ctl.c revision 268694
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: stable/10/sys/cam/ctl/ctl.c 268694 2014-07-15 17:16:06Z 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*/ 0, 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*/0, 284 /*eca_and_aen*/0, 285 /*reserved*/0, 286 /*aen_holdoff_period*/{0, 0} 287}; 288 289static struct scsi_control_page control_page_changeable = { 290 /*page_code*/SMS_CONTROL_MODE_PAGE, 291 /*page_length*/sizeof(struct scsi_control_page) - 2, 292 /*rlec*/SCP_DSENSE, 293 /*queue_flags*/0, 294 /*eca_and_aen*/0, 295 /*reserved*/0, 296 /*aen_holdoff_period*/{0, 0} 297}; 298 299 300/* 301 * XXX KDM move these into the softc. 302 */ 303static int rcv_sync_msg; 304static int persis_offset; 305static uint8_t ctl_pause_rtr; 306static int ctl_is_single = 1; 307static int index_to_aps_page; 308 309SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 310static int worker_threads = -1; 311TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 312SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 313 &worker_threads, 1, "Number of worker threads"); 314static int verbose = 0; 315TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 317 &verbose, 0, "Show SCSI errors returned to initiator"); 318 319/* 320 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 321 * SCSI Ports (0x88), Block limits (0xB0) and 322 * Logical Block Provisioning (0xB2) 323 */ 324#define SCSI_EVPD_NUM_SUPPORTED_PAGES 6 325 326static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 327 int param); 328static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 329static int ctl_init(void); 330void ctl_shutdown(void); 331static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 332static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 333static void ctl_ioctl_online(void *arg); 334static void ctl_ioctl_offline(void *arg); 335static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 336static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 337static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 338static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 339static int ctl_ioctl_submit_wait(union ctl_io *io); 340static void ctl_ioctl_datamove(union ctl_io *io); 341static void ctl_ioctl_done(union ctl_io *io); 342static void ctl_ioctl_hard_startstop_callback(void *arg, 343 struct cfi_metatask *metatask); 344static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 345static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 346 struct ctl_ooa *ooa_hdr, 347 struct ctl_ooa_entry *kern_entries); 348static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 349 struct thread *td); 350uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 351uint32_t ctl_port_idx(int port_num); 352static uint32_t ctl_map_lun(int port_num, uint32_t lun); 353static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 354#ifdef unused 355static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 356 uint32_t targ_target, uint32_t targ_lun, 357 int can_wait); 358static void ctl_kfree_io(union ctl_io *io); 359#endif /* unused */ 360static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 361 struct ctl_be_lun *be_lun, struct ctl_id target_id); 362static int ctl_free_lun(struct ctl_lun *lun); 363static void ctl_create_lun(struct ctl_be_lun *be_lun); 364/** 365static void ctl_failover_change_pages(struct ctl_softc *softc, 366 struct ctl_scsiio *ctsio, int master); 367**/ 368 369static int ctl_do_mode_select(union ctl_io *io); 370static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 371 uint64_t res_key, uint64_t sa_res_key, 372 uint8_t type, uint32_t residx, 373 struct ctl_scsiio *ctsio, 374 struct scsi_per_res_out *cdb, 375 struct scsi_per_res_out_parms* param); 376static void ctl_pro_preempt_other(struct ctl_lun *lun, 377 union ctl_ha_msg *msg); 378static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 379static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 380static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 381static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 383 int alloc_len); 384static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 385 int alloc_len); 386static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 388static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 389static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 390static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 391static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 392 union ctl_io *ooa_io); 393static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 394 union ctl_io *starting_io); 395static int ctl_check_blocked(struct ctl_lun *lun); 396static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 397 struct ctl_lun *lun, 398 const struct ctl_cmd_entry *entry, 399 struct ctl_scsiio *ctsio); 400//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 401static void ctl_failover(void); 402static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 403 struct ctl_scsiio *ctsio); 404static int ctl_scsiio(struct ctl_scsiio *ctsio); 405 406static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 407static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 408 ctl_ua_type ua_type); 409static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 410 ctl_ua_type ua_type); 411static int ctl_abort_task(union ctl_io *io); 412static int ctl_abort_task_set(union ctl_io *io); 413static int ctl_i_t_nexus_reset(union ctl_io *io); 414static void ctl_run_task(union ctl_io *io); 415#ifdef CTL_IO_DELAY 416static void ctl_datamove_timer_wakeup(void *arg); 417static void ctl_done_timer_wakeup(void *arg); 418#endif /* CTL_IO_DELAY */ 419 420static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 421static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 422static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 423static void ctl_datamove_remote_write(union ctl_io *io); 424static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 425static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 426static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 427static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 428 ctl_ha_dt_cb callback); 429static void ctl_datamove_remote_read(union ctl_io *io); 430static void ctl_datamove_remote(union ctl_io *io); 431static int ctl_process_done(union ctl_io *io); 432static void ctl_lun_thread(void *arg); 433static void ctl_work_thread(void *arg); 434static void ctl_enqueue_incoming(union ctl_io *io); 435static void ctl_enqueue_rtr(union ctl_io *io); 436static void ctl_enqueue_done(union ctl_io *io); 437static void ctl_enqueue_isc(union ctl_io *io); 438static const struct ctl_cmd_entry * 439 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 440static const struct ctl_cmd_entry * 441 ctl_validate_command(struct ctl_scsiio *ctsio); 442static int ctl_cmd_applicable(uint8_t lun_type, 443 const struct ctl_cmd_entry *entry); 444 445/* 446 * Load the serialization table. This isn't very pretty, but is probably 447 * the easiest way to do it. 448 */ 449#include "ctl_ser_table.c" 450 451/* 452 * We only need to define open, close and ioctl routines for this driver. 453 */ 454static struct cdevsw ctl_cdevsw = { 455 .d_version = D_VERSION, 456 .d_flags = 0, 457 .d_open = ctl_open, 458 .d_close = ctl_close, 459 .d_ioctl = ctl_ioctl, 460 .d_name = "ctl", 461}; 462 463 464MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 465MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 466 467static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 468 469static moduledata_t ctl_moduledata = { 470 "ctl", 471 ctl_module_event_handler, 472 NULL 473}; 474 475DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 476MODULE_VERSION(ctl, 1); 477 478static struct ctl_frontend ioctl_frontend = 479{ 480 .name = "ioctl", 481}; 482 483static void 484ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 485 union ctl_ha_msg *msg_info) 486{ 487 struct ctl_scsiio *ctsio; 488 489 if (msg_info->hdr.original_sc == NULL) { 490 printf("%s: original_sc == NULL!\n", __func__); 491 /* XXX KDM now what? */ 492 return; 493 } 494 495 ctsio = &msg_info->hdr.original_sc->scsiio; 496 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 497 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 498 ctsio->io_hdr.status = msg_info->hdr.status; 499 ctsio->scsi_status = msg_info->scsi.scsi_status; 500 ctsio->sense_len = msg_info->scsi.sense_len; 501 ctsio->sense_residual = msg_info->scsi.sense_residual; 502 ctsio->residual = msg_info->scsi.residual; 503 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 504 sizeof(ctsio->sense_data)); 505 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 506 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 507 ctl_enqueue_isc((union ctl_io *)ctsio); 508} 509 510static void 511ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 512 union ctl_ha_msg *msg_info) 513{ 514 struct ctl_scsiio *ctsio; 515 516 if (msg_info->hdr.serializing_sc == NULL) { 517 printf("%s: serializing_sc == NULL!\n", __func__); 518 /* XXX KDM now what? */ 519 return; 520 } 521 522 ctsio = &msg_info->hdr.serializing_sc->scsiio; 523#if 0 524 /* 525 * Attempt to catch the situation where an I/O has 526 * been freed, and we're using it again. 527 */ 528 if (ctsio->io_hdr.io_type == 0xff) { 529 union ctl_io *tmp_io; 530 tmp_io = (union ctl_io *)ctsio; 531 printf("%s: %p use after free!\n", __func__, 532 ctsio); 533 printf("%s: type %d msg %d cdb %x iptl: " 534 "%d:%d:%d:%d tag 0x%04x " 535 "flag %#x status %x\n", 536 __func__, 537 tmp_io->io_hdr.io_type, 538 tmp_io->io_hdr.msg_type, 539 tmp_io->scsiio.cdb[0], 540 tmp_io->io_hdr.nexus.initid.id, 541 tmp_io->io_hdr.nexus.targ_port, 542 tmp_io->io_hdr.nexus.targ_target.id, 543 tmp_io->io_hdr.nexus.targ_lun, 544 (tmp_io->io_hdr.io_type == 545 CTL_IO_TASK) ? 546 tmp_io->taskio.tag_num : 547 tmp_io->scsiio.tag_num, 548 tmp_io->io_hdr.flags, 549 tmp_io->io_hdr.status); 550 } 551#endif 552 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 553 ctl_enqueue_isc((union ctl_io *)ctsio); 554} 555 556/* 557 * ISC (Inter Shelf Communication) event handler. Events from the HA 558 * subsystem come in here. 559 */ 560static void 561ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 562{ 563 struct ctl_softc *ctl_softc; 564 union ctl_io *io; 565 struct ctl_prio *presio; 566 ctl_ha_status isc_status; 567 568 ctl_softc = control_softc; 569 io = NULL; 570 571 572#if 0 573 printf("CTL: Isc Msg event %d\n", event); 574#endif 575 if (event == CTL_HA_EVT_MSG_RECV) { 576 union ctl_ha_msg msg_info; 577 578 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 579 sizeof(msg_info), /*wait*/ 0); 580#if 0 581 printf("CTL: msg_type %d\n", msg_info.msg_type); 582#endif 583 if (isc_status != 0) { 584 printf("Error receiving message, status = %d\n", 585 isc_status); 586 return; 587 } 588 589 switch (msg_info.hdr.msg_type) { 590 case CTL_MSG_SERIALIZE: 591#if 0 592 printf("Serialize\n"); 593#endif 594 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 595 if (io == NULL) { 596 printf("ctl_isc_event_handler: can't allocate " 597 "ctl_io!\n"); 598 /* Bad Juju */ 599 /* Need to set busy and send msg back */ 600 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 601 msg_info.hdr.status = CTL_SCSI_ERROR; 602 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 603 msg_info.scsi.sense_len = 0; 604 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 605 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 606 } 607 goto bailout; 608 } 609 ctl_zero_io(io); 610 // populate ctsio from msg_info 611 io->io_hdr.io_type = CTL_IO_SCSI; 612 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 613 io->io_hdr.original_sc = msg_info.hdr.original_sc; 614#if 0 615 printf("pOrig %x\n", (int)msg_info.original_sc); 616#endif 617 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 618 CTL_FLAG_IO_ACTIVE; 619 /* 620 * If we're in serialization-only mode, we don't 621 * want to go through full done processing. Thus 622 * the COPY flag. 623 * 624 * XXX KDM add another flag that is more specific. 625 */ 626 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 627 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 628 io->io_hdr.nexus = msg_info.hdr.nexus; 629#if 0 630 printf("targ %d, port %d, iid %d, lun %d\n", 631 io->io_hdr.nexus.targ_target.id, 632 io->io_hdr.nexus.targ_port, 633 io->io_hdr.nexus.initid.id, 634 io->io_hdr.nexus.targ_lun); 635#endif 636 io->scsiio.tag_num = msg_info.scsi.tag_num; 637 io->scsiio.tag_type = msg_info.scsi.tag_type; 638 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 639 CTL_MAX_CDBLEN); 640 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 641 const struct ctl_cmd_entry *entry; 642 643 entry = ctl_get_cmd_entry(&io->scsiio); 644 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 645 io->io_hdr.flags |= 646 entry->flags & CTL_FLAG_DATA_MASK; 647 } 648 ctl_enqueue_isc(io); 649 break; 650 651 /* Performed on the Originating SC, XFER mode only */ 652 case CTL_MSG_DATAMOVE: { 653 struct ctl_sg_entry *sgl; 654 int i, j; 655 656 io = msg_info.hdr.original_sc; 657 if (io == NULL) { 658 printf("%s: original_sc == NULL!\n", __func__); 659 /* XXX KDM do something here */ 660 break; 661 } 662 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 663 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 664 /* 665 * Keep track of this, we need to send it back over 666 * when the datamove is complete. 667 */ 668 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 669 670 if (msg_info.dt.sg_sequence == 0) { 671 /* 672 * XXX KDM we use the preallocated S/G list 673 * here, but we'll need to change this to 674 * dynamic allocation if we need larger S/G 675 * lists. 676 */ 677 if (msg_info.dt.kern_sg_entries > 678 sizeof(io->io_hdr.remote_sglist) / 679 sizeof(io->io_hdr.remote_sglist[0])) { 680 printf("%s: number of S/G entries " 681 "needed %u > allocated num %zd\n", 682 __func__, 683 msg_info.dt.kern_sg_entries, 684 sizeof(io->io_hdr.remote_sglist)/ 685 sizeof(io->io_hdr.remote_sglist[0])); 686 687 /* 688 * XXX KDM send a message back to 689 * the other side to shut down the 690 * DMA. The error will come back 691 * through via the normal channel. 692 */ 693 break; 694 } 695 sgl = io->io_hdr.remote_sglist; 696 memset(sgl, 0, 697 sizeof(io->io_hdr.remote_sglist)); 698 699 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 700 701 io->scsiio.kern_sg_entries = 702 msg_info.dt.kern_sg_entries; 703 io->scsiio.rem_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.kern_data_len = 706 msg_info.dt.kern_data_len; 707 io->scsiio.kern_total_len = 708 msg_info.dt.kern_total_len; 709 io->scsiio.kern_data_resid = 710 msg_info.dt.kern_data_resid; 711 io->scsiio.kern_rel_offset = 712 msg_info.dt.kern_rel_offset; 713 /* 714 * Clear out per-DMA flags. 715 */ 716 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 717 /* 718 * Add per-DMA flags that are set for this 719 * particular DMA request. 720 */ 721 io->io_hdr.flags |= msg_info.dt.flags & 722 CTL_FLAG_RDMA_MASK; 723 } else 724 sgl = (struct ctl_sg_entry *) 725 io->scsiio.kern_data_ptr; 726 727 for (i = msg_info.dt.sent_sg_entries, j = 0; 728 i < (msg_info.dt.sent_sg_entries + 729 msg_info.dt.cur_sg_entries); i++, j++) { 730 sgl[i].addr = msg_info.dt.sg_list[j].addr; 731 sgl[i].len = msg_info.dt.sg_list[j].len; 732 733#if 0 734 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 735 __func__, 736 msg_info.dt.sg_list[j].addr, 737 msg_info.dt.sg_list[j].len, 738 sgl[i].addr, sgl[i].len, j, i); 739#endif 740 } 741#if 0 742 memcpy(&sgl[msg_info.dt.sent_sg_entries], 743 msg_info.dt.sg_list, 744 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 745#endif 746 747 /* 748 * If this is the last piece of the I/O, we've got 749 * the full S/G list. Queue processing in the thread. 750 * Otherwise wait for the next piece. 751 */ 752 if (msg_info.dt.sg_last != 0) 753 ctl_enqueue_isc(io); 754 break; 755 } 756 /* Performed on the Serializing (primary) SC, XFER mode only */ 757 case CTL_MSG_DATAMOVE_DONE: { 758 if (msg_info.hdr.serializing_sc == NULL) { 759 printf("%s: serializing_sc == NULL!\n", 760 __func__); 761 /* XXX KDM now what? */ 762 break; 763 } 764 /* 765 * We grab the sense information here in case 766 * there was a failure, so we can return status 767 * back to the initiator. 768 */ 769 io = msg_info.hdr.serializing_sc; 770 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 771 io->io_hdr.status = msg_info.hdr.status; 772 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 773 io->scsiio.sense_len = msg_info.scsi.sense_len; 774 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 775 io->io_hdr.port_status = msg_info.scsi.fetd_status; 776 io->scsiio.residual = msg_info.scsi.residual; 777 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 778 sizeof(io->scsiio.sense_data)); 779 ctl_enqueue_isc(io); 780 break; 781 } 782 783 /* Preformed on Originating SC, SER_ONLY mode */ 784 case CTL_MSG_R2R: 785 io = msg_info.hdr.original_sc; 786 if (io == NULL) { 787 printf("%s: Major Bummer\n", __func__); 788 return; 789 } else { 790#if 0 791 printf("pOrig %x\n",(int) ctsio); 792#endif 793 } 794 io->io_hdr.msg_type = CTL_MSG_R2R; 795 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 796 ctl_enqueue_isc(io); 797 break; 798 799 /* 800 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 801 * mode. 802 * Performed on the Originating (i.e. secondary) SC in XFER 803 * mode 804 */ 805 case CTL_MSG_FINISH_IO: 806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 807 ctl_isc_handler_finish_xfer(ctl_softc, 808 &msg_info); 809 else 810 ctl_isc_handler_finish_ser_only(ctl_softc, 811 &msg_info); 812 break; 813 814 /* Preformed on Originating SC */ 815 case CTL_MSG_BAD_JUJU: 816 io = msg_info.hdr.original_sc; 817 if (io == NULL) { 818 printf("%s: Bad JUJU!, original_sc is NULL!\n", 819 __func__); 820 break; 821 } 822 ctl_copy_sense_data(&msg_info, io); 823 /* 824 * IO should have already been cleaned up on other 825 * SC so clear this flag so we won't send a message 826 * back to finish the IO there. 827 */ 828 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 829 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 830 831 /* io = msg_info.hdr.serializing_sc; */ 832 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 833 ctl_enqueue_isc(io); 834 break; 835 836 /* Handle resets sent from the other side */ 837 case CTL_MSG_MANAGE_TASKS: { 838 struct ctl_taskio *taskio; 839 taskio = (struct ctl_taskio *)ctl_alloc_io( 840 (void *)ctl_softc->othersc_pool); 841 if (taskio == NULL) { 842 printf("ctl_isc_event_handler: can't allocate " 843 "ctl_io!\n"); 844 /* Bad Juju */ 845 /* should I just call the proper reset func 846 here??? */ 847 goto bailout; 848 } 849 ctl_zero_io((union ctl_io *)taskio); 850 taskio->io_hdr.io_type = CTL_IO_TASK; 851 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 852 taskio->io_hdr.nexus = msg_info.hdr.nexus; 853 taskio->task_action = msg_info.task.task_action; 854 taskio->tag_num = msg_info.task.tag_num; 855 taskio->tag_type = msg_info.task.tag_type; 856#ifdef CTL_TIME_IO 857 taskio->io_hdr.start_time = time_uptime; 858 getbintime(&taskio->io_hdr.start_bt); 859#if 0 860 cs_prof_gettime(&taskio->io_hdr.start_ticks); 861#endif 862#endif /* CTL_TIME_IO */ 863 ctl_run_task((union ctl_io *)taskio); 864 break; 865 } 866 /* Persistent Reserve action which needs attention */ 867 case CTL_MSG_PERS_ACTION: 868 presio = (struct ctl_prio *)ctl_alloc_io( 869 (void *)ctl_softc->othersc_pool); 870 if (presio == NULL) { 871 printf("ctl_isc_event_handler: can't allocate " 872 "ctl_io!\n"); 873 /* Bad Juju */ 874 /* Need to set busy and send msg back */ 875 goto bailout; 876 } 877 ctl_zero_io((union ctl_io *)presio); 878 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 879 presio->pr_msg = msg_info.pr; 880 ctl_enqueue_isc((union ctl_io *)presio); 881 break; 882 case CTL_MSG_SYNC_FE: 883 rcv_sync_msg = 1; 884 break; 885 case CTL_MSG_APS_LOCK: { 886 // It's quicker to execute this then to 887 // queue it. 888 struct ctl_lun *lun; 889 struct ctl_page_index *page_index; 890 struct copan_aps_subpage *current_sp; 891 uint32_t targ_lun; 892 893 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 894 lun = ctl_softc->ctl_luns[targ_lun]; 895 mtx_lock(&lun->lun_lock); 896 page_index = &lun->mode_pages.index[index_to_aps_page]; 897 current_sp = (struct copan_aps_subpage *) 898 (page_index->page_data + 899 (page_index->page_len * CTL_PAGE_CURRENT)); 900 901 current_sp->lock_active = msg_info.aps.lock_flag; 902 mtx_unlock(&lun->lun_lock); 903 break; 904 } 905 default: 906 printf("How did I get here?\n"); 907 } 908 } else if (event == CTL_HA_EVT_MSG_SENT) { 909 if (param != CTL_HA_STATUS_SUCCESS) { 910 printf("Bad status from ctl_ha_msg_send status %d\n", 911 param); 912 } 913 return; 914 } else if (event == CTL_HA_EVT_DISCONNECT) { 915 printf("CTL: Got a disconnect from Isc\n"); 916 return; 917 } else { 918 printf("ctl_isc_event_handler: Unknown event %d\n", event); 919 return; 920 } 921 922bailout: 923 return; 924} 925 926static void 927ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 928{ 929 struct scsi_sense_data *sense; 930 931 sense = &dest->scsiio.sense_data; 932 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 933 dest->scsiio.scsi_status = src->scsi.scsi_status; 934 dest->scsiio.sense_len = src->scsi.sense_len; 935 dest->io_hdr.status = src->hdr.status; 936} 937 938static int 939ctl_init(void) 940{ 941 struct ctl_softc *softc; 942 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 943 struct ctl_port *port; 944 uint8_t sc_id =0; 945 int i, error, retval; 946 //int isc_retval; 947 948 retval = 0; 949 ctl_pause_rtr = 0; 950 rcv_sync_msg = 0; 951 952 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 953 M_WAITOK | M_ZERO); 954 softc = control_softc; 955 956 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 957 "cam/ctl"); 958 959 softc->dev->si_drv1 = softc; 960 961 /* 962 * By default, return a "bad LUN" peripheral qualifier for unknown 963 * LUNs. The user can override this default using the tunable or 964 * sysctl. See the comment in ctl_inquiry_std() for more details. 965 */ 966 softc->inquiry_pq_no_lun = 1; 967 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 968 &softc->inquiry_pq_no_lun); 969 sysctl_ctx_init(&softc->sysctl_ctx); 970 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 971 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 972 CTLFLAG_RD, 0, "CAM Target Layer"); 973 974 if (softc->sysctl_tree == NULL) { 975 printf("%s: unable to allocate sysctl tree\n", __func__); 976 destroy_dev(softc->dev); 977 free(control_softc, M_DEVBUF); 978 control_softc = NULL; 979 return (ENOMEM); 980 } 981 982 SYSCTL_ADD_INT(&softc->sysctl_ctx, 983 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 984 "inquiry_pq_no_lun", CTLFLAG_RW, 985 &softc->inquiry_pq_no_lun, 0, 986 "Report no lun possible for invalid LUNs"); 987 988 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 989 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 990 softc->open_count = 0; 991 992 /* 993 * Default to actually sending a SYNCHRONIZE CACHE command down to 994 * the drive. 995 */ 996 softc->flags = CTL_FLAG_REAL_SYNC; 997 998 /* 999 * In Copan's HA scheme, the "master" and "slave" roles are 1000 * figured out through the slot the controller is in. Although it 1001 * is an active/active system, someone has to be in charge. 1002 */ 1003#ifdef NEEDTOPORT 1004 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1005#endif 1006 1007 if (sc_id == 0) { 1008 softc->flags |= CTL_FLAG_MASTER_SHELF; 1009 persis_offset = 0; 1010 } else 1011 persis_offset = CTL_MAX_INITIATORS; 1012 1013 /* 1014 * XXX KDM need to figure out where we want to get our target ID 1015 * and WWID. Is it different on each port? 1016 */ 1017 softc->target.id = 0; 1018 softc->target.wwid[0] = 0x12345678; 1019 softc->target.wwid[1] = 0x87654321; 1020 STAILQ_INIT(&softc->lun_list); 1021 STAILQ_INIT(&softc->pending_lun_queue); 1022 STAILQ_INIT(&softc->fe_list); 1023 STAILQ_INIT(&softc->port_list); 1024 STAILQ_INIT(&softc->be_list); 1025 STAILQ_INIT(&softc->io_pools); 1026 1027 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1028 &internal_pool)!= 0){ 1029 printf("ctl: can't allocate %d entry internal pool, " 1030 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1031 return (ENOMEM); 1032 } 1033 1034 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1035 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1036 printf("ctl: can't allocate %d entry emergency pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1038 ctl_pool_free(internal_pool); 1039 return (ENOMEM); 1040 } 1041 1042 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1043 &other_pool) != 0) 1044 { 1045 printf("ctl: can't allocate %d entry other SC pool, " 1046 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1047 ctl_pool_free(internal_pool); 1048 ctl_pool_free(emergency_pool); 1049 return (ENOMEM); 1050 } 1051 1052 softc->internal_pool = internal_pool; 1053 softc->emergency_pool = emergency_pool; 1054 softc->othersc_pool = other_pool; 1055 1056 if (worker_threads <= 0) 1057 worker_threads = max(1, mp_ncpus / 4); 1058 if (worker_threads > CTL_MAX_THREADS) 1059 worker_threads = CTL_MAX_THREADS; 1060 1061 for (i = 0; i < worker_threads; i++) { 1062 struct ctl_thread *thr = &softc->threads[i]; 1063 1064 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1065 thr->ctl_softc = softc; 1066 STAILQ_INIT(&thr->incoming_queue); 1067 STAILQ_INIT(&thr->rtr_queue); 1068 STAILQ_INIT(&thr->done_queue); 1069 STAILQ_INIT(&thr->isc_queue); 1070 1071 error = kproc_kthread_add(ctl_work_thread, thr, 1072 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1073 if (error != 0) { 1074 printf("error creating CTL work thread!\n"); 1075 ctl_pool_free(internal_pool); 1076 ctl_pool_free(emergency_pool); 1077 ctl_pool_free(other_pool); 1078 return (error); 1079 } 1080 } 1081 error = kproc_kthread_add(ctl_lun_thread, softc, 1082 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1083 if (error != 0) { 1084 printf("error creating CTL lun thread!\n"); 1085 ctl_pool_free(internal_pool); 1086 ctl_pool_free(emergency_pool); 1087 ctl_pool_free(other_pool); 1088 return (error); 1089 } 1090 if (bootverbose) 1091 printf("ctl: CAM Target Layer loaded\n"); 1092 1093 /* 1094 * Initialize the ioctl front end. 1095 */ 1096 ctl_frontend_register(&ioctl_frontend); 1097 port = &softc->ioctl_info.port; 1098 port->frontend = &ioctl_frontend; 1099 sprintf(softc->ioctl_info.port_name, "ioctl"); 1100 port->port_type = CTL_PORT_IOCTL; 1101 port->num_requested_ctl_io = 100; 1102 port->port_name = softc->ioctl_info.port_name; 1103 port->port_online = ctl_ioctl_online; 1104 port->port_offline = ctl_ioctl_offline; 1105 port->onoff_arg = &softc->ioctl_info; 1106 port->lun_enable = ctl_ioctl_lun_enable; 1107 port->lun_disable = ctl_ioctl_lun_disable; 1108 port->targ_lun_arg = &softc->ioctl_info; 1109 port->fe_datamove = ctl_ioctl_datamove; 1110 port->fe_done = ctl_ioctl_done; 1111 port->max_targets = 15; 1112 port->max_target_id = 15; 1113 1114 if (ctl_port_register(&softc->ioctl_info.port, 1115 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1116 printf("ctl: ioctl front end registration failed, will " 1117 "continue anyway\n"); 1118 } 1119 1120#ifdef CTL_IO_DELAY 1121 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1122 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1123 sizeof(struct callout), CTL_TIMER_BYTES); 1124 return (EINVAL); 1125 } 1126#endif /* CTL_IO_DELAY */ 1127 1128 return (0); 1129} 1130 1131void 1132ctl_shutdown(void) 1133{ 1134 struct ctl_softc *softc; 1135 struct ctl_lun *lun, *next_lun; 1136 struct ctl_io_pool *pool; 1137 1138 softc = (struct ctl_softc *)control_softc; 1139 1140 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1141 printf("ctl: ioctl front end deregistration failed\n"); 1142 1143 mtx_lock(&softc->ctl_lock); 1144 1145 /* 1146 * Free up each LUN. 1147 */ 1148 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1149 next_lun = STAILQ_NEXT(lun, links); 1150 ctl_free_lun(lun); 1151 } 1152 1153 mtx_unlock(&softc->ctl_lock); 1154 1155 ctl_frontend_deregister(&ioctl_frontend); 1156 1157 /* 1158 * This will rip the rug out from under any FETDs or anyone else 1159 * that has a pool allocated. Since we increment our module 1160 * refcount any time someone outside the main CTL module allocates 1161 * a pool, we shouldn't have any problems here. The user won't be 1162 * able to unload the CTL module until client modules have 1163 * successfully unloaded. 1164 */ 1165 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1166 ctl_pool_free(pool); 1167 1168#if 0 1169 ctl_shutdown_thread(softc->work_thread); 1170 mtx_destroy(&softc->queue_lock); 1171#endif 1172 1173 mtx_destroy(&softc->pool_lock); 1174 mtx_destroy(&softc->ctl_lock); 1175 1176 destroy_dev(softc->dev); 1177 1178 sysctl_ctx_free(&softc->sysctl_ctx); 1179 1180 free(control_softc, M_DEVBUF); 1181 control_softc = NULL; 1182 1183 if (bootverbose) 1184 printf("ctl: CAM Target Layer unloaded\n"); 1185} 1186 1187static int 1188ctl_module_event_handler(module_t mod, int what, void *arg) 1189{ 1190 1191 switch (what) { 1192 case MOD_LOAD: 1193 return (ctl_init()); 1194 case MOD_UNLOAD: 1195 return (EBUSY); 1196 default: 1197 return (EOPNOTSUPP); 1198 } 1199} 1200 1201/* 1202 * XXX KDM should we do some access checks here? Bump a reference count to 1203 * prevent a CTL module from being unloaded while someone has it open? 1204 */ 1205static int 1206ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1207{ 1208 return (0); 1209} 1210 1211static int 1212ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1213{ 1214 return (0); 1215} 1216 1217int 1218ctl_port_enable(ctl_port_type port_type) 1219{ 1220 struct ctl_softc *softc; 1221 struct ctl_port *port; 1222 1223 if (ctl_is_single == 0) { 1224 union ctl_ha_msg msg_info; 1225 int isc_retval; 1226 1227#if 0 1228 printf("%s: HA mode, synchronizing frontend enable\n", 1229 __func__); 1230#endif 1231 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1232 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1233 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1234 printf("Sync msg send error retval %d\n", isc_retval); 1235 } 1236 if (!rcv_sync_msg) { 1237 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1238 sizeof(msg_info), 1); 1239 } 1240#if 0 1241 printf("CTL:Frontend Enable\n"); 1242 } else { 1243 printf("%s: single mode, skipping frontend synchronization\n", 1244 __func__); 1245#endif 1246 } 1247 1248 softc = control_softc; 1249 1250 STAILQ_FOREACH(port, &softc->port_list, links) { 1251 if (port_type & port->port_type) 1252 { 1253#if 0 1254 printf("port %d\n", port->targ_port); 1255#endif 1256 ctl_port_online(port); 1257 } 1258 } 1259 1260 return (0); 1261} 1262 1263int 1264ctl_port_disable(ctl_port_type port_type) 1265{ 1266 struct ctl_softc *softc; 1267 struct ctl_port *port; 1268 1269 softc = control_softc; 1270 1271 STAILQ_FOREACH(port, &softc->port_list, links) { 1272 if (port_type & port->port_type) 1273 ctl_port_offline(port); 1274 } 1275 1276 return (0); 1277} 1278 1279/* 1280 * Returns 0 for success, 1 for failure. 1281 * Currently the only failure mode is if there aren't enough entries 1282 * allocated. So, in case of a failure, look at num_entries_dropped, 1283 * reallocate and try again. 1284 */ 1285int 1286ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1287 int *num_entries_filled, int *num_entries_dropped, 1288 ctl_port_type port_type, int no_virtual) 1289{ 1290 struct ctl_softc *softc; 1291 struct ctl_port *port; 1292 int entries_dropped, entries_filled; 1293 int retval; 1294 int i; 1295 1296 softc = control_softc; 1297 1298 retval = 0; 1299 entries_filled = 0; 1300 entries_dropped = 0; 1301 1302 i = 0; 1303 mtx_lock(&softc->ctl_lock); 1304 STAILQ_FOREACH(port, &softc->port_list, links) { 1305 struct ctl_port_entry *entry; 1306 1307 if ((port->port_type & port_type) == 0) 1308 continue; 1309 1310 if ((no_virtual != 0) 1311 && (port->virtual_port != 0)) 1312 continue; 1313 1314 if (entries_filled >= num_entries_alloced) { 1315 entries_dropped++; 1316 continue; 1317 } 1318 entry = &entries[i]; 1319 1320 entry->port_type = port->port_type; 1321 strlcpy(entry->port_name, port->port_name, 1322 sizeof(entry->port_name)); 1323 entry->physical_port = port->physical_port; 1324 entry->virtual_port = port->virtual_port; 1325 entry->wwnn = port->wwnn; 1326 entry->wwpn = port->wwpn; 1327 1328 i++; 1329 entries_filled++; 1330 } 1331 1332 mtx_unlock(&softc->ctl_lock); 1333 1334 if (entries_dropped > 0) 1335 retval = 1; 1336 1337 *num_entries_dropped = entries_dropped; 1338 *num_entries_filled = entries_filled; 1339 1340 return (retval); 1341} 1342 1343static void 1344ctl_ioctl_online(void *arg) 1345{ 1346 struct ctl_ioctl_info *ioctl_info; 1347 1348 ioctl_info = (struct ctl_ioctl_info *)arg; 1349 1350 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1351} 1352 1353static void 1354ctl_ioctl_offline(void *arg) 1355{ 1356 struct ctl_ioctl_info *ioctl_info; 1357 1358 ioctl_info = (struct ctl_ioctl_info *)arg; 1359 1360 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1361} 1362 1363/* 1364 * Remove an initiator by port number and initiator ID. 1365 * Returns 0 for success, -1 for failure. 1366 */ 1367int 1368ctl_remove_initiator(struct ctl_port *port, int iid) 1369{ 1370 struct ctl_softc *softc = control_softc; 1371 1372 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1373 1374 if (iid > CTL_MAX_INIT_PER_PORT) { 1375 printf("%s: initiator ID %u > maximun %u!\n", 1376 __func__, iid, CTL_MAX_INIT_PER_PORT); 1377 return (-1); 1378 } 1379 1380 mtx_lock(&softc->ctl_lock); 1381 port->wwpn_iid[iid].in_use--; 1382 port->wwpn_iid[iid].last_use = time_uptime; 1383 mtx_unlock(&softc->ctl_lock); 1384 1385 return (0); 1386} 1387 1388/* 1389 * Add an initiator to the initiator map. 1390 * Returns iid for success, < 0 for failure. 1391 */ 1392int 1393ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1394{ 1395 struct ctl_softc *softc = control_softc; 1396 time_t best_time; 1397 int i, best; 1398 1399 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1400 1401 if (iid >= CTL_MAX_INIT_PER_PORT) { 1402 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1403 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1404 free(name, M_CTL); 1405 return (-1); 1406 } 1407 1408 mtx_lock(&softc->ctl_lock); 1409 1410 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1411 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1412 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1413 iid = i; 1414 break; 1415 } 1416 if (name != NULL && port->wwpn_iid[i].name != NULL && 1417 strcmp(name, port->wwpn_iid[i].name) == 0) { 1418 iid = i; 1419 break; 1420 } 1421 } 1422 } 1423 1424 if (iid < 0) { 1425 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1426 if (port->wwpn_iid[i].in_use == 0 && 1427 port->wwpn_iid[i].wwpn == 0 && 1428 port->wwpn_iid[i].name == NULL) { 1429 iid = i; 1430 break; 1431 } 1432 } 1433 } 1434 1435 if (iid < 0) { 1436 best = -1; 1437 best_time = INT32_MAX; 1438 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1439 if (port->wwpn_iid[i].in_use == 0) { 1440 if (port->wwpn_iid[i].last_use < best_time) { 1441 best = i; 1442 best_time = port->wwpn_iid[i].last_use; 1443 } 1444 } 1445 } 1446 iid = best; 1447 } 1448 1449 if (iid < 0) { 1450 mtx_unlock(&softc->ctl_lock); 1451 free(name, M_CTL); 1452 return (-2); 1453 } 1454 1455 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1456 /* 1457 * This is not an error yet. 1458 */ 1459 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1460#if 0 1461 printf("%s: port %d iid %u WWPN %#jx arrived" 1462 " again\n", __func__, port->targ_port, 1463 iid, (uintmax_t)wwpn); 1464#endif 1465 goto take; 1466 } 1467 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1468 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1469#if 0 1470 printf("%s: port %d iid %u name '%s' arrived" 1471 " again\n", __func__, port->targ_port, 1472 iid, name); 1473#endif 1474 goto take; 1475 } 1476 1477 /* 1478 * This is an error, but what do we do about it? The 1479 * driver is telling us we have a new WWPN for this 1480 * initiator ID, so we pretty much need to use it. 1481 */ 1482 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1483 " but WWPN %#jx '%s' is still at that address\n", 1484 __func__, port->targ_port, iid, wwpn, name, 1485 (uintmax_t)port->wwpn_iid[iid].wwpn, 1486 port->wwpn_iid[iid].name); 1487 1488 /* 1489 * XXX KDM clear have_ca and ua_pending on each LUN for 1490 * this initiator. 1491 */ 1492 } 1493take: 1494 free(port->wwpn_iid[iid].name, M_CTL); 1495 port->wwpn_iid[iid].name = name; 1496 port->wwpn_iid[iid].wwpn = wwpn; 1497 port->wwpn_iid[iid].in_use++; 1498 mtx_unlock(&softc->ctl_lock); 1499 1500 return (iid); 1501} 1502 1503static int 1504ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1505{ 1506 int len; 1507 1508 switch (port->port_type) { 1509 case CTL_PORT_FC: 1510 { 1511 struct scsi_transportid_fcp *id = 1512 (struct scsi_transportid_fcp *)buf; 1513 if (port->wwpn_iid[iid].wwpn == 0) 1514 return (0); 1515 memset(id, 0, sizeof(*id)); 1516 id->format_protocol = SCSI_PROTO_FC; 1517 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1518 return (sizeof(*id)); 1519 } 1520 case CTL_PORT_ISCSI: 1521 { 1522 struct scsi_transportid_iscsi_port *id = 1523 (struct scsi_transportid_iscsi_port *)buf; 1524 if (port->wwpn_iid[iid].name == NULL) 1525 return (0); 1526 memset(id, 0, 256); 1527 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1528 SCSI_PROTO_ISCSI; 1529 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1530 len = roundup2(min(len, 252), 4); 1531 scsi_ulto2b(len, id->additional_length); 1532 return (sizeof(*id) + len); 1533 } 1534 case CTL_PORT_SAS: 1535 { 1536 struct scsi_transportid_sas *id = 1537 (struct scsi_transportid_sas *)buf; 1538 if (port->wwpn_iid[iid].wwpn == 0) 1539 return (0); 1540 memset(id, 0, sizeof(*id)); 1541 id->format_protocol = SCSI_PROTO_SAS; 1542 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1543 return (sizeof(*id)); 1544 } 1545 default: 1546 { 1547 struct scsi_transportid_spi *id = 1548 (struct scsi_transportid_spi *)buf; 1549 memset(id, 0, sizeof(*id)); 1550 id->format_protocol = SCSI_PROTO_SPI; 1551 scsi_ulto2b(iid, id->scsi_addr); 1552 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1553 return (sizeof(*id)); 1554 } 1555 } 1556} 1557 1558static int 1559ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1560{ 1561 return (0); 1562} 1563 1564static int 1565ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1566{ 1567 return (0); 1568} 1569 1570/* 1571 * Data movement routine for the CTL ioctl frontend port. 1572 */ 1573static int 1574ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1575{ 1576 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1577 struct ctl_sg_entry ext_entry, kern_entry; 1578 int ext_sglen, ext_sg_entries, kern_sg_entries; 1579 int ext_sg_start, ext_offset; 1580 int len_to_copy, len_copied; 1581 int kern_watermark, ext_watermark; 1582 int ext_sglist_malloced; 1583 int i, j; 1584 1585 ext_sglist_malloced = 0; 1586 ext_sg_start = 0; 1587 ext_offset = 0; 1588 1589 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1590 1591 /* 1592 * If this flag is set, fake the data transfer. 1593 */ 1594 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1595 ctsio->ext_data_filled = ctsio->ext_data_len; 1596 goto bailout; 1597 } 1598 1599 /* 1600 * To simplify things here, if we have a single buffer, stick it in 1601 * a S/G entry and just make it a single entry S/G list. 1602 */ 1603 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1604 int len_seen; 1605 1606 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1607 1608 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1609 M_WAITOK); 1610 ext_sglist_malloced = 1; 1611 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1612 ext_sglen) != 0) { 1613 ctl_set_internal_failure(ctsio, 1614 /*sks_valid*/ 0, 1615 /*retry_count*/ 0); 1616 goto bailout; 1617 } 1618 ext_sg_entries = ctsio->ext_sg_entries; 1619 len_seen = 0; 1620 for (i = 0; i < ext_sg_entries; i++) { 1621 if ((len_seen + ext_sglist[i].len) >= 1622 ctsio->ext_data_filled) { 1623 ext_sg_start = i; 1624 ext_offset = ctsio->ext_data_filled - len_seen; 1625 break; 1626 } 1627 len_seen += ext_sglist[i].len; 1628 } 1629 } else { 1630 ext_sglist = &ext_entry; 1631 ext_sglist->addr = ctsio->ext_data_ptr; 1632 ext_sglist->len = ctsio->ext_data_len; 1633 ext_sg_entries = 1; 1634 ext_sg_start = 0; 1635 ext_offset = ctsio->ext_data_filled; 1636 } 1637 1638 if (ctsio->kern_sg_entries > 0) { 1639 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1640 kern_sg_entries = ctsio->kern_sg_entries; 1641 } else { 1642 kern_sglist = &kern_entry; 1643 kern_sglist->addr = ctsio->kern_data_ptr; 1644 kern_sglist->len = ctsio->kern_data_len; 1645 kern_sg_entries = 1; 1646 } 1647 1648 1649 kern_watermark = 0; 1650 ext_watermark = ext_offset; 1651 len_copied = 0; 1652 for (i = ext_sg_start, j = 0; 1653 i < ext_sg_entries && j < kern_sg_entries;) { 1654 uint8_t *ext_ptr, *kern_ptr; 1655 1656 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1657 kern_sglist[j].len - kern_watermark); 1658 1659 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1660 ext_ptr = ext_ptr + ext_watermark; 1661 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1662 /* 1663 * XXX KDM fix this! 1664 */ 1665 panic("need to implement bus address support"); 1666#if 0 1667 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1668#endif 1669 } else 1670 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1671 kern_ptr = kern_ptr + kern_watermark; 1672 1673 kern_watermark += len_to_copy; 1674 ext_watermark += len_to_copy; 1675 1676 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1677 CTL_FLAG_DATA_IN) { 1678 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1679 "bytes to user\n", len_to_copy)); 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1681 "to %p\n", kern_ptr, ext_ptr)); 1682 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1683 ctl_set_internal_failure(ctsio, 1684 /*sks_valid*/ 0, 1685 /*retry_count*/ 0); 1686 goto bailout; 1687 } 1688 } else { 1689 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1690 "bytes from user\n", len_to_copy)); 1691 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1692 "to %p\n", ext_ptr, kern_ptr)); 1693 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1694 ctl_set_internal_failure(ctsio, 1695 /*sks_valid*/ 0, 1696 /*retry_count*/0); 1697 goto bailout; 1698 } 1699 } 1700 1701 len_copied += len_to_copy; 1702 1703 if (ext_sglist[i].len == ext_watermark) { 1704 i++; 1705 ext_watermark = 0; 1706 } 1707 1708 if (kern_sglist[j].len == kern_watermark) { 1709 j++; 1710 kern_watermark = 0; 1711 } 1712 } 1713 1714 ctsio->ext_data_filled += len_copied; 1715 1716 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1717 "kern_sg_entries: %d\n", ext_sg_entries, 1718 kern_sg_entries)); 1719 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1720 "kern_data_len = %d\n", ctsio->ext_data_len, 1721 ctsio->kern_data_len)); 1722 1723 1724 /* XXX KDM set residual?? */ 1725bailout: 1726 1727 if (ext_sglist_malloced != 0) 1728 free(ext_sglist, M_CTL); 1729 1730 return (CTL_RETVAL_COMPLETE); 1731} 1732 1733/* 1734 * Serialize a command that went down the "wrong" side, and so was sent to 1735 * this controller for execution. The logic is a little different than the 1736 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1737 * sent back to the other side, but in the success case, we execute the 1738 * command on this side (XFER mode) or tell the other side to execute it 1739 * (SER_ONLY mode). 1740 */ 1741static int 1742ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1743{ 1744 struct ctl_softc *ctl_softc; 1745 union ctl_ha_msg msg_info; 1746 struct ctl_lun *lun; 1747 int retval = 0; 1748 uint32_t targ_lun; 1749 1750 ctl_softc = control_softc; 1751 1752 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1753 lun = ctl_softc->ctl_luns[targ_lun]; 1754 if (lun==NULL) 1755 { 1756 /* 1757 * Why isn't LUN defined? The other side wouldn't 1758 * send a cmd if the LUN is undefined. 1759 */ 1760 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1761 1762 /* "Logical unit not supported" */ 1763 ctl_set_sense_data(&msg_info.scsi.sense_data, 1764 lun, 1765 /*sense_format*/SSD_TYPE_NONE, 1766 /*current_error*/ 1, 1767 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1768 /*asc*/ 0x25, 1769 /*ascq*/ 0x00, 1770 SSD_ELEM_NONE); 1771 1772 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1773 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1774 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1775 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1776 msg_info.hdr.serializing_sc = NULL; 1777 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1778 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1779 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1780 } 1781 return(1); 1782 1783 } 1784 1785 mtx_lock(&lun->lun_lock); 1786 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1787 1788 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1789 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1790 ooa_links))) { 1791 case CTL_ACTION_BLOCK: 1792 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1793 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1794 blocked_links); 1795 break; 1796 case CTL_ACTION_PASS: 1797 case CTL_ACTION_SKIP: 1798 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1799 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1800 ctl_enqueue_rtr((union ctl_io *)ctsio); 1801 } else { 1802 1803 /* send msg back to other side */ 1804 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1805 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1806 msg_info.hdr.msg_type = CTL_MSG_R2R; 1807#if 0 1808 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1809#endif 1810 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1811 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1812 } 1813 } 1814 break; 1815 case CTL_ACTION_OVERLAP: 1816 /* OVERLAPPED COMMANDS ATTEMPTED */ 1817 ctl_set_sense_data(&msg_info.scsi.sense_data, 1818 lun, 1819 /*sense_format*/SSD_TYPE_NONE, 1820 /*current_error*/ 1, 1821 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1822 /*asc*/ 0x4E, 1823 /*ascq*/ 0x00, 1824 SSD_ELEM_NONE); 1825 1826 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1827 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1828 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1829 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1830 msg_info.hdr.serializing_sc = NULL; 1831 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1832#if 0 1833 printf("BAD JUJU:Major Bummer Overlap\n"); 1834#endif 1835 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1836 retval = 1; 1837 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1838 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1839 } 1840 break; 1841 case CTL_ACTION_OVERLAP_TAG: 1842 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1843 ctl_set_sense_data(&msg_info.scsi.sense_data, 1844 lun, 1845 /*sense_format*/SSD_TYPE_NONE, 1846 /*current_error*/ 1, 1847 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1848 /*asc*/ 0x4D, 1849 /*ascq*/ ctsio->tag_num & 0xff, 1850 SSD_ELEM_NONE); 1851 1852 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1853 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1854 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1855 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1856 msg_info.hdr.serializing_sc = NULL; 1857 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1858#if 0 1859 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1860#endif 1861 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1862 retval = 1; 1863 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1864 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1865 } 1866 break; 1867 case CTL_ACTION_ERROR: 1868 default: 1869 /* "Internal target failure" */ 1870 ctl_set_sense_data(&msg_info.scsi.sense_data, 1871 lun, 1872 /*sense_format*/SSD_TYPE_NONE, 1873 /*current_error*/ 1, 1874 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1875 /*asc*/ 0x44, 1876 /*ascq*/ 0x00, 1877 SSD_ELEM_NONE); 1878 1879 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1880 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1881 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1882 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1883 msg_info.hdr.serializing_sc = NULL; 1884 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1885#if 0 1886 printf("BAD JUJU:Major Bummer HW Error\n"); 1887#endif 1888 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1889 retval = 1; 1890 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1891 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1892 } 1893 break; 1894 } 1895 mtx_unlock(&lun->lun_lock); 1896 return (retval); 1897} 1898 1899static int 1900ctl_ioctl_submit_wait(union ctl_io *io) 1901{ 1902 struct ctl_fe_ioctl_params params; 1903 ctl_fe_ioctl_state last_state; 1904 int done, retval; 1905 1906 retval = 0; 1907 1908 bzero(¶ms, sizeof(params)); 1909 1910 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1911 cv_init(¶ms.sem, "ctlioccv"); 1912 params.state = CTL_IOCTL_INPROG; 1913 last_state = params.state; 1914 1915 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1916 1917 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1918 1919 /* This shouldn't happen */ 1920 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1921 return (retval); 1922 1923 done = 0; 1924 1925 do { 1926 mtx_lock(¶ms.ioctl_mtx); 1927 /* 1928 * Check the state here, and don't sleep if the state has 1929 * already changed (i.e. wakeup has already occured, but we 1930 * weren't waiting yet). 1931 */ 1932 if (params.state == last_state) { 1933 /* XXX KDM cv_wait_sig instead? */ 1934 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1935 } 1936 last_state = params.state; 1937 1938 switch (params.state) { 1939 case CTL_IOCTL_INPROG: 1940 /* Why did we wake up? */ 1941 /* XXX KDM error here? */ 1942 mtx_unlock(¶ms.ioctl_mtx); 1943 break; 1944 case CTL_IOCTL_DATAMOVE: 1945 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1946 1947 /* 1948 * change last_state back to INPROG to avoid 1949 * deadlock on subsequent data moves. 1950 */ 1951 params.state = last_state = CTL_IOCTL_INPROG; 1952 1953 mtx_unlock(¶ms.ioctl_mtx); 1954 ctl_ioctl_do_datamove(&io->scsiio); 1955 /* 1956 * Note that in some cases, most notably writes, 1957 * this will queue the I/O and call us back later. 1958 * In other cases, generally reads, this routine 1959 * will immediately call back and wake us up, 1960 * probably using our own context. 