ctl.c revision 271940
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 271940 2014-09-22 00:40:20Z 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); 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); 648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 649 io->io_hdr.flags |= 650 entry->flags & CTL_FLAG_DATA_MASK; 651 } 652 ctl_enqueue_isc(io); 653 break; 654 655 /* Performed on the Originating SC, XFER mode only */ 656 case CTL_MSG_DATAMOVE: { 657 struct ctl_sg_entry *sgl; 658 int i, j; 659 660 io = msg_info.hdr.original_sc; 661 if (io == NULL) { 662 printf("%s: original_sc == NULL!\n", __func__); 663 /* XXX KDM do something here */ 664 break; 665 } 666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 668 /* 669 * Keep track of this, we need to send it back over 670 * when the datamove is complete. 671 */ 672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 673 674 if (msg_info.dt.sg_sequence == 0) { 675 /* 676 * XXX KDM we use the preallocated S/G list 677 * here, but we'll need to change this to 678 * dynamic allocation if we need larger S/G 679 * lists. 680 */ 681 if (msg_info.dt.kern_sg_entries > 682 sizeof(io->io_hdr.remote_sglist) / 683 sizeof(io->io_hdr.remote_sglist[0])) { 684 printf("%s: number of S/G entries " 685 "needed %u > allocated num %zd\n", 686 __func__, 687 msg_info.dt.kern_sg_entries, 688 sizeof(io->io_hdr.remote_sglist)/ 689 sizeof(io->io_hdr.remote_sglist[0])); 690 691 /* 692 * XXX KDM send a message back to 693 * the other side to shut down the 694 * DMA. The error will come back 695 * through via the normal channel. 696 */ 697 break; 698 } 699 sgl = io->io_hdr.remote_sglist; 700 memset(sgl, 0, 701 sizeof(io->io_hdr.remote_sglist)); 702 703 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 704 705 io->scsiio.kern_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.rem_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.kern_data_len = 710 msg_info.dt.kern_data_len; 711 io->scsiio.kern_total_len = 712 msg_info.dt.kern_total_len; 713 io->scsiio.kern_data_resid = 714 msg_info.dt.kern_data_resid; 715 io->scsiio.kern_rel_offset = 716 msg_info.dt.kern_rel_offset; 717 /* 718 * Clear out per-DMA flags. 719 */ 720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 721 /* 722 * Add per-DMA flags that are set for this 723 * particular DMA request. 724 */ 725 io->io_hdr.flags |= msg_info.dt.flags & 726 CTL_FLAG_RDMA_MASK; 727 } else 728 sgl = (struct ctl_sg_entry *) 729 io->scsiio.kern_data_ptr; 730 731 for (i = msg_info.dt.sent_sg_entries, j = 0; 732 i < (msg_info.dt.sent_sg_entries + 733 msg_info.dt.cur_sg_entries); i++, j++) { 734 sgl[i].addr = msg_info.dt.sg_list[j].addr; 735 sgl[i].len = msg_info.dt.sg_list[j].len; 736 737#if 0 738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 739 __func__, 740 msg_info.dt.sg_list[j].addr, 741 msg_info.dt.sg_list[j].len, 742 sgl[i].addr, sgl[i].len, j, i); 743#endif 744 } 745#if 0 746 memcpy(&sgl[msg_info.dt.sent_sg_entries], 747 msg_info.dt.sg_list, 748 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 749#endif 750 751 /* 752 * If this is the last piece of the I/O, we've got 753 * the full S/G list. Queue processing in the thread. 754 * Otherwise wait for the next piece. 755 */ 756 if (msg_info.dt.sg_last != 0) 757 ctl_enqueue_isc(io); 758 break; 759 } 760 /* Performed on the Serializing (primary) SC, XFER mode only */ 761 case CTL_MSG_DATAMOVE_DONE: { 762 if (msg_info.hdr.serializing_sc == NULL) { 763 printf("%s: serializing_sc == NULL!\n", 764 __func__); 765 /* XXX KDM now what? */ 766 break; 767 } 768 /* 769 * We grab the sense information here in case 770 * there was a failure, so we can return status 771 * back to the initiator. 772 */ 773 io = msg_info.hdr.serializing_sc; 774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 775 io->io_hdr.status = msg_info.hdr.status; 776 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 777 io->scsiio.sense_len = msg_info.scsi.sense_len; 778 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 779 io->io_hdr.port_status = msg_info.scsi.fetd_status; 780 io->scsiio.residual = msg_info.scsi.residual; 781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 782 sizeof(io->scsiio.sense_data)); 783 ctl_enqueue_isc(io); 784 break; 785 } 786 787 /* Preformed on Originating SC, SER_ONLY mode */ 788 case CTL_MSG_R2R: 789 io = msg_info.hdr.original_sc; 790 if (io == NULL) { 791 printf("%s: Major Bummer\n", __func__); 792 return; 793 } else { 794#if 0 795 printf("pOrig %x\n",(int) ctsio); 796#endif 797 } 798 io->io_hdr.msg_type = CTL_MSG_R2R; 799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 800 ctl_enqueue_isc(io); 801 break; 802 803 /* 804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 805 * mode. 806 * Performed on the Originating (i.e. secondary) SC in XFER 807 * mode 808 */ 809 case CTL_MSG_FINISH_IO: 810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 811 ctl_isc_handler_finish_xfer(ctl_softc, 812 &msg_info); 813 else 814 ctl_isc_handler_finish_ser_only(ctl_softc, 815 &msg_info); 816 break; 817 818 /* Preformed on Originating SC */ 819 case CTL_MSG_BAD_JUJU: 820 io = msg_info.hdr.original_sc; 821 if (io == NULL) { 822 printf("%s: Bad JUJU!, original_sc is NULL!\n", 823 __func__); 824 break; 825 } 826 ctl_copy_sense_data(&msg_info, io); 827 /* 828 * IO should have already been cleaned up on other 829 * SC so clear this flag so we won't send a message 830 * back to finish the IO there. 831 */ 832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 834 835 /* io = msg_info.hdr.serializing_sc; */ 836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 837 ctl_enqueue_isc(io); 838 break; 839 840 /* Handle resets sent from the other side */ 841 case CTL_MSG_MANAGE_TASKS: { 842 struct ctl_taskio *taskio; 843 taskio = (struct ctl_taskio *)ctl_alloc_io( 844 (void *)ctl_softc->othersc_pool); 845 if (taskio == NULL) { 846 printf("ctl_isc_event_handler: can't allocate " 847 "ctl_io!\n"); 848 /* Bad Juju */ 849 /* should I just call the proper reset func 850 here??? */ 851 goto bailout; 852 } 853 ctl_zero_io((union ctl_io *)taskio); 854 taskio->io_hdr.io_type = CTL_IO_TASK; 855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 856 taskio->io_hdr.nexus = msg_info.hdr.nexus; 857 taskio->task_action = msg_info.task.task_action; 858 taskio->tag_num = msg_info.task.tag_num; 859 taskio->tag_type = msg_info.task.tag_type; 860#ifdef CTL_TIME_IO 861 taskio->io_hdr.start_time = time_uptime; 862 getbintime(&taskio->io_hdr.start_bt); 863#if 0 864 cs_prof_gettime(&taskio->io_hdr.start_ticks); 865#endif 866#endif /* CTL_TIME_IO */ 867 ctl_run_task((union ctl_io *)taskio); 868 break; 869 } 870 /* Persistent Reserve action which needs attention */ 871 case CTL_MSG_PERS_ACTION: 872 presio = (struct ctl_prio *)ctl_alloc_io( 873 (void *)ctl_softc->othersc_pool); 874 if (presio == NULL) { 875 printf("ctl_isc_event_handler: can't allocate " 876 "ctl_io!\n"); 877 /* Bad Juju */ 878 /* Need to set busy and send msg back */ 879 goto bailout; 880 } 881 ctl_zero_io((union ctl_io *)presio); 882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 883 presio->pr_msg = msg_info.pr; 884 ctl_enqueue_isc((union ctl_io *)presio); 885 break; 886 case CTL_MSG_SYNC_FE: 887 rcv_sync_msg = 1; 888 break; 889 case CTL_MSG_APS_LOCK: { 890 // It's quicker to execute this then to 891 // queue it. 892 struct ctl_lun *lun; 893 struct ctl_page_index *page_index; 894 struct copan_aps_subpage *current_sp; 895 uint32_t targ_lun; 896 897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 898 lun = ctl_softc->ctl_luns[targ_lun]; 899 mtx_lock(&lun->lun_lock); 900 page_index = &lun->mode_pages.index[index_to_aps_page]; 901 current_sp = (struct copan_aps_subpage *) 902 (page_index->page_data + 903 (page_index->page_len * CTL_PAGE_CURRENT)); 904 905 current_sp->lock_active = msg_info.aps.lock_flag; 906 mtx_unlock(&lun->lun_lock); 907 break; 908 } 909 default: 910 printf("How did I get here?\n"); 911 } 912 } else if (event == CTL_HA_EVT_MSG_SENT) { 913 if (param != CTL_HA_STATUS_SUCCESS) { 914 printf("Bad status from ctl_ha_msg_send status %d\n", 915 param); 916 } 917 return; 918 } else if (event == CTL_HA_EVT_DISCONNECT) { 919 printf("CTL: Got a disconnect from Isc\n"); 920 return; 921 } else { 922 printf("ctl_isc_event_handler: Unknown event %d\n", event); 923 return; 924 } 925 926bailout: 927 return; 928} 929 930static void 931ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 932{ 933 struct scsi_sense_data *sense; 934 935 sense = &dest->scsiio.sense_data; 936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 937 dest->scsiio.scsi_status = src->scsi.scsi_status; 938 dest->scsiio.sense_len = src->scsi.sense_len; 939 dest->io_hdr.status = src->hdr.status; 940} 941 942static int 943ctl_init(void) 944{ 945 struct ctl_softc *softc; 946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 947 struct ctl_port *port; 948 uint8_t sc_id =0; 949 int i, error, retval; 950 //int isc_retval; 951 952 retval = 0; 953 ctl_pause_rtr = 0; 954 rcv_sync_msg = 0; 955 956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 957 M_WAITOK | M_ZERO); 958 softc = control_softc; 959 960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 961 "cam/ctl"); 962 963 softc->dev->si_drv1 = softc; 964 965 /* 966 * By default, return a "bad LUN" peripheral qualifier for unknown 967 * LUNs. The user can override this default using the tunable or 968 * sysctl. See the comment in ctl_inquiry_std() for more details. 969 */ 970 softc->inquiry_pq_no_lun = 1; 971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 972 &softc->inquiry_pq_no_lun); 973 sysctl_ctx_init(&softc->sysctl_ctx); 974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 976 CTLFLAG_RD, 0, "CAM Target Layer"); 977 978 if (softc->sysctl_tree == NULL) { 979 printf("%s: unable to allocate sysctl tree\n", __func__); 980 destroy_dev(softc->dev); 981 free(control_softc, M_DEVBUF); 982 control_softc = NULL; 983 return (ENOMEM); 984 } 985 986 SYSCTL_ADD_INT(&softc->sysctl_ctx, 987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 988 "inquiry_pq_no_lun", CTLFLAG_RW, 989 &softc->inquiry_pq_no_lun, 0, 990 "Report no lun possible for invalid LUNs"); 991 992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 994 softc->open_count = 0; 995 996 /* 997 * Default to actually sending a SYNCHRONIZE CACHE command down to 998 * the drive. 999 */ 1000 softc->flags = CTL_FLAG_REAL_SYNC; 1001 1002 /* 1003 * In Copan's HA scheme, the "master" and "slave" roles are 1004 * figured out through the slot the controller is in. Although it 1005 * is an active/active system, someone has to be in charge. 1006 */ 1007#ifdef NEEDTOPORT 1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1009#endif 1010 1011 if (sc_id == 0) { 1012 softc->flags |= CTL_FLAG_MASTER_SHELF; 1013 persis_offset = 0; 1014 } else 1015 persis_offset = CTL_MAX_INITIATORS; 1016 1017 /* 1018 * XXX KDM need to figure out where we want to get our target ID 1019 * and WWID. Is it different on each port? 1020 */ 1021 softc->target.id = 0; 1022 softc->target.wwid[0] = 0x12345678; 1023 softc->target.wwid[1] = 0x87654321; 1024 STAILQ_INIT(&softc->lun_list); 1025 STAILQ_INIT(&softc->pending_lun_queue); 1026 STAILQ_INIT(&softc->fe_list); 1027 STAILQ_INIT(&softc->port_list); 1028 STAILQ_INIT(&softc->be_list); 1029 STAILQ_INIT(&softc->io_pools); 1030 ctl_tpc_init(softc); 1031 1032 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1033 &internal_pool)!= 0){ 1034 printf("ctl: can't allocate %d entry internal pool, " 1035 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1036 return (ENOMEM); 1037 } 1038 1039 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1040 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1041 printf("ctl: can't allocate %d entry emergency pool, " 1042 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1043 ctl_pool_free(internal_pool); 1044 return (ENOMEM); 1045 } 1046 1047 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1048 &other_pool) != 0) 1049 { 1050 printf("ctl: can't allocate %d entry other SC pool, " 1051 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1052 ctl_pool_free(internal_pool); 1053 ctl_pool_free(emergency_pool); 1054 return (ENOMEM); 1055 } 1056 1057 softc->internal_pool = internal_pool; 1058 softc->emergency_pool = emergency_pool; 1059 softc->othersc_pool = other_pool; 1060 1061 if (worker_threads <= 0) 1062 worker_threads = max(1, mp_ncpus / 4); 1063 if (worker_threads > CTL_MAX_THREADS) 1064 worker_threads = CTL_MAX_THREADS; 1065 1066 for (i = 0; i < worker_threads; i++) { 1067 struct ctl_thread *thr = &softc->threads[i]; 1068 1069 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1070 thr->ctl_softc = softc; 1071 STAILQ_INIT(&thr->incoming_queue); 1072 STAILQ_INIT(&thr->rtr_queue); 1073 STAILQ_INIT(&thr->done_queue); 1074 STAILQ_INIT(&thr->isc_queue); 1075 1076 error = kproc_kthread_add(ctl_work_thread, thr, 1077 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1078 if (error != 0) { 1079 printf("error creating CTL work thread!\n"); 1080 ctl_pool_free(internal_pool); 1081 ctl_pool_free(emergency_pool); 1082 ctl_pool_free(other_pool); 1083 return (error); 1084 } 1085 } 1086 error = kproc_kthread_add(ctl_lun_thread, softc, 1087 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1088 if (error != 0) { 1089 printf("error creating CTL lun thread!\n"); 1090 ctl_pool_free(internal_pool); 1091 ctl_pool_free(emergency_pool); 1092 ctl_pool_free(other_pool); 1093 return (error); 1094 } 1095 if (bootverbose) 1096 printf("ctl: CAM Target Layer loaded\n"); 1097 1098 /* 1099 * Initialize the ioctl front end. 1100 */ 1101 ctl_frontend_register(&ioctl_frontend); 1102 port = &softc->ioctl_info.port; 1103 port->frontend = &ioctl_frontend; 1104 sprintf(softc->ioctl_info.port_name, "ioctl"); 1105 port->port_type = CTL_PORT_IOCTL; 1106 port->num_requested_ctl_io = 100; 1107 port->port_name = softc->ioctl_info.port_name; 1108 port->port_online = ctl_ioctl_online; 1109 port->port_offline = ctl_ioctl_offline; 1110 port->onoff_arg = &softc->ioctl_info; 1111 port->lun_enable = ctl_ioctl_lun_enable; 1112 port->lun_disable = ctl_ioctl_lun_disable; 1113 port->targ_lun_arg = &softc->ioctl_info; 1114 port->fe_datamove = ctl_ioctl_datamove; 1115 port->fe_done = ctl_ioctl_done; 1116 port->max_targets = 15; 1117 port->max_target_id = 15; 1118 1119 if (ctl_port_register(&softc->ioctl_info.port, 1120 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1121 printf("ctl: ioctl front end registration failed, will " 1122 "continue anyway\n"); 1123 } 1124 1125#ifdef CTL_IO_DELAY 1126 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1127 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1128 sizeof(struct callout), CTL_TIMER_BYTES); 1129 return (EINVAL); 1130 } 1131#endif /* CTL_IO_DELAY */ 1132 1133 return (0); 1134} 1135 1136void 1137ctl_shutdown(void) 1138{ 1139 struct ctl_softc *softc; 1140 struct ctl_lun *lun, *next_lun; 1141 struct ctl_io_pool *pool; 1142 1143 softc = (struct ctl_softc *)control_softc; 1144 1145 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1146 printf("ctl: ioctl front end deregistration failed\n"); 1147 1148 mtx_lock(&softc->ctl_lock); 1149 1150 /* 1151 * Free up each LUN. 1152 */ 1153 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1154 next_lun = STAILQ_NEXT(lun, links); 1155 ctl_free_lun(lun); 1156 } 1157 1158 mtx_unlock(&softc->ctl_lock); 1159 1160 ctl_frontend_deregister(&ioctl_frontend); 1161 1162 /* 1163 * This will rip the rug out from under any FETDs or anyone else 1164 * that has a pool allocated. Since we increment our module 1165 * refcount any time someone outside the main CTL module allocates 1166 * a pool, we shouldn't have any problems here. The user won't be 1167 * able to unload the CTL module until client modules have 1168 * successfully unloaded. 1169 */ 1170 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1171 ctl_pool_free(pool); 1172 1173#if 0 1174 ctl_shutdown_thread(softc->work_thread); 1175 mtx_destroy(&softc->queue_lock); 1176#endif 1177 1178 ctl_tpc_shutdown(softc); 1179 mtx_destroy(&softc->pool_lock); 1180 mtx_destroy(&softc->ctl_lock); 1181 1182 destroy_dev(softc->dev); 1183 1184 sysctl_ctx_free(&softc->sysctl_ctx); 1185 1186 free(control_softc, M_DEVBUF); 1187 control_softc = NULL; 1188 1189 if (bootverbose) 1190 printf("ctl: CAM Target Layer unloaded\n"); 1191} 1192 1193static int 1194ctl_module_event_handler(module_t mod, int what, void *arg) 1195{ 1196 1197 switch (what) { 1198 case MOD_LOAD: 1199 return (ctl_init()); 1200 case MOD_UNLOAD: 1201 return (EBUSY); 1202 default: 1203 return (EOPNOTSUPP); 1204 } 1205} 1206 1207/* 1208 * XXX KDM should we do some access checks here? Bump a reference count to 1209 * prevent a CTL module from being unloaded while someone has it open? 1210 */ 1211static int 1212ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1213{ 1214 return (0); 1215} 1216 1217static int 1218ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1219{ 1220 return (0); 1221} 1222 1223int 1224ctl_port_enable(ctl_port_type port_type) 1225{ 1226 struct ctl_softc *softc; 1227 struct ctl_port *port; 1228 1229 if (ctl_is_single == 0) { 1230 union ctl_ha_msg msg_info; 1231 int isc_retval; 1232 1233#if 0 1234 printf("%s: HA mode, synchronizing frontend enable\n", 1235 __func__); 1236#endif 1237 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1238 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1239 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1240 printf("Sync msg send error retval %d\n", isc_retval); 1241 } 1242 if (!rcv_sync_msg) { 1243 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1244 sizeof(msg_info), 1); 1245 } 1246#if 0 1247 printf("CTL:Frontend Enable\n"); 1248 } else { 1249 printf("%s: single mode, skipping frontend synchronization\n", 1250 __func__); 1251#endif 1252 } 1253 1254 softc = control_softc; 1255 1256 STAILQ_FOREACH(port, &softc->port_list, links) { 1257 if (port_type & port->port_type) 1258 { 1259#if 0 1260 printf("port %d\n", port->targ_port); 1261#endif 1262 ctl_port_online(port); 1263 } 1264 } 1265 1266 return (0); 1267} 1268 1269int 1270ctl_port_disable(ctl_port_type port_type) 1271{ 1272 struct ctl_softc *softc; 1273 struct ctl_port *port; 1274 1275 softc = control_softc; 1276 1277 STAILQ_FOREACH(port, &softc->port_list, links) { 1278 if (port_type & port->port_type) 1279 ctl_port_offline(port); 1280 } 1281 1282 return (0); 1283} 1284 1285/* 1286 * Returns 0 for success, 1 for failure. 1287 * Currently the only failure mode is if there aren't enough entries 1288 * allocated. So, in case of a failure, look at num_entries_dropped, 1289 * reallocate and try again. 1290 */ 1291int 1292ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1293 int *num_entries_filled, int *num_entries_dropped, 1294 ctl_port_type port_type, int no_virtual) 1295{ 1296 struct ctl_softc *softc; 1297 struct ctl_port *port; 1298 int entries_dropped, entries_filled; 1299 int retval; 1300 int i; 1301 1302 softc = control_softc; 1303 1304 retval = 0; 1305 entries_filled = 0; 1306 entries_dropped = 0; 1307 1308 i = 0; 1309 mtx_lock(&softc->ctl_lock); 1310 STAILQ_FOREACH(port, &softc->port_list, links) { 1311 struct ctl_port_entry *entry; 1312 1313 if ((port->port_type & port_type) == 0) 1314 continue; 1315 1316 if ((no_virtual != 0) 1317 && (port->virtual_port != 0)) 1318 continue; 1319 1320 if (entries_filled >= num_entries_alloced) { 1321 entries_dropped++; 1322 continue; 1323 } 1324 entry = &entries[i]; 1325 1326 entry->port_type = port->port_type; 1327 strlcpy(entry->port_name, port->port_name, 1328 sizeof(entry->port_name)); 1329 entry->physical_port = port->physical_port; 1330 entry->virtual_port = port->virtual_port; 1331 entry->wwnn = port->wwnn; 1332 entry->wwpn = port->wwpn; 1333 1334 i++; 1335 entries_filled++; 1336 } 1337 1338 mtx_unlock(&softc->ctl_lock); 1339 1340 if (entries_dropped > 0) 1341 retval = 1; 1342 1343 *num_entries_dropped = entries_dropped; 1344 *num_entries_filled = entries_filled; 1345 1346 return (retval); 1347} 1348 1349static void 1350ctl_ioctl_online(void *arg) 1351{ 1352 struct ctl_ioctl_info *ioctl_info; 1353 1354 ioctl_info = (struct ctl_ioctl_info *)arg; 1355 1356 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1357} 1358 1359static void 1360ctl_ioctl_offline(void *arg) 1361{ 1362 struct ctl_ioctl_info *ioctl_info; 1363 1364 ioctl_info = (struct ctl_ioctl_info *)arg; 1365 1366 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1367} 1368 1369/* 1370 * Remove an initiator by port number and initiator ID. 1371 * Returns 0 for success, -1 for failure. 1372 */ 1373int 1374ctl_remove_initiator(struct ctl_port *port, int iid) 1375{ 1376 struct ctl_softc *softc = control_softc; 1377 1378 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1379 1380 if (iid > CTL_MAX_INIT_PER_PORT) { 1381 printf("%s: initiator ID %u > maximun %u!\n", 1382 __func__, iid, CTL_MAX_INIT_PER_PORT); 1383 return (-1); 1384 } 1385 1386 mtx_lock(&softc->ctl_lock); 1387 port->wwpn_iid[iid].in_use--; 1388 port->wwpn_iid[iid].last_use = time_uptime; 1389 mtx_unlock(&softc->ctl_lock); 1390 1391 return (0); 1392} 1393 1394/* 1395 * Add an initiator to the initiator map. 1396 * Returns iid for success, < 0 for failure. 1397 */ 1398int 1399ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1400{ 1401 struct ctl_softc *softc = control_softc; 1402 time_t best_time; 1403 int i, best; 1404 1405 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1406 1407 if (iid >= CTL_MAX_INIT_PER_PORT) { 1408 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1409 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1410 free(name, M_CTL); 1411 return (-1); 1412 } 1413 1414 mtx_lock(&softc->ctl_lock); 1415 1416 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1417 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1418 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1419 iid = i; 1420 break; 1421 } 1422 if (name != NULL && port->wwpn_iid[i].name != NULL && 1423 strcmp(name, port->wwpn_iid[i].name) == 0) { 1424 iid = i; 1425 break; 1426 } 1427 } 1428 } 1429 1430 if (iid < 0) { 1431 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1432 if (port->wwpn_iid[i].in_use == 0 && 1433 port->wwpn_iid[i].wwpn == 0 && 1434 port->wwpn_iid[i].name == NULL) { 1435 iid = i; 1436 break; 1437 } 1438 } 1439 } 1440 1441 if (iid < 0) { 1442 best = -1; 1443 best_time = INT32_MAX; 1444 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1445 if (port->wwpn_iid[i].in_use == 0) { 1446 if (port->wwpn_iid[i].last_use < best_time) { 1447 best = i; 1448 best_time = port->wwpn_iid[i].last_use; 1449 } 1450 } 1451 } 1452 iid = best; 1453 } 1454 1455 if (iid < 0) { 1456 mtx_unlock(&softc->ctl_lock); 1457 free(name, M_CTL); 1458 return (-2); 1459 } 1460 1461 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1462 /* 1463 * This is not an error yet. 1464 */ 1465 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1466#if 0 1467 printf("%s: port %d iid %u WWPN %#jx arrived" 1468 " again\n", __func__, port->targ_port, 1469 iid, (uintmax_t)wwpn); 1470#endif 1471 goto take; 1472 } 1473 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1474 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1475#if 0 1476 printf("%s: port %d iid %u name '%s' arrived" 1477 " again\n", __func__, port->targ_port, 1478 iid, name); 1479#endif 1480 goto take; 1481 } 1482 1483 /* 1484 * This is an error, but what do we do about it? The 1485 * driver is telling us we have a new WWPN for this 1486 * initiator ID, so we pretty much need to use it. 1487 */ 1488 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1489 " but WWPN %#jx '%s' is still at that address\n", 1490 __func__, port->targ_port, iid, wwpn, name, 1491 (uintmax_t)port->wwpn_iid[iid].wwpn, 1492 port->wwpn_iid[iid].name); 1493 1494 /* 1495 * XXX KDM clear have_ca and ua_pending on each LUN for 1496 * this initiator. 1497 */ 1498 } 1499take: 1500 free(port->wwpn_iid[iid].name, M_CTL); 1501 port->wwpn_iid[iid].name = name; 1502 port->wwpn_iid[iid].wwpn = wwpn; 1503 port->wwpn_iid[iid].in_use++; 1504 mtx_unlock(&softc->ctl_lock); 1505 1506 return (iid); 1507} 1508 1509static int 1510ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1511{ 1512 int len; 1513 1514 switch (port->port_type) { 1515 case CTL_PORT_FC: 1516 { 1517 struct scsi_transportid_fcp *id = 1518 (struct scsi_transportid_fcp *)buf; 1519 if (port->wwpn_iid[iid].wwpn == 0) 1520 return (0); 1521 memset(id, 0, sizeof(*id)); 1522 id->format_protocol = SCSI_PROTO_FC; 1523 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1524 return (sizeof(*id)); 1525 } 1526 case CTL_PORT_ISCSI: 1527 { 1528 struct scsi_transportid_iscsi_port *id = 1529 (struct scsi_transportid_iscsi_port *)buf; 1530 if (port->wwpn_iid[iid].name == NULL) 1531 return (0); 1532 memset(id, 0, 256); 1533 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1534 SCSI_PROTO_ISCSI; 1535 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1536 len = roundup2(min(len, 252), 4); 1537 scsi_ulto2b(len, id->additional_length); 1538 return (sizeof(*id) + len); 1539 } 1540 case CTL_PORT_SAS: 1541 { 1542 struct scsi_transportid_sas *id = 1543 (struct scsi_transportid_sas *)buf; 1544 if (port->wwpn_iid[iid].wwpn == 0) 1545 return (0); 1546 memset(id, 0, sizeof(*id)); 1547 id->format_protocol = SCSI_PROTO_SAS; 1548 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1549 return (sizeof(*id)); 1550 } 1551 default: 1552 { 1553 struct scsi_transportid_spi *id = 1554 (struct scsi_transportid_spi *)buf; 1555 memset(id, 0, sizeof(*id)); 1556 id->format_protocol = SCSI_PROTO_SPI; 1557 scsi_ulto2b(iid, id->scsi_addr); 1558 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1559 return (sizeof(*id)); 1560 } 1561 } 1562} 1563 1564static int 1565ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1566{ 1567 return (0); 1568} 1569 1570static int 1571ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1572{ 1573 return (0); 1574} 1575 1576/* 1577 * Data movement routine for the CTL ioctl frontend port. 1578 */ 1579static int 1580ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1581{ 1582 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1583 struct ctl_sg_entry ext_entry, kern_entry; 1584 int ext_sglen, ext_sg_entries, kern_sg_entries; 1585 int ext_sg_start, ext_offset; 1586 int len_to_copy, len_copied; 1587 int kern_watermark, ext_watermark; 1588 int ext_sglist_malloced; 1589 int i, j; 1590 1591 ext_sglist_malloced = 0; 1592 ext_sg_start = 0; 1593 ext_offset = 0; 1594 1595 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1596 1597 /* 1598 * If this flag is set, fake the data transfer. 1599 */ 1600 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1601 ctsio->ext_data_filled = ctsio->ext_data_len; 1602 goto bailout; 1603 } 1604 1605 /* 1606 * To simplify things here, if we have a single buffer, stick it in 1607 * a S/G entry and just make it a single entry S/G list. 1608 */ 1609 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1610 int len_seen; 1611 1612 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1613 1614 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1615 M_WAITOK); 1616 ext_sglist_malloced = 1; 1617 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1618 ext_sglen) != 0) { 1619 ctl_set_internal_failure(ctsio, 1620 /*sks_valid*/ 0, 1621 /*retry_count*/ 0); 1622 goto bailout; 1623 } 1624 ext_sg_entries = ctsio->ext_sg_entries; 1625 len_seen = 0; 1626 for (i = 0; i < ext_sg_entries; i++) { 1627 if ((len_seen + ext_sglist[i].len) >= 1628 ctsio->ext_data_filled) { 1629 ext_sg_start = i; 1630 ext_offset = ctsio->ext_data_filled - len_seen; 1631 break; 1632 } 1633 len_seen += ext_sglist[i].len; 1634 } 1635 } else { 1636 ext_sglist = &ext_entry; 1637 ext_sglist->addr = ctsio->ext_data_ptr; 1638 ext_sglist->len = ctsio->ext_data_len; 1639 ext_sg_entries = 1; 1640 ext_sg_start = 0; 1641 ext_offset = ctsio->ext_data_filled; 1642 } 1643 1644 if (ctsio->kern_sg_entries > 0) { 1645 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1646 kern_sg_entries = ctsio->kern_sg_entries; 1647 } else { 1648 kern_sglist = &kern_entry; 1649 kern_sglist->addr = ctsio->kern_data_ptr; 1650 kern_sglist->len = ctsio->kern_data_len; 1651 kern_sg_entries = 1; 1652 } 1653 1654 1655 kern_watermark = 0; 1656 ext_watermark = ext_offset; 1657 len_copied = 0; 1658 for (i = ext_sg_start, j = 0; 1659 i < ext_sg_entries && j < kern_sg_entries;) { 1660 uint8_t *ext_ptr, *kern_ptr; 1661 1662 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1663 kern_sglist[j].len - kern_watermark); 1664 1665 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1666 ext_ptr = ext_ptr + ext_watermark; 1667 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1668 /* 1669 * XXX KDM fix this! 1670 */ 1671 panic("need to implement bus address support"); 1672#if 0 1673 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1674#endif 1675 } else 1676 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1677 kern_ptr = kern_ptr + kern_watermark; 1678 1679 kern_watermark += len_to_copy; 1680 ext_watermark += len_to_copy; 1681 1682 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1683 CTL_FLAG_DATA_IN) { 1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1685 "bytes to user\n", len_to_copy)); 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1687 "to %p\n", kern_ptr, ext_ptr)); 1688 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1689 ctl_set_internal_failure(ctsio, 1690 /*sks_valid*/ 0, 1691 /*retry_count*/ 0); 1692 goto bailout; 1693 } 1694 } else { 1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1696 "bytes from user\n", len_to_copy)); 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1698 "to %p\n", ext_ptr, kern_ptr)); 1699 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1700 ctl_set_internal_failure(ctsio, 1701 /*sks_valid*/ 0, 1702 /*retry_count*/0); 1703 goto bailout; 1704 } 1705 } 1706 1707 len_copied += len_to_copy; 1708 1709 if (ext_sglist[i].len == ext_watermark) { 1710 i++; 1711 ext_watermark = 0; 1712 } 1713 1714 if (kern_sglist[j].len == kern_watermark) { 1715 j++; 1716 kern_watermark = 0; 1717 } 1718 } 1719 1720 ctsio->ext_data_filled += len_copied; 1721 1722 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1723 "kern_sg_entries: %d\n", ext_sg_entries, 1724 kern_sg_entries)); 1725 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1726 "kern_data_len = %d\n", ctsio->ext_data_len, 1727 ctsio->kern_data_len)); 1728 1729 1730 /* XXX KDM set residual?? */ 1731bailout: 1732 1733 if (ext_sglist_malloced != 0) 1734 free(ext_sglist, M_CTL); 1735 1736 return (CTL_RETVAL_COMPLETE); 1737} 1738 1739/* 1740 * Serialize a command that went down the "wrong" side, and so was sent to 1741 * this controller for execution. The logic is a little different than the 1742 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1743 * sent back to the other side, but in the success case, we execute the 1744 * command on this side (XFER mode) or tell the other side to execute it 1745 * (SER_ONLY mode). 1746 */ 1747static int 1748ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1749{ 1750 struct ctl_softc *ctl_softc; 1751 union ctl_ha_msg msg_info; 1752 struct ctl_lun *lun; 1753 int retval = 0; 1754 uint32_t targ_lun; 1755 1756 ctl_softc = control_softc; 1757 1758 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1759 lun = ctl_softc->ctl_luns[targ_lun]; 1760 if (lun==NULL) 1761 { 1762 /* 1763 * Why isn't LUN defined? The other side wouldn't 1764 * send a cmd if the LUN is undefined. 1765 */ 1766 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1767 1768 /* "Logical unit not supported" */ 1769 ctl_set_sense_data(&msg_info.scsi.sense_data, 1770 lun, 1771 /*sense_format*/SSD_TYPE_NONE, 1772 /*current_error*/ 1, 1773 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1774 /*asc*/ 0x25, 1775 /*ascq*/ 0x00, 1776 SSD_ELEM_NONE); 1777 1778 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1779 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1780 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1781 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1782 msg_info.hdr.serializing_sc = NULL; 1783 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1784 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1785 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1786 } 1787 return(1); 1788 1789 } 1790 1791 mtx_lock(&lun->lun_lock); 1792 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1793 1794 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1795 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1796 ooa_links))) { 1797 case CTL_ACTION_BLOCK: 1798 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1799 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1800 blocked_links); 1801 break; 1802 case CTL_ACTION_PASS: 1803 case CTL_ACTION_SKIP: 1804 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1805 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1806 ctl_enqueue_rtr((union ctl_io *)ctsio); 1807 } else { 1808 1809 /* send msg back to other side */ 1810 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1811 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1812 msg_info.hdr.msg_type = CTL_MSG_R2R; 1813#if 0 1814 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1815#endif 1816 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1817 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1818 } 1819 } 1820 break; 1821 case CTL_ACTION_OVERLAP: 1822 /* OVERLAPPED COMMANDS ATTEMPTED */ 1823 ctl_set_sense_data(&msg_info.scsi.sense_data, 1824 lun, 1825 /*sense_format*/SSD_TYPE_NONE, 1826 /*current_error*/ 1, 1827 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1828 /*asc*/ 0x4E, 1829 /*ascq*/ 0x00, 1830 SSD_ELEM_NONE); 1831 1832 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1833 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1834 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1835 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1836 msg_info.hdr.serializing_sc = NULL; 1837 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1838#if 0 1839 printf("BAD JUJU:Major Bummer Overlap\n"); 1840#endif 1841 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1842 retval = 1; 1843 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1844 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1845 } 1846 break; 1847 case CTL_ACTION_OVERLAP_TAG: 1848 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1849 ctl_set_sense_data(&msg_info.scsi.sense_data, 1850 lun, 1851 /*sense_format*/SSD_TYPE_NONE, 1852 /*current_error*/ 1, 1853 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1854 /*asc*/ 0x4D, 1855 /*ascq*/ ctsio->tag_num & 0xff, 1856 SSD_ELEM_NONE); 1857 1858 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1859 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1860 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864#if 0 1865 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1866#endif 1867 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1868 retval = 1; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 break; 1873 case CTL_ACTION_ERROR: 1874 default: 1875 /* "Internal target failure" */ 1876 ctl_set_sense_data(&msg_info.scsi.sense_data, 1877 lun, 1878 /*sense_format*/SSD_TYPE_NONE, 1879 /*current_error*/ 1, 1880 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1881 /*asc*/ 0x44, 1882 /*ascq*/ 0x00, 1883 SSD_ELEM_NONE); 1884 1885 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1886 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1887 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1888 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1889 msg_info.hdr.serializing_sc = NULL; 1890 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1891#if 0 1892 printf("BAD JUJU:Major Bummer HW Error\n"); 1893#endif 1894 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1895 retval = 1; 1896 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1897 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1898 } 1899 break; 1900 } 1901 mtx_unlock(&lun->lun_lock); 1902 return (retval); 1903} 1904 1905static int 1906ctl_ioctl_submit_wait(union ctl_io *io) 1907{ 1908 struct ctl_fe_ioctl_params params; 1909 ctl_fe_ioctl_state last_state; 1910 int done, retval; 1911 1912 retval = 0; 1913 1914 bzero(¶ms, sizeof(params)); 1915 1916 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1917 cv_init(¶ms.sem, "ctlioccv"); 1918 params.state = CTL_IOCTL_INPROG; 1919 last_state = params.state; 1920 1921 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1922 1923 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1924 1925 /* This shouldn't happen */ 1926 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1927 return (retval); 1928 1929 done = 0; 1930 1931 do { 1932 mtx_lock(¶ms.ioctl_mtx); 1933 /* 1934 * Check the state here, and don't sleep if the state has 1935 * already changed (i.e. wakeup has already occured, but we 1936 * weren't waiting yet). 1937 */ 1938 if (params.state == last_state) { 1939 /* XXX KDM cv_wait_sig instead? */ 1940 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1941 } 1942 last_state = params.state; 1943 1944 switch (params.state) { 1945 case CTL_IOCTL_INPROG: 1946 /* Why did we wake up? */ 1947 /* XXX KDM error here? */ 1948 mtx_unlock(¶ms.ioctl_mtx); 1949 break; 1950 case CTL_IOCTL_DATAMOVE: 1951 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1952 1953 /* 1954 * change last_state back to INPROG to avoid 1955 * deadlock on subsequent data moves. 1956 */ 1957 params.state = last_state = CTL_IOCTL_INPROG; 1958 1959 mtx_unlock(¶ms.ioctl_mtx); 1960 ctl_ioctl_do_datamove(&io->scsiio); 1961 /* 1962 * Note that in some cases, most notably writes, 1963 * this will queue the I/O and call us back later. 1964 * In other cases, generally reads, this routine 1965 * will immediately call back and wake us up, 1966 * probably using our own context. 1967 */ 1968 io->scsiio.be_move_done(io); 1969 break; 1970 case CTL_IOCTL_DONE: 1971 mtx_unlock(¶ms.ioctl_mtx); 1972 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1973 done = 1; 1974 break; 1975 default: 1976 mtx_unlock(¶ms.ioctl_mtx); 1977 /* XXX KDM error here? */ 1978 break; 1979 } 1980 } while (done == 0); 1981 1982 mtx_destroy(¶ms.ioctl_mtx); 1983 cv_destroy(¶ms.sem); 1984 1985 return (CTL_RETVAL_COMPLETE); 1986} 1987 1988static void 1989ctl_ioctl_datamove(union ctl_io *io) 1990{ 1991 struct ctl_fe_ioctl_params *params; 1992 1993 params = (struct ctl_fe_ioctl_params *) 1994 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1995 1996 mtx_lock(¶ms->ioctl_mtx); 1997 params->state = CTL_IOCTL_DATAMOVE; 1998 cv_broadcast(¶ms->sem); 1999 mtx_unlock(¶ms->ioctl_mtx); 2000} 2001 2002static void 2003ctl_ioctl_done(union ctl_io *io) 2004{ 2005 struct ctl_fe_ioctl_params *params; 2006 2007 params = (struct ctl_fe_ioctl_params *) 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2009 2010 mtx_lock(¶ms->ioctl_mtx); 2011 params->state = CTL_IOCTL_DONE; 2012 cv_broadcast(¶ms->sem); 2013 mtx_unlock(¶ms->ioctl_mtx); 2014} 2015 2016static void 2017ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2018{ 2019 struct ctl_fe_ioctl_startstop_info *sd_info; 2020 2021 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2022 2023 sd_info->hs_info.status = metatask->status; 2024 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2025 sd_info->hs_info.luns_complete = 2026 metatask->taskinfo.startstop.luns_complete; 2027 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2028 2029 cv_broadcast(&sd_info->sem); 2030} 2031 2032static void 2033ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2034{ 2035 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2036 2037 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2038 2039 mtx_lock(fe_bbr_info->lock); 2040 fe_bbr_info->bbr_info->status = metatask->status; 2041 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2042 fe_bbr_info->wakeup_done = 1; 2043 mtx_unlock(fe_bbr_info->lock); 2044 2045 cv_broadcast(&fe_bbr_info->sem); 2046} 2047 2048/* 2049 * Returns 0 for success, errno for failure. 2050 */ 2051static int 2052ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2053 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2054{ 2055 union ctl_io *io; 2056 int retval; 2057 2058 retval = 0; 2059 2060 mtx_lock(&lun->lun_lock); 2061 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2062 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2063 ooa_links)) { 2064 struct ctl_ooa_entry *entry; 2065 2066 /* 2067 * If we've got more than we can fit, just count the 2068 * remaining entries. 2069 */ 2070 if (*cur_fill_num >= ooa_hdr->alloc_num) 2071 continue; 2072 2073 entry = &kern_entries[*cur_fill_num]; 2074 2075 entry->tag_num = io->scsiio.tag_num; 2076 entry->lun_num = lun->lun; 2077#ifdef CTL_TIME_IO 2078 entry->start_bt = io->io_hdr.start_bt; 2079#endif 2080 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2081 entry->cdb_len = io->scsiio.cdb_len; 2082 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2090 2091 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2092 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2093 2094 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2095 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2096 } 2097 mtx_unlock(&lun->lun_lock); 2098 2099 return (retval); 2100} 2101 2102static void * 2103ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2104 size_t error_str_len) 2105{ 2106 void *kptr; 2107 2108 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2109 2110 if (copyin(user_addr, kptr, len) != 0) { 2111 snprintf(error_str, error_str_len, "Error copying %d bytes " 2112 "from user address %p to kernel address %p", len, 2113 user_addr, kptr); 2114 free(kptr, M_CTL); 2115 return (NULL); 2116 } 2117 2118 return (kptr); 2119} 2120 2121static void 2122ctl_free_args(int num_args, struct ctl_be_arg *args) 2123{ 2124 int i; 2125 2126 if (args == NULL) 2127 return; 2128 2129 for (i = 0; i < num_args; i++) { 2130 free(args[i].kname, M_CTL); 2131 free(args[i].kvalue, M_CTL); 2132 } 2133 2134 free(args, M_CTL); 2135} 2136 2137static struct ctl_be_arg * 2138ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2139 char *error_str, size_t error_str_len) 2140{ 2141 struct ctl_be_arg *args; 2142 int i; 2143 2144 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2145 error_str, error_str_len); 2146 2147 if (args == NULL) 2148 goto bailout; 2149 2150 for (i = 0; i < num_args; i++) { 2151 args[i].kname = NULL; 2152 args[i].kvalue = NULL; 2153 } 2154 2155 for (i = 0; i < num_args; i++) { 2156 uint8_t *tmpptr; 2157 2158 args[i].kname = ctl_copyin_alloc(args[i].name, 2159 args[i].namelen, error_str, error_str_len); 2160 if (args[i].kname == NULL) 2161 goto bailout; 2162 2163 if (args[i].kname[args[i].namelen - 1] != '\0') { 2164 snprintf(error_str, error_str_len, "Argument %d " 2165 "name is not NUL-terminated", i); 2166 goto bailout; 2167 } 2168 2169 if (args[i].flags & CTL_BEARG_RD) { 2170 tmpptr = ctl_copyin_alloc(args[i].value, 2171 args[i].vallen, error_str, error_str_len); 2172 if (tmpptr == NULL) 2173 goto bailout; 2174 if ((args[i].flags & CTL_BEARG_ASCII) 2175 && (tmpptr[args[i].vallen - 1] != '\0')) { 2176 snprintf(error_str, error_str_len, "Argument " 2177 "%d value is not NUL-terminated", i); 2178 goto bailout; 2179 } 2180 args[i].kvalue = tmpptr; 2181 } else { 2182 args[i].kvalue = malloc(args[i].vallen, 2183 M_CTL, M_WAITOK | M_ZERO); 2184 } 2185 } 2186 2187 return (args); 2188bailout: 2189 2190 ctl_free_args(num_args, args); 2191 2192 return (NULL); 2193} 2194 2195static void 2196ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2197{ 2198 int i; 2199 2200 for (i = 0; i < num_args; i++) { 2201 if (args[i].flags & CTL_BEARG_WR) 2202 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2203 } 2204} 2205 2206/* 2207 * Escape characters that are illegal or not recommended in XML. 2208 */ 2209int 2210ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2211{ 2212 int retval; 2213 2214 retval = 0; 2215 2216 for (; *str; str++) { 2217 switch (*str) { 2218 case '&': 2219 retval = sbuf_printf(sb, "&"); 2220 break; 2221 case '>': 2222 retval = sbuf_printf(sb, ">"); 2223 break; 2224 case '<': 2225 retval = sbuf_printf(sb, "<"); 2226 break; 2227 default: 2228 retval = sbuf_putc(sb, *str); 2229 break; 2230 } 2231 2232 if (retval != 0) 2233 break; 2234 2235 } 2236 2237 return (retval); 2238} 2239 2240static int 2241ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2242 struct thread *td) 2243{ 2244 struct ctl_softc *softc; 2245 int retval; 2246 2247 softc = control_softc; 2248 2249 retval = 0; 2250 2251 switch (cmd) { 2252 case CTL_IO: { 2253 union ctl_io *io; 2254 void *pool_tmp; 2255 2256 /* 2257 * If we haven't been "enabled", don't allow any SCSI I/O 2258 * to this FETD. 2259 */ 2260 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2261 retval = EPERM; 2262 break; 2263 } 2264 2265 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2266 if (io == NULL) { 2267 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2268 retval = ENOSPC; 2269 break; 2270 } 2271 2272 /* 2273 * Need to save the pool reference so it doesn't get 2274 * spammed by the user's ctl_io. 2275 */ 2276 pool_tmp = io->io_hdr.pool; 2277 2278 memcpy(io, (void *)addr, sizeof(*io)); 2279 2280 io->io_hdr.pool = pool_tmp; 2281 /* 2282 * No status yet, so make sure the status is set properly. 2283 */ 2284 io->io_hdr.status = CTL_STATUS_NONE; 2285 2286 /* 2287 * The user sets the initiator ID, target and LUN IDs. 2288 */ 2289 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2290 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2291 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2292 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2293 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2294 2295 retval = ctl_ioctl_submit_wait(io); 2296 2297 if (retval != 0) { 2298 ctl_free_io(io); 2299 break; 2300 } 2301 2302 memcpy((void *)addr, io, sizeof(*io)); 2303 2304 /* return this to our pool */ 2305 ctl_free_io(io); 2306 2307 break; 2308 } 2309 case CTL_ENABLE_PORT: 2310 case CTL_DISABLE_PORT: 2311 case CTL_SET_PORT_WWNS: { 2312 struct ctl_port *port; 2313 struct ctl_port_entry *entry; 2314 2315 entry = (struct ctl_port_entry *)addr; 2316 2317 mtx_lock(&softc->ctl_lock); 2318 STAILQ_FOREACH(port, &softc->port_list, links) { 2319 int action, done; 2320 2321 action = 0; 2322 done = 0; 2323 2324 if ((entry->port_type == CTL_PORT_NONE) 2325 && (entry->targ_port == port->targ_port)) { 2326 /* 2327 * If the user only wants to enable or 2328 * disable or set WWNs on a specific port, 2329 * do the operation and we're done. 2330 */ 2331 action = 1; 2332 done = 1; 2333 } else if (entry->port_type & port->port_type) { 2334 /* 2335 * Compare the user's type mask with the 2336 * particular frontend type to see if we 2337 * have a match. 2338 */ 2339 action = 1; 2340 done = 0; 2341 2342 /* 2343 * Make sure the user isn't trying to set 2344 * WWNs on multiple ports at the same time. 2345 */ 2346 if (cmd == CTL_SET_PORT_WWNS) { 2347 printf("%s: Can't set WWNs on " 2348 "multiple ports\n", __func__); 2349 retval = EINVAL; 2350 break; 2351 } 2352 } 2353 if (action != 0) { 2354 /* 2355 * XXX KDM we have to drop the lock here, 2356 * because the online/offline operations 2357 * can potentially block. We need to 2358 * reference count the frontends so they 2359 * can't go away, 2360 */ 2361 mtx_unlock(&softc->ctl_lock); 2362 2363 if (cmd == CTL_ENABLE_PORT) { 2364 struct ctl_lun *lun; 2365 2366 STAILQ_FOREACH(lun, &softc->lun_list, 2367 links) { 2368 port->lun_enable(port->targ_lun_arg, 2369 lun->target, 2370 lun->lun); 2371 } 2372 2373 ctl_port_online(port); 2374 } else if (cmd == CTL_DISABLE_PORT) { 2375 struct ctl_lun *lun; 2376 2377 ctl_port_offline(port); 2378 2379 STAILQ_FOREACH(lun, &softc->lun_list, 2380 links) { 2381 port->lun_disable( 2382 port->targ_lun_arg, 2383 lun->target, 2384 lun->lun); 2385 } 2386 } 2387 2388 mtx_lock(&softc->ctl_lock); 2389 2390 if (cmd == CTL_SET_PORT_WWNS) 2391 ctl_port_set_wwns(port, 2392 (entry->flags & CTL_PORT_WWNN_VALID) ? 2393 1 : 0, entry->wwnn, 2394 (entry->flags & CTL_PORT_WWPN_VALID) ? 