ctl.c revision 272911
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 272911 2014-10-10 19:41:09Z 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*/SCP_SWP, 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->pr_keys[idx] == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)lun->pr_keys[idx]); 2998 } 2999 } 3000 } 3001 printf("CTL Persistent Reservation information end\n"); 3002 printf("CTL Ports:\n"); 3003 STAILQ_FOREACH(port, &softc->port_list, links) { 3004 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3005 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3006 port->frontend->name, port->port_type, 3007 port->physical_port, port->virtual_port, 3008 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3009 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3010 if (port->wwpn_iid[j].in_use == 0 && 3011 port->wwpn_iid[j].wwpn == 0 && 3012 port->wwpn_iid[j].name == NULL) 3013 continue; 3014 3015 printf(" iid %u use %d WWPN %#jx '%s'\n", 3016 j, port->wwpn_iid[j].in_use, 3017 (uintmax_t)port->wwpn_iid[j].wwpn, 3018 port->wwpn_iid[j].name); 3019 } 3020 } 3021 printf("CTL Port information end\n"); 3022 mtx_unlock(&softc->ctl_lock); 3023 /* 3024 * XXX KDM calling this without a lock. We'd likely want 3025 * to drop the lock before calling the frontend's dump 3026 * routine anyway. 3027 */ 3028 printf("CTL Frontends:\n"); 3029 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3030 printf(" Frontend '%s'\n", fe->name); 3031 if (fe->fe_dump != NULL) 3032 fe->fe_dump(); 3033 } 3034 printf("CTL Frontend information end\n"); 3035 break; 3036 } 3037 case CTL_LUN_REQ: { 3038 struct ctl_lun_req *lun_req; 3039 struct ctl_backend_driver *backend; 3040 3041 lun_req = (struct ctl_lun_req *)addr; 3042 3043 backend = ctl_backend_find(lun_req->backend); 3044 if (backend == NULL) { 3045 lun_req->status = CTL_LUN_ERROR; 3046 snprintf(lun_req->error_str, 3047 sizeof(lun_req->error_str), 3048 "Backend \"%s\" not found.", 3049 lun_req->backend); 3050 break; 3051 } 3052 if (lun_req->num_be_args > 0) { 3053 lun_req->kern_be_args = ctl_copyin_args( 3054 lun_req->num_be_args, 3055 lun_req->be_args, 3056 lun_req->error_str, 3057 sizeof(lun_req->error_str)); 3058 if (lun_req->kern_be_args == NULL) { 3059 lun_req->status = CTL_LUN_ERROR; 3060 break; 3061 } 3062 } 3063 3064 retval = backend->ioctl(dev, cmd, addr, flag, td); 3065 3066 if (lun_req->num_be_args > 0) { 3067 ctl_copyout_args(lun_req->num_be_args, 3068 lun_req->kern_be_args); 3069 ctl_free_args(lun_req->num_be_args, 3070 lun_req->kern_be_args); 3071 } 3072 break; 3073 } 3074 case CTL_LUN_LIST: { 3075 struct sbuf *sb; 3076 struct ctl_lun *lun; 3077 struct ctl_lun_list *list; 3078 struct ctl_option *opt; 3079 3080 list = (struct ctl_lun_list *)addr; 3081 3082 /* 3083 * Allocate a fixed length sbuf here, based on the length 3084 * of the user's buffer. We could allocate an auto-extending 3085 * buffer, and then tell the user how much larger our 3086 * amount of data is than his buffer, but that presents 3087 * some problems: 3088 * 3089 * 1. The sbuf(9) routines use a blocking malloc, and so 3090 * we can't hold a lock while calling them with an 3091 * auto-extending buffer. 3092 * 3093 * 2. There is not currently a LUN reference counting 3094 * mechanism, outside of outstanding transactions on 3095 * the LUN's OOA queue. So a LUN could go away on us 3096 * while we're getting the LUN number, backend-specific 3097 * information, etc. Thus, given the way things 3098 * currently work, we need to hold the CTL lock while 3099 * grabbing LUN information. 3100 * 3101 * So, from the user's standpoint, the best thing to do is 3102 * allocate what he thinks is a reasonable buffer length, 3103 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3104 * double the buffer length and try again. (And repeat 3105 * that until he succeeds.) 3106 */ 3107 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3108 if (sb == NULL) { 3109 list->status = CTL_LUN_LIST_ERROR; 3110 snprintf(list->error_str, sizeof(list->error_str), 3111 "Unable to allocate %d bytes for LUN list", 3112 list->alloc_len); 3113 break; 3114 } 3115 3116 sbuf_printf(sb, "<ctllunlist>\n"); 3117 3118 mtx_lock(&softc->ctl_lock); 3119 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3120 mtx_lock(&lun->lun_lock); 3121 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3122 (uintmax_t)lun->lun); 3123 3124 /* 3125 * Bail out as soon as we see that we've overfilled 3126 * the buffer. 3127 */ 3128 if (retval != 0) 3129 break; 3130 3131 retval = sbuf_printf(sb, "\t<backend_type>%s" 3132 "</backend_type>\n", 3133 (lun->backend == NULL) ? "none" : 3134 lun->backend->name); 3135 3136 if (retval != 0) 3137 break; 3138 3139 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3140 lun->be_lun->lun_type); 3141 3142 if (retval != 0) 3143 break; 3144 3145 if (lun->backend == NULL) { 3146 retval = sbuf_printf(sb, "</lun>\n"); 3147 if (retval != 0) 3148 break; 3149 continue; 3150 } 3151 3152 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3153 (lun->be_lun->maxlba > 0) ? 3154 lun->be_lun->maxlba + 1 : 0); 3155 3156 if (retval != 0) 3157 break; 3158 3159 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3160 lun->be_lun->blocksize); 3161 3162 if (retval != 0) 3163 break; 3164 3165 retval = sbuf_printf(sb, "\t<serial_number>"); 3166 3167 if (retval != 0) 3168 break; 3169 3170 retval = ctl_sbuf_printf_esc(sb, 3171 lun->be_lun->serial_num); 3172 3173 if (retval != 0) 3174 break; 3175 3176 retval = sbuf_printf(sb, "</serial_number>\n"); 3177 3178 if (retval != 0) 3179 break; 3180 3181 retval = sbuf_printf(sb, "\t<device_id>"); 3182 3183 if (retval != 0) 3184 break; 3185 3186 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3187 3188 if (retval != 0) 3189 break; 3190 3191 retval = sbuf_printf(sb, "</device_id>\n"); 3192 3193 if (retval != 0) 3194 break; 3195 3196 if (lun->backend->lun_info != NULL) { 3197 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3198 if (retval != 0) 3199 break; 3200 } 3201 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3202 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3203 opt->name, opt->value, opt->name); 3204 if (retval != 0) 3205 break; 3206 } 3207 3208 retval = sbuf_printf(sb, "</lun>\n"); 3209 3210 if (retval != 0) 3211 break; 3212 mtx_unlock(&lun->lun_lock); 3213 } 3214 if (lun != NULL) 3215 mtx_unlock(&lun->lun_lock); 3216 mtx_unlock(&softc->ctl_lock); 3217 3218 if ((retval != 0) 3219 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3220 retval = 0; 3221 sbuf_delete(sb); 3222 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3223 snprintf(list->error_str, sizeof(list->error_str), 3224 "Out of space, %d bytes is too small", 3225 list->alloc_len); 3226 break; 3227 } 3228 3229 sbuf_finish(sb); 3230 3231 retval = copyout(sbuf_data(sb), list->lun_xml, 3232 sbuf_len(sb) + 1); 3233 3234 list->fill_len = sbuf_len(sb) + 1; 3235 list->status = CTL_LUN_LIST_OK; 3236 sbuf_delete(sb); 3237 break; 3238 } 3239 case CTL_ISCSI: { 3240 struct ctl_iscsi *ci; 3241 struct ctl_frontend *fe; 3242 3243 ci = (struct ctl_iscsi *)addr; 3244 3245 fe = ctl_frontend_find("iscsi"); 3246 if (fe == NULL) { 3247 ci->status = CTL_ISCSI_ERROR; 3248 snprintf(ci->error_str, sizeof(ci->error_str), 3249 "Frontend \"iscsi\" not found."); 3250 break; 3251 } 3252 3253 retval = fe->ioctl(dev, cmd, addr, flag, td); 3254 break; 3255 } 3256 case CTL_PORT_REQ: { 3257 struct ctl_req *req; 3258 struct ctl_frontend *fe; 3259 3260 req = (struct ctl_req *)addr; 3261 3262 fe = ctl_frontend_find(req->driver); 3263 if (fe == NULL) { 3264 req->status = CTL_LUN_ERROR; 3265 snprintf(req->error_str, sizeof(req->error_str), 3266 "Frontend \"%s\" not found.", req->driver); 3267 break; 3268 } 3269 if (req->num_args > 0) { 3270 req->kern_args = ctl_copyin_args(req->num_args, 3271 req->args, req->error_str, sizeof(req->error_str)); 3272 if (req->kern_args == NULL) { 3273 req->status = CTL_LUN_ERROR; 3274 break; 3275 } 3276 } 3277 3278 retval = fe->ioctl(dev, cmd, addr, flag, td); 3279 3280 if (req->num_args > 0) { 3281 ctl_copyout_args(req->num_args, req->kern_args); 3282 ctl_free_args(req->num_args, req->kern_args); 3283 } 3284 break; 3285 } 3286 case CTL_PORT_LIST: { 3287 struct sbuf *sb; 3288 struct ctl_port *port; 3289 struct ctl_lun_list *list; 3290 struct ctl_option *opt; 3291 3292 list = (struct ctl_lun_list *)addr; 3293 3294 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3295 if (sb == NULL) { 3296 list->status = CTL_LUN_LIST_ERROR; 3297 snprintf(list->error_str, sizeof(list->error_str), 3298 "Unable to allocate %d bytes for LUN list", 3299 list->alloc_len); 3300 break; 3301 } 3302 3303 sbuf_printf(sb, "<ctlportlist>\n"); 3304 3305 mtx_lock(&softc->ctl_lock); 3306 STAILQ_FOREACH(port, &softc->port_list, links) { 3307 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3308 (uintmax_t)port->targ_port); 3309 3310 /* 3311 * Bail out as soon as we see that we've overfilled 3312 * the buffer. 3313 */ 3314 if (retval != 0) 3315 break; 3316 3317 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3318 "</frontend_type>\n", port->frontend->name); 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3323 port->port_type); 3324 if (retval != 0) 3325 break; 3326 3327 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3328 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3329 if (retval != 0) 3330 break; 3331 3332 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3333 port->port_name); 3334 if (retval != 0) 3335 break; 3336 3337 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3338 port->physical_port); 3339 if (retval != 0) 3340 break; 3341 3342 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3343 port->virtual_port); 3344 if (retval != 0) 3345 break; 3346 3347 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3348 (uintmax_t)port->wwnn); 3349 if (retval != 0) 3350 break; 3351 3352 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3353 (uintmax_t)port->wwpn); 3354 if (retval != 0) 3355 break; 3356 3357 if (port->port_info != NULL) { 3358 retval = port->port_info(port->onoff_arg, sb); 3359 if (retval != 0) 3360 break; 3361 } 3362 STAILQ_FOREACH(opt, &port->options, links) { 3363 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3364 opt->name, opt->value, opt->name); 3365 if (retval != 0) 3366 break; 3367 } 3368 3369 retval = sbuf_printf(sb, "</targ_port>\n"); 3370 if (retval != 0) 3371 break; 3372 } 3373 mtx_unlock(&softc->ctl_lock); 3374 3375 if ((retval != 0) 3376 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3377 retval = 0; 3378 sbuf_delete(sb); 3379 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3380 snprintf(list->error_str, sizeof(list->error_str), 3381 "Out of space, %d bytes is too small", 3382 list->alloc_len); 3383 break; 3384 } 3385 3386 sbuf_finish(sb); 3387 3388 retval = copyout(sbuf_data(sb), list->lun_xml, 3389 sbuf_len(sb) + 1); 3390 3391 list->fill_len = sbuf_len(sb) + 1; 3392 list->status = CTL_LUN_LIST_OK; 3393 sbuf_delete(sb); 3394 break; 3395 } 3396 default: { 3397 /* XXX KDM should we fix this? */ 3398#if 0 3399 struct ctl_backend_driver *backend; 3400 unsigned int type; 3401 int found; 3402 3403 found = 0; 3404 3405 /* 3406 * We encode the backend type as the ioctl type for backend 3407 * ioctls. So parse it out here, and then search for a 3408 * backend of this type. 3409 */ 3410 type = _IOC_TYPE(cmd); 3411 3412 STAILQ_FOREACH(backend, &softc->be_list, links) { 3413 if (backend->type == type) { 3414 found = 1; 3415 break; 3416 } 3417 } 3418 if (found == 0) { 3419 printf("ctl: unknown ioctl command %#lx or backend " 3420 "%d\n", cmd, type); 3421 retval = EINVAL; 3422 break; 3423 } 3424 retval = backend->ioctl(dev, cmd, addr, flag, td); 3425#endif 3426 retval = ENOTTY; 3427 break; 3428 } 3429 } 3430 return (retval); 3431} 3432 3433uint32_t 3434ctl_get_initindex(struct ctl_nexus *nexus) 3435{ 3436 if (nexus->targ_port < CTL_MAX_PORTS) 3437 return (nexus->initid.id + 3438 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3439 else 3440 return (nexus->initid.id + 3441 ((nexus->targ_port - CTL_MAX_PORTS) * 3442 CTL_MAX_INIT_PER_PORT)); 3443} 3444 3445uint32_t 3446ctl_get_resindex(struct ctl_nexus *nexus) 3447{ 3448 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3449} 3450 3451uint32_t 3452ctl_port_idx(int port_num) 3453{ 3454 if (port_num < CTL_MAX_PORTS) 3455 return(port_num); 3456 else 3457 return(port_num - CTL_MAX_PORTS); 3458} 3459 3460static uint32_t 3461ctl_map_lun(int port_num, uint32_t lun_id) 3462{ 3463 struct ctl_port *port; 3464 3465 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3466 if (port == NULL) 3467 return (UINT32_MAX); 3468 if (port->lun_map == NULL) 3469 return (lun_id); 3470 return (port->lun_map(port->targ_lun_arg, lun_id)); 3471} 3472 3473static uint32_t 3474ctl_map_lun_back(int port_num, uint32_t lun_id) 3475{ 3476 struct ctl_port *port; 3477 uint32_t i; 3478 3479 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3480 if (port->lun_map == NULL) 3481 return (lun_id); 3482 for (i = 0; i < CTL_MAX_LUNS; i++) { 3483 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3484 return (i); 3485 } 3486 return (UINT32_MAX); 3487} 3488 3489/* 3490 * Note: This only works for bitmask sizes that are at least 32 bits, and 3491 * that are a power of 2. 3492 */ 3493int 3494ctl_ffz(uint32_t *mask, uint32_t size) 3495{ 3496 uint32_t num_chunks, num_pieces; 3497 int i, j; 3498 3499 num_chunks = (size >> 5); 3500 if (num_chunks == 0) 3501 num_chunks++; 3502 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3503 3504 for (i = 0; i < num_chunks; i++) { 3505 for (j = 0; j < num_pieces; j++) { 3506 if ((mask[i] & (1 << j)) == 0) 3507 return ((i << 5) + j); 3508 } 3509 } 3510 3511 return (-1); 3512} 3513 3514int 3515ctl_set_mask(uint32_t *mask, uint32_t bit) 3516{ 3517 uint32_t chunk, piece; 3518 3519 chunk = bit >> 5; 3520 piece = bit % (sizeof(uint32_t) * 8); 3521 3522 if ((mask[chunk] & (1 << piece)) != 0) 3523 return (-1); 3524 else 3525 mask[chunk] |= (1 << piece); 3526 3527 return (0); 3528} 3529 3530int 3531ctl_clear_mask(uint32_t *mask, uint32_t bit) 3532{ 3533 uint32_t chunk, piece; 3534 3535 chunk = bit >> 5; 3536 piece = bit % (sizeof(uint32_t) * 8); 3537 3538 if ((mask[chunk] & (1 << piece)) == 0) 3539 return (-1); 3540 else 3541 mask[chunk] &= ~(1 << piece); 3542 3543 return (0); 3544} 3545 3546int 3547ctl_is_set(uint32_t *mask, uint32_t bit) 3548{ 3549 uint32_t chunk, piece; 3550 3551 chunk = bit >> 5; 3552 piece = bit % (sizeof(uint32_t) * 8); 3553 3554 if ((mask[chunk] & (1 << piece)) == 0) 3555 return (0); 3556 else 3557 return (1); 3558} 3559 3560#ifdef unused 3561/* 3562 * The bus, target and lun are optional, they can be filled in later. 3563 * can_wait is used to determine whether we can wait on the malloc or not. 3564 */ 3565union ctl_io* 3566ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3567 uint32_t targ_lun, int can_wait) 3568{ 3569 union ctl_io *io; 3570 3571 if (can_wait) 3572 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3573 else 3574 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3575 3576 if (io != NULL) { 3577 io->io_hdr.io_type = io_type; 3578 io->io_hdr.targ_port = targ_port; 3579 /* 3580 * XXX KDM this needs to change/go away. We need to move 3581 * to a preallocated pool of ctl_scsiio structures. 3582 */ 3583 io->io_hdr.nexus.targ_target.id = targ_target; 3584 io->io_hdr.nexus.targ_lun = targ_lun; 3585 } 3586 3587 return (io); 3588} 3589 3590void 3591ctl_kfree_io(union ctl_io *io) 3592{ 3593 free(io, M_CTL); 3594} 3595#endif /* unused */ 3596 3597/* 3598 * ctl_softc, pool_type, total_ctl_io are passed in. 3599 * npool is passed out. 3600 */ 3601int 3602ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3603 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3604{ 3605 uint32_t i; 3606 union ctl_io *cur_io, *next_io; 3607 struct ctl_io_pool *pool; 3608 int retval; 3609 3610 retval = 0; 3611 3612 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3613 M_NOWAIT | M_ZERO); 3614 if (pool == NULL) { 3615 retval = ENOMEM; 3616 goto bailout; 3617 } 3618 3619 pool->type = pool_type; 3620 pool->ctl_softc = ctl_softc; 3621 3622 mtx_lock(&ctl_softc->pool_lock); 3623 pool->id = ctl_softc->cur_pool_id++; 3624 mtx_unlock(&ctl_softc->pool_lock); 3625 3626 pool->flags = CTL_POOL_FLAG_NONE; 3627 pool->refcount = 1; /* Reference for validity. */ 3628 STAILQ_INIT(&pool->free_queue); 3629 3630 /* 3631 * XXX KDM other options here: 3632 * - allocate a page at a time 3633 * - allocate one big chunk of memory. 3634 * Page allocation might work well, but would take a little more 3635 * tracking. 3636 */ 3637 for (i = 0; i < total_ctl_io; i++) { 3638 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3639 M_NOWAIT); 3640 if (cur_io == NULL) { 3641 retval = ENOMEM; 3642 break; 3643 } 3644 cur_io->io_hdr.pool = pool; 3645 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3646 pool->total_ctl_io++; 3647 pool->free_ctl_io++; 3648 } 3649 3650 if (retval != 0) { 3651 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3652 cur_io != NULL; cur_io = next_io) { 3653 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3654 links); 3655 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3656 ctl_io_hdr, links); 3657 free(cur_io, M_CTLIO); 3658 } 3659 3660 free(pool, M_CTL); 3661 goto bailout; 3662 } 3663 mtx_lock(&ctl_softc->pool_lock); 3664 ctl_softc->num_pools++; 3665 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3666 /* 3667 * Increment our usage count if this is an external consumer, so we 3668 * can't get unloaded until the external consumer (most likely a 3669 * FETD) unloads and frees his pool. 3670 * 3671 * XXX KDM will this increment the caller's module use count, or 3672 * mine? 3673 */ 3674#if 0 3675 if ((pool_type != CTL_POOL_EMERGENCY) 3676 && (pool_type != CTL_POOL_INTERNAL) 3677 && (pool_type != CTL_POOL_4OTHERSC)) 3678 MOD_INC_USE_COUNT; 3679#endif 3680 3681 mtx_unlock(&ctl_softc->pool_lock); 3682 3683 *npool = pool; 3684 3685bailout: 3686 3687 return (retval); 3688} 3689 3690static int 3691ctl_pool_acquire(struct ctl_io_pool *pool) 3692{ 3693 3694 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3695 3696 if (pool->flags & CTL_POOL_FLAG_INVALID) 3697 return (EINVAL); 3698 3699 pool->refcount++; 3700 3701 return (0); 3702} 3703 3704static void 3705ctl_pool_release(struct ctl_io_pool *pool) 3706{ 3707 struct ctl_softc *ctl_softc = pool->ctl_softc; 3708 union ctl_io *io; 3709 3710 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3711 3712 if (--pool->refcount != 0) 3713 return; 3714 3715 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3716 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3717 links); 3718 free(io, M_CTLIO); 3719 } 3720 3721 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3722 ctl_softc->num_pools--; 3723 3724 /* 3725 * XXX KDM will this decrement the caller's usage count or mine? 3726 */ 3727#if 0 3728 if ((pool->type != CTL_POOL_EMERGENCY) 3729 && (pool->type != CTL_POOL_INTERNAL) 3730 && (pool->type != CTL_POOL_4OTHERSC)) 3731 MOD_DEC_USE_COUNT; 3732#endif 3733 3734 free(pool, M_CTL); 3735} 3736 3737void 3738ctl_pool_free(struct ctl_io_pool *pool) 3739{ 3740 struct ctl_softc *ctl_softc; 3741 3742 if (pool == NULL) 3743 return; 3744 3745 ctl_softc = pool->ctl_softc; 3746 mtx_lock(&ctl_softc->pool_lock); 3747 pool->flags |= CTL_POOL_FLAG_INVALID; 3748 ctl_pool_release(pool); 3749 mtx_unlock(&ctl_softc->pool_lock); 3750} 3751 3752/* 3753 * This routine does not block (except for spinlocks of course). 3754 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3755 * possible. 3756 */ 3757union ctl_io * 3758ctl_alloc_io(void *pool_ref) 3759{ 3760 union ctl_io *io; 3761 struct ctl_softc *ctl_softc; 3762 struct ctl_io_pool *pool, *npool; 3763 struct ctl_io_pool *emergency_pool; 3764 3765 pool = (struct ctl_io_pool *)pool_ref; 3766 3767 if (pool == NULL) { 3768 printf("%s: pool is NULL\n", __func__); 3769 return (NULL); 3770 } 3771 3772 emergency_pool = NULL; 3773 3774 ctl_softc = pool->ctl_softc; 3775 3776 mtx_lock(&ctl_softc->pool_lock); 3777 /* 3778 * First, try to get the io structure from the user's pool. 3779 */ 3780 if (ctl_pool_acquire(pool) == 0) { 3781 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3782 if (io != NULL) { 3783 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3784 pool->total_allocated++; 3785 pool->free_ctl_io--; 3786 mtx_unlock(&ctl_softc->pool_lock); 3787 return (io); 3788 } else 3789 ctl_pool_release(pool); 3790 } 3791 /* 3792 * If he doesn't have any io structures left, search for an 3793 * emergency pool and grab one from there. 3794 */ 3795 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3796 if (npool->type != CTL_POOL_EMERGENCY) 3797 continue; 3798 3799 if (ctl_pool_acquire(npool) != 0) 3800 continue; 3801 3802 emergency_pool = npool; 3803 3804 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3805 if (io != NULL) { 3806 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3807 npool->total_allocated++; 3808 npool->free_ctl_io--; 3809 mtx_unlock(&ctl_softc->pool_lock); 3810 return (io); 3811 } else 3812 ctl_pool_release(npool); 3813 } 3814 3815 /* Drop the spinlock before we malloc */ 3816 mtx_unlock(&ctl_softc->pool_lock); 3817 3818 /* 3819 * The emergency pool (if it exists) didn't have one, so try an 3820 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3821 */ 3822 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3823 if (io != NULL) { 3824 /* 3825 * If the emergency pool exists but is empty, add this 3826 * ctl_io to its list when it gets freed. 3827 */ 3828 if (emergency_pool != NULL) { 3829 mtx_lock(&ctl_softc->pool_lock); 3830 if (ctl_pool_acquire(emergency_pool) == 0) { 3831 io->io_hdr.pool = emergency_pool; 3832 emergency_pool->total_ctl_io++; 3833 /* 3834 * Need to bump this, otherwise 3835 * total_allocated and total_freed won't 3836 * match when we no longer have anything 3837 * outstanding. 3838 */ 3839 emergency_pool->total_allocated++; 3840 } 3841 mtx_unlock(&ctl_softc->pool_lock); 3842 } else 3843 io->io_hdr.pool = NULL; 3844 } 3845 3846 return (io); 3847} 3848 3849void 3850ctl_free_io(union ctl_io *io) 3851{ 3852 if (io == NULL) 3853 return; 3854 3855 /* 3856 * If this ctl_io has a pool, return it to that pool. 3857 */ 3858 if (io->io_hdr.pool != NULL) { 3859 struct ctl_io_pool *pool; 3860 3861 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3862 mtx_lock(&pool->ctl_softc->pool_lock); 3863 io->io_hdr.io_type = 0xff; 3864 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3865 pool->total_freed++; 3866 pool->free_ctl_io++; 3867 ctl_pool_release(pool); 3868 mtx_unlock(&pool->ctl_softc->pool_lock); 3869 } else { 3870 /* 3871 * Otherwise, just free it. We probably malloced it and 3872 * the emergency pool wasn't available. 3873 */ 3874 free(io, M_CTLIO); 3875 } 3876 3877} 3878 3879void 3880ctl_zero_io(union ctl_io *io) 3881{ 3882 void *pool_ref; 3883 3884 if (io == NULL) 3885 return; 3886 3887 /* 3888 * May need to preserve linked list pointers at some point too. 3889 */ 3890 pool_ref = io->io_hdr.pool; 3891 3892 memset(io, 0, sizeof(*io)); 3893 3894 io->io_hdr.pool = pool_ref; 3895} 3896 3897/* 3898 * This routine is currently used for internal copies of ctl_ios that need 3899 * to persist for some reason after we've already returned status to the 3900 * FETD. (Thus the flag set.) 3901 * 3902 * XXX XXX 3903 * Note that this makes a blind copy of all fields in the ctl_io, except 3904 * for the pool reference. This includes any memory that has been 3905 * allocated! That memory will no longer be valid after done has been 3906 * called, so this would be VERY DANGEROUS for command that actually does 3907 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3908 * start and stop commands, which don't transfer any data, so this is not a 3909 * problem. If it is used for anything else, the caller would also need to 3910 * allocate data buffer space and this routine would need to be modified to 3911 * copy the data buffer(s) as well. 3912 */ 3913void 3914ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3915{ 3916 void *pool_ref; 3917 3918 if ((src == NULL) 3919 || (dest == NULL)) 3920 return; 3921 3922 /* 3923 * May need to preserve linked list pointers at some point too. 3924 */ 3925 pool_ref = dest->io_hdr.pool; 3926 3927 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3928 3929 dest->io_hdr.pool = pool_ref; 3930 /* 3931 * We need to know that this is an internal copy, and doesn't need 3932 * to get passed back to the FETD that allocated it. 3933 */ 3934 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3935} 3936 3937#ifdef NEEDTOPORT 3938static void 3939ctl_update_power_subpage(struct copan_power_subpage *page) 3940{ 3941 int num_luns, num_partitions, config_type; 3942 struct ctl_softc *softc; 3943 cs_BOOL_t aor_present, shelf_50pct_power; 3944 cs_raidset_personality_t rs_type; 3945 int max_active_luns; 3946 3947 softc = control_softc; 3948 3949 /* subtract out the processor LUN */ 3950 num_luns = softc->num_luns - 1; 3951 /* 3952 * Default to 7 LUNs active, which was the only number we allowed 3953 * in the past. 3954 */ 3955 max_active_luns = 7; 3956 3957 num_partitions = config_GetRsPartitionInfo(); 3958 config_type = config_GetConfigType(); 3959 shelf_50pct_power = config_GetShelfPowerMode(); 3960 aor_present = config_IsAorRsPresent(); 3961 3962 rs_type = ddb_GetRsRaidType(1); 3963 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3964 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3965 EPRINT(0, "Unsupported RS type %d!", rs_type); 3966 } 3967 3968 3969 page->total_luns = num_luns; 3970 3971 switch (config_type) { 3972 case 40: 3973 /* 3974 * In a 40 drive configuration, it doesn't matter what DC 3975 * cards we have, whether we have AOR enabled or not, 3976 * partitioning or not, or what type of RAIDset we have. 3977 * In that scenario, we can power up every LUN we present 3978 * to the user. 3979 */ 3980 max_active_luns = num_luns; 3981 3982 break; 3983 case 64: 3984 if (shelf_50pct_power == CS_FALSE) { 3985 /* 25% power */ 3986 if (aor_present == CS_TRUE) { 3987 if (rs_type == 3988 CS_RAIDSET_PERSONALITY_RAID5) { 3989 max_active_luns = 7; 3990 } else if (rs_type == 3991 CS_RAIDSET_PERSONALITY_RAID1){ 3992 max_active_luns = 14; 3993 } else { 3994 /* XXX KDM now what?? */ 3995 } 3996 } else { 3997 if (rs_type == 3998 CS_RAIDSET_PERSONALITY_RAID5) { 3999 max_active_luns = 8; 4000 } else if (rs_type == 4001 CS_RAIDSET_PERSONALITY_RAID1){ 4002 max_active_luns = 16; 4003 } else { 4004 /* XXX KDM now what?? */ 4005 } 4006 } 4007 } else { 4008 /* 50% power */ 4009 /* 4010 * With 50% power in a 64 drive configuration, we 4011 * can power all LUNs we present. 4012 */ 4013 max_active_luns = num_luns; 4014 } 4015 break; 4016 case 112: 4017 if (shelf_50pct_power == CS_FALSE) { 4018 /* 25% power */ 4019 if (aor_present == CS_TRUE) { 4020 if (rs_type == 4021 CS_RAIDSET_PERSONALITY_RAID5) { 4022 max_active_luns = 7; 4023 } else if (rs_type == 4024 CS_RAIDSET_PERSONALITY_RAID1){ 4025 max_active_luns = 14; 4026 } else { 4027 /* XXX KDM now what?? */ 4028 } 4029 } else { 4030 if (rs_type == 4031 CS_RAIDSET_PERSONALITY_RAID5) { 4032 max_active_luns = 8; 4033 } else if (rs_type == 4034 CS_RAIDSET_PERSONALITY_RAID1){ 4035 max_active_luns = 16; 4036 } else { 4037 /* XXX KDM now what?? */ 4038 } 4039 } 4040 } else { 4041 /* 50% power */ 4042 if (aor_present == CS_TRUE) { 4043 if (rs_type == 4044 CS_RAIDSET_PERSONALITY_RAID5) { 4045 max_active_luns = 14; 4046 } else if (rs_type == 4047 CS_RAIDSET_PERSONALITY_RAID1){ 4048 /* 4049 * We're assuming here that disk 4050 * caching is enabled, and so we're 4051 * able to power up half of each 4052 * LUN, and cache all writes. 4053 */ 4054 max_active_luns = num_luns; 4055 } else { 4056 /* XXX KDM now what?? */ 4057 } 4058 } else { 4059 if (rs_type == 4060 CS_RAIDSET_PERSONALITY_RAID5) { 4061 max_active_luns = 15; 4062 } else if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID1){ 4064 max_active_luns = 30; 4065 } else { 4066 /* XXX KDM now what?? */ 4067 } 4068 } 4069 } 4070 break; 4071 default: 4072 /* 4073 * In this case, we have an unknown configuration, so we 4074 * just use the default from above. 4075 */ 4076 break; 4077 } 4078 4079 page->max_active_luns = max_active_luns; 4080#if 0 4081 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4082 page->total_luns, page->max_active_luns); 4083#endif 4084} 4085#endif /* NEEDTOPORT */ 4086 4087/* 4088 * This routine could be used in the future to load default and/or saved 4089 * mode page parameters for a particuar lun. 4090 */ 4091static int 4092ctl_init_page_index(struct ctl_lun *lun) 4093{ 4094 int i; 4095 struct ctl_page_index *page_index; 4096 struct ctl_softc *softc; 4097 const char *value; 4098 4099 memcpy(&lun->mode_pages.index, page_index_template, 4100 sizeof(page_index_template)); 4101 4102 softc = lun->ctl_softc; 4103 4104 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4105 4106 page_index = &lun->mode_pages.index[i]; 4107 /* 4108 * If this is a disk-only mode page, there's no point in 4109 * setting it up. For some pages, we have to have some 4110 * basic information about the disk in order to calculate the 4111 * mode page data. 4112 */ 4113 if ((lun->be_lun->lun_type != T_DIRECT) 4114 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4115 continue; 4116 4117 switch (page_index->page_code & SMPH_PC_MASK) { 4118 case SMS_FORMAT_DEVICE_PAGE: { 4119 struct scsi_format_page *format_page; 4120 4121 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4122 panic("subpage is incorrect!"); 4123 4124 /* 4125 * Sectors per track are set above. Bytes per 4126 * sector need to be set here on a per-LUN basis. 4127 */ 4128 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4129 &format_page_default, 4130 sizeof(format_page_default)); 4131 memcpy(&lun->mode_pages.format_page[ 4132 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4133 sizeof(format_page_changeable)); 4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4135 &format_page_default, 4136 sizeof(format_page_default)); 4137 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4138 &format_page_default, 4139 sizeof(format_page_default)); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_CURRENT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_DEFAULT]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 format_page = &lun->mode_pages.format_page[ 4152 CTL_PAGE_SAVED]; 4153 scsi_ulto2b(lun->be_lun->blocksize, 4154 format_page->bytes_per_sector); 4155 4156 page_index->page_data = 4157 (uint8_t *)lun->mode_pages.format_page; 4158 break; 4159 } 4160 case SMS_RIGID_DISK_PAGE: { 4161 struct scsi_rigid_disk_page *rigid_disk_page; 4162 uint32_t sectors_per_cylinder; 4163 uint64_t cylinders; 4164#ifndef __XSCALE__ 4165 int shift; 4166#endif /* !__XSCALE__ */ 4167 4168 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4169 panic("invalid subpage value %d", 4170 page_index->subpage); 4171 4172 /* 4173 * Rotation rate and sectors per track are set 4174 * above. We calculate the cylinders here based on 4175 * capacity. Due to the number of heads and 4176 * sectors per track we're using, smaller arrays 4177 * may turn out to have 0 cylinders. Linux and 4178 * FreeBSD don't pay attention to these mode pages 4179 * to figure out capacity, but Solaris does. It 4180 * seems to deal with 0 cylinders just fine, and 4181 * works out a fake geometry based on the capacity. 4182 */ 4183 memcpy(&lun->mode_pages.rigid_disk_page[ 4184 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4185 sizeof(rigid_disk_page_default)); 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4188 sizeof(rigid_disk_page_changeable)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4191 sizeof(rigid_disk_page_default)); 4192 memcpy(&lun->mode_pages.rigid_disk_page[ 4193 CTL_PAGE_SAVED], &rigid_disk_page_default, 4194 sizeof(rigid_disk_page_default)); 4195 4196 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4197 CTL_DEFAULT_HEADS; 4198 4199 /* 4200 * The divide method here will be more accurate, 4201 * probably, but results in floating point being 4202 * used in the kernel on i386 (__udivdi3()). On the 4203 * XScale, though, __udivdi3() is implemented in 4204 * software. 4205 * 4206 * The shift method for cylinder calculation is 4207 * accurate if sectors_per_cylinder is a power of 4208 * 2. Otherwise it might be slightly off -- you 4209 * might have a bit of a truncation problem. 4210 */ 4211#ifdef __XSCALE__ 4212 cylinders = (lun->be_lun->maxlba + 1) / 4213 sectors_per_cylinder; 4214#else 4215 for (shift = 31; shift > 0; shift--) { 4216 if (sectors_per_cylinder & (1 << shift)) 4217 break; 4218 } 4219 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4220#endif 4221 4222 /* 4223 * We've basically got 3 bytes, or 24 bits for the 4224 * cylinder size in the mode page. If we're over, 4225 * just round down to 2^24. 4226 */ 4227 if (cylinders > 0xffffff) 4228 cylinders = 0xffffff; 4229 4230 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4231 CTL_PAGE_CURRENT]; 4232 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4233 4234 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4235 CTL_PAGE_DEFAULT]; 4236 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4237 4238 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4239 CTL_PAGE_SAVED]; 4240 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4241 4242 page_index->page_data = 4243 (uint8_t *)lun->mode_pages.rigid_disk_page; 4244 break; 4245 } 4246 case SMS_CACHING_PAGE: { 4247 struct scsi_caching_page *caching_page; 4248 4249 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4250 panic("invalid subpage value %d", 4251 page_index->subpage); 4252 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4253 &caching_page_default, 4254 sizeof(caching_page_default)); 4255 memcpy(&lun->mode_pages.caching_page[ 4256 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4257 sizeof(caching_page_changeable)); 4258 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4259 &caching_page_default, 4260 sizeof(caching_page_default)); 4261 caching_page = &lun->mode_pages.caching_page[ 4262 CTL_PAGE_SAVED]; 4263 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4264 if (value != NULL && strcmp(value, "off") == 0) 4265 caching_page->flags1 &= ~SCP_WCE; 4266 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4267 if (value != NULL && strcmp(value, "off") == 0) 4268 caching_page->flags1 |= SCP_RCD; 4269 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4270 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4271 sizeof(caching_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.caching_page; 4274 break; 4275 } 4276 case SMS_CONTROL_MODE_PAGE: { 4277 struct scsi_control_page *control_page; 4278 4279 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4280 panic("invalid subpage value %d", 4281 page_index->subpage); 4282 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 memcpy(&lun->mode_pages.control_page[ 4287 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4288 sizeof(control_page_changeable)); 4289 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4290 &control_page_default, 4291 sizeof(control_page_default)); 4292 control_page = &lun->mode_pages.control_page[ 4293 CTL_PAGE_SAVED]; 4294 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4295 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4296 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4297 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4298 } 4299 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4300 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4301 sizeof(control_page_default)); 4302 page_index->page_data = 4303 (uint8_t *)lun->mode_pages.control_page; 4304 break; 4305 4306 } 4307 case SMS_VENDOR_SPECIFIC_PAGE:{ 4308 switch (page_index->subpage) { 4309 case PWR_SUBPAGE_CODE: { 4310 struct copan_power_subpage *current_page, 4311 *saved_page; 4312 4313 memcpy(&lun->mode_pages.power_subpage[ 4314 CTL_PAGE_CURRENT], 4315 &power_page_default, 4316 sizeof(power_page_default)); 4317 memcpy(&lun->mode_pages.power_subpage[ 4318 CTL_PAGE_CHANGEABLE], 4319 &power_page_changeable, 4320 sizeof(power_page_changeable)); 4321 memcpy(&lun->mode_pages.power_subpage[ 4322 CTL_PAGE_DEFAULT], 4323 &power_page_default, 4324 sizeof(power_page_default)); 4325 memcpy(&lun->mode_pages.power_subpage[ 4326 CTL_PAGE_SAVED], 4327 &power_page_default, 4328 sizeof(power_page_default)); 4329 page_index->page_data = 4330 (uint8_t *)lun->mode_pages.power_subpage; 4331 4332 current_page = (struct copan_power_subpage *) 4333 (page_index->page_data + 4334 (page_index->page_len * 4335 CTL_PAGE_CURRENT)); 4336 saved_page = (struct copan_power_subpage *) 4337 (page_index->page_data + 4338 (page_index->page_len * 4339 CTL_PAGE_SAVED)); 4340 break; 4341 } 4342 case APS_SUBPAGE_CODE: { 4343 struct copan_aps_subpage *current_page, 4344 *saved_page; 4345 4346 // This gets set multiple times but 4347 // it should always be the same. It's 4348 // only done during init so who cares. 4349 index_to_aps_page = i; 4350 4351 memcpy(&lun->mode_pages.aps_subpage[ 4352 CTL_PAGE_CURRENT], 4353 &aps_page_default, 4354 sizeof(aps_page_default)); 4355 memcpy(&lun->mode_pages.aps_subpage[ 4356 CTL_PAGE_CHANGEABLE], 4357 &aps_page_changeable, 4358 sizeof(aps_page_changeable)); 4359 memcpy(&lun->mode_pages.aps_subpage[ 4360 CTL_PAGE_DEFAULT], 4361 &aps_page_default, 4362 sizeof(aps_page_default)); 4363 memcpy(&lun->mode_pages.aps_subpage[ 4364 CTL_PAGE_SAVED], 4365 &aps_page_default, 4366 sizeof(aps_page_default)); 4367 page_index->page_data = 4368 (uint8_t *)lun->mode_pages.aps_subpage; 4369 4370 current_page = (struct copan_aps_subpage *) 4371 (page_index->page_data + 4372 (page_index->page_len * 4373 CTL_PAGE_CURRENT)); 4374 saved_page = (struct copan_aps_subpage *) 4375 (page_index->page_data + 4376 (page_index->page_len * 4377 CTL_PAGE_SAVED)); 4378 break; 4379 } 4380 case DBGCNF_SUBPAGE_CODE: { 4381 struct copan_debugconf_subpage *current_page, 4382 *saved_page; 4383 4384 memcpy(&lun->mode_pages.debugconf_subpage[ 4385 CTL_PAGE_CURRENT], 4386 &debugconf_page_default, 4387 sizeof(debugconf_page_default)); 4388 memcpy(&lun->mode_pages.debugconf_subpage[ 4389 CTL_PAGE_CHANGEABLE], 4390 &debugconf_page_changeable, 4391 sizeof(debugconf_page_changeable)); 4392 memcpy(&lun->mode_pages.debugconf_subpage[ 4393 CTL_PAGE_DEFAULT], 4394 &debugconf_page_default, 4395 sizeof(debugconf_page_default)); 4396 memcpy(&lun->mode_pages.debugconf_subpage[ 4397 CTL_PAGE_SAVED], 4398 &debugconf_page_default, 4399 sizeof(debugconf_page_default)); 4400 page_index->page_data = 4401 (uint8_t *)lun->mode_pages.debugconf_subpage; 4402 4403 current_page = (struct copan_debugconf_subpage *) 4404 (page_index->page_data + 4405 (page_index->page_len * 4406 CTL_PAGE_CURRENT)); 4407 saved_page = (struct copan_debugconf_subpage *) 4408 (page_index->page_data + 4409 (page_index->page_len * 4410 CTL_PAGE_SAVED)); 4411 break; 4412 } 4413 default: 4414 panic("invalid subpage value %d", 4415 page_index->subpage); 4416 break; 4417 } 4418 break; 4419 } 4420 default: 4421 panic("invalid page value %d", 4422 page_index->page_code & SMPH_PC_MASK); 4423 break; 4424 } 4425 } 4426 4427 return (CTL_RETVAL_COMPLETE); 4428} 4429 4430/* 4431 * LUN allocation. 4432 * 4433 * Requirements: 4434 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4435 * wants us to allocate the LUN and he can block. 4436 * - ctl_softc is always set 4437 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4438 * 4439 * Returns 0 for success, non-zero (errno) for failure. 4440 */ 4441static int 4442ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4443 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4444{ 4445 struct ctl_lun *nlun, *lun; 4446 struct ctl_port *port; 4447 struct scsi_vpd_id_descriptor *desc; 4448 struct scsi_vpd_id_t10 *t10id; 4449 const char *eui, *naa, *scsiname, *vendor, *value; 4450 int lun_number, i, lun_malloced; 4451 int devidlen, idlen1, idlen2 = 0, len; 4452 4453 if (be_lun == NULL) 4454 return (EINVAL); 4455 4456 /* 4457 * We currently only support Direct Access or Processor LUN types. 