ctl.c revision 271951
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 271951 2014-09-22 10:05:36Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ SCP_WCE | SCP_RCD, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277}; 278 279static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/SCP_QUEUE_ALG_MASK, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 316 &worker_threads, 1, "Number of worker threads"); 317static int verbose = 0; 318SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 319 &verbose, 0, "Show SCSI errors returned to initiator"); 320 321/* 322 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 323 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 324 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 325 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 326 */ 327#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 328 329static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 330 int param); 331static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 332static int ctl_init(void); 333void ctl_shutdown(void); 334static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 335static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 336static void ctl_ioctl_online(void *arg); 337static void ctl_ioctl_offline(void *arg); 338static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 339static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 340static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 341static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 342static int ctl_ioctl_submit_wait(union ctl_io *io); 343static void ctl_ioctl_datamove(union ctl_io *io); 344static void ctl_ioctl_done(union ctl_io *io); 345static void ctl_ioctl_hard_startstop_callback(void *arg, 346 struct cfi_metatask *metatask); 347static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 348static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 349 struct ctl_ooa *ooa_hdr, 350 struct ctl_ooa_entry *kern_entries); 351static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 352 struct thread *td); 353static uint32_t ctl_map_lun(int port_num, uint32_t lun); 354static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 355#ifdef unused 356static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 357 uint32_t targ_target, uint32_t targ_lun, 358 int can_wait); 359static void ctl_kfree_io(union ctl_io *io); 360#endif /* unused */ 361static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 362 struct ctl_be_lun *be_lun, struct ctl_id target_id); 363static int ctl_free_lun(struct ctl_lun *lun); 364static void ctl_create_lun(struct ctl_be_lun *be_lun); 365/** 366static void ctl_failover_change_pages(struct ctl_softc *softc, 367 struct ctl_scsiio *ctsio, int master); 368**/ 369 370static int ctl_do_mode_select(union ctl_io *io); 371static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 372 uint64_t res_key, uint64_t sa_res_key, 373 uint8_t type, uint32_t residx, 374 struct ctl_scsiio *ctsio, 375 struct scsi_per_res_out *cdb, 376 struct scsi_per_res_out_parms* param); 377static void ctl_pro_preempt_other(struct ctl_lun *lun, 378 union ctl_ha_msg *msg); 379static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 380static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 381static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 386 int alloc_len); 387static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 390static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 391static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 392static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 393static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 394static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 395static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 396 union ctl_io *pending_io, union ctl_io *ooa_io); 397static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 398 union ctl_io *starting_io); 399static int ctl_check_blocked(struct ctl_lun *lun); 400static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 401 struct ctl_lun *lun, 402 const struct ctl_cmd_entry *entry, 403 struct ctl_scsiio *ctsio); 404//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 405static void ctl_failover(void); 406static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 407 struct ctl_scsiio *ctsio); 408static int ctl_scsiio(struct ctl_scsiio *ctsio); 409 410static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 411static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 412 ctl_ua_type ua_type); 413static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_abort_task(union ctl_io *io); 416static int ctl_abort_task_set(union ctl_io *io); 417static int ctl_i_t_nexus_reset(union ctl_io *io); 418static void ctl_run_task(union ctl_io *io); 419#ifdef CTL_IO_DELAY 420static void ctl_datamove_timer_wakeup(void *arg); 421static void ctl_done_timer_wakeup(void *arg); 422#endif /* CTL_IO_DELAY */ 423 424static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 425static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 426static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 427static void ctl_datamove_remote_write(union ctl_io *io); 428static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 429static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 430static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 431static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 432 ctl_ha_dt_cb callback); 433static void ctl_datamove_remote_read(union ctl_io *io); 434static void ctl_datamove_remote(union ctl_io *io); 435static int ctl_process_done(union ctl_io *io); 436static void ctl_lun_thread(void *arg); 437static void ctl_work_thread(void *arg); 438static void ctl_enqueue_incoming(union ctl_io *io); 439static void ctl_enqueue_rtr(union ctl_io *io); 440static void ctl_enqueue_done(union ctl_io *io); 441static void ctl_enqueue_isc(union ctl_io *io); 442static const struct ctl_cmd_entry * 443 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 444static const struct ctl_cmd_entry * 445 ctl_validate_command(struct ctl_scsiio *ctsio); 446static int ctl_cmd_applicable(uint8_t lun_type, 447 const struct ctl_cmd_entry *entry); 448 449/* 450 * Load the serialization table. This isn't very pretty, but is probably 451 * the easiest way to do it. 452 */ 453#include "ctl_ser_table.c" 454 455/* 456 * We only need to define open, close and ioctl routines for this driver. 457 */ 458static struct cdevsw ctl_cdevsw = { 459 .d_version = D_VERSION, 460 .d_flags = 0, 461 .d_open = ctl_open, 462 .d_close = ctl_close, 463 .d_ioctl = ctl_ioctl, 464 .d_name = "ctl", 465}; 466 467 468MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 469MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 470 471static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 472 473static moduledata_t ctl_moduledata = { 474 "ctl", 475 ctl_module_event_handler, 476 NULL 477}; 478 479DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 480MODULE_VERSION(ctl, 1); 481 482static struct ctl_frontend ioctl_frontend = 483{ 484 .name = "ioctl", 485}; 486 487static void 488ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 489 union ctl_ha_msg *msg_info) 490{ 491 struct ctl_scsiio *ctsio; 492 493 if (msg_info->hdr.original_sc == NULL) { 494 printf("%s: original_sc == NULL!\n", __func__); 495 /* XXX KDM now what? */ 496 return; 497 } 498 499 ctsio = &msg_info->hdr.original_sc->scsiio; 500 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 501 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 502 ctsio->io_hdr.status = msg_info->hdr.status; 503 ctsio->scsi_status = msg_info->scsi.scsi_status; 504 ctsio->sense_len = msg_info->scsi.sense_len; 505 ctsio->sense_residual = msg_info->scsi.sense_residual; 506 ctsio->residual = msg_info->scsi.residual; 507 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 508 sizeof(ctsio->sense_data)); 509 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 510 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 511 ctl_enqueue_isc((union ctl_io *)ctsio); 512} 513 514static void 515ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 516 union ctl_ha_msg *msg_info) 517{ 518 struct ctl_scsiio *ctsio; 519 520 if (msg_info->hdr.serializing_sc == NULL) { 521 printf("%s: serializing_sc == NULL!\n", __func__); 522 /* XXX KDM now what? */ 523 return; 524 } 525 526 ctsio = &msg_info->hdr.serializing_sc->scsiio; 527#if 0 528 /* 529 * Attempt to catch the situation where an I/O has 530 * been freed, and we're using it again. 531 */ 532 if (ctsio->io_hdr.io_type == 0xff) { 533 union ctl_io *tmp_io; 534 tmp_io = (union ctl_io *)ctsio; 535 printf("%s: %p use after free!\n", __func__, 536 ctsio); 537 printf("%s: type %d msg %d cdb %x iptl: " 538 "%d:%d:%d:%d tag 0x%04x " 539 "flag %#x status %x\n", 540 __func__, 541 tmp_io->io_hdr.io_type, 542 tmp_io->io_hdr.msg_type, 543 tmp_io->scsiio.cdb[0], 544 tmp_io->io_hdr.nexus.initid.id, 545 tmp_io->io_hdr.nexus.targ_port, 546 tmp_io->io_hdr.nexus.targ_target.id, 547 tmp_io->io_hdr.nexus.targ_lun, 548 (tmp_io->io_hdr.io_type == 549 CTL_IO_TASK) ? 550 tmp_io->taskio.tag_num : 551 tmp_io->scsiio.tag_num, 552 tmp_io->io_hdr.flags, 553 tmp_io->io_hdr.status); 554 } 555#endif 556 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 557 ctl_enqueue_isc((union ctl_io *)ctsio); 558} 559 560/* 561 * ISC (Inter Shelf Communication) event handler. Events from the HA 562 * subsystem come in here. 563 */ 564static void 565ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 566{ 567 struct ctl_softc *ctl_softc; 568 union ctl_io *io; 569 struct ctl_prio *presio; 570 ctl_ha_status isc_status; 571 572 ctl_softc = control_softc; 573 io = NULL; 574 575 576#if 0 577 printf("CTL: Isc Msg event %d\n", event); 578#endif 579 if (event == CTL_HA_EVT_MSG_RECV) { 580 union ctl_ha_msg msg_info; 581 582 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 583 sizeof(msg_info), /*wait*/ 0); 584#if 0 585 printf("CTL: msg_type %d\n", msg_info.msg_type); 586#endif 587 if (isc_status != 0) { 588 printf("Error receiving message, status = %d\n", 589 isc_status); 590 return; 591 } 592 593 switch (msg_info.hdr.msg_type) { 594 case CTL_MSG_SERIALIZE: 595#if 0 596 printf("Serialize\n"); 597#endif 598 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 599 if (io == NULL) { 600 printf("ctl_isc_event_handler: can't allocate " 601 "ctl_io!\n"); 602 /* Bad Juju */ 603 /* Need to set busy and send msg back */ 604 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 605 msg_info.hdr.status = CTL_SCSI_ERROR; 606 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 607 msg_info.scsi.sense_len = 0; 608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 609 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 610 } 611 goto bailout; 612 } 613 ctl_zero_io(io); 614 // populate ctsio from msg_info 615 io->io_hdr.io_type = CTL_IO_SCSI; 616 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 617 io->io_hdr.original_sc = msg_info.hdr.original_sc; 618#if 0 619 printf("pOrig %x\n", (int)msg_info.original_sc); 620#endif 621 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 622 CTL_FLAG_IO_ACTIVE; 623 /* 624 * If we're in serialization-only mode, we don't 625 * want to go through full done processing. Thus 626 * the COPY flag. 627 * 628 * XXX KDM add another flag that is more specific. 629 */ 630 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 631 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 632 io->io_hdr.nexus = msg_info.hdr.nexus; 633#if 0 634 printf("targ %d, port %d, iid %d, lun %d\n", 635 io->io_hdr.nexus.targ_target.id, 636 io->io_hdr.nexus.targ_port, 637 io->io_hdr.nexus.initid.id, 638 io->io_hdr.nexus.targ_lun); 639#endif 640 io->scsiio.tag_num = msg_info.scsi.tag_num; 641 io->scsiio.tag_type = msg_info.scsi.tag_type; 642 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 643 CTL_MAX_CDBLEN); 644 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 645 const struct ctl_cmd_entry *entry; 646 647 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 649 io->io_hdr.flags |= 650 entry->flags & CTL_FLAG_DATA_MASK; 651 } 652 ctl_enqueue_isc(io); 653 break; 654 655 /* Performed on the Originating SC, XFER mode only */ 656 case CTL_MSG_DATAMOVE: { 657 struct ctl_sg_entry *sgl; 658 int i, j; 659 660 io = msg_info.hdr.original_sc; 661 if (io == NULL) { 662 printf("%s: original_sc == NULL!\n", __func__); 663 /* XXX KDM do something here */ 664 break; 665 } 666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 668 /* 669 * Keep track of this, we need to send it back over 670 * when the datamove is complete. 671 */ 672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 673 674 if (msg_info.dt.sg_sequence == 0) { 675 /* 676 * XXX KDM we use the preallocated S/G list 677 * here, but we'll need to change this to 678 * dynamic allocation if we need larger S/G 679 * lists. 680 */ 681 if (msg_info.dt.kern_sg_entries > 682 sizeof(io->io_hdr.remote_sglist) / 683 sizeof(io->io_hdr.remote_sglist[0])) { 684 printf("%s: number of S/G entries " 685 "needed %u > allocated num %zd\n", 686 __func__, 687 msg_info.dt.kern_sg_entries, 688 sizeof(io->io_hdr.remote_sglist)/ 689 sizeof(io->io_hdr.remote_sglist[0])); 690 691 /* 692 * XXX KDM send a message back to 693 * the other side to shut down the 694 * DMA. The error will come back 695 * through via the normal channel. 696 */ 697 break; 698 } 699 sgl = io->io_hdr.remote_sglist; 700 memset(sgl, 0, 701 sizeof(io->io_hdr.remote_sglist)); 702 703 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 704 705 io->scsiio.kern_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.rem_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.kern_data_len = 710 msg_info.dt.kern_data_len; 711 io->scsiio.kern_total_len = 712 msg_info.dt.kern_total_len; 713 io->scsiio.kern_data_resid = 714 msg_info.dt.kern_data_resid; 715 io->scsiio.kern_rel_offset = 716 msg_info.dt.kern_rel_offset; 717 /* 718 * Clear out per-DMA flags. 719 */ 720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 721 /* 722 * Add per-DMA flags that are set for this 723 * particular DMA request. 724 */ 725 io->io_hdr.flags |= msg_info.dt.flags & 726 CTL_FLAG_RDMA_MASK; 727 } else 728 sgl = (struct ctl_sg_entry *) 729 io->scsiio.kern_data_ptr; 730 731 for (i = msg_info.dt.sent_sg_entries, j = 0; 732 i < (msg_info.dt.sent_sg_entries + 733 msg_info.dt.cur_sg_entries); i++, j++) { 734 sgl[i].addr = msg_info.dt.sg_list[j].addr; 735 sgl[i].len = msg_info.dt.sg_list[j].len; 736 737#if 0 738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 739 __func__, 740 msg_info.dt.sg_list[j].addr, 741 msg_info.dt.sg_list[j].len, 742 sgl[i].addr, sgl[i].len, j, i); 743#endif 744 } 745#if 0 746 memcpy(&sgl[msg_info.dt.sent_sg_entries], 747 msg_info.dt.sg_list, 748 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 749#endif 750 751 /* 752 * If this is the last piece of the I/O, we've got 753 * the full S/G list. Queue processing in the thread. 754 * Otherwise wait for the next piece. 755 */ 756 if (msg_info.dt.sg_last != 0) 757 ctl_enqueue_isc(io); 758 break; 759 } 760 /* Performed on the Serializing (primary) SC, XFER mode only */ 761 case CTL_MSG_DATAMOVE_DONE: { 762 if (msg_info.hdr.serializing_sc == NULL) { 763 printf("%s: serializing_sc == NULL!\n", 764 __func__); 765 /* XXX KDM now what? */ 766 break; 767 } 768 /* 769 * We grab the sense information here in case 770 * there was a failure, so we can return status 771 * back to the initiator. 772 */ 773 io = msg_info.hdr.serializing_sc; 774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 775 io->io_hdr.status = msg_info.hdr.status; 776 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 777 io->scsiio.sense_len = msg_info.scsi.sense_len; 778 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 779 io->io_hdr.port_status = msg_info.scsi.fetd_status; 780 io->scsiio.residual = msg_info.scsi.residual; 781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 782 sizeof(io->scsiio.sense_data)); 783 ctl_enqueue_isc(io); 784 break; 785 } 786 787 /* Preformed on Originating SC, SER_ONLY mode */ 788 case CTL_MSG_R2R: 789 io = msg_info.hdr.original_sc; 790 if (io == NULL) { 791 printf("%s: Major Bummer\n", __func__); 792 return; 793 } else { 794#if 0 795 printf("pOrig %x\n",(int) ctsio); 796#endif 797 } 798 io->io_hdr.msg_type = CTL_MSG_R2R; 799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 800 ctl_enqueue_isc(io); 801 break; 802 803 /* 804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 805 * mode. 806 * Performed on the Originating (i.e. secondary) SC in XFER 807 * mode 808 */ 809 case CTL_MSG_FINISH_IO: 810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 811 ctl_isc_handler_finish_xfer(ctl_softc, 812 &msg_info); 813 else 814 ctl_isc_handler_finish_ser_only(ctl_softc, 815 &msg_info); 816 break; 817 818 /* Preformed on Originating SC */ 819 case CTL_MSG_BAD_JUJU: 820 io = msg_info.hdr.original_sc; 821 if (io == NULL) { 822 printf("%s: Bad JUJU!, original_sc is NULL!\n", 823 __func__); 824 break; 825 } 826 ctl_copy_sense_data(&msg_info, io); 827 /* 828 * IO should have already been cleaned up on other 829 * SC so clear this flag so we won't send a message 830 * back to finish the IO there. 831 */ 832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 834 835 /* io = msg_info.hdr.serializing_sc; */ 836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 837 ctl_enqueue_isc(io); 838 break; 839 840 /* Handle resets sent from the other side */ 841 case CTL_MSG_MANAGE_TASKS: { 842 struct ctl_taskio *taskio; 843 taskio = (struct ctl_taskio *)ctl_alloc_io( 844 (void *)ctl_softc->othersc_pool); 845 if (taskio == NULL) { 846 printf("ctl_isc_event_handler: can't allocate " 847 "ctl_io!\n"); 848 /* Bad Juju */ 849 /* should I just call the proper reset func 850 here??? */ 851 goto bailout; 852 } 853 ctl_zero_io((union ctl_io *)taskio); 854 taskio->io_hdr.io_type = CTL_IO_TASK; 855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 856 taskio->io_hdr.nexus = msg_info.hdr.nexus; 857 taskio->task_action = msg_info.task.task_action; 858 taskio->tag_num = msg_info.task.tag_num; 859 taskio->tag_type = msg_info.task.tag_type; 860#ifdef CTL_TIME_IO 861 taskio->io_hdr.start_time = time_uptime; 862 getbintime(&taskio->io_hdr.start_bt); 863#if 0 864 cs_prof_gettime(&taskio->io_hdr.start_ticks); 865#endif 866#endif /* CTL_TIME_IO */ 867 ctl_run_task((union ctl_io *)taskio); 868 break; 869 } 870 /* Persistent Reserve action which needs attention */ 871 case CTL_MSG_PERS_ACTION: 872 presio = (struct ctl_prio *)ctl_alloc_io( 873 (void *)ctl_softc->othersc_pool); 874 if (presio == NULL) { 875 printf("ctl_isc_event_handler: can't allocate " 876 "ctl_io!\n"); 877 /* Bad Juju */ 878 /* Need to set busy and send msg back */ 879 goto bailout; 880 } 881 ctl_zero_io((union ctl_io *)presio); 882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 883 presio->pr_msg = msg_info.pr; 884 ctl_enqueue_isc((union ctl_io *)presio); 885 break; 886 case CTL_MSG_SYNC_FE: 887 rcv_sync_msg = 1; 888 break; 889 case CTL_MSG_APS_LOCK: { 890 // It's quicker to execute this then to 891 // queue it. 892 struct ctl_lun *lun; 893 struct ctl_page_index *page_index; 894 struct copan_aps_subpage *current_sp; 895 uint32_t targ_lun; 896 897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 898 lun = ctl_softc->ctl_luns[targ_lun]; 899 mtx_lock(&lun->lun_lock); 900 page_index = &lun->mode_pages.index[index_to_aps_page]; 901 current_sp = (struct copan_aps_subpage *) 902 (page_index->page_data + 903 (page_index->page_len * CTL_PAGE_CURRENT)); 904 905 current_sp->lock_active = msg_info.aps.lock_flag; 906 mtx_unlock(&lun->lun_lock); 907 break; 908 } 909 default: 910 printf("How did I get here?\n"); 911 } 912 } else if (event == CTL_HA_EVT_MSG_SENT) { 913 if (param != CTL_HA_STATUS_SUCCESS) { 914 printf("Bad status from ctl_ha_msg_send status %d\n", 915 param); 916 } 917 return; 918 } else if (event == CTL_HA_EVT_DISCONNECT) { 919 printf("CTL: Got a disconnect from Isc\n"); 920 return; 921 } else { 922 printf("ctl_isc_event_handler: Unknown event %d\n", event); 923 return; 924 } 925 926bailout: 927 return; 928} 929 930static void 931ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 932{ 933 struct scsi_sense_data *sense; 934 935 sense = &dest->scsiio.sense_data; 936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 937 dest->scsiio.scsi_status = src->scsi.scsi_status; 938 dest->scsiio.sense_len = src->scsi.sense_len; 939 dest->io_hdr.status = src->hdr.status; 940} 941 942static int 943ctl_init(void) 944{ 945 struct ctl_softc *softc; 946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 947 struct ctl_port *port; 948 uint8_t sc_id =0; 949 int i, error, retval; 950 //int isc_retval; 951 952 retval = 0; 953 ctl_pause_rtr = 0; 954 rcv_sync_msg = 0; 955 956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 957 M_WAITOK | M_ZERO); 958 softc = control_softc; 959 960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 961 "cam/ctl"); 962 963 softc->dev->si_drv1 = softc; 964 965 /* 966 * By default, return a "bad LUN" peripheral qualifier for unknown 967 * LUNs. The user can override this default using the tunable or 968 * sysctl. See the comment in ctl_inquiry_std() for more details. 969 */ 970 softc->inquiry_pq_no_lun = 1; 971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 972 &softc->inquiry_pq_no_lun); 973 sysctl_ctx_init(&softc->sysctl_ctx); 974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 976 CTLFLAG_RD, 0, "CAM Target Layer"); 977 978 if (softc->sysctl_tree == NULL) { 979 printf("%s: unable to allocate sysctl tree\n", __func__); 980 destroy_dev(softc->dev); 981 free(control_softc, M_DEVBUF); 982 control_softc = NULL; 983 return (ENOMEM); 984 } 985 986 SYSCTL_ADD_INT(&softc->sysctl_ctx, 987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 988 "inquiry_pq_no_lun", CTLFLAG_RW, 989 &softc->inquiry_pq_no_lun, 0, 990 "Report no lun possible for invalid LUNs"); 991 992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 994 softc->open_count = 0; 995 996 /* 997 * Default to actually sending a SYNCHRONIZE CACHE command down to 998 * the drive. 999 */ 1000 softc->flags = CTL_FLAG_REAL_SYNC; 1001 1002 /* 1003 * In Copan's HA scheme, the "master" and "slave" roles are 1004 * figured out through the slot the controller is in. Although it 1005 * is an active/active system, someone has to be in charge. 1006 */ 1007#ifdef NEEDTOPORT 1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1009#endif 1010 1011 if (sc_id == 0) { 1012 softc->flags |= CTL_FLAG_MASTER_SHELF; 1013 persis_offset = 0; 1014 } else 1015 persis_offset = CTL_MAX_INITIATORS; 1016 1017 /* 1018 * XXX KDM need to figure out where we want to get our target ID 1019 * and WWID. Is it different on each port? 1020 */ 1021 softc->target.id = 0; 1022 softc->target.wwid[0] = 0x12345678; 1023 softc->target.wwid[1] = 0x87654321; 1024 STAILQ_INIT(&softc->lun_list); 1025 STAILQ_INIT(&softc->pending_lun_queue); 1026 STAILQ_INIT(&softc->fe_list); 1027 STAILQ_INIT(&softc->port_list); 1028 STAILQ_INIT(&softc->be_list); 1029 STAILQ_INIT(&softc->io_pools); 1030 ctl_tpc_init(softc); 1031 1032 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1033 &internal_pool)!= 0){ 1034 printf("ctl: can't allocate %d entry internal pool, " 1035 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1036 return (ENOMEM); 1037 } 1038 1039 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1040 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1041 printf("ctl: can't allocate %d entry emergency pool, " 1042 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1043 ctl_pool_free(internal_pool); 1044 return (ENOMEM); 1045 } 1046 1047 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1048 &other_pool) != 0) 1049 { 1050 printf("ctl: can't allocate %d entry other SC pool, " 1051 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1052 ctl_pool_free(internal_pool); 1053 ctl_pool_free(emergency_pool); 1054 return (ENOMEM); 1055 } 1056 1057 softc->internal_pool = internal_pool; 1058 softc->emergency_pool = emergency_pool; 1059 softc->othersc_pool = other_pool; 1060 1061 if (worker_threads <= 0) 1062 worker_threads = max(1, mp_ncpus / 4); 1063 if (worker_threads > CTL_MAX_THREADS) 1064 worker_threads = CTL_MAX_THREADS; 1065 1066 for (i = 0; i < worker_threads; i++) { 1067 struct ctl_thread *thr = &softc->threads[i]; 1068 1069 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1070 thr->ctl_softc = softc; 1071 STAILQ_INIT(&thr->incoming_queue); 1072 STAILQ_INIT(&thr->rtr_queue); 1073 STAILQ_INIT(&thr->done_queue); 1074 STAILQ_INIT(&thr->isc_queue); 1075 1076 error = kproc_kthread_add(ctl_work_thread, thr, 1077 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1078 if (error != 0) { 1079 printf("error creating CTL work thread!\n"); 1080 ctl_pool_free(internal_pool); 1081 ctl_pool_free(emergency_pool); 1082 ctl_pool_free(other_pool); 1083 return (error); 1084 } 1085 } 1086 error = kproc_kthread_add(ctl_lun_thread, softc, 1087 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1088 if (error != 0) { 1089 printf("error creating CTL lun thread!\n"); 1090 ctl_pool_free(internal_pool); 1091 ctl_pool_free(emergency_pool); 1092 ctl_pool_free(other_pool); 1093 return (error); 1094 } 1095 if (bootverbose) 1096 printf("ctl: CAM Target Layer loaded\n"); 1097 1098 /* 1099 * Initialize the ioctl front end. 1100 */ 1101 ctl_frontend_register(&ioctl_frontend); 1102 port = &softc->ioctl_info.port; 1103 port->frontend = &ioctl_frontend; 1104 sprintf(softc->ioctl_info.port_name, "ioctl"); 1105 port->port_type = CTL_PORT_IOCTL; 1106 port->num_requested_ctl_io = 100; 1107 port->port_name = softc->ioctl_info.port_name; 1108 port->port_online = ctl_ioctl_online; 1109 port->port_offline = ctl_ioctl_offline; 1110 port->onoff_arg = &softc->ioctl_info; 1111 port->lun_enable = ctl_ioctl_lun_enable; 1112 port->lun_disable = ctl_ioctl_lun_disable; 1113 port->targ_lun_arg = &softc->ioctl_info; 1114 port->fe_datamove = ctl_ioctl_datamove; 1115 port->fe_done = ctl_ioctl_done; 1116 port->max_targets = 15; 1117 port->max_target_id = 15; 1118 1119 if (ctl_port_register(&softc->ioctl_info.port, 1120 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1121 printf("ctl: ioctl front end registration failed, will " 1122 "continue anyway\n"); 1123 } 1124 1125#ifdef CTL_IO_DELAY 1126 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1127 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1128 sizeof(struct callout), CTL_TIMER_BYTES); 1129 return (EINVAL); 1130 } 1131#endif /* CTL_IO_DELAY */ 1132 1133 return (0); 1134} 1135 1136void 1137ctl_shutdown(void) 1138{ 1139 struct ctl_softc *softc; 1140 struct ctl_lun *lun, *next_lun; 1141 struct ctl_io_pool *pool; 1142 1143 softc = (struct ctl_softc *)control_softc; 1144 1145 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1146 printf("ctl: ioctl front end deregistration failed\n"); 1147 1148 mtx_lock(&softc->ctl_lock); 1149 1150 /* 1151 * Free up each LUN. 1152 */ 1153 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1154 next_lun = STAILQ_NEXT(lun, links); 1155 ctl_free_lun(lun); 1156 } 1157 1158 mtx_unlock(&softc->ctl_lock); 1159 1160 ctl_frontend_deregister(&ioctl_frontend); 1161 1162 /* 1163 * This will rip the rug out from under any FETDs or anyone else 1164 * that has a pool allocated. Since we increment our module 1165 * refcount any time someone outside the main CTL module allocates 1166 * a pool, we shouldn't have any problems here. The user won't be 1167 * able to unload the CTL module until client modules have 1168 * successfully unloaded. 1169 */ 1170 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1171 ctl_pool_free(pool); 1172 1173#if 0 1174 ctl_shutdown_thread(softc->work_thread); 1175 mtx_destroy(&softc->queue_lock); 1176#endif 1177 1178 ctl_tpc_shutdown(softc); 1179 mtx_destroy(&softc->pool_lock); 1180 mtx_destroy(&softc->ctl_lock); 1181 1182 destroy_dev(softc->dev); 1183 1184 sysctl_ctx_free(&softc->sysctl_ctx); 1185 1186 free(control_softc, M_DEVBUF); 1187 control_softc = NULL; 1188 1189 if (bootverbose) 1190 printf("ctl: CAM Target Layer unloaded\n"); 1191} 1192 1193static int 1194ctl_module_event_handler(module_t mod, int what, void *arg) 1195{ 1196 1197 switch (what) { 1198 case MOD_LOAD: 1199 return (ctl_init()); 1200 case MOD_UNLOAD: 1201 return (EBUSY); 1202 default: 1203 return (EOPNOTSUPP); 1204 } 1205} 1206 1207/* 1208 * XXX KDM should we do some access checks here? Bump a reference count to 1209 * prevent a CTL module from being unloaded while someone has it open? 1210 */ 1211static int 1212ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1213{ 1214 return (0); 1215} 1216 1217static int 1218ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1219{ 1220 return (0); 1221} 1222 1223int 1224ctl_port_enable(ctl_port_type port_type) 1225{ 1226 struct ctl_softc *softc; 1227 struct ctl_port *port; 1228 1229 if (ctl_is_single == 0) { 1230 union ctl_ha_msg msg_info; 1231 int isc_retval; 1232 1233#if 0 1234 printf("%s: HA mode, synchronizing frontend enable\n", 1235 __func__); 1236#endif 1237 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1238 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1239 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1240 printf("Sync msg send error retval %d\n", isc_retval); 1241 } 1242 if (!rcv_sync_msg) { 1243 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1244 sizeof(msg_info), 1); 1245 } 1246#if 0 1247 printf("CTL:Frontend Enable\n"); 1248 } else { 1249 printf("%s: single mode, skipping frontend synchronization\n", 1250 __func__); 1251#endif 1252 } 1253 1254 softc = control_softc; 1255 1256 STAILQ_FOREACH(port, &softc->port_list, links) { 1257 if (port_type & port->port_type) 1258 { 1259#if 0 1260 printf("port %d\n", port->targ_port); 1261#endif 1262 ctl_port_online(port); 1263 } 1264 } 1265 1266 return (0); 1267} 1268 1269int 1270ctl_port_disable(ctl_port_type port_type) 1271{ 1272 struct ctl_softc *softc; 1273 struct ctl_port *port; 1274 1275 softc = control_softc; 1276 1277 STAILQ_FOREACH(port, &softc->port_list, links) { 1278 if (port_type & port->port_type) 1279 ctl_port_offline(port); 1280 } 1281 1282 return (0); 1283} 1284 1285/* 1286 * Returns 0 for success, 1 for failure. 1287 * Currently the only failure mode is if there aren't enough entries 1288 * allocated. So, in case of a failure, look at num_entries_dropped, 1289 * reallocate and try again. 1290 */ 1291int 1292ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1293 int *num_entries_filled, int *num_entries_dropped, 1294 ctl_port_type port_type, int no_virtual) 1295{ 1296 struct ctl_softc *softc; 1297 struct ctl_port *port; 1298 int entries_dropped, entries_filled; 1299 int retval; 1300 int i; 1301 1302 softc = control_softc; 1303 1304 retval = 0; 1305 entries_filled = 0; 1306 entries_dropped = 0; 1307 1308 i = 0; 1309 mtx_lock(&softc->ctl_lock); 1310 STAILQ_FOREACH(port, &softc->port_list, links) { 1311 struct ctl_port_entry *entry; 1312 1313 if ((port->port_type & port_type) == 0) 1314 continue; 1315 1316 if ((no_virtual != 0) 1317 && (port->virtual_port != 0)) 1318 continue; 1319 1320 if (entries_filled >= num_entries_alloced) { 1321 entries_dropped++; 1322 continue; 1323 } 1324 entry = &entries[i]; 1325 1326 entry->port_type = port->port_type; 1327 strlcpy(entry->port_name, port->port_name, 1328 sizeof(entry->port_name)); 1329 entry->physical_port = port->physical_port; 1330 entry->virtual_port = port->virtual_port; 1331 entry->wwnn = port->wwnn; 1332 entry->wwpn = port->wwpn; 1333 1334 i++; 1335 entries_filled++; 1336 } 1337 1338 mtx_unlock(&softc->ctl_lock); 1339 1340 if (entries_dropped > 0) 1341 retval = 1; 1342 1343 *num_entries_dropped = entries_dropped; 1344 *num_entries_filled = entries_filled; 1345 1346 return (retval); 1347} 1348 1349static void 1350ctl_ioctl_online(void *arg) 1351{ 1352 struct ctl_ioctl_info *ioctl_info; 1353 1354 ioctl_info = (struct ctl_ioctl_info *)arg; 1355 1356 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1357} 1358 1359static void 1360ctl_ioctl_offline(void *arg) 1361{ 1362 struct ctl_ioctl_info *ioctl_info; 1363 1364 ioctl_info = (struct ctl_ioctl_info *)arg; 1365 1366 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1367} 1368 1369/* 1370 * Remove an initiator by port number and initiator ID. 1371 * Returns 0 for success, -1 for failure. 1372 */ 1373int 1374ctl_remove_initiator(struct ctl_port *port, int iid) 1375{ 1376 struct ctl_softc *softc = control_softc; 1377 1378 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1379 1380 if (iid > CTL_MAX_INIT_PER_PORT) { 1381 printf("%s: initiator ID %u > maximun %u!\n", 1382 __func__, iid, CTL_MAX_INIT_PER_PORT); 1383 return (-1); 1384 } 1385 1386 mtx_lock(&softc->ctl_lock); 1387 port->wwpn_iid[iid].in_use--; 1388 port->wwpn_iid[iid].last_use = time_uptime; 1389 mtx_unlock(&softc->ctl_lock); 1390 1391 return (0); 1392} 1393 1394/* 1395 * Add an initiator to the initiator map. 1396 * Returns iid for success, < 0 for failure. 1397 */ 1398int 1399ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1400{ 1401 struct ctl_softc *softc = control_softc; 1402 time_t best_time; 1403 int i, best; 1404 1405 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1406 1407 if (iid >= CTL_MAX_INIT_PER_PORT) { 1408 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1409 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1410 free(name, M_CTL); 1411 return (-1); 1412 } 1413 1414 mtx_lock(&softc->ctl_lock); 1415 1416 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1417 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1418 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1419 iid = i; 1420 break; 1421 } 1422 if (name != NULL && port->wwpn_iid[i].name != NULL && 1423 strcmp(name, port->wwpn_iid[i].name) == 0) { 1424 iid = i; 1425 break; 1426 } 1427 } 1428 } 1429 1430 if (iid < 0) { 1431 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1432 if (port->wwpn_iid[i].in_use == 0 && 1433 port->wwpn_iid[i].wwpn == 0 && 1434 port->wwpn_iid[i].name == NULL) { 1435 iid = i; 1436 break; 1437 } 1438 } 1439 } 1440 1441 if (iid < 0) { 1442 best = -1; 1443 best_time = INT32_MAX; 1444 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1445 if (port->wwpn_iid[i].in_use == 0) { 1446 if (port->wwpn_iid[i].last_use < best_time) { 1447 best = i; 1448 best_time = port->wwpn_iid[i].last_use; 1449 } 1450 } 1451 } 1452 iid = best; 1453 } 1454 1455 if (iid < 0) { 1456 mtx_unlock(&softc->ctl_lock); 1457 free(name, M_CTL); 1458 return (-2); 1459 } 1460 1461 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1462 /* 1463 * This is not an error yet. 1464 */ 1465 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1466#if 0 1467 printf("%s: port %d iid %u WWPN %#jx arrived" 1468 " again\n", __func__, port->targ_port, 1469 iid, (uintmax_t)wwpn); 1470#endif 1471 goto take; 1472 } 1473 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1474 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1475#if 0 1476 printf("%s: port %d iid %u name '%s' arrived" 1477 " again\n", __func__, port->targ_port, 1478 iid, name); 1479#endif 1480 goto take; 1481 } 1482 1483 /* 1484 * This is an error, but what do we do about it? The 1485 * driver is telling us we have a new WWPN for this 1486 * initiator ID, so we pretty much need to use it. 1487 */ 1488 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1489 " but WWPN %#jx '%s' is still at that address\n", 1490 __func__, port->targ_port, iid, wwpn, name, 1491 (uintmax_t)port->wwpn_iid[iid].wwpn, 1492 port->wwpn_iid[iid].name); 1493 1494 /* 1495 * XXX KDM clear have_ca and ua_pending on each LUN for 1496 * this initiator. 1497 */ 1498 } 1499take: 1500 free(port->wwpn_iid[iid].name, M_CTL); 1501 port->wwpn_iid[iid].name = name; 1502 port->wwpn_iid[iid].wwpn = wwpn; 1503 port->wwpn_iid[iid].in_use++; 1504 mtx_unlock(&softc->ctl_lock); 1505 1506 return (iid); 1507} 1508 1509static int 1510ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1511{ 1512 int len; 1513 1514 switch (port->port_type) { 1515 case CTL_PORT_FC: 1516 { 1517 struct scsi_transportid_fcp *id = 1518 (struct scsi_transportid_fcp *)buf; 1519 if (port->wwpn_iid[iid].wwpn == 0) 1520 return (0); 1521 memset(id, 0, sizeof(*id)); 1522 id->format_protocol = SCSI_PROTO_FC; 1523 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1524 return (sizeof(*id)); 1525 } 1526 case CTL_PORT_ISCSI: 1527 { 1528 struct scsi_transportid_iscsi_port *id = 1529 (struct scsi_transportid_iscsi_port *)buf; 1530 if (port->wwpn_iid[iid].name == NULL) 1531 return (0); 1532 memset(id, 0, 256); 1533 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1534 SCSI_PROTO_ISCSI; 1535 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1536 len = roundup2(min(len, 252), 4); 1537 scsi_ulto2b(len, id->additional_length); 1538 return (sizeof(*id) + len); 1539 } 1540 case CTL_PORT_SAS: 1541 { 1542 struct scsi_transportid_sas *id = 1543 (struct scsi_transportid_sas *)buf; 1544 if (port->wwpn_iid[iid].wwpn == 0) 1545 return (0); 1546 memset(id, 0, sizeof(*id)); 1547 id->format_protocol = SCSI_PROTO_SAS; 1548 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1549 return (sizeof(*id)); 1550 } 1551 default: 1552 { 1553 struct scsi_transportid_spi *id = 1554 (struct scsi_transportid_spi *)buf; 1555 memset(id, 0, sizeof(*id)); 1556 id->format_protocol = SCSI_PROTO_SPI; 1557 scsi_ulto2b(iid, id->scsi_addr); 1558 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1559 return (sizeof(*id)); 1560 } 1561 } 1562} 1563 1564static int 1565ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1566{ 1567 return (0); 1568} 1569 1570static int 1571ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1572{ 1573 return (0); 1574} 1575 1576/* 1577 * Data movement routine for the CTL ioctl frontend port. 1578 */ 1579static int 1580ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1581{ 1582 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1583 struct ctl_sg_entry ext_entry, kern_entry; 1584 int ext_sglen, ext_sg_entries, kern_sg_entries; 1585 int ext_sg_start, ext_offset; 1586 int len_to_copy, len_copied; 1587 int kern_watermark, ext_watermark; 1588 int ext_sglist_malloced; 1589 int i, j; 1590 1591 ext_sglist_malloced = 0; 1592 ext_sg_start = 0; 1593 ext_offset = 0; 1594 1595 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1596 1597 /* 1598 * If this flag is set, fake the data transfer. 1599 */ 1600 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1601 ctsio->ext_data_filled = ctsio->ext_data_len; 1602 goto bailout; 1603 } 1604 1605 /* 1606 * To simplify things here, if we have a single buffer, stick it in 1607 * a S/G entry and just make it a single entry S/G list. 1608 */ 1609 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1610 int len_seen; 1611 1612 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1613 1614 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1615 M_WAITOK); 1616 ext_sglist_malloced = 1; 1617 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1618 ext_sglen) != 0) { 1619 ctl_set_internal_failure(ctsio, 1620 /*sks_valid*/ 0, 1621 /*retry_count*/ 0); 1622 goto bailout; 1623 } 1624 ext_sg_entries = ctsio->ext_sg_entries; 1625 len_seen = 0; 1626 for (i = 0; i < ext_sg_entries; i++) { 1627 if ((len_seen + ext_sglist[i].len) >= 1628 ctsio->ext_data_filled) { 1629 ext_sg_start = i; 1630 ext_offset = ctsio->ext_data_filled - len_seen; 1631 break; 1632 } 1633 len_seen += ext_sglist[i].len; 1634 } 1635 } else { 1636 ext_sglist = &ext_entry; 1637 ext_sglist->addr = ctsio->ext_data_ptr; 1638 ext_sglist->len = ctsio->ext_data_len; 1639 ext_sg_entries = 1; 1640 ext_sg_start = 0; 1641 ext_offset = ctsio->ext_data_filled; 1642 } 1643 1644 if (ctsio->kern_sg_entries > 0) { 1645 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1646 kern_sg_entries = ctsio->kern_sg_entries; 1647 } else { 1648 kern_sglist = &kern_entry; 1649 kern_sglist->addr = ctsio->kern_data_ptr; 1650 kern_sglist->len = ctsio->kern_data_len; 1651 kern_sg_entries = 1; 1652 } 1653 1654 1655 kern_watermark = 0; 1656 ext_watermark = ext_offset; 1657 len_copied = 0; 1658 for (i = ext_sg_start, j = 0; 1659 i < ext_sg_entries && j < kern_sg_entries;) { 1660 uint8_t *ext_ptr, *kern_ptr; 1661 1662 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1663 kern_sglist[j].len - kern_watermark); 1664 1665 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1666 ext_ptr = ext_ptr + ext_watermark; 1667 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1668 /* 1669 * XXX KDM fix this! 1670 */ 1671 panic("need to implement bus address support"); 1672#if 0 1673 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1674#endif 1675 } else 1676 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1677 kern_ptr = kern_ptr + kern_watermark; 1678 1679 kern_watermark += len_to_copy; 1680 ext_watermark += len_to_copy; 1681 1682 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1683 CTL_FLAG_DATA_IN) { 1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1685 "bytes to user\n", len_to_copy)); 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1687 "to %p\n", kern_ptr, ext_ptr)); 1688 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1689 ctl_set_internal_failure(ctsio, 1690 /*sks_valid*/ 0, 1691 /*retry_count*/ 0); 1692 goto bailout; 1693 } 1694 } else { 1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1696 "bytes from user\n", len_to_copy)); 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1698 "to %p\n", ext_ptr, kern_ptr)); 1699 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1700 ctl_set_internal_failure(ctsio, 1701 /*sks_valid*/ 0, 1702 /*retry_count*/0); 1703 goto bailout; 1704 } 1705 } 1706 1707 len_copied += len_to_copy; 1708 1709 if (ext_sglist[i].len == ext_watermark) { 1710 i++; 1711 ext_watermark = 0; 1712 } 1713 1714 if (kern_sglist[j].len == kern_watermark) { 1715 j++; 1716 kern_watermark = 0; 1717 } 1718 } 1719 1720 ctsio->ext_data_filled += len_copied; 1721 1722 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1723 "kern_sg_entries: %d\n", ext_sg_entries, 1724 kern_sg_entries)); 1725 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1726 "kern_data_len = %d\n", ctsio->ext_data_len, 1727 ctsio->kern_data_len)); 1728 1729 1730 /* XXX KDM set residual?? */ 1731bailout: 1732 1733 if (ext_sglist_malloced != 0) 1734 free(ext_sglist, M_CTL); 1735 1736 return (CTL_RETVAL_COMPLETE); 1737} 1738 1739/* 1740 * Serialize a command that went down the "wrong" side, and so was sent to 1741 * this controller for execution. The logic is a little different than the 1742 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1743 * sent back to the other side, but in the success case, we execute the 1744 * command on this side (XFER mode) or tell the other side to execute it 1745 * (SER_ONLY mode). 1746 */ 1747static int 1748ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1749{ 1750 struct ctl_softc *ctl_softc; 1751 union ctl_ha_msg msg_info; 1752 struct ctl_lun *lun; 1753 int retval = 0; 1754 uint32_t targ_lun; 1755 1756 ctl_softc = control_softc; 1757 1758 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1759 lun = ctl_softc->ctl_luns[targ_lun]; 1760 if (lun==NULL) 1761 { 1762 /* 1763 * Why isn't LUN defined? The other side wouldn't 1764 * send a cmd if the LUN is undefined. 1765 */ 1766 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1767 1768 /* "Logical unit not supported" */ 1769 ctl_set_sense_data(&msg_info.scsi.sense_data, 1770 lun, 1771 /*sense_format*/SSD_TYPE_NONE, 1772 /*current_error*/ 1, 1773 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1774 /*asc*/ 0x25, 1775 /*ascq*/ 0x00, 1776 SSD_ELEM_NONE); 1777 1778 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1779 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1780 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1781 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1782 msg_info.hdr.serializing_sc = NULL; 1783 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1784 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1785 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1786 } 1787 return(1); 1788 1789 } 1790 1791 mtx_lock(&lun->lun_lock); 1792 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1793 1794 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1795 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1796 ooa_links))) { 1797 case CTL_ACTION_BLOCK: 1798 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1799 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1800 blocked_links); 1801 break; 1802 case CTL_ACTION_PASS: 1803 case CTL_ACTION_SKIP: 1804 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1805 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1806 ctl_enqueue_rtr((union ctl_io *)ctsio); 1807 } else { 1808 1809 /* send msg back to other side */ 1810 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1811 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1812 msg_info.hdr.msg_type = CTL_MSG_R2R; 1813#if 0 1814 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1815#endif 1816 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1817 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1818 } 1819 } 1820 break; 1821 case CTL_ACTION_OVERLAP: 1822 /* OVERLAPPED COMMANDS ATTEMPTED */ 1823 ctl_set_sense_data(&msg_info.scsi.sense_data, 1824 lun, 1825 /*sense_format*/SSD_TYPE_NONE, 1826 /*current_error*/ 1, 1827 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1828 /*asc*/ 0x4E, 1829 /*ascq*/ 0x00, 1830 SSD_ELEM_NONE); 1831 1832 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1833 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1834 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1835 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1836 msg_info.hdr.serializing_sc = NULL; 1837 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1838#if 0 1839 printf("BAD JUJU:Major Bummer Overlap\n"); 1840#endif 1841 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1842 retval = 1; 1843 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1844 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1845 } 1846 break; 1847 case CTL_ACTION_OVERLAP_TAG: 1848 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1849 ctl_set_sense_data(&msg_info.scsi.sense_data, 1850 lun, 1851 /*sense_format*/SSD_TYPE_NONE, 1852 /*current_error*/ 1, 1853 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1854 /*asc*/ 0x4D, 1855 /*ascq*/ ctsio->tag_num & 0xff, 1856 SSD_ELEM_NONE); 1857 1858 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1859 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1860 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864#if 0 1865 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1866#endif 1867 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1868 retval = 1; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 break; 1873 case CTL_ACTION_ERROR: 1874 default: 1875 /* "Internal target failure" */ 1876 ctl_set_sense_data(&msg_info.scsi.sense_data, 1877 lun, 1878 /*sense_format*/SSD_TYPE_NONE, 1879 /*current_error*/ 1, 1880 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1881 /*asc*/ 0x44, 1882 /*ascq*/ 0x00, 1883 SSD_ELEM_NONE); 1884 1885 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1886 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1887 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1888 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1889 msg_info.hdr.serializing_sc = NULL; 1890 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1891#if 0 1892 printf("BAD JUJU:Major Bummer HW Error\n"); 1893#endif 1894 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1895 retval = 1; 1896 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1897 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1898 } 1899 break; 1900 } 1901 mtx_unlock(&lun->lun_lock); 1902 return (retval); 1903} 1904 1905static int 1906ctl_ioctl_submit_wait(union ctl_io *io) 1907{ 1908 struct ctl_fe_ioctl_params params; 1909 ctl_fe_ioctl_state last_state; 1910 int done, retval; 1911 1912 retval = 0; 1913 1914 bzero(¶ms, sizeof(params)); 1915 1916 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1917 cv_init(¶ms.sem, "ctlioccv"); 1918 params.state = CTL_IOCTL_INPROG; 1919 last_state = params.state; 1920 1921 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1922 1923 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1924 1925 /* This shouldn't happen */ 1926 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1927 return (retval); 1928 1929 done = 0; 1930 1931 do { 1932 mtx_lock(¶ms.ioctl_mtx); 1933 /* 1934 * Check the state here, and don't sleep if the state has 1935 * already changed (i.e. wakeup has already occured, but we 1936 * weren't waiting yet). 1937 */ 1938 if (params.state == last_state) { 1939 /* XXX KDM cv_wait_sig instead? */ 1940 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1941 } 1942 last_state = params.state; 1943 1944 switch (params.state) { 1945 case CTL_IOCTL_INPROG: 1946 /* Why did we wake up? */ 1947 /* XXX KDM error here? */ 1948 mtx_unlock(¶ms.ioctl_mtx); 1949 break; 1950 case CTL_IOCTL_DATAMOVE: 1951 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1952 1953 /* 1954 * change last_state back to INPROG to avoid 1955 * deadlock on subsequent data moves. 1956 */ 1957 params.state = last_state = CTL_IOCTL_INPROG; 1958 1959 mtx_unlock(¶ms.ioctl_mtx); 1960 ctl_ioctl_do_datamove(&io->scsiio); 1961 /* 1962 * Note that in some cases, most notably writes, 1963 * this will queue the I/O and call us back later. 1964 * In other cases, generally reads, this routine 1965 * will immediately call back and wake us up, 1966 * probably using our own context. 1967 */ 1968 io->scsiio.be_move_done(io); 1969 break; 1970 case CTL_IOCTL_DONE: 1971 mtx_unlock(¶ms.ioctl_mtx); 1972 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1973 done = 1; 1974 break; 1975 default: 1976 mtx_unlock(¶ms.ioctl_mtx); 1977 /* XXX KDM error here? */ 1978 break; 1979 } 1980 } while (done == 0); 1981 1982 mtx_destroy(¶ms.ioctl_mtx); 1983 cv_destroy(¶ms.sem); 1984 1985 return (CTL_RETVAL_COMPLETE); 1986} 1987 1988static void 1989ctl_ioctl_datamove(union ctl_io *io) 1990{ 1991 struct ctl_fe_ioctl_params *params; 1992 1993 params = (struct ctl_fe_ioctl_params *) 1994 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1995 1996 mtx_lock(¶ms->ioctl_mtx); 1997 params->state = CTL_IOCTL_DATAMOVE; 1998 cv_broadcast(¶ms->sem); 1999 mtx_unlock(¶ms->ioctl_mtx); 2000} 2001 2002static void 2003ctl_ioctl_done(union ctl_io *io) 2004{ 2005 struct ctl_fe_ioctl_params *params; 2006 2007 params = (struct ctl_fe_ioctl_params *) 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2009 2010 mtx_lock(¶ms->ioctl_mtx); 2011 params->state = CTL_IOCTL_DONE; 2012 cv_broadcast(¶ms->sem); 2013 mtx_unlock(¶ms->ioctl_mtx); 2014} 2015 2016static void 2017ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2018{ 2019 struct ctl_fe_ioctl_startstop_info *sd_info; 2020 2021 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2022 2023 sd_info->hs_info.status = metatask->status; 2024 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2025 sd_info->hs_info.luns_complete = 2026 metatask->taskinfo.startstop.luns_complete; 2027 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2028 2029 cv_broadcast(&sd_info->sem); 2030} 2031 2032static void 2033ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2034{ 2035 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2036 2037 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2038 2039 mtx_lock(fe_bbr_info->lock); 2040 fe_bbr_info->bbr_info->status = metatask->status; 2041 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2042 fe_bbr_info->wakeup_done = 1; 2043 mtx_unlock(fe_bbr_info->lock); 2044 2045 cv_broadcast(&fe_bbr_info->sem); 2046} 2047 2048/* 2049 * Returns 0 for success, errno for failure. 