ctl.c revision 268699
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 268699 2014-07-15 17:20:40Z 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 *eui, *naa, *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 eui = ctl_get_opt(&be_lun->options, "eui"); 4482 if (eui != NULL) { 4483 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4484 } 4485 naa = ctl_get_opt(&be_lun->options, "naa"); 4486 if (naa != NULL) { 4487 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4488 } 4489 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4490 M_CTL, M_WAITOK | M_ZERO); 4491 lun->lun_devid->len = len; 4492 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4493 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4494 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4495 desc->length = idlen1; 4496 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4497 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4498 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4499 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4500 } else { 4501 strncpy(t10id->vendor, vendor, 4502 min(sizeof(t10id->vendor), strlen(vendor))); 4503 } 4504 strncpy((char *)t10id->vendor_spec_id, 4505 (char *)be_lun->device_id, devidlen); 4506 if (scsiname != NULL) { 4507 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4508 desc->length); 4509 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4510 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4511 SVPD_ID_TYPE_SCSI_NAME; 4512 desc->length = idlen2; 4513 strlcpy(desc->identifier, scsiname, idlen2); 4514 } 4515 if (eui != NULL) { 4516 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4517 desc->length); 4518 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4519 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4520 SVPD_ID_TYPE_EUI64; 4521 desc->length = 8; 4522 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4523 } 4524 if (naa != NULL) { 4525 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4526 desc->length); 4527 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4528 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4529 SVPD_ID_TYPE_NAA; 4530 desc->length = 8; 4531 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4532 } 4533 4534 mtx_lock(&ctl_softc->ctl_lock); 4535 /* 4536 * See if the caller requested a particular LUN number. If so, see 4537 * if it is available. Otherwise, allocate the first available LUN. 4538 */ 4539 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4540 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4541 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4542 mtx_unlock(&ctl_softc->ctl_lock); 4543 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4544 printf("ctl: requested LUN ID %d is higher " 4545 "than CTL_MAX_LUNS - 1 (%d)\n", 4546 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4547 } else { 4548 /* 4549 * XXX KDM return an error, or just assign 4550 * another LUN ID in this case?? 4551 */ 4552 printf("ctl: requested LUN ID %d is already " 4553 "in use\n", be_lun->req_lun_id); 4554 } 4555 if (lun->flags & CTL_LUN_MALLOCED) 4556 free(lun, M_CTL); 4557 be_lun->lun_config_status(be_lun->be_lun, 4558 CTL_LUN_CONFIG_FAILURE); 4559 return (ENOSPC); 4560 } 4561 lun_number = be_lun->req_lun_id; 4562 } else { 4563 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4564 if (lun_number == -1) { 4565 mtx_unlock(&ctl_softc->ctl_lock); 4566 printf("ctl: can't allocate LUN on target %ju, out of " 4567 "LUNs\n", (uintmax_t)target_id.id); 4568 if (lun->flags & CTL_LUN_MALLOCED) 4569 free(lun, M_CTL); 4570 be_lun->lun_config_status(be_lun->be_lun, 4571 CTL_LUN_CONFIG_FAILURE); 4572 return (ENOSPC); 4573 } 4574 } 4575 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4576 4577 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4578 lun->target = target_id; 4579 lun->lun = lun_number; 4580 lun->be_lun = be_lun; 4581 /* 4582 * The processor LUN is always enabled. Disk LUNs come on line 4583 * disabled, and must be enabled by the backend. 4584 */ 4585 lun->flags |= CTL_LUN_DISABLED; 4586 lun->backend = be_lun->be; 4587 be_lun->ctl_lun = lun; 4588 be_lun->lun_id = lun_number; 4589 atomic_add_int(&be_lun->be->num_luns, 1); 4590 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4591 lun->flags |= CTL_LUN_STOPPED; 4592 4593 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4594 lun->flags |= CTL_LUN_INOPERABLE; 4595 4596 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4597 lun->flags |= CTL_LUN_PRIMARY_SC; 4598 4599 lun->ctl_softc = ctl_softc; 4600 TAILQ_INIT(&lun->ooa_queue); 4601 TAILQ_INIT(&lun->blocked_queue); 4602 STAILQ_INIT(&lun->error_list); 4603 4604 /* 4605 * Initialize the mode page index. 4606 */ 4607 ctl_init_page_index(lun); 4608 4609 /* 4610 * Set the poweron UA for all initiators on this LUN only. 4611 */ 4612 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4613 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4614 4615 /* 4616 * Now, before we insert this lun on the lun list, set the lun 4617 * inventory changed UA for all other luns. 4618 */ 4619 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4620 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4621 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4622 } 4623 } 4624 4625 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4626 4627 ctl_softc->ctl_luns[lun_number] = lun; 4628 4629 ctl_softc->num_luns++; 4630 4631 /* Setup statistics gathering */ 4632 lun->stats.device_type = be_lun->lun_type; 4633 lun->stats.lun_number = lun_number; 4634 if (lun->stats.device_type == T_DIRECT) 4635 lun->stats.blocksize = be_lun->blocksize; 4636 else 4637 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4638 for (i = 0;i < CTL_MAX_PORTS;i++) 4639 lun->stats.ports[i].targ_port = i; 4640 4641 mtx_unlock(&ctl_softc->ctl_lock); 4642 4643 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4644 4645 /* 4646 * Run through each registered FETD and bring it online if it isn't 4647 * already. Enable the target ID if it hasn't been enabled, and 4648 * enable this particular LUN. 4649 */ 4650 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4651 int retval; 4652 4653 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4654 if (retval != 0) { 4655 printf("ctl_alloc_lun: FETD %s port %d returned error " 4656 "%d for lun_enable on target %ju lun %d\n", 4657 port->port_name, port->targ_port, retval, 4658 (uintmax_t)target_id.id, lun_number); 4659 } else 4660 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4661 } 4662 return (0); 4663} 4664 4665/* 4666 * Delete a LUN. 4667 * Assumptions: 4668 * - LUN has already been marked invalid and any pending I/O has been taken 4669 * care of. 4670 */ 4671static int 4672ctl_free_lun(struct ctl_lun *lun) 4673{ 4674 struct ctl_softc *softc; 4675#if 0 4676 struct ctl_port *port; 4677#endif 4678 struct ctl_lun *nlun; 4679 int i; 4680 4681 softc = lun->ctl_softc; 4682 4683 mtx_assert(&softc->ctl_lock, MA_OWNED); 4684 4685 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4686 4687 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4688 4689 softc->ctl_luns[lun->lun] = NULL; 4690 4691 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4692 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4693 4694 softc->num_luns--; 4695 4696 /* 4697 * XXX KDM this scheme only works for a single target/multiple LUN 4698 * setup. It needs to be revamped for a multiple target scheme. 4699 * 4700 * XXX KDM this results in port->lun_disable() getting called twice, 4701 * once when ctl_disable_lun() is called, and a second time here. 4702 * We really need to re-think the LUN disable semantics. There 4703 * should probably be several steps/levels to LUN removal: 4704 * - disable 4705 * - invalidate 4706 * - free 4707 * 4708 * Right now we only have a disable method when communicating to 4709 * the front end ports, at least for individual LUNs. 4710 */ 4711#if 0 4712 STAILQ_FOREACH(port, &softc->port_list, links) { 4713 int retval; 4714 4715 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4716 lun->lun); 4717 if (retval != 0) { 4718 printf("ctl_free_lun: FETD %s port %d returned error " 4719 "%d for lun_disable on target %ju lun %jd\n", 4720 port->port_name, port->targ_port, retval, 4721 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4722 } 4723 4724 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4725 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4726 4727 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4728 if (retval != 0) { 4729 printf("ctl_free_lun: FETD %s port %d " 4730 "returned error %d for targ_disable on " 4731 "target %ju\n", port->port_name, 4732 port->targ_port, retval, 4733 (uintmax_t)lun->target.id); 4734 } else 4735 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4736 4737 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4738 continue; 4739 4740#if 0 4741 port->port_offline(port->onoff_arg); 4742 port->status &= ~CTL_PORT_STATUS_ONLINE; 4743#endif 4744 } 4745 } 4746#endif 4747 4748 /* 4749 * Tell the backend to free resources, if this LUN has a backend. 4750 */ 4751 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4752 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4753 4754 mtx_destroy(&lun->lun_lock); 4755 free(lun->lun_devid, M_CTL); 4756 if (lun->flags & CTL_LUN_MALLOCED) 4757 free(lun, M_CTL); 4758 4759 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4760 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4761 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4762 } 4763 } 4764 4765 return (0); 4766} 4767 4768static void 4769ctl_create_lun(struct ctl_be_lun *be_lun) 4770{ 4771 struct ctl_softc *ctl_softc; 4772 4773 ctl_softc = control_softc; 4774 4775 /* 4776 * ctl_alloc_lun() should handle all potential failure cases. 4777 */ 4778 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4779} 4780 4781int 4782ctl_add_lun(struct ctl_be_lun *be_lun) 4783{ 4784 struct ctl_softc *ctl_softc = control_softc; 4785 4786 mtx_lock(&ctl_softc->ctl_lock); 4787 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4788 mtx_unlock(&ctl_softc->ctl_lock); 4789 wakeup(&ctl_softc->pending_lun_queue); 4790 4791 return (0); 4792} 4793 4794int 4795ctl_enable_lun(struct ctl_be_lun *be_lun) 4796{ 4797 struct ctl_softc *ctl_softc; 4798 struct ctl_port *port, *nport; 4799 struct ctl_lun *lun; 4800 int retval; 4801 4802 ctl_softc = control_softc; 4803 4804 lun = (struct ctl_lun *)be_lun->ctl_lun; 4805 4806 mtx_lock(&ctl_softc->ctl_lock); 4807 mtx_lock(&lun->lun_lock); 4808 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4809 /* 4810 * eh? Why did we get called if the LUN is already 4811 * enabled? 4812 */ 4813 mtx_unlock(&lun->lun_lock); 4814 mtx_unlock(&ctl_softc->ctl_lock); 4815 return (0); 4816 } 4817 lun->flags &= ~CTL_LUN_DISABLED; 4818 mtx_unlock(&lun->lun_lock); 4819 4820 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4821 nport = STAILQ_NEXT(port, links); 4822 4823 /* 4824 * Drop the lock while we call the FETD's enable routine. 4825 * This can lead to a callback into CTL (at least in the 4826 * case of the internal initiator frontend. 4827 */ 4828 mtx_unlock(&ctl_softc->ctl_lock); 4829 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4830 mtx_lock(&ctl_softc->ctl_lock); 4831 if (retval != 0) { 4832 printf("%s: FETD %s port %d returned error " 4833 "%d for lun_enable on target %ju lun %jd\n", 4834 __func__, port->port_name, port->targ_port, retval, 4835 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4836 } 4837#if 0 4838 else { 4839 /* NOTE: TODO: why does lun enable affect port status? */ 4840 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4841 } 4842#endif 4843 } 4844 4845 mtx_unlock(&ctl_softc->ctl_lock); 4846 4847 return (0); 4848} 4849 4850int 4851ctl_disable_lun(struct ctl_be_lun *be_lun) 4852{ 4853 struct ctl_softc *ctl_softc; 4854 struct ctl_port *port; 4855 struct ctl_lun *lun; 4856 int retval; 4857 4858 ctl_softc = control_softc; 4859 4860 lun = (struct ctl_lun *)be_lun->ctl_lun; 4861 4862 mtx_lock(&ctl_softc->ctl_lock); 4863 mtx_lock(&lun->lun_lock); 4864 if (lun->flags & CTL_LUN_DISABLED) { 4865 mtx_unlock(&lun->lun_lock); 4866 mtx_unlock(&ctl_softc->ctl_lock); 4867 return (0); 4868 } 4869 lun->flags |= CTL_LUN_DISABLED; 4870 mtx_unlock(&lun->lun_lock); 4871 4872 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4873 mtx_unlock(&ctl_softc->ctl_lock); 4874 /* 4875 * Drop the lock before we call the frontend's disable 4876 * routine, to avoid lock order reversals. 4877 * 4878 * XXX KDM what happens if the frontend list changes while 4879 * we're traversing it? It's unlikely, but should be handled. 4880 */ 4881 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4882 lun->lun); 4883 mtx_lock(&ctl_softc->ctl_lock); 4884 if (retval != 0) { 4885 printf("ctl_alloc_lun: FETD %s port %d returned error " 4886 "%d for lun_disable on target %ju lun %jd\n", 4887 port->port_name, port->targ_port, retval, 4888 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4889 } 4890 } 4891 4892 mtx_unlock(&ctl_softc->ctl_lock); 4893 4894 return (0); 4895} 4896 4897int 4898ctl_start_lun(struct ctl_be_lun *be_lun) 4899{ 4900 struct ctl_softc *ctl_softc; 4901 struct ctl_lun *lun; 4902 4903 ctl_softc = control_softc; 4904 4905 lun = (struct ctl_lun *)be_lun->ctl_lun; 4906 4907 mtx_lock(&lun->lun_lock); 4908 lun->flags &= ~CTL_LUN_STOPPED; 4909 mtx_unlock(&lun->lun_lock); 4910 4911 return (0); 4912} 4913 4914int 4915ctl_stop_lun(struct ctl_be_lun *be_lun) 4916{ 4917 struct ctl_softc *ctl_softc; 4918 struct ctl_lun *lun; 4919 4920 ctl_softc = control_softc; 4921 4922 lun = (struct ctl_lun *)be_lun->ctl_lun; 4923 4924 mtx_lock(&lun->lun_lock); 4925 lun->flags |= CTL_LUN_STOPPED; 4926 mtx_unlock(&lun->lun_lock); 4927 4928 return (0); 4929} 4930 4931int 4932ctl_lun_offline(struct ctl_be_lun *be_lun) 4933{ 4934 struct ctl_softc *ctl_softc; 4935 struct ctl_lun *lun; 4936 4937 ctl_softc = control_softc; 4938 4939 lun = (struct ctl_lun *)be_lun->ctl_lun; 4940 4941 mtx_lock(&lun->lun_lock); 4942 lun->flags |= CTL_LUN_OFFLINE; 4943 mtx_unlock(&lun->lun_lock); 4944 4945 return (0); 4946} 4947 4948int 4949ctl_lun_online(struct ctl_be_lun *be_lun) 4950{ 4951 struct ctl_softc *ctl_softc; 4952 struct ctl_lun *lun; 4953 4954 ctl_softc = control_softc; 4955 4956 lun = (struct ctl_lun *)be_lun->ctl_lun; 4957 4958 mtx_lock(&lun->lun_lock); 4959 lun->flags &= ~CTL_LUN_OFFLINE; 4960 mtx_unlock(&lun->lun_lock); 4961 4962 return (0); 4963} 4964 4965int 4966ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4967{ 4968 struct ctl_softc *ctl_softc; 4969 struct ctl_lun *lun; 4970 4971 ctl_softc = control_softc; 4972 4973 lun = (struct ctl_lun *)be_lun->ctl_lun; 4974 4975 mtx_lock(&lun->lun_lock); 4976 4977 /* 4978 * The LUN needs to be disabled before it can be marked invalid. 4979 */ 4980 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4981 mtx_unlock(&lun->lun_lock); 4982 return (-1); 4983 } 4984 /* 4985 * Mark the LUN invalid. 4986 */ 4987 lun->flags |= CTL_LUN_INVALID; 4988 4989 /* 4990 * If there is nothing in the OOA queue, go ahead and free the LUN. 4991 * If we have something in the OOA queue, we'll free it when the 4992 * last I/O completes. 