2395 1 : 0, entry->wwpn); 2396 } 2397 if (done != 0) 2398 break; 2399 } 2400 mtx_unlock(&softc->ctl_lock); 2401 break; 2402 } 2403 case CTL_GET_PORT_LIST: { 2404 struct ctl_port *port; 2405 struct ctl_port_list *list; 2406 int i; 2407 2408 list = (struct ctl_port_list *)addr; 2409 2410 if (list->alloc_len != (list->alloc_num * 2411 sizeof(struct ctl_port_entry))) { 2412 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2413 "alloc_num %u * sizeof(struct ctl_port_entry) " 2414 "%zu\n", __func__, list->alloc_len, 2415 list->alloc_num, sizeof(struct ctl_port_entry)); 2416 retval = EINVAL; 2417 break; 2418 } 2419 list->fill_len = 0; 2420 list->fill_num = 0; 2421 list->dropped_num = 0; 2422 i = 0; 2423 mtx_lock(&softc->ctl_lock); 2424 STAILQ_FOREACH(port, &softc->port_list, links) { 2425 struct ctl_port_entry entry, *list_entry; 2426 2427 if (list->fill_num >= list->alloc_num) { 2428 list->dropped_num++; 2429 continue; 2430 } 2431 2432 entry.port_type = port->port_type; 2433 strlcpy(entry.port_name, port->port_name, 2434 sizeof(entry.port_name)); 2435 entry.targ_port = port->targ_port; 2436 entry.physical_port = port->physical_port; 2437 entry.virtual_port = port->virtual_port; 2438 entry.wwnn = port->wwnn; 2439 entry.wwpn = port->wwpn; 2440 if (port->status & CTL_PORT_STATUS_ONLINE) 2441 entry.online = 1; 2442 else 2443 entry.online = 0; 2444 2445 list_entry = &list->entries[i]; 2446 2447 retval = copyout(&entry, list_entry, sizeof(entry)); 2448 if (retval != 0) { 2449 printf("%s: CTL_GET_PORT_LIST: copyout " 2450 "returned %d\n", __func__, retval); 2451 break; 2452 } 2453 i++; 2454 list->fill_num++; 2455 list->fill_len += sizeof(entry); 2456 } 2457 mtx_unlock(&softc->ctl_lock); 2458 2459 /* 2460 * If this is non-zero, we had a copyout fault, so there's 2461 * probably no point in attempting to set the status inside 2462 * the structure. 2463 */ 2464 if (retval != 0) 2465 break; 2466 2467 if (list->dropped_num > 0) 2468 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2469 else 2470 list->status = CTL_PORT_LIST_OK; 2471 break; 2472 } 2473 case CTL_DUMP_OOA: { 2474 struct ctl_lun *lun; 2475 union ctl_io *io; 2476 char printbuf[128]; 2477 struct sbuf sb; 2478 2479 mtx_lock(&softc->ctl_lock); 2480 printf("Dumping OOA queues:\n"); 2481 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2482 mtx_lock(&lun->lun_lock); 2483 for (io = (union ctl_io *)TAILQ_FIRST( 2484 &lun->ooa_queue); io != NULL; 2485 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2486 ooa_links)) { 2487 sbuf_new(&sb, printbuf, sizeof(printbuf), 2488 SBUF_FIXEDLEN); 2489 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2490 (intmax_t)lun->lun, 2491 io->scsiio.tag_num, 2492 (io->io_hdr.flags & 2493 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_ABORT) ? " ABORT" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2500 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2501 sbuf_finish(&sb); 2502 printf("%s\n", sbuf_data(&sb)); 2503 } 2504 mtx_unlock(&lun->lun_lock); 2505 } 2506 printf("OOA queues dump done\n"); 2507 mtx_unlock(&softc->ctl_lock); 2508 break; 2509 } 2510 case CTL_GET_OOA: { 2511 struct ctl_lun *lun; 2512 struct ctl_ooa *ooa_hdr; 2513 struct ctl_ooa_entry *entries; 2514 uint32_t cur_fill_num; 2515 2516 ooa_hdr = (struct ctl_ooa *)addr; 2517 2518 if ((ooa_hdr->alloc_len == 0) 2519 || (ooa_hdr->alloc_num == 0)) { 2520 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2521 "must be non-zero\n", __func__, 2522 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2523 retval = EINVAL; 2524 break; 2525 } 2526 2527 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2528 sizeof(struct ctl_ooa_entry))) { 2529 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2530 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2531 __func__, ooa_hdr->alloc_len, 2532 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 2537 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2538 if (entries == NULL) { 2539 printf("%s: could not allocate %d bytes for OOA " 2540 "dump\n", __func__, ooa_hdr->alloc_len); 2541 retval = ENOMEM; 2542 break; 2543 } 2544 2545 mtx_lock(&softc->ctl_lock); 2546 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2547 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2548 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2549 mtx_unlock(&softc->ctl_lock); 2550 free(entries, M_CTL); 2551 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2552 __func__, (uintmax_t)ooa_hdr->lun_num); 2553 retval = EINVAL; 2554 break; 2555 } 2556 2557 cur_fill_num = 0; 2558 2559 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2560 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2561 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2562 ooa_hdr, entries); 2563 if (retval != 0) 2564 break; 2565 } 2566 if (retval != 0) { 2567 mtx_unlock(&softc->ctl_lock); 2568 free(entries, M_CTL); 2569 break; 2570 } 2571 } else { 2572 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2573 2574 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2575 entries); 2576 } 2577 mtx_unlock(&softc->ctl_lock); 2578 2579 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2580 ooa_hdr->fill_len = ooa_hdr->fill_num * 2581 sizeof(struct ctl_ooa_entry); 2582 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2583 if (retval != 0) { 2584 printf("%s: error copying out %d bytes for OOA dump\n", 2585 __func__, ooa_hdr->fill_len); 2586 } 2587 2588 getbintime(&ooa_hdr->cur_bt); 2589 2590 if (cur_fill_num > ooa_hdr->alloc_num) { 2591 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2592 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2593 } else { 2594 ooa_hdr->dropped_num = 0; 2595 ooa_hdr->status = CTL_OOA_OK; 2596 } 2597 2598 free(entries, M_CTL); 2599 break; 2600 } 2601 case CTL_CHECK_OOA: { 2602 union ctl_io *io; 2603 struct ctl_lun *lun; 2604 struct ctl_ooa_info *ooa_info; 2605 2606 2607 ooa_info = (struct ctl_ooa_info *)addr; 2608 2609 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2610 ooa_info->status = CTL_OOA_INVALID_LUN; 2611 break; 2612 } 2613 mtx_lock(&softc->ctl_lock); 2614 lun = softc->ctl_luns[ooa_info->lun_id]; 2615 if (lun == NULL) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ooa_info->status = CTL_OOA_INVALID_LUN; 2618 break; 2619 } 2620 mtx_lock(&lun->lun_lock); 2621 mtx_unlock(&softc->ctl_lock); 2622 ooa_info->num_entries = 0; 2623 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2624 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2625 &io->io_hdr, ooa_links)) { 2626 ooa_info->num_entries++; 2627 } 2628 mtx_unlock(&lun->lun_lock); 2629 2630 ooa_info->status = CTL_OOA_SUCCESS; 2631 2632 break; 2633 } 2634 case CTL_HARD_START: 2635 case CTL_HARD_STOP: { 2636 struct ctl_fe_ioctl_startstop_info ss_info; 2637 struct cfi_metatask *metatask; 2638 struct mtx hs_mtx; 2639 2640 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2641 2642 cv_init(&ss_info.sem, "hard start/stop cv" ); 2643 2644 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2645 if (metatask == NULL) { 2646 retval = ENOMEM; 2647 mtx_destroy(&hs_mtx); 2648 break; 2649 } 2650 2651 if (cmd == CTL_HARD_START) 2652 metatask->tasktype = CFI_TASK_STARTUP; 2653 else 2654 metatask->tasktype = CFI_TASK_SHUTDOWN; 2655 2656 metatask->callback = ctl_ioctl_hard_startstop_callback; 2657 metatask->callback_arg = &ss_info; 2658 2659 cfi_action(metatask); 2660 2661 /* Wait for the callback */ 2662 mtx_lock(&hs_mtx); 2663 cv_wait_sig(&ss_info.sem, &hs_mtx); 2664 mtx_unlock(&hs_mtx); 2665 2666 /* 2667 * All information has been copied from the metatask by the 2668 * time cv_broadcast() is called, so we free the metatask here. 2669 */ 2670 cfi_free_metatask(metatask); 2671 2672 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2673 2674 mtx_destroy(&hs_mtx); 2675 break; 2676 } 2677 case CTL_BBRREAD: { 2678 struct ctl_bbrread_info *bbr_info; 2679 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2680 struct mtx bbr_mtx; 2681 struct cfi_metatask *metatask; 2682 2683 bbr_info = (struct ctl_bbrread_info *)addr; 2684 2685 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2686 2687 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2688 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2689 2690 fe_bbr_info.bbr_info = bbr_info; 2691 fe_bbr_info.lock = &bbr_mtx; 2692 2693 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2694 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2695 2696 if (metatask == NULL) { 2697 mtx_destroy(&bbr_mtx); 2698 cv_destroy(&fe_bbr_info.sem); 2699 retval = ENOMEM; 2700 break; 2701 } 2702 metatask->tasktype = CFI_TASK_BBRREAD; 2703 metatask->callback = ctl_ioctl_bbrread_callback; 2704 metatask->callback_arg = &fe_bbr_info; 2705 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2706 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2707 metatask->taskinfo.bbrread.len = bbr_info->len; 2708 2709 cfi_action(metatask); 2710 2711 mtx_lock(&bbr_mtx); 2712 while (fe_bbr_info.wakeup_done == 0) 2713 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2714 mtx_unlock(&bbr_mtx); 2715 2716 bbr_info->status = metatask->status; 2717 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2718 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2719 memcpy(&bbr_info->sense_data, 2720 &metatask->taskinfo.bbrread.sense_data, 2721 ctl_min(sizeof(bbr_info->sense_data), 2722 sizeof(metatask->taskinfo.bbrread.sense_data))); 2723 2724 cfi_free_metatask(metatask); 2725 2726 mtx_destroy(&bbr_mtx); 2727 cv_destroy(&fe_bbr_info.sem); 2728 2729 break; 2730 } 2731 case CTL_DELAY_IO: { 2732 struct ctl_io_delay_info *delay_info; 2733#ifdef CTL_IO_DELAY 2734 struct ctl_lun *lun; 2735#endif /* CTL_IO_DELAY */ 2736 2737 delay_info = (struct ctl_io_delay_info *)addr; 2738 2739#ifdef CTL_IO_DELAY 2740 mtx_lock(&softc->ctl_lock); 2741 2742 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2743 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2744 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2745 } else { 2746 lun = softc->ctl_luns[delay_info->lun_id]; 2747 mtx_lock(&lun->lun_lock); 2748 2749 delay_info->status = CTL_DELAY_STATUS_OK; 2750 2751 switch (delay_info->delay_type) { 2752 case CTL_DELAY_TYPE_CONT: 2753 break; 2754 case CTL_DELAY_TYPE_ONESHOT: 2755 break; 2756 default: 2757 delay_info->status = 2758 CTL_DELAY_STATUS_INVALID_TYPE; 2759 break; 2760 } 2761 2762 switch (delay_info->delay_loc) { 2763 case CTL_DELAY_LOC_DATAMOVE: 2764 lun->delay_info.datamove_type = 2765 delay_info->delay_type; 2766 lun->delay_info.datamove_delay = 2767 delay_info->delay_secs; 2768 break; 2769 case CTL_DELAY_LOC_DONE: 2770 lun->delay_info.done_type = 2771 delay_info->delay_type; 2772 lun->delay_info.done_delay = 2773 delay_info->delay_secs; 2774 break; 2775 default: 2776 delay_info->status = 2777 CTL_DELAY_STATUS_INVALID_LOC; 2778 break; 2779 } 2780 mtx_unlock(&lun->lun_lock); 2781 } 2782 2783 mtx_unlock(&softc->ctl_lock); 2784#else 2785 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2786#endif /* CTL_IO_DELAY */ 2787 break; 2788 } 2789 case CTL_REALSYNC_SET: { 2790 int *syncstate; 2791 2792 syncstate = (int *)addr; 2793 2794 mtx_lock(&softc->ctl_lock); 2795 switch (*syncstate) { 2796 case 0: 2797 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2798 break; 2799 case 1: 2800 softc->flags |= CTL_FLAG_REAL_SYNC; 2801 break; 2802 default: 2803 retval = EINVAL; 2804 break; 2805 } 2806 mtx_unlock(&softc->ctl_lock); 2807 break; 2808 } 2809 case CTL_REALSYNC_GET: { 2810 int *syncstate; 2811 2812 syncstate = (int*)addr; 2813 2814 mtx_lock(&softc->ctl_lock); 2815 if (softc->flags & CTL_FLAG_REAL_SYNC) 2816 *syncstate = 1; 2817 else 2818 *syncstate = 0; 2819 mtx_unlock(&softc->ctl_lock); 2820 2821 break; 2822 } 2823 case CTL_SETSYNC: 2824 case CTL_GETSYNC: { 2825 struct ctl_sync_info *sync_info; 2826 struct ctl_lun *lun; 2827 2828 sync_info = (struct ctl_sync_info *)addr; 2829 2830 mtx_lock(&softc->ctl_lock); 2831 lun = softc->ctl_luns[sync_info->lun_id]; 2832 if (lun == NULL) { 2833 mtx_unlock(&softc->ctl_lock); 2834 sync_info->status = CTL_GS_SYNC_NO_LUN; 2835 } 2836 /* 2837 * Get or set the sync interval. We're not bounds checking 2838 * in the set case, hopefully the user won't do something 2839 * silly. 2840 */ 2841 mtx_lock(&lun->lun_lock); 2842 mtx_unlock(&softc->ctl_lock); 2843 if (cmd == CTL_GETSYNC) 2844 sync_info->sync_interval = lun->sync_interval; 2845 else 2846 lun->sync_interval = sync_info->sync_interval; 2847 mtx_unlock(&lun->lun_lock); 2848 2849 sync_info->status = CTL_GS_SYNC_OK; 2850 2851 break; 2852 } 2853 case CTL_GETSTATS: { 2854 struct ctl_stats *stats; 2855 struct ctl_lun *lun; 2856 int i; 2857 2858 stats = (struct ctl_stats *)addr; 2859 2860 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2861 stats->alloc_len) { 2862 stats->status = CTL_SS_NEED_MORE_SPACE; 2863 stats->num_luns = softc->num_luns; 2864 break; 2865 } 2866 /* 2867 * XXX KDM no locking here. If the LUN list changes, 2868 * things can blow up. 2869 */ 2870 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2871 i++, lun = STAILQ_NEXT(lun, links)) { 2872 retval = copyout(&lun->stats, &stats->lun_stats[i], 2873 sizeof(lun->stats)); 2874 if (retval != 0) 2875 break; 2876 } 2877 stats->num_luns = softc->num_luns; 2878 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2879 softc->num_luns; 2880 stats->status = CTL_SS_OK; 2881#ifdef CTL_TIME_IO 2882 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2883#else 2884 stats->flags = CTL_STATS_FLAG_NONE; 2885#endif 2886 getnanouptime(&stats->timestamp); 2887 break; 2888 } 2889 case CTL_ERROR_INJECT: { 2890 struct ctl_error_desc *err_desc, *new_err_desc; 2891 struct ctl_lun *lun; 2892 2893 err_desc = (struct ctl_error_desc *)addr; 2894 2895 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2896 M_WAITOK | M_ZERO); 2897 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2898 2899 mtx_lock(&softc->ctl_lock); 2900 lun = softc->ctl_luns[err_desc->lun_id]; 2901 if (lun == NULL) { 2902 mtx_unlock(&softc->ctl_lock); 2903 free(new_err_desc, M_CTL); 2904 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2905 __func__, (uintmax_t)err_desc->lun_id); 2906 retval = EINVAL; 2907 break; 2908 } 2909 mtx_lock(&lun->lun_lock); 2910 mtx_unlock(&softc->ctl_lock); 2911 2912 /* 2913 * We could do some checking here to verify the validity 2914 * of the request, but given the complexity of error 2915 * injection requests, the checking logic would be fairly 2916 * complex. 2917 * 2918 * For now, if the request is invalid, it just won't get 2919 * executed and might get deleted. 2920 */ 2921 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2922 2923 /* 2924 * XXX KDM check to make sure the serial number is unique, 2925 * in case we somehow manage to wrap. That shouldn't 2926 * happen for a very long time, but it's the right thing to 2927 * do. 2928 */ 2929 new_err_desc->serial = lun->error_serial; 2930 err_desc->serial = lun->error_serial; 2931 lun->error_serial++; 2932 2933 mtx_unlock(&lun->lun_lock); 2934 break; 2935 } 2936 case CTL_ERROR_INJECT_DELETE: { 2937 struct ctl_error_desc *delete_desc, *desc, *desc2; 2938 struct ctl_lun *lun; 2939 int delete_done; 2940 2941 delete_desc = (struct ctl_error_desc *)addr; 2942 delete_done = 0; 2943 2944 mtx_lock(&softc->ctl_lock); 2945 lun = softc->ctl_luns[delete_desc->lun_id]; 2946 if (lun == NULL) { 2947 mtx_unlock(&softc->ctl_lock); 2948 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2949 __func__, (uintmax_t)delete_desc->lun_id); 2950 retval = EINVAL; 2951 break; 2952 } 2953 mtx_lock(&lun->lun_lock); 2954 mtx_unlock(&softc->ctl_lock); 2955 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2956 if (desc->serial != delete_desc->serial) 2957 continue; 2958 2959 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2960 links); 2961 free(desc, M_CTL); 2962 delete_done = 1; 2963 } 2964 mtx_unlock(&lun->lun_lock); 2965 if (delete_done == 0) { 2966 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2967 "error serial %ju on LUN %u\n", __func__, 2968 delete_desc->serial, delete_desc->lun_id); 2969 retval = EINVAL; 2970 break; 2971 } 2972 break; 2973 } 2974 case CTL_DUMP_STRUCTS: { 2975 int i, j, k, idx; 2976 struct ctl_port *port; 2977 struct ctl_frontend *fe; 2978 2979 mtx_lock(&softc->ctl_lock); 2980 printf("CTL Persistent Reservation information start:\n"); 2981 for (i = 0; i < CTL_MAX_LUNS; i++) { 2982 struct ctl_lun *lun; 2983 2984 lun = softc->ctl_luns[i]; 2985 2986 if ((lun == NULL) 2987 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2988 continue; 2989 2990 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2991 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2992 idx = j * CTL_MAX_INIT_PER_PORT + k; 2993 if (lun->per_res[idx].registered == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)scsi_8btou64( 2998 lun->per_res[idx].res_key.key)); 2999 } 3000 } 3001 } 3002 printf("CTL Persistent Reservation information end\n"); 3003 printf("CTL Ports:\n"); 3004 STAILQ_FOREACH(port, &softc->port_list, links) { 3005 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3006 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3007 port->frontend->name, port->port_type, 3008 port->physical_port, port->virtual_port, 3009 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3010 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3011 if (port->wwpn_iid[j].in_use == 0 && 3012 port->wwpn_iid[j].wwpn == 0 && 3013 port->wwpn_iid[j].name == NULL) 3014 continue; 3015 3016 printf(" iid %u use %d WWPN %#jx '%s'\n", 3017 j, port->wwpn_iid[j].in_use, 3018 (uintmax_t)port->wwpn_iid[j].wwpn, 3019 port->wwpn_iid[j].name); 3020 } 3021 } 3022 printf("CTL Port information end\n"); 3023 mtx_unlock(&softc->ctl_lock); 3024 /* 3025 * XXX KDM calling this without a lock. We'd likely want 3026 * to drop the lock before calling the frontend's dump 3027 * routine anyway. 3028 */ 3029 printf("CTL Frontends:\n"); 3030 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3031 printf(" Frontend '%s'\n", fe->name); 3032 if (fe->fe_dump != NULL) 3033 fe->fe_dump(); 3034 } 3035 printf("CTL Frontend information end\n"); 3036 break; 3037 } 3038 case CTL_LUN_REQ: { 3039 struct ctl_lun_req *lun_req; 3040 struct ctl_backend_driver *backend; 3041 3042 lun_req = (struct ctl_lun_req *)addr; 3043 3044 backend = ctl_backend_find(lun_req->backend); 3045 if (backend == NULL) { 3046 lun_req->status = CTL_LUN_ERROR; 3047 snprintf(lun_req->error_str, 3048 sizeof(lun_req->error_str), 3049 "Backend \"%s\" not found.", 3050 lun_req->backend); 3051 break; 3052 } 3053 if (lun_req->num_be_args > 0) { 3054 lun_req->kern_be_args = ctl_copyin_args( 3055 lun_req->num_be_args, 3056 lun_req->be_args, 3057 lun_req->error_str, 3058 sizeof(lun_req->error_str)); 3059 if (lun_req->kern_be_args == NULL) { 3060 lun_req->status = CTL_LUN_ERROR; 3061 break; 3062 } 3063 } 3064 3065 retval = backend->ioctl(dev, cmd, addr, flag, td); 3066 3067 if (lun_req->num_be_args > 0) { 3068 ctl_copyout_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 ctl_free_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 } 3073 break; 3074 } 3075 case CTL_LUN_LIST: { 3076 struct sbuf *sb; 3077 struct ctl_lun *lun; 3078 struct ctl_lun_list *list; 3079 struct ctl_option *opt; 3080 3081 list = (struct ctl_lun_list *)addr; 3082 3083 /* 3084 * Allocate a fixed length sbuf here, based on the length 3085 * of the user's buffer. We could allocate an auto-extending 3086 * buffer, and then tell the user how much larger our 3087 * amount of data is than his buffer, but that presents 3088 * some problems: 3089 * 3090 * 1. The sbuf(9) routines use a blocking malloc, and so 3091 * we can't hold a lock while calling them with an 3092 * auto-extending buffer. 3093 * 3094 * 2. There is not currently a LUN reference counting 3095 * mechanism, outside of outstanding transactions on 3096 * the LUN's OOA queue. So a LUN could go away on us 3097 * while we're getting the LUN number, backend-specific 3098 * information, etc. Thus, given the way things 3099 * currently work, we need to hold the CTL lock while 3100 * grabbing LUN information. 3101 * 3102 * So, from the user's standpoint, the best thing to do is 3103 * allocate what he thinks is a reasonable buffer length, 3104 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3105 * double the buffer length and try again. (And repeat 3106 * that until he succeeds.) 3107 */ 3108 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3109 if (sb == NULL) { 3110 list->status = CTL_LUN_LIST_ERROR; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Unable to allocate %d bytes for LUN list", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_printf(sb, "<ctllunlist>\n"); 3118 3119 mtx_lock(&softc->ctl_lock); 3120 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3121 mtx_lock(&lun->lun_lock); 3122 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3123 (uintmax_t)lun->lun); 3124 3125 /* 3126 * Bail out as soon as we see that we've overfilled 3127 * the buffer. 3128 */ 3129 if (retval != 0) 3130 break; 3131 3132 retval = sbuf_printf(sb, "\t<backend_type>%s" 3133 "</backend_type>\n", 3134 (lun->backend == NULL) ? "none" : 3135 lun->backend->name); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3141 lun->be_lun->lun_type); 3142 3143 if (retval != 0) 3144 break; 3145 3146 if (lun->backend == NULL) { 3147 retval = sbuf_printf(sb, "</lun>\n"); 3148 if (retval != 0) 3149 break; 3150 continue; 3151 } 3152 3153 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3154 (lun->be_lun->maxlba > 0) ? 3155 lun->be_lun->maxlba + 1 : 0); 3156 3157 if (retval != 0) 3158 break; 3159 3160 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3161 lun->be_lun->blocksize); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = sbuf_printf(sb, "\t<serial_number>"); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = ctl_sbuf_printf_esc(sb, 3172 lun->be_lun->serial_num); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "</serial_number>\n"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "\t<device_id>"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3188 3189 if (retval != 0) 3190 break; 3191 3192 retval = sbuf_printf(sb, "</device_id>\n"); 3193 3194 if (retval != 0) 3195 break; 3196 3197 if (lun->backend->lun_info != NULL) { 3198 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3199 if (retval != 0) 3200 break; 3201 } 3202 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3203 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3204 opt->name, opt->value, opt->name); 3205 if (retval != 0) 3206 break; 3207 } 3208 3209 retval = sbuf_printf(sb, "</lun>\n"); 3210 3211 if (retval != 0) 3212 break; 3213 mtx_unlock(&lun->lun_lock); 3214 } 3215 if (lun != NULL) 3216 mtx_unlock(&lun->lun_lock); 3217 mtx_unlock(&softc->ctl_lock); 3218 3219 if ((retval != 0) 3220 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3221 retval = 0; 3222 sbuf_delete(sb); 3223 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3224 snprintf(list->error_str, sizeof(list->error_str), 3225 "Out of space, %d bytes is too small", 3226 list->alloc_len); 3227 break; 3228 } 3229 3230 sbuf_finish(sb); 3231 3232 retval = copyout(sbuf_data(sb), list->lun_xml, 3233 sbuf_len(sb) + 1); 3234 3235 list->fill_len = sbuf_len(sb) + 1; 3236 list->status = CTL_LUN_LIST_OK; 3237 sbuf_delete(sb); 3238 break; 3239 } 3240 case CTL_ISCSI: { 3241 struct ctl_iscsi *ci; 3242 struct ctl_frontend *fe; 3243 3244 ci = (struct ctl_iscsi *)addr; 3245 3246 fe = ctl_frontend_find("iscsi"); 3247 if (fe == NULL) { 3248 ci->status = CTL_ISCSI_ERROR; 3249 snprintf(ci->error_str, sizeof(ci->error_str), 3250 "Frontend \"iscsi\" not found."); 3251 break; 3252 } 3253 3254 retval = fe->ioctl(dev, cmd, addr, flag, td); 3255 break; 3256 } 3257 case CTL_PORT_REQ: { 3258 struct ctl_req *req; 3259 struct ctl_frontend *fe; 3260 3261 req = (struct ctl_req *)addr; 3262 3263 fe = ctl_frontend_find(req->driver); 3264 if (fe == NULL) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Frontend \"%s\" not found.", req->driver); 3268 break; 3269 } 3270 if (req->num_args > 0) { 3271 req->kern_args = ctl_copyin_args(req->num_args, 3272 req->args, req->error_str, sizeof(req->error_str)); 3273 if (req->kern_args == NULL) { 3274 req->status = CTL_LUN_ERROR; 3275 break; 3276 } 3277 } 3278 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 3281 if (req->num_args > 0) { 3282 ctl_copyout_args(req->num_args, req->kern_args); 3283 ctl_free_args(req->num_args, req->kern_args); 3284 } 3285 break; 3286 } 3287 case CTL_PORT_LIST: { 3288 struct sbuf *sb; 3289 struct ctl_port *port; 3290 struct ctl_lun_list *list; 3291 struct ctl_option *opt; 3292 3293 list = (struct ctl_lun_list *)addr; 3294 3295 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3296 if (sb == NULL) { 3297 list->status = CTL_LUN_LIST_ERROR; 3298 snprintf(list->error_str, sizeof(list->error_str), 3299 "Unable to allocate %d bytes for LUN list", 3300 list->alloc_len); 3301 break; 3302 } 3303 3304 sbuf_printf(sb, "<ctlportlist>\n"); 3305 3306 mtx_lock(&softc->ctl_lock); 3307 STAILQ_FOREACH(port, &softc->port_list, links) { 3308 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3309 (uintmax_t)port->targ_port); 3310 3311 /* 3312 * Bail out as soon as we see that we've overfilled 3313 * the buffer. 3314 */ 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3319 "</frontend_type>\n", port->frontend->name); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3324 port->port_type); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3329 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3334 port->port_name); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3339 port->physical_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3344 port->virtual_port); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3349 (uintmax_t)port->wwnn); 3350 if (retval != 0) 3351 break; 3352 3353 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3354 (uintmax_t)port->wwpn); 3355 if (retval != 0) 3356 break; 3357 3358 if (port->port_info != NULL) { 3359 retval = port->port_info(port->onoff_arg, sb); 3360 if (retval != 0) 3361 break; 3362 } 3363 STAILQ_FOREACH(opt, &port->options, links) { 3364 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3365 opt->name, opt->value, opt->name); 3366 if (retval != 0) 3367 break; 3368 } 3369 3370 retval = sbuf_printf(sb, "</targ_port>\n"); 3371 if (retval != 0) 3372 break; 3373 } 3374 mtx_unlock(&softc->ctl_lock); 3375 3376 if ((retval != 0) 3377 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3378 retval = 0; 3379 sbuf_delete(sb); 3380 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3381 snprintf(list->error_str, sizeof(list->error_str), 3382 "Out of space, %d bytes is too small", 3383 list->alloc_len); 3384 break; 3385 } 3386 3387 sbuf_finish(sb); 3388 3389 retval = copyout(sbuf_data(sb), list->lun_xml, 3390 sbuf_len(sb) + 1); 3391 3392 list->fill_len = sbuf_len(sb) + 1; 3393 list->status = CTL_LUN_LIST_OK; 3394 sbuf_delete(sb); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 if (nexus->targ_port < CTL_MAX_PORTS) 3438 return (nexus->initid.id + 3439 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3440 else 3441 return (nexus->initid.id + 3442 ((nexus->targ_port - CTL_MAX_PORTS) * 3443 CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446uint32_t 3447ctl_get_resindex(struct ctl_nexus *nexus) 3448{ 3449 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3450} 3451 3452uint32_t 3453ctl_port_idx(int port_num) 3454{ 3455 if (port_num < CTL_MAX_PORTS) 3456 return(port_num); 3457 else 3458 return(port_num - CTL_MAX_PORTS); 3459} 3460 3461static uint32_t 3462ctl_map_lun(int port_num, uint32_t lun_id) 3463{ 3464 struct ctl_port *port; 3465 3466 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3467 if (port == NULL) 3468 return (UINT32_MAX); 3469 if (port->lun_map == NULL) 3470 return (lun_id); 3471 return (port->lun_map(port->targ_lun_arg, lun_id)); 3472} 3473 3474static uint32_t 3475ctl_map_lun_back(int port_num, uint32_t lun_id) 3476{ 3477 struct ctl_port *port; 3478 uint32_t i; 3479 3480 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3481 if (port->lun_map == NULL) 3482 return (lun_id); 3483 for (i = 0; i < CTL_MAX_LUNS; i++) { 3484 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3485 return (i); 3486 } 3487 return (UINT32_MAX); 3488} 3489 3490/* 3491 * Note: This only works for bitmask sizes that are at least 32 bits, and 3492 * that are a power of 2. 3493 */ 3494int 3495ctl_ffz(uint32_t *mask, uint32_t size) 3496{ 3497 uint32_t num_chunks, num_pieces; 3498 int i, j; 3499 3500 num_chunks = (size >> 5); 3501 if (num_chunks == 0) 3502 num_chunks++; 3503 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3504 3505 for (i = 0; i < num_chunks; i++) { 3506 for (j = 0; j < num_pieces; j++) { 3507 if ((mask[i] & (1 << j)) == 0) 3508 return ((i << 5) + j); 3509 } 3510 } 3511 3512 return (-1); 3513} 3514 3515int 3516ctl_set_mask(uint32_t *mask, uint32_t bit) 3517{ 3518 uint32_t chunk, piece; 3519 3520 chunk = bit >> 5; 3521 piece = bit % (sizeof(uint32_t) * 8); 3522 3523 if ((mask[chunk] & (1 << piece)) != 0) 3524 return (-1); 3525 else 3526 mask[chunk] |= (1 << piece); 3527 3528 return (0); 3529} 3530 3531int 3532ctl_clear_mask(uint32_t *mask, uint32_t bit) 3533{ 3534 uint32_t chunk, piece; 3535 3536 chunk = bit >> 5; 3537 piece = bit % (sizeof(uint32_t) * 8); 3538 3539 if ((mask[chunk] & (1 << piece)) == 0) 3540 return (-1); 3541 else 3542 mask[chunk] &= ~(1 << piece); 3543 3544 return (0); 3545} 3546 3547int 3548ctl_is_set(uint32_t *mask, uint32_t bit) 3549{ 3550 uint32_t chunk, piece; 3551 3552 chunk = bit >> 5; 3553 piece = bit % (sizeof(uint32_t) * 8); 3554 3555 if ((mask[chunk] & (1 << piece)) == 0) 3556 return (0); 3557 else 3558 return (1); 3559} 3560 3561#ifdef unused 3562/* 3563 * The bus, target and lun are optional, they can be filled in later. 3564 * can_wait is used to determine whether we can wait on the malloc or not. 3565 */ 3566union ctl_io* 3567ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3568 uint32_t targ_lun, int can_wait) 3569{ 3570 union ctl_io *io; 3571 3572 if (can_wait) 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3574 else 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 3577 if (io != NULL) { 3578 io->io_hdr.io_type = io_type; 3579 io->io_hdr.targ_port = targ_port; 3580 /* 3581 * XXX KDM this needs to change/go away. We need to move 3582 * to a preallocated pool of ctl_scsiio structures. 3583 */ 3584 io->io_hdr.nexus.targ_target.id = targ_target; 3585 io->io_hdr.nexus.targ_lun = targ_lun; 3586 } 3587 3588 return (io); 3589} 3590 3591void 3592ctl_kfree_io(union ctl_io *io) 3593{ 3594 free(io, M_CTL); 3595} 3596#endif /* unused */ 3597 3598/* 3599 * ctl_softc, pool_type, total_ctl_io are passed in. 3600 * npool is passed out. 3601 */ 3602int 3603ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3604 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3605{ 3606 uint32_t i; 3607 union ctl_io *cur_io, *next_io; 3608 struct ctl_io_pool *pool; 3609 int retval; 3610 3611 retval = 0; 3612 3613 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3614 M_NOWAIT | M_ZERO); 3615 if (pool == NULL) { 3616 retval = ENOMEM; 3617 goto bailout; 3618 } 3619 3620 pool->type = pool_type; 3621 pool->ctl_softc = ctl_softc; 3622 3623 mtx_lock(&ctl_softc->pool_lock); 3624 pool->id = ctl_softc->cur_pool_id++; 3625 mtx_unlock(&ctl_softc->pool_lock); 3626 3627 pool->flags = CTL_POOL_FLAG_NONE; 3628 pool->refcount = 1; /* Reference for validity. */ 3629 STAILQ_INIT(&pool->free_queue); 3630 3631 /* 3632 * XXX KDM other options here: 3633 * - allocate a page at a time 3634 * - allocate one big chunk of memory. 3635 * Page allocation might work well, but would take a little more 3636 * tracking. 3637 */ 3638 for (i = 0; i < total_ctl_io; i++) { 3639 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3640 M_NOWAIT); 3641 if (cur_io == NULL) { 3642 retval = ENOMEM; 3643 break; 3644 } 3645 cur_io->io_hdr.pool = pool; 3646 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3647 pool->total_ctl_io++; 3648 pool->free_ctl_io++; 3649 } 3650 3651 if (retval != 0) { 3652 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3653 cur_io != NULL; cur_io = next_io) { 3654 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3655 links); 3656 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3657 ctl_io_hdr, links); 3658 free(cur_io, M_CTLIO); 3659 } 3660 3661 free(pool, M_CTL); 3662 goto bailout; 3663 } 3664 mtx_lock(&ctl_softc->pool_lock); 3665 ctl_softc->num_pools++; 3666 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3667 /* 3668 * Increment our usage count if this is an external consumer, so we 3669 * can't get unloaded until the external consumer (most likely a 3670 * FETD) unloads and frees his pool. 3671 * 3672 * XXX KDM will this increment the caller's module use count, or 3673 * mine? 3674 */ 3675#if 0 3676 if ((pool_type != CTL_POOL_EMERGENCY) 3677 && (pool_type != CTL_POOL_INTERNAL) 3678 && (pool_type != CTL_POOL_4OTHERSC)) 3679 MOD_INC_USE_COUNT; 3680#endif 3681 3682 mtx_unlock(&ctl_softc->pool_lock); 3683 3684 *npool = pool; 3685 3686bailout: 3687 3688 return (retval); 3689} 3690 3691static int 3692ctl_pool_acquire(struct ctl_io_pool *pool) 3693{ 3694 3695 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3696 3697 if (pool->flags & CTL_POOL_FLAG_INVALID) 3698 return (EINVAL); 3699 3700 pool->refcount++; 3701 3702 return (0); 3703} 3704 3705static void 3706ctl_pool_release(struct ctl_io_pool *pool) 3707{ 3708 struct ctl_softc *ctl_softc = pool->ctl_softc; 3709 union ctl_io *io; 3710 3711 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3712 3713 if (--pool->refcount != 0) 3714 return; 3715 3716 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3717 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3718 links); 3719 free(io, M_CTLIO); 3720 } 3721 3722 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3723 ctl_softc->num_pools--; 3724 3725 /* 3726 * XXX KDM will this decrement the caller's usage count or mine? 3727 */ 3728#if 0 3729 if ((pool->type != CTL_POOL_EMERGENCY) 3730 && (pool->type != CTL_POOL_INTERNAL) 3731 && (pool->type != CTL_POOL_4OTHERSC)) 3732 MOD_DEC_USE_COUNT; 3733#endif 3734 3735 free(pool, M_CTL); 3736} 3737 3738void 3739ctl_pool_free(struct ctl_io_pool *pool) 3740{ 3741 struct ctl_softc *ctl_softc; 3742 3743 if (pool == NULL) 3744 return; 3745 3746 ctl_softc = pool->ctl_softc; 3747 mtx_lock(&ctl_softc->pool_lock); 3748 pool->flags |= CTL_POOL_FLAG_INVALID; 3749 ctl_pool_release(pool); 3750 mtx_unlock(&ctl_softc->pool_lock); 3751} 3752 3753/* 3754 * This routine does not block (except for spinlocks of course). 3755 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3756 * possible. 3757 */ 3758union ctl_io * 3759ctl_alloc_io(void *pool_ref) 3760{ 3761 union ctl_io *io; 3762 struct ctl_softc *ctl_softc; 3763 struct ctl_io_pool *pool, *npool; 3764 struct ctl_io_pool *emergency_pool; 3765 3766 pool = (struct ctl_io_pool *)pool_ref; 3767 3768 if (pool == NULL) { 3769 printf("%s: pool is NULL\n", __func__); 3770 return (NULL); 3771 } 3772 3773 emergency_pool = NULL; 3774 3775 ctl_softc = pool->ctl_softc; 3776 3777 mtx_lock(&ctl_softc->pool_lock); 3778 /* 3779 * First, try to get the io structure from the user's pool. 3780 */ 3781 if (ctl_pool_acquire(pool) == 0) { 3782 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3783 if (io != NULL) { 3784 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3785 pool->total_allocated++; 3786 pool->free_ctl_io--; 3787 mtx_unlock(&ctl_softc->pool_lock); 3788 return (io); 3789 } else 3790 ctl_pool_release(pool); 3791 } 3792 /* 3793 * If he doesn't have any io structures left, search for an 3794 * emergency pool and grab one from there. 3795 */ 3796 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3797 if (npool->type != CTL_POOL_EMERGENCY) 3798 continue; 3799 3800 if (ctl_pool_acquire(npool) != 0) 3801 continue; 3802 3803 emergency_pool = npool; 3804 3805 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3806 if (io != NULL) { 3807 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3808 npool->total_allocated++; 3809 npool->free_ctl_io--; 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 return (io); 3812 } else 3813 ctl_pool_release(npool); 3814 } 3815 3816 /* Drop the spinlock before we malloc */ 3817 mtx_unlock(&ctl_softc->pool_lock); 3818 3819 /* 3820 * The emergency pool (if it exists) didn't have one, so try an 3821 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3822 */ 3823 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3824 if (io != NULL) { 3825 /* 3826 * If the emergency pool exists but is empty, add this 3827 * ctl_io to its list when it gets freed. 3828 */ 3829 if (emergency_pool != NULL) { 3830 mtx_lock(&ctl_softc->pool_lock); 3831 if (ctl_pool_acquire(emergency_pool) == 0) { 3832 io->io_hdr.pool = emergency_pool; 3833 emergency_pool->total_ctl_io++; 3834 /* 3835 * Need to bump this, otherwise 3836 * total_allocated and total_freed won't 3837 * match when we no longer have anything 3838 * outstanding. 3839 */ 3840 emergency_pool->total_allocated++; 3841 } 3842 mtx_unlock(&ctl_softc->pool_lock); 3843 } else 3844 io->io_hdr.pool = NULL; 3845 } 3846 3847 return (io); 3848} 3849 3850void 3851ctl_free_io(union ctl_io *io) 3852{ 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * If this ctl_io has a pool, return it to that pool. 3858 */ 3859 if (io->io_hdr.pool != NULL) { 3860 struct ctl_io_pool *pool; 3861 3862 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3863 mtx_lock(&pool->ctl_softc->pool_lock); 3864 io->io_hdr.io_type = 0xff; 3865 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3866 pool->total_freed++; 3867 pool->free_ctl_io++; 3868 ctl_pool_release(pool); 3869 mtx_unlock(&pool->ctl_softc->pool_lock); 3870 } else { 3871 /* 3872 * Otherwise, just free it. We probably malloced it and 3873 * the emergency pool wasn't available. 3874 */ 3875 free(io, M_CTLIO); 3876 } 3877 3878} 3879 3880void 3881ctl_zero_io(union ctl_io *io) 3882{ 3883 void *pool_ref; 3884 3885 if (io == NULL) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = io->io_hdr.pool; 3892 3893 memset(io, 0, sizeof(*io)); 3894 3895 io->io_hdr.pool = pool_ref; 3896} 3897 3898/* 3899 * This routine is currently used for internal copies of ctl_ios that need 3900 * to persist for some reason after we've already returned status to the 3901 * FETD. (Thus the flag set.) 3902 * 3903 * XXX XXX 3904 * Note that this makes a blind copy of all fields in the ctl_io, except 3905 * for the pool reference. This includes any memory that has been 3906 * allocated! That memory will no longer be valid after done has been 3907 * called, so this would be VERY DANGEROUS for command that actually does 3908 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3909 * start and stop commands, which don't transfer any data, so this is not a 3910 * problem. If it is used for anything else, the caller would also need to 3911 * allocate data buffer space and this routine would need to be modified to 3912 * copy the data buffer(s) as well. 3913 */ 3914void 3915ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3916{ 3917 void *pool_ref; 3918 3919 if ((src == NULL) 3920 || (dest == NULL)) 3921 return; 3922 3923 /* 3924 * May need to preserve linked list pointers at some point too. 3925 */ 3926 pool_ref = dest->io_hdr.pool; 3927 3928 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3929 3930 dest->io_hdr.pool = pool_ref; 3931 /* 3932 * We need to know that this is an internal copy, and doesn't need 3933 * to get passed back to the FETD that allocated it. 3934 */ 3935 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3936} 3937 3938#ifdef NEEDTOPORT 3939static void 3940ctl_update_power_subpage(struct copan_power_subpage *page) 3941{ 3942 int num_luns, num_partitions, config_type; 3943 struct ctl_softc *softc; 3944 cs_BOOL_t aor_present, shelf_50pct_power; 3945 cs_raidset_personality_t rs_type; 3946 int max_active_luns; 3947 3948 softc = control_softc; 3949 3950 /* subtract out the processor LUN */ 3951 num_luns = softc->num_luns - 1; 3952 /* 3953 * Default to 7 LUNs active, which was the only number we allowed 3954 * in the past. 3955 */ 3956 max_active_luns = 7; 3957 3958 num_partitions = config_GetRsPartitionInfo(); 3959 config_type = config_GetConfigType(); 3960 shelf_50pct_power = config_GetShelfPowerMode(); 3961 aor_present = config_IsAorRsPresent(); 3962 3963 rs_type = ddb_GetRsRaidType(1); 3964 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3965 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3966 EPRINT(0, "Unsupported RS type %d!", rs_type); 3967 } 3968 3969 3970 page->total_luns = num_luns; 3971 3972 switch (config_type) { 3973 case 40: 3974 /* 3975 * In a 40 drive configuration, it doesn't matter what DC 3976 * cards we have, whether we have AOR enabled or not, 3977 * partitioning or not, or what type of RAIDset we have. 3978 * In that scenario, we can power up every LUN we present 3979 * to the user. 3980 */ 3981 max_active_luns = num_luns; 3982 3983 break; 3984 case 64: 3985 if (shelf_50pct_power == CS_FALSE) { 3986 /* 25% power */ 3987 if (aor_present == CS_TRUE) { 3988 if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID5) { 3990 max_active_luns = 7; 3991 } else if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID1){ 3993 max_active_luns = 14; 3994 } else { 3995 /* XXX KDM now what?? */ 3996 } 3997 } else { 3998 if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID5) { 4000 max_active_luns = 8; 4001 } else if (rs_type == 4002 CS_RAIDSET_PERSONALITY_RAID1){ 4003 max_active_luns = 16; 4004 } else { 4005 /* XXX KDM now what?? */ 4006 } 4007 } 4008 } else { 4009 /* 50% power */ 4010 /* 4011 * With 50% power in a 64 drive configuration, we 4012 * can power all LUNs we present. 4013 */ 4014 max_active_luns = num_luns; 4015 } 4016 break; 4017 case 112: 4018 if (shelf_50pct_power == CS_FALSE) { 4019 /* 25% power */ 4020 if (aor_present == CS_TRUE) { 4021 if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID5) { 4023 max_active_luns = 7; 4024 } else if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID1){ 4026 max_active_luns = 14; 4027 } else { 4028 /* XXX KDM now what?? */ 4029 } 4030 } else { 4031 if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID5) { 4033 max_active_luns = 8; 4034 } else if (rs_type == 4035 CS_RAIDSET_PERSONALITY_RAID1){ 4036 max_active_luns = 16; 4037 } else { 4038 /* XXX KDM now what?? */ 4039 } 4040 } 4041 } else { 4042 /* 50% power */ 4043 if (aor_present == CS_TRUE) { 4044 if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID5) { 4046 max_active_luns = 14; 4047 } else if (rs_type == 4048 CS_RAIDSET_PERSONALITY_RAID1){ 4049 /* 4050 * We're assuming here that disk 4051 * caching is enabled, and so we're 4052 * able to power up half of each 4053 * LUN, and cache all writes. 4054 */ 4055 max_active_luns = num_luns; 4056 } else { 4057 /* XXX KDM now what?? */ 4058 } 4059 } else { 4060 if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID5) { 4062 max_active_luns = 15; 4063 } else if (rs_type == 4064 CS_RAIDSET_PERSONALITY_RAID1){ 4065 max_active_luns = 30; 4066 } else { 4067 /* XXX KDM now what?? */ 4068 } 4069 } 4070 } 4071 break; 4072 default: 4073 /* 4074 * In this case, we have an unknown configuration, so we 4075 * just use the default from above. 4076 */ 4077 break; 4078 } 4079 4080 page->max_active_luns = max_active_luns; 4081#if 0 4082 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4083 page->total_luns, page->max_active_luns); 4084#endif 4085} 4086#endif /* NEEDTOPORT */ 4087 4088/* 4089 * This routine could be used in the future to load default and/or saved 4090 * mode page parameters for a particuar lun. 4091 */ 4092static int 4093ctl_init_page_index(struct ctl_lun *lun) 4094{ 4095 int i; 4096 struct ctl_page_index *page_index; 4097 struct ctl_softc *softc; 4098 const char *value; 4099 4100 memcpy(&lun->mode_pages.index, page_index_template, 4101 sizeof(page_index_template)); 4102 4103 softc = lun->ctl_softc; 4104 4105 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4106 4107 page_index = &lun->mode_pages.index[i]; 4108 /* 4109 * If this is a disk-only mode page, there's no point in 4110 * setting it up. For some pages, we have to have some 4111 * basic information about the disk in order to calculate the 4112 * mode page data. 4113 */ 4114 if ((lun->be_lun->lun_type != T_DIRECT) 4115 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4116 continue; 4117 4118 switch (page_index->page_code & SMPH_PC_MASK) { 4119 case SMS_FORMAT_DEVICE_PAGE: { 4120 struct scsi_format_page *format_page; 4121 4122 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4123 panic("subpage is incorrect!"); 4124 4125 /* 4126 * Sectors per track are set above. Bytes per 4127 * sector need to be set here on a per-LUN basis. 4128 */ 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[ 4133 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4134 sizeof(format_page_changeable)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4139 &format_page_default, 4140 sizeof(format_page_default)); 4141 4142 format_page = &lun->mode_pages.format_page[ 4143 CTL_PAGE_CURRENT]; 4144 scsi_ulto2b(lun->be_lun->blocksize, 4145 format_page->bytes_per_sector); 4146 4147 format_page = &lun->mode_pages.format_page[ 4148 CTL_PAGE_DEFAULT]; 4149 scsi_ulto2b(lun->be_lun->blocksize, 4150 format_page->bytes_per_sector); 4151 4152 format_page = &lun->mode_pages.format_page[ 4153 CTL_PAGE_SAVED]; 4154 scsi_ulto2b(lun->be_lun->blocksize, 4155 format_page->bytes_per_sector); 4156 4157 page_index->page_data = 4158 (uint8_t *)lun->mode_pages.format_page; 4159 break; 4160 } 4161 case SMS_RIGID_DISK_PAGE: { 4162 struct scsi_rigid_disk_page *rigid_disk_page; 4163 uint32_t sectors_per_cylinder; 4164 uint64_t cylinders; 4165#ifndef __XSCALE__ 4166 int shift; 4167#endif /* !__XSCALE__ */ 4168 4169 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4170 panic("invalid subpage value %d", 4171 page_index->subpage); 4172 4173 /* 4174 * Rotation rate and sectors per track are set 4175 * above. We calculate the cylinders here based on 4176 * capacity. Due to the number of heads and 4177 * sectors per track we're using, smaller arrays 4178 * may turn out to have 0 cylinders. Linux and 4179 * FreeBSD don't pay attention to these mode pages 4180 * to figure out capacity, but Solaris does. It 4181 * seems to deal with 0 cylinders just fine, and 4182 * works out a fake geometry based on the capacity. 4183 */ 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4189 sizeof(rigid_disk_page_changeable)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 memcpy(&lun->mode_pages.rigid_disk_page[ 4194 CTL_PAGE_SAVED], &rigid_disk_page_default, 4195 sizeof(rigid_disk_page_default)); 4196 4197 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4198 CTL_DEFAULT_HEADS; 4199 4200 /* 4201 * The divide method here will be more accurate, 4202 * probably, but results in floating point being 4203 * used in the kernel on i386 (__udivdi3()). On the 4204 * XScale, though, __udivdi3() is implemented in 4205 * software. 4206 * 4207 * The shift method for cylinder calculation is 4208 * accurate if sectors_per_cylinder is a power of 4209 * 2. Otherwise it might be slightly off -- you 4210 * might have a bit of a truncation problem. 4211 */ 4212#ifdef __XSCALE__ 4213 cylinders = (lun->be_lun->maxlba + 1) / 4214 sectors_per_cylinder; 4215#else 4216 for (shift = 31; shift > 0; shift--) { 4217 if (sectors_per_cylinder & (1 << shift)) 4218 break; 4219 } 4220 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4221#endif 4222 4223 /* 4224 * We've basically got 3 bytes, or 24 bits for the 4225 * cylinder size in the mode page. If we're over, 4226 * just round down to 2^24. 