2050 */ 2051static int 2052ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2053 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2054{ 2055 union ctl_io *io; 2056 int retval; 2057 2058 retval = 0; 2059 2060 mtx_lock(&lun->lun_lock); 2061 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2062 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2063 ooa_links)) { 2064 struct ctl_ooa_entry *entry; 2065 2066 /* 2067 * If we've got more than we can fit, just count the 2068 * remaining entries. 2069 */ 2070 if (*cur_fill_num >= ooa_hdr->alloc_num) 2071 continue; 2072 2073 entry = &kern_entries[*cur_fill_num]; 2074 2075 entry->tag_num = io->scsiio.tag_num; 2076 entry->lun_num = lun->lun; 2077#ifdef CTL_TIME_IO 2078 entry->start_bt = io->io_hdr.start_bt; 2079#endif 2080 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2081 entry->cdb_len = io->scsiio.cdb_len; 2082 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2090 2091 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2092 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2093 2094 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2095 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2096 } 2097 mtx_unlock(&lun->lun_lock); 2098 2099 return (retval); 2100} 2101 2102static void * 2103ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2104 size_t error_str_len) 2105{ 2106 void *kptr; 2107 2108 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2109 2110 if (copyin(user_addr, kptr, len) != 0) { 2111 snprintf(error_str, error_str_len, "Error copying %d bytes " 2112 "from user address %p to kernel address %p", len, 2113 user_addr, kptr); 2114 free(kptr, M_CTL); 2115 return (NULL); 2116 } 2117 2118 return (kptr); 2119} 2120 2121static void 2122ctl_free_args(int num_args, struct ctl_be_arg *args) 2123{ 2124 int i; 2125 2126 if (args == NULL) 2127 return; 2128 2129 for (i = 0; i < num_args; i++) { 2130 free(args[i].kname, M_CTL); 2131 free(args[i].kvalue, M_CTL); 2132 } 2133 2134 free(args, M_CTL); 2135} 2136 2137static struct ctl_be_arg * 2138ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2139 char *error_str, size_t error_str_len) 2140{ 2141 struct ctl_be_arg *args; 2142 int i; 2143 2144 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2145 error_str, error_str_len); 2146 2147 if (args == NULL) 2148 goto bailout; 2149 2150 for (i = 0; i < num_args; i++) { 2151 args[i].kname = NULL; 2152 args[i].kvalue = NULL; 2153 } 2154 2155 for (i = 0; i < num_args; i++) { 2156 uint8_t *tmpptr; 2157 2158 args[i].kname = ctl_copyin_alloc(args[i].name, 2159 args[i].namelen, error_str, error_str_len); 2160 if (args[i].kname == NULL) 2161 goto bailout; 2162 2163 if (args[i].kname[args[i].namelen - 1] != '\0') { 2164 snprintf(error_str, error_str_len, "Argument %d " 2165 "name is not NUL-terminated", i); 2166 goto bailout; 2167 } 2168 2169 if (args[i].flags & CTL_BEARG_RD) { 2170 tmpptr = ctl_copyin_alloc(args[i].value, 2171 args[i].vallen, error_str, error_str_len); 2172 if (tmpptr == NULL) 2173 goto bailout; 2174 if ((args[i].flags & CTL_BEARG_ASCII) 2175 && (tmpptr[args[i].vallen - 1] != '\0')) { 2176 snprintf(error_str, error_str_len, "Argument " 2177 "%d value is not NUL-terminated", i); 2178 goto bailout; 2179 } 2180 args[i].kvalue = tmpptr; 2181 } else { 2182 args[i].kvalue = malloc(args[i].vallen, 2183 M_CTL, M_WAITOK | M_ZERO); 2184 } 2185 } 2186 2187 return (args); 2188bailout: 2189 2190 ctl_free_args(num_args, args); 2191 2192 return (NULL); 2193} 2194 2195static void 2196ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2197{ 2198 int i; 2199 2200 for (i = 0; i < num_args; i++) { 2201 if (args[i].flags & CTL_BEARG_WR) 2202 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2203 } 2204} 2205 2206/* 2207 * Escape characters that are illegal or not recommended in XML. 2208 */ 2209int 2210ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2211{ 2212 int retval; 2213 2214 retval = 0; 2215 2216 for (; *str; str++) { 2217 switch (*str) { 2218 case '&': 2219 retval = sbuf_printf(sb, "&"); 2220 break; 2221 case '>': 2222 retval = sbuf_printf(sb, ">"); 2223 break; 2224 case '<': 2225 retval = sbuf_printf(sb, "<"); 2226 break; 2227 default: 2228 retval = sbuf_putc(sb, *str); 2229 break; 2230 } 2231 2232 if (retval != 0) 2233 break; 2234 2235 } 2236 2237 return (retval); 2238} 2239 2240static int 2241ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2242 struct thread *td) 2243{ 2244 struct ctl_softc *softc; 2245 int retval; 2246 2247 softc = control_softc; 2248 2249 retval = 0; 2250 2251 switch (cmd) { 2252 case CTL_IO: { 2253 union ctl_io *io; 2254 void *pool_tmp; 2255 2256 /* 2257 * If we haven't been "enabled", don't allow any SCSI I/O 2258 * to this FETD. 2259 */ 2260 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2261 retval = EPERM; 2262 break; 2263 } 2264 2265 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2266 if (io == NULL) { 2267 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2268 retval = ENOSPC; 2269 break; 2270 } 2271 2272 /* 2273 * Need to save the pool reference so it doesn't get 2274 * spammed by the user's ctl_io. 2275 */ 2276 pool_tmp = io->io_hdr.pool; 2277 2278 memcpy(io, (void *)addr, sizeof(*io)); 2279 2280 io->io_hdr.pool = pool_tmp; 2281 /* 2282 * No status yet, so make sure the status is set properly. 2283 */ 2284 io->io_hdr.status = CTL_STATUS_NONE; 2285 2286 /* 2287 * The user sets the initiator ID, target and LUN IDs. 2288 */ 2289 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2290 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2291 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2292 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2293 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2294 2295 retval = ctl_ioctl_submit_wait(io); 2296 2297 if (retval != 0) { 2298 ctl_free_io(io); 2299 break; 2300 } 2301 2302 memcpy((void *)addr, io, sizeof(*io)); 2303 2304 /* return this to our pool */ 2305 ctl_free_io(io); 2306 2307 break; 2308 } 2309 case CTL_ENABLE_PORT: 2310 case CTL_DISABLE_PORT: 2311 case CTL_SET_PORT_WWNS: { 2312 struct ctl_port *port; 2313 struct ctl_port_entry *entry; 2314 2315 entry = (struct ctl_port_entry *)addr; 2316 2317 mtx_lock(&softc->ctl_lock); 2318 STAILQ_FOREACH(port, &softc->port_list, links) { 2319 int action, done; 2320 2321 action = 0; 2322 done = 0; 2323 2324 if ((entry->port_type == CTL_PORT_NONE) 2325 && (entry->targ_port == port->targ_port)) { 2326 /* 2327 * If the user only wants to enable or 2328 * disable or set WWNs on a specific port, 2329 * do the operation and we're done. 2330 */ 2331 action = 1; 2332 done = 1; 2333 } else if (entry->port_type & port->port_type) { 2334 /* 2335 * Compare the user's type mask with the 2336 * particular frontend type to see if we 2337 * have a match. 2338 */ 2339 action = 1; 2340 done = 0; 2341 2342 /* 2343 * Make sure the user isn't trying to set 2344 * WWNs on multiple ports at the same time. 2345 */ 2346 if (cmd == CTL_SET_PORT_WWNS) { 2347 printf("%s: Can't set WWNs on " 2348 "multiple ports\n", __func__); 2349 retval = EINVAL; 2350 break; 2351 } 2352 } 2353 if (action != 0) { 2354 /* 2355 * XXX KDM we have to drop the lock here, 2356 * because the online/offline operations 2357 * can potentially block. We need to 2358 * reference count the frontends so they 2359 * can't go away, 2360 */ 2361 mtx_unlock(&softc->ctl_lock); 2362 2363 if (cmd == CTL_ENABLE_PORT) { 2364 struct ctl_lun *lun; 2365 2366 STAILQ_FOREACH(lun, &softc->lun_list, 2367 links) { 2368 port->lun_enable(port->targ_lun_arg, 2369 lun->target, 2370 lun->lun); 2371 } 2372 2373 ctl_port_online(port); 2374 } else if (cmd == CTL_DISABLE_PORT) { 2375 struct ctl_lun *lun; 2376 2377 ctl_port_offline(port); 2378 2379 STAILQ_FOREACH(lun, &softc->lun_list, 2380 links) { 2381 port->lun_disable( 2382 port->targ_lun_arg, 2383 lun->target, 2384 lun->lun); 2385 } 2386 } 2387 2388 mtx_lock(&softc->ctl_lock); 2389 2390 if (cmd == CTL_SET_PORT_WWNS) 2391 ctl_port_set_wwns(port, 2392 (entry->flags & CTL_PORT_WWNN_VALID) ? 2393 1 : 0, entry->wwnn, 2394 (entry->flags & CTL_PORT_WWPN_VALID) ? 2395 1 : 0, entry->wwpn); 2396 } 2397 if (done != 0) 2398 break; 2399 } 2400 mtx_unlock(&softc->ctl_lock); 2401 break; 2402 } 2403 case CTL_GET_PORT_LIST: { 2404 struct ctl_port *port; 2405 struct ctl_port_list *list; 2406 int i; 2407 2408 list = (struct ctl_port_list *)addr; 2409 2410 if (list->alloc_len != (list->alloc_num * 2411 sizeof(struct ctl_port_entry))) { 2412 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2413 "alloc_num %u * sizeof(struct ctl_port_entry) " 2414 "%zu\n", __func__, list->alloc_len, 2415 list->alloc_num, sizeof(struct ctl_port_entry)); 2416 retval = EINVAL; 2417 break; 2418 } 2419 list->fill_len = 0; 2420 list->fill_num = 0; 2421 list->dropped_num = 0; 2422 i = 0; 2423 mtx_lock(&softc->ctl_lock); 2424 STAILQ_FOREACH(port, &softc->port_list, links) { 2425 struct ctl_port_entry entry, *list_entry; 2426 2427 if (list->fill_num >= list->alloc_num) { 2428 list->dropped_num++; 2429 continue; 2430 } 2431 2432 entry.port_type = port->port_type; 2433 strlcpy(entry.port_name, port->port_name, 2434 sizeof(entry.port_name)); 2435 entry.targ_port = port->targ_port; 2436 entry.physical_port = port->physical_port; 2437 entry.virtual_port = port->virtual_port; 2438 entry.wwnn = port->wwnn; 2439 entry.wwpn = port->wwpn; 2440 if (port->status & CTL_PORT_STATUS_ONLINE) 2441 entry.online = 1; 2442 else 2443 entry.online = 0; 2444 2445 list_entry = &list->entries[i]; 2446 2447 retval = copyout(&entry, list_entry, sizeof(entry)); 2448 if (retval != 0) { 2449 printf("%s: CTL_GET_PORT_LIST: copyout " 2450 "returned %d\n", __func__, retval); 2451 break; 2452 } 2453 i++; 2454 list->fill_num++; 2455 list->fill_len += sizeof(entry); 2456 } 2457 mtx_unlock(&softc->ctl_lock); 2458 2459 /* 2460 * If this is non-zero, we had a copyout fault, so there's 2461 * probably no point in attempting to set the status inside 2462 * the structure. 2463 */ 2464 if (retval != 0) 2465 break; 2466 2467 if (list->dropped_num > 0) 2468 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2469 else 2470 list->status = CTL_PORT_LIST_OK; 2471 break; 2472 } 2473 case CTL_DUMP_OOA: { 2474 struct ctl_lun *lun; 2475 union ctl_io *io; 2476 char printbuf[128]; 2477 struct sbuf sb; 2478 2479 mtx_lock(&softc->ctl_lock); 2480 printf("Dumping OOA queues:\n"); 2481 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2482 mtx_lock(&lun->lun_lock); 2483 for (io = (union ctl_io *)TAILQ_FIRST( 2484 &lun->ooa_queue); io != NULL; 2485 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2486 ooa_links)) { 2487 sbuf_new(&sb, printbuf, sizeof(printbuf), 2488 SBUF_FIXEDLEN); 2489 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2490 (intmax_t)lun->lun, 2491 io->scsiio.tag_num, 2492 (io->io_hdr.flags & 2493 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_ABORT) ? " ABORT" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2500 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2501 sbuf_finish(&sb); 2502 printf("%s\n", sbuf_data(&sb)); 2503 } 2504 mtx_unlock(&lun->lun_lock); 2505 } 2506 printf("OOA queues dump done\n"); 2507 mtx_unlock(&softc->ctl_lock); 2508 break; 2509 } 2510 case CTL_GET_OOA: { 2511 struct ctl_lun *lun; 2512 struct ctl_ooa *ooa_hdr; 2513 struct ctl_ooa_entry *entries; 2514 uint32_t cur_fill_num; 2515 2516 ooa_hdr = (struct ctl_ooa *)addr; 2517 2518 if ((ooa_hdr->alloc_len == 0) 2519 || (ooa_hdr->alloc_num == 0)) { 2520 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2521 "must be non-zero\n", __func__, 2522 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2523 retval = EINVAL; 2524 break; 2525 } 2526 2527 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2528 sizeof(struct ctl_ooa_entry))) { 2529 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2530 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2531 __func__, ooa_hdr->alloc_len, 2532 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 2537 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2538 if (entries == NULL) { 2539 printf("%s: could not allocate %d bytes for OOA " 2540 "dump\n", __func__, ooa_hdr->alloc_len); 2541 retval = ENOMEM; 2542 break; 2543 } 2544 2545 mtx_lock(&softc->ctl_lock); 2546 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2547 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2548 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2549 mtx_unlock(&softc->ctl_lock); 2550 free(entries, M_CTL); 2551 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2552 __func__, (uintmax_t)ooa_hdr->lun_num); 2553 retval = EINVAL; 2554 break; 2555 } 2556 2557 cur_fill_num = 0; 2558 2559 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2560 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2561 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2562 ooa_hdr, entries); 2563 if (retval != 0) 2564 break; 2565 } 2566 if (retval != 0) { 2567 mtx_unlock(&softc->ctl_lock); 2568 free(entries, M_CTL); 2569 break; 2570 } 2571 } else { 2572 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2573 2574 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2575 entries); 2576 } 2577 mtx_unlock(&softc->ctl_lock); 2578 2579 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2580 ooa_hdr->fill_len = ooa_hdr->fill_num * 2581 sizeof(struct ctl_ooa_entry); 2582 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2583 if (retval != 0) { 2584 printf("%s: error copying out %d bytes for OOA dump\n", 2585 __func__, ooa_hdr->fill_len); 2586 } 2587 2588 getbintime(&ooa_hdr->cur_bt); 2589 2590 if (cur_fill_num > ooa_hdr->alloc_num) { 2591 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2592 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2593 } else { 2594 ooa_hdr->dropped_num = 0; 2595 ooa_hdr->status = CTL_OOA_OK; 2596 } 2597 2598 free(entries, M_CTL); 2599 break; 2600 } 2601 case CTL_CHECK_OOA: { 2602 union ctl_io *io; 2603 struct ctl_lun *lun; 2604 struct ctl_ooa_info *ooa_info; 2605 2606 2607 ooa_info = (struct ctl_ooa_info *)addr; 2608 2609 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2610 ooa_info->status = CTL_OOA_INVALID_LUN; 2611 break; 2612 } 2613 mtx_lock(&softc->ctl_lock); 2614 lun = softc->ctl_luns[ooa_info->lun_id]; 2615 if (lun == NULL) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ooa_info->status = CTL_OOA_INVALID_LUN; 2618 break; 2619 } 2620 mtx_lock(&lun->lun_lock); 2621 mtx_unlock(&softc->ctl_lock); 2622 ooa_info->num_entries = 0; 2623 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2624 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2625 &io->io_hdr, ooa_links)) { 2626 ooa_info->num_entries++; 2627 } 2628 mtx_unlock(&lun->lun_lock); 2629 2630 ooa_info->status = CTL_OOA_SUCCESS; 2631 2632 break; 2633 } 2634 case CTL_HARD_START: 2635 case CTL_HARD_STOP: { 2636 struct ctl_fe_ioctl_startstop_info ss_info; 2637 struct cfi_metatask *metatask; 2638 struct mtx hs_mtx; 2639 2640 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2641 2642 cv_init(&ss_info.sem, "hard start/stop cv" ); 2643 2644 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2645 if (metatask == NULL) { 2646 retval = ENOMEM; 2647 mtx_destroy(&hs_mtx); 2648 break; 2649 } 2650 2651 if (cmd == CTL_HARD_START) 2652 metatask->tasktype = CFI_TASK_STARTUP; 2653 else 2654 metatask->tasktype = CFI_TASK_SHUTDOWN; 2655 2656 metatask->callback = ctl_ioctl_hard_startstop_callback; 2657 metatask->callback_arg = &ss_info; 2658 2659 cfi_action(metatask); 2660 2661 /* Wait for the callback */ 2662 mtx_lock(&hs_mtx); 2663 cv_wait_sig(&ss_info.sem, &hs_mtx); 2664 mtx_unlock(&hs_mtx); 2665 2666 /* 2667 * All information has been copied from the metatask by the 2668 * time cv_broadcast() is called, so we free the metatask here. 2669 */ 2670 cfi_free_metatask(metatask); 2671 2672 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2673 2674 mtx_destroy(&hs_mtx); 2675 break; 2676 } 2677 case CTL_BBRREAD: { 2678 struct ctl_bbrread_info *bbr_info; 2679 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2680 struct mtx bbr_mtx; 2681 struct cfi_metatask *metatask; 2682 2683 bbr_info = (struct ctl_bbrread_info *)addr; 2684 2685 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2686 2687 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2688 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2689 2690 fe_bbr_info.bbr_info = bbr_info; 2691 fe_bbr_info.lock = &bbr_mtx; 2692 2693 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2694 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2695 2696 if (metatask == NULL) { 2697 mtx_destroy(&bbr_mtx); 2698 cv_destroy(&fe_bbr_info.sem); 2699 retval = ENOMEM; 2700 break; 2701 } 2702 metatask->tasktype = CFI_TASK_BBRREAD; 2703 metatask->callback = ctl_ioctl_bbrread_callback; 2704 metatask->callback_arg = &fe_bbr_info; 2705 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2706 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2707 metatask->taskinfo.bbrread.len = bbr_info->len; 2708 2709 cfi_action(metatask); 2710 2711 mtx_lock(&bbr_mtx); 2712 while (fe_bbr_info.wakeup_done == 0) 2713 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2714 mtx_unlock(&bbr_mtx); 2715 2716 bbr_info->status = metatask->status; 2717 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2718 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2719 memcpy(&bbr_info->sense_data, 2720 &metatask->taskinfo.bbrread.sense_data, 2721 ctl_min(sizeof(bbr_info->sense_data), 2722 sizeof(metatask->taskinfo.bbrread.sense_data))); 2723 2724 cfi_free_metatask(metatask); 2725 2726 mtx_destroy(&bbr_mtx); 2727 cv_destroy(&fe_bbr_info.sem); 2728 2729 break; 2730 } 2731 case CTL_DELAY_IO: { 2732 struct ctl_io_delay_info *delay_info; 2733#ifdef CTL_IO_DELAY 2734 struct ctl_lun *lun; 2735#endif /* CTL_IO_DELAY */ 2736 2737 delay_info = (struct ctl_io_delay_info *)addr; 2738 2739#ifdef CTL_IO_DELAY 2740 mtx_lock(&softc->ctl_lock); 2741 2742 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2743 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2744 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2745 } else { 2746 lun = softc->ctl_luns[delay_info->lun_id]; 2747 mtx_lock(&lun->lun_lock); 2748 2749 delay_info->status = CTL_DELAY_STATUS_OK; 2750 2751 switch (delay_info->delay_type) { 2752 case CTL_DELAY_TYPE_CONT: 2753 break; 2754 case CTL_DELAY_TYPE_ONESHOT: 2755 break; 2756 default: 2757 delay_info->status = 2758 CTL_DELAY_STATUS_INVALID_TYPE; 2759 break; 2760 } 2761 2762 switch (delay_info->delay_loc) { 2763 case CTL_DELAY_LOC_DATAMOVE: 2764 lun->delay_info.datamove_type = 2765 delay_info->delay_type; 2766 lun->delay_info.datamove_delay = 2767 delay_info->delay_secs; 2768 break; 2769 case CTL_DELAY_LOC_DONE: 2770 lun->delay_info.done_type = 2771 delay_info->delay_type; 2772 lun->delay_info.done_delay = 2773 delay_info->delay_secs; 2774 break; 2775 default: 2776 delay_info->status = 2777 CTL_DELAY_STATUS_INVALID_LOC; 2778 break; 2779 } 2780 mtx_unlock(&lun->lun_lock); 2781 } 2782 2783 mtx_unlock(&softc->ctl_lock); 2784#else 2785 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2786#endif /* CTL_IO_DELAY */ 2787 break; 2788 } 2789 case CTL_REALSYNC_SET: { 2790 int *syncstate; 2791 2792 syncstate = (int *)addr; 2793 2794 mtx_lock(&softc->ctl_lock); 2795 switch (*syncstate) { 2796 case 0: 2797 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2798 break; 2799 case 1: 2800 softc->flags |= CTL_FLAG_REAL_SYNC; 2801 break; 2802 default: 2803 retval = EINVAL; 2804 break; 2805 } 2806 mtx_unlock(&softc->ctl_lock); 2807 break; 2808 } 2809 case CTL_REALSYNC_GET: { 2810 int *syncstate; 2811 2812 syncstate = (int*)addr; 2813 2814 mtx_lock(&softc->ctl_lock); 2815 if (softc->flags & CTL_FLAG_REAL_SYNC) 2816 *syncstate = 1; 2817 else 2818 *syncstate = 0; 2819 mtx_unlock(&softc->ctl_lock); 2820 2821 break; 2822 } 2823 case CTL_SETSYNC: 2824 case CTL_GETSYNC: { 2825 struct ctl_sync_info *sync_info; 2826 struct ctl_lun *lun; 2827 2828 sync_info = (struct ctl_sync_info *)addr; 2829 2830 mtx_lock(&softc->ctl_lock); 2831 lun = softc->ctl_luns[sync_info->lun_id]; 2832 if (lun == NULL) { 2833 mtx_unlock(&softc->ctl_lock); 2834 sync_info->status = CTL_GS_SYNC_NO_LUN; 2835 } 2836 /* 2837 * Get or set the sync interval. We're not bounds checking 2838 * in the set case, hopefully the user won't do something 2839 * silly. 2840 */ 2841 mtx_lock(&lun->lun_lock); 2842 mtx_unlock(&softc->ctl_lock); 2843 if (cmd == CTL_GETSYNC) 2844 sync_info->sync_interval = lun->sync_interval; 2845 else 2846 lun->sync_interval = sync_info->sync_interval; 2847 mtx_unlock(&lun->lun_lock); 2848 2849 sync_info->status = CTL_GS_SYNC_OK; 2850 2851 break; 2852 } 2853 case CTL_GETSTATS: { 2854 struct ctl_stats *stats; 2855 struct ctl_lun *lun; 2856 int i; 2857 2858 stats = (struct ctl_stats *)addr; 2859 2860 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2861 stats->alloc_len) { 2862 stats->status = CTL_SS_NEED_MORE_SPACE; 2863 stats->num_luns = softc->num_luns; 2864 break; 2865 } 2866 /* 2867 * XXX KDM no locking here. If the LUN list changes, 2868 * things can blow up. 2869 */ 2870 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2871 i++, lun = STAILQ_NEXT(lun, links)) { 2872 retval = copyout(&lun->stats, &stats->lun_stats[i], 2873 sizeof(lun->stats)); 2874 if (retval != 0) 2875 break; 2876 } 2877 stats->num_luns = softc->num_luns; 2878 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2879 softc->num_luns; 2880 stats->status = CTL_SS_OK; 2881#ifdef CTL_TIME_IO 2882 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2883#else 2884 stats->flags = CTL_STATS_FLAG_NONE; 2885#endif 2886 getnanouptime(&stats->timestamp); 2887 break; 2888 } 2889 case CTL_ERROR_INJECT: { 2890 struct ctl_error_desc *err_desc, *new_err_desc; 2891 struct ctl_lun *lun; 2892 2893 err_desc = (struct ctl_error_desc *)addr; 2894 2895 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2896 M_WAITOK | M_ZERO); 2897 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2898 2899 mtx_lock(&softc->ctl_lock); 2900 lun = softc->ctl_luns[err_desc->lun_id]; 2901 if (lun == NULL) { 2902 mtx_unlock(&softc->ctl_lock); 2903 free(new_err_desc, M_CTL); 2904 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2905 __func__, (uintmax_t)err_desc->lun_id); 2906 retval = EINVAL; 2907 break; 2908 } 2909 mtx_lock(&lun->lun_lock); 2910 mtx_unlock(&softc->ctl_lock); 2911 2912 /* 2913 * We could do some checking here to verify the validity 2914 * of the request, but given the complexity of error 2915 * injection requests, the checking logic would be fairly 2916 * complex. 2917 * 2918 * For now, if the request is invalid, it just won't get 2919 * executed and might get deleted. 2920 */ 2921 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2922 2923 /* 2924 * XXX KDM check to make sure the serial number is unique, 2925 * in case we somehow manage to wrap. That shouldn't 2926 * happen for a very long time, but it's the right thing to 2927 * do. 2928 */ 2929 new_err_desc->serial = lun->error_serial; 2930 err_desc->serial = lun->error_serial; 2931 lun->error_serial++; 2932 2933 mtx_unlock(&lun->lun_lock); 2934 break; 2935 } 2936 case CTL_ERROR_INJECT_DELETE: { 2937 struct ctl_error_desc *delete_desc, *desc, *desc2; 2938 struct ctl_lun *lun; 2939 int delete_done; 2940 2941 delete_desc = (struct ctl_error_desc *)addr; 2942 delete_done = 0; 2943 2944 mtx_lock(&softc->ctl_lock); 2945 lun = softc->ctl_luns[delete_desc->lun_id]; 2946 if (lun == NULL) { 2947 mtx_unlock(&softc->ctl_lock); 2948 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2949 __func__, (uintmax_t)delete_desc->lun_id); 2950 retval = EINVAL; 2951 break; 2952 } 2953 mtx_lock(&lun->lun_lock); 2954 mtx_unlock(&softc->ctl_lock); 2955 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2956 if (desc->serial != delete_desc->serial) 2957 continue; 2958 2959 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2960 links); 2961 free(desc, M_CTL); 2962 delete_done = 1; 2963 } 2964 mtx_unlock(&lun->lun_lock); 2965 if (delete_done == 0) { 2966 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2967 "error serial %ju on LUN %u\n", __func__, 2968 delete_desc->serial, delete_desc->lun_id); 2969 retval = EINVAL; 2970 break; 2971 } 2972 break; 2973 } 2974 case CTL_DUMP_STRUCTS: { 2975 int i, j, k, idx; 2976 struct ctl_port *port; 2977 struct ctl_frontend *fe; 2978 2979 mtx_lock(&softc->ctl_lock); 2980 printf("CTL Persistent Reservation information start:\n"); 2981 for (i = 0; i < CTL_MAX_LUNS; i++) { 2982 struct ctl_lun *lun; 2983 2984 lun = softc->ctl_luns[i]; 2985 2986 if ((lun == NULL) 2987 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2988 continue; 2989 2990 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2991 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2992 idx = j * CTL_MAX_INIT_PER_PORT + k; 2993 if (lun->per_res[idx].registered == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)scsi_8btou64( 2998 lun->per_res[idx].res_key.key)); 2999 } 3000 } 3001 } 3002 printf("CTL Persistent Reservation information end\n"); 3003 printf("CTL Ports:\n"); 3004 STAILQ_FOREACH(port, &softc->port_list, links) { 3005 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3006 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3007 port->frontend->name, port->port_type, 3008 port->physical_port, port->virtual_port, 3009 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3010 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3011 if (port->wwpn_iid[j].in_use == 0 && 3012 port->wwpn_iid[j].wwpn == 0 && 3013 port->wwpn_iid[j].name == NULL) 3014 continue; 3015 3016 printf(" iid %u use %d WWPN %#jx '%s'\n", 3017 j, port->wwpn_iid[j].in_use, 3018 (uintmax_t)port->wwpn_iid[j].wwpn, 3019 port->wwpn_iid[j].name); 3020 } 3021 } 3022 printf("CTL Port information end\n"); 3023 mtx_unlock(&softc->ctl_lock); 3024 /* 3025 * XXX KDM calling this without a lock. We'd likely want 3026 * to drop the lock before calling the frontend's dump 3027 * routine anyway. 3028 */ 3029 printf("CTL Frontends:\n"); 3030 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3031 printf(" Frontend '%s'\n", fe->name); 3032 if (fe->fe_dump != NULL) 3033 fe->fe_dump(); 3034 } 3035 printf("CTL Frontend information end\n"); 3036 break; 3037 } 3038 case CTL_LUN_REQ: { 3039 struct ctl_lun_req *lun_req; 3040 struct ctl_backend_driver *backend; 3041 3042 lun_req = (struct ctl_lun_req *)addr; 3043 3044 backend = ctl_backend_find(lun_req->backend); 3045 if (backend == NULL) { 3046 lun_req->status = CTL_LUN_ERROR; 3047 snprintf(lun_req->error_str, 3048 sizeof(lun_req->error_str), 3049 "Backend \"%s\" not found.", 3050 lun_req->backend); 3051 break; 3052 } 3053 if (lun_req->num_be_args > 0) { 3054 lun_req->kern_be_args = ctl_copyin_args( 3055 lun_req->num_be_args, 3056 lun_req->be_args, 3057 lun_req->error_str, 3058 sizeof(lun_req->error_str)); 3059 if (lun_req->kern_be_args == NULL) { 3060 lun_req->status = CTL_LUN_ERROR; 3061 break; 3062 } 3063 } 3064 3065 retval = backend->ioctl(dev, cmd, addr, flag, td); 3066 3067 if (lun_req->num_be_args > 0) { 3068 ctl_copyout_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 ctl_free_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 } 3073 break; 3074 } 3075 case CTL_LUN_LIST: { 3076 struct sbuf *sb; 3077 struct ctl_lun *lun; 3078 struct ctl_lun_list *list; 3079 struct ctl_option *opt; 3080 3081 list = (struct ctl_lun_list *)addr; 3082 3083 /* 3084 * Allocate a fixed length sbuf here, based on the length 3085 * of the user's buffer. We could allocate an auto-extending 3086 * buffer, and then tell the user how much larger our 3087 * amount of data is than his buffer, but that presents 3088 * some problems: 3089 * 3090 * 1. The sbuf(9) routines use a blocking malloc, and so 3091 * we can't hold a lock while calling them with an 3092 * auto-extending buffer. 3093 * 3094 * 2. There is not currently a LUN reference counting 3095 * mechanism, outside of outstanding transactions on 3096 * the LUN's OOA queue. So a LUN could go away on us 3097 * while we're getting the LUN number, backend-specific 3098 * information, etc. Thus, given the way things 3099 * currently work, we need to hold the CTL lock while 3100 * grabbing LUN information. 3101 * 3102 * So, from the user's standpoint, the best thing to do is 3103 * allocate what he thinks is a reasonable buffer length, 3104 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3105 * double the buffer length and try again. (And repeat 3106 * that until he succeeds.) 3107 */ 3108 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3109 if (sb == NULL) { 3110 list->status = CTL_LUN_LIST_ERROR; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Unable to allocate %d bytes for LUN list", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_printf(sb, "<ctllunlist>\n"); 3118 3119 mtx_lock(&softc->ctl_lock); 3120 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3121 mtx_lock(&lun->lun_lock); 3122 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3123 (uintmax_t)lun->lun); 3124 3125 /* 3126 * Bail out as soon as we see that we've overfilled 3127 * the buffer. 3128 */ 3129 if (retval != 0) 3130 break; 3131 3132 retval = sbuf_printf(sb, "\t<backend_type>%s" 3133 "</backend_type>\n", 3134 (lun->backend == NULL) ? "none" : 3135 lun->backend->name); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3141 lun->be_lun->lun_type); 3142 3143 if (retval != 0) 3144 break; 3145 3146 if (lun->backend == NULL) { 3147 retval = sbuf_printf(sb, "</lun>\n"); 3148 if (retval != 0) 3149 break; 3150 continue; 3151 } 3152 3153 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3154 (lun->be_lun->maxlba > 0) ? 3155 lun->be_lun->maxlba + 1 : 0); 3156 3157 if (retval != 0) 3158 break; 3159 3160 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3161 lun->be_lun->blocksize); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = sbuf_printf(sb, "\t<serial_number>"); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = ctl_sbuf_printf_esc(sb, 3172 lun->be_lun->serial_num); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "</serial_number>\n"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "\t<device_id>"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3188 3189 if (retval != 0) 3190 break; 3191 3192 retval = sbuf_printf(sb, "</device_id>\n"); 3193 3194 if (retval != 0) 3195 break; 3196 3197 if (lun->backend->lun_info != NULL) { 3198 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3199 if (retval != 0) 3200 break; 3201 } 3202 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3203 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3204 opt->name, opt->value, opt->name); 3205 if (retval != 0) 3206 break; 3207 } 3208 3209 retval = sbuf_printf(sb, "</lun>\n"); 3210 3211 if (retval != 0) 3212 break; 3213 mtx_unlock(&lun->lun_lock); 3214 } 3215 if (lun != NULL) 3216 mtx_unlock(&lun->lun_lock); 3217 mtx_unlock(&softc->ctl_lock); 3218 3219 if ((retval != 0) 3220 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3221 retval = 0; 3222 sbuf_delete(sb); 3223 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3224 snprintf(list->error_str, sizeof(list->error_str), 3225 "Out of space, %d bytes is too small", 3226 list->alloc_len); 3227 break; 3228 } 3229 3230 sbuf_finish(sb); 3231 3232 retval = copyout(sbuf_data(sb), list->lun_xml, 3233 sbuf_len(sb) + 1); 3234 3235 list->fill_len = sbuf_len(sb) + 1; 3236 list->status = CTL_LUN_LIST_OK; 3237 sbuf_delete(sb); 3238 break; 3239 } 3240 case CTL_ISCSI: { 3241 struct ctl_iscsi *ci; 3242 struct ctl_frontend *fe; 3243 3244 ci = (struct ctl_iscsi *)addr; 3245 3246 fe = ctl_frontend_find("iscsi"); 3247 if (fe == NULL) { 3248 ci->status = CTL_ISCSI_ERROR; 3249 snprintf(ci->error_str, sizeof(ci->error_str), 3250 "Frontend \"iscsi\" not found."); 3251 break; 3252 } 3253 3254 retval = fe->ioctl(dev, cmd, addr, flag, td); 3255 break; 3256 } 3257 case CTL_PORT_REQ: { 3258 struct ctl_req *req; 3259 struct ctl_frontend *fe; 3260 3261 req = (struct ctl_req *)addr; 3262 3263 fe = ctl_frontend_find(req->driver); 3264 if (fe == NULL) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Frontend \"%s\" not found.", req->driver); 3268 break; 3269 } 3270 if (req->num_args > 0) { 3271 req->kern_args = ctl_copyin_args(req->num_args, 3272 req->args, req->error_str, sizeof(req->error_str)); 3273 if (req->kern_args == NULL) { 3274 req->status = CTL_LUN_ERROR; 3275 break; 3276 } 3277 } 3278 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 3281 if (req->num_args > 0) { 3282 ctl_copyout_args(req->num_args, req->kern_args); 3283 ctl_free_args(req->num_args, req->kern_args); 3284 } 3285 break; 3286 } 3287 case CTL_PORT_LIST: { 3288 struct sbuf *sb; 3289 struct ctl_port *port; 3290 struct ctl_lun_list *list; 3291 struct ctl_option *opt; 3292 3293 list = (struct ctl_lun_list *)addr; 3294 3295 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3296 if (sb == NULL) { 3297 list->status = CTL_LUN_LIST_ERROR; 3298 snprintf(list->error_str, sizeof(list->error_str), 3299 "Unable to allocate %d bytes for LUN list", 3300 list->alloc_len); 3301 break; 3302 } 3303 3304 sbuf_printf(sb, "<ctlportlist>\n"); 3305 3306 mtx_lock(&softc->ctl_lock); 3307 STAILQ_FOREACH(port, &softc->port_list, links) { 3308 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3309 (uintmax_t)port->targ_port); 3310 3311 /* 3312 * Bail out as soon as we see that we've overfilled 3313 * the buffer. 3314 */ 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3319 "</frontend_type>\n", port->frontend->name); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3324 port->port_type); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3329 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3334 port->port_name); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3339 port->physical_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3344 port->virtual_port); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3349 (uintmax_t)port->wwnn); 3350 if (retval != 0) 3351 break; 3352 3353 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3354 (uintmax_t)port->wwpn); 3355 if (retval != 0) 3356 break; 3357 3358 if (port->port_info != NULL) { 3359 retval = port->port_info(port->onoff_arg, sb); 3360 if (retval != 0) 3361 break; 3362 } 3363 STAILQ_FOREACH(opt, &port->options, links) { 3364 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3365 opt->name, opt->value, opt->name); 3366 if (retval != 0) 3367 break; 3368 } 3369 3370 retval = sbuf_printf(sb, "</targ_port>\n"); 3371 if (retval != 0) 3372 break; 3373 } 3374 mtx_unlock(&softc->ctl_lock); 3375 3376 if ((retval != 0) 3377 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3378 retval = 0; 3379 sbuf_delete(sb); 3380 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3381 snprintf(list->error_str, sizeof(list->error_str), 3382 "Out of space, %d bytes is too small", 3383 list->alloc_len); 3384 break; 3385 } 3386 3387 sbuf_finish(sb); 3388 3389 retval = copyout(sbuf_data(sb), list->lun_xml, 3390 sbuf_len(sb) + 1); 3391 3392 list->fill_len = sbuf_len(sb) + 1; 3393 list->status = CTL_LUN_LIST_OK; 3394 sbuf_delete(sb); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 if (nexus->targ_port < CTL_MAX_PORTS) 3438 return (nexus->initid.id + 3439 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3440 else 3441 return (nexus->initid.id + 3442 ((nexus->targ_port - CTL_MAX_PORTS) * 3443 CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446uint32_t 3447ctl_get_resindex(struct ctl_nexus *nexus) 3448{ 3449 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3450} 3451 3452uint32_t 3453ctl_port_idx(int port_num) 3454{ 3455 if (port_num < CTL_MAX_PORTS) 3456 return(port_num); 3457 else 3458 return(port_num - CTL_MAX_PORTS); 3459} 3460 3461static uint32_t 3462ctl_map_lun(int port_num, uint32_t lun_id) 3463{ 3464 struct ctl_port *port; 3465 3466 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3467 if (port == NULL) 3468 return (UINT32_MAX); 3469 if (port->lun_map == NULL) 3470 return (lun_id); 3471 return (port->lun_map(port->targ_lun_arg, lun_id)); 3472} 3473 3474static uint32_t 3475ctl_map_lun_back(int port_num, uint32_t lun_id) 3476{ 3477 struct ctl_port *port; 3478 uint32_t i; 3479 3480 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3481 if (port->lun_map == NULL) 3482 return (lun_id); 3483 for (i = 0; i < CTL_MAX_LUNS; i++) { 3484 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3485 return (i); 3486 } 3487 return (UINT32_MAX); 3488} 3489 3490/* 3491 * Note: This only works for bitmask sizes that are at least 32 bits, and 3492 * that are a power of 2. 3493 */ 3494int 3495ctl_ffz(uint32_t *mask, uint32_t size) 3496{ 3497 uint32_t num_chunks, num_pieces; 3498 int i, j; 3499 3500 num_chunks = (size >> 5); 3501 if (num_chunks == 0) 3502 num_chunks++; 3503 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3504 3505 for (i = 0; i < num_chunks; i++) { 3506 for (j = 0; j < num_pieces; j++) { 3507 if ((mask[i] & (1 << j)) == 0) 3508 return ((i << 5) + j); 3509 } 3510 } 3511 3512 return (-1); 3513} 3514 3515int 3516ctl_set_mask(uint32_t *mask, uint32_t bit) 3517{ 3518 uint32_t chunk, piece; 3519 3520 chunk = bit >> 5; 3521 piece = bit % (sizeof(uint32_t) * 8); 3522 3523 if ((mask[chunk] & (1 << piece)) != 0) 3524 return (-1); 3525 else 3526 mask[chunk] |= (1 << piece); 3527 3528 return (0); 3529} 3530 3531int 3532ctl_clear_mask(uint32_t *mask, uint32_t bit) 3533{ 3534 uint32_t chunk, piece; 3535 3536 chunk = bit >> 5; 3537 piece = bit % (sizeof(uint32_t) * 8); 3538 3539 if ((mask[chunk] & (1 << piece)) == 0) 3540 return (-1); 3541 else 3542 mask[chunk] &= ~(1 << piece); 3543 3544 return (0); 3545} 3546 3547int 3548ctl_is_set(uint32_t *mask, uint32_t bit) 3549{ 3550 uint32_t chunk, piece; 3551 3552 chunk = bit >> 5; 3553 piece = bit % (sizeof(uint32_t) * 8); 3554 3555 if ((mask[chunk] & (1 << piece)) == 0) 3556 return (0); 3557 else 3558 return (1); 3559} 3560 3561#ifdef unused 3562/* 3563 * The bus, target and lun are optional, they can be filled in later. 3564 * can_wait is used to determine whether we can wait on the malloc or not. 3565 */ 3566union ctl_io* 3567ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3568 uint32_t targ_lun, int can_wait) 3569{ 3570 union ctl_io *io; 3571 3572 if (can_wait) 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3574 else 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 3577 if (io != NULL) { 3578 io->io_hdr.io_type = io_type; 3579 io->io_hdr.targ_port = targ_port; 3580 /* 3581 * XXX KDM this needs to change/go away. We need to move 3582 * to a preallocated pool of ctl_scsiio structures. 3583 */ 3584 io->io_hdr.nexus.targ_target.id = targ_target; 3585 io->io_hdr.nexus.targ_lun = targ_lun; 3586 } 3587 3588 return (io); 3589} 3590 3591void 3592ctl_kfree_io(union ctl_io *io) 3593{ 3594 free(io, M_CTL); 3595} 3596#endif /* unused */ 3597 3598/* 3599 * ctl_softc, pool_type, total_ctl_io are passed in. 3600 * npool is passed out. 3601 */ 3602int 3603ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3604 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3605{ 3606 uint32_t i; 3607 union ctl_io *cur_io, *next_io; 3608 struct ctl_io_pool *pool; 3609 int retval; 3610 3611 retval = 0; 3612 3613 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3614 M_NOWAIT | M_ZERO); 3615 if (pool == NULL) { 3616 retval = ENOMEM; 3617 goto bailout; 3618 } 3619 3620 pool->type = pool_type; 3621 pool->ctl_softc = ctl_softc; 3622 3623 mtx_lock(&ctl_softc->pool_lock); 3624 pool->id = ctl_softc->cur_pool_id++; 3625 mtx_unlock(&ctl_softc->pool_lock); 3626 3627 pool->flags = CTL_POOL_FLAG_NONE; 3628 pool->refcount = 1; /* Reference for validity. */ 3629 STAILQ_INIT(&pool->free_queue); 3630 3631 /* 3632 * XXX KDM other options here: 3633 * - allocate a page at a time 3634 * - allocate one big chunk of memory. 3635 * Page allocation might work well, but would take a little more 3636 * tracking. 3637 */ 3638 for (i = 0; i < total_ctl_io; i++) { 3639 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3640 M_NOWAIT); 3641 if (cur_io == NULL) { 3642 retval = ENOMEM; 3643 break; 3644 } 3645 cur_io->io_hdr.pool = pool; 3646 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3647 pool->total_ctl_io++; 3648 pool->free_ctl_io++; 3649 } 3650 3651 if (retval != 0) { 3652 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3653 cur_io != NULL; cur_io = next_io) { 3654 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3655 links); 3656 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3657 ctl_io_hdr, links); 3658 free(cur_io, M_CTLIO); 3659 } 3660 3661 free(pool, M_CTL); 3662 goto bailout; 3663 } 3664 mtx_lock(&ctl_softc->pool_lock); 3665 ctl_softc->num_pools++; 3666 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3667 /* 3668 * Increment our usage count if this is an external consumer, so we 3669 * can't get unloaded until the external consumer (most likely a 3670 * FETD) unloads and frees his pool. 3671 * 3672 * XXX KDM will this increment the caller's module use count, or 3673 * mine? 3674 */ 3675#if 0 3676 if ((pool_type != CTL_POOL_EMERGENCY) 3677 && (pool_type != CTL_POOL_INTERNAL) 3678 && (pool_type != CTL_POOL_4OTHERSC)) 3679 MOD_INC_USE_COUNT; 3680#endif 3681 3682 mtx_unlock(&ctl_softc->pool_lock); 3683 3684 *npool = pool; 3685 3686bailout: 3687 3688 return (retval); 3689} 3690 3691static int 3692ctl_pool_acquire(struct ctl_io_pool *pool) 3693{ 3694 3695 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3696 3697 if (pool->flags & CTL_POOL_FLAG_INVALID) 3698 return (EINVAL); 3699 3700 pool->refcount++; 3701 3702 return (0); 3703} 3704 3705static void 3706ctl_pool_release(struct ctl_io_pool *pool) 3707{ 3708 struct ctl_softc *ctl_softc = pool->ctl_softc; 3709 union ctl_io *io; 3710 3711 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3712 3713 if (--pool->refcount != 0) 3714 return; 3715 3716 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3717 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3718 links); 3719 free(io, M_CTLIO); 3720 } 3721 3722 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3723 ctl_softc->num_pools--; 3724 3725 /* 3726 * XXX KDM will this decrement the caller's usage count or mine? 3727 */ 3728#if 0 3729 if ((pool->type != CTL_POOL_EMERGENCY) 3730 && (pool->type != CTL_POOL_INTERNAL) 3731 && (pool->type != CTL_POOL_4OTHERSC)) 3732 MOD_DEC_USE_COUNT; 3733#endif 3734 3735 free(pool, M_CTL); 3736} 3737 3738void 3739ctl_pool_free(struct ctl_io_pool *pool) 3740{ 3741 struct ctl_softc *ctl_softc; 3742 3743 if (pool == NULL) 3744 return; 3745 3746 ctl_softc = pool->ctl_softc; 3747 mtx_lock(&ctl_softc->pool_lock); 3748 pool->flags |= CTL_POOL_FLAG_INVALID; 3749 ctl_pool_release(pool); 3750 mtx_unlock(&ctl_softc->pool_lock); 3751} 3752 3753/* 3754 * This routine does not block (except for spinlocks of course). 3755 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3756 * possible. 3757 */ 3758union ctl_io * 3759ctl_alloc_io(void *pool_ref) 3760{ 3761 union ctl_io *io; 3762 struct ctl_softc *ctl_softc; 3763 struct ctl_io_pool *pool, *npool; 3764 struct ctl_io_pool *emergency_pool; 3765 3766 pool = (struct ctl_io_pool *)pool_ref; 3767 3768 if (pool == NULL) { 3769 printf("%s: pool is NULL\n", __func__); 3770 return (NULL); 3771 } 3772 3773 emergency_pool = NULL; 3774 3775 ctl_softc = pool->ctl_softc; 3776 3777 mtx_lock(&ctl_softc->pool_lock); 3778 /* 3779 * First, try to get the io structure from the user's pool. 3780 */ 3781 if (ctl_pool_acquire(pool) == 0) { 3782 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3783 if (io != NULL) { 3784 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3785 pool->total_allocated++; 3786 pool->free_ctl_io--; 3787 mtx_unlock(&ctl_softc->pool_lock); 3788 return (io); 3789 } else 3790 ctl_pool_release(pool); 3791 } 3792 /* 3793 * If he doesn't have any io structures left, search for an 3794 * emergency pool and grab one from there. 3795 */ 3796 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3797 if (npool->type != CTL_POOL_EMERGENCY) 3798 continue; 3799 3800 if (ctl_pool_acquire(npool) != 0) 3801 continue; 3802 3803 emergency_pool = npool; 3804 3805 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3806 if (io != NULL) { 3807 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3808 npool->total_allocated++; 3809 npool->free_ctl_io--; 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 return (io); 3812 } else 3813 ctl_pool_release(npool); 3814 } 3815 3816 /* Drop the spinlock before we malloc */ 3817 mtx_unlock(&ctl_softc->pool_lock); 3818 3819 /* 3820 * The emergency pool (if it exists) didn't have one, so try an 3821 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3822 */ 3823 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3824 if (io != NULL) { 3825 /* 3826 * If the emergency pool exists but is empty, add this 3827 * ctl_io to its list when it gets freed. 3828 */ 3829 if (emergency_pool != NULL) { 3830 mtx_lock(&ctl_softc->pool_lock); 3831 if (ctl_pool_acquire(emergency_pool) == 0) { 3832 io->io_hdr.pool = emergency_pool; 3833 emergency_pool->total_ctl_io++; 3834 /* 3835 * Need to bump this, otherwise 3836 * total_allocated and total_freed won't 3837 * match when we no longer have anything 3838 * outstanding. 3839 */ 3840 emergency_pool->total_allocated++; 3841 } 3842 mtx_unlock(&ctl_softc->pool_lock); 3843 } else 3844 io->io_hdr.pool = NULL; 3845 } 3846 3847 return (io); 3848} 3849 3850void 3851ctl_free_io(union ctl_io *io) 3852{ 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * If this ctl_io has a pool, return it to that pool. 3858 */ 3859 if (io->io_hdr.pool != NULL) { 3860 struct ctl_io_pool *pool; 3861 3862 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3863 mtx_lock(&pool->ctl_softc->pool_lock); 3864 io->io_hdr.io_type = 0xff; 3865 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3866 pool->total_freed++; 3867 pool->free_ctl_io++; 3868 ctl_pool_release(pool); 3869 mtx_unlock(&pool->ctl_softc->pool_lock); 3870 } else { 3871 /* 3872 * Otherwise, just free it. We probably malloced it and 3873 * the emergency pool wasn't available. 3874 */ 3875 free(io, M_CTLIO); 3876 } 3877 3878} 3879 3880void 3881ctl_zero_io(union ctl_io *io) 3882{ 3883 void *pool_ref; 3884 3885 if (io == NULL) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = io->io_hdr.pool; 3892 3893 memset(io, 0, sizeof(*io)); 3894 3895 io->io_hdr.pool = pool_ref; 3896} 3897 3898/* 3899 * This routine is currently used for internal copies of ctl_ios that need 3900 * to persist for some reason after we've already returned status to the 3901 * FETD. (Thus the flag set.) 3902 * 3903 * XXX XXX 3904 * Note that this makes a blind copy of all fields in the ctl_io, except 3905 * for the pool reference. This includes any memory that has been 3906 * allocated! That memory will no longer be valid after done has been 3907 * called, so this would be VERY DANGEROUS for command that actually does 3908 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3909 * start and stop commands, which don't transfer any data, so this is not a 3910 * problem. If it is used for anything else, the caller would also need to 3911 * allocate data buffer space and this routine would need to be modified to 3912 * copy the data buffer(s) as well. 3913 */ 3914void 3915ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3916{ 3917 void *pool_ref; 3918 3919 if ((src == NULL) 3920 || (dest == NULL)) 3921 return; 3922 3923 /* 3924 * May need to preserve linked list pointers at some point too. 3925 */ 3926 pool_ref = dest->io_hdr.pool; 3927 3928 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3929 3930 dest->io_hdr.pool = pool_ref; 3931 /* 3932 * We need to know that this is an internal copy, and doesn't need 3933 * to get passed back to the FETD that allocated it. 3934 */ 3935 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3936} 3937 3938#ifdef NEEDTOPORT 3939static void 3940ctl_update_power_subpage(struct copan_power_subpage *page) 3941{ 3942 int num_luns, num_partitions, config_type; 3943 struct ctl_softc *softc; 3944 cs_BOOL_t aor_present, shelf_50pct_power; 3945 cs_raidset_personality_t rs_type; 3946 int max_active_luns; 3947 3948 softc = control_softc; 3949 3950 /* subtract out the processor LUN */ 3951 num_luns = softc->num_luns - 1; 3952 /* 3953 * Default to 7 LUNs active, which was the only number we allowed 3954 * in the past. 3955 */ 3956 max_active_luns = 7; 3957 3958 num_partitions = config_GetRsPartitionInfo(); 3959 config_type = config_GetConfigType(); 3960 shelf_50pct_power = config_GetShelfPowerMode(); 3961 aor_present = config_IsAorRsPresent(); 3962 3963 rs_type = ddb_GetRsRaidType(1); 3964 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3965 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3966 EPRINT(0, "Unsupported RS type %d!", rs_type); 3967 } 3968 3969 3970 page->total_luns = num_luns; 3971 3972 switch (config_type) { 3973 case 40: 3974 /* 3975 * In a 40 drive configuration, it doesn't matter what DC 3976 * cards we have, whether we have AOR enabled or not, 3977 * partitioning or not, or what type of RAIDset we have. 3978 * In that scenario, we can power up every LUN we present 3979 * to the user. 3980 */ 3981 max_active_luns = num_luns; 3982 3983 break; 3984 case 64: 3985 if (shelf_50pct_power == CS_FALSE) { 3986 /* 25% power */ 3987 if (aor_present == CS_TRUE) { 3988 if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID5) { 3990 max_active_luns = 7; 3991 } else if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID1){ 3993 max_active_luns = 14; 3994 } else { 3995 /* XXX KDM now what?? */ 3996 } 3997 } else { 3998 if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID5) { 4000 max_active_luns = 8; 4001 } else if (rs_type == 4002 CS_RAIDSET_PERSONALITY_RAID1){ 4003 max_active_luns = 16; 4004 } else { 4005 /* XXX KDM now what?? */ 4006 } 4007 } 4008 } else { 4009 /* 50% power */ 4010 /* 4011 * With 50% power in a 64 drive configuration, we 4012 * can power all LUNs we present. 4013 */ 4014 max_active_luns = num_luns; 4015 } 4016 break; 4017 case 112: 4018 if (shelf_50pct_power == CS_FALSE) { 4019 /* 25% power */ 4020 if (aor_present == CS_TRUE) { 4021 if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID5) { 4023 max_active_luns = 7; 4024 } else if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID1){ 4026 max_active_luns = 14; 4027 } else { 4028 /* XXX KDM now what?? */ 4029 } 4030 } else { 4031 if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID5) { 4033 max_active_luns = 8; 4034 } else if (rs_type == 4035 CS_RAIDSET_PERSONALITY_RAID1){ 4036 max_active_luns = 16; 4037 } else { 4038 /* XXX KDM now what?? */ 4039 } 4040 } 4041 } else { 4042 /* 50% power */ 4043 if (aor_present == CS_TRUE) { 4044 if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID5) { 4046 max_active_luns = 14; 4047 } else if (rs_type == 4048 CS_RAIDSET_PERSONALITY_RAID1){ 4049 /* 4050 * We're assuming here that disk 4051 * caching is enabled, and so we're 4052 * able to power up half of each 4053 * LUN, and cache all writes. 4054 */ 4055 max_active_luns = num_luns; 4056 } else { 4057 /* XXX KDM now what?? */ 4058 } 4059 } else { 4060 if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID5) { 4062 max_active_luns = 15; 4063 } else if (rs_type == 4064 CS_RAIDSET_PERSONALITY_RAID1){ 4065 max_active_luns = 30; 4066 } else { 4067 /* XXX KDM now what?? */ 4068 } 4069 } 4070 } 4071 break; 4072 default: 4073 /* 4074 * In this case, we have an unknown configuration, so we 4075 * just use the default from above. 