ctl.c revision 271949
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: head/sys/cam/ctl/ctl.c 271949 2014-09-22 09:22:58Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ SCP_WCE | SCP_RCD, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277}; 278 279static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/SCP_QUEUE_ALG_MASK, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 316 &worker_threads, 1, "Number of worker threads"); 317static int verbose = 0; 318SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 319 &verbose, 0, "Show SCSI errors returned to initiator"); 320 321/* 322 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 323 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 324 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 325 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 326 */ 327#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 328 329static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 330 int param); 331static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 332static int ctl_init(void); 333void ctl_shutdown(void); 334static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 335static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 336static void ctl_ioctl_online(void *arg); 337static void ctl_ioctl_offline(void *arg); 338static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 339static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 340static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 341static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 342static int ctl_ioctl_submit_wait(union ctl_io *io); 343static void ctl_ioctl_datamove(union ctl_io *io); 344static void ctl_ioctl_done(union ctl_io *io); 345static void ctl_ioctl_hard_startstop_callback(void *arg, 346 struct cfi_metatask *metatask); 347static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 348static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 349 struct ctl_ooa *ooa_hdr, 350 struct ctl_ooa_entry *kern_entries); 351static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 352 struct thread *td); 353static uint32_t ctl_map_lun(int port_num, uint32_t lun); 354static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 355#ifdef unused 356static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 357 uint32_t targ_target, uint32_t targ_lun, 358 int can_wait); 359static void ctl_kfree_io(union ctl_io *io); 360#endif /* unused */ 361static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 362 struct ctl_be_lun *be_lun, struct ctl_id target_id); 363static int ctl_free_lun(struct ctl_lun *lun); 364static void ctl_create_lun(struct ctl_be_lun *be_lun); 365/** 366static void ctl_failover_change_pages(struct ctl_softc *softc, 367 struct ctl_scsiio *ctsio, int master); 368**/ 369 370static int ctl_do_mode_select(union ctl_io *io); 371static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 372 uint64_t res_key, uint64_t sa_res_key, 373 uint8_t type, uint32_t residx, 374 struct ctl_scsiio *ctsio, 375 struct scsi_per_res_out *cdb, 376 struct scsi_per_res_out_parms* param); 377static void ctl_pro_preempt_other(struct ctl_lun *lun, 378 union ctl_ha_msg *msg); 379static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 380static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 381static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 386 int alloc_len); 387static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 390static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 391static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 392static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 393static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 394static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 395static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 396 union ctl_io *pending_io, union ctl_io *ooa_io); 397static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 398 union ctl_io *starting_io); 399static int ctl_check_blocked(struct ctl_lun *lun); 400static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 401 struct ctl_lun *lun, 402 const struct ctl_cmd_entry *entry, 403 struct ctl_scsiio *ctsio); 404//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 405static void ctl_failover(void); 406static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 407 struct ctl_scsiio *ctsio); 408static int ctl_scsiio(struct ctl_scsiio *ctsio); 409 410static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 411static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 412 ctl_ua_type ua_type); 413static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_abort_task(union ctl_io *io); 416static int ctl_abort_task_set(union ctl_io *io); 417static int ctl_i_t_nexus_reset(union ctl_io *io); 418static void ctl_run_task(union ctl_io *io); 419#ifdef CTL_IO_DELAY 420static void ctl_datamove_timer_wakeup(void *arg); 421static void ctl_done_timer_wakeup(void *arg); 422#endif /* CTL_IO_DELAY */ 423 424static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 425static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 426static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 427static void ctl_datamove_remote_write(union ctl_io *io); 428static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 429static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 430static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 431static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 432 ctl_ha_dt_cb callback); 433static void ctl_datamove_remote_read(union ctl_io *io); 434static void ctl_datamove_remote(union ctl_io *io); 435static int ctl_process_done(union ctl_io *io); 436static void ctl_lun_thread(void *arg); 437static void ctl_work_thread(void *arg); 438static void ctl_enqueue_incoming(union ctl_io *io); 439static void ctl_enqueue_rtr(union ctl_io *io); 440static void ctl_enqueue_done(union ctl_io *io); 441static void ctl_enqueue_isc(union ctl_io *io); 442static const struct ctl_cmd_entry * 443 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 444static const struct ctl_cmd_entry * 445 ctl_validate_command(struct ctl_scsiio *ctsio); 446static int ctl_cmd_applicable(uint8_t lun_type, 447 const struct ctl_cmd_entry *entry); 448 449/* 450 * Load the serialization table. This isn't very pretty, but is probably 451 * the easiest way to do it. 452 */ 453#include "ctl_ser_table.c" 454 455/* 456 * We only need to define open, close and ioctl routines for this driver. 457 */ 458static struct cdevsw ctl_cdevsw = { 459 .d_version = D_VERSION, 460 .d_flags = 0, 461 .d_open = ctl_open, 462 .d_close = ctl_close, 463 .d_ioctl = ctl_ioctl, 464 .d_name = "ctl", 465}; 466 467 468MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 469MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 470 471static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 472 473static moduledata_t ctl_moduledata = { 474 "ctl", 475 ctl_module_event_handler, 476 NULL 477}; 478 479DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 480MODULE_VERSION(ctl, 1); 481 482static struct ctl_frontend ioctl_frontend = 483{ 484 .name = "ioctl", 485}; 486 487static void 488ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 489 union ctl_ha_msg *msg_info) 490{ 491 struct ctl_scsiio *ctsio; 492 493 if (msg_info->hdr.original_sc == NULL) { 494 printf("%s: original_sc == NULL!\n", __func__); 495 /* XXX KDM now what? */ 496 return; 497 } 498 499 ctsio = &msg_info->hdr.original_sc->scsiio; 500 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 501 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 502 ctsio->io_hdr.status = msg_info->hdr.status; 503 ctsio->scsi_status = msg_info->scsi.scsi_status; 504 ctsio->sense_len = msg_info->scsi.sense_len; 505 ctsio->sense_residual = msg_info->scsi.sense_residual; 506 ctsio->residual = msg_info->scsi.residual; 507 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 508 sizeof(ctsio->sense_data)); 509 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 510 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 511 ctl_enqueue_isc((union ctl_io *)ctsio); 512} 513 514static void 515ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 516 union ctl_ha_msg *msg_info) 517{ 518 struct ctl_scsiio *ctsio; 519 520 if (msg_info->hdr.serializing_sc == NULL) { 521 printf("%s: serializing_sc == NULL!\n", __func__); 522 /* XXX KDM now what? */ 523 return; 524 } 525 526 ctsio = &msg_info->hdr.serializing_sc->scsiio; 527#if 0 528 /* 529 * Attempt to catch the situation where an I/O has 530 * been freed, and we're using it again. 531 */ 532 if (ctsio->io_hdr.io_type == 0xff) { 533 union ctl_io *tmp_io; 534 tmp_io = (union ctl_io *)ctsio; 535 printf("%s: %p use after free!\n", __func__, 536 ctsio); 537 printf("%s: type %d msg %d cdb %x iptl: " 538 "%d:%d:%d:%d tag 0x%04x " 539 "flag %#x status %x\n", 540 __func__, 541 tmp_io->io_hdr.io_type, 542 tmp_io->io_hdr.msg_type, 543 tmp_io->scsiio.cdb[0], 544 tmp_io->io_hdr.nexus.initid.id, 545 tmp_io->io_hdr.nexus.targ_port, 546 tmp_io->io_hdr.nexus.targ_target.id, 547 tmp_io->io_hdr.nexus.targ_lun, 548 (tmp_io->io_hdr.io_type == 549 CTL_IO_TASK) ? 550 tmp_io->taskio.tag_num : 551 tmp_io->scsiio.tag_num, 552 tmp_io->io_hdr.flags, 553 tmp_io->io_hdr.status); 554 } 555#endif 556 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 557 ctl_enqueue_isc((union ctl_io *)ctsio); 558} 559 560/* 561 * ISC (Inter Shelf Communication) event handler. Events from the HA 562 * subsystem come in here. 563 */ 564static void 565ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 566{ 567 struct ctl_softc *ctl_softc; 568 union ctl_io *io; 569 struct ctl_prio *presio; 570 ctl_ha_status isc_status; 571 572 ctl_softc = control_softc; 573 io = NULL; 574 575 576#if 0 577 printf("CTL: Isc Msg event %d\n", event); 578#endif 579 if (event == CTL_HA_EVT_MSG_RECV) { 580 union ctl_ha_msg msg_info; 581 582 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 583 sizeof(msg_info), /*wait*/ 0); 584#if 0 585 printf("CTL: msg_type %d\n", msg_info.msg_type); 586#endif 587 if (isc_status != 0) { 588 printf("Error receiving message, status = %d\n", 589 isc_status); 590 return; 591 } 592 593 switch (msg_info.hdr.msg_type) { 594 case CTL_MSG_SERIALIZE: 595#if 0 596 printf("Serialize\n"); 597#endif 598 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 599 if (io == NULL) { 600 printf("ctl_isc_event_handler: can't allocate " 601 "ctl_io!\n"); 602 /* Bad Juju */ 603 /* Need to set busy and send msg back */ 604 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 605 msg_info.hdr.status = CTL_SCSI_ERROR; 606 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 607 msg_info.scsi.sense_len = 0; 608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 609 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 610 } 611 goto bailout; 612 } 613 ctl_zero_io(io); 614 // populate ctsio from msg_info 615 io->io_hdr.io_type = CTL_IO_SCSI; 616 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 617 io->io_hdr.original_sc = msg_info.hdr.original_sc; 618#if 0 619 printf("pOrig %x\n", (int)msg_info.original_sc); 620#endif 621 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 622 CTL_FLAG_IO_ACTIVE; 623 /* 624 * If we're in serialization-only mode, we don't 625 * want to go through full done processing. Thus 626 * the COPY flag. 627 * 628 * XXX KDM add another flag that is more specific. 629 */ 630 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 631 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 632 io->io_hdr.nexus = msg_info.hdr.nexus; 633#if 0 634 printf("targ %d, port %d, iid %d, lun %d\n", 635 io->io_hdr.nexus.targ_target.id, 636 io->io_hdr.nexus.targ_port, 637 io->io_hdr.nexus.initid.id, 638 io->io_hdr.nexus.targ_lun); 639#endif 640 io->scsiio.tag_num = msg_info.scsi.tag_num; 641 io->scsiio.tag_type = msg_info.scsi.tag_type; 642 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 643 CTL_MAX_CDBLEN); 644 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 645 const struct ctl_cmd_entry *entry; 646 647 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 649 io->io_hdr.flags |= 650 entry->flags & CTL_FLAG_DATA_MASK; 651 } 652 ctl_enqueue_isc(io); 653 break; 654 655 /* Performed on the Originating SC, XFER mode only */ 656 case CTL_MSG_DATAMOVE: { 657 struct ctl_sg_entry *sgl; 658 int i, j; 659 660 io = msg_info.hdr.original_sc; 661 if (io == NULL) { 662 printf("%s: original_sc == NULL!\n", __func__); 663 /* XXX KDM do something here */ 664 break; 665 } 666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 668 /* 669 * Keep track of this, we need to send it back over 670 * when the datamove is complete. 671 */ 672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 673 674 if (msg_info.dt.sg_sequence == 0) { 675 /* 676 * XXX KDM we use the preallocated S/G list 677 * here, but we'll need to change this to 678 * dynamic allocation if we need larger S/G 679 * lists. 680 */ 681 if (msg_info.dt.kern_sg_entries > 682 sizeof(io->io_hdr.remote_sglist) / 683 sizeof(io->io_hdr.remote_sglist[0])) { 684 printf("%s: number of S/G entries " 685 "needed %u > allocated num %zd\n", 686 __func__, 687 msg_info.dt.kern_sg_entries, 688 sizeof(io->io_hdr.remote_sglist)/ 689 sizeof(io->io_hdr.remote_sglist[0])); 690 691 /* 692 * XXX KDM send a message back to 693 * the other side to shut down the 694 * DMA. The error will come back 695 * through via the normal channel. 696 */ 697 break; 698 } 699 sgl = io->io_hdr.remote_sglist; 700 memset(sgl, 0, 701 sizeof(io->io_hdr.remote_sglist)); 702 703 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 704 705 io->scsiio.kern_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.rem_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.kern_data_len = 710 msg_info.dt.kern_data_len; 711 io->scsiio.kern_total_len = 712 msg_info.dt.kern_total_len; 713 io->scsiio.kern_data_resid = 714 msg_info.dt.kern_data_resid; 715 io->scsiio.kern_rel_offset = 716 msg_info.dt.kern_rel_offset; 717 /* 718 * Clear out per-DMA flags. 719 */ 720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 721 /* 722 * Add per-DMA flags that are set for this 723 * particular DMA request. 724 */ 725 io->io_hdr.flags |= msg_info.dt.flags & 726 CTL_FLAG_RDMA_MASK; 727 } else 728 sgl = (struct ctl_sg_entry *) 729 io->scsiio.kern_data_ptr; 730 731 for (i = msg_info.dt.sent_sg_entries, j = 0; 732 i < (msg_info.dt.sent_sg_entries + 733 msg_info.dt.cur_sg_entries); i++, j++) { 734 sgl[i].addr = msg_info.dt.sg_list[j].addr; 735 sgl[i].len = msg_info.dt.sg_list[j].len; 736 737#if 0 738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 739 __func__, 740 msg_info.dt.sg_list[j].addr, 741 msg_info.dt.sg_list[j].len, 742 sgl[i].addr, sgl[i].len, j, i); 743#endif 744 } 745#if 0 746 memcpy(&sgl[msg_info.dt.sent_sg_entries], 747 msg_info.dt.sg_list, 748 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 749#endif 750 751 /* 752 * If this is the last piece of the I/O, we've got 753 * the full S/G list. Queue processing in the thread. 754 * Otherwise wait for the next piece. 755 */ 756 if (msg_info.dt.sg_last != 0) 757 ctl_enqueue_isc(io); 758 break; 759 } 760 /* Performed on the Serializing (primary) SC, XFER mode only */ 761 case CTL_MSG_DATAMOVE_DONE: { 762 if (msg_info.hdr.serializing_sc == NULL) { 763 printf("%s: serializing_sc == NULL!\n", 764 __func__); 765 /* XXX KDM now what? */ 766 break; 767 } 768 /* 769 * We grab the sense information here in case 770 * there was a failure, so we can return status 771 * back to the initiator. 772 */ 773 io = msg_info.hdr.serializing_sc; 774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 775 io->io_hdr.status = msg_info.hdr.status; 776 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 777 io->scsiio.sense_len = msg_info.scsi.sense_len; 778 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 779 io->io_hdr.port_status = msg_info.scsi.fetd_status; 780 io->scsiio.residual = msg_info.scsi.residual; 781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 782 sizeof(io->scsiio.sense_data)); 783 ctl_enqueue_isc(io); 784 break; 785 } 786 787 /* Preformed on Originating SC, SER_ONLY mode */ 788 case CTL_MSG_R2R: 789 io = msg_info.hdr.original_sc; 790 if (io == NULL) { 791 printf("%s: Major Bummer\n", __func__); 792 return; 793 } else { 794#if 0 795 printf("pOrig %x\n",(int) ctsio); 796#endif 797 } 798 io->io_hdr.msg_type = CTL_MSG_R2R; 799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 800 ctl_enqueue_isc(io); 801 break; 802 803 /* 804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 805 * mode. 806 * Performed on the Originating (i.e. secondary) SC in XFER 807 * mode 808 */ 809 case CTL_MSG_FINISH_IO: 810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 811 ctl_isc_handler_finish_xfer(ctl_softc, 812 &msg_info); 813 else 814 ctl_isc_handler_finish_ser_only(ctl_softc, 815 &msg_info); 816 break; 817 818 /* Preformed on Originating SC */ 819 case CTL_MSG_BAD_JUJU: 820 io = msg_info.hdr.original_sc; 821 if (io == NULL) { 822 printf("%s: Bad JUJU!, original_sc is NULL!\n", 823 __func__); 824 break; 825 } 826 ctl_copy_sense_data(&msg_info, io); 827 /* 828 * IO should have already been cleaned up on other 829 * SC so clear this flag so we won't send a message 830 * back to finish the IO there. 831 */ 832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 834 835 /* io = msg_info.hdr.serializing_sc; */ 836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 837 ctl_enqueue_isc(io); 838 break; 839 840 /* Handle resets sent from the other side */ 841 case CTL_MSG_MANAGE_TASKS: { 842 struct ctl_taskio *taskio; 843 taskio = (struct ctl_taskio *)ctl_alloc_io( 844 (void *)ctl_softc->othersc_pool); 845 if (taskio == NULL) { 846 printf("ctl_isc_event_handler: can't allocate " 847 "ctl_io!\n"); 848 /* Bad Juju */ 849 /* should I just call the proper reset func 850 here??? */ 851 goto bailout; 852 } 853 ctl_zero_io((union ctl_io *)taskio); 854 taskio->io_hdr.io_type = CTL_IO_TASK; 855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 856 taskio->io_hdr.nexus = msg_info.hdr.nexus; 857 taskio->task_action = msg_info.task.task_action; 858 taskio->tag_num = msg_info.task.tag_num; 859 taskio->tag_type = msg_info.task.tag_type; 860#ifdef CTL_TIME_IO 861 taskio->io_hdr.start_time = time_uptime; 862 getbintime(&taskio->io_hdr.start_bt); 863#if 0 864 cs_prof_gettime(&taskio->io_hdr.start_ticks); 865#endif 866#endif /* CTL_TIME_IO */ 867 ctl_run_task((union ctl_io *)taskio); 868 break; 869 } 870 /* Persistent Reserve action which needs attention */ 871 case CTL_MSG_PERS_ACTION: 872 presio = (struct ctl_prio *)ctl_alloc_io( 873 (void *)ctl_softc->othersc_pool); 874 if (presio == NULL) { 875 printf("ctl_isc_event_handler: can't allocate " 876 "ctl_io!\n"); 877 /* Bad Juju */ 878 /* Need to set busy and send msg back */ 879 goto bailout; 880 } 881 ctl_zero_io((union ctl_io *)presio); 882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 883 presio->pr_msg = msg_info.pr; 884 ctl_enqueue_isc((union ctl_io *)presio); 885 break; 886 case CTL_MSG_SYNC_FE: 887 rcv_sync_msg = 1; 888 break; 889 case CTL_MSG_APS_LOCK: { 890 // It's quicker to execute this then to 891 // queue it. 892 struct ctl_lun *lun; 893 struct ctl_page_index *page_index; 894 struct copan_aps_subpage *current_sp; 895 uint32_t targ_lun; 896 897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 898 lun = ctl_softc->ctl_luns[targ_lun]; 899 mtx_lock(&lun->lun_lock); 900 page_index = &lun->mode_pages.index[index_to_aps_page]; 901 current_sp = (struct copan_aps_subpage *) 902 (page_index->page_data + 903 (page_index->page_len * CTL_PAGE_CURRENT)); 904 905 current_sp->lock_active = msg_info.aps.lock_flag; 906 mtx_unlock(&lun->lun_lock); 907 break; 908 } 909 default: 910 printf("How did I get here?\n"); 911 } 912 } else if (event == CTL_HA_EVT_MSG_SENT) { 913 if (param != CTL_HA_STATUS_SUCCESS) { 914 printf("Bad status from ctl_ha_msg_send status %d\n", 915 param); 916 } 917 return; 918 } else if (event == CTL_HA_EVT_DISCONNECT) { 919 printf("CTL: Got a disconnect from Isc\n"); 920 return; 921 } else { 922 printf("ctl_isc_event_handler: Unknown event %d\n", event); 923 return; 924 } 925 926bailout: 927 return; 928} 929 930static void 931ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 932{ 933 struct scsi_sense_data *sense; 934 935 sense = &dest->scsiio.sense_data; 936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 937 dest->scsiio.scsi_status = src->scsi.scsi_status; 938 dest->scsiio.sense_len = src->scsi.sense_len; 939 dest->io_hdr.status = src->hdr.status; 940} 941 942static int 943ctl_init(void) 944{ 945 struct ctl_softc *softc; 946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 947 struct ctl_port *port; 948 uint8_t sc_id =0; 949 int i, error, retval; 950 //int isc_retval; 951 952 retval = 0; 953 ctl_pause_rtr = 0; 954 rcv_sync_msg = 0; 955 956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 957 M_WAITOK | M_ZERO); 958 softc = control_softc; 959 960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 961 "cam/ctl"); 962 963 softc->dev->si_drv1 = softc; 964 965 /* 966 * By default, return a "bad LUN" peripheral qualifier for unknown 967 * LUNs. The user can override this default using the tunable or 968 * sysctl. See the comment in ctl_inquiry_std() for more details. 969 */ 970 softc->inquiry_pq_no_lun = 1; 971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 972 &softc->inquiry_pq_no_lun); 973 sysctl_ctx_init(&softc->sysctl_ctx); 974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 976 CTLFLAG_RD, 0, "CAM Target Layer"); 977 978 if (softc->sysctl_tree == NULL) { 979 printf("%s: unable to allocate sysctl tree\n", __func__); 980 destroy_dev(softc->dev); 981 free(control_softc, M_DEVBUF); 982 control_softc = NULL; 983 return (ENOMEM); 984 } 985 986 SYSCTL_ADD_INT(&softc->sysctl_ctx, 987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 988 "inquiry_pq_no_lun", CTLFLAG_RW, 989 &softc->inquiry_pq_no_lun, 0, 990 "Report no lun possible for invalid LUNs"); 991 992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 994 softc->open_count = 0; 995 996 /* 997 * Default to actually sending a SYNCHRONIZE CACHE command down to 998 * the drive. 999 */ 1000 softc->flags = CTL_FLAG_REAL_SYNC; 1001 1002 /* 1003 * In Copan's HA scheme, the "master" and "slave" roles are 1004 * figured out through the slot the controller is in. Although it 1005 * is an active/active system, someone has to be in charge. 1006 */ 1007#ifdef NEEDTOPORT 1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1009#endif 1010 1011 if (sc_id == 0) { 1012 softc->flags |= CTL_FLAG_MASTER_SHELF; 1013 persis_offset = 0; 1014 } else 1015 persis_offset = CTL_MAX_INITIATORS; 1016 1017 /* 1018 * XXX KDM need to figure out where we want to get our target ID 1019 * and WWID. Is it different on each port? 1020 */ 1021 softc->target.id = 0; 1022 softc->target.wwid[0] = 0x12345678; 1023 softc->target.wwid[1] = 0x87654321; 1024 STAILQ_INIT(&softc->lun_list); 1025 STAILQ_INIT(&softc->pending_lun_queue); 1026 STAILQ_INIT(&softc->fe_list); 1027 STAILQ_INIT(&softc->port_list); 1028 STAILQ_INIT(&softc->be_list); 1029 STAILQ_INIT(&softc->io_pools); 1030 ctl_tpc_init(softc); 1031 1032 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1033 &internal_pool)!= 0){ 1034 printf("ctl: can't allocate %d entry internal pool, " 1035 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1036 return (ENOMEM); 1037 } 1038 1039 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1040 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1041 printf("ctl: can't allocate %d entry emergency pool, " 1042 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1043 ctl_pool_free(internal_pool); 1044 return (ENOMEM); 1045 } 1046 1047 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1048 &other_pool) != 0) 1049 { 1050 printf("ctl: can't allocate %d entry other SC pool, " 1051 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1052 ctl_pool_free(internal_pool); 1053 ctl_pool_free(emergency_pool); 1054 return (ENOMEM); 1055 } 1056 1057 softc->internal_pool = internal_pool; 1058 softc->emergency_pool = emergency_pool; 1059 softc->othersc_pool = other_pool; 1060 1061 if (worker_threads <= 0) 1062 worker_threads = max(1, mp_ncpus / 4); 1063 if (worker_threads > CTL_MAX_THREADS) 1064 worker_threads = CTL_MAX_THREADS; 1065 1066 for (i = 0; i < worker_threads; i++) { 1067 struct ctl_thread *thr = &softc->threads[i]; 1068 1069 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1070 thr->ctl_softc = softc; 1071 STAILQ_INIT(&thr->incoming_queue); 1072 STAILQ_INIT(&thr->rtr_queue); 1073 STAILQ_INIT(&thr->done_queue); 1074 STAILQ_INIT(&thr->isc_queue); 1075 1076 error = kproc_kthread_add(ctl_work_thread, thr, 1077 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1078 if (error != 0) { 1079 printf("error creating CTL work thread!\n"); 1080 ctl_pool_free(internal_pool); 1081 ctl_pool_free(emergency_pool); 1082 ctl_pool_free(other_pool); 1083 return (error); 1084 } 1085 } 1086 error = kproc_kthread_add(ctl_lun_thread, softc, 1087 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1088 if (error != 0) { 1089 printf("error creating CTL lun thread!\n"); 1090 ctl_pool_free(internal_pool); 1091 ctl_pool_free(emergency_pool); 1092 ctl_pool_free(other_pool); 1093 return (error); 1094 } 1095 if (bootverbose) 1096 printf("ctl: CAM Target Layer loaded\n"); 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 ctl_tpc_shutdown(softc); 1179 mtx_destroy(&softc->pool_lock); 1180 mtx_destroy(&softc->ctl_lock); 1181 1182 destroy_dev(softc->dev); 1183 1184 sysctl_ctx_free(&softc->sysctl_ctx); 1185 1186 free(control_softc, M_DEVBUF); 1187 control_softc = NULL; 1188 1189 if (bootverbose) 1190 printf("ctl: CAM Target Layer unloaded\n"); 1191} 1192 1193static int 1194ctl_module_event_handler(module_t mod, int what, void *arg) 1195{ 1196 1197 switch (what) { 1198 case MOD_LOAD: 1199 return (ctl_init()); 1200 case MOD_UNLOAD: 1201 return (EBUSY); 1202 default: 1203 return (EOPNOTSUPP); 1204 } 1205} 1206 1207/* 1208 * XXX KDM should we do some access checks here? Bump a reference count to 1209 * prevent a CTL module from being unloaded while someone has it open? 1210 */ 1211static int 1212ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1213{ 1214 return (0); 1215} 1216 1217static int 1218ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1219{ 1220 return (0); 1221} 1222 1223int 1224ctl_port_enable(ctl_port_type port_type) 1225{ 1226 struct ctl_softc *softc; 1227 struct ctl_port *port; 1228 1229 if (ctl_is_single == 0) { 1230 union ctl_ha_msg msg_info; 1231 int isc_retval; 1232 1233#if 0 1234 printf("%s: HA mode, synchronizing frontend enable\n", 1235 __func__); 1236#endif 1237 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1238 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1239 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1240 printf("Sync msg send error retval %d\n", isc_retval); 1241 } 1242 if (!rcv_sync_msg) { 1243 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1244 sizeof(msg_info), 1); 1245 } 1246#if 0 1247 printf("CTL:Frontend Enable\n"); 1248 } else { 1249 printf("%s: single mode, skipping frontend synchronization\n", 1250 __func__); 1251#endif 1252 } 1253 1254 softc = control_softc; 1255 1256 STAILQ_FOREACH(port, &softc->port_list, links) { 1257 if (port_type & port->port_type) 1258 { 1259#if 0 1260 printf("port %d\n", port->targ_port); 1261#endif 1262 ctl_port_online(port); 1263 } 1264 } 1265 1266 return (0); 1267} 1268 1269int 1270ctl_port_disable(ctl_port_type port_type) 1271{ 1272 struct ctl_softc *softc; 1273 struct ctl_port *port; 1274 1275 softc = control_softc; 1276 1277 STAILQ_FOREACH(port, &softc->port_list, links) { 1278 if (port_type & port->port_type) 1279 ctl_port_offline(port); 1280 } 1281 1282 return (0); 1283} 1284 1285/* 1286 * Returns 0 for success, 1 for failure. 1287 * Currently the only failure mode is if there aren't enough entries 1288 * allocated. So, in case of a failure, look at num_entries_dropped, 1289 * reallocate and try again. 1290 */ 1291int 1292ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1293 int *num_entries_filled, int *num_entries_dropped, 1294 ctl_port_type port_type, int no_virtual) 1295{ 1296 struct ctl_softc *softc; 1297 struct ctl_port *port; 1298 int entries_dropped, entries_filled; 1299 int retval; 1300 int i; 1301 1302 softc = control_softc; 1303 1304 retval = 0; 1305 entries_filled = 0; 1306 entries_dropped = 0; 1307 1308 i = 0; 1309 mtx_lock(&softc->ctl_lock); 1310 STAILQ_FOREACH(port, &softc->port_list, links) { 1311 struct ctl_port_entry *entry; 1312 1313 if ((port->port_type & port_type) == 0) 1314 continue; 1315 1316 if ((no_virtual != 0) 1317 && (port->virtual_port != 0)) 1318 continue; 1319 1320 if (entries_filled >= num_entries_alloced) { 1321 entries_dropped++; 1322 continue; 1323 } 1324 entry = &entries[i]; 1325 1326 entry->port_type = port->port_type; 1327 strlcpy(entry->port_name, port->port_name, 1328 sizeof(entry->port_name)); 1329 entry->physical_port = port->physical_port; 1330 entry->virtual_port = port->virtual_port; 1331 entry->wwnn = port->wwnn; 1332 entry->wwpn = port->wwpn; 1333 1334 i++; 1335 entries_filled++; 1336 } 1337 1338 mtx_unlock(&softc->ctl_lock); 1339 1340 if (entries_dropped > 0) 1341 retval = 1; 1342 1343 *num_entries_dropped = entries_dropped; 1344 *num_entries_filled = entries_filled; 1345 1346 return (retval); 1347} 1348 1349static void 1350ctl_ioctl_online(void *arg) 1351{ 1352 struct ctl_ioctl_info *ioctl_info; 1353 1354 ioctl_info = (struct ctl_ioctl_info *)arg; 1355 1356 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1357} 1358 1359static void 1360ctl_ioctl_offline(void *arg) 1361{ 1362 struct ctl_ioctl_info *ioctl_info; 1363 1364 ioctl_info = (struct ctl_ioctl_info *)arg; 1365 1366 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1367} 1368 1369/* 1370 * Remove an initiator by port number and initiator ID. 1371 * Returns 0 for success, -1 for failure. 1372 */ 1373int 1374ctl_remove_initiator(struct ctl_port *port, int iid) 1375{ 1376 struct ctl_softc *softc = control_softc; 1377 1378 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1379 1380 if (iid > CTL_MAX_INIT_PER_PORT) { 1381 printf("%s: initiator ID %u > maximun %u!\n", 1382 __func__, iid, CTL_MAX_INIT_PER_PORT); 1383 return (-1); 1384 } 1385 1386 mtx_lock(&softc->ctl_lock); 1387 port->wwpn_iid[iid].in_use--; 1388 port->wwpn_iid[iid].last_use = time_uptime; 1389 mtx_unlock(&softc->ctl_lock); 1390 1391 return (0); 1392} 1393 1394/* 1395 * Add an initiator to the initiator map. 1396 * Returns iid for success, < 0 for failure. 1397 */ 1398int 1399ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1400{ 1401 struct ctl_softc *softc = control_softc; 1402 time_t best_time; 1403 int i, best; 1404 1405 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1406 1407 if (iid >= CTL_MAX_INIT_PER_PORT) { 1408 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1409 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1410 free(name, M_CTL); 1411 return (-1); 1412 } 1413 1414 mtx_lock(&softc->ctl_lock); 1415 1416 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1417 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1418 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1419 iid = i; 1420 break; 1421 } 1422 if (name != NULL && port->wwpn_iid[i].name != NULL && 1423 strcmp(name, port->wwpn_iid[i].name) == 0) { 1424 iid = i; 1425 break; 1426 } 1427 } 1428 } 1429 1430 if (iid < 0) { 1431 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1432 if (port->wwpn_iid[i].in_use == 0 && 1433 port->wwpn_iid[i].wwpn == 0 && 1434 port->wwpn_iid[i].name == NULL) { 1435 iid = i; 1436 break; 1437 } 1438 } 1439 } 1440 1441 if (iid < 0) { 1442 best = -1; 1443 best_time = INT32_MAX; 1444 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1445 if (port->wwpn_iid[i].in_use == 0) { 1446 if (port->wwpn_iid[i].last_use < best_time) { 1447 best = i; 1448 best_time = port->wwpn_iid[i].last_use; 1449 } 1450 } 1451 } 1452 iid = best; 1453 } 1454 1455 if (iid < 0) { 1456 mtx_unlock(&softc->ctl_lock); 1457 free(name, M_CTL); 1458 return (-2); 1459 } 1460 1461 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1462 /* 1463 * This is not an error yet. 1464 */ 1465 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1466#if 0 1467 printf("%s: port %d iid %u WWPN %#jx arrived" 1468 " again\n", __func__, port->targ_port, 1469 iid, (uintmax_t)wwpn); 1470#endif 1471 goto take; 1472 } 1473 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1474 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1475#if 0 1476 printf("%s: port %d iid %u name '%s' arrived" 1477 " again\n", __func__, port->targ_port, 1478 iid, name); 1479#endif 1480 goto take; 1481 } 1482 1483 /* 1484 * This is an error, but what do we do about it? The 1485 * driver is telling us we have a new WWPN for this 1486 * initiator ID, so we pretty much need to use it. 1487 */ 1488 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1489 " but WWPN %#jx '%s' is still at that address\n", 1490 __func__, port->targ_port, iid, wwpn, name, 1491 (uintmax_t)port->wwpn_iid[iid].wwpn, 1492 port->wwpn_iid[iid].name); 1493 1494 /* 1495 * XXX KDM clear have_ca and ua_pending on each LUN for 1496 * this initiator. 1497 */ 1498 } 1499take: 1500 free(port->wwpn_iid[iid].name, M_CTL); 1501 port->wwpn_iid[iid].name = name; 1502 port->wwpn_iid[iid].wwpn = wwpn; 1503 port->wwpn_iid[iid].in_use++; 1504 mtx_unlock(&softc->ctl_lock); 1505 1506 return (iid); 1507} 1508 1509static int 1510ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1511{ 1512 int len; 1513 1514 switch (port->port_type) { 1515 case CTL_PORT_FC: 1516 { 1517 struct scsi_transportid_fcp *id = 1518 (struct scsi_transportid_fcp *)buf; 1519 if (port->wwpn_iid[iid].wwpn == 0) 1520 return (0); 1521 memset(id, 0, sizeof(*id)); 1522 id->format_protocol = SCSI_PROTO_FC; 1523 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1524 return (sizeof(*id)); 1525 } 1526 case CTL_PORT_ISCSI: 1527 { 1528 struct scsi_transportid_iscsi_port *id = 1529 (struct scsi_transportid_iscsi_port *)buf; 1530 if (port->wwpn_iid[iid].name == NULL) 1531 return (0); 1532 memset(id, 0, 256); 1533 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1534 SCSI_PROTO_ISCSI; 1535 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1536 len = roundup2(min(len, 252), 4); 1537 scsi_ulto2b(len, id->additional_length); 1538 return (sizeof(*id) + len); 1539 } 1540 case CTL_PORT_SAS: 1541 { 1542 struct scsi_transportid_sas *id = 1543 (struct scsi_transportid_sas *)buf; 1544 if (port->wwpn_iid[iid].wwpn == 0) 1545 return (0); 1546 memset(id, 0, sizeof(*id)); 1547 id->format_protocol = SCSI_PROTO_SAS; 1548 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1549 return (sizeof(*id)); 1550 } 1551 default: 1552 { 1553 struct scsi_transportid_spi *id = 1554 (struct scsi_transportid_spi *)buf; 1555 memset(id, 0, sizeof(*id)); 1556 id->format_protocol = SCSI_PROTO_SPI; 1557 scsi_ulto2b(iid, id->scsi_addr); 1558 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1559 return (sizeof(*id)); 1560 } 1561 } 1562} 1563 1564static int 1565ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1566{ 1567 return (0); 1568} 1569 1570static int 1571ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1572{ 1573 return (0); 1574} 1575 1576/* 1577 * Data movement routine for the CTL ioctl frontend port. 1578 */ 1579static int 1580ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1581{ 1582 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1583 struct ctl_sg_entry ext_entry, kern_entry; 1584 int ext_sglen, ext_sg_entries, kern_sg_entries; 1585 int ext_sg_start, ext_offset; 1586 int len_to_copy, len_copied; 1587 int kern_watermark, ext_watermark; 1588 int ext_sglist_malloced; 1589 int i, j; 1590 1591 ext_sglist_malloced = 0; 1592 ext_sg_start = 0; 1593 ext_offset = 0; 1594 1595 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1596 1597 /* 1598 * If this flag is set, fake the data transfer. 1599 */ 1600 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1601 ctsio->ext_data_filled = ctsio->ext_data_len; 1602 goto bailout; 1603 } 1604 1605 /* 1606 * To simplify things here, if we have a single buffer, stick it in 1607 * a S/G entry and just make it a single entry S/G list. 1608 */ 1609 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1610 int len_seen; 1611 1612 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1613 1614 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1615 M_WAITOK); 1616 ext_sglist_malloced = 1; 1617 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1618 ext_sglen) != 0) { 1619 ctl_set_internal_failure(ctsio, 1620 /*sks_valid*/ 0, 1621 /*retry_count*/ 0); 1622 goto bailout; 1623 } 1624 ext_sg_entries = ctsio->ext_sg_entries; 1625 len_seen = 0; 1626 for (i = 0; i < ext_sg_entries; i++) { 1627 if ((len_seen + ext_sglist[i].len) >= 1628 ctsio->ext_data_filled) { 1629 ext_sg_start = i; 1630 ext_offset = ctsio->ext_data_filled - len_seen; 1631 break; 1632 } 1633 len_seen += ext_sglist[i].len; 1634 } 1635 } else { 1636 ext_sglist = &ext_entry; 1637 ext_sglist->addr = ctsio->ext_data_ptr; 1638 ext_sglist->len = ctsio->ext_data_len; 1639 ext_sg_entries = 1; 1640 ext_sg_start = 0; 1641 ext_offset = ctsio->ext_data_filled; 1642 } 1643 1644 if (ctsio->kern_sg_entries > 0) { 1645 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1646 kern_sg_entries = ctsio->kern_sg_entries; 1647 } else { 1648 kern_sglist = &kern_entry; 1649 kern_sglist->addr = ctsio->kern_data_ptr; 1650 kern_sglist->len = ctsio->kern_data_len; 1651 kern_sg_entries = 1; 1652 } 1653 1654 1655 kern_watermark = 0; 1656 ext_watermark = ext_offset; 1657 len_copied = 0; 1658 for (i = ext_sg_start, j = 0; 1659 i < ext_sg_entries && j < kern_sg_entries;) { 1660 uint8_t *ext_ptr, *kern_ptr; 1661 1662 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1663 kern_sglist[j].len - kern_watermark); 1664 1665 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1666 ext_ptr = ext_ptr + ext_watermark; 1667 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1668 /* 1669 * XXX KDM fix this! 1670 */ 1671 panic("need to implement bus address support"); 1672#if 0 1673 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1674#endif 1675 } else 1676 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1677 kern_ptr = kern_ptr + kern_watermark; 1678 1679 kern_watermark += len_to_copy; 1680 ext_watermark += len_to_copy; 1681 1682 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1683 CTL_FLAG_DATA_IN) { 1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1685 "bytes to user\n", len_to_copy)); 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1687 "to %p\n", kern_ptr, ext_ptr)); 1688 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1689 ctl_set_internal_failure(ctsio, 1690 /*sks_valid*/ 0, 1691 /*retry_count*/ 0); 1692 goto bailout; 1693 } 1694 } else { 1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1696 "bytes from user\n", len_to_copy)); 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1698 "to %p\n", ext_ptr, kern_ptr)); 1699 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1700 ctl_set_internal_failure(ctsio, 1701 /*sks_valid*/ 0, 1702 /*retry_count*/0); 1703 goto bailout; 1704 } 1705 } 1706 1707 len_copied += len_to_copy; 1708 1709 if (ext_sglist[i].len == ext_watermark) { 1710 i++; 1711 ext_watermark = 0; 1712 } 1713 1714 if (kern_sglist[j].len == kern_watermark) { 1715 j++; 1716 kern_watermark = 0; 1717 } 1718 } 1719 1720 ctsio->ext_data_filled += len_copied; 1721 1722 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1723 "kern_sg_entries: %d\n", ext_sg_entries, 1724 kern_sg_entries)); 1725 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1726 "kern_data_len = %d\n", ctsio->ext_data_len, 1727 ctsio->kern_data_len)); 1728 1729 1730 /* XXX KDM set residual?? */ 1731bailout: 1732 1733 if (ext_sglist_malloced != 0) 1734 free(ext_sglist, M_CTL); 1735 1736 return (CTL_RETVAL_COMPLETE); 1737} 1738 1739/* 1740 * Serialize a command that went down the "wrong" side, and so was sent to 1741 * this controller for execution. The logic is a little different than the 1742 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1743 * sent back to the other side, but in the success case, we execute the 1744 * command on this side (XFER mode) or tell the other side to execute it 1745 * (SER_ONLY mode). 1746 */ 1747static int 1748ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1749{ 1750 struct ctl_softc *ctl_softc; 1751 union ctl_ha_msg msg_info; 1752 struct ctl_lun *lun; 1753 int retval = 0; 1754 uint32_t targ_lun; 1755 1756 ctl_softc = control_softc; 1757 1758 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1759 lun = ctl_softc->ctl_luns[targ_lun]; 1760 if (lun==NULL) 1761 { 1762 /* 1763 * Why isn't LUN defined? The other side wouldn't 1764 * send a cmd if the LUN is undefined. 1765 */ 1766 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1767 1768 /* "Logical unit not supported" */ 1769 ctl_set_sense_data(&msg_info.scsi.sense_data, 1770 lun, 1771 /*sense_format*/SSD_TYPE_NONE, 1772 /*current_error*/ 1, 1773 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1774 /*asc*/ 0x25, 1775 /*ascq*/ 0x00, 1776 SSD_ELEM_NONE); 1777 1778 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1779 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1780 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1781 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1782 msg_info.hdr.serializing_sc = NULL; 1783 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1784 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1785 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1786 } 1787 return(1); 1788 1789 } 1790 1791 mtx_lock(&lun->lun_lock); 1792 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1793 1794 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1795 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1796 ooa_links))) { 1797 case CTL_ACTION_BLOCK: 1798 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1799 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1800 blocked_links); 1801 break; 1802 case CTL_ACTION_PASS: 1803 case CTL_ACTION_SKIP: 1804 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1805 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1806 ctl_enqueue_rtr((union ctl_io *)ctsio); 1807 } else { 1808 1809 /* send msg back to other side */ 1810 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1811 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1812 msg_info.hdr.msg_type = CTL_MSG_R2R; 1813#if 0 1814 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1815#endif 1816 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1817 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1818 } 1819 } 1820 break; 1821 case CTL_ACTION_OVERLAP: 1822 /* OVERLAPPED COMMANDS ATTEMPTED */ 1823 ctl_set_sense_data(&msg_info.scsi.sense_data, 1824 lun, 1825 /*sense_format*/SSD_TYPE_NONE, 1826 /*current_error*/ 1, 1827 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1828 /*asc*/ 0x4E, 1829 /*ascq*/ 0x00, 1830 SSD_ELEM_NONE); 1831 1832 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1833 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1834 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1835 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1836 msg_info.hdr.serializing_sc = NULL; 1837 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1838#if 0 1839 printf("BAD JUJU:Major Bummer Overlap\n"); 1840#endif 1841 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1842 retval = 1; 1843 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1844 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1845 } 1846 break; 1847 case CTL_ACTION_OVERLAP_TAG: 1848 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1849 ctl_set_sense_data(&msg_info.scsi.sense_data, 1850 lun, 1851 /*sense_format*/SSD_TYPE_NONE, 1852 /*current_error*/ 1, 1853 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1854 /*asc*/ 0x4D, 1855 /*ascq*/ ctsio->tag_num & 0xff, 1856 SSD_ELEM_NONE); 1857 1858 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1859 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1860 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864#if 0 1865 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1866#endif 1867 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1868 retval = 1; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 break; 1873 case CTL_ACTION_ERROR: 1874 default: 1875 /* "Internal target failure" */ 1876 ctl_set_sense_data(&msg_info.scsi.sense_data, 1877 lun, 1878 /*sense_format*/SSD_TYPE_NONE, 1879 /*current_error*/ 1, 1880 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1881 /*asc*/ 0x44, 1882 /*ascq*/ 0x00, 1883 SSD_ELEM_NONE); 1884 1885 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1886 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1887 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1888 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1889 msg_info.hdr.serializing_sc = NULL; 1890 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1891#if 0 1892 printf("BAD JUJU:Major Bummer HW Error\n"); 1893#endif 1894 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1895 retval = 1; 1896 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1897 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1898 } 1899 break; 1900 } 1901 mtx_unlock(&lun->lun_lock); 1902 return (retval); 1903} 1904 1905static int 1906ctl_ioctl_submit_wait(union ctl_io *io) 1907{ 1908 struct ctl_fe_ioctl_params params; 1909 ctl_fe_ioctl_state last_state; 1910 int done, retval; 1911 1912 retval = 0; 1913 1914 bzero(¶ms, sizeof(params)); 1915 1916 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1917 cv_init(¶ms.sem, "ctlioccv"); 1918 params.state = CTL_IOCTL_INPROG; 1919 last_state = params.state; 1920 1921 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1922 1923 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1924 1925 /* This shouldn't happen */ 1926 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1927 return (retval); 1928 1929 done = 0; 1930 1931 do { 1932 mtx_lock(¶ms.ioctl_mtx); 1933 /* 1934 * Check the state here, and don't sleep if the state has 1935 * already changed (i.e. wakeup has already occured, but we 1936 * weren't waiting yet). 1937 */ 1938 if (params.state == last_state) { 1939 /* XXX KDM cv_wait_sig instead? */ 1940 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1941 } 1942 last_state = params.state; 1943 1944 switch (params.state) { 1945 case CTL_IOCTL_INPROG: 1946 /* Why did we wake up? */ 1947 /* XXX KDM error here? */ 1948 mtx_unlock(¶ms.ioctl_mtx); 1949 break; 1950 case CTL_IOCTL_DATAMOVE: 1951 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1952 1953 /* 1954 * change last_state back to INPROG to avoid 1955 * deadlock on subsequent data moves. 1956 */ 1957 params.state = last_state = CTL_IOCTL_INPROG; 1958 1959 mtx_unlock(¶ms.ioctl_mtx); 1960 ctl_ioctl_do_datamove(&io->scsiio); 1961 /* 1962 * Note that in some cases, most notably writes, 1963 * this will queue the I/O and call us back later. 1964 * In other cases, generally reads, this routine 1965 * will immediately call back and wake us up, 1966 * probably using our own context. 1967 */ 1968 io->scsiio.be_move_done(io); 1969 break; 1970 case CTL_IOCTL_DONE: 1971 mtx_unlock(¶ms.ioctl_mtx); 1972 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1973 done = 1; 1974 break; 1975 default: 1976 mtx_unlock(¶ms.ioctl_mtx); 1977 /* XXX KDM error here? */ 1978 break; 1979 } 1980 } while (done == 0); 1981 1982 mtx_destroy(¶ms.ioctl_mtx); 1983 cv_destroy(¶ms.sem); 1984 1985 return (CTL_RETVAL_COMPLETE); 1986} 1987 1988static void 1989ctl_ioctl_datamove(union ctl_io *io) 1990{ 1991 struct ctl_fe_ioctl_params *params; 1992 1993 params = (struct ctl_fe_ioctl_params *) 1994 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1995 1996 mtx_lock(¶ms->ioctl_mtx); 1997 params->state = CTL_IOCTL_DATAMOVE; 1998 cv_broadcast(¶ms->sem); 1999 mtx_unlock(¶ms->ioctl_mtx); 2000} 2001 2002static void 2003ctl_ioctl_done(union ctl_io *io) 2004{ 2005 struct ctl_fe_ioctl_params *params; 2006 2007 params = (struct ctl_fe_ioctl_params *) 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2009 2010 mtx_lock(¶ms->ioctl_mtx); 2011 params->state = CTL_IOCTL_DONE; 2012 cv_broadcast(¶ms->sem); 2013 mtx_unlock(¶ms->ioctl_mtx); 2014} 2015 2016static void 2017ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2018{ 2019 struct ctl_fe_ioctl_startstop_info *sd_info; 2020 2021 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2022 2023 sd_info->hs_info.status = metatask->status; 2024 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2025 sd_info->hs_info.luns_complete = 2026 metatask->taskinfo.startstop.luns_complete; 2027 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2028 2029 cv_broadcast(&sd_info->sem); 2030} 2031 2032static void 2033ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2034{ 2035 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2036 2037 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2038 2039 mtx_lock(fe_bbr_info->lock); 2040 fe_bbr_info->bbr_info->status = metatask->status; 2041 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2042 fe_bbr_info->wakeup_done = 1; 2043 mtx_unlock(fe_bbr_info->lock); 2044 2045 cv_broadcast(&fe_bbr_info->sem); 2046} 2047 2048/* 2049 * Returns 0 for success, errno for failure. 2050 */ 2051static int 2052ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2053 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2054{ 2055 union ctl_io *io; 2056 int retval; 2057 2058 retval = 0; 2059 2060 mtx_lock(&lun->lun_lock); 2061 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2062 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2063 ooa_links)) { 2064 struct ctl_ooa_entry *entry; 2065 2066 /* 2067 * If we've got more than we can fit, just count the 2068 * remaining entries. 