ctl.c revision 272748
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 272748 2014-10-08 12:24:24Z 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->per_res[idx].registered == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)scsi_8btou64( 2998 lun->per_res[idx].res_key.key)); 2999 } 3000 } 3001 } 3002 printf("CTL Persistent Reservation information end\n"); 3003 printf("CTL Ports:\n"); 3004 STAILQ_FOREACH(port, &softc->port_list, links) { 3005 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3006 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3007 port->frontend->name, port->port_type, 3008 port->physical_port, port->virtual_port, 3009 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3010 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3011 if (port->wwpn_iid[j].in_use == 0 && 3012 port->wwpn_iid[j].wwpn == 0 && 3013 port->wwpn_iid[j].name == NULL) 3014 continue; 3015 3016 printf(" iid %u use %d WWPN %#jx '%s'\n", 3017 j, port->wwpn_iid[j].in_use, 3018 (uintmax_t)port->wwpn_iid[j].wwpn, 3019 port->wwpn_iid[j].name); 3020 } 3021 } 3022 printf("CTL Port information end\n"); 3023 mtx_unlock(&softc->ctl_lock); 3024 /* 3025 * XXX KDM calling this without a lock. We'd likely want 3026 * to drop the lock before calling the frontend's dump 3027 * routine anyway. 3028 */ 3029 printf("CTL Frontends:\n"); 3030 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3031 printf(" Frontend '%s'\n", fe->name); 3032 if (fe->fe_dump != NULL) 3033 fe->fe_dump(); 3034 } 3035 printf("CTL Frontend information end\n"); 3036 break; 3037 } 3038 case CTL_LUN_REQ: { 3039 struct ctl_lun_req *lun_req; 3040 struct ctl_backend_driver *backend; 3041 3042 lun_req = (struct ctl_lun_req *)addr; 3043 3044 backend = ctl_backend_find(lun_req->backend); 3045 if (backend == NULL) { 3046 lun_req->status = CTL_LUN_ERROR; 3047 snprintf(lun_req->error_str, 3048 sizeof(lun_req->error_str), 3049 "Backend \"%s\" not found.", 3050 lun_req->backend); 3051 break; 3052 } 3053 if (lun_req->num_be_args > 0) { 3054 lun_req->kern_be_args = ctl_copyin_args( 3055 lun_req->num_be_args, 3056 lun_req->be_args, 3057 lun_req->error_str, 3058 sizeof(lun_req->error_str)); 3059 if (lun_req->kern_be_args == NULL) { 3060 lun_req->status = CTL_LUN_ERROR; 3061 break; 3062 } 3063 } 3064 3065 retval = backend->ioctl(dev, cmd, addr, flag, td); 3066 3067 if (lun_req->num_be_args > 0) { 3068 ctl_copyout_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 ctl_free_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 } 3073 break; 3074 } 3075 case CTL_LUN_LIST: { 3076 struct sbuf *sb; 3077 struct ctl_lun *lun; 3078 struct ctl_lun_list *list; 3079 struct ctl_option *opt; 3080 3081 list = (struct ctl_lun_list *)addr; 3082 3083 /* 3084 * Allocate a fixed length sbuf here, based on the length 3085 * of the user's buffer. We could allocate an auto-extending 3086 * buffer, and then tell the user how much larger our 3087 * amount of data is than his buffer, but that presents 3088 * some problems: 3089 * 3090 * 1. The sbuf(9) routines use a blocking malloc, and so 3091 * we can't hold a lock while calling them with an 3092 * auto-extending buffer. 3093 * 3094 * 2. There is not currently a LUN reference counting 3095 * mechanism, outside of outstanding transactions on 3096 * the LUN's OOA queue. So a LUN could go away on us 3097 * while we're getting the LUN number, backend-specific 3098 * information, etc. Thus, given the way things 3099 * currently work, we need to hold the CTL lock while 3100 * grabbing LUN information. 3101 * 3102 * So, from the user's standpoint, the best thing to do is 3103 * allocate what he thinks is a reasonable buffer length, 3104 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3105 * double the buffer length and try again. (And repeat 3106 * that until he succeeds.) 3107 */ 3108 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3109 if (sb == NULL) { 3110 list->status = CTL_LUN_LIST_ERROR; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Unable to allocate %d bytes for LUN list", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_printf(sb, "<ctllunlist>\n"); 3118 3119 mtx_lock(&softc->ctl_lock); 3120 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3121 mtx_lock(&lun->lun_lock); 3122 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3123 (uintmax_t)lun->lun); 3124 3125 /* 3126 * Bail out as soon as we see that we've overfilled 3127 * the buffer. 3128 */ 3129 if (retval != 0) 3130 break; 3131 3132 retval = sbuf_printf(sb, "\t<backend_type>%s" 3133 "</backend_type>\n", 3134 (lun->backend == NULL) ? "none" : 3135 lun->backend->name); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3141 lun->be_lun->lun_type); 3142 3143 if (retval != 0) 3144 break; 3145 3146 if (lun->backend == NULL) { 3147 retval = sbuf_printf(sb, "</lun>\n"); 3148 if (retval != 0) 3149 break; 3150 continue; 3151 } 3152 3153 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3154 (lun->be_lun->maxlba > 0) ? 3155 lun->be_lun->maxlba + 1 : 0); 3156 3157 if (retval != 0) 3158 break; 3159 3160 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3161 lun->be_lun->blocksize); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = sbuf_printf(sb, "\t<serial_number>"); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = ctl_sbuf_printf_esc(sb, 3172 lun->be_lun->serial_num); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "</serial_number>\n"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "\t<device_id>"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3188 3189 if (retval != 0) 3190 break; 3191 3192 retval = sbuf_printf(sb, "</device_id>\n"); 3193 3194 if (retval != 0) 3195 break; 3196 3197 if (lun->backend->lun_info != NULL) { 3198 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3199 if (retval != 0) 3200 break; 3201 } 3202 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3203 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3204 opt->name, opt->value, opt->name); 3205 if (retval != 0) 3206 break; 3207 } 3208 3209 retval = sbuf_printf(sb, "</lun>\n"); 3210 3211 if (retval != 0) 3212 break; 3213 mtx_unlock(&lun->lun_lock); 3214 } 3215 if (lun != NULL) 3216 mtx_unlock(&lun->lun_lock); 3217 mtx_unlock(&softc->ctl_lock); 3218 3219 if ((retval != 0) 3220 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3221 retval = 0; 3222 sbuf_delete(sb); 3223 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3224 snprintf(list->error_str, sizeof(list->error_str), 3225 "Out of space, %d bytes is too small", 3226 list->alloc_len); 3227 break; 3228 } 3229 3230 sbuf_finish(sb); 3231 3232 retval = copyout(sbuf_data(sb), list->lun_xml, 3233 sbuf_len(sb) + 1); 3234 3235 list->fill_len = sbuf_len(sb) + 1; 3236 list->status = CTL_LUN_LIST_OK; 3237 sbuf_delete(sb); 3238 break; 3239 } 3240 case CTL_ISCSI: { 3241 struct ctl_iscsi *ci; 3242 struct ctl_frontend *fe; 3243 3244 ci = (struct ctl_iscsi *)addr; 3245 3246 fe = ctl_frontend_find("iscsi"); 3247 if (fe == NULL) { 3248 ci->status = CTL_ISCSI_ERROR; 3249 snprintf(ci->error_str, sizeof(ci->error_str), 3250 "Frontend \"iscsi\" not found."); 3251 break; 3252 } 3253 3254 retval = fe->ioctl(dev, cmd, addr, flag, td); 3255 break; 3256 } 3257 case CTL_PORT_REQ: { 3258 struct ctl_req *req; 3259 struct ctl_frontend *fe; 3260 3261 req = (struct ctl_req *)addr; 3262 3263 fe = ctl_frontend_find(req->driver); 3264 if (fe == NULL) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Frontend \"%s\" not found.", req->driver); 3268 break; 3269 } 3270 if (req->num_args > 0) { 3271 req->kern_args = ctl_copyin_args(req->num_args, 3272 req->args, req->error_str, sizeof(req->error_str)); 3273 if (req->kern_args == NULL) { 3274 req->status = CTL_LUN_ERROR; 3275 break; 3276 } 3277 } 3278 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 3281 if (req->num_args > 0) { 3282 ctl_copyout_args(req->num_args, req->kern_args); 3283 ctl_free_args(req->num_args, req->kern_args); 3284 } 3285 break; 3286 } 3287 case CTL_PORT_LIST: { 3288 struct sbuf *sb; 3289 struct ctl_port *port; 3290 struct ctl_lun_list *list; 3291 struct ctl_option *opt; 3292 3293 list = (struct ctl_lun_list *)addr; 3294 3295 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3296 if (sb == NULL) { 3297 list->status = CTL_LUN_LIST_ERROR; 3298 snprintf(list->error_str, sizeof(list->error_str), 3299 "Unable to allocate %d bytes for LUN list", 3300 list->alloc_len); 3301 break; 3302 } 3303 3304 sbuf_printf(sb, "<ctlportlist>\n"); 3305 3306 mtx_lock(&softc->ctl_lock); 3307 STAILQ_FOREACH(port, &softc->port_list, links) { 3308 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3309 (uintmax_t)port->targ_port); 3310 3311 /* 3312 * Bail out as soon as we see that we've overfilled 3313 * the buffer. 3314 */ 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3319 "</frontend_type>\n", port->frontend->name); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3324 port->port_type); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3329 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3334 port->port_name); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3339 port->physical_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3344 port->virtual_port); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3349 (uintmax_t)port->wwnn); 3350 if (retval != 0) 3351 break; 3352 3353 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3354 (uintmax_t)port->wwpn); 3355 if (retval != 0) 3356 break; 3357 3358 if (port->port_info != NULL) { 3359 retval = port->port_info(port->onoff_arg, sb); 3360 if (retval != 0) 3361 break; 3362 } 3363 STAILQ_FOREACH(opt, &port->options, links) { 3364 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3365 opt->name, opt->value, opt->name); 3366 if (retval != 0) 3367 break; 3368 } 3369 3370 retval = sbuf_printf(sb, "</targ_port>\n"); 3371 if (retval != 0) 3372 break; 3373 } 3374 mtx_unlock(&softc->ctl_lock); 3375 3376 if ((retval != 0) 3377 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3378 retval = 0; 3379 sbuf_delete(sb); 3380 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3381 snprintf(list->error_str, sizeof(list->error_str), 3382 "Out of space, %d bytes is too small", 3383 list->alloc_len); 3384 break; 3385 } 3386 3387 sbuf_finish(sb); 3388 3389 retval = copyout(sbuf_data(sb), list->lun_xml, 3390 sbuf_len(sb) + 1); 3391 3392 list->fill_len = sbuf_len(sb) + 1; 3393 list->status = CTL_LUN_LIST_OK; 3394 sbuf_delete(sb); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 if (nexus->targ_port < CTL_MAX_PORTS) 3438 return (nexus->initid.id + 3439 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3440 else 3441 return (nexus->initid.id + 3442 ((nexus->targ_port - CTL_MAX_PORTS) * 3443 CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446uint32_t 3447ctl_get_resindex(struct ctl_nexus *nexus) 3448{ 3449 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3450} 3451 3452uint32_t 3453ctl_port_idx(int port_num) 3454{ 3455 if (port_num < CTL_MAX_PORTS) 3456 return(port_num); 3457 else 3458 return(port_num - CTL_MAX_PORTS); 3459} 3460 3461static uint32_t 3462ctl_map_lun(int port_num, uint32_t lun_id) 3463{ 3464 struct ctl_port *port; 3465 3466 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3467 if (port == NULL) 3468 return (UINT32_MAX); 3469 if (port->lun_map == NULL) 3470 return (lun_id); 3471 return (port->lun_map(port->targ_lun_arg, lun_id)); 3472} 3473 3474static uint32_t 3475ctl_map_lun_back(int port_num, uint32_t lun_id) 3476{ 3477 struct ctl_port *port; 3478 uint32_t i; 3479 3480 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3481 if (port->lun_map == NULL) 3482 return (lun_id); 3483 for (i = 0; i < CTL_MAX_LUNS; i++) { 3484 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3485 return (i); 3486 } 3487 return (UINT32_MAX); 3488} 3489 3490/* 3491 * Note: This only works for bitmask sizes that are at least 32 bits, and 3492 * that are a power of 2. 3493 */ 3494int 3495ctl_ffz(uint32_t *mask, uint32_t size) 3496{ 3497 uint32_t num_chunks, num_pieces; 3498 int i, j; 3499 3500 num_chunks = (size >> 5); 3501 if (num_chunks == 0) 3502 num_chunks++; 3503 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3504 3505 for (i = 0; i < num_chunks; i++) { 3506 for (j = 0; j < num_pieces; j++) { 3507 if ((mask[i] & (1 << j)) == 0) 3508 return ((i << 5) + j); 3509 } 3510 } 3511 3512 return (-1); 3513} 3514 3515int 3516ctl_set_mask(uint32_t *mask, uint32_t bit) 3517{ 3518 uint32_t chunk, piece; 3519 3520 chunk = bit >> 5; 3521 piece = bit % (sizeof(uint32_t) * 8); 3522 3523 if ((mask[chunk] & (1 << piece)) != 0) 3524 return (-1); 3525 else 3526 mask[chunk] |= (1 << piece); 3527 3528 return (0); 3529} 3530 3531int 3532ctl_clear_mask(uint32_t *mask, uint32_t bit) 3533{ 3534 uint32_t chunk, piece; 3535 3536 chunk = bit >> 5; 3537 piece = bit % (sizeof(uint32_t) * 8); 3538 3539 if ((mask[chunk] & (1 << piece)) == 0) 3540 return (-1); 3541 else 3542 mask[chunk] &= ~(1 << piece); 3543 3544 return (0); 3545} 3546 3547int 3548ctl_is_set(uint32_t *mask, uint32_t bit) 3549{ 3550 uint32_t chunk, piece; 3551 3552 chunk = bit >> 5; 3553 piece = bit % (sizeof(uint32_t) * 8); 3554 3555 if ((mask[chunk] & (1 << piece)) == 0) 3556 return (0); 3557 else 3558 return (1); 3559} 3560 3561#ifdef unused 3562/* 3563 * The bus, target and lun are optional, they can be filled in later. 3564 * can_wait is used to determine whether we can wait on the malloc or not. 3565 */ 3566union ctl_io* 3567ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3568 uint32_t targ_lun, int can_wait) 3569{ 3570 union ctl_io *io; 3571 3572 if (can_wait) 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3574 else 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 3577 if (io != NULL) { 3578 io->io_hdr.io_type = io_type; 3579 io->io_hdr.targ_port = targ_port; 3580 /* 3581 * XXX KDM this needs to change/go away. We need to move 3582 * to a preallocated pool of ctl_scsiio structures. 3583 */ 3584 io->io_hdr.nexus.targ_target.id = targ_target; 3585 io->io_hdr.nexus.targ_lun = targ_lun; 3586 } 3587 3588 return (io); 3589} 3590 3591void 3592ctl_kfree_io(union ctl_io *io) 3593{ 3594 free(io, M_CTL); 3595} 3596#endif /* unused */ 3597 3598/* 3599 * ctl_softc, pool_type, total_ctl_io are passed in. 3600 * npool is passed out. 3601 */ 3602int 3603ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3604 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3605{ 3606 uint32_t i; 3607 union ctl_io *cur_io, *next_io; 3608 struct ctl_io_pool *pool; 3609 int retval; 3610 3611 retval = 0; 3612 3613 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3614 M_NOWAIT | M_ZERO); 3615 if (pool == NULL) { 3616 retval = ENOMEM; 3617 goto bailout; 3618 } 3619 3620 pool->type = pool_type; 3621 pool->ctl_softc = ctl_softc; 3622 3623 mtx_lock(&ctl_softc->pool_lock); 3624 pool->id = ctl_softc->cur_pool_id++; 3625 mtx_unlock(&ctl_softc->pool_lock); 3626 3627 pool->flags = CTL_POOL_FLAG_NONE; 3628 pool->refcount = 1; /* Reference for validity. */ 3629 STAILQ_INIT(&pool->free_queue); 3630 3631 /* 3632 * XXX KDM other options here: 3633 * - allocate a page at a time 3634 * - allocate one big chunk of memory. 3635 * Page allocation might work well, but would take a little more 3636 * tracking. 3637 */ 3638 for (i = 0; i < total_ctl_io; i++) { 3639 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3640 M_NOWAIT); 3641 if (cur_io == NULL) { 3642 retval = ENOMEM; 3643 break; 3644 } 3645 cur_io->io_hdr.pool = pool; 3646 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3647 pool->total_ctl_io++; 3648 pool->free_ctl_io++; 3649 } 3650 3651 if (retval != 0) { 3652 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3653 cur_io != NULL; cur_io = next_io) { 3654 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3655 links); 3656 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3657 ctl_io_hdr, links); 3658 free(cur_io, M_CTLIO); 3659 } 3660 3661 free(pool, M_CTL); 3662 goto bailout; 3663 } 3664 mtx_lock(&ctl_softc->pool_lock); 3665 ctl_softc->num_pools++; 3666 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3667 /* 3668 * Increment our usage count if this is an external consumer, so we 3669 * can't get unloaded until the external consumer (most likely a 3670 * FETD) unloads and frees his pool. 3671 * 3672 * XXX KDM will this increment the caller's module use count, or 3673 * mine? 3674 */ 3675#if 0 3676 if ((pool_type != CTL_POOL_EMERGENCY) 3677 && (pool_type != CTL_POOL_INTERNAL) 3678 && (pool_type != CTL_POOL_4OTHERSC)) 3679 MOD_INC_USE_COUNT; 3680#endif 3681 3682 mtx_unlock(&ctl_softc->pool_lock); 3683 3684 *npool = pool; 3685 3686bailout: 3687 3688 return (retval); 3689} 3690 3691static int 3692ctl_pool_acquire(struct ctl_io_pool *pool) 3693{ 3694 3695 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3696 3697 if (pool->flags & CTL_POOL_FLAG_INVALID) 3698 return (EINVAL); 3699 3700 pool->refcount++; 3701 3702 return (0); 3703} 3704 3705static void 3706ctl_pool_release(struct ctl_io_pool *pool) 3707{ 3708 struct ctl_softc *ctl_softc = pool->ctl_softc; 3709 union ctl_io *io; 3710 3711 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3712 3713 if (--pool->refcount != 0) 3714 return; 3715 3716 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3717 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3718 links); 3719 free(io, M_CTLIO); 3720 } 3721 3722 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3723 ctl_softc->num_pools--; 3724 3725 /* 3726 * XXX KDM will this decrement the caller's usage count or mine? 3727 */ 3728#if 0 3729 if ((pool->type != CTL_POOL_EMERGENCY) 3730 && (pool->type != CTL_POOL_INTERNAL) 3731 && (pool->type != CTL_POOL_4OTHERSC)) 3732 MOD_DEC_USE_COUNT; 3733#endif 3734 3735 free(pool, M_CTL); 3736} 3737 3738void 3739ctl_pool_free(struct ctl_io_pool *pool) 3740{ 3741 struct ctl_softc *ctl_softc; 3742 3743 if (pool == NULL) 3744 return; 3745 3746 ctl_softc = pool->ctl_softc; 3747 mtx_lock(&ctl_softc->pool_lock); 3748 pool->flags |= CTL_POOL_FLAG_INVALID; 3749 ctl_pool_release(pool); 3750 mtx_unlock(&ctl_softc->pool_lock); 3751} 3752 3753/* 3754 * This routine does not block (except for spinlocks of course). 3755 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3756 * possible. 3757 */ 3758union ctl_io * 3759ctl_alloc_io(void *pool_ref) 3760{ 3761 union ctl_io *io; 3762 struct ctl_softc *ctl_softc; 3763 struct ctl_io_pool *pool, *npool; 3764 struct ctl_io_pool *emergency_pool; 3765 3766 pool = (struct ctl_io_pool *)pool_ref; 3767 3768 if (pool == NULL) { 3769 printf("%s: pool is NULL\n", __func__); 3770 return (NULL); 3771 } 3772 3773 emergency_pool = NULL; 3774 3775 ctl_softc = pool->ctl_softc; 3776 3777 mtx_lock(&ctl_softc->pool_lock); 3778 /* 3779 * First, try to get the io structure from the user's pool. 3780 */ 3781 if (ctl_pool_acquire(pool) == 0) { 3782 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3783 if (io != NULL) { 3784 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3785 pool->total_allocated++; 3786 pool->free_ctl_io--; 3787 mtx_unlock(&ctl_softc->pool_lock); 3788 return (io); 3789 } else 3790 ctl_pool_release(pool); 3791 } 3792 /* 3793 * If he doesn't have any io structures left, search for an 3794 * emergency pool and grab one from there. 3795 */ 3796 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3797 if (npool->type != CTL_POOL_EMERGENCY) 3798 continue; 3799 3800 if (ctl_pool_acquire(npool) != 0) 3801 continue; 3802 3803 emergency_pool = npool; 3804 3805 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3806 if (io != NULL) { 3807 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3808 npool->total_allocated++; 3809 npool->free_ctl_io--; 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 return (io); 3812 } else 3813 ctl_pool_release(npool); 3814 } 3815 3816 /* Drop the spinlock before we malloc */ 3817 mtx_unlock(&ctl_softc->pool_lock); 3818 3819 /* 3820 * The emergency pool (if it exists) didn't have one, so try an 3821 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3822 */ 3823 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3824 if (io != NULL) { 3825 /* 3826 * If the emergency pool exists but is empty, add this 3827 * ctl_io to its list when it gets freed. 3828 */ 3829 if (emergency_pool != NULL) { 3830 mtx_lock(&ctl_softc->pool_lock); 3831 if (ctl_pool_acquire(emergency_pool) == 0) { 3832 io->io_hdr.pool = emergency_pool; 3833 emergency_pool->total_ctl_io++; 3834 /* 3835 * Need to bump this, otherwise 3836 * total_allocated and total_freed won't 3837 * match when we no longer have anything 3838 * outstanding. 3839 */ 3840 emergency_pool->total_allocated++; 3841 } 3842 mtx_unlock(&ctl_softc->pool_lock); 3843 } else 3844 io->io_hdr.pool = NULL; 3845 } 3846 3847 return (io); 3848} 3849 3850void 3851ctl_free_io(union ctl_io *io) 3852{ 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * If this ctl_io has a pool, return it to that pool. 3858 */ 3859 if (io->io_hdr.pool != NULL) { 3860 struct ctl_io_pool *pool; 3861 3862 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3863 mtx_lock(&pool->ctl_softc->pool_lock); 3864 io->io_hdr.io_type = 0xff; 3865 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3866 pool->total_freed++; 3867 pool->free_ctl_io++; 3868 ctl_pool_release(pool); 3869 mtx_unlock(&pool->ctl_softc->pool_lock); 3870 } else { 3871 /* 3872 * Otherwise, just free it. We probably malloced it and 3873 * the emergency pool wasn't available. 3874 */ 3875 free(io, M_CTLIO); 3876 } 3877 3878} 3879 3880void 3881ctl_zero_io(union ctl_io *io) 3882{ 3883 void *pool_ref; 3884 3885 if (io == NULL) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = io->io_hdr.pool; 3892 3893 memset(io, 0, sizeof(*io)); 3894 3895 io->io_hdr.pool = pool_ref; 3896} 3897 3898/* 3899 * This routine is currently used for internal copies of ctl_ios that need 3900 * to persist for some reason after we've already returned status to the 3901 * FETD. (Thus the flag set.) 3902 * 3903 * XXX XXX 3904 * Note that this makes a blind copy of all fields in the ctl_io, except 3905 * for the pool reference. This includes any memory that has been 3906 * allocated! That memory will no longer be valid after done has been 3907 * called, so this would be VERY DANGEROUS for command that actually does 3908 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3909 * start and stop commands, which don't transfer any data, so this is not a 3910 * problem. If it is used for anything else, the caller would also need to 3911 * allocate data buffer space and this routine would need to be modified to 3912 * copy the data buffer(s) as well. 3913 */ 3914void 3915ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3916{ 3917 void *pool_ref; 3918 3919 if ((src == NULL) 3920 || (dest == NULL)) 3921 return; 3922 3923 /* 3924 * May need to preserve linked list pointers at some point too. 3925 */ 3926 pool_ref = dest->io_hdr.pool; 3927 3928 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3929 3930 dest->io_hdr.pool = pool_ref; 3931 /* 3932 * We need to know that this is an internal copy, and doesn't need 3933 * to get passed back to the FETD that allocated it. 3934 */ 3935 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3936} 3937 3938#ifdef NEEDTOPORT 3939static void 3940ctl_update_power_subpage(struct copan_power_subpage *page) 3941{ 3942 int num_luns, num_partitions, config_type; 3943 struct ctl_softc *softc; 3944 cs_BOOL_t aor_present, shelf_50pct_power; 3945 cs_raidset_personality_t rs_type; 3946 int max_active_luns; 3947 3948 softc = control_softc; 3949 3950 /* subtract out the processor LUN */ 3951 num_luns = softc->num_luns - 1; 3952 /* 3953 * Default to 7 LUNs active, which was the only number we allowed 3954 * in the past. 3955 */ 3956 max_active_luns = 7; 3957 3958 num_partitions = config_GetRsPartitionInfo(); 3959 config_type = config_GetConfigType(); 3960 shelf_50pct_power = config_GetShelfPowerMode(); 3961 aor_present = config_IsAorRsPresent(); 3962 3963 rs_type = ddb_GetRsRaidType(1); 3964 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3965 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3966 EPRINT(0, "Unsupported RS type %d!", rs_type); 3967 } 3968 3969 3970 page->total_luns = num_luns; 3971 3972 switch (config_type) { 3973 case 40: 3974 /* 3975 * In a 40 drive configuration, it doesn't matter what DC 3976 * cards we have, whether we have AOR enabled or not, 3977 * partitioning or not, or what type of RAIDset we have. 3978 * In that scenario, we can power up every LUN we present 3979 * to the user. 3980 */ 3981 max_active_luns = num_luns; 3982 3983 break; 3984 case 64: 3985 if (shelf_50pct_power == CS_FALSE) { 3986 /* 25% power */ 3987 if (aor_present == CS_TRUE) { 3988 if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID5) { 3990 max_active_luns = 7; 3991 } else if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID1){ 3993 max_active_luns = 14; 3994 } else { 3995 /* XXX KDM now what?? */ 3996 } 3997 } else { 3998 if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID5) { 4000 max_active_luns = 8; 4001 } else if (rs_type == 4002 CS_RAIDSET_PERSONALITY_RAID1){ 4003 max_active_luns = 16; 4004 } else { 4005 /* XXX KDM now what?? */ 4006 } 4007 } 4008 } else { 4009 /* 50% power */ 4010 /* 4011 * With 50% power in a 64 drive configuration, we 4012 * can power all LUNs we present. 4013 */ 4014 max_active_luns = num_luns; 4015 } 4016 break; 4017 case 112: 4018 if (shelf_50pct_power == CS_FALSE) { 4019 /* 25% power */ 4020 if (aor_present == CS_TRUE) { 4021 if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID5) { 4023 max_active_luns = 7; 4024 } else if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID1){ 4026 max_active_luns = 14; 4027 } else { 4028 /* XXX KDM now what?? */ 4029 } 4030 } else { 4031 if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID5) { 4033 max_active_luns = 8; 4034 } else if (rs_type == 4035 CS_RAIDSET_PERSONALITY_RAID1){ 4036 max_active_luns = 16; 4037 } else { 4038 /* XXX KDM now what?? */ 4039 } 4040 } 4041 } else { 4042 /* 50% power */ 4043 if (aor_present == CS_TRUE) { 4044 if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID5) { 4046 max_active_luns = 14; 4047 } else if (rs_type == 4048 CS_RAIDSET_PERSONALITY_RAID1){ 4049 /* 4050 * We're assuming here that disk 4051 * caching is enabled, and so we're 4052 * able to power up half of each 4053 * LUN, and cache all writes. 4054 */ 4055 max_active_luns = num_luns; 4056 } else { 4057 /* XXX KDM now what?? */ 4058 } 4059 } else { 4060 if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID5) { 4062 max_active_luns = 15; 4063 } else if (rs_type == 4064 CS_RAIDSET_PERSONALITY_RAID1){ 4065 max_active_luns = 30; 4066 } else { 4067 /* XXX KDM now what?? */ 4068 } 4069 } 4070 } 4071 break; 4072 default: 4073 /* 4074 * In this case, we have an unknown configuration, so we 4075 * just use the default from above. 4076 */ 4077 break; 4078 } 4079 4080 page->max_active_luns = max_active_luns; 4081#if 0 4082 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4083 page->total_luns, page->max_active_luns); 4084#endif 4085} 4086#endif /* NEEDTOPORT */ 4087 4088/* 4089 * This routine could be used in the future to load default and/or saved 4090 * mode page parameters for a particuar lun. 4091 */ 4092static int 4093ctl_init_page_index(struct ctl_lun *lun) 4094{ 4095 int i; 4096 struct ctl_page_index *page_index; 4097 struct ctl_softc *softc; 4098 const char *value; 4099 4100 memcpy(&lun->mode_pages.index, page_index_template, 4101 sizeof(page_index_template)); 4102 4103 softc = lun->ctl_softc; 4104 4105 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4106 4107 page_index = &lun->mode_pages.index[i]; 4108 /* 4109 * If this is a disk-only mode page, there's no point in 4110 * setting it up. For some pages, we have to have some 4111 * basic information about the disk in order to calculate the 4112 * mode page data. 4113 */ 4114 if ((lun->be_lun->lun_type != T_DIRECT) 4115 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4116 continue; 4117 4118 switch (page_index->page_code & SMPH_PC_MASK) { 4119 case SMS_FORMAT_DEVICE_PAGE: { 4120 struct scsi_format_page *format_page; 4121 4122 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4123 panic("subpage is incorrect!"); 4124 4125 /* 4126 * Sectors per track are set above. Bytes per 4127 * sector need to be set here on a per-LUN basis. 4128 */ 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[ 4133 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4134 sizeof(format_page_changeable)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4139 &format_page_default, 4140 sizeof(format_page_default)); 4141 4142 format_page = &lun->mode_pages.format_page[ 4143 CTL_PAGE_CURRENT]; 4144 scsi_ulto2b(lun->be_lun->blocksize, 4145 format_page->bytes_per_sector); 4146 4147 format_page = &lun->mode_pages.format_page[ 4148 CTL_PAGE_DEFAULT]; 4149 scsi_ulto2b(lun->be_lun->blocksize, 4150 format_page->bytes_per_sector); 4151 4152 format_page = &lun->mode_pages.format_page[ 4153 CTL_PAGE_SAVED]; 4154 scsi_ulto2b(lun->be_lun->blocksize, 4155 format_page->bytes_per_sector); 4156 4157 page_index->page_data = 4158 (uint8_t *)lun->mode_pages.format_page; 4159 break; 4160 } 4161 case SMS_RIGID_DISK_PAGE: { 4162 struct scsi_rigid_disk_page *rigid_disk_page; 4163 uint32_t sectors_per_cylinder; 4164 uint64_t cylinders; 4165#ifndef __XSCALE__ 4166 int shift; 4167#endif /* !__XSCALE__ */ 4168 4169 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4170 panic("invalid subpage value %d", 4171 page_index->subpage); 4172 4173 /* 4174 * Rotation rate and sectors per track are set 4175 * above. We calculate the cylinders here based on 4176 * capacity. Due to the number of heads and 4177 * sectors per track we're using, smaller arrays 4178 * may turn out to have 0 cylinders. Linux and 4179 * FreeBSD don't pay attention to these mode pages 4180 * to figure out capacity, but Solaris does. It 4181 * seems to deal with 0 cylinders just fine, and 4182 * works out a fake geometry based on the capacity. 4183 */ 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4189 sizeof(rigid_disk_page_changeable)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 memcpy(&lun->mode_pages.rigid_disk_page[ 4194 CTL_PAGE_SAVED], &rigid_disk_page_default, 4195 sizeof(rigid_disk_page_default)); 4196 4197 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4198 CTL_DEFAULT_HEADS; 4199 4200 /* 4201 * The divide method here will be more accurate, 4202 * probably, but results in floating point being 4203 * used in the kernel on i386 (__udivdi3()). On the 4204 * XScale, though, __udivdi3() is implemented in 4205 * software. 4206 * 4207 * The shift method for cylinder calculation is 4208 * accurate if sectors_per_cylinder is a power of 4209 * 2. Otherwise it might be slightly off -- you 4210 * might have a bit of a truncation problem. 4211 */ 4212#ifdef __XSCALE__ 4213 cylinders = (lun->be_lun->maxlba + 1) / 4214 sectors_per_cylinder; 4215#else 4216 for (shift = 31; shift > 0; shift--) { 4217 if (sectors_per_cylinder & (1 << shift)) 4218 break; 4219 } 4220 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4221#endif 4222 4223 /* 4224 * We've basically got 3 bytes, or 24 bits for the 4225 * cylinder size in the mode page. If we're over, 4226 * just round down to 2^24. 4227 */ 4228 if (cylinders > 0xffffff) 4229 cylinders = 0xffffff; 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_CURRENT]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4236 CTL_PAGE_DEFAULT]; 4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4238 4239 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4240 CTL_PAGE_SAVED]; 4241 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4242 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.rigid_disk_page; 4245 break; 4246 } 4247 case SMS_CACHING_PAGE: { 4248 struct scsi_caching_page *caching_page; 4249 4250 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4251 panic("invalid subpage value %d", 4252 page_index->subpage); 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 caching_page = &lun->mode_pages.caching_page[ 4263 CTL_PAGE_SAVED]; 4264 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4265 if (value != NULL && strcmp(value, "off") == 0) 4266 caching_page->flags1 &= ~SCP_WCE; 4267 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4268 if (value != NULL && strcmp(value, "off") == 0) 4269 caching_page->flags1 |= SCP_RCD; 4270 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4272 sizeof(caching_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.caching_page; 4275 break; 4276 } 4277 case SMS_CONTROL_MODE_PAGE: { 4278 struct scsi_control_page *control_page; 4279 4280 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4281 panic("invalid subpage value %d", 4282 page_index->subpage); 4283 4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4285 &control_page_default, 4286 sizeof(control_page_default)); 4287 memcpy(&lun->mode_pages.control_page[ 4288 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4289 sizeof(control_page_changeable)); 4290 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4291 &control_page_default, 4292 sizeof(control_page_default)); 4293 control_page = &lun->mode_pages.control_page[ 4294 CTL_PAGE_SAVED]; 4295 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4296 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4297 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4298 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4299 } 4300 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4301 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4302 sizeof(control_page_default)); 4303 page_index->page_data = 4304 (uint8_t *)lun->mode_pages.control_page; 4305 break; 4306 4307 } 4308 case SMS_VENDOR_SPECIFIC_PAGE:{ 4309 switch (page_index->subpage) { 4310 case PWR_SUBPAGE_CODE: { 4311 struct copan_power_subpage *current_page, 4312 *saved_page; 4313 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_CURRENT], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 memcpy(&lun->mode_pages.power_subpage[ 4319 CTL_PAGE_CHANGEABLE], 4320 &power_page_changeable, 4321 sizeof(power_page_changeable)); 4322 memcpy(&lun->mode_pages.power_subpage[ 4323 CTL_PAGE_DEFAULT], 4324 &power_page_default, 4325 sizeof(power_page_default)); 4326 memcpy(&lun->mode_pages.power_subpage[ 4327 CTL_PAGE_SAVED], 4328 &power_page_default, 4329 sizeof(power_page_default)); 4330 page_index->page_data = 4331 (uint8_t *)lun->mode_pages.power_subpage; 4332 4333 current_page = (struct copan_power_subpage *) 4334 (page_index->page_data + 4335 (page_index->page_len * 4336 CTL_PAGE_CURRENT)); 4337 saved_page = (struct copan_power_subpage *) 4338 (page_index->page_data + 4339 (page_index->page_len * 4340 CTL_PAGE_SAVED)); 4341 break; 4342 } 4343 case APS_SUBPAGE_CODE: { 4344 struct copan_aps_subpage *current_page, 4345 *saved_page; 4346 4347 // This gets set multiple times but 4348 // it should always be the same. It's 4349 // only done during init so who cares. 4350 index_to_aps_page = i; 4351 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_CURRENT], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 memcpy(&lun->mode_pages.aps_subpage[ 4357 CTL_PAGE_CHANGEABLE], 4358 &aps_page_changeable, 4359 sizeof(aps_page_changeable)); 4360 memcpy(&lun->mode_pages.aps_subpage[ 4361 CTL_PAGE_DEFAULT], 4362 &aps_page_default, 4363 sizeof(aps_page_default)); 4364 memcpy(&lun->mode_pages.aps_subpage[ 4365 CTL_PAGE_SAVED], 4366 &aps_page_default, 4367 sizeof(aps_page_default)); 4368 page_index->page_data = 4369 (uint8_t *)lun->mode_pages.aps_subpage; 4370 4371 current_page = (struct copan_aps_subpage *) 4372 (page_index->page_data + 4373 (page_index->page_len * 4374 CTL_PAGE_CURRENT)); 4375 saved_page = (struct copan_aps_subpage *) 4376 (page_index->page_data + 4377 (page_index->page_len * 4378 CTL_PAGE_SAVED)); 4379 break; 4380 } 4381 case DBGCNF_SUBPAGE_CODE: { 4382 struct copan_debugconf_subpage *current_page, 4383 *saved_page; 4384 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_CURRENT], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 memcpy(&lun->mode_pages.debugconf_subpage[ 4390 CTL_PAGE_CHANGEABLE], 4391 &debugconf_page_changeable, 4392 sizeof(debugconf_page_changeable)); 4393 memcpy(&lun->mode_pages.debugconf_subpage[ 4394 CTL_PAGE_DEFAULT], 4395 &debugconf_page_default, 4396 sizeof(debugconf_page_default)); 4397 memcpy(&lun->mode_pages.debugconf_subpage[ 4398 CTL_PAGE_SAVED], 4399 &debugconf_page_default, 4400 sizeof(debugconf_page_default)); 4401 page_index->page_data = 4402 (uint8_t *)lun->mode_pages.debugconf_subpage; 4403 4404 current_page = (struct copan_debugconf_subpage *) 4405 (page_index->page_data + 4406 (page_index->page_len * 4407 CTL_PAGE_CURRENT)); 4408 saved_page = (struct copan_debugconf_subpage *) 4409 (page_index->page_data + 4410 (page_index->page_len * 4411 CTL_PAGE_SAVED)); 4412 break; 4413 } 4414 default: 4415 panic("invalid subpage value %d", 4416 page_index->subpage); 4417 break; 4418 } 4419 break; 4420 } 4421 default: 4422 panic("invalid page value %d", 4423 page_index->page_code & SMPH_PC_MASK); 4424 break; 4425 } 4426 } 4427 4428 return (CTL_RETVAL_COMPLETE); 4429} 4430 4431/* 4432 * LUN allocation. 4433 * 4434 * Requirements: 4435 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4436 * wants us to allocate the LUN and he can block. 4437 * - ctl_softc is always set 4438 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4439 * 4440 * Returns 0 for success, non-zero (errno) for failure. 4441 */ 4442static int 4443ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4444 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4445{ 4446 struct ctl_lun *nlun, *lun; 4447 struct ctl_port *port; 4448 struct scsi_vpd_id_descriptor *desc; 4449 struct scsi_vpd_id_t10 *t10id; 4450 const char *eui, *naa, *scsiname, *vendor, *value; 4451 int lun_number, i, lun_malloced; 4452 int devidlen, idlen1, idlen2 = 0, len; 4453 4454 if (be_lun == NULL) 4455 return (EINVAL); 4456 4457 /* 4458 * We currently only support Direct Access or Processor LUN types. 4459 */ 4460 switch (be_lun->lun_type) { 4461 case T_DIRECT: 4462 break; 4463 case T_PROCESSOR: 4464 break; 4465 case T_SEQUENTIAL: 4466 case T_CHANGER: 4467 default: 4468 be_lun->lun_config_status(be_lun->be_lun, 4469 CTL_LUN_CONFIG_FAILURE); 4470 break; 4471 } 4472 if (ctl_lun == NULL) { 4473 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4474 lun_malloced = 1; 4475 } else { 4476 lun_malloced = 0; 4477 lun = ctl_lun; 4478 } 4479 4480 memset(lun, 0, sizeof(*lun)); 4481 if (lun_malloced) 4482 lun->flags = CTL_LUN_MALLOCED; 4483 4484 /* Generate LUN ID. */ 4485 devidlen = max(CTL_DEVID_MIN_LEN, 4486 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4487 idlen1 = sizeof(*t10id) + devidlen; 4488 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4489 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4490 if (scsiname != NULL) { 4491 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4492 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4493 } 4494 eui = ctl_get_opt(&be_lun->options, "eui"); 4495 if (eui != NULL) { 4496 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4497 } 4498 naa = ctl_get_opt(&be_lun->options, "naa"); 4499 if (naa != NULL) { 4500 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4501 } 4502 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4503 M_CTL, M_WAITOK | M_ZERO); 4504 lun->lun_devid->len = len; 4505 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4506 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4507 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4508 desc->length = idlen1; 4509 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4510 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4511 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4512 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4513 } else { 4514 strncpy(t10id->vendor, vendor, 4515 min(sizeof(t10id->vendor), strlen(vendor))); 4516 } 4517 strncpy((char *)t10id->vendor_spec_id, 4518 (char *)be_lun->device_id, devidlen); 4519 if (scsiname != NULL) { 4520 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4521 desc->length); 4522 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4523 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4524 SVPD_ID_TYPE_SCSI_NAME; 4525 desc->length = idlen2; 4526 strlcpy(desc->identifier, scsiname, idlen2); 4527 } 4528 if (eui != NULL) { 4529 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4530 desc->length); 4531 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4532 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4533 SVPD_ID_TYPE_EUI64; 4534 desc->length = 8; 4535 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4536 } 4537 if (naa != NULL) { 4538 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4539 desc->length); 4540 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4541 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4542 SVPD_ID_TYPE_NAA; 4543 desc->length = 8; 4544 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4545 } 4546 4547 mtx_lock(&ctl_softc->ctl_lock); 4548 /* 4549 * See if the caller requested a particular LUN number. If so, see 4550 * if it is available. Otherwise, allocate the first available LUN. 4551 */ 4552 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4553 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4554 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4555 mtx_unlock(&ctl_softc->ctl_lock); 4556 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4557 printf("ctl: requested LUN ID %d is higher " 4558 "than CTL_MAX_LUNS - 1 (%d)\n", 4559 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4560 } else { 4561 /* 4562 * XXX KDM return an error, or just assign 4563 * another LUN ID in this case?? 4564 */ 4565 printf("ctl: requested LUN ID %d is already " 4566 "in use\n", be_lun->req_lun_id); 4567 } 4568 if (lun->flags & CTL_LUN_MALLOCED) 4569 free(lun, M_CTL); 4570 be_lun->lun_config_status(be_lun->be_lun, 4571 CTL_LUN_CONFIG_FAILURE); 4572 return (ENOSPC); 4573 } 4574 lun_number = be_lun->req_lun_id; 4575 } else { 4576 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4577 if (lun_number == -1) { 4578 mtx_unlock(&ctl_softc->ctl_lock); 4579 printf("ctl: can't allocate LUN on target %ju, out of " 4580 "LUNs\n", (uintmax_t)target_id.id); 4581 if (lun->flags & CTL_LUN_MALLOCED) 4582 free(lun, M_CTL); 4583 be_lun->lun_config_status(be_lun->be_lun, 4584 CTL_LUN_CONFIG_FAILURE); 4585 return (ENOSPC); 4586 } 4587 } 4588 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4589 4590 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4591 lun->target = target_id; 4592 lun->lun = lun_number; 4593 lun->be_lun = be_lun; 4594 /* 4595 * The processor LUN is always enabled. Disk LUNs come on line 4596 * disabled, and must be enabled by the backend. 