4458 */ 4459 switch (be_lun->lun_type) { 4460 case T_DIRECT: 4461 break; 4462 case T_PROCESSOR: 4463 break; 4464 case T_SEQUENTIAL: 4465 case T_CHANGER: 4466 default: 4467 be_lun->lun_config_status(be_lun->be_lun, 4468 CTL_LUN_CONFIG_FAILURE); 4469 break; 4470 } 4471 if (ctl_lun == NULL) { 4472 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4473 lun_malloced = 1; 4474 } else { 4475 lun_malloced = 0; 4476 lun = ctl_lun; 4477 } 4478 4479 memset(lun, 0, sizeof(*lun)); 4480 if (lun_malloced) 4481 lun->flags = CTL_LUN_MALLOCED; 4482 4483 /* Generate LUN ID. */ 4484 devidlen = max(CTL_DEVID_MIN_LEN, 4485 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4486 idlen1 = sizeof(*t10id) + devidlen; 4487 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4488 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4489 if (scsiname != NULL) { 4490 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4491 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4492 } 4493 eui = ctl_get_opt(&be_lun->options, "eui"); 4494 if (eui != NULL) { 4495 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4496 } 4497 naa = ctl_get_opt(&be_lun->options, "naa"); 4498 if (naa != NULL) { 4499 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4500 } 4501 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4502 M_CTL, M_WAITOK | M_ZERO); 4503 lun->lun_devid->len = len; 4504 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4505 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4506 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4507 desc->length = idlen1; 4508 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4509 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4510 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4511 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4512 } else { 4513 strncpy(t10id->vendor, vendor, 4514 min(sizeof(t10id->vendor), strlen(vendor))); 4515 } 4516 strncpy((char *)t10id->vendor_spec_id, 4517 (char *)be_lun->device_id, devidlen); 4518 if (scsiname != NULL) { 4519 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4520 desc->length); 4521 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4522 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4523 SVPD_ID_TYPE_SCSI_NAME; 4524 desc->length = idlen2; 4525 strlcpy(desc->identifier, scsiname, idlen2); 4526 } 4527 if (eui != NULL) { 4528 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4529 desc->length); 4530 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4531 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4532 SVPD_ID_TYPE_EUI64; 4533 desc->length = 8; 4534 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4535 } 4536 if (naa != NULL) { 4537 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4538 desc->length); 4539 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4540 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4541 SVPD_ID_TYPE_NAA; 4542 desc->length = 8; 4543 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4544 } 4545 4546 mtx_lock(&ctl_softc->ctl_lock); 4547 /* 4548 * See if the caller requested a particular LUN number. If so, see 4549 * if it is available. Otherwise, allocate the first available LUN. 4550 */ 4551 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4552 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4553 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4554 mtx_unlock(&ctl_softc->ctl_lock); 4555 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4556 printf("ctl: requested LUN ID %d is higher " 4557 "than CTL_MAX_LUNS - 1 (%d)\n", 4558 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4559 } else { 4560 /* 4561 * XXX KDM return an error, or just assign 4562 * another LUN ID in this case?? 4563 */ 4564 printf("ctl: requested LUN ID %d is already " 4565 "in use\n", be_lun->req_lun_id); 4566 } 4567 if (lun->flags & CTL_LUN_MALLOCED) 4568 free(lun, M_CTL); 4569 be_lun->lun_config_status(be_lun->be_lun, 4570 CTL_LUN_CONFIG_FAILURE); 4571 return (ENOSPC); 4572 } 4573 lun_number = be_lun->req_lun_id; 4574 } else { 4575 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4576 if (lun_number == -1) { 4577 mtx_unlock(&ctl_softc->ctl_lock); 4578 printf("ctl: can't allocate LUN on target %ju, out of " 4579 "LUNs\n", (uintmax_t)target_id.id); 4580 if (lun->flags & CTL_LUN_MALLOCED) 4581 free(lun, M_CTL); 4582 be_lun->lun_config_status(be_lun->be_lun, 4583 CTL_LUN_CONFIG_FAILURE); 4584 return (ENOSPC); 4585 } 4586 } 4587 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4588 4589 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4590 lun->target = target_id; 4591 lun->lun = lun_number; 4592 lun->be_lun = be_lun; 4593 /* 4594 * The processor LUN is always enabled. Disk LUNs come on line 4595 * disabled, and must be enabled by the backend. 4596 */ 4597 lun->flags |= CTL_LUN_DISABLED; 4598 lun->backend = be_lun->be; 4599 be_lun->ctl_lun = lun; 4600 be_lun->lun_id = lun_number; 4601 atomic_add_int(&be_lun->be->num_luns, 1); 4602 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4603 lun->flags |= CTL_LUN_OFFLINE; 4604 4605 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4606 lun->flags |= CTL_LUN_STOPPED; 4607 4608 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4609 lun->flags |= CTL_LUN_INOPERABLE; 4610 4611 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4612 lun->flags |= CTL_LUN_PRIMARY_SC; 4613 4614 value = ctl_get_opt(&be_lun->options, "readonly"); 4615 if (value != NULL && strcmp(value, "on") == 0) 4616 lun->flags |= CTL_LUN_READONLY; 4617 4618 lun->ctl_softc = ctl_softc; 4619 TAILQ_INIT(&lun->ooa_queue); 4620 TAILQ_INIT(&lun->blocked_queue); 4621 STAILQ_INIT(&lun->error_list); 4622 ctl_tpc_lun_init(lun); 4623 4624 /* 4625 * Initialize the mode page index. 4626 */ 4627 ctl_init_page_index(lun); 4628 4629 /* 4630 * Set the poweron UA for all initiators on this LUN only. 4631 */ 4632 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4633 lun->pending_ua[i] = CTL_UA_POWERON; 4634 4635 /* 4636 * Now, before we insert this lun on the lun list, set the lun 4637 * inventory changed UA for all other luns. 4638 */ 4639 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4640 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4641 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4642 } 4643 } 4644 4645 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4646 4647 ctl_softc->ctl_luns[lun_number] = lun; 4648 4649 ctl_softc->num_luns++; 4650 4651 /* Setup statistics gathering */ 4652 lun->stats.device_type = be_lun->lun_type; 4653 lun->stats.lun_number = lun_number; 4654 if (lun->stats.device_type == T_DIRECT) 4655 lun->stats.blocksize = be_lun->blocksize; 4656 else 4657 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4658 for (i = 0;i < CTL_MAX_PORTS;i++) 4659 lun->stats.ports[i].targ_port = i; 4660 4661 mtx_unlock(&ctl_softc->ctl_lock); 4662 4663 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4664 4665 /* 4666 * Run through each registered FETD and bring it online if it isn't 4667 * already. Enable the target ID if it hasn't been enabled, and 4668 * enable this particular LUN. 4669 */ 4670 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4671 int retval; 4672 4673 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4674 if (retval != 0) { 4675 printf("ctl_alloc_lun: FETD %s port %d returned error " 4676 "%d for lun_enable on target %ju lun %d\n", 4677 port->port_name, port->targ_port, retval, 4678 (uintmax_t)target_id.id, lun_number); 4679 } else 4680 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4681 } 4682 return (0); 4683} 4684 4685/* 4686 * Delete a LUN. 4687 * Assumptions: 4688 * - LUN has already been marked invalid and any pending I/O has been taken 4689 * care of. 4690 */ 4691static int 4692ctl_free_lun(struct ctl_lun *lun) 4693{ 4694 struct ctl_softc *softc; 4695#if 0 4696 struct ctl_port *port; 4697#endif 4698 struct ctl_lun *nlun; 4699 int i; 4700 4701 softc = lun->ctl_softc; 4702 4703 mtx_assert(&softc->ctl_lock, MA_OWNED); 4704 4705 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4706 4707 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4708 4709 softc->ctl_luns[lun->lun] = NULL; 4710 4711 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4712 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4713 4714 softc->num_luns--; 4715 4716 /* 4717 * XXX KDM this scheme only works for a single target/multiple LUN 4718 * setup. It needs to be revamped for a multiple target scheme. 4719 * 4720 * XXX KDM this results in port->lun_disable() getting called twice, 4721 * once when ctl_disable_lun() is called, and a second time here. 4722 * We really need to re-think the LUN disable semantics. There 4723 * should probably be several steps/levels to LUN removal: 4724 * - disable 4725 * - invalidate 4726 * - free 4727 * 4728 * Right now we only have a disable method when communicating to 4729 * the front end ports, at least for individual LUNs. 4730 */ 4731#if 0 4732 STAILQ_FOREACH(port, &softc->port_list, links) { 4733 int retval; 4734 4735 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4736 lun->lun); 4737 if (retval != 0) { 4738 printf("ctl_free_lun: FETD %s port %d returned error " 4739 "%d for lun_disable on target %ju lun %jd\n", 4740 port->port_name, port->targ_port, retval, 4741 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4742 } 4743 4744 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4745 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4746 4747 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4748 if (retval != 0) { 4749 printf("ctl_free_lun: FETD %s port %d " 4750 "returned error %d for targ_disable on " 4751 "target %ju\n", port->port_name, 4752 port->targ_port, retval, 4753 (uintmax_t)lun->target.id); 4754 } else 4755 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4756 4757 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4758 continue; 4759 4760#if 0 4761 port->port_offline(port->onoff_arg); 4762 port->status &= ~CTL_PORT_STATUS_ONLINE; 4763#endif 4764 } 4765 } 4766#endif 4767 4768 /* 4769 * Tell the backend to free resources, if this LUN has a backend. 4770 */ 4771 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4772 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4773 4774 ctl_tpc_lun_shutdown(lun); 4775 mtx_destroy(&lun->lun_lock); 4776 free(lun->lun_devid, M_CTL); 4777 if (lun->flags & CTL_LUN_MALLOCED) 4778 free(lun, M_CTL); 4779 4780 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4781 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4782 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4783 } 4784 } 4785 4786 return (0); 4787} 4788 4789static void 4790ctl_create_lun(struct ctl_be_lun *be_lun) 4791{ 4792 struct ctl_softc *ctl_softc; 4793 4794 ctl_softc = control_softc; 4795 4796 /* 4797 * ctl_alloc_lun() should handle all potential failure cases. 4798 */ 4799 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4800} 4801 4802int 4803ctl_add_lun(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_softc *ctl_softc = control_softc; 4806 4807 mtx_lock(&ctl_softc->ctl_lock); 4808 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4809 mtx_unlock(&ctl_softc->ctl_lock); 4810 wakeup(&ctl_softc->pending_lun_queue); 4811 4812 return (0); 4813} 4814 4815int 4816ctl_enable_lun(struct ctl_be_lun *be_lun) 4817{ 4818 struct ctl_softc *ctl_softc; 4819 struct ctl_port *port, *nport; 4820 struct ctl_lun *lun; 4821 int retval; 4822 4823 ctl_softc = control_softc; 4824 4825 lun = (struct ctl_lun *)be_lun->ctl_lun; 4826 4827 mtx_lock(&ctl_softc->ctl_lock); 4828 mtx_lock(&lun->lun_lock); 4829 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4830 /* 4831 * eh? Why did we get called if the LUN is already 4832 * enabled? 4833 */ 4834 mtx_unlock(&lun->lun_lock); 4835 mtx_unlock(&ctl_softc->ctl_lock); 4836 return (0); 4837 } 4838 lun->flags &= ~CTL_LUN_DISABLED; 4839 mtx_unlock(&lun->lun_lock); 4840 4841 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4842 nport = STAILQ_NEXT(port, links); 4843 4844 /* 4845 * Drop the lock while we call the FETD's enable routine. 4846 * This can lead to a callback into CTL (at least in the 4847 * case of the internal initiator frontend. 4848 */ 4849 mtx_unlock(&ctl_softc->ctl_lock); 4850 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4851 mtx_lock(&ctl_softc->ctl_lock); 4852 if (retval != 0) { 4853 printf("%s: FETD %s port %d returned error " 4854 "%d for lun_enable on target %ju lun %jd\n", 4855 __func__, port->port_name, port->targ_port, retval, 4856 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4857 } 4858#if 0 4859 else { 4860 /* NOTE: TODO: why does lun enable affect port status? */ 4861 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4862 } 4863#endif 4864 } 4865 4866 mtx_unlock(&ctl_softc->ctl_lock); 4867 4868 return (0); 4869} 4870 4871int 4872ctl_disable_lun(struct ctl_be_lun *be_lun) 4873{ 4874 struct ctl_softc *ctl_softc; 4875 struct ctl_port *port; 4876 struct ctl_lun *lun; 4877 int retval; 4878 4879 ctl_softc = control_softc; 4880 4881 lun = (struct ctl_lun *)be_lun->ctl_lun; 4882 4883 mtx_lock(&ctl_softc->ctl_lock); 4884 mtx_lock(&lun->lun_lock); 4885 if (lun->flags & CTL_LUN_DISABLED) { 4886 mtx_unlock(&lun->lun_lock); 4887 mtx_unlock(&ctl_softc->ctl_lock); 4888 return (0); 4889 } 4890 lun->flags |= CTL_LUN_DISABLED; 4891 mtx_unlock(&lun->lun_lock); 4892 4893 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4894 mtx_unlock(&ctl_softc->ctl_lock); 4895 /* 4896 * Drop the lock before we call the frontend's disable 4897 * routine, to avoid lock order reversals. 4898 * 4899 * XXX KDM what happens if the frontend list changes while 4900 * we're traversing it? It's unlikely, but should be handled. 4901 */ 4902 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4903 lun->lun); 4904 mtx_lock(&ctl_softc->ctl_lock); 4905 if (retval != 0) { 4906 printf("ctl_alloc_lun: FETD %s port %d returned error " 4907 "%d for lun_disable on target %ju lun %jd\n", 4908 port->port_name, port->targ_port, retval, 4909 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4910 } 4911 } 4912 4913 mtx_unlock(&ctl_softc->ctl_lock); 4914 4915 return (0); 4916} 4917 4918int 4919ctl_start_lun(struct ctl_be_lun *be_lun) 4920{ 4921 struct ctl_softc *ctl_softc; 4922 struct ctl_lun *lun; 4923 4924 ctl_softc = control_softc; 4925 4926 lun = (struct ctl_lun *)be_lun->ctl_lun; 4927 4928 mtx_lock(&lun->lun_lock); 4929 lun->flags &= ~CTL_LUN_STOPPED; 4930 mtx_unlock(&lun->lun_lock); 4931 4932 return (0); 4933} 4934 4935int 4936ctl_stop_lun(struct ctl_be_lun *be_lun) 4937{ 4938 struct ctl_softc *ctl_softc; 4939 struct ctl_lun *lun; 4940 4941 ctl_softc = control_softc; 4942 4943 lun = (struct ctl_lun *)be_lun->ctl_lun; 4944 4945 mtx_lock(&lun->lun_lock); 4946 lun->flags |= CTL_LUN_STOPPED; 4947 mtx_unlock(&lun->lun_lock); 4948 4949 return (0); 4950} 4951 4952int 4953ctl_lun_offline(struct ctl_be_lun *be_lun) 4954{ 4955 struct ctl_softc *ctl_softc; 4956 struct ctl_lun *lun; 4957 4958 ctl_softc = control_softc; 4959 4960 lun = (struct ctl_lun *)be_lun->ctl_lun; 4961 4962 mtx_lock(&lun->lun_lock); 4963 lun->flags |= CTL_LUN_OFFLINE; 4964 mtx_unlock(&lun->lun_lock); 4965 4966 return (0); 4967} 4968 4969int 4970ctl_lun_online(struct ctl_be_lun *be_lun) 4971{ 4972 struct ctl_softc *ctl_softc; 4973 struct ctl_lun *lun; 4974 4975 ctl_softc = control_softc; 4976 4977 lun = (struct ctl_lun *)be_lun->ctl_lun; 4978 4979 mtx_lock(&lun->lun_lock); 4980 lun->flags &= ~CTL_LUN_OFFLINE; 4981 mtx_unlock(&lun->lun_lock); 4982 4983 return (0); 4984} 4985 4986int 4987ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4988{ 4989 struct ctl_softc *ctl_softc; 4990 struct ctl_lun *lun; 4991 4992 ctl_softc = control_softc; 4993 4994 lun = (struct ctl_lun *)be_lun->ctl_lun; 4995 4996 mtx_lock(&lun->lun_lock); 4997 4998 /* 4999 * The LUN needs to be disabled before it can be marked invalid. 5000 */ 5001 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5002 mtx_unlock(&lun->lun_lock); 5003 return (-1); 5004 } 5005 /* 5006 * Mark the LUN invalid. 5007 */ 5008 lun->flags |= CTL_LUN_INVALID; 5009 5010 /* 5011 * If there is nothing in the OOA queue, go ahead and free the LUN. 5012 * If we have something in the OOA queue, we'll free it when the 5013 * last I/O completes. 5014 */ 5015 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5016 mtx_unlock(&lun->lun_lock); 5017 mtx_lock(&ctl_softc->ctl_lock); 5018 ctl_free_lun(lun); 5019 mtx_unlock(&ctl_softc->ctl_lock); 5020 } else 5021 mtx_unlock(&lun->lun_lock); 5022 5023 return (0); 5024} 5025 5026int 5027ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5028{ 5029 struct ctl_softc *ctl_softc; 5030 struct ctl_lun *lun; 5031 5032 ctl_softc = control_softc; 5033 lun = (struct ctl_lun *)be_lun->ctl_lun; 5034 5035 mtx_lock(&lun->lun_lock); 5036 lun->flags |= CTL_LUN_INOPERABLE; 5037 mtx_unlock(&lun->lun_lock); 5038 5039 return (0); 5040} 5041 5042int 5043ctl_lun_operable(struct ctl_be_lun *be_lun) 5044{ 5045 struct ctl_softc *ctl_softc; 5046 struct ctl_lun *lun; 5047 5048 ctl_softc = control_softc; 5049 lun = (struct ctl_lun *)be_lun->ctl_lun; 5050 5051 mtx_lock(&lun->lun_lock); 5052 lun->flags &= ~CTL_LUN_INOPERABLE; 5053 mtx_unlock(&lun->lun_lock); 5054 5055 return (0); 5056} 5057 5058int 5059ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5060 int lock) 5061{ 5062 struct ctl_softc *softc; 5063 struct ctl_lun *lun; 5064 struct copan_aps_subpage *current_sp; 5065 struct ctl_page_index *page_index; 5066 int i; 5067 5068 softc = control_softc; 5069 5070 mtx_lock(&softc->ctl_lock); 5071 5072 lun = (struct ctl_lun *)be_lun->ctl_lun; 5073 mtx_lock(&lun->lun_lock); 5074 5075 page_index = NULL; 5076 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5077 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5078 APS_PAGE_CODE) 5079 continue; 5080 5081 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5082 continue; 5083 page_index = &lun->mode_pages.index[i]; 5084 } 5085 5086 if (page_index == NULL) { 5087 mtx_unlock(&lun->lun_lock); 5088 mtx_unlock(&softc->ctl_lock); 5089 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5090 (uintmax_t)lun->lun); 5091 return (1); 5092 } 5093#if 0 5094 if ((softc->aps_locked_lun != 0) 5095 && (softc->aps_locked_lun != lun->lun)) { 5096 printf("%s: attempt to lock LUN %llu when %llu is already " 5097 "locked\n"); 5098 mtx_unlock(&lun->lun_lock); 5099 mtx_unlock(&softc->ctl_lock); 5100 return (1); 5101 } 5102#endif 5103 5104 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5105 (page_index->page_len * CTL_PAGE_CURRENT)); 5106 5107 if (lock != 0) { 5108 current_sp->lock_active = APS_LOCK_ACTIVE; 5109 softc->aps_locked_lun = lun->lun; 5110 } else { 5111 current_sp->lock_active = 0; 5112 softc->aps_locked_lun = 0; 5113 } 5114 5115 5116 /* 5117 * If we're in HA mode, try to send the lock message to the other 5118 * side. 5119 */ 5120 if (ctl_is_single == 0) { 5121 int isc_retval; 5122 union ctl_ha_msg lock_msg; 5123 5124 lock_msg.hdr.nexus = *nexus; 5125 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5126 if (lock != 0) 5127 lock_msg.aps.lock_flag = 1; 5128 else 5129 lock_msg.aps.lock_flag = 0; 5130 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5131 sizeof(lock_msg), 0); 5132 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5133 printf("%s: APS (lock=%d) error returned from " 5134 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5135 mtx_unlock(&lun->lun_lock); 5136 mtx_unlock(&softc->ctl_lock); 5137 return (1); 5138 } 5139 } 5140 5141 mtx_unlock(&lun->lun_lock); 5142 mtx_unlock(&softc->ctl_lock); 5143 5144 return (0); 5145} 5146 5147void 5148ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5149{ 5150 struct ctl_lun *lun; 5151 struct ctl_softc *softc; 5152 int i; 5153 5154 softc = control_softc; 5155 5156 lun = (struct ctl_lun *)be_lun->ctl_lun; 5157 5158 mtx_lock(&lun->lun_lock); 5159 5160 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5161 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5162 5163 mtx_unlock(&lun->lun_lock); 5164} 5165 5166/* 5167 * Backend "memory move is complete" callback for requests that never 5168 * make it down to say RAIDCore's configuration code. 5169 */ 5170int 5171ctl_config_move_done(union ctl_io *io) 5172{ 5173 int retval; 5174 5175 retval = CTL_RETVAL_COMPLETE; 5176 5177 5178 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5179 /* 5180 * XXX KDM this shouldn't happen, but what if it does? 5181 */ 5182 if (io->io_hdr.io_type != CTL_IO_SCSI) 5183 panic("I/O type isn't CTL_IO_SCSI!"); 5184 5185 if ((io->io_hdr.port_status == 0) 5186 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5187 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5188 io->io_hdr.status = CTL_SUCCESS; 5189 else if ((io->io_hdr.port_status != 0) 5190 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5191 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5192 /* 5193 * For hardware error sense keys, the sense key 5194 * specific value is defined to be a retry count, 5195 * but we use it to pass back an internal FETD 5196 * error code. XXX KDM Hopefully the FETD is only 5197 * using 16 bits for an error code, since that's 5198 * all the space we have in the sks field. 5199 */ 5200 ctl_set_internal_failure(&io->scsiio, 5201 /*sks_valid*/ 1, 5202 /*retry_count*/ 5203 io->io_hdr.port_status); 5204 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5205 free(io->scsiio.kern_data_ptr, M_CTL); 5206 ctl_done(io); 5207 goto bailout; 5208 } 5209 5210 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5211 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5212 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5213 /* 5214 * XXX KDM just assuming a single pointer here, and not a 5215 * S/G list. If we start using S/G lists for config data, 5216 * we'll need to know how to clean them up here as well. 5217 */ 5218 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5219 free(io->scsiio.kern_data_ptr, M_CTL); 5220 /* Hopefully the user has already set the status... */ 5221 ctl_done(io); 5222 } else { 5223 /* 5224 * XXX KDM now we need to continue data movement. Some 5225 * options: 5226 * - call ctl_scsiio() again? We don't do this for data 5227 * writes, because for those at least we know ahead of 5228 * time where the write will go and how long it is. For 5229 * config writes, though, that information is largely 5230 * contained within the write itself, thus we need to 5231 * parse out the data again. 5232 * 5233 * - Call some other function once the data is in? 5234 */ 5235 5236 /* 5237 * XXX KDM call ctl_scsiio() again for now, and check flag 5238 * bits to see whether we're allocated or not. 5239 */ 5240 retval = ctl_scsiio(&io->scsiio); 5241 } 5242bailout: 5243 return (retval); 5244} 5245 5246/* 5247 * This gets called by a backend driver when it is done with a 5248 * data_submit method. 5249 */ 5250void 5251ctl_data_submit_done(union ctl_io *io) 5252{ 5253 /* 5254 * If the IO_CONT flag is set, we need to call the supplied 5255 * function to continue processing the I/O, instead of completing 5256 * the I/O just yet. 5257 * 5258 * If there is an error, though, we don't want to keep processing. 5259 * Instead, just send status back to the initiator. 5260 */ 5261 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5262 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5263 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5264 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5265 io->scsiio.io_cont(io); 5266 return; 5267 } 5268 ctl_done(io); 5269} 5270 5271/* 5272 * This gets called by a backend driver when it is done with a 5273 * configuration write. 5274 */ 5275void 5276ctl_config_write_done(union ctl_io *io) 5277{ 5278 uint8_t *buf; 5279 5280 /* 5281 * If the IO_CONT flag is set, we need to call the supplied 5282 * function to continue processing the I/O, instead of completing 5283 * the I/O just yet. 5284 * 5285 * If there is an error, though, we don't want to keep processing. 5286 * Instead, just send status back to the initiator. 5287 */ 5288 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5289 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5290 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5291 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5292 io->scsiio.io_cont(io); 5293 return; 5294 } 5295 /* 5296 * Since a configuration write can be done for commands that actually 5297 * have data allocated, like write buffer, and commands that have 5298 * no data, like start/stop unit, we need to check here. 5299 */ 5300 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5301 buf = io->scsiio.kern_data_ptr; 5302 else 5303 buf = NULL; 5304 ctl_done(io); 5305 if (buf) 5306 free(buf, M_CTL); 5307} 5308 5309/* 5310 * SCSI release command. 5311 */ 5312int 5313ctl_scsi_release(struct ctl_scsiio *ctsio) 5314{ 5315 int length, longid, thirdparty_id, resv_id; 5316 struct ctl_softc *ctl_softc; 5317 struct ctl_lun *lun; 5318 uint32_t residx; 5319 5320 length = 0; 5321 resv_id = 0; 5322 5323 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5324 5325 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5326 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5327 ctl_softc = control_softc; 5328 5329 switch (ctsio->cdb[0]) { 5330 case RELEASE_10: { 5331 struct scsi_release_10 *cdb; 5332 5333 cdb = (struct scsi_release_10 *)ctsio->cdb; 5334 5335 if (cdb->byte2 & SR10_LONGID) 5336 longid = 1; 5337 else 5338 thirdparty_id = cdb->thirdparty_id; 5339 5340 resv_id = cdb->resv_id; 5341 length = scsi_2btoul(cdb->length); 5342 break; 5343 } 5344 } 5345 5346 5347 /* 5348 * XXX KDM right now, we only support LUN reservation. We don't 5349 * support 3rd party reservations, or extent reservations, which 5350 * might actually need the parameter list. If we've gotten this 5351 * far, we've got a LUN reservation. Anything else got kicked out 5352 * above. So, according to SPC, ignore the length. 5353 */ 5354 length = 0; 5355 5356 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5357 && (length > 0)) { 5358 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5359 ctsio->kern_data_len = length; 5360 ctsio->kern_total_len = length; 5361 ctsio->kern_data_resid = 0; 5362 ctsio->kern_rel_offset = 0; 5363 ctsio->kern_sg_entries = 0; 5364 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5365 ctsio->be_move_done = ctl_config_move_done; 5366 ctl_datamove((union ctl_io *)ctsio); 5367 5368 return (CTL_RETVAL_COMPLETE); 5369 } 5370 5371 if (length > 0) 5372 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5373 5374 mtx_lock(&lun->lun_lock); 5375 5376 /* 5377 * According to SPC, it is not an error for an intiator to attempt 5378 * to release a reservation on a LUN that isn't reserved, or that 5379 * is reserved by another initiator. The reservation can only be 5380 * released, though, by the initiator who made it or by one of 5381 * several reset type events. 5382 */ 5383 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5384 lun->flags &= ~CTL_LUN_RESERVED; 5385 5386 mtx_unlock(&lun->lun_lock); 5387 5388 ctsio->scsi_status = SCSI_STATUS_OK; 5389 ctsio->io_hdr.status = CTL_SUCCESS; 5390 5391 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5392 free(ctsio->kern_data_ptr, M_CTL); 5393 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5394 } 5395 5396 ctl_done((union ctl_io *)ctsio); 5397 return (CTL_RETVAL_COMPLETE); 5398} 5399 5400int 5401ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5402{ 5403 int extent, thirdparty, longid; 5404 int resv_id, length; 5405 uint64_t thirdparty_id; 5406 struct ctl_softc *ctl_softc; 5407 struct ctl_lun *lun; 5408 uint32_t residx; 5409 5410 extent = 0; 5411 thirdparty = 0; 5412 longid = 0; 5413 resv_id = 0; 5414 length = 0; 5415 thirdparty_id = 0; 5416 5417 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5418 5419 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5420 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5421 ctl_softc = control_softc; 5422 5423 switch (ctsio->cdb[0]) { 5424 case RESERVE_10: { 5425 struct scsi_reserve_10 *cdb; 5426 5427 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5428 5429 if (cdb->byte2 & SR10_LONGID) 5430 longid = 1; 5431 else 5432 thirdparty_id = cdb->thirdparty_id; 5433 5434 resv_id = cdb->resv_id; 5435 length = scsi_2btoul(cdb->length); 5436 break; 5437 } 5438 } 5439 5440 /* 5441 * XXX KDM right now, we only support LUN reservation. We don't 5442 * support 3rd party reservations, or extent reservations, which 5443 * might actually need the parameter list. If we've gotten this 5444 * far, we've got a LUN reservation. Anything else got kicked out 5445 * above. So, according to SPC, ignore the length. 5446 */ 5447 length = 0; 5448 5449 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5450 && (length > 0)) { 5451 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5452 ctsio->kern_data_len = length; 5453 ctsio->kern_total_len = length; 5454 ctsio->kern_data_resid = 0; 5455 ctsio->kern_rel_offset = 0; 5456 ctsio->kern_sg_entries = 0; 5457 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5458 ctsio->be_move_done = ctl_config_move_done; 5459 ctl_datamove((union ctl_io *)ctsio); 5460 5461 return (CTL_RETVAL_COMPLETE); 5462 } 5463 5464 if (length > 0) 5465 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5466 5467 mtx_lock(&lun->lun_lock); 5468 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5469 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5470 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5471 goto bailout; 5472 } 5473 5474 lun->flags |= CTL_LUN_RESERVED; 5475 lun->res_idx = residx; 5476 5477 ctsio->scsi_status = SCSI_STATUS_OK; 5478 ctsio->io_hdr.status = CTL_SUCCESS; 5479 5480bailout: 5481 mtx_unlock(&lun->lun_lock); 5482 5483 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5484 free(ctsio->kern_data_ptr, M_CTL); 5485 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5486 } 5487 5488 ctl_done((union ctl_io *)ctsio); 5489 return (CTL_RETVAL_COMPLETE); 5490} 5491 5492int 5493ctl_start_stop(struct ctl_scsiio *ctsio) 5494{ 5495 struct scsi_start_stop_unit *cdb; 5496 struct ctl_lun *lun; 5497 struct ctl_softc *ctl_softc; 5498 int retval; 5499 5500 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5501 5502 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5503 ctl_softc = control_softc; 5504 retval = 0; 5505 5506 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5507 5508 /* 5509 * XXX KDM 5510 * We don't support the immediate bit on a stop unit. In order to 5511 * do that, we would need to code up a way to know that a stop is 5512 * pending, and hold off any new commands until it completes, one 5513 * way or another. Then we could accept or reject those commands 5514 * depending on its status. We would almost need to do the reverse 5515 * of what we do below for an immediate start -- return the copy of 5516 * the ctl_io to the FETD with status to send to the host (and to 5517 * free the copy!) and then free the original I/O once the stop 5518 * actually completes. That way, the OOA queue mechanism can work 5519 * to block commands that shouldn't proceed. Another alternative 5520 * would be to put the copy in the queue in place of the original, 5521 * and return the original back to the caller. That could be 5522 * slightly safer.. 5523 */ 5524 if ((cdb->byte2 & SSS_IMMED) 5525 && ((cdb->how & SSS_START) == 0)) { 5526 ctl_set_invalid_field(ctsio, 5527 /*sks_valid*/ 1, 5528 /*command*/ 1, 5529 /*field*/ 1, 5530 /*bit_valid*/ 1, 5531 /*bit*/ 0); 5532 ctl_done((union ctl_io *)ctsio); 5533 return (CTL_RETVAL_COMPLETE); 5534 } 5535 5536 if ((lun->flags & CTL_LUN_PR_RESERVED) 5537 && ((cdb->how & SSS_START)==0)) { 5538 uint32_t residx; 5539 5540 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5541 if (lun->pr_keys[residx] == 0 5542 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5543 5544 ctl_set_reservation_conflict(ctsio); 5545 ctl_done((union ctl_io *)ctsio); 5546 return (CTL_RETVAL_COMPLETE); 5547 } 5548 } 5549 5550 /* 5551 * If there is no backend on this device, we can't start or stop 5552 * it. In theory we shouldn't get any start/stop commands in the 5553 * first place at this level if the LUN doesn't have a backend. 5554 * That should get stopped by the command decode code. 5555 */ 5556 if (lun->backend == NULL) { 5557 ctl_set_invalid_opcode(ctsio); 5558 ctl_done((union ctl_io *)ctsio); 5559 return (CTL_RETVAL_COMPLETE); 5560 } 5561 5562 /* 5563 * XXX KDM Copan-specific offline behavior. 5564 * Figure out a reasonable way to port this? 5565 */ 5566#ifdef NEEDTOPORT 5567 mtx_lock(&lun->lun_lock); 5568 5569 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5570 && (lun->flags & CTL_LUN_OFFLINE)) { 5571 /* 5572 * If the LUN is offline, and the on/offline bit isn't set, 5573 * reject the start or stop. Otherwise, let it through. 5574 */ 5575 mtx_unlock(&lun->lun_lock); 5576 ctl_set_lun_not_ready(ctsio); 5577 ctl_done((union ctl_io *)ctsio); 5578 } else { 5579 mtx_unlock(&lun->lun_lock); 5580#endif /* NEEDTOPORT */ 5581 /* 5582 * This could be a start or a stop when we're online, 5583 * or a stop/offline or start/online. A start or stop when 5584 * we're offline is covered in the case above. 5585 */ 5586 /* 5587 * In the non-immediate case, we send the request to 5588 * the backend and return status to the user when 5589 * it is done. 5590 * 5591 * In the immediate case, we allocate a new ctl_io 5592 * to hold a copy of the request, and send that to 5593 * the backend. We then set good status on the 5594 * user's request and return it immediately. 5595 */ 5596 if (cdb->byte2 & SSS_IMMED) { 5597 union ctl_io *new_io; 5598 5599 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5600 if (new_io == NULL) { 5601 ctl_set_busy(ctsio); 5602 ctl_done((union ctl_io *)ctsio); 5603 } else { 5604 ctl_copy_io((union ctl_io *)ctsio, 5605 new_io); 5606 retval = lun->backend->config_write(new_io); 5607 ctl_set_success(ctsio); 5608 ctl_done((union ctl_io *)ctsio); 5609 } 5610 } else { 5611 retval = lun->backend->config_write( 5612 (union ctl_io *)ctsio); 5613 } 5614#ifdef NEEDTOPORT 5615 } 5616#endif 5617 return (retval); 5618} 5619 5620/* 5621 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5622 * we don't really do anything with the LBA and length fields if the user 5623 * passes them in. Instead we'll just flush out the cache for the entire 5624 * LUN. 5625 */ 5626int 5627ctl_sync_cache(struct ctl_scsiio *ctsio) 5628{ 5629 struct ctl_lun *lun; 5630 struct ctl_softc *ctl_softc; 5631 uint64_t starting_lba; 5632 uint32_t block_count; 5633 int retval; 5634 5635 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5636 5637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5638 ctl_softc = control_softc; 5639 retval = 0; 5640 5641 switch (ctsio->cdb[0]) { 5642 case SYNCHRONIZE_CACHE: { 5643 struct scsi_sync_cache *cdb; 5644 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5645 5646 starting_lba = scsi_4btoul(cdb->begin_lba); 5647 block_count = scsi_2btoul(cdb->lb_count); 5648 break; 5649 } 5650 case SYNCHRONIZE_CACHE_16: { 5651 struct scsi_sync_cache_16 *cdb; 5652 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5653 5654 starting_lba = scsi_8btou64(cdb->begin_lba); 5655 block_count = scsi_4btoul(cdb->lb_count); 5656 break; 5657 } 5658 default: 5659 ctl_set_invalid_opcode(ctsio); 5660 ctl_done((union ctl_io *)ctsio); 5661 goto bailout; 5662 break; /* NOTREACHED */ 5663 } 5664 5665 /* 5666 * We check the LBA and length, but don't do anything with them. 5667 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5668 * get flushed. This check will just help satisfy anyone who wants 5669 * to see an error for an out of range LBA. 5670 */ 5671 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5672 ctl_set_lba_out_of_range(ctsio); 5673 ctl_done((union ctl_io *)ctsio); 5674 goto bailout; 5675 } 5676 5677 /* 5678 * If this LUN has no backend, we can't flush the cache anyway. 5679 */ 5680 if (lun->backend == NULL) { 5681 ctl_set_invalid_opcode(ctsio); 5682 ctl_done((union ctl_io *)ctsio); 5683 goto bailout; 5684 } 5685 5686 /* 5687 * Check to see whether we're configured to send the SYNCHRONIZE 5688 * CACHE command directly to the back end. 5689 */ 5690 mtx_lock(&lun->lun_lock); 5691 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5692 && (++(lun->sync_count) >= lun->sync_interval)) { 5693 lun->sync_count = 0; 5694 mtx_unlock(&lun->lun_lock); 5695 retval = lun->backend->config_write((union ctl_io *)ctsio); 5696 } else { 5697 mtx_unlock(&lun->lun_lock); 5698 ctl_set_success(ctsio); 5699 ctl_done((union ctl_io *)ctsio); 5700 } 5701 5702bailout: 5703 5704 return (retval); 5705} 5706 5707int 5708ctl_format(struct ctl_scsiio *ctsio) 5709{ 5710 struct scsi_format *cdb; 5711 struct ctl_lun *lun; 5712 struct ctl_softc *ctl_softc; 5713 int length, defect_list_len; 5714 5715 CTL_DEBUG_PRINT(("ctl_format\n")); 5716 5717 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5718 ctl_softc = control_softc; 5719 5720 cdb = (struct scsi_format *)ctsio->cdb; 5721 5722 length = 0; 5723 if (cdb->byte2 & SF_FMTDATA) { 5724 if (cdb->byte2 & SF_LONGLIST) 5725 length = sizeof(struct scsi_format_header_long); 5726 else 5727 length = sizeof(struct scsi_format_header_short); 5728 } 5729 5730 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5731 && (length > 0)) { 5732 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5733 ctsio->kern_data_len = length; 5734 ctsio->kern_total_len = length; 5735 ctsio->kern_data_resid = 0; 5736 ctsio->kern_rel_offset = 0; 5737 ctsio->kern_sg_entries = 0; 5738 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5739 ctsio->be_move_done = ctl_config_move_done; 5740 ctl_datamove((union ctl_io *)ctsio); 5741 5742 return (CTL_RETVAL_COMPLETE); 5743 } 5744 5745 defect_list_len = 0; 5746 5747 if (cdb->byte2 & SF_FMTDATA) { 5748 if (cdb->byte2 & SF_LONGLIST) { 5749 struct scsi_format_header_long *header; 5750 5751 header = (struct scsi_format_header_long *) 5752 ctsio->kern_data_ptr; 5753 5754 defect_list_len = scsi_4btoul(header->defect_list_len); 5755 if (defect_list_len != 0) { 5756 ctl_set_invalid_field(ctsio, 5757 /*sks_valid*/ 1, 5758 /*command*/ 0, 5759 /*field*/ 2, 5760 /*bit_valid*/ 0, 5761 /*bit*/ 0); 5762 goto bailout; 5763 } 5764 } else { 5765 struct scsi_format_header_short *header; 5766 5767 header = (struct scsi_format_header_short *) 5768 ctsio->kern_data_ptr; 5769 5770 defect_list_len = scsi_2btoul(header->defect_list_len); 5771 if (defect_list_len != 0) { 5772 ctl_set_invalid_field(ctsio, 5773 /*sks_valid*/ 1, 5774 /*command*/ 0, 5775 /*field*/ 2, 5776 /*bit_valid*/ 0, 5777 /*bit*/ 0); 5778 goto bailout; 5779 } 5780 } 5781 } 5782 5783 /* 5784 * The format command will clear out the "Medium format corrupted" 5785 * status if set by the configuration code. That status is really 5786 * just a way to notify the host that we have lost the media, and 5787 * get them to issue a command that will basically make them think 5788 * they're blowing away the media. 5789 */ 5790 mtx_lock(&lun->lun_lock); 5791 lun->flags &= ~CTL_LUN_INOPERABLE; 5792 mtx_unlock(&lun->lun_lock); 5793 5794 ctsio->scsi_status = SCSI_STATUS_OK; 5795 ctsio->io_hdr.status = CTL_SUCCESS; 5796bailout: 5797 5798 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5799 free(ctsio->kern_data_ptr, M_CTL); 5800 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5801 } 5802 5803 ctl_done((union ctl_io *)ctsio); 5804 return (CTL_RETVAL_COMPLETE); 5805} 5806 5807int 5808ctl_read_buffer(struct ctl_scsiio *ctsio) 5809{ 5810 struct scsi_read_buffer *cdb; 5811 struct ctl_lun *lun; 5812 int buffer_offset, len; 5813 static uint8_t descr[4]; 5814 static uint8_t echo_descr[4] = { 0 }; 5815 5816 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5817 5818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5819 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5820 5821 if (lun->flags & CTL_LUN_PR_RESERVED) { 5822 uint32_t residx; 5823 5824 /* 5825 * XXX KDM need a lock here. 5826 */ 5827 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5828 if ((lun->res_type == SPR_TYPE_EX_AC 5829 && residx != lun->pr_res_idx) 5830 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5831 || lun->res_type == SPR_TYPE_EX_AC_AR) 5832 && lun->pr_keys[residx] == 0)) { 5833 ctl_set_reservation_conflict(ctsio); 5834 ctl_done((union ctl_io *)ctsio); 5835 return (CTL_RETVAL_COMPLETE); 5836 } 5837 } 5838 5839 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5840 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5841 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5842 ctl_set_invalid_field(ctsio, 5843 /*sks_valid*/ 1, 5844 /*command*/ 1, 5845 /*field*/ 1, 5846 /*bit_valid*/ 1, 5847 /*bit*/ 4); 5848 ctl_done((union ctl_io *)ctsio); 5849 return (CTL_RETVAL_COMPLETE); 5850 } 5851 5852 len = scsi_3btoul(cdb->length); 5853 buffer_offset = scsi_3btoul(cdb->offset); 5854 5855 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5856 ctl_set_invalid_field(ctsio, 5857 /*sks_valid*/ 1, 5858 /*command*/ 1, 5859 /*field*/ 6, 5860 /*bit_valid*/ 0, 5861 /*bit*/ 0); 5862 ctl_done((union ctl_io *)ctsio); 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5867 descr[0] = 0; 5868 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5869 ctsio->kern_data_ptr = descr; 5870 len = min(len, sizeof(descr)); 5871 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5872 ctsio->kern_data_ptr = echo_descr; 5873 len = min(len, sizeof(echo_descr)); 5874 } else 5875 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5876 ctsio->kern_data_len = len; 5877 ctsio->kern_total_len = len; 5878 ctsio->kern_data_resid = 0; 5879 ctsio->kern_rel_offset = 0; 5880 ctsio->kern_sg_entries = 0; 5881 ctsio->be_move_done = ctl_config_move_done; 5882 ctl_datamove((union ctl_io *)ctsio); 5883 5884 return (CTL_RETVAL_COMPLETE); 5885} 5886 5887int 5888ctl_write_buffer(struct ctl_scsiio *ctsio) 5889{ 5890 struct scsi_write_buffer *cdb; 5891 struct ctl_lun *lun; 5892 int buffer_offset, len; 5893 5894 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5895 5896 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5897 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5898 5899 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5900 ctl_set_invalid_field(ctsio, 5901 /*sks_valid*/ 1, 5902 /*command*/ 1, 5903 /*field*/ 1, 5904 /*bit_valid*/ 1, 5905 /*bit*/ 4); 5906 ctl_done((union ctl_io *)ctsio); 5907 return (CTL_RETVAL_COMPLETE); 5908 } 5909 5910 len = scsi_3btoul(cdb->length); 5911 buffer_offset = scsi_3btoul(cdb->offset); 5912 5913 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5914 ctl_set_invalid_field(ctsio, 5915 /*sks_valid*/ 1, 5916 /*command*/ 1, 5917 /*field*/ 6, 5918 /*bit_valid*/ 0, 5919 /*bit*/ 0); 5920 ctl_done((union ctl_io *)ctsio); 5921 return (CTL_RETVAL_COMPLETE); 5922 } 5923 5924 /* 5925 * If we've got a kernel request that hasn't been malloced yet, 5926 * malloc it and tell the caller the data buffer is here. 5927 */ 5928 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5929 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5930 ctsio->kern_data_len = len; 5931 ctsio->kern_total_len = len; 5932 ctsio->kern_data_resid = 0; 5933 ctsio->kern_rel_offset = 0; 5934 ctsio->kern_sg_entries = 0; 5935 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5936 ctsio->be_move_done = ctl_config_move_done; 5937 ctl_datamove((union ctl_io *)ctsio); 5938 5939 return (CTL_RETVAL_COMPLETE); 5940 } 5941 5942 ctl_done((union ctl_io *)ctsio); 5943 5944 return (CTL_RETVAL_COMPLETE); 5945} 5946 5947int 5948ctl_write_same(struct ctl_scsiio *ctsio) 5949{ 5950 struct ctl_lun *lun; 5951 struct ctl_lba_len_flags *lbalen; 5952 uint64_t lba; 5953 uint32_t num_blocks; 5954 int len, retval; 5955 uint8_t byte2; 5956 5957 retval = CTL_RETVAL_COMPLETE; 5958 5959 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5960 5961 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5962 5963 switch (ctsio->cdb[0]) { 5964 case WRITE_SAME_10: { 5965 struct scsi_write_same_10 *cdb; 5966 5967 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5968 5969 lba = scsi_4btoul(cdb->addr); 5970 num_blocks = scsi_2btoul(cdb->length); 5971 byte2 = cdb->byte2; 5972 break; 5973 } 5974 case WRITE_SAME_16: { 5975 struct scsi_write_same_16 *cdb; 5976 5977 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5978 5979 lba = scsi_8btou64(cdb->addr); 5980 num_blocks = scsi_4btoul(cdb->length); 5981 byte2 = cdb->byte2; 5982 break; 5983 } 5984 default: 5985 /* 5986 * We got a command we don't support. This shouldn't 5987 * happen, commands should be filtered out above us. 5988 */ 5989 ctl_set_invalid_opcode(ctsio); 5990 ctl_done((union ctl_io *)ctsio); 5991 5992 return (CTL_RETVAL_COMPLETE); 5993 break; /* NOTREACHED */ 5994 } 5995 5996 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5997 if ((byte2 & SWS_UNMAP) == 0 && 5998 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5999 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6000 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6001 ctl_done((union ctl_io *)ctsio); 6002 return (CTL_RETVAL_COMPLETE); 6003 } 6004 6005 /* 6006 * The first check is to make sure we're in bounds, the second 6007 * check is to catch wrap-around problems. If the lba + num blocks 6008 * is less than the lba, then we've wrapped around and the block 6009 * range is invalid anyway. 