 6288 default: 6289#ifdef NEEDTOPORT 6290 EPRINT(0, "Invalid PC %d!!", pc); 6291#endif /* NEEDTOPORT */ 6292 break; 6293 } 6294 return (0); 6295} 6296 6297 6298static int 6299ctl_do_mode_select(union ctl_io *io) 6300{ 6301 struct scsi_mode_page_header *page_header; 6302 struct ctl_page_index *page_index; 6303 struct ctl_scsiio *ctsio; 6304 int control_dev, page_len; 6305 int page_len_offset, page_len_size; 6306 union ctl_modepage_info *modepage_info; 6307 struct ctl_lun *lun; 6308 int *len_left, *len_used; 6309 int retval, i; 6310 6311 ctsio = &io->scsiio; 6312 page_index = NULL; 6313 page_len = 0; 6314 retval = CTL_RETVAL_COMPLETE; 6315 6316 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6317 6318 if (lun->be_lun->lun_type != T_DIRECT) 6319 control_dev = 1; 6320 else 6321 control_dev = 0; 6322 6323 modepage_info = (union ctl_modepage_info *) 6324 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6325 len_left = &modepage_info->header.len_left; 6326 len_used = &modepage_info->header.len_used; 6327 6328do_next_page: 6329 6330 page_header = (struct scsi_mode_page_header *) 6331 (ctsio->kern_data_ptr + *len_used); 6332 6333 if (*len_left == 0) { 6334 free(ctsio->kern_data_ptr, M_CTL); 6335 ctl_set_success(ctsio); 6336 ctl_done((union ctl_io *)ctsio); 6337 return (CTL_RETVAL_COMPLETE); 6338 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6339 6340 free(ctsio->kern_data_ptr, M_CTL); 6341 ctl_set_param_len_error(ctsio); 6342 ctl_done((union ctl_io *)ctsio); 6343 return (CTL_RETVAL_COMPLETE); 6344 6345 } else if ((page_header->page_code & SMPH_SPF) 6346 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6347 6348 free(ctsio->kern_data_ptr, M_CTL); 6349 ctl_set_param_len_error(ctsio); 6350 ctl_done((union ctl_io *)ctsio); 6351 return (CTL_RETVAL_COMPLETE); 6352 } 6353 6354 6355 /* 6356 * XXX KDM should we do something with the block descriptor? 6357 */ 6358 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6359 6360 if ((control_dev != 0) 6361 && (lun->mode_pages.index[i].page_flags & 6362 CTL_PAGE_FLAG_DISK_ONLY)) 6363 continue; 6364 6365 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6366 (page_header->page_code & SMPH_PC_MASK)) 6367 continue; 6368 6369 /* 6370 * If neither page has a subpage code, then we've got a 6371 * match. 6372 */ 6373 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6374 && ((page_header->page_code & SMPH_SPF) == 0)) { 6375 page_index = &lun->mode_pages.index[i]; 6376 page_len = page_header->page_length; 6377 break; 6378 } 6379 6380 /* 6381 * If both pages have subpages, then the subpage numbers 6382 * have to match. 6383 */ 6384 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6385 && (page_header->page_code & SMPH_SPF)) { 6386 struct scsi_mode_page_header_sp *sph; 6387 6388 sph = (struct scsi_mode_page_header_sp *)page_header; 6389 6390 if (lun->mode_pages.index[i].subpage == 6391 sph->subpage) { 6392 page_index = &lun->mode_pages.index[i]; 6393 page_len = scsi_2btoul(sph->page_length); 6394 break; 6395 } 6396 } 6397 } 6398 6399 /* 6400 * If we couldn't find the page, or if we don't have a mode select 6401 * handler for it, send back an error to the user. 6402 */ 6403 if ((page_index == NULL) 6404 || (page_index->select_handler == NULL)) { 6405 ctl_set_invalid_field(ctsio, 6406 /*sks_valid*/ 1, 6407 /*command*/ 0, 6408 /*field*/ *len_used, 6409 /*bit_valid*/ 0, 6410 /*bit*/ 0); 6411 free(ctsio->kern_data_ptr, M_CTL); 6412 ctl_done((union ctl_io *)ctsio); 6413 return (CTL_RETVAL_COMPLETE); 6414 } 6415 6416 if (page_index->page_code & SMPH_SPF) { 6417 page_len_offset = 2; 6418 page_len_size = 2; 6419 } else { 6420 page_len_size = 1; 6421 page_len_offset = 1; 6422 } 6423 6424 /* 6425 * If the length the initiator gives us isn't the one we specify in 6426 * the mode page header, or if they didn't specify enough data in 6427 * the CDB to avoid truncating this page, kick out the request. 6428 */ 6429 if ((page_len != (page_index->page_len - page_len_offset - 6430 page_len_size)) 6431 || (*len_left < page_index->page_len)) { 6432 6433 6434 ctl_set_invalid_field(ctsio, 6435 /*sks_valid*/ 1, 6436 /*command*/ 0, 6437 /*field*/ *len_used + page_len_offset, 6438 /*bit_valid*/ 0, 6439 /*bit*/ 0); 6440 free(ctsio->kern_data_ptr, M_CTL); 6441 ctl_done((union ctl_io *)ctsio); 6442 return (CTL_RETVAL_COMPLETE); 6443 } 6444 6445 /* 6446 * Run through the mode page, checking to make sure that the bits 6447 * the user changed are actually legal for him to change. 6448 */ 6449 for (i = 0; i < page_index->page_len; i++) { 6450 uint8_t *user_byte, *change_mask, *current_byte; 6451 int bad_bit; 6452 int j; 6453 6454 user_byte = (uint8_t *)page_header + i; 6455 change_mask = page_index->page_data + 6456 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6457 current_byte = page_index->page_data + 6458 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6459 6460 /* 6461 * Check to see whether the user set any bits in this byte 6462 * that he is not allowed to set. 6463 */ 6464 if ((*user_byte & ~(*change_mask)) == 6465 (*current_byte & ~(*change_mask))) 6466 continue; 6467 6468 /* 6469 * Go through bit by bit to determine which one is illegal. 6470 */ 6471 bad_bit = 0; 6472 for (j = 7; j >= 0; j--) { 6473 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6474 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6475 bad_bit = i; 6476 break; 6477 } 6478 } 6479 ctl_set_invalid_field(ctsio, 6480 /*sks_valid*/ 1, 6481 /*command*/ 0, 6482 /*field*/ *len_used + i, 6483 /*bit_valid*/ 1, 6484 /*bit*/ bad_bit); 6485 free(ctsio->kern_data_ptr, M_CTL); 6486 ctl_done((union ctl_io *)ctsio); 6487 return (CTL_RETVAL_COMPLETE); 6488 } 6489 6490 /* 6491 * Decrement these before we call the page handler, since we may 6492 * end up getting called back one way or another before the handler 6493 * returns to this context. 6494 */ 6495 *len_left -= page_index->page_len; 6496 *len_used += page_index->page_len; 6497 6498 retval = page_index->select_handler(ctsio, page_index, 6499 (uint8_t *)page_header); 6500 6501 /* 6502 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6503 * wait until this queued command completes to finish processing 6504 * the mode page. If it returns anything other than 6505 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6506 * already set the sense information, freed the data pointer, and 6507 * completed the io for us. 6508 */ 6509 if (retval != CTL_RETVAL_COMPLETE) 6510 goto bailout_no_done; 6511 6512 /* 6513 * If the initiator sent us more than one page, parse the next one. 6514 */ 6515 if (*len_left > 0) 6516 goto do_next_page; 6517 6518 ctl_set_success(ctsio); 6519 free(ctsio->kern_data_ptr, M_CTL); 6520 ctl_done((union ctl_io *)ctsio); 6521 6522bailout_no_done: 6523 6524 return (CTL_RETVAL_COMPLETE); 6525 6526} 6527 6528int 6529ctl_mode_select(struct ctl_scsiio *ctsio) 6530{ 6531 int param_len, pf, sp; 6532 int header_size, bd_len; 6533 int len_left, len_used; 6534 struct ctl_page_index *page_index; 6535 struct ctl_lun *lun; 6536 int control_dev, page_len; 6537 union ctl_modepage_info *modepage_info; 6538 int retval; 6539 6540 pf = 0; 6541 sp = 0; 6542 page_len = 0; 6543 len_used = 0; 6544 len_left = 0; 6545 retval = 0; 6546 bd_len = 0; 6547 page_index = NULL; 6548 6549 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6550 6551 if (lun->be_lun->lun_type != T_DIRECT) 6552 control_dev = 1; 6553 else 6554 control_dev = 0; 6555 6556 switch (ctsio->cdb[0]) { 6557 case MODE_SELECT_6: { 6558 struct scsi_mode_select_6 *cdb; 6559 6560 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6561 6562 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6563 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6564 6565 param_len = cdb->length; 6566 header_size = sizeof(struct scsi_mode_header_6); 6567 break; 6568 } 6569 case MODE_SELECT_10: { 6570 struct scsi_mode_select_10 *cdb; 6571 6572 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6573 6574 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6575 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6576 6577 param_len = scsi_2btoul(cdb->length); 6578 header_size = sizeof(struct scsi_mode_header_10); 6579 break; 6580 } 6581 default: 6582 ctl_set_invalid_opcode(ctsio); 6583 ctl_done((union ctl_io *)ctsio); 6584 return (CTL_RETVAL_COMPLETE); 6585 break; /* NOTREACHED */ 6586 } 6587 6588 /* 6589 * From SPC-3: 6590 * "A parameter list length of zero indicates that the Data-Out Buffer 6591 * shall be empty. This condition shall not be considered as an error." 6592 */ 6593 if (param_len == 0) { 6594 ctl_set_success(ctsio); 6595 ctl_done((union ctl_io *)ctsio); 6596 return (CTL_RETVAL_COMPLETE); 6597 } 6598 6599 /* 6600 * Since we'll hit this the first time through, prior to 6601 * allocation, we don't need to free a data buffer here. 6602 */ 6603 if (param_len < header_size) { 6604 ctl_set_param_len_error(ctsio); 6605 ctl_done((union ctl_io *)ctsio); 6606 return (CTL_RETVAL_COMPLETE); 6607 } 6608 6609 /* 6610 * Allocate the data buffer and grab the user's data. In theory, 6611 * we shouldn't have to sanity check the parameter list length here 6612 * because the maximum size is 64K. We should be able to malloc 6613 * that much without too many problems. 6614 */ 6615 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6616 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6617 ctsio->kern_data_len = param_len; 6618 ctsio->kern_total_len = param_len; 6619 ctsio->kern_data_resid = 0; 6620 ctsio->kern_rel_offset = 0; 6621 ctsio->kern_sg_entries = 0; 6622 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6623 ctsio->be_move_done = ctl_config_move_done; 6624 ctl_datamove((union ctl_io *)ctsio); 6625 6626 return (CTL_RETVAL_COMPLETE); 6627 } 6628 6629 switch (ctsio->cdb[0]) { 6630 case MODE_SELECT_6: { 6631 struct scsi_mode_header_6 *mh6; 6632 6633 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6634 bd_len = mh6->blk_desc_len; 6635 break; 6636 } 6637 case MODE_SELECT_10: { 6638 struct scsi_mode_header_10 *mh10; 6639 6640 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6641 bd_len = scsi_2btoul(mh10->blk_desc_len); 6642 break; 6643 } 6644 default: 6645 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6646 break; 6647 } 6648 6649 if (param_len < (header_size + bd_len)) { 6650 free(ctsio->kern_data_ptr, M_CTL); 6651 ctl_set_param_len_error(ctsio); 6652 ctl_done((union ctl_io *)ctsio); 6653 return (CTL_RETVAL_COMPLETE); 6654 } 6655 6656 /* 6657 * Set the IO_CONT flag, so that if this I/O gets passed to 6658 * ctl_config_write_done(), it'll get passed back to 6659 * ctl_do_mode_select() for further processing, or completion if 6660 * we're all done. 6661 */ 6662 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6663 ctsio->io_cont = ctl_do_mode_select; 6664 6665 modepage_info = (union ctl_modepage_info *) 6666 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6667 6668 memset(modepage_info, 0, sizeof(*modepage_info)); 6669 6670 len_left = param_len - header_size - bd_len; 6671 len_used = header_size + bd_len; 6672 6673 modepage_info->header.len_left = len_left; 6674 modepage_info->header.len_used = len_used; 6675 6676 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6677} 6678 6679int 6680ctl_mode_sense(struct ctl_scsiio *ctsio) 6681{ 6682 struct ctl_lun *lun; 6683 int pc, page_code, dbd, llba, subpage; 6684 int alloc_len, page_len, header_len, total_len; 6685 struct scsi_mode_block_descr *block_desc; 6686 struct ctl_page_index *page_index; 6687 int control_dev; 6688 6689 dbd = 0; 6690 llba = 0; 6691 block_desc = NULL; 6692 page_index = NULL; 6693 6694 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6695 6696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6697 6698 if (lun->be_lun->lun_type != T_DIRECT) 6699 control_dev = 1; 6700 else 6701 control_dev = 0; 6702 6703 if (lun->flags & CTL_LUN_PR_RESERVED) { 6704 uint32_t residx; 6705 6706 /* 6707 * XXX KDM need a lock here. 6708 */ 6709 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6710 if ((lun->res_type == SPR_TYPE_EX_AC 6711 && residx != lun->pr_res_idx) 6712 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6713 || lun->res_type == SPR_TYPE_EX_AC_AR) 6714 && !lun->per_res[residx].registered)) { 6715 ctl_set_reservation_conflict(ctsio); 6716 ctl_done((union ctl_io *)ctsio); 6717 return (CTL_RETVAL_COMPLETE); 6718 } 6719 } 6720 6721 switch (ctsio->cdb[0]) { 6722 case MODE_SENSE_6: { 6723 struct scsi_mode_sense_6 *cdb; 6724 6725 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6726 6727 header_len = sizeof(struct scsi_mode_hdr_6); 6728 if (cdb->byte2 & SMS_DBD) 6729 dbd = 1; 6730 else 6731 header_len += sizeof(struct scsi_mode_block_descr); 6732 6733 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6734 page_code = cdb->page & SMS_PAGE_CODE; 6735 subpage = cdb->subpage; 6736 alloc_len = cdb->length; 6737 break; 6738 } 6739 case MODE_SENSE_10: { 6740 struct scsi_mode_sense_10 *cdb; 6741 6742 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6743 6744 header_len = sizeof(struct scsi_mode_hdr_10); 6745 6746 if (cdb->byte2 & SMS_DBD) 6747 dbd = 1; 6748 else 6749 header_len += sizeof(struct scsi_mode_block_descr); 6750 if (cdb->byte2 & SMS10_LLBAA) 6751 llba = 1; 6752 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6753 page_code = cdb->page & SMS_PAGE_CODE; 6754 subpage = cdb->subpage; 6755 alloc_len = scsi_2btoul(cdb->length); 6756 break; 6757 } 6758 default: 6759 ctl_set_invalid_opcode(ctsio); 6760 ctl_done((union ctl_io *)ctsio); 6761 return (CTL_RETVAL_COMPLETE); 6762 break; /* NOTREACHED */ 6763 } 6764 6765 /* 6766 * We have to make a first pass through to calculate the size of 6767 * the pages that match the user's query. Then we allocate enough 6768 * memory to hold it, and actually copy the data into the buffer. 6769 */ 6770 switch (page_code) { 6771 case SMS_ALL_PAGES_PAGE: { 6772 int i; 6773 6774 page_len = 0; 6775 6776 /* 6777 * At the moment, values other than 0 and 0xff here are 6778 * reserved according to SPC-3. 6779 */ 6780 if ((subpage != SMS_SUBPAGE_PAGE_0) 6781 && (subpage != SMS_SUBPAGE_ALL)) { 6782 ctl_set_invalid_field(ctsio, 6783 /*sks_valid*/ 1, 6784 /*command*/ 1, 6785 /*field*/ 3, 6786 /*bit_valid*/ 0, 6787 /*bit*/ 0); 6788 ctl_done((union ctl_io *)ctsio); 6789 return (CTL_RETVAL_COMPLETE); 6790 } 6791 6792 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6793 if ((control_dev != 0) 6794 && (lun->mode_pages.index[i].page_flags & 6795 CTL_PAGE_FLAG_DISK_ONLY)) 6796 continue; 6797 6798 /* 6799 * We don't use this subpage if the user didn't 6800 * request all subpages. 6801 */ 6802 if ((lun->mode_pages.index[i].subpage != 0) 6803 && (subpage == SMS_SUBPAGE_PAGE_0)) 6804 continue; 6805 6806#if 0 6807 printf("found page %#x len %d\n", 6808 lun->mode_pages.index[i].page_code & 6809 SMPH_PC_MASK, 6810 lun->mode_pages.index[i].page_len); 6811#endif 6812 page_len += lun->mode_pages.index[i].page_len; 6813 } 6814 break; 6815 } 6816 default: { 6817 int i; 6818 6819 page_len = 0; 6820 6821 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6822 /* Look for the right page code */ 6823 if ((lun->mode_pages.index[i].page_code & 6824 SMPH_PC_MASK) != page_code) 6825 continue; 6826 6827 /* Look for the right subpage or the subpage wildcard*/ 6828 if ((lun->mode_pages.index[i].subpage != subpage) 6829 && (subpage != SMS_SUBPAGE_ALL)) 6830 continue; 6831 6832 /* Make sure the page is supported for this dev type */ 6833 if ((control_dev != 0) 6834 && (lun->mode_pages.index[i].page_flags & 6835 CTL_PAGE_FLAG_DISK_ONLY)) 6836 continue; 6837 6838#if 0 6839 printf("found page %#x len %d\n", 6840 lun->mode_pages.index[i].page_code & 6841 SMPH_PC_MASK, 6842 lun->mode_pages.index[i].page_len); 6843#endif 6844 6845 page_len += lun->mode_pages.index[i].page_len; 6846 } 6847 6848 if (page_len == 0) { 6849 ctl_set_invalid_field(ctsio, 6850 /*sks_valid*/ 1, 6851 /*command*/ 1, 6852 /*field*/ 2, 6853 /*bit_valid*/ 1, 6854 /*bit*/ 5); 6855 ctl_done((union ctl_io *)ctsio); 6856 return (CTL_RETVAL_COMPLETE); 6857 } 6858 break; 6859 } 6860 } 6861 6862 total_len = header_len + page_len; 6863#if 0 6864 printf("header_len = %d, page_len = %d, total_len = %d\n", 6865 header_len, page_len, total_len); 6866#endif 6867 6868 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6869 ctsio->kern_sg_entries = 0; 6870 ctsio->kern_data_resid = 0; 6871 ctsio->kern_rel_offset = 0; 6872 if (total_len < alloc_len) { 6873 ctsio->residual = alloc_len - total_len; 6874 ctsio->kern_data_len = total_len; 6875 ctsio->kern_total_len = total_len; 6876 } else { 6877 ctsio->residual = 0; 6878 ctsio->kern_data_len = alloc_len; 6879 ctsio->kern_total_len = alloc_len; 6880 } 6881 6882 switch (ctsio->cdb[0]) { 6883 case MODE_SENSE_6: { 6884 struct scsi_mode_hdr_6 *header; 6885 6886 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6887 6888 header->datalen = ctl_min(total_len - 1, 254); 6889 6890 if (dbd) 6891 header->block_descr_len = 0; 6892 else 6893 header->block_descr_len = 6894 sizeof(struct scsi_mode_block_descr); 6895 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6896 break; 6897 } 6898 case MODE_SENSE_10: { 6899 struct scsi_mode_hdr_10 *header; 6900 int datalen; 6901 6902 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6903 6904 datalen = ctl_min(total_len - 2, 65533); 6905 scsi_ulto2b(datalen, header->datalen); 6906 if (dbd) 6907 scsi_ulto2b(0, header->block_descr_len); 6908 else 6909 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6910 header->block_descr_len); 6911 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6912 break; 6913 } 6914 default: 6915 panic("invalid CDB type %#x", ctsio->cdb[0]); 6916 break; /* NOTREACHED */ 6917 } 6918 6919 /* 6920 * If we've got a disk, use its blocksize in the block 6921 * descriptor. Otherwise, just set it to 0. 6922 */ 6923 if (dbd == 0) { 6924 if (control_dev != 0) 6925 scsi_ulto3b(lun->be_lun->blocksize, 6926 block_desc->block_len); 6927 else 6928 scsi_ulto3b(0, block_desc->block_len); 6929 } 6930 6931 switch (page_code) { 6932 case SMS_ALL_PAGES_PAGE: { 6933 int i, data_used; 6934 6935 data_used = header_len; 6936 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6937 struct ctl_page_index *page_index; 6938 6939 page_index = &lun->mode_pages.index[i]; 6940 6941 if ((control_dev != 0) 6942 && (page_index->page_flags & 6943 CTL_PAGE_FLAG_DISK_ONLY)) 6944 continue; 6945 6946 /* 6947 * We don't use this subpage if the user didn't 6948 * request all subpages. We already checked (above) 6949 * to make sure the user only specified a subpage 6950 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6951 */ 6952 if ((page_index->subpage != 0) 6953 && (subpage == SMS_SUBPAGE_PAGE_0)) 6954 continue; 6955 6956 /* 6957 * Call the handler, if it exists, to update the 6958 * page to the latest values. 6959 */ 6960 if (page_index->sense_handler != NULL) 6961 page_index->sense_handler(ctsio, page_index,pc); 6962 6963 memcpy(ctsio->kern_data_ptr + data_used, 6964 page_index->page_data + 6965 (page_index->page_len * pc), 6966 page_index->page_len); 6967 data_used += page_index->page_len; 6968 } 6969 break; 6970 } 6971 default: { 6972 int i, data_used; 6973 6974 data_used = header_len; 6975 6976 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6977 struct ctl_page_index *page_index; 6978 6979 page_index = &lun->mode_pages.index[i]; 6980 6981 /* Look for the right page code */ 6982 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6983 continue; 6984 6985 /* Look for the right subpage or the subpage wildcard*/ 6986 if ((page_index->subpage != subpage) 6987 && (subpage != SMS_SUBPAGE_ALL)) 6988 continue; 6989 6990 /* Make sure the page is supported for this dev type */ 6991 if ((control_dev != 0) 6992 && (page_index->page_flags & 6993 CTL_PAGE_FLAG_DISK_ONLY)) 6994 continue; 6995 6996 /* 6997 * Call the handler, if it exists, to update the 6998 * page to the latest values. 6999 */ 7000 if (page_index->sense_handler != NULL) 7001 page_index->sense_handler(ctsio, page_index,pc); 7002 7003 memcpy(ctsio->kern_data_ptr + data_used, 7004 page_index->page_data + 7005 (page_index->page_len * pc), 7006 page_index->page_len); 7007 data_used += page_index->page_len; 7008 } 7009 break; 7010 } 7011 } 7012 7013 ctsio->scsi_status = SCSI_STATUS_OK; 7014 7015 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7016 ctsio->be_move_done = ctl_config_move_done; 7017 ctl_datamove((union ctl_io *)ctsio); 7018 7019 return (CTL_RETVAL_COMPLETE); 7020} 7021 7022int 7023ctl_read_capacity(struct ctl_scsiio *ctsio) 7024{ 7025 struct scsi_read_capacity *cdb; 7026 struct scsi_read_capacity_data *data; 7027 struct ctl_lun *lun; 7028 uint32_t lba; 7029 7030 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7031 7032 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7033 7034 lba = scsi_4btoul(cdb->addr); 7035 if (((cdb->pmi & SRC_PMI) == 0) 7036 && (lba != 0)) { 7037 ctl_set_invalid_field(/*ctsio*/ ctsio, 7038 /*sks_valid*/ 1, 7039 /*command*/ 1, 7040 /*field*/ 2, 7041 /*bit_valid*/ 0, 7042 /*bit*/ 0); 7043 ctl_done((union ctl_io *)ctsio); 7044 return (CTL_RETVAL_COMPLETE); 7045 } 7046 7047 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7048 7049 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7050 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7051 ctsio->residual = 0; 7052 ctsio->kern_data_len = sizeof(*data); 7053 ctsio->kern_total_len = sizeof(*data); 7054 ctsio->kern_data_resid = 0; 7055 ctsio->kern_rel_offset = 0; 7056 ctsio->kern_sg_entries = 0; 7057 7058 /* 7059 * If the maximum LBA is greater than 0xfffffffe, the user must 7060 * issue a SERVICE ACTION IN (16) command, with the read capacity 7061 * serivce action set. 7062 */ 7063 if (lun->be_lun->maxlba > 0xfffffffe) 7064 scsi_ulto4b(0xffffffff, data->addr); 7065 else 7066 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7067 7068 /* 7069 * XXX KDM this may not be 512 bytes... 7070 */ 7071 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7072 7073 ctsio->scsi_status = SCSI_STATUS_OK; 7074 7075 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7076 ctsio->be_move_done = ctl_config_move_done; 7077 ctl_datamove((union ctl_io *)ctsio); 7078 7079 return (CTL_RETVAL_COMPLETE); 7080} 7081 7082int 7083ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7084{ 7085 struct scsi_read_capacity_16 *cdb; 7086 struct scsi_read_capacity_data_long *data; 7087 struct ctl_lun *lun; 7088 uint64_t lba; 7089 uint32_t alloc_len; 7090 7091 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7092 7093 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7094 7095 alloc_len = scsi_4btoul(cdb->alloc_len); 7096 lba = scsi_8btou64(cdb->addr); 7097 7098 if ((cdb->reladr & SRC16_PMI) 7099 && (lba != 0)) { 7100 ctl_set_invalid_field(/*ctsio*/ ctsio, 7101 /*sks_valid*/ 1, 7102 /*command*/ 1, 7103 /*field*/ 2, 7104 /*bit_valid*/ 0, 7105 /*bit*/ 0); 7106 ctl_done((union ctl_io *)ctsio); 7107 return (CTL_RETVAL_COMPLETE); 7108 } 7109 7110 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7111 7112 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7113 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7114 7115 if (sizeof(*data) < alloc_len) { 7116 ctsio->residual = alloc_len - sizeof(*data); 7117 ctsio->kern_data_len = sizeof(*data); 7118 ctsio->kern_total_len = sizeof(*data); 7119 } else { 7120 ctsio->residual = 0; 7121 ctsio->kern_data_len = alloc_len; 7122 ctsio->kern_total_len = alloc_len; 7123 } 7124 ctsio->kern_data_resid = 0; 7125 ctsio->kern_rel_offset = 0; 7126 ctsio->kern_sg_entries = 0; 7127 7128 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7129 /* XXX KDM this may not be 512 bytes... */ 7130 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7131 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7132 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7133 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7134 data->lalba_lbp[0] |= SRC16_LBPME; 7135 7136 ctsio->scsi_status = SCSI_STATUS_OK; 7137 7138 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7139 ctsio->be_move_done = ctl_config_move_done; 7140 ctl_datamove((union ctl_io *)ctsio); 7141 7142 return (CTL_RETVAL_COMPLETE); 7143} 7144 7145int 7146ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7147{ 7148 struct scsi_maintenance_in *cdb; 7149 int retval; 7150 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7151 int num_target_port_groups, num_target_ports, single; 7152 struct ctl_lun *lun; 7153 struct ctl_softc *softc; 7154 struct ctl_port *port; 7155 struct scsi_target_group_data *rtg_ptr; 7156 struct scsi_target_group_data_extended *rtg_ext_ptr; 7157 struct scsi_target_port_group_descriptor *tpg_desc; 7158 7159 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7160 7161 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7162 softc = control_softc; 7163 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7164 7165 retval = CTL_RETVAL_COMPLETE; 7166 7167 switch (cdb->byte2 & STG_PDF_MASK) { 7168 case STG_PDF_LENGTH: 7169 ext = 0; 7170 break; 7171 case STG_PDF_EXTENDED: 7172 ext = 1; 7173 break; 7174 default: 7175 ctl_set_invalid_field(/*ctsio*/ ctsio, 7176 /*sks_valid*/ 1, 7177 /*command*/ 1, 7178 /*field*/ 2, 7179 /*bit_valid*/ 1, 7180 /*bit*/ 5); 7181 ctl_done((union ctl_io *)ctsio); 7182 return(retval); 7183 } 7184 7185 single = ctl_is_single; 7186 if (single) 7187 num_target_port_groups = 1; 7188 else 7189 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7190 num_target_ports = 0; 7191 mtx_lock(&softc->ctl_lock); 7192 STAILQ_FOREACH(port, &softc->port_list, links) { 7193 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7194 continue; 7195 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7196 continue; 7197 num_target_ports++; 7198 } 7199 mtx_unlock(&softc->ctl_lock); 7200 7201 if (ext) 7202 total_len = sizeof(struct scsi_target_group_data_extended); 7203 else 7204 total_len = sizeof(struct scsi_target_group_data); 7205 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7206 num_target_port_groups + 7207 sizeof(struct scsi_target_port_descriptor) * 7208 num_target_ports * num_target_port_groups; 7209 7210 alloc_len = scsi_4btoul(cdb->length); 7211 7212 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7213 7214 ctsio->kern_sg_entries = 0; 7215 7216 if (total_len < alloc_len) { 7217 ctsio->residual = alloc_len - total_len; 7218 ctsio->kern_data_len = total_len; 7219 ctsio->kern_total_len = total_len; 7220 } else { 7221 ctsio->residual = 0; 7222 ctsio->kern_data_len = alloc_len; 7223 ctsio->kern_total_len = alloc_len; 7224 } 7225 ctsio->kern_data_resid = 0; 7226 ctsio->kern_rel_offset = 0; 7227 7228 if (ext) { 7229 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7230 ctsio->kern_data_ptr; 7231 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7232 rtg_ext_ptr->format_type = 0x10; 7233 rtg_ext_ptr->implicit_transition_time = 0; 7234 tpg_desc = &rtg_ext_ptr->groups[0]; 7235 } else { 7236 rtg_ptr = (struct scsi_target_group_data *) 7237 ctsio->kern_data_ptr; 7238 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7239 tpg_desc = &rtg_ptr->groups[0]; 7240 } 7241 7242 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7243 mtx_lock(&softc->ctl_lock); 7244 for (g = 0; g < num_target_port_groups; g++) { 7245 if (g == pg) 7246 tpg_desc->pref_state = TPG_PRIMARY | 7247 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7248 else 7249 tpg_desc->pref_state = 7250 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7251 tpg_desc->support = TPG_AO_SUP; 7252 if (!single) 7253 tpg_desc->support |= TPG_AN_SUP; 7254 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7255 tpg_desc->status = TPG_IMPLICIT; 7256 pc = 0; 7257 STAILQ_FOREACH(port, &softc->port_list, links) { 7258 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7259 continue; 7260 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7261 CTL_MAX_LUNS) 7262 continue; 7263 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7264 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7265 relative_target_port_identifier); 7266 pc++; 7267 } 7268 tpg_desc->target_port_count = pc; 7269 tpg_desc = (struct scsi_target_port_group_descriptor *) 7270 &tpg_desc->descriptors[pc]; 7271 } 7272 mtx_unlock(&softc->ctl_lock); 7273 7274 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7275 ctsio->be_move_done = ctl_config_move_done; 7276 7277 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7278 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7279 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7280 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7281 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7282 7283 ctl_datamove((union ctl_io *)ctsio); 7284 return(retval); 7285} 7286 7287int 7288ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7289{ 7290 struct ctl_lun *lun; 7291 struct scsi_report_supported_opcodes *cdb; 7292 const struct ctl_cmd_entry *entry, *sentry; 7293 struct scsi_report_supported_opcodes_all *all; 7294 struct scsi_report_supported_opcodes_descr *descr; 7295 struct scsi_report_supported_opcodes_one *one; 7296 