4993 */ 4994 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4995 mtx_unlock(&lun->lun_lock); 4996 mtx_lock(&ctl_softc->ctl_lock); 4997 ctl_free_lun(lun); 4998 mtx_unlock(&ctl_softc->ctl_lock); 4999 } else 5000 mtx_unlock(&lun->lun_lock); 5001 5002 return (0); 5003} 5004 5005int 5006ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5007{ 5008 struct ctl_softc *ctl_softc; 5009 struct ctl_lun *lun; 5010 5011 ctl_softc = control_softc; 5012 lun = (struct ctl_lun *)be_lun->ctl_lun; 5013 5014 mtx_lock(&lun->lun_lock); 5015 lun->flags |= CTL_LUN_INOPERABLE; 5016 mtx_unlock(&lun->lun_lock); 5017 5018 return (0); 5019} 5020 5021int 5022ctl_lun_operable(struct ctl_be_lun *be_lun) 5023{ 5024 struct ctl_softc *ctl_softc; 5025 struct ctl_lun *lun; 5026 5027 ctl_softc = control_softc; 5028 lun = (struct ctl_lun *)be_lun->ctl_lun; 5029 5030 mtx_lock(&lun->lun_lock); 5031 lun->flags &= ~CTL_LUN_INOPERABLE; 5032 mtx_unlock(&lun->lun_lock); 5033 5034 return (0); 5035} 5036 5037int 5038ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5039 int lock) 5040{ 5041 struct ctl_softc *softc; 5042 struct ctl_lun *lun; 5043 struct copan_aps_subpage *current_sp; 5044 struct ctl_page_index *page_index; 5045 int i; 5046 5047 softc = control_softc; 5048 5049 mtx_lock(&softc->ctl_lock); 5050 5051 lun = (struct ctl_lun *)be_lun->ctl_lun; 5052 mtx_lock(&lun->lun_lock); 5053 5054 page_index = NULL; 5055 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5056 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5057 APS_PAGE_CODE) 5058 continue; 5059 5060 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5061 continue; 5062 page_index = &lun->mode_pages.index[i]; 5063 } 5064 5065 if (page_index == NULL) { 5066 mtx_unlock(&lun->lun_lock); 5067 mtx_unlock(&softc->ctl_lock); 5068 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5069 (uintmax_t)lun->lun); 5070 return (1); 5071 } 5072#if 0 5073 if ((softc->aps_locked_lun != 0) 5074 && (softc->aps_locked_lun != lun->lun)) { 5075 printf("%s: attempt to lock LUN %llu when %llu is already " 5076 "locked\n"); 5077 mtx_unlock(&lun->lun_lock); 5078 mtx_unlock(&softc->ctl_lock); 5079 return (1); 5080 } 5081#endif 5082 5083 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5084 (page_index->page_len * CTL_PAGE_CURRENT)); 5085 5086 if (lock != 0) { 5087 current_sp->lock_active = APS_LOCK_ACTIVE; 5088 softc->aps_locked_lun = lun->lun; 5089 } else { 5090 current_sp->lock_active = 0; 5091 softc->aps_locked_lun = 0; 5092 } 5093 5094 5095 /* 5096 * If we're in HA mode, try to send the lock message to the other 5097 * side. 5098 */ 5099 if (ctl_is_single == 0) { 5100 int isc_retval; 5101 union ctl_ha_msg lock_msg; 5102 5103 lock_msg.hdr.nexus = *nexus; 5104 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5105 if (lock != 0) 5106 lock_msg.aps.lock_flag = 1; 5107 else 5108 lock_msg.aps.lock_flag = 0; 5109 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5110 sizeof(lock_msg), 0); 5111 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5112 printf("%s: APS (lock=%d) error returned from " 5113 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5114 mtx_unlock(&lun->lun_lock); 5115 mtx_unlock(&softc->ctl_lock); 5116 return (1); 5117 } 5118 } 5119 5120 mtx_unlock(&lun->lun_lock); 5121 mtx_unlock(&softc->ctl_lock); 5122 5123 return (0); 5124} 5125 5126void 5127ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5128{ 5129 struct ctl_lun *lun; 5130 struct ctl_softc *softc; 5131 int i; 5132 5133 softc = control_softc; 5134 5135 lun = (struct ctl_lun *)be_lun->ctl_lun; 5136 5137 mtx_lock(&lun->lun_lock); 5138 5139 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5140 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 5141 5142 mtx_unlock(&lun->lun_lock); 5143} 5144 5145/* 5146 * Backend "memory move is complete" callback for requests that never 5147 * make it down to say RAIDCore's configuration code. 5148 */ 5149int 5150ctl_config_move_done(union ctl_io *io) 5151{ 5152 int retval; 5153 5154 retval = CTL_RETVAL_COMPLETE; 5155 5156 5157 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5158 /* 5159 * XXX KDM this shouldn't happen, but what if it does? 5160 */ 5161 if (io->io_hdr.io_type != CTL_IO_SCSI) 5162 panic("I/O type isn't CTL_IO_SCSI!"); 5163 5164 if ((io->io_hdr.port_status == 0) 5165 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5166 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5167 io->io_hdr.status = CTL_SUCCESS; 5168 else if ((io->io_hdr.port_status != 0) 5169 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5170 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5171 /* 5172 * For hardware error sense keys, the sense key 5173 * specific value is defined to be a retry count, 5174 * but we use it to pass back an internal FETD 5175 * error code. XXX KDM Hopefully the FETD is only 5176 * using 16 bits for an error code, since that's 5177 * all the space we have in the sks field. 5178 */ 5179 ctl_set_internal_failure(&io->scsiio, 5180 /*sks_valid*/ 1, 5181 /*retry_count*/ 5182 io->io_hdr.port_status); 5183 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5184 free(io->scsiio.kern_data_ptr, M_CTL); 5185 ctl_done(io); 5186 goto bailout; 5187 } 5188 5189 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5190 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5191 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5192 /* 5193 * XXX KDM just assuming a single pointer here, and not a 5194 * S/G list. If we start using S/G lists for config data, 5195 * we'll need to know how to clean them up here as well. 5196 */ 5197 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5198 free(io->scsiio.kern_data_ptr, M_CTL); 5199 /* Hopefully the user has already set the status... */ 5200 ctl_done(io); 5201 } else { 5202 /* 5203 * XXX KDM now we need to continue data movement. Some 5204 * options: 5205 * - call ctl_scsiio() again? We don't do this for data 5206 * writes, because for those at least we know ahead of 5207 * time where the write will go and how long it is. For 5208 * config writes, though, that information is largely 5209 * contained within the write itself, thus we need to 5210 * parse out the data again. 5211 * 5212 * - Call some other function once the data is in? 5213 */ 5214 5215 /* 5216 * XXX KDM call ctl_scsiio() again for now, and check flag 5217 * bits to see whether we're allocated or not. 5218 */ 5219 retval = ctl_scsiio(&io->scsiio); 5220 } 5221bailout: 5222 return (retval); 5223} 5224 5225/* 5226 * This gets called by a backend driver when it is done with a 5227 * data_submit method. 5228 */ 5229void 5230ctl_data_submit_done(union ctl_io *io) 5231{ 5232 /* 5233 * If the IO_CONT flag is set, we need to call the supplied 5234 * function to continue processing the I/O, instead of completing 5235 * the I/O just yet. 5236 * 5237 * If there is an error, though, we don't want to keep processing. 5238 * Instead, just send status back to the initiator. 5239 */ 5240 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5241 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5242 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5243 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5244 io->scsiio.io_cont(io); 5245 return; 5246 } 5247 ctl_done(io); 5248} 5249 5250/* 5251 * This gets called by a backend driver when it is done with a 5252 * configuration write. 5253 */ 5254void 5255ctl_config_write_done(union ctl_io *io) 5256{ 5257 /* 5258 * If the IO_CONT flag is set, we need to call the supplied 5259 * function to continue processing the I/O, instead of completing 5260 * the I/O just yet. 5261 * 5262 * If there is an error, though, we don't want to keep processing. 5263 * Instead, just send status back to the initiator. 5264 */ 5265 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5266 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5267 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5268 io->scsiio.io_cont(io); 5269 return; 5270 } 5271 /* 5272 * Since a configuration write can be done for commands that actually 5273 * have data allocated, like write buffer, and commands that have 5274 * no data, like start/stop unit, we need to check here. 5275 */ 5276 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5277 free(io->scsiio.kern_data_ptr, M_CTL); 5278 ctl_done(io); 5279} 5280 5281/* 5282 * SCSI release command. 5283 */ 5284int 5285ctl_scsi_release(struct ctl_scsiio *ctsio) 5286{ 5287 int length, longid, thirdparty_id, resv_id; 5288 struct ctl_softc *ctl_softc; 5289 struct ctl_lun *lun; 5290 5291 length = 0; 5292 resv_id = 0; 5293 5294 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5295 5296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5297 ctl_softc = control_softc; 5298 5299 switch (ctsio->cdb[0]) { 5300 case RELEASE_10: { 5301 struct scsi_release_10 *cdb; 5302 5303 cdb = (struct scsi_release_10 *)ctsio->cdb; 5304 5305 if (cdb->byte2 & SR10_LONGID) 5306 longid = 1; 5307 else 5308 thirdparty_id = cdb->thirdparty_id; 5309 5310 resv_id = cdb->resv_id; 5311 length = scsi_2btoul(cdb->length); 5312 break; 5313 } 5314 } 5315 5316 5317 /* 5318 * XXX KDM right now, we only support LUN reservation. We don't 5319 * support 3rd party reservations, or extent reservations, which 5320 * might actually need the parameter list. If we've gotten this 5321 * far, we've got a LUN reservation. Anything else got kicked out 5322 * above. So, according to SPC, ignore the length. 5323 */ 5324 length = 0; 5325 5326 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5327 && (length > 0)) { 5328 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5329 ctsio->kern_data_len = length; 5330 ctsio->kern_total_len = length; 5331 ctsio->kern_data_resid = 0; 5332 ctsio->kern_rel_offset = 0; 5333 ctsio->kern_sg_entries = 0; 5334 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5335 ctsio->be_move_done = ctl_config_move_done; 5336 ctl_datamove((union ctl_io *)ctsio); 5337 5338 return (CTL_RETVAL_COMPLETE); 5339 } 5340 5341 if (length > 0) 5342 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5343 5344 mtx_lock(&lun->lun_lock); 5345 5346 /* 5347 * According to SPC, it is not an error for an intiator to attempt 5348 * to release a reservation on a LUN that isn't reserved, or that 5349 * is reserved by another initiator. The reservation can only be 5350 * released, though, by the initiator who made it or by one of 5351 * several reset type events. 5352 */ 5353 if (lun->flags & CTL_LUN_RESERVED) { 5354 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5355 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5356 && (ctsio->io_hdr.nexus.targ_target.id == 5357 lun->rsv_nexus.targ_target.id)) { 5358 lun->flags &= ~CTL_LUN_RESERVED; 5359 } 5360 } 5361 5362 mtx_unlock(&lun->lun_lock); 5363 5364 ctsio->scsi_status = SCSI_STATUS_OK; 5365 ctsio->io_hdr.status = CTL_SUCCESS; 5366 5367 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5368 free(ctsio->kern_data_ptr, M_CTL); 5369 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5370 } 5371 5372 ctl_done((union ctl_io *)ctsio); 5373 return (CTL_RETVAL_COMPLETE); 5374} 5375 5376int 5377ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5378{ 5379 int extent, thirdparty, longid; 5380 int resv_id, length; 5381 uint64_t thirdparty_id; 5382 struct ctl_softc *ctl_softc; 5383 struct ctl_lun *lun; 5384 5385 extent = 0; 5386 thirdparty = 0; 5387 longid = 0; 5388 resv_id = 0; 5389 length = 0; 5390 thirdparty_id = 0; 5391 5392 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5393 5394 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5395 ctl_softc = control_softc; 5396 5397 switch (ctsio->cdb[0]) { 5398 case RESERVE_10: { 5399 struct scsi_reserve_10 *cdb; 5400 5401 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5402 5403 if (cdb->byte2 & SR10_LONGID) 5404 longid = 1; 5405 else 5406 thirdparty_id = cdb->thirdparty_id; 5407 5408 resv_id = cdb->resv_id; 5409 length = scsi_2btoul(cdb->length); 5410 break; 5411 } 5412 } 5413 5414 /* 5415 * XXX KDM right now, we only support LUN reservation. We don't 5416 * support 3rd party reservations, or extent reservations, which 5417 * might actually need the parameter list. If we've gotten this 5418 * far, we've got a LUN reservation. Anything else got kicked out 5419 * above. So, according to SPC, ignore the length. 5420 */ 5421 length = 0; 5422 5423 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5424 && (length > 0)) { 5425 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5426 ctsio->kern_data_len = length; 5427 ctsio->kern_total_len = length; 5428 ctsio->kern_data_resid = 0; 5429 ctsio->kern_rel_offset = 0; 5430 ctsio->kern_sg_entries = 0; 5431 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5432 ctsio->be_move_done = ctl_config_move_done; 5433 ctl_datamove((union ctl_io *)ctsio); 5434 5435 return (CTL_RETVAL_COMPLETE); 5436 } 5437 5438 if (length > 0) 5439 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5440 5441 mtx_lock(&lun->lun_lock); 5442 if (lun->flags & CTL_LUN_RESERVED) { 5443 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5444 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5445 || (ctsio->io_hdr.nexus.targ_target.id != 5446 lun->rsv_nexus.targ_target.id)) { 5447 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5448 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5449 goto bailout; 5450 } 5451 } 5452 5453 lun->flags |= CTL_LUN_RESERVED; 5454 lun->rsv_nexus = ctsio->io_hdr.nexus; 5455 5456 ctsio->scsi_status = SCSI_STATUS_OK; 5457 ctsio->io_hdr.status = CTL_SUCCESS; 5458 5459bailout: 5460 mtx_unlock(&lun->lun_lock); 5461 5462 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5463 free(ctsio->kern_data_ptr, M_CTL); 5464 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5465 } 5466 5467 ctl_done((union ctl_io *)ctsio); 5468 return (CTL_RETVAL_COMPLETE); 5469} 5470 5471int 5472ctl_start_stop(struct ctl_scsiio *ctsio) 5473{ 5474 struct scsi_start_stop_unit *cdb; 5475 struct ctl_lun *lun; 5476 struct ctl_softc *ctl_softc; 5477 int retval; 5478 5479 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5480 5481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5482 ctl_softc = control_softc; 5483 retval = 0; 5484 5485 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5486 5487 /* 5488 * XXX KDM 5489 * We don't support the immediate bit on a stop unit. In order to 5490 * do that, we would need to code up a way to know that a stop is 5491 * pending, and hold off any new commands until it completes, one 5492 * way or another. Then we could accept or reject those commands 5493 * depending on its status. We would almost need to do the reverse 5494 * of what we do below for an immediate start -- return the copy of 5495 * the ctl_io to the FETD with status to send to the host (and to 5496 * free the copy!) and then free the original I/O once the stop 5497 * actually completes. That way, the OOA queue mechanism can work 5498 * to block commands that shouldn't proceed. Another alternative 5499 * would be to put the copy in the queue in place of the original, 5500 * and return the original back to the caller. That could be 5501 * slightly safer.. 5502 */ 5503 if ((cdb->byte2 & SSS_IMMED) 5504 && ((cdb->how & SSS_START) == 0)) { 5505 ctl_set_invalid_field(ctsio, 5506 /*sks_valid*/ 1, 5507 /*command*/ 1, 5508 /*field*/ 1, 5509 /*bit_valid*/ 1, 5510 /*bit*/ 0); 5511 ctl_done((union ctl_io *)ctsio); 5512 return (CTL_RETVAL_COMPLETE); 5513 } 5514 5515 if ((lun->flags & CTL_LUN_PR_RESERVED) 5516 && ((cdb->how & SSS_START)==0)) { 5517 uint32_t residx; 5518 5519 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5520 if (!lun->per_res[residx].registered 5521 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5522 5523 ctl_set_reservation_conflict(ctsio); 5524 ctl_done((union ctl_io *)ctsio); 5525 return (CTL_RETVAL_COMPLETE); 5526 } 5527 } 5528 5529 /* 5530 * If there is no backend on this device, we can't start or stop 5531 * it. In theory we shouldn't get any start/stop commands in the 5532 * first place at this level if the LUN doesn't have a backend. 5533 * That should get stopped by the command decode code. 5534 */ 5535 if (lun->backend == NULL) { 5536 ctl_set_invalid_opcode(ctsio); 5537 ctl_done((union ctl_io *)ctsio); 5538 return (CTL_RETVAL_COMPLETE); 5539 } 5540 5541 /* 5542 * XXX KDM Copan-specific offline behavior. 5543 * Figure out a reasonable way to port this? 5544 */ 5545#ifdef NEEDTOPORT 5546 mtx_lock(&lun->lun_lock); 5547 5548 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5549 && (lun->flags & CTL_LUN_OFFLINE)) { 5550 /* 5551 * If the LUN is offline, and the on/offline bit isn't set, 5552 * reject the start or stop. Otherwise, let it through. 5553 */ 5554 mtx_unlock(&lun->lun_lock); 5555 ctl_set_lun_not_ready(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 } else { 5558 mtx_unlock(&lun->lun_lock); 5559#endif /* NEEDTOPORT */ 5560 /* 5561 * This could be a start or a stop when we're online, 5562 * or a stop/offline or start/online. A start or stop when 5563 * we're offline is covered in the case above. 5564 */ 5565 /* 5566 * In the non-immediate case, we send the request to 5567 * the backend and return status to the user when 5568 * it is done. 5569 * 5570 * In the immediate case, we allocate a new ctl_io 5571 * to hold a copy of the request, and send that to 5572 * the backend. We then set good status on the 5573 * user's request and return it immediately. 5574 */ 5575 if (cdb->byte2 & SSS_IMMED) { 5576 union ctl_io *new_io; 5577 5578 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5579 if (new_io == NULL) { 5580 ctl_set_busy(ctsio); 5581 ctl_done((union ctl_io *)ctsio); 5582 } else { 5583 ctl_copy_io((union ctl_io *)ctsio, 5584 new_io); 5585 retval = lun->backend->config_write(new_io); 5586 ctl_set_success(ctsio); 5587 ctl_done((union ctl_io *)ctsio); 5588 } 5589 } else { 5590 retval = lun->backend->config_write( 5591 (union ctl_io *)ctsio); 5592 } 5593#ifdef NEEDTOPORT 5594 } 5595#endif 5596 return (retval); 5597} 5598 5599/* 5600 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5601 * we don't really do anything with the LBA and length fields if the user 5602 * passes them in. Instead we'll just flush out the cache for the entire 5603 * LUN. 5604 */ 5605int 5606ctl_sync_cache(struct ctl_scsiio *ctsio) 5607{ 5608 struct ctl_lun *lun; 5609 struct ctl_softc *ctl_softc; 5610 uint64_t starting_lba; 5611 uint32_t block_count; 5612 int retval; 5613 5614 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5615 5616 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5617 ctl_softc = control_softc; 5618 retval = 0; 5619 5620 switch (ctsio->cdb[0]) { 5621 case SYNCHRONIZE_CACHE: { 5622 struct scsi_sync_cache *cdb; 5623 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5624 5625 starting_lba = scsi_4btoul(cdb->begin_lba); 5626 block_count = scsi_2btoul(cdb->lb_count); 5627 break; 5628 } 5629 case SYNCHRONIZE_CACHE_16: { 5630 struct scsi_sync_cache_16 *cdb; 5631 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5632 5633 starting_lba = scsi_8btou64(cdb->begin_lba); 5634 block_count = scsi_4btoul(cdb->lb_count); 5635 break; 5636 } 5637 default: 5638 ctl_set_invalid_opcode(ctsio); 5639 ctl_done((union ctl_io *)ctsio); 5640 goto bailout; 5641 break; /* NOTREACHED */ 5642 } 5643 5644 /* 5645 * We check the LBA and length, but don't do anything with them. 5646 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5647 * get flushed. This check will just help satisfy anyone who wants 5648 * to see an error for an out of range LBA. 5649 */ 5650 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5651 ctl_set_lba_out_of_range(ctsio); 5652 ctl_done((union ctl_io *)ctsio); 5653 goto bailout; 5654 } 5655 5656 /* 5657 * If this LUN has no backend, we can't flush the cache anyway. 