4227 */ 4228 if (cylinders > 0xffffff) 4229 cylinders = 0xffffff; 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_CURRENT]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4236 CTL_PAGE_DEFAULT]; 4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4238 4239 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4240 CTL_PAGE_SAVED]; 4241 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4242 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.rigid_disk_page; 4245 break; 4246 } 4247 case SMS_CACHING_PAGE: { 4248 struct scsi_caching_page *caching_page; 4249 4250 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4251 panic("invalid subpage value %d", 4252 page_index->subpage); 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 caching_page = &lun->mode_pages.caching_page[ 4263 CTL_PAGE_SAVED]; 4264 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4265 if (value != NULL && strcmp(value, "off") == 0) 4266 caching_page->flags1 &= ~SCP_WCE; 4267 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4268 if (value != NULL && strcmp(value, "off") == 0) 4269 caching_page->flags1 |= SCP_RCD; 4270 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4272 sizeof(caching_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.caching_page; 4275 break; 4276 } 4277 case SMS_CONTROL_MODE_PAGE: { 4278 struct scsi_control_page *control_page; 4279 4280 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4281 panic("invalid subpage value %d", 4282 page_index->subpage); 4283 4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4285 &control_page_default, 4286 sizeof(control_page_default)); 4287 memcpy(&lun->mode_pages.control_page[ 4288 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4289 sizeof(control_page_changeable)); 4290 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4291 &control_page_default, 4292 sizeof(control_page_default)); 4293 control_page = &lun->mode_pages.control_page[ 4294 CTL_PAGE_SAVED]; 4295 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4296 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4297 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4298 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4299 } 4300 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4301 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4302 sizeof(control_page_default)); 4303 page_index->page_data = 4304 (uint8_t *)lun->mode_pages.control_page; 4305 break; 4306 4307 } 4308 case SMS_VENDOR_SPECIFIC_PAGE:{ 4309 switch (page_index->subpage) { 4310 case PWR_SUBPAGE_CODE: { 4311 struct copan_power_subpage *current_page, 4312 *saved_page; 4313 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_CURRENT], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 memcpy(&lun->mode_pages.power_subpage[ 4319 CTL_PAGE_CHANGEABLE], 4320 &power_page_changeable, 4321 sizeof(power_page_changeable)); 4322 memcpy(&lun->mode_pages.power_subpage[ 4323 CTL_PAGE_DEFAULT], 4324 &power_page_default, 4325 sizeof(power_page_default)); 4326 memcpy(&lun->mode_pages.power_subpage[ 4327 CTL_PAGE_SAVED], 4328 &power_page_default, 4329 sizeof(power_page_default)); 4330 page_index->page_data = 4331 (uint8_t *)lun->mode_pages.power_subpage; 4332 4333 current_page = (struct copan_power_subpage *) 4334 (page_index->page_data + 4335 (page_index->page_len * 4336 CTL_PAGE_CURRENT)); 4337 saved_page = (struct copan_power_subpage *) 4338 (page_index->page_data + 4339 (page_index->page_len * 4340 CTL_PAGE_SAVED)); 4341 break; 4342 } 4343 case APS_SUBPAGE_CODE: { 4344 struct copan_aps_subpage *current_page, 4345 *saved_page; 4346 4347 // This gets set multiple times but 4348 // it should always be the same. It's 4349 // only done during init so who cares. 4350 index_to_aps_page = i; 4351 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_CURRENT], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 memcpy(&lun->mode_pages.aps_subpage[ 4357 CTL_PAGE_CHANGEABLE], 4358 &aps_page_changeable, 4359 sizeof(aps_page_changeable)); 4360 memcpy(&lun->mode_pages.aps_subpage[ 4361 CTL_PAGE_DEFAULT], 4362 &aps_page_default, 4363 sizeof(aps_page_default)); 4364 memcpy(&lun->mode_pages.aps_subpage[ 4365 CTL_PAGE_SAVED], 4366 &aps_page_default, 4367 sizeof(aps_page_default)); 4368 page_index->page_data = 4369 (uint8_t *)lun->mode_pages.aps_subpage; 4370 4371 current_page = (struct copan_aps_subpage *) 4372 (page_index->page_data + 4373 (page_index->page_len * 4374 CTL_PAGE_CURRENT)); 4375 saved_page = (struct copan_aps_subpage *) 4376 (page_index->page_data + 4377 (page_index->page_len * 4378 CTL_PAGE_SAVED)); 4379 break; 4380 } 4381 case DBGCNF_SUBPAGE_CODE: { 4382 struct copan_debugconf_subpage *current_page, 4383 *saved_page; 4384 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_CURRENT], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 memcpy(&lun->mode_pages.debugconf_subpage[ 4390 CTL_PAGE_CHANGEABLE], 4391 &debugconf_page_changeable, 4392 sizeof(debugconf_page_changeable)); 4393 memcpy(&lun->mode_pages.debugconf_subpage[ 4394 CTL_PAGE_DEFAULT], 4395 &debugconf_page_default, 4396 sizeof(debugconf_page_default)); 4397 memcpy(&lun->mode_pages.debugconf_subpage[ 4398 CTL_PAGE_SAVED], 4399 &debugconf_page_default, 4400 sizeof(debugconf_page_default)); 4401 page_index->page_data = 4402 (uint8_t *)lun->mode_pages.debugconf_subpage; 4403 4404 current_page = (struct copan_debugconf_subpage *) 4405 (page_index->page_data + 4406 (page_index->page_len * 4407 CTL_PAGE_CURRENT)); 4408 saved_page = (struct copan_debugconf_subpage *) 4409 (page_index->page_data + 4410 (page_index->page_len * 4411 CTL_PAGE_SAVED)); 4412 break; 4413 } 4414 default: 4415 panic("invalid subpage value %d", 4416 page_index->subpage); 4417 break; 4418 } 4419 break; 4420 } 4421 default: 4422 panic("invalid page value %d", 4423 page_index->page_code & SMPH_PC_MASK); 4424 break; 4425 } 4426 } 4427 4428 return (CTL_RETVAL_COMPLETE); 4429} 4430 4431/* 4432 * LUN allocation. 4433 * 4434 * Requirements: 4435 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4436 * wants us to allocate the LUN and he can block. 4437 * - ctl_softc is always set 4438 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4439 * 4440 * Returns 0 for success, non-zero (errno) for failure. 4441 */ 4442static int 4443ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4444 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4445{ 4446 struct ctl_lun *nlun, *lun; 4447 struct ctl_port *port; 4448 struct scsi_vpd_id_descriptor *desc; 4449 struct scsi_vpd_id_t10 *t10id; 4450 const char *eui, *naa, *scsiname, *vendor; 4451 int lun_number, i, lun_malloced; 4452 int devidlen, idlen1, idlen2 = 0, len; 4453 4454 if (be_lun == NULL) 4455 return (EINVAL); 4456 4457 /* 4458 * We currently only support Direct Access or Processor LUN types. 4459 */ 4460 switch (be_lun->lun_type) { 4461 case T_DIRECT: 4462 break; 4463 case T_PROCESSOR: 4464 break; 4465 case T_SEQUENTIAL: 4466 case T_CHANGER: 4467 default: 4468 be_lun->lun_config_status(be_lun->be_lun, 4469 CTL_LUN_CONFIG_FAILURE); 4470 break; 4471 } 4472 if (ctl_lun == NULL) { 4473 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4474 lun_malloced = 1; 4475 } else { 4476 lun_malloced = 0; 4477 lun = ctl_lun; 4478 } 4479 4480 memset(lun, 0, sizeof(*lun)); 4481 if (lun_malloced) 4482 lun->flags = CTL_LUN_MALLOCED; 4483 4484 /* Generate LUN ID. */ 4485 devidlen = max(CTL_DEVID_MIN_LEN, 4486 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4487 idlen1 = sizeof(*t10id) + devidlen; 4488 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4489 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4490 if (scsiname != NULL) { 4491 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4492 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4493 } 4494 eui = ctl_get_opt(&be_lun->options, "eui"); 4495 if (eui != NULL) { 4496 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4497 } 4498 naa = ctl_get_opt(&be_lun->options, "naa"); 4499 if (naa != NULL) { 4500 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4501 } 4502 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4503 M_CTL, M_WAITOK | M_ZERO); 4504 lun->lun_devid->len = len; 4505 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4506 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4507 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4508 desc->length = idlen1; 4509 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4510 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4511 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4512 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4513 } else { 4514 strncpy(t10id->vendor, vendor, 4515 min(sizeof(t10id->vendor), strlen(vendor))); 4516 } 4517 strncpy((char *)t10id->vendor_spec_id, 4518 (char *)be_lun->device_id, devidlen); 4519 if (scsiname != NULL) { 4520 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4521 desc->length); 4522 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4523 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4524 SVPD_ID_TYPE_SCSI_NAME; 4525 desc->length = idlen2; 4526 strlcpy(desc->identifier, scsiname, idlen2); 4527 } 4528 if (eui != NULL) { 4529 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4530 desc->length); 4531 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4532 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4533 SVPD_ID_TYPE_EUI64; 4534 desc->length = 8; 4535 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4536 } 4537 if (naa != NULL) { 4538 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4539 desc->length); 4540 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4541 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4542 SVPD_ID_TYPE_NAA; 4543 desc->length = 8; 4544 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4545 } 4546 4547 mtx_lock(&ctl_softc->ctl_lock); 4548 /* 4549 * See if the caller requested a particular LUN number. If so, see 4550 * if it is available. Otherwise, allocate the first available LUN. 4551 */ 4552 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4553 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4554 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4555 mtx_unlock(&ctl_softc->ctl_lock); 4556 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4557 printf("ctl: requested LUN ID %d is higher " 4558 "than CTL_MAX_LUNS - 1 (%d)\n", 4559 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4560 } else { 4561 /* 4562 * XXX KDM return an error, or just assign 4563 * another LUN ID in this case?? 4564 */ 4565 printf("ctl: requested LUN ID %d is already " 4566 "in use\n", be_lun->req_lun_id); 4567 } 4568 if (lun->flags & CTL_LUN_MALLOCED) 4569 free(lun, M_CTL); 4570 be_lun->lun_config_status(be_lun->be_lun, 4571 CTL_LUN_CONFIG_FAILURE); 4572 return (ENOSPC); 4573 } 4574 lun_number = be_lun->req_lun_id; 4575 } else { 4576 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4577 if (lun_number == -1) { 4578 mtx_unlock(&ctl_softc->ctl_lock); 4579 printf("ctl: can't allocate LUN on target %ju, out of " 4580 "LUNs\n", (uintmax_t)target_id.id); 4581 if (lun->flags & CTL_LUN_MALLOCED) 4582 free(lun, M_CTL); 4583 be_lun->lun_config_status(be_lun->be_lun, 4584 CTL_LUN_CONFIG_FAILURE); 4585 return (ENOSPC); 4586 } 4587 } 4588 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4589 4590 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4591 lun->target = target_id; 4592 lun->lun = lun_number; 4593 lun->be_lun = be_lun; 4594 /* 4595 * The processor LUN is always enabled. Disk LUNs come on line 4596 * disabled, and must be enabled by the backend. 4597 */ 4598 lun->flags |= CTL_LUN_DISABLED; 4599 lun->backend = be_lun->be; 4600 be_lun->ctl_lun = lun; 4601 be_lun->lun_id = lun_number; 4602 atomic_add_int(&be_lun->be->num_luns, 1); 4603 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4604 lun->flags |= CTL_LUN_STOPPED; 4605 4606 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4607 lun->flags |= CTL_LUN_INOPERABLE; 4608 4609 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4610 lun->flags |= CTL_LUN_PRIMARY_SC; 4611 4612 lun->ctl_softc = ctl_softc; 4613 TAILQ_INIT(&lun->ooa_queue); 4614 TAILQ_INIT(&lun->blocked_queue); 4615 STAILQ_INIT(&lun->error_list); 4616 ctl_tpc_lun_init(lun); 4617 4618 /* 4619 * Initialize the mode page index. 4620 */ 4621 ctl_init_page_index(lun); 4622 4623 /* 4624 * Set the poweron UA for all initiators on this LUN only. 4625 */ 4626 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4627 lun->pending_ua[i] = CTL_UA_POWERON; 4628 4629 /* 4630 * Now, before we insert this lun on the lun list, set the lun 4631 * inventory changed UA for all other luns. 4632 */ 4633 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4634 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4635 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4636 } 4637 } 4638 4639 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4640 4641 ctl_softc->ctl_luns[lun_number] = lun; 4642 4643 ctl_softc->num_luns++; 4644 4645 /* Setup statistics gathering */ 4646 lun->stats.device_type = be_lun->lun_type; 4647 lun->stats.lun_number = lun_number; 4648 if (lun->stats.device_type == T_DIRECT) 4649 lun->stats.blocksize = be_lun->blocksize; 4650 else 4651 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4652 for (i = 0;i < CTL_MAX_PORTS;i++) 4653 lun->stats.ports[i].targ_port = i; 4654 4655 mtx_unlock(&ctl_softc->ctl_lock); 4656 4657 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4658 4659 /* 4660 * Run through each registered FETD and bring it online if it isn't 4661 * already. Enable the target ID if it hasn't been enabled, and 4662 * enable this particular LUN. 4663 */ 4664 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4665 int retval; 4666 4667 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4668 if (retval != 0) { 4669 printf("ctl_alloc_lun: FETD %s port %d returned error " 4670 "%d for lun_enable on target %ju lun %d\n", 4671 port->port_name, port->targ_port, retval, 4672 (uintmax_t)target_id.id, lun_number); 4673 } else 4674 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4675 } 4676 return (0); 4677} 4678 4679/* 4680 * Delete a LUN. 4681 * Assumptions: 4682 * - LUN has already been marked invalid and any pending I/O has been taken 4683 * care of. 4684 */ 4685static int 4686ctl_free_lun(struct ctl_lun *lun) 4687{ 4688 struct ctl_softc *softc; 4689#if 0 4690 struct ctl_port *port; 4691#endif 4692 struct ctl_lun *nlun; 4693 int i; 4694 4695 softc = lun->ctl_softc; 4696 4697 mtx_assert(&softc->ctl_lock, MA_OWNED); 4698 4699 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4700 4701 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4702 4703 softc->ctl_luns[lun->lun] = NULL; 4704 4705 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4706 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4707 4708 softc->num_luns--; 4709 4710 /* 4711 * XXX KDM this scheme only works for a single target/multiple LUN 4712 * setup. It needs to be revamped for a multiple target scheme. 4713 * 4714 * XXX KDM this results in port->lun_disable() getting called twice, 4715 * once when ctl_disable_lun() is called, and a second time here. 4716 * We really need to re-think the LUN disable semantics. There 4717 * should probably be several steps/levels to LUN removal: 4718 * - disable 4719 * - invalidate 4720 * - free 4721 * 4722 * Right now we only have a disable method when communicating to 4723 * the front end ports, at least for individual LUNs. 4724 */ 4725#if 0 4726 STAILQ_FOREACH(port, &softc->port_list, links) { 4727 int retval; 4728 4729 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4730 lun->lun); 4731 if (retval != 0) { 4732 printf("ctl_free_lun: FETD %s port %d returned error " 4733 "%d for lun_disable on target %ju lun %jd\n", 4734 port->port_name, port->targ_port, retval, 4735 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4736 } 4737 4738 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4739 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4740 4741 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4742 if (retval != 0) { 4743 printf("ctl_free_lun: FETD %s port %d " 4744 "returned error %d for targ_disable on " 4745 "target %ju\n", port->port_name, 4746 port->targ_port, retval, 4747 (uintmax_t)lun->target.id); 4748 } else 4749 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4750 4751 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4752 continue; 4753 4754#if 0 4755 port->port_offline(port->onoff_arg); 4756 port->status &= ~CTL_PORT_STATUS_ONLINE; 4757#endif 4758 } 4759 } 4760#endif 4761 4762 /* 4763 * Tell the backend to free resources, if this LUN has a backend. 4764 */ 4765 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4766 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4767 4768 ctl_tpc_lun_shutdown(lun); 4769 mtx_destroy(&lun->lun_lock); 4770 free(lun->lun_devid, M_CTL); 4771 if (lun->flags & CTL_LUN_MALLOCED) 4772 free(lun, M_CTL); 4773 4774 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4776 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4777 } 4778 } 4779 4780 return (0); 4781} 4782 4783static void 4784ctl_create_lun(struct ctl_be_lun *be_lun) 4785{ 4786 struct ctl_softc *ctl_softc; 4787 4788 ctl_softc = control_softc; 4789 4790 /* 4791 * ctl_alloc_lun() should handle all potential failure cases. 4792 */ 4793 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4794} 4795 4796int 4797ctl_add_lun(struct ctl_be_lun *be_lun) 4798{ 4799 struct ctl_softc *ctl_softc = control_softc; 4800 4801 mtx_lock(&ctl_softc->ctl_lock); 4802 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4803 mtx_unlock(&ctl_softc->ctl_lock); 4804 wakeup(&ctl_softc->pending_lun_queue); 4805 4806 return (0); 4807} 4808 4809int 4810ctl_enable_lun(struct ctl_be_lun *be_lun) 4811{ 4812 struct ctl_softc *ctl_softc; 4813 struct ctl_port *port, *nport; 4814 struct ctl_lun *lun; 4815 int retval; 4816 4817 ctl_softc = control_softc; 4818 4819 lun = (struct ctl_lun *)be_lun->ctl_lun; 4820 4821 mtx_lock(&ctl_softc->ctl_lock); 4822 mtx_lock(&lun->lun_lock); 4823 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4824 /* 4825 * eh? Why did we get called if the LUN is already 4826 * enabled? 4827 */ 4828 mtx_unlock(&lun->lun_lock); 4829 mtx_unlock(&ctl_softc->ctl_lock); 4830 return (0); 4831 } 4832 lun->flags &= ~CTL_LUN_DISABLED; 4833 mtx_unlock(&lun->lun_lock); 4834 4835 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4836 nport = STAILQ_NEXT(port, links); 4837 4838 /* 4839 * Drop the lock while we call the FETD's enable routine. 4840 * This can lead to a callback into CTL (at least in the 4841 * case of the internal initiator frontend. 4842 */ 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4845 mtx_lock(&ctl_softc->ctl_lock); 4846 if (retval != 0) { 4847 printf("%s: FETD %s port %d returned error " 4848 "%d for lun_enable on target %ju lun %jd\n", 4849 __func__, port->port_name, port->targ_port, retval, 4850 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4851 } 4852#if 0 4853 else { 4854 /* NOTE: TODO: why does lun enable affect port status? */ 4855 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4856 } 4857#endif 4858 } 4859 4860 mtx_unlock(&ctl_softc->ctl_lock); 4861 4862 return (0); 4863} 4864 4865int 4866ctl_disable_lun(struct ctl_be_lun *be_lun) 4867{ 4868 struct ctl_softc *ctl_softc; 4869 struct ctl_port *port; 4870 struct ctl_lun *lun; 4871 int retval; 4872 4873 ctl_softc = control_softc; 4874 4875 lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&ctl_softc->ctl_lock); 4878 mtx_lock(&lun->lun_lock); 4879 if (lun->flags & CTL_LUN_DISABLED) { 4880 mtx_unlock(&lun->lun_lock); 4881 mtx_unlock(&ctl_softc->ctl_lock); 4882 return (0); 4883 } 4884 lun->flags |= CTL_LUN_DISABLED; 4885 mtx_unlock(&lun->lun_lock); 4886 4887 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4888 mtx_unlock(&ctl_softc->ctl_lock); 4889 /* 4890 * Drop the lock before we call the frontend's disable 4891 * routine, to avoid lock order reversals. 4892 * 4893 * XXX KDM what happens if the frontend list changes while 4894 * we're traversing it? It's unlikely, but should be handled. 4895 */ 4896 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4897 lun->lun); 4898 mtx_lock(&ctl_softc->ctl_lock); 4899 if (retval != 0) { 4900 printf("ctl_alloc_lun: FETD %s port %d returned error " 4901 "%d for lun_disable on target %ju lun %jd\n", 4902 port->port_name, port->targ_port, retval, 4903 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4904 } 4905 } 4906 4907 mtx_unlock(&ctl_softc->ctl_lock); 4908 4909 return (0); 4910} 4911 4912int 4913ctl_start_lun(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_softc *ctl_softc; 4916 struct ctl_lun *lun; 4917 4918 ctl_softc = control_softc; 4919 4920 lun = (struct ctl_lun *)be_lun->ctl_lun; 4921 4922 mtx_lock(&lun->lun_lock); 4923 lun->flags &= ~CTL_LUN_STOPPED; 4924 mtx_unlock(&lun->lun_lock); 4925 4926 return (0); 4927} 4928 4929int 4930ctl_stop_lun(struct ctl_be_lun *be_lun) 4931{ 4932 struct ctl_softc *ctl_softc; 4933 struct ctl_lun *lun; 4934 4935 ctl_softc = control_softc; 4936 4937 lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 4939 mtx_lock(&lun->lun_lock); 4940 lun->flags |= CTL_LUN_STOPPED; 4941 mtx_unlock(&lun->lun_lock); 4942 4943 return (0); 4944} 4945 4946int 4947ctl_lun_offline(struct ctl_be_lun *be_lun) 4948{ 4949 struct ctl_softc *ctl_softc; 4950 struct ctl_lun *lun; 4951 4952 ctl_softc = control_softc; 4953 4954 lun = (struct ctl_lun *)be_lun->ctl_lun; 4955 4956 mtx_lock(&lun->lun_lock); 4957 lun->flags |= CTL_LUN_OFFLINE; 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961} 4962 4963int 4964ctl_lun_online(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_lun *lun; 4968 4969 ctl_softc = control_softc; 4970 4971 lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 lun->flags &= ~CTL_LUN_OFFLINE; 4975 mtx_unlock(&lun->lun_lock); 4976 4977 return (0); 4978} 4979 4980int 4981ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_softc *ctl_softc; 4984 struct ctl_lun *lun; 4985 4986 ctl_softc = control_softc; 4987 4988 lun = (struct ctl_lun *)be_lun->ctl_lun; 4989 4990 mtx_lock(&lun->lun_lock); 4991 4992 /* 4993 * The LUN needs to be disabled before it can be marked invalid. 4994 */ 4995 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4996 mtx_unlock(&lun->lun_lock); 4997 return (-1); 4998 } 4999 /* 5000 * Mark the LUN invalid. 5001 */ 5002 lun->flags |= CTL_LUN_INVALID; 5003 5004 /* 5005 * If there is nothing in the OOA queue, go ahead and free the LUN. 5006 * If we have something in the OOA queue, we'll free it when the 5007 * last I/O completes. 5008 */ 5009 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5010 mtx_unlock(&lun->lun_lock); 5011 mtx_lock(&ctl_softc->ctl_lock); 5012 ctl_free_lun(lun); 5013 mtx_unlock(&ctl_softc->ctl_lock); 5014 } else 5015 mtx_unlock(&lun->lun_lock); 5016 5017 return (0); 5018} 5019 5020int 5021ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5022{ 5023 struct ctl_softc *ctl_softc; 5024 struct ctl_lun *lun; 5025 5026 ctl_softc = control_softc; 5027 lun = (struct ctl_lun *)be_lun->ctl_lun; 5028 5029 mtx_lock(&lun->lun_lock); 5030 lun->flags |= CTL_LUN_INOPERABLE; 5031 mtx_unlock(&lun->lun_lock); 5032 5033 return (0); 5034} 5035 5036int 5037ctl_lun_operable(struct ctl_be_lun *be_lun) 5038{ 5039 struct ctl_softc *ctl_softc; 5040 struct ctl_lun *lun; 5041 5042 ctl_softc = control_softc; 5043 lun = (struct ctl_lun *)be_lun->ctl_lun; 5044 5045 mtx_lock(&lun->lun_lock); 5046 lun->flags &= ~CTL_LUN_INOPERABLE; 5047 mtx_unlock(&lun->lun_lock); 5048 5049 return (0); 5050} 5051 5052int 5053ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5054 int lock) 5055{ 5056 struct ctl_softc *softc; 5057 struct ctl_lun *lun; 5058 struct copan_aps_subpage *current_sp; 5059 struct ctl_page_index *page_index; 5060 int i; 5061 5062 softc = control_softc; 5063 5064 mtx_lock(&softc->ctl_lock); 5065 5066 lun = (struct ctl_lun *)be_lun->ctl_lun; 5067 mtx_lock(&lun->lun_lock); 5068 5069 page_index = NULL; 5070 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5071 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5072 APS_PAGE_CODE) 5073 continue; 5074 5075 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5076 continue; 5077 page_index = &lun->mode_pages.index[i]; 5078 } 5079 5080 if (page_index == NULL) { 5081 mtx_unlock(&lun->lun_lock); 5082 mtx_unlock(&softc->ctl_lock); 5083 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5084 (uintmax_t)lun->lun); 5085 return (1); 5086 } 5087#if 0 5088 if ((softc->aps_locked_lun != 0) 5089 && (softc->aps_locked_lun != lun->lun)) { 5090 printf("%s: attempt to lock LUN %llu when %llu is already " 5091 "locked\n"); 5092 mtx_unlock(&lun->lun_lock); 5093 mtx_unlock(&softc->ctl_lock); 5094 return (1); 5095 } 5096#endif 5097 5098 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5099 (page_index->page_len * CTL_PAGE_CURRENT)); 5100 5101 if (lock != 0) { 5102 current_sp->lock_active = APS_LOCK_ACTIVE; 5103 softc->aps_locked_lun = lun->lun; 5104 } else { 5105 current_sp->lock_active = 0; 5106 softc->aps_locked_lun = 0; 5107 } 5108 5109 5110 /* 5111 * If we're in HA mode, try to send the lock message to the other 5112 * side. 5113 */ 5114 if (ctl_is_single == 0) { 5115 int isc_retval; 5116 union ctl_ha_msg lock_msg; 5117 5118 lock_msg.hdr.nexus = *nexus; 5119 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5120 if (lock != 0) 5121 lock_msg.aps.lock_flag = 1; 5122 else 5123 lock_msg.aps.lock_flag = 0; 5124 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5125 sizeof(lock_msg), 0); 5126 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5127 printf("%s: APS (lock=%d) error returned from " 5128 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5129 mtx_unlock(&lun->lun_lock); 5130 mtx_unlock(&softc->ctl_lock); 5131 return (1); 5132 } 5133 } 5134 5135 mtx_unlock(&lun->lun_lock); 5136 mtx_unlock(&softc->ctl_lock); 5137 5138 return (0); 5139} 5140 5141void 5142ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5143{ 5144 struct ctl_lun *lun; 5145 struct ctl_softc *softc; 5146 int i; 5147 5148 softc = control_softc; 5149 5150 lun = (struct ctl_lun *)be_lun->ctl_lun; 5151 5152 mtx_lock(&lun->lun_lock); 5153 5154 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5155 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5156 5157 mtx_unlock(&lun->lun_lock); 5158} 5159 5160/* 5161 * Backend "memory move is complete" callback for requests that never 5162 * make it down to say RAIDCore's configuration code. 5163 */ 5164int 5165ctl_config_move_done(union ctl_io *io) 5166{ 5167 int retval; 5168 5169 retval = CTL_RETVAL_COMPLETE; 5170 5171 5172 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5173 /* 5174 * XXX KDM this shouldn't happen, but what if it does? 5175 */ 5176 if (io->io_hdr.io_type != CTL_IO_SCSI) 5177 panic("I/O type isn't CTL_IO_SCSI!"); 5178 5179 if ((io->io_hdr.port_status == 0) 5180 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5181 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5182 io->io_hdr.status = CTL_SUCCESS; 5183 else if ((io->io_hdr.port_status != 0) 5184 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5185 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5186 /* 5187 * For hardware error sense keys, the sense key 5188 * specific value is defined to be a retry count, 5189 * but we use it to pass back an internal FETD 5190 * error code. XXX KDM Hopefully the FETD is only 5191 * using 16 bits for an error code, since that's 5192 * all the space we have in the sks field. 5193 */ 5194 ctl_set_internal_failure(&io->scsiio, 5195 /*sks_valid*/ 1, 5196 /*retry_count*/ 5197 io->io_hdr.port_status); 5198 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5199 free(io->scsiio.kern_data_ptr, M_CTL); 5200 ctl_done(io); 5201 goto bailout; 5202 } 5203 5204 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5205 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5206 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5207 /* 5208 * XXX KDM just assuming a single pointer here, and not a 5209 * S/G list. If we start using S/G lists for config data, 5210 * we'll need to know how to clean them up here as well. 5211 */ 5212 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5213 free(io->scsiio.kern_data_ptr, M_CTL); 5214 /* Hopefully the user has already set the status... */ 5215 ctl_done(io); 5216 } else { 5217 /* 5218 * XXX KDM now we need to continue data movement. Some 5219 * options: 5220 * - call ctl_scsiio() again? We don't do this for data 5221 * writes, because for those at least we know ahead of 5222 * time where the write will go and how long it is. For 5223 * config writes, though, that information is largely 5224 * contained within the write itself, thus we need to 5225 * parse out the data again. 5226 * 5227 * - Call some other function once the data is in? 5228 */ 5229 5230 /* 5231 * XXX KDM call ctl_scsiio() again for now, and check flag 5232 * bits to see whether we're allocated or not. 5233 */ 5234 retval = ctl_scsiio(&io->scsiio); 5235 } 5236bailout: 5237 return (retval); 5238} 5239 5240/* 5241 * This gets called by a backend driver when it is done with a 5242 * data_submit method. 5243 */ 5244void 5245ctl_data_submit_done(union ctl_io *io) 5246{ 5247 /* 5248 * If the IO_CONT flag is set, we need to call the supplied 5249 * function to continue processing the I/O, instead of completing 5250 * the I/O just yet. 5251 * 5252 * If there is an error, though, we don't want to keep processing. 5253 * Instead, just send status back to the initiator. 5254 */ 5255 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5256 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5257 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5258 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5259 io->scsiio.io_cont(io); 5260 return; 5261 } 5262 ctl_done(io); 5263} 5264 5265/* 5266 * This gets called by a backend driver when it is done with a 5267 * configuration write. 5268 */ 5269void 5270ctl_config_write_done(union ctl_io *io) 5271{ 5272 uint8_t *buf; 5273 5274 /* 5275 * If the IO_CONT flag is set, we need to call the supplied 5276 * function to continue processing the I/O, instead of completing 5277 * the I/O just yet. 5278 * 5279 * If there is an error, though, we don't want to keep processing. 5280 * Instead, just send status back to the initiator. 5281 */ 5282 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5283 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5284 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5285 io->scsiio.io_cont(io); 5286 return; 5287 } 5288 /* 5289 * Since a configuration write can be done for commands that actually 5290 * have data allocated, like write buffer, and commands that have 5291 * no data, like start/stop unit, we need to check here. 5292 */ 5293 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5294 buf = io->scsiio.kern_data_ptr; 5295 else 5296 buf = NULL; 5297 ctl_done(io); 5298 if (buf) 5299 free(buf, M_CTL); 5300} 5301 5302/* 5303 * SCSI release command. 5304 */ 5305int 5306ctl_scsi_release(struct ctl_scsiio *ctsio) 5307{ 5308 int length, longid, thirdparty_id, resv_id; 5309 struct ctl_softc *ctl_softc; 5310 struct ctl_lun *lun; 5311 5312 length = 0; 5313 resv_id = 0; 5314 5315 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5316 5317 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5318 ctl_softc = control_softc; 5319 5320 switch (ctsio->cdb[0]) { 5321 case RELEASE_10: { 5322 struct scsi_release_10 *cdb; 5323 5324 cdb = (struct scsi_release_10 *)ctsio->cdb; 5325 5326 if (cdb->byte2 & SR10_LONGID) 5327 longid = 1; 5328 else 5329 thirdparty_id = cdb->thirdparty_id; 5330 5331 resv_id = cdb->resv_id; 5332 length = scsi_2btoul(cdb->length); 5333 break; 5334 } 5335 } 5336 5337 5338 /* 5339 * XXX KDM right now, we only support LUN reservation. We don't 5340 * support 3rd party reservations, or extent reservations, which 5341 * might actually need the parameter list. If we've gotten this 5342 * far, we've got a LUN reservation. Anything else got kicked out 5343 * above. So, according to SPC, ignore the length. 5344 */ 5345 length = 0; 5346 5347 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5348 && (length > 0)) { 5349 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5350 ctsio->kern_data_len = length; 5351 ctsio->kern_total_len = length; 5352 ctsio->kern_data_resid = 0; 5353 ctsio->kern_rel_offset = 0; 5354 ctsio->kern_sg_entries = 0; 5355 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5356 ctsio->be_move_done = ctl_config_move_done; 5357 ctl_datamove((union ctl_io *)ctsio); 5358 5359 return (CTL_RETVAL_COMPLETE); 5360 } 5361 5362 if (length > 0) 5363 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5364 5365 mtx_lock(&lun->lun_lock); 5366 5367 /* 5368 * According to SPC, it is not an error for an intiator to attempt 5369 * to release a reservation on a LUN that isn't reserved, or that 5370 * is reserved by another initiator. The reservation can only be 5371 * released, though, by the initiator who made it or by one of 5372 * several reset type events. 5373 */ 5374 if (lun->flags & CTL_LUN_RESERVED) { 5375 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5376 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5377 && (ctsio->io_hdr.nexus.targ_target.id == 5378 lun->rsv_nexus.targ_target.id)) { 5379 lun->flags &= ~CTL_LUN_RESERVED; 5380 } 5381 } 5382 5383 mtx_unlock(&lun->lun_lock); 5384 5385 ctsio->scsi_status = SCSI_STATUS_OK; 5386 ctsio->io_hdr.status = CTL_SUCCESS; 5387 5388 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5389 free(ctsio->kern_data_ptr, M_CTL); 5390 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5391 } 5392 5393 ctl_done((union ctl_io *)ctsio); 5394 return (CTL_RETVAL_COMPLETE); 5395} 5396 5397int 5398ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5399{ 5400 int extent, thirdparty, longid; 5401 int resv_id, length; 5402 uint64_t thirdparty_id; 5403 struct ctl_softc *ctl_softc; 5404 struct ctl_lun *lun; 5405 5406 extent = 0; 5407 thirdparty = 0; 5408 longid = 0; 5409 resv_id = 0; 5410 length = 0; 5411 thirdparty_id = 0; 5412 5413 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5414 5415 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5416 ctl_softc = control_softc; 5417 5418 switch (ctsio->cdb[0]) { 5419 case RESERVE_10: { 5420 struct scsi_reserve_10 *cdb; 5421 5422 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5423 5424 if (cdb->byte2 & SR10_LONGID) 5425 longid = 1; 5426 else 5427 thirdparty_id = cdb->thirdparty_id; 5428 5429 resv_id = cdb->resv_id; 5430 length = scsi_2btoul(cdb->length); 5431 break; 5432 } 5433 } 5434 5435 /* 5436 * XXX KDM right now, we only support LUN reservation. We don't 5437 * support 3rd party reservations, or extent reservations, which 5438 * might actually need the parameter list. If we've gotten this 5439 * far, we've got a LUN reservation. Anything else got kicked out 5440 * above. So, according to SPC, ignore the length. 5441 */ 5442 length = 0; 5443 5444 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5445 && (length > 0)) { 5446 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5447 ctsio->kern_data_len = length; 5448 ctsio->kern_total_len = length; 5449 ctsio->kern_data_resid = 0; 5450 ctsio->kern_rel_offset = 0; 5451 ctsio->kern_sg_entries = 0; 5452 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5453 ctsio->be_move_done = ctl_config_move_done; 5454 ctl_datamove((union ctl_io *)ctsio); 5455 5456 return (CTL_RETVAL_COMPLETE); 5457 } 5458 5459 if (length > 0) 5460 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5461 5462 mtx_lock(&lun->lun_lock); 5463 if (lun->flags & CTL_LUN_RESERVED) { 5464 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5465 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5466 || (ctsio->io_hdr.nexus.targ_target.id != 5467 lun->rsv_nexus.targ_target.id)) { 5468 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5469 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5470 goto bailout; 5471 } 5472 } 5473 5474 lun->flags |= CTL_LUN_RESERVED; 5475 lun->rsv_nexus = ctsio->io_hdr.nexus; 5476 5477 ctsio->scsi_status = SCSI_STATUS_OK; 5478 ctsio->io_hdr.status = CTL_SUCCESS; 5479 5480bailout: 5481 mtx_unlock(&lun->lun_lock); 5482 5483 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5484 free(ctsio->kern_data_ptr, M_CTL); 5485 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5486 } 5487 5488 ctl_done((union ctl_io *)ctsio); 5489 return (CTL_RETVAL_COMPLETE); 5490} 5491 5492int 5493ctl_start_stop(struct ctl_scsiio *ctsio) 5494{ 5495 struct scsi_start_stop_unit *cdb; 5496 struct ctl_lun *lun; 5497 struct ctl_softc *ctl_softc; 5498 int retval; 5499 5500 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5501 5502 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5503 ctl_softc = control_softc; 5504 retval = 0; 5505 5506 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5507 5508 /* 5509 * XXX KDM 5510 * We don't support the immediate bit on a stop unit. In order to 5511 * do that, we would need to code up a way to know that a stop is 5512 * pending, and hold off any new commands until it completes, one 5513 * way or another. Then we could accept or reject those commands 5514 * depending on its status. We would almost need to do the reverse 5515 * of what we do below for an immediate start -- return the copy of 5516 * the ctl_io to the FETD with status to send to the host (and to 5517 * free the copy!) and then free the original I/O once the stop 5518 * actually completes. That way, the OOA queue mechanism can work 5519 * to block commands that shouldn't proceed. Another alternative 5520 * would be to put the copy in the queue in place of the original, 5521 * and return the original back to the caller. That could be 5522 * slightly safer.. 5523 */ 5524 if ((cdb->byte2 & SSS_IMMED) 5525 && ((cdb->how & SSS_START) == 0)) { 5526 ctl_set_invalid_field(ctsio, 5527 /*sks_valid*/ 1, 5528 /*command*/ 1, 5529 /*field*/ 1, 5530 /*bit_valid*/ 1, 5531 /*bit*/ 0); 5532 ctl_done((union ctl_io *)ctsio); 5533 return (CTL_RETVAL_COMPLETE); 5534 } 5535 5536 if ((lun->flags & CTL_LUN_PR_RESERVED) 5537 && ((cdb->how & SSS_START)==0)) { 5538 uint32_t residx; 5539 5540 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5541 if (!lun->per_res[residx].registered 5542 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5543 5544 ctl_set_reservation_conflict(ctsio); 5545 ctl_done((union ctl_io *)ctsio); 5546 return (CTL_RETVAL_COMPLETE); 5547 } 5548 } 5549 5550 /* 5551 * If there is no backend on this device, we can't start or stop 5552 * it. In theory we shouldn't get any start/stop commands in the 5553 * first place at this level if the LUN doesn't have a backend. 5554 * That should get stopped by the command decode code. 5555 */ 5556 if (lun->backend == NULL) { 5557 ctl_set_invalid_opcode(ctsio); 5558 ctl_done((union ctl_io *)ctsio); 5559 return (CTL_RETVAL_COMPLETE); 5560 } 5561 5562 /* 5563 * XXX KDM Copan-specific offline behavior. 5564 * Figure out a reasonable way to port this? 5565 */ 5566#ifdef NEEDTOPORT 5567 mtx_lock(&lun->lun_lock); 5568 5569 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5570 && (lun->flags & CTL_LUN_OFFLINE)) { 5571 /* 5572 * If the LUN is offline, and the on/offline bit isn't set, 5573 * reject the start or stop. Otherwise, let it through. 5574 */ 5575 mtx_unlock(&lun->lun_lock); 5576 ctl_set_lun_not_ready(ctsio); 5577 ctl_done((union ctl_io *)ctsio); 5578 } else { 5579 mtx_unlock(&lun->lun_lock); 5580#endif /* NEEDTOPORT */ 5581 /* 5582 * This could be a start or a stop when we're online, 5583 * or a stop/offline or start/online. A start or stop when 5584 * we're offline is covered in the case above. 5585 */ 5586 /* 5587 * In the non-immediate case, we send the request to 5588 * the backend and return status to the user when 5589 * it is done. 5590 * 5591 * In the immediate case, we allocate a new ctl_io 5592 * to hold a copy of the request, and send that to 5593 * the backend. We then set good status on the 5594 * user's request and return it immediately. 5595 */ 5596 if (cdb->byte2 & SSS_IMMED) { 5597 union ctl_io *new_io; 5598 5599 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5600 if (new_io == NULL) { 5601 ctl_set_busy(ctsio); 5602 ctl_done((union ctl_io *)ctsio); 5603 } else { 5604 ctl_copy_io((union ctl_io *)ctsio, 5605 new_io); 5606 retval = lun->backend->config_write(new_io); 5607 ctl_set_success(ctsio); 5608 ctl_done((union ctl_io *)ctsio); 5609 } 5610 } else { 5611 retval = lun->backend->config_write( 5612 (union ctl_io *)ctsio); 5613 } 5614#ifdef NEEDTOPORT 5615 } 5616#endif 5617 return (retval); 5618} 5619 5620/* 5621 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5622 * we don't really do anything with the LBA and length fields if the user 5623 * passes them in. Instead we'll just flush out the cache for the entire 5624 * LUN. 5625 */ 5626int 5627ctl_sync_cache(struct ctl_scsiio *ctsio) 5628{ 5629 struct ctl_lun *lun; 5630 struct ctl_softc *ctl_softc; 5631 uint64_t starting_lba; 5632 uint32_t block_count; 5633 int retval; 5634 5635 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5636 5637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5638 ctl_softc = control_softc; 5639 retval = 0; 5640 5641 switch (ctsio->cdb[0]) { 5642 case SYNCHRONIZE_CACHE: { 5643 struct scsi_sync_cache *cdb; 5644 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5645 5646 starting_lba = scsi_4btoul(cdb->begin_lba); 5647 block_count = scsi_2btoul(cdb->lb_count); 5648 break; 5649 } 5650 case SYNCHRONIZE_CACHE_16: { 5651 struct scsi_sync_cache_16 *cdb; 5652 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5653 5654 starting_lba = scsi_8btou64(cdb->begin_lba); 5655 block_count = scsi_4btoul(cdb->lb_count); 5656 break; 5657 } 5658 default: 5659 ctl_set_invalid_opcode(ctsio); 5660 ctl_done((union ctl_io *)ctsio); 5661 goto bailout; 5662 break; /* NOTREACHED */ 5663 } 5664 5665 /* 5666 * We check the LBA and length, but don't do anything with them. 5667 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5668 * get flushed. This check will just help satisfy anyone who wants 5669 * to see an error for an out of range LBA. 5670 */ 5671 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5672 ctl_set_lba_out_of_range(ctsio); 5673 ctl_done((union ctl_io *)ctsio); 5674 goto bailout; 5675 } 5676 5677 /* 5678 * If this LUN has no backend, we can't flush the cache anyway. 5679 */ 5680 if (lun->backend == NULL) { 5681 ctl_set_invalid_opcode(ctsio); 5682 ctl_done((union ctl_io *)ctsio); 5683 goto bailout; 5684 } 5685 5686 /* 5687 * Check to see whether we're configured to send the SYNCHRONIZE 5688 * CACHE command directly to the back end. 5689 */ 5690 mtx_lock(&lun->lun_lock); 5691 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5692 && (++(lun->sync_count) >= lun->sync_interval)) { 5693 lun->sync_count = 0; 5694 mtx_unlock(&lun->lun_lock); 5695 retval = lun->backend->config_write((union ctl_io *)ctsio); 5696 } else { 5697 mtx_unlock(&lun->lun_lock); 5698 ctl_set_success(ctsio); 5699 ctl_done((union ctl_io *)ctsio); 5700 } 5701 5702bailout: 5703 5704 return (retval); 5705} 5706 5707int 5708ctl_format(struct ctl_scsiio *ctsio) 5709{ 5710 struct scsi_format *cdb; 5711 struct ctl_lun *lun; 5712 struct ctl_softc *ctl_softc; 5713 int length, defect_list_len; 5714 5715 CTL_DEBUG_PRINT(("ctl_format\n")); 5716 5717 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5718 ctl_softc = control_softc; 5719 5720 cdb = (struct scsi_format *)ctsio->cdb; 5721 5722 length = 0; 5723 if (cdb->byte2 & SF_FMTDATA) { 5724 if (cdb->byte2 & SF_LONGLIST) 5725 length = sizeof(struct scsi_format_header_long); 5726 else 5727 length = sizeof(struct scsi_format_header_short); 5728 } 5729 5730 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5731 && (length > 0)) { 5732 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5733 ctsio->kern_data_len = length; 5734 ctsio->kern_total_len = length; 5735 ctsio->kern_data_resid = 0; 5736 ctsio->kern_rel_offset = 0; 5737 ctsio->kern_sg_entries = 0; 5738 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5739 ctsio->be_move_done = ctl_config_move_done; 5740 ctl_datamove((union ctl_io *)ctsio); 5741 5742 return (CTL_RETVAL_COMPLETE); 5743 } 5744 5745 defect_list_len = 0; 5746 5747 if (cdb->byte2 & SF_FMTDATA) { 5748 if (cdb->byte2 & SF_LONGLIST) { 5749 struct scsi_format_header_long *header; 5750 5751 header = (struct scsi_format_header_long *) 5752 ctsio->kern_data_ptr; 5753 5754 defect_list_len = scsi_4btoul(header->defect_list_len); 5755 if (defect_list_len != 0) { 5756 ctl_set_invalid_field(ctsio, 5757 /*sks_valid*/ 1, 5758 /*command*/ 0, 5759 /*field*/ 2, 5760 /*bit_valid*/ 0, 5761 /*bit*/ 0); 5762 goto bailout; 5763 } 5764 } else { 5765 struct scsi_format_header_short *header; 5766 5767 header = (struct scsi_format_header_short *) 5768 ctsio->kern_data_ptr; 5769 5770 defect_list_len = scsi_2btoul(header->defect_list_len); 5771 if (defect_list_len != 0) { 5772 ctl_set_invalid_field(ctsio, 5773 /*sks_valid*/ 1, 5774 /*command*/ 0, 5775 /*field*/ 2, 5776 /*bit_valid*/ 0, 5777 /*bit*/ 0); 5778 goto bailout; 5779 } 5780 } 5781 } 5782 5783 /* 5784 * The format command will clear out the "Medium format corrupted" 5785 * status if set by the configuration code. That status is really 5786 * just a way to notify the host that we have lost the media, and 5787 * get them to issue a command that will basically make them think 5788 * they're blowing away the media. 5789 */ 5790 mtx_lock(&lun->lun_lock); 5791 lun->flags &= ~CTL_LUN_INOPERABLE; 5792 mtx_unlock(&lun->lun_lock); 5793 5794 ctsio->scsi_status = SCSI_STATUS_OK; 5795 ctsio->io_hdr.status = CTL_SUCCESS; 5796bailout: 5797 5798 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5799 free(ctsio->kern_data_ptr, M_CTL); 5800 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5801 } 5802 5803 ctl_done((union ctl_io *)ctsio); 5804 return (CTL_RETVAL_COMPLETE); 5805} 5806 5807int 5808ctl_read_buffer(struct ctl_scsiio *ctsio) 5809{ 5810 struct scsi_read_buffer *cdb; 5811 struct ctl_lun *lun; 5812 int buffer_offset, len; 5813 static uint8_t descr[4]; 5814 static uint8_t echo_descr[4] = { 0 }; 5815 5816 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5817 5818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5819 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5820 5821 if (lun->flags & CTL_LUN_PR_RESERVED) { 5822 uint32_t residx; 5823 5824 /* 5825 * XXX KDM need a lock here. 5826 */ 5827 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5828 if ((lun->res_type == SPR_TYPE_EX_AC 5829 && residx != lun->pr_res_idx) 5830 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5831 || lun->res_type == SPR_TYPE_EX_AC_AR) 5832 && !lun->per_res[residx].registered)) { 5833 ctl_set_reservation_conflict(ctsio); 5834 ctl_done((union ctl_io *)ctsio); 5835 return (CTL_RETVAL_COMPLETE); 5836 } 5837 } 5838 5839 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5840 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5841 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5842 ctl_set_invalid_field(ctsio, 5843 /*sks_valid*/ 1, 5844 /*command*/ 1, 5845 /*field*/ 1, 5846 /*bit_valid*/ 1, 5847 /*bit*/ 4); 5848 ctl_done((union ctl_io *)ctsio); 5849 return (CTL_RETVAL_COMPLETE); 5850 } 5851 5852 len = scsi_3btoul(cdb->length); 5853 buffer_offset = scsi_3btoul(cdb->offset); 5854 5855 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5856 ctl_set_invalid_field(ctsio, 5857 /*sks_valid*/ 1, 5858 /*command*/ 1, 5859 /*field*/ 6, 5860 /*bit_valid*/ 0, 5861 /*bit*/ 0); 5862 ctl_done((union ctl_io *)ctsio); 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5867 descr[0] = 0; 5868 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5869 ctsio->kern_data_ptr = descr; 5870 len = min(len, sizeof(descr)); 5871 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5872 ctsio->kern_data_ptr = echo_descr; 5873 len = min(len, sizeof(echo_descr)); 5874 } else 5875 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5876 ctsio->kern_data_len = len; 5877 ctsio->kern_total_len = len; 5878 ctsio->kern_data_resid = 0; 5879 ctsio->kern_rel_offset = 0; 5880 ctsio->kern_sg_entries = 0; 5881 ctsio->be_move_done = ctl_config_move_done; 5882 ctl_datamove((union ctl_io *)ctsio); 5883 5884 return (CTL_RETVAL_COMPLETE); 5885} 5886 5887int 5888ctl_write_buffer(struct ctl_scsiio *ctsio) 5889{ 5890 struct scsi_write_buffer *cdb; 5891 struct ctl_lun *lun; 5892 int buffer_offset, len; 5893 5894 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5895 5896 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5897 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5898 5899 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5900 ctl_set_invalid_field(ctsio, 5901 /*sks_valid*/ 1, 5902 /*command*/ 1, 5903 /*field*/ 1, 5904 /*bit_valid*/ 1, 5905 /*bit*/ 4); 5906 ctl_done((union ctl_io *)ctsio); 5907 return (CTL_RETVAL_COMPLETE); 5908 } 5909 5910 len = scsi_3btoul(cdb->length); 5911 buffer_offset = scsi_3btoul(cdb->offset); 5912 5913 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5914 ctl_set_invalid_field(ctsio, 5915 /*sks_valid*/ 1, 5916 /*command*/ 1, 5917 /*field*/ 6, 5918 /*bit_valid*/ 0, 5919 /*bit*/ 0); 5920 ctl_done((union ctl_io *)ctsio); 5921 return (CTL_RETVAL_COMPLETE); 5922 } 5923 5924 /* 5925 * If we've got a kernel request that hasn't been malloced yet, 5926 * malloc it and tell the caller the data buffer is here. 5927 */ 5928 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5929 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5930 ctsio->kern_data_len = len; 5931 ctsio->kern_total_len = len; 5932 ctsio->kern_data_resid = 0; 5933 ctsio->kern_rel_offset = 0; 5934 ctsio->kern_sg_entries = 0; 5935 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5936 ctsio->be_move_done = ctl_config_move_done; 5937 ctl_datamove((union ctl_io *)ctsio); 5938 5939 return (CTL_RETVAL_COMPLETE); 5940 } 5941 5942 ctl_done((union ctl_io *)ctsio); 5943 5944 return (CTL_RETVAL_COMPLETE); 5945} 5946 5947int 5948ctl_write_same(struct ctl_scsiio *ctsio) 5949{ 5950 struct ctl_lun *lun; 5951 struct ctl_lba_len_flags *lbalen; 5952 uint64_t lba; 5953 uint32_t num_blocks; 5954 int len, retval; 5955 uint8_t byte2; 5956 5957 retval = CTL_RETVAL_COMPLETE; 5958 5959 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5960 5961 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5962 5963 switch (ctsio->cdb[0]) { 5964 case WRITE_SAME_10: { 5965 struct scsi_write_same_10 *cdb; 5966 5967 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5968 5969 lba = scsi_4btoul(cdb->addr); 5970 num_blocks = scsi_2btoul(cdb->length); 5971 byte2 = cdb->byte2; 5972 break; 5973 } 5974 case WRITE_SAME_16: { 5975 struct scsi_write_same_16 *cdb; 5976 5977 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5978 5979 lba = scsi_8btou64(cdb->addr); 5980 num_blocks = scsi_4btoul(cdb->length); 5981 byte2 = cdb->byte2; 5982 break; 5983 } 5984 default: 5985 /* 5986 * We got a command we don't support. This shouldn't 5987 * happen, commands should be filtered out above us. 5988 */ 5989 ctl_set_invalid_opcode(ctsio); 5990 ctl_done((union ctl_io *)ctsio); 5991 5992 return (CTL_RETVAL_COMPLETE); 5993 break; /* NOTREACHED */ 5994 } 5995 5996 /* NDOB flag can be used only together with UNMAP */ 5997 if ((byte2 & (SWS_NDOB | SWS_UNMAP)) == SWS_NDOB) { 5998 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5999 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6000 ctl_done((union ctl_io *)ctsio); 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 6004 /* 6005 * The first check is to make sure we're in bounds, the second 6006 * check is to catch wrap-around problems. If the lba + num blocks 6007 * is less than the lba, then we've wrapped around and the block 6008 * range is invalid anyway. 