4597 */ 4598 lun->flags |= CTL_LUN_DISABLED; 4599 lun->backend = be_lun->be; 4600 be_lun->ctl_lun = lun; 4601 be_lun->lun_id = lun_number; 4602 atomic_add_int(&be_lun->be->num_luns, 1); 4603 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4604 lun->flags |= CTL_LUN_STOPPED; 4605 4606 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4607 lun->flags |= CTL_LUN_INOPERABLE; 4608 4609 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4610 lun->flags |= CTL_LUN_PRIMARY_SC; 4611 4612 value = ctl_get_opt(&be_lun->options, "readonly"); 4613 if (value != NULL && strcmp(value, "on") == 0) 4614 lun->flags |= CTL_LUN_READONLY; 4615 4616 lun->ctl_softc = ctl_softc; 4617 TAILQ_INIT(&lun->ooa_queue); 4618 TAILQ_INIT(&lun->blocked_queue); 4619 STAILQ_INIT(&lun->error_list); 4620 ctl_tpc_lun_init(lun); 4621 4622 /* 4623 * Initialize the mode page index. 4624 */ 4625 ctl_init_page_index(lun); 4626 4627 /* 4628 * Set the poweron UA for all initiators on this LUN only. 4629 */ 4630 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4631 lun->pending_ua[i] = CTL_UA_POWERON; 4632 4633 /* 4634 * Now, before we insert this lun on the lun list, set the lun 4635 * inventory changed UA for all other luns. 4636 */ 4637 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4638 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4639 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4640 } 4641 } 4642 4643 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4644 4645 ctl_softc->ctl_luns[lun_number] = lun; 4646 4647 ctl_softc->num_luns++; 4648 4649 /* Setup statistics gathering */ 4650 lun->stats.device_type = be_lun->lun_type; 4651 lun->stats.lun_number = lun_number; 4652 if (lun->stats.device_type == T_DIRECT) 4653 lun->stats.blocksize = be_lun->blocksize; 4654 else 4655 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4656 for (i = 0;i < CTL_MAX_PORTS;i++) 4657 lun->stats.ports[i].targ_port = i; 4658 4659 mtx_unlock(&ctl_softc->ctl_lock); 4660 4661 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4662 4663 /* 4664 * Run through each registered FETD and bring it online if it isn't 4665 * already. Enable the target ID if it hasn't been enabled, and 4666 * enable this particular LUN. 4667 */ 4668 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4669 int retval; 4670 4671 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4672 if (retval != 0) { 4673 printf("ctl_alloc_lun: FETD %s port %d returned error " 4674 "%d for lun_enable on target %ju lun %d\n", 4675 port->port_name, port->targ_port, retval, 4676 (uintmax_t)target_id.id, lun_number); 4677 } else 4678 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4679 } 4680 return (0); 4681} 4682 4683/* 4684 * Delete a LUN. 4685 * Assumptions: 4686 * - LUN has already been marked invalid and any pending I/O has been taken 4687 * care of. 4688 */ 4689static int 4690ctl_free_lun(struct ctl_lun *lun) 4691{ 4692 struct ctl_softc *softc; 4693#if 0 4694 struct ctl_port *port; 4695#endif 4696 struct ctl_lun *nlun; 4697 int i; 4698 4699 softc = lun->ctl_softc; 4700 4701 mtx_assert(&softc->ctl_lock, MA_OWNED); 4702 4703 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4704 4705 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4706 4707 softc->ctl_luns[lun->lun] = NULL; 4708 4709 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4710 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4711 4712 softc->num_luns--; 4713 4714 /* 4715 * XXX KDM this scheme only works for a single target/multiple LUN 4716 * setup. It needs to be revamped for a multiple target scheme. 4717 * 4718 * XXX KDM this results in port->lun_disable() getting called twice, 4719 * once when ctl_disable_lun() is called, and a second time here. 4720 * We really need to re-think the LUN disable semantics. There 4721 * should probably be several steps/levels to LUN removal: 4722 * - disable 4723 * - invalidate 4724 * - free 4725 * 4726 * Right now we only have a disable method when communicating to 4727 * the front end ports, at least for individual LUNs. 4728 */ 4729#if 0 4730 STAILQ_FOREACH(port, &softc->port_list, links) { 4731 int retval; 4732 4733 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4734 lun->lun); 4735 if (retval != 0) { 4736 printf("ctl_free_lun: FETD %s port %d returned error " 4737 "%d for lun_disable on target %ju lun %jd\n", 4738 port->port_name, port->targ_port, retval, 4739 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4740 } 4741 4742 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4743 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4744 4745 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4746 if (retval != 0) { 4747 printf("ctl_free_lun: FETD %s port %d " 4748 "returned error %d for targ_disable on " 4749 "target %ju\n", port->port_name, 4750 port->targ_port, retval, 4751 (uintmax_t)lun->target.id); 4752 } else 4753 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4754 4755 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4756 continue; 4757 4758#if 0 4759 port->port_offline(port->onoff_arg); 4760 port->status &= ~CTL_PORT_STATUS_ONLINE; 4761#endif 4762 } 4763 } 4764#endif 4765 4766 /* 4767 * Tell the backend to free resources, if this LUN has a backend. 4768 */ 4769 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4770 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4771 4772 ctl_tpc_lun_shutdown(lun); 4773 mtx_destroy(&lun->lun_lock); 4774 free(lun->lun_devid, M_CTL); 4775 if (lun->flags & CTL_LUN_MALLOCED) 4776 free(lun, M_CTL); 4777 4778 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4779 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4780 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4781 } 4782 } 4783 4784 return (0); 4785} 4786 4787static void 4788ctl_create_lun(struct ctl_be_lun *be_lun) 4789{ 4790 struct ctl_softc *ctl_softc; 4791 4792 ctl_softc = control_softc; 4793 4794 /* 4795 * ctl_alloc_lun() should handle all potential failure cases. 4796 */ 4797 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4798} 4799 4800int 4801ctl_add_lun(struct ctl_be_lun *be_lun) 4802{ 4803 struct ctl_softc *ctl_softc = control_softc; 4804 4805 mtx_lock(&ctl_softc->ctl_lock); 4806 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4807 mtx_unlock(&ctl_softc->ctl_lock); 4808 wakeup(&ctl_softc->pending_lun_queue); 4809 4810 return (0); 4811} 4812 4813int 4814ctl_enable_lun(struct ctl_be_lun *be_lun) 4815{ 4816 struct ctl_softc *ctl_softc; 4817 struct ctl_port *port, *nport; 4818 struct ctl_lun *lun; 4819 int retval; 4820 4821 ctl_softc = control_softc; 4822 4823 lun = (struct ctl_lun *)be_lun->ctl_lun; 4824 4825 mtx_lock(&ctl_softc->ctl_lock); 4826 mtx_lock(&lun->lun_lock); 4827 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4828 /* 4829 * eh? Why did we get called if the LUN is already 4830 * enabled? 4831 */ 4832 mtx_unlock(&lun->lun_lock); 4833 mtx_unlock(&ctl_softc->ctl_lock); 4834 return (0); 4835 } 4836 lun->flags &= ~CTL_LUN_DISABLED; 4837 mtx_unlock(&lun->lun_lock); 4838 4839 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4840 nport = STAILQ_NEXT(port, links); 4841 4842 /* 4843 * Drop the lock while we call the FETD's enable routine. 4844 * This can lead to a callback into CTL (at least in the 4845 * case of the internal initiator frontend. 4846 */ 4847 mtx_unlock(&ctl_softc->ctl_lock); 4848 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4849 mtx_lock(&ctl_softc->ctl_lock); 4850 if (retval != 0) { 4851 printf("%s: FETD %s port %d returned error " 4852 "%d for lun_enable on target %ju lun %jd\n", 4853 __func__, port->port_name, port->targ_port, retval, 4854 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4855 } 4856#if 0 4857 else { 4858 /* NOTE: TODO: why does lun enable affect port status? */ 4859 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4860 } 4861#endif 4862 } 4863 4864 mtx_unlock(&ctl_softc->ctl_lock); 4865 4866 return (0); 4867} 4868 4869int 4870ctl_disable_lun(struct ctl_be_lun *be_lun) 4871{ 4872 struct ctl_softc *ctl_softc; 4873 struct ctl_port *port; 4874 struct ctl_lun *lun; 4875 int retval; 4876 4877 ctl_softc = control_softc; 4878 4879 lun = (struct ctl_lun *)be_lun->ctl_lun; 4880 4881 mtx_lock(&ctl_softc->ctl_lock); 4882 mtx_lock(&lun->lun_lock); 4883 if (lun->flags & CTL_LUN_DISABLED) { 4884 mtx_unlock(&lun->lun_lock); 4885 mtx_unlock(&ctl_softc->ctl_lock); 4886 return (0); 4887 } 4888 lun->flags |= CTL_LUN_DISABLED; 4889 mtx_unlock(&lun->lun_lock); 4890 4891 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4892 mtx_unlock(&ctl_softc->ctl_lock); 4893 /* 4894 * Drop the lock before we call the frontend's disable 4895 * routine, to avoid lock order reversals. 4896 * 4897 * XXX KDM what happens if the frontend list changes while 4898 * we're traversing it? It's unlikely, but should be handled. 4899 */ 4900 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4901 lun->lun); 4902 mtx_lock(&ctl_softc->ctl_lock); 4903 if (retval != 0) { 4904 printf("ctl_alloc_lun: FETD %s port %d returned error " 4905 "%d for lun_disable on target %ju lun %jd\n", 4906 port->port_name, port->targ_port, retval, 4907 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4908 } 4909 } 4910 4911 mtx_unlock(&ctl_softc->ctl_lock); 4912 4913 return (0); 4914} 4915 4916int 4917ctl_start_lun(struct ctl_be_lun *be_lun) 4918{ 4919 struct ctl_softc *ctl_softc; 4920 struct ctl_lun *lun; 4921 4922 ctl_softc = control_softc; 4923 4924 lun = (struct ctl_lun *)be_lun->ctl_lun; 4925 4926 mtx_lock(&lun->lun_lock); 4927 lun->flags &= ~CTL_LUN_STOPPED; 4928 mtx_unlock(&lun->lun_lock); 4929 4930 return (0); 4931} 4932 4933int 4934ctl_stop_lun(struct ctl_be_lun *be_lun) 4935{ 4936 struct ctl_softc *ctl_softc; 4937 struct ctl_lun *lun; 4938 4939 ctl_softc = control_softc; 4940 4941 lun = (struct ctl_lun *)be_lun->ctl_lun; 4942 4943 mtx_lock(&lun->lun_lock); 4944 lun->flags |= CTL_LUN_STOPPED; 4945 mtx_unlock(&lun->lun_lock); 4946 4947 return (0); 4948} 4949 4950int 4951ctl_lun_offline(struct ctl_be_lun *be_lun) 4952{ 4953 struct ctl_softc *ctl_softc; 4954 struct ctl_lun *lun; 4955 4956 ctl_softc = control_softc; 4957 4958 lun = (struct ctl_lun *)be_lun->ctl_lun; 4959 4960 mtx_lock(&lun->lun_lock); 4961 lun->flags |= CTL_LUN_OFFLINE; 4962 mtx_unlock(&lun->lun_lock); 4963 4964 return (0); 4965} 4966 4967int 4968ctl_lun_online(struct ctl_be_lun *be_lun) 4969{ 4970 struct ctl_softc *ctl_softc; 4971 struct ctl_lun *lun; 4972 4973 ctl_softc = control_softc; 4974 4975 lun = (struct ctl_lun *)be_lun->ctl_lun; 4976 4977 mtx_lock(&lun->lun_lock); 4978 lun->flags &= ~CTL_LUN_OFFLINE; 4979 mtx_unlock(&lun->lun_lock); 4980 4981 return (0); 4982} 4983 4984int 4985ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4986{ 4987 struct ctl_softc *ctl_softc; 4988 struct ctl_lun *lun; 4989 4990 ctl_softc = control_softc; 4991 4992 lun = (struct ctl_lun *)be_lun->ctl_lun; 4993 4994 mtx_lock(&lun->lun_lock); 4995 4996 /* 4997 * The LUN needs to be disabled before it can be marked invalid. 4998 */ 4999 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5000 mtx_unlock(&lun->lun_lock); 5001 return (-1); 5002 } 5003 /* 5004 * Mark the LUN invalid. 5005 */ 5006 lun->flags |= CTL_LUN_INVALID; 5007 5008 /* 5009 * If there is nothing in the OOA queue, go ahead and free the LUN. 5010 * If we have something in the OOA queue, we'll free it when the 5011 * last I/O completes. 5012 */ 5013 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5014 mtx_unlock(&lun->lun_lock); 5015 mtx_lock(&ctl_softc->ctl_lock); 5016 ctl_free_lun(lun); 5017 mtx_unlock(&ctl_softc->ctl_lock); 5018 } else 5019 mtx_unlock(&lun->lun_lock); 5020 5021 return (0); 5022} 5023 5024int 5025ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5026{ 5027 struct ctl_softc *ctl_softc; 5028 struct ctl_lun *lun; 5029 5030 ctl_softc = control_softc; 5031 lun = (struct ctl_lun *)be_lun->ctl_lun; 5032 5033 mtx_lock(&lun->lun_lock); 5034 lun->flags |= CTL_LUN_INOPERABLE; 5035 mtx_unlock(&lun->lun_lock); 5036 5037 return (0); 5038} 5039 5040int 5041ctl_lun_operable(struct ctl_be_lun *be_lun) 5042{ 5043 struct ctl_softc *ctl_softc; 5044 struct ctl_lun *lun; 5045 5046 ctl_softc = control_softc; 5047 lun = (struct ctl_lun *)be_lun->ctl_lun; 5048 5049 mtx_lock(&lun->lun_lock); 5050 lun->flags &= ~CTL_LUN_INOPERABLE; 5051 mtx_unlock(&lun->lun_lock); 5052 5053 return (0); 5054} 5055 5056int 5057ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5058 int lock) 5059{ 5060 struct ctl_softc *softc; 5061 struct ctl_lun *lun; 5062 struct copan_aps_subpage *current_sp; 5063 struct ctl_page_index *page_index; 5064 int i; 5065 5066 softc = control_softc; 5067 5068 mtx_lock(&softc->ctl_lock); 5069 5070 lun = (struct ctl_lun *)be_lun->ctl_lun; 5071 mtx_lock(&lun->lun_lock); 5072 5073 page_index = NULL; 5074 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5075 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5076 APS_PAGE_CODE) 5077 continue; 5078 5079 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5080 continue; 5081 page_index = &lun->mode_pages.index[i]; 5082 } 5083 5084 if (page_index == NULL) { 5085 mtx_unlock(&lun->lun_lock); 5086 mtx_unlock(&softc->ctl_lock); 5087 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5088 (uintmax_t)lun->lun); 5089 return (1); 5090 } 5091#if 0 5092 if ((softc->aps_locked_lun != 0) 5093 && (softc->aps_locked_lun != lun->lun)) { 5094 printf("%s: attempt to lock LUN %llu when %llu is already " 5095 "locked\n"); 5096 mtx_unlock(&lun->lun_lock); 5097 mtx_unlock(&softc->ctl_lock); 5098 return (1); 5099 } 5100#endif 5101 5102 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5103 (page_index->page_len * CTL_PAGE_CURRENT)); 5104 5105 if (lock != 0) { 5106 current_sp->lock_active = APS_LOCK_ACTIVE; 5107 softc->aps_locked_lun = lun->lun; 5108 } else { 5109 current_sp->lock_active = 0; 5110 softc->aps_locked_lun = 0; 5111 } 5112 5113 5114 /* 5115 * If we're in HA mode, try to send the lock message to the other 5116 * side. 5117 */ 5118 if (ctl_is_single == 0) { 5119 int isc_retval; 5120 union ctl_ha_msg lock_msg; 5121 5122 lock_msg.hdr.nexus = *nexus; 5123 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5124 if (lock != 0) 5125 lock_msg.aps.lock_flag = 1; 5126 else 5127 lock_msg.aps.lock_flag = 0; 5128 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5129 sizeof(lock_msg), 0); 5130 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5131 printf("%s: APS (lock=%d) error returned from " 5132 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5133 mtx_unlock(&lun->lun_lock); 5134 mtx_unlock(&softc->ctl_lock); 5135 return (1); 5136 } 5137 } 5138 5139 mtx_unlock(&lun->lun_lock); 5140 mtx_unlock(&softc->ctl_lock); 5141 5142 return (0); 5143} 5144 5145void 5146ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5147{ 5148 struct ctl_lun *lun; 5149 struct ctl_softc *softc; 5150 int i; 5151 5152 softc = control_softc; 5153 5154 lun = (struct ctl_lun *)be_lun->ctl_lun; 5155 5156 mtx_lock(&lun->lun_lock); 5157 5158 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5159 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5160 5161 mtx_unlock(&lun->lun_lock); 5162} 5163 5164/* 5165 * Backend "memory move is complete" callback for requests that never 5166 * make it down to say RAIDCore's configuration code. 5167 */ 5168int 5169ctl_config_move_done(union ctl_io *io) 5170{ 5171 int retval; 5172 5173 retval = CTL_RETVAL_COMPLETE; 5174 5175 5176 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5177 /* 5178 * XXX KDM this shouldn't happen, but what if it does? 5179 */ 5180 if (io->io_hdr.io_type != CTL_IO_SCSI) 5181 panic("I/O type isn't CTL_IO_SCSI!"); 5182 5183 if ((io->io_hdr.port_status == 0) 5184 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5185 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5186 io->io_hdr.status = CTL_SUCCESS; 5187 else if ((io->io_hdr.port_status != 0) 5188 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5189 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5190 /* 5191 * For hardware error sense keys, the sense key 5192 * specific value is defined to be a retry count, 5193 * but we use it to pass back an internal FETD 5194 * error code. XXX KDM Hopefully the FETD is only 5195 * using 16 bits for an error code, since that's 5196 * all the space we have in the sks field. 5197 */ 5198 ctl_set_internal_failure(&io->scsiio, 5199 /*sks_valid*/ 1, 5200 /*retry_count*/ 5201 io->io_hdr.port_status); 5202 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5203 free(io->scsiio.kern_data_ptr, M_CTL); 5204 ctl_done(io); 5205 goto bailout; 5206 } 5207 5208 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5209 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5210 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5211 /* 5212 * XXX KDM just assuming a single pointer here, and not a 5213 * S/G list. If we start using S/G lists for config data, 5214 * we'll need to know how to clean them up here as well. 5215 */ 5216 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5217 free(io->scsiio.kern_data_ptr, M_CTL); 5218 /* Hopefully the user has already set the status... */ 5219 ctl_done(io); 5220 } else { 5221 /* 5222 * XXX KDM now we need to continue data movement. Some 5223 * options: 5224 * - call ctl_scsiio() again? We don't do this for data 5225 * writes, because for those at least we know ahead of 5226 * time where the write will go and how long it is. For 5227 * config writes, though, that information is largely 5228 * contained within the write itself, thus we need to 5229 * parse out the data again. 5230 * 5231 * - Call some other function once the data is in? 5232 */ 5233 5234 /* 5235 * XXX KDM call ctl_scsiio() again for now, and check flag 5236 * bits to see whether we're allocated or not. 5237 */ 5238 retval = ctl_scsiio(&io->scsiio); 5239 } 5240bailout: 5241 return (retval); 5242} 5243 5244/* 5245 * This gets called by a backend driver when it is done with a 5246 * data_submit method. 5247 */ 5248void 5249ctl_data_submit_done(union ctl_io *io) 5250{ 5251 /* 5252 * If the IO_CONT flag is set, we need to call the supplied 5253 * function to continue processing the I/O, instead of completing 5254 * the I/O just yet. 5255 * 5256 * If there is an error, though, we don't want to keep processing. 5257 * Instead, just send status back to the initiator. 5258 */ 5259 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5260 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5261 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5262 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5263 io->scsiio.io_cont(io); 5264 return; 5265 } 5266 ctl_done(io); 5267} 5268 5269/* 5270 * This gets called by a backend driver when it is done with a 5271 * configuration write. 5272 */ 5273void 5274ctl_config_write_done(union ctl_io *io) 5275{ 5276 uint8_t *buf; 5277 5278 /* 5279 * If the IO_CONT flag is set, we need to call the supplied 5280 * function to continue processing the I/O, instead of completing 5281 * the I/O just yet. 5282 * 5283 * If there is an error, though, we don't want to keep processing. 5284 * Instead, just send status back to the initiator. 5285 */ 5286 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5287 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5288 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5289 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5290 io->scsiio.io_cont(io); 5291 return; 5292 } 5293 /* 5294 * Since a configuration write can be done for commands that actually 5295 * have data allocated, like write buffer, and commands that have 5296 * no data, like start/stop unit, we need to check here. 5297 */ 5298 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5299 buf = io->scsiio.kern_data_ptr; 5300 else 5301 buf = NULL; 5302 ctl_done(io); 5303 if (buf) 5304 free(buf, M_CTL); 5305} 5306 5307/* 5308 * SCSI release command. 5309 */ 5310int 5311ctl_scsi_release(struct ctl_scsiio *ctsio) 5312{ 5313 int length, longid, thirdparty_id, resv_id; 5314 struct ctl_softc *ctl_softc; 5315 struct ctl_lun *lun; 5316 uint32_t residx; 5317 5318 length = 0; 5319 resv_id = 0; 5320 5321 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5322 5323 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5324 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5325 ctl_softc = control_softc; 5326 5327 switch (ctsio->cdb[0]) { 5328 case RELEASE_10: { 5329 struct scsi_release_10 *cdb; 5330 5331 cdb = (struct scsi_release_10 *)ctsio->cdb; 5332 5333 if (cdb->byte2 & SR10_LONGID) 5334 longid = 1; 5335 else 5336 thirdparty_id = cdb->thirdparty_id; 5337 5338 resv_id = cdb->resv_id; 5339 length = scsi_2btoul(cdb->length); 5340 break; 5341 } 5342 } 5343 5344 5345 /* 5346 * XXX KDM right now, we only support LUN reservation. We don't 5347 * support 3rd party reservations, or extent reservations, which 5348 * might actually need the parameter list. If we've gotten this 5349 * far, we've got a LUN reservation. Anything else got kicked out 5350 * above. So, according to SPC, ignore the length. 5351 */ 5352 length = 0; 5353 5354 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5355 && (length > 0)) { 5356 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5357 ctsio->kern_data_len = length; 5358 ctsio->kern_total_len = length; 5359 ctsio->kern_data_resid = 0; 5360 ctsio->kern_rel_offset = 0; 5361 ctsio->kern_sg_entries = 0; 5362 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5363 ctsio->be_move_done = ctl_config_move_done; 5364 ctl_datamove((union ctl_io *)ctsio); 5365 5366 return (CTL_RETVAL_COMPLETE); 5367 } 5368 5369 if (length > 0) 5370 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5371 5372 mtx_lock(&lun->lun_lock); 5373 5374 /* 5375 * According to SPC, it is not an error for an intiator to attempt 5376 * to release a reservation on a LUN that isn't reserved, or that 5377 * is reserved by another initiator. The reservation can only be 5378 * released, though, by the initiator who made it or by one of 5379 * several reset type events. 5380 */ 5381 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5382 lun->flags &= ~CTL_LUN_RESERVED; 5383 5384 mtx_unlock(&lun->lun_lock); 5385 5386 ctsio->scsi_status = SCSI_STATUS_OK; 5387 ctsio->io_hdr.status = CTL_SUCCESS; 5388 5389 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5390 free(ctsio->kern_data_ptr, M_CTL); 5391 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5392 } 5393 5394 ctl_done((union ctl_io *)ctsio); 5395 return (CTL_RETVAL_COMPLETE); 5396} 5397 5398int 5399ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5400{ 5401 int extent, thirdparty, longid; 5402 int resv_id, length; 5403 uint64_t thirdparty_id; 5404 struct ctl_softc *ctl_softc; 5405 struct ctl_lun *lun; 5406 uint32_t residx; 5407 5408 extent = 0; 5409 thirdparty = 0; 5410 longid = 0; 5411 resv_id = 0; 5412 length = 0; 5413 thirdparty_id = 0; 5414 5415 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5416 5417 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5418 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5419 ctl_softc = control_softc; 5420 5421 switch (ctsio->cdb[0]) { 5422 case RESERVE_10: { 5423 struct scsi_reserve_10 *cdb; 5424 5425 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5426 5427 if (cdb->byte2 & SR10_LONGID) 5428 longid = 1; 5429 else 5430 thirdparty_id = cdb->thirdparty_id; 5431 5432 resv_id = cdb->resv_id; 5433 length = scsi_2btoul(cdb->length); 5434 break; 5435 } 5436 } 5437 5438 /* 5439 * XXX KDM right now, we only support LUN reservation. We don't 5440 * support 3rd party reservations, or extent reservations, which 5441 * might actually need the parameter list. If we've gotten this 5442 * far, we've got a LUN reservation. Anything else got kicked out 5443 * above. So, according to SPC, ignore the length. 5444 */ 5445 length = 0; 5446 5447 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5448 && (length > 0)) { 5449 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5450 ctsio->kern_data_len = length; 5451 ctsio->kern_total_len = length; 5452 ctsio->kern_data_resid = 0; 5453 ctsio->kern_rel_offset = 0; 5454 ctsio->kern_sg_entries = 0; 5455 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5456 ctsio->be_move_done = ctl_config_move_done; 5457 ctl_datamove((union ctl_io *)ctsio); 5458 5459 return (CTL_RETVAL_COMPLETE); 5460 } 5461 5462 if (length > 0) 5463 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5464 5465 mtx_lock(&lun->lun_lock); 5466 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5467 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5468 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5469 goto bailout; 5470 } 5471 5472 lun->flags |= CTL_LUN_RESERVED; 5473 lun->res_idx = residx; 5474 5475 ctsio->scsi_status = SCSI_STATUS_OK; 5476 ctsio->io_hdr.status = CTL_SUCCESS; 5477 5478bailout: 5479 mtx_unlock(&lun->lun_lock); 5480 5481 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5482 free(ctsio->kern_data_ptr, M_CTL); 5483 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5484 } 5485 5486 ctl_done((union ctl_io *)ctsio); 5487 return (CTL_RETVAL_COMPLETE); 5488} 5489 5490int 5491ctl_start_stop(struct ctl_scsiio *ctsio) 5492{ 5493 struct scsi_start_stop_unit *cdb; 5494 struct ctl_lun *lun; 5495 struct ctl_softc *ctl_softc; 5496 int retval; 5497 5498 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5499 5500 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5501 ctl_softc = control_softc; 5502 retval = 0; 5503 5504 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5505 5506 /* 5507 * XXX KDM 5508 * We don't support the immediate bit on a stop unit. In order to 5509 * do that, we would need to code up a way to know that a stop is 5510 * pending, and hold off any new commands until it completes, one 5511 * way or another. Then we could accept or reject those commands 5512 * depending on its status. We would almost need to do the reverse 5513 * of what we do below for an immediate start -- return the copy of 5514 * the ctl_io to the FETD with status to send to the host (and to 5515 * free the copy!) and then free the original I/O once the stop 5516 * actually completes. That way, the OOA queue mechanism can work 5517 * to block commands that shouldn't proceed. Another alternative 5518 * would be to put the copy in the queue in place of the original, 5519 * and return the original back to the caller. That could be 5520 * slightly safer.. 5521 */ 5522 if ((cdb->byte2 & SSS_IMMED) 5523 && ((cdb->how & SSS_START) == 0)) { 5524 ctl_set_invalid_field(ctsio, 5525 /*sks_valid*/ 1, 5526 /*command*/ 1, 5527 /*field*/ 1, 5528 /*bit_valid*/ 1, 5529 /*bit*/ 0); 5530 ctl_done((union ctl_io *)ctsio); 5531 return (CTL_RETVAL_COMPLETE); 5532 } 5533 5534 if ((lun->flags & CTL_LUN_PR_RESERVED) 5535 && ((cdb->how & SSS_START)==0)) { 5536 uint32_t residx; 5537 5538 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5539 if (!lun->per_res[residx].registered 5540 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5541 5542 ctl_set_reservation_conflict(ctsio); 5543 ctl_done((union ctl_io *)ctsio); 5544 return (CTL_RETVAL_COMPLETE); 5545 } 5546 } 5547 5548 /* 5549 * If there is no backend on this device, we can't start or stop 5550 * it. In theory we shouldn't get any start/stop commands in the 5551 * first place at this level if the LUN doesn't have a backend. 5552 * That should get stopped by the command decode code. 5553 */ 5554 if (lun->backend == NULL) { 5555 ctl_set_invalid_opcode(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 return (CTL_RETVAL_COMPLETE); 5558 } 5559 5560 /* 5561 * XXX KDM Copan-specific offline behavior. 5562 * Figure out a reasonable way to port this? 5563 */ 5564#ifdef NEEDTOPORT 5565 mtx_lock(&lun->lun_lock); 5566 5567 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5568 && (lun->flags & CTL_LUN_OFFLINE)) { 5569 /* 5570 * If the LUN is offline, and the on/offline bit isn't set, 5571 * reject the start or stop. Otherwise, let it through. 5572 */ 5573 mtx_unlock(&lun->lun_lock); 5574 ctl_set_lun_not_ready(ctsio); 5575 ctl_done((union ctl_io *)ctsio); 5576 } else { 5577 mtx_unlock(&lun->lun_lock); 5578#endif /* NEEDTOPORT */ 5579 /* 5580 * This could be a start or a stop when we're online, 5581 * or a stop/offline or start/online. A start or stop when 5582 * we're offline is covered in the case above. 5583 */ 5584 /* 5585 * In the non-immediate case, we send the request to 5586 * the backend and return status to the user when 5587 * it is done. 5588 * 5589 * In the immediate case, we allocate a new ctl_io 5590 * to hold a copy of the request, and send that to 5591 * the backend. We then set good status on the 5592 * user's request and return it immediately. 5593 */ 5594 if (cdb->byte2 & SSS_IMMED) { 5595 union ctl_io *new_io; 5596 5597 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5598 if (new_io == NULL) { 5599 ctl_set_busy(ctsio); 5600 ctl_done((union ctl_io *)ctsio); 5601 } else { 5602 ctl_copy_io((union ctl_io *)ctsio, 5603 new_io); 5604 retval = lun->backend->config_write(new_io); 5605 ctl_set_success(ctsio); 5606 ctl_done((union ctl_io *)ctsio); 5607 } 5608 } else { 5609 retval = lun->backend->config_write( 5610 (union ctl_io *)ctsio); 5611 } 5612#ifdef NEEDTOPORT 5613 } 5614#endif 5615 return (retval); 5616} 5617 5618/* 5619 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5620 * we don't really do anything with the LBA and length fields if the user 5621 * passes them in. Instead we'll just flush out the cache for the entire 5622 * LUN. 5623 */ 5624int 5625ctl_sync_cache(struct ctl_scsiio *ctsio) 5626{ 5627 struct ctl_lun *lun; 5628 struct ctl_softc *ctl_softc; 5629 uint64_t starting_lba; 5630 uint32_t block_count; 5631 int retval; 5632 5633 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5634 5635 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5636 ctl_softc = control_softc; 5637 retval = 0; 5638 5639 switch (ctsio->cdb[0]) { 5640 case SYNCHRONIZE_CACHE: { 5641 struct scsi_sync_cache *cdb; 5642 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5643 5644 starting_lba = scsi_4btoul(cdb->begin_lba); 5645 block_count = scsi_2btoul(cdb->lb_count); 5646 break; 5647 } 5648 case SYNCHRONIZE_CACHE_16: { 5649 struct scsi_sync_cache_16 *cdb; 5650 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5651 5652 starting_lba = scsi_8btou64(cdb->begin_lba); 5653 block_count = scsi_4btoul(cdb->lb_count); 5654 break; 5655 } 5656 default: 5657 ctl_set_invalid_opcode(ctsio); 5658 ctl_done((union ctl_io *)ctsio); 5659 goto bailout; 5660 break; /* NOTREACHED */ 5661 } 5662 5663 /* 5664 * We check the LBA and length, but don't do anything with them. 5665 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5666 * get flushed. This check will just help satisfy anyone who wants 5667 * to see an error for an out of range LBA. 5668 */ 5669 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5670 ctl_set_lba_out_of_range(ctsio); 5671 ctl_done((union ctl_io *)ctsio); 5672 goto bailout; 5673 } 5674 5675 /* 5676 * If this LUN has no backend, we can't flush the cache anyway. 5677 */ 5678 if (lun->backend == NULL) { 5679 ctl_set_invalid_opcode(ctsio); 5680 ctl_done((union ctl_io *)ctsio); 5681 goto bailout; 5682 } 5683 5684 /* 5685 * Check to see whether we're configured to send the SYNCHRONIZE 5686 * CACHE command directly to the back end. 5687 */ 5688 mtx_lock(&lun->lun_lock); 5689 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5690 && (++(lun->sync_count) >= lun->sync_interval)) { 5691 lun->sync_count = 0; 5692 mtx_unlock(&lun->lun_lock); 5693 retval = lun->backend->config_write((union ctl_io *)ctsio); 5694 } else { 5695 mtx_unlock(&lun->lun_lock); 5696 ctl_set_success(ctsio); 5697 ctl_done((union ctl_io *)ctsio); 5698 } 5699 5700bailout: 5701 5702 return (retval); 5703} 5704 5705int 5706ctl_format(struct ctl_scsiio *ctsio) 5707{ 5708 struct scsi_format *cdb; 5709 struct ctl_lun *lun; 5710 struct ctl_softc *ctl_softc; 5711 int length, defect_list_len; 5712 5713 CTL_DEBUG_PRINT(("ctl_format\n")); 5714 5715 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5716 ctl_softc = control_softc; 5717 5718 cdb = (struct scsi_format *)ctsio->cdb; 5719 5720 length = 0; 5721 if (cdb->byte2 & SF_FMTDATA) { 5722 if (cdb->byte2 & SF_LONGLIST) 5723 length = sizeof(struct scsi_format_header_long); 5724 else 5725 length = sizeof(struct scsi_format_header_short); 5726 } 5727 5728 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5729 && (length > 0)) { 5730 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5731 ctsio->kern_data_len = length; 5732 ctsio->kern_total_len = length; 5733 ctsio->kern_data_resid = 0; 5734 ctsio->kern_rel_offset = 0; 5735 ctsio->kern_sg_entries = 0; 5736 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5737 ctsio->be_move_done = ctl_config_move_done; 5738 ctl_datamove((union ctl_io *)ctsio); 5739 5740 return (CTL_RETVAL_COMPLETE); 5741 } 5742 5743 defect_list_len = 0; 5744 5745 if (cdb->byte2 & SF_FMTDATA) { 5746 if (cdb->byte2 & SF_LONGLIST) { 5747 struct scsi_format_header_long *header; 5748 5749 header = (struct scsi_format_header_long *) 5750 ctsio->kern_data_ptr; 5751 5752 defect_list_len = scsi_4btoul(header->defect_list_len); 5753 if (defect_list_len != 0) { 5754 ctl_set_invalid_field(ctsio, 5755 /*sks_valid*/ 1, 5756 /*command*/ 0, 5757 /*field*/ 2, 5758 /*bit_valid*/ 0, 5759 /*bit*/ 0); 5760 goto bailout; 5761 } 5762 } else { 5763 struct scsi_format_header_short *header; 5764 5765 header = (struct scsi_format_header_short *) 5766 ctsio->kern_data_ptr; 5767 5768 defect_list_len = scsi_2btoul(header->defect_list_len); 5769 if (defect_list_len != 0) { 5770 ctl_set_invalid_field(ctsio, 5771 /*sks_valid*/ 1, 5772 /*command*/ 0, 5773 /*field*/ 2, 5774 /*bit_valid*/ 0, 5775 /*bit*/ 0); 5776 goto bailout; 5777 } 5778 } 5779 } 5780 5781 /* 5782 * The format command will clear out the "Medium format corrupted" 5783 * status if set by the configuration code. That status is really 5784 * just a way to notify the host that we have lost the media, and 5785 * get them to issue a command that will basically make them think 5786 * they're blowing away the media. 5787 */ 5788 mtx_lock(&lun->lun_lock); 5789 lun->flags &= ~CTL_LUN_INOPERABLE; 5790 mtx_unlock(&lun->lun_lock); 5791 5792 ctsio->scsi_status = SCSI_STATUS_OK; 5793 ctsio->io_hdr.status = CTL_SUCCESS; 5794bailout: 5795 5796 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5797 free(ctsio->kern_data_ptr, M_CTL); 5798 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5799 } 5800 5801 ctl_done((union ctl_io *)ctsio); 5802 return (CTL_RETVAL_COMPLETE); 5803} 5804 5805int 5806ctl_read_buffer(struct ctl_scsiio *ctsio) 5807{ 5808 struct scsi_read_buffer *cdb; 5809 struct ctl_lun *lun; 5810 int buffer_offset, len; 5811 static uint8_t descr[4]; 5812 static uint8_t echo_descr[4] = { 0 }; 5813 5814 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5815 5816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5817 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5818 5819 if (lun->flags & CTL_LUN_PR_RESERVED) { 5820 uint32_t residx; 5821 5822 /* 5823 * XXX KDM need a lock here. 5824 */ 5825 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5826 if ((lun->res_type == SPR_TYPE_EX_AC 5827 && residx != lun->pr_res_idx) 5828 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5829 || lun->res_type == SPR_TYPE_EX_AC_AR) 5830 && !lun->per_res[residx].registered)) { 5831 ctl_set_reservation_conflict(ctsio); 5832 ctl_done((union ctl_io *)ctsio); 5833 return (CTL_RETVAL_COMPLETE); 5834 } 5835 } 5836 5837 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5838 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5839 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5840 ctl_set_invalid_field(ctsio, 5841 /*sks_valid*/ 1, 5842 /*command*/ 1, 5843 /*field*/ 1, 5844 /*bit_valid*/ 1, 5845 /*bit*/ 4); 5846 ctl_done((union ctl_io *)ctsio); 5847 return (CTL_RETVAL_COMPLETE); 5848 } 5849 5850 len = scsi_3btoul(cdb->length); 5851 buffer_offset = scsi_3btoul(cdb->offset); 5852 5853 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5854 ctl_set_invalid_field(ctsio, 5855 /*sks_valid*/ 1, 5856 /*command*/ 1, 5857 /*field*/ 6, 5858 /*bit_valid*/ 0, 5859 /*bit*/ 0); 5860 ctl_done((union ctl_io *)ctsio); 5861 return (CTL_RETVAL_COMPLETE); 5862 } 5863 5864 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5865 descr[0] = 0; 5866 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5867 ctsio->kern_data_ptr = descr; 5868 len = min(len, sizeof(descr)); 5869 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5870 ctsio->kern_data_ptr = echo_descr; 5871 len = min(len, sizeof(echo_descr)); 5872 } else 5873 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5874 ctsio->kern_data_len = len; 5875 ctsio->kern_total_len = len; 5876 ctsio->kern_data_resid = 0; 5877 ctsio->kern_rel_offset = 0; 5878 ctsio->kern_sg_entries = 0; 5879 ctsio->be_move_done = ctl_config_move_done; 5880 ctl_datamove((union ctl_io *)ctsio); 5881 5882 return (CTL_RETVAL_COMPLETE); 5883} 5884 5885int 5886ctl_write_buffer(struct ctl_scsiio *ctsio) 5887{ 5888 struct scsi_write_buffer *cdb; 5889 struct ctl_lun *lun; 5890 int buffer_offset, len; 5891 5892 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5893 5894 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5895 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5896 5897 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5898 ctl_set_invalid_field(ctsio, 5899 /*sks_valid*/ 1, 5900 /*command*/ 1, 5901 /*field*/ 1, 5902 /*bit_valid*/ 1, 5903 /*bit*/ 4); 5904 ctl_done((union ctl_io *)ctsio); 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 len = scsi_3btoul(cdb->length); 5909 buffer_offset = scsi_3btoul(cdb->offset); 5910 5911 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5912 ctl_set_invalid_field(ctsio, 5913 /*sks_valid*/ 1, 5914 /*command*/ 1, 5915 /*field*/ 6, 5916 /*bit_valid*/ 0, 5917 /*bit*/ 0); 5918 ctl_done((union ctl_io *)ctsio); 5919 return (CTL_RETVAL_COMPLETE); 5920 } 5921 5922 /* 5923 * If we've got a kernel request that hasn't been malloced yet, 5924 * malloc it and tell the caller the data buffer is here. 5925 */ 5926 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5927 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5928 ctsio->kern_data_len = len; 5929 ctsio->kern_total_len = len; 5930 ctsio->kern_data_resid = 0; 5931 ctsio->kern_rel_offset = 0; 5932 ctsio->kern_sg_entries = 0; 5933 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5934 ctsio->be_move_done = ctl_config_move_done; 5935 ctl_datamove((union ctl_io *)ctsio); 5936 5937 return (CTL_RETVAL_COMPLETE); 5938 } 5939 5940 ctl_done((union ctl_io *)ctsio); 5941 5942 return (CTL_RETVAL_COMPLETE); 5943} 5944 5945int 5946ctl_write_same(struct ctl_scsiio *ctsio) 5947{ 5948 struct ctl_lun *lun; 5949 struct ctl_lba_len_flags *lbalen; 5950 uint64_t lba; 5951 uint32_t num_blocks; 5952 int len, retval; 5953 uint8_t byte2; 5954 5955 retval = CTL_RETVAL_COMPLETE; 5956 5957 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5958 5959 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5960 5961 switch (ctsio->cdb[0]) { 5962 case WRITE_SAME_10: { 5963 struct scsi_write_same_10 *cdb; 5964 5965 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5966 5967 lba = scsi_4btoul(cdb->addr); 5968 num_blocks = scsi_2btoul(cdb->length); 5969 byte2 = cdb->byte2; 5970 break; 5971 } 5972 case WRITE_SAME_16: { 5973 struct scsi_write_same_16 *cdb; 5974 5975 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5976 5977 lba = scsi_8btou64(cdb->addr); 5978 num_blocks = scsi_4btoul(cdb->length); 5979 byte2 = cdb->byte2; 5980 break; 5981 } 5982 default: 5983 /* 5984 * We got a command we don't support. This shouldn't 5985 * happen, commands should be filtered out above us. 5986 */ 5987 ctl_set_invalid_opcode(ctsio); 5988 ctl_done((union ctl_io *)ctsio); 5989 5990 return (CTL_RETVAL_COMPLETE); 5991 break; /* NOTREACHED */ 5992 } 5993 5994 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5995 if ((byte2 & SWS_UNMAP) == 0 && 5996 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5997 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5998 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5999 ctl_done((union ctl_io *)ctsio); 6000 return (CTL_RETVAL_COMPLETE); 6001 } 6002 6003 /* 6004 * The first check is to make sure we're in bounds, the second 6005 * check is to catch wrap-around problems. If the lba + num blocks 6006 * is less than the lba, then we've wrapped around and the block 6007 * range is invalid anyway. 