1961 */ 1962 io->scsiio.be_move_done(io); 1963 break; 1964 case CTL_IOCTL_DONE: 1965 mtx_unlock(¶ms.ioctl_mtx); 1966 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1967 done = 1; 1968 break; 1969 default: 1970 mtx_unlock(¶ms.ioctl_mtx); 1971 /* XXX KDM error here? */ 1972 break; 1973 } 1974 } while (done == 0); 1975 1976 mtx_destroy(¶ms.ioctl_mtx); 1977 cv_destroy(¶ms.sem); 1978 1979 return (CTL_RETVAL_COMPLETE); 1980} 1981 1982static void 1983ctl_ioctl_datamove(union ctl_io *io) 1984{ 1985 struct ctl_fe_ioctl_params *params; 1986 1987 params = (struct ctl_fe_ioctl_params *) 1988 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1989 1990 mtx_lock(¶ms->ioctl_mtx); 1991 params->state = CTL_IOCTL_DATAMOVE; 1992 cv_broadcast(¶ms->sem); 1993 mtx_unlock(¶ms->ioctl_mtx); 1994} 1995 1996static void 1997ctl_ioctl_done(union ctl_io *io) 1998{ 1999 struct ctl_fe_ioctl_params *params; 2000 2001 params = (struct ctl_fe_ioctl_params *) 2002 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2003 2004 mtx_lock(¶ms->ioctl_mtx); 2005 params->state = CTL_IOCTL_DONE; 2006 cv_broadcast(¶ms->sem); 2007 mtx_unlock(¶ms->ioctl_mtx); 2008} 2009 2010static void 2011ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2012{ 2013 struct ctl_fe_ioctl_startstop_info *sd_info; 2014 2015 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2016 2017 sd_info->hs_info.status = metatask->status; 2018 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2019 sd_info->hs_info.luns_complete = 2020 metatask->taskinfo.startstop.luns_complete; 2021 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2022 2023 cv_broadcast(&sd_info->sem); 2024} 2025 2026static void 2027ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2028{ 2029 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2030 2031 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2032 2033 mtx_lock(fe_bbr_info->lock); 2034 fe_bbr_info->bbr_info->status = metatask->status; 2035 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2036 fe_bbr_info->wakeup_done = 1; 2037 mtx_unlock(fe_bbr_info->lock); 2038 2039 cv_broadcast(&fe_bbr_info->sem); 2040} 2041 2042/* 2043 * Returns 0 for success, errno for failure. 2044 */ 2045static int 2046ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2047 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2048{ 2049 union ctl_io *io; 2050 int retval; 2051 2052 retval = 0; 2053 2054 mtx_lock(&lun->lun_lock); 2055 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2056 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2057 ooa_links)) { 2058 struct ctl_ooa_entry *entry; 2059 2060 /* 2061 * If we've got more than we can fit, just count the 2062 * remaining entries. 2063 */ 2064 if (*cur_fill_num >= ooa_hdr->alloc_num) 2065 continue; 2066 2067 entry = &kern_entries[*cur_fill_num]; 2068 2069 entry->tag_num = io->scsiio.tag_num; 2070 entry->lun_num = lun->lun; 2071#ifdef CTL_TIME_IO 2072 entry->start_bt = io->io_hdr.start_bt; 2073#endif 2074 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2075 entry->cdb_len = io->scsiio.cdb_len; 2076 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2077 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2078 2079 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2080 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2081 2082 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2090 } 2091 mtx_unlock(&lun->lun_lock); 2092 2093 return (retval); 2094} 2095 2096static void * 2097ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2098 size_t error_str_len) 2099{ 2100 void *kptr; 2101 2102 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2103 2104 if (copyin(user_addr, kptr, len) != 0) { 2105 snprintf(error_str, error_str_len, "Error copying %d bytes " 2106 "from user address %p to kernel address %p", len, 2107 user_addr, kptr); 2108 free(kptr, M_CTL); 2109 return (NULL); 2110 } 2111 2112 return (kptr); 2113} 2114 2115static void 2116ctl_free_args(int num_args, struct ctl_be_arg *args) 2117{ 2118 int i; 2119 2120 if (args == NULL) 2121 return; 2122 2123 for (i = 0; i < num_args; i++) { 2124 free(args[i].kname, M_CTL); 2125 free(args[i].kvalue, M_CTL); 2126 } 2127 2128 free(args, M_CTL); 2129} 2130 2131static struct ctl_be_arg * 2132ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2133 char *error_str, size_t error_str_len) 2134{ 2135 struct ctl_be_arg *args; 2136 int i; 2137 2138 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2139 error_str, error_str_len); 2140 2141 if (args == NULL) 2142 goto bailout; 2143 2144 for (i = 0; i < num_args; i++) { 2145 args[i].kname = NULL; 2146 args[i].kvalue = NULL; 2147 } 2148 2149 for (i = 0; i < num_args; i++) { 2150 uint8_t *tmpptr; 2151 2152 args[i].kname = ctl_copyin_alloc(args[i].name, 2153 args[i].namelen, error_str, error_str_len); 2154 if (args[i].kname == NULL) 2155 goto bailout; 2156 2157 if (args[i].kname[args[i].namelen - 1] != '\0') { 2158 snprintf(error_str, error_str_len, "Argument %d " 2159 "name is not NUL-terminated", i); 2160 goto bailout; 2161 } 2162 2163 if (args[i].flags & CTL_BEARG_RD) { 2164 tmpptr = ctl_copyin_alloc(args[i].value, 2165 args[i].vallen, error_str, error_str_len); 2166 if (tmpptr == NULL) 2167 goto bailout; 2168 if ((args[i].flags & CTL_BEARG_ASCII) 2169 && (tmpptr[args[i].vallen - 1] != '\0')) { 2170 snprintf(error_str, error_str_len, "Argument " 2171 "%d value is not NUL-terminated", i); 2172 goto bailout; 2173 } 2174 args[i].kvalue = tmpptr; 2175 } else { 2176 args[i].kvalue = malloc(args[i].vallen, 2177 M_CTL, M_WAITOK | M_ZERO); 2178 } 2179 } 2180 2181 return (args); 2182bailout: 2183 2184 ctl_free_args(num_args, args); 2185 2186 return (NULL); 2187} 2188 2189static void 2190ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2191{ 2192 int i; 2193 2194 for (i = 0; i < num_args; i++) { 2195 if (args[i].flags & CTL_BEARG_WR) 2196 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2197 } 2198} 2199 2200/* 2201 * Escape characters that are illegal or not recommended in XML. 2202 */ 2203int 2204ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2205{ 2206 int retval; 2207 2208 retval = 0; 2209 2210 for (; *str; str++) { 2211 switch (*str) { 2212 case '&': 2213 retval = sbuf_printf(sb, "&"); 2214 break; 2215 case '>': 2216 retval = sbuf_printf(sb, ">"); 2217 break; 2218 case '<': 2219 retval = sbuf_printf(sb, "<"); 2220 break; 2221 default: 2222 retval = sbuf_putc(sb, *str); 2223 break; 2224 } 2225 2226 if (retval != 0) 2227 break; 2228 2229 } 2230 2231 return (retval); 2232} 2233 2234static int 2235ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2236 struct thread *td) 2237{ 2238 struct ctl_softc *softc; 2239 int retval; 2240 2241 softc = control_softc; 2242 2243 retval = 0; 2244 2245 switch (cmd) { 2246 case CTL_IO: { 2247 union ctl_io *io; 2248 void *pool_tmp; 2249 2250 /* 2251 * If we haven't been "enabled", don't allow any SCSI I/O 2252 * to this FETD. 2253 */ 2254 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2255 retval = EPERM; 2256 break; 2257 } 2258 2259 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2260 if (io == NULL) { 2261 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2262 retval = ENOSPC; 2263 break; 2264 } 2265 2266 /* 2267 * Need to save the pool reference so it doesn't get 2268 * spammed by the user's ctl_io. 2269 */ 2270 pool_tmp = io->io_hdr.pool; 2271 2272 memcpy(io, (void *)addr, sizeof(*io)); 2273 2274 io->io_hdr.pool = pool_tmp; 2275 /* 2276 * No status yet, so make sure the status is set properly. 2277 */ 2278 io->io_hdr.status = CTL_STATUS_NONE; 2279 2280 /* 2281 * The user sets the initiator ID, target and LUN IDs. 2282 */ 2283 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2284 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2285 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2286 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2287 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2288 2289 retval = ctl_ioctl_submit_wait(io); 2290 2291 if (retval != 0) { 2292 ctl_free_io(io); 2293 break; 2294 } 2295 2296 memcpy((void *)addr, io, sizeof(*io)); 2297 2298 /* return this to our pool */ 2299 ctl_free_io(io); 2300 2301 break; 2302 } 2303 case CTL_ENABLE_PORT: 2304 case CTL_DISABLE_PORT: 2305 case CTL_SET_PORT_WWNS: { 2306 struct ctl_port *port; 2307 struct ctl_port_entry *entry; 2308 2309 entry = (struct ctl_port_entry *)addr; 2310 2311 mtx_lock(&softc->ctl_lock); 2312 STAILQ_FOREACH(port, &softc->port_list, links) { 2313 int action, done; 2314 2315 action = 0; 2316 done = 0; 2317 2318 if ((entry->port_type == CTL_PORT_NONE) 2319 && (entry->targ_port == port->targ_port)) { 2320 /* 2321 * If the user only wants to enable or 2322 * disable or set WWNs on a specific port, 2323 * do the operation and we're done. 2324 */ 2325 action = 1; 2326 done = 1; 2327 } else if (entry->port_type & port->port_type) { 2328 /* 2329 * Compare the user's type mask with the 2330 * particular frontend type to see if we 2331 * have a match. 2332 */ 2333 action = 1; 2334 done = 0; 2335 2336 /* 2337 * Make sure the user isn't trying to set 2338 * WWNs on multiple ports at the same time. 2339 */ 2340 if (cmd == CTL_SET_PORT_WWNS) { 2341 printf("%s: Can't set WWNs on " 2342 "multiple ports\n", __func__); 2343 retval = EINVAL; 2344 break; 2345 } 2346 } 2347 if (action != 0) { 2348 /* 2349 * XXX KDM we have to drop the lock here, 2350 * because the online/offline operations 2351 * can potentially block. We need to 2352 * reference count the frontends so they 2353 * can't go away, 2354 */ 2355 mtx_unlock(&softc->ctl_lock); 2356 2357 if (cmd == CTL_ENABLE_PORT) { 2358 struct ctl_lun *lun; 2359 2360 STAILQ_FOREACH(lun, &softc->lun_list, 2361 links) { 2362 port->lun_enable(port->targ_lun_arg, 2363 lun->target, 2364 lun->lun); 2365 } 2366 2367 ctl_port_online(port); 2368 } else if (cmd == CTL_DISABLE_PORT) { 2369 struct ctl_lun *lun; 2370 2371 ctl_port_offline(port); 2372 2373 STAILQ_FOREACH(lun, &softc->lun_list, 2374 links) { 2375 port->lun_disable( 2376 port->targ_lun_arg, 2377 lun->target, 2378 lun->lun); 2379 } 2380 } 2381 2382 mtx_lock(&softc->ctl_lock); 2383 2384 if (cmd == CTL_SET_PORT_WWNS) 2385 ctl_port_set_wwns(port, 2386 (entry->flags & CTL_PORT_WWNN_VALID) ? 2387 1 : 0, entry->wwnn, 2388 (entry->flags & CTL_PORT_WWPN_VALID) ? 2389 1 : 0, entry->wwpn); 2390 } 2391 if (done != 0) 2392 break; 2393 } 2394 mtx_unlock(&softc->ctl_lock); 2395 break; 2396 } 2397 case CTL_GET_PORT_LIST: { 2398 struct ctl_port *port; 2399 struct ctl_port_list *list; 2400 int i; 2401 2402 list = (struct ctl_port_list *)addr; 2403 2404 if (list->alloc_len != (list->alloc_num * 2405 sizeof(struct ctl_port_entry))) { 2406 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2407 "alloc_num %u * sizeof(struct ctl_port_entry) " 2408 "%zu\n", __func__, list->alloc_len, 2409 list->alloc_num, sizeof(struct ctl_port_entry)); 2410 retval = EINVAL; 2411 break; 2412 } 2413 list->fill_len = 0; 2414 list->fill_num = 0; 2415 list->dropped_num = 0; 2416 i = 0; 2417 mtx_lock(&softc->ctl_lock); 2418 STAILQ_FOREACH(port, &softc->port_list, links) { 2419 struct ctl_port_entry entry, *list_entry; 2420 2421 if (list->fill_num >= list->alloc_num) { 2422 list->dropped_num++; 2423 continue; 2424 } 2425 2426 entry.port_type = port->port_type; 2427 strlcpy(entry.port_name, port->port_name, 2428 sizeof(entry.port_name)); 2429 entry.targ_port = port->targ_port; 2430 entry.physical_port = port->physical_port; 2431 entry.virtual_port = port->virtual_port; 2432 entry.wwnn = port->wwnn; 2433 entry.wwpn = port->wwpn; 2434 if (port->status & CTL_PORT_STATUS_ONLINE) 2435 entry.online = 1; 2436 else 2437 entry.online = 0; 2438 2439 list_entry = &list->entries[i]; 2440 2441 retval = copyout(&entry, list_entry, sizeof(entry)); 2442 if (retval != 0) { 2443 printf("%s: CTL_GET_PORT_LIST: copyout " 2444 "returned %d\n", __func__, retval); 2445 break; 2446 } 2447 i++; 2448 list->fill_num++; 2449 list->fill_len += sizeof(entry); 2450 } 2451 mtx_unlock(&softc->ctl_lock); 2452 2453 /* 2454 * If this is non-zero, we had a copyout fault, so there's 2455 * probably no point in attempting to set the status inside 2456 * the structure. 2457 */ 2458 if (retval != 0) 2459 break; 2460 2461 if (list->dropped_num > 0) 2462 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2463 else 2464 list->status = CTL_PORT_LIST_OK; 2465 break; 2466 } 2467 case CTL_DUMP_OOA: { 2468 struct ctl_lun *lun; 2469 union ctl_io *io; 2470 char printbuf[128]; 2471 struct sbuf sb; 2472 2473 mtx_lock(&softc->ctl_lock); 2474 printf("Dumping OOA queues:\n"); 2475 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2476 mtx_lock(&lun->lun_lock); 2477 for (io = (union ctl_io *)TAILQ_FIRST( 2478 &lun->ooa_queue); io != NULL; 2479 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2480 ooa_links)) { 2481 sbuf_new(&sb, printbuf, sizeof(printbuf), 2482 SBUF_FIXEDLEN); 2483 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2484 (intmax_t)lun->lun, 2485 io->scsiio.tag_num, 2486 (io->io_hdr.flags & 2487 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2488 (io->io_hdr.flags & 2489 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2490 (io->io_hdr.flags & 2491 CTL_FLAG_ABORT) ? " ABORT" : "", 2492 (io->io_hdr.flags & 2493 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2494 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2495 sbuf_finish(&sb); 2496 printf("%s\n", sbuf_data(&sb)); 2497 } 2498 mtx_unlock(&lun->lun_lock); 2499 } 2500 printf("OOA queues dump done\n"); 2501 mtx_unlock(&softc->ctl_lock); 2502 break; 2503 } 2504 case CTL_GET_OOA: { 2505 struct ctl_lun *lun; 2506 struct ctl_ooa *ooa_hdr; 2507 struct ctl_ooa_entry *entries; 2508 uint32_t cur_fill_num; 2509 2510 ooa_hdr = (struct ctl_ooa *)addr; 2511 2512 if ((ooa_hdr->alloc_len == 0) 2513 || (ooa_hdr->alloc_num == 0)) { 2514 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2515 "must be non-zero\n", __func__, 2516 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2517 retval = EINVAL; 2518 break; 2519 } 2520 2521 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2522 sizeof(struct ctl_ooa_entry))) { 2523 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2524 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2525 __func__, ooa_hdr->alloc_len, 2526 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2527 retval = EINVAL; 2528 break; 2529 } 2530 2531 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2532 if (entries == NULL) { 2533 printf("%s: could not allocate %d bytes for OOA " 2534 "dump\n", __func__, ooa_hdr->alloc_len); 2535 retval = ENOMEM; 2536 break; 2537 } 2538 2539 mtx_lock(&softc->ctl_lock); 2540 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2541 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2542 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2543 mtx_unlock(&softc->ctl_lock); 2544 free(entries, M_CTL); 2545 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2546 __func__, (uintmax_t)ooa_hdr->lun_num); 2547 retval = EINVAL; 2548 break; 2549 } 2550 2551 cur_fill_num = 0; 2552 2553 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2554 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2555 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2556 ooa_hdr, entries); 2557 if (retval != 0) 2558 break; 2559 } 2560 if (retval != 0) { 2561 mtx_unlock(&softc->ctl_lock); 2562 free(entries, M_CTL); 2563 break; 2564 } 2565 } else { 2566 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2567 2568 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2569 entries); 2570 } 2571 mtx_unlock(&softc->ctl_lock); 2572 2573 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2574 ooa_hdr->fill_len = ooa_hdr->fill_num * 2575 sizeof(struct ctl_ooa_entry); 2576 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2577 if (retval != 0) { 2578 printf("%s: error copying out %d bytes for OOA dump\n", 2579 __func__, ooa_hdr->fill_len); 2580 } 2581 2582 getbintime(&ooa_hdr->cur_bt); 2583 2584 if (cur_fill_num > ooa_hdr->alloc_num) { 2585 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2586 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2587 } else { 2588 ooa_hdr->dropped_num = 0; 2589 ooa_hdr->status = CTL_OOA_OK; 2590 } 2591 2592 free(entries, M_CTL); 2593 break; 2594 } 2595 case CTL_CHECK_OOA: { 2596 union ctl_io *io; 2597 struct ctl_lun *lun; 2598 struct ctl_ooa_info *ooa_info; 2599 2600 2601 ooa_info = (struct ctl_ooa_info *)addr; 2602 2603 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2604 ooa_info->status = CTL_OOA_INVALID_LUN; 2605 break; 2606 } 2607 mtx_lock(&softc->ctl_lock); 2608 lun = softc->ctl_luns[ooa_info->lun_id]; 2609 if (lun == NULL) { 2610 mtx_unlock(&softc->ctl_lock); 2611 ooa_info->status = CTL_OOA_INVALID_LUN; 2612 break; 2613 } 2614 mtx_lock(&lun->lun_lock); 2615 mtx_unlock(&softc->ctl_lock); 2616 ooa_info->num_entries = 0; 2617 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2618 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2619 &io->io_hdr, ooa_links)) { 2620 ooa_info->num_entries++; 2621 } 2622 mtx_unlock(&lun->lun_lock); 2623 2624 ooa_info->status = CTL_OOA_SUCCESS; 2625 2626 break; 2627 } 2628 case CTL_HARD_START: 2629 case CTL_HARD_STOP: { 2630 struct ctl_fe_ioctl_startstop_info ss_info; 2631 struct cfi_metatask *metatask; 2632 struct mtx hs_mtx; 2633 2634 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2635 2636 cv_init(&ss_info.sem, "hard start/stop cv" ); 2637 2638 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2639 if (metatask == NULL) { 2640 retval = ENOMEM; 2641 mtx_destroy(&hs_mtx); 2642 break; 2643 } 2644 2645 if (cmd == CTL_HARD_START) 2646 metatask->tasktype = CFI_TASK_STARTUP; 2647 else 2648 metatask->tasktype = CFI_TASK_SHUTDOWN; 2649 2650 metatask->callback = ctl_ioctl_hard_startstop_callback; 2651 metatask->callback_arg = &ss_info; 2652 2653 cfi_action(metatask); 2654 2655 /* Wait for the callback */ 2656 mtx_lock(&hs_mtx); 2657 cv_wait_sig(&ss_info.sem, &hs_mtx); 2658 mtx_unlock(&hs_mtx); 2659 2660 /* 2661 * All information has been copied from the metatask by the 2662 * time cv_broadcast() is called, so we free the metatask here. 2663 */ 2664 cfi_free_metatask(metatask); 2665 2666 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2667 2668 mtx_destroy(&hs_mtx); 2669 break; 2670 } 2671 case CTL_BBRREAD: { 2672 struct ctl_bbrread_info *bbr_info; 2673 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2674 struct mtx bbr_mtx; 2675 struct cfi_metatask *metatask; 2676 2677 bbr_info = (struct ctl_bbrread_info *)addr; 2678 2679 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2680 2681 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2682 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2683 2684 fe_bbr_info.bbr_info = bbr_info; 2685 fe_bbr_info.lock = &bbr_mtx; 2686 2687 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2688 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2689 2690 if (metatask == NULL) { 2691 mtx_destroy(&bbr_mtx); 2692 cv_destroy(&fe_bbr_info.sem); 2693 retval = ENOMEM; 2694 break; 2695 } 2696 metatask->tasktype = CFI_TASK_BBRREAD; 2697 metatask->callback = ctl_ioctl_bbrread_callback; 2698 metatask->callback_arg = &fe_bbr_info; 2699 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2700 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2701 metatask->taskinfo.bbrread.len = bbr_info->len; 2702 2703 cfi_action(metatask); 2704 2705 mtx_lock(&bbr_mtx); 2706 while (fe_bbr_info.wakeup_done == 0) 2707 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2708 mtx_unlock(&bbr_mtx); 2709 2710 bbr_info->status = metatask->status; 2711 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2712 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2713 memcpy(&bbr_info->sense_data, 2714 &metatask->taskinfo.bbrread.sense_data, 2715 ctl_min(sizeof(bbr_info->sense_data), 2716 sizeof(metatask->taskinfo.bbrread.sense_data))); 2717 2718 cfi_free_metatask(metatask); 2719 2720 mtx_destroy(&bbr_mtx); 2721 cv_destroy(&fe_bbr_info.sem); 2722 2723 break; 2724 } 2725 case CTL_DELAY_IO: { 2726 struct ctl_io_delay_info *delay_info; 2727#ifdef CTL_IO_DELAY 2728 struct ctl_lun *lun; 2729#endif /* CTL_IO_DELAY */ 2730 2731 delay_info = (struct ctl_io_delay_info *)addr; 2732 2733#ifdef CTL_IO_DELAY 2734 mtx_lock(&softc->ctl_lock); 2735 2736 if ((delay_info->lun_id > CTL_MAX_LUNS) 2737 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2738 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2739 } else { 2740 lun = softc->ctl_luns[delay_info->lun_id]; 2741 mtx_lock(&lun->lun_lock); 2742 2743 delay_info->status = CTL_DELAY_STATUS_OK; 2744 2745 switch (delay_info->delay_type) { 2746 case CTL_DELAY_TYPE_CONT: 2747 break; 2748 case CTL_DELAY_TYPE_ONESHOT: 2749 break; 2750 default: 2751 delay_info->status = 2752 CTL_DELAY_STATUS_INVALID_TYPE; 2753 break; 2754 } 2755 2756 switch (delay_info->delay_loc) { 2757 case CTL_DELAY_LOC_DATAMOVE: 2758 lun->delay_info.datamove_type = 2759 delay_info->delay_type; 2760 lun->delay_info.datamove_delay = 2761 delay_info->delay_secs; 2762 break; 2763 case CTL_DELAY_LOC_DONE: 2764 lun->delay_info.done_type = 2765 delay_info->delay_type; 2766 lun->delay_info.done_delay = 2767 delay_info->delay_secs; 2768 break; 2769 default: 2770 delay_info->status = 2771 CTL_DELAY_STATUS_INVALID_LOC; 2772 break; 2773 } 2774 mtx_unlock(&lun->lun_lock); 2775 } 2776 2777 mtx_unlock(&softc->ctl_lock); 2778#else 2779 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2780#endif /* CTL_IO_DELAY */ 2781 break; 2782 } 2783 case CTL_REALSYNC_SET: { 2784 int *syncstate; 2785 2786 syncstate = (int *)addr; 2787 2788 mtx_lock(&softc->ctl_lock); 2789 switch (*syncstate) { 2790 case 0: 2791 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2792 break; 2793 case 1: 2794 softc->flags |= CTL_FLAG_REAL_SYNC; 2795 break; 2796 default: 2797 retval = EINVAL; 2798 break; 2799 } 2800 mtx_unlock(&softc->ctl_lock); 2801 break; 2802 } 2803 case CTL_REALSYNC_GET: { 2804 int *syncstate; 2805 2806 syncstate = (int*)addr; 2807 2808 mtx_lock(&softc->ctl_lock); 2809 if (softc->flags & CTL_FLAG_REAL_SYNC) 2810 *syncstate = 1; 2811 else 2812 *syncstate = 0; 2813 mtx_unlock(&softc->ctl_lock); 2814 2815 break; 2816 } 2817 case CTL_SETSYNC: 2818 case CTL_GETSYNC: { 2819 struct ctl_sync_info *sync_info; 2820 struct ctl_lun *lun; 2821 2822 sync_info = (struct ctl_sync_info *)addr; 2823 2824 mtx_lock(&softc->ctl_lock); 2825 lun = softc->ctl_luns[sync_info->lun_id]; 2826 if (lun == NULL) { 2827 mtx_unlock(&softc->ctl_lock); 2828 sync_info->status = CTL_GS_SYNC_NO_LUN; 2829 } 2830 /* 2831 * Get or set the sync interval. We're not bounds checking 2832 * in the set case, hopefully the user won't do something 2833 * silly. 2834 */ 2835 mtx_lock(&lun->lun_lock); 2836 mtx_unlock(&softc->ctl_lock); 2837 if (cmd == CTL_GETSYNC) 2838 sync_info->sync_interval = lun->sync_interval; 2839 else 2840 lun->sync_interval = sync_info->sync_interval; 2841 mtx_unlock(&lun->lun_lock); 2842 2843 sync_info->status = CTL_GS_SYNC_OK; 2844 2845 break; 2846 } 2847 case CTL_GETSTATS: { 2848 struct ctl_stats *stats; 2849 struct ctl_lun *lun; 2850 int i; 2851 2852 stats = (struct ctl_stats *)addr; 2853 2854 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2855 stats->alloc_len) { 2856 stats->status = CTL_SS_NEED_MORE_SPACE; 2857 stats->num_luns = softc->num_luns; 2858 break; 2859 } 2860 /* 2861 * XXX KDM no locking here. If the LUN list changes, 2862 * things can blow up. 2863 */ 2864 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2865 i++, lun = STAILQ_NEXT(lun, links)) { 2866 retval = copyout(&lun->stats, &stats->lun_stats[i], 2867 sizeof(lun->stats)); 2868 if (retval != 0) 2869 break; 2870 } 2871 stats->num_luns = softc->num_luns; 2872 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2873 softc->num_luns; 2874 stats->status = CTL_SS_OK; 2875#ifdef CTL_TIME_IO 2876 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2877#else 2878 stats->flags = CTL_STATS_FLAG_NONE; 2879#endif 2880 getnanouptime(&stats->timestamp); 2881 break; 2882 } 2883 case CTL_ERROR_INJECT: { 2884 struct ctl_error_desc *err_desc, *new_err_desc; 2885 struct ctl_lun *lun; 2886 2887 err_desc = (struct ctl_error_desc *)addr; 2888 2889 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2890 M_WAITOK | M_ZERO); 2891 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2892 2893 mtx_lock(&softc->ctl_lock); 2894 lun = softc->ctl_luns[err_desc->lun_id]; 2895 if (lun == NULL) { 2896 mtx_unlock(&softc->ctl_lock); 2897 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2898 __func__, (uintmax_t)err_desc->lun_id); 2899 retval = EINVAL; 2900 break; 2901 } 2902 mtx_lock(&lun->lun_lock); 2903 mtx_unlock(&softc->ctl_lock); 2904 2905 /* 2906 * We could do some checking here to verify the validity 2907 * of the request, but given the complexity of error 2908 * injection requests, the checking logic would be fairly 2909 * complex. 2910 * 2911 * For now, if the request is invalid, it just won't get 2912 * executed and might get deleted. 2913 */ 2914 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2915 2916 /* 2917 * XXX KDM check to make sure the serial number is unique, 2918 * in case we somehow manage to wrap. That shouldn't 2919 * happen for a very long time, but it's the right thing to 2920 * do. 2921 */ 2922 new_err_desc->serial = lun->error_serial; 2923 err_desc->serial = lun->error_serial; 2924 lun->error_serial++; 2925 2926 mtx_unlock(&lun->lun_lock); 2927 break; 2928 } 2929 case CTL_ERROR_INJECT_DELETE: { 2930 struct ctl_error_desc *delete_desc, *desc, *desc2; 2931 struct ctl_lun *lun; 2932 int delete_done; 2933 2934 delete_desc = (struct ctl_error_desc *)addr; 2935 delete_done = 0; 2936 2937 mtx_lock(&softc->ctl_lock); 2938 lun = softc->ctl_luns[delete_desc->lun_id]; 2939 if (lun == NULL) { 2940 mtx_unlock(&softc->ctl_lock); 2941 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2942 __func__, (uintmax_t)delete_desc->lun_id); 2943 retval = EINVAL; 2944 break; 2945 } 2946 mtx_lock(&lun->lun_lock); 2947 mtx_unlock(&softc->ctl_lock); 2948 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2949 if (desc->serial != delete_desc->serial) 2950 continue; 2951 2952 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2953 links); 2954 free(desc, M_CTL); 2955 delete_done = 1; 2956 } 2957 mtx_unlock(&lun->lun_lock); 2958 if (delete_done == 0) { 2959 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2960 "error serial %ju on LUN %u\n", __func__, 2961 delete_desc->serial, delete_desc->lun_id); 2962 retval = EINVAL; 2963 break; 2964 } 2965 break; 2966 } 2967 case CTL_DUMP_STRUCTS: { 2968 int i, j, k, idx; 2969 struct ctl_port *port; 2970 struct ctl_frontend *fe; 2971 2972 mtx_lock(&softc->ctl_lock); 2973 printf("CTL Persistent Reservation information start:\n"); 2974 for (i = 0; i < CTL_MAX_LUNS; i++) { 2975 struct ctl_lun *lun; 2976 2977 lun = softc->ctl_luns[i]; 2978 2979 if ((lun == NULL) 2980 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2981 continue; 2982 2983 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2984 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2985 idx = j * CTL_MAX_INIT_PER_PORT + k; 2986 if (lun->per_res[idx].registered == 0) 2987 continue; 2988 printf(" LUN %d port %d iid %d key " 2989 "%#jx\n", i, j, k, 2990 (uintmax_t)scsi_8btou64( 2991 lun->per_res[idx].res_key.key)); 2992 } 2993 } 2994 } 2995 printf("CTL Persistent Reservation information end\n"); 2996 printf("CTL Ports:\n"); 2997 STAILQ_FOREACH(port, &softc->port_list, links) { 2998 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2999 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3000 port->frontend->name, port->port_type, 3001 port->physical_port, port->virtual_port, 3002 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3003 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3004 if (port->wwpn_iid[j].in_use == 0 && 3005 port->wwpn_iid[j].wwpn == 0 && 3006 port->wwpn_iid[j].name == NULL) 3007 continue; 3008 3009 printf(" iid %u use %d WWPN %#jx '%s'\n", 3010 j, port->wwpn_iid[j].in_use, 3011 (uintmax_t)port->wwpn_iid[j].wwpn, 3012 port->wwpn_iid[j].name); 3013 } 3014 } 3015 printf("CTL Port information end\n"); 3016 mtx_unlock(&softc->ctl_lock); 3017 /* 3018 * XXX KDM calling this without a lock. We'd likely want 3019 * to drop the lock before calling the frontend's dump 3020 * routine anyway. 3021 */ 3022 printf("CTL Frontends:\n"); 3023 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3024 printf(" Frontend '%s'\n", fe->name); 3025 if (fe->fe_dump != NULL) 3026 fe->fe_dump(); 3027 } 3028 printf("CTL Frontend information end\n"); 3029 break; 3030 } 3031 case CTL_LUN_REQ: { 3032 struct ctl_lun_req *lun_req; 3033 struct ctl_backend_driver *backend; 3034 3035 lun_req = (struct ctl_lun_req *)addr; 3036 3037 backend = ctl_backend_find(lun_req->backend); 3038 if (backend == NULL) { 3039 lun_req->status = CTL_LUN_ERROR; 3040 snprintf(lun_req->error_str, 3041 sizeof(lun_req->error_str), 3042 "Backend \"%s\" not found.", 3043 lun_req->backend); 3044 break; 3045 } 3046 if (lun_req->num_be_args > 0) { 3047 lun_req->kern_be_args = ctl_copyin_args( 3048 lun_req->num_be_args, 3049 lun_req->be_args, 3050 lun_req->error_str, 3051 sizeof(lun_req->error_str)); 3052 if (lun_req->kern_be_args == NULL) { 3053 lun_req->status = CTL_LUN_ERROR; 3054 break; 3055 } 3056 } 3057 3058 retval = backend->ioctl(dev, cmd, addr, flag, td); 3059 3060 if (lun_req->num_be_args > 0) { 3061 ctl_copyout_args(lun_req->num_be_args, 3062 lun_req->kern_be_args); 3063 ctl_free_args(lun_req->num_be_args, 3064 lun_req->kern_be_args); 3065 } 3066 break; 3067 } 3068 case CTL_LUN_LIST: { 3069 struct sbuf *sb; 3070 struct ctl_lun *lun; 3071 struct ctl_lun_list *list; 3072 struct ctl_option *opt; 3073 3074 list = (struct ctl_lun_list *)addr; 3075 3076 /* 3077 * Allocate a fixed length sbuf here, based on the length 3078 * of the user's buffer. We could allocate an auto-extending 3079 * buffer, and then tell the user how much larger our 3080 * amount of data is than his buffer, but that presents 3081 * some problems: 3082 * 3083 * 1. The sbuf(9) routines use a blocking malloc, and so 3084 * we can't hold a lock while calling them with an 3085 * auto-extending buffer. 3086 * 3087 * 2. There is not currently a LUN reference counting 3088 * mechanism, outside of outstanding transactions on 3089 * the LUN's OOA queue. So a LUN could go away on us 3090 * while we're getting the LUN number, backend-specific 3091 * information, etc. Thus, given the way things 3092 * currently work, we need to hold the CTL lock while 3093 * grabbing LUN information. 3094 * 3095 * So, from the user's standpoint, the best thing to do is 3096 * allocate what he thinks is a reasonable buffer length, 3097 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3098 * double the buffer length and try again. (And repeat 3099 * that until he succeeds.) 3100 */ 3101 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3102 if (sb == NULL) { 3103 list->status = CTL_LUN_LIST_ERROR; 3104 snprintf(list->error_str, sizeof(list->error_str), 3105 "Unable to allocate %d bytes for LUN list", 3106 list->alloc_len); 3107 break; 3108 } 3109 3110 sbuf_printf(sb, "<ctllunlist>\n"); 3111 3112 mtx_lock(&softc->ctl_lock); 3113 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3114 mtx_lock(&lun->lun_lock); 3115 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3116 (uintmax_t)lun->lun); 3117 3118 /* 3119 * Bail out as soon as we see that we've overfilled 3120 * the buffer. 3121 */ 3122 if (retval != 0) 3123 break; 3124 3125 retval = sbuf_printf(sb, "\t<backend_type>%s" 3126 "</backend_type>\n", 3127 (lun->backend == NULL) ? "none" : 3128 lun->backend->name); 3129 3130 if (retval != 0) 3131 break; 3132 3133 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3134 lun->be_lun->lun_type); 3135 3136 if (retval != 0) 3137 break; 3138 3139 if (lun->backend == NULL) { 3140 retval = sbuf_printf(sb, "</lun>\n"); 3141 if (retval != 0) 3142 break; 3143 continue; 3144 } 3145 3146 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3147 (lun->be_lun->maxlba > 0) ? 3148 lun->be_lun->maxlba + 1 : 0); 3149 3150 if (retval != 0) 3151 break; 3152 3153 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3154 lun->be_lun->blocksize); 3155 3156 if (retval != 0) 3157 break; 3158 3159 retval = sbuf_printf(sb, "\t<serial_number>"); 3160 3161 if (retval != 0) 3162 break; 3163 3164 retval = ctl_sbuf_printf_esc(sb, 3165 lun->be_lun->serial_num); 3166 3167 if (retval != 0) 3168 break; 3169 3170 retval = sbuf_printf(sb, "</serial_number>\n"); 3171 3172 if (retval != 0) 3173 break; 3174 3175 retval = sbuf_printf(sb, "\t<device_id>"); 3176 3177 if (retval != 0) 3178 break; 3179 3180 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3181 3182 if (retval != 0) 3183 break; 3184 3185 retval = sbuf_printf(sb, "</device_id>\n"); 3186 3187 if (retval != 0) 3188 break; 3189 3190 if (lun->backend->lun_info != NULL) { 3191 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3192 if (retval != 0) 3193 break; 3194 } 3195 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3196 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3197 opt->name, opt->value, opt->name); 3198 if (retval != 0) 3199 break; 3200 } 3201 3202 retval = sbuf_printf(sb, "</lun>\n"); 3203 3204 if (retval != 0) 3205 break; 3206 mtx_unlock(&lun->lun_lock); 3207 } 3208 if (lun != NULL) 3209 mtx_unlock(&lun->lun_lock); 3210 mtx_unlock(&softc->ctl_lock); 3211 3212 if ((retval != 0) 3213 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3214 retval = 0; 3215 sbuf_delete(sb); 3216 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3217 snprintf(list->error_str, sizeof(list->error_str), 3218 "Out of space, %d bytes is too small", 3219 list->alloc_len); 3220 break; 3221 } 3222 3223 sbuf_finish(sb); 3224 3225 retval = copyout(sbuf_data(sb), list->lun_xml, 3226 sbuf_len(sb) + 1); 3227 3228 list->fill_len = sbuf_len(sb) + 1; 3229 list->status = CTL_LUN_LIST_OK; 3230 sbuf_delete(sb); 3231 break; 3232 } 3233 case CTL_ISCSI: { 3234 struct ctl_iscsi *ci; 3235 struct ctl_frontend *fe; 3236 3237 ci = (struct ctl_iscsi *)addr; 3238 3239 fe = ctl_frontend_find("iscsi"); 3240 if (fe == NULL) { 3241 ci->status = CTL_ISCSI_ERROR; 3242 snprintf(ci->error_str, sizeof(ci->error_str), 3243 "Frontend \"iscsi\" not found."); 3244 break; 3245 } 3246 3247 retval = fe->ioctl(dev, cmd, addr, flag, td); 3248 break; 3249 } 3250 case CTL_PORT_REQ: { 3251 struct ctl_req *req; 3252 struct ctl_frontend *fe; 3253 3254 req = (struct ctl_req *)addr; 3255 3256 fe = ctl_frontend_find(req->driver); 3257 if (fe == NULL) { 3258 req->status = CTL_LUN_ERROR; 3259 snprintf(req->error_str, sizeof(req->error_str), 3260 "Frontend \"%s\" not found.", req->driver); 3261 break; 3262 } 3263 if (req->num_args > 0) { 3264 req->kern_args = ctl_copyin_args(req->num_args, 3265 req->args, req->error_str, sizeof(req->error_str)); 3266 if (req->kern_args == NULL) { 3267 req->status = CTL_LUN_ERROR; 3268 break; 3269 } 3270 } 3271 3272 retval = fe->ioctl(dev, cmd, addr, flag, td); 3273 3274 if (req->num_args > 0) { 3275 ctl_copyout_args(req->num_args, req->kern_args); 3276 ctl_free_args(req->num_args, req->kern_args); 3277 } 3278 break; 3279 } 3280 case CTL_PORT_LIST: { 3281 struct sbuf *sb; 3282 struct ctl_port *port; 3283 struct ctl_lun_list *list; 3284 struct ctl_option *opt; 3285 3286 list = (struct ctl_lun_list *)addr; 3287 3288 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3289 if (sb == NULL) { 3290 list->status = CTL_LUN_LIST_ERROR; 3291 snprintf(list->error_str, sizeof(list->error_str), 3292 "Unable to allocate %d bytes for LUN list", 3293 list->alloc_len); 3294 break; 3295 } 3296 3297 sbuf_printf(sb, "<ctlportlist>\n"); 3298 3299 mtx_lock(&softc->ctl_lock); 3300 STAILQ_FOREACH(port, &softc->port_list, links) { 3301 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3302 (uintmax_t)port->targ_port); 3303 3304 /* 3305 * Bail out as soon as we see that we've overfilled 3306 * the buffer. 3307 */ 3308 if (retval != 0) 3309 break; 3310 3311 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3312 "</frontend_type>\n", port->frontend->name); 3313 if (retval != 0) 3314 break; 3315 3316 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3317 port->port_type); 3318 if (retval != 0) 3319 break; 3320 3321 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3322 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3323 if (retval != 0) 3324 break; 3325 3326 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3327 port->port_name); 3328 if (retval != 0) 3329 break; 3330 3331 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3332 port->physical_port); 3333 if (retval != 0) 3334 break; 3335 3336 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3337 port->virtual_port); 3338 if (retval != 0) 3339 break; 3340 3341 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3342 (uintmax_t)port->wwnn); 3343 if (retval != 0) 3344 break; 3345 3346 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3347 (uintmax_t)port->wwpn); 3348 if (retval != 0) 3349 break; 3350 3351 if (port->port_info != NULL) { 3352 retval = port->port_info(port->onoff_arg, sb); 3353 if (retval != 0) 3354 break; 3355 } 3356 STAILQ_FOREACH(opt, &port->options, links) { 3357 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3358 opt->name, opt->value, opt->name); 3359 if (retval != 0) 3360 break; 3361 } 3362 3363 retval = sbuf_printf(sb, "</targ_port>\n"); 3364 if (retval != 0) 3365 break; 3366 } 3367 mtx_unlock(&softc->ctl_lock); 3368 3369 if ((retval != 0) 3370 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3371 retval = 0; 3372 sbuf_delete(sb); 3373 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3374 snprintf(list->error_str, sizeof(list->error_str), 3375 "Out of space, %d bytes is too small", 3376 list->alloc_len); 3377 break; 3378 } 3379 3380 sbuf_finish(sb); 3381 3382 retval = copyout(sbuf_data(sb), list->lun_xml, 3383 sbuf_len(sb) + 1); 3384 3385 list->fill_len = sbuf_len(sb) + 1; 3386 list->status = CTL_LUN_LIST_OK; 3387 sbuf_delete(sb); 3388 break; 3389 } 3390 default: { 3391 /* XXX KDM should we fix this? */ 3392#if 0 3393 struct ctl_backend_driver *backend; 3394 unsigned int type; 3395 int found; 3396 3397 found = 0; 3398 3399 /* 3400 * We encode the backend type as the ioctl type for backend 3401 * ioctls. So parse it out here, and then search for a 3402 * backend of this type. 3403 */ 3404 type = _IOC_TYPE(cmd); 3405 3406 STAILQ_FOREACH(backend, &softc->be_list, links) { 3407 if (backend->type == type) { 3408 found = 1; 3409 break; 3410 } 3411 } 3412 if (found == 0) { 3413 printf("ctl: unknown ioctl command %#lx or backend " 3414 "%d\n", cmd, type); 3415 retval = EINVAL; 3416 break; 3417 } 3418 retval = backend->ioctl(dev, cmd, addr, flag, td); 3419#endif 3420 retval = ENOTTY; 3421 break; 3422 } 3423 } 3424 return (retval); 3425} 3426 3427uint32_t 3428ctl_get_initindex(struct ctl_nexus *nexus) 3429{ 3430 if (nexus->targ_port < CTL_MAX_PORTS) 3431 return (nexus->initid.id + 3432 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3433 else 3434 return (nexus->initid.id + 3435 ((nexus->targ_port - CTL_MAX_PORTS) * 3436 CTL_MAX_INIT_PER_PORT)); 3437} 3438 3439uint32_t 3440ctl_get_resindex(struct ctl_nexus *nexus) 3441{ 3442 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3443} 3444 3445uint32_t 3446ctl_port_idx(int port_num) 3447{ 3448 if (port_num < CTL_MAX_PORTS) 3449 return(port_num); 3450 else 3451 return(port_num - CTL_MAX_PORTS); 3452} 3453 3454static uint32_t 3455ctl_map_lun(int port_num, uint32_t lun_id) 3456{ 3457 struct ctl_port *port; 3458 3459 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3460 if (port == NULL) 3461 return (UINT32_MAX); 3462 if (port->lun_map == NULL) 3463 return (lun_id); 3464 return (port->lun_map(port->targ_lun_arg, lun_id)); 3465} 3466 3467static uint32_t 3468ctl_map_lun_back(int port_num, uint32_t lun_id) 3469{ 3470 struct ctl_port *port; 3471 uint32_t i; 3472 3473 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3474 if (port->lun_map == NULL) 3475 return (lun_id); 3476 for (i = 0; i < CTL_MAX_LUNS; i++) { 3477 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3478 return (i); 3479 } 3480 return (UINT32_MAX); 3481} 3482 3483/* 3484 * Note: This only works for bitmask sizes that are at least 32 bits, and 3485 * that are a power of 2. 3486 */ 3487int 3488ctl_ffz(uint32_t *mask, uint32_t size) 3489{ 3490 uint32_t num_chunks, num_pieces; 3491 int i, j; 3492 3493 num_chunks = (size >> 5); 3494 if (num_chunks == 0) 3495 num_chunks++; 3496 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3497 3498 for (i = 0; i < num_chunks; i++) { 3499 for (j = 0; j < num_pieces; j++) { 3500 if ((mask[i] & (1 << j)) == 0) 3501 return ((i << 5) + j); 3502 } 3503 } 3504 3505 return (-1); 3506} 3507 3508int 3509ctl_set_mask(uint32_t *mask, uint32_t bit) 3510{ 3511 uint32_t chunk, piece; 3512 3513 chunk = bit >> 5; 3514 piece = bit % (sizeof(uint32_t) * 8); 3515 3516 if ((mask[chunk] & (1 << piece)) != 0) 3517 return (-1); 3518 else 3519 mask[chunk] |= (1 << piece); 3520 3521 return (0); 3522} 3523 3524int 3525ctl_clear_mask(uint32_t *mask, uint32_t bit) 3526{ 3527 uint32_t chunk, piece; 3528 3529 chunk = bit >> 5; 3530 piece = bit % (sizeof(uint32_t) * 8); 3531 3532 if ((mask[chunk] & (1 << piece)) == 0) 3533 return (-1); 3534 else 3535 mask[chunk] &= ~(1 << piece); 3536 3537 return (0); 3538} 3539 3540int 3541ctl_is_set(uint32_t *mask, uint32_t bit) 3542{ 3543 uint32_t chunk, piece; 3544 3545 chunk = bit >> 5; 3546 piece = bit % (sizeof(uint32_t) * 8); 3547 3548 if ((mask[chunk] & (1 << piece)) == 0) 3549 return (0); 3550 else 3551 return (1); 3552} 3553 3554#ifdef unused 3555/* 3556 * The bus, target and lun are optional, they can be filled in later. 3557 * can_wait is used to determine whether we can wait on the malloc or not. 3558 */ 3559union ctl_io* 3560ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3561 uint32_t targ_lun, int can_wait) 3562{ 3563 union ctl_io *io; 3564 3565 if (can_wait) 3566 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3567 else 3568 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3569 3570 if (io != NULL) { 3571 io->io_hdr.io_type = io_type; 3572 io->io_hdr.targ_port = targ_port; 3573 /* 3574 * XXX KDM this needs to change/go away. We need to move 3575 * to a preallocated pool of ctl_scsiio structures. 3576 */ 3577 io->io_hdr.nexus.targ_target.id = targ_target; 3578 io->io_hdr.nexus.targ_lun = targ_lun; 3579 } 3580 3581 return (io); 3582} 3583 3584void 3585ctl_kfree_io(union ctl_io *io) 3586{ 3587 free(io, M_CTL); 3588} 3589#endif /* unused */ 3590 3591/* 3592 * ctl_softc, pool_type, total_ctl_io are passed in. 3593 * npool is passed out. 3594 */ 3595int 3596ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3597 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3598{ 3599 uint32_t i; 3600 union ctl_io *cur_io, *next_io; 3601 struct ctl_io_pool *pool; 3602 int retval; 3603 3604 retval = 0; 3605 3606 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3607 M_NOWAIT | M_ZERO); 3608 if (pool == NULL) { 3609 retval = ENOMEM; 3610 goto bailout; 3611 } 3612 3613 pool->type = pool_type; 3614 pool->ctl_softc = ctl_softc; 3615 3616 mtx_lock(&ctl_softc->pool_lock); 3617 pool->id = ctl_softc->cur_pool_id++; 3618 mtx_unlock(&ctl_softc->pool_lock); 3619 3620 pool->flags = CTL_POOL_FLAG_NONE; 3621 pool->refcount = 1; /* Reference for validity. */ 3622 STAILQ_INIT(&pool->free_queue); 3623 3624 /* 3625 * XXX KDM other options here: 3626 * - allocate a page at a time 3627 * - allocate one big chunk of memory. 3628 * Page allocation might work well, but would take a little more 3629 * tracking. 3630 */ 3631 for (i = 0; i < total_ctl_io; i++) { 3632 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3633 M_NOWAIT); 3634 if (cur_io == NULL) { 3635 retval = ENOMEM; 3636 break; 3637 } 3638 cur_io->io_hdr.pool = pool; 3639 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3640 pool->total_ctl_io++; 3641 pool->free_ctl_io++; 3642 } 3643 3644 if (retval != 0) { 3645 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3646 cur_io != NULL; cur_io = next_io) { 3647 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3648 links); 3649 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3650 ctl_io_hdr, links); 3651 free(cur_io, M_CTLIO); 3652 } 3653 3654 free(pool, M_CTL); 3655 goto bailout; 3656 } 3657 mtx_lock(&ctl_softc->pool_lock); 3658 ctl_softc->num_pools++; 3659 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3660 /* 3661 * Increment our usage count if this is an external consumer, so we 3662 * can't get unloaded until the external consumer (most likely a 3663 * FETD) unloads and frees his pool. 3664 * 3665 * XXX KDM will this increment the caller's module use count, or 3666 * mine? 3667 */ 3668#if 0 3669 if ((pool_type != CTL_POOL_EMERGENCY) 3670 && (pool_type != CTL_POOL_INTERNAL) 3671 && (pool_type != CTL_POOL_4OTHERSC)) 3672 MOD_INC_USE_COUNT; 3673#endif 3674 3675 mtx_unlock(&ctl_softc->pool_lock); 3676 3677 *npool = pool; 3678 3679bailout: 3680 3681 return (retval); 3682} 3683 3684static int 3685ctl_pool_acquire(struct ctl_io_pool *pool) 3686{ 3687 3688 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3689 3690 if (pool->flags & CTL_POOL_FLAG_INVALID) 3691 return (EINVAL); 3692 3693 pool->refcount++; 3694 3695 return (0); 3696} 3697 3698static void 3699ctl_pool_release(struct ctl_io_pool *pool) 3700{ 3701 struct ctl_softc *ctl_softc = pool->ctl_softc; 3702 union ctl_io *io; 3703 3704 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3705 3706 if (--pool->refcount != 0) 3707 return; 3708 3709 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3710 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3711 links); 3712 free(io, M_CTLIO); 3713 } 3714 3715 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3716 ctl_softc->num_pools--; 3717 3718 /* 3719 * XXX KDM will this decrement the caller's usage count or mine? 3720 */ 3721#if 0 3722 if ((pool->type != CTL_POOL_EMERGENCY) 3723 && (pool->type != CTL_POOL_INTERNAL) 3724 && (pool->type != CTL_POOL_4OTHERSC)) 3725 MOD_DEC_USE_COUNT; 3726#endif 3727 3728 free(pool, M_CTL); 3729} 3730 3731void 3732ctl_pool_free(struct ctl_io_pool *pool) 3733{ 3734 struct ctl_softc *ctl_softc; 3735 3736 if (pool == NULL) 3737 return; 3738 3739 ctl_softc = pool->ctl_softc; 3740 mtx_lock(&ctl_softc->pool_lock); 3741 pool->flags |= CTL_POOL_FLAG_INVALID; 3742 ctl_pool_release(pool); 3743 mtx_unlock(&ctl_softc->pool_lock); 3744} 3745 3746/* 3747 * This routine does not block (except for spinlocks of course). 3748 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3749 * possible. 3750 */ 3751union ctl_io * 3752ctl_alloc_io(void *pool_ref) 3753{ 3754 union ctl_io *io; 3755 struct ctl_softc *ctl_softc; 3756 struct ctl_io_pool *pool, *npool; 3757 struct ctl_io_pool *emergency_pool; 3758 3759 pool = (struct ctl_io_pool *)pool_ref; 3760 3761 if (pool == NULL) { 3762 printf("%s: pool is NULL\n", __func__); 3763 return (NULL); 3764 } 3765 3766 emergency_pool = NULL; 3767 3768 ctl_softc = pool->ctl_softc; 3769 3770 mtx_lock(&ctl_softc->pool_lock); 3771 /* 3772 * First, try to get the io structure from the user's pool. 3773 */ 3774 if (ctl_pool_acquire(pool) == 0) { 3775 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3776 if (io != NULL) { 3777 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3778 pool->total_allocated++; 3779 pool->free_ctl_io--; 3780 mtx_unlock(&ctl_softc->pool_lock); 3781 return (io); 3782 } else 3783 ctl_pool_release(pool); 3784 } 3785 /* 3786 * If he doesn't have any io structures left, search for an 3787 * emergency pool and grab one from there. 3788 */ 3789 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3790 if (npool->type != CTL_POOL_EMERGENCY) 3791 continue; 3792 3793 if (ctl_pool_acquire(npool) != 0) 3794 continue; 3795 3796 emergency_pool = npool; 3797 3798 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3799 if (io != NULL) { 3800 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3801 npool->total_allocated++; 3802 npool->free_ctl_io--; 3803 mtx_unlock(&ctl_softc->pool_lock); 3804 return (io); 3805 } else 3806 ctl_pool_release(npool); 3807 } 3808 3809 /* Drop the spinlock before we malloc */ 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 3812 /* 3813 * The emergency pool (if it exists) didn't have one, so try an 3814 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3815 */ 3816 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3817 if (io != NULL) { 3818 /* 3819 * If the emergency pool exists but is empty, add this 3820 * ctl_io to its list when it gets freed. 3821 */ 3822 if (emergency_pool != NULL) { 3823 mtx_lock(&ctl_softc->pool_lock); 3824 if (ctl_pool_acquire(emergency_pool) == 0) { 3825 io->io_hdr.pool = emergency_pool; 3826 emergency_pool->total_ctl_io++; 3827 /* 3828 * Need to bump this, otherwise 3829 * total_allocated and total_freed won't 3830 * match when we no longer have anything 3831 * outstanding. 3832 */ 3833 emergency_pool->total_allocated++; 3834 } 3835 mtx_unlock(&ctl_softc->pool_lock); 3836 } else 3837 io->io_hdr.pool = NULL; 3838 } 3839 3840 return (io); 3841} 3842 3843void 3844ctl_free_io(union ctl_io *io) 3845{ 3846 if (io == NULL) 3847 return; 3848 3849 /* 3850 * If this ctl_io has a pool, return it to that pool. 3851 */ 3852 if (io->io_hdr.pool != NULL) { 3853 struct ctl_io_pool *pool; 3854 3855 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3856 mtx_lock(&pool->ctl_softc->pool_lock); 3857 io->io_hdr.io_type = 0xff; 3858 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3859 pool->total_freed++; 3860 pool->free_ctl_io++; 3861 ctl_pool_release(pool); 3862 mtx_unlock(&pool->ctl_softc->pool_lock); 3863 } else { 3864 /* 3865 * Otherwise, just free it. We probably malloced it and 3866 * the emergency pool wasn't available. 