int retval; 7297 int alloc_len, total_len; 7298 int opcode, service_action, i, j, num; 7299 7300 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7301 7302 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7303 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7304 7305 retval = CTL_RETVAL_COMPLETE; 7306 7307 opcode = cdb->requested_opcode; 7308 service_action = scsi_2btoul(cdb->requested_service_action); 7309 switch (cdb->options & RSO_OPTIONS_MASK) { 7310 case RSO_OPTIONS_ALL: 7311 num = 0; 7312 for (i = 0; i < 256; i++) { 7313 entry = &ctl_cmd_table[i]; 7314 if (entry->flags & CTL_CMD_FLAG_SA5) { 7315 for (j = 0; j < 32; j++) { 7316 sentry = &((const struct ctl_cmd_entry *) 7317 entry->execute)[j]; 7318 if (ctl_cmd_applicable( 7319 lun->be_lun->lun_type, sentry)) 7320 num++; 7321 } 7322 } else { 7323 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7324 entry)) 7325 num++; 7326 } 7327 } 7328 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7329 num * sizeof(struct scsi_report_supported_opcodes_descr); 7330 break; 7331 case RSO_OPTIONS_OC: 7332 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7333 ctl_set_invalid_field(/*ctsio*/ ctsio, 7334 /*sks_valid*/ 1, 7335 /*command*/ 1, 7336 /*field*/ 2, 7337 /*bit_valid*/ 1, 7338 /*bit*/ 2); 7339 ctl_done((union ctl_io *)ctsio); 7340 return (CTL_RETVAL_COMPLETE); 7341 } 7342 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7343 break; 7344 case RSO_OPTIONS_OC_SA: 7345 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7346 service_action >= 32) { 7347 ctl_set_invalid_field(/*ctsio*/ ctsio, 7348 /*sks_valid*/ 1, 7349 /*command*/ 1, 7350 /*field*/ 2, 7351 /*bit_valid*/ 1, 7352 /*bit*/ 2); 7353 ctl_done((union ctl_io *)ctsio); 7354 return (CTL_RETVAL_COMPLETE); 7355 } 7356 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7357 break; 7358 default: 7359 ctl_set_invalid_field(/*ctsio*/ ctsio, 7360 /*sks_valid*/ 1, 7361 /*command*/ 1, 7362 /*field*/ 2, 7363 /*bit_valid*/ 1, 7364 /*bit*/ 2); 7365 ctl_done((union ctl_io *)ctsio); 7366 return (CTL_RETVAL_COMPLETE); 7367 } 7368 7369 alloc_len = scsi_4btoul(cdb->length); 7370 7371 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7372 7373 ctsio->kern_sg_entries = 0; 7374 7375 if (total_len < alloc_len) { 7376 ctsio->residual = alloc_len - total_len; 7377 ctsio->kern_data_len = total_len; 7378 ctsio->kern_total_len = total_len; 7379 } else { 7380 ctsio->residual = 0; 7381 ctsio->kern_data_len = alloc_len; 7382 ctsio->kern_total_len = alloc_len; 7383 } 7384 ctsio->kern_data_resid = 0; 7385 ctsio->kern_rel_offset = 0; 7386 7387 switch (cdb->options & RSO_OPTIONS_MASK) { 7388 case RSO_OPTIONS_ALL: 7389 all = (struct scsi_report_supported_opcodes_all *) 7390 ctsio->kern_data_ptr; 7391 num = 0; 7392 for (i = 0; i < 256; i++) { 7393 entry = &ctl_cmd_table[i]; 7394 if (entry->flags & CTL_CMD_FLAG_SA5) { 7395 for (j = 0; j < 32; j++) { 7396 sentry = &((const struct ctl_cmd_entry *) 7397 entry->execute)[j]; 7398 if (!ctl_cmd_applicable( 7399 lun->be_lun->lun_type, sentry)) 7400 continue; 7401 descr = &all->descr[num++]; 7402 descr->opcode = i; 7403 scsi_ulto2b(j, descr->service_action); 7404 descr->flags = RSO_SERVACTV; 7405 scsi_ulto2b(sentry->length, 7406 descr->cdb_length); 7407 } 7408 } else { 7409 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7410 entry)) 7411 continue; 7412 descr = &all->descr[num++]; 7413 descr->opcode = i; 7414 scsi_ulto2b(0, descr->service_action); 7415 descr->flags = 0; 7416 scsi_ulto2b(entry->length, descr->cdb_length); 7417 } 7418 } 7419 scsi_ulto4b( 7420 num * sizeof(struct scsi_report_supported_opcodes_descr), 7421 all->length); 7422 break; 7423 case RSO_OPTIONS_OC: 7424 one = (struct scsi_report_supported_opcodes_one *) 7425 ctsio->kern_data_ptr; 7426 entry = &ctl_cmd_table[opcode]; 7427 goto fill_one; 7428 case RSO_OPTIONS_OC_SA: 7429 one = (struct scsi_report_supported_opcodes_one *) 7430 ctsio->kern_data_ptr; 7431 entry = &ctl_cmd_table[opcode]; 7432 entry = &((const struct ctl_cmd_entry *) 7433 entry->execute)[service_action]; 7434fill_one: 7435 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7436 one->support = 3; 7437 scsi_ulto2b(entry->length, one->cdb_length); 7438 one->cdb_usage[0] = opcode; 7439 memcpy(&one->cdb_usage[1], entry->usage, 7440 entry->length - 1); 7441 } else 7442 one->support = 1; 7443 break; 7444 } 7445 7446 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7447 ctsio->be_move_done = ctl_config_move_done; 7448 7449 ctl_datamove((union ctl_io *)ctsio); 7450 return(retval); 7451} 7452 7453int 7454ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7455{ 7456 struct ctl_lun *lun; 7457 struct scsi_report_supported_tmf *cdb; 7458 struct scsi_report_supported_tmf_data *data; 7459 int retval; 7460 int alloc_len, total_len; 7461 7462 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7463 7464 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7465 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7466 7467 retval = CTL_RETVAL_COMPLETE; 7468 7469 total_len = sizeof(struct scsi_report_supported_tmf_data); 7470 alloc_len = scsi_4btoul(cdb->length); 7471 7472 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7473 7474 ctsio->kern_sg_entries = 0; 7475 7476 if (total_len < alloc_len) { 7477 ctsio->residual = alloc_len - total_len; 7478 ctsio->kern_data_len = total_len; 7479 ctsio->kern_total_len = total_len; 7480 } else { 7481 ctsio->residual = 0; 7482 ctsio->kern_data_len = alloc_len; 7483 ctsio->kern_total_len = alloc_len; 7484 } 7485 ctsio->kern_data_resid = 0; 7486 ctsio->kern_rel_offset = 0; 7487 7488 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7489 data->byte1 |= RST_ATS | RST_ATSS | RST_LURS | RST_TRS; 7490 data->byte2 |= RST_ITNRS; 7491 7492 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7493 ctsio->be_move_done = ctl_config_move_done; 7494 7495 ctl_datamove((union ctl_io *)ctsio); 7496 return (retval); 7497} 7498 7499int 7500ctl_report_timestamp(struct ctl_scsiio *ctsio) 7501{ 7502 struct ctl_lun *lun; 7503 struct scsi_report_timestamp *cdb; 7504 struct scsi_report_timestamp_data *data; 7505 struct timeval tv; 7506 int64_t timestamp; 7507 int retval; 7508 int alloc_len, total_len; 7509 7510 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7511 7512 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7513 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7514 7515 retval = CTL_RETVAL_COMPLETE; 7516 7517 total_len = sizeof(struct scsi_report_timestamp_data); 7518 alloc_len = scsi_4btoul(cdb->length); 7519 7520 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7521 7522 ctsio->kern_sg_entries = 0; 7523 7524 if (total_len < alloc_len) { 7525 ctsio->residual = alloc_len - total_len; 7526 ctsio->kern_data_len = total_len; 7527 ctsio->kern_total_len = total_len; 7528 } else { 7529 ctsio->residual = 0; 7530 ctsio->kern_data_len = alloc_len; 7531 ctsio->kern_total_len = alloc_len; 7532 } 7533 ctsio->kern_data_resid = 0; 7534 ctsio->kern_rel_offset = 0; 7535 7536 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7537 scsi_ulto2b(sizeof(*data) - 2, data->length); 7538 data->origin = RTS_ORIG_OUTSIDE; 7539 getmicrotime(&tv); 7540 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7541 scsi_ulto4b(timestamp >> 16, data->timestamp); 7542 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7543 7544 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7545 ctsio->be_move_done = ctl_config_move_done; 7546 7547 ctl_datamove((union ctl_io *)ctsio); 7548 return (retval); 7549} 7550 7551int 7552ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7553{ 7554 struct scsi_per_res_in *cdb; 7555 int alloc_len, total_len = 0; 7556 /* struct scsi_per_res_in_rsrv in_data; */ 7557 struct ctl_lun *lun; 7558 struct ctl_softc *softc; 7559 7560 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7561 7562 softc = control_softc; 7563 7564 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7565 7566 alloc_len = scsi_2btoul(cdb->length); 7567 7568 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7569 7570retry: 7571 mtx_lock(&lun->lun_lock); 7572 switch (cdb->action) { 7573 case SPRI_RK: /* read keys */ 7574 total_len = sizeof(struct scsi_per_res_in_keys) + 7575 lun->pr_key_count * 7576 sizeof(struct scsi_per_res_key); 7577 break; 7578 case SPRI_RR: /* read reservation */ 7579 if (lun->flags & CTL_LUN_PR_RESERVED) 7580 total_len = sizeof(struct scsi_per_res_in_rsrv); 7581 else 7582 total_len = sizeof(struct scsi_per_res_in_header); 7583 break; 7584 case SPRI_RC: /* report capabilities */ 7585 total_len = sizeof(struct scsi_per_res_cap); 7586 break; 7587 default: 7588 panic("Invalid PR type %x", cdb->action); 7589 } 7590 mtx_unlock(&lun->lun_lock); 7591 7592 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7593 7594 if (total_len < alloc_len) { 7595 ctsio->residual = alloc_len - total_len; 7596 ctsio->kern_data_len = total_len; 7597 ctsio->kern_total_len = total_len; 7598 } else { 7599 ctsio->residual = 0; 7600 ctsio->kern_data_len = alloc_len; 7601 ctsio->kern_total_len = alloc_len; 7602 } 7603 7604 ctsio->kern_data_resid = 0; 7605 ctsio->kern_rel_offset = 0; 7606 ctsio->kern_sg_entries = 0; 7607 7608 mtx_lock(&lun->lun_lock); 7609 switch (cdb->action) { 7610 case SPRI_RK: { // read keys 7611 struct scsi_per_res_in_keys *res_keys; 7612 int i, key_count; 7613 7614 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7615 7616 /* 7617 * We had to drop the lock to allocate our buffer, which 7618 * leaves time for someone to come in with another 7619 * persistent reservation. (That is unlikely, though, 7620 * since this should be the only persistent reservation 7621 * command active right now.) 7622 */ 7623 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7624 (lun->pr_key_count * 7625 sizeof(struct scsi_per_res_key)))){ 7626 mtx_unlock(&lun->lun_lock); 7627 free(ctsio->kern_data_ptr, M_CTL); 7628 printf("%s: reservation length changed, retrying\n", 7629 __func__); 7630 goto retry; 7631 } 7632 7633 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7634 7635 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7636 lun->pr_key_count, res_keys->header.length); 7637 7638 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7639 if (!lun->per_res[i].registered) 7640 continue; 7641 7642 /* 7643 * We used lun->pr_key_count to calculate the 7644 * size to allocate. If it turns out the number of 7645 * initiators with the registered flag set is 7646 * larger than that (i.e. they haven't been kept in 7647 * sync), we've got a problem. 7648 */ 7649 if (key_count >= lun->pr_key_count) { 7650#ifdef NEEDTOPORT 7651 csevent_log(CSC_CTL | CSC_SHELF_SW | 7652 CTL_PR_ERROR, 7653 csevent_LogType_Fault, 7654 csevent_AlertLevel_Yellow, 7655 csevent_FRU_ShelfController, 7656 csevent_FRU_Firmware, 7657 csevent_FRU_Unknown, 7658 "registered keys %d >= key " 7659 "count %d", key_count, 7660 lun->pr_key_count); 7661#endif 7662 key_count++; 7663 continue; 7664 } 7665 memcpy(res_keys->keys[key_count].key, 7666 lun->per_res[i].res_key.key, 7667 ctl_min(sizeof(res_keys->keys[key_count].key), 7668 sizeof(lun->per_res[i].res_key))); 7669 key_count++; 7670 } 7671 break; 7672 } 7673 case SPRI_RR: { // read reservation 7674 struct scsi_per_res_in_rsrv *res; 7675 int tmp_len, header_only; 7676 7677 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7678 7679 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7680 7681 if (lun->flags & CTL_LUN_PR_RESERVED) 7682 { 7683 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7684 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7685 res->header.length); 7686 header_only = 0; 7687 } else { 7688 tmp_len = sizeof(struct scsi_per_res_in_header); 7689 scsi_ulto4b(0, res->header.length); 7690 header_only = 1; 7691 } 7692 7693 /* 7694 * We had to drop the lock to allocate our buffer, which 7695 * leaves time for someone to come in with another 7696 * persistent reservation. (That is unlikely, though, 7697 * since this should be the only persistent reservation 7698 * command active right now.) 7699 */ 7700 if (tmp_len != total_len) { 7701 mtx_unlock(&lun->lun_lock); 7702 free(ctsio->kern_data_ptr, M_CTL); 7703 printf("%s: reservation status changed, retrying\n", 7704 __func__); 7705 goto retry; 7706 } 7707 7708 /* 7709 * No reservation held, so we're done. 7710 */ 7711 if (header_only != 0) 7712 break; 7713 7714 /* 7715 * If the registration is an All Registrants type, the key 7716 * is 0, since it doesn't really matter. 7717 */ 7718 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7719 memcpy(res->data.reservation, 7720 &lun->per_res[lun->pr_res_idx].res_key, 7721 sizeof(struct scsi_per_res_key)); 7722 } 7723 res->data.scopetype = lun->res_type; 7724 break; 7725 } 7726 case SPRI_RC: //report capabilities 7727 { 7728 struct scsi_per_res_cap *res_cap; 7729 uint16_t type_mask; 7730 7731 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7732 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7733 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7734 type_mask = SPRI_TM_WR_EX_AR | 7735 SPRI_TM_EX_AC_RO | 7736 SPRI_TM_WR_EX_RO | 7737 SPRI_TM_EX_AC | 7738 SPRI_TM_WR_EX | 7739 SPRI_TM_EX_AC_AR; 7740 scsi_ulto2b(type_mask, res_cap->type_mask); 7741 break; 7742 } 7743 case SPRI_RS: //read full status 7744 default: 7745 /* 7746 * This is a bug, because we just checked for this above, 7747 * and should have returned an error. 7748 */ 7749 panic("Invalid PR type %x", cdb->action); 7750 break; /* NOTREACHED */ 7751 } 7752 mtx_unlock(&lun->lun_lock); 7753 7754 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7755 ctsio->be_move_done = ctl_config_move_done; 7756 7757 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7758 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7759 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7760 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7761 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7762 7763 ctl_datamove((union ctl_io *)ctsio); 7764 7765 return (CTL_RETVAL_COMPLETE); 7766} 7767 7768/* 7769 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7770 * it should return. 7771 */ 7772static int 7773ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7774 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7775 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7776 struct scsi_per_res_out_parms* param) 7777{ 7778 union ctl_ha_msg persis_io; 7779 int retval, i; 7780 int isc_retval; 7781 7782 retval = 0; 7783 7784 mtx_lock(&lun->lun_lock); 7785 if (sa_res_key == 0) { 7786 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7787 /* validate scope and type */ 7788 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7789 SPR_LU_SCOPE) { 7790 mtx_unlock(&lun->lun_lock); 7791 ctl_set_invalid_field(/*ctsio*/ ctsio, 7792 /*sks_valid*/ 1, 7793 /*command*/ 1, 7794 /*field*/ 2, 7795 /*bit_valid*/ 1, 7796 /*bit*/ 4); 7797 ctl_done((union ctl_io *)ctsio); 7798 return (1); 7799 } 7800 7801 if (type>8 || type==2 || type==4 || type==0) { 7802 mtx_unlock(&lun->lun_lock); 7803 ctl_set_invalid_field(/*ctsio*/ ctsio, 7804 /*sks_valid*/ 1, 7805 /*command*/ 1, 7806 /*field*/ 2, 7807 /*bit_valid*/ 1, 7808 /*bit*/ 0); 7809 ctl_done((union ctl_io *)ctsio); 7810 return (1); 7811 } 7812 7813 /* temporarily unregister this nexus */ 7814 lun->per_res[residx].registered = 0; 7815 7816 /* 7817 * Unregister everybody else and build UA for 7818 * them 7819 */ 7820 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7821 if (lun->per_res[i].registered == 0) 7822 continue; 7823 7824 if (!persis_offset 7825 && i <CTL_MAX_INITIATORS) 7826 lun->pending_sense[i].ua_pending |= 7827 CTL_UA_REG_PREEMPT; 7828 else if (persis_offset 7829 && i >= persis_offset) 7830 lun->pending_sense[i-persis_offset 7831 ].ua_pending |= 7832 CTL_UA_REG_PREEMPT; 7833 lun->per_res[i].registered = 0; 7834 memset(&lun->per_res[i].res_key, 0, 7835 sizeof(struct scsi_per_res_key)); 7836 } 7837 lun->per_res[residx].registered = 1; 7838 lun->pr_key_count = 1; 7839 lun->res_type = type; 7840 if (lun->res_type != SPR_TYPE_WR_EX_AR 7841 && lun->res_type != SPR_TYPE_EX_AC_AR) 7842 lun->pr_res_idx = residx; 7843 7844 /* send msg to other side */ 7845 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7846 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7847 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7848 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7849 persis_io.pr.pr_info.res_type = type; 7850 memcpy(persis_io.pr.pr_info.sa_res_key, 7851 param->serv_act_res_key, 7852 sizeof(param->serv_act_res_key)); 7853 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7854 &persis_io, sizeof(persis_io), 0)) > 7855 CTL_HA_STATUS_SUCCESS) { 7856 printf("CTL:Persis Out error returned " 7857 "from ctl_ha_msg_send %d\n", 7858 isc_retval); 7859 } 7860 } else { 7861 /* not all registrants */ 7862 mtx_unlock(&lun->lun_lock); 7863 free(ctsio->kern_data_ptr, M_CTL); 7864 ctl_set_invalid_field(ctsio, 7865 /*sks_valid*/ 1, 7866 /*command*/ 0, 7867 /*field*/ 8, 7868 /*bit_valid*/ 0, 7869 /*bit*/ 0); 7870 ctl_done((union ctl_io *)ctsio); 7871 return (1); 7872 } 7873 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7874 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7875 int found = 0; 7876 7877 if (res_key == sa_res_key) { 7878 /* special case */ 7879 /* 7880 * The spec implies this is not good but doesn't 7881 * say what to do. There are two choices either 7882 * generate a res conflict or check condition 7883 * with illegal field in parameter data. Since 7884 * that is what is done when the sa_res_key is 7885 * zero I'll take that approach since this has 7886 * to do with the sa_res_key. 7887 */ 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 ctl_set_invalid_field(ctsio, 7891 /*sks_valid*/ 1, 7892 /*command*/ 0, 7893 /*field*/ 8, 7894 /*bit_valid*/ 0, 7895 /*bit*/ 0); 7896 ctl_done((union ctl_io *)ctsio); 7897 return (1); 7898 } 7899 7900 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7901 if (lun->per_res[i].registered 7902 && memcmp(param->serv_act_res_key, 7903 lun->per_res[i].res_key.key, 7904 sizeof(struct scsi_per_res_key)) != 0) 7905 continue; 7906 7907 found = 1; 7908 lun->per_res[i].registered = 0; 7909 memset(&lun->per_res[i].res_key, 0, 7910 sizeof(struct scsi_per_res_key)); 7911 lun->pr_key_count--; 7912 7913 if (!persis_offset 7914 && i < CTL_MAX_INITIATORS) 7915 lun->pending_sense[i].ua_pending |= 7916 CTL_UA_REG_PREEMPT; 7917 else if (persis_offset 7918 && i >= persis_offset) 7919 lun->pending_sense[i-persis_offset].ua_pending|= 7920 CTL_UA_REG_PREEMPT; 7921 } 7922 if (!found) { 7923 mtx_unlock(&lun->lun_lock); 7924 free(ctsio->kern_data_ptr, M_CTL); 7925 ctl_set_reservation_conflict(ctsio); 7926 ctl_done((union ctl_io *)ctsio); 7927 return (CTL_RETVAL_COMPLETE); 7928 } 7929 /* send msg to other side */ 7930 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7931 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7932 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7933 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7934 persis_io.pr.pr_info.res_type = type; 7935 memcpy(persis_io.pr.pr_info.sa_res_key, 7936 param->serv_act_res_key, 7937 sizeof(param->serv_act_res_key)); 7938 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7939 &persis_io, sizeof(persis_io), 0)) > 7940 CTL_HA_STATUS_SUCCESS) { 7941 printf("CTL:Persis Out error returned from " 7942 "ctl_ha_msg_send %d\n", isc_retval); 7943 } 7944 } else { 7945 /* Reserved but not all registrants */ 7946 /* sa_res_key is res holder */ 7947 if (memcmp(param->serv_act_res_key, 7948 lun->per_res[lun->pr_res_idx].res_key.key, 7949 sizeof(struct scsi_per_res_key)) == 0) { 7950 /* validate scope and type */ 7951 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7952 SPR_LU_SCOPE) { 7953 mtx_unlock(&lun->lun_lock); 7954 ctl_set_invalid_field(/*ctsio*/ ctsio, 7955 /*sks_valid*/ 1, 7956 /*command*/ 1, 7957 /*field*/ 2, 7958 /*bit_valid*/ 1, 7959 /*bit*/ 4); 7960 ctl_done((union ctl_io *)ctsio); 7961 return (1); 7962 } 7963 7964 if (type>8 || type==2 || type==4 || type==0) { 7965 mtx_unlock(&lun->lun_lock); 7966 ctl_set_invalid_field(/*ctsio*/ ctsio, 7967 /*sks_valid*/ 1, 7968 /*command*/ 1, 7969 /*field*/ 2, 7970 /*bit_valid*/ 1, 7971 /*bit*/ 0); 7972 ctl_done((union ctl_io *)ctsio); 7973 return (1); 7974 } 7975 7976 /* 7977 * Do the following: 7978 * if sa_res_key != res_key remove all 7979 * registrants w/sa_res_key and generate UA 7980 * for these registrants(Registrations 7981 * Preempted) if it wasn't an exclusive 7982 * reservation generate UA(Reservations 7983 * Preempted) for all other registered nexuses 7984 * if the type has changed. Establish the new 7985 * reservation and holder. If res_key and 7986 * sa_res_key are the same do the above 7987 * except don't unregister the res holder. 7988 */ 7989 7990 /* 7991 * Temporarily unregister so it won't get 7992 * removed or UA generated 7993 */ 7994 lun->per_res[residx].registered = 0; 7995 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7996 if (lun->per_res[i].registered == 0) 7997 continue; 7998 7999 if (memcmp(param->serv_act_res_key, 8000 lun->per_res[i].res_key.key, 8001 sizeof(struct scsi_per_res_key)) == 0) { 8002 lun->per_res[i].registered = 0; 8003 memset(&lun->per_res[i].res_key, 8004 0, 8005 sizeof(struct scsi_per_res_key)); 8006 lun->pr_key_count--; 8007 8008 if (!persis_offset 8009 && i < CTL_MAX_INITIATORS) 8010 lun->pending_sense[i 8011 ].ua_pending |= 8012 CTL_UA_REG_PREEMPT; 8013 else if (persis_offset 8014 && i >= persis_offset) 8015 lun->pending_sense[ 8016 i-persis_offset].ua_pending |= 8017 CTL_UA_REG_PREEMPT; 8018 } else if (type != lun->res_type 8019 && (lun->res_type == SPR_TYPE_WR_EX_RO 8020 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8021 if (!persis_offset 8022 && i < CTL_MAX_INITIATORS) 8023 lun->pending_sense[i 8024 ].ua_pending |= 8025 CTL_UA_RES_RELEASE; 8026 else if (persis_offset 8027 && i >= persis_offset) 8028 lun->pending_sense[ 8029 i-persis_offset 8030 ].ua_pending |= 8031 CTL_UA_RES_RELEASE; 8032 } 8033 } 8034 lun->per_res[residx].registered = 1; 8035 lun->res_type = type; 8036 if (lun->res_type != SPR_TYPE_WR_EX_AR 8037 && lun->res_type != SPR_TYPE_EX_AC_AR) 8038 lun->pr_res_idx = residx; 8039 else 8040 lun->pr_res_idx = 8041 CTL_PR_ALL_REGISTRANTS; 8042 8043 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8044 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8045 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8046 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8047 persis_io.pr.pr_info.res_type = type; 8048 memcpy(persis_io.pr.pr_info.sa_res_key, 8049 param->serv_act_res_key, 8050 sizeof(param->serv_act_res_key)); 8051 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8052 &persis_io, sizeof(persis_io), 0)) > 8053 CTL_HA_STATUS_SUCCESS) { 8054 printf("CTL:Persis Out error returned " 8055 "from ctl_ha_msg_send %d\n", 8056 isc_retval); 8057 } 8058 } else { 8059 /* 8060 * sa_res_key is not the res holder just 8061 * remove registrants 8062 */ 8063 int found=0; 8064 8065 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8066 if (memcmp(param->serv_act_res_key, 8067 lun->per_res[i].res_key.key, 8068 sizeof(struct scsi_per_res_key)) != 0) 8069 continue; 8070 8071 found = 1; 8072 lun->per_res[i].registered = 0; 8073 memset(&lun->per_res[i].res_key, 0, 8074 sizeof(struct scsi_per_res_key)); 8075 lun->pr_key_count--; 8076 8077 if (!persis_offset 8078 && i < CTL_MAX_INITIATORS) 8079 lun->pending_sense[i].ua_pending |= 8080 CTL_UA_REG_PREEMPT; 8081 else if (persis_offset 8082 && i >= persis_offset) 8083 lun->pending_sense[ 8084 i-persis_offset].ua_pending |= 8085 CTL_UA_REG_PREEMPT; 8086 } 8087 8088 if (!found) { 8089 mtx_unlock(&lun->lun_lock); 8090 free(ctsio->kern_data_ptr, M_CTL); 8091 ctl_set_reservation_conflict(ctsio); 8092 ctl_done((union ctl_io *)ctsio); 8093 return (1); 8094 } 8095 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8096 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8097 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8098 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8099 persis_io.pr.pr_info.res_type = type; 8100 memcpy(persis_io.pr.pr_info.sa_res_key, 8101 param->serv_act_res_key, 8102 sizeof(param->serv_act_res_key)); 8103 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8104 &persis_io, sizeof(persis_io), 0)) > 8105 CTL_HA_STATUS_SUCCESS) { 8106 printf("CTL:Persis Out error returned " 8107 "from ctl_ha_msg_send %d\n", 8108 isc_retval); 8109 } 8110 } 8111 } 8112 8113 lun->PRGeneration++; 8114 mtx_unlock(&lun->lun_lock); 8115 8116 return (retval); 8117} 8118 8119static void 8120ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8121{ 8122 int i; 8123 8124 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8125 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8126 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8127 msg->pr.pr_info.sa_res_key, 8128 sizeof(struct scsi_per_res_key)) != 0) { 8129 uint64_t sa_res_key; 8130 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8131 8132 if (sa_res_key == 0) { 8133 /* temporarily unregister this nexus */ 8134 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8135 8136 /* 8137 * Unregister everybody else and build UA for 8138 * them 8139 */ 8140 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8141 if (lun->per_res[i].registered == 0) 8142 continue; 8143 8144 if (!persis_offset 8145 && i < CTL_MAX_INITIATORS) 8146 lun->pending_sense[i].ua_pending |= 8147 CTL_UA_REG_PREEMPT; 8148 else if (persis_offset && i >= persis_offset) 8149 lun->pending_sense[i - 8150 persis_offset].ua_pending |= 8151 CTL_UA_REG_PREEMPT; 8152 lun->per_res[i].registered = 0; 8153 memset(&lun->per_res[i].res_key, 0, 8154 sizeof(struct scsi_per_res_key)); 8155 } 8156 8157 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8158 lun->pr_key_count = 1; 8159 lun->res_type = msg->pr.pr_info.res_type; 8160 if (lun->res_type != SPR_TYPE_WR_EX_AR 8161 && lun->res_type != SPR_TYPE_EX_AC_AR) 8162 lun->pr_res_idx = msg->pr.pr_info.residx; 8163 } else { 8164 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8165 if (memcmp(msg->pr.pr_info.sa_res_key, 8166 lun->per_res[i].res_key.key, 8167 sizeof(struct scsi_per_res_key)) != 0) 8168 continue; 8169 8170 lun->per_res[i].registered = 0; 8171 memset(&lun->per_res[i].res_key, 0, 8172 sizeof(struct scsi_per_res_key)); 8173 lun->pr_key_count--; 8174 8175 if (!persis_offset 8176 && i < persis_offset) 8177 lun->pending_sense[i].ua_pending |= 8178 CTL_UA_REG_PREEMPT; 8179 else if (persis_offset 8180 && i >= persis_offset) 8181 lun->pending_sense[i - 8182 persis_offset].ua_pending |= 8183 CTL_UA_REG_PREEMPT; 8184 } 8185 } 8186 } else { 8187 /* 8188 * Temporarily unregister so it won't get removed 8189 * or UA generated 8190 */ 8191 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8192 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8193 if (lun->per_res[i].registered == 0) 8194 continue; 8195 8196 if (memcmp(msg->pr.pr_info.sa_res_key, 8197 lun->per_res[i].res_key.key, 8198 sizeof(struct scsi_per_res_key)) == 0) { 8199 lun->per_res[i].registered = 0; 8200 memset(&lun->per_res[i].res_key, 0, 8201 sizeof(struct scsi_per_res_key)); 8202 lun->pr_key_count--; 8203 if (!persis_offset 8204 && i < CTL_MAX_INITIATORS) 8205 lun->pending_sense[i].ua_pending |= 8206 CTL_UA_REG_PREEMPT; 8207 else if (persis_offset 8208 && i >= persis_offset) 8209 lun->pending_sense[i - 8210 persis_offset].ua_pending |= 8211 CTL_UA_REG_PREEMPT; 8212 } else if (msg->pr.pr_info.res_type != lun->res_type 8213 && (lun->res_type == SPR_TYPE_WR_EX_RO 8214 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8215 if (!persis_offset 8216 && i < persis_offset) 8217 lun->pending_sense[i 8218 ].ua_pending |= 8219 CTL_UA_RES_RELEASE; 8220 else if (persis_offset 8221 && i >= persis_offset) 8222 lun->pending_sense[i - 8223 persis_offset].ua_pending |= 8224 CTL_UA_RES_RELEASE; 8225 } 8226 } 8227 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8228 lun->res_type = msg->pr.pr_info.res_type; 8229 if (lun->res_type != SPR_TYPE_WR_EX_AR 8230 && lun->res_type != SPR_TYPE_EX_AC_AR) 8231 lun->pr_res_idx = msg->pr.pr_info.residx; 8232 else 8233 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8234 } 8235 lun->PRGeneration++; 8236 8237} 8238 8239 8240int 8241ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8242{ 8243 int retval; 8244 int isc_retval; 8245 u_int32_t param_len; 8246 struct scsi_per_res_out *cdb; 8247 struct ctl_lun *lun; 8248 struct scsi_per_res_out_parms* param; 8249 struct ctl_softc *softc; 8250 uint32_t residx; 8251 uint64_t res_key, sa_res_key; 8252 uint8_t type; 8253 union ctl_ha_msg persis_io; 8254 int i; 8255 8256 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8257 8258 retval = CTL_RETVAL_COMPLETE; 8259 8260 softc = control_softc; 8261 8262 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8263 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8264 8265 /* 8266 * We only support whole-LUN scope. The scope & type are ignored for 8267 * register, register and ignore existing key and clear. 