2069 */ 2070 if (*cur_fill_num >= ooa_hdr->alloc_num) 2071 continue; 2072 2073 entry = &kern_entries[*cur_fill_num]; 2074 2075 entry->tag_num = io->scsiio.tag_num; 2076 entry->lun_num = lun->lun; 2077#ifdef CTL_TIME_IO 2078 entry->start_bt = io->io_hdr.start_bt; 2079#endif 2080 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2081 entry->cdb_len = io->scsiio.cdb_len; 2082 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2090 2091 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2092 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2093 2094 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2095 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2096 } 2097 mtx_unlock(&lun->lun_lock); 2098 2099 return (retval); 2100} 2101 2102static void * 2103ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2104 size_t error_str_len) 2105{ 2106 void *kptr; 2107 2108 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2109 2110 if (copyin(user_addr, kptr, len) != 0) { 2111 snprintf(error_str, error_str_len, "Error copying %d bytes " 2112 "from user address %p to kernel address %p", len, 2113 user_addr, kptr); 2114 free(kptr, M_CTL); 2115 return (NULL); 2116 } 2117 2118 return (kptr); 2119} 2120 2121static void 2122ctl_free_args(int num_args, struct ctl_be_arg *args) 2123{ 2124 int i; 2125 2126 if (args == NULL) 2127 return; 2128 2129 for (i = 0; i < num_args; i++) { 2130 free(args[i].kname, M_CTL); 2131 free(args[i].kvalue, M_CTL); 2132 } 2133 2134 free(args, M_CTL); 2135} 2136 2137static struct ctl_be_arg * 2138ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2139 char *error_str, size_t error_str_len) 2140{ 2141 struct ctl_be_arg *args; 2142 int i; 2143 2144 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2145 error_str, error_str_len); 2146 2147 if (args == NULL) 2148 goto bailout; 2149 2150 for (i = 0; i < num_args; i++) { 2151 args[i].kname = NULL; 2152 args[i].kvalue = NULL; 2153 } 2154 2155 for (i = 0; i < num_args; i++) { 2156 uint8_t *tmpptr; 2157 2158 args[i].kname = ctl_copyin_alloc(args[i].name, 2159 args[i].namelen, error_str, error_str_len); 2160 if (args[i].kname == NULL) 2161 goto bailout; 2162 2163 if (args[i].kname[args[i].namelen - 1] != '\0') { 2164 snprintf(error_str, error_str_len, "Argument %d " 2165 "name is not NUL-terminated", i); 2166 goto bailout; 2167 } 2168 2169 if (args[i].flags & CTL_BEARG_RD) { 2170 tmpptr = ctl_copyin_alloc(args[i].value, 2171 args[i].vallen, error_str, error_str_len); 2172 if (tmpptr == NULL) 2173 goto bailout; 2174 if ((args[i].flags & CTL_BEARG_ASCII) 2175 && (tmpptr[args[i].vallen - 1] != '\0')) { 2176 snprintf(error_str, error_str_len, "Argument " 2177 "%d value is not NUL-terminated", i); 2178 goto bailout; 2179 } 2180 args[i].kvalue = tmpptr; 2181 } else { 2182 args[i].kvalue = malloc(args[i].vallen, 2183 M_CTL, M_WAITOK | M_ZERO); 2184 } 2185 } 2186 2187 return (args); 2188bailout: 2189 2190 ctl_free_args(num_args, args); 2191 2192 return (NULL); 2193} 2194 2195static void 2196ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2197{ 2198 int i; 2199 2200 for (i = 0; i < num_args; i++) { 2201 if (args[i].flags & CTL_BEARG_WR) 2202 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2203 } 2204} 2205 2206/* 2207 * Escape characters that are illegal or not recommended in XML. 2208 */ 2209int 2210ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2211{ 2212 int retval; 2213 2214 retval = 0; 2215 2216 for (; *str; str++) { 2217 switch (*str) { 2218 case '&': 2219 retval = sbuf_printf(sb, "&"); 2220 break; 2221 case '>': 2222 retval = sbuf_printf(sb, ">"); 2223 break; 2224 case '<': 2225 retval = sbuf_printf(sb, "<"); 2226 break; 2227 default: 2228 retval = sbuf_putc(sb, *str); 2229 break; 2230 } 2231 2232 if (retval != 0) 2233 break; 2234 2235 } 2236 2237 return (retval); 2238} 2239 2240static int 2241ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2242 struct thread *td) 2243{ 2244 struct ctl_softc *softc; 2245 int retval; 2246 2247 softc = control_softc; 2248 2249 retval = 0; 2250 2251 switch (cmd) { 2252 case CTL_IO: { 2253 union ctl_io *io; 2254 void *pool_tmp; 2255 2256 /* 2257 * If we haven't been "enabled", don't allow any SCSI I/O 2258 * to this FETD. 2259 */ 2260 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2261 retval = EPERM; 2262 break; 2263 } 2264 2265 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2266 if (io == NULL) { 2267 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2268 retval = ENOSPC; 2269 break; 2270 } 2271 2272 /* 2273 * Need to save the pool reference so it doesn't get 2274 * spammed by the user's ctl_io. 2275 */ 2276 pool_tmp = io->io_hdr.pool; 2277 2278 memcpy(io, (void *)addr, sizeof(*io)); 2279 2280 io->io_hdr.pool = pool_tmp; 2281 /* 2282 * No status yet, so make sure the status is set properly. 2283 */ 2284 io->io_hdr.status = CTL_STATUS_NONE; 2285 2286 /* 2287 * The user sets the initiator ID, target and LUN IDs. 2288 */ 2289 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2290 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2291 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2292 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2293 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2294 2295 retval = ctl_ioctl_submit_wait(io); 2296 2297 if (retval != 0) { 2298 ctl_free_io(io); 2299 break; 2300 } 2301 2302 memcpy((void *)addr, io, sizeof(*io)); 2303 2304 /* return this to our pool */ 2305 ctl_free_io(io); 2306 2307 break; 2308 } 2309 case CTL_ENABLE_PORT: 2310 case CTL_DISABLE_PORT: 2311 case CTL_SET_PORT_WWNS: { 2312 struct ctl_port *port; 2313 struct ctl_port_entry *entry; 2314 2315 entry = (struct ctl_port_entry *)addr; 2316 2317 mtx_lock(&softc->ctl_lock); 2318 STAILQ_FOREACH(port, &softc->port_list, links) { 2319 int action, done; 2320 2321 action = 0; 2322 done = 0; 2323 2324 if ((entry->port_type == CTL_PORT_NONE) 2325 && (entry->targ_port == port->targ_port)) { 2326 /* 2327 * If the user only wants to enable or 2328 * disable or set WWNs on a specific port, 2329 * do the operation and we're done. 2330 */ 2331 action = 1; 2332 done = 1; 2333 } else if (entry->port_type & port->port_type) { 2334 /* 2335 * Compare the user's type mask with the 2336 * particular frontend type to see if we 2337 * have a match. 2338 */ 2339 action = 1; 2340 done = 0; 2341 2342 /* 2343 * Make sure the user isn't trying to set 2344 * WWNs on multiple ports at the same time. 2345 */ 2346 if (cmd == CTL_SET_PORT_WWNS) { 2347 printf("%s: Can't set WWNs on " 2348 "multiple ports\n", __func__); 2349 retval = EINVAL; 2350 break; 2351 } 2352 } 2353 if (action != 0) { 2354 /* 2355 * XXX KDM we have to drop the lock here, 2356 * because the online/offline operations 2357 * can potentially block. We need to 2358 * reference count the frontends so they 2359 * can't go away, 2360 */ 2361 mtx_unlock(&softc->ctl_lock); 2362 2363 if (cmd == CTL_ENABLE_PORT) { 2364 struct ctl_lun *lun; 2365 2366 STAILQ_FOREACH(lun, &softc->lun_list, 2367 links) { 2368 port->lun_enable(port->targ_lun_arg, 2369 lun->target, 2370 lun->lun); 2371 } 2372 2373 ctl_port_online(port); 2374 } else if (cmd == CTL_DISABLE_PORT) { 2375 struct ctl_lun *lun; 2376 2377 ctl_port_offline(port); 2378 2379 STAILQ_FOREACH(lun, &softc->lun_list, 2380 links) { 2381 port->lun_disable( 2382 port->targ_lun_arg, 2383 lun->target, 2384 lun->lun); 2385 } 2386 } 2387 2388 mtx_lock(&softc->ctl_lock); 2389 2390 if (cmd == CTL_SET_PORT_WWNS) 2391 ctl_port_set_wwns(port, 2392 (entry->flags & CTL_PORT_WWNN_VALID) ? 2393 1 : 0, entry->wwnn, 2394 (entry->flags & CTL_PORT_WWPN_VALID) ? 2395 1 : 0, entry->wwpn); 2396 } 2397 if (done != 0) 2398 break; 2399 } 2400 mtx_unlock(&softc->ctl_lock); 2401 break; 2402 } 2403 case CTL_GET_PORT_LIST: { 2404 struct ctl_port *port; 2405 struct ctl_port_list *list; 2406 int i; 2407 2408 list = (struct ctl_port_list *)addr; 2409 2410 if (list->alloc_len != (list->alloc_num * 2411 sizeof(struct ctl_port_entry))) { 2412 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2413 "alloc_num %u * sizeof(struct ctl_port_entry) " 2414 "%zu\n", __func__, list->alloc_len, 2415 list->alloc_num, sizeof(struct ctl_port_entry)); 2416 retval = EINVAL; 2417 break; 2418 } 2419 list->fill_len = 0; 2420 list->fill_num = 0; 2421 list->dropped_num = 0; 2422 i = 0; 2423 mtx_lock(&softc->ctl_lock); 2424 STAILQ_FOREACH(port, &softc->port_list, links) { 2425 struct ctl_port_entry entry, *list_entry; 2426 2427 if (list->fill_num >= list->alloc_num) { 2428 list->dropped_num++; 2429 continue; 2430 } 2431 2432 entry.port_type = port->port_type; 2433 strlcpy(entry.port_name, port->port_name, 2434 sizeof(entry.port_name)); 2435 entry.targ_port = port->targ_port; 2436 entry.physical_port = port->physical_port; 2437 entry.virtual_port = port->virtual_port; 2438 entry.wwnn = port->wwnn; 2439 entry.wwpn = port->wwpn; 2440 if (port->status & CTL_PORT_STATUS_ONLINE) 2441 entry.online = 1; 2442 else 2443 entry.online = 0; 2444 2445 list_entry = &list->entries[i]; 2446 2447 retval = copyout(&entry, list_entry, sizeof(entry)); 2448 if (retval != 0) { 2449 printf("%s: CTL_GET_PORT_LIST: copyout " 2450 "returned %d\n", __func__, retval); 2451 break; 2452 } 2453 i++; 2454 list->fill_num++; 2455 list->fill_len += sizeof(entry); 2456 } 2457 mtx_unlock(&softc->ctl_lock); 2458 2459 /* 2460 * If this is non-zero, we had a copyout fault, so there's 2461 * probably no point in attempting to set the status inside 2462 * the structure. 2463 */ 2464 if (retval != 0) 2465 break; 2466 2467 if (list->dropped_num > 0) 2468 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2469 else 2470 list->status = CTL_PORT_LIST_OK; 2471 break; 2472 } 2473 case CTL_DUMP_OOA: { 2474 struct ctl_lun *lun; 2475 union ctl_io *io; 2476 char printbuf[128]; 2477 struct sbuf sb; 2478 2479 mtx_lock(&softc->ctl_lock); 2480 printf("Dumping OOA queues:\n"); 2481 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2482 mtx_lock(&lun->lun_lock); 2483 for (io = (union ctl_io *)TAILQ_FIRST( 2484 &lun->ooa_queue); io != NULL; 2485 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2486 ooa_links)) { 2487 sbuf_new(&sb, printbuf, sizeof(printbuf), 2488 SBUF_FIXEDLEN); 2489 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2490 (intmax_t)lun->lun, 2491 io->scsiio.tag_num, 2492 (io->io_hdr.flags & 2493 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_ABORT) ? " ABORT" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2500 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2501 sbuf_finish(&sb); 2502 printf("%s\n", sbuf_data(&sb)); 2503 } 2504 mtx_unlock(&lun->lun_lock); 2505 } 2506 printf("OOA queues dump done\n"); 2507 mtx_unlock(&softc->ctl_lock); 2508 break; 2509 } 2510 case CTL_GET_OOA: { 2511 struct ctl_lun *lun; 2512 struct ctl_ooa *ooa_hdr; 2513 struct ctl_ooa_entry *entries; 2514 uint32_t cur_fill_num; 2515 2516 ooa_hdr = (struct ctl_ooa *)addr; 2517 2518 if ((ooa_hdr->alloc_len == 0) 2519 || (ooa_hdr->alloc_num == 0)) { 2520 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2521 "must be non-zero\n", __func__, 2522 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2523 retval = EINVAL; 2524 break; 2525 } 2526 2527 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2528 sizeof(struct ctl_ooa_entry))) { 2529 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2530 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2531 __func__, ooa_hdr->alloc_len, 2532 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 2537 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2538 if (entries == NULL) { 2539 printf("%s: could not allocate %d bytes for OOA " 2540 "dump\n", __func__, ooa_hdr->alloc_len); 2541 retval = ENOMEM; 2542 break; 2543 } 2544 2545 mtx_lock(&softc->ctl_lock); 2546 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2547 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2548 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2549 mtx_unlock(&softc->ctl_lock); 2550 free(entries, M_CTL); 2551 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2552 __func__, (uintmax_t)ooa_hdr->lun_num); 2553 retval = EINVAL; 2554 break; 2555 } 2556 2557 cur_fill_num = 0; 2558 2559 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2560 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2561 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2562 ooa_hdr, entries); 2563 if (retval != 0) 2564 break; 2565 } 2566 if (retval != 0) { 2567 mtx_unlock(&softc->ctl_lock); 2568 free(entries, M_CTL); 2569 break; 2570 } 2571 } else { 2572 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2573 2574 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2575 entries); 2576 } 2577 mtx_unlock(&softc->ctl_lock); 2578 2579 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2580 ooa_hdr->fill_len = ooa_hdr->fill_num * 2581 sizeof(struct ctl_ooa_entry); 2582 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2583 if (retval != 0) { 2584 printf("%s: error copying out %d bytes for OOA dump\n", 2585 __func__, ooa_hdr->fill_len); 2586 } 2587 2588 getbintime(&ooa_hdr->cur_bt); 2589 2590 if (cur_fill_num > ooa_hdr->alloc_num) { 2591 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2592 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2593 } else { 2594 ooa_hdr->dropped_num = 0; 2595 ooa_hdr->status = CTL_OOA_OK; 2596 } 2597 2598 free(entries, M_CTL); 2599 break; 2600 } 2601 case CTL_CHECK_OOA: { 2602 union ctl_io *io; 2603 struct ctl_lun *lun; 2604 struct ctl_ooa_info *ooa_info; 2605 2606 2607 ooa_info = (struct ctl_ooa_info *)addr; 2608 2609 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2610 ooa_info->status = CTL_OOA_INVALID_LUN; 2611 break; 2612 } 2613 mtx_lock(&softc->ctl_lock); 2614 lun = softc->ctl_luns[ooa_info->lun_id]; 2615 if (lun == NULL) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ooa_info->status = CTL_OOA_INVALID_LUN; 2618 break; 2619 } 2620 mtx_lock(&lun->lun_lock); 2621 mtx_unlock(&softc->ctl_lock); 2622 ooa_info->num_entries = 0; 2623 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2624 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2625 &io->io_hdr, ooa_links)) { 2626 ooa_info->num_entries++; 2627 } 2628 mtx_unlock(&lun->lun_lock); 2629 2630 ooa_info->status = CTL_OOA_SUCCESS; 2631 2632 break; 2633 } 2634 case CTL_HARD_START: 2635 case CTL_HARD_STOP: { 2636 struct ctl_fe_ioctl_startstop_info ss_info; 2637 struct cfi_metatask *metatask; 2638 struct mtx hs_mtx; 2639 2640 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2641 2642 cv_init(&ss_info.sem, "hard start/stop cv" ); 2643 2644 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2645 if (metatask == NULL) { 2646 retval = ENOMEM; 2647 mtx_destroy(&hs_mtx); 2648 break; 2649 } 2650 2651 if (cmd == CTL_HARD_START) 2652 metatask->tasktype = CFI_TASK_STARTUP; 2653 else 2654 metatask->tasktype = CFI_TASK_SHUTDOWN; 2655 2656 metatask->callback = ctl_ioctl_hard_startstop_callback; 2657 metatask->callback_arg = &ss_info; 2658 2659 cfi_action(metatask); 2660 2661 /* Wait for the callback */ 2662 mtx_lock(&hs_mtx); 2663 cv_wait_sig(&ss_info.sem, &hs_mtx); 2664 mtx_unlock(&hs_mtx); 2665 2666 /* 2667 * All information has been copied from the metatask by the 2668 * time cv_broadcast() is called, so we free the metatask here. 2669 */ 2670 cfi_free_metatask(metatask); 2671 2672 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2673 2674 mtx_destroy(&hs_mtx); 2675 break; 2676 } 2677 case CTL_BBRREAD: { 2678 struct ctl_bbrread_info *bbr_info; 2679 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2680 struct mtx bbr_mtx; 2681 struct cfi_metatask *metatask; 2682 2683 bbr_info = (struct ctl_bbrread_info *)addr; 2684 2685 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2686 2687 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2688 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2689 2690 fe_bbr_info.bbr_info = bbr_info; 2691 fe_bbr_info.lock = &bbr_mtx; 2692 2693 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2694 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2695 2696 if (metatask == NULL) { 2697 mtx_destroy(&bbr_mtx); 2698 cv_destroy(&fe_bbr_info.sem); 2699 retval = ENOMEM; 2700 break; 2701 } 2702 metatask->tasktype = CFI_TASK_BBRREAD; 2703 metatask->callback = ctl_ioctl_bbrread_callback; 2704 metatask->callback_arg = &fe_bbr_info; 2705 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2706 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2707 metatask->taskinfo.bbrread.len = bbr_info->len; 2708 2709 cfi_action(metatask); 2710 2711 mtx_lock(&bbr_mtx); 2712 while (fe_bbr_info.wakeup_done == 0) 2713 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2714 mtx_unlock(&bbr_mtx); 2715 2716 bbr_info->status = metatask->status; 2717 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2718 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2719 memcpy(&bbr_info->sense_data, 2720 &metatask->taskinfo.bbrread.sense_data, 2721 ctl_min(sizeof(bbr_info->sense_data), 2722 sizeof(metatask->taskinfo.bbrread.sense_data))); 2723 2724 cfi_free_metatask(metatask); 2725 2726 mtx_destroy(&bbr_mtx); 2727 cv_destroy(&fe_bbr_info.sem); 2728 2729 break; 2730 } 2731 case CTL_DELAY_IO: { 2732 struct ctl_io_delay_info *delay_info; 2733#ifdef CTL_IO_DELAY 2734 struct ctl_lun *lun; 2735#endif /* CTL_IO_DELAY */ 2736 2737 delay_info = (struct ctl_io_delay_info *)addr; 2738 2739#ifdef CTL_IO_DELAY 2740 mtx_lock(&softc->ctl_lock); 2741 2742 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2743 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2744 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2745 } else { 2746 lun = softc->ctl_luns[delay_info->lun_id]; 2747 mtx_lock(&lun->lun_lock); 2748 2749 delay_info->status = CTL_DELAY_STATUS_OK; 2750 2751 switch (delay_info->delay_type) { 2752 case CTL_DELAY_TYPE_CONT: 2753 break; 2754 case CTL_DELAY_TYPE_ONESHOT: 2755 break; 2756 default: 2757 delay_info->status = 2758 CTL_DELAY_STATUS_INVALID_TYPE; 2759 break; 2760 } 2761 2762 switch (delay_info->delay_loc) { 2763 case CTL_DELAY_LOC_DATAMOVE: 2764 lun->delay_info.datamove_type = 2765 delay_info->delay_type; 2766 lun->delay_info.datamove_delay = 2767 delay_info->delay_secs; 2768 break; 2769 case CTL_DELAY_LOC_DONE: 2770 lun->delay_info.done_type = 2771 delay_info->delay_type; 2772 lun->delay_info.done_delay = 2773 delay_info->delay_secs; 2774 break; 2775 default: 2776 delay_info->status = 2777 CTL_DELAY_STATUS_INVALID_LOC; 2778 break; 2779 } 2780 mtx_unlock(&lun->lun_lock); 2781 } 2782 2783 mtx_unlock(&softc->ctl_lock); 2784#else 2785 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2786#endif /* CTL_IO_DELAY */ 2787 break; 2788 } 2789 case CTL_REALSYNC_SET: { 2790 int *syncstate; 2791 2792 syncstate = (int *)addr; 2793 2794 mtx_lock(&softc->ctl_lock); 2795 switch (*syncstate) { 2796 case 0: 2797 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2798 break; 2799 case 1: 2800 softc->flags |= CTL_FLAG_REAL_SYNC; 2801 break; 2802 default: 2803 retval = EINVAL; 2804 break; 2805 } 2806 mtx_unlock(&softc->ctl_lock); 2807 break; 2808 } 2809 case CTL_REALSYNC_GET: { 2810 int *syncstate; 2811 2812 syncstate = (int*)addr; 2813 2814 mtx_lock(&softc->ctl_lock); 2815 if (softc->flags & CTL_FLAG_REAL_SYNC) 2816 *syncstate = 1; 2817 else 2818 *syncstate = 0; 2819 mtx_unlock(&softc->ctl_lock); 2820 2821 break; 2822 } 2823 case CTL_SETSYNC: 2824 case CTL_GETSYNC: { 2825 struct ctl_sync_info *sync_info; 2826 struct ctl_lun *lun; 2827 2828 sync_info = (struct ctl_sync_info *)addr; 2829 2830 mtx_lock(&softc->ctl_lock); 2831 lun = softc->ctl_luns[sync_info->lun_id]; 2832 if (lun == NULL) { 2833 mtx_unlock(&softc->ctl_lock); 2834 sync_info->status = CTL_GS_SYNC_NO_LUN; 2835 } 2836 /* 2837 * Get or set the sync interval. We're not bounds checking 2838 * in the set case, hopefully the user won't do something 2839 * silly. 2840 */ 2841 mtx_lock(&lun->lun_lock); 2842 mtx_unlock(&softc->ctl_lock); 2843 if (cmd == CTL_GETSYNC) 2844 sync_info->sync_interval = lun->sync_interval; 2845 else 2846 lun->sync_interval = sync_info->sync_interval; 2847 mtx_unlock(&lun->lun_lock); 2848 2849 sync_info->status = CTL_GS_SYNC_OK; 2850 2851 break; 2852 } 2853 case CTL_GETSTATS: { 2854 struct ctl_stats *stats; 2855 struct ctl_lun *lun; 2856 int i; 2857 2858 stats = (struct ctl_stats *)addr; 2859 2860 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2861 stats->alloc_len) { 2862 stats->status = CTL_SS_NEED_MORE_SPACE; 2863 stats->num_luns = softc->num_luns; 2864 break; 2865 } 2866 /* 2867 * XXX KDM no locking here. If the LUN list changes, 2868 * things can blow up. 2869 */ 2870 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2871 i++, lun = STAILQ_NEXT(lun, links)) { 2872 retval = copyout(&lun->stats, &stats->lun_stats[i], 2873 sizeof(lun->stats)); 2874 if (retval != 0) 2875 break; 2876 } 2877 stats->num_luns = softc->num_luns; 2878 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2879 softc->num_luns; 2880 stats->status = CTL_SS_OK; 2881#ifdef CTL_TIME_IO 2882 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2883#else 2884 stats->flags = CTL_STATS_FLAG_NONE; 2885#endif 2886 getnanouptime(&stats->timestamp); 2887 break; 2888 } 2889 case CTL_ERROR_INJECT: { 2890 struct ctl_error_desc *err_desc, *new_err_desc; 2891 struct ctl_lun *lun; 2892 2893 err_desc = (struct ctl_error_desc *)addr; 2894 2895 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2896 M_WAITOK | M_ZERO); 2897 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2898 2899 mtx_lock(&softc->ctl_lock); 2900 lun = softc->ctl_luns[err_desc->lun_id]; 2901 if (lun == NULL) { 2902 mtx_unlock(&softc->ctl_lock); 2903 free(new_err_desc, M_CTL); 2904 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2905 __func__, (uintmax_t)err_desc->lun_id); 2906 retval = EINVAL; 2907 break; 2908 } 2909 mtx_lock(&lun->lun_lock); 2910 mtx_unlock(&softc->ctl_lock); 2911 2912 /* 2913 * We could do some checking here to verify the validity 2914 * of the request, but given the complexity of error 2915 * injection requests, the checking logic would be fairly 2916 * complex. 2917 * 2918 * For now, if the request is invalid, it just won't get 2919 * executed and might get deleted. 2920 */ 2921 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2922 2923 /* 2924 * XXX KDM check to make sure the serial number is unique, 2925 * in case we somehow manage to wrap. That shouldn't 2926 * happen for a very long time, but it's the right thing to 2927 * do. 2928 */ 2929 new_err_desc->serial = lun->error_serial; 2930 err_desc->serial = lun->error_serial; 2931 lun->error_serial++; 2932 2933 mtx_unlock(&lun->lun_lock); 2934 break; 2935 } 2936 case CTL_ERROR_INJECT_DELETE: { 2937 struct ctl_error_desc *delete_desc, *desc, *desc2; 2938 struct ctl_lun *lun; 2939 int delete_done; 2940 2941 delete_desc = (struct ctl_error_desc *)addr; 2942 delete_done = 0; 2943 2944 mtx_lock(&softc->ctl_lock); 2945 lun = softc->ctl_luns[delete_desc->lun_id]; 2946 if (lun == NULL) { 2947 mtx_unlock(&softc->ctl_lock); 2948 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2949 __func__, (uintmax_t)delete_desc->lun_id); 2950 retval = EINVAL; 2951 break; 2952 } 2953 mtx_lock(&lun->lun_lock); 2954 mtx_unlock(&softc->ctl_lock); 2955 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2956 if (desc->serial != delete_desc->serial) 2957 continue; 2958 2959 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2960 links); 2961 free(desc, M_CTL); 2962 delete_done = 1; 2963 } 2964 mtx_unlock(&lun->lun_lock); 2965 if (delete_done == 0) { 2966 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2967 "error serial %ju on LUN %u\n", __func__, 2968 delete_desc->serial, delete_desc->lun_id); 2969 retval = EINVAL; 2970 break; 2971 } 2972 break; 2973 } 2974 case CTL_DUMP_STRUCTS: { 2975 int i, j, k, idx; 2976 struct ctl_port *port; 2977 struct ctl_frontend *fe; 2978 2979 mtx_lock(&softc->ctl_lock); 2980 printf("CTL Persistent Reservation information start:\n"); 2981 for (i = 0; i < CTL_MAX_LUNS; i++) { 2982 struct ctl_lun *lun; 2983 2984 lun = softc->ctl_luns[i]; 2985 2986 if ((lun == NULL) 2987 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2988 continue; 2989 2990 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2991 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2992 idx = j * CTL_MAX_INIT_PER_PORT + k; 2993 if (lun->per_res[idx].registered == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)scsi_8btou64( 2998 lun->per_res[idx].res_key.key)); 2999 } 3000 } 3001 } 3002 printf("CTL Persistent Reservation information end\n"); 3003 printf("CTL Ports:\n"); 3004 STAILQ_FOREACH(port, &softc->port_list, links) { 3005 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3006 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3007 port->frontend->name, port->port_type, 3008 port->physical_port, port->virtual_port, 3009 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3010 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3011 if (port->wwpn_iid[j].in_use == 0 && 3012 port->wwpn_iid[j].wwpn == 0 && 3013 port->wwpn_iid[j].name == NULL) 3014 continue; 3015 3016 printf(" iid %u use %d WWPN %#jx '%s'\n", 3017 j, port->wwpn_iid[j].in_use, 3018 (uintmax_t)port->wwpn_iid[j].wwpn, 3019 port->wwpn_iid[j].name); 3020 } 3021 } 3022 printf("CTL Port information end\n"); 3023 mtx_unlock(&softc->ctl_lock); 3024 /* 3025 * XXX KDM calling this without a lock. We'd likely want 3026 * to drop the lock before calling the frontend's dump 3027 * routine anyway. 3028 */ 3029 printf("CTL Frontends:\n"); 3030 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3031 printf(" Frontend '%s'\n", fe->name); 3032 if (fe->fe_dump != NULL) 3033 fe->fe_dump(); 3034 } 3035 printf("CTL Frontend information end\n"); 3036 break; 3037 } 3038 case CTL_LUN_REQ: { 3039 struct ctl_lun_req *lun_req; 3040 struct ctl_backend_driver *backend; 3041 3042 lun_req = (struct ctl_lun_req *)addr; 3043 3044 backend = ctl_backend_find(lun_req->backend); 3045 if (backend == NULL) { 3046 lun_req->status = CTL_LUN_ERROR; 3047 snprintf(lun_req->error_str, 3048 sizeof(lun_req->error_str), 3049 "Backend \"%s\" not found.", 3050 lun_req->backend); 3051 break; 3052 } 3053 if (lun_req->num_be_args > 0) { 3054 lun_req->kern_be_args = ctl_copyin_args( 3055 lun_req->num_be_args, 3056 lun_req->be_args, 3057 lun_req->error_str, 3058 sizeof(lun_req->error_str)); 3059 if (lun_req->kern_be_args == NULL) { 3060 lun_req->status = CTL_LUN_ERROR; 3061 break; 3062 } 3063 } 3064 3065 retval = backend->ioctl(dev, cmd, addr, flag, td); 3066 3067 if (lun_req->num_be_args > 0) { 3068 ctl_copyout_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 ctl_free_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 } 3073 break; 3074 } 3075 case CTL_LUN_LIST: { 3076 struct sbuf *sb; 3077 struct ctl_lun *lun; 3078 struct ctl_lun_list *list; 3079 struct ctl_option *opt; 3080 3081 list = (struct ctl_lun_list *)addr; 3082 3083 /* 3084 * Allocate a fixed length sbuf here, based on the length 3085 * of the user's buffer. We could allocate an auto-extending 3086 * buffer, and then tell the user how much larger our 3087 * amount of data is than his buffer, but that presents 3088 * some problems: 3089 * 3090 * 1. The sbuf(9) routines use a blocking malloc, and so 3091 * we can't hold a lock while calling them with an 3092 * auto-extending buffer. 3093 * 3094 * 2. There is not currently a LUN reference counting 3095 * mechanism, outside of outstanding transactions on 3096 * the LUN's OOA queue. So a LUN could go away on us 3097 * while we're getting the LUN number, backend-specific 3098 * information, etc. Thus, given the way things 3099 * currently work, we need to hold the CTL lock while 3100 * grabbing LUN information. 3101 * 3102 * So, from the user's standpoint, the best thing to do is 3103 * allocate what he thinks is a reasonable buffer length, 3104 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3105 * double the buffer length and try again. (And repeat 3106 * that until he succeeds.) 3107 */ 3108 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3109 if (sb == NULL) { 3110 list->status = CTL_LUN_LIST_ERROR; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Unable to allocate %d bytes for LUN list", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_printf(sb, "<ctllunlist>\n"); 3118 3119 mtx_lock(&softc->ctl_lock); 3120 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3121 mtx_lock(&lun->lun_lock); 3122 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3123 (uintmax_t)lun->lun); 3124 3125 /* 3126 * Bail out as soon as we see that we've overfilled 3127 * the buffer. 3128 */ 3129 if (retval != 0) 3130 break; 3131 3132 retval = sbuf_printf(sb, "\t<backend_type>%s" 3133 "</backend_type>\n", 3134 (lun->backend == NULL) ? "none" : 3135 lun->backend->name); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3141 lun->be_lun->lun_type); 3142 3143 if (retval != 0) 3144 break; 3145 3146 if (lun->backend == NULL) { 3147 retval = sbuf_printf(sb, "</lun>\n"); 3148 if (retval != 0) 3149 break; 3150 continue; 3151 } 3152 3153 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3154 (lun->be_lun->maxlba > 0) ? 3155 lun->be_lun->maxlba + 1 : 0); 3156 3157 if (retval != 0) 3158 break; 3159 3160 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3161 lun->be_lun->blocksize); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = sbuf_printf(sb, "\t<serial_number>"); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = ctl_sbuf_printf_esc(sb, 3172 lun->be_lun->serial_num); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "</serial_number>\n"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "\t<device_id>"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3188 3189 if (retval != 0) 3190 break; 3191 3192 retval = sbuf_printf(sb, "</device_id>\n"); 3193 3194 if (retval != 0) 3195 break; 3196 3197 if (lun->backend->lun_info != NULL) { 3198 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3199 if (retval != 0) 3200 break; 3201 } 3202 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3203 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3204 opt->name, opt->value, opt->name); 3205 if (retval != 0) 3206 break; 3207 } 3208 3209 retval = sbuf_printf(sb, "</lun>\n"); 3210 3211 if (retval != 0) 3212 break; 3213 mtx_unlock(&lun->lun_lock); 3214 } 3215 if (lun != NULL) 3216 mtx_unlock(&lun->lun_lock); 3217 mtx_unlock(&softc->ctl_lock); 3218 3219 if ((retval != 0) 3220 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3221 retval = 0; 3222 sbuf_delete(sb); 3223 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3224 snprintf(list->error_str, sizeof(list->error_str), 3225 "Out of space, %d bytes is too small", 3226 list->alloc_len); 3227 break; 3228 } 3229 3230 sbuf_finish(sb); 3231 3232 retval = copyout(sbuf_data(sb), list->lun_xml, 3233 sbuf_len(sb) + 1); 3234 3235 list->fill_len = sbuf_len(sb) + 1; 3236 list->status = CTL_LUN_LIST_OK; 3237 sbuf_delete(sb); 3238 break; 3239 } 3240 case CTL_ISCSI: { 3241 struct ctl_iscsi *ci; 3242 struct ctl_frontend *fe; 3243 3244 ci = (struct ctl_iscsi *)addr; 3245 3246 fe = ctl_frontend_find("iscsi"); 3247 if (fe == NULL) { 3248 ci->status = CTL_ISCSI_ERROR; 3249 snprintf(ci->error_str, sizeof(ci->error_str), 3250 "Frontend \"iscsi\" not found."); 3251 break; 3252 } 3253 3254 retval = fe->ioctl(dev, cmd, addr, flag, td); 3255 break; 3256 } 3257 case CTL_PORT_REQ: { 3258 struct ctl_req *req; 3259 struct ctl_frontend *fe; 3260 3261 req = (struct ctl_req *)addr; 3262 3263 fe = ctl_frontend_find(req->driver); 3264 if (fe == NULL) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Frontend \"%s\" not found.", req->driver); 3268 break; 3269 } 3270 if (req->num_args > 0) { 3271 req->kern_args = ctl_copyin_args(req->num_args, 3272 req->args, req->error_str, sizeof(req->error_str)); 3273 if (req->kern_args == NULL) { 3274 req->status = CTL_LUN_ERROR; 3275 break; 3276 } 3277 } 3278 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 3281 if (req->num_args > 0) { 3282 ctl_copyout_args(req->num_args, req->kern_args); 3283 ctl_free_args(req->num_args, req->kern_args); 3284 } 3285 break; 3286 } 3287 case CTL_PORT_LIST: { 3288 struct sbuf *sb; 3289 struct ctl_port *port; 3290 struct ctl_lun_list *list; 3291 struct ctl_option *opt; 3292 3293 list = (struct ctl_lun_list *)addr; 3294 3295 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3296 if (sb == NULL) { 3297 list->status = CTL_LUN_LIST_ERROR; 3298 snprintf(list->error_str, sizeof(list->error_str), 3299 "Unable to allocate %d bytes for LUN list", 3300 list->alloc_len); 3301 break; 3302 } 3303 3304 sbuf_printf(sb, "<ctlportlist>\n"); 3305 3306 mtx_lock(&softc->ctl_lock); 3307 STAILQ_FOREACH(port, &softc->port_list, links) { 3308 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3309 (uintmax_t)port->targ_port); 3310 3311 /* 3312 * Bail out as soon as we see that we've overfilled 3313 * the buffer. 3314 */ 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3319 "</frontend_type>\n", port->frontend->name); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3324 port->port_type); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3329 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3334 port->port_name); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3339 port->physical_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3344 port->virtual_port); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3349 (uintmax_t)port->wwnn); 3350 if (retval != 0) 3351 break; 3352 3353 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3354 (uintmax_t)port->wwpn); 3355 if (retval != 0) 3356 break; 3357 3358 if (port->port_info != NULL) { 3359 retval = port->port_info(port->onoff_arg, sb); 3360 if (retval != 0) 3361 break; 3362 } 3363 STAILQ_FOREACH(opt, &port->options, links) { 3364 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3365 opt->name, opt->value, opt->name); 3366 if (retval != 0) 3367 break; 3368 } 3369 3370 retval = sbuf_printf(sb, "</targ_port>\n"); 3371 if (retval != 0) 3372 break; 3373 } 3374 mtx_unlock(&softc->ctl_lock); 3375 3376 if ((retval != 0) 3377 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3378 retval = 0; 3379 sbuf_delete(sb); 3380 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3381 snprintf(list->error_str, sizeof(list->error_str), 3382 "Out of space, %d bytes is too small", 3383 list->alloc_len); 3384 break; 3385 } 3386 3387 sbuf_finish(sb); 3388 3389 retval = copyout(sbuf_data(sb), list->lun_xml, 3390 sbuf_len(sb) + 1); 3391 3392 list->fill_len = sbuf_len(sb) + 1; 3393 list->status = CTL_LUN_LIST_OK; 3394 sbuf_delete(sb); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 if (nexus->targ_port < CTL_MAX_PORTS) 3438 return (nexus->initid.id + 3439 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3440 else 3441 return (nexus->initid.id + 3442 ((nexus->targ_port - CTL_MAX_PORTS) * 3443 CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446uint32_t 3447ctl_get_resindex(struct ctl_nexus *nexus) 3448{ 3449 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3450} 3451 3452uint32_t 3453ctl_port_idx(int port_num) 3454{ 3455 if (port_num < CTL_MAX_PORTS) 3456 return(port_num); 3457 else 3458 return(port_num - CTL_MAX_PORTS); 3459} 3460 3461static uint32_t 3462ctl_map_lun(int port_num, uint32_t lun_id) 3463{ 3464 struct ctl_port *port; 3465 3466 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3467 if (port == NULL) 3468 return (UINT32_MAX); 3469 if (port->lun_map == NULL) 3470 return (lun_id); 3471 return (port->lun_map(port->targ_lun_arg, lun_id)); 3472} 3473 3474static uint32_t 3475ctl_map_lun_back(int port_num, uint32_t lun_id) 3476{ 3477 struct ctl_port *port; 3478 uint32_t i; 3479 3480 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3481 if (port->lun_map == NULL) 3482 return (lun_id); 3483 for (i = 0; i < CTL_MAX_LUNS; i++) { 3484 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3485 return (i); 3486 } 3487 return (UINT32_MAX); 3488} 3489 3490/* 3491 * Note: This only works for bitmask sizes that are at least 32 bits, and 3492 * that are a power of 2. 3493 */ 3494int 3495ctl_ffz(uint32_t *mask, uint32_t size) 3496{ 3497 uint32_t num_chunks, num_pieces; 3498 int i, j; 3499 3500 num_chunks = (size >> 5); 3501 if (num_chunks == 0) 3502 num_chunks++; 3503 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3504 3505 for (i = 0; i < num_chunks; i++) { 3506 for (j = 0; j < num_pieces; j++) { 3507 if ((mask[i] & (1 << j)) == 0) 3508 return ((i << 5) + j); 3509 } 3510 } 3511 3512 return (-1); 3513} 3514 3515int 3516ctl_set_mask(uint32_t *mask, uint32_t bit) 3517{ 3518 uint32_t chunk, piece; 3519 3520 chunk = bit >> 5; 3521 piece = bit % (sizeof(uint32_t) * 8); 3522 3523 if ((mask[chunk] & (1 << piece)) != 0) 3524 return (-1); 3525 else 3526 mask[chunk] |= (1 << piece); 3527 3528 return (0); 3529} 3530 3531int 3532ctl_clear_mask(uint32_t *mask, uint32_t bit) 3533{ 3534 uint32_t chunk, piece; 3535 3536 chunk = bit >> 5; 3537 piece = bit % (sizeof(uint32_t) * 8); 3538 3539 if ((mask[chunk] & (1 << piece)) == 0) 3540 return (-1); 3541 else 3542 mask[chunk] &= ~(1 << piece); 3543 3544 return (0); 3545} 3546 3547int 3548ctl_is_set(uint32_t *mask, uint32_t bit) 3549{ 3550 uint32_t chunk, piece; 3551 3552 chunk = bit >> 5; 3553 piece = bit % (sizeof(uint32_t) * 8); 3554 3555 if ((mask[chunk] & (1 << piece)) == 0) 3556 return (0); 3557 else 3558 return (1); 3559} 3560 3561#ifdef unused 3562/* 3563 * The bus, target and lun are optional, they can be filled in later. 3564 * can_wait is used to determine whether we can wait on the malloc or not. 3565 */ 3566union ctl_io* 3567ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3568 uint32_t targ_lun, int can_wait) 3569{ 3570 union ctl_io *io; 3571 3572 if (can_wait) 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3574 else 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 3577 if (io != NULL) { 3578 io->io_hdr.io_type = io_type; 3579 io->io_hdr.targ_port = targ_port; 3580 /* 3581 * XXX KDM this needs to change/go away. We need to move 3582 * to a preallocated pool of ctl_scsiio structures. 3583 */ 3584 io->io_hdr.nexus.targ_target.id = targ_target; 3585 io->io_hdr.nexus.targ_lun = targ_lun; 3586 } 3587 3588 return (io); 3589} 3590 3591void 3592ctl_kfree_io(union ctl_io *io) 3593{ 3594 free(io, M_CTL); 3595} 3596#endif /* unused */ 3597 3598/* 3599 * ctl_softc, pool_type, total_ctl_io are passed in. 3600 * npool is passed out. 3601 */ 3602int 3603ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3604 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3605{ 3606 uint32_t i; 3607 union ctl_io *cur_io, *next_io; 3608 struct ctl_io_pool *pool; 3609 int retval; 3610 3611 retval = 0; 3612 3613 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3614 M_NOWAIT | M_ZERO); 3615 if (pool == NULL) { 3616 retval = ENOMEM; 3617 goto bailout; 3618 } 3619 3620 pool->type = pool_type; 3621 pool->ctl_softc = ctl_softc; 3622 3623 mtx_lock(&ctl_softc->pool_lock); 3624 pool->id = ctl_softc->cur_pool_id++; 3625 mtx_unlock(&ctl_softc->pool_lock); 3626 3627 pool->flags = CTL_POOL_FLAG_NONE; 3628 pool->refcount = 1; /* Reference for validity. */ 3629 STAILQ_INIT(&pool->free_queue); 3630 3631 /* 3632 * XXX KDM other options here: 3633 * - allocate a page at a time 3634 * - allocate one big chunk of memory. 3635 * Page allocation might work well, but would take a little more 3636 * tracking. 3637 */ 3638 for (i = 0; i < total_ctl_io; i++) { 3639 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3640 M_NOWAIT); 3641 if (cur_io == NULL) { 3642 retval = ENOMEM; 3643 break; 3644 } 3645 cur_io->io_hdr.pool = pool; 3646 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3647 pool->total_ctl_io++; 3648 pool->free_ctl_io++; 3649 } 3650 3651 if (retval != 0) { 3652 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3653 cur_io != NULL; cur_io = next_io) { 3654 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3655 links); 3656 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3657 ctl_io_hdr, links); 3658 free(cur_io, M_CTLIO); 3659 } 3660 3661 free(pool, M_CTL); 3662 goto bailout; 3663 } 3664 mtx_lock(&ctl_softc->pool_lock); 3665 ctl_softc->num_pools++; 3666 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3667 /* 3668 * Increment our usage count if this is an external consumer, so we 3669 * can't get unloaded until the external consumer (most likely a 3670 * FETD) unloads and frees his pool. 3671 * 3672 * XXX KDM will this increment the caller's module use count, or 3673 * mine? 3674 */ 3675#if 0 3676 if ((pool_type != CTL_POOL_EMERGENCY) 3677 && (pool_type != CTL_POOL_INTERNAL) 3678 && (pool_type != CTL_POOL_4OTHERSC)) 3679 MOD_INC_USE_COUNT; 3680#endif 3681 3682 mtx_unlock(&ctl_softc->pool_lock); 3683 3684 *npool = pool; 3685 3686bailout: 3687 3688 return (retval); 3689} 3690 3691static int 3692ctl_pool_acquire(struct ctl_io_pool *pool) 3693{ 3694 3695 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3696 3697 if (pool->flags & CTL_POOL_FLAG_INVALID) 3698 return (EINVAL); 3699 3700 pool->refcount++; 3701 3702 return (0); 3703} 3704 3705static void 3706ctl_pool_release(struct ctl_io_pool *pool) 3707{ 3708 struct ctl_softc *ctl_softc = pool->ctl_softc; 3709 union ctl_io *io; 3710 3711 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3712 3713 if (--pool->refcount != 0) 3714 return; 3715 3716 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3717 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3718 links); 3719 free(io, M_CTLIO); 3720 } 3721 3722 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3723 ctl_softc->num_pools--; 3724 3725 /* 3726 * XXX KDM will this decrement the caller's usage count or mine? 3727 */ 3728#if 0 3729 if ((pool->type != CTL_POOL_EMERGENCY) 3730 && (pool->type != CTL_POOL_INTERNAL) 3731 && (pool->type != CTL_POOL_4OTHERSC)) 3732 MOD_DEC_USE_COUNT; 3733#endif 3734 3735 free(pool, M_CTL); 3736} 3737 3738void 3739ctl_pool_free(struct ctl_io_pool *pool) 3740{ 3741 struct ctl_softc *ctl_softc; 3742 3743 if (pool == NULL) 3744 return; 3745 3746 ctl_softc = pool->ctl_softc; 3747 mtx_lock(&ctl_softc->pool_lock); 3748 pool->flags |= CTL_POOL_FLAG_INVALID; 3749 ctl_pool_release(pool); 3750 mtx_unlock(&ctl_softc->pool_lock); 3751} 3752 3753/* 3754 * This routine does not block (except for spinlocks of course). 3755 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3756 * possible. 3757 */ 3758union ctl_io * 3759ctl_alloc_io(void *pool_ref) 3760{ 3761 union ctl_io *io; 3762 struct ctl_softc *ctl_softc; 3763 struct ctl_io_pool *pool, *npool; 3764 struct ctl_io_pool *emergency_pool; 3765 3766 pool = (struct ctl_io_pool *)pool_ref; 3767 3768 if (pool == NULL) { 3769 printf("%s: pool is NULL\n", __func__); 3770 return (NULL); 3771 } 3772 3773 emergency_pool = NULL; 3774 3775 ctl_softc = pool->ctl_softc; 3776 3777 mtx_lock(&ctl_softc->pool_lock); 3778 /* 3779 * First, try to get the io structure from the user's pool. 3780 */ 3781 if (ctl_pool_acquire(pool) == 0) { 3782 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3783 if (io != NULL) { 3784 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3785 pool->total_allocated++; 3786 pool->free_ctl_io--; 3787 mtx_unlock(&ctl_softc->pool_lock); 3788 return (io); 3789 } else 3790 ctl_pool_release(pool); 3791 } 3792 /* 3793 * If he doesn't have any io structures left, search for an 3794 * emergency pool and grab one from there. 3795 */ 3796 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3797 if (npool->type != CTL_POOL_EMERGENCY) 3798 continue; 3799 3800 if (ctl_pool_acquire(npool) != 0) 3801 continue; 3802 3803 emergency_pool = npool; 3804 3805 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3806 if (io != NULL) { 3807 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3808 npool->total_allocated++; 3809 npool->free_ctl_io--; 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 return (io); 3812 } else 3813 ctl_pool_release(npool); 3814 } 3815 3816 /* Drop the spinlock before we malloc */ 3817 mtx_unlock(&ctl_softc->pool_lock); 3818 3819 /* 3820 * The emergency pool (if it exists) didn't have one, so try an 3821 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3822 */ 3823 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3824 if (io != NULL) { 3825 /* 3826 * If the emergency pool exists but is empty, add this 3827 * ctl_io to its list when it gets freed. 3828 */ 3829 if (emergency_pool != NULL) { 3830 mtx_lock(&ctl_softc->pool_lock); 3831 if (ctl_pool_acquire(emergency_pool) == 0) { 3832 io->io_hdr.pool = emergency_pool; 3833 emergency_pool->total_ctl_io++; 3834 /* 3835 * Need to bump this, otherwise 3836 * total_allocated and total_freed won't 3837 * match when we no longer have anything 3838 * outstanding. 3839 */ 3840 emergency_pool->total_allocated++; 3841 } 3842 mtx_unlock(&ctl_softc->pool_lock); 3843 } else 3844 io->io_hdr.pool = NULL; 3845 } 3846 3847 return (io); 3848} 3849 3850void 3851ctl_free_io(union ctl_io *io) 3852{ 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * If this ctl_io has a pool, return it to that pool. 3858 */ 3859 if (io->io_hdr.pool != NULL) { 3860 struct ctl_io_pool *pool; 3861 3862 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3863 mtx_lock(&pool->ctl_softc->pool_lock); 3864 io->io_hdr.io_type = 0xff; 3865 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3866 pool->total_freed++; 3867 pool->free_ctl_io++; 3868 ctl_pool_release(pool); 3869 mtx_unlock(&pool->ctl_softc->pool_lock); 3870 } else { 3871 /* 3872 * Otherwise, just free it. We probably malloced it and 3873 * the emergency pool wasn't available. 3874 */ 3875 free(io, M_CTLIO); 3876 } 3877 3878} 3879 3880void 3881ctl_zero_io(union ctl_io *io) 3882{ 3883 void *pool_ref; 3884 3885 if (io == NULL) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = io->io_hdr.pool; 3892 3893 memset(io, 0, sizeof(*io)); 3894 3895 io->io_hdr.pool = pool_ref; 3896} 3897 3898/* 3899 * This routine is currently used for internal copies of ctl_ios that need 3900 * to persist for some reason after we've already returned status to the 3901 * FETD. (Thus the flag set.) 3902 * 3903 * XXX XXX 3904 * Note that this makes a blind copy of all fields in the ctl_io, except 3905 * for the pool reference. This includes any memory that has been 3906 * allocated! That memory will no longer be valid after done has been 3907 * called, so this would be VERY DANGEROUS for command that actually does 3908 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3909 * start and stop commands, which don't transfer any data, so this is not a 3910 * problem. If it is used for anything else, the caller would also need to 3911 * allocate data buffer space and this routine would need to be modified to 3912 * copy the data buffer(s) as well. 3913 */ 3914void 3915ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3916{ 3917 void *pool_ref; 3918 3919 if ((src == NULL) 3920 || (dest == NULL)) 3921 return; 3922 3923 /* 3924 * May need to preserve linked list pointers at some point too. 3925 */ 3926 pool_ref = dest->io_hdr.pool; 3927 3928 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3929 3930 dest->io_hdr.pool = pool_ref; 3931 /* 3932 * We need to know that this is an internal copy, and doesn't need 3933 * to get passed back to the FETD that allocated it. 3934 */ 3935 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3936} 3937 3938#ifdef NEEDTOPORT 3939static void 3940ctl_update_power_subpage(struct copan_power_subpage *page) 3941{ 3942 int num_luns, num_partitions, config_type; 3943 struct ctl_softc *softc; 3944 cs_BOOL_t aor_present, shelf_50pct_power; 3945 cs_raidset_personality_t rs_type; 3946 int max_active_luns; 3947 3948 softc = control_softc; 3949 3950 /* subtract out the processor LUN */ 3951 num_luns = softc->num_luns - 1; 3952 /* 3953 * Default to 7 LUNs active, which was the only number we allowed 3954 * in the past. 3955 */ 3956 max_active_luns = 7; 3957 3958 num_partitions = config_GetRsPartitionInfo(); 3959 config_type = config_GetConfigType(); 3960 shelf_50pct_power = config_GetShelfPowerMode(); 3961 aor_present = config_IsAorRsPresent(); 3962 3963 rs_type = ddb_GetRsRaidType(1); 3964 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3965 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3966 EPRINT(0, "Unsupported RS type %d!", rs_type); 3967 } 3968 3969 3970 page->total_luns = num_luns; 3971 3972 switch (config_type) { 3973 case 40: 3974 /* 3975 * In a 40 drive configuration, it doesn't matter what DC 3976 * cards we have, whether we have AOR enabled or not, 3977 * partitioning or not, or what type of RAIDset we have. 3978 * In that scenario, we can power up every LUN we present 3979 * to the user. 3980 */ 3981 max_active_luns = num_luns; 3982 3983 break; 3984 case 64: 3985 if (shelf_50pct_power == CS_FALSE) { 3986 /* 25% power */ 3987 if (aor_present == CS_TRUE) { 3988 if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID5) { 3990 max_active_luns = 7; 3991 } else if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID1){ 3993 max_active_luns = 14; 3994 } else { 3995 /* XXX KDM now what?? */ 3996 } 3997 } else { 3998 if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID5) { 4000 max_active_luns = 8; 4001 } else if (rs_type == 4002 CS_RAIDSET_PERSONALITY_RAID1){ 4003 max_active_luns = 16; 4004 } else { 4005 /* XXX KDM now what?? */ 4006 } 4007 } 4008 } else { 4009 /* 50% power */ 4010 /* 4011 * With 50% power in a 64 drive configuration, we 4012 * can power all LUNs we present. 4013 */ 4014 max_active_luns = num_luns; 4015 } 4016 break; 4017 case 112: 4018 if (shelf_50pct_power == CS_FALSE) { 4019 /* 25% power */ 4020 if (aor_present == CS_TRUE) { 4021 if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID5) { 4023 max_active_luns = 7; 4024 } else if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID1){ 4026 max_active_luns = 14; 4027 } else { 4028 /* XXX KDM now what?? */ 4029 } 4030 } else { 4031 if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID5) { 4033 max_active_luns = 8; 4034 } else if (rs_type == 4035 CS_RAIDSET_PERSONALITY_RAID1){ 4036 max_active_luns = 16; 4037 } else { 4038 /* XXX KDM now what?? */ 4039 } 4040 } 4041 } else { 4042 /* 50% power */ 4043 if (aor_present == CS_TRUE) { 4044 if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID5) { 4046 max_active_luns = 14; 4047 } else if (rs_type == 4048 CS_RAIDSET_PERSONALITY_RAID1){ 4049 /* 4050 * We're assuming here that disk 4051 * caching is enabled, and so we're 4052 * able to power up half of each 4053 * LUN, and cache all writes. 4054 */ 4055 max_active_luns = num_luns; 4056 } else { 4057 /* XXX KDM now what?? */ 4058 } 4059 } else { 4060 if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID5) { 4062 max_active_luns = 15; 4063 } else if (rs_type == 4064 CS_RAIDSET_PERSONALITY_RAID1){ 4065 max_active_luns = 30; 4066 } else { 4067 /* XXX KDM now what?? */ 4068 } 4069 } 4070 } 4071 break; 4072 default: 4073 /* 4074 * In this case, we have an unknown configuration, so we 4075 * just use the default from above. 4076 */ 4077 break; 4078 } 4079 4080 page->max_active_luns = max_active_luns; 4081#if 0 4082 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4083 page->total_luns, page->max_active_luns); 4084#endif 4085} 4086#endif /* NEEDTOPORT */ 4087 4088/* 4089 * This routine could be used in the future to load default and/or saved 4090 * mode page parameters for a particuar lun. 4091 */ 4092static int 4093ctl_init_page_index(struct ctl_lun *lun) 4094{ 4095 int i; 4096 struct ctl_page_index *page_index; 4097 struct ctl_softc *softc; 4098 const char *value; 4099 4100 memcpy(&lun->mode_pages.index, page_index_template, 4101 sizeof(page_index_template)); 4102 4103 softc = lun->ctl_softc; 4104 4105 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4106 4107 page_index = &lun->mode_pages.index[i]; 4108 /* 4109 * If this is a disk-only mode page, there's no point in 4110 * setting it up. For some pages, we have to have some 4111 * basic information about the disk in order to calculate the 4112 * mode page data. 4113 */ 4114 if ((lun->be_lun->lun_type != T_DIRECT) 4115 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4116 continue; 4117 4118 switch (page_index->page_code & SMPH_PC_MASK) { 4119 case SMS_FORMAT_DEVICE_PAGE: { 4120 struct scsi_format_page *format_page; 4121 4122 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4123 panic("subpage is incorrect!"); 4124 4125 /* 4126 * Sectors per track are set above. Bytes per 4127 * sector need to be set here on a per-LUN basis. 4128 */ 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[ 4133 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4134 sizeof(format_page_changeable)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4139 &format_page_default, 4140 sizeof(format_page_default)); 4141 4142 format_page = &lun->mode_pages.format_page[ 4143 CTL_PAGE_CURRENT]; 4144 scsi_ulto2b(lun->be_lun->blocksize, 4145 format_page->bytes_per_sector); 4146 4147 format_page = &lun->mode_pages.format_page[ 4148 CTL_PAGE_DEFAULT]; 4149 scsi_ulto2b(lun->be_lun->blocksize, 4150 format_page->bytes_per_sector); 4151 4152 format_page = &lun->mode_pages.format_page[ 4153 CTL_PAGE_SAVED]; 4154 scsi_ulto2b(lun->be_lun->blocksize, 4155 format_page->bytes_per_sector); 4156 4157 page_index->page_data = 4158 (uint8_t *)lun->mode_pages.format_page; 4159 break; 4160 } 4161 case SMS_RIGID_DISK_PAGE: { 4162 struct scsi_rigid_disk_page *rigid_disk_page; 4163 uint32_t sectors_per_cylinder; 4164 uint64_t cylinders; 4165#ifndef __XSCALE__ 4166 int shift; 4167#endif /* !