3867 */ 3868 free(io, M_CTLIO); 3869 } 3870 3871} 3872 3873void 3874ctl_zero_io(union ctl_io *io) 3875{ 3876 void *pool_ref; 3877 3878 if (io == NULL) 3879 return; 3880 3881 /* 3882 * May need to preserve linked list pointers at some point too. 3883 */ 3884 pool_ref = io->io_hdr.pool; 3885 3886 memset(io, 0, sizeof(*io)); 3887 3888 io->io_hdr.pool = pool_ref; 3889} 3890 3891/* 3892 * This routine is currently used for internal copies of ctl_ios that need 3893 * to persist for some reason after we've already returned status to the 3894 * FETD. (Thus the flag set.) 3895 * 3896 * XXX XXX 3897 * Note that this makes a blind copy of all fields in the ctl_io, except 3898 * for the pool reference. This includes any memory that has been 3899 * allocated! That memory will no longer be valid after done has been 3900 * called, so this would be VERY DANGEROUS for command that actually does 3901 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3902 * start and stop commands, which don't transfer any data, so this is not a 3903 * problem. If it is used for anything else, the caller would also need to 3904 * allocate data buffer space and this routine would need to be modified to 3905 * copy the data buffer(s) as well. 3906 */ 3907void 3908ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3909{ 3910 void *pool_ref; 3911 3912 if ((src == NULL) 3913 || (dest == NULL)) 3914 return; 3915 3916 /* 3917 * May need to preserve linked list pointers at some point too. 3918 */ 3919 pool_ref = dest->io_hdr.pool; 3920 3921 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3922 3923 dest->io_hdr.pool = pool_ref; 3924 /* 3925 * We need to know that this is an internal copy, and doesn't need 3926 * to get passed back to the FETD that allocated it. 3927 */ 3928 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3929} 3930 3931#ifdef NEEDTOPORT 3932static void 3933ctl_update_power_subpage(struct copan_power_subpage *page) 3934{ 3935 int num_luns, num_partitions, config_type; 3936 struct ctl_softc *softc; 3937 cs_BOOL_t aor_present, shelf_50pct_power; 3938 cs_raidset_personality_t rs_type; 3939 int max_active_luns; 3940 3941 softc = control_softc; 3942 3943 /* subtract out the processor LUN */ 3944 num_luns = softc->num_luns - 1; 3945 /* 3946 * Default to 7 LUNs active, which was the only number we allowed 3947 * in the past. 3948 */ 3949 max_active_luns = 7; 3950 3951 num_partitions = config_GetRsPartitionInfo(); 3952 config_type = config_GetConfigType(); 3953 shelf_50pct_power = config_GetShelfPowerMode(); 3954 aor_present = config_IsAorRsPresent(); 3955 3956 rs_type = ddb_GetRsRaidType(1); 3957 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3958 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3959 EPRINT(0, "Unsupported RS type %d!", rs_type); 3960 } 3961 3962 3963 page->total_luns = num_luns; 3964 3965 switch (config_type) { 3966 case 40: 3967 /* 3968 * In a 40 drive configuration, it doesn't matter what DC 3969 * cards we have, whether we have AOR enabled or not, 3970 * partitioning or not, or what type of RAIDset we have. 3971 * In that scenario, we can power up every LUN we present 3972 * to the user. 3973 */ 3974 max_active_luns = num_luns; 3975 3976 break; 3977 case 64: 3978 if (shelf_50pct_power == CS_FALSE) { 3979 /* 25% power */ 3980 if (aor_present == CS_TRUE) { 3981 if (rs_type == 3982 CS_RAIDSET_PERSONALITY_RAID5) { 3983 max_active_luns = 7; 3984 } else if (rs_type == 3985 CS_RAIDSET_PERSONALITY_RAID1){ 3986 max_active_luns = 14; 3987 } else { 3988 /* XXX KDM now what?? */ 3989 } 3990 } else { 3991 if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID5) { 3993 max_active_luns = 8; 3994 } else if (rs_type == 3995 CS_RAIDSET_PERSONALITY_RAID1){ 3996 max_active_luns = 16; 3997 } else { 3998 /* XXX KDM now what?? */ 3999 } 4000 } 4001 } else { 4002 /* 50% power */ 4003 /* 4004 * With 50% power in a 64 drive configuration, we 4005 * can power all LUNs we present. 4006 */ 4007 max_active_luns = num_luns; 4008 } 4009 break; 4010 case 112: 4011 if (shelf_50pct_power == CS_FALSE) { 4012 /* 25% power */ 4013 if (aor_present == CS_TRUE) { 4014 if (rs_type == 4015 CS_RAIDSET_PERSONALITY_RAID5) { 4016 max_active_luns = 7; 4017 } else if (rs_type == 4018 CS_RAIDSET_PERSONALITY_RAID1){ 4019 max_active_luns = 14; 4020 } else { 4021 /* XXX KDM now what?? */ 4022 } 4023 } else { 4024 if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID5) { 4026 max_active_luns = 8; 4027 } else if (rs_type == 4028 CS_RAIDSET_PERSONALITY_RAID1){ 4029 max_active_luns = 16; 4030 } else { 4031 /* XXX KDM now what?? */ 4032 } 4033 } 4034 } else { 4035 /* 50% power */ 4036 if (aor_present == CS_TRUE) { 4037 if (rs_type == 4038 CS_RAIDSET_PERSONALITY_RAID5) { 4039 max_active_luns = 14; 4040 } else if (rs_type == 4041 CS_RAIDSET_PERSONALITY_RAID1){ 4042 /* 4043 * We're assuming here that disk 4044 * caching is enabled, and so we're 4045 * able to power up half of each 4046 * LUN, and cache all writes. 4047 */ 4048 max_active_luns = num_luns; 4049 } else { 4050 /* XXX KDM now what?? */ 4051 } 4052 } else { 4053 if (rs_type == 4054 CS_RAIDSET_PERSONALITY_RAID5) { 4055 max_active_luns = 15; 4056 } else if (rs_type == 4057 CS_RAIDSET_PERSONALITY_RAID1){ 4058 max_active_luns = 30; 4059 } else { 4060 /* XXX KDM now what?? */ 4061 } 4062 } 4063 } 4064 break; 4065 default: 4066 /* 4067 * In this case, we have an unknown configuration, so we 4068 * just use the default from above. 4069 */ 4070 break; 4071 } 4072 4073 page->max_active_luns = max_active_luns; 4074#if 0 4075 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4076 page->total_luns, page->max_active_luns); 4077#endif 4078} 4079#endif /* NEEDTOPORT */ 4080 4081/* 4082 * This routine could be used in the future to load default and/or saved 4083 * mode page parameters for a particuar lun. 4084 */ 4085static int 4086ctl_init_page_index(struct ctl_lun *lun) 4087{ 4088 int i; 4089 struct ctl_page_index *page_index; 4090 struct ctl_softc *softc; 4091 4092 memcpy(&lun->mode_pages.index, page_index_template, 4093 sizeof(page_index_template)); 4094 4095 softc = lun->ctl_softc; 4096 4097 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4098 4099 page_index = &lun->mode_pages.index[i]; 4100 /* 4101 * If this is a disk-only mode page, there's no point in 4102 * setting it up. For some pages, we have to have some 4103 * basic information about the disk in order to calculate the 4104 * mode page data. 4105 */ 4106 if ((lun->be_lun->lun_type != T_DIRECT) 4107 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4108 continue; 4109 4110 switch (page_index->page_code & SMPH_PC_MASK) { 4111 case SMS_FORMAT_DEVICE_PAGE: { 4112 struct scsi_format_page *format_page; 4113 4114 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4115 panic("subpage is incorrect!"); 4116 4117 /* 4118 * Sectors per track are set above. Bytes per 4119 * sector need to be set here on a per-LUN basis. 4120 */ 4121 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4122 &format_page_default, 4123 sizeof(format_page_default)); 4124 memcpy(&lun->mode_pages.format_page[ 4125 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4126 sizeof(format_page_changeable)); 4127 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4128 &format_page_default, 4129 sizeof(format_page_default)); 4130 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4131 &format_page_default, 4132 sizeof(format_page_default)); 4133 4134 format_page = &lun->mode_pages.format_page[ 4135 CTL_PAGE_CURRENT]; 4136 scsi_ulto2b(lun->be_lun->blocksize, 4137 format_page->bytes_per_sector); 4138 4139 format_page = &lun->mode_pages.format_page[ 4140 CTL_PAGE_DEFAULT]; 4141 scsi_ulto2b(lun->be_lun->blocksize, 4142 format_page->bytes_per_sector); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_SAVED]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 page_index->page_data = 4150 (uint8_t *)lun->mode_pages.format_page; 4151 break; 4152 } 4153 case SMS_RIGID_DISK_PAGE: { 4154 struct scsi_rigid_disk_page *rigid_disk_page; 4155 uint32_t sectors_per_cylinder; 4156 uint64_t cylinders; 4157#ifndef __XSCALE__ 4158 int shift; 4159#endif /* !__XSCALE__ */ 4160 4161 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4162 panic("invalid subpage value %d", 4163 page_index->subpage); 4164 4165 /* 4166 * Rotation rate and sectors per track are set 4167 * above. We calculate the cylinders here based on 4168 * capacity. Due to the number of heads and 4169 * sectors per track we're using, smaller arrays 4170 * may turn out to have 0 cylinders. Linux and 4171 * FreeBSD don't pay attention to these mode pages 4172 * to figure out capacity, but Solaris does. It 4173 * seems to deal with 0 cylinders just fine, and 4174 * works out a fake geometry based on the capacity. 4175 */ 4176 memcpy(&lun->mode_pages.rigid_disk_page[ 4177 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4178 sizeof(rigid_disk_page_default)); 4179 memcpy(&lun->mode_pages.rigid_disk_page[ 4180 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4181 sizeof(rigid_disk_page_changeable)); 4182 memcpy(&lun->mode_pages.rigid_disk_page[ 4183 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4184 sizeof(rigid_disk_page_default)); 4185 memcpy(&lun->mode_pages.rigid_disk_page[ 4186 CTL_PAGE_SAVED], &rigid_disk_page_default, 4187 sizeof(rigid_disk_page_default)); 4188 4189 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4190 CTL_DEFAULT_HEADS; 4191 4192 /* 4193 * The divide method here will be more accurate, 4194 * probably, but results in floating point being 4195 * used in the kernel on i386 (__udivdi3()). On the 4196 * XScale, though, __udivdi3() is implemented in 4197 * software. 4198 * 4199 * The shift method for cylinder calculation is 4200 * accurate if sectors_per_cylinder is a power of 4201 * 2. Otherwise it might be slightly off -- you 4202 * might have a bit of a truncation problem. 4203 */ 4204#ifdef __XSCALE__ 4205 cylinders = (lun->be_lun->maxlba + 1) / 4206 sectors_per_cylinder; 4207#else 4208 for (shift = 31; shift > 0; shift--) { 4209 if (sectors_per_cylinder & (1 << shift)) 4210 break; 4211 } 4212 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4213#endif 4214 4215 /* 4216 * We've basically got 3 bytes, or 24 bits for the 4217 * cylinder size in the mode page. If we're over, 4218 * just round down to 2^24. 4219 */ 4220 if (cylinders > 0xffffff) 4221 cylinders = 0xffffff; 4222 4223 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4224 CTL_PAGE_CURRENT]; 4225 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4226 4227 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4228 CTL_PAGE_DEFAULT]; 4229 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_SAVED]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 page_index->page_data = 4236 (uint8_t *)lun->mode_pages.rigid_disk_page; 4237 break; 4238 } 4239 case SMS_CACHING_PAGE: { 4240 4241 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4242 panic("invalid subpage value %d", 4243 page_index->subpage); 4244 /* 4245 * Defaults should be okay here, no calculations 4246 * needed. 4247 */ 4248 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4249 &caching_page_default, 4250 sizeof(caching_page_default)); 4251 memcpy(&lun->mode_pages.caching_page[ 4252 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4253 sizeof(caching_page_changeable)); 4254 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4255 &caching_page_default, 4256 sizeof(caching_page_default)); 4257 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4258 &caching_page_default, 4259 sizeof(caching_page_default)); 4260 page_index->page_data = 4261 (uint8_t *)lun->mode_pages.caching_page; 4262 break; 4263 } 4264 case SMS_CONTROL_MODE_PAGE: { 4265 4266 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4267 panic("invalid subpage value %d", 4268 page_index->subpage); 4269 4270 /* 4271 * Defaults should be okay here, no calculations 4272 * needed. 4273 */ 4274 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4275 &control_page_default, 4276 sizeof(control_page_default)); 4277 memcpy(&lun->mode_pages.control_page[ 4278 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4279 sizeof(control_page_changeable)); 4280 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4281 &control_page_default, 4282 sizeof(control_page_default)); 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 page_index->page_data = 4287 (uint8_t *)lun->mode_pages.control_page; 4288 break; 4289 4290 } 4291 case SMS_VENDOR_SPECIFIC_PAGE:{ 4292 switch (page_index->subpage) { 4293 case PWR_SUBPAGE_CODE: { 4294 struct copan_power_subpage *current_page, 4295 *saved_page; 4296 4297 memcpy(&lun->mode_pages.power_subpage[ 4298 CTL_PAGE_CURRENT], 4299 &power_page_default, 4300 sizeof(power_page_default)); 4301 memcpy(&lun->mode_pages.power_subpage[ 4302 CTL_PAGE_CHANGEABLE], 4303 &power_page_changeable, 4304 sizeof(power_page_changeable)); 4305 memcpy(&lun->mode_pages.power_subpage[ 4306 CTL_PAGE_DEFAULT], 4307 &power_page_default, 4308 sizeof(power_page_default)); 4309 memcpy(&lun->mode_pages.power_subpage[ 4310 CTL_PAGE_SAVED], 4311 &power_page_default, 4312 sizeof(power_page_default)); 4313 page_index->page_data = 4314 (uint8_t *)lun->mode_pages.power_subpage; 4315 4316 current_page = (struct copan_power_subpage *) 4317 (page_index->page_data + 4318 (page_index->page_len * 4319 CTL_PAGE_CURRENT)); 4320 saved_page = (struct copan_power_subpage *) 4321 (page_index->page_data + 4322 (page_index->page_len * 4323 CTL_PAGE_SAVED)); 4324 break; 4325 } 4326 case APS_SUBPAGE_CODE: { 4327 struct copan_aps_subpage *current_page, 4328 *saved_page; 4329 4330 // This gets set multiple times but 4331 // it should always be the same. It's 4332 // only done during init so who cares. 4333 index_to_aps_page = i; 4334 4335 memcpy(&lun->mode_pages.aps_subpage[ 4336 CTL_PAGE_CURRENT], 4337 &aps_page_default, 4338 sizeof(aps_page_default)); 4339 memcpy(&lun->mode_pages.aps_subpage[ 4340 CTL_PAGE_CHANGEABLE], 4341 &aps_page_changeable, 4342 sizeof(aps_page_changeable)); 4343 memcpy(&lun->mode_pages.aps_subpage[ 4344 CTL_PAGE_DEFAULT], 4345 &aps_page_default, 4346 sizeof(aps_page_default)); 4347 memcpy(&lun->mode_pages.aps_subpage[ 4348 CTL_PAGE_SAVED], 4349 &aps_page_default, 4350 sizeof(aps_page_default)); 4351 page_index->page_data = 4352 (uint8_t *)lun->mode_pages.aps_subpage; 4353 4354 current_page = (struct copan_aps_subpage *) 4355 (page_index->page_data + 4356 (page_index->page_len * 4357 CTL_PAGE_CURRENT)); 4358 saved_page = (struct copan_aps_subpage *) 4359 (page_index->page_data + 4360 (page_index->page_len * 4361 CTL_PAGE_SAVED)); 4362 break; 4363 } 4364 case DBGCNF_SUBPAGE_CODE: { 4365 struct copan_debugconf_subpage *current_page, 4366 *saved_page; 4367 4368 memcpy(&lun->mode_pages.debugconf_subpage[ 4369 CTL_PAGE_CURRENT], 4370 &debugconf_page_default, 4371 sizeof(debugconf_page_default)); 4372 memcpy(&lun->mode_pages.debugconf_subpage[ 4373 CTL_PAGE_CHANGEABLE], 4374 &debugconf_page_changeable, 4375 sizeof(debugconf_page_changeable)); 4376 memcpy(&lun->mode_pages.debugconf_subpage[ 4377 CTL_PAGE_DEFAULT], 4378 &debugconf_page_default, 4379 sizeof(debugconf_page_default)); 4380 memcpy(&lun->mode_pages.debugconf_subpage[ 4381 CTL_PAGE_SAVED], 4382 &debugconf_page_default, 4383 sizeof(debugconf_page_default)); 4384 page_index->page_data = 4385 (uint8_t *)lun->mode_pages.debugconf_subpage; 4386 4387 current_page = (struct copan_debugconf_subpage *) 4388 (page_index->page_data + 4389 (page_index->page_len * 4390 CTL_PAGE_CURRENT)); 4391 saved_page = (struct copan_debugconf_subpage *) 4392 (page_index->page_data + 4393 (page_index->page_len * 4394 CTL_PAGE_SAVED)); 4395 break; 4396 } 4397 default: 4398 panic("invalid subpage value %d", 4399 page_index->subpage); 4400 break; 4401 } 4402 break; 4403 } 4404 default: 4405 panic("invalid page value %d", 4406 page_index->page_code & SMPH_PC_MASK); 4407 break; 4408 } 4409 } 4410 4411 return (CTL_RETVAL_COMPLETE); 4412} 4413 4414/* 4415 * LUN allocation. 4416 * 4417 * Requirements: 4418 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4419 * wants us to allocate the LUN and he can block. 4420 * - ctl_softc is always set 4421 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4422 * 4423 * Returns 0 for success, non-zero (errno) for failure. 4424 */ 4425static int 4426ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4427 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4428{ 4429 struct ctl_lun *nlun, *lun; 4430 struct ctl_port *port; 4431 struct scsi_vpd_id_descriptor *desc; 4432 struct scsi_vpd_id_t10 *t10id; 4433 const char *scsiname, *vendor; 4434 int lun_number, i, lun_malloced; 4435 int devidlen, idlen1, idlen2 = 0, len; 4436 4437 if (be_lun == NULL) 4438 return (EINVAL); 4439 4440 /* 4441 * We currently only support Direct Access or Processor LUN types. 4442 */ 4443 switch (be_lun->lun_type) { 4444 case T_DIRECT: 4445 break; 4446 case T_PROCESSOR: 4447 break; 4448 case T_SEQUENTIAL: 4449 case T_CHANGER: 4450 default: 4451 be_lun->lun_config_status(be_lun->be_lun, 4452 CTL_LUN_CONFIG_FAILURE); 4453 break; 4454 } 4455 if (ctl_lun == NULL) { 4456 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4457 lun_malloced = 1; 4458 } else { 4459 lun_malloced = 0; 4460 lun = ctl_lun; 4461 } 4462 4463 memset(lun, 0, sizeof(*lun)); 4464 if (lun_malloced) 4465 lun->flags = CTL_LUN_MALLOCED; 4466 4467 /* Generate LUN ID. */ 4468 devidlen = max(CTL_DEVID_MIN_LEN, 4469 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4470 idlen1 = sizeof(*t10id) + devidlen; 4471 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4472 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4473 if (scsiname != NULL) { 4474 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4475 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4476 } 4477 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4478 M_CTL, M_WAITOK | M_ZERO); 4479 lun->lun_devid->len = len; 4480 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4481 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4482 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4483 desc->length = idlen1; 4484 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4485 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4486 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4487 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4488 } else { 4489 strncpy(t10id->vendor, vendor, 4490 min(sizeof(t10id->vendor), strlen(vendor))); 4491 } 4492 strncpy((char *)t10id->vendor_spec_id, 4493 (char *)be_lun->device_id, devidlen); 4494 if (scsiname != NULL) { 4495 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4496 desc->length); 4497 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4498 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4499 SVPD_ID_TYPE_SCSI_NAME; 4500 desc->length = idlen2; 4501 strlcpy(desc->identifier, scsiname, idlen2); 4502 } 4503 4504 mtx_lock(&ctl_softc->ctl_lock); 4505 /* 4506 * See if the caller requested a particular LUN number. If so, see 4507 * if it is available. Otherwise, allocate the first available LUN. 4508 */ 4509 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4510 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4511 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4512 mtx_unlock(&ctl_softc->ctl_lock); 4513 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4514 printf("ctl: requested LUN ID %d is higher " 4515 "than CTL_MAX_LUNS - 1 (%d)\n", 4516 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4517 } else { 4518 /* 4519 * XXX KDM return an error, or just assign 4520 * another LUN ID in this case?? 4521 */ 4522 printf("ctl: requested LUN ID %d is already " 4523 "in use\n", be_lun->req_lun_id); 4524 } 4525 if (lun->flags & CTL_LUN_MALLOCED) 4526 free(lun, M_CTL); 4527 be_lun->lun_config_status(be_lun->be_lun, 4528 CTL_LUN_CONFIG_FAILURE); 4529 return (ENOSPC); 4530 } 4531 lun_number = be_lun->req_lun_id; 4532 } else { 4533 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4534 if (lun_number == -1) { 4535 mtx_unlock(&ctl_softc->ctl_lock); 4536 printf("ctl: can't allocate LUN on target %ju, out of " 4537 "LUNs\n", (uintmax_t)target_id.id); 4538 if (lun->flags & CTL_LUN_MALLOCED) 4539 free(lun, M_CTL); 4540 be_lun->lun_config_status(be_lun->be_lun, 4541 CTL_LUN_CONFIG_FAILURE); 4542 return (ENOSPC); 4543 } 4544 } 4545 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4546 4547 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4548 lun->target = target_id; 4549 lun->lun = lun_number; 4550 lun->be_lun = be_lun; 4551 /* 4552 * The processor LUN is always enabled. Disk LUNs come on line 4553 * disabled, and must be enabled by the backend. 4554 */ 4555 lun->flags |= CTL_LUN_DISABLED; 4556 lun->backend = be_lun->be; 4557 be_lun->ctl_lun = lun; 4558 be_lun->lun_id = lun_number; 4559 atomic_add_int(&be_lun->be->num_luns, 1); 4560 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4561 lun->flags |= CTL_LUN_STOPPED; 4562 4563 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4564 lun->flags |= CTL_LUN_INOPERABLE; 4565 4566 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4567 lun->flags |= CTL_LUN_PRIMARY_SC; 4568 4569 lun->ctl_softc = ctl_softc; 4570 TAILQ_INIT(&lun->ooa_queue); 4571 TAILQ_INIT(&lun->blocked_queue); 4572 STAILQ_INIT(&lun->error_list); 4573 4574 /* 4575 * Initialize the mode page index. 4576 */ 4577 ctl_init_page_index(lun); 4578 4579 /* 4580 * Set the poweron UA for all initiators on this LUN only. 4581 */ 4582 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4583 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4584 4585 /* 4586 * Now, before we insert this lun on the lun list, set the lun 4587 * inventory changed UA for all other luns. 4588 */ 4589 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4590 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4591 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4592 } 4593 } 4594 4595 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4596 4597 ctl_softc->ctl_luns[lun_number] = lun; 4598 4599 ctl_softc->num_luns++; 4600 4601 /* Setup statistics gathering */ 4602 lun->stats.device_type = be_lun->lun_type; 4603 lun->stats.lun_number = lun_number; 4604 if (lun->stats.device_type == T_DIRECT) 4605 lun->stats.blocksize = be_lun->blocksize; 4606 else 4607 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4608 for (i = 0;i < CTL_MAX_PORTS;i++) 4609 lun->stats.ports[i].targ_port = i; 4610 4611 mtx_unlock(&ctl_softc->ctl_lock); 4612 4613 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4614 4615 /* 4616 * Run through each registered FETD and bring it online if it isn't 4617 * already. Enable the target ID if it hasn't been enabled, and 4618 * enable this particular LUN. 4619 */ 4620 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4621 int retval; 4622 4623 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4624 if (retval != 0) { 4625 printf("ctl_alloc_lun: FETD %s port %d returned error " 4626 "%d for lun_enable on target %ju lun %d\n", 4627 port->port_name, port->targ_port, retval, 4628 (uintmax_t)target_id.id, lun_number); 4629 } else 4630 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4631 } 4632 return (0); 4633} 4634 4635/* 4636 * Delete a LUN. 4637 * Assumptions: 4638 * - LUN has already been marked invalid and any pending I/O has been taken 4639 * care of. 4640 */ 4641static int 4642ctl_free_lun(struct ctl_lun *lun) 4643{ 4644 struct ctl_softc *softc; 4645#if 0 4646 struct ctl_port *port; 4647#endif 4648 struct ctl_lun *nlun; 4649 int i; 4650 4651 softc = lun->ctl_softc; 4652 4653 mtx_assert(&softc->ctl_lock, MA_OWNED); 4654 4655 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4656 4657 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4658 4659 softc->ctl_luns[lun->lun] = NULL; 4660 4661 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4662 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4663 4664 softc->num_luns--; 4665 4666 /* 4667 * XXX KDM this scheme only works for a single target/multiple LUN 4668 * setup. It needs to be revamped for a multiple target scheme. 4669 * 4670 * XXX KDM this results in port->lun_disable() getting called twice, 4671 * once when ctl_disable_lun() is called, and a second time here. 4672 * We really need to re-think the LUN disable semantics. There 4673 * should probably be several steps/levels to LUN removal: 4674 * - disable 4675 * - invalidate 4676 * - free 4677 * 4678 * Right now we only have a disable method when communicating to 4679 * the front end ports, at least for individual LUNs. 4680 */ 4681#if 0 4682 STAILQ_FOREACH(port, &softc->port_list, links) { 4683 int retval; 4684 4685 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4686 lun->lun); 4687 if (retval != 0) { 4688 printf("ctl_free_lun: FETD %s port %d returned error " 4689 "%d for lun_disable on target %ju lun %jd\n", 4690 port->port_name, port->targ_port, retval, 4691 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4692 } 4693 4694 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4695 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4696 4697 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4698 if (retval != 0) { 4699 printf("ctl_free_lun: FETD %s port %d " 4700 "returned error %d for targ_disable on " 4701 "target %ju\n", port->port_name, 4702 port->targ_port, retval, 4703 (uintmax_t)lun->target.id); 4704 } else 4705 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4706 4707 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4708 continue; 4709 4710#if 0 4711 port->port_offline(port->onoff_arg); 4712 port->status &= ~CTL_PORT_STATUS_ONLINE; 4713#endif 4714 } 4715 } 4716#endif 4717 4718 /* 4719 * Tell the backend to free resources, if this LUN has a backend. 4720 */ 4721 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4722 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4723 4724 mtx_destroy(&lun->lun_lock); 4725 free(lun->lun_devid, M_CTL); 4726 if (lun->flags & CTL_LUN_MALLOCED) 4727 free(lun, M_CTL); 4728 4729 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4730 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4731 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4732 } 4733 } 4734 4735 return (0); 4736} 4737 4738static void 4739ctl_create_lun(struct ctl_be_lun *be_lun) 4740{ 4741 struct ctl_softc *ctl_softc; 4742 4743 ctl_softc = control_softc; 4744 4745 /* 4746 * ctl_alloc_lun() should handle all potential failure cases. 4747 */ 4748 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4749} 4750 4751int 4752ctl_add_lun(struct ctl_be_lun *be_lun) 4753{ 4754 struct ctl_softc *ctl_softc = control_softc; 4755 4756 mtx_lock(&ctl_softc->ctl_lock); 4757 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4758 mtx_unlock(&ctl_softc->ctl_lock); 4759 wakeup(&ctl_softc->pending_lun_queue); 4760 4761 return (0); 4762} 4763 4764int 4765ctl_enable_lun(struct ctl_be_lun *be_lun) 4766{ 4767 struct ctl_softc *ctl_softc; 4768 struct ctl_port *port, *nport; 4769 struct ctl_lun *lun; 4770 int retval; 4771 4772 ctl_softc = control_softc; 4773 4774 lun = (struct ctl_lun *)be_lun->ctl_lun; 4775 4776 mtx_lock(&ctl_softc->ctl_lock); 4777 mtx_lock(&lun->lun_lock); 4778 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4779 /* 4780 * eh? Why did we get called if the LUN is already 4781 * enabled? 4782 */ 4783 mtx_unlock(&lun->lun_lock); 4784 mtx_unlock(&ctl_softc->ctl_lock); 4785 return (0); 4786 } 4787 lun->flags &= ~CTL_LUN_DISABLED; 4788 mtx_unlock(&lun->lun_lock); 4789 4790 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4791 nport = STAILQ_NEXT(port, links); 4792 4793 /* 4794 * Drop the lock while we call the FETD's enable routine. 4795 * This can lead to a callback into CTL (at least in the 4796 * case of the internal initiator frontend. 4797 */ 4798 mtx_unlock(&ctl_softc->ctl_lock); 4799 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4800 mtx_lock(&ctl_softc->ctl_lock); 4801 if (retval != 0) { 4802 printf("%s: FETD %s port %d returned error " 4803 "%d for lun_enable on target %ju lun %jd\n", 4804 __func__, port->port_name, port->targ_port, retval, 4805 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4806 } 4807#if 0 4808 else { 4809 /* NOTE: TODO: why does lun enable affect port status? */ 4810 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4811 } 4812#endif 4813 } 4814 4815 mtx_unlock(&ctl_softc->ctl_lock); 4816 4817 return (0); 4818} 4819 4820int 4821ctl_disable_lun(struct ctl_be_lun *be_lun) 4822{ 4823 struct ctl_softc *ctl_softc; 4824 struct ctl_port *port; 4825 struct ctl_lun *lun; 4826 int retval; 4827 4828 ctl_softc = control_softc; 4829 4830 lun = (struct ctl_lun *)be_lun->ctl_lun; 4831 4832 mtx_lock(&ctl_softc->ctl_lock); 4833 mtx_lock(&lun->lun_lock); 4834 if (lun->flags & CTL_LUN_DISABLED) { 4835 mtx_unlock(&lun->lun_lock); 4836 mtx_unlock(&ctl_softc->ctl_lock); 4837 return (0); 4838 } 4839 lun->flags |= CTL_LUN_DISABLED; 4840 mtx_unlock(&lun->lun_lock); 4841 4842 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 /* 4845 * Drop the lock before we call the frontend's disable 4846 * routine, to avoid lock order reversals. 4847 * 4848 * XXX KDM what happens if the frontend list changes while 4849 * we're traversing it? It's unlikely, but should be handled. 4850 */ 4851 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4852 lun->lun); 4853 mtx_lock(&ctl_softc->ctl_lock); 4854 if (retval != 0) { 4855 printf("ctl_alloc_lun: FETD %s port %d returned error " 4856 "%d for lun_disable on target %ju lun %jd\n", 4857 port->port_name, port->targ_port, retval, 4858 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4859 } 4860 } 4861 4862 mtx_unlock(&ctl_softc->ctl_lock); 4863 4864 return (0); 4865} 4866 4867int 4868ctl_start_lun(struct ctl_be_lun *be_lun) 4869{ 4870 struct ctl_softc *ctl_softc; 4871 struct ctl_lun *lun; 4872 4873 ctl_softc = control_softc; 4874 4875 lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&lun->lun_lock); 4878 lun->flags &= ~CTL_LUN_STOPPED; 4879 mtx_unlock(&lun->lun_lock); 4880 4881 return (0); 4882} 4883 4884int 4885ctl_stop_lun(struct ctl_be_lun *be_lun) 4886{ 4887 struct ctl_softc *ctl_softc; 4888 struct ctl_lun *lun; 4889 4890 ctl_softc = control_softc; 4891 4892 lun = (struct ctl_lun *)be_lun->ctl_lun; 4893 4894 mtx_lock(&lun->lun_lock); 4895 lun->flags |= CTL_LUN_STOPPED; 4896 mtx_unlock(&lun->lun_lock); 4897 4898 return (0); 4899} 4900 4901int 4902ctl_lun_offline(struct ctl_be_lun *be_lun) 4903{ 4904 struct ctl_softc *ctl_softc; 4905 struct ctl_lun *lun; 4906 4907 ctl_softc = control_softc; 4908 4909 lun = (struct ctl_lun *)be_lun->ctl_lun; 4910 4911 mtx_lock(&lun->lun_lock); 4912 lun->flags |= CTL_LUN_OFFLINE; 4913 mtx_unlock(&lun->lun_lock); 4914 4915 return (0); 4916} 4917 4918int 4919ctl_lun_online(struct ctl_be_lun *be_lun) 4920{ 4921 struct ctl_softc *ctl_softc; 4922 struct ctl_lun *lun; 4923 4924 ctl_softc = control_softc; 4925 4926 lun = (struct ctl_lun *)be_lun->ctl_lun; 4927 4928 mtx_lock(&lun->lun_lock); 4929 lun->flags &= ~CTL_LUN_OFFLINE; 4930 mtx_unlock(&lun->lun_lock); 4931 4932 return (0); 4933} 4934 4935int 4936ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4937{ 4938 struct ctl_softc *ctl_softc; 4939 struct ctl_lun *lun; 4940 4941 ctl_softc = control_softc; 4942 4943 lun = (struct ctl_lun *)be_lun->ctl_lun; 4944 4945 mtx_lock(&lun->lun_lock); 4946 4947 /* 4948 * The LUN needs to be disabled before it can be marked invalid. 4949 */ 4950 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4951 mtx_unlock(&lun->lun_lock); 4952 return (-1); 4953 } 4954 /* 4955 * Mark the LUN invalid. 4956 */ 4957 lun->flags |= CTL_LUN_INVALID; 4958 4959 /* 4960 * If there is nothing in the OOA queue, go ahead and free the LUN. 4961 * If we have something in the OOA queue, we'll free it when the 4962 * last I/O completes. 4963 */ 4964 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4965 mtx_unlock(&lun->lun_lock); 4966 mtx_lock(&ctl_softc->ctl_lock); 4967 ctl_free_lun(lun); 4968 mtx_unlock(&ctl_softc->ctl_lock); 4969 } else 4970 mtx_unlock(&lun->lun_lock); 4971 4972 return (0); 4973} 4974 4975int 4976ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4977{ 4978 struct ctl_softc *ctl_softc; 4979 struct ctl_lun *lun; 4980 4981 ctl_softc = control_softc; 4982 lun = (struct ctl_lun *)be_lun->ctl_lun; 4983 4984 mtx_lock(&lun->lun_lock); 4985 lun->flags |= CTL_LUN_INOPERABLE; 4986 mtx_unlock(&lun->lun_lock); 4987 4988 return (0); 4989} 4990 4991int 4992ctl_lun_operable(struct ctl_be_lun *be_lun) 4993{ 4994 struct ctl_softc *ctl_softc; 4995 struct ctl_lun *lun; 4996 4997 ctl_softc = control_softc; 4998 lun = (struct ctl_lun *)be_lun->ctl_lun; 4999 5000 mtx_lock(&lun->lun_lock); 5001 lun->flags &= ~CTL_LUN_INOPERABLE; 5002 mtx_unlock(&lun->lun_lock); 5003 5004 return (0); 5005} 5006 5007int 5008ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5009 int lock) 5010{ 5011 struct ctl_softc *softc; 5012 struct ctl_lun *lun; 5013 struct copan_aps_subpage *current_sp; 5014 struct ctl_page_index *page_index; 5015 int i; 5016 5017 softc = control_softc; 5018 5019 mtx_lock(&softc->ctl_lock); 5020 5021 lun = (struct ctl_lun *)be_lun->ctl_lun; 5022 mtx_lock(&lun->lun_lock); 5023 5024 page_index = NULL; 5025 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5026 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5027 APS_PAGE_CODE) 5028 continue; 5029 5030 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5031 continue; 5032 page_index = &lun->mode_pages.index[i]; 5033 } 5034 5035 if (page_index == NULL) { 5036 mtx_unlock(&lun->lun_lock); 5037 mtx_unlock(&softc->ctl_lock); 5038 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5039 (uintmax_t)lun->lun); 5040 return (1); 5041 } 5042#if 0 5043 if ((softc->aps_locked_lun != 0) 5044 && (softc->aps_locked_lun != lun->lun)) { 5045 printf("%s: attempt to lock LUN %llu when %llu is already " 5046 "locked\n"); 5047 mtx_unlock(&lun->lun_lock); 5048 mtx_unlock(&softc->ctl_lock); 5049 return (1); 5050 } 5051#endif 5052 5053 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5054 (page_index->page_len * CTL_PAGE_CURRENT)); 5055 5056 if (lock != 0) { 5057 current_sp->lock_active = APS_LOCK_ACTIVE; 5058 softc->aps_locked_lun = lun->lun; 5059 } else { 5060 current_sp->lock_active = 0; 5061 softc->aps_locked_lun = 0; 5062 } 5063 5064 5065 /* 5066 * If we're in HA mode, try to send the lock message to the other 5067 * side. 5068 */ 5069 if (ctl_is_single == 0) { 5070 int isc_retval; 5071 union ctl_ha_msg lock_msg; 5072 5073 lock_msg.hdr.nexus = *nexus; 5074 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5075 if (lock != 0) 5076 lock_msg.aps.lock_flag = 1; 5077 else 5078 lock_msg.aps.lock_flag = 0; 5079 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5080 sizeof(lock_msg), 0); 5081 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5082 printf("%s: APS (lock=%d) error returned from " 5083 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5084 mtx_unlock(&lun->lun_lock); 5085 mtx_unlock(&softc->ctl_lock); 5086 return (1); 5087 } 5088 } 5089 5090 mtx_unlock(&lun->lun_lock); 5091 mtx_unlock(&softc->ctl_lock); 5092 5093 return (0); 5094} 5095 5096void 5097ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5098{ 5099 struct ctl_lun *lun; 5100 struct ctl_softc *softc; 5101 int i; 5102 5103 softc = control_softc; 5104 5105 lun = (struct ctl_lun *)be_lun->ctl_lun; 5106 5107 mtx_lock(&lun->lun_lock); 5108 5109 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5110 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 5111 5112 mtx_unlock(&lun->lun_lock); 5113} 5114 5115/* 5116 * Backend "memory move is complete" callback for requests that never 5117 * make it down to say RAIDCore's configuration code. 5118 */ 5119int 5120ctl_config_move_done(union ctl_io *io) 5121{ 5122 int retval; 5123 5124 retval = CTL_RETVAL_COMPLETE; 5125 5126 5127 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5128 /* 5129 * XXX KDM this shouldn't happen, but what if it does? 5130 */ 5131 if (io->io_hdr.io_type != CTL_IO_SCSI) 5132 panic("I/O type isn't CTL_IO_SCSI!"); 5133 5134 if ((io->io_hdr.port_status == 0) 5135 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5136 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5137 io->io_hdr.status = CTL_SUCCESS; 5138 else if ((io->io_hdr.port_status != 0) 5139 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5140 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5141 /* 5142 * For hardware error sense keys, the sense key 5143 * specific value is defined to be a retry count, 5144 * but we use it to pass back an internal FETD 5145 * error code. XXX KDM Hopefully the FETD is only 5146 * using 16 bits for an error code, since that's 5147 * all the space we have in the sks field. 5148 */ 5149 ctl_set_internal_failure(&io->scsiio, 5150 /*sks_valid*/ 1, 5151 /*retry_count*/ 5152 io->io_hdr.port_status); 5153 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5154 free(io->scsiio.kern_data_ptr, M_CTL); 5155 ctl_done(io); 5156 goto bailout; 5157 } 5158 5159 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5160 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5161 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5162 /* 5163 * XXX KDM just assuming a single pointer here, and not a 5164 * S/G list. If we start using S/G lists for config data, 5165 * we'll need to know how to clean them up here as well. 5166 */ 5167 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5168 free(io->scsiio.kern_data_ptr, M_CTL); 5169 /* Hopefully the user has already set the status... */ 5170 ctl_done(io); 5171 } else { 5172 /* 5173 * XXX KDM now we need to continue data movement. Some 5174 * options: 5175 * - call ctl_scsiio() again? We don't do this for data 5176 * writes, because for those at least we know ahead of 5177 * time where the write will go and how long it is. For 5178 * config writes, though, that information is largely 5179 * contained within the write itself, thus we need to 5180 * parse out the data again. 5181 * 5182 * - Call some other function once the data is in? 5183 */ 5184 5185 /* 5186 * XXX KDM call ctl_scsiio() again for now, and check flag 5187 * bits to see whether we're allocated or not. 5188 */ 5189 retval = ctl_scsiio(&io->scsiio); 5190 } 5191bailout: 5192 return (retval); 5193} 5194 5195/* 5196 * This gets called by a backend driver when it is done with a 5197 * data_submit method. 5198 */ 5199void 5200ctl_data_submit_done(union ctl_io *io) 5201{ 5202 /* 5203 * If the IO_CONT flag is set, we need to call the supplied 5204 * function to continue processing the I/O, instead of completing 5205 * the I/O just yet. 5206 * 5207 * If there is an error, though, we don't want to keep processing. 5208 * Instead, just send status back to the initiator. 5209 */ 5210 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5211 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5212 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5213 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5214 io->scsiio.io_cont(io); 5215 return; 5216 } 5217 ctl_done(io); 5218} 5219 5220/* 5221 * This gets called by a backend driver when it is done with a 5222 * configuration write. 5223 */ 5224void 5225ctl_config_write_done(union ctl_io *io) 5226{ 5227 /* 5228 * If the IO_CONT flag is set, we need to call the supplied 5229 * function to continue processing the I/O, instead of completing 5230 * the I/O just yet. 5231 * 5232 * If there is an error, though, we don't want to keep processing. 5233 * Instead, just send status back to the initiator. 5234 */ 5235 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5236 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5237 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5238 io->scsiio.io_cont(io); 5239 return; 5240 } 5241 /* 5242 * Since a configuration write can be done for commands that actually 5243 * have data allocated, like write buffer, and commands that have 5244 * no data, like start/stop unit, we need to check here. 5245 */ 5246 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5247 free(io->scsiio.kern_data_ptr, M_CTL); 5248 ctl_done(io); 5249} 5250 5251/* 5252 * SCSI release command. 5253 */ 5254int 5255ctl_scsi_release(struct ctl_scsiio *ctsio) 5256{ 5257 int length, longid, thirdparty_id, resv_id; 5258 struct ctl_softc *ctl_softc; 5259 struct ctl_lun *lun; 5260 5261 length = 0; 5262 resv_id = 0; 5263 5264 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5265 5266 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5267 ctl_softc = control_softc; 5268 5269 switch (ctsio->cdb[0]) { 5270 case RELEASE_10: { 5271 struct scsi_release_10 *cdb; 5272 5273 cdb = (struct scsi_release_10 *)ctsio->cdb; 5274 5275 if (cdb->byte2 & SR10_LONGID) 5276 longid = 1; 5277 else 5278 thirdparty_id = cdb->thirdparty_id; 5279 5280 resv_id = cdb->resv_id; 5281 length = scsi_2btoul(cdb->length); 5282 break; 5283 } 5284 } 5285 5286 5287 /* 5288 * XXX KDM right now, we only support LUN reservation. We don't 5289 * support 3rd party reservations, or extent reservations, which 5290 * might actually need the parameter list. If we've gotten this 5291 * far, we've got a LUN reservation. Anything else got kicked out 5292 * above. So, according to SPC, ignore the length. 5293 */ 5294 length = 0; 5295 5296 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5297 && (length > 0)) { 5298 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5299 ctsio->kern_data_len = length; 5300 ctsio->kern_total_len = length; 5301 ctsio->kern_data_resid = 0; 5302 ctsio->kern_rel_offset = 0; 5303 ctsio->kern_sg_entries = 0; 5304 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5305 ctsio->be_move_done = ctl_config_move_done; 5306 ctl_datamove((union ctl_io *)ctsio); 5307 5308 return (CTL_RETVAL_COMPLETE); 5309 } 5310 5311 if (length > 0) 5312 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5313 5314 mtx_lock(&lun->lun_lock); 5315 5316 /* 5317 * According to SPC, it is not an error for an intiator to attempt 5318 * to release a reservation on a LUN that isn't reserved, or that 5319 * is reserved by another initiator. The reservation can only be 5320 * released, though, by the initiator who made it or by one of 5321 * several reset type events. 5322 */ 5323 if (lun->flags & CTL_LUN_RESERVED) { 5324 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5325 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5326 && (ctsio->io_hdr.nexus.targ_target.id == 5327 lun->rsv_nexus.targ_target.id)) { 5328 lun->flags &= ~CTL_LUN_RESERVED; 5329 } 5330 } 5331 5332 mtx_unlock(&lun->lun_lock); 5333 5334 ctsio->scsi_status = SCSI_STATUS_OK; 5335 ctsio->io_hdr.status = CTL_SUCCESS; 5336 5337 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5338 free(ctsio->kern_data_ptr, M_CTL); 5339 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5340 } 5341 5342 ctl_done((union ctl_io *)ctsio); 5343 return (CTL_RETVAL_COMPLETE); 5344} 5345 5346int 5347ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5348{ 5349 int extent, thirdparty, longid; 5350 int resv_id, length; 5351 uint64_t thirdparty_id; 5352 struct ctl_softc *ctl_softc; 5353 struct ctl_lun *lun; 5354 5355 extent = 0; 5356 thirdparty = 0; 5357 longid = 0; 5358 resv_id = 0; 5359 length = 0; 5360 thirdparty_id = 0; 5361 5362 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5363 5364 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5365 ctl_softc = control_softc; 5366 5367 switch (ctsio->cdb[0]) { 5368 case RESERVE_10: { 5369 struct scsi_reserve_10 *cdb; 5370 5371 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5372 5373 if (cdb->byte2 & SR10_LONGID) 5374 longid = 1; 5375 else 5376 thirdparty_id = cdb->thirdparty_id; 5377 5378 resv_id = cdb->resv_id; 5379 length = scsi_2btoul(cdb->length); 5380 break; 5381 } 5382 } 5383 5384 /* 5385 * XXX KDM right now, we only support LUN reservation. We don't 5386 * support 3rd party reservations, or extent reservations, which 5387 * might actually need the parameter list. If we've gotten this 5388 * far, we've got a LUN reservation. Anything else got kicked out 5389 * above. So, according to SPC, ignore the length. 5390 */ 5391 length = 0; 5392 5393 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5394 && (length > 0)) { 5395 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5396 ctsio->kern_data_len = length; 5397 ctsio->kern_total_len = length; 5398 ctsio->kern_data_resid = 0; 5399 ctsio->kern_rel_offset = 0; 5400 ctsio->kern_sg_entries = 0; 5401 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5402 ctsio->be_move_done = ctl_config_move_done; 5403 ctl_datamove((union ctl_io *)ctsio); 5404 5405 return (CTL_RETVAL_COMPLETE); 5406 } 5407 5408 if (length > 0) 5409 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5410 5411 mtx_lock(&lun->lun_lock); 5412 if (lun->flags & CTL_LUN_RESERVED) { 5413 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5414 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5415 || (ctsio->io_hdr.nexus.targ_target.id != 5416 lun->rsv_nexus.targ_target.id)) { 5417 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5418 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5419 goto bailout; 5420 } 5421 } 5422 5423 lun->flags |= CTL_LUN_RESERVED; 5424 lun->rsv_nexus = ctsio->io_hdr.nexus; 5425 5426 ctsio->scsi_status = SCSI_STATUS_OK; 5427 ctsio->io_hdr.status = CTL_SUCCESS; 5428 5429bailout: 5430 mtx_unlock(&lun->lun_lock); 5431 5432 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5433 free(ctsio->kern_data_ptr, M_CTL); 5434 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5435 } 5436 5437 ctl_done((union ctl_io *)ctsio); 5438 return (CTL_RETVAL_COMPLETE); 5439} 5440 5441int 5442ctl_start_stop(struct ctl_scsiio *ctsio) 5443{ 5444 struct scsi_start_stop_unit *cdb; 5445 struct ctl_lun *lun; 5446 struct ctl_softc *ctl_softc; 5447 int retval; 5448 5449 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5450 5451 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5452 ctl_softc = control_softc; 5453 retval = 0; 5454 5455 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5456 5457 /* 5458 * XXX KDM 5459 * We don't support the immediate bit on a stop unit. In order to 5460 * do that, we would need to code up a way to know that a stop is 5461 * pending, and hold off any new commands until it completes, one 5462 * way or another. Then we could accept or reject those commands 5463 * depending on its status. We would almost need to do the reverse 5464 * of what we do below for an immediate start -- return the copy of 5465 * the ctl_io to the FETD with status to send to the host (and to 5466 * free the copy!) and then free the original I/O once the stop 5467 * actually completes. That way, the OOA queue mechanism can work 5468 * to block commands that shouldn't proceed. Another alternative 5469 * would be to put the copy in the queue in place of the original, 5470 * and return the original back to the caller. That could be 5471 * slightly safer.. 5472 */ 5473 if ((cdb->byte2 & SSS_IMMED) 5474 && ((cdb->how & SSS_START) == 0)) { 5475 ctl_set_invalid_field(ctsio, 5476 /*sks_valid*/ 1, 5477 /*command*/ 1, 5478 /*field*/ 1, 5479 /*bit_valid*/ 1, 5480 /*bit*/ 0); 5481 ctl_done((union ctl_io *)ctsio); 5482 return (CTL_RETVAL_COMPLETE); 5483 } 5484 5485 if ((lun->flags & CTL_LUN_PR_RESERVED) 5486 && ((cdb->how & SSS_START)==0)) { 5487 uint32_t residx; 5488 5489 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5490 if (!lun->per_res[residx].registered 5491 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5492 5493 ctl_set_reservation_conflict(ctsio); 5494 ctl_done((union ctl_io *)ctsio); 5495 return (CTL_RETVAL_COMPLETE); 5496 } 5497 } 5498 5499 /* 5500 * If there is no backend on this device, we can't start or stop 5501 * it. In theory we shouldn't get any start/stop commands in the 5502 * first place at this level if the LUN doesn't have a backend. 5503 * That should get stopped by the command decode code. 5504 */ 5505 if (lun->backend == NULL) { 5506 ctl_set_invalid_opcode(ctsio); 5507 ctl_done((union ctl_io *)ctsio); 5508 return (CTL_RETVAL_COMPLETE); 5509 } 5510 5511 /* 5512 * XXX KDM Copan-specific offline behavior. 5513 * Figure out a reasonable way to port this? 5514 */ 5515#ifdef NEEDTOPORT 5516 mtx_lock(&lun->lun_lock); 5517 5518 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5519 && (lun->flags & CTL_LUN_OFFLINE)) { 5520 /* 5521 * If the LUN is offline, and the on/offline bit isn't set, 5522 * reject the start or stop. Otherwise, let it through. 5523 */ 5524 mtx_unlock(&lun->lun_lock); 5525 ctl_set_lun_not_ready(ctsio); 5526 ctl_done((union ctl_io *)ctsio); 5527 } else { 5528 mtx_unlock(&lun->lun_lock); 5529#endif /* NEEDTOPORT */ 5530 /* 5531 * This could be a start or a stop when we're online, 5532 * or a stop/offline or start/online. A start or stop when 5533 * we're offline is covered in the case above. 5534 */ 5535 /* 5536 * In the non-immediate case, we send the request to 5537 * the backend and return status to the user when 5538 * it is done. 5539 * 5540 * In the immediate case, we allocate a new ctl_io 5541 * to hold a copy of the request, and send that to 5542 * the backend. We then set good status on the 5543 * user's request and return it immediately. 5544 */ 5545 if (cdb->byte2 & SSS_IMMED) { 5546 union ctl_io *new_io; 5547 5548 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5549 if (new_io == NULL) { 5550 ctl_set_busy(ctsio); 5551 ctl_done((union ctl_io *)ctsio); 5552 } else { 5553 ctl_copy_io((union ctl_io *)ctsio, 5554 new_io); 5555 retval = lun->backend->config_write(new_io); 5556 ctl_set_success(ctsio); 5557 ctl_done((union ctl_io *)ctsio); 5558 } 5559 } else { 5560 retval = lun->backend->config_write( 5561 (union ctl_io *)ctsio); 5562 } 5563#ifdef NEEDTOPORT 5564 } 5565#endif 5566 return (retval); 5567} 5568 5569/* 5570 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5571 * we don't really do anything with the LBA and length fields if the user 5572 * passes them in. Instead we'll just flush out the cache for the entire 5573 * LUN. 5574 */ 5575int 5576ctl_sync_cache(struct ctl_scsiio *ctsio) 5577{ 5578 struct ctl_lun *lun; 5579 struct ctl_softc *ctl_softc; 5580 uint64_t starting_lba; 5581 uint32_t block_count; 5582 int retval; 5583 5584 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5585 5586 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5587 ctl_softc = control_softc; 5588 retval = 0; 5589 5590 switch (ctsio->cdb[0]) { 5591 case SYNCHRONIZE_CACHE: { 5592 struct scsi_sync_cache *cdb; 5593 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5594 5595 starting_lba = scsi_4btoul(cdb->begin_lba); 5596 block_count = scsi_2btoul(cdb->lb_count); 5597 break; 5598 } 5599 case SYNCHRONIZE_CACHE_16: { 5600 struct scsi_sync_cache_16 *cdb; 5601 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5602 5603 starting_lba = scsi_8btou64(cdb->begin_lba); 5604 block_count = scsi_4btoul(cdb->lb_count); 5605 break; 5606 } 5607 default: 5608 ctl_set_invalid_opcode(ctsio); 5609 ctl_done((union ctl_io *)ctsio); 5610 goto bailout; 5611 break; /* NOTREACHED */ 5612 } 5613 5614 /* 5615 * We check the LBA and length, but don't do anything with them. 5616 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5617 * get flushed. This check will just help satisfy anyone who wants 5618 * to see an error for an out of range LBA. 5619 */ 5620 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5621 ctl_set_lba_out_of_range(ctsio); 5622 ctl_done((union ctl_io *)ctsio); 5623 goto bailout; 5624 } 5625 5626 /* 5627 * If this LUN has no backend, we can't flush the cache anyway. 