ctl.c revision 268697
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 268697 2014-07-15 17:18:50Z 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 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 317 &worker_threads, 1, "Number of worker threads"); 318static int verbose = 0; 319TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 321 &verbose, 0, "Show SCSI errors returned to initiator"); 322 323/* 324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 325 * SCSI Ports (0x88), Block limits (0xB0) and 326 * Logical Block Provisioning (0xB2) 327 */ 328#define SCSI_EVPD_NUM_SUPPORTED_PAGES 6 329 330static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 331 int param); 332static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 333static int ctl_init(void); 334void ctl_shutdown(void); 335static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 336static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 337static void ctl_ioctl_online(void *arg); 338static void ctl_ioctl_offline(void *arg); 339static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 340static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 342static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 343static int ctl_ioctl_submit_wait(union ctl_io *io); 344static void ctl_ioctl_datamove(union ctl_io *io); 345static void ctl_ioctl_done(union ctl_io *io); 346static void ctl_ioctl_hard_startstop_callback(void *arg, 347 struct cfi_metatask *metatask); 348static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 349static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 350 struct ctl_ooa *ooa_hdr, 351 struct ctl_ooa_entry *kern_entries); 352static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 353 struct thread *td); 354uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 355uint32_t ctl_port_idx(int port_num); 356static uint32_t ctl_map_lun(int port_num, uint32_t lun); 357static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 358#ifdef unused 359static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 360 uint32_t targ_target, uint32_t targ_lun, 361 int can_wait); 362static void ctl_kfree_io(union ctl_io *io); 363#endif /* unused */ 364static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 365 struct ctl_be_lun *be_lun, struct ctl_id target_id); 366static int ctl_free_lun(struct ctl_lun *lun); 367static void ctl_create_lun(struct ctl_be_lun *be_lun); 368/** 369static void ctl_failover_change_pages(struct ctl_softc *softc, 370 struct ctl_scsiio *ctsio, int master); 371**/ 372 373static int ctl_do_mode_select(union ctl_io *io); 374static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 375 uint64_t res_key, uint64_t sa_res_key, 376 uint8_t type, uint32_t residx, 377 struct ctl_scsiio *ctsio, 378 struct scsi_per_res_out *cdb, 379 struct scsi_per_res_out_parms* param); 380static void ctl_pro_preempt_other(struct ctl_lun *lun, 381 union ctl_ha_msg *msg); 382static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 383static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 387 int alloc_len); 388static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 389 int alloc_len); 390static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 391static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 392static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 393static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 394static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 395static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 396 union ctl_io *ooa_io); 397static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 398 union ctl_io *starting_io); 399static int ctl_check_blocked(struct ctl_lun *lun); 400static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 401 struct ctl_lun *lun, 402 const struct ctl_cmd_entry *entry, 403 struct ctl_scsiio *ctsio); 404//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 405static void ctl_failover(void); 406static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 407 struct ctl_scsiio *ctsio); 408static int ctl_scsiio(struct ctl_scsiio *ctsio); 409 410static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 411static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 412 ctl_ua_type ua_type); 413static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_abort_task(union ctl_io *io); 416static int ctl_abort_task_set(union ctl_io *io); 417static int ctl_i_t_nexus_reset(union ctl_io *io); 418static void ctl_run_task(union ctl_io *io); 419#ifdef CTL_IO_DELAY 420static void ctl_datamove_timer_wakeup(void *arg); 421static void ctl_done_timer_wakeup(void *arg); 422#endif /* CTL_IO_DELAY */ 423 424static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 425static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 426static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 427static void ctl_datamove_remote_write(union ctl_io *io); 428static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 429static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 430static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 431static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 432 ctl_ha_dt_cb callback); 433static void ctl_datamove_remote_read(union ctl_io *io); 434static void ctl_datamove_remote(union ctl_io *io); 435static int ctl_process_done(union ctl_io *io); 436static void ctl_lun_thread(void *arg); 437static void ctl_work_thread(void *arg); 438static void ctl_enqueue_incoming(union ctl_io *io); 439static void ctl_enqueue_rtr(union ctl_io *io); 440static void ctl_enqueue_done(union ctl_io *io); 441static void ctl_enqueue_isc(union ctl_io *io); 442static const struct ctl_cmd_entry * 443 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 444static const struct ctl_cmd_entry * 445 ctl_validate_command(struct ctl_scsiio *ctsio); 446static int ctl_cmd_applicable(uint8_t lun_type, 447 const struct ctl_cmd_entry *entry); 448 449/* 450 * Load the serialization table. This isn't very pretty, but is probably 451 * the easiest way to do it. 452 */ 453#include "ctl_ser_table.c" 454 455/* 456 * We only need to define open, close and ioctl routines for this driver. 457 */ 458static struct cdevsw ctl_cdevsw = { 459 .d_version = D_VERSION, 460 .d_flags = 0, 461 .d_open = ctl_open, 462 .d_close = ctl_close, 463 .d_ioctl = ctl_ioctl, 464 .d_name = "ctl", 465}; 466 467 468MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 469MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 470 471static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 472 473static moduledata_t ctl_moduledata = { 474 "ctl", 475 ctl_module_event_handler, 476 NULL 477}; 478 479DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 480MODULE_VERSION(ctl, 1); 481 482static struct ctl_frontend ioctl_frontend = 483{ 484 .name = "ioctl", 485}; 486 487static void 488ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 489 union ctl_ha_msg *msg_info) 490{ 491 struct ctl_scsiio *ctsio; 492 493 if (msg_info->hdr.original_sc == NULL) { 494 printf("%s: original_sc == NULL!\n", __func__); 495 /* XXX KDM now what? */ 496 return; 497 } 498 499 ctsio = &msg_info->hdr.original_sc->scsiio; 500 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 501 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 502 ctsio->io_hdr.status = msg_info->hdr.status; 503 ctsio->scsi_status = msg_info->scsi.scsi_status; 504 ctsio->sense_len = msg_info->scsi.sense_len; 505 ctsio->sense_residual = msg_info->scsi.sense_residual; 506 ctsio->residual = msg_info->scsi.residual; 507 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 508 sizeof(ctsio->sense_data)); 509 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 510 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 511 ctl_enqueue_isc((union ctl_io *)ctsio); 512} 513 514static void 515ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 516 union ctl_ha_msg *msg_info) 517{ 518 struct ctl_scsiio *ctsio; 519 520 if (msg_info->hdr.serializing_sc == NULL) { 521 printf("%s: serializing_sc == NULL!\n", __func__); 522 /* XXX KDM now what? */ 523 return; 524 } 525 526 ctsio = &msg_info->hdr.serializing_sc->scsiio; 527#if 0 528 /* 529 * Attempt to catch the situation where an I/O has 530 * been freed, and we're using it again. 531 */ 532 if (ctsio->io_hdr.io_type == 0xff) { 533 union ctl_io *tmp_io; 534 tmp_io = (union ctl_io *)ctsio; 535 printf("%s: %p use after free!\n", __func__, 536 ctsio); 537 printf("%s: type %d msg %d cdb %x iptl: " 538 "%d:%d:%d:%d tag 0x%04x " 539 "flag %#x status %x\n", 540 __func__, 541 tmp_io->io_hdr.io_type, 542 tmp_io->io_hdr.msg_type, 543 tmp_io->scsiio.cdb[0], 544 tmp_io->io_hdr.nexus.initid.id, 545 tmp_io->io_hdr.nexus.targ_port, 546 tmp_io->io_hdr.nexus.targ_target.id, 547 tmp_io->io_hdr.nexus.targ_lun, 548 (tmp_io->io_hdr.io_type == 549 CTL_IO_TASK) ? 550 tmp_io->taskio.tag_num : 551 tmp_io->scsiio.tag_num, 552 tmp_io->io_hdr.flags, 553 tmp_io->io_hdr.status); 554 } 555#endif 556 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 557 ctl_enqueue_isc((union ctl_io *)ctsio); 558} 559 560/* 561 * ISC (Inter Shelf Communication) event handler. Events from the HA 562 * subsystem come in here. 563 */ 564static void 565ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 566{ 567 struct ctl_softc *ctl_softc; 568 union ctl_io *io; 569 struct ctl_prio *presio; 570 ctl_ha_status isc_status; 571 572 ctl_softc = control_softc; 573 io = NULL; 574 575 576#if 0 577 printf("CTL: Isc Msg event %d\n", event); 578#endif 579 if (event == CTL_HA_EVT_MSG_RECV) { 580 union ctl_ha_msg msg_info; 581 582 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 583 sizeof(msg_info), /*wait*/ 0); 584#if 0 585 printf("CTL: msg_type %d\n", msg_info.msg_type); 586#endif 587 if (isc_status != 0) { 588 printf("Error receiving message, status = %d\n", 589 isc_status); 590 return; 591 } 592 593 switch (msg_info.hdr.msg_type) { 594 case CTL_MSG_SERIALIZE: 595#if 0 596 printf("Serialize\n"); 597#endif 598 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 599 if (io == NULL) { 600 printf("ctl_isc_event_handler: can't allocate " 601 "ctl_io!\n"); 602 /* Bad Juju */ 603 /* Need to set busy and send msg back */ 604 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 605 msg_info.hdr.status = CTL_SCSI_ERROR; 606 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 607 msg_info.scsi.sense_len = 0; 608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 609 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 610 } 611 goto bailout; 612 } 613 ctl_zero_io(io); 614 // populate ctsio from msg_info 615 io->io_hdr.io_type = CTL_IO_SCSI; 616 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 617 io->io_hdr.original_sc = msg_info.hdr.original_sc; 618#if 0 619 printf("pOrig %x\n", (int)msg_info.original_sc); 620#endif 621 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 622 CTL_FLAG_IO_ACTIVE; 623 /* 624 * If we're in serialization-only mode, we don't 625 * want to go through full done processing. Thus 626 * the COPY flag. 627 * 628 * XXX KDM add another flag that is more specific. 629 */ 630 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 631 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 632 io->io_hdr.nexus = msg_info.hdr.nexus; 633#if 0 634 printf("targ %d, port %d, iid %d, lun %d\n", 635 io->io_hdr.nexus.targ_target.id, 636 io->io_hdr.nexus.targ_port, 637 io->io_hdr.nexus.initid.id, 638 io->io_hdr.nexus.targ_lun); 639#endif 640 io->scsiio.tag_num = msg_info.scsi.tag_num; 641 io->scsiio.tag_type = msg_info.scsi.tag_type; 642 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 643 CTL_MAX_CDBLEN); 644 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 645 const struct ctl_cmd_entry *entry; 646 647 entry = ctl_get_cmd_entry(&io->scsiio); 648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 649 io->io_hdr.flags |= 650 entry->flags & CTL_FLAG_DATA_MASK; 651 } 652 ctl_enqueue_isc(io); 653 break; 654 655 /* Performed on the Originating SC, XFER mode only */ 656 case CTL_MSG_DATAMOVE: { 657 struct ctl_sg_entry *sgl; 658 int i, j; 659 660 io = msg_info.hdr.original_sc; 661 if (io == NULL) { 662 printf("%s: original_sc == NULL!\n", __func__); 663 /* XXX KDM do something here */ 664 break; 665 } 666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 668 /* 669 * Keep track of this, we need to send it back over 670 * when the datamove is complete. 671 */ 672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 673 674 if (msg_info.dt.sg_sequence == 0) { 675 /* 676 * XXX KDM we use the preallocated S/G list 677 * here, but we'll need to change this to 678 * dynamic allocation if we need larger S/G 679 * lists. 680 */ 681 if (msg_info.dt.kern_sg_entries > 682 sizeof(io->io_hdr.remote_sglist) / 683 sizeof(io->io_hdr.remote_sglist[0])) { 684 printf("%s: number of S/G entries " 685 "needed %u > allocated num %zd\n", 686 __func__, 687 msg_info.dt.kern_sg_entries, 688 sizeof(io->io_hdr.remote_sglist)/ 689 sizeof(io->io_hdr.remote_sglist[0])); 690 691 /* 692 * XXX KDM send a message back to 693 * the other side to shut down the 694 * DMA. The error will come back 695 * through via the normal channel. 696 */ 697 break; 698 } 699 sgl = io->io_hdr.remote_sglist; 700 memset(sgl, 0, 701 sizeof(io->io_hdr.remote_sglist)); 702 703 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 704 705 io->scsiio.kern_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.rem_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.kern_data_len = 710 msg_info.dt.kern_data_len; 711 io->scsiio.kern_total_len = 712 msg_info.dt.kern_total_len; 713 io->scsiio.kern_data_resid = 714 msg_info.dt.kern_data_resid; 715 io->scsiio.kern_rel_offset = 716 msg_info.dt.kern_rel_offset; 717 /* 718 * Clear out per-DMA flags. 719 */ 720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 721 /* 722 * Add per-DMA flags that are set for this 723 * particular DMA request. 724 */ 725 io->io_hdr.flags |= msg_info.dt.flags & 726 CTL_FLAG_RDMA_MASK; 727 } else 728 sgl = (struct ctl_sg_entry *) 729 io->scsiio.kern_data_ptr; 730 731 for (i = msg_info.dt.sent_sg_entries, j = 0; 732 i < (msg_info.dt.sent_sg_entries + 733 msg_info.dt.cur_sg_entries); i++, j++) { 734 sgl[i].addr = msg_info.dt.sg_list[j].addr; 735 sgl[i].len = msg_info.dt.sg_list[j].len; 736 737#if 0 738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 739 __func__, 740 msg_info.dt.sg_list[j].addr, 741 msg_info.dt.sg_list[j].len, 742 sgl[i].addr, sgl[i].len, j, i); 743#endif 744 } 745#if 0 746 memcpy(&sgl[msg_info.dt.sent_sg_entries], 747 msg_info.dt.sg_list, 748 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 749#endif 750 751 /* 752 * If this is the last piece of the I/O, we've got 753 * the full S/G list. Queue processing in the thread. 754 * Otherwise wait for the next piece. 755 */ 756 if (msg_info.dt.sg_last != 0) 757 ctl_enqueue_isc(io); 758 break; 759 } 760 /* Performed on the Serializing (primary) SC, XFER mode only */ 761 case CTL_MSG_DATAMOVE_DONE: { 762 if (msg_info.hdr.serializing_sc == NULL) { 763 printf("%s: serializing_sc == NULL!\n", 764 __func__); 765 /* XXX KDM now what? */ 766 break; 767 } 768 /* 769 * We grab the sense information here in case 770 * there was a failure, so we can return status 771 * back to the initiator. 772 */ 773 io = msg_info.hdr.serializing_sc; 774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 775 io->io_hdr.status = msg_info.hdr.status; 776 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 777 io->scsiio.sense_len = msg_info.scsi.sense_len; 778 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 779 io->io_hdr.port_status = msg_info.scsi.fetd_status; 780 io->scsiio.residual = msg_info.scsi.residual; 781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 782 sizeof(io->scsiio.sense_data)); 783 ctl_enqueue_isc(io); 784 break; 785 } 786 787 /* Preformed on Originating SC, SER_ONLY mode */ 788 case CTL_MSG_R2R: 789 io = msg_info.hdr.original_sc; 790 if (io == NULL) { 791 printf("%s: Major Bummer\n", __func__); 792 return; 793 } else { 794#if 0 795 printf("pOrig %x\n",(int) ctsio); 796#endif 797 } 798 io->io_hdr.msg_type = CTL_MSG_R2R; 799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 800 ctl_enqueue_isc(io); 801 break; 802 803 /* 804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 805 * mode. 806 * Performed on the Originating (i.e. secondary) SC in XFER 807 * mode 808 */ 809 case CTL_MSG_FINISH_IO: 810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 811 ctl_isc_handler_finish_xfer(ctl_softc, 812 &msg_info); 813 else 814 ctl_isc_handler_finish_ser_only(ctl_softc, 815 &msg_info); 816 break; 817 818 /* Preformed on Originating SC */ 819 case CTL_MSG_BAD_JUJU: 820 io = msg_info.hdr.original_sc; 821 if (io == NULL) { 822 printf("%s: Bad JUJU!, original_sc is NULL!\n", 823 __func__); 824 break; 825 } 826 ctl_copy_sense_data(&msg_info, io); 827 /* 828 * IO should have already been cleaned up on other 829 * SC so clear this flag so we won't send a message 830 * back to finish the IO there. 831 */ 832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 834 835 /* io = msg_info.hdr.serializing_sc; */ 836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 837 ctl_enqueue_isc(io); 838 break; 839 840 /* Handle resets sent from the other side */ 841 case CTL_MSG_MANAGE_TASKS: { 842 struct ctl_taskio *taskio; 843 taskio = (struct ctl_taskio *)ctl_alloc_io( 844 (void *)ctl_softc->othersc_pool); 845 if (taskio == NULL) { 846 printf("ctl_isc_event_handler: can't allocate " 847 "ctl_io!\n"); 848 /* Bad Juju */ 849 /* should I just call the proper reset func 850 here??? */ 851 goto bailout; 852 } 853 ctl_zero_io((union ctl_io *)taskio); 854 taskio->io_hdr.io_type = CTL_IO_TASK; 855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 856 taskio->io_hdr.nexus = msg_info.hdr.nexus; 857 taskio->task_action = msg_info.task.task_action; 858 taskio->tag_num = msg_info.task.tag_num; 859 taskio->tag_type = msg_info.task.tag_type; 860#ifdef CTL_TIME_IO 861 taskio->io_hdr.start_time = time_uptime; 862 getbintime(&taskio->io_hdr.start_bt); 863#if 0 864 cs_prof_gettime(&taskio->io_hdr.start_ticks); 865#endif 866#endif /* CTL_TIME_IO */ 867 ctl_run_task((union ctl_io *)taskio); 868 break; 869 } 870 /* Persistent Reserve action which needs attention */ 871 case CTL_MSG_PERS_ACTION: 872 presio = (struct ctl_prio *)ctl_alloc_io( 873 (void *)ctl_softc->othersc_pool); 874 if (presio == NULL) { 875 printf("ctl_isc_event_handler: can't allocate " 876 "ctl_io!\n"); 877 /* Bad Juju */ 878 /* Need to set busy and send msg back */ 879 goto bailout; 880 } 881 ctl_zero_io((union ctl_io *)presio); 882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 883 presio->pr_msg = msg_info.pr; 884 ctl_enqueue_isc((union ctl_io *)presio); 885 break; 886 case CTL_MSG_SYNC_FE: 887 rcv_sync_msg = 1; 888 break; 889 case CTL_MSG_APS_LOCK: { 890 // It's quicker to execute this then to 891 // queue it. 892 struct ctl_lun *lun; 893 struct ctl_page_index *page_index; 894 struct copan_aps_subpage *current_sp; 895 uint32_t targ_lun; 896 897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 898 lun = ctl_softc->ctl_luns[targ_lun]; 899 mtx_lock(&lun->lun_lock); 900 page_index = &lun->mode_pages.index[index_to_aps_page]; 901 current_sp = (struct copan_aps_subpage *) 902 (page_index->page_data + 903 (page_index->page_len * CTL_PAGE_CURRENT)); 904 905 current_sp->lock_active = msg_info.aps.lock_flag; 906 mtx_unlock(&lun->lun_lock); 907 break; 908 } 909 default: 910 printf("How did I get here?\n"); 911 } 912 } else if (event == CTL_HA_EVT_MSG_SENT) { 913 if (param != CTL_HA_STATUS_SUCCESS) { 914 printf("Bad status from ctl_ha_msg_send status %d\n", 915 param); 916 } 917 return; 918 } else if (event == CTL_HA_EVT_DISCONNECT) { 919 printf("CTL: Got a disconnect from Isc\n"); 920 return; 921 } else { 922 printf("ctl_isc_event_handler: Unknown event %d\n", event); 923 return; 924 } 925 926bailout: 927 return; 928} 929 930static void 931ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 932{ 933 struct scsi_sense_data *sense; 934 935 sense = &dest->scsiio.sense_data; 936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 937 dest->scsiio.scsi_status = src->scsi.scsi_status; 938 dest->scsiio.sense_len = src->scsi.sense_len; 939 dest->io_hdr.status = src->hdr.status; 940} 941 942static int 943ctl_init(void) 944{ 945 struct ctl_softc *softc; 946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 947 struct ctl_port *port; 948 uint8_t sc_id =0; 949 int i, error, retval; 950 //int isc_retval; 951 952 retval = 0; 953 ctl_pause_rtr = 0; 954 rcv_sync_msg = 0; 955 956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 957 M_WAITOK | M_ZERO); 958 softc = control_softc; 959 960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 961 "cam/ctl"); 962 963 softc->dev->si_drv1 = softc; 964 965 /* 966 * By default, return a "bad LUN" peripheral qualifier for unknown 967 * LUNs. The user can override this default using the tunable or 968 * sysctl. See the comment in ctl_inquiry_std() for more details. 969 */ 970 softc->inquiry_pq_no_lun = 1; 971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 972 &softc->inquiry_pq_no_lun); 973 sysctl_ctx_init(&softc->sysctl_ctx); 974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 976 CTLFLAG_RD, 0, "CAM Target Layer"); 977 978 if (softc->sysctl_tree == NULL) { 979 printf("%s: unable to allocate sysctl tree\n", __func__); 980 destroy_dev(softc->dev); 981 free(control_softc, M_DEVBUF); 982 control_softc = NULL; 983 return (ENOMEM); 984 } 985 986 SYSCTL_ADD_INT(&softc->sysctl_ctx, 987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 988 "inquiry_pq_no_lun", CTLFLAG_RW, 989 &softc->inquiry_pq_no_lun, 0, 990 "Report no lun possible for invalid LUNs"); 991 992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 994 softc->open_count = 0; 995 996 /* 997 * Default to actually sending a SYNCHRONIZE CACHE command down to 998 * the drive. 999 */ 1000 softc->flags = CTL_FLAG_REAL_SYNC; 1001 1002 /* 1003 * In Copan's HA scheme, the "master" and "slave" roles are 1004 * figured out through the slot the controller is in. Although it 1005 * is an active/active system, someone has to be in charge. 1006 */ 1007#ifdef NEEDTOPORT 1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1009#endif 1010 1011 if (sc_id == 0) { 1012 softc->flags |= CTL_FLAG_MASTER_SHELF; 1013 persis_offset = 0; 1014 } else 1015 persis_offset = CTL_MAX_INITIATORS; 1016 1017 /* 1018 * XXX KDM need to figure out where we want to get our target ID 1019 * and WWID. Is it different on each port? 1020 */ 1021 softc->target.id = 0; 1022 softc->target.wwid[0] = 0x12345678; 1023 softc->target.wwid[1] = 0x87654321; 1024 STAILQ_INIT(&softc->lun_list); 1025 STAILQ_INIT(&softc->pending_lun_queue); 1026 STAILQ_INIT(&softc->fe_list); 1027 STAILQ_INIT(&softc->port_list); 1028 STAILQ_INIT(&softc->be_list); 1029 STAILQ_INIT(&softc->io_pools); 1030 1031 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1032 &internal_pool)!= 0){ 1033 printf("ctl: can't allocate %d entry internal pool, " 1034 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1035 return (ENOMEM); 1036 } 1037 1038 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1039 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1040 printf("ctl: can't allocate %d entry emergency pool, " 1041 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1042 ctl_pool_free(internal_pool); 1043 return (ENOMEM); 1044 } 1045 1046 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1047 &other_pool) != 0) 1048 { 1049 printf("ctl: can't allocate %d entry other SC pool, " 1050 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1051 ctl_pool_free(internal_pool); 1052 ctl_pool_free(emergency_pool); 1053 return (ENOMEM); 1054 } 1055 1056 softc->internal_pool = internal_pool; 1057 softc->emergency_pool = emergency_pool; 1058 softc->othersc_pool = other_pool; 1059 1060 if (worker_threads <= 0) 1061 worker_threads = max(1, mp_ncpus / 4); 1062 if (worker_threads > CTL_MAX_THREADS) 1063 worker_threads = CTL_MAX_THREADS; 1064 1065 for (i = 0; i < worker_threads; i++) { 1066 struct ctl_thread *thr = &softc->threads[i]; 1067 1068 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1069 thr->ctl_softc = softc; 1070 STAILQ_INIT(&thr->incoming_queue); 1071 STAILQ_INIT(&thr->rtr_queue); 1072 STAILQ_INIT(&thr->done_queue); 1073 STAILQ_INIT(&thr->isc_queue); 1074 1075 error = kproc_kthread_add(ctl_work_thread, thr, 1076 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1077 if (error != 0) { 1078 printf("error creating CTL work thread!\n"); 1079 ctl_pool_free(internal_pool); 1080 ctl_pool_free(emergency_pool); 1081 ctl_pool_free(other_pool); 1082 return (error); 1083 } 1084 } 1085 error = kproc_kthread_add(ctl_lun_thread, softc, 1086 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1087 if (error != 0) { 1088 printf("error creating CTL lun thread!\n"); 1089 ctl_pool_free(internal_pool); 1090 ctl_pool_free(emergency_pool); 1091 ctl_pool_free(other_pool); 1092 return (error); 1093 } 1094 if (bootverbose) 1095 printf("ctl: CAM Target Layer loaded\n"); 1096 1097 /* 1098 * Initialize the ioctl front end. 1099 */ 1100 ctl_frontend_register(&ioctl_frontend); 1101 port = &softc->ioctl_info.port; 1102 port->frontend = &ioctl_frontend; 1103 sprintf(softc->ioctl_info.port_name, "ioctl"); 1104 port->port_type = CTL_PORT_IOCTL; 1105 port->num_requested_ctl_io = 100; 1106 port->port_name = softc->ioctl_info.port_name; 1107 port->port_online = ctl_ioctl_online; 1108 port->port_offline = ctl_ioctl_offline; 1109 port->onoff_arg = &softc->ioctl_info; 1110 port->lun_enable = ctl_ioctl_lun_enable; 1111 port->lun_disable = ctl_ioctl_lun_disable; 1112 port->targ_lun_arg = &softc->ioctl_info; 1113 port->fe_datamove = ctl_ioctl_datamove; 1114 port->fe_done = ctl_ioctl_done; 1115 port->max_targets = 15; 1116 port->max_target_id = 15; 1117 1118 if (ctl_port_register(&softc->ioctl_info.port, 1119 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1120 printf("ctl: ioctl front end registration failed, will " 1121 "continue anyway\n"); 1122 } 1123 1124#ifdef CTL_IO_DELAY 1125 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1126 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1127 sizeof(struct callout), CTL_TIMER_BYTES); 1128 return (EINVAL); 1129 } 1130#endif /* CTL_IO_DELAY */ 1131 1132 return (0); 1133} 1134 1135void 1136ctl_shutdown(void) 1137{ 1138 struct ctl_softc *softc; 1139 struct ctl_lun *lun, *next_lun; 1140 struct ctl_io_pool *pool; 1141 1142 softc = (struct ctl_softc *)control_softc; 1143 1144 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1145 printf("ctl: ioctl front end deregistration failed\n"); 1146 1147 mtx_lock(&softc->ctl_lock); 1148 1149 /* 1150 * Free up each LUN. 1151 */ 1152 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1153 next_lun = STAILQ_NEXT(lun, links); 1154 ctl_free_lun(lun); 1155 } 1156 1157 mtx_unlock(&softc->ctl_lock); 1158 1159 ctl_frontend_deregister(&ioctl_frontend); 1160 1161 /* 1162 * This will rip the rug out from under any FETDs or anyone else 1163 * that has a pool allocated. Since we increment our module 1164 * refcount any time someone outside the main CTL module allocates 1165 * a pool, we shouldn't have any problems here. The user won't be 1166 * able to unload the CTL module until client modules have 1167 * successfully unloaded. 1168 */ 1169 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1170 ctl_pool_free(pool); 1171 1172#if 0 1173 ctl_shutdown_thread(softc->work_thread); 1174 mtx_destroy(&softc->queue_lock); 1175#endif 1176 1177 mtx_destroy(&softc->pool_lock); 1178 mtx_destroy(&softc->ctl_lock); 1179 1180 destroy_dev(softc->dev); 1181 1182 sysctl_ctx_free(&softc->sysctl_ctx); 1183 1184 free(control_softc, M_DEVBUF); 1185 control_softc = NULL; 1186 1187 if (bootverbose) 1188 printf("ctl: CAM Target Layer unloaded\n"); 1189} 1190 1191static int 1192ctl_module_event_handler(module_t mod, int what, void *arg) 1193{ 1194 1195 switch (what) { 1196 case MOD_LOAD: 1197 return (ctl_init()); 1198 case MOD_UNLOAD: 1199 return (EBUSY); 1200 default: 1201 return (EOPNOTSUPP); 1202 } 1203} 1204 1205/* 1206 * XXX KDM should we do some access checks here? Bump a reference count to 1207 * prevent a CTL module from being unloaded while someone has it open? 1208 */ 1209static int 1210ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1211{ 1212 return (0); 1213} 1214 1215static int 1216ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1217{ 1218 return (0); 1219} 1220 1221int 1222ctl_port_enable(ctl_port_type port_type) 1223{ 1224 struct ctl_softc *softc; 1225 struct ctl_port *port; 1226 1227 if (ctl_is_single == 0) { 1228 union ctl_ha_msg msg_info; 1229 int isc_retval; 1230 1231#if 0 1232 printf("%s: HA mode, synchronizing frontend enable\n", 1233 __func__); 1234#endif 1235 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1236 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1237 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1238 printf("Sync msg send error retval %d\n", isc_retval); 1239 } 1240 if (!rcv_sync_msg) { 1241 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1242 sizeof(msg_info), 1); 1243 } 1244#if 0 1245 printf("CTL:Frontend Enable\n"); 1246 } else { 1247 printf("%s: single mode, skipping frontend synchronization\n", 1248 __func__); 1249#endif 1250 } 1251 1252 softc = control_softc; 1253 1254 STAILQ_FOREACH(port, &softc->port_list, links) { 1255 if (port_type & port->port_type) 1256 { 1257#if 0 1258 printf("port %d\n", port->targ_port); 1259#endif 1260 ctl_port_online(port); 1261 } 1262 } 1263 1264 return (0); 1265} 1266 1267int 1268ctl_port_disable(ctl_port_type port_type) 1269{ 1270 struct ctl_softc *softc; 1271 struct ctl_port *port; 1272 1273 softc = control_softc; 1274 1275 STAILQ_FOREACH(port, &softc->port_list, links) { 1276 if (port_type & port->port_type) 1277 ctl_port_offline(port); 1278 } 1279 1280 return (0); 1281} 1282 1283/* 1284 * Returns 0 for success, 1 for failure. 1285 * Currently the only failure mode is if there aren't enough entries 1286 * allocated. So, in case of a failure, look at num_entries_dropped, 1287 * reallocate and try again. 1288 */ 1289int 1290ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1291 int *num_entries_filled, int *num_entries_dropped, 1292 ctl_port_type port_type, int no_virtual) 1293{ 1294 struct ctl_softc *softc; 1295 struct ctl_port *port; 1296 int entries_dropped, entries_filled; 1297 int retval; 1298 int i; 1299 1300 softc = control_softc; 1301 1302 retval = 0; 1303 entries_filled = 0; 1304 entries_dropped = 0; 1305 1306 i = 0; 1307 mtx_lock(&softc->ctl_lock); 1308 STAILQ_FOREACH(port, &softc->port_list, links) { 1309 struct ctl_port_entry *entry; 1310 1311 if ((port->port_type & port_type) == 0) 1312 continue; 1313 1314 if ((no_virtual != 0) 1315 && (port->virtual_port != 0)) 1316 continue; 1317 1318 if (entries_filled >= num_entries_alloced) { 1319 entries_dropped++; 1320 continue; 1321 } 1322 entry = &entries[i]; 1323 1324 entry->port_type = port->port_type; 1325 strlcpy(entry->port_name, port->port_name, 1326 sizeof(entry->port_name)); 1327 entry->physical_port = port->physical_port; 1328 entry->virtual_port = port->virtual_port; 1329 entry->wwnn = port->wwnn; 1330 entry->wwpn = port->wwpn; 1331 1332 i++; 1333 entries_filled++; 1334 } 1335 1336 mtx_unlock(&softc->ctl_lock); 1337 1338 if (entries_dropped > 0) 1339 retval = 1; 1340 1341 *num_entries_dropped = entries_dropped; 1342 *num_entries_filled = entries_filled; 1343 1344 return (retval); 1345} 1346 1347static void 1348ctl_ioctl_online(void *arg) 1349{ 1350 struct ctl_ioctl_info *ioctl_info; 1351 1352 ioctl_info = (struct ctl_ioctl_info *)arg; 1353 1354 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1355} 1356 1357static void 1358ctl_ioctl_offline(void *arg) 1359{ 1360 struct ctl_ioctl_info *ioctl_info; 1361 1362 ioctl_info = (struct ctl_ioctl_info *)arg; 1363 1364 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1365} 1366 1367/* 1368 * Remove an initiator by port number and initiator ID. 1369 * Returns 0 for success, -1 for failure. 1370 */ 1371int 1372ctl_remove_initiator(struct ctl_port *port, int iid) 1373{ 1374 struct ctl_softc *softc = control_softc; 1375 1376 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1377 1378 if (iid > CTL_MAX_INIT_PER_PORT) { 1379 printf("%s: initiator ID %u > maximun %u!\n", 1380 __func__, iid, CTL_MAX_INIT_PER_PORT); 1381 return (-1); 1382 } 1383 1384 mtx_lock(&softc->ctl_lock); 1385 port->wwpn_iid[iid].in_use--; 1386 port->wwpn_iid[iid].last_use = time_uptime; 1387 mtx_unlock(&softc->ctl_lock); 1388 1389 return (0); 1390} 1391 1392/* 1393 * Add an initiator to the initiator map. 1394 * Returns iid for success, < 0 for failure. 1395 */ 1396int 1397ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1398{ 1399 struct ctl_softc *softc = control_softc; 1400 time_t best_time; 1401 int i, best; 1402 1403 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1404 1405 if (iid >= CTL_MAX_INIT_PER_PORT) { 1406 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1407 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1408 free(name, M_CTL); 1409 return (-1); 1410 } 1411 1412 mtx_lock(&softc->ctl_lock); 1413 1414 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1415 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1416 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1417 iid = i; 1418 break; 1419 } 1420 if (name != NULL && port->wwpn_iid[i].name != NULL && 1421 strcmp(name, port->wwpn_iid[i].name) == 0) { 1422 iid = i; 1423 break; 1424 } 1425 } 1426 } 1427 1428 if (iid < 0) { 1429 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1430 if (port->wwpn_iid[i].in_use == 0 && 1431 port->wwpn_iid[i].wwpn == 0 && 1432 port->wwpn_iid[i].name == NULL) { 1433 iid = i; 1434 break; 1435 } 1436 } 1437 } 1438 1439 if (iid < 0) { 1440 best = -1; 1441 best_time = INT32_MAX; 1442 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1443 if (port->wwpn_iid[i].in_use == 0) { 1444 if (port->wwpn_iid[i].last_use < best_time) { 1445 best = i; 1446 best_time = port->wwpn_iid[i].last_use; 1447 } 1448 } 1449 } 1450 iid = best; 1451 } 1452 1453 if (iid < 0) { 1454 mtx_unlock(&softc->ctl_lock); 1455 free(name, M_CTL); 1456 return (-2); 1457 } 1458 1459 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1460 /* 1461 * This is not an error yet. 1462 */ 1463 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1464#if 0 1465 printf("%s: port %d iid %u WWPN %#jx arrived" 1466 " again\n", __func__, port->targ_port, 1467 iid, (uintmax_t)wwpn); 1468#endif 1469 goto take; 1470 } 1471 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1472 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1473#if 0 1474 printf("%s: port %d iid %u name '%s' arrived" 1475 " again\n", __func__, port->targ_port, 1476 iid, name); 1477#endif 1478 goto take; 1479 } 1480 1481 /* 1482 * This is an error, but what do we do about it? The 1483 * driver is telling us we have a new WWPN for this 1484 * initiator ID, so we pretty much need to use it. 1485 */ 1486 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1487 " but WWPN %#jx '%s' is still at that address\n", 1488 __func__, port->targ_port, iid, wwpn, name, 1489 (uintmax_t)port->wwpn_iid[iid].wwpn, 1490 port->wwpn_iid[iid].name); 1491 1492 /* 1493 * XXX KDM clear have_ca and ua_pending on each LUN for 1494 * this initiator. 1495 */ 1496 } 1497take: 1498 free(port->wwpn_iid[iid].name, M_CTL); 1499 port->wwpn_iid[iid].name = name; 1500 port->wwpn_iid[iid].wwpn = wwpn; 1501 port->wwpn_iid[iid].in_use++; 1502 mtx_unlock(&softc->ctl_lock); 1503 1504 return (iid); 1505} 1506 1507static int 1508ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1509{ 1510 int len; 1511 1512 switch (port->port_type) { 1513 case CTL_PORT_FC: 1514 { 1515 struct scsi_transportid_fcp *id = 1516 (struct scsi_transportid_fcp *)buf; 1517 if (port->wwpn_iid[iid].wwpn == 0) 1518 return (0); 1519 memset(id, 0, sizeof(*id)); 1520 id->format_protocol = SCSI_PROTO_FC; 1521 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1522 return (sizeof(*id)); 1523 } 1524 case CTL_PORT_ISCSI: 1525 { 1526 struct scsi_transportid_iscsi_port *id = 1527 (struct scsi_transportid_iscsi_port *)buf; 1528 if (port->wwpn_iid[iid].name == NULL) 1529 return (0); 1530 memset(id, 0, 256); 1531 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1532 SCSI_PROTO_ISCSI; 1533 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1534 len = roundup2(min(len, 252), 4); 1535 scsi_ulto2b(len, id->additional_length); 1536 return (sizeof(*id) + len); 1537 } 1538 case CTL_PORT_SAS: 1539 { 1540 struct scsi_transportid_sas *id = 1541 (struct scsi_transportid_sas *)buf; 1542 if (port->wwpn_iid[iid].wwpn == 0) 1543 return (0); 1544 memset(id, 0, sizeof(*id)); 1545 id->format_protocol = SCSI_PROTO_SAS; 1546 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1547 return (sizeof(*id)); 1548 } 1549 default: 1550 { 1551 struct scsi_transportid_spi *id = 1552 (struct scsi_transportid_spi *)buf; 1553 memset(id, 0, sizeof(*id)); 1554 id->format_protocol = SCSI_PROTO_SPI; 1555 scsi_ulto2b(iid, id->scsi_addr); 1556 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1557 return (sizeof(*id)); 1558 } 1559 } 1560} 1561 1562static int 1563ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1564{ 1565 return (0); 1566} 1567 1568static int 1569ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1570{ 1571 return (0); 1572} 1573 1574/* 1575 * Data movement routine for the CTL ioctl frontend port. 1576 */ 1577static int 1578ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1579{ 1580 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1581 struct ctl_sg_entry ext_entry, kern_entry; 1582 int ext_sglen, ext_sg_entries, kern_sg_entries; 1583 int ext_sg_start, ext_offset; 1584 int len_to_copy, len_copied; 1585 int kern_watermark, ext_watermark; 1586 int ext_sglist_malloced; 1587 int i, j; 1588 1589 ext_sglist_malloced = 0; 1590 ext_sg_start = 0; 1591 ext_offset = 0; 1592 1593 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1594 1595 /* 1596 * If this flag is set, fake the data transfer. 1597 */ 1598 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1599 ctsio->ext_data_filled = ctsio->ext_data_len; 1600 goto bailout; 1601 } 1602 1603 /* 1604 * To simplify things here, if we have a single buffer, stick it in 1605 * a S/G entry and just make it a single entry S/G list. 1606 */ 1607 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1608 int len_seen; 1609 1610 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1611 1612 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1613 M_WAITOK); 1614 ext_sglist_malloced = 1; 1615 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1616 ext_sglen) != 0) { 1617 ctl_set_internal_failure(ctsio, 1618 /*sks_valid*/ 0, 1619 /*retry_count*/ 0); 1620 goto bailout; 1621 } 1622 ext_sg_entries = ctsio->ext_sg_entries; 1623 len_seen = 0; 1624 for (i = 0; i < ext_sg_entries; i++) { 1625 if ((len_seen + ext_sglist[i].len) >= 1626 ctsio->ext_data_filled) { 1627 ext_sg_start = i; 1628 ext_offset = ctsio->ext_data_filled - len_seen; 1629 break; 1630 } 1631 len_seen += ext_sglist[i].len; 1632 } 1633 } else { 1634 ext_sglist = &ext_entry; 1635 ext_sglist->addr = ctsio->ext_data_ptr; 1636 ext_sglist->len = ctsio->ext_data_len; 1637 ext_sg_entries = 1; 1638 ext_sg_start = 0; 1639 ext_offset = ctsio->ext_data_filled; 1640 } 1641 1642 if (ctsio->kern_sg_entries > 0) { 1643 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1644 kern_sg_entries = ctsio->kern_sg_entries; 1645 } else { 1646 kern_sglist = &kern_entry; 1647 kern_sglist->addr = ctsio->kern_data_ptr; 1648 kern_sglist->len = ctsio->kern_data_len; 1649 kern_sg_entries = 1; 1650 } 1651 1652 1653 kern_watermark = 0; 1654 ext_watermark = ext_offset; 1655 len_copied = 0; 1656 for (i = ext_sg_start, j = 0; 1657 i < ext_sg_entries && j < kern_sg_entries;) { 1658 uint8_t *ext_ptr, *kern_ptr; 1659 1660 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1661 kern_sglist[j].len - kern_watermark); 1662 1663 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1664 ext_ptr = ext_ptr + ext_watermark; 1665 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1666 /* 1667 * XXX KDM fix this! 1668 */ 1669 panic("need to implement bus address support"); 1670#if 0 1671 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1672#endif 1673 } else 1674 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1675 kern_ptr = kern_ptr + kern_watermark; 1676 1677 kern_watermark += len_to_copy; 1678 ext_watermark += len_to_copy; 1679 1680 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1681 CTL_FLAG_DATA_IN) { 1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1683 "bytes to user\n", len_to_copy)); 1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1685 "to %p\n", kern_ptr, ext_ptr)); 1686 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1687 ctl_set_internal_failure(ctsio, 1688 /*sks_valid*/ 0, 1689 /*retry_count*/ 0); 1690 goto bailout; 1691 } 1692 } else { 1693 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1694 "bytes from user\n", len_to_copy)); 1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1696 "to %p\n", ext_ptr, kern_ptr)); 1697 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1698 ctl_set_internal_failure(ctsio, 1699 /*sks_valid*/ 0, 1700 /*retry_count*/0); 1701 goto bailout; 1702 } 1703 } 1704 1705 len_copied += len_to_copy; 1706 1707 if (ext_sglist[i].len == ext_watermark) { 1708 i++; 1709 ext_watermark = 0; 1710 } 1711 1712 if (kern_sglist[j].len == kern_watermark) { 1713 j++; 1714 kern_watermark = 0; 1715 } 1716 } 1717 1718 ctsio->ext_data_filled += len_copied; 1719 1720 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1721 "kern_sg_entries: %d\n", ext_sg_entries, 1722 kern_sg_entries)); 1723 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1724 "kern_data_len = %d\n", ctsio->ext_data_len, 1725 ctsio->kern_data_len)); 1726 1727 1728 /* XXX KDM set residual?? */ 1729bailout: 1730 1731 if (ext_sglist_malloced != 0) 1732 free(ext_sglist, M_CTL); 1733 1734 return (CTL_RETVAL_COMPLETE); 1735} 1736 1737/* 1738 * Serialize a command that went down the "wrong" side, and so was sent to 1739 * this controller for execution. The logic is a little different than the 1740 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1741 * sent back to the other side, but in the success case, we execute the 1742 * command on this side (XFER mode) or tell the other side to execute it 1743 * (SER_ONLY mode). 1744 */ 1745static int 1746ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1747{ 1748 struct ctl_softc *ctl_softc; 1749 union ctl_ha_msg msg_info; 1750 struct ctl_lun *lun; 1751 int retval = 0; 1752 uint32_t targ_lun; 1753 1754 ctl_softc = control_softc; 1755 1756 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1757 lun = ctl_softc->ctl_luns[targ_lun]; 1758 if (lun==NULL) 1759 { 1760 /* 1761 * Why isn't LUN defined? The other side wouldn't 1762 * send a cmd if the LUN is undefined. 