__XSCALE__ */ 4168 4169 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4170 panic("invalid subpage value %d", 4171 page_index->subpage); 4172 4173 /* 4174 * Rotation rate and sectors per track are set 4175 * above. We calculate the cylinders here based on 4176 * capacity. Due to the number of heads and 4177 * sectors per track we're using, smaller arrays 4178 * may turn out to have 0 cylinders. Linux and 4179 * FreeBSD don't pay attention to these mode pages 4180 * to figure out capacity, but Solaris does. It 4181 * seems to deal with 0 cylinders just fine, and 4182 * works out a fake geometry based on the capacity. 4183 */ 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4189 sizeof(rigid_disk_page_changeable)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 memcpy(&lun->mode_pages.rigid_disk_page[ 4194 CTL_PAGE_SAVED], &rigid_disk_page_default, 4195 sizeof(rigid_disk_page_default)); 4196 4197 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4198 CTL_DEFAULT_HEADS; 4199 4200 /* 4201 * The divide method here will be more accurate, 4202 * probably, but results in floating point being 4203 * used in the kernel on i386 (__udivdi3()). On the 4204 * XScale, though, __udivdi3() is implemented in 4205 * software. 4206 * 4207 * The shift method for cylinder calculation is 4208 * accurate if sectors_per_cylinder is a power of 4209 * 2. Otherwise it might be slightly off -- you 4210 * might have a bit of a truncation problem. 4211 */ 4212#ifdef __XSCALE__ 4213 cylinders = (lun->be_lun->maxlba + 1) / 4214 sectors_per_cylinder; 4215#else 4216 for (shift = 31; shift > 0; shift--) { 4217 if (sectors_per_cylinder & (1 << shift)) 4218 break; 4219 } 4220 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4221#endif 4222 4223 /* 4224 * We've basically got 3 bytes, or 24 bits for the 4225 * cylinder size in the mode page. If we're over, 4226 * just round down to 2^24. 4227 */ 4228 if (cylinders > 0xffffff) 4229 cylinders = 0xffffff; 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_CURRENT]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4236 CTL_PAGE_DEFAULT]; 4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4238 4239 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4240 CTL_PAGE_SAVED]; 4241 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4242 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.rigid_disk_page; 4245 break; 4246 } 4247 case SMS_CACHING_PAGE: { 4248 struct scsi_caching_page *caching_page; 4249 4250 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4251 panic("invalid subpage value %d", 4252 page_index->subpage); 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 caching_page = &lun->mode_pages.caching_page[ 4263 CTL_PAGE_SAVED]; 4264 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4265 if (value != NULL && strcmp(value, "off") == 0) 4266 caching_page->flags1 &= ~SCP_WCE; 4267 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4268 if (value != NULL && strcmp(value, "off") == 0) 4269 caching_page->flags1 |= SCP_RCD; 4270 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4272 sizeof(caching_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.caching_page; 4275 break; 4276 } 4277 case SMS_CONTROL_MODE_PAGE: { 4278 struct scsi_control_page *control_page; 4279 4280 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4281 panic("invalid subpage value %d", 4282 page_index->subpage); 4283 4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4285 &control_page_default, 4286 sizeof(control_page_default)); 4287 memcpy(&lun->mode_pages.control_page[ 4288 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4289 sizeof(control_page_changeable)); 4290 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4291 &control_page_default, 4292 sizeof(control_page_default)); 4293 control_page = &lun->mode_pages.control_page[ 4294 CTL_PAGE_SAVED]; 4295 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4296 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4297 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4298 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4299 } 4300 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4301 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4302 sizeof(control_page_default)); 4303 page_index->page_data = 4304 (uint8_t *)lun->mode_pages.control_page; 4305 break; 4306 4307 } 4308 case SMS_VENDOR_SPECIFIC_PAGE:{ 4309 switch (page_index->subpage) { 4310 case PWR_SUBPAGE_CODE: { 4311 struct copan_power_subpage *current_page, 4312 *saved_page; 4313 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_CURRENT], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 memcpy(&lun->mode_pages.power_subpage[ 4319 CTL_PAGE_CHANGEABLE], 4320 &power_page_changeable, 4321 sizeof(power_page_changeable)); 4322 memcpy(&lun->mode_pages.power_subpage[ 4323 CTL_PAGE_DEFAULT], 4324 &power_page_default, 4325 sizeof(power_page_default)); 4326 memcpy(&lun->mode_pages.power_subpage[ 4327 CTL_PAGE_SAVED], 4328 &power_page_default, 4329 sizeof(power_page_default)); 4330 page_index->page_data = 4331 (uint8_t *)lun->mode_pages.power_subpage; 4332 4333 current_page = (struct copan_power_subpage *) 4334 (page_index->page_data + 4335 (page_index->page_len * 4336 CTL_PAGE_CURRENT)); 4337 saved_page = (struct copan_power_subpage *) 4338 (page_index->page_data + 4339 (page_index->page_len * 4340 CTL_PAGE_SAVED)); 4341 break; 4342 } 4343 case APS_SUBPAGE_CODE: { 4344 struct copan_aps_subpage *current_page, 4345 *saved_page; 4346 4347 // This gets set multiple times but 4348 // it should always be the same. It's 4349 // only done during init so who cares. 4350 index_to_aps_page = i; 4351 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_CURRENT], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 memcpy(&lun->mode_pages.aps_subpage[ 4357 CTL_PAGE_CHANGEABLE], 4358 &aps_page_changeable, 4359 sizeof(aps_page_changeable)); 4360 memcpy(&lun->mode_pages.aps_subpage[ 4361 CTL_PAGE_DEFAULT], 4362 &aps_page_default, 4363 sizeof(aps_page_default)); 4364 memcpy(&lun->mode_pages.aps_subpage[ 4365 CTL_PAGE_SAVED], 4366 &aps_page_default, 4367 sizeof(aps_page_default)); 4368 page_index->page_data = 4369 (uint8_t *)lun->mode_pages.aps_subpage; 4370 4371 current_page = (struct copan_aps_subpage *) 4372 (page_index->page_data + 4373 (page_index->page_len * 4374 CTL_PAGE_CURRENT)); 4375 saved_page = (struct copan_aps_subpage *) 4376 (page_index->page_data + 4377 (page_index->page_len * 4378 CTL_PAGE_SAVED)); 4379 break; 4380 } 4381 case DBGCNF_SUBPAGE_CODE: { 4382 struct copan_debugconf_subpage *current_page, 4383 *saved_page; 4384 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_CURRENT], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 memcpy(&lun->mode_pages.debugconf_subpage[ 4390 CTL_PAGE_CHANGEABLE], 4391 &debugconf_page_changeable, 4392 sizeof(debugconf_page_changeable)); 4393 memcpy(&lun->mode_pages.debugconf_subpage[ 4394 CTL_PAGE_DEFAULT], 4395 &debugconf_page_default, 4396 sizeof(debugconf_page_default)); 4397 memcpy(&lun->mode_pages.debugconf_subpage[ 4398 CTL_PAGE_SAVED], 4399 &debugconf_page_default, 4400 sizeof(debugconf_page_default)); 4401 page_index->page_data = 4402 (uint8_t *)lun->mode_pages.debugconf_subpage; 4403 4404 current_page = (struct copan_debugconf_subpage *) 4405 (page_index->page_data + 4406 (page_index->page_len * 4407 CTL_PAGE_CURRENT)); 4408 saved_page = (struct copan_debugconf_subpage *) 4409 (page_index->page_data + 4410 (page_index->page_len * 4411 CTL_PAGE_SAVED)); 4412 break; 4413 } 4414 default: 4415 panic("invalid subpage value %d", 4416 page_index->subpage); 4417 break; 4418 } 4419 break; 4420 } 4421 default: 4422 panic("invalid page value %d", 4423 page_index->page_code & SMPH_PC_MASK); 4424 break; 4425 } 4426 } 4427 4428 return (CTL_RETVAL_COMPLETE); 4429} 4430 4431/* 4432 * LUN allocation. 4433 * 4434 * Requirements: 4435 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4436 * wants us to allocate the LUN and he can block. 4437 * - ctl_softc is always set 4438 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4439 * 4440 * Returns 0 for success, non-zero (errno) for failure. 4441 */ 4442static int 4443ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4444 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4445{ 4446 struct ctl_lun *nlun, *lun; 4447 struct ctl_port *port; 4448 struct scsi_vpd_id_descriptor *desc; 4449 struct scsi_vpd_id_t10 *t10id; 4450 const char *eui, *naa, *scsiname, *vendor; 4451 int lun_number, i, lun_malloced; 4452 int devidlen, idlen1, idlen2 = 0, len; 4453 4454 if (be_lun == NULL) 4455 return (EINVAL); 4456 4457 /* 4458 * We currently only support Direct Access or Processor LUN types. 4459 */ 4460 switch (be_lun->lun_type) { 4461 case T_DIRECT: 4462 break; 4463 case T_PROCESSOR: 4464 break; 4465 case T_SEQUENTIAL: 4466 case T_CHANGER: 4467 default: 4468 be_lun->lun_config_status(be_lun->be_lun, 4469 CTL_LUN_CONFIG_FAILURE); 4470 break; 4471 } 4472 if (ctl_lun == NULL) { 4473 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4474 lun_malloced = 1; 4475 } else { 4476 lun_malloced = 0; 4477 lun = ctl_lun; 4478 } 4479 4480 memset(lun, 0, sizeof(*lun)); 4481 if (lun_malloced) 4482 lun->flags = CTL_LUN_MALLOCED; 4483 4484 /* Generate LUN ID. */ 4485 devidlen = max(CTL_DEVID_MIN_LEN, 4486 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4487 idlen1 = sizeof(*t10id) + devidlen; 4488 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4489 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4490 if (scsiname != NULL) { 4491 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4492 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4493 } 4494 eui = ctl_get_opt(&be_lun->options, "eui"); 4495 if (eui != NULL) { 4496 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4497 } 4498 naa = ctl_get_opt(&be_lun->options, "naa"); 4499 if (naa != NULL) { 4500 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4501 } 4502 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4503 M_CTL, M_WAITOK | M_ZERO); 4504 lun->lun_devid->len = len; 4505 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4506 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4507 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4508 desc->length = idlen1; 4509 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4510 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4511 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4512 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4513 } else { 4514 strncpy(t10id->vendor, vendor, 4515 min(sizeof(t10id->vendor), strlen(vendor))); 4516 } 4517 strncpy((char *)t10id->vendor_spec_id, 4518 (char *)be_lun->device_id, devidlen); 4519 if (scsiname != NULL) { 4520 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4521 desc->length); 4522 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4523 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4524 SVPD_ID_TYPE_SCSI_NAME; 4525 desc->length = idlen2; 4526 strlcpy(desc->identifier, scsiname, idlen2); 4527 } 4528 if (eui != NULL) { 4529 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4530 desc->length); 4531 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4532 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4533 SVPD_ID_TYPE_EUI64; 4534 desc->length = 8; 4535 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4536 } 4537 if (naa != NULL) { 4538 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4539 desc->length); 4540 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4541 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4542 SVPD_ID_TYPE_NAA; 4543 desc->length = 8; 4544 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4545 } 4546 4547 mtx_lock(&ctl_softc->ctl_lock); 4548 /* 4549 * See if the caller requested a particular LUN number. If so, see 4550 * if it is available. Otherwise, allocate the first available LUN. 4551 */ 4552 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4553 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4554 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4555 mtx_unlock(&ctl_softc->ctl_lock); 4556 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4557 printf("ctl: requested LUN ID %d is higher " 4558 "than CTL_MAX_LUNS - 1 (%d)\n", 4559 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4560 } else { 4561 /* 4562 * XXX KDM return an error, or just assign 4563 * another LUN ID in this case?? 4564 */ 4565 printf("ctl: requested LUN ID %d is already " 4566 "in use\n", be_lun->req_lun_id); 4567 } 4568 if (lun->flags & CTL_LUN_MALLOCED) 4569 free(lun, M_CTL); 4570 be_lun->lun_config_status(be_lun->be_lun, 4571 CTL_LUN_CONFIG_FAILURE); 4572 return (ENOSPC); 4573 } 4574 lun_number = be_lun->req_lun_id; 4575 } else { 4576 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4577 if (lun_number == -1) { 4578 mtx_unlock(&ctl_softc->ctl_lock); 4579 printf("ctl: can't allocate LUN on target %ju, out of " 4580 "LUNs\n", (uintmax_t)target_id.id); 4581 if (lun->flags & CTL_LUN_MALLOCED) 4582 free(lun, M_CTL); 4583 be_lun->lun_config_status(be_lun->be_lun, 4584 CTL_LUN_CONFIG_FAILURE); 4585 return (ENOSPC); 4586 } 4587 } 4588 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4589 4590 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4591 lun->target = target_id; 4592 lun->lun = lun_number; 4593 lun->be_lun = be_lun; 4594 /* 4595 * The processor LUN is always enabled. Disk LUNs come on line 4596 * disabled, and must be enabled by the backend. 4597 */ 4598 lun->flags |= CTL_LUN_DISABLED; 4599 lun->backend = be_lun->be; 4600 be_lun->ctl_lun = lun; 4601 be_lun->lun_id = lun_number; 4602 atomic_add_int(&be_lun->be->num_luns, 1); 4603 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4604 lun->flags |= CTL_LUN_STOPPED; 4605 4606 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4607 lun->flags |= CTL_LUN_INOPERABLE; 4608 4609 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4610 lun->flags |= CTL_LUN_PRIMARY_SC; 4611 4612 lun->ctl_softc = ctl_softc; 4613 TAILQ_INIT(&lun->ooa_queue); 4614 TAILQ_INIT(&lun->blocked_queue); 4615 STAILQ_INIT(&lun->error_list); 4616 ctl_tpc_lun_init(lun); 4617 4618 /* 4619 * Initialize the mode page index. 4620 */ 4621 ctl_init_page_index(lun); 4622 4623 /* 4624 * Set the poweron UA for all initiators on this LUN only. 4625 */ 4626 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4627 lun->pending_ua[i] = CTL_UA_POWERON; 4628 4629 /* 4630 * Now, before we insert this lun on the lun list, set the lun 4631 * inventory changed UA for all other luns. 4632 */ 4633 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4634 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4635 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4636 } 4637 } 4638 4639 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4640 4641 ctl_softc->ctl_luns[lun_number] = lun; 4642 4643 ctl_softc->num_luns++; 4644 4645 /* Setup statistics gathering */ 4646 lun->stats.device_type = be_lun->lun_type; 4647 lun->stats.lun_number = lun_number; 4648 if (lun->stats.device_type == T_DIRECT) 4649 lun->stats.blocksize = be_lun->blocksize; 4650 else 4651 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4652 for (i = 0;i < CTL_MAX_PORTS;i++) 4653 lun->stats.ports[i].targ_port = i; 4654 4655 mtx_unlock(&ctl_softc->ctl_lock); 4656 4657 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4658 4659 /* 4660 * Run through each registered FETD and bring it online if it isn't 4661 * already. Enable the target ID if it hasn't been enabled, and 4662 * enable this particular LUN. 4663 */ 4664 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4665 int retval; 4666 4667 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4668 if (retval != 0) { 4669 printf("ctl_alloc_lun: FETD %s port %d returned error " 4670 "%d for lun_enable on target %ju lun %d\n", 4671 port->port_name, port->targ_port, retval, 4672 (uintmax_t)target_id.id, lun_number); 4673 } else 4674 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4675 } 4676 return (0); 4677} 4678 4679/* 4680 * Delete a LUN. 4681 * Assumptions: 4682 * - LUN has already been marked invalid and any pending I/O has been taken 4683 * care of. 4684 */ 4685static int 4686ctl_free_lun(struct ctl_lun *lun) 4687{ 4688 struct ctl_softc *softc; 4689#if 0 4690 struct ctl_port *port; 4691#endif 4692 struct ctl_lun *nlun; 4693 int i; 4694 4695 softc = lun->ctl_softc; 4696 4697 mtx_assert(&softc->ctl_lock, MA_OWNED); 4698 4699 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4700 4701 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4702 4703 softc->ctl_luns[lun->lun] = NULL; 4704 4705 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4706 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4707 4708 softc->num_luns--; 4709 4710 /* 4711 * XXX KDM this scheme only works for a single target/multiple LUN 4712 * setup. It needs to be revamped for a multiple target scheme. 4713 * 4714 * XXX KDM this results in port->lun_disable() getting called twice, 4715 * once when ctl_disable_lun() is called, and a second time here. 4716 * We really need to re-think the LUN disable semantics. There 4717 * should probably be several steps/levels to LUN removal: 4718 * - disable 4719 * - invalidate 4720 * - free 4721 * 4722 * Right now we only have a disable method when communicating to 4723 * the front end ports, at least for individual LUNs. 4724 */ 4725#if 0 4726 STAILQ_FOREACH(port, &softc->port_list, links) { 4727 int retval; 4728 4729 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4730 lun->lun); 4731 if (retval != 0) { 4732 printf("ctl_free_lun: FETD %s port %d returned error " 4733 "%d for lun_disable on target %ju lun %jd\n", 4734 port->port_name, port->targ_port, retval, 4735 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4736 } 4737 4738 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4739 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4740 4741 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4742 if (retval != 0) { 4743 printf("ctl_free_lun: FETD %s port %d " 4744 "returned error %d for targ_disable on " 4745 "target %ju\n", port->port_name, 4746 port->targ_port, retval, 4747 (uintmax_t)lun->target.id); 4748 } else 4749 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4750 4751 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4752 continue; 4753 4754#if 0 4755 port->port_offline(port->onoff_arg); 4756 port->status &= ~CTL_PORT_STATUS_ONLINE; 4757#endif 4758 } 4759 } 4760#endif 4761 4762 /* 4763 * Tell the backend to free resources, if this LUN has a backend. 4764 */ 4765 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4766 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4767 4768 ctl_tpc_lun_shutdown(lun); 4769 mtx_destroy(&lun->lun_lock); 4770 free(lun->lun_devid, M_CTL); 4771 if (lun->flags & CTL_LUN_MALLOCED) 4772 free(lun, M_CTL); 4773 4774 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4776 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4777 } 4778 } 4779 4780 return (0); 4781} 4782 4783static void 4784ctl_create_lun(struct ctl_be_lun *be_lun) 4785{ 4786 struct ctl_softc *ctl_softc; 4787 4788 ctl_softc = control_softc; 4789 4790 /* 4791 * ctl_alloc_lun() should handle all potential failure cases. 4792 */ 4793 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4794} 4795 4796int 4797ctl_add_lun(struct ctl_be_lun *be_lun) 4798{ 4799 struct ctl_softc *ctl_softc = control_softc; 4800 4801 mtx_lock(&ctl_softc->ctl_lock); 4802 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4803 mtx_unlock(&ctl_softc->ctl_lock); 4804 wakeup(&ctl_softc->pending_lun_queue); 4805 4806 return (0); 4807} 4808 4809int 4810ctl_enable_lun(struct ctl_be_lun *be_lun) 4811{ 4812 struct ctl_softc *ctl_softc; 4813 struct ctl_port *port, *nport; 4814 struct ctl_lun *lun; 4815 int retval; 4816 4817 ctl_softc = control_softc; 4818 4819 lun = (struct ctl_lun *)be_lun->ctl_lun; 4820 4821 mtx_lock(&ctl_softc->ctl_lock); 4822 mtx_lock(&lun->lun_lock); 4823 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4824 /* 4825 * eh? Why did we get called if the LUN is already 4826 * enabled? 4827 */ 4828 mtx_unlock(&lun->lun_lock); 4829 mtx_unlock(&ctl_softc->ctl_lock); 4830 return (0); 4831 } 4832 lun->flags &= ~CTL_LUN_DISABLED; 4833 mtx_unlock(&lun->lun_lock); 4834 4835 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4836 nport = STAILQ_NEXT(port, links); 4837 4838 /* 4839 * Drop the lock while we call the FETD's enable routine. 4840 * This can lead to a callback into CTL (at least in the 4841 * case of the internal initiator frontend. 4842 */ 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4845 mtx_lock(&ctl_softc->ctl_lock); 4846 if (retval != 0) { 4847 printf("%s: FETD %s port %d returned error " 4848 "%d for lun_enable on target %ju lun %jd\n", 4849 __func__, port->port_name, port->targ_port, retval, 4850 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4851 } 4852#if 0 4853 else { 4854 /* NOTE: TODO: why does lun enable affect port status? */ 4855 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4856 } 4857#endif 4858 } 4859 4860 mtx_unlock(&ctl_softc->ctl_lock); 4861 4862 return (0); 4863} 4864 4865int 4866ctl_disable_lun(struct ctl_be_lun *be_lun) 4867{ 4868 struct ctl_softc *ctl_softc; 4869 struct ctl_port *port; 4870 struct ctl_lun *lun; 4871 int retval; 4872 4873 ctl_softc = control_softc; 4874 4875 lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&ctl_softc->ctl_lock); 4878 mtx_lock(&lun->lun_lock); 4879 if (lun->flags & CTL_LUN_DISABLED) { 4880 mtx_unlock(&lun->lun_lock); 4881 mtx_unlock(&ctl_softc->ctl_lock); 4882 return (0); 4883 } 4884 lun->flags |= CTL_LUN_DISABLED; 4885 mtx_unlock(&lun->lun_lock); 4886 4887 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4888 mtx_unlock(&ctl_softc->ctl_lock); 4889 /* 4890 * Drop the lock before we call the frontend's disable 4891 * routine, to avoid lock order reversals. 4892 * 4893 * XXX KDM what happens if the frontend list changes while 4894 * we're traversing it? It's unlikely, but should be handled. 4895 */ 4896 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4897 lun->lun); 4898 mtx_lock(&ctl_softc->ctl_lock); 4899 if (retval != 0) { 4900 printf("ctl_alloc_lun: FETD %s port %d returned error " 4901 "%d for lun_disable on target %ju lun %jd\n", 4902 port->port_name, port->targ_port, retval, 4903 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4904 } 4905 } 4906 4907 mtx_unlock(&ctl_softc->ctl_lock); 4908 4909 return (0); 4910} 4911 4912int 4913ctl_start_lun(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_softc *ctl_softc; 4916 struct ctl_lun *lun; 4917 4918 ctl_softc = control_softc; 4919 4920 lun = (struct ctl_lun *)be_lun->ctl_lun; 4921 4922 mtx_lock(&lun->lun_lock); 4923 lun->flags &= ~CTL_LUN_STOPPED; 4924 mtx_unlock(&lun->lun_lock); 4925 4926 return (0); 4927} 4928 4929int 4930ctl_stop_lun(struct ctl_be_lun *be_lun) 4931{ 4932 struct ctl_softc *ctl_softc; 4933 struct ctl_lun *lun; 4934 4935 ctl_softc = control_softc; 4936 4937 lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 4939 mtx_lock(&lun->lun_lock); 4940 lun->flags |= CTL_LUN_STOPPED; 4941 mtx_unlock(&lun->lun_lock); 4942 4943 return (0); 4944} 4945 4946int 4947ctl_lun_offline(struct ctl_be_lun *be_lun) 4948{ 4949 struct ctl_softc *ctl_softc; 4950 struct ctl_lun *lun; 4951 4952 ctl_softc = control_softc; 4953 4954 lun = (struct ctl_lun *)be_lun->ctl_lun; 4955 4956 mtx_lock(&lun->lun_lock); 4957 lun->flags |= CTL_LUN_OFFLINE; 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961} 4962 4963int 4964ctl_lun_online(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_lun *lun; 4968 4969 ctl_softc = control_softc; 4970 4971 lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 lun->flags &= ~CTL_LUN_OFFLINE; 4975 mtx_unlock(&lun->lun_lock); 4976 4977 return (0); 4978} 4979 4980int 4981ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_softc *ctl_softc; 4984 struct ctl_lun *lun; 4985 4986 ctl_softc = control_softc; 4987 4988 lun = (struct ctl_lun *)be_lun->ctl_lun; 4989 4990 mtx_lock(&lun->lun_lock); 4991 4992 /* 4993 * The LUN needs to be disabled before it can be marked invalid. 4994 */ 4995 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4996 mtx_unlock(&lun->lun_lock); 4997 return (-1); 4998 } 4999 /* 5000 * Mark the LUN invalid. 5001 */ 5002 lun->flags |= CTL_LUN_INVALID; 5003 5004 /* 5005 * If there is nothing in the OOA queue, go ahead and free the LUN. 5006 * If we have something in the OOA queue, we'll free it when the 5007 * last I/O completes. 5008 */ 5009 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5010 mtx_unlock(&lun->lun_lock); 5011 mtx_lock(&ctl_softc->ctl_lock); 5012 ctl_free_lun(lun); 5013 mtx_unlock(&ctl_softc->ctl_lock); 5014 } else 5015 mtx_unlock(&lun->lun_lock); 5016 5017 return (0); 5018} 5019 5020int 5021ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5022{ 5023 struct ctl_softc *ctl_softc; 5024 struct ctl_lun *lun; 5025 5026 ctl_softc = control_softc; 5027 lun = (struct ctl_lun *)be_lun->ctl_lun; 5028 5029 mtx_lock(&lun->lun_lock); 5030 lun->flags |= CTL_LUN_INOPERABLE; 5031 mtx_unlock(&lun->lun_lock); 5032 5033 return (0); 5034} 5035 5036int 5037ctl_lun_operable(struct ctl_be_lun *be_lun) 5038{ 5039 struct ctl_softc *ctl_softc; 5040 struct ctl_lun *lun; 5041 5042 ctl_softc = control_softc; 5043 lun = (struct ctl_lun *)be_lun->ctl_lun; 5044 5045 mtx_lock(&lun->lun_lock); 5046 lun->flags &= ~CTL_LUN_INOPERABLE; 5047 mtx_unlock(&lun->lun_lock); 5048 5049 return (0); 5050} 5051 5052int 5053ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5054 int lock) 5055{ 5056 struct ctl_softc *softc; 5057 struct ctl_lun *lun; 5058 struct copan_aps_subpage *current_sp; 5059 struct ctl_page_index *page_index; 5060 int i; 5061 5062 softc = control_softc; 5063 5064 mtx_lock(&softc->ctl_lock); 5065 5066 lun = (struct ctl_lun *)be_lun->ctl_lun; 5067 mtx_lock(&lun->lun_lock); 5068 5069 page_index = NULL; 5070 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5071 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5072 APS_PAGE_CODE) 5073 continue; 5074 5075 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5076 continue; 5077 page_index = &lun->mode_pages.index[i]; 5078 } 5079 5080 if (page_index == NULL) { 5081 mtx_unlock(&lun->lun_lock); 5082 mtx_unlock(&softc->ctl_lock); 5083 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5084 (uintmax_t)lun->lun); 5085 return (1); 5086 } 5087#if 0 5088 if ((softc->aps_locked_lun != 0) 5089 && (softc->aps_locked_lun != lun->lun)) { 5090 printf("%s: attempt to lock LUN %llu when %llu is already " 5091 "locked\n"); 5092 mtx_unlock(&lun->lun_lock); 5093 mtx_unlock(&softc->ctl_lock); 5094 return (1); 5095 } 5096#endif 5097 5098 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5099 (page_index->page_len * CTL_PAGE_CURRENT)); 5100 5101 if (lock != 0) { 5102 current_sp->lock_active = APS_LOCK_ACTIVE; 5103 softc->aps_locked_lun = lun->lun; 5104 } else { 5105 current_sp->lock_active = 0; 5106 softc->aps_locked_lun = 0; 5107 } 5108 5109 5110 /* 5111 * If we're in HA mode, try to send the lock message to the other 5112 * side. 5113 */ 5114 if (ctl_is_single == 0) { 5115 int isc_retval; 5116 union ctl_ha_msg lock_msg; 5117 5118 lock_msg.hdr.nexus = *nexus; 5119 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5120 if (lock != 0) 5121 lock_msg.aps.lock_flag = 1; 5122 else 5123 lock_msg.aps.lock_flag = 0; 5124 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5125 sizeof(lock_msg), 0); 5126 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5127 printf("%s: APS (lock=%d) error returned from " 5128 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5129 mtx_unlock(&lun->lun_lock); 5130 mtx_unlock(&softc->ctl_lock); 5131 return (1); 5132 } 5133 } 5134 5135 mtx_unlock(&lun->lun_lock); 5136 mtx_unlock(&softc->ctl_lock); 5137 5138 return (0); 5139} 5140 5141void 5142ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5143{ 5144 struct ctl_lun *lun; 5145 struct ctl_softc *softc; 5146 int i; 5147 5148 softc = control_softc; 5149 5150 lun = (struct ctl_lun *)be_lun->ctl_lun; 5151 5152 mtx_lock(&lun->lun_lock); 5153 5154 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5155 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5156 5157 mtx_unlock(&lun->lun_lock); 5158} 5159 5160/* 5161 * Backend "memory move is complete" callback for requests that never 5162 * make it down to say RAIDCore's configuration code. 5163 */ 5164int 5165ctl_config_move_done(union ctl_io *io) 5166{ 5167 int retval; 5168 5169 retval = CTL_RETVAL_COMPLETE; 5170 5171 5172 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5173 /* 5174 * XXX KDM this shouldn't happen, but what if it does? 5175 */ 5176 if (io->io_hdr.io_type != CTL_IO_SCSI) 5177 panic("I/O type isn't CTL_IO_SCSI!"); 5178 5179 if ((io->io_hdr.port_status == 0) 5180 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5181 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5182 io->io_hdr.status = CTL_SUCCESS; 5183 else if ((io->io_hdr.port_status != 0) 5184 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5185 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5186 /* 5187 * For hardware error sense keys, the sense key 5188 * specific value is defined to be a retry count, 5189 * but we use it to pass back an internal FETD 5190 * error code. XXX KDM Hopefully the FETD is only 5191 * using 16 bits for an error code, since that's 5192 * all the space we have in the sks field. 5193 */ 5194 ctl_set_internal_failure(&io->scsiio, 5195 /*sks_valid*/ 1, 5196 /*retry_count*/ 5197 io->io_hdr.port_status); 5198 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5199 free(io->scsiio.kern_data_ptr, M_CTL); 5200 ctl_done(io); 5201 goto bailout; 5202 } 5203 5204 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5205 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5206 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5207 /* 5208 * XXX KDM just assuming a single pointer here, and not a 5209 * S/G list. If we start using S/G lists for config data, 5210 * we'll need to know how to clean them up here as well. 5211 */ 5212 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5213 free(io->scsiio.kern_data_ptr, M_CTL); 5214 /* Hopefully the user has already set the status... */ 5215 ctl_done(io); 5216 } else { 5217 /* 5218 * XXX KDM now we need to continue data movement. Some 5219 * options: 5220 * - call ctl_scsiio() again? We don't do this for data 5221 * writes, because for those at least we know ahead of 5222 * time where the write will go and how long it is. For 5223 * config writes, though, that information is largely 5224 * contained within the write itself, thus we need to 5225 * parse out the data again. 5226 * 5227 * - Call some other function once the data is in? 5228 */ 5229 5230 /* 5231 * XXX KDM call ctl_scsiio() again for now, and check flag 5232 * bits to see whether we're allocated or not. 5233 */ 5234 retval = ctl_scsiio(&io->scsiio); 5235 } 5236bailout: 5237 return (retval); 5238} 5239 5240/* 5241 * This gets called by a backend driver when it is done with a 5242 * data_submit method. 5243 */ 5244void 5245ctl_data_submit_done(union ctl_io *io) 5246{ 5247 /* 5248 * If the IO_CONT flag is set, we need to call the supplied 5249 * function to continue processing the I/O, instead of completing 5250 * the I/O just yet. 5251 * 5252 * If there is an error, though, we don't want to keep processing. 5253 * Instead, just send status back to the initiator. 5254 */ 5255 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5256 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5257 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5258 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5259 io->scsiio.io_cont(io); 5260 return; 5261 } 5262 ctl_done(io); 5263} 5264 5265/* 5266 * This gets called by a backend driver when it is done with a 5267 * configuration write. 5268 */ 5269void 5270ctl_config_write_done(union ctl_io *io) 5271{ 5272 uint8_t *buf; 5273 5274 /* 5275 * If the IO_CONT flag is set, we need to call the supplied 5276 * function to continue processing the I/O, instead of completing 5277 * the I/O just yet. 5278 * 5279 * If there is an error, though, we don't want to keep processing. 5280 * Instead, just send status back to the initiator. 5281 */ 5282 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5283 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5284 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5285 io->scsiio.io_cont(io); 5286 return; 5287 } 5288 /* 5289 * Since a configuration write can be done for commands that actually 5290 * have data allocated, like write buffer, and commands that have 5291 * no data, like start/stop unit, we need to check here. 5292 */ 5293 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5294 buf = io->scsiio.kern_data_ptr; 5295 else 5296 buf = NULL; 5297 ctl_done(io); 5298 if (buf) 5299 free(buf, M_CTL); 5300} 5301 5302/* 5303 * SCSI release command. 5304 */ 5305int 5306ctl_scsi_release(struct ctl_scsiio *ctsio) 5307{ 5308 int length, longid, thirdparty_id, resv_id; 5309 struct ctl_softc *ctl_softc; 5310 struct ctl_lun *lun; 5311 uint32_t residx; 5312 5313 length = 0; 5314 resv_id = 0; 5315 5316 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5317 5318 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5320 ctl_softc = control_softc; 5321 5322 switch (ctsio->cdb[0]) { 5323 case RELEASE_10: { 5324 struct scsi_release_10 *cdb; 5325 5326 cdb = (struct scsi_release_10 *)ctsio->cdb; 5327 5328 if (cdb->byte2 & SR10_LONGID) 5329 longid = 1; 5330 else 5331 thirdparty_id = cdb->thirdparty_id; 5332 5333 resv_id = cdb->resv_id; 5334 length = scsi_2btoul(cdb->length); 5335 break; 5336 } 5337 } 5338 5339 5340 /* 5341 * XXX KDM right now, we only support LUN reservation. We don't 5342 * support 3rd party reservations, or extent reservations, which 5343 * might actually need the parameter list. If we've gotten this 5344 * far, we've got a LUN reservation. Anything else got kicked out 5345 * above. So, according to SPC, ignore the length. 5346 */ 5347 length = 0; 5348 5349 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5350 && (length > 0)) { 5351 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5352 ctsio->kern_data_len = length; 5353 ctsio->kern_total_len = length; 5354 ctsio->kern_data_resid = 0; 5355 ctsio->kern_rel_offset = 0; 5356 ctsio->kern_sg_entries = 0; 5357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5358 ctsio->be_move_done = ctl_config_move_done; 5359 ctl_datamove((union ctl_io *)ctsio); 5360 5361 return (CTL_RETVAL_COMPLETE); 5362 } 5363 5364 if (length > 0) 5365 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5366 5367 mtx_lock(&lun->lun_lock); 5368 5369 /* 5370 * According to SPC, it is not an error for an intiator to attempt 5371 * to release a reservation on a LUN that isn't reserved, or that 5372 * is reserved by another initiator. The reservation can only be 5373 * released, though, by the initiator who made it or by one of 5374 * several reset type events. 5375 */ 5376 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5377 lun->flags &= ~CTL_LUN_RESERVED; 5378 5379 mtx_unlock(&lun->lun_lock); 5380 5381 ctsio->scsi_status = SCSI_STATUS_OK; 5382 ctsio->io_hdr.status = CTL_SUCCESS; 5383 5384 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5385 free(ctsio->kern_data_ptr, M_CTL); 5386 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5387 } 5388 5389 ctl_done((union ctl_io *)ctsio); 5390 return (CTL_RETVAL_COMPLETE); 5391} 5392 5393int 5394ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5395{ 5396 int extent, thirdparty, longid; 5397 int resv_id, length; 5398 uint64_t thirdparty_id; 5399 struct ctl_softc *ctl_softc; 5400 struct ctl_lun *lun; 5401 uint32_t residx; 5402 5403 extent = 0; 5404 thirdparty = 0; 5405 longid = 0; 5406 resv_id = 0; 5407 length = 0; 5408 thirdparty_id = 0; 5409 5410 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5411 5412 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5413 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5414 ctl_softc = control_softc; 5415 5416 switch (ctsio->cdb[0]) { 5417 case RESERVE_10: { 5418 struct scsi_reserve_10 *cdb; 5419 5420 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5421 5422 if (cdb->byte2 & SR10_LONGID) 5423 longid = 1; 5424 else 5425 thirdparty_id = cdb->thirdparty_id; 5426 5427 resv_id = cdb->resv_id; 5428 length = scsi_2btoul(cdb->length); 5429 break; 5430 } 5431 } 5432 5433 /* 5434 * XXX KDM right now, we only support LUN reservation. We don't 5435 * support 3rd party reservations, or extent reservations, which 5436 * might actually need the parameter list. If we've gotten this 5437 * far, we've got a LUN reservation. Anything else got kicked out 5438 * above. So, according to SPC, ignore the length. 5439 */ 5440 length = 0; 5441 5442 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5443 && (length > 0)) { 5444 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5445 ctsio->kern_data_len = length; 5446 ctsio->kern_total_len = length; 5447 ctsio->kern_data_resid = 0; 5448 ctsio->kern_rel_offset = 0; 5449 ctsio->kern_sg_entries = 0; 5450 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5451 ctsio->be_move_done = ctl_config_move_done; 5452 ctl_datamove((union ctl_io *)ctsio); 5453 5454 return (CTL_RETVAL_COMPLETE); 5455 } 5456 5457 if (length > 0) 5458 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5459 5460 mtx_lock(&lun->lun_lock); 5461 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5462 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5463 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5464 goto bailout; 5465 } 5466 5467 lun->flags |= CTL_LUN_RESERVED; 5468 lun->res_idx = residx; 5469 5470 ctsio->scsi_status = SCSI_STATUS_OK; 5471 ctsio->io_hdr.status = CTL_SUCCESS; 5472 5473bailout: 5474 mtx_unlock(&lun->lun_lock); 5475 5476 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5477 free(ctsio->kern_data_ptr, M_CTL); 5478 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5479 } 5480 5481 ctl_done((union ctl_io *)ctsio); 5482 return (CTL_RETVAL_COMPLETE); 5483} 5484 5485int 5486ctl_start_stop(struct ctl_scsiio *ctsio) 5487{ 5488 struct scsi_start_stop_unit *cdb; 5489 struct ctl_lun *lun; 5490 struct ctl_softc *ctl_softc; 5491 int retval; 5492 5493 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5494 5495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5496 ctl_softc = control_softc; 5497 retval = 0; 5498 5499 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5500 5501 /* 5502 * XXX KDM 5503 * We don't support the immediate bit on a stop unit. In order to 5504 * do that, we would need to code up a way to know that a stop is 5505 * pending, and hold off any new commands until it completes, one 5506 * way or another. Then we could accept or reject those commands 5507 * depending on its status. We would almost need to do the reverse 5508 * of what we do below for an immediate start -- return the copy of 5509 * the ctl_io to the FETD with status to send to the host (and to 5510 * free the copy!) and then free the original I/O once the stop 5511 * actually completes. That way, the OOA queue mechanism can work 5512 * to block commands that shouldn't proceed. Another alternative 5513 * would be to put the copy in the queue in place of the original, 5514 * and return the original back to the caller. That could be 5515 * slightly safer.. 5516 */ 5517 if ((cdb->byte2 & SSS_IMMED) 5518 && ((cdb->how & SSS_START) == 0)) { 5519 ctl_set_invalid_field(ctsio, 5520 /*sks_valid*/ 1, 5521 /*command*/ 1, 5522 /*field*/ 1, 5523 /*bit_valid*/ 1, 5524 /*bit*/ 0); 5525 ctl_done((union ctl_io *)ctsio); 5526 return (CTL_RETVAL_COMPLETE); 5527 } 5528 5529 if ((lun->flags & CTL_LUN_PR_RESERVED) 5530 && ((cdb->how & SSS_START)==0)) { 5531 uint32_t residx; 5532 5533 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5534 if (!lun->per_res[residx].registered 5535 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5536 5537 ctl_set_reservation_conflict(ctsio); 5538 ctl_done((union ctl_io *)ctsio); 5539 return (CTL_RETVAL_COMPLETE); 5540 } 5541 } 5542 5543 /* 5544 * If there is no backend on this device, we can't start or stop 5545 * it. In theory we shouldn't get any start/stop commands in the 5546 * first place at this level if the LUN doesn't have a backend. 5547 * That should get stopped by the command decode code. 5548 */ 5549 if (lun->backend == NULL) { 5550 ctl_set_invalid_opcode(ctsio); 5551 ctl_done((union ctl_io *)ctsio); 5552 return (CTL_RETVAL_COMPLETE); 5553 } 5554 5555 /* 5556 * XXX KDM Copan-specific offline behavior. 5557 * Figure out a reasonable way to port this? 5558 */ 5559#ifdef NEEDTOPORT 5560 mtx_lock(&lun->lun_lock); 5561 5562 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5563 && (lun->flags & CTL_LUN_OFFLINE)) { 5564 /* 5565 * If the LUN is offline, and the on/offline bit isn't set, 5566 * reject the start or stop. Otherwise, let it through. 5567 */ 5568 mtx_unlock(&lun->lun_lock); 5569 ctl_set_lun_not_ready(ctsio); 5570 ctl_done((union ctl_io *)ctsio); 5571 } else { 5572 mtx_unlock(&lun->lun_lock); 5573#endif /* NEEDTOPORT */ 5574 /* 5575 * This could be a start or a stop when we're online, 5576 * or a stop/offline or start/online. A start or stop when 5577 * we're offline is covered in the case above. 5578 */ 5579 /* 5580 * In the non-immediate case, we send the request to 5581 * the backend and return status to the user when 5582 * it is done. 5583 * 5584 * In the immediate case, we allocate a new ctl_io 5585 * to hold a copy of the request, and send that to 5586 * the backend. We then set good status on the 5587 * user's request and return it immediately. 5588 */ 5589 if (cdb->byte2 & SSS_IMMED) { 5590 union ctl_io *new_io; 5591 5592 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5593 if (new_io == NULL) { 5594 ctl_set_busy(ctsio); 5595 ctl_done((union ctl_io *)ctsio); 5596 } else { 5597 ctl_copy_io((union ctl_io *)ctsio, 5598 new_io); 5599 retval = lun->backend->config_write(new_io); 5600 ctl_set_success(ctsio); 5601 ctl_done((union ctl_io *)ctsio); 5602 } 5603 } else { 5604 retval = lun->backend->config_write( 5605 (union ctl_io *)ctsio); 5606 } 5607#ifdef NEEDTOPORT 5608 } 5609#endif 5610 return (retval); 5611} 5612 5613/* 5614 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5615 * we don't really do anything with the LBA and length fields if the user 5616 * passes them in. Instead we'll just flush out the cache for the entire 5617 * LUN. 5618 */ 5619int 5620ctl_sync_cache(struct ctl_scsiio *ctsio) 5621{ 5622 struct ctl_lun *lun; 5623 struct ctl_softc *ctl_softc; 5624 uint64_t starting_lba; 5625 uint32_t block_count; 5626 int retval; 5627 5628 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5629 5630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5631 ctl_softc = control_softc; 5632 retval = 0; 5633 5634 switch (ctsio->cdb[0]) { 5635 case SYNCHRONIZE_CACHE: { 5636 struct scsi_sync_cache *cdb; 5637 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5638 5639 starting_lba = scsi_4btoul(cdb->begin_lba); 5640 block_count = scsi_2btoul(cdb->lb_count); 5641 break; 5642 } 5643 case SYNCHRONIZE_CACHE_16: { 5644 struct scsi_sync_cache_16 *cdb; 5645 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5646 5647 starting_lba = scsi_8btou64(cdb->begin_lba); 5648 block_count = scsi_4btoul(cdb->lb_count); 5649 break; 5650 } 5651 default: 5652 ctl_set_invalid_opcode(ctsio); 5653 ctl_done((union ctl_io *)ctsio); 5654 goto bailout; 5655 break; /* NOTREACHED */ 5656 } 5657 5658 /* 5659 * We check the LBA and length, but don't do anything with them. 5660 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5661 * get flushed. This check will just help satisfy anyone who wants 5662 * to see an error for an out of range LBA. 5663 */ 5664 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5665 ctl_set_lba_out_of_range(ctsio); 5666 ctl_done((union ctl_io *)ctsio); 5667 goto bailout; 5668 } 5669 5670 /* 5671 * If this LUN has no backend, we can't flush the cache anyway. 5672 */ 5673 if (lun->backend == NULL) { 5674 ctl_set_invalid_opcode(ctsio); 5675 ctl_done((union ctl_io *)ctsio); 5676 goto bailout; 5677 } 5678 5679 /* 5680 * Check to see whether we're configured to send the SYNCHRONIZE 5681 * CACHE command directly to the back end. 5682 */ 5683 mtx_lock(&lun->lun_lock); 5684 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5685 && (++(lun->sync_count) >= lun->sync_interval)) { 5686 lun->sync_count = 0; 5687 mtx_unlock(&lun->lun_lock); 5688 retval = lun->backend->config_write((union ctl_io *)ctsio); 5689 } else { 5690 mtx_unlock(&lun->lun_lock); 5691 ctl_set_success(ctsio); 5692 ctl_done((union ctl_io *)ctsio); 5693 } 5694 5695bailout: 5696 5697 return (retval); 5698} 5699 5700int 5701ctl_format(struct ctl_scsiio *ctsio) 5702{ 5703 struct scsi_format *cdb; 5704 struct ctl_lun *lun; 5705 struct ctl_softc *ctl_softc; 5706 int length, defect_list_len; 5707 5708 CTL_DEBUG_PRINT(("ctl_format\n")); 5709 5710 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5711 ctl_softc = control_softc; 5712 5713 cdb = (struct scsi_format *)ctsio->cdb; 5714 5715 length = 0; 5716 if (cdb->byte2 & SF_FMTDATA) { 5717 if (cdb->byte2 & SF_LONGLIST) 5718 length = sizeof(struct scsi_format_header_long); 5719 else 5720 length = sizeof(struct scsi_format_header_short); 5721 } 5722 5723 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5724 && (length > 0)) { 5725 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5726 ctsio->kern_data_len = length; 5727 ctsio->kern_total_len = length; 5728 ctsio->kern_data_resid = 0; 5729 ctsio->kern_rel_offset = 0; 5730 ctsio->kern_sg_entries = 0; 5731 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5732 ctsio->be_move_done = ctl_config_move_done; 5733 ctl_datamove((union ctl_io *)ctsio); 5734 5735 return (CTL_RETVAL_COMPLETE); 5736 } 5737 5738 defect_list_len = 0; 5739 5740 if (cdb->byte2 & SF_FMTDATA) { 5741 if (cdb->byte2 & SF_LONGLIST) { 5742 struct scsi_format_header_long *header; 5743 5744 header = (struct scsi_format_header_long *) 5745 ctsio->kern_data_ptr; 5746 5747 defect_list_len = scsi_4btoul(header->defect_list_len); 5748 if (defect_list_len != 0) { 5749 ctl_set_invalid_field(ctsio, 5750 /*sks_valid*/ 1, 5751 /*command*/ 0, 5752 /*field*/ 2, 5753 /*bit_valid*/ 0, 5754 /*bit*/ 0); 5755 goto bailout; 5756 } 5757 } else { 5758 struct scsi_format_header_short *header; 5759 5760 header = (struct scsi_format_header_short *) 5761 ctsio->kern_data_ptr; 5762 5763 defect_list_len = scsi_2btoul(header->defect_list_len); 5764 if (defect_list_len != 0) { 5765 ctl_set_invalid_field(ctsio, 5766 /*sks_valid*/ 1, 5767 /*command*/ 0, 5768 /*field*/ 2, 5769 /*bit_valid*/ 0, 5770 /*bit*/ 0); 5771 goto bailout; 5772 } 5773 } 5774 } 5775 5776 /* 5777 * The format command will clear out the "Medium format corrupted" 5778 * status if set by the configuration code. That status is really 5779 * just a way to notify the host that we have lost the media, and 5780 * get them to issue a command that will basically make them think 5781 * they're blowing away the media. 5782 */ 5783 mtx_lock(&lun->lun_lock); 5784 lun->flags &= ~CTL_LUN_INOPERABLE; 5785 mtx_unlock(&lun->lun_lock); 5786 5787 ctsio->scsi_status = SCSI_STATUS_OK; 5788 ctsio->io_hdr.status = CTL_SUCCESS; 5789bailout: 5790 5791 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5792 free(ctsio->kern_data_ptr, M_CTL); 5793 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5794 } 5795 5796 ctl_done((union ctl_io *)ctsio); 5797 return (CTL_RETVAL_COMPLETE); 5798} 5799 5800int 5801ctl_read_buffer(struct ctl_scsiio *ctsio) 5802{ 5803 struct scsi_read_buffer *cdb; 5804 struct ctl_lun *lun; 5805 int buffer_offset, len; 5806 static uint8_t descr[4]; 5807 static uint8_t echo_descr[4] = { 0 }; 5808 5809 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5810 5811 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5812 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5813 5814 if (lun->flags & CTL_LUN_PR_RESERVED) { 5815 uint32_t residx; 5816 5817 /* 5818 * XXX KDM need a lock here. 5819 */ 5820 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5821 if ((lun->res_type == SPR_TYPE_EX_AC 5822 && residx != lun->pr_res_idx) 5823 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5824 || lun->res_type == SPR_TYPE_EX_AC_AR) 5825 && !lun->per_res[residx].registered)) { 5826 ctl_set_reservation_conflict(ctsio); 5827 ctl_done((union ctl_io *)ctsio); 5828 return (CTL_RETVAL_COMPLETE); 5829 } 5830 } 5831 5832 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5833 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5834 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5835 ctl_set_invalid_field(ctsio, 5836 /*sks_valid*/ 1, 5837 /*command*/ 1, 5838 /*field*/ 1, 5839 /*bit_valid*/ 1, 5840 /*bit*/ 4); 5841 ctl_done((union ctl_io *)ctsio); 5842 return (CTL_RETVAL_COMPLETE); 5843 } 5844 5845 len = scsi_3btoul(cdb->length); 5846 buffer_offset = scsi_3btoul(cdb->offset); 5847 5848 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5849 ctl_set_invalid_field(ctsio, 5850 /*sks_valid*/ 1, 5851 /*command*/ 1, 5852 /*field*/ 6, 5853 /*bit_valid*/ 0, 5854 /*bit*/ 0); 5855 ctl_done((union ctl_io *)ctsio); 5856 return (CTL_RETVAL_COMPLETE); 5857 } 5858 5859 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5860 descr[0] = 0; 5861 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5862 ctsio->kern_data_ptr = descr; 5863 len = min(len, sizeof(descr)); 5864 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5865 ctsio->kern_data_ptr = echo_descr; 5866 len = min(len, sizeof(echo_descr)); 5867 } else 5868 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5869 ctsio->kern_data_len = len; 5870 ctsio->kern_total_len = len; 5871 ctsio->kern_data_resid = 0; 5872 ctsio->kern_rel_offset = 0; 5873 ctsio->kern_sg_entries = 0; 5874 ctsio->be_move_done = ctl_config_move_done; 5875 ctl_datamove((union ctl_io *)ctsio); 5876 5877 return (CTL_RETVAL_COMPLETE); 5878} 5879 5880int 5881ctl_write_buffer(struct ctl_scsiio *ctsio) 5882{ 5883 struct scsi_write_buffer *cdb; 5884 struct ctl_lun *lun; 5885 int buffer_offset, len; 5886 5887 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5888 5889 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5890 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5891 5892 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5893 ctl_set_invalid_field(ctsio, 5894 /*sks_valid*/ 1, 5895 /*command*/ 1, 5896 /*field*/ 1, 5897 /*bit_valid*/ 1, 5898 /*bit*/ 4); 5899 ctl_done((union ctl_io *)ctsio); 5900 return (CTL_RETVAL_COMPLETE); 5901 } 5902 5903 len = scsi_3btoul(cdb->length); 5904 buffer_offset = scsi_3btoul(cdb->offset); 5905 5906 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5907 ctl_set_invalid_field(ctsio, 5908 /*sks_valid*/ 1, 5909 /*command*/ 1, 5910 /*field*/ 6, 5911 /*bit_valid*/ 0, 5912 /*bit*/ 0); 5913 ctl_done((union ctl_io *)ctsio); 5914 return (CTL_RETVAL_COMPLETE); 5915 } 5916 5917 /* 5918 * If we've got a kernel request that hasn't been malloced yet, 5919 * malloc it and tell the caller the data buffer is here. 5920 */ 5921 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5922 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5923 ctsio->kern_data_len = len; 5924 ctsio->kern_total_len = len; 5925 ctsio->kern_data_resid = 0; 5926 ctsio->kern_rel_offset = 0; 5927 ctsio->kern_sg_entries = 0; 5928 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5929 ctsio->be_move_done = ctl_config_move_done; 5930 ctl_datamove((union ctl_io *)ctsio); 5931 5932 return (CTL_RETVAL_COMPLETE); 5933 } 5934 5935 ctl_done((union ctl_io *)ctsio); 5936 5937 return (CTL_RETVAL_COMPLETE); 5938} 5939 5940int 5941ctl_write_same(struct ctl_scsiio *ctsio) 5942{ 5943 struct ctl_lun *lun; 5944 struct ctl_lba_len_flags *lbalen; 5945 uint64_t lba; 5946 uint32_t num_blocks; 5947 int len, retval; 5948 uint8_t byte2; 5949 5950 retval = CTL_RETVAL_COMPLETE; 5951 5952 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5953 5954 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5955 5956 switch (ctsio->cdb[0]) { 5957 case WRITE_SAME_10: { 5958 struct scsi_write_same_10 *cdb; 5959 5960 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5961 5962 lba = scsi_4btoul(cdb->addr); 5963 num_blocks = scsi_2btoul(cdb->length); 5964 byte2 = cdb->byte2; 5965 break; 5966 } 5967 case WRITE_SAME_16: { 5968 struct scsi_write_same_16 *cdb; 5969 5970 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5971 5972 lba = scsi_8btou64(cdb->addr); 5973 num_blocks = scsi_4btoul(cdb->length); 5974 byte2 = cdb->byte2; 5975 break; 5976 } 5977 default: 5978 /* 5979 * We got a command we don't support. This shouldn't 5980 * happen, commands should be filtered out above us. 5981 */ 5982 ctl_set_invalid_opcode(ctsio); 5983 ctl_done((union ctl_io *)ctsio); 5984 5985 return (CTL_RETVAL_COMPLETE); 5986 break; /* NOTREACHED */ 5987 } 5988 5989 /* NDOB flag can be used only together with UNMAP */ 5990 if ((byte2 & (SWS_NDOB | SWS_UNMAP)) == SWS_NDOB) { 5991 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5992 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5993 ctl_done((union ctl_io *)ctsio); 5994 return (CTL_RETVAL_COMPLETE); 5995 } 5996 5997 /* 5998 * The first check is to make sure we're in bounds, the second 5999 * check is to catch wrap-around problems. If the lba + num blocks 6000 * is less than the lba, then we've wrapped around and the block 6001 * range is invalid anyway. 