5628 */ 5629 if (lun->backend == NULL) { 5630 ctl_set_invalid_opcode(ctsio); 5631 ctl_done((union ctl_io *)ctsio); 5632 goto bailout; 5633 } 5634 5635 /* 5636 * Check to see whether we're configured to send the SYNCHRONIZE 5637 * CACHE command directly to the back end. 5638 */ 5639 mtx_lock(&lun->lun_lock); 5640 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5641 && (++(lun->sync_count) >= lun->sync_interval)) { 5642 lun->sync_count = 0; 5643 mtx_unlock(&lun->lun_lock); 5644 retval = lun->backend->config_write((union ctl_io *)ctsio); 5645 } else { 5646 mtx_unlock(&lun->lun_lock); 5647 ctl_set_success(ctsio); 5648 ctl_done((union ctl_io *)ctsio); 5649 } 5650 5651bailout: 5652 5653 return (retval); 5654} 5655 5656int 5657ctl_format(struct ctl_scsiio *ctsio) 5658{ 5659 struct scsi_format *cdb; 5660 struct ctl_lun *lun; 5661 struct ctl_softc *ctl_softc; 5662 int length, defect_list_len; 5663 5664 CTL_DEBUG_PRINT(("ctl_format\n")); 5665 5666 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5667 ctl_softc = control_softc; 5668 5669 cdb = (struct scsi_format *)ctsio->cdb; 5670 5671 length = 0; 5672 if (cdb->byte2 & SF_FMTDATA) { 5673 if (cdb->byte2 & SF_LONGLIST) 5674 length = sizeof(struct scsi_format_header_long); 5675 else 5676 length = sizeof(struct scsi_format_header_short); 5677 } 5678 5679 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5680 && (length > 0)) { 5681 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5682 ctsio->kern_data_len = length; 5683 ctsio->kern_total_len = length; 5684 ctsio->kern_data_resid = 0; 5685 ctsio->kern_rel_offset = 0; 5686 ctsio->kern_sg_entries = 0; 5687 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5688 ctsio->be_move_done = ctl_config_move_done; 5689 ctl_datamove((union ctl_io *)ctsio); 5690 5691 return (CTL_RETVAL_COMPLETE); 5692 } 5693 5694 defect_list_len = 0; 5695 5696 if (cdb->byte2 & SF_FMTDATA) { 5697 if (cdb->byte2 & SF_LONGLIST) { 5698 struct scsi_format_header_long *header; 5699 5700 header = (struct scsi_format_header_long *) 5701 ctsio->kern_data_ptr; 5702 5703 defect_list_len = scsi_4btoul(header->defect_list_len); 5704 if (defect_list_len != 0) { 5705 ctl_set_invalid_field(ctsio, 5706 /*sks_valid*/ 1, 5707 /*command*/ 0, 5708 /*field*/ 2, 5709 /*bit_valid*/ 0, 5710 /*bit*/ 0); 5711 goto bailout; 5712 } 5713 } else { 5714 struct scsi_format_header_short *header; 5715 5716 header = (struct scsi_format_header_short *) 5717 ctsio->kern_data_ptr; 5718 5719 defect_list_len = scsi_2btoul(header->defect_list_len); 5720 if (defect_list_len != 0) { 5721 ctl_set_invalid_field(ctsio, 5722 /*sks_valid*/ 1, 5723 /*command*/ 0, 5724 /*field*/ 2, 5725 /*bit_valid*/ 0, 5726 /*bit*/ 0); 5727 goto bailout; 5728 } 5729 } 5730 } 5731 5732 /* 5733 * The format command will clear out the "Medium format corrupted" 5734 * status if set by the configuration code. That status is really 5735 * just a way to notify the host that we have lost the media, and 5736 * get them to issue a command that will basically make them think 5737 * they're blowing away the media. 5738 */ 5739 mtx_lock(&lun->lun_lock); 5740 lun->flags &= ~CTL_LUN_INOPERABLE; 5741 mtx_unlock(&lun->lun_lock); 5742 5743 ctsio->scsi_status = SCSI_STATUS_OK; 5744 ctsio->io_hdr.status = CTL_SUCCESS; 5745bailout: 5746 5747 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5748 free(ctsio->kern_data_ptr, M_CTL); 5749 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5750 } 5751 5752 ctl_done((union ctl_io *)ctsio); 5753 return (CTL_RETVAL_COMPLETE); 5754} 5755 5756int 5757ctl_read_buffer(struct ctl_scsiio *ctsio) 5758{ 5759 struct scsi_read_buffer *cdb; 5760 struct ctl_lun *lun; 5761 int buffer_offset, len; 5762 static uint8_t descr[4]; 5763 static uint8_t echo_descr[4] = { 0 }; 5764 5765 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5766 5767 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5768 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5769 5770 if (lun->flags & CTL_LUN_PR_RESERVED) { 5771 uint32_t residx; 5772 5773 /* 5774 * XXX KDM need a lock here. 5775 */ 5776 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5777 if ((lun->res_type == SPR_TYPE_EX_AC 5778 && residx != lun->pr_res_idx) 5779 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5780 || lun->res_type == SPR_TYPE_EX_AC_AR) 5781 && !lun->per_res[residx].registered)) { 5782 ctl_set_reservation_conflict(ctsio); 5783 ctl_done((union ctl_io *)ctsio); 5784 return (CTL_RETVAL_COMPLETE); 5785 } 5786 } 5787 5788 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5789 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5790 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5791 ctl_set_invalid_field(ctsio, 5792 /*sks_valid*/ 1, 5793 /*command*/ 1, 5794 /*field*/ 1, 5795 /*bit_valid*/ 1, 5796 /*bit*/ 4); 5797 ctl_done((union ctl_io *)ctsio); 5798 return (CTL_RETVAL_COMPLETE); 5799 } 5800 5801 len = scsi_3btoul(cdb->length); 5802 buffer_offset = scsi_3btoul(cdb->offset); 5803 5804 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5805 ctl_set_invalid_field(ctsio, 5806 /*sks_valid*/ 1, 5807 /*command*/ 1, 5808 /*field*/ 6, 5809 /*bit_valid*/ 0, 5810 /*bit*/ 0); 5811 ctl_done((union ctl_io *)ctsio); 5812 return (CTL_RETVAL_COMPLETE); 5813 } 5814 5815 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5816 descr[0] = 0; 5817 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5818 ctsio->kern_data_ptr = descr; 5819 len = min(len, sizeof(descr)); 5820 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5821 ctsio->kern_data_ptr = echo_descr; 5822 len = min(len, sizeof(echo_descr)); 5823 } else 5824 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5825 ctsio->kern_data_len = len; 5826 ctsio->kern_total_len = len; 5827 ctsio->kern_data_resid = 0; 5828 ctsio->kern_rel_offset = 0; 5829 ctsio->kern_sg_entries = 0; 5830 ctsio->be_move_done = ctl_config_move_done; 5831 ctl_datamove((union ctl_io *)ctsio); 5832 5833 return (CTL_RETVAL_COMPLETE); 5834} 5835 5836int 5837ctl_write_buffer(struct ctl_scsiio *ctsio) 5838{ 5839 struct scsi_write_buffer *cdb; 5840 struct ctl_lun *lun; 5841 int buffer_offset, len; 5842 5843 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5844 5845 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5846 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5847 5848 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5849 ctl_set_invalid_field(ctsio, 5850 /*sks_valid*/ 1, 5851 /*command*/ 1, 5852 /*field*/ 1, 5853 /*bit_valid*/ 1, 5854 /*bit*/ 4); 5855 ctl_done((union ctl_io *)ctsio); 5856 return (CTL_RETVAL_COMPLETE); 5857 } 5858 5859 len = scsi_3btoul(cdb->length); 5860 buffer_offset = scsi_3btoul(cdb->offset); 5861 5862 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5863 ctl_set_invalid_field(ctsio, 5864 /*sks_valid*/ 1, 5865 /*command*/ 1, 5866 /*field*/ 6, 5867 /*bit_valid*/ 0, 5868 /*bit*/ 0); 5869 ctl_done((union ctl_io *)ctsio); 5870 return (CTL_RETVAL_COMPLETE); 5871 } 5872 5873 /* 5874 * If we've got a kernel request that hasn't been malloced yet, 5875 * malloc it and tell the caller the data buffer is here. 5876 */ 5877 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5878 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5879 ctsio->kern_data_len = len; 5880 ctsio->kern_total_len = len; 5881 ctsio->kern_data_resid = 0; 5882 ctsio->kern_rel_offset = 0; 5883 ctsio->kern_sg_entries = 0; 5884 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5885 ctsio->be_move_done = ctl_config_move_done; 5886 ctl_datamove((union ctl_io *)ctsio); 5887 5888 return (CTL_RETVAL_COMPLETE); 5889 } 5890 5891 ctl_done((union ctl_io *)ctsio); 5892 5893 return (CTL_RETVAL_COMPLETE); 5894} 5895 5896int 5897ctl_write_same(struct ctl_scsiio *ctsio) 5898{ 5899 struct ctl_lun *lun; 5900 struct ctl_lba_len_flags *lbalen; 5901 uint64_t lba; 5902 uint32_t num_blocks; 5903 int len, retval; 5904 uint8_t byte2; 5905 5906 retval = CTL_RETVAL_COMPLETE; 5907 5908 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5909 5910 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5911 5912 switch (ctsio->cdb[0]) { 5913 case WRITE_SAME_10: { 5914 struct scsi_write_same_10 *cdb; 5915 5916 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5917 5918 lba = scsi_4btoul(cdb->addr); 5919 num_blocks = scsi_2btoul(cdb->length); 5920 byte2 = cdb->byte2; 5921 break; 5922 } 5923 case WRITE_SAME_16: { 5924 struct scsi_write_same_16 *cdb; 5925 5926 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5927 5928 lba = scsi_8btou64(cdb->addr); 5929 num_blocks = scsi_4btoul(cdb->length); 5930 byte2 = cdb->byte2; 5931 break; 5932 } 5933 default: 5934 /* 5935 * We got a command we don't support. This shouldn't 5936 * happen, commands should be filtered out above us. 5937 */ 5938 ctl_set_invalid_opcode(ctsio); 5939 ctl_done((union ctl_io *)ctsio); 5940 5941 return (CTL_RETVAL_COMPLETE); 5942 break; /* NOTREACHED */ 5943 } 5944 5945 /* 5946 * The first check is to make sure we're in bounds, the second 5947 * check is to catch wrap-around problems. If the lba + num blocks 5948 * is less than the lba, then we've wrapped around and the block 5949 * range is invalid anyway. 5950 */ 5951 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5952 || ((lba + num_blocks) < lba)) { 5953 ctl_set_lba_out_of_range(ctsio); 5954 ctl_done((union ctl_io *)ctsio); 5955 return (CTL_RETVAL_COMPLETE); 5956 } 5957 5958 /* Zero number of blocks means "to the last logical block" */ 5959 if (num_blocks == 0) { 5960 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5961 ctl_set_invalid_field(ctsio, 5962 /*sks_valid*/ 0, 5963 /*command*/ 1, 5964 /*field*/ 0, 5965 /*bit_valid*/ 0, 5966 /*bit*/ 0); 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969 } 5970 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5971 } 5972 5973 len = lun->be_lun->blocksize; 5974 5975 /* 5976 * If we've got a kernel request that hasn't been malloced yet, 5977 * malloc it and tell the caller the data buffer is here. 5978 */ 5979 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5980 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5981 ctsio->kern_data_len = len; 5982 ctsio->kern_total_len = len; 5983 ctsio->kern_data_resid = 0; 5984 ctsio->kern_rel_offset = 0; 5985 ctsio->kern_sg_entries = 0; 5986 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5987 ctsio->be_move_done = ctl_config_move_done; 5988 ctl_datamove((union ctl_io *)ctsio); 5989 5990 return (CTL_RETVAL_COMPLETE); 5991 } 5992 5993 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5994 lbalen->lba = lba; 5995 lbalen->len = num_blocks; 5996 lbalen->flags = byte2; 5997 retval = lun->backend->config_write((union ctl_io *)ctsio); 5998 5999 return (retval); 6000} 6001 6002int 6003ctl_unmap(struct ctl_scsiio *ctsio) 6004{ 6005 struct ctl_lun *lun; 6006 struct scsi_unmap *cdb; 6007 struct ctl_ptr_len_flags *ptrlen; 6008 struct scsi_unmap_header *hdr; 6009 struct scsi_unmap_desc *buf, *end; 6010 uint64_t lba; 6011 uint32_t num_blocks; 6012 int len, retval; 6013 uint8_t byte2; 6014 6015 retval = CTL_RETVAL_COMPLETE; 6016 6017 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6018 6019 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6020 cdb = (struct scsi_unmap *)ctsio->cdb; 6021 6022 len = scsi_2btoul(cdb->length); 6023 byte2 = cdb->byte2; 6024 6025 /* 6026 * If we've got a kernel request that hasn't been malloced yet, 6027 * malloc it and tell the caller the data buffer is here. 6028 */ 6029 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6030 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6031 ctsio->kern_data_len = len; 6032 ctsio->kern_total_len = len; 6033 ctsio->kern_data_resid = 0; 6034 ctsio->kern_rel_offset = 0; 6035 ctsio->kern_sg_entries = 0; 6036 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6037 ctsio->be_move_done = ctl_config_move_done; 6038 ctl_datamove((union ctl_io *)ctsio); 6039 6040 return (CTL_RETVAL_COMPLETE); 6041 } 6042 6043 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6044 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6045 if (len < sizeof (*hdr) || 6046 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6047 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6048 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6049 ctl_set_invalid_field(ctsio, 6050 /*sks_valid*/ 0, 6051 /*command*/ 0, 6052 /*field*/ 0, 6053 /*bit_valid*/ 0, 6054 /*bit*/ 0); 6055 ctl_done((union ctl_io *)ctsio); 6056 return (CTL_RETVAL_COMPLETE); 6057 } 6058 len = scsi_2btoul(hdr->desc_length); 6059 buf = (struct scsi_unmap_desc *)(hdr + 1); 6060 end = buf + len / sizeof(*buf); 6061 6062 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6063 ptrlen->ptr = (void *)buf; 6064 ptrlen->len = len; 6065 ptrlen->flags = byte2; 6066 6067 for (; buf < end; buf++) { 6068 lba = scsi_8btou64(buf->lba); 6069 num_blocks = scsi_4btoul(buf->length); 6070 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6071 || ((lba + num_blocks) < lba)) { 6072 ctl_set_lba_out_of_range(ctsio); 6073 ctl_done((union ctl_io *)ctsio); 6074 return (CTL_RETVAL_COMPLETE); 6075 } 6076 } 6077 6078 retval = lun->backend->config_write((union ctl_io *)ctsio); 6079 6080 return (retval); 6081} 6082 6083/* 6084 * Note that this function currently doesn't actually do anything inside 6085 * CTL to enforce things if the DQue bit is turned on. 6086 * 6087 * Also note that this function can't be used in the default case, because 6088 * the DQue bit isn't set in the changeable mask for the control mode page 6089 * anyway. This is just here as an example for how to implement a page 6090 * handler, and a placeholder in case we want to allow the user to turn 6091 * tagged queueing on and off. 6092 * 6093 * The D_SENSE bit handling is functional, however, and will turn 6094 * descriptor sense on and off for a given LUN. 6095 */ 6096int 6097ctl_control_page_handler(struct ctl_scsiio *ctsio, 6098 struct ctl_page_index *page_index, uint8_t *page_ptr) 6099{ 6100 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6101 struct ctl_lun *lun; 6102 struct ctl_softc *softc; 6103 int set_ua; 6104 uint32_t initidx; 6105 6106 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6107 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6108 set_ua = 0; 6109 6110 user_cp = (struct scsi_control_page *)page_ptr; 6111 current_cp = (struct scsi_control_page *) 6112 (page_index->page_data + (page_index->page_len * 6113 CTL_PAGE_CURRENT)); 6114 saved_cp = (struct scsi_control_page *) 6115 (page_index->page_data + (page_index->page_len * 6116 CTL_PAGE_SAVED)); 6117 6118 softc = control_softc; 6119 6120 mtx_lock(&lun->lun_lock); 6121 if (((current_cp->rlec & SCP_DSENSE) == 0) 6122 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6123 /* 6124 * Descriptor sense is currently turned off and the user 6125 * wants to turn it on. 6126 */ 6127 current_cp->rlec |= SCP_DSENSE; 6128 saved_cp->rlec |= SCP_DSENSE; 6129 lun->flags |= CTL_LUN_SENSE_DESC; 6130 set_ua = 1; 6131 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6132 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6133 /* 6134 * Descriptor sense is currently turned on, and the user 6135 * wants to turn it off. 6136 */ 6137 current_cp->rlec &= ~SCP_DSENSE; 6138 saved_cp->rlec &= ~SCP_DSENSE; 6139 lun->flags &= ~CTL_LUN_SENSE_DESC; 6140 set_ua = 1; 6141 } 6142 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6143 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6144#ifdef NEEDTOPORT 6145 csevent_log(CSC_CTL | CSC_SHELF_SW | 6146 CTL_UNTAG_TO_UNTAG, 6147 csevent_LogType_Trace, 6148 csevent_Severity_Information, 6149 csevent_AlertLevel_Green, 6150 csevent_FRU_Firmware, 6151 csevent_FRU_Unknown, 6152 "Received untagged to untagged transition"); 6153#endif /* NEEDTOPORT */ 6154 } else { 6155#ifdef NEEDTOPORT 6156 csevent_log(CSC_CTL | CSC_SHELF_SW | 6157 CTL_UNTAG_TO_TAG, 6158 csevent_LogType_ConfigChange, 6159 csevent_Severity_Information, 6160 csevent_AlertLevel_Green, 6161 csevent_FRU_Firmware, 6162 csevent_FRU_Unknown, 6163 "Received untagged to tagged " 6164 "queueing transition"); 6165#endif /* NEEDTOPORT */ 6166 6167 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6168 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6169 set_ua = 1; 6170 } 6171 } else { 6172 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6173#ifdef NEEDTOPORT 6174 csevent_log(CSC_CTL | CSC_SHELF_SW | 6175 CTL_TAG_TO_UNTAG, 6176 csevent_LogType_ConfigChange, 6177 csevent_Severity_Warning, 6178 csevent_AlertLevel_Yellow, 6179 csevent_FRU_Firmware, 6180 csevent_FRU_Unknown, 6181 "Received tagged queueing to untagged " 6182 "transition"); 6183#endif /* NEEDTOPORT */ 6184 6185 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6186 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6187 set_ua = 1; 6188 } else { 6189#ifdef NEEDTOPORT 6190 csevent_log(CSC_CTL | CSC_SHELF_SW | 6191 CTL_TAG_TO_TAG, 6192 csevent_LogType_Trace, 6193 csevent_Severity_Information, 6194 csevent_AlertLevel_Green, 6195 csevent_FRU_Firmware, 6196 csevent_FRU_Unknown, 6197 "Received tagged queueing to tagged " 6198 "queueing transition"); 6199#endif /* NEEDTOPORT */ 6200 } 6201 } 6202 if (set_ua != 0) { 6203 int i; 6204 /* 6205 * Let other initiators know that the mode 6206 * parameters for this LUN have changed. 6207 */ 6208 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6209 if (i == initidx) 6210 continue; 6211 6212 lun->pending_sense[i].ua_pending |= 6213 CTL_UA_MODE_CHANGE; 6214 } 6215 } 6216 mtx_unlock(&lun->lun_lock); 6217 6218 return (0); 6219} 6220 6221int 6222ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6223 struct ctl_page_index *page_index, uint8_t *page_ptr) 6224{ 6225 return (0); 6226} 6227 6228int 6229ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6230 struct ctl_page_index *page_index, int pc) 6231{ 6232 struct copan_power_subpage *page; 6233 6234 page = (struct copan_power_subpage *)page_index->page_data + 6235 (page_index->page_len * pc); 6236 6237 switch (pc) { 6238 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6239 /* 6240 * We don't update the changable bits for this page. 6241 */ 6242 break; 6243 case SMS_PAGE_CTRL_CURRENT >> 6: 6244 case SMS_PAGE_CTRL_DEFAULT >> 6: 6245 case SMS_PAGE_CTRL_SAVED >> 6: 6246#ifdef NEEDTOPORT 6247 ctl_update_power_subpage(page); 6248#endif 6249 break; 6250 default: 6251#ifdef NEEDTOPORT 6252 EPRINT(0, "Invalid PC %d!!", pc); 6253#endif 6254 break; 6255 } 6256 return (0); 6257} 6258 6259 6260int 6261ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6262 struct ctl_page_index *page_index, uint8_t *page_ptr) 6263{ 6264 struct copan_aps_subpage *user_sp; 6265 struct copan_aps_subpage *current_sp; 6266 union ctl_modepage_info *modepage_info; 6267 struct ctl_softc *softc; 6268 struct ctl_lun *lun; 6269 int retval; 6270 6271 retval = CTL_RETVAL_COMPLETE; 6272 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6273 (page_index->page_len * CTL_PAGE_CURRENT)); 6274 softc = control_softc; 6275 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6276 6277 user_sp = (struct copan_aps_subpage *)page_ptr; 6278 6279 modepage_info = (union ctl_modepage_info *) 6280 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6281 6282 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6283 modepage_info->header.subpage = page_index->subpage; 6284 modepage_info->aps.lock_active = user_sp->lock_active; 6285 6286 mtx_lock(&softc->ctl_lock); 6287 6288 /* 6289 * If there is a request to lock the LUN and another LUN is locked 6290 * this is an error. If the requested LUN is already locked ignore 6291 * the request. If no LUN is locked attempt to lock it. 6292 * if there is a request to unlock the LUN and the LUN is currently 6293 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6294 * if another LUN is locked or no LUN is locked. 6295 */ 6296 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6297 if (softc->aps_locked_lun == lun->lun) { 6298 /* 6299 * This LUN is already locked, so we're done. 6300 */ 6301 retval = CTL_RETVAL_COMPLETE; 6302 } else if (softc->aps_locked_lun == 0) { 6303 /* 6304 * No one has the lock, pass the request to the 6305 * backend. 6306 */ 6307 retval = lun->backend->config_write( 6308 (union ctl_io *)ctsio); 6309 } else { 6310 /* 6311 * Someone else has the lock, throw out the request. 6312 */ 6313 ctl_set_already_locked(ctsio); 6314 free(ctsio->kern_data_ptr, M_CTL); 6315 ctl_done((union ctl_io *)ctsio); 6316 6317 /* 6318 * Set the return value so that ctl_do_mode_select() 6319 * won't try to complete the command. We already 6320 * completed it here. 6321 */ 6322 retval = CTL_RETVAL_ERROR; 6323 } 6324 } else if (softc->aps_locked_lun == lun->lun) { 6325 /* 6326 * This LUN is locked, so pass the unlock request to the 6327 * backend. 6328 */ 6329 retval = lun->backend->config_write((union ctl_io *)ctsio); 6330 } 6331 mtx_unlock(&softc->ctl_lock); 6332 6333 return (retval); 6334} 6335 6336int 6337ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6338 struct ctl_page_index *page_index, 6339 uint8_t *page_ptr) 6340{ 6341 uint8_t *c; 6342 int i; 6343 6344 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6345 ctl_time_io_secs = 6346 (c[0] << 8) | 6347 (c[1] << 0) | 6348 0; 6349 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6350 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6351 printf("page data:"); 6352 for (i=0; i<8; i++) 6353 printf(" %.2x",page_ptr[i]); 6354 printf("\n"); 6355 return (0); 6356} 6357 6358int 6359ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6360 struct ctl_page_index *page_index, 6361 int pc) 6362{ 6363 struct copan_debugconf_subpage *page; 6364 6365 page = (struct copan_debugconf_subpage *)page_index->page_data + 6366 (page_index->page_len * pc); 6367 6368 switch (pc) { 6369 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6370 case SMS_PAGE_CTRL_DEFAULT >> 6: 6371 case SMS_PAGE_CTRL_SAVED >> 6: 6372 /* 6373 * We don't update the changable or default bits for this page. 6374 */ 6375 break; 6376 case SMS_PAGE_CTRL_CURRENT >> 6: 6377 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6378 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6379 break; 6380 default: 6381#ifdef NEEDTOPORT 6382 EPRINT(0, "Invalid PC %d!!", pc); 6383#endif /* NEEDTOPORT */ 6384 break; 6385 } 6386 return (0); 6387} 6388 6389 6390static int 6391ctl_do_mode_select(union ctl_io *io) 6392{ 6393 struct scsi_mode_page_header *page_header; 6394 struct ctl_page_index *page_index; 6395 struct ctl_scsiio *ctsio; 6396 int control_dev, page_len; 6397 int page_len_offset, page_len_size; 6398 union ctl_modepage_info *modepage_info; 6399 struct ctl_lun *lun; 6400 int *len_left, *len_used; 6401 int retval, i; 6402 6403 ctsio = &io->scsiio; 6404 page_index = NULL; 6405 page_len = 0; 6406 retval = CTL_RETVAL_COMPLETE; 6407 6408 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6409 6410 if (lun->be_lun->lun_type != T_DIRECT) 6411 control_dev = 1; 6412 else 6413 control_dev = 0; 6414 6415 modepage_info = (union ctl_modepage_info *) 6416 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6417 len_left = &modepage_info->header.len_left; 6418 len_used = &modepage_info->header.len_used; 6419 6420do_next_page: 6421 6422 page_header = (struct scsi_mode_page_header *) 6423 (ctsio->kern_data_ptr + *len_used); 6424 6425 if (*len_left == 0) { 6426 free(ctsio->kern_data_ptr, M_CTL); 6427 ctl_set_success(ctsio); 6428 ctl_done((union ctl_io *)ctsio); 6429 return (CTL_RETVAL_COMPLETE); 6430 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6431 6432 free(ctsio->kern_data_ptr, M_CTL); 6433 ctl_set_param_len_error(ctsio); 6434 ctl_done((union ctl_io *)ctsio); 6435 return (CTL_RETVAL_COMPLETE); 6436 6437 } else if ((page_header->page_code & SMPH_SPF) 6438 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6439 6440 free(ctsio->kern_data_ptr, M_CTL); 6441 ctl_set_param_len_error(ctsio); 6442 ctl_done((union ctl_io *)ctsio); 6443 return (CTL_RETVAL_COMPLETE); 6444 } 6445 6446 6447 /* 6448 * XXX KDM should we do something with the block descriptor? 6449 */ 6450 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6451 6452 if ((control_dev != 0) 6453 && (lun->mode_pages.index[i].page_flags & 6454 CTL_PAGE_FLAG_DISK_ONLY)) 6455 continue; 6456 6457 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6458 (page_header->page_code & SMPH_PC_MASK)) 6459 continue; 6460 6461 /* 6462 * If neither page has a subpage code, then we've got a 6463 * match. 6464 */ 6465 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6466 && ((page_header->page_code & SMPH_SPF) == 0)) { 6467 page_index = &lun->mode_pages.index[i]; 6468 page_len = page_header->page_length; 6469 break; 6470 } 6471 6472 /* 6473 * If both pages have subpages, then the subpage numbers 6474 * have to match. 6475 */ 6476 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6477 && (page_header->page_code & SMPH_SPF)) { 6478 struct scsi_mode_page_header_sp *sph; 6479 6480 sph = (struct scsi_mode_page_header_sp *)page_header; 6481 6482 if (lun->mode_pages.index[i].subpage == 6483 sph->subpage) { 6484 page_index = &lun->mode_pages.index[i]; 6485 page_len = scsi_2btoul(sph->page_length); 6486 break; 6487 } 6488 } 6489 } 6490 6491 /* 6492 * If we couldn't find the page, or if we don't have a mode select 6493 * handler for it, send back an error to the user. 6494 */ 6495 if ((page_index == NULL) 6496 || (page_index->select_handler == NULL)) { 6497 ctl_set_invalid_field(ctsio, 6498 /*sks_valid*/ 1, 6499 /*command*/ 0, 6500 /*field*/ *len_used, 6501 /*bit_valid*/ 0, 6502 /*bit*/ 0); 6503 free(ctsio->kern_data_ptr, M_CTL); 6504 ctl_done((union ctl_io *)ctsio); 6505 return (CTL_RETVAL_COMPLETE); 6506 } 6507 6508 if (page_index->page_code & SMPH_SPF) { 6509 page_len_offset = 2; 6510 page_len_size = 2; 6511 } else { 6512 page_len_size = 1; 6513 page_len_offset = 1; 6514 } 6515 6516 /* 6517 * If the length the initiator gives us isn't the one we specify in 6518 * the mode page header, or if they didn't specify enough data in 6519 * the CDB to avoid truncating this page, kick out the request. 6520 */ 6521 if ((page_len != (page_index->page_len - page_len_offset - 6522 page_len_size)) 6523 || (*len_left < page_index->page_len)) { 6524 6525 6526 ctl_set_invalid_field(ctsio, 6527 /*sks_valid*/ 1, 6528 /*command*/ 0, 6529 /*field*/ *len_used + page_len_offset, 6530 /*bit_valid*/ 0, 6531 /*bit*/ 0); 6532 free(ctsio->kern_data_ptr, M_CTL); 6533 ctl_done((union ctl_io *)ctsio); 6534 return (CTL_RETVAL_COMPLETE); 6535 } 6536 6537 /* 6538 * Run through the mode page, checking to make sure that the bits 6539 * the user changed are actually legal for him to change. 6540 */ 6541 for (i = 0; i < page_index->page_len; i++) { 6542 uint8_t *user_byte, *change_mask, *current_byte; 6543 int bad_bit; 6544 int j; 6545 6546 user_byte = (uint8_t *)page_header + i; 6547 change_mask = page_index->page_data + 6548 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6549 current_byte = page_index->page_data + 6550 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6551 6552 /* 6553 * Check to see whether the user set any bits in this byte 6554 * that he is not allowed to set. 6555 */ 6556 if ((*user_byte & ~(*change_mask)) == 6557 (*current_byte & ~(*change_mask))) 6558 continue; 6559 6560 /* 6561 * Go through bit by bit to determine which one is illegal. 6562 */ 6563 bad_bit = 0; 6564 for (j = 7; j >= 0; j--) { 6565 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6566 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6567 bad_bit = i; 6568 break; 6569 } 6570 } 6571 ctl_set_invalid_field(ctsio, 6572 /*sks_valid*/ 1, 6573 /*command*/ 0, 6574 /*field*/ *len_used + i, 6575 /*bit_valid*/ 1, 6576 /*bit*/ bad_bit); 6577 free(ctsio->kern_data_ptr, M_CTL); 6578 ctl_done((union ctl_io *)ctsio); 6579 return (CTL_RETVAL_COMPLETE); 6580 } 6581 6582 /* 6583 * Decrement these before we call the page handler, since we may 6584 * end up getting called back one way or another before the handler 6585 * returns to this context. 6586 */ 6587 *len_left -= page_index->page_len; 6588 *len_used += page_index->page_len; 6589 6590 retval = page_index->select_handler(ctsio, page_index, 6591 (uint8_t *)page_header); 6592 6593 /* 6594 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6595 * wait until this queued command completes to finish processing 6596 * the mode page. If it returns anything other than 6597 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6598 * already set the sense information, freed the data pointer, and 6599 * completed the io for us. 6600 */ 6601 if (retval != CTL_RETVAL_COMPLETE) 6602 goto bailout_no_done; 6603 6604 /* 6605 * If the initiator sent us more than one page, parse the next one. 6606 */ 6607 if (*len_left > 0) 6608 goto do_next_page; 6609 6610 ctl_set_success(ctsio); 6611 free(ctsio->kern_data_ptr, M_CTL); 6612 ctl_done((union ctl_io *)ctsio); 6613 6614bailout_no_done: 6615 6616 return (CTL_RETVAL_COMPLETE); 6617 6618} 6619 6620int 6621ctl_mode_select(struct ctl_scsiio *ctsio) 6622{ 6623 int param_len, pf, sp; 6624 int header_size, bd_len; 6625 int len_left, len_used; 6626 struct ctl_page_index *page_index; 6627 struct ctl_lun *lun; 6628 int control_dev, page_len; 6629 union ctl_modepage_info *modepage_info; 6630 int retval; 6631 6632 pf = 0; 6633 sp = 0; 6634 page_len = 0; 6635 len_used = 0; 6636 len_left = 0; 6637 retval = 0; 6638 bd_len = 0; 6639 page_index = NULL; 6640 6641 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6642 6643 if (lun->be_lun->lun_type != T_DIRECT) 6644 control_dev = 1; 6645 else 6646 control_dev = 0; 6647 6648 switch (ctsio->cdb[0]) { 6649 case MODE_SELECT_6: { 6650 struct scsi_mode_select_6 *cdb; 6651 6652 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6653 6654 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6655 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6656 6657 param_len = cdb->length; 6658 header_size = sizeof(struct scsi_mode_header_6); 6659 break; 6660 } 6661 case MODE_SELECT_10: { 6662 struct scsi_mode_select_10 *cdb; 6663 6664 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6665 6666 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6667 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6668 6669 param_len = scsi_2btoul(cdb->length); 6670 header_size = sizeof(struct scsi_mode_header_10); 6671 break; 6672 } 6673 default: 6674 ctl_set_invalid_opcode(ctsio); 6675 ctl_done((union ctl_io *)ctsio); 6676 return (CTL_RETVAL_COMPLETE); 6677 break; /* NOTREACHED */ 6678 } 6679 6680 /* 6681 * From SPC-3: 6682 * "A parameter list length of zero indicates that the Data-Out Buffer 6683 * shall be empty. This condition shall not be considered as an error." 6684 */ 6685 if (param_len == 0) { 6686 ctl_set_success(ctsio); 6687 ctl_done((union ctl_io *)ctsio); 6688 return (CTL_RETVAL_COMPLETE); 6689 } 6690 6691 /* 6692 * Since we'll hit this the first time through, prior to 6693 * allocation, we don't need to free a data buffer here. 6694 */ 6695 if (param_len < header_size) { 6696 ctl_set_param_len_error(ctsio); 6697 ctl_done((union ctl_io *)ctsio); 6698 return (CTL_RETVAL_COMPLETE); 6699 } 6700 6701 /* 6702 * Allocate the data buffer and grab the user's data. In theory, 6703 * we shouldn't have to sanity check the parameter list length here 6704 * because the maximum size is 64K. We should be able to malloc 6705 * that much without too many problems. 6706 */ 6707 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6708 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6709 ctsio->kern_data_len = param_len; 6710 ctsio->kern_total_len = param_len; 6711 ctsio->kern_data_resid = 0; 6712 ctsio->kern_rel_offset = 0; 6713 ctsio->kern_sg_entries = 0; 6714 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6715 ctsio->be_move_done = ctl_config_move_done; 6716 ctl_datamove((union ctl_io *)ctsio); 6717 6718 return (CTL_RETVAL_COMPLETE); 6719 } 6720 6721 switch (ctsio->cdb[0]) { 6722 case MODE_SELECT_6: { 6723 struct scsi_mode_header_6 *mh6; 6724 6725 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6726 bd_len = mh6->blk_desc_len; 6727 break; 6728 } 6729 case MODE_SELECT_10: { 6730 struct scsi_mode_header_10 *mh10; 6731 6732 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6733 bd_len = scsi_2btoul(mh10->blk_desc_len); 6734 break; 6735 } 6736 default: 6737 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6738 break; 6739 } 6740 6741 if (param_len < (header_size + bd_len)) { 6742 free(ctsio->kern_data_ptr, M_CTL); 6743 ctl_set_param_len_error(ctsio); 6744 ctl_done((union ctl_io *)ctsio); 6745 return (CTL_RETVAL_COMPLETE); 6746 } 6747 6748 /* 6749 * Set the IO_CONT flag, so that if this I/O gets passed to 6750 * ctl_config_write_done(), it'll get passed back to 6751 * ctl_do_mode_select() for further processing, or completion if 6752 * we're all done. 6753 */ 6754 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6755 ctsio->io_cont = ctl_do_mode_select; 6756 6757 modepage_info = (union ctl_modepage_info *) 6758 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6759 6760 memset(modepage_info, 0, sizeof(*modepage_info)); 6761 6762 len_left = param_len - header_size - bd_len; 6763 len_used = header_size + bd_len; 6764 6765 modepage_info->header.len_left = len_left; 6766 modepage_info->header.len_used = len_used; 6767 6768 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6769} 6770 6771int 6772ctl_mode_sense(struct ctl_scsiio *ctsio) 6773{ 6774 struct ctl_lun *lun; 6775 int pc, page_code, dbd, llba, subpage; 6776 int alloc_len, page_len, header_len, total_len; 6777 struct scsi_mode_block_descr *block_desc; 6778 struct ctl_page_index *page_index; 6779 int control_dev; 6780 6781 dbd = 0; 6782 llba = 0; 6783 block_desc = NULL; 6784 page_index = NULL; 6785 6786 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6787 6788 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6789 6790 if (lun->be_lun->lun_type != T_DIRECT) 6791 control_dev = 1; 6792 else 6793 control_dev = 0; 6794 6795 if (lun->flags & CTL_LUN_PR_RESERVED) { 6796 uint32_t residx; 6797 6798 /* 6799 * XXX KDM need a lock here. 6800 */ 6801 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6802 if ((lun->res_type == SPR_TYPE_EX_AC 6803 && residx != lun->pr_res_idx) 6804 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6805 || lun->res_type == SPR_TYPE_EX_AC_AR) 6806 && !lun->per_res[residx].registered)) { 6807 ctl_set_reservation_conflict(ctsio); 6808 ctl_done((union ctl_io *)ctsio); 6809 return (CTL_RETVAL_COMPLETE); 6810 } 6811 } 6812 6813 switch (ctsio->cdb[0]) { 6814 case MODE_SENSE_6: { 6815 struct scsi_mode_sense_6 *cdb; 6816 6817 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6818 6819 header_len = sizeof(struct scsi_mode_hdr_6); 6820 if (cdb->byte2 & SMS_DBD) 6821 dbd = 1; 6822 else 6823 header_len += sizeof(struct scsi_mode_block_descr); 6824 6825 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6826 page_code = cdb->page & SMS_PAGE_CODE; 6827 subpage = cdb->subpage; 6828 alloc_len = cdb->length; 6829 break; 6830 } 6831 case MODE_SENSE_10: { 6832 struct scsi_mode_sense_10 *cdb; 6833 6834 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6835 6836 header_len = sizeof(struct scsi_mode_hdr_10); 6837 6838 if (cdb->byte2 & SMS_DBD) 6839 dbd = 1; 6840 else 6841 header_len += sizeof(struct scsi_mode_block_descr); 6842 if (cdb->byte2 & SMS10_LLBAA) 6843 llba = 1; 6844 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6845 page_code = cdb->page & SMS_PAGE_CODE; 6846 subpage = cdb->subpage; 6847 alloc_len = scsi_2btoul(cdb->length); 6848 break; 6849 } 6850 default: 6851 ctl_set_invalid_opcode(ctsio); 6852 ctl_done((union ctl_io *)ctsio); 6853 return (CTL_RETVAL_COMPLETE); 6854 break; /* NOTREACHED */ 6855 } 6856 6857 /* 6858 * We have to make a first pass through to calculate the size of 6859 * the pages that match the user's query. Then we allocate enough 6860 * memory to hold it, and actually copy the data into the buffer. 6861 */ 6862 switch (page_code) { 6863 case SMS_ALL_PAGES_PAGE: { 6864 int i; 6865 6866 page_len = 0; 6867 6868 /* 6869 * At the moment, values other than 0 and 0xff here are 6870 * reserved according to SPC-3. 6871 */ 6872 if ((subpage != SMS_SUBPAGE_PAGE_0) 6873 && (subpage != SMS_SUBPAGE_ALL)) { 6874 ctl_set_invalid_field(ctsio, 6875 /*sks_valid*/ 1, 6876 /*command*/ 1, 6877 /*field*/ 3, 6878 /*bit_valid*/ 0, 6879 /*bit*/ 0); 6880 ctl_done((union ctl_io *)ctsio); 6881 return (CTL_RETVAL_COMPLETE); 6882 } 6883 6884 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6885 if ((control_dev != 0) 6886 && (lun->mode_pages.index[i].page_flags & 6887 CTL_PAGE_FLAG_DISK_ONLY)) 6888 continue; 6889 6890 /* 6891 * We don't use this subpage if the user didn't 6892 * request all subpages. 6893 */ 6894 if ((lun->mode_pages.index[i].subpage != 0) 6895 && (subpage == SMS_SUBPAGE_PAGE_0)) 6896 continue; 6897 6898#if 0 6899 printf("found page %#x len %d\n", 6900 lun->mode_pages.index[i].page_code & 6901 SMPH_PC_MASK, 6902 lun->mode_pages.index[i].page_len); 6903#endif 6904 page_len += lun->mode_pages.index[i].page_len; 6905 } 6906 break; 6907 } 6908 default: { 6909 int i; 6910 6911 page_len = 0; 6912 6913 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6914 /* Look for the right page code */ 6915 if ((lun->mode_pages.index[i].page_code & 6916 SMPH_PC_MASK) != page_code) 6917 continue; 6918 6919 /* Look for the right subpage or the subpage wildcard*/ 6920 if ((lun->mode_pages.index[i].subpage != subpage) 6921 && (subpage != SMS_SUBPAGE_ALL)) 6922 continue; 6923 6924 /* Make sure the page is supported for this dev type */ 6925 if ((control_dev != 0) 6926 && (lun->mode_pages.index[i].page_flags & 6927 CTL_PAGE_FLAG_DISK_ONLY)) 6928 continue; 6929 6930#if 0 6931 printf("found page %#x len %d\n", 6932 lun->mode_pages.index[i].page_code & 6933 SMPH_PC_MASK, 6934 lun->mode_pages.index[i].page_len); 6935#endif 6936 6937 page_len += lun->mode_pages.index[i].page_len; 6938 } 6939 6940 if (page_len == 0) { 6941 ctl_set_invalid_field(ctsio, 6942 /*sks_valid*/ 1, 6943 /*command*/ 1, 6944 /*field*/ 2, 6945 /*bit_valid*/ 1, 6946 /*bit*/ 5); 6947 ctl_done((union ctl_io *)ctsio); 6948 return (CTL_RETVAL_COMPLETE); 6949 } 6950 break; 6951 } 6952 } 6953 6954 total_len = header_len + page_len; 6955#if 0 6956 printf("header_len = %d, page_len = %d, total_len = %d\n", 6957 header_len, page_len, total_len); 6958#endif 6959 6960 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6961 ctsio->kern_sg_entries = 0; 6962 ctsio->kern_data_resid = 0; 6963 ctsio->kern_rel_offset = 0; 6964 if (total_len < alloc_len) { 6965 ctsio->residual = alloc_len - total_len; 6966 ctsio->kern_data_len = total_len; 6967 ctsio->kern_total_len = total_len; 6968 } else { 6969 ctsio->residual = 0; 6970 ctsio->kern_data_len = alloc_len; 6971 ctsio->kern_total_len = alloc_len; 6972 } 6973 6974 switch (ctsio->cdb[0]) { 6975 case MODE_SENSE_6: { 6976 struct scsi_mode_hdr_6 *header; 6977 6978 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6979 6980 header->datalen = ctl_min(total_len - 1, 254); 6981 6982 if (dbd) 6983 header->block_descr_len = 0; 6984 else 6985 header->block_descr_len = 6986 sizeof(struct scsi_mode_block_descr); 6987 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6988 break; 6989 } 6990 case MODE_SENSE_10: { 6991 struct scsi_mode_hdr_10 *header; 6992 int datalen; 6993 6994 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6995 6996 datalen = ctl_min(total_len - 2, 65533); 6997 scsi_ulto2b(datalen, header->datalen); 6998 if (dbd) 6999 scsi_ulto2b(0, header->block_descr_len); 7000 else 7001 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7002 header->block_descr_len); 7003 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7004 break; 7005 } 7006 default: 7007 panic("invalid CDB type %#x", ctsio->cdb[0]); 7008 break; /* NOTREACHED */ 7009 } 7010 7011 /* 7012 * If we've got a disk, use its blocksize in the block 7013 * descriptor. Otherwise, just set it to 0. 7014 */ 7015 if (dbd == 0) { 7016 if (control_dev != 0) 7017 scsi_ulto3b(lun->be_lun->blocksize, 7018 block_desc->block_len); 7019 else 7020 scsi_ulto3b(0, block_desc->block_len); 7021 } 7022 7023 switch (page_code) { 7024 case SMS_ALL_PAGES_PAGE: { 7025 int i, data_used; 7026 7027 data_used = header_len; 7028 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7029 struct ctl_page_index *page_index; 7030 7031 page_index = &lun->mode_pages.index[i]; 7032 7033 if ((control_dev != 0) 7034 && (page_index->page_flags & 7035 CTL_PAGE_FLAG_DISK_ONLY)) 7036 continue; 7037 7038 /* 7039 * We don't use this subpage if the user didn't 7040 * request all subpages. We already checked (above) 7041 * to make sure the user only specified a subpage 7042 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7043 */ 7044 if ((page_index->subpage != 0) 7045 && (subpage == SMS_SUBPAGE_PAGE_0)) 7046 continue; 7047 7048 /* 7049 * Call the handler, if it exists, to update the 7050 * page to the latest values. 7051 */ 7052 if (page_index->sense_handler != NULL) 7053 page_index->sense_handler(ctsio, page_index,pc); 7054 7055 memcpy(ctsio->kern_data_ptr + data_used, 7056 page_index->page_data + 7057 (page_index->page_len * pc), 7058 page_index->page_len); 7059 data_used += page_index->page_len; 7060 } 7061 break; 7062 } 7063 default: { 7064 int i, data_used; 7065 7066 data_used = header_len; 7067 7068 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7069 struct ctl_page_index *page_index; 7070 7071 page_index = &lun->mode_pages.index[i]; 7072 7073 /* Look for the right page code */ 7074 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7075 continue; 7076 7077 /* Look for the right subpage or the subpage wildcard*/ 7078 if ((page_index->subpage != subpage) 7079 && (subpage != SMS_SUBPAGE_ALL)) 7080 continue; 7081 7082 /* Make sure the page is supported for this dev type */ 7083 if ((control_dev != 0) 7084 && (page_index->page_flags & 7085 CTL_PAGE_FLAG_DISK_ONLY)) 7086 continue; 7087 7088 /* 7089 * Call the handler, if it exists, to update the 7090 * page to the latest values. 7091 */ 7092 if (page_index->sense_handler != NULL) 7093 page_index->sense_handler(ctsio, page_index,pc); 7094 7095 memcpy(ctsio->kern_data_ptr + data_used, 7096 page_index->page_data + 7097 (page_index->page_len * pc), 7098 page_index->page_len); 7099 data_used += page_index->page_len; 7100 } 7101 break; 7102 } 7103 } 7104 7105 ctsio->scsi_status = SCSI_STATUS_OK; 7106 7107 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7108 ctsio->be_move_done = ctl_config_move_done; 7109 ctl_datamove((union ctl_io *)ctsio); 7110 7111 return (CTL_RETVAL_COMPLETE); 7112} 7113 7114int 7115ctl_read_capacity(struct ctl_scsiio *ctsio) 7116{ 7117 struct scsi_read_capacity *cdb; 7118 struct scsi_read_capacity_data *data; 7119 struct ctl_lun *lun; 7120 uint32_t lba; 7121 7122 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7123 7124 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7125 7126 lba = scsi_4btoul(cdb->addr); 7127 if (((cdb->pmi & SRC_PMI) == 0) 7128 && (lba != 0)) { 7129 ctl_set_invalid_field(/*ctsio*/ ctsio, 7130 /*sks_valid*/ 1, 7131 /*command*/ 1, 7132 /*field*/ 2, 7133 /*bit_valid*/ 0, 7134 /*bit*/ 0); 7135 ctl_done((union ctl_io *)ctsio); 7136 return (CTL_RETVAL_COMPLETE); 7137 } 7138 7139 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7140 7141 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7142 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7143 ctsio->residual = 0; 7144 ctsio->kern_data_len = sizeof(*data); 7145 ctsio->kern_total_len = sizeof(*data); 7146 ctsio->kern_data_resid = 0; 7147 ctsio->kern_rel_offset = 0; 7148 ctsio->kern_sg_entries = 0; 7149 7150 /* 7151 * If the maximum LBA is greater than 0xfffffffe, the user must 7152 * issue a SERVICE ACTION IN (16) command, with the read capacity 7153 * serivce action set. 7154 */ 7155 if (lun->be_lun->maxlba > 0xfffffffe) 7156 scsi_ulto4b(0xffffffff, data->addr); 7157 else 7158 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7159 7160 /* 7161 * XXX KDM this may not be 512 bytes... 7162 */ 7163 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7164 7165 ctsio->scsi_status = SCSI_STATUS_OK; 7166 7167 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7168 ctsio->be_move_done = ctl_config_move_done; 7169 ctl_datamove((union ctl_io *)ctsio); 7170 7171 return (CTL_RETVAL_COMPLETE); 7172} 7173 7174int 7175ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7176{ 7177 struct scsi_read_capacity_16 *cdb; 7178 struct scsi_read_capacity_data_long *data; 7179 struct ctl_lun *lun; 7180 uint64_t lba; 7181 uint32_t alloc_len; 7182 7183 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7184 7185 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7186 7187 alloc_len = scsi_4btoul(cdb->alloc_len); 7188 lba = scsi_8btou64(cdb->addr); 7189 7190 if ((cdb->reladr & SRC16_PMI) 7191 && (lba != 0)) { 7192 ctl_set_invalid_field(/*ctsio*/ ctsio, 7193 /*sks_valid*/ 1, 7194 /*command*/ 1, 7195 /*field*/ 2, 7196 /*bit_valid*/ 0, 7197 /*bit*/ 0); 7198 ctl_done((union ctl_io *)ctsio); 7199 return (CTL_RETVAL_COMPLETE); 7200 } 7201 7202 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7203 7204 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7205 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7206 7207 if (sizeof(*data) < alloc_len) { 7208 ctsio->residual = alloc_len - sizeof(*data); 7209 ctsio->kern_data_len = sizeof(*data); 7210 ctsio->kern_total_len = sizeof(*data); 7211 } else { 7212 ctsio->residual = 0; 7213 ctsio->kern_data_len = alloc_len; 7214 ctsio->kern_total_len = alloc_len; 7215 } 7216 ctsio->kern_data_resid = 0; 7217 ctsio->kern_rel_offset = 0; 7218 ctsio->kern_sg_entries = 0; 7219 7220 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7221 /* XXX KDM this may not be 512 bytes... */ 7222 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7223 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7224 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7225 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7226 data->lalba_lbp[0] |= SRC16_LBPME; 7227 7228 ctsio->scsi_status = SCSI_STATUS_OK; 7229 7230 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7231 ctsio->be_move_done = ctl_config_move_done; 7232 ctl_datamove((union ctl_io *)ctsio); 7233 7234 return (CTL_RETVAL_COMPLETE); 7235} 7236 7237int 7238ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7239{ 7240 struct scsi_maintenance_in *cdb; 7241 int retval; 7242 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7243 int num_target_port_groups, num_target_ports, single; 7244 struct ctl_lun *lun; 7245 struct ctl_softc *softc; 7246 struct ctl_port *port; 7247 struct scsi_target_group_data *rtg_ptr; 7248 struct scsi_target_group_data_extended *rtg_ext_ptr; 7249 struct scsi_target_port_group_descriptor *tpg_desc; 7250 7251 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7252 7253 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7254 softc = control_softc; 7255 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7256 7257 retval = CTL_RETVAL_COMPLETE; 7258 7259 switch (cdb->byte2 & STG_PDF_MASK) { 7260 case STG_PDF_LENGTH: 7261 ext = 0; 7262 break; 7263 case STG_PDF_EXTENDED: 7264 ext = 1; 7265 break; 7266 default: 7267 ctl_set_invalid_field(/*ctsio*/ ctsio, 7268 /*sks_valid*/ 1, 7269 /*command*/ 1, 7270 /*field*/ 2, 7271 /*bit_valid*/ 1, 7272 /*bit*/ 5); 7273 ctl_done((union ctl_io *)ctsio); 7274 return(retval); 7275 } 7276 7277 single = ctl_is_single; 7278 if (single) 7279 num_target_port_groups = 1; 7280 else 7281 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7282 num_target_ports = 0; 7283 mtx_lock(&softc->ctl_lock); 7284 STAILQ_FOREACH(port, &softc->port_list, links) { 7285 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7286 continue; 7287 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7288 continue; 7289 num_target_ports++; 7290 } 7291 mtx_unlock(&softc->ctl_lock); 7292 7293 if (ext) 7294 total_len = sizeof(struct scsi_target_group_data_extended); 7295 else 7296 total_len = sizeof(struct scsi_target_group_data); 7297 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7298 num_target_port_groups + 7299 sizeof(struct scsi_target_port_descriptor) * 7300 num_target_ports * num_target_port_groups; 7301 7302 alloc_len = scsi_4btoul(cdb->length); 7303 7304 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7305 7306 ctsio->kern_sg_entries = 0; 7307 7308 if (total_len < alloc_len) { 7309 ctsio->residual = alloc_len - total_len; 7310 ctsio->kern_data_len = total_len; 7311 ctsio->kern_total_len = total_len; 7312 } else { 7313 ctsio->residual = 0; 7314 ctsio->kern_data_len = alloc_len; 7315 ctsio->kern_total_len = alloc_len; 7316 } 7317 ctsio->kern_data_resid = 0; 7318 ctsio->kern_rel_offset = 0; 7319 7320 if (ext) { 7321 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7322 ctsio->kern_data_ptr; 7323 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7324 rtg_ext_ptr->format_type = 0x10; 7325 rtg_ext_ptr->implicit_transition_time = 0; 7326 tpg_desc = &rtg_ext_ptr->groups[0]; 7327 } else { 7328 rtg_ptr = (struct scsi_target_group_data *) 7329 ctsio->kern_data_ptr; 7330 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7331 tpg_desc = &rtg_ptr->groups[0]; 7332 } 7333 7334 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7335 mtx_lock(&softc->ctl_lock); 7336 for (g = 0; g < num_target_port_groups; g++) { 7337 if (g == pg) 7338 tpg_desc->pref_state = TPG_PRIMARY | 7339 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7340 else 7341 tpg_desc->pref_state = 7342 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7343 tpg_desc->support = TPG_AO_SUP; 7344 if (!single) 7345 tpg_desc->support |= TPG_AN_SUP; 7346 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7347 tpg_desc->status = TPG_IMPLICIT; 7348 pc = 0; 7349 STAILQ_FOREACH(port, &softc->port_list, links) { 7350 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7351 continue; 7352 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7353 CTL_MAX_LUNS) 7354 continue; 7355 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7356 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7357 relative_target_port_identifier); 7358 pc++; 7359 } 7360 tpg_desc->target_port_count = pc; 7361 tpg_desc = (struct scsi_target_port_group_descriptor *) 7362 &tpg_desc->descriptors[pc]; 7363 } 7364 mtx_unlock(&softc->ctl_lock); 7365 7366 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7367 ctsio->be_move_done = ctl_config_move_done; 7368 7369 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7370 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7371 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7372 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7373 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7374 7375 ctl_datamove((union ctl_io *)ctsio); 7376 return(retval); 7377} 7378 7379int 7380ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7381{ 7382 struct ctl_lun *lun; 7383 struct scsi_report_supported_opcodes *cdb; 7384 const struct ctl_cmd_entry *entry, *sentry; 7385 struct scsi_report_supported_opcodes_all *all; 7386 struct scsi_report_supported_opcodes_descr *descr; 7387 struct scsi_report_supported_opcodes_one *one; 7388 int retval; 7389 int alloc_len, total_len; 7390 int opcode, service_action, i, j, num; 7391 7392 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7393 7394 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7395 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7396 7397 retval = CTL_RETVAL_COMPLETE; 7398 7399 opcode = cdb->requested_opcode; 7400 service_action = scsi_2btoul(cdb->requested_service_action); 7401 switch (cdb->options & RSO_OPTIONS_MASK) { 7402 case RSO_OPTIONS_ALL: 7403 num = 0; 7404 for (i = 0; i < 256; i++) { 7405 entry = &ctl_cmd_table[i]; 7406 if (entry->flags & CTL_CMD_FLAG_SA5) { 7407 for (j = 0; j < 32; j++) { 7408 sentry = &((const struct ctl_cmd_entry *) 7409 entry->execute)[j]; 7410 if (ctl_cmd_applicable( 7411 lun->be_lun->lun_type, sentry)) 7412 num++; 7413 } 7414 } else { 7415 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7416 entry)) 7417 num++; 7418 } 7419 } 7420 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7421 num * sizeof(struct