ctl.c revision 272597
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 272597 2014-10-06 07:01:32Z 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.flags & CTL_FLAG_ABORT) == 0 && 5284 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5285 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5286 io->scsiio.io_cont(io); 5287 return; 5288 } 5289 /* 5290 * Since a configuration write can be done for commands that actually 5291 * have data allocated, like write buffer, and commands that have 5292 * no data, like start/stop unit, we need to check here. 5293 */ 5294 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5295 buf = io->scsiio.kern_data_ptr; 5296 else 5297 buf = NULL; 5298 ctl_done(io); 5299 if (buf) 5300 free(buf, M_CTL); 5301} 5302 5303/* 5304 * SCSI release command. 5305 */ 5306int 5307ctl_scsi_release(struct ctl_scsiio *ctsio) 5308{ 5309 int length, longid, thirdparty_id, resv_id; 5310 struct ctl_softc *ctl_softc; 5311 struct ctl_lun *lun; 5312 uint32_t residx; 5313 5314 length = 0; 5315 resv_id = 0; 5316 5317 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5318 5319 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5320 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5321 ctl_softc = control_softc; 5322 5323 switch (ctsio->cdb[0]) { 5324 case RELEASE_10: { 5325 struct scsi_release_10 *cdb; 5326 5327 cdb = (struct scsi_release_10 *)ctsio->cdb; 5328 5329 if (cdb->byte2 & SR10_LONGID) 5330 longid = 1; 5331 else 5332 thirdparty_id = cdb->thirdparty_id; 5333 5334 resv_id = cdb->resv_id; 5335 length = scsi_2btoul(cdb->length); 5336 break; 5337 } 5338 } 5339 5340 5341 /* 5342 * XXX KDM right now, we only support LUN reservation. We don't 5343 * support 3rd party reservations, or extent reservations, which 5344 * might actually need the parameter list. If we've gotten this 5345 * far, we've got a LUN reservation. Anything else got kicked out 5346 * above. So, according to SPC, ignore the length. 5347 */ 5348 length = 0; 5349 5350 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5351 && (length > 0)) { 5352 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5353 ctsio->kern_data_len = length; 5354 ctsio->kern_total_len = length; 5355 ctsio->kern_data_resid = 0; 5356 ctsio->kern_rel_offset = 0; 5357 ctsio->kern_sg_entries = 0; 5358 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5359 ctsio->be_move_done = ctl_config_move_done; 5360 ctl_datamove((union ctl_io *)ctsio); 5361 5362 return (CTL_RETVAL_COMPLETE); 5363 } 5364 5365 if (length > 0) 5366 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5367 5368 mtx_lock(&lun->lun_lock); 5369 5370 /* 5371 * According to SPC, it is not an error for an intiator to attempt 5372 * to release a reservation on a LUN that isn't reserved, or that 5373 * is reserved by another initiator. The reservation can only be 5374 * released, though, by the initiator who made it or by one of 5375 * several reset type events. 5376 */ 5377 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5378 lun->flags &= ~CTL_LUN_RESERVED; 5379 5380 mtx_unlock(&lun->lun_lock); 5381 5382 ctsio->scsi_status = SCSI_STATUS_OK; 5383 ctsio->io_hdr.status = CTL_SUCCESS; 5384 5385 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5386 free(ctsio->kern_data_ptr, M_CTL); 5387 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5388 } 5389 5390 ctl_done((union ctl_io *)ctsio); 5391 return (CTL_RETVAL_COMPLETE); 5392} 5393 5394int 5395ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5396{ 5397 int extent, thirdparty, longid; 5398 int resv_id, length; 5399 uint64_t thirdparty_id; 5400 struct ctl_softc *ctl_softc; 5401 struct ctl_lun *lun; 5402 uint32_t residx; 5403 5404 extent = 0; 5405 thirdparty = 0; 5406 longid = 0; 5407 resv_id = 0; 5408 length = 0; 5409 thirdparty_id = 0; 5410 5411 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5412 5413 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5414 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5415 ctl_softc = control_softc; 5416 5417 switch (ctsio->cdb[0]) { 5418 case RESERVE_10: { 5419 struct scsi_reserve_10 *cdb; 5420 5421 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5422 5423 if (cdb->byte2 & SR10_LONGID) 5424 longid = 1; 5425 else 5426 thirdparty_id = cdb->thirdparty_id; 5427 5428 resv_id = cdb->resv_id; 5429 length = scsi_2btoul(cdb->length); 5430 break; 5431 } 5432 } 5433 5434 /* 5435 * XXX KDM right now, we only support LUN reservation. We don't 5436 * support 3rd party reservations, or extent reservations, which 5437 * might actually need the parameter list. If we've gotten this 5438 * far, we've got a LUN reservation. Anything else got kicked out 5439 * above. So, according to SPC, ignore the length. 5440 */ 5441 length = 0; 5442 5443 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5444 && (length > 0)) { 5445 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5446 ctsio->kern_data_len = length; 5447 ctsio->kern_total_len = length; 5448 ctsio->kern_data_resid = 0; 5449 ctsio->kern_rel_offset = 0; 5450 ctsio->kern_sg_entries = 0; 5451 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5452 ctsio->be_move_done = ctl_config_move_done; 5453 ctl_datamove((union ctl_io *)ctsio); 5454 5455 return (CTL_RETVAL_COMPLETE); 5456 } 5457 5458 if (length > 0) 5459 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5460 5461 mtx_lock(&lun->lun_lock); 5462 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5463 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5464 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5465 goto bailout; 5466 } 5467 5468 lun->flags |= CTL_LUN_RESERVED; 5469 lun->res_idx = residx; 5470 5471 ctsio->scsi_status = SCSI_STATUS_OK; 5472 ctsio->io_hdr.status = CTL_SUCCESS; 5473 5474bailout: 5475 mtx_unlock(&lun->lun_lock); 5476 5477 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5478 free(ctsio->kern_data_ptr, M_CTL); 5479 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5480 } 5481 5482 ctl_done((union ctl_io *)ctsio); 5483 return (CTL_RETVAL_COMPLETE); 5484} 5485 5486int 5487ctl_start_stop(struct ctl_scsiio *ctsio) 5488{ 5489 struct scsi_start_stop_unit *cdb; 5490 struct ctl_lun *lun; 5491 struct ctl_softc *ctl_softc; 5492 int retval; 5493 5494 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5495 5496 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5497 ctl_softc = control_softc; 5498 retval = 0; 5499 5500 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5501 5502 /* 5503 * XXX KDM 5504 * We don't support the immediate bit on a stop unit. In order to 5505 * do that, we would need to code up a way to know that a stop is 5506 * pending, and hold off any new commands until it completes, one 5507 * way or another. Then we could accept or reject those commands 5508 * depending on its status. We would almost need to do the reverse 5509 * of what we do below for an immediate start -- return the copy of 5510 * the ctl_io to the FETD with status to send to the host (and to 5511 * free the copy!) and then free the original I/O once the stop 5512 * actually completes. That way, the OOA queue mechanism can work 5513 * to block commands that shouldn't proceed. Another alternative 5514 * would be to put the copy in the queue in place of the original, 5515 * and return the original back to the caller. That could be 5516 * slightly safer.. 5517 */ 5518 if ((cdb->byte2 & SSS_IMMED) 5519 && ((cdb->how & SSS_START) == 0)) { 5520 ctl_set_invalid_field(ctsio, 5521 /*sks_valid*/ 1, 5522 /*command*/ 1, 5523 /*field*/ 1, 5524 /*bit_valid*/ 1, 5525 /*bit*/ 0); 5526 ctl_done((union ctl_io *)ctsio); 5527 return (CTL_RETVAL_COMPLETE); 5528 } 5529 5530 if ((lun->flags & CTL_LUN_PR_RESERVED) 5531 && ((cdb->how & SSS_START)==0)) { 5532 uint32_t residx; 5533 5534 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5535 if (!lun->per_res[residx].registered 5536 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5537 5538 ctl_set_reservation_conflict(ctsio); 5539 ctl_done((union ctl_io *)ctsio); 5540 return (CTL_RETVAL_COMPLETE); 5541 } 5542 } 5543 5544 /* 5545 * If there is no backend on this device, we can't start or stop 5546 * it. In theory we shouldn't get any start/stop commands in the 5547 * first place at this level if the LUN doesn't have a backend. 5548 * That should get stopped by the command decode code. 5549 */ 5550 if (lun->backend == NULL) { 5551 ctl_set_invalid_opcode(ctsio); 5552 ctl_done((union ctl_io *)ctsio); 5553 return (CTL_RETVAL_COMPLETE); 5554 } 5555 5556 /* 5557 * XXX KDM Copan-specific offline behavior. 5558 * Figure out a reasonable way to port this? 5559 */ 5560#ifdef NEEDTOPORT 5561 mtx_lock(&lun->lun_lock); 5562 5563 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5564 && (lun->flags & CTL_LUN_OFFLINE)) { 5565 /* 5566 * If the LUN is offline, and the on/offline bit isn't set, 5567 * reject the start or stop. Otherwise, let it through. 5568 */ 5569 mtx_unlock(&lun->lun_lock); 5570 ctl_set_lun_not_ready(ctsio); 5571 ctl_done((union ctl_io *)ctsio); 5572 } else { 5573 mtx_unlock(&lun->lun_lock); 5574#endif /* NEEDTOPORT */ 5575 /* 5576 * This could be a start or a stop when we're online, 5577 * or a stop/offline or start/online. A start or stop when 5578 * we're offline is covered in the case above. 5579 */ 5580 /* 5581 * In the non-immediate case, we send the request to 5582 * the backend and return status to the user when 5583 * it is done. 5584 * 5585 * In the immediate case, we allocate a new ctl_io 5586 * to hold a copy of the request, and send that to 5587 * the backend. We then set good status on the 5588 * user's request and return it immediately. 5589 */ 5590 if (cdb->byte2 & SSS_IMMED) { 5591 union ctl_io *new_io; 5592 5593 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5594 if (new_io == NULL) { 5595 ctl_set_busy(ctsio); 5596 ctl_done((union ctl_io *)ctsio); 5597 } else { 5598 ctl_copy_io((union ctl_io *)ctsio, 5599 new_io); 5600 retval = lun->backend->config_write(new_io); 5601 ctl_set_success(ctsio); 5602 ctl_done((union ctl_io *)ctsio); 5603 } 5604 } else { 5605 retval = lun->backend->config_write( 5606 (union ctl_io *)ctsio); 5607 } 5608#ifdef NEEDTOPORT 5609 } 5610#endif 5611 return (retval); 5612} 5613 5614/* 5615 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5616 * we don't really do anything with the LBA and length fields if the user 5617 * passes them in. Instead we'll just flush out the cache for the entire 5618 * LUN. 5619 */ 5620int 5621ctl_sync_cache(struct ctl_scsiio *ctsio) 5622{ 5623 struct ctl_lun *lun; 5624 struct ctl_softc *ctl_softc; 5625 uint64_t starting_lba; 5626 uint32_t block_count; 5627 int retval; 5628 5629 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5630 5631 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5632 ctl_softc = control_softc; 5633 retval = 0; 5634 5635 switch (ctsio->cdb[0]) { 5636 case SYNCHRONIZE_CACHE: { 5637 struct scsi_sync_cache *cdb; 5638 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5639 5640 starting_lba = scsi_4btoul(cdb->begin_lba); 5641 block_count = scsi_2btoul(cdb->lb_count); 5642 break; 5643 } 5644 case SYNCHRONIZE_CACHE_16: { 5645 struct scsi_sync_cache_16 *cdb; 5646 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5647 5648 starting_lba = scsi_8btou64(cdb->begin_lba); 5649 block_count = scsi_4btoul(cdb->lb_count); 5650 break; 5651 } 5652 default: 5653 ctl_set_invalid_opcode(ctsio); 5654 ctl_done((union ctl_io *)ctsio); 5655 goto bailout; 5656 break; /* NOTREACHED */ 5657 } 5658 5659 /* 5660 * We check the LBA and length, but don't do anything with them. 5661 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5662 * get flushed. This check will just help satisfy anyone who wants 5663 * to see an error for an out of range LBA. 5664 */ 5665 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5666 ctl_set_lba_out_of_range(ctsio); 5667 ctl_done((union ctl_io *)ctsio); 5668 goto bailout; 5669 } 5670 5671 /* 5672 * If this LUN has no backend, we can't flush the cache anyway. 5673 */ 5674 if (lun->backend == NULL) { 5675 ctl_set_invalid_opcode(ctsio); 5676 ctl_done((union ctl_io *)ctsio); 5677 goto bailout; 5678 } 5679 5680 /* 5681 * Check to see whether we're configured to send the SYNCHRONIZE 5682 * CACHE command directly to the back end. 5683 */ 5684 mtx_lock(&lun->lun_lock); 5685 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5686 && (++(lun->sync_count) >= lun->sync_interval)) { 5687 lun->sync_count = 0; 5688 mtx_unlock(&lun->lun_lock); 5689 retval = lun->backend->config_write((union ctl_io *)ctsio); 5690 } else { 5691 mtx_unlock(&lun->lun_lock); 5692 ctl_set_success(ctsio); 5693 ctl_done((union ctl_io *)ctsio); 5694 } 5695 5696bailout: 5697 5698 return (retval); 5699} 5700 5701int 5702ctl_format(struct ctl_scsiio *ctsio) 5703{ 5704 struct scsi_format *cdb; 5705 struct ctl_lun *lun; 5706 struct ctl_softc *ctl_softc; 5707 int length, defect_list_len; 5708 5709 CTL_DEBUG_PRINT(("ctl_format\n")); 5710 5711 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5712 ctl_softc = control_softc; 5713 5714 cdb = (struct scsi_format *)ctsio->cdb; 5715 5716 length = 0; 5717 if (cdb->byte2 & SF_FMTDATA) { 5718 if (cdb->byte2 & SF_LONGLIST) 5719 length = sizeof(struct scsi_format_header_long); 5720 else 5721 length = sizeof(struct scsi_format_header_short); 5722 } 5723 5724 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5725 && (length > 0)) { 5726 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5727 ctsio->kern_data_len = length; 5728 ctsio->kern_total_len = length; 5729 ctsio->kern_data_resid = 0; 5730 ctsio->kern_rel_offset = 0; 5731 ctsio->kern_sg_entries = 0; 5732 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5733 ctsio->be_move_done = ctl_config_move_done; 5734 ctl_datamove((union ctl_io *)ctsio); 5735 5736 return (CTL_RETVAL_COMPLETE); 5737 } 5738 5739 defect_list_len = 0; 5740 5741 if (cdb->byte2 & SF_FMTDATA) { 5742 if (cdb->byte2 & SF_LONGLIST) { 5743 struct scsi_format_header_long *header; 5744 5745 header = (struct scsi_format_header_long *) 5746 ctsio->kern_data_ptr; 5747 5748 defect_list_len = scsi_4btoul(header->defect_list_len); 5749 if (defect_list_len != 0) { 5750 ctl_set_invalid_field(ctsio, 5751 /*sks_valid*/ 1, 5752 /*command*/ 0, 5753 /*field*/ 2, 5754 /*bit_valid*/ 0, 5755 /*bit*/ 0); 5756 goto bailout; 5757 } 5758 } else { 5759 struct scsi_format_header_short *header; 5760 5761 header = (struct scsi_format_header_short *) 5762 ctsio->kern_data_ptr; 5763 5764 defect_list_len = scsi_2btoul(header->defect_list_len); 5765 if (defect_list_len != 0) { 5766 ctl_set_invalid_field(ctsio, 5767 /*sks_valid*/ 1, 5768 /*command*/ 0, 5769 /*field*/ 2, 5770 /*bit_valid*/ 0, 5771 /*bit*/ 0); 5772 goto bailout; 5773 } 5774 } 5775 } 5776 5777 /* 5778 * The format command will clear out the "Medium format corrupted" 5779 * status if set by the configuration code. That status is really 5780 * just a way to notify the host that we have lost the media, and 5781 * get them to issue a command that will basically make them think 5782 * they're blowing away the media. 5783 */ 5784 mtx_lock(&lun->lun_lock); 5785 lun->flags &= ~CTL_LUN_INOPERABLE; 5786 mtx_unlock(&lun->lun_lock); 5787 5788 ctsio->scsi_status = SCSI_STATUS_OK; 5789 ctsio->io_hdr.status = CTL_SUCCESS; 5790bailout: 5791 5792 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5793 free(ctsio->kern_data_ptr, M_CTL); 5794 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5795 } 5796 5797 ctl_done((union ctl_io *)ctsio); 5798 return (CTL_RETVAL_COMPLETE); 5799} 5800 5801int 5802ctl_read_buffer(struct ctl_scsiio *ctsio) 5803{ 5804 struct scsi_read_buffer *cdb; 5805 struct ctl_lun *lun; 5806 int buffer_offset, len; 5807 static uint8_t descr[4]; 5808 static uint8_t echo_descr[4] = { 0 }; 5809 5810 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5811 5812 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5813 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5814 5815 if (lun->flags & CTL_LUN_PR_RESERVED) { 5816 uint32_t residx; 5817 5818 /* 5819 * XXX KDM need a lock here. 5820 */ 5821 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5822 if ((lun->res_type == SPR_TYPE_EX_AC 5823 && residx != lun->pr_res_idx) 5824 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5825 || lun->res_type == SPR_TYPE_EX_AC_AR) 5826 && !lun->per_res[residx].registered)) { 5827 ctl_set_reservation_conflict(ctsio); 5828 ctl_done((union ctl_io *)ctsio); 5829 return (CTL_RETVAL_COMPLETE); 5830 } 5831 } 5832 5833 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5834 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5835 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5836 ctl_set_invalid_field(ctsio, 5837 /*sks_valid*/ 1, 5838 /*command*/ 1, 5839 /*field*/ 1, 5840 /*bit_valid*/ 1, 5841 /*bit*/ 4); 5842 ctl_done((union ctl_io *)ctsio); 5843 return (CTL_RETVAL_COMPLETE); 5844 } 5845 5846 len = scsi_3btoul(cdb->length); 5847 buffer_offset = scsi_3btoul(cdb->offset); 5848 5849 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5850 ctl_set_invalid_field(ctsio, 5851 /*sks_valid*/ 1, 5852 /*command*/ 1, 5853 /*field*/ 6, 5854 /*bit_valid*/ 0, 5855 /*bit*/ 0); 5856 ctl_done((union ctl_io *)ctsio); 5857 return (CTL_RETVAL_COMPLETE); 5858 } 5859 5860 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5861 descr[0] = 0; 5862 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5863 ctsio->kern_data_ptr = descr; 5864 len = min(len, sizeof(descr)); 5865 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5866 ctsio->kern_data_ptr = echo_descr; 5867 len = min(len, sizeof(echo_descr)); 5868 } else 5869 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5870 ctsio->kern_data_len = len; 5871 ctsio->kern_total_len = len; 5872 ctsio->kern_data_resid = 0; 5873 ctsio->kern_rel_offset = 0; 5874 ctsio->kern_sg_entries = 0; 5875 ctsio->be_move_done = ctl_config_move_done; 5876 ctl_datamove((union ctl_io *)ctsio); 5877 5878 return (CTL_RETVAL_COMPLETE); 5879} 5880 5881int 5882ctl_write_buffer(struct ctl_scsiio *ctsio) 5883{ 5884 struct scsi_write_buffer *cdb; 5885 struct ctl_lun *lun; 5886 int buffer_offset, len; 5887 5888 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5889 5890 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5891 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5892 5893 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5894 ctl_set_invalid_field(ctsio, 5895 /*sks_valid*/ 1, 5896 /*command*/ 1, 5897 /*field*/ 1, 5898 /*bit_valid*/ 1, 5899 /*bit*/ 4); 5900 ctl_done((union ctl_io *)ctsio); 5901 return (CTL_RETVAL_COMPLETE); 5902 } 5903 5904 len = scsi_3btoul(cdb->length); 5905 buffer_offset = scsi_3btoul(cdb->offset); 5906 5907 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5908 ctl_set_invalid_field(ctsio, 5909 /*sks_valid*/ 1, 5910 /*command*/ 1, 5911 /*field*/ 6, 5912 /*bit_valid*/ 0, 5913 /*bit*/ 0); 5914 ctl_done((union ctl_io *)ctsio); 5915 return (CTL_RETVAL_COMPLETE); 5916 } 5917 5918 /* 5919 * If we've got a kernel request that hasn't been malloced yet, 5920 * malloc it and tell the caller the data buffer is here. 5921 */ 5922 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5923 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5924 ctsio->kern_data_len = len; 5925 ctsio->kern_total_len = len; 5926 ctsio->kern_data_resid = 0; 5927 ctsio->kern_rel_offset = 0; 5928 ctsio->kern_sg_entries = 0; 5929 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5930 ctsio->be_move_done = ctl_config_move_done; 5931 ctl_datamove((union ctl_io *)ctsio); 5932 5933 return (CTL_RETVAL_COMPLETE); 5934 } 5935 5936 ctl_done((union ctl_io *)ctsio); 5937 5938 return (CTL_RETVAL_COMPLETE); 5939} 5940 5941int 5942ctl_write_same(struct ctl_scsiio *ctsio) 5943{ 5944 struct ctl_lun *lun; 5945 struct ctl_lba_len_flags *lbalen; 5946 uint64_t lba; 5947 uint32_t num_blocks; 5948 int len, retval; 5949 uint8_t byte2; 5950 5951 retval = CTL_RETVAL_COMPLETE; 5952 5953 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5954 5955 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5956 5957 switch (ctsio->cdb[0]) { 5958 case WRITE_SAME_10: { 5959 struct scsi_write_same_10 *cdb; 5960 5961 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5962 5963 lba = scsi_4btoul(cdb->addr); 5964 num_blocks = scsi_2btoul(cdb->length); 5965 byte2 = cdb->byte2; 5966 break; 5967 } 5968 case WRITE_SAME_16: { 5969 struct scsi_write_same_16 *cdb; 5970 5971 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5972 5973 lba = scsi_8btou64(cdb->addr); 5974 num_blocks = scsi_4btoul(cdb->length); 5975 byte2 = cdb->byte2; 5976 break; 5977 } 5978 default: 5979 /* 5980 * We got a command we don't support. This shouldn't 5981 * happen, commands should be filtered out above us. 5982 */ 5983 ctl_set_invalid_opcode(ctsio); 5984 ctl_done((union ctl_io *)ctsio); 5985 5986 return (CTL_RETVAL_COMPLETE); 5987 break; /* NOTREACHED */ 5988 } 5989 5990 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5991 if ((byte2 & SWS_UNMAP) == 0 && 5992 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5993 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5994 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5995 ctl_done((union ctl_io *)ctsio); 5996 return (CTL_RETVAL_COMPLETE); 5997 } 5998 5999 /* 6000 * The first check is to make sure we're in bounds, the second 6001 * check is to catch wrap-around problems. If the lba + num blocks 6002 * is less than the lba, then we've wrapped around and the block 6003 * range is invalid anyway. 6004 */ 6005 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6006 || ((lba + num_blocks) < lba)) { 6007 ctl_set_lba_out_of_range(ctsio); 6008 ctl_done((union ctl_io *)ctsio); 6009 return (CTL_RETVAL_COMPLETE); 6010 } 6011 6012 /* Zero number of blocks means "to the last logical block" */ 6013 if (num_blocks == 0) { 6014 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6015 ctl_set_invalid_field(ctsio, 6016 /*sks_valid*/ 0, 6017 /*command*/ 1, 6018 /*field*/ 0, 6019 /*bit_valid*/ 0, 6020 /*bit*/ 0); 6021 ctl_done((union ctl_io *)ctsio); 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6025 } 6026 6027 len = lun->be_lun->blocksize; 6028 6029 /* 6030 * If we've got a kernel request that hasn't been malloced yet, 6031 * malloc it and tell the caller the data buffer is here. 6032 */ 6033 if ((byte2 & SWS_NDOB) == 0 && 6034 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6035 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6036 ctsio->kern_data_len = len; 6037 ctsio->kern_total_len = len; 6038 ctsio->kern_data_resid = 0; 6039 ctsio->kern_rel_offset = 0; 6040 ctsio->kern_sg_entries = 0; 6041 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6042 ctsio->be_move_done = ctl_config_move_done; 6043 ctl_datamove((union ctl_io *)ctsio); 6044 6045 return (CTL_RETVAL_COMPLETE); 6046 } 6047 6048 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6049 lbalen->lba = lba; 6050 lbalen->len = num_blocks; 6051 lbalen->flags = byte2; 6052 retval = lun->backend->config_write((union ctl_io *)ctsio); 6053 6054 return (retval); 6055} 6056 6057int 6058ctl_unmap(struct ctl_scsiio *ctsio) 6059{ 6060 struct ctl_lun *lun; 6061 struct scsi_unmap *cdb; 6062 struct ctl_ptr_len_flags *ptrlen; 6063 struct scsi_unmap_header *hdr; 6064 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6065 uint64_t lba; 6066 uint32_t num_blocks; 6067 int len, retval; 6068 uint8_t byte2; 6069 6070 retval = CTL_RETVAL_COMPLETE; 6071 6072 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6073 6074 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6075 cdb = (struct scsi_unmap *)ctsio->cdb; 6076 6077 len = scsi_2btoul(cdb->length); 6078 byte2 = cdb->byte2; 6079 6080 /* 6081 * If we've got a kernel request that hasn't been malloced yet, 6082 * malloc it and tell the caller the data buffer is here. 6083 */ 6084 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6085 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6086 ctsio->kern_data_len = len; 6087 ctsio->kern_total_len = len; 6088 ctsio->kern_data_resid = 0; 6089 ctsio->kern_rel_offset = 0; 6090 ctsio->kern_sg_entries = 0; 6091 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6092 ctsio->be_move_done = ctl_config_move_done; 6093 ctl_datamove((union ctl_io *)ctsio); 6094 6095 return (CTL_RETVAL_COMPLETE); 6096 } 6097 6098 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6099 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6100 if (len < sizeof (*hdr) || 6101 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6102 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6103 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6104 ctl_set_invalid_field(ctsio, 6105 /*sks_valid*/ 0, 6106 /*command*/ 0, 6107 /*field*/ 0, 6108 /*bit_valid*/ 0, 6109 /*bit*/ 0); 6110 ctl_done((union ctl_io *)ctsio); 6111 return (CTL_RETVAL_COMPLETE); 6112 } 6113 len = scsi_2btoul(hdr->desc_length); 6114 buf = (struct scsi_unmap_desc *)(hdr + 1); 6115 end = buf + len / sizeof(*buf); 6116 6117 endnz = buf; 6118 for (range = buf; range < end; range++) { 6119 lba = scsi_8btou64(range->lba); 6120 num_blocks = scsi_4btoul(range->length); 6121 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6122 || ((lba + num_blocks) < lba)) { 6123 ctl_set_lba_out_of_range(ctsio); 6124 ctl_done((union ctl_io *)ctsio); 6125 return (CTL_RETVAL_COMPLETE); 6126 } 6127 if (num_blocks != 0) 6128 endnz = range + 1; 6129 } 6130 6131 /* 6132 * Block backend can not handle zero last range. 6133 * Filter it out and return if there is nothing left. 6134 */ 6135 len = (uint8_t *)endnz - (uint8_t *)buf; 6136 if (len == 0) { 6137 ctl_set_success(ctsio); 6138 ctl_done((union ctl_io *)ctsio); 6139 return (CTL_RETVAL_COMPLETE); 6140 } 6141 6142 mtx_lock(&lun->lun_lock); 6143 ptrlen = (struct ctl_ptr_len_flags *) 6144 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6145 ptrlen->ptr = (void *)buf; 6146 ptrlen->len = len; 6147 ptrlen->flags = byte2; 6148 ctl_check_blocked(lun); 6149 mtx_unlock(&lun->lun_lock); 6150 6151 retval = lun->backend->config_write((union ctl_io *)ctsio); 6152 return (retval); 6153} 6154 6155/* 6156 * Note that this function currently doesn't actually do anything inside 6157 * CTL to enforce things if the DQue bit is turned on. 6158 * 6159 * Also note that this function can't be used in the default case, because 6160 * the DQue bit isn't set in the changeable mask for the control mode page 6161 * anyway. This is just here as an example for how to implement a page 6162 * handler, and a placeholder in case we want to allow the user to turn 6163 * tagged queueing on and off. 6164 * 6165 * The D_SENSE bit handling is functional, however, and will turn 6166 * descriptor sense on and off for a given LUN. 6167 */ 6168int 6169ctl_control_page_handler(struct ctl_scsiio *ctsio, 6170 struct ctl_page_index *page_index, uint8_t *page_ptr) 6171{ 6172 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6173 struct ctl_lun *lun; 6174 struct ctl_softc *softc; 6175 int set_ua; 6176 uint32_t initidx; 6177 6178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6179 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6180 set_ua = 0; 6181 6182 user_cp = (struct scsi_control_page *)page_ptr; 6183 current_cp = (struct scsi_control_page *) 6184 (page_index->page_data + (page_index->page_len * 6185 CTL_PAGE_CURRENT)); 6186 saved_cp = (struct scsi_control_page *) 6187 (page_index->page_data + (page_index->page_len * 6188 CTL_PAGE_SAVED)); 6189 6190 softc = control_softc; 6191 6192 mtx_lock(&lun->lun_lock); 6193 if (((current_cp->rlec & SCP_DSENSE) == 0) 6194 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6195 /* 6196 * Descriptor sense is currently turned off and the user 6197 * wants to turn it on. 6198 */ 6199 current_cp->rlec |= SCP_DSENSE; 6200 saved_cp->rlec |= SCP_DSENSE; 6201 lun->flags |= CTL_LUN_SENSE_DESC; 6202 set_ua = 1; 6203 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6204 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6205 /* 6206 * Descriptor sense is currently turned on, and the user 6207 * wants to turn it off. 6208 */ 6209 current_cp->rlec &= ~SCP_DSENSE; 6210 saved_cp->rlec &= ~SCP_DSENSE; 6211 lun->flags &= ~CTL_LUN_SENSE_DESC; 6212 set_ua = 1; 6213 } 6214 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6215 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6216 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6217 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6218 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6219 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6220 set_ua = 1; 6221 } 6222 if (set_ua != 0) { 6223 int i; 6224 /* 6225 * Let other initiators know that the mode 6226 * parameters for this LUN have changed. 6227 */ 6228 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6229 if (i == initidx) 6230 continue; 6231 6232 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6233 } 6234 } 6235 mtx_unlock(&lun->lun_lock); 6236 6237 return (0); 6238} 6239 6240int 6241ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6242 struct ctl_page_index *page_index, uint8_t *page_ptr) 6243{ 6244 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6245 struct ctl_lun *lun; 6246 int set_ua; 6247 uint32_t initidx; 6248 6249 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6250 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6251 set_ua = 0; 6252 6253 user_cp = (struct scsi_caching_page *)page_ptr; 6254 current_cp = (struct scsi_caching_page *) 6255 (page_index->page_data + (page_index->page_len * 6256 CTL_PAGE_CURRENT)); 6257 saved_cp = (struct scsi_caching_page *) 6258 (page_index->page_data + (page_index->page_len * 6259 CTL_PAGE_SAVED)); 6260 6261 mtx_lock(&lun->lun_lock); 6262 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6263 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6264 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6265 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6266 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6267 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6268 set_ua = 1; 6269 } 6270 if (set_ua != 0) { 6271 int i; 6272 /* 6273 * Let other initiators know that the mode 6274 * parameters for this LUN have changed. 6275 */ 6276 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6277 if (i == initidx) 6278 continue; 6279 6280 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6281 } 6282 } 6283 mtx_unlock(&lun->lun_lock); 6284 6285 return (0); 6286} 6287 6288int 6289ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6290 struct ctl_page_index *page_index, uint8_t *page_ptr) 6291{ 6292 return (0); 6293} 6294 6295int 6296ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6297 struct ctl_page_index *page_index, int pc) 6298{ 6299 struct copan_power_subpage *page; 6300 6301 page = (struct copan_power_subpage *)page_index->page_data + 6302 (page_index->page_len * pc); 6303 6304 switch (pc) { 6305 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6306 /* 6307 * We don't update the changable bits for this page. 6308 */ 6309 break; 6310 case SMS_PAGE_CTRL_CURRENT >> 6: 6311 case SMS_PAGE_CTRL_DEFAULT >> 6: 6312 case SMS_PAGE_CTRL_SAVED >> 6: 6313#ifdef NEEDTOPORT 6314 ctl_update_power_subpage(page); 6315#endif 6316 break; 6317 default: 6318#ifdef NEEDTOPORT 6319 EPRINT(0, "Invalid PC %d!!", pc); 6320#endif 6321 break; 6322 } 6323 return (0); 6324} 6325 6326 6327int 6328ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6329 struct ctl_page_index *page_index, uint8_t *page_ptr) 6330{ 6331 struct copan_aps_subpage *user_sp; 6332 struct copan_aps_subpage *current_sp; 6333 union ctl_modepage_info *modepage_info; 6334 struct ctl_softc *softc; 6335 struct ctl_lun *lun; 6336 int retval; 6337 6338 retval = CTL_RETVAL_COMPLETE; 6339 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6340 (page_index->page_len * CTL_PAGE_CURRENT)); 6341 softc = control_softc; 6342 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6343 6344 user_sp = (struct copan_aps_subpage *)page_ptr; 6345 6346 modepage_info = (union ctl_modepage_info *) 6347 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6348 6349 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6350 modepage_info->header.subpage = page_index->subpage; 6351 modepage_info->aps.lock_active = user_sp->lock_active; 6352 6353 mtx_lock(&softc->ctl_lock); 6354 6355 /* 6356 * If there is a request to lock the LUN and another LUN is locked 6357 * this is an error. If the requested LUN is already locked ignore 6358 * the request. If no LUN is locked attempt to lock it. 6359 * if there is a request to unlock the LUN and the LUN is currently 6360 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6361 * if another LUN is locked or no LUN is locked. 6362 */ 6363 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6364 if (softc->aps_locked_lun == lun->lun) { 6365 /* 6366 * This LUN is already locked, so we're done. 6367 */ 6368 retval = CTL_RETVAL_COMPLETE; 6369 } else if (softc->aps_locked_lun == 0) { 6370 /* 6371 * No one has the lock, pass the request to the 6372 * backend. 6373 */ 6374 retval = lun->backend->config_write( 6375 (union ctl_io *)ctsio); 6376 } else { 6377 /* 6378 * Someone else has the lock, throw out the request. 6379 */ 6380 ctl_set_already_locked(ctsio); 6381 free(ctsio->kern_data_ptr, M_CTL); 6382 ctl_done((union ctl_io *)ctsio); 6383 6384 /* 6385 * Set the return value so that ctl_do_mode_select() 6386 * won't try to complete the command. We already 6387 * completed it here. 6388 */ 6389 retval = CTL_RETVAL_ERROR; 6390 } 6391 } else if (softc->aps_locked_lun == lun->lun) { 6392 /* 6393 * This LUN is locked, so pass the unlock request to the 6394 * backend. 