6002 */ 6003 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6004 || ((lba + num_blocks) < lba)) { 6005 ctl_set_lba_out_of_range(ctsio); 6006 ctl_done((union ctl_io *)ctsio); 6007 return (CTL_RETVAL_COMPLETE); 6008 } 6009 6010 /* Zero number of blocks means "to the last logical block" */ 6011 if (num_blocks == 0) { 6012 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6013 ctl_set_invalid_field(ctsio, 6014 /*sks_valid*/ 0, 6015 /*command*/ 1, 6016 /*field*/ 0, 6017 /*bit_valid*/ 0, 6018 /*bit*/ 0); 6019 ctl_done((union ctl_io *)ctsio); 6020 return (CTL_RETVAL_COMPLETE); 6021 } 6022 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6023 } 6024 6025 len = lun->be_lun->blocksize; 6026 6027 /* 6028 * If we've got a kernel request that hasn't been malloced yet, 6029 * malloc it and tell the caller the data buffer is here. 6030 */ 6031 if ((byte2 & SWS_NDOB) == 0 && 6032 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6033 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6034 ctsio->kern_data_len = len; 6035 ctsio->kern_total_len = len; 6036 ctsio->kern_data_resid = 0; 6037 ctsio->kern_rel_offset = 0; 6038 ctsio->kern_sg_entries = 0; 6039 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6040 ctsio->be_move_done = ctl_config_move_done; 6041 ctl_datamove((union ctl_io *)ctsio); 6042 6043 return (CTL_RETVAL_COMPLETE); 6044 } 6045 6046 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6047 lbalen->lba = lba; 6048 lbalen->len = num_blocks; 6049 lbalen->flags = byte2; 6050 retval = lun->backend->config_write((union ctl_io *)ctsio); 6051 6052 return (retval); 6053} 6054 6055int 6056ctl_unmap(struct ctl_scsiio *ctsio) 6057{ 6058 struct ctl_lun *lun; 6059 struct scsi_unmap *cdb; 6060 struct ctl_ptr_len_flags *ptrlen; 6061 struct scsi_unmap_header *hdr; 6062 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6063 uint64_t lba; 6064 uint32_t num_blocks; 6065 int len, retval; 6066 uint8_t byte2; 6067 6068 retval = CTL_RETVAL_COMPLETE; 6069 6070 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6071 6072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6073 cdb = (struct scsi_unmap *)ctsio->cdb; 6074 6075 len = scsi_2btoul(cdb->length); 6076 byte2 = cdb->byte2; 6077 6078 /* 6079 * If we've got a kernel request that hasn't been malloced yet, 6080 * malloc it and tell the caller the data buffer is here. 6081 */ 6082 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6083 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6084 ctsio->kern_data_len = len; 6085 ctsio->kern_total_len = len; 6086 ctsio->kern_data_resid = 0; 6087 ctsio->kern_rel_offset = 0; 6088 ctsio->kern_sg_entries = 0; 6089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6090 ctsio->be_move_done = ctl_config_move_done; 6091 ctl_datamove((union ctl_io *)ctsio); 6092 6093 return (CTL_RETVAL_COMPLETE); 6094 } 6095 6096 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6097 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6098 if (len < sizeof (*hdr) || 6099 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6100 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6101 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6102 ctl_set_invalid_field(ctsio, 6103 /*sks_valid*/ 0, 6104 /*command*/ 0, 6105 /*field*/ 0, 6106 /*bit_valid*/ 0, 6107 /*bit*/ 0); 6108 ctl_done((union ctl_io *)ctsio); 6109 return (CTL_RETVAL_COMPLETE); 6110 } 6111 len = scsi_2btoul(hdr->desc_length); 6112 buf = (struct scsi_unmap_desc *)(hdr + 1); 6113 end = buf + len / sizeof(*buf); 6114 6115 endnz = buf; 6116 for (range = buf; range < end; range++) { 6117 lba = scsi_8btou64(range->lba); 6118 num_blocks = scsi_4btoul(range->length); 6119 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6120 || ((lba + num_blocks) < lba)) { 6121 ctl_set_lba_out_of_range(ctsio); 6122 ctl_done((union ctl_io *)ctsio); 6123 return (CTL_RETVAL_COMPLETE); 6124 } 6125 if (num_blocks != 0) 6126 endnz = range + 1; 6127 } 6128 6129 /* 6130 * Block backend can not handle zero last range. 6131 * Filter it out and return if there is nothing left. 6132 */ 6133 len = (uint8_t *)endnz - (uint8_t *)buf; 6134 if (len == 0) { 6135 ctl_set_success(ctsio); 6136 ctl_done((union ctl_io *)ctsio); 6137 return (CTL_RETVAL_COMPLETE); 6138 } 6139 6140 mtx_lock(&lun->lun_lock); 6141 ptrlen = (struct ctl_ptr_len_flags *) 6142 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6143 ptrlen->ptr = (void *)buf; 6144 ptrlen->len = len; 6145 ptrlen->flags = byte2; 6146 ctl_check_blocked(lun); 6147 mtx_unlock(&lun->lun_lock); 6148 6149 retval = lun->backend->config_write((union ctl_io *)ctsio); 6150 return (retval); 6151} 6152 6153/* 6154 * Note that this function currently doesn't actually do anything inside 6155 * CTL to enforce things if the DQue bit is turned on. 6156 * 6157 * Also note that this function can't be used in the default case, because 6158 * the DQue bit isn't set in the changeable mask for the control mode page 6159 * anyway. This is just here as an example for how to implement a page 6160 * handler, and a placeholder in case we want to allow the user to turn 6161 * tagged queueing on and off. 6162 * 6163 * The D_SENSE bit handling is functional, however, and will turn 6164 * descriptor sense on and off for a given LUN. 6165 */ 6166int 6167ctl_control_page_handler(struct ctl_scsiio *ctsio, 6168 struct ctl_page_index *page_index, uint8_t *page_ptr) 6169{ 6170 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6171 struct ctl_lun *lun; 6172 struct ctl_softc *softc; 6173 int set_ua; 6174 uint32_t initidx; 6175 6176 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6177 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6178 set_ua = 0; 6179 6180 user_cp = (struct scsi_control_page *)page_ptr; 6181 current_cp = (struct scsi_control_page *) 6182 (page_index->page_data + (page_index->page_len * 6183 CTL_PAGE_CURRENT)); 6184 saved_cp = (struct scsi_control_page *) 6185 (page_index->page_data + (page_index->page_len * 6186 CTL_PAGE_SAVED)); 6187 6188 softc = control_softc; 6189 6190 mtx_lock(&lun->lun_lock); 6191 if (((current_cp->rlec & SCP_DSENSE) == 0) 6192 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6193 /* 6194 * Descriptor sense is currently turned off and the user 6195 * wants to turn it on. 6196 */ 6197 current_cp->rlec |= SCP_DSENSE; 6198 saved_cp->rlec |= SCP_DSENSE; 6199 lun->flags |= CTL_LUN_SENSE_DESC; 6200 set_ua = 1; 6201 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6202 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6203 /* 6204 * Descriptor sense is currently turned on, and the user 6205 * wants to turn it off. 6206 */ 6207 current_cp->rlec &= ~SCP_DSENSE; 6208 saved_cp->rlec &= ~SCP_DSENSE; 6209 lun->flags &= ~CTL_LUN_SENSE_DESC; 6210 set_ua = 1; 6211 } 6212 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6213 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6214 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6215 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6216 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6217 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6218 set_ua = 1; 6219 } 6220 if (set_ua != 0) { 6221 int i; 6222 /* 6223 * Let other initiators know that the mode 6224 * parameters for this LUN have changed. 6225 */ 6226 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6227 if (i == initidx) 6228 continue; 6229 6230 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6231 } 6232 } 6233 mtx_unlock(&lun->lun_lock); 6234 6235 return (0); 6236} 6237 6238int 6239ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6240 struct ctl_page_index *page_index, uint8_t *page_ptr) 6241{ 6242 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6243 struct ctl_lun *lun; 6244 int set_ua; 6245 uint32_t initidx; 6246 6247 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6248 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6249 set_ua = 0; 6250 6251 user_cp = (struct scsi_caching_page *)page_ptr; 6252 current_cp = (struct scsi_caching_page *) 6253 (page_index->page_data + (page_index->page_len * 6254 CTL_PAGE_CURRENT)); 6255 saved_cp = (struct scsi_caching_page *) 6256 (page_index->page_data + (page_index->page_len * 6257 CTL_PAGE_SAVED)); 6258 6259 mtx_lock(&lun->lun_lock); 6260 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6261 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6262 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6263 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6264 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6265 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6266 set_ua = 1; 6267 } 6268 if (set_ua != 0) { 6269 int i; 6270 /* 6271 * Let other initiators know that the mode 6272 * parameters for this LUN have changed. 6273 */ 6274 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6275 if (i == initidx) 6276 continue; 6277 6278 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6279 } 6280 } 6281 mtx_unlock(&lun->lun_lock); 6282 6283 return (0); 6284} 6285 6286int 6287ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6288 struct ctl_page_index *page_index, uint8_t *page_ptr) 6289{ 6290 return (0); 6291} 6292 6293int 6294ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6295 struct ctl_page_index *page_index, int pc) 6296{ 6297 struct copan_power_subpage *page; 6298 6299 page = (struct copan_power_subpage *)page_index->page_data + 6300 (page_index->page_len * pc); 6301 6302 switch (pc) { 6303 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6304 /* 6305 * We don't update the changable bits for this page. 6306 */ 6307 break; 6308 case SMS_PAGE_CTRL_CURRENT >> 6: 6309 case SMS_PAGE_CTRL_DEFAULT >> 6: 6310 case SMS_PAGE_CTRL_SAVED >> 6: 6311#ifdef NEEDTOPORT 6312 ctl_update_power_subpage(page); 6313#endif 6314 break; 6315 default: 6316#ifdef NEEDTOPORT 6317 EPRINT(0, "Invalid PC %d!!", pc); 6318#endif 6319 break; 6320 } 6321 return (0); 6322} 6323 6324 6325int 6326ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6327 struct ctl_page_index *page_index, uint8_t *page_ptr) 6328{ 6329 struct copan_aps_subpage *user_sp; 6330 struct copan_aps_subpage *current_sp; 6331 union ctl_modepage_info *modepage_info; 6332 struct ctl_softc *softc; 6333 struct ctl_lun *lun; 6334 int retval; 6335 6336 retval = CTL_RETVAL_COMPLETE; 6337 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6338 (page_index->page_len * CTL_PAGE_CURRENT)); 6339 softc = control_softc; 6340 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6341 6342 user_sp = (struct copan_aps_subpage *)page_ptr; 6343 6344 modepage_info = (union ctl_modepage_info *) 6345 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6346 6347 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6348 modepage_info->header.subpage = page_index->subpage; 6349 modepage_info->aps.lock_active = user_sp->lock_active; 6350 6351 mtx_lock(&softc->ctl_lock); 6352 6353 /* 6354 * If there is a request to lock the LUN and another LUN is locked 6355 * this is an error. If the requested LUN is already locked ignore 6356 * the request. If no LUN is locked attempt to lock it. 6357 * if there is a request to unlock the LUN and the LUN is currently 6358 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6359 * if another LUN is locked or no LUN is locked. 6360 */ 6361 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6362 if (softc->aps_locked_lun == lun->lun) { 6363 /* 6364 * This LUN is already locked, so we're done. 6365 */ 6366 retval = CTL_RETVAL_COMPLETE; 6367 } else if (softc->aps_locked_lun == 0) { 6368 /* 6369 * No one has the lock, pass the request to the 6370 * backend. 6371 */ 6372 retval = lun->backend->config_write( 6373 (union ctl_io *)ctsio); 6374 } else { 6375 /* 6376 * Someone else has the lock, throw out the request. 6377 */ 6378 ctl_set_already_locked(ctsio); 6379 free(ctsio->kern_data_ptr, M_CTL); 6380 ctl_done((union ctl_io *)ctsio); 6381 6382 /* 6383 * Set the return value so that ctl_do_mode_select() 6384 * won't try to complete the command. We already 6385 * completed it here. 6386 */ 6387 retval = CTL_RETVAL_ERROR; 6388 } 6389 } else if (softc->aps_locked_lun == lun->lun) { 6390 /* 6391 * This LUN is locked, so pass the unlock request to the 6392 * backend. 6393 */ 6394 retval = lun->backend->config_write((union ctl_io *)ctsio); 6395 } 6396 mtx_unlock(&softc->ctl_lock); 6397 6398 return (retval); 6399} 6400 6401int 6402ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6403 struct ctl_page_index *page_index, 6404 uint8_t *page_ptr) 6405{ 6406 uint8_t *c; 6407 int i; 6408 6409 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6410 ctl_time_io_secs = 6411 (c[0] << 8) | 6412 (c[1] << 0) | 6413 0; 6414 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6415 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6416 printf("page data:"); 6417 for (i=0; i<8; i++) 6418 printf(" %.2x",page_ptr[i]); 6419 printf("\n"); 6420 return (0); 6421} 6422 6423int 6424ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6425 struct ctl_page_index *page_index, 6426 int pc) 6427{ 6428 struct copan_debugconf_subpage *page; 6429 6430 page = (struct copan_debugconf_subpage *)page_index->page_data + 6431 (page_index->page_len * pc); 6432 6433 switch (pc) { 6434 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6435 case SMS_PAGE_CTRL_DEFAULT >> 6: 6436 case SMS_PAGE_CTRL_SAVED >> 6: 6437 /* 6438 * We don't update the changable or default bits for this page. 6439 */ 6440 break; 6441 case SMS_PAGE_CTRL_CURRENT >> 6: 6442 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6443 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6444 break; 6445 default: 6446#ifdef NEEDTOPORT 6447 EPRINT(0, "Invalid PC %d!!", pc); 6448#endif /* NEEDTOPORT */ 6449 break; 6450 } 6451 return (0); 6452} 6453 6454 6455static int 6456ctl_do_mode_select(union ctl_io *io) 6457{ 6458 struct scsi_mode_page_header *page_header; 6459 struct ctl_page_index *page_index; 6460 struct ctl_scsiio *ctsio; 6461 int control_dev, page_len; 6462 int page_len_offset, page_len_size; 6463 union ctl_modepage_info *modepage_info; 6464 struct ctl_lun *lun; 6465 int *len_left, *len_used; 6466 int retval, i; 6467 6468 ctsio = &io->scsiio; 6469 page_index = NULL; 6470 page_len = 0; 6471 retval = CTL_RETVAL_COMPLETE; 6472 6473 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6474 6475 if (lun->be_lun->lun_type != T_DIRECT) 6476 control_dev = 1; 6477 else 6478 control_dev = 0; 6479 6480 modepage_info = (union ctl_modepage_info *) 6481 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6482 len_left = &modepage_info->header.len_left; 6483 len_used = &modepage_info->header.len_used; 6484 6485do_next_page: 6486 6487 page_header = (struct scsi_mode_page_header *) 6488 (ctsio->kern_data_ptr + *len_used); 6489 6490 if (*len_left == 0) { 6491 free(ctsio->kern_data_ptr, M_CTL); 6492 ctl_set_success(ctsio); 6493 ctl_done((union ctl_io *)ctsio); 6494 return (CTL_RETVAL_COMPLETE); 6495 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6496 6497 free(ctsio->kern_data_ptr, M_CTL); 6498 ctl_set_param_len_error(ctsio); 6499 ctl_done((union ctl_io *)ctsio); 6500 return (CTL_RETVAL_COMPLETE); 6501 6502 } else if ((page_header->page_code & SMPH_SPF) 6503 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6504 6505 free(ctsio->kern_data_ptr, M_CTL); 6506 ctl_set_param_len_error(ctsio); 6507 ctl_done((union ctl_io *)ctsio); 6508 return (CTL_RETVAL_COMPLETE); 6509 } 6510 6511 6512 /* 6513 * XXX KDM should we do something with the block descriptor? 6514 */ 6515 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6516 6517 if ((control_dev != 0) 6518 && (lun->mode_pages.index[i].page_flags & 6519 CTL_PAGE_FLAG_DISK_ONLY)) 6520 continue; 6521 6522 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6523 (page_header->page_code & SMPH_PC_MASK)) 6524 continue; 6525 6526 /* 6527 * If neither page has a subpage code, then we've got a 6528 * match. 6529 */ 6530 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6531 && ((page_header->page_code & SMPH_SPF) == 0)) { 6532 page_index = &lun->mode_pages.index[i]; 6533 page_len = page_header->page_length; 6534 break; 6535 } 6536 6537 /* 6538 * If both pages have subpages, then the subpage numbers 6539 * have to match. 6540 */ 6541 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6542 && (page_header->page_code & SMPH_SPF)) { 6543 struct scsi_mode_page_header_sp *sph; 6544 6545 sph = (struct scsi_mode_page_header_sp *)page_header; 6546 6547 if (lun->mode_pages.index[i].subpage == 6548 sph->subpage) { 6549 page_index = &lun->mode_pages.index[i]; 6550 page_len = scsi_2btoul(sph->page_length); 6551 break; 6552 } 6553 } 6554 } 6555 6556 /* 6557 * If we couldn't find the page, or if we don't have a mode select 6558 * handler for it, send back an error to the user. 6559 */ 6560 if ((page_index == NULL) 6561 || (page_index->select_handler == NULL)) { 6562 ctl_set_invalid_field(ctsio, 6563 /*sks_valid*/ 1, 6564 /*command*/ 0, 6565 /*field*/ *len_used, 6566 /*bit_valid*/ 0, 6567 /*bit*/ 0); 6568 free(ctsio->kern_data_ptr, M_CTL); 6569 ctl_done((union ctl_io *)ctsio); 6570 return (CTL_RETVAL_COMPLETE); 6571 } 6572 6573 if (page_index->page_code & SMPH_SPF) { 6574 page_len_offset = 2; 6575 page_len_size = 2; 6576 } else { 6577 page_len_size = 1; 6578 page_len_offset = 1; 6579 } 6580 6581 /* 6582 * If the length the initiator gives us isn't the one we specify in 6583 * the mode page header, or if they didn't specify enough data in 6584 * the CDB to avoid truncating this page, kick out the request. 6585 */ 6586 if ((page_len != (page_index->page_len - page_len_offset - 6587 page_len_size)) 6588 || (*len_left < page_index->page_len)) { 6589 6590 6591 ctl_set_invalid_field(ctsio, 6592 /*sks_valid*/ 1, 6593 /*command*/ 0, 6594 /*field*/ *len_used + page_len_offset, 6595 /*bit_valid*/ 0, 6596 /*bit*/ 0); 6597 free(ctsio->kern_data_ptr, M_CTL); 6598 ctl_done((union ctl_io *)ctsio); 6599 return (CTL_RETVAL_COMPLETE); 6600 } 6601 6602 /* 6603 * Run through the mode page, checking to make sure that the bits 6604 * the user changed are actually legal for him to change. 6605 */ 6606 for (i = 0; i < page_index->page_len; i++) { 6607 uint8_t *user_byte, *change_mask, *current_byte; 6608 int bad_bit; 6609 int j; 6610 6611 user_byte = (uint8_t *)page_header + i; 6612 change_mask = page_index->page_data + 6613 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6614 current_byte = page_index->page_data + 6615 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6616 6617 /* 6618 * Check to see whether the user set any bits in this byte 6619 * that he is not allowed to set. 6620 */ 6621 if ((*user_byte & ~(*change_mask)) == 6622 (*current_byte & ~(*change_mask))) 6623 continue; 6624 6625 /* 6626 * Go through bit by bit to determine which one is illegal. 6627 */ 6628 bad_bit = 0; 6629 for (j = 7; j >= 0; j--) { 6630 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6631 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6632 bad_bit = i; 6633 break; 6634 } 6635 } 6636 ctl_set_invalid_field(ctsio, 6637 /*sks_valid*/ 1, 6638 /*command*/ 0, 6639 /*field*/ *len_used + i, 6640 /*bit_valid*/ 1, 6641 /*bit*/ bad_bit); 6642 free(ctsio->kern_data_ptr, M_CTL); 6643 ctl_done((union ctl_io *)ctsio); 6644 return (CTL_RETVAL_COMPLETE); 6645 } 6646 6647 /* 6648 * Decrement these before we call the page handler, since we may 6649 * end up getting called back one way or another before the handler 6650 * returns to this context. 6651 */ 6652 *len_left -= page_index->page_len; 6653 *len_used += page_index->page_len; 6654 6655 retval = page_index->select_handler(ctsio, page_index, 6656 (uint8_t *)page_header); 6657 6658 /* 6659 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6660 * wait until this queued command completes to finish processing 6661 * the mode page. If it returns anything other than 6662 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6663 * already set the sense information, freed the data pointer, and 6664 * completed the io for us. 6665 */ 6666 if (retval != CTL_RETVAL_COMPLETE) 6667 goto bailout_no_done; 6668 6669 /* 6670 * If the initiator sent us more than one page, parse the next one. 6671 */ 6672 if (*len_left > 0) 6673 goto do_next_page; 6674 6675 ctl_set_success(ctsio); 6676 free(ctsio->kern_data_ptr, M_CTL); 6677 ctl_done((union ctl_io *)ctsio); 6678 6679bailout_no_done: 6680 6681 return (CTL_RETVAL_COMPLETE); 6682 6683} 6684 6685int 6686ctl_mode_select(struct ctl_scsiio *ctsio) 6687{ 6688 int param_len, pf, sp; 6689 int header_size, bd_len; 6690 int len_left, len_used; 6691 struct ctl_page_index *page_index; 6692 struct ctl_lun *lun; 6693 int control_dev, page_len; 6694 union ctl_modepage_info *modepage_info; 6695 int retval; 6696 6697 pf = 0; 6698 sp = 0; 6699 page_len = 0; 6700 len_used = 0; 6701 len_left = 0; 6702 retval = 0; 6703 bd_len = 0; 6704 page_index = NULL; 6705 6706 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6707 6708 if (lun->be_lun->lun_type != T_DIRECT) 6709 control_dev = 1; 6710 else 6711 control_dev = 0; 6712 6713 switch (ctsio->cdb[0]) { 6714 case MODE_SELECT_6: { 6715 struct scsi_mode_select_6 *cdb; 6716 6717 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6718 6719 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6720 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6721 6722 param_len = cdb->length; 6723 header_size = sizeof(struct scsi_mode_header_6); 6724 break; 6725 } 6726 case MODE_SELECT_10: { 6727 struct scsi_mode_select_10 *cdb; 6728 6729 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6730 6731 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6732 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6733 6734 param_len = scsi_2btoul(cdb->length); 6735 header_size = sizeof(struct scsi_mode_header_10); 6736 break; 6737 } 6738 default: 6739 ctl_set_invalid_opcode(ctsio); 6740 ctl_done((union ctl_io *)ctsio); 6741 return (CTL_RETVAL_COMPLETE); 6742 break; /* NOTREACHED */ 6743 } 6744 6745 /* 6746 * From SPC-3: 6747 * "A parameter list length of zero indicates that the Data-Out Buffer 6748 * shall be empty. This condition shall not be considered as an error." 6749 */ 6750 if (param_len == 0) { 6751 ctl_set_success(ctsio); 6752 ctl_done((union ctl_io *)ctsio); 6753 return (CTL_RETVAL_COMPLETE); 6754 } 6755 6756 /* 6757 * Since we'll hit this the first time through, prior to 6758 * allocation, we don't need to free a data buffer here. 6759 */ 6760 if (param_len < header_size) { 6761 ctl_set_param_len_error(ctsio); 6762 ctl_done((union ctl_io *)ctsio); 6763 return (CTL_RETVAL_COMPLETE); 6764 } 6765 6766 /* 6767 * Allocate the data buffer and grab the user's data. In theory, 6768 * we shouldn't have to sanity check the parameter list length here 6769 * because the maximum size is 64K. We should be able to malloc 6770 * that much without too many problems. 6771 */ 6772 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6773 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6774 ctsio->kern_data_len = param_len; 6775 ctsio->kern_total_len = param_len; 6776 ctsio->kern_data_resid = 0; 6777 ctsio->kern_rel_offset = 0; 6778 ctsio->kern_sg_entries = 0; 6779 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6780 ctsio->be_move_done = ctl_config_move_done; 6781 ctl_datamove((union ctl_io *)ctsio); 6782 6783 return (CTL_RETVAL_COMPLETE); 6784 } 6785 6786 switch (ctsio->cdb[0]) { 6787 case MODE_SELECT_6: { 6788 struct scsi_mode_header_6 *mh6; 6789 6790 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6791 bd_len = mh6->blk_desc_len; 6792 break; 6793 } 6794 case MODE_SELECT_10: { 6795 struct scsi_mode_header_10 *mh10; 6796 6797 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6798 bd_len = scsi_2btoul(mh10->blk_desc_len); 6799 break; 6800 } 6801 default: 6802 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6803 break; 6804 } 6805 6806 if (param_len < (header_size + bd_len)) { 6807 free(ctsio->kern_data_ptr, M_CTL); 6808 ctl_set_param_len_error(ctsio); 6809 ctl_done((union ctl_io *)ctsio); 6810 return (CTL_RETVAL_COMPLETE); 6811 } 6812 6813 /* 6814 * Set the IO_CONT flag, so that if this I/O gets passed to 6815 * ctl_config_write_done(), it'll get passed back to 6816 * ctl_do_mode_select() for further processing, or completion if 6817 * we're all done. 6818 */ 6819 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6820 ctsio->io_cont = ctl_do_mode_select; 6821 6822 modepage_info = (union ctl_modepage_info *) 6823 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6824 6825 memset(modepage_info, 0, sizeof(*modepage_info)); 6826 6827 len_left = param_len - header_size - bd_len; 6828 len_used = header_size + bd_len; 6829 6830 modepage_info->header.len_left = len_left; 6831 modepage_info->header.len_used = len_used; 6832 6833 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6834} 6835 6836int 6837ctl_mode_sense(struct ctl_scsiio *ctsio) 6838{ 6839 struct ctl_lun *lun; 6840 int pc, page_code, dbd, llba, subpage; 6841 int alloc_len, page_len, header_len, total_len; 6842 struct scsi_mode_block_descr *block_desc; 6843 struct ctl_page_index *page_index; 6844 int control_dev; 6845 6846 dbd = 0; 6847 llba = 0; 6848 block_desc = NULL; 6849 page_index = NULL; 6850 6851 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6852 6853 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6854 6855 if (lun->be_lun->lun_type != T_DIRECT) 6856 control_dev = 1; 6857 else 6858 control_dev = 0; 6859 6860 if (lun->flags & CTL_LUN_PR_RESERVED) { 6861 uint32_t residx; 6862 6863 /* 6864 * XXX KDM need a lock here. 6865 */ 6866 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6867 if ((lun->res_type == SPR_TYPE_EX_AC 6868 && residx != lun->pr_res_idx) 6869 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6870 || lun->res_type == SPR_TYPE_EX_AC_AR) 6871 && !lun->per_res[residx].registered)) { 6872 ctl_set_reservation_conflict(ctsio); 6873 ctl_done((union ctl_io *)ctsio); 6874 return (CTL_RETVAL_COMPLETE); 6875 } 6876 } 6877 6878 switch (ctsio->cdb[0]) { 6879 case MODE_SENSE_6: { 6880 struct scsi_mode_sense_6 *cdb; 6881 6882 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6883 6884 header_len = sizeof(struct scsi_mode_hdr_6); 6885 if (cdb->byte2 & SMS_DBD) 6886 dbd = 1; 6887 else 6888 header_len += sizeof(struct scsi_mode_block_descr); 6889 6890 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6891 page_code = cdb->page & SMS_PAGE_CODE; 6892 subpage = cdb->subpage; 6893 alloc_len = cdb->length; 6894 break; 6895 } 6896 case MODE_SENSE_10: { 6897 struct scsi_mode_sense_10 *cdb; 6898 6899 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6900 6901 header_len = sizeof(struct scsi_mode_hdr_10); 6902 6903 if (cdb->byte2 & SMS_DBD) 6904 dbd = 1; 6905 else 6906 header_len += sizeof(struct scsi_mode_block_descr); 6907 if (cdb->byte2 & SMS10_LLBAA) 6908 llba = 1; 6909 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6910 page_code = cdb->page & SMS_PAGE_CODE; 6911 subpage = cdb->subpage; 6912 alloc_len = scsi_2btoul(cdb->length); 6913 break; 6914 } 6915 default: 6916 ctl_set_invalid_opcode(ctsio); 6917 ctl_done((union ctl_io *)ctsio); 6918 return (CTL_RETVAL_COMPLETE); 6919 break; /* NOTREACHED */ 6920 } 6921 6922 /* 6923 * We have to make a first pass through to calculate the size of 6924 * the pages that match the user's query. Then we allocate enough 6925 * memory to hold it, and actually copy the data into the buffer. 6926 */ 6927 switch (page_code) { 6928 case SMS_ALL_PAGES_PAGE: { 6929 int i; 6930 6931 page_len = 0; 6932 6933 /* 6934 * At the moment, values other than 0 and 0xff here are 6935 * reserved according to SPC-3. 6936 */ 6937 if ((subpage != SMS_SUBPAGE_PAGE_0) 6938 && (subpage != SMS_SUBPAGE_ALL)) { 6939 ctl_set_invalid_field(ctsio, 6940 /*sks_valid*/ 1, 6941 /*command*/ 1, 6942 /*field*/ 3, 6943 /*bit_valid*/ 0, 6944 /*bit*/ 0); 6945 ctl_done((union ctl_io *)ctsio); 6946 return (CTL_RETVAL_COMPLETE); 6947 } 6948 6949 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6950 if ((control_dev != 0) 6951 && (lun->mode_pages.index[i].page_flags & 6952 CTL_PAGE_FLAG_DISK_ONLY)) 6953 continue; 6954 6955 /* 6956 * We don't use this subpage if the user didn't 6957 * request all subpages. 6958 */ 6959 if ((lun->mode_pages.index[i].subpage != 0) 6960 && (subpage == SMS_SUBPAGE_PAGE_0)) 6961 continue; 6962 6963#if 0 6964 printf("found page %#x len %d\n", 6965 lun->mode_pages.index[i].page_code & 6966 SMPH_PC_MASK, 6967 lun->mode_pages.index[i].page_len); 6968#endif 6969 page_len += lun->mode_pages.index[i].page_len; 6970 } 6971 break; 6972 } 6973 default: { 6974 int i; 6975 6976 page_len = 0; 6977 6978 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6979 /* Look for the right page code */ 6980 if ((lun->mode_pages.index[i].page_code & 6981 SMPH_PC_MASK) != page_code) 6982 continue; 6983 6984 /* Look for the right subpage or the subpage wildcard*/ 6985 if ((lun->mode_pages.index[i].subpage != subpage) 6986 && (subpage != SMS_SUBPAGE_ALL)) 6987 continue; 6988 6989 /* Make sure the page is supported for this dev type */ 6990 if ((control_dev != 0) 6991 && (lun->mode_pages.index[i].page_flags & 6992 CTL_PAGE_FLAG_DISK_ONLY)) 6993 continue; 6994 6995#if 0 6996 printf("found page %#x len %d\n", 6997 lun->mode_pages.index[i].page_code & 6998 SMPH_PC_MASK, 6999 lun->mode_pages.index[i].page_len); 7000#endif 7001 7002 page_len += lun->mode_pages.index[i].page_len; 7003 } 7004 7005 if (page_len == 0) { 7006 ctl_set_invalid_field(ctsio, 7007 /*sks_valid*/ 1, 7008 /*command*/ 1, 7009 /*field*/ 2, 7010 /*bit_valid*/ 1, 7011 /*bit*/ 5); 7012 ctl_done((union ctl_io *)ctsio); 7013 return (CTL_RETVAL_COMPLETE); 7014 } 7015 break; 7016 } 7017 } 7018 7019 total_len = header_len + page_len; 7020#if 0 7021 printf("header_len = %d, page_len = %d, total_len = %d\n", 7022 header_len, page_len, total_len); 7023#endif 7024 7025 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7026 ctsio->kern_sg_entries = 0; 7027 ctsio->kern_data_resid = 0; 7028 ctsio->kern_rel_offset = 0; 7029 if (total_len < alloc_len) { 7030 ctsio->residual = alloc_len - total_len; 7031 ctsio->kern_data_len = total_len; 7032 ctsio->kern_total_len = total_len; 7033 } else { 7034 ctsio->residual = 0; 7035 ctsio->kern_data_len = alloc_len; 7036 ctsio->kern_total_len = alloc_len; 7037 } 7038 7039 switch (ctsio->cdb[0]) { 7040 case MODE_SENSE_6: { 7041 struct scsi_mode_hdr_6 *header; 7042 7043 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7044 7045 header->datalen = ctl_min(total_len - 1, 254); 7046 if (control_dev == 0) 7047 header->dev_specific = 0x10; /* DPOFUA */ 7048 if (dbd) 7049 header->block_descr_len = 0; 7050 else 7051 header->block_descr_len = 7052 sizeof(struct scsi_mode_block_descr); 7053 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7054 break; 7055 } 7056 case MODE_SENSE_10: { 7057 struct scsi_mode_hdr_10 *header; 7058 int datalen; 7059 7060 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7061 7062 datalen = ctl_min(total_len - 2, 65533); 7063 scsi_ulto2b(datalen, header->datalen); 7064 if (control_dev == 0) 7065 header->dev_specific = 0x10; /* DPOFUA */ 7066 if (dbd) 7067 scsi_ulto2b(0, header->block_descr_len); 7068 else 7069 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7070 header->block_descr_len); 7071 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7072 break; 7073 } 7074 default: 7075 panic("invalid CDB type %#x", ctsio->cdb[0]); 7076 break; /* NOTREACHED */ 7077 } 7078 7079 /* 7080 * If we've got a disk, use its blocksize in the block 7081 * descriptor. Otherwise, just set it to 0. 7082 */ 7083 if (dbd == 0) { 7084 if (control_dev == 0) 7085 scsi_ulto3b(lun->be_lun->blocksize, 7086 block_desc->block_len); 7087 else 7088 scsi_ulto3b(0, block_desc->block_len); 7089 } 7090 7091 switch (page_code) { 7092 case SMS_ALL_PAGES_PAGE: { 7093 int i, data_used; 7094 7095 data_used = header_len; 7096 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7097 struct ctl_page_index *page_index; 7098 7099 page_index = &lun->mode_pages.index[i]; 7100 7101 if ((control_dev != 0) 7102 && (page_index->page_flags & 7103 CTL_PAGE_FLAG_DISK_ONLY)) 7104 continue; 7105 7106 /* 7107 * We don't use this subpage if the user didn't 7108 * request all subpages. We already checked (above) 7109 * to make sure the user only specified a subpage 7110 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7111 */ 7112 if ((page_index->subpage != 0) 7113 && (subpage == SMS_SUBPAGE_PAGE_0)) 7114 continue; 7115 7116 /* 7117 * Call the handler, if it exists, to update the 7118 * page to the latest values. 7119 */ 7120 if (page_index->sense_handler != NULL) 7121 page_index->sense_handler(ctsio, page_index,pc); 7122 7123 memcpy(ctsio->kern_data_ptr + data_used, 7124 page_index->page_data + 7125 (page_index->page_len * pc), 7126 page_index->page_len); 7127 data_used += page_index->page_len; 7128 } 7129 break; 7130 } 7131 default: { 7132 int i, data_used; 7133 7134 data_used = header_len; 7135 7136 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7137 struct ctl_page_index *page_index; 7138 7139 page_index = &lun->mode_pages.index[i]; 7140 7141 /* Look for the right page code */ 7142 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7143 continue; 7144 7145 /* Look for the right subpage or the subpage wildcard*/ 7146 if ((page_index->subpage != subpage) 7147 && (subpage != SMS_SUBPAGE_ALL)) 7148 continue; 7149 7150 /* Make sure the page is supported for this dev type */ 7151 if ((control_dev != 0) 7152 && (page_index->page_flags & 7153 CTL_PAGE_FLAG_DISK_ONLY)) 7154 continue; 7155 7156 /* 7157 * Call the handler, if it exists, to update the 7158 * page to the latest values. 7159 */ 7160 if (page_index->sense_handler != NULL) 7161 page_index->sense_handler(ctsio, page_index,pc); 7162 7163 memcpy(ctsio->kern_data_ptr + data_used, 7164 page_index->page_data + 7165 (page_index->page_len * pc), 7166 page_index->page_len); 7167 data_used += page_index->page_len; 7168 } 7169 break; 7170 } 7171 } 7172 7173 ctsio->scsi_status = SCSI_STATUS_OK; 7174 7175 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7176 ctsio->be_move_done = ctl_config_move_done; 7177 ctl_datamove((union ctl_io *)ctsio); 7178 7179 return (CTL_RETVAL_COMPLETE); 7180} 7181 7182int 7183ctl_read_capacity(struct ctl_scsiio *ctsio) 7184{ 7185 struct scsi_read_capacity *cdb; 7186 struct scsi_read_capacity_data *data; 7187 struct ctl_lun *lun; 7188 uint32_t lba; 7189 7190 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7191 7192 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7193 7194 lba = scsi_4btoul(cdb->addr); 7195 if (((cdb->pmi & SRC_PMI) == 0) 7196 && (lba != 0)) { 7197 ctl_set_invalid_field(/*ctsio*/ ctsio, 7198 /*sks_valid*/ 1, 7199 /*command*/ 1, 7200 /*field*/ 2, 7201 /*bit_valid*/ 0, 7202 /*bit*/ 0); 7203 ctl_done((union ctl_io *)ctsio); 7204 return (CTL_RETVAL_COMPLETE); 7205 } 7206 7207 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7208 7209 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7210 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7211 ctsio->residual = 0; 7212 ctsio->kern_data_len = sizeof(*data); 7213 ctsio->kern_total_len = sizeof(*data); 7214 ctsio->kern_data_resid = 0; 7215 ctsio->kern_rel_offset = 0; 7216 ctsio->kern_sg_entries = 0; 7217 7218 /* 7219 * If the maximum LBA is greater than 0xfffffffe, the user must 7220 * issue a SERVICE ACTION IN (16) command, with the read capacity 7221 * serivce action set. 7222 */ 7223 if (lun->be_lun->maxlba > 0xfffffffe) 7224 scsi_ulto4b(0xffffffff, data->addr); 7225 else 7226 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7227 7228 /* 7229 * XXX KDM this may not be 512 bytes... 7230 */ 7231 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7232 7233 ctsio->scsi_status = SCSI_STATUS_OK; 7234 7235 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7236 ctsio->be_move_done = ctl_config_move_done; 7237 ctl_datamove((union ctl_io *)ctsio); 7238 7239 return (CTL_RETVAL_COMPLETE); 7240} 7241 7242int 7243ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7244{ 7245 struct scsi_read_capacity_16 *cdb; 7246 struct scsi_read_capacity_data_long *data; 7247 struct ctl_lun *lun; 7248 uint64_t lba; 7249 uint32_t alloc_len; 7250 7251 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7252 7253 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7254 7255 alloc_len = scsi_4btoul(cdb->alloc_len); 7256 lba = scsi_8btou64(cdb->addr); 7257 7258 if ((cdb->reladr & SRC16_PMI) 7259 && (lba != 0)) { 7260 ctl_set_invalid_field(/*ctsio*/ ctsio, 7261 /*sks_valid*/ 1, 7262 /*command*/ 1, 7263 /*field*/ 2, 7264 /*bit_valid*/ 0, 7265 /*bit*/ 0); 7266 ctl_done((union ctl_io *)ctsio); 7267 return (CTL_RETVAL_COMPLETE); 7268 } 7269 7270 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7271 7272 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7273 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7274 7275 if (sizeof(*data) < alloc_len) { 7276 ctsio->residual = alloc_len - sizeof(*data); 7277 ctsio->kern_data_len = sizeof(*data); 7278 ctsio->kern_total_len = sizeof(*data); 7279 } else { 7280 ctsio->residual = 0; 7281 ctsio->kern_data_len = alloc_len; 7282 ctsio->kern_total_len = alloc_len; 7283 } 7284 ctsio->kern_data_resid = 0; 7285 ctsio->kern_rel_offset = 0; 7286 ctsio->kern_sg_entries = 0; 7287 7288 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7289 /* XXX KDM this may not be 512 bytes... */ 7290 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7291 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7292 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7293 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7294 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7295 7296 ctsio->scsi_status = SCSI_STATUS_OK; 7297 7298 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7299 ctsio->be_move_done = ctl_config_move_done; 7300 ctl_datamove((union ctl_io *)ctsio); 7301 7302 return (CTL_RETVAL_COMPLETE); 7303} 7304 7305int 7306ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7307{ 7308 struct scsi_maintenance_in *cdb; 7309 int retval; 7310 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7311 int num_target_port_groups, num_target_ports, single; 7312 struct ctl_lun *lun; 7313 struct ctl_softc *softc; 7314 struct ctl_port *port; 7315 struct scsi_target_group_data *rtg_ptr; 7316 struct scsi_target_group_data_extended *rtg_ext_ptr; 7317 struct scsi_target_port_group_descriptor *tpg_desc; 7318 7319 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7320 7321 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7322 softc = control_softc; 7323 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7324 7325 retval = CTL_RETVAL_COMPLETE; 7326 7327 switch (cdb->byte2 & STG_PDF_MASK) { 7328 case STG_PDF_LENGTH: 7329 ext = 0; 7330 break; 7331 case STG_PDF_EXTENDED: 7332 ext = 1; 7333 break; 7334 default: 7335 ctl_set_invalid_field(/*ctsio*/ ctsio, 7336 /*sks_valid*/ 1, 7337 /*command*/ 1, 7338 /*field*/ 2, 7339 /*bit_valid*/ 1, 7340 /*bit*/ 5); 7341 ctl_done((union ctl_io *)ctsio); 7342 return(retval); 7343 } 7344 7345 single = ctl_is_single; 7346 if (single) 7347 num_target_port_groups = 1; 7348 else 7349 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7350 num_target_ports = 0; 7351 mtx_lock(&softc->ctl_lock); 7352 STAILQ_FOREACH(port, &softc->port_list, links) { 7353 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7354 continue; 7355 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7356 continue; 7357 num_target_ports++; 7358 } 7359 mtx_unlock(&softc->ctl_lock); 7360 7361 if (ext) 7362 total_len = sizeof(struct scsi_target_group_data_extended); 7363 else 7364 total_len = sizeof(struct scsi_target_group_data); 7365 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7366 num_target_port_groups + 7367 sizeof(struct scsi_target_port_descriptor) * 7368 num_target_ports * num_target_port_groups; 7369 7370 alloc_len = scsi_4btoul(cdb->length); 7371 7372 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7373 7374 ctsio->kern_sg_entries = 0; 7375 7376 if (total_len < alloc_len) { 7377 ctsio->residual = alloc_len - total_len; 7378 ctsio->kern_data_len = total_len; 7379 ctsio->kern_total_len = total_len; 7380 } else { 7381 ctsio->residual = 0; 7382 ctsio->kern_data_len = alloc_len; 7383 ctsio->kern_total_len = alloc_len; 7384 } 7385 ctsio->kern_data_resid = 0; 7386 ctsio->kern_rel_offset = 0; 7387 7388 if (ext) { 7389 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7390 ctsio->kern_data_ptr; 7391 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7392 rtg_ext_ptr->format_type = 0x10; 7393 rtg_ext_ptr->implicit_transition_time = 0; 7394 tpg_desc = &rtg_ext_ptr->groups[0]; 7395 } else { 7396 rtg_ptr = (struct scsi_target_group_data *) 7397 ctsio->kern_data_ptr; 7398 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7399 tpg_desc = &rtg_ptr->groups[0]; 7400 } 7401 7402 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7403 mtx_lock(&softc->ctl_lock); 7404 for (g = 0; g < num_target_port_groups; g++) { 7405 if (g == pg) 7406 tpg_desc->pref_state = TPG_PRIMARY | 7407 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7408 else 7409 tpg_desc->pref_state = 7410 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7411 tpg_desc->support = TPG_AO_SUP; 7412 if (!single) 7413 tpg_desc->support |= TPG_AN_SUP; 7414 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7415 tpg_desc->status = TPG_IMPLICIT; 7416 pc = 0; 7417 STAILQ_FOREACH(port, &softc->port_list, links) { 7418 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7419 continue; 7420 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7421 CTL_MAX_LUNS) 7422 continue; 7423 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7424 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7425 relative_target_port_identifier); 7426 pc++; 7427 } 7428 tpg_desc->target_port_count = pc; 7429 tpg_desc = (struct scsi_target_port_group_descriptor *) 7430 &tpg_desc->descriptors[pc]; 7431 } 7432 mtx_unlock(&softc->ctl_lock); 7433 7434 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7435 ctsio->be_move_done = ctl_config_move_done; 7436 7437 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7438 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7439 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7440 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7441 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7442 7443 ctl_datamove((union ctl_io *)ctsio); 7444 return(retval); 7445} 7446 7447int 7448ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7449{ 7450 struct ctl_lun *lun; 7451 struct scsi_report_supported_opcodes *cdb; 7452 const struct ctl_cmd_entry *entry, *sentry; 7453 struct scsi_report_supported_opcodes_all *all; 7454 struct scsi_report_supported_opcodes_descr *descr; 7455 struct scsi_report_supported_opcodes_one *one; 7456 int retval; 7457 int alloc_len, total_len; 7458 int opcode, service_action, i, j, num; 7459 7460 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7461 7462 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7463 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7464 7465 retval = CTL_RETVAL_COMPLETE; 7466 7467 opcode = cdb->requested_opcode; 7468 service_action = scsi_2btoul(cdb->requested_service_action); 7469 switch (cdb->options & RSO_OPTIONS_MASK) { 7470 case RSO_OPTIONS_ALL: 7471 num = 0; 7472 for (i = 0; i < 256; i++) { 7473 entry = &ctl_cmd_table[i]; 7474 if (entry->flags & CTL_CMD_FLAG_SA5) { 7475 for (j = 0; j < 32; j++) { 7476 sentry = &((const struct ctl_cmd_entry *) 7477 entry->execute)[j]; 7478 if (ctl_cmd_applicable( 7479 lun->be_lun->lun_type, sentry)) 7480 num++; 7481 } 7482 } else { 7483 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7484 entry)) 7485 num++; 7486 } 7487 } 7488 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7489 num * sizeof(struct scsi_report_supported_opcodes_descr); 7490 break; 7491 case RSO_OPTIONS_OC: 7492 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7493 ctl_set_invalid_field(/*ctsio*/ ctsio, 7494 /*sks_valid*/ 1, 7495 /*command*/ 1, 7496 /*field*/ 2, 7497 /*bit_valid*/ 1, 7498 /*bit*/ 2); 7499 ctl_done((union ctl_io *)ctsio); 7500 return (CTL_RETVAL_COMPLETE); 7501 } 7502 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7503 break; 7504 case RSO_OPTIONS_OC_SA: 7505 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7506 service_action >= 32) { 7507 ctl_set_invalid_field(/*ctsio*/ ctsio, 7508 /*sks_valid*/ 1, 7509 /*command*/ 1, 7510 /*field*/ 2, 7511 /*bit_valid*/ 1, 7512 /*bit*/ 2); 7513 ctl_done((union ctl_io *)ctsio); 7514 return (CTL_RETVAL_COMPLETE); 7515 } 7516 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7517 break; 7518 default: 7519 ctl_set_invalid_field(/*ctsio*/ ctsio, 7520 /*sks_valid*/ 1, 7521 /*command*/ 1, 7522 /*field*/ 2, 7523 /*bit_valid*/ 1, 7524 /*bit*/ 2); 7525 ctl_done((union ctl_io *)ctsio); 7526 return (CTL_RETVAL_COMPLETE); 7527 } 7528 7529 alloc_len = scsi_4btoul(cdb->length); 7530 7531 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7532 7533 ctsio->kern_sg_entries = 0; 7534 7535 if (total_len < alloc_len) { 7536 ctsio->residual = alloc_len - total_len; 7537 ctsio->kern_data_len = total_len; 7538 ctsio->kern_total_len = total_len; 7539 } else { 7540 ctsio->residual = 0; 7541 ctsio->kern_data_len = alloc_len; 7542 ctsio->kern_total_len = alloc_len; 7543 } 7544 ctsio->kern_data_resid = 0; 7545 ctsio->kern_rel_offset = 0; 7546 7547 switch (cdb->options & RSO_OPTIONS_MASK) { 7548 case RSO_OPTIONS_ALL: 7549 all = (struct scsi_report_supported_opcodes_all *) 7550 ctsio->kern_data_ptr; 7551 num = 0; 7552 for (i = 0; i < 256; i++) { 7553 entry = &ctl_cmd_table[i]; 7554 if (entry->flags & CTL_CMD_FLAG_SA5) { 7555 for (j = 0; j < 32; j++) { 7556 sentry = &((const struct ctl_cmd_entry *) 7557 entry->execute)[j]; 7558 if (!ctl_cmd_applicable( 7559 lun->be_lun->lun_type, sentry)) 7560 continue; 7561 descr = &all->descr[num++]; 7562 descr->opcode = i; 7563 scsi_ulto2b(j, descr->service_action); 7564 descr->flags = RSO_SERVACTV; 7565 scsi_ulto2b(sentry->length, 7566 descr->cdb_length); 7567 } 7568 } else { 7569 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7570 entry)) 7571 continue; 7572 descr = &all->descr[num++]; 7573 descr->opcode = i; 7574 scsi_ulto2b(0, descr->service_action); 7575 descr->flags = 0; 7576 scsi_ulto2b(entry->length, descr->cdb_length); 7577 } 7578 } 7579 scsi_ulto4b( 7580 num * sizeof(struct scsi_report_supported_opcodes_descr), 7581 all->length); 7582 break; 7583 case RSO_OPTIONS_OC: 7584 one = (struct scsi_report_supported_opcodes_one *) 7585 ctsio->kern_data_ptr; 7586 entry = &ctl_cmd_table[opcode]; 7587 goto fill_one; 7588 case RSO_OPTIONS_OC_SA: 7589 one = (struct scsi_report_supported_opcodes_one *) 7590 ctsio->kern_data_ptr; 7591 entry = &ctl_cmd_table[opcode]; 7592 entry = &((const struct ctl_cmd_entry *) 7593 entry->execute)[service_action]; 7594fill_one: 7595 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7596 one->support = 3; 7597 scsi_ulto2b(entry->length, one->cdb_length); 7598 one->cdb_usage[0] = opcode; 7599 memcpy(&one->cdb_usage[1], entry->usage, 7600 entry->length - 1); 7601 } else 7602 one->support = 1; 7603 break; 7604 } 7605 7606 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7607 ctsio->be_move_done = ctl_config_move_done; 7608 7609 ctl_datamove((union ctl_io *)ctsio); 7610 return(retval); 7611} 7612 7613int 7614ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7615{ 7616 struct ctl_lun *lun; 7617 struct scsi_report_supported_tmf *cdb; 7618 struct scsi_report_supported_tmf_data *data; 7619 int retval; 7620 int alloc_len, total_len; 7621 7622 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7623 7624 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7625 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7626 7627 retval = CTL_RETVAL_COMPLETE; 7628 7629 total_len = sizeof(struct scsi_report_supported_tmf_data); 7630 alloc_len = scsi_4btoul(cdb->length); 7631 7632 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7633 7634 ctsio->kern_sg_entries = 0; 7635 7636 if (total_len < alloc_len) { 7637 ctsio->residual = alloc_len - total_len; 7638 ctsio->kern_data_len = total_len; 7639 ctsio->kern_total_len = total_len; 7640 } else { 7641 ctsio->residual = 0; 7642 ctsio->kern_data_len = alloc_len; 7643 ctsio->kern_total_len = alloc_len; 7644 } 7645 ctsio->kern_data_resid = 0; 7646 ctsio->kern_rel_offset = 0; 7647 7648 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7649 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7650 data->byte2 |= RST_ITNRS; 7651 7652 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7653 ctsio->be_move_done = ctl_config_move_done; 7654 7655 ctl_datamove((union ctl_io *)ctsio); 7656 return (retval); 7657} 7658 7659int 7660ctl_report_timestamp(struct ctl_scsiio *ctsio) 7661{ 7662 struct ctl_lun *lun; 7663 struct scsi_report_timestamp *cdb; 7664 struct scsi_report_timestamp_data *data; 7665 struct timeval tv; 7666 int64_t timestamp; 7667 int retval; 7668 int alloc_len, total_len; 7669 7670 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7671 7672 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7673 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7674 7675 retval = CTL_RETVAL_COMPLETE; 7676 7677 total_len = sizeof(struct scsi_report_timestamp_data); 7678 alloc_len = scsi_4btoul(cdb->length); 7679 7680 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7681 7682 ctsio->kern_sg_entries = 0; 7683 7684 if (total_len < alloc_len) { 7685 ctsio->residual = alloc_len - total_len; 7686 ctsio->kern_data_len = total_len; 7687 ctsio->kern_total_len = total_len; 7688 } else { 7689 ctsio->residual = 0; 7690 ctsio->kern_data_len = alloc_len; 7691 ctsio->kern_total_len = alloc_len; 7692 } 7693 ctsio->kern_data_resid = 0; 7694 ctsio->kern_rel_offset = 0; 7695 7696 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7697 scsi_ulto2b(sizeof(*data) - 2, data->length); 7698 data->origin = RTS_ORIG_OUTSIDE; 7699 getmicrotime(&tv); 7700 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7701 scsi_ulto4b(timestamp >> 16, data->timestamp); 7702 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7703 7704 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7705 ctsio->be_move_done = ctl_config_move_done; 7706 7707 ctl_datamove((union ctl_io *)ctsio); 7708 return (retval); 7709} 7710 7711int 7712ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7713{ 7714 struct scsi_per_res_in *cdb; 7715 int alloc_len, total_len = 0; 7716 /* struct scsi_per_res_in_rsrv in_data; */ 7717 struct ctl_lun *lun; 7718 struct ctl_softc *softc; 7719 7720 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7721 7722 softc = control_softc; 7723 7724 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7725 7726 alloc_len = scsi_2btoul(cdb->length); 7727 7728 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7729 7730retry: 7731 mtx_lock(&lun->lun_lock); 7732 switch (cdb->action) { 7733 case SPRI_RK: /* read keys */ 7734 total_len = sizeof(struct scsi_per_res_in_keys) + 7735 lun->pr_key_count * 7736 sizeof(struct scsi_per_res_key); 7737 break; 7738 case SPRI_RR: /* read reservation */ 7739 if (lun->flags & CTL_LUN_PR_RESERVED) 7740 total_len = sizeof(struct scsi_per_res_in_rsrv); 7741 else 7742 total_len = sizeof(struct scsi_per_res_in_header); 7743 break; 7744 case SPRI_RC: /* report capabilities */ 7745 total_len = sizeof(struct scsi_per_res_cap); 7746 break; 7747 case SPRI_RS: /* read full status */ 7748 total_len = sizeof(struct scsi_per_res_in_header) + 7749 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7750 lun->pr_key_count; 7751 break; 7752 default: 7753 panic("Invalid PR type %x", cdb->action); 7754 } 7755 mtx_unlock(&lun->lun_lock); 7756 7757 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7758 7759 if (total_len < alloc_len) { 7760 ctsio->residual = alloc_len - total_len; 7761 ctsio->kern_data_len = total_len; 7762 ctsio->kern_total_len = total_len; 7763 } else { 7764 ctsio->residual = 0; 7765 ctsio->kern_data_len = alloc_len; 7766 ctsio->kern_total_len = alloc_len; 7767 } 7768 7769 ctsio->kern_data_resid = 0; 7770 ctsio->kern_rel_offset = 0; 7771 ctsio->kern_sg_entries = 0; 7772 7773 mtx_lock(&lun->lun_lock); 7774 switch (cdb->action) { 7775 case SPRI_RK: { // read keys 7776 struct scsi_per_res_in_keys *res_keys; 7777 int i, key_count; 7778 7779 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7780 7781 /* 7782 * We had to drop the lock to allocate our buffer, which 7783 * leaves time for someone to come in with another 7784 * persistent reservation. (That is unlikely, though, 7785 * since this should be the only persistent reservation 7786 * command active right now.) 7787 */ 7788 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7789 (lun->pr_key_count * 7790 sizeof(struct scsi_per_res_key)))){ 7791 mtx_unlock(&lun->lun_lock); 7792 free(ctsio->kern_data_ptr, M_CTL); 7793 printf("%s: reservation length changed, retrying\n", 7794 __func__); 7795 goto retry; 7796 } 7797 7798 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7799 7800 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7801 lun->pr_key_count, res_keys->header.length); 7802 7803 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7804 if (!lun->per_res[i].registered) 7805 continue; 7806 7807 /* 7808 * We used lun->pr_key_count to calculate the 7809 * size to allocate. If it turns out the number of 7810 * initiators with the registered flag set is 7811 * larger than that (i.e. they haven't been kept in 7812 * sync), we've got a problem. 