6009 */ 6010 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6011 || ((lba + num_blocks) < lba)) { 6012 ctl_set_lba_out_of_range(ctsio); 6013 ctl_done((union ctl_io *)ctsio); 6014 return (CTL_RETVAL_COMPLETE); 6015 } 6016 6017 /* Zero number of blocks means "to the last logical block" */ 6018 if (num_blocks == 0) { 6019 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6020 ctl_set_invalid_field(ctsio, 6021 /*sks_valid*/ 0, 6022 /*command*/ 1, 6023 /*field*/ 0, 6024 /*bit_valid*/ 0, 6025 /*bit*/ 0); 6026 ctl_done((union ctl_io *)ctsio); 6027 return (CTL_RETVAL_COMPLETE); 6028 } 6029 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6030 } 6031 6032 len = lun->be_lun->blocksize; 6033 6034 /* 6035 * If we've got a kernel request that hasn't been malloced yet, 6036 * malloc it and tell the caller the data buffer is here. 6037 */ 6038 if ((byte2 & SWS_NDOB) == 0 && 6039 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6040 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6041 ctsio->kern_data_len = len; 6042 ctsio->kern_total_len = len; 6043 ctsio->kern_data_resid = 0; 6044 ctsio->kern_rel_offset = 0; 6045 ctsio->kern_sg_entries = 0; 6046 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6047 ctsio->be_move_done = ctl_config_move_done; 6048 ctl_datamove((union ctl_io *)ctsio); 6049 6050 return (CTL_RETVAL_COMPLETE); 6051 } 6052 6053 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6054 lbalen->lba = lba; 6055 lbalen->len = num_blocks; 6056 lbalen->flags = byte2; 6057 retval = lun->backend->config_write((union ctl_io *)ctsio); 6058 6059 return (retval); 6060} 6061 6062int 6063ctl_unmap(struct ctl_scsiio *ctsio) 6064{ 6065 struct ctl_lun *lun; 6066 struct scsi_unmap *cdb; 6067 struct ctl_ptr_len_flags *ptrlen; 6068 struct scsi_unmap_header *hdr; 6069 struct scsi_unmap_desc *buf, *end, *range; 6070 uint64_t lba; 6071 uint32_t num_blocks; 6072 int len, retval; 6073 uint8_t byte2; 6074 6075 retval = CTL_RETVAL_COMPLETE; 6076 6077 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6078 6079 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6080 cdb = (struct scsi_unmap *)ctsio->cdb; 6081 6082 len = scsi_2btoul(cdb->length); 6083 byte2 = cdb->byte2; 6084 6085 /* 6086 * If we've got a kernel request that hasn't been malloced yet, 6087 * malloc it and tell the caller the data buffer is here. 6088 */ 6089 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6090 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6091 ctsio->kern_data_len = len; 6092 ctsio->kern_total_len = len; 6093 ctsio->kern_data_resid = 0; 6094 ctsio->kern_rel_offset = 0; 6095 ctsio->kern_sg_entries = 0; 6096 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6097 ctsio->be_move_done = ctl_config_move_done; 6098 ctl_datamove((union ctl_io *)ctsio); 6099 6100 return (CTL_RETVAL_COMPLETE); 6101 } 6102 6103 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6104 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6105 if (len < sizeof (*hdr) || 6106 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6107 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6108 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6109 ctl_set_invalid_field(ctsio, 6110 /*sks_valid*/ 0, 6111 /*command*/ 0, 6112 /*field*/ 0, 6113 /*bit_valid*/ 0, 6114 /*bit*/ 0); 6115 ctl_done((union ctl_io *)ctsio); 6116 return (CTL_RETVAL_COMPLETE); 6117 } 6118 len = scsi_2btoul(hdr->desc_length); 6119 buf = (struct scsi_unmap_desc *)(hdr + 1); 6120 end = buf + len / sizeof(*buf); 6121 6122 for (range = buf; range < end; range++) { 6123 lba = scsi_8btou64(range->lba); 6124 num_blocks = scsi_4btoul(range->length); 6125 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6126 || ((lba + num_blocks) < lba)) { 6127 ctl_set_lba_out_of_range(ctsio); 6128 ctl_done((union ctl_io *)ctsio); 6129 return (CTL_RETVAL_COMPLETE); 6130 } 6131 } 6132 6133 mtx_lock(&lun->lun_lock); 6134 ptrlen = (struct ctl_ptr_len_flags *) 6135 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6136 ptrlen->ptr = (void *)buf; 6137 ptrlen->len = len; 6138 ptrlen->flags = byte2; 6139 ctl_check_blocked(lun); 6140 mtx_unlock(&lun->lun_lock); 6141 6142 retval = lun->backend->config_write((union ctl_io *)ctsio); 6143 return (retval); 6144} 6145 6146/* 6147 * Note that this function currently doesn't actually do anything inside 6148 * CTL to enforce things if the DQue bit is turned on. 6149 * 6150 * Also note that this function can't be used in the default case, because 6151 * the DQue bit isn't set in the changeable mask for the control mode page 6152 * anyway. This is just here as an example for how to implement a page 6153 * handler, and a placeholder in case we want to allow the user to turn 6154 * tagged queueing on and off. 6155 * 6156 * The D_SENSE bit handling is functional, however, and will turn 6157 * descriptor sense on and off for a given LUN. 6158 */ 6159int 6160ctl_control_page_handler(struct ctl_scsiio *ctsio, 6161 struct ctl_page_index *page_index, uint8_t *page_ptr) 6162{ 6163 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6164 struct ctl_lun *lun; 6165 struct ctl_softc *softc; 6166 int set_ua; 6167 uint32_t initidx; 6168 6169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6170 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6171 set_ua = 0; 6172 6173 user_cp = (struct scsi_control_page *)page_ptr; 6174 current_cp = (struct scsi_control_page *) 6175 (page_index->page_data + (page_index->page_len * 6176 CTL_PAGE_CURRENT)); 6177 saved_cp = (struct scsi_control_page *) 6178 (page_index->page_data + (page_index->page_len * 6179 CTL_PAGE_SAVED)); 6180 6181 softc = control_softc; 6182 6183 mtx_lock(&lun->lun_lock); 6184 if (((current_cp->rlec & SCP_DSENSE) == 0) 6185 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6186 /* 6187 * Descriptor sense is currently turned off and the user 6188 * wants to turn it on. 6189 */ 6190 current_cp->rlec |= SCP_DSENSE; 6191 saved_cp->rlec |= SCP_DSENSE; 6192 lun->flags |= CTL_LUN_SENSE_DESC; 6193 set_ua = 1; 6194 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6195 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6196 /* 6197 * Descriptor sense is currently turned on, and the user 6198 * wants to turn it off. 6199 */ 6200 current_cp->rlec &= ~SCP_DSENSE; 6201 saved_cp->rlec &= ~SCP_DSENSE; 6202 lun->flags &= ~CTL_LUN_SENSE_DESC; 6203 set_ua = 1; 6204 } 6205 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6206 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6207 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6208 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6209 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6210 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6211 set_ua = 1; 6212 } 6213 if (set_ua != 0) { 6214 int i; 6215 /* 6216 * Let other initiators know that the mode 6217 * parameters for this LUN have changed. 6218 */ 6219 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6220 if (i == initidx) 6221 continue; 6222 6223 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6224 } 6225 } 6226 mtx_unlock(&lun->lun_lock); 6227 6228 return (0); 6229} 6230 6231int 6232ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6233 struct ctl_page_index *page_index, uint8_t *page_ptr) 6234{ 6235 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6236 struct ctl_lun *lun; 6237 int set_ua; 6238 uint32_t initidx; 6239 6240 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6241 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6242 set_ua = 0; 6243 6244 user_cp = (struct scsi_caching_page *)page_ptr; 6245 current_cp = (struct scsi_caching_page *) 6246 (page_index->page_data + (page_index->page_len * 6247 CTL_PAGE_CURRENT)); 6248 saved_cp = (struct scsi_caching_page *) 6249 (page_index->page_data + (page_index->page_len * 6250 CTL_PAGE_SAVED)); 6251 6252 mtx_lock(&lun->lun_lock); 6253 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6254 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6255 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6256 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6257 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6258 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6259 set_ua = 1; 6260 } 6261 if (set_ua != 0) { 6262 int i; 6263 /* 6264 * Let other initiators know that the mode 6265 * parameters for this LUN have changed. 6266 */ 6267 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6268 if (i == initidx) 6269 continue; 6270 6271 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6272 } 6273 } 6274 mtx_unlock(&lun->lun_lock); 6275 6276 return (0); 6277} 6278 6279int 6280ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6281 struct ctl_page_index *page_index, uint8_t *page_ptr) 6282{ 6283 return (0); 6284} 6285 6286int 6287ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6288 struct ctl_page_index *page_index, int pc) 6289{ 6290 struct copan_power_subpage *page; 6291 6292 page = (struct copan_power_subpage *)page_index->page_data + 6293 (page_index->page_len * pc); 6294 6295 switch (pc) { 6296 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6297 /* 6298 * We don't update the changable bits for this page. 6299 */ 6300 break; 6301 case SMS_PAGE_CTRL_CURRENT >> 6: 6302 case SMS_PAGE_CTRL_DEFAULT >> 6: 6303 case SMS_PAGE_CTRL_SAVED >> 6: 6304#ifdef NEEDTOPORT 6305 ctl_update_power_subpage(page); 6306#endif 6307 break; 6308 default: 6309#ifdef NEEDTOPORT 6310 EPRINT(0, "Invalid PC %d!!", pc); 6311#endif 6312 break; 6313 } 6314 return (0); 6315} 6316 6317 6318int 6319ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6320 struct ctl_page_index *page_index, uint8_t *page_ptr) 6321{ 6322 struct copan_aps_subpage *user_sp; 6323 struct copan_aps_subpage *current_sp; 6324 union ctl_modepage_info *modepage_info; 6325 struct ctl_softc *softc; 6326 struct ctl_lun *lun; 6327 int retval; 6328 6329 retval = CTL_RETVAL_COMPLETE; 6330 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6331 (page_index->page_len * CTL_PAGE_CURRENT)); 6332 softc = control_softc; 6333 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6334 6335 user_sp = (struct copan_aps_subpage *)page_ptr; 6336 6337 modepage_info = (union ctl_modepage_info *) 6338 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6339 6340 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6341 modepage_info->header.subpage = page_index->subpage; 6342 modepage_info->aps.lock_active = user_sp->lock_active; 6343 6344 mtx_lock(&softc->ctl_lock); 6345 6346 /* 6347 * If there is a request to lock the LUN and another LUN is locked 6348 * this is an error. If the requested LUN is already locked ignore 6349 * the request. If no LUN is locked attempt to lock it. 6350 * if there is a request to unlock the LUN and the LUN is currently 6351 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6352 * if another LUN is locked or no LUN is locked. 6353 */ 6354 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6355 if (softc->aps_locked_lun == lun->lun) { 6356 /* 6357 * This LUN is already locked, so we're done. 6358 */ 6359 retval = CTL_RETVAL_COMPLETE; 6360 } else if (softc->aps_locked_lun == 0) { 6361 /* 6362 * No one has the lock, pass the request to the 6363 * backend. 6364 */ 6365 retval = lun->backend->config_write( 6366 (union ctl_io *)ctsio); 6367 } else { 6368 /* 6369 * Someone else has the lock, throw out the request. 6370 */ 6371 ctl_set_already_locked(ctsio); 6372 free(ctsio->kern_data_ptr, M_CTL); 6373 ctl_done((union ctl_io *)ctsio); 6374 6375 /* 6376 * Set the return value so that ctl_do_mode_select() 6377 * won't try to complete the command. We already 6378 * completed it here. 6379 */ 6380 retval = CTL_RETVAL_ERROR; 6381 } 6382 } else if (softc->aps_locked_lun == lun->lun) { 6383 /* 6384 * This LUN is locked, so pass the unlock request to the 6385 * backend. 6386 */ 6387 retval = lun->backend->config_write((union ctl_io *)ctsio); 6388 } 6389 mtx_unlock(&softc->ctl_lock); 6390 6391 return (retval); 6392} 6393 6394int 6395ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6396 struct ctl_page_index *page_index, 6397 uint8_t *page_ptr) 6398{ 6399 uint8_t *c; 6400 int i; 6401 6402 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6403 ctl_time_io_secs = 6404 (c[0] << 8) | 6405 (c[1] << 0) | 6406 0; 6407 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6408 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6409 printf("page data:"); 6410 for (i=0; i<8; i++) 6411 printf(" %.2x",page_ptr[i]); 6412 printf("\n"); 6413 return (0); 6414} 6415 6416int 6417ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6418 struct ctl_page_index *page_index, 6419 int pc) 6420{ 6421 struct copan_debugconf_subpage *page; 6422 6423 page = (struct copan_debugconf_subpage *)page_index->page_data + 6424 (page_index->page_len * pc); 6425 6426 switch (pc) { 6427 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6428 case SMS_PAGE_CTRL_DEFAULT >> 6: 6429 case SMS_PAGE_CTRL_SAVED >> 6: 6430 /* 6431 * We don't update the changable or default bits for this page. 6432 */ 6433 break; 6434 case SMS_PAGE_CTRL_CURRENT >> 6: 6435 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6436 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6437 break; 6438 default: 6439#ifdef NEEDTOPORT 6440 EPRINT(0, "Invalid PC %d!!", pc); 6441#endif /* NEEDTOPORT */ 6442 break; 6443 } 6444 return (0); 6445} 6446 6447 6448static int 6449ctl_do_mode_select(union ctl_io *io) 6450{ 6451 struct scsi_mode_page_header *page_header; 6452 struct ctl_page_index *page_index; 6453 struct ctl_scsiio *ctsio; 6454 int control_dev, page_len; 6455 int page_len_offset, page_len_size; 6456 union ctl_modepage_info *modepage_info; 6457 struct ctl_lun *lun; 6458 int *len_left, *len_used; 6459 int retval, i; 6460 6461 ctsio = &io->scsiio; 6462 page_index = NULL; 6463 page_len = 0; 6464 retval = CTL_RETVAL_COMPLETE; 6465 6466 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6467 6468 if (lun->be_lun->lun_type != T_DIRECT) 6469 control_dev = 1; 6470 else 6471 control_dev = 0; 6472 6473 modepage_info = (union ctl_modepage_info *) 6474 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6475 len_left = &modepage_info->header.len_left; 6476 len_used = &modepage_info->header.len_used; 6477 6478do_next_page: 6479 6480 page_header = (struct scsi_mode_page_header *) 6481 (ctsio->kern_data_ptr + *len_used); 6482 6483 if (*len_left == 0) { 6484 free(ctsio->kern_data_ptr, M_CTL); 6485 ctl_set_success(ctsio); 6486 ctl_done((union ctl_io *)ctsio); 6487 return (CTL_RETVAL_COMPLETE); 6488 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6489 6490 free(ctsio->kern_data_ptr, M_CTL); 6491 ctl_set_param_len_error(ctsio); 6492 ctl_done((union ctl_io *)ctsio); 6493 return (CTL_RETVAL_COMPLETE); 6494 6495 } else if ((page_header->page_code & SMPH_SPF) 6496 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6497 6498 free(ctsio->kern_data_ptr, M_CTL); 6499 ctl_set_param_len_error(ctsio); 6500 ctl_done((union ctl_io *)ctsio); 6501 return (CTL_RETVAL_COMPLETE); 6502 } 6503 6504 6505 /* 6506 * XXX KDM should we do something with the block descriptor? 6507 */ 6508 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6509 6510 if ((control_dev != 0) 6511 && (lun->mode_pages.index[i].page_flags & 6512 CTL_PAGE_FLAG_DISK_ONLY)) 6513 continue; 6514 6515 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6516 (page_header->page_code & SMPH_PC_MASK)) 6517 continue; 6518 6519 /* 6520 * If neither page has a subpage code, then we've got a 6521 * match. 6522 */ 6523 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6524 && ((page_header->page_code & SMPH_SPF) == 0)) { 6525 page_index = &lun->mode_pages.index[i]; 6526 page_len = page_header->page_length; 6527 break; 6528 } 6529 6530 /* 6531 * If both pages have subpages, then the subpage numbers 6532 * have to match. 6533 */ 6534 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6535 && (page_header->page_code & SMPH_SPF)) { 6536 struct scsi_mode_page_header_sp *sph; 6537 6538 sph = (struct scsi_mode_page_header_sp *)page_header; 6539 6540 if (lun->mode_pages.index[i].subpage == 6541 sph->subpage) { 6542 page_index = &lun->mode_pages.index[i]; 6543 page_len = scsi_2btoul(sph->page_length); 6544 break; 6545 } 6546 } 6547 } 6548 6549 /* 6550 * If we couldn't find the page, or if we don't have a mode select 6551 * handler for it, send back an error to the user. 6552 */ 6553 if ((page_index == NULL) 6554 || (page_index->select_handler == NULL)) { 6555 ctl_set_invalid_field(ctsio, 6556 /*sks_valid*/ 1, 6557 /*command*/ 0, 6558 /*field*/ *len_used, 6559 /*bit_valid*/ 0, 6560 /*bit*/ 0); 6561 free(ctsio->kern_data_ptr, M_CTL); 6562 ctl_done((union ctl_io *)ctsio); 6563 return (CTL_RETVAL_COMPLETE); 6564 } 6565 6566 if (page_index->page_code & SMPH_SPF) { 6567 page_len_offset = 2; 6568 page_len_size = 2; 6569 } else { 6570 page_len_size = 1; 6571 page_len_offset = 1; 6572 } 6573 6574 /* 6575 * If the length the initiator gives us isn't the one we specify in 6576 * the mode page header, or if they didn't specify enough data in 6577 * the CDB to avoid truncating this page, kick out the request. 6578 */ 6579 if ((page_len != (page_index->page_len - page_len_offset - 6580 page_len_size)) 6581 || (*len_left < page_index->page_len)) { 6582 6583 6584 ctl_set_invalid_field(ctsio, 6585 /*sks_valid*/ 1, 6586 /*command*/ 0, 6587 /*field*/ *len_used + page_len_offset, 6588 /*bit_valid*/ 0, 6589 /*bit*/ 0); 6590 free(ctsio->kern_data_ptr, M_CTL); 6591 ctl_done((union ctl_io *)ctsio); 6592 return (CTL_RETVAL_COMPLETE); 6593 } 6594 6595 /* 6596 * Run through the mode page, checking to make sure that the bits 6597 * the user changed are actually legal for him to change. 6598 */ 6599 for (i = 0; i < page_index->page_len; i++) { 6600 uint8_t *user_byte, *change_mask, *current_byte; 6601 int bad_bit; 6602 int j; 6603 6604 user_byte = (uint8_t *)page_header + i; 6605 change_mask = page_index->page_data + 6606 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6607 current_byte = page_index->page_data + 6608 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6609 6610 /* 6611 * Check to see whether the user set any bits in this byte 6612 * that he is not allowed to set. 6613 */ 6614 if ((*user_byte & ~(*change_mask)) == 6615 (*current_byte & ~(*change_mask))) 6616 continue; 6617 6618 /* 6619 * Go through bit by bit to determine which one is illegal. 6620 */ 6621 bad_bit = 0; 6622 for (j = 7; j >= 0; j--) { 6623 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6624 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6625 bad_bit = i; 6626 break; 6627 } 6628 } 6629 ctl_set_invalid_field(ctsio, 6630 /*sks_valid*/ 1, 6631 /*command*/ 0, 6632 /*field*/ *len_used + i, 6633 /*bit_valid*/ 1, 6634 /*bit*/ bad_bit); 6635 free(ctsio->kern_data_ptr, M_CTL); 6636 ctl_done((union ctl_io *)ctsio); 6637 return (CTL_RETVAL_COMPLETE); 6638 } 6639 6640 /* 6641 * Decrement these before we call the page handler, since we may 6642 * end up getting called back one way or another before the handler 6643 * returns to this context. 6644 */ 6645 *len_left -= page_index->page_len; 6646 *len_used += page_index->page_len; 6647 6648 retval = page_index->select_handler(ctsio, page_index, 6649 (uint8_t *)page_header); 6650 6651 /* 6652 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6653 * wait until this queued command completes to finish processing 6654 * the mode page. If it returns anything other than 6655 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6656 * already set the sense information, freed the data pointer, and 6657 * completed the io for us. 6658 */ 6659 if (retval != CTL_RETVAL_COMPLETE) 6660 goto bailout_no_done; 6661 6662 /* 6663 * If the initiator sent us more than one page, parse the next one. 6664 */ 6665 if (*len_left > 0) 6666 goto do_next_page; 6667 6668 ctl_set_success(ctsio); 6669 free(ctsio->kern_data_ptr, M_CTL); 6670 ctl_done((union ctl_io *)ctsio); 6671 6672bailout_no_done: 6673 6674 return (CTL_RETVAL_COMPLETE); 6675 6676} 6677 6678int 6679ctl_mode_select(struct ctl_scsiio *ctsio) 6680{ 6681 int param_len, pf, sp; 6682 int header_size, bd_len; 6683 int len_left, len_used; 6684 struct ctl_page_index *page_index; 6685 struct ctl_lun *lun; 6686 int control_dev, page_len; 6687 union ctl_modepage_info *modepage_info; 6688 int retval; 6689 6690 pf = 0; 6691 sp = 0; 6692 page_len = 0; 6693 len_used = 0; 6694 len_left = 0; 6695 retval = 0; 6696 bd_len = 0; 6697 page_index = NULL; 6698 6699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6700 6701 if (lun->be_lun->lun_type != T_DIRECT) 6702 control_dev = 1; 6703 else 6704 control_dev = 0; 6705 6706 switch (ctsio->cdb[0]) { 6707 case MODE_SELECT_6: { 6708 struct scsi_mode_select_6 *cdb; 6709 6710 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6711 6712 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6713 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6714 6715 param_len = cdb->length; 6716 header_size = sizeof(struct scsi_mode_header_6); 6717 break; 6718 } 6719 case MODE_SELECT_10: { 6720 struct scsi_mode_select_10 *cdb; 6721 6722 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6723 6724 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6725 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6726 6727 param_len = scsi_2btoul(cdb->length); 6728 header_size = sizeof(struct scsi_mode_header_10); 6729 break; 6730 } 6731 default: 6732 ctl_set_invalid_opcode(ctsio); 6733 ctl_done((union ctl_io *)ctsio); 6734 return (CTL_RETVAL_COMPLETE); 6735 break; /* NOTREACHED */ 6736 } 6737 6738 /* 6739 * From SPC-3: 6740 * "A parameter list length of zero indicates that the Data-Out Buffer 6741 * shall be empty. This condition shall not be considered as an error." 6742 */ 6743 if (param_len == 0) { 6744 ctl_set_success(ctsio); 6745 ctl_done((union ctl_io *)ctsio); 6746 return (CTL_RETVAL_COMPLETE); 6747 } 6748 6749 /* 6750 * Since we'll hit this the first time through, prior to 6751 * allocation, we don't need to free a data buffer here. 6752 */ 6753 if (param_len < header_size) { 6754 ctl_set_param_len_error(ctsio); 6755 ctl_done((union ctl_io *)ctsio); 6756 return (CTL_RETVAL_COMPLETE); 6757 } 6758 6759 /* 6760 * Allocate the data buffer and grab the user's data. In theory, 6761 * we shouldn't have to sanity check the parameter list length here 6762 * because the maximum size is 64K. We should be able to malloc 6763 * that much without too many problems. 6764 */ 6765 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6766 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6767 ctsio->kern_data_len = param_len; 6768 ctsio->kern_total_len = param_len; 6769 ctsio->kern_data_resid = 0; 6770 ctsio->kern_rel_offset = 0; 6771 ctsio->kern_sg_entries = 0; 6772 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6773 ctsio->be_move_done = ctl_config_move_done; 6774 ctl_datamove((union ctl_io *)ctsio); 6775 6776 return (CTL_RETVAL_COMPLETE); 6777 } 6778 6779 switch (ctsio->cdb[0]) { 6780 case MODE_SELECT_6: { 6781 struct scsi_mode_header_6 *mh6; 6782 6783 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6784 bd_len = mh6->blk_desc_len; 6785 break; 6786 } 6787 case MODE_SELECT_10: { 6788 struct scsi_mode_header_10 *mh10; 6789 6790 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6791 bd_len = scsi_2btoul(mh10->blk_desc_len); 6792 break; 6793 } 6794 default: 6795 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6796 break; 6797 } 6798 6799 if (param_len < (header_size + bd_len)) { 6800 free(ctsio->kern_data_ptr, M_CTL); 6801 ctl_set_param_len_error(ctsio); 6802 ctl_done((union ctl_io *)ctsio); 6803 return (CTL_RETVAL_COMPLETE); 6804 } 6805 6806 /* 6807 * Set the IO_CONT flag, so that if this I/O gets passed to 6808 * ctl_config_write_done(), it'll get passed back to 6809 * ctl_do_mode_select() for further processing, or completion if 6810 * we're all done. 6811 */ 6812 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6813 ctsio->io_cont = ctl_do_mode_select; 6814 6815 modepage_info = (union ctl_modepage_info *) 6816 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6817 6818 memset(modepage_info, 0, sizeof(*modepage_info)); 6819 6820 len_left = param_len - header_size - bd_len; 6821 len_used = header_size + bd_len; 6822 6823 modepage_info->header.len_left = len_left; 6824 modepage_info->header.len_used = len_used; 6825 6826 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6827} 6828 6829int 6830ctl_mode_sense(struct ctl_scsiio *ctsio) 6831{ 6832 struct ctl_lun *lun; 6833 int pc, page_code, dbd, llba, subpage; 6834 int alloc_len, page_len, header_len, total_len; 6835 struct scsi_mode_block_descr *block_desc; 6836 struct ctl_page_index *page_index; 6837 int control_dev; 6838 6839 dbd = 0; 6840 llba = 0; 6841 block_desc = NULL; 6842 page_index = NULL; 6843 6844 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6845 6846 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6847 6848 if (lun->be_lun->lun_type != T_DIRECT) 6849 control_dev = 1; 6850 else 6851 control_dev = 0; 6852 6853 if (lun->flags & CTL_LUN_PR_RESERVED) { 6854 uint32_t residx; 6855 6856 /* 6857 * XXX KDM need a lock here. 6858 */ 6859 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6860 if ((lun->res_type == SPR_TYPE_EX_AC 6861 && residx != lun->pr_res_idx) 6862 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6863 || lun->res_type == SPR_TYPE_EX_AC_AR) 6864 && !lun->per_res[residx].registered)) { 6865 ctl_set_reservation_conflict(ctsio); 6866 ctl_done((union ctl_io *)ctsio); 6867 return (CTL_RETVAL_COMPLETE); 6868 } 6869 } 6870 6871 switch (ctsio->cdb[0]) { 6872 case MODE_SENSE_6: { 6873 struct scsi_mode_sense_6 *cdb; 6874 6875 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6876 6877 header_len = sizeof(struct scsi_mode_hdr_6); 6878 if (cdb->byte2 & SMS_DBD) 6879 dbd = 1; 6880 else 6881 header_len += sizeof(struct scsi_mode_block_descr); 6882 6883 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6884 page_code = cdb->page & SMS_PAGE_CODE; 6885 subpage = cdb->subpage; 6886 alloc_len = cdb->length; 6887 break; 6888 } 6889 case MODE_SENSE_10: { 6890 struct scsi_mode_sense_10 *cdb; 6891 6892 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6893 6894 header_len = sizeof(struct scsi_mode_hdr_10); 6895 6896 if (cdb->byte2 & SMS_DBD) 6897 dbd = 1; 6898 else 6899 header_len += sizeof(struct scsi_mode_block_descr); 6900 if (cdb->byte2 & SMS10_LLBAA) 6901 llba = 1; 6902 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6903 page_code = cdb->page & SMS_PAGE_CODE; 6904 subpage = cdb->subpage; 6905 alloc_len = scsi_2btoul(cdb->length); 6906 break; 6907 } 6908 default: 6909 ctl_set_invalid_opcode(ctsio); 6910 ctl_done((union ctl_io *)ctsio); 6911 return (CTL_RETVAL_COMPLETE); 6912 break; /* NOTREACHED */ 6913 } 6914 6915 /* 6916 * We have to make a first pass through to calculate the size of 6917 * the pages that match the user's query. Then we allocate enough 6918 * memory to hold it, and actually copy the data into the buffer. 6919 */ 6920 switch (page_code) { 6921 case SMS_ALL_PAGES_PAGE: { 6922 int i; 6923 6924 page_len = 0; 6925 6926 /* 6927 * At the moment, values other than 0 and 0xff here are 6928 * reserved according to SPC-3. 6929 */ 6930 if ((subpage != SMS_SUBPAGE_PAGE_0) 6931 && (subpage != SMS_SUBPAGE_ALL)) { 6932 ctl_set_invalid_field(ctsio, 6933 /*sks_valid*/ 1, 6934 /*command*/ 1, 6935 /*field*/ 3, 6936 /*bit_valid*/ 0, 6937 /*bit*/ 0); 6938 ctl_done((union ctl_io *)ctsio); 6939 return (CTL_RETVAL_COMPLETE); 6940 } 6941 6942 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6943 if ((control_dev != 0) 6944 && (lun->mode_pages.index[i].page_flags & 6945 CTL_PAGE_FLAG_DISK_ONLY)) 6946 continue; 6947 6948 /* 6949 * We don't use this subpage if the user didn't 6950 * request all subpages. 6951 */ 6952 if ((lun->mode_pages.index[i].subpage != 0) 6953 && (subpage == SMS_SUBPAGE_PAGE_0)) 6954 continue; 6955 6956#if 0 6957 printf("found page %#x len %d\n", 6958 lun->mode_pages.index[i].page_code & 6959 SMPH_PC_MASK, 6960 lun->mode_pages.index[i].page_len); 6961#endif 6962 page_len += lun->mode_pages.index[i].page_len; 6963 } 6964 break; 6965 } 6966 default: { 6967 int i; 6968 6969 page_len = 0; 6970 6971 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6972 /* Look for the right page code */ 6973 if ((lun->mode_pages.index[i].page_code & 6974 SMPH_PC_MASK) != page_code) 6975 continue; 6976 6977 /* Look for the right subpage or the subpage wildcard*/ 6978 if ((lun->mode_pages.index[i].subpage != subpage) 6979 && (subpage != SMS_SUBPAGE_ALL)) 6980 continue; 6981 6982 /* Make sure the page is supported for this dev type */ 6983 if ((control_dev != 0) 6984 && (lun->mode_pages.index[i].page_flags & 6985 CTL_PAGE_FLAG_DISK_ONLY)) 6986 continue; 6987 6988#if 0 6989 printf("found page %#x len %d\n", 6990 lun->mode_pages.index[i].page_code & 6991 SMPH_PC_MASK, 6992 lun->mode_pages.index[i].page_len); 6993#endif 6994 6995 page_len += lun->mode_pages.index[i].page_len; 6996 } 6997 6998 if (page_len == 0) { 6999 ctl_set_invalid_field(ctsio, 7000 /*sks_valid*/ 1, 7001 /*command*/ 1, 7002 /*field*/ 2, 7003 /*bit_valid*/ 1, 7004 /*bit*/ 5); 7005 ctl_done((union ctl_io *)ctsio); 7006 return (CTL_RETVAL_COMPLETE); 7007 } 7008 break; 7009 } 7010 } 7011 7012 total_len = header_len + page_len; 7013#if 0 7014 printf("header_len = %d, page_len = %d, total_len = %d\n", 7015 header_len, page_len, total_len); 7016#endif 7017 7018 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7019 ctsio->kern_sg_entries = 0; 7020 ctsio->kern_data_resid = 0; 7021 ctsio->kern_rel_offset = 0; 7022 if (total_len < alloc_len) { 7023 ctsio->residual = alloc_len - total_len; 7024 ctsio->kern_data_len = total_len; 7025 ctsio->kern_total_len = total_len; 7026 } else { 7027 ctsio->residual = 0; 7028 ctsio->kern_data_len = alloc_len; 7029 ctsio->kern_total_len = alloc_len; 7030 } 7031 7032 switch (ctsio->cdb[0]) { 7033 case MODE_SENSE_6: { 7034 struct scsi_mode_hdr_6 *header; 7035 7036 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7037 7038 header->datalen = ctl_min(total_len - 1, 254); 7039 if (control_dev == 0) 7040 header->dev_specific = 0x10; /* DPOFUA */ 7041 if (dbd) 7042 header->block_descr_len = 0; 7043 else 7044 header->block_descr_len = 7045 sizeof(struct scsi_mode_block_descr); 7046 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7047 break; 7048 } 7049 case MODE_SENSE_10: { 7050 struct scsi_mode_hdr_10 *header; 7051 int datalen; 7052 7053 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7054 7055 datalen = ctl_min(total_len - 2, 65533); 7056 scsi_ulto2b(datalen, header->datalen); 7057 if (control_dev == 0) 7058 header->dev_specific = 0x10; /* DPOFUA */ 7059 if (dbd) 7060 scsi_ulto2b(0, header->block_descr_len); 7061 else 7062 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7063 header->block_descr_len); 7064 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7065 break; 7066 } 7067 default: 7068 panic("invalid CDB type %#x", ctsio->cdb[0]); 7069 break; /* NOTREACHED */ 7070 } 7071 7072 /* 7073 * If we've got a disk, use its blocksize in the block 7074 * descriptor. Otherwise, just set it to 0. 7075 */ 7076 if (dbd == 0) { 7077 if (control_dev == 0) 7078 scsi_ulto3b(lun->be_lun->blocksize, 7079 block_desc->block_len); 7080 else 7081 scsi_ulto3b(0, block_desc->block_len); 7082 } 7083 7084 switch (page_code) { 7085 case SMS_ALL_PAGES_PAGE: { 7086 int i, data_used; 7087 7088 data_used = header_len; 7089 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7090 struct ctl_page_index *page_index; 7091 7092 page_index = &lun->mode_pages.index[i]; 7093 7094 if ((control_dev != 0) 7095 && (page_index->page_flags & 7096 CTL_PAGE_FLAG_DISK_ONLY)) 7097 continue; 7098 7099 /* 7100 * We don't use this subpage if the user didn't 7101 * request all subpages. We already checked (above) 7102 * to make sure the user only specified a subpage 7103 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7104 */ 7105 if ((page_index->subpage != 0) 7106 && (subpage == SMS_SUBPAGE_PAGE_0)) 7107 continue; 7108 7109 /* 7110 * Call the handler, if it exists, to update the 7111 * page to the latest values. 7112 */ 7113 if (page_index->sense_handler != NULL) 7114 page_index->sense_handler(ctsio, page_index,pc); 7115 7116 memcpy(ctsio->kern_data_ptr + data_used, 7117 page_index->page_data + 7118 (page_index->page_len * pc), 7119 page_index->page_len); 7120 data_used += page_index->page_len; 7121 } 7122 break; 7123 } 7124 default: { 7125 int i, data_used; 7126 7127 data_used = header_len; 7128 7129 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7130 struct ctl_page_index *page_index; 7131 7132 page_index = &lun->mode_pages.index[i]; 7133 7134 /* Look for the right page code */ 7135 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7136 continue; 7137 7138 /* Look for the right subpage or the subpage wildcard*/ 7139 if ((page_index->subpage != subpage) 7140 && (subpage != SMS_SUBPAGE_ALL)) 7141 continue; 7142 7143 /* Make sure the page is supported for this dev type */ 7144 if ((control_dev != 0) 7145 && (page_index->page_flags & 7146 CTL_PAGE_FLAG_DISK_ONLY)) 7147 continue; 7148 7149 /* 7150 * Call the handler, if it exists, to update the 7151 * page to the latest values. 7152 */ 7153 if (page_index->sense_handler != NULL) 7154 page_index->sense_handler(ctsio, page_index,pc); 7155 7156 memcpy(ctsio->kern_data_ptr + data_used, 7157 page_index->page_data + 7158 (page_index->page_len * pc), 7159 page_index->page_len); 7160 data_used += page_index->page_len; 7161 } 7162 break; 7163 } 7164 } 7165 7166 ctsio->scsi_status = SCSI_STATUS_OK; 7167 7168 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7169 ctsio->be_move_done = ctl_config_move_done; 7170 ctl_datamove((union ctl_io *)ctsio); 7171 7172 return (CTL_RETVAL_COMPLETE); 7173} 7174 7175int 7176ctl_read_capacity(struct ctl_scsiio *ctsio) 7177{ 7178 struct scsi_read_capacity *cdb; 7179 struct scsi_read_capacity_data *data; 7180 struct ctl_lun *lun; 7181 uint32_t lba; 7182 7183 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7184 7185 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7186 7187 lba = scsi_4btoul(cdb->addr); 7188 if (((cdb->pmi & SRC_PMI) == 0) 7189 && (lba != 0)) { 7190 ctl_set_invalid_field(/*ctsio*/ ctsio, 7191 /*sks_valid*/ 1, 7192 /*command*/ 1, 7193 /*field*/ 2, 7194 /*bit_valid*/ 0, 7195 /*bit*/ 0); 7196 ctl_done((union ctl_io *)ctsio); 7197 return (CTL_RETVAL_COMPLETE); 7198 } 7199 7200 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7201 7202 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7203 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7204 ctsio->residual = 0; 7205 ctsio->kern_data_len = sizeof(*data); 7206 ctsio->kern_total_len = sizeof(*data); 7207 ctsio->kern_data_resid = 0; 7208 ctsio->kern_rel_offset = 0; 7209 ctsio->kern_sg_entries = 0; 7210 7211 /* 7212 * If the maximum LBA is greater than 0xfffffffe, the user must 7213 * issue a SERVICE ACTION IN (16) command, with the read capacity 7214 * serivce action set. 7215 */ 7216 if (lun->be_lun->maxlba > 0xfffffffe) 7217 scsi_ulto4b(0xffffffff, data->addr); 7218 else 7219 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7220 7221 /* 7222 * XXX KDM this may not be 512 bytes... 7223 */ 7224 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7225 7226 ctsio->scsi_status = SCSI_STATUS_OK; 7227 7228 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7229 ctsio->be_move_done = ctl_config_move_done; 7230 ctl_datamove((union ctl_io *)ctsio); 7231 7232 return (CTL_RETVAL_COMPLETE); 7233} 7234 7235int 7236ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7237{ 7238 struct scsi_read_capacity_16 *cdb; 7239 struct scsi_read_capacity_data_long *data; 7240 struct ctl_lun *lun; 7241 uint64_t lba; 7242 uint32_t alloc_len; 7243 7244 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7245 7246 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7247 7248 alloc_len = scsi_4btoul(cdb->alloc_len); 7249 lba = scsi_8btou64(cdb->addr); 7250 7251 if ((cdb->reladr & SRC16_PMI) 7252 && (lba != 0)) { 7253 ctl_set_invalid_field(/*ctsio*/ ctsio, 7254 /*sks_valid*/ 1, 7255 /*command*/ 1, 7256 /*field*/ 2, 7257 /*bit_valid*/ 0, 7258 /*bit*/ 0); 7259 ctl_done((union ctl_io *)ctsio); 7260 return (CTL_RETVAL_COMPLETE); 7261 } 7262 7263 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7264 7265 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7266 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7267 7268 if (sizeof(*data) < alloc_len) { 7269 ctsio->residual = alloc_len - sizeof(*data); 7270 ctsio->kern_data_len = sizeof(*data); 7271 ctsio->kern_total_len = sizeof(*data); 7272 } else { 7273 ctsio->residual = 0; 7274 ctsio->kern_data_len = alloc_len; 7275 ctsio->kern_total_len = alloc_len; 7276 } 7277 ctsio->kern_data_resid = 0; 7278 ctsio->kern_rel_offset = 0; 7279 ctsio->kern_sg_entries = 0; 7280 7281 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7282 /* XXX KDM this may not be 512 bytes... */ 7283 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7284 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7285 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7286 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7287 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7288 7289 ctsio->scsi_status = SCSI_STATUS_OK; 7290 7291 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7292 ctsio->be_move_done = ctl_config_move_done; 7293 ctl_datamove((union ctl_io *)ctsio); 7294 7295 return (CTL_RETVAL_COMPLETE); 7296} 7297 7298int 7299ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7300{ 7301 struct scsi_maintenance_in *cdb; 7302 int retval; 7303 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7304 int num_target_port_groups, num_target_ports, single; 7305 struct ctl_lun *lun; 7306 struct ctl_softc *softc; 7307 struct ctl_port *port; 7308 struct scsi_target_group_data *rtg_ptr; 7309 struct scsi_target_group_data_extended *rtg_ext_ptr; 7310 struct scsi_target_port_group_descriptor *tpg_desc; 7311 7312 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7313 7314 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7315 softc = control_softc; 7316 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7317 7318 retval = CTL_RETVAL_COMPLETE; 7319 7320 switch (cdb->byte2 & STG_PDF_MASK) { 7321 case STG_PDF_LENGTH: 7322 ext = 0; 7323 break; 7324 case STG_PDF_EXTENDED: 7325 ext = 1; 7326 break; 7327 default: 7328 ctl_set_invalid_field(/*ctsio*/ ctsio, 7329 /*sks_valid*/ 1, 7330 /*command*/ 1, 7331 /*field*/ 2, 7332 /*bit_valid*/ 1, 7333 /*bit*/ 5); 7334 ctl_done((union ctl_io *)ctsio); 7335 return(retval); 7336 } 7337 7338 single = ctl_is_single; 7339 if (single) 7340 num_target_port_groups = 1; 7341 else 7342 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7343 num_target_ports = 0; 7344 mtx_lock(&softc->ctl_lock); 7345 STAILQ_FOREACH(port, &softc->port_list, links) { 7346 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7347 continue; 7348 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7349 continue; 7350 num_target_ports++; 7351 } 7352 mtx_unlock(&softc->ctl_lock); 7353 7354 if (ext) 7355 total_len = sizeof(struct scsi_target_group_data_extended); 7356 else 7357 total_len = sizeof(struct scsi_target_group_data); 7358 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7359 num_target_port_groups + 7360 sizeof(struct scsi_target_port_descriptor) * 7361 num_target_ports * num_target_port_groups; 7362 7363 alloc_len = scsi_4btoul(cdb->length); 7364 7365 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7366 7367 ctsio->kern_sg_entries = 0; 7368 7369 if (total_len < alloc_len) { 7370 ctsio->residual = alloc_len - total_len; 7371 ctsio->kern_data_len = total_len; 7372 ctsio->kern_total_len = total_len; 7373 } else { 7374 ctsio->residual = 0; 7375 ctsio->kern_data_len = alloc_len; 7376 ctsio->kern_total_len = alloc_len; 7377 } 7378 ctsio->kern_data_resid = 0; 7379 ctsio->kern_rel_offset = 0; 7380 7381 if (ext) { 7382 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7383 ctsio->kern_data_ptr; 7384 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7385 rtg_ext_ptr->format_type = 0x10; 7386 rtg_ext_ptr->implicit_transition_time = 0; 7387 tpg_desc = &rtg_ext_ptr->groups[0]; 7388 } else { 7389 rtg_ptr = (struct scsi_target_group_data *) 7390 ctsio->kern_data_ptr; 7391 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7392 tpg_desc = &rtg_ptr->groups[0]; 7393 } 7394 7395 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7396 mtx_lock(&softc->ctl_lock); 7397 for (g = 0; g < num_target_port_groups; g++) { 7398 if (g == pg) 7399 tpg_desc->pref_state = TPG_PRIMARY | 7400 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7401 else 7402 tpg_desc->pref_state = 7403 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7404 tpg_desc->support = TPG_AO_SUP; 7405 if (!single) 7406 tpg_desc->support |= TPG_AN_SUP; 7407 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7408 tpg_desc->status = TPG_IMPLICIT; 7409 pc = 0; 7410 STAILQ_FOREACH(port, &softc->port_list, links) { 7411 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7412 continue; 7413 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7414 CTL_MAX_LUNS) 7415 continue; 7416 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7417 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7418 relative_target_port_identifier); 7419 pc++; 7420 } 7421 tpg_desc->target_port_count = pc; 7422 tpg_desc = (struct scsi_target_port_group_descriptor *) 7423 &tpg_desc->descriptors[pc]; 7424 } 7425 mtx_unlock(&softc->ctl_lock); 7426 7427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7428 ctsio->be_move_done = ctl_config_move_done; 7429 7430 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7431 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7432 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7433 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7434 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7435 7436 ctl_datamove((union ctl_io *)ctsio); 7437 return(retval); 7438} 7439 7440int 7441ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7442{ 7443 struct ctl_lun *lun; 7444 struct scsi_report_supported_opcodes *cdb; 7445 const struct ctl_cmd_entry *entry, *sentry; 7446 struct scsi_report_supported_opcodes_all *all; 7447 struct scsi_report_supported_opcodes_descr *descr; 7448 struct scsi_report_supported_opcodes_one *one; 7449 int retval; 7450 int alloc_len, total_len; 7451 int opcode, service_action, i, j, num; 7452 7453 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7454 7455 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7456 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7457 7458 retval = CTL_RETVAL_COMPLETE; 7459 7460 opcode = cdb->requested_opcode; 7461 service_action = scsi_2btoul(cdb->requested_service_action); 7462 switch (cdb->options & RSO_OPTIONS_MASK) { 7463 case RSO_OPTIONS_ALL: 7464 num = 0; 7465 for (i = 0; i < 256; i++) { 7466 entry = &ctl_cmd_table[i]; 7467 if (entry->flags & CTL_CMD_FLAG_SA5) { 7468 for (j = 0; j < 32; j++) { 7469 sentry = &((const struct ctl_cmd_entry *) 7470 entry->execute)[j]; 7471 if (ctl_cmd_applicable( 7472 lun->be_lun->lun_type, sentry)) 7473 num++; 7474 } 7475 } else { 7476 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7477 entry)) 7478 num++; 7479 } 7480 } 7481 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7482 num * sizeof(struct scsi_report_supported_opcodes_descr); 7483 break; 7484 case RSO_OPTIONS_OC: 7485 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7486 ctl_set_invalid_field(/*ctsio*/ ctsio, 7487 /*sks_valid*/ 1, 7488 /*command*/ 1, 7489 /*field*/ 2, 7490 /*bit_valid*/ 1, 7491 /*bit*/ 2); 7492 ctl_done((union ctl_io *)ctsio); 7493 return (CTL_RETVAL_COMPLETE); 7494 } 7495 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7496 break; 7497 case RSO_OPTIONS_OC_SA: 7498 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7499 service_action >= 32) { 7500 ctl_set_invalid_field(/*ctsio*/ ctsio, 7501 /*sks_valid*/ 1, 7502 /*command*/ 1, 7503 /*field*/ 2, 7504 /*bit_valid*/ 1, 7505 /*bit*/ 2); 7506 ctl_done((union ctl_io *)ctsio); 7507 return (CTL_RETVAL_COMPLETE); 7508 } 7509 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7510 break; 7511 default: 7512 ctl_set_invalid_field(/*ctsio*/ ctsio, 7513 /*sks_valid*/ 1, 7514 /*command*/ 1, 7515 /*field*/ 2, 7516 /*bit_valid*/ 1, 7517 /*bit*/ 2); 7518 ctl_done((union ctl_io *)ctsio); 7519 return (CTL_RETVAL_COMPLETE); 7520 } 7521 7522 alloc_len = scsi_4btoul(cdb->length); 7523 7524 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7525 7526 ctsio->kern_sg_entries = 0; 7527 7528 if (total_len < alloc_len) { 7529 ctsio->residual = alloc_len - total_len; 7530 ctsio->kern_data_len = total_len; 7531 ctsio->kern_total_len = total_len; 7532 } else { 7533 ctsio->residual = 0; 7534 ctsio->kern_data_len = alloc_len; 7535 ctsio->kern_total_len = alloc_len; 7536 } 7537 ctsio->kern_data_resid = 0; 7538 ctsio->kern_rel_offset = 0; 7539 7540 switch (cdb->options & RSO_OPTIONS_MASK) { 7541 case RSO_OPTIONS_ALL: 7542 all = (struct scsi_report_supported_opcodes_all *) 7543 ctsio->kern_data_ptr; 7544 num = 0; 7545 for (i = 0; i < 256; i++) { 7546 entry = &ctl_cmd_table[i]; 7547 if (entry->flags & CTL_CMD_FLAG_SA5) { 7548 for (j = 0; j < 32; j++) { 7549 sentry = &((const struct ctl_cmd_entry *) 7550 entry->execute)[j]; 7551 if (!ctl_cmd_applicable( 7552 lun->be_lun->lun_type, sentry)) 7553 continue; 7554 descr = &all->descr[num++]; 7555 descr->opcode = i; 7556 scsi_ulto2b(j, descr->service_action); 7557 descr->flags = RSO_SERVACTV; 7558 scsi_ulto2b(sentry->length, 7559 descr->cdb_length); 7560 } 7561 } else { 7562 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7563 entry)) 7564 continue; 7565 descr = &all->descr[num++]; 7566 descr->opcode = i; 7567 scsi_ulto2b(0, descr->service_action); 7568 descr->flags = 0; 7569 scsi_ulto2b(entry->length, descr->cdb_length); 7570 } 7571 } 7572 scsi_ulto4b( 7573 num * sizeof(struct scsi_report_supported_opcodes_descr), 7574 all->length); 7575 break; 7576 case RSO_OPTIONS_OC: 7577 one = (struct scsi_report_supported_opcodes_one *) 7578 ctsio->kern_data_ptr; 7579 entry = &ctl_cmd_table[opcode]; 7580 goto fill_one; 7581 case RSO_OPTIONS_OC_SA: 7582 one = (struct scsi_report_supported_opcodes_one *) 7583 ctsio->kern_data_ptr; 7584 entry = &ctl_cmd_table[opcode]; 7585 entry = &((const struct ctl_cmd_entry *) 7586 entry->execute)[service_action]; 7587fill_one: 7588 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7589 one->support = 3; 7590 scsi_ulto2b(entry->length, one->cdb_length); 7591 one->cdb_usage[0] = opcode; 7592 memcpy(&one->cdb_usage[1], entry->usage, 7593 entry->length - 1); 7594 } else 7595 one->support = 1; 7596 break; 7597 } 7598 7599 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7600 ctsio->be_move_done = ctl_config_move_done; 7601 7602 ctl_datamove((union ctl_io *)ctsio); 7603 return(retval); 7604} 7605 7606int 7607ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7608{ 7609 struct ctl_lun *lun; 7610 struct scsi_report_supported_tmf *cdb; 7611 struct scsi_report_supported_tmf_data *data; 7612 int retval; 7613 int alloc_len, total_len; 7614 7615 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7616 7617 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7618 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7619 7620 retval = CTL_RETVAL_COMPLETE; 7621 7622 total_len = sizeof(struct scsi_report_supported_tmf_data); 7623 alloc_len = scsi_4btoul(cdb->length); 7624 7625 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7626 7627 ctsio->kern_sg_entries = 0; 7628 7629 if (total_len < alloc_len) { 7630 ctsio->residual = alloc_len - total_len; 7631 ctsio->kern_data_len = total_len; 7632 ctsio->kern_total_len = total_len; 7633 } else { 7634 ctsio->residual = 0; 7635 ctsio->kern_data_len = alloc_len; 7636 ctsio->kern_total_len = alloc_len; 7637 } 7638 ctsio->kern_data_resid = 0; 7639 ctsio->kern_rel_offset = 0; 7640 7641 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7642 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7643 data->byte2 |= RST_ITNRS; 7644 7645 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7646 ctsio->be_move_done = ctl_config_move_done; 7647 7648 ctl_datamove((union ctl_io *)ctsio); 7649 return (retval); 7650} 7651 7652int 7653ctl_report_timestamp(struct ctl_scsiio *ctsio) 7654{ 7655 struct ctl_lun *lun; 7656 struct scsi_report_timestamp *cdb; 7657 struct scsi_report_timestamp_data *data; 7658 struct timeval tv; 7659 int64_t timestamp; 7660 int retval; 7661 int alloc_len, total_len; 7662 7663 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7664 7665 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7666 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7667 7668 retval = CTL_RETVAL_COMPLETE; 7669 7670 total_len = sizeof(struct scsi_report_timestamp_data); 7671 alloc_len = scsi_4btoul(cdb->length); 7672 7673 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7674 7675 ctsio->kern_sg_entries = 0; 7676 7677 if (total_len < alloc_len) { 7678 ctsio->residual = alloc_len - total_len; 7679 ctsio->kern_data_len = total_len; 7680 ctsio->kern_total_len = total_len; 7681 } else { 7682 ctsio->residual = 0; 7683 ctsio->kern_data_len = alloc_len; 7684 ctsio->kern_total_len = alloc_len; 7685 } 7686 ctsio->kern_data_resid = 0; 7687 ctsio->kern_rel_offset = 0; 7688 7689 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7690 scsi_ulto2b(sizeof(*data) - 2, data->length); 7691 data->origin = RTS_ORIG_OUTSIDE; 7692 getmicrotime(&tv); 7693 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7694 scsi_ulto4b(timestamp >> 16, data->timestamp); 7695 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7696 7697 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7698 ctsio->be_move_done = ctl_config_move_done; 7699 7700 ctl_datamove((union ctl_io *)ctsio); 7701 return (retval); 7702} 7703 7704int 7705ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7706{ 7707 struct scsi_per_res_in *cdb; 7708 int alloc_len, total_len = 0; 7709 /* struct scsi_per_res_in_rsrv in_data; */ 7710 struct ctl_lun *lun; 7711 struct ctl_softc *softc; 7712 7713 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7714 7715 softc = control_softc; 7716 7717 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7718 7719 alloc_len = scsi_2btoul(cdb->length); 7720 7721 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7722 7723retry: 7724 mtx_lock(&lun->lun_lock); 7725 switch (cdb->action) { 7726 case SPRI_RK: /* read keys */ 7727 total_len = sizeof(struct scsi_per_res_in_keys) + 7728 lun->pr_key_count * 7729 sizeof(struct scsi_per_res_key); 7730 break; 7731 case SPRI_RR: /* read reservation */ 7732 if (lun->flags & CTL_LUN_PR_RESERVED) 7733 total_len = sizeof(struct scsi_per_res_in_rsrv); 7734 else 7735 total_len = sizeof(struct scsi_per_res_in_header); 7736 break; 7737 case SPRI_RC: /* report capabilities */ 7738 total_len = sizeof(struct scsi_per_res_cap); 7739 break; 7740 case SPRI_RS: /* read full status */ 7741 total_len = sizeof(struct scsi_per_res_in_header) + 7742 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7743 lun->pr_key_count; 7744 break; 7745 default: 7746 panic("Invalid PR type %x", cdb->action); 7747 } 7748 mtx_unlock(&lun->lun_lock); 7749 7750 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7751 7752 if (total_len < alloc_len) { 7753 ctsio->residual = alloc_len - total_len; 7754 ctsio->kern_data_len = total_len; 7755 ctsio->kern_total_len = total_len; 7756 } else { 7757 ctsio->residual = 0; 7758 ctsio->kern_data_len = alloc_len; 7759 ctsio->kern_total_len = alloc_len; 7760 } 7761 7762 ctsio->kern_data_resid = 0; 7763 ctsio->kern_rel_offset = 0; 7764 ctsio->kern_sg_entries = 0; 7765 7766 mtx_lock(&lun->lun_lock); 7767 switch (cdb->action) { 7768 case SPRI_RK: { // read keys 7769 struct scsi_per_res_in_keys *res_keys; 7770 int i, key_count; 7771 7772 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7773 7774 /* 7775 * We had to drop the lock to allocate our buffer, which 7776 * leaves time for someone to come in with another 7777 * persistent reservation. (That is unlikely, though, 7778 * since this should be the only persistent reservation 7779 * command active right now.) 7780 */ 7781 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7782 (lun->pr_key_count * 7783 sizeof(struct scsi_per_res_key)))){ 7784 mtx_unlock(&lun->lun_lock); 7785 free(ctsio->kern_data_ptr, M_CTL); 7786 printf("%s: reservation length changed, retrying\n", 7787 __func__); 7788 goto retry; 7789 } 7790 7791 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7792 7793 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7794 lun->pr_key_count, res_keys->header.length); 7795 7796 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7797 if (!lun->per_res[i].registered) 7798 continue; 7799 7800 /* 7801 * We used lun->pr_key_count to calculate the 7802 * size to allocate. If it turns out the number of 7803 * initiators with the registered flag set is 7804 * larger than that (i.e. they haven't been kept in 7805 * sync), we've got a problem. 