5658 */ 5659 if (lun->backend == NULL) { 5660 ctl_set_invalid_opcode(ctsio); 5661 ctl_done((union ctl_io *)ctsio); 5662 goto bailout; 5663 } 5664 5665 /* 5666 * Check to see whether we're configured to send the SYNCHRONIZE 5667 * CACHE command directly to the back end. 5668 */ 5669 mtx_lock(&lun->lun_lock); 5670 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5671 && (++(lun->sync_count) >= lun->sync_interval)) { 5672 lun->sync_count = 0; 5673 mtx_unlock(&lun->lun_lock); 5674 retval = lun->backend->config_write((union ctl_io *)ctsio); 5675 } else { 5676 mtx_unlock(&lun->lun_lock); 5677 ctl_set_success(ctsio); 5678 ctl_done((union ctl_io *)ctsio); 5679 } 5680 5681bailout: 5682 5683 return (retval); 5684} 5685 5686int 5687ctl_format(struct ctl_scsiio *ctsio) 5688{ 5689 struct scsi_format *cdb; 5690 struct ctl_lun *lun; 5691 struct ctl_softc *ctl_softc; 5692 int length, defect_list_len; 5693 5694 CTL_DEBUG_PRINT(("ctl_format\n")); 5695 5696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5697 ctl_softc = control_softc; 5698 5699 cdb = (struct scsi_format *)ctsio->cdb; 5700 5701 length = 0; 5702 if (cdb->byte2 & SF_FMTDATA) { 5703 if (cdb->byte2 & SF_LONGLIST) 5704 length = sizeof(struct scsi_format_header_long); 5705 else 5706 length = sizeof(struct scsi_format_header_short); 5707 } 5708 5709 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5710 && (length > 0)) { 5711 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5712 ctsio->kern_data_len = length; 5713 ctsio->kern_total_len = length; 5714 ctsio->kern_data_resid = 0; 5715 ctsio->kern_rel_offset = 0; 5716 ctsio->kern_sg_entries = 0; 5717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5718 ctsio->be_move_done = ctl_config_move_done; 5719 ctl_datamove((union ctl_io *)ctsio); 5720 5721 return (CTL_RETVAL_COMPLETE); 5722 } 5723 5724 defect_list_len = 0; 5725 5726 if (cdb->byte2 & SF_FMTDATA) { 5727 if (cdb->byte2 & SF_LONGLIST) { 5728 struct scsi_format_header_long *header; 5729 5730 header = (struct scsi_format_header_long *) 5731 ctsio->kern_data_ptr; 5732 5733 defect_list_len = scsi_4btoul(header->defect_list_len); 5734 if (defect_list_len != 0) { 5735 ctl_set_invalid_field(ctsio, 5736 /*sks_valid*/ 1, 5737 /*command*/ 0, 5738 /*field*/ 2, 5739 /*bit_valid*/ 0, 5740 /*bit*/ 0); 5741 goto bailout; 5742 } 5743 } else { 5744 struct scsi_format_header_short *header; 5745 5746 header = (struct scsi_format_header_short *) 5747 ctsio->kern_data_ptr; 5748 5749 defect_list_len = scsi_2btoul(header->defect_list_len); 5750 if (defect_list_len != 0) { 5751 ctl_set_invalid_field(ctsio, 5752 /*sks_valid*/ 1, 5753 /*command*/ 0, 5754 /*field*/ 2, 5755 /*bit_valid*/ 0, 5756 /*bit*/ 0); 5757 goto bailout; 5758 } 5759 } 5760 } 5761 5762 /* 5763 * The format command will clear out the "Medium format corrupted" 5764 * status if set by the configuration code. That status is really 5765 * just a way to notify the host that we have lost the media, and 5766 * get them to issue a command that will basically make them think 5767 * they're blowing away the media. 5768 */ 5769 mtx_lock(&lun->lun_lock); 5770 lun->flags &= ~CTL_LUN_INOPERABLE; 5771 mtx_unlock(&lun->lun_lock); 5772 5773 ctsio->scsi_status = SCSI_STATUS_OK; 5774 ctsio->io_hdr.status = CTL_SUCCESS; 5775bailout: 5776 5777 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5778 free(ctsio->kern_data_ptr, M_CTL); 5779 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5780 } 5781 5782 ctl_done((union ctl_io *)ctsio); 5783 return (CTL_RETVAL_COMPLETE); 5784} 5785 5786int 5787ctl_read_buffer(struct ctl_scsiio *ctsio) 5788{ 5789 struct scsi_read_buffer *cdb; 5790 struct ctl_lun *lun; 5791 int buffer_offset, len; 5792 static uint8_t descr[4]; 5793 static uint8_t echo_descr[4] = { 0 }; 5794 5795 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5796 5797 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5798 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5799 5800 if (lun->flags & CTL_LUN_PR_RESERVED) { 5801 uint32_t residx; 5802 5803 /* 5804 * XXX KDM need a lock here. 5805 */ 5806 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5807 if ((lun->res_type == SPR_TYPE_EX_AC 5808 && residx != lun->pr_res_idx) 5809 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5810 || lun->res_type == SPR_TYPE_EX_AC_AR) 5811 && !lun->per_res[residx].registered)) { 5812 ctl_set_reservation_conflict(ctsio); 5813 ctl_done((union ctl_io *)ctsio); 5814 return (CTL_RETVAL_COMPLETE); 5815 } 5816 } 5817 5818 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5819 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5820 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5821 ctl_set_invalid_field(ctsio, 5822 /*sks_valid*/ 1, 5823 /*command*/ 1, 5824 /*field*/ 1, 5825 /*bit_valid*/ 1, 5826 /*bit*/ 4); 5827 ctl_done((union ctl_io *)ctsio); 5828 return (CTL_RETVAL_COMPLETE); 5829 } 5830 5831 len = scsi_3btoul(cdb->length); 5832 buffer_offset = scsi_3btoul(cdb->offset); 5833 5834 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5835 ctl_set_invalid_field(ctsio, 5836 /*sks_valid*/ 1, 5837 /*command*/ 1, 5838 /*field*/ 6, 5839 /*bit_valid*/ 0, 5840 /*bit*/ 0); 5841 ctl_done((union ctl_io *)ctsio); 5842 return (CTL_RETVAL_COMPLETE); 5843 } 5844 5845 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5846 descr[0] = 0; 5847 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5848 ctsio->kern_data_ptr = descr; 5849 len = min(len, sizeof(descr)); 5850 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5851 ctsio->kern_data_ptr = echo_descr; 5852 len = min(len, sizeof(echo_descr)); 5853 } else 5854 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5855 ctsio->kern_data_len = len; 5856 ctsio->kern_total_len = len; 5857 ctsio->kern_data_resid = 0; 5858 ctsio->kern_rel_offset = 0; 5859 ctsio->kern_sg_entries = 0; 5860 ctsio->be_move_done = ctl_config_move_done; 5861 ctl_datamove((union ctl_io *)ctsio); 5862 5863 return (CTL_RETVAL_COMPLETE); 5864} 5865 5866int 5867ctl_write_buffer(struct ctl_scsiio *ctsio) 5868{ 5869 struct scsi_write_buffer *cdb; 5870 struct ctl_lun *lun; 5871 int buffer_offset, len; 5872 5873 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5874 5875 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5876 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5877 5878 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5879 ctl_set_invalid_field(ctsio, 5880 /*sks_valid*/ 1, 5881 /*command*/ 1, 5882 /*field*/ 1, 5883 /*bit_valid*/ 1, 5884 /*bit*/ 4); 5885 ctl_done((union ctl_io *)ctsio); 5886 return (CTL_RETVAL_COMPLETE); 5887 } 5888 5889 len = scsi_3btoul(cdb->length); 5890 buffer_offset = scsi_3btoul(cdb->offset); 5891 5892 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5893 ctl_set_invalid_field(ctsio, 5894 /*sks_valid*/ 1, 5895 /*command*/ 1, 5896 /*field*/ 6, 5897 /*bit_valid*/ 0, 5898 /*bit*/ 0); 5899 ctl_done((union ctl_io *)ctsio); 5900 return (CTL_RETVAL_COMPLETE); 5901 } 5902 5903 /* 5904 * If we've got a kernel request that hasn't been malloced yet, 5905 * malloc it and tell the caller the data buffer is here. 5906 */ 5907 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5908 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5909 ctsio->kern_data_len = len; 5910 ctsio->kern_total_len = len; 5911 ctsio->kern_data_resid = 0; 5912 ctsio->kern_rel_offset = 0; 5913 ctsio->kern_sg_entries = 0; 5914 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5915 ctsio->be_move_done = ctl_config_move_done; 5916 ctl_datamove((union ctl_io *)ctsio); 5917 5918 return (CTL_RETVAL_COMPLETE); 5919 } 5920 5921 ctl_done((union ctl_io *)ctsio); 5922 5923 return (CTL_RETVAL_COMPLETE); 5924} 5925 5926int 5927ctl_write_same(struct ctl_scsiio *ctsio) 5928{ 5929 struct ctl_lun *lun; 5930 struct ctl_lba_len_flags *lbalen; 5931 uint64_t lba; 5932 uint32_t num_blocks; 5933 int len, retval; 5934 uint8_t byte2; 5935 5936 retval = CTL_RETVAL_COMPLETE; 5937 5938 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5939 5940 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5941 5942 switch (ctsio->cdb[0]) { 5943 case WRITE_SAME_10: { 5944 struct scsi_write_same_10 *cdb; 5945 5946 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5947 5948 lba = scsi_4btoul(cdb->addr); 5949 num_blocks = scsi_2btoul(cdb->length); 5950 byte2 = cdb->byte2; 5951 break; 5952 } 5953 case WRITE_SAME_16: { 5954 struct scsi_write_same_16 *cdb; 5955 5956 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5957 5958 lba = scsi_8btou64(cdb->addr); 5959 num_blocks = scsi_4btoul(cdb->length); 5960 byte2 = cdb->byte2; 5961 break; 5962 } 5963 default: 5964 /* 5965 * We got a command we don't support. This shouldn't 5966 * happen, commands should be filtered out above us. 5967 */ 5968 ctl_set_invalid_opcode(ctsio); 5969 ctl_done((union ctl_io *)ctsio); 5970 5971 return (CTL_RETVAL_COMPLETE); 5972 break; /* NOTREACHED */ 5973 } 5974 5975 /* 5976 * The first check is to make sure we're in bounds, the second 5977 * check is to catch wrap-around problems. If the lba + num blocks 5978 * is less than the lba, then we've wrapped around and the block 5979 * range is invalid anyway. 5980 */ 5981 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5982 || ((lba + num_blocks) < lba)) { 5983 ctl_set_lba_out_of_range(ctsio); 5984 ctl_done((union ctl_io *)ctsio); 5985 return (CTL_RETVAL_COMPLETE); 5986 } 5987 5988 /* Zero number of blocks means "to the last logical block" */ 5989 if (num_blocks == 0) { 5990 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5991 ctl_set_invalid_field(ctsio, 5992 /*sks_valid*/ 0, 5993 /*command*/ 1, 5994 /*field*/ 0, 5995 /*bit_valid*/ 0, 5996 /*bit*/ 0); 5997 ctl_done((union ctl_io *)ctsio); 5998 return (CTL_RETVAL_COMPLETE); 5999 } 6000 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6001 } 6002 6003 len = lun->be_lun->blocksize; 6004 6005 /* 6006 * If we've got a kernel request that hasn't been malloced yet, 6007 * malloc it and tell the caller the data buffer is here. 6008 */ 6009 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6010 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6011 ctsio->kern_data_len = len; 6012 ctsio->kern_total_len = len; 6013 ctsio->kern_data_resid = 0; 6014 ctsio->kern_rel_offset = 0; 6015 ctsio->kern_sg_entries = 0; 6016 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6017 ctsio->be_move_done = ctl_config_move_done; 6018 ctl_datamove((union ctl_io *)ctsio); 6019 6020 return (CTL_RETVAL_COMPLETE); 6021 } 6022 6023 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6024 lbalen->lba = lba; 6025 lbalen->len = num_blocks; 6026 lbalen->flags = byte2; 6027 retval = lun->backend->config_write((union ctl_io *)ctsio); 6028 6029 return (retval); 6030} 6031 6032int 6033ctl_unmap(struct ctl_scsiio *ctsio) 6034{ 6035 struct ctl_lun *lun; 6036 struct scsi_unmap *cdb; 6037 struct ctl_ptr_len_flags *ptrlen; 6038 struct scsi_unmap_header *hdr; 6039 struct scsi_unmap_desc *buf, *end; 6040 uint64_t lba; 6041 uint32_t num_blocks; 6042 int len, retval; 6043 uint8_t byte2; 6044 6045 retval = CTL_RETVAL_COMPLETE; 6046 6047 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6048 6049 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6050 cdb = (struct scsi_unmap *)ctsio->cdb; 6051 6052 len = scsi_2btoul(cdb->length); 6053 byte2 = cdb->byte2; 6054 6055 /* 6056 * If we've got a kernel request that hasn't been malloced yet, 6057 * malloc it and tell the caller the data buffer is here. 6058 */ 6059 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6060 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6061 ctsio->kern_data_len = len; 6062 ctsio->kern_total_len = len; 6063 ctsio->kern_data_resid = 0; 6064 ctsio->kern_rel_offset = 0; 6065 ctsio->kern_sg_entries = 0; 6066 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6067 ctsio->be_move_done = ctl_config_move_done; 6068 ctl_datamove((union ctl_io *)ctsio); 6069 6070 return (CTL_RETVAL_COMPLETE); 6071 } 6072 6073 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6074 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6075 if (len < sizeof (*hdr) || 6076 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6077 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6078 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6079 ctl_set_invalid_field(ctsio, 6080 /*sks_valid*/ 0, 6081 /*command*/ 0, 6082 /*field*/ 0, 6083 /*bit_valid*/ 0, 6084 /*bit*/ 0); 6085 ctl_done((union ctl_io *)ctsio); 6086 return (CTL_RETVAL_COMPLETE); 6087 } 6088 len = scsi_2btoul(hdr->desc_length); 6089 buf = (struct scsi_unmap_desc *)(hdr + 1); 6090 end = buf + len / sizeof(*buf); 6091 6092 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6093 ptrlen->ptr = (void *)buf; 6094 ptrlen->len = len; 6095 ptrlen->flags = byte2; 6096 6097 for (; buf < end; buf++) { 6098 lba = scsi_8btou64(buf->lba); 6099 num_blocks = scsi_4btoul(buf->length); 6100 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6101 || ((lba + num_blocks) < lba)) { 6102 ctl_set_lba_out_of_range(ctsio); 6103 ctl_done((union ctl_io *)ctsio); 6104 return (CTL_RETVAL_COMPLETE); 6105 } 6106 } 6107 6108 retval = lun->backend->config_write((union ctl_io *)ctsio); 6109 6110 return (retval); 6111} 6112 6113/* 6114 * Note that this function currently doesn't actually do anything inside 6115 * CTL to enforce things if the DQue bit is turned on. 6116 * 6117 * Also note that this function can't be used in the default case, because 6118 * the DQue bit isn't set in the changeable mask for the control mode page 6119 * anyway. This is just here as an example for how to implement a page 6120 * handler, and a placeholder in case we want to allow the user to turn 6121 * tagged queueing on and off. 6122 * 6123 * The D_SENSE bit handling is functional, however, and will turn 6124 * descriptor sense on and off for a given LUN. 6125 */ 6126int 6127ctl_control_page_handler(struct ctl_scsiio *ctsio, 6128 struct ctl_page_index *page_index, uint8_t *page_ptr) 6129{ 6130 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6131 struct ctl_lun *lun; 6132 struct ctl_softc *softc; 6133 int set_ua; 6134 uint32_t initidx; 6135 6136 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6137 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6138 set_ua = 0; 6139 6140 user_cp = (struct scsi_control_page *)page_ptr; 6141 current_cp = (struct scsi_control_page *) 6142 (page_index->page_data + (page_index->page_len * 6143 CTL_PAGE_CURRENT)); 6144 saved_cp = (struct scsi_control_page *) 6145 (page_index->page_data + (page_index->page_len * 6146 CTL_PAGE_SAVED)); 6147 6148 softc = control_softc; 6149 6150 mtx_lock(&lun->lun_lock); 6151 if (((current_cp->rlec & SCP_DSENSE) == 0) 6152 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6153 /* 6154 * Descriptor sense is currently turned off and the user 6155 * wants to turn it on. 6156 */ 6157 current_cp->rlec |= SCP_DSENSE; 6158 saved_cp->rlec |= SCP_DSENSE; 6159 lun->flags |= CTL_LUN_SENSE_DESC; 6160 set_ua = 1; 6161 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6162 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6163 /* 6164 * Descriptor sense is currently turned on, and the user 6165 * wants to turn it off. 6166 */ 6167 current_cp->rlec &= ~SCP_DSENSE; 6168 saved_cp->rlec &= ~SCP_DSENSE; 6169 lun->flags &= ~CTL_LUN_SENSE_DESC; 6170 set_ua = 1; 6171 } 6172 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6173 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6174#ifdef NEEDTOPORT 6175 csevent_log(CSC_CTL | CSC_SHELF_SW | 6176 CTL_UNTAG_TO_UNTAG, 6177 csevent_LogType_Trace, 6178 csevent_Severity_Information, 6179 csevent_AlertLevel_Green, 6180 csevent_FRU_Firmware, 6181 csevent_FRU_Unknown, 6182 "Received untagged to untagged transition"); 6183#endif /* NEEDTOPORT */ 6184 } else { 6185#ifdef NEEDTOPORT 6186 csevent_log(CSC_CTL | CSC_SHELF_SW | 6187 CTL_UNTAG_TO_TAG, 6188 csevent_LogType_ConfigChange, 6189 csevent_Severity_Information, 6190 csevent_AlertLevel_Green, 6191 csevent_FRU_Firmware, 6192 csevent_FRU_Unknown, 6193 "Received untagged to tagged " 6194 "queueing transition"); 6195#endif /* NEEDTOPORT */ 6196 6197 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6198 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6199 set_ua = 1; 6200 } 6201 } else { 6202 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6203#ifdef NEEDTOPORT 6204 csevent_log(CSC_CTL | CSC_SHELF_SW | 6205 CTL_TAG_TO_UNTAG, 6206 csevent_LogType_ConfigChange, 6207 csevent_Severity_Warning, 6208 csevent_AlertLevel_Yellow, 6209 csevent_FRU_Firmware, 6210 csevent_FRU_Unknown, 6211 "Received tagged queueing to untagged " 6212 "transition"); 6213#endif /* NEEDTOPORT */ 6214 6215 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6216 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6217 set_ua = 1; 6218 } else { 6219#ifdef NEEDTOPORT 6220 csevent_log(CSC_CTL | CSC_SHELF_SW | 6221 CTL_TAG_TO_TAG, 6222 csevent_LogType_Trace, 6223 csevent_Severity_Information, 6224 csevent_AlertLevel_Green, 6225 csevent_FRU_Firmware, 6226 csevent_FRU_Unknown, 6227 "Received tagged queueing to tagged " 6228 "queueing transition"); 6229#endif /* NEEDTOPORT */ 6230 } 6231 } 6232 if (set_ua != 0) { 6233 int i; 6234 /* 6235 * Let other initiators know that the mode 6236 * parameters for this LUN have changed. 