4076 */ 4077 break; 4078 } 4079 4080 page->max_active_luns = max_active_luns; 4081#if 0 4082 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4083 page->total_luns, page->max_active_luns); 4084#endif 4085} 4086#endif /* NEEDTOPORT */ 4087 4088/* 4089 * This routine could be used in the future to load default and/or saved 4090 * mode page parameters for a particuar lun. 4091 */ 4092static int 4093ctl_init_page_index(struct ctl_lun *lun) 4094{ 4095 int i; 4096 struct ctl_page_index *page_index; 4097 struct ctl_softc *softc; 4098 const char *value; 4099 4100 memcpy(&lun->mode_pages.index, page_index_template, 4101 sizeof(page_index_template)); 4102 4103 softc = lun->ctl_softc; 4104 4105 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4106 4107 page_index = &lun->mode_pages.index[i]; 4108 /* 4109 * If this is a disk-only mode page, there's no point in 4110 * setting it up. For some pages, we have to have some 4111 * basic information about the disk in order to calculate the 4112 * mode page data. 4113 */ 4114 if ((lun->be_lun->lun_type != T_DIRECT) 4115 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4116 continue; 4117 4118 switch (page_index->page_code & SMPH_PC_MASK) { 4119 case SMS_FORMAT_DEVICE_PAGE: { 4120 struct scsi_format_page *format_page; 4121 4122 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4123 panic("subpage is incorrect!"); 4124 4125 /* 4126 * Sectors per track are set above. Bytes per 4127 * sector need to be set here on a per-LUN basis. 4128 */ 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[ 4133 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4134 sizeof(format_page_changeable)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4139 &format_page_default, 4140 sizeof(format_page_default)); 4141 4142 format_page = &lun->mode_pages.format_page[ 4143 CTL_PAGE_CURRENT]; 4144 scsi_ulto2b(lun->be_lun->blocksize, 4145 format_page->bytes_per_sector); 4146 4147 format_page = &lun->mode_pages.format_page[ 4148 CTL_PAGE_DEFAULT]; 4149 scsi_ulto2b(lun->be_lun->blocksize, 4150 format_page->bytes_per_sector); 4151 4152 format_page = &lun->mode_pages.format_page[ 4153 CTL_PAGE_SAVED]; 4154 scsi_ulto2b(lun->be_lun->blocksize, 4155 format_page->bytes_per_sector); 4156 4157 page_index->page_data = 4158 (uint8_t *)lun->mode_pages.format_page; 4159 break; 4160 } 4161 case SMS_RIGID_DISK_PAGE: { 4162 struct scsi_rigid_disk_page *rigid_disk_page; 4163 uint32_t sectors_per_cylinder; 4164 uint64_t cylinders; 4165#ifndef __XSCALE__ 4166 int shift; 4167#endif /* !__XSCALE__ */ 4168 4169 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4170 panic("invalid subpage value %d", 4171 page_index->subpage); 4172 4173 /* 4174 * Rotation rate and sectors per track are set 4175 * above. We calculate the cylinders here based on 4176 * capacity. Due to the number of heads and 4177 * sectors per track we're using, smaller arrays 4178 * may turn out to have 0 cylinders. Linux and 4179 * FreeBSD don't pay attention to these mode pages 4180 * to figure out capacity, but Solaris does. It 4181 * seems to deal with 0 cylinders just fine, and 4182 * works out a fake geometry based on the capacity. 4183 */ 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4189 sizeof(rigid_disk_page_changeable)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 memcpy(&lun->mode_pages.rigid_disk_page[ 4194 CTL_PAGE_SAVED], &rigid_disk_page_default, 4195 sizeof(rigid_disk_page_default)); 4196 4197 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4198 CTL_DEFAULT_HEADS; 4199 4200 /* 4201 * The divide method here will be more accurate, 4202 * probably, but results in floating point being 4203 * used in the kernel on i386 (__udivdi3()). On the 4204 * XScale, though, __udivdi3() is implemented in 4205 * software. 4206 * 4207 * The shift method for cylinder calculation is 4208 * accurate if sectors_per_cylinder is a power of 4209 * 2. Otherwise it might be slightly off -- you 4210 * might have a bit of a truncation problem. 4211 */ 4212#ifdef __XSCALE__ 4213 cylinders = (lun->be_lun->maxlba + 1) / 4214 sectors_per_cylinder; 4215#else 4216 for (shift = 31; shift > 0; shift--) { 4217 if (sectors_per_cylinder & (1 << shift)) 4218 break; 4219 } 4220 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4221#endif 4222 4223 /* 4224 * We've basically got 3 bytes, or 24 bits for the 4225 * cylinder size in the mode page. If we're over, 4226 * just round down to 2^24. 4227 */ 4228 if (cylinders > 0xffffff) 4229 cylinders = 0xffffff; 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_CURRENT]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4236 CTL_PAGE_DEFAULT]; 4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4238 4239 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4240 CTL_PAGE_SAVED]; 4241 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4242 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.rigid_disk_page; 4245 break; 4246 } 4247 case SMS_CACHING_PAGE: { 4248 struct scsi_caching_page *caching_page; 4249 4250 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4251 panic("invalid subpage value %d", 4252 page_index->subpage); 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 caching_page = &lun->mode_pages.caching_page[ 4263 CTL_PAGE_SAVED]; 4264 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4265 if (value != NULL && strcmp(value, "off") == 0) 4266 caching_page->flags1 &= ~SCP_WCE; 4267 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4268 if (value != NULL && strcmp(value, "off") == 0) 4269 caching_page->flags1 |= SCP_RCD; 4270 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4272 sizeof(caching_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.caching_page; 4275 break; 4276 } 4277 case SMS_CONTROL_MODE_PAGE: { 4278 struct scsi_control_page *control_page; 4279 4280 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4281 panic("invalid subpage value %d", 4282 page_index->subpage); 4283 4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4285 &control_page_default, 4286 sizeof(control_page_default)); 4287 memcpy(&lun->mode_pages.control_page[ 4288 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4289 sizeof(control_page_changeable)); 4290 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4291 &control_page_default, 4292 sizeof(control_page_default)); 4293 control_page = &lun->mode_pages.control_page[ 4294 CTL_PAGE_SAVED]; 4295 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4296 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4297 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4298 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4299 } 4300 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4301 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4302 sizeof(control_page_default)); 4303 page_index->page_data = 4304 (uint8_t *)lun->mode_pages.control_page; 4305 break; 4306 4307 } 4308 case SMS_VENDOR_SPECIFIC_PAGE:{ 4309 switch (page_index->subpage) { 4310 case PWR_SUBPAGE_CODE: { 4311 struct copan_power_subpage *current_page, 4312 *saved_page; 4313 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_CURRENT], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 memcpy(&lun->mode_pages.power_subpage[ 4319 CTL_PAGE_CHANGEABLE], 4320 &power_page_changeable, 4321 sizeof(power_page_changeable)); 4322 memcpy(&lun->mode_pages.power_subpage[ 4323 CTL_PAGE_DEFAULT], 4324 &power_page_default, 4325 sizeof(power_page_default)); 4326 memcpy(&lun->mode_pages.power_subpage[ 4327 CTL_PAGE_SAVED], 4328 &power_page_default, 4329 sizeof(power_page_default)); 4330 page_index->page_data = 4331 (uint8_t *)lun->mode_pages.power_subpage; 4332 4333 current_page = (struct copan_power_subpage *) 4334 (page_index->page_data + 4335 (page_index->page_len * 4336 CTL_PAGE_CURRENT)); 4337 saved_page = (struct copan_power_subpage *) 4338 (page_index->page_data + 4339 (page_index->page_len * 4340 CTL_PAGE_SAVED)); 4341 break; 4342 } 4343 case APS_SUBPAGE_CODE: { 4344 struct copan_aps_subpage *current_page, 4345 *saved_page; 4346 4347 // This gets set multiple times but 4348 // it should always be the same. It's 4349 // only done during init so who cares. 4350 index_to_aps_page = i; 4351 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_CURRENT], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 memcpy(&lun->mode_pages.aps_subpage[ 4357 CTL_PAGE_CHANGEABLE], 4358 &aps_page_changeable, 4359 sizeof(aps_page_changeable)); 4360 memcpy(&lun->mode_pages.aps_subpage[ 4361 CTL_PAGE_DEFAULT], 4362 &aps_page_default, 4363 sizeof(aps_page_default)); 4364 memcpy(&lun->mode_pages.aps_subpage[ 4365 CTL_PAGE_SAVED], 4366 &aps_page_default, 4367 sizeof(aps_page_default)); 4368 page_index->page_data = 4369 (uint8_t *)lun->mode_pages.aps_subpage; 4370 4371 current_page = (struct copan_aps_subpage *) 4372 (page_index->page_data + 4373 (page_index->page_len * 4374 CTL_PAGE_CURRENT)); 4375 saved_page = (struct copan_aps_subpage *) 4376 (page_index->page_data + 4377 (page_index->page_len * 4378 CTL_PAGE_SAVED)); 4379 break; 4380 } 4381 case DBGCNF_SUBPAGE_CODE: { 4382 struct copan_debugconf_subpage *current_page, 4383 *saved_page; 4384 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_CURRENT], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 memcpy(&lun->mode_pages.debugconf_subpage[ 4390 CTL_PAGE_CHANGEABLE], 4391 &debugconf_page_changeable, 4392 sizeof(debugconf_page_changeable)); 4393 memcpy(&lun->mode_pages.debugconf_subpage[ 4394 CTL_PAGE_DEFAULT], 4395 &debugconf_page_default, 4396 sizeof(debugconf_page_default)); 4397 memcpy(&lun->mode_pages.debugconf_subpage[ 4398 CTL_PAGE_SAVED], 4399 &debugconf_page_default, 4400 sizeof(debugconf_page_default)); 4401 page_index->page_data = 4402 (uint8_t *)lun->mode_pages.debugconf_subpage; 4403 4404 current_page = (struct copan_debugconf_subpage *) 4405 (page_index->page_data + 4406 (page_index->page_len * 4407 CTL_PAGE_CURRENT)); 4408 saved_page = (struct copan_debugconf_subpage *) 4409 (page_index->page_data + 4410 (page_index->page_len * 4411 CTL_PAGE_SAVED)); 4412 break; 4413 } 4414 default: 4415 panic("invalid subpage value %d", 4416 page_index->subpage); 4417 break; 4418 } 4419 break; 4420 } 4421 default: 4422 panic("invalid page value %d", 4423 page_index->page_code & SMPH_PC_MASK); 4424 break; 4425 } 4426 } 4427 4428 return (CTL_RETVAL_COMPLETE); 4429} 4430 4431/* 4432 * LUN allocation. 4433 * 4434 * Requirements: 4435 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4436 * wants us to allocate the LUN and he can block. 4437 * - ctl_softc is always set 4438 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4439 * 4440 * Returns 0 for success, non-zero (errno) for failure. 4441 */ 4442static int 4443ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4444 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4445{ 4446 struct ctl_lun *nlun, *lun; 4447 struct ctl_port *port; 4448 struct scsi_vpd_id_descriptor *desc; 4449 struct scsi_vpd_id_t10 *t10id; 4450 const char *eui, *naa, *scsiname, *vendor; 4451 int lun_number, i, lun_malloced; 4452 int devidlen, idlen1, idlen2 = 0, len; 4453 4454 if (be_lun == NULL) 4455 return (EINVAL); 4456 4457 /* 4458 * We currently only support Direct Access or Processor LUN types. 4459 */ 4460 switch (be_lun->lun_type) { 4461 case T_DIRECT: 4462 break; 4463 case T_PROCESSOR: 4464 break; 4465 case T_SEQUENTIAL: 4466 case T_CHANGER: 4467 default: 4468 be_lun->lun_config_status(be_lun->be_lun, 4469 CTL_LUN_CONFIG_FAILURE); 4470 break; 4471 } 4472 if (ctl_lun == NULL) { 4473 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4474 lun_malloced = 1; 4475 } else { 4476 lun_malloced = 0; 4477 lun = ctl_lun; 4478 } 4479 4480 memset(lun, 0, sizeof(*lun)); 4481 if (lun_malloced) 4482 lun->flags = CTL_LUN_MALLOCED; 4483 4484 /* Generate LUN ID. */ 4485 devidlen = max(CTL_DEVID_MIN_LEN, 4486 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4487 idlen1 = sizeof(*t10id) + devidlen; 4488 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4489 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4490 if (scsiname != NULL) { 4491 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4492 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4493 } 4494 eui = ctl_get_opt(&be_lun->options, "eui"); 4495 if (eui != NULL) { 4496 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4497 } 4498 naa = ctl_get_opt(&be_lun->options, "naa"); 4499 if (naa != NULL) { 4500 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4501 } 4502 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4503 M_CTL, M_WAITOK | M_ZERO); 4504 lun->lun_devid->len = len; 4505 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4506 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4507 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4508 desc->length = idlen1; 4509 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4510 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4511 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4512 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4513 } else { 4514 strncpy(t10id->vendor, vendor, 4515 min(sizeof(t10id->vendor), strlen(vendor))); 4516 } 4517 strncpy((char *)t10id->vendor_spec_id, 4518 (char *)be_lun->device_id, devidlen); 4519 if (scsiname != NULL) { 4520 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4521 desc->length); 4522 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4523 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4524 SVPD_ID_TYPE_SCSI_NAME; 4525 desc->length = idlen2; 4526 strlcpy(desc->identifier, scsiname, idlen2); 4527 } 4528 if (eui != NULL) { 4529 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4530 desc->length); 4531 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4532 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4533 SVPD_ID_TYPE_EUI64; 4534 desc->length = 8; 4535 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4536 } 4537 if (naa != NULL) { 4538 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4539 desc->length); 4540 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4541 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4542 SVPD_ID_TYPE_NAA; 4543 desc->length = 8; 4544 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4545 } 4546 4547 mtx_lock(&ctl_softc->ctl_lock); 4548 /* 4549 * See if the caller requested a particular LUN number. If so, see 4550 * if it is available. Otherwise, allocate the first available LUN. 4551 */ 4552 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4553 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4554 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4555 mtx_unlock(&ctl_softc->ctl_lock); 4556 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4557 printf("ctl: requested LUN ID %d is higher " 4558 "than CTL_MAX_LUNS - 1 (%d)\n", 4559 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4560 } else { 4561 /* 4562 * XXX KDM return an error, or just assign 4563 * another LUN ID in this case?? 4564 */ 4565 printf("ctl: requested LUN ID %d is already " 4566 "in use\n", be_lun->req_lun_id); 4567 } 4568 if (lun->flags & CTL_LUN_MALLOCED) 4569 free(lun, M_CTL); 4570 be_lun->lun_config_status(be_lun->be_lun, 4571 CTL_LUN_CONFIG_FAILURE); 4572 return (ENOSPC); 4573 } 4574 lun_number = be_lun->req_lun_id; 4575 } else { 4576 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4577 if (lun_number == -1) { 4578 mtx_unlock(&ctl_softc->ctl_lock); 4579 printf("ctl: can't allocate LUN on target %ju, out of " 4580 "LUNs\n", (uintmax_t)target_id.id); 4581 if (lun->flags & CTL_LUN_MALLOCED) 4582 free(lun, M_CTL); 4583 be_lun->lun_config_status(be_lun->be_lun, 4584 CTL_LUN_CONFIG_FAILURE); 4585 return (ENOSPC); 4586 } 4587 } 4588 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4589 4590 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4591 lun->target = target_id; 4592 lun->lun = lun_number; 4593 lun->be_lun = be_lun; 4594 /* 4595 * The processor LUN is always enabled. Disk LUNs come on line 4596 * disabled, and must be enabled by the backend. 4597 */ 4598 lun->flags |= CTL_LUN_DISABLED; 4599 lun->backend = be_lun->be; 4600 be_lun->ctl_lun = lun; 4601 be_lun->lun_id = lun_number; 4602 atomic_add_int(&be_lun->be->num_luns, 1); 4603 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4604 lun->flags |= CTL_LUN_STOPPED; 4605 4606 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4607 lun->flags |= CTL_LUN_INOPERABLE; 4608 4609 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4610 lun->flags |= CTL_LUN_PRIMARY_SC; 4611 4612 lun->ctl_softc = ctl_softc; 4613 TAILQ_INIT(&lun->ooa_queue); 4614 TAILQ_INIT(&lun->blocked_queue); 4615 STAILQ_INIT(&lun->error_list); 4616 ctl_tpc_lun_init(lun); 4617 4618 /* 4619 * Initialize the mode page index. 4620 */ 4621 ctl_init_page_index(lun); 4622 4623 /* 4624 * Set the poweron UA for all initiators on this LUN only. 4625 */ 4626 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4627 lun->pending_ua[i] = CTL_UA_POWERON; 4628 4629 /* 4630 * Now, before we insert this lun on the lun list, set the lun 4631 * inventory changed UA for all other luns. 4632 */ 4633 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4634 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4635 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4636 } 4637 } 4638 4639 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4640 4641 ctl_softc->ctl_luns[lun_number] = lun; 4642 4643 ctl_softc->num_luns++; 4644 4645 /* Setup statistics gathering */ 4646 lun->stats.device_type = be_lun->lun_type; 4647 lun->stats.lun_number = lun_number; 4648 if (lun->stats.device_type == T_DIRECT) 4649 lun->stats.blocksize = be_lun->blocksize; 4650 else 4651 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4652 for (i = 0;i < CTL_MAX_PORTS;i++) 4653 lun->stats.ports[i].targ_port = i; 4654 4655 mtx_unlock(&ctl_softc->ctl_lock); 4656 4657 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4658 4659 /* 4660 * Run through each registered FETD and bring it online if it isn't 4661 * already. Enable the target ID if it hasn't been enabled, and 4662 * enable this particular LUN. 4663 */ 4664 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4665 int retval; 4666 4667 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4668 if (retval != 0) { 4669 printf("ctl_alloc_lun: FETD %s port %d returned error " 4670 "%d for lun_enable on target %ju lun %d\n", 4671 port->port_name, port->targ_port, retval, 4672 (uintmax_t)target_id.id, lun_number); 4673 } else 4674 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4675 } 4676 return (0); 4677} 4678 4679/* 4680 * Delete a LUN. 4681 * Assumptions: 4682 * - LUN has already been marked invalid and any pending I/O has been taken 4683 * care of. 4684 */ 4685static int 4686ctl_free_lun(struct ctl_lun *lun) 4687{ 4688 struct ctl_softc *softc; 4689#if 0 4690 struct ctl_port *port; 4691#endif 4692 struct ctl_lun *nlun; 4693 int i; 4694 4695 softc = lun->ctl_softc; 4696 4697 mtx_assert(&softc->ctl_lock, MA_OWNED); 4698 4699 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4700 4701 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4702 4703 softc->ctl_luns[lun->lun] = NULL; 4704 4705 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4706 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4707 4708 softc->num_luns--; 4709 4710 /* 4711 * XXX KDM this scheme only works for a single target/multiple LUN 4712 * setup. It needs to be revamped for a multiple target scheme. 4713 * 4714 * XXX KDM this results in port->lun_disable() getting called twice, 4715 * once when ctl_disable_lun() is called, and a second time here. 4716 * We really need to re-think the LUN disable semantics. There 4717 * should probably be several steps/levels to LUN removal: 4718 * - disable 4719 * - invalidate 4720 * - free 4721 * 4722 * Right now we only have a disable method when communicating to 4723 * the front end ports, at least for individual LUNs. 4724 */ 4725#if 0 4726 STAILQ_FOREACH(port, &softc->port_list, links) { 4727 int retval; 4728 4729 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4730 lun->lun); 4731 if (retval != 0) { 4732 printf("ctl_free_lun: FETD %s port %d returned error " 4733 "%d for lun_disable on target %ju lun %jd\n", 4734 port->port_name, port->targ_port, retval, 4735 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4736 } 4737 4738 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4739 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4740 4741 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4742 if (retval != 0) { 4743 printf("ctl_free_lun: FETD %s port %d " 4744 "returned error %d for targ_disable on " 4745 "target %ju\n", port->port_name, 4746 port->targ_port, retval, 4747 (uintmax_t)lun->target.id); 4748 } else 4749 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4750 4751 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4752 continue; 4753 4754#if 0 4755 port->port_offline(port->onoff_arg); 4756 port->status &= ~CTL_PORT_STATUS_ONLINE; 4757#endif 4758 } 4759 } 4760#endif 4761 4762 /* 4763 * Tell the backend to free resources, if this LUN has a backend. 4764 */ 4765 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4766 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4767 4768 ctl_tpc_lun_shutdown(lun); 4769 mtx_destroy(&lun->lun_lock); 4770 free(lun->lun_devid, M_CTL); 4771 if (lun->flags & CTL_LUN_MALLOCED) 4772 free(lun, M_CTL); 4773 4774 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4776 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4777 } 4778 } 4779 4780 return (0); 4781} 4782 4783static void 4784ctl_create_lun(struct ctl_be_lun *be_lun) 4785{ 4786 struct ctl_softc *ctl_softc; 4787 4788 ctl_softc = control_softc; 4789 4790 /* 4791 * ctl_alloc_lun() should handle all potential failure cases. 4792 */ 4793 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4794} 4795 4796int 4797ctl_add_lun(struct ctl_be_lun *be_lun) 4798{ 4799 struct ctl_softc *ctl_softc = control_softc; 4800 4801 mtx_lock(&ctl_softc->ctl_lock); 4802 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4803 mtx_unlock(&ctl_softc->ctl_lock); 4804 wakeup(&ctl_softc->pending_lun_queue); 4805 4806 return (0); 4807} 4808 4809int 4810ctl_enable_lun(struct ctl_be_lun *be_lun) 4811{ 4812 struct ctl_softc *ctl_softc; 4813 struct ctl_port *port, *nport; 4814 struct ctl_lun *lun; 4815 int retval; 4816 4817 ctl_softc = control_softc; 4818 4819 lun = (struct ctl_lun *)be_lun->ctl_lun; 4820 4821 mtx_lock(&ctl_softc->ctl_lock); 4822 mtx_lock(&lun->lun_lock); 4823 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4824 /* 4825 * eh? Why did we get called if the LUN is already 4826 * enabled? 4827 */ 4828 mtx_unlock(&lun->lun_lock); 4829 mtx_unlock(&ctl_softc->ctl_lock); 4830 return (0); 4831 } 4832 lun->flags &= ~CTL_LUN_DISABLED; 4833 mtx_unlock(&lun->lun_lock); 4834 4835 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4836 nport = STAILQ_NEXT(port, links); 4837 4838 /* 4839 * Drop the lock while we call the FETD's enable routine. 4840 * This can lead to a callback into CTL (at least in the 4841 * case of the internal initiator frontend. 4842 */ 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4845 mtx_lock(&ctl_softc->ctl_lock); 4846 if (retval != 0) { 4847 printf("%s: FETD %s port %d returned error " 4848 "%d for lun_enable on target %ju lun %jd\n", 4849 __func__, port->port_name, port->targ_port, retval, 4850 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4851 } 4852#if 0 4853 else { 4854 /* NOTE: TODO: why does lun enable affect port status? */ 4855 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4856 } 4857#endif 4858 } 4859 4860 mtx_unlock(&ctl_softc->ctl_lock); 4861 4862 return (0); 4863} 4864 4865int 4866ctl_disable_lun(struct ctl_be_lun *be_lun) 4867{ 4868 struct ctl_softc *ctl_softc; 4869 struct ctl_port *port; 4870 struct ctl_lun *lun; 4871 int retval; 4872 4873 ctl_softc = control_softc; 4874 4875 lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&ctl_softc->ctl_lock); 4878 mtx_lock(&lun->lun_lock); 4879 if (lun->flags & CTL_LUN_DISABLED) { 4880 mtx_unlock(&lun->lun_lock); 4881 mtx_unlock(&ctl_softc->ctl_lock); 4882 return (0); 4883 } 4884 lun->flags |= CTL_LUN_DISABLED; 4885 mtx_unlock(&lun->lun_lock); 4886 4887 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4888 mtx_unlock(&ctl_softc->ctl_lock); 4889 /* 4890 * Drop the lock before we call the frontend's disable 4891 * routine, to avoid lock order reversals. 4892 * 4893 * XXX KDM what happens if the frontend list changes while 4894 * we're traversing it? It's unlikely, but should be handled. 4895 */ 4896 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4897 lun->lun); 4898 mtx_lock(&ctl_softc->ctl_lock); 4899 if (retval != 0) { 4900 printf("ctl_alloc_lun: FETD %s port %d returned error " 4901 "%d for lun_disable on target %ju lun %jd\n", 4902 port->port_name, port->targ_port, retval, 4903 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4904 } 4905 } 4906 4907 mtx_unlock(&ctl_softc->ctl_lock); 4908 4909 return (0); 4910} 4911 4912int 4913ctl_start_lun(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_softc *ctl_softc; 4916 struct ctl_lun *lun; 4917 4918 ctl_softc = control_softc; 4919 4920 lun = (struct ctl_lun *)be_lun->ctl_lun; 4921 4922 mtx_lock(&lun->lun_lock); 4923 lun->flags &= ~CTL_LUN_STOPPED; 4924 mtx_unlock(&lun->lun_lock); 4925 4926 return (0); 4927} 4928 4929int 4930ctl_stop_lun(struct ctl_be_lun *be_lun) 4931{ 4932 struct ctl_softc *ctl_softc; 4933 struct ctl_lun *lun; 4934 4935 ctl_softc = control_softc; 4936 4937 lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 4939 mtx_lock(&lun->lun_lock); 4940 lun->flags |= CTL_LUN_STOPPED; 4941 mtx_unlock(&lun->lun_lock); 4942 4943 return (0); 4944} 4945 4946int 4947ctl_lun_offline(struct ctl_be_lun *be_lun) 4948{ 4949 struct ctl_softc *ctl_softc; 4950 struct ctl_lun *lun; 4951 4952 ctl_softc = control_softc; 4953 4954 lun = (struct ctl_lun *)be_lun->ctl_lun; 4955 4956 mtx_lock(&lun->lun_lock); 4957 lun->flags |= CTL_LUN_OFFLINE; 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961} 4962 4963int 4964ctl_lun_online(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_lun *lun; 4968 4969 ctl_softc = control_softc; 4970 4971 lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 lun->flags &= ~CTL_LUN_OFFLINE; 4975 mtx_unlock(&lun->lun_lock); 4976 4977 return (0); 4978} 4979 4980int 4981ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_softc *ctl_softc; 4984 struct ctl_lun *lun; 4985 4986 ctl_softc = control_softc; 4987 4988 lun = (struct ctl_lun *)be_lun->ctl_lun; 4989 4990 mtx_lock(&lun->lun_lock); 4991 4992 /* 4993 * The LUN needs to be disabled before it can be marked invalid. 4994 */ 4995 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4996 mtx_unlock(&lun->lun_lock); 4997 return (-1); 4998 } 4999 /* 5000 * Mark the LUN invalid. 5001 */ 5002 lun->flags |= CTL_LUN_INVALID; 5003 5004 /* 5005 * If there is nothing in the OOA queue, go ahead and free the LUN. 5006 * If we have something in the OOA queue, we'll free it when the 5007 * last I/O completes. 5008 */ 5009 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5010 mtx_unlock(&lun->lun_lock); 5011 mtx_lock(&ctl_softc->ctl_lock); 5012 ctl_free_lun(lun); 5013 mtx_unlock(&ctl_softc->ctl_lock); 5014 } else 5015 mtx_unlock(&lun->lun_lock); 5016 5017 return (0); 5018} 5019 5020int 5021ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5022{ 5023 struct ctl_softc *ctl_softc; 5024 struct ctl_lun *lun; 5025 5026 ctl_softc = control_softc; 5027 lun = (struct ctl_lun *)be_lun->ctl_lun; 5028 5029 mtx_lock(&lun->lun_lock); 5030 lun->flags |= CTL_LUN_INOPERABLE; 5031 mtx_unlock(&lun->lun_lock); 5032 5033 return (0); 5034} 5035 5036int 5037ctl_lun_operable(struct ctl_be_lun *be_lun) 5038{ 5039 struct ctl_softc *ctl_softc; 5040 struct ctl_lun *lun; 5041 5042 ctl_softc = control_softc; 5043 lun = (struct ctl_lun *)be_lun->ctl_lun; 5044 5045 mtx_lock(&lun->lun_lock); 5046 lun->flags &= ~CTL_LUN_INOPERABLE; 5047 mtx_unlock(&lun->lun_lock); 5048 5049 return (0); 5050} 5051 5052int 5053ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5054 int lock) 5055{ 5056 struct ctl_softc *softc; 5057 struct ctl_lun *lun; 5058 struct copan_aps_subpage *current_sp; 5059 struct ctl_page_index *page_index; 5060 int i; 5061 5062 softc = control_softc; 5063 5064 mtx_lock(&softc->ctl_lock); 5065 5066 lun = (struct ctl_lun *)be_lun->ctl_lun; 5067 mtx_lock(&lun->lun_lock); 5068 5069 page_index = NULL; 5070 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5071 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5072 APS_PAGE_CODE) 5073 continue; 5074 5075 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5076 continue; 5077 page_index = &lun->mode_pages.index[i]; 5078 } 5079 5080 if (page_index == NULL) { 5081 mtx_unlock(&lun->lun_lock); 5082 mtx_unlock(&softc->ctl_lock); 5083 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5084 (uintmax_t)lun->lun); 5085 return (1); 5086 } 5087#if 0 5088 if ((softc->aps_locked_lun != 0) 5089 && (softc->aps_locked_lun != lun->lun)) { 5090 printf("%s: attempt to lock LUN %llu when %llu is already " 5091 "locked\n"); 5092 mtx_unlock(&lun->lun_lock); 5093 mtx_unlock(&softc->ctl_lock); 5094 return (1); 5095 } 5096#endif 5097 5098 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5099 (page_index->page_len * CTL_PAGE_CURRENT)); 5100 5101 if (lock != 0) { 5102 current_sp->lock_active = APS_LOCK_ACTIVE; 5103 softc->aps_locked_lun = lun->lun; 5104 } else { 5105 current_sp->lock_active = 0; 5106 softc->aps_locked_lun = 0; 5107 } 5108 5109 5110 /* 5111 * If we're in HA mode, try to send the lock message to the other 5112 * side. 5113 */ 5114 if (ctl_is_single == 0) { 5115 int isc_retval; 5116 union ctl_ha_msg lock_msg; 5117 5118 lock_msg.hdr.nexus = *nexus; 5119 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5120 if (lock != 0) 5121 lock_msg.aps.lock_flag = 1; 5122 else 5123 lock_msg.aps.lock_flag = 0; 5124 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5125 sizeof(lock_msg), 0); 5126 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5127 printf("%s: APS (lock=%d) error returned from " 5128 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5129 mtx_unlock(&lun->lun_lock); 5130 mtx_unlock(&softc->ctl_lock); 5131 return (1); 5132 } 5133 } 5134 5135 mtx_unlock(&lun->lun_lock); 5136 mtx_unlock(&softc->ctl_lock); 5137 5138 return (0); 5139} 5140 5141void 5142ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5143{ 5144 struct ctl_lun *lun; 5145 struct ctl_softc *softc; 5146 int i; 5147 5148 softc = control_softc; 5149 5150 lun = (struct ctl_lun *)be_lun->ctl_lun; 5151 5152 mtx_lock(&lun->lun_lock); 5153 5154 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5155 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5156 5157 mtx_unlock(&lun->lun_lock); 5158} 5159 5160/* 5161 * Backend "memory move is complete" callback for requests that never 5162 * make it down to say RAIDCore's configuration code. 5163 */ 5164int 5165ctl_config_move_done(union ctl_io *io) 5166{ 5167 int retval; 5168 5169 retval = CTL_RETVAL_COMPLETE; 5170 5171 5172 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5173 /* 5174 * XXX KDM this shouldn't happen, but what if it does? 5175 */ 5176 if (io->io_hdr.io_type != CTL_IO_SCSI) 5177 panic("I/O type isn't CTL_IO_SCSI!"); 5178 5179 if ((io->io_hdr.port_status == 0) 5180 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5181 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5182 io->io_hdr.status = CTL_SUCCESS; 5183 else if ((io->io_hdr.port_status != 0) 5184 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5185 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5186 /* 5187 * For hardware error sense keys, the sense key 5188 * specific value is defined to be a retry count, 5189 * but we use it to pass back an internal FETD 5190 * error code. XXX KDM Hopefully the FETD is only 5191 * using 16 bits for an error code, since that's 5192 * all the space we have in the sks field. 5193 */ 5194 ctl_set_internal_failure(&io->scsiio, 5195 /*sks_valid*/ 1, 5196 /*retry_count*/ 5197 io->io_hdr.port_status); 5198 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5199 free(io->scsiio.kern_data_ptr, M_CTL); 5200 ctl_done(io); 5201 goto bailout; 5202 } 5203 5204 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5205 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5206 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5207 /* 5208 * XXX KDM just assuming a single pointer here, and not a 5209 * S/G list. If we start using S/G lists for config data, 5210 * we'll need to know how to clean them up here as well. 5211 */ 5212 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5213 free(io->scsiio.kern_data_ptr, M_CTL); 5214 /* Hopefully the user has already set the status... */ 5215 ctl_done(io); 5216 } else { 5217 /* 5218 * XXX KDM now we need to continue data movement. Some 5219 * options: 5220 * - call ctl_scsiio() again? We don't do this for data 5221 * writes, because for those at least we know ahead of 5222 * time where the write will go and how long it is. For 5223 * config writes, though, that information is largely 5224 * contained within the write itself, thus we need to 5225 * parse out the data again. 5226 * 5227 * - Call some other function once the data is in? 5228 */ 5229 5230 /* 5231 * XXX KDM call ctl_scsiio() again for now, and check flag 5232 * bits to see whether we're allocated or not. 5233 */ 5234 retval = ctl_scsiio(&io->scsiio); 5235 } 5236bailout: 5237 return (retval); 5238} 5239 5240/* 5241 * This gets called by a backend driver when it is done with a 5242 * data_submit method. 5243 */ 5244void 5245ctl_data_submit_done(union ctl_io *io) 5246{ 5247 /* 5248 * If the IO_CONT flag is set, we need to call the supplied 5249 * function to continue processing the I/O, instead of completing 5250 * the I/O just yet. 5251 * 5252 * If there is an error, though, we don't want to keep processing. 5253 * Instead, just send status back to the initiator. 5254 */ 5255 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5256 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5257 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5258 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5259 io->scsiio.io_cont(io); 5260 return; 5261 } 5262 ctl_done(io); 5263} 5264 5265/* 5266 * This gets called by a backend driver when it is done with a 5267 * configuration write. 5268 */ 5269void 5270ctl_config_write_done(union ctl_io *io) 5271{ 5272 uint8_t *buf; 5273 5274 /* 5275 * If the IO_CONT flag is set, we need to call the supplied 5276 * function to continue processing the I/O, instead of completing 5277 * the I/O just yet. 5278 * 5279 * If there is an error, though, we don't want to keep processing. 5280 * Instead, just send status back to the initiator. 5281 */ 5282 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5283 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5284 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5285 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5286 io->scsiio.io_cont(io); 5287 return; 5288 } 5289 /* 5290 * Since a configuration write can be done for commands that actually 5291 * have data allocated, like write buffer, and commands that have 5292 * no data, like start/stop unit, we need to check here. 5293 */ 5294 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5295 buf = io->scsiio.kern_data_ptr; 5296 else 5297 buf = NULL; 5298 ctl_done(io); 5299 if (buf) 5300 free(buf, M_CTL); 5301} 5302 5303/* 5304 * SCSI release command. 5305 */ 5306int 5307ctl_scsi_release(struct ctl_scsiio *ctsio) 5308{ 5309 int length, longid, thirdparty_id, resv_id; 5310 struct ctl_softc *ctl_softc; 5311 struct ctl_lun *lun; 5312 uint32_t residx; 5313 5314 length = 0; 5315 resv_id = 0; 5316 5317 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5318 5319 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5320 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5321 ctl_softc = control_softc; 5322 5323 switch (ctsio->cdb[0]) { 5324 case RELEASE_10: { 5325 struct scsi_release_10 *cdb; 5326 5327 cdb = (struct scsi_release_10 *)ctsio->cdb; 5328 5329 if (cdb->byte2 & SR10_LONGID) 5330 longid = 1; 5331 else 5332 thirdparty_id = cdb->thirdparty_id; 5333 5334 resv_id = cdb->resv_id; 5335 length = scsi_2btoul(cdb->length); 5336 break; 5337 } 5338 } 5339 5340 5341 /* 5342 * XXX KDM right now, we only support LUN reservation. We don't 5343 * support 3rd party reservations, or extent reservations, which 5344 * might actually need the parameter list. If we've gotten this 5345 * far, we've got a LUN reservation. Anything else got kicked out 5346 * above. So, according to SPC, ignore the length. 5347 */ 5348 length = 0; 5349 5350 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5351 && (length > 0)) { 5352 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5353 ctsio->kern_data_len = length; 5354 ctsio->kern_total_len = length; 5355 ctsio->kern_data_resid = 0; 5356 ctsio->kern_rel_offset = 0; 5357 ctsio->kern_sg_entries = 0; 5358 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5359 ctsio->be_move_done = ctl_config_move_done; 5360 ctl_datamove((union ctl_io *)ctsio); 5361 5362 return (CTL_RETVAL_COMPLETE); 5363 } 5364 5365 if (length > 0) 5366 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5367 5368 mtx_lock(&lun->lun_lock); 5369 5370 /* 5371 * According to SPC, it is not an error for an intiator to attempt 5372 * to release a reservation on a LUN that isn't reserved, or that 5373 * is reserved by another initiator. The reservation can only be 5374 * released, though, by the initiator who made it or by one of 5375 * several reset type events. 5376 */ 5377 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5378 lun->flags &= ~CTL_LUN_RESERVED; 5379 5380 mtx_unlock(&lun->lun_lock); 5381 5382 ctsio->scsi_status = SCSI_STATUS_OK; 5383 ctsio->io_hdr.status = CTL_SUCCESS; 5384 5385 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5386 free(ctsio->kern_data_ptr, M_CTL); 5387 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5388 } 5389 5390 ctl_done((union ctl_io *)ctsio); 5391 return (CTL_RETVAL_COMPLETE); 5392} 5393 5394int 5395ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5396{ 5397 int extent, thirdparty, longid; 5398 int resv_id, length; 5399 uint64_t thirdparty_id; 5400 struct ctl_softc *ctl_softc; 5401 struct ctl_lun *lun; 5402 uint32_t residx; 5403 5404 extent = 0; 5405 thirdparty = 0; 5406 longid = 0; 5407 resv_id = 0; 5408 length = 0; 5409 thirdparty_id = 0; 5410 5411 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5412 5413 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5414 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5415 ctl_softc = control_softc; 5416 5417 switch (ctsio->cdb[0]) { 5418 case RESERVE_10: { 5419 struct scsi_reserve_10 *cdb; 5420 5421 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5422 5423 if (cdb->byte2 & SR10_LONGID) 5424 longid = 1; 5425 else 5426 thirdparty_id = cdb->thirdparty_id; 5427 5428 resv_id = cdb->resv_id; 5429 length = scsi_2btoul(cdb->length); 5430 break; 5431 } 5432 } 5433 5434 /* 5435 * XXX KDM right now, we only support LUN reservation. We don't 5436 * support 3rd party reservations, or extent reservations, which 5437 * might actually need the parameter list. If we've gotten this 5438 * far, we've got a LUN reservation. Anything else got kicked out 5439 * above. So, according to SPC, ignore the length. 5440 */ 5441 length = 0; 5442 5443 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5444 && (length > 0)) { 5445 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5446 ctsio->kern_data_len = length; 5447 ctsio->kern_total_len = length; 5448 ctsio->kern_data_resid = 0; 5449 ctsio->kern_rel_offset = 0; 5450 ctsio->kern_sg_entries = 0; 5451 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5452 ctsio->be_move_done = ctl_config_move_done; 5453 ctl_datamove((union ctl_io *)ctsio); 5454 5455 return (CTL_RETVAL_COMPLETE); 5456 } 5457 5458 if (length > 0) 5459 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5460 5461 mtx_lock(&lun->lun_lock); 5462 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5463 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5464 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5465 goto bailout; 5466 } 5467 5468 lun->flags |= CTL_LUN_RESERVED; 5469 lun->res_idx = residx; 5470 5471 ctsio->scsi_status = SCSI_STATUS_OK; 5472 ctsio->io_hdr.status = CTL_SUCCESS; 5473 5474bailout: 5475 mtx_unlock(&lun->lun_lock); 5476 5477 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5478 free(ctsio->kern_data_ptr, M_CTL); 5479 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5480 } 5481 5482 ctl_done((union ctl_io *)ctsio); 5483 return (CTL_RETVAL_COMPLETE); 5484} 5485 5486int 5487ctl_start_stop(struct ctl_scsiio *ctsio) 5488{ 5489 struct scsi_start_stop_unit *cdb; 5490 struct ctl_lun *lun; 5491 struct ctl_softc *ctl_softc; 5492 int retval; 5493 5494 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5495 5496 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5497 ctl_softc = control_softc; 5498 retval = 0; 5499 5500 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5501 5502 /* 5503 * XXX KDM 5504 * We don't support the immediate bit on a stop unit. In order to 5505 * do that, we would need to code up a way to know that a stop is 5506 * pending, and hold off any new commands until it completes, one 5507 * way or another. Then we could accept or reject those commands 5508 * depending on its status. We would almost need to do the reverse 5509 * of what we do below for an immediate start -- return the copy of 5510 * the ctl_io to the FETD with status to send to the host (and to 5511 * free the copy!) and then free the original I/O once the stop 5512 * actually completes. That way, the OOA queue mechanism can work 5513 * to block commands that shouldn't proceed. Another alternative 5514 * would be to put the copy in the queue in place of the original, 5515 * and return the original back to the caller. That could be 5516 * slightly safer.. 5517 */ 5518 if ((cdb->byte2 & SSS_IMMED) 5519 && ((cdb->how & SSS_START) == 0)) { 5520 ctl_set_invalid_field(ctsio, 5521 /*sks_valid*/ 1, 5522 /*command*/ 1, 5523 /*field*/ 1, 5524 /*bit_valid*/ 1, 5525 /*bit*/ 0); 5526 ctl_done((union ctl_io *)ctsio); 5527 return (CTL_RETVAL_COMPLETE); 5528 } 5529 5530 if ((lun->flags & CTL_LUN_PR_RESERVED) 5531 && ((cdb->how & SSS_START)==0)) { 5532 uint32_t residx; 5533 5534 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5535 if (!lun->per_res[residx].registered 5536 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5537 5538 ctl_set_reservation_conflict(ctsio); 5539 ctl_done((union ctl_io *)ctsio); 5540 return (CTL_RETVAL_COMPLETE); 5541 } 5542 } 5543 5544 /* 5545 * If there is no backend on this device, we can't start or stop 5546 * it. In theory we shouldn't get any start/stop commands in the 5547 * first place at this level if the LUN doesn't have a backend. 5548 * That should get stopped by the command decode code. 5549 */ 5550 if (lun->backend == NULL) { 5551 ctl_set_invalid_opcode(ctsio); 5552 ctl_done((union ctl_io *)ctsio); 5553 return (CTL_RETVAL_COMPLETE); 5554 } 5555 5556 /* 5557 * XXX KDM Copan-specific offline behavior. 5558 * Figure out a reasonable way to port this? 5559 */ 5560#ifdef NEEDTOPORT 5561 mtx_lock(&lun->lun_lock); 5562 5563 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5564 && (lun->flags & CTL_LUN_OFFLINE)) { 5565 /* 5566 * If the LUN is offline, and the on/offline bit isn't set, 5567 * reject the start or stop. Otherwise, let it through. 5568 */ 5569 mtx_unlock(&lun->lun_lock); 5570 ctl_set_lun_not_ready(ctsio); 5571 ctl_done((union ctl_io *)ctsio); 5572 } else { 5573 mtx_unlock(&lun->lun_lock); 5574#endif /* NEEDTOPORT */ 5575 /* 5576 * This could be a start or a stop when we're online, 5577 * or a stop/offline or start/online. A start or stop when 5578 * we're offline is covered in the case above. 5579 */ 5580 /* 5581 * In the non-immediate case, we send the request to 5582 * the backend and return status to the user when 5583 * it is done. 5584 * 5585 * In the immediate case, we allocate a new ctl_io 5586 * to hold a copy of the request, and send that to 5587 * the backend. We then set good status on the 5588 * user's request and return it immediately. 5589 */ 5590 if (cdb->byte2 & SSS_IMMED) { 5591 union ctl_io *new_io; 5592 5593 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5594 if (new_io == NULL) { 5595 ctl_set_busy(ctsio); 5596 ctl_done((union ctl_io *)ctsio); 5597 } else { 5598 ctl_copy_io((union ctl_io *)ctsio, 5599 new_io); 5600 retval = lun->backend->config_write(new_io); 5601 ctl_set_success(ctsio); 5602 ctl_done((union ctl_io *)ctsio); 5603 } 5604 } else { 5605 retval = lun->backend->config_write( 5606 (union ctl_io *)ctsio); 5607 } 5608#ifdef NEEDTOPORT 5609 } 5610#endif 5611 return (retval); 5612} 5613 5614/* 5615 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5616 * we don't really do anything with the LBA and length fields if the user 5617 * passes them in. Instead we'll just flush out the cache for the entire 5618 * LUN. 5619 */ 5620int 5621ctl_sync_cache(struct ctl_scsiio *ctsio) 5622{ 5623 struct ctl_lun *lun; 5624 struct ctl_softc *ctl_softc; 5625 uint64_t starting_lba; 5626 uint32_t block_count; 5627 int retval; 5628 5629 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5630 5631 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5632 ctl_softc = control_softc; 5633 retval = 0; 5634 5635 switch (ctsio->cdb[0]) { 5636 case SYNCHRONIZE_CACHE: { 5637 struct scsi_sync_cache *cdb; 5638 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5639 5640 starting_lba = scsi_4btoul(cdb->begin_lba); 5641 block_count = scsi_2btoul(cdb->lb_count); 5642 break; 5643 } 5644 case SYNCHRONIZE_CACHE_16: { 5645 struct scsi_sync_cache_16 *cdb; 5646 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5647 5648 starting_lba = scsi_8btou64(cdb->begin_lba); 5649 block_count = scsi_4btoul(cdb->lb_count); 5650 break; 5651 } 5652 default: 5653 ctl_set_invalid_opcode(ctsio); 5654 ctl_done((union ctl_io *)ctsio); 5655 goto bailout; 5656 break; /* NOTREACHED */ 5657 } 5658 5659 /* 5660 * We check the LBA and length, but don't do anything with them. 5661 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5662 * get flushed. This check will just help satisfy anyone who wants 5663 * to see an error for an out of range LBA. 5664 */ 5665 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5666 ctl_set_lba_out_of_range(ctsio); 5667 ctl_done((union ctl_io *)ctsio); 5668 goto bailout; 5669 } 5670 5671 /* 5672 * If this LUN has no backend, we can't flush the cache anyway. 5673 */ 5674 if (lun->backend == NULL) { 5675 ctl_set_invalid_opcode(ctsio); 5676 ctl_done((union ctl_io *)ctsio); 5677 goto bailout; 5678 } 5679 5680 /* 5681 * Check to see whether we're configured to send the SYNCHRONIZE 5682 * CACHE command directly to the back end. 5683 */ 5684 mtx_lock(&lun->lun_lock); 5685 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5686 && (++(lun->sync_count) >= lun->sync_interval)) { 5687 lun->sync_count = 0; 5688 mtx_unlock(&lun->lun_lock); 5689 retval = lun->backend->config_write((union ctl_io *)ctsio); 5690 } else { 5691 mtx_unlock(&lun->lun_lock); 5692 ctl_set_success(ctsio); 5693 ctl_done((union ctl_io *)ctsio); 5694 } 5695 5696bailout: 5697 5698 return (retval); 5699} 5700 5701int 5702ctl_format(struct ctl_scsiio *ctsio) 5703{ 5704 struct scsi_format *cdb; 5705 struct ctl_lun *lun; 5706 struct ctl_softc *ctl_softc; 5707 int length, defect_list_len; 5708 5709 CTL_DEBUG_PRINT(("ctl_format\n")); 5710 5711 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5712 ctl_softc = control_softc; 5713 5714 cdb = (struct scsi_format *)ctsio->cdb; 5715 5716 length = 0; 5717 if (cdb->byte2 & SF_FMTDATA) { 5718 if (cdb->byte2 & SF_LONGLIST) 5719 length = sizeof(struct scsi_format_header_long); 5720 else 5721 length = sizeof(struct scsi_format_header_short); 5722 } 5723 5724 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5725 && (length > 0)) { 5726 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5727 ctsio->kern_data_len = length; 5728 ctsio->kern_total_len = length; 5729 ctsio->kern_data_resid = 0; 5730 ctsio->kern_rel_offset = 0; 5731 ctsio->kern_sg_entries = 0; 5732 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5733 ctsio->be_move_done = ctl_config_move_done; 5734 ctl_datamove((union ctl_io *)ctsio); 5735 5736 return (CTL_RETVAL_COMPLETE); 5737 } 5738 5739 defect_list_len = 0; 5740 5741 if (cdb->byte2 & SF_FMTDATA) { 5742 if (cdb->byte2 & SF_LONGLIST) { 5743 struct scsi_format_header_long *header; 5744 5745 header = (struct scsi_format_header_long *) 5746 ctsio->kern_data_ptr; 5747 5748 defect_list_len = scsi_4btoul(header->defect_list_len); 5749 if (defect_list_len != 0) { 5750 ctl_set_invalid_field(ctsio, 5751 /*sks_valid*/ 1, 5752 /*command*/ 0, 5753 /*field*/ 2, 5754 /*bit_valid*/ 0, 5755 /*bit*/ 0); 5756 goto bailout; 5757 } 5758 } else { 5759 struct scsi_format_header_short *header; 5760 5761 header = (struct scsi_format_header_short *) 5762 ctsio->kern_data_ptr; 5763 5764 defect_list_len = scsi_2btoul(header->defect_list_len); 5765 if (defect_list_len != 0) { 5766 ctl_set_invalid_field(ctsio, 5767 /*sks_valid*/ 1, 5768 /*command*/ 0, 5769 /*field*/ 2, 5770 /*bit_valid*/ 0, 5771 /*bit*/ 0); 5772 goto bailout; 5773 } 5774 } 5775 } 5776 5777 /* 5778 * The format command will clear out the "Medium format corrupted" 5779 * status if set by the configuration code. That status is really 5780 * just a way to notify the host that we have lost the media, and 5781 * get them to issue a command that will basically make them think 5782 * they're blowing away the media. 