scsi_report_supported_opcodes_descr); 7422 break; 7423 case RSO_OPTIONS_OC: 7424 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7425 ctl_set_invalid_field(/*ctsio*/ ctsio, 7426 /*sks_valid*/ 1, 7427 /*command*/ 1, 7428 /*field*/ 2, 7429 /*bit_valid*/ 1, 7430 /*bit*/ 2); 7431 ctl_done((union ctl_io *)ctsio); 7432 return (CTL_RETVAL_COMPLETE); 7433 } 7434 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7435 break; 7436 case RSO_OPTIONS_OC_SA: 7437 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7438 service_action >= 32) { 7439 ctl_set_invalid_field(/*ctsio*/ ctsio, 7440 /*sks_valid*/ 1, 7441 /*command*/ 1, 7442 /*field*/ 2, 7443 /*bit_valid*/ 1, 7444 /*bit*/ 2); 7445 ctl_done((union ctl_io *)ctsio); 7446 return (CTL_RETVAL_COMPLETE); 7447 } 7448 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7449 break; 7450 default: 7451 ctl_set_invalid_field(/*ctsio*/ ctsio, 7452 /*sks_valid*/ 1, 7453 /*command*/ 1, 7454 /*field*/ 2, 7455 /*bit_valid*/ 1, 7456 /*bit*/ 2); 7457 ctl_done((union ctl_io *)ctsio); 7458 return (CTL_RETVAL_COMPLETE); 7459 } 7460 7461 alloc_len = scsi_4btoul(cdb->length); 7462 7463 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7464 7465 ctsio->kern_sg_entries = 0; 7466 7467 if (total_len < alloc_len) { 7468 ctsio->residual = alloc_len - total_len; 7469 ctsio->kern_data_len = total_len; 7470 ctsio->kern_total_len = total_len; 7471 } else { 7472 ctsio->residual = 0; 7473 ctsio->kern_data_len = alloc_len; 7474 ctsio->kern_total_len = alloc_len; 7475 } 7476 ctsio->kern_data_resid = 0; 7477 ctsio->kern_rel_offset = 0; 7478 7479 switch (cdb->options & RSO_OPTIONS_MASK) { 7480 case RSO_OPTIONS_ALL: 7481 all = (struct scsi_report_supported_opcodes_all *) 7482 ctsio->kern_data_ptr; 7483 num = 0; 7484 for (i = 0; i < 256; i++) { 7485 entry = &ctl_cmd_table[i]; 7486 if (entry->flags & CTL_CMD_FLAG_SA5) { 7487 for (j = 0; j < 32; j++) { 7488 sentry = &((const struct ctl_cmd_entry *) 7489 entry->execute)[j]; 7490 if (!ctl_cmd_applicable( 7491 lun->be_lun->lun_type, sentry)) 7492 continue; 7493 descr = &all->descr[num++]; 7494 descr->opcode = i; 7495 scsi_ulto2b(j, descr->service_action); 7496 descr->flags = RSO_SERVACTV; 7497 scsi_ulto2b(sentry->length, 7498 descr->cdb_length); 7499 } 7500 } else { 7501 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7502 entry)) 7503 continue; 7504 descr = &all->descr[num++]; 7505 descr->opcode = i; 7506 scsi_ulto2b(0, descr->service_action); 7507 descr->flags = 0; 7508 scsi_ulto2b(entry->length, descr->cdb_length); 7509 } 7510 } 7511 scsi_ulto4b( 7512 num * sizeof(struct scsi_report_supported_opcodes_descr), 7513 all->length); 7514 break; 7515 case RSO_OPTIONS_OC: 7516 one = (struct scsi_report_supported_opcodes_one *) 7517 ctsio->kern_data_ptr; 7518 entry = &ctl_cmd_table[opcode]; 7519 goto fill_one; 7520 case RSO_OPTIONS_OC_SA: 7521 one = (struct scsi_report_supported_opcodes_one *) 7522 ctsio->kern_data_ptr; 7523 entry = &ctl_cmd_table[opcode]; 7524 entry = &((const struct ctl_cmd_entry *) 7525 entry->execute)[service_action]; 7526fill_one: 7527 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7528 one->support = 3; 7529 scsi_ulto2b(entry->length, one->cdb_length); 7530 one->cdb_usage[0] = opcode; 7531 memcpy(&one->cdb_usage[1], entry->usage, 7532 entry->length - 1); 7533 } else 7534 one->support = 1; 7535 break; 7536 } 7537 7538 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7539 ctsio->be_move_done = ctl_config_move_done; 7540 7541 ctl_datamove((union ctl_io *)ctsio); 7542 return(retval); 7543} 7544 7545int 7546ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7547{ 7548 struct ctl_lun *lun; 7549 struct scsi_report_supported_tmf *cdb; 7550 struct scsi_report_supported_tmf_data *data; 7551 int retval; 7552 int alloc_len, total_len; 7553 7554 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7555 7556 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7557 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7558 7559 retval = CTL_RETVAL_COMPLETE; 7560 7561 total_len = sizeof(struct scsi_report_supported_tmf_data); 7562 alloc_len = scsi_4btoul(cdb->length); 7563 7564 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7565 7566 ctsio->kern_sg_entries = 0; 7567 7568 if (total_len < alloc_len) { 7569 ctsio->residual = alloc_len - total_len; 7570 ctsio->kern_data_len = total_len; 7571 ctsio->kern_total_len = total_len; 7572 } else { 7573 ctsio->residual = 0; 7574 ctsio->kern_data_len = alloc_len; 7575 ctsio->kern_total_len = alloc_len; 7576 } 7577 ctsio->kern_data_resid = 0; 7578 ctsio->kern_rel_offset = 0; 7579 7580 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7581 data->byte1 |= RST_ATS | RST_ATSS | RST_LURS | RST_TRS; 7582 data->byte2 |= RST_ITNRS; 7583 7584 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7585 ctsio->be_move_done = ctl_config_move_done; 7586 7587 ctl_datamove((union ctl_io *)ctsio); 7588 return (retval); 7589} 7590 7591int 7592ctl_report_timestamp(struct ctl_scsiio *ctsio) 7593{ 7594 struct ctl_lun *lun; 7595 struct scsi_report_timestamp *cdb; 7596 struct scsi_report_timestamp_data *data; 7597 struct timeval tv; 7598 int64_t timestamp; 7599 int retval; 7600 int alloc_len, total_len; 7601 7602 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7603 7604 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7605 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7606 7607 retval = CTL_RETVAL_COMPLETE; 7608 7609 total_len = sizeof(struct scsi_report_timestamp_data); 7610 alloc_len = scsi_4btoul(cdb->length); 7611 7612 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7613 7614 ctsio->kern_sg_entries = 0; 7615 7616 if (total_len < alloc_len) { 7617 ctsio->residual = alloc_len - total_len; 7618 ctsio->kern_data_len = total_len; 7619 ctsio->kern_total_len = total_len; 7620 } else { 7621 ctsio->residual = 0; 7622 ctsio->kern_data_len = alloc_len; 7623 ctsio->kern_total_len = alloc_len; 7624 } 7625 ctsio->kern_data_resid = 0; 7626 ctsio->kern_rel_offset = 0; 7627 7628 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7629 scsi_ulto2b(sizeof(*data) - 2, data->length); 7630 data->origin = RTS_ORIG_OUTSIDE; 7631 getmicrotime(&tv); 7632 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7633 scsi_ulto4b(timestamp >> 16, data->timestamp); 7634 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7635 7636 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7637 ctsio->be_move_done = ctl_config_move_done; 7638 7639 ctl_datamove((union ctl_io *)ctsio); 7640 return (retval); 7641} 7642 7643int 7644ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7645{ 7646 struct scsi_per_res_in *cdb; 7647 int alloc_len, total_len = 0; 7648 /* struct scsi_per_res_in_rsrv in_data; */ 7649 struct ctl_lun *lun; 7650 struct ctl_softc *softc; 7651 7652 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7653 7654 softc = control_softc; 7655 7656 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7657 7658 alloc_len = scsi_2btoul(cdb->length); 7659 7660 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7661 7662retry: 7663 mtx_lock(&lun->lun_lock); 7664 switch (cdb->action) { 7665 case SPRI_RK: /* read keys */ 7666 total_len = sizeof(struct scsi_per_res_in_keys) + 7667 lun->pr_key_count * 7668 sizeof(struct scsi_per_res_key); 7669 break; 7670 case SPRI_RR: /* read reservation */ 7671 if (lun->flags & CTL_LUN_PR_RESERVED) 7672 total_len = sizeof(struct scsi_per_res_in_rsrv); 7673 else 7674 total_len = sizeof(struct scsi_per_res_in_header); 7675 break; 7676 case SPRI_RC: /* report capabilities */ 7677 total_len = sizeof(struct scsi_per_res_cap); 7678 break; 7679 case SPRI_RS: /* read full status */ 7680 total_len = sizeof(struct scsi_per_res_in_header) + 7681 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7682 lun->pr_key_count; 7683 break; 7684 default: 7685 panic("Invalid PR type %x", cdb->action); 7686 } 7687 mtx_unlock(&lun->lun_lock); 7688 7689 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7690 7691 if (total_len < alloc_len) { 7692 ctsio->residual = alloc_len - total_len; 7693 ctsio->kern_data_len = total_len; 7694 ctsio->kern_total_len = total_len; 7695 } else { 7696 ctsio->residual = 0; 7697 ctsio->kern_data_len = alloc_len; 7698 ctsio->kern_total_len = alloc_len; 7699 } 7700 7701 ctsio->kern_data_resid = 0; 7702 ctsio->kern_rel_offset = 0; 7703 ctsio->kern_sg_entries = 0; 7704 7705 mtx_lock(&lun->lun_lock); 7706 switch (cdb->action) { 7707 case SPRI_RK: { // read keys 7708 struct scsi_per_res_in_keys *res_keys; 7709 int i, key_count; 7710 7711 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7712 7713 /* 7714 * We had to drop the lock to allocate our buffer, which 7715 * leaves time for someone to come in with another 7716 * persistent reservation. (That is unlikely, though, 7717 * since this should be the only persistent reservation 7718 * command active right now.) 7719 */ 7720 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7721 (lun->pr_key_count * 7722 sizeof(struct scsi_per_res_key)))){ 7723 mtx_unlock(&lun->lun_lock); 7724 free(ctsio->kern_data_ptr, M_CTL); 7725 printf("%s: reservation length changed, retrying\n", 7726 __func__); 7727 goto retry; 7728 } 7729 7730 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7731 7732 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7733 lun->pr_key_count, res_keys->header.length); 7734 7735 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7736 if (!lun->per_res[i].registered) 7737 continue; 7738 7739 /* 7740 * We used lun->pr_key_count to calculate the 7741 * size to allocate. If it turns out the number of 7742 * initiators with the registered flag set is 7743 * larger than that (i.e. they haven't been kept in 7744 * sync), we've got a problem. 7745 */ 7746 if (key_count >= lun->pr_key_count) { 7747#ifdef NEEDTOPORT 7748 csevent_log(CSC_CTL | CSC_SHELF_SW | 7749 CTL_PR_ERROR, 7750 csevent_LogType_Fault, 7751 csevent_AlertLevel_Yellow, 7752 csevent_FRU_ShelfController, 7753 csevent_FRU_Firmware, 7754 csevent_FRU_Unknown, 7755 "registered keys %d >= key " 7756 "count %d", key_count, 7757 lun->pr_key_count); 7758#endif 7759 key_count++; 7760 continue; 7761 } 7762 memcpy(res_keys->keys[key_count].key, 7763 lun->per_res[i].res_key.key, 7764 ctl_min(sizeof(res_keys->keys[key_count].key), 7765 sizeof(lun->per_res[i].res_key))); 7766 key_count++; 7767 } 7768 break; 7769 } 7770 case SPRI_RR: { // read reservation 7771 struct scsi_per_res_in_rsrv *res; 7772 int tmp_len, header_only; 7773 7774 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7775 7776 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7777 7778 if (lun->flags & CTL_LUN_PR_RESERVED) 7779 { 7780 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7781 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7782 res->header.length); 7783 header_only = 0; 7784 } else { 7785 tmp_len = sizeof(struct scsi_per_res_in_header); 7786 scsi_ulto4b(0, res->header.length); 7787 header_only = 1; 7788 } 7789 7790 /* 7791 * We had to drop the lock to allocate our buffer, which 7792 * leaves time for someone to come in with another 7793 * persistent reservation. (That is unlikely, though, 7794 * since this should be the only persistent reservation 7795 * command active right now.) 7796 */ 7797 if (tmp_len != total_len) { 7798 mtx_unlock(&lun->lun_lock); 7799 free(ctsio->kern_data_ptr, M_CTL); 7800 printf("%s: reservation status changed, retrying\n", 7801 __func__); 7802 goto retry; 7803 } 7804 7805 /* 7806 * No reservation held, so we're done. 7807 */ 7808 if (header_only != 0) 7809 break; 7810 7811 /* 7812 * If the registration is an All Registrants type, the key 7813 * is 0, since it doesn't really matter. 7814 */ 7815 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7816 memcpy(res->data.reservation, 7817 &lun->per_res[lun->pr_res_idx].res_key, 7818 sizeof(struct scsi_per_res_key)); 7819 } 7820 res->data.scopetype = lun->res_type; 7821 break; 7822 } 7823 case SPRI_RC: //report capabilities 7824 { 7825 struct scsi_per_res_cap *res_cap; 7826 uint16_t type_mask; 7827 7828 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7829 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7830 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7831 type_mask = SPRI_TM_WR_EX_AR | 7832 SPRI_TM_EX_AC_RO | 7833 SPRI_TM_WR_EX_RO | 7834 SPRI_TM_EX_AC | 7835 SPRI_TM_WR_EX | 7836 SPRI_TM_EX_AC_AR; 7837 scsi_ulto2b(type_mask, res_cap->type_mask); 7838 break; 7839 } 7840 case SPRI_RS: { // read full status 7841 struct scsi_per_res_in_full *res_status; 7842 struct scsi_per_res_in_full_desc *res_desc; 7843 struct ctl_port *port; 7844 int i, len; 7845 7846 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7847 7848 /* 7849 * We had to drop the lock to allocate our buffer, which 7850 * leaves time for someone to come in with another 7851 * persistent reservation. (That is unlikely, though, 7852 * since this should be the only persistent reservation 7853 * command active right now.) 7854 */ 7855 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7856 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7857 lun->pr_key_count)){ 7858 mtx_unlock(&lun->lun_lock); 7859 free(ctsio->kern_data_ptr, M_CTL); 7860 printf("%s: reservation length changed, retrying\n", 7861 __func__); 7862 goto retry; 7863 } 7864 7865 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7866 7867 res_desc = &res_status->desc[0]; 7868 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7869 if (!lun->per_res[i].registered) 7870 continue; 7871 7872 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7873 sizeof(res_desc->res_key)); 7874 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7875 (lun->pr_res_idx == i || 7876 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7877 res_desc->flags = SPRI_FULL_R_HOLDER; 7878 res_desc->scopetype = lun->res_type; 7879 } 7880 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7881 res_desc->rel_trgt_port_id); 7882 len = 0; 7883 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7884 if (port != NULL) 7885 len = ctl_create_iid(port, 7886 i % CTL_MAX_INIT_PER_PORT, 7887 res_desc->transport_id); 7888 scsi_ulto4b(len, res_desc->additional_length); 7889 res_desc = (struct scsi_per_res_in_full_desc *) 7890 &res_desc->transport_id[len]; 7891 } 7892 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7893 res_status->header.length); 7894 break; 7895 } 7896 default: 7897 /* 7898 * This is a bug, because we just checked for this above, 7899 * and should have returned an error. 7900 */ 7901 panic("Invalid PR type %x", cdb->action); 7902 break; /* NOTREACHED */ 7903 } 7904 mtx_unlock(&lun->lun_lock); 7905 7906 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7907 ctsio->be_move_done = ctl_config_move_done; 7908 7909 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7910 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7911 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7912 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7913 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7914 7915 ctl_datamove((union ctl_io *)ctsio); 7916 7917 return (CTL_RETVAL_COMPLETE); 7918} 7919 7920/* 7921 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7922 * it should return. 7923 */ 7924static int 7925ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7926 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7927 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7928 struct scsi_per_res_out_parms* param) 7929{ 7930 union ctl_ha_msg persis_io; 7931 int retval, i; 7932 int isc_retval; 7933 7934 retval = 0; 7935 7936 mtx_lock(&lun->lun_lock); 7937 if (sa_res_key == 0) { 7938 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7939 /* validate scope and type */ 7940 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7941 SPR_LU_SCOPE) { 7942 mtx_unlock(&lun->lun_lock); 7943 ctl_set_invalid_field(/*ctsio*/ ctsio, 7944 /*sks_valid*/ 1, 7945 /*command*/ 1, 7946 /*field*/ 2, 7947 /*bit_valid*/ 1, 7948 /*bit*/ 4); 7949 ctl_done((union ctl_io *)ctsio); 7950 return (1); 7951 } 7952 7953 if (type>8 || type==2 || type==4 || type==0) { 7954 mtx_unlock(&lun->lun_lock); 7955 ctl_set_invalid_field(/*ctsio*/ ctsio, 7956 /*sks_valid*/ 1, 7957 /*command*/ 1, 7958 /*field*/ 2, 7959 /*bit_valid*/ 1, 7960 /*bit*/ 0); 7961 ctl_done((union ctl_io *)ctsio); 7962 return (1); 7963 } 7964 7965 /* temporarily unregister this nexus */ 7966 lun->per_res[residx].registered = 0; 7967 7968 /* 7969 * Unregister everybody else and build UA for 7970 * them 7971 */ 7972 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7973 if (lun->per_res[i].registered == 0) 7974 continue; 7975 7976 if (!persis_offset 7977 && i <CTL_MAX_INITIATORS) 7978 lun->pending_sense[i].ua_pending |= 7979 CTL_UA_REG_PREEMPT; 7980 else if (persis_offset 7981 && i >= persis_offset) 7982 lun->pending_sense[i-persis_offset 7983 ].ua_pending |= 7984 CTL_UA_REG_PREEMPT; 7985 lun->per_res[i].registered = 0; 7986 memset(&lun->per_res[i].res_key, 0, 7987 sizeof(struct scsi_per_res_key)); 7988 } 7989 lun->per_res[residx].registered = 1; 7990 lun->pr_key_count = 1; 7991 lun->res_type = type; 7992 if (lun->res_type != SPR_TYPE_WR_EX_AR 7993 && lun->res_type != SPR_TYPE_EX_AC_AR) 7994 lun->pr_res_idx = residx; 7995 7996 /* send msg to other side */ 7997 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7998 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7999 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8000 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8001 persis_io.pr.pr_info.res_type = type; 8002 memcpy(persis_io.pr.pr_info.sa_res_key, 8003 param->serv_act_res_key, 8004 sizeof(param->serv_act_res_key)); 8005 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8006 &persis_io, sizeof(persis_io), 0)) > 8007 CTL_HA_STATUS_SUCCESS) { 8008 printf("CTL:Persis Out error returned " 8009 "from ctl_ha_msg_send %d\n", 8010 isc_retval); 8011 } 8012 } else { 8013 /* not all registrants */ 8014 mtx_unlock(&lun->lun_lock); 8015 free(ctsio->kern_data_ptr, M_CTL); 8016 ctl_set_invalid_field(ctsio, 8017 /*sks_valid*/ 1, 8018 /*command*/ 0, 8019 /*field*/ 8, 8020 /*bit_valid*/ 0, 8021 /*bit*/ 0); 8022 ctl_done((union ctl_io *)ctsio); 8023 return (1); 8024 } 8025 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8026 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8027 int found = 0; 8028 8029 if (res_key == sa_res_key) { 8030 /* special case */ 8031 /* 8032 * The spec implies this is not good but doesn't 8033 * say what to do. There are two choices either 8034 * generate a res conflict or check condition 8035 * with illegal field in parameter data. Since 8036 * that is what is done when the sa_res_key is 8037 * zero I'll take that approach since this has 8038 * to do with the sa_res_key. 8039 */ 8040 mtx_unlock(&lun->lun_lock); 8041 free(ctsio->kern_data_ptr, M_CTL); 8042 ctl_set_invalid_field(ctsio, 8043 /*sks_valid*/ 1, 8044 /*command*/ 0, 8045 /*field*/ 8, 8046 /*bit_valid*/ 0, 8047 /*bit*/ 0); 8048 ctl_done((union ctl_io *)ctsio); 8049 return (1); 8050 } 8051 8052 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8053 if (lun->per_res[i].registered 8054 && memcmp(param->serv_act_res_key, 8055 lun->per_res[i].res_key.key, 8056 sizeof(struct scsi_per_res_key)) != 0) 8057 continue; 8058 8059 found = 1; 8060 lun->per_res[i].registered = 0; 8061 memset(&lun->per_res[i].res_key, 0, 8062 sizeof(struct scsi_per_res_key)); 8063 lun->pr_key_count--; 8064 8065 if (!persis_offset 8066 && i < CTL_MAX_INITIATORS) 8067 lun->pending_sense[i].ua_pending |= 8068 CTL_UA_REG_PREEMPT; 8069 else if (persis_offset 8070 && i >= persis_offset) 8071 lun->pending_sense[i-persis_offset].ua_pending|= 8072 CTL_UA_REG_PREEMPT; 8073 } 8074 if (!found) { 8075 mtx_unlock(&lun->lun_lock); 8076 free(ctsio->kern_data_ptr, M_CTL); 8077 ctl_set_reservation_conflict(ctsio); 8078 ctl_done((union ctl_io *)ctsio); 8079 return (CTL_RETVAL_COMPLETE); 8080 } 8081 /* send msg to other side */ 8082 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8083 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8084 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8085 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8086 persis_io.pr.pr_info.res_type = type; 8087 memcpy(persis_io.pr.pr_info.sa_res_key, 8088 param->serv_act_res_key, 8089 sizeof(param->serv_act_res_key)); 8090 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8091 &persis_io, sizeof(persis_io), 0)) > 8092 CTL_HA_STATUS_SUCCESS) { 8093 printf("CTL:Persis Out error returned from " 8094 "ctl_ha_msg_send %d\n", isc_retval); 8095 } 8096 } else { 8097 /* Reserved but not all registrants */ 8098 /* sa_res_key is res holder */ 8099 if (memcmp(param->serv_act_res_key, 8100 lun->per_res[lun->pr_res_idx].res_key.key, 8101 sizeof(struct scsi_per_res_key)) == 0) { 8102 /* validate scope and type */ 8103 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8104 SPR_LU_SCOPE) { 8105 mtx_unlock(&lun->lun_lock); 8106 ctl_set_invalid_field(/*ctsio*/ ctsio, 8107 /*sks_valid*/ 1, 8108 /*command*/ 1, 8109 /*field*/ 2, 8110 /*bit_valid*/ 1, 8111 /*bit*/ 4); 8112 ctl_done((union ctl_io *)ctsio); 8113 return (1); 8114 } 8115 8116 if (type>8 || type==2 || type==4 || type==0) { 8117 mtx_unlock(&lun->lun_lock); 8118 ctl_set_invalid_field(/*ctsio*/ ctsio, 8119 /*sks_valid*/ 1, 8120 /*command*/ 1, 8121 /*field*/ 2, 8122 /*bit_valid*/ 1, 8123 /*bit*/ 0); 8124 ctl_done((union ctl_io *)ctsio); 8125 return (1); 8126 } 8127 8128 /* 8129 * Do the following: 8130 * if sa_res_key != res_key remove all 8131 * registrants w/sa_res_key and generate UA 8132 * for these registrants(Registrations 8133 * Preempted) if it wasn't an exclusive 8134 * reservation generate UA(Reservations 8135 * Preempted) for all other registered nexuses 8136 * if the type has changed. Establish the new 8137 * reservation and holder. If res_key and 8138 * sa_res_key are the same do the above 8139 * except don't unregister the res holder. 8140 */ 8141 8142 /* 8143 * Temporarily unregister so it won't get 8144 * removed or UA generated 8145 */ 8146 lun->per_res[residx].registered = 0; 8147 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8148 if (lun->per_res[i].registered == 0) 8149 continue; 8150 8151 if (memcmp(param->serv_act_res_key, 8152 lun->per_res[i].res_key.key, 8153 sizeof(struct scsi_per_res_key)) == 0) { 8154 lun->per_res[i].registered = 0; 8155 memset(&lun->per_res[i].res_key, 8156 0, 8157 sizeof(struct scsi_per_res_key)); 8158 lun->pr_key_count--; 8159 8160 if (!persis_offset 8161 && i < CTL_MAX_INITIATORS) 8162 lun->pending_sense[i 8163 ].ua_pending |= 8164 CTL_UA_REG_PREEMPT; 8165 else if (persis_offset 8166 && i >= persis_offset) 8167 lun->pending_sense[ 8168 i-persis_offset].ua_pending |= 8169 CTL_UA_REG_PREEMPT; 8170 } else if (type != lun->res_type 8171 && (lun->res_type == SPR_TYPE_WR_EX_RO 8172 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8173 if (!persis_offset 8174 && i < CTL_MAX_INITIATORS) 8175 lun->pending_sense[i 8176 ].ua_pending |= 8177 CTL_UA_RES_RELEASE; 8178 else if (persis_offset 8179 && i >= persis_offset) 8180 lun->pending_sense[ 8181 i-persis_offset 8182 ].ua_pending |= 8183 CTL_UA_RES_RELEASE; 8184 } 8185 } 8186 lun->per_res[residx].registered = 1; 8187 lun->res_type = type; 8188 if (lun->res_type != SPR_TYPE_WR_EX_AR 8189 && lun->res_type != SPR_TYPE_EX_AC_AR) 8190 lun->pr_res_idx = residx; 8191 else 8192 lun->pr_res_idx = 8193 CTL_PR_ALL_REGISTRANTS; 8194 8195 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8196 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8197 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8198 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8199 persis_io.pr.pr_info.res_type = type; 8200 memcpy(persis_io.pr.pr_info.sa_res_key, 8201 param->serv_act_res_key, 8202 sizeof(param->serv_act_res_key)); 8203 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8204 &persis_io, sizeof(persis_io), 0)) > 8205 CTL_HA_STATUS_SUCCESS) { 8206 printf("CTL:Persis Out error returned " 8207 "from ctl_ha_msg_send %d\n", 8208 isc_retval); 8209 } 8210 } else { 8211 /* 8212 * sa_res_key is not the res holder just 8213 * remove registrants 8214 */ 8215 int found=0; 8216 8217 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8218 if (memcmp(param->serv_act_res_key, 8219 lun->per_res[i].res_key.key, 8220 sizeof(struct scsi_per_res_key)) != 0) 8221 continue; 8222 8223 found = 1; 8224 lun->per_res[i].registered = 0; 8225 memset(&lun->per_res[i].res_key, 0, 8226 sizeof(struct scsi_per_res_key)); 8227 lun->pr_key_count--; 8228 8229 if (!persis_offset 8230 && i < CTL_MAX_INITIATORS) 8231 lun->pending_sense[i].ua_pending |= 8232 CTL_UA_REG_PREEMPT; 8233 else if (persis_offset 8234 && i >= persis_offset) 8235 lun->pending_sense[ 8236 i-persis_offset].ua_pending |= 8237 CTL_UA_REG_PREEMPT; 8238 } 8239 8240 if (!found) { 8241 mtx_unlock(&lun->lun_lock); 8242 free(ctsio->kern_data_ptr, M_CTL); 8243 ctl_set_reservation_conflict(ctsio); 8244 ctl_done((union ctl_io *)ctsio); 8245 return (1); 8246 } 8247 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8248 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8249 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8250 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8251 persis_io.pr.pr_info.res_type = type; 8252 memcpy(persis_io.pr.pr_info.sa_res_key, 8253 param->serv_act_res_key, 8254 sizeof(param->serv_act_res_key)); 8255 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8256 &persis_io, sizeof(persis_io), 0)) > 8257 CTL_HA_STATUS_SUCCESS) { 8258 printf("CTL:Persis Out error returned " 8259 "from ctl_ha_msg_send %d\n", 8260 isc_retval); 8261 } 8262 } 8263 } 8264 8265 lun->PRGeneration++; 8266 mtx_unlock(&lun->lun_lock); 8267 8268 return (retval); 8269} 8270 8271static void 8272ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8273{ 8274 int i; 8275 8276 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8277 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8278 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8279 msg->pr.pr_info.sa_res_key, 8280 sizeof(struct scsi_per_res_key)) != 0) { 8281 uint64_t sa_res_key; 8282 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8283 8284 if (sa_res_key == 0) { 8285 /* temporarily unregister this nexus */ 8286 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8287 8288 /* 8289 * Unregister everybody else and build UA for 8290 * them 8291 */ 8292 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8293 if (lun->per_res[i].registered == 0) 8294 continue; 8295 8296 if (!persis_offset 8297 && i < CTL_MAX_INITIATORS) 8298 lun->pending_sense[i].ua_pending |= 8299 CTL_UA_REG_PREEMPT; 8300 else if (persis_offset && i >= persis_offset) 8301 lun->pending_sense[i - 8302 persis_offset].ua_pending |= 8303 CTL_UA_REG_PREEMPT; 8304 lun->per_res[i].registered = 0; 8305 memset(&lun->per_res[i].res_key, 0, 8306 sizeof(struct scsi_per_res_key)); 8307 } 8308 8309 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8310 lun->pr_key_count = 1; 8311 lun->res_type = msg->pr.pr_info.res_type; 8312 if (lun->res_type != SPR_TYPE_WR_EX_AR 8313 && lun->res_type != SPR_TYPE_EX_AC_AR) 8314 lun->pr_res_idx = msg->pr.pr_info.residx; 8315 } else { 8316 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8317 if (memcmp(msg->pr.pr_info.sa_res_key, 8318 lun->per_res[i].res_key.key, 8319 sizeof(struct scsi_per_res_key)) != 0) 8320 continue; 8321 8322 lun->per_res[i].registered = 0; 8323 memset(&lun->per_res[i].res_key, 0, 8324 sizeof(struct scsi_per_res_key)); 8325 lun->pr_key_count--; 8326 8327 if (!persis_offset 8328 && i < persis_offset) 8329 lun->pending_sense[i].ua_pending |= 8330 CTL_UA_REG_PREEMPT; 8331 else if (persis_offset 8332 && i >= persis_offset) 8333 lun->pending_sense[i - 8334 persis_offset].ua_pending |= 8335 CTL_UA_REG_PREEMPT; 8336 } 8337 } 8338 } else { 8339 /* 8340 * Temporarily unregister so it won't get removed 8341 * or UA generated 8342 */ 8343 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8344 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8345 if (lun->per_res[i].registered == 0) 8346 continue; 8347 8348 if (memcmp(msg->pr.pr_info.sa_res_key, 8349 lun->per_res[i].res_key.key, 8350 sizeof(struct scsi_per_res_key)) == 0) { 8351 lun->per_res[i].registered = 0; 8352 memset(&lun->per_res[i].res_key, 0, 8353 sizeof(struct scsi_per_res_key)); 8354 lun->pr_key_count--; 8355 if (!persis_offset 8356 && i < CTL_MAX_INITIATORS) 8357 lun->pending_sense[i].ua_pending |= 8358 CTL_UA_REG_PREEMPT; 8359 else if (persis_offset 8360 && i >= persis_offset) 8361 lun->pending_sense[i - 8362 persis_offset].ua_pending |= 8363 CTL_UA_REG_PREEMPT; 8364 } else if (msg->pr.pr_info.res_type != lun->res_type 8365 && (lun->res_type == SPR_TYPE_WR_EX_RO 8366 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8367 if (!persis_offset 8368 && i < persis_offset) 8369 lun->pending_sense[i 8370 ].ua_pending |= 8371 CTL_UA_RES_RELEASE; 8372 else if (persis_offset 8373 && i >= persis_offset) 8374 lun->pending_sense[i - 8375 persis_offset].ua_pending |= 8376 CTL_UA_RES_RELEASE; 8377 } 8378 } 8379 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8380 lun->res_type = msg->pr.pr_info.res_type; 8381 if (lun->res_type != SPR_TYPE_WR_EX_AR 8382 && lun->res_type != SPR_TYPE_EX_AC_AR) 8383 lun->pr_res_idx = msg->pr.pr_info.residx; 8384 else 8385 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8386 } 8387 lun->PRGeneration++; 8388 8389} 8390 8391 8392int 8393ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8394{ 8395 int retval; 8396 int isc_retval; 8397 u_int32_t param_len; 8398 struct scsi_per_res_out *cdb; 8399 struct ctl_lun *lun; 8400 struct scsi_per_res_out_parms* param; 8401 struct ctl_softc *softc; 8402 uint32_t residx; 8403 uint64_t res_key, sa_res_key; 8404 uint8_t type; 8405 union ctl_ha_msg persis_io; 8406 int i; 8407 8408 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8409 8410 retval = CTL_RETVAL_COMPLETE; 8411 8412 softc = control_softc; 8413 8414 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8415 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8416 8417 /* 8418 * We only support whole-LUN scope. The scope & type are ignored for 8419 * register, register and ignore existing key and clear. 8420 * We sometimes ignore scope and type on preempts too!! 8421 * Verify reservation type here as well. 8422 */ 8423 type = cdb->scope_type & SPR_TYPE_MASK; 8424 if ((cdb->action == SPRO_RESERVE) 8425 || (cdb->action == SPRO_RELEASE)) { 8426 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8427 ctl_set_invalid_field(/*ctsio*/ ctsio, 8428 /*sks_valid*/ 1, 8429 /*command*/ 1, 8430 /*field*/ 2, 8431 /*bit_valid*/ 1, 8432 /*bit*/ 4); 8433 ctl_done((union ctl_io *)ctsio); 8434 return (CTL_RETVAL_COMPLETE); 8435 } 8436 8437 if (type>8 || type==2 || type==4 || type==0) { 8438 ctl_set_invalid_field(/*ctsio*/ ctsio, 8439 /*sks_valid*/ 1, 8440 /*command*/ 1, 8441 /*field*/ 2, 8442 /*bit_valid*/ 1, 8443 /*bit*/ 0); 8444 ctl_done((union ctl_io *)ctsio); 8445 return (CTL_RETVAL_COMPLETE); 8446 } 8447 } 8448 8449 param_len = scsi_4btoul(cdb->length); 8450 8451 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8452 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8453 ctsio->kern_data_len = param_len; 8454 ctsio->kern_total_len = param_len; 8455 ctsio->kern_data_resid = 0; 8456 ctsio->kern_rel_offset = 0; 8457 ctsio->kern_sg_entries = 0; 8458 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8459 ctsio->be_move_done = ctl_config_move_done; 8460 ctl_datamove((union ctl_io *)ctsio); 8461 8462 return (CTL_RETVAL_COMPLETE); 8463 } 8464 8465 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8466 8467 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8468 res_key = scsi_8btou64(param->res_key.key); 8469 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8470 8471 /* 8472 * Validate the reservation key here except for SPRO_REG_IGNO 8473 * This must be done for all other service actions 8474 */ 8475 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8476 mtx_lock(&lun->lun_lock); 8477 if (lun->per_res[residx].registered) { 8478 if (memcmp(param->res_key.key, 8479 lun->per_res[residx].res_key.key, 8480 ctl_min(sizeof(param->res_key), 8481 sizeof(lun->per_res[residx].res_key))) != 0) { 8482 /* 8483 * The current key passed in doesn't match 8484 * the one the initiator previously 8485 * registered. 8486 */ 8487 mtx_unlock(&lun->lun_lock); 8488 free(ctsio->kern_data_ptr, M_CTL); 8489 ctl_set_reservation_conflict(ctsio); 8490 ctl_done((union ctl_io *)ctsio); 8491 return (CTL_RETVAL_COMPLETE); 8492 } 8493 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8494 /* 8495 * We are not registered 8496 */ 8497 mtx_unlock(&lun->lun_lock); 8498 free(ctsio->kern_data_ptr, M_CTL); 8499 ctl_set_reservation_conflict(ctsio); 8500 ctl_done((union ctl_io *)ctsio); 8501 return (CTL_RETVAL_COMPLETE); 8502 } else if (res_key != 0) { 8503 /* 8504 * We are not registered and trying to register but 8505 * the register key isn't zero. 8506 */ 8507 mtx_unlock(&lun->lun_lock); 8508 free(ctsio->kern_data_ptr, M_CTL); 8509 ctl_set_reservation_conflict(ctsio); 8510 ctl_done((union ctl_io *)ctsio); 8511 return (CTL_RETVAL_COMPLETE); 8512 } 8513 mtx_unlock(&lun->lun_lock); 8514 } 8515 8516 switch (cdb->action & SPRO_ACTION_MASK) { 8517 case SPRO_REGISTER: 8518 case SPRO_REG_IGNO: { 8519 8520#if 0 8521 printf("Registration received\n"); 8522#endif 8523 8524 /* 8525 * We don't support any of these options, as we report in 8526 * the read capabilities request (see 8527 * ctl_persistent_reserve_in(), above). 8528 */ 8529 if ((param->flags & SPR_SPEC_I_PT) 8530 || (param->flags & SPR_ALL_TG_PT) 8531 || (param->flags & SPR_APTPL)) { 8532 int bit_ptr; 8533 8534 if (param->flags & SPR_APTPL) 8535 bit_ptr = 0; 8536 else if (param->flags & SPR_ALL_TG_PT) 8537 bit_ptr = 2; 8538 else /* SPR_SPEC_I_PT */ 8539 bit_ptr = 3; 8540 8541 free(ctsio->kern_data_ptr, M_CTL); 8542 ctl_set_invalid_field(ctsio, 8543 /*sks_valid*/ 1, 8544 /*command*/ 0, 8545 /*field*/ 20, 8546 /*bit_valid*/ 1, 8547 /*bit*/ bit_ptr); 8548 ctl_done((union ctl_io *)ctsio); 8549 return (CTL_RETVAL_COMPLETE); 8550 } 8551 8552 mtx_lock(&lun->lun_lock); 8553 8554 /* 8555 * The initiator wants to clear the 8556 * key/unregister. 8557 */ 8558 if (sa_res_key == 0) { 8559 if ((res_key == 0 8560 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8561 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8562 && !lun->per_res[residx].registered)) { 8563 mtx_unlock(&lun->lun_lock); 8564 goto done; 8565 } 8566 8567 lun->per_res[residx].registered = 0; 8568 memset(&lun->per_res[residx].res_key, 8569 0, sizeof(lun->per_res[residx].res_key)); 8570 lun->pr_key_count--; 8571 8572 if (residx == lun->pr_res_idx) { 8573 lun->flags &= ~CTL_LUN_PR_RESERVED; 8574 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8575 8576 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8577 || lun->res_type == SPR_TYPE_EX_AC_RO) 8578 && lun->pr_key_count) { 8579 /* 8580 * If the reservation is a registrants 8581 * only type we need to generate a UA 8582 * for other registered inits. The 8583 * sense code should be RESERVATIONS 8584 * RELEASED 8585 */ 8586 8587 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8588 if (lun->per_res[ 8589 i+persis_offset].registered 8590 == 0) 8591 continue; 8592 lun->pending_sense[i 8593 ].ua_pending |= 8594 CTL_UA_RES_RELEASE; 8595 } 8596 } 8597 lun->res_type = 0; 8598 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8599 if (lun->pr_key_count==0) { 8600 lun->flags &= ~CTL_LUN_PR_RESERVED; 8601 lun->res_type = 0; 8602 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8603 } 8604 } 8605 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8606 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8607 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8608 persis_io.pr.pr_info.residx = residx; 8609 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8610 &persis_io, sizeof(persis_io), 0 )) > 8611 CTL_HA_STATUS_SUCCESS) { 8612 printf("CTL:Persis Out error returned from " 8613 "ctl_ha_msg_send %d\n", isc_retval); 8614 } 8615 } else /* sa_res_key != 0 */ { 8616 8617 /* 8618 * If we aren't registered currently then increment 8619 * the key count and set the registered flag. 8620 */ 8621 if (!lun->per_res[residx].registered) { 8622 lun->pr_key_count++; 8623 lun->per_res[residx].registered = 1; 8624 } 8625 8626 memcpy(&lun->per_res[residx].res_key, 8627 param->serv_act_res_key, 8628 ctl_min(sizeof(param->serv_act_res_key), 8629 sizeof(lun->per_res[residx].res_key))); 8630 8631 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8632 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8633 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8634 persis_io.pr.pr_info.residx = residx; 8635 memcpy(persis_io.pr.pr_info.sa_res_key, 8636 param->serv_act_res_key, 8637 sizeof(param->serv_act_res_key)); 8638 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8639 &persis_io, sizeof(persis_io), 0)) > 8640 CTL_HA_STATUS_SUCCESS) { 8641 printf("CTL:Persis Out error returned from " 8642 "ctl_ha_msg_send %d\n", isc_retval); 8643 } 8644 } 8645 lun->PRGeneration++; 8646 mtx_unlock(&lun->lun_lock); 8647 8648 break; 8649 } 8650 case SPRO_RESERVE: 8651#if 0 8652 printf("Reserve executed type %d\n", type); 8653#endif 8654 mtx_lock(&lun->lun_lock); 8655 if (lun->flags & CTL_LUN_PR_RESERVED) { 8656 /* 8657 * if this isn't the reservation holder and it's 8658 * not a "all registrants" type or if the type is 8659 * different then we have a conflict 8660 */ 8661 if ((lun->pr_res_idx != residx 8662 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8663 || lun->res_type != type) { 8664 mtx_unlock(&lun->lun_lock); 8665 free(ctsio->kern_data_ptr, M_CTL); 8666 ctl_set_reservation_conflict(ctsio); 8667 ctl_done((union ctl_io *)ctsio); 8668 return (CTL_RETVAL_COMPLETE); 8669 } 8670 mtx_unlock(&lun->lun_lock); 8671 } else /* create a reservation */ { 8672 /* 8673 * If it's not an "all registrants" type record 8674 * reservation holder 8675 */ 8676 if (type != SPR_TYPE_WR_EX_AR 8677 && type != SPR_TYPE_EX_AC_AR) 8678 lun->pr_res_idx = residx; /* Res holder */ 8679 else 8680 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8681 8682 lun->flags |= CTL_LUN_PR_RESERVED; 8683 lun->res_type = type; 8684 8685 mtx_unlock(&lun->lun_lock); 8686 8687 /* send msg to other side */ 8688 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8689 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8690 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8691 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8692 persis_io.pr.pr_info.res_type = type; 8693 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8694 &persis_io, sizeof(persis_io), 0)) > 8695 CTL_HA_STATUS_SUCCESS) { 8696 printf("CTL:Persis Out error returned from " 8697 "ctl_ha_msg_send %d\n", isc_retval); 8698 } 8699 } 8700 break; 8701 8702 case SPRO_RELEASE: 8703 mtx_lock(&lun->lun_lock); 8704 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8705 /* No reservation exists return good status */ 8706 mtx_unlock(&lun->lun_lock); 8707 goto done; 8708 } 8709 /* 8710 * Is this nexus a reservation holder? 8711 */ 8712 if (lun->pr_res_idx != residx 8713 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8714 /* 8715 * not a res holder return good status but 8716 * do nothing 8717 */ 8718 mtx_unlock(&lun->lun_lock); 8719 goto done; 8720 } 8721 8722 if (lun->res_type != type) { 8723 mtx_unlock(&lun->lun_lock); 8724 free(ctsio->kern_data_ptr, M_CTL); 8725 ctl_set_illegal_pr_release(ctsio); 8726 ctl_done((union ctl_io *)ctsio); 8727 return (CTL_RETVAL_COMPLETE); 8728 } 8729 8730 /* okay to release */ 8731 lun->flags &= ~CTL_LUN_PR_RESERVED; 8732 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8733 lun->res_type = 0; 8734 8735 /* 8736 * if this isn't an exclusive access 8737 * res generate UA for all other 8738 * registrants. 8739 */ 8740 if (type != SPR_TYPE_EX_AC 8741 && type != SPR_TYPE_WR_EX) { 8742 /* 8743 * temporarily unregister so we don't generate UA 8744 */ 8745 lun->per_res[residx].registered = 0; 8746 8747 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8748 if (lun->per_res[i+persis_offset].registered 8749 == 0) 8750 continue; 8751 lun->pending_sense[i].ua_pending |= 8752 CTL_UA_RES_RELEASE; 8753 } 8754 8755 lun->per_res[residx].registered = 1; 8756 } 8757 mtx_unlock(&lun->lun_lock); 8758 /* Send msg to other side */ 8759 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8760 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8761 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8762 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8763 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8764 printf("CTL:Persis Out error returned from " 8765 "ctl_ha_msg_send %d\n", isc_retval); 8766 } 8767 break; 8768 8769 case SPRO_CLEAR: 8770 /* send msg to other side */ 8771 8772 mtx_lock(&lun->lun_lock); 8773 lun->flags &= ~CTL_LUN_PR_RESERVED; 8774 lun->res_type = 0; 8775 lun->pr_key_count = 0; 8776 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8777 8778 8779 memset(&lun->per_res[residx].res_key, 8780 0, sizeof(lun->per_res[residx].res_key)); 8781 lun->per_res[residx].registered = 0; 8782 8783 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8784 if (lun->per_res[i].registered) { 8785 if (!persis_offset && i < CTL_MAX_INITIATORS) 8786 lun->pending_sense[i].ua_pending |= 8787 CTL_UA_RES_PREEMPT; 8788 else if (persis_offset && i >= persis_offset) 8789 lun->pending_sense[i-persis_offset 8790 ].ua_pending |= CTL_UA_RES_PREEMPT; 8791 8792 memset(&lun->per_res[i].res_key, 8793 0, sizeof(struct scsi_per_res_key)); 8794 lun->per_res[i].registered = 0; 8795 } 8796 lun->PRGeneration++; 8797 mtx_unlock(&lun->lun_lock); 8798 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8799 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8800 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8801 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8802 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8803 printf("CTL:Persis Out error returned from " 8804 "ctl_ha_msg_send %d\n", isc_retval); 8805 } 8806 break; 8807 8808 case SPRO_PREEMPT: { 8809 int nretval; 8810 8811 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8812 residx, ctsio, cdb, param); 8813 if (nretval != 0) 8814 return (CTL_RETVAL_COMPLETE); 8815 break; 8816 } 8817 default: 8818 panic("Invalid PR type %x", cdb->action); 8819 } 8820 8821done: 8822 free(ctsio->kern_data_ptr, M_CTL); 8823 ctl_set_success(ctsio); 8824 ctl_done((union ctl_io *)ctsio); 8825 8826 return (retval); 8827} 8828 8829/* 8830 * This routine is for handling a message from the other SC pertaining to 8831 * persistent reserve out. All the error checking will have been done 8832 * so only perorming the action need be done here to keep the two 8833 * in sync. 8834 */ 8835static void 8836ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8837{ 8838 struct ctl_lun *lun; 8839 struct ctl_softc *softc; 8840 int i; 8841 uint32_t targ_lun; 8842 8843 softc = control_softc; 8844 8845 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8846 lun = softc->ctl_luns[targ_lun]; 8847 mtx_lock(&lun->lun_lock); 8848 switch(msg->pr.pr_info.action) { 8849 case CTL_PR_REG_KEY: 8850 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8851 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8852 lun->pr_key_count++; 8853 } 8854 lun->PRGeneration++; 8855 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8856 msg->pr.pr_info.sa_res_key, 8857 sizeof(struct scsi_per_res_key)); 8858 break; 8859 8860 case CTL_PR_UNREG_KEY: 8861 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8862 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8863 0, sizeof(struct scsi_per_res_key)); 8864 lun->pr_key_count--; 8865 8866 /* XXX Need to see if the reservation has been released */ 8867 /* if so do we need to generate UA? */ 8868 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8869 lun->flags &= ~CTL_LUN_PR_RESERVED; 8870 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8871 8872 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8873 || lun->res_type == SPR_TYPE_EX_AC_RO) 8874 && lun->pr_key_count) { 8875 /* 8876 * If the reservation is a registrants 8877 * only type we need to generate a UA 8878 * for other registered inits. The 8879 * sense code should be RESERVATIONS 8880 * RELEASED 8881 */ 8882 8883 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8884 if (lun->per_res[i+ 8885 persis_offset].registered == 0) 8886 continue; 8887 8888 lun->pending_sense[i 8889 ].ua_pending |= 8890 CTL_UA_RES_RELEASE; 8891 } 8892 } 8893 lun->res_type = 0; 8894 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8895 if (lun->pr_key_count==0) { 8896 lun->flags &= ~CTL_LUN_PR_RESERVED; 8897 lun->res_type = 0; 8898 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8899 } 8900 } 8901 lun->PRGeneration++; 8902 break; 8903 8904 case CTL_PR_RESERVE: 8905 lun->flags |= CTL_LUN_PR_RESERVED; 8906 lun->res_type = msg->pr.pr_info.res_type; 8907 lun->pr_res_idx = msg->pr.pr_info.residx; 8908 8909 break; 8910 8911 case CTL_PR_RELEASE: 8912 /* 8913 * if this isn't an exclusive access res generate UA for all 8914 * other registrants. 8915 */ 8916 if (lun->res_type != SPR_TYPE_EX_AC 8917 && lun->res_type != SPR_TYPE_WR_EX) { 8918 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8919 if (lun->per_res[i+persis_offset].registered) 8920 lun->pending_sense[i].ua_pending |= 8921 CTL_UA_RES_RELEASE; 8922 } 8923 8924 lun->flags &= ~CTL_LUN_PR_RESERVED; 8925 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8926 lun->res_type = 0; 8927 break; 8928 8929 case CTL_PR_PREEMPT: 8930 ctl_pro_preempt_other(lun, msg); 8931 break; 8932 case CTL_PR_CLEAR: 8933 lun->flags &= ~CTL_LUN_PR_RESERVED; 8934 lun->res_type = 0; 8935 lun->pr_key_count = 0; 8936 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8937 8938 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8939 if (lun->per_res[i].registered == 0) 8940 continue; 8941 if (!persis_offset 8942 && i < CTL_MAX_INITIATORS) 8943 lun->pending_sense[i].ua_pending |= 8944 CTL_UA_RES_PREEMPT; 8945 else if (persis_offset 8946 && i >= persis_offset) 8947 lun->pending_sense[i-persis_offset].ua_pending|= 8948 CTL_UA_RES_PREEMPT; 8949 memset(&lun->per_res[i].res_key, 0, 8950 sizeof(struct scsi_per_res_key)); 8951 lun->per_res[i].registered = 0; 8952 } 8953 lun->PRGeneration++; 8954 break; 8955 } 8956 8957 mtx_unlock(&lun->lun_lock); 8958} 8959 8960int 8961ctl_read_write(struct ctl_scsiio *ctsio) 8962{ 8963 struct ctl_lun *lun; 8964 struct ctl_lba_len_flags *lbalen; 8965 uint64_t lba; 8966 uint32_t num_blocks; 8967 int fua, dpo; 8968 int retval; 8969 int isread; 8970 8971 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8972 8973 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8974 8975 fua = 0; 8976 dpo = 0; 8977 8978 retval = CTL_RETVAL_COMPLETE; 8979 8980 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8981 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8982 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8983 uint32_t residx; 8984 8985 /* 8986 * XXX KDM need a lock here. 8987 */ 8988 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8989 if ((lun->res_type == SPR_TYPE_EX_AC 8990 && residx != lun->pr_res_idx) 8991 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8992 || lun->res_type == SPR_TYPE_EX_AC_AR) 8993 && !lun->per_res[residx].registered)) { 8994 ctl_set_reservation_conflict(ctsio); 8995 ctl_done((union ctl_io *)ctsio); 8996 return (CTL_RETVAL_COMPLETE); 8997 } 8998 } 8999 9000 switch (ctsio->cdb[0]) { 9001 case READ_6: 9002 case WRITE_6: { 9003 struct scsi_rw_6 *cdb; 9004 9005 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9006 9007 lba = scsi_3btoul(cdb->addr); 9008 /* only 5 bits are valid in the most significant address byte */ 9009 lba &= 0x1fffff; 9010 num_blocks = cdb->length; 9011 /* 9012 * This is correct according to SBC-2. 9013 */ 9014 if (num_blocks == 0) 9015 num_blocks = 256; 9016 break; 9017 } 9018 case READ_10: 9019 case WRITE_10: { 9020 struct scsi_rw_10 *cdb; 9021 9022 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9023 9024 if (cdb->byte2 & SRW10_FUA) 9025 fua = 1; 9026 if (cdb->byte2 & SRW10_DPO) 9027 dpo = 1; 9028 9029 lba = scsi_4btoul(cdb->addr); 9030 num_blocks = scsi_2btoul(cdb->length); 9031 break; 9032 } 9033 case WRITE_VERIFY_10: { 9034 struct scsi_write_verify_10 *cdb; 9035 9036 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9037 9038 /* 9039 * XXX KDM we should do actual write verify support at some 9040 * point. This is obviously fake, we're just translating 9041 * things to a write. So we don't even bother checking the 9042 * BYTCHK field, since we don't do any verification. If 9043 * the user asks for it, we'll just pretend we did it. 9044 */ 9045 if (cdb->byte2 & SWV_DPO) 9046 dpo = 1; 9047 9048 lba = scsi_4btoul(cdb->addr); 9049 num_blocks = scsi_2btoul(cdb->length); 9050 break; 9051 } 9052 case READ_12: 9053 case WRITE_12: { 9054 struct scsi_rw_12 *cdb; 9055 9056 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9057 9058 if (cdb->byte2 & SRW12_FUA) 9059 fua = 1; 9060 if (cdb->byte2 & SRW12_DPO) 9061 dpo = 1; 9062 lba = scsi_4btoul(cdb->addr); 9063 num_blocks = scsi_4btoul(cdb->length); 9064 break; 9065 } 9066 case WRITE_VERIFY_12: { 9067 struct scsi_write_verify_12 *cdb; 9068 9069 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9070 9071 if (cdb->byte2 & SWV_DPO) 9072 dpo = 1; 9073 9074 lba = scsi_4btoul(cdb->addr); 9075 num_blocks = scsi_4btoul(cdb->length); 9076 9077 break; 9078 } 9079 case READ_16: 9080 case WRITE_16: { 9081 struct scsi_rw_16 *cdb; 9082 9083 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9084 9085 if (cdb->byte2 & SRW12_FUA) 9086 fua = 1; 9087 if (cdb->byte2 & SRW12_DPO) 9088 dpo = 1; 9089 9090 lba = scsi_8btou64(cdb->addr); 9091 num_blocks = scsi_4btoul(cdb->length); 9092 break; 9093 } 9094 case WRITE_VERIFY_16: { 9095 struct scsi_write_verify_16 *cdb; 9096 9097 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9098 9099 if (cdb->byte2 & SWV_DPO) 9100 dpo = 1; 9101 9102 lba = scsi_8btou64(cdb->addr); 9103 num_blocks = scsi_4btoul(cdb->length); 9104 break; 9105 } 9106 default: 9107 /* 9108 * We got a command we don't support. This shouldn't 9109 * happen, commands should be filtered out above us. 9110 */ 9111 ctl_set_invalid_opcode(ctsio); 9112 ctl_done((union ctl_io *)ctsio); 9113 9114 return (CTL_RETVAL_COMPLETE); 9115 break; /* NOTREACHED */ 9116 } 9117 9118 /* 9119 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9120 * interesting for us, but if RAIDCore is in write-back mode, 9121 * getting it to do write-through for a particular transaction may 9122 * not be possible. 9123 */ 9124 9125 /* 9126 * The first check is to make sure we're in bounds, the second 9127 * check is to catch wrap-around problems. If the lba + num blocks 9128 * is less than the lba, then we've wrapped around and the block 9129 * range is invalid anyway. 9130 */ 9131 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9132 || ((lba + num_blocks) < lba)) { 9133 ctl_set_lba_out_of_range(ctsio); 9134 ctl_done((union ctl_io *)ctsio); 9135 return (CTL_RETVAL_COMPLETE); 9136 } 9137 9138 /* 9139 * According to SBC-3, a transfer length of 0 is not an error. 