1763 */ 1764 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1765 1766 /* "Logical unit not supported" */ 1767 ctl_set_sense_data(&msg_info.scsi.sense_data, 1768 lun, 1769 /*sense_format*/SSD_TYPE_NONE, 1770 /*current_error*/ 1, 1771 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1772 /*asc*/ 0x25, 1773 /*ascq*/ 0x00, 1774 SSD_ELEM_NONE); 1775 1776 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1777 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1778 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1779 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1780 msg_info.hdr.serializing_sc = NULL; 1781 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1782 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1783 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1784 } 1785 return(1); 1786 1787 } 1788 1789 mtx_lock(&lun->lun_lock); 1790 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1791 1792 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1793 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1794 ooa_links))) { 1795 case CTL_ACTION_BLOCK: 1796 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1797 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1798 blocked_links); 1799 break; 1800 case CTL_ACTION_PASS: 1801 case CTL_ACTION_SKIP: 1802 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1803 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1804 ctl_enqueue_rtr((union ctl_io *)ctsio); 1805 } else { 1806 1807 /* send msg back to other side */ 1808 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1809 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1810 msg_info.hdr.msg_type = CTL_MSG_R2R; 1811#if 0 1812 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1813#endif 1814 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1815 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1816 } 1817 } 1818 break; 1819 case CTL_ACTION_OVERLAP: 1820 /* OVERLAPPED COMMANDS ATTEMPTED */ 1821 ctl_set_sense_data(&msg_info.scsi.sense_data, 1822 lun, 1823 /*sense_format*/SSD_TYPE_NONE, 1824 /*current_error*/ 1, 1825 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1826 /*asc*/ 0x4E, 1827 /*ascq*/ 0x00, 1828 SSD_ELEM_NONE); 1829 1830 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1831 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1832 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1833 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1834 msg_info.hdr.serializing_sc = NULL; 1835 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1836#if 0 1837 printf("BAD JUJU:Major Bummer Overlap\n"); 1838#endif 1839 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1840 retval = 1; 1841 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1842 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1843 } 1844 break; 1845 case CTL_ACTION_OVERLAP_TAG: 1846 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1847 ctl_set_sense_data(&msg_info.scsi.sense_data, 1848 lun, 1849 /*sense_format*/SSD_TYPE_NONE, 1850 /*current_error*/ 1, 1851 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1852 /*asc*/ 0x4D, 1853 /*ascq*/ ctsio->tag_num & 0xff, 1854 SSD_ELEM_NONE); 1855 1856 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1857 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1858 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1859 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1860 msg_info.hdr.serializing_sc = NULL; 1861 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1862#if 0 1863 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1864#endif 1865 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1866 retval = 1; 1867 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1868 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1869 } 1870 break; 1871 case CTL_ACTION_ERROR: 1872 default: 1873 /* "Internal target failure" */ 1874 ctl_set_sense_data(&msg_info.scsi.sense_data, 1875 lun, 1876 /*sense_format*/SSD_TYPE_NONE, 1877 /*current_error*/ 1, 1878 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1879 /*asc*/ 0x44, 1880 /*ascq*/ 0x00, 1881 SSD_ELEM_NONE); 1882 1883 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1884 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1885 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1886 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1887 msg_info.hdr.serializing_sc = NULL; 1888 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1889#if 0 1890 printf("BAD JUJU:Major Bummer HW Error\n"); 1891#endif 1892 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1893 retval = 1; 1894 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1895 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1896 } 1897 break; 1898 } 1899 mtx_unlock(&lun->lun_lock); 1900 return (retval); 1901} 1902 1903static int 1904ctl_ioctl_submit_wait(union ctl_io *io) 1905{ 1906 struct ctl_fe_ioctl_params params; 1907 ctl_fe_ioctl_state last_state; 1908 int done, retval; 1909 1910 retval = 0; 1911 1912 bzero(¶ms, sizeof(params)); 1913 1914 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1915 cv_init(¶ms.sem, "ctlioccv"); 1916 params.state = CTL_IOCTL_INPROG; 1917 last_state = params.state; 1918 1919 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1920 1921 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1922 1923 /* This shouldn't happen */ 1924 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1925 return (retval); 1926 1927 done = 0; 1928 1929 do { 1930 mtx_lock(¶ms.ioctl_mtx); 1931 /* 1932 * Check the state here, and don't sleep if the state has 1933 * already changed (i.e. wakeup has already occured, but we 1934 * weren't waiting yet). 1935 */ 1936 if (params.state == last_state) { 1937 /* XXX KDM cv_wait_sig instead? */ 1938 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1939 } 1940 last_state = params.state; 1941 1942 switch (params.state) { 1943 case CTL_IOCTL_INPROG: 1944 /* Why did we wake up? */ 1945 /* XXX KDM error here? */ 1946 mtx_unlock(¶ms.ioctl_mtx); 1947 break; 1948 case CTL_IOCTL_DATAMOVE: 1949 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1950 1951 /* 1952 * change last_state back to INPROG to avoid 1953 * deadlock on subsequent data moves. 1954 */ 1955 params.state = last_state = CTL_IOCTL_INPROG; 1956 1957 mtx_unlock(¶ms.ioctl_mtx); 1958 ctl_ioctl_do_datamove(&io->scsiio); 1959 /* 1960 * Note that in some cases, most notably writes, 1961 * this will queue the I/O and call us back later. 1962 * In other cases, generally reads, this routine 1963 * will immediately call back and wake us up, 1964 * probably using our own context. 1965 */ 1966 io->scsiio.be_move_done(io); 1967 break; 1968 case CTL_IOCTL_DONE: 1969 mtx_unlock(¶ms.ioctl_mtx); 1970 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1971 done = 1; 1972 break; 1973 default: 1974 mtx_unlock(¶ms.ioctl_mtx); 1975 /* XXX KDM error here? */ 1976 break; 1977 } 1978 } while (done == 0); 1979 1980 mtx_destroy(¶ms.ioctl_mtx); 1981 cv_destroy(¶ms.sem); 1982 1983 return (CTL_RETVAL_COMPLETE); 1984} 1985 1986static void 1987ctl_ioctl_datamove(union ctl_io *io) 1988{ 1989 struct ctl_fe_ioctl_params *params; 1990 1991 params = (struct ctl_fe_ioctl_params *) 1992 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1993 1994 mtx_lock(¶ms->ioctl_mtx); 1995 params->state = CTL_IOCTL_DATAMOVE; 1996 cv_broadcast(¶ms->sem); 1997 mtx_unlock(¶ms->ioctl_mtx); 1998} 1999 2000static void 2001ctl_ioctl_done(union ctl_io *io) 2002{ 2003 struct ctl_fe_ioctl_params *params; 2004 2005 params = (struct ctl_fe_ioctl_params *) 2006 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2007 2008 mtx_lock(¶ms->ioctl_mtx); 2009 params->state = CTL_IOCTL_DONE; 2010 cv_broadcast(¶ms->sem); 2011 mtx_unlock(¶ms->ioctl_mtx); 2012} 2013 2014static void 2015ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2016{ 2017 struct ctl_fe_ioctl_startstop_info *sd_info; 2018 2019 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2020 2021 sd_info->hs_info.status = metatask->status; 2022 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2023 sd_info->hs_info.luns_complete = 2024 metatask->taskinfo.startstop.luns_complete; 2025 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2026 2027 cv_broadcast(&sd_info->sem); 2028} 2029 2030static void 2031ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2032{ 2033 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2034 2035 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2036 2037 mtx_lock(fe_bbr_info->lock); 2038 fe_bbr_info->bbr_info->status = metatask->status; 2039 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2040 fe_bbr_info->wakeup_done = 1; 2041 mtx_unlock(fe_bbr_info->lock); 2042 2043 cv_broadcast(&fe_bbr_info->sem); 2044} 2045 2046/* 2047 * Returns 0 for success, errno for failure. 2048 */ 2049static int 2050ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2051 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2052{ 2053 union ctl_io *io; 2054 int retval; 2055 2056 retval = 0; 2057 2058 mtx_lock(&lun->lun_lock); 2059 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2060 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2061 ooa_links)) { 2062 struct ctl_ooa_entry *entry; 2063 2064 /* 2065 * If we've got more than we can fit, just count the 2066 * remaining entries. 2067 */ 2068 if (*cur_fill_num >= ooa_hdr->alloc_num) 2069 continue; 2070 2071 entry = &kern_entries[*cur_fill_num]; 2072 2073 entry->tag_num = io->scsiio.tag_num; 2074 entry->lun_num = lun->lun; 2075#ifdef CTL_TIME_IO 2076 entry->start_bt = io->io_hdr.start_bt; 2077#endif 2078 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2079 entry->cdb_len = io->scsiio.cdb_len; 2080 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2081 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2082 2083 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2084 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2085 2086 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2087 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2088 2089 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2090 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2091 2092 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2093 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2094 } 2095 mtx_unlock(&lun->lun_lock); 2096 2097 return (retval); 2098} 2099 2100static void * 2101ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2102 size_t error_str_len) 2103{ 2104 void *kptr; 2105 2106 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2107 2108 if (copyin(user_addr, kptr, len) != 0) { 2109 snprintf(error_str, error_str_len, "Error copying %d bytes " 2110 "from user address %p to kernel address %p", len, 2111 user_addr, kptr); 2112 free(kptr, M_CTL); 2113 return (NULL); 2114 } 2115 2116 return (kptr); 2117} 2118 2119static void 2120ctl_free_args(int num_args, struct ctl_be_arg *args) 2121{ 2122 int i; 2123 2124 if (args == NULL) 2125 return; 2126 2127 for (i = 0; i < num_args; i++) { 2128 free(args[i].kname, M_CTL); 2129 free(args[i].kvalue, M_CTL); 2130 } 2131 2132 free(args, M_CTL); 2133} 2134 2135static struct ctl_be_arg * 2136ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2137 char *error_str, size_t error_str_len) 2138{ 2139 struct ctl_be_arg *args; 2140 int i; 2141 2142 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2143 error_str, error_str_len); 2144 2145 if (args == NULL) 2146 goto bailout; 2147 2148 for (i = 0; i < num_args; i++) { 2149 args[i].kname = NULL; 2150 args[i].kvalue = NULL; 2151 } 2152 2153 for (i = 0; i < num_args; i++) { 2154 uint8_t *tmpptr; 2155 2156 args[i].kname = ctl_copyin_alloc(args[i].name, 2157 args[i].namelen, error_str, error_str_len); 2158 if (args[i].kname == NULL) 2159 goto bailout; 2160 2161 if (args[i].kname[args[i].namelen - 1] != '\0') { 2162 snprintf(error_str, error_str_len, "Argument %d " 2163 "name is not NUL-terminated", i); 2164 goto bailout; 2165 } 2166 2167 if (args[i].flags & CTL_BEARG_RD) { 2168 tmpptr = ctl_copyin_alloc(args[i].value, 2169 args[i].vallen, error_str, error_str_len); 2170 if (tmpptr == NULL) 2171 goto bailout; 2172 if ((args[i].flags & CTL_BEARG_ASCII) 2173 && (tmpptr[args[i].vallen - 1] != '\0')) { 2174 snprintf(error_str, error_str_len, "Argument " 2175 "%d value is not NUL-terminated", i); 2176 goto bailout; 2177 } 2178 args[i].kvalue = tmpptr; 2179 } else { 2180 args[i].kvalue = malloc(args[i].vallen, 2181 M_CTL, M_WAITOK | M_ZERO); 2182 } 2183 } 2184 2185 return (args); 2186bailout: 2187 2188 ctl_free_args(num_args, args); 2189 2190 return (NULL); 2191} 2192 2193static void 2194ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2195{ 2196 int i; 2197 2198 for (i = 0; i < num_args; i++) { 2199 if (args[i].flags & CTL_BEARG_WR) 2200 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2201 } 2202} 2203 2204/* 2205 * Escape characters that are illegal or not recommended in XML. 2206 */ 2207int 2208ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2209{ 2210 int retval; 2211 2212 retval = 0; 2213 2214 for (; *str; str++) { 2215 switch (*str) { 2216 case '&': 2217 retval = sbuf_printf(sb, "&"); 2218 break; 2219 case '>': 2220 retval = sbuf_printf(sb, ">"); 2221 break; 2222 case '<': 2223 retval = sbuf_printf(sb, "<"); 2224 break; 2225 default: 2226 retval = sbuf_putc(sb, *str); 2227 break; 2228 } 2229 2230 if (retval != 0) 2231 break; 2232 2233 } 2234 2235 return (retval); 2236} 2237 2238static int 2239ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2240 struct thread *td) 2241{ 2242 struct ctl_softc *softc; 2243 int retval; 2244 2245 softc = control_softc; 2246 2247 retval = 0; 2248 2249 switch (cmd) { 2250 case CTL_IO: { 2251 union ctl_io *io; 2252 void *pool_tmp; 2253 2254 /* 2255 * If we haven't been "enabled", don't allow any SCSI I/O 2256 * to this FETD. 2257 */ 2258 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2259 retval = EPERM; 2260 break; 2261 } 2262 2263 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2264 if (io == NULL) { 2265 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2266 retval = ENOSPC; 2267 break; 2268 } 2269 2270 /* 2271 * Need to save the pool reference so it doesn't get 2272 * spammed by the user's ctl_io. 2273 */ 2274 pool_tmp = io->io_hdr.pool; 2275 2276 memcpy(io, (void *)addr, sizeof(*io)); 2277 2278 io->io_hdr.pool = pool_tmp; 2279 /* 2280 * No status yet, so make sure the status is set properly. 2281 */ 2282 io->io_hdr.status = CTL_STATUS_NONE; 2283 2284 /* 2285 * The user sets the initiator ID, target and LUN IDs. 2286 */ 2287 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2288 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2289 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2290 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2291 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2292 2293 retval = ctl_ioctl_submit_wait(io); 2294 2295 if (retval != 0) { 2296 ctl_free_io(io); 2297 break; 2298 } 2299 2300 memcpy((void *)addr, io, sizeof(*io)); 2301 2302 /* return this to our pool */ 2303 ctl_free_io(io); 2304 2305 break; 2306 } 2307 case CTL_ENABLE_PORT: 2308 case CTL_DISABLE_PORT: 2309 case CTL_SET_PORT_WWNS: { 2310 struct ctl_port *port; 2311 struct ctl_port_entry *entry; 2312 2313 entry = (struct ctl_port_entry *)addr; 2314 2315 mtx_lock(&softc->ctl_lock); 2316 STAILQ_FOREACH(port, &softc->port_list, links) { 2317 int action, done; 2318 2319 action = 0; 2320 done = 0; 2321 2322 if ((entry->port_type == CTL_PORT_NONE) 2323 && (entry->targ_port == port->targ_port)) { 2324 /* 2325 * If the user only wants to enable or 2326 * disable or set WWNs on a specific port, 2327 * do the operation and we're done. 2328 */ 2329 action = 1; 2330 done = 1; 2331 } else if (entry->port_type & port->port_type) { 2332 /* 2333 * Compare the user's type mask with the 2334 * particular frontend type to see if we 2335 * have a match. 2336 */ 2337 action = 1; 2338 done = 0; 2339 2340 /* 2341 * Make sure the user isn't trying to set 2342 * WWNs on multiple ports at the same time. 2343 */ 2344 if (cmd == CTL_SET_PORT_WWNS) { 2345 printf("%s: Can't set WWNs on " 2346 "multiple ports\n", __func__); 2347 retval = EINVAL; 2348 break; 2349 } 2350 } 2351 if (action != 0) { 2352 /* 2353 * XXX KDM we have to drop the lock here, 2354 * because the online/offline operations 2355 * can potentially block. We need to 2356 * reference count the frontends so they 2357 * can't go away, 2358 */ 2359 mtx_unlock(&softc->ctl_lock); 2360 2361 if (cmd == CTL_ENABLE_PORT) { 2362 struct ctl_lun *lun; 2363 2364 STAILQ_FOREACH(lun, &softc->lun_list, 2365 links) { 2366 port->lun_enable(port->targ_lun_arg, 2367 lun->target, 2368 lun->lun); 2369 } 2370 2371 ctl_port_online(port); 2372 } else if (cmd == CTL_DISABLE_PORT) { 2373 struct ctl_lun *lun; 2374 2375 ctl_port_offline(port); 2376 2377 STAILQ_FOREACH(lun, &softc->lun_list, 2378 links) { 2379 port->lun_disable( 2380 port->targ_lun_arg, 2381 lun->target, 2382 lun->lun); 2383 } 2384 } 2385 2386 mtx_lock(&softc->ctl_lock); 2387 2388 if (cmd == CTL_SET_PORT_WWNS) 2389 ctl_port_set_wwns(port, 2390 (entry->flags & CTL_PORT_WWNN_VALID) ? 2391 1 : 0, entry->wwnn, 2392 (entry->flags & CTL_PORT_WWPN_VALID) ? 2393 1 : 0, entry->wwpn); 2394 } 2395 if (done != 0) 2396 break; 2397 } 2398 mtx_unlock(&softc->ctl_lock); 2399 break; 2400 } 2401 case CTL_GET_PORT_LIST: { 2402 struct ctl_port *port; 2403 struct ctl_port_list *list; 2404 int i; 2405 2406 list = (struct ctl_port_list *)addr; 2407 2408 if (list->alloc_len != (list->alloc_num * 2409 sizeof(struct ctl_port_entry))) { 2410 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2411 "alloc_num %u * sizeof(struct ctl_port_entry) " 2412 "%zu\n", __func__, list->alloc_len, 2413 list->alloc_num, sizeof(struct ctl_port_entry)); 2414 retval = EINVAL; 2415 break; 2416 } 2417 list->fill_len = 0; 2418 list->fill_num = 0; 2419 list->dropped_num = 0; 2420 i = 0; 2421 mtx_lock(&softc->ctl_lock); 2422 STAILQ_FOREACH(port, &softc->port_list, links) { 2423 struct ctl_port_entry entry, *list_entry; 2424 2425 if (list->fill_num >= list->alloc_num) { 2426 list->dropped_num++; 2427 continue; 2428 } 2429 2430 entry.port_type = port->port_type; 2431 strlcpy(entry.port_name, port->port_name, 2432 sizeof(entry.port_name)); 2433 entry.targ_port = port->targ_port; 2434 entry.physical_port = port->physical_port; 2435 entry.virtual_port = port->virtual_port; 2436 entry.wwnn = port->wwnn; 2437 entry.wwpn = port->wwpn; 2438 if (port->status & CTL_PORT_STATUS_ONLINE) 2439 entry.online = 1; 2440 else 2441 entry.online = 0; 2442 2443 list_entry = &list->entries[i]; 2444 2445 retval = copyout(&entry, list_entry, sizeof(entry)); 2446 if (retval != 0) { 2447 printf("%s: CTL_GET_PORT_LIST: copyout " 2448 "returned %d\n", __func__, retval); 2449 break; 2450 } 2451 i++; 2452 list->fill_num++; 2453 list->fill_len += sizeof(entry); 2454 } 2455 mtx_unlock(&softc->ctl_lock); 2456 2457 /* 2458 * If this is non-zero, we had a copyout fault, so there's 2459 * probably no point in attempting to set the status inside 2460 * the structure. 2461 */ 2462 if (retval != 0) 2463 break; 2464 2465 if (list->dropped_num > 0) 2466 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2467 else 2468 list->status = CTL_PORT_LIST_OK; 2469 break; 2470 } 2471 case CTL_DUMP_OOA: { 2472 struct ctl_lun *lun; 2473 union ctl_io *io; 2474 char printbuf[128]; 2475 struct sbuf sb; 2476 2477 mtx_lock(&softc->ctl_lock); 2478 printf("Dumping OOA queues:\n"); 2479 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2480 mtx_lock(&lun->lun_lock); 2481 for (io = (union ctl_io *)TAILQ_FIRST( 2482 &lun->ooa_queue); io != NULL; 2483 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2484 ooa_links)) { 2485 sbuf_new(&sb, printbuf, sizeof(printbuf), 2486 SBUF_FIXEDLEN); 2487 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2488 (intmax_t)lun->lun, 2489 io->scsiio.tag_num, 2490 (io->io_hdr.flags & 2491 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2492 (io->io_hdr.flags & 2493 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_ABORT) ? " ABORT" : "", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2498 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2499 sbuf_finish(&sb); 2500 printf("%s\n", sbuf_data(&sb)); 2501 } 2502 mtx_unlock(&lun->lun_lock); 2503 } 2504 printf("OOA queues dump done\n"); 2505 mtx_unlock(&softc->ctl_lock); 2506 break; 2507 } 2508 case CTL_GET_OOA: { 2509 struct ctl_lun *lun; 2510 struct ctl_ooa *ooa_hdr; 2511 struct ctl_ooa_entry *entries; 2512 uint32_t cur_fill_num; 2513 2514 ooa_hdr = (struct ctl_ooa *)addr; 2515 2516 if ((ooa_hdr->alloc_len == 0) 2517 || (ooa_hdr->alloc_num == 0)) { 2518 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2519 "must be non-zero\n", __func__, 2520 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2521 retval = EINVAL; 2522 break; 2523 } 2524 2525 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2526 sizeof(struct ctl_ooa_entry))) { 2527 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2528 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2529 __func__, ooa_hdr->alloc_len, 2530 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2531 retval = EINVAL; 2532 break; 2533 } 2534 2535 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2536 if (entries == NULL) { 2537 printf("%s: could not allocate %d bytes for OOA " 2538 "dump\n", __func__, ooa_hdr->alloc_len); 2539 retval = ENOMEM; 2540 break; 2541 } 2542 2543 mtx_lock(&softc->ctl_lock); 2544 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2545 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2546 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2547 mtx_unlock(&softc->ctl_lock); 2548 free(entries, M_CTL); 2549 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2550 __func__, (uintmax_t)ooa_hdr->lun_num); 2551 retval = EINVAL; 2552 break; 2553 } 2554 2555 cur_fill_num = 0; 2556 2557 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2558 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2559 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2560 ooa_hdr, entries); 2561 if (retval != 0) 2562 break; 2563 } 2564 if (retval != 0) { 2565 mtx_unlock(&softc->ctl_lock); 2566 free(entries, M_CTL); 2567 break; 2568 } 2569 } else { 2570 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2571 2572 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2573 entries); 2574 } 2575 mtx_unlock(&softc->ctl_lock); 2576 2577 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2578 ooa_hdr->fill_len = ooa_hdr->fill_num * 2579 sizeof(struct ctl_ooa_entry); 2580 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2581 if (retval != 0) { 2582 printf("%s: error copying out %d bytes for OOA dump\n", 2583 __func__, ooa_hdr->fill_len); 2584 } 2585 2586 getbintime(&ooa_hdr->cur_bt); 2587 2588 if (cur_fill_num > ooa_hdr->alloc_num) { 2589 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2590 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2591 } else { 2592 ooa_hdr->dropped_num = 0; 2593 ooa_hdr->status = CTL_OOA_OK; 2594 } 2595 2596 free(entries, M_CTL); 2597 break; 2598 } 2599 case CTL_CHECK_OOA: { 2600 union ctl_io *io; 2601 struct ctl_lun *lun; 2602 struct ctl_ooa_info *ooa_info; 2603 2604 2605 ooa_info = (struct ctl_ooa_info *)addr; 2606 2607 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2608 ooa_info->status = CTL_OOA_INVALID_LUN; 2609 break; 2610 } 2611 mtx_lock(&softc->ctl_lock); 2612 lun = softc->ctl_luns[ooa_info->lun_id]; 2613 if (lun == NULL) { 2614 mtx_unlock(&softc->ctl_lock); 2615 ooa_info->status = CTL_OOA_INVALID_LUN; 2616 break; 2617 } 2618 mtx_lock(&lun->lun_lock); 2619 mtx_unlock(&softc->ctl_lock); 2620 ooa_info->num_entries = 0; 2621 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2622 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2623 &io->io_hdr, ooa_links)) { 2624 ooa_info->num_entries++; 2625 } 2626 mtx_unlock(&lun->lun_lock); 2627 2628 ooa_info->status = CTL_OOA_SUCCESS; 2629 2630 break; 2631 } 2632 case CTL_HARD_START: 2633 case CTL_HARD_STOP: { 2634 struct ctl_fe_ioctl_startstop_info ss_info; 2635 struct cfi_metatask *metatask; 2636 struct mtx hs_mtx; 2637 2638 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2639 2640 cv_init(&ss_info.sem, "hard start/stop cv" ); 2641 2642 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2643 if (metatask == NULL) { 2644 retval = ENOMEM; 2645 mtx_destroy(&hs_mtx); 2646 break; 2647 } 2648 2649 if (cmd == CTL_HARD_START) 2650 metatask->tasktype = CFI_TASK_STARTUP; 2651 else 2652 metatask->tasktype = CFI_TASK_SHUTDOWN; 2653 2654 metatask->callback = ctl_ioctl_hard_startstop_callback; 2655 metatask->callback_arg = &ss_info; 2656 2657 cfi_action(metatask); 2658 2659 /* Wait for the callback */ 2660 mtx_lock(&hs_mtx); 2661 cv_wait_sig(&ss_info.sem, &hs_mtx); 2662 mtx_unlock(&hs_mtx); 2663 2664 /* 2665 * All information has been copied from the metatask by the 2666 * time cv_broadcast() is called, so we free the metatask here. 2667 */ 2668 cfi_free_metatask(metatask); 2669 2670 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2671 2672 mtx_destroy(&hs_mtx); 2673 break; 2674 } 2675 case CTL_BBRREAD: { 2676 struct ctl_bbrread_info *bbr_info; 2677 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2678 struct mtx bbr_mtx; 2679 struct cfi_metatask *metatask; 2680 2681 bbr_info = (struct ctl_bbrread_info *)addr; 2682 2683 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2684 2685 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2686 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2687 2688 fe_bbr_info.bbr_info = bbr_info; 2689 fe_bbr_info.lock = &bbr_mtx; 2690 2691 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2692 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2693 2694 if (metatask == NULL) { 2695 mtx_destroy(&bbr_mtx); 2696 cv_destroy(&fe_bbr_info.sem); 2697 retval = ENOMEM; 2698 break; 2699 } 2700 metatask->tasktype = CFI_TASK_BBRREAD; 2701 metatask->callback = ctl_ioctl_bbrread_callback; 2702 metatask->callback_arg = &fe_bbr_info; 2703 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2704 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2705 metatask->taskinfo.bbrread.len = bbr_info->len; 2706 2707 cfi_action(metatask); 2708 2709 mtx_lock(&bbr_mtx); 2710 while (fe_bbr_info.wakeup_done == 0) 2711 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2712 mtx_unlock(&bbr_mtx); 2713 2714 bbr_info->status = metatask->status; 2715 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2716 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2717 memcpy(&bbr_info->sense_data, 2718 &metatask->taskinfo.bbrread.sense_data, 2719 ctl_min(sizeof(bbr_info->sense_data), 2720 sizeof(metatask->taskinfo.bbrread.sense_data))); 2721 2722 cfi_free_metatask(metatask); 2723 2724 mtx_destroy(&bbr_mtx); 2725 cv_destroy(&fe_bbr_info.sem); 2726 2727 break; 2728 } 2729 case CTL_DELAY_IO: { 2730 struct ctl_io_delay_info *delay_info; 2731#ifdef CTL_IO_DELAY 2732 struct ctl_lun *lun; 2733#endif /* CTL_IO_DELAY */ 2734 2735 delay_info = (struct ctl_io_delay_info *)addr; 2736 2737#ifdef CTL_IO_DELAY 2738 mtx_lock(&softc->ctl_lock); 2739 2740 if ((delay_info->lun_id > CTL_MAX_LUNS) 2741 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2742 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2743 } else { 2744 lun = softc->ctl_luns[delay_info->lun_id]; 2745 mtx_lock(&lun->lun_lock); 2746 2747 delay_info->status = CTL_DELAY_STATUS_OK; 2748 2749 switch (delay_info->delay_type) { 2750 case CTL_DELAY_TYPE_CONT: 2751 break; 2752 case CTL_DELAY_TYPE_ONESHOT: 2753 break; 2754 default: 2755 delay_info->status = 2756 CTL_DELAY_STATUS_INVALID_TYPE; 2757 break; 2758 } 2759 2760 switch (delay_info->delay_loc) { 2761 case CTL_DELAY_LOC_DATAMOVE: 2762 lun->delay_info.datamove_type = 2763 delay_info->delay_type; 2764 lun->delay_info.datamove_delay = 2765 delay_info->delay_secs; 2766 break; 2767 case CTL_DELAY_LOC_DONE: 2768 lun->delay_info.done_type = 2769 delay_info->delay_type; 2770 lun->delay_info.done_delay = 2771 delay_info->delay_secs; 2772 break; 2773 default: 2774 delay_info->status = 2775 CTL_DELAY_STATUS_INVALID_LOC; 2776 break; 2777 } 2778 mtx_unlock(&lun->lun_lock); 2779 } 2780 2781 mtx_unlock(&softc->ctl_lock); 2782#else 2783 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2784#endif /* CTL_IO_DELAY */ 2785 break; 2786 } 2787 case CTL_REALSYNC_SET: { 2788 int *syncstate; 2789 2790 syncstate = (int *)addr; 2791 2792 mtx_lock(&softc->ctl_lock); 2793 switch (*syncstate) { 2794 case 0: 2795 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2796 break; 2797 case 1: 2798 softc->flags |= CTL_FLAG_REAL_SYNC; 2799 break; 2800 default: 2801 retval = EINVAL; 2802 break; 2803 } 2804 mtx_unlock(&softc->ctl_lock); 2805 break; 2806 } 2807 case CTL_REALSYNC_GET: { 2808 int *syncstate; 2809 2810 syncstate = (int*)addr; 2811 2812 mtx_lock(&softc->ctl_lock); 2813 if (softc->flags & CTL_FLAG_REAL_SYNC) 2814 *syncstate = 1; 2815 else 2816 *syncstate = 0; 2817 mtx_unlock(&softc->ctl_lock); 2818 2819 break; 2820 } 2821 case CTL_SETSYNC: 2822 case CTL_GETSYNC: { 2823 struct ctl_sync_info *sync_info; 2824 struct ctl_lun *lun; 2825 2826 sync_info = (struct ctl_sync_info *)addr; 2827 2828 mtx_lock(&softc->ctl_lock); 2829 lun = softc->ctl_luns[sync_info->lun_id]; 2830 if (lun == NULL) { 2831 mtx_unlock(&softc->ctl_lock); 2832 sync_info->status = CTL_GS_SYNC_NO_LUN; 2833 } 2834 /* 2835 * Get or set the sync interval. We're not bounds checking 2836 * in the set case, hopefully the user won't do something 2837 * silly. 2838 */ 2839 mtx_lock(&lun->lun_lock); 2840 mtx_unlock(&softc->ctl_lock); 2841 if (cmd == CTL_GETSYNC) 2842 sync_info->sync_interval = lun->sync_interval; 2843 else 2844 lun->sync_interval = sync_info->sync_interval; 2845 mtx_unlock(&lun->lun_lock); 2846 2847 sync_info->status = CTL_GS_SYNC_OK; 2848 2849 break; 2850 } 2851 case CTL_GETSTATS: { 2852 struct ctl_stats *stats; 2853 struct ctl_lun *lun; 2854 int i; 2855 2856 stats = (struct ctl_stats *)addr; 2857 2858 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2859 stats->alloc_len) { 2860 stats->status = CTL_SS_NEED_MORE_SPACE; 2861 stats->num_luns = softc->num_luns; 2862 break; 2863 } 2864 /* 2865 * XXX KDM no locking here. If the LUN list changes, 2866 * things can blow up. 2867 */ 2868 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2869 i++, lun = STAILQ_NEXT(lun, links)) { 2870 retval = copyout(&lun->stats, &stats->lun_stats[i], 2871 sizeof(lun->stats)); 2872 if (retval != 0) 2873 break; 2874 } 2875 stats->num_luns = softc->num_luns; 2876 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2877 softc->num_luns; 2878 stats->status = CTL_SS_OK; 2879#ifdef CTL_TIME_IO 2880 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2881#else 2882 stats->flags = CTL_STATS_FLAG_NONE; 2883#endif 2884 getnanouptime(&stats->timestamp); 2885 break; 2886 } 2887 case CTL_ERROR_INJECT: { 2888 struct ctl_error_desc *err_desc, *new_err_desc; 2889 struct ctl_lun *lun; 2890 2891 err_desc = (struct ctl_error_desc *)addr; 2892 2893 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2894 M_WAITOK | M_ZERO); 2895 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2896 2897 mtx_lock(&softc->ctl_lock); 2898 lun = softc->ctl_luns[err_desc->lun_id]; 2899 if (lun == NULL) { 2900 mtx_unlock(&softc->ctl_lock); 2901 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2902 __func__, (uintmax_t)err_desc->lun_id); 2903 retval = EINVAL; 2904 break; 2905 } 2906 mtx_lock(&lun->lun_lock); 2907 mtx_unlock(&softc->ctl_lock); 2908 2909 /* 2910 * We could do some checking here to verify the validity 2911 * of the request, but given the complexity of error 2912 * injection requests, the checking logic would be fairly 2913 * complex. 2914 * 2915 * For now, if the request is invalid, it just won't get 2916 * executed and might get deleted. 2917 */ 2918 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2919 2920 /* 2921 * XXX KDM check to make sure the serial number is unique, 2922 * in case we somehow manage to wrap. That shouldn't 2923 * happen for a very long time, but it's the right thing to 2924 * do. 2925 */ 2926 new_err_desc->serial = lun->error_serial; 2927 err_desc->serial = lun->error_serial; 2928 lun->error_serial++; 2929 2930 mtx_unlock(&lun->lun_lock); 2931 break; 2932 } 2933 case CTL_ERROR_INJECT_DELETE: { 2934 struct ctl_error_desc *delete_desc, *desc, *desc2; 2935 struct ctl_lun *lun; 2936 int delete_done; 2937 2938 delete_desc = (struct ctl_error_desc *)addr; 2939 delete_done = 0; 2940 2941 mtx_lock(&softc->ctl_lock); 2942 lun = softc->ctl_luns[delete_desc->lun_id]; 2943 if (lun == NULL) { 2944 mtx_unlock(&softc->ctl_lock); 2945 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2946 __func__, (uintmax_t)delete_desc->lun_id); 2947 retval = EINVAL; 2948 break; 2949 } 2950 mtx_lock(&lun->lun_lock); 2951 mtx_unlock(&softc->ctl_lock); 2952 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2953 if (desc->serial != delete_desc->serial) 2954 continue; 2955 2956 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2957 links); 2958 free(desc, M_CTL); 2959 delete_done = 1; 2960 } 2961 mtx_unlock(&lun->lun_lock); 2962 if (delete_done == 0) { 2963 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2964 "error serial %ju on LUN %u\n", __func__, 2965 delete_desc->serial, delete_desc->lun_id); 2966 retval = EINVAL; 2967 break; 2968 } 2969 break; 2970 } 2971 case CTL_DUMP_STRUCTS: { 2972 int i, j, k, idx; 2973 struct ctl_port *port; 2974 struct ctl_frontend *fe; 2975 2976 mtx_lock(&softc->ctl_lock); 2977 printf("CTL Persistent Reservation information start:\n"); 2978 for (i = 0; i < CTL_MAX_LUNS; i++) { 2979 struct ctl_lun *lun; 2980 2981 lun = softc->ctl_luns[i]; 2982 2983 if ((lun == NULL) 2984 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2985 continue; 2986 2987 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2988 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2989 idx = j * CTL_MAX_INIT_PER_PORT + k; 2990 if (lun->per_res[idx].registered == 0) 2991 continue; 2992 printf(" LUN %d port %d iid %d key " 2993 "%#jx\n", i, j, k, 2994 (uintmax_t)scsi_8btou64( 2995 lun->per_res[idx].res_key.key)); 2996 } 2997 } 2998 } 2999 printf("CTL Persistent Reservation information end\n"); 3000 printf("CTL Ports:\n"); 3001 STAILQ_FOREACH(port, &softc->port_list, links) { 3002 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3003 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3004 port->frontend->name, port->port_type, 3005 port->physical_port, port->virtual_port, 3006 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3007 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3008 if (port->wwpn_iid[j].in_use == 0 && 3009 port->wwpn_iid[j].wwpn == 0 && 3010 port->wwpn_iid[j].name == NULL) 3011 continue; 3012 3013 printf(" iid %u use %d WWPN %#jx '%s'\n", 3014 j, port->wwpn_iid[j].in_use, 3015 (uintmax_t)port->wwpn_iid[j].wwpn, 3016 port->wwpn_iid[j].name); 3017 } 3018 } 3019 printf("CTL Port information end\n"); 3020 mtx_unlock(&softc->ctl_lock); 3021 /* 3022 * XXX KDM calling this without a lock. We'd likely want 3023 * to drop the lock before calling the frontend's dump 3024 * routine anyway. 3025 */ 3026 printf("CTL Frontends:\n"); 3027 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3028 printf(" Frontend '%s'\n", fe->name); 3029 if (fe->fe_dump != NULL) 3030 fe->fe_dump(); 3031 } 3032 printf("CTL Frontend information end\n"); 3033 break; 3034 } 3035 case CTL_LUN_REQ: { 3036 struct ctl_lun_req *lun_req; 3037 struct ctl_backend_driver *backend; 3038 3039 lun_req = (struct ctl_lun_req *)addr; 3040 3041 backend = ctl_backend_find(lun_req->backend); 3042 if (backend == NULL) { 3043 lun_req->status = CTL_LUN_ERROR; 3044 snprintf(lun_req->error_str, 3045 sizeof(lun_req->error_str), 3046 "Backend \"%s\" not found.", 3047 lun_req->backend); 3048 break; 3049 } 3050 if (lun_req->num_be_args > 0) { 3051 lun_req->kern_be_args = ctl_copyin_args( 3052 lun_req->num_be_args, 3053 lun_req->be_args, 3054 lun_req->error_str, 3055 sizeof(lun_req->error_str)); 3056 if (lun_req->kern_be_args == NULL) { 3057 lun_req->status = CTL_LUN_ERROR; 3058 break; 3059 } 3060 } 3061 3062 retval = backend->ioctl(dev, cmd, addr, flag, td); 3063 3064 if (lun_req->num_be_args > 0) { 3065 ctl_copyout_args(lun_req->num_be_args, 3066 lun_req->kern_be_args); 3067 ctl_free_args(lun_req->num_be_args, 3068 lun_req->kern_be_args); 3069 } 3070 break; 3071 } 3072 case CTL_LUN_LIST: { 3073 struct sbuf *sb; 3074 struct ctl_lun *lun; 3075 struct ctl_lun_list *list; 3076 struct ctl_option *opt; 3077 3078 list = (struct ctl_lun_list *)addr; 3079 3080 /* 3081 * Allocate a fixed length sbuf here, based on the length 3082 * of the user's buffer. We could allocate an auto-extending 3083 * buffer, and then tell the user how much larger our 3084 * amount of data is than his buffer, but that presents 3085 * some problems: 3086 * 3087 * 1. The sbuf(9) routines use a blocking malloc, and so 3088 * we can't hold a lock while calling them with an 3089 * auto-extending buffer. 3090 * 3091 * 2. There is not currently a LUN reference counting 3092 * mechanism, outside of outstanding transactions on 3093 * the LUN's OOA queue. So a LUN could go away on us 3094 * while we're getting the LUN number, backend-specific 3095 * information, etc. Thus, given the way things 3096 * currently work, we need to hold the CTL lock while 3097 * grabbing LUN information. 3098 * 3099 * So, from the user's standpoint, the best thing to do is 3100 * allocate what he thinks is a reasonable buffer length, 3101 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3102 * double the buffer length and try again. (And repeat 3103 * that until he succeeds.) 3104 */ 3105 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3106 if (sb == NULL) { 3107 list->status = CTL_LUN_LIST_ERROR; 3108 snprintf(list->error_str, sizeof(list->error_str), 3109 "Unable to allocate %d bytes for LUN list", 3110 list->alloc_len); 3111 break; 3112 } 3113 3114 sbuf_printf(sb, "<ctllunlist>\n"); 3115 3116 mtx_lock(&softc->ctl_lock); 3117 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3118 mtx_lock(&lun->lun_lock); 3119 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3120 (uintmax_t)lun->lun); 3121 3122 /* 3123 * Bail out as soon as we see that we've overfilled 3124 * the buffer. 3125 */ 3126 if (retval != 0) 3127 break; 3128 3129 retval = sbuf_printf(sb, "\t<backend_type>%s" 3130 "</backend_type>\n", 3131 (lun->backend == NULL) ? "none" : 3132 lun->backend->name); 3133 3134 if (retval != 0) 3135 break; 3136 3137 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3138 lun->be_lun->lun_type); 3139 3140 if (retval != 0) 3141 break; 3142 3143 if (lun->backend == NULL) { 3144 retval = sbuf_printf(sb, "</lun>\n"); 3145 if (retval != 0) 3146 break; 3147 continue; 3148 } 3149 3150 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3151 (lun->be_lun->maxlba > 0) ? 3152 lun->be_lun->maxlba + 1 : 0); 3153 3154 if (retval != 0) 3155 break; 3156 3157 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3158 lun->be_lun->blocksize); 3159 3160 if (retval != 0) 3161 break; 3162 3163 retval = sbuf_printf(sb, "\t<serial_number>"); 3164 3165 if (retval != 0) 3166 break; 3167 3168 retval = ctl_sbuf_printf_esc(sb, 3169 lun->be_lun->serial_num); 3170 3171 if (retval != 0) 3172 break; 3173 3174 retval = sbuf_printf(sb, "</serial_number>\n"); 3175 3176 if (retval != 0) 3177 break; 3178 3179 retval = sbuf_printf(sb, "\t<device_id>"); 3180 3181 if (retval != 0) 3182 break; 3183 3184 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3185 3186 if (retval != 0) 3187 break; 3188 3189 retval = sbuf_printf(sb, "</device_id>\n"); 3190 3191 if (retval != 0) 3192 break; 3193 3194 if (lun->backend->lun_info != NULL) { 3195 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3196 if (retval != 0) 3197 break; 3198 } 3199 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3200 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3201 opt->name, opt->value, opt->name); 3202 if (retval != 0) 3203 break; 3204 } 3205 3206 retval = sbuf_printf(sb, "</lun>\n"); 3207 3208 if (retval != 0) 3209 break; 3210 mtx_unlock(&lun->lun_lock); 3211 } 3212 if (lun != NULL) 3213 mtx_unlock(&lun->lun_lock); 3214 mtx_unlock(&softc->ctl_lock); 3215 3216 if ((retval != 0) 3217 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3218 retval = 0; 3219 sbuf_delete(sb); 3220 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3221 snprintf(list->error_str, sizeof(list->error_str), 3222 "Out of space, %d bytes is too small", 3223 list->alloc_len); 3224 break; 3225 } 3226 3227 sbuf_finish(sb); 3228 3229 retval = copyout(sbuf_data(sb), list->lun_xml, 3230 sbuf_len(sb) + 1); 3231 3232 list->fill_len = sbuf_len(sb) + 1; 3233 list->status = CTL_LUN_LIST_OK; 3234 sbuf_delete(sb); 3235 break; 3236 } 3237 case CTL_ISCSI: { 3238 struct ctl_iscsi *ci; 3239 struct ctl_frontend *fe; 3240 3241 ci = (struct ctl_iscsi *)addr; 3242 3243 fe = ctl_frontend_find("iscsi"); 3244 if (fe == NULL) { 3245 ci->status = CTL_ISCSI_ERROR; 3246 snprintf(ci->error_str, sizeof(ci->error_str), 3247 "Frontend \"iscsi\" not found."); 3248 break; 3249 } 3250 3251 retval = fe->ioctl(dev, cmd, addr, flag, td); 3252 break; 3253 } 3254 case CTL_PORT_REQ: { 3255 struct ctl_req *req; 3256 struct ctl_frontend *fe; 3257 3258 req = (struct ctl_req *)addr; 3259 3260 fe = ctl_frontend_find(req->driver); 3261 if (fe == NULL) { 3262 req->status = CTL_LUN_ERROR; 3263 snprintf(req->error_str, sizeof(req->error_str), 3264 "Frontend \"%s\" not found.", req->driver); 3265 break; 3266 } 3267 if (req->num_args > 0) { 3268 req->kern_args = ctl_copyin_args(req->num_args, 3269 req->args, req->error_str, sizeof(req->error_str)); 3270 if (req->kern_args == NULL) { 3271 req->status = CTL_LUN_ERROR; 3272 break; 3273 } 3274 } 3275 3276 retval = fe->ioctl(dev, cmd, addr, flag, td); 3277 3278 if (req->num_args > 0) { 3279 ctl_copyout_args(req->num_args, req->kern_args); 3280 ctl_free_args(req->num_args, req->kern_args); 3281 } 3282 break; 3283 } 3284 case CTL_PORT_LIST: { 3285 struct sbuf *sb; 3286 struct ctl_port *port; 3287 struct ctl_lun_list *list; 3288 struct ctl_option *opt; 3289 3290 list = (struct ctl_lun_list *)addr; 3291 3292 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3293 if (sb == NULL) { 3294 list->status = CTL_LUN_LIST_ERROR; 3295 snprintf(list->error_str, sizeof(list->error_str), 3296 "Unable to allocate %d bytes for LUN list", 3297 list->alloc_len); 3298 break; 3299 } 3300 3301 sbuf_printf(sb, "<ctlportlist>\n"); 3302 3303 mtx_lock(&softc->ctl_lock); 3304 STAILQ_FOREACH(port, &softc->port_list, links) { 3305 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3306 (uintmax_t)port->targ_port); 3307 3308 /* 3309 * Bail out as soon as we see that we've overfilled 3310 * the buffer. 