8268 * We sometimes ignore scope and type on preempts too!! 8269 * Verify reservation type here as well. 8270 */ 8271 type = cdb->scope_type & SPR_TYPE_MASK; 8272 if ((cdb->action == SPRO_RESERVE) 8273 || (cdb->action == SPRO_RELEASE)) { 8274 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8275 ctl_set_invalid_field(/*ctsio*/ ctsio, 8276 /*sks_valid*/ 1, 8277 /*command*/ 1, 8278 /*field*/ 2, 8279 /*bit_valid*/ 1, 8280 /*bit*/ 4); 8281 ctl_done((union ctl_io *)ctsio); 8282 return (CTL_RETVAL_COMPLETE); 8283 } 8284 8285 if (type>8 || type==2 || type==4 || type==0) { 8286 ctl_set_invalid_field(/*ctsio*/ ctsio, 8287 /*sks_valid*/ 1, 8288 /*command*/ 1, 8289 /*field*/ 2, 8290 /*bit_valid*/ 1, 8291 /*bit*/ 0); 8292 ctl_done((union ctl_io *)ctsio); 8293 return (CTL_RETVAL_COMPLETE); 8294 } 8295 } 8296 8297 param_len = scsi_4btoul(cdb->length); 8298 8299 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8300 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8301 ctsio->kern_data_len = param_len; 8302 ctsio->kern_total_len = param_len; 8303 ctsio->kern_data_resid = 0; 8304 ctsio->kern_rel_offset = 0; 8305 ctsio->kern_sg_entries = 0; 8306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8307 ctsio->be_move_done = ctl_config_move_done; 8308 ctl_datamove((union ctl_io *)ctsio); 8309 8310 return (CTL_RETVAL_COMPLETE); 8311 } 8312 8313 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8314 8315 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8316 res_key = scsi_8btou64(param->res_key.key); 8317 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8318 8319 /* 8320 * Validate the reservation key here except for SPRO_REG_IGNO 8321 * This must be done for all other service actions 8322 */ 8323 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8324 mtx_lock(&lun->lun_lock); 8325 if (lun->per_res[residx].registered) { 8326 if (memcmp(param->res_key.key, 8327 lun->per_res[residx].res_key.key, 8328 ctl_min(sizeof(param->res_key), 8329 sizeof(lun->per_res[residx].res_key))) != 0) { 8330 /* 8331 * The current key passed in doesn't match 8332 * the one the initiator previously 8333 * registered. 8334 */ 8335 mtx_unlock(&lun->lun_lock); 8336 free(ctsio->kern_data_ptr, M_CTL); 8337 ctl_set_reservation_conflict(ctsio); 8338 ctl_done((union ctl_io *)ctsio); 8339 return (CTL_RETVAL_COMPLETE); 8340 } 8341 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8342 /* 8343 * We are not registered 8344 */ 8345 mtx_unlock(&lun->lun_lock); 8346 free(ctsio->kern_data_ptr, M_CTL); 8347 ctl_set_reservation_conflict(ctsio); 8348 ctl_done((union ctl_io *)ctsio); 8349 return (CTL_RETVAL_COMPLETE); 8350 } else if (res_key != 0) { 8351 /* 8352 * We are not registered and trying to register but 8353 * the register key isn't zero. 8354 */ 8355 mtx_unlock(&lun->lun_lock); 8356 free(ctsio->kern_data_ptr, M_CTL); 8357 ctl_set_reservation_conflict(ctsio); 8358 ctl_done((union ctl_io *)ctsio); 8359 return (CTL_RETVAL_COMPLETE); 8360 } 8361 mtx_unlock(&lun->lun_lock); 8362 } 8363 8364 switch (cdb->action & SPRO_ACTION_MASK) { 8365 case SPRO_REGISTER: 8366 case SPRO_REG_IGNO: { 8367 8368#if 0 8369 printf("Registration received\n"); 8370#endif 8371 8372 /* 8373 * We don't support any of these options, as we report in 8374 * the read capabilities request (see 8375 * ctl_persistent_reserve_in(), above). 8376 */ 8377 if ((param->flags & SPR_SPEC_I_PT) 8378 || (param->flags & SPR_ALL_TG_PT) 8379 || (param->flags & SPR_APTPL)) { 8380 int bit_ptr; 8381 8382 if (param->flags & SPR_APTPL) 8383 bit_ptr = 0; 8384 else if (param->flags & SPR_ALL_TG_PT) 8385 bit_ptr = 2; 8386 else /* SPR_SPEC_I_PT */ 8387 bit_ptr = 3; 8388 8389 free(ctsio->kern_data_ptr, M_CTL); 8390 ctl_set_invalid_field(ctsio, 8391 /*sks_valid*/ 1, 8392 /*command*/ 0, 8393 /*field*/ 20, 8394 /*bit_valid*/ 1, 8395 /*bit*/ bit_ptr); 8396 ctl_done((union ctl_io *)ctsio); 8397 return (CTL_RETVAL_COMPLETE); 8398 } 8399 8400 mtx_lock(&lun->lun_lock); 8401 8402 /* 8403 * The initiator wants to clear the 8404 * key/unregister. 8405 */ 8406 if (sa_res_key == 0) { 8407 if ((res_key == 0 8408 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8409 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8410 && !lun->per_res[residx].registered)) { 8411 mtx_unlock(&lun->lun_lock); 8412 goto done; 8413 } 8414 8415 lun->per_res[residx].registered = 0; 8416 memset(&lun->per_res[residx].res_key, 8417 0, sizeof(lun->per_res[residx].res_key)); 8418 lun->pr_key_count--; 8419 8420 if (residx == lun->pr_res_idx) { 8421 lun->flags &= ~CTL_LUN_PR_RESERVED; 8422 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8423 8424 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8425 || lun->res_type == SPR_TYPE_EX_AC_RO) 8426 && lun->pr_key_count) { 8427 /* 8428 * If the reservation is a registrants 8429 * only type we need to generate a UA 8430 * for other registered inits. The 8431 * sense code should be RESERVATIONS 8432 * RELEASED 8433 */ 8434 8435 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8436 if (lun->per_res[ 8437 i+persis_offset].registered 8438 == 0) 8439 continue; 8440 lun->pending_sense[i 8441 ].ua_pending |= 8442 CTL_UA_RES_RELEASE; 8443 } 8444 } 8445 lun->res_type = 0; 8446 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8447 if (lun->pr_key_count==0) { 8448 lun->flags &= ~CTL_LUN_PR_RESERVED; 8449 lun->res_type = 0; 8450 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8451 } 8452 } 8453 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8454 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8455 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8456 persis_io.pr.pr_info.residx = residx; 8457 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8458 &persis_io, sizeof(persis_io), 0 )) > 8459 CTL_HA_STATUS_SUCCESS) { 8460 printf("CTL:Persis Out error returned from " 8461 "ctl_ha_msg_send %d\n", isc_retval); 8462 } 8463 } else /* sa_res_key != 0 */ { 8464 8465 /* 8466 * If we aren't registered currently then increment 8467 * the key count and set the registered flag. 8468 */ 8469 if (!lun->per_res[residx].registered) { 8470 lun->pr_key_count++; 8471 lun->per_res[residx].registered = 1; 8472 } 8473 8474 memcpy(&lun->per_res[residx].res_key, 8475 param->serv_act_res_key, 8476 ctl_min(sizeof(param->serv_act_res_key), 8477 sizeof(lun->per_res[residx].res_key))); 8478 8479 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8480 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8481 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8482 persis_io.pr.pr_info.residx = residx; 8483 memcpy(persis_io.pr.pr_info.sa_res_key, 8484 param->serv_act_res_key, 8485 sizeof(param->serv_act_res_key)); 8486 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8487 &persis_io, sizeof(persis_io), 0)) > 8488 CTL_HA_STATUS_SUCCESS) { 8489 printf("CTL:Persis Out error returned from " 8490 "ctl_ha_msg_send %d\n", isc_retval); 8491 } 8492 } 8493 lun->PRGeneration++; 8494 mtx_unlock(&lun->lun_lock); 8495 8496 break; 8497 } 8498 case SPRO_RESERVE: 8499#if 0 8500 printf("Reserve executed type %d\n", type); 8501#endif 8502 mtx_lock(&lun->lun_lock); 8503 if (lun->flags & CTL_LUN_PR_RESERVED) { 8504 /* 8505 * if this isn't the reservation holder and it's 8506 * not a "all registrants" type or if the type is 8507 * different then we have a conflict 8508 */ 8509 if ((lun->pr_res_idx != residx 8510 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8511 || lun->res_type != type) { 8512 mtx_unlock(&lun->lun_lock); 8513 free(ctsio->kern_data_ptr, M_CTL); 8514 ctl_set_reservation_conflict(ctsio); 8515 ctl_done((union ctl_io *)ctsio); 8516 return (CTL_RETVAL_COMPLETE); 8517 } 8518 mtx_unlock(&lun->lun_lock); 8519 } else /* create a reservation */ { 8520 /* 8521 * If it's not an "all registrants" type record 8522 * reservation holder 8523 */ 8524 if (type != SPR_TYPE_WR_EX_AR 8525 && type != SPR_TYPE_EX_AC_AR) 8526 lun->pr_res_idx = residx; /* Res holder */ 8527 else 8528 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8529 8530 lun->flags |= CTL_LUN_PR_RESERVED; 8531 lun->res_type = type; 8532 8533 mtx_unlock(&lun->lun_lock); 8534 8535 /* send msg to other side */ 8536 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8537 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8538 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8539 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8540 persis_io.pr.pr_info.res_type = type; 8541 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8542 &persis_io, sizeof(persis_io), 0)) > 8543 CTL_HA_STATUS_SUCCESS) { 8544 printf("CTL:Persis Out error returned from " 8545 "ctl_ha_msg_send %d\n", isc_retval); 8546 } 8547 } 8548 break; 8549 8550 case SPRO_RELEASE: 8551 mtx_lock(&lun->lun_lock); 8552 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8553 /* No reservation exists return good status */ 8554 mtx_unlock(&lun->lun_lock); 8555 goto done; 8556 } 8557 /* 8558 * Is this nexus a reservation holder? 8559 */ 8560 if (lun->pr_res_idx != residx 8561 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8562 /* 8563 * not a res holder return good status but 8564 * do nothing 8565 */ 8566 mtx_unlock(&lun->lun_lock); 8567 goto done; 8568 } 8569 8570 if (lun->res_type != type) { 8571 mtx_unlock(&lun->lun_lock); 8572 free(ctsio->kern_data_ptr, M_CTL); 8573 ctl_set_illegal_pr_release(ctsio); 8574 ctl_done((union ctl_io *)ctsio); 8575 return (CTL_RETVAL_COMPLETE); 8576 } 8577 8578 /* okay to release */ 8579 lun->flags &= ~CTL_LUN_PR_RESERVED; 8580 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8581 lun->res_type = 0; 8582 8583 /* 8584 * if this isn't an exclusive access 8585 * res generate UA for all other 8586 * registrants. 8587 */ 8588 if (type != SPR_TYPE_EX_AC 8589 && type != SPR_TYPE_WR_EX) { 8590 /* 8591 * temporarily unregister so we don't generate UA 8592 */ 8593 lun->per_res[residx].registered = 0; 8594 8595 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8596 if (lun->per_res[i+persis_offset].registered 8597 == 0) 8598 continue; 8599 lun->pending_sense[i].ua_pending |= 8600 CTL_UA_RES_RELEASE; 8601 } 8602 8603 lun->per_res[residx].registered = 1; 8604 } 8605 mtx_unlock(&lun->lun_lock); 8606 /* Send msg to other side */ 8607 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8608 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8609 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8610 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8611 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8612 printf("CTL:Persis Out error returned from " 8613 "ctl_ha_msg_send %d\n", isc_retval); 8614 } 8615 break; 8616 8617 case SPRO_CLEAR: 8618 /* send msg to other side */ 8619 8620 mtx_lock(&lun->lun_lock); 8621 lun->flags &= ~CTL_LUN_PR_RESERVED; 8622 lun->res_type = 0; 8623 lun->pr_key_count = 0; 8624 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8625 8626 8627 memset(&lun->per_res[residx].res_key, 8628 0, sizeof(lun->per_res[residx].res_key)); 8629 lun->per_res[residx].registered = 0; 8630 8631 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8632 if (lun->per_res[i].registered) { 8633 if (!persis_offset && i < CTL_MAX_INITIATORS) 8634 lun->pending_sense[i].ua_pending |= 8635 CTL_UA_RES_PREEMPT; 8636 else if (persis_offset && i >= persis_offset) 8637 lun->pending_sense[i-persis_offset 8638 ].ua_pending |= CTL_UA_RES_PREEMPT; 8639 8640 memset(&lun->per_res[i].res_key, 8641 0, sizeof(struct scsi_per_res_key)); 8642 lun->per_res[i].registered = 0; 8643 } 8644 lun->PRGeneration++; 8645 mtx_unlock(&lun->lun_lock); 8646 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8647 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8648 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8649 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8650 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8651 printf("CTL:Persis Out error returned from " 8652 "ctl_ha_msg_send %d\n", isc_retval); 8653 } 8654 break; 8655 8656 case SPRO_PREEMPT: { 8657 int nretval; 8658 8659 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8660 residx, ctsio, cdb, param); 8661 if (nretval != 0) 8662 return (CTL_RETVAL_COMPLETE); 8663 break; 8664 } 8665 default: 8666 panic("Invalid PR type %x", cdb->action); 8667 } 8668 8669done: 8670 free(ctsio->kern_data_ptr, M_CTL); 8671 ctl_set_success(ctsio); 8672 ctl_done((union ctl_io *)ctsio); 8673 8674 return (retval); 8675} 8676 8677/* 8678 * This routine is for handling a message from the other SC pertaining to 8679 * persistent reserve out. All the error checking will have been done 8680 * so only perorming the action need be done here to keep the two 8681 * in sync. 8682 */ 8683static void 8684ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8685{ 8686 struct ctl_lun *lun; 8687 struct ctl_softc *softc; 8688 int i; 8689 uint32_t targ_lun; 8690 8691 softc = control_softc; 8692 8693 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8694 lun = softc->ctl_luns[targ_lun]; 8695 mtx_lock(&lun->lun_lock); 8696 switch(msg->pr.pr_info.action) { 8697 case CTL_PR_REG_KEY: 8698 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8699 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8700 lun->pr_key_count++; 8701 } 8702 lun->PRGeneration++; 8703 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8704 msg->pr.pr_info.sa_res_key, 8705 sizeof(struct scsi_per_res_key)); 8706 break; 8707 8708 case CTL_PR_UNREG_KEY: 8709 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8710 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8711 0, sizeof(struct scsi_per_res_key)); 8712 lun->pr_key_count--; 8713 8714 /* XXX Need to see if the reservation has been released */ 8715 /* if so do we need to generate UA? */ 8716 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8717 lun->flags &= ~CTL_LUN_PR_RESERVED; 8718 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8719 8720 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8721 || lun->res_type == SPR_TYPE_EX_AC_RO) 8722 && lun->pr_key_count) { 8723 /* 8724 * If the reservation is a registrants 8725 * only type we need to generate a UA 8726 * for other registered inits. The 8727 * sense code should be RESERVATIONS 8728 * RELEASED 8729 */ 8730 8731 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8732 if (lun->per_res[i+ 8733 persis_offset].registered == 0) 8734 continue; 8735 8736 lun->pending_sense[i 8737 ].ua_pending |= 8738 CTL_UA_RES_RELEASE; 8739 } 8740 } 8741 lun->res_type = 0; 8742 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8743 if (lun->pr_key_count==0) { 8744 lun->flags &= ~CTL_LUN_PR_RESERVED; 8745 lun->res_type = 0; 8746 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8747 } 8748 } 8749 lun->PRGeneration++; 8750 break; 8751 8752 case CTL_PR_RESERVE: 8753 lun->flags |= CTL_LUN_PR_RESERVED; 8754 lun->res_type = msg->pr.pr_info.res_type; 8755 lun->pr_res_idx = msg->pr.pr_info.residx; 8756 8757 break; 8758 8759 case CTL_PR_RELEASE: 8760 /* 8761 * if this isn't an exclusive access res generate UA for all 8762 * other registrants. 8763 */ 8764 if (lun->res_type != SPR_TYPE_EX_AC 8765 && lun->res_type != SPR_TYPE_WR_EX) { 8766 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8767 if (lun->per_res[i+persis_offset].registered) 8768 lun->pending_sense[i].ua_pending |= 8769 CTL_UA_RES_RELEASE; 8770 } 8771 8772 lun->flags &= ~CTL_LUN_PR_RESERVED; 8773 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8774 lun->res_type = 0; 8775 break; 8776 8777 case CTL_PR_PREEMPT: 8778 ctl_pro_preempt_other(lun, msg); 8779 break; 8780 case CTL_PR_CLEAR: 8781 lun->flags &= ~CTL_LUN_PR_RESERVED; 8782 lun->res_type = 0; 8783 lun->pr_key_count = 0; 8784 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8785 8786 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8787 if (lun->per_res[i].registered == 0) 8788 continue; 8789 if (!persis_offset 8790 && i < CTL_MAX_INITIATORS) 8791 lun->pending_sense[i].ua_pending |= 8792 CTL_UA_RES_PREEMPT; 8793 else if (persis_offset 8794 && i >= persis_offset) 8795 lun->pending_sense[i-persis_offset].ua_pending|= 8796 CTL_UA_RES_PREEMPT; 8797 memset(&lun->per_res[i].res_key, 0, 8798 sizeof(struct scsi_per_res_key)); 8799 lun->per_res[i].registered = 0; 8800 } 8801 lun->PRGeneration++; 8802 break; 8803 } 8804 8805 mtx_unlock(&lun->lun_lock); 8806} 8807 8808int 8809ctl_read_write(struct ctl_scsiio *ctsio) 8810{ 8811 struct ctl_lun *lun; 8812 struct ctl_lba_len_flags *lbalen; 8813 uint64_t lba; 8814 uint32_t num_blocks; 8815 int fua, dpo; 8816 int retval; 8817 int isread; 8818 8819 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8820 8821 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8822 8823 fua = 0; 8824 dpo = 0; 8825 8826 retval = CTL_RETVAL_COMPLETE; 8827 8828 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8829 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8830 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8831 uint32_t residx; 8832 8833 /* 8834 * XXX KDM need a lock here. 8835 */ 8836 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8837 if ((lun->res_type == SPR_TYPE_EX_AC 8838 && residx != lun->pr_res_idx) 8839 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8840 || lun->res_type == SPR_TYPE_EX_AC_AR) 8841 && !lun->per_res[residx].registered)) { 8842 ctl_set_reservation_conflict(ctsio); 8843 ctl_done((union ctl_io *)ctsio); 8844 return (CTL_RETVAL_COMPLETE); 8845 } 8846 } 8847 8848 switch (ctsio->cdb[0]) { 8849 case READ_6: 8850 case WRITE_6: { 8851 struct scsi_rw_6 *cdb; 8852 8853 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8854 8855 lba = scsi_3btoul(cdb->addr); 8856 /* only 5 bits are valid in the most significant address byte */ 8857 lba &= 0x1fffff; 8858 num_blocks = cdb->length; 8859 /* 8860 * This is correct according to SBC-2. 8861 */ 8862 if (num_blocks == 0) 8863 num_blocks = 256; 8864 break; 8865 } 8866 case READ_10: 8867 case WRITE_10: { 8868 struct scsi_rw_10 *cdb; 8869 8870 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8871 8872 if (cdb->byte2 & SRW10_FUA) 8873 fua = 1; 8874 if (cdb->byte2 & SRW10_DPO) 8875 dpo = 1; 8876 8877 lba = scsi_4btoul(cdb->addr); 8878 num_blocks = scsi_2btoul(cdb->length); 8879 break; 8880 } 8881 case WRITE_VERIFY_10: { 8882 struct scsi_write_verify_10 *cdb; 8883 8884 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8885 8886 /* 8887 * XXX KDM we should do actual write verify support at some 8888 * point. This is obviously fake, we're just translating 8889 * things to a write. So we don't even bother checking the 8890 * BYTCHK field, since we don't do any verification. If 8891 * the user asks for it, we'll just pretend we did it. 8892 */ 8893 if (cdb->byte2 & SWV_DPO) 8894 dpo = 1; 8895 8896 lba = scsi_4btoul(cdb->addr); 8897 num_blocks = scsi_2btoul(cdb->length); 8898 break; 8899 } 8900 case READ_12: 8901 case WRITE_12: { 8902 struct scsi_rw_12 *cdb; 8903 8904 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8905 8906 if (cdb->byte2 & SRW12_FUA) 8907 fua = 1; 8908 if (cdb->byte2 & SRW12_DPO) 8909 dpo = 1; 8910 lba = scsi_4btoul(cdb->addr); 8911 num_blocks = scsi_4btoul(cdb->length); 8912 break; 8913 } 8914 case WRITE_VERIFY_12: { 8915 struct scsi_write_verify_12 *cdb; 8916 8917 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8918 8919 if (cdb->byte2 & SWV_DPO) 8920 dpo = 1; 8921 8922 lba = scsi_4btoul(cdb->addr); 8923 num_blocks = scsi_4btoul(cdb->length); 8924 8925 break; 8926 } 8927 case READ_16: 8928 case WRITE_16: { 8929 struct scsi_rw_16 *cdb; 8930 8931 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8932 8933 if (cdb->byte2 & SRW12_FUA) 8934 fua = 1; 8935 if (cdb->byte2 & SRW12_DPO) 8936 dpo = 1; 8937 8938 lba = scsi_8btou64(cdb->addr); 8939 num_blocks = scsi_4btoul(cdb->length); 8940 break; 8941 } 8942 case WRITE_VERIFY_16: { 8943 struct scsi_write_verify_16 *cdb; 8944 8945 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8946 8947 if (cdb->byte2 & SWV_DPO) 8948 dpo = 1; 8949 8950 lba = scsi_8btou64(cdb->addr); 8951 num_blocks = scsi_4btoul(cdb->length); 8952 break; 8953 } 8954 default: 8955 /* 8956 * We got a command we don't support. This shouldn't 8957 * happen, commands should be filtered out above us. 8958 */ 8959 ctl_set_invalid_opcode(ctsio); 8960 ctl_done((union ctl_io *)ctsio); 8961 8962 return (CTL_RETVAL_COMPLETE); 8963 break; /* NOTREACHED */ 8964 } 8965 8966 /* 8967 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 8968 * interesting for us, but if RAIDCore is in write-back mode, 8969 * getting it to do write-through for a particular transaction may 8970 * not be possible. 8971 */ 8972 8973 /* 8974 * The first check is to make sure we're in bounds, the second 8975 * check is to catch wrap-around problems. If the lba + num blocks 8976 * is less than the lba, then we've wrapped around and the block 8977 * range is invalid anyway. 8978 */ 8979 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8980 || ((lba + num_blocks) < lba)) { 8981 ctl_set_lba_out_of_range(ctsio); 8982 ctl_done((union ctl_io *)ctsio); 8983 return (CTL_RETVAL_COMPLETE); 8984 } 8985 8986 /* 8987 * According to SBC-3, a transfer length of 0 is not an error. 8988 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8989 * translates to 256 blocks for those commands. 8990 */ 8991 if (num_blocks == 0) { 8992 ctl_set_success(ctsio); 8993 ctl_done((union ctl_io *)ctsio); 8994 return (CTL_RETVAL_COMPLETE); 8995 } 8996 8997 lbalen = (struct ctl_lba_len_flags *) 8998 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8999 lbalen->lba = lba; 9000 lbalen->len = num_blocks; 9001 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9002 9003 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9004 ctsio->kern_rel_offset = 0; 9005 9006 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9007 9008 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9009 9010 return (retval); 9011} 9012 9013static int 9014ctl_cnw_cont(union ctl_io *io) 9015{ 9016 struct ctl_scsiio *ctsio; 9017 struct ctl_lun *lun; 9018 struct ctl_lba_len_flags *lbalen; 9019 int retval; 9020 9021 ctsio = &io->scsiio; 9022 ctsio->io_hdr.status = CTL_STATUS_NONE; 9023 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9024 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9025 lbalen = (struct ctl_lba_len_flags *) 9026 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9027 lbalen->flags = CTL_LLF_WRITE; 9028 9029 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9030 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9031 return (retval); 9032} 9033 9034int 9035ctl_cnw(struct ctl_scsiio *ctsio) 9036{ 9037 struct ctl_lun *lun; 9038 struct ctl_lba_len_flags *lbalen; 9039 uint64_t lba; 9040 uint32_t num_blocks; 9041 int fua, dpo; 9042 int retval; 9043 9044 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9045 9046 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9047 9048 fua = 0; 9049 dpo = 0; 9050 9051 retval = CTL_RETVAL_COMPLETE; 9052 9053 switch (ctsio->cdb[0]) { 9054 case COMPARE_AND_WRITE: { 9055 struct scsi_compare_and_write *cdb; 9056 9057 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9058 9059 if (cdb->byte2 & SRW10_FUA) 9060 fua = 1; 9061 if (cdb->byte2 & SRW10_DPO) 9062 dpo = 1; 9063 lba = scsi_8btou64(cdb->addr); 9064 num_blocks = cdb->length; 9065 break; 9066 } 9067 default: 9068 /* 9069 * We got a command we don't support. This shouldn't 9070 * happen, commands should be filtered out above us. 9071 */ 9072 ctl_set_invalid_opcode(ctsio); 9073 ctl_done((union ctl_io *)ctsio); 9074 9075 return (CTL_RETVAL_COMPLETE); 9076 break; /* NOTREACHED */ 9077 } 9078 9079 /* 9080 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9081 * interesting for us, but if RAIDCore is in write-back mode, 9082 * getting it to do write-through for a particular transaction may 9083 * not be possible. 9084 */ 9085 9086 /* 9087 * The first check is to make sure we're in bounds, the second 9088 * check is to catch wrap-around problems. If the lba + num blocks 9089 * is less than the lba, then we've wrapped around and the block 9090 * range is invalid anyway. 9091 */ 9092 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9093 || ((lba + num_blocks) < lba)) { 9094 ctl_set_lba_out_of_range(ctsio); 9095 ctl_done((union ctl_io *)ctsio); 9096 return (CTL_RETVAL_COMPLETE); 9097 } 9098 9099 /* 9100 * According to SBC-3, a transfer length of 0 is not an error. 9101 */ 9102 if (num_blocks == 0) { 9103 ctl_set_success(ctsio); 9104 ctl_done((union ctl_io *)ctsio); 9105 return (CTL_RETVAL_COMPLETE); 9106 } 9107 9108 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9109 ctsio->kern_rel_offset = 0; 9110 9111 /* 9112 * Set the IO_CONT flag, so that if this I/O gets passed to 9113 * ctl_data_submit_done(), it'll get passed back to 9114 * ctl_ctl_cnw_cont() for further processing. 9115 */ 9116 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9117 ctsio->io_cont = ctl_cnw_cont; 9118 9119 lbalen = (struct ctl_lba_len_flags *) 9120 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9121 lbalen->lba = lba; 9122 lbalen->len = num_blocks; 9123 lbalen->flags = CTL_LLF_COMPARE; 9124 9125 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9126 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9127 return (retval); 9128} 9129 9130int 9131ctl_verify(struct ctl_scsiio *ctsio) 9132{ 9133 struct ctl_lun *lun; 9134 struct ctl_lba_len_flags *lbalen; 9135 uint64_t lba; 9136 uint32_t num_blocks; 9137 int bytchk, dpo; 9138 int retval; 9139 9140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9141 9142 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9143 9144 bytchk = 0; 9145 dpo = 0; 9146 retval = CTL_RETVAL_COMPLETE; 9147 9148 switch (ctsio->cdb[0]) { 9149 case VERIFY_10: { 9150 struct scsi_verify_10 *cdb; 9151 9152 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9153 if (cdb->byte2 & SVFY_BYTCHK) 9154 bytchk = 1; 9155 if (cdb->byte2 & SVFY_DPO) 9156 dpo = 1; 9157 lba = scsi_4btoul(cdb->addr); 9158 num_blocks = scsi_2btoul(cdb->length); 9159 break; 9160 } 9161 case VERIFY_12: { 9162 struct scsi_verify_12 *cdb; 9163 9164 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9165 if (cdb->byte2 & SVFY_BYTCHK) 9166 bytchk = 1; 9167 if (cdb->byte2 & SVFY_DPO) 9168 dpo = 1; 9169 lba = scsi_4btoul(cdb->addr); 9170 num_blocks = scsi_4btoul(cdb->length); 9171 break; 9172 } 9173 case VERIFY_16: { 9174 struct scsi_rw_16 *cdb; 9175 9176 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9177 if (cdb->byte2 & SVFY_BYTCHK) 9178 bytchk = 1; 9179 if (cdb->byte2 & SVFY_DPO) 9180 dpo = 1; 9181 lba = scsi_8btou64(cdb->addr); 9182 num_blocks = scsi_4btoul(cdb->length); 9183 break; 9184 } 9185 default: 9186 /* 9187 * We got a command we don't support. This shouldn't 9188 * happen, commands should be filtered out above us. 9189 */ 9190 ctl_set_invalid_opcode(ctsio); 9191 ctl_done((union ctl_io *)ctsio); 9192 return (CTL_RETVAL_COMPLETE); 9193 } 9194 9195 /* 9196 * The first check is to make sure we're in bounds, the second 9197 * check is to catch wrap-around problems. If the lba + num blocks 9198 * is less than the lba, then we've wrapped around and the block 9199 * range is invalid anyway. 9200 */ 9201 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9202 || ((lba + num_blocks) < lba)) { 9203 ctl_set_lba_out_of_range(ctsio); 9204 ctl_done((union ctl_io *)ctsio); 9205 return (CTL_RETVAL_COMPLETE); 9206 } 9207 9208 /* 9209 * According to SBC-3, a transfer length of 0 is not an error. 9210 */ 9211 if (num_blocks == 0) { 9212 ctl_set_success(ctsio); 9213 ctl_done((union ctl_io *)ctsio); 9214 return (CTL_RETVAL_COMPLETE); 9215 } 9216 9217 lbalen = (struct ctl_lba_len_flags *) 9218 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9219 lbalen->lba = lba; 9220 lbalen->len = num_blocks; 9221 if (bytchk) { 9222 lbalen->flags = CTL_LLF_COMPARE; 9223 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9224 } else { 9225 lbalen->flags = CTL_LLF_VERIFY; 9226 ctsio->kern_total_len = 0; 9227 } 9228 ctsio->kern_rel_offset = 0; 9229 9230 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9231 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9232 return (retval); 9233} 9234 9235int 9236ctl_report_luns(struct ctl_scsiio *ctsio) 9237{ 9238 struct scsi_report_luns *cdb; 9239 struct scsi_report_luns_data *lun_data; 9240 struct ctl_lun *lun, *request_lun; 9241 int num_luns, retval; 9242 uint32_t alloc_len, lun_datalen; 9243 int num_filled, well_known; 9244 uint32_t initidx, targ_lun_id, lun_id; 9245 9246 retval = CTL_RETVAL_COMPLETE; 9247 well_known = 0; 9248 9249 cdb = (struct scsi_report_luns *)ctsio->cdb; 9250 9251 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9252 9253 mtx_lock(&control_softc->ctl_lock); 9254 num_luns = control_softc->num_luns; 9255 mtx_unlock(&control_softc->ctl_lock); 9256 9257 switch (cdb->select_report) { 9258 case RPL_REPORT_DEFAULT: 9259 case RPL_REPORT_ALL: 9260 break; 9261 case RPL_REPORT_WELLKNOWN: 9262 well_known = 1; 9263 num_luns = 0; 9264 break; 9265 default: 9266 ctl_set_invalid_field(ctsio, 9267 /*sks_valid*/ 1, 9268 /*command*/ 1, 9269 /*field*/ 2, 9270 /*bit_valid*/ 0, 9271 /*bit*/ 0); 9272 ctl_done((union ctl_io *)ctsio); 9273 return (retval); 9274 break; /* NOTREACHED */ 9275 } 9276 9277 alloc_len = scsi_4btoul(cdb->length); 9278 /* 9279 * The initiator has to allocate at least 16 bytes for this request, 9280 * so he can at least get the header and the first LUN. Otherwise 9281 * we reject the request (per SPC-3 rev 14, section 6.21). 