6010 */ 6011 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6012 || ((lba + num_blocks) < lba)) { 6013 ctl_set_lba_out_of_range(ctsio); 6014 ctl_done((union ctl_io *)ctsio); 6015 return (CTL_RETVAL_COMPLETE); 6016 } 6017 6018 /* Zero number of blocks means "to the last logical block" */ 6019 if (num_blocks == 0) { 6020 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6021 ctl_set_invalid_field(ctsio, 6022 /*sks_valid*/ 0, 6023 /*command*/ 1, 6024 /*field*/ 0, 6025 /*bit_valid*/ 0, 6026 /*bit*/ 0); 6027 ctl_done((union ctl_io *)ctsio); 6028 return (CTL_RETVAL_COMPLETE); 6029 } 6030 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6031 } 6032 6033 len = lun->be_lun->blocksize; 6034 6035 /* 6036 * If we've got a kernel request that hasn't been malloced yet, 6037 * malloc it and tell the caller the data buffer is here. 6038 */ 6039 if ((byte2 & SWS_NDOB) == 0 && 6040 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6041 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6042 ctsio->kern_data_len = len; 6043 ctsio->kern_total_len = len; 6044 ctsio->kern_data_resid = 0; 6045 ctsio->kern_rel_offset = 0; 6046 ctsio->kern_sg_entries = 0; 6047 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6048 ctsio->be_move_done = ctl_config_move_done; 6049 ctl_datamove((union ctl_io *)ctsio); 6050 6051 return (CTL_RETVAL_COMPLETE); 6052 } 6053 6054 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6055 lbalen->lba = lba; 6056 lbalen->len = num_blocks; 6057 lbalen->flags = byte2; 6058 retval = lun->backend->config_write((union ctl_io *)ctsio); 6059 6060 return (retval); 6061} 6062 6063int 6064ctl_unmap(struct ctl_scsiio *ctsio) 6065{ 6066 struct ctl_lun *lun; 6067 struct scsi_unmap *cdb; 6068 struct ctl_ptr_len_flags *ptrlen; 6069 struct scsi_unmap_header *hdr; 6070 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6071 uint64_t lba; 6072 uint32_t num_blocks; 6073 int len, retval; 6074 uint8_t byte2; 6075 6076 retval = CTL_RETVAL_COMPLETE; 6077 6078 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6079 6080 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6081 cdb = (struct scsi_unmap *)ctsio->cdb; 6082 6083 len = scsi_2btoul(cdb->length); 6084 byte2 = cdb->byte2; 6085 6086 /* 6087 * If we've got a kernel request that hasn't been malloced yet, 6088 * malloc it and tell the caller the data buffer is here. 6089 */ 6090 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6091 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6092 ctsio->kern_data_len = len; 6093 ctsio->kern_total_len = len; 6094 ctsio->kern_data_resid = 0; 6095 ctsio->kern_rel_offset = 0; 6096 ctsio->kern_sg_entries = 0; 6097 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6098 ctsio->be_move_done = ctl_config_move_done; 6099 ctl_datamove((union ctl_io *)ctsio); 6100 6101 return (CTL_RETVAL_COMPLETE); 6102 } 6103 6104 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6105 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6106 if (len < sizeof (*hdr) || 6107 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6108 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6109 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6110 ctl_set_invalid_field(ctsio, 6111 /*sks_valid*/ 0, 6112 /*command*/ 0, 6113 /*field*/ 0, 6114 /*bit_valid*/ 0, 6115 /*bit*/ 0); 6116 ctl_done((union ctl_io *)ctsio); 6117 return (CTL_RETVAL_COMPLETE); 6118 } 6119 len = scsi_2btoul(hdr->desc_length); 6120 buf = (struct scsi_unmap_desc *)(hdr + 1); 6121 end = buf + len / sizeof(*buf); 6122 6123 endnz = buf; 6124 for (range = buf; range < end; range++) { 6125 lba = scsi_8btou64(range->lba); 6126 num_blocks = scsi_4btoul(range->length); 6127 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6128 || ((lba + num_blocks) < lba)) { 6129 ctl_set_lba_out_of_range(ctsio); 6130 ctl_done((union ctl_io *)ctsio); 6131 return (CTL_RETVAL_COMPLETE); 6132 } 6133 if (num_blocks != 0) 6134 endnz = range + 1; 6135 } 6136 6137 /* 6138 * Block backend can not handle zero last range. 6139 * Filter it out and return if there is nothing left. 6140 */ 6141 len = (uint8_t *)endnz - (uint8_t *)buf; 6142 if (len == 0) { 6143 ctl_set_success(ctsio); 6144 ctl_done((union ctl_io *)ctsio); 6145 return (CTL_RETVAL_COMPLETE); 6146 } 6147 6148 mtx_lock(&lun->lun_lock); 6149 ptrlen = (struct ctl_ptr_len_flags *) 6150 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6151 ptrlen->ptr = (void *)buf; 6152 ptrlen->len = len; 6153 ptrlen->flags = byte2; 6154 ctl_check_blocked(lun); 6155 mtx_unlock(&lun->lun_lock); 6156 6157 retval = lun->backend->config_write((union ctl_io *)ctsio); 6158 return (retval); 6159} 6160 6161/* 6162 * Note that this function currently doesn't actually do anything inside 6163 * CTL to enforce things if the DQue bit is turned on. 6164 * 6165 * Also note that this function can't be used in the default case, because 6166 * the DQue bit isn't set in the changeable mask for the control mode page 6167 * anyway. This is just here as an example for how to implement a page 6168 * handler, and a placeholder in case we want to allow the user to turn 6169 * tagged queueing on and off. 6170 * 6171 * The D_SENSE bit handling is functional, however, and will turn 6172 * descriptor sense on and off for a given LUN. 6173 */ 6174int 6175ctl_control_page_handler(struct ctl_scsiio *ctsio, 6176 struct ctl_page_index *page_index, uint8_t *page_ptr) 6177{ 6178 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6179 struct ctl_lun *lun; 6180 struct ctl_softc *softc; 6181 int set_ua; 6182 uint32_t initidx; 6183 6184 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6185 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6186 set_ua = 0; 6187 6188 user_cp = (struct scsi_control_page *)page_ptr; 6189 current_cp = (struct scsi_control_page *) 6190 (page_index->page_data + (page_index->page_len * 6191 CTL_PAGE_CURRENT)); 6192 saved_cp = (struct scsi_control_page *) 6193 (page_index->page_data + (page_index->page_len * 6194 CTL_PAGE_SAVED)); 6195 6196 softc = control_softc; 6197 6198 mtx_lock(&lun->lun_lock); 6199 if (((current_cp->rlec & SCP_DSENSE) == 0) 6200 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6201 /* 6202 * Descriptor sense is currently turned off and the user 6203 * wants to turn it on. 6204 */ 6205 current_cp->rlec |= SCP_DSENSE; 6206 saved_cp->rlec |= SCP_DSENSE; 6207 lun->flags |= CTL_LUN_SENSE_DESC; 6208 set_ua = 1; 6209 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6210 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6211 /* 6212 * Descriptor sense is currently turned on, and the user 6213 * wants to turn it off. 6214 */ 6215 current_cp->rlec &= ~SCP_DSENSE; 6216 saved_cp->rlec &= ~SCP_DSENSE; 6217 lun->flags &= ~CTL_LUN_SENSE_DESC; 6218 set_ua = 1; 6219 } 6220 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6221 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6222 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6223 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6224 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6225 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6226 set_ua = 1; 6227 } 6228 if ((current_cp->eca_and_aen & SCP_SWP) != 6229 (user_cp->eca_and_aen & SCP_SWP)) { 6230 current_cp->eca_and_aen &= ~SCP_SWP; 6231 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6232 saved_cp->eca_and_aen &= ~SCP_SWP; 6233 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6234 set_ua = 1; 6235 } 6236 if (set_ua != 0) { 6237 int i; 6238 /* 6239 * Let other initiators know that the mode 6240 * parameters for this LUN have changed. 6241 */ 6242 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6243 if (i == initidx) 6244 continue; 6245 6246 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6247 } 6248 } 6249 mtx_unlock(&lun->lun_lock); 6250 6251 return (0); 6252} 6253 6254int 6255ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6256 struct ctl_page_index *page_index, uint8_t *page_ptr) 6257{ 6258 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6259 struct ctl_lun *lun; 6260 int set_ua; 6261 uint32_t initidx; 6262 6263 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6264 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6265 set_ua = 0; 6266 6267 user_cp = (struct scsi_caching_page *)page_ptr; 6268 current_cp = (struct scsi_caching_page *) 6269 (page_index->page_data + (page_index->page_len * 6270 CTL_PAGE_CURRENT)); 6271 saved_cp = (struct scsi_caching_page *) 6272 (page_index->page_data + (page_index->page_len * 6273 CTL_PAGE_SAVED)); 6274 6275 mtx_lock(&lun->lun_lock); 6276 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6277 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6278 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6279 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6280 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6281 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6282 set_ua = 1; 6283 } 6284 if (set_ua != 0) { 6285 int i; 6286 /* 6287 * Let other initiators know that the mode 6288 * parameters for this LUN have changed. 6289 */ 6290 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6291 if (i == initidx) 6292 continue; 6293 6294 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6295 } 6296 } 6297 mtx_unlock(&lun->lun_lock); 6298 6299 return (0); 6300} 6301 6302int 6303ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6304 struct ctl_page_index *page_index, uint8_t *page_ptr) 6305{ 6306 return (0); 6307} 6308 6309int 6310ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6311 struct ctl_page_index *page_index, int pc) 6312{ 6313 struct copan_power_subpage *page; 6314 6315 page = (struct copan_power_subpage *)page_index->page_data + 6316 (page_index->page_len * pc); 6317 6318 switch (pc) { 6319 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6320 /* 6321 * We don't update the changable bits for this page. 6322 */ 6323 break; 6324 case SMS_PAGE_CTRL_CURRENT >> 6: 6325 case SMS_PAGE_CTRL_DEFAULT >> 6: 6326 case SMS_PAGE_CTRL_SAVED >> 6: 6327#ifdef NEEDTOPORT 6328 ctl_update_power_subpage(page); 6329#endif 6330 break; 6331 default: 6332#ifdef NEEDTOPORT 6333 EPRINT(0, "Invalid PC %d!!", pc); 6334#endif 6335 break; 6336 } 6337 return (0); 6338} 6339 6340 6341int 6342ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6343 struct ctl_page_index *page_index, uint8_t *page_ptr) 6344{ 6345 struct copan_aps_subpage *user_sp; 6346 struct copan_aps_subpage *current_sp; 6347 union ctl_modepage_info *modepage_info; 6348 struct ctl_softc *softc; 6349 struct ctl_lun *lun; 6350 int retval; 6351 6352 retval = CTL_RETVAL_COMPLETE; 6353 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6354 (page_index->page_len * CTL_PAGE_CURRENT)); 6355 softc = control_softc; 6356 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6357 6358 user_sp = (struct copan_aps_subpage *)page_ptr; 6359 6360 modepage_info = (union ctl_modepage_info *) 6361 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6362 6363 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6364 modepage_info->header.subpage = page_index->subpage; 6365 modepage_info->aps.lock_active = user_sp->lock_active; 6366 6367 mtx_lock(&softc->ctl_lock); 6368 6369 /* 6370 * If there is a request to lock the LUN and another LUN is locked 6371 * this is an error. If the requested LUN is already locked ignore 6372 * the request. If no LUN is locked attempt to lock it. 6373 * if there is a request to unlock the LUN and the LUN is currently 6374 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6375 * if another LUN is locked or no LUN is locked. 6376 */ 6377 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6378 if (softc->aps_locked_lun == lun->lun) { 6379 /* 6380 * This LUN is already locked, so we're done. 6381 */ 6382 retval = CTL_RETVAL_COMPLETE; 6383 } else if (softc->aps_locked_lun == 0) { 6384 /* 6385 * No one has the lock, pass the request to the 6386 * backend. 6387 */ 6388 retval = lun->backend->config_write( 6389 (union ctl_io *)ctsio); 6390 } else { 6391 /* 6392 * Someone else has the lock, throw out the request. 6393 */ 6394 ctl_set_already_locked(ctsio); 6395 free(ctsio->kern_data_ptr, M_CTL); 6396 ctl_done((union ctl_io *)ctsio); 6397 6398 /* 6399 * Set the return value so that ctl_do_mode_select() 6400 * won't try to complete the command. We already 6401 * completed it here. 6402 */ 6403 retval = CTL_RETVAL_ERROR; 6404 } 6405 } else if (softc->aps_locked_lun == lun->lun) { 6406 /* 6407 * This LUN is locked, so pass the unlock request to the 6408 * backend. 6409 */ 6410 retval = lun->backend->config_write((union ctl_io *)ctsio); 6411 } 6412 mtx_unlock(&softc->ctl_lock); 6413 6414 return (retval); 6415} 6416 6417int 6418ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6419 struct ctl_page_index *page_index, 6420 uint8_t *page_ptr) 6421{ 6422 uint8_t *c; 6423 int i; 6424 6425 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6426 ctl_time_io_secs = 6427 (c[0] << 8) | 6428 (c[1] << 0) | 6429 0; 6430 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6431 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6432 printf("page data:"); 6433 for (i=0; i<8; i++) 6434 printf(" %.2x",page_ptr[i]); 6435 printf("\n"); 6436 return (0); 6437} 6438 6439int 6440ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6441 struct ctl_page_index *page_index, 6442 int pc) 6443{ 6444 struct copan_debugconf_subpage *page; 6445 6446 page = (struct copan_debugconf_subpage *)page_index->page_data + 6447 (page_index->page_len * pc); 6448 6449 switch (pc) { 6450 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6451 case SMS_PAGE_CTRL_DEFAULT >> 6: 6452 case SMS_PAGE_CTRL_SAVED >> 6: 6453 /* 6454 * We don't update the changable or default bits for this page. 6455 */ 6456 break; 6457 case SMS_PAGE_CTRL_CURRENT >> 6: 6458 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6459 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6460 break; 6461 default: 6462#ifdef NEEDTOPORT 6463 EPRINT(0, "Invalid PC %d!!", pc); 6464#endif /* NEEDTOPORT */ 6465 break; 6466 } 6467 return (0); 6468} 6469 6470 6471static int 6472ctl_do_mode_select(union ctl_io *io) 6473{ 6474 struct scsi_mode_page_header *page_header; 6475 struct ctl_page_index *page_index; 6476 struct ctl_scsiio *ctsio; 6477 int control_dev, page_len; 6478 int page_len_offset, page_len_size; 6479 union ctl_modepage_info *modepage_info; 6480 struct ctl_lun *lun; 6481 int *len_left, *len_used; 6482 int retval, i; 6483 6484 ctsio = &io->scsiio; 6485 page_index = NULL; 6486 page_len = 0; 6487 retval = CTL_RETVAL_COMPLETE; 6488 6489 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6490 6491 if (lun->be_lun->lun_type != T_DIRECT) 6492 control_dev = 1; 6493 else 6494 control_dev = 0; 6495 6496 modepage_info = (union ctl_modepage_info *) 6497 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6498 len_left = &modepage_info->header.len_left; 6499 len_used = &modepage_info->header.len_used; 6500 6501do_next_page: 6502 6503 page_header = (struct scsi_mode_page_header *) 6504 (ctsio->kern_data_ptr + *len_used); 6505 6506 if (*len_left == 0) { 6507 free(ctsio->kern_data_ptr, M_CTL); 6508 ctl_set_success(ctsio); 6509 ctl_done((union ctl_io *)ctsio); 6510 return (CTL_RETVAL_COMPLETE); 6511 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6512 6513 free(ctsio->kern_data_ptr, M_CTL); 6514 ctl_set_param_len_error(ctsio); 6515 ctl_done((union ctl_io *)ctsio); 6516 return (CTL_RETVAL_COMPLETE); 6517 6518 } else if ((page_header->page_code & SMPH_SPF) 6519 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6520 6521 free(ctsio->kern_data_ptr, M_CTL); 6522 ctl_set_param_len_error(ctsio); 6523 ctl_done((union ctl_io *)ctsio); 6524 return (CTL_RETVAL_COMPLETE); 6525 } 6526 6527 6528 /* 6529 * XXX KDM should we do something with the block descriptor? 6530 */ 6531 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6532 6533 if ((control_dev != 0) 6534 && (lun->mode_pages.index[i].page_flags & 6535 CTL_PAGE_FLAG_DISK_ONLY)) 6536 continue; 6537 6538 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6539 (page_header->page_code & SMPH_PC_MASK)) 6540 continue; 6541 6542 /* 6543 * If neither page has a subpage code, then we've got a 6544 * match. 6545 */ 6546 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6547 && ((page_header->page_code & SMPH_SPF) == 0)) { 6548 page_index = &lun->mode_pages.index[i]; 6549 page_len = page_header->page_length; 6550 break; 6551 } 6552 6553 /* 6554 * If both pages have subpages, then the subpage numbers 6555 * have to match. 6556 */ 6557 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6558 && (page_header->page_code & SMPH_SPF)) { 6559 struct scsi_mode_page_header_sp *sph; 6560 6561 sph = (struct scsi_mode_page_header_sp *)page_header; 6562 6563 if (lun->mode_pages.index[i].subpage == 6564 sph->subpage) { 6565 page_index = &lun->mode_pages.index[i]; 6566 page_len = scsi_2btoul(sph->page_length); 6567 break; 6568 } 6569 } 6570 } 6571 6572 /* 6573 * If we couldn't find the page, or if we don't have a mode select 6574 * handler for it, send back an error to the user. 6575 */ 6576 if ((page_index == NULL) 6577 || (page_index->select_handler == NULL)) { 6578 ctl_set_invalid_field(ctsio, 6579 /*sks_valid*/ 1, 6580 /*command*/ 0, 6581 /*field*/ *len_used, 6582 /*bit_valid*/ 0, 6583 /*bit*/ 0); 6584 free(ctsio->kern_data_ptr, M_CTL); 6585 ctl_done((union ctl_io *)ctsio); 6586 return (CTL_RETVAL_COMPLETE); 6587 } 6588 6589 if (page_index->page_code & SMPH_SPF) { 6590 page_len_offset = 2; 6591 page_len_size = 2; 6592 } else { 6593 page_len_size = 1; 6594 page_len_offset = 1; 6595 } 6596 6597 /* 6598 * If the length the initiator gives us isn't the one we specify in 6599 * the mode page header, or if they didn't specify enough data in 6600 * the CDB to avoid truncating this page, kick out the request. 6601 */ 6602 if ((page_len != (page_index->page_len - page_len_offset - 6603 page_len_size)) 6604 || (*len_left < page_index->page_len)) { 6605 6606 6607 ctl_set_invalid_field(ctsio, 6608 /*sks_valid*/ 1, 6609 /*command*/ 0, 6610 /*field*/ *len_used + page_len_offset, 6611 /*bit_valid*/ 0, 6612 /*bit*/ 0); 6613 free(ctsio->kern_data_ptr, M_CTL); 6614 ctl_done((union ctl_io *)ctsio); 6615 return (CTL_RETVAL_COMPLETE); 6616 } 6617 6618 /* 6619 * Run through the mode page, checking to make sure that the bits 6620 * the user changed are actually legal for him to change. 6621 */ 6622 for (i = 0; i < page_index->page_len; i++) { 6623 uint8_t *user_byte, *change_mask, *current_byte; 6624 int bad_bit; 6625 int j; 6626 6627 user_byte = (uint8_t *)page_header + i; 6628 change_mask = page_index->page_data + 6629 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6630 current_byte = page_index->page_data + 6631 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6632 6633 /* 6634 * Check to see whether the user set any bits in this byte 6635 * that he is not allowed to set. 6636 */ 6637 if ((*user_byte & ~(*change_mask)) == 6638 (*current_byte & ~(*change_mask))) 6639 continue; 6640 6641 /* 6642 * Go through bit by bit to determine which one is illegal. 6643 */ 6644 bad_bit = 0; 6645 for (j = 7; j >= 0; j--) { 6646 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6647 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6648 bad_bit = i; 6649 break; 6650 } 6651 } 6652 ctl_set_invalid_field(ctsio, 6653 /*sks_valid*/ 1, 6654 /*command*/ 0, 6655 /*field*/ *len_used + i, 6656 /*bit_valid*/ 1, 6657 /*bit*/ bad_bit); 6658 free(ctsio->kern_data_ptr, M_CTL); 6659 ctl_done((union ctl_io *)ctsio); 6660 return (CTL_RETVAL_COMPLETE); 6661 } 6662 6663 /* 6664 * Decrement these before we call the page handler, since we may 6665 * end up getting called back one way or another before the handler 6666 * returns to this context. 6667 */ 6668 *len_left -= page_index->page_len; 6669 *len_used += page_index->page_len; 6670 6671 retval = page_index->select_handler(ctsio, page_index, 6672 (uint8_t *)page_header); 6673 6674 /* 6675 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6676 * wait until this queued command completes to finish processing 6677 * the mode page. If it returns anything other than 6678 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6679 * already set the sense information, freed the data pointer, and 6680 * completed the io for us. 6681 */ 6682 if (retval != CTL_RETVAL_COMPLETE) 6683 goto bailout_no_done; 6684 6685 /* 6686 * If the initiator sent us more than one page, parse the next one. 6687 */ 6688 if (*len_left > 0) 6689 goto do_next_page; 6690 6691 ctl_set_success(ctsio); 6692 free(ctsio->kern_data_ptr, M_CTL); 6693 ctl_done((union ctl_io *)ctsio); 6694 6695bailout_no_done: 6696 6697 return (CTL_RETVAL_COMPLETE); 6698 6699} 6700 6701int 6702ctl_mode_select(struct ctl_scsiio *ctsio) 6703{ 6704 int param_len, pf, sp; 6705 int header_size, bd_len; 6706 int len_left, len_used; 6707 struct ctl_page_index *page_index; 6708 struct ctl_lun *lun; 6709 int control_dev, page_len; 6710 union ctl_modepage_info *modepage_info; 6711 int retval; 6712 6713 pf = 0; 6714 sp = 0; 6715 page_len = 0; 6716 len_used = 0; 6717 len_left = 0; 6718 retval = 0; 6719 bd_len = 0; 6720 page_index = NULL; 6721 6722 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6723 6724 if (lun->be_lun->lun_type != T_DIRECT) 6725 control_dev = 1; 6726 else 6727 control_dev = 0; 6728 6729 switch (ctsio->cdb[0]) { 6730 case MODE_SELECT_6: { 6731 struct scsi_mode_select_6 *cdb; 6732 6733 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6734 6735 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6736 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6737 6738 param_len = cdb->length; 6739 header_size = sizeof(struct scsi_mode_header_6); 6740 break; 6741 } 6742 case MODE_SELECT_10: { 6743 struct scsi_mode_select_10 *cdb; 6744 6745 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6746 6747 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6748 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6749 6750 param_len = scsi_2btoul(cdb->length); 6751 header_size = sizeof(struct scsi_mode_header_10); 6752 break; 6753 } 6754 default: 6755 ctl_set_invalid_opcode(ctsio); 6756 ctl_done((union ctl_io *)ctsio); 6757 return (CTL_RETVAL_COMPLETE); 6758 break; /* NOTREACHED */ 6759 } 6760 6761 /* 6762 * From SPC-3: 6763 * "A parameter list length of zero indicates that the Data-Out Buffer 6764 * shall be empty. This condition shall not be considered as an error." 6765 */ 6766 if (param_len == 0) { 6767 ctl_set_success(ctsio); 6768 ctl_done((union ctl_io *)ctsio); 6769 return (CTL_RETVAL_COMPLETE); 6770 } 6771 6772 /* 6773 * Since we'll hit this the first time through, prior to 6774 * allocation, we don't need to free a data buffer here. 6775 */ 6776 if (param_len < header_size) { 6777 ctl_set_param_len_error(ctsio); 6778 ctl_done((union ctl_io *)ctsio); 6779 return (CTL_RETVAL_COMPLETE); 6780 } 6781 6782 /* 6783 * Allocate the data buffer and grab the user's data. In theory, 6784 * we shouldn't have to sanity check the parameter list length here 6785 * because the maximum size is 64K. We should be able to malloc 6786 * that much without too many problems. 6787 */ 6788 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6789 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6790 ctsio->kern_data_len = param_len; 6791 ctsio->kern_total_len = param_len; 6792 ctsio->kern_data_resid = 0; 6793 ctsio->kern_rel_offset = 0; 6794 ctsio->kern_sg_entries = 0; 6795 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6796 ctsio->be_move_done = ctl_config_move_done; 6797 ctl_datamove((union ctl_io *)ctsio); 6798 6799 return (CTL_RETVAL_COMPLETE); 6800 } 6801 6802 switch (ctsio->cdb[0]) { 6803 case MODE_SELECT_6: { 6804 struct scsi_mode_header_6 *mh6; 6805 6806 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6807 bd_len = mh6->blk_desc_len; 6808 break; 6809 } 6810 case MODE_SELECT_10: { 6811 struct scsi_mode_header_10 *mh10; 6812 6813 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6814 bd_len = scsi_2btoul(mh10->blk_desc_len); 6815 break; 6816 } 6817 default: 6818 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6819 break; 6820 } 6821 6822 if (param_len < (header_size + bd_len)) { 6823 free(ctsio->kern_data_ptr, M_CTL); 6824 ctl_set_param_len_error(ctsio); 6825 ctl_done((union ctl_io *)ctsio); 6826 return (CTL_RETVAL_COMPLETE); 6827 } 6828 6829 /* 6830 * Set the IO_CONT flag, so that if this I/O gets passed to 6831 * ctl_config_write_done(), it'll get passed back to 6832 * ctl_do_mode_select() for further processing, or completion if 6833 * we're all done. 6834 */ 6835 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6836 ctsio->io_cont = ctl_do_mode_select; 6837 6838 modepage_info = (union ctl_modepage_info *) 6839 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6840 6841 memset(modepage_info, 0, sizeof(*modepage_info)); 6842 6843 len_left = param_len - header_size - bd_len; 6844 len_used = header_size + bd_len; 6845 6846 modepage_info->header.len_left = len_left; 6847 modepage_info->header.len_used = len_used; 6848 6849 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6850} 6851 6852int 6853ctl_mode_sense(struct ctl_scsiio *ctsio) 6854{ 6855 struct ctl_lun *lun; 6856 int pc, page_code, dbd, llba, subpage; 6857 int alloc_len, page_len, header_len, total_len; 6858 struct scsi_mode_block_descr *block_desc; 6859 struct ctl_page_index *page_index; 6860 int control_dev; 6861 6862 dbd = 0; 6863 llba = 0; 6864 block_desc = NULL; 6865 page_index = NULL; 6866 6867 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6868 6869 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6870 6871 if (lun->be_lun->lun_type != T_DIRECT) 6872 control_dev = 1; 6873 else 6874 control_dev = 0; 6875 6876 if (lun->flags & CTL_LUN_PR_RESERVED) { 6877 uint32_t residx; 6878 6879 /* 6880 * XXX KDM need a lock here. 6881 */ 6882 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6883 if ((lun->res_type == SPR_TYPE_EX_AC 6884 && residx != lun->pr_res_idx) 6885 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6886 || lun->res_type == SPR_TYPE_EX_AC_AR) 6887 && lun->pr_keys[residx] == 0)) { 6888 ctl_set_reservation_conflict(ctsio); 6889 ctl_done((union ctl_io *)ctsio); 6890 return (CTL_RETVAL_COMPLETE); 6891 } 6892 } 6893 6894 switch (ctsio->cdb[0]) { 6895 case MODE_SENSE_6: { 6896 struct scsi_mode_sense_6 *cdb; 6897 6898 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6899 6900 header_len = sizeof(struct scsi_mode_hdr_6); 6901 if (cdb->byte2 & SMS_DBD) 6902 dbd = 1; 6903 else 6904 header_len += sizeof(struct scsi_mode_block_descr); 6905 6906 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6907 page_code = cdb->page & SMS_PAGE_CODE; 6908 subpage = cdb->subpage; 6909 alloc_len = cdb->length; 6910 break; 6911 } 6912 case MODE_SENSE_10: { 6913 struct scsi_mode_sense_10 *cdb; 6914 6915 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6916 6917 header_len = sizeof(struct scsi_mode_hdr_10); 6918 6919 if (cdb->byte2 & SMS_DBD) 6920 dbd = 1; 6921 else 6922 header_len += sizeof(struct scsi_mode_block_descr); 6923 if (cdb->byte2 & SMS10_LLBAA) 6924 llba = 1; 6925 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6926 page_code = cdb->page & SMS_PAGE_CODE; 6927 subpage = cdb->subpage; 6928 alloc_len = scsi_2btoul(cdb->length); 6929 break; 6930 } 6931 default: 6932 ctl_set_invalid_opcode(ctsio); 6933 ctl_done((union ctl_io *)ctsio); 6934 return (CTL_RETVAL_COMPLETE); 6935 break; /* NOTREACHED */ 6936 } 6937 6938 /* 6939 * We have to make a first pass through to calculate the size of 6940 * the pages that match the user's query. Then we allocate enough 6941 * memory to hold it, and actually copy the data into the buffer. 6942 */ 6943 switch (page_code) { 6944 case SMS_ALL_PAGES_PAGE: { 6945 int i; 6946 6947 page_len = 0; 6948 6949 /* 6950 * At the moment, values other than 0 and 0xff here are 6951 * reserved according to SPC-3. 6952 */ 6953 if ((subpage != SMS_SUBPAGE_PAGE_0) 6954 && (subpage != SMS_SUBPAGE_ALL)) { 6955 ctl_set_invalid_field(ctsio, 6956 /*sks_valid*/ 1, 6957 /*command*/ 1, 6958 /*field*/ 3, 6959 /*bit_valid*/ 0, 6960 /*bit*/ 0); 6961 ctl_done((union ctl_io *)ctsio); 6962 return (CTL_RETVAL_COMPLETE); 6963 } 6964 6965 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6966 if ((control_dev != 0) 6967 && (lun->mode_pages.index[i].page_flags & 6968 CTL_PAGE_FLAG_DISK_ONLY)) 6969 continue; 6970 6971 /* 6972 * We don't use this subpage if the user didn't 6973 * request all subpages. 6974 */ 6975 if ((lun->mode_pages.index[i].subpage != 0) 6976 && (subpage == SMS_SUBPAGE_PAGE_0)) 6977 continue; 6978 6979#if 0 6980 printf("found page %#x len %d\n", 6981 lun->mode_pages.index[i].page_code & 6982 SMPH_PC_MASK, 6983 lun->mode_pages.index[i].page_len); 6984#endif 6985 page_len += lun->mode_pages.index[i].page_len; 6986 } 6987 break; 6988 } 6989 default: { 6990 int i; 6991 6992 page_len = 0; 6993 6994 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6995 /* Look for the right page code */ 6996 if ((lun->mode_pages.index[i].page_code & 6997 SMPH_PC_MASK) != page_code) 6998 continue; 6999 7000 /* Look for the right subpage or the subpage wildcard*/ 7001 if ((lun->mode_pages.index[i].subpage != subpage) 7002 && (subpage != SMS_SUBPAGE_ALL)) 7003 continue; 7004 7005 /* Make sure the page is supported for this dev type */ 7006 if ((control_dev != 0) 7007 && (lun->mode_pages.index[i].page_flags & 7008 CTL_PAGE_FLAG_DISK_ONLY)) 7009 continue; 7010 7011#if 0 7012 printf("found page %#x len %d\n", 7013 lun->mode_pages.index[i].page_code & 7014 SMPH_PC_MASK, 7015 lun->mode_pages.index[i].page_len); 7016#endif 7017 7018 page_len += lun->mode_pages.index[i].page_len; 7019 } 7020 7021 if (page_len == 0) { 7022 ctl_set_invalid_field(ctsio, 7023 /*sks_valid*/ 1, 7024 /*command*/ 1, 7025 /*field*/ 2, 7026 /*bit_valid*/ 1, 7027 /*bit*/ 5); 7028 ctl_done((union ctl_io *)ctsio); 7029 return (CTL_RETVAL_COMPLETE); 7030 } 7031 break; 7032 } 7033 } 7034 7035 total_len = header_len + page_len; 7036#if 0 7037 printf("header_len = %d, page_len = %d, total_len = %d\n", 7038 header_len, page_len, total_len); 7039#endif 7040 7041 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7042 ctsio->kern_sg_entries = 0; 7043 ctsio->kern_data_resid = 0; 7044 ctsio->kern_rel_offset = 0; 7045 if (total_len < alloc_len) { 7046 ctsio->residual = alloc_len - total_len; 7047 ctsio->kern_data_len = total_len; 7048 ctsio->kern_total_len = total_len; 7049 } else { 7050 ctsio->residual = 0; 7051 ctsio->kern_data_len = alloc_len; 7052 ctsio->kern_total_len = alloc_len; 7053 } 7054 7055 switch (ctsio->cdb[0]) { 7056 case MODE_SENSE_6: { 7057 struct scsi_mode_hdr_6 *header; 7058 7059 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7060 7061 header->datalen = ctl_min(total_len - 1, 254); 7062 if (control_dev == 0) { 7063 header->dev_specific = 0x10; /* DPOFUA */ 7064 if ((lun->flags & CTL_LUN_READONLY) || 7065 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7066 .eca_and_aen & SCP_SWP) != 0) 7067 header->dev_specific |= 0x80; /* WP */ 7068 } 7069 if (dbd) 7070 header->block_descr_len = 0; 7071 else 7072 header->block_descr_len = 7073 sizeof(struct scsi_mode_block_descr); 7074 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7075 break; 7076 } 7077 case MODE_SENSE_10: { 7078 struct scsi_mode_hdr_10 *header; 7079 int datalen; 7080 7081 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7082 7083 datalen = ctl_min(total_len - 2, 65533); 7084 scsi_ulto2b(datalen, header->datalen); 7085 if (control_dev == 0) { 7086 header->dev_specific = 0x10; /* DPOFUA */ 7087 if ((lun->flags & CTL_LUN_READONLY) || 7088 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7089 .eca_and_aen & SCP_SWP) != 0) 7090 header->dev_specific |= 0x80; /* WP */ 7091 } 7092 if (dbd) 7093 scsi_ulto2b(0, header->block_descr_len); 7094 else 7095 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7096 header->block_descr_len); 7097 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7098 break; 7099 } 7100 default: 7101 panic("invalid CDB type %#x", ctsio->cdb[0]); 7102 break; /* NOTREACHED */ 7103 } 7104 7105 /* 7106 * If we've got a disk, use its blocksize in the block 7107 * descriptor. Otherwise, just set it to 0. 7108 */ 7109 if (dbd == 0) { 7110 if (control_dev == 0) 7111 scsi_ulto3b(lun->be_lun->blocksize, 7112 block_desc->block_len); 7113 else 7114 scsi_ulto3b(0, block_desc->block_len); 7115 } 7116 7117 switch (page_code) { 7118 case SMS_ALL_PAGES_PAGE: { 7119 int i, data_used; 7120 7121 data_used = header_len; 7122 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7123 struct ctl_page_index *page_index; 7124 7125 page_index = &lun->mode_pages.index[i]; 7126 7127 if ((control_dev != 0) 7128 && (page_index->page_flags & 7129 CTL_PAGE_FLAG_DISK_ONLY)) 7130 continue; 7131 7132 /* 7133 * We don't use this subpage if the user didn't 7134 * request all subpages. We already checked (above) 7135 * to make sure the user only specified a subpage 7136 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7137 */ 7138 if ((page_index->subpage != 0) 7139 && (subpage == SMS_SUBPAGE_PAGE_0)) 7140 continue; 7141 7142 /* 7143 * Call the handler, if it exists, to update the 7144 * page to the latest values. 7145 */ 7146 if (page_index->sense_handler != NULL) 7147 page_index->sense_handler(ctsio, page_index,pc); 7148 7149 memcpy(ctsio->kern_data_ptr + data_used, 7150 page_index->page_data + 7151 (page_index->page_len * pc), 7152 page_index->page_len); 7153 data_used += page_index->page_len; 7154 } 7155 break; 7156 } 7157 default: { 7158 int i, data_used; 7159 7160 data_used = header_len; 7161 7162 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7163 struct ctl_page_index *page_index; 7164 7165 page_index = &lun->mode_pages.index[i]; 7166 7167 /* Look for the right page code */ 7168 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7169 continue; 7170 7171 /* Look for the right subpage or the subpage wildcard*/ 7172 if ((page_index->subpage != subpage) 7173 && (subpage != SMS_SUBPAGE_ALL)) 7174 continue; 7175 7176 /* Make sure the page is supported for this dev type */ 7177 if ((control_dev != 0) 7178 && (page_index->page_flags & 7179 CTL_PAGE_FLAG_DISK_ONLY)) 7180 continue; 7181 7182 /* 7183 * Call the handler, if it exists, to update the 7184 * page to the latest values. 7185 */ 7186 if (page_index->sense_handler != NULL) 7187 page_index->sense_handler(ctsio, page_index,pc); 7188 7189 memcpy(ctsio->kern_data_ptr + data_used, 7190 page_index->page_data + 7191 (page_index->page_len * pc), 7192 page_index->page_len); 7193 data_used += page_index->page_len; 7194 } 7195 break; 7196 } 7197 } 7198 7199 ctsio->scsi_status = SCSI_STATUS_OK; 7200 7201 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7202 ctsio->be_move_done = ctl_config_move_done; 7203 ctl_datamove((union ctl_io *)ctsio); 7204 7205 return (CTL_RETVAL_COMPLETE); 7206} 7207 7208int 7209ctl_read_capacity(struct ctl_scsiio *ctsio) 7210{ 7211 struct scsi_read_capacity *cdb; 7212 struct scsi_read_capacity_data *data; 7213 struct ctl_lun *lun; 7214 uint32_t lba; 7215 7216 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7217 7218 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7219 7220 lba = scsi_4btoul(cdb->addr); 7221 if (((cdb->pmi & SRC_PMI) == 0) 7222 && (lba != 0)) { 7223 ctl_set_invalid_field(/*ctsio*/ ctsio, 7224 /*sks_valid*/ 1, 7225 /*command*/ 1, 7226 /*field*/ 2, 7227 /*bit_valid*/ 0, 7228 /*bit*/ 0); 7229 ctl_done((union ctl_io *)ctsio); 7230 return (CTL_RETVAL_COMPLETE); 7231 } 7232 7233 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7234 7235 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7236 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7237 ctsio->residual = 0; 7238 ctsio->kern_data_len = sizeof(*data); 7239 ctsio->kern_total_len = sizeof(*data); 7240 ctsio->kern_data_resid = 0; 7241 ctsio->kern_rel_offset = 0; 7242 ctsio->kern_sg_entries = 0; 7243 7244 /* 7245 * If the maximum LBA is greater than 0xfffffffe, the user must 7246 * issue a SERVICE ACTION IN (16) command, with the read capacity 7247 * serivce action set. 7248 */ 7249 if (lun->be_lun->maxlba > 0xfffffffe) 7250 scsi_ulto4b(0xffffffff, data->addr); 7251 else 7252 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7253 7254 /* 7255 * XXX KDM this may not be 512 bytes... 