9140 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9141 * translates to 256 blocks for those commands. 9142 */ 9143 if (num_blocks == 0) { 9144 ctl_set_success(ctsio); 9145 ctl_done((union ctl_io *)ctsio); 9146 return (CTL_RETVAL_COMPLETE); 9147 } 9148 9149 lbalen = (struct ctl_lba_len_flags *) 9150 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9151 lbalen->lba = lba; 9152 lbalen->len = num_blocks; 9153 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9154 9155 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9156 ctsio->kern_rel_offset = 0; 9157 9158 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9159 9160 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9161 9162 return (retval); 9163} 9164 9165static int 9166ctl_cnw_cont(union ctl_io *io) 9167{ 9168 struct ctl_scsiio *ctsio; 9169 struct ctl_lun *lun; 9170 struct ctl_lba_len_flags *lbalen; 9171 int retval; 9172 9173 ctsio = &io->scsiio; 9174 ctsio->io_hdr.status = CTL_STATUS_NONE; 9175 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9176 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9177 lbalen = (struct ctl_lba_len_flags *) 9178 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9179 lbalen->flags = CTL_LLF_WRITE; 9180 9181 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9182 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9183 return (retval); 9184} 9185 9186int 9187ctl_cnw(struct ctl_scsiio *ctsio) 9188{ 9189 struct ctl_lun *lun; 9190 struct ctl_lba_len_flags *lbalen; 9191 uint64_t lba; 9192 uint32_t num_blocks; 9193 int fua, dpo; 9194 int retval; 9195 9196 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9197 9198 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9199 9200 fua = 0; 9201 dpo = 0; 9202 9203 retval = CTL_RETVAL_COMPLETE; 9204 9205 switch (ctsio->cdb[0]) { 9206 case COMPARE_AND_WRITE: { 9207 struct scsi_compare_and_write *cdb; 9208 9209 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9210 9211 if (cdb->byte2 & SRW10_FUA) 9212 fua = 1; 9213 if (cdb->byte2 & SRW10_DPO) 9214 dpo = 1; 9215 lba = scsi_8btou64(cdb->addr); 9216 num_blocks = cdb->length; 9217 break; 9218 } 9219 default: 9220 /* 9221 * We got a command we don't support. This shouldn't 9222 * happen, commands should be filtered out above us. 9223 */ 9224 ctl_set_invalid_opcode(ctsio); 9225 ctl_done((union ctl_io *)ctsio); 9226 9227 return (CTL_RETVAL_COMPLETE); 9228 break; /* NOTREACHED */ 9229 } 9230 9231 /* 9232 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9233 * interesting for us, but if RAIDCore is in write-back mode, 9234 * getting it to do write-through for a particular transaction may 9235 * not be possible. 9236 */ 9237 9238 /* 9239 * The first check is to make sure we're in bounds, the second 9240 * check is to catch wrap-around problems. If the lba + num blocks 9241 * is less than the lba, then we've wrapped around and the block 9242 * range is invalid anyway. 9243 */ 9244 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9245 || ((lba + num_blocks) < lba)) { 9246 ctl_set_lba_out_of_range(ctsio); 9247 ctl_done((union ctl_io *)ctsio); 9248 return (CTL_RETVAL_COMPLETE); 9249 } 9250 9251 /* 9252 * According to SBC-3, a transfer length of 0 is not an error. 9253 */ 9254 if (num_blocks == 0) { 9255 ctl_set_success(ctsio); 9256 ctl_done((union ctl_io *)ctsio); 9257 return (CTL_RETVAL_COMPLETE); 9258 } 9259 9260 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9261 ctsio->kern_rel_offset = 0; 9262 9263 /* 9264 * Set the IO_CONT flag, so that if this I/O gets passed to 9265 * ctl_data_submit_done(), it'll get passed back to 9266 * ctl_ctl_cnw_cont() for further processing. 9267 */ 9268 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9269 ctsio->io_cont = ctl_cnw_cont; 9270 9271 lbalen = (struct ctl_lba_len_flags *) 9272 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9273 lbalen->lba = lba; 9274 lbalen->len = num_blocks; 9275 lbalen->flags = CTL_LLF_COMPARE; 9276 9277 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9278 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9279 return (retval); 9280} 9281 9282int 9283ctl_verify(struct ctl_scsiio *ctsio) 9284{ 9285 struct ctl_lun *lun; 9286 struct ctl_lba_len_flags *lbalen; 9287 uint64_t lba; 9288 uint32_t num_blocks; 9289 int bytchk, dpo; 9290 int retval; 9291 9292 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9293 9294 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9295 9296 bytchk = 0; 9297 dpo = 0; 9298 retval = CTL_RETVAL_COMPLETE; 9299 9300 switch (ctsio->cdb[0]) { 9301 case VERIFY_10: { 9302 struct scsi_verify_10 *cdb; 9303 9304 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9305 if (cdb->byte2 & SVFY_BYTCHK) 9306 bytchk = 1; 9307 if (cdb->byte2 & SVFY_DPO) 9308 dpo = 1; 9309 lba = scsi_4btoul(cdb->addr); 9310 num_blocks = scsi_2btoul(cdb->length); 9311 break; 9312 } 9313 case VERIFY_12: { 9314 struct scsi_verify_12 *cdb; 9315 9316 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9317 if (cdb->byte2 & SVFY_BYTCHK) 9318 bytchk = 1; 9319 if (cdb->byte2 & SVFY_DPO) 9320 dpo = 1; 9321 lba = scsi_4btoul(cdb->addr); 9322 num_blocks = scsi_4btoul(cdb->length); 9323 break; 9324 } 9325 case VERIFY_16: { 9326 struct scsi_rw_16 *cdb; 9327 9328 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9329 if (cdb->byte2 & SVFY_BYTCHK) 9330 bytchk = 1; 9331 if (cdb->byte2 & SVFY_DPO) 9332 dpo = 1; 9333 lba = scsi_8btou64(cdb->addr); 9334 num_blocks = scsi_4btoul(cdb->length); 9335 break; 9336 } 9337 default: 9338 /* 9339 * We got a command we don't support. This shouldn't 9340 * happen, commands should be filtered out above us. 9341 */ 9342 ctl_set_invalid_opcode(ctsio); 9343 ctl_done((union ctl_io *)ctsio); 9344 return (CTL_RETVAL_COMPLETE); 9345 } 9346 9347 /* 9348 * The first check is to make sure we're in bounds, the second 9349 * check is to catch wrap-around problems. If the lba + num blocks 9350 * is less than the lba, then we've wrapped around and the block 9351 * range is invalid anyway. 9352 */ 9353 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9354 || ((lba + num_blocks) < lba)) { 9355 ctl_set_lba_out_of_range(ctsio); 9356 ctl_done((union ctl_io *)ctsio); 9357 return (CTL_RETVAL_COMPLETE); 9358 } 9359 9360 /* 9361 * According to SBC-3, a transfer length of 0 is not an error. 9362 */ 9363 if (num_blocks == 0) { 9364 ctl_set_success(ctsio); 9365 ctl_done((union ctl_io *)ctsio); 9366 return (CTL_RETVAL_COMPLETE); 9367 } 9368 9369 lbalen = (struct ctl_lba_len_flags *) 9370 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9371 lbalen->lba = lba; 9372 lbalen->len = num_blocks; 9373 if (bytchk) { 9374 lbalen->flags = CTL_LLF_COMPARE; 9375 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9376 } else { 9377 lbalen->flags = CTL_LLF_VERIFY; 9378 ctsio->kern_total_len = 0; 9379 } 9380 ctsio->kern_rel_offset = 0; 9381 9382 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9383 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9384 return (retval); 9385} 9386 9387int 9388ctl_report_luns(struct ctl_scsiio *ctsio) 9389{ 9390 struct scsi_report_luns *cdb; 9391 struct scsi_report_luns_data *lun_data; 9392 struct ctl_lun *lun, *request_lun; 9393 int num_luns, retval; 9394 uint32_t alloc_len, lun_datalen; 9395 int num_filled, well_known; 9396 uint32_t initidx, targ_lun_id, lun_id; 9397 9398 retval = CTL_RETVAL_COMPLETE; 9399 well_known = 0; 9400 9401 cdb = (struct scsi_report_luns *)ctsio->cdb; 9402 9403 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9404 9405 mtx_lock(&control_softc->ctl_lock); 9406 num_luns = control_softc->num_luns; 9407 mtx_unlock(&control_softc->ctl_lock); 9408 9409 switch (cdb->select_report) { 9410 case RPL_REPORT_DEFAULT: 9411 case RPL_REPORT_ALL: 9412 break; 9413 case RPL_REPORT_WELLKNOWN: 9414 well_known = 1; 9415 num_luns = 0; 9416 break; 9417 default: 9418 ctl_set_invalid_field(ctsio, 9419 /*sks_valid*/ 1, 9420 /*command*/ 1, 9421 /*field*/ 2, 9422 /*bit_valid*/ 0, 9423 /*bit*/ 0); 9424 ctl_done((union ctl_io *)ctsio); 9425 return (retval); 9426 break; /* NOTREACHED */ 9427 } 9428 9429 alloc_len = scsi_4btoul(cdb->length); 9430 /* 9431 * The initiator has to allocate at least 16 bytes for this request, 9432 * so he can at least get the header and the first LUN. Otherwise 9433 * we reject the request (per SPC-3 rev 14, section 6.21). 9434 */ 9435 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9436 sizeof(struct scsi_report_luns_lundata))) { 9437 ctl_set_invalid_field(ctsio, 9438 /*sks_valid*/ 1, 9439 /*command*/ 1, 9440 /*field*/ 6, 9441 /*bit_valid*/ 0, 9442 /*bit*/ 0); 9443 ctl_done((union ctl_io *)ctsio); 9444 return (retval); 9445 } 9446 9447 request_lun = (struct ctl_lun *) 9448 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9449 9450 lun_datalen = sizeof(*lun_data) + 9451 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9452 9453 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9454 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9455 ctsio->kern_sg_entries = 0; 9456 9457 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9458 9459 mtx_lock(&control_softc->ctl_lock); 9460 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9461 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9462 if (lun_id >= CTL_MAX_LUNS) 9463 continue; 9464 lun = control_softc->ctl_luns[lun_id]; 9465 if (lun == NULL) 9466 continue; 9467 9468 if (targ_lun_id <= 0xff) { 9469 /* 9470 * Peripheral addressing method, bus number 0. 9471 */ 9472 lun_data->luns[num_filled].lundata[0] = 9473 RPL_LUNDATA_ATYP_PERIPH; 9474 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9475 num_filled++; 9476 } else if (targ_lun_id <= 0x3fff) { 9477 /* 9478 * Flat addressing method. 9479 */ 9480 lun_data->luns[num_filled].lundata[0] = 9481 RPL_LUNDATA_ATYP_FLAT | 9482 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9483#ifdef OLDCTLHEADERS 9484 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9485 (targ_lun_id & SRLD_BUS_LUN_MASK); 9486#endif 9487 lun_data->luns[num_filled].lundata[1] = 9488#ifdef OLDCTLHEADERS 9489 targ_lun_id >> SRLD_BUS_LUN_BITS; 9490#endif 9491 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9492 num_filled++; 9493 } else { 9494 printf("ctl_report_luns: bogus LUN number %jd, " 9495 "skipping\n", (intmax_t)targ_lun_id); 9496 } 9497 /* 9498 * According to SPC-3, rev 14 section 6.21: 9499 * 9500 * "The execution of a REPORT LUNS command to any valid and 9501 * installed logical unit shall clear the REPORTED LUNS DATA 9502 * HAS CHANGED unit attention condition for all logical 9503 * units of that target with respect to the requesting 9504 * initiator. A valid and installed logical unit is one 9505 * having a PERIPHERAL QUALIFIER of 000b in the standard 9506 * INQUIRY data (see 6.4.2)." 9507 * 9508 * If request_lun is NULL, the LUN this report luns command 9509 * was issued to is either disabled or doesn't exist. In that 9510 * case, we shouldn't clear any pending lun change unit 9511 * attention. 9512 */ 9513 if (request_lun != NULL) { 9514 mtx_lock(&lun->lun_lock); 9515 lun->pending_sense[initidx].ua_pending &= 9516 ~CTL_UA_LUN_CHANGE; 9517 mtx_unlock(&lun->lun_lock); 9518 } 9519 } 9520 mtx_unlock(&control_softc->ctl_lock); 9521 9522 /* 9523 * It's quite possible that we've returned fewer LUNs than we allocated 9524 * space for. Trim it. 9525 */ 9526 lun_datalen = sizeof(*lun_data) + 9527 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9528 9529 if (lun_datalen < alloc_len) { 9530 ctsio->residual = alloc_len - lun_datalen; 9531 ctsio->kern_data_len = lun_datalen; 9532 ctsio->kern_total_len = lun_datalen; 9533 } else { 9534 ctsio->residual = 0; 9535 ctsio->kern_data_len = alloc_len; 9536 ctsio->kern_total_len = alloc_len; 9537 } 9538 ctsio->kern_data_resid = 0; 9539 ctsio->kern_rel_offset = 0; 9540 ctsio->kern_sg_entries = 0; 9541 9542 /* 9543 * We set this to the actual data length, regardless of how much 9544 * space we actually have to return results. If the user looks at 9545 * this value, he'll know whether or not he allocated enough space 9546 * and reissue the command if necessary. We don't support well 9547 * known logical units, so if the user asks for that, return none. 9548 */ 9549 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9550 9551 /* 9552 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9553 * this request. 9554 */ 9555 ctsio->scsi_status = SCSI_STATUS_OK; 9556 9557 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9558 ctsio->be_move_done = ctl_config_move_done; 9559 ctl_datamove((union ctl_io *)ctsio); 9560 9561 return (retval); 9562} 9563 9564int 9565ctl_request_sense(struct ctl_scsiio *ctsio) 9566{ 9567 struct scsi_request_sense *cdb; 9568 struct scsi_sense_data *sense_ptr; 9569 struct ctl_lun *lun; 9570 uint32_t initidx; 9571 int have_error; 9572 scsi_sense_data_type sense_format; 9573 9574 cdb = (struct scsi_request_sense *)ctsio->cdb; 9575 9576 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9577 9578 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9579 9580 /* 9581 * Determine which sense format the user wants. 9582 */ 9583 if (cdb->byte2 & SRS_DESC) 9584 sense_format = SSD_TYPE_DESC; 9585 else 9586 sense_format = SSD_TYPE_FIXED; 9587 9588 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9589 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9590 ctsio->kern_sg_entries = 0; 9591 9592 /* 9593 * struct scsi_sense_data, which is currently set to 256 bytes, is 9594 * larger than the largest allowed value for the length field in the 9595 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9596 */ 9597 ctsio->residual = 0; 9598 ctsio->kern_data_len = cdb->length; 9599 ctsio->kern_total_len = cdb->length; 9600 9601 ctsio->kern_data_resid = 0; 9602 ctsio->kern_rel_offset = 0; 9603 ctsio->kern_sg_entries = 0; 9604 9605 /* 9606 * If we don't have a LUN, we don't have any pending sense. 9607 */ 9608 if (lun == NULL) 9609 goto no_sense; 9610 9611 have_error = 0; 9612 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9613 /* 9614 * Check for pending sense, and then for pending unit attentions. 9615 * Pending sense gets returned first, then pending unit attentions. 9616 */ 9617 mtx_lock(&lun->lun_lock); 9618 if (ctl_is_set(lun->have_ca, initidx)) { 9619 scsi_sense_data_type stored_format; 9620 9621 /* 9622 * Check to see which sense format was used for the stored 9623 * sense data. 9624 */ 9625 stored_format = scsi_sense_type( 9626 &lun->pending_sense[initidx].sense); 9627 9628 /* 9629 * If the user requested a different sense format than the 9630 * one we stored, then we need to convert it to the other 9631 * format. If we're going from descriptor to fixed format 9632 * sense data, we may lose things in translation, depending 9633 * on what options were used. 9634 * 9635 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9636 * for some reason we'll just copy it out as-is. 9637 */ 9638 if ((stored_format == SSD_TYPE_FIXED) 9639 && (sense_format == SSD_TYPE_DESC)) 9640 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9641 &lun->pending_sense[initidx].sense, 9642 (struct scsi_sense_data_desc *)sense_ptr); 9643 else if ((stored_format == SSD_TYPE_DESC) 9644 && (sense_format == SSD_TYPE_FIXED)) 9645 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9646 &lun->pending_sense[initidx].sense, 9647 (struct scsi_sense_data_fixed *)sense_ptr); 9648 else 9649 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9650 ctl_min(sizeof(*sense_ptr), 9651 sizeof(lun->pending_sense[initidx].sense))); 9652 9653 ctl_clear_mask(lun->have_ca, initidx); 9654 have_error = 1; 9655 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9656 ctl_ua_type ua_type; 9657 9658 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9659 sense_ptr, sense_format); 9660 if (ua_type != CTL_UA_NONE) { 9661 have_error = 1; 9662 /* We're reporting this UA, so clear it */ 9663 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9664 } 9665 } 9666 mtx_unlock(&lun->lun_lock); 9667 9668 /* 9669 * We already have a pending error, return it. 9670 */ 9671 if (have_error != 0) { 9672 /* 9673 * We report the SCSI status as OK, since the status of the 9674 * request sense command itself is OK. 9675 */ 9676 ctsio->scsi_status = SCSI_STATUS_OK; 9677 9678 /* 9679 * We report 0 for the sense length, because we aren't doing 9680 * autosense in this case. We're reporting sense as 9681 * parameter data. 9682 */ 9683 ctsio->sense_len = 0; 9684 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9685 ctsio->be_move_done = ctl_config_move_done; 9686 ctl_datamove((union ctl_io *)ctsio); 9687 9688 return (CTL_RETVAL_COMPLETE); 9689 } 9690 9691no_sense: 9692 9693 /* 9694 * No sense information to report, so we report that everything is 9695 * okay. 9696 */ 9697 ctl_set_sense_data(sense_ptr, 9698 lun, 9699 sense_format, 9700 /*current_error*/ 1, 9701 /*sense_key*/ SSD_KEY_NO_SENSE, 9702 /*asc*/ 0x00, 9703 /*ascq*/ 0x00, 9704 SSD_ELEM_NONE); 9705 9706 ctsio->scsi_status = SCSI_STATUS_OK; 9707 9708 /* 9709 * We report 0 for the sense length, because we aren't doing 9710 * autosense in this case. We're reporting sense as parameter data. 9711 */ 9712 ctsio->sense_len = 0; 9713 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9714 ctsio->be_move_done = ctl_config_move_done; 9715 ctl_datamove((union ctl_io *)ctsio); 9716 9717 return (CTL_RETVAL_COMPLETE); 9718} 9719 9720int 9721ctl_tur(struct ctl_scsiio *ctsio) 9722{ 9723 struct ctl_lun *lun; 9724 9725 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9726 9727 CTL_DEBUG_PRINT(("ctl_tur\n")); 9728 9729 if (lun == NULL) 9730 return (EINVAL); 9731 9732 ctsio->scsi_status = SCSI_STATUS_OK; 9733 ctsio->io_hdr.status = CTL_SUCCESS; 9734 9735 ctl_done((union ctl_io *)ctsio); 9736 9737 return (CTL_RETVAL_COMPLETE); 9738} 9739 9740#ifdef notyet 9741static int 9742ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9743{ 9744 9745} 9746#endif 9747 9748static int 9749ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9750{ 9751 struct scsi_vpd_supported_pages *pages; 9752 int sup_page_size; 9753 struct ctl_lun *lun; 9754 9755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9756 9757 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9758 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9759 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9760 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9761 ctsio->kern_sg_entries = 0; 9762 9763 if (sup_page_size < alloc_len) { 9764 ctsio->residual = alloc_len - sup_page_size; 9765 ctsio->kern_data_len = sup_page_size; 9766 ctsio->kern_total_len = sup_page_size; 9767 } else { 9768 ctsio->residual = 0; 9769 ctsio->kern_data_len = alloc_len; 9770 ctsio->kern_total_len = alloc_len; 9771 } 9772 ctsio->kern_data_resid = 0; 9773 ctsio->kern_rel_offset = 0; 9774 ctsio->kern_sg_entries = 0; 9775 9776 /* 9777 * The control device is always connected. The disk device, on the 9778 * other hand, may not be online all the time. Need to change this 9779 * to figure out whether the disk device is actually online or not. 9780 */ 9781 if (lun != NULL) 9782 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9783 lun->be_lun->lun_type; 9784 else 9785 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9786 9787 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9788 /* Supported VPD pages */ 9789 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9790 /* Serial Number */ 9791 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9792 /* Device Identification */ 9793 pages->page_list[2] = SVPD_DEVICE_ID; 9794 /* SCSI Ports */ 9795 pages->page_list[3] = SVPD_SCSI_PORTS; 9796 /* Block limits */ 9797 pages->page_list[4] = SVPD_BLOCK_LIMITS; 9798 /* Logical Block Provisioning */ 9799 pages->page_list[5] = SVPD_LBP; 9800 9801 ctsio->scsi_status = SCSI_STATUS_OK; 9802 9803 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9804 ctsio->be_move_done = ctl_config_move_done; 9805 ctl_datamove((union ctl_io *)ctsio); 9806 9807 return (CTL_RETVAL_COMPLETE); 9808} 9809 9810static int 9811ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9812{ 9813 struct scsi_vpd_unit_serial_number *sn_ptr; 9814 struct ctl_lun *lun; 9815 9816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9817 9818 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9819 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9820 ctsio->kern_sg_entries = 0; 9821 9822 if (sizeof(*sn_ptr) < alloc_len) { 9823 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9824 ctsio->kern_data_len = sizeof(*sn_ptr); 9825 ctsio->kern_total_len = sizeof(*sn_ptr); 9826 } else { 9827 ctsio->residual = 0; 9828 ctsio->kern_data_len = alloc_len; 9829 ctsio->kern_total_len = alloc_len; 9830 } 9831 ctsio->kern_data_resid = 0; 9832 ctsio->kern_rel_offset = 0; 9833 ctsio->kern_sg_entries = 0; 9834 9835 /* 9836 * The control device is always connected. The disk device, on the 9837 * other hand, may not be online all the time. Need to change this 9838 * to figure out whether the disk device is actually online or not. 9839 */ 9840 if (lun != NULL) 9841 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9842 lun->be_lun->lun_type; 9843 else 9844 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9845 9846 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9847 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9848 /* 9849 * If we don't have a LUN, we just leave the serial number as 9850 * all spaces. 9851 */ 9852 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9853 if (lun != NULL) { 9854 strncpy((char *)sn_ptr->serial_num, 9855 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9856 } 9857 ctsio->scsi_status = SCSI_STATUS_OK; 9858 9859 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9860 ctsio->be_move_done = ctl_config_move_done; 9861 ctl_datamove((union ctl_io *)ctsio); 9862 9863 return (CTL_RETVAL_COMPLETE); 9864} 9865 9866 9867static int 9868ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9869{ 9870 struct scsi_vpd_device_id *devid_ptr; 9871 struct scsi_vpd_id_descriptor *desc; 9872 struct ctl_softc *ctl_softc; 9873 struct ctl_lun *lun; 9874 struct ctl_port *port; 9875 int data_len; 9876 uint8_t proto; 9877 9878 ctl_softc = control_softc; 9879 9880 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9881 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9882 9883 data_len = sizeof(struct scsi_vpd_device_id) + 9884 sizeof(struct scsi_vpd_id_descriptor) + 9885 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9886 sizeof(struct scsi_vpd_id_descriptor) + 9887 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9888 if (lun && lun->lun_devid) 9889 data_len += lun->lun_devid->len; 9890 if (port->port_devid) 9891 data_len += port->port_devid->len; 9892 if (port->target_devid) 9893 data_len += port->target_devid->len; 9894 9895 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9896 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9897 ctsio->kern_sg_entries = 0; 9898 9899 if (data_len < alloc_len) { 9900 ctsio->residual = alloc_len - data_len; 9901 ctsio->kern_data_len = data_len; 9902 ctsio->kern_total_len = data_len; 9903 } else { 9904 ctsio->residual = 0; 9905 ctsio->kern_data_len = alloc_len; 9906 ctsio->kern_total_len = alloc_len; 9907 } 9908 ctsio->kern_data_resid = 0; 9909 ctsio->kern_rel_offset = 0; 9910 ctsio->kern_sg_entries = 0; 9911 9912 /* 9913 * The control device is always connected. The disk device, on the 9914 * other hand, may not be online all the time. 9915 */ 9916 if (lun != NULL) 9917 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9918 lun->be_lun->lun_type; 9919 else 9920 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9921 devid_ptr->page_code = SVPD_DEVICE_ID; 9922 scsi_ulto2b(data_len - 4, devid_ptr->length); 9923 9924 if (port->port_type == CTL_PORT_FC) 9925 proto = SCSI_PROTO_FC << 4; 9926 else if (port->port_type == CTL_PORT_ISCSI) 9927 proto = SCSI_PROTO_ISCSI << 4; 9928 else 9929 proto = SCSI_PROTO_SPI << 4; 9930 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9931 9932 /* 9933 * We're using a LUN association here. i.e., this device ID is a 9934 * per-LUN identifier. 9935 */ 9936 if (lun && lun->lun_devid) { 9937 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9938 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9939 lun->lun_devid->len); 9940 } 9941 9942 /* 9943 * This is for the WWPN which is a port association. 9944 */ 9945 if (port->port_devid) { 9946 memcpy(desc, port->port_devid->data, port->port_devid->len); 9947 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9948 port->port_devid->len); 9949 } 9950 9951 /* 9952 * This is for the Relative Target Port(type 4h) identifier 9953 */ 9954 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9955 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9956 SVPD_ID_TYPE_RELTARG; 9957 desc->length = 4; 9958 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9959 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9960 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9961 9962 /* 9963 * This is for the Target Port Group(type 5h) identifier 9964 */ 9965 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9966 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9967 SVPD_ID_TYPE_TPORTGRP; 9968 desc->length = 4; 9969 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9970 &desc->identifier[2]); 9971 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9972 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9973 9974 /* 9975 * This is for the Target identifier 9976 */ 9977 if (port->target_devid) { 9978 memcpy(desc, port->target_devid->data, port->target_devid->len); 9979 } 9980 9981 ctsio->scsi_status = SCSI_STATUS_OK; 9982 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9983 ctsio->be_move_done = ctl_config_move_done; 9984 ctl_datamove((union ctl_io *)ctsio); 9985 9986 return (CTL_RETVAL_COMPLETE); 9987} 9988 9989static int 9990ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9991{ 9992 struct ctl_softc *softc = control_softc; 9993 struct scsi_vpd_scsi_ports *sp; 9994 struct scsi_vpd_port_designation *pd; 9995 struct scsi_vpd_port_designation_cont *pdc; 9996 struct ctl_lun *lun; 9997 struct ctl_port *port; 9998 int data_len, num_target_ports, id_len, g, pg, p; 9999 int num_target_port_groups, single; 10000 10001 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10002 10003 single = ctl_is_single; 10004 if (single) 10005 num_target_port_groups = 1; 10006 else 10007 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10008 num_target_ports = 0; 10009 id_len = 0; 10010 mtx_lock(&softc->ctl_lock); 10011 STAILQ_FOREACH(port, &softc->port_list, links) { 10012 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10013 continue; 10014 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10015 CTL_MAX_LUNS) 10016 continue; 10017 num_target_ports++; 10018 if (port->port_devid) 10019 id_len += port->port_devid->len; 10020 } 10021 mtx_unlock(&softc->ctl_lock); 10022 10023 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10024 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10025 sizeof(struct scsi_vpd_port_designation_cont)) + id_len; 10026 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10027 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10028 ctsio->kern_sg_entries = 0; 10029 10030 if (data_len < alloc_len) { 10031 ctsio->residual = alloc_len - data_len; 10032 ctsio->kern_data_len = data_len; 10033 ctsio->kern_total_len = data_len; 10034 } else { 10035 ctsio->residual = 0; 10036 ctsio->kern_data_len = alloc_len; 10037 ctsio->kern_total_len = alloc_len; 10038 } 10039 ctsio->kern_data_resid = 0; 10040 ctsio->kern_rel_offset = 0; 10041 ctsio->kern_sg_entries = 0; 10042 10043 /* 10044 * The control device is always connected. The disk device, on the 10045 * other hand, may not be online all the time. Need to change this 10046 * to figure out whether the disk device is actually online or not. 10047 */ 10048 if (lun != NULL) 10049 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10050 lun->be_lun->lun_type; 10051 else 10052 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10053 10054 sp->page_code = SVPD_SCSI_PORTS; 10055 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10056 sp->page_length); 10057 pd = &sp->design[0]; 10058 10059 mtx_lock(&softc->ctl_lock); 10060 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10061 pg = 0; 10062 else 10063 pg = 1; 10064 for (g = 0; g < num_target_port_groups; g++) { 10065 STAILQ_FOREACH(port, &softc->port_list, links) { 10066 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10067 continue; 10068 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10069 CTL_MAX_LUNS) 10070 continue; 10071 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10072 scsi_ulto2b(p, pd->relative_port_id); 10073 scsi_ulto2b(0, pd->initiator_transportid_length); 10074 pdc = (struct scsi_vpd_port_designation_cont *) 10075 &pd->initiator_transportid[0]; 10076 if (port->port_devid && g == pg) { 10077 id_len = port->port_devid->len; 10078 scsi_ulto2b(port->port_devid->len, 10079 pdc->target_port_descriptors_length); 10080 memcpy(pdc->target_port_descriptors, 10081 port->port_devid->data, port->port_devid->len); 10082 } else { 10083 id_len = 0; 10084 scsi_ulto2b(0, pdc->target_port_descriptors_length); 10085 } 10086 pd = (struct scsi_vpd_port_designation *) 10087 ((uint8_t *)pdc->target_port_descriptors + id_len); 10088 } 10089 } 10090 mtx_unlock(&softc->ctl_lock); 10091 10092 ctsio->scsi_status = SCSI_STATUS_OK; 10093 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10094 ctsio->be_move_done = ctl_config_move_done; 10095 ctl_datamove((union ctl_io *)ctsio); 10096 10097 return (CTL_RETVAL_COMPLETE); 10098} 10099 10100static int 10101ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10102{ 10103 struct scsi_vpd_block_limits *bl_ptr; 10104 struct ctl_lun *lun; 10105 int bs; 10106 10107 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10108 bs = lun->be_lun->blocksize; 10109 10110 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10111 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10112 ctsio->kern_sg_entries = 0; 10113 10114 if (sizeof(*bl_ptr) < alloc_len) { 10115 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10116 ctsio->kern_data_len = sizeof(*bl_ptr); 10117 ctsio->kern_total_len = sizeof(*bl_ptr); 10118 } else { 10119 ctsio->residual = 0; 10120 ctsio->kern_data_len = alloc_len; 10121 ctsio->kern_total_len = alloc_len; 10122 } 10123 ctsio->kern_data_resid = 0; 10124 ctsio->kern_rel_offset = 0; 10125 ctsio->kern_sg_entries = 0; 10126 10127 /* 10128 * The control device is always connected. The disk device, on the 10129 * other hand, may not be online all the time. Need to change this 10130 * to figure out whether the disk device is actually online or not. 10131 */ 10132 if (lun != NULL) 10133 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10134 lun->be_lun->lun_type; 10135 else 10136 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10137 10138 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10139 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10140 bl_ptr->max_cmp_write_len = 0xff; 10141 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10142 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10143 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10144 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10145 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10146 } 10147 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10148 10149 ctsio->scsi_status = SCSI_STATUS_OK; 10150 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10151 ctsio->be_move_done = ctl_config_move_done; 10152 ctl_datamove((union ctl_io *)ctsio); 10153 10154 return (CTL_RETVAL_COMPLETE); 10155} 10156 10157static int 10158ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10159{ 10160 struct scsi_vpd_logical_block_prov *lbp_ptr; 10161 struct ctl_lun *lun; 10162 int bs; 10163 10164 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10165 bs = lun->be_lun->blocksize; 10166 10167 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10168 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10169 ctsio->kern_sg_entries = 0; 10170 10171 if (sizeof(*lbp_ptr) < alloc_len) { 10172 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10173 ctsio->kern_data_len = sizeof(*lbp_ptr); 10174 ctsio->kern_total_len = sizeof(*lbp_ptr); 10175 } else { 10176 ctsio->residual = 0; 10177 ctsio->kern_data_len = alloc_len; 10178 ctsio->kern_total_len = alloc_len; 10179 } 10180 ctsio->kern_data_resid = 0; 10181 ctsio->kern_rel_offset = 0; 10182 ctsio->kern_sg_entries = 0; 10183 10184 /* 10185 * The control device is always connected. The disk device, on the 10186 * other hand, may not be online all the time. Need to change this 10187 * to figure out whether the disk device is actually online or not. 10188 */ 10189 if (lun != NULL) 10190 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10191 lun->be_lun->lun_type; 10192 else 10193 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10194 10195 lbp_ptr->page_code = SVPD_LBP; 10196 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10197 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10198 10199 ctsio->scsi_status = SCSI_STATUS_OK; 10200 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10201 ctsio->be_move_done = ctl_config_move_done; 10202 ctl_datamove((union ctl_io *)ctsio); 10203 10204 return (CTL_RETVAL_COMPLETE); 10205} 10206 10207static int 10208ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10209{ 10210 struct scsi_inquiry *cdb; 10211 struct ctl_lun *lun; 10212 int alloc_len, retval; 10213 10214 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10215 cdb = (struct scsi_inquiry *)ctsio->cdb; 10216 10217 retval = CTL_RETVAL_COMPLETE; 10218 10219 alloc_len = scsi_2btoul(cdb->length); 10220 10221 switch (cdb->page_code) { 10222 case SVPD_SUPPORTED_PAGES: 10223 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10224 break; 10225 case SVPD_UNIT_SERIAL_NUMBER: 10226 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10227 break; 10228 case SVPD_DEVICE_ID: 10229 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10230 break; 10231 case SVPD_SCSI_PORTS: 10232 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10233 break; 10234 case SVPD_BLOCK_LIMITS: 10235 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10236 break; 10237 case SVPD_LBP: 10238 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10239 break; 10240 default: 10241 ctl_set_invalid_field(ctsio, 10242 /*sks_valid*/ 1, 10243 /*command*/ 1, 10244 /*field*/ 2, 10245 /*bit_valid*/ 0, 10246 /*bit*/ 0); 10247 ctl_done((union ctl_io *)ctsio); 10248 retval = CTL_RETVAL_COMPLETE; 10249 break; 10250 } 10251 10252 return (retval); 10253} 10254 10255static int 10256ctl_inquiry_std(struct ctl_scsiio *ctsio) 10257{ 10258 struct scsi_inquiry_data *inq_ptr; 10259 struct scsi_inquiry *cdb; 10260 struct ctl_softc *ctl_softc; 10261 struct ctl_lun *lun; 10262 char *val; 10263 uint32_t alloc_len; 10264 int is_fc; 10265 10266 ctl_softc = control_softc; 10267 10268 /* 10269 * Figure out whether we're talking to a Fibre Channel port or not. 10270 * We treat the ioctl front end, and any SCSI adapters, as packetized 10271 * SCSI front ends. 10272 */ 10273 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 10274 CTL_PORT_FC) 10275 is_fc = 0; 10276 else 10277 is_fc = 1; 10278 10279 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10280 cdb = (struct scsi_inquiry *)ctsio->cdb; 10281 alloc_len = scsi_2btoul(cdb->length); 10282 10283 /* 10284 * We malloc the full inquiry data size here and fill it 10285 * in. If the user only asks for less, we'll give him 10286 * that much. 10287 */ 10288 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10289 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10290 ctsio->kern_sg_entries = 0; 10291 ctsio->kern_data_resid = 0; 10292 ctsio->kern_rel_offset = 0; 10293 10294 if (sizeof(*inq_ptr) < alloc_len) { 10295 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10296 ctsio->kern_data_len = sizeof(*inq_ptr); 10297 ctsio->kern_total_len = sizeof(*inq_ptr); 10298 } else { 10299 ctsio->residual = 0; 10300 ctsio->kern_data_len = alloc_len; 10301 ctsio->kern_total_len = alloc_len; 10302 } 10303 10304 /* 10305 * If we have a LUN configured, report it as connected. Otherwise, 10306 * report that it is offline or no device is supported, depending 10307 * on the value of inquiry_pq_no_lun. 10308 * 10309 * According to the spec (SPC-4 r34), the peripheral qualifier 10310 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10311 * 10312 * "A peripheral device having the specified peripheral device type 10313 * is not connected to this logical unit. However, the device 10314 * server is capable of supporting the specified peripheral device 10315 * type on this logical unit." 10316 * 10317 * According to the same spec, the peripheral qualifier 10318 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10319 * 10320 * "The device server is not capable of supporting a peripheral 10321 * device on this logical unit. For this peripheral qualifier the 10322 * peripheral device type shall be set to 1Fh. All other peripheral 10323 * device type values are reserved for this peripheral qualifier." 10324 * 10325 * Given the text, it would seem that we probably want to report that 10326 * the LUN is offline here. There is no LUN connected, but we can 10327 * support a LUN at the given LUN number. 10328 * 10329 * In the real world, though, it sounds like things are a little 10330 * different: 10331 * 10332 * - Linux, when presented with a LUN with the offline peripheral 10333 * qualifier, will create an sg driver instance for it. So when 10334 * you attach it to CTL, you wind up with a ton of sg driver 10335 * instances. (One for every LUN that Linux bothered to probe.) 10336 * Linux does this despite the fact that it issues a REPORT LUNs 10337 * to LUN 0 to get the inventory of supported LUNs. 10338 * 10339 * - There is other anecdotal evidence (from Emulex folks) about 10340 * arrays that use the offline peripheral qualifier for LUNs that 10341 * are on the "passive" path in an active/passive array. 10342 * 10343 * So the solution is provide a hopefully reasonable default 10344 * (return bad/no LUN) and allow the user to change the behavior 10345 * with a tunable/sysctl variable. 10346 */ 10347 if (lun != NULL) 10348 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10349 lun->be_lun->lun_type; 10350 else if (ctl_softc->inquiry_pq_no_lun == 0) 10351 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10352 else 10353 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10354 10355 /* RMB in byte 2 is 0 */ 10356 inq_ptr->version = SCSI_REV_SPC3; 10357 10358 /* 10359 * According to SAM-3, even if a device only supports a single 10360 * level of LUN addressing, it should still set the HISUP bit: 10361 * 10362 * 4.9.1 Logical unit numbers overview 10363 * 10364 * All logical unit number formats described in this standard are 10365 * hierarchical in structure even when only a single level in that 10366 * hierarchy is used. The HISUP bit shall be set to one in the 10367 * standard INQUIRY data (see SPC-2) when any logical unit number 10368 * format described in this standard is used. Non-hierarchical 10369 * formats are outside the scope of this standard. 10370 * 10371 * Therefore we set the HiSup bit here. 10372 * 10373 * The reponse format is 2, per SPC-3. 10374 */ 10375 inq_ptr->response_format = SID_HiSup | 2; 10376 10377 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10378 CTL_DEBUG_PRINT(("additional_length = %d\n", 10379 inq_ptr->additional_length)); 10380 10381 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10382 /* 16 bit addressing */ 10383 if (is_fc == 0) 10384 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10385 /* XXX set the SID_MultiP bit here if we're actually going to 10386 respond on multiple ports */ 10387 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10388 10389 /* 16 bit data bus, synchronous transfers */ 10390 /* XXX these flags don't apply for FC */ 10391 if (is_fc == 0) 10392 inq_ptr->flags = SID_WBus16 | SID_Sync; 10393 /* 10394 * XXX KDM do we want to support tagged queueing on the control 10395 * device at all? 10396 */ 10397 if ((lun == NULL) 10398 || (lun->be_lun->lun_type != T_PROCESSOR)) 10399 inq_ptr->flags |= SID_CmdQue; 10400 /* 10401 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10402 * We have 8 bytes for the vendor name, and 16 bytes for the device 10403 * name and 4 bytes for the revision. 10404 */ 10405 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10406 "vendor")) == NULL) { 10407 strcpy(inq_ptr->vendor, CTL_VENDOR); 10408 } else { 10409 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10410 strncpy(inq_ptr->vendor, val, 10411 min(sizeof(inq_ptr->vendor), strlen(val))); 10412 } 10413 if (lun == NULL) { 10414 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10415 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10416 switch (lun->be_lun->lun_type) { 10417 case T_DIRECT: 10418 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10419 break; 10420 case T_PROCESSOR: 10421 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10422 break; 10423 default: 10424 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10425 break; 10426 } 10427 } else { 10428 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10429 strncpy(inq_ptr->product, val, 10430 min(sizeof(inq_ptr->product), strlen(val))); 10431 } 10432 10433 /* 10434 * XXX make this a macro somewhere so it automatically gets 10435 * incremented when we make changes. 10436 */ 10437 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10438 "revision")) == NULL) { 10439 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10440 } else { 10441 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10442 strncpy(inq_ptr->revision, val, 10443 min(sizeof(inq_ptr->revision), strlen(val))); 10444 } 10445 10446 /* 10447 * For parallel SCSI, we support double transition and single 10448 * transition clocking. We also support QAS (Quick Arbitration 10449 * and Selection) and Information Unit transfers on both the 10450 * control and array devices. 10451 */ 10452 if (is_fc == 0) 10453 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10454 SID_SPI_IUS; 10455 10456 /* SAM-3 */ 10457 scsi_ulto2b(0x0060, inq_ptr->version1); 10458 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10459 scsi_ulto2b(0x0300, inq_ptr->version2); 10460 if (is_fc) { 10461 /* FCP-2 ANSI INCITS.350:2003 */ 10462 scsi_ulto2b(0x0917, inq_ptr->version3); 10463 } else { 10464 /* SPI-4 ANSI INCITS.362:200x */ 10465 scsi_ulto2b(0x0B56, inq_ptr->version3); 10466 } 10467 10468 if (lun == NULL) { 10469 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10470 scsi_ulto2b(0x0320, inq_ptr->version4); 10471 } else { 10472 switch (lun->be_lun->lun_type) { 10473 case T_DIRECT: 10474 /* 10475 * SBC-2 (no version claimed) XXX should we claim a 10476 * version? 10477 */ 10478 scsi_ulto2b(0x0320, inq_ptr->version4); 10479 break; 10480 case T_PROCESSOR: 10481 default: 10482 break; 10483 } 10484 } 10485 10486 ctsio->scsi_status = SCSI_STATUS_OK; 10487 if (ctsio->kern_data_len > 0) { 10488 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10489 ctsio->be_move_done = ctl_config_move_done; 10490 ctl_datamove((union ctl_io *)ctsio); 10491 } else { 10492 ctsio->io_hdr.status = CTL_SUCCESS; 10493 ctl_done((union ctl_io *)ctsio); 10494 } 10495 10496 return (CTL_RETVAL_COMPLETE); 10497} 10498 10499int 10500ctl_inquiry(struct ctl_scsiio *ctsio) 10501{ 10502 struct scsi_inquiry *cdb; 10503 int retval; 10504 10505 cdb = (struct scsi_inquiry *)ctsio->cdb; 10506 10507 retval = 0; 10508 10509 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10510 10511 /* 10512 * Right now, we don't support the CmdDt inquiry information. 10513 * This would be nice to support in the future. When we do 10514 * support it, we should change this test so that it checks to make 10515 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10516 */ 10517#ifdef notyet 10518 if (((cdb->byte2 & SI_EVPD) 10519 && (cdb->byte2 & SI_CMDDT))) 10520#endif 10521 if (cdb->byte2 & SI_CMDDT) { 10522 /* 10523 * Point to the SI_CMDDT bit. We might change this 10524 * when we support SI_CMDDT, but since both bits would be 10525 * "wrong", this should probably just stay as-is then. 10526 */ 10527 ctl_set_invalid_field(ctsio, 10528 /*sks_valid*/ 1, 10529 /*command*/ 1, 10530 /*field*/ 1, 10531 /*bit_valid*/ 1, 10532 /*bit*/ 1); 10533 ctl_done((union ctl_io *)ctsio); 10534 return (CTL_RETVAL_COMPLETE); 10535 } 10536 if (cdb->byte2 & SI_EVPD) 10537 retval = ctl_inquiry_evpd(ctsio); 10538#ifdef notyet 10539 else if (cdb->byte2 & SI_CMDDT) 10540 retval = ctl_inquiry_cmddt(ctsio); 10541#endif 10542 else 10543 retval = ctl_inquiry_std(ctsio); 10544 10545 return (retval); 10546} 10547 10548/* 10549 * For known CDB types, parse the LBA and length. 10550 */ 10551static int 10552ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10553{ 10554 if (io->io_hdr.io_type != CTL_IO_SCSI) 10555 return (1); 10556 10557 switch (io->scsiio.cdb[0]) { 10558 case COMPARE_AND_WRITE: { 10559 struct scsi_compare_and_write *cdb; 10560 10561 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10562 10563 *lba = scsi_8btou64(cdb->addr); 10564 *len = cdb->length; 10565 break; 10566 } 10567 case READ_6: 10568 case WRITE_6: { 10569 struct scsi_rw_6 *cdb; 10570 10571 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10572 10573 *lba = scsi_3btoul(cdb->addr); 10574 /* only 5 bits are valid in the most significant address byte */ 10575 *lba &= 0x1fffff; 10576 *len = cdb->length; 10577 break; 10578 } 10579 case READ_10: 10580 case WRITE_10: { 10581 struct scsi_rw_10 *cdb; 10582 10583 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10584 10585 *lba = scsi_4btoul(cdb->addr); 10586 *len = scsi_2btoul(cdb->length); 10587 break; 10588 } 10589 case WRITE_VERIFY_10: { 10590 struct scsi_write_verify_10 *cdb; 10591 10592 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10593 10594 *lba = scsi_4btoul(cdb->addr); 10595 *len = scsi_2btoul(cdb->length); 10596 break; 10597 } 10598 case READ_12: 10599 case WRITE_12: { 10600 struct scsi_rw_12 *cdb; 10601 10602 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10603 10604 *lba = scsi_4btoul(cdb->addr); 10605 *len = scsi_4btoul(cdb->length); 10606 break; 10607 } 10608 case WRITE_VERIFY_12: { 10609 struct scsi_write_verify_12 *cdb; 10610 10611 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10612 10613 *lba = scsi_4btoul(cdb->addr); 10614 *len = scsi_4btoul(cdb->length); 10615 break; 10616 } 10617 case READ_16: 10618 case WRITE_16: { 10619 struct scsi_rw_16 *cdb; 10620 10621 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10622 10623 *lba = scsi_8btou64(cdb->addr); 10624 *len = scsi_4btoul(cdb->length); 10625 break; 10626 } 10627 case WRITE_VERIFY_16: { 10628 struct scsi_write_verify_16 *cdb; 10629 10630 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10631 10632 10633 *lba = scsi_8btou64(cdb->addr); 10634 *len = scsi_4btoul(cdb->length); 10635 break; 10636 } 10637 case WRITE_SAME_10: { 10638 struct scsi_write_same_10 *cdb; 10639 10640 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10641 10642 *lba = scsi_4btoul(cdb->addr); 10643 *len = scsi_2btoul(cdb->length); 10644 break; 10645 } 10646 case WRITE_SAME_16: { 10647 struct scsi_write_same_16 *cdb; 10648 10649 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10650 10651 *lba = scsi_8btou64(cdb->addr); 10652 *len = scsi_4btoul(cdb->length); 10653 break; 10654 } 10655 case VERIFY_10: { 10656 struct scsi_verify_10 *cdb; 10657 10658 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10659 10660 *lba = scsi_4btoul(cdb->addr); 10661 *len = scsi_2btoul(cdb->length); 10662 break; 10663 } 10664 case VERIFY_12: { 10665 struct scsi_verify_12 *cdb; 10666 10667 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10668 10669 *lba = scsi_4btoul(cdb->addr); 10670 *len = scsi_4btoul(cdb->length); 10671 break; 10672 } 10673 case VERIFY_16: { 10674 struct scsi_verify_16 *cdb; 10675 10676 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10677 10678 *lba = scsi_8btou64(cdb->addr); 10679 *len = scsi_4btoul(cdb->length); 10680 break; 10681 } 10682 default: 10683 return (1); 10684 break; /* NOTREACHED */ 10685 } 10686 10687 return (0); 10688} 10689 10690static ctl_action 10691ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10692{ 10693 uint64_t endlba1, endlba2; 10694 10695 endlba1 = lba1 + len1 - 1; 10696 endlba2 = lba2 + len2 - 1; 10697 10698 if ((endlba1 < lba2) 10699 || (endlba2 < lba1)) 10700 return (CTL_ACTION_PASS); 10701 else 10702 return (CTL_ACTION_BLOCK); 10703} 10704 10705static ctl_action 10706ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10707{ 10708 uint64_t lba1, lba2; 10709 uint32_t len1, len2; 10710 int retval; 10711 10712 retval = ctl_get_lba_len(io1, &lba1, &len1); 10713 if (retval != 0) 10714 return (CTL_ACTION_ERROR); 10715 10716 retval = ctl_get_lba_len(io2, &lba2, &len2); 10717 if (retval != 0) 10718 return (CTL_ACTION_ERROR); 10719 10720 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10721} 10722 10723static ctl_action 10724ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10725{ 10726 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10727 ctl_serialize_action *serialize_row; 10728 10729 /* 10730 * The initiator attempted multiple untagged commands at the same 10731 * time. Can't do that. 10732 */ 10733 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10734 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10735 && ((pending_io->io_hdr.nexus.targ_port == 10736 ooa_io->io_hdr.nexus.targ_port) 10737 && (pending_io->io_hdr.nexus.initid.id == 10738 ooa_io->io_hdr.nexus.initid.id)) 10739 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10740 return (CTL_ACTION_OVERLAP); 10741 10742 /* 10743 * The initiator attempted to send multiple tagged commands with 10744 * the same ID. (It's fine if different initiators have the same 10745 * tag ID.) 10746 * 10747 * Even if all of those conditions are true, we don't kill the I/O 10748 * if the command ahead of us has been aborted. We won't end up 10749 * sending it to the FETD, and it's perfectly legal to resend a 10750 * command with the same tag number as long as the previous 10751 * instance of this tag number has been aborted somehow. 10752 */ 10753 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10754 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10755 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10756 && ((pending_io->io_hdr.nexus.targ_port == 10757 ooa_io->io_hdr.nexus.targ_port) 10758 && (pending_io->io_hdr.nexus.initid.id == 10759 ooa_io->io_hdr.nexus.initid.id)) 10760 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10761 return (CTL_ACTION_OVERLAP_TAG); 10762 10763 /* 10764 * If we get a head of queue tag, SAM-3 says that we should 10765 * immediately execute it. 10766 * 10767 * What happens if this command would normally block for some other 10768 * reason? e.g. a request sense with a head of queue tag 10769 * immediately after a write. Normally that would block, but this 10770 * will result in its getting executed immediately... 