7813 */ 7814 if (key_count >= lun->pr_key_count) { 7815#ifdef NEEDTOPORT 7816 csevent_log(CSC_CTL | CSC_SHELF_SW | 7817 CTL_PR_ERROR, 7818 csevent_LogType_Fault, 7819 csevent_AlertLevel_Yellow, 7820 csevent_FRU_ShelfController, 7821 csevent_FRU_Firmware, 7822 csevent_FRU_Unknown, 7823 "registered keys %d >= key " 7824 "count %d", key_count, 7825 lun->pr_key_count); 7826#endif 7827 key_count++; 7828 continue; 7829 } 7830 memcpy(res_keys->keys[key_count].key, 7831 lun->per_res[i].res_key.key, 7832 ctl_min(sizeof(res_keys->keys[key_count].key), 7833 sizeof(lun->per_res[i].res_key))); 7834 key_count++; 7835 } 7836 break; 7837 } 7838 case SPRI_RR: { // read reservation 7839 struct scsi_per_res_in_rsrv *res; 7840 int tmp_len, header_only; 7841 7842 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7843 7844 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7845 7846 if (lun->flags & CTL_LUN_PR_RESERVED) 7847 { 7848 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7849 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7850 res->header.length); 7851 header_only = 0; 7852 } else { 7853 tmp_len = sizeof(struct scsi_per_res_in_header); 7854 scsi_ulto4b(0, res->header.length); 7855 header_only = 1; 7856 } 7857 7858 /* 7859 * We had to drop the lock to allocate our buffer, which 7860 * leaves time for someone to come in with another 7861 * persistent reservation. (That is unlikely, though, 7862 * since this should be the only persistent reservation 7863 * command active right now.) 7864 */ 7865 if (tmp_len != total_len) { 7866 mtx_unlock(&lun->lun_lock); 7867 free(ctsio->kern_data_ptr, M_CTL); 7868 printf("%s: reservation status changed, retrying\n", 7869 __func__); 7870 goto retry; 7871 } 7872 7873 /* 7874 * No reservation held, so we're done. 7875 */ 7876 if (header_only != 0) 7877 break; 7878 7879 /* 7880 * If the registration is an All Registrants type, the key 7881 * is 0, since it doesn't really matter. 7882 */ 7883 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7884 memcpy(res->data.reservation, 7885 &lun->per_res[lun->pr_res_idx].res_key, 7886 sizeof(struct scsi_per_res_key)); 7887 } 7888 res->data.scopetype = lun->res_type; 7889 break; 7890 } 7891 case SPRI_RC: //report capabilities 7892 { 7893 struct scsi_per_res_cap *res_cap; 7894 uint16_t type_mask; 7895 7896 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7897 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7898 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7899 type_mask = SPRI_TM_WR_EX_AR | 7900 SPRI_TM_EX_AC_RO | 7901 SPRI_TM_WR_EX_RO | 7902 SPRI_TM_EX_AC | 7903 SPRI_TM_WR_EX | 7904 SPRI_TM_EX_AC_AR; 7905 scsi_ulto2b(type_mask, res_cap->type_mask); 7906 break; 7907 } 7908 case SPRI_RS: { // read full status 7909 struct scsi_per_res_in_full *res_status; 7910 struct scsi_per_res_in_full_desc *res_desc; 7911 struct ctl_port *port; 7912 int i, len; 7913 7914 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7915 7916 /* 7917 * We had to drop the lock to allocate our buffer, which 7918 * leaves time for someone to come in with another 7919 * persistent reservation. (That is unlikely, though, 7920 * since this should be the only persistent reservation 7921 * command active right now.) 7922 */ 7923 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7924 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7925 lun->pr_key_count)){ 7926 mtx_unlock(&lun->lun_lock); 7927 free(ctsio->kern_data_ptr, M_CTL); 7928 printf("%s: reservation length changed, retrying\n", 7929 __func__); 7930 goto retry; 7931 } 7932 7933 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7934 7935 res_desc = &res_status->desc[0]; 7936 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7937 if (!lun->per_res[i].registered) 7938 continue; 7939 7940 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7941 sizeof(res_desc->res_key)); 7942 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7943 (lun->pr_res_idx == i || 7944 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7945 res_desc->flags = SPRI_FULL_R_HOLDER; 7946 res_desc->scopetype = lun->res_type; 7947 } 7948 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7949 res_desc->rel_trgt_port_id); 7950 len = 0; 7951 port = softc->ctl_ports[ 7952 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7953 if (port != NULL) 7954 len = ctl_create_iid(port, 7955 i % CTL_MAX_INIT_PER_PORT, 7956 res_desc->transport_id); 7957 scsi_ulto4b(len, res_desc->additional_length); 7958 res_desc = (struct scsi_per_res_in_full_desc *) 7959 &res_desc->transport_id[len]; 7960 } 7961 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7962 res_status->header.length); 7963 break; 7964 } 7965 default: 7966 /* 7967 * This is a bug, because we just checked for this above, 7968 * and should have returned an error. 7969 */ 7970 panic("Invalid PR type %x", cdb->action); 7971 break; /* NOTREACHED */ 7972 } 7973 mtx_unlock(&lun->lun_lock); 7974 7975 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7976 ctsio->be_move_done = ctl_config_move_done; 7977 7978 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7979 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7980 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7981 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7982 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7983 7984 ctl_datamove((union ctl_io *)ctsio); 7985 7986 return (CTL_RETVAL_COMPLETE); 7987} 7988 7989/* 7990 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7991 * it should return. 7992 */ 7993static int 7994ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7995 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7996 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7997 struct scsi_per_res_out_parms* param) 7998{ 7999 union ctl_ha_msg persis_io; 8000 int retval, i; 8001 int isc_retval; 8002 8003 retval = 0; 8004 8005 mtx_lock(&lun->lun_lock); 8006 if (sa_res_key == 0) { 8007 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8008 /* validate scope and type */ 8009 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8010 SPR_LU_SCOPE) { 8011 mtx_unlock(&lun->lun_lock); 8012 ctl_set_invalid_field(/*ctsio*/ ctsio, 8013 /*sks_valid*/ 1, 8014 /*command*/ 1, 8015 /*field*/ 2, 8016 /*bit_valid*/ 1, 8017 /*bit*/ 4); 8018 ctl_done((union ctl_io *)ctsio); 8019 return (1); 8020 } 8021 8022 if (type>8 || type==2 || type==4 || type==0) { 8023 mtx_unlock(&lun->lun_lock); 8024 ctl_set_invalid_field(/*ctsio*/ ctsio, 8025 /*sks_valid*/ 1, 8026 /*command*/ 1, 8027 /*field*/ 2, 8028 /*bit_valid*/ 1, 8029 /*bit*/ 0); 8030 ctl_done((union ctl_io *)ctsio); 8031 return (1); 8032 } 8033 8034 /* temporarily unregister this nexus */ 8035 lun->per_res[residx].registered = 0; 8036 8037 /* 8038 * Unregister everybody else and build UA for 8039 * them 8040 */ 8041 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8042 if (lun->per_res[i].registered == 0) 8043 continue; 8044 8045 if (!persis_offset 8046 && i <CTL_MAX_INITIATORS) 8047 lun->pending_ua[i] |= 8048 CTL_UA_REG_PREEMPT; 8049 else if (persis_offset 8050 && i >= persis_offset) 8051 lun->pending_ua[i-persis_offset] |= 8052 CTL_UA_REG_PREEMPT; 8053 lun->per_res[i].registered = 0; 8054 memset(&lun->per_res[i].res_key, 0, 8055 sizeof(struct scsi_per_res_key)); 8056 } 8057 lun->per_res[residx].registered = 1; 8058 lun->pr_key_count = 1; 8059 lun->res_type = type; 8060 if (lun->res_type != SPR_TYPE_WR_EX_AR 8061 && lun->res_type != SPR_TYPE_EX_AC_AR) 8062 lun->pr_res_idx = residx; 8063 8064 /* send msg to other side */ 8065 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8066 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8067 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8068 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8069 persis_io.pr.pr_info.res_type = type; 8070 memcpy(persis_io.pr.pr_info.sa_res_key, 8071 param->serv_act_res_key, 8072 sizeof(param->serv_act_res_key)); 8073 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8074 &persis_io, sizeof(persis_io), 0)) > 8075 CTL_HA_STATUS_SUCCESS) { 8076 printf("CTL:Persis Out error returned " 8077 "from ctl_ha_msg_send %d\n", 8078 isc_retval); 8079 } 8080 } else { 8081 /* not all registrants */ 8082 mtx_unlock(&lun->lun_lock); 8083 free(ctsio->kern_data_ptr, M_CTL); 8084 ctl_set_invalid_field(ctsio, 8085 /*sks_valid*/ 1, 8086 /*command*/ 0, 8087 /*field*/ 8, 8088 /*bit_valid*/ 0, 8089 /*bit*/ 0); 8090 ctl_done((union ctl_io *)ctsio); 8091 return (1); 8092 } 8093 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8094 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8095 int found = 0; 8096 8097 if (res_key == sa_res_key) { 8098 /* special case */ 8099 /* 8100 * The spec implies this is not good but doesn't 8101 * say what to do. There are two choices either 8102 * generate a res conflict or check condition 8103 * with illegal field in parameter data. Since 8104 * that is what is done when the sa_res_key is 8105 * zero I'll take that approach since this has 8106 * to do with the sa_res_key. 8107 */ 8108 mtx_unlock(&lun->lun_lock); 8109 free(ctsio->kern_data_ptr, M_CTL); 8110 ctl_set_invalid_field(ctsio, 8111 /*sks_valid*/ 1, 8112 /*command*/ 0, 8113 /*field*/ 8, 8114 /*bit_valid*/ 0, 8115 /*bit*/ 0); 8116 ctl_done((union ctl_io *)ctsio); 8117 return (1); 8118 } 8119 8120 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8121 if (lun->per_res[i].registered 8122 && memcmp(param->serv_act_res_key, 8123 lun->per_res[i].res_key.key, 8124 sizeof(struct scsi_per_res_key)) != 0) 8125 continue; 8126 8127 found = 1; 8128 lun->per_res[i].registered = 0; 8129 memset(&lun->per_res[i].res_key, 0, 8130 sizeof(struct scsi_per_res_key)); 8131 lun->pr_key_count--; 8132 8133 if (!persis_offset && i < CTL_MAX_INITIATORS) 8134 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8135 else if (persis_offset && i >= persis_offset) 8136 lun->pending_ua[i-persis_offset] |= 8137 CTL_UA_REG_PREEMPT; 8138 } 8139 if (!found) { 8140 mtx_unlock(&lun->lun_lock); 8141 free(ctsio->kern_data_ptr, M_CTL); 8142 ctl_set_reservation_conflict(ctsio); 8143 ctl_done((union ctl_io *)ctsio); 8144 return (CTL_RETVAL_COMPLETE); 8145 } 8146 /* send msg to other side */ 8147 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8148 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8149 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8150 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8151 persis_io.pr.pr_info.res_type = type; 8152 memcpy(persis_io.pr.pr_info.sa_res_key, 8153 param->serv_act_res_key, 8154 sizeof(param->serv_act_res_key)); 8155 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8156 &persis_io, sizeof(persis_io), 0)) > 8157 CTL_HA_STATUS_SUCCESS) { 8158 printf("CTL:Persis Out error returned from " 8159 "ctl_ha_msg_send %d\n", isc_retval); 8160 } 8161 } else { 8162 /* Reserved but not all registrants */ 8163 /* sa_res_key is res holder */ 8164 if (memcmp(param->serv_act_res_key, 8165 lun->per_res[lun->pr_res_idx].res_key.key, 8166 sizeof(struct scsi_per_res_key)) == 0) { 8167 /* validate scope and type */ 8168 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8169 SPR_LU_SCOPE) { 8170 mtx_unlock(&lun->lun_lock); 8171 ctl_set_invalid_field(/*ctsio*/ ctsio, 8172 /*sks_valid*/ 1, 8173 /*command*/ 1, 8174 /*field*/ 2, 8175 /*bit_valid*/ 1, 8176 /*bit*/ 4); 8177 ctl_done((union ctl_io *)ctsio); 8178 return (1); 8179 } 8180 8181 if (type>8 || type==2 || type==4 || type==0) { 8182 mtx_unlock(&lun->lun_lock); 8183 ctl_set_invalid_field(/*ctsio*/ ctsio, 8184 /*sks_valid*/ 1, 8185 /*command*/ 1, 8186 /*field*/ 2, 8187 /*bit_valid*/ 1, 8188 /*bit*/ 0); 8189 ctl_done((union ctl_io *)ctsio); 8190 return (1); 8191 } 8192 8193 /* 8194 * Do the following: 8195 * if sa_res_key != res_key remove all 8196 * registrants w/sa_res_key and generate UA 8197 * for these registrants(Registrations 8198 * Preempted) if it wasn't an exclusive 8199 * reservation generate UA(Reservations 8200 * Preempted) for all other registered nexuses 8201 * if the type has changed. Establish the new 8202 * reservation and holder. If res_key and 8203 * sa_res_key are the same do the above 8204 * except don't unregister the res holder. 8205 */ 8206 8207 /* 8208 * Temporarily unregister so it won't get 8209 * removed or UA generated 8210 */ 8211 lun->per_res[residx].registered = 0; 8212 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8213 if (lun->per_res[i].registered == 0) 8214 continue; 8215 8216 if (memcmp(param->serv_act_res_key, 8217 lun->per_res[i].res_key.key, 8218 sizeof(struct scsi_per_res_key)) == 0) { 8219 lun->per_res[i].registered = 0; 8220 memset(&lun->per_res[i].res_key, 8221 0, 8222 sizeof(struct scsi_per_res_key)); 8223 lun->pr_key_count--; 8224 8225 if (!persis_offset 8226 && i < CTL_MAX_INITIATORS) 8227 lun->pending_ua[i] |= 8228 CTL_UA_REG_PREEMPT; 8229 else if (persis_offset 8230 && i >= persis_offset) 8231 lun->pending_ua[i-persis_offset] |= 8232 CTL_UA_REG_PREEMPT; 8233 } else if (type != lun->res_type 8234 && (lun->res_type == SPR_TYPE_WR_EX_RO 8235 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8236 if (!persis_offset 8237 && i < CTL_MAX_INITIATORS) 8238 lun->pending_ua[i] |= 8239 CTL_UA_RES_RELEASE; 8240 else if (persis_offset 8241 && i >= persis_offset) 8242 lun->pending_ua[ 8243 i-persis_offset] |= 8244 CTL_UA_RES_RELEASE; 8245 } 8246 } 8247 lun->per_res[residx].registered = 1; 8248 lun->res_type = type; 8249 if (lun->res_type != SPR_TYPE_WR_EX_AR 8250 && lun->res_type != SPR_TYPE_EX_AC_AR) 8251 lun->pr_res_idx = residx; 8252 else 8253 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8254 8255 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8256 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8257 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8258 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8259 persis_io.pr.pr_info.res_type = type; 8260 memcpy(persis_io.pr.pr_info.sa_res_key, 8261 param->serv_act_res_key, 8262 sizeof(param->serv_act_res_key)); 8263 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8264 &persis_io, sizeof(persis_io), 0)) > 8265 CTL_HA_STATUS_SUCCESS) { 8266 printf("CTL:Persis Out error returned " 8267 "from ctl_ha_msg_send %d\n", 8268 isc_retval); 8269 } 8270 } else { 8271 /* 8272 * sa_res_key is not the res holder just 8273 * remove registrants 8274 */ 8275 int found=0; 8276 8277 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8278 if (memcmp(param->serv_act_res_key, 8279 lun->per_res[i].res_key.key, 8280 sizeof(struct scsi_per_res_key)) != 0) 8281 continue; 8282 8283 found = 1; 8284 lun->per_res[i].registered = 0; 8285 memset(&lun->per_res[i].res_key, 0, 8286 sizeof(struct scsi_per_res_key)); 8287 lun->pr_key_count--; 8288 8289 if (!persis_offset 8290 && i < CTL_MAX_INITIATORS) 8291 lun->pending_ua[i] |= 8292 CTL_UA_REG_PREEMPT; 8293 else if (persis_offset 8294 && i >= persis_offset) 8295 lun->pending_ua[i-persis_offset] |= 8296 CTL_UA_REG_PREEMPT; 8297 } 8298 8299 if (!found) { 8300 mtx_unlock(&lun->lun_lock); 8301 free(ctsio->kern_data_ptr, M_CTL); 8302 ctl_set_reservation_conflict(ctsio); 8303 ctl_done((union ctl_io *)ctsio); 8304 return (1); 8305 } 8306 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8307 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8308 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8309 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8310 persis_io.pr.pr_info.res_type = type; 8311 memcpy(persis_io.pr.pr_info.sa_res_key, 8312 param->serv_act_res_key, 8313 sizeof(param->serv_act_res_key)); 8314 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8315 &persis_io, sizeof(persis_io), 0)) > 8316 CTL_HA_STATUS_SUCCESS) { 8317 printf("CTL:Persis Out error returned " 8318 "from ctl_ha_msg_send %d\n", 8319 isc_retval); 8320 } 8321 } 8322 } 8323 8324 lun->PRGeneration++; 8325 mtx_unlock(&lun->lun_lock); 8326 8327 return (retval); 8328} 8329 8330static void 8331ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8332{ 8333 int i; 8334 8335 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8336 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8337 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8338 msg->pr.pr_info.sa_res_key, 8339 sizeof(struct scsi_per_res_key)) != 0) { 8340 uint64_t sa_res_key; 8341 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8342 8343 if (sa_res_key == 0) { 8344 /* temporarily unregister this nexus */ 8345 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8346 8347 /* 8348 * Unregister everybody else and build UA for 8349 * them 8350 */ 8351 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8352 if (lun->per_res[i].registered == 0) 8353 continue; 8354 8355 if (!persis_offset 8356 && i < CTL_MAX_INITIATORS) 8357 lun->pending_ua[i] |= 8358 CTL_UA_REG_PREEMPT; 8359 else if (persis_offset && i >= persis_offset) 8360 lun->pending_ua[i - persis_offset] |= 8361 CTL_UA_REG_PREEMPT; 8362 lun->per_res[i].registered = 0; 8363 memset(&lun->per_res[i].res_key, 0, 8364 sizeof(struct scsi_per_res_key)); 8365 } 8366 8367 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8368 lun->pr_key_count = 1; 8369 lun->res_type = msg->pr.pr_info.res_type; 8370 if (lun->res_type != SPR_TYPE_WR_EX_AR 8371 && lun->res_type != SPR_TYPE_EX_AC_AR) 8372 lun->pr_res_idx = msg->pr.pr_info.residx; 8373 } else { 8374 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8375 if (memcmp(msg->pr.pr_info.sa_res_key, 8376 lun->per_res[i].res_key.key, 8377 sizeof(struct scsi_per_res_key)) != 0) 8378 continue; 8379 8380 lun->per_res[i].registered = 0; 8381 memset(&lun->per_res[i].res_key, 0, 8382 sizeof(struct scsi_per_res_key)); 8383 lun->pr_key_count--; 8384 8385 if (!persis_offset 8386 && i < persis_offset) 8387 lun->pending_ua[i] |= 8388 CTL_UA_REG_PREEMPT; 8389 else if (persis_offset 8390 && i >= persis_offset) 8391 lun->pending_ua[i - persis_offset] |= 8392 CTL_UA_REG_PREEMPT; 8393 } 8394 } 8395 } else { 8396 /* 8397 * Temporarily unregister so it won't get removed 8398 * or UA generated 8399 */ 8400 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8401 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8402 if (lun->per_res[i].registered == 0) 8403 continue; 8404 8405 if (memcmp(msg->pr.pr_info.sa_res_key, 8406 lun->per_res[i].res_key.key, 8407 sizeof(struct scsi_per_res_key)) == 0) { 8408 lun->per_res[i].registered = 0; 8409 memset(&lun->per_res[i].res_key, 0, 8410 sizeof(struct scsi_per_res_key)); 8411 lun->pr_key_count--; 8412 if (!persis_offset 8413 && i < CTL_MAX_INITIATORS) 8414 lun->pending_ua[i] |= 8415 CTL_UA_REG_PREEMPT; 8416 else if (persis_offset 8417 && i >= persis_offset) 8418 lun->pending_ua[i - persis_offset] |= 8419 CTL_UA_REG_PREEMPT; 8420 } else if (msg->pr.pr_info.res_type != lun->res_type 8421 && (lun->res_type == SPR_TYPE_WR_EX_RO 8422 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8423 if (!persis_offset 8424 && i < persis_offset) 8425 lun->pending_ua[i] |= 8426 CTL_UA_RES_RELEASE; 8427 else if (persis_offset 8428 && i >= persis_offset) 8429 lun->pending_ua[i - persis_offset] |= 8430 CTL_UA_RES_RELEASE; 8431 } 8432 } 8433 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8434 lun->res_type = msg->pr.pr_info.res_type; 8435 if (lun->res_type != SPR_TYPE_WR_EX_AR 8436 && lun->res_type != SPR_TYPE_EX_AC_AR) 8437 lun->pr_res_idx = msg->pr.pr_info.residx; 8438 else 8439 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8440 } 8441 lun->PRGeneration++; 8442 8443} 8444 8445 8446int 8447ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8448{ 8449 int retval; 8450 int isc_retval; 8451 u_int32_t param_len; 8452 struct scsi_per_res_out *cdb; 8453 struct ctl_lun *lun; 8454 struct scsi_per_res_out_parms* param; 8455 struct ctl_softc *softc; 8456 uint32_t residx; 8457 uint64_t res_key, sa_res_key; 8458 uint8_t type; 8459 union ctl_ha_msg persis_io; 8460 int i; 8461 8462 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8463 8464 retval = CTL_RETVAL_COMPLETE; 8465 8466 softc = control_softc; 8467 8468 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8469 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8470 8471 /* 8472 * We only support whole-LUN scope. The scope & type are ignored for 8473 * register, register and ignore existing key and clear. 8474 * We sometimes ignore scope and type on preempts too!! 8475 * Verify reservation type here as well. 8476 */ 8477 type = cdb->scope_type & SPR_TYPE_MASK; 8478 if ((cdb->action == SPRO_RESERVE) 8479 || (cdb->action == SPRO_RELEASE)) { 8480 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8481 ctl_set_invalid_field(/*ctsio*/ ctsio, 8482 /*sks_valid*/ 1, 8483 /*command*/ 1, 8484 /*field*/ 2, 8485 /*bit_valid*/ 1, 8486 /*bit*/ 4); 8487 ctl_done((union ctl_io *)ctsio); 8488 return (CTL_RETVAL_COMPLETE); 8489 } 8490 8491 if (type>8 || type==2 || type==4 || type==0) { 8492 ctl_set_invalid_field(/*ctsio*/ ctsio, 8493 /*sks_valid*/ 1, 8494 /*command*/ 1, 8495 /*field*/ 2, 8496 /*bit_valid*/ 1, 8497 /*bit*/ 0); 8498 ctl_done((union ctl_io *)ctsio); 8499 return (CTL_RETVAL_COMPLETE); 8500 } 8501 } 8502 8503 param_len = scsi_4btoul(cdb->length); 8504 8505 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8506 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8507 ctsio->kern_data_len = param_len; 8508 ctsio->kern_total_len = param_len; 8509 ctsio->kern_data_resid = 0; 8510 ctsio->kern_rel_offset = 0; 8511 ctsio->kern_sg_entries = 0; 8512 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8513 ctsio->be_move_done = ctl_config_move_done; 8514 ctl_datamove((union ctl_io *)ctsio); 8515 8516 return (CTL_RETVAL_COMPLETE); 8517 } 8518 8519 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8520 8521 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8522 res_key = scsi_8btou64(param->res_key.key); 8523 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8524 8525 /* 8526 * Validate the reservation key here except for SPRO_REG_IGNO 8527 * This must be done for all other service actions 8528 */ 8529 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8530 mtx_lock(&lun->lun_lock); 8531 if (lun->per_res[residx].registered) { 8532 if (memcmp(param->res_key.key, 8533 lun->per_res[residx].res_key.key, 8534 ctl_min(sizeof(param->res_key), 8535 sizeof(lun->per_res[residx].res_key))) != 0) { 8536 /* 8537 * The current key passed in doesn't match 8538 * the one the initiator previously 8539 * registered. 8540 */ 8541 mtx_unlock(&lun->lun_lock); 8542 free(ctsio->kern_data_ptr, M_CTL); 8543 ctl_set_reservation_conflict(ctsio); 8544 ctl_done((union ctl_io *)ctsio); 8545 return (CTL_RETVAL_COMPLETE); 8546 } 8547 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8548 /* 8549 * We are not registered 8550 */ 8551 mtx_unlock(&lun->lun_lock); 8552 free(ctsio->kern_data_ptr, M_CTL); 8553 ctl_set_reservation_conflict(ctsio); 8554 ctl_done((union ctl_io *)ctsio); 8555 return (CTL_RETVAL_COMPLETE); 8556 } else if (res_key != 0) { 8557 /* 8558 * We are not registered and trying to register but 8559 * the register key isn't zero. 8560 */ 8561 mtx_unlock(&lun->lun_lock); 8562 free(ctsio->kern_data_ptr, M_CTL); 8563 ctl_set_reservation_conflict(ctsio); 8564 ctl_done((union ctl_io *)ctsio); 8565 return (CTL_RETVAL_COMPLETE); 8566 } 8567 mtx_unlock(&lun->lun_lock); 8568 } 8569 8570 switch (cdb->action & SPRO_ACTION_MASK) { 8571 case SPRO_REGISTER: 8572 case SPRO_REG_IGNO: { 8573 8574#if 0 8575 printf("Registration received\n"); 8576#endif 8577 8578 /* 8579 * We don't support any of these options, as we report in 8580 * the read capabilities request (see 8581 * ctl_persistent_reserve_in(), above). 8582 */ 8583 if ((param->flags & SPR_SPEC_I_PT) 8584 || (param->flags & SPR_ALL_TG_PT) 8585 || (param->flags & SPR_APTPL)) { 8586 int bit_ptr; 8587 8588 if (param->flags & SPR_APTPL) 8589 bit_ptr = 0; 8590 else if (param->flags & SPR_ALL_TG_PT) 8591 bit_ptr = 2; 8592 else /* SPR_SPEC_I_PT */ 8593 bit_ptr = 3; 8594 8595 free(ctsio->kern_data_ptr, M_CTL); 8596 ctl_set_invalid_field(ctsio, 8597 /*sks_valid*/ 1, 8598 /*command*/ 0, 8599 /*field*/ 20, 8600 /*bit_valid*/ 1, 8601 /*bit*/ bit_ptr); 8602 ctl_done((union ctl_io *)ctsio); 8603 return (CTL_RETVAL_COMPLETE); 8604 } 8605 8606 mtx_lock(&lun->lun_lock); 8607 8608 /* 8609 * The initiator wants to clear the 8610 * key/unregister. 8611 */ 8612 if (sa_res_key == 0) { 8613 if ((res_key == 0 8614 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8615 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8616 && !lun->per_res[residx].registered)) { 8617 mtx_unlock(&lun->lun_lock); 8618 goto done; 8619 } 8620 8621 lun->per_res[residx].registered = 0; 8622 memset(&lun->per_res[residx].res_key, 8623 0, sizeof(lun->per_res[residx].res_key)); 8624 lun->pr_key_count--; 8625 8626 if (residx == lun->pr_res_idx) { 8627 lun->flags &= ~CTL_LUN_PR_RESERVED; 8628 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8629 8630 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8631 || lun->res_type == SPR_TYPE_EX_AC_RO) 8632 && lun->pr_key_count) { 8633 /* 8634 * If the reservation is a registrants 8635 * only type we need to generate a UA 8636 * for other registered inits. The 8637 * sense code should be RESERVATIONS 8638 * RELEASED 8639 */ 8640 8641 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8642 if (lun->per_res[ 8643 i+persis_offset].registered 8644 == 0) 8645 continue; 8646 lun->pending_ua[i] |= 8647 CTL_UA_RES_RELEASE; 8648 } 8649 } 8650 lun->res_type = 0; 8651 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8652 if (lun->pr_key_count==0) { 8653 lun->flags &= ~CTL_LUN_PR_RESERVED; 8654 lun->res_type = 0; 8655 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8656 } 8657 } 8658 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8659 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8660 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8661 persis_io.pr.pr_info.residx = residx; 8662 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8663 &persis_io, sizeof(persis_io), 0 )) > 8664 CTL_HA_STATUS_SUCCESS) { 8665 printf("CTL:Persis Out error returned from " 8666 "ctl_ha_msg_send %d\n", isc_retval); 8667 } 8668 } else /* sa_res_key != 0 */ { 8669 8670 /* 8671 * If we aren't registered currently then increment 8672 * the key count and set the registered flag. 8673 */ 8674 if (!lun->per_res[residx].registered) { 8675 lun->pr_key_count++; 8676 lun->per_res[residx].registered = 1; 8677 } 8678 8679 memcpy(&lun->per_res[residx].res_key, 8680 param->serv_act_res_key, 8681 ctl_min(sizeof(param->serv_act_res_key), 8682 sizeof(lun->per_res[residx].res_key))); 8683 8684 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8685 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8686 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8687 persis_io.pr.pr_info.residx = residx; 8688 memcpy(persis_io.pr.pr_info.sa_res_key, 8689 param->serv_act_res_key, 8690 sizeof(param->serv_act_res_key)); 8691 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8692 &persis_io, sizeof(persis_io), 0)) > 8693 CTL_HA_STATUS_SUCCESS) { 8694 printf("CTL:Persis Out error returned from " 8695 "ctl_ha_msg_send %d\n", isc_retval); 8696 } 8697 } 8698 lun->PRGeneration++; 8699 mtx_unlock(&lun->lun_lock); 8700 8701 break; 8702 } 8703 case SPRO_RESERVE: 8704#if 0 8705 printf("Reserve executed type %d\n", type); 8706#endif 8707 mtx_lock(&lun->lun_lock); 8708 if (lun->flags & CTL_LUN_PR_RESERVED) { 8709 /* 8710 * if this isn't the reservation holder and it's 8711 * not a "all registrants" type or if the type is 8712 * different then we have a conflict 8713 */ 8714 if ((lun->pr_res_idx != residx 8715 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8716 || lun->res_type != type) { 8717 mtx_unlock(&lun->lun_lock); 8718 free(ctsio->kern_data_ptr, M_CTL); 8719 ctl_set_reservation_conflict(ctsio); 8720 ctl_done((union ctl_io *)ctsio); 8721 return (CTL_RETVAL_COMPLETE); 8722 } 8723 mtx_unlock(&lun->lun_lock); 8724 } else /* create a reservation */ { 8725 /* 8726 * If it's not an "all registrants" type record 8727 * reservation holder 8728 */ 8729 if (type != SPR_TYPE_WR_EX_AR 8730 && type != SPR_TYPE_EX_AC_AR) 8731 lun->pr_res_idx = residx; /* Res holder */ 8732 else 8733 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8734 8735 lun->flags |= CTL_LUN_PR_RESERVED; 8736 lun->res_type = type; 8737 8738 mtx_unlock(&lun->lun_lock); 8739 8740 /* send msg to other side */ 8741 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8742 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8743 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8744 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8745 persis_io.pr.pr_info.res_type = type; 8746 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8747 &persis_io, sizeof(persis_io), 0)) > 8748 CTL_HA_STATUS_SUCCESS) { 8749 printf("CTL:Persis Out error returned from " 8750 "ctl_ha_msg_send %d\n", isc_retval); 8751 } 8752 } 8753 break; 8754 8755 case SPRO_RELEASE: 8756 mtx_lock(&lun->lun_lock); 8757 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8758 /* No reservation exists return good status */ 8759 mtx_unlock(&lun->lun_lock); 8760 goto done; 8761 } 8762 /* 8763 * Is this nexus a reservation holder? 8764 */ 8765 if (lun->pr_res_idx != residx 8766 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8767 /* 8768 * not a res holder return good status but 8769 * do nothing 8770 */ 8771 mtx_unlock(&lun->lun_lock); 8772 goto done; 8773 } 8774 8775 if (lun->res_type != type) { 8776 mtx_unlock(&lun->lun_lock); 8777 free(ctsio->kern_data_ptr, M_CTL); 8778 ctl_set_illegal_pr_release(ctsio); 8779 ctl_done((union ctl_io *)ctsio); 8780 return (CTL_RETVAL_COMPLETE); 8781 } 8782 8783 /* okay to release */ 8784 lun->flags &= ~CTL_LUN_PR_RESERVED; 8785 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8786 lun->res_type = 0; 8787 8788 /* 8789 * if this isn't an exclusive access 8790 * res generate UA for all other 8791 * registrants. 8792 */ 8793 if (type != SPR_TYPE_EX_AC 8794 && type != SPR_TYPE_WR_EX) { 8795 /* 8796 * temporarily unregister so we don't generate UA 8797 */ 8798 lun->per_res[residx].registered = 0; 8799 8800 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8801 if (lun->per_res[i+persis_offset].registered 8802 == 0) 8803 continue; 8804 lun->pending_ua[i] |= 8805 CTL_UA_RES_RELEASE; 8806 } 8807 8808 lun->per_res[residx].registered = 1; 8809 } 8810 mtx_unlock(&lun->lun_lock); 8811 /* Send msg to other side */ 8812 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8813 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8814 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8815 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8816 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8817 printf("CTL:Persis Out error returned from " 8818 "ctl_ha_msg_send %d\n", isc_retval); 8819 } 8820 break; 8821 8822 case SPRO_CLEAR: 8823 /* send msg to other side */ 8824 8825 mtx_lock(&lun->lun_lock); 8826 lun->flags &= ~CTL_LUN_PR_RESERVED; 8827 lun->res_type = 0; 8828 lun->pr_key_count = 0; 8829 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8830 8831 8832 memset(&lun->per_res[residx].res_key, 8833 0, sizeof(lun->per_res[residx].res_key)); 8834 lun->per_res[residx].registered = 0; 8835 8836 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8837 if (lun->per_res[i].registered) { 8838 if (!persis_offset && i < CTL_MAX_INITIATORS) 8839 lun->pending_ua[i] |= 8840 CTL_UA_RES_PREEMPT; 8841 else if (persis_offset && i >= persis_offset) 8842 lun->pending_ua[i-persis_offset] |= 8843 CTL_UA_RES_PREEMPT; 8844 8845 memset(&lun->per_res[i].res_key, 8846 0, sizeof(struct scsi_per_res_key)); 8847 lun->per_res[i].registered = 0; 8848 } 8849 lun->PRGeneration++; 8850 mtx_unlock(&lun->lun_lock); 8851 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8852 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8853 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8854 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8855 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8856 printf("CTL:Persis Out error returned from " 8857 "ctl_ha_msg_send %d\n", isc_retval); 8858 } 8859 break; 8860 8861 case SPRO_PREEMPT: { 8862 int nretval; 8863 8864 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8865 residx, ctsio, cdb, param); 8866 if (nretval != 0) 8867 return (CTL_RETVAL_COMPLETE); 8868 break; 8869 } 8870 default: 8871 panic("Invalid PR type %x", cdb->action); 8872 } 8873 8874done: 8875 free(ctsio->kern_data_ptr, M_CTL); 8876 ctl_set_success(ctsio); 8877 ctl_done((union ctl_io *)ctsio); 8878 8879 return (retval); 8880} 8881 8882/* 8883 * This routine is for handling a message from the other SC pertaining to 8884 * persistent reserve out. All the error checking will have been done 8885 * so only perorming the action need be done here to keep the two 8886 * in sync. 8887 */ 8888static void 8889ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8890{ 8891 struct ctl_lun *lun; 8892 struct ctl_softc *softc; 8893 int i; 8894 uint32_t targ_lun; 8895 8896 softc = control_softc; 8897 8898 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8899 lun = softc->ctl_luns[targ_lun]; 8900 mtx_lock(&lun->lun_lock); 8901 switch(msg->pr.pr_info.action) { 8902 case CTL_PR_REG_KEY: 8903 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8904 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8905 lun->pr_key_count++; 8906 } 8907 lun->PRGeneration++; 8908 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8909 msg->pr.pr_info.sa_res_key, 8910 sizeof(struct scsi_per_res_key)); 8911 break; 8912 8913 case CTL_PR_UNREG_KEY: 8914 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8915 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8916 0, sizeof(struct scsi_per_res_key)); 8917 lun->pr_key_count--; 8918 8919 /* XXX Need to see if the reservation has been released */ 8920 /* if so do we need to generate UA? */ 8921 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8922 lun->flags &= ~CTL_LUN_PR_RESERVED; 8923 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8924 8925 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8926 || lun->res_type == SPR_TYPE_EX_AC_RO) 8927 && lun->pr_key_count) { 8928 /* 8929 * If the reservation is a registrants 8930 * only type we need to generate a UA 8931 * for other registered inits. The 8932 * sense code should be RESERVATIONS 8933 * RELEASED 8934 */ 8935 8936 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8937 if (lun->per_res[i+ 8938 persis_offset].registered == 0) 8939 continue; 8940 8941 lun->pending_ua[i] |= 8942 CTL_UA_RES_RELEASE; 8943 } 8944 } 8945 lun->res_type = 0; 8946 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8947 if (lun->pr_key_count==0) { 8948 lun->flags &= ~CTL_LUN_PR_RESERVED; 8949 lun->res_type = 0; 8950 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8951 } 8952 } 8953 lun->PRGeneration++; 8954 break; 8955 8956 case CTL_PR_RESERVE: 8957 lun->flags |= CTL_LUN_PR_RESERVED; 8958 lun->res_type = msg->pr.pr_info.res_type; 8959 lun->pr_res_idx = msg->pr.pr_info.residx; 8960 8961 break; 8962 8963 case CTL_PR_RELEASE: 8964 /* 8965 * if this isn't an exclusive access res generate UA for all 8966 * other registrants. 8967 */ 8968 if (lun->res_type != SPR_TYPE_EX_AC 8969 && lun->res_type != SPR_TYPE_WR_EX) { 8970 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8971 if (lun->per_res[i+persis_offset].registered) 8972 lun->pending_ua[i] |= 8973 CTL_UA_RES_RELEASE; 8974 } 8975 8976 lun->flags &= ~CTL_LUN_PR_RESERVED; 8977 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8978 lun->res_type = 0; 8979 break; 8980 8981 case CTL_PR_PREEMPT: 8982 ctl_pro_preempt_other(lun, msg); 8983 break; 8984 case CTL_PR_CLEAR: 8985 lun->flags &= ~CTL_LUN_PR_RESERVED; 8986 lun->res_type = 0; 8987 lun->pr_key_count = 0; 8988 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8989 8990 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8991 if (lun->per_res[i].registered == 0) 8992 continue; 8993 if (!persis_offset 8994 && i < CTL_MAX_INITIATORS) 8995 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8996 else if (persis_offset 8997 && i >= persis_offset) 8998 lun->pending_ua[i-persis_offset] |= 8999 CTL_UA_RES_PREEMPT; 9000 memset(&lun->per_res[i].res_key, 0, 9001 sizeof(struct scsi_per_res_key)); 9002 lun->per_res[i].registered = 0; 9003 } 9004 lun->PRGeneration++; 9005 break; 9006 } 9007 9008 mtx_unlock(&lun->lun_lock); 9009} 9010 9011int 9012ctl_read_write(struct ctl_scsiio *ctsio) 9013{ 9014 struct ctl_lun *lun; 9015 struct ctl_lba_len_flags *lbalen; 9016 uint64_t lba; 9017 uint32_t num_blocks; 9018 int flags, retval; 9019 int isread; 9020 9021 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9022 9023 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9024 9025 flags = 0; 9026 retval = CTL_RETVAL_COMPLETE; 9027 9028 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9029 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9030 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9031 uint32_t residx; 9032 9033 /* 9034 * XXX KDM need a lock here. 9035 */ 9036 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9037 if ((lun->res_type == SPR_TYPE_EX_AC 9038 && residx != lun->pr_res_idx) 9039 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9040 || lun->res_type == SPR_TYPE_EX_AC_AR) 9041 && !lun->per_res[residx].registered)) { 9042 ctl_set_reservation_conflict(ctsio); 9043 ctl_done((union ctl_io *)ctsio); 9044 return (CTL_RETVAL_COMPLETE); 9045 } 9046 } 9047 9048 switch (ctsio->cdb[0]) { 9049 case READ_6: 9050 case WRITE_6: { 9051 struct scsi_rw_6 *cdb; 9052 9053 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9054 9055 lba = scsi_3btoul(cdb->addr); 9056 /* only 5 bits are valid in the most significant address byte */ 9057 lba &= 0x1fffff; 9058 num_blocks = cdb->length; 9059 /* 9060 * This is correct according to SBC-2. 9061 */ 9062 if (num_blocks == 0) 9063 num_blocks = 256; 9064 break; 9065 } 9066 case READ_10: 9067 case WRITE_10: { 9068 struct scsi_rw_10 *cdb; 9069 9070 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9071 if (cdb->byte2 & SRW10_FUA) 9072 flags |= CTL_LLF_FUA; 9073 if (cdb->byte2 & SRW10_DPO) 9074 flags |= CTL_LLF_DPO; 9075 lba = scsi_4btoul(cdb->addr); 9076 num_blocks = scsi_2btoul(cdb->length); 9077 break; 9078 } 9079 case WRITE_VERIFY_10: { 9080 struct scsi_write_verify_10 *cdb; 9081 9082 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9083 flags |= CTL_LLF_FUA; 9084 if (cdb->byte2 & SWV_DPO) 9085 flags |= CTL_LLF_DPO; 9086 lba = scsi_4btoul(cdb->addr); 9087 num_blocks = scsi_2btoul(cdb->length); 9088 break; 9089 } 9090 case READ_12: 9091 case WRITE_12: { 9092 struct scsi_rw_12 *cdb; 9093 9094 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9095 if (cdb->byte2 & SRW12_FUA) 9096 flags |= CTL_LLF_FUA; 9097 if (cdb->byte2 & SRW12_DPO) 9098 flags |= CTL_LLF_DPO; 9099 lba = scsi_4btoul(cdb->addr); 9100 num_blocks = scsi_4btoul(cdb->length); 9101 break; 9102 } 9103 case WRITE_VERIFY_12: { 9104 struct scsi_write_verify_12 *cdb; 9105 9106 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9107 flags |= CTL_LLF_FUA; 9108 if (cdb->byte2 & SWV_DPO) 9109 flags |= CTL_LLF_DPO; 9110 lba = scsi_4btoul(cdb->addr); 9111 num_blocks = scsi_4btoul(cdb->length); 9112 break; 9113 } 9114 case READ_16: 9115 case WRITE_16: { 9116 struct scsi_rw_16 *cdb; 9117 9118 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9119 if (cdb->byte2 & SRW12_FUA) 9120 flags |= CTL_LLF_FUA; 9121 if (cdb->byte2 & SRW12_DPO) 9122 flags |= CTL_LLF_DPO; 9123 lba = scsi_8btou64(cdb->addr); 9124 num_blocks = scsi_4btoul(cdb->length); 9125 break; 9126 } 9127 case WRITE_VERIFY_16: { 9128 struct scsi_write_verify_16 *cdb; 9129 9130 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9131 flags |= CTL_LLF_FUA; 9132 if (cdb->byte2 & SWV_DPO) 9133 flags |= CTL_LLF_DPO; 9134 lba = scsi_8btou64(cdb->addr); 9135 num_blocks = scsi_4btoul(cdb->length); 9136 break; 9137 } 9138 default: 9139 /* 9140 * We got a command we don't support. This shouldn't 9141 * happen, commands should be filtered out above us. 9142 */ 9143 ctl_set_invalid_opcode(ctsio); 9144 ctl_done((union ctl_io *)ctsio); 9145 9146 return (CTL_RETVAL_COMPLETE); 9147 break; /* NOTREACHED */ 9148 } 9149 9150 /* 9151 * The first check is to make sure we're in bounds, the second 9152 * check is to catch wrap-around problems. If the lba + num blocks 9153 * is less than the lba, then we've wrapped around and the block 9154 * range is invalid anyway. 9155 */ 9156 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9157 || ((lba + num_blocks) < lba)) { 9158 ctl_set_lba_out_of_range(ctsio); 9159 ctl_done((union ctl_io *)ctsio); 9160 return (CTL_RETVAL_COMPLETE); 9161 } 9162 9163 /* 9164 * According to SBC-3, a transfer length of 0 is not an error. 9165 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9166 * translates to 256 blocks for those commands. 9167 */ 9168 if (num_blocks == 0) { 9169 ctl_set_success(ctsio); 9170 ctl_done((union ctl_io *)ctsio); 9171 return (CTL_RETVAL_COMPLETE); 9172 } 9173 9174 /* Set FUA and/or DPO if caches are disabled. */ 9175 if (isread) { 9176 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9177 SCP_RCD) != 0) 9178 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9179 } else { 9180 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9181 SCP_WCE) == 0) 9182 flags |= CTL_LLF_FUA; 9183 } 9184 9185 lbalen = (struct ctl_lba_len_flags *) 9186 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9187 lbalen->lba = lba; 9188 lbalen->len = num_blocks; 9189 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9190 9191 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9192 ctsio->kern_rel_offset = 0; 9193 9194 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9195 9196 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9197 9198 return (retval); 9199} 9200 9201static int 9202ctl_cnw_cont(union ctl_io *io) 9203{ 9204 struct ctl_scsiio *ctsio; 9205 struct ctl_lun *lun; 9206 struct ctl_lba_len_flags *lbalen; 9207 int retval; 9208 9209 ctsio = &io->scsiio; 9210 ctsio->io_hdr.status = CTL_STATUS_NONE; 9211 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9212 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9213 lbalen = (struct ctl_lba_len_flags *) 9214 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9215 lbalen->flags &= ~CTL_LLF_COMPARE; 9216 lbalen->flags |= CTL_LLF_WRITE; 9217 9218 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9219 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9220 return (retval); 9221} 9222 9223int 9224ctl_cnw(struct ctl_scsiio *ctsio) 9225{ 9226 struct ctl_lun *lun; 9227 struct ctl_lba_len_flags *lbalen; 9228 uint64_t lba; 9229 uint32_t num_blocks; 9230 int flags, retval; 9231 9232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9233 9234 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9235 9236 flags = 0; 9237 retval = CTL_RETVAL_COMPLETE; 9238 9239 switch (ctsio->cdb[0]) { 9240 case COMPARE_AND_WRITE: { 9241 struct scsi_compare_and_write *cdb; 9242 9243 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9244 if (cdb->byte2 & SRW10_FUA) 9245 flags |= CTL_LLF_FUA; 9246 if (cdb->byte2 & SRW10_DPO) 9247 flags |= CTL_LLF_DPO; 9248 lba = scsi_8btou64(cdb->addr); 9249 num_blocks = cdb->length; 9250 break; 9251 } 9252 default: 9253 /* 9254 * We got a command we don't support. This shouldn't 9255 * happen, commands should be filtered out above us. 9256 */ 9257 ctl_set_invalid_opcode(ctsio); 9258 ctl_done((union ctl_io *)ctsio); 9259 9260 return (CTL_RETVAL_COMPLETE); 9261 break; /* NOTREACHED */ 9262 } 9263 9264 /* 9265 * The first check is to make sure we're in bounds, the second 9266 * check is to catch wrap-around problems. If the lba + num blocks 9267 * is less than the lba, then we've wrapped around and the block 9268 * range is invalid anyway. 9269 */ 9270 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9271 || ((lba + num_blocks) < lba)) { 9272 ctl_set_lba_out_of_range(ctsio); 9273 ctl_done((union ctl_io *)ctsio); 9274 return (CTL_RETVAL_COMPLETE); 9275 } 9276 9277 /* 9278 * According to SBC-3, a transfer length of 0 is not an error. 9279 */ 9280 if (num_blocks == 0) { 9281 ctl_set_success(ctsio); 9282 ctl_done((union ctl_io *)ctsio); 9283 return (CTL_RETVAL_COMPLETE); 9284 } 9285 9286 /* Set FUA if write cache is disabled. */ 9287 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9288 SCP_WCE) == 0) 9289 flags |= CTL_LLF_FUA; 9290 9291 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9292 ctsio->kern_rel_offset = 0; 9293 9294 /* 9295 * Set the IO_CONT flag, so that if this I/O gets passed to 9296 * ctl_data_submit_done(), it'll get passed back to 9297 * ctl_ctl_cnw_cont() for further processing. 9298 */ 9299 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9300 ctsio->io_cont = ctl_cnw_cont; 9301 9302 lbalen = (struct ctl_lba_len_flags *) 9303 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9304 lbalen->lba = lba; 9305 lbalen->len = num_blocks; 9306 lbalen->flags = CTL_LLF_COMPARE | flags; 9307 9308 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9309 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9310 return (retval); 9311} 9312 9313int 9314ctl_verify(struct ctl_scsiio *ctsio) 9315{ 9316 struct ctl_lun *lun; 9317 struct ctl_lba_len_flags *lbalen; 9318 uint64_t lba; 9319 uint32_t num_blocks; 9320 int bytchk, flags; 9321 int retval; 9322 9323 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9324 9325 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9326 9327 bytchk = 0; 9328 flags = CTL_LLF_FUA; 9329 retval = CTL_RETVAL_COMPLETE; 9330 9331 switch (ctsio->cdb[0]) { 9332 case VERIFY_10: { 9333 struct scsi_verify_10 *cdb; 9334 9335 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9336 if (cdb->byte2 & SVFY_BYTCHK) 9337 bytchk = 1; 9338 if (cdb->byte2 & SVFY_DPO) 9339 flags |= CTL_LLF_DPO; 9340 lba = scsi_4btoul(cdb->addr); 9341 num_blocks = scsi_2btoul(cdb->length); 9342 break; 9343 } 9344 case VERIFY_12: { 9345 struct scsi_verify_12 *cdb; 9346 9347 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9348 if (cdb->byte2 & SVFY_BYTCHK) 9349 bytchk = 1; 9350 if (cdb->byte2 & SVFY_DPO) 9351 flags |= CTL_LLF_DPO; 9352 lba = scsi_4btoul(cdb->addr); 9353 num_blocks = scsi_4btoul(cdb->length); 9354 break; 9355 } 9356 case VERIFY_16: { 9357 struct scsi_rw_16 *cdb; 9358 9359 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9360 if (cdb->byte2 & SVFY_BYTCHK) 9361 bytchk = 1; 9362 if (cdb->byte2 & SVFY_DPO) 9363 flags |= CTL_LLF_DPO; 9364 lba = scsi_8btou64(cdb->addr); 9365 num_blocks = scsi_4btoul(cdb->length); 9366 break; 9367 } 9368 default: 9369 /* 9370 * We got a command we don't support. This shouldn't 9371 * happen, commands should be filtered out above us. 9372 */ 9373 ctl_set_invalid_opcode(ctsio); 9374 ctl_done((union ctl_io *)ctsio); 9375 return (CTL_RETVAL_COMPLETE); 9376 } 9377 9378 /* 9379 * The first check is to make sure we're in bounds, the second 9380 * check is to catch wrap-around problems. If the lba + num blocks 9381 * is less than the lba, then we've wrapped around and the block 9382 * range is invalid anyway. 9383 */ 9384 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9385 || ((lba + num_blocks) < lba)) { 9386 ctl_set_lba_out_of_range(ctsio); 9387 ctl_done((union ctl_io *)ctsio); 9388 return (CTL_RETVAL_COMPLETE); 9389 } 9390 9391 /* 9392 * According to SBC-3, a transfer length of 0 is not an error. 