7256 */ 7257 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7258 7259 ctsio->scsi_status = SCSI_STATUS_OK; 7260 7261 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7262 ctsio->be_move_done = ctl_config_move_done; 7263 ctl_datamove((union ctl_io *)ctsio); 7264 7265 return (CTL_RETVAL_COMPLETE); 7266} 7267 7268int 7269ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7270{ 7271 struct scsi_read_capacity_16 *cdb; 7272 struct scsi_read_capacity_data_long *data; 7273 struct ctl_lun *lun; 7274 uint64_t lba; 7275 uint32_t alloc_len; 7276 7277 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7278 7279 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7280 7281 alloc_len = scsi_4btoul(cdb->alloc_len); 7282 lba = scsi_8btou64(cdb->addr); 7283 7284 if ((cdb->reladr & SRC16_PMI) 7285 && (lba != 0)) { 7286 ctl_set_invalid_field(/*ctsio*/ ctsio, 7287 /*sks_valid*/ 1, 7288 /*command*/ 1, 7289 /*field*/ 2, 7290 /*bit_valid*/ 0, 7291 /*bit*/ 0); 7292 ctl_done((union ctl_io *)ctsio); 7293 return (CTL_RETVAL_COMPLETE); 7294 } 7295 7296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7297 7298 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7299 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7300 7301 if (sizeof(*data) < alloc_len) { 7302 ctsio->residual = alloc_len - sizeof(*data); 7303 ctsio->kern_data_len = sizeof(*data); 7304 ctsio->kern_total_len = sizeof(*data); 7305 } else { 7306 ctsio->residual = 0; 7307 ctsio->kern_data_len = alloc_len; 7308 ctsio->kern_total_len = alloc_len; 7309 } 7310 ctsio->kern_data_resid = 0; 7311 ctsio->kern_rel_offset = 0; 7312 ctsio->kern_sg_entries = 0; 7313 7314 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7315 /* XXX KDM this may not be 512 bytes... */ 7316 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7317 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7318 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7319 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7320 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7321 7322 ctsio->scsi_status = SCSI_STATUS_OK; 7323 7324 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7325 ctsio->be_move_done = ctl_config_move_done; 7326 ctl_datamove((union ctl_io *)ctsio); 7327 7328 return (CTL_RETVAL_COMPLETE); 7329} 7330 7331int 7332ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7333{ 7334 struct scsi_maintenance_in *cdb; 7335 int retval; 7336 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7337 int num_target_port_groups, num_target_ports, single; 7338 struct ctl_lun *lun; 7339 struct ctl_softc *softc; 7340 struct ctl_port *port; 7341 struct scsi_target_group_data *rtg_ptr; 7342 struct scsi_target_group_data_extended *rtg_ext_ptr; 7343 struct scsi_target_port_group_descriptor *tpg_desc; 7344 7345 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7346 7347 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7348 softc = control_softc; 7349 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7350 7351 retval = CTL_RETVAL_COMPLETE; 7352 7353 switch (cdb->byte2 & STG_PDF_MASK) { 7354 case STG_PDF_LENGTH: 7355 ext = 0; 7356 break; 7357 case STG_PDF_EXTENDED: 7358 ext = 1; 7359 break; 7360 default: 7361 ctl_set_invalid_field(/*ctsio*/ ctsio, 7362 /*sks_valid*/ 1, 7363 /*command*/ 1, 7364 /*field*/ 2, 7365 /*bit_valid*/ 1, 7366 /*bit*/ 5); 7367 ctl_done((union ctl_io *)ctsio); 7368 return(retval); 7369 } 7370 7371 single = ctl_is_single; 7372 if (single) 7373 num_target_port_groups = 1; 7374 else 7375 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7376 num_target_ports = 0; 7377 mtx_lock(&softc->ctl_lock); 7378 STAILQ_FOREACH(port, &softc->port_list, links) { 7379 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7380 continue; 7381 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7382 continue; 7383 num_target_ports++; 7384 } 7385 mtx_unlock(&softc->ctl_lock); 7386 7387 if (ext) 7388 total_len = sizeof(struct scsi_target_group_data_extended); 7389 else 7390 total_len = sizeof(struct scsi_target_group_data); 7391 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7392 num_target_port_groups + 7393 sizeof(struct scsi_target_port_descriptor) * 7394 num_target_ports * num_target_port_groups; 7395 7396 alloc_len = scsi_4btoul(cdb->length); 7397 7398 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7399 7400 ctsio->kern_sg_entries = 0; 7401 7402 if (total_len < alloc_len) { 7403 ctsio->residual = alloc_len - total_len; 7404 ctsio->kern_data_len = total_len; 7405 ctsio->kern_total_len = total_len; 7406 } else { 7407 ctsio->residual = 0; 7408 ctsio->kern_data_len = alloc_len; 7409 ctsio->kern_total_len = alloc_len; 7410 } 7411 ctsio->kern_data_resid = 0; 7412 ctsio->kern_rel_offset = 0; 7413 7414 if (ext) { 7415 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7416 ctsio->kern_data_ptr; 7417 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7418 rtg_ext_ptr->format_type = 0x10; 7419 rtg_ext_ptr->implicit_transition_time = 0; 7420 tpg_desc = &rtg_ext_ptr->groups[0]; 7421 } else { 7422 rtg_ptr = (struct scsi_target_group_data *) 7423 ctsio->kern_data_ptr; 7424 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7425 tpg_desc = &rtg_ptr->groups[0]; 7426 } 7427 7428 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7429 mtx_lock(&softc->ctl_lock); 7430 for (g = 0; g < num_target_port_groups; g++) { 7431 if (g == pg) 7432 tpg_desc->pref_state = TPG_PRIMARY | 7433 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7434 else 7435 tpg_desc->pref_state = 7436 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7437 tpg_desc->support = TPG_AO_SUP; 7438 if (!single) 7439 tpg_desc->support |= TPG_AN_SUP; 7440 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7441 tpg_desc->status = TPG_IMPLICIT; 7442 pc = 0; 7443 STAILQ_FOREACH(port, &softc->port_list, links) { 7444 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7445 continue; 7446 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7447 CTL_MAX_LUNS) 7448 continue; 7449 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7450 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7451 relative_target_port_identifier); 7452 pc++; 7453 } 7454 tpg_desc->target_port_count = pc; 7455 tpg_desc = (struct scsi_target_port_group_descriptor *) 7456 &tpg_desc->descriptors[pc]; 7457 } 7458 mtx_unlock(&softc->ctl_lock); 7459 7460 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7461 ctsio->be_move_done = ctl_config_move_done; 7462 7463 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7464 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7465 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7466 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7467 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7468 7469 ctl_datamove((union ctl_io *)ctsio); 7470 return(retval); 7471} 7472 7473int 7474ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7475{ 7476 struct ctl_lun *lun; 7477 struct scsi_report_supported_opcodes *cdb; 7478 const struct ctl_cmd_entry *entry, *sentry; 7479 struct scsi_report_supported_opcodes_all *all; 7480 struct scsi_report_supported_opcodes_descr *descr; 7481 struct scsi_report_supported_opcodes_one *one; 7482 int retval; 7483 int alloc_len, total_len; 7484 int opcode, service_action, i, j, num; 7485 7486 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7487 7488 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7489 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7490 7491 retval = CTL_RETVAL_COMPLETE; 7492 7493 opcode = cdb->requested_opcode; 7494 service_action = scsi_2btoul(cdb->requested_service_action); 7495 switch (cdb->options & RSO_OPTIONS_MASK) { 7496 case RSO_OPTIONS_ALL: 7497 num = 0; 7498 for (i = 0; i < 256; i++) { 7499 entry = &ctl_cmd_table[i]; 7500 if (entry->flags & CTL_CMD_FLAG_SA5) { 7501 for (j = 0; j < 32; j++) { 7502 sentry = &((const struct ctl_cmd_entry *) 7503 entry->execute)[j]; 7504 if (ctl_cmd_applicable( 7505 lun->be_lun->lun_type, sentry)) 7506 num++; 7507 } 7508 } else { 7509 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7510 entry)) 7511 num++; 7512 } 7513 } 7514 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7515 num * sizeof(struct scsi_report_supported_opcodes_descr); 7516 break; 7517 case RSO_OPTIONS_OC: 7518 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7519 ctl_set_invalid_field(/*ctsio*/ ctsio, 7520 /*sks_valid*/ 1, 7521 /*command*/ 1, 7522 /*field*/ 2, 7523 /*bit_valid*/ 1, 7524 /*bit*/ 2); 7525 ctl_done((union ctl_io *)ctsio); 7526 return (CTL_RETVAL_COMPLETE); 7527 } 7528 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7529 break; 7530 case RSO_OPTIONS_OC_SA: 7531 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7532 service_action >= 32) { 7533 ctl_set_invalid_field(/*ctsio*/ ctsio, 7534 /*sks_valid*/ 1, 7535 /*command*/ 1, 7536 /*field*/ 2, 7537 /*bit_valid*/ 1, 7538 /*bit*/ 2); 7539 ctl_done((union ctl_io *)ctsio); 7540 return (CTL_RETVAL_COMPLETE); 7541 } 7542 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7543 break; 7544 default: 7545 ctl_set_invalid_field(/*ctsio*/ ctsio, 7546 /*sks_valid*/ 1, 7547 /*command*/ 1, 7548 /*field*/ 2, 7549 /*bit_valid*/ 1, 7550 /*bit*/ 2); 7551 ctl_done((union ctl_io *)ctsio); 7552 return (CTL_RETVAL_COMPLETE); 7553 } 7554 7555 alloc_len = scsi_4btoul(cdb->length); 7556 7557 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7558 7559 ctsio->kern_sg_entries = 0; 7560 7561 if (total_len < alloc_len) { 7562 ctsio->residual = alloc_len - total_len; 7563 ctsio->kern_data_len = total_len; 7564 ctsio->kern_total_len = total_len; 7565 } else { 7566 ctsio->residual = 0; 7567 ctsio->kern_data_len = alloc_len; 7568 ctsio->kern_total_len = alloc_len; 7569 } 7570 ctsio->kern_data_resid = 0; 7571 ctsio->kern_rel_offset = 0; 7572 7573 switch (cdb->options & RSO_OPTIONS_MASK) { 7574 case RSO_OPTIONS_ALL: 7575 all = (struct scsi_report_supported_opcodes_all *) 7576 ctsio->kern_data_ptr; 7577 num = 0; 7578 for (i = 0; i < 256; i++) { 7579 entry = &ctl_cmd_table[i]; 7580 if (entry->flags & CTL_CMD_FLAG_SA5) { 7581 for (j = 0; j < 32; j++) { 7582 sentry = &((const struct ctl_cmd_entry *) 7583 entry->execute)[j]; 7584 if (!ctl_cmd_applicable( 7585 lun->be_lun->lun_type, sentry)) 7586 continue; 7587 descr = &all->descr[num++]; 7588 descr->opcode = i; 7589 scsi_ulto2b(j, descr->service_action); 7590 descr->flags = RSO_SERVACTV; 7591 scsi_ulto2b(sentry->length, 7592 descr->cdb_length); 7593 } 7594 } else { 7595 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7596 entry)) 7597 continue; 7598 descr = &all->descr[num++]; 7599 descr->opcode = i; 7600 scsi_ulto2b(0, descr->service_action); 7601 descr->flags = 0; 7602 scsi_ulto2b(entry->length, descr->cdb_length); 7603 } 7604 } 7605 scsi_ulto4b( 7606 num * sizeof(struct scsi_report_supported_opcodes_descr), 7607 all->length); 7608 break; 7609 case RSO_OPTIONS_OC: 7610 one = (struct scsi_report_supported_opcodes_one *) 7611 ctsio->kern_data_ptr; 7612 entry = &ctl_cmd_table[opcode]; 7613 goto fill_one; 7614 case RSO_OPTIONS_OC_SA: 7615 one = (struct scsi_report_supported_opcodes_one *) 7616 ctsio->kern_data_ptr; 7617 entry = &ctl_cmd_table[opcode]; 7618 entry = &((const struct ctl_cmd_entry *) 7619 entry->execute)[service_action]; 7620fill_one: 7621 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7622 one->support = 3; 7623 scsi_ulto2b(entry->length, one->cdb_length); 7624 one->cdb_usage[0] = opcode; 7625 memcpy(&one->cdb_usage[1], entry->usage, 7626 entry->length - 1); 7627 } else 7628 one->support = 1; 7629 break; 7630 } 7631 7632 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7633 ctsio->be_move_done = ctl_config_move_done; 7634 7635 ctl_datamove((union ctl_io *)ctsio); 7636 return(retval); 7637} 7638 7639int 7640ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7641{ 7642 struct ctl_lun *lun; 7643 struct scsi_report_supported_tmf *cdb; 7644 struct scsi_report_supported_tmf_data *data; 7645 int retval; 7646 int alloc_len, total_len; 7647 7648 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7649 7650 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7651 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7652 7653 retval = CTL_RETVAL_COMPLETE; 7654 7655 total_len = sizeof(struct scsi_report_supported_tmf_data); 7656 alloc_len = scsi_4btoul(cdb->length); 7657 7658 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7659 7660 ctsio->kern_sg_entries = 0; 7661 7662 if (total_len < alloc_len) { 7663 ctsio->residual = alloc_len - total_len; 7664 ctsio->kern_data_len = total_len; 7665 ctsio->kern_total_len = total_len; 7666 } else { 7667 ctsio->residual = 0; 7668 ctsio->kern_data_len = alloc_len; 7669 ctsio->kern_total_len = alloc_len; 7670 } 7671 ctsio->kern_data_resid = 0; 7672 ctsio->kern_rel_offset = 0; 7673 7674 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7675 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7676 data->byte2 |= RST_ITNRS; 7677 7678 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7679 ctsio->be_move_done = ctl_config_move_done; 7680 7681 ctl_datamove((union ctl_io *)ctsio); 7682 return (retval); 7683} 7684 7685int 7686ctl_report_timestamp(struct ctl_scsiio *ctsio) 7687{ 7688 struct ctl_lun *lun; 7689 struct scsi_report_timestamp *cdb; 7690 struct scsi_report_timestamp_data *data; 7691 struct timeval tv; 7692 int64_t timestamp; 7693 int retval; 7694 int alloc_len, total_len; 7695 7696 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7697 7698 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7700 7701 retval = CTL_RETVAL_COMPLETE; 7702 7703 total_len = sizeof(struct scsi_report_timestamp_data); 7704 alloc_len = scsi_4btoul(cdb->length); 7705 7706 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7707 7708 ctsio->kern_sg_entries = 0; 7709 7710 if (total_len < alloc_len) { 7711 ctsio->residual = alloc_len - total_len; 7712 ctsio->kern_data_len = total_len; 7713 ctsio->kern_total_len = total_len; 7714 } else { 7715 ctsio->residual = 0; 7716 ctsio->kern_data_len = alloc_len; 7717 ctsio->kern_total_len = alloc_len; 7718 } 7719 ctsio->kern_data_resid = 0; 7720 ctsio->kern_rel_offset = 0; 7721 7722 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7723 scsi_ulto2b(sizeof(*data) - 2, data->length); 7724 data->origin = RTS_ORIG_OUTSIDE; 7725 getmicrotime(&tv); 7726 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7727 scsi_ulto4b(timestamp >> 16, data->timestamp); 7728 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7729 7730 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7731 ctsio->be_move_done = ctl_config_move_done; 7732 7733 ctl_datamove((union ctl_io *)ctsio); 7734 return (retval); 7735} 7736 7737int 7738ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7739{ 7740 struct scsi_per_res_in *cdb; 7741 int alloc_len, total_len = 0; 7742 /* struct scsi_per_res_in_rsrv in_data; */ 7743 struct ctl_lun *lun; 7744 struct ctl_softc *softc; 7745 7746 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7747 7748 softc = control_softc; 7749 7750 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7751 7752 alloc_len = scsi_2btoul(cdb->length); 7753 7754 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7755 7756retry: 7757 mtx_lock(&lun->lun_lock); 7758 switch (cdb->action) { 7759 case SPRI_RK: /* read keys */ 7760 total_len = sizeof(struct scsi_per_res_in_keys) + 7761 lun->pr_key_count * 7762 sizeof(struct scsi_per_res_key); 7763 break; 7764 case SPRI_RR: /* read reservation */ 7765 if (lun->flags & CTL_LUN_PR_RESERVED) 7766 total_len = sizeof(struct scsi_per_res_in_rsrv); 7767 else 7768 total_len = sizeof(struct scsi_per_res_in_header); 7769 break; 7770 case SPRI_RC: /* report capabilities */ 7771 total_len = sizeof(struct scsi_per_res_cap); 7772 break; 7773 case SPRI_RS: /* read full status */ 7774 total_len = sizeof(struct scsi_per_res_in_header) + 7775 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7776 lun->pr_key_count; 7777 break; 7778 default: 7779 panic("Invalid PR type %x", cdb->action); 7780 } 7781 mtx_unlock(&lun->lun_lock); 7782 7783 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7784 7785 if (total_len < alloc_len) { 7786 ctsio->residual = alloc_len - total_len; 7787 ctsio->kern_data_len = total_len; 7788 ctsio->kern_total_len = total_len; 7789 } else { 7790 ctsio->residual = 0; 7791 ctsio->kern_data_len = alloc_len; 7792 ctsio->kern_total_len = alloc_len; 7793 } 7794 7795 ctsio->kern_data_resid = 0; 7796 ctsio->kern_rel_offset = 0; 7797 ctsio->kern_sg_entries = 0; 7798 7799 mtx_lock(&lun->lun_lock); 7800 switch (cdb->action) { 7801 case SPRI_RK: { // read keys 7802 struct scsi_per_res_in_keys *res_keys; 7803 int i, key_count; 7804 7805 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7806 7807 /* 7808 * We had to drop the lock to allocate our buffer, which 7809 * leaves time for someone to come in with another 7810 * persistent reservation. (That is unlikely, though, 7811 * since this should be the only persistent reservation 7812 * command active right now.) 7813 */ 7814 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7815 (lun->pr_key_count * 7816 sizeof(struct scsi_per_res_key)))){ 7817 mtx_unlock(&lun->lun_lock); 7818 free(ctsio->kern_data_ptr, M_CTL); 7819 printf("%s: reservation length changed, retrying\n", 7820 __func__); 7821 goto retry; 7822 } 7823 7824 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7825 7826 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7827 lun->pr_key_count, res_keys->header.length); 7828 7829 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7830 if (lun->pr_keys[i] == 0) 7831 continue; 7832 7833 /* 7834 * We used lun->pr_key_count to calculate the 7835 * size to allocate. If it turns out the number of 7836 * initiators with the registered flag set is 7837 * larger than that (i.e. they haven't been kept in 7838 * sync), we've got a problem. 7839 */ 7840 if (key_count >= lun->pr_key_count) { 7841#ifdef NEEDTOPORT 7842 csevent_log(CSC_CTL | CSC_SHELF_SW | 7843 CTL_PR_ERROR, 7844 csevent_LogType_Fault, 7845 csevent_AlertLevel_Yellow, 7846 csevent_FRU_ShelfController, 7847 csevent_FRU_Firmware, 7848 csevent_FRU_Unknown, 7849 "registered keys %d >= key " 7850 "count %d", key_count, 7851 lun->pr_key_count); 7852#endif 7853 key_count++; 7854 continue; 7855 } 7856 scsi_u64to8b(lun->pr_keys[i], 7857 res_keys->keys[key_count].key); 7858 key_count++; 7859 } 7860 break; 7861 } 7862 case SPRI_RR: { // read reservation 7863 struct scsi_per_res_in_rsrv *res; 7864 int tmp_len, header_only; 7865 7866 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7867 7868 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7869 7870 if (lun->flags & CTL_LUN_PR_RESERVED) 7871 { 7872 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7873 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7874 res->header.length); 7875 header_only = 0; 7876 } else { 7877 tmp_len = sizeof(struct scsi_per_res_in_header); 7878 scsi_ulto4b(0, res->header.length); 7879 header_only = 1; 7880 } 7881 7882 /* 7883 * We had to drop the lock to allocate our buffer, which 7884 * leaves time for someone to come in with another 7885 * persistent reservation. (That is unlikely, though, 7886 * since this should be the only persistent reservation 7887 * command active right now.) 7888 */ 7889 if (tmp_len != total_len) { 7890 mtx_unlock(&lun->lun_lock); 7891 free(ctsio->kern_data_ptr, M_CTL); 7892 printf("%s: reservation status changed, retrying\n", 7893 __func__); 7894 goto retry; 7895 } 7896 7897 /* 7898 * No reservation held, so we're done. 7899 */ 7900 if (header_only != 0) 7901 break; 7902 7903 /* 7904 * If the registration is an All Registrants type, the key 7905 * is 0, since it doesn't really matter. 7906 */ 7907 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7908 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7909 res->data.reservation); 7910 } 7911 res->data.scopetype = lun->res_type; 7912 break; 7913 } 7914 case SPRI_RC: //report capabilities 7915 { 7916 struct scsi_per_res_cap *res_cap; 7917 uint16_t type_mask; 7918 7919 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7920 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7921 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7922 type_mask = SPRI_TM_WR_EX_AR | 7923 SPRI_TM_EX_AC_RO | 7924 SPRI_TM_WR_EX_RO | 7925 SPRI_TM_EX_AC | 7926 SPRI_TM_WR_EX | 7927 SPRI_TM_EX_AC_AR; 7928 scsi_ulto2b(type_mask, res_cap->type_mask); 7929 break; 7930 } 7931 case SPRI_RS: { // read full status 7932 struct scsi_per_res_in_full *res_status; 7933 struct scsi_per_res_in_full_desc *res_desc; 7934 struct ctl_port *port; 7935 int i, len; 7936 7937 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7938 7939 /* 7940 * We had to drop the lock to allocate our buffer, which 7941 * leaves time for someone to come in with another 7942 * persistent reservation. (That is unlikely, though, 7943 * since this should be the only persistent reservation 7944 * command active right now.) 7945 */ 7946 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7947 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7948 lun->pr_key_count)){ 7949 mtx_unlock(&lun->lun_lock); 7950 free(ctsio->kern_data_ptr, M_CTL); 7951 printf("%s: reservation length changed, retrying\n", 7952 __func__); 7953 goto retry; 7954 } 7955 7956 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7957 7958 res_desc = &res_status->desc[0]; 7959 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7960 if (lun->pr_keys[i] == 0) 7961 continue; 7962 7963 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7964 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7965 (lun->pr_res_idx == i || 7966 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7967 res_desc->flags = SPRI_FULL_R_HOLDER; 7968 res_desc->scopetype = lun->res_type; 7969 } 7970 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7971 res_desc->rel_trgt_port_id); 7972 len = 0; 7973 port = softc->ctl_ports[ 7974 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7975 if (port != NULL) 7976 len = ctl_create_iid(port, 7977 i % CTL_MAX_INIT_PER_PORT, 7978 res_desc->transport_id); 7979 scsi_ulto4b(len, res_desc->additional_length); 7980 res_desc = (struct scsi_per_res_in_full_desc *) 7981 &res_desc->transport_id[len]; 7982 } 7983 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7984 res_status->header.length); 7985 break; 7986 } 7987 default: 7988 /* 7989 * This is a bug, because we just checked for this above, 7990 * and should have returned an error. 7991 */ 7992 panic("Invalid PR type %x", cdb->action); 7993 break; /* NOTREACHED */ 7994 } 7995 mtx_unlock(&lun->lun_lock); 7996 7997 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7998 ctsio->be_move_done = ctl_config_move_done; 7999 8000 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8001 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8002 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8003 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8004 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8005 8006 ctl_datamove((union ctl_io *)ctsio); 8007 8008 return (CTL_RETVAL_COMPLETE); 8009} 8010 8011/* 8012 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8013 * it should return. 8014 */ 8015static int 8016ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8017 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8018 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8019 struct scsi_per_res_out_parms* param) 8020{ 8021 union ctl_ha_msg persis_io; 8022 int retval, i; 8023 int isc_retval; 8024 8025 retval = 0; 8026 8027 mtx_lock(&lun->lun_lock); 8028 if (sa_res_key == 0) { 8029 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8030 /* validate scope and type */ 8031 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8032 SPR_LU_SCOPE) { 8033 mtx_unlock(&lun->lun_lock); 8034 ctl_set_invalid_field(/*ctsio*/ ctsio, 8035 /*sks_valid*/ 1, 8036 /*command*/ 1, 8037 /*field*/ 2, 8038 /*bit_valid*/ 1, 8039 /*bit*/ 4); 8040 ctl_done((union ctl_io *)ctsio); 8041 return (1); 8042 } 8043 8044 if (type>8 || type==2 || type==4 || type==0) { 8045 mtx_unlock(&lun->lun_lock); 8046 ctl_set_invalid_field(/*ctsio*/ ctsio, 8047 /*sks_valid*/ 1, 8048 /*command*/ 1, 8049 /*field*/ 2, 8050 /*bit_valid*/ 1, 8051 /*bit*/ 0); 8052 ctl_done((union ctl_io *)ctsio); 8053 return (1); 8054 } 8055 8056 /* 8057 * Unregister everybody else and build UA for 8058 * them 8059 */ 8060 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8061 if (i == residx || lun->pr_keys[i] == 0) 8062 continue; 8063 8064 if (!persis_offset 8065 && i <CTL_MAX_INITIATORS) 8066 lun->pending_ua[i] |= 8067 CTL_UA_REG_PREEMPT; 8068 else if (persis_offset 8069 && i >= persis_offset) 8070 lun->pending_ua[i-persis_offset] |= 8071 CTL_UA_REG_PREEMPT; 8072 lun->pr_keys[i] = 0; 8073 } 8074 lun->pr_key_count = 1; 8075 lun->res_type = type; 8076 if (lun->res_type != SPR_TYPE_WR_EX_AR 8077 && lun->res_type != SPR_TYPE_EX_AC_AR) 8078 lun->pr_res_idx = residx; 8079 8080 /* send msg to other side */ 8081 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8082 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8083 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8084 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8085 persis_io.pr.pr_info.res_type = type; 8086 memcpy(persis_io.pr.pr_info.sa_res_key, 8087 param->serv_act_res_key, 8088 sizeof(param->serv_act_res_key)); 8089 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8090 &persis_io, sizeof(persis_io), 0)) > 8091 CTL_HA_STATUS_SUCCESS) { 8092 printf("CTL:Persis Out error returned " 8093 "from ctl_ha_msg_send %d\n", 8094 isc_retval); 8095 } 8096 } else { 8097 /* not all registrants */ 8098 mtx_unlock(&lun->lun_lock); 8099 free(ctsio->kern_data_ptr, M_CTL); 8100 ctl_set_invalid_field(ctsio, 8101 /*sks_valid*/ 1, 8102 /*command*/ 0, 8103 /*field*/ 8, 8104 /*bit_valid*/ 0, 8105 /*bit*/ 0); 8106 ctl_done((union ctl_io *)ctsio); 8107 return (1); 8108 } 8109 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8110 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8111 int found = 0; 8112 8113 if (res_key == sa_res_key) { 8114 /* special case */ 8115 /* 8116 * The spec implies this is not good but doesn't 8117 * say what to do. There are two choices either 8118 * generate a res conflict or check condition 8119 * with illegal field in parameter data. Since 8120 * that is what is done when the sa_res_key is 8121 * zero I'll take that approach since this has 8122 * to do with the sa_res_key. 8123 */ 8124 mtx_unlock(&lun->lun_lock); 8125 free(ctsio->kern_data_ptr, M_CTL); 8126 ctl_set_invalid_field(ctsio, 8127 /*sks_valid*/ 1, 8128 /*command*/ 0, 8129 /*field*/ 8, 8130 /*bit_valid*/ 0, 8131 /*bit*/ 0); 8132 ctl_done((union ctl_io *)ctsio); 8133 return (1); 8134 } 8135 8136 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8137 if (lun->pr_keys[i] != sa_res_key) 8138 continue; 8139 8140 found = 1; 8141 lun->pr_keys[i] = 0; 8142 lun->pr_key_count--; 8143 8144 if (!persis_offset && i < CTL_MAX_INITIATORS) 8145 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8146 else if (persis_offset && i >= persis_offset) 8147 lun->pending_ua[i-persis_offset] |= 8148 CTL_UA_REG_PREEMPT; 8149 } 8150 if (!found) { 8151 mtx_unlock(&lun->lun_lock); 8152 free(ctsio->kern_data_ptr, M_CTL); 8153 ctl_set_reservation_conflict(ctsio); 8154 ctl_done((union ctl_io *)ctsio); 8155 return (CTL_RETVAL_COMPLETE); 8156 } 8157 /* send msg to other side */ 8158 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8159 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8160 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8161 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8162 persis_io.pr.pr_info.res_type = type; 8163 memcpy(persis_io.pr.pr_info.sa_res_key, 8164 param->serv_act_res_key, 8165 sizeof(param->serv_act_res_key)); 8166 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8167 &persis_io, sizeof(persis_io), 0)) > 8168 CTL_HA_STATUS_SUCCESS) { 8169 printf("CTL:Persis Out error returned from " 8170 "ctl_ha_msg_send %d\n", isc_retval); 8171 } 8172 } else { 8173 /* Reserved but not all registrants */ 8174 /* sa_res_key is res holder */ 8175 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8176 /* validate scope and type */ 8177 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8178 SPR_LU_SCOPE) { 8179 mtx_unlock(&lun->lun_lock); 8180 ctl_set_invalid_field(/*ctsio*/ ctsio, 8181 /*sks_valid*/ 1, 8182 /*command*/ 1, 8183 /*field*/ 2, 8184 /*bit_valid*/ 1, 8185 /*bit*/ 4); 8186 ctl_done((union ctl_io *)ctsio); 8187 return (1); 8188 } 8189 8190 if (type>8 || type==2 || type==4 || type==0) { 8191 mtx_unlock(&lun->lun_lock); 8192 ctl_set_invalid_field(/*ctsio*/ ctsio, 8193 /*sks_valid*/ 1, 8194 /*command*/ 1, 8195 /*field*/ 2, 8196 /*bit_valid*/ 1, 8197 /*bit*/ 0); 8198 ctl_done((union ctl_io *)ctsio); 8199 return (1); 8200 } 8201 8202 /* 8203 * Do the following: 8204 * if sa_res_key != res_key remove all 8205 * registrants w/sa_res_key and generate UA 8206 * for these registrants(Registrations 8207 * Preempted) if it wasn't an exclusive 8208 * reservation generate UA(Reservations 8209 * Preempted) for all other registered nexuses 8210 * if the type has changed. Establish the new 8211 * reservation and holder. If res_key and 8212 * sa_res_key are the same do the above 8213 * except don't unregister the res holder. 8214 */ 8215 8216 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8217 if (i == residx || lun->pr_keys[i] == 0) 8218 continue; 8219 8220 if (sa_res_key == lun->pr_keys[i]) { 8221 lun->pr_keys[i] = 0; 8222 lun->pr_key_count--; 8223 8224 if (!persis_offset 8225 && i < CTL_MAX_INITIATORS) 8226 lun->pending_ua[i] |= 8227 CTL_UA_REG_PREEMPT; 8228 else if (persis_offset 8229 && i >= persis_offset) 8230 lun->pending_ua[i-persis_offset] |= 8231 CTL_UA_REG_PREEMPT; 8232 } else if (type != lun->res_type 8233 && (lun->res_type == SPR_TYPE_WR_EX_RO 8234 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8235 if (!persis_offset 8236 && i < CTL_MAX_INITIATORS) 8237 lun->pending_ua[i] |= 8238 CTL_UA_RES_RELEASE; 8239 else if (persis_offset 8240 && i >= persis_offset) 8241 lun->pending_ua[ 8242 i-persis_offset] |= 8243 CTL_UA_RES_RELEASE; 8244 } 8245 } 8246 lun->res_type = type; 8247 if (lun->res_type != SPR_TYPE_WR_EX_AR 8248 && lun->res_type != SPR_TYPE_EX_AC_AR) 8249 lun->pr_res_idx = residx; 8250 else 8251 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8252 8253 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8254 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8255 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8256 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8257 persis_io.pr.pr_info.res_type = type; 8258 memcpy(persis_io.pr.pr_info.sa_res_key, 8259 param->serv_act_res_key, 8260 sizeof(param->serv_act_res_key)); 8261 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8262 &persis_io, sizeof(persis_io), 0)) > 8263 CTL_HA_STATUS_SUCCESS) { 8264 printf("CTL:Persis Out error returned " 8265 "from ctl_ha_msg_send %d\n", 8266 isc_retval); 8267 } 8268 } else { 8269 /* 8270 * sa_res_key is not the res holder just 8271 * remove registrants 8272 */ 8273 int found=0; 8274 8275 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8276 if (sa_res_key != lun->pr_keys[i]) 8277 continue; 8278 8279 found = 1; 8280 lun->pr_keys[i] = 0; 8281 lun->pr_key_count--; 8282 8283 if (!persis_offset 8284 && i < CTL_MAX_INITIATORS) 8285 lun->pending_ua[i] |= 8286 CTL_UA_REG_PREEMPT; 8287 else if (persis_offset 8288 && i >= persis_offset) 8289 lun->pending_ua[i-persis_offset] |= 8290 CTL_UA_REG_PREEMPT; 8291 } 8292 8293 if (!found) { 8294 mtx_unlock(&lun->lun_lock); 8295 free(ctsio->kern_data_ptr, M_CTL); 8296 ctl_set_reservation_conflict(ctsio); 8297 ctl_done((union ctl_io *)ctsio); 8298 return (1); 8299 } 8300 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8301 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8302 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8303 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8304 persis_io.pr.pr_info.res_type = type; 8305 memcpy(persis_io.pr.pr_info.sa_res_key, 8306 param->serv_act_res_key, 8307 sizeof(param->serv_act_res_key)); 8308 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8309 &persis_io, sizeof(persis_io), 0)) > 8310 CTL_HA_STATUS_SUCCESS) { 8311 printf("CTL:Persis Out error returned " 8312 "from ctl_ha_msg_send %d\n", 8313 isc_retval); 8314 } 8315 } 8316 } 8317 8318 lun->PRGeneration++; 8319 mtx_unlock(&lun->lun_lock); 8320 8321 return (retval); 8322} 8323 8324static void 8325ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8326{ 8327 uint64_t sa_res_key; 8328 int i; 8329 8330 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8331 8332 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8333 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8334 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8335 if (sa_res_key == 0) { 8336 /* 8337 * Unregister everybody else and build UA for 8338 * them 8339 */ 8340 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8341 if (i == msg->pr.pr_info.residx || 8342 lun->pr_keys[i] == 0) 8343 continue; 8344 8345 if (!persis_offset 8346 && i < CTL_MAX_INITIATORS) 8347 lun->pending_ua[i] |= 8348 CTL_UA_REG_PREEMPT; 8349 else if (persis_offset && i >= persis_offset) 8350 lun->pending_ua[i - persis_offset] |= 8351 CTL_UA_REG_PREEMPT; 8352 lun->pr_keys[i] = 0; 8353 } 8354 8355 lun->pr_key_count = 1; 8356 lun->res_type = msg->pr.pr_info.res_type; 8357 if (lun->res_type != SPR_TYPE_WR_EX_AR 8358 && lun->res_type != SPR_TYPE_EX_AC_AR) 8359 lun->pr_res_idx = msg->pr.pr_info.residx; 8360 } else { 8361 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8362 if (sa_res_key == lun->pr_keys[i]) 8363 continue; 8364 8365 lun->pr_keys[i] = 0; 8366 lun->pr_key_count--; 8367 8368 if (!persis_offset 8369 && i < persis_offset) 8370 lun->pending_ua[i] |= 8371 CTL_UA_REG_PREEMPT; 8372 else if (persis_offset 8373 && i >= persis_offset) 8374 lun->pending_ua[i - persis_offset] |= 8375 CTL_UA_REG_PREEMPT; 8376 } 8377 } 8378 } else { 8379 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8380 if (i == msg->pr.pr_info.residx || 8381 lun->pr_keys[i] == 0) 8382 continue; 8383 8384 if (sa_res_key == lun->pr_keys[i]) { 8385 lun->pr_keys[i] = 0; 8386 lun->pr_key_count--; 8387 if (!persis_offset 8388 && i < CTL_MAX_INITIATORS) 8389 lun->pending_ua[i] |= 8390 CTL_UA_REG_PREEMPT; 8391 else if (persis_offset 8392 && i >= persis_offset) 8393 lun->pending_ua[i - persis_offset] |= 8394 CTL_UA_REG_PREEMPT; 8395 } else if (msg->pr.pr_info.res_type != lun->res_type 8396 && (lun->res_type == SPR_TYPE_WR_EX_RO 8397 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8398 if (!persis_offset 8399 && i < persis_offset) 8400 lun->pending_ua[i] |= 8401 CTL_UA_RES_RELEASE; 8402 else if (persis_offset 8403 && i >= persis_offset) 8404 lun->pending_ua[i - persis_offset] |= 8405 CTL_UA_RES_RELEASE; 8406 } 8407 } 8408 lun->res_type = msg->pr.pr_info.res_type; 8409 if (lun->res_type != SPR_TYPE_WR_EX_AR 8410 && lun->res_type != SPR_TYPE_EX_AC_AR) 8411 lun->pr_res_idx = msg->pr.pr_info.residx; 8412 else 8413 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8414 } 8415 lun->PRGeneration++; 8416 8417} 8418 8419 8420int 8421ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8422{ 8423 int retval; 8424 int isc_retval; 8425 u_int32_t param_len; 8426 struct scsi_per_res_out *cdb; 8427 struct ctl_lun *lun; 8428 struct scsi_per_res_out_parms* param; 8429 struct ctl_softc *softc; 8430 uint32_t residx; 8431 uint64_t res_key, sa_res_key; 8432 uint8_t type; 8433 union ctl_ha_msg persis_io; 8434 int i; 8435 8436 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8437 8438 retval = CTL_RETVAL_COMPLETE; 8439 8440 softc = control_softc; 8441 8442 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8443 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8444 8445 /* 8446 * We only support whole-LUN scope. The scope & type are ignored for 8447 * register, register and ignore existing key and clear. 8448 * We sometimes ignore scope and type on preempts too!! 8449 * Verify reservation type here as well. 8450 */ 8451 type = cdb->scope_type & SPR_TYPE_MASK; 8452 if ((cdb->action == SPRO_RESERVE) 8453 || (cdb->action == SPRO_RELEASE)) { 8454 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8455 ctl_set_invalid_field(/*ctsio*/ ctsio, 8456 /*sks_valid*/ 1, 8457 /*command*/ 1, 8458 /*field*/ 2, 8459 /*bit_valid*/ 1, 8460 /*bit*/ 4); 8461 ctl_done((union ctl_io *)ctsio); 8462 return (CTL_RETVAL_COMPLETE); 8463 } 8464 8465 if (type>8 || type==2 || type==4 || type==0) { 8466 ctl_set_invalid_field(/*ctsio*/ ctsio, 8467 /*sks_valid*/ 1, 8468 /*command*/ 1, 8469 /*field*/ 2, 8470 /*bit_valid*/ 1, 8471 /*bit*/ 0); 8472 ctl_done((union ctl_io *)ctsio); 8473 return (CTL_RETVAL_COMPLETE); 8474 } 8475 } 8476 8477 param_len = scsi_4btoul(cdb->length); 8478 8479 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8480 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8481 ctsio->kern_data_len = param_len; 8482 ctsio->kern_total_len = param_len; 8483 ctsio->kern_data_resid = 0; 8484 ctsio->kern_rel_offset = 0; 8485 ctsio->kern_sg_entries = 0; 8486 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8487 ctsio->be_move_done = ctl_config_move_done; 8488 ctl_datamove((union ctl_io *)ctsio); 8489 8490 return (CTL_RETVAL_COMPLETE); 8491 } 8492 8493 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8494 8495 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8496 res_key = scsi_8btou64(param->res_key.key); 8497 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8498 8499 /* 8500 * Validate the reservation key here except for SPRO_REG_IGNO 8501 * This must be done for all other service actions 8502 */ 8503 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8504 mtx_lock(&lun->lun_lock); 8505 if (lun->pr_keys[residx] != 0) { 8506 if (res_key != lun->pr_keys[residx]) { 8507 /* 8508 * The current key passed in doesn't match 8509 * the one the initiator previously 8510 * registered. 8511 */ 8512 mtx_unlock(&lun->lun_lock); 8513 free(ctsio->kern_data_ptr, M_CTL); 8514 ctl_set_reservation_conflict(ctsio); 8515 ctl_done((union ctl_io *)ctsio); 8516 return (CTL_RETVAL_COMPLETE); 8517 } 8518 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8519 /* 8520 * We are not registered 8521 */ 8522 mtx_unlock(&lun->lun_lock); 8523 free(ctsio->kern_data_ptr, M_CTL); 8524 ctl_set_reservation_conflict(ctsio); 8525 ctl_done((union ctl_io *)ctsio); 8526 return (CTL_RETVAL_COMPLETE); 8527 } else if (res_key != 0) { 8528 /* 8529 * We are not registered and trying to register but 8530 * the register key isn't zero. 8531 */ 8532 mtx_unlock(&lun->lun_lock); 8533 free(ctsio->kern_data_ptr, M_CTL); 8534 ctl_set_reservation_conflict(ctsio); 8535 ctl_done((union ctl_io *)ctsio); 8536 return (CTL_RETVAL_COMPLETE); 8537 } 8538 mtx_unlock(&lun->lun_lock); 8539 } 8540 8541 switch (cdb->action & SPRO_ACTION_MASK) { 8542 case SPRO_REGISTER: 8543 case SPRO_REG_IGNO: { 8544 8545#if 0 8546 printf("Registration received\n"); 8547#endif 8548 8549 /* 8550 * We don't support any of these options, as we report in 8551 * the read capabilities request (see 8552 * ctl_persistent_reserve_in(), above). 8553 */ 8554 if ((param->flags & SPR_SPEC_I_PT) 8555 || (param->flags & SPR_ALL_TG_PT) 8556 || (param->flags & SPR_APTPL)) { 8557 int bit_ptr; 8558 8559 if (param->flags & SPR_APTPL) 8560 bit_ptr = 0; 8561 else if (param->flags & SPR_ALL_TG_PT) 8562 bit_ptr = 2; 8563 else /* SPR_SPEC_I_PT */ 8564 bit_ptr = 3; 8565 8566 free(ctsio->kern_data_ptr, M_CTL); 8567 ctl_set_invalid_field(ctsio, 8568 /*sks_valid*/ 1, 8569 /*command*/ 0, 8570 /*field*/ 20, 8571 /*bit_valid*/ 1, 8572 /*bit*/ bit_ptr); 8573 ctl_done((union ctl_io *)ctsio); 8574 return (CTL_RETVAL_COMPLETE); 8575 } 8576 8577 mtx_lock(&lun->lun_lock); 8578 8579 /* 8580 * The initiator wants to clear the 8581 * key/unregister. 8582 */ 8583 if (sa_res_key == 0) { 8584 if ((res_key == 0 8585 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8586 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8587 && lun->pr_keys[residx] == 0)) { 8588 mtx_unlock(&lun->lun_lock); 8589 goto done; 8590 } 8591 8592 lun->pr_keys[residx] = 0; 8593 lun->pr_key_count--; 8594 8595 if (residx == lun->pr_res_idx) { 8596 lun->flags &= ~CTL_LUN_PR_RESERVED; 8597 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8598 8599 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8600 || lun->res_type == SPR_TYPE_EX_AC_RO) 8601 && lun->pr_key_count) { 8602 /* 8603 * If the reservation is a registrants 8604 * only type we need to generate a UA 8605 * for other registered inits. The 8606 * sense code should be RESERVATIONS 8607 * RELEASED 8608 */ 8609 8610 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8611 if (lun->pr_keys[ 8612 i + persis_offset] == 0) 8613 continue; 8614 lun->pending_ua[i] |= 8615 CTL_UA_RES_RELEASE; 8616 } 8617 } 8618 lun->res_type = 0; 8619 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8620 if (lun->pr_key_count==0) { 8621 lun->flags &= ~CTL_LUN_PR_RESERVED; 8622 lun->res_type = 0; 8623 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8624 } 8625 } 8626 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8627 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8628 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8629 persis_io.pr.pr_info.residx = residx; 8630 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8631 &persis_io, sizeof(persis_io), 0 )) > 8632 CTL_HA_STATUS_SUCCESS) { 8633 printf("CTL:Persis Out error returned from " 8634 "ctl_ha_msg_send %d\n", isc_retval); 8635 } 8636 } else /* sa_res_key != 0 */ { 8637 8638 /* 8639 * If we aren't registered currently then increment 8640 * the key count and set the registered flag. 8641 */ 8642 if (lun->pr_keys[residx] == 0) 8643 lun->pr_key_count++; 8644 lun->pr_keys[residx] = sa_res_key; 8645 8646 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8647 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8648 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8649 persis_io.pr.pr_info.residx = residx; 8650 memcpy(persis_io.pr.pr_info.sa_res_key, 8651 param->serv_act_res_key, 8652 sizeof(param->serv_act_res_key)); 8653 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8654 &persis_io, sizeof(persis_io), 0)) > 8655 CTL_HA_STATUS_SUCCESS) { 8656 printf("CTL:Persis Out error returned from " 8657 "ctl_ha_msg_send %d\n", isc_retval); 8658 } 8659 } 8660 lun->PRGeneration++; 8661 mtx_unlock(&lun->lun_lock); 8662 8663 break; 8664 } 8665 case SPRO_RESERVE: 8666#if 0 8667 printf("Reserve executed type %d\n", type); 8668#endif 8669 mtx_lock(&lun->lun_lock); 8670 if (lun->flags & CTL_LUN_PR_RESERVED) { 8671 /* 8672 * if this isn't the reservation holder and it's 8673 * not a "all registrants" type or if the type is 8674 * different then we have a conflict 8675 */ 8676 if ((lun->pr_res_idx != residx 8677 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8678 || lun->res_type != type) { 8679 mtx_unlock(&lun->lun_lock); 8680 free(ctsio->kern_data_ptr, M_CTL); 8681 ctl_set_reservation_conflict(ctsio); 8682 ctl_done((union ctl_io *)ctsio); 8683 return (CTL_RETVAL_COMPLETE); 8684 } 8685 mtx_unlock(&lun->lun_lock); 8686 } else /* create a reservation */ { 8687 /* 8688 * If it's not an "all registrants" type record 8689 * reservation holder 8690 */ 8691 if (type != SPR_TYPE_WR_EX_AR 8692 && type != SPR_TYPE_EX_AC_AR) 8693 lun->pr_res_idx = residx; /* Res holder */ 8694 else 8695 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8696 8697 lun->flags |= CTL_LUN_PR_RESERVED; 8698 lun->res_type = type; 8699 8700 mtx_unlock(&lun->lun_lock); 8701 8702 /* send msg to other side */ 8703 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8704 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8705 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8706 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8707 persis_io.pr.pr_info.res_type = type; 8708 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8709 &persis_io, sizeof(persis_io), 0)) > 8710 CTL_HA_STATUS_SUCCESS) { 8711 printf("CTL:Persis Out error returned from " 8712 "ctl_ha_msg_send %d\n", isc_retval); 8713 } 8714 } 8715 break; 8716 8717 case SPRO_RELEASE: 8718 mtx_lock(&lun->lun_lock); 8719 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8720 /* No reservation exists return good status */ 8721 mtx_unlock(&lun->lun_lock); 8722 goto done; 8723 } 8724 /* 8725 * Is this nexus a reservation holder? 8726 */ 8727 if (lun->pr_res_idx != residx 8728 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8729 /* 8730 * not a res holder return good status but 8731 * do nothing 8732 */ 8733 mtx_unlock(&lun->lun_lock); 8734 goto done; 8735 } 8736 8737 if (lun->res_type != type) { 8738 mtx_unlock(&lun->lun_lock); 8739 free(ctsio->kern_data_ptr, M_CTL); 8740 ctl_set_illegal_pr_release(ctsio); 8741 ctl_done((union ctl_io *)ctsio); 8742 return (CTL_RETVAL_COMPLETE); 8743 } 8744 8745 /* okay to release */ 8746 lun->flags &= ~CTL_LUN_PR_RESERVED; 8747 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8748 lun->res_type = 0; 8749 8750 /* 8751 * if this isn't an exclusive access 8752 * res generate UA for all other 8753 * registrants. 8754 */ 8755 if (type != SPR_TYPE_EX_AC 8756 && type != SPR_TYPE_WR_EX) { 8757 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8758 if (i == residx || 8759 lun->pr_keys[i + persis_offset] == 0) 8760 continue; 8761 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8762 } 8763 } 8764 mtx_unlock(&lun->lun_lock); 8765 /* Send msg to other side */ 8766 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8767 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8768 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8769 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8770 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8771 printf("CTL:Persis Out error returned from " 8772 "ctl_ha_msg_send %d\n", isc_retval); 8773 } 8774 break; 8775 8776 case SPRO_CLEAR: 8777 /* send msg to other side */ 8778 8779 mtx_lock(&lun->lun_lock); 8780 lun->flags &= ~CTL_LUN_PR_RESERVED; 8781 lun->res_type = 0; 8782 lun->pr_key_count = 0; 8783 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8784 8785 lun->pr_keys[residx] = 0; 8786 8787 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8788 if (lun->pr_keys[i] != 0) { 8789 if (!persis_offset && i < CTL_MAX_INITIATORS) 8790 lun->pending_ua[i] |= 8791 CTL_UA_RES_PREEMPT; 8792 else if (persis_offset && i >= persis_offset) 8793 lun->pending_ua[i-persis_offset] |= 8794 CTL_UA_RES_PREEMPT; 8795 8796 lun->pr_keys[i] = 0; 8797 } 8798 lun->PRGeneration++; 8799 mtx_unlock(&lun->lun_lock); 8800 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8801 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8802 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8803 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8804 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8805 printf("CTL:Persis Out error returned from " 8806 "ctl_ha_msg_send %d\n", isc_retval); 8807 } 8808 break; 8809 8810 case SPRO_PREEMPT: { 8811 int nretval; 8812 8813 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8814 residx, ctsio, cdb, param); 8815 if (nretval != 0) 8816 return (CTL_RETVAL_COMPLETE); 8817 break; 8818 } 8819 default: 8820 panic("Invalid PR type %x", cdb->action); 8821 } 8822 8823done: 8824 free(ctsio->kern_data_ptr, M_CTL); 8825 ctl_set_success(ctsio); 8826 ctl_done((union ctl_io *)ctsio); 8827 8828 return (retval); 8829} 8830 8831/* 8832 * This routine is for handling a message from the other SC pertaining to 8833 * persistent reserve out. All the error checking will have been done 8834 * so only perorming the action need be done here to keep the two 8835 * in sync. 8836 */ 8837static void 8838ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8839{ 8840 struct ctl_lun *lun; 8841 struct ctl_softc *softc; 8842 int i; 8843 uint32_t targ_lun; 8844 8845 softc = control_softc; 8846 8847 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8848 lun = softc->ctl_luns[targ_lun]; 8849 mtx_lock(&lun->lun_lock); 8850 switch(msg->pr.pr_info.action) { 8851 case CTL_PR_REG_KEY: 8852 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8853 lun->pr_key_count++; 8854 lun->pr_keys[msg->pr.pr_info.residx] = 8855 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8856 lun->PRGeneration++; 8857 break; 8858 8859 case CTL_PR_UNREG_KEY: 8860 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8861 lun->pr_key_count--; 8862 8863 /* XXX Need to see if the reservation has been released */ 8864 /* if so do we need to generate UA? */ 8865 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8866 lun->flags &= ~CTL_LUN_PR_RESERVED; 8867 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8868 8869 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8870 || lun->res_type == SPR_TYPE_EX_AC_RO) 8871 && lun->pr_key_count) { 8872 /* 8873 * If the reservation is a registrants 8874 * only type we need to generate a UA 8875 * for other registered inits. The 8876 * sense code should be RESERVATIONS 8877 * RELEASED 8878 */ 8879 8880 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8881 if (lun->pr_keys[i+ 8882 persis_offset] == 0) 8883 continue; 8884 8885 lun->pending_ua[i] |= 8886 CTL_UA_RES_RELEASE; 8887 } 8888 } 8889 lun->res_type = 0; 8890 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8891 if (lun->pr_key_count==0) { 8892 lun->flags &= ~CTL_LUN_PR_RESERVED; 8893 lun->res_type = 0; 8894 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8895 } 8896 } 8897 lun->PRGeneration++; 8898 break; 8899 8900 case CTL_PR_RESERVE: 8901 lun->flags |= CTL_LUN_PR_RESERVED; 8902 lun->res_type = msg->pr.pr_info.res_type; 8903 lun->pr_res_idx = msg->pr.pr_info.residx; 8904 8905 break; 8906 8907 case CTL_PR_RELEASE: 8908 /* 8909 * if this isn't an exclusive access res generate UA for all 8910 * other registrants. 