3311 */ 3312 if (retval != 0) 3313 break; 3314 3315 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3316 "</frontend_type>\n", port->frontend->name); 3317 if (retval != 0) 3318 break; 3319 3320 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3321 port->port_type); 3322 if (retval != 0) 3323 break; 3324 3325 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3326 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3327 if (retval != 0) 3328 break; 3329 3330 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3331 port->port_name); 3332 if (retval != 0) 3333 break; 3334 3335 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3336 port->physical_port); 3337 if (retval != 0) 3338 break; 3339 3340 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3341 port->virtual_port); 3342 if (retval != 0) 3343 break; 3344 3345 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3346 (uintmax_t)port->wwnn); 3347 if (retval != 0) 3348 break; 3349 3350 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3351 (uintmax_t)port->wwpn); 3352 if (retval != 0) 3353 break; 3354 3355 if (port->port_info != NULL) { 3356 retval = port->port_info(port->onoff_arg, sb); 3357 if (retval != 0) 3358 break; 3359 } 3360 STAILQ_FOREACH(opt, &port->options, links) { 3361 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3362 opt->name, opt->value, opt->name); 3363 if (retval != 0) 3364 break; 3365 } 3366 3367 retval = sbuf_printf(sb, "</targ_port>\n"); 3368 if (retval != 0) 3369 break; 3370 } 3371 mtx_unlock(&softc->ctl_lock); 3372 3373 if ((retval != 0) 3374 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3375 retval = 0; 3376 sbuf_delete(sb); 3377 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3378 snprintf(list->error_str, sizeof(list->error_str), 3379 "Out of space, %d bytes is too small", 3380 list->alloc_len); 3381 break; 3382 } 3383 3384 sbuf_finish(sb); 3385 3386 retval = copyout(sbuf_data(sb), list->lun_xml, 3387 sbuf_len(sb) + 1); 3388 3389 list->fill_len = sbuf_len(sb) + 1; 3390 list->status = CTL_LUN_LIST_OK; 3391 sbuf_delete(sb); 3392 break; 3393 } 3394 default: { 3395 /* XXX KDM should we fix this? */ 3396#if 0 3397 struct ctl_backend_driver *backend; 3398 unsigned int type; 3399 int found; 3400 3401 found = 0; 3402 3403 /* 3404 * We encode the backend type as the ioctl type for backend 3405 * ioctls. So parse it out here, and then search for a 3406 * backend of this type. 3407 */ 3408 type = _IOC_TYPE(cmd); 3409 3410 STAILQ_FOREACH(backend, &softc->be_list, links) { 3411 if (backend->type == type) { 3412 found = 1; 3413 break; 3414 } 3415 } 3416 if (found == 0) { 3417 printf("ctl: unknown ioctl command %#lx or backend " 3418 "%d\n", cmd, type); 3419 retval = EINVAL; 3420 break; 3421 } 3422 retval = backend->ioctl(dev, cmd, addr, flag, td); 3423#endif 3424 retval = ENOTTY; 3425 break; 3426 } 3427 } 3428 return (retval); 3429} 3430 3431uint32_t 3432ctl_get_initindex(struct ctl_nexus *nexus) 3433{ 3434 if (nexus->targ_port < CTL_MAX_PORTS) 3435 return (nexus->initid.id + 3436 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3437 else 3438 return (nexus->initid.id + 3439 ((nexus->targ_port - CTL_MAX_PORTS) * 3440 CTL_MAX_INIT_PER_PORT)); 3441} 3442 3443uint32_t 3444ctl_get_resindex(struct ctl_nexus *nexus) 3445{ 3446 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3447} 3448 3449uint32_t 3450ctl_port_idx(int port_num) 3451{ 3452 if (port_num < CTL_MAX_PORTS) 3453 return(port_num); 3454 else 3455 return(port_num - CTL_MAX_PORTS); 3456} 3457 3458static uint32_t 3459ctl_map_lun(int port_num, uint32_t lun_id) 3460{ 3461 struct ctl_port *port; 3462 3463 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3464 if (port == NULL) 3465 return (UINT32_MAX); 3466 if (port->lun_map == NULL) 3467 return (lun_id); 3468 return (port->lun_map(port->targ_lun_arg, lun_id)); 3469} 3470 3471static uint32_t 3472ctl_map_lun_back(int port_num, uint32_t lun_id) 3473{ 3474 struct ctl_port *port; 3475 uint32_t i; 3476 3477 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3478 if (port->lun_map == NULL) 3479 return (lun_id); 3480 for (i = 0; i < CTL_MAX_LUNS; i++) { 3481 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3482 return (i); 3483 } 3484 return (UINT32_MAX); 3485} 3486 3487/* 3488 * Note: This only works for bitmask sizes that are at least 32 bits, and 3489 * that are a power of 2. 3490 */ 3491int 3492ctl_ffz(uint32_t *mask, uint32_t size) 3493{ 3494 uint32_t num_chunks, num_pieces; 3495 int i, j; 3496 3497 num_chunks = (size >> 5); 3498 if (num_chunks == 0) 3499 num_chunks++; 3500 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3501 3502 for (i = 0; i < num_chunks; i++) { 3503 for (j = 0; j < num_pieces; j++) { 3504 if ((mask[i] & (1 << j)) == 0) 3505 return ((i << 5) + j); 3506 } 3507 } 3508 3509 return (-1); 3510} 3511 3512int 3513ctl_set_mask(uint32_t *mask, uint32_t bit) 3514{ 3515 uint32_t chunk, piece; 3516 3517 chunk = bit >> 5; 3518 piece = bit % (sizeof(uint32_t) * 8); 3519 3520 if ((mask[chunk] & (1 << piece)) != 0) 3521 return (-1); 3522 else 3523 mask[chunk] |= (1 << piece); 3524 3525 return (0); 3526} 3527 3528int 3529ctl_clear_mask(uint32_t *mask, uint32_t bit) 3530{ 3531 uint32_t chunk, piece; 3532 3533 chunk = bit >> 5; 3534 piece = bit % (sizeof(uint32_t) * 8); 3535 3536 if ((mask[chunk] & (1 << piece)) == 0) 3537 return (-1); 3538 else 3539 mask[chunk] &= ~(1 << piece); 3540 3541 return (0); 3542} 3543 3544int 3545ctl_is_set(uint32_t *mask, uint32_t bit) 3546{ 3547 uint32_t chunk, piece; 3548 3549 chunk = bit >> 5; 3550 piece = bit % (sizeof(uint32_t) * 8); 3551 3552 if ((mask[chunk] & (1 << piece)) == 0) 3553 return (0); 3554 else 3555 return (1); 3556} 3557 3558#ifdef unused 3559/* 3560 * The bus, target and lun are optional, they can be filled in later. 3561 * can_wait is used to determine whether we can wait on the malloc or not. 3562 */ 3563union ctl_io* 3564ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3565 uint32_t targ_lun, int can_wait) 3566{ 3567 union ctl_io *io; 3568 3569 if (can_wait) 3570 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3571 else 3572 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3573 3574 if (io != NULL) { 3575 io->io_hdr.io_type = io_type; 3576 io->io_hdr.targ_port = targ_port; 3577 /* 3578 * XXX KDM this needs to change/go away. We need to move 3579 * to a preallocated pool of ctl_scsiio structures. 3580 */ 3581 io->io_hdr.nexus.targ_target.id = targ_target; 3582 io->io_hdr.nexus.targ_lun = targ_lun; 3583 } 3584 3585 return (io); 3586} 3587 3588void 3589ctl_kfree_io(union ctl_io *io) 3590{ 3591 free(io, M_CTL); 3592} 3593#endif /* unused */ 3594 3595/* 3596 * ctl_softc, pool_type, total_ctl_io are passed in. 3597 * npool is passed out. 3598 */ 3599int 3600ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3601 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3602{ 3603 uint32_t i; 3604 union ctl_io *cur_io, *next_io; 3605 struct ctl_io_pool *pool; 3606 int retval; 3607 3608 retval = 0; 3609 3610 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3611 M_NOWAIT | M_ZERO); 3612 if (pool == NULL) { 3613 retval = ENOMEM; 3614 goto bailout; 3615 } 3616 3617 pool->type = pool_type; 3618 pool->ctl_softc = ctl_softc; 3619 3620 mtx_lock(&ctl_softc->pool_lock); 3621 pool->id = ctl_softc->cur_pool_id++; 3622 mtx_unlock(&ctl_softc->pool_lock); 3623 3624 pool->flags = CTL_POOL_FLAG_NONE; 3625 pool->refcount = 1; /* Reference for validity. */ 3626 STAILQ_INIT(&pool->free_queue); 3627 3628 /* 3629 * XXX KDM other options here: 3630 * - allocate a page at a time 3631 * - allocate one big chunk of memory. 3632 * Page allocation might work well, but would take a little more 3633 * tracking. 3634 */ 3635 for (i = 0; i < total_ctl_io; i++) { 3636 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3637 M_NOWAIT); 3638 if (cur_io == NULL) { 3639 retval = ENOMEM; 3640 break; 3641 } 3642 cur_io->io_hdr.pool = pool; 3643 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3644 pool->total_ctl_io++; 3645 pool->free_ctl_io++; 3646 } 3647 3648 if (retval != 0) { 3649 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3650 cur_io != NULL; cur_io = next_io) { 3651 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3652 links); 3653 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3654 ctl_io_hdr, links); 3655 free(cur_io, M_CTLIO); 3656 } 3657 3658 free(pool, M_CTL); 3659 goto bailout; 3660 } 3661 mtx_lock(&ctl_softc->pool_lock); 3662 ctl_softc->num_pools++; 3663 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3664 /* 3665 * Increment our usage count if this is an external consumer, so we 3666 * can't get unloaded until the external consumer (most likely a 3667 * FETD) unloads and frees his pool. 3668 * 3669 * XXX KDM will this increment the caller's module use count, or 3670 * mine? 3671 */ 3672#if 0 3673 if ((pool_type != CTL_POOL_EMERGENCY) 3674 && (pool_type != CTL_POOL_INTERNAL) 3675 && (pool_type != CTL_POOL_4OTHERSC)) 3676 MOD_INC_USE_COUNT; 3677#endif 3678 3679 mtx_unlock(&ctl_softc->pool_lock); 3680 3681 *npool = pool; 3682 3683bailout: 3684 3685 return (retval); 3686} 3687 3688static int 3689ctl_pool_acquire(struct ctl_io_pool *pool) 3690{ 3691 3692 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3693 3694 if (pool->flags & CTL_POOL_FLAG_INVALID) 3695 return (EINVAL); 3696 3697 pool->refcount++; 3698 3699 return (0); 3700} 3701 3702static void 3703ctl_pool_release(struct ctl_io_pool *pool) 3704{ 3705 struct ctl_softc *ctl_softc = pool->ctl_softc; 3706 union ctl_io *io; 3707 3708 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3709 3710 if (--pool->refcount != 0) 3711 return; 3712 3713 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3714 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3715 links); 3716 free(io, M_CTLIO); 3717 } 3718 3719 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3720 ctl_softc->num_pools--; 3721 3722 /* 3723 * XXX KDM will this decrement the caller's usage count or mine? 3724 */ 3725#if 0 3726 if ((pool->type != CTL_POOL_EMERGENCY) 3727 && (pool->type != CTL_POOL_INTERNAL) 3728 && (pool->type != CTL_POOL_4OTHERSC)) 3729 MOD_DEC_USE_COUNT; 3730#endif 3731 3732 free(pool, M_CTL); 3733} 3734 3735void 3736ctl_pool_free(struct ctl_io_pool *pool) 3737{ 3738 struct ctl_softc *ctl_softc; 3739 3740 if (pool == NULL) 3741 return; 3742 3743 ctl_softc = pool->ctl_softc; 3744 mtx_lock(&ctl_softc->pool_lock); 3745 pool->flags |= CTL_POOL_FLAG_INVALID; 3746 ctl_pool_release(pool); 3747 mtx_unlock(&ctl_softc->pool_lock); 3748} 3749 3750/* 3751 * This routine does not block (except for spinlocks of course). 3752 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3753 * possible. 3754 */ 3755union ctl_io * 3756ctl_alloc_io(void *pool_ref) 3757{ 3758 union ctl_io *io; 3759 struct ctl_softc *ctl_softc; 3760 struct ctl_io_pool *pool, *npool; 3761 struct ctl_io_pool *emergency_pool; 3762 3763 pool = (struct ctl_io_pool *)pool_ref; 3764 3765 if (pool == NULL) { 3766 printf("%s: pool is NULL\n", __func__); 3767 return (NULL); 3768 } 3769 3770 emergency_pool = NULL; 3771 3772 ctl_softc = pool->ctl_softc; 3773 3774 mtx_lock(&ctl_softc->pool_lock); 3775 /* 3776 * First, try to get the io structure from the user's pool. 3777 */ 3778 if (ctl_pool_acquire(pool) == 0) { 3779 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3780 if (io != NULL) { 3781 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3782 pool->total_allocated++; 3783 pool->free_ctl_io--; 3784 mtx_unlock(&ctl_softc->pool_lock); 3785 return (io); 3786 } else 3787 ctl_pool_release(pool); 3788 } 3789 /* 3790 * If he doesn't have any io structures left, search for an 3791 * emergency pool and grab one from there. 3792 */ 3793 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3794 if (npool->type != CTL_POOL_EMERGENCY) 3795 continue; 3796 3797 if (ctl_pool_acquire(npool) != 0) 3798 continue; 3799 3800 emergency_pool = npool; 3801 3802 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3803 if (io != NULL) { 3804 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3805 npool->total_allocated++; 3806 npool->free_ctl_io--; 3807 mtx_unlock(&ctl_softc->pool_lock); 3808 return (io); 3809 } else 3810 ctl_pool_release(npool); 3811 } 3812 3813 /* Drop the spinlock before we malloc */ 3814 mtx_unlock(&ctl_softc->pool_lock); 3815 3816 /* 3817 * The emergency pool (if it exists) didn't have one, so try an 3818 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3819 */ 3820 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3821 if (io != NULL) { 3822 /* 3823 * If the emergency pool exists but is empty, add this 3824 * ctl_io to its list when it gets freed. 3825 */ 3826 if (emergency_pool != NULL) { 3827 mtx_lock(&ctl_softc->pool_lock); 3828 if (ctl_pool_acquire(emergency_pool) == 0) { 3829 io->io_hdr.pool = emergency_pool; 3830 emergency_pool->total_ctl_io++; 3831 /* 3832 * Need to bump this, otherwise 3833 * total_allocated and total_freed won't 3834 * match when we no longer have anything 3835 * outstanding. 3836 */ 3837 emergency_pool->total_allocated++; 3838 } 3839 mtx_unlock(&ctl_softc->pool_lock); 3840 } else 3841 io->io_hdr.pool = NULL; 3842 } 3843 3844 return (io); 3845} 3846 3847void 3848ctl_free_io(union ctl_io *io) 3849{ 3850 if (io == NULL) 3851 return; 3852 3853 /* 3854 * If this ctl_io has a pool, return it to that pool. 3855 */ 3856 if (io->io_hdr.pool != NULL) { 3857 struct ctl_io_pool *pool; 3858 3859 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3860 mtx_lock(&pool->ctl_softc->pool_lock); 3861 io->io_hdr.io_type = 0xff; 3862 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3863 pool->total_freed++; 3864 pool->free_ctl_io++; 3865 ctl_pool_release(pool); 3866 mtx_unlock(&pool->ctl_softc->pool_lock); 3867 } else { 3868 /* 3869 * Otherwise, just free it. We probably malloced it and 3870 * the emergency pool wasn't available. 3871 */ 3872 free(io, M_CTLIO); 3873 } 3874 3875} 3876 3877void 3878ctl_zero_io(union ctl_io *io) 3879{ 3880 void *pool_ref; 3881 3882 if (io == NULL) 3883 return; 3884 3885 /* 3886 * May need to preserve linked list pointers at some point too. 3887 */ 3888 pool_ref = io->io_hdr.pool; 3889 3890 memset(io, 0, sizeof(*io)); 3891 3892 io->io_hdr.pool = pool_ref; 3893} 3894 3895/* 3896 * This routine is currently used for internal copies of ctl_ios that need 3897 * to persist for some reason after we've already returned status to the 3898 * FETD. (Thus the flag set.) 3899 * 3900 * XXX XXX 3901 * Note that this makes a blind copy of all fields in the ctl_io, except 3902 * for the pool reference. This includes any memory that has been 3903 * allocated! That memory will no longer be valid after done has been 3904 * called, so this would be VERY DANGEROUS for command that actually does 3905 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3906 * start and stop commands, which don't transfer any data, so this is not a 3907 * problem. If it is used for anything else, the caller would also need to 3908 * allocate data buffer space and this routine would need to be modified to 3909 * copy the data buffer(s) as well. 3910 */ 3911void 3912ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3913{ 3914 void *pool_ref; 3915 3916 if ((src == NULL) 3917 || (dest == NULL)) 3918 return; 3919 3920 /* 3921 * May need to preserve linked list pointers at some point too. 3922 */ 3923 pool_ref = dest->io_hdr.pool; 3924 3925 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3926 3927 dest->io_hdr.pool = pool_ref; 3928 /* 3929 * We need to know that this is an internal copy, and doesn't need 3930 * to get passed back to the FETD that allocated it. 3931 */ 3932 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3933} 3934 3935#ifdef NEEDTOPORT 3936static void 3937ctl_update_power_subpage(struct copan_power_subpage *page) 3938{ 3939 int num_luns, num_partitions, config_type; 3940 struct ctl_softc *softc; 3941 cs_BOOL_t aor_present, shelf_50pct_power; 3942 cs_raidset_personality_t rs_type; 3943 int max_active_luns; 3944 3945 softc = control_softc; 3946 3947 /* subtract out the processor LUN */ 3948 num_luns = softc->num_luns - 1; 3949 /* 3950 * Default to 7 LUNs active, which was the only number we allowed 3951 * in the past. 3952 */ 3953 max_active_luns = 7; 3954 3955 num_partitions = config_GetRsPartitionInfo(); 3956 config_type = config_GetConfigType(); 3957 shelf_50pct_power = config_GetShelfPowerMode(); 3958 aor_present = config_IsAorRsPresent(); 3959 3960 rs_type = ddb_GetRsRaidType(1); 3961 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3962 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3963 EPRINT(0, "Unsupported RS type %d!", rs_type); 3964 } 3965 3966 3967 page->total_luns = num_luns; 3968 3969 switch (config_type) { 3970 case 40: 3971 /* 3972 * In a 40 drive configuration, it doesn't matter what DC 3973 * cards we have, whether we have AOR enabled or not, 3974 * partitioning or not, or what type of RAIDset we have. 3975 * In that scenario, we can power up every LUN we present 3976 * to the user. 3977 */ 3978 max_active_luns = num_luns; 3979 3980 break; 3981 case 64: 3982 if (shelf_50pct_power == CS_FALSE) { 3983 /* 25% power */ 3984 if (aor_present == CS_TRUE) { 3985 if (rs_type == 3986 CS_RAIDSET_PERSONALITY_RAID5) { 3987 max_active_luns = 7; 3988 } else if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID1){ 3990 max_active_luns = 14; 3991 } else { 3992 /* XXX KDM now what?? */ 3993 } 3994 } else { 3995 if (rs_type == 3996 CS_RAIDSET_PERSONALITY_RAID5) { 3997 max_active_luns = 8; 3998 } else if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID1){ 4000 max_active_luns = 16; 4001 } else { 4002 /* XXX KDM now what?? */ 4003 } 4004 } 4005 } else { 4006 /* 50% power */ 4007 /* 4008 * With 50% power in a 64 drive configuration, we 4009 * can power all LUNs we present. 4010 */ 4011 max_active_luns = num_luns; 4012 } 4013 break; 4014 case 112: 4015 if (shelf_50pct_power == CS_FALSE) { 4016 /* 25% power */ 4017 if (aor_present == CS_TRUE) { 4018 if (rs_type == 4019 CS_RAIDSET_PERSONALITY_RAID5) { 4020 max_active_luns = 7; 4021 } else if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID1){ 4023 max_active_luns = 14; 4024 } else { 4025 /* XXX KDM now what?? */ 4026 } 4027 } else { 4028 if (rs_type == 4029 CS_RAIDSET_PERSONALITY_RAID5) { 4030 max_active_luns = 8; 4031 } else if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID1){ 4033 max_active_luns = 16; 4034 } else { 4035 /* XXX KDM now what?? */ 4036 } 4037 } 4038 } else { 4039 /* 50% power */ 4040 if (aor_present == CS_TRUE) { 4041 if (rs_type == 4042 CS_RAIDSET_PERSONALITY_RAID5) { 4043 max_active_luns = 14; 4044 } else if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID1){ 4046 /* 4047 * We're assuming here that disk 4048 * caching is enabled, and so we're 4049 * able to power up half of each 4050 * LUN, and cache all writes. 4051 */ 4052 max_active_luns = num_luns; 4053 } else { 4054 /* XXX KDM now what?? */ 4055 } 4056 } else { 4057 if (rs_type == 4058 CS_RAIDSET_PERSONALITY_RAID5) { 4059 max_active_luns = 15; 4060 } else if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID1){ 4062 max_active_luns = 30; 4063 } else { 4064 /* XXX KDM now what?? */ 4065 } 4066 } 4067 } 4068 break; 4069 default: 4070 /* 4071 * In this case, we have an unknown configuration, so we 4072 * just use the default from above. 4073 */ 4074 break; 4075 } 4076 4077 page->max_active_luns = max_active_luns; 4078#if 0 4079 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4080 page->total_luns, page->max_active_luns); 4081#endif 4082} 4083#endif /* NEEDTOPORT */ 4084 4085/* 4086 * This routine could be used in the future to load default and/or saved 4087 * mode page parameters for a particuar lun. 4088 */ 4089static int 4090ctl_init_page_index(struct ctl_lun *lun) 4091{ 4092 int i; 4093 struct ctl_page_index *page_index; 4094 struct ctl_softc *softc; 4095 4096 memcpy(&lun->mode_pages.index, page_index_template, 4097 sizeof(page_index_template)); 4098 4099 softc = lun->ctl_softc; 4100 4101 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4102 4103 page_index = &lun->mode_pages.index[i]; 4104 /* 4105 * If this is a disk-only mode page, there's no point in 4106 * setting it up. For some pages, we have to have some 4107 * basic information about the disk in order to calculate the 4108 * mode page data. 4109 */ 4110 if ((lun->be_lun->lun_type != T_DIRECT) 4111 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4112 continue; 4113 4114 switch (page_index->page_code & SMPH_PC_MASK) { 4115 case SMS_FORMAT_DEVICE_PAGE: { 4116 struct scsi_format_page *format_page; 4117 4118 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4119 panic("subpage is incorrect!"); 4120 4121 /* 4122 * Sectors per track are set above. Bytes per 4123 * sector need to be set here on a per-LUN basis. 4124 */ 4125 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4126 &format_page_default, 4127 sizeof(format_page_default)); 4128 memcpy(&lun->mode_pages.format_page[ 4129 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4130 sizeof(format_page_changeable)); 4131 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4132 &format_page_default, 4133 sizeof(format_page_default)); 4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4135 &format_page_default, 4136 sizeof(format_page_default)); 4137 4138 format_page = &lun->mode_pages.format_page[ 4139 CTL_PAGE_CURRENT]; 4140 scsi_ulto2b(lun->be_lun->blocksize, 4141 format_page->bytes_per_sector); 4142 4143 format_page = &lun->mode_pages.format_page[ 4144 CTL_PAGE_DEFAULT]; 4145 scsi_ulto2b(lun->be_lun->blocksize, 4146 format_page->bytes_per_sector); 4147 4148 format_page = &lun->mode_pages.format_page[ 4149 CTL_PAGE_SAVED]; 4150 scsi_ulto2b(lun->be_lun->blocksize, 4151 format_page->bytes_per_sector); 4152 4153 page_index->page_data = 4154 (uint8_t *)lun->mode_pages.format_page; 4155 break; 4156 } 4157 case SMS_RIGID_DISK_PAGE: { 4158 struct scsi_rigid_disk_page *rigid_disk_page; 4159 uint32_t sectors_per_cylinder; 4160 uint64_t cylinders; 4161#ifndef __XSCALE__ 4162 int shift; 4163#endif /* !__XSCALE__ */ 4164 4165 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4166 panic("invalid subpage value %d", 4167 page_index->subpage); 4168 4169 /* 4170 * Rotation rate and sectors per track are set 4171 * above. We calculate the cylinders here based on 4172 * capacity. Due to the number of heads and 4173 * sectors per track we're using, smaller arrays 4174 * may turn out to have 0 cylinders. Linux and 4175 * FreeBSD don't pay attention to these mode pages 4176 * to figure out capacity, but Solaris does. It 4177 * seems to deal with 0 cylinders just fine, and 4178 * works out a fake geometry based on the capacity. 4179 */ 4180 memcpy(&lun->mode_pages.rigid_disk_page[ 4181 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4182 sizeof(rigid_disk_page_default)); 4183 memcpy(&lun->mode_pages.rigid_disk_page[ 4184 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4185 sizeof(rigid_disk_page_changeable)); 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4188 sizeof(rigid_disk_page_default)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_SAVED], &rigid_disk_page_default, 4191 sizeof(rigid_disk_page_default)); 4192 4193 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4194 CTL_DEFAULT_HEADS; 4195 4196 /* 4197 * The divide method here will be more accurate, 4198 * probably, but results in floating point being 4199 * used in the kernel on i386 (__udivdi3()). On the 4200 * XScale, though, __udivdi3() is implemented in 4201 * software. 4202 * 4203 * The shift method for cylinder calculation is 4204 * accurate if sectors_per_cylinder is a power of 4205 * 2. Otherwise it might be slightly off -- you 4206 * might have a bit of a truncation problem. 4207 */ 4208#ifdef __XSCALE__ 4209 cylinders = (lun->be_lun->maxlba + 1) / 4210 sectors_per_cylinder; 4211#else 4212 for (shift = 31; shift > 0; shift--) { 4213 if (sectors_per_cylinder & (1 << shift)) 4214 break; 4215 } 4216 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4217#endif 4218 4219 /* 4220 * We've basically got 3 bytes, or 24 bits for the 4221 * cylinder size in the mode page. If we're over, 4222 * just round down to 2^24. 4223 */ 4224 if (cylinders > 0xffffff) 4225 cylinders = 0xffffff; 4226 4227 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4228 CTL_PAGE_CURRENT]; 4229 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_DEFAULT]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4236 CTL_PAGE_SAVED]; 4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4238 4239 page_index->page_data = 4240 (uint8_t *)lun->mode_pages.rigid_disk_page; 4241 break; 4242 } 4243 case SMS_CACHING_PAGE: { 4244 4245 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4246 panic("invalid subpage value %d", 4247 page_index->subpage); 4248 /* 4249 * Defaults should be okay here, no calculations 4250 * needed. 4251 */ 4252 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4253 &caching_page_default, 4254 sizeof(caching_page_default)); 4255 memcpy(&lun->mode_pages.caching_page[ 4256 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4257 sizeof(caching_page_changeable)); 4258 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4259 &caching_page_default, 4260 sizeof(caching_page_default)); 4261 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4262 &caching_page_default, 4263 sizeof(caching_page_default)); 4264 page_index->page_data = 4265 (uint8_t *)lun->mode_pages.caching_page; 4266 break; 4267 } 4268 case SMS_CONTROL_MODE_PAGE: { 4269 4270 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4271 panic("invalid subpage value %d", 4272 page_index->subpage); 4273 4274 /* 4275 * Defaults should be okay here, no calculations 4276 * needed. 4277 */ 4278 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4279 &control_page_default, 4280 sizeof(control_page_default)); 4281 memcpy(&lun->mode_pages.control_page[ 4282 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4283 sizeof(control_page_changeable)); 4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4285 &control_page_default, 4286 sizeof(control_page_default)); 4287 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4288 &control_page_default, 4289 sizeof(control_page_default)); 4290 page_index->page_data = 4291 (uint8_t *)lun->mode_pages.control_page; 4292 break; 4293 4294 } 4295 case SMS_VENDOR_SPECIFIC_PAGE:{ 4296 switch (page_index->subpage) { 4297 case PWR_SUBPAGE_CODE: { 4298 struct copan_power_subpage *current_page, 4299 *saved_page; 4300 4301 memcpy(&lun->mode_pages.power_subpage[ 4302 CTL_PAGE_CURRENT], 4303 &power_page_default, 4304 sizeof(power_page_default)); 4305 memcpy(&lun->mode_pages.power_subpage[ 4306 CTL_PAGE_CHANGEABLE], 4307 &power_page_changeable, 4308 sizeof(power_page_changeable)); 4309 memcpy(&lun->mode_pages.power_subpage[ 4310 CTL_PAGE_DEFAULT], 4311 &power_page_default, 4312 sizeof(power_page_default)); 4313 memcpy(&lun->mode_pages.power_subpage[ 4314 CTL_PAGE_SAVED], 4315 &power_page_default, 4316 sizeof(power_page_default)); 4317 page_index->page_data = 4318 (uint8_t *)lun->mode_pages.power_subpage; 4319 4320 current_page = (struct copan_power_subpage *) 4321 (page_index->page_data + 4322 (page_index->page_len * 4323 CTL_PAGE_CURRENT)); 4324 saved_page = (struct copan_power_subpage *) 4325 (page_index->page_data + 4326 (page_index->page_len * 4327 CTL_PAGE_SAVED)); 4328 break; 4329 } 4330 case APS_SUBPAGE_CODE: { 4331 struct copan_aps_subpage *current_page, 4332 *saved_page; 4333 4334 // This gets set multiple times but 4335 // it should always be the same. It's 4336 // only done during init so who cares. 4337 index_to_aps_page = i; 4338 4339 memcpy(&lun->mode_pages.aps_subpage[ 4340 CTL_PAGE_CURRENT], 4341 &aps_page_default, 4342 sizeof(aps_page_default)); 4343 memcpy(&lun->mode_pages.aps_subpage[ 4344 CTL_PAGE_CHANGEABLE], 4345 &aps_page_changeable, 4346 sizeof(aps_page_changeable)); 4347 memcpy(&lun->mode_pages.aps_subpage[ 4348 CTL_PAGE_DEFAULT], 4349 &aps_page_default, 4350 sizeof(aps_page_default)); 4351 memcpy(&lun->mode_pages.aps_subpage[ 4352 CTL_PAGE_SAVED], 4353 &aps_page_default, 4354 sizeof(aps_page_default)); 4355 page_index->page_data = 4356 (uint8_t *)lun->mode_pages.aps_subpage; 4357 4358 current_page = (struct copan_aps_subpage *) 4359 (page_index->page_data + 4360 (page_index->page_len * 4361 CTL_PAGE_CURRENT)); 4362 saved_page = (struct copan_aps_subpage *) 4363 (page_index->page_data + 4364 (page_index->page_len * 4365 CTL_PAGE_SAVED)); 4366 break; 4367 } 4368 case DBGCNF_SUBPAGE_CODE: { 4369 struct copan_debugconf_subpage *current_page, 4370 *saved_page; 4371 4372 memcpy(&lun->mode_pages.debugconf_subpage[ 4373 CTL_PAGE_CURRENT], 4374 &debugconf_page_default, 4375 sizeof(debugconf_page_default)); 4376 memcpy(&lun->mode_pages.debugconf_subpage[ 4377 CTL_PAGE_CHANGEABLE], 4378 &debugconf_page_changeable, 4379 sizeof(debugconf_page_changeable)); 4380 memcpy(&lun->mode_pages.debugconf_subpage[ 4381 CTL_PAGE_DEFAULT], 4382 &debugconf_page_default, 4383 sizeof(debugconf_page_default)); 4384 memcpy(&lun->mode_pages.debugconf_subpage[ 4385 CTL_PAGE_SAVED], 4386 &debugconf_page_default, 4387 sizeof(debugconf_page_default)); 4388 page_index->page_data = 4389 (uint8_t *)lun->mode_pages.debugconf_subpage; 4390 4391 current_page = (struct copan_debugconf_subpage *) 4392 (page_index->page_data + 4393 (page_index->page_len * 4394 CTL_PAGE_CURRENT)); 4395 saved_page = (struct copan_debugconf_subpage *) 4396 (page_index->page_data + 4397 (page_index->page_len * 4398 CTL_PAGE_SAVED)); 4399 break; 4400 } 4401 default: 4402 panic("invalid subpage value %d", 4403 page_index->subpage); 4404 break; 4405 } 4406 break; 4407 } 4408 default: 4409 panic("invalid page value %d", 4410 page_index->page_code & SMPH_PC_MASK); 4411 break; 4412 } 4413 } 4414 4415 return (CTL_RETVAL_COMPLETE); 4416} 4417 4418/* 4419 * LUN allocation. 4420 * 4421 * Requirements: 4422 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4423 * wants us to allocate the LUN and he can block. 4424 * - ctl_softc is always set 4425 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4426 * 4427 * Returns 0 for success, non-zero (errno) for failure. 4428 */ 4429static int 4430ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4431 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4432{ 4433 struct ctl_lun *nlun, *lun; 4434 struct ctl_port *port; 4435 struct scsi_vpd_id_descriptor *desc; 4436 struct scsi_vpd_id_t10 *t10id; 4437 const char *scsiname, *vendor; 4438 int lun_number, i, lun_malloced; 4439 int devidlen, idlen1, idlen2 = 0, len; 4440 4441 if (be_lun == NULL) 4442 return (EINVAL); 4443 4444 /* 4445 * We currently only support Direct Access or Processor LUN types. 4446 */ 4447 switch (be_lun->lun_type) { 4448 case T_DIRECT: 4449 break; 4450 case T_PROCESSOR: 4451 break; 4452 case T_SEQUENTIAL: 4453 case T_CHANGER: 4454 default: 4455 be_lun->lun_config_status(be_lun->be_lun, 4456 CTL_LUN_CONFIG_FAILURE); 4457 break; 4458 } 4459 if (ctl_lun == NULL) { 4460 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4461 lun_malloced = 1; 4462 } else { 4463 lun_malloced = 0; 4464 lun = ctl_lun; 4465 } 4466 4467 memset(lun, 0, sizeof(*lun)); 4468 if (lun_malloced) 4469 lun->flags = CTL_LUN_MALLOCED; 4470 4471 /* Generate LUN ID. */ 4472 devidlen = max(CTL_DEVID_MIN_LEN, 4473 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4474 idlen1 = sizeof(*t10id) + devidlen; 4475 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4476 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4477 if (scsiname != NULL) { 4478 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4479 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4480 } 4481 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4482 M_CTL, M_WAITOK | M_ZERO); 4483 lun->lun_devid->len = len; 4484 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4485 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4486 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4487 desc->length = idlen1; 4488 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4489 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4490 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4491 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4492 } else { 4493 strncpy(t10id->vendor, vendor, 4494 min(sizeof(t10id->vendor), strlen(vendor))); 4495 } 4496 strncpy((char *)t10id->vendor_spec_id, 4497 (char *)be_lun->device_id, devidlen); 4498 if (scsiname != NULL) { 4499 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4500 desc->length); 4501 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4502 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4503 SVPD_ID_TYPE_SCSI_NAME; 4504 desc->length = idlen2; 4505 strlcpy(desc->identifier, scsiname, idlen2); 4506 } 4507 4508 mtx_lock(&ctl_softc->ctl_lock); 4509 /* 4510 * See if the caller requested a particular LUN number. If so, see 4511 * if it is available. Otherwise, allocate the first available LUN. 4512 */ 4513 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4514 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4515 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4516 mtx_unlock(&ctl_softc->ctl_lock); 4517 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4518 printf("ctl: requested LUN ID %d is higher " 4519 "than CTL_MAX_LUNS - 1 (%d)\n", 4520 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4521 } else { 4522 /* 4523 * XXX KDM return an error, or just assign 4524 * another LUN ID in this case?? 4525 */ 4526 printf("ctl: requested LUN ID %d is already " 4527 "in use\n", be_lun->req_lun_id); 4528 } 4529 if (lun->flags & CTL_LUN_MALLOCED) 4530 free(lun, M_CTL); 4531 be_lun->lun_config_status(be_lun->be_lun, 4532 CTL_LUN_CONFIG_FAILURE); 4533 return (ENOSPC); 4534 } 4535 lun_number = be_lun->req_lun_id; 4536 } else { 4537 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4538 if (lun_number == -1) { 4539 mtx_unlock(&ctl_softc->ctl_lock); 4540 printf("ctl: can't allocate LUN on target %ju, out of " 4541 "LUNs\n", (uintmax_t)target_id.id); 4542 if (lun->flags & CTL_LUN_MALLOCED) 4543 free(lun, M_CTL); 4544 be_lun->lun_config_status(be_lun->be_lun, 4545 CTL_LUN_CONFIG_FAILURE); 4546 return (ENOSPC); 4547 } 4548 } 4549 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4550 4551 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4552 lun->target = target_id; 4553 lun->lun = lun_number; 4554 lun->be_lun = be_lun; 4555 /* 4556 * The processor LUN is always enabled. Disk LUNs come on line 4557 * disabled, and must be enabled by the backend. 4558 */ 4559 lun->flags |= CTL_LUN_DISABLED; 4560 lun->backend = be_lun->be; 4561 be_lun->ctl_lun = lun; 4562 be_lun->lun_id = lun_number; 4563 atomic_add_int(&be_lun->be->num_luns, 1); 4564 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4565 lun->flags |= CTL_LUN_STOPPED; 4566 4567 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4568 lun->flags |= CTL_LUN_INOPERABLE; 4569 4570 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4571 lun->flags |= CTL_LUN_PRIMARY_SC; 4572 4573 lun->ctl_softc = ctl_softc; 4574 TAILQ_INIT(&lun->ooa_queue); 4575 TAILQ_INIT(&lun->blocked_queue); 4576 STAILQ_INIT(&lun->error_list); 4577 4578 /* 4579 * Initialize the mode page index. 4580 */ 4581 ctl_init_page_index(lun); 4582 4583 /* 4584 * Set the poweron UA for all initiators on this LUN only. 4585 */ 4586 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4587 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4588 4589 /* 4590 * Now, before we insert this lun on the lun list, set the lun 4591 * inventory changed UA for all other luns. 4592 */ 4593 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4594 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4595 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4596 } 4597 } 4598 4599 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4600 4601 ctl_softc->ctl_luns[lun_number] = lun; 4602 4603 ctl_softc->num_luns++; 4604 4605 /* Setup statistics gathering */ 4606 lun->stats.device_type = be_lun->lun_type; 4607 lun->stats.lun_number = lun_number; 4608 if (lun->stats.device_type == T_DIRECT) 4609 lun->stats.blocksize = be_lun->blocksize; 4610 else 4611 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4612 for (i = 0;i < CTL_MAX_PORTS;i++) 4613 lun->stats.ports[i].targ_port = i; 4614 4615 mtx_unlock(&ctl_softc->ctl_lock); 4616 4617 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4618 4619 /* 4620 * Run through each registered FETD and bring it online if it isn't 4621 * already. Enable the target ID if it hasn't been enabled, and 4622 * enable this particular LUN. 4623 */ 4624 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4625 int retval; 4626 4627 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4628 if (retval != 0) { 4629 printf("ctl_alloc_lun: FETD %s port %d returned error " 4630 "%d for lun_enable on target %ju lun %d\n", 4631 port->port_name, port->targ_port, retval, 4632 (uintmax_t)target_id.id, lun_number); 4633 } else 4634 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4635 } 4636 return (0); 4637} 4638 4639/* 4640 * Delete a LUN. 4641 * Assumptions: 4642 * - LUN has already been marked invalid and any pending I/O has been taken 4643 * care of. 4644 */ 4645static int 4646ctl_free_lun(struct ctl_lun *lun) 4647{ 4648 struct ctl_softc *softc; 4649#if 0 4650 struct ctl_port *port; 4651#endif 4652 struct ctl_lun *nlun; 4653 int i; 4654 4655 softc = lun->ctl_softc; 4656 4657 mtx_assert(&softc->ctl_lock, MA_OWNED); 4658 4659 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4660 4661 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4662 4663 softc->ctl_luns[lun->lun] = NULL; 4664 4665 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4666 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4667 4668 softc->num_luns--; 4669 4670 /* 4671 * XXX KDM this scheme only works for a single target/multiple LUN 4672 * setup. It needs to be revamped for a multiple target scheme. 4673 * 4674 * XXX KDM this results in port->lun_disable() getting called twice, 4675 * once when ctl_disable_lun() is called, and a second time here. 4676 * We really need to re-think the LUN disable semantics. There 4677 * should probably be several steps/levels to LUN removal: 4678 * - disable 4679 * - invalidate 4680 * - free 4681 * 4682 * Right now we only have a disable method when communicating to 4683 * the front end ports, at least for individual LUNs. 4684 */ 4685#if 0 4686 STAILQ_FOREACH(port, &softc->port_list, links) { 4687 int retval; 4688 4689 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4690 lun->lun); 4691 if (retval != 0) { 4692 printf("ctl_free_lun: FETD %s port %d returned error " 4693 "%d for lun_disable on target %ju lun %jd\n", 4694 port->port_name, port->targ_port, retval, 4695 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4696 } 4697 4698 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4699 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4700 4701 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4702 if (retval != 0) { 4703 printf("ctl_free_lun: FETD %s port %d " 4704 "returned error %d for targ_disable on " 4705 "target %ju\n", port->port_name, 4706 port->targ_port, retval, 4707 (uintmax_t)lun->target.id); 4708 } else 4709 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4710 4711 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4712 continue; 4713 4714#if 0 4715 port->port_offline(port->onoff_arg); 4716 port->status &= ~CTL_PORT_STATUS_ONLINE; 4717#endif 4718 } 4719 } 4720#endif 4721 4722 /* 4723 * Tell the backend to free resources, if this LUN has a backend. 4724 */ 4725 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4726 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4727 4728 mtx_destroy(&lun->lun_lock); 4729 free(lun->lun_devid, M_CTL); 4730 if (lun->flags & CTL_LUN_MALLOCED) 4731 free(lun, M_CTL); 4732 4733 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4734 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4735 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4736 } 4737 } 4738 4739 return (0); 4740} 4741 4742static void 4743ctl_create_lun(struct ctl_be_lun *be_lun) 4744{ 4745 struct ctl_softc *ctl_softc; 4746 4747 ctl_softc = control_softc; 4748 4749 /* 4750 * ctl_alloc_lun() should handle all potential failure cases. 4751 */ 4752 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4753} 4754 4755int 4756ctl_add_lun(struct ctl_be_lun *be_lun) 4757{ 4758 struct ctl_softc *ctl_softc = control_softc; 4759 4760 mtx_lock(&ctl_softc->ctl_lock); 4761 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4762 mtx_unlock(&ctl_softc->ctl_lock); 4763 wakeup(&ctl_softc->pending_lun_queue); 4764 4765 return (0); 4766} 4767 4768int 4769ctl_enable_lun(struct ctl_be_lun *be_lun) 4770{ 4771 struct ctl_softc *ctl_softc; 4772 struct ctl_port *port, *nport; 4773 struct ctl_lun *lun; 4774 int retval; 4775 4776 ctl_softc = control_softc; 4777 4778 lun = (struct ctl_lun *)be_lun->ctl_lun; 4779 4780 mtx_lock(&ctl_softc->ctl_lock); 4781 mtx_lock(&lun->lun_lock); 4782 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4783 /* 4784 * eh? Why did we get called if the LUN is already 4785 * enabled? 4786 */ 4787 mtx_unlock(&lun->lun_lock); 4788 mtx_unlock(&ctl_softc->ctl_lock); 4789 return (0); 4790 } 4791 lun->flags &= ~CTL_LUN_DISABLED; 4792 mtx_unlock(&lun->lun_lock); 4793 4794 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4795 nport = STAILQ_NEXT(port, links); 4796 4797 /* 4798 * Drop the lock while we call the FETD's enable routine. 4799 * This can lead to a callback into CTL (at least in the 4800 * case of the internal initiator frontend. 4801 */ 4802 mtx_unlock(&ctl_softc->ctl_lock); 4803 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4804 mtx_lock(&ctl_softc->ctl_lock); 4805 if (retval != 0) { 4806 printf("%s: FETD %s port %d returned error " 4807 "%d for lun_enable on target %ju lun %jd\n", 4808 __func__, port->port_name, port->targ_port, retval, 4809 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4810 } 4811#if 0 4812 else { 4813 /* NOTE: TODO: why does lun enable affect port status? */ 4814 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4815 } 4816#endif 4817 } 4818 4819 mtx_unlock(&ctl_softc->ctl_lock); 4820 4821 return (0); 4822} 4823 4824int 4825ctl_disable_lun(struct ctl_be_lun *be_lun) 4826{ 4827 struct ctl_softc *ctl_softc; 4828 struct ctl_port *port; 4829 struct ctl_lun *lun; 4830 int retval; 4831 4832 ctl_softc = control_softc; 4833 4834 lun = (struct ctl_lun *)be_lun->ctl_lun; 4835 4836 mtx_lock(&ctl_softc->ctl_lock); 4837 mtx_lock(&lun->lun_lock); 4838 if (lun->flags & CTL_LUN_DISABLED) { 4839 mtx_unlock(&lun->lun_lock); 4840 mtx_unlock(&ctl_softc->ctl_lock); 4841 return (0); 4842 } 4843 lun->flags |= CTL_LUN_DISABLED; 4844 mtx_unlock(&lun->lun_lock); 4845 4846 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4847 mtx_unlock(&ctl_softc->ctl_lock); 4848 /* 4849 * Drop the lock before we call the frontend's disable 4850 * routine, to avoid lock order reversals. 4851 * 4852 * XXX KDM what happens if the frontend list changes while 4853 * we're traversing it? It's unlikely, but should be handled. 4854 */ 4855 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4856 lun->lun); 4857 mtx_lock(&ctl_softc->ctl_lock); 4858 if (retval != 0) { 4859 printf("ctl_alloc_lun: FETD %s port %d returned error " 4860 "%d for lun_disable on target %ju lun %jd\n", 4861 port->port_name, port->targ_port, retval, 4862 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4863 } 4864 } 4865 4866 mtx_unlock(&ctl_softc->ctl_lock); 4867 4868 return (0); 4869} 4870 4871int 4872ctl_start_lun(struct ctl_be_lun *be_lun) 4873{ 4874 struct ctl_softc *ctl_softc; 4875 struct ctl_lun *lun; 4876 4877 ctl_softc = control_softc; 4878 4879 lun = (struct ctl_lun *)be_lun->ctl_lun; 4880 4881 mtx_lock(&lun->lun_lock); 4882 lun->flags &= ~CTL_LUN_STOPPED; 4883 mtx_unlock(&lun->lun_lock); 4884 4885 return (0); 4886} 4887 4888int 4889ctl_stop_lun(struct ctl_be_lun *be_lun) 4890{ 4891 struct ctl_softc *ctl_softc; 4892 struct ctl_lun *lun; 4893 4894 ctl_softc = control_softc; 4895 4896 lun = (struct ctl_lun *)be_lun->ctl_lun; 4897 4898 mtx_lock(&lun->lun_lock); 4899 lun->flags |= CTL_LUN_STOPPED; 4900 mtx_unlock(&lun->lun_lock); 4901 4902 return (0); 4903} 4904 4905int 4906ctl_lun_offline(struct ctl_be_lun *be_lun) 4907{ 4908 struct ctl_softc *ctl_softc; 4909 struct ctl_lun *lun; 4910 4911 ctl_softc = control_softc; 4912 4913 lun = (struct ctl_lun *)be_lun->ctl_lun; 4914 4915 mtx_lock(&lun->lun_lock); 4916 lun->flags |= CTL_LUN_OFFLINE; 4917 mtx_unlock(&lun->lun_lock); 4918 4919 return (0); 4920} 4921 4922int 4923ctl_lun_online(struct ctl_be_lun *be_lun) 4924{ 4925 struct ctl_softc *ctl_softc; 4926 struct ctl_lun *lun; 4927 4928 ctl_softc = control_softc; 4929 4930 lun = (struct ctl_lun *)be_lun->ctl_lun; 4931 4932 mtx_lock(&lun->lun_lock); 4933 lun->flags &= ~CTL_LUN_OFFLINE; 4934 mtx_unlock(&lun->lun_lock); 4935 4936 return (0); 4937} 4938 4939int 4940ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4941{ 4942 struct ctl_softc *ctl_softc; 4943 struct ctl_lun *lun; 4944 4945 ctl_softc = control_softc; 4946 4947 lun = (struct ctl_lun *)be_lun->ctl_lun; 4948 4949 mtx_lock(&lun->lun_lock); 4950 4951 /* 4952 * The LUN needs to be disabled before it can be marked invalid. 4953 */ 4954 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4955 mtx_unlock(&lun->lun_lock); 4956 return (-1); 4957 } 4958 /* 4959 * Mark the LUN invalid. 4960 */ 4961 lun->flags |= CTL_LUN_INVALID; 4962 4963 /* 4964 * If there is nothing in the OOA queue, go ahead and free the LUN. 4965 * If we have something in the OOA queue, we'll free it when the 4966 * last I/O completes. 