6237 */ 6238 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6239 if (i == initidx) 6240 continue; 6241 6242 lun->pending_sense[i].ua_pending |= 6243 CTL_UA_MODE_CHANGE; 6244 } 6245 } 6246 mtx_unlock(&lun->lun_lock); 6247 6248 return (0); 6249} 6250 6251int 6252ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6253 struct ctl_page_index *page_index, uint8_t *page_ptr) 6254{ 6255 return (0); 6256} 6257 6258int 6259ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6260 struct ctl_page_index *page_index, int pc) 6261{ 6262 struct copan_power_subpage *page; 6263 6264 page = (struct copan_power_subpage *)page_index->page_data + 6265 (page_index->page_len * pc); 6266 6267 switch (pc) { 6268 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6269 /* 6270 * We don't update the changable bits for this page. 6271 */ 6272 break; 6273 case SMS_PAGE_CTRL_CURRENT >> 6: 6274 case SMS_PAGE_CTRL_DEFAULT >> 6: 6275 case SMS_PAGE_CTRL_SAVED >> 6: 6276#ifdef NEEDTOPORT 6277 ctl_update_power_subpage(page); 6278#endif 6279 break; 6280 default: 6281#ifdef NEEDTOPORT 6282 EPRINT(0, "Invalid PC %d!!", pc); 6283#endif 6284 break; 6285 } 6286 return (0); 6287} 6288 6289 6290int 6291ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6292 struct ctl_page_index *page_index, uint8_t *page_ptr) 6293{ 6294 struct copan_aps_subpage *user_sp; 6295 struct copan_aps_subpage *current_sp; 6296 union ctl_modepage_info *modepage_info; 6297 struct ctl_softc *softc; 6298 struct ctl_lun *lun; 6299 int retval; 6300 6301 retval = CTL_RETVAL_COMPLETE; 6302 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6303 (page_index->page_len * CTL_PAGE_CURRENT)); 6304 softc = control_softc; 6305 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6306 6307 user_sp = (struct copan_aps_subpage *)page_ptr; 6308 6309 modepage_info = (union ctl_modepage_info *) 6310 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6311 6312 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6313 modepage_info->header.subpage = page_index->subpage; 6314 modepage_info->aps.lock_active = user_sp->lock_active; 6315 6316 mtx_lock(&softc->ctl_lock); 6317 6318 /* 6319 * If there is a request to lock the LUN and another LUN is locked 6320 * this is an error. If the requested LUN is already locked ignore 6321 * the request. If no LUN is locked attempt to lock it. 6322 * if there is a request to unlock the LUN and the LUN is currently 6323 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6324 * if another LUN is locked or no LUN is locked. 6325 */ 6326 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6327 if (softc->aps_locked_lun == lun->lun) { 6328 /* 6329 * This LUN is already locked, so we're done. 6330 */ 6331 retval = CTL_RETVAL_COMPLETE; 6332 } else if (softc->aps_locked_lun == 0) { 6333 /* 6334 * No one has the lock, pass the request to the 6335 * backend. 6336 */ 6337 retval = lun->backend->config_write( 6338 (union ctl_io *)ctsio); 6339 } else { 6340 /* 6341 * Someone else has the lock, throw out the request. 6342 */ 6343 ctl_set_already_locked(ctsio); 6344 free(ctsio->kern_data_ptr, M_CTL); 6345 ctl_done((union ctl_io *)ctsio); 6346 6347 /* 6348 * Set the return value so that ctl_do_mode_select() 6349 * won't try to complete the command. We already 6350 * completed it here. 6351 */ 6352 retval = CTL_RETVAL_ERROR; 6353 } 6354 } else if (softc->aps_locked_lun == lun->lun) { 6355 /* 6356 * This LUN is locked, so pass the unlock request to the 6357 * backend. 6358 */ 6359 retval = lun->backend->config_write((union ctl_io *)ctsio); 6360 } 6361 mtx_unlock(&softc->ctl_lock); 6362 6363 return (retval); 6364} 6365 6366int 6367ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6368 struct ctl_page_index *page_index, 6369 uint8_t *page_ptr) 6370{ 6371 uint8_t *c; 6372 int i; 6373 6374 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6375 ctl_time_io_secs = 6376 (c[0] << 8) | 6377 (c[1] << 0) | 6378 0; 6379 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6380 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6381 printf("page data:"); 6382 for (i=0; i<8; i++) 6383 printf(" %.2x",page_ptr[i]); 6384 printf("\n"); 6385 return (0); 6386} 6387 6388int 6389ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6390 struct ctl_page_index *page_index, 6391 int pc) 6392{ 6393 struct copan_debugconf_subpage *page; 6394 6395 page = (struct copan_debugconf_subpage *)page_index->page_data + 6396 (page_index->page_len * pc); 6397 6398 switch (pc) { 6399 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6400 case SMS_PAGE_CTRL_DEFAULT >> 6: 6401 case SMS_PAGE_CTRL_SAVED >> 6: 6402 /* 6403 * We don't update the changable or default bits for this page. 6404 */ 6405 break; 6406 case SMS_PAGE_CTRL_CURRENT >> 6: 6407 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6408 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6409 break; 6410 default: 6411#ifdef NEEDTOPORT 6412 EPRINT(0, "Invalid PC %d!!", pc); 6413#endif /* NEEDTOPORT */ 6414 break; 6415 } 6416 return (0); 6417} 6418 6419 6420static int 6421ctl_do_mode_select(union ctl_io *io) 6422{ 6423 struct scsi_mode_page_header *page_header; 6424 struct ctl_page_index *page_index; 6425 struct ctl_scsiio *ctsio; 6426 int control_dev, page_len; 6427 int page_len_offset, page_len_size; 6428 union ctl_modepage_info *modepage_info; 6429 struct ctl_lun *lun; 6430 int *len_left, *len_used; 6431 int retval, i; 6432 6433 ctsio = &io->scsiio; 6434 page_index = NULL; 6435 page_len = 0; 6436 retval = CTL_RETVAL_COMPLETE; 6437 6438 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6439 6440 if (lun->be_lun->lun_type != T_DIRECT) 6441 control_dev = 1; 6442 else 6443 control_dev = 0; 6444 6445 modepage_info = (union ctl_modepage_info *) 6446 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6447 len_left = &modepage_info->header.len_left; 6448 len_used = &modepage_info->header.len_used; 6449 6450do_next_page: 6451 6452 page_header = (struct scsi_mode_page_header *) 6453 (ctsio->kern_data_ptr + *len_used); 6454 6455 if (*len_left == 0) { 6456 free(ctsio->kern_data_ptr, M_CTL); 6457 ctl_set_success(ctsio); 6458 ctl_done((union ctl_io *)ctsio); 6459 return (CTL_RETVAL_COMPLETE); 6460 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6461 6462 free(ctsio->kern_data_ptr, M_CTL); 6463 ctl_set_param_len_error(ctsio); 6464 ctl_done((union ctl_io *)ctsio); 6465 return (CTL_RETVAL_COMPLETE); 6466 6467 } else if ((page_header->page_code & SMPH_SPF) 6468 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6469 6470 free(ctsio->kern_data_ptr, M_CTL); 6471 ctl_set_param_len_error(ctsio); 6472 ctl_done((union ctl_io *)ctsio); 6473 return (CTL_RETVAL_COMPLETE); 6474 } 6475 6476 6477 /* 6478 * XXX KDM should we do something with the block descriptor? 6479 */ 6480 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6481 6482 if ((control_dev != 0) 6483 && (lun->mode_pages.index[i].page_flags & 6484 CTL_PAGE_FLAG_DISK_ONLY)) 6485 continue; 6486 6487 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6488 (page_header->page_code & SMPH_PC_MASK)) 6489 continue; 6490 6491 /* 6492 * If neither page has a subpage code, then we've got a 6493 * match. 6494 */ 6495 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6496 && ((page_header->page_code & SMPH_SPF) == 0)) { 6497 page_index = &lun->mode_pages.index[i]; 6498 page_len = page_header->page_length; 6499 break; 6500 } 6501 6502 /* 6503 * If both pages have subpages, then the subpage numbers 6504 * have to match. 6505 */ 6506 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6507 && (page_header->page_code & SMPH_SPF)) { 6508 struct scsi_mode_page_header_sp *sph; 6509 6510 sph = (struct scsi_mode_page_header_sp *)page_header; 6511 6512 if (lun->mode_pages.index[i].subpage == 6513 sph->subpage) { 6514 page_index = &lun->mode_pages.index[i]; 6515 page_len = scsi_2btoul(sph->page_length); 6516 break; 6517 } 6518 } 6519 } 6520 6521 /* 6522 * If we couldn't find the page, or if we don't have a mode select 6523 * handler for it, send back an error to the user. 6524 */ 6525 if ((page_index == NULL) 6526 || (page_index->select_handler == NULL)) { 6527 ctl_set_invalid_field(ctsio, 6528 /*sks_valid*/ 1, 6529 /*command*/ 0, 6530 /*field*/ *len_used, 6531 /*bit_valid*/ 0, 6532 /*bit*/ 0); 6533 free(ctsio->kern_data_ptr, M_CTL); 6534 ctl_done((union ctl_io *)ctsio); 6535 return (CTL_RETVAL_COMPLETE); 6536 } 6537 6538 if (page_index->page_code & SMPH_SPF) { 6539 page_len_offset = 2; 6540 page_len_size = 2; 6541 } else { 6542 page_len_size = 1; 6543 page_len_offset = 1; 6544 } 6545 6546 /* 6547 * If the length the initiator gives us isn't the one we specify in 6548 * the mode page header, or if they didn't specify enough data in 6549 * the CDB to avoid truncating this page, kick out the request. 6550 */ 6551 if ((page_len != (page_index->page_len - page_len_offset - 6552 page_len_size)) 6553 || (*len_left < page_index->page_len)) { 6554 6555 6556 ctl_set_invalid_field(ctsio, 6557 /*sks_valid*/ 1, 6558 /*command*/ 0, 6559 /*field*/ *len_used + page_len_offset, 6560 /*bit_valid*/ 0, 6561 /*bit*/ 0); 6562 free(ctsio->kern_data_ptr, M_CTL); 6563 ctl_done((union ctl_io *)ctsio); 6564 return (CTL_RETVAL_COMPLETE); 6565 } 6566 6567 /* 6568 * Run through the mode page, checking to make sure that the bits 6569 * the user changed are actually legal for him to change. 6570 */ 6571 for (i = 0; i < page_index->page_len; i++) { 6572 uint8_t *user_byte, *change_mask, *current_byte; 6573 int bad_bit; 6574 int j; 6575 6576 user_byte = (uint8_t *)page_header + i; 6577 change_mask = page_index->page_data + 6578 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6579 current_byte = page_index->page_data + 6580 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6581 6582 /* 6583 * Check to see whether the user set any bits in this byte 6584 * that he is not allowed to set. 6585 */ 6586 if ((*user_byte & ~(*change_mask)) == 6587 (*current_byte & ~(*change_mask))) 6588 continue; 6589 6590 /* 6591 * Go through bit by bit to determine which one is illegal. 6592 */ 6593 bad_bit = 0; 6594 for (j = 7; j >= 0; j--) { 6595 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6596 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6597 bad_bit = i; 6598 break; 6599 } 6600 } 6601 ctl_set_invalid_field(ctsio, 6602 /*sks_valid*/ 1, 6603 /*command*/ 0, 6604 /*field*/ *len_used + i, 6605 /*bit_valid*/ 1, 6606 /*bit*/ bad_bit); 6607 free(ctsio->kern_data_ptr, M_CTL); 6608 ctl_done((union ctl_io *)ctsio); 6609 return (CTL_RETVAL_COMPLETE); 6610 } 6611 6612 /* 6613 * Decrement these before we call the page handler, since we may 6614 * end up getting called back one way or another before the handler 6615 * returns to this context. 6616 */ 6617 *len_left -= page_index->page_len; 6618 *len_used += page_index->page_len; 6619 6620 retval = page_index->select_handler(ctsio, page_index, 6621 (uint8_t *)page_header); 6622 6623 /* 6624 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6625 * wait until this queued command completes to finish processing 6626 * the mode page. If it returns anything other than 6627 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6628 * already set the sense information, freed the data pointer, and 6629 * completed the io for us. 6630 */ 6631 if (retval != CTL_RETVAL_COMPLETE) 6632 goto bailout_no_done; 6633 6634 /* 6635 * If the initiator sent us more than one page, parse the next one. 6636 */ 6637 if (*len_left > 0) 6638 goto do_next_page; 6639 6640 ctl_set_success(ctsio); 6641 free(ctsio->kern_data_ptr, M_CTL); 6642 ctl_done((union ctl_io *)ctsio); 6643 6644bailout_no_done: 6645 6646 return (CTL_RETVAL_COMPLETE); 6647 6648} 6649 6650int 6651ctl_mode_select(struct ctl_scsiio *ctsio) 6652{ 6653 int param_len, pf, sp; 6654 int header_size, bd_len; 6655 int len_left, len_used; 6656 struct ctl_page_index *page_index; 6657 struct ctl_lun *lun; 6658 int control_dev, page_len; 6659 union ctl_modepage_info *modepage_info; 6660 int retval; 6661 6662 pf = 0; 6663 sp = 0; 6664 page_len = 0; 6665 len_used = 0; 6666 len_left = 0; 6667 retval = 0; 6668 bd_len = 0; 6669 page_index = NULL; 6670 6671 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6672 6673 if (lun->be_lun->lun_type != T_DIRECT) 6674 control_dev = 1; 6675 else 6676 control_dev = 0; 6677 6678 switch (ctsio->cdb[0]) { 6679 case MODE_SELECT_6: { 6680 struct scsi_mode_select_6 *cdb; 6681 6682 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6683 6684 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6685 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6686 6687 param_len = cdb->length; 6688 header_size = sizeof(struct scsi_mode_header_6); 6689 break; 6690 } 6691 case MODE_SELECT_10: { 6692 struct scsi_mode_select_10 *cdb; 6693 6694 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6695 6696 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6697 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6698 6699 param_len = scsi_2btoul(cdb->length); 6700 header_size = sizeof(struct scsi_mode_header_10); 6701 break; 6702 } 6703 default: 6704 ctl_set_invalid_opcode(ctsio); 6705 ctl_done((union ctl_io *)ctsio); 6706 return (CTL_RETVAL_COMPLETE); 6707 break; /* NOTREACHED */ 6708 } 6709 6710 /* 6711 * From SPC-3: 6712 * "A parameter list length of zero indicates that the Data-Out Buffer 6713 * shall be empty. This condition shall not be considered as an error." 6714 */ 6715 if (param_len == 0) { 6716 ctl_set_success(ctsio); 6717 ctl_done((union ctl_io *)ctsio); 6718 return (CTL_RETVAL_COMPLETE); 6719 } 6720 6721 /* 6722 * Since we'll hit this the first time through, prior to 6723 * allocation, we don't need to free a data buffer here. 6724 */ 6725 if (param_len < header_size) { 6726 ctl_set_param_len_error(ctsio); 6727 ctl_done((union ctl_io *)ctsio); 6728 return (CTL_RETVAL_COMPLETE); 6729 } 6730 6731 /* 6732 * Allocate the data buffer and grab the user's data. In theory, 6733 * we shouldn't have to sanity check the parameter list length here 6734 * because the maximum size is 64K. We should be able to malloc 6735 * that much without too many problems. 6736 */ 6737 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6738 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6739 ctsio->kern_data_len = param_len; 6740 ctsio->kern_total_len = param_len; 6741 ctsio->kern_data_resid = 0; 6742 ctsio->kern_rel_offset = 0; 6743 ctsio->kern_sg_entries = 0; 6744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6745 ctsio->be_move_done = ctl_config_move_done; 6746 ctl_datamove((union ctl_io *)ctsio); 6747 6748 return (CTL_RETVAL_COMPLETE); 6749 } 6750 6751 switch (ctsio->cdb[0]) { 6752 case MODE_SELECT_6: { 6753 struct scsi_mode_header_6 *mh6; 6754 6755 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6756 bd_len = mh6->blk_desc_len; 6757 break; 6758 } 6759 case MODE_SELECT_10: { 6760 struct scsi_mode_header_10 *mh10; 6761 6762 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6763 bd_len = scsi_2btoul(mh10->blk_desc_len); 6764 break; 6765 } 6766 default: 6767 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6768 break; 6769 } 6770 6771 if (param_len < (header_size + bd_len)) { 6772 free(ctsio->kern_data_ptr, M_CTL); 6773 ctl_set_param_len_error(ctsio); 6774 ctl_done((union ctl_io *)ctsio); 6775 return (CTL_RETVAL_COMPLETE); 6776 } 6777 6778 /* 6779 * Set the IO_CONT flag, so that if this I/O gets passed to 6780 * ctl_config_write_done(), it'll get passed back to 6781 * ctl_do_mode_select() for further processing, or completion if 6782 * we're all done. 6783 */ 6784 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6785 ctsio->io_cont = ctl_do_mode_select; 6786 6787 modepage_info = (union ctl_modepage_info *) 6788 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6789 6790 memset(modepage_info, 0, sizeof(*modepage_info)); 6791 6792 len_left = param_len - header_size - bd_len; 6793 len_used = header_size + bd_len; 6794 6795 modepage_info->header.len_left = len_left; 6796 modepage_info->header.len_used = len_used; 6797 6798 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6799} 6800 6801int 6802ctl_mode_sense(struct ctl_scsiio *ctsio) 6803{ 6804 struct ctl_lun *lun; 6805 int pc, page_code, dbd, llba, subpage; 6806 int alloc_len, page_len, header_len, total_len; 6807 struct scsi_mode_block_descr *block_desc; 6808 struct ctl_page_index *page_index; 6809 int control_dev; 6810 6811 dbd = 0; 6812 llba = 0; 6813 block_desc = NULL; 6814 page_index = NULL; 6815 6816 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6817 6818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6819 6820 if (lun->be_lun->lun_type != T_DIRECT) 6821 control_dev = 1; 6822 else 6823 control_dev = 0; 6824 6825 if (lun->flags & CTL_LUN_PR_RESERVED) { 6826 uint32_t residx; 6827 6828 /* 6829 * XXX KDM need a lock here. 6830 */ 6831 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6832 if ((lun->res_type == SPR_TYPE_EX_AC 6833 && residx != lun->pr_res_idx) 6834 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6835 || lun->res_type == SPR_TYPE_EX_AC_AR) 6836 && !lun->per_res[residx].registered)) { 6837 ctl_set_reservation_conflict(ctsio); 6838 ctl_done((union ctl_io *)ctsio); 6839 return (CTL_RETVAL_COMPLETE); 6840 } 6841 } 6842 6843 switch (ctsio->cdb[0]) { 6844 case MODE_SENSE_6: { 6845 struct scsi_mode_sense_6 *cdb; 6846 6847 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6848 6849 header_len = sizeof(struct scsi_mode_hdr_6); 6850 if (cdb->byte2 & SMS_DBD) 6851 dbd = 1; 6852 else 6853 header_len += sizeof(struct scsi_mode_block_descr); 6854 6855 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6856 page_code = cdb->page & SMS_PAGE_CODE; 6857 subpage = cdb->subpage; 6858 alloc_len = cdb->length; 6859 break; 6860 } 6861 case MODE_SENSE_10: { 6862 struct scsi_mode_sense_10 *cdb; 6863 6864 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6865 6866 header_len = sizeof(struct scsi_mode_hdr_10); 6867 6868 if (cdb->byte2 & SMS_DBD) 6869 dbd = 1; 6870 else 6871 header_len += sizeof(struct scsi_mode_block_descr); 6872 if (cdb->byte2 & SMS10_LLBAA) 6873 llba = 1; 6874 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6875 page_code = cdb->page & SMS_PAGE_CODE; 6876 subpage = cdb->subpage; 6877 alloc_len = scsi_2btoul(cdb->length); 6878 break; 6879 } 6880 default: 6881 ctl_set_invalid_opcode(ctsio); 6882 ctl_done((union ctl_io *)ctsio); 6883 return (CTL_RETVAL_COMPLETE); 6884 break; /* NOTREACHED */ 6885 } 6886 6887 /* 6888 * We have to make a first pass through to calculate the size of 6889 * the pages that match the user's query. Then we allocate enough 6890 * memory to hold it, and actually copy the data into the buffer. 