8911 */ 8912 if (lun->res_type != SPR_TYPE_EX_AC 8913 && lun->res_type != SPR_TYPE_WR_EX) { 8914 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8915 if (lun->pr_keys[i+persis_offset] != 0) 8916 lun->pending_ua[i] |= 8917 CTL_UA_RES_RELEASE; 8918 } 8919 8920 lun->flags &= ~CTL_LUN_PR_RESERVED; 8921 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8922 lun->res_type = 0; 8923 break; 8924 8925 case CTL_PR_PREEMPT: 8926 ctl_pro_preempt_other(lun, msg); 8927 break; 8928 case CTL_PR_CLEAR: 8929 lun->flags &= ~CTL_LUN_PR_RESERVED; 8930 lun->res_type = 0; 8931 lun->pr_key_count = 0; 8932 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8933 8934 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8935 if (lun->pr_keys[i] == 0) 8936 continue; 8937 if (!persis_offset 8938 && i < CTL_MAX_INITIATORS) 8939 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8940 else if (persis_offset 8941 && i >= persis_offset) 8942 lun->pending_ua[i-persis_offset] |= 8943 CTL_UA_RES_PREEMPT; 8944 lun->pr_keys[i] = 0; 8945 } 8946 lun->PRGeneration++; 8947 break; 8948 } 8949 8950 mtx_unlock(&lun->lun_lock); 8951} 8952 8953int 8954ctl_read_write(struct ctl_scsiio *ctsio) 8955{ 8956 struct ctl_lun *lun; 8957 struct ctl_lba_len_flags *lbalen; 8958 uint64_t lba; 8959 uint32_t num_blocks; 8960 int flags, retval; 8961 int isread; 8962 8963 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8964 8965 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8966 8967 flags = 0; 8968 retval = CTL_RETVAL_COMPLETE; 8969 8970 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8971 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8972 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8973 uint32_t residx; 8974 8975 /* 8976 * XXX KDM need a lock here. 8977 */ 8978 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8979 if ((lun->res_type == SPR_TYPE_EX_AC 8980 && residx != lun->pr_res_idx) 8981 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8982 || lun->res_type == SPR_TYPE_EX_AC_AR) 8983 && lun->pr_keys[residx] == 0)) { 8984 ctl_set_reservation_conflict(ctsio); 8985 ctl_done((union ctl_io *)ctsio); 8986 return (CTL_RETVAL_COMPLETE); 8987 } 8988 } 8989 8990 switch (ctsio->cdb[0]) { 8991 case READ_6: 8992 case WRITE_6: { 8993 struct scsi_rw_6 *cdb; 8994 8995 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8996 8997 lba = scsi_3btoul(cdb->addr); 8998 /* only 5 bits are valid in the most significant address byte */ 8999 lba &= 0x1fffff; 9000 num_blocks = cdb->length; 9001 /* 9002 * This is correct according to SBC-2. 9003 */ 9004 if (num_blocks == 0) 9005 num_blocks = 256; 9006 break; 9007 } 9008 case READ_10: 9009 case WRITE_10: { 9010 struct scsi_rw_10 *cdb; 9011 9012 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9013 if (cdb->byte2 & SRW10_FUA) 9014 flags |= CTL_LLF_FUA; 9015 if (cdb->byte2 & SRW10_DPO) 9016 flags |= CTL_LLF_DPO; 9017 lba = scsi_4btoul(cdb->addr); 9018 num_blocks = scsi_2btoul(cdb->length); 9019 break; 9020 } 9021 case WRITE_VERIFY_10: { 9022 struct scsi_write_verify_10 *cdb; 9023 9024 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9025 flags |= CTL_LLF_FUA; 9026 if (cdb->byte2 & SWV_DPO) 9027 flags |= CTL_LLF_DPO; 9028 lba = scsi_4btoul(cdb->addr); 9029 num_blocks = scsi_2btoul(cdb->length); 9030 break; 9031 } 9032 case READ_12: 9033 case WRITE_12: { 9034 struct scsi_rw_12 *cdb; 9035 9036 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9037 if (cdb->byte2 & SRW12_FUA) 9038 flags |= CTL_LLF_FUA; 9039 if (cdb->byte2 & SRW12_DPO) 9040 flags |= CTL_LLF_DPO; 9041 lba = scsi_4btoul(cdb->addr); 9042 num_blocks = scsi_4btoul(cdb->length); 9043 break; 9044 } 9045 case WRITE_VERIFY_12: { 9046 struct scsi_write_verify_12 *cdb; 9047 9048 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9049 flags |= CTL_LLF_FUA; 9050 if (cdb->byte2 & SWV_DPO) 9051 flags |= CTL_LLF_DPO; 9052 lba = scsi_4btoul(cdb->addr); 9053 num_blocks = scsi_4btoul(cdb->length); 9054 break; 9055 } 9056 case READ_16: 9057 case WRITE_16: { 9058 struct scsi_rw_16 *cdb; 9059 9060 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9061 if (cdb->byte2 & SRW12_FUA) 9062 flags |= CTL_LLF_FUA; 9063 if (cdb->byte2 & SRW12_DPO) 9064 flags |= CTL_LLF_DPO; 9065 lba = scsi_8btou64(cdb->addr); 9066 num_blocks = scsi_4btoul(cdb->length); 9067 break; 9068 } 9069 case WRITE_ATOMIC_16: { 9070 struct scsi_rw_16 *cdb; 9071 9072 if (lun->be_lun->atomicblock == 0) { 9073 ctl_set_invalid_opcode(ctsio); 9074 ctl_done((union ctl_io *)ctsio); 9075 return (CTL_RETVAL_COMPLETE); 9076 } 9077 9078 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9079 if (cdb->byte2 & SRW12_FUA) 9080 flags |= CTL_LLF_FUA; 9081 if (cdb->byte2 & SRW12_DPO) 9082 flags |= CTL_LLF_DPO; 9083 lba = scsi_8btou64(cdb->addr); 9084 num_blocks = scsi_4btoul(cdb->length); 9085 if (num_blocks > lun->be_lun->atomicblock) { 9086 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9087 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9088 /*bit*/ 0); 9089 ctl_done((union ctl_io *)ctsio); 9090 return (CTL_RETVAL_COMPLETE); 9091 } 9092 break; 9093 } 9094 case WRITE_VERIFY_16: { 9095 struct scsi_write_verify_16 *cdb; 9096 9097 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9098 flags |= CTL_LLF_FUA; 9099 if (cdb->byte2 & SWV_DPO) 9100 flags |= CTL_LLF_DPO; 9101 lba = scsi_8btou64(cdb->addr); 9102 num_blocks = scsi_4btoul(cdb->length); 9103 break; 9104 } 9105 default: 9106 /* 9107 * We got a command we don't support. This shouldn't 9108 * happen, commands should be filtered out above us. 9109 */ 9110 ctl_set_invalid_opcode(ctsio); 9111 ctl_done((union ctl_io *)ctsio); 9112 9113 return (CTL_RETVAL_COMPLETE); 9114 break; /* NOTREACHED */ 9115 } 9116 9117 /* 9118 * The first check is to make sure we're in bounds, the second 9119 * check is to catch wrap-around problems. If the lba + num blocks 9120 * is less than the lba, then we've wrapped around and the block 9121 * range is invalid anyway. 9122 */ 9123 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9124 || ((lba + num_blocks) < lba)) { 9125 ctl_set_lba_out_of_range(ctsio); 9126 ctl_done((union ctl_io *)ctsio); 9127 return (CTL_RETVAL_COMPLETE); 9128 } 9129 9130 /* 9131 * According to SBC-3, a transfer length of 0 is not an error. 9132 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9133 * translates to 256 blocks for those commands. 9134 */ 9135 if (num_blocks == 0) { 9136 ctl_set_success(ctsio); 9137 ctl_done((union ctl_io *)ctsio); 9138 return (CTL_RETVAL_COMPLETE); 9139 } 9140 9141 /* Set FUA and/or DPO if caches are disabled. */ 9142 if (isread) { 9143 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9144 SCP_RCD) != 0) 9145 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9146 } else { 9147 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9148 SCP_WCE) == 0) 9149 flags |= CTL_LLF_FUA; 9150 } 9151 9152 lbalen = (struct ctl_lba_len_flags *) 9153 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9154 lbalen->lba = lba; 9155 lbalen->len = num_blocks; 9156 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9157 9158 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9159 ctsio->kern_rel_offset = 0; 9160 9161 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9162 9163 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9164 9165 return (retval); 9166} 9167 9168static int 9169ctl_cnw_cont(union ctl_io *io) 9170{ 9171 struct ctl_scsiio *ctsio; 9172 struct ctl_lun *lun; 9173 struct ctl_lba_len_flags *lbalen; 9174 int retval; 9175 9176 ctsio = &io->scsiio; 9177 ctsio->io_hdr.status = CTL_STATUS_NONE; 9178 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9179 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9180 lbalen = (struct ctl_lba_len_flags *) 9181 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9182 lbalen->flags &= ~CTL_LLF_COMPARE; 9183 lbalen->flags |= CTL_LLF_WRITE; 9184 9185 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9186 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9187 return (retval); 9188} 9189 9190int 9191ctl_cnw(struct ctl_scsiio *ctsio) 9192{ 9193 struct ctl_lun *lun; 9194 struct ctl_lba_len_flags *lbalen; 9195 uint64_t lba; 9196 uint32_t num_blocks; 9197 int flags, retval; 9198 9199 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9200 9201 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9202 9203 flags = 0; 9204 retval = CTL_RETVAL_COMPLETE; 9205 9206 switch (ctsio->cdb[0]) { 9207 case COMPARE_AND_WRITE: { 9208 struct scsi_compare_and_write *cdb; 9209 9210 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9211 if (cdb->byte2 & SRW10_FUA) 9212 flags |= CTL_LLF_FUA; 9213 if (cdb->byte2 & SRW10_DPO) 9214 flags |= CTL_LLF_DPO; 9215 lba = scsi_8btou64(cdb->addr); 9216 num_blocks = cdb->length; 9217 break; 9218 } 9219 default: 9220 /* 9221 * We got a command we don't support. This shouldn't 9222 * happen, commands should be filtered out above us. 9223 */ 9224 ctl_set_invalid_opcode(ctsio); 9225 ctl_done((union ctl_io *)ctsio); 9226 9227 return (CTL_RETVAL_COMPLETE); 9228 break; /* NOTREACHED */ 9229 } 9230 9231 /* 9232 * The first check is to make sure we're in bounds, the second 9233 * check is to catch wrap-around problems. If the lba + num blocks 9234 * is less than the lba, then we've wrapped around and the block 9235 * range is invalid anyway. 9236 */ 9237 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9238 || ((lba + num_blocks) < lba)) { 9239 ctl_set_lba_out_of_range(ctsio); 9240 ctl_done((union ctl_io *)ctsio); 9241 return (CTL_RETVAL_COMPLETE); 9242 } 9243 9244 /* 9245 * According to SBC-3, a transfer length of 0 is not an error. 9246 */ 9247 if (num_blocks == 0) { 9248 ctl_set_success(ctsio); 9249 ctl_done((union ctl_io *)ctsio); 9250 return (CTL_RETVAL_COMPLETE); 9251 } 9252 9253 /* Set FUA if write cache is disabled. */ 9254 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9255 SCP_WCE) == 0) 9256 flags |= CTL_LLF_FUA; 9257 9258 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9259 ctsio->kern_rel_offset = 0; 9260 9261 /* 9262 * Set the IO_CONT flag, so that if this I/O gets passed to 9263 * ctl_data_submit_done(), it'll get passed back to 9264 * ctl_ctl_cnw_cont() for further processing. 9265 */ 9266 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9267 ctsio->io_cont = ctl_cnw_cont; 9268 9269 lbalen = (struct ctl_lba_len_flags *) 9270 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9271 lbalen->lba = lba; 9272 lbalen->len = num_blocks; 9273 lbalen->flags = CTL_LLF_COMPARE | flags; 9274 9275 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9276 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9277 return (retval); 9278} 9279 9280int 9281ctl_verify(struct ctl_scsiio *ctsio) 9282{ 9283 struct ctl_lun *lun; 9284 struct ctl_lba_len_flags *lbalen; 9285 uint64_t lba; 9286 uint32_t num_blocks; 9287 int bytchk, flags; 9288 int retval; 9289 9290 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9291 9292 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9293 9294 bytchk = 0; 9295 flags = CTL_LLF_FUA; 9296 retval = CTL_RETVAL_COMPLETE; 9297 9298 switch (ctsio->cdb[0]) { 9299 case VERIFY_10: { 9300 struct scsi_verify_10 *cdb; 9301 9302 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9303 if (cdb->byte2 & SVFY_BYTCHK) 9304 bytchk = 1; 9305 if (cdb->byte2 & SVFY_DPO) 9306 flags |= CTL_LLF_DPO; 9307 lba = scsi_4btoul(cdb->addr); 9308 num_blocks = scsi_2btoul(cdb->length); 9309 break; 9310 } 9311 case VERIFY_12: { 9312 struct scsi_verify_12 *cdb; 9313 9314 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9315 if (cdb->byte2 & SVFY_BYTCHK) 9316 bytchk = 1; 9317 if (cdb->byte2 & SVFY_DPO) 9318 flags |= CTL_LLF_DPO; 9319 lba = scsi_4btoul(cdb->addr); 9320 num_blocks = scsi_4btoul(cdb->length); 9321 break; 9322 } 9323 case VERIFY_16: { 9324 struct scsi_rw_16 *cdb; 9325 9326 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9327 if (cdb->byte2 & SVFY_BYTCHK) 9328 bytchk = 1; 9329 if (cdb->byte2 & SVFY_DPO) 9330 flags |= CTL_LLF_DPO; 9331 lba = scsi_8btou64(cdb->addr); 9332 num_blocks = scsi_4btoul(cdb->length); 9333 break; 9334 } 9335 default: 9336 /* 9337 * We got a command we don't support. This shouldn't 9338 * happen, commands should be filtered out above us. 9339 */ 9340 ctl_set_invalid_opcode(ctsio); 9341 ctl_done((union ctl_io *)ctsio); 9342 return (CTL_RETVAL_COMPLETE); 9343 } 9344 9345 /* 9346 * The first check is to make sure we're in bounds, the second 9347 * check is to catch wrap-around problems. If the lba + num blocks 9348 * is less than the lba, then we've wrapped around and the block 9349 * range is invalid anyway. 9350 */ 9351 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9352 || ((lba + num_blocks) < lba)) { 9353 ctl_set_lba_out_of_range(ctsio); 9354 ctl_done((union ctl_io *)ctsio); 9355 return (CTL_RETVAL_COMPLETE); 9356 } 9357 9358 /* 9359 * According to SBC-3, a transfer length of 0 is not an error. 9360 */ 9361 if (num_blocks == 0) { 9362 ctl_set_success(ctsio); 9363 ctl_done((union ctl_io *)ctsio); 9364 return (CTL_RETVAL_COMPLETE); 9365 } 9366 9367 lbalen = (struct ctl_lba_len_flags *) 9368 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9369 lbalen->lba = lba; 9370 lbalen->len = num_blocks; 9371 if (bytchk) { 9372 lbalen->flags = CTL_LLF_COMPARE | flags; 9373 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9374 } else { 9375 lbalen->flags = CTL_LLF_VERIFY | flags; 9376 ctsio->kern_total_len = 0; 9377 } 9378 ctsio->kern_rel_offset = 0; 9379 9380 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9381 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9382 return (retval); 9383} 9384 9385int 9386ctl_report_luns(struct ctl_scsiio *ctsio) 9387{ 9388 struct scsi_report_luns *cdb; 9389 struct scsi_report_luns_data *lun_data; 9390 struct ctl_lun *lun, *request_lun; 9391 int num_luns, retval; 9392 uint32_t alloc_len, lun_datalen; 9393 int num_filled, well_known; 9394 uint32_t initidx, targ_lun_id, lun_id; 9395 9396 retval = CTL_RETVAL_COMPLETE; 9397 well_known = 0; 9398 9399 cdb = (struct scsi_report_luns *)ctsio->cdb; 9400 9401 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9402 9403 mtx_lock(&control_softc->ctl_lock); 9404 num_luns = control_softc->num_luns; 9405 mtx_unlock(&control_softc->ctl_lock); 9406 9407 switch (cdb->select_report) { 9408 case RPL_REPORT_DEFAULT: 9409 case RPL_REPORT_ALL: 9410 break; 9411 case RPL_REPORT_WELLKNOWN: 9412 well_known = 1; 9413 num_luns = 0; 9414 break; 9415 default: 9416 ctl_set_invalid_field(ctsio, 9417 /*sks_valid*/ 1, 9418 /*command*/ 1, 9419 /*field*/ 2, 9420 /*bit_valid*/ 0, 9421 /*bit*/ 0); 9422 ctl_done((union ctl_io *)ctsio); 9423 return (retval); 9424 break; /* NOTREACHED */ 9425 } 9426 9427 alloc_len = scsi_4btoul(cdb->length); 9428 /* 9429 * The initiator has to allocate at least 16 bytes for this request, 9430 * so he can at least get the header and the first LUN. Otherwise 9431 * we reject the request (per SPC-3 rev 14, section 6.21). 9432 */ 9433 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9434 sizeof(struct scsi_report_luns_lundata))) { 9435 ctl_set_invalid_field(ctsio, 9436 /*sks_valid*/ 1, 9437 /*command*/ 1, 9438 /*field*/ 6, 9439 /*bit_valid*/ 0, 9440 /*bit*/ 0); 9441 ctl_done((union ctl_io *)ctsio); 9442 return (retval); 9443 } 9444 9445 request_lun = (struct ctl_lun *) 9446 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9447 9448 lun_datalen = sizeof(*lun_data) + 9449 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9450 9451 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9452 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9453 ctsio->kern_sg_entries = 0; 9454 9455 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9456 9457 mtx_lock(&control_softc->ctl_lock); 9458 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9459 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9460 if (lun_id >= CTL_MAX_LUNS) 9461 continue; 9462 lun = control_softc->ctl_luns[lun_id]; 9463 if (lun == NULL) 9464 continue; 9465 9466 if (targ_lun_id <= 0xff) { 9467 /* 9468 * Peripheral addressing method, bus number 0. 9469 */ 9470 lun_data->luns[num_filled].lundata[0] = 9471 RPL_LUNDATA_ATYP_PERIPH; 9472 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9473 num_filled++; 9474 } else if (targ_lun_id <= 0x3fff) { 9475 /* 9476 * Flat addressing method. 9477 */ 9478 lun_data->luns[num_filled].lundata[0] = 9479 RPL_LUNDATA_ATYP_FLAT | 9480 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9481#ifdef OLDCTLHEADERS 9482 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9483 (targ_lun_id & SRLD_BUS_LUN_MASK); 9484#endif 9485 lun_data->luns[num_filled].lundata[1] = 9486#ifdef OLDCTLHEADERS 9487 targ_lun_id >> SRLD_BUS_LUN_BITS; 9488#endif 9489 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9490 num_filled++; 9491 } else { 9492 printf("ctl_report_luns: bogus LUN number %jd, " 9493 "skipping\n", (intmax_t)targ_lun_id); 9494 } 9495 /* 9496 * According to SPC-3, rev 14 section 6.21: 9497 * 9498 * "The execution of a REPORT LUNS command to any valid and 9499 * installed logical unit shall clear the REPORTED LUNS DATA 9500 * HAS CHANGED unit attention condition for all logical 9501 * units of that target with respect to the requesting 9502 * initiator. A valid and installed logical unit is one 9503 * having a PERIPHERAL QUALIFIER of 000b in the standard 9504 * INQUIRY data (see 6.4.2)." 9505 * 9506 * If request_lun is NULL, the LUN this report luns command 9507 * was issued to is either disabled or doesn't exist. In that 9508 * case, we shouldn't clear any pending lun change unit 9509 * attention. 9510 */ 9511 if (request_lun != NULL) { 9512 mtx_lock(&lun->lun_lock); 9513 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9514 mtx_unlock(&lun->lun_lock); 9515 } 9516 } 9517 mtx_unlock(&control_softc->ctl_lock); 9518 9519 /* 9520 * It's quite possible that we've returned fewer LUNs than we allocated 9521 * space for. Trim it. 9522 */ 9523 lun_datalen = sizeof(*lun_data) + 9524 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9525 9526 if (lun_datalen < alloc_len) { 9527 ctsio->residual = alloc_len - lun_datalen; 9528 ctsio->kern_data_len = lun_datalen; 9529 ctsio->kern_total_len = lun_datalen; 9530 } else { 9531 ctsio->residual = 0; 9532 ctsio->kern_data_len = alloc_len; 9533 ctsio->kern_total_len = alloc_len; 9534 } 9535 ctsio->kern_data_resid = 0; 9536 ctsio->kern_rel_offset = 0; 9537 ctsio->kern_sg_entries = 0; 9538 9539 /* 9540 * We set this to the actual data length, regardless of how much 9541 * space we actually have to return results. If the user looks at 9542 * this value, he'll know whether or not he allocated enough space 9543 * and reissue the command if necessary. We don't support well 9544 * known logical units, so if the user asks for that, return none. 9545 */ 9546 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9547 9548 /* 9549 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9550 * this request. 9551 */ 9552 ctsio->scsi_status = SCSI_STATUS_OK; 9553 9554 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9555 ctsio->be_move_done = ctl_config_move_done; 9556 ctl_datamove((union ctl_io *)ctsio); 9557 9558 return (retval); 9559} 9560 9561int 9562ctl_request_sense(struct ctl_scsiio *ctsio) 9563{ 9564 struct scsi_request_sense *cdb; 9565 struct scsi_sense_data *sense_ptr; 9566 struct ctl_lun *lun; 9567 uint32_t initidx; 9568 int have_error; 9569 scsi_sense_data_type sense_format; 9570 9571 cdb = (struct scsi_request_sense *)ctsio->cdb; 9572 9573 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9574 9575 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9576 9577 /* 9578 * Determine which sense format the user wants. 9579 */ 9580 if (cdb->byte2 & SRS_DESC) 9581 sense_format = SSD_TYPE_DESC; 9582 else 9583 sense_format = SSD_TYPE_FIXED; 9584 9585 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9586 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9587 ctsio->kern_sg_entries = 0; 9588 9589 /* 9590 * struct scsi_sense_data, which is currently set to 256 bytes, is 9591 * larger than the largest allowed value for the length field in the 9592 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9593 */ 9594 ctsio->residual = 0; 9595 ctsio->kern_data_len = cdb->length; 9596 ctsio->kern_total_len = cdb->length; 9597 9598 ctsio->kern_data_resid = 0; 9599 ctsio->kern_rel_offset = 0; 9600 ctsio->kern_sg_entries = 0; 9601 9602 /* 9603 * If we don't have a LUN, we don't have any pending sense. 9604 */ 9605 if (lun == NULL) 9606 goto no_sense; 9607 9608 have_error = 0; 9609 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9610 /* 9611 * Check for pending sense, and then for pending unit attentions. 9612 * Pending sense gets returned first, then pending unit attentions. 9613 */ 9614 mtx_lock(&lun->lun_lock); 9615#ifdef CTL_WITH_CA 9616 if (ctl_is_set(lun->have_ca, initidx)) { 9617 scsi_sense_data_type stored_format; 9618 9619 /* 9620 * Check to see which sense format was used for the stored 9621 * sense data. 9622 */ 9623 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9624 9625 /* 9626 * If the user requested a different sense format than the 9627 * one we stored, then we need to convert it to the other 9628 * format. If we're going from descriptor to fixed format 9629 * sense data, we may lose things in translation, depending 9630 * on what options were used. 9631 * 9632 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9633 * for some reason we'll just copy it out as-is. 9634 */ 9635 if ((stored_format == SSD_TYPE_FIXED) 9636 && (sense_format == SSD_TYPE_DESC)) 9637 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9638 &lun->pending_sense[initidx], 9639 (struct scsi_sense_data_desc *)sense_ptr); 9640 else if ((stored_format == SSD_TYPE_DESC) 9641 && (sense_format == SSD_TYPE_FIXED)) 9642 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9643 &lun->pending_sense[initidx], 9644 (struct scsi_sense_data_fixed *)sense_ptr); 9645 else 9646 memcpy(sense_ptr, &lun->pending_sense[initidx], 9647 ctl_min(sizeof(*sense_ptr), 9648 sizeof(lun->pending_sense[initidx]))); 9649 9650 ctl_clear_mask(lun->have_ca, initidx); 9651 have_error = 1; 9652 } else 9653#endif 9654 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9655 ctl_ua_type ua_type; 9656 9657 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9658 sense_ptr, sense_format); 9659 if (ua_type != CTL_UA_NONE) 9660 have_error = 1; 9661 } 9662 mtx_unlock(&lun->lun_lock); 9663 9664 /* 9665 * We already have a pending error, return it. 9666 */ 9667 if (have_error != 0) { 9668 /* 9669 * We report the SCSI status as OK, since the status of the 9670 * request sense command itself is OK. 9671 */ 9672 ctsio->scsi_status = SCSI_STATUS_OK; 9673 9674 /* 9675 * We report 0 for the sense length, because we aren't doing 9676 * autosense in this case. We're reporting sense as 9677 * parameter data. 9678 */ 9679 ctsio->sense_len = 0; 9680 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9681 ctsio->be_move_done = ctl_config_move_done; 9682 ctl_datamove((union ctl_io *)ctsio); 9683 9684 return (CTL_RETVAL_COMPLETE); 9685 } 9686 9687no_sense: 9688 9689 /* 9690 * No sense information to report, so we report that everything is 9691 * okay. 9692 */ 9693 ctl_set_sense_data(sense_ptr, 9694 lun, 9695 sense_format, 9696 /*current_error*/ 1, 9697 /*sense_key*/ SSD_KEY_NO_SENSE, 9698 /*asc*/ 0x00, 9699 /*ascq*/ 0x00, 9700 SSD_ELEM_NONE); 9701 9702 ctsio->scsi_status = SCSI_STATUS_OK; 9703 9704 /* 9705 * We report 0 for the sense length, because we aren't doing 9706 * autosense in this case. We're reporting sense as parameter data. 9707 */ 9708 ctsio->sense_len = 0; 9709 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9710 ctsio->be_move_done = ctl_config_move_done; 9711 ctl_datamove((union ctl_io *)ctsio); 9712 9713 return (CTL_RETVAL_COMPLETE); 9714} 9715 9716int 9717ctl_tur(struct ctl_scsiio *ctsio) 9718{ 9719 struct ctl_lun *lun; 9720 9721 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9722 9723 CTL_DEBUG_PRINT(("ctl_tur\n")); 9724 9725 if (lun == NULL) 9726 return (EINVAL); 9727 9728 ctsio->scsi_status = SCSI_STATUS_OK; 9729 ctsio->io_hdr.status = CTL_SUCCESS; 9730 9731 ctl_done((union ctl_io *)ctsio); 9732 9733 return (CTL_RETVAL_COMPLETE); 9734} 9735 9736#ifdef notyet 9737static int 9738ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9739{ 9740 9741} 9742#endif 9743 9744static int 9745ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9746{ 9747 struct scsi_vpd_supported_pages *pages; 9748 int sup_page_size; 9749 struct ctl_lun *lun; 9750 9751 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9752 9753 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9754 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9755 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9756 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9757 ctsio->kern_sg_entries = 0; 9758 9759 if (sup_page_size < alloc_len) { 9760 ctsio->residual = alloc_len - sup_page_size; 9761 ctsio->kern_data_len = sup_page_size; 9762 ctsio->kern_total_len = sup_page_size; 9763 } else { 9764 ctsio->residual = 0; 9765 ctsio->kern_data_len = alloc_len; 9766 ctsio->kern_total_len = alloc_len; 9767 } 9768 ctsio->kern_data_resid = 0; 9769 ctsio->kern_rel_offset = 0; 9770 ctsio->kern_sg_entries = 0; 9771 9772 /* 9773 * The control device is always connected. The disk device, on the 9774 * other hand, may not be online all the time. Need to change this 9775 * to figure out whether the disk device is actually online or not. 9776 */ 9777 if (lun != NULL) 9778 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9779 lun->be_lun->lun_type; 9780 else 9781 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9782 9783 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9784 /* Supported VPD pages */ 9785 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9786 /* Serial Number */ 9787 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9788 /* Device Identification */ 9789 pages->page_list[2] = SVPD_DEVICE_ID; 9790 /* Extended INQUIRY Data */ 9791 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9792 /* Mode Page Policy */ 9793 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9794 /* SCSI Ports */ 9795 pages->page_list[5] = SVPD_SCSI_PORTS; 9796 /* Third-party Copy */ 9797 pages->page_list[6] = SVPD_SCSI_TPC; 9798 /* Block limits */ 9799 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9800 /* Block Device Characteristics */ 9801 pages->page_list[8] = SVPD_BDC; 9802 /* Logical Block Provisioning */ 9803 pages->page_list[9] = SVPD_LBP; 9804 9805 ctsio->scsi_status = SCSI_STATUS_OK; 9806 9807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9808 ctsio->be_move_done = ctl_config_move_done; 9809 ctl_datamove((union ctl_io *)ctsio); 9810 9811 return (CTL_RETVAL_COMPLETE); 9812} 9813 9814static int 9815ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9816{ 9817 struct scsi_vpd_unit_serial_number *sn_ptr; 9818 struct ctl_lun *lun; 9819 9820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9821 9822 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9823 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9824 ctsio->kern_sg_entries = 0; 9825 9826 if (sizeof(*sn_ptr) < alloc_len) { 9827 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9828 ctsio->kern_data_len = sizeof(*sn_ptr); 9829 ctsio->kern_total_len = sizeof(*sn_ptr); 9830 } else { 9831 ctsio->residual = 0; 9832 ctsio->kern_data_len = alloc_len; 9833 ctsio->kern_total_len = alloc_len; 9834 } 9835 ctsio->kern_data_resid = 0; 9836 ctsio->kern_rel_offset = 0; 9837 ctsio->kern_sg_entries = 0; 9838 9839 /* 9840 * The control device is always connected. The disk device, on the 9841 * other hand, may not be online all the time. Need to change this 9842 * to figure out whether the disk device is actually online or not. 9843 */ 9844 if (lun != NULL) 9845 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9846 lun->be_lun->lun_type; 9847 else 9848 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9849 9850 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9851 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9852 /* 9853 * If we don't have a LUN, we just leave the serial number as 9854 * all spaces. 9855 */ 9856 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9857 if (lun != NULL) { 9858 strncpy((char *)sn_ptr->serial_num, 9859 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9860 } 9861 ctsio->scsi_status = SCSI_STATUS_OK; 9862 9863 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9864 ctsio->be_move_done = ctl_config_move_done; 9865 ctl_datamove((union ctl_io *)ctsio); 9866 9867 return (CTL_RETVAL_COMPLETE); 9868} 9869 9870 9871static int 9872ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9873{ 9874 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9875 struct ctl_lun *lun; 9876 int data_len; 9877 9878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9879 9880 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9881 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9882 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9883 ctsio->kern_sg_entries = 0; 9884 9885 if (data_len < alloc_len) { 9886 ctsio->residual = alloc_len - data_len; 9887 ctsio->kern_data_len = data_len; 9888 ctsio->kern_total_len = data_len; 9889 } else { 9890 ctsio->residual = 0; 9891 ctsio->kern_data_len = alloc_len; 9892 ctsio->kern_total_len = alloc_len; 9893 } 9894 ctsio->kern_data_resid = 0; 9895 ctsio->kern_rel_offset = 0; 9896 ctsio->kern_sg_entries = 0; 9897 9898 /* 9899 * The control device is always connected. The disk device, on the 9900 * other hand, may not be online all the time. 9901 */ 9902 if (lun != NULL) 9903 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9904 lun->be_lun->lun_type; 9905 else 9906 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9907 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9908 eid_ptr->page_length = data_len - 4; 9909 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9910 eid_ptr->flags3 = SVPD_EID_V_SUP; 9911 9912 ctsio->scsi_status = SCSI_STATUS_OK; 9913 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9914 ctsio->be_move_done = ctl_config_move_done; 9915 ctl_datamove((union ctl_io *)ctsio); 9916 9917 return (CTL_RETVAL_COMPLETE); 9918} 9919 9920static int 9921ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9922{ 9923 struct scsi_vpd_mode_page_policy *mpp_ptr; 9924 struct ctl_lun *lun; 9925 int data_len; 9926 9927 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9928 9929 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9930 sizeof(struct scsi_vpd_mode_page_policy_descr); 9931 9932 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9933 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9934 ctsio->kern_sg_entries = 0; 9935 9936 if (data_len < alloc_len) { 9937 ctsio->residual = alloc_len - data_len; 9938 ctsio->kern_data_len = data_len; 9939 ctsio->kern_total_len = data_len; 9940 } else { 9941 ctsio->residual = 0; 9942 ctsio->kern_data_len = alloc_len; 9943 ctsio->kern_total_len = alloc_len; 9944 } 9945 ctsio->kern_data_resid = 0; 9946 ctsio->kern_rel_offset = 0; 9947 ctsio->kern_sg_entries = 0; 9948 9949 /* 9950 * The control device is always connected. The disk device, on the 9951 * other hand, may not be online all the time. 9952 */ 9953 if (lun != NULL) 9954 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9955 lun->be_lun->lun_type; 9956 else 9957 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9958 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9959 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9960 mpp_ptr->descr[0].page_code = 0x3f; 9961 mpp_ptr->descr[0].subpage_code = 0xff; 9962 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9963 9964 ctsio->scsi_status = SCSI_STATUS_OK; 9965 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9966 ctsio->be_move_done = ctl_config_move_done; 9967 ctl_datamove((union ctl_io *)ctsio); 9968 9969 return (CTL_RETVAL_COMPLETE); 9970} 9971 9972static int 9973ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9974{ 9975 struct scsi_vpd_device_id *devid_ptr; 9976 struct scsi_vpd_id_descriptor *desc; 9977 struct ctl_softc *ctl_softc; 9978 struct ctl_lun *lun; 9979 struct ctl_port *port; 9980 int data_len; 9981 uint8_t proto; 9982 9983 ctl_softc = control_softc; 9984 9985 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9986 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9987 9988 data_len = sizeof(struct scsi_vpd_device_id) + 9989 sizeof(struct scsi_vpd_id_descriptor) + 9990 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9991 sizeof(struct scsi_vpd_id_descriptor) + 9992 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9993 if (lun && lun->lun_devid) 9994 data_len += lun->lun_devid->len; 9995 if (port->port_devid) 9996 data_len += port->port_devid->len; 9997 if (port->target_devid) 9998 data_len += port->target_devid->len; 9999 10000 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10001 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10002 ctsio->kern_sg_entries = 0; 10003 10004 if (data_len < alloc_len) { 10005 ctsio->residual = alloc_len - data_len; 10006 ctsio->kern_data_len = data_len; 10007 ctsio->kern_total_len = data_len; 10008 } else { 10009 ctsio->residual = 0; 10010 ctsio->kern_data_len = alloc_len; 10011 ctsio->kern_total_len = alloc_len; 10012 } 10013 ctsio->kern_data_resid = 0; 10014 ctsio->kern_rel_offset = 0; 10015 ctsio->kern_sg_entries = 0; 10016 10017 /* 10018 * The control device is always connected. The disk device, on the 10019 * other hand, may not be online all the time. 10020 */ 10021 if (lun != NULL) 10022 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10023 lun->be_lun->lun_type; 10024 else 10025 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10026 devid_ptr->page_code = SVPD_DEVICE_ID; 10027 scsi_ulto2b(data_len - 4, devid_ptr->length); 10028 10029 if (port->port_type == CTL_PORT_FC) 10030 proto = SCSI_PROTO_FC << 4; 10031 else if (port->port_type == CTL_PORT_ISCSI) 10032 proto = SCSI_PROTO_ISCSI << 4; 10033 else 10034 proto = SCSI_PROTO_SPI << 4; 10035 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10036 10037 /* 10038 * We're using a LUN association here. i.e., this device ID is a 10039 * per-LUN identifier. 10040 */ 10041 if (lun && lun->lun_devid) { 10042 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10043 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10044 lun->lun_devid->len); 10045 } 10046 10047 /* 10048 * This is for the WWPN which is a port association. 10049 */ 10050 if (port->port_devid) { 10051 memcpy(desc, port->port_devid->data, port->port_devid->len); 10052 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10053 port->port_devid->len); 10054 } 10055 10056 /* 10057 * This is for the Relative Target Port(type 4h) identifier 10058 */ 10059 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10060 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10061 SVPD_ID_TYPE_RELTARG; 10062 desc->length = 4; 10063 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10064 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10065 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10066 10067 /* 10068 * This is for the Target Port Group(type 5h) identifier 10069 */ 10070 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10071 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10072 SVPD_ID_TYPE_TPORTGRP; 10073 desc->length = 4; 10074 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10075 &desc->identifier[2]); 10076 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10077 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10078 10079 /* 10080 * This is for the Target identifier 10081 */ 10082 if (port->target_devid) { 10083 memcpy(desc, port->target_devid->data, port->target_devid->len); 10084 } 10085 10086 ctsio->scsi_status = SCSI_STATUS_OK; 10087 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10088 ctsio->be_move_done = ctl_config_move_done; 10089 ctl_datamove((union ctl_io *)ctsio); 10090 10091 return (CTL_RETVAL_COMPLETE); 10092} 10093 10094static int 10095ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10096{ 10097 struct ctl_softc *softc = control_softc; 10098 struct scsi_vpd_scsi_ports *sp; 10099 struct scsi_vpd_port_designation *pd; 10100 struct scsi_vpd_port_designation_cont *pdc; 10101 struct ctl_lun *lun; 10102 struct ctl_port *port; 10103 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10104 int num_target_port_groups, single; 10105 10106 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10107 10108 single = ctl_is_single; 10109 if (single) 10110 num_target_port_groups = 1; 10111 else 10112 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10113 num_target_ports = 0; 10114 iid_len = 0; 10115 id_len = 0; 10116 mtx_lock(&softc->ctl_lock); 10117 STAILQ_FOREACH(port, &softc->port_list, links) { 10118 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10119 continue; 10120 if (lun != NULL && 10121 ctl_map_lun_back(port->targ_port, lun->lun) >= 10122 CTL_MAX_LUNS) 10123 continue; 10124 num_target_ports++; 10125 if (port->init_devid) 10126 iid_len += port->init_devid->len; 10127 if (port->port_devid) 10128 id_len += port->port_devid->len; 10129 } 10130 mtx_unlock(&softc->ctl_lock); 10131 10132 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10133 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10134 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10135 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10136 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10137 ctsio->kern_sg_entries = 0; 10138 10139 if (data_len < alloc_len) { 10140 ctsio->residual = alloc_len - data_len; 10141 ctsio->kern_data_len = data_len; 10142 ctsio->kern_total_len = data_len; 10143 } else { 10144 ctsio->residual = 0; 10145 ctsio->kern_data_len = alloc_len; 10146 ctsio->kern_total_len = alloc_len; 10147 } 10148 ctsio->kern_data_resid = 0; 10149 ctsio->kern_rel_offset = 0; 10150 ctsio->kern_sg_entries = 0; 10151 10152 /* 10153 * The control device is always connected. The disk device, on the 10154 * other hand, may not be online all the time. Need to change this 10155 * to figure out whether the disk device is actually online or not. 10156 */ 10157 if (lun != NULL) 10158 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10159 lun->be_lun->lun_type; 10160 else 10161 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10162 10163 sp->page_code = SVPD_SCSI_PORTS; 10164 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10165 sp->page_length); 10166 pd = &sp->design[0]; 10167 10168 mtx_lock(&softc->ctl_lock); 10169 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10170 pg = 0; 10171 else 10172 pg = 1; 10173 for (g = 0; g < num_target_port_groups; g++) { 10174 STAILQ_FOREACH(port, &softc->port_list, links) { 10175 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10176 continue; 10177 if (lun != NULL && 10178 ctl_map_lun_back(port->targ_port, lun->lun) >= 10179 CTL_MAX_LUNS) 10180 continue; 10181 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10182 scsi_ulto2b(p, pd->relative_port_id); 10183 if (port->init_devid && g == pg) { 10184 iid_len = port->init_devid->len; 10185 memcpy(pd->initiator_transportid, 10186 port->init_devid->data, port->init_devid->len); 10187 } else 10188 iid_len = 0; 10189 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10190 pdc = (struct scsi_vpd_port_designation_cont *) 10191 (&pd->initiator_transportid[iid_len]); 10192 if (port->port_devid && g == pg) { 10193 id_len = port->port_devid->len; 10194 memcpy(pdc->target_port_descriptors, 10195 port->port_devid->data, port->port_devid->len); 10196 } else 10197 id_len = 0; 10198 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10199 pd = (struct scsi_vpd_port_designation *) 10200 ((uint8_t *)pdc->target_port_descriptors + id_len); 10201 } 10202 } 10203 mtx_unlock(&softc->ctl_lock); 10204 10205 ctsio->scsi_status = SCSI_STATUS_OK; 10206 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10207 ctsio->be_move_done = ctl_config_move_done; 10208 ctl_datamove((union ctl_io *)ctsio); 10209 10210 return (CTL_RETVAL_COMPLETE); 10211} 10212 10213static int 10214ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10215{ 10216 struct scsi_vpd_block_limits *bl_ptr; 10217 struct ctl_lun *lun; 10218 int bs; 10219 10220 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10221 10222 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10223 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10224 ctsio->kern_sg_entries = 0; 10225 10226 if (sizeof(*bl_ptr) < alloc_len) { 10227 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10228 ctsio->kern_data_len = sizeof(*bl_ptr); 10229 ctsio->kern_total_len = sizeof(*bl_ptr); 10230 } else { 10231 ctsio->residual = 0; 10232 ctsio->kern_data_len = alloc_len; 10233 ctsio->kern_total_len = alloc_len; 10234 } 10235 ctsio->kern_data_resid = 0; 10236 ctsio->kern_rel_offset = 0; 10237 ctsio->kern_sg_entries = 0; 10238 10239 /* 10240 * The control device is always