4967 */ 4968 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4969 mtx_unlock(&lun->lun_lock); 4970 mtx_lock(&ctl_softc->ctl_lock); 4971 ctl_free_lun(lun); 4972 mtx_unlock(&ctl_softc->ctl_lock); 4973 } else 4974 mtx_unlock(&lun->lun_lock); 4975 4976 return (0); 4977} 4978 4979int 4980ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4981{ 4982 struct ctl_softc *ctl_softc; 4983 struct ctl_lun *lun; 4984 4985 ctl_softc = control_softc; 4986 lun = (struct ctl_lun *)be_lun->ctl_lun; 4987 4988 mtx_lock(&lun->lun_lock); 4989 lun->flags |= CTL_LUN_INOPERABLE; 4990 mtx_unlock(&lun->lun_lock); 4991 4992 return (0); 4993} 4994 4995int 4996ctl_lun_operable(struct ctl_be_lun *be_lun) 4997{ 4998 struct ctl_softc *ctl_softc; 4999 struct ctl_lun *lun; 5000 5001 ctl_softc = control_softc; 5002 lun = (struct ctl_lun *)be_lun->ctl_lun; 5003 5004 mtx_lock(&lun->lun_lock); 5005 lun->flags &= ~CTL_LUN_INOPERABLE; 5006 mtx_unlock(&lun->lun_lock); 5007 5008 return (0); 5009} 5010 5011int 5012ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5013 int lock) 5014{ 5015 struct ctl_softc *softc; 5016 struct ctl_lun *lun; 5017 struct copan_aps_subpage *current_sp; 5018 struct ctl_page_index *page_index; 5019 int i; 5020 5021 softc = control_softc; 5022 5023 mtx_lock(&softc->ctl_lock); 5024 5025 lun = (struct ctl_lun *)be_lun->ctl_lun; 5026 mtx_lock(&lun->lun_lock); 5027 5028 page_index = NULL; 5029 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5030 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5031 APS_PAGE_CODE) 5032 continue; 5033 5034 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5035 continue; 5036 page_index = &lun->mode_pages.index[i]; 5037 } 5038 5039 if (page_index == NULL) { 5040 mtx_unlock(&lun->lun_lock); 5041 mtx_unlock(&softc->ctl_lock); 5042 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5043 (uintmax_t)lun->lun); 5044 return (1); 5045 } 5046#if 0 5047 if ((softc->aps_locked_lun != 0) 5048 && (softc->aps_locked_lun != lun->lun)) { 5049 printf("%s: attempt to lock LUN %llu when %llu is already " 5050 "locked\n"); 5051 mtx_unlock(&lun->lun_lock); 5052 mtx_unlock(&softc->ctl_lock); 5053 return (1); 5054 } 5055#endif 5056 5057 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5058 (page_index->page_len * CTL_PAGE_CURRENT)); 5059 5060 if (lock != 0) { 5061 current_sp->lock_active = APS_LOCK_ACTIVE; 5062 softc->aps_locked_lun = lun->lun; 5063 } else { 5064 current_sp->lock_active = 0; 5065 softc->aps_locked_lun = 0; 5066 } 5067 5068 5069 /* 5070 * If we're in HA mode, try to send the lock message to the other 5071 * side. 5072 */ 5073 if (ctl_is_single == 0) { 5074 int isc_retval; 5075 union ctl_ha_msg lock_msg; 5076 5077 lock_msg.hdr.nexus = *nexus; 5078 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5079 if (lock != 0) 5080 lock_msg.aps.lock_flag = 1; 5081 else 5082 lock_msg.aps.lock_flag = 0; 5083 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5084 sizeof(lock_msg), 0); 5085 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5086 printf("%s: APS (lock=%d) error returned from " 5087 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5088 mtx_unlock(&lun->lun_lock); 5089 mtx_unlock(&softc->ctl_lock); 5090 return (1); 5091 } 5092 } 5093 5094 mtx_unlock(&lun->lun_lock); 5095 mtx_unlock(&softc->ctl_lock); 5096 5097 return (0); 5098} 5099 5100void 5101ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5102{ 5103 struct ctl_lun *lun; 5104 struct ctl_softc *softc; 5105 int i; 5106 5107 softc = control_softc; 5108 5109 lun = (struct ctl_lun *)be_lun->ctl_lun; 5110 5111 mtx_lock(&lun->lun_lock); 5112 5113 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5114 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 5115 5116 mtx_unlock(&lun->lun_lock); 5117} 5118 5119/* 5120 * Backend "memory move is complete" callback for requests that never 5121 * make it down to say RAIDCore's configuration code. 5122 */ 5123int 5124ctl_config_move_done(union ctl_io *io) 5125{ 5126 int retval; 5127 5128 retval = CTL_RETVAL_COMPLETE; 5129 5130 5131 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5132 /* 5133 * XXX KDM this shouldn't happen, but what if it does? 5134 */ 5135 if (io->io_hdr.io_type != CTL_IO_SCSI) 5136 panic("I/O type isn't CTL_IO_SCSI!"); 5137 5138 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 io->io_hdr.status = CTL_SUCCESS; 5142 else if ((io->io_hdr.port_status != 0) 5143 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5144 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5145 /* 5146 * For hardware error sense keys, the sense key 5147 * specific value is defined to be a retry count, 5148 * but we use it to pass back an internal FETD 5149 * error code. XXX KDM Hopefully the FETD is only 5150 * using 16 bits for an error code, since that's 5151 * all the space we have in the sks field. 5152 */ 5153 ctl_set_internal_failure(&io->scsiio, 5154 /*sks_valid*/ 1, 5155 /*retry_count*/ 5156 io->io_hdr.port_status); 5157 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5158 free(io->scsiio.kern_data_ptr, M_CTL); 5159 ctl_done(io); 5160 goto bailout; 5161 } 5162 5163 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5164 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5165 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5166 /* 5167 * XXX KDM just assuming a single pointer here, and not a 5168 * S/G list. If we start using S/G lists for config data, 5169 * we'll need to know how to clean them up here as well. 5170 */ 5171 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5172 free(io->scsiio.kern_data_ptr, M_CTL); 5173 /* Hopefully the user has already set the status... */ 5174 ctl_done(io); 5175 } else { 5176 /* 5177 * XXX KDM now we need to continue data movement. Some 5178 * options: 5179 * - call ctl_scsiio() again? We don't do this for data 5180 * writes, because for those at least we know ahead of 5181 * time where the write will go and how long it is. For 5182 * config writes, though, that information is largely 5183 * contained within the write itself, thus we need to 5184 * parse out the data again. 5185 * 5186 * - Call some other function once the data is in? 5187 */ 5188 5189 /* 5190 * XXX KDM call ctl_scsiio() again for now, and check flag 5191 * bits to see whether we're allocated or not. 5192 */ 5193 retval = ctl_scsiio(&io->scsiio); 5194 } 5195bailout: 5196 return (retval); 5197} 5198 5199/* 5200 * This gets called by a backend driver when it is done with a 5201 * data_submit method. 5202 */ 5203void 5204ctl_data_submit_done(union ctl_io *io) 5205{ 5206 /* 5207 * If the IO_CONT flag is set, we need to call the supplied 5208 * function to continue processing the I/O, instead of completing 5209 * the I/O just yet. 5210 * 5211 * If there is an error, though, we don't want to keep processing. 5212 * Instead, just send status back to the initiator. 5213 */ 5214 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5215 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5216 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5217 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5218 io->scsiio.io_cont(io); 5219 return; 5220 } 5221 ctl_done(io); 5222} 5223 5224/* 5225 * This gets called by a backend driver when it is done with a 5226 * configuration write. 5227 */ 5228void 5229ctl_config_write_done(union ctl_io *io) 5230{ 5231 /* 5232 * If the IO_CONT flag is set, we need to call the supplied 5233 * function to continue processing the I/O, instead of completing 5234 * the I/O just yet. 5235 * 5236 * If there is an error, though, we don't want to keep processing. 5237 * Instead, just send status back to the initiator. 5238 */ 5239 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5240 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5241 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5242 io->scsiio.io_cont(io); 5243 return; 5244 } 5245 /* 5246 * Since a configuration write can be done for commands that actually 5247 * have data allocated, like write buffer, and commands that have 5248 * no data, like start/stop unit, we need to check here. 5249 */ 5250 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5251 free(io->scsiio.kern_data_ptr, M_CTL); 5252 ctl_done(io); 5253} 5254 5255/* 5256 * SCSI release command. 5257 */ 5258int 5259ctl_scsi_release(struct ctl_scsiio *ctsio) 5260{ 5261 int length, longid, thirdparty_id, resv_id; 5262 struct ctl_softc *ctl_softc; 5263 struct ctl_lun *lun; 5264 5265 length = 0; 5266 resv_id = 0; 5267 5268 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5269 5270 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5271 ctl_softc = control_softc; 5272 5273 switch (ctsio->cdb[0]) { 5274 case RELEASE_10: { 5275 struct scsi_release_10 *cdb; 5276 5277 cdb = (struct scsi_release_10 *)ctsio->cdb; 5278 5279 if (cdb->byte2 & SR10_LONGID) 5280 longid = 1; 5281 else 5282 thirdparty_id = cdb->thirdparty_id; 5283 5284 resv_id = cdb->resv_id; 5285 length = scsi_2btoul(cdb->length); 5286 break; 5287 } 5288 } 5289 5290 5291 /* 5292 * XXX KDM right now, we only support LUN reservation. We don't 5293 * support 3rd party reservations, or extent reservations, which 5294 * might actually need the parameter list. If we've gotten this 5295 * far, we've got a LUN reservation. Anything else got kicked out 5296 * above. So, according to SPC, ignore the length. 5297 */ 5298 length = 0; 5299 5300 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5301 && (length > 0)) { 5302 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5303 ctsio->kern_data_len = length; 5304 ctsio->kern_total_len = length; 5305 ctsio->kern_data_resid = 0; 5306 ctsio->kern_rel_offset = 0; 5307 ctsio->kern_sg_entries = 0; 5308 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5309 ctsio->be_move_done = ctl_config_move_done; 5310 ctl_datamove((union ctl_io *)ctsio); 5311 5312 return (CTL_RETVAL_COMPLETE); 5313 } 5314 5315 if (length > 0) 5316 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5317 5318 mtx_lock(&lun->lun_lock); 5319 5320 /* 5321 * According to SPC, it is not an error for an intiator to attempt 5322 * to release a reservation on a LUN that isn't reserved, or that 5323 * is reserved by another initiator. The reservation can only be 5324 * released, though, by the initiator who made it or by one of 5325 * several reset type events. 5326 */ 5327 if (lun->flags & CTL_LUN_RESERVED) { 5328 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5329 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5330 && (ctsio->io_hdr.nexus.targ_target.id == 5331 lun->rsv_nexus.targ_target.id)) { 5332 lun->flags &= ~CTL_LUN_RESERVED; 5333 } 5334 } 5335 5336 mtx_unlock(&lun->lun_lock); 5337 5338 ctsio->scsi_status = SCSI_STATUS_OK; 5339 ctsio->io_hdr.status = CTL_SUCCESS; 5340 5341 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5342 free(ctsio->kern_data_ptr, M_CTL); 5343 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5344 } 5345 5346 ctl_done((union ctl_io *)ctsio); 5347 return (CTL_RETVAL_COMPLETE); 5348} 5349 5350int 5351ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5352{ 5353 int extent, thirdparty, longid; 5354 int resv_id, length; 5355 uint64_t thirdparty_id; 5356 struct ctl_softc *ctl_softc; 5357 struct ctl_lun *lun; 5358 5359 extent = 0; 5360 thirdparty = 0; 5361 longid = 0; 5362 resv_id = 0; 5363 length = 0; 5364 thirdparty_id = 0; 5365 5366 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5367 5368 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5369 ctl_softc = control_softc; 5370 5371 switch (ctsio->cdb[0]) { 5372 case RESERVE_10: { 5373 struct scsi_reserve_10 *cdb; 5374 5375 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5376 5377 if (cdb->byte2 & SR10_LONGID) 5378 longid = 1; 5379 else 5380 thirdparty_id = cdb->thirdparty_id; 5381 5382 resv_id = cdb->resv_id; 5383 length = scsi_2btoul(cdb->length); 5384 break; 5385 } 5386 } 5387 5388 /* 5389 * XXX KDM right now, we only support LUN reservation. We don't 5390 * support 3rd party reservations, or extent reservations, which 5391 * might actually need the parameter list. If we've gotten this 5392 * far, we've got a LUN reservation. Anything else got kicked out 5393 * above. So, according to SPC, ignore the length. 5394 */ 5395 length = 0; 5396 5397 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5398 && (length > 0)) { 5399 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5400 ctsio->kern_data_len = length; 5401 ctsio->kern_total_len = length; 5402 ctsio->kern_data_resid = 0; 5403 ctsio->kern_rel_offset = 0; 5404 ctsio->kern_sg_entries = 0; 5405 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5406 ctsio->be_move_done = ctl_config_move_done; 5407 ctl_datamove((union ctl_io *)ctsio); 5408 5409 return (CTL_RETVAL_COMPLETE); 5410 } 5411 5412 if (length > 0) 5413 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5414 5415 mtx_lock(&lun->lun_lock); 5416 if (lun->flags & CTL_LUN_RESERVED) { 5417 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5418 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5419 || (ctsio->io_hdr.nexus.targ_target.id != 5420 lun->rsv_nexus.targ_target.id)) { 5421 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5422 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5423 goto bailout; 5424 } 5425 } 5426 5427 lun->flags |= CTL_LUN_RESERVED; 5428 lun->rsv_nexus = ctsio->io_hdr.nexus; 5429 5430 ctsio->scsi_status = SCSI_STATUS_OK; 5431 ctsio->io_hdr.status = CTL_SUCCESS; 5432 5433bailout: 5434 mtx_unlock(&lun->lun_lock); 5435 5436 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5437 free(ctsio->kern_data_ptr, M_CTL); 5438 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5439 } 5440 5441 ctl_done((union ctl_io *)ctsio); 5442 return (CTL_RETVAL_COMPLETE); 5443} 5444 5445int 5446ctl_start_stop(struct ctl_scsiio *ctsio) 5447{ 5448 struct scsi_start_stop_unit *cdb; 5449 struct ctl_lun *lun; 5450 struct ctl_softc *ctl_softc; 5451 int retval; 5452 5453 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5454 5455 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5456 ctl_softc = control_softc; 5457 retval = 0; 5458 5459 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5460 5461 /* 5462 * XXX KDM 5463 * We don't support the immediate bit on a stop unit. In order to 5464 * do that, we would need to code up a way to know that a stop is 5465 * pending, and hold off any new commands until it completes, one 5466 * way or another. Then we could accept or reject those commands 5467 * depending on its status. We would almost need to do the reverse 5468 * of what we do below for an immediate start -- return the copy of 5469 * the ctl_io to the FETD with status to send to the host (and to 5470 * free the copy!) and then free the original I/O once the stop 5471 * actually completes. That way, the OOA queue mechanism can work 5472 * to block commands that shouldn't proceed. Another alternative 5473 * would be to put the copy in the queue in place of the original, 5474 * and return the original back to the caller. That could be 5475 * slightly safer.. 5476 */ 5477 if ((cdb->byte2 & SSS_IMMED) 5478 && ((cdb->how & SSS_START) == 0)) { 5479 ctl_set_invalid_field(ctsio, 5480 /*sks_valid*/ 1, 5481 /*command*/ 1, 5482 /*field*/ 1, 5483 /*bit_valid*/ 1, 5484 /*bit*/ 0); 5485 ctl_done((union ctl_io *)ctsio); 5486 return (CTL_RETVAL_COMPLETE); 5487 } 5488 5489 if ((lun->flags & CTL_LUN_PR_RESERVED) 5490 && ((cdb->how & SSS_START)==0)) { 5491 uint32_t residx; 5492 5493 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5494 if (!lun->per_res[residx].registered 5495 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5496 5497 ctl_set_reservation_conflict(ctsio); 5498 ctl_done((union ctl_io *)ctsio); 5499 return (CTL_RETVAL_COMPLETE); 5500 } 5501 } 5502 5503 /* 5504 * If there is no backend on this device, we can't start or stop 5505 * it. In theory we shouldn't get any start/stop commands in the 5506 * first place at this level if the LUN doesn't have a backend. 5507 * That should get stopped by the command decode code. 5508 */ 5509 if (lun->backend == NULL) { 5510 ctl_set_invalid_opcode(ctsio); 5511 ctl_done((union ctl_io *)ctsio); 5512 return (CTL_RETVAL_COMPLETE); 5513 } 5514 5515 /* 5516 * XXX KDM Copan-specific offline behavior. 5517 * Figure out a reasonable way to port this? 5518 */ 5519#ifdef NEEDTOPORT 5520 mtx_lock(&lun->lun_lock); 5521 5522 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5523 && (lun->flags & CTL_LUN_OFFLINE)) { 5524 /* 5525 * If the LUN is offline, and the on/offline bit isn't set, 5526 * reject the start or stop. Otherwise, let it through. 5527 */ 5528 mtx_unlock(&lun->lun_lock); 5529 ctl_set_lun_not_ready(ctsio); 5530 ctl_done((union ctl_io *)ctsio); 5531 } else { 5532 mtx_unlock(&lun->lun_lock); 5533#endif /* NEEDTOPORT */ 5534 /* 5535 * This could be a start or a stop when we're online, 5536 * or a stop/offline or start/online. A start or stop when 5537 * we're offline is covered in the case above. 5538 */ 5539 /* 5540 * In the non-immediate case, we send the request to 5541 * the backend and return status to the user when 5542 * it is done. 5543 * 5544 * In the immediate case, we allocate a new ctl_io 5545 * to hold a copy of the request, and send that to 5546 * the backend. We then set good status on the 5547 * user's request and return it immediately. 5548 */ 5549 if (cdb->byte2 & SSS_IMMED) { 5550 union ctl_io *new_io; 5551 5552 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5553 if (new_io == NULL) { 5554 ctl_set_busy(ctsio); 5555 ctl_done((union ctl_io *)ctsio); 5556 } else { 5557 ctl_copy_io((union ctl_io *)ctsio, 5558 new_io); 5559 retval = lun->backend->config_write(new_io); 5560 ctl_set_success(ctsio); 5561 ctl_done((union ctl_io *)ctsio); 5562 } 5563 } else { 5564 retval = lun->backend->config_write( 5565 (union ctl_io *)ctsio); 5566 } 5567#ifdef NEEDTOPORT 5568 } 5569#endif 5570 return (retval); 5571} 5572 5573/* 5574 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5575 * we don't really do anything with the LBA and length fields if the user 5576 * passes them in. Instead we'll just flush out the cache for the entire 5577 * LUN. 5578 */ 5579int 5580ctl_sync_cache(struct ctl_scsiio *ctsio) 5581{ 5582 struct ctl_lun *lun; 5583 struct ctl_softc *ctl_softc; 5584 uint64_t starting_lba; 5585 uint32_t block_count; 5586 int retval; 5587 5588 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5589 5590 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5591 ctl_softc = control_softc; 5592 retval = 0; 5593 5594 switch (ctsio->cdb[0]) { 5595 case SYNCHRONIZE_CACHE: { 5596 struct scsi_sync_cache *cdb; 5597 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5598 5599 starting_lba = scsi_4btoul(cdb->begin_lba); 5600 block_count = scsi_2btoul(cdb->lb_count); 5601 break; 5602 } 5603 case SYNCHRONIZE_CACHE_16: { 5604 struct scsi_sync_cache_16 *cdb; 5605 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5606 5607 starting_lba = scsi_8btou64(cdb->begin_lba); 5608 block_count = scsi_4btoul(cdb->lb_count); 5609 break; 5610 } 5611 default: 5612 ctl_set_invalid_opcode(ctsio); 5613 ctl_done((union ctl_io *)ctsio); 5614 goto bailout; 5615 break; /* NOTREACHED */ 5616 } 5617 5618 /* 5619 * We check the LBA and length, but don't do anything with them. 5620 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5621 * get flushed. This check will just help satisfy anyone who wants 5622 * to see an error for an out of range LBA. 5623 */ 5624 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5625 ctl_set_lba_out_of_range(ctsio); 5626 ctl_done((union ctl_io *)ctsio); 5627 goto bailout; 5628 } 5629 5630 /* 5631 * If this LUN has no backend, we can't flush the cache anyway. 5632 */ 5633 if (lun->backend == NULL) { 5634 ctl_set_invalid_opcode(ctsio); 5635 ctl_done((union ctl_io *)ctsio); 5636 goto bailout; 5637 } 5638 5639 /* 5640 * Check to see whether we're configured to send the SYNCHRONIZE 5641 * CACHE command directly to the back end. 5642 */ 5643 mtx_lock(&lun->lun_lock); 5644 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5645 && (++(lun->sync_count) >= lun->sync_interval)) { 5646 lun->sync_count = 0; 5647 mtx_unlock(&lun->lun_lock); 5648 retval = lun->backend->config_write((union ctl_io *)ctsio); 5649 } else { 5650 mtx_unlock(&lun->lun_lock); 5651 ctl_set_success(ctsio); 5652 ctl_done((union ctl_io *)ctsio); 5653 } 5654 5655bailout: 5656 5657 return (retval); 5658} 5659 5660int 5661ctl_format(struct ctl_scsiio *ctsio) 5662{ 5663 struct scsi_format *cdb; 5664 struct ctl_lun *lun; 5665 struct ctl_softc *ctl_softc; 5666 int length, defect_list_len; 5667 5668 CTL_DEBUG_PRINT(("ctl_format\n")); 5669 5670 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5671 ctl_softc = control_softc; 5672 5673 cdb = (struct scsi_format *)ctsio->cdb; 5674 5675 length = 0; 5676 if (cdb->byte2 & SF_FMTDATA) { 5677 if (cdb->byte2 & SF_LONGLIST) 5678 length = sizeof(struct scsi_format_header_long); 5679 else 5680 length = sizeof(struct scsi_format_header_short); 5681 } 5682 5683 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5684 && (length > 0)) { 5685 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5686 ctsio->kern_data_len = length; 5687 ctsio->kern_total_len = length; 5688 ctsio->kern_data_resid = 0; 5689 ctsio->kern_rel_offset = 0; 5690 ctsio->kern_sg_entries = 0; 5691 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5692 ctsio->be_move_done = ctl_config_move_done; 5693 ctl_datamove((union ctl_io *)ctsio); 5694 5695 return (CTL_RETVAL_COMPLETE); 5696 } 5697 5698 defect_list_len = 0; 5699 5700 if (cdb->byte2 & SF_FMTDATA) { 5701 if (cdb->byte2 & SF_LONGLIST) { 5702 struct scsi_format_header_long *header; 5703 5704 header = (struct scsi_format_header_long *) 5705 ctsio->kern_data_ptr; 5706 5707 defect_list_len = scsi_4btoul(header->defect_list_len); 5708 if (defect_list_len != 0) { 5709 ctl_set_invalid_field(ctsio, 5710 /*sks_valid*/ 1, 5711 /*command*/ 0, 5712 /*field*/ 2, 5713 /*bit_valid*/ 0, 5714 /*bit*/ 0); 5715 goto bailout; 5716 } 5717 } else { 5718 struct scsi_format_header_short *header; 5719 5720 header = (struct scsi_format_header_short *) 5721 ctsio->kern_data_ptr; 5722 5723 defect_list_len = scsi_2btoul(header->defect_list_len); 5724 if (defect_list_len != 0) { 5725 ctl_set_invalid_field(ctsio, 5726 /*sks_valid*/ 1, 5727 /*command*/ 0, 5728 /*field*/ 2, 5729 /*bit_valid*/ 0, 5730 /*bit*/ 0); 5731 goto bailout; 5732 } 5733 } 5734 } 5735 5736 /* 5737 * The format command will clear out the "Medium format corrupted" 5738 * status if set by the configuration code. That status is really 5739 * just a way to notify the host that we have lost the media, and 5740 * get them to issue a command that will basically make them think 5741 * they're blowing away the media. 5742 */ 5743 mtx_lock(&lun->lun_lock); 5744 lun->flags &= ~CTL_LUN_INOPERABLE; 5745 mtx_unlock(&lun->lun_lock); 5746 5747 ctsio->scsi_status = SCSI_STATUS_OK; 5748 ctsio->io_hdr.status = CTL_SUCCESS; 5749bailout: 5750 5751 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5752 free(ctsio->kern_data_ptr, M_CTL); 5753 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5754 } 5755 5756 ctl_done((union ctl_io *)ctsio); 5757 return (CTL_RETVAL_COMPLETE); 5758} 5759 5760int 5761ctl_read_buffer(struct ctl_scsiio *ctsio) 5762{ 5763 struct scsi_read_buffer *cdb; 5764 struct ctl_lun *lun; 5765 int buffer_offset, len; 5766 static uint8_t descr[4]; 5767 static uint8_t echo_descr[4] = { 0 }; 5768 5769 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5770 5771 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5772 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5773 5774 if (lun->flags & CTL_LUN_PR_RESERVED) { 5775 uint32_t residx; 5776 5777 /* 5778 * XXX KDM need a lock here. 5779 */ 5780 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5781 if ((lun->res_type == SPR_TYPE_EX_AC 5782 && residx != lun->pr_res_idx) 5783 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5784 || lun->res_type == SPR_TYPE_EX_AC_AR) 5785 && !lun->per_res[residx].registered)) { 5786 ctl_set_reservation_conflict(ctsio); 5787 ctl_done((union ctl_io *)ctsio); 5788 return (CTL_RETVAL_COMPLETE); 5789 } 5790 } 5791 5792 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5793 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5794 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5795 ctl_set_invalid_field(ctsio, 5796 /*sks_valid*/ 1, 5797 /*command*/ 1, 5798 /*field*/ 1, 5799 /*bit_valid*/ 1, 5800 /*bit*/ 4); 5801 ctl_done((union ctl_io *)ctsio); 5802 return (CTL_RETVAL_COMPLETE); 5803 } 5804 5805 len = scsi_3btoul(cdb->length); 5806 buffer_offset = scsi_3btoul(cdb->offset); 5807 5808 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5809 ctl_set_invalid_field(ctsio, 5810 /*sks_valid*/ 1, 5811 /*command*/ 1, 5812 /*field*/ 6, 5813 /*bit_valid*/ 0, 5814 /*bit*/ 0); 5815 ctl_done((union ctl_io *)ctsio); 5816 return (CTL_RETVAL_COMPLETE); 5817 } 5818 5819 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5820 descr[0] = 0; 5821 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5822 ctsio->kern_data_ptr = descr; 5823 len = min(len, sizeof(descr)); 5824 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5825 ctsio->kern_data_ptr = echo_descr; 5826 len = min(len, sizeof(echo_descr)); 5827 } else 5828 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5829 ctsio->kern_data_len = len; 5830 ctsio->kern_total_len = len; 5831 ctsio->kern_data_resid = 0; 5832 ctsio->kern_rel_offset = 0; 5833 ctsio->kern_sg_entries = 0; 5834 ctsio->be_move_done = ctl_config_move_done; 5835 ctl_datamove((union ctl_io *)ctsio); 5836 5837 return (CTL_RETVAL_COMPLETE); 5838} 5839 5840int 5841ctl_write_buffer(struct ctl_scsiio *ctsio) 5842{ 5843 struct scsi_write_buffer *cdb; 5844 struct ctl_lun *lun; 5845 int buffer_offset, len; 5846 5847 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5848 5849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5850 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5851 5852 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5853 ctl_set_invalid_field(ctsio, 5854 /*sks_valid*/ 1, 5855 /*command*/ 1, 5856 /*field*/ 1, 5857 /*bit_valid*/ 1, 5858 /*bit*/ 4); 5859 ctl_done((union ctl_io *)ctsio); 5860 return (CTL_RETVAL_COMPLETE); 5861 } 5862 5863 len = scsi_3btoul(cdb->length); 5864 buffer_offset = scsi_3btoul(cdb->offset); 5865 5866 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5867 ctl_set_invalid_field(ctsio, 5868 /*sks_valid*/ 1, 5869 /*command*/ 1, 5870 /*field*/ 6, 5871 /*bit_valid*/ 0, 5872 /*bit*/ 0); 5873 ctl_done((union ctl_io *)ctsio); 5874 return (CTL_RETVAL_COMPLETE); 5875 } 5876 5877 /* 5878 * If we've got a kernel request that hasn't been malloced yet, 5879 * malloc it and tell the caller the data buffer is here. 5880 */ 5881 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5882 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5883 ctsio->kern_data_len = len; 5884 ctsio->kern_total_len = len; 5885 ctsio->kern_data_resid = 0; 5886 ctsio->kern_rel_offset = 0; 5887 ctsio->kern_sg_entries = 0; 5888 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5889 ctsio->be_move_done = ctl_config_move_done; 5890 ctl_datamove((union ctl_io *)ctsio); 5891 5892 return (CTL_RETVAL_COMPLETE); 5893 } 5894 5895 ctl_done((union ctl_io *)ctsio); 5896 5897 return (CTL_RETVAL_COMPLETE); 5898} 5899 5900int 5901ctl_write_same(struct ctl_scsiio *ctsio) 5902{ 5903 struct ctl_lun *lun; 5904 struct ctl_lba_len_flags *lbalen; 5905 uint64_t lba; 5906 uint32_t num_blocks; 5907 int len, retval; 5908 uint8_t byte2; 5909 5910 retval = CTL_RETVAL_COMPLETE; 5911 5912 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5913 5914 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5915 5916 switch (ctsio->cdb[0]) { 5917 case WRITE_SAME_10: { 5918 struct scsi_write_same_10 *cdb; 5919 5920 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5921 5922 lba = scsi_4btoul(cdb->addr); 5923 num_blocks = scsi_2btoul(cdb->length); 5924 byte2 = cdb->byte2; 5925 break; 5926 } 5927 case WRITE_SAME_16: { 5928 struct scsi_write_same_16 *cdb; 5929 5930 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5931 5932 lba = scsi_8btou64(cdb->addr); 5933 num_blocks = scsi_4btoul(cdb->length); 5934 byte2 = cdb->byte2; 5935 break; 5936 } 5937 default: 5938 /* 5939 * We got a command we don't support. This shouldn't 5940 * happen, commands should be filtered out above us. 5941 */ 5942 ctl_set_invalid_opcode(ctsio); 5943 ctl_done((union ctl_io *)ctsio); 5944 5945 return (CTL_RETVAL_COMPLETE); 5946 break; /* NOTREACHED */ 5947 } 5948 5949 /* 5950 * The first check is to make sure we're in bounds, the second 5951 * check is to catch wrap-around problems. If the lba + num blocks 5952 * is less than the lba, then we've wrapped around and the block 5953 * range is invalid anyway. 5954 */ 5955 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5956 || ((lba + num_blocks) < lba)) { 5957 ctl_set_lba_out_of_range(ctsio); 5958 ctl_done((union ctl_io *)ctsio); 5959 return (CTL_RETVAL_COMPLETE); 5960 } 5961 5962 /* Zero number of blocks means "to the last logical block" */ 5963 if (num_blocks == 0) { 5964 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5965 ctl_set_invalid_field(ctsio, 5966 /*sks_valid*/ 0, 5967 /*command*/ 1, 5968 /*field*/ 0, 5969 /*bit_valid*/ 0, 5970 /*bit*/ 0); 5971 ctl_done((union ctl_io *)ctsio); 5972 return (CTL_RETVAL_COMPLETE); 5973 } 5974 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5975 } 5976 5977 len = lun->be_lun->blocksize; 5978 5979 /* 5980 * If we've got a kernel request that hasn't been malloced yet, 5981 * malloc it and tell the caller the data buffer is here. 5982 */ 5983 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5984 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5985 ctsio->kern_data_len = len; 5986 ctsio->kern_total_len = len; 5987 ctsio->kern_data_resid = 0; 5988 ctsio->kern_rel_offset = 0; 5989 ctsio->kern_sg_entries = 0; 5990 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5991 ctsio->be_move_done = ctl_config_move_done; 5992 ctl_datamove((union ctl_io *)ctsio); 5993 5994 return (CTL_RETVAL_COMPLETE); 5995 } 5996 5997 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5998 lbalen->lba = lba; 5999 lbalen->len = num_blocks; 6000 lbalen->flags = byte2; 6001 retval = lun->backend->config_write((union ctl_io *)ctsio); 6002 6003 return (retval); 6004} 6005 6006int 6007ctl_unmap(struct ctl_scsiio *ctsio) 6008{ 6009 struct ctl_lun *lun; 6010 struct scsi_unmap *cdb; 6011 struct ctl_ptr_len_flags *ptrlen; 6012 struct scsi_unmap_header *hdr; 6013 struct scsi_unmap_desc *buf, *end; 6014 uint64_t lba; 6015 uint32_t num_blocks; 6016 int len, retval; 6017 uint8_t byte2; 6018 6019 retval = CTL_RETVAL_COMPLETE; 6020 6021 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6022 6023 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6024 cdb = (struct scsi_unmap *)ctsio->cdb; 6025 6026 len = scsi_2btoul(cdb->length); 6027 byte2 = cdb->byte2; 6028 6029 /* 6030 * If we've got a kernel request that hasn't been malloced yet, 6031 * malloc it and tell the caller the data buffer is here. 6032 */ 6033 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6034 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6035 ctsio->kern_data_len = len; 6036 ctsio->kern_total_len = len; 6037 ctsio->kern_data_resid = 0; 6038 ctsio->kern_rel_offset = 0; 6039 ctsio->kern_sg_entries = 0; 6040 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6041 ctsio->be_move_done = ctl_config_move_done; 6042 ctl_datamove((union ctl_io *)ctsio); 6043 6044 return (CTL_RETVAL_COMPLETE); 6045 } 6046 6047 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6048 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6049 if (len < sizeof (*hdr) || 6050 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6051 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6052 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6053 ctl_set_invalid_field(ctsio, 6054 /*sks_valid*/ 0, 6055 /*command*/ 0, 6056 /*field*/ 0, 6057 /*bit_valid*/ 0, 6058 /*bit*/ 0); 6059 ctl_done((union ctl_io *)ctsio); 6060 return (CTL_RETVAL_COMPLETE); 6061 } 6062 len = scsi_2btoul(hdr->desc_length); 6063 buf = (struct scsi_unmap_desc *)(hdr + 1); 6064 end = buf + len / sizeof(*buf); 6065 6066 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6067 ptrlen->ptr = (void *)buf; 6068 ptrlen->len = len; 6069 ptrlen->flags = byte2; 6070 6071 for (; buf < end; buf++) { 6072 lba = scsi_8btou64(buf->lba); 6073 num_blocks = scsi_4btoul(buf->length); 6074 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6075 || ((lba + num_blocks) < lba)) { 6076 ctl_set_lba_out_of_range(ctsio); 6077 ctl_done((union ctl_io *)ctsio); 6078 return (CTL_RETVAL_COMPLETE); 6079 } 6080 } 6081 6082 retval = lun->backend->config_write((union ctl_io *)ctsio); 6083 6084 return (retval); 6085} 6086 6087/* 6088 * Note that this function currently doesn't actually do anything inside 6089 * CTL to enforce things if the DQue bit is turned on. 6090 * 6091 * Also note that this function can't be used in the default case, because 6092 * the DQue bit isn't set in the changeable mask for the control mode page 6093 * anyway. This is just here as an example for how to implement a page 6094 * handler, and a placeholder in case we want to allow the user to turn 6095 * tagged queueing on and off. 6096 * 6097 * The D_SENSE bit handling is functional, however, and will turn 6098 * descriptor sense on and off for a given LUN. 6099 */ 6100int 6101ctl_control_page_handler(struct ctl_scsiio *ctsio, 6102 struct ctl_page_index *page_index, uint8_t *page_ptr) 6103{ 6104 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6105 struct ctl_lun *lun; 6106 struct ctl_softc *softc; 6107 int set_ua; 6108 uint32_t initidx; 6109 6110 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6111 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6112 set_ua = 0; 6113 6114 user_cp = (struct scsi_control_page *)page_ptr; 6115 current_cp = (struct scsi_control_page *) 6116 (page_index->page_data + (page_index->page_len * 6117 CTL_PAGE_CURRENT)); 6118 saved_cp = (struct scsi_control_page *) 6119 (page_index->page_data + (page_index->page_len * 6120 CTL_PAGE_SAVED)); 6121 6122 softc = control_softc; 6123 6124 mtx_lock(&lun->lun_lock); 6125 if (((current_cp->rlec & SCP_DSENSE) == 0) 6126 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6127 /* 6128 * Descriptor sense is currently turned off and the user 6129 * wants to turn it on. 6130 */ 6131 current_cp->rlec |= SCP_DSENSE; 6132 saved_cp->rlec |= SCP_DSENSE; 6133 lun->flags |= CTL_LUN_SENSE_DESC; 6134 set_ua = 1; 6135 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6136 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6137 /* 6138 * Descriptor sense is currently turned on, and the user 6139 * wants to turn it off. 6140 */ 6141 current_cp->rlec &= ~SCP_DSENSE; 6142 saved_cp->rlec &= ~SCP_DSENSE; 6143 lun->flags &= ~CTL_LUN_SENSE_DESC; 6144 set_ua = 1; 6145 } 6146 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6147 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6148#ifdef NEEDTOPORT 6149 csevent_log(CSC_CTL | CSC_SHELF_SW | 6150 CTL_UNTAG_TO_UNTAG, 6151 csevent_LogType_Trace, 6152 csevent_Severity_Information, 6153 csevent_AlertLevel_Green, 6154 csevent_FRU_Firmware, 6155 csevent_FRU_Unknown, 6156 "Received untagged to untagged transition"); 6157#endif /* NEEDTOPORT */ 6158 } else { 6159#ifdef NEEDTOPORT 6160 csevent_log(CSC_CTL | CSC_SHELF_SW | 6161 CTL_UNTAG_TO_TAG, 6162 csevent_LogType_ConfigChange, 6163 csevent_Severity_Information, 6164 csevent_AlertLevel_Green, 6165 csevent_FRU_Firmware, 6166 csevent_FRU_Unknown, 6167 "Received untagged to tagged " 6168 "queueing transition"); 6169#endif /* NEEDTOPORT */ 6170 6171 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6172 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6173 set_ua = 1; 6174 } 6175 } else { 6176 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6177#ifdef NEEDTOPORT 6178 csevent_log(CSC_CTL | CSC_SHELF_SW | 6179 CTL_TAG_TO_UNTAG, 6180 csevent_LogType_ConfigChange, 6181 csevent_Severity_Warning, 6182 csevent_AlertLevel_Yellow, 6183 csevent_FRU_Firmware, 6184 csevent_FRU_Unknown, 6185 "Received tagged queueing to untagged " 6186 "transition"); 6187#endif /* NEEDTOPORT */ 6188 6189 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6190 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6191 set_ua = 1; 6192 } else { 6193#ifdef NEEDTOPORT 6194 csevent_log(CSC_CTL | CSC_SHELF_SW | 6195 CTL_TAG_TO_TAG, 6196 csevent_LogType_Trace, 6197 csevent_Severity_Information, 6198 csevent_AlertLevel_Green, 6199 csevent_FRU_Firmware, 6200 csevent_FRU_Unknown, 6201 "Received tagged queueing to tagged " 6202 "queueing transition"); 6203#endif /* NEEDTOPORT */ 6204 } 6205 } 6206 if (set_ua != 0) { 6207 int i; 6208 /* 6209 * Let other initiators know that the mode 6210 * parameters for this LUN have changed. 6211 */ 6212 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6213 if (i == initidx) 6214 continue; 6215 6216 lun->pending_sense[i].ua_pending |= 6217 CTL_UA_MODE_CHANGE; 6218 } 6219 } 6220 mtx_unlock(&lun->lun_lock); 6221 6222 return (0); 6223} 6224 6225int 6226ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6227 struct ctl_page_index *page_index, uint8_t *page_ptr) 6228{ 6229 return (0); 6230} 6231 6232int 6233ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6234 struct ctl_page_index *page_index, int pc) 6235{ 6236 struct copan_power_subpage *page; 6237 6238 page = (struct copan_power_subpage *)page_index->page_data + 6239 (page_index->page_len * pc); 6240 6241 switch (pc) { 6242 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6243 /* 6244 * We don't update the changable bits for this page. 6245 */ 6246 break; 6247 case SMS_PAGE_CTRL_CURRENT >> 6: 6248 case SMS_PAGE_CTRL_DEFAULT >> 6: 6249 case SMS_PAGE_CTRL_SAVED >> 6: 6250#ifdef NEEDTOPORT 6251 ctl_update_power_subpage(page); 6252#endif 6253 break; 6254 default: 6255#ifdef NEEDTOPORT 6256 EPRINT(0, "Invalid PC %d!!", pc); 6257#endif 6258 break; 6259 } 6260 return (0); 6261} 6262 6263 6264int 6265ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6266 struct ctl_page_index *page_index, uint8_t *page_ptr) 6267{ 6268 struct copan_aps_subpage *user_sp; 6269 struct copan_aps_subpage *current_sp; 6270 union ctl_modepage_info *modepage_info; 6271 struct ctl_softc *softc; 6272 struct ctl_lun *lun; 6273 int retval; 6274 6275 retval = CTL_RETVAL_COMPLETE; 6276 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6277 (page_index->page_len * CTL_PAGE_CURRENT)); 6278 softc = control_softc; 6279 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6280 6281 user_sp = (struct copan_aps_subpage *)page_ptr; 6282 6283 modepage_info = (union ctl_modepage_info *) 6284 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6285 6286 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6287 modepage_info->header.subpage = page_index->subpage; 6288 modepage_info->aps.lock_active = user_sp->lock_active; 6289 6290 mtx_lock(&softc->ctl_lock); 6291 6292 /* 6293 * If there is a request to lock the LUN and another LUN is locked 6294 * this is an error. If the requested LUN is already locked ignore 6295 * the request. If no LUN is locked attempt to lock it. 6296 * if there is a request to unlock the LUN and the LUN is currently 6297 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6298 * if another LUN is locked or no LUN is locked. 6299 */ 6300 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6301 if (softc->aps_locked_lun == lun->lun) { 6302 /* 6303 * This LUN is already locked, so we're done. 6304 */ 6305 retval = CTL_RETVAL_COMPLETE; 6306 } else if (softc->aps_locked_lun == 0) { 6307 /* 6308 * No one has the lock, pass the request to the 6309 * backend. 6310 */ 6311 retval = lun->backend->config_write( 6312 (union ctl_io *)ctsio); 6313 } else { 6314 /* 6315 * Someone else has the lock, throw out the request. 6316 */ 6317 ctl_set_already_locked(ctsio); 6318 free(ctsio->kern_data_ptr, M_CTL); 6319 ctl_done((union ctl_io *)ctsio); 6320 6321 /* 6322 * Set the return value so that ctl_do_mode_select() 6323 * won't try to complete the command. We already 6324 * completed it here. 6325 */ 6326 retval = CTL_RETVAL_ERROR; 6327 } 6328 } else if (softc->aps_locked_lun == lun->lun) { 6329 /* 6330 * This LUN is locked, so pass the unlock request to the 6331 * backend. 6332 */ 6333 retval = lun->backend->config_write((union ctl_io *)ctsio); 6334 } 6335 mtx_unlock(&softc->ctl_lock); 6336 6337 return (retval); 6338} 6339 6340int 6341ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6342 struct ctl_page_index *page_index, 6343 uint8_t *page_ptr) 6344{ 6345 uint8_t *c; 6346 int i; 6347 6348 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6349 ctl_time_io_secs = 6350 (c[0] << 8) | 6351 (c[1] << 0) | 6352 0; 6353 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6354 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6355 printf("page data:"); 6356 for (i=0; i<8; i++) 6357 printf(" %.2x",page_ptr[i]); 6358 printf("\n"); 6359 return (0); 6360} 6361 6362int 6363ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6364 struct ctl_page_index *page_index, 6365 int pc) 6366{ 6367 struct copan_debugconf_subpage *page; 6368 6369 page = (struct copan_debugconf_subpage *)page_index->page_data + 6370 (page_index->page_len * pc); 6371 6372 switch (pc) { 6373 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6374 case SMS_PAGE_CTRL_DEFAULT >> 6: 6375 case SMS_PAGE_CTRL_SAVED >> 6: 6376 /* 6377 * We don't update the changable or default bits for this page. 6378 */ 6379 break; 6380 case SMS_PAGE_CTRL_CURRENT >> 6: 6381 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6382 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6383 break; 6384 default: 6385#ifdef NEEDTOPORT 6386 EPRINT(0, "Invalid PC %d!!", pc); 6387#endif /* NEEDTOPORT */ 6388 break; 6389 } 6390 return (0); 6391} 6392 6393 6394static int 6395ctl_do_mode_select(union ctl_io *io) 6396{ 6397 struct scsi_mode_page_header *page_header; 6398 struct ctl_page_index *page_index; 6399 struct ctl_scsiio *ctsio; 6400 int control_dev, page_len; 6401 int page_len_offset, page_len_size; 6402 union ctl_modepage_info *modepage_info; 6403 struct ctl_lun *lun; 6404 int *len_left, *len_used; 6405 int retval, i; 6406 6407 ctsio = &io->scsiio; 6408 page_index = NULL; 6409 page_len = 0; 6410 retval = CTL_RETVAL_COMPLETE; 6411 6412 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6413 6414 if (lun->be_lun->lun_type != T_DIRECT) 6415 control_dev = 1; 6416 else 6417 control_dev = 0; 6418 6419 modepage_info = (union ctl_modepage_info *) 6420 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6421 len_left = &modepage_info->header.len_left; 6422 len_used = &modepage_info->header.len_used; 6423 6424do_next_page: 6425 6426 page_header = (struct scsi_mode_page_header *) 6427 (ctsio->kern_data_ptr + *len_used); 6428 6429 if (*len_left == 0) { 6430 free(ctsio->kern_data_ptr, M_CTL); 6431 ctl_set_success(ctsio); 6432 ctl_done((union ctl_io *)ctsio); 6433 return (CTL_RETVAL_COMPLETE); 6434 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6435 6436 free(ctsio->kern_data_ptr, M_CTL); 6437 ctl_set_param_len_error(ctsio); 6438 ctl_done((union ctl_io *)ctsio); 6439 return (CTL_RETVAL_COMPLETE); 6440 6441 } else if ((page_header->page_code & SMPH_SPF) 6442 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6443 6444 free(ctsio->kern_data_ptr, M_CTL); 6445 ctl_set_param_len_error(ctsio); 6446 ctl_done((union ctl_io *)ctsio); 6447 return (CTL_RETVAL_COMPLETE); 6448 } 6449 6450 6451 /* 6452 * XXX KDM should we do something with the block descriptor? 6453 */ 6454 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6455 6456 if ((control_dev != 0) 6457 && (lun->mode_pages.index[i].page_flags & 6458 CTL_PAGE_FLAG_DISK_ONLY)) 6459 continue; 6460 6461 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6462 (page_header->page_code & SMPH_PC_MASK)) 6463 continue; 6464 6465 /* 6466 * If neither page has a subpage code, then we've got a 6467 * match. 