9393 */ 9394 if (num_blocks == 0) { 9395 ctl_set_success(ctsio); 9396 ctl_done((union ctl_io *)ctsio); 9397 return (CTL_RETVAL_COMPLETE); 9398 } 9399 9400 lbalen = (struct ctl_lba_len_flags *) 9401 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9402 lbalen->lba = lba; 9403 lbalen->len = num_blocks; 9404 if (bytchk) { 9405 lbalen->flags = CTL_LLF_COMPARE | flags; 9406 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9407 } else { 9408 lbalen->flags = CTL_LLF_VERIFY | flags; 9409 ctsio->kern_total_len = 0; 9410 } 9411 ctsio->kern_rel_offset = 0; 9412 9413 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9414 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9415 return (retval); 9416} 9417 9418int 9419ctl_report_luns(struct ctl_scsiio *ctsio) 9420{ 9421 struct scsi_report_luns *cdb; 9422 struct scsi_report_luns_data *lun_data; 9423 struct ctl_lun *lun, *request_lun; 9424 int num_luns, retval; 9425 uint32_t alloc_len, lun_datalen; 9426 int num_filled, well_known; 9427 uint32_t initidx, targ_lun_id, lun_id; 9428 9429 retval = CTL_RETVAL_COMPLETE; 9430 well_known = 0; 9431 9432 cdb = (struct scsi_report_luns *)ctsio->cdb; 9433 9434 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9435 9436 mtx_lock(&control_softc->ctl_lock); 9437 num_luns = control_softc->num_luns; 9438 mtx_unlock(&control_softc->ctl_lock); 9439 9440 switch (cdb->select_report) { 9441 case RPL_REPORT_DEFAULT: 9442 case RPL_REPORT_ALL: 9443 break; 9444 case RPL_REPORT_WELLKNOWN: 9445 well_known = 1; 9446 num_luns = 0; 9447 break; 9448 default: 9449 ctl_set_invalid_field(ctsio, 9450 /*sks_valid*/ 1, 9451 /*command*/ 1, 9452 /*field*/ 2, 9453 /*bit_valid*/ 0, 9454 /*bit*/ 0); 9455 ctl_done((union ctl_io *)ctsio); 9456 return (retval); 9457 break; /* NOTREACHED */ 9458 } 9459 9460 alloc_len = scsi_4btoul(cdb->length); 9461 /* 9462 * The initiator has to allocate at least 16 bytes for this request, 9463 * so he can at least get the header and the first LUN. Otherwise 9464 * we reject the request (per SPC-3 rev 14, section 6.21). 9465 */ 9466 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9467 sizeof(struct scsi_report_luns_lundata))) { 9468 ctl_set_invalid_field(ctsio, 9469 /*sks_valid*/ 1, 9470 /*command*/ 1, 9471 /*field*/ 6, 9472 /*bit_valid*/ 0, 9473 /*bit*/ 0); 9474 ctl_done((union ctl_io *)ctsio); 9475 return (retval); 9476 } 9477 9478 request_lun = (struct ctl_lun *) 9479 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9480 9481 lun_datalen = sizeof(*lun_data) + 9482 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9483 9484 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9485 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9486 ctsio->kern_sg_entries = 0; 9487 9488 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9489 9490 mtx_lock(&control_softc->ctl_lock); 9491 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9492 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9493 if (lun_id >= CTL_MAX_LUNS) 9494 continue; 9495 lun = control_softc->ctl_luns[lun_id]; 9496 if (lun == NULL) 9497 continue; 9498 9499 if (targ_lun_id <= 0xff) { 9500 /* 9501 * Peripheral addressing method, bus number 0. 9502 */ 9503 lun_data->luns[num_filled].lundata[0] = 9504 RPL_LUNDATA_ATYP_PERIPH; 9505 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9506 num_filled++; 9507 } else if (targ_lun_id <= 0x3fff) { 9508 /* 9509 * Flat addressing method. 9510 */ 9511 lun_data->luns[num_filled].lundata[0] = 9512 RPL_LUNDATA_ATYP_FLAT | 9513 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9514#ifdef OLDCTLHEADERS 9515 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9516 (targ_lun_id & SRLD_BUS_LUN_MASK); 9517#endif 9518 lun_data->luns[num_filled].lundata[1] = 9519#ifdef OLDCTLHEADERS 9520 targ_lun_id >> SRLD_BUS_LUN_BITS; 9521#endif 9522 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9523 num_filled++; 9524 } else { 9525 printf("ctl_report_luns: bogus LUN number %jd, " 9526 "skipping\n", (intmax_t)targ_lun_id); 9527 } 9528 /* 9529 * According to SPC-3, rev 14 section 6.21: 9530 * 9531 * "The execution of a REPORT LUNS command to any valid and 9532 * installed logical unit shall clear the REPORTED LUNS DATA 9533 * HAS CHANGED unit attention condition for all logical 9534 * units of that target with respect to the requesting 9535 * initiator. A valid and installed logical unit is one 9536 * having a PERIPHERAL QUALIFIER of 000b in the standard 9537 * INQUIRY data (see 6.4.2)." 9538 * 9539 * If request_lun is NULL, the LUN this report luns command 9540 * was issued to is either disabled or doesn't exist. In that 9541 * case, we shouldn't clear any pending lun change unit 9542 * attention. 9543 */ 9544 if (request_lun != NULL) { 9545 mtx_lock(&lun->lun_lock); 9546 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9547 mtx_unlock(&lun->lun_lock); 9548 } 9549 } 9550 mtx_unlock(&control_softc->ctl_lock); 9551 9552 /* 9553 * It's quite possible that we've returned fewer LUNs than we allocated 9554 * space for. Trim it. 9555 */ 9556 lun_datalen = sizeof(*lun_data) + 9557 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9558 9559 if (lun_datalen < alloc_len) { 9560 ctsio->residual = alloc_len - lun_datalen; 9561 ctsio->kern_data_len = lun_datalen; 9562 ctsio->kern_total_len = lun_datalen; 9563 } else { 9564 ctsio->residual = 0; 9565 ctsio->kern_data_len = alloc_len; 9566 ctsio->kern_total_len = alloc_len; 9567 } 9568 ctsio->kern_data_resid = 0; 9569 ctsio->kern_rel_offset = 0; 9570 ctsio->kern_sg_entries = 0; 9571 9572 /* 9573 * We set this to the actual data length, regardless of how much 9574 * space we actually have to return results. If the user looks at 9575 * this value, he'll know whether or not he allocated enough space 9576 * and reissue the command if necessary. We don't support well 9577 * known logical units, so if the user asks for that, return none. 9578 */ 9579 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9580 9581 /* 9582 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9583 * this request. 9584 */ 9585 ctsio->scsi_status = SCSI_STATUS_OK; 9586 9587 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9588 ctsio->be_move_done = ctl_config_move_done; 9589 ctl_datamove((union ctl_io *)ctsio); 9590 9591 return (retval); 9592} 9593 9594int 9595ctl_request_sense(struct ctl_scsiio *ctsio) 9596{ 9597 struct scsi_request_sense *cdb; 9598 struct scsi_sense_data *sense_ptr; 9599 struct ctl_lun *lun; 9600 uint32_t initidx; 9601 int have_error; 9602 scsi_sense_data_type sense_format; 9603 9604 cdb = (struct scsi_request_sense *)ctsio->cdb; 9605 9606 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9607 9608 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9609 9610 /* 9611 * Determine which sense format the user wants. 9612 */ 9613 if (cdb->byte2 & SRS_DESC) 9614 sense_format = SSD_TYPE_DESC; 9615 else 9616 sense_format = SSD_TYPE_FIXED; 9617 9618 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9619 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9620 ctsio->kern_sg_entries = 0; 9621 9622 /* 9623 * struct scsi_sense_data, which is currently set to 256 bytes, is 9624 * larger than the largest allowed value for the length field in the 9625 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9626 */ 9627 ctsio->residual = 0; 9628 ctsio->kern_data_len = cdb->length; 9629 ctsio->kern_total_len = cdb->length; 9630 9631 ctsio->kern_data_resid = 0; 9632 ctsio->kern_rel_offset = 0; 9633 ctsio->kern_sg_entries = 0; 9634 9635 /* 9636 * If we don't have a LUN, we don't have any pending sense. 9637 */ 9638 if (lun == NULL) 9639 goto no_sense; 9640 9641 have_error = 0; 9642 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9643 /* 9644 * Check for pending sense, and then for pending unit attentions. 9645 * Pending sense gets returned first, then pending unit attentions. 9646 */ 9647 mtx_lock(&lun->lun_lock); 9648#ifdef CTL_WITH_CA 9649 if (ctl_is_set(lun->have_ca, initidx)) { 9650 scsi_sense_data_type stored_format; 9651 9652 /* 9653 * Check to see which sense format was used for the stored 9654 * sense data. 9655 */ 9656 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9657 9658 /* 9659 * If the user requested a different sense format than the 9660 * one we stored, then we need to convert it to the other 9661 * format. If we're going from descriptor to fixed format 9662 * sense data, we may lose things in translation, depending 9663 * on what options were used. 9664 * 9665 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9666 * for some reason we'll just copy it out as-is. 9667 */ 9668 if ((stored_format == SSD_TYPE_FIXED) 9669 && (sense_format == SSD_TYPE_DESC)) 9670 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9671 &lun->pending_sense[initidx], 9672 (struct scsi_sense_data_desc *)sense_ptr); 9673 else if ((stored_format == SSD_TYPE_DESC) 9674 && (sense_format == SSD_TYPE_FIXED)) 9675 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9676 &lun->pending_sense[initidx], 9677 (struct scsi_sense_data_fixed *)sense_ptr); 9678 else 9679 memcpy(sense_ptr, &lun->pending_sense[initidx], 9680 ctl_min(sizeof(*sense_ptr), 9681 sizeof(lun->pending_sense[initidx]))); 9682 9683 ctl_clear_mask(lun->have_ca, initidx); 9684 have_error = 1; 9685 } else 9686#endif 9687 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9688 ctl_ua_type ua_type; 9689 9690 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9691 sense_ptr, sense_format); 9692 if (ua_type != CTL_UA_NONE) { 9693 have_error = 1; 9694 /* We're reporting this UA, so clear it */ 9695 lun->pending_ua[initidx] &= ~ua_type; 9696 } 9697 } 9698 mtx_unlock(&lun->lun_lock); 9699 9700 /* 9701 * We already have a pending error, return it. 9702 */ 9703 if (have_error != 0) { 9704 /* 9705 * We report the SCSI status as OK, since the status of the 9706 * request sense command itself is OK. 9707 */ 9708 ctsio->scsi_status = SCSI_STATUS_OK; 9709 9710 /* 9711 * We report 0 for the sense length, because we aren't doing 9712 * autosense in this case. We're reporting sense as 9713 * parameter data. 9714 */ 9715 ctsio->sense_len = 0; 9716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9717 ctsio->be_move_done = ctl_config_move_done; 9718 ctl_datamove((union ctl_io *)ctsio); 9719 9720 return (CTL_RETVAL_COMPLETE); 9721 } 9722 9723no_sense: 9724 9725 /* 9726 * No sense information to report, so we report that everything is 9727 * okay. 9728 */ 9729 ctl_set_sense_data(sense_ptr, 9730 lun, 9731 sense_format, 9732 /*current_error*/ 1, 9733 /*sense_key*/ SSD_KEY_NO_SENSE, 9734 /*asc*/ 0x00, 9735 /*ascq*/ 0x00, 9736 SSD_ELEM_NONE); 9737 9738 ctsio->scsi_status = SCSI_STATUS_OK; 9739 9740 /* 9741 * We report 0 for the sense length, because we aren't doing 9742 * autosense in this case. We're reporting sense as parameter data. 9743 */ 9744 ctsio->sense_len = 0; 9745 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9746 ctsio->be_move_done = ctl_config_move_done; 9747 ctl_datamove((union ctl_io *)ctsio); 9748 9749 return (CTL_RETVAL_COMPLETE); 9750} 9751 9752int 9753ctl_tur(struct ctl_scsiio *ctsio) 9754{ 9755 struct ctl_lun *lun; 9756 9757 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9758 9759 CTL_DEBUG_PRINT(("ctl_tur\n")); 9760 9761 if (lun == NULL) 9762 return (EINVAL); 9763 9764 ctsio->scsi_status = SCSI_STATUS_OK; 9765 ctsio->io_hdr.status = CTL_SUCCESS; 9766 9767 ctl_done((union ctl_io *)ctsio); 9768 9769 return (CTL_RETVAL_COMPLETE); 9770} 9771 9772#ifdef notyet 9773static int 9774ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9775{ 9776 9777} 9778#endif 9779 9780static int 9781ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9782{ 9783 struct scsi_vpd_supported_pages *pages; 9784 int sup_page_size; 9785 struct ctl_lun *lun; 9786 9787 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9788 9789 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9790 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9791 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9792 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9793 ctsio->kern_sg_entries = 0; 9794 9795 if (sup_page_size < alloc_len) { 9796 ctsio->residual = alloc_len - sup_page_size; 9797 ctsio->kern_data_len = sup_page_size; 9798 ctsio->kern_total_len = sup_page_size; 9799 } else { 9800 ctsio->residual = 0; 9801 ctsio->kern_data_len = alloc_len; 9802 ctsio->kern_total_len = alloc_len; 9803 } 9804 ctsio->kern_data_resid = 0; 9805 ctsio->kern_rel_offset = 0; 9806 ctsio->kern_sg_entries = 0; 9807 9808 /* 9809 * The control device is always connected. The disk device, on the 9810 * other hand, may not be online all the time. Need to change this 9811 * to figure out whether the disk device is actually online or not. 9812 */ 9813 if (lun != NULL) 9814 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9815 lun->be_lun->lun_type; 9816 else 9817 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9818 9819 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9820 /* Supported VPD pages */ 9821 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9822 /* Serial Number */ 9823 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9824 /* Device Identification */ 9825 pages->page_list[2] = SVPD_DEVICE_ID; 9826 /* Extended INQUIRY Data */ 9827 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9828 /* Mode Page Policy */ 9829 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9830 /* SCSI Ports */ 9831 pages->page_list[5] = SVPD_SCSI_PORTS; 9832 /* Third-party Copy */ 9833 pages->page_list[6] = SVPD_SCSI_TPC; 9834 /* Block limits */ 9835 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9836 /* Block Device Characteristics */ 9837 pages->page_list[8] = SVPD_BDC; 9838 /* Logical Block Provisioning */ 9839 pages->page_list[9] = SVPD_LBP; 9840 9841 ctsio->scsi_status = SCSI_STATUS_OK; 9842 9843 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9844 ctsio->be_move_done = ctl_config_move_done; 9845 ctl_datamove((union ctl_io *)ctsio); 9846 9847 return (CTL_RETVAL_COMPLETE); 9848} 9849 9850static int 9851ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9852{ 9853 struct scsi_vpd_unit_serial_number *sn_ptr; 9854 struct ctl_lun *lun; 9855 9856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9857 9858 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9859 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9860 ctsio->kern_sg_entries = 0; 9861 9862 if (sizeof(*sn_ptr) < alloc_len) { 9863 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9864 ctsio->kern_data_len = sizeof(*sn_ptr); 9865 ctsio->kern_total_len = sizeof(*sn_ptr); 9866 } else { 9867 ctsio->residual = 0; 9868 ctsio->kern_data_len = alloc_len; 9869 ctsio->kern_total_len = alloc_len; 9870 } 9871 ctsio->kern_data_resid = 0; 9872 ctsio->kern_rel_offset = 0; 9873 ctsio->kern_sg_entries = 0; 9874 9875 /* 9876 * The control device is always connected. The disk device, on the 9877 * other hand, may not be online all the time. Need to change this 9878 * to figure out whether the disk device is actually online or not. 9879 */ 9880 if (lun != NULL) 9881 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9882 lun->be_lun->lun_type; 9883 else 9884 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9885 9886 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9887 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9888 /* 9889 * If we don't have a LUN, we just leave the serial number as 9890 * all spaces. 9891 */ 9892 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9893 if (lun != NULL) { 9894 strncpy((char *)sn_ptr->serial_num, 9895 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9896 } 9897 ctsio->scsi_status = SCSI_STATUS_OK; 9898 9899 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9900 ctsio->be_move_done = ctl_config_move_done; 9901 ctl_datamove((union ctl_io *)ctsio); 9902 9903 return (CTL_RETVAL_COMPLETE); 9904} 9905 9906 9907static int 9908ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9909{ 9910 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9911 struct ctl_lun *lun; 9912 int data_len; 9913 9914 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9915 9916 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9917 sizeof(struct scsi_vpd_mode_page_policy_descr); 9918 9919 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9920 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9921 ctsio->kern_sg_entries = 0; 9922 9923 if (data_len < alloc_len) { 9924 ctsio->residual = alloc_len - data_len; 9925 ctsio->kern_data_len = data_len; 9926 ctsio->kern_total_len = data_len; 9927 } else { 9928 ctsio->residual = 0; 9929 ctsio->kern_data_len = alloc_len; 9930 ctsio->kern_total_len = alloc_len; 9931 } 9932 ctsio->kern_data_resid = 0; 9933 ctsio->kern_rel_offset = 0; 9934 ctsio->kern_sg_entries = 0; 9935 9936 /* 9937 * The control device is always connected. The disk device, on the 9938 * other hand, may not be online all the time. 9939 */ 9940 if (lun != NULL) 9941 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9942 lun->be_lun->lun_type; 9943 else 9944 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9945 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9946 eid_ptr->page_length = data_len - 4; 9947 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9948 eid_ptr->flags3 = SVPD_EID_V_SUP; 9949 9950 ctsio->scsi_status = SCSI_STATUS_OK; 9951 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9952 ctsio->be_move_done = ctl_config_move_done; 9953 ctl_datamove((union ctl_io *)ctsio); 9954 9955 return (CTL_RETVAL_COMPLETE); 9956} 9957 9958static int 9959ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9960{ 9961 struct scsi_vpd_mode_page_policy *mpp_ptr; 9962 struct ctl_lun *lun; 9963 int data_len; 9964 9965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9966 9967 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9968 sizeof(struct scsi_vpd_mode_page_policy_descr); 9969 9970 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9971 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9972 ctsio->kern_sg_entries = 0; 9973 9974 if (data_len < alloc_len) { 9975 ctsio->residual = alloc_len - data_len; 9976 ctsio->kern_data_len = data_len; 9977 ctsio->kern_total_len = data_len; 9978 } else { 9979 ctsio->residual = 0; 9980 ctsio->kern_data_len = alloc_len; 9981 ctsio->kern_total_len = alloc_len; 9982 } 9983 ctsio->kern_data_resid = 0; 9984 ctsio->kern_rel_offset = 0; 9985 ctsio->kern_sg_entries = 0; 9986 9987 /* 9988 * The control device is always connected. The disk device, on the 9989 * other hand, may not be online all the time. 9990 */ 9991 if (lun != NULL) 9992 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9993 lun->be_lun->lun_type; 9994 else 9995 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9996 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9997 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9998 mpp_ptr->descr[0].page_code = 0x3f; 9999 mpp_ptr->descr[0].subpage_code = 0xff; 10000 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10001 10002 ctsio->scsi_status = SCSI_STATUS_OK; 10003 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10004 ctsio->be_move_done = ctl_config_move_done; 10005 ctl_datamove((union ctl_io *)ctsio); 10006 10007 return (CTL_RETVAL_COMPLETE); 10008} 10009 10010static int 10011ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10012{ 10013 struct scsi_vpd_device_id *devid_ptr; 10014 struct scsi_vpd_id_descriptor *desc; 10015 struct ctl_softc *ctl_softc; 10016 struct ctl_lun *lun; 10017 struct ctl_port *port; 10018 int data_len; 10019 uint8_t proto; 10020 10021 ctl_softc = control_softc; 10022 10023 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10024 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10025 10026 data_len = sizeof(struct scsi_vpd_device_id) + 10027 sizeof(struct scsi_vpd_id_descriptor) + 10028 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10029 sizeof(struct scsi_vpd_id_descriptor) + 10030 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10031 if (lun && lun->lun_devid) 10032 data_len += lun->lun_devid->len; 10033 if (port->port_devid) 10034 data_len += port->port_devid->len; 10035 if (port->target_devid) 10036 data_len += port->target_devid->len; 10037 10038 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10039 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10040 ctsio->kern_sg_entries = 0; 10041 10042 if (data_len < alloc_len) { 10043 ctsio->residual = alloc_len - data_len; 10044 ctsio->kern_data_len = data_len; 10045 ctsio->kern_total_len = data_len; 10046 } else { 10047 ctsio->residual = 0; 10048 ctsio->kern_data_len = alloc_len; 10049 ctsio->kern_total_len = alloc_len; 10050 } 10051 ctsio->kern_data_resid = 0; 10052 ctsio->kern_rel_offset = 0; 10053 ctsio->kern_sg_entries = 0; 10054 10055 /* 10056 * The control device is always connected. The disk device, on the 10057 * other hand, may not be online all the time. 10058 */ 10059 if (lun != NULL) 10060 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10061 lun->be_lun->lun_type; 10062 else 10063 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10064 devid_ptr->page_code = SVPD_DEVICE_ID; 10065 scsi_ulto2b(data_len - 4, devid_ptr->length); 10066 10067 if (port->port_type == CTL_PORT_FC) 10068 proto = SCSI_PROTO_FC << 4; 10069 else if (port->port_type == CTL_PORT_ISCSI) 10070 proto = SCSI_PROTO_ISCSI << 4; 10071 else 10072 proto = SCSI_PROTO_SPI << 4; 10073 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10074 10075 /* 10076 * We're using a LUN association here. i.e., this device ID is a 10077 * per-LUN identifier. 10078 */ 10079 if (lun && lun->lun_devid) { 10080 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10081 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10082 lun->lun_devid->len); 10083 } 10084 10085 /* 10086 * This is for the WWPN which is a port association. 10087 */ 10088 if (port->port_devid) { 10089 memcpy(desc, port->port_devid->data, port->port_devid->len); 10090 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10091 port->port_devid->len); 10092 } 10093 10094 /* 10095 * This is for the Relative Target Port(type 4h) identifier 10096 */ 10097 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10098 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10099 SVPD_ID_TYPE_RELTARG; 10100 desc->length = 4; 10101 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10102 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10103 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10104 10105 /* 10106 * This is for the Target Port Group(type 5h) identifier 10107 */ 10108 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10109 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10110 SVPD_ID_TYPE_TPORTGRP; 10111 desc->length = 4; 10112 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10113 &desc->identifier[2]); 10114 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10115 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10116 10117 /* 10118 * This is for the Target identifier 10119 */ 10120 if (port->target_devid) { 10121 memcpy(desc, port->target_devid->data, port->target_devid->len); 10122 } 10123 10124 ctsio->scsi_status = SCSI_STATUS_OK; 10125 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10126 ctsio->be_move_done = ctl_config_move_done; 10127 ctl_datamove((union ctl_io *)ctsio); 10128 10129 return (CTL_RETVAL_COMPLETE); 10130} 10131 10132static int 10133ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10134{ 10135 struct ctl_softc *softc = control_softc; 10136 struct scsi_vpd_scsi_ports *sp; 10137 struct scsi_vpd_port_designation *pd; 10138 struct scsi_vpd_port_designation_cont *pdc; 10139 struct ctl_lun *lun; 10140 struct ctl_port *port; 10141 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10142 int num_target_port_groups, single; 10143 10144 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10145 10146 single = ctl_is_single; 10147 if (single) 10148 num_target_port_groups = 1; 10149 else 10150 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10151 num_target_ports = 0; 10152 iid_len = 0; 10153 id_len = 0; 10154 mtx_lock(&softc->ctl_lock); 10155 STAILQ_FOREACH(port, &softc->port_list, links) { 10156 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10157 continue; 10158 if (lun != NULL && 10159 ctl_map_lun_back(port->targ_port, lun->lun) >= 10160 CTL_MAX_LUNS) 10161 continue; 10162 num_target_ports++; 10163 if (port->init_devid) 10164 iid_len += port->init_devid->len; 10165 if (port->port_devid) 10166 id_len += port->port_devid->len; 10167 } 10168 mtx_unlock(&softc->ctl_lock); 10169 10170 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10171 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10172 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10173 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10174 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10175 ctsio->kern_sg_entries = 0; 10176 10177 if (data_len < alloc_len) { 10178 ctsio->residual = alloc_len - data_len; 10179 ctsio->kern_data_len = data_len; 10180 ctsio->kern_total_len = data_len; 10181 } else { 10182 ctsio->residual = 0; 10183 ctsio->kern_data_len = alloc_len; 10184 ctsio->kern_total_len = alloc_len; 10185 } 10186 ctsio->kern_data_resid = 0; 10187 ctsio->kern_rel_offset = 0; 10188 ctsio->kern_sg_entries = 0; 10189 10190 /* 10191 * The control device is always connected. The disk device, on the 10192 * other hand, may not be online all the time. Need to change this 10193 * to figure out whether the disk device is actually online or not. 10194 */ 10195 if (lun != NULL) 10196 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10197 lun->be_lun->lun_type; 10198 else 10199 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10200 10201 sp->page_code = SVPD_SCSI_PORTS; 10202 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10203 sp->page_length); 10204 pd = &sp->design[0]; 10205 10206 mtx_lock(&softc->ctl_lock); 10207 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10208 pg = 0; 10209 else 10210 pg = 1; 10211 for (g = 0; g < num_target_port_groups; g++) { 10212 STAILQ_FOREACH(port, &softc->port_list, links) { 10213 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10214 continue; 10215 if (lun != NULL && 10216 ctl_map_lun_back(port->targ_port, lun->lun) >= 10217 CTL_MAX_LUNS) 10218 continue; 10219 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10220 scsi_ulto2b(p, pd->relative_port_id); 10221 if (port->init_devid && g == pg) { 10222 iid_len = port->init_devid->len; 10223 memcpy(pd->initiator_transportid, 10224 port->init_devid->data, port->init_devid->len); 10225 } else 10226 iid_len = 0; 10227 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10228 pdc = (struct scsi_vpd_port_designation_cont *) 10229 (&pd->initiator_transportid[iid_len]); 10230 if (port->port_devid && g == pg) { 10231 id_len = port->port_devid->len; 10232 memcpy(pdc->target_port_descriptors, 10233 port->port_devid->data, port->port_devid->len); 10234 } else 10235 id_len = 0; 10236 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10237 pd = (struct scsi_vpd_port_designation *) 10238 ((uint8_t *)pdc->target_port_descriptors + id_len); 10239 } 10240 } 10241 mtx_unlock(&softc->ctl_lock); 10242 10243 ctsio->scsi_status = SCSI_STATUS_OK; 10244 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10245 ctsio->be_move_done = ctl_config_move_done; 10246 ctl_datamove((union ctl_io *)ctsio); 10247 10248 return (CTL_RETVAL_COMPLETE); 10249} 10250 10251static int 10252ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10253{ 10254 struct scsi_vpd_block_limits *bl_ptr; 10255 struct ctl_lun *lun; 10256 int bs; 10257 10258 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10259 10260 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10261 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10262 ctsio->kern_sg_entries = 0; 10263 10264 if (sizeof(*bl_ptr) < alloc_len) { 10265 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10266 ctsio->kern_data_len = sizeof(*bl_ptr); 10267 ctsio->kern_total_len = sizeof(*bl_ptr); 10268 } else { 10269 ctsio->residual = 0; 10270 ctsio->kern_data_len = alloc_len; 10271 ctsio->kern_total_len = alloc_len; 10272 } 10273 ctsio->kern_data_resid = 0; 10274 ctsio->kern_rel_offset = 0; 10275 ctsio->kern_sg_entries = 0; 10276 10277 /* 10278 * The control device is always connected. The disk device, on the 10279 * other hand, may not be online all the time. Need to change this 10280 * to figure out whether the disk device is actually online or not. 10281 */ 10282 if (lun != NULL) 10283 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10284 lun->be_lun->lun_type; 10285 else 10286 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10287 10288 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10289 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10290 bl_ptr->max_cmp_write_len = 0xff; 10291 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10292 if (lun != NULL) { 10293 bs = lun->be_lun->blocksize; 10294 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10295 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10296 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10297 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10298 if (lun->be_lun->pblockexp != 0) { 10299 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10300 bl_ptr->opt_unmap_grain); 10301 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10302 bl_ptr->unmap_grain_align); 10303 } 10304 } 10305 } 10306 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10307 10308 ctsio->scsi_status = SCSI_STATUS_OK; 10309 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10310 ctsio->be_move_done = ctl_config_move_done; 10311 ctl_datamove((union ctl_io *)ctsio); 10312 10313 return (CTL_RETVAL_COMPLETE); 10314} 10315 10316static int 10317ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10318{ 10319 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10320 struct ctl_lun *lun; 10321 10322 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10323 10324 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10325 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10326 ctsio->kern_sg_entries = 0; 10327 10328 if (sizeof(*bdc_ptr) < alloc_len) { 10329 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10330 ctsio->kern_data_len = sizeof(*bdc_ptr); 10331 ctsio->kern_total_len = sizeof(*bdc_ptr); 10332 } else { 10333 ctsio->residual = 0; 10334 ctsio->kern_data_len = alloc_len; 10335 ctsio->kern_total_len = alloc_len; 10336 } 10337 ctsio->kern_data_resid = 0; 10338 ctsio->kern_rel_offset = 0; 10339 ctsio->kern_sg_entries = 0; 10340 10341 /* 10342 * The control device is always connected. The disk device, on the 10343 * other hand, may not be online all the time. Need to change this 10344 * to figure out whether the disk device is actually online or not. 10345 */ 10346 if (lun != NULL) 10347 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10348 lun->be_lun->lun_type; 10349 else 10350 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10351 bdc_ptr->page_code = SVPD_BDC; 10352 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10353 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10354 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10355 10356 ctsio->scsi_status = SCSI_STATUS_OK; 10357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10358 ctsio->be_move_done = ctl_config_move_done; 10359 ctl_datamove((union ctl_io *)ctsio); 10360 10361 return (CTL_RETVAL_COMPLETE); 10362} 10363 10364static int 10365ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10366{ 10367 struct scsi_vpd_logical_block_prov *lbp_ptr; 10368 struct ctl_lun *lun; 10369 10370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10371 10372 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10373 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10374 ctsio->kern_sg_entries = 0; 10375 10376 if (sizeof(*lbp_ptr) < alloc_len) { 10377 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10378 ctsio->kern_data_len = sizeof(*lbp_ptr); 10379 ctsio->kern_total_len = sizeof(*lbp_ptr); 10380 } else { 10381 ctsio->residual = 0; 10382 ctsio->kern_data_len = alloc_len; 10383 ctsio->kern_total_len = alloc_len; 10384 } 10385 ctsio->kern_data_resid = 0; 10386 ctsio->kern_rel_offset = 0; 10387 ctsio->kern_sg_entries = 0; 10388 10389 /* 10390 * The control device is always connected. The disk device, on the 10391 * other hand, may not be online all the time. Need to change this 10392 * to figure out whether the disk device is actually online or not. 10393 */ 10394 if (lun != NULL) 10395 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10396 lun->be_lun->lun_type; 10397 else 10398 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10399 10400 lbp_ptr->page_code = SVPD_LBP; 10401 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10402 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10403 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10404 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10405 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10406 } 10407 10408 ctsio->scsi_status = SCSI_STATUS_OK; 10409 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10410 ctsio->be_move_done = ctl_config_move_done; 10411 ctl_datamove((union ctl_io *)ctsio); 10412 10413 return (CTL_RETVAL_COMPLETE); 10414} 10415 10416static int 10417ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10418{ 10419 struct scsi_inquiry *cdb; 10420 struct ctl_lun *lun; 10421 int alloc_len, retval; 10422 10423 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10424 cdb = (struct scsi_inquiry *)ctsio->cdb; 10425 10426 retval = CTL_RETVAL_COMPLETE; 10427 10428 alloc_len = scsi_2btoul(cdb->length); 10429 10430 switch (cdb->page_code) { 10431 case SVPD_SUPPORTED_PAGES: 10432 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10433 break; 10434 case SVPD_UNIT_SERIAL_NUMBER: 10435 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10436 break; 10437 case SVPD_DEVICE_ID: 10438 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10439 break; 10440 case SVPD_EXTENDED_INQUIRY_DATA: 10441 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10442 break; 10443 case SVPD_MODE_PAGE_POLICY: 10444 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10445 break; 10446 case SVPD_SCSI_PORTS: 10447 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10448 break; 10449 case SVPD_SCSI_TPC: 10450 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10451 break; 10452 case SVPD_BLOCK_LIMITS: 10453 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10454 break; 10455 case SVPD_BDC: 10456 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10457 break; 10458 case SVPD_LBP: 10459 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10460 break; 10461 default: 10462 ctl_set_invalid_field(ctsio, 10463 /*sks_valid*/ 1, 10464 /*command*/ 1, 10465 /*field*/ 2, 10466 /*bit_valid*/ 0, 10467 /*bit*/ 0); 10468 ctl_done((union ctl_io *)ctsio); 10469 retval = CTL_RETVAL_COMPLETE; 10470 break; 10471 } 10472 10473 return (retval); 10474} 10475 10476static int 10477ctl_inquiry_std(struct ctl_scsiio *ctsio) 10478{ 10479 struct scsi_inquiry_data *inq_ptr; 10480 struct scsi_inquiry *cdb; 10481 struct ctl_softc *ctl_softc; 10482 struct ctl_lun *lun; 10483 char *val; 10484 uint32_t alloc_len; 10485 ctl_port_type port_type; 10486 10487 ctl_softc = control_softc; 10488 10489 /* 10490 * Figure out whether we're talking to a Fibre Channel port or not. 10491 * We treat the ioctl front end, and any SCSI adapters, as packetized 10492 * SCSI front ends. 10493 */ 10494 port_type = ctl_softc->ctl_ports[ 10495 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10496 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10497 port_type = CTL_PORT_SCSI; 10498 10499 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10500 cdb = (struct scsi_inquiry *)ctsio->cdb; 10501 alloc_len = scsi_2btoul(cdb->length); 10502 10503 /* 10504 * We malloc the full inquiry data size here and fill it 10505 * in. If the user only asks for less, we'll give him 10506 * that much. 10507 */ 10508 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10509 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10510 ctsio->kern_sg_entries = 0; 10511 ctsio->kern_data_resid = 0; 10512 ctsio->kern_rel_offset = 0; 10513 10514 if (sizeof(*inq_ptr) < alloc_len) { 10515 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10516 ctsio->kern_data_len = sizeof(*inq_ptr); 10517 ctsio->kern_total_len = sizeof(*inq_ptr); 10518 } else { 10519 ctsio->residual = 0; 10520 ctsio->kern_data_len = alloc_len; 10521 ctsio->kern_total_len = alloc_len; 10522 } 10523 10524 /* 10525 * If we have a LUN configured, report it as connected. Otherwise, 10526 * report that it is offline or no device is supported, depending 10527 * on the value of inquiry_pq_no_lun. 10528 * 10529 * According to the spec (SPC-4 r34), the peripheral qualifier 10530 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10531 * 10532 * "A peripheral device having the specified peripheral device type 10533 * is not connected to this logical unit. However, the device 10534 * server is capable of supporting the specified peripheral device 10535 * type on this logical unit." 10536 * 10537 * According to the same spec, the peripheral qualifier 10538 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10539 * 10540 * "The device server is not capable of supporting a peripheral 10541 * device on this logical unit. For this peripheral qualifier the 10542 * peripheral device type shall be set to 1Fh. All other peripheral 10543 * device type values are reserved for this peripheral qualifier." 10544 * 10545 * Given the text, it would seem that we probably want to report that 10546 * the LUN is offline here. There is no LUN connected, but we can 10547 * support a LUN at the given LUN number. 10548 * 10549 * In the real world, though, it sounds like things are a little 10550 * different: 10551 * 10552 * - Linux, when presented with a LUN with the offline peripheral 10553 * qualifier, will create an sg driver instance for it. So when 10554 * you attach it to CTL, you wind up with a ton of sg driver 10555 * instances. (One for every LUN that Linux bothered to probe.) 10556 * Linux does this despite the fact that it issues a REPORT LUNs 10557 * to LUN 0 to get the inventory of supported LUNs. 10558 * 10559 * - There is other anecdotal evidence (from Emulex folks) about 10560 * arrays that use the offline peripheral qualifier for LUNs that 10561 * are on the "passive" path in an active/passive array. 10562 * 10563 * So the solution is provide a hopefully reasonable default 10564 * (return bad/no LUN) and allow the user to change the behavior 10565 * with a tunable/sysctl variable. 10566 */ 10567 if (lun != NULL) 10568 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10569 lun->be_lun->lun_type; 10570 else if (ctl_softc->inquiry_pq_no_lun == 0) 10571 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10572 else 10573 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10574 10575 /* RMB in byte 2 is 0 */ 10576 inq_ptr->version = SCSI_REV_SPC4; 10577 10578 /* 10579 * According to SAM-3, even if a device only supports a single 10580 * level of LUN addressing, it should still set the HISUP bit: 10581 * 10582 * 4.9.1 Logical unit numbers overview 10583 * 10584 * All logical unit number formats described in this standard are 10585 * hierarchical in structure even when only a single level in that 10586 * hierarchy is used. The HISUP bit shall be set to one in the 10587 * standard INQUIRY data (see SPC-2) when any logical unit number 10588 * format described in this standard is used. Non-hierarchical 10589 * formats are outside the scope of this standard. 10590 * 10591 * Therefore we set the HiSup bit here. 10592 * 10593 * The reponse format is 2, per SPC-3. 10594 */ 10595 inq_ptr->response_format = SID_HiSup | 2; 10596 10597 inq_ptr->additional_length = 10598 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10599 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10600 CTL_DEBUG_PRINT(("additional_length = %d\n", 10601 inq_ptr->additional_length)); 10602 10603 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10604 /* 16 bit addressing */ 10605 if (port_type == CTL_PORT_SCSI) 10606 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10607 /* XXX set the SID_MultiP bit here if we're actually going to 10608 respond on multiple ports */ 10609 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10610 10611 /* 16 bit data bus, synchronous transfers */ 10612 if (port_type == CTL_PORT_SCSI) 10613 inq_ptr->flags = SID_WBus16 | SID_Sync; 10614 /* 10615 * XXX KDM do we want to support tagged queueing on the control 10616 * device at all? 10617 */ 10618 if ((lun == NULL) 10619 || (lun->be_lun->lun_type != T_PROCESSOR)) 10620 inq_ptr->flags |= SID_CmdQue; 10621 /* 10622 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10623 * We have 8 bytes for the vendor name, and 16 bytes for the device 10624 * name and 4 bytes for the revision. 10625 */ 10626 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10627 "vendor")) == NULL) { 10628 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10629 } else { 10630 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10631 strncpy(inq_ptr->vendor, val, 10632 min(sizeof(inq_ptr->vendor), strlen(val))); 10633 } 10634 if (lun == NULL) { 10635 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10636 sizeof(inq_ptr->product)); 10637 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10638 switch (lun->be_lun->lun_type) { 10639 case T_DIRECT: 10640 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10641 sizeof(inq_ptr->product)); 10642 break; 10643 case T_PROCESSOR: 10644 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10645 sizeof(inq_ptr->product)); 10646 break; 10647 default: 10648 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10649 sizeof(inq_ptr->product)); 10650 break; 10651 } 10652 } else { 10653 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10654 strncpy(inq_ptr->product, val, 10655 min(sizeof(inq_ptr->product), strlen(val))); 10656 } 10657 10658 /* 10659 * XXX make this a macro somewhere so it automatically gets 10660 * incremented when we make changes. 10661 */ 10662 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10663 "revision")) == NULL) { 10664 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10665 } else { 10666 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10667 strncpy(inq_ptr->revision, val, 10668 min(sizeof(inq_ptr->revision), strlen(val))); 10669 } 10670 10671 /* 10672 * For parallel SCSI, we support double transition and single 10673 * transition clocking. We also support QAS (Quick Arbitration 10674 * and Selection) and Information Unit transfers on both the 10675 * control and array devices. 10676 */ 10677 if (port_type == CTL_PORT_SCSI) 10678 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10679 SID_SPI_IUS; 10680 10681 /* SAM-5 (no version claimed) */ 10682 scsi_ulto2b(0x00A0, inq_ptr->version1); 10683 /* SPC-4 (no version claimed) */ 10684 scsi_ulto2b(0x0460, inq_ptr->version2); 10685 if (port_type == CTL_PORT_FC) { 10686 /* FCP-2 ANSI INCITS.350:2003 */ 10687 scsi_ulto2b(0x0917, inq_ptr->version3); 10688 } else if (port_type == CTL_PORT_SCSI) { 10689 /* SPI-4 ANSI INCITS.362:200x */ 10690 scsi_ulto2b(0x0B56, inq_ptr->version3); 10691 } else if (port_type == CTL_PORT_ISCSI) { 10692 /* iSCSI (no version claimed) */ 10693 scsi_ulto2b(0x0960, inq_ptr->version3); 10694 } else if (port_type == CTL_PORT_SAS) { 10695 /* SAS (no version claimed) */ 10696 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10697 } 10698 10699 if (lun == NULL) { 10700 /* SBC-3 (no version claimed) */ 10701 scsi_ulto2b(0x04C0, inq_ptr->version4); 10702 } else { 10703 switch (lun->be_lun->lun_type) { 10704 case T_DIRECT: 10705 /* SBC-3 (no version claimed) */ 10706 scsi_ulto2b(0x04C0, inq_ptr->version4); 10707 break; 10708 case T_PROCESSOR: 10709 default: 10710 break; 10711 } 10712 } 10713 10714 ctsio->scsi_status = SCSI_STATUS_OK; 10715 if (ctsio->kern_data_len > 0) { 10716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10717 ctsio->be_move_done = ctl_config_move_done; 10718 ctl_datamove((union ctl_io *)ctsio); 10719 } else { 10720 ctsio->io_hdr.status = CTL_SUCCESS; 10721 ctl_done((union ctl_io *)ctsio); 10722 } 10723 10724 return (CTL_RETVAL_COMPLETE); 10725} 10726 10727int 10728ctl_inquiry(struct ctl_scsiio *ctsio) 10729{ 10730 struct scsi_inquiry *cdb; 10731 int retval; 10732 10733 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10734 10735 cdb = (struct scsi_inquiry *)ctsio->cdb; 10736 if (cdb->byte2 & SI_EVPD) 10737 retval = ctl_inquiry_evpd(ctsio); 10738 else if (cdb->page_code == 0) 10739 retval = ctl_inquiry_std(ctsio); 10740 else { 10741 ctl_set_invalid_field(ctsio, 10742 /*sks_valid*/ 1, 10743 /*command*/ 1, 10744 /*field*/ 2, 10745 /*bit_valid*/ 0, 10746 /*bit*/ 0); 10747 ctl_done((union ctl_io *)ctsio); 10748 return (CTL_RETVAL_COMPLETE); 10749 } 10750 10751 return (retval); 10752} 10753 10754/* 10755 * For known CDB types, parse the LBA and length. 10756 */ 10757static int 10758ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10759{ 10760 if (io->io_hdr.io_type != CTL_IO_SCSI) 10761 return (1); 10762 10763 switch (io->scsiio.cdb[0]) { 10764 case COMPARE_AND_WRITE: { 10765 struct scsi_compare_and_write *cdb; 10766 10767 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10768 10769 *lba = scsi_8btou64(cdb->addr); 10770 *len = cdb->length; 10771 break; 10772 } 10773 case READ_6: 10774 case WRITE_6: { 10775 struct scsi_rw_6 *cdb; 10776 10777 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10778 10779 *lba = scsi_3btoul(cdb->addr); 10780 /* only 5 bits are valid in the most significant address byte */ 10781 *lba &= 0x1fffff; 10782 *len = cdb->length; 10783 break; 10784 } 10785 case READ_10: 10786 case WRITE_10: { 10787 struct scsi_rw_10 *cdb; 10788 10789 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10790 10791 *lba = scsi_4btoul(cdb->addr); 10792 *len = scsi_2btoul(cdb->length); 10793 break; 10794 } 10795 case WRITE_VERIFY_10: { 10796 struct scsi_write_verify_10 *cdb; 10797 10798 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10799 10800 *lba = scsi_4btoul(cdb->addr); 10801 *len = scsi_2btoul(cdb->length); 10802 break; 10803 } 10804 case READ_12: 10805 case WRITE_12: { 10806 struct scsi_rw_12 *cdb; 10807 10808 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10809 10810 *lba = scsi_4btoul(cdb->addr); 10811 *len = scsi_4btoul(cdb->length); 10812 break; 10813 } 10814 case WRITE_VERIFY_12: { 10815 struct scsi_write_verify_12 *cdb; 10816 10817 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10818 10819 *lba = scsi_4btoul(cdb->addr); 10820 *len = scsi_4btoul(cdb->length); 10821 break; 10822 } 10823 case READ_16: 10824 case WRITE_16: { 10825 struct scsi_rw_16 *cdb; 10826 10827 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10828 10829 *lba = scsi_8btou64(cdb->addr); 10830 *len = scsi_4btoul(cdb->length); 10831 break; 10832 } 10833 case WRITE_VERIFY_16: { 10834 struct scsi_write_verify_16 *cdb; 10835 10836 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10837 10838 10839 *lba = scsi_8btou64(cdb->addr); 10840 *len = scsi_4btoul(cdb->length); 10841 break; 10842 } 10843 case WRITE_SAME_10: { 10844 struct scsi_write_same_10 *cdb; 10845 10846 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10847 10848 *lba = scsi_4btoul(cdb->addr); 10849 *len = scsi_2btoul(cdb->length); 10850 break; 10851 } 10852 case WRITE_SAME_16: { 10853 struct scsi_write_same_16 *cdb; 10854 10855 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10856 10857 *lba = scsi_8btou64(cdb->addr); 10858 *len = scsi_4btoul(cdb->length); 10859 break; 10860 } 10861 case VERIFY_10: { 10862 struct scsi_verify_10 *cdb; 10863 10864 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10865 10866 *lba = scsi_4btoul(cdb->addr); 10867 *len = scsi_2btoul(cdb->length); 10868 break; 10869 } 10870 case VERIFY_12: { 10871 struct scsi_verify_12 *cdb; 10872 10873 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10874 10875 *lba = scsi_4btoul(cdb->addr); 10876 *len = scsi_4btoul(cdb->length); 10877 break; 10878 } 10879 case VERIFY_16: { 10880 struct scsi_verify_16 *cdb; 10881 10882 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10883 10884 *lba = scsi_8btou64(cdb->addr); 10885 *len = scsi_4btoul(cdb->length); 10886 break; 10887 } 10888 case UNMAP: { 10889 *lba = 0; 10890 *len = UINT64_MAX; 10891 break; 10892 } 10893 default: 10894 return (1); 10895 break; /* NOTREACHED */ 10896 } 10897 10898 return (0); 10899} 10900 10901static ctl_action 10902ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10903{ 10904 uint64_t endlba1, endlba2; 10905 10906 endlba1 = lba1 + len1 - 1; 10907 endlba2 = lba2 + len2 - 1; 10908 10909 if ((endlba1 < lba2) 10910 || (endlba2 < lba1)) 10911 return (CTL_ACTION_PASS); 10912 else 10913 return (CTL_ACTION_BLOCK); 10914} 10915 10916static int 10917ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10918{ 10919 struct ctl_ptr_len_flags *ptrlen; 10920 struct scsi_unmap_desc *buf, *end, *range; 10921 uint64_t lba; 10922 uint32_t len; 10923 10924 /* If not UNMAP -- go other way. */ 10925 if (io->io_hdr.io_type != CTL_IO_SCSI || 10926 io->scsiio.cdb[0] != UNMAP) 10927 return (CTL_ACTION_ERROR); 10928 10929 /* If UNMAP without data -- block and wait for data. */ 10930 ptrlen = (struct ctl_ptr_len_flags *) 10931 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10932 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10933 ptrlen->ptr == NULL) 10934 return (CTL_ACTION_BLOCK); 10935 10936 /* UNMAP with data -- check for collision. */ 10937 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10938 end = buf + ptrlen->len / sizeof(*buf); 10939 for (range = buf; range < end; range++) { 10940 lba = scsi_8btou64(range->lba); 10941 len = scsi_4btoul(range->length); 10942 if ((lba < lba2 + len2) && (lba + len > lba2)) 10943 return (CTL_ACTION_BLOCK); 10944 } 10945 return (CTL_ACTION_PASS); 10946} 10947 10948static ctl_action 10949ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10950{ 10951 uint64_t lba1, lba2; 10952 uint64_t len1, len2; 10953 int retval; 10954 10955 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10956 return (CTL_ACTION_ERROR); 10957 10958 retval = ctl_extent_check_unmap(io2, lba1, len1); 10959 if (retval != CTL_ACTION_ERROR) 10960 return (retval); 10961 10962 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10963 return (CTL_ACTION_ERROR); 10964 10965 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10966} 10967 10968static ctl_action 10969ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10970 union ctl_io *ooa_io) 10971{ 10972 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10973 ctl_serialize_action *serialize_row; 10974 10975 /* 10976 * The initiator attempted multiple untagged commands at the same 10977 * time. Can't do that. 10978 */ 10979 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10980 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10981 && ((pending_io->io_hdr.nexus.targ_port == 10982 ooa_io->io_hdr.nexus.targ_port) 10983 && (pending_io->io_hdr.nexus.initid.id == 10984 ooa_io->io_hdr.nexus.initid.id)) 10985 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10986 return (CTL_ACTION_OVERLAP); 10987 10988 /* 10989 * The initiator attempted to send multiple tagged commands with 10990 * the same ID. (It's fine if different initiators have the same 10991 * tag ID.) 10992 * 10993 * Even if all of those conditions are true, we don't kill the I/O 10994 * if the command ahead of us has been aborted. We won't end up 10995 * sending it to the FETD, and it's perfectly legal to resend a 10996 * command with the same tag number as long as the previous 10997 * instance of this tag number has been aborted somehow. 