6008 */ 6009 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6010 || ((lba + num_blocks) < lba)) { 6011 ctl_set_lba_out_of_range(ctsio); 6012 ctl_done((union ctl_io *)ctsio); 6013 return (CTL_RETVAL_COMPLETE); 6014 } 6015 6016 /* Zero number of blocks means "to the last logical block" */ 6017 if (num_blocks == 0) { 6018 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6019 ctl_set_invalid_field(ctsio, 6020 /*sks_valid*/ 0, 6021 /*command*/ 1, 6022 /*field*/ 0, 6023 /*bit_valid*/ 0, 6024 /*bit*/ 0); 6025 ctl_done((union ctl_io *)ctsio); 6026 return (CTL_RETVAL_COMPLETE); 6027 } 6028 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6029 } 6030 6031 len = lun->be_lun->blocksize; 6032 6033 /* 6034 * If we've got a kernel request that hasn't been malloced yet, 6035 * malloc it and tell the caller the data buffer is here. 6036 */ 6037 if ((byte2 & SWS_NDOB) == 0 && 6038 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6039 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6040 ctsio->kern_data_len = len; 6041 ctsio->kern_total_len = len; 6042 ctsio->kern_data_resid = 0; 6043 ctsio->kern_rel_offset = 0; 6044 ctsio->kern_sg_entries = 0; 6045 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6046 ctsio->be_move_done = ctl_config_move_done; 6047 ctl_datamove((union ctl_io *)ctsio); 6048 6049 return (CTL_RETVAL_COMPLETE); 6050 } 6051 6052 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6053 lbalen->lba = lba; 6054 lbalen->len = num_blocks; 6055 lbalen->flags = byte2; 6056 retval = lun->backend->config_write((union ctl_io *)ctsio); 6057 6058 return (retval); 6059} 6060 6061int 6062ctl_unmap(struct ctl_scsiio *ctsio) 6063{ 6064 struct ctl_lun *lun; 6065 struct scsi_unmap *cdb; 6066 struct ctl_ptr_len_flags *ptrlen; 6067 struct scsi_unmap_header *hdr; 6068 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6069 uint64_t lba; 6070 uint32_t num_blocks; 6071 int len, retval; 6072 uint8_t byte2; 6073 6074 retval = CTL_RETVAL_COMPLETE; 6075 6076 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6077 6078 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6079 cdb = (struct scsi_unmap *)ctsio->cdb; 6080 6081 len = scsi_2btoul(cdb->length); 6082 byte2 = cdb->byte2; 6083 6084 /* 6085 * If we've got a kernel request that hasn't been malloced yet, 6086 * malloc it and tell the caller the data buffer is here. 6087 */ 6088 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6089 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6090 ctsio->kern_data_len = len; 6091 ctsio->kern_total_len = len; 6092 ctsio->kern_data_resid = 0; 6093 ctsio->kern_rel_offset = 0; 6094 ctsio->kern_sg_entries = 0; 6095 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6096 ctsio->be_move_done = ctl_config_move_done; 6097 ctl_datamove((union ctl_io *)ctsio); 6098 6099 return (CTL_RETVAL_COMPLETE); 6100 } 6101 6102 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6103 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6104 if (len < sizeof (*hdr) || 6105 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6106 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6107 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6108 ctl_set_invalid_field(ctsio, 6109 /*sks_valid*/ 0, 6110 /*command*/ 0, 6111 /*field*/ 0, 6112 /*bit_valid*/ 0, 6113 /*bit*/ 0); 6114 ctl_done((union ctl_io *)ctsio); 6115 return (CTL_RETVAL_COMPLETE); 6116 } 6117 len = scsi_2btoul(hdr->desc_length); 6118 buf = (struct scsi_unmap_desc *)(hdr + 1); 6119 end = buf + len / sizeof(*buf); 6120 6121 endnz = buf; 6122 for (range = buf; range < end; range++) { 6123 lba = scsi_8btou64(range->lba); 6124 num_blocks = scsi_4btoul(range->length); 6125 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6126 || ((lba + num_blocks) < lba)) { 6127 ctl_set_lba_out_of_range(ctsio); 6128 ctl_done((union ctl_io *)ctsio); 6129 return (CTL_RETVAL_COMPLETE); 6130 } 6131 if (num_blocks != 0) 6132 endnz = range + 1; 6133 } 6134 6135 /* 6136 * Block backend can not handle zero last range. 6137 * Filter it out and return if there is nothing left. 6138 */ 6139 len = (uint8_t *)endnz - (uint8_t *)buf; 6140 if (len == 0) { 6141 ctl_set_success(ctsio); 6142 ctl_done((union ctl_io *)ctsio); 6143 return (CTL_RETVAL_COMPLETE); 6144 } 6145 6146 mtx_lock(&lun->lun_lock); 6147 ptrlen = (struct ctl_ptr_len_flags *) 6148 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6149 ptrlen->ptr = (void *)buf; 6150 ptrlen->len = len; 6151 ptrlen->flags = byte2; 6152 ctl_check_blocked(lun); 6153 mtx_unlock(&lun->lun_lock); 6154 6155 retval = lun->backend->config_write((union ctl_io *)ctsio); 6156 return (retval); 6157} 6158 6159/* 6160 * Note that this function currently doesn't actually do anything inside 6161 * CTL to enforce things if the DQue bit is turned on. 6162 * 6163 * Also note that this function can't be used in the default case, because 6164 * the DQue bit isn't set in the changeable mask for the control mode page 6165 * anyway. This is just here as an example for how to implement a page 6166 * handler, and a placeholder in case we want to allow the user to turn 6167 * tagged queueing on and off. 6168 * 6169 * The D_SENSE bit handling is functional, however, and will turn 6170 * descriptor sense on and off for a given LUN. 6171 */ 6172int 6173ctl_control_page_handler(struct ctl_scsiio *ctsio, 6174 struct ctl_page_index *page_index, uint8_t *page_ptr) 6175{ 6176 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6177 struct ctl_lun *lun; 6178 struct ctl_softc *softc; 6179 int set_ua; 6180 uint32_t initidx; 6181 6182 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6183 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6184 set_ua = 0; 6185 6186 user_cp = (struct scsi_control_page *)page_ptr; 6187 current_cp = (struct scsi_control_page *) 6188 (page_index->page_data + (page_index->page_len * 6189 CTL_PAGE_CURRENT)); 6190 saved_cp = (struct scsi_control_page *) 6191 (page_index->page_data + (page_index->page_len * 6192 CTL_PAGE_SAVED)); 6193 6194 softc = control_softc; 6195 6196 mtx_lock(&lun->lun_lock); 6197 if (((current_cp->rlec & SCP_DSENSE) == 0) 6198 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6199 /* 6200 * Descriptor sense is currently turned off and the user 6201 * wants to turn it on. 6202 */ 6203 current_cp->rlec |= SCP_DSENSE; 6204 saved_cp->rlec |= SCP_DSENSE; 6205 lun->flags |= CTL_LUN_SENSE_DESC; 6206 set_ua = 1; 6207 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6208 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6209 /* 6210 * Descriptor sense is currently turned on, and the user 6211 * wants to turn it off. 6212 */ 6213 current_cp->rlec &= ~SCP_DSENSE; 6214 saved_cp->rlec &= ~SCP_DSENSE; 6215 lun->flags &= ~CTL_LUN_SENSE_DESC; 6216 set_ua = 1; 6217 } 6218 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6219 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6220 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6221 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6222 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6223 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6224 set_ua = 1; 6225 } 6226 if ((current_cp->eca_and_aen & SCP_SWP) != 6227 (user_cp->eca_and_aen & SCP_SWP)) { 6228 current_cp->eca_and_aen &= ~SCP_SWP; 6229 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6230 saved_cp->eca_and_aen &= ~SCP_SWP; 6231 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6232 set_ua = 1; 6233 } 6234 if (set_ua != 0) { 6235 int i; 6236 /* 6237 * Let other initiators know that the mode 6238 * parameters for this LUN have changed. 6239 */ 6240 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6241 if (i == initidx) 6242 continue; 6243 6244 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6245 } 6246 } 6247 mtx_unlock(&lun->lun_lock); 6248 6249 return (0); 6250} 6251 6252int 6253ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6254 struct ctl_page_index *page_index, uint8_t *page_ptr) 6255{ 6256 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6257 struct ctl_lun *lun; 6258 int set_ua; 6259 uint32_t initidx; 6260 6261 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6262 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6263 set_ua = 0; 6264 6265 user_cp = (struct scsi_caching_page *)page_ptr; 6266 current_cp = (struct scsi_caching_page *) 6267 (page_index->page_data + (page_index->page_len * 6268 CTL_PAGE_CURRENT)); 6269 saved_cp = (struct scsi_caching_page *) 6270 (page_index->page_data + (page_index->page_len * 6271 CTL_PAGE_SAVED)); 6272 6273 mtx_lock(&lun->lun_lock); 6274 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6275 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6276 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6277 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6278 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6279 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6280 set_ua = 1; 6281 } 6282 if (set_ua != 0) { 6283 int i; 6284 /* 6285 * Let other initiators know that the mode 6286 * parameters for this LUN have changed. 6287 */ 6288 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6289 if (i == initidx) 6290 continue; 6291 6292 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6293 } 6294 } 6295 mtx_unlock(&lun->lun_lock); 6296 6297 return (0); 6298} 6299 6300int 6301ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6302 struct ctl_page_index *page_index, uint8_t *page_ptr) 6303{ 6304 return (0); 6305} 6306 6307int 6308ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6309 struct ctl_page_index *page_index, int pc) 6310{ 6311 struct copan_power_subpage *page; 6312 6313 page = (struct copan_power_subpage *)page_index->page_data + 6314 (page_index->page_len * pc); 6315 6316 switch (pc) { 6317 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6318 /* 6319 * We don't update the changable bits for this page. 6320 */ 6321 break; 6322 case SMS_PAGE_CTRL_CURRENT >> 6: 6323 case SMS_PAGE_CTRL_DEFAULT >> 6: 6324 case SMS_PAGE_CTRL_SAVED >> 6: 6325#ifdef NEEDTOPORT 6326 ctl_update_power_subpage(page); 6327#endif 6328 break; 6329 default: 6330#ifdef NEEDTOPORT 6331 EPRINT(0, "Invalid PC %d!!", pc); 6332#endif 6333 break; 6334 } 6335 return (0); 6336} 6337 6338 6339int 6340ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6341 struct ctl_page_index *page_index, uint8_t *page_ptr) 6342{ 6343 struct copan_aps_subpage *user_sp; 6344 struct copan_aps_subpage *current_sp; 6345 union ctl_modepage_info *modepage_info; 6346 struct ctl_softc *softc; 6347 struct ctl_lun *lun; 6348 int retval; 6349 6350 retval = CTL_RETVAL_COMPLETE; 6351 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6352 (page_index->page_len * CTL_PAGE_CURRENT)); 6353 softc = control_softc; 6354 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6355 6356 user_sp = (struct copan_aps_subpage *)page_ptr; 6357 6358 modepage_info = (union ctl_modepage_info *) 6359 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6360 6361 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6362 modepage_info->header.subpage = page_index->subpage; 6363 modepage_info->aps.lock_active = user_sp->lock_active; 6364 6365 mtx_lock(&softc->ctl_lock); 6366 6367 /* 6368 * If there is a request to lock the LUN and another LUN is locked 6369 * this is an error. If the requested LUN is already locked ignore 6370 * the request. If no LUN is locked attempt to lock it. 6371 * if there is a request to unlock the LUN and the LUN is currently 6372 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6373 * if another LUN is locked or no LUN is locked. 6374 */ 6375 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6376 if (softc->aps_locked_lun == lun->lun) { 6377 /* 6378 * This LUN is already locked, so we're done. 6379 */ 6380 retval = CTL_RETVAL_COMPLETE; 6381 } else if (softc->aps_locked_lun == 0) { 6382 /* 6383 * No one has the lock, pass the request to the 6384 * backend. 6385 */ 6386 retval = lun->backend->config_write( 6387 (union ctl_io *)ctsio); 6388 } else { 6389 /* 6390 * Someone else has the lock, throw out the request. 6391 */ 6392 ctl_set_already_locked(ctsio); 6393 free(ctsio->kern_data_ptr, M_CTL); 6394 ctl_done((union ctl_io *)ctsio); 6395 6396 /* 6397 * Set the return value so that ctl_do_mode_select() 6398 * won't try to complete the command. We already 6399 * completed it here. 6400 */ 6401 retval = CTL_RETVAL_ERROR; 6402 } 6403 } else if (softc->aps_locked_lun == lun->lun) { 6404 /* 6405 * This LUN is locked, so pass the unlock request to the 6406 * backend. 6407 */ 6408 retval = lun->backend->config_write((union ctl_io *)ctsio); 6409 } 6410 mtx_unlock(&softc->ctl_lock); 6411 6412 return (retval); 6413} 6414 6415int 6416ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6417 struct ctl_page_index *page_index, 6418 uint8_t *page_ptr) 6419{ 6420 uint8_t *c; 6421 int i; 6422 6423 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6424 ctl_time_io_secs = 6425 (c[0] << 8) | 6426 (c[1] << 0) | 6427 0; 6428 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6429 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6430 printf("page data:"); 6431 for (i=0; i<8; i++) 6432 printf(" %.2x",page_ptr[i]); 6433 printf("\n"); 6434 return (0); 6435} 6436 6437int 6438ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6439 struct ctl_page_index *page_index, 6440 int pc) 6441{ 6442 struct copan_debugconf_subpage *page; 6443 6444 page = (struct copan_debugconf_subpage *)page_index->page_data + 6445 (page_index->page_len * pc); 6446 6447 switch (pc) { 6448 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6449 case SMS_PAGE_CTRL_DEFAULT >> 6: 6450 case SMS_PAGE_CTRL_SAVED >> 6: 6451 /* 6452 * We don't update the changable or default bits for this page. 6453 */ 6454 break; 6455 case SMS_PAGE_CTRL_CURRENT >> 6: 6456 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6457 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6458 break; 6459 default: 6460#ifdef NEEDTOPORT 6461 EPRINT(0, "Invalid PC %d!!", pc); 6462#endif /* NEEDTOPORT */ 6463 break; 6464 } 6465 return (0); 6466} 6467 6468 6469static int 6470ctl_do_mode_select(union ctl_io *io) 6471{ 6472 struct scsi_mode_page_header *page_header; 6473 struct ctl_page_index *page_index; 6474 struct ctl_scsiio *ctsio; 6475 int control_dev, page_len; 6476 int page_len_offset, page_len_size; 6477 union ctl_modepage_info *modepage_info; 6478 struct ctl_lun *lun; 6479 int *len_left, *len_used; 6480 int retval, i; 6481 6482 ctsio = &io->scsiio; 6483 page_index = NULL; 6484 page_len = 0; 6485 retval = CTL_RETVAL_COMPLETE; 6486 6487 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6488 6489 if (lun->be_lun->lun_type != T_DIRECT) 6490 control_dev = 1; 6491 else 6492 control_dev = 0; 6493 6494 modepage_info = (union ctl_modepage_info *) 6495 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6496 len_left = &modepage_info->header.len_left; 6497 len_used = &modepage_info->header.len_used; 6498 6499do_next_page: 6500 6501 page_header = (struct scsi_mode_page_header *) 6502 (ctsio->kern_data_ptr + *len_used); 6503 6504 if (*len_left == 0) { 6505 free(ctsio->kern_data_ptr, M_CTL); 6506 ctl_set_success(ctsio); 6507 ctl_done((union ctl_io *)ctsio); 6508 return (CTL_RETVAL_COMPLETE); 6509 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6510 6511 free(ctsio->kern_data_ptr, M_CTL); 6512 ctl_set_param_len_error(ctsio); 6513 ctl_done((union ctl_io *)ctsio); 6514 return (CTL_RETVAL_COMPLETE); 6515 6516 } else if ((page_header->page_code & SMPH_SPF) 6517 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6518 6519 free(ctsio->kern_data_ptr, M_CTL); 6520 ctl_set_param_len_error(ctsio); 6521 ctl_done((union ctl_io *)ctsio); 6522 return (CTL_RETVAL_COMPLETE); 6523 } 6524 6525 6526 /* 6527 * XXX KDM should we do something with the block descriptor? 6528 */ 6529 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6530 6531 if ((control_dev != 0) 6532 && (lun->mode_pages.index[i].page_flags & 6533 CTL_PAGE_FLAG_DISK_ONLY)) 6534 continue; 6535 6536 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6537 (page_header->page_code & SMPH_PC_MASK)) 6538 continue; 6539 6540 /* 6541 * If neither page has a subpage code, then we've got a 6542 * match. 6543 */ 6544 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6545 && ((page_header->page_code & SMPH_SPF) == 0)) { 6546 page_index = &lun->mode_pages.index[i]; 6547 page_len = page_header->page_length; 6548 break; 6549 } 6550 6551 /* 6552 * If both pages have subpages, then the subpage numbers 6553 * have to match. 6554 */ 6555 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6556 && (page_header->page_code & SMPH_SPF)) { 6557 struct scsi_mode_page_header_sp *sph; 6558 6559 sph = (struct scsi_mode_page_header_sp *)page_header; 6560 6561 if (lun->mode_pages.index[i].subpage == 6562 sph->subpage) { 6563 page_index = &lun->mode_pages.index[i]; 6564 page_len = scsi_2btoul(sph->page_length); 6565 break; 6566 } 6567 } 6568 } 6569 6570 /* 6571 * If we couldn't find the page, or if we don't have a mode select 6572 * handler for it, send back an error to the user. 6573 */ 6574 if ((page_index == NULL) 6575 || (page_index->select_handler == NULL)) { 6576 ctl_set_invalid_field(ctsio, 6577 /*sks_valid*/ 1, 6578 /*command*/ 0, 6579 /*field*/ *len_used, 6580 /*bit_valid*/ 0, 6581 /*bit*/ 0); 6582 free(ctsio->kern_data_ptr, M_CTL); 6583 ctl_done((union ctl_io *)ctsio); 6584 return (CTL_RETVAL_COMPLETE); 6585 } 6586 6587 if (page_index->page_code & SMPH_SPF) { 6588 page_len_offset = 2; 6589 page_len_size = 2; 6590 } else { 6591 page_len_size = 1; 6592 page_len_offset = 1; 6593 } 6594 6595 /* 6596 * If the length the initiator gives us isn't the one we specify in 6597 * the mode page header, or if they didn't specify enough data in 6598 * the CDB to avoid truncating this page, kick out the request. 6599 */ 6600 if ((page_len != (page_index->page_len - page_len_offset - 6601 page_len_size)) 6602 || (*len_left < page_index->page_len)) { 6603 6604 6605 ctl_set_invalid_field(ctsio, 6606 /*sks_valid*/ 1, 6607 /*command*/ 0, 6608 /*field*/ *len_used + page_len_offset, 6609 /*bit_valid*/ 0, 6610 /*bit*/ 0); 6611 free(ctsio->kern_data_ptr, M_CTL); 6612 ctl_done((union ctl_io *)ctsio); 6613 return (CTL_RETVAL_COMPLETE); 6614 } 6615 6616 /* 6617 * Run through the mode page, checking to make sure that the bits 6618 * the user changed are actually legal for him to change. 6619 */ 6620 for (i = 0; i < page_index->page_len; i++) { 6621 uint8_t *user_byte, *change_mask, *current_byte; 6622 int bad_bit; 6623 int j; 6624 6625 user_byte = (uint8_t *)page_header + i; 6626 change_mask = page_index->page_data + 6627 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6628 current_byte = page_index->page_data + 6629 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6630 6631 /* 6632 * Check to see whether the user set any bits in this byte 6633 * that he is not allowed to set. 6634 */ 6635 if ((*user_byte & ~(*change_mask)) == 6636 (*current_byte & ~(*change_mask))) 6637 continue; 6638 6639 /* 6640 * Go through bit by bit to determine which one is illegal. 6641 */ 6642 bad_bit = 0; 6643 for (j = 7; j >= 0; j--) { 6644 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6645 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6646 bad_bit = i; 6647 break; 6648 } 6649 } 6650 ctl_set_invalid_field(ctsio, 6651 /*sks_valid*/ 1, 6652 /*command*/ 0, 6653 /*field*/ *len_used + i, 6654 /*bit_valid*/ 1, 6655 /*bit*/ bad_bit); 6656 free(ctsio->kern_data_ptr, M_CTL); 6657 ctl_done((union ctl_io *)ctsio); 6658 return (CTL_RETVAL_COMPLETE); 6659 } 6660 6661 /* 6662 * Decrement these before we call the page handler, since we may 6663 * end up getting called back one way or another before the handler 6664 * returns to this context. 6665 */ 6666 *len_left -= page_index->page_len; 6667 *len_used += page_index->page_len; 6668 6669 retval = page_index->select_handler(ctsio, page_index, 6670 (uint8_t *)page_header); 6671 6672 /* 6673 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6674 * wait until this queued command completes to finish processing 6675 * the mode page. If it returns anything other than 6676 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6677 * already set the sense information, freed the data pointer, and 6678 * completed the io for us. 6679 */ 6680 if (retval != CTL_RETVAL_COMPLETE) 6681 goto bailout_no_done; 6682 6683 /* 6684 * If the initiator sent us more than one page, parse the next one. 6685 */ 6686 if (*len_left > 0) 6687 goto do_next_page; 6688 6689 ctl_set_success(ctsio); 6690 free(ctsio->kern_data_ptr, M_CTL); 6691 ctl_done((union ctl_io *)ctsio); 6692 6693bailout_no_done: 6694 6695 return (CTL_RETVAL_COMPLETE); 6696 6697} 6698 6699int 6700ctl_mode_select(struct ctl_scsiio *ctsio) 6701{ 6702 int param_len, pf, sp; 6703 int header_size, bd_len; 6704 int len_left, len_used; 6705 struct ctl_page_index *page_index; 6706 struct ctl_lun *lun; 6707 int control_dev, page_len; 6708 union ctl_modepage_info *modepage_info; 6709 int retval; 6710 6711 pf = 0; 6712 sp = 0; 6713 page_len = 0; 6714 len_used = 0; 6715 len_left = 0; 6716 retval = 0; 6717 bd_len = 0; 6718 page_index = NULL; 6719 6720 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6721 6722 if (lun->be_lun->lun_type != T_DIRECT) 6723 control_dev = 1; 6724 else 6725 control_dev = 0; 6726 6727 switch (ctsio->cdb[0]) { 6728 case MODE_SELECT_6: { 6729 struct scsi_mode_select_6 *cdb; 6730 6731 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6732 6733 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6734 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6735 6736 param_len = cdb->length; 6737 header_size = sizeof(struct scsi_mode_header_6); 6738 break; 6739 } 6740 case MODE_SELECT_10: { 6741 struct scsi_mode_select_10 *cdb; 6742 6743 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6744 6745 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6746 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6747 6748 param_len = scsi_2btoul(cdb->length); 6749 header_size = sizeof(struct scsi_mode_header_10); 6750 break; 6751 } 6752 default: 6753 ctl_set_invalid_opcode(ctsio); 6754 ctl_done((union ctl_io *)ctsio); 6755 return (CTL_RETVAL_COMPLETE); 6756 break; /* NOTREACHED */ 6757 } 6758 6759 /* 6760 * From SPC-3: 6761 * "A parameter list length of zero indicates that the Data-Out Buffer 6762 * shall be empty. This condition shall not be considered as an error." 6763 */ 6764 if (param_len == 0) { 6765 ctl_set_success(ctsio); 6766 ctl_done((union ctl_io *)ctsio); 6767 return (CTL_RETVAL_COMPLETE); 6768 } 6769 6770 /* 6771 * Since we'll hit this the first time through, prior to 6772 * allocation, we don't need to free a data buffer here. 6773 */ 6774 if (param_len < header_size) { 6775 ctl_set_param_len_error(ctsio); 6776 ctl_done((union ctl_io *)ctsio); 6777 return (CTL_RETVAL_COMPLETE); 6778 } 6779 6780 /* 6781 * Allocate the data buffer and grab the user's data. In theory, 6782 * we shouldn't have to sanity check the parameter list length here 6783 * because the maximum size is 64K. We should be able to malloc 6784 * that much without too many problems. 6785 */ 6786 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6787 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6788 ctsio->kern_data_len = param_len; 6789 ctsio->kern_total_len = param_len; 6790 ctsio->kern_data_resid = 0; 6791 ctsio->kern_rel_offset = 0; 6792 ctsio->kern_sg_entries = 0; 6793 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6794 ctsio->be_move_done = ctl_config_move_done; 6795 ctl_datamove((union ctl_io *)ctsio); 6796 6797 return (CTL_RETVAL_COMPLETE); 6798 } 6799 6800 switch (ctsio->cdb[0]) { 6801 case MODE_SELECT_6: { 6802 struct scsi_mode_header_6 *mh6; 6803 6804 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6805 bd_len = mh6->blk_desc_len; 6806 break; 6807 } 6808 case MODE_SELECT_10: { 6809 struct scsi_mode_header_10 *mh10; 6810 6811 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6812 bd_len = scsi_2btoul(mh10->blk_desc_len); 6813 break; 6814 } 6815 default: 6816 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6817 break; 6818 } 6819 6820 if (param_len < (header_size + bd_len)) { 6821 free(ctsio->kern_data_ptr, M_CTL); 6822 ctl_set_param_len_error(ctsio); 6823 ctl_done((union ctl_io *)ctsio); 6824 return (CTL_RETVAL_COMPLETE); 6825 } 6826 6827 /* 6828 * Set the IO_CONT flag, so that if this I/O gets passed to 6829 * ctl_config_write_done(), it'll get passed back to 6830 * ctl_do_mode_select() for further processing, or completion if 6831 * we're all done. 6832 */ 6833 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6834 ctsio->io_cont = ctl_do_mode_select; 6835 6836 modepage_info = (union ctl_modepage_info *) 6837 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6838 6839 memset(modepage_info, 0, sizeof(*modepage_info)); 6840 6841 len_left = param_len - header_size - bd_len; 6842 len_used = header_size + bd_len; 6843 6844 modepage_info->header.len_left = len_left; 6845 modepage_info->header.len_used = len_used; 6846 6847 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6848} 6849 6850int 6851ctl_mode_sense(struct ctl_scsiio *ctsio) 6852{ 6853 struct ctl_lun *lun; 6854 int pc, page_code, dbd, llba, subpage; 6855 int alloc_len, page_len, header_len, total_len; 6856 struct scsi_mode_block_descr *block_desc; 6857 struct ctl_page_index *page_index; 6858 int control_dev; 6859 6860 dbd = 0; 6861 llba = 0; 6862 block_desc = NULL; 6863 page_index = NULL; 6864 6865 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6866 6867 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6868 6869 if (lun->be_lun->lun_type != T_DIRECT) 6870 control_dev = 1; 6871 else 6872 control_dev = 0; 6873 6874 if (lun->flags & CTL_LUN_PR_RESERVED) { 6875 uint32_t residx; 6876 6877 /* 6878 * XXX KDM need a lock here. 6879 */ 6880 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6881 if ((lun->res_type == SPR_TYPE_EX_AC 6882 && residx != lun->pr_res_idx) 6883 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6884 || lun->res_type == SPR_TYPE_EX_AC_AR) 6885 && !lun->per_res[residx].registered)) { 6886 ctl_set_reservation_conflict(ctsio); 6887 ctl_done((union ctl_io *)ctsio); 6888 return (CTL_RETVAL_COMPLETE); 6889 } 6890 } 6891 6892 switch (ctsio->cdb[0]) { 6893 case MODE_SENSE_6: { 6894 struct scsi_mode_sense_6 *cdb; 6895 6896 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6897 6898 header_len = sizeof(struct scsi_mode_hdr_6); 6899 if (cdb->byte2 & SMS_DBD) 6900 dbd = 1; 6901 else 6902 header_len += sizeof(struct scsi_mode_block_descr); 6903 6904 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6905 page_code = cdb->page & SMS_PAGE_CODE; 6906 subpage = cdb->subpage; 6907 alloc_len = cdb->length; 6908 break; 6909 } 6910 case MODE_SENSE_10: { 6911 struct scsi_mode_sense_10 *cdb; 6912 6913 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6914 6915 header_len = sizeof(struct scsi_mode_hdr_10); 6916 6917 if (cdb->byte2 & SMS_DBD) 6918 dbd = 1; 6919 else 6920 header_len += sizeof(struct scsi_mode_block_descr); 6921 if (cdb->byte2 & SMS10_LLBAA) 6922 llba = 1; 6923 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6924 page_code = cdb->page & SMS_PAGE_CODE; 6925 subpage = cdb->subpage; 6926 alloc_len = scsi_2btoul(cdb->length); 6927 break; 6928 } 6929 default: 6930 ctl_set_invalid_opcode(ctsio); 6931 ctl_done((union ctl_io *)ctsio); 6932 return (CTL_RETVAL_COMPLETE); 6933 break; /* NOTREACHED */ 6934 } 6935 6936 /* 6937 * We have to make a first pass through to calculate the size of 6938 * the pages that match the user's query. Then we allocate enough 6939 * memory to hold it, and actually copy the data into the buffer. 6940 */ 6941 switch (page_code) { 6942 case SMS_ALL_PAGES_PAGE: { 6943 int i; 6944 6945 page_len = 0; 6946 6947 /* 6948 * At the moment, values other than 0 and 0xff here are 6949 * reserved according to SPC-3. 6950 */ 6951 if ((subpage != SMS_SUBPAGE_PAGE_0) 6952 && (subpage != SMS_SUBPAGE_ALL)) { 6953 ctl_set_invalid_field(ctsio, 6954 /*sks_valid*/ 1, 6955 /*command*/ 1, 6956 /*field*/ 3, 6957 /*bit_valid*/ 0, 6958 /*bit*/ 0); 6959 ctl_done((union ctl_io *)ctsio); 6960 return (CTL_RETVAL_COMPLETE); 6961 } 6962 6963 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6964 if ((control_dev != 0) 6965 && (lun->mode_pages.index[i].page_flags & 6966 CTL_PAGE_FLAG_DISK_ONLY)) 6967 continue; 6968 6969 /* 6970 * We don't use this subpage if the user didn't 6971 * request all subpages. 6972 */ 6973 if ((lun->mode_pages.index[i].subpage != 0) 6974 && (subpage == SMS_SUBPAGE_PAGE_0)) 6975 continue; 6976 6977#if 0 6978 printf("found page %#x len %d\n", 6979 lun->mode_pages.index[i].page_code & 6980 SMPH_PC_MASK, 6981 lun->mode_pages.index[i].page_len); 6982#endif 6983 page_len += lun->mode_pages.index[i].page_len; 6984 } 6985 break; 6986 } 6987 default: { 6988 int i; 6989 6990 page_len = 0; 6991 6992 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6993 /* Look for the right page code */ 6994 if ((lun->mode_pages.index[i].page_code & 6995 SMPH_PC_MASK) != page_code) 6996 continue; 6997 6998 /* Look for the right subpage or the subpage wildcard*/ 6999 if ((lun->mode_pages.index[i].subpage != subpage) 7000 && (subpage != SMS_SUBPAGE_ALL)) 7001 continue; 7002 7003 /* Make sure the page is supported for this dev type */ 7004 if ((control_dev != 0) 7005 && (lun->mode_pages.index[i].page_flags & 7006 CTL_PAGE_FLAG_DISK_ONLY)) 7007 continue; 7008 7009#if 0 7010 printf("found page %#x len %d\n", 7011 lun->mode_pages.index[i].page_code & 7012 SMPH_PC_MASK, 7013 lun->mode_pages.index[i].page_len); 7014#endif 7015 7016 page_len += lun->mode_pages.index[i].page_len; 7017 } 7018 7019 if (page_len == 0) { 7020 ctl_set_invalid_field(ctsio, 7021 /*sks_valid*/ 1, 7022 /*command*/ 1, 7023 /*field*/ 2, 7024 /*bit_valid*/ 1, 7025 /*bit*/ 5); 7026 ctl_done((union ctl_io *)ctsio); 7027 return (CTL_RETVAL_COMPLETE); 7028 } 7029 break; 7030 } 7031 } 7032 7033 total_len = header_len + page_len; 7034#if 0 7035 printf("header_len = %d, page_len = %d, total_len = %d\n", 7036 header_len, page_len, total_len); 7037#endif 7038 7039 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7040 ctsio->kern_sg_entries = 0; 7041 ctsio->kern_data_resid = 0; 7042 ctsio->kern_rel_offset = 0; 7043 if (total_len < alloc_len) { 7044 ctsio->residual = alloc_len - total_len; 7045 ctsio->kern_data_len = total_len; 7046 ctsio->kern_total_len = total_len; 7047 } else { 7048 ctsio->residual = 0; 7049 ctsio->kern_data_len = alloc_len; 7050 ctsio->kern_total_len = alloc_len; 7051 } 7052 7053 switch (ctsio->cdb[0]) { 7054 case MODE_SENSE_6: { 7055 struct scsi_mode_hdr_6 *header; 7056 7057 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7058 7059 header->datalen = ctl_min(total_len - 1, 254); 7060 if (control_dev == 0) { 7061 header->dev_specific = 0x10; /* DPOFUA */ 7062 if ((lun->flags & CTL_LUN_READONLY) || 7063 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7064 .eca_and_aen & SCP_SWP) != 0) 7065 header->dev_specific |= 0x80; /* WP */ 7066 } 7067 if (dbd) 7068 header->block_descr_len = 0; 7069 else 7070 header->block_descr_len = 7071 sizeof(struct scsi_mode_block_descr); 7072 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7073 break; 7074 } 7075 case MODE_SENSE_10: { 7076 struct scsi_mode_hdr_10 *header; 7077 int datalen; 7078 7079 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7080 7081 datalen = ctl_min(total_len - 2, 65533); 7082 scsi_ulto2b(datalen, header->datalen); 7083 if (control_dev == 0) { 7084 header->dev_specific = 0x10; /* DPOFUA */ 7085 if ((lun->flags & CTL_LUN_READONLY) || 7086 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7087 .eca_and_aen & SCP_SWP) != 0) 7088 header->dev_specific |= 0x80; /* WP */ 7089 } 7090 if (dbd) 7091 scsi_ulto2b(0, header->block_descr_len); 7092 else 7093 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7094 header->block_descr_len); 7095 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7096 break; 7097 } 7098 default: 7099 panic("invalid CDB type %#x", ctsio->cdb[0]); 7100 break; /* NOTREACHED */ 7101 } 7102 7103 /* 7104 * If we've got a disk, use its blocksize in the block 7105 * descriptor. Otherwise, just set it to 0. 7106 */ 7107 if (dbd == 0) { 7108 if (control_dev == 0) 7109 scsi_ulto3b(lun->be_lun->blocksize, 7110 block_desc->block_len); 7111 else 7112 scsi_ulto3b(0, block_desc->block_len); 7113 } 7114 7115 switch (page_code) { 7116 case SMS_ALL_PAGES_PAGE: { 7117 int i, data_used; 7118 7119 data_used = header_len; 7120 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7121 struct ctl_page_index *page_index; 7122 7123 page_index = &lun->mode_pages.index[i]; 7124 7125 if ((control_dev != 0) 7126 && (page_index->page_flags & 7127 CTL_PAGE_FLAG_DISK_ONLY)) 7128 continue; 7129 7130 /* 7131 * We don't use this subpage if the user didn't 7132 * request all subpages. We already checked (above) 7133 * to make sure the user only specified a subpage 7134 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7135 */ 7136 if ((page_index->subpage != 0) 7137 && (subpage == SMS_SUBPAGE_PAGE_0)) 7138 continue; 7139 7140 /* 7141 * Call the handler, if it exists, to update the 7142 * page to the latest values. 7143 */ 7144 if (page_index->sense_handler != NULL) 7145 page_index->sense_handler(ctsio, page_index,pc); 7146 7147 memcpy(ctsio->kern_data_ptr + data_used, 7148 page_index->page_data + 7149 (page_index->page_len * pc), 7150 page_index->page_len); 7151 data_used += page_index->page_len; 7152 } 7153 break; 7154 } 7155 default: { 7156 int i, data_used; 7157 7158 data_used = header_len; 7159 7160 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7161 struct ctl_page_index *page_index; 7162 7163 page_index = &lun->mode_pages.index[i]; 7164 7165 /* Look for the right page code */ 7166 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7167 continue; 7168 7169 /* Look for the right subpage or the subpage wildcard*/ 7170 if ((page_index->subpage != subpage) 7171 && (subpage != SMS_SUBPAGE_ALL)) 7172 continue; 7173 7174 /* Make sure the page is supported for this dev type */ 7175 if ((control_dev != 0) 7176 && (page_index->page_flags & 7177 CTL_PAGE_FLAG_DISK_ONLY)) 7178 continue; 7179 7180 /* 7181 * Call the handler, if it exists, to update the 7182 * page to the latest values. 7183 */ 7184 if (page_index->sense_handler != NULL) 7185 page_index->sense_handler(ctsio, page_index,pc); 7186 7187 memcpy(ctsio->kern_data_ptr + data_used, 7188 page_index->page_data + 7189 (page_index->page_len * pc), 7190 page_index->page_len); 7191 data_used += page_index->page_len; 7192 } 7193 break; 7194 } 7195 } 7196 7197 ctsio->scsi_status = SCSI_STATUS_OK; 7198 7199 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7200 ctsio->be_move_done = ctl_config_move_done; 7201 ctl_datamove((union ctl_io *)ctsio); 7202 7203 return (CTL_RETVAL_COMPLETE); 7204} 7205 7206int 7207ctl_read_capacity(struct ctl_scsiio *ctsio) 7208{ 7209 struct scsi_read_capacity *cdb; 7210 struct scsi_read_capacity_data *data; 7211 struct ctl_lun *lun; 7212 uint32_t lba; 7213 7214 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7215 7216 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7217 7218 lba = scsi_4btoul(cdb->addr); 7219 if (((cdb->pmi & SRC_PMI) == 0) 7220 && (lba != 0)) { 7221 ctl_set_invalid_field(/*ctsio*/ ctsio, 7222 /*sks_valid*/ 1, 7223 /*command*/ 1, 7224 /*field*/ 2, 7225 /*bit_valid*/ 0, 7226 /*bit*/ 0); 7227 ctl_done((union ctl_io *)ctsio); 7228 return (CTL_RETVAL_COMPLETE); 7229 } 7230 7231 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7232 7233 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7234 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7235 ctsio->residual = 0; 7236 ctsio->kern_data_len = sizeof(*data); 7237 ctsio->kern_total_len = sizeof(*data); 7238 ctsio->kern_data_resid = 0; 7239 ctsio->kern_rel_offset = 0; 7240 ctsio->kern_sg_entries = 0; 7241 7242 /* 7243 * If the maximum LBA is greater than 0xfffffffe, the user must 7244 * issue a SERVICE ACTION IN (16) command, with the read capacity 7245 * serivce action set. 7246 */ 7247 if (lun->be_lun->maxlba > 0xfffffffe) 7248 scsi_ulto4b(0xffffffff, data->addr); 7249 else 7250 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7251 7252 /* 7253 * XXX KDM this may not be 512 bytes... 7254 */ 7255 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7256 7257 ctsio->scsi_status = SCSI_STATUS_OK; 7258 7259 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7260 ctsio->be_move_done = ctl_config_move_done; 7261 ctl_datamove((union ctl_io *)ctsio); 7262 7263 return (CTL_RETVAL_COMPLETE); 7264} 7265 7266int 7267ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7268{ 7269 struct scsi_read_capacity_16 *cdb; 7270 struct scsi_read_capacity_data_long *data; 7271 struct ctl_lun *lun; 7272 uint64_t lba; 7273 uint32_t alloc_len; 7274 7275 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7276 7277 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7278 7279 alloc_len = scsi_4btoul(cdb->alloc_len); 7280 lba = scsi_8btou64(cdb->addr); 7281 7282 if ((cdb->reladr & SRC16_PMI) 7283 && (lba != 0)) { 7284 ctl_set_invalid_field(/*ctsio*/ ctsio, 7285 /*sks_valid*/ 1, 7286 /*command*/ 1, 7287 /*field*/ 2, 7288 /*bit_valid*/ 0, 7289 /*bit*/ 0); 7290 ctl_done((union ctl_io *)ctsio); 7291 return (CTL_RETVAL_COMPLETE); 7292 } 7293 7294 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7295 7296 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7297 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7298 7299 if (sizeof(*data) < alloc_len) { 7300 ctsio->residual = alloc_len - sizeof(*data); 7301 ctsio->kern_data_len = sizeof(*data); 7302 ctsio->kern_total_len = sizeof(*data); 7303 } else { 7304 ctsio->residual = 0; 7305 ctsio->kern_data_len = alloc_len; 7306 ctsio->kern_total_len = alloc_len; 7307 } 7308 ctsio->kern_data_resid = 0; 7309 ctsio->kern_rel_offset = 0; 7310 ctsio->kern_sg_entries = 0; 7311 7312 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7313 /* XXX KDM this may not be 512 bytes... */ 7314 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7315 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7316 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7317 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7318 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7319 7320 ctsio->scsi_status = SCSI_STATUS_OK; 7321 7322 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7323 ctsio->be_move_done = ctl_config_move_done; 7324 ctl_datamove((union ctl_io *)ctsio); 7325 7326 return (CTL_RETVAL_COMPLETE); 7327} 7328 7329int 7330ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7331{ 7332 struct scsi_maintenance_in *cdb; 7333 int retval; 7334 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7335 int num_target_port_groups, num_target_ports, single; 7336 struct ctl_lun *lun; 7337 struct ctl_softc *softc; 7338 struct ctl_port *port; 7339 struct scsi_target_group_data *rtg_ptr; 7340 struct scsi_target_group_data_extended *rtg_ext_ptr; 7341 struct scsi_target_port_group_descriptor *tpg_desc; 7342 7343 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7344 7345 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7346 softc = control_softc; 7347 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7348 7349 retval = CTL_RETVAL_COMPLETE; 7350 7351 switch (cdb->byte2 & STG_PDF_MASK) { 7352 case STG_PDF_LENGTH: 7353 ext = 0; 7354 break; 7355 case STG_PDF_EXTENDED: 7356 ext = 1; 7357 break; 7358 default: 7359 ctl_set_invalid_field(/*ctsio*/ ctsio, 7360 /*sks_valid*/ 1, 7361 /*command*/ 1, 7362 /*field*/ 2, 7363 /*bit_valid*/ 1, 7364 /*bit*/ 5); 7365 ctl_done((union ctl_io *)ctsio); 7366 return(retval); 7367 } 7368 7369 single = ctl_is_single; 7370 if (single) 7371 num_target_port_groups = 1; 7372 else 7373 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7374 num_target_ports = 0; 7375 mtx_lock(&softc->ctl_lock); 7376 STAILQ_FOREACH(port, &softc->port_list, links) { 7377 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7378 continue; 7379 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7380 continue; 7381 num_target_ports++; 7382 } 7383 mtx_unlock(&softc->ctl_lock); 7384 7385 if (ext) 7386 total_len = sizeof(struct scsi_target_group_data_extended); 7387 else 7388 total_len = sizeof(struct scsi_target_group_data); 7389 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7390 num_target_port_groups + 7391 sizeof(struct scsi_target_port_descriptor) * 7392 num_target_ports * num_target_port_groups; 7393 7394 alloc_len = scsi_4btoul(cdb->length); 7395 7396 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7397 7398 ctsio->kern_sg_entries = 0; 7399 7400 if (total_len < alloc_len) { 7401 ctsio->residual = alloc_len - total_len; 7402 ctsio->kern_data_len = total_len; 7403 ctsio->kern_total_len = total_len; 7404 } else { 7405 ctsio->residual = 0; 7406 ctsio->kern_data_len = alloc_len; 7407 ctsio->kern_total_len = alloc_len; 7408 } 7409 ctsio->kern_data_resid = 0; 7410 ctsio->kern_rel_offset = 0; 7411 7412 if (ext) { 7413 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7414 ctsio->kern_data_ptr; 7415 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7416 rtg_ext_ptr->format_type = 0x10; 7417 rtg_ext_ptr->implicit_transition_time = 0; 7418 tpg_desc = &rtg_ext_ptr->groups[0]; 7419 } else { 7420 rtg_ptr = (struct scsi_target_group_data *) 7421 ctsio->kern_data_ptr; 7422 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7423 tpg_desc = &rtg_ptr->groups[0]; 7424 } 7425 7426 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7427 mtx_lock(&softc->ctl_lock); 7428 for (g = 0; g < num_target_port_groups; g++) { 7429 if (g == pg) 7430 tpg_desc->pref_state = TPG_PRIMARY | 7431 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7432 else 7433 tpg_desc->pref_state = 7434 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7435 tpg_desc->support = TPG_AO_SUP; 7436 if (!single) 7437 tpg_desc->support |= TPG_AN_SUP; 7438 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7439 tpg_desc->status = TPG_IMPLICIT; 7440 pc = 0; 7441 STAILQ_FOREACH(port, &softc->port_list, links) { 7442 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7443 continue; 7444 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7445 CTL_MAX_LUNS) 7446 continue; 7447 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7448 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7449 relative_target_port_identifier); 7450 pc++; 7451 } 7452 tpg_desc->target_port_count = pc; 7453 tpg_desc = (struct scsi_target_port_group_descriptor *) 7454 &tpg_desc->descriptors[pc]; 7455 } 7456 mtx_unlock(&softc->ctl_lock); 7457 7458 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7459 ctsio->be_move_done = ctl_config_move_done; 7460 7461 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7462 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7463 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7464 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7465 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7466 7467 ctl_datamove((union ctl_io *)ctsio); 7468 return(retval); 7469} 7470 7471int 7472ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7473{ 7474 struct ctl_lun *lun; 7475 struct scsi_report_supported_opcodes *cdb; 7476 const struct ctl_cmd_entry *entry, *sentry; 7477 struct scsi_report_supported_opcodes_all *all; 7478 struct scsi_report_supported_opcodes_descr *descr; 7479 struct scsi_report_supported_opcodes_one *one; 7480 int retval; 7481 int alloc_len, total_len; 7482 int opcode, service_action, i, j, num; 7483 7484 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7485 7486 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7487 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7488 7489 retval = CTL_RETVAL_COMPLETE; 7490 7491 opcode = cdb->requested_opcode; 7492 service_action = scsi_2btoul(cdb->requested_service_action); 7493 switch (cdb->options & RSO_OPTIONS_MASK) { 7494 case RSO_OPTIONS_ALL: 7495 num = 0; 7496 for (i = 0; i < 256; i++) { 7497 entry = &ctl_cmd_table[i]; 7498 if (entry->flags & CTL_CMD_FLAG_SA5) { 7499 for (j = 0; j < 32; j++) { 7500 sentry = &((const