6891 */ 6892 switch (page_code) { 6893 case SMS_ALL_PAGES_PAGE: { 6894 int i; 6895 6896 page_len = 0; 6897 6898 /* 6899 * At the moment, values other than 0 and 0xff here are 6900 * reserved according to SPC-3. 6901 */ 6902 if ((subpage != SMS_SUBPAGE_PAGE_0) 6903 && (subpage != SMS_SUBPAGE_ALL)) { 6904 ctl_set_invalid_field(ctsio, 6905 /*sks_valid*/ 1, 6906 /*command*/ 1, 6907 /*field*/ 3, 6908 /*bit_valid*/ 0, 6909 /*bit*/ 0); 6910 ctl_done((union ctl_io *)ctsio); 6911 return (CTL_RETVAL_COMPLETE); 6912 } 6913 6914 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6915 if ((control_dev != 0) 6916 && (lun->mode_pages.index[i].page_flags & 6917 CTL_PAGE_FLAG_DISK_ONLY)) 6918 continue; 6919 6920 /* 6921 * We don't use this subpage if the user didn't 6922 * request all subpages. 6923 */ 6924 if ((lun->mode_pages.index[i].subpage != 0) 6925 && (subpage == SMS_SUBPAGE_PAGE_0)) 6926 continue; 6927 6928#if 0 6929 printf("found page %#x len %d\n", 6930 lun->mode_pages.index[i].page_code & 6931 SMPH_PC_MASK, 6932 lun->mode_pages.index[i].page_len); 6933#endif 6934 page_len += lun->mode_pages.index[i].page_len; 6935 } 6936 break; 6937 } 6938 default: { 6939 int i; 6940 6941 page_len = 0; 6942 6943 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6944 /* Look for the right page code */ 6945 if ((lun->mode_pages.index[i].page_code & 6946 SMPH_PC_MASK) != page_code) 6947 continue; 6948 6949 /* Look for the right subpage or the subpage wildcard*/ 6950 if ((lun->mode_pages.index[i].subpage != subpage) 6951 && (subpage != SMS_SUBPAGE_ALL)) 6952 continue; 6953 6954 /* Make sure the page is supported for this dev type */ 6955 if ((control_dev != 0) 6956 && (lun->mode_pages.index[i].page_flags & 6957 CTL_PAGE_FLAG_DISK_ONLY)) 6958 continue; 6959 6960#if 0 6961 printf("found page %#x len %d\n", 6962 lun->mode_pages.index[i].page_code & 6963 SMPH_PC_MASK, 6964 lun->mode_pages.index[i].page_len); 6965#endif 6966 6967 page_len += lun->mode_pages.index[i].page_len; 6968 } 6969 6970 if (page_len == 0) { 6971 ctl_set_invalid_field(ctsio, 6972 /*sks_valid*/ 1, 6973 /*command*/ 1, 6974 /*field*/ 2, 6975 /*bit_valid*/ 1, 6976 /*bit*/ 5); 6977 ctl_done((union ctl_io *)ctsio); 6978 return (CTL_RETVAL_COMPLETE); 6979 } 6980 break; 6981 } 6982 } 6983 6984 total_len = header_len + page_len; 6985#if 0 6986 printf("header_len = %d, page_len = %d, total_len = %d\n", 6987 header_len, page_len, total_len); 6988#endif 6989 6990 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6991 ctsio->kern_sg_entries = 0; 6992 ctsio->kern_data_resid = 0; 6993 ctsio->kern_rel_offset = 0; 6994 if (total_len < alloc_len) { 6995 ctsio->residual = alloc_len - total_len; 6996 ctsio->kern_data_len = total_len; 6997 ctsio->kern_total_len = total_len; 6998 } else { 6999 ctsio->residual = 0; 7000 ctsio->kern_data_len = alloc_len; 7001 ctsio->kern_total_len = alloc_len; 7002 } 7003 7004 switch (ctsio->cdb[0]) { 7005 case MODE_SENSE_6: { 7006 struct scsi_mode_hdr_6 *header; 7007 7008 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7009 7010 header->datalen = ctl_min(total_len - 1, 254); 7011 7012 if (dbd) 7013 header->block_descr_len = 0; 7014 else 7015 header->block_descr_len = 7016 sizeof(struct scsi_mode_block_descr); 7017 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7018 break; 7019 } 7020 case MODE_SENSE_10: { 7021 struct scsi_mode_hdr_10 *header; 7022 int datalen; 7023 7024 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7025 7026 datalen = ctl_min(total_len - 2, 65533); 7027 scsi_ulto2b(datalen, header->datalen); 7028 if (dbd) 7029 scsi_ulto2b(0, header->block_descr_len); 7030 else 7031 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7032 header->block_descr_len); 7033 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7034 break; 7035 } 7036 default: 7037 panic("invalid CDB type %#x", ctsio->cdb[0]); 7038 break; /* NOTREACHED */ 7039 } 7040 7041 /* 7042 * If we've got a disk, use its blocksize in the block 7043 * descriptor. Otherwise, just set it to 0. 7044 */ 7045 if (dbd == 0) { 7046 if (control_dev != 0) 7047 scsi_ulto3b(lun->be_lun->blocksize, 7048 block_desc->block_len); 7049 else 7050 scsi_ulto3b(0, block_desc->block_len); 7051 } 7052 7053 switch (page_code) { 7054 case SMS_ALL_PAGES_PAGE: { 7055 int i, data_used; 7056 7057 data_used = header_len; 7058 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7059 struct ctl_page_index *page_index; 7060 7061 page_index = &lun->mode_pages.index[i]; 7062 7063 if ((control_dev != 0) 7064 && (page_index->page_flags & 7065 CTL_PAGE_FLAG_DISK_ONLY)) 7066 continue; 7067 7068 /* 7069 * We don't use this subpage if the user didn't 7070 * request all subpages. We already checked (above) 7071 * to make sure the user only specified a subpage 7072 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7073 */ 7074 if ((page_index->subpage != 0) 7075 && (subpage == SMS_SUBPAGE_PAGE_0)) 7076 continue; 7077 7078 /* 7079 * Call the handler, if it exists, to update the 7080 * page to the latest values. 7081 */ 7082 if (page_index->sense_handler != NULL) 7083 page_index->sense_handler(ctsio, page_index,pc); 7084 7085 memcpy(ctsio->kern_data_ptr + data_used, 7086 page_index->page_data + 7087 (page_index->page_len * pc), 7088 page_index->page_len); 7089 data_used += page_index->page_len; 7090 } 7091 break; 7092 } 7093 default: { 7094 int i, data_used; 7095 7096 data_used = header_len; 7097 7098 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7099 struct ctl_page_index *page_index; 7100 7101 page_index = &lun->mode_pages.index[i]; 7102 7103 /* Look for the right page code */ 7104 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7105 continue; 7106 7107 /* Look for the right subpage or the subpage wildcard*/ 7108 if ((page_index->subpage != subpage) 7109 && (subpage != SMS_SUBPAGE_ALL)) 7110 continue; 7111 7112 /* Make sure the page is supported for this dev type */ 7113 if ((control_dev != 0) 7114 && (page_index->page_flags & 7115 CTL_PAGE_FLAG_DISK_ONLY)) 7116 continue; 7117 7118 /* 7119 * Call the handler, if it exists, to update the 7120 * page to the latest values. 7121 */ 7122 if (page_index->sense_handler != NULL) 7123 page_index->sense_handler(ctsio, page_index,pc); 7124 7125 memcpy(ctsio->kern_data_ptr + data_used, 7126 page_index->page_data + 7127 (page_index->page_len * pc), 7128 page_index->page_len); 7129 data_used += page_index->page_len; 7130 } 7131 break; 7132 } 7133 } 7134 7135 ctsio->scsi_status = SCSI_STATUS_OK; 7136 7137 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7138 ctsio->be_move_done = ctl_config_move_done; 7139 ctl_datamove((union ctl_io *)ctsio); 7140 7141 return (CTL_RETVAL_COMPLETE); 7142} 7143 7144int 7145ctl_read_capacity(struct ctl_scsiio *ctsio) 7146{ 7147 struct scsi_read_capacity *cdb; 7148 struct scsi_read_capacity_data *data; 7149 struct ctl_lun *lun; 7150 uint32_t lba; 7151 7152 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7153 7154 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7155 7156 lba = scsi_4btoul(cdb->addr); 7157 if (((cdb->pmi & SRC_PMI) == 0) 7158 && (lba != 0)) { 7159 ctl_set_invalid_field(/*ctsio*/ ctsio, 7160 /*sks_valid*/ 1, 7161 /*command*/ 1, 7162 /*field*/ 2, 7163 /*bit_valid*/ 0, 7164 /*bit*/ 0); 7165 ctl_done((union ctl_io *)ctsio); 7166 return (CTL_RETVAL_COMPLETE); 7167 } 7168 7169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7170 7171 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7172 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7173 ctsio->residual = 0; 7174 ctsio->kern_data_len = sizeof(*data); 7175 ctsio->kern_total_len = sizeof(*data); 7176 ctsio->kern_data_resid = 0; 7177 ctsio->kern_rel_offset = 0; 7178 ctsio->kern_sg_entries = 0; 7179 7180 /* 7181 * If the maximum LBA is greater than 0xfffffffe, the user must 7182 * issue a SERVICE ACTION IN (16) command, with the read capacity 7183 * serivce action set. 7184 */ 7185 if (lun->be_lun->maxlba > 0xfffffffe) 7186 scsi_ulto4b(0xffffffff, data->addr); 7187 else 7188 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7189 7190 /* 7191 * XXX KDM this may not be 512 bytes... 7192 */ 7193 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7194 7195 ctsio->scsi_status = SCSI_STATUS_OK; 7196 7197 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7198 ctsio->be_move_done = ctl_config_move_done; 7199 ctl_datamove((union ctl_io *)ctsio); 7200 7201 return (CTL_RETVAL_COMPLETE); 7202} 7203 7204int 7205ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7206{ 7207 struct scsi_read_capacity_16 *cdb; 7208 struct scsi_read_capacity_data_long *data; 7209 struct ctl_lun *lun; 7210 uint64_t lba; 7211 uint32_t alloc_len; 7212 7213 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7214 7215 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7216 7217 alloc_len = scsi_4btoul(cdb->alloc_len); 7218 lba = scsi_8btou64(cdb->addr); 7219 7220 if ((cdb->reladr & SRC16_PMI) 7221 && (lba != 0)) { 7222 ctl_set_invalid_field(/*ctsio*/ ctsio, 7223 /*sks_valid*/ 1, 7224 /*command*/ 1, 7225 /*field*/ 2, 7226 /*bit_valid*/ 0, 7227 /*bit*/ 0); 7228 ctl_done((union ctl_io *)ctsio); 7229 return (CTL_RETVAL_COMPLETE); 7230 } 7231 7232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7233 7234 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7235 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7236 7237 if (sizeof(*data) < alloc_len) { 7238 ctsio->residual = alloc_len - sizeof(*data); 7239 ctsio->kern_data_len = sizeof(*data); 7240 ctsio->kern_total_len = sizeof(*data); 7241 } else { 7242 ctsio->residual = 0; 7243 ctsio->kern_data_len = alloc_len; 7244 ctsio->kern_total_len = alloc_len; 7245 } 7246 ctsio->kern_data_resid = 0; 7247 ctsio->kern_rel_offset = 0; 7248 ctsio->kern_sg_entries = 0; 7249 7250 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7251 /* XXX KDM this may not be 512 bytes... */ 7252 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7253 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7254 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7255 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7256 data->lalba_lbp[0] |= SRC16_LBPME; 7257 7258 ctsio->scsi_status = SCSI_STATUS_OK; 7259 7260 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7261 ctsio->be_move_done = ctl_config_move_done; 7262 ctl_datamove((union ctl_io *)ctsio); 7263 7264 return (CTL_RETVAL_COMPLETE); 7265} 7266 7267int 7268ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7269{ 7270 struct scsi_maintenance_in *cdb; 7271 int retval; 7272 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7273 int num_target_port_groups, num_target_ports, single; 7274 struct ctl_lun *lun; 7275 struct ctl_softc *softc; 7276 struct ctl_port *port; 7277 struct scsi_target_group_data *rtg_ptr; 7278 struct scsi_target_group_data_extended *rtg_ext_ptr; 7279 struct scsi_target_port_group_descriptor *tpg_desc; 7280 7281 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7282 7283 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7284 softc = control_softc; 7285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7286 7287 retval = CTL_RETVAL_COMPLETE; 7288 7289 switch (cdb->byte2 & STG_PDF_MASK) { 7290 case STG_PDF_LENGTH: 7291 ext = 0; 7292 break; 7293 case STG_PDF_EXTENDED: 7294 ext = 1; 7295 break; 7296 default: 7297 ctl_set_invalid_field(/*ctsio*/ ctsio, 7298 /*sks_valid*/ 1, 7299 /*command*/ 1, 7300 /*field*/ 2, 7301 /*bit_valid*/ 1, 7302 /*bit*/ 5); 7303 ctl_done((union ctl_io *)ctsio); 7304 return(retval); 7305 } 7306 7307 single = ctl_is_single; 7308 if (single) 7309 num_target_port_groups = 1; 7310 else 7311 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7312 num_target_ports = 0; 7313 mtx_lock(&softc->ctl_lock); 7314 STAILQ_FOREACH(port, &softc->port_list, links) { 7315 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7316 continue; 7317 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7318 continue; 7319 num_target_ports++; 7320 } 7321 mtx_unlock(&softc->ctl_lock); 7322 7323 if (ext) 7324 total_len = sizeof(struct scsi_target_group_data_extended); 7325 else 7326 total_len = sizeof(struct scsi_target_group_data); 7327 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7328 num_target_port_groups + 7329 sizeof(struct scsi_target_port_descriptor) * 7330 num_target_ports * num_target_port_groups; 7331 7332 alloc_len = scsi_4btoul(cdb->length); 7333 7334 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7335 7336 ctsio->kern_sg_entries = 0; 7337 7338 if (total_len < alloc_len) { 7339 ctsio->residual = alloc_len - total_len; 7340 ctsio->kern_data_len = total_len; 7341 ctsio->kern_total_len = total_len; 7342 } else { 7343 ctsio->residual = 0; 7344 ctsio->kern_data_len = alloc_len; 7345 ctsio->kern_total_len = alloc_len; 7346 } 7347 ctsio->kern_data_resid = 0; 7348 ctsio->kern_rel_offset = 0; 7349 7350 if (ext) { 7351 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7352 ctsio->kern_data_ptr; 7353 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7354 rtg_ext_ptr->format_type = 0x10; 7355 rtg_ext_ptr->implicit_transition_time = 0; 7356 tpg_desc = &rtg_ext_ptr->groups[0]; 7357 } else { 7358 rtg_ptr = (struct scsi_target_group_data *) 7359 ctsio->kern_data_ptr; 7360 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7361 tpg_desc = &rtg_ptr->groups[0]; 7362 } 7363 7364 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7365 mtx_lock(&softc->ctl_lock); 7366 for (g = 0; g < num_target_port_groups; g++) { 7367 if (g == pg) 7368 tpg_desc->pref_state = TPG_PRIMARY | 7369 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7370 else 7371 tpg_desc->pref_state = 7372 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7373 tpg_desc->support = TPG_AO_SUP; 7374 if (!single) 7375 tpg_desc->support |= TPG_AN_SUP; 7376 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7377 tpg_desc->status = TPG_IMPLICIT; 7378 pc = 0; 7379 STAILQ_FOREACH(port, &softc->port_list, links) { 7380 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7381 continue; 7382 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7383 CTL_MAX_LUNS) 7384 continue; 7385 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7386 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7387 relative_target_port_identifier); 7388 pc++; 7389 } 7390 tpg_desc->target_port_count = pc; 7391 tpg_desc = (struct scsi_target_port_group_descriptor *) 7392 &tpg_desc->descriptors[pc]; 7393 } 7394 mtx_unlock(&softc->ctl_lock); 7395 7396 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7397 ctsio->be_move_done = ctl_config_move_done; 7398 7399 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7400 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7401 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7402 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7403 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7404 7405 ctl_datamove((union ctl_io *)ctsio); 7406 return(retval); 7407} 7408 7409int 7410ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7411{ 7412 struct ctl_lun *lun; 7413 struct scsi_report_supported_opcodes *cdb; 7414 const struct ctl_cmd_entry *entry, *sentry; 7415 struct scsi_report_supported_opcodes_all *all; 7416 struct scsi_report_supported_opcodes_descr *descr; 7417 struct scsi_report_supported_opcodes_one *one; 7418 int retval; 7419 int alloc_len, total_len; 7420 int opcode, service_action, i, j, num; 7421 7422 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7423 7424 