connected. The disk device, on the 10241 * other hand, may not be online all the time. Need to change this 10242 * to figure out whether the disk device is actually online or not. 10243 */ 10244 if (lun != NULL) 10245 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10246 lun->be_lun->lun_type; 10247 else 10248 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10249 10250 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10251 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10252 bl_ptr->max_cmp_write_len = 0xff; 10253 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10254 if (lun != NULL) { 10255 bs = lun->be_lun->blocksize; 10256 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10257 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10258 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10259 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10260 if (lun->be_lun->pblockexp != 0) { 10261 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10262 bl_ptr->opt_unmap_grain); 10263 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10264 bl_ptr->unmap_grain_align); 10265 } 10266 } 10267 scsi_ulto4b(lun->be_lun->atomicblock, 10268 bl_ptr->max_atomic_transfer_length); 10269 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10270 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10271 } 10272 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10273 10274 ctsio->scsi_status = SCSI_STATUS_OK; 10275 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10276 ctsio->be_move_done = ctl_config_move_done; 10277 ctl_datamove((union ctl_io *)ctsio); 10278 10279 return (CTL_RETVAL_COMPLETE); 10280} 10281 10282static int 10283ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10284{ 10285 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10286 struct ctl_lun *lun; 10287 10288 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10289 10290 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10291 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10292 ctsio->kern_sg_entries = 0; 10293 10294 if (sizeof(*bdc_ptr) < alloc_len) { 10295 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10296 ctsio->kern_data_len = sizeof(*bdc_ptr); 10297 ctsio->kern_total_len = sizeof(*bdc_ptr); 10298 } else { 10299 ctsio->residual = 0; 10300 ctsio->kern_data_len = alloc_len; 10301 ctsio->kern_total_len = alloc_len; 10302 } 10303 ctsio->kern_data_resid = 0; 10304 ctsio->kern_rel_offset = 0; 10305 ctsio->kern_sg_entries = 0; 10306 10307 /* 10308 * The control device is always connected. The disk device, on the 10309 * other hand, may not be online all the time. Need to change this 10310 * to figure out whether the disk device is actually online or not. 10311 */ 10312 if (lun != NULL) 10313 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10314 lun->be_lun->lun_type; 10315 else 10316 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10317 bdc_ptr->page_code = SVPD_BDC; 10318 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10319 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10320 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10321 10322 ctsio->scsi_status = SCSI_STATUS_OK; 10323 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10324 ctsio->be_move_done = ctl_config_move_done; 10325 ctl_datamove((union ctl_io *)ctsio); 10326 10327 return (CTL_RETVAL_COMPLETE); 10328} 10329 10330static int 10331ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10332{ 10333 struct scsi_vpd_logical_block_prov *lbp_ptr; 10334 struct ctl_lun *lun; 10335 10336 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10337 10338 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10339 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10340 ctsio->kern_sg_entries = 0; 10341 10342 if (sizeof(*lbp_ptr) < alloc_len) { 10343 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10344 ctsio->kern_data_len = sizeof(*lbp_ptr); 10345 ctsio->kern_total_len = sizeof(*lbp_ptr); 10346 } else { 10347 ctsio->residual = 0; 10348 ctsio->kern_data_len = alloc_len; 10349 ctsio->kern_total_len = alloc_len; 10350 } 10351 ctsio->kern_data_resid = 0; 10352 ctsio->kern_rel_offset = 0; 10353 ctsio->kern_sg_entries = 0; 10354 10355 /* 10356 * The control device is always connected. The disk device, on the 10357 * other hand, may not be online all the time. Need to change this 10358 * to figure out whether the disk device is actually online or not. 10359 */ 10360 if (lun != NULL) 10361 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10362 lun->be_lun->lun_type; 10363 else 10364 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10365 10366 lbp_ptr->page_code = SVPD_LBP; 10367 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10368 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10369 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10370 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10371 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10372 } 10373 10374 ctsio->scsi_status = SCSI_STATUS_OK; 10375 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10376 ctsio->be_move_done = ctl_config_move_done; 10377 ctl_datamove((union ctl_io *)ctsio); 10378 10379 return (CTL_RETVAL_COMPLETE); 10380} 10381 10382static int 10383ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10384{ 10385 struct scsi_inquiry *cdb; 10386 struct ctl_lun *lun; 10387 int alloc_len, retval; 10388 10389 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10390 cdb = (struct scsi_inquiry *)ctsio->cdb; 10391 10392 retval = CTL_RETVAL_COMPLETE; 10393 10394 alloc_len = scsi_2btoul(cdb->length); 10395 10396 switch (cdb->page_code) { 10397 case SVPD_SUPPORTED_PAGES: 10398 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10399 break; 10400 case SVPD_UNIT_SERIAL_NUMBER: 10401 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10402 break; 10403 case SVPD_DEVICE_ID: 10404 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10405 break; 10406 case SVPD_EXTENDED_INQUIRY_DATA: 10407 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10408 break; 10409 case SVPD_MODE_PAGE_POLICY: 10410 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10411 break; 10412 case SVPD_SCSI_PORTS: 10413 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10414 break; 10415 case SVPD_SCSI_TPC: 10416 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10417 break; 10418 case SVPD_BLOCK_LIMITS: 10419 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10420 break; 10421 case SVPD_BDC: 10422 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10423 break; 10424 case SVPD_LBP: 10425 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10426 break; 10427 default: 10428 ctl_set_invalid_field(ctsio, 10429 /*sks_valid*/ 1, 10430 /*command*/ 1, 10431 /*field*/ 2, 10432 /*bit_valid*/ 0, 10433 /*bit*/ 0); 10434 ctl_done((union ctl_io *)ctsio); 10435 retval = CTL_RETVAL_COMPLETE; 10436 break; 10437 } 10438 10439 return (retval); 10440} 10441 10442static int 10443ctl_inquiry_std(struct ctl_scsiio *ctsio) 10444{ 10445 struct scsi_inquiry_data *inq_ptr; 10446 struct scsi_inquiry *cdb; 10447 struct ctl_softc *ctl_softc; 10448 struct ctl_lun *lun; 10449 char *val; 10450 uint32_t alloc_len, data_len; 10451 ctl_port_type port_type; 10452 10453 ctl_softc = control_softc; 10454 10455 /* 10456 * Figure out whether we're talking to a Fibre Channel port or not. 10457 * We treat the ioctl front end, and any SCSI adapters, as packetized 10458 * SCSI front ends. 10459 */ 10460 port_type = ctl_softc->ctl_ports[ 10461 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10462 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10463 port_type = CTL_PORT_SCSI; 10464 10465 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10466 cdb = (struct scsi_inquiry *)ctsio->cdb; 10467 alloc_len = scsi_2btoul(cdb->length); 10468 10469 /* 10470 * We malloc the full inquiry data size here and fill it 10471 * in. If the user only asks for less, we'll give him 10472 * that much. 10473 */ 10474 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10475 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10476 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10477 ctsio->kern_sg_entries = 0; 10478 ctsio->kern_data_resid = 0; 10479 ctsio->kern_rel_offset = 0; 10480 10481 if (data_len < alloc_len) { 10482 ctsio->residual = alloc_len - data_len; 10483 ctsio->kern_data_len = data_len; 10484 ctsio->kern_total_len = data_len; 10485 } else { 10486 ctsio->residual = 0; 10487 ctsio->kern_data_len = alloc_len; 10488 ctsio->kern_total_len = alloc_len; 10489 } 10490 10491 /* 10492 * If we have a LUN configured, report it as connected. Otherwise, 10493 * report that it is offline or no device is supported, depending 10494 * on the value of inquiry_pq_no_lun. 10495 * 10496 * According to the spec (SPC-4 r34), the peripheral qualifier 10497 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10498 * 10499 * "A peripheral device having the specified peripheral device type 10500 * is not connected to this logical unit. However, the device 10501 * server is capable of supporting the specified peripheral device 10502 * type on this logical unit." 10503 * 10504 * According to the same spec, the peripheral qualifier 10505 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10506 * 10507 * "The device server is not capable of supporting a peripheral 10508 * device on this logical unit. For this peripheral qualifier the 10509 * peripheral device type shall be set to 1Fh. All other peripheral 10510 * device type values are reserved for this peripheral qualifier." 10511 * 10512 * Given the text, it would seem that we probably want to report that 10513 * the LUN is offline here. There is no LUN connected, but we can 10514 * support a LUN at the given LUN number. 10515 * 10516 * In the real world, though, it sounds like things are a little 10517 * different: 10518 * 10519 * - Linux, when presented with a LUN with the offline peripheral 10520 * qualifier, will create an sg driver instance for it. So when 10521 * you attach it to CTL, you wind up with a ton of sg driver 10522 * instances. (One for every LUN that Linux bothered to probe.) 10523 * Linux does this despite the fact that it issues a REPORT LUNs 10524 * to LUN 0 to get the inventory of supported LUNs. 10525 * 10526 * - There is other anecdotal evidence (from Emulex folks) about 10527 * arrays that use the offline peripheral qualifier for LUNs that 10528 * are on the "passive" path in an active/passive array. 10529 * 10530 * So the solution is provide a hopefully reasonable default 10531 * (return bad/no LUN) and allow the user to change the behavior 10532 * with a tunable/sysctl variable. 10533 */ 10534 if (lun != NULL) 10535 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10536 lun->be_lun->lun_type; 10537 else if (ctl_softc->inquiry_pq_no_lun == 0) 10538 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10539 else 10540 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10541 10542 /* RMB in byte 2 is 0 */ 10543 inq_ptr->version = SCSI_REV_SPC4; 10544 10545 /* 10546 * According to SAM-3, even if a device only supports a single 10547 * level of LUN addressing, it should still set the HISUP bit: 10548 * 10549 * 4.9.1 Logical unit numbers overview 10550 * 10551 * All logical unit number formats described in this standard are 10552 * hierarchical in structure even when only a single level in that 10553 * hierarchy is used. The HISUP bit shall be set to one in the 10554 * standard INQUIRY data (see SPC-2) when any logical unit number 10555 * format described in this standard is used. Non-hierarchical 10556 * formats are outside the scope of this standard. 10557 * 10558 * Therefore we set the HiSup bit here. 10559 * 10560 * The reponse format is 2, per SPC-3. 10561 */ 10562 inq_ptr->response_format = SID_HiSup | 2; 10563 10564 inq_ptr->additional_length = data_len - 10565 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10566 CTL_DEBUG_PRINT(("additional_length = %d\n", 10567 inq_ptr->additional_length)); 10568 10569 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10570 /* 16 bit addressing */ 10571 if (port_type == CTL_PORT_SCSI) 10572 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10573 /* XXX set the SID_MultiP bit here if we're actually going to 10574 respond on multiple ports */ 10575 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10576 10577 /* 16 bit data bus, synchronous transfers */ 10578 if (port_type == CTL_PORT_SCSI) 10579 inq_ptr->flags = SID_WBus16 | SID_Sync; 10580 /* 10581 * XXX KDM do we want to support tagged queueing on the control 10582 * device at all? 10583 */ 10584 if ((lun == NULL) 10585 || (lun->be_lun->lun_type != T_PROCESSOR)) 10586 inq_ptr->flags |= SID_CmdQue; 10587 /* 10588 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10589 * We have 8 bytes for the vendor name, and 16 bytes for the device 10590 * name and 4 bytes for the revision. 10591 */ 10592 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10593 "vendor")) == NULL) { 10594 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10595 } else { 10596 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10597 strncpy(inq_ptr->vendor, val, 10598 min(sizeof(inq_ptr->vendor), strlen(val))); 10599 } 10600 if (lun == NULL) { 10601 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10602 sizeof(inq_ptr->product)); 10603 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10604 switch (lun->be_lun->lun_type) { 10605 case T_DIRECT: 10606 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10607 sizeof(inq_ptr->product)); 10608 break; 10609 case T_PROCESSOR: 10610 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10611 sizeof(inq_ptr->product)); 10612 break; 10613 default: 10614 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10615 sizeof(inq_ptr->product)); 10616 break; 10617 } 10618 } else { 10619 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10620 strncpy(inq_ptr->product, val, 10621 min(sizeof(inq_ptr->product), strlen(val))); 10622 } 10623 10624 /* 10625 * XXX make this a macro somewhere so it automatically gets 10626 * incremented when we make changes. 10627 */ 10628 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10629 "revision")) == NULL) { 10630 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10631 } else { 10632 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10633 strncpy(inq_ptr->revision, val, 10634 min(sizeof(inq_ptr->revision), strlen(val))); 10635 } 10636 10637 /* 10638 * For parallel SCSI, we support double transition and single 10639 * transition clocking. We also support QAS (Quick Arbitration 10640 * and Selection) and Information Unit transfers on both the 10641 * control and array devices. 10642 */ 10643 if (port_type == CTL_PORT_SCSI) 10644 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10645 SID_SPI_IUS; 10646 10647 /* SAM-5 (no version claimed) */ 10648 scsi_ulto2b(0x00A0, inq_ptr->version1); 10649 /* SPC-4 (no version claimed) */ 10650 scsi_ulto2b(0x0460, inq_ptr->version2); 10651 if (port_type == CTL_PORT_FC) { 10652 /* FCP-2 ANSI INCITS.350:2003 */ 10653 scsi_ulto2b(0x0917, inq_ptr->version3); 10654 } else if (port_type == CTL_PORT_SCSI) { 10655 /* SPI-4 ANSI INCITS.362:200x */ 10656 scsi_ulto2b(0x0B56, inq_ptr->version3); 10657 } else if (port_type == CTL_PORT_ISCSI) { 10658 /* iSCSI (no version claimed) */ 10659 scsi_ulto2b(0x0960, inq_ptr->version3); 10660 } else if (port_type == CTL_PORT_SAS) { 10661 /* SAS (no version claimed) */ 10662 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10663 } 10664 10665 if (lun == NULL) { 10666 /* SBC-4 (no version claimed) */ 10667 scsi_ulto2b(0x0600, inq_ptr->version4); 10668 } else { 10669 switch (lun->be_lun->lun_type) { 10670 case T_DIRECT: 10671 /* SBC-4 (no version claimed) */ 10672 scsi_ulto2b(0x0600, inq_ptr->version4); 10673 break; 10674 case T_PROCESSOR: 10675 default: 10676 break; 10677 } 10678 } 10679 10680 ctsio->scsi_status = SCSI_STATUS_OK; 10681 if (ctsio->kern_data_len > 0) { 10682 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10683 ctsio->be_move_done = ctl_config_move_done; 10684 ctl_datamove((union ctl_io *)ctsio); 10685 } else { 10686 ctsio->io_hdr.status = CTL_SUCCESS; 10687 ctl_done((union ctl_io *)ctsio); 10688 } 10689 10690 return (CTL_RETVAL_COMPLETE); 10691} 10692 10693int 10694ctl_inquiry(struct ctl_scsiio *ctsio) 10695{ 10696 struct scsi_inquiry *cdb; 10697 int retval; 10698 10699 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10700 10701 cdb = (struct scsi_inquiry *)ctsio->cdb; 10702 if (cdb->byte2 & SI_EVPD) 10703 retval = ctl_inquiry_evpd(ctsio); 10704 else if (cdb->page_code == 0) 10705 retval = ctl_inquiry_std(ctsio); 10706 else { 10707 ctl_set_invalid_field(ctsio, 10708 /*sks_valid*/ 1, 10709 /*command*/ 1, 10710 /*field*/ 2, 10711 /*bit_valid*/ 0, 10712 /*bit*/ 0); 10713 ctl_done((union ctl_io *)ctsio); 10714 return (CTL_RETVAL_COMPLETE); 10715 } 10716 10717 return (retval); 10718} 10719 10720/* 10721 * For known CDB types, parse the LBA and length. 10722 */ 10723static int 10724ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10725{ 10726 if (io->io_hdr.io_type != CTL_IO_SCSI) 10727 return (1); 10728 10729 switch (io->scsiio.cdb[0]) { 10730 case COMPARE_AND_WRITE: { 10731 struct scsi_compare_and_write *cdb; 10732 10733 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10734 10735 *lba = scsi_8btou64(cdb->addr); 10736 *len = cdb->length; 10737 break; 10738 } 10739 case READ_6: 10740 case WRITE_6: { 10741 struct scsi_rw_6 *cdb; 10742 10743 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10744 10745 *lba = scsi_3btoul(cdb->addr); 10746 /* only 5 bits are valid in the most significant address byte */ 10747 *lba &= 0x1fffff; 10748 *len = cdb->length; 10749 break; 10750 } 10751 case READ_10: 10752 case WRITE_10: { 10753 struct scsi_rw_10 *cdb; 10754 10755 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10756 10757 *lba = scsi_4btoul(cdb->addr); 10758 *len = scsi_2btoul(cdb->length); 10759 break; 10760 } 10761 case WRITE_VERIFY_10: { 10762 struct scsi_write_verify_10 *cdb; 10763 10764 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10765 10766 *lba = scsi_4btoul(cdb->addr); 10767 *len = scsi_2btoul(cdb->length); 10768 break; 10769 } 10770 case READ_12: 10771 case WRITE_12: { 10772 struct scsi_rw_12 *cdb; 10773 10774 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10775 10776 *lba = scsi_4btoul(cdb->addr); 10777 *len = scsi_4btoul(cdb->length); 10778 break; 10779 } 10780 case WRITE_VERIFY_12: { 10781 struct scsi_write_verify_12 *cdb; 10782 10783 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10784 10785 *lba = scsi_4btoul(cdb->addr); 10786 *len = scsi_4btoul(cdb->length); 10787 break; 10788 } 10789 case READ_16: 10790 case WRITE_16: 10791 case WRITE_ATOMIC_16: { 10792 struct scsi_rw_16 *cdb; 10793 10794 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10795 10796 *lba = scsi_8btou64(cdb->addr); 10797 *len = scsi_4btoul(cdb->length); 10798 break; 10799 } 10800 case WRITE_VERIFY_16: { 10801 struct scsi_write_verify_16 *cdb; 10802 10803 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10804 10805 *lba = scsi_8btou64(cdb->addr); 10806 *len = scsi_4btoul(cdb->length); 10807 break; 10808 } 10809 case WRITE_SAME_10: { 10810 struct scsi_write_same_10 *cdb; 10811 10812 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10813 10814 *lba = scsi_4btoul(cdb->addr); 10815 *len = scsi_2btoul(cdb->length); 10816 break; 10817 } 10818 case WRITE_SAME_16: { 10819 struct scsi_write_same_16 *cdb; 10820 10821 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10822 10823 *lba = scsi_8btou64(cdb->addr); 10824 *len = scsi_4btoul(cdb->length); 10825 break; 10826 } 10827 case VERIFY_10: { 10828 struct scsi_verify_10 *cdb; 10829 10830 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10831 10832 *lba = scsi_4btoul(cdb->addr); 10833 *len = scsi_2btoul(cdb->length); 10834 break; 10835 } 10836 case VERIFY_12: { 10837 struct scsi_verify_12 *cdb; 10838 10839 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10840 10841 *lba = scsi_4btoul(cdb->addr); 10842 *len = scsi_4btoul(cdb->length); 10843 break; 10844 } 10845 case VERIFY_16: { 10846 struct scsi_verify_16 *cdb; 10847 10848 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10849 10850 *lba = scsi_8btou64(cdb->addr); 10851 *len = scsi_4btoul(cdb->length); 10852 break; 10853 } 10854 case UNMAP: { 10855 *lba = 0; 10856 *len = UINT64_MAX; 10857 break; 10858 } 10859 default: 10860 return (1); 10861 break; /* NOTREACHED */ 10862 } 10863 10864 return (0); 10865} 10866 10867static ctl_action 10868ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10869{ 10870 uint64_t endlba1, endlba2; 10871 10872 endlba1 = lba1 + len1 - 1; 10873 endlba2 = lba2 + len2 - 1; 10874 10875 if ((endlba1 < lba2) 10876 || (endlba2 < lba1)) 10877 return (CTL_ACTION_PASS); 10878 else 10879 return (CTL_ACTION_BLOCK); 10880} 10881 10882static int 10883ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10884{ 10885 struct ctl_ptr_len_flags *ptrlen; 10886 struct scsi_unmap_desc *buf, *end, *range; 10887 uint64_t lba; 10888 uint32_t len; 10889 10890 /* If not UNMAP -- go other way. */ 10891 if (io->io_hdr.io_type != CTL_IO_SCSI || 10892 io->scsiio.cdb[0] != UNMAP) 10893 return (CTL_ACTION_ERROR); 10894 10895 /* If UNMAP without data -- block and wait for data. */ 10896 ptrlen = (struct ctl_ptr_len_flags *) 10897 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10898 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10899 ptrlen->ptr == NULL) 10900 return (CTL_ACTION_BLOCK); 10901 10902 /* UNMAP with data -- check for collision. */ 10903 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10904 end = buf + ptrlen->len / sizeof(*buf); 10905 for (range = buf; range < end; range++) { 10906 lba = scsi_8btou64(range->lba); 10907 len = scsi_4btoul(range->length); 10908 if ((lba < lba2 + len2) && (lba + len > lba2)) 10909 return (CTL_ACTION_BLOCK); 10910 } 10911 return (CTL_ACTION_PASS); 10912} 10913 10914static ctl_action 10915ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10916{ 10917 uint64_t lba1, lba2; 10918 uint64_t len1, len2; 10919 int retval; 10920 10921 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10922 return (CTL_ACTION_ERROR); 10923 10924 retval = ctl_extent_check_unmap(io2, lba1, len1); 10925 if (retval != CTL_ACTION_ERROR) 10926 return (retval); 10927 10928 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10929 return (CTL_ACTION_ERROR); 10930 10931 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10932} 10933 10934static ctl_action 10935ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10936 union ctl_io *ooa_io) 10937{ 10938 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10939 ctl_serialize_action *serialize_row; 10940 10941 /* 10942 * The initiator attempted multiple untagged commands at the same 10943 * time. Can't do that. 10944 */ 10945 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10946 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10947 && ((pending_io->io_hdr.nexus.targ_port == 10948 ooa_io->io_hdr.nexus.targ_port) 10949 && (pending_io->io_hdr.nexus.initid.id == 10950 ooa_io->io_hdr.nexus.initid.id)) 10951 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10952 return (CTL_ACTION_OVERLAP); 10953 10954 /* 10955 * The initiator attempted to send multiple tagged commands with 10956 * the same ID. (It's fine if different initiators have the same 10957 * tag ID.) 10958 * 10959 * Even if all of those conditions are true, we don't kill the I/O 10960 * if the command ahead of us has been aborted. We won't end up 10961 * sending it to the FETD, and it's perfectly legal to resend a 10962 * command with the same tag number as long as the previous 10963 * instance of this tag number has been aborted somehow. 10964 */ 10965 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10966 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10967 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10968 && ((pending_io->io_hdr.nexus.targ_port == 10969 ooa_io->io_hdr.nexus.targ_port) 10970 && (pending_io->io_hdr.nexus.initid.id == 10971 ooa_io->io_hdr.nexus.initid.id)) 10972 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10973 return (CTL_ACTION_OVERLAP_TAG); 10974 10975 /* 10976 * If we get a head of queue tag, SAM-3 says that we should 10977 * immediately execute it. 10978 * 10979 * What happens if this command would normally block for some other 10980 * reason? e.g. a request sense with a head of queue tag 10981 * immediately after a write. Normally that would block, but this 10982 * will result in its getting executed immediately... 10983 * 10984 * We currently return "pass" instead of "skip", so we'll end up 10985 * going through the rest of the queue to check for overlapped tags. 10986 * 10987 * XXX KDM check for other types of blockage first?? 10988 */ 10989 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10990 return (CTL_ACTION_PASS); 10991 10992 /* 10993 * Ordered tags have to block until all items ahead of them 10994 * have completed. If we get called with an ordered tag, we always 10995 * block, if something else is ahead of us in the queue. 10996 */ 10997 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10998 return (CTL_ACTION_BLOCK); 10999 11000 /* 11001 * Simple tags get blocked until all head of queue and ordered tags 11002 * ahead of them have completed. I'm lumping untagged commands in 11003 * with simple tags here. XXX KDM is that the right thing to do? 11004 */ 11005 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11006 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11007 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11008 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11009 return (CTL_ACTION_BLOCK); 11010 11011 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11012 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11013 11014 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11015 11016 switch (serialize_row[pending_entry->seridx]) { 11017 case CTL_SER_BLOCK: 11018 return (CTL_ACTION_BLOCK); 11019 case CTL_SER_EXTENT: 11020 return (ctl_extent_check(pending_io, ooa_io)); 11021 case CTL_SER_EXTENTOPT: 11022 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11023 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11024 return (ctl_extent_check(pending_io, ooa_io)); 11025 /* FALLTHROUGH */ 11026 case CTL_SER_PASS: 11027 return (CTL_ACTION_PASS); 11028 case CTL_SER_BLOCKOPT: 11029 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11030 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11031 return (CTL_ACTION_BLOCK); 11032 return (CTL_ACTION_PASS); 11033 case CTL_SER_SKIP: 11034 return (CTL_ACTION_SKIP); 11035 default: 11036 panic("invalid serialization value %d", 11037 serialize_row[pending_entry->seridx]); 11038 } 11039 11040 return (CTL_ACTION_ERROR); 11041} 11042 11043/* 11044 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11045 * Assumptions: 11046 * - pending_io is generally either incoming, or on the blocked queue 11047 * - starting I/O is the I/O we want to start the check with. 11048 */ 11049static ctl_action 11050ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11051 union ctl_io *starting_io) 11052{ 11053 union ctl_io *ooa_io; 11054 ctl_action action; 11055 11056 mtx_assert(&lun->lun_lock, MA_OWNED); 11057 11058 /* 11059 * Run back along the OOA queue, starting with the current 11060 * blocked I/O and going through every I/O before it on the 11061 * queue. If starting_io is NULL, we'll just end up returning 11062 * CTL_ACTION_PASS. 11063 */ 11064 for (ooa_io = starting_io; ooa_io != NULL; 11065 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11066 ooa_links)){ 11067 11068 /* 11069 * This routine just checks to see whether 11070 * cur_blocked is blocked by ooa_io, which is ahead 11071 * of it in the queue. It doesn't queue/dequeue 11072 * cur_blocked. 11073 */ 11074 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11075 switch (action) { 11076 case CTL_ACTION_BLOCK: 11077 case CTL_ACTION_OVERLAP: 11078 case CTL_ACTION_OVERLAP_TAG: 11079 case CTL_ACTION_SKIP: 11080 case CTL_ACTION_ERROR: 11081 return (action); 11082 break; /* NOTREACHED */ 11083 case CTL_ACTION_PASS: 11084 break; 11085 default: 11086 panic("invalid action %d", action); 11087 break; /* NOTREACHED */ 11088 } 11089 } 11090 11091 return (CTL_ACTION_PASS); 11092} 11093 11094/* 11095 * Assumptions: 11096 * - An I/O has just completed, and has been removed from the per-LUN OOA 11097 * queue, so some items on the blocked queue may now be unblocked. 11098 */ 11099static int 11100ctl_check_blocked(struct ctl_lun *lun) 11101{ 11102 union ctl_io *cur_blocked, *next_blocked; 11103 11104 mtx_assert(&lun->lun_lock, MA_OWNED); 11105 11106 /* 11107 * Run forward from the head of the blocked queue, checking each 11108 * entry against the I/Os prior to it on the OOA queue to see if 11109 * there is still any blockage. 11110 * 11111 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11112 * with our removing a variable on it while it is traversing the 11113 * list. 11114 */ 11115 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11116 cur_blocked != NULL; cur_blocked = next_blocked) { 11117 union ctl_io *prev_ooa; 11118 ctl_action action; 11119 11120 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11121 blocked_links); 11122 11123 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11124 ctl_ooaq, ooa_links); 11125 11126 /* 11127 * If cur_blocked happens to be the first item in the OOA 11128 * queue now, prev_ooa will be NULL, and the action 11129 * returned will just be CTL_ACTION_PASS. 11130 */ 11131 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11132 11133 switch (action) { 11134 case CTL_ACTION_BLOCK: 11135 /* Nothing to do here, still blocked */ 11136 break; 11137 case CTL_ACTION_OVERLAP: 11138 case CTL_ACTION_OVERLAP_TAG: 11139 /* 11140 * This shouldn't happen! In theory we've already 11141 * checked this command for overlap... 11142 */ 11143 break; 11144 case CTL_ACTION_PASS: 11145 case CTL_ACTION_SKIP: { 11146 struct ctl_softc *softc; 11147 const struct ctl_cmd_entry *entry; 11148 uint32_t initidx; 11149 int isc_retval; 11150 11151 /* 11152 * The skip case shouldn't happen, this transaction 11153 * should have never made it onto the blocked queue. 11154 */ 11155 /* 11156 * This I/O is no longer blocked, we can remove it 11157 * from the blocked queue. Since this is a TAILQ 11158 * (doubly linked list), we can do O(1) removals 11159 * from any place on the list. 11160 */ 11161 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11162 blocked_links); 11163 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11164 11165 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11166 /* 11167 * Need to send IO back to original side to 11168 * run 11169 */ 11170 union ctl_ha_msg msg_info; 11171 11172 msg_info.hdr.original_sc = 11173 cur_blocked->io_hdr.original_sc; 11174 msg_info.hdr.serializing_sc = cur_blocked; 11175 msg_info.hdr.msg_type = CTL_MSG_R2R; 11176 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11177 &msg_info, sizeof(msg_info), 0)) > 11178 CTL_HA_STATUS_SUCCESS) { 11179 printf("CTL:Check Blocked error from " 11180 "ctl_ha_msg_send %d\n", 11181 isc_retval); 11182 } 11183 break; 11184 } 11185 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11186 softc = control_softc; 11187 11188 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11189 11190 /* 11191 * Check this I/O for LUN state changes that may 11192 * have happened while this command was blocked. 11193 * The LUN state may have been changed by a command 11194 * ahead of us in the queue, so we need to re-check 11195 * for any states that can be caused by SCSI 11196 * commands. 11197 */ 11198 if (ctl_scsiio_lun_check(softc, lun, entry, 11199 &cur_blocked->scsiio) == 0) { 11200 cur_blocked->io_hdr.flags |= 11201 CTL_FLAG_IS_WAS_ON_RTR; 11202 ctl_enqueue_rtr(cur_blocked); 11203 } else 11204 ctl_done(cur_blocked); 11205 break; 11206 } 11207 default: 11208 /* 11209 * This probably shouldn't happen -- we shouldn't 11210 * get CTL_ACTION_ERROR, or anything else. 11211 */ 11212 break; 11213 } 11214 } 11215 11216 return (CTL_RETVAL_COMPLETE); 11217} 11218 11219/* 11220 * This routine (with one exception) checks LUN flags that can be set by 11221 * commands ahead of us in the OOA queue. These flags have to be checked 11222 * when a command initially comes in, and when we pull a command off the 11223 * blocked queue and are preparing to execute it. The reason we have to 11224 * check these flags for commands on the blocked queue is that the LUN 11225 * state may have been changed by a command ahead of us while we're on the 11226 * blocked queue. 11227 * 11228 * Ordering is somewhat important with these checks, so please pay 11229 * careful attention to the placement of any new checks. 11230 */ 11231static int 11232ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11233 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11234{ 11235 int retval; 11236 uint32_t residx; 11237 11238 retval = 0; 11239 11240 mtx_assert(&lun->lun_lock, MA_OWNED); 11241 11242 /* 11243 * If this shelf is a secondary shelf controller, we have to reject 11244 * any media access commands. 11245 */ 11246#if 0 11247 /* No longer needed for HA */ 11248 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11249 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11250 ctl_set_lun_standby(ctsio); 11251 retval = 1; 11252 goto bailout; 11253 } 11254#endif 11255 11256 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11257 if (lun->flags & CTL_LUN_READONLY) { 11258 ctl_set_sense(ctsio, /*current_error*/ 1, 11259 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11260 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11261 retval = 1; 11262 goto bailout; 11263 } 11264 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11265 .eca_and_aen & SCP_SWP) != 0) { 11266 ctl_set_sense(ctsio, /*current_error*/ 1, 11267 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11268 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11269 retval = 1; 11270 goto bailout; 11271 } 11272 } 11273 11274 /* 11275 * Check for a reservation conflict. If this command isn't allowed 11276 * even on reserved LUNs, and if this initiator isn't the one who 11277 * reserved us, reject the command with a reservation conflict. 11278 */ 11279 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11280 if ((lun->flags & CTL_LUN_RESERVED) 11281 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11282 if (lun->res_idx != residx) { 11283 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11284 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11285 retval = 1; 11286 goto bailout; 11287 } 11288 } 11289 11290 if ((lun->flags & CTL_LUN_PR_RESERVED) 11291 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11292 /* 11293 * if we aren't registered or it's a res holder type 11294 * reservation and this isn't the res holder then set a 11295 * conflict. 11296 * NOTE: Commands which might be allowed on write exclusive 11297 * type reservations are checked in the particular command 11298 * for a conflict. Read and SSU are the only ones. 11299 */ 11300 if (lun->pr_keys[residx] == 0 11301 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11302 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11303 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11304 retval = 1; 11305 goto bailout; 11306 } 11307 11308 } 11309 11310 if ((lun->flags & CTL_LUN_OFFLINE) 11311 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11312 ctl_set_lun_not_ready(ctsio); 11313 retval = 1; 11314 goto bailout; 11315 } 11316 11317 /* 11318 * If the LUN is stopped, see if this particular command is allowed 11319 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11320 */ 11321 if ((lun->flags & CTL_LUN_STOPPED) 11322 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11323 /* "Logical unit not ready, initializing cmd. required" */ 11324 ctl_set_lun_stopped(ctsio); 11325 retval = 1; 11326 goto bailout; 11327 } 11328 11329 if ((lun->flags & CTL_LUN_INOPERABLE) 11330 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11331 /* "Medium format corrupted" */ 11332 ctl_set_medium_format_corrupted(ctsio); 11333 retval = 1; 11334 goto bailout; 11335 } 11336 11337bailout: 11338 return (retval); 11339 11340} 11341 11342static void 11343ctl_failover_io(union ctl_io *io, int have_lock) 11344{ 11345 ctl_set_busy(&io->scsiio); 11346 ctl_done(io); 11347} 11348 11349static void 11350ctl_failover(void) 11351{ 11352 struct ctl_lun *lun; 11353 struct ctl_softc *ctl_softc; 11354 union ctl_io *next_io, *pending_io; 11355 union ctl_io *io; 11356 int lun_idx; 11357 int i; 11358 11359 ctl_softc = control_softc; 11360 11361 mtx_lock(&ctl_softc->ctl_lock); 11362 /* 11363 * Remove any cmds from the other SC from the rtr queue. These 11364 * will obviously only be for LUNs for which we're the primary. 11365 * We can't send status or get/send data for these commands. 11366 * Since they haven't been executed yet, we can just remove them. 11367 * We'll either abort them or delete them below, depending on 11368 * which HA mode we're in. 11369 */ 11370#ifdef notyet 11371 mtx_lock(&ctl_softc->queue_lock); 11372 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11373 io != NULL; io = next_io) { 11374 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11375 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11376 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11377 ctl_io_hdr, links); 11378 } 11379 mtx_unlock(&ctl_softc->queue_lock); 11380#endif 11381 11382 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11383 lun = ctl_softc->ctl_luns[lun_idx]; 11384 if (lun==NULL) 11385 continue; 11386 11387 /* 11388 * Processor LUNs are primary on both sides. 11389 * XXX will this always be true? 11390 */ 11391 if (lun->be_lun->lun_type == T_PROCESSOR) 11392 continue; 11393 11394 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11395 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11396 printf("FAILOVER: primary lun %d\n", lun_idx); 11397 /* 11398 * Remove all commands from the other SC. First from the 11399 * blocked queue then from the ooa queue. Once we have 11400 * removed them. Call ctl_check_blocked to see if there 11401 * is anything that can run. 11402 */ 11403 for (io = (union ctl_io *)TAILQ_FIRST( 11404 &lun->blocked_queue); io != NULL; io = next_io) { 11405 11406 next_io = (union ctl_io *)TAILQ_NEXT( 11407 &io->io_hdr, blocked_links); 11408 11409 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11410 TAILQ_REMOVE(&lun->blocked_queue, 11411 &io->io_hdr,blocked_links); 11412 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11413 TAILQ_REMOVE(&lun->ooa_queue, 11414 &io->io_hdr, ooa_links); 11415 11416 ctl_free_io(io); 11417 } 11418 } 11419 11420 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11421 io != NULL; io = next_io) { 11422 11423 next_io = (union ctl_io *)TAILQ_NEXT( 11424 &io->io_hdr, ooa_links); 11425 11426 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11427 11428 TAILQ_REMOVE(&lun->ooa_queue, 11429 &io->io_hdr, 11430 ooa_links); 11431 11432 ctl_free_io(io); 11433 } 11434 } 11435 ctl_check_blocked(lun); 11436 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11437 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11438 11439 printf("FAILOVER: primary lun %d\n", lun_idx); 11440 /* 11441 * Abort all commands from the other SC. We can't 11442 * send status back for them now. These should get 11443 * cleaned up when they are completed or come out 11444 * for a datamove operation. 11445 */ 11446 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11447 io != NULL; io = next_io) { 11448 next_io = (union ctl_io *)TAILQ_NEXT( 11449 &io->io_hdr, ooa_links); 11450 11451 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11452 io->io_hdr.flags |= CTL_FLAG_ABORT; 11453 } 11454 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11455 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11456 11457 printf("FAILOVER: secondary lun %d\n", lun_idx); 11458 11459 lun->flags |= CTL_LUN_PRIMARY_SC; 11460 11461 /* 11462 * We send all I/O that was sent to this controller 11463 * and redirected to the other side back with 11464 * busy status, and have the initiator retry it. 11465 * Figuring out how much data has been transferred, 11466 * etc. and picking up where we left off would be 11467 * very tricky. 11468 * 11469 * XXX KDM need to remove I/O from the blocked 11470 * queue as well! 11471 */ 11472 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11473 &lun->ooa_queue); pending_io != NULL; 11474 pending_io = next_io) { 11475 11476 next_io = (union ctl_io *)TAILQ_NEXT( 11477 &pending_io->io_hdr, ooa_links); 11478 11479 pending_io->io_hdr.flags &= 11480 ~CTL_FLAG_SENT_2OTHER_SC; 11481 11482 if (pending_io->io_hdr.flags & 11483 CTL_FLAG_IO_ACTIVE) { 11484 pending_io->io_hdr.flags |= 11485 CTL_FLAG_FAILOVER; 11486 } else { 11487 ctl_set_busy(&pending_io->scsiio); 11488 ctl_done(pending_io); 11489 } 11490 } 11491 11492 /* 11493 * Build Unit Attention 11494 */ 11495 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11496 lun->pending_ua[i] |= 11497 CTL_UA_ASYM_ACC_CHANGE; 11498 } 11499 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11500 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11501 printf("FAILOVER: secondary lun %d\n", lun_idx); 11502 /* 11503 * if the first io on the OOA is not on the RtR queue 11504 * add it. 11505 */ 11506 lun->flags |= CTL_LUN_PRIMARY_SC; 11507 11508 pending_io = (union ctl_io *)TAILQ_FIRST( 11509 &lun->ooa_queue); 11510 if (pending_io==NULL) { 11511 printf("Nothing on OOA queue\n"); 11512 continue; 11513 } 11514 11515 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11516 if ((pending_io->io_hdr.flags & 11517 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11518 pending_io->io_hdr.flags |= 11519 CTL_FLAG_IS_WAS_ON_RTR; 11520 ctl_enqueue_rtr(pending_io); 11521 } 11522#if 0 11523 else 11524 { 11525 printf("Tag 0x%04x is running\n", 11526 pending_io->scsiio.tag_num); 11527 } 11528#endif 11529 11530 next_io = (union ctl_io *)TAILQ_NEXT( 11531 &pending_io->io_hdr, ooa_links); 11532 for (pending_io=next_io; pending_io != NULL; 11533 pending_io = next_io) { 11534 pending_io->io_hdr.flags &= 11535 ~CTL_FLAG_SENT_2OTHER_SC; 11536 next_io = (union ctl_io *)TAILQ_NEXT( 11537 &pending_io->io_hdr, ooa_links); 11538 if (pending_io->io_hdr.flags & 11539 CTL_FLAG_IS_WAS_ON_RTR) { 11540#if 0 11541 printf("Tag 0x%04x is running\n", 11542 pending_io->scsiio.tag_num); 11543#endif 11544 continue; 11545 } 11546 11547 switch (ctl_check_ooa(lun, pending_io, 11548 (union ctl_io *)TAILQ_PREV( 11549 &pending_io->io_hdr, ctl_ooaq, 11550 ooa_links))) { 11551 11552 case CTL_ACTION_BLOCK: 11553 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11554 &pending_io->io_hdr, 11555 blocked_links); 11556 pending_io->io_hdr.flags |= 11557 CTL_FLAG_BLOCKED; 11558 break; 11559 case CTL_ACTION_PASS: 11560 case CTL_ACTION_SKIP: 11561 pending_io->io_hdr.flags |= 11562 CTL_FLAG_IS_WAS_ON_RTR; 11563 ctl_enqueue_rtr(pending_io); 11564 break; 11565 case CTL_ACTION_OVERLAP: 11566 ctl_set_overlapped_cmd( 11567 (struct ctl_scsiio *)pending_io); 11568 ctl_done(pending_io); 11569 break; 11570 case CTL_ACTION_OVERLAP_TAG: 11571 ctl_set_overlapped_tag( 11572 (struct ctl_scsiio *)pending_io, 11573 pending_io->scsiio.tag_num & 0xff); 11574 ctl_done(pending_io); 11575 break; 11576 case CTL_ACTION_ERROR: 11577 default: 11578 ctl_set_internal_failure( 11579 (struct ctl_scsiio *)pending_io, 11580 0, // sks_valid 11581 0); //retry count 11582 ctl_done(pending_io); 11583 break; 11584 } 11585 } 11586 11587 /* 11588 * Build Unit Attention 11589 */ 11590 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11591 lun->pending_ua[i] |= 11592 CTL_UA_ASYM_ACC_CHANGE; 11593 } 11594 } else { 11595 panic("Unhandled HA mode failover, LUN flags = %#x, " 11596 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11597 } 11598 } 11599 ctl_pause_rtr = 0; 11600 mtx_unlock(&ctl_softc->ctl_lock); 11601} 11602 11603static int 11604ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11605{ 11606 struct ctl_lun *lun; 11607 const struct ctl_cmd_entry *entry; 11608 uint32_t initidx, targ_lun; 11609 int retval; 11610 11611 retval = 0; 11612 11613 lun = NULL; 11614 11615 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11616 if ((targ_lun < CTL_MAX_LUNS) 11617 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11618 lun = ctl_softc->ctl_luns[targ_lun]; 11619 /* 11620 * If the LUN is invalid, pretend that it doesn't exist. 