7806 */ 7807 if (key_count >= lun->pr_key_count) { 7808#ifdef NEEDTOPORT 7809 csevent_log(CSC_CTL | CSC_SHELF_SW | 7810 CTL_PR_ERROR, 7811 csevent_LogType_Fault, 7812 csevent_AlertLevel_Yellow, 7813 csevent_FRU_ShelfController, 7814 csevent_FRU_Firmware, 7815 csevent_FRU_Unknown, 7816 "registered keys %d >= key " 7817 "count %d", key_count, 7818 lun->pr_key_count); 7819#endif 7820 key_count++; 7821 continue; 7822 } 7823 memcpy(res_keys->keys[key_count].key, 7824 lun->per_res[i].res_key.key, 7825 ctl_min(sizeof(res_keys->keys[key_count].key), 7826 sizeof(lun->per_res[i].res_key))); 7827 key_count++; 7828 } 7829 break; 7830 } 7831 case SPRI_RR: { // read reservation 7832 struct scsi_per_res_in_rsrv *res; 7833 int tmp_len, header_only; 7834 7835 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7836 7837 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7838 7839 if (lun->flags & CTL_LUN_PR_RESERVED) 7840 { 7841 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7842 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7843 res->header.length); 7844 header_only = 0; 7845 } else { 7846 tmp_len = sizeof(struct scsi_per_res_in_header); 7847 scsi_ulto4b(0, res->header.length); 7848 header_only = 1; 7849 } 7850 7851 /* 7852 * We had to drop the lock to allocate our buffer, which 7853 * leaves time for someone to come in with another 7854 * persistent reservation. (That is unlikely, though, 7855 * since this should be the only persistent reservation 7856 * command active right now.) 7857 */ 7858 if (tmp_len != total_len) { 7859 mtx_unlock(&lun->lun_lock); 7860 free(ctsio->kern_data_ptr, M_CTL); 7861 printf("%s: reservation status changed, retrying\n", 7862 __func__); 7863 goto retry; 7864 } 7865 7866 /* 7867 * No reservation held, so we're done. 7868 */ 7869 if (header_only != 0) 7870 break; 7871 7872 /* 7873 * If the registration is an All Registrants type, the key 7874 * is 0, since it doesn't really matter. 7875 */ 7876 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7877 memcpy(res->data.reservation, 7878 &lun->per_res[lun->pr_res_idx].res_key, 7879 sizeof(struct scsi_per_res_key)); 7880 } 7881 res->data.scopetype = lun->res_type; 7882 break; 7883 } 7884 case SPRI_RC: //report capabilities 7885 { 7886 struct scsi_per_res_cap *res_cap; 7887 uint16_t type_mask; 7888 7889 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7890 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7891 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7892 type_mask = SPRI_TM_WR_EX_AR | 7893 SPRI_TM_EX_AC_RO | 7894 SPRI_TM_WR_EX_RO | 7895 SPRI_TM_EX_AC | 7896 SPRI_TM_WR_EX | 7897 SPRI_TM_EX_AC_AR; 7898 scsi_ulto2b(type_mask, res_cap->type_mask); 7899 break; 7900 } 7901 case SPRI_RS: { // read full status 7902 struct scsi_per_res_in_full *res_status; 7903 struct scsi_per_res_in_full_desc *res_desc; 7904 struct ctl_port *port; 7905 int i, len; 7906 7907 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7908 7909 /* 7910 * We had to drop the lock to allocate our buffer, which 7911 * leaves time for someone to come in with another 7912 * persistent reservation. (That is unlikely, though, 7913 * since this should be the only persistent reservation 7914 * command active right now.) 7915 */ 7916 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7917 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7918 lun->pr_key_count)){ 7919 mtx_unlock(&lun->lun_lock); 7920 free(ctsio->kern_data_ptr, M_CTL); 7921 printf("%s: reservation length changed, retrying\n", 7922 __func__); 7923 goto retry; 7924 } 7925 7926 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7927 7928 res_desc = &res_status->desc[0]; 7929 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7930 if (!lun->per_res[i].registered) 7931 continue; 7932 7933 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7934 sizeof(res_desc->res_key)); 7935 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7936 (lun->pr_res_idx == i || 7937 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7938 res_desc->flags = SPRI_FULL_R_HOLDER; 7939 res_desc->scopetype = lun->res_type; 7940 } 7941 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7942 res_desc->rel_trgt_port_id); 7943 len = 0; 7944 port = softc->ctl_ports[ 7945 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7946 if (port != NULL) 7947 len = ctl_create_iid(port, 7948 i % CTL_MAX_INIT_PER_PORT, 7949 res_desc->transport_id); 7950 scsi_ulto4b(len, res_desc->additional_length); 7951 res_desc = (struct scsi_per_res_in_full_desc *) 7952 &res_desc->transport_id[len]; 7953 } 7954 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7955 res_status->header.length); 7956 break; 7957 } 7958 default: 7959 /* 7960 * This is a bug, because we just checked for this above, 7961 * and should have returned an error. 7962 */ 7963 panic("Invalid PR type %x", cdb->action); 7964 break; /* NOTREACHED */ 7965 } 7966 mtx_unlock(&lun->lun_lock); 7967 7968 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7969 ctsio->be_move_done = ctl_config_move_done; 7970 7971 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7972 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7973 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7974 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7975 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7976 7977 ctl_datamove((union ctl_io *)ctsio); 7978 7979 return (CTL_RETVAL_COMPLETE); 7980} 7981 7982/* 7983 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7984 * it should return. 7985 */ 7986static int 7987ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7988 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7989 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7990 struct scsi_per_res_out_parms* param) 7991{ 7992 union ctl_ha_msg persis_io; 7993 int retval, i; 7994 int isc_retval; 7995 7996 retval = 0; 7997 7998 mtx_lock(&lun->lun_lock); 7999 if (sa_res_key == 0) { 8000 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8001 /* validate scope and type */ 8002 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8003 SPR_LU_SCOPE) { 8004 mtx_unlock(&lun->lun_lock); 8005 ctl_set_invalid_field(/*ctsio*/ ctsio, 8006 /*sks_valid*/ 1, 8007 /*command*/ 1, 8008 /*field*/ 2, 8009 /*bit_valid*/ 1, 8010 /*bit*/ 4); 8011 ctl_done((union ctl_io *)ctsio); 8012 return (1); 8013 } 8014 8015 if (type>8 || type==2 || type==4 || type==0) { 8016 mtx_unlock(&lun->lun_lock); 8017 ctl_set_invalid_field(/*ctsio*/ ctsio, 8018 /*sks_valid*/ 1, 8019 /*command*/ 1, 8020 /*field*/ 2, 8021 /*bit_valid*/ 1, 8022 /*bit*/ 0); 8023 ctl_done((union ctl_io *)ctsio); 8024 return (1); 8025 } 8026 8027 /* temporarily unregister this nexus */ 8028 lun->per_res[residx].registered = 0; 8029 8030 /* 8031 * Unregister everybody else and build UA for 8032 * them 8033 */ 8034 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8035 if (lun->per_res[i].registered == 0) 8036 continue; 8037 8038 if (!persis_offset 8039 && i <CTL_MAX_INITIATORS) 8040 lun->pending_ua[i] |= 8041 CTL_UA_REG_PREEMPT; 8042 else if (persis_offset 8043 && i >= persis_offset) 8044 lun->pending_ua[i-persis_offset] |= 8045 CTL_UA_REG_PREEMPT; 8046 lun->per_res[i].registered = 0; 8047 memset(&lun->per_res[i].res_key, 0, 8048 sizeof(struct scsi_per_res_key)); 8049 } 8050 lun->per_res[residx].registered = 1; 8051 lun->pr_key_count = 1; 8052 lun->res_type = type; 8053 if (lun->res_type != SPR_TYPE_WR_EX_AR 8054 && lun->res_type != SPR_TYPE_EX_AC_AR) 8055 lun->pr_res_idx = residx; 8056 8057 /* send msg to other side */ 8058 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8059 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8060 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8061 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8062 persis_io.pr.pr_info.res_type = type; 8063 memcpy(persis_io.pr.pr_info.sa_res_key, 8064 param->serv_act_res_key, 8065 sizeof(param->serv_act_res_key)); 8066 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8067 &persis_io, sizeof(persis_io), 0)) > 8068 CTL_HA_STATUS_SUCCESS) { 8069 printf("CTL:Persis Out error returned " 8070 "from ctl_ha_msg_send %d\n", 8071 isc_retval); 8072 } 8073 } else { 8074 /* not all registrants */ 8075 mtx_unlock(&lun->lun_lock); 8076 free(ctsio->kern_data_ptr, M_CTL); 8077 ctl_set_invalid_field(ctsio, 8078 /*sks_valid*/ 1, 8079 /*command*/ 0, 8080 /*field*/ 8, 8081 /*bit_valid*/ 0, 8082 /*bit*/ 0); 8083 ctl_done((union ctl_io *)ctsio); 8084 return (1); 8085 } 8086 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8087 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8088 int found = 0; 8089 8090 if (res_key == sa_res_key) { 8091 /* special case */ 8092 /* 8093 * The spec implies this is not good but doesn't 8094 * say what to do. There are two choices either 8095 * generate a res conflict or check condition 8096 * with illegal field in parameter data. Since 8097 * that is what is done when the sa_res_key is 8098 * zero I'll take that approach since this has 8099 * to do with the sa_res_key. 8100 */ 8101 mtx_unlock(&lun->lun_lock); 8102 free(ctsio->kern_data_ptr, M_CTL); 8103 ctl_set_invalid_field(ctsio, 8104 /*sks_valid*/ 1, 8105 /*command*/ 0, 8106 /*field*/ 8, 8107 /*bit_valid*/ 0, 8108 /*bit*/ 0); 8109 ctl_done((union ctl_io *)ctsio); 8110 return (1); 8111 } 8112 8113 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8114 if (lun->per_res[i].registered 8115 && memcmp(param->serv_act_res_key, 8116 lun->per_res[i].res_key.key, 8117 sizeof(struct scsi_per_res_key)) != 0) 8118 continue; 8119 8120 found = 1; 8121 lun->per_res[i].registered = 0; 8122 memset(&lun->per_res[i].res_key, 0, 8123 sizeof(struct scsi_per_res_key)); 8124 lun->pr_key_count--; 8125 8126 if (!persis_offset && i < CTL_MAX_INITIATORS) 8127 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8128 else if (persis_offset && i >= persis_offset) 8129 lun->pending_ua[i-persis_offset] |= 8130 CTL_UA_REG_PREEMPT; 8131 } 8132 if (!found) { 8133 mtx_unlock(&lun->lun_lock); 8134 free(ctsio->kern_data_ptr, M_CTL); 8135 ctl_set_reservation_conflict(ctsio); 8136 ctl_done((union ctl_io *)ctsio); 8137 return (CTL_RETVAL_COMPLETE); 8138 } 8139 /* send msg to other side */ 8140 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8141 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8142 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8143 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8144 persis_io.pr.pr_info.res_type = type; 8145 memcpy(persis_io.pr.pr_info.sa_res_key, 8146 param->serv_act_res_key, 8147 sizeof(param->serv_act_res_key)); 8148 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8149 &persis_io, sizeof(persis_io), 0)) > 8150 CTL_HA_STATUS_SUCCESS) { 8151 printf("CTL:Persis Out error returned from " 8152 "ctl_ha_msg_send %d\n", isc_retval); 8153 } 8154 } else { 8155 /* Reserved but not all registrants */ 8156 /* sa_res_key is res holder */ 8157 if (memcmp(param->serv_act_res_key, 8158 lun->per_res[lun->pr_res_idx].res_key.key, 8159 sizeof(struct scsi_per_res_key)) == 0) { 8160 /* validate scope and type */ 8161 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8162 SPR_LU_SCOPE) { 8163 mtx_unlock(&lun->lun_lock); 8164 ctl_set_invalid_field(/*ctsio*/ ctsio, 8165 /*sks_valid*/ 1, 8166 /*command*/ 1, 8167 /*field*/ 2, 8168 /*bit_valid*/ 1, 8169 /*bit*/ 4); 8170 ctl_done((union ctl_io *)ctsio); 8171 return (1); 8172 } 8173 8174 if (type>8 || type==2 || type==4 || type==0) { 8175 mtx_unlock(&lun->lun_lock); 8176 ctl_set_invalid_field(/*ctsio*/ ctsio, 8177 /*sks_valid*/ 1, 8178 /*command*/ 1, 8179 /*field*/ 2, 8180 /*bit_valid*/ 1, 8181 /*bit*/ 0); 8182 ctl_done((union ctl_io *)ctsio); 8183 return (1); 8184 } 8185 8186 /* 8187 * Do the following: 8188 * if sa_res_key != res_key remove all 8189 * registrants w/sa_res_key and generate UA 8190 * for these registrants(Registrations 8191 * Preempted) if it wasn't an exclusive 8192 * reservation generate UA(Reservations 8193 * Preempted) for all other registered nexuses 8194 * if the type has changed. Establish the new 8195 * reservation and holder. If res_key and 8196 * sa_res_key are the same do the above 8197 * except don't unregister the res holder. 8198 */ 8199 8200 /* 8201 * Temporarily unregister so it won't get 8202 * removed or UA generated 8203 */ 8204 lun->per_res[residx].registered = 0; 8205 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (lun->per_res[i].registered == 0) 8207 continue; 8208 8209 if (memcmp(param->serv_act_res_key, 8210 lun->per_res[i].res_key.key, 8211 sizeof(struct scsi_per_res_key)) == 0) { 8212 lun->per_res[i].registered = 0; 8213 memset(&lun->per_res[i].res_key, 8214 0, 8215 sizeof(struct scsi_per_res_key)); 8216 lun->pr_key_count--; 8217 8218 if (!persis_offset 8219 && i < CTL_MAX_INITIATORS) 8220 lun->pending_ua[i] |= 8221 CTL_UA_REG_PREEMPT; 8222 else if (persis_offset 8223 && i >= persis_offset) 8224 lun->pending_ua[i-persis_offset] |= 8225 CTL_UA_REG_PREEMPT; 8226 } else if (type != lun->res_type 8227 && (lun->res_type == SPR_TYPE_WR_EX_RO 8228 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8229 if (!persis_offset 8230 && i < CTL_MAX_INITIATORS) 8231 lun->pending_ua[i] |= 8232 CTL_UA_RES_RELEASE; 8233 else if (persis_offset 8234 && i >= persis_offset) 8235 lun->pending_ua[ 8236 i-persis_offset] |= 8237 CTL_UA_RES_RELEASE; 8238 } 8239 } 8240 lun->per_res[residx].registered = 1; 8241 lun->res_type = type; 8242 if (lun->res_type != SPR_TYPE_WR_EX_AR 8243 && lun->res_type != SPR_TYPE_EX_AC_AR) 8244 lun->pr_res_idx = residx; 8245 else 8246 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8247 8248 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8249 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8250 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8251 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8252 persis_io.pr.pr_info.res_type = type; 8253 memcpy(persis_io.pr.pr_info.sa_res_key, 8254 param->serv_act_res_key, 8255 sizeof(param->serv_act_res_key)); 8256 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8257 &persis_io, sizeof(persis_io), 0)) > 8258 CTL_HA_STATUS_SUCCESS) { 8259 printf("CTL:Persis Out error returned " 8260 "from ctl_ha_msg_send %d\n", 8261 isc_retval); 8262 } 8263 } else { 8264 /* 8265 * sa_res_key is not the res holder just 8266 * remove registrants 8267 */ 8268 int found=0; 8269 8270 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8271 if (memcmp(param->serv_act_res_key, 8272 lun->per_res[i].res_key.key, 8273 sizeof(struct scsi_per_res_key)) != 0) 8274 continue; 8275 8276 found = 1; 8277 lun->per_res[i].registered = 0; 8278 memset(&lun->per_res[i].res_key, 0, 8279 sizeof(struct scsi_per_res_key)); 8280 lun->pr_key_count--; 8281 8282 if (!persis_offset 8283 && i < CTL_MAX_INITIATORS) 8284 lun->pending_ua[i] |= 8285 CTL_UA_REG_PREEMPT; 8286 else if (persis_offset 8287 && i >= persis_offset) 8288 lun->pending_ua[i-persis_offset] |= 8289 CTL_UA_REG_PREEMPT; 8290 } 8291 8292 if (!found) { 8293 mtx_unlock(&lun->lun_lock); 8294 free(ctsio->kern_data_ptr, M_CTL); 8295 ctl_set_reservation_conflict(ctsio); 8296 ctl_done((union ctl_io *)ctsio); 8297 return (1); 8298 } 8299 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8300 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8301 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8302 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8303 persis_io.pr.pr_info.res_type = type; 8304 memcpy(persis_io.pr.pr_info.sa_res_key, 8305 param->serv_act_res_key, 8306 sizeof(param->serv_act_res_key)); 8307 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8308 &persis_io, sizeof(persis_io), 0)) > 8309 CTL_HA_STATUS_SUCCESS) { 8310 printf("CTL:Persis Out error returned " 8311 "from ctl_ha_msg_send %d\n", 8312 isc_retval); 8313 } 8314 } 8315 } 8316 8317 lun->PRGeneration++; 8318 mtx_unlock(&lun->lun_lock); 8319 8320 return (retval); 8321} 8322 8323static void 8324ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8325{ 8326 int i; 8327 8328 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8329 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8330 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8331 msg->pr.pr_info.sa_res_key, 8332 sizeof(struct scsi_per_res_key)) != 0) { 8333 uint64_t sa_res_key; 8334 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8335 8336 if (sa_res_key == 0) { 8337 /* temporarily unregister this nexus */ 8338 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8339 8340 /* 8341 * Unregister everybody else and build UA for 8342 * them 8343 */ 8344 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8345 if (lun->per_res[i].registered == 0) 8346 continue; 8347 8348 if (!persis_offset 8349 && i < CTL_MAX_INITIATORS) 8350 lun->pending_ua[i] |= 8351 CTL_UA_REG_PREEMPT; 8352 else if (persis_offset && i >= persis_offset) 8353 lun->pending_ua[i - persis_offset] |= 8354 CTL_UA_REG_PREEMPT; 8355 lun->per_res[i].registered = 0; 8356 memset(&lun->per_res[i].res_key, 0, 8357 sizeof(struct scsi_per_res_key)); 8358 } 8359 8360 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8361 lun->pr_key_count = 1; 8362 lun->res_type = msg->pr.pr_info.res_type; 8363 if (lun->res_type != SPR_TYPE_WR_EX_AR 8364 && lun->res_type != SPR_TYPE_EX_AC_AR) 8365 lun->pr_res_idx = msg->pr.pr_info.residx; 8366 } else { 8367 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8368 if (memcmp(msg->pr.pr_info.sa_res_key, 8369 lun->per_res[i].res_key.key, 8370 sizeof(struct scsi_per_res_key)) != 0) 8371 continue; 8372 8373 lun->per_res[i].registered = 0; 8374 memset(&lun->per_res[i].res_key, 0, 8375 sizeof(struct scsi_per_res_key)); 8376 lun->pr_key_count--; 8377 8378 if (!persis_offset 8379 && i < persis_offset) 8380 lun->pending_ua[i] |= 8381 CTL_UA_REG_PREEMPT; 8382 else if (persis_offset 8383 && i >= persis_offset) 8384 lun->pending_ua[i - persis_offset] |= 8385 CTL_UA_REG_PREEMPT; 8386 } 8387 } 8388 } else { 8389 /* 8390 * Temporarily unregister so it won't get removed 8391 * or UA generated 8392 */ 8393 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8394 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8395 if (lun->per_res[i].registered == 0) 8396 continue; 8397 8398 if (memcmp(msg->pr.pr_info.sa_res_key, 8399 lun->per_res[i].res_key.key, 8400 sizeof(struct scsi_per_res_key)) == 0) { 8401 lun->per_res[i].registered = 0; 8402 memset(&lun->per_res[i].res_key, 0, 8403 sizeof(struct scsi_per_res_key)); 8404 lun->pr_key_count--; 8405 if (!persis_offset 8406 && i < CTL_MAX_INITIATORS) 8407 lun->pending_ua[i] |= 8408 CTL_UA_REG_PREEMPT; 8409 else if (persis_offset 8410 && i >= persis_offset) 8411 lun->pending_ua[i - persis_offset] |= 8412 CTL_UA_REG_PREEMPT; 8413 } else if (msg->pr.pr_info.res_type != lun->res_type 8414 && (lun->res_type == SPR_TYPE_WR_EX_RO 8415 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8416 if (!persis_offset 8417 && i < persis_offset) 8418 lun->pending_ua[i] |= 8419 CTL_UA_RES_RELEASE; 8420 else if (persis_offset 8421 && i >= persis_offset) 8422 lun->pending_ua[i - persis_offset] |= 8423 CTL_UA_RES_RELEASE; 8424 } 8425 } 8426 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8427 lun->res_type = msg->pr.pr_info.res_type; 8428 if (lun->res_type != SPR_TYPE_WR_EX_AR 8429 && lun->res_type != SPR_TYPE_EX_AC_AR) 8430 lun->pr_res_idx = msg->pr.pr_info.residx; 8431 else 8432 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8433 } 8434 lun->PRGeneration++; 8435 8436} 8437 8438 8439int 8440ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8441{ 8442 int retval; 8443 int isc_retval; 8444 u_int32_t param_len; 8445 struct scsi_per_res_out *cdb; 8446 struct ctl_lun *lun; 8447 struct scsi_per_res_out_parms* param; 8448 struct ctl_softc *softc; 8449 uint32_t residx; 8450 uint64_t res_key, sa_res_key; 8451 uint8_t type; 8452 union ctl_ha_msg persis_io; 8453 int i; 8454 8455 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8456 8457 retval = CTL_RETVAL_COMPLETE; 8458 8459 softc = control_softc; 8460 8461 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8462 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8463 8464 /* 8465 * We only support whole-LUN scope. The scope & type are ignored for 8466 * register, register and ignore existing key and clear. 8467 * We sometimes ignore scope and type on preempts too!! 8468 * Verify reservation type here as well. 8469 */ 8470 type = cdb->scope_type & SPR_TYPE_MASK; 8471 if ((cdb->action == SPRO_RESERVE) 8472 || (cdb->action == SPRO_RELEASE)) { 8473 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8474 ctl_set_invalid_field(/*ctsio*/ ctsio, 8475 /*sks_valid*/ 1, 8476 /*command*/ 1, 8477 /*field*/ 2, 8478 /*bit_valid*/ 1, 8479 /*bit*/ 4); 8480 ctl_done((union ctl_io *)ctsio); 8481 return (CTL_RETVAL_COMPLETE); 8482 } 8483 8484 if (type>8 || type==2 || type==4 || type==0) { 8485 ctl_set_invalid_field(/*ctsio*/ ctsio, 8486 /*sks_valid*/ 1, 8487 /*command*/ 1, 8488 /*field*/ 2, 8489 /*bit_valid*/ 1, 8490 /*bit*/ 0); 8491 ctl_done((union ctl_io *)ctsio); 8492 return (CTL_RETVAL_COMPLETE); 8493 } 8494 } 8495 8496 param_len = scsi_4btoul(cdb->length); 8497 8498 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8499 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8500 ctsio->kern_data_len = param_len; 8501 ctsio->kern_total_len = param_len; 8502 ctsio->kern_data_resid = 0; 8503 ctsio->kern_rel_offset = 0; 8504 ctsio->kern_sg_entries = 0; 8505 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8506 ctsio->be_move_done = ctl_config_move_done; 8507 ctl_datamove((union ctl_io *)ctsio); 8508 8509 return (CTL_RETVAL_COMPLETE); 8510 } 8511 8512 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8513 8514 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8515 res_key = scsi_8btou64(param->res_key.key); 8516 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8517 8518 /* 8519 * Validate the reservation key here except for SPRO_REG_IGNO 8520 * This must be done for all other service actions 8521 */ 8522 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8523 mtx_lock(&lun->lun_lock); 8524 if (lun->per_res[residx].registered) { 8525 if (memcmp(param->res_key.key, 8526 lun->per_res[residx].res_key.key, 8527 ctl_min(sizeof(param->res_key), 8528 sizeof(lun->per_res[residx].res_key))) != 0) { 8529 /* 8530 * The current key passed in doesn't match 8531 * the one the initiator previously 8532 * registered. 8533 */ 8534 mtx_unlock(&lun->lun_lock); 8535 free(ctsio->kern_data_ptr, M_CTL); 8536 ctl_set_reservation_conflict(ctsio); 8537 ctl_done((union ctl_io *)ctsio); 8538 return (CTL_RETVAL_COMPLETE); 8539 } 8540 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8541 /* 8542 * We are not registered 8543 */ 8544 mtx_unlock(&lun->lun_lock); 8545 free(ctsio->kern_data_ptr, M_CTL); 8546 ctl_set_reservation_conflict(ctsio); 8547 ctl_done((union ctl_io *)ctsio); 8548 return (CTL_RETVAL_COMPLETE); 8549 } else if (res_key != 0) { 8550 /* 8551 * We are not registered and trying to register but 8552 * the register key isn't zero. 8553 */ 8554 mtx_unlock(&lun->lun_lock); 8555 free(ctsio->kern_data_ptr, M_CTL); 8556 ctl_set_reservation_conflict(ctsio); 8557 ctl_done((union ctl_io *)ctsio); 8558 return (CTL_RETVAL_COMPLETE); 8559 } 8560 mtx_unlock(&lun->lun_lock); 8561 } 8562 8563 switch (cdb->action & SPRO_ACTION_MASK) { 8564 case SPRO_REGISTER: 8565 case SPRO_REG_IGNO: { 8566 8567#if 0 8568 printf("Registration received\n"); 8569#endif 8570 8571 /* 8572 * We don't support any of these options, as we report in 8573 * the read capabilities request (see 8574 * ctl_persistent_reserve_in(), above). 8575 */ 8576 if ((param->flags & SPR_SPEC_I_PT) 8577 || (param->flags & SPR_ALL_TG_PT) 8578 || (param->flags & SPR_APTPL)) { 8579 int bit_ptr; 8580 8581 if (param->flags & SPR_APTPL) 8582 bit_ptr = 0; 8583 else if (param->flags & SPR_ALL_TG_PT) 8584 bit_ptr = 2; 8585 else /* SPR_SPEC_I_PT */ 8586 bit_ptr = 3; 8587 8588 free(ctsio->kern_data_ptr, M_CTL); 8589 ctl_set_invalid_field(ctsio, 8590 /*sks_valid*/ 1, 8591 /*command*/ 0, 8592 /*field*/ 20, 8593 /*bit_valid*/ 1, 8594 /*bit*/ bit_ptr); 8595 ctl_done((union ctl_io *)ctsio); 8596 return (CTL_RETVAL_COMPLETE); 8597 } 8598 8599 mtx_lock(&lun->lun_lock); 8600 8601 /* 8602 * The initiator wants to clear the 8603 * key/unregister. 8604 */ 8605 if (sa_res_key == 0) { 8606 if ((res_key == 0 8607 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8608 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8609 && !lun->per_res[residx].registered)) { 8610 mtx_unlock(&lun->lun_lock); 8611 goto done; 8612 } 8613 8614 lun->per_res[residx].registered = 0; 8615 memset(&lun->per_res[residx].res_key, 8616 0, sizeof(lun->per_res[residx].res_key)); 8617 lun->pr_key_count--; 8618 8619 if (residx == lun->pr_res_idx) { 8620 lun->flags &= ~CTL_LUN_PR_RESERVED; 8621 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8622 8623 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8624 || lun->res_type == SPR_TYPE_EX_AC_RO) 8625 && lun->pr_key_count) { 8626 /* 8627 * If the reservation is a registrants 8628 * only type we need to generate a UA 8629 * for other registered inits. The 8630 * sense code should be RESERVATIONS 8631 * RELEASED 8632 */ 8633 8634 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8635 if (lun->per_res[ 8636 i+persis_offset].registered 8637 == 0) 8638 continue; 8639 lun->pending_ua[i] |= 8640 CTL_UA_RES_RELEASE; 8641 } 8642 } 8643 lun->res_type = 0; 8644 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8645 if (lun->pr_key_count==0) { 8646 lun->flags &= ~CTL_LUN_PR_RESERVED; 8647 lun->res_type = 0; 8648 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8649 } 8650 } 8651 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8652 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8653 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8654 persis_io.pr.pr_info.residx = residx; 8655 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8656 &persis_io, sizeof(persis_io), 0 )) > 8657 CTL_HA_STATUS_SUCCESS) { 8658 printf("CTL:Persis Out error returned from " 8659 "ctl_ha_msg_send %d\n", isc_retval); 8660 } 8661 } else /* sa_res_key != 0 */ { 8662 8663 /* 8664 * If we aren't registered currently then increment 8665 * the key count and set the registered flag. 8666 */ 8667 if (!lun->per_res[residx].registered) { 8668 lun->pr_key_count++; 8669 lun->per_res[residx].registered = 1; 8670 } 8671 8672 memcpy(&lun->per_res[residx].res_key, 8673 param->serv_act_res_key, 8674 ctl_min(sizeof(param->serv_act_res_key), 8675 sizeof(lun->per_res[residx].res_key))); 8676 8677 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8678 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8679 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8680 persis_io.pr.pr_info.residx = residx; 8681 memcpy(persis_io.pr.pr_info.sa_res_key, 8682 param->serv_act_res_key, 8683 sizeof(param->serv_act_res_key)); 8684 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8685 &persis_io, sizeof(persis_io), 0)) > 8686 CTL_HA_STATUS_SUCCESS) { 8687 printf("CTL:Persis Out error returned from " 8688 "ctl_ha_msg_send %d\n", isc_retval); 8689 } 8690 } 8691 lun->PRGeneration++; 8692 mtx_unlock(&lun->lun_lock); 8693 8694 break; 8695 } 8696 case SPRO_RESERVE: 8697#if 0 8698 printf("Reserve executed type %d\n", type); 8699#endif 8700 mtx_lock(&lun->lun_lock); 8701 if (lun->flags & CTL_LUN_PR_RESERVED) { 8702 /* 8703 * if this isn't the reservation holder and it's 8704 * not a "all registrants" type or if the type is 8705 * different then we have a conflict 8706 */ 8707 if ((lun->pr_res_idx != residx 8708 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8709 || lun->res_type != type) { 8710 mtx_unlock(&lun->lun_lock); 8711 free(ctsio->kern_data_ptr, M_CTL); 8712 ctl_set_reservation_conflict(ctsio); 8713 ctl_done((union ctl_io *)ctsio); 8714 return (CTL_RETVAL_COMPLETE); 8715 } 8716 mtx_unlock(&lun->lun_lock); 8717 } else /* create a reservation */ { 8718 /* 8719 * If it's not an "all registrants" type record 8720 * reservation holder 8721 */ 8722 if (type != SPR_TYPE_WR_EX_AR 8723 && type != SPR_TYPE_EX_AC_AR) 8724 lun->pr_res_idx = residx; /* Res holder */ 8725 else 8726 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8727 8728 lun->flags |= CTL_LUN_PR_RESERVED; 8729 lun->res_type = type; 8730 8731 mtx_unlock(&lun->lun_lock); 8732 8733 /* send msg to other side */ 8734 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8735 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8736 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8737 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8738 persis_io.pr.pr_info.res_type = type; 8739 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8740 &persis_io, sizeof(persis_io), 0)) > 8741 CTL_HA_STATUS_SUCCESS) { 8742 printf("CTL:Persis Out error returned from " 8743 "ctl_ha_msg_send %d\n", isc_retval); 8744 } 8745 } 8746 break; 8747 8748 case SPRO_RELEASE: 8749 mtx_lock(&lun->lun_lock); 8750 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8751 /* No reservation exists return good status */ 8752 mtx_unlock(&lun->lun_lock); 8753 goto done; 8754 } 8755 /* 8756 * Is this nexus a reservation holder? 8757 */ 8758 if (lun->pr_res_idx != residx 8759 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8760 /* 8761 * not a res holder return good status but 8762 * do nothing 8763 */ 8764 mtx_unlock(&lun->lun_lock); 8765 goto done; 8766 } 8767 8768 if (lun->res_type != type) { 8769 mtx_unlock(&lun->lun_lock); 8770 free(ctsio->kern_data_ptr, M_CTL); 8771 ctl_set_illegal_pr_release(ctsio); 8772 ctl_done((union ctl_io *)ctsio); 8773 return (CTL_RETVAL_COMPLETE); 8774 } 8775 8776 /* okay to release */ 8777 lun->flags &= ~CTL_LUN_PR_RESERVED; 8778 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8779 lun->res_type = 0; 8780 8781 /* 8782 * if this isn't an exclusive access 8783 * res generate UA for all other 8784 * registrants. 8785 */ 8786 if (type != SPR_TYPE_EX_AC 8787 && type != SPR_TYPE_WR_EX) { 8788 /* 8789 * temporarily unregister so we don't generate UA 8790 */ 8791 lun->per_res[residx].registered = 0; 8792 8793 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8794 if (lun->per_res[i+persis_offset].registered 8795 == 0) 8796 continue; 8797 lun->pending_ua[i] |= 8798 CTL_UA_RES_RELEASE; 8799 } 8800 8801 lun->per_res[residx].registered = 1; 8802 } 8803 mtx_unlock(&lun->lun_lock); 8804 /* Send msg to other side */ 8805 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8806 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8807 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8808 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8809 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8810 printf("CTL:Persis Out error returned from " 8811 "ctl_ha_msg_send %d\n", isc_retval); 8812 } 8813 break; 8814 8815 case SPRO_CLEAR: 8816 /* send msg to other side */ 8817 8818 mtx_lock(&lun->lun_lock); 8819 lun->flags &= ~CTL_LUN_PR_RESERVED; 8820 lun->res_type = 0; 8821 lun->pr_key_count = 0; 8822 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8823 8824 8825 memset(&lun->per_res[residx].res_key, 8826 0, sizeof(lun->per_res[residx].res_key)); 8827 lun->per_res[residx].registered = 0; 8828 8829 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8830 if (lun->per_res[i].registered) { 8831 if (!persis_offset && i < CTL_MAX_INITIATORS) 8832 lun->pending_ua[i] |= 8833 CTL_UA_RES_PREEMPT; 8834 else if (persis_offset && i >= persis_offset) 8835 lun->pending_ua[i-persis_offset] |= 8836 CTL_UA_RES_PREEMPT; 8837 8838 memset(&lun->per_res[i].res_key, 8839 0, sizeof(struct scsi_per_res_key)); 8840 lun->per_res[i].registered = 0; 8841 } 8842 lun->PRGeneration++; 8843 mtx_unlock(&lun->lun_lock); 8844 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8845 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8846 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8847 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8848 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8849 printf("CTL:Persis Out error returned from " 8850 "ctl_ha_msg_send %d\n", isc_retval); 8851 } 8852 break; 8853 8854 case SPRO_PREEMPT: { 8855 int nretval; 8856 8857 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8858 residx, ctsio, cdb, param); 8859 if (nretval != 0) 8860 return (CTL_RETVAL_COMPLETE); 8861 break; 8862 } 8863 default: 8864 panic("Invalid PR type %x", cdb->action); 8865 } 8866 8867done: 8868 free(ctsio->kern_data_ptr, M_CTL); 8869 ctl_set_success(ctsio); 8870 ctl_done((union ctl_io *)ctsio); 8871 8872 return (retval); 8873} 8874 8875/* 8876 * This routine is for handling a message from the other SC pertaining to 8877 * persistent reserve out. All the error checking will have been done 8878 * so only perorming the action need be done here to keep the two 8879 * in sync. 8880 */ 8881static void 8882ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8883{ 8884 struct ctl_lun *lun; 8885 struct ctl_softc *softc; 8886 int i; 8887 uint32_t targ_lun; 8888 8889 softc = control_softc; 8890 8891 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8892 lun = softc->ctl_luns[targ_lun]; 8893 mtx_lock(&lun->lun_lock); 8894 switch(msg->pr.pr_info.action) { 8895 case CTL_PR_REG_KEY: 8896 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8897 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8898 lun->pr_key_count++; 8899 } 8900 lun->PRGeneration++; 8901 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8902 msg->pr.pr_info.sa_res_key, 8903 sizeof(struct scsi_per_res_key)); 8904 break; 8905 8906 case CTL_PR_UNREG_KEY: 8907 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8908 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8909 0, sizeof(struct scsi_per_res_key)); 8910 lun->pr_key_count--; 8911 8912 /* XXX Need to see if the reservation has been released */ 8913 /* if so do we need to generate UA? */ 8914 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8915 lun->flags &= ~CTL_LUN_PR_RESERVED; 8916 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8917 8918 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8919 || lun->res_type == SPR_TYPE_EX_AC_RO) 8920 && lun->pr_key_count) { 8921 /* 8922 * If the reservation is a registrants 8923 * only type we need to generate a UA 8924 * for other registered inits. The 8925 * sense code should be RESERVATIONS 8926 * RELEASED 8927 */ 8928 8929 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8930 if (lun->per_res[i+ 8931 persis_offset].registered == 0) 8932 continue; 8933 8934 lun->pending_ua[i] |= 8935 CTL_UA_RES_RELEASE; 8936 } 8937 } 8938 lun->res_type = 0; 8939 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8940 if (lun->pr_key_count==0) { 8941 lun->flags &= ~CTL_LUN_PR_RESERVED; 8942 lun->res_type = 0; 8943 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8944 } 8945 } 8946 lun->PRGeneration++; 8947 break; 8948 8949 case CTL_PR_RESERVE: 8950 lun->flags |= CTL_LUN_PR_RESERVED; 8951 lun->res_type = msg->pr.pr_info.res_type; 8952 lun->pr_res_idx = msg->pr.pr_info.residx; 8953 8954 break; 8955 8956 case CTL_PR_RELEASE: 8957 /* 8958 * if this isn't an exclusive access res generate UA for all 8959 * other registrants. 8960 */ 8961 if (lun->res_type != SPR_TYPE_EX_AC 8962 && lun->res_type != SPR_TYPE_WR_EX) { 8963 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8964 if (lun->per_res[i+persis_offset].registered) 8965 lun->pending_ua[i] |= 8966 CTL_UA_RES_RELEASE; 8967 } 8968 8969 lun->flags &= ~CTL_LUN_PR_RESERVED; 8970 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8971 lun->res_type = 0; 8972 break; 8973 8974 case CTL_PR_PREEMPT: 8975 ctl_pro_preempt_other(lun, msg); 8976 break; 8977 case CTL_PR_CLEAR: 8978 lun->flags &= ~CTL_LUN_PR_RESERVED; 8979 lun->res_type = 0; 8980 lun->pr_key_count = 0; 8981 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8982 8983 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8984 if (lun->per_res[i].registered == 0) 8985 continue; 8986 if (!persis_offset 8987 && i < CTL_MAX_INITIATORS) 8988 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8989 else if (persis_offset 8990 && i >= persis_offset) 8991 lun->pending_ua[i-persis_offset] |= 8992 CTL_UA_RES_PREEMPT; 8993 memset(&lun->per_res[i].res_key, 0, 8994 sizeof(struct scsi_per_res_key)); 8995 lun->per_res[i].registered = 0; 8996 } 8997 lun->PRGeneration++; 8998 break; 8999 } 9000 9001 mtx_unlock(&lun->lun_lock); 9002} 9003 9004int 9005ctl_read_write(struct ctl_scsiio *ctsio) 9006{ 9007 struct ctl_lun *lun; 9008 struct ctl_lba_len_flags *lbalen; 9009 uint64_t lba; 9010 uint32_t num_blocks; 9011 int flags, retval; 9012 int isread; 9013 9014 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9015 9016 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9017 9018 flags = 0; 9019 retval = CTL_RETVAL_COMPLETE; 9020 9021 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9022 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9023 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9024 uint32_t residx; 9025 9026 /* 9027 * XXX KDM need a lock here. 9028 */ 9029 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9030 if ((lun->res_type == SPR_TYPE_EX_AC 9031 && residx != lun->pr_res_idx) 9032 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9033 || lun->res_type == SPR_TYPE_EX_AC_AR) 9034 && !lun->per_res[residx].registered)) { 9035 ctl_set_reservation_conflict(ctsio); 9036 ctl_done((union ctl_io *)ctsio); 9037 return (CTL_RETVAL_COMPLETE); 9038 } 9039 } 9040 9041 switch (ctsio->cdb[0]) { 9042 case READ_6: 9043 case WRITE_6: { 9044 struct scsi_rw_6 *cdb; 9045 9046 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9047 9048 lba = scsi_3btoul(cdb->addr); 9049 /* only 5 bits are valid in the most significant address byte */ 9050 lba &= 0x1fffff; 9051 num_blocks = cdb->length; 9052 /* 9053 * This is correct according to SBC-2. 9054 */ 9055 if (num_blocks == 0) 9056 num_blocks = 256; 9057 break; 9058 } 9059 case READ_10: 9060 case WRITE_10: { 9061 struct scsi_rw_10 *cdb; 9062 9063 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9064 if (cdb->byte2 & SRW10_FUA) 9065 flags |= CTL_LLF_FUA; 9066 if (cdb->byte2 & SRW10_DPO) 9067 flags |= CTL_LLF_DPO; 9068 lba = scsi_4btoul(cdb->addr); 9069 num_blocks = scsi_2btoul(cdb->length); 9070 break; 9071 } 9072 case WRITE_VERIFY_10: { 9073 struct scsi_write_verify_10 *cdb; 9074 9075 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9076 flags |= CTL_LLF_FUA; 9077 if (cdb->byte2 & SWV_DPO) 9078 flags |= CTL_LLF_DPO; 9079 lba = scsi_4btoul(cdb->addr); 9080 num_blocks = scsi_2btoul(cdb->length); 9081 break; 9082 } 9083 case READ_12: 9084 case WRITE_12: { 9085 struct scsi_rw_12 *cdb; 9086 9087 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9088 if (cdb->byte2 & SRW12_FUA) 9089 flags |= CTL_LLF_FUA; 9090 if (cdb->byte2 & SRW12_DPO) 9091 flags |= CTL_LLF_DPO; 9092 lba = scsi_4btoul(cdb->addr); 9093 num_blocks = scsi_4btoul(cdb->length); 9094 break; 9095 } 9096 case WRITE_VERIFY_12: { 9097 struct scsi_write_verify_12 *cdb; 9098 9099 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9100 flags |= CTL_LLF_FUA; 9101 if (cdb->byte2 & SWV_DPO) 9102 flags |= CTL_LLF_DPO; 9103 lba = scsi_4btoul(cdb->addr); 9104 num_blocks = scsi_4btoul(cdb->length); 9105 break; 9106 } 9107 case READ_16: 9108 case WRITE_16: { 9109 struct scsi_rw_16 *cdb; 9110 9111 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9112 if (cdb->byte2 & SRW12_FUA) 9113 flags |= CTL_LLF_FUA; 9114 if (cdb->byte2 & SRW12_DPO) 9115 flags |= CTL_LLF_DPO; 9116 lba = scsi_8btou64(cdb->addr); 9117 num_blocks = scsi_4btoul(cdb->length); 9118 break; 9119 } 9120 case WRITE_VERIFY_16: { 9121 struct scsi_write_verify_16 *cdb; 9122 9123 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9124 flags |= CTL_LLF_FUA; 9125 if (cdb->byte2 & SWV_DPO) 9126 flags |= CTL_LLF_DPO; 9127 lba = scsi_8btou64(cdb->addr); 9128 num_blocks = scsi_4btoul(cdb->length); 9129 break; 9130 } 9131 default: 9132 /* 9133 * We got a command we don't support. This shouldn't 9134 * happen, commands should be filtered out above us. 9135 */ 9136 ctl_set_invalid_opcode(ctsio); 9137 ctl_done((union ctl_io *)ctsio); 9138 9139 return (CTL_RETVAL_COMPLETE); 9140 break; /* NOTREACHED */ 9141 } 9142 9143 /* 9144 * The first check is to make sure we're in bounds, the second 9145 * check is to catch wrap-around problems. If the lba + num blocks 9146 * is less than the lba, then we've wrapped around and the block 9147 * range is invalid anyway. 9148 */ 9149 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9150 || ((lba + num_blocks) < lba)) { 9151 ctl_set_lba_out_of_range(ctsio); 9152 ctl_done((union ctl_io *)ctsio); 9153 return (CTL_RETVAL_COMPLETE); 9154 } 9155 9156 /* 9157 * According to SBC-3, a transfer length of 0 is not an error. 9158 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9159 * translates to 256 blocks for those commands. 