6395 */ 6396 retval = lun->backend->config_write((union ctl_io *)ctsio); 6397 } 6398 mtx_unlock(&softc->ctl_lock); 6399 6400 return (retval); 6401} 6402 6403int 6404ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6405 struct ctl_page_index *page_index, 6406 uint8_t *page_ptr) 6407{ 6408 uint8_t *c; 6409 int i; 6410 6411 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6412 ctl_time_io_secs = 6413 (c[0] << 8) | 6414 (c[1] << 0) | 6415 0; 6416 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6417 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6418 printf("page data:"); 6419 for (i=0; i<8; i++) 6420 printf(" %.2x",page_ptr[i]); 6421 printf("\n"); 6422 return (0); 6423} 6424 6425int 6426ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6427 struct ctl_page_index *page_index, 6428 int pc) 6429{ 6430 struct copan_debugconf_subpage *page; 6431 6432 page = (struct copan_debugconf_subpage *)page_index->page_data + 6433 (page_index->page_len * pc); 6434 6435 switch (pc) { 6436 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6437 case SMS_PAGE_CTRL_DEFAULT >> 6: 6438 case SMS_PAGE_CTRL_SAVED >> 6: 6439 /* 6440 * We don't update the changable or default bits for this page. 6441 */ 6442 break; 6443 case SMS_PAGE_CTRL_CURRENT >> 6: 6444 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6445 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6446 break; 6447 default: 6448#ifdef NEEDTOPORT 6449 EPRINT(0, "Invalid PC %d!!", pc); 6450#endif /* NEEDTOPORT */ 6451 break; 6452 } 6453 return (0); 6454} 6455 6456 6457static int 6458ctl_do_mode_select(union ctl_io *io) 6459{ 6460 struct scsi_mode_page_header *page_header; 6461 struct ctl_page_index *page_index; 6462 struct ctl_scsiio *ctsio; 6463 int control_dev, page_len; 6464 int page_len_offset, page_len_size; 6465 union ctl_modepage_info *modepage_info; 6466 struct ctl_lun *lun; 6467 int *len_left, *len_used; 6468 int retval, i; 6469 6470 ctsio = &io->scsiio; 6471 page_index = NULL; 6472 page_len = 0; 6473 retval = CTL_RETVAL_COMPLETE; 6474 6475 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6476 6477 if (lun->be_lun->lun_type != T_DIRECT) 6478 control_dev = 1; 6479 else 6480 control_dev = 0; 6481 6482 modepage_info = (union ctl_modepage_info *) 6483 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6484 len_left = &modepage_info->header.len_left; 6485 len_used = &modepage_info->header.len_used; 6486 6487do_next_page: 6488 6489 page_header = (struct scsi_mode_page_header *) 6490 (ctsio->kern_data_ptr + *len_used); 6491 6492 if (*len_left == 0) { 6493 free(ctsio->kern_data_ptr, M_CTL); 6494 ctl_set_success(ctsio); 6495 ctl_done((union ctl_io *)ctsio); 6496 return (CTL_RETVAL_COMPLETE); 6497 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6498 6499 free(ctsio->kern_data_ptr, M_CTL); 6500 ctl_set_param_len_error(ctsio); 6501 ctl_done((union ctl_io *)ctsio); 6502 return (CTL_RETVAL_COMPLETE); 6503 6504 } else if ((page_header->page_code & SMPH_SPF) 6505 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6506 6507 free(ctsio->kern_data_ptr, M_CTL); 6508 ctl_set_param_len_error(ctsio); 6509 ctl_done((union ctl_io *)ctsio); 6510 return (CTL_RETVAL_COMPLETE); 6511 } 6512 6513 6514 /* 6515 * XXX KDM should we do something with the block descriptor? 6516 */ 6517 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6518 6519 if ((control_dev != 0) 6520 && (lun->mode_pages.index[i].page_flags & 6521 CTL_PAGE_FLAG_DISK_ONLY)) 6522 continue; 6523 6524 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6525 (page_header->page_code & SMPH_PC_MASK)) 6526 continue; 6527 6528 /* 6529 * If neither page has a subpage code, then we've got a 6530 * match. 6531 */ 6532 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6533 && ((page_header->page_code & SMPH_SPF) == 0)) { 6534 page_index = &lun->mode_pages.index[i]; 6535 page_len = page_header->page_length; 6536 break; 6537 } 6538 6539 /* 6540 * If both pages have subpages, then the subpage numbers 6541 * have to match. 6542 */ 6543 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6544 && (page_header->page_code & SMPH_SPF)) { 6545 struct scsi_mode_page_header_sp *sph; 6546 6547 sph = (struct scsi_mode_page_header_sp *)page_header; 6548 6549 if (lun->mode_pages.index[i].subpage == 6550 sph->subpage) { 6551 page_index = &lun->mode_pages.index[i]; 6552 page_len = scsi_2btoul(sph->page_length); 6553 break; 6554 } 6555 } 6556 } 6557 6558 /* 6559 * If we couldn't find the page, or if we don't have a mode select 6560 * handler for it, send back an error to the user. 6561 */ 6562 if ((page_index == NULL) 6563 || (page_index->select_handler == NULL)) { 6564 ctl_set_invalid_field(ctsio, 6565 /*sks_valid*/ 1, 6566 /*command*/ 0, 6567 /*field*/ *len_used, 6568 /*bit_valid*/ 0, 6569 /*bit*/ 0); 6570 free(ctsio->kern_data_ptr, M_CTL); 6571 ctl_done((union ctl_io *)ctsio); 6572 return (CTL_RETVAL_COMPLETE); 6573 } 6574 6575 if (page_index->page_code & SMPH_SPF) { 6576 page_len_offset = 2; 6577 page_len_size = 2; 6578 } else { 6579 page_len_size = 1; 6580 page_len_offset = 1; 6581 } 6582 6583 /* 6584 * If the length the initiator gives us isn't the one we specify in 6585 * the mode page header, or if they didn't specify enough data in 6586 * the CDB to avoid truncating this page, kick out the request. 6587 */ 6588 if ((page_len != (page_index->page_len - page_len_offset - 6589 page_len_size)) 6590 || (*len_left < page_index->page_len)) { 6591 6592 6593 ctl_set_invalid_field(ctsio, 6594 /*sks_valid*/ 1, 6595 /*command*/ 0, 6596 /*field*/ *len_used + page_len_offset, 6597 /*bit_valid*/ 0, 6598 /*bit*/ 0); 6599 free(ctsio->kern_data_ptr, M_CTL); 6600 ctl_done((union ctl_io *)ctsio); 6601 return (CTL_RETVAL_COMPLETE); 6602 } 6603 6604 /* 6605 * Run through the mode page, checking to make sure that the bits 6606 * the user changed are actually legal for him to change. 6607 */ 6608 for (i = 0; i < page_index->page_len; i++) { 6609 uint8_t *user_byte, *change_mask, *current_byte; 6610 int bad_bit; 6611 int j; 6612 6613 user_byte = (uint8_t *)page_header + i; 6614 change_mask = page_index->page_data + 6615 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6616 current_byte = page_index->page_data + 6617 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6618 6619 /* 6620 * Check to see whether the user set any bits in this byte 6621 * that he is not allowed to set. 6622 */ 6623 if ((*user_byte & ~(*change_mask)) == 6624 (*current_byte & ~(*change_mask))) 6625 continue; 6626 6627 /* 6628 * Go through bit by bit to determine which one is illegal. 6629 */ 6630 bad_bit = 0; 6631 for (j = 7; j >= 0; j--) { 6632 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6633 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6634 bad_bit = i; 6635 break; 6636 } 6637 } 6638 ctl_set_invalid_field(ctsio, 6639 /*sks_valid*/ 1, 6640 /*command*/ 0, 6641 /*field*/ *len_used + i, 6642 /*bit_valid*/ 1, 6643 /*bit*/ bad_bit); 6644 free(ctsio->kern_data_ptr, M_CTL); 6645 ctl_done((union ctl_io *)ctsio); 6646 return (CTL_RETVAL_COMPLETE); 6647 } 6648 6649 /* 6650 * Decrement these before we call the page handler, since we may 6651 * end up getting called back one way or another before the handler 6652 * returns to this context. 6653 */ 6654 *len_left -= page_index->page_len; 6655 *len_used += page_index->page_len; 6656 6657 retval = page_index->select_handler(ctsio, page_index, 6658 (uint8_t *)page_header); 6659 6660 /* 6661 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6662 * wait until this queued command completes to finish processing 6663 * the mode page. If it returns anything other than 6664 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6665 * already set the sense information, freed the data pointer, and 6666 * completed the io for us. 6667 */ 6668 if (retval != CTL_RETVAL_COMPLETE) 6669 goto bailout_no_done; 6670 6671 /* 6672 * If the initiator sent us more than one page, parse the next one. 6673 */ 6674 if (*len_left > 0) 6675 goto do_next_page; 6676 6677 ctl_set_success(ctsio); 6678 free(ctsio->kern_data_ptr, M_CTL); 6679 ctl_done((union ctl_io *)ctsio); 6680 6681bailout_no_done: 6682 6683 return (CTL_RETVAL_COMPLETE); 6684 6685} 6686 6687int 6688ctl_mode_select(struct ctl_scsiio *ctsio) 6689{ 6690 int param_len, pf, sp; 6691 int header_size, bd_len; 6692 int len_left, len_used; 6693 struct ctl_page_index *page_index; 6694 struct ctl_lun *lun; 6695 int control_dev, page_len; 6696 union ctl_modepage_info *modepage_info; 6697 int retval; 6698 6699 pf = 0; 6700 sp = 0; 6701 page_len = 0; 6702 len_used = 0; 6703 len_left = 0; 6704 retval = 0; 6705 bd_len = 0; 6706 page_index = NULL; 6707 6708 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6709 6710 if (lun->be_lun->lun_type != T_DIRECT) 6711 control_dev = 1; 6712 else 6713 control_dev = 0; 6714 6715 switch (ctsio->cdb[0]) { 6716 case MODE_SELECT_6: { 6717 struct scsi_mode_select_6 *cdb; 6718 6719 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6720 6721 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6722 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6723 6724 param_len = cdb->length; 6725 header_size = sizeof(struct scsi_mode_header_6); 6726 break; 6727 } 6728 case MODE_SELECT_10: { 6729 struct scsi_mode_select_10 *cdb; 6730 6731 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6732 6733 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6734 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6735 6736 param_len = scsi_2btoul(cdb->length); 6737 header_size = sizeof(struct scsi_mode_header_10); 6738 break; 6739 } 6740 default: 6741 ctl_set_invalid_opcode(ctsio); 6742 ctl_done((union ctl_io *)ctsio); 6743 return (CTL_RETVAL_COMPLETE); 6744 break; /* NOTREACHED */ 6745 } 6746 6747 /* 6748 * From SPC-3: 6749 * "A parameter list length of zero indicates that the Data-Out Buffer 6750 * shall be empty. This condition shall not be considered as an error." 6751 */ 6752 if (param_len == 0) { 6753 ctl_set_success(ctsio); 6754 ctl_done((union ctl_io *)ctsio); 6755 return (CTL_RETVAL_COMPLETE); 6756 } 6757 6758 /* 6759 * Since we'll hit this the first time through, prior to 6760 * allocation, we don't need to free a data buffer here. 6761 */ 6762 if (param_len < header_size) { 6763 ctl_set_param_len_error(ctsio); 6764 ctl_done((union ctl_io *)ctsio); 6765 return (CTL_RETVAL_COMPLETE); 6766 } 6767 6768 /* 6769 * Allocate the data buffer and grab the user's data. In theory, 6770 * we shouldn't have to sanity check the parameter list length here 6771 * because the maximum size is 64K. We should be able to malloc 6772 * that much without too many problems. 6773 */ 6774 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6775 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6776 ctsio->kern_data_len = param_len; 6777 ctsio->kern_total_len = param_len; 6778 ctsio->kern_data_resid = 0; 6779 ctsio->kern_rel_offset = 0; 6780 ctsio->kern_sg_entries = 0; 6781 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6782 ctsio->be_move_done = ctl_config_move_done; 6783 ctl_datamove((union ctl_io *)ctsio); 6784 6785 return (CTL_RETVAL_COMPLETE); 6786 } 6787 6788 switch (ctsio->cdb[0]) { 6789 case MODE_SELECT_6: { 6790 struct scsi_mode_header_6 *mh6; 6791 6792 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6793 bd_len = mh6->blk_desc_len; 6794 break; 6795 } 6796 case MODE_SELECT_10: { 6797 struct scsi_mode_header_10 *mh10; 6798 6799 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6800 bd_len = scsi_2btoul(mh10->blk_desc_len); 6801 break; 6802 } 6803 default: 6804 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6805 break; 6806 } 6807 6808 if (param_len < (header_size + bd_len)) { 6809 free(ctsio->kern_data_ptr, M_CTL); 6810 ctl_set_param_len_error(ctsio); 6811 ctl_done((union ctl_io *)ctsio); 6812 return (CTL_RETVAL_COMPLETE); 6813 } 6814 6815 /* 6816 * Set the IO_CONT flag, so that if this I/O gets passed to 6817 * ctl_config_write_done(), it'll get passed back to 6818 * ctl_do_mode_select() for further processing, or completion if 6819 * we're all done. 6820 */ 6821 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6822 ctsio->io_cont = ctl_do_mode_select; 6823 6824 modepage_info = (union ctl_modepage_info *) 6825 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6826 6827 memset(modepage_info, 0, sizeof(*modepage_info)); 6828 6829 len_left = param_len - header_size - bd_len; 6830 len_used = header_size + bd_len; 6831 6832 modepage_info->header.len_left = len_left; 6833 modepage_info->header.len_used = len_used; 6834 6835 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6836} 6837 6838int 6839ctl_mode_sense(struct ctl_scsiio *ctsio) 6840{ 6841 struct ctl_lun *lun; 6842 int pc, page_code, dbd, llba, subpage; 6843 int alloc_len, page_len, header_len, total_len; 6844 struct scsi_mode_block_descr *block_desc; 6845 struct ctl_page_index *page_index; 6846 int control_dev; 6847 6848 dbd = 0; 6849 llba = 0; 6850 block_desc = NULL; 6851 page_index = NULL; 6852 6853 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6854 6855 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6856 6857 if (lun->be_lun->lun_type != T_DIRECT) 6858 control_dev = 1; 6859 else 6860 control_dev = 0; 6861 6862 if (lun->flags & CTL_LUN_PR_RESERVED) { 6863 uint32_t residx; 6864 6865 /* 6866 * XXX KDM need a lock here. 6867 */ 6868 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6869 if ((lun->res_type == SPR_TYPE_EX_AC 6870 && residx != lun->pr_res_idx) 6871 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6872 || lun->res_type == SPR_TYPE_EX_AC_AR) 6873 && !lun->per_res[residx].registered)) { 6874 ctl_set_reservation_conflict(ctsio); 6875 ctl_done((union ctl_io *)ctsio); 6876 return (CTL_RETVAL_COMPLETE); 6877 } 6878 } 6879 6880 switch (ctsio->cdb[0]) { 6881 case MODE_SENSE_6: { 6882 struct scsi_mode_sense_6 *cdb; 6883 6884 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6885 6886 header_len = sizeof(struct scsi_mode_hdr_6); 6887 if (cdb->byte2 & SMS_DBD) 6888 dbd = 1; 6889 else 6890 header_len += sizeof(struct scsi_mode_block_descr); 6891 6892 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6893 page_code = cdb->page & SMS_PAGE_CODE; 6894 subpage = cdb->subpage; 6895 alloc_len = cdb->length; 6896 break; 6897 } 6898 case MODE_SENSE_10: { 6899 struct scsi_mode_sense_10 *cdb; 6900 6901 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6902 6903 header_len = sizeof(struct scsi_mode_hdr_10); 6904 6905 if (cdb->byte2 & SMS_DBD) 6906 dbd = 1; 6907 else 6908 header_len += sizeof(struct scsi_mode_block_descr); 6909 if (cdb->byte2 & SMS10_LLBAA) 6910 llba = 1; 6911 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6912 page_code = cdb->page & SMS_PAGE_CODE; 6913 subpage = cdb->subpage; 6914 alloc_len = scsi_2btoul(cdb->length); 6915 break; 6916 } 6917 default: 6918 ctl_set_invalid_opcode(ctsio); 6919 ctl_done((union ctl_io *)ctsio); 6920 return (CTL_RETVAL_COMPLETE); 6921 break; /* NOTREACHED */ 6922 } 6923 6924 /* 6925 * We have to make a first pass through to calculate the size of 6926 * the pages that match the user's query. Then we allocate enough 6927 * memory to hold it, and actually copy the data into the buffer. 6928 */ 6929 switch (page_code) { 6930 case SMS_ALL_PAGES_PAGE: { 6931 int i; 6932 6933 page_len = 0; 6934 6935 /* 6936 * At the moment, values other than 0 and 0xff here are 6937 * reserved according to SPC-3. 6938 */ 6939 if ((subpage != SMS_SUBPAGE_PAGE_0) 6940 && (subpage != SMS_SUBPAGE_ALL)) { 6941 ctl_set_invalid_field(ctsio, 6942 /*sks_valid*/ 1, 6943 /*command*/ 1, 6944 /*field*/ 3, 6945 /*bit_valid*/ 0, 6946 /*bit*/ 0); 6947 ctl_done((union ctl_io *)ctsio); 6948 return (CTL_RETVAL_COMPLETE); 6949 } 6950 6951 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6952 if ((control_dev != 0) 6953 && (lun->mode_pages.index[i].page_flags & 6954 CTL_PAGE_FLAG_DISK_ONLY)) 6955 continue; 6956 6957 /* 6958 * We don't use this subpage if the user didn't 6959 * request all subpages. 6960 */ 6961 if ((lun->mode_pages.index[i].subpage != 0) 6962 && (subpage == SMS_SUBPAGE_PAGE_0)) 6963 continue; 6964 6965#if 0 6966 printf("found page %#x len %d\n", 6967 lun->mode_pages.index[i].page_code & 6968 SMPH_PC_MASK, 6969 lun->mode_pages.index[i].page_len); 6970#endif 6971 page_len += lun->mode_pages.index[i].page_len; 6972 } 6973 break; 6974 } 6975 default: { 6976 int i; 6977 6978 page_len = 0; 6979 6980 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6981 /* Look for the right page code */ 6982 if ((lun->mode_pages.index[i].page_code & 6983 SMPH_PC_MASK) != page_code) 6984 continue; 6985 6986 /* Look for the right subpage or the subpage wildcard*/ 6987 if ((lun->mode_pages.index[i].subpage != subpage) 6988 && (subpage != SMS_SUBPAGE_ALL)) 6989 continue; 6990 6991 /* Make sure the page is supported for this dev type */ 6992 if ((control_dev != 0) 6993 && (lun->mode_pages.index[i].page_flags & 6994 CTL_PAGE_FLAG_DISK_ONLY)) 6995 continue; 6996 6997#if 0 6998 printf("found page %#x len %d\n", 6999 lun->mode_pages.index[i].page_code & 7000 SMPH_PC_MASK, 7001 lun->mode_pages.index[i].page_len); 7002#endif 7003 7004 page_len += lun->mode_pages.index[i].page_len; 7005 } 7006 7007 if (page_len == 0) { 7008 ctl_set_invalid_field(ctsio, 7009 /*sks_valid*/ 1, 7010 /*command*/ 1, 7011 /*field*/ 2, 7012 /*bit_valid*/ 1, 7013 /*bit*/ 5); 7014 ctl_done((union ctl_io *)ctsio); 7015 return (CTL_RETVAL_COMPLETE); 7016 } 7017 break; 7018 } 7019 } 7020 7021 total_len = header_len + page_len; 7022#if 0 7023 printf("header_len = %d, page_len = %d, total_len = %d\n", 7024 header_len, page_len, total_len); 7025#endif 7026 7027 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7028 ctsio->kern_sg_entries = 0; 7029 ctsio->kern_data_resid = 0; 7030 ctsio->kern_rel_offset = 0; 7031 if (total_len < alloc_len) { 7032 ctsio->residual = alloc_len - total_len; 7033 ctsio->kern_data_len = total_len; 7034 ctsio->kern_total_len = total_len; 7035 } else { 7036 ctsio->residual = 0; 7037 ctsio->kern_data_len = alloc_len; 7038 ctsio->kern_total_len = alloc_len; 7039 } 7040 7041 switch (ctsio->cdb[0]) { 7042 case MODE_SENSE_6: { 7043 struct scsi_mode_hdr_6 *header; 7044 7045 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7046 7047 header->datalen = ctl_min(total_len - 1, 254); 7048 if (control_dev == 0) 7049 header->dev_specific = 0x10; /* DPOFUA */ 7050 if (dbd) 7051 header->block_descr_len = 0; 7052 else 7053 header->block_descr_len = 7054 sizeof(struct scsi_mode_block_descr); 7055 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7056 break; 7057 } 7058 case MODE_SENSE_10: { 7059 struct scsi_mode_hdr_10 *header; 7060 int datalen; 7061 7062 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7063 7064 datalen = ctl_min(total_len - 2, 65533); 7065 scsi_ulto2b(datalen, header->datalen); 7066 if (control_dev == 0) 7067 header->dev_specific = 0x10; /* DPOFUA */ 7068 if (dbd) 7069 scsi_ulto2b(0, header->block_descr_len); 7070 else 7071 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7072 header->block_descr_len); 7073 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7074 break; 7075 } 7076 default: 7077 panic("invalid CDB type %#x", ctsio->cdb[0]); 7078 break; /* NOTREACHED */ 7079 } 7080 7081 /* 7082 * If we've got a disk, use its blocksize in the block 7083 * descriptor. Otherwise, just set it to 0. 7084 */ 7085 if (dbd == 0) { 7086 if (control_dev == 0) 7087 scsi_ulto3b(lun->be_lun->blocksize, 7088 block_desc->block_len); 7089 else 7090 scsi_ulto3b(0, block_desc->block_len); 7091 } 7092 7093 switch (page_code) { 7094 case SMS_ALL_PAGES_PAGE: { 7095 int i, data_used; 7096 7097 data_used = header_len; 7098 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7099 struct ctl_page_index *page_index; 7100 7101 page_index = &lun->mode_pages.index[i]; 7102 7103 if ((control_dev != 0) 7104 && (page_index->page_flags & 7105 CTL_PAGE_FLAG_DISK_ONLY)) 7106 continue; 7107 7108 /* 7109 * We don't use this subpage if the user didn't 7110 * request all subpages. We already checked (above) 7111 * to make sure the user only specified a subpage 7112 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7113 */ 7114 if ((page_index->subpage != 0) 7115 && (subpage == SMS_SUBPAGE_PAGE_0)) 7116 continue; 7117 7118 /* 7119 * Call the handler, if it exists, to update the 7120 * page to the latest values. 7121 */ 7122 if (page_index->sense_handler != NULL) 7123 page_index->sense_handler(ctsio, page_index,pc); 7124 7125 memcpy(ctsio->kern_data_ptr + data_used, 7126 page_index->page_data + 7127 (page_index->page_len * pc), 7128 page_index->page_len); 7129 data_used += page_index->page_len; 7130 } 7131 break; 7132 } 7133 default: { 7134 int i, data_used; 7135 7136 data_used = header_len; 7137 7138 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7139 struct ctl_page_index *page_index; 7140 7141 page_index = &lun->mode_pages.index[i]; 7142 7143 /* Look for the right page code */ 7144 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7145 continue; 7146 7147 /* Look for the right subpage or the subpage wildcard*/ 7148 if ((page_index->subpage != subpage) 7149 && (subpage != SMS_SUBPAGE_ALL)) 7150 continue; 7151 7152 /* Make sure the page is supported for this dev type */ 7153 if ((control_dev != 0) 7154 && (page_index->page_flags & 7155 CTL_PAGE_FLAG_DISK_ONLY)) 7156 continue; 7157 7158 /* 7159 * Call the handler, if it exists, to update the 7160 * page to the latest values. 7161 */ 7162 if (page_index->sense_handler != NULL) 7163 page_index->sense_handler(ctsio, page_index,pc); 7164 7165 memcpy(ctsio->kern_data_ptr + data_used, 7166 page_index->page_data + 7167 (page_index->page_len * pc), 7168 page_index->page_len); 7169 data_used += page_index->page_len; 7170 } 7171 break; 7172 } 7173 } 7174 7175 ctsio->scsi_status = SCSI_STATUS_OK; 7176 7177 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7178 ctsio->be_move_done = ctl_config_move_done; 7179 ctl_datamove((union ctl_io *)ctsio); 7180 7181 return (CTL_RETVAL_COMPLETE); 7182} 7183 7184int 7185ctl_read_capacity(struct ctl_scsiio *ctsio) 7186{ 7187 struct scsi_read_capacity *cdb; 7188 struct scsi_read_capacity_data *data; 7189 struct ctl_lun *lun; 7190 uint32_t lba; 7191 7192 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7193 7194 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7195 7196 lba = scsi_4btoul(cdb->addr); 7197 if (((cdb->pmi & SRC_PMI) == 0) 7198 && (lba != 0)) { 7199 ctl_set_invalid_field(/*ctsio*/ ctsio, 7200 /*sks_valid*/ 1, 7201 /*command*/ 1, 7202 /*field*/ 2, 7203 /*bit_valid*/ 0, 7204 /*bit*/ 0); 7205 ctl_done((union ctl_io *)ctsio); 7206 return (CTL_RETVAL_COMPLETE); 7207 } 7208 7209 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7210 7211 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7212 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7213 ctsio->residual = 0; 7214 ctsio->kern_data_len = sizeof(*data); 7215 ctsio->kern_total_len = sizeof(*data); 7216 ctsio->kern_data_resid = 0; 7217 ctsio->kern_rel_offset = 0; 7218 ctsio->kern_sg_entries = 0; 7219 7220 /* 7221 * If the maximum LBA is greater than 0xfffffffe, the user must 7222 * issue a SERVICE ACTION IN (16) command, with the read capacity 7223 * serivce action set. 7224 */ 7225 if (lun->be_lun->maxlba > 0xfffffffe) 7226 scsi_ulto4b(0xffffffff, data->addr); 7227 else 7228 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7229 7230 /* 7231 * XXX KDM this may not be 512 bytes... 7232 */ 7233 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7234 7235 ctsio->scsi_status = SCSI_STATUS_OK; 7236 7237 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7238 ctsio->be_move_done = ctl_config_move_done; 7239 ctl_datamove((union ctl_io *)ctsio); 7240 7241 return (CTL_RETVAL_COMPLETE); 7242} 7243 7244int 7245ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7246{ 7247 struct scsi_read_capacity_16 *cdb; 7248 struct scsi_read_capacity_data_long *data; 7249 struct ctl_lun *lun; 7250 uint64_t lba; 7251 uint32_t alloc_len; 7252 7253 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7254 7255 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7256 7257 alloc_len = scsi_4btoul(cdb->alloc_len); 7258 lba = scsi_8btou64(cdb->addr); 7259 7260 if ((cdb->reladr & SRC16_PMI) 7261 && (lba != 0)) { 7262 ctl_set_invalid_field(/*ctsio*/ ctsio, 7263 /*sks_valid*/ 1, 7264 /*command*/ 1, 7265 /*field*/ 2, 7266 /*bit_valid*/ 0, 7267 /*bit*/ 0); 7268 ctl_done((union ctl_io *)ctsio); 7269 return (CTL_RETVAL_COMPLETE); 7270 } 7271 7272 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7273 7274 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7275 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7276 7277 if (sizeof(*data) < alloc_len) { 7278 ctsio->residual = alloc_len - sizeof(*data); 7279 ctsio->kern_data_len = sizeof(*data); 7280 ctsio->kern_total_len = sizeof(*data); 7281 } else { 7282 ctsio->residual = 0; 7283 ctsio->kern_data_len = alloc_len; 7284 ctsio->kern_total_len = alloc_len; 7285 } 7286 ctsio->kern_data_resid = 0; 7287 ctsio->kern_rel_offset = 0; 7288 ctsio->kern_sg_entries = 0; 7289 7290 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7291 /* XXX KDM this may not be 512 bytes... */ 7292 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7293 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7294 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7295 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7296 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7297 7298 ctsio->scsi_status = SCSI_STATUS_OK; 7299 7300 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7301 ctsio->be_move_done = ctl_config_move_done; 7302 ctl_datamove((union ctl_io *)ctsio); 7303 7304 return (CTL_RETVAL_COMPLETE); 7305} 7306 7307int 7308ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7309{ 7310 struct scsi_maintenance_in *cdb; 7311 int retval; 7312 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7313 int num_target_port_groups, num_target_ports, single; 7314 struct ctl_lun *lun; 7315 struct ctl_softc *softc; 7316 struct ctl_port *port; 7317 struct scsi_target_group_data *rtg_ptr; 7318 struct scsi_target_group_data_extended *rtg_ext_ptr; 7319 struct scsi_target_port_group_descriptor *tpg_desc; 7320 7321 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7322 7323 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7324 softc = control_softc; 7325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7326 7327 retval = CTL_RETVAL_COMPLETE; 7328 7329 switch (cdb->byte2 & STG_PDF_MASK) { 7330 case STG_PDF_LENGTH: 7331 ext = 0; 7332 break; 7333 case STG_PDF_EXTENDED: 7334 ext = 1; 7335 break; 7336 default: 7337 ctl_set_invalid_field(/*ctsio*/ ctsio, 7338 /*sks_valid*/ 1, 7339 /*command*/ 1, 7340 /*field*/ 2, 7341 /*bit_valid*/ 1, 7342 /*bit*/ 5); 7343 ctl_done((union ctl_io *)ctsio); 7344 return(retval); 7345 } 7346 7347 single = ctl_is_single; 7348 if (single) 7349 num_target_port_groups = 1; 7350 else 7351 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7352 num_target_ports = 0; 7353 mtx_lock(&softc->ctl_lock); 7354 STAILQ_FOREACH(port, &softc->port_list, links) { 7355 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7356 continue; 7357 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7358 continue; 7359 num_target_ports++; 7360 } 7361 mtx_unlock(&softc->ctl_lock); 7362 7363 if (ext) 7364 total_len = sizeof(struct scsi_target_group_data_extended); 7365 else 7366 total_len = sizeof(struct scsi_target_group_data); 7367 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7368 num_target_port_groups + 7369 sizeof(struct scsi_target_port_descriptor) * 7370 num_target_ports * num_target_port_groups; 7371 7372 alloc_len = scsi_4btoul(cdb->length); 7373 7374 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7375 7376 ctsio->kern_sg_entries = 0; 7377 7378 if (total_len < alloc_len) { 7379 ctsio->residual = alloc_len - total_len; 7380 ctsio->kern_data_len = total_len; 7381 ctsio->kern_total_len = total_len; 7382 } else { 7383 ctsio->residual = 0; 7384 ctsio->kern_data_len = alloc_len; 7385 ctsio->kern_total_len = alloc_len; 7386 } 7387 ctsio->kern_data_resid = 0; 7388 ctsio->kern_rel_offset = 0; 7389 7390 if (ext) { 7391 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7392 ctsio->kern_data_ptr; 7393 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7394 rtg_ext_ptr->format_type = 0x10; 7395 rtg_ext_ptr->implicit_transition_time = 0; 7396 tpg_desc = &rtg_ext_ptr->groups[0]; 7397 } else { 7398 rtg_ptr = (struct scsi_target_group_data *) 7399 ctsio->kern_data_ptr; 7400 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7401 tpg_desc = &rtg_ptr->groups[0]; 7402 } 7403 7404 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7405 mtx_lock(&softc->ctl_lock); 7406 for (g = 0; g < num_target_port_groups; g++) { 7407 if (g == pg) 7408 tpg_desc->pref_state = TPG_PRIMARY | 7409 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7410 else 7411 tpg_desc->pref_state = 7412 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7413 tpg_desc->support = TPG_AO_SUP; 7414 if (!single) 7415 tpg_desc->support |= TPG_AN_SUP; 7416 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7417 tpg_desc->status = TPG_IMPLICIT; 7418 pc = 0; 7419 STAILQ_FOREACH(port, &softc->port_list, links) { 7420 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7421 continue; 7422 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7423 CTL_MAX_LUNS) 7424 continue; 7425 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7426 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7427 relative_target_port_identifier); 7428 pc++; 7429 } 7430 tpg_desc->target_port_count = pc; 7431 tpg_desc = (struct scsi_target_port_group_descriptor *) 7432 &tpg_desc->descriptors[pc]; 7433 } 7434 mtx_unlock(&softc->ctl_lock); 7435 7436 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7437 ctsio->be_move_done = ctl_config_move_done; 7438 7439 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7440 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7441 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7442 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7443 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7444 7445 ctl_datamove((union ctl_io *)ctsio); 7446 return(retval); 7447} 7448 7449int 7450ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7451{ 7452 struct ctl_lun *lun; 7453 struct scsi_report_supported_opcodes *cdb; 7454 const struct ctl_cmd_entry *entry, *sentry; 7455 struct scsi_report_supported_opcodes_all *all; 7456 struct scsi_report_supported_opcodes_descr *descr; 7457 struct scsi_report_supported_opcodes_one *one; 7458 int retval; 7459 int alloc_len, total_len; 7460 int opcode, service_action, i, j, num; 7461 7462 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7463 7464 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7465 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7466 7467 retval = CTL_RETVAL_COMPLETE; 7468 7469 opcode = cdb->requested_opcode; 7470 service_action = scsi_2btoul(cdb->requested_service_action); 7471 switch (cdb->options & RSO_OPTIONS_MASK) { 7472 case RSO_OPTIONS_ALL: 7473 num = 0; 7474 for (i = 0; i < 256; i++) { 7475 entry = &ctl_cmd_table[i]; 7476 if (entry->flags & CTL_CMD_FLAG_SA5) { 7477 for (j = 0; j < 32; j++) { 7478 sentry = &((const struct ctl_cmd_entry *) 7479 entry->execute)[j]; 7480 if (ctl_cmd_applicable( 7481 lun->be_lun->lun_type, sentry)) 7482 num++; 7483 } 7484 } else { 7485 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7486 entry)) 7487 num++; 7488 } 7489 } 7490 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7491 num * sizeof(struct scsi_report_supported_opcodes_descr); 7492 break; 7493 case RSO_OPTIONS_OC: 7494 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7495 ctl_set_invalid_field(/*ctsio*/ ctsio, 7496 /*sks_valid*/ 1, 7497 /*command*/ 1, 7498 /*field*/ 2, 7499 /*bit_valid*/ 1, 7500 /*bit*/ 2); 7501 ctl_done((union ctl_io *)ctsio); 7502 return (CTL_RETVAL_COMPLETE); 7503 } 7504 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7505 break; 7506 case RSO_OPTIONS_OC_SA: 7507 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7508 service_action >= 32) { 7509 ctl_set_invalid_field(/*ctsio*/ ctsio, 7510 /*sks_valid*/ 1, 7511 /*command*/ 1, 7512 /*field*/ 2, 7513 /*bit_valid*/ 1, 7514 /*bit*/ 2); 7515 ctl_done((union ctl_io *)ctsio); 7516 return (CTL_RETVAL_COMPLETE); 7517 } 7518 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7519 break; 7520 default: 7521 ctl_set_invalid_field(/*ctsio*/ ctsio, 7522 /*sks_valid*/ 1, 7523 /*command*/ 1, 7524 /*field*/ 2, 7525 /*bit_valid*/ 1, 7526 /*bit*/ 2); 7527 ctl_done((union ctl_io *)ctsio); 7528 return (CTL_RETVAL_COMPLETE); 7529 } 7530 7531 alloc_len = scsi_4btoul(cdb->length); 7532 7533 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7534 7535 ctsio->kern_sg_entries = 0; 7536 7537 if (total_len < alloc_len) { 7538 ctsio->residual = alloc_len - total_len; 7539 ctsio->kern_data_len = total_len; 7540 ctsio->kern_total_len = total_len; 7541 } else { 7542 ctsio->residual = 0; 7543 ctsio->kern_data_len = alloc_len; 7544 ctsio->kern_total_len = alloc_len; 7545 } 7546 ctsio->kern_data_resid = 0; 7547 ctsio->kern_rel_offset = 0; 7548 7549 switch (cdb->options & RSO_OPTIONS_MASK) { 7550 case RSO_OPTIONS_ALL: 7551 all = (struct scsi_report_supported_opcodes_all *) 7552 ctsio->kern_data_ptr; 7553 num = 0; 7554 for (i = 0; i < 256; i++) { 7555 entry = &ctl_cmd_table[i]; 7556 if (entry->flags & CTL_CMD_FLAG_SA5) { 7557 for (j = 0; j < 32; j++) { 7558 sentry = &((const struct ctl_cmd_entry *) 7559 entry->execute)[j]; 7560 if (!ctl_cmd_applicable( 7561 lun->be_lun->lun_type, sentry)) 7562 continue; 7563 descr = &all->descr[num++]; 7564 descr->opcode = i; 7565 scsi_ulto2b(j, descr->service_action); 7566 descr->flags = RSO_SERVACTV; 7567 scsi_ulto2b(sentry->length, 7568 descr->cdb_length); 7569 } 7570 } else { 7571 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7572 entry)) 7573 continue; 7574 descr = &all->descr[num++]; 7575 descr->opcode = i; 7576 scsi_ulto2b(0, descr->service_action); 7577 descr->flags = 0; 7578 scsi_ulto2b(entry->length, descr->cdb_length); 7579 } 7580 } 7581 scsi_ulto4b( 7582 num * sizeof(struct scsi_report_supported_opcodes_descr), 7583 all->length); 7584 break; 7585 case RSO_OPTIONS_OC: 7586 one = (struct scsi_report_supported_opcodes_one *) 7587 ctsio->kern_data_ptr; 7588 entry = &ctl_cmd_table[opcode]; 7589 goto fill_one; 7590 case RSO_OPTIONS_OC_SA: 7591 one = (struct scsi_report_supported_opcodes_one *) 7592 ctsio->kern_data_ptr; 7593 entry = &ctl_cmd_table[opcode]; 7594 entry = &((const struct ctl_cmd_entry *) 7595 entry->execute)[service_action]; 7596fill_one: 7597 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7598 one->support = 3; 7599 scsi_ulto2b(entry->length, one->cdb_length); 7600 one->cdb_usage[0] = opcode; 7601 memcpy(&one->cdb_usage[1], entry->usage, 7602 entry->length - 1); 7603 } else 7604 one->support = 1; 7605 break; 7606 } 7607 7608 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7609 ctsio->be_move_done = ctl_config_move_done; 7610 7611 ctl_datamove((union ctl_io *)ctsio); 7612 return(retval); 7613} 7614 7615int 7616ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7617{ 7618 struct ctl_lun *lun; 7619 struct scsi_report_supported_tmf *cdb; 7620 struct scsi_report_supported_tmf_data *data; 7621 int retval; 7622 int alloc_len, total_len; 7623 7624 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7625 7626 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7627 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7628 7629 retval = CTL_RETVAL_COMPLETE; 7630 7631 total_len = sizeof(struct scsi_report_supported_tmf_data); 7632 