5783 */ 5784 mtx_lock(&lun->lun_lock); 5785 lun->flags &= ~CTL_LUN_INOPERABLE; 5786 mtx_unlock(&lun->lun_lock); 5787 5788 ctsio->scsi_status = SCSI_STATUS_OK; 5789 ctsio->io_hdr.status = CTL_SUCCESS; 5790bailout: 5791 5792 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5793 free(ctsio->kern_data_ptr, M_CTL); 5794 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5795 } 5796 5797 ctl_done((union ctl_io *)ctsio); 5798 return (CTL_RETVAL_COMPLETE); 5799} 5800 5801int 5802ctl_read_buffer(struct ctl_scsiio *ctsio) 5803{ 5804 struct scsi_read_buffer *cdb; 5805 struct ctl_lun *lun; 5806 int buffer_offset, len; 5807 static uint8_t descr[4]; 5808 static uint8_t echo_descr[4] = { 0 }; 5809 5810 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5811 5812 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5813 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5814 5815 if (lun->flags & CTL_LUN_PR_RESERVED) { 5816 uint32_t residx; 5817 5818 /* 5819 * XXX KDM need a lock here. 5820 */ 5821 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5822 if ((lun->res_type == SPR_TYPE_EX_AC 5823 && residx != lun->pr_res_idx) 5824 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5825 || lun->res_type == SPR_TYPE_EX_AC_AR) 5826 && !lun->per_res[residx].registered)) { 5827 ctl_set_reservation_conflict(ctsio); 5828 ctl_done((union ctl_io *)ctsio); 5829 return (CTL_RETVAL_COMPLETE); 5830 } 5831 } 5832 5833 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5834 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5835 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5836 ctl_set_invalid_field(ctsio, 5837 /*sks_valid*/ 1, 5838 /*command*/ 1, 5839 /*field*/ 1, 5840 /*bit_valid*/ 1, 5841 /*bit*/ 4); 5842 ctl_done((union ctl_io *)ctsio); 5843 return (CTL_RETVAL_COMPLETE); 5844 } 5845 5846 len = scsi_3btoul(cdb->length); 5847 buffer_offset = scsi_3btoul(cdb->offset); 5848 5849 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5850 ctl_set_invalid_field(ctsio, 5851 /*sks_valid*/ 1, 5852 /*command*/ 1, 5853 /*field*/ 6, 5854 /*bit_valid*/ 0, 5855 /*bit*/ 0); 5856 ctl_done((union ctl_io *)ctsio); 5857 return (CTL_RETVAL_COMPLETE); 5858 } 5859 5860 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5861 descr[0] = 0; 5862 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5863 ctsio->kern_data_ptr = descr; 5864 len = min(len, sizeof(descr)); 5865 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5866 ctsio->kern_data_ptr = echo_descr; 5867 len = min(len, sizeof(echo_descr)); 5868 } else 5869 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5870 ctsio->kern_data_len = len; 5871 ctsio->kern_total_len = len; 5872 ctsio->kern_data_resid = 0; 5873 ctsio->kern_rel_offset = 0; 5874 ctsio->kern_sg_entries = 0; 5875 ctsio->be_move_done = ctl_config_move_done; 5876 ctl_datamove((union ctl_io *)ctsio); 5877 5878 return (CTL_RETVAL_COMPLETE); 5879} 5880 5881int 5882ctl_write_buffer(struct ctl_scsiio *ctsio) 5883{ 5884 struct scsi_write_buffer *cdb; 5885 struct ctl_lun *lun; 5886 int buffer_offset, len; 5887 5888 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5889 5890 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5891 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5892 5893 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5894 ctl_set_invalid_field(ctsio, 5895 /*sks_valid*/ 1, 5896 /*command*/ 1, 5897 /*field*/ 1, 5898 /*bit_valid*/ 1, 5899 /*bit*/ 4); 5900 ctl_done((union ctl_io *)ctsio); 5901 return (CTL_RETVAL_COMPLETE); 5902 } 5903 5904 len = scsi_3btoul(cdb->length); 5905 buffer_offset = scsi_3btoul(cdb->offset); 5906 5907 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5908 ctl_set_invalid_field(ctsio, 5909 /*sks_valid*/ 1, 5910 /*command*/ 1, 5911 /*field*/ 6, 5912 /*bit_valid*/ 0, 5913 /*bit*/ 0); 5914 ctl_done((union ctl_io *)ctsio); 5915 return (CTL_RETVAL_COMPLETE); 5916 } 5917 5918 /* 5919 * If we've got a kernel request that hasn't been malloced yet, 5920 * malloc it and tell the caller the data buffer is here. 5921 */ 5922 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5923 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5924 ctsio->kern_data_len = len; 5925 ctsio->kern_total_len = len; 5926 ctsio->kern_data_resid = 0; 5927 ctsio->kern_rel_offset = 0; 5928 ctsio->kern_sg_entries = 0; 5929 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5930 ctsio->be_move_done = ctl_config_move_done; 5931 ctl_datamove((union ctl_io *)ctsio); 5932 5933 return (CTL_RETVAL_COMPLETE); 5934 } 5935 5936 ctl_done((union ctl_io *)ctsio); 5937 5938 return (CTL_RETVAL_COMPLETE); 5939} 5940 5941int 5942ctl_write_same(struct ctl_scsiio *ctsio) 5943{ 5944 struct ctl_lun *lun; 5945 struct ctl_lba_len_flags *lbalen; 5946 uint64_t lba; 5947 uint32_t num_blocks; 5948 int len, retval; 5949 uint8_t byte2; 5950 5951 retval = CTL_RETVAL_COMPLETE; 5952 5953 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5954 5955 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5956 5957 switch (ctsio->cdb[0]) { 5958 case WRITE_SAME_10: { 5959 struct scsi_write_same_10 *cdb; 5960 5961 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5962 5963 lba = scsi_4btoul(cdb->addr); 5964 num_blocks = scsi_2btoul(cdb->length); 5965 byte2 = cdb->byte2; 5966 break; 5967 } 5968 case WRITE_SAME_16: { 5969 struct scsi_write_same_16 *cdb; 5970 5971 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5972 5973 lba = scsi_8btou64(cdb->addr); 5974 num_blocks = scsi_4btoul(cdb->length); 5975 byte2 = cdb->byte2; 5976 break; 5977 } 5978 default: 5979 /* 5980 * We got a command we don't support. This shouldn't 5981 * happen, commands should be filtered out above us. 5982 */ 5983 ctl_set_invalid_opcode(ctsio); 5984 ctl_done((union ctl_io *)ctsio); 5985 5986 return (CTL_RETVAL_COMPLETE); 5987 break; /* NOTREACHED */ 5988 } 5989 5990 /* NDOB flag can be used only together with UNMAP */ 5991 if ((byte2 & (SWS_NDOB | SWS_UNMAP)) == SWS_NDOB) { 5992 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5993 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5994 ctl_done((union ctl_io *)ctsio); 5995 return (CTL_RETVAL_COMPLETE); 5996 } 5997 5998 /* 5999 * The first check is to make sure we're in bounds, the second 6000 * check is to catch wrap-around problems. If the lba + num blocks 6001 * is less than the lba, then we've wrapped around and the block 6002 * range is invalid anyway. 6003 */ 6004 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6005 || ((lba + num_blocks) < lba)) { 6006 ctl_set_lba_out_of_range(ctsio); 6007 ctl_done((union ctl_io *)ctsio); 6008 return (CTL_RETVAL_COMPLETE); 6009 } 6010 6011 /* Zero number of blocks means "to the last logical block" */ 6012 if (num_blocks == 0) { 6013 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6014 ctl_set_invalid_field(ctsio, 6015 /*sks_valid*/ 0, 6016 /*command*/ 1, 6017 /*field*/ 0, 6018 /*bit_valid*/ 0, 6019 /*bit*/ 0); 6020 ctl_done((union ctl_io *)ctsio); 6021 return (CTL_RETVAL_COMPLETE); 6022 } 6023 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6024 } 6025 6026 len = lun->be_lun->blocksize; 6027 6028 /* 6029 * If we've got a kernel request that hasn't been malloced yet, 6030 * malloc it and tell the caller the data buffer is here. 6031 */ 6032 if ((byte2 & SWS_NDOB) == 0 && 6033 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6034 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6035 ctsio->kern_data_len = len; 6036 ctsio->kern_total_len = len; 6037 ctsio->kern_data_resid = 0; 6038 ctsio->kern_rel_offset = 0; 6039 ctsio->kern_sg_entries = 0; 6040 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6041 ctsio->be_move_done = ctl_config_move_done; 6042 ctl_datamove((union ctl_io *)ctsio); 6043 6044 return (CTL_RETVAL_COMPLETE); 6045 } 6046 6047 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6048 lbalen->lba = lba; 6049 lbalen->len = num_blocks; 6050 lbalen->flags = byte2; 6051 retval = lun->backend->config_write((union ctl_io *)ctsio); 6052 6053 return (retval); 6054} 6055 6056int 6057ctl_unmap(struct ctl_scsiio *ctsio) 6058{ 6059 struct ctl_lun *lun; 6060 struct scsi_unmap *cdb; 6061 struct ctl_ptr_len_flags *ptrlen; 6062 struct scsi_unmap_header *hdr; 6063 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6064 uint64_t lba; 6065 uint32_t num_blocks; 6066 int len, retval; 6067 uint8_t byte2; 6068 6069 retval = CTL_RETVAL_COMPLETE; 6070 6071 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6072 6073 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6074 cdb = (struct scsi_unmap *)ctsio->cdb; 6075 6076 len = scsi_2btoul(cdb->length); 6077 byte2 = cdb->byte2; 6078 6079 /* 6080 * If we've got a kernel request that hasn't been malloced yet, 6081 * malloc it and tell the caller the data buffer is here. 6082 */ 6083 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6084 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6085 ctsio->kern_data_len = len; 6086 ctsio->kern_total_len = len; 6087 ctsio->kern_data_resid = 0; 6088 ctsio->kern_rel_offset = 0; 6089 ctsio->kern_sg_entries = 0; 6090 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6091 ctsio->be_move_done = ctl_config_move_done; 6092 ctl_datamove((union ctl_io *)ctsio); 6093 6094 return (CTL_RETVAL_COMPLETE); 6095 } 6096 6097 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6098 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6099 if (len < sizeof (*hdr) || 6100 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6101 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6102 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6103 ctl_set_invalid_field(ctsio, 6104 /*sks_valid*/ 0, 6105 /*command*/ 0, 6106 /*field*/ 0, 6107 /*bit_valid*/ 0, 6108 /*bit*/ 0); 6109 ctl_done((union ctl_io *)ctsio); 6110 return (CTL_RETVAL_COMPLETE); 6111 } 6112 len = scsi_2btoul(hdr->desc_length); 6113 buf = (struct scsi_unmap_desc *)(hdr + 1); 6114 end = buf + len / sizeof(*buf); 6115 6116 endnz = buf; 6117 for (range = buf; range < end; range++) { 6118 lba = scsi_8btou64(range->lba); 6119 num_blocks = scsi_4btoul(range->length); 6120 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6121 || ((lba + num_blocks) < lba)) { 6122 ctl_set_lba_out_of_range(ctsio); 6123 ctl_done((union ctl_io *)ctsio); 6124 return (CTL_RETVAL_COMPLETE); 6125 } 6126 if (num_blocks != 0) 6127 endnz = range + 1; 6128 } 6129 6130 /* 6131 * Block backend can not handle zero last range. 6132 * Filter it out and return if there is nothing left. 6133 */ 6134 len = (uint8_t *)endnz - (uint8_t *)buf; 6135 if (len == 0) { 6136 ctl_set_success(ctsio); 6137 ctl_done((union ctl_io *)ctsio); 6138 return (CTL_RETVAL_COMPLETE); 6139 } 6140 6141 mtx_lock(&lun->lun_lock); 6142 ptrlen = (struct ctl_ptr_len_flags *) 6143 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6144 ptrlen->ptr = (void *)buf; 6145 ptrlen->len = len; 6146 ptrlen->flags = byte2; 6147 ctl_check_blocked(lun); 6148 mtx_unlock(&lun->lun_lock); 6149 6150 retval = lun->backend->config_write((union ctl_io *)ctsio); 6151 return (retval); 6152} 6153 6154/* 6155 * Note that this function currently doesn't actually do anything inside 6156 * CTL to enforce things if the DQue bit is turned on. 6157 * 6158 * Also note that this function can't be used in the default case, because 6159 * the DQue bit isn't set in the changeable mask for the control mode page 6160 * anyway. This is just here as an example for how to implement a page 6161 * handler, and a placeholder in case we want to allow the user to turn 6162 * tagged queueing on and off. 6163 * 6164 * The D_SENSE bit handling is functional, however, and will turn 6165 * descriptor sense on and off for a given LUN. 6166 */ 6167int 6168ctl_control_page_handler(struct ctl_scsiio *ctsio, 6169 struct ctl_page_index *page_index, uint8_t *page_ptr) 6170{ 6171 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6172 struct ctl_lun *lun; 6173 struct ctl_softc *softc; 6174 int set_ua; 6175 uint32_t initidx; 6176 6177 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6178 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6179 set_ua = 0; 6180 6181 user_cp = (struct scsi_control_page *)page_ptr; 6182 current_cp = (struct scsi_control_page *) 6183 (page_index->page_data + (page_index->page_len * 6184 CTL_PAGE_CURRENT)); 6185 saved_cp = (struct scsi_control_page *) 6186 (page_index->page_data + (page_index->page_len * 6187 CTL_PAGE_SAVED)); 6188 6189 softc = control_softc; 6190 6191 mtx_lock(&lun->lun_lock); 6192 if (((current_cp->rlec & SCP_DSENSE) == 0) 6193 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6194 /* 6195 * Descriptor sense is currently turned off and the user 6196 * wants to turn it on. 6197 */ 6198 current_cp->rlec |= SCP_DSENSE; 6199 saved_cp->rlec |= SCP_DSENSE; 6200 lun->flags |= CTL_LUN_SENSE_DESC; 6201 set_ua = 1; 6202 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6203 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6204 /* 6205 * Descriptor sense is currently turned on, and the user 6206 * wants to turn it off. 6207 */ 6208 current_cp->rlec &= ~SCP_DSENSE; 6209 saved_cp->rlec &= ~SCP_DSENSE; 6210 lun->flags &= ~CTL_LUN_SENSE_DESC; 6211 set_ua = 1; 6212 } 6213 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6214 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6215 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6216 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6217 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6218 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6219 set_ua = 1; 6220 } 6221 if (set_ua != 0) { 6222 int i; 6223 /* 6224 * Let other initiators know that the mode 6225 * parameters for this LUN have changed. 6226 */ 6227 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6228 if (i == initidx) 6229 continue; 6230 6231 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6232 } 6233 } 6234 mtx_unlock(&lun->lun_lock); 6235 6236 return (0); 6237} 6238 6239int 6240ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6241 struct ctl_page_index *page_index, uint8_t *page_ptr) 6242{ 6243 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6244 struct ctl_lun *lun; 6245 int set_ua; 6246 uint32_t initidx; 6247 6248 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6249 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6250 set_ua = 0; 6251 6252 user_cp = (struct scsi_caching_page *)page_ptr; 6253 current_cp = (struct scsi_caching_page *) 6254 (page_index->page_data + (page_index->page_len * 6255 CTL_PAGE_CURRENT)); 6256 saved_cp = (struct scsi_caching_page *) 6257 (page_index->page_data + (page_index->page_len * 6258 CTL_PAGE_SAVED)); 6259 6260 mtx_lock(&lun->lun_lock); 6261 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6262 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6263 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6264 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6265 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6266 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6267 set_ua = 1; 6268 } 6269 if (set_ua != 0) { 6270 int i; 6271 /* 6272 * Let other initiators know that the mode 6273 * parameters for this LUN have changed. 6274 */ 6275 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6276 if (i == initidx) 6277 continue; 6278 6279 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6280 } 6281 } 6282 mtx_unlock(&lun->lun_lock); 6283 6284 return (0); 6285} 6286 6287int 6288ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6289 struct ctl_page_index *page_index, uint8_t *page_ptr) 6290{ 6291 return (0); 6292} 6293 6294int 6295ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6296 struct ctl_page_index *page_index, int pc) 6297{ 6298 struct copan_power_subpage *page; 6299 6300 page = (struct copan_power_subpage *)page_index->page_data + 6301 (page_index->page_len * pc); 6302 6303 switch (pc) { 6304 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6305 /* 6306 * We don't update the changable bits for this page. 6307 */ 6308 break; 6309 case SMS_PAGE_CTRL_CURRENT >> 6: 6310 case SMS_PAGE_CTRL_DEFAULT >> 6: 6311 case SMS_PAGE_CTRL_SAVED >> 6: 6312#ifdef NEEDTOPORT 6313 ctl_update_power_subpage(page); 6314#endif 6315 break; 6316 default: 6317#ifdef NEEDTOPORT 6318 EPRINT(0, "Invalid PC %d!!", pc); 6319#endif 6320 break; 6321 } 6322 return (0); 6323} 6324 6325 6326int 6327ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6328 struct ctl_page_index *page_index, uint8_t *page_ptr) 6329{ 6330 struct copan_aps_subpage *user_sp; 6331 struct copan_aps_subpage *current_sp; 6332 union ctl_modepage_info *modepage_info; 6333 struct ctl_softc *softc; 6334 struct ctl_lun *lun; 6335 int retval; 6336 6337 retval = CTL_RETVAL_COMPLETE; 6338 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6339 (page_index->page_len * CTL_PAGE_CURRENT)); 6340 softc = control_softc; 6341 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6342 6343 user_sp = (struct copan_aps_subpage *)page_ptr; 6344 6345 modepage_info = (union ctl_modepage_info *) 6346 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6347 6348 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6349 modepage_info->header.subpage = page_index->subpage; 6350 modepage_info->aps.lock_active = user_sp->lock_active; 6351 6352 mtx_lock(&softc->ctl_lock); 6353 6354 /* 6355 * If there is a request to lock the LUN and another LUN is locked 6356 * this is an error. If the requested LUN is already locked ignore 6357 * the request. If no LUN is locked attempt to lock it. 6358 * if there is a request to unlock the LUN and the LUN is currently 6359 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6360 * if another LUN is locked or no LUN is locked. 6361 */ 6362 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6363 if (softc->aps_locked_lun == lun->lun) { 6364 /* 6365 * This LUN is already locked, so we're done. 6366 */ 6367 retval = CTL_RETVAL_COMPLETE; 6368 } else if (softc->aps_locked_lun == 0) { 6369 /* 6370 * No one has the lock, pass the request to the 6371 * backend. 6372 */ 6373 retval = lun->backend->config_write( 6374 (union ctl_io *)ctsio); 6375 } else { 6376 /* 6377 * Someone else has the lock, throw out the request. 6378 */ 6379 ctl_set_already_locked(ctsio); 6380 free(ctsio->kern_data_ptr, M_CTL); 6381 ctl_done((union ctl_io *)ctsio); 6382 6383 /* 6384 * Set the return value so that ctl_do_mode_select() 6385 * won't try to complete the command. We already 6386 * completed it here. 6387 */ 6388 retval = CTL_RETVAL_ERROR; 6389 } 6390 } else if (softc->aps_locked_lun == lun->lun) { 6391 /* 6392 * This LUN is locked, so pass the unlock request to the 6393 * backend. 6394 */ 6395 retval = lun->backend->config_write((union ctl_io *)ctsio); 6396 } 6397 mtx_unlock(&softc->ctl_lock); 6398 6399 return (retval); 6400} 6401 6402int 6403ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6404 struct ctl_page_index *page_index, 6405 uint8_t *page_ptr) 6406{ 6407 uint8_t *c; 6408 int i; 6409 6410 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6411 ctl_time_io_secs = 6412 (c[0] << 8) | 6413 (c[1] << 0) | 6414 0; 6415 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6416 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6417 printf("page data:"); 6418 for (i=0; i<8; i++) 6419 printf(" %.2x",page_ptr[i]); 6420 printf("\n"); 6421 return (0); 6422} 6423 6424int 6425ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6426 struct ctl_page_index *page_index, 6427 int pc) 6428{ 6429 struct copan_debugconf_subpage *page; 6430 6431 page = (struct copan_debugconf_subpage *)page_index->page_data + 6432 (page_index->page_len * pc); 6433 6434 switch (pc) { 6435 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6436 case SMS_PAGE_CTRL_DEFAULT >> 6: 6437 case SMS_PAGE_CTRL_SAVED >> 6: 6438 /* 6439 * We don't update the changable or default bits for this page. 6440 */ 6441 break; 6442 case SMS_PAGE_CTRL_CURRENT >> 6: 6443 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6444 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6445 break; 6446 default: 6447#ifdef NEEDTOPORT 6448 EPRINT(0, "Invalid PC %d!!", pc); 6449#endif /* NEEDTOPORT */ 6450 break; 6451 } 6452 return (0); 6453} 6454 6455 6456static int 6457ctl_do_mode_select(union ctl_io *io) 6458{ 6459 struct scsi_mode_page_header *page_header; 6460 struct ctl_page_index *page_index; 6461 struct ctl_scsiio *ctsio; 6462 int control_dev, page_len; 6463 int page_len_offset, page_len_size; 6464 union ctl_modepage_info *modepage_info; 6465 struct ctl_lun *lun; 6466 int *len_left, *len_used; 6467 int retval, i; 6468 6469 ctsio = &io->scsiio; 6470 page_index = NULL; 6471 page_len = 0; 6472 retval = CTL_RETVAL_COMPLETE; 6473 6474 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6475 6476 if (lun->be_lun->lun_type != T_DIRECT) 6477 control_dev = 1; 6478 else 6479 control_dev = 0; 6480 6481 modepage_info = (union ctl_modepage_info *) 6482 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6483 len_left = &modepage_info->header.len_left; 6484 len_used = &modepage_info->header.len_used; 6485 6486do_next_page: 6487 6488 page_header = (struct scsi_mode_page_header *) 6489 (ctsio->kern_data_ptr + *len_used); 6490 6491 if (*len_left == 0) { 6492 free(ctsio->kern_data_ptr, M_CTL); 6493 ctl_set_success(ctsio); 6494 ctl_done((union ctl_io *)ctsio); 6495 return (CTL_RETVAL_COMPLETE); 6496 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 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 } else if ((page_header->page_code & SMPH_SPF) 6504 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6505 6506 free(ctsio->kern_data_ptr, M_CTL); 6507 ctl_set_param_len_error(ctsio); 6508 ctl_done((union ctl_io *)ctsio); 6509 return (CTL_RETVAL_COMPLETE); 6510 } 6511 6512 6513 /* 6514 * XXX KDM should we do something with the block descriptor? 6515 */ 6516 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6517 6518 if ((control_dev != 0) 6519 && (lun->mode_pages.index[i].page_flags & 6520 CTL_PAGE_FLAG_DISK_ONLY)) 6521 continue; 6522 6523 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6524 (page_header->page_code & SMPH_PC_MASK)) 6525 continue; 6526 6527 /* 6528 * If neither page has a subpage code, then we've got a 6529 * match. 6530 */ 6531 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6532 && ((page_header->page_code & SMPH_SPF) == 0)) { 6533 page_index = &lun->mode_pages.index[i]; 6534 page_len = page_header->page_length; 6535 break; 6536 } 6537 6538 /* 6539 * If both pages have subpages, then the subpage numbers 6540 * have to match. 6541 */ 6542 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6543 && (page_header->page_code & SMPH_SPF)) { 6544 struct scsi_mode_page_header_sp *sph; 6545 6546 sph = (struct scsi_mode_page_header_sp *)page_header; 6547 6548 if (lun->mode_pages.index[i].subpage == 6549 sph->subpage) { 6550 page_index = &lun->mode_pages.index[i]; 6551 page_len = scsi_2btoul(sph->page_length); 6552 break; 6553 } 6554 } 6555 } 6556 6557 /* 6558 * If we couldn't find the page, or if we don't have a mode select 6559 * handler for it, send back an error to the user. 6560 */ 6561 if ((page_index == NULL) 6562 || (page_index->select_handler == NULL)) { 6563 ctl_set_invalid_field(ctsio, 6564 /*sks_valid*/ 1, 6565 /*command*/ 0, 6566 /*field*/ *len_used, 6567 /*bit_valid*/ 0, 6568 /*bit*/ 0); 6569 free(ctsio->kern_data_ptr, M_CTL); 6570 ctl_done((union ctl_io *)ctsio); 6571 return (CTL_RETVAL_COMPLETE); 6572 } 6573 6574 if (page_index->page_code & SMPH_SPF) { 6575 page_len_offset = 2; 6576 page_len_size = 2; 6577 } else { 6578 page_len_size = 1; 6579 page_len_offset = 1; 6580 } 6581 6582 /* 6583 * If the length the initiator gives us isn't the one we specify in 6584 * the mode page header, or if they didn't specify enough data in 6585 * the CDB to avoid truncating this page, kick out the request. 6586 */ 6587 if ((page_len != (page_index->page_len - page_len_offset - 6588 page_len_size)) 6589 || (*len_left < page_index->page_len)) { 6590 6591 6592 ctl_set_invalid_field(ctsio, 6593 /*sks_valid*/ 1, 6594 /*command*/ 0, 6595 /*field*/ *len_used + page_len_offset, 6596 /*bit_valid*/ 0, 6597 /*bit*/ 0); 6598 free(ctsio->kern_data_ptr, M_CTL); 6599 ctl_done((union ctl_io *)ctsio); 6600 return (CTL_RETVAL_COMPLETE); 6601 } 6602 6603 /* 6604 * Run through the mode page, checking to make sure that the bits 6605 * the user changed are actually legal for him to change. 6606 */ 6607 for (i = 0; i < page_index->page_len; i++) { 6608 uint8_t *user_byte, *change_mask, *current_byte; 6609 int bad_bit; 6610 int j; 6611 6612 user_byte = (uint8_t *)page_header + i; 6613 change_mask = page_index->page_data + 6614 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6615 current_byte = page_index->page_data + 6616 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6617 6618 /* 6619 * Check to see whether the user set any bits in this byte 6620 * that he is not allowed to set. 6621 */ 6622 if ((*user_byte & ~(*change_mask)) == 6623 (*current_byte & ~(*change_mask))) 6624 continue; 6625 6626 /* 6627 * Go through bit by bit to determine which one is illegal. 6628 */ 6629 bad_bit = 0; 6630 for (j = 7; j >= 0; j--) { 6631 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6632 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6633 bad_bit = i; 6634 break; 6635 } 6636 } 6637 ctl_set_invalid_field(ctsio, 6638 /*sks_valid*/ 1, 6639 /*command*/ 0, 6640 /*field*/ *len_used + i, 6641 /*bit_valid*/ 1, 6642 /*bit*/ bad_bit); 6643 free(ctsio->kern_data_ptr, M_CTL); 6644 ctl_done((union ctl_io *)ctsio); 6645 return (CTL_RETVAL_COMPLETE); 6646 } 6647 6648 /* 6649 * Decrement these before we call the page handler, since we may 6650 * end up getting called back one way or another before the handler 6651 * returns to this context. 6652 */ 6653 *len_left -= page_index->page_len; 6654 *len_used += page_index->page_len; 6655 6656 retval = page_index->select_handler(ctsio, page_index, 6657 (uint8_t *)page_header); 6658 6659 /* 6660 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6661 * wait until this queued command completes to finish processing 6662 * the mode page. If it returns anything other than 6663 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6664 * already set the sense information, freed the data pointer, and 6665 * completed the io for us. 6666 */ 6667 if (retval != CTL_RETVAL_COMPLETE) 6668 goto bailout_no_done; 6669 6670 /* 6671 * If the initiator sent us more than one page, parse the next one. 6672 */ 6673 if (*len_left > 0) 6674 goto do_next_page; 6675 6676 ctl_set_success(ctsio); 6677 free(ctsio->kern_data_ptr, M_CTL); 6678 ctl_done((union ctl_io *)ctsio); 6679 6680bailout_no_done: 6681 6682 return (CTL_RETVAL_COMPLETE); 6683 6684} 6685 6686int 6687ctl_mode_select(struct ctl_scsiio *ctsio) 6688{ 6689 int param_len, pf, sp; 6690 int header_size, bd_len; 6691 int len_left, len_used; 6692 struct ctl_page_index *page_index; 6693 struct ctl_lun *lun; 6694 int control_dev, page_len; 6695 union ctl_modepage_info *modepage_info; 6696 int retval; 6697 6698 pf = 0; 6699 sp = 0; 6700 page_len = 0; 6701 len_used = 0; 6702 len_left = 0; 6703 retval = 0; 6704 bd_len = 0; 6705 page_index = NULL; 6706 6707 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6708 6709 if (lun->be_lun->lun_type != T_DIRECT) 6710 control_dev = 1; 6711 else 6712 control_dev = 0; 6713 6714 switch (ctsio->cdb[0]) { 6715 case MODE_SELECT_6: { 6716 struct scsi_mode_select_6 *cdb; 6717 6718 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6719 6720 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6721 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6722 6723 param_len = cdb->length; 6724 header_size = sizeof(struct scsi_mode_header_6); 6725 break; 6726 } 6727 case MODE_SELECT_10: { 6728 struct scsi_mode_select_10 *cdb; 6729 6730 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6731 6732 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6733 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6734 6735 param_len = scsi_2btoul(cdb->length); 6736 header_size = sizeof(struct scsi_mode_header_10); 6737 break; 6738 } 6739 default: 6740 ctl_set_invalid_opcode(ctsio); 6741 ctl_done((union ctl_io *)ctsio); 6742 return (CTL_RETVAL_COMPLETE); 6743 break; /* NOTREACHED */ 6744 } 6745 6746 /* 6747 * From SPC-3: 6748 * "A parameter list length of zero indicates that the Data-Out Buffer 6749 * shall be empty. This condition shall not be considered as an error." 6750 */ 6751 if (param_len == 0) { 6752 ctl_set_success(ctsio); 6753 ctl_done((union ctl_io *)ctsio); 6754 return (CTL_RETVAL_COMPLETE); 6755 } 6756 6757 /* 6758 * Since we'll hit this the first time through, prior to 6759 * allocation, we don't need to free a data buffer here. 6760 */ 6761 if (param_len < header_size) { 6762 ctl_set_param_len_error(ctsio); 6763 ctl_done((union ctl_io *)ctsio); 6764 return (CTL_RETVAL_COMPLETE); 6765 } 6766 6767 /* 6768 * Allocate the data buffer and grab the user's data. In theory, 6769 * we shouldn't have to sanity check the parameter list length here 6770 * because the maximum size is 64K. We should be able to malloc 6771 * that much without too many problems. 6772 */ 6773 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6774 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6775 ctsio->kern_data_len = param_len; 6776 ctsio->kern_total_len = param_len; 6777 ctsio->kern_data_resid = 0; 6778 ctsio->kern_rel_offset = 0; 6779 ctsio->kern_sg_entries = 0; 6780 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6781 ctsio->be_move_done = ctl_config_move_done; 6782 ctl_datamove((union ctl_io *)ctsio); 6783 6784 return (CTL_RETVAL_COMPLETE); 6785 } 6786 6787 switch (ctsio->cdb[0]) { 6788 case MODE_SELECT_6: { 6789 struct scsi_mode_header_6 *mh6; 6790 6791 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6792 bd_len = mh6->blk_desc_len; 6793 break; 6794 } 6795 case MODE_SELECT_10: { 6796 struct scsi_mode_header_10 *mh10; 6797 6798 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6799 bd_len = scsi_2btoul(mh10->blk_desc_len); 6800 break; 6801 } 6802 default: 6803 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6804 break; 6805 } 6806 6807 if (param_len < (header_size + bd_len)) { 6808 free(ctsio->kern_data_ptr, M_CTL); 6809 ctl_set_param_len_error(ctsio); 6810 ctl_done((union ctl_io *)ctsio); 6811 return (CTL_RETVAL_COMPLETE); 6812 } 6813 6814 /* 6815 * Set the IO_CONT flag, so that if this I/O gets passed to 6816 * ctl_config_write_done(), it'll get passed back to 6817 * ctl_do_mode_select() for further processing, or completion if 6818 * we're all done. 6819 */ 6820 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6821 ctsio->io_cont = ctl_do_mode_select; 6822 6823 modepage_info = (union ctl_modepage_info *) 6824 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6825 6826 memset(modepage_info, 0, sizeof(*modepage_info)); 6827 6828 len_left = param_len - header_size - bd_len; 6829 len_used = header_size + bd_len; 6830 6831 modepage_info->header.len_left = len_left; 6832 modepage_info->header.len_used = len_used; 6833 6834 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6835} 6836 6837int 6838ctl_mode_sense(struct ctl_scsiio *ctsio) 6839{ 6840 struct ctl_lun *lun; 6841 int pc, page_code, dbd, llba, subpage; 6842 int alloc_len, page_len, header_len, total_len; 6843 struct scsi_mode_block_descr *block_desc; 6844 struct ctl_page_index *page_index; 6845 int control_dev; 6846 6847 dbd = 0; 6848 llba = 0; 6849 block_desc = NULL; 6850 page_index = NULL; 6851 6852 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6853 6854 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6855 6856 if (lun->be_lun->lun_type != T_DIRECT) 6857 control_dev = 1; 6858 else 6859 control_dev = 0; 6860 6861 if (lun->flags & CTL_LUN_PR_RESERVED) { 6862 uint32_t residx; 6863 6864 /* 6865 * XXX KDM need a lock here. 6866 */ 6867 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6868 if ((lun->res_type == SPR_TYPE_EX_AC 6869 && residx != lun->pr_res_idx) 6870 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6871 || lun->res_type == SPR_TYPE_EX_AC_AR) 6872 && !lun->per_res[residx].registered)) { 6873 ctl_set_reservation_conflict(ctsio); 6874 ctl_done((union ctl_io *)ctsio); 6875 return (CTL_RETVAL_COMPLETE); 6876 } 6877 } 6878 6879 switch (ctsio->cdb[0]) { 6880 case MODE_SENSE_6: { 6881 struct scsi_mode_sense_6 *cdb; 6882 6883 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6884 6885 header_len = sizeof(struct scsi_mode_hdr_6); 6886 if (cdb->byte2 & SMS_DBD) 6887 dbd = 1; 6888 else 6889 header_len += sizeof(struct scsi_mode_block_descr); 6890 6891 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6892 page_code = cdb->page & SMS_PAGE_CODE; 6893 subpage = cdb->subpage; 6894 alloc_len = cdb->length; 6895 break; 6896 } 6897 case MODE_SENSE_10: { 6898 struct scsi_mode_sense_10 *cdb; 6899 6900 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6901 6902 header_len = sizeof(struct scsi_mode_hdr_10); 6903 6904 if (cdb->byte2 & SMS_DBD) 6905 dbd = 1; 6906 else 6907 header_len += sizeof(struct scsi_mode_block_descr); 6908 if (cdb->byte2 & SMS10_LLBAA) 6909 llba = 1; 6910 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6911 page_code = cdb->page & SMS_PAGE_CODE; 6912 subpage = cdb->subpage; 6913 alloc_len = scsi_2btoul(cdb->length); 6914 break; 6915 } 6916 default: 6917 ctl_set_invalid_opcode(ctsio); 6918 ctl_done((union ctl_io *)ctsio); 6919 return (CTL_RETVAL_COMPLETE); 6920 break; /* NOTREACHED */ 6921 } 6922 6923 /* 6924 * We have to make a first pass through to calculate the size of 6925 * the pages that match the user's query. Then we allocate enough 6926 * memory to hold it, and actually copy the data into the buffer. 6927 */ 6928 switch (page_code) { 6929 case SMS_ALL_PAGES_PAGE: { 6930 int i; 6931 6932 page_len = 0; 6933 6934 /* 6935 * At the moment, values other than 0 and 0xff here are 6936 * reserved according to SPC-3. 6937 */ 6938 if ((subpage != SMS_SUBPAGE_PAGE_0) 6939 && (subpage != SMS_SUBPAGE_ALL)) { 6940 ctl_set_invalid_field(ctsio, 6941 /*sks_valid*/ 1, 6942 /*command*/ 1, 6943 /*field*/ 3, 6944 /*bit_valid*/ 0, 6945 /*bit*/ 0); 6946 ctl_done((union ctl_io *)ctsio); 6947 return (CTL_RETVAL_COMPLETE); 6948 } 6949 6950 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6951 if ((control_dev != 0) 6952 && (lun->mode_pages.index[i].page_flags & 6953 CTL_PAGE_FLAG_DISK_ONLY)) 6954 continue; 6955 6956 /* 6957 * We don't use this subpage if the user didn't 6958 * request all subpages. 6959 */ 6960 if ((lun->mode_pages.index[i].subpage != 0) 6961 && (subpage == SMS_SUBPAGE_PAGE_0)) 6962 continue; 6963 6964#if 0 6965 printf("found page %#x len %d\n", 6966 lun->mode_pages.index[i].page_code & 6967 SMPH_PC_MASK, 6968 lun->mode_pages.index[i].page_len); 6969#endif 6970 page_len += lun->mode_pages.index[i].page_len; 6971 } 6972 break; 6973 } 6974 default: { 6975 int i; 6976 6977 page_len = 0; 6978 6979 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6980 /* Look for the right page code */ 6981 if ((lun->mode_pages.index[i].page_code & 6982 SMPH_PC_MASK) != page_code) 6983 continue; 6984 6985 /* Look for the right subpage or the subpage wildcard*/ 6986 if ((lun->mode_pages.index[i].subpage != subpage) 6987 && (subpage != SMS_SUBPAGE_ALL)) 6988 continue; 6989 6990 /* Make sure the page is supported for this dev type */ 6991 if ((control_dev != 0) 6992 && (lun->mode_pages.index[i].page_flags & 6993 CTL_PAGE_FLAG_DISK_ONLY)) 6994 continue; 6995 6996#if 0 6997 printf("found page %#x len %d\n", 6998 lun->mode_pages.index[i].page_code & 6999 SMPH_PC_MASK, 7000 lun->mode_pages.index[i].page_len); 7001#endif 7002 7003 page_len += lun->mode_pages.index[i].page_len; 7004 } 7005 7006 if (page_len == 0) { 7007 ctl_set_invalid_field(ctsio, 7008 /*sks_valid*/ 1, 7009 /*command*/ 1, 7010 /*field*/ 2, 7011 /*bit_valid*/ 1, 7012 /*bit*/ 5); 7013 ctl_done((union ctl_io *)ctsio); 7014 return (CTL_RETVAL_COMPLETE); 7015 } 7016 break; 7017 } 7018 } 7019 7020 total_len = header_len + page_len; 7021#if 0 7022 printf("header_len = %d, page_len = %d, total_len = %d\n", 7023 header_len, page_len, total_len); 7024#endif 7025 7026 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7027 ctsio->kern_sg_entries = 0; 7028 ctsio->kern_data_resid = 0; 7029 ctsio->kern_rel_offset = 0; 7030 if (total_len < alloc_len) { 7031 ctsio->residual = alloc_len - total_len; 7032 ctsio->kern_data_len = total_len; 7033 ctsio->kern_total_len = total_len; 7034 } else { 7035 ctsio->residual = 0; 7036 ctsio->kern_data_len = alloc_len; 7037 ctsio->kern_total_len = alloc_len; 7038 } 7039 7040 switch (ctsio->cdb[0]) { 7041 case MODE_SENSE_6: { 7042 struct scsi_mode_hdr_6 *header; 7043 7044 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7045 7046 header->datalen = ctl_min(total_len - 1, 254); 7047 if (control_dev == 0) 7048 header->dev_specific = 0x10; /* DPOFUA */ 7049 if (dbd) 7050 header->block_descr_len = 0; 7051 else 7052 header->block_descr_len = 7053 sizeof(struct scsi_mode_block_descr); 7054 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7055 break; 7056 } 7057 case MODE_SENSE_10: { 7058 struct scsi_mode_hdr_10 *header; 7059 int datalen; 7060 7061 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7062 7063 datalen = ctl_min(total_len - 2, 65533); 7064 scsi_ulto2b(datalen, header->datalen); 7065 if (control_dev == 0) 7066 header->dev_specific = 0x10; /* DPOFUA */ 7067 if (dbd) 7068 scsi_ulto2b(0, header->block_descr_len); 7069 else 7070 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7071 header->block_descr_len); 7072 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7073 break; 7074 } 7075 default: 7076 panic("invalid CDB type %#x", ctsio->cdb[0]); 7077 break; /* NOTREACHED */ 7078 } 7079 7080 /* 7081 * If we've got a disk, use its blocksize in the block 7082 * descriptor. Otherwise, just set it to 0. 7083 */ 7084 if (dbd == 0) { 7085 if (control_dev == 0) 7086 scsi_ulto3b(lun->be_lun->blocksize, 7087 block_desc->block_len); 7088 else 7089 scsi_ulto3b(0, block_desc->block_len); 7090 } 7091 7092 switch (page_code) { 7093 case SMS_ALL_PAGES_PAGE: { 7094 int i, data_used; 7095 7096 data_used = header_len; 7097 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7098 struct ctl_page_index *page_index; 7099 7100 page_index = &lun->mode_pages.index[i]; 7101 7102 if ((control_dev != 0) 7103 && (page_index->page_flags & 7104 CTL_PAGE_FLAG_DISK_ONLY)) 7105 continue; 7106 7107 /* 7108 * We don't use this subpage if the user didn't 7109 * request all subpages. We already checked (above) 7110 * to make sure the user only specified a subpage 7111 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7112 */ 7113 if ((page_index->subpage != 0) 7114 && (subpage == SMS_SUBPAGE_PAGE_0)) 7115 continue; 7116 7117 /* 7118 * Call the handler, if it exists, to update the 7119 * page to the latest values. 7120 */ 7121 if (page_index->sense_handler != NULL) 7122 page_index->sense_handler(ctsio, page_index,pc); 7123 7124 memcpy(ctsio->kern_data_ptr + data_used, 7125 page_index->page_data + 7126 (page_index->page_len * pc), 7127 page_index->page_len); 7128 data_used += page_index->page_len; 7129 } 7130 break; 7131 } 7132 default: { 7133 int i, data_used; 7134 7135 data_used = header_len; 7136 7137 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7138 struct ctl_page_index *page_index; 7139 7140 page_index = &lun->mode_pages.index[i]; 7141 7142 /* Look for the right page code */ 7143 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7144 continue; 7145 7146 /* Look for the right subpage or the subpage wildcard*/ 7147 if ((page_index->subpage != subpage) 7148 && (subpage != SMS_SUBPAGE_ALL)) 7149 continue; 7150 7151 /* Make sure the page is supported for this dev type */ 7152 if ((control_dev != 0) 7153 && (page_index->page_flags & 7154 CTL_PAGE_FLAG_DISK_ONLY)) 7155 continue; 7156 7157 /* 7158 * Call the handler, if it exists, to update the 7159 * page to the latest values. 7160 */ 7161 if (page_index->sense_handler != NULL) 7162 page_index->sense_handler(ctsio, page_index,pc); 7163 7164 memcpy(ctsio->kern_data_ptr + data_used, 7165 page_index->page_data + 7166 (page_index->page_len * pc), 7167 page_index->page_len); 7168 data_used += page_index->page_len; 7169 } 7170 break; 7171 } 7172 } 7173 7174 ctsio->scsi_status = SCSI_STATUS_OK; 7175 7176 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7177 ctsio->be_move_done = ctl_config_move_done; 7178 ctl_datamove((union ctl_io *)ctsio); 7179 7180 return (CTL_RETVAL_COMPLETE); 7181} 7182 7183int 7184ctl_read_capacity(struct ctl_scsiio *ctsio) 7185{ 7186 struct scsi_read_capacity *cdb; 7187 struct scsi_read_capacity_data *data; 7188 struct ctl_lun *lun; 7189 uint32_t lba; 7190 7191 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7192 7193 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7194 7195 lba = scsi_4btoul(cdb->addr); 7196 if (((cdb->pmi & SRC_PMI) == 0) 7197 && (lba != 0)) { 7198 ctl_set_invalid_field(/*ctsio*/ ctsio, 7199 /*sks_valid*/ 1, 7200 /*command*/ 1, 7201 /*field*/ 2, 7202 /*bit_valid*/ 0, 7203 /*bit*/ 0); 7204 ctl_done((union ctl_io *)ctsio); 7205 return (CTL_RETVAL_COMPLETE); 7206 } 7207 7208 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7209 7210 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7211 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7212 ctsio->residual = 0; 7213 ctsio->kern_data_len = sizeof(*data); 7214 ctsio->kern_total_len = sizeof(*data); 7215 ctsio->kern_data_resid = 0; 7216 ctsio->kern_rel_offset = 0; 7217 ctsio->kern_sg_entries = 0; 7218 7219 /* 7220 * If the maximum LBA is greater than 0xfffffffe, the user must 7221 * issue a SERVICE ACTION IN (16) command, with the read capacity 7222 * serivce action set. 7223 */ 7224 if (lun->be_lun->maxlba > 0xfffffffe) 7225 scsi_ulto4b(0xffffffff, data->addr); 7226 else 7227 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7228 7229 /* 7230 * XXX KDM this may not be 512 bytes... 7231 */ 7232 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7233 7234 ctsio->scsi_status = SCSI_STATUS_OK; 7235 7236 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7237 ctsio->be_move_done = ctl_config_move_done; 7238 ctl_datamove((union ctl_io *)ctsio); 7239 7240 return (CTL_RETVAL_COMPLETE); 7241} 7242 7243int 7244ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7245{ 7246 struct scsi_read_capacity_16 *cdb; 7247 struct scsi_read_capacity_data_long *data; 7248 struct ctl_lun *lun; 7249 uint64_t lba; 7250 uint32_t alloc_len; 7251 7252 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7253 7254 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7255 7256 alloc_len = scsi_4btoul(cdb->alloc_len); 7257 lba = scsi_8btou64(cdb->addr); 7258 7259 if ((cdb->reladr & SRC16_PMI) 7260 && (lba != 0)) { 7261 ctl_set_invalid_field(/*ctsio*/ ctsio, 7262 /*sks_valid*/ 1, 7263 /*command*/ 1, 7264 /*field*/ 2, 7265 /*bit_valid*/ 0, 7266 /*bit*/ 0); 7267 ctl_done((union ctl_io *)ctsio); 7268 return (CTL_RETVAL_COMPLETE); 7269 } 7270 7271 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7272 7273 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7274 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7275 7276 if (sizeof(*data) < alloc_len) { 7277 ctsio->residual = alloc_len - sizeof(*data); 7278 ctsio->kern_data_len = sizeof(*data); 7279 ctsio->kern_total_len = sizeof(*data); 7280 } else { 7281 ctsio->residual = 0; 7282 ctsio->kern_data_len = alloc_len; 7283 ctsio->kern_total_len = alloc_len; 7284 } 7285 ctsio->kern_data_resid = 0; 7286 ctsio->kern_rel_offset = 0; 7287 ctsio->kern_sg_entries = 0; 7288 7289 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7290 /* XXX KDM this may not be 512 bytes... */ 7291 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7292 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7293 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7294 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7295 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7296 7297 ctsio->scsi_status = SCSI_STATUS_OK; 7298 7299 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7300 ctsio->be_move_done = ctl_config_move_done; 7301 ctl_datamove((union ctl_io *)ctsio); 7302 7303 return (CTL_RETVAL_COMPLETE); 7304} 7305 7306int 7307ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7308{ 7309 struct scsi_maintenance_in *cdb; 7310 int retval; 7311 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7312 int num_target_port_groups, num_target_ports, single; 7313 struct ctl_lun *lun; 7314 struct ctl_softc *softc; 7315 struct ctl_port *port; 7316 struct scsi_target_group_data *rtg_ptr; 7317 struct scsi_target_group_data_extended *rtg_ext_ptr; 7318 struct scsi_target_port_group_descriptor *tpg_desc; 7319 7320 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7321 7322 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7323 softc = control_softc; 7324 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7325 7326 retval = CTL_RETVAL_COMPLETE; 7327 7328 switch (cdb->byte2 & STG_PDF_MASK) { 7329 case STG_PDF_LENGTH: 7330 ext = 0; 7331 break; 7332 case STG_PDF_EXTENDED: 7333 ext = 1; 7334 break; 7335 default: 7336 ctl_set_invalid_field(/*ctsio*/ ctsio, 7337 /*sks_valid*/ 1, 7338 /*command*/ 1, 7339 /*field*/ 2, 7340 /*bit_valid*/ 1, 7341 /*bit*/ 5); 7342 ctl_done((union ctl_io *)ctsio); 7343 return(retval); 7344 } 7345 7346 single = ctl_is_single; 7347 if (single) 7348 num_target_port_groups = 1; 7349 else 7350 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7351 num_target_ports = 0; 7352 mtx_lock(&softc->ctl_lock); 7353 STAILQ_FOREACH(port, &softc->port_list, links) { 7354 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7355 continue; 7356 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7357 continue; 7358 num_target_ports++; 7359 } 7360 mtx_unlock(&softc->ctl_lock); 7361 7362 if (ext) 7363 total_len = sizeof(struct scsi_target_group_data_extended); 7364 else 7365 total_len = sizeof(struct scsi_target_group_data); 7366 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7367 num_target_port_groups + 7368 sizeof(struct scsi_target_port_descriptor) * 7369 num_target_ports * num_target_port_groups; 7370 7371 alloc_len = scsi_4btoul(cdb->length); 7372 7373 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7374 7375 ctsio->kern_sg_entries = 0; 7376 7377 if (total_len < alloc_len) { 7378 ctsio->residual = alloc_len - total_len; 7379 ctsio->kern_data_len = total_len; 7380 ctsio->kern_total_len = total_len; 7381 } else { 7382 ctsio->residual = 0; 7383 ctsio->kern_data_len = alloc_len; 7384 ctsio->kern_total_len = alloc_len; 7385 } 7386 ctsio->kern_data_resid = 0; 7387 ctsio->kern_rel_offset = 0; 7388 7389 if (ext) { 7390 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7391 ctsio->kern_data_ptr; 7392 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7393 rtg_ext_ptr->format_type = 0x10; 7394 rtg_ext_ptr->implicit_transition_time = 0; 7395 tpg_desc = &rtg_ext_ptr->groups[0]; 7396 } else { 7397 rtg_ptr = (struct scsi_target_group_data *) 7398 ctsio->kern_data_ptr; 7399 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7400 tpg_desc = &rtg_ptr->groups[0]; 7401 } 7402 7403 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7404 mtx_lock(&softc->ctl_lock); 7405 for (g = 0; g < num_target_port_groups; g++) { 7406 if (g == pg) 7407 tpg_desc->pref_state = TPG_PRIMARY | 7408 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7409 else 7410 tpg_desc->pref_state = 7411 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7412 tpg_desc->support = TPG_AO_SUP; 7413 if (!single) 7414 tpg_desc->support |= TPG_AN_SUP; 7415 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7416 tpg_desc->status = TPG_IMPLICIT; 7417 pc = 0; 7418 STAILQ_FOREACH(port, &softc->port_list, links) { 7419 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7420 continue; 7421 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7422 CTL_MAX_LUNS) 7423 continue; 7424 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7425 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7426 relative_target_port_identifier); 7427 pc++; 7428 } 7429 tpg_desc->target_port_count = pc; 7430 tpg_desc = (struct scsi_target_port_group_descriptor *) 7431 &tpg_desc->descriptors[pc]; 7432 } 7433 mtx_unlock(&softc->ctl_lock); 7434 7435 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7436 ctsio->be_move_done = ctl_config_move_done; 7437 7438 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7439 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7440 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7441 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7442 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7443 7444 ctl_datamove((union ctl_io *)ctsio); 7445 return(retval); 7446} 7447 7448int 7449ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7450{ 7451 struct ctl_lun *lun; 7452 struct scsi_report_supported_opcodes *cdb; 7453 const struct ctl_cmd_entry *entry, *sentry; 7454 struct scsi_report_supported_opcodes_all *all; 7455 struct scsi_report_supported_opcodes_descr *descr; 7456 struct scsi_report_supported_opcodes_one *one; 7457 int retval; 7458 int alloc_len, total_len; 7459 int opcode, service_action, i, j, num; 7460 7461 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7462 7463 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7464 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7465 7466 retval = CTL_RETVAL_COMPLETE; 7467 7468 opcode = cdb->requested_opcode; 7469 service_action = scsi_2btoul(cdb->requested_service_action); 7470 switch (cdb->options & RSO_OPTIONS_MASK) { 7471 case RSO_OPTIONS_ALL: 7472 num = 0; 7473 for (i = 0; i < 256; i++) { 7474 entry = &ctl_cmd_table[i]; 7475 if (entry->flags & CTL_CMD_FLAG_SA5) { 7476 for (j = 0; j < 32; j++) { 7477 sentry = &((const struct ctl_cmd_entry *) 7478 entry->execute)[j]; 7479 if (ctl_cmd_applicable( 7480 lun->be_lun->lun_type, sentry)) 7481 num++; 7482 } 7483 } else { 7484 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7485 entry)) 7486 num++; 7487 } 7488 } 7489 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7490 num * sizeof(struct scsi_report_supported_opcodes_descr); 7491 break; 7492 case RSO_OPTIONS_OC: 7493 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7494 ctl_set_invalid_field(/*ctsio*/ ctsio, 7495 /*sks_valid*/ 1, 7496 /*command*/ 1, 7497 /*field*/ 2, 7498 /*bit_valid*/ 1, 7499 /*bit*/ 2); 7500 ctl_done((union ctl_io *)ctsio); 7501 return (CTL_RETVAL_COMPLETE); 7502 } 7503 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7504 break; 7505 case RSO_OPTIONS_OC_SA: 7506 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7507 service_action >= 32) { 7508 ctl_set_invalid_field(/*ctsio*/ ctsio, 7509 /*sks_valid*/ 1, 7510 /*command*/ 1, 7511 /*field*/ 2, 7512 /*bit_valid*/ 1, 7513 /*bit*/ 2); 7514 ctl_done((union ctl_io *)ctsio); 7515 return (CTL_RETVAL_COMPLETE); 7516 } 7517 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7518 break; 7519 default: 7520 ctl_set_invalid_field(/*ctsio*/ ctsio, 7521 /*sks_valid*/ 1, 7522 /*command*/ 1, 7523 /*field*/ 2, 7524 /*bit_valid*/ 1, 7525 /*bit*/ 2); 7526 ctl_done((union ctl_io *)ctsio); 7527 return (CTL_RETVAL_COMPLETE); 7528 } 7529 7530 alloc_len = scsi_4btoul(cdb->length); 7531 7532 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7533 7534 ctsio->kern_sg_entries = 0; 7535 7536 if (total_len < alloc_len) { 7537 ctsio->residual = alloc_len - total_len; 7538 ctsio->kern_data_len = total_len; 7539 ctsio->kern_total_len = total_len; 7540 } else { 7541 ctsio->residual = 0; 7542 ctsio->kern_data_len = alloc_len; 7543 ctsio->kern_total_len = alloc_len; 7544 } 7545 ctsio->kern_data_resid = 0; 7546 ctsio->kern_rel_offset = 0; 7547 7548 switch (cdb->options & RSO_OPTIONS_MASK) { 7549 case RSO_OPTIONS_ALL: 7550 all = (struct scsi_report_supported_opcodes_all *) 7551 ctsio->kern_data_ptr; 7552 num = 0; 7553 for (i = 0; i < 256; i++) { 7554 entry = &ctl_cmd_table[i]; 7555 if (entry->flags & CTL_CMD_FLAG_SA5) { 7556 for (j = 0; j < 32; j++) { 7557 sentry = &((const struct ctl_cmd_entry *) 7558 entry->execute)[j]; 7559 if (!ctl_cmd_applicable( 7560 lun->be_lun->lun_type, sentry)) 7561 continue; 7562 descr = &all->descr[num++]; 7563 descr->opcode = i; 7564 scsi_ulto2b(j, descr->service_action); 7565 descr->flags = RSO_SERVACTV; 7566 scsi_ulto2b(sentry->length, 7567 descr->cdb_length); 7568 } 7569 } else { 7570 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7571 entry)) 7572 continue; 7573 descr = &all->descr[num++]; 7574 descr->opcode = i; 7575 scsi_ulto2b(0, descr->service_action); 7576 descr->flags = 0; 7577 scsi_ulto2b(entry->length, descr->cdb_length); 7578 } 7579 } 7580 scsi_ulto4b( 7581 num * sizeof(struct scsi_report_supported_opcodes_descr), 7582 all->length); 7583 break; 7584 case RSO_OPTIONS_OC: 7585 one = (struct scsi_report_supported_opcodes_one *) 7586 ctsio->kern_data_ptr; 7587 entry = &ctl_cmd_table[opcode]; 7588 goto fill_one; 7589 case RSO_OPTIONS_OC_SA: 7590 one = (struct scsi_report_supported_opcodes_one *) 7591 ctsio->kern_data_ptr; 7592 entry = &ctl_cmd_table[opcode]; 7593 entry = &((const struct ctl_cmd_entry *) 7594 entry->execute)[service_action]; 7595fill_one: 7596 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7597 one->support = 3; 7598 scsi_ulto2b(entry->length, one->cdb_length); 7599 one->cdb_usage[0] = opcode; 7600 memcpy(&one->cdb_usage[1], entry->usage, 7601 entry->length - 1); 7602 } else 7603 one->support = 1; 7604 break; 7605 } 7606 7607 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7608 ctsio->be_move_done = ctl_config_move_done; 7609 7610 ctl_datamove((union ctl_io *)ctsio); 7611 return(retval); 7612} 7613 7614int 7615ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7616{ 7617 struct ctl_lun *lun; 7618 struct scsi_report_supported_tmf *cdb; 7619 struct scsi_report_supported_tmf_data *data; 7620 int retval; 7621 int alloc_len, total_len; 7622 7623 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7624 7625 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7626 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7627 7628 retval = CTL_RETVAL_COMPLETE; 7629 7630 total_len = sizeof(struct scsi_report_supported_tmf_data); 7631 alloc_len = scsi_4btoul(cdb->length); 7632 7633 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7634 7635 ctsio->kern_sg_entries = 0; 7636 7637 if (total_len < alloc_len) { 7638 ctsio->residual = alloc_len - total_len; 7639 ctsio->kern_data_len = total_len; 7640 ctsio->kern_total_len = total_len; 7641 } else { 7642 ctsio->residual = 0; 7643 ctsio->kern_data_len = alloc_len; 7644 ctsio->kern_total_len = alloc_len; 7645 } 7646 ctsio->kern_data_resid = 0; 7647 ctsio->kern_rel_offset = 0; 7648 7649 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7650 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7651 data->byte2 |= RST_ITNRS; 7652 7653 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7654 ctsio->be_move_done = ctl_config_move_done; 7655 7656 ctl_datamove((union ctl_io *)ctsio); 7657 return (retval); 7658} 7659 7660int 7661ctl_report_timestamp(struct ctl_scsiio *ctsio) 7662{ 7663 struct ctl_lun *lun; 7664 struct scsi_report_timestamp *cdb; 7665 struct scsi_report_timestamp_data *data; 7666 struct timeval tv; 7667 int64_t timestamp; 7668 int retval; 7669 int alloc_len, total_len; 7670 7671 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7672 7673 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7674 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7675 7676 retval = CTL_RETVAL_COMPLETE; 7677 7678 total_len = sizeof(struct scsi_report_timestamp_data); 7679 alloc_len = scsi_4btoul(cdb->length); 7680 7681 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7682 7683 ctsio->kern_sg_entries = 0; 7684 7685 if (total_len < alloc_len) { 7686 ctsio->residual = alloc_len - total_len; 7687 ctsio->kern_data_len = total_len; 7688 ctsio->kern_total_len = total_len; 7689 } else { 7690 ctsio->residual = 0; 7691 ctsio->kern_data_len = alloc_len; 7692 ctsio->kern_total_len = alloc_len; 7693 } 7694 ctsio->kern_data_resid = 0; 7695 ctsio->kern_rel_offset = 0; 7696 7697 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7698 scsi_ulto2b(sizeof(*data) - 2, data->length); 7699 data->origin = RTS_ORIG_OUTSIDE; 7700 getmicrotime(&tv); 7701 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7702 scsi_ulto4b(timestamp >> 16, data->timestamp); 7703 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7704 7705 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7706 ctsio->be_move_done = ctl_config_move_done; 7707 7708 ctl_datamove((union ctl_io *)ctsio); 7709 return (retval); 7710} 7711 7712int 7713ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7714{ 7715 struct scsi_per_res_in *cdb; 7716 int alloc_len, total_len = 0; 7717 /* struct scsi_per_res_in_rsrv in_data; */ 7718 struct ctl_lun *lun; 7719 struct ctl_softc *softc; 7720 7721 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7722 7723 softc = control_softc; 7724 7725 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7726 7727 alloc_len = scsi_2btoul(cdb->length); 7728 7729 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7730 7731retry: 7732 mtx_lock(&lun->lun_lock); 7733 switch (cdb->action) { 7734 case SPRI_RK: /* read keys */ 7735 total_len = sizeof(struct scsi_per_res_in_keys) + 7736 lun->pr_key_count * 7737 sizeof(struct scsi_per_res_key); 7738 break; 7739 case SPRI_RR: /* read reservation */ 7740 if (lun->flags & CTL_LUN_PR_RESERVED) 7741 total_len = sizeof(struct scsi_per_res_in_rsrv); 7742 else 7743 total_len = sizeof(struct scsi_per_res_in_header); 7744 break; 7745 case SPRI_RC: /* report capabilities */ 7746 total_len = sizeof(struct scsi_per_res_cap); 7747 break; 7748 case SPRI_RS: /* read full status */ 7749 total_len = sizeof(struct scsi_per_res_in_header) + 7750 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7751 lun->pr_key_count; 7752 break; 7753 default: 7754 panic("Invalid PR type %x", cdb->action); 7755 } 7756 mtx_unlock(&lun->lun_lock); 7757 7758 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7759 7760 if (total_len < alloc_len) { 7761 ctsio->residual = alloc_len - total_len; 7762 ctsio->kern_data_len = total_len; 7763 ctsio->kern_total_len = total_len; 7764 } else { 7765 ctsio->residual = 0; 7766 ctsio->kern_data_len = alloc_len; 7767 ctsio->kern_total_len = alloc_len; 7768 } 7769 7770 ctsio->kern_data_resid = 0; 7771 ctsio->kern_rel_offset = 0; 7772 ctsio->kern_sg_entries = 0; 7773 7774 mtx_lock(&lun->lun_lock); 7775 switch (cdb->action) { 7776 case SPRI_RK: { // read keys 7777 struct scsi_per_res_in_keys *res_keys; 7778 int i, key_count; 7779 7780 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7781 7782 /* 7783 * We had to drop the lock to allocate our buffer, which 7784 * leaves time for someone to come in with another 7785 * persistent reservation. (That is unlikely, though, 7786 * since this should be the only persistent reservation 7787 * command active right now.) 7788 */ 7789 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7790 (lun->pr_key_count * 7791 sizeof(struct scsi_per_res_key)))){ 7792 mtx_unlock(&lun->lun_lock); 7793 free(ctsio->kern_data_ptr, M_CTL); 7794 printf("%s: reservation length changed, retrying\n", 7795 __func__); 7796 goto retry; 7797 } 7798 7799 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7800 7801 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7802 lun->pr_key_count, res_keys->header.length); 7803 7804 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7805 if (!lun->per_res[i].registered) 7806 continue; 7807 7808 /* 7809 * We used lun->pr_key_count to calculate the 7810 * size to allocate. If it turns out the number of 7811 * initiators with the registered flag set is 7812 * larger than that (i.e. they haven't been kept in 7813 * sync), we've got a problem. 