9160 */ 9161 if (num_blocks == 0) { 9162 ctl_set_success(ctsio); 9163 ctl_done((union ctl_io *)ctsio); 9164 return (CTL_RETVAL_COMPLETE); 9165 } 9166 9167 /* Set FUA and/or DPO if caches are disabled. */ 9168 if (isread) { 9169 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9170 SCP_RCD) != 0) 9171 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9172 } else { 9173 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9174 SCP_WCE) == 0) 9175 flags |= CTL_LLF_FUA; 9176 } 9177 9178 lbalen = (struct ctl_lba_len_flags *) 9179 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9180 lbalen->lba = lba; 9181 lbalen->len = num_blocks; 9182 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9183 9184 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9185 ctsio->kern_rel_offset = 0; 9186 9187 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9188 9189 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9190 9191 return (retval); 9192} 9193 9194static int 9195ctl_cnw_cont(union ctl_io *io) 9196{ 9197 struct ctl_scsiio *ctsio; 9198 struct ctl_lun *lun; 9199 struct ctl_lba_len_flags *lbalen; 9200 int retval; 9201 9202 ctsio = &io->scsiio; 9203 ctsio->io_hdr.status = CTL_STATUS_NONE; 9204 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9205 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9206 lbalen = (struct ctl_lba_len_flags *) 9207 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9208 lbalen->flags &= ~CTL_LLF_COMPARE; 9209 lbalen->flags |= CTL_LLF_WRITE; 9210 9211 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9212 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9213 return (retval); 9214} 9215 9216int 9217ctl_cnw(struct ctl_scsiio *ctsio) 9218{ 9219 struct ctl_lun *lun; 9220 struct ctl_lba_len_flags *lbalen; 9221 uint64_t lba; 9222 uint32_t num_blocks; 9223 int flags, retval; 9224 9225 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9226 9227 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9228 9229 flags = 0; 9230 retval = CTL_RETVAL_COMPLETE; 9231 9232 switch (ctsio->cdb[0]) { 9233 case COMPARE_AND_WRITE: { 9234 struct scsi_compare_and_write *cdb; 9235 9236 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9237 if (cdb->byte2 & SRW10_FUA) 9238 flags |= CTL_LLF_FUA; 9239 if (cdb->byte2 & SRW10_DPO) 9240 flags |= CTL_LLF_DPO; 9241 lba = scsi_8btou64(cdb->addr); 9242 num_blocks = cdb->length; 9243 break; 9244 } 9245 default: 9246 /* 9247 * We got a command we don't support. This shouldn't 9248 * happen, commands should be filtered out above us. 9249 */ 9250 ctl_set_invalid_opcode(ctsio); 9251 ctl_done((union ctl_io *)ctsio); 9252 9253 return (CTL_RETVAL_COMPLETE); 9254 break; /* NOTREACHED */ 9255 } 9256 9257 /* 9258 * The first check is to make sure we're in bounds, the second 9259 * check is to catch wrap-around problems. If the lba + num blocks 9260 * is less than the lba, then we've wrapped around and the block 9261 * range is invalid anyway. 9262 */ 9263 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9264 || ((lba + num_blocks) < lba)) { 9265 ctl_set_lba_out_of_range(ctsio); 9266 ctl_done((union ctl_io *)ctsio); 9267 return (CTL_RETVAL_COMPLETE); 9268 } 9269 9270 /* 9271 * According to SBC-3, a transfer length of 0 is not an error. 9272 */ 9273 if (num_blocks == 0) { 9274 ctl_set_success(ctsio); 9275 ctl_done((union ctl_io *)ctsio); 9276 return (CTL_RETVAL_COMPLETE); 9277 } 9278 9279 /* Set FUA if write cache is disabled. */ 9280 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9281 SCP_WCE) == 0) 9282 flags |= CTL_LLF_FUA; 9283 9284 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9285 ctsio->kern_rel_offset = 0; 9286 9287 /* 9288 * Set the IO_CONT flag, so that if this I/O gets passed to 9289 * ctl_data_submit_done(), it'll get passed back to 9290 * ctl_ctl_cnw_cont() for further processing. 9291 */ 9292 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9293 ctsio->io_cont = ctl_cnw_cont; 9294 9295 lbalen = (struct ctl_lba_len_flags *) 9296 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9297 lbalen->lba = lba; 9298 lbalen->len = num_blocks; 9299 lbalen->flags = CTL_LLF_COMPARE | flags; 9300 9301 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9302 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9303 return (retval); 9304} 9305 9306int 9307ctl_verify(struct ctl_scsiio *ctsio) 9308{ 9309 struct ctl_lun *lun; 9310 struct ctl_lba_len_flags *lbalen; 9311 uint64_t lba; 9312 uint32_t num_blocks; 9313 int bytchk, flags; 9314 int retval; 9315 9316 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9317 9318 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9319 9320 bytchk = 0; 9321 flags = CTL_LLF_FUA; 9322 retval = CTL_RETVAL_COMPLETE; 9323 9324 switch (ctsio->cdb[0]) { 9325 case VERIFY_10: { 9326 struct scsi_verify_10 *cdb; 9327 9328 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9329 if (cdb->byte2 & SVFY_BYTCHK) 9330 bytchk = 1; 9331 if (cdb->byte2 & SVFY_DPO) 9332 flags |= CTL_LLF_DPO; 9333 lba = scsi_4btoul(cdb->addr); 9334 num_blocks = scsi_2btoul(cdb->length); 9335 break; 9336 } 9337 case VERIFY_12: { 9338 struct scsi_verify_12 *cdb; 9339 9340 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9341 if (cdb->byte2 & SVFY_BYTCHK) 9342 bytchk = 1; 9343 if (cdb->byte2 & SVFY_DPO) 9344 flags |= CTL_LLF_DPO; 9345 lba = scsi_4btoul(cdb->addr); 9346 num_blocks = scsi_4btoul(cdb->length); 9347 break; 9348 } 9349 case VERIFY_16: { 9350 struct scsi_rw_16 *cdb; 9351 9352 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9353 if (cdb->byte2 & SVFY_BYTCHK) 9354 bytchk = 1; 9355 if (cdb->byte2 & SVFY_DPO) 9356 flags |= CTL_LLF_DPO; 9357 lba = scsi_8btou64(cdb->addr); 9358 num_blocks = scsi_4btoul(cdb->length); 9359 break; 9360 } 9361 default: 9362 /* 9363 * We got a command we don't support. This shouldn't 9364 * happen, commands should be filtered out above us. 9365 */ 9366 ctl_set_invalid_opcode(ctsio); 9367 ctl_done((union ctl_io *)ctsio); 9368 return (CTL_RETVAL_COMPLETE); 9369 } 9370 9371 /* 9372 * The first check is to make sure we're in bounds, the second 9373 * check is to catch wrap-around problems. If the lba + num blocks 9374 * is less than the lba, then we've wrapped around and the block 9375 * range is invalid anyway. 9376 */ 9377 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9378 || ((lba + num_blocks) < lba)) { 9379 ctl_set_lba_out_of_range(ctsio); 9380 ctl_done((union ctl_io *)ctsio); 9381 return (CTL_RETVAL_COMPLETE); 9382 } 9383 9384 /* 9385 * According to SBC-3, a transfer length of 0 is not an error. 9386 */ 9387 if (num_blocks == 0) { 9388 ctl_set_success(ctsio); 9389 ctl_done((union ctl_io *)ctsio); 9390 return (CTL_RETVAL_COMPLETE); 9391 } 9392 9393 lbalen = (struct ctl_lba_len_flags *) 9394 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9395 lbalen->lba = lba; 9396 lbalen->len = num_blocks; 9397 if (bytchk) { 9398 lbalen->flags = CTL_LLF_COMPARE | flags; 9399 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9400 } else { 9401 lbalen->flags = CTL_LLF_VERIFY | flags; 9402 ctsio->kern_total_len = 0; 9403 } 9404 ctsio->kern_rel_offset = 0; 9405 9406 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9407 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9408 return (retval); 9409} 9410 9411int 9412ctl_report_luns(struct ctl_scsiio *ctsio) 9413{ 9414 struct scsi_report_luns *cdb; 9415 struct scsi_report_luns_data *lun_data; 9416 struct ctl_lun *lun, *request_lun; 9417 int num_luns, retval; 9418 uint32_t alloc_len, lun_datalen; 9419 int num_filled, well_known; 9420 uint32_t initidx, targ_lun_id, lun_id; 9421 9422 retval = CTL_RETVAL_COMPLETE; 9423 well_known = 0; 9424 9425 cdb = (struct scsi_report_luns *)ctsio->cdb; 9426 9427 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9428 9429 mtx_lock(&control_softc->ctl_lock); 9430 num_luns = control_softc->num_luns; 9431 mtx_unlock(&control_softc->ctl_lock); 9432 9433 switch (cdb->select_report) { 9434 case RPL_REPORT_DEFAULT: 9435 case RPL_REPORT_ALL: 9436 break; 9437 case RPL_REPORT_WELLKNOWN: 9438 well_known = 1; 9439 num_luns = 0; 9440 break; 9441 default: 9442 ctl_set_invalid_field(ctsio, 9443 /*sks_valid*/ 1, 9444 /*command*/ 1, 9445 /*field*/ 2, 9446 /*bit_valid*/ 0, 9447 /*bit*/ 0); 9448 ctl_done((union ctl_io *)ctsio); 9449 return (retval); 9450 break; /* NOTREACHED */ 9451 } 9452 9453 alloc_len = scsi_4btoul(cdb->length); 9454 /* 9455 * The initiator has to allocate at least 16 bytes for this request, 9456 * so he can at least get the header and the first LUN. Otherwise 9457 * we reject the request (per SPC-3 rev 14, section 6.21). 9458 */ 9459 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9460 sizeof(struct scsi_report_luns_lundata))) { 9461 ctl_set_invalid_field(ctsio, 9462 /*sks_valid*/ 1, 9463 /*command*/ 1, 9464 /*field*/ 6, 9465 /*bit_valid*/ 0, 9466 /*bit*/ 0); 9467 ctl_done((union ctl_io *)ctsio); 9468 return (retval); 9469 } 9470 9471 request_lun = (struct ctl_lun *) 9472 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9473 9474 lun_datalen = sizeof(*lun_data) + 9475 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9476 9477 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9478 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9479 ctsio->kern_sg_entries = 0; 9480 9481 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9482 9483 mtx_lock(&control_softc->ctl_lock); 9484 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9485 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9486 if (lun_id >= CTL_MAX_LUNS) 9487 continue; 9488 lun = control_softc->ctl_luns[lun_id]; 9489 if (lun == NULL) 9490 continue; 9491 9492 if (targ_lun_id <= 0xff) { 9493 /* 9494 * Peripheral addressing method, bus number 0. 9495 */ 9496 lun_data->luns[num_filled].lundata[0] = 9497 RPL_LUNDATA_ATYP_PERIPH; 9498 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9499 num_filled++; 9500 } else if (targ_lun_id <= 0x3fff) { 9501 /* 9502 * Flat addressing method. 9503 */ 9504 lun_data->luns[num_filled].lundata[0] = 9505 RPL_LUNDATA_ATYP_FLAT | 9506 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9507#ifdef OLDCTLHEADERS 9508 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9509 (targ_lun_id & SRLD_BUS_LUN_MASK); 9510#endif 9511 lun_data->luns[num_filled].lundata[1] = 9512#ifdef OLDCTLHEADERS 9513 targ_lun_id >> SRLD_BUS_LUN_BITS; 9514#endif 9515 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9516 num_filled++; 9517 } else { 9518 printf("ctl_report_luns: bogus LUN number %jd, " 9519 "skipping\n", (intmax_t)targ_lun_id); 9520 } 9521 /* 9522 * According to SPC-3, rev 14 section 6.21: 9523 * 9524 * "The execution of a REPORT LUNS command to any valid and 9525 * installed logical unit shall clear the REPORTED LUNS DATA 9526 * HAS CHANGED unit attention condition for all logical 9527 * units of that target with respect to the requesting 9528 * initiator. A valid and installed logical unit is one 9529 * having a PERIPHERAL QUALIFIER of 000b in the standard 9530 * INQUIRY data (see 6.4.2)." 9531 * 9532 * If request_lun is NULL, the LUN this report luns command 9533 * was issued to is either disabled or doesn't exist. In that 9534 * case, we shouldn't clear any pending lun change unit 9535 * attention. 9536 */ 9537 if (request_lun != NULL) { 9538 mtx_lock(&lun->lun_lock); 9539 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9540 mtx_unlock(&lun->lun_lock); 9541 } 9542 } 9543 mtx_unlock(&control_softc->ctl_lock); 9544 9545 /* 9546 * It's quite possible that we've returned fewer LUNs than we allocated 9547 * space for. Trim it. 9548 */ 9549 lun_datalen = sizeof(*lun_data) + 9550 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9551 9552 if (lun_datalen < alloc_len) { 9553 ctsio->residual = alloc_len - lun_datalen; 9554 ctsio->kern_data_len = lun_datalen; 9555 ctsio->kern_total_len = lun_datalen; 9556 } else { 9557 ctsio->residual = 0; 9558 ctsio->kern_data_len = alloc_len; 9559 ctsio->kern_total_len = alloc_len; 9560 } 9561 ctsio->kern_data_resid = 0; 9562 ctsio->kern_rel_offset = 0; 9563 ctsio->kern_sg_entries = 0; 9564 9565 /* 9566 * We set this to the actual data length, regardless of how much 9567 * space we actually have to return results. If the user looks at 9568 * this value, he'll know whether or not he allocated enough space 9569 * and reissue the command if necessary. We don't support well 9570 * known logical units, so if the user asks for that, return none. 9571 */ 9572 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9573 9574 /* 9575 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9576 * this request. 9577 */ 9578 ctsio->scsi_status = SCSI_STATUS_OK; 9579 9580 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9581 ctsio->be_move_done = ctl_config_move_done; 9582 ctl_datamove((union ctl_io *)ctsio); 9583 9584 return (retval); 9585} 9586 9587int 9588ctl_request_sense(struct ctl_scsiio *ctsio) 9589{ 9590 struct scsi_request_sense *cdb; 9591 struct scsi_sense_data *sense_ptr; 9592 struct ctl_lun *lun; 9593 uint32_t initidx; 9594 int have_error; 9595 scsi_sense_data_type sense_format; 9596 9597 cdb = (struct scsi_request_sense *)ctsio->cdb; 9598 9599 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9600 9601 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9602 9603 /* 9604 * Determine which sense format the user wants. 9605 */ 9606 if (cdb->byte2 & SRS_DESC) 9607 sense_format = SSD_TYPE_DESC; 9608 else 9609 sense_format = SSD_TYPE_FIXED; 9610 9611 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9612 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9613 ctsio->kern_sg_entries = 0; 9614 9615 /* 9616 * struct scsi_sense_data, which is currently set to 256 bytes, is 9617 * larger than the largest allowed value for the length field in the 9618 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9619 */ 9620 ctsio->residual = 0; 9621 ctsio->kern_data_len = cdb->length; 9622 ctsio->kern_total_len = cdb->length; 9623 9624 ctsio->kern_data_resid = 0; 9625 ctsio->kern_rel_offset = 0; 9626 ctsio->kern_sg_entries = 0; 9627 9628 /* 9629 * If we don't have a LUN, we don't have any pending sense. 9630 */ 9631 if (lun == NULL) 9632 goto no_sense; 9633 9634 have_error = 0; 9635 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9636 /* 9637 * Check for pending sense, and then for pending unit attentions. 9638 * Pending sense gets returned first, then pending unit attentions. 9639 */ 9640 mtx_lock(&lun->lun_lock); 9641#ifdef CTL_WITH_CA 9642 if (ctl_is_set(lun->have_ca, initidx)) { 9643 scsi_sense_data_type stored_format; 9644 9645 /* 9646 * Check to see which sense format was used for the stored 9647 * sense data. 9648 */ 9649 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9650 9651 /* 9652 * If the user requested a different sense format than the 9653 * one we stored, then we need to convert it to the other 9654 * format. If we're going from descriptor to fixed format 9655 * sense data, we may lose things in translation, depending 9656 * on what options were used. 9657 * 9658 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9659 * for some reason we'll just copy it out as-is. 9660 */ 9661 if ((stored_format == SSD_TYPE_FIXED) 9662 && (sense_format == SSD_TYPE_DESC)) 9663 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9664 &lun->pending_sense[initidx], 9665 (struct scsi_sense_data_desc *)sense_ptr); 9666 else if ((stored_format == SSD_TYPE_DESC) 9667 && (sense_format == SSD_TYPE_FIXED)) 9668 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9669 &lun->pending_sense[initidx], 9670 (struct scsi_sense_data_fixed *)sense_ptr); 9671 else 9672 memcpy(sense_ptr, &lun->pending_sense[initidx], 9673 ctl_min(sizeof(*sense_ptr), 9674 sizeof(lun->pending_sense[initidx]))); 9675 9676 ctl_clear_mask(lun->have_ca, initidx); 9677 have_error = 1; 9678 } else 9679#endif 9680 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9681 ctl_ua_type ua_type; 9682 9683 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9684 sense_ptr, sense_format); 9685 if (ua_type != CTL_UA_NONE) { 9686 have_error = 1; 9687 /* We're reporting this UA, so clear it */ 9688 lun->pending_ua[initidx] &= ~ua_type; 9689 } 9690 } 9691 mtx_unlock(&lun->lun_lock); 9692 9693 /* 9694 * We already have a pending error, return it. 9695 */ 9696 if (have_error != 0) { 9697 /* 9698 * We report the SCSI status as OK, since the status of the 9699 * request sense command itself is OK. 9700 */ 9701 ctsio->scsi_status = SCSI_STATUS_OK; 9702 9703 /* 9704 * We report 0 for the sense length, because we aren't doing 9705 * autosense in this case. We're reporting sense as 9706 * parameter data. 9707 */ 9708 ctsio->sense_len = 0; 9709 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9710 ctsio->be_move_done = ctl_config_move_done; 9711 ctl_datamove((union ctl_io *)ctsio); 9712 9713 return (CTL_RETVAL_COMPLETE); 9714 } 9715 9716no_sense: 9717 9718 /* 9719 * No sense information to report, so we report that everything is 9720 * okay. 9721 */ 9722 ctl_set_sense_data(sense_ptr, 9723 lun, 9724 sense_format, 9725 /*current_error*/ 1, 9726 /*sense_key*/ SSD_KEY_NO_SENSE, 9727 /*asc*/ 0x00, 9728 /*ascq*/ 0x00, 9729 SSD_ELEM_NONE); 9730 9731 ctsio->scsi_status = SCSI_STATUS_OK; 9732 9733 /* 9734 * We report 0 for the sense length, because we aren't doing 9735 * autosense in this case. We're reporting sense as parameter data. 9736 */ 9737 ctsio->sense_len = 0; 9738 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9739 ctsio->be_move_done = ctl_config_move_done; 9740 ctl_datamove((union ctl_io *)ctsio); 9741 9742 return (CTL_RETVAL_COMPLETE); 9743} 9744 9745int 9746ctl_tur(struct ctl_scsiio *ctsio) 9747{ 9748 struct ctl_lun *lun; 9749 9750 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9751 9752 CTL_DEBUG_PRINT(("ctl_tur\n")); 9753 9754 if (lun == NULL) 9755 return (EINVAL); 9756 9757 ctsio->scsi_status = SCSI_STATUS_OK; 9758 ctsio->io_hdr.status = CTL_SUCCESS; 9759 9760 ctl_done((union ctl_io *)ctsio); 9761 9762 return (CTL_RETVAL_COMPLETE); 9763} 9764 9765#ifdef notyet 9766static int 9767ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9768{ 9769 9770} 9771#endif 9772 9773static int 9774ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9775{ 9776 struct scsi_vpd_supported_pages *pages; 9777 int sup_page_size; 9778 struct ctl_lun *lun; 9779 9780 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9781 9782 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9783 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9784 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9785 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9786 ctsio->kern_sg_entries = 0; 9787 9788 if (sup_page_size < alloc_len) { 9789 ctsio->residual = alloc_len - sup_page_size; 9790 ctsio->kern_data_len = sup_page_size; 9791 ctsio->kern_total_len = sup_page_size; 9792 } else { 9793 ctsio->residual = 0; 9794 ctsio->kern_data_len = alloc_len; 9795 ctsio->kern_total_len = alloc_len; 9796 } 9797 ctsio->kern_data_resid = 0; 9798 ctsio->kern_rel_offset = 0; 9799 ctsio->kern_sg_entries = 0; 9800 9801 /* 9802 * The control device is always connected. The disk device, on the 9803 * other hand, may not be online all the time. Need to change this 9804 * to figure out whether the disk device is actually online or not. 9805 */ 9806 if (lun != NULL) 9807 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9808 lun->be_lun->lun_type; 9809 else 9810 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9811 9812 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9813 /* Supported VPD pages */ 9814 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9815 /* Serial Number */ 9816 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9817 /* Device Identification */ 9818 pages->page_list[2] = SVPD_DEVICE_ID; 9819 /* Extended INQUIRY Data */ 9820 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9821 /* Mode Page Policy */ 9822 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9823 /* SCSI Ports */ 9824 pages->page_list[5] = SVPD_SCSI_PORTS; 9825 /* Third-party Copy */ 9826 pages->page_list[6] = SVPD_SCSI_TPC; 9827 /* Block limits */ 9828 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9829 /* Block Device Characteristics */ 9830 pages->page_list[8] = SVPD_BDC; 9831 /* Logical Block Provisioning */ 9832 pages->page_list[9] = SVPD_LBP; 9833 9834 ctsio->scsi_status = SCSI_STATUS_OK; 9835 9836 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9837 ctsio->be_move_done = ctl_config_move_done; 9838 ctl_datamove((union ctl_io *)ctsio); 9839 9840 return (CTL_RETVAL_COMPLETE); 9841} 9842 9843static int 9844ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9845{ 9846 struct scsi_vpd_unit_serial_number *sn_ptr; 9847 struct ctl_lun *lun; 9848 9849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9850 9851 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9852 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9853 ctsio->kern_sg_entries = 0; 9854 9855 if (sizeof(*sn_ptr) < alloc_len) { 9856 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9857 ctsio->kern_data_len = sizeof(*sn_ptr); 9858 ctsio->kern_total_len = sizeof(*sn_ptr); 9859 } else { 9860 ctsio->residual = 0; 9861 ctsio->kern_data_len = alloc_len; 9862 ctsio->kern_total_len = alloc_len; 9863 } 9864 ctsio->kern_data_resid = 0; 9865 ctsio->kern_rel_offset = 0; 9866 ctsio->kern_sg_entries = 0; 9867 9868 /* 9869 * The control device is always connected. The disk device, on the 9870 * other hand, may not be online all the time. Need to change this 9871 * to figure out whether the disk device is actually online or not. 9872 */ 9873 if (lun != NULL) 9874 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9875 lun->be_lun->lun_type; 9876 else 9877 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9878 9879 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9880 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9881 /* 9882 * If we don't have a LUN, we just leave the serial number as 9883 * all spaces. 9884 */ 9885 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9886 if (lun != NULL) { 9887 strncpy((char *)sn_ptr->serial_num, 9888 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9889 } 9890 ctsio->scsi_status = SCSI_STATUS_OK; 9891 9892 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9893 ctsio->be_move_done = ctl_config_move_done; 9894 ctl_datamove((union ctl_io *)ctsio); 9895 9896 return (CTL_RETVAL_COMPLETE); 9897} 9898 9899 9900static int 9901ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9902{ 9903 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9904 struct ctl_lun *lun; 9905 int data_len; 9906 9907 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9908 9909 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9910 sizeof(struct scsi_vpd_mode_page_policy_descr); 9911 9912 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9913 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9914 ctsio->kern_sg_entries = 0; 9915 9916 if (data_len < alloc_len) { 9917 ctsio->residual = alloc_len - data_len; 9918 ctsio->kern_data_len = data_len; 9919 ctsio->kern_total_len = data_len; 9920 } else { 9921 ctsio->residual = 0; 9922 ctsio->kern_data_len = alloc_len; 9923 ctsio->kern_total_len = alloc_len; 9924 } 9925 ctsio->kern_data_resid = 0; 9926 ctsio->kern_rel_offset = 0; 9927 ctsio->kern_sg_entries = 0; 9928 9929 /* 9930 * The control device is always connected. The disk device, on the 9931 * other hand, may not be online all the time. 9932 */ 9933 if (lun != NULL) 9934 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9935 lun->be_lun->lun_type; 9936 else 9937 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9938 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9939 eid_ptr->page_length = data_len - 4; 9940 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9941 eid_ptr->flags3 = SVPD_EID_V_SUP; 9942 9943 ctsio->scsi_status = SCSI_STATUS_OK; 9944 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9945 ctsio->be_move_done = ctl_config_move_done; 9946 ctl_datamove((union ctl_io *)ctsio); 9947 9948 return (CTL_RETVAL_COMPLETE); 9949} 9950 9951static int 9952ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9953{ 9954 struct scsi_vpd_mode_page_policy *mpp_ptr; 9955 struct ctl_lun *lun; 9956 int data_len; 9957 9958 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9959 9960 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9961 sizeof(struct scsi_vpd_mode_page_policy_descr); 9962 9963 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9964 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9965 ctsio->kern_sg_entries = 0; 9966 9967 if (data_len < alloc_len) { 9968 ctsio->residual = alloc_len - data_len; 9969 ctsio->kern_data_len = data_len; 9970 ctsio->kern_total_len = data_len; 9971 } else { 9972 ctsio->residual = 0; 9973 ctsio->kern_data_len = alloc_len; 9974 ctsio->kern_total_len = alloc_len; 9975 } 9976 ctsio->kern_data_resid = 0; 9977 ctsio->kern_rel_offset = 0; 9978 ctsio->kern_sg_entries = 0; 9979 9980 /* 9981 * The control device is always connected. The disk device, on the 9982 * other hand, may not be online all the time. 9983 */ 9984 if (lun != NULL) 9985 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9986 lun->be_lun->lun_type; 9987 else 9988 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9989 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9990 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9991 mpp_ptr->descr[0].page_code = 0x3f; 9992 mpp_ptr->descr[0].subpage_code = 0xff; 9993 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9994 9995 ctsio->scsi_status = SCSI_STATUS_OK; 9996 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9997 ctsio->be_move_done = ctl_config_move_done; 9998 ctl_datamove((union ctl_io *)ctsio); 9999 10000 return (CTL_RETVAL_COMPLETE); 10001} 10002 10003static int 10004ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10005{ 10006 struct scsi_vpd_device_id *devid_ptr; 10007 struct scsi_vpd_id_descriptor *desc; 10008 struct ctl_softc *ctl_softc; 10009 struct ctl_lun *lun; 10010 struct ctl_port *port; 10011 int data_len; 10012 uint8_t proto; 10013 10014 ctl_softc = control_softc; 10015 10016 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10017 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10018 10019 data_len = sizeof(struct scsi_vpd_device_id) + 10020 sizeof(struct scsi_vpd_id_descriptor) + 10021 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10022 sizeof(struct scsi_vpd_id_descriptor) + 10023 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10024 if (lun && lun->lun_devid) 10025 data_len += lun->lun_devid->len; 10026 if (port->port_devid) 10027 data_len += port->port_devid->len; 10028 if (port->target_devid) 10029 data_len += port->target_devid->len; 10030 10031 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10032 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10033 ctsio->kern_sg_entries = 0; 10034 10035 if (data_len < alloc_len) { 10036 ctsio->residual = alloc_len - data_len; 10037 ctsio->kern_data_len = data_len; 10038 ctsio->kern_total_len = data_len; 10039 } else { 10040 ctsio->residual = 0; 10041 ctsio->kern_data_len = alloc_len; 10042 ctsio->kern_total_len = alloc_len; 10043 } 10044 ctsio->kern_data_resid = 0; 10045 ctsio->kern_rel_offset = 0; 10046 ctsio->kern_sg_entries = 0; 10047 10048 /* 10049 * The control device is always connected. The disk device, on the 10050 * other hand, may not be online all the time. 10051 */ 10052 if (lun != NULL) 10053 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10054 lun->be_lun->lun_type; 10055 else 10056 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10057 devid_ptr->page_code = SVPD_DEVICE_ID; 10058 scsi_ulto2b(data_len - 4, devid_ptr->length); 10059 10060 if (port->port_type == CTL_PORT_FC) 10061 proto = SCSI_PROTO_FC << 4; 10062 else if (port->port_type == CTL_PORT_ISCSI) 10063 proto = SCSI_PROTO_ISCSI << 4; 10064 else 10065 proto = SCSI_PROTO_SPI << 4; 10066 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10067 10068 /* 10069 * We're using a LUN association here. i.e., this device ID is a 10070 * per-LUN identifier. 10071 */ 10072 if (lun && lun->lun_devid) { 10073 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10074 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10075 lun->lun_devid->len); 10076 } 10077 10078 /* 10079 * This is for the WWPN which is a port association. 10080 */ 10081 if (port->port_devid) { 10082 memcpy(desc, port->port_devid->data, port->port_devid->len); 10083 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10084 port->port_devid->len); 10085 } 10086 10087 /* 10088 * This is for the Relative Target Port(type 4h) identifier 10089 */ 10090 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10091 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10092 SVPD_ID_TYPE_RELTARG; 10093 desc->length = 4; 10094 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10095 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10096 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10097 10098 /* 10099 * This is for the Target Port Group(type 5h) identifier 10100 */ 10101 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10102 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10103 SVPD_ID_TYPE_TPORTGRP; 10104 desc->length = 4; 10105 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10106 &desc->identifier[2]); 10107 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10108 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10109 10110 /* 10111 * This is for the Target identifier 10112 */ 10113 if (port->target_devid) { 10114 memcpy(desc, port->target_devid->data, port->target_devid->len); 10115 } 10116 10117 ctsio->scsi_status = SCSI_STATUS_OK; 10118 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10119 ctsio->be_move_done = ctl_config_move_done; 10120 ctl_datamove((union ctl_io *)ctsio); 10121 10122 return (CTL_RETVAL_COMPLETE); 10123} 10124 10125static int 10126ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10127{ 10128 struct ctl_softc *softc = control_softc; 10129 struct scsi_vpd_scsi_ports *sp; 10130 struct scsi_vpd_port_designation *pd; 10131 struct scsi_vpd_port_designation_cont *pdc; 10132 struct ctl_lun *lun; 10133 struct ctl_port *port; 10134 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10135 int num_target_port_groups, single; 10136 10137 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10138 10139 single = ctl_is_single; 10140 if (single) 10141 num_target_port_groups = 1; 10142 else 10143 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10144 num_target_ports = 0; 10145 iid_len = 0; 10146 id_len = 0; 10147 mtx_lock(&softc->ctl_lock); 10148 STAILQ_FOREACH(port, &softc->port_list, links) { 10149 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10150 continue; 10151 if (lun != NULL && 10152 ctl_map_lun_back(port->targ_port, lun->lun) >= 10153 CTL_MAX_LUNS) 10154 continue; 10155 num_target_ports++; 10156 if (port->init_devid) 10157 iid_len += port->init_devid->len; 10158 if (port->port_devid) 10159 id_len += port->port_devid->len; 10160 } 10161 mtx_unlock(&softc->ctl_lock); 10162 10163 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10164 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10165 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10166 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10167 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10168 ctsio->kern_sg_entries = 0; 10169 10170 if (data_len < alloc_len) { 10171 ctsio->residual = alloc_len - data_len; 10172 ctsio->kern_data_len = data_len; 10173 ctsio->kern_total_len = data_len; 10174 } else { 10175 ctsio->residual = 0; 10176 ctsio->kern_data_len = alloc_len; 10177 ctsio->kern_total_len = alloc_len; 10178 } 10179 ctsio->kern_data_resid = 0; 10180 ctsio->kern_rel_offset = 0; 10181 ctsio->kern_sg_entries = 0; 10182 10183 /* 10184 * The control device is always connected. The disk device, on the 10185 * other hand, may not be online all the time. Need to change this 10186 * to figure out whether the disk device is actually online or not. 10187 */ 10188 if (lun != NULL) 10189 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10190 lun->be_lun->lun_type; 10191 else 10192 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10193 10194 sp->page_code = SVPD_SCSI_PORTS; 10195 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10196 sp->page_length); 10197 pd = &sp->design[0]; 10198 10199 mtx_lock(&softc->ctl_lock); 10200 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10201 pg = 0; 10202 else 10203 pg = 1; 10204 for (g = 0; g < num_target_port_groups; g++) { 10205 STAILQ_FOREACH(port, &softc->port_list, links) { 10206 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10207 continue; 10208 if (lun != NULL && 10209 ctl_map_lun_back(port->targ_port, lun->lun) >= 10210 CTL_MAX_LUNS) 10211 continue; 10212 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10213 scsi_ulto2b(p, pd->relative_port_id); 10214 if (port->init_devid && g == pg) { 10215 iid_len = port->init_devid->len; 10216 memcpy(pd->initiator_transportid, 10217 port->init_devid->data, port->init_devid->len); 10218 } else 10219 iid_len = 0; 10220 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10221 pdc = (struct scsi_vpd_port_designation_cont *) 10222 (&pd->initiator_transportid[iid_len]); 10223 if (port->port_devid && g == pg) { 10224 id_len = port->port_devid->len; 10225 memcpy(pdc->target_port_descriptors, 10226 port->port_devid->data, port->port_devid->len); 10227 } else 10228 id_len = 0; 10229 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10230 pd = (struct scsi_vpd_port_designation *) 10231 ((uint8_t *)pdc->target_port_descriptors + id_len); 10232 } 10233 } 10234 mtx_unlock(&softc->ctl_lock); 10235 10236 ctsio->scsi_status = SCSI_STATUS_OK; 10237 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10238 ctsio->be_move_done = ctl_config_move_done; 10239 ctl_datamove((union ctl_io *)ctsio); 10240 10241 return (CTL_RETVAL_COMPLETE); 10242} 10243 10244static int 10245ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10246{ 10247 struct scsi_vpd_block_limits *bl_ptr; 10248 struct ctl_lun *lun; 10249 int bs; 10250 10251 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10252 10253 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10254 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10255 ctsio->kern_sg_entries = 0; 10256 10257 if (sizeof(*bl_ptr) < alloc_len) { 10258 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10259 ctsio->kern_data_len = sizeof(*bl_ptr); 10260 ctsio->kern_total_len = sizeof(*bl_ptr); 10261 } else { 10262 ctsio->residual = 0; 10263 ctsio->kern_data_len = alloc_len; 10264 ctsio->kern_total_len = alloc_len; 10265 } 10266 ctsio->kern_data_resid = 0; 10267 ctsio->kern_rel_offset = 0; 10268 ctsio->kern_sg_entries = 0; 10269 10270 /* 10271 * The control device is always connected. The disk device, on the 10272 * other hand, may not be online all the time. Need to change this 10273 * to figure out whether the disk device is actually online or not. 10274 */ 10275 if (lun != NULL) 10276 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10277 lun->be_lun->lun_type; 10278 else 10279 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10280 10281 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10282 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10283 bl_ptr->max_cmp_write_len = 0xff; 10284 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10285 if (lun != NULL) { 10286 bs = lun->be_lun->blocksize; 10287 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10288 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10289 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10290 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10291 if (lun->be_lun->pblockexp != 0) { 10292 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10293 bl_ptr->opt_unmap_grain); 10294 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10295 bl_ptr->unmap_grain_align); 10296 } 10297 } 10298 } 10299 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10300 10301 ctsio->scsi_status = SCSI_STATUS_OK; 10302 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10303 ctsio->be_move_done = ctl_config_move_done; 10304 ctl_datamove((union ctl_io *)ctsio); 10305 10306 return (CTL_RETVAL_COMPLETE); 10307} 10308 10309static int 10310ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10311{ 10312 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10313 struct ctl_lun *lun; 10314 10315 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10316 10317 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10318 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10319 ctsio->kern_sg_entries = 0; 10320 10321 if (sizeof(*bdc_ptr) < alloc_len) { 10322 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10323 ctsio->kern_data_len = sizeof(*bdc_ptr); 10324 ctsio->kern_total_len = sizeof(*bdc_ptr); 10325 } else { 10326 ctsio->residual = 0; 10327 ctsio->kern_data_len = alloc_len; 10328 ctsio->kern_total_len = alloc_len; 10329 } 10330 ctsio->kern_data_resid = 0; 10331 ctsio->kern_rel_offset = 0; 10332 ctsio->kern_sg_entries = 0; 10333 10334 /* 10335 * The control device is always connected. The disk device, on the 10336 * other hand, may not be online all the time. Need to change this 10337 * to figure out whether the disk device is actually online or not. 10338 */ 10339 if (lun != NULL) 10340 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10341 lun->be_lun->lun_type; 10342 else 10343 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10344 bdc_ptr->page_code = SVPD_BDC; 10345 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10346 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10347 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10348 10349 ctsio->scsi_status = SCSI_STATUS_OK; 10350 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10351 ctsio->be_move_done = ctl_config_move_done; 10352 ctl_datamove((union ctl_io *)ctsio); 10353 10354 return (CTL_RETVAL_COMPLETE); 10355} 10356 10357static int 10358ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10359{ 10360 struct scsi_vpd_logical_block_prov *lbp_ptr; 10361 struct ctl_lun *lun; 10362 10363 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10364 10365 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10366 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10367 ctsio->kern_sg_entries = 0; 10368 10369 if (sizeof(*lbp_ptr) < alloc_len) { 10370 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10371 ctsio->kern_data_len = sizeof(*lbp_ptr); 10372 ctsio->kern_total_len = sizeof(*lbp_ptr); 10373 } else { 10374 ctsio->residual = 0; 10375 ctsio->kern_data_len = alloc_len; 10376 ctsio->kern_total_len = alloc_len; 10377 } 10378 ctsio->kern_data_resid = 0; 10379 ctsio->kern_rel_offset = 0; 10380 ctsio->kern_sg_entries = 0; 10381 10382 /* 10383 * The control device is always connected. The disk device, on the 10384 * other hand, may not be online all the time. Need to change this 10385 * to figure out whether the disk device is actually online or not. 10386 */ 10387 if (lun != NULL) 10388 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10389 lun->be_lun->lun_type; 10390 else 10391 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10392 10393 lbp_ptr->page_code = SVPD_LBP; 10394 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10395 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10396 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10397 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10398 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10399 } 10400 10401 ctsio->scsi_status = SCSI_STATUS_OK; 10402 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10403 ctsio->be_move_done = ctl_config_move_done; 10404 ctl_datamove((union ctl_io *)ctsio); 10405 10406 return (CTL_RETVAL_COMPLETE); 10407} 10408 10409static int 10410ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10411{ 10412 struct scsi_inquiry *cdb; 10413 struct ctl_lun *lun; 10414 int alloc_len, retval; 10415 10416 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10417 cdb = (struct scsi_inquiry *)ctsio->cdb; 10418 10419 retval = CTL_RETVAL_COMPLETE; 10420 10421 alloc_len = scsi_2btoul(cdb->length); 10422 10423 switch (cdb->page_code) { 10424 case SVPD_SUPPORTED_PAGES: 10425 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10426 break; 10427 case SVPD_UNIT_SERIAL_NUMBER: 10428 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10429 break; 10430 case SVPD_DEVICE_ID: 10431 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10432 break; 10433 case SVPD_EXTENDED_INQUIRY_DATA: 10434 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10435 break; 10436 case SVPD_MODE_PAGE_POLICY: 10437 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10438 break; 10439 case SVPD_SCSI_PORTS: 10440 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10441 break; 10442 case SVPD_SCSI_TPC: 10443 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10444 break; 10445 case SVPD_BLOCK_LIMITS: 10446 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10447 break; 10448 case SVPD_BDC: 10449 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10450 break; 10451 case SVPD_LBP: 10452 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10453 break; 10454 default: 10455 ctl_set_invalid_field(ctsio, 10456 /*sks_valid*/ 1, 10457 /*command*/ 1, 10458 /*field*/ 2, 10459 /*bit_valid*/ 0, 10460 /*bit*/ 0); 10461 ctl_done((union ctl_io *)ctsio); 10462 retval = CTL_RETVAL_COMPLETE; 10463 break; 10464 } 10465 10466 return (retval); 10467} 10468 10469static int 10470ctl_inquiry_std(struct ctl_scsiio *ctsio) 10471{ 10472 struct scsi_inquiry_data *inq_ptr; 10473 struct scsi_inquiry *cdb; 10474 struct ctl_softc *ctl_softc; 10475 struct ctl_lun *lun; 10476 char *val; 10477 uint32_t alloc_len; 10478 ctl_port_type port_type; 10479 10480 ctl_softc = control_softc; 10481 10482 /* 10483 * Figure out whether we're talking to a Fibre Channel port or not. 10484 * We treat the ioctl front end, and any SCSI adapters, as packetized 10485 * SCSI front ends. 10486 */ 10487 port_type = ctl_softc->ctl_ports[ 10488 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10489 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10490 port_type = CTL_PORT_SCSI; 10491 10492 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10493 cdb = (struct scsi_inquiry *)ctsio->cdb; 10494 alloc_len = scsi_2btoul(cdb->length); 10495 10496 /* 10497 * We malloc the full inquiry data size here and fill it 10498 * in. If the user only asks for less, we'll give him 10499 * that much. 10500 */ 10501 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10502 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10503 ctsio->kern_sg_entries = 0; 10504 ctsio->kern_data_resid = 0; 10505 ctsio->kern_rel_offset = 0; 10506 10507 if (sizeof(*inq_ptr) < alloc_len) { 10508 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10509 ctsio->kern_data_len = sizeof(*inq_ptr); 10510 ctsio->kern_total_len = sizeof(*inq_ptr); 10511 } else { 10512 ctsio->residual = 0; 10513 ctsio->kern_data_len = alloc_len; 10514 ctsio->kern_total_len = alloc_len; 10515 } 10516 10517 /* 10518 * If we have a LUN configured, report it as connected. Otherwise, 10519 * report that it is offline or no device is supported, depending 10520 * on the value of inquiry_pq_no_lun. 10521 * 10522 * According to the spec (SPC-4 r34), the peripheral qualifier 10523 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10524 * 10525 * "A peripheral device having the specified peripheral device type 10526 * is not connected to this logical unit. However, the device 10527 * server is capable of supporting the specified peripheral device 10528 * type on this logical unit." 10529 * 10530 * According to the same spec, the peripheral qualifier 10531 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10532 * 10533 * "The device server is not capable of supporting a peripheral 10534 * device on this logical unit. For this peripheral qualifier the 10535 * peripheral device type shall be set to 1Fh. All other peripheral 10536 * device type values are reserved for this peripheral qualifier." 10537 * 10538 * Given the text, it would seem that we probably want to report that 10539 * the LUN is offline here. There is no LUN connected, but we can 10540 * support a LUN at the given LUN number. 10541 * 10542 * In the real world, though, it sounds like things are a little 10543 * different: 10544 * 10545 * - Linux, when presented with a LUN with the offline peripheral 10546 * qualifier, will create an sg driver instance for it. So when 10547 * you attach it to CTL, you wind up with a ton of sg driver 10548 * instances. (One for every LUN that Linux bothered to probe.) 10549 * Linux does this despite the fact that it issues a REPORT LUNs 10550 * to LUN 0 to get the inventory of supported LUNs. 10551 * 10552 * - There is other anecdotal evidence (from Emulex folks) about 10553 * arrays that use the offline peripheral qualifier for LUNs that 10554 * are on the "passive" path in an active/passive array. 10555 * 10556 * So the solution is provide a hopefully reasonable default 10557 * (return bad/no LUN) and allow the user to change the behavior 10558 * with a tunable/sysctl variable. 10559 */ 10560 if (lun != NULL) 10561 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10562 lun->be_lun->lun_type; 10563 else if (ctl_softc->inquiry_pq_no_lun == 0) 10564 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10565 else 10566 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10567 10568 /* RMB in byte 2 is 0 */ 10569 inq_ptr->version = SCSI_REV_SPC4; 10570 10571 /* 10572 * According to SAM-3, even if a device only supports a single 10573 * level of LUN addressing, it should still set the HISUP bit: 10574 * 10575 * 4.9.1 Logical unit numbers overview 10576 * 10577 * All logical unit number formats described in this standard are 10578 * hierarchical in structure even when only a single level in that 10579 * hierarchy is used. The HISUP bit shall be set to one in the 10580 * standard INQUIRY data (see SPC-2) when any logical unit number 10581 * format described in this standard is used. Non-hierarchical 10582 * formats are outside the scope of this standard. 10583 * 10584 * Therefore we set the HiSup bit here. 10585 * 10586 * The reponse format is 2, per SPC-3. 10587 */ 10588 inq_ptr->response_format = SID_HiSup | 2; 10589 10590 inq_ptr->additional_length = 10591 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10592 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10593 CTL_DEBUG_PRINT(("additional_length = %d\n", 10594 inq_ptr->additional_length)); 10595 10596 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10597 /* 16 bit addressing */ 10598 if (port_type == CTL_PORT_SCSI) 10599 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10600 /* XXX set the SID_MultiP bit here if we're actually going to 10601 respond on multiple ports */ 10602 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10603 10604 /* 16 bit data bus, synchronous transfers */ 10605 if (port_type == CTL_PORT_SCSI) 10606 inq_ptr->flags = SID_WBus16 | SID_Sync; 10607 /* 10608 * XXX KDM do we want to support tagged queueing on the control 10609 * device at all? 10610 */ 10611 if ((lun == NULL) 10612 || (lun->be_lun->lun_type != T_PROCESSOR)) 10613 inq_ptr->flags |= SID_CmdQue; 10614 /* 10615 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10616 * We have 8 bytes for the vendor name, and 16 bytes for the device 10617 * name and 4 bytes for the revision. 10618 */ 10619 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10620 "vendor")) == NULL) { 10621 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10622 } else { 10623 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10624 strncpy(inq_ptr->vendor, val, 10625 min(sizeof(inq_ptr->vendor), strlen(val))); 10626 } 10627 if (lun == NULL) { 10628 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10629 sizeof(inq_ptr->product)); 10630 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10631 switch (lun->be_lun->lun_type) { 10632 case T_DIRECT: 10633 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10634 sizeof(inq_ptr->product)); 10635 break; 10636 case T_PROCESSOR: 10637 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10638 sizeof(inq_ptr->product)); 10639 break; 10640 default: 10641 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10642 sizeof(inq_ptr->product)); 10643 break; 10644 } 10645 } else { 10646 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10647 strncpy(inq_ptr->product, val, 10648 min(sizeof(inq_ptr->product), strlen(val))); 10649 } 10650 10651 /* 10652 * XXX make this a macro somewhere so it automatically gets 10653 * incremented when we make changes. 10654 */ 10655 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10656 "revision")) == NULL) { 10657 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10658 } else { 10659 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10660 strncpy(inq_ptr->revision, val, 10661 min(sizeof(inq_ptr->revision), strlen(val))); 10662 } 10663 10664 /* 10665 * For parallel SCSI, we support double transition and single 10666 * transition clocking. We also support QAS (Quick Arbitration 10667 * and Selection) and Information Unit transfers on both the 10668 * control and array devices. 