alloc_len = scsi_4btoul(cdb->length); 7633 7634 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7635 7636 ctsio->kern_sg_entries = 0; 7637 7638 if (total_len < alloc_len) { 7639 ctsio->residual = alloc_len - total_len; 7640 ctsio->kern_data_len = total_len; 7641 ctsio->kern_total_len = total_len; 7642 } else { 7643 ctsio->residual = 0; 7644 ctsio->kern_data_len = alloc_len; 7645 ctsio->kern_total_len = alloc_len; 7646 } 7647 ctsio->kern_data_resid = 0; 7648 ctsio->kern_rel_offset = 0; 7649 7650 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7651 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7652 data->byte2 |= RST_ITNRS; 7653 7654 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7655 ctsio->be_move_done = ctl_config_move_done; 7656 7657 ctl_datamove((union ctl_io *)ctsio); 7658 return (retval); 7659} 7660 7661int 7662ctl_report_timestamp(struct ctl_scsiio *ctsio) 7663{ 7664 struct ctl_lun *lun; 7665 struct scsi_report_timestamp *cdb; 7666 struct scsi_report_timestamp_data *data; 7667 struct timeval tv; 7668 int64_t timestamp; 7669 int retval; 7670 int alloc_len, total_len; 7671 7672 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7673 7674 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7675 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7676 7677 retval = CTL_RETVAL_COMPLETE; 7678 7679 total_len = sizeof(struct scsi_report_timestamp_data); 7680 alloc_len = scsi_4btoul(cdb->length); 7681 7682 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7683 7684 ctsio->kern_sg_entries = 0; 7685 7686 if (total_len < alloc_len) { 7687 ctsio->residual = alloc_len - total_len; 7688 ctsio->kern_data_len = total_len; 7689 ctsio->kern_total_len = total_len; 7690 } else { 7691 ctsio->residual = 0; 7692 ctsio->kern_data_len = alloc_len; 7693 ctsio->kern_total_len = alloc_len; 7694 } 7695 ctsio->kern_data_resid = 0; 7696 ctsio->kern_rel_offset = 0; 7697 7698 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7699 scsi_ulto2b(sizeof(*data) - 2, data->length); 7700 data->origin = RTS_ORIG_OUTSIDE; 7701 getmicrotime(&tv); 7702 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7703 scsi_ulto4b(timestamp >> 16, data->timestamp); 7704 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7705 7706 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7707 ctsio->be_move_done = ctl_config_move_done; 7708 7709 ctl_datamove((union ctl_io *)ctsio); 7710 return (retval); 7711} 7712 7713int 7714ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7715{ 7716 struct scsi_per_res_in *cdb; 7717 int alloc_len, total_len = 0; 7718 /* struct scsi_per_res_in_rsrv in_data; */ 7719 struct ctl_lun *lun; 7720 struct ctl_softc *softc; 7721 7722 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7723 7724 softc = control_softc; 7725 7726 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7727 7728 alloc_len = scsi_2btoul(cdb->length); 7729 7730 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7731 7732retry: 7733 mtx_lock(&lun->lun_lock); 7734 switch (cdb->action) { 7735 case SPRI_RK: /* read keys */ 7736 total_len = sizeof(struct scsi_per_res_in_keys) + 7737 lun->pr_key_count * 7738 sizeof(struct scsi_per_res_key); 7739 break; 7740 case SPRI_RR: /* read reservation */ 7741 if (lun->flags & CTL_LUN_PR_RESERVED) 7742 total_len = sizeof(struct scsi_per_res_in_rsrv); 7743 else 7744 total_len = sizeof(struct scsi_per_res_in_header); 7745 break; 7746 case SPRI_RC: /* report capabilities */ 7747 total_len = sizeof(struct scsi_per_res_cap); 7748 break; 7749 case SPRI_RS: /* read full status */ 7750 total_len = sizeof(struct scsi_per_res_in_header) + 7751 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7752 lun->pr_key_count; 7753 break; 7754 default: 7755 panic("Invalid PR type %x", cdb->action); 7756 } 7757 mtx_unlock(&lun->lun_lock); 7758 7759 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7760 7761 if (total_len < alloc_len) { 7762 ctsio->residual = alloc_len - total_len; 7763 ctsio->kern_data_len = total_len; 7764 ctsio->kern_total_len = total_len; 7765 } else { 7766 ctsio->residual = 0; 7767 ctsio->kern_data_len = alloc_len; 7768 ctsio->kern_total_len = alloc_len; 7769 } 7770 7771 ctsio->kern_data_resid = 0; 7772 ctsio->kern_rel_offset = 0; 7773 ctsio->kern_sg_entries = 0; 7774 7775 mtx_lock(&lun->lun_lock); 7776 switch (cdb->action) { 7777 case SPRI_RK: { // read keys 7778 struct scsi_per_res_in_keys *res_keys; 7779 int i, key_count; 7780 7781 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7782 7783 /* 7784 * We had to drop the lock to allocate our buffer, which 7785 * leaves time for someone to come in with another 7786 * persistent reservation. (That is unlikely, though, 7787 * since this should be the only persistent reservation 7788 * command active right now.) 7789 */ 7790 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7791 (lun->pr_key_count * 7792 sizeof(struct scsi_per_res_key)))){ 7793 mtx_unlock(&lun->lun_lock); 7794 free(ctsio->kern_data_ptr, M_CTL); 7795 printf("%s: reservation length changed, retrying\n", 7796 __func__); 7797 goto retry; 7798 } 7799 7800 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7801 7802 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7803 lun->pr_key_count, res_keys->header.length); 7804 7805 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7806 if (!lun->per_res[i].registered) 7807 continue; 7808 7809 /* 7810 * We used lun->pr_key_count to calculate the 7811 * size to allocate. If it turns out the number of 7812 * initiators with the registered flag set is 7813 * larger than that (i.e. they haven't been kept in 7814 * sync), we've got a problem. 7815 */ 7816 if (key_count >= lun->pr_key_count) { 7817#ifdef NEEDTOPORT 7818 csevent_log(CSC_CTL | CSC_SHELF_SW | 7819 CTL_PR_ERROR, 7820 csevent_LogType_Fault, 7821 csevent_AlertLevel_Yellow, 7822 csevent_FRU_ShelfController, 7823 csevent_FRU_Firmware, 7824 csevent_FRU_Unknown, 7825 "registered keys %d >= key " 7826 "count %d", key_count, 7827 lun->pr_key_count); 7828#endif 7829 key_count++; 7830 continue; 7831 } 7832 memcpy(res_keys->keys[key_count].key, 7833 lun->per_res[i].res_key.key, 7834 ctl_min(sizeof(res_keys->keys[key_count].key), 7835 sizeof(lun->per_res[i].res_key))); 7836 key_count++; 7837 } 7838 break; 7839 } 7840 case SPRI_RR: { // read reservation 7841 struct scsi_per_res_in_rsrv *res; 7842 int tmp_len, header_only; 7843 7844 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7845 7846 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7847 7848 if (lun->flags & CTL_LUN_PR_RESERVED) 7849 { 7850 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7851 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7852 res->header.length); 7853 header_only = 0; 7854 } else { 7855 tmp_len = sizeof(struct scsi_per_res_in_header); 7856 scsi_ulto4b(0, res->header.length); 7857 header_only = 1; 7858 } 7859 7860 /* 7861 * We had to drop the lock to allocate our buffer, which 7862 * leaves time for someone to come in with another 7863 * persistent reservation. (That is unlikely, though, 7864 * since this should be the only persistent reservation 7865 * command active right now.) 7866 */ 7867 if (tmp_len != total_len) { 7868 mtx_unlock(&lun->lun_lock); 7869 free(ctsio->kern_data_ptr, M_CTL); 7870 printf("%s: reservation status changed, retrying\n", 7871 __func__); 7872 goto retry; 7873 } 7874 7875 /* 7876 * No reservation held, so we're done. 7877 */ 7878 if (header_only != 0) 7879 break; 7880 7881 /* 7882 * If the registration is an All Registrants type, the key 7883 * is 0, since it doesn't really matter. 7884 */ 7885 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7886 memcpy(res->data.reservation, 7887 &lun->per_res[lun->pr_res_idx].res_key, 7888 sizeof(struct scsi_per_res_key)); 7889 } 7890 res->data.scopetype = lun->res_type; 7891 break; 7892 } 7893 case SPRI_RC: //report capabilities 7894 { 7895 struct scsi_per_res_cap *res_cap; 7896 uint16_t type_mask; 7897 7898 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7899 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7900 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7901 type_mask = SPRI_TM_WR_EX_AR | 7902 SPRI_TM_EX_AC_RO | 7903 SPRI_TM_WR_EX_RO | 7904 SPRI_TM_EX_AC | 7905 SPRI_TM_WR_EX | 7906 SPRI_TM_EX_AC_AR; 7907 scsi_ulto2b(type_mask, res_cap->type_mask); 7908 break; 7909 } 7910 case SPRI_RS: { // read full status 7911 struct scsi_per_res_in_full *res_status; 7912 struct scsi_per_res_in_full_desc *res_desc; 7913 struct ctl_port *port; 7914 int i, len; 7915 7916 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7917 7918 /* 7919 * We had to drop the lock to allocate our buffer, which 7920 * leaves time for someone to come in with another 7921 * persistent reservation. (That is unlikely, though, 7922 * since this should be the only persistent reservation 7923 * command active right now.) 7924 */ 7925 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7926 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7927 lun->pr_key_count)){ 7928 mtx_unlock(&lun->lun_lock); 7929 free(ctsio->kern_data_ptr, M_CTL); 7930 printf("%s: reservation length changed, retrying\n", 7931 __func__); 7932 goto retry; 7933 } 7934 7935 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7936 7937 res_desc = &res_status->desc[0]; 7938 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7939 if (!lun->per_res[i].registered) 7940 continue; 7941 7942 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7943 sizeof(res_desc->res_key)); 7944 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7945 (lun->pr_res_idx == i || 7946 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7947 res_desc->flags = SPRI_FULL_R_HOLDER; 7948 res_desc->scopetype = lun->res_type; 7949 } 7950 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7951 res_desc->rel_trgt_port_id); 7952 len = 0; 7953 port = softc->ctl_ports[ 7954 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7955 if (port != NULL) 7956 len = ctl_create_iid(port, 7957 i % CTL_MAX_INIT_PER_PORT, 7958 res_desc->transport_id); 7959 scsi_ulto4b(len, res_desc->additional_length); 7960 res_desc = (struct scsi_per_res_in_full_desc *) 7961 &res_desc->transport_id[len]; 7962 } 7963 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7964 res_status->header.length); 7965 break; 7966 } 7967 default: 7968 /* 7969 * This is a bug, because we just checked for this above, 7970 * and should have returned an error. 7971 */ 7972 panic("Invalid PR type %x", cdb->action); 7973 break; /* NOTREACHED */ 7974 } 7975 mtx_unlock(&lun->lun_lock); 7976 7977 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7978 ctsio->be_move_done = ctl_config_move_done; 7979 7980 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7981 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7982 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7983 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7984 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7985 7986 ctl_datamove((union ctl_io *)ctsio); 7987 7988 return (CTL_RETVAL_COMPLETE); 7989} 7990 7991/* 7992 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7993 * it should return. 7994 */ 7995static int 7996ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7997 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7998 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7999 struct scsi_per_res_out_parms* param) 8000{ 8001 union ctl_ha_msg persis_io; 8002 int retval, i; 8003 int isc_retval; 8004 8005 retval = 0; 8006 8007 mtx_lock(&lun->lun_lock); 8008 if (sa_res_key == 0) { 8009 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8010 /* validate scope and type */ 8011 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8012 SPR_LU_SCOPE) { 8013 mtx_unlock(&lun->lun_lock); 8014 ctl_set_invalid_field(/*ctsio*/ ctsio, 8015 /*sks_valid*/ 1, 8016 /*command*/ 1, 8017 /*field*/ 2, 8018 /*bit_valid*/ 1, 8019 /*bit*/ 4); 8020 ctl_done((union ctl_io *)ctsio); 8021 return (1); 8022 } 8023 8024 if (type>8 || type==2 || type==4 || type==0) { 8025 mtx_unlock(&lun->lun_lock); 8026 ctl_set_invalid_field(/*ctsio*/ ctsio, 8027 /*sks_valid*/ 1, 8028 /*command*/ 1, 8029 /*field*/ 2, 8030 /*bit_valid*/ 1, 8031 /*bit*/ 0); 8032 ctl_done((union ctl_io *)ctsio); 8033 return (1); 8034 } 8035 8036 /* temporarily unregister this nexus */ 8037 lun->per_res[residx].registered = 0; 8038 8039 /* 8040 * Unregister everybody else and build UA for 8041 * them 8042 */ 8043 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8044 if (lun->per_res[i].registered == 0) 8045 continue; 8046 8047 if (!persis_offset 8048 && i <CTL_MAX_INITIATORS) 8049 lun->pending_ua[i] |= 8050 CTL_UA_REG_PREEMPT; 8051 else if (persis_offset 8052 && i >= persis_offset) 8053 lun->pending_ua[i-persis_offset] |= 8054 CTL_UA_REG_PREEMPT; 8055 lun->per_res[i].registered = 0; 8056 memset(&lun->per_res[i].res_key, 0, 8057 sizeof(struct scsi_per_res_key)); 8058 } 8059 lun->per_res[residx].registered = 1; 8060 lun->pr_key_count = 1; 8061 lun->res_type = type; 8062 if (lun->res_type != SPR_TYPE_WR_EX_AR 8063 && lun->res_type != SPR_TYPE_EX_AC_AR) 8064 lun->pr_res_idx = residx; 8065 8066 /* send msg to other side */ 8067 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8068 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8069 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8070 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8071 persis_io.pr.pr_info.res_type = type; 8072 memcpy(persis_io.pr.pr_info.sa_res_key, 8073 param->serv_act_res_key, 8074 sizeof(param->serv_act_res_key)); 8075 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8076 &persis_io, sizeof(persis_io), 0)) > 8077 CTL_HA_STATUS_SUCCESS) { 8078 printf("CTL:Persis Out error returned " 8079 "from ctl_ha_msg_send %d\n", 8080 isc_retval); 8081 } 8082 } else { 8083 /* not all registrants */ 8084 mtx_unlock(&lun->lun_lock); 8085 free(ctsio->kern_data_ptr, M_CTL); 8086 ctl_set_invalid_field(ctsio, 8087 /*sks_valid*/ 1, 8088 /*command*/ 0, 8089 /*field*/ 8, 8090 /*bit_valid*/ 0, 8091 /*bit*/ 0); 8092 ctl_done((union ctl_io *)ctsio); 8093 return (1); 8094 } 8095 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8096 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8097 int found = 0; 8098 8099 if (res_key == sa_res_key) { 8100 /* special case */ 8101 /* 8102 * The spec implies this is not good but doesn't 8103 * say what to do. There are two choices either 8104 * generate a res conflict or check condition 8105 * with illegal field in parameter data. Since 8106 * that is what is done when the sa_res_key is 8107 * zero I'll take that approach since this has 8108 * to do with the sa_res_key. 8109 */ 8110 mtx_unlock(&lun->lun_lock); 8111 free(ctsio->kern_data_ptr, M_CTL); 8112 ctl_set_invalid_field(ctsio, 8113 /*sks_valid*/ 1, 8114 /*command*/ 0, 8115 /*field*/ 8, 8116 /*bit_valid*/ 0, 8117 /*bit*/ 0); 8118 ctl_done((union ctl_io *)ctsio); 8119 return (1); 8120 } 8121 8122 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8123 if (lun->per_res[i].registered 8124 && memcmp(param->serv_act_res_key, 8125 lun->per_res[i].res_key.key, 8126 sizeof(struct scsi_per_res_key)) != 0) 8127 continue; 8128 8129 found = 1; 8130 lun->per_res[i].registered = 0; 8131 memset(&lun->per_res[i].res_key, 0, 8132 sizeof(struct scsi_per_res_key)); 8133 lun->pr_key_count--; 8134 8135 if (!persis_offset && i < CTL_MAX_INITIATORS) 8136 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8137 else if (persis_offset && i >= persis_offset) 8138 lun->pending_ua[i-persis_offset] |= 8139 CTL_UA_REG_PREEMPT; 8140 } 8141 if (!found) { 8142 mtx_unlock(&lun->lun_lock); 8143 free(ctsio->kern_data_ptr, M_CTL); 8144 ctl_set_reservation_conflict(ctsio); 8145 ctl_done((union ctl_io *)ctsio); 8146 return (CTL_RETVAL_COMPLETE); 8147 } 8148 /* send msg to other side */ 8149 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8150 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8151 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8152 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8153 persis_io.pr.pr_info.res_type = type; 8154 memcpy(persis_io.pr.pr_info.sa_res_key, 8155 param->serv_act_res_key, 8156 sizeof(param->serv_act_res_key)); 8157 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8158 &persis_io, sizeof(persis_io), 0)) > 8159 CTL_HA_STATUS_SUCCESS) { 8160 printf("CTL:Persis Out error returned from " 8161 "ctl_ha_msg_send %d\n", isc_retval); 8162 } 8163 } else { 8164 /* Reserved but not all registrants */ 8165 /* sa_res_key is res holder */ 8166 if (memcmp(param->serv_act_res_key, 8167 lun->per_res[lun->pr_res_idx].res_key.key, 8168 sizeof(struct scsi_per_res_key)) == 0) { 8169 /* validate scope and type */ 8170 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8171 SPR_LU_SCOPE) { 8172 mtx_unlock(&lun->lun_lock); 8173 ctl_set_invalid_field(/*ctsio*/ ctsio, 8174 /*sks_valid*/ 1, 8175 /*command*/ 1, 8176 /*field*/ 2, 8177 /*bit_valid*/ 1, 8178 /*bit*/ 4); 8179 ctl_done((union ctl_io *)ctsio); 8180 return (1); 8181 } 8182 8183 if (type>8 || type==2 || type==4 || type==0) { 8184 mtx_unlock(&lun->lun_lock); 8185 ctl_set_invalid_field(/*ctsio*/ ctsio, 8186 /*sks_valid*/ 1, 8187 /*command*/ 1, 8188 /*field*/ 2, 8189 /*bit_valid*/ 1, 8190 /*bit*/ 0); 8191 ctl_done((union ctl_io *)ctsio); 8192 return (1); 8193 } 8194 8195 /* 8196 * Do the following: 8197 * if sa_res_key != res_key remove all 8198 * registrants w/sa_res_key and generate UA 8199 * for these registrants(Registrations 8200 * Preempted) if it wasn't an exclusive 8201 * reservation generate UA(Reservations 8202 * Preempted) for all other registered nexuses 8203 * if the type has changed. Establish the new 8204 * reservation and holder. If res_key and 8205 * sa_res_key are the same do the above 8206 * except don't unregister the res holder. 8207 */ 8208 8209 /* 8210 * Temporarily unregister so it won't get 8211 * removed or UA generated 8212 */ 8213 lun->per_res[residx].registered = 0; 8214 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8215 if (lun->per_res[i].registered == 0) 8216 continue; 8217 8218 if (memcmp(param->serv_act_res_key, 8219 lun->per_res[i].res_key.key, 8220 sizeof(struct scsi_per_res_key)) == 0) { 8221 lun->per_res[i].registered = 0; 8222 memset(&lun->per_res[i].res_key, 8223 0, 8224 sizeof(struct scsi_per_res_key)); 8225 lun->pr_key_count--; 8226 8227 if (!persis_offset 8228 && i < CTL_MAX_INITIATORS) 8229 lun->pending_ua[i] |= 8230 CTL_UA_REG_PREEMPT; 8231 else if (persis_offset 8232 && i >= persis_offset) 8233 lun->pending_ua[i-persis_offset] |= 8234 CTL_UA_REG_PREEMPT; 8235 } else if (type != lun->res_type 8236 && (lun->res_type == SPR_TYPE_WR_EX_RO 8237 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8238 if (!persis_offset 8239 && i < CTL_MAX_INITIATORS) 8240 lun->pending_ua[i] |= 8241 CTL_UA_RES_RELEASE; 8242 else if (persis_offset 8243 && i >= persis_offset) 8244 lun->pending_ua[ 8245 i-persis_offset] |= 8246 CTL_UA_RES_RELEASE; 8247 } 8248 } 8249 lun->per_res[residx].registered = 1; 8250 lun->res_type = type; 8251 if (lun->res_type != SPR_TYPE_WR_EX_AR 8252 && lun->res_type != SPR_TYPE_EX_AC_AR) 8253 lun->pr_res_idx = residx; 8254 else 8255 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8256 8257 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8258 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8259 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8260 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8261 persis_io.pr.pr_info.res_type = type; 8262 memcpy(persis_io.pr.pr_info.sa_res_key, 8263 param->serv_act_res_key, 8264 sizeof(param->serv_act_res_key)); 8265 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8266 &persis_io, sizeof(persis_io), 0)) > 8267 CTL_HA_STATUS_SUCCESS) { 8268 printf("CTL:Persis Out error returned " 8269 "from ctl_ha_msg_send %d\n", 8270 isc_retval); 8271 } 8272 } else { 8273 /* 8274 * sa_res_key is not the res holder just 8275 * remove registrants 8276 */ 8277 int found=0; 8278 8279 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8280 if (memcmp(param->serv_act_res_key, 8281 lun->per_res[i].res_key.key, 8282 sizeof(struct scsi_per_res_key)) != 0) 8283 continue; 8284 8285 found = 1; 8286 lun->per_res[i].registered = 0; 8287 memset(&lun->per_res[i].res_key, 0, 8288 sizeof(struct scsi_per_res_key)); 8289 lun->pr_key_count--; 8290 8291 if (!persis_offset 8292 && i < CTL_MAX_INITIATORS) 8293 lun->pending_ua[i] |= 8294 CTL_UA_REG_PREEMPT; 8295 else if (persis_offset 8296 && i >= persis_offset) 8297 lun->pending_ua[i-persis_offset] |= 8298 CTL_UA_REG_PREEMPT; 8299 } 8300 8301 if (!found) { 8302 mtx_unlock(&lun->lun_lock); 8303 free(ctsio->kern_data_ptr, M_CTL); 8304 ctl_set_reservation_conflict(ctsio); 8305 ctl_done((union ctl_io *)ctsio); 8306 return (1); 8307 } 8308 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8309 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8310 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8311 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8312 persis_io.pr.pr_info.res_type = type; 8313 memcpy(persis_io.pr.pr_info.sa_res_key, 8314 param->serv_act_res_key, 8315 sizeof(param->serv_act_res_key)); 8316 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8317 &persis_io, sizeof(persis_io), 0)) > 8318 CTL_HA_STATUS_SUCCESS) { 8319 printf("CTL:Persis Out error returned " 8320 "from ctl_ha_msg_send %d\n", 8321 isc_retval); 8322 } 8323 } 8324 } 8325 8326 lun->PRGeneration++; 8327 mtx_unlock(&lun->lun_lock); 8328 8329 return (retval); 8330} 8331 8332static void 8333ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8334{ 8335 int i; 8336 8337 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8338 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8339 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8340 msg->pr.pr_info.sa_res_key, 8341 sizeof(struct scsi_per_res_key)) != 0) { 8342 uint64_t sa_res_key; 8343 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8344 8345 if (sa_res_key == 0) { 8346 /* temporarily unregister this nexus */ 8347 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8348 8349 /* 8350 * Unregister everybody else and build UA for 8351 * them 8352 */ 8353 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8354 if (lun->per_res[i].registered == 0) 8355 continue; 8356 8357 if (!persis_offset 8358 && i < CTL_MAX_INITIATORS) 8359 lun->pending_ua[i] |= 8360 CTL_UA_REG_PREEMPT; 8361 else if (persis_offset && i >= persis_offset) 8362 lun->pending_ua[i - persis_offset] |= 8363 CTL_UA_REG_PREEMPT; 8364 lun->per_res[i].registered = 0; 8365 memset(&lun->per_res[i].res_key, 0, 8366 sizeof(struct scsi_per_res_key)); 8367 } 8368 8369 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8370 lun->pr_key_count = 1; 8371 lun->res_type = msg->pr.pr_info.res_type; 8372 if (lun->res_type != SPR_TYPE_WR_EX_AR 8373 && lun->res_type != SPR_TYPE_EX_AC_AR) 8374 lun->pr_res_idx = msg->pr.pr_info.residx; 8375 } else { 8376 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8377 if (memcmp(msg->pr.pr_info.sa_res_key, 8378 lun->per_res[i].res_key.key, 8379 sizeof(struct scsi_per_res_key)) != 0) 8380 continue; 8381 8382 lun->per_res[i].registered = 0; 8383 memset(&lun->per_res[i].res_key, 0, 8384 sizeof(struct scsi_per_res_key)); 8385 lun->pr_key_count--; 8386 8387 if (!persis_offset 8388 && i < persis_offset) 8389 lun->pending_ua[i] |= 8390 CTL_UA_REG_PREEMPT; 8391 else if (persis_offset 8392 && i >= persis_offset) 8393 lun->pending_ua[i - persis_offset] |= 8394 CTL_UA_REG_PREEMPT; 8395 } 8396 } 8397 } else { 8398 /* 8399 * Temporarily unregister so it won't get removed 8400 * or UA generated 8401 */ 8402 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8403 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8404 if (lun->per_res[i].registered == 0) 8405 continue; 8406 8407 if (memcmp(msg->pr.pr_info.sa_res_key, 8408 lun->per_res[i].res_key.key, 8409 sizeof(struct scsi_per_res_key)) == 0) { 8410 lun->per_res[i].registered = 0; 8411 memset(&lun->per_res[i].res_key, 0, 8412 sizeof(struct scsi_per_res_key)); 8413 lun->pr_key_count--; 8414 if (!persis_offset 8415 && i < CTL_MAX_INITIATORS) 8416 lun->pending_ua[i] |= 8417 CTL_UA_REG_PREEMPT; 8418 else if (persis_offset 8419 && i >= persis_offset) 8420 lun->pending_ua[i - persis_offset] |= 8421 CTL_UA_REG_PREEMPT; 8422 } else if (msg->pr.pr_info.res_type != lun->res_type 8423 && (lun->res_type == SPR_TYPE_WR_EX_RO 8424 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8425 if (!persis_offset 8426 && i < persis_offset) 8427 lun->pending_ua[i] |= 8428 CTL_UA_RES_RELEASE; 8429 else if (persis_offset 8430 && i >= persis_offset) 8431 lun->pending_ua[i - persis_offset] |= 8432 CTL_UA_RES_RELEASE; 8433 } 8434 } 8435 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8436 lun->res_type = msg->pr.pr_info.res_type; 8437 if (lun->res_type != SPR_TYPE_WR_EX_AR 8438 && lun->res_type != SPR_TYPE_EX_AC_AR) 8439 lun->pr_res_idx = msg->pr.pr_info.residx; 8440 else 8441 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8442 } 8443 lun->PRGeneration++; 8444 8445} 8446 8447 8448int 8449ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8450{ 8451 int retval; 8452 int isc_retval; 8453 u_int32_t param_len; 8454 struct scsi_per_res_out *cdb; 8455 struct ctl_lun *lun; 8456 struct scsi_per_res_out_parms* param; 8457 struct ctl_softc *softc; 8458 uint32_t residx; 8459 uint64_t res_key, sa_res_key; 8460 uint8_t type; 8461 union ctl_ha_msg persis_io; 8462 int i; 8463 8464 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8465 8466 retval = CTL_RETVAL_COMPLETE; 8467 8468 softc = control_softc; 8469 8470 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8471 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8472 8473 /* 8474 * We only support whole-LUN scope. The scope & type are ignored for 8475 * register, register and ignore existing key and clear. 8476 * We sometimes ignore scope and type on preempts too!! 8477 * Verify reservation type here as well. 8478 */ 8479 type = cdb->scope_type & SPR_TYPE_MASK; 8480 if ((cdb->action == SPRO_RESERVE) 8481 || (cdb->action == SPRO_RELEASE)) { 8482 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8483 ctl_set_invalid_field(/*ctsio*/ ctsio, 8484 /*sks_valid*/ 1, 8485 /*command*/ 1, 8486 /*field*/ 2, 8487 /*bit_valid*/ 1, 8488 /*bit*/ 4); 8489 ctl_done((union ctl_io *)ctsio); 8490 return (CTL_RETVAL_COMPLETE); 8491 } 8492 8493 if (type>8 || type==2 || type==4 || type==0) { 8494 ctl_set_invalid_field(/*ctsio*/ ctsio, 8495 /*sks_valid*/ 1, 8496 /*command*/ 1, 8497 /*field*/ 2, 8498 /*bit_valid*/ 1, 8499 /*bit*/ 0); 8500 ctl_done((union ctl_io *)ctsio); 8501 return (CTL_RETVAL_COMPLETE); 8502 } 8503 } 8504 8505 param_len = scsi_4btoul(cdb->length); 8506 8507 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8508 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8509 ctsio->kern_data_len = param_len; 8510 ctsio->kern_total_len = param_len; 8511 ctsio->kern_data_resid = 0; 8512 ctsio->kern_rel_offset = 0; 8513 ctsio->kern_sg_entries = 0; 8514 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8515 ctsio->be_move_done = ctl_config_move_done; 8516 ctl_datamove((union ctl_io *)ctsio); 8517 8518 return (CTL_RETVAL_COMPLETE); 8519 } 8520 8521 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8522 8523 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8524 res_key = scsi_8btou64(param->res_key.key); 8525 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8526 8527 /* 8528 * Validate the reservation key here except for SPRO_REG_IGNO 8529 * This must be done for all other service actions 8530 */ 8531 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8532 mtx_lock(&lun->lun_lock); 8533 if (lun->per_res[residx].registered) { 8534 if (memcmp(param->res_key.key, 8535 lun->per_res[residx].res_key.key, 8536 ctl_min(sizeof(param->res_key), 8537 sizeof(lun->per_res[residx].res_key))) != 0) { 8538 /* 8539 * The current key passed in doesn't match 8540 * the one the initiator previously 8541 * registered. 8542 */ 8543 mtx_unlock(&lun->lun_lock); 8544 free(ctsio->kern_data_ptr, M_CTL); 8545 ctl_set_reservation_conflict(ctsio); 8546 ctl_done((union ctl_io *)ctsio); 8547 return (CTL_RETVAL_COMPLETE); 8548 } 8549 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8550 /* 8551 * We are not registered 8552 */ 8553 mtx_unlock(&lun->lun_lock); 8554 free(ctsio->kern_data_ptr, M_CTL); 8555 ctl_set_reservation_conflict(ctsio); 8556 ctl_done((union ctl_io *)ctsio); 8557 return (CTL_RETVAL_COMPLETE); 8558 } else if (res_key != 0) { 8559 /* 8560 * We are not registered and trying to register but 8561 * the register key isn't zero. 8562 */ 8563 mtx_unlock(&lun->lun_lock); 8564 free(ctsio->kern_data_ptr, M_CTL); 8565 ctl_set_reservation_conflict(ctsio); 8566 ctl_done((union ctl_io *)ctsio); 8567 return (CTL_RETVAL_COMPLETE); 8568 } 8569 mtx_unlock(&lun->lun_lock); 8570 } 8571 8572 switch (cdb->action & SPRO_ACTION_MASK) { 8573 case SPRO_REGISTER: 8574 case SPRO_REG_IGNO: { 8575 8576#if 0 8577 printf("Registration received\n"); 8578#endif 8579 8580 /* 8581 * We don't support any of these options, as we report in 8582 * the read capabilities request (see 8583 * ctl_persistent_reserve_in(), above). 8584 */ 8585 if ((param->flags & SPR_SPEC_I_PT) 8586 || (param->flags & SPR_ALL_TG_PT) 8587 || (param->flags & SPR_APTPL)) { 8588 int bit_ptr; 8589 8590 if (param->flags & SPR_APTPL) 8591 bit_ptr = 0; 8592 else if (param->flags & SPR_ALL_TG_PT) 8593 bit_ptr = 2; 8594 else /* SPR_SPEC_I_PT */ 8595 bit_ptr = 3; 8596 8597 free(ctsio->kern_data_ptr, M_CTL); 8598 ctl_set_invalid_field(ctsio, 8599 /*sks_valid*/ 1, 8600 /*command*/ 0, 8601 /*field*/ 20, 8602 /*bit_valid*/ 1, 8603 /*bit*/ bit_ptr); 8604 ctl_done((union ctl_io *)ctsio); 8605 return (CTL_RETVAL_COMPLETE); 8606 } 8607 8608 mtx_lock(&lun->lun_lock); 8609 8610 /* 8611 * The initiator wants to clear the 8612 * key/unregister. 8613 */ 8614 if (sa_res_key == 0) { 8615 if ((res_key == 0 8616 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8617 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8618 && !lun->per_res[residx].registered)) { 8619 mtx_unlock(&lun->lun_lock); 8620 goto done; 8621 } 8622 8623 lun->per_res[residx].registered = 0; 8624 memset(&lun->per_res[residx].res_key, 8625 0, sizeof(lun->per_res[residx].res_key)); 8626 lun->pr_key_count--; 8627 8628 if (residx == lun->pr_res_idx) { 8629 lun->flags &= ~CTL_LUN_PR_RESERVED; 8630 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8631 8632 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8633 || lun->res_type == SPR_TYPE_EX_AC_RO) 8634 && lun->pr_key_count) { 8635 /* 8636 * If the reservation is a registrants 8637 * only type we need to generate a UA 8638 * for other registered inits. The 8639 * sense code should be RESERVATIONS 8640 * RELEASED 8641 */ 8642 8643 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8644 if (lun->per_res[ 8645 i+persis_offset].registered 8646 == 0) 8647 continue; 8648 lun->pending_ua[i] |= 8649 CTL_UA_RES_RELEASE; 8650 } 8651 } 8652 lun->res_type = 0; 8653 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8654 if (lun->pr_key_count==0) { 8655 lun->flags &= ~CTL_LUN_PR_RESERVED; 8656 lun->res_type = 0; 8657 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8658 } 8659 } 8660 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8661 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8662 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8663 persis_io.pr.pr_info.residx = residx; 8664 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8665 &persis_io, sizeof(persis_io), 0 )) > 8666 CTL_HA_STATUS_SUCCESS) { 8667 printf("CTL:Persis Out error returned from " 8668 "ctl_ha_msg_send %d\n", isc_retval); 8669 } 8670 } else /* sa_res_key != 0 */ { 8671 8672 /* 8673 * If we aren't registered currently then increment 8674 * the key count and set the registered flag. 8675 */ 8676 if (!lun->per_res[residx].registered) { 8677 lun->pr_key_count++; 8678 lun->per_res[residx].registered = 1; 8679 } 8680 8681 memcpy(&lun->per_res[residx].res_key, 8682 param->serv_act_res_key, 8683 ctl_min(sizeof(param->serv_act_res_key), 8684 sizeof(lun->per_res[residx].res_key))); 8685 8686 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8687 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8688 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8689 persis_io.pr.pr_info.residx = residx; 8690 memcpy(persis_io.pr.pr_info.sa_res_key, 8691 param->serv_act_res_key, 8692 sizeof(param->serv_act_res_key)); 8693 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8694 &persis_io, sizeof(persis_io), 0)) > 8695 CTL_HA_STATUS_SUCCESS) { 8696 printf("CTL:Persis Out error returned from " 8697 "ctl_ha_msg_send %d\n", isc_retval); 8698 } 8699 } 8700 lun->PRGeneration++; 8701 mtx_unlock(&lun->lun_lock); 8702 8703 break; 8704 } 8705 case SPRO_RESERVE: 8706#if 0 8707 printf("Reserve executed type %d\n", type); 8708#endif 8709 mtx_lock(&lun->lun_lock); 8710 if (lun->flags & CTL_LUN_PR_RESERVED) { 8711 /* 8712 * if this isn't the reservation holder and it's 8713 * not a "all registrants" type or if the type is 8714 * different then we have a conflict 8715 */ 8716 if ((lun->pr_res_idx != residx 8717 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8718 || lun->res_type != type) { 8719 mtx_unlock(&lun->lun_lock); 8720 free(ctsio->kern_data_ptr, M_CTL); 8721 ctl_set_reservation_conflict(ctsio); 8722 ctl_done((union ctl_io *)ctsio); 8723 return (CTL_RETVAL_COMPLETE); 8724 } 8725 mtx_unlock(&lun->lun_lock); 8726 } else /* create a reservation */ { 8727 /* 8728 * If it's not an "all registrants" type record 8729 * reservation holder 8730 */ 8731 if (type != SPR_TYPE_WR_EX_AR 8732 && type != SPR_TYPE_EX_AC_AR) 8733 lun->pr_res_idx = residx; /* Res holder */ 8734 else 8735 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8736 8737 lun->flags |= CTL_LUN_PR_RESERVED; 8738 lun->res_type = type; 8739 8740 mtx_unlock(&lun->lun_lock); 8741 8742 /* send msg to other side */ 8743 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8744 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8745 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8746 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8747 persis_io.pr.pr_info.res_type = type; 8748 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8749 &persis_io, sizeof(persis_io), 0)) > 8750 CTL_HA_STATUS_SUCCESS) { 8751 printf("CTL:Persis Out error returned from " 8752 "ctl_ha_msg_send %d\n", isc_retval); 8753 } 8754 } 8755 break; 8756 8757 case SPRO_RELEASE: 8758 mtx_lock(&lun->lun_lock); 8759 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8760 /* No reservation exists return good status */ 8761 mtx_unlock(&lun->lun_lock); 8762 goto done; 8763 } 8764 /* 8765 * Is this nexus a reservation holder? 