7814 */ 7815 if (key_count >= lun->pr_key_count) { 7816#ifdef NEEDTOPORT 7817 csevent_log(CSC_CTL | CSC_SHELF_SW | 7818 CTL_PR_ERROR, 7819 csevent_LogType_Fault, 7820 csevent_AlertLevel_Yellow, 7821 csevent_FRU_ShelfController, 7822 csevent_FRU_Firmware, 7823 csevent_FRU_Unknown, 7824 "registered keys %d >= key " 7825 "count %d", key_count, 7826 lun->pr_key_count); 7827#endif 7828 key_count++; 7829 continue; 7830 } 7831 memcpy(res_keys->keys[key_count].key, 7832 lun->per_res[i].res_key.key, 7833 ctl_min(sizeof(res_keys->keys[key_count].key), 7834 sizeof(lun->per_res[i].res_key))); 7835 key_count++; 7836 } 7837 break; 7838 } 7839 case SPRI_RR: { // read reservation 7840 struct scsi_per_res_in_rsrv *res; 7841 int tmp_len, header_only; 7842 7843 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7844 7845 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7846 7847 if (lun->flags & CTL_LUN_PR_RESERVED) 7848 { 7849 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7850 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7851 res->header.length); 7852 header_only = 0; 7853 } else { 7854 tmp_len = sizeof(struct scsi_per_res_in_header); 7855 scsi_ulto4b(0, res->header.length); 7856 header_only = 1; 7857 } 7858 7859 /* 7860 * We had to drop the lock to allocate our buffer, which 7861 * leaves time for someone to come in with another 7862 * persistent reservation. (That is unlikely, though, 7863 * since this should be the only persistent reservation 7864 * command active right now.) 7865 */ 7866 if (tmp_len != total_len) { 7867 mtx_unlock(&lun->lun_lock); 7868 free(ctsio->kern_data_ptr, M_CTL); 7869 printf("%s: reservation status changed, retrying\n", 7870 __func__); 7871 goto retry; 7872 } 7873 7874 /* 7875 * No reservation held, so we're done. 7876 */ 7877 if (header_only != 0) 7878 break; 7879 7880 /* 7881 * If the registration is an All Registrants type, the key 7882 * is 0, since it doesn't really matter. 7883 */ 7884 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7885 memcpy(res->data.reservation, 7886 &lun->per_res[lun->pr_res_idx].res_key, 7887 sizeof(struct scsi_per_res_key)); 7888 } 7889 res->data.scopetype = lun->res_type; 7890 break; 7891 } 7892 case SPRI_RC: //report capabilities 7893 { 7894 struct scsi_per_res_cap *res_cap; 7895 uint16_t type_mask; 7896 7897 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7898 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7899 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7900 type_mask = SPRI_TM_WR_EX_AR | 7901 SPRI_TM_EX_AC_RO | 7902 SPRI_TM_WR_EX_RO | 7903 SPRI_TM_EX_AC | 7904 SPRI_TM_WR_EX | 7905 SPRI_TM_EX_AC_AR; 7906 scsi_ulto2b(type_mask, res_cap->type_mask); 7907 break; 7908 } 7909 case SPRI_RS: { // read full status 7910 struct scsi_per_res_in_full *res_status; 7911 struct scsi_per_res_in_full_desc *res_desc; 7912 struct ctl_port *port; 7913 int i, len; 7914 7915 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7916 7917 /* 7918 * We had to drop the lock to allocate our buffer, which 7919 * leaves time for someone to come in with another 7920 * persistent reservation. (That is unlikely, though, 7921 * since this should be the only persistent reservation 7922 * command active right now.) 7923 */ 7924 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7925 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7926 lun->pr_key_count)){ 7927 mtx_unlock(&lun->lun_lock); 7928 free(ctsio->kern_data_ptr, M_CTL); 7929 printf("%s: reservation length changed, retrying\n", 7930 __func__); 7931 goto retry; 7932 } 7933 7934 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7935 7936 res_desc = &res_status->desc[0]; 7937 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7938 if (!lun->per_res[i].registered) 7939 continue; 7940 7941 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7942 sizeof(res_desc->res_key)); 7943 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7944 (lun->pr_res_idx == i || 7945 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7946 res_desc->flags = SPRI_FULL_R_HOLDER; 7947 res_desc->scopetype = lun->res_type; 7948 } 7949 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7950 res_desc->rel_trgt_port_id); 7951 len = 0; 7952 port = softc->ctl_ports[ 7953 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7954 if (port != NULL) 7955 len = ctl_create_iid(port, 7956 i % CTL_MAX_INIT_PER_PORT, 7957 res_desc->transport_id); 7958 scsi_ulto4b(len, res_desc->additional_length); 7959 res_desc = (struct scsi_per_res_in_full_desc *) 7960 &res_desc->transport_id[len]; 7961 } 7962 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7963 res_status->header.length); 7964 break; 7965 } 7966 default: 7967 /* 7968 * This is a bug, because we just checked for this above, 7969 * and should have returned an error. 7970 */ 7971 panic("Invalid PR type %x", cdb->action); 7972 break; /* NOTREACHED */ 7973 } 7974 mtx_unlock(&lun->lun_lock); 7975 7976 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7977 ctsio->be_move_done = ctl_config_move_done; 7978 7979 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7980 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7981 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7982 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7983 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7984 7985 ctl_datamove((union ctl_io *)ctsio); 7986 7987 return (CTL_RETVAL_COMPLETE); 7988} 7989 7990/* 7991 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7992 * it should return. 7993 */ 7994static int 7995ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7996 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7997 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7998 struct scsi_per_res_out_parms* param) 7999{ 8000 union ctl_ha_msg persis_io; 8001 int retval, i; 8002 int isc_retval; 8003 8004 retval = 0; 8005 8006 mtx_lock(&lun->lun_lock); 8007 if (sa_res_key == 0) { 8008 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8009 /* validate scope and type */ 8010 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8011 SPR_LU_SCOPE) { 8012 mtx_unlock(&lun->lun_lock); 8013 ctl_set_invalid_field(/*ctsio*/ ctsio, 8014 /*sks_valid*/ 1, 8015 /*command*/ 1, 8016 /*field*/ 2, 8017 /*bit_valid*/ 1, 8018 /*bit*/ 4); 8019 ctl_done((union ctl_io *)ctsio); 8020 return (1); 8021 } 8022 8023 if (type>8 || type==2 || type==4 || type==0) { 8024 mtx_unlock(&lun->lun_lock); 8025 ctl_set_invalid_field(/*ctsio*/ ctsio, 8026 /*sks_valid*/ 1, 8027 /*command*/ 1, 8028 /*field*/ 2, 8029 /*bit_valid*/ 1, 8030 /*bit*/ 0); 8031 ctl_done((union ctl_io *)ctsio); 8032 return (1); 8033 } 8034 8035 /* temporarily unregister this nexus */ 8036 lun->per_res[residx].registered = 0; 8037 8038 /* 8039 * Unregister everybody else and build UA for 8040 * them 8041 */ 8042 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8043 if (lun->per_res[i].registered == 0) 8044 continue; 8045 8046 if (!persis_offset 8047 && i <CTL_MAX_INITIATORS) 8048 lun->pending_ua[i] |= 8049 CTL_UA_REG_PREEMPT; 8050 else if (persis_offset 8051 && i >= persis_offset) 8052 lun->pending_ua[i-persis_offset] |= 8053 CTL_UA_REG_PREEMPT; 8054 lun->per_res[i].registered = 0; 8055 memset(&lun->per_res[i].res_key, 0, 8056 sizeof(struct scsi_per_res_key)); 8057 } 8058 lun->per_res[residx].registered = 1; 8059 lun->pr_key_count = 1; 8060 lun->res_type = type; 8061 if (lun->res_type != SPR_TYPE_WR_EX_AR 8062 && lun->res_type != SPR_TYPE_EX_AC_AR) 8063 lun->pr_res_idx = residx; 8064 8065 /* send msg to other side */ 8066 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8067 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8068 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8069 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8070 persis_io.pr.pr_info.res_type = type; 8071 memcpy(persis_io.pr.pr_info.sa_res_key, 8072 param->serv_act_res_key, 8073 sizeof(param->serv_act_res_key)); 8074 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8075 &persis_io, sizeof(persis_io), 0)) > 8076 CTL_HA_STATUS_SUCCESS) { 8077 printf("CTL:Persis Out error returned " 8078 "from ctl_ha_msg_send %d\n", 8079 isc_retval); 8080 } 8081 } else { 8082 /* not all registrants */ 8083 mtx_unlock(&lun->lun_lock); 8084 free(ctsio->kern_data_ptr, M_CTL); 8085 ctl_set_invalid_field(ctsio, 8086 /*sks_valid*/ 1, 8087 /*command*/ 0, 8088 /*field*/ 8, 8089 /*bit_valid*/ 0, 8090 /*bit*/ 0); 8091 ctl_done((union ctl_io *)ctsio); 8092 return (1); 8093 } 8094 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8095 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8096 int found = 0; 8097 8098 if (res_key == sa_res_key) { 8099 /* special case */ 8100 /* 8101 * The spec implies this is not good but doesn't 8102 * say what to do. There are two choices either 8103 * generate a res conflict or check condition 8104 * with illegal field in parameter data. Since 8105 * that is what is done when the sa_res_key is 8106 * zero I'll take that approach since this has 8107 * to do with the sa_res_key. 8108 */ 8109 mtx_unlock(&lun->lun_lock); 8110 free(ctsio->kern_data_ptr, M_CTL); 8111 ctl_set_invalid_field(ctsio, 8112 /*sks_valid*/ 1, 8113 /*command*/ 0, 8114 /*field*/ 8, 8115 /*bit_valid*/ 0, 8116 /*bit*/ 0); 8117 ctl_done((union ctl_io *)ctsio); 8118 return (1); 8119 } 8120 8121 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8122 if (lun->per_res[i].registered 8123 && memcmp(param->serv_act_res_key, 8124 lun->per_res[i].res_key.key, 8125 sizeof(struct scsi_per_res_key)) != 0) 8126 continue; 8127 8128 found = 1; 8129 lun->per_res[i].registered = 0; 8130 memset(&lun->per_res[i].res_key, 0, 8131 sizeof(struct scsi_per_res_key)); 8132 lun->pr_key_count--; 8133 8134 if (!persis_offset && i < CTL_MAX_INITIATORS) 8135 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8136 else if (persis_offset && i >= persis_offset) 8137 lun->pending_ua[i-persis_offset] |= 8138 CTL_UA_REG_PREEMPT; 8139 } 8140 if (!found) { 8141 mtx_unlock(&lun->lun_lock); 8142 free(ctsio->kern_data_ptr, M_CTL); 8143 ctl_set_reservation_conflict(ctsio); 8144 ctl_done((union ctl_io *)ctsio); 8145 return (CTL_RETVAL_COMPLETE); 8146 } 8147 /* send msg to other side */ 8148 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8149 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8150 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8151 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8152 persis_io.pr.pr_info.res_type = type; 8153 memcpy(persis_io.pr.pr_info.sa_res_key, 8154 param->serv_act_res_key, 8155 sizeof(param->serv_act_res_key)); 8156 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8157 &persis_io, sizeof(persis_io), 0)) > 8158 CTL_HA_STATUS_SUCCESS) { 8159 printf("CTL:Persis Out error returned from " 8160 "ctl_ha_msg_send %d\n", isc_retval); 8161 } 8162 } else { 8163 /* Reserved but not all registrants */ 8164 /* sa_res_key is res holder */ 8165 if (memcmp(param->serv_act_res_key, 8166 lun->per_res[lun->pr_res_idx].res_key.key, 8167 sizeof(struct scsi_per_res_key)) == 0) { 8168 /* validate scope and type */ 8169 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8170 SPR_LU_SCOPE) { 8171 mtx_unlock(&lun->lun_lock); 8172 ctl_set_invalid_field(/*ctsio*/ ctsio, 8173 /*sks_valid*/ 1, 8174 /*command*/ 1, 8175 /*field*/ 2, 8176 /*bit_valid*/ 1, 8177 /*bit*/ 4); 8178 ctl_done((union ctl_io *)ctsio); 8179 return (1); 8180 } 8181 8182 if (type>8 || type==2 || type==4 || type==0) { 8183 mtx_unlock(&lun->lun_lock); 8184 ctl_set_invalid_field(/*ctsio*/ ctsio, 8185 /*sks_valid*/ 1, 8186 /*command*/ 1, 8187 /*field*/ 2, 8188 /*bit_valid*/ 1, 8189 /*bit*/ 0); 8190 ctl_done((union ctl_io *)ctsio); 8191 return (1); 8192 } 8193 8194 /* 8195 * Do the following: 8196 * if sa_res_key != res_key remove all 8197 * registrants w/sa_res_key and generate UA 8198 * for these registrants(Registrations 8199 * Preempted) if it wasn't an exclusive 8200 * reservation generate UA(Reservations 8201 * Preempted) for all other registered nexuses 8202 * if the type has changed. Establish the new 8203 * reservation and holder. If res_key and 8204 * sa_res_key are the same do the above 8205 * except don't unregister the res holder. 8206 */ 8207 8208 /* 8209 * Temporarily unregister so it won't get 8210 * removed or UA generated 8211 */ 8212 lun->per_res[residx].registered = 0; 8213 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8214 if (lun->per_res[i].registered == 0) 8215 continue; 8216 8217 if (memcmp(param->serv_act_res_key, 8218 lun->per_res[i].res_key.key, 8219 sizeof(struct scsi_per_res_key)) == 0) { 8220 lun->per_res[i].registered = 0; 8221 memset(&lun->per_res[i].res_key, 8222 0, 8223 sizeof(struct scsi_per_res_key)); 8224 lun->pr_key_count--; 8225 8226 if (!persis_offset 8227 && i < CTL_MAX_INITIATORS) 8228 lun->pending_ua[i] |= 8229 CTL_UA_REG_PREEMPT; 8230 else if (persis_offset 8231 && i >= persis_offset) 8232 lun->pending_ua[i-persis_offset] |= 8233 CTL_UA_REG_PREEMPT; 8234 } else if (type != lun->res_type 8235 && (lun->res_type == SPR_TYPE_WR_EX_RO 8236 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8237 if (!persis_offset 8238 && i < CTL_MAX_INITIATORS) 8239 lun->pending_ua[i] |= 8240 CTL_UA_RES_RELEASE; 8241 else if (persis_offset 8242 && i >= persis_offset) 8243 lun->pending_ua[ 8244 i-persis_offset] |= 8245 CTL_UA_RES_RELEASE; 8246 } 8247 } 8248 lun->per_res[residx].registered = 1; 8249 lun->res_type = type; 8250 if (lun->res_type != SPR_TYPE_WR_EX_AR 8251 && lun->res_type != SPR_TYPE_EX_AC_AR) 8252 lun->pr_res_idx = residx; 8253 else 8254 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8255 8256 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8257 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8258 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8259 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8260 persis_io.pr.pr_info.res_type = type; 8261 memcpy(persis_io.pr.pr_info.sa_res_key, 8262 param->serv_act_res_key, 8263 sizeof(param->serv_act_res_key)); 8264 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8265 &persis_io, sizeof(persis_io), 0)) > 8266 CTL_HA_STATUS_SUCCESS) { 8267 printf("CTL:Persis Out error returned " 8268 "from ctl_ha_msg_send %d\n", 8269 isc_retval); 8270 } 8271 } else { 8272 /* 8273 * sa_res_key is not the res holder just 8274 * remove registrants 8275 */ 8276 int found=0; 8277 8278 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8279 if (memcmp(param->serv_act_res_key, 8280 lun->per_res[i].res_key.key, 8281 sizeof(struct scsi_per_res_key)) != 0) 8282 continue; 8283 8284 found = 1; 8285 lun->per_res[i].registered = 0; 8286 memset(&lun->per_res[i].res_key, 0, 8287 sizeof(struct scsi_per_res_key)); 8288 lun->pr_key_count--; 8289 8290 if (!persis_offset 8291 && i < CTL_MAX_INITIATORS) 8292 lun->pending_ua[i] |= 8293 CTL_UA_REG_PREEMPT; 8294 else if (persis_offset 8295 && i >= persis_offset) 8296 lun->pending_ua[i-persis_offset] |= 8297 CTL_UA_REG_PREEMPT; 8298 } 8299 8300 if (!found) { 8301 mtx_unlock(&lun->lun_lock); 8302 free(ctsio->kern_data_ptr, M_CTL); 8303 ctl_set_reservation_conflict(ctsio); 8304 ctl_done((union ctl_io *)ctsio); 8305 return (1); 8306 } 8307 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8308 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8309 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8310 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8311 persis_io.pr.pr_info.res_type = type; 8312 memcpy(persis_io.pr.pr_info.sa_res_key, 8313 param->serv_act_res_key, 8314 sizeof(param->serv_act_res_key)); 8315 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8316 &persis_io, sizeof(persis_io), 0)) > 8317 CTL_HA_STATUS_SUCCESS) { 8318 printf("CTL:Persis Out error returned " 8319 "from ctl_ha_msg_send %d\n", 8320 isc_retval); 8321 } 8322 } 8323 } 8324 8325 lun->PRGeneration++; 8326 mtx_unlock(&lun->lun_lock); 8327 8328 return (retval); 8329} 8330 8331static void 8332ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8333{ 8334 int i; 8335 8336 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8337 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8338 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8339 msg->pr.pr_info.sa_res_key, 8340 sizeof(struct scsi_per_res_key)) != 0) { 8341 uint64_t sa_res_key; 8342 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8343 8344 if (sa_res_key == 0) { 8345 /* temporarily unregister this nexus */ 8346 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8347 8348 /* 8349 * Unregister everybody else and build UA for 8350 * them 8351 */ 8352 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8353 if (lun->per_res[i].registered == 0) 8354 continue; 8355 8356 if (!persis_offset 8357 && i < CTL_MAX_INITIATORS) 8358 lun->pending_ua[i] |= 8359 CTL_UA_REG_PREEMPT; 8360 else if (persis_offset && i >= persis_offset) 8361 lun->pending_ua[i - persis_offset] |= 8362 CTL_UA_REG_PREEMPT; 8363 lun->per_res[i].registered = 0; 8364 memset(&lun->per_res[i].res_key, 0, 8365 sizeof(struct scsi_per_res_key)); 8366 } 8367 8368 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8369 lun->pr_key_count = 1; 8370 lun->res_type = msg->pr.pr_info.res_type; 8371 if (lun->res_type != SPR_TYPE_WR_EX_AR 8372 && lun->res_type != SPR_TYPE_EX_AC_AR) 8373 lun->pr_res_idx = msg->pr.pr_info.residx; 8374 } else { 8375 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8376 if (memcmp(msg->pr.pr_info.sa_res_key, 8377 lun->per_res[i].res_key.key, 8378 sizeof(struct scsi_per_res_key)) != 0) 8379 continue; 8380 8381 lun->per_res[i].registered = 0; 8382 memset(&lun->per_res[i].res_key, 0, 8383 sizeof(struct scsi_per_res_key)); 8384 lun->pr_key_count--; 8385 8386 if (!persis_offset 8387 && i < persis_offset) 8388 lun->pending_ua[i] |= 8389 CTL_UA_REG_PREEMPT; 8390 else if (persis_offset 8391 && i >= persis_offset) 8392 lun->pending_ua[i - persis_offset] |= 8393 CTL_UA_REG_PREEMPT; 8394 } 8395 } 8396 } else { 8397 /* 8398 * Temporarily unregister so it won't get removed 8399 * or UA generated 8400 */ 8401 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8402 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8403 if (lun->per_res[i].registered == 0) 8404 continue; 8405 8406 if (memcmp(msg->pr.pr_info.sa_res_key, 8407 lun->per_res[i].res_key.key, 8408 sizeof(struct scsi_per_res_key)) == 0) { 8409 lun->per_res[i].registered = 0; 8410 memset(&lun->per_res[i].res_key, 0, 8411 sizeof(struct scsi_per_res_key)); 8412 lun->pr_key_count--; 8413 if (!persis_offset 8414 && i < CTL_MAX_INITIATORS) 8415 lun->pending_ua[i] |= 8416 CTL_UA_REG_PREEMPT; 8417 else if (persis_offset 8418 && i >= persis_offset) 8419 lun->pending_ua[i - persis_offset] |= 8420 CTL_UA_REG_PREEMPT; 8421 } else if (msg->pr.pr_info.res_type != lun->res_type 8422 && (lun->res_type == SPR_TYPE_WR_EX_RO 8423 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8424 if (!persis_offset 8425 && i < persis_offset) 8426 lun->pending_ua[i] |= 8427 CTL_UA_RES_RELEASE; 8428 else if (persis_offset 8429 && i >= persis_offset) 8430 lun->pending_ua[i - persis_offset] |= 8431 CTL_UA_RES_RELEASE; 8432 } 8433 } 8434 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8435 lun->res_type = msg->pr.pr_info.res_type; 8436 if (lun->res_type != SPR_TYPE_WR_EX_AR 8437 && lun->res_type != SPR_TYPE_EX_AC_AR) 8438 lun->pr_res_idx = msg->pr.pr_info.residx; 8439 else 8440 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8441 } 8442 lun->PRGeneration++; 8443 8444} 8445 8446 8447int 8448ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8449{ 8450 int retval; 8451 int isc_retval; 8452 u_int32_t param_len; 8453 struct scsi_per_res_out *cdb; 8454 struct ctl_lun *lun; 8455 struct scsi_per_res_out_parms* param; 8456 struct ctl_softc *softc; 8457 uint32_t residx; 8458 uint64_t res_key, sa_res_key; 8459 uint8_t type; 8460 union ctl_ha_msg persis_io; 8461 int i; 8462 8463 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8464 8465 retval = CTL_RETVAL_COMPLETE; 8466 8467 softc = control_softc; 8468 8469 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8470 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8471 8472 /* 8473 * We only support whole-LUN scope. The scope & type are ignored for 8474 * register, register and ignore existing key and clear. 8475 * We sometimes ignore scope and type on preempts too!! 8476 * Verify reservation type here as well. 8477 */ 8478 type = cdb->scope_type & SPR_TYPE_MASK; 8479 if ((cdb->action == SPRO_RESERVE) 8480 || (cdb->action == SPRO_RELEASE)) { 8481 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8482 ctl_set_invalid_field(/*ctsio*/ ctsio, 8483 /*sks_valid*/ 1, 8484 /*command*/ 1, 8485 /*field*/ 2, 8486 /*bit_valid*/ 1, 8487 /*bit*/ 4); 8488 ctl_done((union ctl_io *)ctsio); 8489 return (CTL_RETVAL_COMPLETE); 8490 } 8491 8492 if (type>8 || type==2 || type==4 || type==0) { 8493 ctl_set_invalid_field(/*ctsio*/ ctsio, 8494 /*sks_valid*/ 1, 8495 /*command*/ 1, 8496 /*field*/ 2, 8497 /*bit_valid*/ 1, 8498 /*bit*/ 0); 8499 ctl_done((union ctl_io *)ctsio); 8500 return (CTL_RETVAL_COMPLETE); 8501 } 8502 } 8503 8504 param_len = scsi_4btoul(cdb->length); 8505 8506 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8507 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8508 ctsio->kern_data_len = param_len; 8509 ctsio->kern_total_len = param_len; 8510 ctsio->kern_data_resid = 0; 8511 ctsio->kern_rel_offset = 0; 8512 ctsio->kern_sg_entries = 0; 8513 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8514 ctsio->be_move_done = ctl_config_move_done; 8515 ctl_datamove((union ctl_io *)ctsio); 8516 8517 return (CTL_RETVAL_COMPLETE); 8518 } 8519 8520 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8521 8522 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8523 res_key = scsi_8btou64(param->res_key.key); 8524 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8525 8526 /* 8527 * Validate the reservation key here except for SPRO_REG_IGNO 8528 * This must be done for all other service actions 8529 */ 8530 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8531 mtx_lock(&lun->lun_lock); 8532 if (lun->per_res[residx].registered) { 8533 if (memcmp(param->res_key.key, 8534 lun->per_res[residx].res_key.key, 8535 ctl_min(sizeof(param->res_key), 8536 sizeof(lun->per_res[residx].res_key))) != 0) { 8537 /* 8538 * The current key passed in doesn't match 8539 * the one the initiator previously 8540 * registered. 8541 */ 8542 mtx_unlock(&lun->lun_lock); 8543 free(ctsio->kern_data_ptr, M_CTL); 8544 ctl_set_reservation_conflict(ctsio); 8545 ctl_done((union ctl_io *)ctsio); 8546 return (CTL_RETVAL_COMPLETE); 8547 } 8548 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8549 /* 8550 * We are not registered 8551 */ 8552 mtx_unlock(&lun->lun_lock); 8553 free(ctsio->kern_data_ptr, M_CTL); 8554 ctl_set_reservation_conflict(ctsio); 8555 ctl_done((union ctl_io *)ctsio); 8556 return (CTL_RETVAL_COMPLETE); 8557 } else if (res_key != 0) { 8558 /* 8559 * We are not registered and trying to register but 8560 * the register key isn't zero. 8561 */ 8562 mtx_unlock(&lun->lun_lock); 8563 free(ctsio->kern_data_ptr, M_CTL); 8564 ctl_set_reservation_conflict(ctsio); 8565 ctl_done((union ctl_io *)ctsio); 8566 return (CTL_RETVAL_COMPLETE); 8567 } 8568 mtx_unlock(&lun->lun_lock); 8569 } 8570 8571 switch (cdb->action & SPRO_ACTION_MASK) { 8572 case SPRO_REGISTER: 8573 case SPRO_REG_IGNO: { 8574 8575#if 0 8576 printf("Registration received\n"); 8577#endif 8578 8579 /* 8580 * We don't support any of these options, as we report in 8581 * the read capabilities request (see 8582 * ctl_persistent_reserve_in(), above). 8583 */ 8584 if ((param->flags & SPR_SPEC_I_PT) 8585 || (param->flags & SPR_ALL_TG_PT) 8586 || (param->flags & SPR_APTPL)) { 8587 int bit_ptr; 8588 8589 if (param->flags & SPR_APTPL) 8590 bit_ptr = 0; 8591 else if (param->flags & SPR_ALL_TG_PT) 8592 bit_ptr = 2; 8593 else /* SPR_SPEC_I_PT */ 8594 bit_ptr = 3; 8595 8596 free(ctsio->kern_data_ptr, M_CTL); 8597 ctl_set_invalid_field(ctsio, 8598 /*sks_valid*/ 1, 8599 /*command*/ 0, 8600 /*field*/ 20, 8601 /*bit_valid*/ 1, 8602 /*bit*/ bit_ptr); 8603 ctl_done((union ctl_io *)ctsio); 8604 return (CTL_RETVAL_COMPLETE); 8605 } 8606 8607 mtx_lock(&lun->lun_lock); 8608 8609 /* 8610 * The initiator wants to clear the 8611 * key/unregister. 8612 */ 8613 if (sa_res_key == 0) { 8614 if ((res_key == 0 8615 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8616 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8617 && !lun->per_res[residx].registered)) { 8618 mtx_unlock(&lun->lun_lock); 8619 goto done; 8620 } 8621 8622 lun->per_res[residx].registered = 0; 8623 memset(&lun->per_res[residx].res_key, 8624 0, sizeof(lun->per_res[residx].res_key)); 8625 lun->pr_key_count--; 8626 8627 if (residx == lun->pr_res_idx) { 8628 lun->flags &= ~CTL_LUN_PR_RESERVED; 8629 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8630 8631 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8632 || lun->res_type == SPR_TYPE_EX_AC_RO) 8633 && lun->pr_key_count) { 8634 /* 8635 * If the reservation is a registrants 8636 * only type we need to generate a UA 8637 * for other registered inits. The 8638 * sense code should be RESERVATIONS 8639 * RELEASED 8640 */ 8641 8642 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8643 if (lun->per_res[ 8644 i+persis_offset].registered 8645 == 0) 8646 continue; 8647 lun->pending_ua[i] |= 8648 CTL_UA_RES_RELEASE; 8649 } 8650 } 8651 lun->res_type = 0; 8652 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8653 if (lun->pr_key_count==0) { 8654 lun->flags &= ~CTL_LUN_PR_RESERVED; 8655 lun->res_type = 0; 8656 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8657 } 8658 } 8659 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8660 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8661 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8662 persis_io.pr.pr_info.residx = residx; 8663 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8664 &persis_io, sizeof(persis_io), 0 )) > 8665 CTL_HA_STATUS_SUCCESS) { 8666 printf("CTL:Persis Out error returned from " 8667 "ctl_ha_msg_send %d\n", isc_retval); 8668 } 8669 } else /* sa_res_key != 0 */ { 8670 8671 /* 8672 * If we aren't registered currently then increment 8673 * the key count and set the registered flag. 8674 */ 8675 if (!lun->per_res[residx].registered) { 8676 lun->pr_key_count++; 8677 lun->per_res[residx].registered = 1; 8678 } 8679 8680 memcpy(&lun->per_res[residx].res_key, 8681 param->serv_act_res_key, 8682 ctl_min(sizeof(param->serv_act_res_key), 8683 sizeof(lun->per_res[residx].res_key))); 8684 8685 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8686 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8687 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8688 persis_io.pr.pr_info.residx = residx; 8689 memcpy(persis_io.pr.pr_info.sa_res_key, 8690 param->serv_act_res_key, 8691 sizeof(param->serv_act_res_key)); 8692 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8693 &persis_io, sizeof(persis_io), 0)) > 8694 CTL_HA_STATUS_SUCCESS) { 8695 printf("CTL:Persis Out error returned from " 8696 "ctl_ha_msg_send %d\n", isc_retval); 8697 } 8698 } 8699 lun->PRGeneration++; 8700 mtx_unlock(&lun->lun_lock); 8701 8702 break; 8703 } 8704 case SPRO_RESERVE: 8705#if 0 8706 printf("Reserve executed type %d\n", type); 8707#endif 8708 mtx_lock(&lun->lun_lock); 8709 if (lun->flags & CTL_LUN_PR_RESERVED) { 8710 /* 8711 * if this isn't the reservation holder and it's 8712 * not a "all registrants" type or if the type is 8713 * different then we have a conflict 8714 */ 8715 if ((lun->pr_res_idx != residx 8716 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8717 || lun->res_type != type) { 8718 mtx_unlock(&lun->lun_lock); 8719 free(ctsio->kern_data_ptr, M_CTL); 8720 ctl_set_reservation_conflict(ctsio); 8721 ctl_done((union ctl_io *)ctsio); 8722 return (CTL_RETVAL_COMPLETE); 8723 } 8724 mtx_unlock(&lun->lun_lock); 8725 } else /* create a reservation */ { 8726 /* 8727 * If it's not an "all registrants" type record 8728 * reservation holder 8729 */ 8730 if (type != SPR_TYPE_WR_EX_AR 8731 && type != SPR_TYPE_EX_AC_AR) 8732 lun->pr_res_idx = residx; /* Res holder */ 8733 else 8734 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8735 8736 lun->flags |= CTL_LUN_PR_RESERVED; 8737 lun->res_type = type; 8738 8739 mtx_unlock(&lun->lun_lock); 8740 8741 /* send msg to other side */ 8742 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8743 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8744 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8745 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8746 persis_io.pr.pr_info.res_type = type; 8747 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8748 &persis_io, sizeof(persis_io), 0)) > 8749 CTL_HA_STATUS_SUCCESS) { 8750 printf("CTL:Persis Out error returned from " 8751 "ctl_ha_msg_send %d\n", isc_retval); 8752 } 8753 } 8754 break; 8755 8756 case SPRO_RELEASE: 8757 mtx_lock(&lun->lun_lock); 8758 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8759 /* No reservation exists return good status */ 8760 mtx_unlock(&lun->lun_lock); 8761 goto done; 8762 } 8763 /* 8764 * Is this nexus a reservation holder? 8765 */ 8766 if (lun->pr_res_idx != residx 8767 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8768 /* 8769 * not a res holder return good status but 8770 * do nothing 8771 */ 8772 mtx_unlock(&lun->lun_lock); 8773 goto done; 8774 } 8775 8776 if (lun->res_type != type) { 8777 mtx_unlock(&lun->lun_lock); 8778 free(ctsio->kern_data_ptr, M_CTL); 8779 ctl_set_illegal_pr_release(ctsio); 8780 ctl_done((union ctl_io *)ctsio); 8781 return (CTL_RETVAL_COMPLETE); 8782 } 8783 8784 /* okay to release */ 8785 lun->flags &= ~CTL_LUN_PR_RESERVED; 8786 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8787 lun->res_type = 0; 8788 8789 /* 8790 * if this isn't an exclusive access 8791 * res generate UA for all other 8792 * registrants. 8793 */ 8794 if (type != SPR_TYPE_EX_AC 8795 && type != SPR_TYPE_WR_EX) { 8796 /* 8797 * temporarily unregister so we don't generate UA 8798 */ 8799 lun->per_res[residx].registered = 0; 8800 8801 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8802 if (lun->per_res[i+persis_offset].registered 8803 == 0) 8804 continue; 8805 lun->pending_ua[i] |= 8806 CTL_UA_RES_RELEASE; 8807 } 8808 8809 lun->per_res[residx].registered = 1; 8810 } 8811 mtx_unlock(&lun->lun_lock); 8812 /* Send msg to other side */ 8813 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8814 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8815 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8816 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8817 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8818 printf("CTL:Persis Out error returned from " 8819 "ctl_ha_msg_send %d\n", isc_retval); 8820 } 8821 break; 8822 8823 case SPRO_CLEAR: 8824 /* send msg to other side */ 8825 8826 mtx_lock(&lun->lun_lock); 8827 lun->flags &= ~CTL_LUN_PR_RESERVED; 8828 lun->res_type = 0; 8829 lun->pr_key_count = 0; 8830 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8831 8832 8833 memset(&lun->per_res[residx].res_key, 8834 0, sizeof(lun->per_res[residx].res_key)); 8835 lun->per_res[residx].registered = 0; 8836 8837 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8838 if (lun->per_res[i].registered) { 8839 if (!persis_offset && i < CTL_MAX_INITIATORS) 8840 lun->pending_ua[i] |= 8841 CTL_UA_RES_PREEMPT; 8842 else if (persis_offset && i >= persis_offset) 8843 lun->pending_ua[i-persis_offset] |= 8844 CTL_UA_RES_PREEMPT; 8845 8846 memset(&lun->per_res[i].res_key, 8847 0, sizeof(struct scsi_per_res_key)); 8848 lun->per_res[i].registered = 0; 8849 } 8850 lun->PRGeneration++; 8851 mtx_unlock(&lun->lun_lock); 8852 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8853 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8854 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8855 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8856 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8857 printf("CTL:Persis Out error returned from " 8858 "ctl_ha_msg_send %d\n", isc_retval); 8859 } 8860 break; 8861 8862 case SPRO_PREEMPT: { 8863 int nretval; 8864 8865 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8866 residx, ctsio, cdb, param); 8867 if (nretval != 0) 8868 return (CTL_RETVAL_COMPLETE); 8869 break; 8870 } 8871 default: 8872 panic("Invalid PR type %x", cdb->action); 8873 } 8874 8875done: 8876 free(ctsio->kern_data_ptr, M_CTL); 8877 ctl_set_success(ctsio); 8878 ctl_done((union ctl_io *)ctsio); 8879 8880 return (retval); 8881} 8882 8883/* 8884 * This routine is for handling a message from the other SC pertaining to 8885 * persistent reserve out. All the error checking will have been done 8886 * so only perorming the action need be done here to keep the two 8887 * in sync. 8888 */ 8889static void 8890ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8891{ 8892 struct ctl_lun *lun; 8893 struct ctl_softc *softc; 8894 int i; 8895 uint32_t targ_lun; 8896 8897 softc = control_softc; 8898 8899 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8900 lun = softc->ctl_luns[targ_lun]; 8901 mtx_lock(&lun->lun_lock); 8902 switch(msg->pr.pr_info.action) { 8903 case CTL_PR_REG_KEY: 8904 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8905 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8906 lun->pr_key_count++; 8907 } 8908 lun->PRGeneration++; 8909 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8910 msg->pr.pr_info.sa_res_key, 8911 sizeof(struct scsi_per_res_key)); 8912 break; 8913 8914 case CTL_PR_UNREG_KEY: 8915 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8916 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8917 0, sizeof(struct scsi_per_res_key)); 8918 lun->pr_key_count--; 8919 8920 /* XXX Need to see if the reservation has been released */ 8921 /* if so do we need to generate UA? */ 8922 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8923 lun->flags &= ~CTL_LUN_PR_RESERVED; 8924 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8925 8926 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8927 || lun->res_type == SPR_TYPE_EX_AC_RO) 8928 && lun->pr_key_count) { 8929 /* 8930 * If the reservation is a registrants 8931 * only type we need to generate a UA 8932 * for other registered inits. The 8933 * sense code should be RESERVATIONS 8934 * RELEASED 8935 */ 8936 8937 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8938 if (lun->per_res[i+ 8939 persis_offset].registered == 0) 8940 continue; 8941 8942 lun->pending_ua[i] |= 8943 CTL_UA_RES_RELEASE; 8944 } 8945 } 8946 lun->res_type = 0; 8947 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8948 if (lun->pr_key_count==0) { 8949 lun->flags &= ~CTL_LUN_PR_RESERVED; 8950 lun->res_type = 0; 8951 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8952 } 8953 } 8954 lun->PRGeneration++; 8955 break; 8956 8957 case CTL_PR_RESERVE: 8958 lun->flags |= CTL_LUN_PR_RESERVED; 8959 lun->res_type = msg->pr.pr_info.res_type; 8960 lun->pr_res_idx = msg->pr.pr_info.residx; 8961 8962 break; 8963 8964 case CTL_PR_RELEASE: 8965 /* 8966 * if this isn't an exclusive access res generate UA for all 8967 * other registrants. 8968 */ 8969 if (lun->res_type != SPR_TYPE_EX_AC 8970 && lun->res_type != SPR_TYPE_WR_EX) { 8971 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8972 if (lun->per_res[i+persis_offset].registered) 8973 lun->pending_ua[i] |= 8974 CTL_UA_RES_RELEASE; 8975 } 8976 8977 lun->flags &= ~CTL_LUN_PR_RESERVED; 8978 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8979 lun->res_type = 0; 8980 break; 8981 8982 case CTL_PR_PREEMPT: 8983 ctl_pro_preempt_other(lun, msg); 8984 break; 8985 case CTL_PR_CLEAR: 8986 lun->flags &= ~CTL_LUN_PR_RESERVED; 8987 lun->res_type = 0; 8988 lun->pr_key_count = 0; 8989 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8990 8991 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8992 if (lun->per_res[i].registered == 0) 8993 continue; 8994 if (!persis_offset 8995 && i < CTL_MAX_INITIATORS) 8996 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8997 else if (persis_offset 8998 && i >= persis_offset) 8999 lun->pending_ua[i-persis_offset] |= 9000 CTL_UA_RES_PREEMPT; 9001 memset(&lun->per_res[i].res_key, 0, 9002 sizeof(struct scsi_per_res_key)); 9003 lun->per_res[i].registered = 0; 9004 } 9005 lun->PRGeneration++; 9006 break; 9007 } 9008 9009 mtx_unlock(&lun->lun_lock); 9010} 9011 9012int 9013ctl_read_write(struct ctl_scsiio *ctsio) 9014{ 9015 struct ctl_lun *lun; 9016 struct ctl_lba_len_flags *lbalen; 9017 uint64_t lba; 9018 uint32_t num_blocks; 9019 int flags, retval; 9020 int isread; 9021 9022 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9023 9024 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9025 9026 flags = 0; 9027 retval = CTL_RETVAL_COMPLETE; 9028 9029 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9030 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9031 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9032 uint32_t residx; 9033 9034 /* 9035 * XXX KDM need a lock here. 9036 */ 9037 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9038 if ((lun->res_type == SPR_TYPE_EX_AC 9039 && residx != lun->pr_res_idx) 9040 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9041 || lun->res_type == SPR_TYPE_EX_AC_AR) 9042 && !lun->per_res[residx].registered)) { 9043 ctl_set_reservation_conflict(ctsio); 9044 ctl_done((union ctl_io *)ctsio); 9045 return (CTL_RETVAL_COMPLETE); 9046 } 9047 } 9048 9049 switch (ctsio->cdb[0]) { 9050 case READ_6: 9051 case WRITE_6: { 9052 struct scsi_rw_6 *cdb; 9053 9054 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9055 9056 lba = scsi_3btoul(cdb->addr); 9057 /* only 5 bits are valid in the most significant address byte */ 9058 lba &= 0x1fffff; 9059 num_blocks = cdb->length; 9060 /* 9061 * This is correct according to SBC-2. 9062 */ 9063 if (num_blocks == 0) 9064 num_blocks = 256; 9065 break; 9066 } 9067 case READ_10: 9068 case WRITE_10: { 9069 struct scsi_rw_10 *cdb; 9070 9071 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9072 if (cdb->byte2 & SRW10_FUA) 9073 flags |= CTL_LLF_FUA; 9074 if (cdb->byte2 & SRW10_DPO) 9075 flags |= CTL_LLF_DPO; 9076 lba = scsi_4btoul(cdb->addr); 9077 num_blocks = scsi_2btoul(cdb->length); 9078 break; 9079 } 9080 case WRITE_VERIFY_10: { 9081 struct scsi_write_verify_10 *cdb; 9082 9083 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9084 flags |= CTL_LLF_FUA; 9085 if (cdb->byte2 & SWV_DPO) 9086 flags |= CTL_LLF_DPO; 9087 lba = scsi_4btoul(cdb->addr); 9088 num_blocks = scsi_2btoul(cdb->length); 9089 break; 9090 } 9091 case READ_12: 9092 case WRITE_12: { 9093 struct scsi_rw_12 *cdb; 9094 9095 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9096 if (cdb->byte2 & SRW12_FUA) 9097 flags |= CTL_LLF_FUA; 9098 if (cdb->byte2 & SRW12_DPO) 9099 flags |= CTL_LLF_DPO; 9100 lba = scsi_4btoul(cdb->addr); 9101 num_blocks = scsi_4btoul(cdb->length); 9102 break; 9103 } 9104 case WRITE_VERIFY_12: { 9105 struct scsi_write_verify_12 *cdb; 9106 9107 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9108 flags |= CTL_LLF_FUA; 9109 if (cdb->byte2 & SWV_DPO) 9110 flags |= CTL_LLF_DPO; 9111 lba = scsi_4btoul(cdb->addr); 9112 num_blocks = scsi_4btoul(cdb->length); 9113 break; 9114 } 9115 case READ_16: 9116 case WRITE_16: { 9117 struct scsi_rw_16 *cdb; 9118 9119 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9120 if (cdb->byte2 & SRW12_FUA) 9121 flags |= CTL_LLF_FUA; 9122 if (cdb->byte2 & SRW12_DPO) 9123 flags |= CTL_LLF_DPO; 9124 lba = scsi_8btou64(cdb->addr); 9125 num_blocks = scsi_4btoul(cdb->length); 9126 break; 9127 } 9128 case WRITE_VERIFY_16: { 9129 struct scsi_write_verify_16 *cdb; 9130 9131 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9132 flags |= CTL_LLF_FUA; 9133 if (cdb->byte2 & SWV_DPO) 9134 flags |= CTL_LLF_DPO; 9135 lba = scsi_8btou64(cdb->addr); 9136 num_blocks = scsi_4btoul(cdb->length); 9137 break; 9138 } 9139 default: 9140 /* 9141 * We got a command we don't support. This shouldn't 9142 * happen, commands should be filtered out above us. 9143 */ 9144 ctl_set_invalid_opcode(ctsio); 9145 ctl_done((union ctl_io *)ctsio); 9146 9147 return (CTL_RETVAL_COMPLETE); 9148 break; /* NOTREACHED */ 9149 } 9150 9151 /* 9152 * The first check is to make sure we're in bounds, the second 9153 * check is to catch wrap-around problems. If the lba + num blocks 9154 * is less than the lba, then we've wrapped around and the block 9155 * range is invalid anyway. 9156 */ 9157 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9158 || ((lba + num_blocks) < lba)) { 9159 ctl_set_lba_out_of_range(ctsio); 9160 ctl_done((union ctl_io *)ctsio); 9161 return (CTL_RETVAL_COMPLETE); 9162 } 9163 9164 /* 9165 * According to SBC-3, a transfer length of 0 is not an error. 9166 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9167 * translates to 256 blocks for those commands. 9168 */ 9169 if (num_blocks == 0) { 9170 ctl_set_success(ctsio); 9171 ctl_done((union ctl_io *)ctsio); 9172 return (CTL_RETVAL_COMPLETE); 9173 } 9174 9175 /* Set FUA and/or DPO if caches are disabled. */ 9176 if (isread) { 9177 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9178 SCP_RCD) != 0) 9179 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9180 } else { 9181 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9182 SCP_WCE) == 0) 9183 flags |= CTL_LLF_FUA; 9184 } 9185 9186 lbalen = (struct ctl_lba_len_flags *) 9187 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9188 lbalen->lba = lba; 9189 lbalen->len = num_blocks; 9190 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9191 9192 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9193 ctsio->kern_rel_offset = 0; 9194 9195 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9196 9197 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9198 9199 return (retval); 9200} 9201 9202static int 9203ctl_cnw_cont(union ctl_io *io) 9204{ 9205 struct ctl_scsiio *ctsio; 9206 struct ctl_lun *lun; 9207 struct ctl_lba_len_flags *lbalen; 9208 int retval; 9209 9210 ctsio = &io->scsiio; 9211 ctsio->io_hdr.status = CTL_STATUS_NONE; 9212 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9213 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9214 lbalen = (struct ctl_lba_len_flags *) 9215 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9216 lbalen->flags &= ~CTL_LLF_COMPARE; 9217 lbalen->flags |= CTL_LLF_WRITE; 9218 9219 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9220 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9221 return (retval); 9222} 9223 9224int 9225ctl_cnw(struct ctl_scsiio *ctsio) 9226{ 9227 struct ctl_lun *lun; 9228 struct ctl_lba_len_flags *lbalen; 9229 uint64_t lba; 9230 uint32_t num_blocks; 9231 int flags, retval; 9232 9233 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9234 9235 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9236 9237 flags = 0; 9238 retval = CTL_RETVAL_COMPLETE; 9239 9240 switch (ctsio->cdb[0]) { 9241 case COMPARE_AND_WRITE: { 9242 struct scsi_compare_and_write *cdb; 9243 9244 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9245 if (cdb->byte2 & SRW10_FUA) 9246 flags |= CTL_LLF_FUA; 9247 if (cdb->byte2 & SRW10_DPO) 9248 flags |= CTL_LLF_DPO; 9249 lba = scsi_8btou64(cdb->addr); 9250 num_blocks = cdb->length; 9251 break; 9252 } 9253 default: 9254 /* 9255 * We got a command we don't support. This shouldn't 9256 * happen, commands should be filtered out above us. 9257 */ 9258 ctl_set_invalid_opcode(ctsio); 9259 ctl_done((union ctl_io *)ctsio); 9260 9261 return (CTL_RETVAL_COMPLETE); 9262 break; /* NOTREACHED */ 9263 } 9264 9265 /* 9266 * The first check is to make sure we're in bounds, the second 9267 * check is to catch wrap-around problems. If the lba + num blocks 9268 * is less than the lba, then we've wrapped around and the block 9269 * range is invalid anyway. 9270 */ 9271 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9272 || ((lba + num_blocks) < lba)) { 9273 ctl_set_lba_out_of_range(ctsio); 9274 ctl_done((union ctl_io *)ctsio); 9275 return (CTL_RETVAL_COMPLETE); 9276 } 9277 9278 /* 9279 * According to SBC-3, a transfer length of 0 is not an error. 9280 */ 9281 if (num_blocks == 0) { 9282 ctl_set_success(ctsio); 9283 ctl_done((union ctl_io *)ctsio); 9284 return (CTL_RETVAL_COMPLETE); 9285 } 9286 9287 /* Set FUA if write cache is disabled. */ 9288 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9289 SCP_WCE) == 0) 9290 flags |= CTL_LLF_FUA; 9291 9292 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9293 ctsio->kern_rel_offset = 0; 9294 9295 /* 9296 * Set the IO_CONT flag, so that if this I/O gets passed to 9297 * ctl_data_submit_done(), it'll get passed back to 9298 * ctl_ctl_cnw_cont() for further processing. 9299 */ 9300 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9301 ctsio->io_cont = ctl_cnw_cont; 9302 9303 lbalen = (struct ctl_lba_len_flags *) 9304 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9305 lbalen->lba = lba; 9306 lbalen->len = num_blocks; 9307 lbalen->flags = CTL_LLF_COMPARE | flags; 9308 9309 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9310 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9311 return (retval); 9312} 9313 9314int 9315ctl_verify(struct ctl_scsiio *ctsio) 9316{ 9317 struct ctl_lun *lun; 9318 struct ctl_lba_len_flags *lbalen; 9319 uint64_t lba; 9320 uint32_t num_blocks; 9321 int bytchk, flags; 9322 int retval; 9323 9324 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9325 9326 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9327 9328 bytchk = 0; 9329 flags = CTL_LLF_FUA; 9330 retval = CTL_RETVAL_COMPLETE; 9331 9332 switch (ctsio->cdb[0]) { 9333 case VERIFY_10: { 9334 struct scsi_verify_10 *cdb; 9335 9336 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9337 if (cdb->byte2 & SVFY_BYTCHK) 9338 bytchk = 1; 9339 if (cdb->byte2 & SVFY_DPO) 9340 flags |= CTL_LLF_DPO; 9341 lba = scsi_4btoul(cdb->addr); 9342 num_blocks = scsi_2btoul(cdb->length); 9343 break; 9344 } 9345 case VERIFY_12: { 9346 struct scsi_verify_12 *cdb; 9347 9348 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9349 if (cdb->byte2 & SVFY_BYTCHK) 9350 bytchk = 1; 9351 if (cdb->byte2 & SVFY_DPO) 9352 flags |= CTL_LLF_DPO; 9353 lba = scsi_4btoul(cdb->addr); 9354 num_blocks = scsi_4btoul(cdb->length); 9355 break; 9356 } 9357 case VERIFY_16: { 9358 struct scsi_rw_16 *cdb; 9359 9360 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9361 if (cdb->byte2 & SVFY_BYTCHK) 9362 bytchk = 1; 9363 if (cdb->byte2 & SVFY_DPO) 9364 flags |= CTL_LLF_DPO; 9365 lba = scsi_8btou64(cdb->addr); 9366 num_blocks = scsi_4btoul(cdb->length); 9367 break; 9368 } 9369 default: 9370 /* 9371 * We got a command we don't support. This shouldn't 9372 * happen, commands should be filtered out above us. 9373 */ 9374 ctl_set_invalid_opcode(ctsio); 9375 ctl_done((union ctl_io *)ctsio); 9376 return (CTL_RETVAL_COMPLETE); 9377 } 9378 9379 /* 9380 * The first check is to make sure we're in bounds, the second 9381 * check is to catch wrap-around problems. If the lba + num blocks 9382 * is less than the lba, then we've wrapped around and the block 9383 * range is invalid anyway. 