10771 * 10772 * We currently return "pass" instead of "skip", so we'll end up 10773 * going through the rest of the queue to check for overlapped tags. 10774 * 10775 * XXX KDM check for other types of blockage first?? 10776 */ 10777 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10778 return (CTL_ACTION_PASS); 10779 10780 /* 10781 * Ordered tags have to block until all items ahead of them 10782 * have completed. If we get called with an ordered tag, we always 10783 * block, if something else is ahead of us in the queue. 10784 */ 10785 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10786 return (CTL_ACTION_BLOCK); 10787 10788 /* 10789 * Simple tags get blocked until all head of queue and ordered tags 10790 * ahead of them have completed. I'm lumping untagged commands in 10791 * with simple tags here. XXX KDM is that the right thing to do? 10792 */ 10793 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10794 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10795 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10796 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10797 return (CTL_ACTION_BLOCK); 10798 10799 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10800 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10801 10802 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10803 10804 switch (serialize_row[pending_entry->seridx]) { 10805 case CTL_SER_BLOCK: 10806 return (CTL_ACTION_BLOCK); 10807 break; /* NOTREACHED */ 10808 case CTL_SER_EXTENT: 10809 return (ctl_extent_check(pending_io, ooa_io)); 10810 break; /* NOTREACHED */ 10811 case CTL_SER_PASS: 10812 return (CTL_ACTION_PASS); 10813 break; /* NOTREACHED */ 10814 case CTL_SER_SKIP: 10815 return (CTL_ACTION_SKIP); 10816 break; 10817 default: 10818 panic("invalid serialization value %d", 10819 serialize_row[pending_entry->seridx]); 10820 break; /* NOTREACHED */ 10821 } 10822 10823 return (CTL_ACTION_ERROR); 10824} 10825 10826/* 10827 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10828 * Assumptions: 10829 * - pending_io is generally either incoming, or on the blocked queue 10830 * - starting I/O is the I/O we want to start the check with. 10831 */ 10832static ctl_action 10833ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10834 union ctl_io *starting_io) 10835{ 10836 union ctl_io *ooa_io; 10837 ctl_action action; 10838 10839 mtx_assert(&lun->lun_lock, MA_OWNED); 10840 10841 /* 10842 * Run back along the OOA queue, starting with the current 10843 * blocked I/O and going through every I/O before it on the 10844 * queue. If starting_io is NULL, we'll just end up returning 10845 * CTL_ACTION_PASS. 10846 */ 10847 for (ooa_io = starting_io; ooa_io != NULL; 10848 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10849 ooa_links)){ 10850 10851 /* 10852 * This routine just checks to see whether 10853 * cur_blocked is blocked by ooa_io, which is ahead 10854 * of it in the queue. It doesn't queue/dequeue 10855 * cur_blocked. 10856 */ 10857 action = ctl_check_for_blockage(pending_io, ooa_io); 10858 switch (action) { 10859 case CTL_ACTION_BLOCK: 10860 case CTL_ACTION_OVERLAP: 10861 case CTL_ACTION_OVERLAP_TAG: 10862 case CTL_ACTION_SKIP: 10863 case CTL_ACTION_ERROR: 10864 return (action); 10865 break; /* NOTREACHED */ 10866 case CTL_ACTION_PASS: 10867 break; 10868 default: 10869 panic("invalid action %d", action); 10870 break; /* NOTREACHED */ 10871 } 10872 } 10873 10874 return (CTL_ACTION_PASS); 10875} 10876 10877/* 10878 * Assumptions: 10879 * - An I/O has just completed, and has been removed from the per-LUN OOA 10880 * queue, so some items on the blocked queue may now be unblocked. 10881 */ 10882static int 10883ctl_check_blocked(struct ctl_lun *lun) 10884{ 10885 union ctl_io *cur_blocked, *next_blocked; 10886 10887 mtx_assert(&lun->lun_lock, MA_OWNED); 10888 10889 /* 10890 * Run forward from the head of the blocked queue, checking each 10891 * entry against the I/Os prior to it on the OOA queue to see if 10892 * there is still any blockage. 10893 * 10894 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10895 * with our removing a variable on it while it is traversing the 10896 * list. 10897 */ 10898 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10899 cur_blocked != NULL; cur_blocked = next_blocked) { 10900 union ctl_io *prev_ooa; 10901 ctl_action action; 10902 10903 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10904 blocked_links); 10905 10906 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10907 ctl_ooaq, ooa_links); 10908 10909 /* 10910 * If cur_blocked happens to be the first item in the OOA 10911 * queue now, prev_ooa will be NULL, and the action 10912 * returned will just be CTL_ACTION_PASS. 10913 */ 10914 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10915 10916 switch (action) { 10917 case CTL_ACTION_BLOCK: 10918 /* Nothing to do here, still blocked */ 10919 break; 10920 case CTL_ACTION_OVERLAP: 10921 case CTL_ACTION_OVERLAP_TAG: 10922 /* 10923 * This shouldn't happen! In theory we've already 10924 * checked this command for overlap... 10925 */ 10926 break; 10927 case CTL_ACTION_PASS: 10928 case CTL_ACTION_SKIP: { 10929 struct ctl_softc *softc; 10930 const struct ctl_cmd_entry *entry; 10931 uint32_t initidx; 10932 int isc_retval; 10933 10934 /* 10935 * The skip case shouldn't happen, this transaction 10936 * should have never made it onto the blocked queue. 10937 */ 10938 /* 10939 * This I/O is no longer blocked, we can remove it 10940 * from the blocked queue. Since this is a TAILQ 10941 * (doubly linked list), we can do O(1) removals 10942 * from any place on the list. 10943 */ 10944 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10945 blocked_links); 10946 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10947 10948 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10949 /* 10950 * Need to send IO back to original side to 10951 * run 10952 */ 10953 union ctl_ha_msg msg_info; 10954 10955 msg_info.hdr.original_sc = 10956 cur_blocked->io_hdr.original_sc; 10957 msg_info.hdr.serializing_sc = cur_blocked; 10958 msg_info.hdr.msg_type = CTL_MSG_R2R; 10959 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10960 &msg_info, sizeof(msg_info), 0)) > 10961 CTL_HA_STATUS_SUCCESS) { 10962 printf("CTL:Check Blocked error from " 10963 "ctl_ha_msg_send %d\n", 10964 isc_retval); 10965 } 10966 break; 10967 } 10968 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10969 softc = control_softc; 10970 10971 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10972 10973 /* 10974 * Check this I/O for LUN state changes that may 10975 * have happened while this command was blocked. 10976 * The LUN state may have been changed by a command 10977 * ahead of us in the queue, so we need to re-check 10978 * for any states that can be caused by SCSI 10979 * commands. 10980 */ 10981 if (ctl_scsiio_lun_check(softc, lun, entry, 10982 &cur_blocked->scsiio) == 0) { 10983 cur_blocked->io_hdr.flags |= 10984 CTL_FLAG_IS_WAS_ON_RTR; 10985 ctl_enqueue_rtr(cur_blocked); 10986 } else 10987 ctl_done(cur_blocked); 10988 break; 10989 } 10990 default: 10991 /* 10992 * This probably shouldn't happen -- we shouldn't 10993 * get CTL_ACTION_ERROR, or anything else. 10994 */ 10995 break; 10996 } 10997 } 10998 10999 return (CTL_RETVAL_COMPLETE); 11000} 11001 11002/* 11003 * This routine (with one exception) checks LUN flags that can be set by 11004 * commands ahead of us in the OOA queue. These flags have to be checked 11005 * when a command initially comes in, and when we pull a command off the 11006 * blocked queue and are preparing to execute it. The reason we have to 11007 * check these flags for commands on the blocked queue is that the LUN 11008 * state may have been changed by a command ahead of us while we're on the 11009 * blocked queue. 11010 * 11011 * Ordering is somewhat important with these checks, so please pay 11012 * careful attention to the placement of any new checks. 11013 */ 11014static int 11015ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11016 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11017{ 11018 int retval; 11019 11020 retval = 0; 11021 11022 mtx_assert(&lun->lun_lock, MA_OWNED); 11023 11024 /* 11025 * If this shelf is a secondary shelf controller, we have to reject 11026 * any media access commands. 11027 */ 11028#if 0 11029 /* No longer needed for HA */ 11030 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11031 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11032 ctl_set_lun_standby(ctsio); 11033 retval = 1; 11034 goto bailout; 11035 } 11036#endif 11037 11038 /* 11039 * Check for a reservation conflict. If this command isn't allowed 11040 * even on reserved LUNs, and if this initiator isn't the one who 11041 * reserved us, reject the command with a reservation conflict. 11042 */ 11043 if ((lun->flags & CTL_LUN_RESERVED) 11044 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11045 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11046 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11047 || (ctsio->io_hdr.nexus.targ_target.id != 11048 lun->rsv_nexus.targ_target.id)) { 11049 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11050 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11051 retval = 1; 11052 goto bailout; 11053 } 11054 } 11055 11056 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11057 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11058 uint32_t residx; 11059 11060 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11061 /* 11062 * if we aren't registered or it's a res holder type 11063 * reservation and this isn't the res holder then set a 11064 * conflict. 11065 * NOTE: Commands which might be allowed on write exclusive 11066 * type reservations are checked in the particular command 11067 * for a conflict. Read and SSU are the only ones. 11068 */ 11069 if (!lun->per_res[residx].registered 11070 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11071 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11072 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11073 retval = 1; 11074 goto bailout; 11075 } 11076 11077 } 11078 11079 if ((lun->flags & CTL_LUN_OFFLINE) 11080 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11081 ctl_set_lun_not_ready(ctsio); 11082 retval = 1; 11083 goto bailout; 11084 } 11085 11086 /* 11087 * If the LUN is stopped, see if this particular command is allowed 11088 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11089 */ 11090 if ((lun->flags & CTL_LUN_STOPPED) 11091 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11092 /* "Logical unit not ready, initializing cmd. required" */ 11093 ctl_set_lun_stopped(ctsio); 11094 retval = 1; 11095 goto bailout; 11096 } 11097 11098 if ((lun->flags & CTL_LUN_INOPERABLE) 11099 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11100 /* "Medium format corrupted" */ 11101 ctl_set_medium_format_corrupted(ctsio); 11102 retval = 1; 11103 goto bailout; 11104 } 11105 11106bailout: 11107 return (retval); 11108 11109} 11110 11111static void 11112ctl_failover_io(union ctl_io *io, int have_lock) 11113{ 11114 ctl_set_busy(&io->scsiio); 11115 ctl_done(io); 11116} 11117 11118static void 11119ctl_failover(void) 11120{ 11121 struct ctl_lun *lun; 11122 struct ctl_softc *ctl_softc; 11123 union ctl_io *next_io, *pending_io; 11124 union ctl_io *io; 11125 int lun_idx; 11126 int i; 11127 11128 ctl_softc = control_softc; 11129 11130 mtx_lock(&ctl_softc->ctl_lock); 11131 /* 11132 * Remove any cmds from the other SC from the rtr queue. These 11133 * will obviously only be for LUNs for which we're the primary. 11134 * We can't send status or get/send data for these commands. 11135 * Since they haven't been executed yet, we can just remove them. 11136 * We'll either abort them or delete them below, depending on 11137 * which HA mode we're in. 11138 */ 11139#ifdef notyet 11140 mtx_lock(&ctl_softc->queue_lock); 11141 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11142 io != NULL; io = next_io) { 11143 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11144 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11145 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11146 ctl_io_hdr, links); 11147 } 11148 mtx_unlock(&ctl_softc->queue_lock); 11149#endif 11150 11151 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11152 lun = ctl_softc->ctl_luns[lun_idx]; 11153 if (lun==NULL) 11154 continue; 11155 11156 /* 11157 * Processor LUNs are primary on both sides. 11158 * XXX will this always be true? 11159 */ 11160 if (lun->be_lun->lun_type == T_PROCESSOR) 11161 continue; 11162 11163 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11164 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11165 printf("FAILOVER: primary lun %d\n", lun_idx); 11166 /* 11167 * Remove all commands from the other SC. First from the 11168 * blocked queue then from the ooa queue. Once we have 11169 * removed them. Call ctl_check_blocked to see if there 11170 * is anything that can run. 11171 */ 11172 for (io = (union ctl_io *)TAILQ_FIRST( 11173 &lun->blocked_queue); io != NULL; io = next_io) { 11174 11175 next_io = (union ctl_io *)TAILQ_NEXT( 11176 &io->io_hdr, blocked_links); 11177 11178 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11179 TAILQ_REMOVE(&lun->blocked_queue, 11180 &io->io_hdr,blocked_links); 11181 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11182 TAILQ_REMOVE(&lun->ooa_queue, 11183 &io->io_hdr, ooa_links); 11184 11185 ctl_free_io(io); 11186 } 11187 } 11188 11189 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11190 io != NULL; io = next_io) { 11191 11192 next_io = (union ctl_io *)TAILQ_NEXT( 11193 &io->io_hdr, ooa_links); 11194 11195 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11196 11197 TAILQ_REMOVE(&lun->ooa_queue, 11198 &io->io_hdr, 11199 ooa_links); 11200 11201 ctl_free_io(io); 11202 } 11203 } 11204 ctl_check_blocked(lun); 11205 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11206 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11207 11208 printf("FAILOVER: primary lun %d\n", lun_idx); 11209 /* 11210 * Abort all commands from the other SC. We can't 11211 * send status back for them now. These should get 11212 * cleaned up when they are completed or come out 11213 * for a datamove operation. 11214 */ 11215 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11216 io != NULL; io = next_io) { 11217 next_io = (union ctl_io *)TAILQ_NEXT( 11218 &io->io_hdr, ooa_links); 11219 11220 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11221 io->io_hdr.flags |= CTL_FLAG_ABORT; 11222 } 11223 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11224 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11225 11226 printf("FAILOVER: secondary lun %d\n", lun_idx); 11227 11228 lun->flags |= CTL_LUN_PRIMARY_SC; 11229 11230 /* 11231 * We send all I/O that was sent to this controller 11232 * and redirected to the other side back with 11233 * busy status, and have the initiator retry it. 11234 * Figuring out how much data has been transferred, 11235 * etc. and picking up where we left off would be 11236 * very tricky. 11237 * 11238 * XXX KDM need to remove I/O from the blocked 11239 * queue as well! 11240 */ 11241 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11242 &lun->ooa_queue); pending_io != NULL; 11243 pending_io = next_io) { 11244 11245 next_io = (union ctl_io *)TAILQ_NEXT( 11246 &pending_io->io_hdr, ooa_links); 11247 11248 pending_io->io_hdr.flags &= 11249 ~CTL_FLAG_SENT_2OTHER_SC; 11250 11251 if (pending_io->io_hdr.flags & 11252 CTL_FLAG_IO_ACTIVE) { 11253 pending_io->io_hdr.flags |= 11254 CTL_FLAG_FAILOVER; 11255 } else { 11256 ctl_set_busy(&pending_io->scsiio); 11257 ctl_done(pending_io); 11258 } 11259 } 11260 11261 /* 11262 * Build Unit Attention 11263 */ 11264 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11265 lun->pending_sense[i].ua_pending |= 11266 CTL_UA_ASYM_ACC_CHANGE; 11267 } 11268 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11269 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11270 printf("FAILOVER: secondary lun %d\n", lun_idx); 11271 /* 11272 * if the first io on the OOA is not on the RtR queue 11273 * add it. 11274 */ 11275 lun->flags |= CTL_LUN_PRIMARY_SC; 11276 11277 pending_io = (union ctl_io *)TAILQ_FIRST( 11278 &lun->ooa_queue); 11279 if (pending_io==NULL) { 11280 printf("Nothing on OOA queue\n"); 11281 continue; 11282 } 11283 11284 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11285 if ((pending_io->io_hdr.flags & 11286 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11287 pending_io->io_hdr.flags |= 11288 CTL_FLAG_IS_WAS_ON_RTR; 11289 ctl_enqueue_rtr(pending_io); 11290 } 11291#if 0 11292 else 11293 { 11294 printf("Tag 0x%04x is running\n", 11295 pending_io->scsiio.tag_num); 11296 } 11297#endif 11298 11299 next_io = (union ctl_io *)TAILQ_NEXT( 11300 &pending_io->io_hdr, ooa_links); 11301 for (pending_io=next_io; pending_io != NULL; 11302 pending_io = next_io) { 11303 pending_io->io_hdr.flags &= 11304 ~CTL_FLAG_SENT_2OTHER_SC; 11305 next_io = (union ctl_io *)TAILQ_NEXT( 11306 &pending_io->io_hdr, ooa_links); 11307 if (pending_io->io_hdr.flags & 11308 CTL_FLAG_IS_WAS_ON_RTR) { 11309#if 0 11310 printf("Tag 0x%04x is running\n", 11311 pending_io->scsiio.tag_num); 11312#endif 11313 continue; 11314 } 11315 11316 switch (ctl_check_ooa(lun, pending_io, 11317 (union ctl_io *)TAILQ_PREV( 11318 &pending_io->io_hdr, ctl_ooaq, 11319 ooa_links))) { 11320 11321 case CTL_ACTION_BLOCK: 11322 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11323 &pending_io->io_hdr, 11324 blocked_links); 11325 pending_io->io_hdr.flags |= 11326 CTL_FLAG_BLOCKED; 11327 break; 11328 case CTL_ACTION_PASS: 11329 case CTL_ACTION_SKIP: 11330 pending_io->io_hdr.flags |= 11331 CTL_FLAG_IS_WAS_ON_RTR; 11332 ctl_enqueue_rtr(pending_io); 11333 break; 11334 case CTL_ACTION_OVERLAP: 11335 ctl_set_overlapped_cmd( 11336 (struct ctl_scsiio *)pending_io); 11337 ctl_done(pending_io); 11338 break; 11339 case CTL_ACTION_OVERLAP_TAG: 11340 ctl_set_overlapped_tag( 11341 (struct ctl_scsiio *)pending_io, 11342 pending_io->scsiio.tag_num & 0xff); 11343 ctl_done(pending_io); 11344 break; 11345 case CTL_ACTION_ERROR: 11346 default: 11347 ctl_set_internal_failure( 11348 (struct ctl_scsiio *)pending_io, 11349 0, // sks_valid 11350 0); //retry count 11351 ctl_done(pending_io); 11352 break; 11353 } 11354 } 11355 11356 /* 11357 * Build Unit Attention 11358 */ 11359 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11360 lun->pending_sense[i].ua_pending |= 11361 CTL_UA_ASYM_ACC_CHANGE; 11362 } 11363 } else { 11364 panic("Unhandled HA mode failover, LUN flags = %#x, " 11365 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11366 } 11367 } 11368 ctl_pause_rtr = 0; 11369 mtx_unlock(&ctl_softc->ctl_lock); 11370} 11371 11372static int 11373ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11374{ 11375 struct ctl_lun *lun; 11376 const struct ctl_cmd_entry *entry; 11377 uint32_t initidx, targ_lun; 11378 int retval; 11379 11380 retval = 0; 11381 11382 lun = NULL; 11383 11384 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11385 if ((targ_lun < CTL_MAX_LUNS) 11386 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11387 lun = ctl_softc->ctl_luns[targ_lun]; 11388 /* 11389 * If the LUN is invalid, pretend that it doesn't exist. 11390 * It will go away as soon as all pending I/O has been 11391 * completed. 11392 */ 11393 if (lun->flags & CTL_LUN_DISABLED) { 11394 lun = NULL; 11395 } else { 11396 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11397 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11398 lun->be_lun; 11399 if (lun->be_lun->lun_type == T_PROCESSOR) { 11400 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11401 } 11402 11403 /* 11404 * Every I/O goes into the OOA queue for a 11405 * particular LUN, and stays there until completion. 11406 */ 11407 mtx_lock(&lun->lun_lock); 11408 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11409 ooa_links); 11410 } 11411 } else { 11412 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11413 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11414 } 11415 11416 /* Get command entry and return error if it is unsuppotyed. */ 11417 entry = ctl_validate_command(ctsio); 11418 if (entry == NULL) { 11419 if (lun) 11420 mtx_unlock(&lun->lun_lock); 11421 return (retval); 11422 } 11423 11424 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11425 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11426 11427 /* 11428 * Check to see whether we can send this command to LUNs that don't 11429 * exist. This should pretty much only be the case for inquiry 11430 * and request sense. Further checks, below, really require having 11431 * a LUN, so we can't really check the command anymore. Just put 11432 * it on the rtr queue. 11433 */ 11434 if (lun == NULL) { 11435 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11436 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11437 ctl_enqueue_rtr((union ctl_io *)ctsio); 11438 return (retval); 11439 } 11440 11441 ctl_set_unsupported_lun(ctsio); 11442 ctl_done((union ctl_io *)ctsio); 11443 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11444 return (retval); 11445 } else { 11446 /* 11447 * Make sure we support this particular command on this LUN. 11448 * e.g., we don't support writes to the control LUN. 11449 */ 11450 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11451 mtx_unlock(&lun->lun_lock); 11452 ctl_set_invalid_opcode(ctsio); 11453 ctl_done((union ctl_io *)ctsio); 11454 return (retval); 11455 } 11456 } 11457 11458 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11459 11460 /* 11461 * If we've got a request sense, it'll clear the contingent 11462 * allegiance condition. Otherwise, if we have a CA condition for 11463 * this initiator, clear it, because it sent down a command other 11464 * than request sense. 11465 */ 11466 if ((ctsio->cdb[0] != REQUEST_SENSE) 11467 && (ctl_is_set(lun->have_ca, initidx))) 11468 ctl_clear_mask(lun->have_ca, initidx); 11469 11470 /* 11471 * If the command has this flag set, it handles its own unit 11472 * attention reporting, we shouldn't do anything. Otherwise we 11473 * check for any pending unit attentions, and send them back to the 11474 * initiator. We only do this when a command initially comes in, 11475 * not when we pull it off the blocked queue. 11476 * 11477 * According to SAM-3, section 5.3.2, the order that things get 11478 * presented back to the host is basically unit attentions caused 11479 * by some sort of reset event, busy status, reservation conflicts 11480 * or task set full, and finally any other status. 11481 * 11482 * One issue here is that some of the unit attentions we report 11483 * don't fall into the "reset" category (e.g. "reported luns data 11484 * has changed"). So reporting it here, before the reservation 11485 * check, may be technically wrong. I guess the only thing to do 11486 * would be to check for and report the reset events here, and then 11487 * check for the other unit attention types after we check for a 11488 * reservation conflict. 11489 * 11490 * XXX KDM need to fix this 11491 */ 11492 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11493 ctl_ua_type ua_type; 11494 11495 ua_type = lun->pending_sense[initidx].ua_pending; 11496 if (ua_type != CTL_UA_NONE) { 11497 scsi_sense_data_type sense_format; 11498 11499 if (lun != NULL) 11500 sense_format = (lun->flags & 11501 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11502 SSD_TYPE_FIXED; 11503 else 11504 sense_format = SSD_TYPE_FIXED; 11505 11506 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11507 sense_format); 11508 if (ua_type != CTL_UA_NONE) { 11509 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11510 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11511 CTL_AUTOSENSE; 11512 ctsio->sense_len = SSD_FULL_SIZE; 11513 lun->pending_sense[initidx].ua_pending &= 11514 ~ua_type; 11515 mtx_unlock(&lun->lun_lock); 11516 ctl_done((union ctl_io *)ctsio); 11517 return (retval); 11518 } 11519 } 11520 } 11521 11522 11523 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11524 mtx_unlock(&lun->lun_lock); 11525 ctl_done((union ctl_io *)ctsio); 11526 return (retval); 11527 } 11528 11529 /* 11530 * XXX CHD this is where we want to send IO to other side if 11531 * this LUN is secondary on this SC. We will need to make a copy 11532 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11533 * the copy we send as FROM_OTHER. 11534 * We also need to stuff the address of the original IO so we can 11535 * find it easily. Something similar will need be done on the other 11536 * side so when we are done we can find the copy. 11537 */ 11538 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11539 union ctl_ha_msg msg_info; 11540 int isc_retval; 11541 11542 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11543 11544 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11545 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11546#if 0 11547 printf("1. ctsio %p\n", ctsio); 11548#endif 11549 msg_info.hdr.serializing_sc = NULL; 11550 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11551 msg_info.scsi.tag_num = ctsio->tag_num; 11552 msg_info.scsi.tag_type = ctsio->tag_type; 11553 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11554 11555 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11556 11557 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11558 (void *)&msg_info, sizeof(msg_info), 0)) > 11559 CTL_HA_STATUS_SUCCESS) { 11560 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11561 isc_retval); 11562 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11563 } else { 11564#if 0 11565 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11566#endif 11567 } 11568 11569 /* 11570 * XXX KDM this I/O is off the incoming queue, but hasn't 11571 * been inserted on any other queue. We may need to come 11572 * up with a holding queue while we wait for serialization 11573 * so that we have an idea of what we're waiting for from 11574 * the other side. 11575 */ 11576 mtx_unlock(&lun->lun_lock); 11577 return (retval); 11578 } 11579 11580 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11581 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11582 ctl_ooaq, ooa_links))) { 11583 case CTL_ACTION_BLOCK: 11584 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11585 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11586 blocked_links); 11587 mtx_unlock(&lun->lun_lock); 11588 return (retval); 11589 case CTL_ACTION_PASS: 11590 case CTL_ACTION_SKIP: 11591 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11592 mtx_unlock(&lun->lun_lock); 11593 ctl_enqueue_rtr((union ctl_io *)ctsio); 11594 break; 11595 case CTL_ACTION_OVERLAP: 11596 mtx_unlock(&lun->lun_lock); 11597 ctl_set_overlapped_cmd(ctsio); 11598 ctl_done((union ctl_io *)ctsio); 11599 break; 11600 case CTL_ACTION_OVERLAP_TAG: 11601 mtx_unlock(&lun->lun_lock); 11602 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11603 ctl_done((union ctl_io *)ctsio); 11604 break; 11605 case CTL_ACTION_ERROR: 11606 default: 11607 mtx_unlock(&lun->lun_lock); 11608 ctl_set_internal_failure(ctsio, 11609 /*sks_valid*/ 0, 11610 /*retry_count*/ 0); 11611 ctl_done((union ctl_io *)ctsio); 11612 break; 11613 } 11614 return (retval); 11615} 11616 11617const struct ctl_cmd_entry * 11618ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11619{ 11620 const struct ctl_cmd_entry *entry; 11621 int service_action; 11622 11623 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11624 if (entry->flags & CTL_CMD_FLAG_SA5) { 11625 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11626 entry = &((const struct ctl_cmd_entry *) 11627 entry->execute)[service_action]; 11628 } 11629 return (entry); 11630} 11631 11632const struct ctl_cmd_entry * 11633ctl_validate_command(struct ctl_scsiio *ctsio) 11634{ 11635 const struct ctl_cmd_entry *entry; 11636 int i; 11637 uint8_t diff; 11638 11639 entry = ctl_get_cmd_entry(ctsio); 11640 if (entry->execute == NULL) { 11641 ctl_set_invalid_opcode(ctsio); 11642 ctl_done((union ctl_io *)ctsio); 11643 return (NULL); 11644 } 11645 KASSERT(entry->length > 0, 11646 ("Not defined length for command 0x%02x/0x%02x", 11647 ctsio->cdb[0], ctsio->cdb[1])); 11648 for (i = 1; i < entry->length; i++) { 11649 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11650 if (diff == 0) 11651 continue; 11652 ctl_set_invalid_field(ctsio, 11653 /*sks_valid*/ 1, 11654 /*command*/ 1, 11655 /*field*/ i, 11656 /*bit_valid*/ 1, 11657 /*bit*/ fls(diff) - 1); 11658 ctl_done((union ctl_io *)ctsio); 11659 return (NULL); 11660 } 11661 return (entry); 11662} 11663 11664static int 11665ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11666{ 11667 11668 switch (lun_type) { 11669 case T_PROCESSOR: 11670 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11671 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11672 return (0); 11673 break; 11674 case T_DIRECT: 11675 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11676 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11677 return (0); 11678 break; 11679 default: 11680 return (0); 11681 } 11682 return (1); 11683} 11684 11685static int 11686ctl_scsiio(struct ctl_scsiio *ctsio) 11687{ 11688 int retval; 11689 const struct ctl_cmd_entry *entry; 11690 11691 retval = CTL_RETVAL_COMPLETE; 11692 11693 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11694 11695 entry = ctl_get_cmd_entry(ctsio); 11696 11697 /* 11698 * If this I/O has been aborted, just send it straight to 11699 * ctl_done() without executing it. 11700 */ 11701 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11702 ctl_done((union ctl_io *)ctsio); 11703 goto bailout; 11704 } 11705 11706 /* 11707 * All the checks should have been handled by ctl_scsiio_precheck(). 11708 * We should be clear now to just execute the I/O. 11709 */ 11710 retval = entry->execute(ctsio); 11711 11712bailout: 11713 return (retval); 11714} 11715 11716/* 11717 * Since we only implement one target right now, a bus reset simply resets 11718 * our single target. 11719 */ 11720static int 11721ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11722{ 11723 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11724} 11725 11726static int 11727ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11728 ctl_ua_type ua_type) 11729{ 11730 struct ctl_lun *lun; 11731 int retval; 11732 11733 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11734 union ctl_ha_msg msg_info; 11735 11736 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11737 msg_info.hdr.nexus = io->io_hdr.nexus; 11738 if (ua_type==CTL_UA_TARG_RESET) 11739 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11740 else 11741 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11742 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11743 msg_info.hdr.original_sc = NULL; 11744 msg_info.hdr.serializing_sc = NULL; 11745 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11746 (void *)&msg_info, sizeof(msg_info), 0)) { 11747 } 11748 } 11749 retval = 0; 11750 11751 mtx_lock(&ctl_softc->ctl_lock); 11752 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11753 retval += ctl_lun_reset(lun, io, ua_type); 11754 mtx_unlock(&ctl_softc->ctl_lock); 11755 11756 return (retval); 11757} 11758 11759/* 11760 * The LUN should always be set. The I/O is optional, and is used to 11761 * distinguish between I/Os sent by this initiator, and by other 11762 * initiators. We set unit attention for initiators other than this one. 11763 * SAM-3 is vague on this point. It does say that a unit attention should 11764 * be established for other initiators when a LUN is reset (see section 11765 * 5.7.3), but it doesn't specifically say that the unit attention should 11766 * be established for this particular initiator when a LUN is reset. Here 11767 * is the relevant text, from SAM-3 rev 8: 11768 * 11769 * 5.7.2 When a SCSI initiator port aborts its own tasks 11770 * 11771 * When a SCSI initiator port causes its own task(s) to be aborted, no 11772 * notification that the task(s) have been aborted shall be returned to 11773 * the SCSI initiator port other than the completion response for the 11774 * command or task management function action that caused the task(s) to 11775 * be aborted and notification(s) associated with related effects of the 11776 * action (e.g., a reset unit attention condition). 11777 * 11778 * XXX KDM for now, we're setting unit attention for all initiators. 11779 */ 11780static int 11781ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11782{ 11783 union ctl_io *xio; 11784#if 0 11785 uint32_t initindex; 11786#endif 11787 int i; 11788 11789 mtx_lock(&lun->lun_lock); 11790 /* 11791 * Run through the OOA queue and abort each I/O. 11792 */ 11793#if 0 11794 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11795#endif 11796 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11797 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11798 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11799 } 11800 11801 /* 11802 * This version sets unit attention for every 11803 */ 11804#if 0 11805 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11806 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11807 if (initindex == i) 11808 continue; 11809 lun->pending_sense[i].ua_pending |= ua_type; 11810 } 11811#endif 11812 11813 /* 11814 * A reset (any kind, really) clears reservations established with 11815 * RESERVE/RELEASE. It does not clear reservations established 11816 * with PERSISTENT RESERVE OUT, but we don't support that at the 11817 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11818 * reservations made with the RESERVE/RELEASE commands, because 11819 * those commands are obsolete in SPC-3. 11820 */ 11821 lun->flags &= ~CTL_LUN_RESERVED; 11822 11823 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11824 ctl_clear_mask(lun->have_ca, i); 11825 lun->pending_sense[i].ua_pending |= ua_type; 11826 } 11827 mtx_unlock(&lun->lun_lock); 11828 11829 return (0); 11830} 11831 11832static int 11833ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11834 int other_sc) 11835{ 11836 union ctl_io *xio; 11837 int found; 11838 11839 mtx_assert(&lun->lun_lock, MA_OWNED); 11840 11841 /* 11842 * Run through the OOA queue and attempt to find the given I/O. 11843 * The target port, initiator ID, tag type and tag number have to 11844 * match the values that we got from the initiator. If we have an 11845 * untagged command to abort, simply abort the first untagged command 11846 * we come to. We only allow one untagged command at a time of course. 11847 */ 11848 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11849 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11850 11851 if ((targ_port == xio->io_hdr.nexus.targ_port) && 11852 (init_id == xio->io_hdr.nexus.initid.id)) { 11853 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11854 found = 1; 11855 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11856 union ctl_ha_msg msg_info; 11857 11858 msg_info.hdr.nexus = xio->io_hdr.nexus; 11859 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11860 msg_info.task.tag_num = xio->scsiio.tag_num; 11861 msg_info.task.tag_type = xio->scsiio.tag_type; 11862 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11863 msg_info.hdr.original_sc = NULL; 11864 msg_info.hdr.serializing_sc = NULL; 11865 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11866 (void *)&msg_info, sizeof(msg_info), 0); 11867 } 11868 } 11869 } 11870 return (found); 11871} 11872 11873static int 11874ctl_abort_task_set(union ctl_io *io) 11875{ 11876 struct ctl_softc *softc = control_softc; 11877 struct ctl_lun *lun; 11878 uint32_t targ_lun; 11879 11880 /* 11881 * Look up the LUN. 11882 */ 11883 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11884 mtx_lock(&softc->ctl_lock); 11885 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11886 lun = softc->ctl_luns[targ_lun]; 11887 else { 11888 mtx_unlock(&softc->ctl_lock); 11889 return (1); 11890 } 11891 11892 mtx_lock(&lun->lun_lock); 11893 mtx_unlock(&softc->ctl_lock); 11894 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11895 io->io_hdr.nexus.initid.id, 11896 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11897 mtx_unlock(&lun->lun_lock); 11898 return (0); 11899} 11900 11901static int 11902ctl_i_t_nexus_reset(union ctl_io *io) 11903{ 11904 struct ctl_softc *softc = control_softc; 11905 struct ctl_lun *lun; 11906 uint32_t initindex; 11907 11908 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11909 mtx_lock(&softc->ctl_lock); 11910 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11911 mtx_lock(&lun->lun_lock); 11912 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11913 io->io_hdr.nexus.initid.id, 11914 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11915 ctl_clear_mask(lun->have_ca, initindex); 11916 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS; 11917 mtx_unlock(&lun->lun_lock); 11918 } 11919 mtx_unlock(&softc->ctl_lock); 11920 return (0); 11921} 11922 11923static int 11924ctl_abort_task(union ctl_io *io) 11925{ 11926 union ctl_io *xio; 11927 struct ctl_lun *lun; 11928 struct ctl_softc *ctl_softc; 11929#if 0 11930 struct sbuf sb; 11931 char printbuf[128]; 11932#endif 11933 int found; 11934 uint32_t targ_lun; 11935 11936 ctl_softc = control_softc; 11937 found = 0; 11938 11939 /* 11940 * Look up the LUN. 11941 */ 11942 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11943 mtx_lock(&ctl_softc->ctl_lock); 11944 if ((targ_lun < CTL_MAX_LUNS) 11945 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11946 lun = ctl_softc->ctl_luns[targ_lun]; 11947 else { 11948 mtx_unlock(&ctl_softc->ctl_lock); 11949 goto bailout; 11950 } 11951 11952#if 0 11953 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11954 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11955#endif 11956 11957 mtx_lock(&lun->lun_lock); 11958 mtx_unlock(&ctl_softc->ctl_lock); 11959 /* 11960 * Run through the OOA queue and attempt to find the given I/O. 11961 * The target port, initiator ID, tag type and tag number have to 11962 * match the values that we got from the initiator. If we have an 11963 * untagged command to abort, simply abort the first untagged command 11964 * we come to. We only allow one untagged command at a time of course. 11965 */ 11966#if 0 11967 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11968#endif 11969 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11970 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11971#if 0 11972 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11973 11974 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11975 lun->lun, xio->scsiio.tag_num, 11976 xio->scsiio.tag_type, 11977 (xio->io_hdr.blocked_links.tqe_prev 11978 == NULL) ? "" : " BLOCKED", 11979 (xio->io_hdr.flags & 11980 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11981 (xio->io_hdr.flags & 11982 CTL_FLAG_ABORT) ? " ABORT" : "", 11983 (xio->io_hdr.flags & 11984 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11985 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11986 sbuf_finish(&sb); 11987 printf("%s\n", sbuf_data(&sb)); 11988#endif 11989 11990 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 11991 && (xio->io_hdr.nexus.initid.id == 11992 io->io_hdr.nexus.initid.id)) { 11993 /* 11994 * If the abort says that the task is untagged, the 11995 * task in the queue must be untagged. Otherwise, 11996 * we just check to see whether the tag numbers 11997 * match. This is because the QLogic firmware 11998 * doesn't pass back the tag type in an abort 11999 * request. 12000 */ 12001#if 0 12002 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12003 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12004 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12005#endif 12006 /* 12007 * XXX KDM we've got problems with FC, because it 12008 * doesn't send down a tag type with aborts. So we 12009 * can only really go by the tag number... 12010 * This may cause problems with parallel SCSI. 12011 * Need to figure that out!! 12012 */ 12013 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12014 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12015 found = 1; 12016 if ((io->io_hdr.flags & 12017 CTL_FLAG_FROM_OTHER_SC) == 0 && 12018 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12019 union ctl_ha_msg msg_info; 12020 12021 io->io_hdr.flags |= 12022 CTL_FLAG_SENT_2OTHER_SC; 12023 msg_info.hdr.nexus = io->io_hdr.nexus; 12024 msg_info.task.task_action = 12025 CTL_TASK_ABORT_TASK; 12026 msg_info.task.tag_num = 12027 io->taskio.tag_num; 12028 msg_info.task.tag_type = 12029 io->taskio.tag_type; 12030 msg_info.hdr.msg_type = 12031 CTL_MSG_MANAGE_TASKS; 12032 msg_info.hdr.original_sc = NULL; 12033 msg_info.hdr.serializing_sc = NULL; 12034#if 0 12035 printf("Sent Abort to other side\n"); 12036#endif 12037 if (CTL_HA_STATUS_SUCCESS != 12038 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12039 (void *)&msg_info, 12040 sizeof(msg_info), 0)) { 12041 } 12042 } 12043#if 0 12044 printf("ctl_abort_task: found I/O to abort\n"); 12045#endif 12046 break; 12047 } 12048 } 12049 } 12050 mtx_unlock(&lun->lun_lock); 12051 12052bailout: 12053 12054 if (found == 0) { 12055 /* 12056 * This isn't really an error. It's entirely possible for 12057 * the abort and command completion to cross on the wire. 12058 * This is more of an informative/diagnostic error. 12059 */ 12060#if 0 12061 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12062 "%d:%d:%d:%d tag %d type %d\n", 12063 io->io_hdr.nexus.initid.id, 12064 io->io_hdr.nexus.targ_port, 12065 io->io_hdr.nexus.targ_target.id, 12066 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12067 io->taskio.tag_type); 12068#endif 12069 return (1); 12070 } else 12071 return (0); 12072} 12073 12074static void 12075ctl_run_task(union ctl_io *io) 12076{ 12077 struct ctl_softc *ctl_softc; 12078 int retval; 12079 const char *task_desc; 12080 12081 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12082 12083 ctl_softc = control_softc; 12084 retval = 0; 12085 12086 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12087 ("ctl_run_task: Unextected io_type %d\n", 12088 io->io_hdr.io_type)); 12089 12090 task_desc = ctl_scsi_task_string(&io->taskio); 12091 if (task_desc != NULL) { 12092#ifdef NEEDTOPORT 12093 csevent_log(CSC_CTL | CSC_SHELF_SW | 12094 CTL_TASK_REPORT, 12095 csevent_LogType_Trace, 12096 csevent_Severity_Information, 12097 csevent_AlertLevel_Green, 12098 csevent_FRU_Firmware, 12099 csevent_FRU_Unknown, 12100 "CTL: received task: %s",task_desc); 12101#endif 12102 } else { 12103#ifdef NEEDTOPORT 12104 csevent_log(CSC_CTL | CSC_SHELF_SW | 12105 CTL_TASK_REPORT, 12106 csevent_LogType_Trace, 12107 csevent_Severity_Information, 12108 csevent_AlertLevel_Green, 12109 csevent_FRU_Firmware, 12110 csevent_FRU_Unknown, 12111 "CTL: received unknown task " 12112 "type: %d (%#x)", 12113 io->taskio.task_action, 12114 io->taskio.task_action); 12115#endif 12116 } 12117 switch (io->taskio.task_action) { 12118 case CTL_TASK_ABORT_TASK: 12119 retval = ctl_abort_task(io); 12120 break; 12121 case CTL_TASK_ABORT_TASK_SET: 12122 retval = ctl_abort_task_set(io); 12123 break; 12124 case CTL_TASK_CLEAR_ACA: 12125 break; 12126 case CTL_TASK_CLEAR_TASK_SET: 12127 break; 12128 case CTL_TASK_I_T_NEXUS_RESET: 12129 retval = ctl_i_t_nexus_reset(io); 12130 break; 12131 case CTL_TASK_LUN_RESET: { 12132 struct ctl_lun *lun; 12133 uint32_t targ_lun; 12134 int retval; 12135 12136 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12137 mtx_lock(&ctl_softc->ctl_lock); 12138 if ((targ_lun < CTL_MAX_LUNS) 12139 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12140 lun = ctl_softc->ctl_luns[targ_lun]; 12141 else { 12142 mtx_unlock(&ctl_softc->ctl_lock); 12143 retval = 1; 12144 break; 12145 } 12146 12147 if (!(io->io_hdr.flags & 12148 CTL_FLAG_FROM_OTHER_SC)) { 12149 union ctl_ha_msg msg_info; 12150 12151 io->io_hdr.flags |= 12152 CTL_FLAG_SENT_2OTHER_SC; 12153 msg_info.hdr.msg_type = 12154 CTL_MSG_MANAGE_TASKS; 12155 msg_info.hdr.nexus = io->io_hdr.nexus; 12156 msg_info.task.task_action = 12157 CTL_TASK_LUN_RESET; 12158 msg_info.hdr.original_sc = NULL; 12159 msg_info.hdr.serializing_sc = NULL; 12160 if (CTL_HA_STATUS_SUCCESS != 12161 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12162 (void *)&msg_info, 12163 sizeof(msg_info), 0)) { 12164 } 12165 } 12166 12167 retval = ctl_lun_reset(lun, io, 12168 CTL_UA_LUN_RESET); 12169 mtx_unlock(&ctl_softc->ctl_lock); 12170 break; 12171 } 12172 case CTL_TASK_TARGET_RESET: 12173 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12174 break; 12175 case CTL_TASK_BUS_RESET: 12176 retval = ctl_bus_reset(ctl_softc, io); 12177 break; 12178 case CTL_TASK_PORT_LOGIN: 12179 break; 12180 case CTL_TASK_PORT_LOGOUT: 12181 break; 12182 default: 12183 printf("ctl_run_task: got unknown task management event %d\n", 12184 io->taskio.task_action); 12185 break; 12186 } 12187 if (retval == 0) 12188 io->io_hdr.status = CTL_SUCCESS; 12189 else 12190 io->io_hdr.status = CTL_ERROR; 12191 12192 /* 12193 * This will queue this I/O to the done queue, but the 12194 * work thread won't be able to process it until we 12195 * return and the lock is released. 12196 */ 12197 ctl_done(io); 12198} 12199 12200/* 12201 * For HA operation. Handle commands that come in from the other 12202 * controller. 12203 */ 12204static void 12205ctl_handle_isc(union ctl_io *io) 12206{ 12207 int free_io; 12208 struct ctl_lun *lun; 12209 struct ctl_softc *ctl_softc; 12210 uint32_t targ_lun; 12211 12212 ctl_softc = control_softc; 12213 12214 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12215 lun = ctl_softc->ctl_luns[targ_lun]; 12216 12217 switch (io->io_hdr.msg_type) { 12218 case CTL_MSG_SERIALIZE: 12219 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12220 break; 12221 case CTL_MSG_R2R: { 12222 const struct ctl_cmd_entry *entry; 12223 12224 /* 12225 * This is only used in SER_ONLY mode. 12226 */ 12227 free_io = 0; 12228 entry = ctl_get_cmd_entry(&io->scsiio); 12229 mtx_lock(&lun->lun_lock); 12230 if (ctl_scsiio_lun_check(ctl_softc, lun, 12231 entry, (struct ctl_scsiio *)io) != 0) { 12232 mtx_unlock(&lun->lun_lock); 12233 ctl_done(io); 12234 break; 12235 } 12236 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12237 mtx_unlock(&lun->lun_lock); 12238 ctl_enqueue_rtr(io); 12239 break; 12240 } 12241 case CTL_MSG_FINISH_IO: 12242 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12243 free_io = 0; 12244 ctl_done(io); 12245 } else { 12246 free_io = 1; 12247 mtx_lock(&lun->lun_lock); 12248 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12249 ooa_links); 12250 ctl_check_blocked(lun); 12251 mtx_unlock(&lun->lun_lock); 12252 } 12253 break; 12254 case CTL_MSG_PERS_ACTION: 12255 ctl_hndl_per_res_out_on_other_sc( 12256 (union ctl_ha_msg *)&io->presio.pr_msg); 12257 free_io = 1; 12258 break; 12259 case CTL_MSG_BAD_JUJU: 12260 free_io = 0; 12261 ctl_done(io); 12262 break; 12263 case CTL_MSG_DATAMOVE: 12264 /* Only used in XFER mode */ 12265 free_io = 0; 12266 ctl_datamove_remote(io); 12267 break; 12268 case CTL_MSG_DATAMOVE_DONE: 12269 /* Only used in XFER mode */ 12270 free_io = 0; 12271 io->scsiio.be_move_done(io); 12272 break; 12273 default: 12274 free_io = 1; 12275 printf("%s: Invalid message type %d\n", 12276 __func__, io->io_hdr.msg_type); 12277 break; 12278 } 12279 if (free_io) 12280 ctl_free_io(io); 12281 12282} 12283 12284 12285/* 12286 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12287 * there is no match. 12288 */ 12289static ctl_lun_error_pattern 12290ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12291{ 12292 const struct ctl_cmd_entry *entry; 12293 ctl_lun_error_pattern filtered_pattern, pattern; 12294 12295 pattern = desc->error_pattern; 12296 12297 /* 12298 * XXX KDM we need more data passed into this function to match a 12299 * custom pattern, and we actually need to implement custom pattern 12300 * matching. 12301 */ 12302 if (pattern & CTL_LUN_PAT_CMD) 12303 return (CTL_LUN_PAT_CMD); 12304 12305 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12306 return (CTL_LUN_PAT_ANY); 12307 12308 entry = ctl_get_cmd_entry(ctsio); 12309 12310 filtered_pattern = entry->pattern & pattern; 12311 12312 /* 12313 * If the user requested specific flags in the pattern (e.g. 12314 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12315 * flags. 12316 * 12317 * If the user did not specify any flags, it doesn't matter whether 12318 * or not the command supports the flags. 12319 */ 12320 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12321 (pattern & ~CTL_LUN_PAT_MASK)) 12322 return (CTL_LUN_PAT_NONE); 12323 12324 /* 12325 * If the user asked for a range check, see if the requested LBA 12326 * range overlaps with this command's LBA range. 12327 */ 12328 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12329 uint64_t lba1; 12330 uint32_t len1; 12331 ctl_action action; 12332 int retval; 12333 12334 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12335 if (retval != 0) 12336 return (CTL_LUN_PAT_NONE); 12337 12338 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12339 desc->lba_range.len); 12340 /* 12341 * A "pass" means that the LBA ranges don't overlap, so 12342 * this doesn't match the user's range criteria. 12343 */ 12344 if (action == CTL_ACTION_PASS) 12345 return (CTL_LUN_PAT_NONE); 12346 } 12347 12348 return (filtered_pattern); 12349} 12350 12351static void 12352ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12353{ 12354 struct ctl_error_desc *desc, *desc2; 12355 12356 mtx_assert(&lun->lun_lock, MA_OWNED); 12357 12358 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12359 ctl_lun_error_pattern pattern; 12360 /* 12361 * Check to see whether this particular command matches 12362 * the pattern in the descriptor. 12363 */ 12364 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12365 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12366 continue; 12367 12368 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12369 case CTL_LUN_INJ_ABORTED: 12370 ctl_set_aborted(&io->scsiio); 12371 break; 12372 case CTL_LUN_INJ_MEDIUM_ERR: 12373 ctl_set_medium_error(&io->scsiio); 12374 break; 12375 case CTL_LUN_INJ_UA: 12376 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12377 * OCCURRED */ 12378 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12379 break; 12380 case CTL_LUN_INJ_CUSTOM: 12381 /* 12382 * We're assuming the user knows what he is doing. 12383 * Just copy the sense information without doing 12384 * checks. 12385 */ 12386 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12387 ctl_min(sizeof(desc->custom_sense), 12388 sizeof(io->scsiio.sense_data))); 12389 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12390 io->scsiio.sense_len = SSD_FULL_SIZE; 12391 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12392 break; 12393 case CTL_LUN_INJ_NONE: 12394 default: 12395 /* 12396 * If this is an error injection type we don't know 12397 * about, clear the continuous flag (if it is set) 12398 * so it will get deleted below. 