8766 */ 8767 if (lun->pr_res_idx != residx 8768 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8769 /* 8770 * not a res holder return good status but 8771 * do nothing 8772 */ 8773 mtx_unlock(&lun->lun_lock); 8774 goto done; 8775 } 8776 8777 if (lun->res_type != type) { 8778 mtx_unlock(&lun->lun_lock); 8779 free(ctsio->kern_data_ptr, M_CTL); 8780 ctl_set_illegal_pr_release(ctsio); 8781 ctl_done((union ctl_io *)ctsio); 8782 return (CTL_RETVAL_COMPLETE); 8783 } 8784 8785 /* okay to release */ 8786 lun->flags &= ~CTL_LUN_PR_RESERVED; 8787 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8788 lun->res_type = 0; 8789 8790 /* 8791 * if this isn't an exclusive access 8792 * res generate UA for all other 8793 * registrants. 8794 */ 8795 if (type != SPR_TYPE_EX_AC 8796 && type != SPR_TYPE_WR_EX) { 8797 /* 8798 * temporarily unregister so we don't generate UA 8799 */ 8800 lun->per_res[residx].registered = 0; 8801 8802 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8803 if (lun->per_res[i+persis_offset].registered 8804 == 0) 8805 continue; 8806 lun->pending_ua[i] |= 8807 CTL_UA_RES_RELEASE; 8808 } 8809 8810 lun->per_res[residx].registered = 1; 8811 } 8812 mtx_unlock(&lun->lun_lock); 8813 /* Send msg to other side */ 8814 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8815 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8816 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8817 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8818 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8819 printf("CTL:Persis Out error returned from " 8820 "ctl_ha_msg_send %d\n", isc_retval); 8821 } 8822 break; 8823 8824 case SPRO_CLEAR: 8825 /* send msg to other side */ 8826 8827 mtx_lock(&lun->lun_lock); 8828 lun->flags &= ~CTL_LUN_PR_RESERVED; 8829 lun->res_type = 0; 8830 lun->pr_key_count = 0; 8831 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8832 8833 8834 memset(&lun->per_res[residx].res_key, 8835 0, sizeof(lun->per_res[residx].res_key)); 8836 lun->per_res[residx].registered = 0; 8837 8838 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8839 if (lun->per_res[i].registered) { 8840 if (!persis_offset && i < CTL_MAX_INITIATORS) 8841 lun->pending_ua[i] |= 8842 CTL_UA_RES_PREEMPT; 8843 else if (persis_offset && i >= persis_offset) 8844 lun->pending_ua[i-persis_offset] |= 8845 CTL_UA_RES_PREEMPT; 8846 8847 memset(&lun->per_res[i].res_key, 8848 0, sizeof(struct scsi_per_res_key)); 8849 lun->per_res[i].registered = 0; 8850 } 8851 lun->PRGeneration++; 8852 mtx_unlock(&lun->lun_lock); 8853 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8854 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8855 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8856 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8857 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8858 printf("CTL:Persis Out error returned from " 8859 "ctl_ha_msg_send %d\n", isc_retval); 8860 } 8861 break; 8862 8863 case SPRO_PREEMPT: { 8864 int nretval; 8865 8866 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8867 residx, ctsio, cdb, param); 8868 if (nretval != 0) 8869 return (CTL_RETVAL_COMPLETE); 8870 break; 8871 } 8872 default: 8873 panic("Invalid PR type %x", cdb->action); 8874 } 8875 8876done: 8877 free(ctsio->kern_data_ptr, M_CTL); 8878 ctl_set_success(ctsio); 8879 ctl_done((union ctl_io *)ctsio); 8880 8881 return (retval); 8882} 8883 8884/* 8885 * This routine is for handling a message from the other SC pertaining to 8886 * persistent reserve out. All the error checking will have been done 8887 * so only perorming the action need be done here to keep the two 8888 * in sync. 8889 */ 8890static void 8891ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8892{ 8893 struct ctl_lun *lun; 8894 struct ctl_softc *softc; 8895 int i; 8896 uint32_t targ_lun; 8897 8898 softc = control_softc; 8899 8900 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8901 lun = softc->ctl_luns[targ_lun]; 8902 mtx_lock(&lun->lun_lock); 8903 switch(msg->pr.pr_info.action) { 8904 case CTL_PR_REG_KEY: 8905 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8906 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8907 lun->pr_key_count++; 8908 } 8909 lun->PRGeneration++; 8910 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8911 msg->pr.pr_info.sa_res_key, 8912 sizeof(struct scsi_per_res_key)); 8913 break; 8914 8915 case CTL_PR_UNREG_KEY: 8916 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8917 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8918 0, sizeof(struct scsi_per_res_key)); 8919 lun->pr_key_count--; 8920 8921 /* XXX Need to see if the reservation has been released */ 8922 /* if so do we need to generate UA? */ 8923 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8924 lun->flags &= ~CTL_LUN_PR_RESERVED; 8925 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8926 8927 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8928 || lun->res_type == SPR_TYPE_EX_AC_RO) 8929 && lun->pr_key_count) { 8930 /* 8931 * If the reservation is a registrants 8932 * only type we need to generate a UA 8933 * for other registered inits. The 8934 * sense code should be RESERVATIONS 8935 * RELEASED 8936 */ 8937 8938 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8939 if (lun->per_res[i+ 8940 persis_offset].registered == 0) 8941 continue; 8942 8943 lun->pending_ua[i] |= 8944 CTL_UA_RES_RELEASE; 8945 } 8946 } 8947 lun->res_type = 0; 8948 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8949 if (lun->pr_key_count==0) { 8950 lun->flags &= ~CTL_LUN_PR_RESERVED; 8951 lun->res_type = 0; 8952 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8953 } 8954 } 8955 lun->PRGeneration++; 8956 break; 8957 8958 case CTL_PR_RESERVE: 8959 lun->flags |= CTL_LUN_PR_RESERVED; 8960 lun->res_type = msg->pr.pr_info.res_type; 8961 lun->pr_res_idx = msg->pr.pr_info.residx; 8962 8963 break; 8964 8965 case CTL_PR_RELEASE: 8966 /* 8967 * if this isn't an exclusive access res generate UA for all 8968 * other registrants. 8969 */ 8970 if (lun->res_type != SPR_TYPE_EX_AC 8971 && lun->res_type != SPR_TYPE_WR_EX) { 8972 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8973 if (lun->per_res[i+persis_offset].registered) 8974 lun->pending_ua[i] |= 8975 CTL_UA_RES_RELEASE; 8976 } 8977 8978 lun->flags &= ~CTL_LUN_PR_RESERVED; 8979 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8980 lun->res_type = 0; 8981 break; 8982 8983 case CTL_PR_PREEMPT: 8984 ctl_pro_preempt_other(lun, msg); 8985 break; 8986 case CTL_PR_CLEAR: 8987 lun->flags &= ~CTL_LUN_PR_RESERVED; 8988 lun->res_type = 0; 8989 lun->pr_key_count = 0; 8990 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8991 8992 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8993 if (lun->per_res[i].registered == 0) 8994 continue; 8995 if (!persis_offset 8996 && i < CTL_MAX_INITIATORS) 8997 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8998 else if (persis_offset 8999 && i >= persis_offset) 9000 lun->pending_ua[i-persis_offset] |= 9001 CTL_UA_RES_PREEMPT; 9002 memset(&lun->per_res[i].res_key, 0, 9003 sizeof(struct scsi_per_res_key)); 9004 lun->per_res[i].registered = 0; 9005 } 9006 lun->PRGeneration++; 9007 break; 9008 } 9009 9010 mtx_unlock(&lun->lun_lock); 9011} 9012 9013int 9014ctl_read_write(struct ctl_scsiio *ctsio) 9015{ 9016 struct ctl_lun *lun; 9017 struct ctl_lba_len_flags *lbalen; 9018 uint64_t lba; 9019 uint32_t num_blocks; 9020 int flags, retval; 9021 int isread; 9022 9023 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9024 9025 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9026 9027 flags = 0; 9028 retval = CTL_RETVAL_COMPLETE; 9029 9030 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9031 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9032 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9033 uint32_t residx; 9034 9035 /* 9036 * XXX KDM need a lock here. 9037 */ 9038 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9039 if ((lun->res_type == SPR_TYPE_EX_AC 9040 && residx != lun->pr_res_idx) 9041 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9042 || lun->res_type == SPR_TYPE_EX_AC_AR) 9043 && !lun->per_res[residx].registered)) { 9044 ctl_set_reservation_conflict(ctsio); 9045 ctl_done((union ctl_io *)ctsio); 9046 return (CTL_RETVAL_COMPLETE); 9047 } 9048 } 9049 9050 switch (ctsio->cdb[0]) { 9051 case READ_6: 9052 case WRITE_6: { 9053 struct scsi_rw_6 *cdb; 9054 9055 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9056 9057 lba = scsi_3btoul(cdb->addr); 9058 /* only 5 bits are valid in the most significant address byte */ 9059 lba &= 0x1fffff; 9060 num_blocks = cdb->length; 9061 /* 9062 * This is correct according to SBC-2. 9063 */ 9064 if (num_blocks == 0) 9065 num_blocks = 256; 9066 break; 9067 } 9068 case READ_10: 9069 case WRITE_10: { 9070 struct scsi_rw_10 *cdb; 9071 9072 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9073 if (cdb->byte2 & SRW10_FUA) 9074 flags |= CTL_LLF_FUA; 9075 if (cdb->byte2 & SRW10_DPO) 9076 flags |= CTL_LLF_DPO; 9077 lba = scsi_4btoul(cdb->addr); 9078 num_blocks = scsi_2btoul(cdb->length); 9079 break; 9080 } 9081 case WRITE_VERIFY_10: { 9082 struct scsi_write_verify_10 *cdb; 9083 9084 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9085 flags |= CTL_LLF_FUA; 9086 if (cdb->byte2 & SWV_DPO) 9087 flags |= CTL_LLF_DPO; 9088 lba = scsi_4btoul(cdb->addr); 9089 num_blocks = scsi_2btoul(cdb->length); 9090 break; 9091 } 9092 case READ_12: 9093 case WRITE_12: { 9094 struct scsi_rw_12 *cdb; 9095 9096 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9097 if (cdb->byte2 & SRW12_FUA) 9098 flags |= CTL_LLF_FUA; 9099 if (cdb->byte2 & SRW12_DPO) 9100 flags |= CTL_LLF_DPO; 9101 lba = scsi_4btoul(cdb->addr); 9102 num_blocks = scsi_4btoul(cdb->length); 9103 break; 9104 } 9105 case WRITE_VERIFY_12: { 9106 struct scsi_write_verify_12 *cdb; 9107 9108 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9109 flags |= CTL_LLF_FUA; 9110 if (cdb->byte2 & SWV_DPO) 9111 flags |= CTL_LLF_DPO; 9112 lba = scsi_4btoul(cdb->addr); 9113 num_blocks = scsi_4btoul(cdb->length); 9114 break; 9115 } 9116 case READ_16: 9117 case WRITE_16: { 9118 struct scsi_rw_16 *cdb; 9119 9120 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9121 if (cdb->byte2 & SRW12_FUA) 9122 flags |= CTL_LLF_FUA; 9123 if (cdb->byte2 & SRW12_DPO) 9124 flags |= CTL_LLF_DPO; 9125 lba = scsi_8btou64(cdb->addr); 9126 num_blocks = scsi_4btoul(cdb->length); 9127 break; 9128 } 9129 case WRITE_VERIFY_16: { 9130 struct scsi_write_verify_16 *cdb; 9131 9132 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9133 flags |= CTL_LLF_FUA; 9134 if (cdb->byte2 & SWV_DPO) 9135 flags |= CTL_LLF_DPO; 9136 lba = scsi_8btou64(cdb->addr); 9137 num_blocks = scsi_4btoul(cdb->length); 9138 break; 9139 } 9140 default: 9141 /* 9142 * We got a command we don't support. This shouldn't 9143 * happen, commands should be filtered out above us. 9144 */ 9145 ctl_set_invalid_opcode(ctsio); 9146 ctl_done((union ctl_io *)ctsio); 9147 9148 return (CTL_RETVAL_COMPLETE); 9149 break; /* NOTREACHED */ 9150 } 9151 9152 /* 9153 * The first check is to make sure we're in bounds, the second 9154 * check is to catch wrap-around problems. If the lba + num blocks 9155 * is less than the lba, then we've wrapped around and the block 9156 * range is invalid anyway. 9157 */ 9158 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9159 || ((lba + num_blocks) < lba)) { 9160 ctl_set_lba_out_of_range(ctsio); 9161 ctl_done((union ctl_io *)ctsio); 9162 return (CTL_RETVAL_COMPLETE); 9163 } 9164 9165 /* 9166 * According to SBC-3, a transfer length of 0 is not an error. 9167 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9168 * translates to 256 blocks for those commands. 9169 */ 9170 if (num_blocks == 0) { 9171 ctl_set_success(ctsio); 9172 ctl_done((union ctl_io *)ctsio); 9173 return (CTL_RETVAL_COMPLETE); 9174 } 9175 9176 /* Set FUA and/or DPO if caches are disabled. */ 9177 if (isread) { 9178 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9179 SCP_RCD) != 0) 9180 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9181 } else { 9182 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9183 SCP_WCE) == 0) 9184 flags |= CTL_LLF_FUA; 9185 } 9186 9187 lbalen = (struct ctl_lba_len_flags *) 9188 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9189 lbalen->lba = lba; 9190 lbalen->len = num_blocks; 9191 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9192 9193 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9194 ctsio->kern_rel_offset = 0; 9195 9196 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9197 9198 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9199 9200 return (retval); 9201} 9202 9203static int 9204ctl_cnw_cont(union ctl_io *io) 9205{ 9206 struct ctl_scsiio *ctsio; 9207 struct ctl_lun *lun; 9208 struct ctl_lba_len_flags *lbalen; 9209 int retval; 9210 9211 ctsio = &io->scsiio; 9212 ctsio->io_hdr.status = CTL_STATUS_NONE; 9213 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9214 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9215 lbalen = (struct ctl_lba_len_flags *) 9216 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9217 lbalen->flags &= ~CTL_LLF_COMPARE; 9218 lbalen->flags |= CTL_LLF_WRITE; 9219 9220 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9221 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9222 return (retval); 9223} 9224 9225int 9226ctl_cnw(struct ctl_scsiio *ctsio) 9227{ 9228 struct ctl_lun *lun; 9229 struct ctl_lba_len_flags *lbalen; 9230 uint64_t lba; 9231 uint32_t num_blocks; 9232 int flags, retval; 9233 9234 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9235 9236 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9237 9238 flags = 0; 9239 retval = CTL_RETVAL_COMPLETE; 9240 9241 switch (ctsio->cdb[0]) { 9242 case COMPARE_AND_WRITE: { 9243 struct scsi_compare_and_write *cdb; 9244 9245 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9246 if (cdb->byte2 & SRW10_FUA) 9247 flags |= CTL_LLF_FUA; 9248 if (cdb->byte2 & SRW10_DPO) 9249 flags |= CTL_LLF_DPO; 9250 lba = scsi_8btou64(cdb->addr); 9251 num_blocks = cdb->length; 9252 break; 9253 } 9254 default: 9255 /* 9256 * We got a command we don't support. This shouldn't 9257 * happen, commands should be filtered out above us. 9258 */ 9259 ctl_set_invalid_opcode(ctsio); 9260 ctl_done((union ctl_io *)ctsio); 9261 9262 return (CTL_RETVAL_COMPLETE); 9263 break; /* NOTREACHED */ 9264 } 9265 9266 /* 9267 * The first check is to make sure we're in bounds, the second 9268 * check is to catch wrap-around problems. If the lba + num blocks 9269 * is less than the lba, then we've wrapped around and the block 9270 * range is invalid anyway. 9271 */ 9272 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9273 || ((lba + num_blocks) < lba)) { 9274 ctl_set_lba_out_of_range(ctsio); 9275 ctl_done((union ctl_io *)ctsio); 9276 return (CTL_RETVAL_COMPLETE); 9277 } 9278 9279 /* 9280 * According to SBC-3, a transfer length of 0 is not an error. 9281 */ 9282 if (num_blocks == 0) { 9283 ctl_set_success(ctsio); 9284 ctl_done((union ctl_io *)ctsio); 9285 return (CTL_RETVAL_COMPLETE); 9286 } 9287 9288 /* Set FUA if write cache is disabled. */ 9289 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9290 SCP_WCE) == 0) 9291 flags |= CTL_LLF_FUA; 9292 9293 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9294 ctsio->kern_rel_offset = 0; 9295 9296 /* 9297 * Set the IO_CONT flag, so that if this I/O gets passed to 9298 * ctl_data_submit_done(), it'll get passed back to 9299 * ctl_ctl_cnw_cont() for further processing. 9300 */ 9301 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9302 ctsio->io_cont = ctl_cnw_cont; 9303 9304 lbalen = (struct ctl_lba_len_flags *) 9305 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9306 lbalen->lba = lba; 9307 lbalen->len = num_blocks; 9308 lbalen->flags = CTL_LLF_COMPARE | flags; 9309 9310 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9311 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9312 return (retval); 9313} 9314 9315int 9316ctl_verify(struct ctl_scsiio *ctsio) 9317{ 9318 struct ctl_lun *lun; 9319 struct ctl_lba_len_flags *lbalen; 9320 uint64_t lba; 9321 uint32_t num_blocks; 9322 int bytchk, flags; 9323 int retval; 9324 9325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9326 9327 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9328 9329 bytchk = 0; 9330 flags = CTL_LLF_FUA; 9331 retval = CTL_RETVAL_COMPLETE; 9332 9333 switch (ctsio->cdb[0]) { 9334 case VERIFY_10: { 9335 struct scsi_verify_10 *cdb; 9336 9337 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9338 if (cdb->byte2 & SVFY_BYTCHK) 9339 bytchk = 1; 9340 if (cdb->byte2 & SVFY_DPO) 9341 flags |= CTL_LLF_DPO; 9342 lba = scsi_4btoul(cdb->addr); 9343 num_blocks = scsi_2btoul(cdb->length); 9344 break; 9345 } 9346 case VERIFY_12: { 9347 struct scsi_verify_12 *cdb; 9348 9349 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9350 if (cdb->byte2 & SVFY_BYTCHK) 9351 bytchk = 1; 9352 if (cdb->byte2 & SVFY_DPO) 9353 flags |= CTL_LLF_DPO; 9354 lba = scsi_4btoul(cdb->addr); 9355 num_blocks = scsi_4btoul(cdb->length); 9356 break; 9357 } 9358 case VERIFY_16: { 9359 struct scsi_rw_16 *cdb; 9360 9361 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9362 if (cdb->byte2 & SVFY_BYTCHK) 9363 bytchk = 1; 9364 if (cdb->byte2 & SVFY_DPO) 9365 flags |= CTL_LLF_DPO; 9366 lba = scsi_8btou64(cdb->addr); 9367 num_blocks = scsi_4btoul(cdb->length); 9368 break; 9369 } 9370 default: 9371 /* 9372 * We got a command we don't support. This shouldn't 9373 * happen, commands should be filtered out above us. 9374 */ 9375 ctl_set_invalid_opcode(ctsio); 9376 ctl_done((union ctl_io *)ctsio); 9377 return (CTL_RETVAL_COMPLETE); 9378 } 9379 9380 /* 9381 * The first check is to make sure we're in bounds, the second 9382 * check is to catch wrap-around problems. If the lba + num blocks 9383 * is less than the lba, then we've wrapped around and the block 9384 * range is invalid anyway. 9385 */ 9386 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9387 || ((lba + num_blocks) < lba)) { 9388 ctl_set_lba_out_of_range(ctsio); 9389 ctl_done((union ctl_io *)ctsio); 9390 return (CTL_RETVAL_COMPLETE); 9391 } 9392 9393 /* 9394 * According to SBC-3, a transfer length of 0 is not an error. 9395 */ 9396 if (num_blocks == 0) { 9397 ctl_set_success(ctsio); 9398 ctl_done((union ctl_io *)ctsio); 9399 return (CTL_RETVAL_COMPLETE); 9400 } 9401 9402 lbalen = (struct ctl_lba_len_flags *) 9403 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9404 lbalen->lba = lba; 9405 lbalen->len = num_blocks; 9406 if (bytchk) { 9407 lbalen->flags = CTL_LLF_COMPARE | flags; 9408 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9409 } else { 9410 lbalen->flags = CTL_LLF_VERIFY | flags; 9411 ctsio->kern_total_len = 0; 9412 } 9413 ctsio->kern_rel_offset = 0; 9414 9415 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9416 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9417 return (retval); 9418} 9419 9420int 9421ctl_report_luns(struct ctl_scsiio *ctsio) 9422{ 9423 struct scsi_report_luns *cdb; 9424 struct scsi_report_luns_data *lun_data; 9425 struct ctl_lun *lun, *request_lun; 9426 int num_luns, retval; 9427 uint32_t alloc_len, lun_datalen; 9428 int num_filled, well_known; 9429 uint32_t initidx, targ_lun_id, lun_id; 9430 9431 retval = CTL_RETVAL_COMPLETE; 9432 well_known = 0; 9433 9434 cdb = (struct scsi_report_luns *)ctsio->cdb; 9435 9436 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9437 9438 mtx_lock(&control_softc->ctl_lock); 9439 num_luns = control_softc->num_luns; 9440 mtx_unlock(&control_softc->ctl_lock); 9441 9442 switch (cdb->select_report) { 9443 case RPL_REPORT_DEFAULT: 9444 case RPL_REPORT_ALL: 9445 break; 9446 case RPL_REPORT_WELLKNOWN: 9447 well_known = 1; 9448 num_luns = 0; 9449 break; 9450 default: 9451 ctl_set_invalid_field(ctsio, 9452 /*sks_valid*/ 1, 9453 /*command*/ 1, 9454 /*field*/ 2, 9455 /*bit_valid*/ 0, 9456 /*bit*/ 0); 9457 ctl_done((union ctl_io *)ctsio); 9458 return (retval); 9459 break; /* NOTREACHED */ 9460 } 9461 9462 alloc_len = scsi_4btoul(cdb->length); 9463 /* 9464 * The initiator has to allocate at least 16 bytes for this request, 9465 * so he can at least get the header and the first LUN. Otherwise 9466 * we reject the request (per SPC-3 rev 14, section 6.21). 9467 */ 9468 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9469 sizeof(struct scsi_report_luns_lundata))) { 9470 ctl_set_invalid_field(ctsio, 9471 /*sks_valid*/ 1, 9472 /*command*/ 1, 9473 /*field*/ 6, 9474 /*bit_valid*/ 0, 9475 /*bit*/ 0); 9476 ctl_done((union ctl_io *)ctsio); 9477 return (retval); 9478 } 9479 9480 request_lun = (struct ctl_lun *) 9481 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9482 9483 lun_datalen = sizeof(*lun_data) + 9484 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9485 9486 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9487 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9488 ctsio->kern_sg_entries = 0; 9489 9490 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9491 9492 mtx_lock(&control_softc->ctl_lock); 9493 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9494 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9495 if (lun_id >= CTL_MAX_LUNS) 9496 continue; 9497 lun = control_softc->ctl_luns[lun_id]; 9498 if (lun == NULL) 9499 continue; 9500 9501 if (targ_lun_id <= 0xff) { 9502 /* 9503 * Peripheral addressing method, bus number 0. 9504 */ 9505 lun_data->luns[num_filled].lundata[0] = 9506 RPL_LUNDATA_ATYP_PERIPH; 9507 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9508 num_filled++; 9509 } else if (targ_lun_id <= 0x3fff) { 9510 /* 9511 * Flat addressing method. 9512 */ 9513 lun_data->luns[num_filled].lundata[0] = 9514 RPL_LUNDATA_ATYP_FLAT | 9515 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9516#ifdef OLDCTLHEADERS 9517 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9518 (targ_lun_id & SRLD_BUS_LUN_MASK); 9519#endif 9520 lun_data->luns[num_filled].lundata[1] = 9521#ifdef OLDCTLHEADERS 9522 targ_lun_id >> SRLD_BUS_LUN_BITS; 9523#endif 9524 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9525 num_filled++; 9526 } else { 9527 printf("ctl_report_luns: bogus LUN number %jd, " 9528 "skipping\n", (intmax_t)targ_lun_id); 9529 } 9530 /* 9531 * According to SPC-3, rev 14 section 6.21: 9532 * 9533 * "The execution of a REPORT LUNS command to any valid and 9534 * installed logical unit shall clear the REPORTED LUNS DATA 9535 * HAS CHANGED unit attention condition for all logical 9536 * units of that target with respect to the requesting 9537 * initiator. A valid and installed logical unit is one 9538 * having a PERIPHERAL QUALIFIER of 000b in the standard 9539 * INQUIRY data (see 6.4.2)." 9540 * 9541 * If request_lun is NULL, the LUN this report luns command 9542 * was issued to is either disabled or doesn't exist. In that 9543 * case, we shouldn't clear any pending lun change unit 9544 * attention. 9545 */ 9546 if (request_lun != NULL) { 9547 mtx_lock(&lun->lun_lock); 9548 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9549 mtx_unlock(&lun->lun_lock); 9550 } 9551 } 9552 mtx_unlock(&control_softc->ctl_lock); 9553 9554 /* 9555 * It's quite possible that we've returned fewer LUNs than we allocated 9556 * space for. Trim it. 9557 */ 9558 lun_datalen = sizeof(*lun_data) + 9559 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9560 9561 if (lun_datalen < alloc_len) { 9562 ctsio->residual = alloc_len - lun_datalen; 9563 ctsio->kern_data_len = lun_datalen; 9564 ctsio->kern_total_len = lun_datalen; 9565 } else { 9566 ctsio->residual = 0; 9567 ctsio->kern_data_len = alloc_len; 9568 ctsio->kern_total_len = alloc_len; 9569 } 9570 ctsio->kern_data_resid = 0; 9571 ctsio->kern_rel_offset = 0; 9572 ctsio->kern_sg_entries = 0; 9573 9574 /* 9575 * We set this to the actual data length, regardless of how much 9576 * space we actually have to return results. If the user looks at 9577 * this value, he'll know whether or not he allocated enough space 9578 * and reissue the command if necessary. We don't support well 9579 * known logical units, so if the user asks for that, return none. 9580 */ 9581 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9582 9583 /* 9584 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9585 * this request. 9586 */ 9587 ctsio->scsi_status = SCSI_STATUS_OK; 9588 9589 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9590 ctsio->be_move_done = ctl_config_move_done; 9591 ctl_datamove((union ctl_io *)ctsio); 9592 9593 return (retval); 9594} 9595 9596int 9597ctl_request_sense(struct ctl_scsiio *ctsio) 9598{ 9599 struct scsi_request_sense *cdb; 9600 struct scsi_sense_data *sense_ptr; 9601 struct ctl_lun *lun; 9602 uint32_t initidx; 9603 int have_error; 9604 scsi_sense_data_type sense_format; 9605 9606 cdb = (struct scsi_request_sense *)ctsio->cdb; 9607 9608 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9609 9610 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9611 9612 /* 9613 * Determine which sense format the user wants. 9614 */ 9615 if (cdb->byte2 & SRS_DESC) 9616 sense_format = SSD_TYPE_DESC; 9617 else 9618 sense_format = SSD_TYPE_FIXED; 9619 9620 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9621 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9622 ctsio->kern_sg_entries = 0; 9623 9624 /* 9625 * struct scsi_sense_data, which is currently set to 256 bytes, is 9626 * larger than the largest allowed value for the length field in the 9627 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9628 */ 9629 ctsio->residual = 0; 9630 ctsio->kern_data_len = cdb->length; 9631 ctsio->kern_total_len = cdb->length; 9632 9633 ctsio->kern_data_resid = 0; 9634 ctsio->kern_rel_offset = 0; 9635 ctsio->kern_sg_entries = 0; 9636 9637 /* 9638 * If we don't have a LUN, we don't have any pending sense. 9639 */ 9640 if (lun == NULL) 9641 goto no_sense; 9642 9643 have_error = 0; 9644 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9645 /* 9646 * Check for pending sense, and then for pending unit attentions. 9647 * Pending sense gets returned first, then pending unit attentions. 9648 */ 9649 mtx_lock(&lun->lun_lock); 9650#ifdef CTL_WITH_CA 9651 if (ctl_is_set(lun->have_ca, initidx)) { 9652 scsi_sense_data_type stored_format; 9653 9654 /* 9655 * Check to see which sense format was used for the stored 9656 * sense data. 9657 */ 9658 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9659 9660 /* 9661 * If the user requested a different sense format than the 9662 * one we stored, then we need to convert it to the other 9663 * format. If we're going from descriptor to fixed format 9664 * sense data, we may lose things in translation, depending 9665 * on what options were used. 9666 * 9667 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9668 * for some reason we'll just copy it out as-is. 9669 */ 9670 if ((stored_format == SSD_TYPE_FIXED) 9671 && (sense_format == SSD_TYPE_DESC)) 9672 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9673 &lun->pending_sense[initidx], 9674 (struct scsi_sense_data_desc *)sense_ptr); 9675 else if ((stored_format == SSD_TYPE_DESC) 9676 && (sense_format == SSD_TYPE_FIXED)) 9677 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9678 &lun->pending_sense[initidx], 9679 (struct scsi_sense_data_fixed *)sense_ptr); 9680 else 9681 memcpy(sense_ptr, &lun->pending_sense[initidx], 9682 ctl_min(sizeof(*sense_ptr), 9683 sizeof(lun->pending_sense[initidx]))); 9684 9685 ctl_clear_mask(lun->have_ca, initidx); 9686 have_error = 1; 9687 } else 9688#endif 9689 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9690 ctl_ua_type ua_type; 9691 9692 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9693 sense_ptr, sense_format); 9694 if (ua_type != CTL_UA_NONE) 9695 have_error = 1; 9696 } 9697 mtx_unlock(&lun->lun_lock); 9698 9699 /* 9700 * We already have a pending error, return it. 9701 */ 9702 if (have_error != 0) { 9703 /* 9704 * We report the SCSI status as OK, since the status of the 9705 * request sense command itself is OK. 9706 */ 9707 ctsio->scsi_status = SCSI_STATUS_OK; 9708 9709 /* 9710 * We report 0 for the sense length, because we aren't doing 9711 * autosense in this case. We're reporting sense as 9712 * parameter data. 9713 */ 9714 ctsio->sense_len = 0; 9715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9716 ctsio->be_move_done = ctl_config_move_done; 9717 ctl_datamove((union ctl_io *)ctsio); 9718 9719 return (CTL_RETVAL_COMPLETE); 9720 } 9721 9722no_sense: 9723 9724 /* 9725 * No sense information to report, so we report that everything is 9726 * okay. 9727 */ 9728 ctl_set_sense_data(sense_ptr, 9729 lun, 9730 sense_format, 9731 /*current_error*/ 1, 9732 /*sense_key*/ SSD_KEY_NO_SENSE, 9733 /*asc*/ 0x00, 9734 /*ascq*/ 0x00, 9735 SSD_ELEM_NONE); 9736 9737 ctsio->scsi_status = SCSI_STATUS_OK; 9738 9739 /* 9740 * We report 0 for the sense length, because we aren't doing 9741 * autosense in this case. We're reporting sense as parameter data. 9742 */ 9743 ctsio->sense_len = 0; 9744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9745 ctsio->be_move_done = ctl_config_move_done; 9746 ctl_datamove((union ctl_io *)ctsio); 9747 9748 return (CTL_RETVAL_COMPLETE); 9749} 9750 9751int 9752ctl_tur(struct ctl_scsiio *ctsio) 9753{ 9754 struct ctl_lun *lun; 9755 9756 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9757 9758 CTL_DEBUG_PRINT(("ctl_tur\n")); 9759 9760 if (lun == NULL) 9761 return (EINVAL); 9762 9763 ctsio->scsi_status = SCSI_STATUS_OK; 9764 ctsio->io_hdr.status = CTL_SUCCESS; 9765 9766 ctl_done((union ctl_io *)ctsio); 9767 9768 return (CTL_RETVAL_COMPLETE); 9769} 9770 9771#ifdef notyet 9772static int 9773ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9774{ 9775 9776} 9777#endif 9778 9779static int 9780ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9781{ 9782 struct scsi_vpd_supported_pages *pages; 9783 int sup_page_size; 9784 struct ctl_lun *lun; 9785 9786 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9787 9788 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9789 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9790 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9791 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9792 ctsio->kern_sg_entries = 0; 9793 9794 if (sup_page_size < alloc_len) { 9795 ctsio->residual = alloc_len - sup_page_size; 9796 ctsio->kern_data_len = sup_page_size; 9797 ctsio->kern_total_len = sup_page_size; 9798 } else { 9799 ctsio->residual = 0; 9800 ctsio->kern_data_len = alloc_len; 9801 ctsio->kern_total_len = alloc_len; 9802 } 9803 ctsio->kern_data_resid = 0; 9804 ctsio->kern_rel_offset = 0; 9805 ctsio->kern_sg_entries = 0; 9806 9807 /* 9808 * The control device is always connected. The disk device, on the 9809 * other hand, may not be online all the time. Need to change this 9810 * to figure out whether the disk device is actually online or not. 9811 */ 9812 if (lun != NULL) 9813 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9814 lun->be_lun->lun_type; 9815 else 9816 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9817 9818 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9819 /* Supported VPD pages */ 9820 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9821 /* Serial Number */ 9822 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9823 /* Device Identification */ 9824 pages->page_list[2] = SVPD_DEVICE_ID; 9825 /* Extended INQUIRY Data */ 9826 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9827 /* Mode Page Policy */ 9828 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9829 /* SCSI Ports */ 9830 pages->page_list[5] = SVPD_SCSI_PORTS; 9831 /* Third-party Copy */ 9832 pages->page_list[6] = SVPD_SCSI_TPC; 9833 /* Block limits */ 9834 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9835 /* Block Device Characteristics */ 9836 pages->page_list[8] = SVPD_BDC; 9837 /* Logical Block Provisioning */ 9838 pages->page_list[9] = SVPD_LBP; 9839 9840 ctsio->scsi_status = SCSI_STATUS_OK; 9841 9842 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9843 ctsio->be_move_done = ctl_config_move_done; 9844 ctl_datamove((union ctl_io *)ctsio); 9845 9846 return (CTL_RETVAL_COMPLETE); 9847} 9848 9849static int 9850ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9851{ 9852 struct scsi_vpd_unit_serial_number *sn_ptr; 9853 struct ctl_lun *lun; 9854 9855 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9856 9857 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9858 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9859 ctsio->kern_sg_entries = 0; 9860 9861 if (sizeof(*sn_ptr) < alloc_len) { 9862 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9863 ctsio->kern_data_len = sizeof(*sn_ptr); 9864 ctsio->kern_total_len = sizeof(*sn_ptr); 9865 } else { 9866 ctsio->residual = 0; 9867 ctsio->kern_data_len = alloc_len; 9868 ctsio->kern_total_len = alloc_len; 9869 } 9870 ctsio->kern_data_resid = 0; 9871 ctsio->kern_rel_offset = 0; 9872 ctsio->kern_sg_entries = 0; 9873 9874 /* 9875 * The control device is always connected. The disk device, on the 9876 * other hand, may not be online all the time. Need to change this 9877 * to figure out whether the disk device is actually online or not. 9878 */ 9879 if (lun != NULL) 9880 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9881 lun->be_lun->lun_type; 9882 else 9883 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9884 9885 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9886 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9887 /* 9888 * If we don't have a LUN, we just leave the serial number as 9889 * all spaces. 