9282 */ 9283 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9284 sizeof(struct scsi_report_luns_lundata))) { 9285 ctl_set_invalid_field(ctsio, 9286 /*sks_valid*/ 1, 9287 /*command*/ 1, 9288 /*field*/ 6, 9289 /*bit_valid*/ 0, 9290 /*bit*/ 0); 9291 ctl_done((union ctl_io *)ctsio); 9292 return (retval); 9293 } 9294 9295 request_lun = (struct ctl_lun *) 9296 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9297 9298 lun_datalen = sizeof(*lun_data) + 9299 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9300 9301 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9302 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9303 ctsio->kern_sg_entries = 0; 9304 9305 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9306 9307 mtx_lock(&control_softc->ctl_lock); 9308 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9309 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9310 if (lun_id >= CTL_MAX_LUNS) 9311 continue; 9312 lun = control_softc->ctl_luns[lun_id]; 9313 if (lun == NULL) 9314 continue; 9315 9316 if (targ_lun_id <= 0xff) { 9317 /* 9318 * Peripheral addressing method, bus number 0. 9319 */ 9320 lun_data->luns[num_filled].lundata[0] = 9321 RPL_LUNDATA_ATYP_PERIPH; 9322 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9323 num_filled++; 9324 } else if (targ_lun_id <= 0x3fff) { 9325 /* 9326 * Flat addressing method. 9327 */ 9328 lun_data->luns[num_filled].lundata[0] = 9329 RPL_LUNDATA_ATYP_FLAT | 9330 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9331#ifdef OLDCTLHEADERS 9332 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9333 (targ_lun_id & SRLD_BUS_LUN_MASK); 9334#endif 9335 lun_data->luns[num_filled].lundata[1] = 9336#ifdef OLDCTLHEADERS 9337 targ_lun_id >> SRLD_BUS_LUN_BITS; 9338#endif 9339 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9340 num_filled++; 9341 } else { 9342 printf("ctl_report_luns: bogus LUN number %jd, " 9343 "skipping\n", (intmax_t)targ_lun_id); 9344 } 9345 /* 9346 * According to SPC-3, rev 14 section 6.21: 9347 * 9348 * "The execution of a REPORT LUNS command to any valid and 9349 * installed logical unit shall clear the REPORTED LUNS DATA 9350 * HAS CHANGED unit attention condition for all logical 9351 * units of that target with respect to the requesting 9352 * initiator. A valid and installed logical unit is one 9353 * having a PERIPHERAL QUALIFIER of 000b in the standard 9354 * INQUIRY data (see 6.4.2)." 9355 * 9356 * If request_lun is NULL, the LUN this report luns command 9357 * was issued to is either disabled or doesn't exist. In that 9358 * case, we shouldn't clear any pending lun change unit 9359 * attention. 9360 */ 9361 if (request_lun != NULL) { 9362 mtx_lock(&lun->lun_lock); 9363 lun->pending_sense[initidx].ua_pending &= 9364 ~CTL_UA_LUN_CHANGE; 9365 mtx_unlock(&lun->lun_lock); 9366 } 9367 } 9368 mtx_unlock(&control_softc->ctl_lock); 9369 9370 /* 9371 * It's quite possible that we've returned fewer LUNs than we allocated 9372 * space for. Trim it. 9373 */ 9374 lun_datalen = sizeof(*lun_data) + 9375 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9376 9377 if (lun_datalen < alloc_len) { 9378 ctsio->residual = alloc_len - lun_datalen; 9379 ctsio->kern_data_len = lun_datalen; 9380 ctsio->kern_total_len = lun_datalen; 9381 } else { 9382 ctsio->residual = 0; 9383 ctsio->kern_data_len = alloc_len; 9384 ctsio->kern_total_len = alloc_len; 9385 } 9386 ctsio->kern_data_resid = 0; 9387 ctsio->kern_rel_offset = 0; 9388 ctsio->kern_sg_entries = 0; 9389 9390 /* 9391 * We set this to the actual data length, regardless of how much 9392 * space we actually have to return results. If the user looks at 9393 * this value, he'll know whether or not he allocated enough space 9394 * and reissue the command if necessary. We don't support well 9395 * known logical units, so if the user asks for that, return none. 9396 */ 9397 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9398 9399 /* 9400 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9401 * this request. 9402 */ 9403 ctsio->scsi_status = SCSI_STATUS_OK; 9404 9405 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9406 ctsio->be_move_done = ctl_config_move_done; 9407 ctl_datamove((union ctl_io *)ctsio); 9408 9409 return (retval); 9410} 9411 9412int 9413ctl_request_sense(struct ctl_scsiio *ctsio) 9414{ 9415 struct scsi_request_sense *cdb; 9416 struct scsi_sense_data *sense_ptr; 9417 struct ctl_lun *lun; 9418 uint32_t initidx; 9419 int have_error; 9420 scsi_sense_data_type sense_format; 9421 9422 cdb = (struct scsi_request_sense *)ctsio->cdb; 9423 9424 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9425 9426 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9427 9428 /* 9429 * Determine which sense format the user wants. 9430 */ 9431 if (cdb->byte2 & SRS_DESC) 9432 sense_format = SSD_TYPE_DESC; 9433 else 9434 sense_format = SSD_TYPE_FIXED; 9435 9436 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9437 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9438 ctsio->kern_sg_entries = 0; 9439 9440 /* 9441 * struct scsi_sense_data, which is currently set to 256 bytes, is 9442 * larger than the largest allowed value for the length field in the 9443 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9444 */ 9445 ctsio->residual = 0; 9446 ctsio->kern_data_len = cdb->length; 9447 ctsio->kern_total_len = cdb->length; 9448 9449 ctsio->kern_data_resid = 0; 9450 ctsio->kern_rel_offset = 0; 9451 ctsio->kern_sg_entries = 0; 9452 9453 /* 9454 * If we don't have a LUN, we don't have any pending sense. 9455 */ 9456 if (lun == NULL) 9457 goto no_sense; 9458 9459 have_error = 0; 9460 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9461 /* 9462 * Check for pending sense, and then for pending unit attentions. 9463 * Pending sense gets returned first, then pending unit attentions. 9464 */ 9465 mtx_lock(&lun->lun_lock); 9466 if (ctl_is_set(lun->have_ca, initidx)) { 9467 scsi_sense_data_type stored_format; 9468 9469 /* 9470 * Check to see which sense format was used for the stored 9471 * sense data. 9472 */ 9473 stored_format = scsi_sense_type( 9474 &lun->pending_sense[initidx].sense); 9475 9476 /* 9477 * If the user requested a different sense format than the 9478 * one we stored, then we need to convert it to the other 9479 * format. If we're going from descriptor to fixed format 9480 * sense data, we may lose things in translation, depending 9481 * on what options were used. 9482 * 9483 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9484 * for some reason we'll just copy it out as-is. 9485 */ 9486 if ((stored_format == SSD_TYPE_FIXED) 9487 && (sense_format == SSD_TYPE_DESC)) 9488 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9489 &lun->pending_sense[initidx].sense, 9490 (struct scsi_sense_data_desc *)sense_ptr); 9491 else if ((stored_format == SSD_TYPE_DESC) 9492 && (sense_format == SSD_TYPE_FIXED)) 9493 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9494 &lun->pending_sense[initidx].sense, 9495 (struct scsi_sense_data_fixed *)sense_ptr); 9496 else 9497 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9498 ctl_min(sizeof(*sense_ptr), 9499 sizeof(lun->pending_sense[initidx].sense))); 9500 9501 ctl_clear_mask(lun->have_ca, initidx); 9502 have_error = 1; 9503 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9504 ctl_ua_type ua_type; 9505 9506 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9507 sense_ptr, sense_format); 9508 if (ua_type != CTL_UA_NONE) { 9509 have_error = 1; 9510 /* We're reporting this UA, so clear it */ 9511 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9512 } 9513 } 9514 mtx_unlock(&lun->lun_lock); 9515 9516 /* 9517 * We already have a pending error, return it. 9518 */ 9519 if (have_error != 0) { 9520 /* 9521 * We report the SCSI status as OK, since the status of the 9522 * request sense command itself is OK. 9523 */ 9524 ctsio->scsi_status = SCSI_STATUS_OK; 9525 9526 /* 9527 * We report 0 for the sense length, because we aren't doing 9528 * autosense in this case. We're reporting sense as 9529 * parameter data. 9530 */ 9531 ctsio->sense_len = 0; 9532 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9533 ctsio->be_move_done = ctl_config_move_done; 9534 ctl_datamove((union ctl_io *)ctsio); 9535 9536 return (CTL_RETVAL_COMPLETE); 9537 } 9538 9539no_sense: 9540 9541 /* 9542 * No sense information to report, so we report that everything is 9543 * okay. 9544 */ 9545 ctl_set_sense_data(sense_ptr, 9546 lun, 9547 sense_format, 9548 /*current_error*/ 1, 9549 /*sense_key*/ SSD_KEY_NO_SENSE, 9550 /*asc*/ 0x00, 9551 /*ascq*/ 0x00, 9552 SSD_ELEM_NONE); 9553 9554 ctsio->scsi_status = SCSI_STATUS_OK; 9555 9556 /* 9557 * We report 0 for the sense length, because we aren't doing 9558 * autosense in this case. We're reporting sense as parameter data. 9559 */ 9560 ctsio->sense_len = 0; 9561 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9562 ctsio->be_move_done = ctl_config_move_done; 9563 ctl_datamove((union ctl_io *)ctsio); 9564 9565 return (CTL_RETVAL_COMPLETE); 9566} 9567 9568int 9569ctl_tur(struct ctl_scsiio *ctsio) 9570{ 9571 struct ctl_lun *lun; 9572 9573 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9574 9575 CTL_DEBUG_PRINT(("ctl_tur\n")); 9576 9577 if (lun == NULL) 9578 return (EINVAL); 9579 9580 ctsio->scsi_status = SCSI_STATUS_OK; 9581 ctsio->io_hdr.status = CTL_SUCCESS; 9582 9583 ctl_done((union ctl_io *)ctsio); 9584 9585 return (CTL_RETVAL_COMPLETE); 9586} 9587 9588#ifdef notyet 9589static int 9590ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9591{ 9592 9593} 9594#endif 9595 9596static int 9597ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9598{ 9599 struct scsi_vpd_supported_pages *pages; 9600 int sup_page_size; 9601 struct ctl_lun *lun; 9602 9603 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9604 9605 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9606 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9607 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9608 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9609 ctsio->kern_sg_entries = 0; 9610 9611 if (sup_page_size < alloc_len) { 9612 ctsio->residual = alloc_len - sup_page_size; 9613 ctsio->kern_data_len = sup_page_size; 9614 ctsio->kern_total_len = sup_page_size; 9615 } else { 9616 ctsio->residual = 0; 9617 ctsio->kern_data_len = alloc_len; 9618 ctsio->kern_total_len = alloc_len; 9619 } 9620 ctsio->kern_data_resid = 0; 9621 ctsio->kern_rel_offset = 0; 9622 ctsio->kern_sg_entries = 0; 9623 9624 /* 9625 * The control device is always connected. The disk device, on the 9626 * other hand, may not be online all the time. Need to change this 9627 * to figure out whether the disk device is actually online or not. 9628 */ 9629 if (lun != NULL) 9630 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9631 lun->be_lun->lun_type; 9632 else 9633 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9634 9635 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9636 /* Supported VPD pages */ 9637 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9638 /* Serial Number */ 9639 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9640 /* Device Identification */ 9641 pages->page_list[2] = SVPD_DEVICE_ID; 9642 /* SCSI Ports */ 9643 pages->page_list[3] = SVPD_SCSI_PORTS; 9644 /* Block limits */ 9645 pages->page_list[4] = SVPD_BLOCK_LIMITS; 9646 /* Logical Block Provisioning */ 9647 pages->page_list[5] = SVPD_LBP; 9648 9649 ctsio->scsi_status = SCSI_STATUS_OK; 9650 9651 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9652 ctsio->be_move_done = ctl_config_move_done; 9653 ctl_datamove((union ctl_io *)ctsio); 9654 9655 return (CTL_RETVAL_COMPLETE); 9656} 9657 9658static int 9659ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9660{ 9661 struct scsi_vpd_unit_serial_number *sn_ptr; 9662 struct ctl_lun *lun; 9663 9664 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9665 9666 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9667 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9668 ctsio->kern_sg_entries = 0; 9669 9670 if (sizeof(*sn_ptr) < alloc_len) { 9671 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9672 ctsio->kern_data_len = sizeof(*sn_ptr); 9673 ctsio->kern_total_len = sizeof(*sn_ptr); 9674 } else { 9675 ctsio->residual = 0; 9676 ctsio->kern_data_len = alloc_len; 9677 ctsio->kern_total_len = alloc_len; 9678 } 9679 ctsio->kern_data_resid = 0; 9680 ctsio->kern_rel_offset = 0; 9681 ctsio->kern_sg_entries = 0; 9682 9683 /* 9684 * The control device is always connected. The disk device, on the 9685 * other hand, may not be online all the time. Need to change this 9686 * to figure out whether the disk device is actually online or not. 9687 */ 9688 if (lun != NULL) 9689 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9690 lun->be_lun->lun_type; 9691 else 9692 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9693 9694 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9695 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9696 /* 9697 * If we don't have a LUN, we just leave the serial number as 9698 * all spaces. 9699 */ 9700 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9701 if (lun != NULL) { 9702 strncpy((char *)sn_ptr->serial_num, 9703 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9704 } 9705 ctsio->scsi_status = SCSI_STATUS_OK; 9706 9707 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9708 ctsio->be_move_done = ctl_config_move_done; 9709 ctl_datamove((union ctl_io *)ctsio); 9710 9711 return (CTL_RETVAL_COMPLETE); 9712} 9713 9714 9715static int 9716ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9717{ 9718 struct scsi_vpd_device_id *devid_ptr; 9719 struct scsi_vpd_id_descriptor *desc; 9720 struct ctl_softc *ctl_softc; 9721 struct ctl_lun *lun; 9722 struct ctl_port *port; 9723 int data_len; 9724 uint8_t proto; 9725 9726 ctl_softc = control_softc; 9727 9728 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9729 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9730 9731 data_len = sizeof(struct scsi_vpd_device_id) + 9732 sizeof(struct scsi_vpd_id_descriptor) + 9733 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9734 sizeof(struct scsi_vpd_id_descriptor) + 9735 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9736 if (lun && lun->lun_devid) 9737 data_len += lun->lun_devid->len; 9738 if (port->port_devid) 9739 data_len += port->port_devid->len; 9740 if (port->target_devid) 9741 data_len += port->target_devid->len; 9742 9743 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9744 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9745 ctsio->kern_sg_entries = 0; 9746 9747 if (data_len < alloc_len) { 9748 ctsio->residual = alloc_len - data_len; 9749 ctsio->kern_data_len = data_len; 9750 ctsio->kern_total_len = data_len; 9751 } else { 9752 ctsio->residual = 0; 9753 ctsio->kern_data_len = alloc_len; 9754 ctsio->kern_total_len = alloc_len; 9755 } 9756 ctsio->kern_data_resid = 0; 9757 ctsio->kern_rel_offset = 0; 9758 ctsio->kern_sg_entries = 0; 9759 9760 /* 9761 * The control device is always connected. The disk device, on the 9762 * other hand, may not be online all the time. 9763 */ 9764 if (lun != NULL) 9765 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9766 lun->be_lun->lun_type; 9767 else 9768 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9769 devid_ptr->page_code = SVPD_DEVICE_ID; 9770 scsi_ulto2b(data_len - 4, devid_ptr->length); 9771 9772 if (port->port_type == CTL_PORT_FC) 9773 proto = SCSI_PROTO_FC << 4; 9774 else if (port->port_type == CTL_PORT_ISCSI) 9775 proto = SCSI_PROTO_ISCSI << 4; 9776 else 9777 proto = SCSI_PROTO_SPI << 4; 9778 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9779 9780 /* 9781 * We're using a LUN association here. i.e., this device ID is a 9782 * per-LUN identifier. 9783 */ 9784 if (lun && lun->lun_devid) { 9785 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9786 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9787 lun->lun_devid->len); 9788 } 9789 9790 /* 9791 * This is for the WWPN which is a port association. 9792 */ 9793 if (port->port_devid) { 9794 memcpy(desc, port->port_devid->data, port->port_devid->len); 9795 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9796 port->port_devid->len); 9797 } 9798 9799 /* 9800 * This is for the Relative Target Port(type 4h) identifier 9801 */ 9802 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9803 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9804 SVPD_ID_TYPE_RELTARG; 9805 desc->length = 4; 9806 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9807 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9808 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9809 9810 /* 9811 * This is for the Target Port Group(type 5h) identifier 9812 */ 9813 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9814 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9815 SVPD_ID_TYPE_TPORTGRP; 9816 desc->length = 4; 9817 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9818 &desc->identifier[2]); 9819 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9820 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9821 9822 /* 9823 * This is for the Target identifier 9824 */ 9825 if (port->target_devid) { 9826 memcpy(desc, port->target_devid->data, port->target_devid->len); 9827 } 9828 9829 ctsio->scsi_status = SCSI_STATUS_OK; 9830 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9831 ctsio->be_move_done = ctl_config_move_done; 9832 ctl_datamove((union ctl_io *)ctsio); 9833 9834 return (CTL_RETVAL_COMPLETE); 9835} 9836 9837static int 9838ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9839{ 9840 struct ctl_softc *softc = control_softc; 9841 struct scsi_vpd_scsi_ports *sp; 9842 struct scsi_vpd_port_designation *pd; 9843 struct scsi_vpd_port_designation_cont *pdc; 9844 struct ctl_lun *lun; 9845 struct ctl_port *port; 9846 int data_len, num_target_ports, id_len, g, pg, p; 9847 int num_target_port_groups, single; 9848 9849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9850 9851 single = ctl_is_single; 9852 if (single) 9853 num_target_port_groups = 1; 9854 else 9855 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9856 num_target_ports = 0; 9857 id_len = 0; 9858 mtx_lock(&softc->ctl_lock); 9859 STAILQ_FOREACH(port, &softc->port_list, links) { 9860 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9861 continue; 9862 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 9863 CTL_MAX_LUNS) 9864 continue; 9865 num_target_ports++; 9866 if (port->port_devid) 9867 id_len += port->port_devid->len; 9868 } 9869 mtx_unlock(&softc->ctl_lock); 9870 9871 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9872 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9873 sizeof(struct scsi_vpd_port_designation_cont)) + id_len; 9874 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9875 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9876 ctsio->kern_sg_entries = 0; 9877 9878 if (data_len < alloc_len) { 9879 ctsio->residual = alloc_len - data_len; 9880 ctsio->kern_data_len = data_len; 9881 ctsio->kern_total_len = data_len; 9882 } else { 9883 ctsio->residual = 0; 9884 ctsio->kern_data_len = alloc_len; 9885 ctsio->kern_total_len = alloc_len; 9886 } 9887 ctsio->kern_data_resid = 0; 9888 ctsio->kern_rel_offset = 0; 9889 ctsio->kern_sg_entries = 0; 9890 9891 /* 9892 * The control device is always connected. The disk device, on the 9893 * other hand, may not be online all the time. Need to change this 9894 * to figure out whether the disk device is actually online or not. 9895 */ 9896 if (lun != NULL) 9897 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9898 lun->be_lun->lun_type; 9899 else 9900 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9901 9902 sp->page_code = SVPD_SCSI_PORTS; 9903 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9904 sp->page_length); 9905 pd = &sp->design[0]; 9906 9907 mtx_lock(&softc->ctl_lock); 9908 if (softc->flags & CTL_FLAG_MASTER_SHELF) 9909 pg = 0; 9910 else 9911 pg = 1; 9912 for (g = 0; g < num_target_port_groups; g++) { 9913 STAILQ_FOREACH(port, &softc->port_list, links) { 9914 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9915 continue; 9916 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 9917 CTL_MAX_LUNS) 9918 continue; 9919 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9920 scsi_ulto2b(p, pd->relative_port_id); 9921 scsi_ulto2b(0, pd->initiator_transportid_length); 9922 pdc = (struct scsi_vpd_port_designation_cont *) 9923 &pd->initiator_transportid[0]; 9924 if (port->port_devid && g == pg) { 9925 id_len = port->port_devid->len; 9926 scsi_ulto2b(port->port_devid->len, 9927 pdc->target_port_descriptors_length); 9928 memcpy(pdc->target_port_descriptors, 9929 port->port_devid->data, port->port_devid->len); 9930 } else { 9931 id_len = 0; 9932 scsi_ulto2b(0, pdc->target_port_descriptors_length); 9933 } 9934 pd = (struct scsi_vpd_port_designation *) 9935 ((uint8_t *)pdc->target_port_descriptors + id_len); 9936 } 9937 } 9938 mtx_unlock(&softc->ctl_lock); 9939 9940 ctsio->scsi_status = SCSI_STATUS_OK; 9941 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9942 ctsio->be_move_done = ctl_config_move_done; 9943 ctl_datamove((union ctl_io *)ctsio); 9944 9945 return (CTL_RETVAL_COMPLETE); 9946} 9947 9948static int 9949ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9950{ 9951 struct scsi_vpd_block_limits *bl_ptr; 9952 struct ctl_lun *lun; 9953 int bs; 9954 9955 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9956 bs = lun->be_lun->blocksize; 9957 9958 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9959 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9960 ctsio->kern_sg_entries = 0; 9961 9962 if (sizeof(*bl_ptr) < alloc_len) { 9963 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9964 ctsio->kern_data_len = sizeof(*bl_ptr); 9965 ctsio->kern_total_len = sizeof(*bl_ptr); 9966 } else { 9967 ctsio->residual = 0; 9968 ctsio->kern_data_len = alloc_len; 9969 ctsio->kern_total_len = alloc_len; 9970 } 9971 ctsio->kern_data_resid = 0; 9972 ctsio->kern_rel_offset = 0; 9973 ctsio->kern_sg_entries = 0; 9974 9975 /* 9976 * The control device is always connected. The disk device, on the 9977 * other hand, may not be online all the time. Need to change this 9978 * to figure out whether the disk device is actually online or not. 9979 */ 9980 if (lun != NULL) 9981 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9982 lun->be_lun->lun_type; 9983 else 9984 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9985 9986 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9987 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 9988 bl_ptr->max_cmp_write_len = 0xff; 9989 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9990 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 9991 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9992 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9993 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9994 } 9995 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9996 9997 ctsio->scsi_status = SCSI_STATUS_OK; 9998 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9999 ctsio->be_move_done = ctl_config_move_done; 10000 ctl_datamove((union ctl_io *)ctsio); 10001 10002 return (CTL_RETVAL_COMPLETE); 10003} 10004 10005static int 10006ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10007{ 10008 struct scsi_vpd_logical_block_prov *lbp_ptr; 10009 struct ctl_lun *lun; 10010 int bs; 10011 10012 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10013 bs = lun->be_lun->blocksize; 10014 10015 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10016 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10017 ctsio->kern_sg_entries = 0; 10018 10019 if (sizeof(*lbp_ptr) < alloc_len) { 10020 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10021 ctsio->kern_data_len = sizeof(*lbp_ptr); 10022 ctsio->kern_total_len = sizeof(*lbp_ptr); 10023 } else { 10024 ctsio->residual = 0; 10025 ctsio->kern_data_len = alloc_len; 10026 ctsio->kern_total_len = alloc_len; 10027 } 10028 ctsio->kern_data_resid = 0; 10029 ctsio->kern_rel_offset = 0; 10030 ctsio->kern_sg_entries = 0; 10031 10032 /* 10033 * The control device is always connected. The disk device, on the 10034 * other hand, may not be online all the time. Need to change this 10035 * to figure out whether the disk device is actually online or not. 10036 */ 10037 if (lun != NULL) 10038 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10039 lun->be_lun->lun_type; 10040 else 10041 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10042 10043 lbp_ptr->page_code = SVPD_LBP; 10044 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10045 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10046 10047 ctsio->scsi_status = SCSI_STATUS_OK; 10048 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10049 ctsio->be_move_done = ctl_config_move_done; 10050 ctl_datamove((union ctl_io *)ctsio); 10051 10052 return (CTL_RETVAL_COMPLETE); 10053} 10054 10055static int 10056ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10057{ 10058 struct scsi_inquiry *cdb; 10059 struct ctl_lun *lun; 10060 int alloc_len, retval; 10061 10062 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10063 cdb = (struct scsi_inquiry *)ctsio->cdb; 10064 10065 retval = CTL_RETVAL_COMPLETE; 10066 10067 alloc_len = scsi_2btoul(cdb->length); 10068 10069 switch (cdb->page_code) { 10070 case SVPD_SUPPORTED_PAGES: 10071 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10072 break; 10073 case SVPD_UNIT_SERIAL_NUMBER: 10074 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10075 break; 10076 case SVPD_DEVICE_ID: 10077 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10078 break; 10079 case SVPD_SCSI_PORTS: 10080 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10081 break; 10082 case SVPD_BLOCK_LIMITS: 10083 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10084 break; 10085 case SVPD_LBP: 10086 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10087 break; 10088 default: 10089 ctl_set_invalid_field(ctsio, 10090 /*sks_valid*/ 1, 10091 /*command*/ 1, 10092 /*field*/ 2, 10093 /*bit_valid*/ 0, 10094 /*bit*/ 0); 10095 ctl_done((union ctl_io *)ctsio); 10096 retval = CTL_RETVAL_COMPLETE; 10097 break; 10098 } 10099 10100 return (retval); 10101} 10102 10103static int 10104ctl_inquiry_std(struct ctl_scsiio *ctsio) 10105{ 10106 struct scsi_inquiry_data *inq_ptr; 10107 struct scsi_inquiry *cdb; 10108 struct ctl_softc *ctl_softc; 10109 struct ctl_lun *lun; 10110 char *val; 10111 uint32_t alloc_len; 10112 int is_fc; 10113 10114 ctl_softc = control_softc; 10115 10116 /* 10117 * Figure out whether we're talking to a Fibre Channel port or not. 10118 * We treat the ioctl front end, and any SCSI adapters, as packetized 10119 * SCSI front ends. 10120 */ 10121 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 10122 CTL_PORT_FC) 10123 is_fc = 0; 10124 else 10125 is_fc = 1; 10126 10127 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10128 cdb = (struct scsi_inquiry *)ctsio->cdb; 10129 alloc_len = scsi_2btoul(cdb->length); 10130 10131 /* 10132 * We malloc the full inquiry data size here and fill it 10133 * in. If the user only asks for less, we'll give him 10134 * that much. 10135 */ 10136 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10137 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10138 ctsio->kern_sg_entries = 0; 10139 ctsio->kern_data_resid = 0; 10140 ctsio->kern_rel_offset = 0; 10141 10142 if (sizeof(*inq_ptr) < alloc_len) { 10143 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10144 ctsio->kern_data_len = sizeof(*inq_ptr); 10145 ctsio->kern_total_len = sizeof(*inq_ptr); 10146 } else { 10147 ctsio->residual = 0; 10148 ctsio->kern_data_len = alloc_len; 10149 ctsio->kern_total_len = alloc_len; 10150 } 10151 10152 /* 10153 * If we have a LUN configured, report it as connected. Otherwise, 10154 * report that it is offline or no device is supported, depending 10155 * on the value of inquiry_pq_no_lun. 10156 * 10157 * According to the spec (SPC-4 r34), the peripheral qualifier 10158 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10159 * 10160 * "A peripheral device having the specified peripheral device type 10161 * is not connected to this logical unit. However, the device 10162 * server is capable of supporting the specified peripheral device 10163 * type on this logical unit." 10164 * 10165 * According to the same spec, the peripheral qualifier 10166 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10167 * 10168 * "The device server is not capable of supporting a peripheral 10169 * device on this logical unit. For this peripheral qualifier the 10170 * peripheral device type shall be set to 1Fh. All other peripheral 10171 * device type values are reserved for this peripheral qualifier." 