11621 * It will go away as soon as all pending I/O has been 11622 * completed. 11623 */ 11624 if (lun->flags & CTL_LUN_DISABLED) { 11625 lun = NULL; 11626 } else { 11627 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11628 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11629 lun->be_lun; 11630 if (lun->be_lun->lun_type == T_PROCESSOR) { 11631 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11632 } 11633 11634 /* 11635 * Every I/O goes into the OOA queue for a 11636 * particular LUN, and stays there until completion. 11637 */ 11638 mtx_lock(&lun->lun_lock); 11639 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11640 ooa_links); 11641 } 11642 } else { 11643 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11644 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11645 } 11646 11647 /* Get command entry and return error if it is unsuppotyed. */ 11648 entry = ctl_validate_command(ctsio); 11649 if (entry == NULL) { 11650 if (lun) 11651 mtx_unlock(&lun->lun_lock); 11652 return (retval); 11653 } 11654 11655 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11656 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11657 11658 /* 11659 * Check to see whether we can send this command to LUNs that don't 11660 * exist. This should pretty much only be the case for inquiry 11661 * and request sense. Further checks, below, really require having 11662 * a LUN, so we can't really check the command anymore. Just put 11663 * it on the rtr queue. 11664 */ 11665 if (lun == NULL) { 11666 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11667 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11668 ctl_enqueue_rtr((union ctl_io *)ctsio); 11669 return (retval); 11670 } 11671 11672 ctl_set_unsupported_lun(ctsio); 11673 ctl_done((union ctl_io *)ctsio); 11674 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11675 return (retval); 11676 } else { 11677 /* 11678 * Make sure we support this particular command on this LUN. 11679 * e.g., we don't support writes to the control LUN. 11680 */ 11681 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11682 mtx_unlock(&lun->lun_lock); 11683 ctl_set_invalid_opcode(ctsio); 11684 ctl_done((union ctl_io *)ctsio); 11685 return (retval); 11686 } 11687 } 11688 11689 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11690 11691#ifdef CTL_WITH_CA 11692 /* 11693 * If we've got a request sense, it'll clear the contingent 11694 * allegiance condition. Otherwise, if we have a CA condition for 11695 * this initiator, clear it, because it sent down a command other 11696 * than request sense. 11697 */ 11698 if ((ctsio->cdb[0] != REQUEST_SENSE) 11699 && (ctl_is_set(lun->have_ca, initidx))) 11700 ctl_clear_mask(lun->have_ca, initidx); 11701#endif 11702 11703 /* 11704 * If the command has this flag set, it handles its own unit 11705 * attention reporting, we shouldn't do anything. Otherwise we 11706 * check for any pending unit attentions, and send them back to the 11707 * initiator. We only do this when a command initially comes in, 11708 * not when we pull it off the blocked queue. 11709 * 11710 * According to SAM-3, section 5.3.2, the order that things get 11711 * presented back to the host is basically unit attentions caused 11712 * by some sort of reset event, busy status, reservation conflicts 11713 * or task set full, and finally any other status. 11714 * 11715 * One issue here is that some of the unit attentions we report 11716 * don't fall into the "reset" category (e.g. "reported luns data 11717 * has changed"). So reporting it here, before the reservation 11718 * check, may be technically wrong. I guess the only thing to do 11719 * would be to check for and report the reset events here, and then 11720 * check for the other unit attention types after we check for a 11721 * reservation conflict. 11722 * 11723 * XXX KDM need to fix this 11724 */ 11725 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11726 ctl_ua_type ua_type; 11727 11728 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11729 scsi_sense_data_type sense_format; 11730 11731 if (lun != NULL) 11732 sense_format = (lun->flags & 11733 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11734 SSD_TYPE_FIXED; 11735 else 11736 sense_format = SSD_TYPE_FIXED; 11737 11738 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11739 &ctsio->sense_data, sense_format); 11740 if (ua_type != CTL_UA_NONE) { 11741 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11742 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11743 CTL_AUTOSENSE; 11744 ctsio->sense_len = SSD_FULL_SIZE; 11745 mtx_unlock(&lun->lun_lock); 11746 ctl_done((union ctl_io *)ctsio); 11747 return (retval); 11748 } 11749 } 11750 } 11751 11752 11753 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11754 mtx_unlock(&lun->lun_lock); 11755 ctl_done((union ctl_io *)ctsio); 11756 return (retval); 11757 } 11758 11759 /* 11760 * XXX CHD this is where we want to send IO to other side if 11761 * this LUN is secondary on this SC. We will need to make a copy 11762 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11763 * the copy we send as FROM_OTHER. 11764 * We also need to stuff the address of the original IO so we can 11765 * find it easily. Something similar will need be done on the other 11766 * side so when we are done we can find the copy. 11767 */ 11768 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11769 union ctl_ha_msg msg_info; 11770 int isc_retval; 11771 11772 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11773 11774 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11775 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11776#if 0 11777 printf("1. ctsio %p\n", ctsio); 11778#endif 11779 msg_info.hdr.serializing_sc = NULL; 11780 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11781 msg_info.scsi.tag_num = ctsio->tag_num; 11782 msg_info.scsi.tag_type = ctsio->tag_type; 11783 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11784 11785 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11786 11787 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11788 (void *)&msg_info, sizeof(msg_info), 0)) > 11789 CTL_HA_STATUS_SUCCESS) { 11790 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11791 isc_retval); 11792 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11793 } else { 11794#if 0 11795 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11796#endif 11797 } 11798 11799 /* 11800 * XXX KDM this I/O is off the incoming queue, but hasn't 11801 * been inserted on any other queue. We may need to come 11802 * up with a holding queue while we wait for serialization 11803 * so that we have an idea of what we're waiting for from 11804 * the other side. 11805 */ 11806 mtx_unlock(&lun->lun_lock); 11807 return (retval); 11808 } 11809 11810 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11811 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11812 ctl_ooaq, ooa_links))) { 11813 case CTL_ACTION_BLOCK: 11814 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11815 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11816 blocked_links); 11817 mtx_unlock(&lun->lun_lock); 11818 return (retval); 11819 case CTL_ACTION_PASS: 11820 case CTL_ACTION_SKIP: 11821 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11822 mtx_unlock(&lun->lun_lock); 11823 ctl_enqueue_rtr((union ctl_io *)ctsio); 11824 break; 11825 case CTL_ACTION_OVERLAP: 11826 mtx_unlock(&lun->lun_lock); 11827 ctl_set_overlapped_cmd(ctsio); 11828 ctl_done((union ctl_io *)ctsio); 11829 break; 11830 case CTL_ACTION_OVERLAP_TAG: 11831 mtx_unlock(&lun->lun_lock); 11832 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11833 ctl_done((union ctl_io *)ctsio); 11834 break; 11835 case CTL_ACTION_ERROR: 11836 default: 11837 mtx_unlock(&lun->lun_lock); 11838 ctl_set_internal_failure(ctsio, 11839 /*sks_valid*/ 0, 11840 /*retry_count*/ 0); 11841 ctl_done((union ctl_io *)ctsio); 11842 break; 11843 } 11844 return (retval); 11845} 11846 11847const struct ctl_cmd_entry * 11848ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11849{ 11850 const struct ctl_cmd_entry *entry; 11851 int service_action; 11852 11853 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11854 if (sa) 11855 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11856 if (entry->flags & CTL_CMD_FLAG_SA5) { 11857 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11858 entry = &((const struct ctl_cmd_entry *) 11859 entry->execute)[service_action]; 11860 } 11861 return (entry); 11862} 11863 11864const struct ctl_cmd_entry * 11865ctl_validate_command(struct ctl_scsiio *ctsio) 11866{ 11867 const struct ctl_cmd_entry *entry; 11868 int i, sa; 11869 uint8_t diff; 11870 11871 entry = ctl_get_cmd_entry(ctsio, &sa); 11872 if (entry->execute == NULL) { 11873 if (sa) 11874 ctl_set_invalid_field(ctsio, 11875 /*sks_valid*/ 1, 11876 /*command*/ 1, 11877 /*field*/ 1, 11878 /*bit_valid*/ 1, 11879 /*bit*/ 4); 11880 else 11881 ctl_set_invalid_opcode(ctsio); 11882 ctl_done((union ctl_io *)ctsio); 11883 return (NULL); 11884 } 11885 KASSERT(entry->length > 0, 11886 ("Not defined length for command 0x%02x/0x%02x", 11887 ctsio->cdb[0], ctsio->cdb[1])); 11888 for (i = 1; i < entry->length; i++) { 11889 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11890 if (diff == 0) 11891 continue; 11892 ctl_set_invalid_field(ctsio, 11893 /*sks_valid*/ 1, 11894 /*command*/ 1, 11895 /*field*/ i, 11896 /*bit_valid*/ 1, 11897 /*bit*/ fls(diff) - 1); 11898 ctl_done((union ctl_io *)ctsio); 11899 return (NULL); 11900 } 11901 return (entry); 11902} 11903 11904static int 11905ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11906{ 11907 11908 switch (lun_type) { 11909 case T_PROCESSOR: 11910 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11911 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11912 return (0); 11913 break; 11914 case T_DIRECT: 11915 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11916 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11917 return (0); 11918 break; 11919 default: 11920 return (0); 11921 } 11922 return (1); 11923} 11924 11925static int 11926ctl_scsiio(struct ctl_scsiio *ctsio) 11927{ 11928 int retval; 11929 const struct ctl_cmd_entry *entry; 11930 11931 retval = CTL_RETVAL_COMPLETE; 11932 11933 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11934 11935 entry = ctl_get_cmd_entry(ctsio, NULL); 11936 11937 /* 11938 * If this I/O has been aborted, just send it straight to 11939 * ctl_done() without executing it. 11940 */ 11941 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11942 ctl_done((union ctl_io *)ctsio); 11943 goto bailout; 11944 } 11945 11946 /* 11947 * All the checks should have been handled by ctl_scsiio_precheck(). 11948 * We should be clear now to just execute the I/O. 11949 */ 11950 retval = entry->execute(ctsio); 11951 11952bailout: 11953 return (retval); 11954} 11955 11956/* 11957 * Since we only implement one target right now, a bus reset simply resets 11958 * our single target. 11959 */ 11960static int 11961ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11962{ 11963 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11964} 11965 11966static int 11967ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11968 ctl_ua_type ua_type) 11969{ 11970 struct ctl_lun *lun; 11971 int retval; 11972 11973 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11974 union ctl_ha_msg msg_info; 11975 11976 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11977 msg_info.hdr.nexus = io->io_hdr.nexus; 11978 if (ua_type==CTL_UA_TARG_RESET) 11979 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11980 else 11981 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11982 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11983 msg_info.hdr.original_sc = NULL; 11984 msg_info.hdr.serializing_sc = NULL; 11985 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11986 (void *)&msg_info, sizeof(msg_info), 0)) { 11987 } 11988 } 11989 retval = 0; 11990 11991 mtx_lock(&ctl_softc->ctl_lock); 11992 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11993 retval += ctl_lun_reset(lun, io, ua_type); 11994 mtx_unlock(&ctl_softc->ctl_lock); 11995 11996 return (retval); 11997} 11998 11999/* 12000 * The LUN should always be set. The I/O is optional, and is used to 12001 * distinguish between I/Os sent by this initiator, and by other 12002 * initiators. We set unit attention for initiators other than this one. 12003 * SAM-3 is vague on this point. It does say that a unit attention should 12004 * be established for other initiators when a LUN is reset (see section 12005 * 5.7.3), but it doesn't specifically say that the unit attention should 12006 * be established for this particular initiator when a LUN is reset. Here 12007 * is the relevant text, from SAM-3 rev 8: 12008 * 12009 * 5.7.2 When a SCSI initiator port aborts its own tasks 12010 * 12011 * When a SCSI initiator port causes its own task(s) to be aborted, no 12012 * notification that the task(s) have been aborted shall be returned to 12013 * the SCSI initiator port other than the completion response for the 12014 * command or task management function action that caused the task(s) to 12015 * be aborted and notification(s) associated with related effects of the 12016 * action (e.g., a reset unit attention condition). 12017 * 12018 * XXX KDM for now, we're setting unit attention for all initiators. 12019 */ 12020static int 12021ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12022{ 12023 union ctl_io *xio; 12024#if 0 12025 uint32_t initindex; 12026#endif 12027 int i; 12028 12029 mtx_lock(&lun->lun_lock); 12030 /* 12031 * Run through the OOA queue and abort each I/O. 12032 */ 12033#if 0 12034 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12035#endif 12036 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12037 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12038 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12039 } 12040 12041 /* 12042 * This version sets unit attention for every 12043 */ 12044#if 0 12045 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12046 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12047 if (initindex == i) 12048 continue; 12049 lun->pending_ua[i] |= ua_type; 12050 } 12051#endif 12052 12053 /* 12054 * A reset (any kind, really) clears reservations established with 12055 * RESERVE/RELEASE. It does not clear reservations established 12056 * with PERSISTENT RESERVE OUT, but we don't support that at the 12057 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12058 * reservations made with the RESERVE/RELEASE commands, because 12059 * those commands are obsolete in SPC-3. 12060 */ 12061 lun->flags &= ~CTL_LUN_RESERVED; 12062 12063 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12064#ifdef CTL_WITH_CA 12065 ctl_clear_mask(lun->have_ca, i); 12066#endif 12067 lun->pending_ua[i] |= ua_type; 12068 } 12069 mtx_unlock(&lun->lun_lock); 12070 12071 return (0); 12072} 12073 12074static void 12075ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12076 int other_sc) 12077{ 12078 union ctl_io *xio; 12079 12080 mtx_assert(&lun->lun_lock, MA_OWNED); 12081 12082 /* 12083 * Run through the OOA queue and attempt to find the given I/O. 12084 * The target port, initiator ID, tag type and tag number have to 12085 * match the values that we got from the initiator. If we have an 12086 * untagged command to abort, simply abort the first untagged command 12087 * we come to. We only allow one untagged command at a time of course. 12088 */ 12089 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12090 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12091 12092 if ((targ_port == UINT32_MAX || 12093 targ_port == xio->io_hdr.nexus.targ_port) && 12094 (init_id == UINT32_MAX || 12095 init_id == xio->io_hdr.nexus.initid.id)) { 12096 if (targ_port != xio->io_hdr.nexus.targ_port || 12097 init_id != xio->io_hdr.nexus.initid.id) 12098 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12099 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12100 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12101 union ctl_ha_msg msg_info; 12102 12103 msg_info.hdr.nexus = xio->io_hdr.nexus; 12104 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12105 msg_info.task.tag_num = xio->scsiio.tag_num; 12106 msg_info.task.tag_type = xio->scsiio.tag_type; 12107 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12108 msg_info.hdr.original_sc = NULL; 12109 msg_info.hdr.serializing_sc = NULL; 12110 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12111 (void *)&msg_info, sizeof(msg_info), 0); 12112 } 12113 } 12114 } 12115} 12116 12117static int 12118ctl_abort_task_set(union ctl_io *io) 12119{ 12120 struct ctl_softc *softc = control_softc; 12121 struct ctl_lun *lun; 12122 uint32_t targ_lun; 12123 12124 /* 12125 * Look up the LUN. 12126 */ 12127 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12128 mtx_lock(&softc->ctl_lock); 12129 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12130 lun = softc->ctl_luns[targ_lun]; 12131 else { 12132 mtx_unlock(&softc->ctl_lock); 12133 return (1); 12134 } 12135 12136 mtx_lock(&lun->lun_lock); 12137 mtx_unlock(&softc->ctl_lock); 12138 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12139 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12140 io->io_hdr.nexus.initid.id, 12141 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12142 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12143 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12144 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12145 } 12146 mtx_unlock(&lun->lun_lock); 12147 return (0); 12148} 12149 12150static int 12151ctl_i_t_nexus_reset(union ctl_io *io) 12152{ 12153 struct ctl_softc *softc = control_softc; 12154 struct ctl_lun *lun; 12155 uint32_t initindex, residx; 12156 12157 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12158 residx = ctl_get_resindex(&io->io_hdr.nexus); 12159 mtx_lock(&softc->ctl_lock); 12160 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12161 mtx_lock(&lun->lun_lock); 12162 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12163 io->io_hdr.nexus.initid.id, 12164 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12165#ifdef CTL_WITH_CA 12166 ctl_clear_mask(lun->have_ca, initindex); 12167#endif 12168 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12169 lun->flags &= ~CTL_LUN_RESERVED; 12170 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12171 mtx_unlock(&lun->lun_lock); 12172 } 12173 mtx_unlock(&softc->ctl_lock); 12174 return (0); 12175} 12176 12177static int 12178ctl_abort_task(union ctl_io *io) 12179{ 12180 union ctl_io *xio; 12181 struct ctl_lun *lun; 12182 struct ctl_softc *ctl_softc; 12183#if 0 12184 struct sbuf sb; 12185 char printbuf[128]; 12186#endif 12187 int found; 12188 uint32_t targ_lun; 12189 12190 ctl_softc = control_softc; 12191 found = 0; 12192 12193 /* 12194 * Look up the LUN. 12195 */ 12196 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12197 mtx_lock(&ctl_softc->ctl_lock); 12198 if ((targ_lun < CTL_MAX_LUNS) 12199 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12200 lun = ctl_softc->ctl_luns[targ_lun]; 12201 else { 12202 mtx_unlock(&ctl_softc->ctl_lock); 12203 return (1); 12204 } 12205 12206#if 0 12207 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12208 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12209#endif 12210 12211 mtx_lock(&lun->lun_lock); 12212 mtx_unlock(&ctl_softc->ctl_lock); 12213 /* 12214 * Run through the OOA queue and attempt to find the given I/O. 12215 * The target port, initiator ID, tag type and tag number have to 12216 * match the values that we got from the initiator. If we have an 12217 * untagged command to abort, simply abort the first untagged command 12218 * we come to. We only allow one untagged command at a time of course. 12219 */ 12220#if 0 12221 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12222#endif 12223 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12224 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12225#if 0 12226 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12227 12228 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12229 lun->lun, xio->scsiio.tag_num, 12230 xio->scsiio.tag_type, 12231 (xio->io_hdr.blocked_links.tqe_prev 12232 == NULL) ? "" : " BLOCKED", 12233 (xio->io_hdr.flags & 12234 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12235 (xio->io_hdr.flags & 12236 CTL_FLAG_ABORT) ? " ABORT" : "", 12237 (xio->io_hdr.flags & 12238 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12239 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12240 sbuf_finish(&sb); 12241 printf("%s\n", sbuf_data(&sb)); 12242#endif 12243 12244 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12245 && (xio->io_hdr.nexus.initid.id == 12246 io->io_hdr.nexus.initid.id)) { 12247 /* 12248 * If the abort says that the task is untagged, the 12249 * task in the queue must be untagged. Otherwise, 12250 * we just check to see whether the tag numbers 12251 * match. This is because the QLogic firmware 12252 * doesn't pass back the tag type in an abort 12253 * request. 12254 */ 12255#if 0 12256 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12257 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12258 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12259#endif 12260 /* 12261 * XXX KDM we've got problems with FC, because it 12262 * doesn't send down a tag type with aborts. So we 12263 * can only really go by the tag number... 12264 * This may cause problems with parallel SCSI. 12265 * Need to figure that out!! 12266 */ 12267 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12268 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12269 found = 1; 12270 if ((io->io_hdr.flags & 12271 CTL_FLAG_FROM_OTHER_SC) == 0 && 12272 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12273 union ctl_ha_msg msg_info; 12274 12275 io->io_hdr.flags |= 12276 CTL_FLAG_SENT_2OTHER_SC; 12277 msg_info.hdr.nexus = io->io_hdr.nexus; 12278 msg_info.task.task_action = 12279 CTL_TASK_ABORT_TASK; 12280 msg_info.task.tag_num = 12281 io->taskio.tag_num; 12282 msg_info.task.tag_type = 12283 io->taskio.tag_type; 12284 msg_info.hdr.msg_type = 12285 CTL_MSG_MANAGE_TASKS; 12286 msg_info.hdr.original_sc = NULL; 12287 msg_info.hdr.serializing_sc = NULL; 12288#if 0 12289 printf("Sent Abort to other side\n"); 12290#endif 12291 if (CTL_HA_STATUS_SUCCESS != 12292 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12293 (void *)&msg_info, 12294 sizeof(msg_info), 0)) { 12295 } 12296 } 12297#if 0 12298 printf("ctl_abort_task: found I/O to abort\n"); 12299#endif 12300 break; 12301 } 12302 } 12303 } 12304 mtx_unlock(&lun->lun_lock); 12305 12306 if (found == 0) { 12307 /* 12308 * This isn't really an error. It's entirely possible for 12309 * the abort and command completion to cross on the wire. 12310 * This is more of an informative/diagnostic error. 12311 */ 12312#if 0 12313 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12314 "%d:%d:%d:%d tag %d type %d\n", 12315 io->io_hdr.nexus.initid.id, 12316 io->io_hdr.nexus.targ_port, 12317 io->io_hdr.nexus.targ_target.id, 12318 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12319 io->taskio.tag_type); 12320#endif 12321 } 12322 return (0); 12323} 12324 12325static void 12326ctl_run_task(union ctl_io *io) 12327{ 12328 struct ctl_softc *ctl_softc = control_softc; 12329 int retval = 1; 12330 const char *task_desc; 12331 12332 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12333 12334 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12335 ("ctl_run_task: Unextected io_type %d\n", 12336 io->io_hdr.io_type)); 12337 12338 task_desc = ctl_scsi_task_string(&io->taskio); 12339 if (task_desc != NULL) { 12340#ifdef NEEDTOPORT 12341 csevent_log(CSC_CTL | CSC_SHELF_SW | 12342 CTL_TASK_REPORT, 12343 csevent_LogType_Trace, 12344 csevent_Severity_Information, 12345 csevent_AlertLevel_Green, 12346 csevent_FRU_Firmware, 12347 csevent_FRU_Unknown, 12348 "CTL: received task: %s",task_desc); 12349#endif 12350 } else { 12351#ifdef NEEDTOPORT 12352 csevent_log(CSC_CTL | CSC_SHELF_SW | 12353 CTL_TASK_REPORT, 12354 csevent_LogType_Trace, 12355 csevent_Severity_Information, 12356 csevent_AlertLevel_Green, 12357 csevent_FRU_Firmware, 12358 csevent_FRU_Unknown, 12359 "CTL: received unknown task " 12360 "type: %d (%#x)", 12361 io->taskio.task_action, 12362 io->taskio.task_action); 12363#endif 12364 } 12365 switch (io->taskio.task_action) { 12366 case CTL_TASK_ABORT_TASK: 12367 retval = ctl_abort_task(io); 12368 break; 12369 case CTL_TASK_ABORT_TASK_SET: 12370 case CTL_TASK_CLEAR_TASK_SET: 12371 retval = ctl_abort_task_set(io); 12372 break; 12373 case CTL_TASK_CLEAR_ACA: 12374 break; 12375 case CTL_TASK_I_T_NEXUS_RESET: 12376 retval = ctl_i_t_nexus_reset(io); 12377 break; 12378 case CTL_TASK_LUN_RESET: { 12379 struct ctl_lun *lun; 12380 uint32_t targ_lun; 12381 12382 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12383 mtx_lock(&ctl_softc->ctl_lock); 12384 if ((targ_lun < CTL_MAX_LUNS) 12385 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12386 lun = ctl_softc->ctl_luns[targ_lun]; 12387 else { 12388 mtx_unlock(&ctl_softc->ctl_lock); 12389 retval = 1; 12390 break; 12391 } 12392 12393 if (!(io->io_hdr.flags & 12394 CTL_FLAG_FROM_OTHER_SC)) { 12395 union ctl_ha_msg msg_info; 12396 12397 io->io_hdr.flags |= 12398 CTL_FLAG_SENT_2OTHER_SC; 12399 msg_info.hdr.msg_type = 12400 CTL_MSG_MANAGE_TASKS; 12401 msg_info.hdr.nexus = io->io_hdr.nexus; 12402 msg_info.task.task_action = 12403 CTL_TASK_LUN_RESET; 12404 msg_info.hdr.original_sc = NULL; 12405 msg_info.hdr.serializing_sc = NULL; 12406 if (CTL_HA_STATUS_SUCCESS != 12407 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12408 (void *)&msg_info, 12409 sizeof(msg_info), 0)) { 12410 } 12411 } 12412 12413 retval = ctl_lun_reset(lun, io, 12414 CTL_UA_LUN_RESET); 12415 mtx_unlock(&ctl_softc->ctl_lock); 12416 break; 12417 } 12418 case CTL_TASK_TARGET_RESET: 12419 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12420 break; 12421 case CTL_TASK_BUS_RESET: 12422 retval = ctl_bus_reset(ctl_softc, io); 12423 break; 12424 case CTL_TASK_PORT_LOGIN: 12425 break; 12426 case CTL_TASK_PORT_LOGOUT: 12427 break; 12428 default: 12429 printf("ctl_run_task: got unknown task management event %d\n", 12430 io->taskio.task_action); 12431 break; 12432 } 12433 if (retval == 0) 12434 io->io_hdr.status = CTL_SUCCESS; 12435 else 12436 io->io_hdr.status = CTL_ERROR; 12437 ctl_done(io); 12438} 12439 12440/* 12441 * For HA operation. Handle commands that come in from the other 12442 * controller. 12443 */ 12444static void 12445ctl_handle_isc(union ctl_io *io) 12446{ 12447 int free_io; 12448 struct ctl_lun *lun; 12449 struct ctl_softc *ctl_softc; 12450 uint32_t targ_lun; 12451 12452 ctl_softc = control_softc; 12453 12454 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12455 lun = ctl_softc->ctl_luns[targ_lun]; 12456 12457 switch (io->io_hdr.msg_type) { 12458 case CTL_MSG_SERIALIZE: 12459 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12460 break; 12461 case CTL_MSG_R2R: { 12462 const struct ctl_cmd_entry *entry; 12463 12464 /* 12465 * This is only used in SER_ONLY mode. 12466 */ 12467 free_io = 0; 12468 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12469 mtx_lock(&lun->lun_lock); 12470 if (ctl_scsiio_lun_check(ctl_softc, lun, 12471 entry, (struct ctl_scsiio *)io) != 0) { 12472 mtx_unlock(&lun->lun_lock); 12473 ctl_done(io); 12474 break; 12475 } 12476 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12477 mtx_unlock(&lun->lun_lock); 12478 ctl_enqueue_rtr(io); 12479 break; 12480 } 12481 case CTL_MSG_FINISH_IO: 12482 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12483 free_io = 0; 12484 ctl_done(io); 12485 } else { 12486 free_io = 1; 12487 mtx_lock(&lun->lun_lock); 12488 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12489 ooa_links); 12490 ctl_check_blocked(lun); 12491 mtx_unlock(&lun->lun_lock); 12492 } 12493 break; 12494 case CTL_MSG_PERS_ACTION: 12495 ctl_hndl_per_res_out_on_other_sc( 12496 (union ctl_ha_msg *)&io->presio.pr_msg); 12497 free_io = 1; 12498 break; 12499 case CTL_MSG_BAD_JUJU: 12500 free_io = 0; 12501 ctl_done(io); 12502 break; 12503 case CTL_MSG_DATAMOVE: 12504 /* Only used in XFER mode */ 12505 free_io = 0; 12506 ctl_datamove_remote(io); 12507 break; 12508 case CTL_MSG_DATAMOVE_DONE: 12509 /* Only used in XFER mode */ 12510 free_io = 0; 12511 io->scsiio.be_move_done(io); 12512 break; 12513 default: 12514 free_io = 1; 12515 printf("%s: Invalid message type %d\n", 12516 __func__, io->io_hdr.msg_type); 12517 break; 12518 } 12519 if (free_io) 12520 ctl_free_io(io); 12521 12522} 12523 12524 12525/* 12526 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12527 * there is no match. 12528 */ 12529static ctl_lun_error_pattern 12530ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12531{ 12532 const struct ctl_cmd_entry *entry; 12533 ctl_lun_error_pattern filtered_pattern, pattern; 12534 12535 pattern = desc->error_pattern; 12536 12537 /* 12538 * XXX KDM we need more data passed into this function to match a 12539 * custom pattern, and we actually need to implement custom pattern 12540 * matching. 12541 */ 12542 if (pattern & CTL_LUN_PAT_CMD) 12543 return (CTL_LUN_PAT_CMD); 12544 12545 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12546 return (CTL_LUN_PAT_ANY); 12547 12548 entry = ctl_get_cmd_entry(ctsio, NULL); 12549 12550 filtered_pattern = entry->pattern & pattern; 12551 12552 /* 12553 * If the user requested specific flags in the pattern (e.g. 12554 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12555 * flags. 12556 * 12557 * If the user did not specify any flags, it doesn't matter whether 12558 * or not the command supports the flags. 12559 */ 12560 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12561 (pattern & ~CTL_LUN_PAT_MASK)) 12562 return (CTL_LUN_PAT_NONE); 12563 12564 /* 12565 * If the user asked for a range check, see if the requested LBA 12566 * range overlaps with this command's LBA range. 12567 */ 12568 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12569 uint64_t lba1; 12570 uint64_t len1; 12571 ctl_action action; 12572 int retval; 12573 12574 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12575 if (retval != 0) 12576 return (CTL_LUN_PAT_NONE); 12577 12578 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12579 desc->lba_range.len); 12580 /* 12581 * A "pass" means that the LBA ranges don't overlap, so 12582 * this doesn't match the user's range criteria. 12583 */ 12584 if (action == CTL_ACTION_PASS) 12585 return (CTL_LUN_PAT_NONE); 12586 } 12587 12588 return (filtered_pattern); 12589} 12590 12591static void 12592ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12593{ 12594 struct ctl_error_desc *desc, *desc2; 12595 12596 mtx_assert(&lun->lun_lock, MA_OWNED); 12597 12598 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12599 ctl_lun_error_pattern pattern; 12600 /* 12601 * Check to see whether this particular command matches 12602 * the pattern in the descriptor. 12603 */ 12604 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12605 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12606 continue; 12607 12608 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12609 case CTL_LUN_INJ_ABORTED: 12610 ctl_set_aborted(&io->scsiio); 12611 break; 12612 case CTL_LUN_INJ_MEDIUM_ERR: 12613 ctl_set_medium_error(&io->scsiio); 12614 break; 12615 case CTL_LUN_INJ_UA: 12616 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12617 * OCCURRED */ 12618 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12619 break; 12620 case CTL_LUN_INJ_CUSTOM: 12621 /* 12622 * We're assuming the user knows what he is doing. 12623 * Just copy the sense information without doing 12624 * checks. 12625 */ 12626 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12627 ctl_min(sizeof(desc->custom_sense), 12628 sizeof(io->scsiio.sense_data))); 12629 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12630 io->scsiio.sense_len = SSD_FULL_SIZE; 12631 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12632 break; 12633 case CTL_LUN_INJ_NONE: 12634 default: 12635 /* 12636 * If this is an error injection type we don't know 12637 * about, clear the continuous flag (if it is set) 12638 * so it will get deleted below. 12639 */ 12640 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12641 break; 12642 } 12643 /* 12644 * By default, each error injection action is a one-shot 12645 */ 12646 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12647 continue; 12648 12649 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12650 12651 free(desc, M_CTL); 12652 } 12653} 12654 12655#ifdef CTL_IO_DELAY 12656static void 12657ctl_datamove_timer_wakeup(void *arg) 12658{ 12659 union ctl_io *io; 12660 12661 io = (union ctl_io *)arg; 12662 12663 ctl_datamove(io); 12664} 12665#endif /* CTL_IO_DELAY */ 12666 12667void 12668ctl_datamove(union ctl_io *io) 12669{ 12670 void (*fe_datamove)(union ctl_io *io); 12671 12672 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12673 12674 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12675 12676#ifdef CTL_TIME_IO 12677 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12678 char str[256]; 12679 char path_str[64]; 12680 struct sbuf sb; 12681 12682 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12683 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12684 12685 sbuf_cat(&sb, path_str); 12686 switch (io->io_hdr.io_type) { 12687 case CTL_IO_SCSI: 12688 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12689 sbuf_printf(&sb, "\n"); 12690 sbuf_cat(&sb, path_str); 12691 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12692 io->scsiio.tag_num, io->scsiio.tag_type); 12693 break; 12694 case CTL_IO_TASK: 12695 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12696 "Tag Type: %d\n", io->taskio.task_action, 12697 io->taskio.tag_num, io->taskio.tag_type); 12698 break; 12699 default: 12700 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12701 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12702 break; 12703 } 12704 sbuf_cat(&sb, path_str); 12705 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12706 (intmax_t)time_uptime - io->io_hdr.start_time); 12707 sbuf_finish(&sb); 12708 printf("%s", sbuf_data(&sb)); 12709 } 12710#endif /* CTL_TIME_IO */ 12711 12712#ifdef CTL_IO_DELAY 12713 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12714 struct ctl_lun *lun; 12715 12716 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12717 12718 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12719 } else { 12720 struct ctl_lun *lun; 12721 12722 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12723 if ((lun != NULL) 12724 && (lun->delay_info.datamove_delay > 0)) { 12725 struct callout *callout; 12726 12727 callout = (struct callout *)&io->io_hdr.timer_bytes; 12728 callout_init(callout, /*mpsafe*/ 1); 12729 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12730 callout_reset(callout, 12731 lun->delay_info.datamove_delay * hz, 12732 ctl_datamove_timer_wakeup, io); 12733 if (lun->delay_info.datamove_type == 12734 CTL_DELAY_TYPE_ONESHOT) 12735 lun->delay_info.datamove_delay = 0; 12736 return; 12737 } 12738 } 12739#endif 12740 12741 /* 12742 * This command has been aborted. Set the port status, so we fail 12743 * the data move. 12744 */ 12745 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12746 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12747 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12748 io->io_hdr.nexus.targ_port, 12749 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12750 io->io_hdr.nexus.targ_lun); 12751 io->io_hdr.port_status = 31337; 12752 /* 12753 * Note that the backend, in this case, will get the 12754 * callback in its context. In other cases it may get 12755 * called in the frontend's interrupt thread context. 12756 */ 12757 io->scsiio.be_move_done(io); 12758 return; 12759 } 12760 12761 /* 12762 * If we're in XFER mode and this I/O is from the other shelf 12763 * controller, we need to send the DMA to the other side to 12764 * actually transfer the data to/from the host. In serialize only 12765 * mode the transfer happens below CTL and ctl_datamove() is only 12766 * called on the machine that originally received the I/O. 12767 */ 12768 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12769 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12770 union ctl_ha_msg msg; 12771 uint32_t sg_entries_sent; 12772 int do_sg_copy; 12773 int i; 12774 12775 memset(&msg, 0, sizeof(msg)); 12776 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12777 msg.hdr.original_sc = io->io_hdr.original_sc; 12778 msg.hdr.serializing_sc = io; 12779 msg.hdr.nexus = io->io_hdr.nexus; 12780 msg.dt.flags = io->io_hdr.flags; 12781 /* 12782 * We convert everything into a S/G list here. We can't 12783 * pass by reference, only by value between controllers. 12784 * So we can't pass a pointer to the S/G list, only as many 12785 * S/G entries as we can fit in here. If it's possible for 12786 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12787 * then we need to break this up into multiple transfers. 12788 */ 12789 if (io->scsiio.kern_sg_entries == 0) { 12790 msg.dt.kern_sg_entries = 1; 12791 /* 12792 * If this is in cached memory, flush the cache 12793 * before we send the DMA request to the other 12794 * controller. We want to do this in either the 12795 * read or the write case. The read case is 12796 * straightforward. In the write case, we want to 12797 * make sure nothing is in the local cache that 12798 * could overwrite the DMAed data. 12799 */ 12800 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12801 /* 12802 * XXX KDM use bus_dmamap_sync() here. 12803 */ 12804 } 12805 12806 /* 12807 * Convert to a physical address if this is a 12808 * virtual address. 12809 */ 12810 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12811 msg.dt.sg_list[0].addr = 12812 io->scsiio.kern_data_ptr; 12813 } else { 12814 /* 12815 * XXX KDM use busdma here! 12816 */ 12817#if 0 12818 msg.dt.sg_list[0].addr = (void *) 12819 vtophys(io->scsiio.kern_data_ptr); 12820#endif 12821 } 12822 12823 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12824 do_sg_copy = 0; 12825 } else { 12826 struct ctl_sg_entry *sgl; 12827 12828 do_sg_copy = 1; 12829 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12830 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12831 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12832 /* 12833 * XXX KDM use bus_dmamap_sync() here. 12834 */ 12835 } 12836 } 12837 12838 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12839 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12840 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12841 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12842 msg.dt.sg_sequence = 0; 12843 12844 /* 12845 * Loop until we've sent all of the S/G entries. On the 12846 * other end, we'll recompose these S/G entries into one 12847 * contiguous list before passing it to the 12848 */ 12849 for (sg_entries_sent = 0; sg_entries_sent < 12850 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12851 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12852 sizeof(msg.dt.sg_list[0])), 12853 msg.dt.kern_sg_entries - sg_entries_sent); 12854 12855 if (do_sg_copy != 0) { 12856 struct ctl_sg_entry *sgl; 12857 int j; 12858 12859 sgl = (struct ctl_sg_entry *) 12860 io->scsiio.kern_data_ptr; 12861 /* 12862 * If this is in cached memory, flush the cache 12863 * before we send the DMA request to the other 12864 * controller. We want to do this in either 12865 * the * read or the write case. The read 12866 * case is straightforward. In the write 12867 * case, we want to make sure nothing is 12868 * in the local cache that could overwrite 12869 * the DMAed data. 12870 */ 12871 12872 for (i = sg_entries_sent, j = 0; 12873 i < msg.dt.cur_sg_entries; i++, j++) { 12874 if ((io->io_hdr.flags & 12875 CTL_FLAG_NO_DATASYNC) == 0) { 12876 /* 12877 * XXX KDM use bus_dmamap_sync() 12878 */ 12879 } 12880 if ((io->io_hdr.flags & 12881 CTL_FLAG_BUS_ADDR) == 0) { 12882 /* 12883 * XXX KDM use busdma. 