9890 */ 9891 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9892 if (lun != NULL) { 9893 strncpy((char *)sn_ptr->serial_num, 9894 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9895 } 9896 ctsio->scsi_status = SCSI_STATUS_OK; 9897 9898 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9899 ctsio->be_move_done = ctl_config_move_done; 9900 ctl_datamove((union ctl_io *)ctsio); 9901 9902 return (CTL_RETVAL_COMPLETE); 9903} 9904 9905 9906static int 9907ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9908{ 9909 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9910 struct ctl_lun *lun; 9911 int data_len; 9912 9913 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9914 9915 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9916 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9917 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9918 ctsio->kern_sg_entries = 0; 9919 9920 if (data_len < alloc_len) { 9921 ctsio->residual = alloc_len - data_len; 9922 ctsio->kern_data_len = data_len; 9923 ctsio->kern_total_len = data_len; 9924 } else { 9925 ctsio->residual = 0; 9926 ctsio->kern_data_len = alloc_len; 9927 ctsio->kern_total_len = alloc_len; 9928 } 9929 ctsio->kern_data_resid = 0; 9930 ctsio->kern_rel_offset = 0; 9931 ctsio->kern_sg_entries = 0; 9932 9933 /* 9934 * The control device is always connected. The disk device, on the 9935 * other hand, may not be online all the time. 9936 */ 9937 if (lun != NULL) 9938 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9939 lun->be_lun->lun_type; 9940 else 9941 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9942 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9943 eid_ptr->page_length = data_len - 4; 9944 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9945 eid_ptr->flags3 = SVPD_EID_V_SUP; 9946 9947 ctsio->scsi_status = SCSI_STATUS_OK; 9948 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9949 ctsio->be_move_done = ctl_config_move_done; 9950 ctl_datamove((union ctl_io *)ctsio); 9951 9952 return (CTL_RETVAL_COMPLETE); 9953} 9954 9955static int 9956ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9957{ 9958 struct scsi_vpd_mode_page_policy *mpp_ptr; 9959 struct ctl_lun *lun; 9960 int data_len; 9961 9962 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9963 9964 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9965 sizeof(struct scsi_vpd_mode_page_policy_descr); 9966 9967 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9968 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9969 ctsio->kern_sg_entries = 0; 9970 9971 if (data_len < alloc_len) { 9972 ctsio->residual = alloc_len - data_len; 9973 ctsio->kern_data_len = data_len; 9974 ctsio->kern_total_len = data_len; 9975 } else { 9976 ctsio->residual = 0; 9977 ctsio->kern_data_len = alloc_len; 9978 ctsio->kern_total_len = alloc_len; 9979 } 9980 ctsio->kern_data_resid = 0; 9981 ctsio->kern_rel_offset = 0; 9982 ctsio->kern_sg_entries = 0; 9983 9984 /* 9985 * The control device is always connected. The disk device, on the 9986 * other hand, may not be online all the time. 9987 */ 9988 if (lun != NULL) 9989 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9990 lun->be_lun->lun_type; 9991 else 9992 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9993 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9994 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9995 mpp_ptr->descr[0].page_code = 0x3f; 9996 mpp_ptr->descr[0].subpage_code = 0xff; 9997 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9998 9999 ctsio->scsi_status = SCSI_STATUS_OK; 10000 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10001 ctsio->be_move_done = ctl_config_move_done; 10002 ctl_datamove((union ctl_io *)ctsio); 10003 10004 return (CTL_RETVAL_COMPLETE); 10005} 10006 10007static int 10008ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10009{ 10010 struct scsi_vpd_device_id *devid_ptr; 10011 struct scsi_vpd_id_descriptor *desc; 10012 struct ctl_softc *ctl_softc; 10013 struct ctl_lun *lun; 10014 struct ctl_port *port; 10015 int data_len; 10016 uint8_t proto; 10017 10018 ctl_softc = control_softc; 10019 10020 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10021 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10022 10023 data_len = sizeof(struct scsi_vpd_device_id) + 10024 sizeof(struct scsi_vpd_id_descriptor) + 10025 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10026 sizeof(struct scsi_vpd_id_descriptor) + 10027 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10028 if (lun && lun->lun_devid) 10029 data_len += lun->lun_devid->len; 10030 if (port->port_devid) 10031 data_len += port->port_devid->len; 10032 if (port->target_devid) 10033 data_len += port->target_devid->len; 10034 10035 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10036 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10037 ctsio->kern_sg_entries = 0; 10038 10039 if (data_len < alloc_len) { 10040 ctsio->residual = alloc_len - data_len; 10041 ctsio->kern_data_len = data_len; 10042 ctsio->kern_total_len = data_len; 10043 } else { 10044 ctsio->residual = 0; 10045 ctsio->kern_data_len = alloc_len; 10046 ctsio->kern_total_len = alloc_len; 10047 } 10048 ctsio->kern_data_resid = 0; 10049 ctsio->kern_rel_offset = 0; 10050 ctsio->kern_sg_entries = 0; 10051 10052 /* 10053 * The control device is always connected. The disk device, on the 10054 * other hand, may not be online all the time. 10055 */ 10056 if (lun != NULL) 10057 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10058 lun->be_lun->lun_type; 10059 else 10060 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10061 devid_ptr->page_code = SVPD_DEVICE_ID; 10062 scsi_ulto2b(data_len - 4, devid_ptr->length); 10063 10064 if (port->port_type == CTL_PORT_FC) 10065 proto = SCSI_PROTO_FC << 4; 10066 else if (port->port_type == CTL_PORT_ISCSI) 10067 proto = SCSI_PROTO_ISCSI << 4; 10068 else 10069 proto = SCSI_PROTO_SPI << 4; 10070 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10071 10072 /* 10073 * We're using a LUN association here. i.e., this device ID is a 10074 * per-LUN identifier. 10075 */ 10076 if (lun && lun->lun_devid) { 10077 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10078 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10079 lun->lun_devid->len); 10080 } 10081 10082 /* 10083 * This is for the WWPN which is a port association. 10084 */ 10085 if (port->port_devid) { 10086 memcpy(desc, port->port_devid->data, port->port_devid->len); 10087 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10088 port->port_devid->len); 10089 } 10090 10091 /* 10092 * This is for the Relative Target Port(type 4h) identifier 10093 */ 10094 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10095 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10096 SVPD_ID_TYPE_RELTARG; 10097 desc->length = 4; 10098 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10099 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10100 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10101 10102 /* 10103 * This is for the Target Port Group(type 5h) identifier 10104 */ 10105 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10106 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10107 SVPD_ID_TYPE_TPORTGRP; 10108 desc->length = 4; 10109 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10110 &desc->identifier[2]); 10111 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10112 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10113 10114 /* 10115 * This is for the Target identifier 10116 */ 10117 if (port->target_devid) { 10118 memcpy(desc, port->target_devid->data, port->target_devid->len); 10119 } 10120 10121 ctsio->scsi_status = SCSI_STATUS_OK; 10122 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10123 ctsio->be_move_done = ctl_config_move_done; 10124 ctl_datamove((union ctl_io *)ctsio); 10125 10126 return (CTL_RETVAL_COMPLETE); 10127} 10128 10129static int 10130ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10131{ 10132 struct ctl_softc *softc = control_softc; 10133 struct scsi_vpd_scsi_ports *sp; 10134 struct scsi_vpd_port_designation *pd; 10135 struct scsi_vpd_port_designation_cont *pdc; 10136 struct ctl_lun *lun; 10137 struct ctl_port *port; 10138 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10139 int num_target_port_groups, single; 10140 10141 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10142 10143 single = ctl_is_single; 10144 if (single) 10145 num_target_port_groups = 1; 10146 else 10147 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10148 num_target_ports = 0; 10149 iid_len = 0; 10150 id_len = 0; 10151 mtx_lock(&softc->ctl_lock); 10152 STAILQ_FOREACH(port, &softc->port_list, links) { 10153 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10154 continue; 10155 if (lun != NULL && 10156 ctl_map_lun_back(port->targ_port, lun->lun) >= 10157 CTL_MAX_LUNS) 10158 continue; 10159 num_target_ports++; 10160 if (port->init_devid) 10161 iid_len += port->init_devid->len; 10162 if (port->port_devid) 10163 id_len += port->port_devid->len; 10164 } 10165 mtx_unlock(&softc->ctl_lock); 10166 10167 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10168 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10169 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10170 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10171 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10172 ctsio->kern_sg_entries = 0; 10173 10174 if (data_len < alloc_len) { 10175 ctsio->residual = alloc_len - data_len; 10176 ctsio->kern_data_len = data_len; 10177 ctsio->kern_total_len = data_len; 10178 } else { 10179 ctsio->residual = 0; 10180 ctsio->kern_data_len = alloc_len; 10181 ctsio->kern_total_len = alloc_len; 10182 } 10183 ctsio->kern_data_resid = 0; 10184 ctsio->kern_rel_offset = 0; 10185 ctsio->kern_sg_entries = 0; 10186 10187 /* 10188 * The control device is always connected. The disk device, on the 10189 * other hand, may not be online all the time. Need to change this 10190 * to figure out whether the disk device is actually online or not. 10191 */ 10192 if (lun != NULL) 10193 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10194 lun->be_lun->lun_type; 10195 else 10196 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10197 10198 sp->page_code = SVPD_SCSI_PORTS; 10199 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10200 sp->page_length); 10201 pd = &sp->design[0]; 10202 10203 mtx_lock(&softc->ctl_lock); 10204 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10205 pg = 0; 10206 else 10207 pg = 1; 10208 for (g = 0; g < num_target_port_groups; g++) { 10209 STAILQ_FOREACH(port, &softc->port_list, links) { 10210 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10211 continue; 10212 if (lun != NULL && 10213 ctl_map_lun_back(port->targ_port, lun->lun) >= 10214 CTL_MAX_LUNS) 10215 continue; 10216 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10217 scsi_ulto2b(p, pd->relative_port_id); 10218 if (port->init_devid && g == pg) { 10219 iid_len = port->init_devid->len; 10220 memcpy(pd->initiator_transportid, 10221 port->init_devid->data, port->init_devid->len); 10222 } else 10223 iid_len = 0; 10224 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10225 pdc = (struct scsi_vpd_port_designation_cont *) 10226 (&pd->initiator_transportid[iid_len]); 10227 if (port->port_devid && g == pg) { 10228 id_len = port->port_devid->len; 10229 memcpy(pdc->target_port_descriptors, 10230 port->port_devid->data, port->port_devid->len); 10231 } else 10232 id_len = 0; 10233 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10234 pd = (struct scsi_vpd_port_designation *) 10235 ((uint8_t *)pdc->target_port_descriptors + id_len); 10236 } 10237 } 10238 mtx_unlock(&softc->ctl_lock); 10239 10240 ctsio->scsi_status = SCSI_STATUS_OK; 10241 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10242 ctsio->be_move_done = ctl_config_move_done; 10243 ctl_datamove((union ctl_io *)ctsio); 10244 10245 return (CTL_RETVAL_COMPLETE); 10246} 10247 10248static int 10249ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10250{ 10251 struct scsi_vpd_block_limits *bl_ptr; 10252 struct ctl_lun *lun; 10253 int bs; 10254 10255 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10256 10257 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10258 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10259 ctsio->kern_sg_entries = 0; 10260 10261 if (sizeof(*bl_ptr) < alloc_len) { 10262 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10263 ctsio->kern_data_len = sizeof(*bl_ptr); 10264 ctsio->kern_total_len = sizeof(*bl_ptr); 10265 } else { 10266 ctsio->residual = 0; 10267 ctsio->kern_data_len = alloc_len; 10268 ctsio->kern_total_len = alloc_len; 10269 } 10270 ctsio->kern_data_resid = 0; 10271 ctsio->kern_rel_offset = 0; 10272 ctsio->kern_sg_entries = 0; 10273 10274 /* 10275 * The control device is always connected. The disk device, on the 10276 * other hand, may not be online all the time. Need to change this 10277 * to figure out whether the disk device is actually online or not. 10278 */ 10279 if (lun != NULL) 10280 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10281 lun->be_lun->lun_type; 10282 else 10283 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10284 10285 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10286 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10287 bl_ptr->max_cmp_write_len = 0xff; 10288 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10289 if (lun != NULL) { 10290 bs = lun->be_lun->blocksize; 10291 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10292 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10293 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10294 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10295 if (lun->be_lun->pblockexp != 0) { 10296 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10297 bl_ptr->opt_unmap_grain); 10298 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10299 bl_ptr->unmap_grain_align); 10300 } 10301 } 10302 } 10303 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10304 10305 ctsio->scsi_status = SCSI_STATUS_OK; 10306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10307 ctsio->be_move_done = ctl_config_move_done; 10308 ctl_datamove((union ctl_io *)ctsio); 10309 10310 return (CTL_RETVAL_COMPLETE); 10311} 10312 10313static int 10314ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10315{ 10316 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10317 struct ctl_lun *lun; 10318 10319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10320 10321 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10322 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10323 ctsio->kern_sg_entries = 0; 10324 10325 if (sizeof(*bdc_ptr) < alloc_len) { 10326 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10327 ctsio->kern_data_len = sizeof(*bdc_ptr); 10328 ctsio->kern_total_len = sizeof(*bdc_ptr); 10329 } else { 10330 ctsio->residual = 0; 10331 ctsio->kern_data_len = alloc_len; 10332 ctsio->kern_total_len = alloc_len; 10333 } 10334 ctsio->kern_data_resid = 0; 10335 ctsio->kern_rel_offset = 0; 10336 ctsio->kern_sg_entries = 0; 10337 10338 /* 10339 * The control device is always connected. The disk device, on the 10340 * other hand, may not be online all the time. Need to change this 10341 * to figure out whether the disk device is actually online or not. 10342 */ 10343 if (lun != NULL) 10344 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10345 lun->be_lun->lun_type; 10346 else 10347 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10348 bdc_ptr->page_code = SVPD_BDC; 10349 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10350 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10351 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10352 10353 ctsio->scsi_status = SCSI_STATUS_OK; 10354 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10355 ctsio->be_move_done = ctl_config_move_done; 10356 ctl_datamove((union ctl_io *)ctsio); 10357 10358 return (CTL_RETVAL_COMPLETE); 10359} 10360 10361static int 10362ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10363{ 10364 struct scsi_vpd_logical_block_prov *lbp_ptr; 10365 struct ctl_lun *lun; 10366 10367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10368 10369 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10370 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10371 ctsio->kern_sg_entries = 0; 10372 10373 if (sizeof(*lbp_ptr) < alloc_len) { 10374 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10375 ctsio->kern_data_len = sizeof(*lbp_ptr); 10376 ctsio->kern_total_len = sizeof(*lbp_ptr); 10377 } else { 10378 ctsio->residual = 0; 10379 ctsio->kern_data_len = alloc_len; 10380 ctsio->kern_total_len = alloc_len; 10381 } 10382 ctsio->kern_data_resid = 0; 10383 ctsio->kern_rel_offset = 0; 10384 ctsio->kern_sg_entries = 0; 10385 10386 /* 10387 * The control device is always connected. The disk device, on the 10388 * other hand, may not be online all the time. Need to change this 10389 * to figure out whether the disk device is actually online or not. 10390 */ 10391 if (lun != NULL) 10392 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10393 lun->be_lun->lun_type; 10394 else 10395 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10396 10397 lbp_ptr->page_code = SVPD_LBP; 10398 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10399 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10400 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10401 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10402 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10403 } 10404 10405 ctsio->scsi_status = SCSI_STATUS_OK; 10406 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10407 ctsio->be_move_done = ctl_config_move_done; 10408 ctl_datamove((union ctl_io *)ctsio); 10409 10410 return (CTL_RETVAL_COMPLETE); 10411} 10412 10413static int 10414ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10415{ 10416 struct scsi_inquiry *cdb; 10417 struct ctl_lun *lun; 10418 int alloc_len, retval; 10419 10420 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10421 cdb = (struct scsi_inquiry *)ctsio->cdb; 10422 10423 retval = CTL_RETVAL_COMPLETE; 10424 10425 alloc_len = scsi_2btoul(cdb->length); 10426 10427 switch (cdb->page_code) { 10428 case SVPD_SUPPORTED_PAGES: 10429 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10430 break; 10431 case SVPD_UNIT_SERIAL_NUMBER: 10432 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10433 break; 10434 case SVPD_DEVICE_ID: 10435 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10436 break; 10437 case SVPD_EXTENDED_INQUIRY_DATA: 10438 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10439 break; 10440 case SVPD_MODE_PAGE_POLICY: 10441 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10442 break; 10443 case SVPD_SCSI_PORTS: 10444 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10445 break; 10446 case SVPD_SCSI_TPC: 10447 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10448 break; 10449 case SVPD_BLOCK_LIMITS: 10450 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10451 break; 10452 case SVPD_BDC: 10453 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10454 break; 10455 case SVPD_LBP: 10456 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10457 break; 10458 default: 10459 ctl_set_invalid_field(ctsio, 10460 /*sks_valid*/ 1, 10461 /*command*/ 1, 10462 /*field*/ 2, 10463 /*bit_valid*/ 0, 10464 /*bit*/ 0); 10465 ctl_done((union ctl_io *)ctsio); 10466 retval = CTL_RETVAL_COMPLETE; 10467 break; 10468 } 10469 10470 return (retval); 10471} 10472 10473static int 10474ctl_inquiry_std(struct ctl_scsiio *ctsio) 10475{ 10476 struct scsi_inquiry_data *inq_ptr; 10477 struct scsi_inquiry *cdb; 10478 struct ctl_softc *ctl_softc; 10479 struct ctl_lun *lun; 10480 char *val; 10481 uint32_t alloc_len, data_len; 10482 ctl_port_type port_type; 10483 10484 ctl_softc = control_softc; 10485 10486 /* 10487 * Figure out whether we're talking to a Fibre Channel port or not. 10488 * We treat the ioctl front end, and any SCSI adapters, as packetized 10489 * SCSI front ends. 10490 */ 10491 port_type = ctl_softc->ctl_ports[ 10492 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10493 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10494 port_type = CTL_PORT_SCSI; 10495 10496 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10497 cdb = (struct scsi_inquiry *)ctsio->cdb; 10498 alloc_len = scsi_2btoul(cdb->length); 10499 10500 /* 10501 * We malloc the full inquiry data size here and fill it 10502 * in. If the user only asks for less, we'll give him 10503 * that much. 10504 */ 10505 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10506 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10507 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10508 ctsio->kern_sg_entries = 0; 10509 ctsio->kern_data_resid = 0; 10510 ctsio->kern_rel_offset = 0; 10511 10512 if (data_len < alloc_len) { 10513 ctsio->residual = alloc_len - data_len; 10514 ctsio->kern_data_len = data_len; 10515 ctsio->kern_total_len = data_len; 10516 } else { 10517 ctsio->residual = 0; 10518 ctsio->kern_data_len = alloc_len; 10519 ctsio->kern_total_len = alloc_len; 10520 } 10521 10522 /* 10523 * If we have a LUN configured, report it as connected. Otherwise, 10524 * report that it is offline or no device is supported, depending 10525 * on the value of inquiry_pq_no_lun. 10526 * 10527 * According to the spec (SPC-4 r34), the peripheral qualifier 10528 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10529 * 10530 * "A peripheral device having the specified peripheral device type 10531 * is not connected to this logical unit. However, the device 10532 * server is capable of supporting the specified peripheral device 10533 * type on this logical unit." 10534 * 10535 * According to the same spec, the peripheral qualifier 10536 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10537 * 10538 * "The device server is not capable of supporting a peripheral 10539 * device on this logical unit. For this peripheral qualifier the 10540 * peripheral device type shall be set to 1Fh. All other peripheral 10541 * device type values are reserved for this peripheral qualifier." 10542 * 10543 * Given the text, it would seem that we probably want to report that 10544 * the LUN is offline here. There is no LUN connected, but we can 10545 * support a LUN at the given LUN number. 10546 * 10547 * In the real world, though, it sounds like things are a little 10548 * different: 10549 * 10550 * - Linux, when presented with a LUN with the offline peripheral 10551 * qualifier, will create an sg driver instance for it. So when 10552 * you attach it to CTL, you wind up with a ton of sg driver 10553 * instances. (One for every LUN that Linux bothered to probe.) 10554 * Linux does this despite the fact that it issues a REPORT LUNs 10555 * to LUN 0 to get the inventory of supported LUNs. 10556 * 10557 * - There is other anecdotal evidence (from Emulex folks) about 10558 * arrays that use the offline peripheral qualifier for LUNs that 10559 * are on the "passive" path in an active/passive array. 10560 * 10561 * So the solution is provide a hopefully reasonable default 10562 * (return bad/no LUN) and allow the user to change the behavior 10563 * with a tunable/sysctl variable. 10564 */ 10565 if (lun != NULL) 10566 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10567 lun->be_lun->lun_type; 10568 else if (ctl_softc->inquiry_pq_no_lun == 0) 10569 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10570 else 10571 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10572 10573 /* RMB in byte 2 is 0 */ 10574 inq_ptr->version = SCSI_REV_SPC4; 10575 10576 /* 10577 * According to SAM-3, even if a device only supports a single 10578 * level of LUN addressing, it should still set the HISUP bit: 10579 * 10580 * 4.9.1 Logical unit numbers overview 10581 * 10582 * All logical unit number formats described in this standard are 10583 * hierarchical in structure even when only a single level in that 10584 * hierarchy is used. The HISUP bit shall be set to one in the 10585 * standard INQUIRY data (see SPC-2) when any logical unit number 10586 * format described in this standard is used. Non-hierarchical 10587 * formats are outside the scope of this standard. 10588 * 10589 * Therefore we set the HiSup bit here. 10590 * 10591 * The reponse format is 2, per SPC-3. 10592 */ 10593 inq_ptr->response_format = SID_HiSup | 2; 10594 10595 inq_ptr->additional_length = data_len - 10596 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10597 CTL_DEBUG_PRINT(("additional_length = %d\n", 10598 inq_ptr->additional_length)); 10599 10600 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10601 /* 16 bit addressing */ 10602 if (port_type == CTL_PORT_SCSI) 10603 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10604 /* XXX set the SID_MultiP bit here if we're actually going to 10605 respond on multiple ports */ 10606 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10607 10608 /* 16 bit data bus, synchronous transfers */ 10609 if (port_type == CTL_PORT_SCSI) 10610 inq_ptr->flags = SID_WBus16 | SID_Sync; 10611 /* 10612 * XXX KDM do we want to support tagged queueing on the control 10613 * device at all? 10614 */ 10615 if ((lun == NULL) 10616 || (lun->be_lun->lun_type != T_PROCESSOR)) 10617 inq_ptr->flags |= SID_CmdQue; 10618 /* 10619 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10620 * We have 8 bytes for the vendor name, and 16 bytes for the device 10621 * name and 4 bytes for the revision. 10622 */ 10623 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10624 "vendor")) == NULL) { 10625 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10626 } else { 10627 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10628 strncpy(inq_ptr->vendor, val, 10629 min(sizeof(inq_ptr->vendor), strlen(val))); 10630 } 10631 if (lun == NULL) { 10632 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10633 sizeof(inq_ptr->product)); 10634 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10635 switch (lun->be_lun->lun_type) { 10636 case T_DIRECT: 10637 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10638 sizeof(inq_ptr->product)); 10639 break; 10640 case T_PROCESSOR: 10641 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10642 sizeof(inq_ptr->product)); 10643 break; 10644 default: 10645 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10646 sizeof(inq_ptr->product)); 10647 break; 10648 } 10649 } else { 10650 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10651 strncpy(inq_ptr->product, val, 10652 min(sizeof(inq_ptr->product), strlen(val))); 10653 } 10654 10655 /* 10656 * XXX make this a macro somewhere so it automatically gets 10657 * incremented when we make changes. 10658 */ 10659 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10660 "revision")) == NULL) { 10661 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10662 } else { 10663 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10664 strncpy(inq_ptr->revision, val, 10665 min(sizeof(inq_ptr->revision), strlen(val))); 10666 } 10667 10668 /* 10669 * For parallel SCSI, we support double transition and single 10670 * transition clocking. We also support QAS (Quick Arbitration 10671 * and Selection) and Information Unit transfers on both the 10672 * control and array devices. 10673 */ 10674 if (port_type == CTL_PORT_SCSI) 10675 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10676 SID_SPI_IUS; 10677 10678 /* SAM-5 (no version claimed) */ 10679 scsi_ulto2b(0x00A0, inq_ptr->version1); 10680 /* SPC-4 (no version claimed) */ 10681 scsi_ulto2b(0x0460, inq_ptr->version2); 10682 if (port_type == CTL_PORT_FC) { 10683 /* FCP-2 ANSI INCITS.350:2003 */ 10684 scsi_ulto2b(0x0917, inq_ptr->version3); 10685 } else if (port_type == CTL_PORT_SCSI) { 10686 /* SPI-4 ANSI INCITS.362:200x */ 10687 scsi_ulto2b(0x0B56, inq_ptr->version3); 10688 } else if (port_type == CTL_PORT_ISCSI) { 10689 /* iSCSI (no version claimed) */ 10690 scsi_ulto2b(0x0960, inq_ptr->version3); 10691 } else if (port_type == CTL_PORT_SAS) { 10692 /* SAS (no version claimed) */ 10693 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10694 } 10695 10696 if (lun == NULL) { 10697 /* SBC-3 (no version claimed) */ 10698 scsi_ulto2b(0x04C0, inq_ptr->version4); 10699 } else { 10700 switch (lun->be_lun->lun_type) { 10701 case T_DIRECT: 10702 /* SBC-3 (no version claimed) */ 10703 scsi_ulto2b(0x04C0, inq_ptr->version4); 10704 break; 10705 case T_PROCESSOR: 10706 default: 10707 break; 10708 } 10709 } 10710 10711 ctsio->scsi_status = SCSI_STATUS_OK; 10712 if (ctsio->kern_data_len > 0) { 10713 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10714 ctsio->be_move_done = ctl_config_move_done; 10715 ctl_datamove((union ctl_io *)ctsio); 10716 } else { 10717 ctsio->io_hdr.status = CTL_SUCCESS; 10718 ctl_done((union ctl_io *)ctsio); 10719 } 10720 10721 return (CTL_RETVAL_COMPLETE); 10722} 10723 10724int 10725ctl_inquiry(struct ctl_scsiio *ctsio) 10726{ 10727 struct scsi_inquiry *cdb; 10728 int retval; 10729 10730 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10731 10732 cdb = (struct scsi_inquiry *)ctsio->cdb; 10733 if (cdb->byte2 & SI_EVPD) 10734 retval = ctl_inquiry_evpd(ctsio); 10735 else if (cdb->page_code == 0) 10736 retval = ctl_inquiry_std(ctsio); 10737 else { 10738 ctl_set_invalid_field(ctsio, 10739 /*sks_valid*/ 1, 10740 /*command*/ 1, 10741 /*field*/ 2, 10742 /*bit_valid*/ 0, 10743 /*bit*/ 0); 10744 ctl_done((union ctl_io *)ctsio); 10745 return (CTL_RETVAL_COMPLETE); 10746 } 10747 10748 return (retval); 10749} 10750 10751/* 10752 * For known CDB types, parse the LBA and length. 10753 */ 10754static int 10755ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10756{ 10757 if (io->io_hdr.io_type != CTL_IO_SCSI) 10758 return (1); 10759 10760 switch (io->scsiio.cdb[0]) { 10761 case COMPARE_AND_WRITE: { 10762 struct scsi_compare_and_write *cdb; 10763 10764 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10765 10766 *lba = scsi_8btou64(cdb->addr); 10767 *len = cdb->length; 10768 break; 10769 } 10770 case READ_6: 10771 case WRITE_6: { 10772 struct scsi_rw_6 *cdb; 10773 10774 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10775 10776 *lba = scsi_3btoul(cdb->addr); 10777 /* only 5 bits are valid in the most significant address byte */ 10778 *lba &= 0x1fffff; 10779 *len = cdb->length; 10780 break; 10781 } 10782 case READ_10: 10783 case WRITE_10: { 10784 struct scsi_rw_10 *cdb; 10785 10786 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10787 10788 *lba = scsi_4btoul(cdb->addr); 10789 *len = scsi_2btoul(cdb->length); 10790 break; 10791 } 10792 case WRITE_VERIFY_10: { 10793 struct scsi_write_verify_10 *cdb; 10794 10795 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10796 10797 *lba = scsi_4btoul(cdb->addr); 10798 *len = scsi_2btoul(cdb->length); 10799 break; 10800 } 10801 case READ_12: 10802 case WRITE_12: { 10803 struct scsi_rw_12 *cdb; 10804 10805 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10806 10807 *lba = scsi_4btoul(cdb->addr); 10808 *len = scsi_4btoul(cdb->length); 10809 break; 10810 } 10811 case WRITE_VERIFY_12: { 10812 struct scsi_write_verify_12 *cdb; 10813 10814 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10815 10816 *lba = scsi_4btoul(cdb->addr); 10817 *len = scsi_4btoul(cdb->length); 10818 break; 10819 } 10820 case READ_16: 10821 case WRITE_16: { 10822 struct scsi_rw_16 *cdb; 10823 10824 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10825 10826 *lba = scsi_8btou64(cdb->addr); 10827 *len = scsi_4btoul(cdb->length); 10828 break; 10829 } 10830 case WRITE_VERIFY_16: { 10831 struct scsi_write_verify_16 *cdb; 10832 10833 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10834 10835 10836 *lba = scsi_8btou64(cdb->addr); 10837 *len = scsi_4btoul(cdb->length); 10838 break; 10839 } 10840 case WRITE_SAME_10: { 10841 struct scsi_write_same_10 *cdb; 10842 10843 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10844 10845 *lba = scsi_4btoul(cdb->addr); 10846 *len = scsi_2btoul(cdb->length); 10847 break; 10848 } 10849 case WRITE_SAME_16: { 10850 struct scsi_write_same_16 *cdb; 10851 10852 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10853 10854 *lba = scsi_8btou64(cdb->addr); 10855 *len = scsi_4btoul(cdb->length); 10856 break; 10857 } 10858 case VERIFY_10: { 10859 struct scsi_verify_10 *cdb; 10860 10861 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10862 10863 *lba = scsi_4btoul(cdb->addr); 10864 *len = scsi_2btoul(cdb->length); 10865 break; 10866 } 10867 case VERIFY_12: { 10868 struct scsi_verify_12 *cdb; 10869 10870 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10871 10872 *lba = scsi_4btoul(cdb->addr); 10873 *len = scsi_4btoul(cdb->length); 10874 break; 10875 } 10876 case VERIFY_16: { 10877 struct scsi_verify_16 *cdb; 10878 10879 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10880 10881 *lba = scsi_8btou64(cdb->addr); 10882 *len = scsi_4btoul(cdb->length); 10883 break; 10884 } 10885 case UNMAP: { 10886 *lba = 0; 10887 *len = UINT64_MAX; 10888 break; 10889 } 10890 default: 10891 return (1); 10892 break; /* NOTREACHED */ 10893 } 10894 10895 return (0); 10896} 10897 10898static ctl_action 10899ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10900{ 10901 uint64_t endlba1, endlba2; 10902 10903 endlba1 = lba1 + len1 - 1; 10904 endlba2 = lba2 + len2 - 1; 10905 10906 if ((endlba1 < lba2) 10907 || (endlba2 < lba1)) 10908 return (CTL_ACTION_PASS); 10909 else 10910 return (CTL_ACTION_BLOCK); 10911} 10912 10913static int 10914ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10915{ 10916 struct ctl_ptr_len_flags *ptrlen; 10917 struct scsi_unmap_desc *buf, *end, *range; 10918 uint64_t lba; 10919 uint32_t len; 10920 10921 /* If not UNMAP -- go other way. */ 10922 if (io->io_hdr.io_type != CTL_IO_SCSI || 10923 io->scsiio.cdb[0] != UNMAP) 10924 return (CTL_ACTION_ERROR); 10925 10926 /* If UNMAP without data -- block and wait for data. */ 10927 ptrlen = (struct ctl_ptr_len_flags *) 10928 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10929 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10930 ptrlen->ptr == NULL) 10931 return (CTL_ACTION_BLOCK); 10932 10933 /* UNMAP with data -- check for collision. */ 10934 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10935 end = buf + ptrlen->len / sizeof(*buf); 10936 for (range = buf; range < end; range++) { 10937 lba = scsi_8btou64(range->lba); 10938 len = scsi_4btoul(range->length); 10939 if ((lba < lba2 + len2) && (lba + len > lba2)) 10940 return (CTL_ACTION_BLOCK); 10941 } 10942 return (CTL_ACTION_PASS); 10943} 10944 10945static ctl_action 10946ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10947{ 10948 uint64_t lba1, lba2; 10949 uint64_t len1, len2; 10950 int retval; 10951 10952 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10953 return (CTL_ACTION_ERROR); 10954 10955 retval = ctl_extent_check_unmap(io2, lba1, len1); 10956 if (retval != CTL_ACTION_ERROR) 10957 return (retval); 10958 10959 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10960 return (CTL_ACTION_ERROR); 10961 10962 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10963} 10964 10965static ctl_action 10966ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10967 union ctl_io *ooa_io) 10968{ 10969 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10970 ctl_serialize_action *serialize_row; 10971 10972 /* 10973 * The initiator attempted multiple untagged commands at the same 10974 * time. Can't do that. 10975 */ 10976 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10977 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10978 && ((pending_io->io_hdr.nexus.targ_port == 10979 ooa_io->io_hdr.nexus.targ_port) 10980 && (pending_io->io_hdr.nexus.initid.id == 10981 ooa_io->io_hdr.nexus.initid.id)) 10982 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10983 return (CTL_ACTION_OVERLAP); 10984 10985 /* 10986 * The initiator attempted to send multiple tagged commands with 10987 * the same ID. (It's fine if different initiators have the same 10988 * tag ID.) 10989 * 10990 * Even if all of those conditions are true, we don't kill the I/O 10991 * if the command ahead of us has been aborted. We won't end up 10992 * sending it to the FETD, and it's perfectly legal to resend a 10993 * command with the same tag number as long as the previous 10994 * instance of this tag number has been aborted somehow. 