6468 */ 6469 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6470 && ((page_header->page_code & SMPH_SPF) == 0)) { 6471 page_index = &lun->mode_pages.index[i]; 6472 page_len = page_header->page_length; 6473 break; 6474 } 6475 6476 /* 6477 * If both pages have subpages, then the subpage numbers 6478 * have to match. 6479 */ 6480 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6481 && (page_header->page_code & SMPH_SPF)) { 6482 struct scsi_mode_page_header_sp *sph; 6483 6484 sph = (struct scsi_mode_page_header_sp *)page_header; 6485 6486 if (lun->mode_pages.index[i].subpage == 6487 sph->subpage) { 6488 page_index = &lun->mode_pages.index[i]; 6489 page_len = scsi_2btoul(sph->page_length); 6490 break; 6491 } 6492 } 6493 } 6494 6495 /* 6496 * If we couldn't find the page, or if we don't have a mode select 6497 * handler for it, send back an error to the user. 6498 */ 6499 if ((page_index == NULL) 6500 || (page_index->select_handler == NULL)) { 6501 ctl_set_invalid_field(ctsio, 6502 /*sks_valid*/ 1, 6503 /*command*/ 0, 6504 /*field*/ *len_used, 6505 /*bit_valid*/ 0, 6506 /*bit*/ 0); 6507 free(ctsio->kern_data_ptr, M_CTL); 6508 ctl_done((union ctl_io *)ctsio); 6509 return (CTL_RETVAL_COMPLETE); 6510 } 6511 6512 if (page_index->page_code & SMPH_SPF) { 6513 page_len_offset = 2; 6514 page_len_size = 2; 6515 } else { 6516 page_len_size = 1; 6517 page_len_offset = 1; 6518 } 6519 6520 /* 6521 * If the length the initiator gives us isn't the one we specify in 6522 * the mode page header, or if they didn't specify enough data in 6523 * the CDB to avoid truncating this page, kick out the request. 6524 */ 6525 if ((page_len != (page_index->page_len - page_len_offset - 6526 page_len_size)) 6527 || (*len_left < page_index->page_len)) { 6528 6529 6530 ctl_set_invalid_field(ctsio, 6531 /*sks_valid*/ 1, 6532 /*command*/ 0, 6533 /*field*/ *len_used + page_len_offset, 6534 /*bit_valid*/ 0, 6535 /*bit*/ 0); 6536 free(ctsio->kern_data_ptr, M_CTL); 6537 ctl_done((union ctl_io *)ctsio); 6538 return (CTL_RETVAL_COMPLETE); 6539 } 6540 6541 /* 6542 * Run through the mode page, checking to make sure that the bits 6543 * the user changed are actually legal for him to change. 6544 */ 6545 for (i = 0; i < page_index->page_len; i++) { 6546 uint8_t *user_byte, *change_mask, *current_byte; 6547 int bad_bit; 6548 int j; 6549 6550 user_byte = (uint8_t *)page_header + i; 6551 change_mask = page_index->page_data + 6552 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6553 current_byte = page_index->page_data + 6554 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6555 6556 /* 6557 * Check to see whether the user set any bits in this byte 6558 * that he is not allowed to set. 6559 */ 6560 if ((*user_byte & ~(*change_mask)) == 6561 (*current_byte & ~(*change_mask))) 6562 continue; 6563 6564 /* 6565 * Go through bit by bit to determine which one is illegal. 6566 */ 6567 bad_bit = 0; 6568 for (j = 7; j >= 0; j--) { 6569 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6570 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6571 bad_bit = i; 6572 break; 6573 } 6574 } 6575 ctl_set_invalid_field(ctsio, 6576 /*sks_valid*/ 1, 6577 /*command*/ 0, 6578 /*field*/ *len_used + i, 6579 /*bit_valid*/ 1, 6580 /*bit*/ bad_bit); 6581 free(ctsio->kern_data_ptr, M_CTL); 6582 ctl_done((union ctl_io *)ctsio); 6583 return (CTL_RETVAL_COMPLETE); 6584 } 6585 6586 /* 6587 * Decrement these before we call the page handler, since we may 6588 * end up getting called back one way or another before the handler 6589 * returns to this context. 6590 */ 6591 *len_left -= page_index->page_len; 6592 *len_used += page_index->page_len; 6593 6594 retval = page_index->select_handler(ctsio, page_index, 6595 (uint8_t *)page_header); 6596 6597 /* 6598 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6599 * wait until this queued command completes to finish processing 6600 * the mode page. If it returns anything other than 6601 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6602 * already set the sense information, freed the data pointer, and 6603 * completed the io for us. 6604 */ 6605 if (retval != CTL_RETVAL_COMPLETE) 6606 goto bailout_no_done; 6607 6608 /* 6609 * If the initiator sent us more than one page, parse the next one. 6610 */ 6611 if (*len_left > 0) 6612 goto do_next_page; 6613 6614 ctl_set_success(ctsio); 6615 free(ctsio->kern_data_ptr, M_CTL); 6616 ctl_done((union ctl_io *)ctsio); 6617 6618bailout_no_done: 6619 6620 return (CTL_RETVAL_COMPLETE); 6621 6622} 6623 6624int 6625ctl_mode_select(struct ctl_scsiio *ctsio) 6626{ 6627 int param_len, pf, sp; 6628 int header_size, bd_len; 6629 int len_left, len_used; 6630 struct ctl_page_index *page_index; 6631 struct ctl_lun *lun; 6632 int control_dev, page_len; 6633 union ctl_modepage_info *modepage_info; 6634 int retval; 6635 6636 pf = 0; 6637 sp = 0; 6638 page_len = 0; 6639 len_used = 0; 6640 len_left = 0; 6641 retval = 0; 6642 bd_len = 0; 6643 page_index = NULL; 6644 6645 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6646 6647 if (lun->be_lun->lun_type != T_DIRECT) 6648 control_dev = 1; 6649 else 6650 control_dev = 0; 6651 6652 switch (ctsio->cdb[0]) { 6653 case MODE_SELECT_6: { 6654 struct scsi_mode_select_6 *cdb; 6655 6656 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6657 6658 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6659 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6660 6661 param_len = cdb->length; 6662 header_size = sizeof(struct scsi_mode_header_6); 6663 break; 6664 } 6665 case MODE_SELECT_10: { 6666 struct scsi_mode_select_10 *cdb; 6667 6668 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6669 6670 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6671 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6672 6673 param_len = scsi_2btoul(cdb->length); 6674 header_size = sizeof(struct scsi_mode_header_10); 6675 break; 6676 } 6677 default: 6678 ctl_set_invalid_opcode(ctsio); 6679 ctl_done((union ctl_io *)ctsio); 6680 return (CTL_RETVAL_COMPLETE); 6681 break; /* NOTREACHED */ 6682 } 6683 6684 /* 6685 * From SPC-3: 6686 * "A parameter list length of zero indicates that the Data-Out Buffer 6687 * shall be empty. This condition shall not be considered as an error." 6688 */ 6689 if (param_len == 0) { 6690 ctl_set_success(ctsio); 6691 ctl_done((union ctl_io *)ctsio); 6692 return (CTL_RETVAL_COMPLETE); 6693 } 6694 6695 /* 6696 * Since we'll hit this the first time through, prior to 6697 * allocation, we don't need to free a data buffer here. 6698 */ 6699 if (param_len < header_size) { 6700 ctl_set_param_len_error(ctsio); 6701 ctl_done((union ctl_io *)ctsio); 6702 return (CTL_RETVAL_COMPLETE); 6703 } 6704 6705 /* 6706 * Allocate the data buffer and grab the user's data. In theory, 6707 * we shouldn't have to sanity check the parameter list length here 6708 * because the maximum size is 64K. We should be able to malloc 6709 * that much without too many problems. 6710 */ 6711 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6712 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6713 ctsio->kern_data_len = param_len; 6714 ctsio->kern_total_len = param_len; 6715 ctsio->kern_data_resid = 0; 6716 ctsio->kern_rel_offset = 0; 6717 ctsio->kern_sg_entries = 0; 6718 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6719 ctsio->be_move_done = ctl_config_move_done; 6720 ctl_datamove((union ctl_io *)ctsio); 6721 6722 return (CTL_RETVAL_COMPLETE); 6723 } 6724 6725 switch (ctsio->cdb[0]) { 6726 case MODE_SELECT_6: { 6727 struct scsi_mode_header_6 *mh6; 6728 6729 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6730 bd_len = mh6->blk_desc_len; 6731 break; 6732 } 6733 case MODE_SELECT_10: { 6734 struct scsi_mode_header_10 *mh10; 6735 6736 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6737 bd_len = scsi_2btoul(mh10->blk_desc_len); 6738 break; 6739 } 6740 default: 6741 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6742 break; 6743 } 6744 6745 if (param_len < (header_size + bd_len)) { 6746 free(ctsio->kern_data_ptr, M_CTL); 6747 ctl_set_param_len_error(ctsio); 6748 ctl_done((union ctl_io *)ctsio); 6749 return (CTL_RETVAL_COMPLETE); 6750 } 6751 6752 /* 6753 * Set the IO_CONT flag, so that if this I/O gets passed to 6754 * ctl_config_write_done(), it'll get passed back to 6755 * ctl_do_mode_select() for further processing, or completion if 6756 * we're all done. 6757 */ 6758 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6759 ctsio->io_cont = ctl_do_mode_select; 6760 6761 modepage_info = (union ctl_modepage_info *) 6762 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6763 6764 memset(modepage_info, 0, sizeof(*modepage_info)); 6765 6766 len_left = param_len - header_size - bd_len; 6767 len_used = header_size + bd_len; 6768 6769 modepage_info->header.len_left = len_left; 6770 modepage_info->header.len_used = len_used; 6771 6772 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6773} 6774 6775int 6776ctl_mode_sense(struct ctl_scsiio *ctsio) 6777{ 6778 struct ctl_lun *lun; 6779 int pc, page_code, dbd, llba, subpage; 6780 int alloc_len, page_len, header_len, total_len; 6781 struct scsi_mode_block_descr *block_desc; 6782 struct ctl_page_index *page_index; 6783 int control_dev; 6784 6785 dbd = 0; 6786 llba = 0; 6787 block_desc = NULL; 6788 page_index = NULL; 6789 6790 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6791 6792 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6793 6794 if (lun->be_lun->lun_type != T_DIRECT) 6795 control_dev = 1; 6796 else 6797 control_dev = 0; 6798 6799 if (lun->flags & CTL_LUN_PR_RESERVED) { 6800 uint32_t residx; 6801 6802 /* 6803 * XXX KDM need a lock here. 6804 */ 6805 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6806 if ((lun->res_type == SPR_TYPE_EX_AC 6807 && residx != lun->pr_res_idx) 6808 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6809 || lun->res_type == SPR_TYPE_EX_AC_AR) 6810 && !lun->per_res[residx].registered)) { 6811 ctl_set_reservation_conflict(ctsio); 6812 ctl_done((union ctl_io *)ctsio); 6813 return (CTL_RETVAL_COMPLETE); 6814 } 6815 } 6816 6817 switch (ctsio->cdb[0]) { 6818 case MODE_SENSE_6: { 6819 struct scsi_mode_sense_6 *cdb; 6820 6821 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6822 6823 header_len = sizeof(struct scsi_mode_hdr_6); 6824 if (cdb->byte2 & SMS_DBD) 6825 dbd = 1; 6826 else 6827 header_len += sizeof(struct scsi_mode_block_descr); 6828 6829 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6830 page_code = cdb->page & SMS_PAGE_CODE; 6831 subpage = cdb->subpage; 6832 alloc_len = cdb->length; 6833 break; 6834 } 6835 case MODE_SENSE_10: { 6836 struct scsi_mode_sense_10 *cdb; 6837 6838 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6839 6840 header_len = sizeof(struct scsi_mode_hdr_10); 6841 6842 if (cdb->byte2 & SMS_DBD) 6843 dbd = 1; 6844 else 6845 header_len += sizeof(struct scsi_mode_block_descr); 6846 if (cdb->byte2 & SMS10_LLBAA) 6847 llba = 1; 6848 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6849 page_code = cdb->page & SMS_PAGE_CODE; 6850 subpage = cdb->subpage; 6851 alloc_len = scsi_2btoul(cdb->length); 6852 break; 6853 } 6854 default: 6855 ctl_set_invalid_opcode(ctsio); 6856 ctl_done((union ctl_io *)ctsio); 6857 return (CTL_RETVAL_COMPLETE); 6858 break; /* NOTREACHED */ 6859 } 6860 6861 /* 6862 * We have to make a first pass through to calculate the size of 6863 * the pages that match the user's query. Then we allocate enough 6864 * memory to hold it, and actually copy the data into the buffer. 6865 */ 6866 switch (page_code) { 6867 case SMS_ALL_PAGES_PAGE: { 6868 int i; 6869 6870 page_len = 0; 6871 6872 /* 6873 * At the moment, values other than 0 and 0xff here are 6874 * reserved according to SPC-3. 6875 */ 6876 if ((subpage != SMS_SUBPAGE_PAGE_0) 6877 && (subpage != SMS_SUBPAGE_ALL)) { 6878 ctl_set_invalid_field(ctsio, 6879 /*sks_valid*/ 1, 6880 /*command*/ 1, 6881 /*field*/ 3, 6882 /*bit_valid*/ 0, 6883 /*bit*/ 0); 6884 ctl_done((union ctl_io *)ctsio); 6885 return (CTL_RETVAL_COMPLETE); 6886 } 6887 6888 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6889 if ((control_dev != 0) 6890 && (lun->mode_pages.index[i].page_flags & 6891 CTL_PAGE_FLAG_DISK_ONLY)) 6892 continue; 6893 6894 /* 6895 * We don't use this subpage if the user didn't 6896 * request all subpages. 6897 */ 6898 if ((lun->mode_pages.index[i].subpage != 0) 6899 && (subpage == SMS_SUBPAGE_PAGE_0)) 6900 continue; 6901 6902#if 0 6903 printf("found page %#x len %d\n", 6904 lun->mode_pages.index[i].page_code & 6905 SMPH_PC_MASK, 6906 lun->mode_pages.index[i].page_len); 6907#endif 6908 page_len += lun->mode_pages.index[i].page_len; 6909 } 6910 break; 6911 } 6912 default: { 6913 int i; 6914 6915 page_len = 0; 6916 6917 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6918 /* Look for the right page code */ 6919 if ((lun->mode_pages.index[i].page_code & 6920 SMPH_PC_MASK) != page_code) 6921 continue; 6922 6923 /* Look for the right subpage or the subpage wildcard*/ 6924 if ((lun->mode_pages.index[i].subpage != subpage) 6925 && (subpage != SMS_SUBPAGE_ALL)) 6926 continue; 6927 6928 /* Make sure the page is supported for this dev type */ 6929 if ((control_dev != 0) 6930 && (lun->mode_pages.index[i].page_flags & 6931 CTL_PAGE_FLAG_DISK_ONLY)) 6932 continue; 6933 6934#if 0 6935 printf("found page %#x len %d\n", 6936 lun->mode_pages.index[i].page_code & 6937 SMPH_PC_MASK, 6938 lun->mode_pages.index[i].page_len); 6939#endif 6940 6941 page_len += lun->mode_pages.index[i].page_len; 6942 } 6943 6944 if (page_len == 0) { 6945 ctl_set_invalid_field(ctsio, 6946 /*sks_valid*/ 1, 6947 /*command*/ 1, 6948 /*field*/ 2, 6949 /*bit_valid*/ 1, 6950 /*bit*/ 5); 6951 ctl_done((union ctl_io *)ctsio); 6952 return (CTL_RETVAL_COMPLETE); 6953 } 6954 break; 6955 } 6956 } 6957 6958 total_len = header_len + page_len; 6959#if 0 6960 printf("header_len = %d, page_len = %d, total_len = %d\n", 6961 header_len, page_len, total_len); 6962#endif 6963 6964 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6965 ctsio->kern_sg_entries = 0; 6966 ctsio->kern_data_resid = 0; 6967 ctsio->kern_rel_offset = 0; 6968 if (total_len < alloc_len) { 6969 ctsio->residual = alloc_len - total_len; 6970 ctsio->kern_data_len = total_len; 6971 ctsio->kern_total_len = total_len; 6972 } else { 6973 ctsio->residual = 0; 6974 ctsio->kern_data_len = alloc_len; 6975 ctsio->kern_total_len = alloc_len; 6976 } 6977 6978 switch (ctsio->cdb[0]) { 6979 case MODE_SENSE_6: { 6980 struct scsi_mode_hdr_6 *header; 6981 6982 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6983 6984 header->datalen = ctl_min(total_len - 1, 254); 6985 6986 if (dbd) 6987 header->block_descr_len = 0; 6988 else 6989 header->block_descr_len = 6990 sizeof(struct scsi_mode_block_descr); 6991 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6992 break; 6993 } 6994 case MODE_SENSE_10: { 6995 struct scsi_mode_hdr_10 *header; 6996 int datalen; 6997 6998 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6999 7000 datalen = ctl_min(total_len - 2, 65533); 7001 scsi_ulto2b(datalen, header->datalen); 7002 if (dbd) 7003 scsi_ulto2b(0, header->block_descr_len); 7004 else 7005 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7006 header->block_descr_len); 7007 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7008 break; 7009 } 7010 default: 7011 panic("invalid CDB type %#x", ctsio->cdb[0]); 7012 break; /* NOTREACHED */ 7013 } 7014 7015 /* 7016 * If we've got a disk, use its blocksize in the block 7017 * descriptor. Otherwise, just set it to 0. 7018 */ 7019 if (dbd == 0) { 7020 if (control_dev != 0) 7021 scsi_ulto3b(lun->be_lun->blocksize, 7022 block_desc->block_len); 7023 else 7024 scsi_ulto3b(0, block_desc->block_len); 7025 } 7026 7027 switch (page_code) { 7028 case SMS_ALL_PAGES_PAGE: { 7029 int i, data_used; 7030 7031 data_used = header_len; 7032 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7033 struct ctl_page_index *page_index; 7034 7035 page_index = &lun->mode_pages.index[i]; 7036 7037 if ((control_dev != 0) 7038 && (page_index->page_flags & 7039 CTL_PAGE_FLAG_DISK_ONLY)) 7040 continue; 7041 7042 /* 7043 * We don't use this subpage if the user didn't 7044 * request all subpages. We already checked (above) 7045 * to make sure the user only specified a subpage 7046 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7047 */ 7048 if ((page_index->subpage != 0) 7049 && (subpage == SMS_SUBPAGE_PAGE_0)) 7050 continue; 7051 7052 /* 7053 * Call the handler, if it exists, to update the 7054 * page to the latest values. 7055 */ 7056 if (page_index->sense_handler != NULL) 7057 page_index->sense_handler(ctsio, page_index,pc); 7058 7059 memcpy(ctsio->kern_data_ptr + data_used, 7060 page_index->page_data + 7061 (page_index->page_len * pc), 7062 page_index->page_len); 7063 data_used += page_index->page_len; 7064 } 7065 break; 7066 } 7067 default: { 7068 int i, data_used; 7069 7070 data_used = header_len; 7071 7072 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7073 struct ctl_page_index *page_index; 7074 7075 page_index = &lun->mode_pages.index[i]; 7076 7077 /* Look for the right page code */ 7078 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7079 continue; 7080 7081 /* Look for the right subpage or the subpage wildcard*/ 7082 if ((page_index->subpage != subpage) 7083 && (subpage != SMS_SUBPAGE_ALL)) 7084 continue; 7085 7086 /* Make sure the page is supported for this dev type */ 7087 if ((control_dev != 0) 7088 && (page_index->page_flags & 7089 CTL_PAGE_FLAG_DISK_ONLY)) 7090 continue; 7091 7092 /* 7093 * Call the handler, if it exists, to update the 7094 * page to the latest values. 7095 */ 7096 if (page_index->sense_handler != NULL) 7097 page_index->sense_handler(ctsio, page_index,pc); 7098 7099 memcpy(ctsio->kern_data_ptr + data_used, 7100 page_index->page_data + 7101 (page_index->page_len * pc), 7102 page_index->page_len); 7103 data_used += page_index->page_len; 7104 } 7105 break; 7106 } 7107 } 7108 7109 ctsio->scsi_status = SCSI_STATUS_OK; 7110 7111 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7112 ctsio->be_move_done = ctl_config_move_done; 7113 ctl_datamove((union ctl_io *)ctsio); 7114 7115 return (CTL_RETVAL_COMPLETE); 7116} 7117 7118int 7119ctl_read_capacity(struct ctl_scsiio *ctsio) 7120{ 7121 struct scsi_read_capacity *cdb; 7122 struct scsi_read_capacity_data *data; 7123 struct ctl_lun *lun; 7124 uint32_t lba; 7125 7126 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7127 7128 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7129 7130 lba = scsi_4btoul(cdb->addr); 7131 if (((cdb->pmi & SRC_PMI) == 0) 7132 && (lba != 0)) { 7133 ctl_set_invalid_field(/*ctsio*/ ctsio, 7134 /*sks_valid*/ 1, 7135 /*command*/ 1, 7136 /*field*/ 2, 7137 /*bit_valid*/ 0, 7138 /*bit*/ 0); 7139 ctl_done((union ctl_io *)ctsio); 7140 return (CTL_RETVAL_COMPLETE); 7141 } 7142 7143 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7144 7145 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7146 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7147 ctsio->residual = 0; 7148 ctsio->kern_data_len = sizeof(*data); 7149 ctsio->kern_total_len = sizeof(*data); 7150 ctsio->kern_data_resid = 0; 7151 ctsio->kern_rel_offset = 0; 7152 ctsio->kern_sg_entries = 0; 7153 7154 /* 7155 * If the maximum LBA is greater than 0xfffffffe, the user must 7156 * issue a SERVICE ACTION IN (16) command, with the read capacity 7157 * serivce action set. 7158 */ 7159 if (lun->be_lun->maxlba > 0xfffffffe) 7160 scsi_ulto4b(0xffffffff, data->addr); 7161 else 7162 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7163 7164 /* 7165 * XXX KDM this may not be 512 bytes... 7166 */ 7167 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7168 7169 ctsio->scsi_status = SCSI_STATUS_OK; 7170 7171 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7172 ctsio->be_move_done = ctl_config_move_done; 7173 ctl_datamove((union ctl_io *)ctsio); 7174 7175 return (CTL_RETVAL_COMPLETE); 7176} 7177 7178int 7179ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7180{ 7181 struct scsi_read_capacity_16 *cdb; 7182 struct scsi_read_capacity_data_long *data; 7183 struct ctl_lun *lun; 7184 uint64_t lba; 7185 uint32_t alloc_len; 7186 7187 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7188 7189 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7190 7191 alloc_len = scsi_4btoul(cdb->alloc_len); 7192 lba = scsi_8btou64(cdb->addr); 7193 7194 if ((cdb->reladr & SRC16_PMI) 7195 && (lba != 0)) { 7196 ctl_set_invalid_field(/*ctsio*/ ctsio, 7197 /*sks_valid*/ 1, 7198 /*command*/ 1, 7199 /*field*/ 2, 7200 /*bit_valid*/ 0, 7201 /*bit*/ 0); 7202 ctl_done((union ctl_io *)ctsio); 7203 return (CTL_RETVAL_COMPLETE); 7204 } 7205 7206 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7207 7208 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7209 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7210 7211 if (sizeof(*data) < alloc_len) { 7212 ctsio->residual = alloc_len - sizeof(*data); 7213 ctsio->kern_data_len = sizeof(*data); 7214 ctsio->kern_total_len = sizeof(*data); 7215 } else { 7216 ctsio->residual = 0; 7217 ctsio->kern_data_len = alloc_len; 7218 ctsio->kern_total_len = alloc_len; 7219 } 7220 ctsio->kern_data_resid = 0; 7221 ctsio->kern_rel_offset = 0; 7222 ctsio->kern_sg_entries = 0; 7223 7224 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7225 /* XXX KDM this may not be 512 bytes... */ 7226 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7227 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7228 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7229 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7230 data->lalba_lbp[0] |= SRC16_LBPME; 7231 7232 ctsio->scsi_status = SCSI_STATUS_OK; 7233 7234 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7235 ctsio->be_move_done = ctl_config_move_done; 7236 ctl_datamove((union ctl_io *)ctsio); 7237 7238 return (CTL_RETVAL_COMPLETE); 7239} 7240 7241int 7242ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7243{ 7244 struct scsi_maintenance_in *cdb; 7245 int retval; 7246 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7247 int num_target_port_groups, num_target_ports, single; 7248 struct ctl_lun *lun; 7249 struct ctl_softc *softc; 7250 struct ctl_port *port; 7251 struct scsi_target_group_data *rtg_ptr; 7252 struct scsi_target_group_data_extended *rtg_ext_ptr; 7253 struct scsi_target_port_group_descriptor *tpg_desc; 7254 7255 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7256 7257 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7258 softc = control_softc; 7259 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7260 7261 retval = CTL_RETVAL_COMPLETE; 7262 7263 switch (cdb->byte2 & STG_PDF_MASK) { 7264 case STG_PDF_LENGTH: 7265 ext = 0; 7266 break; 7267 case STG_PDF_EXTENDED: 7268 ext = 1; 7269 break; 7270 default: 7271 ctl_set_invalid_field(/*ctsio*/ ctsio, 7272 /*sks_valid*/ 1, 7273 /*command*/ 1, 7274 /*field*/ 2, 7275 /*bit_valid*/ 1, 7276 /*bit*/ 5); 7277 ctl_done((union ctl_io *)ctsio); 7278 return(retval); 7279 } 7280 7281 single = ctl_is_single; 7282 if (single) 7283 num_target_port_groups = 1; 7284 else 7285 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7286 num_target_ports = 0; 7287 mtx_lock(&softc->ctl_lock); 7288 STAILQ_FOREACH(port, &softc->port_list, links) { 7289 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7290 continue; 7291 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7292 continue; 7293 num_target_ports++; 7294 } 7295 mtx_unlock(&softc->ctl_lock); 7296 7297 if (ext) 7298 total_len = sizeof(struct scsi_target_group_data_extended); 7299 else 7300 total_len = sizeof(struct scsi_target_group_data); 7301 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7302 num_target_port_groups + 7303 sizeof(struct scsi_target_port_descriptor) * 7304 num_target_ports * num_target_port_groups; 7305 7306 alloc_len = scsi_4btoul(cdb->length); 7307 7308 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7309 7310 ctsio->kern_sg_entries = 0; 7311 7312 if (total_len < alloc_len) { 7313 ctsio->residual = alloc_len - total_len; 7314 ctsio->kern_data_len = total_len; 7315 ctsio->kern_total_len = total_len; 7316 } else { 7317 ctsio->residual = 0; 7318 ctsio->kern_data_len = alloc_len; 7319 ctsio->kern_total_len = alloc_len; 7320 } 7321 ctsio->kern_data_resid = 0; 7322 ctsio->kern_rel_offset = 0; 7323 7324 if (ext) { 7325 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7326 ctsio->kern_data_ptr; 7327 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7328 rtg_ext_ptr->format_type = 0x10; 7329 rtg_ext_ptr->implicit_transition_time = 0; 7330 tpg_desc = &rtg_ext_ptr->groups[0]; 7331 } else { 7332 rtg_ptr = (struct scsi_target_group_data *) 7333 ctsio->kern_data_ptr; 7334 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7335 tpg_desc = &rtg_ptr->groups[0]; 7336 } 7337 7338 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7339 mtx_lock(&softc->ctl_lock); 7340 for (g = 0; g < num_target_port_groups; g++) { 7341 if (g == pg) 7342 tpg_desc->pref_state = TPG_PRIMARY | 7343 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7344 else 7345 tpg_desc->pref_state = 7346 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7347 tpg_desc->support = TPG_AO_SUP; 7348 if (!single) 7349 tpg_desc->support |= TPG_AN_SUP; 7350 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7351 tpg_desc->status = TPG_IMPLICIT; 7352 pc = 0; 7353 STAILQ_FOREACH(port, &softc->port_list, links) { 7354 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7355 continue; 7356 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7357 CTL_MAX_LUNS) 7358 continue; 7359 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7360 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7361 relative_target_port_identifier); 7362 pc++; 7363 } 7364 tpg_desc->target_port_count = pc; 7365 tpg_desc = (struct scsi_target_port_group_descriptor *) 7366 &tpg_desc->descriptors[pc]; 7367 } 7368 mtx_unlock(&softc->ctl_lock); 7369 7370 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7371 ctsio->be_move_done = ctl_config_move_done; 7372 7373 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7374 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7375 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7376 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7377 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7378 7379 ctl_datamove((union ctl_io *)ctsio); 7380 return(retval); 7381} 7382 7383int 7384ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7385{ 7386 struct ctl_lun *lun; 7387 struct scsi_report_supported_opcodes *cdb; 7388 const struct ctl_cmd_entry *entry, *sentry; 7389 struct scsi_report_supported_opcodes_all *all; 7390 struct scsi_report_supported_opcodes_descr *descr; 7391 struct scsi_report_supported_opcodes_one *one; 7392 int retval; 7393 int alloc_len, total_len; 7394 int opcode, service_action, i, j, num; 7395 7396 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7397 7398 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7399 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7400 7401 retval = CTL_RETVAL_COMPLETE; 7402 7403 opcode = cdb->requested_opcode; 7404 service_action = scsi_2btoul(cdb->requested_service_action); 7405 switch (cdb->options & RSO_OPTIONS_MASK) { 7406 case RSO_OPTIONS_ALL: 7407 num = 0; 7408 for (i = 0; i < 256; i++) { 7409 entry = &ctl_cmd_table[i]; 7410 if (entry->flags & CTL_CMD_FLAG_SA5) { 7411 for (j = 0; j < 32; j++) { 7412 sentry = &((const struct ctl_cmd_entry *) 7413 entry->execute)[j]; 7414 if (ctl_cmd_applicable( 7415 lun->be_lun->lun_type, sentry)) 7416 num++; 7417 } 7418 } else { 7419 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7420 entry)) 7421 num++; 7422 } 7423 } 7424 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7425 num * sizeof(struct scsi_report_supported_opcodes_descr); 7426 break; 7427 case RSO_OPTIONS_OC: 7428 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7429 ctl_set_invalid_field(/*ctsio*/ ctsio, 7430 /*sks_valid*/ 1, 7431 /*command*/ 1, 7432 /*field*/ 2, 7433 /*bit_valid*/ 1, 7434 /*bit*/ 2); 7435 ctl_done((union ctl_io *)ctsio); 7436 return (CTL_RETVAL_COMPLETE); 7437 } 7438 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7439 break; 7440 case RSO_OPTIONS_OC_SA: 7441 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7442 service_action >= 32) { 7443 ctl_set_invalid_field(/*ctsio*/ ctsio, 7444 /*sks_valid*/ 1, 7445 /*command*/ 1, 7446 /*field*/ 2, 7447 /*bit_valid*/ 1, 7448 /*bit*/ 2); 7449 ctl_done((union ctl_io *)ctsio); 7450 return (CTL_RETVAL_COMPLETE); 7451 } 7452 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7453 break; 7454 default: 7455 ctl_set_invalid_field(/*ctsio*/ ctsio, 7456 /*sks_valid*/ 1, 7457 /*command*/ 1, 7458 /*field*/ 2, 7459 /*bit_valid*/ 1, 7460 /*bit*/ 2); 7461 ctl_done((union ctl_io *)ctsio); 7462 return (CTL_RETVAL_COMPLETE); 7463 } 7464 7465 alloc_len = scsi_4btoul(cdb->length); 7466 7467 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7468 7469 ctsio->kern_sg_entries = 0; 7470 7471 if (total_len < alloc_len) { 7472 ctsio->residual = alloc_len - total_len; 7473 ctsio->kern_data_len = total_len; 7474 ctsio->kern_total_len = total_len; 7475 } else { 7476 ctsio->residual = 0; 7477 ctsio->kern_data_len = alloc_len; 7478 ctsio->kern_total_len = alloc_len; 7479 } 7480 ctsio->kern_data_resid = 0; 7481 ctsio->kern_rel_offset = 0; 7482 7483 switch (cdb->options & RSO_OPTIONS_MASK) { 7484 case RSO_OPTIONS_ALL: 7485 all = (struct scsi_report_supported_opcodes_all *) 7486 ctsio->kern_data_ptr; 7487 num = 0; 7488 for (i = 0; i < 256; i++) { 7489 entry = &ctl_cmd_table[i]; 7490 if (entry->flags & CTL_CMD_FLAG_SA5) { 7491 for (j = 0; j < 32; j++) { 7492 sentry = &((const struct ctl_cmd_entry *) 7493 entry->execute)[j]; 7494 if (!ctl_cmd_applicable( 7495 lun->be_lun->lun_type, sentry)) 7496 continue; 7497 descr = &all->descr[num++]; 7498 descr->opcode = i; 7499 scsi_ulto2b(j, descr->service_action); 7500 descr->flags = RSO_SERVACTV; 7501 scsi_ulto2b(sentry->length, 7502 descr->cdb_length); 7503 } 7504 } else { 7505 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7506 entry)) 7507 continue; 7508 descr = &all->descr[num++]; 7509 descr->opcode = i; 7510 scsi_ulto2b(0, descr->service_action); 7511 descr->flags = 0; 7512 scsi_ulto2b(entry->length, descr->cdb_length); 7513 } 7514 } 7515 scsi_ulto4b( 7516 num * sizeof(struct scsi_report_supported_opcodes_descr), 7517 all->length); 7518 break; 7519 case RSO_OPTIONS_OC: 7520 one = (struct scsi_report_supported_opcodes_one *) 7521 ctsio->kern_data_ptr; 7522 entry = &ctl_cmd_table[opcode]; 7523 goto fill_one; 7524 case RSO_OPTIONS_OC_SA: 7525 one = (struct scsi_report_supported_opcodes_one *) 7526 ctsio->kern_data_ptr; 7527 entry = &ctl_cmd_table[opcode]; 7528 entry = &((const struct ctl_cmd_entry *) 7529 entry->execute)[service_action]; 7530fill_one: 7531 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7532 one->support = 3; 7533 scsi_ulto2b(entry->length, one->cdb_length); 7534 one->cdb_usage[0] = opcode; 7535 memcpy(&one->cdb_usage[1], entry->usage, 7536 entry->length - 1); 7537 } else 7538 one->support = 1; 7539 break; 7540 } 7541 7542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7543 ctsio->be_move_done = ctl_config_move_done; 7544 7545 ctl_datamove((union ctl_io *)ctsio); 7546 return(retval); 7547} 7548 7549int 7550ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7551{ 7552 struct ctl_lun *lun; 7553 struct scsi_report_supported_tmf *cdb; 7554 struct scsi_report_supported_tmf_data *data; 7555 int retval; 7556 int alloc_len, total_len; 7557 7558 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7559 7560 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7561 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7562 7563 retval = CTL_RETVAL_COMPLETE; 7564 7565 total_len = sizeof(struct scsi_report_supported_tmf_data); 7566 alloc_len = scsi_4btoul(cdb->length); 7567 7568 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7569 7570 ctsio->kern_sg_entries = 0; 7571 7572 if (total_len < alloc_len) { 7573 ctsio->residual = alloc_len - total_len; 7574 ctsio->kern_data_len = total_len; 7575 ctsio->kern_total_len = total_len; 7576 } else { 7577 ctsio->residual = 0; 7578 ctsio->kern_data_len = alloc_len; 7579 ctsio->kern_total_len = alloc_len; 7580 } 7581 ctsio->kern_data_resid = 0; 7582 ctsio->kern_rel_offset = 0; 7583 7584 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7585 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7586 data->byte2 |= RST_ITNRS; 7587 7588 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7589 ctsio->be_move_done = ctl_config_move_done; 7590 7591 ctl_datamove((union ctl_io *)ctsio); 7592 return (retval); 7593} 7594 7595int 7596ctl_report_timestamp(struct ctl_scsiio *ctsio) 7597{ 7598 struct ctl_lun *lun; 7599 struct scsi_report_timestamp *cdb; 7600 struct scsi_report_timestamp_data *data; 7601 struct timeval tv; 7602 int64_t timestamp; 7603 int retval; 7604 int alloc_len, total_len; 7605 7606 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7607 7608 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7609 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7610 7611 retval = CTL_RETVAL_COMPLETE; 7612 7613 total_len = sizeof(struct scsi_report_timestamp_data); 7614 alloc_len = scsi_4btoul(cdb->length); 7615 7616 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7617 7618 ctsio->kern_sg_entries = 0; 7619 7620 if (total_len < alloc_len) { 7621 ctsio->residual = alloc_len - total_len; 7622 ctsio->kern_data_len = total_len; 7623 ctsio->kern_total_len = total_len; 7624 } else { 7625 ctsio->residual = 0; 7626 ctsio->kern_data_len = alloc_len; 7627 ctsio->kern_total_len = alloc_len; 7628 } 7629 ctsio->kern_data_resid = 0; 7630 ctsio->kern_rel_offset = 0; 7631 7632 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7633 scsi_ulto2b(sizeof(*data) - 2, data->length); 7634 data->origin = RTS_ORIG_OUTSIDE; 7635 getmicrotime(&tv); 7636 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7637 scsi_ulto4b(timestamp >> 16, data->timestamp); 7638 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7639 7640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7641 ctsio->be_move_done = ctl_config_move_done; 7642 7643 ctl_datamove((union ctl_io *)ctsio); 7644 return (retval); 7645} 7646 7647int 7648ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7649{ 7650 struct scsi_per_res_in *cdb; 7651 int alloc_len, total_len = 0; 7652 /* struct scsi_per_res_in_rsrv in_data; */ 7653 struct ctl_lun *lun; 7654 struct ctl_softc *softc; 7655 7656 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7657 7658 softc = control_softc; 7659 7660 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7661 7662 alloc_len = scsi_2btoul(cdb->length); 7663 7664 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7665 7666retry: 7667 mtx_lock(&lun->lun_lock); 7668 switch (cdb->action) { 7669 case SPRI_RK: /* read keys */ 7670 total_len = sizeof(struct scsi_per_res_in_keys) + 7671 lun->pr_key_count * 7672 sizeof(struct scsi_per_res_key); 7673 break; 7674 case SPRI_RR: /* read reservation */ 7675 if (lun->flags & CTL_LUN_PR_RESERVED) 7676 total_len = sizeof(struct scsi_per_res_in_rsrv); 7677 else 7678 total_len = sizeof(struct scsi_per_res_in_header); 7679 break; 7680 case SPRI_RC: /* report capabilities */ 7681 total_len = sizeof(struct scsi_per_res_cap); 7682 break; 7683 case SPRI_RS: /* read full status */ 7684 total_len = sizeof(struct scsi_per_res_in_header) + 7685 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7686 lun->pr_key_count; 7687 break; 7688 default: 7689 panic("Invalid PR type %x", cdb->action); 7690 } 7691 mtx_unlock(&lun->lun_lock); 7692 7693 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7694 7695 if (total_len < alloc_len) { 7696 ctsio->residual = alloc_len - total_len; 7697 ctsio->kern_data_len = total_len; 7698 ctsio->kern_total_len = total_len; 7699 } else { 7700 ctsio->residual = 0; 7701 ctsio->kern_data_len = alloc_len; 7702 ctsio->kern_total_len = alloc_len; 7703 } 7704 7705 ctsio->kern_data_resid = 0; 7706 ctsio->kern_rel_offset = 0; 7707 ctsio->kern_sg_entries = 0; 7708 7709 mtx_lock(&lun->lun_lock); 7710 switch (cdb->action) { 7711 case SPRI_RK: { // read keys 7712 struct scsi_per_res_in_keys *res_keys; 7713 int i, key_count; 7714 7715 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7716 7717 /* 7718 * We had to drop the lock to allocate our buffer, which 7719 * leaves time for someone to come in with another 7720 * persistent reservation. (That is unlikely, though, 7721 * since this should be the only persistent reservation 7722 * command active right now.) 7723 */ 7724 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7725 (lun->pr_key_count * 7726 sizeof(struct scsi_per_res_key)))){ 7727 mtx_unlock(&lun->lun_lock); 7728 free(ctsio->kern_data_ptr, M_CTL); 7729 printf("%s: reservation length changed, retrying\n", 7730 __func__); 7731 goto retry; 7732 } 7733 7734 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7735 7736 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7737 lun->pr_key_count, res_keys->header.length); 7738 7739 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7740 if (!lun->per_res[i].registered) 7741 continue; 7742 7743 /* 7744 * We used lun->pr_key_count to calculate the 7745 * size to allocate. If it turns out the number of 7746 * initiators with the registered flag set is 7747 * larger than that (i.e. they haven't been kept in 7748 * sync), we've got a problem. 7749 */ 7750 if (key_count >= lun->pr_key_count) { 7751#ifdef NEEDTOPORT 7752 csevent_log(CSC_CTL | CSC_SHELF_SW | 7753 CTL_PR_ERROR, 7754 csevent_LogType_Fault, 7755 csevent_AlertLevel_Yellow, 7756 csevent_FRU_ShelfController, 7757 csevent_FRU_Firmware, 7758 csevent_FRU_Unknown, 7759 "registered keys %d >= key " 7760 "count %d", key_count, 7761 lun->pr_key_count); 7762#endif 7763 key_count++; 7764 continue; 7765 } 7766 memcpy(res_keys->keys[key_count].key, 7767 lun->per_res[i].res_key.key, 7768 ctl_min(sizeof(res_keys->keys[key_count].key), 7769 sizeof(lun->per_res[i].res_key))); 7770 key_count++; 7771 } 7772 break; 7773 } 7774 case SPRI_RR: { // read reservation 7775 struct scsi_per_res_in_rsrv *res; 7776 int tmp_len, header_only; 7777 7778 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7779 7780 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7781 7782 if (lun->flags & CTL_LUN_PR_RESERVED) 7783 { 7784 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7785 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7786 res->header.length); 7787 header_only = 0; 7788 } else { 7789 tmp_len = sizeof(struct scsi_per_res_in_header); 7790 scsi_ulto4b(0, res->header.length); 7791 header_only = 1; 7792 } 7793 7794 /* 7795 * We had to drop the lock to allocate our buffer, which 7796 * leaves time for someone to come in with another 7797 * persistent reservation. (That is unlikely, though, 7798 * since this should be the only persistent reservation 7799 * command active right now.) 7800 */ 7801 if (tmp_len != total_len) { 7802 mtx_unlock(&lun->lun_lock); 7803 free(ctsio->kern_data_ptr, M_CTL); 7804 printf("%s: reservation status changed, retrying\n", 7805 __func__); 7806 goto retry; 7807 } 7808 7809 /* 7810 * No reservation held, so we're done. 7811 */ 7812 if (header_only != 0) 7813 break; 7814 7815 /* 7816 * If the registration is an All Registrants type, the key 7817 * is 0, since it doesn't really matter. 7818 */ 7819 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7820 memcpy(res->data.reservation, 7821 &lun->per_res[lun->pr_res_idx].res_key, 7822 sizeof(struct scsi_per_res_key)); 7823 } 7824 res->data.scopetype = lun->res_type; 7825 break; 7826 } 7827 case SPRI_RC: //report capabilities 7828 { 7829 struct scsi_per_res_cap *res_cap; 7830 uint16_t type_mask; 7831 7832 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7833 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7834 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7835 type_mask = SPRI_TM_WR_EX_AR | 7836 SPRI_TM_EX_AC_RO | 7837 SPRI_TM_WR_EX_RO | 7838 SPRI_TM_EX_AC | 7839 SPRI_TM_WR_EX | 7840 SPRI_TM_EX_AC_AR; 7841 scsi_ulto2b(type_mask, res_cap->type_mask); 7842 break; 7843 } 7844 case SPRI_RS: { // read full status 7845 struct scsi_per_res_in_full *res_status; 7846 struct scsi_per_res_in_full_desc *res_desc; 7847 struct ctl_port *port; 7848 int i, len; 7849 7850 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7851 7852 /* 7853 * We had to drop the lock to allocate our buffer, which 7854 * leaves time for someone to come in with another 7855 * persistent reservation. (That is unlikely, though, 7856 * since this should be the only persistent reservation 7857 * command active right now.) 7858 */ 7859 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7860 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7861 lun->pr_key_count)){ 7862 mtx_unlock(&lun->lun_lock); 7863 free(ctsio->kern_data_ptr, M_CTL); 7864 printf("%s: reservation length changed, retrying\n", 7865 __func__); 7866 goto retry; 7867 } 7868 7869 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7870 7871 res_desc = &res_status->desc[0]; 7872 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7873 if (!lun->per_res[i].registered) 7874 continue; 7875 7876 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7877 sizeof(res_desc->res_key)); 7878 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7879 (lun->pr_res_idx == i || 7880 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7881 res_desc->flags = SPRI_FULL_R_HOLDER; 7882 res_desc->scopetype = lun->res_type; 7883 } 7884 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7885 res_desc->rel_trgt_port_id); 7886 len = 0; 7887 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7888 if (port != NULL) 7889 len = ctl_create_iid(port, 7890 i % CTL_MAX_INIT_PER_PORT, 7891 res_desc->transport_id); 7892 scsi_ulto4b(len, res_desc->additional_length); 7893 res_desc = (struct scsi_per_res_in_full_desc *) 7894 &res_desc->transport_id[len]; 7895 } 7896 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7897 res_status->header.length); 7898 break; 7899 } 7900 default: 7901 /* 7902 * This is a bug, because we just checked for this above, 7903 * and should have returned an error. 7904 */ 7905 panic("Invalid PR type %x", cdb->action); 7906 break; /* NOTREACHED */ 7907 } 7908 mtx_unlock(&lun->lun_lock); 7909 7910 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7911 ctsio->be_move_done = ctl_config_move_done; 7912 7913 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7914 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7915 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7916 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7917 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7918 7919 ctl_datamove((union ctl_io *)ctsio); 7920 7921 return (CTL_RETVAL_COMPLETE); 7922} 7923 7924/* 7925 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7926 * it should return. 