10172 * 10173 * Given the text, it would seem that we probably want to report that 10174 * the LUN is offline here. There is no LUN connected, but we can 10175 * support a LUN at the given LUN number. 10176 * 10177 * In the real world, though, it sounds like things are a little 10178 * different: 10179 * 10180 * - Linux, when presented with a LUN with the offline peripheral 10181 * qualifier, will create an sg driver instance for it. So when 10182 * you attach it to CTL, you wind up with a ton of sg driver 10183 * instances. (One for every LUN that Linux bothered to probe.) 10184 * Linux does this despite the fact that it issues a REPORT LUNs 10185 * to LUN 0 to get the inventory of supported LUNs. 10186 * 10187 * - There is other anecdotal evidence (from Emulex folks) about 10188 * arrays that use the offline peripheral qualifier for LUNs that 10189 * are on the "passive" path in an active/passive array. 10190 * 10191 * So the solution is provide a hopefully reasonable default 10192 * (return bad/no LUN) and allow the user to change the behavior 10193 * with a tunable/sysctl variable. 10194 */ 10195 if (lun != NULL) 10196 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10197 lun->be_lun->lun_type; 10198 else if (ctl_softc->inquiry_pq_no_lun == 0) 10199 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10200 else 10201 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10202 10203 /* RMB in byte 2 is 0 */ 10204 inq_ptr->version = SCSI_REV_SPC3; 10205 10206 /* 10207 * According to SAM-3, even if a device only supports a single 10208 * level of LUN addressing, it should still set the HISUP bit: 10209 * 10210 * 4.9.1 Logical unit numbers overview 10211 * 10212 * All logical unit number formats described in this standard are 10213 * hierarchical in structure even when only a single level in that 10214 * hierarchy is used. The HISUP bit shall be set to one in the 10215 * standard INQUIRY data (see SPC-2) when any logical unit number 10216 * format described in this standard is used. Non-hierarchical 10217 * formats are outside the scope of this standard. 10218 * 10219 * Therefore we set the HiSup bit here. 10220 * 10221 * The reponse format is 2, per SPC-3. 10222 */ 10223 inq_ptr->response_format = SID_HiSup | 2; 10224 10225 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10226 CTL_DEBUG_PRINT(("additional_length = %d\n", 10227 inq_ptr->additional_length)); 10228 10229 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10230 /* 16 bit addressing */ 10231 if (is_fc == 0) 10232 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10233 /* XXX set the SID_MultiP bit here if we're actually going to 10234 respond on multiple ports */ 10235 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10236 10237 /* 16 bit data bus, synchronous transfers */ 10238 /* XXX these flags don't apply for FC */ 10239 if (is_fc == 0) 10240 inq_ptr->flags = SID_WBus16 | SID_Sync; 10241 /* 10242 * XXX KDM do we want to support tagged queueing on the control 10243 * device at all? 10244 */ 10245 if ((lun == NULL) 10246 || (lun->be_lun->lun_type != T_PROCESSOR)) 10247 inq_ptr->flags |= SID_CmdQue; 10248 /* 10249 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10250 * We have 8 bytes for the vendor name, and 16 bytes for the device 10251 * name and 4 bytes for the revision. 10252 */ 10253 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10254 "vendor")) == NULL) { 10255 strcpy(inq_ptr->vendor, CTL_VENDOR); 10256 } else { 10257 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10258 strncpy(inq_ptr->vendor, val, 10259 min(sizeof(inq_ptr->vendor), strlen(val))); 10260 } 10261 if (lun == NULL) { 10262 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10263 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10264 switch (lun->be_lun->lun_type) { 10265 case T_DIRECT: 10266 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10267 break; 10268 case T_PROCESSOR: 10269 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10270 break; 10271 default: 10272 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10273 break; 10274 } 10275 } else { 10276 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10277 strncpy(inq_ptr->product, val, 10278 min(sizeof(inq_ptr->product), strlen(val))); 10279 } 10280 10281 /* 10282 * XXX make this a macro somewhere so it automatically gets 10283 * incremented when we make changes. 10284 */ 10285 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10286 "revision")) == NULL) { 10287 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10288 } else { 10289 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10290 strncpy(inq_ptr->revision, val, 10291 min(sizeof(inq_ptr->revision), strlen(val))); 10292 } 10293 10294 /* 10295 * For parallel SCSI, we support double transition and single 10296 * transition clocking. We also support QAS (Quick Arbitration 10297 * and Selection) and Information Unit transfers on both the 10298 * control and array devices. 10299 */ 10300 if (is_fc == 0) 10301 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10302 SID_SPI_IUS; 10303 10304 /* SAM-3 */ 10305 scsi_ulto2b(0x0060, inq_ptr->version1); 10306 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10307 scsi_ulto2b(0x0300, inq_ptr->version2); 10308 if (is_fc) { 10309 /* FCP-2 ANSI INCITS.350:2003 */ 10310 scsi_ulto2b(0x0917, inq_ptr->version3); 10311 } else { 10312 /* SPI-4 ANSI INCITS.362:200x */ 10313 scsi_ulto2b(0x0B56, inq_ptr->version3); 10314 } 10315 10316 if (lun == NULL) { 10317 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10318 scsi_ulto2b(0x0320, inq_ptr->version4); 10319 } else { 10320 switch (lun->be_lun->lun_type) { 10321 case T_DIRECT: 10322 /* 10323 * SBC-2 (no version claimed) XXX should we claim a 10324 * version? 10325 */ 10326 scsi_ulto2b(0x0320, inq_ptr->version4); 10327 break; 10328 case T_PROCESSOR: 10329 default: 10330 break; 10331 } 10332 } 10333 10334 ctsio->scsi_status = SCSI_STATUS_OK; 10335 if (ctsio->kern_data_len > 0) { 10336 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10337 ctsio->be_move_done = ctl_config_move_done; 10338 ctl_datamove((union ctl_io *)ctsio); 10339 } else { 10340 ctsio->io_hdr.status = CTL_SUCCESS; 10341 ctl_done((union ctl_io *)ctsio); 10342 } 10343 10344 return (CTL_RETVAL_COMPLETE); 10345} 10346 10347int 10348ctl_inquiry(struct ctl_scsiio *ctsio) 10349{ 10350 struct scsi_inquiry *cdb; 10351 int retval; 10352 10353 cdb = (struct scsi_inquiry *)ctsio->cdb; 10354 10355 retval = 0; 10356 10357 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10358 10359 /* 10360 * Right now, we don't support the CmdDt inquiry information. 10361 * This would be nice to support in the future. When we do 10362 * support it, we should change this test so that it checks to make 10363 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10364 */ 10365#ifdef notyet 10366 if (((cdb->byte2 & SI_EVPD) 10367 && (cdb->byte2 & SI_CMDDT))) 10368#endif 10369 if (cdb->byte2 & SI_CMDDT) { 10370 /* 10371 * Point to the SI_CMDDT bit. We might change this 10372 * when we support SI_CMDDT, but since both bits would be 10373 * "wrong", this should probably just stay as-is then. 10374 */ 10375 ctl_set_invalid_field(ctsio, 10376 /*sks_valid*/ 1, 10377 /*command*/ 1, 10378 /*field*/ 1, 10379 /*bit_valid*/ 1, 10380 /*bit*/ 1); 10381 ctl_done((union ctl_io *)ctsio); 10382 return (CTL_RETVAL_COMPLETE); 10383 } 10384 if (cdb->byte2 & SI_EVPD) 10385 retval = ctl_inquiry_evpd(ctsio); 10386#ifdef notyet 10387 else if (cdb->byte2 & SI_CMDDT) 10388 retval = ctl_inquiry_cmddt(ctsio); 10389#endif 10390 else 10391 retval = ctl_inquiry_std(ctsio); 10392 10393 return (retval); 10394} 10395 10396/* 10397 * For known CDB types, parse the LBA and length. 10398 */ 10399static int 10400ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10401{ 10402 if (io->io_hdr.io_type != CTL_IO_SCSI) 10403 return (1); 10404 10405 switch (io->scsiio.cdb[0]) { 10406 case COMPARE_AND_WRITE: { 10407 struct scsi_compare_and_write *cdb; 10408 10409 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10410 10411 *lba = scsi_8btou64(cdb->addr); 10412 *len = cdb->length; 10413 break; 10414 } 10415 case READ_6: 10416 case WRITE_6: { 10417 struct scsi_rw_6 *cdb; 10418 10419 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10420 10421 *lba = scsi_3btoul(cdb->addr); 10422 /* only 5 bits are valid in the most significant address byte */ 10423 *lba &= 0x1fffff; 10424 *len = cdb->length; 10425 break; 10426 } 10427 case READ_10: 10428 case WRITE_10: { 10429 struct scsi_rw_10 *cdb; 10430 10431 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10432 10433 *lba = scsi_4btoul(cdb->addr); 10434 *len = scsi_2btoul(cdb->length); 10435 break; 10436 } 10437 case WRITE_VERIFY_10: { 10438 struct scsi_write_verify_10 *cdb; 10439 10440 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10441 10442 *lba = scsi_4btoul(cdb->addr); 10443 *len = scsi_2btoul(cdb->length); 10444 break; 10445 } 10446 case READ_12: 10447 case WRITE_12: { 10448 struct scsi_rw_12 *cdb; 10449 10450 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10451 10452 *lba = scsi_4btoul(cdb->addr); 10453 *len = scsi_4btoul(cdb->length); 10454 break; 10455 } 10456 case WRITE_VERIFY_12: { 10457 struct scsi_write_verify_12 *cdb; 10458 10459 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10460 10461 *lba = scsi_4btoul(cdb->addr); 10462 *len = scsi_4btoul(cdb->length); 10463 break; 10464 } 10465 case READ_16: 10466 case WRITE_16: { 10467 struct scsi_rw_16 *cdb; 10468 10469 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10470 10471 *lba = scsi_8btou64(cdb->addr); 10472 *len = scsi_4btoul(cdb->length); 10473 break; 10474 } 10475 case WRITE_VERIFY_16: { 10476 struct scsi_write_verify_16 *cdb; 10477 10478 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10479 10480 10481 *lba = scsi_8btou64(cdb->addr); 10482 *len = scsi_4btoul(cdb->length); 10483 break; 10484 } 10485 case WRITE_SAME_10: { 10486 struct scsi_write_same_10 *cdb; 10487 10488 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10489 10490 *lba = scsi_4btoul(cdb->addr); 10491 *len = scsi_2btoul(cdb->length); 10492 break; 10493 } 10494 case WRITE_SAME_16: { 10495 struct scsi_write_same_16 *cdb; 10496 10497 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10498 10499 *lba = scsi_8btou64(cdb->addr); 10500 *len = scsi_4btoul(cdb->length); 10501 break; 10502 } 10503 case VERIFY_10: { 10504 struct scsi_verify_10 *cdb; 10505 10506 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10507 10508 *lba = scsi_4btoul(cdb->addr); 10509 *len = scsi_2btoul(cdb->length); 10510 break; 10511 } 10512 case VERIFY_12: { 10513 struct scsi_verify_12 *cdb; 10514 10515 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10516 10517 *lba = scsi_4btoul(cdb->addr); 10518 *len = scsi_4btoul(cdb->length); 10519 break; 10520 } 10521 case VERIFY_16: { 10522 struct scsi_verify_16 *cdb; 10523 10524 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10525 10526 *lba = scsi_8btou64(cdb->addr); 10527 *len = scsi_4btoul(cdb->length); 10528 break; 10529 } 10530 default: 10531 return (1); 10532 break; /* NOTREACHED */ 10533 } 10534 10535 return (0); 10536} 10537 10538static ctl_action 10539ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10540{ 10541 uint64_t endlba1, endlba2; 10542 10543 endlba1 = lba1 + len1 - 1; 10544 endlba2 = lba2 + len2 - 1; 10545 10546 if ((endlba1 < lba2) 10547 || (endlba2 < lba1)) 10548 return (CTL_ACTION_PASS); 10549 else 10550 return (CTL_ACTION_BLOCK); 10551} 10552 10553static ctl_action 10554ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10555{ 10556 uint64_t lba1, lba2; 10557 uint32_t len1, len2; 10558 int retval; 10559 10560 retval = ctl_get_lba_len(io1, &lba1, &len1); 10561 if (retval != 0) 10562 return (CTL_ACTION_ERROR); 10563 10564 retval = ctl_get_lba_len(io2, &lba2, &len2); 10565 if (retval != 0) 10566 return (CTL_ACTION_ERROR); 10567 10568 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10569} 10570 10571static ctl_action 10572ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10573{ 10574 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10575 ctl_serialize_action *serialize_row; 10576 10577 /* 10578 * The initiator attempted multiple untagged commands at the same 10579 * time. Can't do that. 10580 */ 10581 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10582 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10583 && ((pending_io->io_hdr.nexus.targ_port == 10584 ooa_io->io_hdr.nexus.targ_port) 10585 && (pending_io->io_hdr.nexus.initid.id == 10586 ooa_io->io_hdr.nexus.initid.id)) 10587 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10588 return (CTL_ACTION_OVERLAP); 10589 10590 /* 10591 * The initiator attempted to send multiple tagged commands with 10592 * the same ID. (It's fine if different initiators have the same 10593 * tag ID.) 10594 * 10595 * Even if all of those conditions are true, we don't kill the I/O 10596 * if the command ahead of us has been aborted. We won't end up 10597 * sending it to the FETD, and it's perfectly legal to resend a 10598 * command with the same tag number as long as the previous 10599 * instance of this tag number has been aborted somehow. 10600 */ 10601 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10602 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10603 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10604 && ((pending_io->io_hdr.nexus.targ_port == 10605 ooa_io->io_hdr.nexus.targ_port) 10606 && (pending_io->io_hdr.nexus.initid.id == 10607 ooa_io->io_hdr.nexus.initid.id)) 10608 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10609 return (CTL_ACTION_OVERLAP_TAG); 10610 10611 /* 10612 * If we get a head of queue tag, SAM-3 says that we should 10613 * immediately execute it. 10614 * 10615 * What happens if this command would normally block for some other 10616 * reason? e.g. a request sense with a head of queue tag 10617 * immediately after a write. Normally that would block, but this 10618 * will result in its getting executed immediately... 10619 * 10620 * We currently return "pass" instead of "skip", so we'll end up 10621 * going through the rest of the queue to check for overlapped tags. 10622 * 10623 * XXX KDM check for other types of blockage first?? 10624 */ 10625 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10626 return (CTL_ACTION_PASS); 10627 10628 /* 10629 * Ordered tags have to block until all items ahead of them 10630 * have completed. If we get called with an ordered tag, we always 10631 * block, if something else is ahead of us in the queue. 10632 */ 10633 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10634 return (CTL_ACTION_BLOCK); 10635 10636 /* 10637 * Simple tags get blocked until all head of queue and ordered tags 10638 * ahead of them have completed. I'm lumping untagged commands in 10639 * with simple tags here. XXX KDM is that the right thing to do? 10640 */ 10641 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10642 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10643 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10644 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10645 return (CTL_ACTION_BLOCK); 10646 10647 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10648 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10649 10650 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10651 10652 switch (serialize_row[pending_entry->seridx]) { 10653 case CTL_SER_BLOCK: 10654 return (CTL_ACTION_BLOCK); 10655 break; /* NOTREACHED */ 10656 case CTL_SER_EXTENT: 10657 return (ctl_extent_check(pending_io, ooa_io)); 10658 break; /* NOTREACHED */ 10659 case CTL_SER_PASS: 10660 return (CTL_ACTION_PASS); 10661 break; /* NOTREACHED */ 10662 case CTL_SER_SKIP: 10663 return (CTL_ACTION_SKIP); 10664 break; 10665 default: 10666 panic("invalid serialization value %d", 10667 serialize_row[pending_entry->seridx]); 10668 break; /* NOTREACHED */ 10669 } 10670 10671 return (CTL_ACTION_ERROR); 10672} 10673 10674/* 10675 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10676 * Assumptions: 10677 * - pending_io is generally either incoming, or on the blocked queue 10678 * - starting I/O is the I/O we want to start the check with. 10679 */ 10680static ctl_action 10681ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10682 union ctl_io *starting_io) 10683{ 10684 union ctl_io *ooa_io; 10685 ctl_action action; 10686 10687 mtx_assert(&lun->lun_lock, MA_OWNED); 10688 10689 /* 10690 * Run back along the OOA queue, starting with the current 10691 * blocked I/O and going through every I/O before it on the 10692 * queue. If starting_io is NULL, we'll just end up returning 10693 * CTL_ACTION_PASS. 10694 */ 10695 for (ooa_io = starting_io; ooa_io != NULL; 10696 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10697 ooa_links)){ 10698 10699 /* 10700 * This routine just checks to see whether 10701 * cur_blocked is blocked by ooa_io, which is ahead 10702 * of it in the queue. It doesn't queue/dequeue 10703 * cur_blocked. 10704 */ 10705 action = ctl_check_for_blockage(pending_io, ooa_io); 10706 switch (action) { 10707 case CTL_ACTION_BLOCK: 10708 case CTL_ACTION_OVERLAP: 10709 case CTL_ACTION_OVERLAP_TAG: 10710 case CTL_ACTION_SKIP: 10711 case CTL_ACTION_ERROR: 10712 return (action); 10713 break; /* NOTREACHED */ 10714 case CTL_ACTION_PASS: 10715 break; 10716 default: 10717 panic("invalid action %d", action); 10718 break; /* NOTREACHED */ 10719 } 10720 } 10721 10722 return (CTL_ACTION_PASS); 10723} 10724 10725/* 10726 * Assumptions: 10727 * - An I/O has just completed, and has been removed from the per-LUN OOA 10728 * queue, so some items on the blocked queue may now be unblocked. 10729 */ 10730static int 10731ctl_check_blocked(struct ctl_lun *lun) 10732{ 10733 union ctl_io *cur_blocked, *next_blocked; 10734 10735 mtx_assert(&lun->lun_lock, MA_OWNED); 10736 10737 /* 10738 * Run forward from the head of the blocked queue, checking each 10739 * entry against the I/Os prior to it on the OOA queue to see if 10740 * there is still any blockage. 10741 * 10742 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10743 * with our removing a variable on it while it is traversing the 10744 * list. 10745 */ 10746 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10747 cur_blocked != NULL; cur_blocked = next_blocked) { 10748 union ctl_io *prev_ooa; 10749 ctl_action action; 10750 10751 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10752 blocked_links); 10753 10754 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10755 ctl_ooaq, ooa_links); 10756 10757 /* 10758 * If cur_blocked happens to be the first item in the OOA 10759 * queue now, prev_ooa will be NULL, and the action 10760 * returned will just be CTL_ACTION_PASS. 10761 */ 10762 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10763 10764 switch (action) { 10765 case CTL_ACTION_BLOCK: 10766 /* Nothing to do here, still blocked */ 10767 break; 10768 case CTL_ACTION_OVERLAP: 10769 case CTL_ACTION_OVERLAP_TAG: 10770 /* 10771 * This shouldn't happen! In theory we've already 10772 * checked this command for overlap... 10773 */ 10774 break; 10775 case CTL_ACTION_PASS: 10776 case CTL_ACTION_SKIP: { 10777 struct ctl_softc *softc; 10778 const struct ctl_cmd_entry *entry; 10779 uint32_t initidx; 10780 int isc_retval; 10781 10782 /* 10783 * The skip case shouldn't happen, this transaction 10784 * should have never made it onto the blocked queue. 10785 */ 10786 /* 10787 * This I/O is no longer blocked, we can remove it 10788 * from the blocked queue. Since this is a TAILQ 10789 * (doubly linked list), we can do O(1) removals 10790 * from any place on the list. 10791 */ 10792 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10793 blocked_links); 10794 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10795 10796 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10797 /* 10798 * Need to send IO back to original side to 10799 * run 10800 */ 10801 union ctl_ha_msg msg_info; 10802 10803 msg_info.hdr.original_sc = 10804 cur_blocked->io_hdr.original_sc; 10805 msg_info.hdr.serializing_sc = cur_blocked; 10806 msg_info.hdr.msg_type = CTL_MSG_R2R; 10807 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10808 &msg_info, sizeof(msg_info), 0)) > 10809 CTL_HA_STATUS_SUCCESS) { 10810 printf("CTL:Check Blocked error from " 10811 "ctl_ha_msg_send %d\n", 10812 isc_retval); 10813 } 10814 break; 10815 } 10816 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10817 softc = control_softc; 10818 10819 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10820 10821 /* 10822 * Check this I/O for LUN state changes that may 10823 * have happened while this command was blocked. 10824 * The LUN state may have been changed by a command 10825 * ahead of us in the queue, so we need to re-check 10826 * for any states that can be caused by SCSI 10827 * commands. 10828 */ 10829 if (ctl_scsiio_lun_check(softc, lun, entry, 10830 &cur_blocked->scsiio) == 0) { 10831 cur_blocked->io_hdr.flags |= 10832 CTL_FLAG_IS_WAS_ON_RTR; 10833 ctl_enqueue_rtr(cur_blocked); 10834 } else 10835 ctl_done(cur_blocked); 10836 break; 10837 } 10838 default: 10839 /* 10840 * This probably shouldn't happen -- we shouldn't 10841 * get CTL_ACTION_ERROR, or anything else. 10842 */ 10843 break; 10844 } 10845 } 10846 10847 return (CTL_RETVAL_COMPLETE); 10848} 10849 10850/* 10851 * This routine (with one exception) checks LUN flags that can be set by 10852 * commands ahead of us in the OOA queue. These flags have to be checked 10853 * when a command initially comes in, and when we pull a command off the 10854 * blocked queue and are preparing to execute it. The reason we have to 10855 * check these flags for commands on the blocked queue is that the LUN 10856 * state may have been changed by a command ahead of us while we're on the 10857 * blocked queue. 10858 * 10859 * Ordering is somewhat important with these checks, so please pay 10860 * careful attention to the placement of any new checks. 10861 */ 10862static int 10863ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 10864 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10865{ 10866 int retval; 10867 10868 retval = 0; 10869 10870 mtx_assert(&lun->lun_lock, MA_OWNED); 10871 10872 /* 10873 * If this shelf is a secondary shelf controller, we have to reject 10874 * any media access commands. 10875 */ 10876#if 0 10877 /* No longer needed for HA */ 10878 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 10879 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 10880 ctl_set_lun_standby(ctsio); 10881 retval = 1; 10882 goto bailout; 10883 } 10884#endif 10885 10886 /* 10887 * Check for a reservation conflict. If this command isn't allowed 10888 * even on reserved LUNs, and if this initiator isn't the one who 10889 * reserved us, reject the command with a reservation conflict. 10890 */ 10891 if ((lun->flags & CTL_LUN_RESERVED) 10892 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10893 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 10894 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 10895 || (ctsio->io_hdr.nexus.targ_target.id != 10896 lun->rsv_nexus.targ_target.id)) { 10897 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10898 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10899 retval = 1; 10900 goto bailout; 10901 } 10902 } 10903 10904 if ( (lun->flags & CTL_LUN_PR_RESERVED) 10905 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 10906 uint32_t residx; 10907 10908 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 10909 /* 10910 * if we aren't registered or it's a res holder type 10911 * reservation and this isn't the res holder then set a 10912 * conflict. 10913 * NOTE: Commands which might be allowed on write exclusive 10914 * type reservations are checked in the particular command 10915 * for a conflict. Read and SSU are the only ones. 10916 */ 10917 if (!lun->per_res[residx].registered 10918 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10919 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10920 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10921 retval = 1; 10922 goto bailout; 10923 } 10924 10925 } 10926 10927 if ((lun->flags & CTL_LUN_OFFLINE) 10928 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 10929 ctl_set_lun_not_ready(ctsio); 10930 retval = 1; 10931 goto bailout; 10932 } 10933 10934 /* 10935 * If the LUN is stopped, see if this particular command is allowed 10936 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 10937 */ 10938 if ((lun->flags & CTL_LUN_STOPPED) 10939 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10940 /* "Logical unit not ready, initializing cmd. required" */ 10941 ctl_set_lun_stopped(ctsio); 10942 retval = 1; 10943 goto bailout; 10944 } 10945 10946 if ((lun->flags & CTL_LUN_INOPERABLE) 10947 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10948 /* "Medium format corrupted" */ 10949 ctl_set_medium_format_corrupted(ctsio); 10950 retval = 1; 10951 goto bailout; 10952 } 10953 10954bailout: 10955 return (retval); 10956 10957} 10958 10959static void 10960ctl_failover_io(union ctl_io *io, int have_lock) 10961{ 10962 ctl_set_busy(&io->scsiio); 10963 ctl_done(io); 10964} 10965 10966static void 10967ctl_failover(void) 10968{ 10969 struct ctl_lun *lun; 10970 struct ctl_softc *ctl_softc; 10971 union ctl_io *next_io, *pending_io; 10972 union ctl_io *io; 10973 int lun_idx; 10974 int i; 10975 10976 ctl_softc = control_softc; 10977 10978 mtx_lock(&ctl_softc->ctl_lock); 10979 /* 10980 * Remove any cmds from the other SC from the rtr queue. These 10981 * will obviously only be for LUNs for which we're the primary. 10982 * We can't send status or get/send data for these commands. 10983 * Since they haven't been executed yet, we can just remove them. 10984 * We'll either abort them or delete them below, depending on 10985 * which HA mode we're in. 10986 */ 10987#ifdef notyet 10988 mtx_lock(&ctl_softc->queue_lock); 10989 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 10990 io != NULL; io = next_io) { 10991 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 10992 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10993 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 10994 ctl_io_hdr, links); 10995 } 10996 mtx_unlock(&ctl_softc->queue_lock); 10997#endif 10998 10999 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11000 lun = ctl_softc->ctl_luns[lun_idx]; 11001 if (lun==NULL) 11002 continue; 11003 11004 /* 11005 * Processor LUNs are primary on both sides. 11006 * XXX will this always be true? 11007 */ 11008 if (lun->be_lun->lun_type == T_PROCESSOR) 11009 continue; 11010 11011 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11012 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11013 printf("FAILOVER: primary lun %d\n", lun_idx); 11014 /* 11015 * Remove all commands from the other SC. First from the 11016 * blocked queue then from the ooa queue. Once we have 11017 * removed them. Call ctl_check_blocked to see if there 11018 * is anything that can run. 11019 */ 11020 for (io = (union ctl_io *)TAILQ_FIRST( 11021 &lun->blocked_queue); io != NULL; io = next_io) { 11022 11023 next_io = (union ctl_io *)TAILQ_NEXT( 11024 &io->io_hdr, blocked_links); 11025 11026 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11027 TAILQ_REMOVE(&lun->blocked_queue, 11028 &io->io_hdr,blocked_links); 11029 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11030 TAILQ_REMOVE(&lun->ooa_queue, 11031 &io->io_hdr, ooa_links); 11032 11033 ctl_free_io(io); 11034 } 11035 } 11036 11037 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11038 io != NULL; io = next_io) { 11039 11040 next_io = (union ctl_io *)TAILQ_NEXT( 11041 &io->io_hdr, ooa_links); 11042 11043 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11044 11045 TAILQ_REMOVE(&lun->ooa_queue, 11046 &io->io_hdr, 11047 ooa_links); 11048 11049 ctl_free_io(io); 11050 } 11051 } 11052 ctl_check_blocked(lun); 11053 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11054 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11055 11056 printf("FAILOVER: primary lun %d\n", lun_idx); 11057 /* 11058 * Abort all commands from the other SC. We can't 11059 * send status back for them now. These should get 11060 * cleaned up when they are completed or come out 11061 * for a datamove operation. 11062 */ 11063 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11064 io != NULL; io = next_io) { 11065 next_io = (union ctl_io *)TAILQ_NEXT( 11066 &io->io_hdr, ooa_links); 11067 11068 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11069 io->io_hdr.flags |= CTL_FLAG_ABORT; 11070 } 11071 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11072 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11073 11074 printf("FAILOVER: secondary lun %d\n", lun_idx); 11075 11076 lun->flags |= CTL_LUN_PRIMARY_SC; 11077 11078 /* 11079 * We send all I/O that was sent to this controller 11080 * and redirected to the other side back with 11081 * busy status, and have the initiator retry it. 11082 * Figuring out how much data has been transferred, 11083 * etc. and picking up where we left off would be 11084 * very tricky. 