struct ctl_cmd_entry *) 7501 entry->execute)[j]; 7502 if (ctl_cmd_applicable( 7503 lun->be_lun->lun_type, sentry)) 7504 num++; 7505 } 7506 } else { 7507 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7508 entry)) 7509 num++; 7510 } 7511 } 7512 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7513 num * sizeof(struct scsi_report_supported_opcodes_descr); 7514 break; 7515 case RSO_OPTIONS_OC: 7516 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7517 ctl_set_invalid_field(/*ctsio*/ ctsio, 7518 /*sks_valid*/ 1, 7519 /*command*/ 1, 7520 /*field*/ 2, 7521 /*bit_valid*/ 1, 7522 /*bit*/ 2); 7523 ctl_done((union ctl_io *)ctsio); 7524 return (CTL_RETVAL_COMPLETE); 7525 } 7526 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7527 break; 7528 case RSO_OPTIONS_OC_SA: 7529 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7530 service_action >= 32) { 7531 ctl_set_invalid_field(/*ctsio*/ ctsio, 7532 /*sks_valid*/ 1, 7533 /*command*/ 1, 7534 /*field*/ 2, 7535 /*bit_valid*/ 1, 7536 /*bit*/ 2); 7537 ctl_done((union ctl_io *)ctsio); 7538 return (CTL_RETVAL_COMPLETE); 7539 } 7540 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7541 break; 7542 default: 7543 ctl_set_invalid_field(/*ctsio*/ ctsio, 7544 /*sks_valid*/ 1, 7545 /*command*/ 1, 7546 /*field*/ 2, 7547 /*bit_valid*/ 1, 7548 /*bit*/ 2); 7549 ctl_done((union ctl_io *)ctsio); 7550 return (CTL_RETVAL_COMPLETE); 7551 } 7552 7553 alloc_len = scsi_4btoul(cdb->length); 7554 7555 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7556 7557 ctsio->kern_sg_entries = 0; 7558 7559 if (total_len < alloc_len) { 7560 ctsio->residual = alloc_len - total_len; 7561 ctsio->kern_data_len = total_len; 7562 ctsio->kern_total_len = total_len; 7563 } else { 7564 ctsio->residual = 0; 7565 ctsio->kern_data_len = alloc_len; 7566 ctsio->kern_total_len = alloc_len; 7567 } 7568 ctsio->kern_data_resid = 0; 7569 ctsio->kern_rel_offset = 0; 7570 7571 switch (cdb->options & RSO_OPTIONS_MASK) { 7572 case RSO_OPTIONS_ALL: 7573 all = (struct scsi_report_supported_opcodes_all *) 7574 ctsio->kern_data_ptr; 7575 num = 0; 7576 for (i = 0; i < 256; i++) { 7577 entry = &ctl_cmd_table[i]; 7578 if (entry->flags & CTL_CMD_FLAG_SA5) { 7579 for (j = 0; j < 32; j++) { 7580 sentry = &((const struct ctl_cmd_entry *) 7581 entry->execute)[j]; 7582 if (!ctl_cmd_applicable( 7583 lun->be_lun->lun_type, sentry)) 7584 continue; 7585 descr = &all->descr[num++]; 7586 descr->opcode = i; 7587 scsi_ulto2b(j, descr->service_action); 7588 descr->flags = RSO_SERVACTV; 7589 scsi_ulto2b(sentry->length, 7590 descr->cdb_length); 7591 } 7592 } else { 7593 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7594 entry)) 7595 continue; 7596 descr = &all->descr[num++]; 7597 descr->opcode = i; 7598 scsi_ulto2b(0, descr->service_action); 7599 descr->flags = 0; 7600 scsi_ulto2b(entry->length, descr->cdb_length); 7601 } 7602 } 7603 scsi_ulto4b( 7604 num * sizeof(struct scsi_report_supported_opcodes_descr), 7605 all->length); 7606 break; 7607 case RSO_OPTIONS_OC: 7608 one = (struct scsi_report_supported_opcodes_one *) 7609 ctsio->kern_data_ptr; 7610 entry = &ctl_cmd_table[opcode]; 7611 goto fill_one; 7612 case RSO_OPTIONS_OC_SA: 7613 one = (struct scsi_report_supported_opcodes_one *) 7614 ctsio->kern_data_ptr; 7615 entry = &ctl_cmd_table[opcode]; 7616 entry = &((const struct ctl_cmd_entry *) 7617 entry->execute)[service_action]; 7618fill_one: 7619 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7620 one->support = 3; 7621 scsi_ulto2b(entry->length, one->cdb_length); 7622 one->cdb_usage[0] = opcode; 7623 memcpy(&one->cdb_usage[1], entry->usage, 7624 entry->length - 1); 7625 } else 7626 one->support = 1; 7627 break; 7628 } 7629 7630 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7631 ctsio->be_move_done = ctl_config_move_done; 7632 7633 ctl_datamove((union ctl_io *)ctsio); 7634 return(retval); 7635} 7636 7637int 7638ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7639{ 7640 struct ctl_lun *lun; 7641 struct scsi_report_supported_tmf *cdb; 7642 struct scsi_report_supported_tmf_data *data; 7643 int retval; 7644 int alloc_len, total_len; 7645 7646 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7647 7648 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7649 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7650 7651 retval = CTL_RETVAL_COMPLETE; 7652 7653 total_len = sizeof(struct scsi_report_supported_tmf_data); 7654 alloc_len = scsi_4btoul(cdb->length); 7655 7656 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7657 7658 ctsio->kern_sg_entries = 0; 7659 7660 if (total_len < alloc_len) { 7661 ctsio->residual = alloc_len - total_len; 7662 ctsio->kern_data_len = total_len; 7663 ctsio->kern_total_len = total_len; 7664 } else { 7665 ctsio->residual = 0; 7666 ctsio->kern_data_len = alloc_len; 7667 ctsio->kern_total_len = alloc_len; 7668 } 7669 ctsio->kern_data_resid = 0; 7670 ctsio->kern_rel_offset = 0; 7671 7672 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7673 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7674 data->byte2 |= RST_ITNRS; 7675 7676 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7677 ctsio->be_move_done = ctl_config_move_done; 7678 7679 ctl_datamove((union ctl_io *)ctsio); 7680 return (retval); 7681} 7682 7683int 7684ctl_report_timestamp(struct ctl_scsiio *ctsio) 7685{ 7686 struct ctl_lun *lun; 7687 struct scsi_report_timestamp *cdb; 7688 struct scsi_report_timestamp_data *data; 7689 struct timeval tv; 7690 int64_t timestamp; 7691 int retval; 7692 int alloc_len, total_len; 7693 7694 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7695 7696 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7697 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7698 7699 retval = CTL_RETVAL_COMPLETE; 7700 7701 total_len = sizeof(struct scsi_report_timestamp_data); 7702 alloc_len = scsi_4btoul(cdb->length); 7703 7704 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7705 7706 ctsio->kern_sg_entries = 0; 7707 7708 if (total_len < alloc_len) { 7709 ctsio->residual = alloc_len - total_len; 7710 ctsio->kern_data_len = total_len; 7711 ctsio->kern_total_len = total_len; 7712 } else { 7713 ctsio->residual = 0; 7714 ctsio->kern_data_len = alloc_len; 7715 ctsio->kern_total_len = alloc_len; 7716 } 7717 ctsio->kern_data_resid = 0; 7718 ctsio->kern_rel_offset = 0; 7719 7720 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7721 scsi_ulto2b(sizeof(*data) - 2, data->length); 7722 data->origin = RTS_ORIG_OUTSIDE; 7723 getmicrotime(&tv); 7724 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7725 scsi_ulto4b(timestamp >> 16, data->timestamp); 7726 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7727 7728 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7729 ctsio->be_move_done = ctl_config_move_done; 7730 7731 ctl_datamove((union ctl_io *)ctsio); 7732 return (retval); 7733} 7734 7735int 7736ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7737{ 7738 struct scsi_per_res_in *cdb; 7739 int alloc_len, total_len = 0; 7740 /* struct scsi_per_res_in_rsrv in_data; */ 7741 struct ctl_lun *lun; 7742 struct ctl_softc *softc; 7743 7744 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7745 7746 softc = control_softc; 7747 7748 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7749 7750 alloc_len = scsi_2btoul(cdb->length); 7751 7752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7753 7754retry: 7755 mtx_lock(&lun->lun_lock); 7756 switch (cdb->action) { 7757 case SPRI_RK: /* read keys */ 7758 total_len = sizeof(struct scsi_per_res_in_keys) + 7759 lun->pr_key_count * 7760 sizeof(struct scsi_per_res_key); 7761 break; 7762 case SPRI_RR: /* read reservation */ 7763 if (lun->flags & CTL_LUN_PR_RESERVED) 7764 total_len = sizeof(struct scsi_per_res_in_rsrv); 7765 else 7766 total_len = sizeof(struct scsi_per_res_in_header); 7767 break; 7768 case SPRI_RC: /* report capabilities */ 7769 total_len = sizeof(struct scsi_per_res_cap); 7770 break; 7771 case SPRI_RS: /* read full status */ 7772 total_len = sizeof(struct scsi_per_res_in_header) + 7773 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7774 lun->pr_key_count; 7775 break; 7776 default: 7777 panic("Invalid PR type %x", cdb->action); 7778 } 7779 mtx_unlock(&lun->lun_lock); 7780 7781 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7782 7783 if (total_len < alloc_len) { 7784 ctsio->residual = alloc_len - total_len; 7785 ctsio->kern_data_len = total_len; 7786 ctsio->kern_total_len = total_len; 7787 } else { 7788 ctsio->residual = 0; 7789 ctsio->kern_data_len = alloc_len; 7790 ctsio->kern_total_len = alloc_len; 7791 } 7792 7793 ctsio->kern_data_resid = 0; 7794 ctsio->kern_rel_offset = 0; 7795 ctsio->kern_sg_entries = 0; 7796 7797 mtx_lock(&lun->lun_lock); 7798 switch (cdb->action) { 7799 case SPRI_RK: { // read keys 7800 struct scsi_per_res_in_keys *res_keys; 7801 int i, key_count; 7802 7803 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7804 7805 /* 7806 * We had to drop the lock to allocate our buffer, which 7807 * leaves time for someone to come in with another 7808 * persistent reservation. (That is unlikely, though, 7809 * since this should be the only persistent reservation 7810 * command active right now.) 7811 */ 7812 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7813 (lun->pr_key_count * 7814 sizeof(struct scsi_per_res_key)))){ 7815 mtx_unlock(&lun->lun_lock); 7816 free(ctsio->kern_data_ptr, M_CTL); 7817 printf("%s: reservation length changed, retrying\n", 7818 __func__); 7819 goto retry; 7820 } 7821 7822 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7823 7824 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7825 lun->pr_key_count, res_keys->header.length); 7826 7827 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7828 if (!lun->per_res[i].registered) 7829 continue; 7830 7831 /* 7832 * We used lun->pr_key_count to calculate the 7833 * size to allocate. If it turns out the number of 7834 * initiators with the registered flag set is 7835 * larger than that (i.e. they haven't been kept in 7836 * sync), we've got a problem. 7837 */ 7838 if (key_count >= lun->pr_key_count) { 7839#ifdef NEEDTOPORT 7840 csevent_log(CSC_CTL | CSC_SHELF_SW | 7841 CTL_PR_ERROR, 7842 csevent_LogType_Fault, 7843 csevent_AlertLevel_Yellow, 7844 csevent_FRU_ShelfController, 7845 csevent_FRU_Firmware, 7846 csevent_FRU_Unknown, 7847 "registered keys %d >= key " 7848 "count %d", key_count, 7849 lun->pr_key_count); 7850#endif 7851 key_count++; 7852 continue; 7853 } 7854 memcpy(res_keys->keys[key_count].key, 7855 lun->per_res[i].res_key.key, 7856 ctl_min(sizeof(res_keys->keys[key_count].key), 7857 sizeof(lun->per_res[i].res_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 memcpy(res->data.reservation, 7909 &lun->per_res[lun->pr_res_idx].res_key, 7910 sizeof(struct scsi_per_res_key)); 7911 } 7912 res->data.scopetype = lun->res_type; 7913 break; 7914 } 7915 case SPRI_RC: //report capabilities 7916 { 7917 struct scsi_per_res_cap *res_cap; 7918 uint16_t type_mask; 7919 7920 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7921 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7922 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7923 type_mask = SPRI_TM_WR_EX_AR | 7924 SPRI_TM_EX_AC_RO | 7925 SPRI_TM_WR_EX_RO | 7926 SPRI_TM_EX_AC | 7927 SPRI_TM_WR_EX | 7928 SPRI_TM_EX_AC_AR; 7929 scsi_ulto2b(type_mask, res_cap->type_mask); 7930 break; 7931 } 7932 case SPRI_RS: { // read full status 7933 struct scsi_per_res_in_full *res_status; 7934 struct scsi_per_res_in_full_desc *res_desc; 7935 struct ctl_port *port; 7936 int i, len; 7937 7938 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7939 7940 /* 7941 * We had to drop the lock to allocate our buffer, which 7942 * leaves time for someone to come in with another 7943 * persistent reservation. (That is unlikely, though, 7944 * since this should be the only persistent reservation 7945 * command active right now.) 7946 */ 7947 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7948 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7949 lun->pr_key_count)){ 7950 mtx_unlock(&lun->lun_lock); 7951 free(ctsio->kern_data_ptr, M_CTL); 7952 printf("%s: reservation length changed, retrying\n", 7953 __func__); 7954 goto retry; 7955 } 7956 7957 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7958 7959 res_desc = &res_status->desc[0]; 7960 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7961 if (!lun->per_res[i].registered) 7962 continue; 7963 7964 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7965 sizeof(res_desc->res_key)); 7966 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7967 (lun->pr_res_idx == i || 7968 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7969 res_desc->flags = SPRI_FULL_R_HOLDER; 7970 res_desc->scopetype = lun->res_type; 7971 } 7972 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7973 res_desc->rel_trgt_port_id); 7974 len = 0; 7975 port = softc->ctl_ports[ 7976 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7977 if (port != NULL) 7978 len = ctl_create_iid(port, 7979 i % CTL_MAX_INIT_PER_PORT, 7980 res_desc->transport_id); 7981 scsi_ulto4b(len, res_desc->additional_length); 7982 res_desc = (struct scsi_per_res_in_full_desc *) 7983 &res_desc->transport_id[len]; 7984 } 7985 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7986 res_status->header.length); 7987 break; 7988 } 7989 default: 7990 /* 7991 * This is a bug, because we just checked for this above, 7992 * and should have returned an error. 7993 */ 7994 panic("Invalid PR type %x", cdb->action); 7995 break; /* NOTREACHED */ 7996 } 7997 mtx_unlock(&lun->lun_lock); 7998 7999 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8000 ctsio->be_move_done = ctl_config_move_done; 8001 8002 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8003 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8004 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8005 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8006 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8007 8008 ctl_datamove((union ctl_io *)ctsio); 8009 8010 return (CTL_RETVAL_COMPLETE); 8011} 8012 8013/* 8014 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8015 * it should return. 8016 */ 8017static int 8018ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8019 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8020 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8021 struct scsi_per_res_out_parms* param) 8022{ 8023 union ctl_ha_msg persis_io; 8024 int retval, i; 8025 int isc_retval; 8026 8027 retval = 0; 8028 8029 mtx_lock(&lun->lun_lock); 8030 if (sa_res_key == 0) { 8031 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8032 /* validate scope and type */ 8033 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8034 SPR_LU_SCOPE) { 8035 mtx_unlock(&lun->lun_lock); 8036 ctl_set_invalid_field(/*ctsio*/ ctsio, 8037 /*sks_valid*/ 1, 8038 /*command*/ 1, 8039 /*field*/ 2, 8040 /*bit_valid*/ 1, 8041 /*bit*/ 4); 8042 ctl_done((union ctl_io *)ctsio); 8043 return (1); 8044 } 8045 8046 if (type>8 || type==2 || type==4 || type==0) { 8047 mtx_unlock(&lun->lun_lock); 8048 ctl_set_invalid_field(/*ctsio*/ ctsio, 8049 /*sks_valid*/ 1, 8050 /*command*/ 1, 8051 /*field*/ 2, 8052 /*bit_valid*/ 1, 8053 /*bit*/ 0); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 8058 /* temporarily unregister this nexus */ 8059 lun->per_res[residx].registered = 0; 8060 8061 /* 8062 * Unregister everybody else and build UA for 8063 * them 8064 */ 8065 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8066 if (lun->per_res[i].registered == 0) 8067 continue; 8068 8069 if (!persis_offset 8070 && i <CTL_MAX_INITIATORS) 8071 lun->pending_ua[i] |= 8072 CTL_UA_REG_PREEMPT; 8073 else if (persis_offset 8074 && i >= persis_offset) 8075 lun->pending_ua[i-persis_offset] |= 8076 CTL_UA_REG_PREEMPT; 8077 lun->per_res[i].registered = 0; 8078 memset(&lun->per_res[i].res_key, 0, 8079 sizeof(struct scsi_per_res_key)); 8080 } 8081 lun->per_res[residx].registered = 1; 8082 lun->pr_key_count = 1; 8083 lun->res_type = type; 8084 if (lun->res_type != SPR_TYPE_WR_EX_AR 8085 && lun->res_type != SPR_TYPE_EX_AC_AR) 8086 lun->pr_res_idx = residx; 8087 8088 /* send msg to other side */ 8089 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8090 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8091 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8092 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8093 persis_io.pr.pr_info.res_type = type; 8094 memcpy(persis_io.pr.pr_info.sa_res_key, 8095 param->serv_act_res_key, 8096 sizeof(param->serv_act_res_key)); 8097 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8098 &persis_io, sizeof(persis_io), 0)) > 8099 CTL_HA_STATUS_SUCCESS) { 8100 printf("CTL:Persis Out error returned " 8101 "from ctl_ha_msg_send %d\n", 8102 isc_retval); 8103 } 8104 } else { 8105 /* not all registrants */ 8106 mtx_unlock(&lun->lun_lock); 8107 free(ctsio->kern_data_ptr, M_CTL); 8108 ctl_set_invalid_field(ctsio, 8109 /*sks_valid*/ 1, 8110 /*command*/ 0, 8111 /*field*/ 8, 8112 /*bit_valid*/ 0, 8113 /*bit*/ 0); 8114 ctl_done((union ctl_io *)ctsio); 8115 return (1); 8116 } 8117 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8118 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8119 int found = 0; 8120 8121 if (res_key == sa_res_key) { 8122 /* special case */ 8123 /* 8124 * The spec implies this is not good but doesn't 8125 * say what to do. There are two choices either 8126 * generate a res conflict or check condition 8127 * with illegal field in parameter data. Since 8128 * that is what is done when the sa_res_key is 8129 * zero I'll take that approach since this has 8130 * to do with the sa_res_key. 8131 */ 8132 mtx_unlock(&lun->lun_lock); 8133 free(ctsio->kern_data_ptr, M_CTL); 8134 ctl_set_invalid_field(ctsio, 8135 /*sks_valid*/ 1, 8136 /*command*/ 0, 8137 /*field*/ 8, 8138 /*bit_valid*/ 0, 8139 /*bit*/ 0); 8140 ctl_done((union ctl_io *)ctsio); 8141 return (1); 8142 } 8143 8144 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8145 if (lun->per_res[i].registered 8146 && memcmp(param->serv_act_res_key, 8147 lun->per_res[i].res_key.key, 8148 sizeof(struct scsi_per_res_key)) != 0) 8149 continue; 8150 8151 found = 1; 8152 lun->per_res[i].registered = 0; 8153 memset(&lun->per_res[i].res_key, 0, 8154 sizeof(struct scsi_per_res_key)); 8155 lun->pr_key_count--; 8156 8157 if (!persis_offset && i < CTL_MAX_INITIATORS) 8158 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8159 else if (persis_offset && i >= persis_offset) 8160 lun->pending_ua[i-persis_offset] |= 8161 CTL_UA_REG_PREEMPT; 8162 } 8163 if (!found) { 8164 mtx_unlock(&lun->lun_lock); 8165 free(ctsio->kern_data_ptr, M_CTL); 8166 ctl_set_reservation_conflict(ctsio); 8167 ctl_done((union ctl_io *)ctsio); 8168 return (CTL_RETVAL_COMPLETE); 8169 } 8170 /* send msg to other side */ 8171 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8172 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8173 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8174 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8175 persis_io.pr.pr_info.res_type = type; 8176 memcpy(persis_io.pr.pr_info.sa_res_key, 8177 param->serv_act_res_key, 8178 sizeof(param->serv_act_res_key)); 8179 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8180 &persis_io, sizeof(persis_io), 0)) > 8181 CTL_HA_STATUS_SUCCESS) { 8182 printf("CTL:Persis Out error returned from " 8183 "ctl_ha_msg_send %d\n", isc_retval); 8184 } 8185 } else { 8186 /* Reserved but not all registrants */ 8187 /* sa_res_key is res holder */ 8188 if (memcmp(param->serv_act_res_key, 8189 lun->per_res[lun->pr_res_idx].res_key.key, 8190 sizeof(struct scsi_per_res_key)) == 0) { 8191 /* validate scope and type */ 8192 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8193 SPR_LU_SCOPE) { 8194 mtx_unlock(&lun->lun_lock); 8195 ctl_set_invalid_field(/*ctsio*/ ctsio, 8196 /*sks_valid*/ 1, 8197 /*command*/ 1, 8198 /*field*/ 2, 8199 /*bit_valid*/ 1, 8200 /*bit*/ 4); 8201 ctl_done((union ctl_io *)ctsio); 8202 return (1); 8203 } 8204 8205 if (type>8 || type==2 || type==4 || type==0) { 8206 mtx_unlock(&lun->lun_lock); 8207 ctl_set_invalid_field(/*ctsio*/ ctsio, 8208 /*sks_valid*/ 1, 8209 /*command*/ 1, 8210 /*field*/ 2, 8211 /*bit_valid*/ 1, 8212 /*bit*/ 0); 8213 ctl_done((union ctl_io *)ctsio); 8214 return (1); 8215 } 8216 8217 /* 8218 * Do the following: 8219 * if sa_res_key != res_key remove all 8220 * registrants w/sa_res_key and generate UA 8221 * for these registrants(Registrations 8222 * Preempted) if it wasn't an exclusive 8223 * reservation generate UA(Reservations 8224 * Preempted) for all other registered nexuses 8225 * if the type has changed. Establish the new 8226 * reservation and holder. If res_key and 8227 * sa_res_key are the same do the above 8228 * except don't unregister the res holder. 8229 */ 8230 8231 /* 8232 * Temporarily unregister so it won't get 8233 * removed or UA generated 8234 */ 8235 lun->per_res[residx].registered = 0; 8236 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8237 if (lun->per_res[i].registered == 0) 8238 continue; 8239 8240 if (memcmp(param->serv_act_res_key, 8241 lun->per_res[i].res_key.key, 8242 sizeof(struct scsi_per_res_key)) == 0) { 8243 lun->per_res[i].registered = 0; 8244 memset(&lun->per_res[i].res_key, 8245 0, 8246 sizeof(struct scsi_per_res_key)); 8247 lun->pr_key_count--; 8248 8249 if (!persis_offset 8250 && i < CTL_MAX_INITIATORS) 8251 lun->pending_ua[i] |= 8252 CTL_UA_REG_PREEMPT; 8253 else if (persis_offset 8254 && i >= persis_offset) 8255 lun->pending_ua[i-persis_offset] |= 8256 CTL_UA_REG_PREEMPT; 8257 } else if (type != lun->res_type 8258 && (lun->res_type == SPR_TYPE_WR_EX_RO 8259 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8260 if (!persis_offset 8261 && i < CTL_MAX_INITIATORS) 8262 lun->pending_ua[i] |= 8263 CTL_UA_RES_RELEASE; 8264 else if (persis_offset 8265 && i >= persis_offset) 8266 lun->pending_ua[ 8267 i-persis_offset] |= 8268 CTL_UA_RES_RELEASE; 8269 } 8270 } 8271 lun->per_res[residx].registered = 1; 8272 lun->res_type = type; 8273 if (lun->res_type != SPR_TYPE_WR_EX_AR 8274 && lun->res_type != SPR_TYPE_EX_AC_AR) 8275 lun->pr_res_idx = residx; 8276 else 8277 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8278 8279 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8280 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8281 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8282 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8283 persis_io.pr.pr_info.res_type = type; 8284 memcpy(persis_io.pr.pr_info.sa_res_key, 8285 param->serv_act_res_key, 8286 sizeof(param->serv_act_res_key)); 8287 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8288 &persis_io, sizeof(persis_io), 0)) > 8289 CTL_HA_STATUS_SUCCESS) { 8290 printf("CTL:Persis Out error returned " 8291 "from ctl_ha_msg_send %d\n", 8292 isc_retval); 8293 } 8294 } else { 8295 /* 8296 * sa_res_key is not the res holder just 8297 * remove registrants 8298 */ 8299 int found=0; 8300 8301 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8302 if (memcmp(param->serv_act_res_key, 8303 lun->per_res[i].res_key.key, 8304 sizeof(struct scsi_per_res_key)) != 0) 8305 continue; 8306 8307 found = 1; 8308 lun->per_res[i].registered = 0; 8309 memset(&lun->per_res[i].res_key, 0, 8310 sizeof(struct scsi_per_res_key)); 8311 lun->pr_key_count--; 8312 8313 if (!persis_offset 8314 && i < CTL_MAX_INITIATORS) 8315 lun->pending_ua[i] |= 8316 CTL_UA_REG_PREEMPT; 8317 else if (persis_offset 8318 && i >= persis_offset) 8319 lun->pending_ua[i-persis_offset] |= 8320 CTL_UA_REG_PREEMPT; 8321 } 8322 8323 if (!found) { 8324 mtx_unlock(&lun->lun_lock); 8325 free(ctsio->kern_data_ptr, M_CTL); 8326 ctl_set_reservation_conflict(ctsio); 8327 ctl_done((union ctl_io *)ctsio); 8328 return (1); 8329 } 8330 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8331 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8332 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8333 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8334 persis_io.pr.pr_info.res_type = type; 8335 memcpy(persis_io.pr.pr_info.sa_res_key, 8336 param->serv_act_res_key, 8337 sizeof(param->serv_act_res_key)); 8338 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8339 &persis_io, sizeof(persis_io), 0)) > 8340 CTL_HA_STATUS_SUCCESS) { 8341 printf("CTL:Persis Out error returned " 8342 "from ctl_ha_msg_send %d\n", 8343 isc_retval); 8344 } 8345 } 8346 } 8347 8348 lun->PRGeneration++; 8349 mtx_unlock(&lun->lun_lock); 8350 8351 return (retval); 8352} 8353 8354static void 8355ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8356{ 8357 int i; 8358 8359 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8360 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8361 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8362 msg->pr.pr_info.sa_res_key, 8363 sizeof(struct scsi_per_res_key)) != 0) { 8364 uint64_t sa_res_key; 8365 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8366 8367 if (sa_res_key == 0) { 8368 /* temporarily unregister this nexus */ 8369 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8370 8371 /* 8372 * Unregister everybody else and build UA for 8373 * them 8374 */ 8375 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8376 if (lun->per_res[i].registered == 0) 8377 continue; 8378 8379 if (!persis_offset 8380 && i < CTL_MAX_INITIATORS) 8381 lun->pending_ua[i] |= 8382 CTL_UA_REG_PREEMPT; 8383 else if (persis_offset && i >= persis_offset) 8384 lun->pending_ua[i - persis_offset] |= 8385 CTL_UA_REG_PREEMPT; 8386 lun->per_res[i].registered = 0; 8387 memset(&lun->per_res[i].res_key, 0, 8388 sizeof(struct scsi_per_res_key)); 8389 } 8390 8391 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8392 lun->pr_key_count = 1; 8393 lun->res_type = msg->pr.pr_info.res_type; 8394 if (lun->res_type != SPR_TYPE_WR_EX_AR 8395 && lun->res_type != SPR_TYPE_EX_AC_AR) 8396 lun->pr_res_idx = msg->pr.pr_info.residx; 8397 } else { 8398 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8399 if (memcmp(msg->pr.pr_info.sa_res_key, 8400 lun->per_res[i].res_key.key, 8401 sizeof(struct scsi_per_res_key)) != 0) 8402 continue; 8403 8404 lun->per_res[i].registered = 0; 8405 memset(&lun->per_res[i].res_key, 0, 8406 sizeof(struct scsi_per_res_key)); 8407 lun->pr_key_count--; 8408 8409 if (!persis_offset 8410 && i < persis_offset) 8411 lun->pending_ua[i] |= 8412 CTL_UA_REG_PREEMPT; 8413 else if (persis_offset 8414 && i >= persis_offset) 8415 lun->pending_ua[i - persis_offset] |= 8416 CTL_UA_REG_PREEMPT; 8417 } 8418 } 8419 } else { 8420 /* 8421 * Temporarily unregister so it won't get removed 8422 * or UA generated 8423 */ 8424 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8425 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8426 if (lun->per_res[i].registered == 0) 8427 continue; 8428 8429 if (memcmp(msg->pr.pr_info.sa_res_key, 8430 lun->per_res[i].res_key.key, 8431 sizeof(struct scsi_per_res_key)) == 0) { 8432 lun->per_res[i].registered = 0; 8433 memset(&lun->per_res[i].res_key, 0, 8434 sizeof(struct scsi_per_res_key)); 8435 lun->pr_key_count--; 8436 if (!persis_offset 8437 && i < CTL_MAX_INITIATORS) 8438 lun->pending_ua[i] |= 8439 CTL_UA_REG_PREEMPT; 8440 else if (persis_offset 8441 && i >= persis_offset) 8442 lun->pending_ua[i - persis_offset] |= 8443 CTL_UA_REG_PREEMPT; 8444 } else if (msg->pr.pr_info.res_type != lun->res_type 8445 && (lun->res_type == SPR_TYPE_WR_EX_RO 8446 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8447 if (!persis_offset 8448 && i < persis_offset) 8449 lun->pending_ua[i] |= 8450 CTL_UA_RES_RELEASE; 8451 else if (persis_offset 8452 && i >= persis_offset) 8453 lun->pending_ua[i - persis_offset] |= 8454 CTL_UA_RES_RELEASE; 8455 } 8456 } 8457 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8458 lun->res_type = msg->pr.pr_info.res_type; 8459 if (lun->res_type != SPR_TYPE_WR_EX_AR 8460 && lun->res_type != SPR_TYPE_EX_AC_AR) 8461 lun->pr_res_idx = msg->pr.pr_info.residx; 8462 else 8463 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8464 } 8465 lun->PRGeneration++; 8466 8467} 8468 8469 8470int 8471ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8472{ 8473 int retval; 8474 int isc_retval; 8475 u_int32_t param_len; 8476 struct scsi_per_res_out *cdb; 8477 struct ctl_lun *lun; 8478 struct scsi_per_res_out_parms* param; 8479 struct ctl_softc *softc; 8480 uint32_t residx; 8481 uint64_t res_key, sa_res_key; 8482 uint8_t type; 8483 union ctl_ha_msg persis_io; 8484 int i; 8485 8486 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8487 8488 retval = CTL_RETVAL_COMPLETE; 8489 8490 softc = control_softc; 8491 8492 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8493 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8494 8495 /* 8496 * We only support whole-LUN scope. The scope & type are ignored for 8497 * register, register and ignore existing key and clear. 8498 * We sometimes ignore scope and type on preempts too!! 8499 * Verify reservation type here as well. 8500 */ 8501 type = cdb->scope_type & SPR_TYPE_MASK; 8502 if ((cdb->action == SPRO_RESERVE) 8503 || (cdb->action == SPRO_RELEASE)) { 8504 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8505 ctl_set_invalid_field(/*ctsio*/ ctsio, 8506 /*sks_valid*/ 1, 8507 /*command*/ 1, 8508 /*field*/ 2, 8509 /*bit_valid*/ 1, 8510 /*bit*/ 4); 8511 ctl_done((union ctl_io *)ctsio); 8512 return (CTL_RETVAL_COMPLETE); 8513 } 8514 8515 if (type>8 || type==2 || type==4 || type==0) { 8516 ctl_set_invalid_field(/*ctsio*/ ctsio, 8517 /*sks_valid*/ 1, 8518 /*command*/ 1, 8519 /*field*/ 2, 8520 /*bit_valid*/ 1, 8521 /*bit*/ 0); 8522 ctl_done((union ctl_io *)ctsio); 8523 return (CTL_RETVAL_COMPLETE); 8524 } 8525 } 8526 8527 param_len = scsi_4btoul(cdb->length); 8528 8529 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8530 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8531 ctsio->kern_data_len = param_len; 8532 ctsio->kern_total_len = param_len; 8533 ctsio->kern_data_resid = 0; 8534 ctsio->kern_rel_offset = 0; 8535 ctsio->kern_sg_entries = 0; 8536 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8537 ctsio->be_move_done = ctl_config_move_done; 8538 ctl_datamove((union ctl_io *)ctsio); 8539 8540 return (CTL_RETVAL_COMPLETE); 8541 } 8542 8543 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8544 8545 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8546 res_key = scsi_8btou64(param->res_key.key); 8547 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8548 8549 /* 8550 * Validate the reservation key here except for SPRO_REG_IGNO 8551 * This must be done for all other service actions 8552 */ 8553 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8554 mtx_lock(&lun->lun_lock); 8555 if (lun->per_res[residx].registered) { 8556 if (memcmp(param->res_key.key, 8557 lun->per_res[residx].res_key.key, 8558 ctl_min(sizeof(param->res_key), 8559 sizeof(lun->per_res[residx].res_key))) != 0) { 8560 /* 8561 * The current key passed in doesn't match 8562 * the one the initiator previously 8563 * registered. 8564 */ 8565 mtx_unlock(&lun->lun_lock); 8566 free(ctsio->kern_data_ptr, M_CTL); 8567 ctl_set_reservation_conflict(ctsio); 8568 ctl_done((union ctl_io *)ctsio); 8569 return (CTL_RETVAL_COMPLETE); 8570 } 8571 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8572 /* 8573 * We are not registered 8574 */ 8575 mtx_unlock(&lun->lun_lock); 8576 free(ctsio->kern_data_ptr, M_CTL); 8577 ctl_set_reservation_conflict(ctsio); 8578 ctl_done((union ctl_io *)ctsio); 8579 return (CTL_RETVAL_COMPLETE); 8580 } else if (res_key != 0) { 8581 /* 8582 * We are not registered and trying to register but 8583 * the register key isn't zero. 8584 */ 8585 mtx_unlock(&lun->lun_lock); 8586 free(ctsio->kern_data_ptr, M_CTL); 8587 ctl_set_reservation_conflict(ctsio); 8588 ctl_done((union ctl_io *)ctsio); 8589 return (CTL_RETVAL_COMPLETE); 8590 } 8591 mtx_unlock(&lun->lun_lock); 8592 } 8593 8594 switch (cdb->action & SPRO_ACTION_MASK) { 8595 case SPRO_REGISTER: 8596 case SPRO_REG_IGNO: { 8597 8598#if 0 8599 printf("Registration received\n"); 8600#endif 8601 8602 /* 8603 * We don't support any of these options, as we report in 8604 * the read capabilities request (see 8605 * ctl_persistent_reserve_in(), above). 8606 */ 8607 if ((param->flags & SPR_SPEC_I_PT) 8608 || (param->flags & SPR_ALL_TG_PT) 8609 || (param->flags & SPR_APTPL)) { 8610 int bit_ptr; 8611 8612 if (param->flags & SPR_APTPL) 8613 bit_ptr = 0; 8614 else if (param->flags & SPR_ALL_TG_PT) 8615 bit_ptr = 2; 8616 else /* SPR_SPEC_I_PT */ 8617 bit_ptr = 3; 8618 8619 free(ctsio->kern_data_ptr, M_CTL); 8620 ctl_set_invalid_field(ctsio, 8621 /*sks_valid*/ 1, 8622 /*command*/ 0, 8623 /*field*/ 20, 8624 /*bit_valid*/ 1, 8625 /*bit*/ bit_ptr); 8626 ctl_done((union ctl_io *)ctsio); 8627 return (CTL_RETVAL_COMPLETE); 8628 } 8629 8630 mtx_lock(&lun->lun_lock); 8631 8632 /* 8633 * The initiator wants to clear the 8634 * key/unregister. 8635 */ 8636 if (sa_res_key == 0) { 8637 if ((res_key == 0 8638 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8639 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8640 && !lun->per_res[residx].registered)) { 8641 mtx_unlock(&lun->lun_lock); 8642 goto done; 8643 } 8644 8645 lun->per_res[residx].registered = 0; 8646 memset(&lun->per_res[residx].res_key, 8647 0, sizeof(lun->per_res[residx].res_key)); 8648 lun->pr_key_count--; 8649 8650 if (residx == lun->pr_res_idx) { 8651 lun->flags &= ~CTL_LUN_PR_RESERVED; 8652 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8653 8654 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8655 || lun->res_type == SPR_TYPE_EX_AC_RO) 8656 && lun->pr_key_count) { 8657 /* 8658 * If the reservation is a registrants 8659 * only type we need to generate a UA 8660 * for other registered inits. The 8661 * sense code should be RESERVATIONS 8662 * RELEASED 8663 */ 8664 8665 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8666 if (lun->per_res[ 8667 i+persis_offset].registered 8668 == 0) 8669 continue; 8670 lun->pending_ua[i] |= 8671 CTL_UA_RES_RELEASE; 8672 } 8673 } 8674 lun->res_type = 0; 8675 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8676 if (lun->pr_key_count==0) { 8677 lun->flags &= ~CTL_LUN_PR_RESERVED; 8678 lun->res_type = 0; 8679 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8680 } 8681 } 8682 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8683 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8684 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8685 persis_io.pr.pr_info.residx = residx; 8686 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8687 &persis_io, sizeof(persis_io), 0 )) > 8688 CTL_HA_STATUS_SUCCESS) { 8689 printf("CTL:Persis Out error returned from " 8690 "ctl_ha_msg_send %d\n", isc_retval); 8691 } 8692 } else /* sa_res_key != 0 */ { 8693 8694 /* 8695 * If we aren't registered currently then increment 8696 * the key count and set the registered flag. 8697 */ 8698 if (!lun->per_res[residx].registered) { 8699 lun->pr_key_count++; 8700 lun->per_res[residx].registered = 1; 8701 } 8702 8703 memcpy(&lun->per_res[residx].res_key, 8704 param->serv_act_res_key, 8705 ctl_min(sizeof(param->serv_act_res_key), 8706 sizeof(lun->per_res[residx].res_key))); 8707 8708 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8709 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8710 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8711 persis_io.pr.pr_info.residx = residx; 8712 memcpy(persis_io.pr.pr_info.sa_res_key, 8713 param->serv_act_res_key, 8714 sizeof(param->serv_act_res_key)); 8715 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8716 &persis_io, sizeof(persis_io), 0)) > 8717 CTL_HA_STATUS_SUCCESS) { 8718 printf("CTL:Persis Out error returned from " 8719 "ctl_ha_msg_send %d\n", isc_retval); 8720 } 8721 } 8722 lun->PRGeneration++; 8723 mtx_unlock(&lun->lun_lock); 8724 8725 break; 8726 } 8727 case SPRO_RESERVE: 8728#if 0 8729 printf("Reserve executed type %d\n", type); 8730#endif 8731 mtx_lock(&lun->lun_lock); 8732 if (lun->flags & CTL_LUN_PR_RESERVED) { 8733 /* 8734 * if this isn't the reservation holder and it's 8735 * not a "all registrants" type or if the type is 8736 * different then we have a conflict 8737 */ 8738 if ((lun->pr_res_idx != residx 8739 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8740 || lun->res_type != type) { 8741 mtx_unlock(&lun->lun_lock); 8742 free(ctsio->kern_data_ptr, M_CTL); 8743 ctl_set_reservation_conflict(ctsio); 8744 ctl_done((union ctl_io *)ctsio); 8745 return (CTL_RETVAL_COMPLETE); 8746 } 8747 mtx_unlock(&lun->lun_lock); 8748 } else /* create a reservation */ { 8749 /* 8750 * If it's not an "all registrants" type record 8751 * reservation holder 8752 */ 8753 if (type != SPR_TYPE_WR_EX_AR 8754 && type != SPR_TYPE_EX_AC_AR) 8755 lun->pr_res_idx = residx; /* Res holder */ 8756 else 8757 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8758 8759 lun->flags |= CTL_LUN_PR_RESERVED; 8760 lun->res_type = type; 8761 8762 mtx_unlock(&lun->lun_lock); 8763 8764 /* send msg to other side */ 8765 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8766 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8767 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8768 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8769 persis_io.pr.pr_info.res_type = type; 8770 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8771 &persis_io, sizeof(persis_io), 0)) > 8772 CTL_HA_STATUS_SUCCESS) { 8773 printf("CTL:Persis Out error returned from " 8774 "ctl_ha_msg_send %d\n", isc_retval); 8775 } 8776 } 8777 break; 8778 8779 case SPRO_RELEASE: 8780 mtx_lock(&lun->lun_lock); 8781 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8782 /* No reservation exists return good status */ 8783 mtx_unlock(&lun->lun_lock); 8784 goto done; 8785 } 8786 /* 8787 * Is this nexus a reservation holder? 8788 */ 8789 if (lun->pr_res_idx != residx 8790 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8791 /* 8792 * not a res holder return good status but 8793 * do nothing 8794 */ 8795 mtx_unlock(&lun->lun_lock); 8796 goto done; 8797 } 8798 8799 if (lun->res_type != type) { 8800 mtx_unlock(&lun->lun_lock); 8801 free(ctsio->kern_data_ptr, M_CTL); 8802 ctl_set_illegal_pr_release(ctsio); 8803 ctl_done((union ctl_io *)ctsio); 8804 return (CTL_RETVAL_COMPLETE); 8805 } 8806 8807 /* okay to release */ 8808 lun->flags &= ~CTL_LUN_PR_RESERVED; 8809 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8810 lun->res_type = 0; 8811 8812 /* 8813 * if this isn't an exclusive access 8814 * res generate UA for all other 8815 * registrants. 8816 */ 8817 if (type != SPR_TYPE_EX_AC 8818 && type != SPR_TYPE_WR_EX) { 8819 /* 8820 * temporarily unregister so we don't generate UA 8821 */ 8822 lun->per_res[residx].registered = 0; 8823 8824 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8825 if (lun->per_res[i+persis_offset].registered 8826 == 0) 8827 continue; 8828 lun->pending_ua[i] |= 8829 CTL_UA_RES_RELEASE; 8830 } 8831 8832 lun->per_res[residx].registered = 1; 8833 } 8834 mtx_unlock(&lun->lun_lock); 8835 /* Send msg to other side */ 8836 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8837 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8838 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8839 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8840 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8841 printf("CTL:Persis Out error returned from " 8842 "ctl_ha_msg_send %d\n", isc_retval); 8843 } 8844 break; 8845 8846 case SPRO_CLEAR: 8847 /* send msg to other side */ 8848 8849 mtx_lock(&lun->lun_lock); 8850 lun->flags &= ~CTL_LUN_PR_RESERVED; 8851 lun->res_type = 0; 8852 lun->pr_key_count = 0; 8853 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8854 8855 8856 memset(&lun->per_res[residx].res_key, 8857 0, sizeof(lun->per_res[residx].res_key)); 8858 lun->per_res[residx].registered = 0; 8859 8860 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8861 if (lun->per_res[i].registered) { 8862 if (!persis_offset && i < CTL_MAX_INITIATORS) 8863 lun->pending_ua[i] |= 8864 CTL_UA_RES_PREEMPT; 8865 else if (persis_offset && i >= persis_offset) 8866 lun->pending_ua[i-persis_offset] |= 8867 CTL_UA_RES_PREEMPT; 8868 8869 memset(&lun->per_res[i].res_key, 8870 0, sizeof(struct scsi_per_res_key)); 8871 lun->per_res[i].registered = 0; 8872 } 8873 lun->PRGeneration++; 8874 mtx_unlock(&lun->lun_lock); 8875 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8876 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8877 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8878 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8879 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8880 printf("CTL:Persis Out error returned from " 8881 "ctl_ha_msg_send %d\n", isc_retval); 8882 } 8883 break; 8884 8885 case SPRO_PREEMPT: { 8886 int nretval; 8887 8888 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8889 residx, ctsio, cdb, param); 8890 if (nretval != 0) 8891 return (CTL_RETVAL_COMPLETE); 8892 break; 8893 } 8894 default: 8895 panic("Invalid PR type %x", cdb->action); 8896 } 8897 8898done: 8899 free(ctsio->kern_data_ptr, M_CTL); 8900 ctl_set_success(ctsio); 8901 ctl_done((union ctl_io *)ctsio); 8902 8903 return (retval); 8904} 8905 8906/* 8907 * This routine is for handling a message from the other SC pertaining to 8908 * persistent reserve out. All the error checking will have been done 8909 * so only perorming the action need be done here to keep the two 8910 * in sync. 8911 */ 8912static void 8913ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8914{ 8915 struct ctl_lun *lun; 8916 struct ctl_softc *softc; 8917 int i; 8918 uint32_t targ_lun; 8919 8920 softc = control_softc; 8921 8922 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8923 lun = softc->ctl_luns[targ_lun]; 8924 mtx_lock(&lun->lun_lock); 8925 switch(msg->pr.pr_info.action) { 8926 case CTL_PR_REG_KEY: 8927 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8928 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8929 lun->pr_key_count++; 8930 } 8931 lun->PRGeneration++; 8932 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8933 msg->pr.pr_info.sa_res_key, 8934 sizeof(struct scsi_per_res_key)); 8935 break; 8936 8937 case CTL_PR_UNREG_KEY: 8938 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8939 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8940 0, sizeof(struct scsi_per_res_key)); 8941 lun->pr_key_count--; 8942 8943 /* XXX Need to see if the reservation has been released */ 8944 /* if so do we need to generate UA? */ 8945 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8946 lun->flags &= ~CTL_LUN_PR_RESERVED; 8947 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8948 8949 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8950 || lun->res_type == SPR_TYPE_EX_AC_RO) 8951 && lun->pr_key_count) { 8952 /* 8953 * If the reservation is a registrants 8954 * only type we need to generate a UA 8955 * for other registered inits. The 8956 * sense code should be RESERVATIONS 8957 * RELEASED 8958 */ 8959 8960 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8961 if (lun->per_res[i+ 8962 persis_offset].registered == 0) 8963 continue; 8964 8965 lun->pending_ua[i] |= 8966 CTL_UA_RES_RELEASE; 8967 } 8968 } 8969 lun->res_type = 0; 8970 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8971 if (lun->pr_key_count==0) { 8972 lun->flags &= ~CTL_LUN_PR_RESERVED; 8973 lun->res_type = 0; 8974 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8975 } 8976 } 8977 lun->PRGeneration++; 8978 break; 8979 8980 case CTL_PR_RESERVE: 8981 lun->flags |= CTL_LUN_PR_RESERVED; 8982 lun->res_type = msg->pr.pr_info.res_type; 8983 lun->pr_res_idx = msg->pr.pr_info.residx; 8984 8985 break; 8986 8987 case CTL_PR_RELEASE: 8988 /* 8989 * if this isn't an exclusive access res generate UA for all 8990 * other registrants. 