7927 */ 7928static int 7929ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7930 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7931 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7932 struct scsi_per_res_out_parms* param) 7933{ 7934 union ctl_ha_msg persis_io; 7935 int retval, i; 7936 int isc_retval; 7937 7938 retval = 0; 7939 7940 mtx_lock(&lun->lun_lock); 7941 if (sa_res_key == 0) { 7942 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7943 /* validate scope and type */ 7944 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7945 SPR_LU_SCOPE) { 7946 mtx_unlock(&lun->lun_lock); 7947 ctl_set_invalid_field(/*ctsio*/ ctsio, 7948 /*sks_valid*/ 1, 7949 /*command*/ 1, 7950 /*field*/ 2, 7951 /*bit_valid*/ 1, 7952 /*bit*/ 4); 7953 ctl_done((union ctl_io *)ctsio); 7954 return (1); 7955 } 7956 7957 if (type>8 || type==2 || type==4 || type==0) { 7958 mtx_unlock(&lun->lun_lock); 7959 ctl_set_invalid_field(/*ctsio*/ ctsio, 7960 /*sks_valid*/ 1, 7961 /*command*/ 1, 7962 /*field*/ 2, 7963 /*bit_valid*/ 1, 7964 /*bit*/ 0); 7965 ctl_done((union ctl_io *)ctsio); 7966 return (1); 7967 } 7968 7969 /* temporarily unregister this nexus */ 7970 lun->per_res[residx].registered = 0; 7971 7972 /* 7973 * Unregister everybody else and build UA for 7974 * them 7975 */ 7976 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7977 if (lun->per_res[i].registered == 0) 7978 continue; 7979 7980 if (!persis_offset 7981 && i <CTL_MAX_INITIATORS) 7982 lun->pending_sense[i].ua_pending |= 7983 CTL_UA_REG_PREEMPT; 7984 else if (persis_offset 7985 && i >= persis_offset) 7986 lun->pending_sense[i-persis_offset 7987 ].ua_pending |= 7988 CTL_UA_REG_PREEMPT; 7989 lun->per_res[i].registered = 0; 7990 memset(&lun->per_res[i].res_key, 0, 7991 sizeof(struct scsi_per_res_key)); 7992 } 7993 lun->per_res[residx].registered = 1; 7994 lun->pr_key_count = 1; 7995 lun->res_type = type; 7996 if (lun->res_type != SPR_TYPE_WR_EX_AR 7997 && lun->res_type != SPR_TYPE_EX_AC_AR) 7998 lun->pr_res_idx = residx; 7999 8000 /* send msg to other side */ 8001 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8002 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8003 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8004 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8005 persis_io.pr.pr_info.res_type = type; 8006 memcpy(persis_io.pr.pr_info.sa_res_key, 8007 param->serv_act_res_key, 8008 sizeof(param->serv_act_res_key)); 8009 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8010 &persis_io, sizeof(persis_io), 0)) > 8011 CTL_HA_STATUS_SUCCESS) { 8012 printf("CTL:Persis Out error returned " 8013 "from ctl_ha_msg_send %d\n", 8014 isc_retval); 8015 } 8016 } else { 8017 /* not all registrants */ 8018 mtx_unlock(&lun->lun_lock); 8019 free(ctsio->kern_data_ptr, M_CTL); 8020 ctl_set_invalid_field(ctsio, 8021 /*sks_valid*/ 1, 8022 /*command*/ 0, 8023 /*field*/ 8, 8024 /*bit_valid*/ 0, 8025 /*bit*/ 0); 8026 ctl_done((union ctl_io *)ctsio); 8027 return (1); 8028 } 8029 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8030 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8031 int found = 0; 8032 8033 if (res_key == sa_res_key) { 8034 /* special case */ 8035 /* 8036 * The spec implies this is not good but doesn't 8037 * say what to do. There are two choices either 8038 * generate a res conflict or check condition 8039 * with illegal field in parameter data. Since 8040 * that is what is done when the sa_res_key is 8041 * zero I'll take that approach since this has 8042 * to do with the sa_res_key. 8043 */ 8044 mtx_unlock(&lun->lun_lock); 8045 free(ctsio->kern_data_ptr, M_CTL); 8046 ctl_set_invalid_field(ctsio, 8047 /*sks_valid*/ 1, 8048 /*command*/ 0, 8049 /*field*/ 8, 8050 /*bit_valid*/ 0, 8051 /*bit*/ 0); 8052 ctl_done((union ctl_io *)ctsio); 8053 return (1); 8054 } 8055 8056 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8057 if (lun->per_res[i].registered 8058 && memcmp(param->serv_act_res_key, 8059 lun->per_res[i].res_key.key, 8060 sizeof(struct scsi_per_res_key)) != 0) 8061 continue; 8062 8063 found = 1; 8064 lun->per_res[i].registered = 0; 8065 memset(&lun->per_res[i].res_key, 0, 8066 sizeof(struct scsi_per_res_key)); 8067 lun->pr_key_count--; 8068 8069 if (!persis_offset 8070 && i < CTL_MAX_INITIATORS) 8071 lun->pending_sense[i].ua_pending |= 8072 CTL_UA_REG_PREEMPT; 8073 else if (persis_offset 8074 && i >= persis_offset) 8075 lun->pending_sense[i-persis_offset].ua_pending|= 8076 CTL_UA_REG_PREEMPT; 8077 } 8078 if (!found) { 8079 mtx_unlock(&lun->lun_lock); 8080 free(ctsio->kern_data_ptr, M_CTL); 8081 ctl_set_reservation_conflict(ctsio); 8082 ctl_done((union ctl_io *)ctsio); 8083 return (CTL_RETVAL_COMPLETE); 8084 } 8085 /* send msg to other side */ 8086 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8087 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8088 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8089 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8090 persis_io.pr.pr_info.res_type = type; 8091 memcpy(persis_io.pr.pr_info.sa_res_key, 8092 param->serv_act_res_key, 8093 sizeof(param->serv_act_res_key)); 8094 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8095 &persis_io, sizeof(persis_io), 0)) > 8096 CTL_HA_STATUS_SUCCESS) { 8097 printf("CTL:Persis Out error returned from " 8098 "ctl_ha_msg_send %d\n", isc_retval); 8099 } 8100 } else { 8101 /* Reserved but not all registrants */ 8102 /* sa_res_key is res holder */ 8103 if (memcmp(param->serv_act_res_key, 8104 lun->per_res[lun->pr_res_idx].res_key.key, 8105 sizeof(struct scsi_per_res_key)) == 0) { 8106 /* validate scope and type */ 8107 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8108 SPR_LU_SCOPE) { 8109 mtx_unlock(&lun->lun_lock); 8110 ctl_set_invalid_field(/*ctsio*/ ctsio, 8111 /*sks_valid*/ 1, 8112 /*command*/ 1, 8113 /*field*/ 2, 8114 /*bit_valid*/ 1, 8115 /*bit*/ 4); 8116 ctl_done((union ctl_io *)ctsio); 8117 return (1); 8118 } 8119 8120 if (type>8 || type==2 || type==4 || type==0) { 8121 mtx_unlock(&lun->lun_lock); 8122 ctl_set_invalid_field(/*ctsio*/ ctsio, 8123 /*sks_valid*/ 1, 8124 /*command*/ 1, 8125 /*field*/ 2, 8126 /*bit_valid*/ 1, 8127 /*bit*/ 0); 8128 ctl_done((union ctl_io *)ctsio); 8129 return (1); 8130 } 8131 8132 /* 8133 * Do the following: 8134 * if sa_res_key != res_key remove all 8135 * registrants w/sa_res_key and generate UA 8136 * for these registrants(Registrations 8137 * Preempted) if it wasn't an exclusive 8138 * reservation generate UA(Reservations 8139 * Preempted) for all other registered nexuses 8140 * if the type has changed. Establish the new 8141 * reservation and holder. If res_key and 8142 * sa_res_key are the same do the above 8143 * except don't unregister the res holder. 8144 */ 8145 8146 /* 8147 * Temporarily unregister so it won't get 8148 * removed or UA generated 8149 */ 8150 lun->per_res[residx].registered = 0; 8151 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8152 if (lun->per_res[i].registered == 0) 8153 continue; 8154 8155 if (memcmp(param->serv_act_res_key, 8156 lun->per_res[i].res_key.key, 8157 sizeof(struct scsi_per_res_key)) == 0) { 8158 lun->per_res[i].registered = 0; 8159 memset(&lun->per_res[i].res_key, 8160 0, 8161 sizeof(struct scsi_per_res_key)); 8162 lun->pr_key_count--; 8163 8164 if (!persis_offset 8165 && i < CTL_MAX_INITIATORS) 8166 lun->pending_sense[i 8167 ].ua_pending |= 8168 CTL_UA_REG_PREEMPT; 8169 else if (persis_offset 8170 && i >= persis_offset) 8171 lun->pending_sense[ 8172 i-persis_offset].ua_pending |= 8173 CTL_UA_REG_PREEMPT; 8174 } else if (type != lun->res_type 8175 && (lun->res_type == SPR_TYPE_WR_EX_RO 8176 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8177 if (!persis_offset 8178 && i < CTL_MAX_INITIATORS) 8179 lun->pending_sense[i 8180 ].ua_pending |= 8181 CTL_UA_RES_RELEASE; 8182 else if (persis_offset 8183 && i >= persis_offset) 8184 lun->pending_sense[ 8185 i-persis_offset 8186 ].ua_pending |= 8187 CTL_UA_RES_RELEASE; 8188 } 8189 } 8190 lun->per_res[residx].registered = 1; 8191 lun->res_type = type; 8192 if (lun->res_type != SPR_TYPE_WR_EX_AR 8193 && lun->res_type != SPR_TYPE_EX_AC_AR) 8194 lun->pr_res_idx = residx; 8195 else 8196 lun->pr_res_idx = 8197 CTL_PR_ALL_REGISTRANTS; 8198 8199 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8200 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8201 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8202 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8203 persis_io.pr.pr_info.res_type = type; 8204 memcpy(persis_io.pr.pr_info.sa_res_key, 8205 param->serv_act_res_key, 8206 sizeof(param->serv_act_res_key)); 8207 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8208 &persis_io, sizeof(persis_io), 0)) > 8209 CTL_HA_STATUS_SUCCESS) { 8210 printf("CTL:Persis Out error returned " 8211 "from ctl_ha_msg_send %d\n", 8212 isc_retval); 8213 } 8214 } else { 8215 /* 8216 * sa_res_key is not the res holder just 8217 * remove registrants 8218 */ 8219 int found=0; 8220 8221 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8222 if (memcmp(param->serv_act_res_key, 8223 lun->per_res[i].res_key.key, 8224 sizeof(struct scsi_per_res_key)) != 0) 8225 continue; 8226 8227 found = 1; 8228 lun->per_res[i].registered = 0; 8229 memset(&lun->per_res[i].res_key, 0, 8230 sizeof(struct scsi_per_res_key)); 8231 lun->pr_key_count--; 8232 8233 if (!persis_offset 8234 && i < CTL_MAX_INITIATORS) 8235 lun->pending_sense[i].ua_pending |= 8236 CTL_UA_REG_PREEMPT; 8237 else if (persis_offset 8238 && i >= persis_offset) 8239 lun->pending_sense[ 8240 i-persis_offset].ua_pending |= 8241 CTL_UA_REG_PREEMPT; 8242 } 8243 8244 if (!found) { 8245 mtx_unlock(&lun->lun_lock); 8246 free(ctsio->kern_data_ptr, M_CTL); 8247 ctl_set_reservation_conflict(ctsio); 8248 ctl_done((union ctl_io *)ctsio); 8249 return (1); 8250 } 8251 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8252 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8253 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8254 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8255 persis_io.pr.pr_info.res_type = type; 8256 memcpy(persis_io.pr.pr_info.sa_res_key, 8257 param->serv_act_res_key, 8258 sizeof(param->serv_act_res_key)); 8259 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8260 &persis_io, sizeof(persis_io), 0)) > 8261 CTL_HA_STATUS_SUCCESS) { 8262 printf("CTL:Persis Out error returned " 8263 "from ctl_ha_msg_send %d\n", 8264 isc_retval); 8265 } 8266 } 8267 } 8268 8269 lun->PRGeneration++; 8270 mtx_unlock(&lun->lun_lock); 8271 8272 return (retval); 8273} 8274 8275static void 8276ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8277{ 8278 int i; 8279 8280 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8281 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8282 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8283 msg->pr.pr_info.sa_res_key, 8284 sizeof(struct scsi_per_res_key)) != 0) { 8285 uint64_t sa_res_key; 8286 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8287 8288 if (sa_res_key == 0) { 8289 /* temporarily unregister this nexus */ 8290 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8291 8292 /* 8293 * Unregister everybody else and build UA for 8294 * them 8295 */ 8296 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8297 if (lun->per_res[i].registered == 0) 8298 continue; 8299 8300 if (!persis_offset 8301 && i < CTL_MAX_INITIATORS) 8302 lun->pending_sense[i].ua_pending |= 8303 CTL_UA_REG_PREEMPT; 8304 else if (persis_offset && i >= persis_offset) 8305 lun->pending_sense[i - 8306 persis_offset].ua_pending |= 8307 CTL_UA_REG_PREEMPT; 8308 lun->per_res[i].registered = 0; 8309 memset(&lun->per_res[i].res_key, 0, 8310 sizeof(struct scsi_per_res_key)); 8311 } 8312 8313 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8314 lun->pr_key_count = 1; 8315 lun->res_type = msg->pr.pr_info.res_type; 8316 if (lun->res_type != SPR_TYPE_WR_EX_AR 8317 && lun->res_type != SPR_TYPE_EX_AC_AR) 8318 lun->pr_res_idx = msg->pr.pr_info.residx; 8319 } else { 8320 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8321 if (memcmp(msg->pr.pr_info.sa_res_key, 8322 lun->per_res[i].res_key.key, 8323 sizeof(struct scsi_per_res_key)) != 0) 8324 continue; 8325 8326 lun->per_res[i].registered = 0; 8327 memset(&lun->per_res[i].res_key, 0, 8328 sizeof(struct scsi_per_res_key)); 8329 lun->pr_key_count--; 8330 8331 if (!persis_offset 8332 && i < persis_offset) 8333 lun->pending_sense[i].ua_pending |= 8334 CTL_UA_REG_PREEMPT; 8335 else if (persis_offset 8336 && i >= persis_offset) 8337 lun->pending_sense[i - 8338 persis_offset].ua_pending |= 8339 CTL_UA_REG_PREEMPT; 8340 } 8341 } 8342 } else { 8343 /* 8344 * Temporarily unregister so it won't get removed 8345 * or UA generated 8346 */ 8347 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8348 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8349 if (lun->per_res[i].registered == 0) 8350 continue; 8351 8352 if (memcmp(msg->pr.pr_info.sa_res_key, 8353 lun->per_res[i].res_key.key, 8354 sizeof(struct scsi_per_res_key)) == 0) { 8355 lun->per_res[i].registered = 0; 8356 memset(&lun->per_res[i].res_key, 0, 8357 sizeof(struct scsi_per_res_key)); 8358 lun->pr_key_count--; 8359 if (!persis_offset 8360 && i < CTL_MAX_INITIATORS) 8361 lun->pending_sense[i].ua_pending |= 8362 CTL_UA_REG_PREEMPT; 8363 else if (persis_offset 8364 && i >= persis_offset) 8365 lun->pending_sense[i - 8366 persis_offset].ua_pending |= 8367 CTL_UA_REG_PREEMPT; 8368 } else if (msg->pr.pr_info.res_type != lun->res_type 8369 && (lun->res_type == SPR_TYPE_WR_EX_RO 8370 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8371 if (!persis_offset 8372 && i < persis_offset) 8373 lun->pending_sense[i 8374 ].ua_pending |= 8375 CTL_UA_RES_RELEASE; 8376 else if (persis_offset 8377 && i >= persis_offset) 8378 lun->pending_sense[i - 8379 persis_offset].ua_pending |= 8380 CTL_UA_RES_RELEASE; 8381 } 8382 } 8383 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8384 lun->res_type = msg->pr.pr_info.res_type; 8385 if (lun->res_type != SPR_TYPE_WR_EX_AR 8386 && lun->res_type != SPR_TYPE_EX_AC_AR) 8387 lun->pr_res_idx = msg->pr.pr_info.residx; 8388 else 8389 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8390 } 8391 lun->PRGeneration++; 8392 8393} 8394 8395 8396int 8397ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8398{ 8399 int retval; 8400 int isc_retval; 8401 u_int32_t param_len; 8402 struct scsi_per_res_out *cdb; 8403 struct ctl_lun *lun; 8404 struct scsi_per_res_out_parms* param; 8405 struct ctl_softc *softc; 8406 uint32_t residx; 8407 uint64_t res_key, sa_res_key; 8408 uint8_t type; 8409 union ctl_ha_msg persis_io; 8410 int i; 8411 8412 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8413 8414 retval = CTL_RETVAL_COMPLETE; 8415 8416 softc = control_softc; 8417 8418 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8419 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8420 8421 /* 8422 * We only support whole-LUN scope. The scope & type are ignored for 8423 * register, register and ignore existing key and clear. 8424 * We sometimes ignore scope and type on preempts too!! 8425 * Verify reservation type here as well. 8426 */ 8427 type = cdb->scope_type & SPR_TYPE_MASK; 8428 if ((cdb->action == SPRO_RESERVE) 8429 || (cdb->action == SPRO_RELEASE)) { 8430 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8431 ctl_set_invalid_field(/*ctsio*/ ctsio, 8432 /*sks_valid*/ 1, 8433 /*command*/ 1, 8434 /*field*/ 2, 8435 /*bit_valid*/ 1, 8436 /*bit*/ 4); 8437 ctl_done((union ctl_io *)ctsio); 8438 return (CTL_RETVAL_COMPLETE); 8439 } 8440 8441 if (type>8 || type==2 || type==4 || type==0) { 8442 ctl_set_invalid_field(/*ctsio*/ ctsio, 8443 /*sks_valid*/ 1, 8444 /*command*/ 1, 8445 /*field*/ 2, 8446 /*bit_valid*/ 1, 8447 /*bit*/ 0); 8448 ctl_done((union ctl_io *)ctsio); 8449 return (CTL_RETVAL_COMPLETE); 8450 } 8451 } 8452 8453 param_len = scsi_4btoul(cdb->length); 8454 8455 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8456 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8457 ctsio->kern_data_len = param_len; 8458 ctsio->kern_total_len = param_len; 8459 ctsio->kern_data_resid = 0; 8460 ctsio->kern_rel_offset = 0; 8461 ctsio->kern_sg_entries = 0; 8462 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8463 ctsio->be_move_done = ctl_config_move_done; 8464 ctl_datamove((union ctl_io *)ctsio); 8465 8466 return (CTL_RETVAL_COMPLETE); 8467 } 8468 8469 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8470 8471 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8472 res_key = scsi_8btou64(param->res_key.key); 8473 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8474 8475 /* 8476 * Validate the reservation key here except for SPRO_REG_IGNO 8477 * This must be done for all other service actions 8478 */ 8479 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8480 mtx_lock(&lun->lun_lock); 8481 if (lun->per_res[residx].registered) { 8482 if (memcmp(param->res_key.key, 8483 lun->per_res[residx].res_key.key, 8484 ctl_min(sizeof(param->res_key), 8485 sizeof(lun->per_res[residx].res_key))) != 0) { 8486 /* 8487 * The current key passed in doesn't match 8488 * the one the initiator previously 8489 * registered. 8490 */ 8491 mtx_unlock(&lun->lun_lock); 8492 free(ctsio->kern_data_ptr, M_CTL); 8493 ctl_set_reservation_conflict(ctsio); 8494 ctl_done((union ctl_io *)ctsio); 8495 return (CTL_RETVAL_COMPLETE); 8496 } 8497 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8498 /* 8499 * We are not registered 8500 */ 8501 mtx_unlock(&lun->lun_lock); 8502 free(ctsio->kern_data_ptr, M_CTL); 8503 ctl_set_reservation_conflict(ctsio); 8504 ctl_done((union ctl_io *)ctsio); 8505 return (CTL_RETVAL_COMPLETE); 8506 } else if (res_key != 0) { 8507 /* 8508 * We are not registered and trying to register but 8509 * the register key isn't zero. 8510 */ 8511 mtx_unlock(&lun->lun_lock); 8512 free(ctsio->kern_data_ptr, M_CTL); 8513 ctl_set_reservation_conflict(ctsio); 8514 ctl_done((union ctl_io *)ctsio); 8515 return (CTL_RETVAL_COMPLETE); 8516 } 8517 mtx_unlock(&lun->lun_lock); 8518 } 8519 8520 switch (cdb->action & SPRO_ACTION_MASK) { 8521 case SPRO_REGISTER: 8522 case SPRO_REG_IGNO: { 8523 8524#if 0 8525 printf("Registration received\n"); 8526#endif 8527 8528 /* 8529 * We don't support any of these options, as we report in 8530 * the read capabilities request (see 8531 * ctl_persistent_reserve_in(), above). 8532 */ 8533 if ((param->flags & SPR_SPEC_I_PT) 8534 || (param->flags & SPR_ALL_TG_PT) 8535 || (param->flags & SPR_APTPL)) { 8536 int bit_ptr; 8537 8538 if (param->flags & SPR_APTPL) 8539 bit_ptr = 0; 8540 else if (param->flags & SPR_ALL_TG_PT) 8541 bit_ptr = 2; 8542 else /* SPR_SPEC_I_PT */ 8543 bit_ptr = 3; 8544 8545 free(ctsio->kern_data_ptr, M_CTL); 8546 ctl_set_invalid_field(ctsio, 8547 /*sks_valid*/ 1, 8548 /*command*/ 0, 8549 /*field*/ 20, 8550 /*bit_valid*/ 1, 8551 /*bit*/ bit_ptr); 8552 ctl_done((union ctl_io *)ctsio); 8553 return (CTL_RETVAL_COMPLETE); 8554 } 8555 8556 mtx_lock(&lun->lun_lock); 8557 8558 /* 8559 * The initiator wants to clear the 8560 * key/unregister. 8561 */ 8562 if (sa_res_key == 0) { 8563 if ((res_key == 0 8564 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8565 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8566 && !lun->per_res[residx].registered)) { 8567 mtx_unlock(&lun->lun_lock); 8568 goto done; 8569 } 8570 8571 lun->per_res[residx].registered = 0; 8572 memset(&lun->per_res[residx].res_key, 8573 0, sizeof(lun->per_res[residx].res_key)); 8574 lun->pr_key_count--; 8575 8576 if (residx == lun->pr_res_idx) { 8577 lun->flags &= ~CTL_LUN_PR_RESERVED; 8578 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8579 8580 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8581 || lun->res_type == SPR_TYPE_EX_AC_RO) 8582 && lun->pr_key_count) { 8583 /* 8584 * If the reservation is a registrants 8585 * only type we need to generate a UA 8586 * for other registered inits. The 8587 * sense code should be RESERVATIONS 8588 * RELEASED 8589 */ 8590 8591 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8592 if (lun->per_res[ 8593 i+persis_offset].registered 8594 == 0) 8595 continue; 8596 lun->pending_sense[i 8597 ].ua_pending |= 8598 CTL_UA_RES_RELEASE; 8599 } 8600 } 8601 lun->res_type = 0; 8602 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8603 if (lun->pr_key_count==0) { 8604 lun->flags &= ~CTL_LUN_PR_RESERVED; 8605 lun->res_type = 0; 8606 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8607 } 8608 } 8609 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8610 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8611 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8612 persis_io.pr.pr_info.residx = residx; 8613 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8614 &persis_io, sizeof(persis_io), 0 )) > 8615 CTL_HA_STATUS_SUCCESS) { 8616 printf("CTL:Persis Out error returned from " 8617 "ctl_ha_msg_send %d\n", isc_retval); 8618 } 8619 } else /* sa_res_key != 0 */ { 8620 8621 /* 8622 * If we aren't registered currently then increment 8623 * the key count and set the registered flag. 8624 */ 8625 if (!lun->per_res[residx].registered) { 8626 lun->pr_key_count++; 8627 lun->per_res[residx].registered = 1; 8628 } 8629 8630 memcpy(&lun->per_res[residx].res_key, 8631 param->serv_act_res_key, 8632 ctl_min(sizeof(param->serv_act_res_key), 8633 sizeof(lun->per_res[residx].res_key))); 8634 8635 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8636 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8637 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8638 persis_io.pr.pr_info.residx = residx; 8639 memcpy(persis_io.pr.pr_info.sa_res_key, 8640 param->serv_act_res_key, 8641 sizeof(param->serv_act_res_key)); 8642 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8643 &persis_io, sizeof(persis_io), 0)) > 8644 CTL_HA_STATUS_SUCCESS) { 8645 printf("CTL:Persis Out error returned from " 8646 "ctl_ha_msg_send %d\n", isc_retval); 8647 } 8648 } 8649 lun->PRGeneration++; 8650 mtx_unlock(&lun->lun_lock); 8651 8652 break; 8653 } 8654 case SPRO_RESERVE: 8655#if 0 8656 printf("Reserve executed type %d\n", type); 8657#endif 8658 mtx_lock(&lun->lun_lock); 8659 if (lun->flags & CTL_LUN_PR_RESERVED) { 8660 /* 8661 * if this isn't the reservation holder and it's 8662 * not a "all registrants" type or if the type is 8663 * different then we have a conflict 8664 */ 8665 if ((lun->pr_res_idx != residx 8666 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8667 || lun->res_type != type) { 8668 mtx_unlock(&lun->lun_lock); 8669 free(ctsio->kern_data_ptr, M_CTL); 8670 ctl_set_reservation_conflict(ctsio); 8671 ctl_done((union ctl_io *)ctsio); 8672 return (CTL_RETVAL_COMPLETE); 8673 } 8674 mtx_unlock(&lun->lun_lock); 8675 } else /* create a reservation */ { 8676 /* 8677 * If it's not an "all registrants" type record 8678 * reservation holder 8679 */ 8680 if (type != SPR_TYPE_WR_EX_AR 8681 && type != SPR_TYPE_EX_AC_AR) 8682 lun->pr_res_idx = residx; /* Res holder */ 8683 else 8684 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8685 8686 lun->flags |= CTL_LUN_PR_RESERVED; 8687 lun->res_type = type; 8688 8689 mtx_unlock(&lun->lun_lock); 8690 8691 /* send msg to other side */ 8692 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8693 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8694 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8695 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8696 persis_io.pr.pr_info.res_type = type; 8697 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8698 &persis_io, sizeof(persis_io), 0)) > 8699 CTL_HA_STATUS_SUCCESS) { 8700 printf("CTL:Persis Out error returned from " 8701 "ctl_ha_msg_send %d\n", isc_retval); 8702 } 8703 } 8704 break; 8705 8706 case SPRO_RELEASE: 8707 mtx_lock(&lun->lun_lock); 8708 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8709 /* No reservation exists return good status */ 8710 mtx_unlock(&lun->lun_lock); 8711 goto done; 8712 } 8713 /* 8714 * Is this nexus a reservation holder? 8715 */ 8716 if (lun->pr_res_idx != residx 8717 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8718 /* 8719 * not a res holder return good status but 8720 * do nothing 8721 */ 8722 mtx_unlock(&lun->lun_lock); 8723 goto done; 8724 } 8725 8726 if (lun->res_type != type) { 8727 mtx_unlock(&lun->lun_lock); 8728 free(ctsio->kern_data_ptr, M_CTL); 8729 ctl_set_illegal_pr_release(ctsio); 8730 ctl_done((union ctl_io *)ctsio); 8731 return (CTL_RETVAL_COMPLETE); 8732 } 8733 8734 /* okay to release */ 8735 lun->flags &= ~CTL_LUN_PR_RESERVED; 8736 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8737 lun->res_type = 0; 8738 8739 /* 8740 * if this isn't an exclusive access 8741 * res generate UA for all other 8742 * registrants. 8743 */ 8744 if (type != SPR_TYPE_EX_AC 8745 && type != SPR_TYPE_WR_EX) { 8746 /* 8747 * temporarily unregister so we don't generate UA 8748 */ 8749 lun->per_res[residx].registered = 0; 8750 8751 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8752 if (lun->per_res[i+persis_offset].registered 8753 == 0) 8754 continue; 8755 lun->pending_sense[i].ua_pending |= 8756 CTL_UA_RES_RELEASE; 8757 } 8758 8759 lun->per_res[residx].registered = 1; 8760 } 8761 mtx_unlock(&lun->lun_lock); 8762 /* Send msg to other side */ 8763 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8764 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8765 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8766 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8767 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8768 printf("CTL:Persis Out error returned from " 8769 "ctl_ha_msg_send %d\n", isc_retval); 8770 } 8771 break; 8772 8773 case SPRO_CLEAR: 8774 /* send msg to other side */ 8775 8776 mtx_lock(&lun->lun_lock); 8777 lun->flags &= ~CTL_LUN_PR_RESERVED; 8778 lun->res_type = 0; 8779 lun->pr_key_count = 0; 8780 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8781 8782 8783 memset(&lun->per_res[residx].res_key, 8784 0, sizeof(lun->per_res[residx].res_key)); 8785 lun->per_res[residx].registered = 0; 8786 8787 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8788 if (lun->per_res[i].registered) { 8789 if (!persis_offset && i < CTL_MAX_INITIATORS) 8790 lun->pending_sense[i].ua_pending |= 8791 CTL_UA_RES_PREEMPT; 8792 else if (persis_offset && i >= persis_offset) 8793 lun->pending_sense[i-persis_offset 8794 ].ua_pending |= CTL_UA_RES_PREEMPT; 8795 8796 memset(&lun->per_res[i].res_key, 8797 0, sizeof(struct scsi_per_res_key)); 8798 lun->per_res[i].registered = 0; 8799 } 8800 lun->PRGeneration++; 8801 mtx_unlock(&lun->lun_lock); 8802 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8803 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8804 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8805 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8806 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8807 printf("CTL:Persis Out error returned from " 8808 "ctl_ha_msg_send %d\n", isc_retval); 8809 } 8810 break; 8811 8812 case SPRO_PREEMPT: { 8813 int nretval; 8814 8815 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8816 residx, ctsio, cdb, param); 8817 if (nretval != 0) 8818 return (CTL_RETVAL_COMPLETE); 8819 break; 8820 } 8821 default: 8822 panic("Invalid PR type %x", cdb->action); 8823 } 8824 8825done: 8826 free(ctsio->kern_data_ptr, M_CTL); 8827 ctl_set_success(ctsio); 8828 ctl_done((union ctl_io *)ctsio); 8829 8830 return (retval); 8831} 8832 8833/* 8834 * This routine is for handling a message from the other SC pertaining to 8835 * persistent reserve out. All the error checking will have been done 8836 * so only perorming the action need be done here to keep the two 8837 * in sync. 8838 */ 8839static void 8840ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8841{ 8842 struct ctl_lun *lun; 8843 struct ctl_softc *softc; 8844 int i; 8845 uint32_t targ_lun; 8846 8847 softc = control_softc; 8848 8849 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8850 lun = softc->ctl_luns[targ_lun]; 8851 mtx_lock(&lun->lun_lock); 8852 switch(msg->pr.pr_info.action) { 8853 case CTL_PR_REG_KEY: 8854 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8855 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8856 lun->pr_key_count++; 8857 } 8858 lun->PRGeneration++; 8859 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8860 msg->pr.pr_info.sa_res_key, 8861 sizeof(struct scsi_per_res_key)); 8862 break; 8863 8864 case CTL_PR_UNREG_KEY: 8865 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8866 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8867 0, sizeof(struct scsi_per_res_key)); 8868 lun->pr_key_count--; 8869 8870 /* XXX Need to see if the reservation has been released */ 8871 /* if so do we need to generate UA? */ 8872 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8873 lun->flags &= ~CTL_LUN_PR_RESERVED; 8874 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8875 8876 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8877 || lun->res_type == SPR_TYPE_EX_AC_RO) 8878 && lun->pr_key_count) { 8879 /* 8880 * If the reservation is a registrants 8881 * only type we need to generate a UA 8882 * for other registered inits. The 8883 * sense code should be RESERVATIONS 8884 * RELEASED 8885 */ 8886 8887 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8888 if (lun->per_res[i+ 8889 persis_offset].registered == 0) 8890 continue; 8891 8892 lun->pending_sense[i 8893 ].ua_pending |= 8894 CTL_UA_RES_RELEASE; 8895 } 8896 } 8897 lun->res_type = 0; 8898 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8899 if (lun->pr_key_count==0) { 8900 lun->flags &= ~CTL_LUN_PR_RESERVED; 8901 lun->res_type = 0; 8902 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8903 } 8904 } 8905 lun->PRGeneration++; 8906 break; 8907 8908 case CTL_PR_RESERVE: 8909 lun->flags |= CTL_LUN_PR_RESERVED; 8910 lun->res_type = msg->pr.pr_info.res_type; 8911 lun->pr_res_idx = msg->pr.pr_info.residx; 8912 8913 break; 8914 8915 case CTL_PR_RELEASE: 8916 /* 8917 * if this isn't an exclusive access res generate UA for all 8918 * other registrants. 8919 */ 8920 if (lun->res_type != SPR_TYPE_EX_AC 8921 && lun->res_type != SPR_TYPE_WR_EX) { 8922 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8923 if (lun->per_res[i+persis_offset].registered) 8924 lun->pending_sense[i].ua_pending |= 8925 CTL_UA_RES_RELEASE; 8926 } 8927 8928 lun->flags &= ~CTL_LUN_PR_RESERVED; 8929 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8930 lun->res_type = 0; 8931 break; 8932 8933 case CTL_PR_PREEMPT: 8934 ctl_pro_preempt_other(lun, msg); 8935 break; 8936 case CTL_PR_CLEAR: 8937 lun->flags &= ~CTL_LUN_PR_RESERVED; 8938 lun->res_type = 0; 8939 lun->pr_key_count = 0; 8940 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8941 8942 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8943 if (lun->per_res[i].registered == 0) 8944 continue; 8945 if (!persis_offset 8946 && i < CTL_MAX_INITIATORS) 8947 lun->pending_sense[i].ua_pending |= 8948 CTL_UA_RES_PREEMPT; 8949 else if (persis_offset 8950 && i >= persis_offset) 8951 lun->pending_sense[i-persis_offset].ua_pending|= 8952 CTL_UA_RES_PREEMPT; 8953 memset(&lun->per_res[i].res_key, 0, 8954 sizeof(struct scsi_per_res_key)); 8955 lun->per_res[i].registered = 0; 8956 } 8957 lun->PRGeneration++; 8958 break; 8959 } 8960 8961 mtx_unlock(&lun->lun_lock); 8962} 8963 8964int 8965ctl_read_write(struct ctl_scsiio *ctsio) 8966{ 8967 struct ctl_lun *lun; 8968 struct ctl_lba_len_flags *lbalen; 8969 uint64_t lba; 8970 uint32_t num_blocks; 8971 int fua, dpo; 8972 int retval; 8973 int isread; 8974 8975 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8976 8977 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8978 8979 fua = 0; 8980 dpo = 0; 8981 8982 retval = CTL_RETVAL_COMPLETE; 8983 8984 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8985 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8986 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8987 uint32_t residx; 8988 8989 /* 8990 * XXX KDM need a lock here. 8991 */ 8992 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8993 if ((lun->res_type == SPR_TYPE_EX_AC 8994 && residx != lun->pr_res_idx) 8995 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8996 || lun->res_type == SPR_TYPE_EX_AC_AR) 8997 && !lun->per_res[residx].registered)) { 8998 ctl_set_reservation_conflict(ctsio); 8999 ctl_done((union ctl_io *)ctsio); 9000 return (CTL_RETVAL_COMPLETE); 9001 } 9002 } 9003 9004 switch (ctsio->cdb[0]) { 9005 case READ_6: 9006 case WRITE_6: { 9007 struct scsi_rw_6 *cdb; 9008 9009 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9010 9011 lba = scsi_3btoul(cdb->addr); 9012 /* only 5 bits are valid in the most significant address byte */ 9013 lba &= 0x1fffff; 9014 num_blocks = cdb->length; 9015 /* 9016 * This is correct according to SBC-2. 9017 */ 9018 if (num_blocks == 0) 9019 num_blocks = 256; 9020 break; 9021 } 9022 case READ_10: 9023 case WRITE_10: { 9024 struct scsi_rw_10 *cdb; 9025 9026 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9027 9028 if (cdb->byte2 & SRW10_FUA) 9029 fua = 1; 9030 if (cdb->byte2 & SRW10_DPO) 9031 dpo = 1; 9032 9033 lba = scsi_4btoul(cdb->addr); 9034 num_blocks = scsi_2btoul(cdb->length); 9035 break; 9036 } 9037 case WRITE_VERIFY_10: { 9038 struct scsi_write_verify_10 *cdb; 9039 9040 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9041 9042 /* 9043 * XXX KDM we should do actual write verify support at some 9044 * point. This is obviously fake, we're just translating 9045 * things to a write. So we don't even bother checking the 9046 * BYTCHK field, since we don't do any verification. If 9047 * the user asks for it, we'll just pretend we did it. 9048 */ 9049 if (cdb->byte2 & SWV_DPO) 9050 dpo = 1; 9051 9052 lba = scsi_4btoul(cdb->addr); 9053 num_blocks = scsi_2btoul(cdb->length); 9054 break; 9055 } 9056 case READ_12: 9057 case WRITE_12: { 9058 struct scsi_rw_12 *cdb; 9059 9060 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9061 9062 if (cdb->byte2 & SRW12_FUA) 9063 fua = 1; 9064 if (cdb->byte2 & SRW12_DPO) 9065 dpo = 1; 9066 lba = scsi_4btoul(cdb->addr); 9067 num_blocks = scsi_4btoul(cdb->length); 9068 break; 9069 } 9070 case WRITE_VERIFY_12: { 9071 struct scsi_write_verify_12 *cdb; 9072 9073 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9074 9075 if (cdb->byte2 & SWV_DPO) 9076 dpo = 1; 9077 9078 lba = scsi_4btoul(cdb->addr); 9079 num_blocks = scsi_4btoul(cdb->length); 9080 9081 break; 9082 } 9083 case READ_16: 9084 case WRITE_16: { 9085 struct scsi_rw_16 *cdb; 9086 9087 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9088 9089 if (cdb->byte2 & SRW12_FUA) 9090 fua = 1; 9091 if (cdb->byte2 & SRW12_DPO) 9092 dpo = 1; 9093 9094 lba = scsi_8btou64(cdb->addr); 9095 num_blocks = scsi_4btoul(cdb->length); 9096 break; 9097 } 9098 case WRITE_VERIFY_16: { 9099 struct scsi_write_verify_16 *cdb; 9100 9101 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9102 9103 if (cdb->byte2 & SWV_DPO) 9104 dpo = 1; 9105 9106 lba = scsi_8btou64(cdb->addr); 9107 num_blocks = scsi_4btoul(cdb->length); 9108 break; 9109 } 9110 default: 9111 /* 9112 * We got a command we don't support. This shouldn't 9113 * happen, commands should be filtered out above us. 9114 */ 9115 ctl_set_invalid_opcode(ctsio); 9116 ctl_done((union ctl_io *)ctsio); 9117 9118 return (CTL_RETVAL_COMPLETE); 9119 break; /* NOTREACHED */ 9120 } 9121 9122 /* 9123 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9124 * interesting for us, but if RAIDCore is in write-back mode, 9125 * getting it to do write-through for a particular transaction may 9126 * not be possible. 9127 */ 9128 9129 /* 9130 * The first check is to make sure we're in bounds, the second 9131 * check is to catch wrap-around problems. If the lba + num blocks 9132 * is less than the lba, then we've wrapped around and the block 9133 * range is invalid anyway. 9134 */ 9135 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9136 || ((lba + num_blocks) < lba)) { 9137 ctl_set_lba_out_of_range(ctsio); 9138 ctl_done((union ctl_io *)ctsio); 9139 return (CTL_RETVAL_COMPLETE); 9140 } 9141 9142 /* 9143 * According to SBC-3, a transfer length of 0 is not an error. 9144 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9145 * translates to 256 blocks for those commands. 9146 */ 9147 if (num_blocks == 0) { 9148 ctl_set_success(ctsio); 9149 ctl_done((union ctl_io *)ctsio); 9150 return (CTL_RETVAL_COMPLETE); 9151 } 9152 9153 lbalen = (struct ctl_lba_len_flags *) 9154 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9155 lbalen->lba = lba; 9156 lbalen->len = num_blocks; 9157 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9158 9159 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9160 ctsio->kern_rel_offset = 0; 9161 9162 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9163 9164 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9165 9166 return (retval); 9167} 9168 9169static int 9170ctl_cnw_cont(union ctl_io *io) 9171{ 9172 struct ctl_scsiio *ctsio; 9173 struct ctl_lun *lun; 9174 struct ctl_lba_len_flags *lbalen; 9175 int retval; 9176 9177 ctsio = &io->scsiio; 9178 ctsio->io_hdr.status = CTL_STATUS_NONE; 9179 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9180 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9181 lbalen = (struct ctl_lba_len_flags *) 9182 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9183 lbalen->flags = CTL_LLF_WRITE; 9184 9185 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9186 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9187 return (retval); 9188} 9189 9190int 9191ctl_cnw(struct ctl_scsiio *ctsio) 9192{ 9193 struct ctl_lun *lun; 9194 struct ctl_lba_len_flags *lbalen; 9195 uint64_t lba; 9196 uint32_t num_blocks; 9197 int fua, dpo; 9198 int retval; 9199 9200 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9201 9202 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9203 9204 fua = 0; 9205 dpo = 0; 9206 9207 retval = CTL_RETVAL_COMPLETE; 9208 9209 switch (ctsio->cdb[0]) { 9210 case COMPARE_AND_WRITE: { 9211 struct scsi_compare_and_write *cdb; 9212 9213 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9214 9215 if (cdb->byte2 & SRW10_FUA) 9216 fua = 1; 9217 if (cdb->byte2 & SRW10_DPO) 9218 dpo = 1; 9219 lba = scsi_8btou64(cdb->addr); 9220 num_blocks = cdb->length; 9221 break; 9222 } 9223 default: 9224 /* 9225 * We got a command we don't support. This shouldn't 9226 * happen, commands should be filtered out above us. 9227 */ 9228 ctl_set_invalid_opcode(ctsio); 9229 ctl_done((union ctl_io *)ctsio); 9230 9231 return (CTL_RETVAL_COMPLETE); 9232 break; /* NOTREACHED */ 9233 } 9234 9235 /* 9236 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9237 * interesting for us, but if RAIDCore is in write-back mode, 9238 * getting it to do write-through for a particular transaction may 9239 * not be possible. 9240 */ 9241 9242 /* 9243 * The first check is to make sure we're in bounds, the second 9244 * check is to catch wrap-around problems. If the lba + num blocks 9245 * is less than the lba, then we've wrapped around and the block 9246 * range is invalid anyway. 9247 */ 9248 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9249 || ((lba + num_blocks) < lba)) { 9250 ctl_set_lba_out_of_range(ctsio); 9251 ctl_done((union ctl_io *)ctsio); 9252 return (CTL_RETVAL_COMPLETE); 9253 } 9254 9255 /* 9256 * According to SBC-3, a transfer length of 0 is not an error. 9257 */ 9258 if (num_blocks == 0) { 9259 ctl_set_success(ctsio); 9260 ctl_done((union ctl_io *)ctsio); 9261 return (CTL_RETVAL_COMPLETE); 9262 } 9263 9264 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9265 ctsio->kern_rel_offset = 0; 9266 9267 /* 9268 * Set the IO_CONT flag, so that if this I/O gets passed to 9269 * ctl_data_submit_done(), it'll get passed back to 9270 * ctl_ctl_cnw_cont() for further processing. 9271 */ 9272 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9273 ctsio->io_cont = ctl_cnw_cont; 9274 9275 lbalen = (struct ctl_lba_len_flags *) 9276 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9277 lbalen->lba = lba; 9278 lbalen->len = num_blocks; 9279 lbalen->flags = CTL_LLF_COMPARE; 9280 9281 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9282 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9283 return (retval); 9284} 9285 9286int 9287ctl_verify(struct ctl_scsiio *ctsio) 9288{ 9289 struct ctl_lun *lun; 9290 struct ctl_lba_len_flags *lbalen; 9291 uint64_t lba; 9292 uint32_t num_blocks; 9293 int bytchk, dpo; 9294 int retval; 9295 9296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9297 9298 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9299 9300 bytchk = 0; 9301 dpo = 0; 9302 retval = CTL_RETVAL_COMPLETE; 9303 9304 switch (ctsio->cdb[0]) { 9305 case VERIFY_10: { 9306 struct scsi_verify_10 *cdb; 9307 9308 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9309 if (cdb->byte2 & SVFY_BYTCHK) 9310 bytchk = 1; 9311 if (cdb->byte2 & SVFY_DPO) 9312 dpo = 1; 9313 lba = scsi_4btoul(cdb->addr); 9314 num_blocks = scsi_2btoul(cdb->length); 9315 break; 9316 } 9317 case VERIFY_12: { 9318 struct scsi_verify_12 *cdb; 9319 9320 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9321 if (cdb->byte2 & SVFY_BYTCHK) 9322 bytchk = 1; 9323 if (cdb->byte2 & SVFY_DPO) 9324 dpo = 1; 9325 lba = scsi_4btoul(cdb->addr); 9326 num_blocks = scsi_4btoul(cdb->length); 9327 break; 9328 } 9329 case VERIFY_16: { 9330 struct scsi_rw_16 *cdb; 9331 9332 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9333 if (cdb->byte2 & SVFY_BYTCHK) 9334 bytchk = 1; 9335 if (cdb->byte2 & SVFY_DPO) 9336 dpo = 1; 9337 lba = scsi_8btou64(cdb->addr); 9338 num_blocks = scsi_4btoul(cdb->length); 9339 break; 9340 } 9341 default: 9342 /* 9343 * We got a command we don't support. This shouldn't 9344 * happen, commands should be filtered out above us. 9345 */ 9346 ctl_set_invalid_opcode(ctsio); 9347 ctl_done((union ctl_io *)ctsio); 9348 return (CTL_RETVAL_COMPLETE); 9349 } 9350 9351 /* 9352 * The first check is to make sure we're in bounds, the second 9353 * check is to catch wrap-around problems. If the lba + num blocks 9354 * is less than the lba, then we've wrapped around and the block 9355 * range is invalid anyway. 9356 */ 9357 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9358 || ((lba + num_blocks) < lba)) { 9359 ctl_set_lba_out_of_range(ctsio); 9360 ctl_done((union ctl_io *)ctsio); 9361 return (CTL_RETVAL_COMPLETE); 9362 } 9363 9364 /* 9365 * According to SBC-3, a transfer length of 0 is not an error. 9366 */ 9367 if (num_blocks == 0) { 9368 ctl_set_success(ctsio); 9369 ctl_done((union ctl_io *)ctsio); 9370 return (CTL_RETVAL_COMPLETE); 9371 } 9372 9373 lbalen = (struct ctl_lba_len_flags *) 9374 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9375 lbalen->lba = lba; 9376 lbalen->len = num_blocks; 9377 if (bytchk) { 9378 lbalen->flags = CTL_LLF_COMPARE; 9379 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9380 } else { 9381 lbalen->flags = CTL_LLF_VERIFY; 9382 ctsio->kern_total_len = 0; 9383 } 9384 ctsio->kern_rel_offset = 0; 9385 9386 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9387 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9388 return (retval); 9389} 9390 9391int 9392ctl_report_luns(struct ctl_scsiio *ctsio) 9393{ 9394 struct scsi_report_luns *cdb; 9395 struct scsi_report_luns_data *lun_data; 9396 struct ctl_lun *lun, *request_lun; 9397 int num_luns, retval; 9398 uint32_t alloc_len, lun_datalen; 9399 int num_filled, well_known; 9400 uint32_t initidx, targ_lun_id, lun_id; 9401 9402 retval = CTL_RETVAL_COMPLETE; 9403 well_known = 0; 9404 9405 cdb = (struct scsi_report_luns *)ctsio->cdb; 9406 9407 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9408 9409 mtx_lock(&control_softc->ctl_lock); 9410 num_luns = control_softc->num_luns; 9411 mtx_unlock(&control_softc->ctl_lock); 9412 9413 switch (cdb->select_report) { 9414 case RPL_REPORT_DEFAULT: 9415 case RPL_REPORT_ALL: 9416 break; 9417 case RPL_REPORT_WELLKNOWN: 9418 well_known = 1; 9419 num_luns = 0; 9420 break; 9421 default: 9422 ctl_set_invalid_field(ctsio, 9423 /*sks_valid*/ 1, 9424 /*command*/ 1, 9425 /*field*/ 2, 9426 /*bit_valid*/ 0, 9427 /*bit*/ 0); 9428 ctl_done((union ctl_io *)ctsio); 9429 return (retval); 9430 break; /* NOTREACHED */ 9431 } 9432 9433 alloc_len = scsi_4btoul(cdb->length); 9434 /* 9435 * The initiator has to allocate at least 16 bytes for this request, 9436 * so he can at least get the header and the first LUN. Otherwise 9437 * we reject the request (per SPC-3 rev 14, section 6.21). 