11085 * 11086 * XXX KDM need to remove I/O from the blocked 11087 * queue as well! 11088 */ 11089 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11090 &lun->ooa_queue); pending_io != NULL; 11091 pending_io = next_io) { 11092 11093 next_io = (union ctl_io *)TAILQ_NEXT( 11094 &pending_io->io_hdr, ooa_links); 11095 11096 pending_io->io_hdr.flags &= 11097 ~CTL_FLAG_SENT_2OTHER_SC; 11098 11099 if (pending_io->io_hdr.flags & 11100 CTL_FLAG_IO_ACTIVE) { 11101 pending_io->io_hdr.flags |= 11102 CTL_FLAG_FAILOVER; 11103 } else { 11104 ctl_set_busy(&pending_io->scsiio); 11105 ctl_done(pending_io); 11106 } 11107 } 11108 11109 /* 11110 * Build Unit Attention 11111 */ 11112 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11113 lun->pending_sense[i].ua_pending |= 11114 CTL_UA_ASYM_ACC_CHANGE; 11115 } 11116 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11117 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11118 printf("FAILOVER: secondary lun %d\n", lun_idx); 11119 /* 11120 * if the first io on the OOA is not on the RtR queue 11121 * add it. 11122 */ 11123 lun->flags |= CTL_LUN_PRIMARY_SC; 11124 11125 pending_io = (union ctl_io *)TAILQ_FIRST( 11126 &lun->ooa_queue); 11127 if (pending_io==NULL) { 11128 printf("Nothing on OOA queue\n"); 11129 continue; 11130 } 11131 11132 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11133 if ((pending_io->io_hdr.flags & 11134 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11135 pending_io->io_hdr.flags |= 11136 CTL_FLAG_IS_WAS_ON_RTR; 11137 ctl_enqueue_rtr(pending_io); 11138 } 11139#if 0 11140 else 11141 { 11142 printf("Tag 0x%04x is running\n", 11143 pending_io->scsiio.tag_num); 11144 } 11145#endif 11146 11147 next_io = (union ctl_io *)TAILQ_NEXT( 11148 &pending_io->io_hdr, ooa_links); 11149 for (pending_io=next_io; pending_io != NULL; 11150 pending_io = next_io) { 11151 pending_io->io_hdr.flags &= 11152 ~CTL_FLAG_SENT_2OTHER_SC; 11153 next_io = (union ctl_io *)TAILQ_NEXT( 11154 &pending_io->io_hdr, ooa_links); 11155 if (pending_io->io_hdr.flags & 11156 CTL_FLAG_IS_WAS_ON_RTR) { 11157#if 0 11158 printf("Tag 0x%04x is running\n", 11159 pending_io->scsiio.tag_num); 11160#endif 11161 continue; 11162 } 11163 11164 switch (ctl_check_ooa(lun, pending_io, 11165 (union ctl_io *)TAILQ_PREV( 11166 &pending_io->io_hdr, ctl_ooaq, 11167 ooa_links))) { 11168 11169 case CTL_ACTION_BLOCK: 11170 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11171 &pending_io->io_hdr, 11172 blocked_links); 11173 pending_io->io_hdr.flags |= 11174 CTL_FLAG_BLOCKED; 11175 break; 11176 case CTL_ACTION_PASS: 11177 case CTL_ACTION_SKIP: 11178 pending_io->io_hdr.flags |= 11179 CTL_FLAG_IS_WAS_ON_RTR; 11180 ctl_enqueue_rtr(pending_io); 11181 break; 11182 case CTL_ACTION_OVERLAP: 11183 ctl_set_overlapped_cmd( 11184 (struct ctl_scsiio *)pending_io); 11185 ctl_done(pending_io); 11186 break; 11187 case CTL_ACTION_OVERLAP_TAG: 11188 ctl_set_overlapped_tag( 11189 (struct ctl_scsiio *)pending_io, 11190 pending_io->scsiio.tag_num & 0xff); 11191 ctl_done(pending_io); 11192 break; 11193 case CTL_ACTION_ERROR: 11194 default: 11195 ctl_set_internal_failure( 11196 (struct ctl_scsiio *)pending_io, 11197 0, // sks_valid 11198 0); //retry count 11199 ctl_done(pending_io); 11200 break; 11201 } 11202 } 11203 11204 /* 11205 * Build Unit Attention 11206 */ 11207 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11208 lun->pending_sense[i].ua_pending |= 11209 CTL_UA_ASYM_ACC_CHANGE; 11210 } 11211 } else { 11212 panic("Unhandled HA mode failover, LUN flags = %#x, " 11213 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11214 } 11215 } 11216 ctl_pause_rtr = 0; 11217 mtx_unlock(&ctl_softc->ctl_lock); 11218} 11219 11220static int 11221ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11222{ 11223 struct ctl_lun *lun; 11224 const struct ctl_cmd_entry *entry; 11225 uint32_t initidx, targ_lun; 11226 int retval; 11227 11228 retval = 0; 11229 11230 lun = NULL; 11231 11232 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11233 if ((targ_lun < CTL_MAX_LUNS) 11234 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11235 lun = ctl_softc->ctl_luns[targ_lun]; 11236 /* 11237 * If the LUN is invalid, pretend that it doesn't exist. 11238 * It will go away as soon as all pending I/O has been 11239 * completed. 11240 */ 11241 if (lun->flags & CTL_LUN_DISABLED) { 11242 lun = NULL; 11243 } else { 11244 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11245 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11246 lun->be_lun; 11247 if (lun->be_lun->lun_type == T_PROCESSOR) { 11248 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11249 } 11250 11251 /* 11252 * Every I/O goes into the OOA queue for a 11253 * particular LUN, and stays there until completion. 11254 */ 11255 mtx_lock(&lun->lun_lock); 11256 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11257 ooa_links); 11258 } 11259 } else { 11260 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11261 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11262 } 11263 11264 /* Get command entry and return error if it is unsuppotyed. */ 11265 entry = ctl_validate_command(ctsio); 11266 if (entry == NULL) { 11267 if (lun) 11268 mtx_unlock(&lun->lun_lock); 11269 return (retval); 11270 } 11271 11272 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11273 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11274 11275 /* 11276 * Check to see whether we can send this command to LUNs that don't 11277 * exist. This should pretty much only be the case for inquiry 11278 * and request sense. Further checks, below, really require having 11279 * a LUN, so we can't really check the command anymore. Just put 11280 * it on the rtr queue. 11281 */ 11282 if (lun == NULL) { 11283 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11284 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11285 ctl_enqueue_rtr((union ctl_io *)ctsio); 11286 return (retval); 11287 } 11288 11289 ctl_set_unsupported_lun(ctsio); 11290 ctl_done((union ctl_io *)ctsio); 11291 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11292 return (retval); 11293 } else { 11294 /* 11295 * Make sure we support this particular command on this LUN. 11296 * e.g., we don't support writes to the control LUN. 11297 */ 11298 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11299 mtx_unlock(&lun->lun_lock); 11300 ctl_set_invalid_opcode(ctsio); 11301 ctl_done((union ctl_io *)ctsio); 11302 return (retval); 11303 } 11304 } 11305 11306 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11307 11308 /* 11309 * If we've got a request sense, it'll clear the contingent 11310 * allegiance condition. Otherwise, if we have a CA condition for 11311 * this initiator, clear it, because it sent down a command other 11312 * than request sense. 11313 */ 11314 if ((ctsio->cdb[0] != REQUEST_SENSE) 11315 && (ctl_is_set(lun->have_ca, initidx))) 11316 ctl_clear_mask(lun->have_ca, initidx); 11317 11318 /* 11319 * If the command has this flag set, it handles its own unit 11320 * attention reporting, we shouldn't do anything. Otherwise we 11321 * check for any pending unit attentions, and send them back to the 11322 * initiator. We only do this when a command initially comes in, 11323 * not when we pull it off the blocked queue. 11324 * 11325 * According to SAM-3, section 5.3.2, the order that things get 11326 * presented back to the host is basically unit attentions caused 11327 * by some sort of reset event, busy status, reservation conflicts 11328 * or task set full, and finally any other status. 11329 * 11330 * One issue here is that some of the unit attentions we report 11331 * don't fall into the "reset" category (e.g. "reported luns data 11332 * has changed"). So reporting it here, before the reservation 11333 * check, may be technically wrong. I guess the only thing to do 11334 * would be to check for and report the reset events here, and then 11335 * check for the other unit attention types after we check for a 11336 * reservation conflict. 11337 * 11338 * XXX KDM need to fix this 11339 */ 11340 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11341 ctl_ua_type ua_type; 11342 11343 ua_type = lun->pending_sense[initidx].ua_pending; 11344 if (ua_type != CTL_UA_NONE) { 11345 scsi_sense_data_type sense_format; 11346 11347 if (lun != NULL) 11348 sense_format = (lun->flags & 11349 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11350 SSD_TYPE_FIXED; 11351 else 11352 sense_format = SSD_TYPE_FIXED; 11353 11354 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11355 sense_format); 11356 if (ua_type != CTL_UA_NONE) { 11357 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11358 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11359 CTL_AUTOSENSE; 11360 ctsio->sense_len = SSD_FULL_SIZE; 11361 lun->pending_sense[initidx].ua_pending &= 11362 ~ua_type; 11363 mtx_unlock(&lun->lun_lock); 11364 ctl_done((union ctl_io *)ctsio); 11365 return (retval); 11366 } 11367 } 11368 } 11369 11370 11371 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11372 mtx_unlock(&lun->lun_lock); 11373 ctl_done((union ctl_io *)ctsio); 11374 return (retval); 11375 } 11376 11377 /* 11378 * XXX CHD this is where we want to send IO to other side if 11379 * this LUN is secondary on this SC. We will need to make a copy 11380 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11381 * the copy we send as FROM_OTHER. 11382 * We also need to stuff the address of the original IO so we can 11383 * find it easily. Something similar will need be done on the other 11384 * side so when we are done we can find the copy. 11385 */ 11386 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11387 union ctl_ha_msg msg_info; 11388 int isc_retval; 11389 11390 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11391 11392 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11393 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11394#if 0 11395 printf("1. ctsio %p\n", ctsio); 11396#endif 11397 msg_info.hdr.serializing_sc = NULL; 11398 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11399 msg_info.scsi.tag_num = ctsio->tag_num; 11400 msg_info.scsi.tag_type = ctsio->tag_type; 11401 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11402 11403 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11404 11405 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11406 (void *)&msg_info, sizeof(msg_info), 0)) > 11407 CTL_HA_STATUS_SUCCESS) { 11408 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11409 isc_retval); 11410 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11411 } else { 11412#if 0 11413 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11414#endif 11415 } 11416 11417 /* 11418 * XXX KDM this I/O is off the incoming queue, but hasn't 11419 * been inserted on any other queue. We may need to come 11420 * up with a holding queue while we wait for serialization 11421 * so that we have an idea of what we're waiting for from 11422 * the other side. 11423 */ 11424 mtx_unlock(&lun->lun_lock); 11425 return (retval); 11426 } 11427 11428 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11429 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11430 ctl_ooaq, ooa_links))) { 11431 case CTL_ACTION_BLOCK: 11432 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11433 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11434 blocked_links); 11435 mtx_unlock(&lun->lun_lock); 11436 return (retval); 11437 case CTL_ACTION_PASS: 11438 case CTL_ACTION_SKIP: 11439 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11440 mtx_unlock(&lun->lun_lock); 11441 ctl_enqueue_rtr((union ctl_io *)ctsio); 11442 break; 11443 case CTL_ACTION_OVERLAP: 11444 mtx_unlock(&lun->lun_lock); 11445 ctl_set_overlapped_cmd(ctsio); 11446 ctl_done((union ctl_io *)ctsio); 11447 break; 11448 case CTL_ACTION_OVERLAP_TAG: 11449 mtx_unlock(&lun->lun_lock); 11450 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11451 ctl_done((union ctl_io *)ctsio); 11452 break; 11453 case CTL_ACTION_ERROR: 11454 default: 11455 mtx_unlock(&lun->lun_lock); 11456 ctl_set_internal_failure(ctsio, 11457 /*sks_valid*/ 0, 11458 /*retry_count*/ 0); 11459 ctl_done((union ctl_io *)ctsio); 11460 break; 11461 } 11462 return (retval); 11463} 11464 11465const struct ctl_cmd_entry * 11466ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11467{ 11468 const struct ctl_cmd_entry *entry; 11469 int service_action; 11470 11471 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11472 if (entry->flags & CTL_CMD_FLAG_SA5) { 11473 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11474 entry = &((const struct ctl_cmd_entry *) 11475 entry->execute)[service_action]; 11476 } 11477 return (entry); 11478} 11479 11480const struct ctl_cmd_entry * 11481ctl_validate_command(struct ctl_scsiio *ctsio) 11482{ 11483 const struct ctl_cmd_entry *entry; 11484 int i; 11485 uint8_t diff; 11486 11487 entry = ctl_get_cmd_entry(ctsio); 11488 if (entry->execute == NULL) { 11489 ctl_set_invalid_opcode(ctsio); 11490 ctl_done((union ctl_io *)ctsio); 11491 return (NULL); 11492 } 11493 KASSERT(entry->length > 0, 11494 ("Not defined length for command 0x%02x/0x%02x", 11495 ctsio->cdb[0], ctsio->cdb[1])); 11496 for (i = 1; i < entry->length; i++) { 11497 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11498 if (diff == 0) 11499 continue; 11500 ctl_set_invalid_field(ctsio, 11501 /*sks_valid*/ 1, 11502 /*command*/ 1, 11503 /*field*/ i, 11504 /*bit_valid*/ 1, 11505 /*bit*/ fls(diff) - 1); 11506 ctl_done((union ctl_io *)ctsio); 11507 return (NULL); 11508 } 11509 return (entry); 11510} 11511 11512static int 11513ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11514{ 11515 11516 switch (lun_type) { 11517 case T_PROCESSOR: 11518 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11519 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11520 return (0); 11521 break; 11522 case T_DIRECT: 11523 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11524 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11525 return (0); 11526 break; 11527 default: 11528 return (0); 11529 } 11530 return (1); 11531} 11532 11533static int 11534ctl_scsiio(struct ctl_scsiio *ctsio) 11535{ 11536 int retval; 11537 const struct ctl_cmd_entry *entry; 11538 11539 retval = CTL_RETVAL_COMPLETE; 11540 11541 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11542 11543 entry = ctl_get_cmd_entry(ctsio); 11544 11545 /* 11546 * If this I/O has been aborted, just send it straight to 11547 * ctl_done() without executing it. 11548 */ 11549 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11550 ctl_done((union ctl_io *)ctsio); 11551 goto bailout; 11552 } 11553 11554 /* 11555 * All the checks should have been handled by ctl_scsiio_precheck(). 11556 * We should be clear now to just execute the I/O. 11557 */ 11558 retval = entry->execute(ctsio); 11559 11560bailout: 11561 return (retval); 11562} 11563 11564/* 11565 * Since we only implement one target right now, a bus reset simply resets 11566 * our single target. 11567 */ 11568static int 11569ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11570{ 11571 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11572} 11573 11574static int 11575ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11576 ctl_ua_type ua_type) 11577{ 11578 struct ctl_lun *lun; 11579 int retval; 11580 11581 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11582 union ctl_ha_msg msg_info; 11583 11584 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11585 msg_info.hdr.nexus = io->io_hdr.nexus; 11586 if (ua_type==CTL_UA_TARG_RESET) 11587 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11588 else 11589 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11590 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11591 msg_info.hdr.original_sc = NULL; 11592 msg_info.hdr.serializing_sc = NULL; 11593 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11594 (void *)&msg_info, sizeof(msg_info), 0)) { 11595 } 11596 } 11597 retval = 0; 11598 11599 mtx_lock(&ctl_softc->ctl_lock); 11600 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11601 retval += ctl_lun_reset(lun, io, ua_type); 11602 mtx_unlock(&ctl_softc->ctl_lock); 11603 11604 return (retval); 11605} 11606 11607/* 11608 * The LUN should always be set. The I/O is optional, and is used to 11609 * distinguish between I/Os sent by this initiator, and by other 11610 * initiators. We set unit attention for initiators other than this one. 11611 * SAM-3 is vague on this point. It does say that a unit attention should 11612 * be established for other initiators when a LUN is reset (see section 11613 * 5.7.3), but it doesn't specifically say that the unit attention should 11614 * be established for this particular initiator when a LUN is reset. Here 11615 * is the relevant text, from SAM-3 rev 8: 11616 * 11617 * 5.7.2 When a SCSI initiator port aborts its own tasks 11618 * 11619 * When a SCSI initiator port causes its own task(s) to be aborted, no 11620 * notification that the task(s) have been aborted shall be returned to 11621 * the SCSI initiator port other than the completion response for the 11622 * command or task management function action that caused the task(s) to 11623 * be aborted and notification(s) associated with related effects of the 11624 * action (e.g., a reset unit attention condition). 11625 * 11626 * XXX KDM for now, we're setting unit attention for all initiators. 11627 */ 11628static int 11629ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11630{ 11631 union ctl_io *xio; 11632#if 0 11633 uint32_t initindex; 11634#endif 11635 int i; 11636 11637 mtx_lock(&lun->lun_lock); 11638 /* 11639 * Run through the OOA queue and abort each I/O. 11640 */ 11641#if 0 11642 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11643#endif 11644 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11645 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11646 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11647 } 11648 11649 /* 11650 * This version sets unit attention for every 11651 */ 11652#if 0 11653 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11654 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11655 if (initindex == i) 11656 continue; 11657 lun->pending_sense[i].ua_pending |= ua_type; 11658 } 11659#endif 11660 11661 /* 11662 * A reset (any kind, really) clears reservations established with 11663 * RESERVE/RELEASE. It does not clear reservations established 11664 * with PERSISTENT RESERVE OUT, but we don't support that at the 11665 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11666 * reservations made with the RESERVE/RELEASE commands, because 11667 * those commands are obsolete in SPC-3. 11668 */ 11669 lun->flags &= ~CTL_LUN_RESERVED; 11670 11671 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11672 ctl_clear_mask(lun->have_ca, i); 11673 lun->pending_sense[i].ua_pending |= ua_type; 11674 } 11675 mtx_unlock(&lun->lun_lock); 11676 11677 return (0); 11678} 11679 11680static int 11681ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11682 int other_sc) 11683{ 11684 union ctl_io *xio; 11685 int found; 11686 11687 mtx_assert(&lun->lun_lock, MA_OWNED); 11688 11689 /* 11690 * Run through the OOA queue and attempt to find the given I/O. 11691 * The target port, initiator ID, tag type and tag number have to 11692 * match the values that we got from the initiator. If we have an 11693 * untagged command to abort, simply abort the first untagged command 11694 * we come to. We only allow one untagged command at a time of course. 11695 */ 11696 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11697 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11698 11699 if ((targ_port == xio->io_hdr.nexus.targ_port) && 11700 (init_id == xio->io_hdr.nexus.initid.id)) { 11701 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11702 found = 1; 11703 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11704 union ctl_ha_msg msg_info; 11705 11706 msg_info.hdr.nexus = xio->io_hdr.nexus; 11707 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11708 msg_info.task.tag_num = xio->scsiio.tag_num; 11709 msg_info.task.tag_type = xio->scsiio.tag_type; 11710 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11711 msg_info.hdr.original_sc = NULL; 11712 msg_info.hdr.serializing_sc = NULL; 11713 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11714 (void *)&msg_info, sizeof(msg_info), 0); 11715 } 11716 } 11717 } 11718 return (found); 11719} 11720 11721static int 11722ctl_abort_task_set(union ctl_io *io) 11723{ 11724 struct ctl_softc *softc = control_softc; 11725 struct ctl_lun *lun; 11726 uint32_t targ_lun; 11727 11728 /* 11729 * Look up the LUN. 11730 */ 11731 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11732 mtx_lock(&softc->ctl_lock); 11733 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11734 lun = softc->ctl_luns[targ_lun]; 11735 else { 11736 mtx_unlock(&softc->ctl_lock); 11737 return (1); 11738 } 11739 11740 mtx_lock(&lun->lun_lock); 11741 mtx_unlock(&softc->ctl_lock); 11742 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11743 io->io_hdr.nexus.initid.id, 11744 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11745 mtx_unlock(&lun->lun_lock); 11746 return (0); 11747} 11748 11749static int 11750ctl_i_t_nexus_reset(union ctl_io *io) 11751{ 11752 struct ctl_softc *softc = control_softc; 11753 struct ctl_lun *lun; 11754 uint32_t initindex; 11755 11756 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11757 mtx_lock(&softc->ctl_lock); 11758 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11759 mtx_lock(&lun->lun_lock); 11760 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11761 io->io_hdr.nexus.initid.id, 11762 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11763 ctl_clear_mask(lun->have_ca, initindex); 11764 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS; 11765 mtx_unlock(&lun->lun_lock); 11766 } 11767 mtx_unlock(&softc->ctl_lock); 11768 return (0); 11769} 11770 11771static int 11772ctl_abort_task(union ctl_io *io) 11773{ 11774 union ctl_io *xio; 11775 struct ctl_lun *lun; 11776 struct ctl_softc *ctl_softc; 11777#if 0 11778 struct sbuf sb; 11779 char printbuf[128]; 11780#endif 11781 int found; 11782 uint32_t targ_lun; 11783 11784 ctl_softc = control_softc; 11785 found = 0; 11786 11787 /* 11788 * Look up the LUN. 11789 */ 11790 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11791 mtx_lock(&ctl_softc->ctl_lock); 11792 if ((targ_lun < CTL_MAX_LUNS) 11793 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11794 lun = ctl_softc->ctl_luns[targ_lun]; 11795 else { 11796 mtx_unlock(&ctl_softc->ctl_lock); 11797 goto bailout; 11798 } 11799 11800#if 0 11801 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11802 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11803#endif 11804 11805 mtx_lock(&lun->lun_lock); 11806 mtx_unlock(&ctl_softc->ctl_lock); 11807 /* 11808 * Run through the OOA queue and attempt to find the given I/O. 11809 * The target port, initiator ID, tag type and tag number have to 11810 * match the values that we got from the initiator. If we have an 11811 * untagged command to abort, simply abort the first untagged command 11812 * we come to. We only allow one untagged command at a time of course. 11813 */ 11814#if 0 11815 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11816#endif 11817 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11818 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11819#if 0 11820 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11821 11822 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11823 lun->lun, xio->scsiio.tag_num, 11824 xio->scsiio.tag_type, 11825 (xio->io_hdr.blocked_links.tqe_prev 11826 == NULL) ? "" : " BLOCKED", 11827 (xio->io_hdr.flags & 11828 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11829 (xio->io_hdr.flags & 11830 CTL_FLAG_ABORT) ? " ABORT" : "", 11831 (xio->io_hdr.flags & 11832 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11833 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11834 sbuf_finish(&sb); 11835 printf("%s\n", sbuf_data(&sb)); 11836#endif 11837 11838 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 11839 && (xio->io_hdr.nexus.initid.id == 11840 io->io_hdr.nexus.initid.id)) { 11841 /* 11842 * If the abort says that the task is untagged, the 11843 * task in the queue must be untagged. Otherwise, 11844 * we just check to see whether the tag numbers 11845 * match. This is because the QLogic firmware 11846 * doesn't pass back the tag type in an abort 11847 * request. 11848 */ 11849#if 0 11850 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11851 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11852 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 11853#endif 11854 /* 11855 * XXX KDM we've got problems with FC, because it 11856 * doesn't send down a tag type with aborts. So we 11857 * can only really go by the tag number... 11858 * This may cause problems with parallel SCSI. 11859 * Need to figure that out!! 11860 */ 11861 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11862 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11863 found = 1; 11864 if ((io->io_hdr.flags & 11865 CTL_FLAG_FROM_OTHER_SC) == 0 && 11866 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11867 union ctl_ha_msg msg_info; 11868 11869 io->io_hdr.flags |= 11870 CTL_FLAG_SENT_2OTHER_SC; 11871 msg_info.hdr.nexus = io->io_hdr.nexus; 11872 msg_info.task.task_action = 11873 CTL_TASK_ABORT_TASK; 11874 msg_info.task.tag_num = 11875 io->taskio.tag_num; 11876 msg_info.task.tag_type = 11877 io->taskio.tag_type; 11878 msg_info.hdr.msg_type = 11879 CTL_MSG_MANAGE_TASKS; 11880 msg_info.hdr.original_sc = NULL; 11881 msg_info.hdr.serializing_sc = NULL; 11882#if 0 11883 printf("Sent Abort to other side\n"); 11884#endif 11885 if (CTL_HA_STATUS_SUCCESS != 11886 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11887 (void *)&msg_info, 11888 sizeof(msg_info), 0)) { 11889 } 11890 } 11891#if 0 11892 printf("ctl_abort_task: found I/O to abort\n"); 11893#endif 11894 break; 11895 } 11896 } 11897 } 11898 mtx_unlock(&lun->lun_lock); 11899 11900bailout: 11901 11902 if (found == 0) { 11903 /* 11904 * This isn't really an error. It's entirely possible for 11905 * the abort and command completion to cross on the wire. 11906 * This is more of an informative/diagnostic error. 11907 */ 11908#if 0 11909 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11910 "%d:%d:%d:%d tag %d type %d\n", 11911 io->io_hdr.nexus.initid.id, 11912 io->io_hdr.nexus.targ_port, 11913 io->io_hdr.nexus.targ_target.id, 11914 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11915 io->taskio.tag_type); 11916#endif 11917 return (1); 11918 } else 11919 return (0); 11920} 11921 11922static void 11923ctl_run_task(union ctl_io *io) 11924{ 11925 struct ctl_softc *ctl_softc; 11926 int retval; 11927 const char *task_desc; 11928 11929 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11930 11931 ctl_softc = control_softc; 11932 retval = 0; 11933 11934 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11935 ("ctl_run_task: Unextected io_type %d\n", 11936 io->io_hdr.io_type)); 11937 11938 task_desc = ctl_scsi_task_string(&io->taskio); 11939 if (task_desc != NULL) { 11940#ifdef NEEDTOPORT 11941 csevent_log(CSC_CTL | CSC_SHELF_SW | 11942 CTL_TASK_REPORT, 11943 csevent_LogType_Trace, 11944 csevent_Severity_Information, 11945 csevent_AlertLevel_Green, 11946 csevent_FRU_Firmware, 11947 csevent_FRU_Unknown, 11948 "CTL: received task: %s",task_desc); 11949#endif 11950 } else { 11951#ifdef NEEDTOPORT 11952 csevent_log(CSC_CTL | CSC_SHELF_SW | 11953 CTL_TASK_REPORT, 11954 csevent_LogType_Trace, 11955 csevent_Severity_Information, 11956 csevent_AlertLevel_Green, 11957 csevent_FRU_Firmware, 11958 csevent_FRU_Unknown, 11959 "CTL: received unknown task " 11960 "type: %d (%#x)", 11961 io->taskio.task_action, 11962 io->taskio.task_action); 11963#endif 11964 } 11965 switch (io->taskio.task_action) { 11966 case CTL_TASK_ABORT_TASK: 11967 retval = ctl_abort_task(io); 11968 break; 11969 case CTL_TASK_ABORT_TASK_SET: 11970 retval = ctl_abort_task_set(io); 11971 break; 11972 case CTL_TASK_CLEAR_ACA: 11973 break; 11974 case CTL_TASK_CLEAR_TASK_SET: 11975 break; 11976 case CTL_TASK_I_T_NEXUS_RESET: 11977 retval = ctl_i_t_nexus_reset(io); 11978 break; 11979 case CTL_TASK_LUN_RESET: { 11980 struct ctl_lun *lun; 11981 uint32_t targ_lun; 11982 int retval; 11983 11984 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11985 mtx_lock(&ctl_softc->ctl_lock); 11986 if ((targ_lun < CTL_MAX_LUNS) 11987 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11988 lun = ctl_softc->ctl_luns[targ_lun]; 11989 else { 11990 mtx_unlock(&ctl_softc->ctl_lock); 11991 retval = 1; 11992 break; 11993 } 11994 11995 if (!