8991 */ 8992 if (lun->res_type != SPR_TYPE_EX_AC 8993 && lun->res_type != SPR_TYPE_WR_EX) { 8994 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8995 if (lun->per_res[i+persis_offset].registered) 8996 lun->pending_ua[i] |= 8997 CTL_UA_RES_RELEASE; 8998 } 8999 9000 lun->flags &= ~CTL_LUN_PR_RESERVED; 9001 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9002 lun->res_type = 0; 9003 break; 9004 9005 case CTL_PR_PREEMPT: 9006 ctl_pro_preempt_other(lun, msg); 9007 break; 9008 case CTL_PR_CLEAR: 9009 lun->flags &= ~CTL_LUN_PR_RESERVED; 9010 lun->res_type = 0; 9011 lun->pr_key_count = 0; 9012 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9013 9014 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9015 if (lun->per_res[i].registered == 0) 9016 continue; 9017 if (!persis_offset 9018 && i < CTL_MAX_INITIATORS) 9019 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9020 else if (persis_offset 9021 && i >= persis_offset) 9022 lun->pending_ua[i-persis_offset] |= 9023 CTL_UA_RES_PREEMPT; 9024 memset(&lun->per_res[i].res_key, 0, 9025 sizeof(struct scsi_per_res_key)); 9026 lun->per_res[i].registered = 0; 9027 } 9028 lun->PRGeneration++; 9029 break; 9030 } 9031 9032 mtx_unlock(&lun->lun_lock); 9033} 9034 9035int 9036ctl_read_write(struct ctl_scsiio *ctsio) 9037{ 9038 struct ctl_lun *lun; 9039 struct ctl_lba_len_flags *lbalen; 9040 uint64_t lba; 9041 uint32_t num_blocks; 9042 int flags, retval; 9043 int isread; 9044 9045 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9046 9047 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9048 9049 flags = 0; 9050 retval = CTL_RETVAL_COMPLETE; 9051 9052 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9053 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9054 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9055 uint32_t residx; 9056 9057 /* 9058 * XXX KDM need a lock here. 9059 */ 9060 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9061 if ((lun->res_type == SPR_TYPE_EX_AC 9062 && residx != lun->pr_res_idx) 9063 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9064 || lun->res_type == SPR_TYPE_EX_AC_AR) 9065 && !lun->per_res[residx].registered)) { 9066 ctl_set_reservation_conflict(ctsio); 9067 ctl_done((union ctl_io *)ctsio); 9068 return (CTL_RETVAL_COMPLETE); 9069 } 9070 } 9071 9072 switch (ctsio->cdb[0]) { 9073 case READ_6: 9074 case WRITE_6: { 9075 struct scsi_rw_6 *cdb; 9076 9077 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9078 9079 lba = scsi_3btoul(cdb->addr); 9080 /* only 5 bits are valid in the most significant address byte */ 9081 lba &= 0x1fffff; 9082 num_blocks = cdb->length; 9083 /* 9084 * This is correct according to SBC-2. 9085 */ 9086 if (num_blocks == 0) 9087 num_blocks = 256; 9088 break; 9089 } 9090 case READ_10: 9091 case WRITE_10: { 9092 struct scsi_rw_10 *cdb; 9093 9094 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9095 if (cdb->byte2 & SRW10_FUA) 9096 flags |= CTL_LLF_FUA; 9097 if (cdb->byte2 & SRW10_DPO) 9098 flags |= CTL_LLF_DPO; 9099 lba = scsi_4btoul(cdb->addr); 9100 num_blocks = scsi_2btoul(cdb->length); 9101 break; 9102 } 9103 case WRITE_VERIFY_10: { 9104 struct scsi_write_verify_10 *cdb; 9105 9106 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9107 flags |= CTL_LLF_FUA; 9108 if (cdb->byte2 & SWV_DPO) 9109 flags |= CTL_LLF_DPO; 9110 lba = scsi_4btoul(cdb->addr); 9111 num_blocks = scsi_2btoul(cdb->length); 9112 break; 9113 } 9114 case READ_12: 9115 case WRITE_12: { 9116 struct scsi_rw_12 *cdb; 9117 9118 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9119 if (cdb->byte2 & SRW12_FUA) 9120 flags |= CTL_LLF_FUA; 9121 if (cdb->byte2 & SRW12_DPO) 9122 flags |= CTL_LLF_DPO; 9123 lba = scsi_4btoul(cdb->addr); 9124 num_blocks = scsi_4btoul(cdb->length); 9125 break; 9126 } 9127 case WRITE_VERIFY_12: { 9128 struct scsi_write_verify_12 *cdb; 9129 9130 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9131 flags |= CTL_LLF_FUA; 9132 if (cdb->byte2 & SWV_DPO) 9133 flags |= CTL_LLF_DPO; 9134 lba = scsi_4btoul(cdb->addr); 9135 num_blocks = scsi_4btoul(cdb->length); 9136 break; 9137 } 9138 case READ_16: 9139 case WRITE_16: { 9140 struct scsi_rw_16 *cdb; 9141 9142 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9143 if (cdb->byte2 & SRW12_FUA) 9144 flags |= CTL_LLF_FUA; 9145 if (cdb->byte2 & SRW12_DPO) 9146 flags |= CTL_LLF_DPO; 9147 lba = scsi_8btou64(cdb->addr); 9148 num_blocks = scsi_4btoul(cdb->length); 9149 break; 9150 } 9151 case WRITE_ATOMIC_16: { 9152 struct scsi_rw_16 *cdb; 9153 9154 if (lun->be_lun->atomicblock == 0) { 9155 ctl_set_invalid_opcode(ctsio); 9156 ctl_done((union ctl_io *)ctsio); 9157 return (CTL_RETVAL_COMPLETE); 9158 } 9159 9160 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9161 if (cdb->byte2 & SRW12_FUA) 9162 flags |= CTL_LLF_FUA; 9163 if (cdb->byte2 & SRW12_DPO) 9164 flags |= CTL_LLF_DPO; 9165 lba = scsi_8btou64(cdb->addr); 9166 num_blocks = scsi_4btoul(cdb->length); 9167 if (num_blocks > lun->be_lun->atomicblock) { 9168 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9169 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9170 /*bit*/ 0); 9171 ctl_done((union ctl_io *)ctsio); 9172 return (CTL_RETVAL_COMPLETE); 9173 } 9174 break; 9175 } 9176 case WRITE_VERIFY_16: { 9177 struct scsi_write_verify_16 *cdb; 9178 9179 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9180 flags |= CTL_LLF_FUA; 9181 if (cdb->byte2 & SWV_DPO) 9182 flags |= CTL_LLF_DPO; 9183 lba = scsi_8btou64(cdb->addr); 9184 num_blocks = scsi_4btoul(cdb->length); 9185 break; 9186 } 9187 default: 9188 /* 9189 * We got a command we don't support. This shouldn't 9190 * happen, commands should be filtered out above us. 9191 */ 9192 ctl_set_invalid_opcode(ctsio); 9193 ctl_done((union ctl_io *)ctsio); 9194 9195 return (CTL_RETVAL_COMPLETE); 9196 break; /* NOTREACHED */ 9197 } 9198 9199 /* 9200 * The first check is to make sure we're in bounds, the second 9201 * check is to catch wrap-around problems. If the lba + num blocks 9202 * is less than the lba, then we've wrapped around and the block 9203 * range is invalid anyway. 9204 */ 9205 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9206 || ((lba + num_blocks) < lba)) { 9207 ctl_set_lba_out_of_range(ctsio); 9208 ctl_done((union ctl_io *)ctsio); 9209 return (CTL_RETVAL_COMPLETE); 9210 } 9211 9212 /* 9213 * According to SBC-3, a transfer length of 0 is not an error. 9214 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9215 * translates to 256 blocks for those commands. 9216 */ 9217 if (num_blocks == 0) { 9218 ctl_set_success(ctsio); 9219 ctl_done((union ctl_io *)ctsio); 9220 return (CTL_RETVAL_COMPLETE); 9221 } 9222 9223 /* Set FUA and/or DPO if caches are disabled. */ 9224 if (isread) { 9225 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9226 SCP_RCD) != 0) 9227 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9228 } else { 9229 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9230 SCP_WCE) == 0) 9231 flags |= CTL_LLF_FUA; 9232 } 9233 9234 lbalen = (struct ctl_lba_len_flags *) 9235 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9236 lbalen->lba = lba; 9237 lbalen->len = num_blocks; 9238 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9239 9240 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9241 ctsio->kern_rel_offset = 0; 9242 9243 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9244 9245 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9246 9247 return (retval); 9248} 9249 9250static int 9251ctl_cnw_cont(union ctl_io *io) 9252{ 9253 struct ctl_scsiio *ctsio; 9254 struct ctl_lun *lun; 9255 struct ctl_lba_len_flags *lbalen; 9256 int retval; 9257 9258 ctsio = &io->scsiio; 9259 ctsio->io_hdr.status = CTL_STATUS_NONE; 9260 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9261 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9262 lbalen = (struct ctl_lba_len_flags *) 9263 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9264 lbalen->flags &= ~CTL_LLF_COMPARE; 9265 lbalen->flags |= CTL_LLF_WRITE; 9266 9267 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9268 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9269 return (retval); 9270} 9271 9272int 9273ctl_cnw(struct ctl_scsiio *ctsio) 9274{ 9275 struct ctl_lun *lun; 9276 struct ctl_lba_len_flags *lbalen; 9277 uint64_t lba; 9278 uint32_t num_blocks; 9279 int flags, retval; 9280 9281 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9282 9283 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9284 9285 flags = 0; 9286 retval = CTL_RETVAL_COMPLETE; 9287 9288 switch (ctsio->cdb[0]) { 9289 case COMPARE_AND_WRITE: { 9290 struct scsi_compare_and_write *cdb; 9291 9292 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9293 if (cdb->byte2 & SRW10_FUA) 9294 flags |= CTL_LLF_FUA; 9295 if (cdb->byte2 & SRW10_DPO) 9296 flags |= CTL_LLF_DPO; 9297 lba = scsi_8btou64(cdb->addr); 9298 num_blocks = cdb->length; 9299 break; 9300 } 9301 default: 9302 /* 9303 * We got a command we don't support. This shouldn't 9304 * happen, commands should be filtered out above us. 9305 */ 9306 ctl_set_invalid_opcode(ctsio); 9307 ctl_done((union ctl_io *)ctsio); 9308 9309 return (CTL_RETVAL_COMPLETE); 9310 break; /* NOTREACHED */ 9311 } 9312 9313 /* 9314 * The first check is to make sure we're in bounds, the second 9315 * check is to catch wrap-around problems. If the lba + num blocks 9316 * is less than the lba, then we've wrapped around and the block 9317 * range is invalid anyway. 9318 */ 9319 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9320 || ((lba + num_blocks) < lba)) { 9321 ctl_set_lba_out_of_range(ctsio); 9322 ctl_done((union ctl_io *)ctsio); 9323 return (CTL_RETVAL_COMPLETE); 9324 } 9325 9326 /* 9327 * According to SBC-3, a transfer length of 0 is not an error. 9328 */ 9329 if (num_blocks == 0) { 9330 ctl_set_success(ctsio); 9331 ctl_done((union ctl_io *)ctsio); 9332 return (CTL_RETVAL_COMPLETE); 9333 } 9334 9335 /* Set FUA if write cache is disabled. */ 9336 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9337 SCP_WCE) == 0) 9338 flags |= CTL_LLF_FUA; 9339 9340 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9341 ctsio->kern_rel_offset = 0; 9342 9343 /* 9344 * Set the IO_CONT flag, so that if this I/O gets passed to 9345 * ctl_data_submit_done(), it'll get passed back to 9346 * ctl_ctl_cnw_cont() for further processing. 9347 */ 9348 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9349 ctsio->io_cont = ctl_cnw_cont; 9350 9351 lbalen = (struct ctl_lba_len_flags *) 9352 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9353 lbalen->lba = lba; 9354 lbalen->len = num_blocks; 9355 lbalen->flags = CTL_LLF_COMPARE | flags; 9356 9357 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9358 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9359 return (retval); 9360} 9361 9362int 9363ctl_verify(struct ctl_scsiio *ctsio) 9364{ 9365 struct ctl_lun *lun; 9366 struct ctl_lba_len_flags *lbalen; 9367 uint64_t lba; 9368 uint32_t num_blocks; 9369 int bytchk, flags; 9370 int retval; 9371 9372 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9373 9374 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9375 9376 bytchk = 0; 9377 flags = CTL_LLF_FUA; 9378 retval = CTL_RETVAL_COMPLETE; 9379 9380 switch (ctsio->cdb[0]) { 9381 case VERIFY_10: { 9382 struct scsi_verify_10 *cdb; 9383 9384 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9385 if (cdb->byte2 & SVFY_BYTCHK) 9386 bytchk = 1; 9387 if (cdb->byte2 & SVFY_DPO) 9388 flags |= CTL_LLF_DPO; 9389 lba = scsi_4btoul(cdb->addr); 9390 num_blocks = scsi_2btoul(cdb->length); 9391 break; 9392 } 9393 case VERIFY_12: { 9394 struct scsi_verify_12 *cdb; 9395 9396 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9397 if (cdb->byte2 & SVFY_BYTCHK) 9398 bytchk = 1; 9399 if (cdb->byte2 & SVFY_DPO) 9400 flags |= CTL_LLF_DPO; 9401 lba = scsi_4btoul(cdb->addr); 9402 num_blocks = scsi_4btoul(cdb->length); 9403 break; 9404 } 9405 case VERIFY_16: { 9406 struct scsi_rw_16 *cdb; 9407 9408 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9409 if (cdb->byte2 & SVFY_BYTCHK) 9410 bytchk = 1; 9411 if (cdb->byte2 & SVFY_DPO) 9412 flags |= CTL_LLF_DPO; 9413 lba = scsi_8btou64(cdb->addr); 9414 num_blocks = scsi_4btoul(cdb->length); 9415 break; 9416 } 9417 default: 9418 /* 9419 * We got a command we don't support. This shouldn't 9420 * happen, commands should be filtered out above us. 9421 */ 9422 ctl_set_invalid_opcode(ctsio); 9423 ctl_done((union ctl_io *)ctsio); 9424 return (CTL_RETVAL_COMPLETE); 9425 } 9426 9427 /* 9428 * The first check is to make sure we're in bounds, the second 9429 * check is to catch wrap-around problems. If the lba + num blocks 9430 * is less than the lba, then we've wrapped around and the block 9431 * range is invalid anyway. 9432 */ 9433 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9434 || ((lba + num_blocks) < lba)) { 9435 ctl_set_lba_out_of_range(ctsio); 9436 ctl_done((union ctl_io *)ctsio); 9437 return (CTL_RETVAL_COMPLETE); 9438 } 9439 9440 /* 9441 * According to SBC-3, a transfer length of 0 is not an error. 9442 */ 9443 if (num_blocks == 0) { 9444 ctl_set_success(ctsio); 9445 ctl_done((union ctl_io *)ctsio); 9446 return (CTL_RETVAL_COMPLETE); 9447 } 9448 9449 lbalen = (struct ctl_lba_len_flags *) 9450 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9451 lbalen->lba = lba; 9452 lbalen->len = num_blocks; 9453 if (bytchk) { 9454 lbalen->flags = CTL_LLF_COMPARE | flags; 9455 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9456 } else { 9457 lbalen->flags = CTL_LLF_VERIFY | flags; 9458 ctsio->kern_total_len = 0; 9459 } 9460 ctsio->kern_rel_offset = 0; 9461 9462 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9463 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9464 return (retval); 9465} 9466 9467int 9468ctl_report_luns(struct ctl_scsiio *ctsio) 9469{ 9470 struct scsi_report_luns *cdb; 9471 struct scsi_report_luns_data *lun_data; 9472 struct ctl_lun *lun, *request_lun; 9473 int num_luns, retval; 9474 uint32_t alloc_len, lun_datalen; 9475 int num_filled, well_known; 9476 uint32_t initidx, targ_lun_id, lun_id; 9477 9478 retval = CTL_RETVAL_COMPLETE; 9479 well_known = 0; 9480 9481 cdb = (struct scsi_report_luns *)ctsio->cdb; 9482 9483 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9484 9485 mtx_lock(&control_softc->ctl_lock); 9486 num_luns = control_softc->num_luns; 9487 mtx_unlock(&control_softc->ctl_lock); 9488 9489 switch (cdb->select_report) { 9490 case RPL_REPORT_DEFAULT: 9491 case RPL_REPORT_ALL: 9492 break; 9493 case RPL_REPORT_WELLKNOWN: 9494 well_known = 1; 9495 num_luns = 0; 9496 break; 9497 default: 9498 ctl_set_invalid_field(ctsio, 9499 /*sks_valid*/ 1, 9500 /*command*/ 1, 9501 /*field*/ 2, 9502 /*bit_valid*/ 0, 9503 /*bit*/ 0); 9504 ctl_done((union ctl_io *)ctsio); 9505 return (retval); 9506 break; /* NOTREACHED */ 9507 } 9508 9509 alloc_len = scsi_4btoul(cdb->length); 9510 /* 9511 * The initiator has to allocate at least 16 bytes for this request, 9512 * so he can at least get the header and the first LUN. Otherwise 9513 * we reject the request (per SPC-3 rev 14, section 6.21). 9514 */ 9515 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9516 sizeof(struct scsi_report_luns_lundata))) { 9517 ctl_set_invalid_field(ctsio, 9518 /*sks_valid*/ 1, 9519 /*command*/ 1, 9520 /*field*/ 6, 9521 /*bit_valid*/ 0, 9522 /*bit*/ 0); 9523 ctl_done((union ctl_io *)ctsio); 9524 return (retval); 9525 } 9526 9527 request_lun = (struct ctl_lun *) 9528 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9529 9530 lun_datalen = sizeof(*lun_data) + 9531 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9532 9533 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9534 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9535 ctsio->kern_sg_entries = 0; 9536 9537 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9538 9539 mtx_lock(&control_softc->ctl_lock); 9540 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9541 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9542 if (lun_id >= CTL_MAX_LUNS) 9543 continue; 9544 lun = control_softc->ctl_luns[lun_id]; 9545 if (lun == NULL) 9546 continue; 9547 9548 if (targ_lun_id <= 0xff) { 9549 /* 9550 * Peripheral addressing method, bus number 0. 9551 */ 9552 lun_data->luns[num_filled].lundata[0] = 9553 RPL_LUNDATA_ATYP_PERIPH; 9554 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9555 num_filled++; 9556 } else if (targ_lun_id <= 0x3fff) { 9557 /* 9558 * Flat addressing method. 9559 */ 9560 lun_data->luns[num_filled].lundata[0] = 9561 RPL_LUNDATA_ATYP_FLAT | 9562 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9563#ifdef OLDCTLHEADERS 9564 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9565 (targ_lun_id & SRLD_BUS_LUN_MASK); 9566#endif 9567 lun_data->luns[num_filled].lundata[1] = 9568#ifdef OLDCTLHEADERS 9569 targ_lun_id >> SRLD_BUS_LUN_BITS; 9570#endif 9571 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9572 num_filled++; 9573 } else { 9574 printf("ctl_report_luns: bogus LUN number %jd, " 9575 "skipping\n", (intmax_t)targ_lun_id); 9576 } 9577 /* 9578 * According to SPC-3, rev 14 section 6.21: 9579 * 9580 * "The execution of a REPORT LUNS command to any valid and 9581 * installed logical unit shall clear the REPORTED LUNS DATA 9582 * HAS CHANGED unit attention condition for all logical 9583 * units of that target with respect to the requesting 9584 * initiator. A valid and installed logical unit is one 9585 * having a PERIPHERAL QUALIFIER of 000b in the standard 9586 * INQUIRY data (see 6.4.2)." 9587 * 9588 * If request_lun is NULL, the LUN this report luns command 9589 * was issued to is either disabled or doesn't exist. In that 9590 * case, we shouldn't clear any pending lun change unit 9591 * attention. 9592 */ 9593 if (request_lun != NULL) { 9594 mtx_lock(&lun->lun_lock); 9595 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9596 mtx_unlock(&lun->lun_lock); 9597 } 9598 } 9599 mtx_unlock(&control_softc->ctl_lock); 9600 9601 /* 9602 * It's quite possible that we've returned fewer LUNs than we allocated 9603 * space for. Trim it. 9604 */ 9605 lun_datalen = sizeof(*lun_data) + 9606 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9607 9608 if (lun_datalen < alloc_len) { 9609 ctsio->residual = alloc_len - lun_datalen; 9610 ctsio->kern_data_len = lun_datalen; 9611 ctsio->kern_total_len = lun_datalen; 9612 } else { 9613 ctsio->residual = 0; 9614 ctsio->kern_data_len = alloc_len; 9615 ctsio->kern_total_len = alloc_len; 9616 } 9617 ctsio->kern_data_resid = 0; 9618 ctsio->kern_rel_offset = 0; 9619 ctsio->kern_sg_entries = 0; 9620 9621 /* 9622 * We set this to the actual data length, regardless of how much 9623 * space we actually have to return results. If the user looks at 9624 * this value, he'll know whether or not he allocated enough space 9625 * and reissue the command if necessary. We don't support well 9626 * known logical units, so if the user asks for that, return none. 9627 */ 9628 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9629 9630 /* 9631 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9632 * this request. 9633 */ 9634 ctsio->scsi_status = SCSI_STATUS_OK; 9635 9636 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9637 ctsio->be_move_done = ctl_config_move_done; 9638 ctl_datamove((union ctl_io *)ctsio); 9639 9640 return (retval); 9641} 9642 9643int 9644ctl_request_sense(struct ctl_scsiio *ctsio) 9645{ 9646 struct scsi_request_sense *cdb; 9647 struct scsi_sense_data *sense_ptr; 9648 struct ctl_lun *lun; 9649 uint32_t initidx; 9650 int have_error; 9651 scsi_sense_data_type sense_format; 9652 9653 cdb = (struct scsi_request_sense *)ctsio->cdb; 9654 9655 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9656 9657 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9658 9659 /* 9660 * Determine which sense format the user wants. 9661 */ 9662 if (cdb->byte2 & SRS_DESC) 9663 sense_format = SSD_TYPE_DESC; 9664 else 9665 sense_format = SSD_TYPE_FIXED; 9666 9667 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9668 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9669 ctsio->kern_sg_entries = 0; 9670 9671 /* 9672 * struct scsi_sense_data, which is currently set to 256 bytes, is 9673 * larger than the largest allowed value for the length field in the 9674 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9675 */ 9676 ctsio->residual = 0; 9677 ctsio->kern_data_len = cdb->length; 9678 ctsio->kern_total_len = cdb->length; 9679 9680 ctsio->kern_data_resid = 0; 9681 ctsio->kern_rel_offset = 0; 9682 ctsio->kern_sg_entries = 0; 9683 9684 /* 9685 * If we don't have a LUN, we don't have any pending sense. 9686 */ 9687 if (lun == NULL) 9688 goto no_sense; 9689 9690 have_error = 0; 9691 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9692 /* 9693 * Check for pending sense, and then for pending unit attentions. 9694 * Pending sense gets returned first, then pending unit attentions. 9695 */ 9696 mtx_lock(&lun->lun_lock); 9697#ifdef CTL_WITH_CA 9698 if (ctl_is_set(lun->have_ca, initidx)) { 9699 scsi_sense_data_type stored_format; 9700 9701 /* 9702 * Check to see which sense format was used for the stored 9703 * sense data. 9704 */ 9705 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9706 9707 /* 9708 * If the user requested a different sense format than the 9709 * one we stored, then we need to convert it to the other 9710 * format. If we're going from descriptor to fixed format 9711 * sense data, we may lose things in translation, depending 9712 * on what options were used. 9713 * 9714 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9715 * for some reason we'll just copy it out as-is. 9716 */ 9717 if ((stored_format == SSD_TYPE_FIXED) 9718 && (sense_format == SSD_TYPE_DESC)) 9719 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9720 &lun->pending_sense[initidx], 9721 (struct scsi_sense_data_desc *)sense_ptr); 9722 else if ((stored_format == SSD_TYPE_DESC) 9723 && (sense_format == SSD_TYPE_FIXED)) 9724 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9725 &lun->pending_sense[initidx], 9726 (struct scsi_sense_data_fixed *)sense_ptr); 9727 else 9728 memcpy(sense_ptr, &lun->pending_sense[initidx], 9729 ctl_min(sizeof(*sense_ptr), 9730 sizeof(lun->pending_sense[initidx]))); 9731 9732 ctl_clear_mask(lun->have_ca, initidx); 9733 have_error = 1; 9734 } else 9735#endif 9736 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9737 ctl_ua_type ua_type; 9738 9739 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9740 sense_ptr, sense_format); 9741 if (ua_type != CTL_UA_NONE) 9742 have_error = 1; 9743 } 9744 mtx_unlock(&lun->lun_lock); 9745 9746 /* 9747 * We already have a pending error, return it. 9748 */ 9749 if (have_error != 0) { 9750 /* 9751 * We report the SCSI status as OK, since the status of the 9752 * request sense command itself is OK. 9753 */ 9754 ctsio->scsi_status = SCSI_STATUS_OK; 9755 9756 /* 9757 * We report 0 for the sense length, because we aren't doing 9758 * autosense in this case. We're reporting sense as 9759 * parameter data. 9760 */ 9761 ctsio->sense_len = 0; 9762 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9763 ctsio->be_move_done = ctl_config_move_done; 9764 ctl_datamove((union ctl_io *)ctsio); 9765 9766 return (CTL_RETVAL_COMPLETE); 9767 } 9768 9769no_sense: 9770 9771 /* 9772 * No sense information to report, so we report that everything is 9773 * okay. 9774 */ 9775 ctl_set_sense_data(sense_ptr, 9776 lun, 9777 sense_format, 9778 /*current_error*/ 1, 9779 /*sense_key*/ SSD_KEY_NO_SENSE, 9780 /*asc*/ 0x00, 9781 /*ascq*/ 0x00, 9782 SSD_ELEM_NONE); 9783 9784 ctsio->scsi_status = SCSI_STATUS_OK; 9785 9786 /* 9787 * We report 0 for the sense length, because we aren't doing 9788 * autosense in this case. We're reporting sense as parameter data. 9789 */ 9790 ctsio->sense_len = 0; 9791 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9792 ctsio->be_move_done = ctl_config_move_done; 9793 ctl_datamove((union ctl_io *)ctsio); 9794 9795 return (CTL_RETVAL_COMPLETE); 9796} 9797 9798int 9799ctl_tur(struct ctl_scsiio *ctsio) 9800{ 9801 struct ctl_lun *lun; 9802 9803 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9804 9805 CTL_DEBUG_PRINT(("ctl_tur\n")); 9806 9807 if (lun == NULL) 9808 return (EINVAL); 9809 9810 ctsio->scsi_status = SCSI_STATUS_OK; 9811 ctsio->io_hdr.status = CTL_SUCCESS; 9812 9813 ctl_done((union ctl_io *)ctsio); 9814 9815 return (CTL_RETVAL_COMPLETE); 9816} 9817 9818#ifdef notyet 9819static int 9820ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9821{ 9822 9823} 9824#endif 9825 9826static int 9827ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9828{ 9829 struct scsi_vpd_supported_pages *pages; 9830 int sup_page_size; 9831 struct ctl_lun *lun; 9832 9833 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9834 9835 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9836 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9837 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9838 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9839 ctsio->kern_sg_entries = 0; 9840 9841 if (sup_page_size < alloc_len) { 9842 ctsio->residual = alloc_len - sup_page_size; 9843 ctsio->kern_data_len = sup_page_size; 9844 ctsio->kern_total_len = sup_page_size; 9845 } else { 9846 ctsio->residual = 0; 9847 ctsio->kern_data_len = alloc_len; 9848 ctsio->kern_total_len = alloc_len; 9849 } 9850 ctsio->kern_data_resid = 0; 9851 ctsio->kern_rel_offset = 0; 9852 ctsio->kern_sg_entries = 0; 9853 9854 /* 9855 * The control device is always connected. The disk device, on the 9856 * other hand, may not be online all the time. Need to change this 9857 * to figure out whether the disk device is actually online or not. 9858 */ 9859 if (lun != NULL) 9860 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9861 lun->be_lun->lun_type; 9862 else 9863 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9864 9865 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9866 /* Supported VPD pages */ 9867 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9868 /* Serial Number */ 9869 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9870 /* Device Identification */ 9871 pages->page_list[2] = SVPD_DEVICE_ID; 9872 /* Extended INQUIRY Data */ 9873 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9874 /* Mode Page Policy */ 9875 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9876 /* SCSI Ports */ 9877 pages->page_list[5] = SVPD_SCSI_PORTS; 9878 /* Third-party Copy */ 9879 pages->page_list[6] = SVPD_SCSI_TPC; 9880 /* Block limits */ 9881 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9882 /* Block Device Characteristics */ 9883 pages->page_list[8] = SVPD_BDC; 9884 /* Logical Block Provisioning */ 9885 pages->page_list[9] = SVPD_LBP; 9886 9887 ctsio->scsi_status = SCSI_STATUS_OK; 9888 9889 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9890 ctsio->be_move_done = ctl_config_move_done; 9891 ctl_datamove((union ctl_io *)ctsio); 9892 9893 return (CTL_RETVAL_COMPLETE); 9894} 9895 9896static int 9897ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9898{ 9899 struct scsi_vpd_unit_serial_number *sn_ptr; 9900 struct ctl_lun *lun; 9901 9902 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9903 9904 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9905 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9906 ctsio->kern_sg_entries = 0; 9907 9908 if (sizeof(*sn_ptr) < alloc_len) { 9909 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9910 ctsio->kern_data_len = sizeof(*sn_ptr); 9911 ctsio->kern_total_len = sizeof(*sn_ptr); 9912 } else { 9913 ctsio->residual = 0; 9914 ctsio->kern_data_len = alloc_len; 9915 ctsio->kern_total_len = alloc_len; 9916 } 9917 ctsio->kern_data_resid = 0; 9918 ctsio->kern_rel_offset = 0; 9919 ctsio->kern_sg_entries = 0; 9920 9921 /* 9922 * The control device is always connected. The disk device, on the 9923 * other hand, may not be online all the time. Need to change this 9924 * to figure out whether the disk device is actually online or not. 9925 */ 9926 if (lun != NULL) 9927 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9928 lun->be_lun->lun_type; 9929 else 9930 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9931 9932 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9933 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9934 /* 9935 * If we don't have a LUN, we just leave the serial number as 9936 * all spaces. 9937 */ 9938 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9939 if (lun != NULL) { 9940 strncpy((char *)sn_ptr->serial_num, 9941 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9942 } 9943 ctsio->scsi_status = SCSI_STATUS_OK; 9944 9945 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9946 ctsio->be_move_done = ctl_config_move_done; 9947 ctl_datamove((union ctl_io *)ctsio); 9948 9949 return (CTL_RETVAL_COMPLETE); 9950} 9951 9952 9953static int 9954ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9955{ 9956 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9957 struct ctl_lun *lun; 9958 int data_len; 9959 9960 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9961 9962 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9963 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9964 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9965 ctsio->kern_sg_entries = 0; 9966 9967 if (data_len < alloc_len) { 9968 ctsio->residual = alloc_len - data_len; 9969 ctsio->kern_data_len = data_len; 9970 ctsio->kern_total_len = data_len; 9971 } else { 9972 ctsio->residual = 0; 9973 ctsio->kern_data_len = alloc_len; 9974 ctsio->kern_total_len = alloc_len; 9975 } 9976 ctsio->kern_data_resid = 0; 9977 ctsio->kern_rel_offset = 0; 9978 ctsio->kern_sg_entries = 0; 9979 9980 /* 9981 * The control device is always connected. The disk device, on the 9982 * other hand, may not be online all the time. 9983 */ 9984 if (lun != NULL) 9985 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9986 lun->be_lun->lun_type; 9987 else 9988 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9989 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9990 eid_ptr->page_length = data_len - 4; 9991 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9992 eid_ptr->flags3 = SVPD_EID_V_SUP; 9993 9994 ctsio->scsi_status = SCSI_STATUS_OK; 9995 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9996 ctsio->be_move_done = ctl_config_move_done; 9997 ctl_datamove((union ctl_io *)ctsio); 9998 9999 return (CTL_RETVAL_COMPLETE); 10000} 10001 10002static int 10003ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10004{ 10005 struct scsi_vpd_mode_page_policy *mpp_ptr; 10006 struct ctl_lun *lun; 10007 int data_len; 10008 10009 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10010 10011 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10012 sizeof(struct scsi_vpd_mode_page_policy_descr); 10013 10014 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10015 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10016 ctsio->kern_sg_entries = 0; 10017 10018 if (data_len < alloc_len) { 10019 ctsio->residual = alloc_len - data_len; 10020 ctsio->kern_data_len = data_len; 10021 ctsio->kern_total_len = data_len; 10022 } else { 10023 ctsio->residual = 0; 10024 ctsio->kern_data_len = alloc_len; 10025 ctsio->kern_total_len = alloc_len; 10026 } 10027 ctsio->kern_data_resid = 0; 10028 ctsio->kern_rel_offset = 0; 10029 ctsio->kern_sg_entries = 0; 10030 10031 /* 10032 * The control device is always connected. The disk device, on the 10033 * other hand, may not be online all the time. 10034 */ 10035 if (lun != NULL) 10036 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10037 lun->be_lun->lun_type; 10038 else 10039 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10040 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10041 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10042 mpp_ptr->descr[0].page_code = 0x3f; 10043 mpp_ptr->descr[0].subpage_code = 0xff; 10044 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10045 10046 ctsio->scsi_status = SCSI_STATUS_OK; 10047 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10048 ctsio->be_move_done = ctl_config_move_done; 10049 ctl_datamove((union ctl_io *)ctsio); 10050 10051 return (CTL_RETVAL_COMPLETE); 10052} 10053 10054static int 10055ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10056{ 10057 struct scsi_vpd_device_id *devid_ptr; 10058 struct scsi_vpd_id_descriptor *desc; 10059 struct ctl_softc *ctl_softc; 10060 struct ctl_lun *lun; 10061 struct ctl_port *port; 10062 int data_len; 10063 uint8_t proto; 10064 10065 ctl_softc = control_softc; 10066 10067 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10069 10070 data_len = sizeof(struct scsi_vpd_device_id) + 10071 sizeof(struct scsi_vpd_id_descriptor) + 10072 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10073 sizeof(struct scsi_vpd_id_descriptor) + 10074 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10075 if (lun && lun->lun_devid) 10076 data_len += lun->lun_devid->len; 10077 if (port->port_devid) 10078 data_len += port->port_devid->len; 10079 if (port->target_devid) 10080 data_len += port->target_devid->len; 10081 10082 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10083 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10084 ctsio->kern_sg_entries = 0; 10085 10086 if (data_len < alloc_len) { 10087 ctsio->residual = alloc_len - data_len; 10088 ctsio->kern_data_len = data_len; 10089 ctsio->kern_total_len = data_len; 10090 } else { 10091 ctsio->residual = 0; 10092 ctsio->kern_data_len = alloc_len; 10093 ctsio->kern_total_len = alloc_len; 10094 } 10095 ctsio->kern_data_resid = 0; 10096 ctsio->kern_rel_offset = 0; 10097 ctsio->kern_sg_entries = 0; 10098 10099 /* 10100 * The control device is always connected. The disk device, on the 10101 * other hand, may not be online all the time. 10102 */ 10103 if (lun != NULL) 10104 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10105 lun->be_lun->lun_type; 10106 else 10107 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10108 devid_ptr->page_code = SVPD_DEVICE_ID; 10109 scsi_ulto2b(data_len - 4, devid_ptr->length); 10110 10111 if (port->port_type == CTL_PORT_FC) 10112 proto = SCSI_PROTO_FC << 4; 10113 else if (port->port_type == CTL_PORT_ISCSI) 10114 proto = SCSI_PROTO_ISCSI << 4; 10115 else 10116 proto = SCSI_PROTO_SPI << 4; 10117 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10118 10119 /* 10120 * We're using a LUN association here. i.e., this device ID is a 10121 * per-LUN identifier. 10122 */ 10123 if (lun && lun->lun_devid) { 10124 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10125 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10126 lun->lun_devid->len); 10127 } 10128 10129 /* 10130 * This is for the WWPN which is a port association. 10131 */ 10132 if (port->port_devid) { 10133 memcpy(desc, port->port_devid->data, port->port_devid->len); 10134 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10135 port->port_devid->len); 10136 } 10137 10138 /* 10139 * This is for the Relative Target Port(type 4h) identifier 10140 */ 10141 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10142 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10143 SVPD_ID_TYPE_RELTARG; 10144 desc->length = 4; 10145 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10146 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10147 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10148 10149 /* 10150 * This is for the Target Port Group(type 5h) identifier 10151 */ 10152 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10153 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10154 SVPD_ID_TYPE_TPORTGRP; 10155 desc->length = 4; 10156 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10157 &desc->identifier[2]); 10158 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10159 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10160 10161 /* 10162 * This is for the Target identifier 10163 */ 10164 if (port->target_devid) { 10165 memcpy(desc, port->target_devid->data, port->target_devid->len); 10166 } 10167 10168 ctsio->scsi_status = SCSI_STATUS_OK; 10169 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10170 ctsio->be_move_done = ctl_config_move_done; 10171 ctl_datamove((union ctl_io *)ctsio); 10172 10173 return (CTL_RETVAL_COMPLETE); 10174} 10175 10176static int 10177ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10178{ 10179 struct ctl_softc *softc = control_softc; 10180 struct scsi_vpd_scsi_ports *sp; 10181 struct scsi_vpd_port_designation *pd; 10182 struct scsi_vpd_port_designation_cont *pdc; 10183 struct ctl_lun *lun; 10184 struct ctl_port *port; 10185 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10186 int num_target_port_groups, single; 10187 10188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10189 10190 single = ctl_is_single; 10191 if (single) 10192 num_target_port_groups = 1; 10193 else 10194 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10195 num_target_ports = 0; 10196 iid_len = 0; 10197 id_len = 0; 10198 mtx_lock(&softc->ctl_lock); 10199 STAILQ_FOREACH(port, &softc->port_list, links) { 10200 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10201 continue; 10202 if (lun != NULL && 10203 ctl_map_lun_back(port->targ_port, lun->lun) >= 10204 CTL_MAX_LUNS) 10205 continue; 10206 num_target_ports++; 10207 if (port->init_devid) 10208 iid_len += port->init_devid->len; 10209 if (port->port_devid) 10210 id_len += port->port_devid->len; 10211 } 10212 mtx_unlock(&softc->ctl_lock); 10213 10214 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10215 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10216 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10217 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10218 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10219 ctsio->kern_sg_entries = 0; 10220 10221 if (data_len < alloc_len) { 10222 ctsio->residual = alloc_len - data_len; 10223 ctsio->kern_data_len = data_len; 10224 ctsio->kern_total_len = data_len; 10225 } else { 10226 ctsio->residual = 0; 10227 ctsio->kern_data_len = alloc_len; 10228 ctsio->kern_total_len = alloc_len; 10229 } 10230 ctsio->kern_data_resid = 0; 10231 ctsio->kern_rel_offset = 0; 10232 ctsio->kern_sg_entries = 0; 10233 10234 /* 10235 * The control device is always connected. The disk device, on the 10236 * other hand, may not be online all the time. Need to change this 10237 * to figure out whether the disk device is actually online or not. 10238 */ 10239 if (lun != NULL) 10240 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10241 lun->be_lun->lun_type; 10242 else 10243 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10244 10245 sp->page_code = SVPD_SCSI_PORTS; 10246 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10247 sp->page_length); 10248 pd = &sp->design[0]; 10249 10250 mtx_lock(&softc->ctl_lock); 10251 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10252 pg = 0; 10253 else 10254 pg = 1; 10255 for (g = 0; g < num_target_port_groups; g++) { 10256 STAILQ_FOREACH(port, &softc->port_list, links) { 10257 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10258 continue; 10259 if (lun != NULL && 10260 ctl_map_lun_back(port->targ_port, lun->lun) >= 10261 CTL_MAX_LUNS) 10262 continue; 10263 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10264 scsi_ulto2b(p, pd->relative_port_id); 10265 if (port->init_devid && g == pg) { 10266 iid_len = port->init_devid->len; 10267 memcpy(pd->initiator_transportid, 10268 port->init_devid->data, port->init_devid->len); 10269 } else 10270 iid_len = 0; 10271 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10272 pdc = (struct scsi_vpd_port_designation_cont *) 10273 (&pd->initiator_transportid[iid_len]); 10274 if (port->port_devid && g == pg) { 10275 id_len = port->port_devid->len; 10276 memcpy(pdc->target_port_descriptors, 10277 port->port_devid->data, port->port_devid->len); 10278 } else 10279 id_len = 0; 10280 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10281 pd = (struct scsi_vpd_port_designation *) 10282 ((uint8_t *)pdc->target_port_descriptors + id_len); 10283 } 10284 } 10285 mtx_unlock(&softc->ctl_lock); 10286 10287 ctsio->scsi_status = SCSI_STATUS_OK; 10288 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10289 ctsio->be_move_done = ctl_config_move_done; 10290 ctl_datamove((union ctl_io *)ctsio); 10291 10292 return (CTL_RETVAL_COMPLETE); 10293} 10294 10295static int 10296ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10297{ 10298 struct scsi_vpd_block_limits *bl_ptr; 10299 struct ctl_lun *lun; 10300 int bs; 10301 10302 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10303 10304 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10305 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10306 ctsio->kern_sg_entries = 0; 10307 10308 if (sizeof(*bl_ptr) < alloc_len) { 10309 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10310 ctsio->kern_data_len = sizeof(*bl_ptr); 10311 ctsio->kern_total_len = sizeof(*bl_ptr); 10312 } else { 10313 ctsio->residual = 0; 10314 ctsio->kern_data_len = alloc_len; 10315 ctsio->kern_total_len = alloc_len; 10316 } 10317 ctsio->kern_data_resid = 0; 10318 ctsio->kern_rel_offset = 0; 10319 ctsio->kern_sg_entries = 0; 10320 10321 /* 10322 * The control device is always connected. The disk device, on the 10323 * other hand, may not be online all the time. Need to change this 10324 * to figure out