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7425 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7426 7427 retval = CTL_RETVAL_COMPLETE; 7428 7429 opcode = cdb->requested_opcode; 7430 service_action = scsi_2btoul(cdb->requested_service_action); 7431 switch (cdb->options & RSO_OPTIONS_MASK) { 7432 case RSO_OPTIONS_ALL: 7433 num = 0; 7434 for (i = 0; i < 256; i++) { 7435 entry = &ctl_cmd_table[i]; 7436 if (entry->flags & CTL_CMD_FLAG_SA5) { 7437 for (j = 0; j < 32; j++) { 7438 sentry = &((const struct ctl_cmd_entry *) 7439 entry->execute)[j]; 7440 if (ctl_cmd_applicable( 7441 lun->be_lun->lun_type, sentry)) 7442 num++; 7443 } 7444 } else { 7445 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7446 entry)) 7447 num++; 7448 } 7449 } 7450 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7451 num * sizeof(struct scsi_report_supported_opcodes_descr); 7452 break; 7453 case RSO_OPTIONS_OC: 7454 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 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 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7465 break; 7466 case RSO_OPTIONS_OC_SA: 7467 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7468 service_action >= 32) { 7469 ctl_set_invalid_field(/*ctsio*/ ctsio, 7470 /*sks_valid*/ 1, 7471 /*command*/ 1, 7472 /*field*/ 2, 7473 /*bit_valid*/ 1, 7474 /*bit*/ 2); 7475 ctl_done((union ctl_io *)ctsio); 7476 return (CTL_RETVAL_COMPLETE); 7477 } 7478 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7479 break; 7480 default: 7481 ctl_set_invalid_field(/*ctsio*/ ctsio, 7482 /*sks_valid*/ 1, 7483 /*command*/ 1, 7484 /*field*/ 2, 7485 /*bit_valid*/ 1, 7486 /*bit*/ 2); 7487 ctl_done((union ctl_io *)ctsio); 7488 return (CTL_RETVAL_COMPLETE); 7489 } 7490 7491 alloc_len = scsi_4btoul(cdb->length); 7492 7493 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7494 7495 ctsio->kern_sg_entries = 0; 7496 7497 if (total_len < alloc_len) { 7498 ctsio->residual = alloc_len - total_len; 7499 ctsio->kern_data_len = total_len; 7500 ctsio->kern_total_len = total_len; 7501 } else { 7502 ctsio->residual = 0; 7503 ctsio->kern_data_len = alloc_len; 7504 ctsio->kern_total_len = alloc_len; 7505 } 7506 ctsio->kern_data_resid = 0; 7507 ctsio->kern_rel_offset = 0; 7508 7509 switch (cdb->options & RSO_OPTIONS_MASK) { 7510 case RSO_OPTIONS_ALL: 7511 all = (struct scsi_report_supported_opcodes_all *) 7512 ctsio->kern_data_ptr; 7513 num = 0; 7514 for (i = 0; i < 256; i++) { 7515 entry = &ctl_cmd_table[i]; 7516 if (entry->flags & CTL_CMD_FLAG_SA5) { 7517 for (j = 0; j < 32; j++) { 7518 sentry = &((const struct ctl_cmd_entry *) 7519 entry->execute)[j]; 7520 if (!ctl_cmd_applicable( 7521 lun->be_lun->lun_type, sentry)) 7522 continue; 7523 descr = &all->descr[num++]; 7524 descr->opcode = i; 7525 scsi_ulto2b(j, descr->service_action); 7526 descr->flags = RSO_SERVACTV; 7527 scsi_ulto2b(sentry->length, 7528 descr->cdb_length); 7529 } 7530 } else { 7531 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7532 entry)) 7533 continue; 7534 descr = &all->descr[num++]; 7535 descr->opcode = i; 7536 scsi_ulto2b(0, descr->service_action); 7537 descr->flags = 0; 7538 scsi_ulto2b(entry->length, descr->cdb_length); 7539 } 7540 } 7541 scsi_ulto4b( 7542 num * sizeof(struct scsi_report_supported_opcodes_descr), 7543 all->length); 7544 break; 7545 case RSO_OPTIONS_OC: 7546 one = (struct scsi_report_supported_opcodes_one *) 7547 ctsio->kern_data_ptr; 7548 entry = &ctl_cmd_table[opcode]; 7549 goto fill_one; 7550 case RSO_OPTIONS_OC_SA: 7551 one = (struct scsi_report_supported_opcodes_one *) 7552 ctsio->kern_data_ptr; 7553 entry = &ctl_cmd_table[opcode]; 7554 entry = &((const struct ctl_cmd_entry *) 7555 entry->execute)[service_action]; 7556fill_one: 7557 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7558 one->support = 3; 7559 scsi_ulto2b(entry->length, one->cdb_length); 7560 one->cdb_usage[0] = opcode; 7561 memcpy(&one->cdb_usage[1], entry->usage, 7562 entry->length - 1); 7563 } else 7564 one->support = 1; 7565 break; 7566 } 7567 7568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7569 ctsio->be_move_done = ctl_config_move_done; 7570 7571 ctl_datamove((union ctl_io *)ctsio); 7572 return(retval); 7573} 7574 7575int 7576ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7577{ 7578 struct ctl_lun *lun; 7579 struct scsi_report_supported_tmf *cdb; 7580 struct scsi_report_supported_tmf_data *data; 7581 int retval; 7582 int alloc_len, total_len; 7583 7584 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7585 7586 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7587 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7588 7589 retval = CTL_RETVAL_COMPLETE; 7590 7591 total_len = sizeof(struct scsi_report_supported_tmf_data); 7592 alloc_len = scsi_4btoul(cdb->length); 7593 7594 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7595 7596 ctsio->kern_sg_entries = 0; 7597 7598 if (total_len < alloc_len) { 7599 ctsio->residual = alloc_len - total_len; 7600 ctsio->kern_data_len = total_len; 7601 ctsio->kern_total_len = total_len; 7602 } else { 7603 ctsio->residual = 0; 7604 ctsio->kern_data_len = alloc_len; 7605 ctsio->kern_total_len = alloc_len; 7606 } 7607 ctsio->kern_data_resid = 0; 7608 ctsio->kern_rel_offset = 0; 7609 7610 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7611 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7612 data->byte2 |= RST_ITNRS; 7613 7614 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7615 ctsio->be_move_done = ctl_config_move_done; 7616 7617 ctl_datamove((union ctl_io *)ctsio); 7618 return (retval); 7619} 7620 7621int 7622ctl_report_timestamp(struct ctl_scsiio *ctsio) 7623{ 7624 struct ctl_lun *lun; 7625 struct scsi_report_timestamp *cdb; 7626 struct scsi_report_timestamp_data *data; 7627 struct timeval tv; 7628 int64_t timestamp; 7629 int retval; 7630 int alloc_len, total_len; 7631 7632 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7633 7634 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7635 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7636 7637 retval = CTL_RETVAL_COMPLETE; 7638 7639 total_len = sizeof(struct scsi_report_timestamp_data); 7640 alloc_len = scsi_4btoul(cdb->length); 7641 7642 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7643 7644 ctsio->kern_sg_entries = 0; 7645 7646 if (total_len < alloc_len) { 7647 ctsio->residual = alloc_len - total_len; 7648 ctsio->kern_data_len = total_len; 7649 ctsio->kern_total_len = total_len; 7650 } else { 7651 ctsio->residual = 0; 7652 ctsio->kern_data_len = alloc_len; 7653 ctsio->kern_total_len = alloc_len; 7654 } 7655 ctsio->kern_data_resid = 0; 7656 ctsio->kern_rel_offset = 0; 7657 7658 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7659 scsi_ulto2b(sizeof(*data) - 2, data->length); 7660 data->origin = RTS_ORIG_OUTSIDE; 7661 getmicrotime(&tv); 7662 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7663 scsi_ulto4b(timestamp >> 16, data->timestamp); 7664 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7665 7666 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7667 ctsio->be_move_done = ctl_config_move_done; 7668 7669 ctl_datamove((union ctl_io *)ctsio); 7670 return (retval); 7671} 7672 7673int 7674ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7675{ 7676 struct scsi_per_res_in *cdb; 7677 int alloc_len, total_len = 0; 7678 /* struct scsi_per_res_in_rsrv in_data; */ 7679 struct ctl_lun *lun; 7680 struct ctl_softc *softc; 7681 7682 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7683 7684 softc = control_softc; 7685 7686 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7687 7688 alloc_len = scsi_2btoul(cdb->length); 7689 7690 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7691 7692retry: 7693 mtx_lock(&lun->lun_lock); 7694 switch (cdb->action) { 7695 case SPRI_RK: /* read keys */ 7696 total_len = sizeof(struct scsi_per_res_in_keys) + 7697 lun->pr_key_count * 7698 sizeof(struct scsi_per_res_key); 7699 break; 7700 case SPRI_RR: /* read reservation */ 7701 if (lun->flags & CTL_LUN_PR_RESERVED) 7702 total_len = sizeof(struct scsi_per_res_in_rsrv); 7703 else 7704 total_len = sizeof(struct scsi_per_res_in_header); 7705 break; 7706 case SPRI_RC: /* report capabilities */ 7707 total_len = sizeof(struct scsi_per_res_cap); 7708 break; 7709 case SPRI_RS: /* read full status */ 7710 total_len = sizeof(struct scsi_per_res_in_header) + 7711 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7712 lun->pr_key_count; 7713 break; 7714 default: 7715 panic("Invalid PR type %x", cdb->action); 7716 } 7717 mtx_unlock(&lun->lun_lock); 7718 7719 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7720 7721 if (total_len < alloc_len) { 7722 ctsio->residual = alloc_len - total_len; 7723 ctsio->kern_data_len = total_len; 7724 ctsio->kern_total_len = total_len; 7725 } else { 7726 ctsio->residual = 0; 7727 ctsio->kern_data_len = alloc_len; 7728 ctsio->kern_total_len = alloc_len; 7729 } 7730 7731 ctsio->kern_data_resid = 0; 7732 ctsio->kern_rel_offset = 0; 7733 ctsio->kern_sg_entries = 0; 7734 7735 mtx_lock(&lun->lun_lock); 7736 switch (cdb->action) { 7737 case SPRI_RK: { // read keys 7738 struct scsi_per_res_in_keys *res_keys; 7739 int i, key_count; 7740 7741 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7742 7743 /* 7744 * We had to drop the lock to allocate our buffer, which 7745 * leaves time for someone to come in with another 7746 * persistent reservation. (That is unlikely, though, 7747 * since this should be the only persistent reservation 7748 * command active right now.) 7749 */ 7750 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7751 (lun->pr_key_count * 7752 sizeof(struct scsi_per_res_key)))){ 7753 mtx_unlock(&lun->lun_lock); 7754 free(ctsio->kern_data_ptr, M_CTL); 7755 printf("%s: reservation length changed, retrying\n", 7756 __func__); 7757 goto retry; 7758 } 7759 7760 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7761 7762 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7763 lun->pr_key_count, res_keys->header.length); 7764 7765 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7766 if (!lun->per_res[i].registered) 7767 continue; 7768 7769 /* 7770 * We used lun->pr_key_count to calculate the 7771 * size to allocate. If it turns out the number of 7772 * initiators with the registered flag set is 7773 * larger than that (i.e. they haven't been kept in 7774 * sync), we've got a problem. 7775 */ 7776 if (key_count >= lun->pr_key_count) { 7777#ifdef NEEDTOPORT 7778 csevent_log(CSC_CTL | CSC_SHELF_SW | 7779 CTL_PR_ERROR, 7780 csevent_LogType_Fault, 7781 csevent_AlertLevel_Yellow, 7782 csevent_FRU_ShelfController, 7783 csevent_FRU_Firmware, 7784 csevent_FRU_Unknown, 7785 "registered keys %d >= key " 7786 "count %d", key_count, 7787 lun->pr_key_count); 7788#endif 7789 key_count++; 7790 continue; 7791 } 7792 memcpy(res_keys->keys[key_count].key, 7793 lun->per_res[i].res_key.key, 7794 ctl_min(sizeof(res_keys->keys[key_count].key), 7795 sizeof(lun->per_res[i].res_key))); 7796 key_count++; 7797 } 7798 break; 7799 } 7800 case SPRI_RR: { // read reservation 7801 struct scsi_per_res_in_rsrv *res; 7802 int tmp_len, header_only; 7803 7804 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7805 7806 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7807 7808 if (lun->flags & CTL_LUN_PR_RESERVED) 7809 { 7810 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7811 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7812 res->header.length); 7813 header_only = 0; 7814 } else { 7815 tmp_len = sizeof(struct scsi_per_res_in_header); 7816 scsi_ulto4b(0, res->header.length); 7817 header_only = 1; 7818 } 7819 7820 /* 7821 * We had to drop the lock to allocate our buffer, which 7822 * leaves time for someone to come in with another 7823 * persistent reservation. (That is unlikely, though, 7824 * since this should be the only persistent reservation 7825 * command active right now.) 7826 */ 7827 if (tmp_len != total_len) { 7828 mtx_unlock(&lun->lun_lock); 7829 free(ctsio->kern_data_ptr, M_CTL); 7830 printf("%s: reservation status changed, retrying\n", 7831 __func__); 7832 goto retry; 7833 } 7834 7835 /* 7836 * No reservation held, so we're done. 7837 */ 7838 if (header_only != 0) 7839 break; 7840 7841 /* 7842 * If the registration is an All Registrants type, the key 7843 * is 0, since it doesn't really matter. 7844 */ 7845 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7846 memcpy(res->data.reservation, 7847 &lun->per_res[lun->pr_res_idx].res_key, 7848 sizeof(struct scsi_per_res_key)); 7849 } 7850 res->data.scopetype = lun->res_type; 7851 break; 7852 } 7853 case SPRI_RC: //report capabilities 7854 { 7855 struct scsi_per_res_cap *res_cap; 7856 uint16_t type_mask; 7857 7858 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7859 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7860 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7861 type_mask = SPRI_TM_WR_EX_AR | 7862 SPRI_TM_EX_AC_RO | 7863 SPRI_TM_WR_EX_RO | 7864 SPRI_TM_EX_AC | 7865 SPRI_TM_WR_EX | 7866 SPRI_TM_EX_AC_AR; 7867 scsi_ulto2b(type_mask, res_cap->type_mask); 7868 break; 7869 } 7870 case SPRI_RS: { // read full status 7871 struct scsi_per_res_in_full *res_status; 7872 struct scsi_per_res_in_full_desc *res_desc; 7873 struct ctl_port *port; 7874 int i, len; 7875 7876 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7877 7878 /* 7879 * We had to drop the lock to allocate our buffer, which 7880 * leaves time for someone to come in with another 7881 * persistent reservation. (That is unlikely, though, 7882 * since this should be the only persistent reservation 7883 * command active right now.) 7884 */ 7885 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7886 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7887 lun->pr_key_count)){ 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 printf("%s: reservation length changed, retrying\n", 7891 __func__); 7892 goto retry; 7893 } 7894 7895 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7896 7897 res_desc = &res_status->desc[0]; 7898 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7899 if (!lun->per_res[i].registered) 7900 continue; 7901 7902 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7903 sizeof(res_desc->res_key)); 7904 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7905 (lun->pr_res_idx == i || 7906 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7907 res_desc->flags = SPRI_FULL_R_HOLDER; 7908 res_desc->scopetype = lun->res_type; 7909 } 7910 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7911 res_desc->rel_trgt_port_id); 7912 len = 0; 7913 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7914 if (port != NULL) 7915 len = ctl_create_iid(port, 7916 i % CTL_MAX_INIT_PER_PORT, 7917 res_desc->transport_id); 7918 scsi_ulto4b(len, res_desc->additional_length); 7919 res_desc = (struct scsi_per_res_in_full_desc *) 7920 &res_desc->transport_id[len]; 7921 } 7922 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7923 res_status->header.length); 7924 break; 7925 } 7926 default: 7927 /* 7928 * This is a bug, because we just checked for this above, 7929 * and should have returned an error. 7930 */ 7931 panic("Invalid PR type %x", cdb->action); 7932 break; /* NOTREACHED */ 7933 } 7934 mtx_unlock(&lun->lun_lock); 7935 7936 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7937 ctsio->be_move_done = ctl_config_move_done; 7938 7939 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7940 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7941 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7942 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7943 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7944 7945 ctl_datamove((union ctl_io *)ctsio); 7946 7947 return (CTL_RETVAL_COMPLETE); 7948} 7949 7950/* 7951 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7952 * it should return. 