12399 */ 12400 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12401 break; 12402 } 12403 /* 12404 * By default, each error injection action is a one-shot 12405 */ 12406 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12407 continue; 12408 12409 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12410 12411 free(desc, M_CTL); 12412 } 12413} 12414 12415#ifdef CTL_IO_DELAY 12416static void 12417ctl_datamove_timer_wakeup(void *arg) 12418{ 12419 union ctl_io *io; 12420 12421 io = (union ctl_io *)arg; 12422 12423 ctl_datamove(io); 12424} 12425#endif /* CTL_IO_DELAY */ 12426 12427void 12428ctl_datamove(union ctl_io *io) 12429{ 12430 void (*fe_datamove)(union ctl_io *io); 12431 12432 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12433 12434 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12435 12436#ifdef CTL_TIME_IO 12437 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12438 char str[256]; 12439 char path_str[64]; 12440 struct sbuf sb; 12441 12442 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12443 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12444 12445 sbuf_cat(&sb, path_str); 12446 switch (io->io_hdr.io_type) { 12447 case CTL_IO_SCSI: 12448 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12449 sbuf_printf(&sb, "\n"); 12450 sbuf_cat(&sb, path_str); 12451 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12452 io->scsiio.tag_num, io->scsiio.tag_type); 12453 break; 12454 case CTL_IO_TASK: 12455 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12456 "Tag Type: %d\n", io->taskio.task_action, 12457 io->taskio.tag_num, io->taskio.tag_type); 12458 break; 12459 default: 12460 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12461 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12462 break; 12463 } 12464 sbuf_cat(&sb, path_str); 12465 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12466 (intmax_t)time_uptime - io->io_hdr.start_time); 12467 sbuf_finish(&sb); 12468 printf("%s", sbuf_data(&sb)); 12469 } 12470#endif /* CTL_TIME_IO */ 12471 12472#ifdef CTL_IO_DELAY 12473 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12474 struct ctl_lun *lun; 12475 12476 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12477 12478 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12479 } else { 12480 struct ctl_lun *lun; 12481 12482 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12483 if ((lun != NULL) 12484 && (lun->delay_info.datamove_delay > 0)) { 12485 struct callout *callout; 12486 12487 callout = (struct callout *)&io->io_hdr.timer_bytes; 12488 callout_init(callout, /*mpsafe*/ 1); 12489 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12490 callout_reset(callout, 12491 lun->delay_info.datamove_delay * hz, 12492 ctl_datamove_timer_wakeup, io); 12493 if (lun->delay_info.datamove_type == 12494 CTL_DELAY_TYPE_ONESHOT) 12495 lun->delay_info.datamove_delay = 0; 12496 return; 12497 } 12498 } 12499#endif 12500 12501 /* 12502 * This command has been aborted. Set the port status, so we fail 12503 * the data move. 12504 */ 12505 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12506 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12507 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12508 io->io_hdr.nexus.targ_port, 12509 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12510 io->io_hdr.nexus.targ_lun); 12511 io->io_hdr.status = CTL_CMD_ABORTED; 12512 io->io_hdr.port_status = 31337; 12513 /* 12514 * Note that the backend, in this case, will get the 12515 * callback in its context. In other cases it may get 12516 * called in the frontend's interrupt thread context. 12517 */ 12518 io->scsiio.be_move_done(io); 12519 return; 12520 } 12521 12522 /* 12523 * If we're in XFER mode and this I/O is from the other shelf 12524 * controller, we need to send the DMA to the other side to 12525 * actually transfer the data to/from the host. In serialize only 12526 * mode the transfer happens below CTL and ctl_datamove() is only 12527 * called on the machine that originally received the I/O. 12528 */ 12529 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12530 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12531 union ctl_ha_msg msg; 12532 uint32_t sg_entries_sent; 12533 int do_sg_copy; 12534 int i; 12535 12536 memset(&msg, 0, sizeof(msg)); 12537 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12538 msg.hdr.original_sc = io->io_hdr.original_sc; 12539 msg.hdr.serializing_sc = io; 12540 msg.hdr.nexus = io->io_hdr.nexus; 12541 msg.dt.flags = io->io_hdr.flags; 12542 /* 12543 * We convert everything into a S/G list here. We can't 12544 * pass by reference, only by value between controllers. 12545 * So we can't pass a pointer to the S/G list, only as many 12546 * S/G entries as we can fit in here. If it's possible for 12547 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12548 * then we need to break this up into multiple transfers. 12549 */ 12550 if (io->scsiio.kern_sg_entries == 0) { 12551 msg.dt.kern_sg_entries = 1; 12552 /* 12553 * If this is in cached memory, flush the cache 12554 * before we send the DMA request to the other 12555 * controller. We want to do this in either the 12556 * read or the write case. The read case is 12557 * straightforward. In the write case, we want to 12558 * make sure nothing is in the local cache that 12559 * could overwrite the DMAed data. 12560 */ 12561 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12562 /* 12563 * XXX KDM use bus_dmamap_sync() here. 12564 */ 12565 } 12566 12567 /* 12568 * Convert to a physical address if this is a 12569 * virtual address. 12570 */ 12571 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12572 msg.dt.sg_list[0].addr = 12573 io->scsiio.kern_data_ptr; 12574 } else { 12575 /* 12576 * XXX KDM use busdma here! 12577 */ 12578#if 0 12579 msg.dt.sg_list[0].addr = (void *) 12580 vtophys(io->scsiio.kern_data_ptr); 12581#endif 12582 } 12583 12584 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12585 do_sg_copy = 0; 12586 } else { 12587 struct ctl_sg_entry *sgl; 12588 12589 do_sg_copy = 1; 12590 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12591 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12592 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12593 /* 12594 * XXX KDM use bus_dmamap_sync() here. 12595 */ 12596 } 12597 } 12598 12599 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12600 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12601 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12602 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12603 msg.dt.sg_sequence = 0; 12604 12605 /* 12606 * Loop until we've sent all of the S/G entries. On the 12607 * other end, we'll recompose these S/G entries into one 12608 * contiguous list before passing it to the 12609 */ 12610 for (sg_entries_sent = 0; sg_entries_sent < 12611 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12612 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12613 sizeof(msg.dt.sg_list[0])), 12614 msg.dt.kern_sg_entries - sg_entries_sent); 12615 12616 if (do_sg_copy != 0) { 12617 struct ctl_sg_entry *sgl; 12618 int j; 12619 12620 sgl = (struct ctl_sg_entry *) 12621 io->scsiio.kern_data_ptr; 12622 /* 12623 * If this is in cached memory, flush the cache 12624 * before we send the DMA request to the other 12625 * controller. We want to do this in either 12626 * the * read or the write case. The read 12627 * case is straightforward. In the write 12628 * case, we want to make sure nothing is 12629 * in the local cache that could overwrite 12630 * the DMAed data. 12631 */ 12632 12633 for (i = sg_entries_sent, j = 0; 12634 i < msg.dt.cur_sg_entries; i++, j++) { 12635 if ((io->io_hdr.flags & 12636 CTL_FLAG_NO_DATASYNC) == 0) { 12637 /* 12638 * XXX KDM use bus_dmamap_sync() 12639 */ 12640 } 12641 if ((io->io_hdr.flags & 12642 CTL_FLAG_BUS_ADDR) == 0) { 12643 /* 12644 * XXX KDM use busdma. 12645 */ 12646#if 0 12647 msg.dt.sg_list[j].addr =(void *) 12648 vtophys(sgl[i].addr); 12649#endif 12650 } else { 12651 msg.dt.sg_list[j].addr = 12652 sgl[i].addr; 12653 } 12654 msg.dt.sg_list[j].len = sgl[i].len; 12655 } 12656 } 12657 12658 sg_entries_sent += msg.dt.cur_sg_entries; 12659 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12660 msg.dt.sg_last = 1; 12661 else 12662 msg.dt.sg_last = 0; 12663 12664 /* 12665 * XXX KDM drop and reacquire the lock here? 12666 */ 12667 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12668 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12669 /* 12670 * XXX do something here. 12671 */ 12672 } 12673 12674 msg.dt.sent_sg_entries = sg_entries_sent; 12675 } 12676 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12677 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12678 ctl_failover_io(io, /*have_lock*/ 0); 12679 12680 } else { 12681 12682 /* 12683 * Lookup the fe_datamove() function for this particular 12684 * front end. 12685 */ 12686 fe_datamove = 12687 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12688 12689 fe_datamove(io); 12690 } 12691} 12692 12693static void 12694ctl_send_datamove_done(union ctl_io *io, int have_lock) 12695{ 12696 union ctl_ha_msg msg; 12697 int isc_status; 12698 12699 memset(&msg, 0, sizeof(msg)); 12700 12701 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12702 msg.hdr.original_sc = io; 12703 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12704 msg.hdr.nexus = io->io_hdr.nexus; 12705 msg.hdr.status = io->io_hdr.status; 12706 msg.scsi.tag_num = io->scsiio.tag_num; 12707 msg.scsi.tag_type = io->scsiio.tag_type; 12708 msg.scsi.scsi_status = io->scsiio.scsi_status; 12709 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12710 sizeof(io->scsiio.sense_data)); 12711 msg.scsi.sense_len = io->scsiio.sense_len; 12712 msg.scsi.sense_residual = io->scsiio.sense_residual; 12713 msg.scsi.fetd_status = io->io_hdr.port_status; 12714 msg.scsi.residual = io->scsiio.residual; 12715 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12716 12717 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12718 ctl_failover_io(io, /*have_lock*/ have_lock); 12719 return; 12720 } 12721 12722 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12723 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12724 /* XXX do something if this fails */ 12725 } 12726 12727} 12728 12729/* 12730 * The DMA to the remote side is done, now we need to tell the other side 12731 * we're done so it can continue with its data movement. 12732 */ 12733static void 12734ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12735{ 12736 union ctl_io *io; 12737 12738 io = rq->context; 12739 12740 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12741 printf("%s: ISC DMA write failed with error %d", __func__, 12742 rq->ret); 12743 ctl_set_internal_failure(&io->scsiio, 12744 /*sks_valid*/ 1, 12745 /*retry_count*/ rq->ret); 12746 } 12747 12748 ctl_dt_req_free(rq); 12749 12750 /* 12751 * In this case, we had to malloc the memory locally. Free it. 12752 */ 12753 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12754 int i; 12755 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12756 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12757 } 12758 /* 12759 * The data is in local and remote memory, so now we need to send 12760 * status (good or back) back to the other side. 12761 */ 12762 ctl_send_datamove_done(io, /*have_lock*/ 0); 12763} 12764 12765/* 12766 * We've moved the data from the host/controller into local memory. Now we 12767 * need to push it over to the remote controller's memory. 12768 */ 12769static int 12770ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12771{ 12772 int retval; 12773 12774 retval = 0; 12775 12776 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12777 ctl_datamove_remote_write_cb); 12778 12779 return (retval); 12780} 12781 12782static void 12783ctl_datamove_remote_write(union ctl_io *io) 12784{ 12785 int retval; 12786 void (*fe_datamove)(union ctl_io *io); 12787 12788 /* 12789 * - Get the data from the host/HBA into local memory. 12790 * - DMA memory from the local controller to the remote controller. 12791 * - Send status back to the remote controller. 12792 */ 12793 12794 retval = ctl_datamove_remote_sgl_setup(io); 12795 if (retval != 0) 12796 return; 12797 12798 /* Switch the pointer over so the FETD knows what to do */ 12799 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12800 12801 /* 12802 * Use a custom move done callback, since we need to send completion 12803 * back to the other controller, not to the backend on this side. 12804 */ 12805 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12806 12807 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12808 12809 fe_datamove(io); 12810 12811 return; 12812 12813} 12814 12815static int 12816ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12817{ 12818#if 0 12819 char str[256]; 12820 char path_str[64]; 12821 struct sbuf sb; 12822#endif 12823 12824 /* 12825 * In this case, we had to malloc the memory locally. Free it. 12826 */ 12827 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12828 int i; 12829 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12830 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12831 } 12832 12833#if 0 12834 scsi_path_string(io, path_str, sizeof(path_str)); 12835 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12836 sbuf_cat(&sb, path_str); 12837 scsi_command_string(&io->scsiio, NULL, &sb); 12838 sbuf_printf(&sb, "\n"); 12839 sbuf_cat(&sb, path_str); 12840 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12841 io->scsiio.tag_num, io->scsiio.tag_type); 12842 sbuf_cat(&sb, path_str); 12843 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12844 io->io_hdr.flags, io->io_hdr.status); 12845 sbuf_finish(&sb); 12846 printk("%s", sbuf_data(&sb)); 12847#endif 12848 12849 12850 /* 12851 * The read is done, now we need to send status (good or bad) back 12852 * to the other side. 12853 */ 12854 ctl_send_datamove_done(io, /*have_lock*/ 0); 12855 12856 return (0); 12857} 12858 12859static void 12860ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12861{ 12862 union ctl_io *io; 12863 void (*fe_datamove)(union ctl_io *io); 12864 12865 io = rq->context; 12866 12867 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12868 printf("%s: ISC DMA read failed with error %d", __func__, 12869 rq->ret); 12870 ctl_set_internal_failure(&io->scsiio, 12871 /*sks_valid*/ 1, 12872 /*retry_count*/ rq->ret); 12873 } 12874 12875 ctl_dt_req_free(rq); 12876 12877 /* Switch the pointer over so the FETD knows what to do */ 12878 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12879 12880 /* 12881 * Use a custom move done callback, since we need to send completion 12882 * back to the other controller, not to the backend on this side. 12883 */ 12884 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12885 12886 /* XXX KDM add checks like the ones in ctl_datamove? */ 12887 12888 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12889 12890 fe_datamove(io); 12891} 12892 12893static int 12894ctl_datamove_remote_sgl_setup(union ctl_io *io) 12895{ 12896 struct ctl_sg_entry *local_sglist, *remote_sglist; 12897 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12898 struct ctl_softc *softc; 12899 int retval; 12900 int i; 12901 12902 retval = 0; 12903 softc = control_softc; 12904 12905 local_sglist = io->io_hdr.local_sglist; 12906 local_dma_sglist = io->io_hdr.local_dma_sglist; 12907 remote_sglist = io->io_hdr.remote_sglist; 12908 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12909 12910 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12911 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12912 local_sglist[i].len = remote_sglist[i].len; 12913 12914 /* 12915 * XXX Detect the situation where the RS-level I/O 12916 * redirector on the other side has already read the 12917 * data off of the AOR RS on this side, and 12918 * transferred it to remote (mirror) memory on the 12919 * other side. Since we already have the data in 12920 * memory here, we just need to use it. 12921 * 12922 * XXX KDM this can probably be removed once we 12923 * get the cache device code in and take the 12924 * current AOR implementation out. 12925 */ 12926#ifdef NEEDTOPORT 12927 if ((remote_sglist[i].addr >= 12928 (void *)vtophys(softc->mirr->addr)) 12929 && (remote_sglist[i].addr < 12930 ((void *)vtophys(softc->mirr->addr) + 12931 CacheMirrorOffset))) { 12932 local_sglist[i].addr = remote_sglist[i].addr - 12933 CacheMirrorOffset; 12934 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12935 CTL_FLAG_DATA_IN) 12936 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12937 } else { 12938 local_sglist[i].addr = remote_sglist[i].addr + 12939 CacheMirrorOffset; 12940 } 12941#endif 12942#if 0 12943 printf("%s: local %p, remote %p, len %d\n", 12944 __func__, local_sglist[i].addr, 12945 remote_sglist[i].addr, local_sglist[i].len); 12946#endif 12947 } 12948 } else { 12949 uint32_t len_to_go; 12950 12951 /* 12952 * In this case, we don't have automatically allocated 12953 * memory for this I/O on this controller. This typically 12954 * happens with internal CTL I/O -- e.g. inquiry, mode 12955 * sense, etc. Anything coming from RAIDCore will have 12956 * a mirror area available. 12957 */ 12958 len_to_go = io->scsiio.kern_data_len; 12959 12960 /* 12961 * Clear the no datasync flag, we have to use malloced 12962 * buffers. 12963 */ 12964 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12965 12966 /* 12967 * The difficult thing here is that the size of the various 12968 * S/G segments may be different than the size from the 12969 * remote controller. That'll make it harder when DMAing 12970 * the data back to the other side. 12971 */ 12972 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12973 sizeof(io->io_hdr.remote_sglist[0])) && 12974 (len_to_go > 0); i++) { 12975 local_sglist[i].len = ctl_min(len_to_go, 131072); 12976 CTL_SIZE_8B(local_dma_sglist[i].len, 12977 local_sglist[i].len); 12978 local_sglist[i].addr = 12979 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12980 12981 local_dma_sglist[i].addr = local_sglist[i].addr; 12982 12983 if (local_sglist[i].addr == NULL) { 12984 int j; 12985 12986 printf("malloc failed for %zd bytes!", 12987 local_dma_sglist[i].len); 12988 for (j = 0; j < i; j++) { 12989 free(local_sglist[j].addr, M_CTL); 12990 } 12991 ctl_set_internal_failure(&io->scsiio, 12992 /*sks_valid*/ 1, 12993 /*retry_count*/ 4857); 12994 retval = 1; 12995 goto bailout_error; 12996 12997 } 12998 /* XXX KDM do we need a sync here? */ 12999 13000 len_to_go -= local_sglist[i].len; 13001 } 13002 /* 13003 * Reset the number of S/G entries accordingly. The 13004 * original number of S/G entries is available in 13005 * rem_sg_entries. 13006 */ 13007 io->scsiio.kern_sg_entries = i; 13008 13009#if 0 13010 printf("%s: kern_sg_entries = %d\n", __func__, 13011 io->scsiio.kern_sg_entries); 13012 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13013 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13014 local_sglist[i].addr, local_sglist[i].len, 13015 local_dma_sglist[i].len); 13016#endif 13017 } 13018 13019 13020 return (retval); 13021 13022bailout_error: 13023 13024 ctl_send_datamove_done(io, /*have_lock*/ 0); 13025 13026 return (retval); 13027} 13028 13029static int 13030ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13031 ctl_ha_dt_cb callback) 13032{ 13033 struct ctl_ha_dt_req *rq; 13034 struct ctl_sg_entry *remote_sglist, *local_sglist; 13035 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13036 uint32_t local_used, remote_used, total_used; 13037 int retval; 13038 int i, j; 13039 13040 retval = 0; 13041 13042 rq = ctl_dt_req_alloc(); 13043 13044 /* 13045 * If we failed to allocate the request, and if the DMA didn't fail 13046 * anyway, set busy status. This is just a resource allocation 13047 * failure. 13048 */ 13049 if ((rq == NULL) 13050 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13051 ctl_set_busy(&io->scsiio); 13052 13053 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13054 13055 if (rq != NULL) 13056 ctl_dt_req_free(rq); 13057 13058 /* 13059 * The data move failed. We need to return status back 13060 * to the other controller. No point in trying to DMA 13061 * data to the remote controller. 13062 */ 13063 13064 ctl_send_datamove_done(io, /*have_lock*/ 0); 13065 13066 retval = 1; 13067 13068 goto bailout; 13069 } 13070 13071 local_sglist = io->io_hdr.local_sglist; 13072 local_dma_sglist = io->io_hdr.local_dma_sglist; 13073 remote_sglist = io->io_hdr.remote_sglist; 13074 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13075 local_used = 0; 13076 remote_used = 0; 13077 total_used = 0; 13078 13079 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13080 rq->ret = CTL_HA_STATUS_SUCCESS; 13081 rq->context = io; 13082 callback(rq); 13083 goto bailout; 13084 } 13085 13086 /* 13087 * Pull/push the data over the wire from/to the other controller. 13088 * This takes into account the possibility that the local and 13089 * remote sglists may not be identical in terms of the size of 13090 * the elements and the number of elements. 13091 * 13092 * One fundamental assumption here is that the length allocated for 13093 * both the local and remote sglists is identical. Otherwise, we've 13094 * essentially got a coding error of some sort. 13095 */ 13096 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13097 int isc_ret; 13098 uint32_t cur_len, dma_length; 13099 uint8_t *tmp_ptr; 13100 13101 rq->id = CTL_HA_DATA_CTL; 13102 rq->command = command; 13103 rq->context = io; 13104 13105 /* 13106 * Both pointers should be aligned. But it is possible 13107 * that the allocation length is not. They should both 13108 * also have enough slack left over at the end, though, 13109 * to round up to the next 8 byte boundary. 13110 */ 13111 cur_len = ctl_min(local_sglist[i].len - local_used, 13112 remote_sglist[j].len - remote_used); 13113 13114 /* 13115 * In this case, we have a size issue and need to decrease 13116 * the size, except in the case where we actually have less 13117 * than 8 bytes left. In that case, we need to increase 13118 * the DMA length to get the last bit. 13119 */ 13120 if ((cur_len & 0x7) != 0) { 13121 if (cur_len > 0x7) { 13122 cur_len = cur_len - (cur_len & 0x7); 13123 dma_length = cur_len; 13124 } else { 13125 CTL_SIZE_8B(dma_length, cur_len); 13126 } 13127 13128 } else 13129 dma_length = cur_len; 13130 13131 /* 13132 * If we had to allocate memory for this I/O, instead of using 13133 * the non-cached mirror memory, we'll need to flush the cache 13134 * before trying to DMA to the other controller. 13135 * 13136 * We could end up doing this multiple times for the same 13137 * segment if we have a larger local segment than remote 13138 * segment. That shouldn't be an issue. 13139 */ 13140 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13141 /* 13142 * XXX KDM use bus_dmamap_sync() here. 13143 */ 13144 } 13145 13146 rq->size = dma_length; 13147 13148 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13149 tmp_ptr += local_used; 13150 13151 /* Use physical addresses when talking to ISC hardware */ 13152 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13153 /* XXX KDM use busdma */ 13154#if 0 13155 rq->local = vtophys(tmp_ptr); 13156#endif 13157 } else 13158 rq->local = tmp_ptr; 13159 13160 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13161 tmp_ptr += remote_used; 13162 rq->remote = tmp_ptr; 13163 13164 rq->callback = NULL; 13165 13166 local_used += cur_len; 13167 if (local_used >= local_sglist[i].len) { 13168 i++; 13169 local_used = 0; 13170 } 13171 13172 remote_used += cur_len; 13173 if (remote_used >= remote_sglist[j].len) { 13174 j++; 13175 remote_used = 0; 13176 } 13177 total_used += cur_len; 13178 13179 if (total_used >= io->scsiio.kern_data_len) 13180 rq->callback = callback; 13181 13182 if ((rq->size & 0x7) != 0) { 13183 printf("%s: warning: size %d is not on 8b boundary\n", 13184 __func__, rq->size); 13185 } 13186 if (((uintptr_t)rq->local & 0x7) != 0) { 13187 printf("%s: warning: local %p not on 8b boundary\n", 13188 __func__, rq->local); 13189 } 13190 if (((uintptr_t)rq->remote & 0x7) != 0) { 13191 printf("%s: warning: remote %p not on 8b boundary\n", 13192 __func__, rq->local); 13193 } 13194#if 0 13195 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13196 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13197 rq->local, rq->remote, rq->size); 13198#endif 13199 13200 isc_ret = ctl_dt_single(rq); 13201 if (isc_ret == CTL_HA_STATUS_WAIT) 13202 continue; 13203 13204 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13205 rq->ret = CTL_HA_STATUS_SUCCESS; 13206 } else { 13207 rq->ret = isc_ret; 13208 } 13209 callback(rq); 13210 goto bailout; 13211 } 13212 13213bailout: 13214 return (retval); 13215 13216} 13217 13218static void 13219ctl_datamove_remote_read(union ctl_io *io) 13220{ 13221 int retval; 13222 int i; 13223 13224 /* 13225 * This will send an error to the other controller in the case of a 13226 * failure. 13227 */ 13228 retval = ctl_datamove_remote_sgl_setup(io); 13229 if (retval != 0) 13230 return; 13231 13232 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13233 ctl_datamove_remote_read_cb); 13234 if ((retval != 0) 13235 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13236 /* 13237 * Make sure we free memory if there was an error.. The 13238 * ctl_datamove_remote_xfer() function will send the 13239 * datamove done message, or call the callback with an 13240 * error if there is a problem. 13241 */ 13242 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13243 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13244 } 13245 13246 return; 13247} 13248 13249/* 13250 * Process a datamove request from the other controller. This is used for 13251 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13252 * first. Once that is complete, the data gets DMAed into the remote 13253 * controller's memory. For reads, we DMA from the remote controller's 13254 * memory into our memory first, and then move it out to the FETD. 13255 */ 13256static void 13257ctl_datamove_remote(union ctl_io *io) 13258{ 13259 struct ctl_softc *softc; 13260 13261 softc = control_softc; 13262 13263 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13264 13265 /* 13266 * Note that we look for an aborted I/O here, but don't do some of 13267 * the other checks that ctl_datamove() normally does. We don't 13268 * need to run the task queue, because this I/O is on the ISC 13269 * queue, which is executed by the work thread after the task queue. 13270 * We don't need to run the datamove delay code, since that should 13271 * have been done if need be on the other controller. 13272 */ 13273 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13274 13275 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13276 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13277 io->io_hdr.nexus.targ_port, 13278 io->io_hdr.nexus.targ_target.id, 13279 io->io_hdr.nexus.targ_lun); 13280 io->io_hdr.status = CTL_CMD_ABORTED; 13281 io->io_hdr.port_status = 31338; 13282 13283 ctl_send_datamove_done(io, /*have_lock*/ 0); 13284 13285 return; 13286 } 13287 13288 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13289 ctl_datamove_remote_write(io); 13290 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13291 ctl_datamove_remote_read(io); 13292 } else { 13293 union ctl_ha_msg msg; 13294 struct scsi_sense_data *sense; 13295 uint8_t sks[3]; 13296 int retry_count; 13297 13298 memset(&msg, 0, sizeof(msg)); 13299 13300 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13301 msg.hdr.status = CTL_SCSI_ERROR; 13302 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13303 13304 retry_count = 4243; 13305 13306 sense = &msg.scsi.sense_data; 13307 sks[0] = SSD_SCS_VALID; 13308 sks[1] = (retry_count >> 8) & 0xff; 13309 sks[2] = retry_count & 0xff; 13310 13311 /* "Internal target failure" */ 13312 scsi_set_sense_data(sense, 13313 /*sense_format*/ SSD_TYPE_NONE, 13314 /*current_error*/ 1, 13315 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13316 /*asc*/ 0x44, 13317 /*ascq*/ 0x00, 13318 /*type*/ SSD_ELEM_SKS, 13319 /*size*/ sizeof(sks), 13320 /*data*/ sks, 13321 SSD_ELEM_NONE); 13322 13323 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13324 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13325 ctl_failover_io(io, /*have_lock*/ 1); 13326 return; 13327 } 13328 13329 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13330 CTL_HA_STATUS_SUCCESS) { 13331 /* XXX KDM what to do if this fails? */ 13332 } 13333 return; 13334 } 13335 13336} 13337 13338static int 13339ctl_process_done(union ctl_io *io) 13340{ 13341 struct ctl_lun *lun; 13342 struct ctl_softc *ctl_softc; 13343 void (*fe_done)(union ctl_io *io); 13344 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13345 13346 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13347 13348 fe_done = 13349 control_softc->ctl_ports[targ_port]->fe_done; 13350 13351#ifdef CTL_TIME_IO 13352 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13353 char str[256]; 13354 char path_str[64]; 13355 struct sbuf sb; 13356 13357 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13358 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13359 13360 sbuf_cat(&sb, path_str); 13361 switch (io->io_hdr.io_type) { 13362 case CTL_IO_SCSI: 13363 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13364 sbuf_printf(&sb, "\n"); 13365 sbuf_cat(&sb, path_str); 13366 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13367 io->scsiio.tag_num, io->scsiio.tag_type); 13368 break; 13369 case CTL_IO_TASK: 13370 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13371 "Tag Type: %d\n", io->taskio.task_action, 13372 io->taskio.tag_num, io->taskio.tag_type); 13373 break; 13374 default: 13375 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13376 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13377 break; 13378 } 13379 sbuf_cat(&sb, path_str); 13380 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13381 (intmax_t)time_uptime - io->io_hdr.start_time); 13382 sbuf_finish(&sb); 13383 printf("%s", sbuf_data(&sb)); 13384 } 13385#endif /* CTL_TIME_IO */ 13386 13387 switch (io->io_hdr.io_type) { 13388 case CTL_IO_SCSI: 13389 break; 13390 case CTL_IO_TASK: 13391 if (bootverbose || verbose > 0) 13392 ctl_io_error_print(io, NULL); 13393 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13394 ctl_free_io(io); 13395 else 13396 fe_done(io); 13397 return (CTL_RETVAL_COMPLETE); 13398 break; 13399 default: 13400 printf("ctl_process_done: invalid io type %d\n", 13401 io->io_hdr.io_type); 13402 panic("ctl_process_done: invalid io type %d\n", 13403 io->io_hdr.io_type); 13404 break; /* NOTREACHED */ 13405 } 13406 13407 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13408 if (lun == NULL) { 13409 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13410 io->io_hdr.nexus.targ_mapped_lun)); 13411 fe_done(io); 13412 goto bailout; 13413 } 13414 ctl_softc = lun->ctl_softc; 13415 13416 mtx_lock(&lun->lun_lock); 13417 13418 /* 13419 * Check to see if we have any errors to inject here. We only 13420 * inject errors for commands that don't already have errors set. 13421 */ 13422 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13423 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13424 ctl_inject_error(lun, io); 13425 13426 /* 13427 * XXX KDM how do we treat commands that aren't completed 13428 * successfully? 13429 * 13430 * XXX KDM should we also track I/O latency? 13431 */ 13432 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13433 io->io_hdr.io_type == CTL_IO_SCSI) { 13434#ifdef CTL_TIME_IO 13435 struct bintime cur_bt; 13436#endif 13437 int type; 13438 13439 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13440 CTL_FLAG_DATA_IN) 13441 type = CTL_STATS_READ; 13442 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13443 CTL_FLAG_DATA_OUT) 13444 type = CTL_STATS_WRITE; 13445 else 13446 type = CTL_STATS_NO_IO; 13447 13448 lun->stats.ports[targ_port].bytes[type] += 13449 io->scsiio.kern_total_len; 13450 lun->stats.ports[targ_port].operations[type]++; 13451#ifdef CTL_TIME_IO 13452 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13453 &io->io_hdr.dma_bt); 13454 lun->stats.ports[targ_port].num_dmas[type] += 13455 io->io_hdr.num_dmas; 13456 getbintime(&cur_bt); 13457 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13458 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13459#endif 13460 } 13461 13462 /* 13463 * Remove this from the OOA queue. 13464 */ 13465 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13466 13467 /* 13468 * Run through the blocked queue on this LUN and see if anything 13469 * has become unblocked, now that this transaction is done. 13470 */ 13471 ctl_check_blocked(lun); 13472 13473 /* 13474 * If the LUN has been invalidated, free it if there is nothing 13475 * left on its OOA queue. 13476 */ 13477 if ((lun->flags & CTL_LUN_INVALID) 13478 && TAILQ_EMPTY(&lun->ooa_queue)) { 13479 mtx_unlock(&lun->lun_lock); 13480 mtx_lock(&ctl_softc->ctl_lock); 13481 ctl_free_lun(lun); 13482 mtx_unlock(&ctl_softc->ctl_lock); 13483 } else 13484 mtx_unlock(&lun->lun_lock); 13485 13486 /* 13487 * If this command has been aborted, make sure we set the status 13488 * properly. The FETD is responsible for freeing the I/O and doing 13489 * whatever it needs to do to clean up its state. 13490 */ 13491 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13492 io->io_hdr.status = CTL_CMD_ABORTED; 13493 13494 /* 13495 * We print out status for every task management command. For SCSI 13496 * commands, we filter out any unit attention errors; they happen 13497 * on every boot, and would clutter up the log. Note: task 13498 * management commands aren't printed here, they are printed above, 13499 * since they should never even make it down here. 13500 */ 13501 switch (io->io_hdr.io_type) { 13502 case CTL_IO_SCSI: { 13503 int error_code, sense_key, asc, ascq; 13504 13505 sense_key = 0; 13506 13507 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13508 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13509 /* 13510 * Since this is just for printing, no need to 13511 * show errors here. 13512 */ 13513 scsi_extract_sense_len(&io->scsiio.sense_data, 13514 io->scsiio.sense_len, 13515 &error_code, 13516 &sense_key, 13517 &asc, 13518 &ascq, 13519 /*show_errors*/ 0); 13520 } 13521 13522 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13523 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13524 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13525 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13526 13527 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13528 ctl_softc->skipped_prints++; 13529 } else { 13530 uint32_t skipped_prints; 13531 13532 skipped_prints = ctl_softc->skipped_prints; 13533 13534 ctl_softc->skipped_prints = 0; 13535 ctl_softc->last_print_jiffies = time_uptime; 13536 13537 if (skipped_prints > 0) { 13538#ifdef NEEDTOPORT 13539 csevent_log(CSC_CTL | CSC_SHELF_SW | 13540 CTL_ERROR_REPORT, 13541 csevent_LogType_Trace, 13542 csevent_Severity_Information, 13543 csevent_AlertLevel_Green, 13544 csevent_FRU_Firmware, 13545 csevent_FRU_Unknown, 13546 "High CTL error volume, %d prints " 13547 "skipped", skipped_prints); 13548#endif 13549 } 13550 if (bootverbose || verbose > 0) 13551 ctl_io_error_print(io, NULL); 13552 } 13553 } 13554 break; 13555 } 13556 case CTL_IO_TASK: 13557 if (bootverbose || verbose > 0) 13558 ctl_io_error_print(io, NULL); 13559 break; 13560 default: 13561 break; 13562 } 13563 13564 /* 13565 * Tell the FETD or the other shelf controller we're done with this 13566 * command. Note that only SCSI commands get to this point. Task 13567 * management commands are completed above. 13568 * 13569 * We only send status to the other controller if we're in XFER 13570 * mode. In SER_ONLY mode, the I/O is done on the controller that 13571 * received the I/O (from CTL's perspective), and so the status is 13572 * generated there. 13573 * 13574 * XXX KDM if we hold the lock here, we could cause a deadlock 13575 * if the frontend comes back in in this context to queue 13576 * something. 13577 */ 13578 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13579 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13580 union ctl_ha_msg msg; 13581 13582 memset(&msg, 0, sizeof(msg)); 13583 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13584 msg.hdr.original_sc = io->io_hdr.original_sc; 13585 msg.hdr.nexus = io->io_hdr.nexus; 13586 msg.hdr.status = io->io_hdr.status; 13587 msg.scsi.scsi_status = io->scsiio.scsi_status; 13588 msg.scsi.tag_num = io->scsiio.tag_num; 13589 msg.scsi.tag_type = io->scsiio.tag_type; 13590 msg.scsi.sense_len = io->scsiio.sense_len; 13591 msg.scsi.sense_residual = io->scsiio.sense_residual; 13592 msg.scsi.residual = io->scsiio.residual; 13593 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13594 sizeof(io->scsiio.sense_data)); 13595 /* 13596 * We copy this whether or not this is an I/O-related 13597 * command. Otherwise, we'd have to go and check to see 13598 * whether it's a read/write command, and it really isn't 13599 * worth it. 13600 */ 13601 memcpy(&msg.scsi.lbalen, 13602 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13603 sizeof(msg.scsi.lbalen)); 13604 13605 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13606 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13607 /* XXX do something here */ 13608 } 13609 13610 ctl_free_io(io); 13611 } else 13612 fe_done(io); 13613 13614bailout: 13615 13616 return (CTL_RETVAL_COMPLETE); 13617} 13618 13619/* 13620 * Front end should call this if it doesn't do autosense. When the request 13621 * sense comes back in from the initiator, we'll dequeue this and send it. 13622 */ 13623int 13624ctl_queue_sense(union ctl_io *io) 13625{ 13626 struct ctl_lun *lun; 13627 struct ctl_softc *ctl_softc; 13628 uint32_t initidx, targ_lun; 13629 13630 ctl_softc = control_softc; 13631 13632 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13633 13634 /* 13635 * LUN lookup will likely move to the ctl_work_thread() once we 13636 * have our new queueing infrastructure (that doesn't put things on 13637 * a per-LUN queue initially). That is so that we can handle 13638 * things like an INQUIRY to a LUN that we don't have enabled. We 13639 * can't deal with that right now. 13640 */ 13641 mtx_lock(&ctl_softc->ctl_lock); 13642 13643 /* 13644 * If we don't have a LUN for this, just toss the sense 13645 * information. 13646 */ 13647 targ_lun = io->io_hdr.nexus.targ_lun; 13648 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13649 if ((targ_lun < CTL_MAX_LUNS) 13650 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13651 lun = ctl_softc->ctl_luns[targ_lun]; 13652 else 13653 goto bailout; 13654 13655 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13656 13657 mtx_lock(&lun->lun_lock); 13658 /* 13659 * Already have CA set for this LUN...toss the sense information. 13660 */ 13661 if (ctl_is_set(lun->have_ca, initidx)) { 13662 mtx_unlock(&lun->lun_lock); 13663 goto bailout; 13664 } 13665 13666 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13667 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13668 sizeof(io->scsiio.sense_data))); 13669 ctl_set_mask(lun->have_ca, initidx); 13670 mtx_unlock(&lun->lun_lock); 13671 13672bailout: 13673 mtx_unlock(&ctl_softc->ctl_lock); 13674 13675 ctl_free_io(io); 13676 13677 return (CTL_RETVAL_COMPLETE); 13678} 13679 13680/* 13681 * Primary command inlet from frontend ports. All SCSI and task I/O 13682 * requests must go through this function. 13683 */ 13684int 13685ctl_queue(union ctl_io *io) 13686{ 13687 struct ctl_softc *ctl_softc; 13688 13689 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13690 13691 ctl_softc = control_softc; 13692 13693#ifdef CTL_TIME_IO 13694 io->io_hdr.start_time = time_uptime; 13695 getbintime(&io->io_hdr.start_bt); 13696#endif /* CTL_TIME_IO */ 13697 13698 /* Map FE-specific LUN ID into global one. */ 13699 io->io_hdr.nexus.targ_mapped_lun = 13700 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13701 13702 switch (io->io_hdr.io_type) { 13703 case CTL_IO_SCSI: 13704 case CTL_IO_TASK: 13705 ctl_enqueue_incoming(io); 13706 break; 13707 default: 13708 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13709 return (EINVAL); 13710 } 13711 13712 return (CTL_RETVAL_COMPLETE); 13713} 13714 13715#ifdef CTL_IO_DELAY 13716static void 13717ctl_done_timer_wakeup(void *arg) 13718{ 13719 union ctl_io *io; 13720 13721 io = (union ctl_io *)arg; 13722 ctl_done(io); 13723} 13724#endif /* CTL_IO_DELAY */ 13725 13726void 13727ctl_done(union ctl_io *io) 13728{ 13729 struct ctl_softc *ctl_softc; 13730 13731 ctl_softc = control_softc; 13732 13733 /* 13734 * Enable this to catch duplicate completion issues. 13735 */ 13736#if 0 13737 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13738 printf("%s: type %d msg %d cdb %x iptl: " 13739 "%d:%d:%d:%d tag 0x%04x " 13740 "flag %#x status %x\n", 13741 __func__, 13742 io->io_hdr.io_type, 13743 io->io_hdr.msg_type, 13744 io->scsiio.cdb[0], 13745 io->io_hdr.nexus.initid.id, 13746 io->io_hdr.nexus.targ_port, 13747 io->io_hdr.nexus.targ_target.id, 13748 io->io_hdr.nexus.targ_lun, 13749 (io->io_hdr.io_type == 13750 CTL_IO_TASK) ? 13751 io->taskio.tag_num : 13752 io->scsiio.tag_num, 13753 io->io_hdr.flags, 13754 io->io_hdr.status); 13755 } else 13756 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13757#endif 13758 13759 /* 13760 * This is an internal copy of an I/O, and should not go through 13761 * the normal done processing logic. 13762 */ 13763 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13764 return; 13765 13766 /* 13767 * We need to send a msg to the serializing shelf to finish the IO 13768 * as well. We don't send a finish message to the other shelf if 13769 * this is a task management command. Task management commands 13770 * aren't serialized in the OOA queue, but rather just executed on 13771 * both shelf controllers for commands that originated on that 13772 * controller. 13773 */ 13774 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13775 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13776 union ctl_ha_msg msg_io; 13777 13778 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13779 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13780 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13781 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13782 } 13783 /* continue on to finish IO */ 13784 } 13785#ifdef CTL_IO_DELAY 13786 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13787 struct ctl_lun *lun; 13788 13789 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13790 13791 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13792 } else { 13793 struct ctl_lun *lun; 13794 13795 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13796 13797 if ((lun != NULL) 13798 && (lun->delay_info.done_delay > 0)) { 13799 struct callout *callout; 13800 13801 callout = (struct callout *)&io->io_hdr.timer_bytes; 13802 callout_init(callout, /*mpsafe*/ 1); 13803 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13804 callout_reset(callout, 13805 lun->delay_info.done_delay * hz, 13806 ctl_done_timer_wakeup, io); 13807 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13808 lun->delay_info.done_delay = 0; 13809 return; 13810 } 13811 } 13812#endif /* CTL_IO_DELAY */ 13813 13814 ctl_enqueue_done(io); 13815} 13816 13817int 13818ctl_isc(struct ctl_scsiio *ctsio) 13819{ 13820 struct ctl_lun *lun; 13821 int retval; 13822 13823 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13824 13825 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13826 13827 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13828 13829 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13830 13831 return (retval); 13832} 13833 13834 13835static void 13836ctl_work_thread(void *arg) 13837{ 13838 struct ctl_thread *thr = (struct ctl_thread *)arg; 13839 struct ctl_softc *softc = thr->ctl_softc; 13840 union ctl_io *io; 13841 int retval; 13842 13843 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13844 13845 for (;;) { 13846 retval = 0; 13847 13848 /* 13849 * We handle the queues in this order: 13850 * - ISC 13851 * - done queue (to free up resources, unblock other commands) 13852 * - RtR queue 13853 * - incoming queue 13854 * 13855 * If those queues are empty, we break out of the loop and 13856 * go to sleep. 13857 */ 13858 mtx_lock(&thr->queue_lock); 13859 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13860 if (io != NULL) { 13861 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13862 mtx_unlock(&thr->queue_lock); 13863 ctl_handle_isc(io); 13864 continue; 13865 } 13866 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13867 if (io != NULL) { 13868 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13869 /* clear any blocked commands, call fe_done */ 13870 mtx_unlock(&thr->queue_lock); 13871 retval = ctl_process_done(io); 13872 continue; 13873 } 13874 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13875 if (io != NULL) { 13876 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13877 mtx_unlock(&thr->queue_lock); 13878 if (io->io_hdr.io_type == CTL_IO_TASK) 13879 ctl_run_task(io); 13880 else 13881 ctl_scsiio_precheck(softc, &io->scsiio); 13882 continue; 13883 } 13884 if (!ctl_pause_rtr) { 13885 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13886 if (io != NULL) { 13887 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13888 mtx_unlock(&thr->queue_lock); 13889 retval = ctl_scsiio(&io->scsiio); 13890 if (retval != CTL_RETVAL_COMPLETE) 13891 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13892 continue; 13893 } 13894 } 13895 13896 /* Sleep until we have something to do. */ 13897 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13898 } 13899} 13900 13901static void 13902ctl_lun_thread(void *arg) 13903{ 13904 struct ctl_softc *softc = (struct ctl_softc *)arg; 13905 struct ctl_be_lun *be_lun; 13906 int retval; 13907 13908 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13909 13910 for (;;) { 13911 retval = 0; 13912 mtx_lock(&softc->ctl_lock); 13913 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13914 if (be_lun != NULL) { 13915 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13916 mtx_unlock(&softc->ctl_lock); 13917 ctl_create_lun(be_lun); 13918 continue; 13919 } 13920 13921 /* Sleep until we have something to do. */ 13922 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13923 PDROP | PRIBIO, "-", 0); 13924 } 13925} 13926 13927static void 13928ctl_enqueue_incoming(union ctl_io *io) 13929{ 13930 struct ctl_softc *softc = control_softc; 13931 struct ctl_thread *thr; 13932 u_int idx; 13933 13934 idx = (io->io_hdr.nexus.targ_port * 127 + 13935 io->io_hdr.nexus.initid.id) % worker_threads; 13936 thr = &softc->threads[idx]; 13937 mtx_lock(&thr->queue_lock); 13938 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13939 mtx_unlock(&thr->queue_lock); 13940 wakeup(thr); 13941} 13942 13943static void 13944ctl_enqueue_rtr(union ctl_io *io) 13945{ 13946 struct ctl_softc *softc = control_softc; 13947 struct ctl_thread *thr; 13948 13949 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13950 mtx_lock(&thr->queue_lock); 13951 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13952 mtx_unlock(&thr->queue_lock); 13953 wakeup(thr); 13954} 13955 13956static void 13957ctl_enqueue_done(union ctl_io *io) 13958{ 13959 struct ctl_softc *softc = control_softc; 13960 struct ctl_thread *thr; 13961 13962 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13963 mtx_lock(&thr->queue_lock); 13964 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13965 mtx_unlock(&thr->queue_lock); 13966 wakeup(thr); 13967} 13968 13969static void 13970ctl_enqueue_isc(union ctl_io *io) 13971{ 13972 struct ctl_softc *softc = control_softc; 13973 struct ctl_thread *thr; 13974 13975 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13976 mtx_lock(&thr->queue_lock); 13977 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13978 mtx_unlock(&thr->queue_lock); 13979 wakeup(thr); 13980} 13981 13982/* Initialization and failover */ 13983 13984void 13985ctl_init_isc_msg(void) 13986{ 13987 printf("CTL: Still calling this thing\n"); 13988} 13989 13990/* 13991 * Init component 13992 * Initializes component into configuration defined by bootMode 13993 * (see hasc-sv.c) 13994 * returns hasc_Status: 13995 * OK 13996 * ERROR - fatal error 13997 */ 13998static ctl_ha_comp_status 13999ctl_isc_init(struct ctl_ha_component *c) 14000{ 14001 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14002 14003 c->status = ret; 14004 return ret; 14005} 14006 14007/* Start component 14008 * Starts component in state requested. If component starts successfully, 14009 * it must set its own state to the requestrd state 14010 * When requested state is HASC_STATE_HA, the component may refine it 14011 * by adding _SLAVE or _MASTER flags. 14012 * Currently allowed state transitions are: 14013 * UNKNOWN->HA - initial startup 14014 * UNKNOWN->SINGLE - initial startup when no parter detected 14015 * HA->SINGLE - failover 14016 * returns ctl_ha_comp_status: 14017 * OK - component successfully started in requested state 14018 * FAILED - could not start the requested state, failover may 14019 * be possible 14020 * ERROR - fatal error detected, no future startup possible 14021 */ 14022static ctl_ha_comp_status 14023ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14024{ 14025 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14026 14027 printf("%s: go\n", __func__); 14028 14029 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14030 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14031 ctl_is_single = 0; 14032 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14033 != CTL_HA_STATUS_SUCCESS) { 14034 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14035 ret = CTL_HA_COMP_STATUS_ERROR; 14036 } 14037 } else if (CTL_HA_STATE_IS_HA(c->state) 14038 && CTL_HA_STATE_IS_SINGLE(state)){ 14039 // HA->SINGLE transition 14040 ctl_failover(); 14041 ctl_is_single = 1; 14042 } else { 14043 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14044 c->state, state); 14045 ret = CTL_HA_COMP_STATUS_ERROR; 14046 } 14047 if (CTL_HA_STATE_IS_SINGLE(state)) 14048 ctl_is_single = 1; 14049 14050 c->state = state; 14051 c->status = ret; 14052 return ret; 14053} 14054 14055/* 14056 * Quiesce component 14057 * The component must clear any error conditions (set status to OK) and 14058 * prepare itself to another Start call 14059 * returns ctl_ha_comp_status: 14060 * OK 14061 * ERROR 14062 */ 14063static ctl_ha_comp_status 14064ctl_isc_quiesce(struct ctl_ha_component *c) 14065{ 14066 int ret = CTL_HA_COMP_STATUS_OK; 14067 14068 ctl_pause_rtr = 1; 14069 c->status = ret; 14070 return ret; 14071} 14072 14073struct ctl_ha_component ctl_ha_component_ctlisc = 14074{ 14075 .name = "CTL ISC", 14076 .state = CTL_HA_STATE_UNKNOWN, 14077 .init = ctl_isc_init, 14078 .start = ctl_isc_start, 14079 .quiesce = ctl_isc_quiesce 14080}; 14081 14082/* 14083 * vim: ts=8 14084 */ 14085