10669 */ 10670 if (port_type == CTL_PORT_SCSI) 10671 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10672 SID_SPI_IUS; 10673 10674 /* SAM-5 (no version claimed) */ 10675 scsi_ulto2b(0x00A0, inq_ptr->version1); 10676 /* SPC-4 (no version claimed) */ 10677 scsi_ulto2b(0x0460, inq_ptr->version2); 10678 if (port_type == CTL_PORT_FC) { 10679 /* FCP-2 ANSI INCITS.350:2003 */ 10680 scsi_ulto2b(0x0917, inq_ptr->version3); 10681 } else if (port_type == CTL_PORT_SCSI) { 10682 /* SPI-4 ANSI INCITS.362:200x */ 10683 scsi_ulto2b(0x0B56, inq_ptr->version3); 10684 } else if (port_type == CTL_PORT_ISCSI) { 10685 /* iSCSI (no version claimed) */ 10686 scsi_ulto2b(0x0960, inq_ptr->version3); 10687 } else if (port_type == CTL_PORT_SAS) { 10688 /* SAS (no version claimed) */ 10689 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10690 } 10691 10692 if (lun == NULL) { 10693 /* SBC-3 (no version claimed) */ 10694 scsi_ulto2b(0x04C0, inq_ptr->version4); 10695 } else { 10696 switch (lun->be_lun->lun_type) { 10697 case T_DIRECT: 10698 /* SBC-3 (no version claimed) */ 10699 scsi_ulto2b(0x04C0, inq_ptr->version4); 10700 break; 10701 case T_PROCESSOR: 10702 default: 10703 break; 10704 } 10705 } 10706 10707 ctsio->scsi_status = SCSI_STATUS_OK; 10708 if (ctsio->kern_data_len > 0) { 10709 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10710 ctsio->be_move_done = ctl_config_move_done; 10711 ctl_datamove((union ctl_io *)ctsio); 10712 } else { 10713 ctsio->io_hdr.status = CTL_SUCCESS; 10714 ctl_done((union ctl_io *)ctsio); 10715 } 10716 10717 return (CTL_RETVAL_COMPLETE); 10718} 10719 10720int 10721ctl_inquiry(struct ctl_scsiio *ctsio) 10722{ 10723 struct scsi_inquiry *cdb; 10724 int retval; 10725 10726 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10727 10728 cdb = (struct scsi_inquiry *)ctsio->cdb; 10729 if (cdb->byte2 & SI_EVPD) 10730 retval = ctl_inquiry_evpd(ctsio); 10731 else if (cdb->page_code == 0) 10732 retval = ctl_inquiry_std(ctsio); 10733 else { 10734 ctl_set_invalid_field(ctsio, 10735 /*sks_valid*/ 1, 10736 /*command*/ 1, 10737 /*field*/ 2, 10738 /*bit_valid*/ 0, 10739 /*bit*/ 0); 10740 ctl_done((union ctl_io *)ctsio); 10741 return (CTL_RETVAL_COMPLETE); 10742 } 10743 10744 return (retval); 10745} 10746 10747/* 10748 * For known CDB types, parse the LBA and length. 10749 */ 10750static int 10751ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10752{ 10753 if (io->io_hdr.io_type != CTL_IO_SCSI) 10754 return (1); 10755 10756 switch (io->scsiio.cdb[0]) { 10757 case COMPARE_AND_WRITE: { 10758 struct scsi_compare_and_write *cdb; 10759 10760 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10761 10762 *lba = scsi_8btou64(cdb->addr); 10763 *len = cdb->length; 10764 break; 10765 } 10766 case READ_6: 10767 case WRITE_6: { 10768 struct scsi_rw_6 *cdb; 10769 10770 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10771 10772 *lba = scsi_3btoul(cdb->addr); 10773 /* only 5 bits are valid in the most significant address byte */ 10774 *lba &= 0x1fffff; 10775 *len = cdb->length; 10776 break; 10777 } 10778 case READ_10: 10779 case WRITE_10: { 10780 struct scsi_rw_10 *cdb; 10781 10782 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10783 10784 *lba = scsi_4btoul(cdb->addr); 10785 *len = scsi_2btoul(cdb->length); 10786 break; 10787 } 10788 case WRITE_VERIFY_10: { 10789 struct scsi_write_verify_10 *cdb; 10790 10791 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10792 10793 *lba = scsi_4btoul(cdb->addr); 10794 *len = scsi_2btoul(cdb->length); 10795 break; 10796 } 10797 case READ_12: 10798 case WRITE_12: { 10799 struct scsi_rw_12 *cdb; 10800 10801 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10802 10803 *lba = scsi_4btoul(cdb->addr); 10804 *len = scsi_4btoul(cdb->length); 10805 break; 10806 } 10807 case WRITE_VERIFY_12: { 10808 struct scsi_write_verify_12 *cdb; 10809 10810 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10811 10812 *lba = scsi_4btoul(cdb->addr); 10813 *len = scsi_4btoul(cdb->length); 10814 break; 10815 } 10816 case READ_16: 10817 case WRITE_16: { 10818 struct scsi_rw_16 *cdb; 10819 10820 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10821 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = scsi_4btoul(cdb->length); 10824 break; 10825 } 10826 case WRITE_VERIFY_16: { 10827 struct scsi_write_verify_16 *cdb; 10828 10829 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10830 10831 10832 *lba = scsi_8btou64(cdb->addr); 10833 *len = scsi_4btoul(cdb->length); 10834 break; 10835 } 10836 case WRITE_SAME_10: { 10837 struct scsi_write_same_10 *cdb; 10838 10839 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10840 10841 *lba = scsi_4btoul(cdb->addr); 10842 *len = scsi_2btoul(cdb->length); 10843 break; 10844 } 10845 case WRITE_SAME_16: { 10846 struct scsi_write_same_16 *cdb; 10847 10848 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10849 10850 *lba = scsi_8btou64(cdb->addr); 10851 *len = scsi_4btoul(cdb->length); 10852 break; 10853 } 10854 case VERIFY_10: { 10855 struct scsi_verify_10 *cdb; 10856 10857 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10858 10859 *lba = scsi_4btoul(cdb->addr); 10860 *len = scsi_2btoul(cdb->length); 10861 break; 10862 } 10863 case VERIFY_12: { 10864 struct scsi_verify_12 *cdb; 10865 10866 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10867 10868 *lba = scsi_4btoul(cdb->addr); 10869 *len = scsi_4btoul(cdb->length); 10870 break; 10871 } 10872 case VERIFY_16: { 10873 struct scsi_verify_16 *cdb; 10874 10875 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10876 10877 *lba = scsi_8btou64(cdb->addr); 10878 *len = scsi_4btoul(cdb->length); 10879 break; 10880 } 10881 case UNMAP: { 10882 *lba = 0; 10883 *len = UINT64_MAX; 10884 break; 10885 } 10886 default: 10887 return (1); 10888 break; /* NOTREACHED */ 10889 } 10890 10891 return (0); 10892} 10893 10894static ctl_action 10895ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10896{ 10897 uint64_t endlba1, endlba2; 10898 10899 endlba1 = lba1 + len1 - 1; 10900 endlba2 = lba2 + len2 - 1; 10901 10902 if ((endlba1 < lba2) 10903 || (endlba2 < lba1)) 10904 return (CTL_ACTION_PASS); 10905 else 10906 return (CTL_ACTION_BLOCK); 10907} 10908 10909static int 10910ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10911{ 10912 struct ctl_ptr_len_flags *ptrlen; 10913 struct scsi_unmap_desc *buf, *end, *range; 10914 uint64_t lba; 10915 uint32_t len; 10916 10917 /* If not UNMAP -- go other way. */ 10918 if (io->io_hdr.io_type != CTL_IO_SCSI || 10919 io->scsiio.cdb[0] != UNMAP) 10920 return (CTL_ACTION_ERROR); 10921 10922 /* If UNMAP without data -- block and wait for data. */ 10923 ptrlen = (struct ctl_ptr_len_flags *) 10924 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10925 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10926 ptrlen->ptr == NULL) 10927 return (CTL_ACTION_BLOCK); 10928 10929 /* UNMAP with data -- check for collision. */ 10930 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10931 end = buf + ptrlen->len / sizeof(*buf); 10932 for (range = buf; range < end; range++) { 10933 lba = scsi_8btou64(range->lba); 10934 len = scsi_4btoul(range->length); 10935 if ((lba < lba2 + len2) && (lba + len > lba2)) 10936 return (CTL_ACTION_BLOCK); 10937 } 10938 return (CTL_ACTION_PASS); 10939} 10940 10941static ctl_action 10942ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10943{ 10944 uint64_t lba1, lba2; 10945 uint64_t len1, len2; 10946 int retval; 10947 10948 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10949 return (CTL_ACTION_ERROR); 10950 10951 retval = ctl_extent_check_unmap(io2, lba1, len1); 10952 if (retval != CTL_ACTION_ERROR) 10953 return (retval); 10954 10955 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10956 return (CTL_ACTION_ERROR); 10957 10958 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10959} 10960 10961static ctl_action 10962ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10963 union ctl_io *ooa_io) 10964{ 10965 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10966 ctl_serialize_action *serialize_row; 10967 10968 /* 10969 * The initiator attempted multiple untagged commands at the same 10970 * time. Can't do that. 10971 */ 10972 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10973 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10974 && ((pending_io->io_hdr.nexus.targ_port == 10975 ooa_io->io_hdr.nexus.targ_port) 10976 && (pending_io->io_hdr.nexus.initid.id == 10977 ooa_io->io_hdr.nexus.initid.id)) 10978 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10979 return (CTL_ACTION_OVERLAP); 10980 10981 /* 10982 * The initiator attempted to send multiple tagged commands with 10983 * the same ID. (It's fine if different initiators have the same 10984 * tag ID.) 10985 * 10986 * Even if all of those conditions are true, we don't kill the I/O 10987 * if the command ahead of us has been aborted. We won't end up 10988 * sending it to the FETD, and it's perfectly legal to resend a 10989 * command with the same tag number as long as the previous 10990 * instance of this tag number has been aborted somehow. 10991 */ 10992 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10993 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10994 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10995 && ((pending_io->io_hdr.nexus.targ_port == 10996 ooa_io->io_hdr.nexus.targ_port) 10997 && (pending_io->io_hdr.nexus.initid.id == 10998 ooa_io->io_hdr.nexus.initid.id)) 10999 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11000 return (CTL_ACTION_OVERLAP_TAG); 11001 11002 /* 11003 * If we get a head of queue tag, SAM-3 says that we should 11004 * immediately execute it. 11005 * 11006 * What happens if this command would normally block for some other 11007 * reason? e.g. a request sense with a head of queue tag 11008 * immediately after a write. Normally that would block, but this 11009 * will result in its getting executed immediately... 11010 * 11011 * We currently return "pass" instead of "skip", so we'll end up 11012 * going through the rest of the queue to check for overlapped tags. 11013 * 11014 * XXX KDM check for other types of blockage first?? 11015 */ 11016 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11017 return (CTL_ACTION_PASS); 11018 11019 /* 11020 * Ordered tags have to block until all items ahead of them 11021 * have completed. If we get called with an ordered tag, we always 11022 * block, if something else is ahead of us in the queue. 11023 */ 11024 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11025 return (CTL_ACTION_BLOCK); 11026 11027 /* 11028 * Simple tags get blocked until all head of queue and ordered tags 11029 * ahead of them have completed. I'm lumping untagged commands in 11030 * with simple tags here. XXX KDM is that the right thing to do? 11031 */ 11032 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11033 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11034 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11035 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11036 return (CTL_ACTION_BLOCK); 11037 11038 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 11039 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 11040 11041 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11042 11043 switch (serialize_row[pending_entry->seridx]) { 11044 case CTL_SER_BLOCK: 11045 return (CTL_ACTION_BLOCK); 11046 case CTL_SER_EXTENT: 11047 return (ctl_extent_check(pending_io, ooa_io)); 11048 case CTL_SER_EXTENTOPT: 11049 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11050 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11051 return (ctl_extent_check(pending_io, ooa_io)); 11052 /* FALLTHROUGH */ 11053 case CTL_SER_PASS: 11054 return (CTL_ACTION_PASS); 11055 case CTL_SER_BLOCKOPT: 11056 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11057 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11058 return (CTL_ACTION_BLOCK); 11059 return (CTL_ACTION_PASS); 11060 case CTL_SER_SKIP: 11061 return (CTL_ACTION_SKIP); 11062 default: 11063 panic("invalid serialization value %d", 11064 serialize_row[pending_entry->seridx]); 11065 } 11066 11067 return (CTL_ACTION_ERROR); 11068} 11069 11070/* 11071 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11072 * Assumptions: 11073 * - pending_io is generally either incoming, or on the blocked queue 11074 * - starting I/O is the I/O we want to start the check with. 11075 */ 11076static ctl_action 11077ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11078 union ctl_io *starting_io) 11079{ 11080 union ctl_io *ooa_io; 11081 ctl_action action; 11082 11083 mtx_assert(&lun->lun_lock, MA_OWNED); 11084 11085 /* 11086 * Run back along the OOA queue, starting with the current 11087 * blocked I/O and going through every I/O before it on the 11088 * queue. If starting_io is NULL, we'll just end up returning 11089 * CTL_ACTION_PASS. 11090 */ 11091 for (ooa_io = starting_io; ooa_io != NULL; 11092 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11093 ooa_links)){ 11094 11095 /* 11096 * This routine just checks to see whether 11097 * cur_blocked is blocked by ooa_io, which is ahead 11098 * of it in the queue. It doesn't queue/dequeue 11099 * cur_blocked. 11100 */ 11101 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11102 switch (action) { 11103 case CTL_ACTION_BLOCK: 11104 case CTL_ACTION_OVERLAP: 11105 case CTL_ACTION_OVERLAP_TAG: 11106 case CTL_ACTION_SKIP: 11107 case CTL_ACTION_ERROR: 11108 return (action); 11109 break; /* NOTREACHED */ 11110 case CTL_ACTION_PASS: 11111 break; 11112 default: 11113 panic("invalid action %d", action); 11114 break; /* NOTREACHED */ 11115 } 11116 } 11117 11118 return (CTL_ACTION_PASS); 11119} 11120 11121/* 11122 * Assumptions: 11123 * - An I/O has just completed, and has been removed from the per-LUN OOA 11124 * queue, so some items on the blocked queue may now be unblocked. 11125 */ 11126static int 11127ctl_check_blocked(struct ctl_lun *lun) 11128{ 11129 union ctl_io *cur_blocked, *next_blocked; 11130 11131 mtx_assert(&lun->lun_lock, MA_OWNED); 11132 11133 /* 11134 * Run forward from the head of the blocked queue, checking each 11135 * entry against the I/Os prior to it on the OOA queue to see if 11136 * there is still any blockage. 11137 * 11138 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11139 * with our removing a variable on it while it is traversing the 11140 * list. 11141 */ 11142 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11143 cur_blocked != NULL; cur_blocked = next_blocked) { 11144 union ctl_io *prev_ooa; 11145 ctl_action action; 11146 11147 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11148 blocked_links); 11149 11150 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11151 ctl_ooaq, ooa_links); 11152 11153 /* 11154 * If cur_blocked happens to be the first item in the OOA 11155 * queue now, prev_ooa will be NULL, and the action 11156 * returned will just be CTL_ACTION_PASS. 11157 */ 11158 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11159 11160 switch (action) { 11161 case CTL_ACTION_BLOCK: 11162 /* Nothing to do here, still blocked */ 11163 break; 11164 case CTL_ACTION_OVERLAP: 11165 case CTL_ACTION_OVERLAP_TAG: 11166 /* 11167 * This shouldn't happen! In theory we've already 11168 * checked this command for overlap... 11169 */ 11170 break; 11171 case CTL_ACTION_PASS: 11172 case CTL_ACTION_SKIP: { 11173 struct ctl_softc *softc; 11174 const struct ctl_cmd_entry *entry; 11175 uint32_t initidx; 11176 int isc_retval; 11177 11178 /* 11179 * The skip case shouldn't happen, this transaction 11180 * should have never made it onto the blocked queue. 11181 */ 11182 /* 11183 * This I/O is no longer blocked, we can remove it 11184 * from the blocked queue. Since this is a TAILQ 11185 * (doubly linked list), we can do O(1) removals 11186 * from any place on the list. 11187 */ 11188 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11189 blocked_links); 11190 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11191 11192 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11193 /* 11194 * Need to send IO back to original side to 11195 * run 11196 */ 11197 union ctl_ha_msg msg_info; 11198 11199 msg_info.hdr.original_sc = 11200 cur_blocked->io_hdr.original_sc; 11201 msg_info.hdr.serializing_sc = cur_blocked; 11202 msg_info.hdr.msg_type = CTL_MSG_R2R; 11203 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11204 &msg_info, sizeof(msg_info), 0)) > 11205 CTL_HA_STATUS_SUCCESS) { 11206 printf("CTL:Check Blocked error from " 11207 "ctl_ha_msg_send %d\n", 11208 isc_retval); 11209 } 11210 break; 11211 } 11212 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11213 softc = control_softc; 11214 11215 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11216 11217 /* 11218 * Check this I/O for LUN state changes that may 11219 * have happened while this command was blocked. 11220 * The LUN state may have been changed by a command 11221 * ahead of us in the queue, so we need to re-check 11222 * for any states that can be caused by SCSI 11223 * commands. 11224 */ 11225 if (ctl_scsiio_lun_check(softc, lun, entry, 11226 &cur_blocked->scsiio) == 0) { 11227 cur_blocked->io_hdr.flags |= 11228 CTL_FLAG_IS_WAS_ON_RTR; 11229 ctl_enqueue_rtr(cur_blocked); 11230 } else 11231 ctl_done(cur_blocked); 11232 break; 11233 } 11234 default: 11235 /* 11236 * This probably shouldn't happen -- we shouldn't 11237 * get CTL_ACTION_ERROR, or anything else. 11238 */ 11239 break; 11240 } 11241 } 11242 11243 return (CTL_RETVAL_COMPLETE); 11244} 11245 11246/* 11247 * This routine (with one exception) checks LUN flags that can be set by 11248 * commands ahead of us in the OOA queue. These flags have to be checked 11249 * when a command initially comes in, and when we pull a command off the 11250 * blocked queue and are preparing to execute it. The reason we have to 11251 * check these flags for commands on the blocked queue is that the LUN 11252 * state may have been changed by a command ahead of us while we're on the 11253 * blocked queue. 11254 * 11255 * Ordering is somewhat important with these checks, so please pay 11256 * careful attention to the placement of any new checks. 11257 */ 11258static int 11259ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11260 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11261{ 11262 int retval; 11263 11264 retval = 0; 11265 11266 mtx_assert(&lun->lun_lock, MA_OWNED); 11267 11268 /* 11269 * If this shelf is a secondary shelf controller, we have to reject 11270 * any media access commands. 11271 */ 11272#if 0 11273 /* No longer needed for HA */ 11274 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11275 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11276 ctl_set_lun_standby(ctsio); 11277 retval = 1; 11278 goto bailout; 11279 } 11280#endif 11281 11282 /* 11283 * Check for a reservation conflict. If this command isn't allowed 11284 * even on reserved LUNs, and if this initiator isn't the one who 11285 * reserved us, reject the command with a reservation conflict. 11286 */ 11287 if ((lun->flags & CTL_LUN_RESERVED) 11288 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11289 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11290 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11291 || (ctsio->io_hdr.nexus.targ_target.id != 11292 lun->rsv_nexus.targ_target.id)) { 11293 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11294 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11295 retval = 1; 11296 goto bailout; 11297 } 11298 } 11299 11300 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11301 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11302 uint32_t residx; 11303 11304 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 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 ua_type = lun->pending_ua[initidx]; 11742 if (ua_type != CTL_UA_NONE) { 11743 scsi_sense_data_type sense_format; 11744 11745 if (lun != NULL) 11746 sense_format = (lun->flags & 11747 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11748 SSD_TYPE_FIXED; 11749 else 11750 sense_format = SSD_TYPE_FIXED; 11751 11752 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11753 sense_format); 11754 if (ua_type != CTL_UA_NONE) { 11755 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11756 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11757 CTL_AUTOSENSE; 11758 ctsio->sense_len = SSD_FULL_SIZE; 11759 lun->pending_ua[initidx] &= ~ua_type; 11760 mtx_unlock(&lun->lun_lock); 11761 ctl_done((union ctl_io *)ctsio); 11762 return (retval); 11763 } 11764 } 11765 } 11766 11767 11768 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11769 mtx_unlock(&lun->lun_lock); 11770 ctl_done((union ctl_io *)ctsio); 11771 return (retval); 11772 } 11773 11774 /* 11775 * XXX CHD this is where we want to send IO to other side if 11776 * this LUN is secondary on this SC. We will need to make a copy 11777 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11778 * the copy we send as FROM_OTHER. 11779 * We also need to stuff the address of the original IO so we can 11780 * find it easily. Something similar will need be done on the other 11781 * side so when we are done we can find the copy. 11782 */ 11783 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11784 union ctl_ha_msg msg_info; 11785 int isc_retval; 11786 11787 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11788 11789 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11790 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11791#if 0 11792 printf("1. ctsio %p\n", ctsio); 11793#endif 11794 msg_info.hdr.serializing_sc = NULL; 11795 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11796 msg_info.scsi.tag_num = ctsio->tag_num; 11797 msg_info.scsi.tag_type = ctsio->tag_type; 11798 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11799 11800 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11801 11802 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11803 (void *)&msg_info, sizeof(msg_info), 0)) > 11804 CTL_HA_STATUS_SUCCESS) { 11805 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11806 isc_retval); 11807 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11808 } else { 11809#if 0 11810 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11811#endif 11812 } 11813 11814 /* 11815 * XXX KDM this I/O is off the incoming queue, but hasn't 11816 * been inserted on any other queue. We may need to come 11817 * up with a holding queue while we wait for serialization 11818 * so that we have an idea of what we're waiting for from 11819 * the other side. 11820 */ 11821 mtx_unlock(&lun->lun_lock); 11822 return (retval); 11823 } 11824 11825 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11826 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11827 ctl_ooaq, ooa_links))) { 11828 case CTL_ACTION_BLOCK: 11829 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11830 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11831 blocked_links); 11832 mtx_unlock(&lun->lun_lock); 11833 return (retval); 11834 case CTL_ACTION_PASS: 11835 case CTL_ACTION_SKIP: 11836 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11837 mtx_unlock(&lun->lun_lock); 11838 ctl_enqueue_rtr((union ctl_io *)ctsio); 11839 break; 11840 case CTL_ACTION_OVERLAP: 11841 mtx_unlock(&lun->lun_lock); 11842 ctl_set_overlapped_cmd(ctsio); 11843 ctl_done((union ctl_io *)ctsio); 11844 break; 11845 case CTL_ACTION_OVERLAP_TAG: 11846 mtx_unlock(&lun->lun_lock); 11847 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11848 ctl_done((union ctl_io *)ctsio); 11849 break; 11850 case CTL_ACTION_ERROR: 11851 default: 11852 mtx_unlock(&lun->lun_lock); 11853 ctl_set_internal_failure(ctsio, 11854 /*sks_valid*/ 0, 11855 /*retry_count*/ 0); 11856 ctl_done((union ctl_io *)ctsio); 11857 break; 11858 } 11859 return (retval); 11860} 11861 11862const struct ctl_cmd_entry * 11863ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11864{ 11865 const struct ctl_cmd_entry *entry; 11866 int service_action; 11867 11868 entry = &ctl_cmd_table[ctsio->cdb[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; 11882 uint8_t diff; 11883 11884 entry = ctl_get_cmd_entry(ctsio); 11885 if (entry->execute == NULL) { 11886 ctl_set_invalid_opcode(ctsio); 11887 ctl_done((union ctl_io *)ctsio); 11888 return (NULL); 11889 } 11890 KASSERT(entry->length > 0, 11891 ("Not defined length for command 0x%02x/0x%02x", 11892 ctsio->cdb[0], ctsio->cdb[1])); 11893 for (i = 1; i < entry->length; i++) { 11894 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11895 if (diff == 0) 11896 continue; 11897 ctl_set_invalid_field(ctsio, 11898 /*sks_valid*/ 1, 11899 /*command*/ 1, 11900 /*field*/ i, 11901 /*bit_valid*/ 1, 11902 /*bit*/ fls(diff) - 1); 11903 ctl_done((union ctl_io *)ctsio); 11904 return (NULL); 11905 } 11906 return (entry); 11907} 11908 11909static int 11910ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11911{ 11912 11913 switch (lun_type) { 11914 case T_PROCESSOR: 11915 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11916 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11917 return (0); 11918 break; 11919 case T_DIRECT: 11920 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11921 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11922 return (0); 11923 break; 11924 default: 11925 return (0); 11926 } 11927 return (1); 11928} 11929 11930static int 11931ctl_scsiio(struct ctl_scsiio *ctsio) 11932{ 11933 int retval; 11934 const struct ctl_cmd_entry *entry; 11935 11936 retval = CTL_RETVAL_COMPLETE; 11937 11938 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11939 11940 entry = ctl_get_cmd_entry(ctsio); 11941 11942 /* 11943 * If this I/O has been aborted, just send it straight to 11944 * ctl_done() without executing it. 11945 */ 11946 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11947 ctl_done((union ctl_io *)ctsio); 11948 goto bailout; 11949 } 11950 11951 /* 11952 * All the checks should have been handled by ctl_scsiio_precheck(). 11953 * We should be clear now to just execute the I/O. 11954 */ 11955 retval = entry->execute(ctsio); 11956 11957bailout: 11958 return (retval); 11959} 11960 11961/* 11962 * Since we only implement one target right now, a bus reset simply resets 11963 * our single target. 11964 */ 11965static int 11966ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11967{ 11968 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11969} 11970 11971static int 11972ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11973 ctl_ua_type ua_type) 11974{ 11975 struct ctl_lun *lun; 11976 int retval; 11977 11978 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11979 union ctl_ha_msg msg_info; 11980 11981 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11982 msg_info.hdr.nexus = io->io_hdr.nexus; 11983 if (ua_type==CTL_UA_TARG_RESET) 11984 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11985 else 11986 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11987 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11988 msg_info.hdr.original_sc = NULL; 11989 msg_info.hdr.serializing_sc = NULL; 11990 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11991 (void *)&msg_info, sizeof(msg_info), 0)) { 11992 } 11993 } 11994 retval = 0; 11995 11996 mtx_lock(&ctl_softc->ctl_lock); 11997 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11998 retval += ctl_lun_reset(lun, io, ua_type); 11999 mtx_unlock(&ctl_softc->ctl_lock); 12000 12001 return (retval); 12002} 12003 12004/* 12005 * The LUN should always be set. The I/O is optional, and is used to 12006 * distinguish between I/Os sent by this initiator, and by other 12007 * initiators. We set unit attention for initiators other than this one. 12008 * SAM-3 is vague on this point. It does say that a unit attention should 12009 * be established for other initiators when a LUN is reset (see section 12010 * 5.7.3), but it doesn't specifically say that the unit attention should 12011 * be established for this particular initiator when a LUN is reset. Here 12012 * is the relevant text, from SAM-3 rev 8: 12013 * 12014 * 5.7.2 When a SCSI initiator port aborts its own tasks 12015 * 12016 * When a SCSI initiator port causes its own task(s) to be aborted, no 12017 * notification that the task(s) have been aborted shall be returned to 12018 * the SCSI initiator port other than the completion response for the 12019 * command or task management function action that caused the task(s) to 12020 * be aborted and notification(s) associated with related effects of the 12021 * action (e.g., a reset unit attention condition). 12022 * 12023 * XXX KDM for now, we're setting unit attention for all initiators. 12024 */ 12025static int 12026ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12027{ 12028 union ctl_io *xio; 12029#if 0 12030 uint32_t initindex; 12031#endif 12032 int i; 12033 12034 mtx_lock(&lun->lun_lock); 12035 /* 12036 * Run through the OOA queue and abort each I/O. 12037 */ 12038#if 0 12039 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12040#endif 12041 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12042 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12043 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12044 } 12045 12046 /* 12047 * This version sets unit attention for every 12048 */ 12049#if 0 12050 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12051 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12052 if (initindex == i) 12053 continue; 12054 lun->pending_ua[i] |= ua_type; 12055 } 12056#endif 12057 12058 /* 12059 * A reset (any kind, really) clears reservations established with 12060 * RESERVE/RELEASE. It does not clear reservations established 12061 * with PERSISTENT RESERVE OUT, but we don't support that at the 12062 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12063 * reservations made with the RESERVE/RELEASE commands, because 12064 * those commands are obsolete in SPC-3. 12065 */ 12066 lun->flags &= ~CTL_LUN_RESERVED; 12067 12068 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12069#ifdef CTL_WITH_CA 12070 ctl_clear_mask(lun->have_ca, i); 12071#endif 12072 lun->pending_ua[i] |= ua_type; 12073 } 12074 mtx_unlock(&lun->lun_lock); 12075 12076 return (0); 12077} 12078 12079static void 12080ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12081 int other_sc) 12082{ 12083 union ctl_io *xio; 12084 12085 mtx_assert(&lun->lun_lock, MA_OWNED); 12086 12087 /* 12088 * Run through the OOA queue and attempt to find the given I/O. 12089 * The target port, initiator ID, tag type and tag number have to 12090 * match the values that we got from the initiator. If we have an 12091 * untagged command to abort, simply abort the first untagged command 12092 * we come to. We only allow one untagged command at a time of course. 12093 */ 12094 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12095 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12096 12097 if ((targ_port == UINT32_MAX || 12098 targ_port == xio->io_hdr.nexus.targ_port) && 12099 (init_id == UINT32_MAX || 12100 init_id == xio->io_hdr.nexus.initid.id)) { 12101 if (targ_port != xio->io_hdr.nexus.targ_port || 12102 init_id != xio->io_hdr.nexus.initid.id) 12103 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12104 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12105 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12106 union ctl_ha_msg msg_info; 12107 12108 msg_info.hdr.nexus = xio->io_hdr.nexus; 12109 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12110 msg_info.task.tag_num = xio->scsiio.tag_num; 12111 msg_info.task.tag_type = xio->scsiio.tag_type; 12112 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12113 msg_info.hdr.original_sc = NULL; 12114 msg_info.hdr.serializing_sc = NULL; 12115 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12116 (void *)&msg_info, sizeof(msg_info), 0); 12117 } 12118 } 12119 } 12120} 12121 12122static int 12123ctl_abort_task_set(union ctl_io *io) 12124{ 12125 struct ctl_softc *softc = control_softc; 12126 struct ctl_lun *lun; 12127 uint32_t targ_lun; 12128 12129 /* 12130 * Look up the LUN. 12131 */ 12132 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12133 mtx_lock(&softc->ctl_lock); 12134 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12135 lun = softc->ctl_luns[targ_lun]; 12136 else { 12137 mtx_unlock(&softc->ctl_lock); 12138 return (1); 12139 } 12140 12141 mtx_lock(&lun->lun_lock); 12142 mtx_unlock(&softc->ctl_lock); 12143 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12144 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12145 io->io_hdr.nexus.initid.id, 12146 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12147 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12148 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12149 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12150 } 12151 mtx_unlock(&lun->lun_lock); 12152 return (0); 12153} 12154 12155static int 12156ctl_i_t_nexus_reset(union ctl_io *io) 12157{ 12158 struct ctl_softc *softc = control_softc; 12159 struct ctl_lun *lun; 12160 uint32_t initindex; 12161 12162 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12163 mtx_lock(&softc->ctl_lock); 12164 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12165 mtx_lock(&lun->lun_lock); 12166 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12167 io->io_hdr.nexus.initid.id, 12168 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12169#ifdef CTL_WITH_CA 12170 ctl_clear_mask(lun->have_ca, initindex); 12171#endif 12172 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12173 mtx_unlock(&lun->lun_lock); 12174 } 12175 mtx_unlock(&softc->ctl_lock); 12176 return (0); 12177} 12178 12179static int 12180ctl_abort_task(union ctl_io *io) 12181{ 12182 union ctl_io *xio; 12183 struct ctl_lun *lun; 12184 struct ctl_softc *ctl_softc; 12185#if 0 12186 struct sbuf sb; 12187 char printbuf[128]; 12188#endif 12189 int found; 12190 uint32_t targ_lun; 12191 12192 ctl_softc = control_softc; 12193 found = 0; 12194 12195 /* 12196 * Look up the LUN. 12197 */ 12198 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12199 mtx_lock(&ctl_softc->ctl_lock); 12200 if ((targ_lun < CTL_MAX_LUNS) 12201 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12202 lun = ctl_softc->ctl_luns[targ_lun]; 12203 else { 12204 mtx_unlock(&ctl_softc->ctl_lock); 12205 return (1); 12206 } 12207 12208#if 0 12209 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12210 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12211#endif 12212 12213 mtx_lock(&lun->lun_lock); 12214 mtx_unlock(&ctl_softc->ctl_lock); 12215 /* 12216 * Run through the OOA queue and attempt to find the given I/O. 12217 * The target port, initiator ID, tag type and tag number have to 12218 * match the values that we got from the initiator. If we have an 12219 * untagged command to abort, simply abort the first untagged command 12220 * we come to. We only allow one untagged command at a time of course. 12221 */ 12222#if 0 12223 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12224#endif 12225 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12226 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12227#if 0 12228 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12229 12230 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12231 lun->lun, xio->scsiio.tag_num, 12232 xio->scsiio.tag_type, 12233 (xio->io_hdr.blocked_links.tqe_prev 12234 == NULL) ? "" : " BLOCKED", 12235 (xio->io_hdr.flags & 12236 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12237 (xio->io_hdr.flags & 12238 CTL_FLAG_ABORT) ? " ABORT" : "", 12239 (xio->io_hdr.flags & 12240 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12241 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12242 sbuf_finish(&sb); 12243 printf("%s\n", sbuf_data(&sb)); 12244#endif 12245 12246 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12247 && (xio->io_hdr.nexus.initid.id == 12248 io->io_hdr.nexus.initid.id)) { 12249 /* 12250 * If the abort says that the task is untagged, the 12251 * task in the queue must be untagged. Otherwise, 12252 * we just check to see whether the tag numbers 12253 * match. This is because the QLogic firmware 12254 * doesn't pass back the tag type in an abort 12255 * request. 12256 */ 12257#if 0 12258 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12259 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12260 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12261#endif 12262 /* 12263 * XXX KDM we've got problems with FC, because it 12264 * doesn't send down a tag type with aborts. So we 12265 * can only really go by the tag number... 12266 * This may cause problems with parallel SCSI. 12267 * Need to figure that out!! 12268 */ 12269 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12270 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12271 found = 1; 12272 if ((io->io_hdr.flags & 12273 CTL_FLAG_FROM_OTHER_SC) == 0 && 12274 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12275 union ctl_ha_msg msg_info; 12276 12277 io->io_hdr.flags |= 12278 CTL_FLAG_SENT_2OTHER_SC; 12279 msg_info.hdr.nexus = io->io_hdr.nexus; 12280 msg_info.task.task_action = 12281 CTL_TASK_ABORT_TASK; 12282 msg_info.task.tag_num = 12283 io->taskio.tag_num; 12284 msg_info.task.tag_type = 12285 io->taskio.tag_type; 12286 msg_info.hdr.msg_type = 12287 CTL_MSG_MANAGE_TASKS; 12288 msg_info.hdr.original_sc = NULL; 12289 msg_info.hdr.serializing_sc = NULL; 12290#if 0 12291 printf("Sent Abort to other side\n"); 12292#endif 12293 if (CTL_HA_STATUS_SUCCESS != 12294 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12295 (void *)&msg_info, 12296 sizeof(msg_info), 0)) { 12297 } 12298 } 12299#if 0 12300 printf("ctl_abort_task: found I/O to abort\n"); 12301#endif 12302 break; 12303 } 12304 } 12305 } 12306 mtx_unlock(&lun->lun_lock); 12307 12308 if (found == 0) { 12309 /* 12310 * This isn't really an error. It's entirely possible for 12311 * the abort and command completion to cross on the wire. 12312 * This is more of an informative/diagnostic error. 12313 */ 12314#if 0 12315 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12316 "%d:%d:%d:%d tag %d type %d\n", 12317 io->io_hdr.nexus.initid.id, 12318 io->io_hdr.nexus.targ_port, 12319 io->io_hdr.nexus.targ_target.id, 12320 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12321 io->taskio.tag_type); 12322#endif 12323 } 12324 return (0); 12325} 12326 12327static void 12328ctl_run_task(union ctl_io *io) 12329{ 12330 struct ctl_softc *ctl_softc = control_softc; 12331 int retval = 1; 12332 const char *task_desc; 12333 12334 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12335 12336 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12337 ("ctl_run_task: Unextected io_type %d\n", 12338 io->io_hdr.io_type)); 12339 12340 task_desc = ctl_scsi_task_string(&io->taskio); 12341 if (task_desc != NULL) { 12342#ifdef NEEDTOPORT 12343 csevent_log(CSC_CTL | CSC_SHELF_SW | 12344 CTL_TASK_REPORT, 12345 csevent_LogType_Trace, 12346 csevent_Severity_Information, 12347 csevent_AlertLevel_Green, 12348 csevent_FRU_Firmware, 12349 csevent_FRU_Unknown, 12350 "CTL: received task: %s",task_desc); 12351#endif 12352 } else { 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 unknown task " 12362 "type: %d (%#x)", 12363 io->taskio.task_action, 12364 io->taskio.task_action); 12365#endif 12366 } 12367 switch (io->taskio.task_action) { 12368 case CTL_TASK_ABORT_TASK: 12369 retval = ctl_abort_task(io); 12370 break; 12371 case CTL_TASK_ABORT_TASK_SET: 12372 case CTL_TASK_CLEAR_TASK_SET: 12373 retval = ctl_abort_task_set(io); 12374 break; 12375 case CTL_TASK_CLEAR_ACA: 12376 break; 12377 case CTL_TASK_I_T_NEXUS_RESET: 12378 retval = ctl_i_t_nexus_reset(io); 12379 break; 12380 case CTL_TASK_LUN_RESET: { 12381 struct ctl_lun *lun; 12382 uint32_t targ_lun; 12383 12384 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12385 mtx_lock(&ctl_softc->ctl_lock); 12386 if ((targ_lun < CTL_MAX_LUNS) 12387 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12388 lun = ctl_softc->ctl_luns[targ_lun]; 12389 else { 12390 mtx_unlock(&ctl_softc->ctl_lock); 12391 retval = 1; 12392 break; 12393 } 12394 12395 if (!(io->io_hdr.flags & 12396 CTL_FLAG_FROM_OTHER_SC)) { 12397 union ctl_ha_msg msg_info; 12398 12399 io->io_hdr.flags |= 12400 CTL_FLAG_SENT_2OTHER_SC; 12401 msg_info.hdr.msg_type = 12402 CTL_MSG_MANAGE_TASKS; 12403 msg_info.hdr.nexus = io->io_hdr.nexus; 12404 msg_info.task.task_action = 12405 CTL_TASK_LUN_RESET; 12406 msg_info.hdr.original_sc = NULL; 12407 msg_info.hdr.serializing_sc = NULL; 12408 if (CTL_HA_STATUS_SUCCESS != 12409 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12410 (void *)&msg_info, 12411 sizeof(msg_info), 0)) { 12412 } 12413 } 12414 12415 retval = ctl_lun_reset(lun, io, 12416 CTL_UA_LUN_RESET); 12417 mtx_unlock(&ctl_softc->ctl_lock); 12418 break; 12419 } 12420 case CTL_TASK_TARGET_RESET: 12421 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12422 break; 12423 case CTL_TASK_BUS_RESET: 12424 retval = ctl_bus_reset(ctl_softc, io); 12425 break; 12426 case CTL_TASK_PORT_LOGIN: 12427 break; 12428 case CTL_TASK_PORT_LOGOUT: 12429 break; 12430 default: 12431 printf("ctl_run_task: got unknown task management event %d\n", 12432 io->taskio.task_action); 12433 break; 12434 } 12435 if (retval == 0) 12436 io->io_hdr.status = CTL_SUCCESS; 12437 else 12438 io->io_hdr.status = CTL_ERROR; 12439 ctl_done(io); 12440} 12441 12442/* 12443 * For HA operation. Handle commands that come in from the other 12444 * controller. 12445 */ 12446static void 12447ctl_handle_isc(union ctl_io *io) 12448{ 12449 int free_io; 12450 struct ctl_lun *lun; 12451 struct ctl_softc *ctl_softc; 12452 uint32_t targ_lun; 12453 12454 ctl_softc = control_softc; 12455 12456 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12457 lun = ctl_softc->ctl_luns[targ_lun]; 12458 12459 switch (io->io_hdr.msg_type) { 12460 case CTL_MSG_SERIALIZE: 12461 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12462 break; 12463 case CTL_MSG_R2R: { 12464 const struct ctl_cmd_entry *entry; 12465 12466 /* 12467 * This is only used in SER_ONLY mode. 12468 */ 12469 free_io = 0; 12470 entry = ctl_get_cmd_entry(&io->scsiio); 12471 mtx_lock(&lun->lun_lock); 12472 if (ctl_scsiio_lun_check(ctl_softc, lun, 12473 entry, (struct ctl_scsiio *)io) != 0) { 12474 mtx_unlock(&lun->lun_lock); 12475 ctl_done(io); 12476 break; 12477 } 12478 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12479 mtx_unlock(&lun->lun_lock); 12480 ctl_enqueue_rtr(io); 12481 break; 12482 } 12483 case CTL_MSG_FINISH_IO: 12484 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12485 free_io = 0; 12486 ctl_done(io); 12487 } else { 12488 free_io = 1; 12489 mtx_lock(&lun->lun_lock); 12490 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12491 ooa_links); 12492 ctl_check_blocked(lun); 12493 mtx_unlock(&lun->lun_lock); 12494 } 12495 break; 12496 case CTL_MSG_PERS_ACTION: 12497 ctl_hndl_per_res_out_on_other_sc( 12498 (union ctl_ha_msg *)&io->presio.pr_msg); 12499 free_io = 1; 12500 break; 12501 case CTL_MSG_BAD_JUJU: 12502 free_io = 0; 12503 ctl_done(io); 12504 break; 12505 case CTL_MSG_DATAMOVE: 12506 /* Only used in XFER mode */ 12507 free_io = 0; 12508 ctl_datamove_remote(io); 12509 break; 12510 case CTL_MSG_DATAMOVE_DONE: 12511 /* Only used in XFER mode */ 12512 free_io = 0; 12513 io->scsiio.be_move_done(io); 12514 break; 12515 default: 12516 free_io = 1; 12517 printf("%s: Invalid message type %d\n", 12518 __func__, io->io_hdr.msg_type); 12519 break; 12520 } 12521 if (free_io) 12522 ctl_free_io(io); 12523 12524} 12525 12526 12527/* 12528 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12529 * there is no match. 12530 */ 12531static ctl_lun_error_pattern 12532ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12533{ 12534 const struct ctl_cmd_entry *entry; 12535 ctl_lun_error_pattern filtered_pattern, pattern; 12536 12537 pattern = desc->error_pattern; 12538 12539 /* 12540 * XXX KDM we need more data passed into this function to match a 12541 * custom pattern, and we actually need to implement custom pattern 12542 * matching. 12543 */ 12544 if (pattern & CTL_LUN_PAT_CMD) 12545 return (CTL_LUN_PAT_CMD); 12546 12547 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12548 return (CTL_LUN_PAT_ANY); 12549 12550 entry = ctl_get_cmd_entry(ctsio); 12551 12552 filtered_pattern = entry->pattern & pattern; 12553 12554 /* 12555 * If the user requested specific flags in the pattern (e.g. 12556 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12557 * flags. 12558 * 12559 * If the user did not specify any flags, it doesn't matter whether 12560 * or not the command supports the flags. 12561 */ 12562 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12563 (pattern & ~CTL_LUN_PAT_MASK)) 12564 return (CTL_LUN_PAT_NONE); 12565 12566 /* 12567 * If the user asked for a range check, see if the requested LBA 12568 * range overlaps with this command's LBA range. 12569 */ 12570 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12571 uint64_t lba1; 12572 uint64_t len1; 12573 ctl_action action; 12574 int retval; 12575 12576 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12577 if (retval != 0) 12578 return (CTL_LUN_PAT_NONE); 12579 12580 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12581 desc->lba_range.len); 12582 /* 12583 * A "pass" means that the LBA ranges don't overlap, so 12584 * this doesn't match the user's range criteria. 12585 */ 12586 if (action == CTL_ACTION_PASS) 12587 return (CTL_LUN_PAT_NONE); 12588 } 12589 12590 return (filtered_pattern); 12591} 12592 12593static void 12594ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12595{ 12596 struct ctl_error_desc *desc, *desc2; 12597 12598 mtx_assert(&lun->lun_lock, MA_OWNED); 12599 12600 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12601 ctl_lun_error_pattern pattern; 12602 /* 12603 * Check to see whether this particular command matches 12604 * the pattern in the descriptor. 12605 */ 12606 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12607 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12608 continue; 12609 12610 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12611 case CTL_LUN_INJ_ABORTED: 12612 ctl_set_aborted(&io->scsiio); 12613 break; 12614 case CTL_LUN_INJ_MEDIUM_ERR: 12615 ctl_set_medium_error(&io->scsiio); 12616 break; 12617 case CTL_LUN_INJ_UA: 12618 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12619 * OCCURRED */ 12620 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12621 break; 12622 case CTL_LUN_INJ_CUSTOM: 12623 /* 12624 * We're assuming the user knows what he is doing. 12625 * Just copy the sense information without doing 12626 * checks. 12627 */ 12628 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12629 ctl_min(sizeof(desc->custom_sense), 12630 sizeof(io->scsiio.sense_data))); 12631 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12632 io->scsiio.sense_len = SSD_FULL_SIZE; 12633 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12634 break; 12635 case CTL_LUN_INJ_NONE: 12636 default: 12637 /* 12638 * If this is an error injection type we don't know 12639 * about, clear the continuous flag (if it is set) 12640 * so it will get deleted below. 12641 */ 12642 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12643 break; 12644 } 12645 /* 12646 * By default, each error injection action is a one-shot 12647 */ 12648 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12649 continue; 12650 12651 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12652 12653 free(desc, M_CTL); 12654 } 12655} 12656 12657#ifdef CTL_IO_DELAY 12658static void 12659ctl_datamove_timer_wakeup(void *arg) 12660{ 12661 union ctl_io *io; 12662 12663 io = (union ctl_io *)arg; 12664 12665 ctl_datamove(io); 12666} 12667#endif /* CTL_IO_DELAY */ 12668 12669void 12670ctl_datamove(union ctl_io *io) 12671{ 12672 void (*fe_datamove)(union ctl_io *io); 12673 12674 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12675 12676 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12677 12678#ifdef CTL_TIME_IO 12679 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12680 char str[256]; 12681 char path_str[64]; 12682 struct sbuf sb; 12683 12684 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12685 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12686 12687 sbuf_cat(&sb, path_str); 12688 switch (io->io_hdr.io_type) { 12689 case CTL_IO_SCSI: 12690 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12691 sbuf_printf(&sb, "\n"); 12692 sbuf_cat(&sb, path_str); 12693 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12694 io->scsiio.tag_num, io->scsiio.tag_type); 12695 break; 12696 case CTL_IO_TASK: 12697 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12698 "Tag Type: %d\n", io->taskio.task_action, 12699 io->taskio.tag_num, io->taskio.tag_type); 12700 break; 12701 default: 12702 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12703 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12704 break; 12705 } 12706 sbuf_cat(&sb, path_str); 12707 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12708 (intmax_t)time_uptime - io->io_hdr.start_time); 12709 sbuf_finish(&sb); 12710 printf("%s", sbuf_data(&sb)); 12711 } 12712#endif /* CTL_TIME_IO */ 12713 12714#ifdef CTL_IO_DELAY 12715 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12716 struct ctl_lun *lun; 12717 12718 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12719 12720 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12721 } else { 12722 struct ctl_lun *lun; 12723 12724 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12725 if ((lun != NULL) 12726 && (lun->delay_info.datamove_delay > 0)) { 12727 struct callout *callout; 12728 12729 callout = (struct callout *)&io->io_hdr.timer_bytes; 12730 callout_init(callout, /*mpsafe*/ 1); 12731 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12732 callout_reset(callout, 12733 lun->delay_info.datamove_delay * hz, 12734 ctl_datamove_timer_wakeup, io); 12735 if (lun->delay_info.datamove_type == 12736 CTL_DELAY_TYPE_ONESHOT) 12737 lun->delay_info.datamove_delay = 0; 12738 return; 12739 } 12740 } 12741#endif 12742 12743 /* 12744 * This command has been aborted. Set the port status, so we fail 12745 * the data move. 12746 */ 12747 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12748 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12749 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12750 io->io_hdr.nexus.targ_port, 12751 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12752 io->io_hdr.nexus.targ_lun); 12753 io->io_hdr.port_status = 31337; 12754 /* 12755 * Note that the backend, in this case, will get the 12756 * callback in its context. In other cases it may get 12757 * called in the frontend's interrupt thread context. 