9438 */ 9439 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9440 sizeof(struct scsi_report_luns_lundata))) { 9441 ctl_set_invalid_field(ctsio, 9442 /*sks_valid*/ 1, 9443 /*command*/ 1, 9444 /*field*/ 6, 9445 /*bit_valid*/ 0, 9446 /*bit*/ 0); 9447 ctl_done((union ctl_io *)ctsio); 9448 return (retval); 9449 } 9450 9451 request_lun = (struct ctl_lun *) 9452 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9453 9454 lun_datalen = sizeof(*lun_data) + 9455 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9456 9457 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9458 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9459 ctsio->kern_sg_entries = 0; 9460 9461 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9462 9463 mtx_lock(&control_softc->ctl_lock); 9464 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9465 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9466 if (lun_id >= CTL_MAX_LUNS) 9467 continue; 9468 lun = control_softc->ctl_luns[lun_id]; 9469 if (lun == NULL) 9470 continue; 9471 9472 if (targ_lun_id <= 0xff) { 9473 /* 9474 * Peripheral addressing method, bus number 0. 9475 */ 9476 lun_data->luns[num_filled].lundata[0] = 9477 RPL_LUNDATA_ATYP_PERIPH; 9478 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9479 num_filled++; 9480 } else if (targ_lun_id <= 0x3fff) { 9481 /* 9482 * Flat addressing method. 9483 */ 9484 lun_data->luns[num_filled].lundata[0] = 9485 RPL_LUNDATA_ATYP_FLAT | 9486 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9487#ifdef OLDCTLHEADERS 9488 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9489 (targ_lun_id & SRLD_BUS_LUN_MASK); 9490#endif 9491 lun_data->luns[num_filled].lundata[1] = 9492#ifdef OLDCTLHEADERS 9493 targ_lun_id >> SRLD_BUS_LUN_BITS; 9494#endif 9495 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9496 num_filled++; 9497 } else { 9498 printf("ctl_report_luns: bogus LUN number %jd, " 9499 "skipping\n", (intmax_t)targ_lun_id); 9500 } 9501 /* 9502 * According to SPC-3, rev 14 section 6.21: 9503 * 9504 * "The execution of a REPORT LUNS command to any valid and 9505 * installed logical unit shall clear the REPORTED LUNS DATA 9506 * HAS CHANGED unit attention condition for all logical 9507 * units of that target with respect to the requesting 9508 * initiator. A valid and installed logical unit is one 9509 * having a PERIPHERAL QUALIFIER of 000b in the standard 9510 * INQUIRY data (see 6.4.2)." 9511 * 9512 * If request_lun is NULL, the LUN this report luns command 9513 * was issued to is either disabled or doesn't exist. In that 9514 * case, we shouldn't clear any pending lun change unit 9515 * attention. 9516 */ 9517 if (request_lun != NULL) { 9518 mtx_lock(&lun->lun_lock); 9519 lun->pending_sense[initidx].ua_pending &= 9520 ~CTL_UA_LUN_CHANGE; 9521 mtx_unlock(&lun->lun_lock); 9522 } 9523 } 9524 mtx_unlock(&control_softc->ctl_lock); 9525 9526 /* 9527 * It's quite possible that we've returned fewer LUNs than we allocated 9528 * space for. Trim it. 9529 */ 9530 lun_datalen = sizeof(*lun_data) + 9531 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9532 9533 if (lun_datalen < alloc_len) { 9534 ctsio->residual = alloc_len - lun_datalen; 9535 ctsio->kern_data_len = lun_datalen; 9536 ctsio->kern_total_len = lun_datalen; 9537 } else { 9538 ctsio->residual = 0; 9539 ctsio->kern_data_len = alloc_len; 9540 ctsio->kern_total_len = alloc_len; 9541 } 9542 ctsio->kern_data_resid = 0; 9543 ctsio->kern_rel_offset = 0; 9544 ctsio->kern_sg_entries = 0; 9545 9546 /* 9547 * We set this to the actual data length, regardless of how much 9548 * space we actually have to return results. If the user looks at 9549 * this value, he'll know whether or not he allocated enough space 9550 * and reissue the command if necessary. We don't support well 9551 * known logical units, so if the user asks for that, return none. 9552 */ 9553 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9554 9555 /* 9556 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9557 * this request. 9558 */ 9559 ctsio->scsi_status = SCSI_STATUS_OK; 9560 9561 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9562 ctsio->be_move_done = ctl_config_move_done; 9563 ctl_datamove((union ctl_io *)ctsio); 9564 9565 return (retval); 9566} 9567 9568int 9569ctl_request_sense(struct ctl_scsiio *ctsio) 9570{ 9571 struct scsi_request_sense *cdb; 9572 struct scsi_sense_data *sense_ptr; 9573 struct ctl_lun *lun; 9574 uint32_t initidx; 9575 int have_error; 9576 scsi_sense_data_type sense_format; 9577 9578 cdb = (struct scsi_request_sense *)ctsio->cdb; 9579 9580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9581 9582 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9583 9584 /* 9585 * Determine which sense format the user wants. 9586 */ 9587 if (cdb->byte2 & SRS_DESC) 9588 sense_format = SSD_TYPE_DESC; 9589 else 9590 sense_format = SSD_TYPE_FIXED; 9591 9592 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9593 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9594 ctsio->kern_sg_entries = 0; 9595 9596 /* 9597 * struct scsi_sense_data, which is currently set to 256 bytes, is 9598 * larger than the largest allowed value for the length field in the 9599 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9600 */ 9601 ctsio->residual = 0; 9602 ctsio->kern_data_len = cdb->length; 9603 ctsio->kern_total_len = cdb->length; 9604 9605 ctsio->kern_data_resid = 0; 9606 ctsio->kern_rel_offset = 0; 9607 ctsio->kern_sg_entries = 0; 9608 9609 /* 9610 * If we don't have a LUN, we don't have any pending sense. 9611 */ 9612 if (lun == NULL) 9613 goto no_sense; 9614 9615 have_error = 0; 9616 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9617 /* 9618 * Check for pending sense, and then for pending unit attentions. 9619 * Pending sense gets returned first, then pending unit attentions. 9620 */ 9621 mtx_lock(&lun->lun_lock); 9622 if (ctl_is_set(lun->have_ca, initidx)) { 9623 scsi_sense_data_type stored_format; 9624 9625 /* 9626 * Check to see which sense format was used for the stored 9627 * sense data. 9628 */ 9629 stored_format = scsi_sense_type( 9630 &lun->pending_sense[initidx].sense); 9631 9632 /* 9633 * If the user requested a different sense format than the 9634 * one we stored, then we need to convert it to the other 9635 * format. If we're going from descriptor to fixed format 9636 * sense data, we may lose things in translation, depending 9637 * on what options were used. 9638 * 9639 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9640 * for some reason we'll just copy it out as-is. 9641 */ 9642 if ((stored_format == SSD_TYPE_FIXED) 9643 && (sense_format == SSD_TYPE_DESC)) 9644 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9645 &lun->pending_sense[initidx].sense, 9646 (struct scsi_sense_data_desc *)sense_ptr); 9647 else if ((stored_format == SSD_TYPE_DESC) 9648 && (sense_format == SSD_TYPE_FIXED)) 9649 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9650 &lun->pending_sense[initidx].sense, 9651 (struct scsi_sense_data_fixed *)sense_ptr); 9652 else 9653 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9654 ctl_min(sizeof(*sense_ptr), 9655 sizeof(lun->pending_sense[initidx].sense))); 9656 9657 ctl_clear_mask(lun->have_ca, initidx); 9658 have_error = 1; 9659 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9660 ctl_ua_type ua_type; 9661 9662 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9663 sense_ptr, sense_format); 9664 if (ua_type != CTL_UA_NONE) { 9665 have_error = 1; 9666 /* We're reporting this UA, so clear it */ 9667 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9668 } 9669 } 9670 mtx_unlock(&lun->lun_lock); 9671 9672 /* 9673 * We already have a pending error, return it. 9674 */ 9675 if (have_error != 0) { 9676 /* 9677 * We report the SCSI status as OK, since the status of the 9678 * request sense command itself is OK. 9679 */ 9680 ctsio->scsi_status = SCSI_STATUS_OK; 9681 9682 /* 9683 * We report 0 for the sense length, because we aren't doing 9684 * autosense in this case. We're reporting sense as 9685 * parameter data. 9686 */ 9687 ctsio->sense_len = 0; 9688 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9689 ctsio->be_move_done = ctl_config_move_done; 9690 ctl_datamove((union ctl_io *)ctsio); 9691 9692 return (CTL_RETVAL_COMPLETE); 9693 } 9694 9695no_sense: 9696 9697 /* 9698 * No sense information to report, so we report that everything is 9699 * okay. 9700 */ 9701 ctl_set_sense_data(sense_ptr, 9702 lun, 9703 sense_format, 9704 /*current_error*/ 1, 9705 /*sense_key*/ SSD_KEY_NO_SENSE, 9706 /*asc*/ 0x00, 9707 /*ascq*/ 0x00, 9708 SSD_ELEM_NONE); 9709 9710 ctsio->scsi_status = SCSI_STATUS_OK; 9711 9712 /* 9713 * We report 0 for the sense length, because we aren't doing 9714 * autosense in this case. We're reporting sense as parameter data. 9715 */ 9716 ctsio->sense_len = 0; 9717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9718 ctsio->be_move_done = ctl_config_move_done; 9719 ctl_datamove((union ctl_io *)ctsio); 9720 9721 return (CTL_RETVAL_COMPLETE); 9722} 9723 9724int 9725ctl_tur(struct ctl_scsiio *ctsio) 9726{ 9727 struct ctl_lun *lun; 9728 9729 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9730 9731 CTL_DEBUG_PRINT(("ctl_tur\n")); 9732 9733 if (lun == NULL) 9734 return (EINVAL); 9735 9736 ctsio->scsi_status = SCSI_STATUS_OK; 9737 ctsio->io_hdr.status = CTL_SUCCESS; 9738 9739 ctl_done((union ctl_io *)ctsio); 9740 9741 return (CTL_RETVAL_COMPLETE); 9742} 9743 9744#ifdef notyet 9745static int 9746ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9747{ 9748 9749} 9750#endif 9751 9752static int 9753ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9754{ 9755 struct scsi_vpd_supported_pages *pages; 9756 int sup_page_size; 9757 struct ctl_lun *lun; 9758 9759 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9760 9761 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9762 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9763 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9764 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9765 ctsio->kern_sg_entries = 0; 9766 9767 if (sup_page_size < alloc_len) { 9768 ctsio->residual = alloc_len - sup_page_size; 9769 ctsio->kern_data_len = sup_page_size; 9770 ctsio->kern_total_len = sup_page_size; 9771 } else { 9772 ctsio->residual = 0; 9773 ctsio->kern_data_len = alloc_len; 9774 ctsio->kern_total_len = alloc_len; 9775 } 9776 ctsio->kern_data_resid = 0; 9777 ctsio->kern_rel_offset = 0; 9778 ctsio->kern_sg_entries = 0; 9779 9780 /* 9781 * The control device is always connected. The disk device, on the 9782 * other hand, may not be online all the time. Need to change this 9783 * to figure out whether the disk device is actually online or not. 9784 */ 9785 if (lun != NULL) 9786 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9787 lun->be_lun->lun_type; 9788 else 9789 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9790 9791 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9792 /* Supported VPD pages */ 9793 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9794 /* Serial Number */ 9795 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9796 /* Device Identification */ 9797 pages->page_list[2] = SVPD_DEVICE_ID; 9798 /* SCSI Ports */ 9799 pages->page_list[3] = SVPD_SCSI_PORTS; 9800 /* Block limits */ 9801 pages->page_list[4] = SVPD_BLOCK_LIMITS; 9802 /* Logical Block Provisioning */ 9803 pages->page_list[5] = SVPD_LBP; 9804 9805 ctsio->scsi_status = SCSI_STATUS_OK; 9806 9807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9808 ctsio->be_move_done = ctl_config_move_done; 9809 ctl_datamove((union ctl_io *)ctsio); 9810 9811 return (CTL_RETVAL_COMPLETE); 9812} 9813 9814static int 9815ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9816{ 9817 struct scsi_vpd_unit_serial_number *sn_ptr; 9818 struct ctl_lun *lun; 9819 9820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9821 9822 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9823 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9824 ctsio->kern_sg_entries = 0; 9825 9826 if (sizeof(*sn_ptr) < alloc_len) { 9827 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9828 ctsio->kern_data_len = sizeof(*sn_ptr); 9829 ctsio->kern_total_len = sizeof(*sn_ptr); 9830 } else { 9831 ctsio->residual = 0; 9832 ctsio->kern_data_len = alloc_len; 9833 ctsio->kern_total_len = alloc_len; 9834 } 9835 ctsio->kern_data_resid = 0; 9836 ctsio->kern_rel_offset = 0; 9837 ctsio->kern_sg_entries = 0; 9838 9839 /* 9840 * The control device is always connected. The disk device, on the 9841 * other hand, may not be online all the time. Need to change this 9842 * to figure out whether the disk device is actually online or not. 9843 */ 9844 if (lun != NULL) 9845 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9846 lun->be_lun->lun_type; 9847 else 9848 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9849 9850 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9851 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9852 /* 9853 * If we don't have a LUN, we just leave the serial number as 9854 * all spaces. 9855 */ 9856 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9857 if (lun != NULL) { 9858 strncpy((char *)sn_ptr->serial_num, 9859 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9860 } 9861 ctsio->scsi_status = SCSI_STATUS_OK; 9862 9863 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9864 ctsio->be_move_done = ctl_config_move_done; 9865 ctl_datamove((union ctl_io *)ctsio); 9866 9867 return (CTL_RETVAL_COMPLETE); 9868} 9869 9870 9871static int 9872ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9873{ 9874 struct scsi_vpd_device_id *devid_ptr; 9875 struct scsi_vpd_id_descriptor *desc; 9876 struct ctl_softc *ctl_softc; 9877 struct ctl_lun *lun; 9878 struct ctl_port *port; 9879 int data_len; 9880 uint8_t proto; 9881 9882 ctl_softc = control_softc; 9883 9884 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9885 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9886 9887 data_len = sizeof(struct scsi_vpd_device_id) + 9888 sizeof(struct scsi_vpd_id_descriptor) + 9889 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9890 sizeof(struct scsi_vpd_id_descriptor) + 9891 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9892 if (lun && lun->lun_devid) 9893 data_len += lun->lun_devid->len; 9894 if (port->port_devid) 9895 data_len += port->port_devid->len; 9896 if (port->target_devid) 9897 data_len += port->target_devid->len; 9898 9899 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9900 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9901 ctsio->kern_sg_entries = 0; 9902 9903 if (data_len < alloc_len) { 9904 ctsio->residual = alloc_len - data_len; 9905 ctsio->kern_data_len = data_len; 9906 ctsio->kern_total_len = data_len; 9907 } else { 9908 ctsio->residual = 0; 9909 ctsio->kern_data_len = alloc_len; 9910 ctsio->kern_total_len = alloc_len; 9911 } 9912 ctsio->kern_data_resid = 0; 9913 ctsio->kern_rel_offset = 0; 9914 ctsio->kern_sg_entries = 0; 9915 9916 /* 9917 * The control device is always connected. The disk device, on the 9918 * other hand, may not be online all the time. 9919 */ 9920 if (lun != NULL) 9921 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9922 lun->be_lun->lun_type; 9923 else 9924 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9925 devid_ptr->page_code = SVPD_DEVICE_ID; 9926 scsi_ulto2b(data_len - 4, devid_ptr->length); 9927 9928 if (port->port_type == CTL_PORT_FC) 9929 proto = SCSI_PROTO_FC << 4; 9930 else if (port->port_type == CTL_PORT_ISCSI) 9931 proto = SCSI_PROTO_ISCSI << 4; 9932 else 9933 proto = SCSI_PROTO_SPI << 4; 9934 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9935 9936 /* 9937 * We're using a LUN association here. i.e., this device ID is a 9938 * per-LUN identifier. 9939 */ 9940 if (lun && lun->lun_devid) { 9941 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9942 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9943 lun->lun_devid->len); 9944 } 9945 9946 /* 9947 * This is for the WWPN which is a port association. 9948 */ 9949 if (port->port_devid) { 9950 memcpy(desc, port->port_devid->data, port->port_devid->len); 9951 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9952 port->port_devid->len); 9953 } 9954 9955 /* 9956 * This is for the Relative Target Port(type 4h) identifier 9957 */ 9958 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9959 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9960 SVPD_ID_TYPE_RELTARG; 9961 desc->length = 4; 9962 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9963 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9964 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9965 9966 /* 9967 * This is for the Target Port Group(type 5h) identifier 9968 */ 9969 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9970 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9971 SVPD_ID_TYPE_TPORTGRP; 9972 desc->length = 4; 9973 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9974 &desc->identifier[2]); 9975 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9976 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9977 9978 /* 9979 * This is for the Target identifier 9980 */ 9981 if (port->target_devid) { 9982 memcpy(desc, port->target_devid->data, port->target_devid->len); 9983 } 9984 9985 ctsio->scsi_status = SCSI_STATUS_OK; 9986 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9987 ctsio->be_move_done = ctl_config_move_done; 9988 ctl_datamove((union ctl_io *)ctsio); 9989 9990 return (CTL_RETVAL_COMPLETE); 9991} 9992 9993static int 9994ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9995{ 9996 struct ctl_softc *softc = control_softc; 9997 struct scsi_vpd_scsi_ports *sp; 9998 struct scsi_vpd_port_designation *pd; 9999 struct scsi_vpd_port_designation_cont *pdc; 10000 struct ctl_lun *lun; 10001 struct ctl_port *port; 10002 int data_len, num_target_ports, id_len, g, pg, p; 10003 int num_target_port_groups, single; 10004 10005 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10006 10007 single = ctl_is_single; 10008 if (single) 10009 num_target_port_groups = 1; 10010 else 10011 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10012 num_target_ports = 0; 10013 id_len = 0; 10014 mtx_lock(&softc->ctl_lock); 10015 STAILQ_FOREACH(port, &softc->port_list, links) { 10016 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10017 continue; 10018 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10019 CTL_MAX_LUNS) 10020 continue; 10021 num_target_ports++; 10022 if (port->port_devid) 10023 id_len += port->port_devid->len; 10024 } 10025 mtx_unlock(&softc->ctl_lock); 10026 10027 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10028 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10029 sizeof(struct scsi_vpd_port_designation_cont)) + id_len; 10030 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10031 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10032 ctsio->kern_sg_entries = 0; 10033 10034 if (data_len < alloc_len) { 10035 ctsio->residual = alloc_len - data_len; 10036 ctsio->kern_data_len = data_len; 10037 ctsio->kern_total_len = data_len; 10038 } else { 10039 ctsio->residual = 0; 10040 ctsio->kern_data_len = alloc_len; 10041 ctsio->kern_total_len = alloc_len; 10042 } 10043 ctsio->kern_data_resid = 0; 10044 ctsio->kern_rel_offset = 0; 10045 ctsio->kern_sg_entries = 0; 10046 10047 /* 10048 * The control device is always connected. The disk device, on the 10049 * other hand, may not be online all the time. Need to change this 10050 * to figure out whether the disk device is actually online or not. 10051 */ 10052 if (lun != NULL) 10053 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10054 lun->be_lun->lun_type; 10055 else 10056 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10057 10058 sp->page_code = SVPD_SCSI_PORTS; 10059 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10060 sp->page_length); 10061 pd = &sp->design[0]; 10062 10063 mtx_lock(&softc->ctl_lock); 10064 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10065 pg = 0; 10066 else 10067 pg = 1; 10068 for (g = 0; g < num_target_port_groups; g++) { 10069 STAILQ_FOREACH(port, &softc->port_list, links) { 10070 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10071 continue; 10072 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10073 CTL_MAX_LUNS) 10074 continue; 10075 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10076 scsi_ulto2b(p, pd->relative_port_id); 10077 scsi_ulto2b(0, pd->initiator_transportid_length); 10078 pdc = (struct scsi_vpd_port_designation_cont *) 10079 &pd->initiator_transportid[0]; 10080 if (port->port_devid && g == pg) { 10081 id_len = port->port_devid->len; 10082 scsi_ulto2b(port->port_devid->len, 10083 pdc->target_port_descriptors_length); 10084 memcpy(pdc->target_port_descriptors, 10085 port->port_devid->data, port->port_devid->len); 10086 } else { 10087 id_len = 0; 10088 scsi_ulto2b(0, pdc->target_port_descriptors_length); 10089 } 10090 pd = (struct scsi_vpd_port_designation *) 10091 ((uint8_t *)pdc->target_port_descriptors + id_len); 10092 } 10093 } 10094 mtx_unlock(&softc->ctl_lock); 10095 10096 ctsio->scsi_status = SCSI_STATUS_OK; 10097 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10098 ctsio->be_move_done = ctl_config_move_done; 10099 ctl_datamove((union ctl_io *)ctsio); 10100 10101 return (CTL_RETVAL_COMPLETE); 10102} 10103 10104static int 10105ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10106{ 10107 struct scsi_vpd_block_limits *bl_ptr; 10108 struct ctl_lun *lun; 10109 int bs; 10110 10111 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10112 bs = lun->be_lun->blocksize; 10113 10114 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10115 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10116 ctsio->kern_sg_entries = 0; 10117 10118 if (sizeof(*bl_ptr) < alloc_len) { 10119 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10120 ctsio->kern_data_len = sizeof(*bl_ptr); 10121 ctsio->kern_total_len = sizeof(*bl_ptr); 10122 } else { 10123 ctsio->residual = 0; 10124 ctsio->kern_data_len = alloc_len; 10125 ctsio->kern_total_len = alloc_len; 10126 } 10127 ctsio->kern_data_resid = 0; 10128 ctsio->kern_rel_offset = 0; 10129 ctsio->kern_sg_entries = 0; 10130 10131 /* 10132 * The control device is always connected. The disk device, on the 10133 * other hand, may not be online all the time. Need to change this 10134 * to figure out whether the disk device is actually online or not. 10135 */ 10136 if (lun != NULL) 10137 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10138 lun->be_lun->lun_type; 10139 else 10140 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10141 10142 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10143 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10144 bl_ptr->max_cmp_write_len = 0xff; 10145 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10146 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10147 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10148 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10149 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10150 } 10151 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10152 10153 ctsio->scsi_status = SCSI_STATUS_OK; 10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10155 ctsio->be_move_done = ctl_config_move_done; 10156 ctl_datamove((union ctl_io *)ctsio); 10157 10158 return (CTL_RETVAL_COMPLETE); 10159} 10160 10161static int 10162ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10163{ 10164 struct scsi_vpd_logical_block_prov *lbp_ptr; 10165 struct ctl_lun *lun; 10166 int bs; 10167 10168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10169 bs = lun->be_lun->blocksize; 10170 10171 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10172 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10173 ctsio->kern_sg_entries = 0; 10174 10175 if (sizeof(*lbp_ptr) < alloc_len) { 10176 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10177 ctsio->kern_data_len = sizeof(*lbp_ptr); 10178 ctsio->kern_total_len = sizeof(*lbp_ptr); 10179 } else { 10180 ctsio->residual = 0; 10181 ctsio->kern_data_len = alloc_len; 10182 ctsio->kern_total_len = alloc_len; 10183 } 10184 ctsio->kern_data_resid = 0; 10185 ctsio->kern_rel_offset = 0; 10186 ctsio->kern_sg_entries = 0; 10187 10188 /* 10189 * The control device is always connected. The disk device, on the 10190 * other hand, may not be online all the time. Need to change this 10191 * to figure out whether the disk device is actually online or not. 10192 */ 10193 if (lun != NULL) 10194 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10195 lun->be_lun->lun_type; 10196 else 10197 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10198 10199 lbp_ptr->page_code = SVPD_LBP; 10200 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10201 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10202 10203 ctsio->scsi_status = SCSI_STATUS_OK; 10204 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10205 ctsio->be_move_done = ctl_config_move_done; 10206 ctl_datamove((union ctl_io *)ctsio); 10207 10208 return (CTL_RETVAL_COMPLETE); 10209} 10210 10211static int 10212ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10213{ 10214 struct scsi_inquiry *cdb; 10215 struct ctl_lun *lun; 10216 int alloc_len, retval; 10217 10218 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10219 cdb = (struct scsi_inquiry *)ctsio->cdb; 10220 10221 retval = CTL_RETVAL_COMPLETE; 10222 10223 alloc_len = scsi_2btoul(cdb->length); 10224 10225 switch (cdb->page_code) { 10226 case SVPD_SUPPORTED_PAGES: 10227 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10228 break; 10229 case SVPD_UNIT_SERIAL_NUMBER: 10230 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10231 break; 10232 case SVPD_DEVICE_ID: 10233 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10234 break; 10235 case SVPD_SCSI_PORTS: 10236 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10237 break; 10238 case SVPD_BLOCK_LIMITS: 10239 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10240 break; 10241 case SVPD_LBP: 10242 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10243 break; 10244 default: 10245 ctl_set_invalid_field(ctsio, 10246 /*sks_valid*/ 1, 10247 /*command*/ 1, 10248 /*field*/ 2, 10249 /*bit_valid*/ 0, 10250 /*bit*/ 0); 10251 ctl_done((union ctl_io *)ctsio); 10252 retval = CTL_RETVAL_COMPLETE; 10253 break; 10254 } 10255 10256 return (retval); 10257} 10258 10259static int 10260ctl_inquiry_std(struct ctl_scsiio *ctsio) 10261{ 10262 struct scsi_inquiry_data *inq_ptr; 10263 struct scsi_inquiry *cdb; 10264 struct ctl_softc *ctl_softc; 10265 struct ctl_lun *lun; 10266 char *val; 10267 uint32_t alloc_len; 10268 int is_fc; 10269 10270 ctl_softc = control_softc; 10271 10272 /* 10273 * Figure out whether we're talking to a Fibre Channel port or not. 10274 * We treat the ioctl front end, and any SCSI adapters, as packetized 10275 * SCSI front ends. 10276 */ 10277 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 10278 CTL_PORT_FC) 10279 is_fc = 0; 10280 else 10281 is_fc = 1; 10282 10283 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10284 cdb = (struct scsi_inquiry *)ctsio->cdb; 10285 alloc_len = scsi_2btoul(cdb->length); 10286 10287 /* 10288 * We malloc the full inquiry data size here and fill it 10289 * in. If the user only asks for less, we'll give him 10290 * that much. 10291 */ 10292 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10293 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10294 ctsio->kern_sg_entries = 0; 10295 ctsio->kern_data_resid = 0; 10296 ctsio->kern_rel_offset = 0; 10297 10298 if (sizeof(*inq_ptr) < alloc_len) { 10299 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10300 ctsio->kern_data_len = sizeof(*inq_ptr); 10301 ctsio->kern_total_len = sizeof(*inq_ptr); 10302 } else { 10303 ctsio->residual = 0; 10304 ctsio->kern_data_len = alloc_len; 10305 ctsio->kern_total_len = alloc_len; 10306 } 10307 10308 /* 10309 * If we have a LUN configured, report it as connected. Otherwise, 10310 * report that it is offline or no device is supported, depending 10311 * on the value of inquiry_pq_no_lun. 10312 * 10313 * According to the spec (SPC-4 r34), the peripheral qualifier 10314 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10315 * 10316 * "A peripheral device having the specified peripheral device type 10317 * is not connected to this logical unit. However, the device 10318 * server is capable of supporting the specified peripheral device 10319 * type on this logical unit." 10320 * 10321 * According to the same spec, the peripheral qualifier 10322 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10323 * 10324 * "The device server is not capable of supporting a peripheral 10325 * device on this logical unit. For this peripheral qualifier the 10326 * peripheral device type shall be set to 1Fh. All other peripheral 10327 * device type values are reserved for this peripheral qualifier." 10328 * 10329 * Given the text, it would seem that we probably want to report that 10330 * the LUN is offline here. There is no LUN connected, but we can 10331 * support a LUN at the given LUN number. 10332 * 10333 * In the real world, though, it sounds like things are a little 10334 * different: 10335 * 10336 * - Linux, when presented with a LUN with the offline peripheral 10337 * qualifier, will create an sg driver instance for it. So when 10338 * you attach it to CTL, you wind up with a ton of sg driver 10339 * instances. (One for every LUN that Linux bothered to probe.) 10340 * Linux does this despite the fact that it issues a REPORT LUNs 10341 * to LUN 0 to get the inventory of supported LUNs. 10342 * 10343 * - There is other anecdotal evidence (from Emulex folks) about 10344 * arrays that use the offline peripheral qualifier for LUNs that 10345 * are on the "passive" path in an active/passive array. 10346 * 10347 * So the solution is provide a hopefully reasonable default 10348 * (return bad/no LUN) and allow the user to change the behavior 10349 * with a tunable/sysctl variable. 10350 */ 10351 if (lun != NULL) 10352 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10353 lun->be_lun->lun_type; 10354 else if (ctl_softc->inquiry_pq_no_lun == 0) 10355 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10356 else 10357 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10358 10359 /* RMB in byte 2 is 0 */ 10360 inq_ptr->version = SCSI_REV_SPC3; 10361 10362 /* 10363 * According to SAM-3, even if a device only supports a single 10364 * level of LUN addressing, it should still set the HISUP bit: 10365 * 10366 * 4.9.1 Logical unit numbers overview 10367 * 10368 * All logical unit number formats described in this standard are 10369 * hierarchical in structure even when only a single level in that 10370 * hierarchy is used. The HISUP bit shall be set to one in the 10371 * standard INQUIRY data (see SPC-2) when any logical unit number 10372 * format described in this standard is used. Non-hierarchical 10373 * formats are outside the scope of this standard. 10374 * 10375 * Therefore we set the HiSup bit here. 10376 * 10377 * The reponse format is 2, per SPC-3. 10378 */ 10379 inq_ptr->response_format = SID_HiSup | 2; 10380 10381 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10382 CTL_DEBUG_PRINT(("additional_length = %d\n", 10383 inq_ptr->additional_length)); 10384 10385 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10386 /* 16 bit addressing */ 10387 if (is_fc == 0) 10388 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10389 /* XXX set the SID_MultiP bit here if we're actually going to 10390 respond on multiple ports */ 10391 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10392 10393 /* 16 bit data bus, synchronous transfers */ 10394 /* XXX these flags don't apply for FC */ 10395 if (is_fc == 0) 10396 inq_ptr->flags = SID_WBus16 | SID_Sync; 10397 /* 10398 * XXX KDM do we want to support tagged queueing on the control 10399 * device at all? 10400 */ 10401 if ((lun == NULL) 10402 || (lun->be_lun->lun_type != T_PROCESSOR)) 10403 inq_ptr->flags |= SID_CmdQue; 10404 /* 10405 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10406 * We have 8 bytes for the vendor name, and 16 bytes for the device 10407 * name and 4 bytes for the revision. 10408 */ 10409 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10410 "vendor")) == NULL) { 10411 strcpy(inq_ptr->vendor, CTL_VENDOR); 10412 } else { 10413 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10414 strncpy(inq_ptr->vendor, val, 10415 min(sizeof(inq_ptr->vendor), strlen(val))); 10416 } 10417 if (lun == NULL) { 10418 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10419 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10420 switch (lun->be_lun->lun_type) { 10421 case T_DIRECT: 10422 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10423 break; 10424 case T_PROCESSOR: 10425 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10426 break; 10427 default: 10428 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10429 break; 10430 } 10431 } else { 10432 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10433 strncpy(inq_ptr->product, val, 10434 min(sizeof(inq_ptr->product), strlen(val))); 10435 } 10436 10437 /* 10438 * XXX make this a macro somewhere so it automatically gets 10439 * incremented when we make changes. 10440 */ 10441 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10442 "revision")) == NULL) { 10443 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10444 } else { 10445 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10446 strncpy(inq_ptr->revision, val, 10447 min(sizeof(inq_ptr->revision), strlen(val))); 10448 } 10449 10450 /* 10451 * For parallel SCSI, we support double transition and single 10452 * transition clocking. We also support QAS (Quick Arbitration 10453 * and Selection) and Information Unit transfers on both the 10454 * control and array devices. 10455 */ 10456 if (is_fc == 0) 10457 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10458 SID_SPI_IUS; 10459 10460 /* SAM-3 */ 10461 scsi_ulto2b(0x0060, inq_ptr->version1); 10462 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10463 scsi_ulto2b(0x0300, inq_ptr->version2); 10464 if (is_fc) { 10465 /* FCP-2 ANSI INCITS.350:2003 */ 10466 scsi_ulto2b(0x0917, inq_ptr->version3); 10467 } else { 10468 /* SPI-4 ANSI INCITS.362:200x */ 10469 scsi_ulto2b(0x0B56, inq_ptr->version3); 10470 } 10471 10472 if (lun == NULL) { 10473 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10474 scsi_ulto2b(0x0320, inq_ptr->version4); 10475 } else { 10476 switch (lun->be_lun->lun_type) { 10477 case T_DIRECT: 10478 /* 10479 * SBC-2 (no version claimed) XXX should we claim a 10480 * version? 10481 */ 10482 scsi_ulto2b(0x0320, inq_ptr->version4); 10483 break; 10484 case T_PROCESSOR: 10485 default: 10486 break; 10487 } 10488 } 10489 10490 ctsio->scsi_status = SCSI_STATUS_OK; 10491 if (ctsio->kern_data_len > 0) { 10492 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10493 ctsio->be_move_done = ctl_config_move_done; 10494 ctl_datamove((union ctl_io *)ctsio); 10495 } else { 10496 ctsio->io_hdr.status = CTL_SUCCESS; 10497 ctl_done((union ctl_io *)ctsio); 10498 } 10499 10500 return (CTL_RETVAL_COMPLETE); 10501} 10502 10503int 10504ctl_inquiry(struct ctl_scsiio *ctsio) 10505{ 10506 struct scsi_inquiry *cdb; 10507 int retval; 10508 10509 cdb = (struct scsi_inquiry *)ctsio->cdb; 10510 10511 retval = 0; 10512 10513 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10514 10515 /* 10516 * Right now, we don't support the CmdDt inquiry information. 10517 * This would be nice to support in the future. When we do 10518 * support it, we should change this test so that it checks to make 10519 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10520 */ 10521#ifdef notyet 10522 if (((cdb->byte2 & SI_EVPD) 10523 && (cdb->byte2 & SI_CMDDT))) 10524#endif 10525 if (cdb->byte2 & SI_CMDDT) { 10526 /* 10527 * Point to the SI_CMDDT bit. We might change this 10528 * when we support SI_CMDDT, but since both bits would be 10529 * "wrong", this should probably just stay as-is then. 10530 */ 10531 ctl_set_invalid_field(ctsio, 10532 /*sks_valid*/ 1, 10533 /*command*/ 1, 10534 /*field*/ 1, 10535 /*bit_valid*/ 1, 10536 /*bit*/ 1); 10537 ctl_done((union ctl_io *)ctsio); 10538 return (CTL_RETVAL_COMPLETE); 10539 } 10540 if (cdb->byte2 & SI_EVPD) 10541 retval = ctl_inquiry_evpd(ctsio); 10542#ifdef notyet 10543 else if (cdb->byte2 & SI_CMDDT) 10544 retval = ctl_inquiry_cmddt(ctsio); 10545#endif 10546 else 10547 retval = ctl_inquiry_std(ctsio); 10548 10549 return (retval); 10550} 10551 10552/* 10553 * For known CDB types, parse the LBA and length. 10554 */ 10555static int 10556ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10557{ 10558 if (io->io_hdr.io_type != CTL_IO_SCSI) 10559 return (1); 10560 10561 switch (io->scsiio.cdb[0]) { 10562 case COMPARE_AND_WRITE: { 10563 struct scsi_compare_and_write *cdb; 10564 10565 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10566 10567 *lba = scsi_8btou64(cdb->addr); 10568 *len = cdb->length; 10569 break; 10570 } 10571 case READ_6: 10572 case WRITE_6: { 10573 struct scsi_rw_6 *cdb; 10574 10575 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10576 10577 *lba = scsi_3btoul(cdb->addr); 10578 /* only 5 bits are valid in the most significant address byte */ 10579 *lba &= 0x1fffff; 10580 *len = cdb->length; 10581 break; 10582 } 10583 case READ_10: 10584 case WRITE_10: { 10585 struct scsi_rw_10 *cdb; 10586 10587 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10588 10589 *lba = scsi_4btoul(cdb->addr); 10590 *len = scsi_2btoul(cdb->length); 10591 break; 10592 } 10593 case WRITE_VERIFY_10: { 10594 struct scsi_write_verify_10 *cdb; 10595 10596 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10597 10598 *lba = scsi_4btoul(cdb->addr); 10599 *len = scsi_2btoul(cdb->length); 10600 break; 10601 } 10602 case READ_12: 10603 case WRITE_12: { 10604 struct scsi_rw_12 *cdb; 10605 10606 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10607 10608 *lba = scsi_4btoul(cdb->addr); 10609 *len = scsi_4btoul(cdb->length); 10610 break; 10611 } 10612 case WRITE_VERIFY_12: { 10613 struct scsi_write_verify_12 *cdb; 10614 10615 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10616 10617 *lba = scsi_4btoul(cdb->addr); 10618 *len = scsi_4btoul(cdb->length); 10619 break; 10620 } 10621 case READ_16: 10622 case WRITE_16: { 10623 struct scsi_rw_16 *cdb; 10624 10625 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10626 10627 *lba = scsi_8btou64(cdb->addr); 10628 *len = scsi_4btoul(cdb->length); 10629 break; 10630 } 10631 case WRITE_VERIFY_16: { 10632 struct scsi_write_verify_16 *cdb; 10633 10634 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10635 10636 10637 *lba = scsi_8btou64(cdb->addr); 10638 *len = scsi_4btoul(cdb->length); 10639 break; 10640 } 10641 case WRITE_SAME_10: { 10642 struct scsi_write_same_10 *cdb; 10643 10644 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10645 10646 *lba = scsi_4btoul(cdb->addr); 10647 *len = scsi_2btoul(cdb->length); 10648 break; 10649 } 10650 case WRITE_SAME_16: { 10651 struct scsi_write_same_16 *cdb; 10652 10653 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10654 10655 *lba = scsi_8btou64(cdb->addr); 10656 *len = scsi_4btoul(cdb->length); 10657 break; 10658 } 10659 case VERIFY_10: { 10660 struct scsi_verify_10 *cdb; 10661 10662 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10663 10664 *lba = scsi_4btoul(cdb->addr); 10665 *len = scsi_2btoul(cdb->length); 10666 break; 10667 } 10668 case VERIFY_12: { 10669 struct scsi_verify_12 *cdb; 10670 10671 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10672 10673 *lba = scsi_4btoul(cdb->addr); 10674 *len = scsi_4btoul(cdb->length); 10675 break; 10676 } 10677 case VERIFY_16: { 10678 struct scsi_verify_16 *cdb; 10679 10680 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10681 10682 *lba = scsi_8btou64(cdb->addr); 10683 *len = scsi_4btoul(cdb->length); 10684 break; 10685 } 10686 default: 10687 return (1); 10688 break; /* NOTREACHED */ 10689 } 10690 10691 return (0); 10692} 10693 10694static ctl_action 10695ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10696{ 10697 uint64_t endlba1, endlba2; 10698 10699 endlba1 = lba1 + len1 - 1; 10700 endlba2 = lba2 + len2 - 1; 10701 10702 if ((endlba1 < lba2) 10703 || (endlba2 < lba1)) 10704 return (CTL_ACTION_PASS); 10705 else 10706 return (CTL_ACTION_BLOCK); 10707} 10708 10709static ctl_action 10710ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10711{ 10712 uint64_t lba1, lba2; 10713 uint32_t len1, len2; 10714 int retval; 10715 10716 retval = ctl_get_lba_len(io1, &lba1, &len1); 10717 if (retval != 0) 10718 return (CTL_ACTION_ERROR); 10719 10720 retval = ctl_get_lba_len(io2, &lba2, &len2); 10721 if (retval != 0) 10722 return (CTL_ACTION_ERROR); 10723 10724 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10725} 10726 10727static ctl_action 10728ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10729{ 10730 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10731 ctl_serialize_action *serialize_row; 10732 10733 /* 10734 * The initiator attempted multiple untagged commands at the same 10735 * time. Can't do that. 10736 */ 10737 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10738 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10739 && ((pending_io->io_hdr.nexus.targ_port == 10740 ooa_io->io_hdr.nexus.targ_port) 10741 && (pending_io->io_hdr.nexus.initid.id == 10742 ooa_io->io_hdr.nexus.initid.id)) 10743 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10744 return (CTL_ACTION_OVERLAP); 10745 10746 /* 10747 * The initiator attempted to send multiple tagged commands with 10748 * the same ID. (It's fine if different initiators have the same 10749 * tag ID.) 10750 * 10751 * Even if all of those conditions are true, we don't kill the I/O 10752 * if the command ahead of us has been aborted. We won't end up 10753 * sending it to the FETD, and it's perfectly legal to resend a 10754 * command with the same tag number as long as the previous 10755 * instance of this tag number has been aborted somehow. 10756 */ 10757 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10758 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10759 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10760 && ((pending_io->io_hdr.nexus.targ_port == 10761 ooa_io->io_hdr.nexus.targ_port) 10762 && (pending_io->io_hdr.nexus.initid.id == 10763 ooa_io->io_hdr.nexus.initid.id)) 10764 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10765 return (CTL_ACTION_OVERLAP_TAG); 10766 10767 /* 10768 * If we get a head of queue tag, SAM-3 says that we should 10769 * immediately execute it. 10770 * 10771 * What happens if this command would normally block for some other 10772 * reason? e.g. a request sense with a head of queue tag 10773 * immediately after a write. Normally that would block, but this 10774 * will result in its getting executed immediately... 10775 * 10776 * We currently return "pass" instead of "skip", so we'll end up 10777 * going through the rest of the queue to check for overlapped tags. 10778 * 10779 * XXX KDM check for other types of blockage first?? 10780 */ 10781 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10782 return (CTL_ACTION_PASS); 10783 10784 /* 10785 * Ordered tags have to block until all items ahead of them 10786 * have completed. If we get called with an ordered tag, we always 10787 * block, if something else is ahead of us in the queue. 