12884 */ 12885#if 0 12886 msg.dt.sg_list[j].addr =(void *) 12887 vtophys(sgl[i].addr); 12888#endif 12889 } else { 12890 msg.dt.sg_list[j].addr = 12891 sgl[i].addr; 12892 } 12893 msg.dt.sg_list[j].len = sgl[i].len; 12894 } 12895 } 12896 12897 sg_entries_sent += msg.dt.cur_sg_entries; 12898 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12899 msg.dt.sg_last = 1; 12900 else 12901 msg.dt.sg_last = 0; 12902 12903 /* 12904 * XXX KDM drop and reacquire the lock here? 12905 */ 12906 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12907 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12908 /* 12909 * XXX do something here. 12910 */ 12911 } 12912 12913 msg.dt.sent_sg_entries = sg_entries_sent; 12914 } 12915 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12916 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12917 ctl_failover_io(io, /*have_lock*/ 0); 12918 12919 } else { 12920 12921 /* 12922 * Lookup the fe_datamove() function for this particular 12923 * front end. 12924 */ 12925 fe_datamove = 12926 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12927 12928 fe_datamove(io); 12929 } 12930} 12931 12932static void 12933ctl_send_datamove_done(union ctl_io *io, int have_lock) 12934{ 12935 union ctl_ha_msg msg; 12936 int isc_status; 12937 12938 memset(&msg, 0, sizeof(msg)); 12939 12940 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12941 msg.hdr.original_sc = io; 12942 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12943 msg.hdr.nexus = io->io_hdr.nexus; 12944 msg.hdr.status = io->io_hdr.status; 12945 msg.scsi.tag_num = io->scsiio.tag_num; 12946 msg.scsi.tag_type = io->scsiio.tag_type; 12947 msg.scsi.scsi_status = io->scsiio.scsi_status; 12948 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12949 sizeof(io->scsiio.sense_data)); 12950 msg.scsi.sense_len = io->scsiio.sense_len; 12951 msg.scsi.sense_residual = io->scsiio.sense_residual; 12952 msg.scsi.fetd_status = io->io_hdr.port_status; 12953 msg.scsi.residual = io->scsiio.residual; 12954 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12955 12956 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12957 ctl_failover_io(io, /*have_lock*/ have_lock); 12958 return; 12959 } 12960 12961 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12962 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12963 /* XXX do something if this fails */ 12964 } 12965 12966} 12967 12968/* 12969 * The DMA to the remote side is done, now we need to tell the other side 12970 * we're done so it can continue with its data movement. 12971 */ 12972static void 12973ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12974{ 12975 union ctl_io *io; 12976 12977 io = rq->context; 12978 12979 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12980 printf("%s: ISC DMA write failed with error %d", __func__, 12981 rq->ret); 12982 ctl_set_internal_failure(&io->scsiio, 12983 /*sks_valid*/ 1, 12984 /*retry_count*/ rq->ret); 12985 } 12986 12987 ctl_dt_req_free(rq); 12988 12989 /* 12990 * In this case, we had to malloc the memory locally. Free it. 12991 */ 12992 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12993 int i; 12994 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12995 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12996 } 12997 /* 12998 * The data is in local and remote memory, so now we need to send 12999 * status (good or back) back to the other side. 13000 */ 13001 ctl_send_datamove_done(io, /*have_lock*/ 0); 13002} 13003 13004/* 13005 * We've moved the data from the host/controller into local memory. Now we 13006 * need to push it over to the remote controller's memory. 13007 */ 13008static int 13009ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13010{ 13011 int retval; 13012 13013 retval = 0; 13014 13015 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13016 ctl_datamove_remote_write_cb); 13017 13018 return (retval); 13019} 13020 13021static void 13022ctl_datamove_remote_write(union ctl_io *io) 13023{ 13024 int retval; 13025 void (*fe_datamove)(union ctl_io *io); 13026 13027 /* 13028 * - Get the data from the host/HBA into local memory. 13029 * - DMA memory from the local controller to the remote controller. 13030 * - Send status back to the remote controller. 13031 */ 13032 13033 retval = ctl_datamove_remote_sgl_setup(io); 13034 if (retval != 0) 13035 return; 13036 13037 /* Switch the pointer over so the FETD knows what to do */ 13038 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13039 13040 /* 13041 * Use a custom move done callback, since we need to send completion 13042 * back to the other controller, not to the backend on this side. 13043 */ 13044 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13045 13046 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13047 13048 fe_datamove(io); 13049 13050 return; 13051 13052} 13053 13054static int 13055ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13056{ 13057#if 0 13058 char str[256]; 13059 char path_str[64]; 13060 struct sbuf sb; 13061#endif 13062 13063 /* 13064 * In this case, we had to malloc the memory locally. Free it. 13065 */ 13066 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13067 int i; 13068 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13069 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13070 } 13071 13072#if 0 13073 scsi_path_string(io, path_str, sizeof(path_str)); 13074 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13075 sbuf_cat(&sb, path_str); 13076 scsi_command_string(&io->scsiio, NULL, &sb); 13077 sbuf_printf(&sb, "\n"); 13078 sbuf_cat(&sb, path_str); 13079 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13080 io->scsiio.tag_num, io->scsiio.tag_type); 13081 sbuf_cat(&sb, path_str); 13082 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13083 io->io_hdr.flags, io->io_hdr.status); 13084 sbuf_finish(&sb); 13085 printk("%s", sbuf_data(&sb)); 13086#endif 13087 13088 13089 /* 13090 * The read is done, now we need to send status (good or bad) back 13091 * to the other side. 13092 */ 13093 ctl_send_datamove_done(io, /*have_lock*/ 0); 13094 13095 return (0); 13096} 13097 13098static void 13099ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13100{ 13101 union ctl_io *io; 13102 void (*fe_datamove)(union ctl_io *io); 13103 13104 io = rq->context; 13105 13106 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13107 printf("%s: ISC DMA read failed with error %d", __func__, 13108 rq->ret); 13109 ctl_set_internal_failure(&io->scsiio, 13110 /*sks_valid*/ 1, 13111 /*retry_count*/ rq->ret); 13112 } 13113 13114 ctl_dt_req_free(rq); 13115 13116 /* Switch the pointer over so the FETD knows what to do */ 13117 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13118 13119 /* 13120 * Use a custom move done callback, since we need to send completion 13121 * back to the other controller, not to the backend on this side. 13122 */ 13123 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13124 13125 /* XXX KDM add checks like the ones in ctl_datamove? */ 13126 13127 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13128 13129 fe_datamove(io); 13130} 13131 13132static int 13133ctl_datamove_remote_sgl_setup(union ctl_io *io) 13134{ 13135 struct ctl_sg_entry *local_sglist, *remote_sglist; 13136 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13137 struct ctl_softc *softc; 13138 int retval; 13139 int i; 13140 13141 retval = 0; 13142 softc = control_softc; 13143 13144 local_sglist = io->io_hdr.local_sglist; 13145 local_dma_sglist = io->io_hdr.local_dma_sglist; 13146 remote_sglist = io->io_hdr.remote_sglist; 13147 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13148 13149 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13150 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13151 local_sglist[i].len = remote_sglist[i].len; 13152 13153 /* 13154 * XXX Detect the situation where the RS-level I/O 13155 * redirector on the other side has already read the 13156 * data off of the AOR RS on this side, and 13157 * transferred it to remote (mirror) memory on the 13158 * other side. Since we already have the data in 13159 * memory here, we just need to use it. 13160 * 13161 * XXX KDM this can probably be removed once we 13162 * get the cache device code in and take the 13163 * current AOR implementation out. 13164 */ 13165#ifdef NEEDTOPORT 13166 if ((remote_sglist[i].addr >= 13167 (void *)vtophys(softc->mirr->addr)) 13168 && (remote_sglist[i].addr < 13169 ((void *)vtophys(softc->mirr->addr) + 13170 CacheMirrorOffset))) { 13171 local_sglist[i].addr = remote_sglist[i].addr - 13172 CacheMirrorOffset; 13173 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13174 CTL_FLAG_DATA_IN) 13175 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13176 } else { 13177 local_sglist[i].addr = remote_sglist[i].addr + 13178 CacheMirrorOffset; 13179 } 13180#endif 13181#if 0 13182 printf("%s: local %p, remote %p, len %d\n", 13183 __func__, local_sglist[i].addr, 13184 remote_sglist[i].addr, local_sglist[i].len); 13185#endif 13186 } 13187 } else { 13188 uint32_t len_to_go; 13189 13190 /* 13191 * In this case, we don't have automatically allocated 13192 * memory for this I/O on this controller. This typically 13193 * happens with internal CTL I/O -- e.g. inquiry, mode 13194 * sense, etc. Anything coming from RAIDCore will have 13195 * a mirror area available. 13196 */ 13197 len_to_go = io->scsiio.kern_data_len; 13198 13199 /* 13200 * Clear the no datasync flag, we have to use malloced 13201 * buffers. 13202 */ 13203 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13204 13205 /* 13206 * The difficult thing here is that the size of the various 13207 * S/G segments may be different than the size from the 13208 * remote controller. That'll make it harder when DMAing 13209 * the data back to the other side. 13210 */ 13211 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13212 sizeof(io->io_hdr.remote_sglist[0])) && 13213 (len_to_go > 0); i++) { 13214 local_sglist[i].len = ctl_min(len_to_go, 131072); 13215 CTL_SIZE_8B(local_dma_sglist[i].len, 13216 local_sglist[i].len); 13217 local_sglist[i].addr = 13218 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13219 13220 local_dma_sglist[i].addr = local_sglist[i].addr; 13221 13222 if (local_sglist[i].addr == NULL) { 13223 int j; 13224 13225 printf("malloc failed for %zd bytes!", 13226 local_dma_sglist[i].len); 13227 for (j = 0; j < i; j++) { 13228 free(local_sglist[j].addr, M_CTL); 13229 } 13230 ctl_set_internal_failure(&io->scsiio, 13231 /*sks_valid*/ 1, 13232 /*retry_count*/ 4857); 13233 retval = 1; 13234 goto bailout_error; 13235 13236 } 13237 /* XXX KDM do we need a sync here? */ 13238 13239 len_to_go -= local_sglist[i].len; 13240 } 13241 /* 13242 * Reset the number of S/G entries accordingly. The 13243 * original number of S/G entries is available in 13244 * rem_sg_entries. 13245 */ 13246 io->scsiio.kern_sg_entries = i; 13247 13248#if 0 13249 printf("%s: kern_sg_entries = %d\n", __func__, 13250 io->scsiio.kern_sg_entries); 13251 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13252 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13253 local_sglist[i].addr, local_sglist[i].len, 13254 local_dma_sglist[i].len); 13255#endif 13256 } 13257 13258 13259 return (retval); 13260 13261bailout_error: 13262 13263 ctl_send_datamove_done(io, /*have_lock*/ 0); 13264 13265 return (retval); 13266} 13267 13268static int 13269ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13270 ctl_ha_dt_cb callback) 13271{ 13272 struct ctl_ha_dt_req *rq; 13273 struct ctl_sg_entry *remote_sglist, *local_sglist; 13274 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13275 uint32_t local_used, remote_used, total_used; 13276 int retval; 13277 int i, j; 13278 13279 retval = 0; 13280 13281 rq = ctl_dt_req_alloc(); 13282 13283 /* 13284 * If we failed to allocate the request, and if the DMA didn't fail 13285 * anyway, set busy status. This is just a resource allocation 13286 * failure. 13287 */ 13288 if ((rq == NULL) 13289 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13290 ctl_set_busy(&io->scsiio); 13291 13292 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13293 13294 if (rq != NULL) 13295 ctl_dt_req_free(rq); 13296 13297 /* 13298 * The data move failed. We need to return status back 13299 * to the other controller. No point in trying to DMA 13300 * data to the remote controller. 13301 */ 13302 13303 ctl_send_datamove_done(io, /*have_lock*/ 0); 13304 13305 retval = 1; 13306 13307 goto bailout; 13308 } 13309 13310 local_sglist = io->io_hdr.local_sglist; 13311 local_dma_sglist = io->io_hdr.local_dma_sglist; 13312 remote_sglist = io->io_hdr.remote_sglist; 13313 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13314 local_used = 0; 13315 remote_used = 0; 13316 total_used = 0; 13317 13318 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13319 rq->ret = CTL_HA_STATUS_SUCCESS; 13320 rq->context = io; 13321 callback(rq); 13322 goto bailout; 13323 } 13324 13325 /* 13326 * Pull/push the data over the wire from/to the other controller. 13327 * This takes into account the possibility that the local and 13328 * remote sglists may not be identical in terms of the size of 13329 * the elements and the number of elements. 13330 * 13331 * One fundamental assumption here is that the length allocated for 13332 * both the local and remote sglists is identical. Otherwise, we've 13333 * essentially got a coding error of some sort. 13334 */ 13335 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13336 int isc_ret; 13337 uint32_t cur_len, dma_length; 13338 uint8_t *tmp_ptr; 13339 13340 rq->id = CTL_HA_DATA_CTL; 13341 rq->command = command; 13342 rq->context = io; 13343 13344 /* 13345 * Both pointers should be aligned. But it is possible 13346 * that the allocation length is not. They should both 13347 * also have enough slack left over at the end, though, 13348 * to round up to the next 8 byte boundary. 13349 */ 13350 cur_len = ctl_min(local_sglist[i].len - local_used, 13351 remote_sglist[j].len - remote_used); 13352 13353 /* 13354 * In this case, we have a size issue and need to decrease 13355 * the size, except in the case where we actually have less 13356 * than 8 bytes left. In that case, we need to increase 13357 * the DMA length to get the last bit. 13358 */ 13359 if ((cur_len & 0x7) != 0) { 13360 if (cur_len > 0x7) { 13361 cur_len = cur_len - (cur_len & 0x7); 13362 dma_length = cur_len; 13363 } else { 13364 CTL_SIZE_8B(dma_length, cur_len); 13365 } 13366 13367 } else 13368 dma_length = cur_len; 13369 13370 /* 13371 * If we had to allocate memory for this I/O, instead of using 13372 * the non-cached mirror memory, we'll need to flush the cache 13373 * before trying to DMA to the other controller. 13374 * 13375 * We could end up doing this multiple times for the same 13376 * segment if we have a larger local segment than remote 13377 * segment. That shouldn't be an issue. 13378 */ 13379 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13380 /* 13381 * XXX KDM use bus_dmamap_sync() here. 13382 */ 13383 } 13384 13385 rq->size = dma_length; 13386 13387 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13388 tmp_ptr += local_used; 13389 13390 /* Use physical addresses when talking to ISC hardware */ 13391 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13392 /* XXX KDM use busdma */ 13393#if 0 13394 rq->local = vtophys(tmp_ptr); 13395#endif 13396 } else 13397 rq->local = tmp_ptr; 13398 13399 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13400 tmp_ptr += remote_used; 13401 rq->remote = tmp_ptr; 13402 13403 rq->callback = NULL; 13404 13405 local_used += cur_len; 13406 if (local_used >= local_sglist[i].len) { 13407 i++; 13408 local_used = 0; 13409 } 13410 13411 remote_used += cur_len; 13412 if (remote_used >= remote_sglist[j].len) { 13413 j++; 13414 remote_used = 0; 13415 } 13416 total_used += cur_len; 13417 13418 if (total_used >= io->scsiio.kern_data_len) 13419 rq->callback = callback; 13420 13421 if ((rq->size & 0x7) != 0) { 13422 printf("%s: warning: size %d is not on 8b boundary\n", 13423 __func__, rq->size); 13424 } 13425 if (((uintptr_t)rq->local & 0x7) != 0) { 13426 printf("%s: warning: local %p not on 8b boundary\n", 13427 __func__, rq->local); 13428 } 13429 if (((uintptr_t)rq->remote & 0x7) != 0) { 13430 printf("%s: warning: remote %p not on 8b boundary\n", 13431 __func__, rq->local); 13432 } 13433#if 0 13434 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13435 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13436 rq->local, rq->remote, rq->size); 13437#endif 13438 13439 isc_ret = ctl_dt_single(rq); 13440 if (isc_ret == CTL_HA_STATUS_WAIT) 13441 continue; 13442 13443 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13444 rq->ret = CTL_HA_STATUS_SUCCESS; 13445 } else { 13446 rq->ret = isc_ret; 13447 } 13448 callback(rq); 13449 goto bailout; 13450 } 13451 13452bailout: 13453 return (retval); 13454 13455} 13456 13457static void 13458ctl_datamove_remote_read(union ctl_io *io) 13459{ 13460 int retval; 13461 int i; 13462 13463 /* 13464 * This will send an error to the other controller in the case of a 13465 * failure. 13466 */ 13467 retval = ctl_datamove_remote_sgl_setup(io); 13468 if (retval != 0) 13469 return; 13470 13471 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13472 ctl_datamove_remote_read_cb); 13473 if ((retval != 0) 13474 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13475 /* 13476 * Make sure we free memory if there was an error.. The 13477 * ctl_datamove_remote_xfer() function will send the 13478 * datamove done message, or call the callback with an 13479 * error if there is a problem. 13480 */ 13481 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13482 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13483 } 13484 13485 return; 13486} 13487 13488/* 13489 * Process a datamove request from the other controller. This is used for 13490 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13491 * first. Once that is complete, the data gets DMAed into the remote 13492 * controller's memory. For reads, we DMA from the remote controller's 13493 * memory into our memory first, and then move it out to the FETD. 13494 */ 13495static void 13496ctl_datamove_remote(union ctl_io *io) 13497{ 13498 struct ctl_softc *softc; 13499 13500 softc = control_softc; 13501 13502 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13503 13504 /* 13505 * Note that we look for an aborted I/O here, but don't do some of 13506 * the other checks that ctl_datamove() normally does. 13507 * We don't need to run the datamove delay code, since that should 13508 * have been done if need be on the other controller. 13509 */ 13510 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13511 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13512 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13513 io->io_hdr.nexus.targ_port, 13514 io->io_hdr.nexus.targ_target.id, 13515 io->io_hdr.nexus.targ_lun); 13516 io->io_hdr.port_status = 31338; 13517 ctl_send_datamove_done(io, /*have_lock*/ 0); 13518 return; 13519 } 13520 13521 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13522 ctl_datamove_remote_write(io); 13523 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13524 ctl_datamove_remote_read(io); 13525 } else { 13526 union ctl_ha_msg msg; 13527 struct scsi_sense_data *sense; 13528 uint8_t sks[3]; 13529 int retry_count; 13530 13531 memset(&msg, 0, sizeof(msg)); 13532 13533 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13534 msg.hdr.status = CTL_SCSI_ERROR; 13535 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13536 13537 retry_count = 4243; 13538 13539 sense = &msg.scsi.sense_data; 13540 sks[0] = SSD_SCS_VALID; 13541 sks[1] = (retry_count >> 8) & 0xff; 13542 sks[2] = retry_count & 0xff; 13543 13544 /* "Internal target failure" */ 13545 scsi_set_sense_data(sense, 13546 /*sense_format*/ SSD_TYPE_NONE, 13547 /*current_error*/ 1, 13548 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13549 /*asc*/ 0x44, 13550 /*ascq*/ 0x00, 13551 /*type*/ SSD_ELEM_SKS, 13552 /*size*/ sizeof(sks), 13553 /*data*/ sks, 13554 SSD_ELEM_NONE); 13555 13556 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13557 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13558 ctl_failover_io(io, /*have_lock*/ 1); 13559 return; 13560 } 13561 13562 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13563 CTL_HA_STATUS_SUCCESS) { 13564 /* XXX KDM what to do if this fails? */ 13565 } 13566 return; 13567 } 13568 13569} 13570 13571static int 13572ctl_process_done(union ctl_io *io) 13573{ 13574 struct ctl_lun *lun; 13575 struct ctl_softc *ctl_softc; 13576 void (*fe_done)(union ctl_io *io); 13577 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13578 13579 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13580 13581 fe_done = 13582 control_softc->ctl_ports[targ_port]->fe_done; 13583 13584#ifdef CTL_TIME_IO 13585 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13586 char str[256]; 13587 char path_str[64]; 13588 struct sbuf sb; 13589 13590 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13591 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13592 13593 sbuf_cat(&sb, path_str); 13594 switch (io->io_hdr.io_type) { 13595 case CTL_IO_SCSI: 13596 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13597 sbuf_printf(&sb, "\n"); 13598 sbuf_cat(&sb, path_str); 13599 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13600 io->scsiio.tag_num, io->scsiio.tag_type); 13601 break; 13602 case CTL_IO_TASK: 13603 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13604 "Tag Type: %d\n", io->taskio.task_action, 13605 io->taskio.tag_num, io->taskio.tag_type); 13606 break; 13607 default: 13608 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13609 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13610 break; 13611 } 13612 sbuf_cat(&sb, path_str); 13613 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13614 (intmax_t)time_uptime - io->io_hdr.start_time); 13615 sbuf_finish(&sb); 13616 printf("%s", sbuf_data(&sb)); 13617 } 13618#endif /* CTL_TIME_IO */ 13619 13620 switch (io->io_hdr.io_type) { 13621 case CTL_IO_SCSI: 13622 break; 13623 case CTL_IO_TASK: 13624 if (bootverbose || verbose > 0) 13625 ctl_io_error_print(io, NULL); 13626 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13627 ctl_free_io(io); 13628 else 13629 fe_done(io); 13630 return (CTL_RETVAL_COMPLETE); 13631 break; 13632 default: 13633 printf("ctl_process_done: invalid io type %d\n", 13634 io->io_hdr.io_type); 13635 panic("ctl_process_done: invalid io type %d\n", 13636 io->io_hdr.io_type); 13637 break; /* NOTREACHED */ 13638 } 13639 13640 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13641 if (lun == NULL) { 13642 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13643 io->io_hdr.nexus.targ_mapped_lun)); 13644 fe_done(io); 13645 goto bailout; 13646 } 13647 ctl_softc = lun->ctl_softc; 13648 13649 mtx_lock(&lun->lun_lock); 13650 13651 /* 13652 * Check to see if we have any errors to inject here. We only 13653 * inject errors for commands that don't already have errors set. 13654 */ 13655 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13656 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13657 ctl_inject_error(lun, io); 13658 13659 /* 13660 * XXX KDM how do we treat commands that aren't completed 13661 * successfully? 13662 * 13663 * XXX KDM should we also track I/O latency? 13664 */ 13665 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13666 io->io_hdr.io_type == CTL_IO_SCSI) { 13667#ifdef CTL_TIME_IO 13668 struct bintime cur_bt; 13669#endif 13670 int type; 13671 13672 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13673 CTL_FLAG_DATA_IN) 13674 type = CTL_STATS_READ; 13675 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13676 CTL_FLAG_DATA_OUT) 13677 type = CTL_STATS_WRITE; 13678 else 13679 type = CTL_STATS_NO_IO; 13680 13681 lun->stats.ports[targ_port].bytes[type] += 13682 io->scsiio.kern_total_len; 13683 lun->stats.ports[targ_port].operations[type]++; 13684#ifdef CTL_TIME_IO 13685 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13686 &io->io_hdr.dma_bt); 13687 lun->stats.ports[targ_port].num_dmas[type] += 13688 io->io_hdr.num_dmas; 13689 getbintime(&cur_bt); 13690 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13691 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13692#endif 13693 } 13694 13695 /* 13696 * Remove this from the OOA queue. 13697 */ 13698 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13699 13700 /* 13701 * Run through the blocked queue on this LUN and see if anything 13702 * has become unblocked, now that this transaction is done. 13703 */ 13704 ctl_check_blocked(lun); 13705 13706 /* 13707 * If the LUN has been invalidated, free it if there is nothing 13708 * left on its OOA queue. 13709 */ 13710 if ((lun->flags & CTL_LUN_INVALID) 13711 && TAILQ_EMPTY(&lun->ooa_queue)) { 13712 mtx_unlock(&lun->lun_lock); 13713 mtx_lock(&ctl_softc->ctl_lock); 13714 ctl_free_lun(lun); 13715 mtx_unlock(&ctl_softc->ctl_lock); 13716 } else 13717 mtx_unlock(&lun->lun_lock); 13718 13719 /* 13720 * If this command has been aborted, make sure we set the status 13721 * properly. The FETD is responsible for freeing the I/O and doing 13722 * whatever it needs to do to clean up its state. 13723 */ 13724 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13725 ctl_set_task_aborted(&io->scsiio); 13726 13727 /* 13728 * We print out status for every task management command. For SCSI 13729 * commands, we filter out any unit attention errors; they happen 13730 * on every boot, and would clutter up the log. Note: task 13731 * management commands aren't printed here, they are printed above, 13732 * since they should never even make it down here. 13733 */ 13734 switch (io->io_hdr.io_type) { 13735 case CTL_IO_SCSI: { 13736 int error_code, sense_key, asc, ascq; 13737 13738 sense_key = 0; 13739 13740 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13741 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13742 /* 13743 * Since this is just for printing, no need to 13744 * show errors here. 13745 */ 13746 scsi_extract_sense_len(&io->scsiio.sense_data, 13747 io->scsiio.sense_len, 13748 &error_code, 13749 &sense_key, 13750 &asc, 13751 &ascq, 13752 /*show_errors*/ 0); 13753 } 13754 13755 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13756 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13757 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13758 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13759 13760 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13761 ctl_softc->skipped_prints++; 13762 } else { 13763 uint32_t skipped_prints; 13764 13765 skipped_prints = ctl_softc->skipped_prints; 13766 13767 ctl_softc->skipped_prints = 0; 13768 ctl_softc->last_print_jiffies = time_uptime; 13769 13770 if (skipped_prints > 0) { 13771#ifdef NEEDTOPORT 13772 csevent_log(CSC_CTL | CSC_SHELF_SW | 13773 CTL_ERROR_REPORT, 13774 csevent_LogType_Trace, 13775 csevent_Severity_Information, 13776 csevent_AlertLevel_Green, 13777 csevent_FRU_Firmware, 13778 csevent_FRU_Unknown, 13779 "High CTL error volume, %d prints " 13780 "skipped", skipped_prints); 13781#endif 13782 } 13783 if (bootverbose || verbose > 0) 13784 ctl_io_error_print(io, NULL); 13785 } 13786 } 13787 break; 13788 } 13789 case CTL_IO_TASK: 13790 if (bootverbose || verbose > 0) 13791 ctl_io_error_print(io, NULL); 13792 break; 13793 default: 13794 break; 13795 } 13796 13797 /* 13798 * Tell the FETD or the other shelf controller we're done with this 13799 * command. Note that only SCSI commands get to this point. Task 13800 * management commands are completed above. 13801 * 13802 * We only send status to the other controller if we're in XFER 13803 * mode. In SER_ONLY mode, the I/O is done on the controller that 13804 * received the I/O (from CTL's perspective), and so the status is 13805 * generated there. 13806 * 13807 * XXX KDM if we hold the lock here, we could cause a deadlock 13808 * if the frontend comes back in in this context to queue 13809 * something. 13810 */ 13811 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13812 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13813 union ctl_ha_msg msg; 13814 13815 memset(&msg, 0, sizeof(msg)); 13816 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13817 msg.hdr.original_sc = io->io_hdr.original_sc; 13818 msg.hdr.nexus = io->io_hdr.nexus; 13819 msg.hdr.status = io->io_hdr.status; 13820 msg.scsi.scsi_status = io->scsiio.scsi_status; 13821 msg.scsi.tag_num = io->scsiio.tag_num; 13822 msg.scsi.tag_type = io->scsiio.tag_type; 13823 msg.scsi.sense_len = io->scsiio.sense_len; 13824 msg.scsi.sense_residual = io->scsiio.sense_residual; 13825 msg.scsi.residual = io->scsiio.residual; 13826 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13827 sizeof(io->scsiio.sense_data)); 13828 /* 13829 * We copy this whether or not this is an I/O-related 13830 * command. Otherwise, we'd have to go and check to see 13831 * whether it's a read/write command, and it really isn't 13832 * worth it. 13833 */ 13834 memcpy(&msg.scsi.lbalen, 13835 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13836 sizeof(msg.scsi.lbalen)); 13837 13838 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13839 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13840 /* XXX do something here */ 13841 } 13842 13843 ctl_free_io(io); 13844 } else 13845 fe_done(io); 13846 13847bailout: 13848 13849 return (CTL_RETVAL_COMPLETE); 13850} 13851 13852#ifdef CTL_WITH_CA 13853/* 13854 * Front end should call this if it doesn't do autosense. When the request 13855 * sense comes back in from the initiator, we'll dequeue this and send it. 13856 */ 13857int 13858ctl_queue_sense(union ctl_io *io) 13859{ 13860 struct ctl_lun *lun; 13861 struct ctl_softc *ctl_softc; 13862 uint32_t initidx, targ_lun; 13863 13864 ctl_softc = control_softc; 13865 13866 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13867 13868 /* 13869 * LUN lookup will likely move to the ctl_work_thread() once we 13870 * have our new queueing infrastructure (that doesn't put things on 13871 * a per-LUN queue initially). That is so that we can handle 13872 * things like an INQUIRY to a LUN that we don't have enabled. We 13873 * can't deal with that right now. 13874 */ 13875 mtx_lock(&ctl_softc->ctl_lock); 13876 13877 /* 13878 * If we don't have a LUN for this, just toss the sense 13879 * information. 13880 */ 13881 targ_lun = io->io_hdr.nexus.targ_lun; 13882 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13883 if ((targ_lun < CTL_MAX_LUNS) 13884 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13885 lun = ctl_softc->ctl_luns[targ_lun]; 13886 else 13887 goto bailout; 13888 13889 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13890 13891 mtx_lock(&lun->lun_lock); 13892 /* 13893 * Already have CA set for this LUN...toss the sense information. 13894 */ 13895 if (ctl_is_set(lun->have_ca, initidx)) { 13896 mtx_unlock(&lun->lun_lock); 13897 goto bailout; 13898 } 13899 13900 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13901 ctl_min(sizeof(lun->pending_sense[initidx]), 13902 sizeof(io->scsiio.sense_data))); 13903 ctl_set_mask(lun->have_ca, initidx); 13904 mtx_unlock(&lun->lun_lock); 13905 13906bailout: 13907 mtx_unlock(&ctl_softc->ctl_lock); 13908 13909 ctl_free_io(io); 13910 13911 return (CTL_RETVAL_COMPLETE); 13912} 13913#endif 13914 13915/* 13916 * Primary command inlet from frontend ports. All SCSI and task I/O 13917 * requests must go through this function. 13918 */ 13919int 13920ctl_queue(union ctl_io *io) 13921{ 13922 struct ctl_softc *ctl_softc; 13923 13924 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13925 13926 ctl_softc = control_softc; 13927 13928#ifdef CTL_TIME_IO 13929 io->io_hdr.start_time = time_uptime; 13930 getbintime(&io->io_hdr.start_bt); 13931#endif /* CTL_TIME_IO */ 13932 13933 /* Map FE-specific LUN ID into global one. */ 13934 io->io_hdr.nexus.targ_mapped_lun = 13935 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13936 13937 switch (io->io_hdr.io_type) { 13938 case CTL_IO_SCSI: 13939 case CTL_IO_TASK: 13940 ctl_enqueue_incoming(io); 13941 break; 13942 default: 13943 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13944 return (EINVAL); 13945 } 13946 13947 return (CTL_RETVAL_COMPLETE); 13948} 13949 13950#ifdef CTL_IO_DELAY 13951static void 13952ctl_done_timer_wakeup(void *arg) 13953{ 13954 union ctl_io *io; 13955 13956 io = (union ctl_io *)arg; 13957 ctl_done(io); 13958} 13959#endif /* CTL_IO_DELAY */ 13960 13961void 13962ctl_done(union ctl_io *io) 13963{ 13964 struct ctl_softc *ctl_softc; 13965 13966 ctl_softc = control_softc; 13967 13968 /* 13969 * Enable this to catch duplicate completion issues. 13970 */ 13971#if 0 13972 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13973 printf("%s: type %d msg %d cdb %x iptl: " 13974 "%d:%d:%d:%d tag 0x%04x " 13975 "flag %#x status %x\n", 13976 __func__, 13977 io->io_hdr.io_type, 13978 io->io_hdr.msg_type, 13979 io->scsiio.cdb[0], 13980 io->io_hdr.nexus.initid.id, 13981 io->io_hdr.nexus.targ_port, 13982 io->io_hdr.nexus.targ_target.id, 13983 io->io_hdr.nexus.targ_lun, 13984 (io->io_hdr.io_type == 13985 CTL_IO_TASK) ? 13986 io->taskio.tag_num : 13987 io->scsiio.tag_num, 13988 io->io_hdr.flags, 13989 io->io_hdr.status); 13990 } else 13991 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13992#endif 13993 13994 /* 13995 * This is an internal copy of an I/O, and should not go through 13996 * the normal done processing logic. 13997 */ 13998 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13999 return; 14000 14001 /* 14002 * We need to send a msg to the serializing shelf to finish the IO 14003 * as well. We don't send a finish message to the other shelf if 14004 * this is a task management command. Task management commands 14005 * aren't serialized in the OOA queue, but rather just executed on 14006 * both shelf controllers for commands that originated on that 14007 * controller. 14008 */ 14009 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14010 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14011 union ctl_ha_msg msg_io; 14012 14013 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14014 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14015 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14016 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14017 } 14018 /* continue on to finish IO */ 14019 } 14020#ifdef CTL_IO_DELAY 14021 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14022 struct ctl_lun *lun; 14023 14024 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14025 14026 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14027 } else { 14028 struct ctl_lun *lun; 14029 14030 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14031 14032 if ((lun != NULL) 14033 && (lun->delay_info.done_delay > 0)) { 14034 struct callout *callout; 14035 14036 callout = (struct callout *)&io->io_hdr.timer_bytes; 14037 callout_init(callout, /*mpsafe*/ 1); 14038 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14039 callout_reset(callout, 14040 lun->delay_info.done_delay * hz, 14041 ctl_done_timer_wakeup, io); 14042 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14043 lun->delay_info.done_delay = 0; 14044 return; 14045 } 14046 } 14047#endif /* CTL_IO_DELAY */ 14048 14049 ctl_enqueue_done(io); 14050} 14051 14052int 14053ctl_isc(struct ctl_scsiio *ctsio) 14054{ 14055 struct ctl_lun *lun; 14056 int retval; 14057 14058 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14059 14060 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14061 14062 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14063 14064 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14065 14066 return (retval); 14067} 14068 14069 14070static void 14071ctl_work_thread(void *arg) 14072{ 14073 struct ctl_thread *thr = (struct ctl_thread *)arg; 14074 struct ctl_softc *softc = thr->ctl_softc; 14075 union ctl_io *io; 14076 int retval; 14077 14078 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14079 14080 for (;;) { 14081 retval = 0; 14082 14083 /* 14084 * We handle the queues in this order: 14085 * - ISC 14086 * - done queue (to free up resources, unblock other commands) 14087 * - RtR queue 14088 * - incoming queue 14089 * 14090 * If those queues are empty, we break out of the loop and 14091 * go to sleep. 14092 */ 14093 mtx_lock(&thr->queue_lock); 14094 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14095 if (io != NULL) { 14096 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14097 mtx_unlock(&thr->queue_lock); 14098 ctl_handle_isc(io); 14099 continue; 14100 } 14101 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14102 if (io != NULL) { 14103 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14104 /* clear any blocked commands, call fe_done */ 14105 mtx_unlock(&thr->queue_lock); 14106 retval = ctl_process_done(io); 14107 continue; 14108 } 14109 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14110 if (io != NULL) { 14111 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14112 mtx_unlock(&thr->queue_lock); 14113 if (io->io_hdr.io_type == CTL_IO_TASK) 14114 ctl_run_task(io); 14115 else 14116 ctl_scsiio_precheck(softc, &io->scsiio); 14117 continue; 14118 } 14119 if (!ctl_pause_rtr) { 14120 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14121 if (io != NULL) { 14122 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14123 mtx_unlock(&thr->queue_lock); 14124 retval = ctl_scsiio(&io->scsiio); 14125 if (retval != CTL_RETVAL_COMPLETE) 14126 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14127 continue; 14128 } 14129 } 14130 14131 /* Sleep until we have something to do. */ 14132 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14133 } 14134} 14135 14136static void 14137ctl_lun_thread(void *arg) 14138{ 14139 struct ctl_softc *softc = (struct ctl_softc *)arg; 14140 struct ctl_be_lun *be_lun; 14141 int retval; 14142 14143 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14144 14145 for (;;) { 14146 retval = 0; 14147 mtx_lock(&softc->ctl_lock); 14148 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14149 if (be_lun != NULL) { 14150 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14151 mtx_unlock(&softc->ctl_lock); 14152 ctl_create_lun(be_lun); 14153 continue; 14154 } 14155 14156 /* Sleep until we have something to do. */ 14157 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14158 PDROP | PRIBIO, "-", 0); 14159 } 14160} 14161 14162static void 14163ctl_enqueue_incoming(union ctl_io *io) 14164{ 14165 struct ctl_softc *softc = control_softc; 14166 struct ctl_thread *thr; 14167 u_int idx; 14168 14169 idx = (io->io_hdr.nexus.targ_port * 127 + 14170 io->io_hdr.nexus.initid.id) % worker_threads; 14171 thr = &softc->threads[idx]; 14172 mtx_lock(&thr->queue_lock); 14173 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14174 mtx_unlock(&thr->queue_lock); 14175 wakeup(thr); 14176} 14177 14178static void 14179ctl_enqueue_rtr(union ctl_io *io) 14180{ 14181 struct ctl_softc *softc = control_softc; 14182 struct ctl_thread *thr; 14183 14184 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14185 mtx_lock(&thr->queue_lock); 14186 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14187 mtx_unlock(&thr->queue_lock); 14188 wakeup(thr); 14189} 14190 14191static void 14192ctl_enqueue_done(union ctl_io *io) 14193{ 14194 struct ctl_softc *softc = control_softc; 14195 struct ctl_thread *thr; 14196 14197 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14198 mtx_lock(&thr->queue_lock); 14199 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14200 mtx_unlock(&thr->queue_lock); 14201 wakeup(thr); 14202} 14203 14204static void 14205ctl_enqueue_isc(union ctl_io *io) 14206{ 14207 struct ctl_softc *softc = control_softc; 14208 struct ctl_thread *thr; 14209 14210 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14211 mtx_lock(&thr->queue_lock); 14212 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14213 mtx_unlock(&thr->queue_lock); 14214 wakeup(thr); 14215} 14216 14217/* Initialization and failover */ 14218 14219void 14220ctl_init_isc_msg(void) 14221{ 14222 printf("CTL: Still calling this thing\n"); 14223} 14224 14225/* 14226 * Init component 14227 * Initializes component into configuration defined by bootMode 14228 * (see hasc-sv.c) 14229 * returns hasc_Status: 14230 * OK 14231 * ERROR - fatal error 14232 */ 14233static ctl_ha_comp_status 14234ctl_isc_init(struct ctl_ha_component *c) 14235{ 14236 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14237 14238 c->status = ret; 14239 return ret; 14240} 14241 14242/* Start component 14243 * Starts component in state requested. If component starts successfully, 14244 * it must set its own state to the requestrd state 14245 * When requested state is HASC_STATE_HA, the component may refine it 14246 * by adding _SLAVE or _MASTER flags. 14247 * Currently allowed state transitions are: 14248 * UNKNOWN->HA - initial startup 14249 * UNKNOWN->SINGLE - initial startup when no parter detected 14250 * HA->SINGLE - failover 14251 * returns ctl_ha_comp_status: 14252 * OK - component successfully started in requested state 14253 * FAILED - could not start the requested state, failover may 14254 * be possible 14255 * ERROR - fatal error detected, no future startup possible 14256 */ 14257static ctl_ha_comp_status 14258ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14259{ 14260 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14261 14262 printf("%s: go\n", __func__); 14263 14264 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14265 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14266 ctl_is_single = 0; 14267 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14268 != CTL_HA_STATUS_SUCCESS) { 14269 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14270 ret = CTL_HA_COMP_STATUS_ERROR; 14271 } 14272 } else if (CTL_HA_STATE_IS_HA(c->state) 14273 && CTL_HA_STATE_IS_SINGLE(state)){ 14274 // HA->SINGLE transition 14275 ctl_failover(); 14276 ctl_is_single = 1; 14277 } else { 14278 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14279 c->state, state); 14280 ret = CTL_HA_COMP_STATUS_ERROR; 14281 } 14282 if (CTL_HA_STATE_IS_SINGLE(state)) 14283 ctl_is_single = 1; 14284 14285 c->state = state; 14286 c->status = ret; 14287 return ret; 14288} 14289 14290/* 14291 * Quiesce component 14292 * The component must clear any error conditions (set status to OK) and 14293 * prepare itself to another Start call 14294 * returns ctl_ha_comp_status: 14295 * OK 14296 * ERROR 14297 */ 14298static ctl_ha_comp_status 14299ctl_isc_quiesce(struct ctl_ha_component *c) 14300{ 14301 int ret = CTL_HA_COMP_STATUS_OK; 14302 14303 ctl_pause_rtr = 1; 14304 c->status = ret; 14305 return ret; 14306} 14307 14308struct ctl_ha_component ctl_ha_component_ctlisc = 14309{ 14310 .name = "CTL ISC", 14311 .state = CTL_HA_STATE_UNKNOWN, 14312 .init = ctl_isc_init, 14313 .start = ctl_isc_start, 14314 .quiesce = ctl_isc_quiesce 14315}; 14316 14317/* 14318 * vim: ts=8 14319 */ 14320