12758 */ 12759 io->scsiio.be_move_done(io); 12760 return; 12761 } 12762 12763 /* 12764 * If we're in XFER mode and this I/O is from the other shelf 12765 * controller, we need to send the DMA to the other side to 12766 * actually transfer the data to/from the host. In serialize only 12767 * mode the transfer happens below CTL and ctl_datamove() is only 12768 * called on the machine that originally received the I/O. 12769 */ 12770 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12771 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12772 union ctl_ha_msg msg; 12773 uint32_t sg_entries_sent; 12774 int do_sg_copy; 12775 int i; 12776 12777 memset(&msg, 0, sizeof(msg)); 12778 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12779 msg.hdr.original_sc = io->io_hdr.original_sc; 12780 msg.hdr.serializing_sc = io; 12781 msg.hdr.nexus = io->io_hdr.nexus; 12782 msg.dt.flags = io->io_hdr.flags; 12783 /* 12784 * We convert everything into a S/G list here. We can't 12785 * pass by reference, only by value between controllers. 12786 * So we can't pass a pointer to the S/G list, only as many 12787 * S/G entries as we can fit in here. If it's possible for 12788 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12789 * then we need to break this up into multiple transfers. 12790 */ 12791 if (io->scsiio.kern_sg_entries == 0) { 12792 msg.dt.kern_sg_entries = 1; 12793 /* 12794 * If this is in cached memory, flush the cache 12795 * before we send the DMA request to the other 12796 * controller. We want to do this in either the 12797 * read or the write case. The read case is 12798 * straightforward. In the write case, we want to 12799 * make sure nothing is in the local cache that 12800 * could overwrite the DMAed data. 12801 */ 12802 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12803 /* 12804 * XXX KDM use bus_dmamap_sync() here. 12805 */ 12806 } 12807 12808 /* 12809 * Convert to a physical address if this is a 12810 * virtual address. 12811 */ 12812 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12813 msg.dt.sg_list[0].addr = 12814 io->scsiio.kern_data_ptr; 12815 } else { 12816 /* 12817 * XXX KDM use busdma here! 12818 */ 12819#if 0 12820 msg.dt.sg_list[0].addr = (void *) 12821 vtophys(io->scsiio.kern_data_ptr); 12822#endif 12823 } 12824 12825 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12826 do_sg_copy = 0; 12827 } else { 12828 struct ctl_sg_entry *sgl; 12829 12830 do_sg_copy = 1; 12831 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12832 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12833 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12834 /* 12835 * XXX KDM use bus_dmamap_sync() here. 12836 */ 12837 } 12838 } 12839 12840 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12841 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12842 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12843 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12844 msg.dt.sg_sequence = 0; 12845 12846 /* 12847 * Loop until we've sent all of the S/G entries. On the 12848 * other end, we'll recompose these S/G entries into one 12849 * contiguous list before passing it to the 12850 */ 12851 for (sg_entries_sent = 0; sg_entries_sent < 12852 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12853 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12854 sizeof(msg.dt.sg_list[0])), 12855 msg.dt.kern_sg_entries - sg_entries_sent); 12856 12857 if (do_sg_copy != 0) { 12858 struct ctl_sg_entry *sgl; 12859 int j; 12860 12861 sgl = (struct ctl_sg_entry *) 12862 io->scsiio.kern_data_ptr; 12863 /* 12864 * If this is in cached memory, flush the cache 12865 * before we send the DMA request to the other 12866 * controller. We want to do this in either 12867 * the * read or the write case. The read 12868 * case is straightforward. In the write 12869 * case, we want to make sure nothing is 12870 * in the local cache that could overwrite 12871 * the DMAed data. 12872 */ 12873 12874 for (i = sg_entries_sent, j = 0; 12875 i < msg.dt.cur_sg_entries; i++, j++) { 12876 if ((io->io_hdr.flags & 12877 CTL_FLAG_NO_DATASYNC) == 0) { 12878 /* 12879 * XXX KDM use bus_dmamap_sync() 12880 */ 12881 } 12882 if ((io->io_hdr.flags & 12883 CTL_FLAG_BUS_ADDR) == 0) { 12884 /* 12885 * XXX KDM use busdma. 12886 */ 12887#if 0 12888 msg.dt.sg_list[j].addr =(void *) 12889 vtophys(sgl[i].addr); 12890#endif 12891 } else { 12892 msg.dt.sg_list[j].addr = 12893 sgl[i].addr; 12894 } 12895 msg.dt.sg_list[j].len = sgl[i].len; 12896 } 12897 } 12898 12899 sg_entries_sent += msg.dt.cur_sg_entries; 12900 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12901 msg.dt.sg_last = 1; 12902 else 12903 msg.dt.sg_last = 0; 12904 12905 /* 12906 * XXX KDM drop and reacquire the lock here? 12907 */ 12908 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12909 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12910 /* 12911 * XXX do something here. 12912 */ 12913 } 12914 12915 msg.dt.sent_sg_entries = sg_entries_sent; 12916 } 12917 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12918 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12919 ctl_failover_io(io, /*have_lock*/ 0); 12920 12921 } else { 12922 12923 /* 12924 * Lookup the fe_datamove() function for this particular 12925 * front end. 12926 */ 12927 fe_datamove = 12928 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12929 12930 fe_datamove(io); 12931 } 12932} 12933 12934static void 12935ctl_send_datamove_done(union ctl_io *io, int have_lock) 12936{ 12937 union ctl_ha_msg msg; 12938 int isc_status; 12939 12940 memset(&msg, 0, sizeof(msg)); 12941 12942 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12943 msg.hdr.original_sc = io; 12944 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12945 msg.hdr.nexus = io->io_hdr.nexus; 12946 msg.hdr.status = io->io_hdr.status; 12947 msg.scsi.tag_num = io->scsiio.tag_num; 12948 msg.scsi.tag_type = io->scsiio.tag_type; 12949 msg.scsi.scsi_status = io->scsiio.scsi_status; 12950 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12951 sizeof(io->scsiio.sense_data)); 12952 msg.scsi.sense_len = io->scsiio.sense_len; 12953 msg.scsi.sense_residual = io->scsiio.sense_residual; 12954 msg.scsi.fetd_status = io->io_hdr.port_status; 12955 msg.scsi.residual = io->scsiio.residual; 12956 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12957 12958 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12959 ctl_failover_io(io, /*have_lock*/ have_lock); 12960 return; 12961 } 12962 12963 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12964 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12965 /* XXX do something if this fails */ 12966 } 12967 12968} 12969 12970/* 12971 * The DMA to the remote side is done, now we need to tell the other side 12972 * we're done so it can continue with its data movement. 12973 */ 12974static void 12975ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12976{ 12977 union ctl_io *io; 12978 12979 io = rq->context; 12980 12981 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12982 printf("%s: ISC DMA write failed with error %d", __func__, 12983 rq->ret); 12984 ctl_set_internal_failure(&io->scsiio, 12985 /*sks_valid*/ 1, 12986 /*retry_count*/ rq->ret); 12987 } 12988 12989 ctl_dt_req_free(rq); 12990 12991 /* 12992 * In this case, we had to malloc the memory locally. Free it. 12993 */ 12994 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12995 int i; 12996 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12997 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12998 } 12999 /* 13000 * The data is in local and remote memory, so now we need to send 13001 * status (good or back) back to the other side. 13002 */ 13003 ctl_send_datamove_done(io, /*have_lock*/ 0); 13004} 13005 13006/* 13007 * We've moved the data from the host/controller into local memory. Now we 13008 * need to push it over to the remote controller's memory. 13009 */ 13010static int 13011ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13012{ 13013 int retval; 13014 13015 retval = 0; 13016 13017 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13018 ctl_datamove_remote_write_cb); 13019 13020 return (retval); 13021} 13022 13023static void 13024ctl_datamove_remote_write(union ctl_io *io) 13025{ 13026 int retval; 13027 void (*fe_datamove)(union ctl_io *io); 13028 13029 /* 13030 * - Get the data from the host/HBA into local memory. 13031 * - DMA memory from the local controller to the remote controller. 13032 * - Send status back to the remote controller. 13033 */ 13034 13035 retval = ctl_datamove_remote_sgl_setup(io); 13036 if (retval != 0) 13037 return; 13038 13039 /* Switch the pointer over so the FETD knows what to do */ 13040 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13041 13042 /* 13043 * Use a custom move done callback, since we need to send completion 13044 * back to the other controller, not to the backend on this side. 13045 */ 13046 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13047 13048 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13049 13050 fe_datamove(io); 13051 13052 return; 13053 13054} 13055 13056static int 13057ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13058{ 13059#if 0 13060 char str[256]; 13061 char path_str[64]; 13062 struct sbuf sb; 13063#endif 13064 13065 /* 13066 * In this case, we had to malloc the memory locally. Free it. 13067 */ 13068 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13069 int i; 13070 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13071 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13072 } 13073 13074#if 0 13075 scsi_path_string(io, path_str, sizeof(path_str)); 13076 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13077 sbuf_cat(&sb, path_str); 13078 scsi_command_string(&io->scsiio, NULL, &sb); 13079 sbuf_printf(&sb, "\n"); 13080 sbuf_cat(&sb, path_str); 13081 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13082 io->scsiio.tag_num, io->scsiio.tag_type); 13083 sbuf_cat(&sb, path_str); 13084 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13085 io->io_hdr.flags, io->io_hdr.status); 13086 sbuf_finish(&sb); 13087 printk("%s", sbuf_data(&sb)); 13088#endif 13089 13090 13091 /* 13092 * The read is done, now we need to send status (good or bad) back 13093 * to the other side. 13094 */ 13095 ctl_send_datamove_done(io, /*have_lock*/ 0); 13096 13097 return (0); 13098} 13099 13100static void 13101ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13102{ 13103 union ctl_io *io; 13104 void (*fe_datamove)(union ctl_io *io); 13105 13106 io = rq->context; 13107 13108 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13109 printf("%s: ISC DMA read failed with error %d", __func__, 13110 rq->ret); 13111 ctl_set_internal_failure(&io->scsiio, 13112 /*sks_valid*/ 1, 13113 /*retry_count*/ rq->ret); 13114 } 13115 13116 ctl_dt_req_free(rq); 13117 13118 /* Switch the pointer over so the FETD knows what to do */ 13119 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13120 13121 /* 13122 * Use a custom move done callback, since we need to send completion 13123 * back to the other controller, not to the backend on this side. 13124 */ 13125 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13126 13127 /* XXX KDM add checks like the ones in ctl_datamove? */ 13128 13129 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13130 13131 fe_datamove(io); 13132} 13133 13134static int 13135ctl_datamove_remote_sgl_setup(union ctl_io *io) 13136{ 13137 struct ctl_sg_entry *local_sglist, *remote_sglist; 13138 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13139 struct ctl_softc *softc; 13140 int retval; 13141 int i; 13142 13143 retval = 0; 13144 softc = control_softc; 13145 13146 local_sglist = io->io_hdr.local_sglist; 13147 local_dma_sglist = io->io_hdr.local_dma_sglist; 13148 remote_sglist = io->io_hdr.remote_sglist; 13149 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13150 13151 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13152 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13153 local_sglist[i].len = remote_sglist[i].len; 13154 13155 /* 13156 * XXX Detect the situation where the RS-level I/O 13157 * redirector on the other side has already read the 13158 * data off of the AOR RS on this side, and 13159 * transferred it to remote (mirror) memory on the 13160 * other side. Since we already have the data in 13161 * memory here, we just need to use it. 13162 * 13163 * XXX KDM this can probably be removed once we 13164 * get the cache device code in and take the 13165 * current AOR implementation out. 13166 */ 13167#ifdef NEEDTOPORT 13168 if ((remote_sglist[i].addr >= 13169 (void *)vtophys(softc->mirr->addr)) 13170 && (remote_sglist[i].addr < 13171 ((void *)vtophys(softc->mirr->addr) + 13172 CacheMirrorOffset))) { 13173 local_sglist[i].addr = remote_sglist[i].addr - 13174 CacheMirrorOffset; 13175 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13176 CTL_FLAG_DATA_IN) 13177 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13178 } else { 13179 local_sglist[i].addr = remote_sglist[i].addr + 13180 CacheMirrorOffset; 13181 } 13182#endif 13183#if 0 13184 printf("%s: local %p, remote %p, len %d\n", 13185 __func__, local_sglist[i].addr, 13186 remote_sglist[i].addr, local_sglist[i].len); 13187#endif 13188 } 13189 } else { 13190 uint32_t len_to_go; 13191 13192 /* 13193 * In this case, we don't have automatically allocated 13194 * memory for this I/O on this controller. This typically 13195 * happens with internal CTL I/O -- e.g. inquiry, mode 13196 * sense, etc. Anything coming from RAIDCore will have 13197 * a mirror area available. 13198 */ 13199 len_to_go = io->scsiio.kern_data_len; 13200 13201 /* 13202 * Clear the no datasync flag, we have to use malloced 13203 * buffers. 13204 */ 13205 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13206 13207 /* 13208 * The difficult thing here is that the size of the various 13209 * S/G segments may be different than the size from the 13210 * remote controller. That'll make it harder when DMAing 13211 * the data back to the other side. 13212 */ 13213 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13214 sizeof(io->io_hdr.remote_sglist[0])) && 13215 (len_to_go > 0); i++) { 13216 local_sglist[i].len = ctl_min(len_to_go, 131072); 13217 CTL_SIZE_8B(local_dma_sglist[i].len, 13218 local_sglist[i].len); 13219 local_sglist[i].addr = 13220 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13221 13222 local_dma_sglist[i].addr = local_sglist[i].addr; 13223 13224 if (local_sglist[i].addr == NULL) { 13225 int j; 13226 13227 printf("malloc failed for %zd bytes!", 13228 local_dma_sglist[i].len); 13229 for (j = 0; j < i; j++) { 13230 free(local_sglist[j].addr, M_CTL); 13231 } 13232 ctl_set_internal_failure(&io->scsiio, 13233 /*sks_valid*/ 1, 13234 /*retry_count*/ 4857); 13235 retval = 1; 13236 goto bailout_error; 13237 13238 } 13239 /* XXX KDM do we need a sync here? */ 13240 13241 len_to_go -= local_sglist[i].len; 13242 } 13243 /* 13244 * Reset the number of S/G entries accordingly. The 13245 * original number of S/G entries is available in 13246 * rem_sg_entries. 13247 */ 13248 io->scsiio.kern_sg_entries = i; 13249 13250#if 0 13251 printf("%s: kern_sg_entries = %d\n", __func__, 13252 io->scsiio.kern_sg_entries); 13253 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13254 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13255 local_sglist[i].addr, local_sglist[i].len, 13256 local_dma_sglist[i].len); 13257#endif 13258 } 13259 13260 13261 return (retval); 13262 13263bailout_error: 13264 13265 ctl_send_datamove_done(io, /*have_lock*/ 0); 13266 13267 return (retval); 13268} 13269 13270static int 13271ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13272 ctl_ha_dt_cb callback) 13273{ 13274 struct ctl_ha_dt_req *rq; 13275 struct ctl_sg_entry *remote_sglist, *local_sglist; 13276 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13277 uint32_t local_used, remote_used, total_used; 13278 int retval; 13279 int i, j; 13280 13281 retval = 0; 13282 13283 rq = ctl_dt_req_alloc(); 13284 13285 /* 13286 * If we failed to allocate the request, and if the DMA didn't fail 13287 * anyway, set busy status. This is just a resource allocation 13288 * failure. 13289 */ 13290 if ((rq == NULL) 13291 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13292 ctl_set_busy(&io->scsiio); 13293 13294 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13295 13296 if (rq != NULL) 13297 ctl_dt_req_free(rq); 13298 13299 /* 13300 * The data move failed. We need to return status back 13301 * to the other controller. No point in trying to DMA 13302 * data to the remote controller. 13303 */ 13304 13305 ctl_send_datamove_done(io, /*have_lock*/ 0); 13306 13307 retval = 1; 13308 13309 goto bailout; 13310 } 13311 13312 local_sglist = io->io_hdr.local_sglist; 13313 local_dma_sglist = io->io_hdr.local_dma_sglist; 13314 remote_sglist = io->io_hdr.remote_sglist; 13315 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13316 local_used = 0; 13317 remote_used = 0; 13318 total_used = 0; 13319 13320 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13321 rq->ret = CTL_HA_STATUS_SUCCESS; 13322 rq->context = io; 13323 callback(rq); 13324 goto bailout; 13325 } 13326 13327 /* 13328 * Pull/push the data over the wire from/to the other controller. 13329 * This takes into account the possibility that the local and 13330 * remote sglists may not be identical in terms of the size of 13331 * the elements and the number of elements. 13332 * 13333 * One fundamental assumption here is that the length allocated for 13334 * both the local and remote sglists is identical. Otherwise, we've 13335 * essentially got a coding error of some sort. 13336 */ 13337 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13338 int isc_ret; 13339 uint32_t cur_len, dma_length; 13340 uint8_t *tmp_ptr; 13341 13342 rq->id = CTL_HA_DATA_CTL; 13343 rq->command = command; 13344 rq->context = io; 13345 13346 /* 13347 * Both pointers should be aligned. But it is possible 13348 * that the allocation length is not. They should both 13349 * also have enough slack left over at the end, though, 13350 * to round up to the next 8 byte boundary. 13351 */ 13352 cur_len = ctl_min(local_sglist[i].len - local_used, 13353 remote_sglist[j].len - remote_used); 13354 13355 /* 13356 * In this case, we have a size issue and need to decrease 13357 * the size, except in the case where we actually have less 13358 * than 8 bytes left. In that case, we need to increase 13359 * the DMA length to get the last bit. 13360 */ 13361 if ((cur_len & 0x7) != 0) { 13362 if (cur_len > 0x7) { 13363 cur_len = cur_len - (cur_len & 0x7); 13364 dma_length = cur_len; 13365 } else { 13366 CTL_SIZE_8B(dma_length, cur_len); 13367 } 13368 13369 } else 13370 dma_length = cur_len; 13371 13372 /* 13373 * If we had to allocate memory for this I/O, instead of using 13374 * the non-cached mirror memory, we'll need to flush the cache 13375 * before trying to DMA to the other controller. 13376 * 13377 * We could end up doing this multiple times for the same 13378 * segment if we have a larger local segment than remote 13379 * segment. That shouldn't be an issue. 13380 */ 13381 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13382 /* 13383 * XXX KDM use bus_dmamap_sync() here. 13384 */ 13385 } 13386 13387 rq->size = dma_length; 13388 13389 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13390 tmp_ptr += local_used; 13391 13392 /* Use physical addresses when talking to ISC hardware */ 13393 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13394 /* XXX KDM use busdma */ 13395#if 0 13396 rq->local = vtophys(tmp_ptr); 13397#endif 13398 } else 13399 rq->local = tmp_ptr; 13400 13401 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13402 tmp_ptr += remote_used; 13403 rq->remote = tmp_ptr; 13404 13405 rq->callback = NULL; 13406 13407 local_used += cur_len; 13408 if (local_used >= local_sglist[i].len) { 13409 i++; 13410 local_used = 0; 13411 } 13412 13413 remote_used += cur_len; 13414 if (remote_used >= remote_sglist[j].len) { 13415 j++; 13416 remote_used = 0; 13417 } 13418 total_used += cur_len; 13419 13420 if (total_used >= io->scsiio.kern_data_len) 13421 rq->callback = callback; 13422 13423 if ((rq->size & 0x7) != 0) { 13424 printf("%s: warning: size %d is not on 8b boundary\n", 13425 __func__, rq->size); 13426 } 13427 if (((uintptr_t)rq->local & 0x7) != 0) { 13428 printf("%s: warning: local %p not on 8b boundary\n", 13429 __func__, rq->local); 13430 } 13431 if (((uintptr_t)rq->remote & 0x7) != 0) { 13432 printf("%s: warning: remote %p not on 8b boundary\n", 13433 __func__, rq->local); 13434 } 13435#if 0 13436 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13437 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13438 rq->local, rq->remote, rq->size); 13439#endif 13440 13441 isc_ret = ctl_dt_single(rq); 13442 if (isc_ret == CTL_HA_STATUS_WAIT) 13443 continue; 13444 13445 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13446 rq->ret = CTL_HA_STATUS_SUCCESS; 13447 } else { 13448 rq->ret = isc_ret; 13449 } 13450 callback(rq); 13451 goto bailout; 13452 } 13453 13454bailout: 13455 return (retval); 13456 13457} 13458 13459static void 13460ctl_datamove_remote_read(union ctl_io *io) 13461{ 13462 int retval; 13463 int i; 13464 13465 /* 13466 * This will send an error to the other controller in the case of a 13467 * failure. 13468 */ 13469 retval = ctl_datamove_remote_sgl_setup(io); 13470 if (retval != 0) 13471 return; 13472 13473 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13474 ctl_datamove_remote_read_cb); 13475 if ((retval != 0) 13476 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13477 /* 13478 * Make sure we free memory if there was an error.. The 13479 * ctl_datamove_remote_xfer() function will send the 13480 * datamove done message, or call the callback with an 13481 * error if there is a problem. 13482 */ 13483 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13484 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13485 } 13486 13487 return; 13488} 13489 13490/* 13491 * Process a datamove request from the other controller. This is used for 13492 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13493 * first. Once that is complete, the data gets DMAed into the remote 13494 * controller's memory. For reads, we DMA from the remote controller's 13495 * memory into our memory first, and then move it out to the FETD. 13496 */ 13497static void 13498ctl_datamove_remote(union ctl_io *io) 13499{ 13500 struct ctl_softc *softc; 13501 13502 softc = control_softc; 13503 13504 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13505 13506 /* 13507 * Note that we look for an aborted I/O here, but don't do some of 13508 * the other checks that ctl_datamove() normally does. 13509 * We don't need to run the datamove delay code, since that should 13510 * have been done if need be on the other controller. 13511 */ 13512 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13513 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13514 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13515 io->io_hdr.nexus.targ_port, 13516 io->io_hdr.nexus.targ_target.id, 13517 io->io_hdr.nexus.targ_lun); 13518 io->io_hdr.port_status = 31338; 13519 ctl_send_datamove_done(io, /*have_lock*/ 0); 13520 return; 13521 } 13522 13523 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13524 ctl_datamove_remote_write(io); 13525 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13526 ctl_datamove_remote_read(io); 13527 } else { 13528 union ctl_ha_msg msg; 13529 struct scsi_sense_data *sense; 13530 uint8_t sks[3]; 13531 int retry_count; 13532 13533 memset(&msg, 0, sizeof(msg)); 13534 13535 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13536 msg.hdr.status = CTL_SCSI_ERROR; 13537 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13538 13539 retry_count = 4243; 13540 13541 sense = &msg.scsi.sense_data; 13542 sks[0] = SSD_SCS_VALID; 13543 sks[1] = (retry_count >> 8) & 0xff; 13544 sks[2] = retry_count & 0xff; 13545 13546 /* "Internal target failure" */ 13547 scsi_set_sense_data(sense, 13548 /*sense_format*/ SSD_TYPE_NONE, 13549 /*current_error*/ 1, 13550 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13551 /*asc*/ 0x44, 13552 /*ascq*/ 0x00, 13553 /*type*/ SSD_ELEM_SKS, 13554 /*size*/ sizeof(sks), 13555 /*data*/ sks, 13556 SSD_ELEM_NONE); 13557 13558 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13559 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13560 ctl_failover_io(io, /*have_lock*/ 1); 13561 return; 13562 } 13563 13564 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13565 CTL_HA_STATUS_SUCCESS) { 13566 /* XXX KDM what to do if this fails? */ 13567 } 13568 return; 13569 } 13570 13571} 13572 13573static int 13574ctl_process_done(union ctl_io *io) 13575{ 13576 struct ctl_lun *lun; 13577 struct ctl_softc *ctl_softc; 13578 void (*fe_done)(union ctl_io *io); 13579 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13580 13581 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13582 13583 fe_done = 13584 control_softc->ctl_ports[targ_port]->fe_done; 13585 13586#ifdef CTL_TIME_IO 13587 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13588 char str[256]; 13589 char path_str[64]; 13590 struct sbuf sb; 13591 13592 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13593 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13594 13595 sbuf_cat(&sb, path_str); 13596 switch (io->io_hdr.io_type) { 13597 case CTL_IO_SCSI: 13598 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13599 sbuf_printf(&sb, "\n"); 13600 sbuf_cat(&sb, path_str); 13601 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13602 io->scsiio.tag_num, io->scsiio.tag_type); 13603 break; 13604 case CTL_IO_TASK: 13605 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13606 "Tag Type: %d\n", io->taskio.task_action, 13607 io->taskio.tag_num, io->taskio.tag_type); 13608 break; 13609 default: 13610 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13611 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13612 break; 13613 } 13614 sbuf_cat(&sb, path_str); 13615 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13616 (intmax_t)time_uptime - io->io_hdr.start_time); 13617 sbuf_finish(&sb); 13618 printf("%s", sbuf_data(&sb)); 13619 } 13620#endif /* CTL_TIME_IO */ 13621 13622 switch (io->io_hdr.io_type) { 13623 case CTL_IO_SCSI: 13624 break; 13625 case CTL_IO_TASK: 13626 if (bootverbose || verbose > 0) 13627 ctl_io_error_print(io, NULL); 13628 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13629 ctl_free_io(io); 13630 else 13631 fe_done(io); 13632 return (CTL_RETVAL_COMPLETE); 13633 break; 13634 default: 13635 printf("ctl_process_done: invalid io type %d\n", 13636 io->io_hdr.io_type); 13637 panic("ctl_process_done: invalid io type %d\n", 13638 io->io_hdr.io_type); 13639 break; /* NOTREACHED */ 13640 } 13641 13642 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13643 if (lun == NULL) { 13644 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13645 io->io_hdr.nexus.targ_mapped_lun)); 13646 fe_done(io); 13647 goto bailout; 13648 } 13649 ctl_softc = lun->ctl_softc; 13650 13651 mtx_lock(&lun->lun_lock); 13652 13653 /* 13654 * Check to see if we have any errors to inject here. We only 13655 * inject errors for commands that don't already have errors set. 13656 */ 13657 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13658 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13659 ctl_inject_error(lun, io); 13660 13661 /* 13662 * XXX KDM how do we treat commands that aren't completed 13663 * successfully? 13664 * 13665 * XXX KDM should we also track I/O latency? 13666 */ 13667 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13668 io->io_hdr.io_type == CTL_IO_SCSI) { 13669#ifdef CTL_TIME_IO 13670 struct bintime cur_bt; 13671#endif 13672 int type; 13673 13674 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13675 CTL_FLAG_DATA_IN) 13676 type = CTL_STATS_READ; 13677 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13678 CTL_FLAG_DATA_OUT) 13679 type = CTL_STATS_WRITE; 13680 else 13681 type = CTL_STATS_NO_IO; 13682 13683 lun->stats.ports[targ_port].bytes[type] += 13684 io->scsiio.kern_total_len; 13685 lun->stats.ports[targ_port].operations[type]++; 13686#ifdef CTL_TIME_IO 13687 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13688 &io->io_hdr.dma_bt); 13689 lun->stats.ports[targ_port].num_dmas[type] += 13690 io->io_hdr.num_dmas; 13691 getbintime(&cur_bt); 13692 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13693 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13694#endif 13695 } 13696 13697 /* 13698 * Remove this from the OOA queue. 13699 */ 13700 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13701 13702 /* 13703 * Run through the blocked queue on this LUN and see if anything 13704 * has become unblocked, now that this transaction is done. 13705 */ 13706 ctl_check_blocked(lun); 13707 13708 /* 13709 * If the LUN has been invalidated, free it if there is nothing 13710 * left on its OOA queue. 13711 */ 13712 if ((lun->flags & CTL_LUN_INVALID) 13713 && TAILQ_EMPTY(&lun->ooa_queue)) { 13714 mtx_unlock(&lun->lun_lock); 13715 mtx_lock(&ctl_softc->ctl_lock); 13716 ctl_free_lun(lun); 13717 mtx_unlock(&ctl_softc->ctl_lock); 13718 } else 13719 mtx_unlock(&lun->lun_lock); 13720 13721 /* 13722 * If this command has been aborted, make sure we set the status 13723 * properly. The FETD is responsible for freeing the I/O and doing 13724 * whatever it needs to do to clean up its state. 13725 */ 13726 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13727 ctl_set_task_aborted(&io->scsiio); 13728 13729 /* 13730 * We print out status for every task management command. For SCSI 13731 * commands, we filter out any unit attention errors; they happen 13732 * on every boot, and would clutter up the log. Note: task 13733 * management commands aren't printed here, they are printed above, 13734 * since they should never even make it down here. 13735 */ 13736 switch (io->io_hdr.io_type) { 13737 case CTL_IO_SCSI: { 13738 int error_code, sense_key, asc, ascq; 13739 13740 sense_key = 0; 13741 13742 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13743 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13744 /* 13745 * Since this is just for printing, no need to 13746 * show errors here. 13747 */ 13748 scsi_extract_sense_len(&io->scsiio.sense_data, 13749 io->scsiio.sense_len, 13750 &error_code, 13751 &sense_key, 13752 &asc, 13753 &ascq, 13754 /*show_errors*/ 0); 13755 } 13756 13757 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13758 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13759 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13760 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13761 13762 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13763 ctl_softc->skipped_prints++; 13764 } else { 13765 uint32_t skipped_prints; 13766 13767 skipped_prints = ctl_softc->skipped_prints; 13768 13769 ctl_softc->skipped_prints = 0; 13770 ctl_softc->last_print_jiffies = time_uptime; 13771 13772 if (skipped_prints > 0) { 13773#ifdef NEEDTOPORT 13774 csevent_log(CSC_CTL | CSC_SHELF_SW | 13775 CTL_ERROR_REPORT, 13776 csevent_LogType_Trace, 13777 csevent_Severity_Information, 13778 csevent_AlertLevel_Green, 13779 csevent_FRU_Firmware, 13780 csevent_FRU_Unknown, 13781 "High CTL error volume, %d prints " 13782 "skipped", skipped_prints); 13783#endif 13784 } 13785 if (bootverbose || verbose > 0) 13786 ctl_io_error_print(io, NULL); 13787 } 13788 } 13789 break; 13790 } 13791 case CTL_IO_TASK: 13792 if (bootverbose || verbose > 0) 13793 ctl_io_error_print(io, NULL); 13794 break; 13795 default: 13796 break; 13797 } 13798 13799 /* 13800 * Tell the FETD or the other shelf controller we're done with this 13801 * command. Note that only SCSI commands get to this point. Task 13802 * management commands are completed above. 13803 * 13804 * We only send status to the other controller if we're in XFER 13805 * mode. In SER_ONLY mode, the I/O is done on the controller that 13806 * received the I/O (from CTL's perspective), and so the status is 13807 * generated there. 13808 * 13809 * XXX KDM if we hold the lock here, we could cause a deadlock 13810 * if the frontend comes back in in this context to queue 13811 * something. 13812 */ 13813 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13814 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13815 union ctl_ha_msg msg; 13816 13817 memset(&msg, 0, sizeof(msg)); 13818 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13819 msg.hdr.original_sc = io->io_hdr.original_sc; 13820 msg.hdr.nexus = io->io_hdr.nexus; 13821 msg.hdr.status = io->io_hdr.status; 13822 msg.scsi.scsi_status = io->scsiio.scsi_status; 13823 msg.scsi.tag_num = io->scsiio.tag_num; 13824 msg.scsi.tag_type = io->scsiio.tag_type; 13825 msg.scsi.sense_len = io->scsiio.sense_len; 13826 msg.scsi.sense_residual = io->scsiio.sense_residual; 13827 msg.scsi.residual = io->scsiio.residual; 13828 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13829 sizeof(io->scsiio.sense_data)); 13830 /* 13831 * We copy this whether or not this is an I/O-related 13832 * command. Otherwise, we'd have to go and check to see 13833 * whether it's a read/write command, and it really isn't 13834 * worth it. 13835 */ 13836 memcpy(&msg.scsi.lbalen, 13837 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13838 sizeof(msg.scsi.lbalen)); 13839 13840 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13841 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13842 /* XXX do something here */ 13843 } 13844 13845 ctl_free_io(io); 13846 } else 13847 fe_done(io); 13848 13849bailout: 13850 13851 return (CTL_RETVAL_COMPLETE); 13852} 13853 13854#ifdef CTL_WITH_CA 13855/* 13856 * Front end should call this if it doesn't do autosense. When the request 13857 * sense comes back in from the initiator, we'll dequeue this and send it. 13858 */ 13859int 13860ctl_queue_sense(union ctl_io *io) 13861{ 13862 struct ctl_lun *lun; 13863 struct ctl_softc *ctl_softc; 13864 uint32_t initidx, targ_lun; 13865 13866 ctl_softc = control_softc; 13867 13868 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13869 13870 /* 13871 * LUN lookup will likely move to the ctl_work_thread() once we 13872 * have our new queueing infrastructure (that doesn't put things on 13873 * a per-LUN queue initially). That is so that we can handle 13874 * things like an INQUIRY to a LUN that we don't have enabled. We 13875 * can't deal with that right now. 13876 */ 13877 mtx_lock(&ctl_softc->ctl_lock); 13878 13879 /* 13880 * If we don't have a LUN for this, just toss the sense 13881 * information. 13882 */ 13883 targ_lun = io->io_hdr.nexus.targ_lun; 13884 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13885 if ((targ_lun < CTL_MAX_LUNS) 13886 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13887 lun = ctl_softc->ctl_luns[targ_lun]; 13888 else 13889 goto bailout; 13890 13891 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13892 13893 mtx_lock(&lun->lun_lock); 13894 /* 13895 * Already have CA set for this LUN...toss the sense information. 13896 */ 13897 if (ctl_is_set(lun->have_ca, initidx)) { 13898 mtx_unlock(&lun->lun_lock); 13899 goto bailout; 13900 } 13901 13902 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13903 ctl_min(sizeof(lun->pending_sense[initidx]), 13904 sizeof(io->scsiio.sense_data))); 13905 ctl_set_mask(lun->have_ca, initidx); 13906 mtx_unlock(&lun->lun_lock); 13907 13908bailout: 13909 mtx_unlock(&ctl_softc->ctl_lock); 13910 13911 ctl_free_io(io); 13912 13913 return (CTL_RETVAL_COMPLETE); 13914} 13915#endif 13916 13917/* 13918 * Primary command inlet from frontend ports. All SCSI and task I/O 13919 * requests must go through this function. 13920 */ 13921int 13922ctl_queue(union ctl_io *io) 13923{ 13924 struct ctl_softc *ctl_softc; 13925 13926 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13927 13928 ctl_softc = control_softc; 13929 13930#ifdef CTL_TIME_IO 13931 io->io_hdr.start_time = time_uptime; 13932 getbintime(&io->io_hdr.start_bt); 13933#endif /* CTL_TIME_IO */ 13934 13935 /* Map FE-specific LUN ID into global one. */ 13936 io->io_hdr.nexus.targ_mapped_lun = 13937 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13938 13939 switch (io->io_hdr.io_type) { 13940 case CTL_IO_SCSI: 13941 case CTL_IO_TASK: 13942 ctl_enqueue_incoming(io); 13943 break; 13944 default: 13945 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13946 return (EINVAL); 13947 } 13948 13949 return (CTL_RETVAL_COMPLETE); 13950} 13951 13952#ifdef CTL_IO_DELAY 13953static void 13954ctl_done_timer_wakeup(void *arg) 13955{ 13956 union ctl_io *io; 13957 13958 io = (union ctl_io *)arg; 13959 ctl_done(io); 13960} 13961#endif /* CTL_IO_DELAY */ 13962 13963void 13964ctl_done(union ctl_io *io) 13965{ 13966 struct ctl_softc *ctl_softc; 13967 13968 ctl_softc = control_softc; 13969 13970 /* 13971 * Enable this to catch duplicate completion issues. 13972 */ 13973#if 0 13974 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13975 printf("%s: type %d msg %d cdb %x iptl: " 13976 "%d:%d:%d:%d tag 0x%04x " 13977 "flag %#x status %x\n", 13978 __func__, 13979 io->io_hdr.io_type, 13980 io->io_hdr.msg_type, 13981 io->scsiio.cdb[0], 13982 io->io_hdr.nexus.initid.id, 13983 io->io_hdr.nexus.targ_port, 13984 io->io_hdr.nexus.targ_target.id, 13985 io->io_hdr.nexus.targ_lun, 13986 (io->io_hdr.io_type == 13987 CTL_IO_TASK) ? 13988 io->taskio.tag_num : 13989 io->scsiio.tag_num, 13990 io->io_hdr.flags, 13991 io->io_hdr.status); 13992 } else 13993 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13994#endif 13995 13996 /* 13997 * This is an internal copy of an I/O, and should not go through 13998 * the normal done processing logic. 13999 */ 14000 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14001 return; 14002 14003 /* 14004 * We need to send a msg to the serializing shelf to finish the IO 14005 * as well. We don't send a finish message to the other shelf if 14006 * this is a task management command. Task management commands 14007 * aren't serialized in the OOA queue, but rather just executed on 14008 * both shelf controllers for commands that originated on that 14009 * controller. 14010 */ 14011 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14012 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14013 union ctl_ha_msg msg_io; 14014 14015 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14016 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14017 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14018 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14019 } 14020 /* continue on to finish IO */ 14021 } 14022#ifdef CTL_IO_DELAY 14023 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14024 struct ctl_lun *lun; 14025 14026 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14027 14028 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14029 } else { 14030 struct ctl_lun *lun; 14031 14032 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14033 14034 if ((lun != NULL) 14035 && (lun->delay_info.done_delay > 0)) { 14036 struct callout *callout; 14037 14038 callout = (struct callout *)&io->io_hdr.timer_bytes; 14039 callout_init(callout, /*mpsafe*/ 1); 14040 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14041 callout_reset(callout, 14042 lun->delay_info.done_delay * hz, 14043 ctl_done_timer_wakeup, io); 14044 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14045 lun->delay_info.done_delay = 0; 14046 return; 14047 } 14048 } 14049#endif /* CTL_IO_DELAY */ 14050 14051 ctl_enqueue_done(io); 14052} 14053 14054int 14055ctl_isc(struct ctl_scsiio *ctsio) 14056{ 14057 struct ctl_lun *lun; 14058 int retval; 14059 14060 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14061 14062 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14063 14064 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14065 14066 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14067 14068 return (retval); 14069} 14070 14071 14072static void 14073ctl_work_thread(void *arg) 14074{ 14075 struct ctl_thread *thr = (struct ctl_thread *)arg; 14076 struct ctl_softc *softc = thr->ctl_softc; 14077 union ctl_io *io; 14078 int retval; 14079 14080 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14081 14082 for (;;) { 14083 retval = 0; 14084 14085 /* 14086 * We handle the queues in this order: 14087 * - ISC 14088 * - done queue (to free up resources, unblock other commands) 14089 * - RtR queue 14090 * - incoming queue 14091 * 14092 * If those queues are empty, we break out of the loop and 14093 * go to sleep. 14094 */ 14095 mtx_lock(&thr->queue_lock); 14096 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14097 if (io != NULL) { 14098 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14099 mtx_unlock(&thr->queue_lock); 14100 ctl_handle_isc(io); 14101 continue; 14102 } 14103 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14104 if (io != NULL) { 14105 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14106 /* clear any blocked commands, call fe_done */ 14107 mtx_unlock(&thr->queue_lock); 14108 retval = ctl_process_done(io); 14109 continue; 14110 } 14111 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14112 if (io != NULL) { 14113 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14114 mtx_unlock(&thr->queue_lock); 14115 if (io->io_hdr.io_type == CTL_IO_TASK) 14116 ctl_run_task(io); 14117 else 14118 ctl_scsiio_precheck(softc, &io->scsiio); 14119 continue; 14120 } 14121 if (!ctl_pause_rtr) { 14122 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14123 if (io != NULL) { 14124 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14125 mtx_unlock(&thr->queue_lock); 14126 retval = ctl_scsiio(&io->scsiio); 14127 if (retval != CTL_RETVAL_COMPLETE) 14128 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14129 continue; 14130 } 14131 } 14132 14133 /* Sleep until we have something to do. */ 14134 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14135 } 14136} 14137 14138static void 14139ctl_lun_thread(void *arg) 14140{ 14141 struct ctl_softc *softc = (struct ctl_softc *)arg; 14142 struct ctl_be_lun *be_lun; 14143 int retval; 14144 14145 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14146 14147 for (;;) { 14148 retval = 0; 14149 mtx_lock(&softc->ctl_lock); 14150 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14151 if (be_lun != NULL) { 14152 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14153 mtx_unlock(&softc->ctl_lock); 14154 ctl_create_lun(be_lun); 14155 continue; 14156 } 14157 14158 /* Sleep until we have something to do. */ 14159 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14160 PDROP | PRIBIO, "-", 0); 14161 } 14162} 14163 14164static void 14165ctl_enqueue_incoming(union ctl_io *io) 14166{ 14167 struct ctl_softc *softc = control_softc; 14168 struct ctl_thread *thr; 14169 u_int idx; 14170 14171 idx = (io->io_hdr.nexus.targ_port * 127 + 14172 io->io_hdr.nexus.initid.id) % worker_threads; 14173 thr = &softc->threads[idx]; 14174 mtx_lock(&thr->queue_lock); 14175 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14176 mtx_unlock(&thr->queue_lock); 14177 wakeup(thr); 14178} 14179 14180static void 14181ctl_enqueue_rtr(union ctl_io *io) 14182{ 14183 struct ctl_softc *softc = control_softc; 14184 struct ctl_thread *thr; 14185 14186 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14187 mtx_lock(&thr->queue_lock); 14188 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14189 mtx_unlock(&thr->queue_lock); 14190 wakeup(thr); 14191} 14192 14193static void 14194ctl_enqueue_done(union ctl_io *io) 14195{ 14196 struct ctl_softc *softc = control_softc; 14197 struct ctl_thread *thr; 14198 14199 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14200 mtx_lock(&thr->queue_lock); 14201 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14202 mtx_unlock(&thr->queue_lock); 14203 wakeup(thr); 14204} 14205 14206static void 14207ctl_enqueue_isc(union ctl_io *io) 14208{ 14209 struct ctl_softc *softc = control_softc; 14210 struct ctl_thread *thr; 14211 14212 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14213 mtx_lock(&thr->queue_lock); 14214 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14215 mtx_unlock(&thr->queue_lock); 14216 wakeup(thr); 14217} 14218 14219/* Initialization and failover */ 14220 14221void 14222ctl_init_isc_msg(void) 14223{ 14224 printf("CTL: Still calling this thing\n"); 14225} 14226 14227/* 14228 * Init component 14229 * Initializes component into configuration defined by bootMode 14230 * (see hasc-sv.c) 14231 * returns hasc_Status: 14232 * OK 14233 * ERROR - fatal error 14234 */ 14235static ctl_ha_comp_status 14236ctl_isc_init(struct ctl_ha_component *c) 14237{ 14238 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14239 14240 c->status = ret; 14241 return ret; 14242} 14243 14244/* Start component 14245 * Starts component in state requested. If component starts successfully, 14246 * it must set its own state to the requestrd state 14247 * When requested state is HASC_STATE_HA, the component may refine it 14248 * by adding _SLAVE or _MASTER flags. 14249 * Currently allowed state transitions are: 14250 * UNKNOWN->HA - initial startup 14251 * UNKNOWN->SINGLE - initial startup when no parter detected 14252 * HA->SINGLE - failover 14253 * returns ctl_ha_comp_status: 14254 * OK - component successfully started in requested state 14255 * FAILED - could not start the requested state, failover may 14256 * be possible 14257 * ERROR - fatal error detected, no future startup possible 14258 */ 14259static ctl_ha_comp_status 14260ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14261{ 14262 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14263 14264 printf("%s: go\n", __func__); 14265 14266 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14267 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14268 ctl_is_single = 0; 14269 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14270 != CTL_HA_STATUS_SUCCESS) { 14271 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14272 ret = CTL_HA_COMP_STATUS_ERROR; 14273 } 14274 } else if (CTL_HA_STATE_IS_HA(c->state) 14275 && CTL_HA_STATE_IS_SINGLE(state)){ 14276 // HA->SINGLE transition 14277 ctl_failover(); 14278 ctl_is_single = 1; 14279 } else { 14280 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14281 c->state, state); 14282 ret = CTL_HA_COMP_STATUS_ERROR; 14283 } 14284 if (CTL_HA_STATE_IS_SINGLE(state)) 14285 ctl_is_single = 1; 14286 14287 c->state = state; 14288 c->status = ret; 14289 return ret; 14290} 14291 14292/* 14293 * Quiesce component 14294 * The component must clear any error conditions (set status to OK) and 14295 * prepare itself to another Start call 14296 * returns ctl_ha_comp_status: 14297 * OK 14298 * ERROR 14299 */ 14300static ctl_ha_comp_status 14301ctl_isc_quiesce(struct ctl_ha_component *c) 14302{ 14303 int ret = CTL_HA_COMP_STATUS_OK; 14304 14305 ctl_pause_rtr = 1; 14306 c->status = ret; 14307 return ret; 14308} 14309 14310struct ctl_ha_component ctl_ha_component_ctlisc = 14311{ 14312 .name = "CTL ISC", 14313 .state = CTL_HA_STATE_UNKNOWN, 14314 .init = ctl_isc_init, 14315 .start = ctl_isc_start, 14316 .quiesce = ctl_isc_quiesce 14317}; 14318 14319/* 14320 * vim: ts=8 14321 */ 14322