10995 */ 10996 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10997 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10998 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10999 && ((pending_io->io_hdr.nexus.targ_port == 11000 ooa_io->io_hdr.nexus.targ_port) 11001 && (pending_io->io_hdr.nexus.initid.id == 11002 ooa_io->io_hdr.nexus.initid.id)) 11003 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11004 return (CTL_ACTION_OVERLAP_TAG); 11005 11006 /* 11007 * If we get a head of queue tag, SAM-3 says that we should 11008 * immediately execute it. 11009 * 11010 * What happens if this command would normally block for some other 11011 * reason? e.g. a request sense with a head of queue tag 11012 * immediately after a write. Normally that would block, but this 11013 * will result in its getting executed immediately... 11014 * 11015 * We currently return "pass" instead of "skip", so we'll end up 11016 * going through the rest of the queue to check for overlapped tags. 11017 * 11018 * XXX KDM check for other types of blockage first?? 11019 */ 11020 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11021 return (CTL_ACTION_PASS); 11022 11023 /* 11024 * Ordered tags have to block until all items ahead of them 11025 * have completed. If we get called with an ordered tag, we always 11026 * block, if something else is ahead of us in the queue. 11027 */ 11028 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11029 return (CTL_ACTION_BLOCK); 11030 11031 /* 11032 * Simple tags get blocked until all head of queue and ordered tags 11033 * ahead of them have completed. I'm lumping untagged commands in 11034 * with simple tags here. XXX KDM is that the right thing to do? 11035 */ 11036 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11037 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11038 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11039 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11040 return (CTL_ACTION_BLOCK); 11041 11042 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11043 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11044 11045 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11046 11047 switch (serialize_row[pending_entry->seridx]) { 11048 case CTL_SER_BLOCK: 11049 return (CTL_ACTION_BLOCK); 11050 case CTL_SER_EXTENT: 11051 return (ctl_extent_check(pending_io, ooa_io)); 11052 case CTL_SER_EXTENTOPT: 11053 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11054 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11055 return (ctl_extent_check(pending_io, ooa_io)); 11056 /* FALLTHROUGH */ 11057 case CTL_SER_PASS: 11058 return (CTL_ACTION_PASS); 11059 case CTL_SER_BLOCKOPT: 11060 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11061 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11062 return (CTL_ACTION_BLOCK); 11063 return (CTL_ACTION_PASS); 11064 case CTL_SER_SKIP: 11065 return (CTL_ACTION_SKIP); 11066 default: 11067 panic("invalid serialization value %d", 11068 serialize_row[pending_entry->seridx]); 11069 } 11070 11071 return (CTL_ACTION_ERROR); 11072} 11073 11074/* 11075 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11076 * Assumptions: 11077 * - pending_io is generally either incoming, or on the blocked queue 11078 * - starting I/O is the I/O we want to start the check with. 11079 */ 11080static ctl_action 11081ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11082 union ctl_io *starting_io) 11083{ 11084 union ctl_io *ooa_io; 11085 ctl_action action; 11086 11087 mtx_assert(&lun->lun_lock, MA_OWNED); 11088 11089 /* 11090 * Run back along the OOA queue, starting with the current 11091 * blocked I/O and going through every I/O before it on the 11092 * queue. If starting_io is NULL, we'll just end up returning 11093 * CTL_ACTION_PASS. 11094 */ 11095 for (ooa_io = starting_io; ooa_io != NULL; 11096 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11097 ooa_links)){ 11098 11099 /* 11100 * This routine just checks to see whether 11101 * cur_blocked is blocked by ooa_io, which is ahead 11102 * of it in the queue. It doesn't queue/dequeue 11103 * cur_blocked. 11104 */ 11105 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11106 switch (action) { 11107 case CTL_ACTION_BLOCK: 11108 case CTL_ACTION_OVERLAP: 11109 case CTL_ACTION_OVERLAP_TAG: 11110 case CTL_ACTION_SKIP: 11111 case CTL_ACTION_ERROR: 11112 return (action); 11113 break; /* NOTREACHED */ 11114 case CTL_ACTION_PASS: 11115 break; 11116 default: 11117 panic("invalid action %d", action); 11118 break; /* NOTREACHED */ 11119 } 11120 } 11121 11122 return (CTL_ACTION_PASS); 11123} 11124 11125/* 11126 * Assumptions: 11127 * - An I/O has just completed, and has been removed from the per-LUN OOA 11128 * queue, so some items on the blocked queue may now be unblocked. 11129 */ 11130static int 11131ctl_check_blocked(struct ctl_lun *lun) 11132{ 11133 union ctl_io *cur_blocked, *next_blocked; 11134 11135 mtx_assert(&lun->lun_lock, MA_OWNED); 11136 11137 /* 11138 * Run forward from the head of the blocked queue, checking each 11139 * entry against the I/Os prior to it on the OOA queue to see if 11140 * there is still any blockage. 11141 * 11142 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11143 * with our removing a variable on it while it is traversing the 11144 * list. 11145 */ 11146 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11147 cur_blocked != NULL; cur_blocked = next_blocked) { 11148 union ctl_io *prev_ooa; 11149 ctl_action action; 11150 11151 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11152 blocked_links); 11153 11154 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11155 ctl_ooaq, ooa_links); 11156 11157 /* 11158 * If cur_blocked happens to be the first item in the OOA 11159 * queue now, prev_ooa will be NULL, and the action 11160 * returned will just be CTL_ACTION_PASS. 11161 */ 11162 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11163 11164 switch (action) { 11165 case CTL_ACTION_BLOCK: 11166 /* Nothing to do here, still blocked */ 11167 break; 11168 case CTL_ACTION_OVERLAP: 11169 case CTL_ACTION_OVERLAP_TAG: 11170 /* 11171 * This shouldn't happen! In theory we've already 11172 * checked this command for overlap... 11173 */ 11174 break; 11175 case CTL_ACTION_PASS: 11176 case CTL_ACTION_SKIP: { 11177 struct ctl_softc *softc; 11178 const struct ctl_cmd_entry *entry; 11179 uint32_t initidx; 11180 int isc_retval; 11181 11182 /* 11183 * The skip case shouldn't happen, this transaction 11184 * should have never made it onto the blocked queue. 11185 */ 11186 /* 11187 * This I/O is no longer blocked, we can remove it 11188 * from the blocked queue. Since this is a TAILQ 11189 * (doubly linked list), we can do O(1) removals 11190 * from any place on the list. 11191 */ 11192 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11193 blocked_links); 11194 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11195 11196 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11197 /* 11198 * Need to send IO back to original side to 11199 * run 11200 */ 11201 union ctl_ha_msg msg_info; 11202 11203 msg_info.hdr.original_sc = 11204 cur_blocked->io_hdr.original_sc; 11205 msg_info.hdr.serializing_sc = cur_blocked; 11206 msg_info.hdr.msg_type = CTL_MSG_R2R; 11207 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11208 &msg_info, sizeof(msg_info), 0)) > 11209 CTL_HA_STATUS_SUCCESS) { 11210 printf("CTL:Check Blocked error from " 11211 "ctl_ha_msg_send %d\n", 11212 isc_retval); 11213 } 11214 break; 11215 } 11216 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11217 softc = control_softc; 11218 11219 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11220 11221 /* 11222 * Check this I/O for LUN state changes that may 11223 * have happened while this command was blocked. 11224 * The LUN state may have been changed by a command 11225 * ahead of us in the queue, so we need to re-check 11226 * for any states that can be caused by SCSI 11227 * commands. 11228 */ 11229 if (ctl_scsiio_lun_check(softc, lun, entry, 11230 &cur_blocked->scsiio) == 0) { 11231 cur_blocked->io_hdr.flags |= 11232 CTL_FLAG_IS_WAS_ON_RTR; 11233 ctl_enqueue_rtr(cur_blocked); 11234 } else 11235 ctl_done(cur_blocked); 11236 break; 11237 } 11238 default: 11239 /* 11240 * This probably shouldn't happen -- we shouldn't 11241 * get CTL_ACTION_ERROR, or anything else. 11242 */ 11243 break; 11244 } 11245 } 11246 11247 return (CTL_RETVAL_COMPLETE); 11248} 11249 11250/* 11251 * This routine (with one exception) checks LUN flags that can be set by 11252 * commands ahead of us in the OOA queue. These flags have to be checked 11253 * when a command initially comes in, and when we pull a command off the 11254 * blocked queue and are preparing to execute it. The reason we have to 11255 * check these flags for commands on the blocked queue is that the LUN 11256 * state may have been changed by a command ahead of us while we're on the 11257 * blocked queue. 11258 * 11259 * Ordering is somewhat important with these checks, so please pay 11260 * careful attention to the placement of any new checks. 11261 */ 11262static int 11263ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11264 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11265{ 11266 int retval; 11267 uint32_t residx; 11268 11269 retval = 0; 11270 11271 mtx_assert(&lun->lun_lock, MA_OWNED); 11272 11273 /* 11274 * If this shelf is a secondary shelf controller, we have to reject 11275 * any media access commands. 11276 */ 11277#if 0 11278 /* No longer needed for HA */ 11279 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11280 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11281 ctl_set_lun_standby(ctsio); 11282 retval = 1; 11283 goto bailout; 11284 } 11285#endif 11286 11287 /* 11288 * Check for a reservation conflict. If this command isn't allowed 11289 * even on reserved LUNs, and if this initiator isn't the one who 11290 * reserved us, reject the command with a reservation conflict. 11291 */ 11292 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11293 if ((lun->flags & CTL_LUN_RESERVED) 11294 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11295 if (lun->res_idx != residx) { 11296 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11297 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11298 retval = 1; 11299 goto bailout; 11300 } 11301 } 11302 11303 if ((lun->flags & CTL_LUN_PR_RESERVED) 11304 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11305 /* 11306 * if we aren't registered or it's a res holder type 11307 * reservation and this isn't the res holder then set a 11308 * conflict. 11309 * NOTE: Commands which might be allowed on write exclusive 11310 * type reservations are checked in the particular command 11311 * for a conflict. Read and SSU are the only ones. 11312 */ 11313 if (!lun->per_res[residx].registered 11314 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11315 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11316 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11317 retval = 1; 11318 goto bailout; 11319 } 11320 11321 } 11322 11323 if ((lun->flags & CTL_LUN_OFFLINE) 11324 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11325 ctl_set_lun_not_ready(ctsio); 11326 retval = 1; 11327 goto bailout; 11328 } 11329 11330 /* 11331 * If the LUN is stopped, see if this particular command is allowed 11332 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11333 */ 11334 if ((lun->flags & CTL_LUN_STOPPED) 11335 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11336 /* "Logical unit not ready, initializing cmd. required" */ 11337 ctl_set_lun_stopped(ctsio); 11338 retval = 1; 11339 goto bailout; 11340 } 11341 11342 if ((lun->flags & CTL_LUN_INOPERABLE) 11343 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11344 /* "Medium format corrupted" */ 11345 ctl_set_medium_format_corrupted(ctsio); 11346 retval = 1; 11347 goto bailout; 11348 } 11349 11350bailout: 11351 return (retval); 11352 11353} 11354 11355static void 11356ctl_failover_io(union ctl_io *io, int have_lock) 11357{ 11358 ctl_set_busy(&io->scsiio); 11359 ctl_done(io); 11360} 11361 11362static void 11363ctl_failover(void) 11364{ 11365 struct ctl_lun *lun; 11366 struct ctl_softc *ctl_softc; 11367 union ctl_io *next_io, *pending_io; 11368 union ctl_io *io; 11369 int lun_idx; 11370 int i; 11371 11372 ctl_softc = control_softc; 11373 11374 mtx_lock(&ctl_softc->ctl_lock); 11375 /* 11376 * Remove any cmds from the other SC from the rtr queue. These 11377 * will obviously only be for LUNs for which we're the primary. 11378 * We can't send status or get/send data for these commands. 11379 * Since they haven't been executed yet, we can just remove them. 11380 * We'll either abort them or delete them below, depending on 11381 * which HA mode we're in. 11382 */ 11383#ifdef notyet 11384 mtx_lock(&ctl_softc->queue_lock); 11385 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11386 io != NULL; io = next_io) { 11387 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11388 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11389 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11390 ctl_io_hdr, links); 11391 } 11392 mtx_unlock(&ctl_softc->queue_lock); 11393#endif 11394 11395 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11396 lun = ctl_softc->ctl_luns[lun_idx]; 11397 if (lun==NULL) 11398 continue; 11399 11400 /* 11401 * Processor LUNs are primary on both sides. 11402 * XXX will this always be true? 11403 */ 11404 if (lun->be_lun->lun_type == T_PROCESSOR) 11405 continue; 11406 11407 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11408 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11409 printf("FAILOVER: primary lun %d\n", lun_idx); 11410 /* 11411 * Remove all commands from the other SC. First from the 11412 * blocked queue then from the ooa queue. Once we have 11413 * removed them. Call ctl_check_blocked to see if there 11414 * is anything that can run. 11415 */ 11416 for (io = (union ctl_io *)TAILQ_FIRST( 11417 &lun->blocked_queue); io != NULL; io = next_io) { 11418 11419 next_io = (union ctl_io *)TAILQ_NEXT( 11420 &io->io_hdr, blocked_links); 11421 11422 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11423 TAILQ_REMOVE(&lun->blocked_queue, 11424 &io->io_hdr,blocked_links); 11425 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11426 TAILQ_REMOVE(&lun->ooa_queue, 11427 &io->io_hdr, ooa_links); 11428 11429 ctl_free_io(io); 11430 } 11431 } 11432 11433 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11434 io != NULL; io = next_io) { 11435 11436 next_io = (union ctl_io *)TAILQ_NEXT( 11437 &io->io_hdr, ooa_links); 11438 11439 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11440 11441 TAILQ_REMOVE(&lun->ooa_queue, 11442 &io->io_hdr, 11443 ooa_links); 11444 11445 ctl_free_io(io); 11446 } 11447 } 11448 ctl_check_blocked(lun); 11449 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11450 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11451 11452 printf("FAILOVER: primary lun %d\n", lun_idx); 11453 /* 11454 * Abort all commands from the other SC. We can't 11455 * send status back for them now. These should get 11456 * cleaned up when they are completed or come out 11457 * for a datamove operation. 11458 */ 11459 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11460 io != NULL; io = next_io) { 11461 next_io = (union ctl_io *)TAILQ_NEXT( 11462 &io->io_hdr, ooa_links); 11463 11464 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11465 io->io_hdr.flags |= CTL_FLAG_ABORT; 11466 } 11467 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11468 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11469 11470 printf("FAILOVER: secondary lun %d\n", lun_idx); 11471 11472 lun->flags |= CTL_LUN_PRIMARY_SC; 11473 11474 /* 11475 * We send all I/O that was sent to this controller 11476 * and redirected to the other side back with 11477 * busy status, and have the initiator retry it. 11478 * Figuring out how much data has been transferred, 11479 * etc. and picking up where we left off would be 11480 * very tricky. 11481 * 11482 * XXX KDM need to remove I/O from the blocked 11483 * queue as well! 11484 */ 11485 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11486 &lun->ooa_queue); pending_io != NULL; 11487 pending_io = next_io) { 11488 11489 next_io = (union ctl_io *)TAILQ_NEXT( 11490 &pending_io->io_hdr, ooa_links); 11491 11492 pending_io->io_hdr.flags &= 11493 ~CTL_FLAG_SENT_2OTHER_SC; 11494 11495 if (pending_io->io_hdr.flags & 11496 CTL_FLAG_IO_ACTIVE) { 11497 pending_io->io_hdr.flags |= 11498 CTL_FLAG_FAILOVER; 11499 } else { 11500 ctl_set_busy(&pending_io->scsiio); 11501 ctl_done(pending_io); 11502 } 11503 } 11504 11505 /* 11506 * Build Unit Attention 11507 */ 11508 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11509 lun->pending_ua[i] |= 11510 CTL_UA_ASYM_ACC_CHANGE; 11511 } 11512 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11513 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11514 printf("FAILOVER: secondary lun %d\n", lun_idx); 11515 /* 11516 * if the first io on the OOA is not on the RtR queue 11517 * add it. 11518 */ 11519 lun->flags |= CTL_LUN_PRIMARY_SC; 11520 11521 pending_io = (union ctl_io *)TAILQ_FIRST( 11522 &lun->ooa_queue); 11523 if (pending_io==NULL) { 11524 printf("Nothing on OOA queue\n"); 11525 continue; 11526 } 11527 11528 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11529 if ((pending_io->io_hdr.flags & 11530 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11531 pending_io->io_hdr.flags |= 11532 CTL_FLAG_IS_WAS_ON_RTR; 11533 ctl_enqueue_rtr(pending_io); 11534 } 11535#if 0 11536 else 11537 { 11538 printf("Tag 0x%04x is running\n", 11539 pending_io->scsiio.tag_num); 11540 } 11541#endif 11542 11543 next_io = (union ctl_io *)TAILQ_NEXT( 11544 &pending_io->io_hdr, ooa_links); 11545 for (pending_io=next_io; pending_io != NULL; 11546 pending_io = next_io) { 11547 pending_io->io_hdr.flags &= 11548 ~CTL_FLAG_SENT_2OTHER_SC; 11549 next_io = (union ctl_io *)TAILQ_NEXT( 11550 &pending_io->io_hdr, ooa_links); 11551 if (pending_io->io_hdr.flags & 11552 CTL_FLAG_IS_WAS_ON_RTR) { 11553#if 0 11554 printf("Tag 0x%04x is running\n", 11555 pending_io->scsiio.tag_num); 11556#endif 11557 continue; 11558 } 11559 11560 switch (ctl_check_ooa(lun, pending_io, 11561 (union ctl_io *)TAILQ_PREV( 11562 &pending_io->io_hdr, ctl_ooaq, 11563 ooa_links))) { 11564 11565 case CTL_ACTION_BLOCK: 11566 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11567 &pending_io->io_hdr, 11568 blocked_links); 11569 pending_io->io_hdr.flags |= 11570 CTL_FLAG_BLOCKED; 11571 break; 11572 case CTL_ACTION_PASS: 11573 case CTL_ACTION_SKIP: 11574 pending_io->io_hdr.flags |= 11575 CTL_FLAG_IS_WAS_ON_RTR; 11576 ctl_enqueue_rtr(pending_io); 11577 break; 11578 case CTL_ACTION_OVERLAP: 11579 ctl_set_overlapped_cmd( 11580 (struct ctl_scsiio *)pending_io); 11581 ctl_done(pending_io); 11582 break; 11583 case CTL_ACTION_OVERLAP_TAG: 11584 ctl_set_overlapped_tag( 11585 (struct ctl_scsiio *)pending_io, 11586 pending_io->scsiio.tag_num & 0xff); 11587 ctl_done(pending_io); 11588 break; 11589 case CTL_ACTION_ERROR: 11590 default: 11591 ctl_set_internal_failure( 11592 (struct ctl_scsiio *)pending_io, 11593 0, // sks_valid 11594 0); //retry count 11595 ctl_done(pending_io); 11596 break; 11597 } 11598 } 11599 11600 /* 11601 * Build Unit Attention 11602 */ 11603 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11604 lun->pending_ua[i] |= 11605 CTL_UA_ASYM_ACC_CHANGE; 11606 } 11607 } else { 11608 panic("Unhandled HA mode failover, LUN flags = %#x, " 11609 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11610 } 11611 } 11612 ctl_pause_rtr = 0; 11613 mtx_unlock(&ctl_softc->ctl_lock); 11614} 11615 11616static int 11617ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11618{ 11619 struct ctl_lun *lun; 11620 const struct ctl_cmd_entry *entry; 11621 uint32_t initidx, targ_lun; 11622 int retval; 11623 11624 retval = 0; 11625 11626 lun = NULL; 11627 11628 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11629 if ((targ_lun < CTL_MAX_LUNS) 11630 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11631 lun = ctl_softc->ctl_luns[targ_lun]; 11632 /* 11633 * If the LUN is invalid, pretend that it doesn't exist. 11634 * It will go away as soon as all pending I/O has been 11635 * completed. 11636 */ 11637 if (lun->flags & CTL_LUN_DISABLED) { 11638 lun = NULL; 11639 } else { 11640 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11641 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11642 lun->be_lun; 11643 if (lun->be_lun->lun_type == T_PROCESSOR) { 11644 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11645 } 11646 11647 /* 11648 * Every I/O goes into the OOA queue for a 11649 * particular LUN, and stays there until completion. 11650 */ 11651 mtx_lock(&lun->lun_lock); 11652 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11653 ooa_links); 11654 } 11655 } else { 11656 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11657 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11658 } 11659 11660 /* Get command entry and return error if it is unsuppotyed. */ 11661 entry = ctl_validate_command(ctsio); 11662 if (entry == NULL) { 11663 if (lun) 11664 mtx_unlock(&lun->lun_lock); 11665 return (retval); 11666 } 11667 11668 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11669 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11670 11671 /* 11672 * Check to see whether we can send this command to LUNs that don't 11673 * exist. This should pretty much only be the case for inquiry 11674 * and request sense. Further checks, below, really require having 11675 * a LUN, so we can't really check the command anymore. Just put 11676 * it on the rtr queue. 11677 */ 11678 if (lun == NULL) { 11679 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11680 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11681 ctl_enqueue_rtr((union ctl_io *)ctsio); 11682 return (retval); 11683 } 11684 11685 ctl_set_unsupported_lun(ctsio); 11686 ctl_done((union ctl_io *)ctsio); 11687 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11688 return (retval); 11689 } else { 11690 /* 11691 * Make sure we support this particular command on this LUN. 11692 * e.g., we don't support writes to the control LUN. 11693 */ 11694 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11695 mtx_unlock(&lun->lun_lock); 11696 ctl_set_invalid_opcode(ctsio); 11697 ctl_done((union ctl_io *)ctsio); 11698 return (retval); 11699 } 11700 } 11701 11702 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11703 11704#ifdef CTL_WITH_CA 11705 /* 11706 * If we've got a request sense, it'll clear the contingent 11707 * allegiance condition. Otherwise, if we have a CA condition for 11708 * this initiator, clear it, because it sent down a command other 11709 * than request sense. 11710 */ 11711 if ((ctsio->cdb[0] != REQUEST_SENSE) 11712 && (ctl_is_set(lun->have_ca, initidx))) 11713 ctl_clear_mask(lun->have_ca, initidx); 11714#endif 11715 11716 /* 11717 * If the command has this flag set, it handles its own unit 11718 * attention reporting, we shouldn't do anything. Otherwise we 11719 * check for any pending unit attentions, and send them back to the 11720 * initiator. We only do this when a command initially comes in, 11721 * not when we pull it off the blocked queue. 11722 * 11723 * According to SAM-3, section 5.3.2, the order that things get 11724 * presented back to the host is basically unit attentions caused 11725 * by some sort of reset event, busy status, reservation conflicts 11726 * or task set full, and finally any other status. 11727 * 11728 * One issue here is that some of the unit attentions we report 11729 * don't fall into the "reset" category (e.g. "reported luns data 11730 * has changed"). So reporting it here, before the reservation 11731 * check, may be technically wrong. I guess the only thing to do 11732 * would be to check for and report the reset events here, and then 11733 * check for the other unit attention types after we check for a 11734 * reservation conflict. 11735 * 11736 * XXX KDM need to fix this 11737 */ 11738 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11739 ctl_ua_type ua_type; 11740 11741 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11742 scsi_sense_data_type sense_format; 11743 11744 if (lun != NULL) 11745 sense_format = (lun->flags & 11746 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11747 SSD_TYPE_FIXED; 11748 else 11749 sense_format = SSD_TYPE_FIXED; 11750 11751 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11752 &ctsio->sense_data, sense_format); 11753 if (ua_type != CTL_UA_NONE) { 11754 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11755 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11756 CTL_AUTOSENSE; 11757 ctsio->sense_len = SSD_FULL_SIZE; 11758 mtx_unlock(&lun->lun_lock); 11759 ctl_done((union ctl_io *)ctsio); 11760 return (retval); 11761 } 11762 } 11763 } 11764 11765 11766 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11767 mtx_unlock(&lun->lun_lock); 11768 ctl_done((union ctl_io *)ctsio); 11769 return (retval); 11770 } 11771 11772 /* 11773 * XXX CHD this is where we want to send IO to other side if 11774 * this LUN is secondary on this SC. We will need to make a copy 11775 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11776 * the copy we send as FROM_OTHER. 11777 * We also need to stuff the address of the original IO so we can 11778 * find it easily. Something similar will need be done on the other 11779 * side so when we are done we can find the copy. 11780 */ 11781 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11782 union ctl_ha_msg msg_info; 11783 int isc_retval; 11784 11785 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11786 11787 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11788 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11789#if 0 11790 printf("1. ctsio %p\n", ctsio); 11791#endif 11792 msg_info.hdr.serializing_sc = NULL; 11793 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11794 msg_info.scsi.tag_num = ctsio->tag_num; 11795 msg_info.scsi.tag_type = ctsio->tag_type; 11796 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11797 11798 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11799 11800 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11801 (void *)&msg_info, sizeof(msg_info), 0)) > 11802 CTL_HA_STATUS_SUCCESS) { 11803 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11804 isc_retval); 11805 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11806 } else { 11807#if 0 11808 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11809#endif 11810 } 11811 11812 /* 11813 * XXX KDM this I/O is off the incoming queue, but hasn't 11814 * been inserted on any other queue. We may need to come 11815 * up with a holding queue while we wait for serialization 11816 * so that we have an idea of what we're waiting for from 11817 * the other side. 11818 */ 11819 mtx_unlock(&lun->lun_lock); 11820 return (retval); 11821 } 11822 11823 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11824 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11825 ctl_ooaq, ooa_links))) { 11826 case CTL_ACTION_BLOCK: 11827 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11828 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11829 blocked_links); 11830 mtx_unlock(&lun->lun_lock); 11831 return (retval); 11832 case CTL_ACTION_PASS: 11833 case CTL_ACTION_SKIP: 11834 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11835 mtx_unlock(&lun->lun_lock); 11836 ctl_enqueue_rtr((union ctl_io *)ctsio); 11837 break; 11838 case CTL_ACTION_OVERLAP: 11839 mtx_unlock(&lun->lun_lock); 11840 ctl_set_overlapped_cmd(ctsio); 11841 ctl_done((union ctl_io *)ctsio); 11842 break; 11843 case CTL_ACTION_OVERLAP_TAG: 11844 mtx_unlock(&lun->lun_lock); 11845 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11846 ctl_done((union ctl_io *)ctsio); 11847 break; 11848 case CTL_ACTION_ERROR: 11849 default: 11850 mtx_unlock(&lun->lun_lock); 11851 ctl_set_internal_failure(ctsio, 11852 /*sks_valid*/ 0, 11853 /*retry_count*/ 0); 11854 ctl_done((union ctl_io *)ctsio); 11855 break; 11856 } 11857 return (retval); 11858} 11859 11860const struct ctl_cmd_entry * 11861ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11862{ 11863 const struct ctl_cmd_entry *entry; 11864 int service_action; 11865 11866 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11867 if (sa) 11868 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11869 if (entry->flags & CTL_CMD_FLAG_SA5) { 11870 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11871 entry = &((const struct ctl_cmd_entry *) 11872 entry->execute)[service_action]; 11873 } 11874 return (entry); 11875} 11876 11877const struct ctl_cmd_entry * 11878ctl_validate_command(struct ctl_scsiio *ctsio) 11879{ 11880 const struct ctl_cmd_entry *entry; 11881 int i, sa; 11882 uint8_t diff; 11883 11884 entry = ctl_get_cmd_entry(ctsio, &sa); 11885 if (entry->execute == NULL) { 11886 if (sa) 11887 ctl_set_invalid_field(ctsio, 11888 /*sks_valid*/ 1, 11889 /*command*/ 1, 11890 /*field*/ 1, 11891 /*bit_valid*/ 1, 11892 /*bit*/ 4); 11893 else 11894 ctl_set_invalid_opcode(ctsio); 11895 ctl_done((union ctl_io *)ctsio); 11896 return (NULL); 11897 } 11898 KASSERT(entry->length > 0, 11899 ("Not defined length for command 0x%02x/0x%02x", 11900 ctsio->cdb[0], ctsio->cdb[1])); 11901 for (i = 1; i < entry->length; i++) { 11902 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11903 if (diff == 0) 11904 continue; 11905 ctl_set_invalid_field(ctsio, 11906 /*sks_valid*/ 1, 11907 /*command*/ 1, 11908 /*field*/ i, 11909 /*bit_valid*/ 1, 11910 /*bit*/ fls(diff) - 1); 11911 ctl_done((union ctl_io *)ctsio); 11912 return (NULL); 11913 } 11914 return (entry); 11915} 11916 11917static int 11918ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11919{ 11920 11921 switch (lun_type) { 11922 case T_PROCESSOR: 11923 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11924 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11925 return (0); 11926 break; 11927 case T_DIRECT: 11928 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11929 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11930 return (0); 11931 break; 11932 default: 11933 return (0); 11934 } 11935 return (1); 11936} 11937 11938static int 11939ctl_scsiio(struct ctl_scsiio *ctsio) 11940{ 11941 int retval; 11942 const struct ctl_cmd_entry *entry; 11943 11944 retval = CTL_RETVAL_COMPLETE; 11945 11946 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11947 11948 entry = ctl_get_cmd_entry(ctsio, NULL); 11949 11950 /* 11951 * If this I/O has been aborted, just send it straight to 11952 * ctl_done() without executing it. 11953 */ 11954 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11955 ctl_done((union ctl_io *)ctsio); 11956 goto bailout; 11957 } 11958 11959 /* 11960 * All the checks should have been handled by ctl_scsiio_precheck(). 11961 * We should be clear now to just execute the I/O. 11962 */ 11963 retval = entry->execute(ctsio); 11964 11965bailout: 11966 return (retval); 11967} 11968 11969/* 11970 * Since we only implement one target right now, a bus reset simply resets 11971 * our single target. 11972 */ 11973static int 11974ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11975{ 11976 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11977} 11978 11979static int 11980ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11981 ctl_ua_type ua_type) 11982{ 11983 struct ctl_lun *lun; 11984 int retval; 11985 11986 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11987 union ctl_ha_msg msg_info; 11988 11989 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11990 msg_info.hdr.nexus = io->io_hdr.nexus; 11991 if (ua_type==CTL_UA_TARG_RESET) 11992 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11993 else 11994 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11995 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11996 msg_info.hdr.original_sc = NULL; 11997 msg_info.hdr.serializing_sc = NULL; 11998 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11999 (void *)&msg_info, sizeof(msg_info), 0)) { 12000 } 12001 } 12002 retval = 0; 12003 12004 mtx_lock(&ctl_softc->ctl_lock); 12005 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12006 retval += ctl_lun_reset(lun, io, ua_type); 12007 mtx_unlock(&ctl_softc->ctl_lock); 12008 12009 return (retval); 12010} 12011 12012/* 12013 * The LUN should always be set. The I/O is optional, and is used to 12014 * distinguish between I/Os sent by this initiator, and by other 12015 * initiators. We set unit attention for initiators other than this one. 12016 * SAM-3 is vague on this point. It does say that a unit attention should 12017 * be established for other initiators when a LUN is reset (see section 12018 * 5.7.3), but it doesn't specifically say that the unit attention should 12019 * be established for this particular initiator when a LUN is reset. Here 12020 * is the relevant text, from SAM-3 rev 8: 12021 * 12022 * 5.7.2 When a SCSI initiator port aborts its own tasks 12023 * 12024 * When a SCSI initiator port causes its own task(s) to be aborted, no 12025 * notification that the task(s) have been aborted shall be returned to 12026 * the SCSI initiator port other than the completion response for the 12027 * command or task management function action that caused the task(s) to 12028 * be aborted and notification(s) associated with related effects of the 12029 * action (e.g., a reset unit attention condition). 12030 * 12031 * XXX KDM for now, we're setting unit attention for all initiators. 