(io->io_hdr.flags & 11996 CTL_FLAG_FROM_OTHER_SC)) { 11997 union ctl_ha_msg msg_info; 11998 11999 io->io_hdr.flags |= 12000 CTL_FLAG_SENT_2OTHER_SC; 12001 msg_info.hdr.msg_type = 12002 CTL_MSG_MANAGE_TASKS; 12003 msg_info.hdr.nexus = io->io_hdr.nexus; 12004 msg_info.task.task_action = 12005 CTL_TASK_LUN_RESET; 12006 msg_info.hdr.original_sc = NULL; 12007 msg_info.hdr.serializing_sc = NULL; 12008 if (CTL_HA_STATUS_SUCCESS != 12009 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12010 (void *)&msg_info, 12011 sizeof(msg_info), 0)) { 12012 } 12013 } 12014 12015 retval = ctl_lun_reset(lun, io, 12016 CTL_UA_LUN_RESET); 12017 mtx_unlock(&ctl_softc->ctl_lock); 12018 break; 12019 } 12020 case CTL_TASK_TARGET_RESET: 12021 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12022 break; 12023 case CTL_TASK_BUS_RESET: 12024 retval = ctl_bus_reset(ctl_softc, io); 12025 break; 12026 case CTL_TASK_PORT_LOGIN: 12027 break; 12028 case CTL_TASK_PORT_LOGOUT: 12029 break; 12030 default: 12031 printf("ctl_run_task: got unknown task management event %d\n", 12032 io->taskio.task_action); 12033 break; 12034 } 12035 if (retval == 0) 12036 io->io_hdr.status = CTL_SUCCESS; 12037 else 12038 io->io_hdr.status = CTL_ERROR; 12039 12040 /* 12041 * This will queue this I/O to the done queue, but the 12042 * work thread won't be able to process it until we 12043 * return and the lock is released. 12044 */ 12045 ctl_done(io); 12046} 12047 12048/* 12049 * For HA operation. Handle commands that come in from the other 12050 * controller. 12051 */ 12052static void 12053ctl_handle_isc(union ctl_io *io) 12054{ 12055 int free_io; 12056 struct ctl_lun *lun; 12057 struct ctl_softc *ctl_softc; 12058 uint32_t targ_lun; 12059 12060 ctl_softc = control_softc; 12061 12062 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12063 lun = ctl_softc->ctl_luns[targ_lun]; 12064 12065 switch (io->io_hdr.msg_type) { 12066 case CTL_MSG_SERIALIZE: 12067 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12068 break; 12069 case CTL_MSG_R2R: { 12070 const struct ctl_cmd_entry *entry; 12071 12072 /* 12073 * This is only used in SER_ONLY mode. 12074 */ 12075 free_io = 0; 12076 entry = ctl_get_cmd_entry(&io->scsiio); 12077 mtx_lock(&lun->lun_lock); 12078 if (ctl_scsiio_lun_check(ctl_softc, lun, 12079 entry, (struct ctl_scsiio *)io) != 0) { 12080 mtx_unlock(&lun->lun_lock); 12081 ctl_done(io); 12082 break; 12083 } 12084 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12085 mtx_unlock(&lun->lun_lock); 12086 ctl_enqueue_rtr(io); 12087 break; 12088 } 12089 case CTL_MSG_FINISH_IO: 12090 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12091 free_io = 0; 12092 ctl_done(io); 12093 } else { 12094 free_io = 1; 12095 mtx_lock(&lun->lun_lock); 12096 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12097 ooa_links); 12098 ctl_check_blocked(lun); 12099 mtx_unlock(&lun->lun_lock); 12100 } 12101 break; 12102 case CTL_MSG_PERS_ACTION: 12103 ctl_hndl_per_res_out_on_other_sc( 12104 (union ctl_ha_msg *)&io->presio.pr_msg); 12105 free_io = 1; 12106 break; 12107 case CTL_MSG_BAD_JUJU: 12108 free_io = 0; 12109 ctl_done(io); 12110 break; 12111 case CTL_MSG_DATAMOVE: 12112 /* Only used in XFER mode */ 12113 free_io = 0; 12114 ctl_datamove_remote(io); 12115 break; 12116 case CTL_MSG_DATAMOVE_DONE: 12117 /* Only used in XFER mode */ 12118 free_io = 0; 12119 io->scsiio.be_move_done(io); 12120 break; 12121 default: 12122 free_io = 1; 12123 printf("%s: Invalid message type %d\n", 12124 __func__, io->io_hdr.msg_type); 12125 break; 12126 } 12127 if (free_io) 12128 ctl_free_io(io); 12129 12130} 12131 12132 12133/* 12134 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12135 * there is no match. 12136 */ 12137static ctl_lun_error_pattern 12138ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12139{ 12140 const struct ctl_cmd_entry *entry; 12141 ctl_lun_error_pattern filtered_pattern, pattern; 12142 12143 pattern = desc->error_pattern; 12144 12145 /* 12146 * XXX KDM we need more data passed into this function to match a 12147 * custom pattern, and we actually need to implement custom pattern 12148 * matching. 12149 */ 12150 if (pattern & CTL_LUN_PAT_CMD) 12151 return (CTL_LUN_PAT_CMD); 12152 12153 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12154 return (CTL_LUN_PAT_ANY); 12155 12156 entry = ctl_get_cmd_entry(ctsio); 12157 12158 filtered_pattern = entry->pattern & pattern; 12159 12160 /* 12161 * If the user requested specific flags in the pattern (e.g. 12162 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12163 * flags. 12164 * 12165 * If the user did not specify any flags, it doesn't matter whether 12166 * or not the command supports the flags. 12167 */ 12168 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12169 (pattern & ~CTL_LUN_PAT_MASK)) 12170 return (CTL_LUN_PAT_NONE); 12171 12172 /* 12173 * If the user asked for a range check, see if the requested LBA 12174 * range overlaps with this command's LBA range. 12175 */ 12176 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12177 uint64_t lba1; 12178 uint32_t len1; 12179 ctl_action action; 12180 int retval; 12181 12182 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12183 if (retval != 0) 12184 return (CTL_LUN_PAT_NONE); 12185 12186 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12187 desc->lba_range.len); 12188 /* 12189 * A "pass" means that the LBA ranges don't overlap, so 12190 * this doesn't match the user's range criteria. 12191 */ 12192 if (action == CTL_ACTION_PASS) 12193 return (CTL_LUN_PAT_NONE); 12194 } 12195 12196 return (filtered_pattern); 12197} 12198 12199static void 12200ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12201{ 12202 struct ctl_error_desc *desc, *desc2; 12203 12204 mtx_assert(&lun->lun_lock, MA_OWNED); 12205 12206 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12207 ctl_lun_error_pattern pattern; 12208 /* 12209 * Check to see whether this particular command matches 12210 * the pattern in the descriptor. 12211 */ 12212 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12213 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12214 continue; 12215 12216 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12217 case CTL_LUN_INJ_ABORTED: 12218 ctl_set_aborted(&io->scsiio); 12219 break; 12220 case CTL_LUN_INJ_MEDIUM_ERR: 12221 ctl_set_medium_error(&io->scsiio); 12222 break; 12223 case CTL_LUN_INJ_UA: 12224 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12225 * OCCURRED */ 12226 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12227 break; 12228 case CTL_LUN_INJ_CUSTOM: 12229 /* 12230 * We're assuming the user knows what he is doing. 12231 * Just copy the sense information without doing 12232 * checks. 12233 */ 12234 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12235 ctl_min(sizeof(desc->custom_sense), 12236 sizeof(io->scsiio.sense_data))); 12237 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12238 io->scsiio.sense_len = SSD_FULL_SIZE; 12239 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12240 break; 12241 case CTL_LUN_INJ_NONE: 12242 default: 12243 /* 12244 * If this is an error injection type we don't know 12245 * about, clear the continuous flag (if it is set) 12246 * so it will get deleted below. 12247 */ 12248 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12249 break; 12250 } 12251 /* 12252 * By default, each error injection action is a one-shot 12253 */ 12254 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12255 continue; 12256 12257 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12258 12259 free(desc, M_CTL); 12260 } 12261} 12262 12263#ifdef CTL_IO_DELAY 12264static void 12265ctl_datamove_timer_wakeup(void *arg) 12266{ 12267 union ctl_io *io; 12268 12269 io = (union ctl_io *)arg; 12270 12271 ctl_datamove(io); 12272} 12273#endif /* CTL_IO_DELAY */ 12274 12275void 12276ctl_datamove(union ctl_io *io) 12277{ 12278 void (*fe_datamove)(union ctl_io *io); 12279 12280 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12281 12282 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12283 12284#ifdef CTL_TIME_IO 12285 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12286 char str[256]; 12287 char path_str[64]; 12288 struct sbuf sb; 12289 12290 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12291 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12292 12293 sbuf_cat(&sb, path_str); 12294 switch (io->io_hdr.io_type) { 12295 case CTL_IO_SCSI: 12296 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12297 sbuf_printf(&sb, "\n"); 12298 sbuf_cat(&sb, path_str); 12299 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12300 io->scsiio.tag_num, io->scsiio.tag_type); 12301 break; 12302 case CTL_IO_TASK: 12303 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12304 "Tag Type: %d\n", io->taskio.task_action, 12305 io->taskio.tag_num, io->taskio.tag_type); 12306 break; 12307 default: 12308 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12309 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12310 break; 12311 } 12312 sbuf_cat(&sb, path_str); 12313 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12314 (intmax_t)time_uptime - io->io_hdr.start_time); 12315 sbuf_finish(&sb); 12316 printf("%s", sbuf_data(&sb)); 12317 } 12318#endif /* CTL_TIME_IO */ 12319 12320#ifdef CTL_IO_DELAY 12321 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12322 struct ctl_lun *lun; 12323 12324 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12325 12326 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12327 } else { 12328 struct ctl_lun *lun; 12329 12330 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12331 if ((lun != NULL) 12332 && (lun->delay_info.datamove_delay > 0)) { 12333 struct callout *callout; 12334 12335 callout = (struct callout *)&io->io_hdr.timer_bytes; 12336 callout_init(callout, /*mpsafe*/ 1); 12337 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12338 callout_reset(callout, 12339 lun->delay_info.datamove_delay * hz, 12340 ctl_datamove_timer_wakeup, io); 12341 if (lun->delay_info.datamove_type == 12342 CTL_DELAY_TYPE_ONESHOT) 12343 lun->delay_info.datamove_delay = 0; 12344 return; 12345 } 12346 } 12347#endif 12348 12349 /* 12350 * This command has been aborted. Set the port status, so we fail 12351 * the data move. 12352 */ 12353 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12354 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12355 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12356 io->io_hdr.nexus.targ_port, 12357 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12358 io->io_hdr.nexus.targ_lun); 12359 io->io_hdr.status = CTL_CMD_ABORTED; 12360 io->io_hdr.port_status = 31337; 12361 /* 12362 * Note that the backend, in this case, will get the 12363 * callback in its context. In other cases it may get 12364 * called in the frontend's interrupt thread context. 12365 */ 12366 io->scsiio.be_move_done(io); 12367 return; 12368 } 12369 12370 /* 12371 * If we're in XFER mode and this I/O is from the other shelf 12372 * controller, we need to send the DMA to the other side to 12373 * actually transfer the data to/from the host. In serialize only 12374 * mode the transfer happens below CTL and ctl_datamove() is only 12375 * called on the machine that originally received the I/O. 12376 */ 12377 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12378 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12379 union ctl_ha_msg msg; 12380 uint32_t sg_entries_sent; 12381 int do_sg_copy; 12382 int i; 12383 12384 memset(&msg, 0, sizeof(msg)); 12385 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12386 msg.hdr.original_sc = io->io_hdr.original_sc; 12387 msg.hdr.serializing_sc = io; 12388 msg.hdr.nexus = io->io_hdr.nexus; 12389 msg.dt.flags = io->io_hdr.flags; 12390 /* 12391 * We convert everything into a S/G list here. We can't 12392 * pass by reference, only by value between controllers. 12393 * So we can't pass a pointer to the S/G list, only as many 12394 * S/G entries as we can fit in here. If it's possible for 12395 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12396 * then we need to break this up into multiple transfers. 12397 */ 12398 if (io->scsiio.kern_sg_entries == 0) { 12399 msg.dt.kern_sg_entries = 1; 12400 /* 12401 * If this is in cached memory, flush the cache 12402 * before we send the DMA request to the other 12403 * controller. We want to do this in either the 12404 * read or the write case. The read case is 12405 * straightforward. In the write case, we want to 12406 * make sure nothing is in the local cache that 12407 * could overwrite the DMAed data. 12408 */ 12409 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12410 /* 12411 * XXX KDM use bus_dmamap_sync() here. 12412 */ 12413 } 12414 12415 /* 12416 * Convert to a physical address if this is a 12417 * virtual address. 12418 */ 12419 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12420 msg.dt.sg_list[0].addr = 12421 io->scsiio.kern_data_ptr; 12422 } else { 12423 /* 12424 * XXX KDM use busdma here! 12425 */ 12426#if 0 12427 msg.dt.sg_list[0].addr = (void *) 12428 vtophys(io->scsiio.kern_data_ptr); 12429#endif 12430 } 12431 12432 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12433 do_sg_copy = 0; 12434 } else { 12435 struct ctl_sg_entry *sgl; 12436 12437 do_sg_copy = 1; 12438 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12439 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12440 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12441 /* 12442 * XXX KDM use bus_dmamap_sync() here. 12443 */ 12444 } 12445 } 12446 12447 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12448 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12449 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12450 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12451 msg.dt.sg_sequence = 0; 12452 12453 /* 12454 * Loop until we've sent all of the S/G entries. On the 12455 * other end, we'll recompose these S/G entries into one 12456 * contiguous list before passing it to the 12457 */ 12458 for (sg_entries_sent = 0; sg_entries_sent < 12459 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12460 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12461 sizeof(msg.dt.sg_list[0])), 12462 msg.dt.kern_sg_entries - sg_entries_sent); 12463 12464 if (do_sg_copy != 0) { 12465 struct ctl_sg_entry *sgl; 12466 int j; 12467 12468 sgl = (struct ctl_sg_entry *) 12469 io->scsiio.kern_data_ptr; 12470 /* 12471 * If this is in cached memory, flush the cache 12472 * before we send the DMA request to the other 12473 * controller. We want to do this in either 12474 * the * read or the write case. The read 12475 * case is straightforward. In the write 12476 * case, we want to make sure nothing is 12477 * in the local cache that could overwrite 12478 * the DMAed data. 12479 */ 12480 12481 for (i = sg_entries_sent, j = 0; 12482 i < msg.dt.cur_sg_entries; i++, j++) { 12483 if ((io->io_hdr.flags & 12484 CTL_FLAG_NO_DATASYNC) == 0) { 12485 /* 12486 * XXX KDM use bus_dmamap_sync() 12487 */ 12488 } 12489 if ((io->io_hdr.flags & 12490 CTL_FLAG_BUS_ADDR) == 0) { 12491 /* 12492 * XXX KDM use busdma. 12493 */ 12494#if 0 12495 msg.dt.sg_list[j].addr =(void *) 12496 vtophys(sgl[i].addr); 12497#endif 12498 } else { 12499 msg.dt.sg_list[j].addr = 12500 sgl[i].addr; 12501 } 12502 msg.dt.sg_list[j].len = sgl[i].len; 12503 } 12504 } 12505 12506 sg_entries_sent += msg.dt.cur_sg_entries; 12507 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12508 msg.dt.sg_last = 1; 12509 else 12510 msg.dt.sg_last = 0; 12511 12512 /* 12513 * XXX KDM drop and reacquire the lock here? 12514 */ 12515 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12516 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12517 /* 12518 * XXX do something here. 12519 */ 12520 } 12521 12522 msg.dt.sent_sg_entries = sg_entries_sent; 12523 } 12524 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12525 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12526 ctl_failover_io(io, /*have_lock*/ 0); 12527 12528 } else { 12529 12530 /* 12531 * Lookup the fe_datamove() function for this particular 12532 * front end. 12533 */ 12534 fe_datamove = 12535 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12536 12537 fe_datamove(io); 12538 } 12539} 12540 12541static void 12542ctl_send_datamove_done(union ctl_io *io, int have_lock) 12543{ 12544 union ctl_ha_msg msg; 12545 int isc_status; 12546 12547 memset(&msg, 0, sizeof(msg)); 12548 12549 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12550 msg.hdr.original_sc = io; 12551 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12552 msg.hdr.nexus = io->io_hdr.nexus; 12553 msg.hdr.status = io->io_hdr.status; 12554 msg.scsi.tag_num = io->scsiio.tag_num; 12555 msg.scsi.tag_type = io->scsiio.tag_type; 12556 msg.scsi.scsi_status = io->scsiio.scsi_status; 12557 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12558 sizeof(io->scsiio.sense_data)); 12559 msg.scsi.sense_len = io->scsiio.sense_len; 12560 msg.scsi.sense_residual = io->scsiio.sense_residual; 12561 msg.scsi.fetd_status = io->io_hdr.port_status; 12562 msg.scsi.residual = io->scsiio.residual; 12563 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12564 12565 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12566 ctl_failover_io(io, /*have_lock*/ have_lock); 12567 return; 12568 } 12569 12570 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12571 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12572 /* XXX do something if this fails */ 12573 } 12574 12575} 12576 12577/* 12578 * The DMA to the remote side is done, now we need to tell the other side 12579 * we're done so it can continue with its data movement. 12580 */ 12581static void 12582ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12583{ 12584 union ctl_io *io; 12585 12586 io = rq->context; 12587 12588 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12589 printf("%s: ISC DMA write failed with error %d", __func__, 12590 rq->ret); 12591 ctl_set_internal_failure(&io->scsiio, 12592 /*sks_valid*/ 1, 12593 /*retry_count*/ rq->ret); 12594 } 12595 12596 ctl_dt_req_free(rq); 12597 12598 /* 12599 * In this case, we had to malloc the memory locally. Free it. 12600 */ 12601 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12602 int i; 12603 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12604 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12605 } 12606 /* 12607 * The data is in local and remote memory, so now we need to send 12608 * status (good or back) back to the other side. 12609 */ 12610 ctl_send_datamove_done(io, /*have_lock*/ 0); 12611} 12612 12613/* 12614 * We've moved the data from the host/controller into local memory. Now we 12615 * need to push it over to the remote controller's memory. 12616 */ 12617static int 12618ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12619{ 12620 int retval; 12621 12622 retval = 0; 12623 12624 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12625 ctl_datamove_remote_write_cb); 12626 12627 return (retval); 12628} 12629 12630static void 12631ctl_datamove_remote_write(union ctl_io *io) 12632{ 12633 int retval; 12634 void (*fe_datamove)(union ctl_io *io); 12635 12636 /* 12637 * - Get the data from the host/HBA into local memory. 12638 * - DMA memory from the local controller to the remote controller. 12639 * - Send status back to the remote controller. 12640 */ 12641 12642 retval = ctl_datamove_remote_sgl_setup(io); 12643 if (retval != 0) 12644 return; 12645 12646 /* Switch the pointer over so the FETD knows what to do */ 12647 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12648 12649 /* 12650 * Use a custom move done callback, since we need to send completion 12651 * back to the other controller, not to the backend on this side. 12652 */ 12653 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12654 12655 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12656 12657 fe_datamove(io); 12658 12659 return; 12660 12661} 12662 12663static int 12664ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12665{ 12666#if 0 12667 char str[256]; 12668 char path_str[64]; 12669 struct sbuf sb; 12670#endif 12671 12672 /* 12673 * In this case, we had to malloc the memory locally. Free it. 12674 */ 12675 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12676 int i; 12677 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12678 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12679 } 12680 12681#if 0 12682 scsi_path_string(io, path_str, sizeof(path_str)); 12683 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12684 sbuf_cat(&sb, path_str); 12685 scsi_command_string(&io->scsiio, NULL, &sb); 12686 sbuf_printf(&sb, "\n"); 12687 sbuf_cat(&sb, path_str); 12688 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12689 io->scsiio.tag_num, io->scsiio.tag_type); 12690 sbuf_cat(&sb, path_str); 12691 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12692 io->io_hdr.flags, io->io_hdr.status); 12693 sbuf_finish(&sb); 12694 printk("%s", sbuf_data(&sb)); 12695#endif 12696 12697 12698 /* 12699 * The read is done, now we need to send status (good or bad) back 12700 * to the other side. 12701 */ 12702 ctl_send_datamove_done(io, /*have_lock*/ 0); 12703 12704 return (0); 12705} 12706 12707static void 12708ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12709{ 12710 union ctl_io *io; 12711 void (*fe_datamove)(union ctl_io *io); 12712 12713 io = rq->context; 12714 12715 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12716 printf("%s: ISC DMA read failed with error %d", __func__, 12717 rq->ret); 12718 ctl_set_internal_failure(&io->scsiio, 12719 /*sks_valid*/ 1, 12720 /*retry_count*/ rq->ret); 12721 } 12722 12723 ctl_dt_req_free(rq); 12724 12725 /* Switch the pointer over so the FETD knows what to do */ 12726 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12727 12728 /* 12729 * Use a custom move done callback, since we need to send completion 12730 * back to the other controller, not to the backend on this side. 12731 */ 12732 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12733 12734 /* XXX KDM add checks like the ones in ctl_datamove? */ 12735 12736 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12737 12738 fe_datamove(io); 12739} 12740 12741static int 12742ctl_datamove_remote_sgl_setup(union ctl_io *io) 12743{ 12744 struct ctl_sg_entry *local_sglist, *remote_sglist; 12745 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12746 struct ctl_softc *softc; 12747 int retval; 12748 int i; 12749 12750 retval = 0; 12751 softc = control_softc; 12752 12753 local_sglist = io->io_hdr.local_sglist; 12754 local_dma_sglist = io->io_hdr.local_dma_sglist; 12755 remote_sglist = io->io_hdr.remote_sglist; 12756 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12757 12758 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12759 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12760 local_sglist[i].len = remote_sglist[i].len; 12761 12762 /* 12763 * XXX Detect the situation where the RS-level I/O 12764 * redirector on the other side has already read the 12765 * data off of the AOR RS on this side, and 12766 * transferred it to remote (mirror) memory on the 12767 * other side. Since we already have the data in 12768 * memory here, we just need to use it. 12769 * 12770 * XXX KDM this can probably be removed once we 12771 * get the cache device code in and take the 12772 * current AOR implementation out. 12773 */ 12774#ifdef NEEDTOPORT 12775 if ((remote_sglist[i].addr >= 12776 (void *)vtophys(softc->mirr->addr)) 12777 && (remote_sglist[i].addr < 12778 ((void *)vtophys(softc->mirr->addr) + 12779 CacheMirrorOffset))) { 12780 local_sglist[i].addr = remote_sglist[i].addr - 12781 CacheMirrorOffset; 12782 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12783 CTL_FLAG_DATA_IN) 12784 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12785 } else { 12786 local_sglist[i].addr = remote_sglist[i].addr + 12787 CacheMirrorOffset; 12788 } 12789#endif 12790#if 0 12791 printf("%s: local %p, remote %p, len %d\n", 12792 __func__, local_sglist[i].addr, 12793 remote_sglist[i].addr, local_sglist[i].len); 12794#endif 12795 } 12796 } else { 12797 uint32_t len_to_go; 12798 12799 /* 12800 * In this case, we don't have automatically allocated 12801 * memory for this I/O on this controller. This typically 12802 * happens with internal CTL I/O -- e.g. inquiry, mode 12803 * sense, etc. Anything coming from RAIDCore will have 12804 * a mirror area available. 12805 */ 12806 len_to_go = io->scsiio.kern_data_len; 12807 12808 /* 12809 * Clear the no datasync flag, we have to use malloced 12810 * buffers. 12811 */ 12812 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12813 12814 /* 12815 * The difficult thing here is that the size of the various 12816 * S/G segments may be different than the size from the 12817 * remote controller. That'll make it harder when DMAing 12818 * the data back to the other side. 12819 */ 12820 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12821 sizeof(io->io_hdr.remote_sglist[0])) && 12822 (len_to_go > 0); i++) { 12823 local_sglist[i].len = ctl_min(len_to_go, 131072); 12824 CTL_SIZE_8B(local_dma_sglist[i].len, 12825 local_sglist[i].len); 12826 local_sglist[i].addr = 12827 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12828 12829 local_dma_sglist[i].addr = local_sglist[i].addr; 12830 12831 if (local_sglist[i].addr == NULL) { 12832 int j; 12833 12834 printf("malloc failed for %zd bytes!", 12835 local_dma_sglist[i].len); 12836 for (j = 0; j < i; j++) { 12837 free(local_sglist[j].addr, M_CTL); 12838 } 12839 ctl_set_internal_failure(&io->scsiio, 12840 /*sks_valid*/ 1, 12841 /*retry_count*/ 4857); 12842 retval = 1; 12843 goto bailout_error; 12844 12845 } 12846 /* XXX KDM do we need a sync here? */ 12847 12848 len_to_go -= local_sglist[i].len; 12849 } 12850 /* 12851 * Reset the number of S/G entries accordingly. The 12852 * original number of S/G entries is available in 12853 * rem_sg_entries. 12854 */ 12855 io->scsiio.kern_sg_entries = i; 12856 12857#if 0 12858 printf("%s: kern_sg_entries = %d\n", __func__, 12859 io->scsiio.kern_sg_entries); 12860 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12861 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 12862 local_sglist[i].addr, local_sglist[i].len, 12863 local_dma_sglist[i].len); 12864#endif 12865 } 12866 12867 12868 return (retval); 12869 12870bailout_error: 12871 12872 ctl_send_datamove_done(io, /*have_lock*/ 0); 12873 12874 return (retval); 12875} 12876 12877static int 12878ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12879 ctl_ha_dt_cb callback) 12880{ 12881 struct ctl_ha_dt_req *rq; 12882 struct ctl_sg_entry *remote_sglist, *local_sglist; 12883 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 12884 uint32_t local_used, remote_used, total_used; 12885 int retval; 12886 int i, j; 12887 12888 retval = 0; 12889 12890 rq = ctl_dt_req_alloc(); 12891 12892 /* 12893 * If we failed to allocate the request, and if the DMA didn't fail 12894 * anyway, set busy status. This is just a resource allocation 12895 * failure. 12896 */ 12897 if ((rq == NULL) 12898 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12899 ctl_set_busy(&io->scsiio); 12900 12901 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12902 12903 if (rq != NULL) 12904 ctl_dt_req_free(rq); 12905 12906 /* 12907 * The data move failed. We need to return status back 12908 * to the other controller. No point in trying to DMA 12909 * data to the remote controller. 12910 */ 12911 12912 ctl_send_datamove_done(io, /*have_lock*/ 0); 12913 12914 retval = 1; 12915 12916 goto bailout; 12917 } 12918 12919 local_sglist = io->io_hdr.local_sglist; 12920 local_dma_sglist = io->io_hdr.local_dma_sglist; 12921 remote_sglist = io->io_hdr.remote_sglist; 12922 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12923 local_used = 0; 12924 remote_used = 0; 12925 total_used = 0; 12926 12927 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 12928 rq->ret = CTL_HA_STATUS_SUCCESS; 12929 rq->context = io; 12930 callback(rq); 12931 goto bailout; 12932 } 12933 12934 /* 12935 * Pull/push the data over the wire from/to the other controller. 12936 * This takes into account the possibility that the local and 12937 * remote sglists may not be identical in terms of the size of 12938 * the elements and the number of elements. 12939 * 12940 * One fundamental assumption here is that the length allocated for 12941 * both the local and remote sglists is identical. Otherwise, we've 12942 * essentially got a coding error of some sort. 12943 */ 12944 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12945 int isc_ret; 12946 uint32_t cur_len, dma_length; 12947 uint8_t *tmp_ptr; 12948 12949 rq->id = CTL_HA_DATA_CTL; 12950 rq->command = command; 12951 rq->context = io; 12952 12953 /* 12954 * Both pointers should be aligned. But it is possible 12955 * that the allocation length is not. They should both 12956 * also have enough slack left over at the end, though, 12957 * to round up to the next 8 byte boundary. 