whether the disk device is actually online or not. 10325 */ 10326 if (lun != NULL) 10327 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10328 lun->be_lun->lun_type; 10329 else 10330 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10331 10332 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10333 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10334 bl_ptr->max_cmp_write_len = 0xff; 10335 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10336 if (lun != NULL) { 10337 bs = lun->be_lun->blocksize; 10338 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10339 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10340 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10341 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10342 if (lun->be_lun->pblockexp != 0) { 10343 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10344 bl_ptr->opt_unmap_grain); 10345 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10346 bl_ptr->unmap_grain_align); 10347 } 10348 } 10349 scsi_ulto4b(lun->be_lun->atomicblock, 10350 bl_ptr->max_atomic_transfer_length); 10351 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10352 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10353 } 10354 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10355 10356 ctsio->scsi_status = SCSI_STATUS_OK; 10357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10358 ctsio->be_move_done = ctl_config_move_done; 10359 ctl_datamove((union ctl_io *)ctsio); 10360 10361 return (CTL_RETVAL_COMPLETE); 10362} 10363 10364static int 10365ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10366{ 10367 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10368 struct ctl_lun *lun; 10369 10370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10371 10372 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10373 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10374 ctsio->kern_sg_entries = 0; 10375 10376 if (sizeof(*bdc_ptr) < alloc_len) { 10377 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10378 ctsio->kern_data_len = sizeof(*bdc_ptr); 10379 ctsio->kern_total_len = sizeof(*bdc_ptr); 10380 } else { 10381 ctsio->residual = 0; 10382 ctsio->kern_data_len = alloc_len; 10383 ctsio->kern_total_len = alloc_len; 10384 } 10385 ctsio->kern_data_resid = 0; 10386 ctsio->kern_rel_offset = 0; 10387 ctsio->kern_sg_entries = 0; 10388 10389 /* 10390 * The control device is always connected. The disk device, on the 10391 * other hand, may not be online all the time. Need to change this 10392 * to figure out whether the disk device is actually online or not. 10393 */ 10394 if (lun != NULL) 10395 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10396 lun->be_lun->lun_type; 10397 else 10398 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10399 bdc_ptr->page_code = SVPD_BDC; 10400 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10401 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10402 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10403 10404 ctsio->scsi_status = SCSI_STATUS_OK; 10405 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10406 ctsio->be_move_done = ctl_config_move_done; 10407 ctl_datamove((union ctl_io *)ctsio); 10408 10409 return (CTL_RETVAL_COMPLETE); 10410} 10411 10412static int 10413ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10414{ 10415 struct scsi_vpd_logical_block_prov *lbp_ptr; 10416 struct ctl_lun *lun; 10417 10418 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10419 10420 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10421 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10422 ctsio->kern_sg_entries = 0; 10423 10424 if (sizeof(*lbp_ptr) < alloc_len) { 10425 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10426 ctsio->kern_data_len = sizeof(*lbp_ptr); 10427 ctsio->kern_total_len = sizeof(*lbp_ptr); 10428 } else { 10429 ctsio->residual = 0; 10430 ctsio->kern_data_len = alloc_len; 10431 ctsio->kern_total_len = alloc_len; 10432 } 10433 ctsio->kern_data_resid = 0; 10434 ctsio->kern_rel_offset = 0; 10435 ctsio->kern_sg_entries = 0; 10436 10437 /* 10438 * The control device is always connected. The disk device, on the 10439 * other hand, may not be online all the time. Need to change this 10440 * to figure out whether the disk device is actually online or not. 10441 */ 10442 if (lun != NULL) 10443 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10444 lun->be_lun->lun_type; 10445 else 10446 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10447 10448 lbp_ptr->page_code = SVPD_LBP; 10449 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10450 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10451 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10452 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10453 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10454 } 10455 10456 ctsio->scsi_status = SCSI_STATUS_OK; 10457 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10458 ctsio->be_move_done = ctl_config_move_done; 10459 ctl_datamove((union ctl_io *)ctsio); 10460 10461 return (CTL_RETVAL_COMPLETE); 10462} 10463 10464static int 10465ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10466{ 10467 struct scsi_inquiry *cdb; 10468 struct ctl_lun *lun; 10469 int alloc_len, retval; 10470 10471 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10472 cdb = (struct scsi_inquiry *)ctsio->cdb; 10473 10474 retval = CTL_RETVAL_COMPLETE; 10475 10476 alloc_len = scsi_2btoul(cdb->length); 10477 10478 switch (cdb->page_code) { 10479 case SVPD_SUPPORTED_PAGES: 10480 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10481 break; 10482 case SVPD_UNIT_SERIAL_NUMBER: 10483 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10484 break; 10485 case SVPD_DEVICE_ID: 10486 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10487 break; 10488 case SVPD_EXTENDED_INQUIRY_DATA: 10489 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10490 break; 10491 case SVPD_MODE_PAGE_POLICY: 10492 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10493 break; 10494 case SVPD_SCSI_PORTS: 10495 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10496 break; 10497 case SVPD_SCSI_TPC: 10498 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10499 break; 10500 case SVPD_BLOCK_LIMITS: 10501 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10502 break; 10503 case SVPD_BDC: 10504 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10505 break; 10506 case SVPD_LBP: 10507 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10508 break; 10509 default: 10510 ctl_set_invalid_field(ctsio, 10511 /*sks_valid*/ 1, 10512 /*command*/ 1, 10513 /*field*/ 2, 10514 /*bit_valid*/ 0, 10515 /*bit*/ 0); 10516 ctl_done((union ctl_io *)ctsio); 10517 retval = CTL_RETVAL_COMPLETE; 10518 break; 10519 } 10520 10521 return (retval); 10522} 10523 10524static int 10525ctl_inquiry_std(struct ctl_scsiio *ctsio) 10526{ 10527 struct scsi_inquiry_data *inq_ptr; 10528 struct scsi_inquiry *cdb; 10529 struct ctl_softc *ctl_softc; 10530 struct ctl_lun *lun; 10531 char *val; 10532 uint32_t alloc_len, data_len; 10533 ctl_port_type port_type; 10534 10535 ctl_softc = control_softc; 10536 10537 /* 10538 * Figure out whether we're talking to a Fibre Channel port or not. 10539 * We treat the ioctl front end, and any SCSI adapters, as packetized 10540 * SCSI front ends. 10541 */ 10542 port_type = ctl_softc->ctl_ports[ 10543 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10544 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10545 port_type = CTL_PORT_SCSI; 10546 10547 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10548 cdb = (struct scsi_inquiry *)ctsio->cdb; 10549 alloc_len = scsi_2btoul(cdb->length); 10550 10551 /* 10552 * We malloc the full inquiry data size here and fill it 10553 * in. If the user only asks for less, we'll give him 10554 * that much. 10555 */ 10556 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10557 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10558 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10559 ctsio->kern_sg_entries = 0; 10560 ctsio->kern_data_resid = 0; 10561 ctsio->kern_rel_offset = 0; 10562 10563 if (data_len < alloc_len) { 10564 ctsio->residual = alloc_len - data_len; 10565 ctsio->kern_data_len = data_len; 10566 ctsio->kern_total_len = data_len; 10567 } else { 10568 ctsio->residual = 0; 10569 ctsio->kern_data_len = alloc_len; 10570 ctsio->kern_total_len = alloc_len; 10571 } 10572 10573 /* 10574 * If we have a LUN configured, report it as connected. Otherwise, 10575 * report that it is offline or no device is supported, depending 10576 * on the value of inquiry_pq_no_lun. 10577 * 10578 * According to the spec (SPC-4 r34), the peripheral qualifier 10579 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10580 * 10581 * "A peripheral device having the specified peripheral device type 10582 * is not connected to this logical unit. However, the device 10583 * server is capable of supporting the specified peripheral device 10584 * type on this logical unit." 10585 * 10586 * According to the same spec, the peripheral qualifier 10587 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10588 * 10589 * "The device server is not capable of supporting a peripheral 10590 * device on this logical unit. For this peripheral qualifier the 10591 * peripheral device type shall be set to 1Fh. All other peripheral 10592 * device type values are reserved for this peripheral qualifier." 10593 * 10594 * Given the text, it would seem that we probably want to report that 10595 * the LUN is offline here. There is no LUN connected, but we can 10596 * support a LUN at the given LUN number. 10597 * 10598 * In the real world, though, it sounds like things are a little 10599 * different: 10600 * 10601 * - Linux, when presented with a LUN with the offline peripheral 10602 * qualifier, will create an sg driver instance for it. So when 10603 * you attach it to CTL, you wind up with a ton of sg driver 10604 * instances. (One for every LUN that Linux bothered to probe.) 10605 * Linux does this despite the fact that it issues a REPORT LUNs 10606 * to LUN 0 to get the inventory of supported LUNs. 10607 * 10608 * - There is other anecdotal evidence (from Emulex folks) about 10609 * arrays that use the offline peripheral qualifier for LUNs that 10610 * are on the "passive" path in an active/passive array. 10611 * 10612 * So the solution is provide a hopefully reasonable default 10613 * (return bad/no LUN) and allow the user to change the behavior 10614 * with a tunable/sysctl variable. 10615 */ 10616 if (lun != NULL) 10617 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10618 lun->be_lun->lun_type; 10619 else if (ctl_softc->inquiry_pq_no_lun == 0) 10620 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10621 else 10622 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10623 10624 /* RMB in byte 2 is 0 */ 10625 inq_ptr->version = SCSI_REV_SPC4; 10626 10627 /* 10628 * According to SAM-3, even if a device only supports a single 10629 * level of LUN addressing, it should still set the HISUP bit: 10630 * 10631 * 4.9.1 Logical unit numbers overview 10632 * 10633 * All logical unit number formats described in this standard are 10634 * hierarchical in structure even when only a single level in that 10635 * hierarchy is used. The HISUP bit shall be set to one in the 10636 * standard INQUIRY data (see SPC-2) when any logical unit number 10637 * format described in this standard is used. Non-hierarchical 10638 * formats are outside the scope of this standard. 10639 * 10640 * Therefore we set the HiSup bit here. 10641 * 10642 * The reponse format is 2, per SPC-3. 10643 */ 10644 inq_ptr->response_format = SID_HiSup | 2; 10645 10646 inq_ptr->additional_length = data_len - 10647 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10648 CTL_DEBUG_PRINT(("additional_length = %d\n", 10649 inq_ptr->additional_length)); 10650 10651 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10652 /* 16 bit addressing */ 10653 if (port_type == CTL_PORT_SCSI) 10654 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10655 /* XXX set the SID_MultiP bit here if we're actually going to 10656 respond on multiple ports */ 10657 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10658 10659 /* 16 bit data bus, synchronous transfers */ 10660 if (port_type == CTL_PORT_SCSI) 10661 inq_ptr->flags = SID_WBus16 | SID_Sync; 10662 /* 10663 * XXX KDM do we want to support tagged queueing on the control 10664 * device at all? 10665 */ 10666 if ((lun == NULL) 10667 || (lun->be_lun->lun_type != T_PROCESSOR)) 10668 inq_ptr->flags |= SID_CmdQue; 10669 /* 10670 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10671 * We have 8 bytes for the vendor name, and 16 bytes for the device 10672 * name and 4 bytes for the revision. 10673 */ 10674 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10675 "vendor")) == NULL) { 10676 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10677 } else { 10678 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10679 strncpy(inq_ptr->vendor, val, 10680 min(sizeof(inq_ptr->vendor), strlen(val))); 10681 } 10682 if (lun == NULL) { 10683 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10684 sizeof(inq_ptr->product)); 10685 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10686 switch (lun->be_lun->lun_type) { 10687 case T_DIRECT: 10688 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10689 sizeof(inq_ptr->product)); 10690 break; 10691 case T_PROCESSOR: 10692 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10693 sizeof(inq_ptr->product)); 10694 break; 10695 default: 10696 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10697 sizeof(inq_ptr->product)); 10698 break; 10699 } 10700 } else { 10701 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10702 strncpy(inq_ptr->product, val, 10703 min(sizeof(inq_ptr->product), strlen(val))); 10704 } 10705 10706 /* 10707 * XXX make this a macro somewhere so it automatically gets 10708 * incremented when we make changes. 10709 */ 10710 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10711 "revision")) == NULL) { 10712 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10713 } else { 10714 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10715 strncpy(inq_ptr->revision, val, 10716 min(sizeof(inq_ptr->revision), strlen(val))); 10717 } 10718 10719 /* 10720 * For parallel SCSI, we support double transition and single 10721 * transition clocking. We also support QAS (Quick Arbitration 10722 * and Selection) and Information Unit transfers on both the 10723 * control and array devices. 10724 */ 10725 if (port_type == CTL_PORT_SCSI) 10726 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10727 SID_SPI_IUS; 10728 10729 /* SAM-5 (no version claimed) */ 10730 scsi_ulto2b(0x00A0, inq_ptr->version1); 10731 /* SPC-4 (no version claimed) */ 10732 scsi_ulto2b(0x0460, inq_ptr->version2); 10733 if (port_type == CTL_PORT_FC) { 10734 /* FCP-2 ANSI INCITS.350:2003 */ 10735 scsi_ulto2b(0x0917, inq_ptr->version3); 10736 } else if (port_type == CTL_PORT_SCSI) { 10737 /* SPI-4 ANSI INCITS.362:200x */ 10738 scsi_ulto2b(0x0B56, inq_ptr->version3); 10739 } else if (port_type == CTL_PORT_ISCSI) { 10740 /* iSCSI (no version claimed) */ 10741 scsi_ulto2b(0x0960, inq_ptr->version3); 10742 } else if (port_type == CTL_PORT_SAS) { 10743 /* SAS (no version claimed) */ 10744 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10745 } 10746 10747 if (lun == NULL) { 10748 /* SBC-4 (no version claimed) */ 10749 scsi_ulto2b(0x0600, inq_ptr->version4); 10750 } else { 10751 switch (lun->be_lun->lun_type) { 10752 case T_DIRECT: 10753 /* SBC-4 (no version claimed) */ 10754 scsi_ulto2b(0x0600, inq_ptr->version4); 10755 break; 10756 case T_PROCESSOR: 10757 default: 10758 break; 10759 } 10760 } 10761 10762 ctsio->scsi_status = SCSI_STATUS_OK; 10763 if (ctsio->kern_data_len > 0) { 10764 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10765 ctsio->be_move_done = ctl_config_move_done; 10766 ctl_datamove((union ctl_io *)ctsio); 10767 } else { 10768 ctsio->io_hdr.status = CTL_SUCCESS; 10769 ctl_done((union ctl_io *)ctsio); 10770 } 10771 10772 return (CTL_RETVAL_COMPLETE); 10773} 10774 10775int 10776ctl_inquiry(struct ctl_scsiio *ctsio) 10777{ 10778 struct scsi_inquiry *cdb; 10779 int retval; 10780 10781 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10782 10783 cdb = (struct scsi_inquiry *)ctsio->cdb; 10784 if (cdb->byte2 & SI_EVPD) 10785 retval = ctl_inquiry_evpd(ctsio); 10786 else if (cdb->page_code == 0) 10787 retval = ctl_inquiry_std(ctsio); 10788 else { 10789 ctl_set_invalid_field(ctsio, 10790 /*sks_valid*/ 1, 10791 /*command*/ 1, 10792 /*field*/ 2, 10793 /*bit_valid*/ 0, 10794 /*bit*/ 0); 10795 ctl_done((union ctl_io *)ctsio); 10796 return (CTL_RETVAL_COMPLETE); 10797 } 10798 10799 return (retval); 10800} 10801 10802/* 10803 * For known CDB types, parse the LBA and length. 10804 */ 10805static int 10806ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10807{ 10808 if (io->io_hdr.io_type != CTL_IO_SCSI) 10809 return (1); 10810 10811 switch (io->scsiio.cdb[0]) { 10812 case COMPARE_AND_WRITE: { 10813 struct scsi_compare_and_write *cdb; 10814 10815 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10816 10817 *lba = scsi_8btou64(cdb->addr); 10818 *len = cdb->length; 10819 break; 10820 } 10821 case READ_6: 10822 case WRITE_6: { 10823 struct scsi_rw_6 *cdb; 10824 10825 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10826 10827 *lba = scsi_3btoul(cdb->addr); 10828 /* only 5 bits are valid in the most significant address byte */ 10829 *lba &= 0x1fffff; 10830 *len = cdb->length; 10831 break; 10832 } 10833 case READ_10: 10834 case WRITE_10: { 10835 struct scsi_rw_10 *cdb; 10836 10837 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10838 10839 *lba = scsi_4btoul(cdb->addr); 10840 *len = scsi_2btoul(cdb->length); 10841 break; 10842 } 10843 case WRITE_VERIFY_10: { 10844 struct scsi_write_verify_10 *cdb; 10845 10846 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10847 10848 *lba = scsi_4btoul(cdb->addr); 10849 *len = scsi_2btoul(cdb->length); 10850 break; 10851 } 10852 case READ_12: 10853 case WRITE_12: { 10854 struct scsi_rw_12 *cdb; 10855 10856 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10857 10858 *lba = scsi_4btoul(cdb->addr); 10859 *len = scsi_4btoul(cdb->length); 10860 break; 10861 } 10862 case WRITE_VERIFY_12: { 10863 struct scsi_write_verify_12 *cdb; 10864 10865 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10866 10867 *lba = scsi_4btoul(cdb->addr); 10868 *len = scsi_4btoul(cdb->length); 10869 break; 10870 } 10871 case READ_16: 10872 case WRITE_16: 10873 case WRITE_ATOMIC_16: { 10874 struct scsi_rw_16 *cdb; 10875 10876 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10877 10878 *lba = scsi_8btou64(cdb->addr); 10879 *len = scsi_4btoul(cdb->length); 10880 break; 10881 } 10882 case WRITE_VERIFY_16: { 10883 struct scsi_write_verify_16 *cdb; 10884 10885 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10886 10887 *lba = scsi_8btou64(cdb->addr); 10888 *len = scsi_4btoul(cdb->length); 10889 break; 10890 } 10891 case WRITE_SAME_10: { 10892 struct scsi_write_same_10 *cdb; 10893 10894 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10895 10896 *lba = scsi_4btoul(cdb->addr); 10897 *len = scsi_2btoul(cdb->length); 10898 break; 10899 } 10900 case WRITE_SAME_16: { 10901 struct scsi_write_same_16 *cdb; 10902 10903 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10904 10905 *lba = scsi_8btou64(cdb->addr); 10906 *len = scsi_4btoul(cdb->length); 10907 break; 10908 } 10909 case VERIFY_10: { 10910 struct scsi_verify_10 *cdb; 10911 10912 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10913 10914 *lba = scsi_4btoul(cdb->addr); 10915 *len = scsi_2btoul(cdb->length); 10916 break; 10917 } 10918 case VERIFY_12: { 10919 struct scsi_verify_12 *cdb; 10920 10921 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10922 10923 *lba = scsi_4btoul(cdb->addr); 10924 *len = scsi_4btoul(cdb->length); 10925 break; 10926 } 10927 case VERIFY_16: { 10928 struct scsi_verify_16 *cdb; 10929 10930 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10931 10932 *lba = scsi_8btou64(cdb->addr); 10933 *len = scsi_4btoul(cdb->length); 10934 break; 10935 } 10936 case UNMAP: { 10937 *lba = 0; 10938 *len = UINT64_MAX; 10939 break; 10940 } 10941 default: 10942 return (1); 10943 break; /* NOTREACHED */ 10944 } 10945 10946 return (0); 10947} 10948 10949static ctl_action 10950ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10951{ 10952 uint64_t endlba1, endlba2; 10953 10954 endlba1 = lba1 + len1 - 1; 10955 endlba2 = lba2 + len2 - 1; 10956 10957 if ((endlba1 < lba2) 10958 || (endlba2 < lba1)) 10959 return (CTL_ACTION_PASS); 10960 else 10961 return (CTL_ACTION_BLOCK); 10962} 10963 10964static int 10965ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10966{ 10967 struct ctl_ptr_len_flags *ptrlen; 10968 struct scsi_unmap_desc *buf, *end, *range; 10969 uint64_t lba; 10970 uint32_t len; 10971 10972 /* If not UNMAP -- go other way. */ 10973 if (io->io_hdr.io_type != CTL_IO_SCSI || 10974 io->scsiio.cdb[0] != UNMAP) 10975 return (CTL_ACTION_ERROR); 10976 10977 /* If UNMAP without data -- block and wait for data. */ 10978 ptrlen = (struct ctl_ptr_len_flags *) 10979 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10980 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10981 ptrlen->ptr == NULL) 10982 return (CTL_ACTION_BLOCK); 10983 10984 /* UNMAP with data -- check for collision. */ 10985 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10986 end = buf + ptrlen->len / sizeof(*buf); 10987 for (range = buf; range < end; range++) { 10988 lba = scsi_8btou64(range->lba); 10989 len = scsi_4btoul(range->length); 10990 if ((lba < lba2 + len2) && (lba + len > lba2)) 10991 return (CTL_ACTION_BLOCK); 10992 } 10993 return (CTL_ACTION_PASS); 10994} 10995 10996static ctl_action 10997ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10998{ 10999 uint64_t lba1, lba2; 11000 uint64_t len1, len2; 11001 int retval; 11002 11003 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11004 return (CTL_ACTION_ERROR); 11005 11006 retval = ctl_extent_check_unmap(io2, lba1, len1); 11007 if (retval != CTL_ACTION_ERROR) 11008 return (retval); 11009 11010 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11011 return (CTL_ACTION_ERROR); 11012 11013 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11014} 11015 11016static ctl_action 11017ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11018 union ctl_io *ooa_io) 11019{ 11020 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11021 ctl_serialize_action *serialize_row; 11022 11023 /* 11024 * The initiator attempted multiple untagged commands at the same 11025 * time. Can't do that. 11026 */ 11027 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11028 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11029 && ((pending_io->io_hdr.nexus.targ_port == 11030 ooa_io->io_hdr.nexus.targ_port) 11031 && (pending_io->io_hdr.nexus.initid.id == 11032 ooa_io->io_hdr.nexus.initid.id)) 11033 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11034 return (CTL_ACTION_OVERLAP); 11035 11036 /* 11037 * The initiator attempted to send multiple tagged commands with 11038 * the same ID. (It's fine if different initiators have the same 11039 * tag ID.) 11040 * 11041 * Even if all of those conditions are true, we don't kill the I/O 11042 * if the command ahead of us has been aborted. We won't end up 11043 * sending it to the FETD, and it's perfectly legal to resend a 11044 * command with the same tag number as long as the previous 11045 * instance of this tag number has been aborted somehow. 11046 */ 11047 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11048 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11049 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11050 && ((pending_io->io_hdr.nexus.targ_port == 11051 ooa_io->io_hdr.nexus.targ_port) 11052 && (pending_io->io_hdr.nexus.initid.id == 11053 ooa_io->io_hdr.nexus.initid.id)) 11054 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11055 return (CTL_ACTION_OVERLAP_TAG); 11056 11057 /* 11058 * If we get a head of queue tag, SAM-3 says that we should 11059 * immediately execute it. 11060 * 11061 * What happens if this command would normally block for some other 11062 * reason? e.g. a request sense with a head of queue tag 11063 * immediately after a write. Normally that would block, but this 11064 * will result in its getting executed immediately... 11065 * 11066 * We currently return "pass" instead of "skip", so we'll end up 11067 * going through the rest of the queue to check for overlapped tags. 11068 * 11069 * XXX KDM check for other types of blockage first?? 11070 */ 11071 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11072 return (CTL_ACTION_PASS); 11073 11074 /* 11075 * Ordered tags have to block until all items ahead of them 11076 * have completed. If we get called with an ordered tag, we always 11077 * block, if something else is ahead of us in the queue. 11078 */ 11079 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11080 return (CTL_ACTION_BLOCK); 11081 11082 /* 11083 * Simple tags get blocked until all head of queue and ordered tags 11084 * ahead of them have completed. I'm lumping untagged commands in 11085 * with simple tags here. XXX KDM is that the right thing to do? 11086 */ 11087 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11088 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11089 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11090 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11091 return (CTL_ACTION_BLOCK); 11092 11093 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11094 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11095 11096 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11097 11098 switch (serialize_row[pending_entry->seridx]) { 11099 case CTL_SER_BLOCK: 11100 return (CTL_ACTION_BLOCK); 11101 case CTL_SER_EXTENT: 11102 return (ctl_extent_check(pending_io, ooa_io)); 11103 case CTL_SER_EXTENTOPT: 11104 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11105 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11106 return (ctl_extent_check(pending_io, ooa_io)); 11107 /* FALLTHROUGH */ 11108 case CTL_SER_PASS: 11109 return (CTL_ACTION_PASS); 11110 case CTL_SER_BLOCKOPT: 11111 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11112 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11113 return (CTL_ACTION_BLOCK); 11114 return (CTL_ACTION_PASS); 11115 case CTL_SER_SKIP: 11116 return (CTL_ACTION_SKIP); 11117 default: 11118 panic("invalid serialization value %d", 11119 serialize_row[pending_entry->seridx]); 11120 } 11121 11122 return (CTL_ACTION_ERROR); 11123} 11124 11125/* 11126 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11127 * Assumptions: 11128 * - pending_io is generally either incoming, or on the blocked queue 11129 * - starting I/O is the I/O we want to start the check with. 11130 */ 11131static ctl_action 11132ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11133 union ctl_io *starting_io) 11134{ 11135 union ctl_io *ooa_io; 11136 ctl_action action; 11137 11138 mtx_assert(&lun->lun_lock, MA_OWNED); 11139 11140 /* 11141 * Run back along the OOA queue, starting with the current 11142 * blocked I/O and going through every I/O before it on the 11143 * queue. If starting_io is NULL, we'll just end up returning 11144 * CTL_ACTION_PASS. 11145 */ 11146 for (ooa_io = starting_io; ooa_io != NULL; 11147 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11148 ooa_links)){ 11149 11150 /* 11151 * This routine just checks to see whether 11152 * cur_blocked is blocked by ooa_io, which is ahead 11153 * of it in the queue. It doesn't queue/dequeue 11154 * cur_blocked. 11155 */ 11156 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11157 switch (action) { 11158 case CTL_ACTION_BLOCK: 11159 case CTL_ACTION_OVERLAP: 11160 case CTL_ACTION_OVERLAP_TAG: 11161 case CTL_ACTION_SKIP: 11162 case CTL_ACTION_ERROR: 11163 return (action); 11164 break; /* NOTREACHED */ 11165 case CTL_ACTION_PASS: 11166 break; 11167 default: 11168 panic("invalid action %d", action); 11169 break; /* NOTREACHED */ 11170 } 11171 } 11172 11173 return (CTL_ACTION_PASS); 11174} 11175 11176/* 11177 * Assumptions: 11178 * - An I/O has just completed, and has been removed from the per-LUN OOA 11179 * queue, so some items on the blocked queue may now be unblocked. 11180 */ 11181static int 11182ctl_check_blocked(struct ctl_lun *lun) 11183{ 11184 union ctl_io *cur_blocked, *next_blocked; 11185 11186 mtx_assert(&lun->lun_lock, MA_OWNED); 11187 11188 /* 11189 * Run forward from the head of the blocked queue, checking each 11190 * entry against the I/Os prior to it on the OOA queue to see if 11191 * there is still any blockage. 11192 * 11193 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11194 * with our removing a variable on it while it is traversing the 11195 * list. 11196 */ 11197 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11198 cur_blocked != NULL; cur_blocked = next_blocked) { 11199 union ctl_io *prev_ooa; 11200 ctl_action action; 11201 11202 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11203 blocked_links); 11204 11205 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11206 ctl_ooaq, ooa_links); 11207 11208 /* 11209 * If cur_blocked happens to be the first item in the OOA 11210 * queue now, prev_ooa will be NULL, and the action 11211 * returned will just be CTL_ACTION_PASS. 11212 */ 11213 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11214 11215 switch (action) { 11216 case CTL_ACTION_BLOCK: 11217 /* Nothing to do here, still blocked */ 11218 break; 11219 case CTL_ACTION_OVERLAP: 11220 case CTL_ACTION_OVERLAP_TAG: 11221 /* 11222 * This shouldn't happen! In theory we've already 11223 * checked this command for overlap... 11224 */ 11225 break; 11226 case CTL_ACTION_PASS: 11227 case CTL_ACTION_SKIP: { 11228 struct ctl_softc *softc; 11229 const struct ctl_cmd_entry *entry; 11230 uint32_t initidx; 11231 int isc_retval; 11232 11233 /* 11234 * The skip case shouldn't happen, this transaction 11235 * should have never made it onto the blocked queue. 11236 */ 11237 /* 11238 * This I/O is no longer blocked, we can remove it 11239 * from the blocked queue. Since this is a TAILQ 11240 * (doubly linked list), we can do O(1) removals 11241 * from any place on the list. 11242 */ 11243 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11244 blocked_links); 11245 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11246 11247 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11248 /* 11249 * Need to send IO back to original side to 11250 * run 11251 */ 11252 union ctl_ha_msg msg_info; 11253 11254 msg_info.hdr.original_sc = 11255 cur_blocked->io_hdr.original_sc; 11256 msg_info.hdr.serializing_sc = cur_blocked; 11257 msg_info.hdr.msg_type = CTL_MSG_R2R; 11258 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11259 &msg_info, sizeof(msg_info), 0)) > 11260 CTL_HA_STATUS_SUCCESS) { 11261 printf("CTL:Check Blocked error from " 11262 "ctl_ha_msg_send %d\n", 11263 isc_retval); 11264 } 11265 break; 11266 } 11267 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11268 softc = control_softc; 11269 11270 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11271 11272 /* 11273 * Check this I/O for LUN state changes that may 11274 * have happened while this command was blocked. 11275 * The LUN state may have been changed by a command 11276 * ahead of us in the queue, so we need to re-check 11277 * for any states that can be caused by SCSI 11278 * commands. 11279 */ 11280 if (ctl_scsiio_lun_check(softc, lun, entry, 11281 &cur_blocked->scsiio) == 0) { 11282 cur_blocked->io_hdr.flags |= 11283 CTL_FLAG_IS_WAS_ON_RTR; 11284 ctl_enqueue_rtr(cur_blocked); 11285 } else 11286 ctl_done(cur_blocked); 11287 break; 11288 } 11289 default: 11290 /* 11291 * This probably shouldn't happen -- we shouldn't 11292 * get CTL_ACTION_ERROR, or anything else. 11293 */ 11294 break; 11295 } 11296 } 11297 11298 return (CTL_RETVAL_COMPLETE); 11299} 11300 11301/* 11302 * This routine (with one exception) checks LUN flags that can be set by 11303 * commands ahead of us in the OOA queue. These flags have to be checked 11304 * when a command initially comes in, and when we pull a command off the 11305 * blocked queue and are preparing to execute it. The reason we have to 11306 * check these flags for commands on the blocked queue is that the LUN 11307 * state may have been changed by a command ahead of us while we're on the 11308 * blocked queue. 11309 * 11310 * Ordering is somewhat important with these checks, so please pay 11311 * careful attention to the placement of any new checks. 11312 */ 11313static int 11314ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11315 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11316{ 11317 int retval; 11318 uint32_t residx; 11319 11320 retval = 0; 11321 11322 mtx_assert(&lun->lun_lock, MA_OWNED); 11323 11324 /* 11325 * If this shelf is a secondary shelf controller, we have to reject 11326 * any media access commands. 11327 */ 11328#if 0 11329 /* No longer needed for HA */ 11330 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11331 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11332 ctl_set_lun_standby(ctsio); 11333 retval = 1; 11334 goto bailout; 11335 } 11336#endif 11337 11338 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11339 if (lun->flags & CTL_LUN_READONLY) { 11340 ctl_set_sense(ctsio, /*current_error*/ 1, 11341 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11342 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11343 retval = 1; 11344 goto bailout; 11345 } 11346 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11347 .eca_and_aen & SCP_SWP) != 0) { 11348 ctl_set_sense(ctsio, /*current_error*/ 1, 11349 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11350 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11351 retval = 1; 11352 goto bailout; 11353 } 11354 } 11355 11356 /* 11357 * Check for a reservation conflict. If this command isn't allowed 11358 * even on reserved LUNs, and if this initiator isn't the one who 11359 * reserved us, reject the command with a reservation conflict. 11360 */ 11361 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11362 if ((lun->flags & CTL_LUN_RESERVED) 11363 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11364 if (lun->res_idx != residx) { 11365 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11366 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11367 retval = 1; 11368 goto bailout; 11369 } 11370 } 11371 11372 if ((lun->flags & CTL_LUN_PR_RESERVED) 11373 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11374 /* 11375 * if we aren't registered or it's a res holder type 11376 * reservation and this isn't the res holder then set a 11377 * conflict. 11378 * NOTE: Commands which might be allowed on write exclusive 11379 * type reservations are checked in the particular command 11380 * for a conflict. Read and SSU are the only ones. 11381 */ 11382 if (!lun->per_res[residx].registered 11383 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11384 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11385 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11386 retval = 1; 11387 goto bailout; 11388 } 11389 11390 } 11391 11392 if ((lun->flags & CTL_LUN_OFFLINE) 11393 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11394 ctl_set_lun_not_ready(ctsio); 11395 retval = 1; 11396 goto bailout; 11397 } 11398 11399 /* 11400 * If the LUN is stopped, see if this particular command is allowed 11401 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11402 */ 11403 if ((lun->flags & CTL_LUN_STOPPED) 11404 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11405 /* "Logical unit not ready, initializing cmd. required" */ 11406 ctl_set_lun_stopped(ctsio); 11407 retval = 1; 11408 goto bailout; 11409 } 11410 11411 if ((lun->flags & CTL_LUN_INOPERABLE) 11412 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11413 /* "Medium format corrupted" */ 11414 ctl_set_medium_format_corrupted(ctsio); 11415 retval = 1; 11416 goto bailout; 11417 } 11418 11419bailout: 11420 return (retval); 11421 11422} 11423 11424static void 11425ctl_failover_io(union ctl_io *io, int have_lock) 11426{ 11427 ctl_set_busy(&io->scsiio); 11428 ctl_done(io); 11429} 11430 11431static void 11432ctl_failover(void) 11433{ 11434 struct ctl_lun *lun; 11435 struct ctl_softc *ctl_softc; 11436 union ctl_io *next_io, *pending_io; 11437 union ctl_io *io; 11438 int lun_idx; 11439 int i; 11440 11441 ctl_softc = control_softc; 11442 11443 mtx_lock(&ctl_softc->ctl_lock); 11444 /* 11445 * Remove any cmds from the other SC from the rtr queue. These 11446 * will obviously only be for LUNs for which we're the primary. 11447 * We can't send status or get/send data for these commands. 11448 * Since they haven't been executed yet, we can just remove them. 11449 * We'll either abort them or delete them below, depending on 11450 * which HA mode we're in. 11451 */ 11452#ifdef notyet 11453 mtx_lock(&ctl_softc->queue_lock); 11454 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11455 io != NULL; io = next_io) { 11456 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11457 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11458 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11459 ctl_io_hdr, links); 11460 } 11461 mtx_unlock(&ctl_softc->queue_lock); 11462#endif 11463 11464 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11465 lun = ctl_softc->ctl_luns[lun_idx]; 11466 if (lun==NULL) 11467 continue; 11468 11469 /* 11470 * Processor LUNs are primary on both sides. 11471 * XXX will this always be true? 11472 */ 11473 if (lun->be_lun->lun_type == T_PROCESSOR) 11474 continue; 11475 11476 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11477 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11478 printf("FAILOVER: primary lun %d\n", lun_idx); 11479 /* 11480 * Remove all commands from the other SC. First from the 11481 * blocked queue then from the ooa queue. Once we have 11482 * removed them. Call ctl_check_blocked to see if there 11483 * is anything that can run. 11484 */ 11485 for (io = (union ctl_io *)TAILQ_FIRST( 11486 &lun->blocked_queue); io != NULL; io = next_io) { 11487 11488 next_io = (union ctl_io *)TAILQ_NEXT( 11489 &io->io_hdr, blocked_links); 11490 11491 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11492 TAILQ_REMOVE(&lun->blocked_queue, 11493 &io->io_hdr,blocked_links); 11494 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11495 TAILQ_REMOVE(&lun->ooa_queue, 11496 &io->io_hdr, ooa_links); 11497 11498 ctl_free_io(io); 11499 } 11500 } 11501 11502 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11503 io != NULL; io = next_io) { 11504 11505 next_io = (union ctl_io *)TAILQ_NEXT( 11506 &io->io_hdr, ooa_links); 11507 11508 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11509 11510 TAILQ_REMOVE(&lun->ooa_queue, 11511 &io->io_hdr, 11512 ooa_links); 11513 11514 ctl_free_io(io); 11515 } 11516 } 11517 ctl_check_blocked(lun); 11518 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11519 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11520 11521 printf("FAILOVER: primary lun %d\n", lun_idx); 11522 /* 11523 * Abort all commands from the other SC. We can't 11524 * send status back for them now. These should get 11525 * cleaned up when they are completed or come out 11526 * for a datamove operation. 11527 */ 11528 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11529 io != NULL; io = next_io) { 11530 next_io = (union ctl_io *)TAILQ_NEXT( 11531 &io->io_hdr, ooa_links); 11532 11533 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11534 io->io_hdr.flags |= CTL_FLAG_ABORT; 11535 } 11536 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11537 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11538 11539 printf("FAILOVER: secondary lun %d\n", lun_idx); 11540 11541 lun->flags |= CTL_LUN_PRIMARY_SC; 11542 11543 /* 11544 * We send all I/O that was sent to this controller 11545 * and redirected to the other side back with 11546 * busy status, and have the initiator retry it. 11547 * Figuring out how much data has been transferred, 11548 * etc. and picking up where we left off would be 11549 * very tricky. 11550 * 11551 * XXX KDM need to remove I/O from the blocked 11552 * queue as well! 11553 */ 11554 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11555 &lun->ooa_queue); pending_io != NULL; 11556 pending_io = next_io) { 11557 11558 next_io = (union ctl_io *)TAILQ_NEXT( 11559 &pending_io->io_hdr, ooa_links); 11560 11561 pending_io->io_hdr.flags &= 11562 ~CTL_FLAG_SENT_2OTHER_SC; 11563 11564 if (pending_io->io_hdr.flags & 11565 CTL_FLAG_IO_ACTIVE) { 11566 pending_io->io_hdr.flags |= 11567 CTL_FLAG_FAILOVER; 11568 } else { 11569 ctl_set_busy(&pending_io->scsiio); 11570 ctl_done(pending_io); 11571 } 11572 } 11573 11574 /* 11575 * Build Unit Attention 11576 */ 11577 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11578 lun->pending_ua[i] |= 11579 CTL_UA_ASYM_ACC_CHANGE; 11580 } 11581 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11582 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11583 printf("FAILOVER: secondary lun %d\n", lun_idx); 11584 /* 11585 * if the first io on the OOA is not on the RtR queue 11586 * add it. 11587 */ 11588 lun->flags |= CTL_LUN_PRIMARY_SC; 11589 11590 pending_io = (union ctl_io *)TAILQ_FIRST( 11591 &lun->ooa_queue); 11592 if (pending_io==NULL) { 11593 printf("Nothing on OOA queue\n"); 11594 continue; 11595 } 11596 11597 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11598 if ((pending_io->io_hdr.flags & 11599 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11600 pending_io->io_hdr.flags |= 11601 CTL_FLAG_IS_WAS_ON_RTR; 11602 ctl_enqueue_rtr(pending_io); 11603 } 11604#if 0 11605 else 11606 { 11607 printf("Tag 0x%04x is running\n", 11608 pending_io->scsiio.tag_num); 11609 } 11610#endif 11611 11612 next_io = (union ctl_io *)TAILQ_NEXT( 11613 &pending_io->io_hdr, ooa_links); 11614 for (pending_io=next_io; pending_io != NULL; 11615 pending_io = next_io) { 11616 pending_io->io_hdr.flags &= 11617 ~CTL_FLAG_SENT_2OTHER_SC; 11618 next_io = (union ctl_io *)TAILQ_NEXT( 11619 &pending_io->io_hdr, ooa_links); 11620 if (pending_io->io_hdr.flags & 11621 CTL_FLAG_IS_WAS_ON_RTR) { 11622#if 0 11623 printf("Tag 0x%04x is running\n", 11624 pending_io->scsiio.tag_num); 11625#endif 11626 continue; 11627 } 11628 11629 switch (ctl_check_ooa(lun, pending_io, 11630 (union ctl_io *)TAILQ_PREV( 11631 &pending_io->io_hdr, ctl_ooaq, 11632 ooa_links))) { 11633 11634 case CTL_ACTION_BLOCK: 11635 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11636 &pending_io->io_hdr, 11637 blocked_links); 11638 pending_io->io_hdr.flags |= 11639 CTL_FLAG_BLOCKED; 11640 break; 11641 case CTL_ACTION_PASS: 11642 case CTL_ACTION_SKIP: 11643 pending_io->io_hdr.flags |= 11644 CTL_FLAG_IS_WAS_ON_RTR; 11645 ctl_enqueue_rtr(pending_io); 11646 break; 11647 case CTL_ACTION_OVERLAP: 11648 ctl_set_overlapped_cmd( 11649 (struct ctl_scsiio *)pending_io); 11650 ctl_done(pending_io); 11651 break; 11652 case CTL_ACTION_OVERLAP_TAG: 11653 ctl_set_overlapped_tag( 11654 (struct ctl_scsiio *)pending_io, 11655 pending_io->scsiio.tag_num & 0xff); 11656 ctl_done(pending_io); 11657 break; 11658 case CTL_ACTION_ERROR: 11659 default: 11660 ctl_set_internal_failure( 11661 (struct ctl_scsiio *)pending_io, 11662 0, // sks_valid 11663 0); //retry count 11664 ctl_done(pending_io); 11665 break; 11666 } 11667 } 11668 11669 /* 11670 * Build Unit Attention 11671 */ 11672 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11673 lun->pending_ua[i] |= 11674 CTL_UA_ASYM_ACC_CHANGE; 11675 } 11676 } else { 11677 panic("Unhandled HA mode failover, LUN flags = %#x, " 11678 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11679 } 11680 } 11681 ctl_pause_rtr = 0; 11682 mtx_unlock(&ctl_softc->ctl_lock); 11683} 11684 11685static int 11686ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11687{ 11688 struct ctl_lun *lun; 11689 const struct ctl_cmd_entry *entry; 11690 uint32_t initidx, targ_lun; 11691 int retval; 11692 11693 retval = 0; 11694 11695 lun = NULL; 11696 11697 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11698 if ((targ_lun < CTL_MAX_LUNS) 11699 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11700 lun = ctl_softc->ctl_luns[targ_lun]; 11701 /* 11702 * If the LUN is invalid, pretend that it doesn't exist. 