12032 */ 12033static int 12034ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12035{ 12036 union ctl_io *xio; 12037#if 0 12038 uint32_t initindex; 12039#endif 12040 int i; 12041 12042 mtx_lock(&lun->lun_lock); 12043 /* 12044 * Run through the OOA queue and abort each I/O. 12045 */ 12046#if 0 12047 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12048#endif 12049 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12050 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12051 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12052 } 12053 12054 /* 12055 * This version sets unit attention for every 12056 */ 12057#if 0 12058 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12059 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12060 if (initindex == i) 12061 continue; 12062 lun->pending_ua[i] |= ua_type; 12063 } 12064#endif 12065 12066 /* 12067 * A reset (any kind, really) clears reservations established with 12068 * RESERVE/RELEASE. It does not clear reservations established 12069 * with PERSISTENT RESERVE OUT, but we don't support that at the 12070 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12071 * reservations made with the RESERVE/RELEASE commands, because 12072 * those commands are obsolete in SPC-3. 12073 */ 12074 lun->flags &= ~CTL_LUN_RESERVED; 12075 12076 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12077#ifdef CTL_WITH_CA 12078 ctl_clear_mask(lun->have_ca, i); 12079#endif 12080 lun->pending_ua[i] |= ua_type; 12081 } 12082 mtx_unlock(&lun->lun_lock); 12083 12084 return (0); 12085} 12086 12087static void 12088ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12089 int other_sc) 12090{ 12091 union ctl_io *xio; 12092 12093 mtx_assert(&lun->lun_lock, MA_OWNED); 12094 12095 /* 12096 * Run through the OOA queue and attempt to find the given I/O. 12097 * The target port, initiator ID, tag type and tag number have to 12098 * match the values that we got from the initiator. If we have an 12099 * untagged command to abort, simply abort the first untagged command 12100 * we come to. We only allow one untagged command at a time of course. 12101 */ 12102 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12103 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12104 12105 if ((targ_port == UINT32_MAX || 12106 targ_port == xio->io_hdr.nexus.targ_port) && 12107 (init_id == UINT32_MAX || 12108 init_id == xio->io_hdr.nexus.initid.id)) { 12109 if (targ_port != xio->io_hdr.nexus.targ_port || 12110 init_id != xio->io_hdr.nexus.initid.id) 12111 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12112 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12113 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12114 union ctl_ha_msg msg_info; 12115 12116 msg_info.hdr.nexus = xio->io_hdr.nexus; 12117 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12118 msg_info.task.tag_num = xio->scsiio.tag_num; 12119 msg_info.task.tag_type = xio->scsiio.tag_type; 12120 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12121 msg_info.hdr.original_sc = NULL; 12122 msg_info.hdr.serializing_sc = NULL; 12123 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12124 (void *)&msg_info, sizeof(msg_info), 0); 12125 } 12126 } 12127 } 12128} 12129 12130static int 12131ctl_abort_task_set(union ctl_io *io) 12132{ 12133 struct ctl_softc *softc = control_softc; 12134 struct ctl_lun *lun; 12135 uint32_t targ_lun; 12136 12137 /* 12138 * Look up the LUN. 12139 */ 12140 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12141 mtx_lock(&softc->ctl_lock); 12142 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12143 lun = softc->ctl_luns[targ_lun]; 12144 else { 12145 mtx_unlock(&softc->ctl_lock); 12146 return (1); 12147 } 12148 12149 mtx_lock(&lun->lun_lock); 12150 mtx_unlock(&softc->ctl_lock); 12151 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12152 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12153 io->io_hdr.nexus.initid.id, 12154 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12155 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12156 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12157 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12158 } 12159 mtx_unlock(&lun->lun_lock); 12160 return (0); 12161} 12162 12163static int 12164ctl_i_t_nexus_reset(union ctl_io *io) 12165{ 12166 struct ctl_softc *softc = control_softc; 12167 struct ctl_lun *lun; 12168 uint32_t initindex, residx; 12169 12170 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12171 residx = ctl_get_resindex(&io->io_hdr.nexus); 12172 mtx_lock(&softc->ctl_lock); 12173 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12174 mtx_lock(&lun->lun_lock); 12175 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12176 io->io_hdr.nexus.initid.id, 12177 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12178#ifdef CTL_WITH_CA 12179 ctl_clear_mask(lun->have_ca, initindex); 12180#endif 12181 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12182 lun->flags &= ~CTL_LUN_RESERVED; 12183 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12184 mtx_unlock(&lun->lun_lock); 12185 } 12186 mtx_unlock(&softc->ctl_lock); 12187 return (0); 12188} 12189 12190static int 12191ctl_abort_task(union ctl_io *io) 12192{ 12193 union ctl_io *xio; 12194 struct ctl_lun *lun; 12195 struct ctl_softc *ctl_softc; 12196#if 0 12197 struct sbuf sb; 12198 char printbuf[128]; 12199#endif 12200 int found; 12201 uint32_t targ_lun; 12202 12203 ctl_softc = control_softc; 12204 found = 0; 12205 12206 /* 12207 * Look up the LUN. 12208 */ 12209 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12210 mtx_lock(&ctl_softc->ctl_lock); 12211 if ((targ_lun < CTL_MAX_LUNS) 12212 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12213 lun = ctl_softc->ctl_luns[targ_lun]; 12214 else { 12215 mtx_unlock(&ctl_softc->ctl_lock); 12216 return (1); 12217 } 12218 12219#if 0 12220 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12221 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12222#endif 12223 12224 mtx_lock(&lun->lun_lock); 12225 mtx_unlock(&ctl_softc->ctl_lock); 12226 /* 12227 * Run through the OOA queue and attempt to find the given I/O. 12228 * The target port, initiator ID, tag type and tag number have to 12229 * match the values that we got from the initiator. If we have an 12230 * untagged command to abort, simply abort the first untagged command 12231 * we come to. We only allow one untagged command at a time of course. 12232 */ 12233#if 0 12234 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12235#endif 12236 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12237 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12238#if 0 12239 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12240 12241 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12242 lun->lun, xio->scsiio.tag_num, 12243 xio->scsiio.tag_type, 12244 (xio->io_hdr.blocked_links.tqe_prev 12245 == NULL) ? "" : " BLOCKED", 12246 (xio->io_hdr.flags & 12247 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12248 (xio->io_hdr.flags & 12249 CTL_FLAG_ABORT) ? " ABORT" : "", 12250 (xio->io_hdr.flags & 12251 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12252 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12253 sbuf_finish(&sb); 12254 printf("%s\n", sbuf_data(&sb)); 12255#endif 12256 12257 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12258 && (xio->io_hdr.nexus.initid.id == 12259 io->io_hdr.nexus.initid.id)) { 12260 /* 12261 * If the abort says that the task is untagged, the 12262 * task in the queue must be untagged. Otherwise, 12263 * we just check to see whether the tag numbers 12264 * match. This is because the QLogic firmware 12265 * doesn't pass back the tag type in an abort 12266 * request. 12267 */ 12268#if 0 12269 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12270 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12271 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12272#endif 12273 /* 12274 * XXX KDM we've got problems with FC, because it 12275 * doesn't send down a tag type with aborts. So we 12276 * can only really go by the tag number... 12277 * This may cause problems with parallel SCSI. 12278 * Need to figure that out!! 12279 */ 12280 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12281 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12282 found = 1; 12283 if ((io->io_hdr.flags & 12284 CTL_FLAG_FROM_OTHER_SC) == 0 && 12285 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12286 union ctl_ha_msg msg_info; 12287 12288 io->io_hdr.flags |= 12289 CTL_FLAG_SENT_2OTHER_SC; 12290 msg_info.hdr.nexus = io->io_hdr.nexus; 12291 msg_info.task.task_action = 12292 CTL_TASK_ABORT_TASK; 12293 msg_info.task.tag_num = 12294 io->taskio.tag_num; 12295 msg_info.task.tag_type = 12296 io->taskio.tag_type; 12297 msg_info.hdr.msg_type = 12298 CTL_MSG_MANAGE_TASKS; 12299 msg_info.hdr.original_sc = NULL; 12300 msg_info.hdr.serializing_sc = NULL; 12301#if 0 12302 printf("Sent Abort to other side\n"); 12303#endif 12304 if (CTL_HA_STATUS_SUCCESS != 12305 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12306 (void *)&msg_info, 12307 sizeof(msg_info), 0)) { 12308 } 12309 } 12310#if 0 12311 printf("ctl_abort_task: found I/O to abort\n"); 12312#endif 12313 break; 12314 } 12315 } 12316 } 12317 mtx_unlock(&lun->lun_lock); 12318 12319 if (found == 0) { 12320 /* 12321 * This isn't really an error. It's entirely possible for 12322 * the abort and command completion to cross on the wire. 12323 * This is more of an informative/diagnostic error. 12324 */ 12325#if 0 12326 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12327 "%d:%d:%d:%d tag %d type %d\n", 12328 io->io_hdr.nexus.initid.id, 12329 io->io_hdr.nexus.targ_port, 12330 io->io_hdr.nexus.targ_target.id, 12331 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12332 io->taskio.tag_type); 12333#endif 12334 } 12335 return (0); 12336} 12337 12338static void 12339ctl_run_task(union ctl_io *io) 12340{ 12341 struct ctl_softc *ctl_softc = control_softc; 12342 int retval = 1; 12343 const char *task_desc; 12344 12345 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12346 12347 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12348 ("ctl_run_task: Unextected io_type %d\n", 12349 io->io_hdr.io_type)); 12350 12351 task_desc = ctl_scsi_task_string(&io->taskio); 12352 if (task_desc != NULL) { 12353#ifdef NEEDTOPORT 12354 csevent_log(CSC_CTL | CSC_SHELF_SW | 12355 CTL_TASK_REPORT, 12356 csevent_LogType_Trace, 12357 csevent_Severity_Information, 12358 csevent_AlertLevel_Green, 12359 csevent_FRU_Firmware, 12360 csevent_FRU_Unknown, 12361 "CTL: received task: %s",task_desc); 12362#endif 12363 } else { 12364#ifdef NEEDTOPORT 12365 csevent_log(CSC_CTL | CSC_SHELF_SW | 12366 CTL_TASK_REPORT, 12367 csevent_LogType_Trace, 12368 csevent_Severity_Information, 12369 csevent_AlertLevel_Green, 12370 csevent_FRU_Firmware, 12371 csevent_FRU_Unknown, 12372 "CTL: received unknown task " 12373 "type: %d (%#x)", 12374 io->taskio.task_action, 12375 io->taskio.task_action); 12376#endif 12377 } 12378 switch (io->taskio.task_action) { 12379 case CTL_TASK_ABORT_TASK: 12380 retval = ctl_abort_task(io); 12381 break; 12382 case CTL_TASK_ABORT_TASK_SET: 12383 case CTL_TASK_CLEAR_TASK_SET: 12384 retval = ctl_abort_task_set(io); 12385 break; 12386 case CTL_TASK_CLEAR_ACA: 12387 break; 12388 case CTL_TASK_I_T_NEXUS_RESET: 12389 retval = ctl_i_t_nexus_reset(io); 12390 break; 12391 case CTL_TASK_LUN_RESET: { 12392 struct ctl_lun *lun; 12393 uint32_t targ_lun; 12394 12395 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12396 mtx_lock(&ctl_softc->ctl_lock); 12397 if ((targ_lun < CTL_MAX_LUNS) 12398 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12399 lun = ctl_softc->ctl_luns[targ_lun]; 12400 else { 12401 mtx_unlock(&ctl_softc->ctl_lock); 12402 retval = 1; 12403 break; 12404 } 12405 12406 if (!(io->io_hdr.flags & 12407 CTL_FLAG_FROM_OTHER_SC)) { 12408 union ctl_ha_msg msg_info; 12409 12410 io->io_hdr.flags |= 12411 CTL_FLAG_SENT_2OTHER_SC; 12412 msg_info.hdr.msg_type = 12413 CTL_MSG_MANAGE_TASKS; 12414 msg_info.hdr.nexus = io->io_hdr.nexus; 12415 msg_info.task.task_action = 12416 CTL_TASK_LUN_RESET; 12417 msg_info.hdr.original_sc = NULL; 12418 msg_info.hdr.serializing_sc = NULL; 12419 if (CTL_HA_STATUS_SUCCESS != 12420 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12421 (void *)&msg_info, 12422 sizeof(msg_info), 0)) { 12423 } 12424 } 12425 12426 retval = ctl_lun_reset(lun, io, 12427 CTL_UA_LUN_RESET); 12428 mtx_unlock(&ctl_softc->ctl_lock); 12429 break; 12430 } 12431 case CTL_TASK_TARGET_RESET: 12432 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12433 break; 12434 case CTL_TASK_BUS_RESET: 12435 retval = ctl_bus_reset(ctl_softc, io); 12436 break; 12437 case CTL_TASK_PORT_LOGIN: 12438 break; 12439 case CTL_TASK_PORT_LOGOUT: 12440 break; 12441 default: 12442 printf("ctl_run_task: got unknown task management event %d\n", 12443 io->taskio.task_action); 12444 break; 12445 } 12446 if (retval == 0) 12447 io->io_hdr.status = CTL_SUCCESS; 12448 else 12449 io->io_hdr.status = CTL_ERROR; 12450 ctl_done(io); 12451} 12452 12453/* 12454 * For HA operation. Handle commands that come in from the other 12455 * controller. 12456 */ 12457static void 12458ctl_handle_isc(union ctl_io *io) 12459{ 12460 int free_io; 12461 struct ctl_lun *lun; 12462 struct ctl_softc *ctl_softc; 12463 uint32_t targ_lun; 12464 12465 ctl_softc = control_softc; 12466 12467 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12468 lun = ctl_softc->ctl_luns[targ_lun]; 12469 12470 switch (io->io_hdr.msg_type) { 12471 case CTL_MSG_SERIALIZE: 12472 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12473 break; 12474 case CTL_MSG_R2R: { 12475 const struct ctl_cmd_entry *entry; 12476 12477 /* 12478 * This is only used in SER_ONLY mode. 12479 */ 12480 free_io = 0; 12481 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12482 mtx_lock(&lun->lun_lock); 12483 if (ctl_scsiio_lun_check(ctl_softc, lun, 12484 entry, (struct ctl_scsiio *)io) != 0) { 12485 mtx_unlock(&lun->lun_lock); 12486 ctl_done(io); 12487 break; 12488 } 12489 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12490 mtx_unlock(&lun->lun_lock); 12491 ctl_enqueue_rtr(io); 12492 break; 12493 } 12494 case CTL_MSG_FINISH_IO: 12495 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12496 free_io = 0; 12497 ctl_done(io); 12498 } else { 12499 free_io = 1; 12500 mtx_lock(&lun->lun_lock); 12501 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12502 ooa_links); 12503 ctl_check_blocked(lun); 12504 mtx_unlock(&lun->lun_lock); 12505 } 12506 break; 12507 case CTL_MSG_PERS_ACTION: 12508 ctl_hndl_per_res_out_on_other_sc( 12509 (union ctl_ha_msg *)&io->presio.pr_msg); 12510 free_io = 1; 12511 break; 12512 case CTL_MSG_BAD_JUJU: 12513 free_io = 0; 12514 ctl_done(io); 12515 break; 12516 case CTL_MSG_DATAMOVE: 12517 /* Only used in XFER mode */ 12518 free_io = 0; 12519 ctl_datamove_remote(io); 12520 break; 12521 case CTL_MSG_DATAMOVE_DONE: 12522 /* Only used in XFER mode */ 12523 free_io = 0; 12524 io->scsiio.be_move_done(io); 12525 break; 12526 default: 12527 free_io = 1; 12528 printf("%s: Invalid message type %d\n", 12529 __func__, io->io_hdr.msg_type); 12530 break; 12531 } 12532 if (free_io) 12533 ctl_free_io(io); 12534 12535} 12536 12537 12538/* 12539 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12540 * there is no match. 12541 */ 12542static ctl_lun_error_pattern 12543ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12544{ 12545 const struct ctl_cmd_entry *entry; 12546 ctl_lun_error_pattern filtered_pattern, pattern; 12547 12548 pattern = desc->error_pattern; 12549 12550 /* 12551 * XXX KDM we need more data passed into this function to match a 12552 * custom pattern, and we actually need to implement custom pattern 12553 * matching. 12554 */ 12555 if (pattern & CTL_LUN_PAT_CMD) 12556 return (CTL_LUN_PAT_CMD); 12557 12558 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12559 return (CTL_LUN_PAT_ANY); 12560 12561 entry = ctl_get_cmd_entry(ctsio, NULL); 12562 12563 filtered_pattern = entry->pattern & pattern; 12564 12565 /* 12566 * If the user requested specific flags in the pattern (e.g. 12567 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12568 * flags. 12569 * 12570 * If the user did not specify any flags, it doesn't matter whether 12571 * or not the command supports the flags. 12572 */ 12573 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12574 (pattern & ~CTL_LUN_PAT_MASK)) 12575 return (CTL_LUN_PAT_NONE); 12576 12577 /* 12578 * If the user asked for a range check, see if the requested LBA 12579 * range overlaps with this command's LBA range. 12580 */ 12581 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12582 uint64_t lba1; 12583 uint64_t len1; 12584 ctl_action action; 12585 int retval; 12586 12587 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12588 if (retval != 0) 12589 return (CTL_LUN_PAT_NONE); 12590 12591 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12592 desc->lba_range.len); 12593 /* 12594 * A "pass" means that the LBA ranges don't overlap, so 12595 * this doesn't match the user's range criteria. 12596 */ 12597 if (action == CTL_ACTION_PASS) 12598 return (CTL_LUN_PAT_NONE); 12599 } 12600 12601 return (filtered_pattern); 12602} 12603 12604static void 12605ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12606{ 12607 struct ctl_error_desc *desc, *desc2; 12608 12609 mtx_assert(&lun->lun_lock, MA_OWNED); 12610 12611 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12612 ctl_lun_error_pattern pattern; 12613 /* 12614 * Check to see whether this particular command matches 12615 * the pattern in the descriptor. 12616 */ 12617 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12618 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12619 continue; 12620 12621 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12622 case CTL_LUN_INJ_ABORTED: 12623 ctl_set_aborted(&io->scsiio); 12624 break; 12625 case CTL_LUN_INJ_MEDIUM_ERR: 12626 ctl_set_medium_error(&io->scsiio); 12627 break; 12628 case CTL_LUN_INJ_UA: 12629 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12630 * OCCURRED */ 12631 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12632 break; 12633 case CTL_LUN_INJ_CUSTOM: 12634 /* 12635 * We're assuming the user knows what he is doing. 12636 * Just copy the sense information without doing 12637 * checks. 12638 */ 12639 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12640 ctl_min(sizeof(desc->custom_sense), 12641 sizeof(io->scsiio.sense_data))); 12642 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12643 io->scsiio.sense_len = SSD_FULL_SIZE; 12644 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12645 break; 12646 case CTL_LUN_INJ_NONE: 12647 default: 12648 /* 12649 * If this is an error injection type we don't know 12650 * about, clear the continuous flag (if it is set) 12651 * so it will get deleted below. 12652 */ 12653 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12654 break; 12655 } 12656 /* 12657 * By default, each error injection action is a one-shot 12658 */ 12659 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12660 continue; 12661 12662 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12663 12664 free(desc, M_CTL); 12665 } 12666} 12667 12668#ifdef CTL_IO_DELAY 12669static void 12670ctl_datamove_timer_wakeup(void *arg) 12671{ 12672 union ctl_io *io; 12673 12674 io = (union ctl_io *)arg; 12675 12676 ctl_datamove(io); 12677} 12678#endif /* CTL_IO_DELAY */ 12679 12680void 12681ctl_datamove(union ctl_io *io) 12682{ 12683 void (*fe_datamove)(union ctl_io *io); 12684 12685 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12686 12687 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12688 12689#ifdef CTL_TIME_IO 12690 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12691 char str[256]; 12692 char path_str[64]; 12693 struct sbuf sb; 12694 12695 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12696 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12697 12698 sbuf_cat(&sb, path_str); 12699 switch (io->io_hdr.io_type) { 12700 case CTL_IO_SCSI: 12701 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12702 sbuf_printf(&sb, "\n"); 12703 sbuf_cat(&sb, path_str); 12704 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12705 io->scsiio.tag_num, io->scsiio.tag_type); 12706 break; 12707 case CTL_IO_TASK: 12708 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12709 "Tag Type: %d\n", io->taskio.task_action, 12710 io->taskio.tag_num, io->taskio.tag_type); 12711 break; 12712 default: 12713 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12714 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12715 break; 12716 } 12717 sbuf_cat(&sb, path_str); 12718 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12719 (intmax_t)time_uptime - io->io_hdr.start_time); 12720 sbuf_finish(&sb); 12721 printf("%s", sbuf_data(&sb)); 12722 } 12723#endif /* CTL_TIME_IO */ 12724 12725#ifdef CTL_IO_DELAY 12726 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12727 struct ctl_lun *lun; 12728 12729 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12730 12731 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12732 } else { 12733 struct ctl_lun *lun; 12734 12735 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12736 if ((lun != NULL) 12737 && (lun->delay_info.datamove_delay > 0)) { 12738 struct callout *callout; 12739 12740 callout = (struct callout *)&io->io_hdr.timer_bytes; 12741 callout_init(callout, /*mpsafe*/ 1); 12742 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12743 callout_reset(callout, 12744 lun->delay_info.datamove_delay * hz, 12745 ctl_datamove_timer_wakeup, io); 12746 if (lun->delay_info.datamove_type == 12747 CTL_DELAY_TYPE_ONESHOT) 12748 lun->delay_info.datamove_delay = 0; 12749 return; 12750 } 12751 } 12752#endif 12753 12754 /* 12755 * This command has been aborted. Set the port status, so we fail 12756 * the data move. 12757 */ 12758 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12759 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12760 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12761 io->io_hdr.nexus.targ_port, 12762 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12763 io->io_hdr.nexus.targ_lun); 12764 io->io_hdr.port_status = 31337; 12765 /* 12766 * Note that the backend, in this case, will get the 12767 * callback in its context. In other cases it may get 12768 * called in the frontend's interrupt thread context. 12769 */ 12770 io->scsiio.be_move_done(io); 12771 return; 12772 } 12773 12774 /* 12775 * If we're in XFER mode and this I/O is from the other shelf 12776 * controller, we need to send the DMA to the other side to 12777 * actually transfer the data to/from the host. In serialize only 12778 * mode the transfer happens below CTL and ctl_datamove() is only 12779 * called on the machine that originally received the I/O. 12780 */ 12781 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12782 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12783 union ctl_ha_msg msg; 12784 uint32_t sg_entries_sent; 12785 int do_sg_copy; 12786 int i; 12787 12788 memset(&msg, 0, sizeof(msg)); 12789 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12790 msg.hdr.original_sc = io->io_hdr.original_sc; 12791 msg.hdr.serializing_sc = io; 12792 msg.hdr.nexus = io->io_hdr.nexus; 12793 msg.dt.flags = io->io_hdr.flags; 12794 /* 12795 * We convert everything into a S/G list here. We can't 12796 * pass by reference, only by value between controllers. 12797 * So we can't pass a pointer to the S/G list, only as many 12798 * S/G entries as we can fit in here. If it's possible for 12799 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12800 * then we need to break this up into multiple transfers. 12801 */ 12802 if (io->scsiio.kern_sg_entries == 0) { 12803 msg.dt.kern_sg_entries = 1; 12804 /* 12805 * If this is in cached memory, flush the cache 12806 * before we send the DMA request to the other 12807 * controller. We want to do this in either the 12808 * read or the write case. The read case is 12809 * straightforward. In the write case, we want to 12810 * make sure nothing is in the local cache that 12811 * could overwrite the DMAed data. 12812 */ 12813 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12814 /* 12815 * XXX KDM use bus_dmamap_sync() here. 12816 */ 12817 } 12818 12819 /* 12820 * Convert to a physical address if this is a 12821 * virtual address. 12822 */ 12823 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12824 msg.dt.sg_list[0].addr = 12825 io->scsiio.kern_data_ptr; 12826 } else { 12827 /* 12828 * XXX KDM use busdma here! 12829 */ 12830#if 0 12831 msg.dt.sg_list[0].addr = (void *) 12832 vtophys(io->scsiio.kern_data_ptr); 12833#endif 12834 } 12835 12836 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12837 do_sg_copy = 0; 12838 } else { 12839 struct ctl_sg_entry *sgl; 12840 12841 do_sg_copy = 1; 12842 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12843 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12844 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12845 /* 12846 * XXX KDM use bus_dmamap_sync() here. 12847 */ 12848 } 12849 } 12850 12851 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12852 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12853 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12854 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12855 msg.dt.sg_sequence = 0; 12856 12857 /* 12858 * Loop until we've sent all of the S/G entries. On the 12859 * other end, we'll recompose these S/G entries into one 12860 * contiguous list before passing it to the 12861 */ 12862 for (sg_entries_sent = 0; sg_entries_sent < 12863 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12864 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12865 sizeof(msg.dt.sg_list[0])), 12866 msg.dt.kern_sg_entries - sg_entries_sent); 12867 12868 if (do_sg_copy != 0) { 12869 struct ctl_sg_entry *sgl; 12870 int j; 12871 12872 sgl = (struct ctl_sg_entry *) 12873 io->scsiio.kern_data_ptr; 12874 /* 12875 * If this is in cached memory, flush the cache 12876 * before we send the DMA request to the other 12877 * controller. We want to do this in either 12878 * the * read or the write case. The read 12879 * case is straightforward. In the write 12880 * case, we want to make sure nothing is 12881 * in the local cache that could overwrite 12882 * the DMAed data. 12883 */ 12884 12885 for (i = sg_entries_sent, j = 0; 12886 i < msg.dt.cur_sg_entries; i++, j++) { 12887 if ((io->io_hdr.flags & 12888 CTL_FLAG_NO_DATASYNC) == 0) { 12889 /* 12890 * XXX KDM use bus_dmamap_sync() 12891 */ 12892 } 12893 if ((io->io_hdr.flags & 12894 CTL_FLAG_BUS_ADDR) == 0) { 12895 /* 12896 * XXX KDM use busdma. 12897 */ 12898#if 0 12899 msg.dt.sg_list[j].addr =(void *) 12900 vtophys(sgl[i].addr); 12901#endif 12902 } else { 12903 msg.dt.sg_list[j].addr = 12904 sgl[i].addr; 12905 } 12906 msg.dt.sg_list[j].len = sgl[i].len; 12907 } 12908 } 12909 12910 sg_entries_sent += msg.dt.cur_sg_entries; 12911 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12912 msg.dt.sg_last = 1; 12913 else 12914 msg.dt.sg_last = 0; 12915 12916 /* 12917 * XXX KDM drop and reacquire the lock here? 12918 */ 12919 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12920 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12921 /* 12922 * XXX do something here. 12923 */ 12924 } 12925 12926 msg.dt.sent_sg_entries = sg_entries_sent; 12927 } 12928 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12929 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12930 ctl_failover_io(io, /*have_lock*/ 0); 12931 12932 } else { 12933 12934 /* 12935 * Lookup the fe_datamove() function for this particular 12936 * front end. 12937 */ 12938 fe_datamove = 12939 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12940 12941 fe_datamove(io); 12942 } 12943} 12944 12945static void 12946ctl_send_datamove_done(union ctl_io *io, int have_lock) 12947{ 12948 union ctl_ha_msg msg; 12949 int isc_status; 12950 12951 memset(&msg, 0, sizeof(msg)); 12952 12953 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12954 msg.hdr.original_sc = io; 12955 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12956 msg.hdr.nexus = io->io_hdr.nexus; 12957 msg.hdr.status = io->io_hdr.status; 12958 msg.scsi.tag_num = io->scsiio.tag_num; 12959 msg.scsi.tag_type = io->scsiio.tag_type; 12960 msg.scsi.scsi_status = io->scsiio.scsi_status; 12961 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12962 sizeof(io->scsiio.sense_data)); 12963 msg.scsi.sense_len = io->scsiio.sense_len; 12964 msg.scsi.sense_residual = io->scsiio.sense_residual; 12965 msg.scsi.fetd_status = io->io_hdr.port_status; 12966 msg.scsi.residual = io->scsiio.residual; 12967 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12968 12969 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12970 ctl_failover_io(io, /*have_lock*/ have_lock); 12971 return; 12972 } 12973 12974 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12975 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12976 /* XXX do something if this fails */ 12977 } 12978 12979} 12980 12981/* 12982 * The DMA to the remote side is done, now we need to tell the other side 12983 * we're done so it can continue with its data movement. 12984 */ 12985static void 12986ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12987{ 12988 union ctl_io *io; 12989 12990 io = rq->context; 12991 12992 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12993 printf("%s: ISC DMA write failed with error %d", __func__, 12994 rq->ret); 12995 ctl_set_internal_failure(&io->scsiio, 12996 /*sks_valid*/ 1, 12997 /*retry_count*/ rq->ret); 12998 } 12999 13000 ctl_dt_req_free(rq); 13001 13002 /* 13003 * In this case, we had to malloc the memory locally. Free it. 13004 */ 13005 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13006 int i; 13007 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13008 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13009 } 13010 /* 13011 * The data is in local and remote memory, so now we need to send 13012 * status (good or back) back to the other side. 13013 */ 13014 ctl_send_datamove_done(io, /*have_lock*/ 0); 13015} 13016 13017/* 13018 * We've moved the data from the host/controller into local memory. Now we 13019 * need to push it over to the remote controller's memory. 13020 */ 13021static int 13022ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13023{ 13024 int retval; 13025 13026 retval = 0; 13027 13028 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13029 ctl_datamove_remote_write_cb); 13030 13031 return (retval); 13032} 13033 13034static void 13035ctl_datamove_remote_write(union ctl_io *io) 13036{ 13037 int retval; 13038 void (*fe_datamove)(union ctl_io *io); 13039 13040 /* 13041 * - Get the data from the host/HBA into local memory. 13042 * - DMA memory from the local controller to the remote controller. 13043 * - Send status back to the remote controller. 13044 */ 13045 13046 retval = ctl_datamove_remote_sgl_setup(io); 13047 if (retval != 0) 13048 return; 13049 13050 /* Switch the pointer over so the FETD knows what to do */ 13051 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13052 13053 /* 13054 * Use a custom move done callback, since we need to send completion 13055 * back to the other controller, not to the backend on this side. 13056 */ 13057 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13058 13059 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13060 13061 fe_datamove(io); 13062 13063 return; 13064 13065} 13066 13067static int 13068ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13069{ 13070#if 0 13071 char str[256]; 13072 char path_str[64]; 13073 struct sbuf sb; 13074#endif 13075 13076 /* 13077 * In this case, we had to malloc the memory locally. Free it. 13078 */ 13079 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13080 int i; 13081 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13082 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13083 } 13084 13085#if 0 13086 scsi_path_string(io, path_str, sizeof(path_str)); 13087 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13088 sbuf_cat(&sb, path_str); 13089 scsi_command_string(&io->scsiio, NULL, &sb); 13090 sbuf_printf(&sb, "\n"); 13091 sbuf_cat(&sb, path_str); 13092 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13093 io->scsiio.tag_num, io->scsiio.tag_type); 13094 sbuf_cat(&sb, path_str); 13095 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13096 io->io_hdr.flags, io->io_hdr.status); 13097 sbuf_finish(&sb); 13098 printk("%s", sbuf_data(&sb)); 13099#endif 13100 13101 13102 /* 13103 * The read is done, now we need to send status (good or bad) back 13104 * to the other side. 13105 */ 13106 ctl_send_datamove_done(io, /*have_lock*/ 0); 13107 13108 return (0); 13109} 13110 13111static void 13112ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13113{ 13114 union ctl_io *io; 13115 void (*fe_datamove)(union ctl_io *io); 13116 13117 io = rq->context; 13118 13119 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13120 printf("%s: ISC DMA read failed with error %d", __func__, 13121 rq->ret); 13122 ctl_set_internal_failure(&io->scsiio, 13123 /*sks_valid*/ 1, 13124 /*retry_count*/ rq->ret); 13125 } 13126 13127 ctl_dt_req_free(rq); 13128 13129 /* Switch the pointer over so the FETD knows what to do */ 13130 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13131 13132 /* 13133 * Use a custom move done callback, since we need to send completion 13134 * back to the other controller, not to the backend on this side. 13135 */ 13136 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13137 13138 /* XXX KDM add checks like the ones in ctl_datamove? */ 13139 13140 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13141 13142 fe_datamove(io); 13143} 13144 13145static int 13146ctl_datamove_remote_sgl_setup(union ctl_io *io) 13147{ 13148 struct ctl_sg_entry *local_sglist, *remote_sglist; 13149 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13150 struct ctl_softc *softc; 13151 int retval; 13152 int i; 13153 13154 retval = 0; 13155 softc = control_softc; 13156 13157 local_sglist = io->io_hdr.local_sglist; 13158 local_dma_sglist = io->io_hdr.local_dma_sglist; 13159 remote_sglist = io->io_hdr.remote_sglist; 13160 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13161 13162 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13163 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13164 local_sglist[i].len = remote_sglist[i].len; 13165 13166 /* 13167 * XXX Detect the situation where the RS-level I/O 13168 * redirector on the other side has already read the 13169 * data off of the AOR RS on this side, and 13170 * transferred it to remote (mirror) memory on the 13171 * other side. Since we already have the data in 13172 * memory here, we just need to use it. 13173 * 13174 * XXX KDM this can probably be removed once we 13175 * get the cache device code in and take the 13176 * current AOR implementation out. 13177 */ 13178#ifdef NEEDTOPORT 13179 if ((remote_sglist[i].addr >= 13180 (void *)vtophys(softc->mirr->addr)) 13181 && (remote_sglist[i].addr < 13182 ((void *)vtophys(softc->mirr->addr) + 13183 CacheMirrorOffset))) { 13184 local_sglist[i].addr = remote_sglist[i].addr - 13185 CacheMirrorOffset; 13186 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13187 CTL_FLAG_DATA_IN) 13188 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13189 } else { 13190 local_sglist[i].addr = remote_sglist[i].addr + 13191 CacheMirrorOffset; 13192 } 13193#endif 13194#if 0 13195 printf("%s: local %p, remote %p, len %d\n", 13196 __func__, local_sglist[i].addr, 13197 remote_sglist[i].addr, local_sglist[i].len); 13198#endif 13199 } 13200 } else { 13201 uint32_t len_to_go; 13202 13203 /* 13204 * In this case, we don't have automatically allocated 13205 * memory for this I/O on this controller. This typically 13206 * happens with internal CTL I/O -- e.g. inquiry, mode 13207 * sense, etc. Anything coming from RAIDCore will have 13208 * a mirror area available. 