10998 */ 10999 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11000 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11001 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11002 && ((pending_io->io_hdr.nexus.targ_port == 11003 ooa_io->io_hdr.nexus.targ_port) 11004 && (pending_io->io_hdr.nexus.initid.id == 11005 ooa_io->io_hdr.nexus.initid.id)) 11006 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11007 return (CTL_ACTION_OVERLAP_TAG); 11008 11009 /* 11010 * If we get a head of queue tag, SAM-3 says that we should 11011 * immediately execute it. 11012 * 11013 * What happens if this command would normally block for some other 11014 * reason? e.g. a request sense with a head of queue tag 11015 * immediately after a write. Normally that would block, but this 11016 * will result in its getting executed immediately... 11017 * 11018 * We currently return "pass" instead of "skip", so we'll end up 11019 * going through the rest of the queue to check for overlapped tags. 11020 * 11021 * XXX KDM check for other types of blockage first?? 11022 */ 11023 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11024 return (CTL_ACTION_PASS); 11025 11026 /* 11027 * Ordered tags have to block until all items ahead of them 11028 * have completed. If we get called with an ordered tag, we always 11029 * block, if something else is ahead of us in the queue. 11030 */ 11031 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11032 return (CTL_ACTION_BLOCK); 11033 11034 /* 11035 * Simple tags get blocked until all head of queue and ordered tags 11036 * ahead of them have completed. I'm lumping untagged commands in 11037 * with simple tags here. XXX KDM is that the right thing to do? 11038 */ 11039 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11040 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11041 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11042 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11043 return (CTL_ACTION_BLOCK); 11044 11045 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11046 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11047 11048 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11049 11050 switch (serialize_row[pending_entry->seridx]) { 11051 case CTL_SER_BLOCK: 11052 return (CTL_ACTION_BLOCK); 11053 case CTL_SER_EXTENT: 11054 return (ctl_extent_check(pending_io, ooa_io)); 11055 case CTL_SER_EXTENTOPT: 11056 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11057 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11058 return (ctl_extent_check(pending_io, ooa_io)); 11059 /* FALLTHROUGH */ 11060 case CTL_SER_PASS: 11061 return (CTL_ACTION_PASS); 11062 case CTL_SER_BLOCKOPT: 11063 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11064 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11065 return (CTL_ACTION_BLOCK); 11066 return (CTL_ACTION_PASS); 11067 case CTL_SER_SKIP: 11068 return (CTL_ACTION_SKIP); 11069 default: 11070 panic("invalid serialization value %d", 11071 serialize_row[pending_entry->seridx]); 11072 } 11073 11074 return (CTL_ACTION_ERROR); 11075} 11076 11077/* 11078 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11079 * Assumptions: 11080 * - pending_io is generally either incoming, or on the blocked queue 11081 * - starting I/O is the I/O we want to start the check with. 11082 */ 11083static ctl_action 11084ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11085 union ctl_io *starting_io) 11086{ 11087 union ctl_io *ooa_io; 11088 ctl_action action; 11089 11090 mtx_assert(&lun->lun_lock, MA_OWNED); 11091 11092 /* 11093 * Run back along the OOA queue, starting with the current 11094 * blocked I/O and going through every I/O before it on the 11095 * queue. If starting_io is NULL, we'll just end up returning 11096 * CTL_ACTION_PASS. 11097 */ 11098 for (ooa_io = starting_io; ooa_io != NULL; 11099 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11100 ooa_links)){ 11101 11102 /* 11103 * This routine just checks to see whether 11104 * cur_blocked is blocked by ooa_io, which is ahead 11105 * of it in the queue. It doesn't queue/dequeue 11106 * cur_blocked. 11107 */ 11108 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11109 switch (action) { 11110 case CTL_ACTION_BLOCK: 11111 case CTL_ACTION_OVERLAP: 11112 case CTL_ACTION_OVERLAP_TAG: 11113 case CTL_ACTION_SKIP: 11114 case CTL_ACTION_ERROR: 11115 return (action); 11116 break; /* NOTREACHED */ 11117 case CTL_ACTION_PASS: 11118 break; 11119 default: 11120 panic("invalid action %d", action); 11121 break; /* NOTREACHED */ 11122 } 11123 } 11124 11125 return (CTL_ACTION_PASS); 11126} 11127 11128/* 11129 * Assumptions: 11130 * - An I/O has just completed, and has been removed from the per-LUN OOA 11131 * queue, so some items on the blocked queue may now be unblocked. 11132 */ 11133static int 11134ctl_check_blocked(struct ctl_lun *lun) 11135{ 11136 union ctl_io *cur_blocked, *next_blocked; 11137 11138 mtx_assert(&lun->lun_lock, MA_OWNED); 11139 11140 /* 11141 * Run forward from the head of the blocked queue, checking each 11142 * entry against the I/Os prior to it on the OOA queue to see if 11143 * there is still any blockage. 11144 * 11145 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11146 * with our removing a variable on it while it is traversing the 11147 * list. 11148 */ 11149 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11150 cur_blocked != NULL; cur_blocked = next_blocked) { 11151 union ctl_io *prev_ooa; 11152 ctl_action action; 11153 11154 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11155 blocked_links); 11156 11157 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11158 ctl_ooaq, ooa_links); 11159 11160 /* 11161 * If cur_blocked happens to be the first item in the OOA 11162 * queue now, prev_ooa will be NULL, and the action 11163 * returned will just be CTL_ACTION_PASS. 11164 */ 11165 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11166 11167 switch (action) { 11168 case CTL_ACTION_BLOCK: 11169 /* Nothing to do here, still blocked */ 11170 break; 11171 case CTL_ACTION_OVERLAP: 11172 case CTL_ACTION_OVERLAP_TAG: 11173 /* 11174 * This shouldn't happen! In theory we've already 11175 * checked this command for overlap... 11176 */ 11177 break; 11178 case CTL_ACTION_PASS: 11179 case CTL_ACTION_SKIP: { 11180 struct ctl_softc *softc; 11181 const struct ctl_cmd_entry *entry; 11182 uint32_t initidx; 11183 int isc_retval; 11184 11185 /* 11186 * The skip case shouldn't happen, this transaction 11187 * should have never made it onto the blocked queue. 11188 */ 11189 /* 11190 * This I/O is no longer blocked, we can remove it 11191 * from the blocked queue. Since this is a TAILQ 11192 * (doubly linked list), we can do O(1) removals 11193 * from any place on the list. 11194 */ 11195 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11196 blocked_links); 11197 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11198 11199 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11200 /* 11201 * Need to send IO back to original side to 11202 * run 11203 */ 11204 union ctl_ha_msg msg_info; 11205 11206 msg_info.hdr.original_sc = 11207 cur_blocked->io_hdr.original_sc; 11208 msg_info.hdr.serializing_sc = cur_blocked; 11209 msg_info.hdr.msg_type = CTL_MSG_R2R; 11210 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11211 &msg_info, sizeof(msg_info), 0)) > 11212 CTL_HA_STATUS_SUCCESS) { 11213 printf("CTL:Check Blocked error from " 11214 "ctl_ha_msg_send %d\n", 11215 isc_retval); 11216 } 11217 break; 11218 } 11219 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11220 softc = control_softc; 11221 11222 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11223 11224 /* 11225 * Check this I/O for LUN state changes that may 11226 * have happened while this command was blocked. 11227 * The LUN state may have been changed by a command 11228 * ahead of us in the queue, so we need to re-check 11229 * for any states that can be caused by SCSI 11230 * commands. 11231 */ 11232 if (ctl_scsiio_lun_check(softc, lun, entry, 11233 &cur_blocked->scsiio) == 0) { 11234 cur_blocked->io_hdr.flags |= 11235 CTL_FLAG_IS_WAS_ON_RTR; 11236 ctl_enqueue_rtr(cur_blocked); 11237 } else 11238 ctl_done(cur_blocked); 11239 break; 11240 } 11241 default: 11242 /* 11243 * This probably shouldn't happen -- we shouldn't 11244 * get CTL_ACTION_ERROR, or anything else. 11245 */ 11246 break; 11247 } 11248 } 11249 11250 return (CTL_RETVAL_COMPLETE); 11251} 11252 11253/* 11254 * This routine (with one exception) checks LUN flags that can be set by 11255 * commands ahead of us in the OOA queue. These flags have to be checked 11256 * when a command initially comes in, and when we pull a command off the 11257 * blocked queue and are preparing to execute it. The reason we have to 11258 * check these flags for commands on the blocked queue is that the LUN 11259 * state may have been changed by a command ahead of us while we're on the 11260 * blocked queue. 11261 * 11262 * Ordering is somewhat important with these checks, so please pay 11263 * careful attention to the placement of any new checks. 11264 */ 11265static int 11266ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11267 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11268{ 11269 int retval; 11270 uint32_t residx; 11271 11272 retval = 0; 11273 11274 mtx_assert(&lun->lun_lock, MA_OWNED); 11275 11276 /* 11277 * If this shelf is a secondary shelf controller, we have to reject 11278 * any media access commands. 11279 */ 11280#if 0 11281 /* No longer needed for HA */ 11282 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11283 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11284 ctl_set_lun_standby(ctsio); 11285 retval = 1; 11286 goto bailout; 11287 } 11288#endif 11289 11290 /* 11291 * Check for a reservation conflict. If this command isn't allowed 11292 * even on reserved LUNs, and if this initiator isn't the one who 11293 * reserved us, reject the command with a reservation conflict. 11294 */ 11295 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11296 if ((lun->flags & CTL_LUN_RESERVED) 11297 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11298 if (lun->res_idx != residx) { 11299 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11300 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11301 retval = 1; 11302 goto bailout; 11303 } 11304 } 11305 11306 if ((lun->flags & CTL_LUN_PR_RESERVED) 11307 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11308 /* 11309 * if we aren't registered or it's a res holder type 11310 * reservation and this isn't the res holder then set a 11311 * conflict. 11312 * NOTE: Commands which might be allowed on write exclusive 11313 * type reservations are checked in the particular command 11314 * for a conflict. Read and SSU are the only ones. 11315 */ 11316 if (!lun->per_res[residx].registered 11317 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11318 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11319 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11320 retval = 1; 11321 goto bailout; 11322 } 11323 11324 } 11325 11326 if ((lun->flags & CTL_LUN_OFFLINE) 11327 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11328 ctl_set_lun_not_ready(ctsio); 11329 retval = 1; 11330 goto bailout; 11331 } 11332 11333 /* 11334 * If the LUN is stopped, see if this particular command is allowed 11335 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11336 */ 11337 if ((lun->flags & CTL_LUN_STOPPED) 11338 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11339 /* "Logical unit not ready, initializing cmd. required" */ 11340 ctl_set_lun_stopped(ctsio); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 11345 if ((lun->flags & CTL_LUN_INOPERABLE) 11346 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11347 /* "Medium format corrupted" */ 11348 ctl_set_medium_format_corrupted(ctsio); 11349 retval = 1; 11350 goto bailout; 11351 } 11352 11353bailout: 11354 return (retval); 11355 11356} 11357 11358static void 11359ctl_failover_io(union ctl_io *io, int have_lock) 11360{ 11361 ctl_set_busy(&io->scsiio); 11362 ctl_done(io); 11363} 11364 11365static void 11366ctl_failover(void) 11367{ 11368 struct ctl_lun *lun; 11369 struct ctl_softc *ctl_softc; 11370 union ctl_io *next_io, *pending_io; 11371 union ctl_io *io; 11372 int lun_idx; 11373 int i; 11374 11375 ctl_softc = control_softc; 11376 11377 mtx_lock(&ctl_softc->ctl_lock); 11378 /* 11379 * Remove any cmds from the other SC from the rtr queue. These 11380 * will obviously only be for LUNs for which we're the primary. 11381 * We can't send status or get/send data for these commands. 11382 * Since they haven't been executed yet, we can just remove them. 11383 * We'll either abort them or delete them below, depending on 11384 * which HA mode we're in. 11385 */ 11386#ifdef notyet 11387 mtx_lock(&ctl_softc->queue_lock); 11388 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11389 io != NULL; io = next_io) { 11390 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11391 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11392 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11393 ctl_io_hdr, links); 11394 } 11395 mtx_unlock(&ctl_softc->queue_lock); 11396#endif 11397 11398 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11399 lun = ctl_softc->ctl_luns[lun_idx]; 11400 if (lun==NULL) 11401 continue; 11402 11403 /* 11404 * Processor LUNs are primary on both sides. 11405 * XXX will this always be true? 11406 */ 11407 if (lun->be_lun->lun_type == T_PROCESSOR) 11408 continue; 11409 11410 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11411 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11412 printf("FAILOVER: primary lun %d\n", lun_idx); 11413 /* 11414 * Remove all commands from the other SC. First from the 11415 * blocked queue then from the ooa queue. Once we have 11416 * removed them. Call ctl_check_blocked to see if there 11417 * is anything that can run. 11418 */ 11419 for (io = (union ctl_io *)TAILQ_FIRST( 11420 &lun->blocked_queue); io != NULL; io = next_io) { 11421 11422 next_io = (union ctl_io *)TAILQ_NEXT( 11423 &io->io_hdr, blocked_links); 11424 11425 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11426 TAILQ_REMOVE(&lun->blocked_queue, 11427 &io->io_hdr,blocked_links); 11428 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11429 TAILQ_REMOVE(&lun->ooa_queue, 11430 &io->io_hdr, ooa_links); 11431 11432 ctl_free_io(io); 11433 } 11434 } 11435 11436 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11437 io != NULL; io = next_io) { 11438 11439 next_io = (union ctl_io *)TAILQ_NEXT( 11440 &io->io_hdr, ooa_links); 11441 11442 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11443 11444 TAILQ_REMOVE(&lun->ooa_queue, 11445 &io->io_hdr, 11446 ooa_links); 11447 11448 ctl_free_io(io); 11449 } 11450 } 11451 ctl_check_blocked(lun); 11452 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11453 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11454 11455 printf("FAILOVER: primary lun %d\n", lun_idx); 11456 /* 11457 * Abort all commands from the other SC. We can't 11458 * send status back for them now. These should get 11459 * cleaned up when they are completed or come out 11460 * for a datamove operation. 11461 */ 11462 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11463 io != NULL; io = next_io) { 11464 next_io = (union ctl_io *)TAILQ_NEXT( 11465 &io->io_hdr, ooa_links); 11466 11467 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11468 io->io_hdr.flags |= CTL_FLAG_ABORT; 11469 } 11470 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11471 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11472 11473 printf("FAILOVER: secondary lun %d\n", lun_idx); 11474 11475 lun->flags |= CTL_LUN_PRIMARY_SC; 11476 11477 /* 11478 * We send all I/O that was sent to this controller 11479 * and redirected to the other side back with 11480 * busy status, and have the initiator retry it. 11481 * Figuring out how much data has been transferred, 11482 * etc. and picking up where we left off would be 11483 * very tricky. 11484 * 11485 * XXX KDM need to remove I/O from the blocked 11486 * queue as well! 11487 */ 11488 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11489 &lun->ooa_queue); pending_io != NULL; 11490 pending_io = next_io) { 11491 11492 next_io = (union ctl_io *)TAILQ_NEXT( 11493 &pending_io->io_hdr, ooa_links); 11494 11495 pending_io->io_hdr.flags &= 11496 ~CTL_FLAG_SENT_2OTHER_SC; 11497 11498 if (pending_io->io_hdr.flags & 11499 CTL_FLAG_IO_ACTIVE) { 11500 pending_io->io_hdr.flags |= 11501 CTL_FLAG_FAILOVER; 11502 } else { 11503 ctl_set_busy(&pending_io->scsiio); 11504 ctl_done(pending_io); 11505 } 11506 } 11507 11508 /* 11509 * Build Unit Attention 11510 */ 11511 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11512 lun->pending_ua[i] |= 11513 CTL_UA_ASYM_ACC_CHANGE; 11514 } 11515 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11516 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11517 printf("FAILOVER: secondary lun %d\n", lun_idx); 11518 /* 11519 * if the first io on the OOA is not on the RtR queue 11520 * add it. 11521 */ 11522 lun->flags |= CTL_LUN_PRIMARY_SC; 11523 11524 pending_io = (union ctl_io *)TAILQ_FIRST( 11525 &lun->ooa_queue); 11526 if (pending_io==NULL) { 11527 printf("Nothing on OOA queue\n"); 11528 continue; 11529 } 11530 11531 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11532 if ((pending_io->io_hdr.flags & 11533 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11534 pending_io->io_hdr.flags |= 11535 CTL_FLAG_IS_WAS_ON_RTR; 11536 ctl_enqueue_rtr(pending_io); 11537 } 11538#if 0 11539 else 11540 { 11541 printf("Tag 0x%04x is running\n", 11542 pending_io->scsiio.tag_num); 11543 } 11544#endif 11545 11546 next_io = (union ctl_io *)TAILQ_NEXT( 11547 &pending_io->io_hdr, ooa_links); 11548 for (pending_io=next_io; pending_io != NULL; 11549 pending_io = next_io) { 11550 pending_io->io_hdr.flags &= 11551 ~CTL_FLAG_SENT_2OTHER_SC; 11552 next_io = (union ctl_io *)TAILQ_NEXT( 11553 &pending_io->io_hdr, ooa_links); 11554 if (pending_io->io_hdr.flags & 11555 CTL_FLAG_IS_WAS_ON_RTR) { 11556#if 0 11557 printf("Tag 0x%04x is running\n", 11558 pending_io->scsiio.tag_num); 11559#endif 11560 continue; 11561 } 11562 11563 switch (ctl_check_ooa(lun, pending_io, 11564 (union ctl_io *)TAILQ_PREV( 11565 &pending_io->io_hdr, ctl_ooaq, 11566 ooa_links))) { 11567 11568 case CTL_ACTION_BLOCK: 11569 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11570 &pending_io->io_hdr, 11571 blocked_links); 11572 pending_io->io_hdr.flags |= 11573 CTL_FLAG_BLOCKED; 11574 break; 11575 case CTL_ACTION_PASS: 11576 case CTL_ACTION_SKIP: 11577 pending_io->io_hdr.flags |= 11578 CTL_FLAG_IS_WAS_ON_RTR; 11579 ctl_enqueue_rtr(pending_io); 11580 break; 11581 case CTL_ACTION_OVERLAP: 11582 ctl_set_overlapped_cmd( 11583 (struct ctl_scsiio *)pending_io); 11584 ctl_done(pending_io); 11585 break; 11586 case CTL_ACTION_OVERLAP_TAG: 11587 ctl_set_overlapped_tag( 11588 (struct ctl_scsiio *)pending_io, 11589 pending_io->scsiio.tag_num & 0xff); 11590 ctl_done(pending_io); 11591 break; 11592 case CTL_ACTION_ERROR: 11593 default: 11594 ctl_set_internal_failure( 11595 (struct ctl_scsiio *)pending_io, 11596 0, // sks_valid 11597 0); //retry count 11598 ctl_done(pending_io); 11599 break; 11600 } 11601 } 11602 11603 /* 11604 * Build Unit Attention 11605 */ 11606 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11607 lun->pending_ua[i] |= 11608 CTL_UA_ASYM_ACC_CHANGE; 11609 } 11610 } else { 11611 panic("Unhandled HA mode failover, LUN flags = %#x, " 11612 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11613 } 11614 } 11615 ctl_pause_rtr = 0; 11616 mtx_unlock(&ctl_softc->ctl_lock); 11617} 11618 11619static int 11620ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11621{ 11622 struct ctl_lun *lun; 11623 const struct ctl_cmd_entry *entry; 11624 uint32_t initidx, targ_lun; 11625 int retval; 11626 11627 retval = 0; 11628 11629 lun = NULL; 11630 11631 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11632 if ((targ_lun < CTL_MAX_LUNS) 11633 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11634 lun = ctl_softc->ctl_luns[targ_lun]; 11635 /* 11636 * If the LUN is invalid, pretend that it doesn't exist. 11637 * It will go away as soon as all pending I/O has been 11638 * completed. 11639 */ 11640 if (lun->flags & CTL_LUN_DISABLED) { 11641 lun = NULL; 11642 } else { 11643 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11644 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11645 lun->be_lun; 11646 if (lun->be_lun->lun_type == T_PROCESSOR) { 11647 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11648 } 11649 11650 /* 11651 * Every I/O goes into the OOA queue for a 11652 * particular LUN, and stays there until completion. 11653 */ 11654 mtx_lock(&lun->lun_lock); 11655 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11656 ooa_links); 11657 } 11658 } else { 11659 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11660 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11661 } 11662 11663 /* Get command entry and return error if it is unsuppotyed. */ 11664 entry = ctl_validate_command(ctsio); 11665 if (entry == NULL) { 11666 if (lun) 11667 mtx_unlock(&lun->lun_lock); 11668 return (retval); 11669 } 11670 11671 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11672 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11673 11674 /* 11675 * Check to see whether we can send this command to LUNs that don't 11676 * exist. This should pretty much only be the case for inquiry 11677 * and request sense. Further checks, below, really require having 11678 * a LUN, so we can't really check the command anymore. Just put 11679 * it on the rtr queue. 11680 */ 11681 if (lun == NULL) { 11682 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11683 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11684 ctl_enqueue_rtr((union ctl_io *)ctsio); 11685 return (retval); 11686 } 11687 11688 ctl_set_unsupported_lun(ctsio); 11689 ctl_done((union ctl_io *)ctsio); 11690 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11691 return (retval); 11692 } else { 11693 /* 11694 * Make sure we support this particular command on this LUN. 11695 * e.g., we don't support writes to the control LUN. 11696 */ 11697 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11698 mtx_unlock(&lun->lun_lock); 11699 ctl_set_invalid_opcode(ctsio); 11700 ctl_done((union ctl_io *)ctsio); 11701 return (retval); 11702 } 11703 } 11704 11705 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11706 11707#ifdef CTL_WITH_CA 11708 /* 11709 * If we've got a request sense, it'll clear the contingent 11710 * allegiance condition. Otherwise, if we have a CA condition for 11711 * this initiator, clear it, because it sent down a command other 11712 * than request sense. 11713 */ 11714 if ((ctsio->cdb[0] != REQUEST_SENSE) 11715 && (ctl_is_set(lun->have_ca, initidx))) 11716 ctl_clear_mask(lun->have_ca, initidx); 11717#endif 11718 11719 /* 11720 * If the command has this flag set, it handles its own unit 11721 * attention reporting, we shouldn't do anything. Otherwise we 11722 * check for any pending unit attentions, and send them back to the 11723 * initiator. We only do this when a command initially comes in, 11724 * not when we pull it off the blocked queue. 11725 * 11726 * According to SAM-3, section 5.3.2, the order that things get 11727 * presented back to the host is basically unit attentions caused 11728 * by some sort of reset event, busy status, reservation conflicts 11729 * or task set full, and finally any other status. 11730 * 11731 * One issue here is that some of the unit attentions we report 11732 * don't fall into the "reset" category (e.g. "reported luns data 11733 * has changed"). So reporting it here, before the reservation 11734 * check, may be technically wrong. I guess the only thing to do 11735 * would be to check for and report the reset events here, and then 11736 * check for the other unit attention types after we check for a 11737 * reservation conflict. 11738 * 11739 * XXX KDM need to fix this 11740 */ 11741 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11742 ctl_ua_type ua_type; 11743 11744 ua_type = lun->pending_ua[initidx]; 11745 if (ua_type != CTL_UA_NONE) { 11746 scsi_sense_data_type sense_format; 11747 11748 if (lun != NULL) 11749 sense_format = (lun->flags & 11750 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11751 SSD_TYPE_FIXED; 11752 else 11753 sense_format = SSD_TYPE_FIXED; 11754 11755 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11756 sense_format); 11757 if (ua_type != CTL_UA_NONE) { 11758 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11759 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11760 CTL_AUTOSENSE; 11761 ctsio->sense_len = SSD_FULL_SIZE; 11762 lun->pending_ua[initidx] &= ~ua_type; 11763 mtx_unlock(&lun->lun_lock); 11764 ctl_done((union ctl_io *)ctsio); 11765 return (retval); 11766 } 11767 } 11768 } 11769 11770 11771 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11772 mtx_unlock(&lun->lun_lock); 11773 ctl_done((union ctl_io *)ctsio); 11774 return (retval); 11775 } 11776 11777 /* 11778 * XXX CHD this is where we want to send IO to other side if 11779 * this LUN is secondary on this SC. We will need to make a copy 11780 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11781 * the copy we send as FROM_OTHER. 11782 * We also need to stuff the address of the original IO so we can 11783 * find it easily. Something similar will need be done on the other 11784 * side so when we are done we can find the copy. 11785 */ 11786 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11787 union ctl_ha_msg msg_info; 11788 int isc_retval; 11789 11790 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11791 11792 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11793 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11794#if 0 11795 printf("1. ctsio %p\n", ctsio); 11796#endif 11797 msg_info.hdr.serializing_sc = NULL; 11798 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11799 msg_info.scsi.tag_num = ctsio->tag_num; 11800 msg_info.scsi.tag_type = ctsio->tag_type; 11801 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11802 11803 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11804 11805 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11806 (void *)&msg_info, sizeof(msg_info), 0)) > 11807 CTL_HA_STATUS_SUCCESS) { 11808 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11809 isc_retval); 11810 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11811 } else { 11812#if 0 11813 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11814#endif 11815 } 11816 11817 /* 11818 * XXX KDM this I/O is off the incoming queue, but hasn't 11819 * been inserted on any other queue. We may need to come 11820 * up with a holding queue while we wait for serialization 11821 * so that we have an idea of what we're waiting for from 11822 * the other side. 11823 */ 11824 mtx_unlock(&lun->lun_lock); 11825 return (retval); 11826 } 11827 11828 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11829 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11830 ctl_ooaq, ooa_links))) { 11831 case CTL_ACTION_BLOCK: 11832 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11833 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11834 blocked_links); 11835 mtx_unlock(&lun->lun_lock); 11836 return (retval); 11837 case CTL_ACTION_PASS: 11838 case CTL_ACTION_SKIP: 11839 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11840 mtx_unlock(&lun->lun_lock); 11841 ctl_enqueue_rtr((union ctl_io *)ctsio); 11842 break; 11843 case CTL_ACTION_OVERLAP: 11844 mtx_unlock(&lun->lun_lock); 11845 ctl_set_overlapped_cmd(ctsio); 11846 ctl_done((union ctl_io *)ctsio); 11847 break; 11848 case CTL_ACTION_OVERLAP_TAG: 11849 mtx_unlock(&lun->lun_lock); 11850 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11851 ctl_done((union ctl_io *)ctsio); 11852 break; 11853 case CTL_ACTION_ERROR: 11854 default: 11855 mtx_unlock(&lun->lun_lock); 11856 ctl_set_internal_failure(ctsio, 11857 /*sks_valid*/ 0, 11858 /*retry_count*/ 0); 11859 ctl_done((union ctl_io *)ctsio); 11860 break; 11861 } 11862 return (retval); 11863} 11864 11865const struct ctl_cmd_entry * 11866ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11867{ 11868 const struct ctl_cmd_entry *entry; 11869 int service_action; 11870 11871 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11872 if (sa) 11873 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11874 if (entry->flags & CTL_CMD_FLAG_SA5) { 11875 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11876 entry = &((const struct ctl_cmd_entry *) 11877 entry->execute)[service_action]; 11878 } 11879 return (entry); 11880} 11881 11882const struct ctl_cmd_entry * 11883ctl_validate_command(struct ctl_scsiio *ctsio) 11884{ 11885 const struct ctl_cmd_entry *entry; 11886 int i, sa; 11887 uint8_t diff; 11888 11889 entry = ctl_get_cmd_entry(ctsio, &sa); 11890 if (entry->execute == NULL) { 11891 if (sa) 11892 ctl_set_invalid_field(ctsio, 11893 /*sks_valid*/ 1, 11894 /*command*/ 1, 11895 /*field*/ 1, 11896 /*bit_valid*/ 1, 11897 /*bit*/ 4); 11898 else 11899 ctl_set_invalid_opcode(ctsio); 11900 ctl_done((union ctl_io *)ctsio); 11901 return (NULL); 11902 } 11903 KASSERT(entry->length > 0, 11904 ("Not defined length for command 0x%02x/0x%02x", 11905 ctsio->cdb[0], ctsio->cdb[1])); 11906 for (i = 1; i < entry->length; i++) { 11907 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11908 if (diff == 0) 11909 continue; 11910 ctl_set_invalid_field(ctsio, 11911 /*sks_valid*/ 1, 11912 /*command*/ 1, 11913 /*field*/ i, 11914 /*bit_valid*/ 1, 11915 /*bit*/ fls(diff) - 1); 11916 ctl_done((union ctl_io *)ctsio); 11917 return (NULL); 11918 } 11919 return (entry); 11920} 11921 11922static int 11923ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11924{ 11925 11926 switch (lun_type) { 11927 case T_PROCESSOR: 11928 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11929 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11930 return (0); 11931 break; 11932 case T_DIRECT: 11933 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11934 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11935 return (0); 11936 break; 11937 default: 11938 return (0); 11939 } 11940 return (1); 11941} 11942 11943static int 11944ctl_scsiio(struct ctl_scsiio *ctsio) 11945{ 11946 int retval; 11947 const struct ctl_cmd_entry *entry; 11948 11949 retval = CTL_RETVAL_COMPLETE; 11950 11951 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11952 11953 entry = ctl_get_cmd_entry(ctsio, NULL); 11954 11955 /* 11956 * If this I/O has been aborted, just send it straight to 11957 * ctl_done() without executing it. 11958 */ 11959 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11960 ctl_done((union ctl_io *)ctsio); 11961 goto bailout; 11962 } 11963 11964 /* 11965 * All the checks should have been handled by ctl_scsiio_precheck(). 11966 * We should be clear now to just execute the I/O. 11967 */ 11968 retval = entry->execute(ctsio); 11969 11970bailout: 11971 return (retval); 11972} 11973 11974/* 11975 * Since we only implement one target right now, a bus reset simply resets 11976 * our single target. 11977 */ 11978static int 11979ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11980{ 11981 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11982} 11983 11984static int 11985ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11986 ctl_ua_type ua_type) 11987{ 11988 struct ctl_lun *lun; 11989 int retval; 11990 11991 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11992 union ctl_ha_msg msg_info; 11993 11994 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11995 msg_info.hdr.nexus = io->io_hdr.nexus; 11996 if (ua_type==CTL_UA_TARG_RESET) 11997 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11998 else 11999 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12000 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12001 msg_info.hdr.original_sc = NULL; 12002 msg_info.hdr.serializing_sc = NULL; 12003 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12004 (void *)&msg_info, sizeof(msg_info), 0)) { 12005 } 12006 } 12007 retval = 0; 12008 12009 mtx_lock(&ctl_softc->ctl_lock); 12010 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12011 retval += ctl_lun_reset(lun, io, ua_type); 12012 mtx_unlock(&ctl_softc->ctl_lock); 12013 12014 return (retval); 12015} 12016 12017/* 12018 * The LUN should always be set. The I/O is optional, and is used to 12019 * distinguish between I/Os sent by this initiator, and by other 12020 * initiators. We set unit attention for initiators other than this one. 12021 * SAM-3 is vague on this point. It does say that a unit attention should 12022 * be established for other initiators when a LUN is reset (see section 12023 * 5.7.3), but it doesn't specifically say that the unit attention should 12024 * be established for this particular initiator when a LUN is reset. Here 12025 * is the relevant text, from SAM-3 rev 8: 12026 * 12027 * 5.7.2 When a SCSI initiator port aborts its own tasks 12028 * 12029 * When a SCSI initiator port causes its own task(s) to be aborted, no 12030 * notification that the task(s) have been aborted shall be returned to 12031 * the SCSI initiator port other than the completion response for the 12032 * command or task management function action that caused the task(s) to 12033 * be aborted and notification(s) associated with related effects of the 12034 * action (e.g., a reset unit attention condition). 12035 * 12036 * XXX KDM for now, we're setting unit attention for all initiators. 12037 */ 12038static int 12039ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12040{ 12041 union ctl_io *xio; 12042#if 0 12043 uint32_t initindex; 12044#endif 12045 int i; 12046 12047 mtx_lock(&lun->lun_lock); 12048 /* 12049 * Run through the OOA queue and abort each I/O. 12050 */ 12051#if 0 12052 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12053#endif 12054 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12055 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12056 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12057 } 12058 12059 /* 12060 * This version sets unit attention for every 12061 */ 12062#if 0 12063 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12064 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12065 if (initindex == i) 12066 continue; 12067 lun->pending_ua[i] |= ua_type; 12068 } 12069#endif 12070 12071 /* 12072 * A reset (any kind, really) clears reservations established with 12073 * RESERVE/RELEASE. It does not clear reservations established 12074 * with PERSISTENT RESERVE OUT, but we don't support that at the 12075 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12076 * reservations made with the RESERVE/RELEASE commands, because 12077 * those commands are obsolete in SPC-3. 12078 */ 12079 lun->flags &= ~CTL_LUN_RESERVED; 12080 12081 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12082#ifdef CTL_WITH_CA 12083 ctl_clear_mask(lun->have_ca, i); 12084#endif 12085 lun->pending_ua[i] |= ua_type; 12086 } 12087 mtx_unlock(&lun->lun_lock); 12088 12089 return (0); 12090} 12091 12092static void 12093ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12094 int other_sc) 12095{ 12096 union ctl_io *xio; 12097 12098 mtx_assert(&lun->lun_lock, MA_OWNED); 12099 12100 /* 12101 * Run through the OOA queue and attempt to find the given I/O. 12102 * The target port, initiator ID, tag type and tag number have to 12103 * match the values that we got from the initiator. If we have an 12104 * untagged command to abort, simply abort the first untagged command 12105 * we come to. We only allow one untagged command at a time of course. 12106 */ 12107 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12108 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12109 12110 if ((targ_port == UINT32_MAX || 12111 targ_port == xio->io_hdr.nexus.targ_port) && 12112 (init_id == UINT32_MAX || 12113 init_id == xio->io_hdr.nexus.initid.id)) { 12114 if (targ_port != xio->io_hdr.nexus.targ_port || 12115 init_id != xio->io_hdr.nexus.initid.id) 12116 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12117 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12118 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12119 union ctl_ha_msg msg_info; 12120 12121 msg_info.hdr.nexus = xio->io_hdr.nexus; 12122 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12123 msg_info.task.tag_num = xio->scsiio.tag_num; 12124 msg_info.task.tag_type = xio->scsiio.tag_type; 12125 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12126 msg_info.hdr.original_sc = NULL; 12127 msg_info.hdr.serializing_sc = NULL; 12128 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12129 (void *)&msg_info, sizeof(msg_info), 0); 12130 } 12131 } 12132 } 12133} 12134 12135static int 12136ctl_abort_task_set(union ctl_io *io) 12137{ 12138 struct ctl_softc *softc = control_softc; 12139 struct ctl_lun *lun; 12140 uint32_t targ_lun; 12141 12142 /* 12143 * Look up the LUN. 12144 */ 12145 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12146 mtx_lock(&softc->ctl_lock); 12147 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12148 lun = softc->ctl_luns[targ_lun]; 12149 else { 12150 mtx_unlock(&softc->ctl_lock); 12151 return (1); 12152 } 12153 12154 mtx_lock(&lun->lun_lock); 12155 mtx_unlock(&softc->ctl_lock); 12156 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12157 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12158 io->io_hdr.nexus.initid.id, 12159 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12160 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12161 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12162 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12163 } 12164 mtx_unlock(&lun->lun_lock); 12165 return (0); 12166} 12167 12168static int 12169ctl_i_t_nexus_reset(union ctl_io *io) 12170{ 12171 struct ctl_softc *softc = control_softc; 12172 struct ctl_lun *lun; 12173 uint32_t initindex, residx; 12174 12175 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12176 residx = ctl_get_resindex(&io->io_hdr.nexus); 12177 mtx_lock(&softc->ctl_lock); 12178 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12179 mtx_lock(&lun->lun_lock); 12180 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12181 io->io_hdr.nexus.initid.id, 12182 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12183#ifdef CTL_WITH_CA 12184 ctl_clear_mask(lun->have_ca, initindex); 12185#endif 12186 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12187 lun->flags &= ~CTL_LUN_RESERVED; 12188 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12189 mtx_unlock(&lun->lun_lock); 12190 } 12191 mtx_unlock(&softc->ctl_lock); 12192 return (0); 12193} 12194 12195static int 12196ctl_abort_task(union ctl_io *io) 12197{ 12198 union ctl_io *xio; 12199 struct ctl_lun *lun; 12200 struct ctl_softc *ctl_softc; 12201#if 0 12202 struct sbuf sb; 12203 char printbuf[128]; 12204#endif 12205 int found; 12206 uint32_t targ_lun; 12207 12208 ctl_softc = control_softc; 12209 found = 0; 12210 12211 /* 12212 * Look up the LUN. 12213 */ 12214 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12215 mtx_lock(&ctl_softc->ctl_lock); 12216 if ((targ_lun < CTL_MAX_LUNS) 12217 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12218 lun = ctl_softc->ctl_luns[targ_lun]; 12219 else { 12220 mtx_unlock(&ctl_softc->ctl_lock); 12221 return (1); 12222 } 12223 12224#if 0 12225 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12226 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12227#endif 12228 12229 mtx_lock(&lun->lun_lock); 12230 mtx_unlock(&ctl_softc->ctl_lock); 12231 /* 12232 * Run through the OOA queue and attempt to find the given I/O. 12233 * The target port, initiator ID, tag type and tag number have to 12234 * match the values that we got from the initiator. If we have an 12235 * untagged command to abort, simply abort the first untagged command 12236 * we come to. We only allow one untagged command at a time of course. 12237 */ 12238#if 0 12239 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12240#endif 12241 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12242 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12243#if 0 12244 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12245 12246 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12247 lun->lun, xio->scsiio.tag_num, 12248 xio->scsiio.tag_type, 12249 (xio->io_hdr.blocked_links.tqe_prev 12250 == NULL) ? "" : " BLOCKED", 12251 (xio->io_hdr.flags & 12252 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12253 (xio->io_hdr.flags & 12254 CTL_FLAG_ABORT) ? " ABORT" : "", 12255 (xio->io_hdr.flags & 12256 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12257 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12258 sbuf_finish(&sb); 12259 printf("%s\n", sbuf_data(&sb)); 12260#endif 12261 12262 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12263 && (xio->io_hdr.nexus.initid.id == 12264 io->io_hdr.nexus.initid.id)) { 12265 /* 12266 * If the abort says that the task is untagged, the 12267 * task in the queue must be untagged. Otherwise, 12268 * we just check to see whether the tag numbers 12269 * match. This is because the QLogic firmware 12270 * doesn't pass back the tag type in an abort 12271 * request. 12272 */ 12273#if 0 12274 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12275 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12276 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12277#endif 12278 /* 12279 * XXX KDM we've got problems with FC, because it 12280 * doesn't send down a tag type with aborts. So we 12281 * can only really go by the tag number... 12282 * This may cause problems with parallel SCSI. 12283 * Need to figure that out!! 12284 */ 12285 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12286 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12287 found = 1; 12288 if ((io->io_hdr.flags & 12289 CTL_FLAG_FROM_OTHER_SC) == 0 && 12290 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12291 union ctl_ha_msg msg_info; 12292 12293 io->io_hdr.flags |= 12294 CTL_FLAG_SENT_2OTHER_SC; 12295 msg_info.hdr.nexus = io->io_hdr.nexus; 12296 msg_info.task.task_action = 12297 CTL_TASK_ABORT_TASK; 12298 msg_info.task.tag_num = 12299 io->taskio.tag_num; 12300 msg_info.task.tag_type = 12301 io->taskio.tag_type; 12302 msg_info.hdr.msg_type = 12303 CTL_MSG_MANAGE_TASKS; 12304 msg_info.hdr.original_sc = NULL; 12305 msg_info.hdr.serializing_sc = NULL; 12306#if 0 12307 printf("Sent Abort to other side\n"); 12308#endif 12309 if (CTL_HA_STATUS_SUCCESS != 12310 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12311 (void *)&msg_info, 12312 sizeof(msg_info), 0)) { 12313 } 12314 } 12315#if 0 12316 printf("ctl_abort_task: found I/O to abort\n"); 12317#endif 12318 break; 12319 } 12320 } 12321 } 12322 mtx_unlock(&lun->lun_lock); 12323 12324 if (found == 0) { 12325 /* 12326 * This isn't really an error. It's entirely possible for 12327 * the abort and command completion to cross on the wire. 12328 * This is more of an informative/diagnostic error. 12329 */ 12330#if 0 12331 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12332 "%d:%d:%d:%d tag %d type %d\n", 12333 io->io_hdr.nexus.initid.id, 12334 io->io_hdr.nexus.targ_port, 12335 io->io_hdr.nexus.targ_target.id, 12336 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12337 io->taskio.tag_type); 12338#endif 12339 } 12340 return (0); 12341} 12342 12343static void 12344ctl_run_task(union ctl_io *io) 12345{ 12346 struct ctl_softc *ctl_softc = control_softc; 12347 int retval = 1; 12348 const char *task_desc; 12349 12350 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12351 12352 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12353 ("ctl_run_task: Unextected io_type %d\n", 12354 io->io_hdr.io_type)); 12355 12356 task_desc = ctl_scsi_task_string(&io->taskio); 12357 if (task_desc != NULL) { 12358#ifdef NEEDTOPORT 12359 csevent_log(CSC_CTL | CSC_SHELF_SW | 12360 CTL_TASK_REPORT, 12361 csevent_LogType_Trace, 12362 csevent_Severity_Information, 12363 csevent_AlertLevel_Green, 12364 csevent_FRU_Firmware, 12365 csevent_FRU_Unknown, 12366 "CTL: received task: %s",task_desc); 12367#endif 12368 } else { 12369#ifdef NEEDTOPORT 12370 csevent_log(CSC_CTL | CSC_SHELF_SW | 12371 CTL_TASK_REPORT, 12372 csevent_LogType_Trace, 12373 csevent_Severity_Information, 12374 csevent_AlertLevel_Green, 12375 csevent_FRU_Firmware, 12376 csevent_FRU_Unknown, 12377 "CTL: received unknown task " 12378 "type: %d (%#x)", 12379 io->taskio.task_action, 12380 io->taskio.task_action); 12381#endif 12382 } 12383 switch (io->taskio.task_action) { 12384 case CTL_TASK_ABORT_TASK: 12385 retval = ctl_abort_task(io); 12386 break; 12387 case CTL_TASK_ABORT_TASK_SET: 12388 case CTL_TASK_CLEAR_TASK_SET: 12389 retval = ctl_abort_task_set(io); 12390 break; 12391 case CTL_TASK_CLEAR_ACA: 12392 break; 12393 case CTL_TASK_I_T_NEXUS_RESET: 12394 retval = ctl_i_t_nexus_reset(io); 12395 break; 12396 case CTL_TASK_LUN_RESET: { 12397 struct ctl_lun *lun; 12398 uint32_t targ_lun; 12399 12400 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12401 mtx_lock(&ctl_softc->ctl_lock); 12402 if ((targ_lun < CTL_MAX_LUNS) 12403 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12404 lun = ctl_softc->ctl_luns[targ_lun]; 12405 else { 12406 mtx_unlock(&ctl_softc->ctl_lock); 12407 retval = 1; 12408 break; 12409 } 12410 12411 if (!(io->io_hdr.flags & 12412 CTL_FLAG_FROM_OTHER_SC)) { 12413 union ctl_ha_msg msg_info; 12414 12415 io->io_hdr.flags |= 12416 CTL_FLAG_SENT_2OTHER_SC; 12417 msg_info.hdr.msg_type = 12418 CTL_MSG_MANAGE_TASKS; 12419 msg_info.hdr.nexus = io->io_hdr.nexus; 12420 msg_info.task.task_action = 12421 CTL_TASK_LUN_RESET; 12422 msg_info.hdr.original_sc = NULL; 12423 msg_info.hdr.serializing_sc = NULL; 12424 if (CTL_HA_STATUS_SUCCESS != 12425 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12426 (void *)&msg_info, 12427 sizeof(msg_info), 0)) { 12428 } 12429 } 12430 12431 retval = ctl_lun_reset(lun, io, 12432 CTL_UA_LUN_RESET); 12433 mtx_unlock(&ctl_softc->ctl_lock); 12434 break; 12435 } 12436 case CTL_TASK_TARGET_RESET: 12437 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12438 break; 12439 case CTL_TASK_BUS_RESET: 12440 retval = ctl_bus_reset(ctl_softc, io); 12441 break; 12442 case CTL_TASK_PORT_LOGIN: 12443 break; 12444 case CTL_TASK_PORT_LOGOUT: 12445 break; 12446 default: 12447 printf("ctl_run_task: got unknown task management event %d\n", 12448 io->taskio.task_action); 12449 break; 12450 } 12451 if (retval == 0) 12452 io->io_hdr.status = CTL_SUCCESS; 12453 else 12454 io->io_hdr.status = CTL_ERROR; 12455 ctl_done(io); 12456} 12457 12458/* 12459 * For HA operation. Handle commands that come in from the other 12460 * controller. 12461 */ 12462static void 12463ctl_handle_isc(union ctl_io *io) 12464{ 12465 int free_io; 12466 struct ctl_lun *lun; 12467 struct ctl_softc *ctl_softc; 12468 uint32_t targ_lun; 12469 12470 ctl_softc = control_softc; 12471 12472 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12473 lun = ctl_softc->ctl_luns[targ_lun]; 12474 12475 switch (io->io_hdr.msg_type) { 12476 case CTL_MSG_SERIALIZE: 12477 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12478 break; 12479 case CTL_MSG_R2R: { 12480 const struct ctl_cmd_entry *entry; 12481 12482 /* 12483 * This is only used in SER_ONLY mode. 12484 */ 12485 free_io = 0; 12486 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12487 mtx_lock(&lun->lun_lock); 12488 if (ctl_scsiio_lun_check(ctl_softc, lun, 12489 entry, (struct ctl_scsiio *)io) != 0) { 12490 mtx_unlock(&lun->lun_lock); 12491 ctl_done(io); 12492 break; 12493 } 12494 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12495 mtx_unlock(&lun->lun_lock); 12496 ctl_enqueue_rtr(io); 12497 break; 12498 } 12499 case CTL_MSG_FINISH_IO: 12500 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12501 free_io = 0; 12502 ctl_done(io); 12503 } else { 12504 free_io = 1; 12505 mtx_lock(&lun->lun_lock); 12506 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12507 ooa_links); 12508 ctl_check_blocked(lun); 12509 mtx_unlock(&lun->lun_lock); 12510 } 12511 break; 12512 case CTL_MSG_PERS_ACTION: 12513 ctl_hndl_per_res_out_on_other_sc( 12514 (union ctl_ha_msg *)&io->presio.pr_msg); 12515 free_io = 1; 12516 break; 12517 case CTL_MSG_BAD_JUJU: 12518 free_io = 0; 12519 ctl_done(io); 12520 break; 12521 case CTL_MSG_DATAMOVE: 12522 /* Only used in XFER mode */ 12523 free_io = 0; 12524 ctl_datamove_remote(io); 12525 break; 12526 case CTL_MSG_DATAMOVE_DONE: 12527 /* Only used in XFER mode */ 12528 free_io = 0; 12529 io->scsiio.be_move_done(io); 12530 break; 12531 default: 12532 free_io = 1; 12533 printf("%s: Invalid message type %d\n", 12534 __func__, io->io_hdr.msg_type); 12535 break; 12536 } 12537 if (free_io) 12538 ctl_free_io(io); 12539 12540} 12541 12542 12543/* 12544 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12545 * there is no match. 12546 */ 12547static ctl_lun_error_pattern 12548ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12549{ 12550 const struct ctl_cmd_entry *entry; 12551 ctl_lun_error_pattern filtered_pattern, pattern; 12552 12553 pattern = desc->error_pattern; 12554 12555 /* 12556 * XXX KDM we need more data passed into this function to match a 12557 * custom pattern, and we actually need to implement custom pattern 12558 * matching. 12559 */ 12560 if (pattern & CTL_LUN_PAT_CMD) 12561 return (CTL_LUN_PAT_CMD); 12562 12563 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12564 return (CTL_LUN_PAT_ANY); 12565 12566 entry = ctl_get_cmd_entry(ctsio, NULL); 12567 12568 filtered_pattern = entry->pattern & pattern; 12569 12570 /* 12571 * If the user requested specific flags in the pattern (e.g. 12572 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12573 * flags. 12574 * 12575 * If the user did not specify any flags, it doesn't matter whether 12576 * or not the command supports the flags. 12577 */ 12578 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12579 (pattern & ~CTL_LUN_PAT_MASK)) 12580 return (CTL_LUN_PAT_NONE); 12581 12582 /* 12583 * If the user asked for a range check, see if the requested LBA 12584 * range overlaps with this command's LBA range. 12585 */ 12586 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12587 uint64_t lba1; 12588 uint64_t len1; 12589 ctl_action action; 12590 int retval; 12591 12592 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12593 if (retval != 0) 12594 return (CTL_LUN_PAT_NONE); 12595 12596 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12597 desc->lba_range.len); 12598 /* 12599 * A "pass" means that the LBA ranges don't overlap, so 12600 * this doesn't match the user's range criteria. 12601 */ 12602 if (action == CTL_ACTION_PASS) 12603 return (CTL_LUN_PAT_NONE); 12604 } 12605 12606 return (filtered_pattern); 12607} 12608 12609static void 12610ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12611{ 12612 struct ctl_error_desc *desc, *desc2; 12613 12614 mtx_assert(&lun->lun_lock, MA_OWNED); 12615 12616 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12617 ctl_lun_error_pattern pattern; 12618 /* 12619 * Check to see whether this particular command matches 12620 * the pattern in the descriptor. 12621 */ 12622 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12623 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12624 continue; 12625 12626 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12627 case CTL_LUN_INJ_ABORTED: 12628 ctl_set_aborted(&io->scsiio); 12629 break; 12630 case CTL_LUN_INJ_MEDIUM_ERR: 12631 ctl_set_medium_error(&io->scsiio); 12632 break; 12633 case CTL_LUN_INJ_UA: 12634 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12635 * OCCURRED */ 12636 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12637 break; 12638 case CTL_LUN_INJ_CUSTOM: 12639 /* 12640 * We're assuming the user knows what he is doing. 