11703 * It will go away as soon as all pending I/O has been 11704 * completed. 11705 */ 11706 if (lun->flags & CTL_LUN_DISABLED) { 11707 lun = NULL; 11708 } else { 11709 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11710 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11711 lun->be_lun; 11712 if (lun->be_lun->lun_type == T_PROCESSOR) { 11713 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11714 } 11715 11716 /* 11717 * Every I/O goes into the OOA queue for a 11718 * particular LUN, and stays there until completion. 11719 */ 11720 mtx_lock(&lun->lun_lock); 11721 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11722 ooa_links); 11723 } 11724 } else { 11725 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11726 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11727 } 11728 11729 /* Get command entry and return error if it is unsuppotyed. */ 11730 entry = ctl_validate_command(ctsio); 11731 if (entry == NULL) { 11732 if (lun) 11733 mtx_unlock(&lun->lun_lock); 11734 return (retval); 11735 } 11736 11737 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11738 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11739 11740 /* 11741 * Check to see whether we can send this command to LUNs that don't 11742 * exist. This should pretty much only be the case for inquiry 11743 * and request sense. Further checks, below, really require having 11744 * a LUN, so we can't really check the command anymore. Just put 11745 * it on the rtr queue. 11746 */ 11747 if (lun == NULL) { 11748 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11749 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11750 ctl_enqueue_rtr((union ctl_io *)ctsio); 11751 return (retval); 11752 } 11753 11754 ctl_set_unsupported_lun(ctsio); 11755 ctl_done((union ctl_io *)ctsio); 11756 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11757 return (retval); 11758 } else { 11759 /* 11760 * Make sure we support this particular command on this LUN. 11761 * e.g., we don't support writes to the control LUN. 11762 */ 11763 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11764 mtx_unlock(&lun->lun_lock); 11765 ctl_set_invalid_opcode(ctsio); 11766 ctl_done((union ctl_io *)ctsio); 11767 return (retval); 11768 } 11769 } 11770 11771 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11772 11773#ifdef CTL_WITH_CA 11774 /* 11775 * If we've got a request sense, it'll clear the contingent 11776 * allegiance condition. Otherwise, if we have a CA condition for 11777 * this initiator, clear it, because it sent down a command other 11778 * than request sense. 11779 */ 11780 if ((ctsio->cdb[0] != REQUEST_SENSE) 11781 && (ctl_is_set(lun->have_ca, initidx))) 11782 ctl_clear_mask(lun->have_ca, initidx); 11783#endif 11784 11785 /* 11786 * If the command has this flag set, it handles its own unit 11787 * attention reporting, we shouldn't do anything. Otherwise we 11788 * check for any pending unit attentions, and send them back to the 11789 * initiator. We only do this when a command initially comes in, 11790 * not when we pull it off the blocked queue. 11791 * 11792 * According to SAM-3, section 5.3.2, the order that things get 11793 * presented back to the host is basically unit attentions caused 11794 * by some sort of reset event, busy status, reservation conflicts 11795 * or task set full, and finally any other status. 11796 * 11797 * One issue here is that some of the unit attentions we report 11798 * don't fall into the "reset" category (e.g. "reported luns data 11799 * has changed"). So reporting it here, before the reservation 11800 * check, may be technically wrong. I guess the only thing to do 11801 * would be to check for and report the reset events here, and then 11802 * check for the other unit attention types after we check for a 11803 * reservation conflict. 11804 * 11805 * XXX KDM need to fix this 11806 */ 11807 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11808 ctl_ua_type ua_type; 11809 11810 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11811 scsi_sense_data_type sense_format; 11812 11813 if (lun != NULL) 11814 sense_format = (lun->flags & 11815 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11816 SSD_TYPE_FIXED; 11817 else 11818 sense_format = SSD_TYPE_FIXED; 11819 11820 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11821 &ctsio->sense_data, sense_format); 11822 if (ua_type != CTL_UA_NONE) { 11823 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11824 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11825 CTL_AUTOSENSE; 11826 ctsio->sense_len = SSD_FULL_SIZE; 11827 mtx_unlock(&lun->lun_lock); 11828 ctl_done((union ctl_io *)ctsio); 11829 return (retval); 11830 } 11831 } 11832 } 11833 11834 11835 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11836 mtx_unlock(&lun->lun_lock); 11837 ctl_done((union ctl_io *)ctsio); 11838 return (retval); 11839 } 11840 11841 /* 11842 * XXX CHD this is where we want to send IO to other side if 11843 * this LUN is secondary on this SC. We will need to make a copy 11844 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11845 * the copy we send as FROM_OTHER. 11846 * We also need to stuff the address of the original IO so we can 11847 * find it easily. Something similar will need be done on the other 11848 * side so when we are done we can find the copy. 11849 */ 11850 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11851 union ctl_ha_msg msg_info; 11852 int isc_retval; 11853 11854 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11855 11856 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11857 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11858#if 0 11859 printf("1. ctsio %p\n", ctsio); 11860#endif 11861 msg_info.hdr.serializing_sc = NULL; 11862 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11863 msg_info.scsi.tag_num = ctsio->tag_num; 11864 msg_info.scsi.tag_type = ctsio->tag_type; 11865 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11866 11867 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11868 11869 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11870 (void *)&msg_info, sizeof(msg_info), 0)) > 11871 CTL_HA_STATUS_SUCCESS) { 11872 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11873 isc_retval); 11874 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11875 } else { 11876#if 0 11877 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11878#endif 11879 } 11880 11881 /* 11882 * XXX KDM this I/O is off the incoming queue, but hasn't 11883 * been inserted on any other queue. We may need to come 11884 * up with a holding queue while we wait for serialization 11885 * so that we have an idea of what we're waiting for from 11886 * the other side. 11887 */ 11888 mtx_unlock(&lun->lun_lock); 11889 return (retval); 11890 } 11891 11892 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11893 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11894 ctl_ooaq, ooa_links))) { 11895 case CTL_ACTION_BLOCK: 11896 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11897 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11898 blocked_links); 11899 mtx_unlock(&lun->lun_lock); 11900 return (retval); 11901 case CTL_ACTION_PASS: 11902 case CTL_ACTION_SKIP: 11903 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11904 mtx_unlock(&lun->lun_lock); 11905 ctl_enqueue_rtr((union ctl_io *)ctsio); 11906 break; 11907 case CTL_ACTION_OVERLAP: 11908 mtx_unlock(&lun->lun_lock); 11909 ctl_set_overlapped_cmd(ctsio); 11910 ctl_done((union ctl_io *)ctsio); 11911 break; 11912 case CTL_ACTION_OVERLAP_TAG: 11913 mtx_unlock(&lun->lun_lock); 11914 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11915 ctl_done((union ctl_io *)ctsio); 11916 break; 11917 case CTL_ACTION_ERROR: 11918 default: 11919 mtx_unlock(&lun->lun_lock); 11920 ctl_set_internal_failure(ctsio, 11921 /*sks_valid*/ 0, 11922 /*retry_count*/ 0); 11923 ctl_done((union ctl_io *)ctsio); 11924 break; 11925 } 11926 return (retval); 11927} 11928 11929const struct ctl_cmd_entry * 11930ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11931{ 11932 const struct ctl_cmd_entry *entry; 11933 int service_action; 11934 11935 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11936 if (sa) 11937 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11938 if (entry->flags & CTL_CMD_FLAG_SA5) { 11939 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11940 entry = &((const struct ctl_cmd_entry *) 11941 entry->execute)[service_action]; 11942 } 11943 return (entry); 11944} 11945 11946const struct ctl_cmd_entry * 11947ctl_validate_command(struct ctl_scsiio *ctsio) 11948{ 11949 const struct ctl_cmd_entry *entry; 11950 int i, sa; 11951 uint8_t diff; 11952 11953 entry = ctl_get_cmd_entry(ctsio, &sa); 11954 if (entry->execute == NULL) { 11955 if (sa) 11956 ctl_set_invalid_field(ctsio, 11957 /*sks_valid*/ 1, 11958 /*command*/ 1, 11959 /*field*/ 1, 11960 /*bit_valid*/ 1, 11961 /*bit*/ 4); 11962 else 11963 ctl_set_invalid_opcode(ctsio); 11964 ctl_done((union ctl_io *)ctsio); 11965 return (NULL); 11966 } 11967 KASSERT(entry->length > 0, 11968 ("Not defined length for command 0x%02x/0x%02x", 11969 ctsio->cdb[0], ctsio->cdb[1])); 11970 for (i = 1; i < entry->length; i++) { 11971 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11972 if (diff == 0) 11973 continue; 11974 ctl_set_invalid_field(ctsio, 11975 /*sks_valid*/ 1, 11976 /*command*/ 1, 11977 /*field*/ i, 11978 /*bit_valid*/ 1, 11979 /*bit*/ fls(diff) - 1); 11980 ctl_done((union ctl_io *)ctsio); 11981 return (NULL); 11982 } 11983 return (entry); 11984} 11985 11986static int 11987ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11988{ 11989 11990 switch (lun_type) { 11991 case T_PROCESSOR: 11992 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11993 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11994 return (0); 11995 break; 11996 case T_DIRECT: 11997 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11998 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11999 return (0); 12000 break; 12001 default: 12002 return (0); 12003 } 12004 return (1); 12005} 12006 12007static int 12008ctl_scsiio(struct ctl_scsiio *ctsio) 12009{ 12010 int retval; 12011 const struct ctl_cmd_entry *entry; 12012 12013 retval = CTL_RETVAL_COMPLETE; 12014 12015 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12016 12017 entry = ctl_get_cmd_entry(ctsio, NULL); 12018 12019 /* 12020 * If this I/O has been aborted, just send it straight to 12021 * ctl_done() without executing it. 12022 */ 12023 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12024 ctl_done((union ctl_io *)ctsio); 12025 goto bailout; 12026 } 12027 12028 /* 12029 * All the checks should have been handled by ctl_scsiio_precheck(). 12030 * We should be clear now to just execute the I/O. 12031 */ 12032 retval = entry->execute(ctsio); 12033 12034bailout: 12035 return (retval); 12036} 12037 12038/* 12039 * Since we only implement one target right now, a bus reset simply resets 12040 * our single target. 12041 */ 12042static int 12043ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12044{ 12045 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12046} 12047 12048static int 12049ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12050 ctl_ua_type ua_type) 12051{ 12052 struct ctl_lun *lun; 12053 int retval; 12054 12055 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12056 union ctl_ha_msg msg_info; 12057 12058 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12059 msg_info.hdr.nexus = io->io_hdr.nexus; 12060 if (ua_type==CTL_UA_TARG_RESET) 12061 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12062 else 12063 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12064 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12065 msg_info.hdr.original_sc = NULL; 12066 msg_info.hdr.serializing_sc = NULL; 12067 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12068 (void *)&msg_info, sizeof(msg_info), 0)) { 12069 } 12070 } 12071 retval = 0; 12072 12073 mtx_lock(&ctl_softc->ctl_lock); 12074 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12075 retval += ctl_lun_reset(lun, io, ua_type); 12076 mtx_unlock(&ctl_softc->ctl_lock); 12077 12078 return (retval); 12079} 12080 12081/* 12082 * The LUN should always be set. The I/O is optional, and is used to 12083 * distinguish between I/Os sent by this initiator, and by other 12084 * initiators. We set unit attention for initiators other than this one. 12085 * SAM-3 is vague on this point. It does say that a unit attention should 12086 * be established for other initiators when a LUN is reset (see section 12087 * 5.7.3), but it doesn't specifically say that the unit attention should 12088 * be established for this particular initiator when a LUN is reset. Here 12089 * is the relevant text, from SAM-3 rev 8: 12090 * 12091 * 5.7.2 When a SCSI initiator port aborts its own tasks 12092 * 12093 * When a SCSI initiator port causes its own task(s) to be aborted, no 12094 * notification that the task(s) have been aborted shall be returned to 12095 * the SCSI initiator port other than the completion response for the 12096 * command or task management function action that caused the task(s) to 12097 * be aborted and notification(s) associated with related effects of the 12098 * action (e.g., a reset unit attention condition). 12099 * 12100 * XXX KDM for now, we're setting unit attention for all initiators. 12101 */ 12102static int 12103ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12104{ 12105 union ctl_io *xio; 12106#if 0 12107 uint32_t initindex; 12108#endif 12109 int i; 12110 12111 mtx_lock(&lun->lun_lock); 12112 /* 12113 * Run through the OOA queue and abort each I/O. 12114 */ 12115#if 0 12116 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12117#endif 12118 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12119 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12120 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12121 } 12122 12123 /* 12124 * This version sets unit attention for every 12125 */ 12126#if 0 12127 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12128 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12129 if (initindex == i) 12130 continue; 12131 lun->pending_ua[i] |= ua_type; 12132 } 12133#endif 12134 12135 /* 12136 * A reset (any kind, really) clears reservations established with 12137 * RESERVE/RELEASE. It does not clear reservations established 12138 * with PERSISTENT RESERVE OUT, but we don't support that at the 12139 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12140 * reservations made with the RESERVE/RELEASE commands, because 12141 * those commands are obsolete in SPC-3. 12142 */ 12143 lun->flags &= ~CTL_LUN_RESERVED; 12144 12145 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12146#ifdef CTL_WITH_CA 12147 ctl_clear_mask(lun->have_ca, i); 12148#endif 12149 lun->pending_ua[i] |= ua_type; 12150 } 12151 mtx_unlock(&lun->lun_lock); 12152 12153 return (0); 12154} 12155 12156static void 12157ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12158 int other_sc) 12159{ 12160 union ctl_io *xio; 12161 12162 mtx_assert(&lun->lun_lock, MA_OWNED); 12163 12164 /* 12165 * Run through the OOA queue and attempt to find the given I/O. 12166 * The target port, initiator ID, tag type and tag number have to 12167 * match the values that we got from the initiator. If we have an 12168 * untagged command to abort, simply abort the first untagged command 12169 * we come to. We only allow one untagged command at a time of course. 12170 */ 12171 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12172 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12173 12174 if ((targ_port == UINT32_MAX || 12175 targ_port == xio->io_hdr.nexus.targ_port) && 12176 (init_id == UINT32_MAX || 12177 init_id == xio->io_hdr.nexus.initid.id)) { 12178 if (targ_port != xio->io_hdr.nexus.targ_port || 12179 init_id != xio->io_hdr.nexus.initid.id) 12180 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12181 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12182 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12183 union ctl_ha_msg msg_info; 12184 12185 msg_info.hdr.nexus = xio->io_hdr.nexus; 12186 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12187 msg_info.task.tag_num = xio->scsiio.tag_num; 12188 msg_info.task.tag_type = xio->scsiio.tag_type; 12189 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12190 msg_info.hdr.original_sc = NULL; 12191 msg_info.hdr.serializing_sc = NULL; 12192 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12193 (void *)&msg_info, sizeof(msg_info), 0); 12194 } 12195 } 12196 } 12197} 12198 12199static int 12200ctl_abort_task_set(union ctl_io *io) 12201{ 12202 struct ctl_softc *softc = control_softc; 12203 struct ctl_lun *lun; 12204 uint32_t targ_lun; 12205 12206 /* 12207 * Look up the LUN. 12208 */ 12209 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12210 mtx_lock(&softc->ctl_lock); 12211 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12212 lun = softc->ctl_luns[targ_lun]; 12213 else { 12214 mtx_unlock(&softc->ctl_lock); 12215 return (1); 12216 } 12217 12218 mtx_lock(&lun->lun_lock); 12219 mtx_unlock(&softc->ctl_lock); 12220 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12221 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12222 io->io_hdr.nexus.initid.id, 12223 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12224 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12225 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12226 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12227 } 12228 mtx_unlock(&lun->lun_lock); 12229 return (0); 12230} 12231 12232static int 12233ctl_i_t_nexus_reset(union ctl_io *io) 12234{ 12235 struct ctl_softc *softc = control_softc; 12236 struct ctl_lun *lun; 12237 uint32_t initindex, residx; 12238 12239 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12240 residx = ctl_get_resindex(&io->io_hdr.nexus); 12241 mtx_lock(&softc->ctl_lock); 12242 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12243 mtx_lock(&lun->lun_lock); 12244 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12245 io->io_hdr.nexus.initid.id, 12246 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12247#ifdef CTL_WITH_CA 12248 ctl_clear_mask(lun->have_ca, initindex); 12249#endif 12250 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12251 lun->flags &= ~CTL_LUN_RESERVED; 12252 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12253 mtx_unlock(&lun->lun_lock); 12254 } 12255 mtx_unlock(&softc->ctl_lock); 12256 return (0); 12257} 12258 12259static int 12260ctl_abort_task(union ctl_io *io) 12261{ 12262 union ctl_io *xio; 12263 struct ctl_lun *lun; 12264 struct ctl_softc *ctl_softc; 12265#if 0 12266 struct sbuf sb; 12267 char printbuf[128]; 12268#endif 12269 int found; 12270 uint32_t targ_lun; 12271 12272 ctl_softc = control_softc; 12273 found = 0; 12274 12275 /* 12276 * Look up the LUN. 12277 */ 12278 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12279 mtx_lock(&ctl_softc->ctl_lock); 12280 if ((targ_lun < CTL_MAX_LUNS) 12281 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12282 lun = ctl_softc->ctl_luns[targ_lun]; 12283 else { 12284 mtx_unlock(&ctl_softc->ctl_lock); 12285 return (1); 12286 } 12287 12288#if 0 12289 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12290 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12291#endif 12292 12293 mtx_lock(&lun->lun_lock); 12294 mtx_unlock(&ctl_softc->ctl_lock); 12295 /* 12296 * Run through the OOA queue and attempt to find the given I/O. 12297 * The target port, initiator ID, tag type and tag number have to 12298 * match the values that we got from the initiator. If we have an 12299 * untagged command to abort, simply abort the first untagged command 12300 * we come to. We only allow one untagged command at a time of course. 12301 */ 12302#if 0 12303 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12304#endif 12305 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12306 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12307#if 0 12308 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12309 12310 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12311 lun->lun, xio->scsiio.tag_num, 12312 xio->scsiio.tag_type, 12313 (xio->io_hdr.blocked_links.tqe_prev 12314 == NULL) ? "" : " BLOCKED", 12315 (xio->io_hdr.flags & 12316 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12317 (xio->io_hdr.flags & 12318 CTL_FLAG_ABORT) ? " ABORT" : "", 12319 (xio->io_hdr.flags & 12320 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12321 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12322 sbuf_finish(&sb); 12323 printf("%s\n", sbuf_data(&sb)); 12324#endif 12325 12326 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12327 && (xio->io_hdr.nexus.initid.id == 12328 io->io_hdr.nexus.initid.id)) { 12329 /* 12330 * If the abort says that the task is untagged, the 12331 * task in the queue must be untagged. Otherwise, 12332 * we just check to see whether the tag numbers 12333 * match. This is because the QLogic firmware 12334 * doesn't pass back the tag type in an abort 12335 * request. 12336 */ 12337#if 0 12338 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12339 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12340 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12341#endif 12342 /* 12343 * XXX KDM we've got problems with FC, because it 12344 * doesn't send down a tag type with aborts. So we 12345 * can only really go by the tag number... 12346 * This may cause problems with parallel SCSI. 12347 * Need to figure that out!! 12348 */ 12349 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12350 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12351 found = 1; 12352 if ((io->io_hdr.flags & 12353 CTL_FLAG_FROM_OTHER_SC) == 0 && 12354 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12355 union ctl_ha_msg msg_info; 12356 12357 io->io_hdr.flags |= 12358 CTL_FLAG_SENT_2OTHER_SC; 12359 msg_info.hdr.nexus = io->io_hdr.nexus; 12360 msg_info.task.task_action = 12361 CTL_TASK_ABORT_TASK; 12362 msg_info.task.tag_num = 12363 io->taskio.tag_num; 12364 msg_info.task.tag_type = 12365 io->taskio.tag_type; 12366 msg_info.hdr.msg_type = 12367 CTL_MSG_MANAGE_TASKS; 12368 msg_info.hdr.original_sc = NULL; 12369 msg_info.hdr.serializing_sc = NULL; 12370#if 0 12371 printf("Sent Abort to other side\n"); 12372#endif 12373 if (CTL_HA_STATUS_SUCCESS != 12374 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12375 (void *)&msg_info, 12376 sizeof(msg_info), 0)) { 12377 } 12378 } 12379#if 0 12380 printf("ctl_abort_task: found I/O to abort\n"); 12381#endif 12382 break; 12383 } 12384 } 12385 } 12386 mtx_unlock(&lun->lun_lock); 12387 12388 if (found == 0) { 12389 /* 12390 * This isn't really an error. It's entirely possible for 12391 * the abort and command completion to cross on the wire. 12392 * This is more of an informative/diagnostic error. 12393 */ 12394#if 0 12395 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12396 "%d:%d:%d:%d tag %d type %d\n", 12397 io->io_hdr.nexus.initid.id, 12398 io->io_hdr.nexus.targ_port, 12399 io->io_hdr.nexus.targ_target.id, 12400 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12401 io->taskio.tag_type); 12402#endif 12403 } 12404 return (0); 12405} 12406 12407static void 12408ctl_run_task(union ctl_io *io) 12409{ 12410 struct ctl_softc *ctl_softc = control_softc; 12411 int retval = 1; 12412 const char *task_desc; 12413 12414 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12415 12416 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12417 ("ctl_run_task: Unextected io_type %d\n", 12418 io->io_hdr.io_type)); 12419 12420 task_desc = ctl_scsi_task_string(&io->taskio); 12421 if (task_desc != NULL) { 12422#ifdef NEEDTOPORT 12423 csevent_log(CSC_CTL | CSC_SHELF_SW | 12424 CTL_TASK_REPORT, 12425 csevent_LogType_Trace, 12426 csevent_Severity_Information, 12427 csevent_AlertLevel_Green, 12428 csevent_FRU_Firmware, 12429 csevent_FRU_Unknown, 12430 "CTL: received task: %s",task_desc); 12431#endif 12432 } else { 12433#ifdef NEEDTOPORT 12434 csevent_log(CSC_CTL | CSC_SHELF_SW | 12435 CTL_TASK_REPORT, 12436 csevent_LogType_Trace, 12437 csevent_Severity_Information, 12438 csevent_AlertLevel_Green, 12439 csevent_FRU_Firmware, 12440 csevent_FRU_Unknown, 12441 "CTL: received unknown task " 12442 "type: %d (%#x)", 12443 io->taskio.task_action, 12444 io->taskio.task_action); 12445#endif 12446 } 12447 switch (io->taskio.task_action) { 12448 case CTL_TASK_ABORT_TASK: 12449 retval = ctl_abort_task(io); 12450 break; 12451 case CTL_TASK_ABORT_TASK_SET: 12452 case CTL_TASK_CLEAR_TASK_SET: 12453 retval = ctl_abort_task_set(io); 12454 break; 12455 case CTL_TASK_CLEAR_ACA: 12456 break; 12457 case CTL_TASK_I_T_NEXUS_RESET: 12458 retval = ctl_i_t_nexus_reset(io); 12459 break; 12460 case CTL_TASK_LUN_RESET: { 12461 struct ctl_lun *lun; 12462 uint32_t targ_lun; 12463 12464 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12465 mtx_lock(&ctl_softc->ctl_lock); 12466 if ((targ_lun < CTL_MAX_LUNS) 12467 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12468 lun = ctl_softc->ctl_luns[targ_lun]; 12469 else { 12470 mtx_unlock(&ctl_softc->ctl_lock); 12471 retval = 1; 12472 break; 12473 } 12474 12475 if (!(io->io_hdr.flags & 12476 CTL_FLAG_FROM_OTHER_SC)) { 12477 union ctl_ha_msg msg_info; 12478 12479 io->io_hdr.flags |= 12480 CTL_FLAG_SENT_2OTHER_SC; 12481 msg_info.hdr.msg_type = 12482 CTL_MSG_MANAGE_TASKS; 12483 msg_info.hdr.nexus = io->io_hdr.nexus; 12484 msg_info.task.task_action = 12485 CTL_TASK_LUN_RESET; 12486 msg_info.hdr.original_sc = NULL; 12487 msg_info.hdr.serializing_sc = NULL; 12488 if (CTL_HA_STATUS_SUCCESS != 12489 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12490 (void *)&msg_info, 12491 sizeof(msg_info), 0)) { 12492 } 12493 } 12494 12495 retval = ctl_lun_reset(lun, io, 12496 CTL_UA_LUN_RESET); 12497 mtx_unlock(&ctl_softc->ctl_lock); 12498 break; 12499 } 12500 case CTL_TASK_TARGET_RESET: 12501 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12502 break; 12503 case CTL_TASK_BUS_RESET: 12504 retval = ctl_bus_reset(ctl_softc, io); 12505 break; 12506 case CTL_TASK_PORT_LOGIN: 12507 break; 12508 case CTL_TASK_PORT_LOGOUT: 12509 break; 12510 default: 12511 printf("ctl_run_task: got unknown task management event %d\n", 12512 io->taskio.task_action); 12513 break; 12514 } 12515 if (retval == 0) 12516 io->io_hdr.status = CTL_SUCCESS; 12517 else 12518 io->io_hdr.status = CTL_ERROR; 12519 ctl_done(io); 12520} 12521 12522/* 12523 * For HA operation. Handle commands that come in from the other 12524 * controller. 12525 */ 12526static void 12527ctl_handle_isc(union ctl_io *io) 12528{ 12529 int free_io; 12530 struct ctl_lun *lun; 12531 struct ctl_softc *ctl_softc; 12532 uint32_t targ_lun; 12533 12534 ctl_softc = control_softc; 12535 12536 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12537 lun = ctl_softc->ctl_luns[targ_lun]; 12538 12539 switch (io->io_hdr.msg_type) { 12540 case CTL_MSG_SERIALIZE: 12541 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12542 break; 12543 case CTL_MSG_R2R: { 12544 const struct ctl_cmd_entry *entry; 12545 12546 /* 12547 * This is only used in SER_ONLY mode. 12548 */ 12549 free_io = 0; 12550 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12551 mtx_lock(&lun->lun_lock); 12552 if (ctl_scsiio_lun_check(ctl_softc, lun, 12553 entry, (struct ctl_scsiio *)io) != 0) { 12554 mtx_unlock(&lun->lun_lock); 12555 ctl_done(io); 12556 break; 12557 } 12558 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12559 mtx_unlock(&lun->lun_lock); 12560 ctl_enqueue_rtr(io); 12561 break; 12562 } 12563 case CTL_MSG_FINISH_IO: 12564 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12565 free_io = 0; 12566 ctl_done(io); 12567 } else { 12568 free_io = 1; 12569 mtx_lock(&lun->lun_lock); 12570 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12571 ooa_links); 12572 ctl_check_blocked(lun); 12573 mtx_unlock(&lun->lun_lock); 12574 } 12575 break; 12576 case CTL_MSG_PERS_ACTION: 12577 ctl_hndl_per_res_out_on_other_sc( 12578 (union ctl_ha_msg *)&io->presio.pr_msg); 12579 free_io = 1; 12580 break; 12581 case CTL_MSG_BAD_JUJU: 12582 free_io = 0; 12583 ctl_done(io); 12584 break; 12585 case CTL_MSG_DATAMOVE: 12586 /* Only used in XFER mode */ 12587 free_io = 0; 12588 ctl_datamove_remote(io); 12589 break; 12590 case CTL_MSG_DATAMOVE_DONE: 12591 /* Only used in XFER mode */ 12592 free_io = 0; 12593 io->scsiio.be_move_done(io); 12594 break; 12595 default: 12596 free_io = 1; 12597 printf("%s: Invalid message type %d\n", 12598 __func__, io->io_hdr.msg_type); 12599 break; 12600 } 12601 if (free_io) 12602 ctl_free_io(io); 12603 12604} 12605 12606 12607/* 12608 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12609 * there is no match. 12610 */ 12611static ctl_lun_error_pattern 12612ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12613{ 12614 const struct ctl_cmd_entry *entry; 12615 ctl_lun_error_pattern filtered_pattern, pattern; 12616 12617 pattern = desc->error_pattern; 12618 12619 /* 12620 * XXX KDM we need more data passed into this function to match a 12621 * custom pattern, and we actually need to implement custom pattern 12622 * matching. 12623 */ 12624 if (pattern & CTL_LUN_PAT_CMD) 12625 return (CTL_LUN_PAT_CMD); 12626 12627 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12628 return (CTL_LUN_PAT_ANY); 12629 12630 entry = ctl_get_cmd_entry(ctsio, NULL); 12631 12632 filtered_pattern = entry->pattern & pattern; 12633 12634 /* 12635 * If the user requested specific flags in the pattern (e.g. 12636 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12637 * flags. 12638 * 12639 * If the user did not specify any flags, it doesn't matter whether 12640 * or not the command supports the flags. 12641 */ 12642 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12643 (pattern & ~CTL_LUN_PAT_MASK)) 12644 return (CTL_LUN_PAT_NONE); 12645 12646 /* 12647 * If the user asked for a range check, see if the requested LBA 12648 * range overlaps with this command's LBA range. 12649 */ 12650 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12651 uint64_t lba1; 12652 uint64_t len1; 12653 ctl_action action; 12654 int retval; 12655 12656 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12657 if (retval != 0) 12658 return (CTL_LUN_PAT_NONE); 12659 12660 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12661 desc->lba_range.len); 12662 /* 12663 * A "pass" means that the LBA ranges don't overlap, so 12664 * this doesn't match the user's range criteria. 12665 */ 12666 if (action == CTL_ACTION_PASS) 12667 return (CTL_LUN_PAT_NONE); 12668 } 12669 12670 return (filtered_pattern); 12671} 12672 12673static void 12674ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12675{ 12676 struct ctl_error_desc *desc, *desc2; 12677 12678 mtx_assert(&lun->lun_lock, MA_OWNED); 12679 12680 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12681 ctl_lun_error_pattern pattern; 12682 /* 12683 * Check to see whether this particular command matches 12684 * the pattern in the descriptor. 12685 */ 12686 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12687 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12688 continue; 12689 12690 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12691 case CTL_LUN_INJ_ABORTED: 12692 ctl_set_aborted(&io->scsiio); 12693 break; 12694 case CTL_LUN_INJ_MEDIUM_ERR: 12695 ctl_set_medium_error(&io->scsiio); 12696 break; 12697 case CTL_LUN_INJ_UA: 12698 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12699 * OCCURRED */ 12700 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12701 break; 12702 case CTL_LUN_INJ_CUSTOM: 12703 /* 12704 * We're assuming the user knows what he is doing. 12705 * Just copy the sense information without doing 12706 * checks. 12707 */ 12708 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12709 ctl_min(sizeof(desc->custom_sense), 12710 sizeof(io->scsiio.sense_data))); 12711 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12712 io->scsiio.sense_len = SSD_FULL_SIZE; 12713 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12714 break; 12715 case CTL_LUN_INJ_NONE: 12716 default: 12717 /* 12718 * If this is an error injection type we don't know 12719 * about, clear the continuous flag (if it is set) 12720 * so it will get deleted below. 12721 */ 12722 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12723 break; 12724 } 12725 /* 12726 * By default, each error injection action is a one-shot 12727 */ 12728 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12729 continue; 12730 12731 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12732 12733 free(desc, M_CTL); 12734 } 12735} 12736 12737#ifdef CTL_IO_DELAY 12738static void 12739ctl_datamove_timer_wakeup(void *arg) 12740{ 12741 union ctl_io *io; 12742 12743 io = (union ctl_io *)arg; 12744 12745 ctl_datamove(io); 12746} 12747#endif /* CTL_IO_DELAY */ 12748 12749void 12750ctl_datamove(union ctl_io *io) 12751{ 12752 void (*fe_datamove)(union ctl_io *io); 12753 12754 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12755 12756 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12757 12758#ifdef CTL_TIME_IO 12759 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12760 char str[256]; 12761 char path_str[64]; 12762 struct sbuf sb; 12763 12764 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12765 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12766 12767 sbuf_cat(&sb, path_str); 12768 switch (io->io_hdr.io_type) { 12769 case CTL_IO_SCSI: 12770 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12771 sbuf_printf(&sb, "\n"); 12772 sbuf_cat(&sb, path_str); 12773 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12774 io->scsiio.tag_num, io->scsiio.tag_type); 12775 break; 12776 case CTL_IO_TASK: 12777 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12778 "Tag Type: %d\n", io->taskio.task_action, 12779 io->taskio.tag_num, io->taskio.tag_type); 12780 break; 12781 default: 12782 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12783 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12784 break; 12785 } 12786 sbuf_cat(&sb, path_str); 12787 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12788 (intmax_t)time_uptime - io->io_hdr.start_time); 12789 sbuf_finish(&sb); 12790 printf("%s", sbuf_data(&sb)); 12791 } 12792#endif /* CTL_TIME_IO */ 12793 12794#ifdef CTL_IO_DELAY 12795 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12796 struct ctl_lun *lun; 12797 12798 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12799 12800 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12801 } else { 12802 struct ctl_lun *lun; 12803 12804 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12805 if ((lun != NULL) 12806 && (lun->delay_info.datamove_delay > 0)) { 12807 struct callout *callout; 12808 12809 callout = (struct callout *)&io->io_hdr.timer_bytes; 12810 callout_init(callout, /*mpsafe*/ 1); 12811 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12812 callout_reset(callout, 12813 lun->delay_info.datamove_delay * hz, 12814 ctl_datamove_timer_wakeup, io); 12815 if (lun->delay_info.datamove_type == 12816 CTL_DELAY_TYPE_ONESHOT) 12817 lun->delay_info.datamove_delay = 0; 12818 return; 12819 } 12820 } 12821#endif 12822 12823 /* 12824 * This command has been aborted. Set the port status, so we fail 12825 * the data move. 12826 */ 12827 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12828 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12829 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12830 io->io_hdr.nexus.targ_port, 12831 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12832 io->io_hdr.nexus.targ_lun); 12833 io->io_hdr.port_status = 31337; 12834 /* 12835 * Note that the backend, in this case, will get the 12836 * callback in its context. In other cases it may get 12837 * called in the frontend's interrupt thread context. 12838 */ 12839 io->scsiio.be_move_done(io); 12840 return; 12841 } 12842 12843 /* 12844 * If we're in XFER mode and this I/O is from the other shelf 12845 * controller, we need to send the DMA to the other side to 12846 * actually transfer the data to/from the host. In serialize only 12847 * mode the transfer happens below CTL and ctl_datamove() is only 12848 * called on the machine that originally received the I/O. 12849 */ 12850 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12851 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12852 union ctl_ha_msg msg; 12853 uint32_t sg_entries_sent; 12854 int do_sg_copy; 12855 int i; 12856 12857 memset(&msg, 0, sizeof(msg)); 12858 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12859 msg.hdr.original_sc = io->io_hdr.original_sc; 12860 msg.hdr.serializing_sc = io; 12861 msg.hdr.nexus = io->io_hdr.nexus; 12862 msg.dt.flags = io->io_hdr.flags; 12863 /* 12864 * We convert everything into a S/G list here. We can't 12865 * pass by reference, only by value between controllers. 12866 * So we can't pass a pointer to the S/G list, only as many 12867 * S/G entries as we can fit in here. If it's possible for 12868 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12869 * then we need to break this up into multiple transfers. 12870 */ 12871 if (io->scsiio.kern_sg_entries == 0) { 12872 msg.dt.kern_sg_entries = 1; 12873 /* 12874 * If this is in cached memory, flush the cache 12875 * before we send the DMA request to the other 12876 * controller. We want to do this in either the 12877 * read or the write case. The read case is 12878 * straightforward. In the write case, we want to 12879 * make sure nothing is in the local cache that 12880 * could overwrite the DMAed data. 12881 */ 12882 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12883 /* 12884 * XXX KDM use bus_dmamap_sync() here. 12885 */ 12886 } 12887 12888 /* 12889 * Convert to a physical address if this is a 12890 * virtual address. 12891 */ 12892 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12893 msg.dt.sg_list[0].addr = 12894 io->scsiio.kern_data_ptr; 12895 } else { 12896 /* 12897 * XXX KDM use busdma here! 12898 */ 12899#if 0 12900 msg.dt.sg_list[0].addr = (void *) 12901 vtophys(io->scsiio.kern_data_ptr); 12902#endif 12903 } 12904 12905 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12906 do_sg_copy = 0; 12907 } else { 12908 struct ctl_sg_entry *sgl; 12909 12910 do_sg_copy = 1; 12911 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12912 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12913 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12914 /* 12915 * XXX KDM use bus_dmamap_sync() here. 12916 */ 12917 } 12918 } 12919 12920 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12921 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12922 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12923 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12924 msg.dt.sg_sequence = 0; 12925 12926 /* 12927 * Loop until we've sent all of the S/G entries. On the 12928 * other end, we'll recompose these S/G entries into one 12929 * contiguous list before passing it to the 12930 */ 12931 for (sg_entries_sent = 0; sg_entries_sent < 12932 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12933 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12934 sizeof(msg.dt.sg_list[0])), 12935 msg.dt.kern_sg_entries - sg_entries_sent); 12936 12937 if (do_sg_copy != 0) { 12938 struct ctl_sg_entry *sgl; 12939 int j; 12940 12941 sgl = (struct ctl_sg_entry *) 12942 io->scsiio.kern_data_ptr; 12943 /* 12944 * If this is in cached memory, flush the cache 12945 * before we send the DMA request to the other 12946 * controller. We want to do this in either 12947 * the * read or the write case. The read 12948 * case is straightforward. In the write 12949 * case, we want to make sure nothing is 12950 * in the local cache that could overwrite 12951 * the DMAed data. 12952 */ 12953 12954 for (i = sg_entries_sent, j = 0; 12955 i < msg.dt.cur_sg_entries; i++, j++) { 12956 if ((io->io_hdr.flags & 12957 CTL_FLAG_NO_DATASYNC) == 0) { 12958 /* 12959 * XXX KDM use bus_dmamap_sync() 12960 */ 12961 } 12962 if ((io->io_hdr.flags & 12963 CTL_FLAG_BUS_ADDR) == 0) { 12964 /* 12965 * XXX KDM use busdma. 