12958 */ 12959 cur_len = ctl_min(local_sglist[i].len - local_used, 12960 remote_sglist[j].len - remote_used); 12961 12962 /* 12963 * In this case, we have a size issue and need to decrease 12964 * the size, except in the case where we actually have less 12965 * than 8 bytes left. In that case, we need to increase 12966 * the DMA length to get the last bit. 12967 */ 12968 if ((cur_len & 0x7) != 0) { 12969 if (cur_len > 0x7) { 12970 cur_len = cur_len - (cur_len & 0x7); 12971 dma_length = cur_len; 12972 } else { 12973 CTL_SIZE_8B(dma_length, cur_len); 12974 } 12975 12976 } else 12977 dma_length = cur_len; 12978 12979 /* 12980 * If we had to allocate memory for this I/O, instead of using 12981 * the non-cached mirror memory, we'll need to flush the cache 12982 * before trying to DMA to the other controller. 12983 * 12984 * We could end up doing this multiple times for the same 12985 * segment if we have a larger local segment than remote 12986 * segment. That shouldn't be an issue. 12987 */ 12988 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12989 /* 12990 * XXX KDM use bus_dmamap_sync() here. 12991 */ 12992 } 12993 12994 rq->size = dma_length; 12995 12996 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12997 tmp_ptr += local_used; 12998 12999 /* Use physical addresses when talking to ISC hardware */ 13000 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13001 /* XXX KDM use busdma */ 13002#if 0 13003 rq->local = vtophys(tmp_ptr); 13004#endif 13005 } else 13006 rq->local = tmp_ptr; 13007 13008 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13009 tmp_ptr += remote_used; 13010 rq->remote = tmp_ptr; 13011 13012 rq->callback = NULL; 13013 13014 local_used += cur_len; 13015 if (local_used >= local_sglist[i].len) { 13016 i++; 13017 local_used = 0; 13018 } 13019 13020 remote_used += cur_len; 13021 if (remote_used >= remote_sglist[j].len) { 13022 j++; 13023 remote_used = 0; 13024 } 13025 total_used += cur_len; 13026 13027 if (total_used >= io->scsiio.kern_data_len) 13028 rq->callback = callback; 13029 13030 if ((rq->size & 0x7) != 0) { 13031 printf("%s: warning: size %d is not on 8b boundary\n", 13032 __func__, rq->size); 13033 } 13034 if (((uintptr_t)rq->local & 0x7) != 0) { 13035 printf("%s: warning: local %p not on 8b boundary\n", 13036 __func__, rq->local); 13037 } 13038 if (((uintptr_t)rq->remote & 0x7) != 0) { 13039 printf("%s: warning: remote %p not on 8b boundary\n", 13040 __func__, rq->local); 13041 } 13042#if 0 13043 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13044 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13045 rq->local, rq->remote, rq->size); 13046#endif 13047 13048 isc_ret = ctl_dt_single(rq); 13049 if (isc_ret == CTL_HA_STATUS_WAIT) 13050 continue; 13051 13052 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13053 rq->ret = CTL_HA_STATUS_SUCCESS; 13054 } else { 13055 rq->ret = isc_ret; 13056 } 13057 callback(rq); 13058 goto bailout; 13059 } 13060 13061bailout: 13062 return (retval); 13063 13064} 13065 13066static void 13067ctl_datamove_remote_read(union ctl_io *io) 13068{ 13069 int retval; 13070 int i; 13071 13072 /* 13073 * This will send an error to the other controller in the case of a 13074 * failure. 13075 */ 13076 retval = ctl_datamove_remote_sgl_setup(io); 13077 if (retval != 0) 13078 return; 13079 13080 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13081 ctl_datamove_remote_read_cb); 13082 if ((retval != 0) 13083 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13084 /* 13085 * Make sure we free memory if there was an error.. The 13086 * ctl_datamove_remote_xfer() function will send the 13087 * datamove done message, or call the callback with an 13088 * error if there is a problem. 13089 */ 13090 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13091 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13092 } 13093 13094 return; 13095} 13096 13097/* 13098 * Process a datamove request from the other controller. This is used for 13099 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13100 * first. Once that is complete, the data gets DMAed into the remote 13101 * controller's memory. For reads, we DMA from the remote controller's 13102 * memory into our memory first, and then move it out to the FETD. 13103 */ 13104static void 13105ctl_datamove_remote(union ctl_io *io) 13106{ 13107 struct ctl_softc *softc; 13108 13109 softc = control_softc; 13110 13111 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13112 13113 /* 13114 * Note that we look for an aborted I/O here, but don't do some of 13115 * the other checks that ctl_datamove() normally does. We don't 13116 * need to run the task queue, because this I/O is on the ISC 13117 * queue, which is executed by the work thread after the task queue. 13118 * We don't need to run the datamove delay code, since that should 13119 * have been done if need be on the other controller. 13120 */ 13121 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13122 13123 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13124 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13125 io->io_hdr.nexus.targ_port, 13126 io->io_hdr.nexus.targ_target.id, 13127 io->io_hdr.nexus.targ_lun); 13128 io->io_hdr.status = CTL_CMD_ABORTED; 13129 io->io_hdr.port_status = 31338; 13130 13131 ctl_send_datamove_done(io, /*have_lock*/ 0); 13132 13133 return; 13134 } 13135 13136 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13137 ctl_datamove_remote_write(io); 13138 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13139 ctl_datamove_remote_read(io); 13140 } else { 13141 union ctl_ha_msg msg; 13142 struct scsi_sense_data *sense; 13143 uint8_t sks[3]; 13144 int retry_count; 13145 13146 memset(&msg, 0, sizeof(msg)); 13147 13148 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13149 msg.hdr.status = CTL_SCSI_ERROR; 13150 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13151 13152 retry_count = 4243; 13153 13154 sense = &msg.scsi.sense_data; 13155 sks[0] = SSD_SCS_VALID; 13156 sks[1] = (retry_count >> 8) & 0xff; 13157 sks[2] = retry_count & 0xff; 13158 13159 /* "Internal target failure" */ 13160 scsi_set_sense_data(sense, 13161 /*sense_format*/ SSD_TYPE_NONE, 13162 /*current_error*/ 1, 13163 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13164 /*asc*/ 0x44, 13165 /*ascq*/ 0x00, 13166 /*type*/ SSD_ELEM_SKS, 13167 /*size*/ sizeof(sks), 13168 /*data*/ sks, 13169 SSD_ELEM_NONE); 13170 13171 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13172 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13173 ctl_failover_io(io, /*have_lock*/ 1); 13174 return; 13175 } 13176 13177 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13178 CTL_HA_STATUS_SUCCESS) { 13179 /* XXX KDM what to do if this fails? */ 13180 } 13181 return; 13182 } 13183 13184} 13185 13186static int 13187ctl_process_done(union ctl_io *io) 13188{ 13189 struct ctl_lun *lun; 13190 struct ctl_softc *ctl_softc; 13191 void (*fe_done)(union ctl_io *io); 13192 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13193 13194 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13195 13196 fe_done = 13197 control_softc->ctl_ports[targ_port]->fe_done; 13198 13199#ifdef CTL_TIME_IO 13200 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13201 char str[256]; 13202 char path_str[64]; 13203 struct sbuf sb; 13204 13205 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13206 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13207 13208 sbuf_cat(&sb, path_str); 13209 switch (io->io_hdr.io_type) { 13210 case CTL_IO_SCSI: 13211 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13212 sbuf_printf(&sb, "\n"); 13213 sbuf_cat(&sb, path_str); 13214 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13215 io->scsiio.tag_num, io->scsiio.tag_type); 13216 break; 13217 case CTL_IO_TASK: 13218 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13219 "Tag Type: %d\n", io->taskio.task_action, 13220 io->taskio.tag_num, io->taskio.tag_type); 13221 break; 13222 default: 13223 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13224 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13225 break; 13226 } 13227 sbuf_cat(&sb, path_str); 13228 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13229 (intmax_t)time_uptime - io->io_hdr.start_time); 13230 sbuf_finish(&sb); 13231 printf("%s", sbuf_data(&sb)); 13232 } 13233#endif /* CTL_TIME_IO */ 13234 13235 switch (io->io_hdr.io_type) { 13236 case CTL_IO_SCSI: 13237 break; 13238 case CTL_IO_TASK: 13239 if (bootverbose || verbose > 0) 13240 ctl_io_error_print(io, NULL); 13241 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13242 ctl_free_io(io); 13243 else 13244 fe_done(io); 13245 return (CTL_RETVAL_COMPLETE); 13246 break; 13247 default: 13248 printf("ctl_process_done: invalid io type %d\n", 13249 io->io_hdr.io_type); 13250 panic("ctl_process_done: invalid io type %d\n", 13251 io->io_hdr.io_type); 13252 break; /* NOTREACHED */ 13253 } 13254 13255 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13256 if (lun == NULL) { 13257 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13258 io->io_hdr.nexus.targ_mapped_lun)); 13259 fe_done(io); 13260 goto bailout; 13261 } 13262 ctl_softc = lun->ctl_softc; 13263 13264 mtx_lock(&lun->lun_lock); 13265 13266 /* 13267 * Check to see if we have any errors to inject here. We only 13268 * inject errors for commands that don't already have errors set. 13269 */ 13270 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13271 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13272 ctl_inject_error(lun, io); 13273 13274 /* 13275 * XXX KDM how do we treat commands that aren't completed 13276 * successfully? 13277 * 13278 * XXX KDM should we also track I/O latency? 13279 */ 13280 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13281 io->io_hdr.io_type == CTL_IO_SCSI) { 13282#ifdef CTL_TIME_IO 13283 struct bintime cur_bt; 13284#endif 13285 int type; 13286 13287 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13288 CTL_FLAG_DATA_IN) 13289 type = CTL_STATS_READ; 13290 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13291 CTL_FLAG_DATA_OUT) 13292 type = CTL_STATS_WRITE; 13293 else 13294 type = CTL_STATS_NO_IO; 13295 13296 lun->stats.ports[targ_port].bytes[type] += 13297 io->scsiio.kern_total_len; 13298 lun->stats.ports[targ_port].operations[type]++; 13299#ifdef CTL_TIME_IO 13300 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13301 &io->io_hdr.dma_bt); 13302 lun->stats.ports[targ_port].num_dmas[type] += 13303 io->io_hdr.num_dmas; 13304 getbintime(&cur_bt); 13305 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13306 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13307#endif 13308 } 13309 13310 /* 13311 * Remove this from the OOA queue. 13312 */ 13313 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13314 13315 /* 13316 * Run through the blocked queue on this LUN and see if anything 13317 * has become unblocked, now that this transaction is done. 13318 */ 13319 ctl_check_blocked(lun); 13320 13321 /* 13322 * If the LUN has been invalidated, free it if there is nothing 13323 * left on its OOA queue. 13324 */ 13325 if ((lun->flags & CTL_LUN_INVALID) 13326 && TAILQ_EMPTY(&lun->ooa_queue)) { 13327 mtx_unlock(&lun->lun_lock); 13328 mtx_lock(&ctl_softc->ctl_lock); 13329 ctl_free_lun(lun); 13330 mtx_unlock(&ctl_softc->ctl_lock); 13331 } else 13332 mtx_unlock(&lun->lun_lock); 13333 13334 /* 13335 * If this command has been aborted, make sure we set the status 13336 * properly. The FETD is responsible for freeing the I/O and doing 13337 * whatever it needs to do to clean up its state. 13338 */ 13339 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13340 io->io_hdr.status = CTL_CMD_ABORTED; 13341 13342 /* 13343 * We print out status for every task management command. For SCSI 13344 * commands, we filter out any unit attention errors; they happen 13345 * on every boot, and would clutter up the log. Note: task 13346 * management commands aren't printed here, they are printed above, 13347 * since they should never even make it down here. 13348 */ 13349 switch (io->io_hdr.io_type) { 13350 case CTL_IO_SCSI: { 13351 int error_code, sense_key, asc, ascq; 13352 13353 sense_key = 0; 13354 13355 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13356 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13357 /* 13358 * Since this is just for printing, no need to 13359 * show errors here. 13360 */ 13361 scsi_extract_sense_len(&io->scsiio.sense_data, 13362 io->scsiio.sense_len, 13363 &error_code, 13364 &sense_key, 13365 &asc, 13366 &ascq, 13367 /*show_errors*/ 0); 13368 } 13369 13370 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13371 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13372 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13373 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13374 13375 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13376 ctl_softc->skipped_prints++; 13377 } else { 13378 uint32_t skipped_prints; 13379 13380 skipped_prints = ctl_softc->skipped_prints; 13381 13382 ctl_softc->skipped_prints = 0; 13383 ctl_softc->last_print_jiffies = time_uptime; 13384 13385 if (skipped_prints > 0) { 13386#ifdef NEEDTOPORT 13387 csevent_log(CSC_CTL | CSC_SHELF_SW | 13388 CTL_ERROR_REPORT, 13389 csevent_LogType_Trace, 13390 csevent_Severity_Information, 13391 csevent_AlertLevel_Green, 13392 csevent_FRU_Firmware, 13393 csevent_FRU_Unknown, 13394 "High CTL error volume, %d prints " 13395 "skipped", skipped_prints); 13396#endif 13397 } 13398 if (bootverbose || verbose > 0) 13399 ctl_io_error_print(io, NULL); 13400 } 13401 } 13402 break; 13403 } 13404 case CTL_IO_TASK: 13405 if (bootverbose || verbose > 0) 13406 ctl_io_error_print(io, NULL); 13407 break; 13408 default: 13409 break; 13410 } 13411 13412 /* 13413 * Tell the FETD or the other shelf controller we're done with this 13414 * command. Note that only SCSI commands get to this point. Task 13415 * management commands are completed above. 13416 * 13417 * We only send status to the other controller if we're in XFER 13418 * mode. In SER_ONLY mode, the I/O is done on the controller that 13419 * received the I/O (from CTL's perspective), and so the status is 13420 * generated there. 13421 * 13422 * XXX KDM if we hold the lock here, we could cause a deadlock 13423 * if the frontend comes back in in this context to queue 13424 * something. 13425 */ 13426 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13427 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13428 union ctl_ha_msg msg; 13429 13430 memset(&msg, 0, sizeof(msg)); 13431 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13432 msg.hdr.original_sc = io->io_hdr.original_sc; 13433 msg.hdr.nexus = io->io_hdr.nexus; 13434 msg.hdr.status = io->io_hdr.status; 13435 msg.scsi.scsi_status = io->scsiio.scsi_status; 13436 msg.scsi.tag_num = io->scsiio.tag_num; 13437 msg.scsi.tag_type = io->scsiio.tag_type; 13438 msg.scsi.sense_len = io->scsiio.sense_len; 13439 msg.scsi.sense_residual = io->scsiio.sense_residual; 13440 msg.scsi.residual = io->scsiio.residual; 13441 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13442 sizeof(io->scsiio.sense_data)); 13443 /* 13444 * We copy this whether or not this is an I/O-related 13445 * command. Otherwise, we'd have to go and check to see 13446 * whether it's a read/write command, and it really isn't 13447 * worth it. 13448 */ 13449 memcpy(&msg.scsi.lbalen, 13450 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13451 sizeof(msg.scsi.lbalen)); 13452 13453 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13454 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13455 /* XXX do something here */ 13456 } 13457 13458 ctl_free_io(io); 13459 } else 13460 fe_done(io); 13461 13462bailout: 13463 13464 return (CTL_RETVAL_COMPLETE); 13465} 13466 13467/* 13468 * Front end should call this if it doesn't do autosense. When the request 13469 * sense comes back in from the initiator, we'll dequeue this and send it. 13470 */ 13471int 13472ctl_queue_sense(union ctl_io *io) 13473{ 13474 struct ctl_lun *lun; 13475 struct ctl_softc *ctl_softc; 13476 uint32_t initidx, targ_lun; 13477 13478 ctl_softc = control_softc; 13479 13480 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13481 13482 /* 13483 * LUN lookup will likely move to the ctl_work_thread() once we 13484 * have our new queueing infrastructure (that doesn't put things on 13485 * a per-LUN queue initially). That is so that we can handle 13486 * things like an INQUIRY to a LUN that we don't have enabled. We 13487 * can't deal with that right now. 13488 */ 13489 mtx_lock(&ctl_softc->ctl_lock); 13490 13491 /* 13492 * If we don't have a LUN for this, just toss the sense 13493 * information. 13494 */ 13495 targ_lun = io->io_hdr.nexus.targ_lun; 13496 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13497 if ((targ_lun < CTL_MAX_LUNS) 13498 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13499 lun = ctl_softc->ctl_luns[targ_lun]; 13500 else 13501 goto bailout; 13502 13503 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13504 13505 mtx_lock(&lun->lun_lock); 13506 /* 13507 * Already have CA set for this LUN...toss the sense information. 13508 */ 13509 if (ctl_is_set(lun->have_ca, initidx)) { 13510 mtx_unlock(&lun->lun_lock); 13511 goto bailout; 13512 } 13513 13514 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13515 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13516 sizeof(io->scsiio.sense_data))); 13517 ctl_set_mask(lun->have_ca, initidx); 13518 mtx_unlock(&lun->lun_lock); 13519 13520bailout: 13521 mtx_unlock(&ctl_softc->ctl_lock); 13522 13523 ctl_free_io(io); 13524 13525 return (CTL_RETVAL_COMPLETE); 13526} 13527 13528/* 13529 * Primary command inlet from frontend ports. All SCSI and task I/O 13530 * requests must go through this function. 13531 */ 13532int 13533ctl_queue(union ctl_io *io) 13534{ 13535 struct ctl_softc *ctl_softc; 13536 13537 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13538 13539 ctl_softc = control_softc; 13540 13541#ifdef CTL_TIME_IO 13542 io->io_hdr.start_time = time_uptime; 13543 getbintime(&io->io_hdr.start_bt); 13544#endif /* CTL_TIME_IO */ 13545 13546 /* Map FE-specific LUN ID into global one. */ 13547 io->io_hdr.nexus.targ_mapped_lun = 13548 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13549 13550 switch (io->io_hdr.io_type) { 13551 case CTL_IO_SCSI: 13552 case CTL_IO_TASK: 13553 ctl_enqueue_incoming(io); 13554 break; 13555 default: 13556 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13557 return (EINVAL); 13558 } 13559 13560 return (CTL_RETVAL_COMPLETE); 13561} 13562 13563#ifdef CTL_IO_DELAY 13564static void 13565ctl_done_timer_wakeup(void *arg) 13566{ 13567 union ctl_io *io; 13568 13569 io = (union ctl_io *)arg; 13570 ctl_done(io); 13571} 13572#endif /* CTL_IO_DELAY */ 13573 13574void 13575ctl_done(union ctl_io *io) 13576{ 13577 struct ctl_softc *ctl_softc; 13578 13579 ctl_softc = control_softc; 13580 13581 /* 13582 * Enable this to catch duplicate completion issues. 13583 */ 13584#if 0 13585 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13586 printf("%s: type %d msg %d cdb %x iptl: " 13587 "%d:%d:%d:%d tag 0x%04x " 13588 "flag %#x status %x\n", 13589 __func__, 13590 io->io_hdr.io_type, 13591 io->io_hdr.msg_type, 13592 io->scsiio.cdb[0], 13593 io->io_hdr.nexus.initid.id, 13594 io->io_hdr.nexus.targ_port, 13595 io->io_hdr.nexus.targ_target.id, 13596 io->io_hdr.nexus.targ_lun, 13597 (io->io_hdr.io_type == 13598 CTL_IO_TASK) ? 13599 io->taskio.tag_num : 13600 io->scsiio.tag_num, 13601 io->io_hdr.flags, 13602 io->io_hdr.status); 13603 } else 13604 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13605#endif 13606 13607 /* 13608 * This is an internal copy of an I/O, and should not go through 13609 * the normal done processing logic. 13610 */ 13611 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13612 return; 13613 13614 /* 13615 * We need to send a msg to the serializing shelf to finish the IO 13616 * as well. We don't send a finish message to the other shelf if 13617 * this is a task management command. Task management commands 13618 * aren't serialized in the OOA queue, but rather just executed on 13619 * both shelf controllers for commands that originated on that 13620 * controller. 13621 */ 13622 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13623 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13624 union ctl_ha_msg msg_io; 13625 13626 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13627 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13628 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13629 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13630 } 13631 /* continue on to finish IO */ 13632 } 13633#ifdef CTL_IO_DELAY 13634 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13635 struct ctl_lun *lun; 13636 13637 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13638 13639 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13640 } else { 13641 struct ctl_lun *lun; 13642 13643 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13644 13645 if ((lun != NULL) 13646 && (lun->delay_info.done_delay > 0)) { 13647 struct callout *callout; 13648 13649 callout = (struct callout *)&io->io_hdr.timer_bytes; 13650 callout_init(callout, /*mpsafe*/ 1); 13651 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13652 callout_reset(callout, 13653 lun->delay_info.done_delay * hz, 13654 ctl_done_timer_wakeup, io); 13655 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13656 lun->delay_info.done_delay = 0; 13657 return; 13658 } 13659 } 13660#endif /* CTL_IO_DELAY */ 13661 13662 ctl_enqueue_done(io); 13663} 13664 13665int 13666ctl_isc(struct ctl_scsiio *ctsio) 13667{ 13668 struct ctl_lun *lun; 13669 int retval; 13670 13671 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13672 13673 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13674 13675 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13676 13677 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13678 13679 return (retval); 13680} 13681 13682 13683static void 13684ctl_work_thread(void *arg) 13685{ 13686 struct ctl_thread *thr = (struct ctl_thread *)arg; 13687 struct ctl_softc *softc = thr->ctl_softc; 13688 union ctl_io *io; 13689 int retval; 13690 13691 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13692 13693 for (;;) { 13694 retval = 0; 13695 13696 /* 13697 * We handle the queues in this order: 13698 * - ISC 13699 * - done queue (to free up resources, unblock other commands) 13700 * - RtR queue 13701 * - incoming queue 13702 * 13703 * If those queues are empty, we break out of the loop and 13704 * go to sleep. 13705 */ 13706 mtx_lock(&thr->queue_lock); 13707 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13708 if (io != NULL) { 13709 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13710 mtx_unlock(&thr->queue_lock); 13711 ctl_handle_isc(io); 13712 continue; 13713 } 13714 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13715 if (io != NULL) { 13716 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13717 /* clear any blocked commands, call fe_done */ 13718 mtx_unlock(&thr->queue_lock); 13719 retval = ctl_process_done(io); 13720 continue; 13721 } 13722 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13723 if (io != NULL) { 13724 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13725 mtx_unlock(&thr->queue_lock); 13726 if (io->io_hdr.io_type == CTL_IO_TASK) 13727 ctl_run_task(io); 13728 else 13729 ctl_scsiio_precheck(softc, &io->scsiio); 13730 continue; 13731 } 13732 if (!ctl_pause_rtr) { 13733 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13734 if (io != NULL) { 13735 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13736 mtx_unlock(&thr->queue_lock); 13737 retval = ctl_scsiio(&io->scsiio); 13738 if (retval != CTL_RETVAL_COMPLETE) 13739 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13740 continue; 13741 } 13742 } 13743 13744 /* Sleep until we have something to do. */ 13745 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13746 } 13747} 13748 13749static void 13750ctl_lun_thread(void *arg) 13751{ 13752 struct ctl_softc *softc = (struct ctl_softc *)arg; 13753 struct ctl_be_lun *be_lun; 13754 int retval; 13755 13756 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13757 13758 for (;;) { 13759 retval = 0; 13760 mtx_lock(&softc->ctl_lock); 13761 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13762 if (be_lun != NULL) { 13763 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13764 mtx_unlock(&softc->ctl_lock); 13765 ctl_create_lun(be_lun); 13766 continue; 13767 } 13768 13769 /* Sleep until we have something to do. */ 13770 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13771 PDROP | PRIBIO, "-", 0); 13772 } 13773} 13774 13775static void 13776ctl_enqueue_incoming(union ctl_io *io) 13777{ 13778 struct ctl_softc *softc = control_softc; 13779 struct ctl_thread *thr; 13780 u_int idx; 13781 13782 idx = (io->io_hdr.nexus.targ_port * 127 + 13783 io->io_hdr.nexus.initid.id) % worker_threads; 13784 thr = &softc->threads[idx]; 13785 mtx_lock(&thr->queue_lock); 13786 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13787 mtx_unlock(&thr->queue_lock); 13788 wakeup(thr); 13789} 13790 13791static void 13792ctl_enqueue_rtr(union ctl_io *io) 13793{ 13794 struct ctl_softc *softc = control_softc; 13795 struct ctl_thread *thr; 13796 13797 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13798 mtx_lock(&thr->queue_lock); 13799 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13800 mtx_unlock(&thr->queue_lock); 13801 wakeup(thr); 13802} 13803 13804static void 13805ctl_enqueue_done(union ctl_io *io) 13806{ 13807 struct ctl_softc *softc = control_softc; 13808 struct ctl_thread *thr; 13809 13810 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13811 mtx_lock(&thr->queue_lock); 13812 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13813 mtx_unlock(&thr->queue_lock); 13814 wakeup(thr); 13815} 13816 13817static void 13818ctl_enqueue_isc(union ctl_io *io) 13819{ 13820 struct ctl_softc *softc = control_softc; 13821 struct ctl_thread *thr; 13822 13823 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13824 mtx_lock(&thr->queue_lock); 13825 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13826 mtx_unlock(&thr->queue_lock); 13827 wakeup(thr); 13828} 13829 13830/* Initialization and failover */ 13831 13832void 13833ctl_init_isc_msg(void) 13834{ 13835 printf("CTL: Still calling this thing\n"); 13836} 13837 13838/* 13839 * Init component 13840 * Initializes component into configuration defined by bootMode 13841 * (see hasc-sv.c) 13842 * returns hasc_Status: 13843 * OK 13844 * ERROR - fatal error 13845 */ 13846static ctl_ha_comp_status 13847ctl_isc_init(struct ctl_ha_component *c) 13848{ 13849 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13850 13851 c->status = ret; 13852 return ret; 13853} 13854 13855/* Start component 13856 * Starts component in state requested. If component starts successfully, 13857 * it must set its own state to the requestrd state 13858 * When requested state is HASC_STATE_HA, the component may refine it 13859 * by adding _SLAVE or _MASTER flags. 13860 * Currently allowed state transitions are: 13861 * UNKNOWN->HA - initial startup 13862 * UNKNOWN->SINGLE - initial startup when no parter detected 13863 * HA->SINGLE - failover 13864 * returns ctl_ha_comp_status: 13865 * OK - component successfully started in requested state 13866 * FAILED - could not start the requested state, failover may 13867 * be possible 13868 * ERROR - fatal error detected, no future startup possible 13869 */ 13870static ctl_ha_comp_status 13871ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 13872{ 13873 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13874 13875 printf("%s: go\n", __func__); 13876 13877 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 13878 if (c->state == CTL_HA_STATE_UNKNOWN ) { 13879 ctl_is_single = 0; 13880 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 13881 != CTL_HA_STATUS_SUCCESS) { 13882 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 13883 ret = CTL_HA_COMP_STATUS_ERROR; 13884 } 13885 } else if (CTL_HA_STATE_IS_HA(c->state) 13886 && CTL_HA_STATE_IS_SINGLE(state)){ 13887 // HA->SINGLE transition 13888 ctl_failover(); 13889 ctl_is_single = 1; 13890 } else { 13891 printf("ctl_isc_start:Invalid state transition %X->%X\n", 13892 c->state, state); 13893 ret = CTL_HA_COMP_STATUS_ERROR; 13894 } 13895 if (CTL_HA_STATE_IS_SINGLE(state)) 13896 ctl_is_single = 1; 13897 13898 c->state = state; 13899 c->status = ret; 13900 return ret; 13901} 13902 13903/* 13904 * Quiesce component 13905 * The component must clear any error conditions (set status to OK) and 13906 * prepare itself to another Start call 13907 * returns ctl_ha_comp_status: 13908 * OK 13909 * ERROR 13910 */ 13911static ctl_ha_comp_status 13912ctl_isc_quiesce(struct ctl_ha_component *c) 13913{ 13914 int ret = CTL_HA_COMP_STATUS_OK; 13915 13916 ctl_pause_rtr = 1; 13917 c->status = ret; 13918 return ret; 13919} 13920 13921struct ctl_ha_component ctl_ha_component_ctlisc = 13922{ 13923 .name = "CTL ISC", 13924 .state = CTL_HA_STATE_UNKNOWN, 13925 .init = ctl_isc_init, 13926 .start = ctl_isc_start, 13927 .quiesce = ctl_isc_quiesce 13928}; 13929 13930/* 13931 * vim: ts=8 13932 */ 13933