12641 * Just copy the sense information without doing 12642 * checks. 12643 */ 12644 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12645 ctl_min(sizeof(desc->custom_sense), 12646 sizeof(io->scsiio.sense_data))); 12647 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12648 io->scsiio.sense_len = SSD_FULL_SIZE; 12649 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12650 break; 12651 case CTL_LUN_INJ_NONE: 12652 default: 12653 /* 12654 * If this is an error injection type we don't know 12655 * about, clear the continuous flag (if it is set) 12656 * so it will get deleted below. 12657 */ 12658 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12659 break; 12660 } 12661 /* 12662 * By default, each error injection action is a one-shot 12663 */ 12664 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12665 continue; 12666 12667 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12668 12669 free(desc, M_CTL); 12670 } 12671} 12672 12673#ifdef CTL_IO_DELAY 12674static void 12675ctl_datamove_timer_wakeup(void *arg) 12676{ 12677 union ctl_io *io; 12678 12679 io = (union ctl_io *)arg; 12680 12681 ctl_datamove(io); 12682} 12683#endif /* CTL_IO_DELAY */ 12684 12685void 12686ctl_datamove(union ctl_io *io) 12687{ 12688 void (*fe_datamove)(union ctl_io *io); 12689 12690 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12691 12692 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12693 12694#ifdef CTL_TIME_IO 12695 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12696 char str[256]; 12697 char path_str[64]; 12698 struct sbuf sb; 12699 12700 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12701 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12702 12703 sbuf_cat(&sb, path_str); 12704 switch (io->io_hdr.io_type) { 12705 case CTL_IO_SCSI: 12706 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12707 sbuf_printf(&sb, "\n"); 12708 sbuf_cat(&sb, path_str); 12709 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12710 io->scsiio.tag_num, io->scsiio.tag_type); 12711 break; 12712 case CTL_IO_TASK: 12713 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12714 "Tag Type: %d\n", io->taskio.task_action, 12715 io->taskio.tag_num, io->taskio.tag_type); 12716 break; 12717 default: 12718 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12719 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12720 break; 12721 } 12722 sbuf_cat(&sb, path_str); 12723 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12724 (intmax_t)time_uptime - io->io_hdr.start_time); 12725 sbuf_finish(&sb); 12726 printf("%s", sbuf_data(&sb)); 12727 } 12728#endif /* CTL_TIME_IO */ 12729 12730#ifdef CTL_IO_DELAY 12731 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12732 struct ctl_lun *lun; 12733 12734 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12735 12736 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12737 } else { 12738 struct ctl_lun *lun; 12739 12740 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12741 if ((lun != NULL) 12742 && (lun->delay_info.datamove_delay > 0)) { 12743 struct callout *callout; 12744 12745 callout = (struct callout *)&io->io_hdr.timer_bytes; 12746 callout_init(callout, /*mpsafe*/ 1); 12747 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12748 callout_reset(callout, 12749 lun->delay_info.datamove_delay * hz, 12750 ctl_datamove_timer_wakeup, io); 12751 if (lun->delay_info.datamove_type == 12752 CTL_DELAY_TYPE_ONESHOT) 12753 lun->delay_info.datamove_delay = 0; 12754 return; 12755 } 12756 } 12757#endif 12758 12759 /* 12760 * This command has been aborted. Set the port status, so we fail 12761 * the data move. 12762 */ 12763 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12764 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12765 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12766 io->io_hdr.nexus.targ_port, 12767 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12768 io->io_hdr.nexus.targ_lun); 12769 io->io_hdr.port_status = 31337; 12770 /* 12771 * Note that the backend, in this case, will get the 12772 * callback in its context. In other cases it may get 12773 * called in the frontend's interrupt thread context. 12774 */ 12775 io->scsiio.be_move_done(io); 12776 return; 12777 } 12778 12779 /* 12780 * If we're in XFER mode and this I/O is from the other shelf 12781 * controller, we need to send the DMA to the other side to 12782 * actually transfer the data to/from the host. In serialize only 12783 * mode the transfer happens below CTL and ctl_datamove() is only 12784 * called on the machine that originally received the I/O. 12785 */ 12786 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12787 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12788 union ctl_ha_msg msg; 12789 uint32_t sg_entries_sent; 12790 int do_sg_copy; 12791 int i; 12792 12793 memset(&msg, 0, sizeof(msg)); 12794 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12795 msg.hdr.original_sc = io->io_hdr.original_sc; 12796 msg.hdr.serializing_sc = io; 12797 msg.hdr.nexus = io->io_hdr.nexus; 12798 msg.dt.flags = io->io_hdr.flags; 12799 /* 12800 * We convert everything into a S/G list here. We can't 12801 * pass by reference, only by value between controllers. 12802 * So we can't pass a pointer to the S/G list, only as many 12803 * S/G entries as we can fit in here. If it's possible for 12804 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12805 * then we need to break this up into multiple transfers. 12806 */ 12807 if (io->scsiio.kern_sg_entries == 0) { 12808 msg.dt.kern_sg_entries = 1; 12809 /* 12810 * If this is in cached memory, flush the cache 12811 * before we send the DMA request to the other 12812 * controller. We want to do this in either the 12813 * read or the write case. The read case is 12814 * straightforward. In the write case, we want to 12815 * make sure nothing is in the local cache that 12816 * could overwrite the DMAed data. 12817 */ 12818 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12819 /* 12820 * XXX KDM use bus_dmamap_sync() here. 12821 */ 12822 } 12823 12824 /* 12825 * Convert to a physical address if this is a 12826 * virtual address. 12827 */ 12828 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12829 msg.dt.sg_list[0].addr = 12830 io->scsiio.kern_data_ptr; 12831 } else { 12832 /* 12833 * XXX KDM use busdma here! 12834 */ 12835#if 0 12836 msg.dt.sg_list[0].addr = (void *) 12837 vtophys(io->scsiio.kern_data_ptr); 12838#endif 12839 } 12840 12841 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12842 do_sg_copy = 0; 12843 } else { 12844 struct ctl_sg_entry *sgl; 12845 12846 do_sg_copy = 1; 12847 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12848 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12849 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12850 /* 12851 * XXX KDM use bus_dmamap_sync() here. 12852 */ 12853 } 12854 } 12855 12856 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12857 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12858 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12859 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12860 msg.dt.sg_sequence = 0; 12861 12862 /* 12863 * Loop until we've sent all of the S/G entries. On the 12864 * other end, we'll recompose these S/G entries into one 12865 * contiguous list before passing it to the 12866 */ 12867 for (sg_entries_sent = 0; sg_entries_sent < 12868 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12869 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12870 sizeof(msg.dt.sg_list[0])), 12871 msg.dt.kern_sg_entries - sg_entries_sent); 12872 12873 if (do_sg_copy != 0) { 12874 struct ctl_sg_entry *sgl; 12875 int j; 12876 12877 sgl = (struct ctl_sg_entry *) 12878 io->scsiio.kern_data_ptr; 12879 /* 12880 * If this is in cached memory, flush the cache 12881 * before we send the DMA request to the other 12882 * controller. We want to do this in either 12883 * the * read or the write case. The read 12884 * case is straightforward. In the write 12885 * case, we want to make sure nothing is 12886 * in the local cache that could overwrite 12887 * the DMAed data. 12888 */ 12889 12890 for (i = sg_entries_sent, j = 0; 12891 i < msg.dt.cur_sg_entries; i++, j++) { 12892 if ((io->io_hdr.flags & 12893 CTL_FLAG_NO_DATASYNC) == 0) { 12894 /* 12895 * XXX KDM use bus_dmamap_sync() 12896 */ 12897 } 12898 if ((io->io_hdr.flags & 12899 CTL_FLAG_BUS_ADDR) == 0) { 12900 /* 12901 * XXX KDM use busdma. 12902 */ 12903#if 0 12904 msg.dt.sg_list[j].addr =(void *) 12905 vtophys(sgl[i].addr); 12906#endif 12907 } else { 12908 msg.dt.sg_list[j].addr = 12909 sgl[i].addr; 12910 } 12911 msg.dt.sg_list[j].len = sgl[i].len; 12912 } 12913 } 12914 12915 sg_entries_sent += msg.dt.cur_sg_entries; 12916 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12917 msg.dt.sg_last = 1; 12918 else 12919 msg.dt.sg_last = 0; 12920 12921 /* 12922 * XXX KDM drop and reacquire the lock here? 12923 */ 12924 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12925 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12926 /* 12927 * XXX do something here. 12928 */ 12929 } 12930 12931 msg.dt.sent_sg_entries = sg_entries_sent; 12932 } 12933 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12934 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12935 ctl_failover_io(io, /*have_lock*/ 0); 12936 12937 } else { 12938 12939 /* 12940 * Lookup the fe_datamove() function for this particular 12941 * front end. 12942 */ 12943 fe_datamove = 12944 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12945 12946 fe_datamove(io); 12947 } 12948} 12949 12950static void 12951ctl_send_datamove_done(union ctl_io *io, int have_lock) 12952{ 12953 union ctl_ha_msg msg; 12954 int isc_status; 12955 12956 memset(&msg, 0, sizeof(msg)); 12957 12958 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12959 msg.hdr.original_sc = io; 12960 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12961 msg.hdr.nexus = io->io_hdr.nexus; 12962 msg.hdr.status = io->io_hdr.status; 12963 msg.scsi.tag_num = io->scsiio.tag_num; 12964 msg.scsi.tag_type = io->scsiio.tag_type; 12965 msg.scsi.scsi_status = io->scsiio.scsi_status; 12966 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12967 sizeof(io->scsiio.sense_data)); 12968 msg.scsi.sense_len = io->scsiio.sense_len; 12969 msg.scsi.sense_residual = io->scsiio.sense_residual; 12970 msg.scsi.fetd_status = io->io_hdr.port_status; 12971 msg.scsi.residual = io->scsiio.residual; 12972 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12973 12974 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12975 ctl_failover_io(io, /*have_lock*/ have_lock); 12976 return; 12977 } 12978 12979 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12980 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12981 /* XXX do something if this fails */ 12982 } 12983 12984} 12985 12986/* 12987 * The DMA to the remote side is done, now we need to tell the other side 12988 * we're done so it can continue with its data movement. 12989 */ 12990static void 12991ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12992{ 12993 union ctl_io *io; 12994 12995 io = rq->context; 12996 12997 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12998 printf("%s: ISC DMA write failed with error %d", __func__, 12999 rq->ret); 13000 ctl_set_internal_failure(&io->scsiio, 13001 /*sks_valid*/ 1, 13002 /*retry_count*/ rq->ret); 13003 } 13004 13005 ctl_dt_req_free(rq); 13006 13007 /* 13008 * In this case, we had to malloc the memory locally. Free it. 13009 */ 13010 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13011 int i; 13012 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13013 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13014 } 13015 /* 13016 * The data is in local and remote memory, so now we need to send 13017 * status (good or back) back to the other side. 13018 */ 13019 ctl_send_datamove_done(io, /*have_lock*/ 0); 13020} 13021 13022/* 13023 * We've moved the data from the host/controller into local memory. Now we 13024 * need to push it over to the remote controller's memory. 13025 */ 13026static int 13027ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13028{ 13029 int retval; 13030 13031 retval = 0; 13032 13033 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13034 ctl_datamove_remote_write_cb); 13035 13036 return (retval); 13037} 13038 13039static void 13040ctl_datamove_remote_write(union ctl_io *io) 13041{ 13042 int retval; 13043 void (*fe_datamove)(union ctl_io *io); 13044 13045 /* 13046 * - Get the data from the host/HBA into local memory. 13047 * - DMA memory from the local controller to the remote controller. 13048 * - Send status back to the remote controller. 13049 */ 13050 13051 retval = ctl_datamove_remote_sgl_setup(io); 13052 if (retval != 0) 13053 return; 13054 13055 /* Switch the pointer over so the FETD knows what to do */ 13056 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13057 13058 /* 13059 * Use a custom move done callback, since we need to send completion 13060 * back to the other controller, not to the backend on this side. 13061 */ 13062 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13063 13064 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13065 13066 fe_datamove(io); 13067 13068 return; 13069 13070} 13071 13072static int 13073ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13074{ 13075#if 0 13076 char str[256]; 13077 char path_str[64]; 13078 struct sbuf sb; 13079#endif 13080 13081 /* 13082 * In this case, we had to malloc the memory locally. Free it. 13083 */ 13084 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13085 int i; 13086 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13087 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13088 } 13089 13090#if 0 13091 scsi_path_string(io, path_str, sizeof(path_str)); 13092 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13093 sbuf_cat(&sb, path_str); 13094 scsi_command_string(&io->scsiio, NULL, &sb); 13095 sbuf_printf(&sb, "\n"); 13096 sbuf_cat(&sb, path_str); 13097 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13098 io->scsiio.tag_num, io->scsiio.tag_type); 13099 sbuf_cat(&sb, path_str); 13100 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13101 io->io_hdr.flags, io->io_hdr.status); 13102 sbuf_finish(&sb); 13103 printk("%s", sbuf_data(&sb)); 13104#endif 13105 13106 13107 /* 13108 * The read is done, now we need to send status (good or bad) back 13109 * to the other side. 13110 */ 13111 ctl_send_datamove_done(io, /*have_lock*/ 0); 13112 13113 return (0); 13114} 13115 13116static void 13117ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13118{ 13119 union ctl_io *io; 13120 void (*fe_datamove)(union ctl_io *io); 13121 13122 io = rq->context; 13123 13124 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13125 printf("%s: ISC DMA read failed with error %d", __func__, 13126 rq->ret); 13127 ctl_set_internal_failure(&io->scsiio, 13128 /*sks_valid*/ 1, 13129 /*retry_count*/ rq->ret); 13130 } 13131 13132 ctl_dt_req_free(rq); 13133 13134 /* Switch the pointer over so the FETD knows what to do */ 13135 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13136 13137 /* 13138 * Use a custom move done callback, since we need to send completion 13139 * back to the other controller, not to the backend on this side. 13140 */ 13141 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13142 13143 /* XXX KDM add checks like the ones in ctl_datamove? */ 13144 13145 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13146 13147 fe_datamove(io); 13148} 13149 13150static int 13151ctl_datamove_remote_sgl_setup(union ctl_io *io) 13152{ 13153 struct ctl_sg_entry *local_sglist, *remote_sglist; 13154 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13155 struct ctl_softc *softc; 13156 int retval; 13157 int i; 13158 13159 retval = 0; 13160 softc = control_softc; 13161 13162 local_sglist = io->io_hdr.local_sglist; 13163 local_dma_sglist = io->io_hdr.local_dma_sglist; 13164 remote_sglist = io->io_hdr.remote_sglist; 13165 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13166 13167 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13168 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13169 local_sglist[i].len = remote_sglist[i].len; 13170 13171 /* 13172 * XXX Detect the situation where the RS-level I/O 13173 * redirector on the other side has already read the 13174 * data off of the AOR RS on this side, and 13175 * transferred it to remote (mirror) memory on the 13176 * other side. Since we already have the data in 13177 * memory here, we just need to use it. 13178 * 13179 * XXX KDM this can probably be removed once we 13180 * get the cache device code in and take the 13181 * current AOR implementation out. 13182 */ 13183#ifdef NEEDTOPORT 13184 if ((remote_sglist[i].addr >= 13185 (void *)vtophys(softc->mirr->addr)) 13186 && (remote_sglist[i].addr < 13187 ((void *)vtophys(softc->mirr->addr) + 13188 CacheMirrorOffset))) { 13189 local_sglist[i].addr = remote_sglist[i].addr - 13190 CacheMirrorOffset; 13191 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13192 CTL_FLAG_DATA_IN) 13193 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13194 } else { 13195 local_sglist[i].addr = remote_sglist[i].addr + 13196 CacheMirrorOffset; 13197 } 13198#endif 13199#if 0 13200 printf("%s: local %p, remote %p, len %d\n", 13201 __func__, local_sglist[i].addr, 13202 remote_sglist[i].addr, local_sglist[i].len); 13203#endif 13204 } 13205 } else { 13206 uint32_t len_to_go; 13207 13208 /* 13209 * In this case, we don't have automatically allocated 13210 * memory for this I/O on this controller. This typically 13211 * happens with internal CTL I/O -- e.g. inquiry, mode 13212 * sense, etc. Anything coming from RAIDCore will have 13213 * a mirror area available. 13214 */ 13215 len_to_go = io->scsiio.kern_data_len; 13216 13217 /* 13218 * Clear the no datasync flag, we have to use malloced 13219 * buffers. 13220 */ 13221 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13222 13223 /* 13224 * The difficult thing here is that the size of the various 13225 * S/G segments may be different than the size from the 13226 * remote controller. That'll make it harder when DMAing 13227 * the data back to the other side. 13228 */ 13229 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13230 sizeof(io->io_hdr.remote_sglist[0])) && 13231 (len_to_go > 0); i++) { 13232 local_sglist[i].len = ctl_min(len_to_go, 131072); 13233 CTL_SIZE_8B(local_dma_sglist[i].len, 13234 local_sglist[i].len); 13235 local_sglist[i].addr = 13236 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13237 13238 local_dma_sglist[i].addr = local_sglist[i].addr; 13239 13240 if (local_sglist[i].addr == NULL) { 13241 int j; 13242 13243 printf("malloc failed for %zd bytes!", 13244 local_dma_sglist[i].len); 13245 for (j = 0; j < i; j++) { 13246 free(local_sglist[j].addr, M_CTL); 13247 } 13248 ctl_set_internal_failure(&io->scsiio, 13249 /*sks_valid*/ 1, 13250 /*retry_count*/ 4857); 13251 retval = 1; 13252 goto bailout_error; 13253 13254 } 13255 /* XXX KDM do we need a sync here? */ 13256 13257 len_to_go -= local_sglist[i].len; 13258 } 13259 /* 13260 * Reset the number of S/G entries accordingly. The 13261 * original number of S/G entries is available in 13262 * rem_sg_entries. 13263 */ 13264 io->scsiio.kern_sg_entries = i; 13265 13266#if 0 13267 printf("%s: kern_sg_entries = %d\n", __func__, 13268 io->scsiio.kern_sg_entries); 13269 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13270 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13271 local_sglist[i].addr, local_sglist[i].len, 13272 local_dma_sglist[i].len); 13273#endif 13274 } 13275 13276 13277 return (retval); 13278 13279bailout_error: 13280 13281 ctl_send_datamove_done(io, /*have_lock*/ 0); 13282 13283 return (retval); 13284} 13285 13286static int 13287ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13288 ctl_ha_dt_cb callback) 13289{ 13290 struct ctl_ha_dt_req *rq; 13291 struct ctl_sg_entry *remote_sglist, *local_sglist; 13292 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13293 uint32_t local_used, remote_used, total_used; 13294 int retval; 13295 int i, j; 13296 13297 retval = 0; 13298 13299 rq = ctl_dt_req_alloc(); 13300 13301 /* 13302 * If we failed to allocate the request, and if the DMA didn't fail 13303 * anyway, set busy status. This is just a resource allocation 13304 * failure. 13305 */ 13306 if ((rq == NULL) 13307 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13308 ctl_set_busy(&io->scsiio); 13309 13310 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13311 13312 if (rq != NULL) 13313 ctl_dt_req_free(rq); 13314 13315 /* 13316 * The data move failed. We need to return status back 13317 * to the other controller. No point in trying to DMA 13318 * data to the remote controller. 13319 */ 13320 13321 ctl_send_datamove_done(io, /*have_lock*/ 0); 13322 13323 retval = 1; 13324 13325 goto bailout; 13326 } 13327 13328 local_sglist = io->io_hdr.local_sglist; 13329 local_dma_sglist = io->io_hdr.local_dma_sglist; 13330 remote_sglist = io->io_hdr.remote_sglist; 13331 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13332 local_used = 0; 13333 remote_used = 0; 13334 total_used = 0; 13335 13336 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13337 rq->ret = CTL_HA_STATUS_SUCCESS; 13338 rq->context = io; 13339 callback(rq); 13340 goto bailout; 13341 } 13342 13343 /* 13344 * Pull/push the data over the wire from/to the other controller. 13345 * This takes into account the possibility that the local and 13346 * remote sglists may not be identical in terms of the size of 13347 * the elements and the number of elements. 13348 * 13349 * One fundamental assumption here is that the length allocated for 13350 * both the local and remote sglists is identical. Otherwise, we've 13351 * essentially got a coding error of some sort. 13352 */ 13353 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13354 int isc_ret; 13355 uint32_t cur_len, dma_length; 13356 uint8_t *tmp_ptr; 13357 13358 rq->id = CTL_HA_DATA_CTL; 13359 rq->command = command; 13360 rq->context = io; 13361 13362 /* 13363 * Both pointers should be aligned. But it is possible 13364 * that the allocation length is not. They should both 13365 * also have enough slack left over at the end, though, 13366 * to round up to the next 8 byte boundary. 13367 */ 13368 cur_len = ctl_min(local_sglist[i].len - local_used, 13369 remote_sglist[j].len - remote_used); 13370 13371 /* 13372 * In this case, we have a size issue and need to decrease 13373 * the size, except in the case where we actually have less 13374 * than 8 bytes left. In that case, we need to increase 13375 * the DMA length to get the last bit. 13376 */ 13377 if ((cur_len & 0x7) != 0) { 13378 if (cur_len > 0x7) { 13379 cur_len = cur_len - (cur_len & 0x7); 13380 dma_length = cur_len; 13381 } else { 13382 CTL_SIZE_8B(dma_length, cur_len); 13383 } 13384 13385 } else 13386 dma_length = cur_len; 13387 13388 /* 13389 * If we had to allocate memory for this I/O, instead of using 13390 * the non-cached mirror memory, we'll need to flush the cache 13391 * before trying to DMA to the other controller. 13392 * 13393 * We could end up doing this multiple times for the same 13394 * segment if we have a larger local segment than remote 13395 * segment. That shouldn't be an issue. 13396 */ 13397 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13398 /* 13399 * XXX KDM use bus_dmamap_sync() here. 13400 */ 13401 } 13402 13403 rq->size = dma_length; 13404 13405 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13406 tmp_ptr += local_used; 13407 13408 /* Use physical addresses when talking to ISC hardware */ 13409 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13410 /* XXX KDM use busdma */ 13411#if 0 13412 rq->local = vtophys(tmp_ptr); 13413#endif 13414 } else 13415 rq->local = tmp_ptr; 13416 13417 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13418 tmp_ptr += remote_used; 13419 rq->remote = tmp_ptr; 13420 13421 rq->callback = NULL; 13422 13423 local_used += cur_len; 13424 if (local_used >= local_sglist[i].len) { 13425 i++; 13426 local_used = 0; 13427 } 13428 13429 remote_used += cur_len; 13430 if (remote_used >= remote_sglist[j].len) { 13431 j++; 13432 remote_used = 0; 13433 } 13434 total_used += cur_len; 13435 13436 if (total_used >= io->scsiio.kern_data_len) 13437 rq->callback = callback; 13438 13439 if ((rq->size & 0x7) != 0) { 13440 printf("%s: warning: size %d is not on 8b boundary\n", 13441 __func__, rq->size); 13442 } 13443 if (((uintptr_t)rq->local & 0x7) != 0) { 13444 printf("%s: warning: local %p not on 8b boundary\n", 13445 __func__, rq->local); 13446 } 13447 if (((uintptr_t)rq->remote & 0x7) != 0) { 13448 printf("%s: warning: remote %p not on 8b boundary\n", 13449 __func__, rq->local); 13450 } 13451#if 0 13452 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13453 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13454 rq->local, rq->remote, rq->size); 13455#endif 13456 13457 isc_ret = ctl_dt_single(rq); 13458 if (isc_ret == CTL_HA_STATUS_WAIT) 13459 continue; 13460 13461 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13462 rq->ret = CTL_HA_STATUS_SUCCESS; 13463 } else { 13464 rq->ret = isc_ret; 13465 } 13466 callback(rq); 13467 goto bailout; 13468 } 13469 13470bailout: 13471 return (retval); 13472 13473} 13474 13475static void 13476ctl_datamove_remote_read(union ctl_io *io) 13477{ 13478 int retval; 13479 int i; 13480 13481 /* 13482 * This will send an error to the other controller in the case of a 13483 * failure. 13484 */ 13485 retval = ctl_datamove_remote_sgl_setup(io); 13486 if (retval != 0) 13487 return; 13488 13489 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13490 ctl_datamove_remote_read_cb); 13491 if ((retval != 0) 13492 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13493 /* 13494 * Make sure we free memory if there was an error.. The 13495 * ctl_datamove_remote_xfer() function will send the 13496 * datamove done message, or call the callback with an 13497 * error if there is a problem. 13498 */ 13499 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13500 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13501 } 13502 13503 return; 13504} 13505 13506/* 13507 * Process a datamove request from the other controller. This is used for 13508 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13509 * first. Once that is complete, the data gets DMAed into the remote 13510 * controller's memory. For reads, we DMA from the remote controller's 13511 * memory into our memory first, and then move it out to the FETD. 13512 */ 13513static void 13514ctl_datamove_remote(union ctl_io *io) 13515{ 13516 struct ctl_softc *softc; 13517 13518 softc = control_softc; 13519 13520 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13521 13522 /* 13523 * Note that we look for an aborted I/O here, but don't do some of 13524 * the other checks that ctl_datamove() normally does. 13525 * We don't need to run the datamove delay code, since that should 13526 * have been done if need be on the other controller. 13527 */ 13528 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13529 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13530 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13531 io->io_hdr.nexus.targ_port, 13532 io->io_hdr.nexus.targ_target.id, 13533 io->io_hdr.nexus.targ_lun); 13534 io->io_hdr.port_status = 31338; 13535 ctl_send_datamove_done(io, /*have_lock*/ 0); 13536 return; 13537 } 13538 13539 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13540 ctl_datamove_remote_write(io); 13541 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13542 ctl_datamove_remote_read(io); 13543 } else { 13544 union ctl_ha_msg msg; 13545 struct scsi_sense_data *sense; 13546 uint8_t sks[3]; 13547 int retry_count; 13548 13549 memset(&msg, 0, sizeof(msg)); 13550 13551 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13552 msg.hdr.status = CTL_SCSI_ERROR; 13553 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13554 13555 retry_count = 4243; 13556 13557 sense = &msg.scsi.sense_data; 13558 sks[0] = SSD_SCS_VALID; 13559 sks[1] = (retry_count >> 8) & 0xff; 13560 sks[2] = retry_count & 0xff; 13561 13562 /* "Internal target failure" */ 13563 scsi_set_sense_data(sense, 13564 /*sense_format*/ SSD_TYPE_NONE, 13565 /*current_error*/ 1, 13566 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13567 /*asc*/ 0x44, 13568 /*ascq*/ 0x00, 13569 /*type*/ SSD_ELEM_SKS, 13570 /*size*/ sizeof(sks), 13571 /*data*/ sks, 13572 SSD_ELEM_NONE); 13573 13574 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13575 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13576 ctl_failover_io(io, /*have_lock*/ 1); 13577 return; 13578 } 13579 13580 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13581 CTL_HA_STATUS_SUCCESS) { 13582 /* XXX KDM what to do if this fails? */ 13583 } 13584 return; 13585 } 13586 13587} 13588 13589static int 13590ctl_process_done(union ctl_io *io) 13591{ 13592 struct ctl_lun *lun; 13593 struct ctl_softc *ctl_softc; 13594 void (*fe_done)(union ctl_io *io); 13595 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13596 13597 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13598 13599 fe_done = 13600 control_softc->ctl_ports[targ_port]->fe_done; 13601 13602#ifdef CTL_TIME_IO 13603 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13604 char str[256]; 13605 char path_str[64]; 13606 struct sbuf sb; 13607 13608 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13609 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13610 13611 sbuf_cat(&sb, path_str); 13612 switch (io->io_hdr.io_type) { 13613 case CTL_IO_SCSI: 13614 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13615 sbuf_printf(&sb, "\n"); 13616 sbuf_cat(&sb, path_str); 13617 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13618 io->scsiio.tag_num, io->scsiio.tag_type); 13619 break; 13620 case CTL_IO_TASK: 13621 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13622 "Tag Type: %d\n", io->taskio.task_action, 13623 io->taskio.tag_num, io->taskio.tag_type); 13624 break; 13625 default: 13626 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13627 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13628 break; 13629 } 13630 sbuf_cat(&sb, path_str); 13631 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13632 (intmax_t)time_uptime - io->io_hdr.start_time); 13633 sbuf_finish(&sb); 13634 printf("%s", sbuf_data(&sb)); 13635 } 13636#endif /* CTL_TIME_IO */ 13637 13638 switch (io->io_hdr.io_type) { 13639 case CTL_IO_SCSI: 13640 break; 13641 case CTL_IO_TASK: 13642 if (bootverbose || verbose > 0) 13643 ctl_io_error_print(io, NULL); 13644 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13645 ctl_free_io(io); 13646 else 13647 fe_done(io); 13648 return (CTL_RETVAL_COMPLETE); 13649 break; 13650 default: 13651 printf("ctl_process_done: invalid io type %d\n", 13652 io->io_hdr.io_type); 13653 panic("ctl_process_done: invalid io type %d\n", 13654 io->io_hdr.io_type); 13655 break; /* NOTREACHED */ 13656 } 13657 13658 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13659 if (lun == NULL) { 13660 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13661 io->io_hdr.nexus.targ_mapped_lun)); 13662 fe_done(io); 13663 goto bailout; 13664 } 13665 ctl_softc = lun->ctl_softc; 13666 13667 mtx_lock(&lun->lun_lock); 13668 13669 /* 13670 * Check to see if we have any errors to inject here. We only 13671 * inject errors for commands that don't already have errors set. 13672 */ 13673 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13674 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13675 ctl_inject_error(lun, io); 13676 13677 /* 13678 * XXX KDM how do we treat commands that aren't completed 13679 * successfully? 13680 * 13681 * XXX KDM should we also track I/O latency? 13682 */ 13683 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13684 io->io_hdr.io_type == CTL_IO_SCSI) { 13685#ifdef CTL_TIME_IO 13686 struct bintime cur_bt; 13687#endif 13688 int type; 13689 13690 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13691 CTL_FLAG_DATA_IN) 13692 type = CTL_STATS_READ; 13693 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13694 CTL_FLAG_DATA_OUT) 13695 type = CTL_STATS_WRITE; 13696 else 13697 type = CTL_STATS_NO_IO; 13698 13699 lun->stats.ports[targ_port].bytes[type] += 13700 io->scsiio.kern_total_len; 13701 lun->stats.ports[targ_port].operations[type]++; 13702#ifdef CTL_TIME_IO 13703 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13704 &io->io_hdr.dma_bt); 13705 lun->stats.ports[targ_port].num_dmas[type] += 13706 io->io_hdr.num_dmas; 13707 getbintime(&cur_bt); 13708 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13709 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13710#endif 13711 } 13712 13713 /* 13714 * Remove this from the OOA queue. 13715 */ 13716 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13717 13718 /* 13719 * Run through the blocked queue on this LUN and see if anything 13720 * has become unblocked, now that this transaction is done. 13721 */ 13722 ctl_check_blocked(lun); 13723 13724 /* 13725 * If the LUN has been invalidated, free it if there is nothing 13726 * left on its OOA queue. 13727 */ 13728 if ((lun->flags & CTL_LUN_INVALID) 13729 && TAILQ_EMPTY(&lun->ooa_queue)) { 13730 mtx_unlock(&lun->lun_lock); 13731 mtx_lock(&ctl_softc->ctl_lock); 13732 ctl_free_lun(lun); 13733 mtx_unlock(&ctl_softc->ctl_lock); 13734 } else 13735 mtx_unlock(&lun->lun_lock); 13736 13737 /* 13738 * If this command has been aborted, make sure we set the status 13739 * properly. The FETD is responsible for freeing the I/O and doing 13740 * whatever it needs to do to clean up its state. 13741 */ 13742 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13743 ctl_set_task_aborted(&io->scsiio); 13744 13745 /* 13746 * We print out status for every task management command. For SCSI 13747 * commands, we filter out any unit attention errors; they happen 13748 * on every boot, and would clutter up the log. Note: task 13749 * management commands aren't printed here, they are printed above, 13750 * since they should never even make it down here. 13751 */ 13752 switch (io->io_hdr.io_type) { 13753 case CTL_IO_SCSI: { 13754 int error_code, sense_key, asc, ascq; 13755 13756 sense_key = 0; 13757 13758 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13759 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13760 /* 13761 * Since this is just for printing, no need to 13762 * show errors here. 13763 */ 13764 scsi_extract_sense_len(&io->scsiio.sense_data, 13765 io->scsiio.sense_len, 13766 &error_code, 13767 &sense_key, 13768 &asc, 13769 &ascq, 13770 /*show_errors*/ 0); 13771 } 13772 13773 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13774 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13775 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13776 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13777 13778 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13779 ctl_softc->skipped_prints++; 13780 } else { 13781 uint32_t skipped_prints; 13782 13783 skipped_prints = ctl_softc->skipped_prints; 13784 13785 ctl_softc->skipped_prints = 0; 13786 ctl_softc->last_print_jiffies = time_uptime; 13787 13788 if (skipped_prints > 0) { 13789#ifdef NEEDTOPORT 13790 csevent_log(CSC_CTL | CSC_SHELF_SW | 13791 CTL_ERROR_REPORT, 13792 csevent_LogType_Trace, 13793 csevent_Severity_Information, 13794 csevent_AlertLevel_Green, 13795 csevent_FRU_Firmware, 13796 csevent_FRU_Unknown, 13797 "High CTL error volume, %d prints " 13798 "skipped", skipped_prints); 13799#endif 13800 } 13801 if (bootverbose || verbose > 0) 13802 ctl_io_error_print(io, NULL); 13803 } 13804 } 13805 break; 13806 } 13807 case CTL_IO_TASK: 13808 if (bootverbose || verbose > 0) 13809 ctl_io_error_print(io, NULL); 13810 break; 13811 default: 13812 break; 13813 } 13814 13815 /* 13816 * Tell the FETD or the other shelf controller we're done with this 13817 * command. Note that only SCSI commands get to this point. Task 13818 * management commands are completed above. 13819 * 13820 * We only send status to the other controller if we're in XFER 13821 * mode. In SER_ONLY mode, the I/O is done on the controller that 13822 * received the I/O (from CTL's perspective), and so the status is 13823 * generated there. 13824 * 13825 * XXX KDM if we hold the lock here, we could cause a deadlock 13826 * if the frontend comes back in in this context to queue 13827 * something. 13828 */ 13829 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13830 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13831 union ctl_ha_msg msg; 13832 13833 memset(&msg, 0, sizeof(msg)); 13834 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13835 msg.hdr.original_sc = io->io_hdr.original_sc; 13836 msg.hdr.nexus = io->io_hdr.nexus; 13837 msg.hdr.status = io->io_hdr.status; 13838 msg.scsi.scsi_status = io->scsiio.scsi_status; 13839 msg.scsi.tag_num = io->scsiio.tag_num; 13840 msg.scsi.tag_type = io->scsiio.tag_type; 13841 msg.scsi.sense_len = io->scsiio.sense_len; 13842 msg.scsi.sense_residual = io->scsiio.sense_residual; 13843 msg.scsi.residual = io->scsiio.residual; 13844 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13845 sizeof(io->scsiio.sense_data)); 13846 /* 13847 * We copy this whether or not this is an I/O-related 13848 * command. Otherwise, we'd have to go and check to see 13849 * whether it's a read/write command, and it really isn't 13850 * worth it. 13851 */ 13852 memcpy(&msg.scsi.lbalen, 13853 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13854 sizeof(msg.scsi.lbalen)); 13855 13856 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13857 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13858 /* XXX do something here */ 13859 } 13860 13861 ctl_free_io(io); 13862 } else 13863 fe_done(io); 13864 13865bailout: 13866 13867 return (CTL_RETVAL_COMPLETE); 13868} 13869 13870#ifdef CTL_WITH_CA 13871/* 13872 * Front end should call this if it doesn't do autosense. When the request 13873 * sense comes back in from the initiator, we'll dequeue this and send it. 13874 */ 13875int 13876ctl_queue_sense(union ctl_io *io) 13877{ 13878 struct ctl_lun *lun; 13879 struct ctl_softc *ctl_softc; 13880 uint32_t initidx, targ_lun; 13881 13882 ctl_softc = control_softc; 13883 13884 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13885 13886 /* 13887 * LUN lookup will likely move to the ctl_work_thread() once we 13888 * have our new queueing infrastructure (that doesn't put things on 13889 * a per-LUN queue initially). That is so that we can handle 13890 * things like an INQUIRY to a LUN that we don't have enabled. We 13891 * can't deal with that right now. 13892 */ 13893 mtx_lock(&ctl_softc->ctl_lock); 13894 13895 /* 13896 * If we don't have a LUN for this, just toss the sense 13897 * information. 13898 */ 13899 targ_lun = io->io_hdr.nexus.targ_lun; 13900 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13901 if ((targ_lun < CTL_MAX_LUNS) 13902 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13903 lun = ctl_softc->ctl_luns[targ_lun]; 13904 else 13905 goto bailout; 13906 13907 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13908 13909 mtx_lock(&lun->lun_lock); 13910 /* 13911 * Already have CA set for this LUN...toss the sense information. 13912 */ 13913 if (ctl_is_set(lun->have_ca, initidx)) { 13914 mtx_unlock(&lun->lun_lock); 13915 goto bailout; 13916 } 13917 13918 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13919 ctl_min(sizeof(lun->pending_sense[initidx]), 13920 sizeof(io->scsiio.sense_data))); 13921 ctl_set_mask(lun->have_ca, initidx); 13922 mtx_unlock(&lun->lun_lock); 13923 13924bailout: 13925 mtx_unlock(&ctl_softc->ctl_lock); 13926 13927 ctl_free_io(io); 13928 13929 return (CTL_RETVAL_COMPLETE); 13930} 13931#endif 13932 13933/* 13934 * Primary command inlet from frontend ports. All SCSI and task I/O 13935 * requests must go through this function. 13936 */ 13937int 13938ctl_queue(union ctl_io *io) 13939{ 13940 struct ctl_softc *ctl_softc; 13941 13942 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13943 13944 ctl_softc = control_softc; 13945 13946#ifdef CTL_TIME_IO 13947 io->io_hdr.start_time = time_uptime; 13948 getbintime(&io->io_hdr.start_bt); 13949#endif /* CTL_TIME_IO */ 13950 13951 /* Map FE-specific LUN ID into global one. */ 13952 io->io_hdr.nexus.targ_mapped_lun = 13953 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13954 13955 switch (io->io_hdr.io_type) { 13956 case CTL_IO_SCSI: 13957 case CTL_IO_TASK: 13958 ctl_enqueue_incoming(io); 13959 break; 13960 default: 13961 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13962 return (EINVAL); 13963 } 13964 13965 return (CTL_RETVAL_COMPLETE); 13966} 13967 13968#ifdef CTL_IO_DELAY 13969static void 13970ctl_done_timer_wakeup(void *arg) 13971{ 13972 union ctl_io *io; 13973 13974 io = (union ctl_io *)arg; 13975 ctl_done(io); 13976} 13977#endif /* CTL_IO_DELAY */ 13978 13979void 13980ctl_done(union ctl_io *io) 13981{ 13982 struct ctl_softc *ctl_softc; 13983 13984 ctl_softc = control_softc; 13985 13986 /* 13987 * Enable this to catch duplicate completion issues. 13988 */ 13989#if 0 13990 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13991 printf("%s: type %d msg %d cdb %x iptl: " 13992 "%d:%d:%d:%d tag 0x%04x " 13993 "flag %#x status %x\n", 13994 __func__, 13995 io->io_hdr.io_type, 13996 io->io_hdr.msg_type, 13997 io->scsiio.cdb[0], 13998 io->io_hdr.nexus.initid.id, 13999 io->io_hdr.nexus.targ_port, 14000 io->io_hdr.nexus.targ_target.id, 14001 io->io_hdr.nexus.targ_lun, 14002 (io->io_hdr.io_type == 14003 CTL_IO_TASK) ? 14004 io->taskio.tag_num : 14005 io->scsiio.tag_num, 14006 io->io_hdr.flags, 14007 io->io_hdr.status); 14008 } else 14009 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14010#endif 14011 14012 /* 14013 * This is an internal copy of an I/O, and should not go through 14014 * the normal done processing logic. 14015 */ 14016 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14017 return; 14018 14019 /* 14020 * We need to send a msg to the serializing shelf to finish the IO 14021 * as well. We don't send a finish message to the other shelf if 14022 * this is a task management command. Task management commands 14023 * aren't serialized in the OOA queue, but rather just executed on 14024 * both shelf controllers for commands that originated on that 14025 * controller. 14026 */ 14027 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14028 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14029 union ctl_ha_msg msg_io; 14030 14031 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14032 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14033 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14034 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14035 } 14036 /* continue on to finish IO */ 14037 } 14038#ifdef CTL_IO_DELAY 14039 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14040 struct ctl_lun *lun; 14041 14042 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14043 14044 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14045 } else { 14046 struct ctl_lun *lun; 14047 14048 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14049 14050 if ((lun != NULL) 14051 && (lun->delay_info.done_delay > 0)) { 14052 struct callout *callout; 14053 14054 callout = (struct callout *)&io->io_hdr.timer_bytes; 14055 callout_init(callout, /*mpsafe*/ 1); 14056 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14057 callout_reset(callout, 14058 lun->delay_info.done_delay * hz, 14059 ctl_done_timer_wakeup, io); 14060 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14061 lun->delay_info.done_delay = 0; 14062 return; 14063 } 14064 } 14065#endif /* CTL_IO_DELAY */ 14066 14067 ctl_enqueue_done(io); 14068} 14069 14070int 14071ctl_isc(struct ctl_scsiio *ctsio) 14072{ 14073 struct ctl_lun *lun; 14074 int retval; 14075 14076 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14077 14078 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14079 14080 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14081 14082 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14083 14084 return (retval); 14085} 14086 14087 14088static void 14089ctl_work_thread(void *arg) 14090{ 14091 struct ctl_thread *thr = (struct ctl_thread *)arg; 14092 struct ctl_softc *softc = thr->ctl_softc; 14093 union ctl_io *io; 14094 int retval; 14095 14096 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14097 14098 for (;;) { 14099 retval = 0; 14100 14101 /* 14102 * We handle the queues in this order: 14103 * - ISC 14104 * - done queue (to free up resources, unblock other commands) 14105 * - RtR queue 14106 * - incoming queue 14107 * 14108 * If those queues are empty, we break out of the loop and 14109 * go to sleep. 14110 */ 14111 mtx_lock(&thr->queue_lock); 14112 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14113 if (io != NULL) { 14114 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14115 mtx_unlock(&thr->queue_lock); 14116 ctl_handle_isc(io); 14117 continue; 14118 } 14119 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14120 if (io != NULL) { 14121 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14122 /* clear any blocked commands, call fe_done */ 14123 mtx_unlock(&thr->queue_lock); 14124 retval = ctl_process_done(io); 14125 continue; 14126 } 14127 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14128 if (io != NULL) { 14129 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14130 mtx_unlock(&thr->queue_lock); 14131 if (io->io_hdr.io_type == CTL_IO_TASK) 14132 ctl_run_task(io); 14133 else 14134 ctl_scsiio_precheck(softc, &io->scsiio); 14135 continue; 14136 } 14137 if (!ctl_pause_rtr) { 14138 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14139 if (io != NULL) { 14140 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14141 mtx_unlock(&thr->queue_lock); 14142 retval = ctl_scsiio(&io->scsiio); 14143 if (retval != CTL_RETVAL_COMPLETE) 14144 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14145 continue; 14146 } 14147 } 14148 14149 /* Sleep until we have something to do. */ 14150 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14151 } 14152} 14153 14154static void 14155ctl_lun_thread(void *arg) 14156{ 14157 struct ctl_softc *softc = (struct ctl_softc *)arg; 14158 struct ctl_be_lun *be_lun; 14159 int retval; 14160 14161 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14162 14163 for (;;) { 14164 retval = 0; 14165 mtx_lock(&softc->ctl_lock); 14166 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14167 if (be_lun != NULL) { 14168 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14169 mtx_unlock(&softc->ctl_lock); 14170 ctl_create_lun(be_lun); 14171 continue; 14172 } 14173 14174 /* Sleep until we have something to do. */ 14175 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14176 PDROP | PRIBIO, "-", 0); 14177 } 14178} 14179 14180static void 14181ctl_enqueue_incoming(union ctl_io *io) 14182{ 14183 struct ctl_softc *softc = control_softc; 14184 struct ctl_thread *thr; 14185 u_int idx; 14186 14187 idx = (io->io_hdr.nexus.targ_port * 127 + 14188 io->io_hdr.nexus.initid.id) % worker_threads; 14189 thr = &softc->threads[idx]; 14190 mtx_lock(&thr->queue_lock); 14191 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14192 mtx_unlock(&thr->queue_lock); 14193 wakeup(thr); 14194} 14195 14196static void 14197ctl_enqueue_rtr(union ctl_io *io) 14198{ 14199 struct ctl_softc *softc = control_softc; 14200 struct ctl_thread *thr; 14201 14202 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14203 mtx_lock(&thr->queue_lock); 14204 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14205 mtx_unlock(&thr->queue_lock); 14206 wakeup(thr); 14207} 14208 14209static void 14210ctl_enqueue_done(union ctl_io *io) 14211{ 14212 struct ctl_softc *softc = control_softc; 14213 struct ctl_thread *thr; 14214 14215 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14216 mtx_lock(&thr->queue_lock); 14217 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14218 mtx_unlock(&thr->queue_lock); 14219 wakeup(thr); 14220} 14221 14222static void 14223ctl_enqueue_isc(union ctl_io *io) 14224{ 14225 struct ctl_softc *softc = control_softc; 14226 struct ctl_thread *thr; 14227 14228 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14229 mtx_lock(&thr->queue_lock); 14230 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14231 mtx_unlock(&thr->queue_lock); 14232 wakeup(thr); 14233} 14234 14235/* Initialization and failover */ 14236 14237void 14238ctl_init_isc_msg(void) 14239{ 14240 printf("CTL: Still calling this thing\n"); 14241} 14242 14243/* 14244 * Init component 14245 * Initializes component into configuration defined by bootMode 14246 * (see hasc-sv.c) 14247 * returns hasc_Status: 14248 * OK 14249 * ERROR - fatal error 14250 */ 14251static ctl_ha_comp_status 14252ctl_isc_init(struct ctl_ha_component *c) 14253{ 14254 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14255 14256 c->status = ret; 14257 return ret; 14258} 14259 14260/* Start component 14261 * Starts component in state requested. If component starts successfully, 14262 * it must set its own state to the requestrd state 14263 * When requested state is HASC_STATE_HA, the component may refine it 14264 * by adding _SLAVE or _MASTER flags. 14265 * Currently allowed state transitions are: 14266 * UNKNOWN->HA - initial startup 14267 * UNKNOWN->SINGLE - initial startup when no parter detected 14268 * HA->SINGLE - failover 14269 * returns ctl_ha_comp_status: 14270 * OK - component successfully started in requested state 14271 * FAILED - could not start the requested state, failover may 14272 * be possible 14273 * ERROR - fatal error detected, no future startup possible 14274 */ 14275static ctl_ha_comp_status 14276ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14277{ 14278 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14279 14280 printf("%s: go\n", __func__); 14281 14282 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14283 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14284 ctl_is_single = 0; 14285 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14286 != CTL_HA_STATUS_SUCCESS) { 14287 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14288 ret = CTL_HA_COMP_STATUS_ERROR; 14289 } 14290 } else if (CTL_HA_STATE_IS_HA(c->state) 14291 && CTL_HA_STATE_IS_SINGLE(state)){ 14292 // HA->SINGLE transition 14293 ctl_failover(); 14294 ctl_is_single = 1; 14295 } else { 14296 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14297 c->state, state); 14298 ret = CTL_HA_COMP_STATUS_ERROR; 14299 } 14300 if (CTL_HA_STATE_IS_SINGLE(state)) 14301 ctl_is_single = 1; 14302 14303 c->state = state; 14304 c->status = ret; 14305 return ret; 14306} 14307 14308/* 14309 * Quiesce component 14310 * The component must clear any error conditions (set status to OK) and 14311 * prepare itself to another Start call 14312 * returns ctl_ha_comp_status: 14313 * OK 14314 * ERROR 14315 */ 14316static ctl_ha_comp_status 14317ctl_isc_quiesce(struct ctl_ha_component *c) 14318{ 14319 int ret = CTL_HA_COMP_STATUS_OK; 14320 14321 ctl_pause_rtr = 1; 14322 c->status = ret; 14323 return ret; 14324} 14325 14326struct ctl_ha_component ctl_ha_component_ctlisc = 14327{ 14328 .name = "CTL ISC", 14329 .state = CTL_HA_STATE_UNKNOWN, 14330 .init = ctl_isc_init, 14331 .start = ctl_isc_start, 14332 .quiesce = ctl_isc_quiesce 14333}; 14334 14335/* 14336 * vim: ts=8 14337 */ 14338