10788 */ 10789 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10790 return (CTL_ACTION_BLOCK); 10791 10792 /* 10793 * Simple tags get blocked until all head of queue and ordered tags 10794 * ahead of them have completed. I'm lumping untagged commands in 10795 * with simple tags here. XXX KDM is that the right thing to do? 10796 */ 10797 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10798 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10799 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10800 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10801 return (CTL_ACTION_BLOCK); 10802 10803 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10804 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10805 10806 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10807 10808 switch (serialize_row[pending_entry->seridx]) { 10809 case CTL_SER_BLOCK: 10810 return (CTL_ACTION_BLOCK); 10811 break; /* NOTREACHED */ 10812 case CTL_SER_EXTENT: 10813 return (ctl_extent_check(pending_io, ooa_io)); 10814 break; /* NOTREACHED */ 10815 case CTL_SER_PASS: 10816 return (CTL_ACTION_PASS); 10817 break; /* NOTREACHED */ 10818 case CTL_SER_SKIP: 10819 return (CTL_ACTION_SKIP); 10820 break; 10821 default: 10822 panic("invalid serialization value %d", 10823 serialize_row[pending_entry->seridx]); 10824 break; /* NOTREACHED */ 10825 } 10826 10827 return (CTL_ACTION_ERROR); 10828} 10829 10830/* 10831 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10832 * Assumptions: 10833 * - pending_io is generally either incoming, or on the blocked queue 10834 * - starting I/O is the I/O we want to start the check with. 10835 */ 10836static ctl_action 10837ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10838 union ctl_io *starting_io) 10839{ 10840 union ctl_io *ooa_io; 10841 ctl_action action; 10842 10843 mtx_assert(&lun->lun_lock, MA_OWNED); 10844 10845 /* 10846 * Run back along the OOA queue, starting with the current 10847 * blocked I/O and going through every I/O before it on the 10848 * queue. If starting_io is NULL, we'll just end up returning 10849 * CTL_ACTION_PASS. 10850 */ 10851 for (ooa_io = starting_io; ooa_io != NULL; 10852 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10853 ooa_links)){ 10854 10855 /* 10856 * This routine just checks to see whether 10857 * cur_blocked is blocked by ooa_io, which is ahead 10858 * of it in the queue. It doesn't queue/dequeue 10859 * cur_blocked. 10860 */ 10861 action = ctl_check_for_blockage(pending_io, ooa_io); 10862 switch (action) { 10863 case CTL_ACTION_BLOCK: 10864 case CTL_ACTION_OVERLAP: 10865 case CTL_ACTION_OVERLAP_TAG: 10866 case CTL_ACTION_SKIP: 10867 case CTL_ACTION_ERROR: 10868 return (action); 10869 break; /* NOTREACHED */ 10870 case CTL_ACTION_PASS: 10871 break; 10872 default: 10873 panic("invalid action %d", action); 10874 break; /* NOTREACHED */ 10875 } 10876 } 10877 10878 return (CTL_ACTION_PASS); 10879} 10880 10881/* 10882 * Assumptions: 10883 * - An I/O has just completed, and has been removed from the per-LUN OOA 10884 * queue, so some items on the blocked queue may now be unblocked. 10885 */ 10886static int 10887ctl_check_blocked(struct ctl_lun *lun) 10888{ 10889 union ctl_io *cur_blocked, *next_blocked; 10890 10891 mtx_assert(&lun->lun_lock, MA_OWNED); 10892 10893 /* 10894 * Run forward from the head of the blocked queue, checking each 10895 * entry against the I/Os prior to it on the OOA queue to see if 10896 * there is still any blockage. 10897 * 10898 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10899 * with our removing a variable on it while it is traversing the 10900 * list. 10901 */ 10902 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10903 cur_blocked != NULL; cur_blocked = next_blocked) { 10904 union ctl_io *prev_ooa; 10905 ctl_action action; 10906 10907 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10908 blocked_links); 10909 10910 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10911 ctl_ooaq, ooa_links); 10912 10913 /* 10914 * If cur_blocked happens to be the first item in the OOA 10915 * queue now, prev_ooa will be NULL, and the action 10916 * returned will just be CTL_ACTION_PASS. 10917 */ 10918 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10919 10920 switch (action) { 10921 case CTL_ACTION_BLOCK: 10922 /* Nothing to do here, still blocked */ 10923 break; 10924 case CTL_ACTION_OVERLAP: 10925 case CTL_ACTION_OVERLAP_TAG: 10926 /* 10927 * This shouldn't happen! In theory we've already 10928 * checked this command for overlap... 10929 */ 10930 break; 10931 case CTL_ACTION_PASS: 10932 case CTL_ACTION_SKIP: { 10933 struct ctl_softc *softc; 10934 const struct ctl_cmd_entry *entry; 10935 uint32_t initidx; 10936 int isc_retval; 10937 10938 /* 10939 * The skip case shouldn't happen, this transaction 10940 * should have never made it onto the blocked queue. 10941 */ 10942 /* 10943 * This I/O is no longer blocked, we can remove it 10944 * from the blocked queue. Since this is a TAILQ 10945 * (doubly linked list), we can do O(1) removals 10946 * from any place on the list. 10947 */ 10948 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10949 blocked_links); 10950 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10951 10952 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10953 /* 10954 * Need to send IO back to original side to 10955 * run 10956 */ 10957 union ctl_ha_msg msg_info; 10958 10959 msg_info.hdr.original_sc = 10960 cur_blocked->io_hdr.original_sc; 10961 msg_info.hdr.serializing_sc = cur_blocked; 10962 msg_info.hdr.msg_type = CTL_MSG_R2R; 10963 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10964 &msg_info, sizeof(msg_info), 0)) > 10965 CTL_HA_STATUS_SUCCESS) { 10966 printf("CTL:Check Blocked error from " 10967 "ctl_ha_msg_send %d\n", 10968 isc_retval); 10969 } 10970 break; 10971 } 10972 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10973 softc = control_softc; 10974 10975 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10976 10977 /* 10978 * Check this I/O for LUN state changes that may 10979 * have happened while this command was blocked. 10980 * The LUN state may have been changed by a command 10981 * ahead of us in the queue, so we need to re-check 10982 * for any states that can be caused by SCSI 10983 * commands. 10984 */ 10985 if (ctl_scsiio_lun_check(softc, lun, entry, 10986 &cur_blocked->scsiio) == 0) { 10987 cur_blocked->io_hdr.flags |= 10988 CTL_FLAG_IS_WAS_ON_RTR; 10989 ctl_enqueue_rtr(cur_blocked); 10990 } else 10991 ctl_done(cur_blocked); 10992 break; 10993 } 10994 default: 10995 /* 10996 * This probably shouldn't happen -- we shouldn't 10997 * get CTL_ACTION_ERROR, or anything else. 10998 */ 10999 break; 11000 } 11001 } 11002 11003 return (CTL_RETVAL_COMPLETE); 11004} 11005 11006/* 11007 * This routine (with one exception) checks LUN flags that can be set by 11008 * commands ahead of us in the OOA queue. These flags have to be checked 11009 * when a command initially comes in, and when we pull a command off the 11010 * blocked queue and are preparing to execute it. The reason we have to 11011 * check these flags for commands on the blocked queue is that the LUN 11012 * state may have been changed by a command ahead of us while we're on the 11013 * blocked queue. 11014 * 11015 * Ordering is somewhat important with these checks, so please pay 11016 * careful attention to the placement of any new checks. 11017 */ 11018static int 11019ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11020 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11021{ 11022 int retval; 11023 11024 retval = 0; 11025 11026 mtx_assert(&lun->lun_lock, MA_OWNED); 11027 11028 /* 11029 * If this shelf is a secondary shelf controller, we have to reject 11030 * any media access commands. 11031 */ 11032#if 0 11033 /* No longer needed for HA */ 11034 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11035 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11036 ctl_set_lun_standby(ctsio); 11037 retval = 1; 11038 goto bailout; 11039 } 11040#endif 11041 11042 /* 11043 * Check for a reservation conflict. If this command isn't allowed 11044 * even on reserved LUNs, and if this initiator isn't the one who 11045 * reserved us, reject the command with a reservation conflict. 11046 */ 11047 if ((lun->flags & CTL_LUN_RESERVED) 11048 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11049 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11050 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11051 || (ctsio->io_hdr.nexus.targ_target.id != 11052 lun->rsv_nexus.targ_target.id)) { 11053 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11054 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11055 retval = 1; 11056 goto bailout; 11057 } 11058 } 11059 11060 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11061 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11062 uint32_t residx; 11063 11064 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11065 /* 11066 * if we aren't registered or it's a res holder type 11067 * reservation and this isn't the res holder then set a 11068 * conflict. 11069 * NOTE: Commands which might be allowed on write exclusive 11070 * type reservations are checked in the particular command 11071 * for a conflict. Read and SSU are the only ones. 11072 */ 11073 if (!lun->per_res[residx].registered 11074 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11075 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11076 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11077 retval = 1; 11078 goto bailout; 11079 } 11080 11081 } 11082 11083 if ((lun->flags & CTL_LUN_OFFLINE) 11084 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11085 ctl_set_lun_not_ready(ctsio); 11086 retval = 1; 11087 goto bailout; 11088 } 11089 11090 /* 11091 * If the LUN is stopped, see if this particular command is allowed 11092 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11093 */ 11094 if ((lun->flags & CTL_LUN_STOPPED) 11095 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11096 /* "Logical unit not ready, initializing cmd. required" */ 11097 ctl_set_lun_stopped(ctsio); 11098 retval = 1; 11099 goto bailout; 11100 } 11101 11102 if ((lun->flags & CTL_LUN_INOPERABLE) 11103 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11104 /* "Medium format corrupted" */ 11105 ctl_set_medium_format_corrupted(ctsio); 11106 retval = 1; 11107 goto bailout; 11108 } 11109 11110bailout: 11111 return (retval); 11112 11113} 11114 11115static void 11116ctl_failover_io(union ctl_io *io, int have_lock) 11117{ 11118 ctl_set_busy(&io->scsiio); 11119 ctl_done(io); 11120} 11121 11122static void 11123ctl_failover(void) 11124{ 11125 struct ctl_lun *lun; 11126 struct ctl_softc *ctl_softc; 11127 union ctl_io *next_io, *pending_io; 11128 union ctl_io *io; 11129 int lun_idx; 11130 int i; 11131 11132 ctl_softc = control_softc; 11133 11134 mtx_lock(&ctl_softc->ctl_lock); 11135 /* 11136 * Remove any cmds from the other SC from the rtr queue. These 11137 * will obviously only be for LUNs for which we're the primary. 11138 * We can't send status or get/send data for these commands. 11139 * Since they haven't been executed yet, we can just remove them. 11140 * We'll either abort them or delete them below, depending on 11141 * which HA mode we're in. 11142 */ 11143#ifdef notyet 11144 mtx_lock(&ctl_softc->queue_lock); 11145 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11146 io != NULL; io = next_io) { 11147 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11148 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11149 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11150 ctl_io_hdr, links); 11151 } 11152 mtx_unlock(&ctl_softc->queue_lock); 11153#endif 11154 11155 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11156 lun = ctl_softc->ctl_luns[lun_idx]; 11157 if (lun==NULL) 11158 continue; 11159 11160 /* 11161 * Processor LUNs are primary on both sides. 11162 * XXX will this always be true? 11163 */ 11164 if (lun->be_lun->lun_type == T_PROCESSOR) 11165 continue; 11166 11167 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11168 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11169 printf("FAILOVER: primary lun %d\n", lun_idx); 11170 /* 11171 * Remove all commands from the other SC. First from the 11172 * blocked queue then from the ooa queue. Once we have 11173 * removed them. Call ctl_check_blocked to see if there 11174 * is anything that can run. 11175 */ 11176 for (io = (union ctl_io *)TAILQ_FIRST( 11177 &lun->blocked_queue); io != NULL; io = next_io) { 11178 11179 next_io = (union ctl_io *)TAILQ_NEXT( 11180 &io->io_hdr, blocked_links); 11181 11182 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11183 TAILQ_REMOVE(&lun->blocked_queue, 11184 &io->io_hdr,blocked_links); 11185 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11186 TAILQ_REMOVE(&lun->ooa_queue, 11187 &io->io_hdr, ooa_links); 11188 11189 ctl_free_io(io); 11190 } 11191 } 11192 11193 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11194 io != NULL; io = next_io) { 11195 11196 next_io = (union ctl_io *)TAILQ_NEXT( 11197 &io->io_hdr, ooa_links); 11198 11199 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11200 11201 TAILQ_REMOVE(&lun->ooa_queue, 11202 &io->io_hdr, 11203 ooa_links); 11204 11205 ctl_free_io(io); 11206 } 11207 } 11208 ctl_check_blocked(lun); 11209 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11210 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11211 11212 printf("FAILOVER: primary lun %d\n", lun_idx); 11213 /* 11214 * Abort all commands from the other SC. We can't 11215 * send status back for them now. These should get 11216 * cleaned up when they are completed or come out 11217 * for a datamove operation. 11218 */ 11219 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11220 io != NULL; io = next_io) { 11221 next_io = (union ctl_io *)TAILQ_NEXT( 11222 &io->io_hdr, ooa_links); 11223 11224 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11225 io->io_hdr.flags |= CTL_FLAG_ABORT; 11226 } 11227 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11228 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11229 11230 printf("FAILOVER: secondary lun %d\n", lun_idx); 11231 11232 lun->flags |= CTL_LUN_PRIMARY_SC; 11233 11234 /* 11235 * We send all I/O that was sent to this controller 11236 * and redirected to the other side back with 11237 * busy status, and have the initiator retry it. 11238 * Figuring out how much data has been transferred, 11239 * etc. and picking up where we left off would be 11240 * very tricky. 11241 * 11242 * XXX KDM need to remove I/O from the blocked 11243 * queue as well! 11244 */ 11245 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11246 &lun->ooa_queue); pending_io != NULL; 11247 pending_io = next_io) { 11248 11249 next_io = (union ctl_io *)TAILQ_NEXT( 11250 &pending_io->io_hdr, ooa_links); 11251 11252 pending_io->io_hdr.flags &= 11253 ~CTL_FLAG_SENT_2OTHER_SC; 11254 11255 if (pending_io->io_hdr.flags & 11256 CTL_FLAG_IO_ACTIVE) { 11257 pending_io->io_hdr.flags |= 11258 CTL_FLAG_FAILOVER; 11259 } else { 11260 ctl_set_busy(&pending_io->scsiio); 11261 ctl_done(pending_io); 11262 } 11263 } 11264 11265 /* 11266 * Build Unit Attention 11267 */ 11268 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11269 lun->pending_sense[i].ua_pending |= 11270 CTL_UA_ASYM_ACC_CHANGE; 11271 } 11272 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11273 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11274 printf("FAILOVER: secondary lun %d\n", lun_idx); 11275 /* 11276 * if the first io on the OOA is not on the RtR queue 11277 * add it. 11278 */ 11279 lun->flags |= CTL_LUN_PRIMARY_SC; 11280 11281 pending_io = (union ctl_io *)TAILQ_FIRST( 11282 &lun->ooa_queue); 11283 if (pending_io==NULL) { 11284 printf("Nothing on OOA queue\n"); 11285 continue; 11286 } 11287 11288 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11289 if ((pending_io->io_hdr.flags & 11290 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11291 pending_io->io_hdr.flags |= 11292 CTL_FLAG_IS_WAS_ON_RTR; 11293 ctl_enqueue_rtr(pending_io); 11294 } 11295#if 0 11296 else 11297 { 11298 printf("Tag 0x%04x is running\n", 11299 pending_io->scsiio.tag_num); 11300 } 11301#endif 11302 11303 next_io = (union ctl_io *)TAILQ_NEXT( 11304 &pending_io->io_hdr, ooa_links); 11305 for (pending_io=next_io; pending_io != NULL; 11306 pending_io = next_io) { 11307 pending_io->io_hdr.flags &= 11308 ~CTL_FLAG_SENT_2OTHER_SC; 11309 next_io = (union ctl_io *)TAILQ_NEXT( 11310 &pending_io->io_hdr, ooa_links); 11311 if (pending_io->io_hdr.flags & 11312 CTL_FLAG_IS_WAS_ON_RTR) { 11313#if 0 11314 printf("Tag 0x%04x is running\n", 11315 pending_io->scsiio.tag_num); 11316#endif 11317 continue; 11318 } 11319 11320 switch (ctl_check_ooa(lun, pending_io, 11321 (union ctl_io *)TAILQ_PREV( 11322 &pending_io->io_hdr, ctl_ooaq, 11323 ooa_links))) { 11324 11325 case CTL_ACTION_BLOCK: 11326 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11327 &pending_io->io_hdr, 11328 blocked_links); 11329 pending_io->io_hdr.flags |= 11330 CTL_FLAG_BLOCKED; 11331 break; 11332 case CTL_ACTION_PASS: 11333 case CTL_ACTION_SKIP: 11334 pending_io->io_hdr.flags |= 11335 CTL_FLAG_IS_WAS_ON_RTR; 11336 ctl_enqueue_rtr(pending_io); 11337 break; 11338 case CTL_ACTION_OVERLAP: 11339 ctl_set_overlapped_cmd( 11340 (struct ctl_scsiio *)pending_io); 11341 ctl_done(pending_io); 11342 break; 11343 case CTL_ACTION_OVERLAP_TAG: 11344 ctl_set_overlapped_tag( 11345 (struct ctl_scsiio *)pending_io, 11346 pending_io->scsiio.tag_num & 0xff); 11347 ctl_done(pending_io); 11348 break; 11349 case CTL_ACTION_ERROR: 11350 default: 11351 ctl_set_internal_failure( 11352 (struct ctl_scsiio *)pending_io, 11353 0, // sks_valid 11354 0); //retry count 11355 ctl_done(pending_io); 11356 break; 11357 } 11358 } 11359 11360 /* 11361 * Build Unit Attention 11362 */ 11363 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11364 lun->pending_sense[i].ua_pending |= 11365 CTL_UA_ASYM_ACC_CHANGE; 11366 } 11367 } else { 11368 panic("Unhandled HA mode failover, LUN flags = %#x, " 11369 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11370 } 11371 } 11372 ctl_pause_rtr = 0; 11373 mtx_unlock(&ctl_softc->ctl_lock); 11374} 11375 11376static int 11377ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11378{ 11379 struct ctl_lun *lun; 11380 const struct ctl_cmd_entry *entry; 11381 uint32_t initidx, targ_lun; 11382 int retval; 11383 11384 retval = 0; 11385 11386 lun = NULL; 11387 11388 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11389 if ((targ_lun < CTL_MAX_LUNS) 11390 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11391 lun = ctl_softc->ctl_luns[targ_lun]; 11392 /* 11393 * If the LUN is invalid, pretend that it doesn't exist. 11394 * It will go away as soon as all pending I/O has been 11395 * completed. 11396 */ 11397 if (lun->flags & CTL_LUN_DISABLED) { 11398 lun = NULL; 11399 } else { 11400 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11401 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11402 lun->be_lun; 11403 if (lun->be_lun->lun_type == T_PROCESSOR) { 11404 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11405 } 11406 11407 /* 11408 * Every I/O goes into the OOA queue for a 11409 * particular LUN, and stays there until completion. 11410 */ 11411 mtx_lock(&lun->lun_lock); 11412 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11413 ooa_links); 11414 } 11415 } else { 11416 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11417 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11418 } 11419 11420 /* Get command entry and return error if it is unsuppotyed. */ 11421 entry = ctl_validate_command(ctsio); 11422 if (entry == NULL) { 11423 if (lun) 11424 mtx_unlock(&lun->lun_lock); 11425 return (retval); 11426 } 11427 11428 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11429 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11430 11431 /* 11432 * Check to see whether we can send this command to LUNs that don't 11433 * exist. This should pretty much only be the case for inquiry 11434 * and request sense. Further checks, below, really require having 11435 * a LUN, so we can't really check the command anymore. Just put 11436 * it on the rtr queue. 11437 */ 11438 if (lun == NULL) { 11439 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11440 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11441 ctl_enqueue_rtr((union ctl_io *)ctsio); 11442 return (retval); 11443 } 11444 11445 ctl_set_unsupported_lun(ctsio); 11446 ctl_done((union ctl_io *)ctsio); 11447 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11448 return (retval); 11449 } else { 11450 /* 11451 * Make sure we support this particular command on this LUN. 11452 * e.g., we don't support writes to the control LUN. 11453 */ 11454 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11455 mtx_unlock(&lun->lun_lock); 11456 ctl_set_invalid_opcode(ctsio); 11457 ctl_done((union ctl_io *)ctsio); 11458 return (retval); 11459 } 11460 } 11461 11462 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11463 11464 /* 11465 * If we've got a request sense, it'll clear the contingent 11466 * allegiance condition. Otherwise, if we have a CA condition for 11467 * this initiator, clear it, because it sent down a command other 11468 * than request sense. 11469 */ 11470 if ((ctsio->cdb[0] != REQUEST_SENSE) 11471 && (ctl_is_set(lun->have_ca, initidx))) 11472 ctl_clear_mask(lun->have_ca, initidx); 11473 11474 /* 11475 * If the command has this flag set, it handles its own unit 11476 * attention reporting, we shouldn't do anything. Otherwise we 11477 * check for any pending unit attentions, and send them back to the 11478 * initiator. We only do this when a command initially comes in, 11479 * not when we pull it off the blocked queue. 11480 * 11481 * According to SAM-3, section 5.3.2, the order that things get 11482 * presented back to the host is basically unit attentions caused 11483 * by some sort of reset event, busy status, reservation conflicts 11484 * or task set full, and finally any other status. 11485 * 11486 * One issue here is that some of the unit attentions we report 11487 * don't fall into the "reset" category (e.g. "reported luns data 11488 * has changed"). So reporting it here, before the reservation 11489 * check, may be technically wrong. I guess the only thing to do 11490 * would be to check for and report the reset events here, and then 11491 * check for the other unit attention types after we check for a 11492 * reservation conflict. 11493 * 11494 * XXX KDM need to fix this 11495 */ 11496 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11497 ctl_ua_type ua_type; 11498 11499 ua_type = lun->pending_sense[initidx].ua_pending; 11500 if (ua_type != CTL_UA_NONE) { 11501 scsi_sense_data_type sense_format; 11502 11503 if (lun != NULL) 11504 sense_format = (lun->flags & 11505 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11506 SSD_TYPE_FIXED; 11507 else 11508 sense_format = SSD_TYPE_FIXED; 11509 11510 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11511 sense_format); 11512 if (ua_type != CTL_UA_NONE) { 11513 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11514 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11515 CTL_AUTOSENSE; 11516 ctsio->sense_len = SSD_FULL_SIZE; 11517 lun->pending_sense[initidx].ua_pending &= 11518 ~ua_type; 11519 mtx_unlock(&lun->lun_lock); 11520 ctl_done((union ctl_io *)ctsio); 11521 return (retval); 11522 } 11523 } 11524 } 11525 11526 11527 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11528 mtx_unlock(&lun->lun_lock); 11529 ctl_done((union ctl_io *)ctsio); 11530 return (retval); 11531 } 11532 11533 /* 11534 * XXX CHD this is where we want to send IO to other side if 11535 * this LUN is secondary on this SC. We will need to make a copy 11536 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11537 * the copy we send as FROM_OTHER. 11538 * We also need to stuff the address of the original IO so we can 11539 * find it easily. Something similar will need be done on the other 11540 * side so when we are done we can find the copy. 11541 */ 11542 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11543 union ctl_ha_msg msg_info; 11544 int isc_retval; 11545 11546 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11547 11548 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11549 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11550#if 0 11551 printf("1. ctsio %p\n", ctsio); 11552#endif 11553 msg_info.hdr.serializing_sc = NULL; 11554 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11555 msg_info.scsi.tag_num = ctsio->tag_num; 11556 msg_info.scsi.tag_type = ctsio->tag_type; 11557 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11558 11559 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11560 11561 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11562 (void *)&msg_info, sizeof(msg_info), 0)) > 11563 CTL_HA_STATUS_SUCCESS) { 11564 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11565 isc_retval); 11566 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11567 } else { 11568#if 0 11569 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11570#endif 11571 } 11572 11573 /* 11574 * XXX KDM this I/O is off the incoming queue, but hasn't 11575 * been inserted on any other queue. We may need to come 11576 * up with a holding queue while we wait for serialization 11577 * so that we have an idea of what we're waiting for from 11578 * the other side. 11579 */ 11580 mtx_unlock(&lun->lun_lock); 11581 return (retval); 11582 } 11583 11584 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11585 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11586 ctl_ooaq, ooa_links))) { 11587 case CTL_ACTION_BLOCK: 11588 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11589 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11590 blocked_links); 11591 mtx_unlock(&lun->lun_lock); 11592 return (retval); 11593 case CTL_ACTION_PASS: 11594 case CTL_ACTION_SKIP: 11595 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11596 mtx_unlock(&lun->lun_lock); 11597 ctl_enqueue_rtr((union ctl_io *)ctsio); 11598 break; 11599 case CTL_ACTION_OVERLAP: 11600 mtx_unlock(&lun->lun_lock); 11601 ctl_set_overlapped_cmd(ctsio); 11602 ctl_done((union ctl_io *)ctsio); 11603 break; 11604 case CTL_ACTION_OVERLAP_TAG: 11605 mtx_unlock(&lun->lun_lock); 11606 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11607 ctl_done((union ctl_io *)ctsio); 11608 break; 11609 case CTL_ACTION_ERROR: 11610 default: 11611 mtx_unlock(&lun->lun_lock); 11612 ctl_set_internal_failure(ctsio, 11613 /*sks_valid*/ 0, 11614 /*retry_count*/ 0); 11615 ctl_done((union ctl_io *)ctsio); 11616 break; 11617 } 11618 return (retval); 11619} 11620 11621const struct ctl_cmd_entry * 11622ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11623{ 11624 const struct ctl_cmd_entry *entry; 11625 int service_action; 11626 11627 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11628 if (entry->flags & CTL_CMD_FLAG_SA5) { 11629 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11630 entry = &((const struct ctl_cmd_entry *) 11631 entry->execute)[service_action]; 11632 } 11633 return (entry); 11634} 11635 11636const struct ctl_cmd_entry * 11637ctl_validate_command(struct ctl_scsiio *ctsio) 11638{ 11639 const struct ctl_cmd_entry *entry; 11640 int i; 11641 uint8_t diff; 11642 11643 entry = ctl_get_cmd_entry(ctsio); 11644 if (entry->execute == NULL) { 11645 ctl_set_invalid_opcode(ctsio); 11646 ctl_done((union ctl_io *)ctsio); 11647 return (NULL); 11648 } 11649 KASSERT(entry->length > 0, 11650 ("Not defined length for command 0x%02x/0x%02x", 11651 ctsio->cdb[0], ctsio->cdb[1])); 11652 for (i = 1; i < entry->length; i++) { 11653 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11654 if (diff == 0) 11655 continue; 11656 ctl_set_invalid_field(ctsio, 11657 /*sks_valid*/ 1, 11658 /*command*/ 1, 11659 /*field*/ i, 11660 /*bit_valid*/ 1, 11661 /*bit*/ fls(diff) - 1); 11662 ctl_done((union ctl_io *)ctsio); 11663 return (NULL); 11664 } 11665 return (entry); 11666} 11667 11668static int 11669ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11670{ 11671 11672 switch (lun_type) { 11673 case T_PROCESSOR: 11674 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11675 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11676 return (0); 11677 break; 11678 case T_DIRECT: 11679 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11680 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11681 return (0); 11682 break; 11683 default: 11684 return (0); 11685 } 11686 return (1); 11687} 11688 11689static int 11690ctl_scsiio(struct ctl_scsiio *ctsio) 11691{ 11692 int retval; 11693 const struct ctl_cmd_entry *entry; 11694 11695 retval = CTL_RETVAL_COMPLETE; 11696 11697 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11698 11699 entry = ctl_get_cmd_entry(ctsio); 11700 11701 /* 11702 * If this I/O has been aborted, just send it straight to 11703 * ctl_done() without executing it. 11704 */ 11705 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11706 ctl_done((union ctl_io *)ctsio); 11707 goto bailout; 11708 } 11709 11710 /* 11711 * All the checks should have been handled by ctl_scsiio_precheck(). 11712 * We should be clear now to just execute the I/O. 11713 */ 11714 retval = entry->execute(ctsio); 11715 11716bailout: 11717 return (retval); 11718} 11719 11720/* 11721 * Since we only implement one target right now, a bus reset simply resets 11722 * our single target. 11723 */ 11724static int 11725ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11726{ 11727 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11728} 11729 11730static int 11731ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11732 ctl_ua_type ua_type) 11733{ 11734 struct ctl_lun *lun; 11735 int retval; 11736 11737 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11738 union ctl_ha_msg msg_info; 11739 11740 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11741 msg_info.hdr.nexus = io->io_hdr.nexus; 11742 if (ua_type==CTL_UA_TARG_RESET) 11743 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11744 else 11745 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11746 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11747 msg_info.hdr.original_sc = NULL; 11748 msg_info.hdr.serializing_sc = NULL; 11749 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11750 (void *)&msg_info, sizeof(msg_info), 0)) { 11751 } 11752 } 11753 retval = 0; 11754 11755 mtx_lock(&ctl_softc->ctl_lock); 11756 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11757 retval += ctl_lun_reset(lun, io, ua_type); 11758 mtx_unlock(&ctl_softc->ctl_lock); 11759 11760 return (retval); 11761} 11762 11763/* 11764 * The LUN should always be set. The I/O is optional, and is used to 11765 * distinguish between I/Os sent by this initiator, and by other 11766 * initiators. We set unit attention for initiators other than this one. 11767 * SAM-3 is vague on this point. It does say that a unit attention should 11768 * be established for other initiators when a LUN is reset (see section 11769 * 5.7.3), but it doesn't specifically say that the unit attention should 11770 * be established for this particular initiator when a LUN is reset. Here 11771 * is the relevant text, from SAM-3 rev 8: 11772 * 11773 * 5.7.2 When a SCSI initiator port aborts its own tasks 11774 * 11775 * When a SCSI initiator port causes its own task(s) to be aborted, no 11776 * notification that the task(s) have been aborted shall be returned to 11777 * the SCSI initiator port other than the completion response for the 11778 * command or task management function action that caused the task(s) to 11779 * be aborted and notification(s) associated with related effects of the 11780 * action (e.g., a reset unit attention condition). 11781 * 11782 * XXX KDM for now, we're setting unit attention for all initiators. 11783 */ 11784static int 11785ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11786{ 11787 union ctl_io *xio; 11788#if 0 11789 uint32_t initindex; 11790#endif 11791 int i; 11792 11793 mtx_lock(&lun->lun_lock); 11794 /* 11795 * Run through the OOA queue and abort each I/O. 11796 */ 11797#if 0 11798 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11799#endif 11800 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11801 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11802 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11803 } 11804 11805 /* 11806 * This version sets unit attention for every 11807 */ 11808#if 0 11809 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11810 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11811 if (initindex == i) 11812 continue; 11813 lun->pending_sense[i].ua_pending |= ua_type; 11814 } 11815#endif 11816 11817 /* 11818 * A reset (any kind, really) clears reservations established with 11819 * RESERVE/RELEASE. It does not clear reservations established 11820 * with PERSISTENT RESERVE OUT, but we don't support that at the 11821 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11822 * reservations made with the RESERVE/RELEASE commands, because 11823 * those commands are obsolete in SPC-3. 11824 */ 11825 lun->flags &= ~CTL_LUN_RESERVED; 11826 11827 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11828 ctl_clear_mask(lun->have_ca, i); 11829 lun->pending_sense[i].ua_pending |= ua_type; 11830 } 11831 mtx_unlock(&lun->lun_lock); 11832 11833 return (0); 11834} 11835 11836static int 11837ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11838 int other_sc) 11839{ 11840 union ctl_io *xio; 11841 int found; 11842 11843 mtx_assert(&lun->lun_lock, MA_OWNED); 11844 11845 /* 11846 * Run through the OOA queue and attempt to find the given I/O. 11847 * The target port, initiator ID, tag type and tag number have to 11848 * match the values that we got from the initiator. If we have an 11849 * untagged command to abort, simply abort the first untagged command 11850 * we come to. We only allow one untagged command at a time of course. 11851 */ 11852 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11853 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11854 11855 if ((targ_port == UINT32_MAX || 11856 targ_port == xio->io_hdr.nexus.targ_port) && 11857 (init_id == UINT32_MAX || 11858 init_id == xio->io_hdr.nexus.initid.id)) { 11859 if (targ_port != xio->io_hdr.nexus.targ_port || 11860 init_id != xio->io_hdr.nexus.initid.id) 11861 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11862 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11863 found = 1; 11864 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11865 union ctl_ha_msg msg_info; 11866 11867 msg_info.hdr.nexus = xio->io_hdr.nexus; 11868 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11869 msg_info.task.tag_num = xio->scsiio.tag_num; 11870 msg_info.task.tag_type = xio->scsiio.tag_type; 11871 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11872 msg_info.hdr.original_sc = NULL; 11873 msg_info.hdr.serializing_sc = NULL; 11874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11875 (void *)&msg_info, sizeof(msg_info), 0); 11876 } 11877 } 11878 } 11879 return (found); 11880} 11881 11882static int 11883ctl_abort_task_set(union ctl_io *io) 11884{ 11885 struct ctl_softc *softc = control_softc; 11886 struct ctl_lun *lun; 11887 uint32_t targ_lun; 11888 11889 /* 11890 * Look up the LUN. 11891 */ 11892 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11893 mtx_lock(&softc->ctl_lock); 11894 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11895 lun = softc->ctl_luns[targ_lun]; 11896 else { 11897 mtx_unlock(&softc->ctl_lock); 11898 return (1); 11899 } 11900 11901 mtx_lock(&lun->lun_lock); 11902 mtx_unlock(&softc->ctl_lock); 11903 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11904 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11905 io->io_hdr.nexus.initid.id, 11906 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11907 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11908 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11909 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11910 } 11911 mtx_unlock(&lun->lun_lock); 11912 return (0); 11913} 11914 11915static int 11916ctl_i_t_nexus_reset(union ctl_io *io) 11917{ 11918 struct ctl_softc *softc = control_softc; 11919 struct ctl_lun *lun; 11920 uint32_t initindex; 11921 11922 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11923 mtx_lock(&softc->ctl_lock); 11924 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11925 mtx_lock(&lun->lun_lock); 11926 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11927 io->io_hdr.nexus.initid.id, 11928 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11929 ctl_clear_mask(lun->have_ca, initindex); 11930 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS; 11931 mtx_unlock(&lun->lun_lock); 11932 } 11933 mtx_unlock(&softc->ctl_lock); 11934 return (0); 11935} 11936 11937static int 11938ctl_abort_task(union ctl_io *io) 11939{ 11940 union ctl_io *xio; 11941 struct ctl_lun *lun; 11942 struct ctl_softc *ctl_softc; 11943#if 0 11944 struct sbuf sb; 11945 char printbuf[128]; 11946#endif 11947 int found; 11948 uint32_t targ_lun; 11949 11950 ctl_softc = control_softc; 11951 found = 0; 11952 11953 /* 11954 * Look up the LUN. 11955 */ 11956 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11957 mtx_lock(&ctl_softc->ctl_lock); 11958 if ((targ_lun < CTL_MAX_LUNS) 11959 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11960 lun = ctl_softc->ctl_luns[targ_lun]; 11961 else { 11962 mtx_unlock(&ctl_softc->ctl_lock); 11963 return (1); 11964 } 11965 11966#if 0 11967 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11968 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11969#endif 11970 11971 mtx_lock(&lun->lun_lock); 11972 mtx_unlock(&ctl_softc->ctl_lock); 11973 /* 11974 * Run through the OOA queue and attempt to find the given I/O. 11975 * The target port, initiator ID, tag type and tag number have to 11976 * match the values that we got from the initiator. If we have an 11977 * untagged command to abort, simply abort the first untagged command 11978 * we come to. We only allow one untagged command at a time of course. 11979 */ 11980#if 0 11981 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11982#endif 11983 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11984 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11985#if 0 11986 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11987 11988 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11989 lun->lun, xio->scsiio.tag_num, 11990 xio->scsiio.tag_type, 11991 (xio->io_hdr.blocked_links.tqe_prev 11992 == NULL) ? "" : " BLOCKED", 11993 (xio->io_hdr.flags & 11994 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11995 (xio->io_hdr.flags & 11996 CTL_FLAG_ABORT) ? " ABORT" : "", 11997 (xio->io_hdr.flags & 11998 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11999 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12000 sbuf_finish(&sb); 12001 printf("%s\n", sbuf_data(&sb)); 12002#endif 12003 12004 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12005 && (xio->io_hdr.nexus.initid.id == 12006 io->io_hdr.nexus.initid.id)) { 12007 /* 12008 * If the abort says that the task is untagged, the 12009 * task in the queue must be untagged. Otherwise, 12010 * we just check to see whether the tag numbers 12011 * match. This is because the QLogic firmware 12012 * doesn't pass back the tag type in an abort 12013 * request. 12014 */ 12015#if 0 12016 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12017 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12018 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12019#endif 12020 /* 12021 * XXX KDM we've got problems with FC, because it 12022 * doesn't send down a tag type with aborts. So we 12023 * can only really go by the tag number... 12024 * This may cause problems with parallel SCSI. 12025 * Need to figure that out!! 12026 */ 12027 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12028 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12029 found = 1; 12030 if ((io->io_hdr.flags & 12031 CTL_FLAG_FROM_OTHER_SC) == 0 && 12032 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12033 union ctl_ha_msg msg_info; 12034 12035 io->io_hdr.flags |= 12036 CTL_FLAG_SENT_2OTHER_SC; 12037 msg_info.hdr.nexus = io->io_hdr.nexus; 12038 msg_info.task.task_action = 12039 CTL_TASK_ABORT_TASK; 12040 msg_info.task.tag_num = 12041 io->taskio.tag_num; 12042 msg_info.task.tag_type = 12043 io->taskio.tag_type; 12044 msg_info.hdr.msg_type = 12045 CTL_MSG_MANAGE_TASKS; 12046 msg_info.hdr.original_sc = NULL; 12047 msg_info.hdr.serializing_sc = NULL; 12048#if 0 12049 printf("Sent Abort to other side\n"); 12050#endif 12051 if (CTL_HA_STATUS_SUCCESS != 12052 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12053 (void *)&msg_info, 12054 sizeof(msg_info), 0)) { 12055 } 12056 } 12057#if 0 12058 printf("ctl_abort_task: found I/O to abort\n"); 12059#endif 12060 break; 12061 } 12062 } 12063 } 12064 mtx_unlock(&lun->lun_lock); 12065 12066 if (found == 0) { 12067 /* 12068 * This isn't really an error. It's entirely possible for 12069 * the abort and command completion to cross on the wire. 12070 * This is more of an informative/diagnostic error. 12071 */ 12072#if 0 12073 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12074 "%d:%d:%d:%d tag %d type %d\n", 12075 io->io_hdr.nexus.initid.id, 12076 io->io_hdr.nexus.targ_port, 12077 io->io_hdr.nexus.targ_target.id, 12078 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12079 io->taskio.tag_type); 12080#endif 12081 } 12082 return (0); 12083} 12084 12085static void 12086ctl_run_task(union ctl_io *io) 12087{ 12088 struct ctl_softc *ctl_softc = control_softc; 12089 int retval = 1; 12090 const char *task_desc; 12091 12092 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12093 12094 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12095 ("ctl_run_task: Unextected io_type %d\n", 12096 io->io_hdr.io_type)); 12097 12098 task_desc = ctl_scsi_task_string(&io->taskio); 12099 if (task_desc != NULL) { 12100#ifdef NEEDTOPORT 12101 csevent_log(CSC_CTL | CSC_SHELF_SW | 12102 CTL_TASK_REPORT, 12103 csevent_LogType_Trace, 12104 csevent_Severity_Information, 12105 csevent_AlertLevel_Green, 12106 csevent_FRU_Firmware, 12107 csevent_FRU_Unknown, 12108 "CTL: received task: %s",task_desc); 12109#endif 12110 } else { 12111#ifdef NEEDTOPORT 12112 csevent_log(CSC_CTL | CSC_SHELF_SW | 12113 CTL_TASK_REPORT, 12114 csevent_LogType_Trace, 12115 csevent_Severity_Information, 12116 csevent_AlertLevel_Green, 12117 csevent_FRU_Firmware, 12118 csevent_FRU_Unknown, 12119 "CTL: received unknown task " 12120 "type: %d (%#x)", 12121 io->taskio.task_action, 12122 io->taskio.task_action); 12123#endif 12124 } 12125 switch (io->taskio.task_action) { 12126 case CTL_TASK_ABORT_TASK: 12127 retval = ctl_abort_task(io); 12128 break; 12129 case CTL_TASK_ABORT_TASK_SET: 12130 case CTL_TASK_CLEAR_TASK_SET: 12131 retval = ctl_abort_task_set(io); 12132 break; 12133 case CTL_TASK_CLEAR_ACA: 12134 break; 12135 case CTL_TASK_I_T_NEXUS_RESET: 12136 retval = ctl_i_t_nexus_reset(io); 12137 break; 12138 case CTL_TASK_LUN_RESET: { 12139 struct ctl_lun *lun; 12140 uint32_t targ_lun; 12141 12142 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12143 mtx_lock(&ctl_softc->ctl_lock); 12144 if ((targ_lun < CTL_MAX_LUNS) 12145 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12146 lun = ctl_softc->ctl_luns[targ_lun]; 12147 else { 12148 mtx_unlock(&ctl_softc->ctl_lock); 12149 retval = 1; 12150 break; 12151 } 12152 12153 if (!(io->io_hdr.flags & 12154 CTL_FLAG_FROM_OTHER_SC)) { 12155 union ctl_ha_msg msg_info; 12156 12157 io->io_hdr.flags |= 12158 CTL_FLAG_SENT_2OTHER_SC; 12159 msg_info.hdr.msg_type = 12160 CTL_MSG_MANAGE_TASKS; 12161 msg_info.hdr.nexus = io->io_hdr.nexus; 12162 msg_info.task.task_action = 12163 CTL_TASK_LUN_RESET; 12164 msg_info.hdr.original_sc = NULL; 12165 msg_info.hdr.serializing_sc = NULL; 12166 if (CTL_HA_STATUS_SUCCESS != 12167 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12168 (void *)&msg_info, 12169 sizeof(msg_info), 0)) { 12170 } 12171 } 12172 12173 retval = ctl_lun_reset(lun, io, 12174 CTL_UA_LUN_RESET); 12175 mtx_unlock(&ctl_softc->ctl_lock); 12176 break; 12177 } 12178 case CTL_TASK_TARGET_RESET: 12179 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12180 break; 12181 case CTL_TASK_BUS_RESET: 12182 retval = ctl_bus_reset(ctl_softc, io); 12183 break; 12184 case CTL_TASK_PORT_LOGIN: 12185 break; 12186 case CTL_TASK_PORT_LOGOUT: 12187 break; 12188 default: 12189 printf("ctl_run_task: got unknown task management event %d\n", 12190 io->taskio.task_action); 12191 break; 12192 } 12193 if (retval == 0) 12194 io->io_hdr.status = CTL_SUCCESS; 12195 else 12196 io->io_hdr.status = CTL_ERROR; 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 ctl_set_task_aborted(&io->scsiio); 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