9384 */ 9385 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9386 || ((lba + num_blocks) < lba)) { 9387 ctl_set_lba_out_of_range(ctsio); 9388 ctl_done((union ctl_io *)ctsio); 9389 return (CTL_RETVAL_COMPLETE); 9390 } 9391 9392 /* 9393 * According to SBC-3, a transfer length of 0 is not an error. 9394 */ 9395 if (num_blocks == 0) { 9396 ctl_set_success(ctsio); 9397 ctl_done((union ctl_io *)ctsio); 9398 return (CTL_RETVAL_COMPLETE); 9399 } 9400 9401 lbalen = (struct ctl_lba_len_flags *) 9402 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9403 lbalen->lba = lba; 9404 lbalen->len = num_blocks; 9405 if (bytchk) { 9406 lbalen->flags = CTL_LLF_COMPARE | flags; 9407 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9408 } else { 9409 lbalen->flags = CTL_LLF_VERIFY | flags; 9410 ctsio->kern_total_len = 0; 9411 } 9412 ctsio->kern_rel_offset = 0; 9413 9414 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9415 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9416 return (retval); 9417} 9418 9419int 9420ctl_report_luns(struct ctl_scsiio *ctsio) 9421{ 9422 struct scsi_report_luns *cdb; 9423 struct scsi_report_luns_data *lun_data; 9424 struct ctl_lun *lun, *request_lun; 9425 int num_luns, retval; 9426 uint32_t alloc_len, lun_datalen; 9427 int num_filled, well_known; 9428 uint32_t initidx, targ_lun_id, lun_id; 9429 9430 retval = CTL_RETVAL_COMPLETE; 9431 well_known = 0; 9432 9433 cdb = (struct scsi_report_luns *)ctsio->cdb; 9434 9435 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9436 9437 mtx_lock(&control_softc->ctl_lock); 9438 num_luns = control_softc->num_luns; 9439 mtx_unlock(&control_softc->ctl_lock); 9440 9441 switch (cdb->select_report) { 9442 case RPL_REPORT_DEFAULT: 9443 case RPL_REPORT_ALL: 9444 break; 9445 case RPL_REPORT_WELLKNOWN: 9446 well_known = 1; 9447 num_luns = 0; 9448 break; 9449 default: 9450 ctl_set_invalid_field(ctsio, 9451 /*sks_valid*/ 1, 9452 /*command*/ 1, 9453 /*field*/ 2, 9454 /*bit_valid*/ 0, 9455 /*bit*/ 0); 9456 ctl_done((union ctl_io *)ctsio); 9457 return (retval); 9458 break; /* NOTREACHED */ 9459 } 9460 9461 alloc_len = scsi_4btoul(cdb->length); 9462 /* 9463 * The initiator has to allocate at least 16 bytes for this request, 9464 * so he can at least get the header and the first LUN. Otherwise 9465 * we reject the request (per SPC-3 rev 14, section 6.21). 9466 */ 9467 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9468 sizeof(struct scsi_report_luns_lundata))) { 9469 ctl_set_invalid_field(ctsio, 9470 /*sks_valid*/ 1, 9471 /*command*/ 1, 9472 /*field*/ 6, 9473 /*bit_valid*/ 0, 9474 /*bit*/ 0); 9475 ctl_done((union ctl_io *)ctsio); 9476 return (retval); 9477 } 9478 9479 request_lun = (struct ctl_lun *) 9480 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9481 9482 lun_datalen = sizeof(*lun_data) + 9483 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9484 9485 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9486 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9487 ctsio->kern_sg_entries = 0; 9488 9489 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9490 9491 mtx_lock(&control_softc->ctl_lock); 9492 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9493 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9494 if (lun_id >= CTL_MAX_LUNS) 9495 continue; 9496 lun = control_softc->ctl_luns[lun_id]; 9497 if (lun == NULL) 9498 continue; 9499 9500 if (targ_lun_id <= 0xff) { 9501 /* 9502 * Peripheral addressing method, bus number 0. 9503 */ 9504 lun_data->luns[num_filled].lundata[0] = 9505 RPL_LUNDATA_ATYP_PERIPH; 9506 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9507 num_filled++; 9508 } else if (targ_lun_id <= 0x3fff) { 9509 /* 9510 * Flat addressing method. 9511 */ 9512 lun_data->luns[num_filled].lundata[0] = 9513 RPL_LUNDATA_ATYP_FLAT | 9514 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9515#ifdef OLDCTLHEADERS 9516 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9517 (targ_lun_id & SRLD_BUS_LUN_MASK); 9518#endif 9519 lun_data->luns[num_filled].lundata[1] = 9520#ifdef OLDCTLHEADERS 9521 targ_lun_id >> SRLD_BUS_LUN_BITS; 9522#endif 9523 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9524 num_filled++; 9525 } else { 9526 printf("ctl_report_luns: bogus LUN number %jd, " 9527 "skipping\n", (intmax_t)targ_lun_id); 9528 } 9529 /* 9530 * According to SPC-3, rev 14 section 6.21: 9531 * 9532 * "The execution of a REPORT LUNS command to any valid and 9533 * installed logical unit shall clear the REPORTED LUNS DATA 9534 * HAS CHANGED unit attention condition for all logical 9535 * units of that target with respect to the requesting 9536 * initiator. A valid and installed logical unit is one 9537 * having a PERIPHERAL QUALIFIER of 000b in the standard 9538 * INQUIRY data (see 6.4.2)." 9539 * 9540 * If request_lun is NULL, the LUN this report luns command 9541 * was issued to is either disabled or doesn't exist. In that 9542 * case, we shouldn't clear any pending lun change unit 9543 * attention. 9544 */ 9545 if (request_lun != NULL) { 9546 mtx_lock(&lun->lun_lock); 9547 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9548 mtx_unlock(&lun->lun_lock); 9549 } 9550 } 9551 mtx_unlock(&control_softc->ctl_lock); 9552 9553 /* 9554 * It's quite possible that we've returned fewer LUNs than we allocated 9555 * space for. Trim it. 9556 */ 9557 lun_datalen = sizeof(*lun_data) + 9558 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9559 9560 if (lun_datalen < alloc_len) { 9561 ctsio->residual = alloc_len - lun_datalen; 9562 ctsio->kern_data_len = lun_datalen; 9563 ctsio->kern_total_len = lun_datalen; 9564 } else { 9565 ctsio->residual = 0; 9566 ctsio->kern_data_len = alloc_len; 9567 ctsio->kern_total_len = alloc_len; 9568 } 9569 ctsio->kern_data_resid = 0; 9570 ctsio->kern_rel_offset = 0; 9571 ctsio->kern_sg_entries = 0; 9572 9573 /* 9574 * We set this to the actual data length, regardless of how much 9575 * space we actually have to return results. If the user looks at 9576 * this value, he'll know whether or not he allocated enough space 9577 * and reissue the command if necessary. We don't support well 9578 * known logical units, so if the user asks for that, return none. 9579 */ 9580 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9581 9582 /* 9583 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9584 * this request. 9585 */ 9586 ctsio->scsi_status = SCSI_STATUS_OK; 9587 9588 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9589 ctsio->be_move_done = ctl_config_move_done; 9590 ctl_datamove((union ctl_io *)ctsio); 9591 9592 return (retval); 9593} 9594 9595int 9596ctl_request_sense(struct ctl_scsiio *ctsio) 9597{ 9598 struct scsi_request_sense *cdb; 9599 struct scsi_sense_data *sense_ptr; 9600 struct ctl_lun *lun; 9601 uint32_t initidx; 9602 int have_error; 9603 scsi_sense_data_type sense_format; 9604 9605 cdb = (struct scsi_request_sense *)ctsio->cdb; 9606 9607 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9608 9609 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9610 9611 /* 9612 * Determine which sense format the user wants. 9613 */ 9614 if (cdb->byte2 & SRS_DESC) 9615 sense_format = SSD_TYPE_DESC; 9616 else 9617 sense_format = SSD_TYPE_FIXED; 9618 9619 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9620 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9621 ctsio->kern_sg_entries = 0; 9622 9623 /* 9624 * struct scsi_sense_data, which is currently set to 256 bytes, is 9625 * larger than the largest allowed value for the length field in the 9626 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9627 */ 9628 ctsio->residual = 0; 9629 ctsio->kern_data_len = cdb->length; 9630 ctsio->kern_total_len = cdb->length; 9631 9632 ctsio->kern_data_resid = 0; 9633 ctsio->kern_rel_offset = 0; 9634 ctsio->kern_sg_entries = 0; 9635 9636 /* 9637 * If we don't have a LUN, we don't have any pending sense. 9638 */ 9639 if (lun == NULL) 9640 goto no_sense; 9641 9642 have_error = 0; 9643 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9644 /* 9645 * Check for pending sense, and then for pending unit attentions. 9646 * Pending sense gets returned first, then pending unit attentions. 9647 */ 9648 mtx_lock(&lun->lun_lock); 9649#ifdef CTL_WITH_CA 9650 if (ctl_is_set(lun->have_ca, initidx)) { 9651 scsi_sense_data_type stored_format; 9652 9653 /* 9654 * Check to see which sense format was used for the stored 9655 * sense data. 9656 */ 9657 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9658 9659 /* 9660 * If the user requested a different sense format than the 9661 * one we stored, then we need to convert it to the other 9662 * format. If we're going from descriptor to fixed format 9663 * sense data, we may lose things in translation, depending 9664 * on what options were used. 9665 * 9666 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9667 * for some reason we'll just copy it out as-is. 9668 */ 9669 if ((stored_format == SSD_TYPE_FIXED) 9670 && (sense_format == SSD_TYPE_DESC)) 9671 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9672 &lun->pending_sense[initidx], 9673 (struct scsi_sense_data_desc *)sense_ptr); 9674 else if ((stored_format == SSD_TYPE_DESC) 9675 && (sense_format == SSD_TYPE_FIXED)) 9676 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9677 &lun->pending_sense[initidx], 9678 (struct scsi_sense_data_fixed *)sense_ptr); 9679 else 9680 memcpy(sense_ptr, &lun->pending_sense[initidx], 9681 ctl_min(sizeof(*sense_ptr), 9682 sizeof(lun->pending_sense[initidx]))); 9683 9684 ctl_clear_mask(lun->have_ca, initidx); 9685 have_error = 1; 9686 } else 9687#endif 9688 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9689 ctl_ua_type ua_type; 9690 9691 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9692 sense_ptr, sense_format); 9693 if (ua_type != CTL_UA_NONE) { 9694 have_error = 1; 9695 /* We're reporting this UA, so clear it */ 9696 lun->pending_ua[initidx] &= ~ua_type; 9697 } 9698 } 9699 mtx_unlock(&lun->lun_lock); 9700 9701 /* 9702 * We already have a pending error, return it. 9703 */ 9704 if (have_error != 0) { 9705 /* 9706 * We report the SCSI status as OK, since the status of the 9707 * request sense command itself is OK. 9708 */ 9709 ctsio->scsi_status = SCSI_STATUS_OK; 9710 9711 /* 9712 * We report 0 for the sense length, because we aren't doing 9713 * autosense in this case. We're reporting sense as 9714 * parameter data. 9715 */ 9716 ctsio->sense_len = 0; 9717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9718 ctsio->be_move_done = ctl_config_move_done; 9719 ctl_datamove((union ctl_io *)ctsio); 9720 9721 return (CTL_RETVAL_COMPLETE); 9722 } 9723 9724no_sense: 9725 9726 /* 9727 * No sense information to report, so we report that everything is 9728 * okay. 9729 */ 9730 ctl_set_sense_data(sense_ptr, 9731 lun, 9732 sense_format, 9733 /*current_error*/ 1, 9734 /*sense_key*/ SSD_KEY_NO_SENSE, 9735 /*asc*/ 0x00, 9736 /*ascq*/ 0x00, 9737 SSD_ELEM_NONE); 9738 9739 ctsio->scsi_status = SCSI_STATUS_OK; 9740 9741 /* 9742 * We report 0 for the sense length, because we aren't doing 9743 * autosense in this case. We're reporting sense as parameter data. 9744 */ 9745 ctsio->sense_len = 0; 9746 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9747 ctsio->be_move_done = ctl_config_move_done; 9748 ctl_datamove((union ctl_io *)ctsio); 9749 9750 return (CTL_RETVAL_COMPLETE); 9751} 9752 9753int 9754ctl_tur(struct ctl_scsiio *ctsio) 9755{ 9756 struct ctl_lun *lun; 9757 9758 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9759 9760 CTL_DEBUG_PRINT(("ctl_tur\n")); 9761 9762 if (lun == NULL) 9763 return (EINVAL); 9764 9765 ctsio->scsi_status = SCSI_STATUS_OK; 9766 ctsio->io_hdr.status = CTL_SUCCESS; 9767 9768 ctl_done((union ctl_io *)ctsio); 9769 9770 return (CTL_RETVAL_COMPLETE); 9771} 9772 9773#ifdef notyet 9774static int 9775ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9776{ 9777 9778} 9779#endif 9780 9781static int 9782ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9783{ 9784 struct scsi_vpd_supported_pages *pages; 9785 int sup_page_size; 9786 struct ctl_lun *lun; 9787 9788 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9789 9790 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9791 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9792 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9793 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9794 ctsio->kern_sg_entries = 0; 9795 9796 if (sup_page_size < alloc_len) { 9797 ctsio->residual = alloc_len - sup_page_size; 9798 ctsio->kern_data_len = sup_page_size; 9799 ctsio->kern_total_len = sup_page_size; 9800 } else { 9801 ctsio->residual = 0; 9802 ctsio->kern_data_len = alloc_len; 9803 ctsio->kern_total_len = alloc_len; 9804 } 9805 ctsio->kern_data_resid = 0; 9806 ctsio->kern_rel_offset = 0; 9807 ctsio->kern_sg_entries = 0; 9808 9809 /* 9810 * The control device is always connected. The disk device, on the 9811 * other hand, may not be online all the time. Need to change this 9812 * to figure out whether the disk device is actually online or not. 9813 */ 9814 if (lun != NULL) 9815 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9816 lun->be_lun->lun_type; 9817 else 9818 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9819 9820 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9821 /* Supported VPD pages */ 9822 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9823 /* Serial Number */ 9824 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9825 /* Device Identification */ 9826 pages->page_list[2] = SVPD_DEVICE_ID; 9827 /* Extended INQUIRY Data */ 9828 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9829 /* Mode Page Policy */ 9830 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9831 /* SCSI Ports */ 9832 pages->page_list[5] = SVPD_SCSI_PORTS; 9833 /* Third-party Copy */ 9834 pages->page_list[6] = SVPD_SCSI_TPC; 9835 /* Block limits */ 9836 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9837 /* Block Device Characteristics */ 9838 pages->page_list[8] = SVPD_BDC; 9839 /* Logical Block Provisioning */ 9840 pages->page_list[9] = SVPD_LBP; 9841 9842 ctsio->scsi_status = SCSI_STATUS_OK; 9843 9844 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9845 ctsio->be_move_done = ctl_config_move_done; 9846 ctl_datamove((union ctl_io *)ctsio); 9847 9848 return (CTL_RETVAL_COMPLETE); 9849} 9850 9851static int 9852ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9853{ 9854 struct scsi_vpd_unit_serial_number *sn_ptr; 9855 struct ctl_lun *lun; 9856 9857 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9858 9859 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9860 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9861 ctsio->kern_sg_entries = 0; 9862 9863 if (sizeof(*sn_ptr) < alloc_len) { 9864 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9865 ctsio->kern_data_len = sizeof(*sn_ptr); 9866 ctsio->kern_total_len = sizeof(*sn_ptr); 9867 } else { 9868 ctsio->residual = 0; 9869 ctsio->kern_data_len = alloc_len; 9870 ctsio->kern_total_len = alloc_len; 9871 } 9872 ctsio->kern_data_resid = 0; 9873 ctsio->kern_rel_offset = 0; 9874 ctsio->kern_sg_entries = 0; 9875 9876 /* 9877 * The control device is always connected. The disk device, on the 9878 * other hand, may not be online all the time. Need to change this 9879 * to figure out whether the disk device is actually online or not. 9880 */ 9881 if (lun != NULL) 9882 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9883 lun->be_lun->lun_type; 9884 else 9885 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9886 9887 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9888 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9889 /* 9890 * If we don't have a LUN, we just leave the serial number as 9891 * all spaces. 9892 */ 9893 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9894 if (lun != NULL) { 9895 strncpy((char *)sn_ptr->serial_num, 9896 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9897 } 9898 ctsio->scsi_status = SCSI_STATUS_OK; 9899 9900 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9901 ctsio->be_move_done = ctl_config_move_done; 9902 ctl_datamove((union ctl_io *)ctsio); 9903 9904 return (CTL_RETVAL_COMPLETE); 9905} 9906 9907 9908static int 9909ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9910{ 9911 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9912 struct ctl_lun *lun; 9913 int data_len; 9914 9915 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9916 9917 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9918 sizeof(struct scsi_vpd_mode_page_policy_descr); 9919 9920 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9921 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9922 ctsio->kern_sg_entries = 0; 9923 9924 if (data_len < alloc_len) { 9925 ctsio->residual = alloc_len - data_len; 9926 ctsio->kern_data_len = data_len; 9927 ctsio->kern_total_len = data_len; 9928 } else { 9929 ctsio->residual = 0; 9930 ctsio->kern_data_len = alloc_len; 9931 ctsio->kern_total_len = alloc_len; 9932 } 9933 ctsio->kern_data_resid = 0; 9934 ctsio->kern_rel_offset = 0; 9935 ctsio->kern_sg_entries = 0; 9936 9937 /* 9938 * The control device is always connected. The disk device, on the 9939 * other hand, may not be online all the time. 9940 */ 9941 if (lun != NULL) 9942 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9943 lun->be_lun->lun_type; 9944 else 9945 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9946 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9947 eid_ptr->page_length = data_len - 4; 9948 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9949 eid_ptr->flags3 = SVPD_EID_V_SUP; 9950 9951 ctsio->scsi_status = SCSI_STATUS_OK; 9952 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9953 ctsio->be_move_done = ctl_config_move_done; 9954 ctl_datamove((union ctl_io *)ctsio); 9955 9956 return (CTL_RETVAL_COMPLETE); 9957} 9958 9959static int 9960ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9961{ 9962 struct scsi_vpd_mode_page_policy *mpp_ptr; 9963 struct ctl_lun *lun; 9964 int data_len; 9965 9966 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9967 9968 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9969 sizeof(struct scsi_vpd_mode_page_policy_descr); 9970 9971 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9972 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9973 ctsio->kern_sg_entries = 0; 9974 9975 if (data_len < alloc_len) { 9976 ctsio->residual = alloc_len - data_len; 9977 ctsio->kern_data_len = data_len; 9978 ctsio->kern_total_len = data_len; 9979 } else { 9980 ctsio->residual = 0; 9981 ctsio->kern_data_len = alloc_len; 9982 ctsio->kern_total_len = alloc_len; 9983 } 9984 ctsio->kern_data_resid = 0; 9985 ctsio->kern_rel_offset = 0; 9986 ctsio->kern_sg_entries = 0; 9987 9988 /* 9989 * The control device is always connected. The disk device, on the 9990 * other hand, may not be online all the time. 9991 */ 9992 if (lun != NULL) 9993 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9994 lun->be_lun->lun_type; 9995 else 9996 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9997 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9998 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9999 mpp_ptr->descr[0].page_code = 0x3f; 10000 mpp_ptr->descr[0].subpage_code = 0xff; 10001 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10002 10003 ctsio->scsi_status = SCSI_STATUS_OK; 10004 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10005 ctsio->be_move_done = ctl_config_move_done; 10006 ctl_datamove((union ctl_io *)ctsio); 10007 10008 return (CTL_RETVAL_COMPLETE); 10009} 10010 10011static int 10012ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10013{ 10014 struct scsi_vpd_device_id *devid_ptr; 10015 struct scsi_vpd_id_descriptor *desc; 10016 struct ctl_softc *ctl_softc; 10017 struct ctl_lun *lun; 10018 struct ctl_port *port; 10019 int data_len; 10020 uint8_t proto; 10021 10022 ctl_softc = control_softc; 10023 10024 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10025 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10026 10027 data_len = sizeof(struct scsi_vpd_device_id) + 10028 sizeof(struct scsi_vpd_id_descriptor) + 10029 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10030 sizeof(struct scsi_vpd_id_descriptor) + 10031 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10032 if (lun && lun->lun_devid) 10033 data_len += lun->lun_devid->len; 10034 if (port->port_devid) 10035 data_len += port->port_devid->len; 10036 if (port->target_devid) 10037 data_len += port->target_devid->len; 10038 10039 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10040 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10041 ctsio->kern_sg_entries = 0; 10042 10043 if (data_len < alloc_len) { 10044 ctsio->residual = alloc_len - data_len; 10045 ctsio->kern_data_len = data_len; 10046 ctsio->kern_total_len = data_len; 10047 } else { 10048 ctsio->residual = 0; 10049 ctsio->kern_data_len = alloc_len; 10050 ctsio->kern_total_len = alloc_len; 10051 } 10052 ctsio->kern_data_resid = 0; 10053 ctsio->kern_rel_offset = 0; 10054 ctsio->kern_sg_entries = 0; 10055 10056 /* 10057 * The control device is always connected. The disk device, on the 10058 * other hand, may not be online all the time. 10059 */ 10060 if (lun != NULL) 10061 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10062 lun->be_lun->lun_type; 10063 else 10064 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10065 devid_ptr->page_code = SVPD_DEVICE_ID; 10066 scsi_ulto2b(data_len - 4, devid_ptr->length); 10067 10068 if (port->port_type == CTL_PORT_FC) 10069 proto = SCSI_PROTO_FC << 4; 10070 else if (port->port_type == CTL_PORT_ISCSI) 10071 proto = SCSI_PROTO_ISCSI << 4; 10072 else 10073 proto = SCSI_PROTO_SPI << 4; 10074 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10075 10076 /* 10077 * We're using a LUN association here. i.e., this device ID is a 10078 * per-LUN identifier. 10079 */ 10080 if (lun && lun->lun_devid) { 10081 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10082 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10083 lun->lun_devid->len); 10084 } 10085 10086 /* 10087 * This is for the WWPN which is a port association. 10088 */ 10089 if (port->port_devid) { 10090 memcpy(desc, port->port_devid->data, port->port_devid->len); 10091 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10092 port->port_devid->len); 10093 } 10094 10095 /* 10096 * This is for the Relative Target Port(type 4h) identifier 10097 */ 10098 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10099 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10100 SVPD_ID_TYPE_RELTARG; 10101 desc->length = 4; 10102 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10103 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10104 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10105 10106 /* 10107 * This is for the Target Port Group(type 5h) identifier 10108 */ 10109 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10110 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10111 SVPD_ID_TYPE_TPORTGRP; 10112 desc->length = 4; 10113 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10114 &desc->identifier[2]); 10115 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10116 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10117 10118 /* 10119 * This is for the Target identifier 10120 */ 10121 if (port->target_devid) { 10122 memcpy(desc, port->target_devid->data, port->target_devid->len); 10123 } 10124 10125 ctsio->scsi_status = SCSI_STATUS_OK; 10126 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10127 ctsio->be_move_done = ctl_config_move_done; 10128 ctl_datamove((union ctl_io *)ctsio); 10129 10130 return (CTL_RETVAL_COMPLETE); 10131} 10132 10133static int 10134ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10135{ 10136 struct ctl_softc *softc = control_softc; 10137 struct scsi_vpd_scsi_ports *sp; 10138 struct scsi_vpd_port_designation *pd; 10139 struct scsi_vpd_port_designation_cont *pdc; 10140 struct ctl_lun *lun; 10141 struct ctl_port *port; 10142 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10143 int num_target_port_groups, single; 10144 10145 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10146 10147 single = ctl_is_single; 10148 if (single) 10149 num_target_port_groups = 1; 10150 else 10151 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10152 num_target_ports = 0; 10153 iid_len = 0; 10154 id_len = 0; 10155 mtx_lock(&softc->ctl_lock); 10156 STAILQ_FOREACH(port, &softc->port_list, links) { 10157 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10158 continue; 10159 if (lun != NULL && 10160 ctl_map_lun_back(port->targ_port, lun->lun) >= 10161 CTL_MAX_LUNS) 10162 continue; 10163 num_target_ports++; 10164 if (port->init_devid) 10165 iid_len += port->init_devid->len; 10166 if (port->port_devid) 10167 id_len += port->port_devid->len; 10168 } 10169 mtx_unlock(&softc->ctl_lock); 10170 10171 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10172 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10173 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10174 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10175 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10176 ctsio->kern_sg_entries = 0; 10177 10178 if (data_len < alloc_len) { 10179 ctsio->residual = alloc_len - data_len; 10180 ctsio->kern_data_len = data_len; 10181 ctsio->kern_total_len = data_len; 10182 } else { 10183 ctsio->residual = 0; 10184 ctsio->kern_data_len = alloc_len; 10185 ctsio->kern_total_len = alloc_len; 10186 } 10187 ctsio->kern_data_resid = 0; 10188 ctsio->kern_rel_offset = 0; 10189 ctsio->kern_sg_entries = 0; 10190 10191 /* 10192 * The control device is always connected. The disk device, on the 10193 * other hand, may not be online all the time. Need to change this 10194 * to figure out whether the disk device is actually online or not. 10195 */ 10196 if (lun != NULL) 10197 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10198 lun->be_lun->lun_type; 10199 else 10200 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10201 10202 sp->page_code = SVPD_SCSI_PORTS; 10203 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10204 sp->page_length); 10205 pd = &sp->design[0]; 10206 10207 mtx_lock(&softc->ctl_lock); 10208 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10209 pg = 0; 10210 else 10211 pg = 1; 10212 for (g = 0; g < num_target_port_groups; g++) { 10213 STAILQ_FOREACH(port, &softc->port_list, links) { 10214 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10215 continue; 10216 if (lun != NULL && 10217 ctl_map_lun_back(port->targ_port, lun->lun) >= 10218 CTL_MAX_LUNS) 10219 continue; 10220 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10221 scsi_ulto2b(p, pd->relative_port_id); 10222 if (port->init_devid && g == pg) { 10223 iid_len = port->init_devid->len; 10224 memcpy(pd->initiator_transportid, 10225 port->init_devid->data, port->init_devid->len); 10226 } else 10227 iid_len = 0; 10228 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10229 pdc = (struct scsi_vpd_port_designation_cont *) 10230 (&pd->initiator_transportid[iid_len]); 10231 if (port->port_devid && g == pg) { 10232 id_len = port->port_devid->len; 10233 memcpy(pdc->target_port_descriptors, 10234 port->port_devid->data, port->port_devid->len); 10235 } else 10236 id_len = 0; 10237 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10238 pd = (struct scsi_vpd_port_designation *) 10239 ((uint8_t *)pdc->target_port_descriptors + id_len); 10240 } 10241 } 10242 mtx_unlock(&softc->ctl_lock); 10243 10244 ctsio->scsi_status = SCSI_STATUS_OK; 10245 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10246 ctsio->be_move_done = ctl_config_move_done; 10247 ctl_datamove((union ctl_io *)ctsio); 10248 10249 return (CTL_RETVAL_COMPLETE); 10250} 10251 10252static int 10253ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10254{ 10255 struct scsi_vpd_block_limits *bl_ptr; 10256 struct ctl_lun *lun; 10257 int bs; 10258 10259 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10260 10261 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10262 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10263 ctsio->kern_sg_entries = 0; 10264 10265 if (sizeof(*bl_ptr) < alloc_len) { 10266 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10267 ctsio->kern_data_len = sizeof(*bl_ptr); 10268 ctsio->kern_total_len = sizeof(*bl_ptr); 10269 } else { 10270 ctsio->residual = 0; 10271 ctsio->kern_data_len = alloc_len; 10272 ctsio->kern_total_len = alloc_len; 10273 } 10274 ctsio->kern_data_resid = 0; 10275 ctsio->kern_rel_offset = 0; 10276 ctsio->kern_sg_entries = 0; 10277 10278 /* 10279 * The control device is always connected. The disk device, on the 10280 * other hand, may not be online all the time. Need to change this 10281 * to figure out whether the disk device is actually online or not. 10282 */ 10283 if (lun != NULL) 10284 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10285 lun->be_lun->lun_type; 10286 else 10287 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10288 10289 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10290 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10291 bl_ptr->max_cmp_write_len = 0xff; 10292 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10293 if (lun != NULL) { 10294 bs = lun->be_lun->blocksize; 10295 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10296 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10297 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10298 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10299 if (lun->be_lun->pblockexp != 0) { 10300 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10301 bl_ptr->opt_unmap_grain); 10302 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10303 bl_ptr->unmap_grain_align); 10304 } 10305 } 10306 } 10307 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10308 10309 ctsio->scsi_status = SCSI_STATUS_OK; 10310 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10311 ctsio->be_move_done = ctl_config_move_done; 10312 ctl_datamove((union ctl_io *)ctsio); 10313 10314 return (CTL_RETVAL_COMPLETE); 10315} 10316 10317static int 10318ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10319{ 10320 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10321 struct ctl_lun *lun; 10322 10323 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10324 10325 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10326 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10327 ctsio->kern_sg_entries = 0; 10328 10329 if (sizeof(*bdc_ptr) < alloc_len) { 10330 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10331 ctsio->kern_data_len = sizeof(*bdc_ptr); 10332 ctsio->kern_total_len = sizeof(*bdc_ptr); 10333 } else { 10334 ctsio->residual = 0; 10335 ctsio->kern_data_len = alloc_len; 10336 ctsio->kern_total_len = alloc_len; 10337 } 10338 ctsio->kern_data_resid = 0; 10339 ctsio->kern_rel_offset = 0; 10340 ctsio->kern_sg_entries = 0; 10341 10342 /* 10343 * The control device is always connected. The disk device, on the 10344 * other hand, may not be online all the time. Need to change this 10345 * to figure out whether the disk device is actually online or not. 10346 */ 10347 if (lun != NULL) 10348 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10349 lun->be_lun->lun_type; 10350 else 10351 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10352 bdc_ptr->page_code = SVPD_BDC; 10353 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10354 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10355 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10356 10357 ctsio->scsi_status = SCSI_STATUS_OK; 10358 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10359 ctsio->be_move_done = ctl_config_move_done; 10360 ctl_datamove((union ctl_io *)ctsio); 10361 10362 return (CTL_RETVAL_COMPLETE); 10363} 10364 10365static int 10366ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10367{ 10368 struct scsi_vpd_logical_block_prov *lbp_ptr; 10369 struct ctl_lun *lun; 10370 10371 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10372 10373 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10374 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10375 ctsio->kern_sg_entries = 0; 10376 10377 if (sizeof(*lbp_ptr) < alloc_len) { 10378 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10379 ctsio->kern_data_len = sizeof(*lbp_ptr); 10380 ctsio->kern_total_len = sizeof(*lbp_ptr); 10381 } else { 10382 ctsio->residual = 0; 10383 ctsio->kern_data_len = alloc_len; 10384 ctsio->kern_total_len = alloc_len; 10385 } 10386 ctsio->kern_data_resid = 0; 10387 ctsio->kern_rel_offset = 0; 10388 ctsio->kern_sg_entries = 0; 10389 10390 /* 10391 * The control device is always connected. The disk device, on the 10392 * other hand, may not be online all the time. Need to change this 10393 * to figure out whether the disk device is actually online or not. 10394 */ 10395 if (lun != NULL) 10396 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10397 lun->be_lun->lun_type; 10398 else 10399 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10400 10401 lbp_ptr->page_code = SVPD_LBP; 10402 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10403 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10404 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10405 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10406 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10407 } 10408 10409 ctsio->scsi_status = SCSI_STATUS_OK; 10410 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10411 ctsio->be_move_done = ctl_config_move_done; 10412 ctl_datamove((union ctl_io *)ctsio); 10413 10414 return (CTL_RETVAL_COMPLETE); 10415} 10416 10417static int 10418ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10419{ 10420 struct scsi_inquiry *cdb; 10421 struct ctl_lun *lun; 10422 int alloc_len, retval; 10423 10424 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10425 cdb = (struct scsi_inquiry *)ctsio->cdb; 10426 10427 retval = CTL_RETVAL_COMPLETE; 10428 10429 alloc_len = scsi_2btoul(cdb->length); 10430 10431 switch (cdb->page_code) { 10432 case SVPD_SUPPORTED_PAGES: 10433 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10434 break; 10435 case SVPD_UNIT_SERIAL_NUMBER: 10436 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10437 break; 10438 case SVPD_DEVICE_ID: 10439 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10440 break; 10441 case SVPD_EXTENDED_INQUIRY_DATA: 10442 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10443 break; 10444 case SVPD_MODE_PAGE_POLICY: 10445 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10446 break; 10447 case SVPD_SCSI_PORTS: 10448 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10449 break; 10450 case SVPD_SCSI_TPC: 10451 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10452 break; 10453 case SVPD_BLOCK_LIMITS: 10454 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10455 break; 10456 case SVPD_BDC: 10457 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10458 break; 10459 case SVPD_LBP: 10460 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10461 break; 10462 default: 10463 ctl_set_invalid_field(ctsio, 10464 /*sks_valid*/ 1, 10465 /*command*/ 1, 10466 /*field*/ 2, 10467 /*bit_valid*/ 0, 10468 /*bit*/ 0); 10469 ctl_done((union ctl_io *)ctsio); 10470 retval = CTL_RETVAL_COMPLETE; 10471 break; 10472 } 10473 10474 return (retval); 10475} 10476 10477static int 10478ctl_inquiry_std(struct ctl_scsiio *ctsio) 10479{ 10480 struct scsi_inquiry_data *inq_ptr; 10481 struct scsi_inquiry *cdb; 10482 struct ctl_softc *ctl_softc; 10483 struct ctl_lun *lun; 10484 char *val; 10485 uint32_t alloc_len; 10486 ctl_port_type port_type; 10487 10488 ctl_softc = control_softc; 10489 10490 /* 10491 * Figure out whether we're talking to a Fibre Channel port or not. 10492 * We treat the ioctl front end, and any SCSI adapters, as packetized 10493 * SCSI front ends. 10494 */ 10495 port_type = ctl_softc->ctl_ports[ 10496 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10497 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10498 port_type = CTL_PORT_SCSI; 10499 10500 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10501 cdb = (struct scsi_inquiry *)ctsio->cdb; 10502 alloc_len = scsi_2btoul(cdb->length); 10503 10504 /* 10505 * We malloc the full inquiry data size here and fill it 10506 * in. If the user only asks for less, we'll give him 10507 * that much. 10508 */ 10509 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10510 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10511 ctsio->kern_sg_entries = 0; 10512 ctsio->kern_data_resid = 0; 10513 ctsio->kern_rel_offset = 0; 10514 10515 if (sizeof(*inq_ptr) < alloc_len) { 10516 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10517 ctsio->kern_data_len = sizeof(*inq_ptr); 10518 ctsio->kern_total_len = sizeof(*inq_ptr); 10519 } else { 10520 ctsio->residual = 0; 10521 ctsio->kern_data_len = alloc_len; 10522 ctsio->kern_total_len = alloc_len; 10523 } 10524 10525 /* 10526 * If we have a LUN configured, report it as connected. Otherwise, 10527 * report that it is offline or no device is supported, depending 10528 * on the value of inquiry_pq_no_lun. 10529 * 10530 * According to the spec (SPC-4 r34), the peripheral qualifier 10531 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10532 * 10533 * "A peripheral device having the specified peripheral device type 10534 * is not connected to this logical unit. However, the device 10535 * server is capable of supporting the specified peripheral device 10536 * type on this logical unit." 10537 * 10538 * According to the same spec, the peripheral qualifier 10539 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10540 * 10541 * "The device server is not capable of supporting a peripheral 10542 * device on this logical unit. For this peripheral qualifier the 10543 * peripheral device type shall be set to 1Fh. All other peripheral 10544 * device type values are reserved for this peripheral qualifier." 10545 * 10546 * Given the text, it would seem that we probably want to report that 10547 * the LUN is offline here. There is no LUN connected, but we can 10548 * support a LUN at the given LUN number. 10549 * 10550 * In the real world, though, it sounds like things are a little 10551 * different: 10552 * 10553 * - Linux, when presented with a LUN with the offline peripheral 10554 * qualifier, will create an sg driver instance for it. So when 10555 * you attach it to CTL, you wind up with a ton of sg driver 10556 * instances. (One for every LUN that Linux bothered to probe.) 10557 * Linux does this despite the fact that it issues a REPORT LUNs 10558 * to LUN 0 to get the inventory of supported LUNs. 10559 * 10560 * - There is other anecdotal evidence (from Emulex folks) about 10561 * arrays that use the offline peripheral qualifier for LUNs that 10562 * are on the "passive" path in an active/passive array. 10563 * 10564 * So the solution is provide a hopefully reasonable default 10565 * (return bad/no LUN) and allow the user to change the behavior 10566 * with a tunable/sysctl variable. 10567 */ 10568 if (lun != NULL) 10569 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10570 lun->be_lun->lun_type; 10571 else if (ctl_softc->inquiry_pq_no_lun == 0) 10572 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10573 else 10574 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10575 10576 /* RMB in byte 2 is 0 */ 10577 inq_ptr->version = SCSI_REV_SPC4; 10578 10579 /* 10580 * According to SAM-3, even if a device only supports a single 10581 * level of LUN addressing, it should still set the HISUP bit: 10582 * 10583 * 4.9.1 Logical unit numbers overview 10584 * 10585 * All logical unit number formats described in this standard are 10586 * hierarchical in structure even when only a single level in that 10587 * hierarchy is used. The HISUP bit shall be set to one in the 10588 * standard INQUIRY data (see SPC-2) when any logical unit number 10589 * format described in this standard is used. Non-hierarchical 10590 * formats are outside the scope of this standard. 10591 * 10592 * Therefore we set the HiSup bit here. 10593 * 10594 * The reponse format is 2, per SPC-3. 10595 */ 10596 inq_ptr->response_format = SID_HiSup | 2; 10597 10598 inq_ptr->additional_length = 10599 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10600 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10601 CTL_DEBUG_PRINT(("additional_length = %d\n", 10602 inq_ptr->additional_length)); 10603 10604 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10605 /* 16 bit addressing */ 10606 if (port_type == CTL_PORT_SCSI) 10607 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10608 /* XXX set the SID_MultiP bit here if we're actually going to 10609 respond on multiple ports */ 10610 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10611 10612 /* 16 bit data bus, synchronous transfers */ 10613 if (port_type == CTL_PORT_SCSI) 10614 inq_ptr->flags = SID_WBus16 | SID_Sync; 10615 /* 10616 * XXX KDM do we want to support tagged queueing on the control 10617 * device at all? 10618 */ 10619 if ((lun == NULL) 10620 || (lun->be_lun->lun_type != T_PROCESSOR)) 10621 inq_ptr->flags |= SID_CmdQue; 10622 /* 10623 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10624 * We have 8 bytes for the vendor name, and 16 bytes for the device 10625 * name and 4 bytes for the revision. 10626 */ 10627 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10628 "vendor")) == NULL) { 10629 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10630 } else { 10631 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10632 strncpy(inq_ptr->vendor, val, 10633 min(sizeof(inq_ptr->vendor), strlen(val))); 10634 } 10635 if (lun == NULL) { 10636 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10637 sizeof(inq_ptr->product)); 10638 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10639 switch (lun->be_lun->lun_type) { 10640 case T_DIRECT: 10641 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10642 sizeof(inq_ptr->product)); 10643 break; 10644 case T_PROCESSOR: 10645 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10646 sizeof(inq_ptr->product)); 10647 break; 10648 default: 10649 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10650 sizeof(inq_ptr->product)); 10651 break; 10652 } 10653 } else { 10654 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10655 strncpy(inq_ptr->product, val, 10656 min(sizeof(inq_ptr->product), strlen(val))); 10657 } 10658 10659 /* 10660 * XXX make this a macro somewhere so it automatically gets 10661 * incremented when we make changes. 10662 */ 10663 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10664 "revision")) == NULL) { 10665 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10666 } else { 10667 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10668 strncpy(inq_ptr->revision, val, 10669 min(sizeof(inq_ptr->revision), strlen(val))); 10670 } 10671 10672 /* 10673 * For parallel SCSI, we support double transition and single 10674 * transition clocking. We also support QAS (Quick Arbitration 10675 * and Selection) and Information Unit transfers on both the 10676 * control and array devices. 10677 */ 10678 if (port_type == CTL_PORT_SCSI) 10679 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10680 SID_SPI_IUS; 10681 10682 /* SAM-5 (no version claimed) */ 10683 scsi_ulto2b(0x00A0, inq_ptr->version1); 10684 /* SPC-4 (no version claimed) */ 10685 scsi_ulto2b(0x0460, inq_ptr->version2); 10686 if (port_type == CTL_PORT_FC) { 10687 /* FCP-2 ANSI INCITS.350:2003 */ 10688 scsi_ulto2b(0x0917, inq_ptr->version3); 10689 } else if (port_type == CTL_PORT_SCSI) { 10690 /* SPI-4 ANSI INCITS.362:200x */ 10691 scsi_ulto2b(0x0B56, inq_ptr->version3); 10692 } else if (port_type == CTL_PORT_ISCSI) { 10693 /* iSCSI (no version claimed) */ 10694 scsi_ulto2b(0x0960, inq_ptr->version3); 10695 } else if (port_type == CTL_PORT_SAS) { 10696 /* SAS (no version claimed) */ 10697 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10698 } 10699 10700 if (lun == NULL) { 10701 /* SBC-3 (no version claimed) */ 10702 scsi_ulto2b(0x04C0, inq_ptr->version4); 10703 } else { 10704 switch (lun->be_lun->lun_type) { 10705 case T_DIRECT: 10706 /* SBC-3 (no version claimed) */ 10707 scsi_ulto2b(0x04C0, inq_ptr->version4); 10708 break; 10709 case T_PROCESSOR: 10710 default: 10711 break; 10712 } 10713 } 10714 10715 ctsio->scsi_status = SCSI_STATUS_OK; 10716 if (ctsio->kern_data_len > 0) { 10717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10718 ctsio->be_move_done = ctl_config_move_done; 10719 ctl_datamove((union ctl_io *)ctsio); 10720 } else { 10721 ctsio->io_hdr.status = CTL_SUCCESS; 10722 ctl_done((union ctl_io *)ctsio); 10723 } 10724 10725 return (CTL_RETVAL_COMPLETE); 10726} 10727 10728int 10729ctl_inquiry(struct ctl_scsiio *ctsio) 10730{ 10731 struct scsi_inquiry *cdb; 10732 int retval; 10733 10734 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10735 10736 cdb = (struct scsi_inquiry *)ctsio->cdb; 10737 if (cdb->byte2 & SI_EVPD) 10738 retval = ctl_inquiry_evpd(ctsio); 10739 else if (cdb->page_code == 0) 10740 retval = ctl_inquiry_std(ctsio); 10741 else { 10742 ctl_set_invalid_field(ctsio, 10743 /*sks_valid*/ 1, 10744 /*command*/ 1, 10745 /*field*/ 2, 10746 /*bit_valid*/ 0, 10747 /*bit*/ 0); 10748 ctl_done((union ctl_io *)ctsio); 10749 return (CTL_RETVAL_COMPLETE); 10750 } 10751 10752 return (retval); 10753} 10754 10755/* 10756 * For known CDB types, parse the LBA and length. 10757 */ 10758static int 10759ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10760{ 10761 if (io->io_hdr.io_type != CTL_IO_SCSI) 10762 return (1); 10763 10764 switch (io->scsiio.cdb[0]) { 10765 case COMPARE_AND_WRITE: { 10766 struct scsi_compare_and_write *cdb; 10767 10768 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10769 10770 *lba = scsi_8btou64(cdb->addr); 10771 *len = cdb->length; 10772 break; 10773 } 10774 case READ_6: 10775 case WRITE_6: { 10776 struct scsi_rw_6 *cdb; 10777 10778 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10779 10780 *lba = scsi_3btoul(cdb->addr); 10781 /* only 5 bits are valid in the most significant address byte */ 10782 *lba &= 0x1fffff; 10783 *len = cdb->length; 10784 break; 10785 } 10786 case READ_10: 10787 case WRITE_10: { 10788 struct scsi_rw_10 *cdb; 10789 10790 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10791 10792 *lba = scsi_4btoul(cdb->addr); 10793 *len = scsi_2btoul(cdb->length); 10794 break; 10795 } 10796 case WRITE_VERIFY_10: { 10797 struct scsi_write_verify_10 *cdb; 10798 10799 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10800 10801 *lba = scsi_4btoul(cdb->addr); 10802 *len = scsi_2btoul(cdb->length); 10803 break; 10804 } 10805 case READ_12: 10806 case WRITE_12: { 10807 struct scsi_rw_12 *cdb; 10808 10809 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10810 10811 *lba = scsi_4btoul(cdb->addr); 10812 *len = scsi_4btoul(cdb->length); 10813 break; 10814 } 10815 case WRITE_VERIFY_12: { 10816 struct scsi_write_verify_12 *cdb; 10817 10818 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10819 10820 *lba = scsi_4btoul(cdb->addr); 10821 *len = scsi_4btoul(cdb->length); 10822 break; 10823 } 10824 case READ_16: 10825 case WRITE_16: { 10826 struct scsi_rw_16 *cdb; 10827 10828 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10829 10830 *lba = scsi_8btou64(cdb->addr); 10831 *len = scsi_4btoul(cdb->length); 10832 break; 10833 } 10834 case WRITE_VERIFY_16: { 10835 struct scsi_write_verify_16 *cdb; 10836 10837 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10838 10839 10840 *lba = scsi_8btou64(cdb->addr); 10841 *len = scsi_4btoul(cdb->length); 10842 break; 10843 } 10844 case WRITE_SAME_10: { 10845 struct scsi_write_same_10 *cdb; 10846 10847 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10848 10849 *lba = scsi_4btoul(cdb->addr); 10850 *len = scsi_2btoul(cdb->length); 10851 break; 10852 } 10853 case WRITE_SAME_16: { 10854 struct scsi_write_same_16 *cdb; 10855 10856 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10857 10858 *lba = scsi_8btou64(cdb->addr); 10859 *len = scsi_4btoul(cdb->length); 10860 break; 10861 } 10862 case VERIFY_10: { 10863 struct scsi_verify_10 *cdb; 10864 10865 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10866 10867 *lba = scsi_4btoul(cdb->addr); 10868 *len = scsi_2btoul(cdb->length); 10869 break; 10870 } 10871 case VERIFY_12: { 10872 struct scsi_verify_12 *cdb; 10873 10874 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10875 10876 *lba = scsi_4btoul(cdb->addr); 10877 *len = scsi_4btoul(cdb->length); 10878 break; 10879 } 10880 case VERIFY_16: { 10881 struct scsi_verify_16 *cdb; 10882 10883 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10884 10885 *lba = scsi_8btou64(cdb->addr); 10886 *len = scsi_4btoul(cdb->length); 10887 break; 10888 } 10889 case UNMAP: { 10890 *lba = 0; 10891 *len = UINT64_MAX; 10892 break; 10893 } 10894 default: 10895 return (1); 10896 break; /* NOTREACHED */ 10897 } 10898 10899 return (0); 10900} 10901 10902static ctl_action 10903ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10904{ 10905 uint64_t endlba1, endlba2; 10906 10907 endlba1 = lba1 + len1 - 1; 10908 endlba2 = lba2 + len2 - 1; 10909 10910 if ((endlba1 < lba2) 10911 || (endlba2 < lba1)) 10912 return (CTL_ACTION_PASS); 10913 else 10914 return (CTL_ACTION_BLOCK); 10915} 10916 10917static int 10918ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10919{ 10920 struct ctl_ptr_len_flags *ptrlen; 10921 struct scsi_unmap_desc *buf, *end, *range; 10922 uint64_t lba; 10923 uint32_t len; 10924 10925 /* If not UNMAP -- go other way. */ 10926 if (io->io_hdr.io_type != CTL_IO_SCSI || 10927 io->scsiio.cdb[0] != UNMAP) 10928 return (CTL_ACTION_ERROR); 10929 10930 /* If UNMAP without data -- block and wait for data. */ 10931 ptrlen = (struct ctl_ptr_len_flags *) 10932 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10933 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10934 ptrlen->ptr == NULL) 10935 return (CTL_ACTION_BLOCK); 10936 10937 /* UNMAP with data -- check for collision. */ 10938 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10939 end = buf + ptrlen->len / sizeof(*buf); 10940 for (range = buf; range < end; range++) { 10941 lba = scsi_8btou64(range->lba); 10942 len = scsi_4btoul(range->length); 10943 if ((lba < lba2 + len2) && (lba + len > lba2)) 10944 return (CTL_ACTION_BLOCK); 10945 } 10946 return (CTL_ACTION_PASS); 10947} 10948 10949static ctl_action 10950ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10951{ 10952 uint64_t lba1, lba2; 10953 uint64_t len1, len2; 10954 int retval; 10955 10956 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10957 return (CTL_ACTION_ERROR); 10958 10959 retval = ctl_extent_check_unmap(io2, lba1, len1); 10960 if (retval != CTL_ACTION_ERROR) 10961 return (retval); 10962 10963 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10964 return (CTL_ACTION_ERROR); 10965 10966 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10967} 10968 10969static ctl_action 10970ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10971 union ctl_io *ooa_io) 10972{ 10973 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10974 ctl_serialize_action *serialize_row; 10975 10976 /* 10977 * The initiator attempted multiple untagged commands at the same 10978 * time. Can't do that. 10979 */ 10980 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10981 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10982 && ((pending_io->io_hdr.nexus.targ_port == 10983 ooa_io->io_hdr.nexus.targ_port) 10984 && (pending_io->io_hdr.nexus.initid.id == 10985 ooa_io->io_hdr.nexus.initid.id)) 10986 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10987 return (CTL_ACTION_OVERLAP); 10988 10989 /* 10990 * The initiator attempted to send multiple tagged commands with 10991 * the same ID. (It's fine if different initiators have the same 10992 * tag ID.) 10993 * 10994 * Even if all of those conditions are true, we don't kill the I/O 10995 * if the command ahead of us has been aborted. We won't end up 10996 * sending it to the FETD, and it's perfectly legal to resend a 10997 * command with the same tag number as long as the previous 10998 * instance of this tag number has been aborted somehow. 