7953 */ 7954static int 7955ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7956 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7957 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7958 struct scsi_per_res_out_parms* param) 7959{ 7960 union ctl_ha_msg persis_io; 7961 int retval, i; 7962 int isc_retval; 7963 7964 retval = 0; 7965 7966 mtx_lock(&lun->lun_lock); 7967 if (sa_res_key == 0) { 7968 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7969 /* validate scope and type */ 7970 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7971 SPR_LU_SCOPE) { 7972 mtx_unlock(&lun->lun_lock); 7973 ctl_set_invalid_field(/*ctsio*/ ctsio, 7974 /*sks_valid*/ 1, 7975 /*command*/ 1, 7976 /*field*/ 2, 7977 /*bit_valid*/ 1, 7978 /*bit*/ 4); 7979 ctl_done((union ctl_io *)ctsio); 7980 return (1); 7981 } 7982 7983 if (type>8 || type==2 || type==4 || type==0) { 7984 mtx_unlock(&lun->lun_lock); 7985 ctl_set_invalid_field(/*ctsio*/ ctsio, 7986 /*sks_valid*/ 1, 7987 /*command*/ 1, 7988 /*field*/ 2, 7989 /*bit_valid*/ 1, 7990 /*bit*/ 0); 7991 ctl_done((union ctl_io *)ctsio); 7992 return (1); 7993 } 7994 7995 /* temporarily unregister this nexus */ 7996 lun->per_res[residx].registered = 0; 7997 7998 /* 7999 * Unregister everybody else and build UA for 8000 * them 8001 */ 8002 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8003 if (lun->per_res[i].registered == 0) 8004 continue; 8005 8006 if (!persis_offset 8007 && i <CTL_MAX_INITIATORS) 8008 lun->pending_sense[i].ua_pending |= 8009 CTL_UA_REG_PREEMPT; 8010 else if (persis_offset 8011 && i >= persis_offset) 8012 lun->pending_sense[i-persis_offset 8013 ].ua_pending |= 8014 CTL_UA_REG_PREEMPT; 8015 lun->per_res[i].registered = 0; 8016 memset(&lun->per_res[i].res_key, 0, 8017 sizeof(struct scsi_per_res_key)); 8018 } 8019 lun->per_res[residx].registered = 1; 8020 lun->pr_key_count = 1; 8021 lun->res_type = type; 8022 if (lun->res_type != SPR_TYPE_WR_EX_AR 8023 && lun->res_type != SPR_TYPE_EX_AC_AR) 8024 lun->pr_res_idx = residx; 8025 8026 /* send msg to other side */ 8027 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8028 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8029 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8030 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8031 persis_io.pr.pr_info.res_type = type; 8032 memcpy(persis_io.pr.pr_info.sa_res_key, 8033 param->serv_act_res_key, 8034 sizeof(param->serv_act_res_key)); 8035 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8036 &persis_io, sizeof(persis_io), 0)) > 8037 CTL_HA_STATUS_SUCCESS) { 8038 printf("CTL:Persis Out error returned " 8039 "from ctl_ha_msg_send %d\n", 8040 isc_retval); 8041 } 8042 } else { 8043 /* not all registrants */ 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 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8056 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8057 int found = 0; 8058 8059 if (res_key == sa_res_key) { 8060 /* special case */ 8061 /* 8062 * The spec implies this is not good but doesn't 8063 * say what to do. There are two choices either 8064 * generate a res conflict or check condition 8065 * with illegal field in parameter data. Since 8066 * that is what is done when the sa_res_key is 8067 * zero I'll take that approach since this has 8068 * to do with the sa_res_key. 8069 */ 8070 mtx_unlock(&lun->lun_lock); 8071 free(ctsio->kern_data_ptr, M_CTL); 8072 ctl_set_invalid_field(ctsio, 8073 /*sks_valid*/ 1, 8074 /*command*/ 0, 8075 /*field*/ 8, 8076 /*bit_valid*/ 0, 8077 /*bit*/ 0); 8078 ctl_done((union ctl_io *)ctsio); 8079 return (1); 8080 } 8081 8082 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8083 if (lun->per_res[i].registered 8084 && memcmp(param->serv_act_res_key, 8085 lun->per_res[i].res_key.key, 8086 sizeof(struct scsi_per_res_key)) != 0) 8087 continue; 8088 8089 found = 1; 8090 lun->per_res[i].registered = 0; 8091 memset(&lun->per_res[i].res_key, 0, 8092 sizeof(struct scsi_per_res_key)); 8093 lun->pr_key_count--; 8094 8095 if (!persis_offset 8096 && i < CTL_MAX_INITIATORS) 8097 lun->pending_sense[i].ua_pending |= 8098 CTL_UA_REG_PREEMPT; 8099 else if (persis_offset 8100 && i >= persis_offset) 8101 lun->pending_sense[i-persis_offset].ua_pending|= 8102 CTL_UA_REG_PREEMPT; 8103 } 8104 if (!found) { 8105 mtx_unlock(&lun->lun_lock); 8106 free(ctsio->kern_data_ptr, M_CTL); 8107 ctl_set_reservation_conflict(ctsio); 8108 ctl_done((union ctl_io *)ctsio); 8109 return (CTL_RETVAL_COMPLETE); 8110 } 8111 /* send msg to other side */ 8112 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8113 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8114 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8115 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8116 persis_io.pr.pr_info.res_type = type; 8117 memcpy(persis_io.pr.pr_info.sa_res_key, 8118 param->serv_act_res_key, 8119 sizeof(param->serv_act_res_key)); 8120 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8121 &persis_io, sizeof(persis_io), 0)) > 8122 CTL_HA_STATUS_SUCCESS) { 8123 printf("CTL:Persis Out error returned from " 8124 "ctl_ha_msg_send %d\n", isc_retval); 8125 } 8126 } else { 8127 /* Reserved but not all registrants */ 8128 /* sa_res_key is res holder */ 8129 if (memcmp(param->serv_act_res_key, 8130 lun->per_res[lun->pr_res_idx].res_key.key, 8131 sizeof(struct scsi_per_res_key)) == 0) { 8132 /* validate scope and type */ 8133 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8134 SPR_LU_SCOPE) { 8135 mtx_unlock(&lun->lun_lock); 8136 ctl_set_invalid_field(/*ctsio*/ ctsio, 8137 /*sks_valid*/ 1, 8138 /*command*/ 1, 8139 /*field*/ 2, 8140 /*bit_valid*/ 1, 8141 /*bit*/ 4); 8142 ctl_done((union ctl_io *)ctsio); 8143 return (1); 8144 } 8145 8146 if (type>8 || type==2 || type==4 || type==0) { 8147 mtx_unlock(&lun->lun_lock); 8148 ctl_set_invalid_field(/*ctsio*/ ctsio, 8149 /*sks_valid*/ 1, 8150 /*command*/ 1, 8151 /*field*/ 2, 8152 /*bit_valid*/ 1, 8153 /*bit*/ 0); 8154 ctl_done((union ctl_io *)ctsio); 8155 return (1); 8156 } 8157 8158 /* 8159 * Do the following: 8160 * if sa_res_key != res_key remove all 8161 * registrants w/sa_res_key and generate UA 8162 * for these registrants(Registrations 8163 * Preempted) if it wasn't an exclusive 8164 * reservation generate UA(Reservations 8165 * Preempted) for all other registered nexuses 8166 * if the type has changed. Establish the new 8167 * reservation and holder. If res_key and 8168 * sa_res_key are the same do the above 8169 * except don't unregister the res holder. 8170 */ 8171 8172 /* 8173 * Temporarily unregister so it won't get 8174 * removed or UA generated 8175 */ 8176 lun->per_res[residx].registered = 0; 8177 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8178 if (lun->per_res[i].registered == 0) 8179 continue; 8180 8181 if (memcmp(param->serv_act_res_key, 8182 lun->per_res[i].res_key.key, 8183 sizeof(struct scsi_per_res_key)) == 0) { 8184 lun->per_res[i].registered = 0; 8185 memset(&lun->per_res[i].res_key, 8186 0, 8187 sizeof(struct scsi_per_res_key)); 8188 lun->pr_key_count--; 8189 8190 if (!persis_offset 8191 && i < CTL_MAX_INITIATORS) 8192 lun->pending_sense[i 8193 ].ua_pending |= 8194 CTL_UA_REG_PREEMPT; 8195 else if (persis_offset 8196 && i >= persis_offset) 8197 lun->pending_sense[ 8198 i-persis_offset].ua_pending |= 8199 CTL_UA_REG_PREEMPT; 8200 } else if (type != lun->res_type 8201 && (lun->res_type == SPR_TYPE_WR_EX_RO 8202 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8203 if (!persis_offset 8204 && i < CTL_MAX_INITIATORS) 8205 lun->pending_sense[i 8206 ].ua_pending |= 8207 CTL_UA_RES_RELEASE; 8208 else if (persis_offset 8209 && i >= persis_offset) 8210 lun->pending_sense[ 8211 i-persis_offset 8212 ].ua_pending |= 8213 CTL_UA_RES_RELEASE; 8214 } 8215 } 8216 lun->per_res[residx].registered = 1; 8217 lun->res_type = type; 8218 if (lun->res_type != SPR_TYPE_WR_EX_AR 8219 && lun->res_type != SPR_TYPE_EX_AC_AR) 8220 lun->pr_res_idx = residx; 8221 else 8222 lun->pr_res_idx = 8223 CTL_PR_ALL_REGISTRANTS; 8224 8225 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8226 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8227 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8228 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8229 persis_io.pr.pr_info.res_type = type; 8230 memcpy(persis_io.pr.pr_info.sa_res_key, 8231 param->serv_act_res_key, 8232 sizeof(param->serv_act_res_key)); 8233 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8234 &persis_io, sizeof(persis_io), 0)) > 8235 CTL_HA_STATUS_SUCCESS) { 8236 printf("CTL:Persis Out error returned " 8237 "from ctl_ha_msg_send %d\n", 8238 isc_retval); 8239 } 8240 } else { 8241 /* 8242 * sa_res_key is not the res holder just 8243 * remove registrants 8244 */ 8245 int found=0; 8246 8247 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8248 if (memcmp(param->serv_act_res_key, 8249 lun->per_res[i].res_key.key, 8250 sizeof(struct scsi_per_res_key)) != 0) 8251 continue; 8252 8253 found = 1; 8254 lun->per_res[i].registered = 0; 8255 memset(&lun->per_res[i].res_key, 0, 8256 sizeof(struct scsi_per_res_key)); 8257 lun->pr_key_count--; 8258 8259 if (!persis_offset 8260 && i < CTL_MAX_INITIATORS) 8261 lun->pending_sense[i].ua_pending |= 8262 CTL_UA_REG_PREEMPT; 8263 else if (persis_offset 8264 && i >= persis_offset) 8265 lun->pending_sense[ 8266 i-persis_offset].ua_pending |= 8267 CTL_UA_REG_PREEMPT; 8268 } 8269 8270 if (!found) { 8271 mtx_unlock(&lun->lun_lock); 8272 free(ctsio->kern_data_ptr, M_CTL); 8273 ctl_set_reservation_conflict(ctsio); 8274 ctl_done((union ctl_io *)ctsio); 8275 return (1); 8276 } 8277 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8278 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8279 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8280 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8281 persis_io.pr.pr_info.res_type = type; 8282 memcpy(persis_io.pr.pr_info.sa_res_key, 8283 param->serv_act_res_key, 8284 sizeof(param->serv_act_res_key)); 8285 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8286 &persis_io, sizeof(persis_io), 0)) > 8287 CTL_HA_STATUS_SUCCESS) { 8288 printf("CTL:Persis Out error returned " 8289 "from ctl_ha_msg_send %d\n", 8290 isc_retval); 8291 } 8292 } 8293 } 8294 8295 lun->PRGeneration++; 8296 mtx_unlock(&lun->lun_lock); 8297 8298 return (retval); 8299} 8300 8301static void 8302ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8303{ 8304 int i; 8305 8306 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8307 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8308 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8309 msg->pr.pr_info.sa_res_key, 8310 sizeof(struct scsi_per_res_key)) != 0) { 8311 uint64_t sa_res_key; 8312 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8313 8314 if (sa_res_key == 0) { 8315 /* temporarily unregister this nexus */ 8316 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8317 8318 /* 8319 * Unregister everybody else and build UA for 8320 * them 8321 */ 8322 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8323 if (lun->per_res[i].registered == 0) 8324 continue; 8325 8326 if (!persis_offset 8327 && i < CTL_MAX_INITIATORS) 8328 lun->pending_sense[i].ua_pending |= 8329 CTL_UA_REG_PREEMPT; 8330 else if (persis_offset && i >= persis_offset) 8331 lun->pending_sense[i - 8332 persis_offset].ua_pending |= 8333 CTL_UA_REG_PREEMPT; 8334 lun->per_res[i].registered = 0; 8335 memset(&lun->per_res[i].res_key, 0, 8336 sizeof(struct scsi_per_res_key)); 8337 } 8338 8339 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8340 lun->pr_key_count = 1; 8341 lun->res_type = msg->pr.pr_info.res_type; 8342 if (lun->res_type != SPR_TYPE_WR_EX_AR 8343 && lun->res_type != SPR_TYPE_EX_AC_AR) 8344 lun->pr_res_idx = msg->pr.pr_info.residx; 8345 } else { 8346 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8347 if (memcmp(msg->pr.pr_info.sa_res_key, 8348 lun->per_res[i].res_key.key, 8349 sizeof(struct scsi_per_res_key)) != 0) 8350 continue; 8351 8352 lun->per_res[i].registered = 0; 8353 memset(&lun->per_res[i].res_key, 0, 8354 sizeof(struct scsi_per_res_key)); 8355 lun->pr_key_count--; 8356 8357 if (!persis_offset 8358 && i < persis_offset) 8359 lun->pending_sense[i].ua_pending |= 8360 CTL_UA_REG_PREEMPT; 8361 else if (persis_offset 8362 && i >= persis_offset) 8363 lun->pending_sense[i - 8364 persis_offset].ua_pending |= 8365 CTL_UA_REG_PREEMPT; 8366 } 8367 } 8368 } else { 8369 /* 8370 * Temporarily unregister so it won't get removed 8371 * or UA generated 8372 */ 8373 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8374 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8375 if (lun->per_res[i].registered == 0) 8376 continue; 8377 8378 if (memcmp(msg->pr.pr_info.sa_res_key, 8379 lun->per_res[i].res_key.key, 8380 sizeof(struct scsi_per_res_key)) == 0) { 8381 lun->per_res[i].registered = 0; 8382 memset(&lun->per_res[i].res_key, 0, 8383 sizeof(struct scsi_per_res_key)); 8384 lun->pr_key_count--; 8385 if (!persis_offset 8386 && i < CTL_MAX_INITIATORS) 8387 lun->pending_sense[i].ua_pending |= 8388 CTL_UA_REG_PREEMPT; 8389 else if (persis_offset 8390 && i >= persis_offset) 8391 lun->pending_sense[i - 8392 persis_offset].ua_pending |= 8393 CTL_UA_REG_PREEMPT; 8394 } else if (msg->pr.pr_info.res_type != lun->res_type 8395 && (lun->res_type == SPR_TYPE_WR_EX_RO 8396 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8397 if (!persis_offset 8398 && i < persis_offset) 8399 lun->pending_sense[i 8400 ].ua_pending |= 8401 CTL_UA_RES_RELEASE; 8402 else if (persis_offset 8403 && i >= persis_offset) 8404 lun->pending_sense[i - 8405 persis_offset].ua_pending |= 8406 CTL_UA_RES_RELEASE; 8407 } 8408 } 8409 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8410 lun->res_type = msg->pr.pr_info.res_type; 8411 if (lun->res_type != SPR_TYPE_WR_EX_AR 8412 && lun->res_type != SPR_TYPE_EX_AC_AR) 8413 lun->pr_res_idx = msg->pr.pr_info.residx; 8414 else 8415 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8416 } 8417 lun->PRGeneration++; 8418 8419} 8420 8421 8422int 8423ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8424{ 8425 int retval; 8426 int isc_retval; 8427 u_int32_t param_len; 8428 struct scsi_per_res_out *cdb; 8429 struct ctl_lun *lun; 8430 struct scsi_per_res_out_parms* param; 8431 struct ctl_softc *softc; 8432 uint32_t residx; 8433 uint64_t res_key, sa_res_key; 8434 uint8_t type; 8435 union ctl_ha_msg persis_io; 8436 int i; 8437 8438 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8439 8440 retval = CTL_RETVAL_COMPLETE; 8441 8442 softc = control_softc; 8443 8444 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8445 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8446 8447 /* 8448 * We only support whole-LUN scope. The scope & type are ignored for 8449 * register, register and ignore existing key and clear. 8450 * We sometimes ignore scope and type on preempts too!! 8451 * Verify reservation type here as well. 8452 */ 8453 type = cdb->scope_type & SPR_TYPE_MASK; 8454 if ((cdb->action == SPRO_RESERVE) 8455 || (cdb->action == SPRO_RELEASE)) { 8456 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8457 ctl_set_invalid_field(/*ctsio*/ ctsio, 8458 /*sks_valid*/ 1, 8459 /*command*/ 1, 8460 /*field*/ 2, 8461 /*bit_valid*/ 1, 8462 /*bit*/ 4); 8463 ctl_done((union ctl_io *)ctsio); 8464 return (CTL_RETVAL_COMPLETE); 8465 } 8466 8467 if (type>8 || type==2 || type==4 || type==0) { 8468 ctl_set_invalid_field(/*ctsio*/ ctsio, 8469 /*sks_valid*/ 1, 8470 /*command*/ 1, 8471 /*field*/ 2, 8472 /*bit_valid*/ 1, 8473 /*bit*/ 0); 8474 ctl_done((union ctl_io *)ctsio); 8475 return (CTL_RETVAL_COMPLETE); 8476 } 8477 } 8478 8479 param_len = scsi_4btoul(cdb->length); 8480 8481 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8482 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8483 ctsio->kern_data_len = param_len; 8484 ctsio->kern_total_len = param_len; 8485 ctsio->kern_data_resid = 0; 8486 ctsio->kern_rel_offset = 0; 8487 ctsio->kern_sg_entries = 0; 8488 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8489 ctsio->be_move_done = ctl_config_move_done; 8490 ctl_datamove((union ctl_io *)ctsio); 8491 8492 return (CTL_RETVAL_COMPLETE); 8493 } 8494 8495 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8496 8497 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8498 res_key = scsi_8btou64(param->res_key.key); 8499 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8500 8501 /* 8502 * Validate the reservation key here except for SPRO_REG_IGNO 8503 * This must be done for all other service actions 8504 */ 8505 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8506 mtx_lock(&lun->lun_lock); 8507 if (lun->per_res[residx].registered) { 8508 if (memcmp(param->res_key.key, 8509 lun->per_res[residx].res_key.key, 8510 ctl_min(sizeof(param->res_key), 8511 sizeof(lun->per_res[residx].res_key))) != 0) { 8512 /* 8513 * The current key passed in doesn't match 8514 * the one the initiator previously 8515 * registered. 8516 */ 8517 mtx_unlock(&lun->lun_lock); 8518 free(ctsio->kern_data_ptr, M_CTL); 8519 ctl_set_reservation_conflict(ctsio); 8520 ctl_done((union ctl_io *)ctsio); 8521 return (CTL_RETVAL_COMPLETE); 8522 } 8523 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8524 /* 8525 * We are not registered 8526 */ 8527 mtx_unlock(&lun->lun_lock); 8528 free(ctsio->kern_data_ptr, M_CTL); 8529 ctl_set_reservation_conflict(ctsio); 8530 ctl_done((union ctl_io *)ctsio); 8531 return (CTL_RETVAL_COMPLETE); 8532 } else if (res_key != 0) { 8533 /* 8534 * We are not registered and trying to register but 8535 * the register key isn't zero. 8536 */ 8537 mtx_unlock(&lun->lun_lock); 8538 free(ctsio->kern_data_ptr, M_CTL); 8539 ctl_set_reservation_conflict(ctsio); 8540 ctl_done((union ctl_io *)ctsio); 8541 return (CTL_RETVAL_COMPLETE); 8542 } 8543 mtx_unlock(&lun->lun_lock); 8544 } 8545 8546 switch (cdb->action & SPRO_ACTION_MASK) { 8547 case SPRO_REGISTER: 8548 case SPRO_REG_IGNO: { 8549 8550#if 0 8551 printf("Registration received\n"); 8552#endif 8553 8554 /* 8555 * We don't support any of these options, as we report in 8556 * the read capabilities request (see 8557 * ctl_persistent_reserve_in(), above). 8558 */ 8559 if ((param->flags & SPR_SPEC_I_PT) 8560 || (param->flags & SPR_ALL_TG_PT) 8561 || (param->flags & SPR_APTPL)) { 8562 int bit_ptr; 8563 8564 if (param->flags & SPR_APTPL) 8565 bit_ptr = 0; 8566 else if (param->flags & SPR_ALL_TG_PT) 8567 bit_ptr = 2; 8568 else /* SPR_SPEC_I_PT */ 8569 bit_ptr = 3; 8570 8571 free(ctsio->kern_data_ptr, M_CTL); 8572 ctl_set_invalid_field(ctsio, 8573 /*sks_valid*/ 1, 8574 /*command*/ 0, 8575 /*field*/ 20, 8576 /*bit_valid*/ 1, 8577 /*bit*/ bit_ptr); 8578 ctl_done((union ctl_io *)ctsio); 8579 return (CTL_RETVAL_COMPLETE); 8580 } 8581 8582 mtx_lock(&lun->lun_lock); 8583 8584 /* 8585 * The initiator wants to clear the 8586 * key/unregister. 