12966 */ 12967#if 0 12968 msg.dt.sg_list[j].addr =(void *) 12969 vtophys(sgl[i].addr); 12970#endif 12971 } else { 12972 msg.dt.sg_list[j].addr = 12973 sgl[i].addr; 12974 } 12975 msg.dt.sg_list[j].len = sgl[i].len; 12976 } 12977 } 12978 12979 sg_entries_sent += msg.dt.cur_sg_entries; 12980 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12981 msg.dt.sg_last = 1; 12982 else 12983 msg.dt.sg_last = 0; 12984 12985 /* 12986 * XXX KDM drop and reacquire the lock here? 12987 */ 12988 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12989 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12990 /* 12991 * XXX do something here. 12992 */ 12993 } 12994 12995 msg.dt.sent_sg_entries = sg_entries_sent; 12996 } 12997 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12998 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12999 ctl_failover_io(io, /*have_lock*/ 0); 13000 13001 } else { 13002 13003 /* 13004 * Lookup the fe_datamove() function for this particular 13005 * front end. 13006 */ 13007 fe_datamove = 13008 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13009 13010 fe_datamove(io); 13011 } 13012} 13013 13014static void 13015ctl_send_datamove_done(union ctl_io *io, int have_lock) 13016{ 13017 union ctl_ha_msg msg; 13018 int isc_status; 13019 13020 memset(&msg, 0, sizeof(msg)); 13021 13022 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13023 msg.hdr.original_sc = io; 13024 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13025 msg.hdr.nexus = io->io_hdr.nexus; 13026 msg.hdr.status = io->io_hdr.status; 13027 msg.scsi.tag_num = io->scsiio.tag_num; 13028 msg.scsi.tag_type = io->scsiio.tag_type; 13029 msg.scsi.scsi_status = io->scsiio.scsi_status; 13030 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13031 sizeof(io->scsiio.sense_data)); 13032 msg.scsi.sense_len = io->scsiio.sense_len; 13033 msg.scsi.sense_residual = io->scsiio.sense_residual; 13034 msg.scsi.fetd_status = io->io_hdr.port_status; 13035 msg.scsi.residual = io->scsiio.residual; 13036 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13037 13038 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13039 ctl_failover_io(io, /*have_lock*/ have_lock); 13040 return; 13041 } 13042 13043 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13044 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13045 /* XXX do something if this fails */ 13046 } 13047 13048} 13049 13050/* 13051 * The DMA to the remote side is done, now we need to tell the other side 13052 * we're done so it can continue with its data movement. 13053 */ 13054static void 13055ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13056{ 13057 union ctl_io *io; 13058 13059 io = rq->context; 13060 13061 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13062 printf("%s: ISC DMA write failed with error %d", __func__, 13063 rq->ret); 13064 ctl_set_internal_failure(&io->scsiio, 13065 /*sks_valid*/ 1, 13066 /*retry_count*/ rq->ret); 13067 } 13068 13069 ctl_dt_req_free(rq); 13070 13071 /* 13072 * In this case, we had to malloc the memory locally. Free it. 13073 */ 13074 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13075 int i; 13076 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13077 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13078 } 13079 /* 13080 * The data is in local and remote memory, so now we need to send 13081 * status (good or back) back to the other side. 13082 */ 13083 ctl_send_datamove_done(io, /*have_lock*/ 0); 13084} 13085 13086/* 13087 * We've moved the data from the host/controller into local memory. Now we 13088 * need to push it over to the remote controller's memory. 13089 */ 13090static int 13091ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13092{ 13093 int retval; 13094 13095 retval = 0; 13096 13097 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13098 ctl_datamove_remote_write_cb); 13099 13100 return (retval); 13101} 13102 13103static void 13104ctl_datamove_remote_write(union ctl_io *io) 13105{ 13106 int retval; 13107 void (*fe_datamove)(union ctl_io *io); 13108 13109 /* 13110 * - Get the data from the host/HBA into local memory. 13111 * - DMA memory from the local controller to the remote controller. 13112 * - Send status back to the remote controller. 13113 */ 13114 13115 retval = ctl_datamove_remote_sgl_setup(io); 13116 if (retval != 0) 13117 return; 13118 13119 /* Switch the pointer over so the FETD knows what to do */ 13120 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13121 13122 /* 13123 * Use a custom move done callback, since we need to send completion 13124 * back to the other controller, not to the backend on this side. 13125 */ 13126 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13127 13128 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13129 13130 fe_datamove(io); 13131 13132 return; 13133 13134} 13135 13136static int 13137ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13138{ 13139#if 0 13140 char str[256]; 13141 char path_str[64]; 13142 struct sbuf sb; 13143#endif 13144 13145 /* 13146 * In this case, we had to malloc the memory locally. Free it. 13147 */ 13148 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13149 int i; 13150 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13151 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13152 } 13153 13154#if 0 13155 scsi_path_string(io, path_str, sizeof(path_str)); 13156 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13157 sbuf_cat(&sb, path_str); 13158 scsi_command_string(&io->scsiio, NULL, &sb); 13159 sbuf_printf(&sb, "\n"); 13160 sbuf_cat(&sb, path_str); 13161 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13162 io->scsiio.tag_num, io->scsiio.tag_type); 13163 sbuf_cat(&sb, path_str); 13164 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13165 io->io_hdr.flags, io->io_hdr.status); 13166 sbuf_finish(&sb); 13167 printk("%s", sbuf_data(&sb)); 13168#endif 13169 13170 13171 /* 13172 * The read is done, now we need to send status (good or bad) back 13173 * to the other side. 13174 */ 13175 ctl_send_datamove_done(io, /*have_lock*/ 0); 13176 13177 return (0); 13178} 13179 13180static void 13181ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13182{ 13183 union ctl_io *io; 13184 void (*fe_datamove)(union ctl_io *io); 13185 13186 io = rq->context; 13187 13188 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13189 printf("%s: ISC DMA read failed with error %d", __func__, 13190 rq->ret); 13191 ctl_set_internal_failure(&io->scsiio, 13192 /*sks_valid*/ 1, 13193 /*retry_count*/ rq->ret); 13194 } 13195 13196 ctl_dt_req_free(rq); 13197 13198 /* Switch the pointer over so the FETD knows what to do */ 13199 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13200 13201 /* 13202 * Use a custom move done callback, since we need to send completion 13203 * back to the other controller, not to the backend on this side. 13204 */ 13205 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13206 13207 /* XXX KDM add checks like the ones in ctl_datamove? */ 13208 13209 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13210 13211 fe_datamove(io); 13212} 13213 13214static int 13215ctl_datamove_remote_sgl_setup(union ctl_io *io) 13216{ 13217 struct ctl_sg_entry *local_sglist, *remote_sglist; 13218 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13219 struct ctl_softc *softc; 13220 int retval; 13221 int i; 13222 13223 retval = 0; 13224 softc = control_softc; 13225 13226 local_sglist = io->io_hdr.local_sglist; 13227 local_dma_sglist = io->io_hdr.local_dma_sglist; 13228 remote_sglist = io->io_hdr.remote_sglist; 13229 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13230 13231 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13232 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13233 local_sglist[i].len = remote_sglist[i].len; 13234 13235 /* 13236 * XXX Detect the situation where the RS-level I/O 13237 * redirector on the other side has already read the 13238 * data off of the AOR RS on this side, and 13239 * transferred it to remote (mirror) memory on the 13240 * other side. Since we already have the data in 13241 * memory here, we just need to use it. 13242 * 13243 * XXX KDM this can probably be removed once we 13244 * get the cache device code in and take the 13245 * current AOR implementation out. 13246 */ 13247#ifdef NEEDTOPORT 13248 if ((remote_sglist[i].addr >= 13249 (void *)vtophys(softc->mirr->addr)) 13250 && (remote_sglist[i].addr < 13251 ((void *)vtophys(softc->mirr->addr) + 13252 CacheMirrorOffset))) { 13253 local_sglist[i].addr = remote_sglist[i].addr - 13254 CacheMirrorOffset; 13255 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13256 CTL_FLAG_DATA_IN) 13257 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13258 } else { 13259 local_sglist[i].addr = remote_sglist[i].addr + 13260 CacheMirrorOffset; 13261 } 13262#endif 13263#if 0 13264 printf("%s: local %p, remote %p, len %d\n", 13265 __func__, local_sglist[i].addr, 13266 remote_sglist[i].addr, local_sglist[i].len); 13267#endif 13268 } 13269 } else { 13270 uint32_t len_to_go; 13271 13272 /* 13273 * In this case, we don't have automatically allocated 13274 * memory for this I/O on this controller. This typically 13275 * happens with internal CTL I/O -- e.g. inquiry, mode 13276 * sense, etc. Anything coming from RAIDCore will have 13277 * a mirror area available. 13278 */ 13279 len_to_go = io->scsiio.kern_data_len; 13280 13281 /* 13282 * Clear the no datasync flag, we have to use malloced 13283 * buffers. 13284 */ 13285 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13286 13287 /* 13288 * The difficult thing here is that the size of the various 13289 * S/G segments may be different than the size from the 13290 * remote controller. That'll make it harder when DMAing 13291 * the data back to the other side. 13292 */ 13293 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13294 sizeof(io->io_hdr.remote_sglist[0])) && 13295 (len_to_go > 0); i++) { 13296 local_sglist[i].len = ctl_min(len_to_go, 131072); 13297 CTL_SIZE_8B(local_dma_sglist[i].len, 13298 local_sglist[i].len); 13299 local_sglist[i].addr = 13300 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13301 13302 local_dma_sglist[i].addr = local_sglist[i].addr; 13303 13304 if (local_sglist[i].addr == NULL) { 13305 int j; 13306 13307 printf("malloc failed for %zd bytes!", 13308 local_dma_sglist[i].len); 13309 for (j = 0; j < i; j++) { 13310 free(local_sglist[j].addr, M_CTL); 13311 } 13312 ctl_set_internal_failure(&io->scsiio, 13313 /*sks_valid*/ 1, 13314 /*retry_count*/ 4857); 13315 retval = 1; 13316 goto bailout_error; 13317 13318 } 13319 /* XXX KDM do we need a sync here? */ 13320 13321 len_to_go -= local_sglist[i].len; 13322 } 13323 /* 13324 * Reset the number of S/G entries accordingly. The 13325 * original number of S/G entries is available in 13326 * rem_sg_entries. 13327 */ 13328 io->scsiio.kern_sg_entries = i; 13329 13330#if 0 13331 printf("%s: kern_sg_entries = %d\n", __func__, 13332 io->scsiio.kern_sg_entries); 13333 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13334 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13335 local_sglist[i].addr, local_sglist[i].len, 13336 local_dma_sglist[i].len); 13337#endif 13338 } 13339 13340 13341 return (retval); 13342 13343bailout_error: 13344 13345 ctl_send_datamove_done(io, /*have_lock*/ 0); 13346 13347 return (retval); 13348} 13349 13350static int 13351ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13352 ctl_ha_dt_cb callback) 13353{ 13354 struct ctl_ha_dt_req *rq; 13355 struct ctl_sg_entry *remote_sglist, *local_sglist; 13356 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13357 uint32_t local_used, remote_used, total_used; 13358 int retval; 13359 int i, j; 13360 13361 retval = 0; 13362 13363 rq = ctl_dt_req_alloc(); 13364 13365 /* 13366 * If we failed to allocate the request, and if the DMA didn't fail 13367 * anyway, set busy status. This is just a resource allocation 13368 * failure. 13369 */ 13370 if ((rq == NULL) 13371 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13372 ctl_set_busy(&io->scsiio); 13373 13374 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13375 13376 if (rq != NULL) 13377 ctl_dt_req_free(rq); 13378 13379 /* 13380 * The data move failed. We need to return status back 13381 * to the other controller. No point in trying to DMA 13382 * data to the remote controller. 13383 */ 13384 13385 ctl_send_datamove_done(io, /*have_lock*/ 0); 13386 13387 retval = 1; 13388 13389 goto bailout; 13390 } 13391 13392 local_sglist = io->io_hdr.local_sglist; 13393 local_dma_sglist = io->io_hdr.local_dma_sglist; 13394 remote_sglist = io->io_hdr.remote_sglist; 13395 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13396 local_used = 0; 13397 remote_used = 0; 13398 total_used = 0; 13399 13400 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13401 rq->ret = CTL_HA_STATUS_SUCCESS; 13402 rq->context = io; 13403 callback(rq); 13404 goto bailout; 13405 } 13406 13407 /* 13408 * Pull/push the data over the wire from/to the other controller. 13409 * This takes into account the possibility that the local and 13410 * remote sglists may not be identical in terms of the size of 13411 * the elements and the number of elements. 13412 * 13413 * One fundamental assumption here is that the length allocated for 13414 * both the local and remote sglists is identical. Otherwise, we've 13415 * essentially got a coding error of some sort. 13416 */ 13417 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13418 int isc_ret; 13419 uint32_t cur_len, dma_length; 13420 uint8_t *tmp_ptr; 13421 13422 rq->id = CTL_HA_DATA_CTL; 13423 rq->command = command; 13424 rq->context = io; 13425 13426 /* 13427 * Both pointers should be aligned. But it is possible 13428 * that the allocation length is not. They should both 13429 * also have enough slack left over at the end, though, 13430 * to round up to the next 8 byte boundary. 13431 */ 13432 cur_len = ctl_min(local_sglist[i].len - local_used, 13433 remote_sglist[j].len - remote_used); 13434 13435 /* 13436 * In this case, we have a size issue and need to decrease 13437 * the size, except in the case where we actually have less 13438 * than 8 bytes left. In that case, we need to increase 13439 * the DMA length to get the last bit. 13440 */ 13441 if ((cur_len & 0x7) != 0) { 13442 if (cur_len > 0x7) { 13443 cur_len = cur_len - (cur_len & 0x7); 13444 dma_length = cur_len; 13445 } else { 13446 CTL_SIZE_8B(dma_length, cur_len); 13447 } 13448 13449 } else 13450 dma_length = cur_len; 13451 13452 /* 13453 * If we had to allocate memory for this I/O, instead of using 13454 * the non-cached mirror memory, we'll need to flush the cache 13455 * before trying to DMA to the other controller. 13456 * 13457 * We could end up doing this multiple times for the same 13458 * segment if we have a larger local segment than remote 13459 * segment. That shouldn't be an issue. 13460 */ 13461 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13462 /* 13463 * XXX KDM use bus_dmamap_sync() here. 13464 */ 13465 } 13466 13467 rq->size = dma_length; 13468 13469 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13470 tmp_ptr += local_used; 13471 13472 /* Use physical addresses when talking to ISC hardware */ 13473 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13474 /* XXX KDM use busdma */ 13475#if 0 13476 rq->local = vtophys(tmp_ptr); 13477#endif 13478 } else 13479 rq->local = tmp_ptr; 13480 13481 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13482 tmp_ptr += remote_used; 13483 rq->remote = tmp_ptr; 13484 13485 rq->callback = NULL; 13486 13487 local_used += cur_len; 13488 if (local_used >= local_sglist[i].len) { 13489 i++; 13490 local_used = 0; 13491 } 13492 13493 remote_used += cur_len; 13494 if (remote_used >= remote_sglist[j].len) { 13495 j++; 13496 remote_used = 0; 13497 } 13498 total_used += cur_len; 13499 13500 if (total_used >= io->scsiio.kern_data_len) 13501 rq->callback = callback; 13502 13503 if ((rq->size & 0x7) != 0) { 13504 printf("%s: warning: size %d is not on 8b boundary\n", 13505 __func__, rq->size); 13506 } 13507 if (((uintptr_t)rq->local & 0x7) != 0) { 13508 printf("%s: warning: local %p not on 8b boundary\n", 13509 __func__, rq->local); 13510 } 13511 if (((uintptr_t)rq->remote & 0x7) != 0) { 13512 printf("%s: warning: remote %p not on 8b boundary\n", 13513 __func__, rq->local); 13514 } 13515#if 0 13516 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13517 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13518 rq->local, rq->remote, rq->size); 13519#endif 13520 13521 isc_ret = ctl_dt_single(rq); 13522 if (isc_ret == CTL_HA_STATUS_WAIT) 13523 continue; 13524 13525 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13526 rq->ret = CTL_HA_STATUS_SUCCESS; 13527 } else { 13528 rq->ret = isc_ret; 13529 } 13530 callback(rq); 13531 goto bailout; 13532 } 13533 13534bailout: 13535 return (retval); 13536 13537} 13538 13539static void 13540ctl_datamove_remote_read(union ctl_io *io) 13541{ 13542 int retval; 13543 int i; 13544 13545 /* 13546 * This will send an error to the other controller in the case of a 13547 * failure. 13548 */ 13549 retval = ctl_datamove_remote_sgl_setup(io); 13550 if (retval != 0) 13551 return; 13552 13553 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13554 ctl_datamove_remote_read_cb); 13555 if ((retval != 0) 13556 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13557 /* 13558 * Make sure we free memory if there was an error.. The 13559 * ctl_datamove_remote_xfer() function will send the 13560 * datamove done message, or call the callback with an 13561 * error if there is a problem. 13562 */ 13563 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13564 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13565 } 13566 13567 return; 13568} 13569 13570/* 13571 * Process a datamove request from the other controller. This is used for 13572 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13573 * first. Once that is complete, the data gets DMAed into the remote 13574 * controller's memory. For reads, we DMA from the remote controller's 13575 * memory into our memory first, and then move it out to the FETD. 13576 */ 13577static void 13578ctl_datamove_remote(union ctl_io *io) 13579{ 13580 struct ctl_softc *softc; 13581 13582 softc = control_softc; 13583 13584 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13585 13586 /* 13587 * Note that we look for an aborted I/O here, but don't do some of 13588 * the other checks that ctl_datamove() normally does. 13589 * We don't need to run the datamove delay code, since that should 13590 * have been done if need be on the other controller. 13591 */ 13592 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13593 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13594 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13595 io->io_hdr.nexus.targ_port, 13596 io->io_hdr.nexus.targ_target.id, 13597 io->io_hdr.nexus.targ_lun); 13598 io->io_hdr.port_status = 31338; 13599 ctl_send_datamove_done(io, /*have_lock*/ 0); 13600 return; 13601 } 13602 13603 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13604 ctl_datamove_remote_write(io); 13605 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13606 ctl_datamove_remote_read(io); 13607 } else { 13608 union ctl_ha_msg msg; 13609 struct scsi_sense_data *sense; 13610 uint8_t sks[3]; 13611 int retry_count; 13612 13613 memset(&msg, 0, sizeof(msg)); 13614 13615 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13616 msg.hdr.status = CTL_SCSI_ERROR; 13617 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13618 13619 retry_count = 4243; 13620 13621 sense = &msg.scsi.sense_data; 13622 sks[0] = SSD_SCS_VALID; 13623 sks[1] = (retry_count >> 8) & 0xff; 13624 sks[2] = retry_count & 0xff; 13625 13626 /* "Internal target failure" */ 13627 scsi_set_sense_data(sense, 13628 /*sense_format*/ SSD_TYPE_NONE, 13629 /*current_error*/ 1, 13630 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13631 /*asc*/ 0x44, 13632 /*ascq*/ 0x00, 13633 /*type*/ SSD_ELEM_SKS, 13634 /*size*/ sizeof(sks), 13635 /*data*/ sks, 13636 SSD_ELEM_NONE); 13637 13638 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13639 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13640 ctl_failover_io(io, /*have_lock*/ 1); 13641 return; 13642 } 13643 13644 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13645 CTL_HA_STATUS_SUCCESS) { 13646 /* XXX KDM what to do if this fails? */ 13647 } 13648 return; 13649 } 13650 13651} 13652 13653static int 13654ctl_process_done(union ctl_io *io) 13655{ 13656 struct ctl_lun *lun; 13657 struct ctl_softc *ctl_softc; 13658 void (*fe_done)(union ctl_io *io); 13659 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13660 13661 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13662 13663 fe_done = 13664 control_softc->ctl_ports[targ_port]->fe_done; 13665 13666#ifdef CTL_TIME_IO 13667 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13668 char str[256]; 13669 char path_str[64]; 13670 struct sbuf sb; 13671 13672 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13673 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13674 13675 sbuf_cat(&sb, path_str); 13676 switch (io->io_hdr.io_type) { 13677 case CTL_IO_SCSI: 13678 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13679 sbuf_printf(&sb, "\n"); 13680 sbuf_cat(&sb, path_str); 13681 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13682 io->scsiio.tag_num, io->scsiio.tag_type); 13683 break; 13684 case CTL_IO_TASK: 13685 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13686 "Tag Type: %d\n", io->taskio.task_action, 13687 io->taskio.tag_num, io->taskio.tag_type); 13688 break; 13689 default: 13690 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13691 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13692 break; 13693 } 13694 sbuf_cat(&sb, path_str); 13695 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13696 (intmax_t)time_uptime - io->io_hdr.start_time); 13697 sbuf_finish(&sb); 13698 printf("%s", sbuf_data(&sb)); 13699 } 13700#endif /* CTL_TIME_IO */ 13701 13702 switch (io->io_hdr.io_type) { 13703 case CTL_IO_SCSI: 13704 break; 13705 case CTL_IO_TASK: 13706 if (bootverbose || verbose > 0) 13707 ctl_io_error_print(io, NULL); 13708 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13709 ctl_free_io(io); 13710 else 13711 fe_done(io); 13712 return (CTL_RETVAL_COMPLETE); 13713 break; 13714 default: 13715 printf("ctl_process_done: invalid io type %d\n", 13716 io->io_hdr.io_type); 13717 panic("ctl_process_done: invalid io type %d\n", 13718 io->io_hdr.io_type); 13719 break; /* NOTREACHED */ 13720 } 13721 13722 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13723 if (lun == NULL) { 13724 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13725 io->io_hdr.nexus.targ_mapped_lun)); 13726 fe_done(io); 13727 goto bailout; 13728 } 13729 ctl_softc = lun->ctl_softc; 13730 13731 mtx_lock(&lun->lun_lock); 13732 13733 /* 13734 * Check to see if we have any errors to inject here. We only 13735 * inject errors for commands that don't already have errors set. 13736 */ 13737 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13738 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13739 ctl_inject_error(lun, io); 13740 13741 /* 13742 * XXX KDM how do we treat commands that aren't completed 13743 * successfully? 13744 * 13745 * XXX KDM should we also track I/O latency? 13746 */ 13747 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13748 io->io_hdr.io_type == CTL_IO_SCSI) { 13749#ifdef CTL_TIME_IO 13750 struct bintime cur_bt; 13751#endif 13752 int type; 13753 13754 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13755 CTL_FLAG_DATA_IN) 13756 type = CTL_STATS_READ; 13757 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13758 CTL_FLAG_DATA_OUT) 13759 type = CTL_STATS_WRITE; 13760 else 13761 type = CTL_STATS_NO_IO; 13762 13763 lun->stats.ports[targ_port].bytes[type] += 13764 io->scsiio.kern_total_len; 13765 lun->stats.ports[targ_port].operations[type]++; 13766#ifdef CTL_TIME_IO 13767 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13768 &io->io_hdr.dma_bt); 13769 lun->stats.ports[targ_port].num_dmas[type] += 13770 io->io_hdr.num_dmas; 13771 getbintime(&cur_bt); 13772 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13773 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13774#endif 13775 } 13776 13777 /* 13778 * Remove this from the OOA queue. 13779 */ 13780 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13781 13782 /* 13783 * Run through the blocked queue on this LUN and see if anything 13784 * has become unblocked, now that this transaction is done. 13785 */ 13786 ctl_check_blocked(lun); 13787 13788 /* 13789 * If the LUN has been invalidated, free it if there is nothing 13790 * left on its OOA queue. 13791 */ 13792 if ((lun->flags & CTL_LUN_INVALID) 13793 && TAILQ_EMPTY(&lun->ooa_queue)) { 13794 mtx_unlock(&lun->lun_lock); 13795 mtx_lock(&ctl_softc->ctl_lock); 13796 ctl_free_lun(lun); 13797 mtx_unlock(&ctl_softc->ctl_lock); 13798 } else 13799 mtx_unlock(&lun->lun_lock); 13800 13801 /* 13802 * If this command has been aborted, make sure we set the status 13803 * properly. The FETD is responsible for freeing the I/O and doing 13804 * whatever it needs to do to clean up its state. 13805 */ 13806 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13807 ctl_set_task_aborted(&io->scsiio); 13808 13809 /* 13810 * We print out status for every task management command. For SCSI 13811 * commands, we filter out any unit attention errors; they happen 13812 * on every boot, and would clutter up the log. Note: task 13813 * management commands aren't printed here, they are printed above, 13814 * since they should never even make it down here. 13815 */ 13816 switch (io->io_hdr.io_type) { 13817 case CTL_IO_SCSI: { 13818 int error_code, sense_key, asc, ascq; 13819 13820 sense_key = 0; 13821 13822 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13823 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13824 /* 13825 * Since this is just for printing, no need to 13826 * show errors here. 13827 */ 13828 scsi_extract_sense_len(&io->scsiio.sense_data, 13829 io->scsiio.sense_len, 13830 &error_code, 13831 &sense_key, 13832 &asc, 13833 &ascq, 13834 /*show_errors*/ 0); 13835 } 13836 13837 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13838 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13839 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13840 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13841 13842 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13843 ctl_softc->skipped_prints++; 13844 } else { 13845 uint32_t skipped_prints; 13846 13847 skipped_prints = ctl_softc->skipped_prints; 13848 13849 ctl_softc->skipped_prints = 0; 13850 ctl_softc->last_print_jiffies = time_uptime; 13851 13852 if (skipped_prints > 0) { 13853#ifdef NEEDTOPORT 13854 csevent_log(CSC_CTL | CSC_SHELF_SW | 13855 CTL_ERROR_REPORT, 13856 csevent_LogType_Trace, 13857 csevent_Severity_Information, 13858 csevent_AlertLevel_Green, 13859 csevent_FRU_Firmware, 13860 csevent_FRU_Unknown, 13861 "High CTL error volume, %d prints " 13862 "skipped", skipped_prints); 13863#endif 13864 } 13865 if (bootverbose || verbose > 0) 13866 ctl_io_error_print(io, NULL); 13867 } 13868 } 13869 break; 13870 } 13871 case CTL_IO_TASK: 13872 if (bootverbose || verbose > 0) 13873 ctl_io_error_print(io, NULL); 13874 break; 13875 default: 13876 break; 13877 } 13878 13879 /* 13880 * Tell the FETD or the other shelf controller we're done with this 13881 * command. Note that only SCSI commands get to this point. Task 13882 * management commands are completed above. 13883 * 13884 * We only send status to the other controller if we're in XFER 13885 * mode. In SER_ONLY mode, the I/O is done on the controller that 13886 * received the I/O (from CTL's perspective), and so the status is 13887 * generated there. 13888 * 13889 * XXX KDM if we hold the lock here, we could cause a deadlock 13890 * if the frontend comes back in in this context to queue 13891 * something. 13892 */ 13893 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13894 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13895 union ctl_ha_msg msg; 13896 13897 memset(&msg, 0, sizeof(msg)); 13898 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13899 msg.hdr.original_sc = io->io_hdr.original_sc; 13900 msg.hdr.nexus = io->io_hdr.nexus; 13901 msg.hdr.status = io->io_hdr.status; 13902 msg.scsi.scsi_status = io->scsiio.scsi_status; 13903 msg.scsi.tag_num = io->scsiio.tag_num; 13904 msg.scsi.tag_type = io->scsiio.tag_type; 13905 msg.scsi.sense_len = io->scsiio.sense_len; 13906 msg.scsi.sense_residual = io->scsiio.sense_residual; 13907 msg.scsi.residual = io->scsiio.residual; 13908 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13909 sizeof(io->scsiio.sense_data)); 13910 /* 13911 * We copy this whether or not this is an I/O-related 13912 * command. Otherwise, we'd have to go and check to see 13913 * whether it's a read/write command, and it really isn't 13914 * worth it. 13915 */ 13916 memcpy(&msg.scsi.lbalen, 13917 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13918 sizeof(msg.scsi.lbalen)); 13919 13920 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13921 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13922 /* XXX do something here */ 13923 } 13924 13925 ctl_free_io(io); 13926 } else 13927 fe_done(io); 13928 13929bailout: 13930 13931 return (CTL_RETVAL_COMPLETE); 13932} 13933 13934#ifdef CTL_WITH_CA 13935/* 13936 * Front end should call this if it doesn't do autosense. When the request 13937 * sense comes back in from the initiator, we'll dequeue this and send it. 13938 */ 13939int 13940ctl_queue_sense(union ctl_io *io) 13941{ 13942 struct ctl_lun *lun; 13943 struct ctl_softc *ctl_softc; 13944 uint32_t initidx, targ_lun; 13945 13946 ctl_softc = control_softc; 13947 13948 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13949 13950 /* 13951 * LUN lookup will likely move to the ctl_work_thread() once we 13952 * have our new queueing infrastructure (that doesn't put things on 13953 * a per-LUN queue initially). That is so that we can handle 13954 * things like an INQUIRY to a LUN that we don't have enabled. We 13955 * can't deal with that right now. 13956 */ 13957 mtx_lock(&ctl_softc->ctl_lock); 13958 13959 /* 13960 * If we don't have a LUN for this, just toss the sense 13961 * information. 13962 */ 13963 targ_lun = io->io_hdr.nexus.targ_lun; 13964 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13965 if ((targ_lun < CTL_MAX_LUNS) 13966 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13967 lun = ctl_softc->ctl_luns[targ_lun]; 13968 else 13969 goto bailout; 13970 13971 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13972 13973 mtx_lock(&lun->lun_lock); 13974 /* 13975 * Already have CA set for this LUN...toss the sense information. 13976 */ 13977 if (ctl_is_set(lun->have_ca, initidx)) { 13978 mtx_unlock(&lun->lun_lock); 13979 goto bailout; 13980 } 13981 13982 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13983 ctl_min(sizeof(lun->pending_sense[initidx]), 13984 sizeof(io->scsiio.sense_data))); 13985 ctl_set_mask(lun->have_ca, initidx); 13986 mtx_unlock(&lun->lun_lock); 13987 13988bailout: 13989 mtx_unlock(&ctl_softc->ctl_lock); 13990 13991 ctl_free_io(io); 13992 13993 return (CTL_RETVAL_COMPLETE); 13994} 13995#endif 13996 13997/* 13998 * Primary command inlet from frontend ports. All SCSI and task I/O 13999 * requests must go through this function. 14000 */ 14001int 14002ctl_queue(union ctl_io *io) 14003{ 14004 struct ctl_softc *ctl_softc; 14005 14006 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 14007 14008 ctl_softc = control_softc; 14009 14010#ifdef CTL_TIME_IO 14011 io->io_hdr.start_time = time_uptime; 14012 getbintime(&io->io_hdr.start_bt); 14013#endif /* CTL_TIME_IO */ 14014 14015 /* Map FE-specific LUN ID into global one. */ 14016 io->io_hdr.nexus.targ_mapped_lun = 14017 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 14018 14019 switch (io->io_hdr.io_type) { 14020 case CTL_IO_SCSI: 14021 case CTL_IO_TASK: 14022 ctl_enqueue_incoming(io); 14023 break; 14024 default: 14025 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14026 return (EINVAL); 14027 } 14028 14029 return (CTL_RETVAL_COMPLETE); 14030} 14031 14032#ifdef CTL_IO_DELAY 14033static void 14034ctl_done_timer_wakeup(void *arg) 14035{ 14036 union ctl_io *io; 14037 14038 io = (union ctl_io *)arg; 14039 ctl_done(io); 14040} 14041#endif /* CTL_IO_DELAY */ 14042 14043void 14044ctl_done(union ctl_io *io) 14045{ 14046 struct ctl_softc *ctl_softc; 14047 14048 ctl_softc = control_softc; 14049 14050 /* 14051 * Enable this to catch duplicate completion issues. 14052 */ 14053#if 0 14054 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14055 printf("%s: type %d msg %d cdb %x iptl: " 14056 "%d:%d:%d:%d tag 0x%04x " 14057 "flag %#x status %x\n", 14058 __func__, 14059 io->io_hdr.io_type, 14060 io->io_hdr.msg_type, 14061 io->scsiio.cdb[0], 14062 io->io_hdr.nexus.initid.id, 14063 io->io_hdr.nexus.targ_port, 14064 io->io_hdr.nexus.targ_target.id, 14065 io->io_hdr.nexus.targ_lun, 14066 (io->io_hdr.io_type == 14067 CTL_IO_TASK) ? 14068 io->taskio.tag_num : 14069 io->scsiio.tag_num, 14070 io->io_hdr.flags, 14071 io->io_hdr.status); 14072 } else 14073 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14074#endif 14075 14076 /* 14077 * This is an internal copy of an I/O, and should not go through 14078 * the normal done processing logic. 14079 */ 14080 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14081 return; 14082 14083 /* 14084 * We need to send a msg to the serializing shelf to finish the IO 14085 * as well. We don't send a finish message to the other shelf if 14086 * this is a task management command. Task management commands 14087 * aren't serialized in the OOA queue, but rather just executed on 14088 * both shelf controllers for commands that originated on that 14089 * controller. 14090 */ 14091 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14092 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14093 union ctl_ha_msg msg_io; 14094 14095 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14096 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14097 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14098 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14099 } 14100 /* continue on to finish IO */ 14101 } 14102#ifdef CTL_IO_DELAY 14103 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14104 struct ctl_lun *lun; 14105 14106 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14107 14108 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14109 } else { 14110 struct ctl_lun *lun; 14111 14112 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14113 14114 if ((lun != NULL) 14115 && (lun->delay_info.done_delay > 0)) { 14116 struct callout *callout; 14117 14118 callout = (struct callout *)&io->io_hdr.timer_bytes; 14119 callout_init(callout, /*mpsafe*/ 1); 14120 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14121 callout_reset(callout, 14122 lun->delay_info.done_delay * hz, 14123 ctl_done_timer_wakeup, io); 14124 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14125 lun->delay_info.done_delay = 0; 14126 return; 14127 } 14128 } 14129#endif /* CTL_IO_DELAY */ 14130 14131 ctl_enqueue_done(io); 14132} 14133 14134int 14135ctl_isc(struct ctl_scsiio *ctsio) 14136{ 14137 struct ctl_lun *lun; 14138 int retval; 14139 14140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14141 14142 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14143 14144 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14145 14146 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14147 14148 return (retval); 14149} 14150 14151 14152static void 14153ctl_work_thread(void *arg) 14154{ 14155 struct ctl_thread *thr = (struct ctl_thread *)arg; 14156 struct ctl_softc *softc = thr->ctl_softc; 14157 union ctl_io *io; 14158 int retval; 14159 14160 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14161 14162 for (;;) { 14163 retval = 0; 14164 14165 /* 14166 * We handle the queues in this order: 14167 * - ISC 14168 * - done queue (to free up resources, unblock other commands) 14169 * - RtR queue 14170 * - incoming queue 14171 * 14172 * If those queues are empty, we break out of the loop and 14173 * go to sleep. 14174 */ 14175 mtx_lock(&thr->queue_lock); 14176 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14177 if (io != NULL) { 14178 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14179 mtx_unlock(&thr->queue_lock); 14180 ctl_handle_isc(io); 14181 continue; 14182 } 14183 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14184 if (io != NULL) { 14185 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14186 /* clear any blocked commands, call fe_done */ 14187 mtx_unlock(&thr->queue_lock); 14188 retval = ctl_process_done(io); 14189 continue; 14190 } 14191 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14192 if (io != NULL) { 14193 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14194 mtx_unlock(&thr->queue_lock); 14195 if (io->io_hdr.io_type == CTL_IO_TASK) 14196 ctl_run_task(io); 14197 else 14198 ctl_scsiio_precheck(softc, &io->scsiio); 14199 continue; 14200 } 14201 if (!ctl_pause_rtr) { 14202 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14203 if (io != NULL) { 14204 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14205 mtx_unlock(&thr->queue_lock); 14206 retval = ctl_scsiio(&io->scsiio); 14207 if (retval != CTL_RETVAL_COMPLETE) 14208 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14209 continue; 14210 } 14211 } 14212 14213 /* Sleep until we have something to do. */ 14214 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14215 } 14216} 14217 14218static void 14219ctl_lun_thread(void *arg) 14220{ 14221 struct ctl_softc *softc = (struct ctl_softc *)arg; 14222 struct ctl_be_lun *be_lun; 14223 int retval; 14224 14225 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14226 14227 for (;;) { 14228 retval = 0; 14229 mtx_lock(&softc->ctl_lock); 14230 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14231 if (be_lun != NULL) { 14232 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14233 mtx_unlock(&softc->ctl_lock); 14234 ctl_create_lun(be_lun); 14235 continue; 14236 } 14237 14238 /* Sleep until we have something to do. */ 14239 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14240 PDROP | PRIBIO, "-", 0); 14241 } 14242} 14243 14244static void 14245ctl_enqueue_incoming(union ctl_io *io) 14246{ 14247 struct ctl_softc *softc = control_softc; 14248 struct ctl_thread *thr; 14249 u_int idx; 14250 14251 idx = (io->io_hdr.nexus.targ_port * 127 + 14252 io->io_hdr.nexus.initid.id) % worker_threads; 14253 thr = &softc->threads[idx]; 14254 mtx_lock(&thr->queue_lock); 14255 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14256 mtx_unlock(&thr->queue_lock); 14257 wakeup(thr); 14258} 14259 14260static void 14261ctl_enqueue_rtr(union ctl_io *io) 14262{ 14263 struct ctl_softc *softc = control_softc; 14264 struct ctl_thread *thr; 14265 14266 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14267 mtx_lock(&thr->queue_lock); 14268 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14269 mtx_unlock(&thr->queue_lock); 14270 wakeup(thr); 14271} 14272 14273static void 14274ctl_enqueue_done(union ctl_io *io) 14275{ 14276 struct ctl_softc *softc = control_softc; 14277 struct ctl_thread *thr; 14278 14279 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14280 mtx_lock(&thr->queue_lock); 14281 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14282 mtx_unlock(&thr->queue_lock); 14283 wakeup(thr); 14284} 14285 14286static void 14287ctl_enqueue_isc(union ctl_io *io) 14288{ 14289 struct ctl_softc *softc = control_softc; 14290 struct ctl_thread *thr; 14291 14292 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14293 mtx_lock(&thr->queue_lock); 14294 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14295 mtx_unlock(&thr->queue_lock); 14296 wakeup(thr); 14297} 14298 14299/* Initialization and failover */ 14300 14301void 14302ctl_init_isc_msg(void) 14303{ 14304 printf("CTL: Still calling this thing\n"); 14305} 14306 14307/* 14308 * Init component 14309 * Initializes component into configuration defined by bootMode 14310 * (see hasc-sv.c) 14311 * returns hasc_Status: 14312 * OK 14313 * ERROR - fatal error 14314 */ 14315static ctl_ha_comp_status 14316ctl_isc_init(struct ctl_ha_component *c) 14317{ 14318 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14319 14320 c->status = ret; 14321 return ret; 14322} 14323 14324/* Start component 14325 * Starts component in state requested. If component starts successfully, 14326 * it must set its own state to the requestrd state 14327 * When requested state is HASC_STATE_HA, the component may refine it 14328 * by adding _SLAVE or _MASTER flags. 14329 * Currently allowed state transitions are: 14330 * UNKNOWN->HA - initial startup 14331 * UNKNOWN->SINGLE - initial startup when no parter detected 14332 * HA->SINGLE - failover 14333 * returns ctl_ha_comp_status: 14334 * OK - component successfully started in requested state 14335 * FAILED - could not start the requested state, failover may 14336 * be possible 14337 * ERROR - fatal error detected, no future startup possible 14338 */ 14339static ctl_ha_comp_status 14340ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14341{ 14342 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14343 14344 printf("%s: go\n", __func__); 14345 14346 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14347 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14348 ctl_is_single = 0; 14349 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14350 != CTL_HA_STATUS_SUCCESS) { 14351 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14352 ret = CTL_HA_COMP_STATUS_ERROR; 14353 } 14354 } else if (CTL_HA_STATE_IS_HA(c->state) 14355 && CTL_HA_STATE_IS_SINGLE(state)){ 14356 // HA->SINGLE transition 14357 ctl_failover(); 14358 ctl_is_single = 1; 14359 } else { 14360 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14361 c->state, state); 14362 ret = CTL_HA_COMP_STATUS_ERROR; 14363 } 14364 if (CTL_HA_STATE_IS_SINGLE(state)) 14365 ctl_is_single = 1; 14366 14367 c->state = state; 14368 c->status = ret; 14369 return ret; 14370} 14371 14372/* 14373 * Quiesce component 14374 * The component must clear any error conditions (set status to OK) and 14375 * prepare itself to another Start call 14376 * returns ctl_ha_comp_status: 14377 * OK 14378 * ERROR 14379 */ 14380static ctl_ha_comp_status 14381ctl_isc_quiesce(struct ctl_ha_component *c) 14382{ 14383 int ret = CTL_HA_COMP_STATUS_OK; 14384 14385 ctl_pause_rtr = 1; 14386 c->status = ret; 14387 return ret; 14388} 14389 14390struct ctl_ha_component ctl_ha_component_ctlisc = 14391{ 14392 .name = "CTL ISC", 14393 .state = CTL_HA_STATE_UNKNOWN, 14394 .init = ctl_isc_init, 14395 .start = ctl_isc_start, 14396 .quiesce = ctl_isc_quiesce 14397}; 14398 14399/* 14400 * vim: ts=8 14401 */ 14402