10999 */ 11000 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11001 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11002 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11003 && ((pending_io->io_hdr.nexus.targ_port == 11004 ooa_io->io_hdr.nexus.targ_port) 11005 && (pending_io->io_hdr.nexus.initid.id == 11006 ooa_io->io_hdr.nexus.initid.id)) 11007 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11008 return (CTL_ACTION_OVERLAP_TAG); 11009 11010 /* 11011 * If we get a head of queue tag, SAM-3 says that we should 11012 * immediately execute it. 11013 * 11014 * What happens if this command would normally block for some other 11015 * reason? e.g. a request sense with a head of queue tag 11016 * immediately after a write. Normally that would block, but this 11017 * will result in its getting executed immediately... 11018 * 11019 * We currently return "pass" instead of "skip", so we'll end up 11020 * going through the rest of the queue to check for overlapped tags. 11021 * 11022 * XXX KDM check for other types of blockage first?? 11023 */ 11024 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11025 return (CTL_ACTION_PASS); 11026 11027 /* 11028 * Ordered tags have to block until all items ahead of them 11029 * have completed. If we get called with an ordered tag, we always 11030 * block, if something else is ahead of us in the queue. 11031 */ 11032 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11033 return (CTL_ACTION_BLOCK); 11034 11035 /* 11036 * Simple tags get blocked until all head of queue and ordered tags 11037 * ahead of them have completed. I'm lumping untagged commands in 11038 * with simple tags here. XXX KDM is that the right thing to do? 11039 */ 11040 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11041 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11042 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11043 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11044 return (CTL_ACTION_BLOCK); 11045 11046 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11047 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11048 11049 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11050 11051 switch (serialize_row[pending_entry->seridx]) { 11052 case CTL_SER_BLOCK: 11053 return (CTL_ACTION_BLOCK); 11054 case CTL_SER_EXTENT: 11055 return (ctl_extent_check(pending_io, ooa_io)); 11056 case CTL_SER_EXTENTOPT: 11057 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11058 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11059 return (ctl_extent_check(pending_io, ooa_io)); 11060 /* FALLTHROUGH */ 11061 case CTL_SER_PASS: 11062 return (CTL_ACTION_PASS); 11063 case CTL_SER_BLOCKOPT: 11064 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11065 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11066 return (CTL_ACTION_BLOCK); 11067 return (CTL_ACTION_PASS); 11068 case CTL_SER_SKIP: 11069 return (CTL_ACTION_SKIP); 11070 default: 11071 panic("invalid serialization value %d", 11072 serialize_row[pending_entry->seridx]); 11073 } 11074 11075 return (CTL_ACTION_ERROR); 11076} 11077 11078/* 11079 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11080 * Assumptions: 11081 * - pending_io is generally either incoming, or on the blocked queue 11082 * - starting I/O is the I/O we want to start the check with. 11083 */ 11084static ctl_action 11085ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11086 union ctl_io *starting_io) 11087{ 11088 union ctl_io *ooa_io; 11089 ctl_action action; 11090 11091 mtx_assert(&lun->lun_lock, MA_OWNED); 11092 11093 /* 11094 * Run back along the OOA queue, starting with the current 11095 * blocked I/O and going through every I/O before it on the 11096 * queue. If starting_io is NULL, we'll just end up returning 11097 * CTL_ACTION_PASS. 11098 */ 11099 for (ooa_io = starting_io; ooa_io != NULL; 11100 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11101 ooa_links)){ 11102 11103 /* 11104 * This routine just checks to see whether 11105 * cur_blocked is blocked by ooa_io, which is ahead 11106 * of it in the queue. It doesn't queue/dequeue 11107 * cur_blocked. 11108 */ 11109 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11110 switch (action) { 11111 case CTL_ACTION_BLOCK: 11112 case CTL_ACTION_OVERLAP: 11113 case CTL_ACTION_OVERLAP_TAG: 11114 case CTL_ACTION_SKIP: 11115 case CTL_ACTION_ERROR: 11116 return (action); 11117 break; /* NOTREACHED */ 11118 case CTL_ACTION_PASS: 11119 break; 11120 default: 11121 panic("invalid action %d", action); 11122 break; /* NOTREACHED */ 11123 } 11124 } 11125 11126 return (CTL_ACTION_PASS); 11127} 11128 11129/* 11130 * Assumptions: 11131 * - An I/O has just completed, and has been removed from the per-LUN OOA 11132 * queue, so some items on the blocked queue may now be unblocked. 11133 */ 11134static int 11135ctl_check_blocked(struct ctl_lun *lun) 11136{ 11137 union ctl_io *cur_blocked, *next_blocked; 11138 11139 mtx_assert(&lun->lun_lock, MA_OWNED); 11140 11141 /* 11142 * Run forward from the head of the blocked queue, checking each 11143 * entry against the I/Os prior to it on the OOA queue to see if 11144 * there is still any blockage. 11145 * 11146 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11147 * with our removing a variable on it while it is traversing the 11148 * list. 11149 */ 11150 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11151 cur_blocked != NULL; cur_blocked = next_blocked) { 11152 union ctl_io *prev_ooa; 11153 ctl_action action; 11154 11155 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11156 blocked_links); 11157 11158 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11159 ctl_ooaq, ooa_links); 11160 11161 /* 11162 * If cur_blocked happens to be the first item in the OOA 11163 * queue now, prev_ooa will be NULL, and the action 11164 * returned will just be CTL_ACTION_PASS. 11165 */ 11166 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11167 11168 switch (action) { 11169 case CTL_ACTION_BLOCK: 11170 /* Nothing to do here, still blocked */ 11171 break; 11172 case CTL_ACTION_OVERLAP: 11173 case CTL_ACTION_OVERLAP_TAG: 11174 /* 11175 * This shouldn't happen! In theory we've already 11176 * checked this command for overlap... 11177 */ 11178 break; 11179 case CTL_ACTION_PASS: 11180 case CTL_ACTION_SKIP: { 11181 struct ctl_softc *softc; 11182 const struct ctl_cmd_entry *entry; 11183 uint32_t initidx; 11184 int isc_retval; 11185 11186 /* 11187 * The skip case shouldn't happen, this transaction 11188 * should have never made it onto the blocked queue. 11189 */ 11190 /* 11191 * This I/O is no longer blocked, we can remove it 11192 * from the blocked queue. Since this is a TAILQ 11193 * (doubly linked list), we can do O(1) removals 11194 * from any place on the list. 11195 */ 11196 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11197 blocked_links); 11198 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11199 11200 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11201 /* 11202 * Need to send IO back to original side to 11203 * run 11204 */ 11205 union ctl_ha_msg msg_info; 11206 11207 msg_info.hdr.original_sc = 11208 cur_blocked->io_hdr.original_sc; 11209 msg_info.hdr.serializing_sc = cur_blocked; 11210 msg_info.hdr.msg_type = CTL_MSG_R2R; 11211 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11212 &msg_info, sizeof(msg_info), 0)) > 11213 CTL_HA_STATUS_SUCCESS) { 11214 printf("CTL:Check Blocked error from " 11215 "ctl_ha_msg_send %d\n", 11216 isc_retval); 11217 } 11218 break; 11219 } 11220 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11221 softc = control_softc; 11222 11223 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11224 11225 /* 11226 * Check this I/O for LUN state changes that may 11227 * have happened while this command was blocked. 11228 * The LUN state may have been changed by a command 11229 * ahead of us in the queue, so we need to re-check 11230 * for any states that can be caused by SCSI 11231 * commands. 11232 */ 11233 if (ctl_scsiio_lun_check(softc, lun, entry, 11234 &cur_blocked->scsiio) == 0) { 11235 cur_blocked->io_hdr.flags |= 11236 CTL_FLAG_IS_WAS_ON_RTR; 11237 ctl_enqueue_rtr(cur_blocked); 11238 } else 11239 ctl_done(cur_blocked); 11240 break; 11241 } 11242 default: 11243 /* 11244 * This probably shouldn't happen -- we shouldn't 11245 * get CTL_ACTION_ERROR, or anything else. 11246 */ 11247 break; 11248 } 11249 } 11250 11251 return (CTL_RETVAL_COMPLETE); 11252} 11253 11254/* 11255 * This routine (with one exception) checks LUN flags that can be set by 11256 * commands ahead of us in the OOA queue. These flags have to be checked 11257 * when a command initially comes in, and when we pull a command off the 11258 * blocked queue and are preparing to execute it. The reason we have to 11259 * check these flags for commands on the blocked queue is that the LUN 11260 * state may have been changed by a command ahead of us while we're on the 11261 * blocked queue. 11262 * 11263 * Ordering is somewhat important with these checks, so please pay 11264 * careful attention to the placement of any new checks. 11265 */ 11266static int 11267ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11268 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11269{ 11270 int retval; 11271 uint32_t residx; 11272 11273 retval = 0; 11274 11275 mtx_assert(&lun->lun_lock, MA_OWNED); 11276 11277 /* 11278 * If this shelf is a secondary shelf controller, we have to reject 11279 * any media access commands. 11280 */ 11281#if 0 11282 /* No longer needed for HA */ 11283 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11284 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11285 ctl_set_lun_standby(ctsio); 11286 retval = 1; 11287 goto bailout; 11288 } 11289#endif 11290 11291 /* 11292 * Check for a reservation conflict. If this command isn't allowed 11293 * even on reserved LUNs, and if this initiator isn't the one who 11294 * reserved us, reject the command with a reservation conflict. 11295 */ 11296 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11297 if ((lun->flags & CTL_LUN_RESERVED) 11298 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11299 if (lun->res_idx != residx) { 11300 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11301 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11302 retval = 1; 11303 goto bailout; 11304 } 11305 } 11306 11307 if ((lun->flags & CTL_LUN_PR_RESERVED) 11308 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11309 /* 11310 * if we aren't registered or it's a res holder type 11311 * reservation and this isn't the res holder then set a 11312 * conflict. 11313 * NOTE: Commands which might be allowed on write exclusive 11314 * type reservations are checked in the particular command 11315 * for a conflict. Read and SSU are the only ones. 11316 */ 11317 if (!lun->per_res[residx].registered 11318 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11319 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11320 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11321 retval = 1; 11322 goto bailout; 11323 } 11324 11325 } 11326 11327 if ((lun->flags & CTL_LUN_OFFLINE) 11328 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11329 ctl_set_lun_not_ready(ctsio); 11330 retval = 1; 11331 goto bailout; 11332 } 11333 11334 /* 11335 * If the LUN is stopped, see if this particular command is allowed 11336 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11337 */ 11338 if ((lun->flags & CTL_LUN_STOPPED) 11339 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11340 /* "Logical unit not ready, initializing cmd. required" */ 11341 ctl_set_lun_stopped(ctsio); 11342 retval = 1; 11343 goto bailout; 11344 } 11345 11346 if ((lun->flags & CTL_LUN_INOPERABLE) 11347 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11348 /* "Medium format corrupted" */ 11349 ctl_set_medium_format_corrupted(ctsio); 11350 retval = 1; 11351 goto bailout; 11352 } 11353 11354bailout: 11355 return (retval); 11356 11357} 11358 11359static void 11360ctl_failover_io(union ctl_io *io, int have_lock) 11361{ 11362 ctl_set_busy(&io->scsiio); 11363 ctl_done(io); 11364} 11365 11366static void 11367ctl_failover(void) 11368{ 11369 struct ctl_lun *lun; 11370 struct ctl_softc *ctl_softc; 11371 union ctl_io *next_io, *pending_io; 11372 union ctl_io *io; 11373 int lun_idx; 11374 int i; 11375 11376 ctl_softc = control_softc; 11377 11378 mtx_lock(&ctl_softc->ctl_lock); 11379 /* 11380 * Remove any cmds from the other SC from the rtr queue. These 11381 * will obviously only be for LUNs for which we're the primary. 11382 * We can't send status or get/send data for these commands. 11383 * Since they haven't been executed yet, we can just remove them. 11384 * We'll either abort them or delete them below, depending on 11385 * which HA mode we're in. 11386 */ 11387#ifdef notyet 11388 mtx_lock(&ctl_softc->queue_lock); 11389 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11390 io != NULL; io = next_io) { 11391 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11392 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11393 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11394 ctl_io_hdr, links); 11395 } 11396 mtx_unlock(&ctl_softc->queue_lock); 11397#endif 11398 11399 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11400 lun = ctl_softc->ctl_luns[lun_idx]; 11401 if (lun==NULL) 11402 continue; 11403 11404 /* 11405 * Processor LUNs are primary on both sides. 11406 * XXX will this always be true? 11407 */ 11408 if (lun->be_lun->lun_type == T_PROCESSOR) 11409 continue; 11410 11411 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11412 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11413 printf("FAILOVER: primary lun %d\n", lun_idx); 11414 /* 11415 * Remove all commands from the other SC. First from the 11416 * blocked queue then from the ooa queue. Once we have 11417 * removed them. Call ctl_check_blocked to see if there 11418 * is anything that can run. 11419 */ 11420 for (io = (union ctl_io *)TAILQ_FIRST( 11421 &lun->blocked_queue); io != NULL; io = next_io) { 11422 11423 next_io = (union ctl_io *)TAILQ_NEXT( 11424 &io->io_hdr, blocked_links); 11425 11426 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11427 TAILQ_REMOVE(&lun->blocked_queue, 11428 &io->io_hdr,blocked_links); 11429 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11430 TAILQ_REMOVE(&lun->ooa_queue, 11431 &io->io_hdr, ooa_links); 11432 11433 ctl_free_io(io); 11434 } 11435 } 11436 11437 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11438 io != NULL; io = next_io) { 11439 11440 next_io = (union ctl_io *)TAILQ_NEXT( 11441 &io->io_hdr, ooa_links); 11442 11443 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11444 11445 TAILQ_REMOVE(&lun->ooa_queue, 11446 &io->io_hdr, 11447 ooa_links); 11448 11449 ctl_free_io(io); 11450 } 11451 } 11452 ctl_check_blocked(lun); 11453 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11454 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11455 11456 printf("FAILOVER: primary lun %d\n", lun_idx); 11457 /* 11458 * Abort all commands from the other SC. We can't 11459 * send status back for them now. These should get 11460 * cleaned up when they are completed or come out 11461 * for a datamove operation. 11462 */ 11463 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11464 io != NULL; io = next_io) { 11465 next_io = (union ctl_io *)TAILQ_NEXT( 11466 &io->io_hdr, ooa_links); 11467 11468 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11469 io->io_hdr.flags |= CTL_FLAG_ABORT; 11470 } 11471 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11472 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11473 11474 printf("FAILOVER: secondary lun %d\n", lun_idx); 11475 11476 lun->flags |= CTL_LUN_PRIMARY_SC; 11477 11478 /* 11479 * We send all I/O that was sent to this controller 11480 * and redirected to the other side back with 11481 * busy status, and have the initiator retry it. 11482 * Figuring out how much data has been transferred, 11483 * etc. and picking up where we left off would be 11484 * very tricky. 11485 * 11486 * XXX KDM need to remove I/O from the blocked 11487 * queue as well! 11488 */ 11489 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11490 &lun->ooa_queue); pending_io != NULL; 11491 pending_io = next_io) { 11492 11493 next_io = (union ctl_io *)TAILQ_NEXT( 11494 &pending_io->io_hdr, ooa_links); 11495 11496 pending_io->io_hdr.flags &= 11497 ~CTL_FLAG_SENT_2OTHER_SC; 11498 11499 if (pending_io->io_hdr.flags & 11500 CTL_FLAG_IO_ACTIVE) { 11501 pending_io->io_hdr.flags |= 11502 CTL_FLAG_FAILOVER; 11503 } else { 11504 ctl_set_busy(&pending_io->scsiio); 11505 ctl_done(pending_io); 11506 } 11507 } 11508 11509 /* 11510 * Build Unit Attention 11511 */ 11512 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11513 lun->pending_ua[i] |= 11514 CTL_UA_ASYM_ACC_CHANGE; 11515 } 11516 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11517 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11518 printf("FAILOVER: secondary lun %d\n", lun_idx); 11519 /* 11520 * if the first io on the OOA is not on the RtR queue 11521 * add it. 11522 */ 11523 lun->flags |= CTL_LUN_PRIMARY_SC; 11524 11525 pending_io = (union ctl_io *)TAILQ_FIRST( 11526 &lun->ooa_queue); 11527 if (pending_io==NULL) { 11528 printf("Nothing on OOA queue\n"); 11529 continue; 11530 } 11531 11532 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11533 if ((pending_io->io_hdr.flags & 11534 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11535 pending_io->io_hdr.flags |= 11536 CTL_FLAG_IS_WAS_ON_RTR; 11537 ctl_enqueue_rtr(pending_io); 11538 } 11539#if 0 11540 else 11541 { 11542 printf("Tag 0x%04x is running\n", 11543 pending_io->scsiio.tag_num); 11544 } 11545#endif 11546 11547 next_io = (union ctl_io *)TAILQ_NEXT( 11548 &pending_io->io_hdr, ooa_links); 11549 for (pending_io=next_io; pending_io != NULL; 11550 pending_io = next_io) { 11551 pending_io->io_hdr.flags &= 11552 ~CTL_FLAG_SENT_2OTHER_SC; 11553 next_io = (union ctl_io *)TAILQ_NEXT( 11554 &pending_io->io_hdr, ooa_links); 11555 if (pending_io->io_hdr.flags & 11556 CTL_FLAG_IS_WAS_ON_RTR) { 11557#if 0 11558 printf("Tag 0x%04x is running\n", 11559 pending_io->scsiio.tag_num); 11560#endif 11561 continue; 11562 } 11563 11564 switch (ctl_check_ooa(lun, pending_io, 11565 (union ctl_io *)TAILQ_PREV( 11566 &pending_io->io_hdr, ctl_ooaq, 11567 ooa_links))) { 11568 11569 case CTL_ACTION_BLOCK: 11570 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11571 &pending_io->io_hdr, 11572 blocked_links); 11573 pending_io->io_hdr.flags |= 11574 CTL_FLAG_BLOCKED; 11575 break; 11576 case CTL_ACTION_PASS: 11577 case CTL_ACTION_SKIP: 11578 pending_io->io_hdr.flags |= 11579 CTL_FLAG_IS_WAS_ON_RTR; 11580 ctl_enqueue_rtr(pending_io); 11581 break; 11582 case CTL_ACTION_OVERLAP: 11583 ctl_set_overlapped_cmd( 11584 (struct ctl_scsiio *)pending_io); 11585 ctl_done(pending_io); 11586 break; 11587 case CTL_ACTION_OVERLAP_TAG: 11588 ctl_set_overlapped_tag( 11589 (struct ctl_scsiio *)pending_io, 11590 pending_io->scsiio.tag_num & 0xff); 11591 ctl_done(pending_io); 11592 break; 11593 case CTL_ACTION_ERROR: 11594 default: 11595 ctl_set_internal_failure( 11596 (struct ctl_scsiio *)pending_io, 11597 0, // sks_valid 11598 0); //retry count 11599 ctl_done(pending_io); 11600 break; 11601 } 11602 } 11603 11604 /* 11605 * Build Unit Attention 11606 */ 11607 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11608 lun->pending_ua[i] |= 11609 CTL_UA_ASYM_ACC_CHANGE; 11610 } 11611 } else { 11612 panic("Unhandled HA mode failover, LUN flags = %#x, " 11613 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11614 } 11615 } 11616 ctl_pause_rtr = 0; 11617 mtx_unlock(&ctl_softc->ctl_lock); 11618} 11619 11620static int 11621ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11622{ 11623 struct ctl_lun *lun; 11624 const struct ctl_cmd_entry *entry; 11625 uint32_t initidx, targ_lun; 11626 int retval; 11627 11628 retval = 0; 11629 11630 lun = NULL; 11631 11632 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11633 if ((targ_lun < CTL_MAX_LUNS) 11634 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11635 lun = ctl_softc->ctl_luns[targ_lun]; 11636 /* 11637 * If the LUN is invalid, pretend that it doesn't exist. 11638 * It will go away as soon as all pending I/O has been 11639 * completed. 11640 */ 11641 if (lun->flags & CTL_LUN_DISABLED) { 11642 lun = NULL; 11643 } else { 11644 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11645 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11646 lun->be_lun; 11647 if (lun->be_lun->lun_type == T_PROCESSOR) { 11648 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11649 } 11650 11651 /* 11652 * Every I/O goes into the OOA queue for a 11653 * particular LUN, and stays there until completion. 11654 */ 11655 mtx_lock(&lun->lun_lock); 11656 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11657 ooa_links); 11658 } 11659 } else { 11660 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11661 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11662 } 11663 11664 /* Get command entry and return error if it is unsuppotyed. */ 11665 entry = ctl_validate_command(ctsio); 11666 if (entry == NULL) { 11667 if (lun) 11668 mtx_unlock(&lun->lun_lock); 11669 return (retval); 11670 } 11671 11672 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11673 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11674 11675 /* 11676 * Check to see whether we can send this command to LUNs that don't 11677 * exist. This should pretty much only be the case for inquiry 11678 * and request sense. Further checks, below, really require having 11679 * a LUN, so we can't really check the command anymore. Just put 11680 * it on the rtr queue. 11681 */ 11682 if (lun == NULL) { 11683 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11684 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11685 ctl_enqueue_rtr((union ctl_io *)ctsio); 11686 return (retval); 11687 } 11688 11689 ctl_set_unsupported_lun(ctsio); 11690 ctl_done((union ctl_io *)ctsio); 11691 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11692 return (retval); 11693 } else { 11694 /* 11695 * Make sure we support this particular command on this LUN. 11696 * e.g., we don't support writes to the control LUN. 11697 */ 11698 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11699 mtx_unlock(&lun->lun_lock); 11700 ctl_set_invalid_opcode(ctsio); 11701 ctl_done((union ctl_io *)ctsio); 11702 return (retval); 11703 } 11704 } 11705 11706 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11707 11708#ifdef CTL_WITH_CA 11709 /* 11710 * If we've got a request sense, it'll clear the contingent 11711 * allegiance condition. Otherwise, if we have a CA condition for 11712 * this initiator, clear it, because it sent down a command other 11713 * than request sense. 11714 */ 11715 if ((ctsio->cdb[0] != REQUEST_SENSE) 11716 && (ctl_is_set(lun->have_ca, initidx))) 11717 ctl_clear_mask(lun->have_ca, initidx); 11718#endif 11719 11720 /* 11721 * If the command has this flag set, it handles its own unit 11722 * attention reporting, we shouldn't do anything. Otherwise we 11723 * check for any pending unit attentions, and send them back to the 11724 * initiator. We only do this when a command initially comes in, 11725 * not when we pull it off the blocked queue. 11726 * 11727 * According to SAM-3, section 5.3.2, the order that things get 11728 * presented back to the host is basically unit attentions caused 11729 * by some sort of reset event, busy status, reservation conflicts 11730 * or task set full, and finally any other status. 11731 * 11732 * One issue here is that some of the unit attentions we report 11733 * don't fall into the "reset" category (e.g. "reported luns data 11734 * has changed"). So reporting it here, before the reservation 11735 * check, may be technically wrong. I guess the only thing to do 11736 * would be to check for and report the reset events here, and then 11737 * check for the other unit attention types after we check for a 11738 * reservation conflict. 11739 * 11740 * XXX KDM need to fix this 11741 */ 11742 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11743 ctl_ua_type ua_type; 11744 11745 ua_type = lun->pending_ua[initidx]; 11746 if (ua_type != CTL_UA_NONE) { 11747 scsi_sense_data_type sense_format; 11748 11749 if (lun != NULL) 11750 sense_format = (lun->flags & 11751 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11752 SSD_TYPE_FIXED; 11753 else 11754 sense_format = SSD_TYPE_FIXED; 11755 11756 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11757 sense_format); 11758 if (ua_type != CTL_UA_NONE) { 11759 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11760 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11761 CTL_AUTOSENSE; 11762 ctsio->sense_len = SSD_FULL_SIZE; 11763 lun->pending_ua[initidx] &= ~ua_type; 11764 mtx_unlock(&lun->lun_lock); 11765 ctl_done((union ctl_io *)ctsio); 11766 return (retval); 11767 } 11768 } 11769 } 11770 11771 11772 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11773 mtx_unlock(&lun->lun_lock); 11774 ctl_done((union ctl_io *)ctsio); 11775 return (retval); 11776 } 11777 11778 /* 11779 * XXX CHD this is where we want to send IO to other side if 11780 * this LUN is secondary on this SC. We will need to make a copy 11781 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11782 * the copy we send as FROM_OTHER. 11783 * We also need to stuff the address of the original IO so we can 11784 * find it easily. Something similar will need be done on the other 11785 * side so when we are done we can find the copy. 11786 */ 11787 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11788 union ctl_ha_msg msg_info; 11789 int isc_retval; 11790 11791 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11792 11793 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11794 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11795#if 0 11796 printf("1. ctsio %p\n", ctsio); 11797#endif 11798 msg_info.hdr.serializing_sc = NULL; 11799 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11800 msg_info.scsi.tag_num = ctsio->tag_num; 11801 msg_info.scsi.tag_type = ctsio->tag_type; 11802 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11803 11804 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11805 11806 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11807 (void *)&msg_info, sizeof(msg_info), 0)) > 11808 CTL_HA_STATUS_SUCCESS) { 11809 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11810 isc_retval); 11811 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11812 } else { 11813#if 0 11814 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11815#endif 11816 } 11817 11818 /* 11819 * XXX KDM this I/O is off the incoming queue, but hasn't 11820 * been inserted on any other queue. We may need to come 11821 * up with a holding queue while we wait for serialization 11822 * so that we have an idea of what we're waiting for from 11823 * the other side. 11824 */ 11825 mtx_unlock(&lun->lun_lock); 11826 return (retval); 11827 } 11828 11829 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11830 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11831 ctl_ooaq, ooa_links))) { 11832 case CTL_ACTION_BLOCK: 11833 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11834 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11835 blocked_links); 11836 mtx_unlock(&lun->lun_lock); 11837 return (retval); 11838 case CTL_ACTION_PASS: 11839 case CTL_ACTION_SKIP: 11840 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11841 mtx_unlock(&lun->lun_lock); 11842 ctl_enqueue_rtr((union ctl_io *)ctsio); 11843 break; 11844 case CTL_ACTION_OVERLAP: 11845 mtx_unlock(&lun->lun_lock); 11846 ctl_set_overlapped_cmd(ctsio); 11847 ctl_done((union ctl_io *)ctsio); 11848 break; 11849 case CTL_ACTION_OVERLAP_TAG: 11850 mtx_unlock(&lun->lun_lock); 11851 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11852 ctl_done((union ctl_io *)ctsio); 11853 break; 11854 case CTL_ACTION_ERROR: 11855 default: 11856 mtx_unlock(&lun->lun_lock); 11857 ctl_set_internal_failure(ctsio, 11858 /*sks_valid*/ 0, 11859 /*retry_count*/ 0); 11860 ctl_done((union ctl_io *)ctsio); 11861 break; 11862 } 11863 return (retval); 11864} 11865 11866const struct ctl_cmd_entry * 11867ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11868{ 11869 const struct ctl_cmd_entry *entry; 11870 int service_action; 11871 11872 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11873 if (sa) 11874 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11875 if (entry->flags & CTL_CMD_FLAG_SA5) { 11876 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11877 entry = &((const struct ctl_cmd_entry *) 11878 entry->execute)[service_action]; 11879 } 11880 return (entry); 11881} 11882 11883const struct ctl_cmd_entry * 11884ctl_validate_command(struct ctl_scsiio *ctsio) 11885{ 11886 const struct ctl_cmd_entry *entry; 11887 int i, sa; 11888 uint8_t diff; 11889 11890 entry = ctl_get_cmd_entry(ctsio, &sa); 11891 if (entry->execute == NULL) { 11892 if (sa) 11893 ctl_set_invalid_field(ctsio, 11894 /*sks_valid*/ 1, 11895 /*command*/ 1, 11896 /*field*/ 1, 11897 /*bit_valid*/ 1, 11898 /*bit*/ 4); 11899 else 11900 ctl_set_invalid_opcode(ctsio); 11901 ctl_done((union ctl_io *)ctsio); 11902 return (NULL); 11903 } 11904 KASSERT(entry->length > 0, 11905 ("Not defined length for command 0x%02x/0x%02x", 11906 ctsio->cdb[0], ctsio->cdb[1])); 11907 for (i = 1; i < entry->length; i++) { 11908 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11909 if (diff == 0) 11910 continue; 11911 ctl_set_invalid_field(ctsio, 11912 /*sks_valid*/ 1, 11913 /*command*/ 1, 11914 /*field*/ i, 11915 /*bit_valid*/ 1, 11916 /*bit*/ fls(diff) - 1); 11917 ctl_done((union ctl_io *)ctsio); 11918 return (NULL); 11919 } 11920 return (entry); 11921} 11922 11923static int 11924ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11925{ 11926 11927 switch (lun_type) { 11928 case T_PROCESSOR: 11929 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11930 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11931 return (0); 11932 break; 11933 case T_DIRECT: 11934 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11935 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11936 return (0); 11937 break; 11938 default: 11939 return (0); 11940 } 11941 return (1); 11942} 11943 11944static int 11945ctl_scsiio(struct ctl_scsiio *ctsio) 11946{ 11947 int retval; 11948 const struct ctl_cmd_entry *entry; 11949 11950 retval = CTL_RETVAL_COMPLETE; 11951 11952 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11953 11954 entry = ctl_get_cmd_entry(ctsio, NULL); 11955 11956 /* 11957 * If this I/O has been aborted, just send it straight to 11958 * ctl_done() without executing it. 11959 */ 11960 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11961 ctl_done((union ctl_io *)ctsio); 11962 goto bailout; 11963 } 11964 11965 /* 11966 * All the checks should have been handled by ctl_scsiio_precheck(). 11967 * We should be clear now to just execute the I/O. 11968 */ 11969 retval = entry->execute(ctsio); 11970 11971bailout: 11972 return (retval); 11973} 11974 11975/* 11976 * Since we only implement one target right now, a bus reset simply resets 11977 * our single target. 11978 */ 11979static int 11980ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11981{ 11982 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11983} 11984 11985static int 11986ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11987 ctl_ua_type ua_type) 11988{ 11989 struct ctl_lun *lun; 11990 int retval; 11991 11992 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11993 union ctl_ha_msg msg_info; 11994 11995 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11996 msg_info.hdr.nexus = io->io_hdr.nexus; 11997 if (ua_type==CTL_UA_TARG_RESET) 11998 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11999 else 12000 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12001 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12002 msg_info.hdr.original_sc = NULL; 12003 msg_info.hdr.serializing_sc = NULL; 12004 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12005 (void *)&msg_info, sizeof(msg_info), 0)) { 12006 } 12007 } 12008 retval = 0; 12009 12010 mtx_lock(&ctl_softc->ctl_lock); 12011 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12012 retval += ctl_lun_reset(lun, io, ua_type); 12013 mtx_unlock(&ctl_softc->ctl_lock); 12014 12015 return (retval); 12016} 12017 12018/* 12019 * The LUN should always be set. The I/O is optional, and is used to 12020 * distinguish between I/Os sent by this initiator, and by other 12021 * initiators. We set unit attention for initiators other than this one. 12022 * SAM-3 is vague on this point. It does say that a unit attention should 12023 * be established for other initiators when a LUN is reset (see section 12024 * 5.7.3), but it doesn't specifically say that the unit attention should 12025 * be established for this particular initiator when a LUN is reset. Here 12026 * is the relevant text, from SAM-3 rev 8: 12027 * 12028 * 5.7.2 When a SCSI initiator port aborts its own tasks 12029 * 12030 * When a SCSI initiator port causes its own task(s) to be aborted, no 12031 * notification that the task(s) have been aborted shall be returned to 12032 * the SCSI initiator port other than the completion response for the 12033 * command or task management function action that caused the task(s) to 12034 * be aborted and notification(s) associated with related effects of the 12035 * action (e.g., a reset unit attention condition). 12036 * 12037 * XXX KDM for now, we're setting unit attention for all initiators. 12038 */ 12039static int 12040ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12041{ 12042 union ctl_io *xio; 12043#if 0 12044 uint32_t initindex; 12045#endif 12046 int i; 12047 12048 mtx_lock(&lun->lun_lock); 12049 /* 12050 * Run through the OOA queue and abort each I/O. 12051 */ 12052#if 0 12053 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12054#endif 12055 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12056 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12057 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12058 } 12059 12060 /* 12061 * This version sets unit attention for every 12062 */ 12063#if 0 12064 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12065 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12066 if (initindex == i) 12067 continue; 12068 lun->pending_ua[i] |= ua_type; 12069 } 12070#endif 12071 12072 /* 12073 * A reset (any kind, really) clears reservations established with 12074 * RESERVE/RELEASE. It does not clear reservations established 12075 * with PERSISTENT RESERVE OUT, but we don't support that at the 12076 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12077 * reservations made with the RESERVE/RELEASE commands, because 12078 * those commands are obsolete in SPC-3. 12079 */ 12080 lun->flags &= ~CTL_LUN_RESERVED; 12081 12082 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12083#ifdef CTL_WITH_CA 12084 ctl_clear_mask(lun->have_ca, i); 12085#endif 12086 lun->pending_ua[i] |= ua_type; 12087 } 12088 mtx_unlock(&lun->lun_lock); 12089 12090 return (0); 12091} 12092 12093static void 12094ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12095 int other_sc) 12096{ 12097 union ctl_io *xio; 12098 12099 mtx_assert(&lun->lun_lock, MA_OWNED); 12100 12101 /* 12102 * Run through the OOA queue and attempt to find the given I/O. 12103 * The target port, initiator ID, tag type and tag number have to 12104 * match the values that we got from the initiator. If we have an 12105 * untagged command to abort, simply abort the first untagged command 12106 * we come to. We only allow one untagged command at a time of course. 12107 */ 12108 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12109 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12110 12111 if ((targ_port == UINT32_MAX || 12112 targ_port == xio->io_hdr.nexus.targ_port) && 12113 (init_id == UINT32_MAX || 12114 init_id == xio->io_hdr.nexus.initid.id)) { 12115 if (targ_port != xio->io_hdr.nexus.targ_port || 12116 init_id != xio->io_hdr.nexus.initid.id) 12117 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12118 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12119 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12120 union ctl_ha_msg msg_info; 12121 12122 msg_info.hdr.nexus = xio->io_hdr.nexus; 12123 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12124 msg_info.task.tag_num = xio->scsiio.tag_num; 12125 msg_info.task.tag_type = xio->scsiio.tag_type; 12126 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12127 msg_info.hdr.original_sc = NULL; 12128 msg_info.hdr.serializing_sc = NULL; 12129 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12130 (void *)&msg_info, sizeof(msg_info), 0); 12131 } 12132 } 12133 } 12134} 12135 12136static int 12137ctl_abort_task_set(union ctl_io *io) 12138{ 12139 struct ctl_softc *softc = control_softc; 12140 struct ctl_lun *lun; 12141 uint32_t targ_lun; 12142 12143 /* 12144 * Look up the LUN. 12145 */ 12146 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12147 mtx_lock(&softc->ctl_lock); 12148 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12149 lun = softc->ctl_luns[targ_lun]; 12150 else { 12151 mtx_unlock(&softc->ctl_lock); 12152 return (1); 12153 } 12154 12155 mtx_lock(&lun->lun_lock); 12156 mtx_unlock(&softc->ctl_lock); 12157 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12158 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12159 io->io_hdr.nexus.initid.id, 12160 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12161 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12162 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12163 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12164 } 12165 mtx_unlock(&lun->lun_lock); 12166 return (0); 12167} 12168 12169static int 12170ctl_i_t_nexus_reset(union ctl_io *io) 12171{ 12172 struct ctl_softc *softc = control_softc; 12173 struct ctl_lun *lun; 12174 uint32_t initindex, residx; 12175 12176 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12177 residx = ctl_get_resindex(&io->io_hdr.nexus); 12178 mtx_lock(&softc->ctl_lock); 12179 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12180 mtx_lock(&lun->lun_lock); 12181 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12182 io->io_hdr.nexus.initid.id, 12183 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12184#ifdef CTL_WITH_CA 12185 ctl_clear_mask(lun->have_ca, initindex); 12186#endif 12187 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12188 lun->flags &= ~CTL_LUN_RESERVED; 12189 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12190 mtx_unlock(&lun->lun_lock); 12191 } 12192 mtx_unlock(&softc->ctl_lock); 12193 return (0); 12194} 12195 12196static int 12197ctl_abort_task(union ctl_io *io) 12198{ 12199 union ctl_io *xio; 12200 struct ctl_lun *lun; 12201 struct ctl_softc *ctl_softc; 12202#if 0 12203 struct sbuf sb; 12204 char printbuf[128]; 12205#endif 12206 int found; 12207 uint32_t targ_lun; 12208 12209 ctl_softc = control_softc; 12210 found = 0; 12211 12212 /* 12213 * Look up the LUN. 12214 */ 12215 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12216 mtx_lock(&ctl_softc->ctl_lock); 12217 if ((targ_lun < CTL_MAX_LUNS) 12218 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12219 lun = ctl_softc->ctl_luns[targ_lun]; 12220 else { 12221 mtx_unlock(&ctl_softc->ctl_lock); 12222 return (1); 12223 } 12224 12225#if 0 12226 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12227 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12228#endif 12229 12230 mtx_lock(&lun->lun_lock); 12231 mtx_unlock(&ctl_softc->ctl_lock); 12232 /* 12233 * Run through the OOA queue and attempt to find the given I/O. 12234 * The target port, initiator ID, tag type and tag number have to 12235 * match the values that we got from the initiator. If we have an 12236 * untagged command to abort, simply abort the first untagged command 12237 * we come to. We only allow one untagged command at a time of course. 12238 */ 12239#if 0 12240 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12241#endif 12242 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12243 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12244#if 0 12245 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12246 12247 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12248 lun->lun, xio->scsiio.tag_num, 12249 xio->scsiio.tag_type, 12250 (xio->io_hdr.blocked_links.tqe_prev 12251 == NULL) ? "" : " BLOCKED", 12252 (xio->io_hdr.flags & 12253 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12254 (xio->io_hdr.flags & 12255 CTL_FLAG_ABORT) ? " ABORT" : "", 12256 (xio->io_hdr.flags & 12257 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12258 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12259 sbuf_finish(&sb); 12260 printf("%s\n", sbuf_data(&sb)); 12261#endif 12262 12263 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12264 && (xio->io_hdr.nexus.initid.id == 12265 io->io_hdr.nexus.initid.id)) { 12266 /* 12267 * If the abort says that the task is untagged, the 12268 * task in the queue must be untagged. Otherwise, 12269 * we just check to see whether the tag numbers 12270 * match. This is because the QLogic firmware 12271 * doesn't pass back the tag type in an abort 12272 * request. 12273 */ 12274#if 0 12275 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12276 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12277 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12278#endif 12279 /* 12280 * XXX KDM we've got problems with FC, because it 12281 * doesn't send down a tag type with aborts. So we 12282 * can only really go by the tag number... 12283 * This may cause problems with parallel SCSI. 12284 * Need to figure that out!! 12285 */ 12286 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12287 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12288 found = 1; 12289 if ((io->io_hdr.flags & 12290 CTL_FLAG_FROM_OTHER_SC) == 0 && 12291 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12292 union ctl_ha_msg msg_info; 12293 12294 io->io_hdr.flags |= 12295 CTL_FLAG_SENT_2OTHER_SC; 12296 msg_info.hdr.nexus = io->io_hdr.nexus; 12297 msg_info.task.task_action = 12298 CTL_TASK_ABORT_TASK; 12299 msg_info.task.tag_num = 12300 io->taskio.tag_num; 12301 msg_info.task.tag_type = 12302 io->taskio.tag_type; 12303 msg_info.hdr.msg_type = 12304 CTL_MSG_MANAGE_TASKS; 12305 msg_info.hdr.original_sc = NULL; 12306 msg_info.hdr.serializing_sc = NULL; 12307#if 0 12308 printf("Sent Abort to other side\n"); 12309#endif 12310 if (CTL_HA_STATUS_SUCCESS != 12311 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12312 (void *)&msg_info, 12313 sizeof(msg_info), 0)) { 12314 } 12315 } 12316#if 0 12317 printf("ctl_abort_task: found I/O to abort\n"); 12318#endif 12319 break; 12320 } 12321 } 12322 } 12323 mtx_unlock(&lun->lun_lock); 12324 12325 if (found == 0) { 12326 /* 12327 * This isn't really an error. It's entirely possible for 12328 * the abort and command completion to cross on the wire. 12329 * This is more of an informative/diagnostic error. 12330 */ 12331#if 0 12332 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12333 "%d:%d:%d:%d tag %d type %d\n", 12334 io->io_hdr.nexus.initid.id, 12335 io->io_hdr.nexus.targ_port, 12336 io->io_hdr.nexus.targ_target.id, 12337 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12338 io->taskio.tag_type); 12339#endif 12340 } 12341 return (0); 12342} 12343 12344static void 12345ctl_run_task(union ctl_io *io) 12346{ 12347 struct ctl_softc *ctl_softc = control_softc; 12348 int retval = 1; 12349 const char *task_desc; 12350 12351 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12352 12353 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12354 ("ctl_run_task: Unextected io_type %d\n", 12355 io->io_hdr.io_type)); 12356 12357 task_desc = ctl_scsi_task_string(&io->taskio); 12358 if (task_desc != NULL) { 12359#ifdef NEEDTOPORT 12360 csevent_log(CSC_CTL | CSC_SHELF_SW | 12361 CTL_TASK_REPORT, 12362 csevent_LogType_Trace, 12363 csevent_Severity_Information, 12364 csevent_AlertLevel_Green, 12365 csevent_FRU_Firmware, 12366 csevent_FRU_Unknown, 12367 "CTL: received task: %s",task_desc); 12368#endif 12369 } else { 12370#ifdef NEEDTOPORT 12371 csevent_log(CSC_CTL | CSC_SHELF_SW | 12372 CTL_TASK_REPORT, 12373 csevent_LogType_Trace, 12374 csevent_Severity_Information, 12375 csevent_AlertLevel_Green, 12376 csevent_FRU_Firmware, 12377 csevent_FRU_Unknown, 12378 "CTL: received unknown task " 12379 "type: %d (%#x)", 12380 io->taskio.task_action, 12381 io->taskio.task_action); 12382#endif 12383 } 12384 switch (io->taskio.task_action) { 12385 case CTL_TASK_ABORT_TASK: 12386 retval = ctl_abort_task(io); 12387 break; 12388 case CTL_TASK_ABORT_TASK_SET: 12389 case CTL_TASK_CLEAR_TASK_SET: 12390 retval = ctl_abort_task_set(io); 12391 break; 12392 case CTL_TASK_CLEAR_ACA: 12393 break; 12394 case CTL_TASK_I_T_NEXUS_RESET: 12395 retval = ctl_i_t_nexus_reset(io); 12396 break; 12397 case CTL_TASK_LUN_RESET: { 12398 struct ctl_lun *lun; 12399 uint32_t targ_lun; 12400 12401 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12402 mtx_lock(&ctl_softc->ctl_lock); 12403 if ((targ_lun < CTL_MAX_LUNS) 12404 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12405 lun = ctl_softc->ctl_luns[targ_lun]; 12406 else { 12407 mtx_unlock(&ctl_softc->ctl_lock); 12408 retval = 1; 12409 break; 12410 } 12411 12412 if (!(io->io_hdr.flags & 12413 CTL_FLAG_FROM_OTHER_SC)) { 12414 union ctl_ha_msg msg_info; 12415 12416 io->io_hdr.flags |= 12417 CTL_FLAG_SENT_2OTHER_SC; 12418 msg_info.hdr.msg_type = 12419 CTL_MSG_MANAGE_TASKS; 12420 msg_info.hdr.nexus = io->io_hdr.nexus; 12421 msg_info.task.task_action = 12422 CTL_TASK_LUN_RESET; 12423 msg_info.hdr.original_sc = NULL; 12424 msg_info.hdr.serializing_sc = NULL; 12425 if (CTL_HA_STATUS_SUCCESS != 12426 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12427 (void *)&msg_info, 12428 sizeof(msg_info), 0)) { 12429 } 12430 } 12431 12432 retval = ctl_lun_reset(lun, io, 12433 CTL_UA_LUN_RESET); 12434 mtx_unlock(&ctl_softc->ctl_lock); 12435 break; 12436 } 12437 case CTL_TASK_TARGET_RESET: 12438 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12439 break; 12440 case CTL_TASK_BUS_RESET: 12441 retval = ctl_bus_reset(ctl_softc, io); 12442 break; 12443 case CTL_TASK_PORT_LOGIN: 12444 break; 12445 case CTL_TASK_PORT_LOGOUT: 12446 break; 12447 default: 12448 printf("ctl_run_task: got unknown task management event %d\n", 12449 io->taskio.task_action); 12450 break; 12451 } 12452 if (retval == 0) 12453 io->io_hdr.status = CTL_SUCCESS; 12454 else 12455 io->io_hdr.status = CTL_ERROR; 12456 ctl_done(io); 12457} 12458 12459/* 12460 * For HA operation. Handle commands that come in from the other 12461 * controller. 12462 */ 12463static void 12464ctl_handle_isc(union ctl_io *io) 12465{ 12466 int free_io; 12467 struct ctl_lun *lun; 12468 struct ctl_softc *ctl_softc; 12469 uint32_t targ_lun; 12470 12471 ctl_softc = control_softc; 12472 12473 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12474 lun = ctl_softc->ctl_luns[targ_lun]; 12475 12476 switch (io->io_hdr.msg_type) { 12477 case CTL_MSG_SERIALIZE: 12478 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12479 break; 12480 case CTL_MSG_R2R: { 12481 const struct ctl_cmd_entry *entry; 12482 12483 /* 12484 * This is only used in SER_ONLY mode. 12485 */ 12486 free_io = 0; 12487 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12488 mtx_lock(&lun->lun_lock); 12489 if (ctl_scsiio_lun_check(ctl_softc, lun, 12490 entry, (struct ctl_scsiio *)io) != 0) { 12491 mtx_unlock(&lun->lun_lock); 12492 ctl_done(io); 12493 break; 12494 } 12495 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12496 mtx_unlock(&lun->lun_lock); 12497 ctl_enqueue_rtr(io); 12498 break; 12499 } 12500 case CTL_MSG_FINISH_IO: 12501 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12502 free_io = 0; 12503 ctl_done(io); 12504 } else { 12505 free_io = 1; 12506 mtx_lock(&lun->lun_lock); 12507 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12508 ooa_links); 12509 ctl_check_blocked(lun); 12510 mtx_unlock(&lun->lun_lock); 12511 } 12512 break; 12513 case CTL_MSG_PERS_ACTION: 12514 ctl_hndl_per_res_out_on_other_sc( 12515 (union ctl_ha_msg *)&io->presio.pr_msg); 12516 free_io = 1; 12517 break; 12518 case CTL_MSG_BAD_JUJU: 12519 free_io = 0; 12520 ctl_done(io); 12521 break; 12522 case CTL_MSG_DATAMOVE: 12523 /* Only used in XFER mode */ 12524 free_io = 0; 12525 ctl_datamove_remote(io); 12526 break; 12527 case CTL_MSG_DATAMOVE_DONE: 12528 /* Only used in XFER mode */ 12529 free_io = 0; 12530 io->scsiio.be_move_done(io); 12531 break; 12532 default: 12533 free_io = 1; 12534 printf("%s: Invalid message type %d\n", 12535 __func__, io->io_hdr.msg_type); 12536 break; 12537 } 12538 if (free_io) 12539 ctl_free_io(io); 12540 12541} 12542 12543 12544/* 12545 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12546 * there is no match. 12547 */ 12548static ctl_lun_error_pattern 12549ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12550{ 12551 const struct ctl_cmd_entry *entry; 12552 ctl_lun_error_pattern filtered_pattern, pattern; 12553 12554 pattern = desc->error_pattern; 12555 12556 /* 12557 * XXX KDM we need more data passed into this function to match a 12558 * custom pattern, and we actually need to implement custom pattern 12559 * matching. 12560 */ 12561 if (pattern & CTL_LUN_PAT_CMD) 12562 return (CTL_LUN_PAT_CMD); 12563 12564 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12565 return (CTL_LUN_PAT_ANY); 12566 12567 entry = ctl_get_cmd_entry(ctsio, NULL); 12568 12569 filtered_pattern = entry->pattern & pattern; 12570 12571 /* 12572 * If the user requested specific flags in the pattern (e.g. 12573 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12574 * flags. 12575 * 12576 * If the user did not specify any flags, it doesn't matter whether 12577 * or not the command supports the flags. 12578 */ 12579 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12580 (pattern & ~CTL_LUN_PAT_MASK)) 12581 return (CTL_LUN_PAT_NONE); 12582 12583 /* 12584 * If the user asked for a range check, see if the requested LBA 12585 * range overlaps with this command's LBA range. 12586 */ 12587 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12588 uint64_t lba1; 12589 uint64_t len1; 12590 ctl_action action; 12591 int retval; 12592 12593 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12594 if (retval != 0) 12595 return (CTL_LUN_PAT_NONE); 12596 12597 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12598 desc->lba_range.len); 12599 /* 12600 * A "pass" means that the LBA ranges don't overlap, so 12601 * this doesn't match the user's range criteria. 12602 */ 12603 if (action == CTL_ACTION_PASS) 12604 return (CTL_LUN_PAT_NONE); 12605 } 12606 12607 return (filtered_pattern); 12608} 12609 12610static void 12611ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12612{ 12613 struct ctl_error_desc *desc, *desc2; 12614 12615 mtx_assert(&lun->lun_lock, MA_OWNED); 12616 12617 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12618 ctl_lun_error_pattern pattern; 12619 /* 12620 * Check to see whether this particular command matches 12621 * the pattern in the descriptor. 