13209 */ 13210 len_to_go = io->scsiio.kern_data_len; 13211 13212 /* 13213 * Clear the no datasync flag, we have to use malloced 13214 * buffers. 13215 */ 13216 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13217 13218 /* 13219 * The difficult thing here is that the size of the various 13220 * S/G segments may be different than the size from the 13221 * remote controller. That'll make it harder when DMAing 13222 * the data back to the other side. 13223 */ 13224 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13225 sizeof(io->io_hdr.remote_sglist[0])) && 13226 (len_to_go > 0); i++) { 13227 local_sglist[i].len = ctl_min(len_to_go, 131072); 13228 CTL_SIZE_8B(local_dma_sglist[i].len, 13229 local_sglist[i].len); 13230 local_sglist[i].addr = 13231 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13232 13233 local_dma_sglist[i].addr = local_sglist[i].addr; 13234 13235 if (local_sglist[i].addr == NULL) { 13236 int j; 13237 13238 printf("malloc failed for %zd bytes!", 13239 local_dma_sglist[i].len); 13240 for (j = 0; j < i; j++) { 13241 free(local_sglist[j].addr, M_CTL); 13242 } 13243 ctl_set_internal_failure(&io->scsiio, 13244 /*sks_valid*/ 1, 13245 /*retry_count*/ 4857); 13246 retval = 1; 13247 goto bailout_error; 13248 13249 } 13250 /* XXX KDM do we need a sync here? */ 13251 13252 len_to_go -= local_sglist[i].len; 13253 } 13254 /* 13255 * Reset the number of S/G entries accordingly. The 13256 * original number of S/G entries is available in 13257 * rem_sg_entries. 13258 */ 13259 io->scsiio.kern_sg_entries = i; 13260 13261#if 0 13262 printf("%s: kern_sg_entries = %d\n", __func__, 13263 io->scsiio.kern_sg_entries); 13264 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13265 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13266 local_sglist[i].addr, local_sglist[i].len, 13267 local_dma_sglist[i].len); 13268#endif 13269 } 13270 13271 13272 return (retval); 13273 13274bailout_error: 13275 13276 ctl_send_datamove_done(io, /*have_lock*/ 0); 13277 13278 return (retval); 13279} 13280 13281static int 13282ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13283 ctl_ha_dt_cb callback) 13284{ 13285 struct ctl_ha_dt_req *rq; 13286 struct ctl_sg_entry *remote_sglist, *local_sglist; 13287 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13288 uint32_t local_used, remote_used, total_used; 13289 int retval; 13290 int i, j; 13291 13292 retval = 0; 13293 13294 rq = ctl_dt_req_alloc(); 13295 13296 /* 13297 * If we failed to allocate the request, and if the DMA didn't fail 13298 * anyway, set busy status. This is just a resource allocation 13299 * failure. 13300 */ 13301 if ((rq == NULL) 13302 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13303 ctl_set_busy(&io->scsiio); 13304 13305 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13306 13307 if (rq != NULL) 13308 ctl_dt_req_free(rq); 13309 13310 /* 13311 * The data move failed. We need to return status back 13312 * to the other controller. No point in trying to DMA 13313 * data to the remote controller. 13314 */ 13315 13316 ctl_send_datamove_done(io, /*have_lock*/ 0); 13317 13318 retval = 1; 13319 13320 goto bailout; 13321 } 13322 13323 local_sglist = io->io_hdr.local_sglist; 13324 local_dma_sglist = io->io_hdr.local_dma_sglist; 13325 remote_sglist = io->io_hdr.remote_sglist; 13326 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13327 local_used = 0; 13328 remote_used = 0; 13329 total_used = 0; 13330 13331 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13332 rq->ret = CTL_HA_STATUS_SUCCESS; 13333 rq->context = io; 13334 callback(rq); 13335 goto bailout; 13336 } 13337 13338 /* 13339 * Pull/push the data over the wire from/to the other controller. 13340 * This takes into account the possibility that the local and 13341 * remote sglists may not be identical in terms of the size of 13342 * the elements and the number of elements. 13343 * 13344 * One fundamental assumption here is that the length allocated for 13345 * both the local and remote sglists is identical. Otherwise, we've 13346 * essentially got a coding error of some sort. 13347 */ 13348 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13349 int isc_ret; 13350 uint32_t cur_len, dma_length; 13351 uint8_t *tmp_ptr; 13352 13353 rq->id = CTL_HA_DATA_CTL; 13354 rq->command = command; 13355 rq->context = io; 13356 13357 /* 13358 * Both pointers should be aligned. But it is possible 13359 * that the allocation length is not. They should both 13360 * also have enough slack left over at the end, though, 13361 * to round up to the next 8 byte boundary. 13362 */ 13363 cur_len = ctl_min(local_sglist[i].len - local_used, 13364 remote_sglist[j].len - remote_used); 13365 13366 /* 13367 * In this case, we have a size issue and need to decrease 13368 * the size, except in the case where we actually have less 13369 * than 8 bytes left. In that case, we need to increase 13370 * the DMA length to get the last bit. 13371 */ 13372 if ((cur_len & 0x7) != 0) { 13373 if (cur_len > 0x7) { 13374 cur_len = cur_len - (cur_len & 0x7); 13375 dma_length = cur_len; 13376 } else { 13377 CTL_SIZE_8B(dma_length, cur_len); 13378 } 13379 13380 } else 13381 dma_length = cur_len; 13382 13383 /* 13384 * If we had to allocate memory for this I/O, instead of using 13385 * the non-cached mirror memory, we'll need to flush the cache 13386 * before trying to DMA to the other controller. 13387 * 13388 * We could end up doing this multiple times for the same 13389 * segment if we have a larger local segment than remote 13390 * segment. That shouldn't be an issue. 13391 */ 13392 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13393 /* 13394 * XXX KDM use bus_dmamap_sync() here. 13395 */ 13396 } 13397 13398 rq->size = dma_length; 13399 13400 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13401 tmp_ptr += local_used; 13402 13403 /* Use physical addresses when talking to ISC hardware */ 13404 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13405 /* XXX KDM use busdma */ 13406#if 0 13407 rq->local = vtophys(tmp_ptr); 13408#endif 13409 } else 13410 rq->local = tmp_ptr; 13411 13412 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13413 tmp_ptr += remote_used; 13414 rq->remote = tmp_ptr; 13415 13416 rq->callback = NULL; 13417 13418 local_used += cur_len; 13419 if (local_used >= local_sglist[i].len) { 13420 i++; 13421 local_used = 0; 13422 } 13423 13424 remote_used += cur_len; 13425 if (remote_used >= remote_sglist[j].len) { 13426 j++; 13427 remote_used = 0; 13428 } 13429 total_used += cur_len; 13430 13431 if (total_used >= io->scsiio.kern_data_len) 13432 rq->callback = callback; 13433 13434 if ((rq->size & 0x7) != 0) { 13435 printf("%s: warning: size %d is not on 8b boundary\n", 13436 __func__, rq->size); 13437 } 13438 if (((uintptr_t)rq->local & 0x7) != 0) { 13439 printf("%s: warning: local %p not on 8b boundary\n", 13440 __func__, rq->local); 13441 } 13442 if (((uintptr_t)rq->remote & 0x7) != 0) { 13443 printf("%s: warning: remote %p not on 8b boundary\n", 13444 __func__, rq->local); 13445 } 13446#if 0 13447 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13448 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13449 rq->local, rq->remote, rq->size); 13450#endif 13451 13452 isc_ret = ctl_dt_single(rq); 13453 if (isc_ret == CTL_HA_STATUS_WAIT) 13454 continue; 13455 13456 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13457 rq->ret = CTL_HA_STATUS_SUCCESS; 13458 } else { 13459 rq->ret = isc_ret; 13460 } 13461 callback(rq); 13462 goto bailout; 13463 } 13464 13465bailout: 13466 return (retval); 13467 13468} 13469 13470static void 13471ctl_datamove_remote_read(union ctl_io *io) 13472{ 13473 int retval; 13474 int i; 13475 13476 /* 13477 * This will send an error to the other controller in the case of a 13478 * failure. 13479 */ 13480 retval = ctl_datamove_remote_sgl_setup(io); 13481 if (retval != 0) 13482 return; 13483 13484 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13485 ctl_datamove_remote_read_cb); 13486 if ((retval != 0) 13487 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13488 /* 13489 * Make sure we free memory if there was an error.. The 13490 * ctl_datamove_remote_xfer() function will send the 13491 * datamove done message, or call the callback with an 13492 * error if there is a problem. 13493 */ 13494 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13495 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13496 } 13497 13498 return; 13499} 13500 13501/* 13502 * Process a datamove request from the other controller. This is used for 13503 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13504 * first. Once that is complete, the data gets DMAed into the remote 13505 * controller's memory. For reads, we DMA from the remote controller's 13506 * memory into our memory first, and then move it out to the FETD. 13507 */ 13508static void 13509ctl_datamove_remote(union ctl_io *io) 13510{ 13511 struct ctl_softc *softc; 13512 13513 softc = control_softc; 13514 13515 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13516 13517 /* 13518 * Note that we look for an aborted I/O here, but don't do some of 13519 * the other checks that ctl_datamove() normally does. 13520 * We don't need to run the datamove delay code, since that should 13521 * have been done if need be on the other controller. 13522 */ 13523 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13524 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13525 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13526 io->io_hdr.nexus.targ_port, 13527 io->io_hdr.nexus.targ_target.id, 13528 io->io_hdr.nexus.targ_lun); 13529 io->io_hdr.port_status = 31338; 13530 ctl_send_datamove_done(io, /*have_lock*/ 0); 13531 return; 13532 } 13533 13534 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13535 ctl_datamove_remote_write(io); 13536 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13537 ctl_datamove_remote_read(io); 13538 } else { 13539 union ctl_ha_msg msg; 13540 struct scsi_sense_data *sense; 13541 uint8_t sks[3]; 13542 int retry_count; 13543 13544 memset(&msg, 0, sizeof(msg)); 13545 13546 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13547 msg.hdr.status = CTL_SCSI_ERROR; 13548 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13549 13550 retry_count = 4243; 13551 13552 sense = &msg.scsi.sense_data; 13553 sks[0] = SSD_SCS_VALID; 13554 sks[1] = (retry_count >> 8) & 0xff; 13555 sks[2] = retry_count & 0xff; 13556 13557 /* "Internal target failure" */ 13558 scsi_set_sense_data(sense, 13559 /*sense_format*/ SSD_TYPE_NONE, 13560 /*current_error*/ 1, 13561 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13562 /*asc*/ 0x44, 13563 /*ascq*/ 0x00, 13564 /*type*/ SSD_ELEM_SKS, 13565 /*size*/ sizeof(sks), 13566 /*data*/ sks, 13567 SSD_ELEM_NONE); 13568 13569 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13570 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13571 ctl_failover_io(io, /*have_lock*/ 1); 13572 return; 13573 } 13574 13575 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13576 CTL_HA_STATUS_SUCCESS) { 13577 /* XXX KDM what to do if this fails? */ 13578 } 13579 return; 13580 } 13581 13582} 13583 13584static int 13585ctl_process_done(union ctl_io *io) 13586{ 13587 struct ctl_lun *lun; 13588 struct ctl_softc *ctl_softc; 13589 void (*fe_done)(union ctl_io *io); 13590 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13591 13592 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13593 13594 fe_done = 13595 control_softc->ctl_ports[targ_port]->fe_done; 13596 13597#ifdef CTL_TIME_IO 13598 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13599 char str[256]; 13600 char path_str[64]; 13601 struct sbuf sb; 13602 13603 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13604 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13605 13606 sbuf_cat(&sb, path_str); 13607 switch (io->io_hdr.io_type) { 13608 case CTL_IO_SCSI: 13609 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13610 sbuf_printf(&sb, "\n"); 13611 sbuf_cat(&sb, path_str); 13612 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13613 io->scsiio.tag_num, io->scsiio.tag_type); 13614 break; 13615 case CTL_IO_TASK: 13616 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13617 "Tag Type: %d\n", io->taskio.task_action, 13618 io->taskio.tag_num, io->taskio.tag_type); 13619 break; 13620 default: 13621 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13622 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13623 break; 13624 } 13625 sbuf_cat(&sb, path_str); 13626 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13627 (intmax_t)time_uptime - io->io_hdr.start_time); 13628 sbuf_finish(&sb); 13629 printf("%s", sbuf_data(&sb)); 13630 } 13631#endif /* CTL_TIME_IO */ 13632 13633 switch (io->io_hdr.io_type) { 13634 case CTL_IO_SCSI: 13635 break; 13636 case CTL_IO_TASK: 13637 if (bootverbose || verbose > 0) 13638 ctl_io_error_print(io, NULL); 13639 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13640 ctl_free_io(io); 13641 else 13642 fe_done(io); 13643 return (CTL_RETVAL_COMPLETE); 13644 break; 13645 default: 13646 printf("ctl_process_done: invalid io type %d\n", 13647 io->io_hdr.io_type); 13648 panic("ctl_process_done: invalid io type %d\n", 13649 io->io_hdr.io_type); 13650 break; /* NOTREACHED */ 13651 } 13652 13653 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13654 if (lun == NULL) { 13655 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13656 io->io_hdr.nexus.targ_mapped_lun)); 13657 fe_done(io); 13658 goto bailout; 13659 } 13660 ctl_softc = lun->ctl_softc; 13661 13662 mtx_lock(&lun->lun_lock); 13663 13664 /* 13665 * Check to see if we have any errors to inject here. We only 13666 * inject errors for commands that don't already have errors set. 13667 */ 13668 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13669 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13670 ctl_inject_error(lun, io); 13671 13672 /* 13673 * XXX KDM how do we treat commands that aren't completed 13674 * successfully? 13675 * 13676 * XXX KDM should we also track I/O latency? 13677 */ 13678 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13679 io->io_hdr.io_type == CTL_IO_SCSI) { 13680#ifdef CTL_TIME_IO 13681 struct bintime cur_bt; 13682#endif 13683 int type; 13684 13685 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13686 CTL_FLAG_DATA_IN) 13687 type = CTL_STATS_READ; 13688 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13689 CTL_FLAG_DATA_OUT) 13690 type = CTL_STATS_WRITE; 13691 else 13692 type = CTL_STATS_NO_IO; 13693 13694 lun->stats.ports[targ_port].bytes[type] += 13695 io->scsiio.kern_total_len; 13696 lun->stats.ports[targ_port].operations[type]++; 13697#ifdef CTL_TIME_IO 13698 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13699 &io->io_hdr.dma_bt); 13700 lun->stats.ports[targ_port].num_dmas[type] += 13701 io->io_hdr.num_dmas; 13702 getbintime(&cur_bt); 13703 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13704 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13705#endif 13706 } 13707 13708 /* 13709 * Remove this from the OOA queue. 13710 */ 13711 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13712 13713 /* 13714 * Run through the blocked queue on this LUN and see if anything 13715 * has become unblocked, now that this transaction is done. 13716 */ 13717 ctl_check_blocked(lun); 13718 13719 /* 13720 * If the LUN has been invalidated, free it if there is nothing 13721 * left on its OOA queue. 13722 */ 13723 if ((lun->flags & CTL_LUN_INVALID) 13724 && TAILQ_EMPTY(&lun->ooa_queue)) { 13725 mtx_unlock(&lun->lun_lock); 13726 mtx_lock(&ctl_softc->ctl_lock); 13727 ctl_free_lun(lun); 13728 mtx_unlock(&ctl_softc->ctl_lock); 13729 } else 13730 mtx_unlock(&lun->lun_lock); 13731 13732 /* 13733 * If this command has been aborted, make sure we set the status 13734 * properly. The FETD is responsible for freeing the I/O and doing 13735 * whatever it needs to do to clean up its state. 13736 */ 13737 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13738 ctl_set_task_aborted(&io->scsiio); 13739 13740 /* 13741 * We print out status for every task management command. For SCSI 13742 * commands, we filter out any unit attention errors; they happen 13743 * on every boot, and would clutter up the log. Note: task 13744 * management commands aren't printed here, they are printed above, 13745 * since they should never even make it down here. 13746 */ 13747 switch (io->io_hdr.io_type) { 13748 case CTL_IO_SCSI: { 13749 int error_code, sense_key, asc, ascq; 13750 13751 sense_key = 0; 13752 13753 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13754 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13755 /* 13756 * Since this is just for printing, no need to 13757 * show errors here. 13758 */ 13759 scsi_extract_sense_len(&io->scsiio.sense_data, 13760 io->scsiio.sense_len, 13761 &error_code, 13762 &sense_key, 13763 &asc, 13764 &ascq, 13765 /*show_errors*/ 0); 13766 } 13767 13768 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13769 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13770 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13771 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13772 13773 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13774 ctl_softc->skipped_prints++; 13775 } else { 13776 uint32_t skipped_prints; 13777 13778 skipped_prints = ctl_softc->skipped_prints; 13779 13780 ctl_softc->skipped_prints = 0; 13781 ctl_softc->last_print_jiffies = time_uptime; 13782 13783 if (skipped_prints > 0) { 13784#ifdef NEEDTOPORT 13785 csevent_log(CSC_CTL | CSC_SHELF_SW | 13786 CTL_ERROR_REPORT, 13787 csevent_LogType_Trace, 13788 csevent_Severity_Information, 13789 csevent_AlertLevel_Green, 13790 csevent_FRU_Firmware, 13791 csevent_FRU_Unknown, 13792 "High CTL error volume, %d prints " 13793 "skipped", skipped_prints); 13794#endif 13795 } 13796 if (bootverbose || verbose > 0) 13797 ctl_io_error_print(io, NULL); 13798 } 13799 } 13800 break; 13801 } 13802 case CTL_IO_TASK: 13803 if (bootverbose || verbose > 0) 13804 ctl_io_error_print(io, NULL); 13805 break; 13806 default: 13807 break; 13808 } 13809 13810 /* 13811 * Tell the FETD or the other shelf controller we're done with this 13812 * command. Note that only SCSI commands get to this point. Task 13813 * management commands are completed above. 13814 * 13815 * We only send status to the other controller if we're in XFER 13816 * mode. In SER_ONLY mode, the I/O is done on the controller that 13817 * received the I/O (from CTL's perspective), and so the status is 13818 * generated there. 13819 * 13820 * XXX KDM if we hold the lock here, we could cause a deadlock 13821 * if the frontend comes back in in this context to queue 13822 * something. 13823 */ 13824 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13825 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13826 union ctl_ha_msg msg; 13827 13828 memset(&msg, 0, sizeof(msg)); 13829 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13830 msg.hdr.original_sc = io->io_hdr.original_sc; 13831 msg.hdr.nexus = io->io_hdr.nexus; 13832 msg.hdr.status = io->io_hdr.status; 13833 msg.scsi.scsi_status = io->scsiio.scsi_status; 13834 msg.scsi.tag_num = io->scsiio.tag_num; 13835 msg.scsi.tag_type = io->scsiio.tag_type; 13836 msg.scsi.sense_len = io->scsiio.sense_len; 13837 msg.scsi.sense_residual = io->scsiio.sense_residual; 13838 msg.scsi.residual = io->scsiio.residual; 13839 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13840 sizeof(io->scsiio.sense_data)); 13841 /* 13842 * We copy this whether or not this is an I/O-related 13843 * command. Otherwise, we'd have to go and check to see 13844 * whether it's a read/write command, and it really isn't 13845 * worth it. 13846 */ 13847 memcpy(&msg.scsi.lbalen, 13848 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13849 sizeof(msg.scsi.lbalen)); 13850 13851 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13852 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13853 /* XXX do something here */ 13854 } 13855 13856 ctl_free_io(io); 13857 } else 13858 fe_done(io); 13859 13860bailout: 13861 13862 return (CTL_RETVAL_COMPLETE); 13863} 13864 13865#ifdef CTL_WITH_CA 13866/* 13867 * Front end should call this if it doesn't do autosense. When the request 13868 * sense comes back in from the initiator, we'll dequeue this and send it. 13869 */ 13870int 13871ctl_queue_sense(union ctl_io *io) 13872{ 13873 struct ctl_lun *lun; 13874 struct ctl_softc *ctl_softc; 13875 uint32_t initidx, targ_lun; 13876 13877 ctl_softc = control_softc; 13878 13879 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13880 13881 /* 13882 * LUN lookup will likely move to the ctl_work_thread() once we 13883 * have our new queueing infrastructure (that doesn't put things on 13884 * a per-LUN queue initially). That is so that we can handle 13885 * things like an INQUIRY to a LUN that we don't have enabled. We 13886 * can't deal with that right now. 13887 */ 13888 mtx_lock(&ctl_softc->ctl_lock); 13889 13890 /* 13891 * If we don't have a LUN for this, just toss the sense 13892 * information. 13893 */ 13894 targ_lun = io->io_hdr.nexus.targ_lun; 13895 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13896 if ((targ_lun < CTL_MAX_LUNS) 13897 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13898 lun = ctl_softc->ctl_luns[targ_lun]; 13899 else 13900 goto bailout; 13901 13902 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13903 13904 mtx_lock(&lun->lun_lock); 13905 /* 13906 * Already have CA set for this LUN...toss the sense information. 13907 */ 13908 if (ctl_is_set(lun->have_ca, initidx)) { 13909 mtx_unlock(&lun->lun_lock); 13910 goto bailout; 13911 } 13912 13913 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13914 ctl_min(sizeof(lun->pending_sense[initidx]), 13915 sizeof(io->scsiio.sense_data))); 13916 ctl_set_mask(lun->have_ca, initidx); 13917 mtx_unlock(&lun->lun_lock); 13918 13919bailout: 13920 mtx_unlock(&ctl_softc->ctl_lock); 13921 13922 ctl_free_io(io); 13923 13924 return (CTL_RETVAL_COMPLETE); 13925} 13926#endif 13927 13928/* 13929 * Primary command inlet from frontend ports. All SCSI and task I/O 13930 * requests must go through this function. 13931 */ 13932int 13933ctl_queue(union ctl_io *io) 13934{ 13935 struct ctl_softc *ctl_softc; 13936 13937 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13938 13939 ctl_softc = control_softc; 13940 13941#ifdef CTL_TIME_IO 13942 io->io_hdr.start_time = time_uptime; 13943 getbintime(&io->io_hdr.start_bt); 13944#endif /* CTL_TIME_IO */ 13945 13946 /* Map FE-specific LUN ID into global one. */ 13947 io->io_hdr.nexus.targ_mapped_lun = 13948 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13949 13950 switch (io->io_hdr.io_type) { 13951 case CTL_IO_SCSI: 13952 case CTL_IO_TASK: 13953 ctl_enqueue_incoming(io); 13954 break; 13955 default: 13956 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13957 return (EINVAL); 13958 } 13959 13960 return (CTL_RETVAL_COMPLETE); 13961} 13962 13963#ifdef CTL_IO_DELAY 13964static void 13965ctl_done_timer_wakeup(void *arg) 13966{ 13967 union ctl_io *io; 13968 13969 io = (union ctl_io *)arg; 13970 ctl_done(io); 13971} 13972#endif /* CTL_IO_DELAY */ 13973 13974void 13975ctl_done(union ctl_io *io) 13976{ 13977 struct ctl_softc *ctl_softc; 13978 13979 ctl_softc = control_softc; 13980 13981 /* 13982 * Enable this to catch duplicate completion issues. 13983 */ 13984#if 0 13985 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13986 printf("%s: type %d msg %d cdb %x iptl: " 13987 "%d:%d:%d:%d tag 0x%04x " 13988 "flag %#x status %x\n", 13989 __func__, 13990 io->io_hdr.io_type, 13991 io->io_hdr.msg_type, 13992 io->scsiio.cdb[0], 13993 io->io_hdr.nexus.initid.id, 13994 io->io_hdr.nexus.targ_port, 13995 io->io_hdr.nexus.targ_target.id, 13996 io->io_hdr.nexus.targ_lun, 13997 (io->io_hdr.io_type == 13998 CTL_IO_TASK) ? 13999 io->taskio.tag_num : 14000 io->scsiio.tag_num, 14001 io->io_hdr.flags, 14002 io->io_hdr.status); 14003 } else 14004 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14005#endif 14006 14007 /* 14008 * This is an internal copy of an I/O, and should not go through 14009 * the normal done processing logic. 14010 */ 14011 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14012 return; 14013 14014 /* 14015 * We need to send a msg to the serializing shelf to finish the IO 14016 * as well. We don't send a finish message to the other shelf if 14017 * this is a task management command. Task management commands 14018 * aren't serialized in the OOA queue, but rather just executed on 14019 * both shelf controllers for commands that originated on that 14020 * controller. 14021 */ 14022 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14023 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14024 union ctl_ha_msg msg_io; 14025 14026 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14027 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14028 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14029 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14030 } 14031 /* continue on to finish IO */ 14032 } 14033#ifdef CTL_IO_DELAY 14034 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14035 struct ctl_lun *lun; 14036 14037 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14038 14039 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14040 } else { 14041 struct ctl_lun *lun; 14042 14043 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14044 14045 if ((lun != NULL) 14046 && (lun->delay_info.done_delay > 0)) { 14047 struct callout *callout; 14048 14049 callout = (struct callout *)&io->io_hdr.timer_bytes; 14050 callout_init(callout, /*mpsafe*/ 1); 14051 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14052 callout_reset(callout, 14053 lun->delay_info.done_delay * hz, 14054 ctl_done_timer_wakeup, io); 14055 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14056 lun->delay_info.done_delay = 0; 14057 return; 14058 } 14059 } 14060#endif /* CTL_IO_DELAY */ 14061 14062 ctl_enqueue_done(io); 14063} 14064 14065int 14066ctl_isc(struct ctl_scsiio *ctsio) 14067{ 14068 struct ctl_lun *lun; 14069 int retval; 14070 14071 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14072 14073 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14074 14075 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14076 14077 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14078 14079 return (retval); 14080} 14081 14082 14083static void 14084ctl_work_thread(void *arg) 14085{ 14086 struct ctl_thread *thr = (struct ctl_thread *)arg; 14087 struct ctl_softc *softc = thr->ctl_softc; 14088 union ctl_io *io; 14089 int retval; 14090 14091 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14092 14093 for (;;) { 14094 retval = 0; 14095 14096 /* 14097 * We handle the queues in this order: 14098 * - ISC 14099 * - done queue (to free up resources, unblock other commands) 14100 * - RtR queue 14101 * - incoming queue 14102 * 14103 * If those queues are empty, we break out of the loop and 14104 * go to sleep. 14105 */ 14106 mtx_lock(&thr->queue_lock); 14107 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14108 if (io != NULL) { 14109 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14110 mtx_unlock(&thr->queue_lock); 14111 ctl_handle_isc(io); 14112 continue; 14113 } 14114 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14115 if (io != NULL) { 14116 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14117 /* clear any blocked commands, call fe_done */ 14118 mtx_unlock(&thr->queue_lock); 14119 retval = ctl_process_done(io); 14120 continue; 14121 } 14122 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14123 if (io != NULL) { 14124 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14125 mtx_unlock(&thr->queue_lock); 14126 if (io->io_hdr.io_type == CTL_IO_TASK) 14127 ctl_run_task(io); 14128 else 14129 ctl_scsiio_precheck(softc, &io->scsiio); 14130 continue; 14131 } 14132 if (!ctl_pause_rtr) { 14133 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14134 if (io != NULL) { 14135 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14136 mtx_unlock(&thr->queue_lock); 14137 retval = ctl_scsiio(&io->scsiio); 14138 if (retval != CTL_RETVAL_COMPLETE) 14139 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14140 continue; 14141 } 14142 } 14143 14144 /* Sleep until we have something to do. */ 14145 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14146 } 14147} 14148 14149static void 14150ctl_lun_thread(void *arg) 14151{ 14152 struct ctl_softc *softc = (struct ctl_softc *)arg; 14153 struct ctl_be_lun *be_lun; 14154 int retval; 14155 14156 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14157 14158 for (;;) { 14159 retval = 0; 14160 mtx_lock(&softc->ctl_lock); 14161 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14162 if (be_lun != NULL) { 14163 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14164 mtx_unlock(&softc->ctl_lock); 14165 ctl_create_lun(be_lun); 14166 continue; 14167 } 14168 14169 /* Sleep until we have something to do. */ 14170 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14171 PDROP | PRIBIO, "-", 0); 14172 } 14173} 14174 14175static void 14176ctl_enqueue_incoming(union ctl_io *io) 14177{ 14178 struct ctl_softc *softc = control_softc; 14179 struct ctl_thread *thr; 14180 u_int idx; 14181 14182 idx = (io->io_hdr.nexus.targ_port * 127 + 14183 io->io_hdr.nexus.initid.id) % worker_threads; 14184 thr = &softc->threads[idx]; 14185 mtx_lock(&thr->queue_lock); 14186 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14187 mtx_unlock(&thr->queue_lock); 14188 wakeup(thr); 14189} 14190 14191static void 14192ctl_enqueue_rtr(union ctl_io *io) 14193{ 14194 struct ctl_softc *softc = control_softc; 14195 struct ctl_thread *thr; 14196 14197 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14198 mtx_lock(&thr->queue_lock); 14199 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14200 mtx_unlock(&thr->queue_lock); 14201 wakeup(thr); 14202} 14203 14204static void 14205ctl_enqueue_done(union ctl_io *io) 14206{ 14207 struct ctl_softc *softc = control_softc; 14208 struct ctl_thread *thr; 14209 14210 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14211 mtx_lock(&thr->queue_lock); 14212 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14213 mtx_unlock(&thr->queue_lock); 14214 wakeup(thr); 14215} 14216 14217static void 14218ctl_enqueue_isc(union ctl_io *io) 14219{ 14220 struct ctl_softc *softc = control_softc; 14221 struct ctl_thread *thr; 14222 14223 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14224 mtx_lock(&thr->queue_lock); 14225 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14226 mtx_unlock(&thr->queue_lock); 14227 wakeup(thr); 14228} 14229 14230/* Initialization and failover */ 14231 14232void 14233ctl_init_isc_msg(void) 14234{ 14235 printf("CTL: Still calling this thing\n"); 14236} 14237 14238/* 14239 * Init component 14240 * Initializes component into configuration defined by bootMode 14241 * (see hasc-sv.c) 14242 * returns hasc_Status: 14243 * OK 14244 * ERROR - fatal error 14245 */ 14246static ctl_ha_comp_status 14247ctl_isc_init(struct ctl_ha_component *c) 14248{ 14249 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14250 14251 c->status = ret; 14252 return ret; 14253} 14254 14255/* Start component 14256 * Starts component in state requested. If component starts successfully, 14257 * it must set its own state to the requestrd state 14258 * When requested state is HASC_STATE_HA, the component may refine it 14259 * by adding _SLAVE or _MASTER flags. 14260 * Currently allowed state transitions are: 14261 * UNKNOWN->HA - initial startup 14262 * UNKNOWN->SINGLE - initial startup when no parter detected 14263 * HA->SINGLE - failover 14264 * returns ctl_ha_comp_status: 14265 * OK - component successfully started in requested state 14266 * FAILED - could not start the requested state, failover may 14267 * be possible 14268 * ERROR - fatal error detected, no future startup possible 14269 */ 14270static ctl_ha_comp_status 14271ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14272{ 14273 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14274 14275 printf("%s: go\n", __func__); 14276 14277 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14278 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14279 ctl_is_single = 0; 14280 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14281 != CTL_HA_STATUS_SUCCESS) { 14282 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14283 ret = CTL_HA_COMP_STATUS_ERROR; 14284 } 14285 } else if (CTL_HA_STATE_IS_HA(c->state) 14286 && CTL_HA_STATE_IS_SINGLE(state)){ 14287 // HA->SINGLE transition 14288 ctl_failover(); 14289 ctl_is_single = 1; 14290 } else { 14291 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14292 c->state, state); 14293 ret = CTL_HA_COMP_STATUS_ERROR; 14294 } 14295 if (CTL_HA_STATE_IS_SINGLE(state)) 14296 ctl_is_single = 1; 14297 14298 c->state = state; 14299 c->status = ret; 14300 return ret; 14301} 14302 14303/* 14304 * Quiesce component 14305 * The component must clear any error conditions (set status to OK) and 14306 * prepare itself to another Start call 14307 * returns ctl_ha_comp_status: 14308 * OK 14309 * ERROR 14310 */ 14311static ctl_ha_comp_status 14312ctl_isc_quiesce(struct ctl_ha_component *c) 14313{ 14314 int ret = CTL_HA_COMP_STATUS_OK; 14315 14316 ctl_pause_rtr = 1; 14317 c->status = ret; 14318 return ret; 14319} 14320 14321struct ctl_ha_component ctl_ha_component_ctlisc = 14322{ 14323 .name = "CTL ISC", 14324 .state = CTL_HA_STATE_UNKNOWN, 14325 .init = ctl_isc_init, 14326 .start = ctl_isc_start, 14327 .quiesce = ctl_isc_quiesce 14328}; 14329 14330/* 14331 * vim: ts=8 14332 */ 14333