12622 */ 12623 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12624 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12625 continue; 12626 12627 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12628 case CTL_LUN_INJ_ABORTED: 12629 ctl_set_aborted(&io->scsiio); 12630 break; 12631 case CTL_LUN_INJ_MEDIUM_ERR: 12632 ctl_set_medium_error(&io->scsiio); 12633 break; 12634 case CTL_LUN_INJ_UA: 12635 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12636 * OCCURRED */ 12637 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12638 break; 12639 case CTL_LUN_INJ_CUSTOM: 12640 /* 12641 * We're assuming the user knows what he is doing. 12642 * Just copy the sense information without doing 12643 * checks. 12644 */ 12645 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12646 ctl_min(sizeof(desc->custom_sense), 12647 sizeof(io->scsiio.sense_data))); 12648 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12649 io->scsiio.sense_len = SSD_FULL_SIZE; 12650 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12651 break; 12652 case CTL_LUN_INJ_NONE: 12653 default: 12654 /* 12655 * If this is an error injection type we don't know 12656 * about, clear the continuous flag (if it is set) 12657 * so it will get deleted below. 12658 */ 12659 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12660 break; 12661 } 12662 /* 12663 * By default, each error injection action is a one-shot 12664 */ 12665 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12666 continue; 12667 12668 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12669 12670 free(desc, M_CTL); 12671 } 12672} 12673 12674#ifdef CTL_IO_DELAY 12675static void 12676ctl_datamove_timer_wakeup(void *arg) 12677{ 12678 union ctl_io *io; 12679 12680 io = (union ctl_io *)arg; 12681 12682 ctl_datamove(io); 12683} 12684#endif /* CTL_IO_DELAY */ 12685 12686void 12687ctl_datamove(union ctl_io *io) 12688{ 12689 void (*fe_datamove)(union ctl_io *io); 12690 12691 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12692 12693 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12694 12695#ifdef CTL_TIME_IO 12696 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12697 char str[256]; 12698 char path_str[64]; 12699 struct sbuf sb; 12700 12701 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12702 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12703 12704 sbuf_cat(&sb, path_str); 12705 switch (io->io_hdr.io_type) { 12706 case CTL_IO_SCSI: 12707 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12708 sbuf_printf(&sb, "\n"); 12709 sbuf_cat(&sb, path_str); 12710 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12711 io->scsiio.tag_num, io->scsiio.tag_type); 12712 break; 12713 case CTL_IO_TASK: 12714 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12715 "Tag Type: %d\n", io->taskio.task_action, 12716 io->taskio.tag_num, io->taskio.tag_type); 12717 break; 12718 default: 12719 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12720 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12721 break; 12722 } 12723 sbuf_cat(&sb, path_str); 12724 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12725 (intmax_t)time_uptime - io->io_hdr.start_time); 12726 sbuf_finish(&sb); 12727 printf("%s", sbuf_data(&sb)); 12728 } 12729#endif /* CTL_TIME_IO */ 12730 12731#ifdef CTL_IO_DELAY 12732 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12733 struct ctl_lun *lun; 12734 12735 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12736 12737 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12738 } else { 12739 struct ctl_lun *lun; 12740 12741 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12742 if ((lun != NULL) 12743 && (lun->delay_info.datamove_delay > 0)) { 12744 struct callout *callout; 12745 12746 callout = (struct callout *)&io->io_hdr.timer_bytes; 12747 callout_init(callout, /*mpsafe*/ 1); 12748 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12749 callout_reset(callout, 12750 lun->delay_info.datamove_delay * hz, 12751 ctl_datamove_timer_wakeup, io); 12752 if (lun->delay_info.datamove_type == 12753 CTL_DELAY_TYPE_ONESHOT) 12754 lun->delay_info.datamove_delay = 0; 12755 return; 12756 } 12757 } 12758#endif 12759 12760 /* 12761 * This command has been aborted. Set the port status, so we fail 12762 * the data move. 12763 */ 12764 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12765 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12766 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12767 io->io_hdr.nexus.targ_port, 12768 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12769 io->io_hdr.nexus.targ_lun); 12770 io->io_hdr.port_status = 31337; 12771 /* 12772 * Note that the backend, in this case, will get the 12773 * callback in its context. In other cases it may get 12774 * called in the frontend's interrupt thread context. 12775 */ 12776 io->scsiio.be_move_done(io); 12777 return; 12778 } 12779 12780 /* 12781 * If we're in XFER mode and this I/O is from the other shelf 12782 * controller, we need to send the DMA to the other side to 12783 * actually transfer the data to/from the host. In serialize only 12784 * mode the transfer happens below CTL and ctl_datamove() is only 12785 * called on the machine that originally received the I/O. 12786 */ 12787 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12788 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12789 union ctl_ha_msg msg; 12790 uint32_t sg_entries_sent; 12791 int do_sg_copy; 12792 int i; 12793 12794 memset(&msg, 0, sizeof(msg)); 12795 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12796 msg.hdr.original_sc = io->io_hdr.original_sc; 12797 msg.hdr.serializing_sc = io; 12798 msg.hdr.nexus = io->io_hdr.nexus; 12799 msg.dt.flags = io->io_hdr.flags; 12800 /* 12801 * We convert everything into a S/G list here. We can't 12802 * pass by reference, only by value between controllers. 12803 * So we can't pass a pointer to the S/G list, only as many 12804 * S/G entries as we can fit in here. If it's possible for 12805 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12806 * then we need to break this up into multiple transfers. 12807 */ 12808 if (io->scsiio.kern_sg_entries == 0) { 12809 msg.dt.kern_sg_entries = 1; 12810 /* 12811 * If this is in cached memory, flush the cache 12812 * before we send the DMA request to the other 12813 * controller. We want to do this in either the 12814 * read or the write case. The read case is 12815 * straightforward. In the write case, we want to 12816 * make sure nothing is in the local cache that 12817 * could overwrite the DMAed data. 12818 */ 12819 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12820 /* 12821 * XXX KDM use bus_dmamap_sync() here. 12822 */ 12823 } 12824 12825 /* 12826 * Convert to a physical address if this is a 12827 * virtual address. 12828 */ 12829 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12830 msg.dt.sg_list[0].addr = 12831 io->scsiio.kern_data_ptr; 12832 } else { 12833 /* 12834 * XXX KDM use busdma here! 12835 */ 12836#if 0 12837 msg.dt.sg_list[0].addr = (void *) 12838 vtophys(io->scsiio.kern_data_ptr); 12839#endif 12840 } 12841 12842 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12843 do_sg_copy = 0; 12844 } else { 12845 struct ctl_sg_entry *sgl; 12846 12847 do_sg_copy = 1; 12848 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12849 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12850 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12851 /* 12852 * XXX KDM use bus_dmamap_sync() here. 12853 */ 12854 } 12855 } 12856 12857 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12858 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12859 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12860 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12861 msg.dt.sg_sequence = 0; 12862 12863 /* 12864 * Loop until we've sent all of the S/G entries. On the 12865 * other end, we'll recompose these S/G entries into one 12866 * contiguous list before passing it to the 12867 */ 12868 for (sg_entries_sent = 0; sg_entries_sent < 12869 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12870 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12871 sizeof(msg.dt.sg_list[0])), 12872 msg.dt.kern_sg_entries - sg_entries_sent); 12873 12874 if (do_sg_copy != 0) { 12875 struct ctl_sg_entry *sgl; 12876 int j; 12877 12878 sgl = (struct ctl_sg_entry *) 12879 io->scsiio.kern_data_ptr; 12880 /* 12881 * If this is in cached memory, flush the cache 12882 * before we send the DMA request to the other 12883 * controller. We want to do this in either 12884 * the * read or the write case. The read 12885 * case is straightforward. In the write 12886 * case, we want to make sure nothing is 12887 * in the local cache that could overwrite 12888 * the DMAed data. 12889 */ 12890 12891 for (i = sg_entries_sent, j = 0; 12892 i < msg.dt.cur_sg_entries; i++, j++) { 12893 if ((io->io_hdr.flags & 12894 CTL_FLAG_NO_DATASYNC) == 0) { 12895 /* 12896 * XXX KDM use bus_dmamap_sync() 12897 */ 12898 } 12899 if ((io->io_hdr.flags & 12900 CTL_FLAG_BUS_ADDR) == 0) { 12901 /* 12902 * XXX KDM use busdma. 12903 */ 12904#if 0 12905 msg.dt.sg_list[j].addr =(void *) 12906 vtophys(sgl[i].addr); 12907#endif 12908 } else { 12909 msg.dt.sg_list[j].addr = 12910 sgl[i].addr; 12911 } 12912 msg.dt.sg_list[j].len = sgl[i].len; 12913 } 12914 } 12915 12916 sg_entries_sent += msg.dt.cur_sg_entries; 12917 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12918 msg.dt.sg_last = 1; 12919 else 12920 msg.dt.sg_last = 0; 12921 12922 /* 12923 * XXX KDM drop and reacquire the lock here? 12924 */ 12925 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12926 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12927 /* 12928 * XXX do something here. 12929 */ 12930 } 12931 12932 msg.dt.sent_sg_entries = sg_entries_sent; 12933 } 12934 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12935 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12936 ctl_failover_io(io, /*have_lock*/ 0); 12937 12938 } else { 12939 12940 /* 12941 * Lookup the fe_datamove() function for this particular 12942 * front end. 12943 */ 12944 fe_datamove = 12945 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12946 12947 fe_datamove(io); 12948 } 12949} 12950 12951static void 12952ctl_send_datamove_done(union ctl_io *io, int have_lock) 12953{ 12954 union ctl_ha_msg msg; 12955 int isc_status; 12956 12957 memset(&msg, 0, sizeof(msg)); 12958 12959 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12960 msg.hdr.original_sc = io; 12961 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12962 msg.hdr.nexus = io->io_hdr.nexus; 12963 msg.hdr.status = io->io_hdr.status; 12964 msg.scsi.tag_num = io->scsiio.tag_num; 12965 msg.scsi.tag_type = io->scsiio.tag_type; 12966 msg.scsi.scsi_status = io->scsiio.scsi_status; 12967 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12968 sizeof(io->scsiio.sense_data)); 12969 msg.scsi.sense_len = io->scsiio.sense_len; 12970 msg.scsi.sense_residual = io->scsiio.sense_residual; 12971 msg.scsi.fetd_status = io->io_hdr.port_status; 12972 msg.scsi.residual = io->scsiio.residual; 12973 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12974 12975 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12976 ctl_failover_io(io, /*have_lock*/ have_lock); 12977 return; 12978 } 12979 12980 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12981 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12982 /* XXX do something if this fails */ 12983 } 12984 12985} 12986 12987/* 12988 * The DMA to the remote side is done, now we need to tell the other side 12989 * we're done so it can continue with its data movement. 12990 */ 12991static void 12992ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12993{ 12994 union ctl_io *io; 12995 12996 io = rq->context; 12997 12998 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12999 printf("%s: ISC DMA write failed with error %d", __func__, 13000 rq->ret); 13001 ctl_set_internal_failure(&io->scsiio, 13002 /*sks_valid*/ 1, 13003 /*retry_count*/ rq->ret); 13004 } 13005 13006 ctl_dt_req_free(rq); 13007 13008 /* 13009 * In this case, we had to malloc the memory locally. Free it. 13010 */ 13011 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13012 int i; 13013 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13014 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13015 } 13016 /* 13017 * The data is in local and remote memory, so now we need to send 13018 * status (good or back) back to the other side. 13019 */ 13020 ctl_send_datamove_done(io, /*have_lock*/ 0); 13021} 13022 13023/* 13024 * We've moved the data from the host/controller into local memory. Now we 13025 * need to push it over to the remote controller's memory. 13026 */ 13027static int 13028ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13029{ 13030 int retval; 13031 13032 retval = 0; 13033 13034 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13035 ctl_datamove_remote_write_cb); 13036 13037 return (retval); 13038} 13039 13040static void 13041ctl_datamove_remote_write(union ctl_io *io) 13042{ 13043 int retval; 13044 void (*fe_datamove)(union ctl_io *io); 13045 13046 /* 13047 * - Get the data from the host/HBA into local memory. 13048 * - DMA memory from the local controller to the remote controller. 13049 * - Send status back to the remote controller. 13050 */ 13051 13052 retval = ctl_datamove_remote_sgl_setup(io); 13053 if (retval != 0) 13054 return; 13055 13056 /* Switch the pointer over so the FETD knows what to do */ 13057 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13058 13059 /* 13060 * Use a custom move done callback, since we need to send completion 13061 * back to the other controller, not to the backend on this side. 13062 */ 13063 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13064 13065 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13066 13067 fe_datamove(io); 13068 13069 return; 13070 13071} 13072 13073static int 13074ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13075{ 13076#if 0 13077 char str[256]; 13078 char path_str[64]; 13079 struct sbuf sb; 13080#endif 13081 13082 /* 13083 * In this case, we had to malloc the memory locally. Free it. 13084 */ 13085 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13086 int i; 13087 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13088 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13089 } 13090 13091#if 0 13092 scsi_path_string(io, path_str, sizeof(path_str)); 13093 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13094 sbuf_cat(&sb, path_str); 13095 scsi_command_string(&io->scsiio, NULL, &sb); 13096 sbuf_printf(&sb, "\n"); 13097 sbuf_cat(&sb, path_str); 13098 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13099 io->scsiio.tag_num, io->scsiio.tag_type); 13100 sbuf_cat(&sb, path_str); 13101 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13102 io->io_hdr.flags, io->io_hdr.status); 13103 sbuf_finish(&sb); 13104 printk("%s", sbuf_data(&sb)); 13105#endif 13106 13107 13108 /* 13109 * The read is done, now we need to send status (good or bad) back 13110 * to the other side. 13111 */ 13112 ctl_send_datamove_done(io, /*have_lock*/ 0); 13113 13114 return (0); 13115} 13116 13117static void 13118ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13119{ 13120 union ctl_io *io; 13121 void (*fe_datamove)(union ctl_io *io); 13122 13123 io = rq->context; 13124 13125 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13126 printf("%s: ISC DMA read failed with error %d", __func__, 13127 rq->ret); 13128 ctl_set_internal_failure(&io->scsiio, 13129 /*sks_valid*/ 1, 13130 /*retry_count*/ rq->ret); 13131 } 13132 13133 ctl_dt_req_free(rq); 13134 13135 /* Switch the pointer over so the FETD knows what to do */ 13136 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13137 13138 /* 13139 * Use a custom move done callback, since we need to send completion 13140 * back to the other controller, not to the backend on this side. 13141 */ 13142 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13143 13144 /* XXX KDM add checks like the ones in ctl_datamove? */ 13145 13146 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13147 13148 fe_datamove(io); 13149} 13150 13151static int 13152ctl_datamove_remote_sgl_setup(union ctl_io *io) 13153{ 13154 struct ctl_sg_entry *local_sglist, *remote_sglist; 13155 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13156 struct ctl_softc *softc; 13157 int retval; 13158 int i; 13159 13160 retval = 0; 13161 softc = control_softc; 13162 13163 local_sglist = io->io_hdr.local_sglist; 13164 local_dma_sglist = io->io_hdr.local_dma_sglist; 13165 remote_sglist = io->io_hdr.remote_sglist; 13166 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13167 13168 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13169 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13170 local_sglist[i].len = remote_sglist[i].len; 13171 13172 /* 13173 * XXX Detect the situation where the RS-level I/O 13174 * redirector on the other side has already read the 13175 * data off of the AOR RS on this side, and 13176 * transferred it to remote (mirror) memory on the 13177 * other side. Since we already have the data in 13178 * memory here, we just need to use it. 13179 * 13180 * XXX KDM this can probably be removed once we 13181 * get the cache device code in and take the 13182 * current AOR implementation out. 13183 */ 13184#ifdef NEEDTOPORT 13185 if ((remote_sglist[i].addr >= 13186 (void *)vtophys(softc->mirr->addr)) 13187 && (remote_sglist[i].addr < 13188 ((void *)vtophys(softc->mirr->addr) + 13189 CacheMirrorOffset))) { 13190 local_sglist[i].addr = remote_sglist[i].addr - 13191 CacheMirrorOffset; 13192 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13193 CTL_FLAG_DATA_IN) 13194 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13195 } else { 13196 local_sglist[i].addr = remote_sglist[i].addr + 13197 CacheMirrorOffset; 13198 } 13199#endif 13200#if 0 13201 printf("%s: local %p, remote %p, len %d\n", 13202 __func__, local_sglist[i].addr, 13203 remote_sglist[i].addr, local_sglist[i].len); 13204#endif 13205 } 13206 } else { 13207 uint32_t len_to_go; 13208 13209 /* 13210 * In this case, we don't have automatically allocated 13211 * memory for this I/O on this controller. This typically 13212 * happens with internal CTL I/O -- e.g. inquiry, mode 13213 * sense, etc. Anything coming from RAIDCore will have 13214 * a mirror area available. 13215 */ 13216 len_to_go = io->scsiio.kern_data_len; 13217 13218 /* 13219 * Clear the no datasync flag, we have to use malloced 13220 * buffers. 13221 */ 13222 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13223 13224 /* 13225 * The difficult thing here is that the size of the various 13226 * S/G segments may be different than the size from the 13227 * remote controller. That'll make it harder when DMAing 13228 * the data back to the other side. 13229 */ 13230 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13231 sizeof(io->io_hdr.remote_sglist[0])) && 13232 (len_to_go > 0); i++) { 13233 local_sglist[i].len = ctl_min(len_to_go, 131072); 13234 CTL_SIZE_8B(local_dma_sglist[i].len, 13235 local_sglist[i].len); 13236 local_sglist[i].addr = 13237 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13238 13239 local_dma_sglist[i].addr = local_sglist[i].addr; 13240 13241 if (local_sglist[i].addr == NULL) { 13242 int j; 13243 13244 printf("malloc failed for %zd bytes!", 13245 local_dma_sglist[i].len); 13246 for (j = 0; j < i; j++) { 13247 free(local_sglist[j].addr, M_CTL); 13248 } 13249 ctl_set_internal_failure(&io->scsiio, 13250 /*sks_valid*/ 1, 13251 /*retry_count*/ 4857); 13252 retval = 1; 13253 goto bailout_error; 13254 13255 } 13256 /* XXX KDM do we need a sync here? */ 13257 13258 len_to_go -= local_sglist[i].len; 13259 } 13260 /* 13261 * Reset the number of S/G entries accordingly. The 13262 * original number of S/G entries is available in 13263 * rem_sg_entries. 13264 */ 13265 io->scsiio.kern_sg_entries = i; 13266 13267#if 0 13268 printf("%s: kern_sg_entries = %d\n", __func__, 13269 io->scsiio.kern_sg_entries); 13270 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13271 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13272 local_sglist[i].addr, local_sglist[i].len, 13273 local_dma_sglist[i].len); 13274#endif 13275 } 13276 13277 13278 return (retval); 13279 13280bailout_error: 13281 13282 ctl_send_datamove_done(io, /*have_lock*/ 0); 13283 13284 return (retval); 13285} 13286 13287static int 13288ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13289 ctl_ha_dt_cb callback) 13290{ 13291 struct ctl_ha_dt_req *rq; 13292 struct ctl_sg_entry *remote_sglist, *local_sglist; 13293 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13294 uint32_t local_used, remote_used, total_used; 13295 int retval; 13296 int i, j; 13297 13298 retval = 0; 13299 13300 rq = ctl_dt_req_alloc(); 13301 13302 /* 13303 * If we failed to allocate the request, and if the DMA didn't fail 13304 * anyway, set busy status. This is just a resource allocation 13305 * failure. 13306 */ 13307 if ((rq == NULL) 13308 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13309 ctl_set_busy(&io->scsiio); 13310 13311 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13312 13313 if (rq != NULL) 13314 ctl_dt_req_free(rq); 13315 13316 /* 13317 * The data move failed. We need to return status back 13318 * to the other controller. No point in trying to DMA 13319 * data to the remote controller. 13320 */ 13321 13322 ctl_send_datamove_done(io, /*have_lock*/ 0); 13323 13324 retval = 1; 13325 13326 goto bailout; 13327 } 13328 13329 local_sglist = io->io_hdr.local_sglist; 13330 local_dma_sglist = io->io_hdr.local_dma_sglist; 13331 remote_sglist = io->io_hdr.remote_sglist; 13332 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13333 local_used = 0; 13334 remote_used = 0; 13335 total_used = 0; 13336 13337 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13338 rq->ret = CTL_HA_STATUS_SUCCESS; 13339 rq->context = io; 13340 callback(rq); 13341 goto bailout; 13342 } 13343 13344 /* 13345 * Pull/push the data over the wire from/to the other controller. 13346 * This takes into account the possibility that the local and 13347 * remote sglists may not be identical in terms of the size of 13348 * the elements and the number of elements. 13349 * 13350 * One fundamental assumption here is that the length allocated for 13351 * both the local and remote sglists is identical. Otherwise, we've 13352 * essentially got a coding error of some sort. 13353 */ 13354 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13355 int isc_ret; 13356 uint32_t cur_len, dma_length; 13357 uint8_t *tmp_ptr; 13358 13359 rq->id = CTL_HA_DATA_CTL; 13360 rq->command = command; 13361 rq->context = io; 13362 13363 /* 13364 * Both pointers should be aligned. But it is possible 13365 * that the allocation length is not. They should both 13366 * also have enough slack left over at the end, though, 13367 * to round up to the next 8 byte boundary. 13368 */ 13369 cur_len = ctl_min(local_sglist[i].len - local_used, 13370 remote_sglist[j].len - remote_used); 13371 13372 /* 13373 * In this case, we have a size issue and need to decrease 13374 * the size, except in the case where we actually have less 13375 * than 8 bytes left. In that case, we need to increase 13376 * the DMA length to get the last bit. 13377 */ 13378 if ((cur_len & 0x7) != 0) { 13379 if (cur_len > 0x7) { 13380 cur_len = cur_len - (cur_len & 0x7); 13381 dma_length = cur_len; 13382 } else { 13383 CTL_SIZE_8B(dma_length, cur_len); 13384 } 13385 13386 } else 13387 dma_length = cur_len; 13388 13389 /* 13390 * If we had to allocate memory for this I/O, instead of using 13391 * the non-cached mirror memory, we'll need to flush the cache 13392 * before trying to DMA to the other controller. 13393 * 13394 * We could end up doing this multiple times for the same 13395 * segment if we have a larger local segment than remote 13396 * segment. That shouldn't be an issue. 13397 */ 13398 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13399 /* 13400 * XXX KDM use bus_dmamap_sync() here. 13401 */ 13402 } 13403 13404 rq->size = dma_length; 13405 13406 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13407 tmp_ptr += local_used; 13408 13409 /* Use physical addresses when talking to ISC hardware */ 13410 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13411 /* XXX KDM use busdma */ 13412#if 0 13413 rq->local = vtophys(tmp_ptr); 13414#endif 13415 } else 13416 rq->local = tmp_ptr; 13417 13418 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13419 tmp_ptr += remote_used; 13420 rq->remote = tmp_ptr; 13421 13422 rq->callback = NULL; 13423 13424 local_used += cur_len; 13425 if (local_used >= local_sglist[i].len) { 13426 i++; 13427 local_used = 0; 13428 } 13429 13430 remote_used += cur_len; 13431 if (remote_used >= remote_sglist[j].len) { 13432 j++; 13433 remote_used = 0; 13434 } 13435 total_used += cur_len; 13436 13437 if (total_used >= io->scsiio.kern_data_len) 13438 rq->callback = callback; 13439 13440 if ((rq->size & 0x7) != 0) { 13441 printf("%s: warning: size %d is not on 8b boundary\n", 13442 __func__, rq->size); 13443 } 13444 if (((uintptr_t)rq->local & 0x7) != 0) { 13445 printf("%s: warning: local %p not on 8b boundary\n", 13446 __func__, rq->local); 13447 } 13448 if (((uintptr_t)rq->remote & 0x7) != 0) { 13449 printf("%s: warning: remote %p not on 8b boundary\n", 13450 __func__, rq->local); 13451 } 13452#if 0 13453 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13454 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13455 rq->local, rq->remote, rq->size); 13456#endif 13457 13458 isc_ret = ctl_dt_single(rq); 13459 if (isc_ret == CTL_HA_STATUS_WAIT) 13460 continue; 13461 13462 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13463 rq->ret = CTL_HA_STATUS_SUCCESS; 13464 } else { 13465 rq->ret = isc_ret; 13466 } 13467 callback(rq); 13468 goto bailout; 13469 } 13470 13471bailout: 13472 return (retval); 13473 13474} 13475 13476static void 13477ctl_datamove_remote_read(union ctl_io *io) 13478{ 13479 int retval; 13480 int i; 13481 13482 /* 13483 * This will send an error to the other controller in the case of a 13484 * failure. 13485 */ 13486 retval = ctl_datamove_remote_sgl_setup(io); 13487 if (retval != 0) 13488 return; 13489 13490 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13491 ctl_datamove_remote_read_cb); 13492 if ((retval != 0) 13493 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13494 /* 13495 * Make sure we free memory if there was an error.. The 13496 * ctl_datamove_remote_xfer() function will send the 13497 * datamove done message, or call the callback with an 13498 * error if there is a problem. 13499 */ 13500 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13501 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13502 } 13503 13504 return; 13505} 13506 13507/* 13508 * Process a datamove request from the other controller. This is used for 13509 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13510 * first. Once that is complete, the data gets DMAed into the remote 13511 * controller's memory. For reads, we DMA from the remote controller's 13512 * memory into our memory first, and then move it out to the FETD. 13513 */ 13514static void 13515ctl_datamove_remote(union ctl_io *io) 13516{ 13517 struct ctl_softc *softc; 13518 13519 softc = control_softc; 13520 13521 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13522 13523 /* 13524 * Note that we look for an aborted I/O here, but don't do some of 13525 * the other checks that ctl_datamove() normally does. 13526 * We don't need to run the datamove delay code, since that should 13527 * have been done if need be on the other controller. 13528 */ 13529 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13530 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13531 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13532 io->io_hdr.nexus.targ_port, 13533 io->io_hdr.nexus.targ_target.id, 13534 io->io_hdr.nexus.targ_lun); 13535 io->io_hdr.port_status = 31338; 13536 ctl_send_datamove_done(io, /*have_lock*/ 0); 13537 return; 13538 } 13539 13540 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13541 ctl_datamove_remote_write(io); 13542 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13543 ctl_datamove_remote_read(io); 13544 } else { 13545 union ctl_ha_msg msg; 13546 struct scsi_sense_data *sense; 13547 uint8_t sks[3]; 13548 int retry_count; 13549 13550 memset(&msg, 0, sizeof(msg)); 13551 13552 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13553 msg.hdr.status = CTL_SCSI_ERROR; 13554 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13555 13556 retry_count = 4243; 13557 13558 sense = &msg.scsi.sense_data; 13559 sks[0] = SSD_SCS_VALID; 13560 sks[1] = (retry_count >> 8) & 0xff; 13561 sks[2] = retry_count & 0xff; 13562 13563 /* "Internal target failure" */ 13564 scsi_set_sense_data(sense, 13565 /*sense_format*/ SSD_TYPE_NONE, 13566 /*current_error*/ 1, 13567 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13568 /*asc*/ 0x44, 13569 /*ascq*/ 0x00, 13570 /*type*/ SSD_ELEM_SKS, 13571 /*size*/ sizeof(sks), 13572 /*data*/ sks, 13573 SSD_ELEM_NONE); 13574 13575 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13576 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13577 ctl_failover_io(io, /*have_lock*/ 1); 13578 return; 13579 } 13580 13581 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13582 CTL_HA_STATUS_SUCCESS) { 13583 /* XXX KDM what to do if this fails? */ 13584 } 13585 return; 13586 } 13587 13588} 13589 13590static int 13591ctl_process_done(union ctl_io *io) 13592{ 13593 struct ctl_lun *lun; 13594 struct ctl_softc *ctl_softc; 13595 void (*fe_done)(union ctl_io *io); 13596 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13597 13598 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13599 13600 fe_done = 13601 control_softc->ctl_ports[targ_port]->fe_done; 13602 13603#ifdef CTL_TIME_IO 13604 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13605 char str[256]; 13606 char path_str[64]; 13607 struct sbuf sb; 13608 13609 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13610 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13611 13612 sbuf_cat(&sb, path_str); 13613 switch (io->io_hdr.io_type) { 13614 case CTL_IO_SCSI: 13615 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13616 sbuf_printf(&sb, "\n"); 13617 sbuf_cat(&sb, path_str); 13618 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13619 io->scsiio.tag_num, io->scsiio.tag_type); 13620 break; 13621 case CTL_IO_TASK: 13622 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13623 "Tag Type: %d\n", io->taskio.task_action, 13624 io->taskio.tag_num, io->taskio.tag_type); 13625 break; 13626 default: 13627 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13628 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13629 break; 13630 } 13631 sbuf_cat(&sb, path_str); 13632 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13633 (intmax_t)time_uptime - io->io_hdr.start_time); 13634 sbuf_finish(&sb); 13635 printf("%s", sbuf_data(&sb)); 13636 } 13637#endif /* CTL_TIME_IO */ 13638 13639 switch (io->io_hdr.io_type) { 13640 case CTL_IO_SCSI: 13641 break; 13642 case CTL_IO_TASK: 13643 if (bootverbose || verbose > 0) 13644 ctl_io_error_print(io, NULL); 13645 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13646 ctl_free_io(io); 13647 else 13648 fe_done(io); 13649 return (CTL_RETVAL_COMPLETE); 13650 break; 13651 default: 13652 printf("ctl_process_done: invalid io type %d\n", 13653 io->io_hdr.io_type); 13654 panic("ctl_process_done: invalid io type %d\n", 13655 io->io_hdr.io_type); 13656 break; /* NOTREACHED */ 13657 } 13658 13659 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13660 if (lun == NULL) { 13661 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13662 io->io_hdr.nexus.targ_mapped_lun)); 13663 fe_done(io); 13664 goto bailout; 13665 } 13666 ctl_softc = lun->ctl_softc; 13667 13668 mtx_lock(&lun->lun_lock); 13669 13670 /* 13671 * Check to see if we have any errors to inject here. We only 13672 * inject errors for commands that don't already have errors set. 13673 */ 13674 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13675 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13676 ctl_inject_error(lun, io); 13677 13678 /* 13679 * XXX KDM how do we treat commands that aren't completed 13680 * successfully? 13681 * 13682 * XXX KDM should we also track I/O latency? 13683 */ 13684 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13685 io->io_hdr.io_type == CTL_IO_SCSI) { 13686#ifdef CTL_TIME_IO 13687 struct bintime cur_bt; 13688#endif 13689 int type; 13690 13691 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13692 CTL_FLAG_DATA_IN) 13693 type = CTL_STATS_READ; 13694 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13695 CTL_FLAG_DATA_OUT) 13696 type = CTL_STATS_WRITE; 13697 else 13698 type = CTL_STATS_NO_IO; 13699 13700 lun->stats.ports[targ_port].bytes[type] += 13701 io->scsiio.kern_total_len; 13702 lun->stats.ports[targ_port].operations[type]++; 13703#ifdef CTL_TIME_IO 13704 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13705 &io->io_hdr.dma_bt); 13706 lun->stats.ports[targ_port].num_dmas[type] += 13707 io->io_hdr.num_dmas; 13708 getbintime(&cur_bt); 13709 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13710 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13711#endif 13712 } 13713 13714 /* 13715 * Remove this from the OOA queue. 13716 */ 13717 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13718 13719 /* 13720 * Run through the blocked queue on this LUN and see if anything 13721 * has become unblocked, now that this transaction is done. 13722 */ 13723 ctl_check_blocked(lun); 13724 13725 /* 13726 * If the LUN has been invalidated, free it if there is nothing 13727 * left on its OOA queue. 13728 */ 13729 if ((lun->flags & CTL_LUN_INVALID) 13730 && TAILQ_EMPTY(&lun->ooa_queue)) { 13731 mtx_unlock(&lun->lun_lock); 13732 mtx_lock(&ctl_softc->ctl_lock); 13733 ctl_free_lun(lun); 13734 mtx_unlock(&ctl_softc->ctl_lock); 13735 } else 13736 mtx_unlock(&lun->lun_lock); 13737 13738 /* 13739 * If this command has been aborted, make sure we set the status 13740 * properly. The FETD is responsible for freeing the I/O and doing 13741 * whatever it needs to do to clean up its state. 13742 */ 13743 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13744 ctl_set_task_aborted(&io->scsiio); 13745 13746 /* 13747 * We print out status for every task management command. For SCSI 13748 * commands, we filter out any unit attention errors; they happen 13749 * on every boot, and would clutter up the log. Note: task 13750 * management commands aren't printed here, they are printed above, 13751 * since they should never even make it down here. 13752 */ 13753 switch (io->io_hdr.io_type) { 13754 case CTL_IO_SCSI: { 13755 int error_code, sense_key, asc, ascq; 13756 13757 sense_key = 0; 13758 13759 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13760 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13761 /* 13762 * Since this is just for printing, no need to 13763 * show errors here. 13764 */ 13765 scsi_extract_sense_len(&io->scsiio.sense_data, 13766 io->scsiio.sense_len, 13767 &error_code, 13768 &sense_key, 13769 &asc, 13770 &ascq, 13771 /*show_errors*/ 0); 13772 } 13773 13774 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13775 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13776 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13777 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13778 13779 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13780 ctl_softc->skipped_prints++; 13781 } else { 13782 uint32_t skipped_prints; 13783 13784 skipped_prints = ctl_softc->skipped_prints; 13785 13786 ctl_softc->skipped_prints = 0; 13787 ctl_softc->last_print_jiffies = time_uptime; 13788 13789 if (skipped_prints > 0) { 13790#ifdef NEEDTOPORT 13791 csevent_log(CSC_CTL | CSC_SHELF_SW | 13792 CTL_ERROR_REPORT, 13793 csevent_LogType_Trace, 13794 csevent_Severity_Information, 13795 csevent_AlertLevel_Green, 13796 csevent_FRU_Firmware, 13797 csevent_FRU_Unknown, 13798 "High CTL error volume, %d prints " 13799 "skipped", skipped_prints); 13800#endif 13801 } 13802 if (bootverbose || verbose > 0) 13803 ctl_io_error_print(io, NULL); 13804 } 13805 } 13806 break; 13807 } 13808 case CTL_IO_TASK: 13809 if (bootverbose || verbose > 0) 13810 ctl_io_error_print(io, NULL); 13811 break; 13812 default: 13813 break; 13814 } 13815 13816 /* 13817 * Tell the FETD or the other shelf controller we're done with this 13818 * command. Note that only SCSI commands get to this point. Task 13819 * management commands are completed above. 13820 * 13821 * We only send status to the other controller if we're in XFER 13822 * mode. In SER_ONLY mode, the I/O is done on the controller that 13823 * received the I/O (from CTL's perspective), and so the status is 13824 * generated there. 13825 * 13826 * XXX KDM if we hold the lock here, we could cause a deadlock 13827 * if the frontend comes back in in this context to queue 13828 * something. 13829 */ 13830 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13831 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13832 union ctl_ha_msg msg; 13833 13834 memset(&msg, 0, sizeof(msg)); 13835 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13836 msg.hdr.original_sc = io->io_hdr.original_sc; 13837 msg.hdr.nexus = io->io_hdr.nexus; 13838 msg.hdr.status = io->io_hdr.status; 13839 msg.scsi.scsi_status = io->scsiio.scsi_status; 13840 msg.scsi.tag_num = io->scsiio.tag_num; 13841 msg.scsi.tag_type = io->scsiio.tag_type; 13842 msg.scsi.sense_len = io->scsiio.sense_len; 13843 msg.scsi.sense_residual = io->scsiio.sense_residual; 13844 msg.scsi.residual = io->scsiio.residual; 13845 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13846 sizeof(io->scsiio.sense_data)); 13847 /* 13848 * We copy this whether or not this is an I/O-related 13849 * command. Otherwise, we'd have to go and check to see 13850 * whether it's a read/write command, and it really isn't 13851 * worth it. 13852 */ 13853 memcpy(&msg.scsi.lbalen, 13854 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13855 sizeof(msg.scsi.lbalen)); 13856 13857 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13858 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13859 /* XXX do something here */ 13860 } 13861 13862 ctl_free_io(io); 13863 } else 13864 fe_done(io); 13865 13866bailout: 13867 13868 return (CTL_RETVAL_COMPLETE); 13869} 13870 13871#ifdef CTL_WITH_CA 13872/* 13873 * Front end should call this if it doesn't do autosense. When the request 13874 * sense comes back in from the initiator, we'll dequeue this and send it. 13875 */ 13876int 13877ctl_queue_sense(union ctl_io *io) 13878{ 13879 struct ctl_lun *lun; 13880 struct ctl_softc *ctl_softc; 13881 uint32_t initidx, targ_lun; 13882 13883 ctl_softc = control_softc; 13884 13885 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13886 13887 /* 13888 * LUN lookup will likely move to the ctl_work_thread() once we 13889 * have our new queueing infrastructure (that doesn't put things on 13890 * a per-LUN queue initially). That is so that we can handle 13891 * things like an INQUIRY to a LUN that we don't have enabled. We 13892 * can't deal with that right now. 13893 */ 13894 mtx_lock(&ctl_softc->ctl_lock); 13895 13896 /* 13897 * If we don't have a LUN for this, just toss the sense 13898 * information. 13899 */ 13900 targ_lun = io->io_hdr.nexus.targ_lun; 13901 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13902 if ((targ_lun < CTL_MAX_LUNS) 13903 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13904 lun = ctl_softc->ctl_luns[targ_lun]; 13905 else 13906 goto bailout; 13907 13908 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13909 13910 mtx_lock(&lun->lun_lock); 13911 /* 13912 * Already have CA set for this LUN...toss the sense information. 13913 */ 13914 if (ctl_is_set(lun->have_ca, initidx)) { 13915 mtx_unlock(&lun->lun_lock); 13916 goto bailout; 13917 } 13918 13919 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13920 ctl_min(sizeof(lun->pending_sense[initidx]), 13921 sizeof(io->scsiio.sense_data))); 13922 ctl_set_mask(lun->have_ca, initidx); 13923 mtx_unlock(&lun->lun_lock); 13924 13925bailout: 13926 mtx_unlock(&ctl_softc->ctl_lock); 13927 13928 ctl_free_io(io); 13929 13930 return (CTL_RETVAL_COMPLETE); 13931} 13932#endif 13933 13934/* 13935 * Primary command inlet from frontend ports. All SCSI and task I/O 13936 * requests must go through this function. 13937 */ 13938int 13939ctl_queue(union ctl_io *io) 13940{ 13941 struct ctl_softc *ctl_softc; 13942 13943 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13944 13945 ctl_softc = control_softc; 13946 13947#ifdef CTL_TIME_IO 13948 io->io_hdr.start_time = time_uptime; 13949 getbintime(&io->io_hdr.start_bt); 13950#endif /* CTL_TIME_IO */ 13951 13952 /* Map FE-specific LUN ID into global one. */ 13953 io->io_hdr.nexus.targ_mapped_lun = 13954 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13955 13956 switch (io->io_hdr.io_type) { 13957 case CTL_IO_SCSI: 13958 case CTL_IO_TASK: 13959 ctl_enqueue_incoming(io); 13960 break; 13961 default: 13962 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13963 return (EINVAL); 13964 } 13965 13966 return (CTL_RETVAL_COMPLETE); 13967} 13968 13969#ifdef CTL_IO_DELAY 13970static void 13971ctl_done_timer_wakeup(void *arg) 13972{ 13973 union ctl_io *io; 13974 13975 io = (union ctl_io *)arg; 13976 ctl_done(io); 13977} 13978#endif /* CTL_IO_DELAY */ 13979 13980void 13981ctl_done(union ctl_io *io) 13982{ 13983 struct ctl_softc *ctl_softc; 13984 13985 ctl_softc = control_softc; 13986 13987 /* 13988 * Enable this to catch duplicate completion issues. 13989 */ 13990#if 0 13991 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13992 printf("%s: type %d msg %d cdb %x iptl: " 13993 "%d:%d:%d:%d tag 0x%04x " 13994 "flag %#x status %x\n", 13995 __func__, 13996 io->io_hdr.io_type, 13997 io->io_hdr.msg_type, 13998 io->scsiio.cdb[0], 13999 io->io_hdr.nexus.initid.id, 14000 io->io_hdr.nexus.targ_port, 14001 io->io_hdr.nexus.targ_target.id, 14002 io->io_hdr.nexus.targ_lun, 14003 (io->io_hdr.io_type == 14004 CTL_IO_TASK) ? 14005 io->taskio.tag_num : 14006 io->scsiio.tag_num, 14007 io->io_hdr.flags, 14008 io->io_hdr.status); 14009 } else 14010 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14011#endif 14012 14013 /* 14014 * This is an internal copy of an I/O, and should not go through 14015 * the normal done processing logic. 14016 */ 14017 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14018 return; 14019 14020 /* 14021 * We need to send a msg to the serializing shelf to finish the IO 14022 * as well. We don't send a finish message to the other shelf if 14023 * this is a task management command. Task management commands 14024 * aren't serialized in the OOA queue, but rather just executed on 14025 * both shelf controllers for commands that originated on that 14026 * controller. 14027 */ 14028 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14029 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14030 union ctl_ha_msg msg_io; 14031 14032 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14033 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14034 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14035 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14036 } 14037 /* continue on to finish IO */ 14038 } 14039#ifdef CTL_IO_DELAY 14040 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14041 struct ctl_lun *lun; 14042 14043 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14044 14045 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14046 } else { 14047 struct ctl_lun *lun; 14048 14049 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14050 14051 if ((lun != NULL) 14052 && (lun->delay_info.done_delay > 0)) { 14053 struct callout *callout; 14054 14055 callout = (struct callout *)&io->io_hdr.timer_bytes; 14056 callout_init(callout, /*mpsafe*/ 1); 14057 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14058 callout_reset(callout, 14059 lun->delay_info.done_delay * hz, 14060 ctl_done_timer_wakeup, io); 14061 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14062 lun->delay_info.done_delay = 0; 14063 return; 14064 } 14065 } 14066#endif /* CTL_IO_DELAY */ 14067 14068 ctl_enqueue_done(io); 14069} 14070 14071int 14072ctl_isc(struct ctl_scsiio *ctsio) 14073{ 14074 struct ctl_lun *lun; 14075 int retval; 14076 14077 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14078 14079 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14080 14081 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14082 14083 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14084 14085 return (retval); 14086} 14087 14088 14089static void 14090ctl_work_thread(void *arg) 14091{ 14092 struct ctl_thread *thr = (struct ctl_thread *)arg; 14093 struct ctl_softc *softc = thr->ctl_softc; 14094 union ctl_io *io; 14095 int retval; 14096 14097 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14098 14099 for (;;) { 14100 retval = 0; 14101 14102 /* 14103 * We handle the queues in this order: 14104 * - ISC 14105 * - done queue (to free up resources, unblock other commands) 14106 * - RtR queue 14107 * - incoming queue 14108 * 14109 * If those queues are empty, we break out of the loop and 14110 * go to sleep. 14111 */ 14112 mtx_lock(&thr->queue_lock); 14113 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14114 if (io != NULL) { 14115 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14116 mtx_unlock(&thr->queue_lock); 14117 ctl_handle_isc(io); 14118 continue; 14119 } 14120 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14121 if (io != NULL) { 14122 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14123 /* clear any blocked commands, call fe_done */ 14124 mtx_unlock(&thr->queue_lock); 14125 retval = ctl_process_done(io); 14126 continue; 14127 } 14128 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14129 if (io != NULL) { 14130 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14131 mtx_unlock(&thr->queue_lock); 14132 if (io->io_hdr.io_type == CTL_IO_TASK) 14133 ctl_run_task(io); 14134 else 14135 ctl_scsiio_precheck(softc, &io->scsiio); 14136 continue; 14137 } 14138 if (!ctl_pause_rtr) { 14139 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14140 if (io != NULL) { 14141 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14142 mtx_unlock(&thr->queue_lock); 14143 retval = ctl_scsiio(&io->scsiio); 14144 if (retval != CTL_RETVAL_COMPLETE) 14145 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14146 continue; 14147 } 14148 } 14149 14150 /* Sleep until we have something to do. */ 14151 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14152 } 14153} 14154 14155static void 14156ctl_lun_thread(void *arg) 14157{ 14158 struct ctl_softc *softc = (struct ctl_softc *)arg; 14159 struct ctl_be_lun *be_lun; 14160 int retval; 14161 14162 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14163 14164 for (;;) { 14165 retval = 0; 14166 mtx_lock(&softc->ctl_lock); 14167 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14168 if (be_lun != NULL) { 14169 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14170 mtx_unlock(&softc->ctl_lock); 14171 ctl_create_lun(be_lun); 14172 continue; 14173 } 14174 14175 /* Sleep until we have something to do. */ 14176 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14177 PDROP | PRIBIO, "-", 0); 14178 } 14179} 14180 14181static void 14182ctl_enqueue_incoming(union ctl_io *io) 14183{ 14184 struct ctl_softc *softc = control_softc; 14185 struct ctl_thread *thr; 14186 u_int idx; 14187 14188 idx = (io->io_hdr.nexus.targ_port * 127 + 14189 io->io_hdr.nexus.initid.id) % worker_threads; 14190 thr = &softc->threads[idx]; 14191 mtx_lock(&thr->queue_lock); 14192 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14193 mtx_unlock(&thr->queue_lock); 14194 wakeup(thr); 14195} 14196 14197static void 14198ctl_enqueue_rtr(union ctl_io *io) 14199{ 14200 struct ctl_softc *softc = control_softc; 14201 struct ctl_thread *thr; 14202 14203 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14204 mtx_lock(&thr->queue_lock); 14205 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14206 mtx_unlock(&thr->queue_lock); 14207 wakeup(thr); 14208} 14209 14210static void 14211ctl_enqueue_done(union ctl_io *io) 14212{ 14213 struct ctl_softc *softc = control_softc; 14214 struct ctl_thread *thr; 14215 14216 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14217 mtx_lock(&thr->queue_lock); 14218 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14219 mtx_unlock(&thr->queue_lock); 14220 wakeup(thr); 14221} 14222 14223static void 14224ctl_enqueue_isc(union ctl_io *io) 14225{ 14226 struct ctl_softc *softc = control_softc; 14227 struct ctl_thread *thr; 14228 14229 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14230 mtx_lock(&thr->queue_lock); 14231 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14232 mtx_unlock(&thr->queue_lock); 14233 wakeup(thr); 14234} 14235 14236/* Initialization and failover */ 14237 14238void 14239ctl_init_isc_msg(void) 14240{ 14241 printf("CTL: Still calling this thing\n"); 14242} 14243 14244/* 14245 * Init component 14246 * Initializes component into configuration defined by bootMode 14247 * (see hasc-sv.c) 14248 * returns hasc_Status: 14249 * OK 14250 * ERROR - fatal error 14251 */ 14252static ctl_ha_comp_status 14253ctl_isc_init(struct ctl_ha_component *c) 14254{ 14255 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14256 14257 c->status = ret; 14258 return ret; 14259} 14260 14261/* Start component 14262 * Starts component in state requested. If component starts successfully, 14263 * it must set its own state to the requestrd state 14264 * When requested state is HASC_STATE_HA, the component may refine it 14265 * by adding _SLAVE or _MASTER flags. 14266 * Currently allowed state transitions are: 14267 * UNKNOWN->HA - initial startup 14268 * UNKNOWN->SINGLE - initial startup when no parter detected 14269 * HA->SINGLE - failover 14270 * returns ctl_ha_comp_status: 14271 * OK - component successfully started in requested state 14272 * FAILED - could not start the requested state, failover may 14273 * be possible 14274 * ERROR - fatal error detected, no future startup possible 14275 */ 14276static ctl_ha_comp_status 14277ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14278{ 14279 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14280 14281 printf("%s: go\n", __func__); 14282 14283 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14284 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14285 ctl_is_single = 0; 14286 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14287 != CTL_HA_STATUS_SUCCESS) { 14288 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14289 ret = CTL_HA_COMP_STATUS_ERROR; 14290 } 14291 } else if (CTL_HA_STATE_IS_HA(c->state) 14292 && CTL_HA_STATE_IS_SINGLE(state)){ 14293 // HA->SINGLE transition 14294 ctl_failover(); 14295 ctl_is_single = 1; 14296 } else { 14297 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14298 c->state, state); 14299 ret = CTL_HA_COMP_STATUS_ERROR; 14300 } 14301 if (CTL_HA_STATE_IS_SINGLE(state)) 14302 ctl_is_single = 1; 14303 14304 c->state = state; 14305 c->status = ret; 14306 return ret; 14307} 14308 14309/* 14310 * Quiesce component 14311 * The component must clear any error conditions (set status to OK) and 14312 * prepare itself to another Start call 14313 * returns ctl_ha_comp_status: 14314 * OK 14315 * ERROR 14316 */ 14317static ctl_ha_comp_status 14318ctl_isc_quiesce(struct ctl_ha_component *c) 14319{ 14320 int ret = CTL_HA_COMP_STATUS_OK; 14321 14322 ctl_pause_rtr = 1; 14323 c->status = ret; 14324 return ret; 14325} 14326 14327struct ctl_ha_component ctl_ha_component_ctlisc = 14328{ 14329 .name = "CTL ISC", 14330 .state = CTL_HA_STATE_UNKNOWN, 14331 .init = ctl_isc_init, 14332 .start = ctl_isc_start, 14333 .quiesce = ctl_isc_quiesce 14334}; 14335 14336/* 14337 * vim: ts=8 14338 */ 14339