8587 */ 8588 if (sa_res_key == 0) { 8589 if ((res_key == 0 8590 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8591 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8592 && !lun->per_res[residx].registered)) { 8593 mtx_unlock(&lun->lun_lock); 8594 goto done; 8595 } 8596 8597 lun->per_res[residx].registered = 0; 8598 memset(&lun->per_res[residx].res_key, 8599 0, sizeof(lun->per_res[residx].res_key)); 8600 lun->pr_key_count--; 8601 8602 if (residx == lun->pr_res_idx) { 8603 lun->flags &= ~CTL_LUN_PR_RESERVED; 8604 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8605 8606 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8607 || lun->res_type == SPR_TYPE_EX_AC_RO) 8608 && lun->pr_key_count) { 8609 /* 8610 * If the reservation is a registrants 8611 * only type we need to generate a UA 8612 * for other registered inits. The 8613 * sense code should be RESERVATIONS 8614 * RELEASED 8615 */ 8616 8617 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8618 if (lun->per_res[ 8619 i+persis_offset].registered 8620 == 0) 8621 continue; 8622 lun->pending_sense[i 8623 ].ua_pending |= 8624 CTL_UA_RES_RELEASE; 8625 } 8626 } 8627 lun->res_type = 0; 8628 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8629 if (lun->pr_key_count==0) { 8630 lun->flags &= ~CTL_LUN_PR_RESERVED; 8631 lun->res_type = 0; 8632 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8633 } 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_UNREG_KEY; 8638 persis_io.pr.pr_info.residx = residx; 8639 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8640 &persis_io, sizeof(persis_io), 0 )) > 8641 CTL_HA_STATUS_SUCCESS) { 8642 printf("CTL:Persis Out error returned from " 8643 "ctl_ha_msg_send %d\n", isc_retval); 8644 } 8645 } else /* sa_res_key != 0 */ { 8646 8647 /* 8648 * If we aren't registered currently then increment 8649 * the key count and set the registered flag. 8650 */ 8651 if (!lun->per_res[residx].registered) { 8652 lun->pr_key_count++; 8653 lun->per_res[residx].registered = 1; 8654 } 8655 8656 memcpy(&lun->per_res[residx].res_key, 8657 param->serv_act_res_key, 8658 ctl_min(sizeof(param->serv_act_res_key), 8659 sizeof(lun->per_res[residx].res_key))); 8660 8661 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8662 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8663 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8664 persis_io.pr.pr_info.residx = residx; 8665 memcpy(persis_io.pr.pr_info.sa_res_key, 8666 param->serv_act_res_key, 8667 sizeof(param->serv_act_res_key)); 8668 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8669 &persis_io, sizeof(persis_io), 0)) > 8670 CTL_HA_STATUS_SUCCESS) { 8671 printf("CTL:Persis Out error returned from " 8672 "ctl_ha_msg_send %d\n", isc_retval); 8673 } 8674 } 8675 lun->PRGeneration++; 8676 mtx_unlock(&lun->lun_lock); 8677 8678 break; 8679 } 8680 case SPRO_RESERVE: 8681#if 0 8682 printf("Reserve executed type %d\n", type); 8683#endif 8684 mtx_lock(&lun->lun_lock); 8685 if (lun->flags & CTL_LUN_PR_RESERVED) { 8686 /* 8687 * if this isn't the reservation holder and it's 8688 * not a "all registrants" type or if the type is 8689 * different then we have a conflict 8690 */ 8691 if ((lun->pr_res_idx != residx 8692 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8693 || lun->res_type != type) { 8694 mtx_unlock(&lun->lun_lock); 8695 free(ctsio->kern_data_ptr, M_CTL); 8696 ctl_set_reservation_conflict(ctsio); 8697 ctl_done((union ctl_io *)ctsio); 8698 return (CTL_RETVAL_COMPLETE); 8699 } 8700 mtx_unlock(&lun->lun_lock); 8701 } else /* create a reservation */ { 8702 /* 8703 * If it's not an "all registrants" type record 8704 * reservation holder 8705 */ 8706 if (type != SPR_TYPE_WR_EX_AR 8707 && type != SPR_TYPE_EX_AC_AR) 8708 lun->pr_res_idx = residx; /* Res holder */ 8709 else 8710 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8711 8712 lun->flags |= CTL_LUN_PR_RESERVED; 8713 lun->res_type = type; 8714 8715 mtx_unlock(&lun->lun_lock); 8716 8717 /* send msg to other side */ 8718 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8719 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8720 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8721 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8722 persis_io.pr.pr_info.res_type = type; 8723 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8724 &persis_io, sizeof(persis_io), 0)) > 8725 CTL_HA_STATUS_SUCCESS) { 8726 printf("CTL:Persis Out error returned from " 8727 "ctl_ha_msg_send %d\n", isc_retval); 8728 } 8729 } 8730 break; 8731 8732 case SPRO_RELEASE: 8733 mtx_lock(&lun->lun_lock); 8734 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8735 /* No reservation exists return good status */ 8736 mtx_unlock(&lun->lun_lock); 8737 goto done; 8738 } 8739 /* 8740 * Is this nexus a reservation holder? 8741 */ 8742 if (lun->pr_res_idx != residx 8743 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8744 /* 8745 * not a res holder return good status but 8746 * do nothing 8747 */ 8748 mtx_unlock(&lun->lun_lock); 8749 goto done; 8750 } 8751 8752 if (lun->res_type != type) { 8753 mtx_unlock(&lun->lun_lock); 8754 free(ctsio->kern_data_ptr, M_CTL); 8755 ctl_set_illegal_pr_release(ctsio); 8756 ctl_done((union ctl_io *)ctsio); 8757 return (CTL_RETVAL_COMPLETE); 8758 } 8759 8760 /* okay to release */ 8761 lun->flags &= ~CTL_LUN_PR_RESERVED; 8762 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8763 lun->res_type = 0; 8764 8765 /* 8766 * if this isn't an exclusive access 8767 * res generate UA for all other 8768 * registrants. 8769 */ 8770 if (type != SPR_TYPE_EX_AC 8771 && type != SPR_TYPE_WR_EX) { 8772 /* 8773 * temporarily unregister so we don't generate UA 8774 */ 8775 lun->per_res[residx].registered = 0; 8776 8777 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8778 if (lun->per_res[i+persis_offset].registered 8779 == 0) 8780 continue; 8781 lun->pending_sense[i].ua_pending |= 8782 CTL_UA_RES_RELEASE; 8783 } 8784 8785 lun->per_res[residx].registered = 1; 8786 } 8787 mtx_unlock(&lun->lun_lock); 8788 /* Send msg to other side */ 8789 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8790 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8791 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8792 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8793 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8794 printf("CTL:Persis Out error returned from " 8795 "ctl_ha_msg_send %d\n", isc_retval); 8796 } 8797 break; 8798 8799 case SPRO_CLEAR: 8800 /* send msg to other side */ 8801 8802 mtx_lock(&lun->lun_lock); 8803 lun->flags &= ~CTL_LUN_PR_RESERVED; 8804 lun->res_type = 0; 8805 lun->pr_key_count = 0; 8806 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8807 8808 8809 memset(&lun->per_res[residx].res_key, 8810 0, sizeof(lun->per_res[residx].res_key)); 8811 lun->per_res[residx].registered = 0; 8812 8813 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8814 if (lun->per_res[i].registered) { 8815 if (!persis_offset && i < CTL_MAX_INITIATORS) 8816 lun->pending_sense[i].ua_pending |= 8817 CTL_UA_RES_PREEMPT; 8818 else if (persis_offset && i >= persis_offset) 8819 lun->pending_sense[i-persis_offset 8820 ].ua_pending |= CTL_UA_RES_PREEMPT; 8821 8822 memset(&lun->per_res[i].res_key, 8823 0, sizeof(struct scsi_per_res_key)); 8824 lun->per_res[i].registered = 0; 8825 } 8826 lun->PRGeneration++; 8827 mtx_unlock(&lun->lun_lock); 8828 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8829 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8830 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8831 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8832 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8833 printf("CTL:Persis Out error returned from " 8834 "ctl_ha_msg_send %d\n", isc_retval); 8835 } 8836 break; 8837 8838 case SPRO_PREEMPT: { 8839 int nretval; 8840 8841 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8842 residx, ctsio, cdb, param); 8843 if (nretval != 0) 8844 return (CTL_RETVAL_COMPLETE); 8845 break; 8846 } 8847 default: 8848 panic("Invalid PR type %x", cdb->action); 8849 } 8850 8851done: 8852 free(ctsio->kern_data_ptr, M_CTL); 8853 ctl_set_success(ctsio); 8854 ctl_done((union ctl_io *)ctsio); 8855 8856 return (retval); 8857} 8858 8859/* 8860 * This routine is for handling a message from the other SC pertaining to 8861 * persistent reserve out. All the error checking will have been done 8862 * so only perorming the action need be done here to keep the two 8863 * in sync. 8864 */ 8865static void 8866ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8867{ 8868 struct ctl_lun *lun; 8869 struct ctl_softc *softc; 8870 int i; 8871 uint32_t targ_lun; 8872 8873 softc = control_softc; 8874 8875 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8876 lun = softc->ctl_luns[targ_lun]; 8877 mtx_lock(&lun->lun_lock); 8878 switch(msg->pr.pr_info.action) { 8879 case CTL_PR_REG_KEY: 8880 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8881 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8882 lun->pr_key_count++; 8883 } 8884 lun->PRGeneration++; 8885 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8886 msg->pr.pr_info.sa_res_key, 8887 sizeof(struct scsi_per_res_key)); 8888 break; 8889 8890 case CTL_PR_UNREG_KEY: 8891 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8892 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8893 0, sizeof(struct scsi_per_res_key)); 8894 lun->pr_key_count--; 8895 8896 /* XXX Need to see if the reservation has been released */ 8897 /* if so do we need to generate UA? */ 8898 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8899 lun->flags &= ~CTL_LUN_PR_RESERVED; 8900 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8901 8902 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8903 || lun->res_type == SPR_TYPE_EX_AC_RO) 8904 && lun->pr_key_count) { 8905 /* 8906 * If the reservation is a registrants 8907 * only type we need to generate a UA 8908 * for other registered inits. The 8909 * sense code should be RESERVATIONS 8910 * RELEASED 8911 */ 8912 8913 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8914 if (lun->per_res[i+ 8915 persis_offset].registered == 0) 8916 continue; 8917 8918 lun->pending_sense[i 8919 ].ua_pending |= 8920 CTL_UA_RES_RELEASE; 8921 } 8922 } 8923 lun->res_type = 0; 8924 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8925 if (lun->pr_key_count==0) { 8926 lun->flags &= ~CTL_LUN_PR_RESERVED; 8927 lun->res_type = 0; 8928 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8929 } 8930 } 8931 lun->PRGeneration++; 8932 break; 8933 8934 case CTL_PR_RESERVE: 8935 lun->flags |= CTL_LUN_PR_RESERVED; 8936 lun->res_type = msg->pr.pr_info.res_type; 8937 lun->pr_res_idx = msg->pr.pr_info.residx; 8938 8939 break; 8940 8941 case CTL_PR_RELEASE: 8942 /* 8943 * if this isn't an exclusive access res generate UA for all 8944 * other registrants. 8945 */ 8946 if (lun->res_type != SPR_TYPE_EX_AC 8947 && lun->res_type != SPR_TYPE_WR_EX) { 8948 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8949 if (lun->per_res[i+persis_offset].registered) 8950 lun->pending_sense[i].ua_pending |= 8951 CTL_UA_RES_RELEASE; 8952 } 8953 8954 lun->flags &= ~CTL_LUN_PR_RESERVED; 8955 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8956 lun->res_type = 0; 8957 break; 8958 8959 case CTL_PR_PREEMPT: 8960 ctl_pro_preempt_other(lun, msg); 8961 break; 8962 case CTL_PR_CLEAR: 8963 lun->flags &= ~CTL_LUN_PR_RESERVED; 8964 lun->res_type = 0; 8965 lun->pr_key_count = 0; 8966 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8967 8968 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8969 if (lun->per_res[i].registered == 0) 8970 continue; 8971 if (!persis_offset 8972 && i < CTL_MAX_INITIATORS) 8973 lun->pending_sense[i].ua_pending |= 8974 CTL_UA_RES_PREEMPT; 8975 else if (persis_offset 8976 && i >= persis_offset) 8977 lun->pending_sense[i-persis_offset].ua_pending|= 8978 CTL_UA_RES_PREEMPT; 8979 memset(&lun->per_res[i].res_key, 0, 8980 sizeof(struct scsi_per_res_key)); 8981 lun->per_res[i].registered = 0; 8982 } 8983 lun->PRGeneration++; 8984 break; 8985 } 8986 8987 mtx_unlock(&lun->lun_lock); 8988} 8989 8990int 8991ctl_read_write(struct ctl_scsiio *ctsio) 8992{ 8993 struct ctl_lun *lun; 8994 struct ctl_lba_len_flags *lbalen; 8995 uint64_t lba; 8996 uint32_t num_blocks; 8997 int fua, dpo; 8998 int retval; 8999 int isread; 9000 9001 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9002 9003 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9004 9005 fua = 0; 9006 dpo = 0; 9007 9008 retval = CTL_RETVAL_COMPLETE; 9009 9010 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9011 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9012 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9013 uint32_t residx; 9014 9015 /* 9016 * XXX KDM need a lock here. 9017 */ 9018 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9019 if ((lun->res_type == SPR_TYPE_EX_AC 9020 && residx != lun->pr_res_idx) 9021 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9022 || lun->res_type == SPR_TYPE_EX_AC_AR) 9023 && !lun->per_res[residx].registered)) { 9024 ctl_set_reservation_conflict(ctsio); 9025 ctl_done((union ctl_io *)ctsio); 9026 return (CTL_RETVAL_COMPLETE); 9027 } 9028 } 9029 9030 switch (ctsio->cdb[0]) { 9031 case READ_6: 9032 case WRITE_6: { 9033 struct scsi_rw_6 *cdb; 9034 9035 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9036 9037 lba = scsi_3btoul(cdb->addr); 9038 /* only 5 bits are valid in the most significant address byte */ 9039 lba &= 0x1fffff; 9040 num_blocks = cdb->length; 9041 /* 9042 * This is correct according to SBC-2. 9043 */ 9044 if (num_blocks == 0) 9045 num_blocks = 256; 9046 break; 9047 } 9048 case READ_10: 9049 case WRITE_10: { 9050 struct scsi_rw_10 *cdb; 9051 9052 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9053 9054 if (cdb->byte2 & SRW10_FUA) 9055 fua = 1; 9056 if (cdb->byte2 & SRW10_DPO) 9057 dpo = 1; 9058 9059 lba = scsi_4btoul(cdb->addr); 9060 num_blocks = scsi_2btoul(cdb->length); 9061 break; 9062 } 9063 case WRITE_VERIFY_10: { 9064 struct scsi_write_verify_10 *cdb; 9065 9066 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9067 9068 /* 9069 * XXX KDM we should do actual write verify support at some 9070 * point. This is obviously fake, we're just translating 9071 * things to a write. So we don't even bother checking the 9072 * BYTCHK field, since we don't do any verification. If 9073 * the user asks for it, we'll just pretend we did it. 9074 */ 9075 if (cdb->byte2 & SWV_DPO) 9076 dpo = 1; 9077 9078 lba = scsi_4btoul(cdb->addr); 9079 num_blocks = scsi_2btoul(cdb->length); 9080 break; 9081 } 9082 case READ_12: 9083 case WRITE_12: { 9084 struct scsi_rw_12 *cdb; 9085 9086 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9087 9088 if (cdb->byte2 & SRW12_FUA) 9089 fua = 1; 9090 if (cdb->byte2 & SRW12_DPO) 9091 dpo = 1; 9092 lba = scsi_4btoul(cdb->addr); 9093 num_blocks = scsi_4btoul(cdb->length); 9094 break; 9095 } 9096 case WRITE_VERIFY_12: { 9097 struct scsi_write_verify_12 *cdb; 9098 9099 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9100 9101 if (cdb->byte2 & SWV_DPO) 9102 dpo = 1; 9103 9104 lba = scsi_4btoul(cdb->addr); 9105 num_blocks = scsi_4btoul(cdb->length); 9106 9107 break; 9108 } 9109 case READ_16: 9110 case WRITE_16: { 9111 struct scsi_rw_16 *cdb; 9112 9113 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9114 9115 if (cdb->byte2 & SRW12_FUA) 9116 fua = 1; 9117 if (cdb->byte2 & SRW12_DPO) 9118 dpo = 1; 9119 9120 lba = scsi_8btou64(cdb->addr); 9121 num_blocks = scsi_4btoul(cdb->length); 9122 break; 9123 } 9124 case WRITE_VERIFY_16: { 9125 struct scsi_write_verify_16 *cdb; 9126 9127 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9128 9129 if (cdb->byte2 & SWV_DPO) 9130 dpo = 1; 9131 9132 lba = scsi_8btou64(cdb->addr); 9133 num_blocks = scsi_4btoul(cdb->length); 9134 break; 9135 } 9136 default: 9137 /* 9138 * We got a command we don't support. This shouldn't 9139 * happen, commands should be filtered out above us. 9140 */ 9141 ctl_set_invalid_opcode(ctsio); 9142 ctl_done((union ctl_io *)ctsio); 9143 9144 return (CTL_RETVAL_COMPLETE); 9145 break; /* NOTREACHED */ 9146 } 9147 9148 /* 9149 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9150 * interesting for us, but if RAIDCore is in write-back mode, 9151 * getting it to do write-through for a particular transaction may 9152 * not be possible. 9153 */ 9154 9155 /* 9156 * The first check is to make sure we're in bounds, the second 9157 * check is to catch wrap-around problems. If the lba + num blocks 9158 * is less than the lba, then we've wrapped around and the block 9159 * range is invalid anyway. 9160 */ 9161 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9162 || ((lba + num_blocks) < lba)) { 9163 ctl_set_lba_out_of_range(ctsio); 9164 ctl_done((union ctl_io *)ctsio); 9165 return (CTL_RETVAL_COMPLETE); 9166 } 9167 9168 /* 9169 * According to SBC-3, a transfer length of 0 is not an error. 9170 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9171 * translates to 256 blocks for those commands. 9172 */ 9173 if (num_blocks == 0) { 9174 ctl_set_success(ctsio); 9175 ctl_done((union ctl_io *)ctsio); 9176 return (CTL_RETVAL_COMPLETE); 9177 } 9178 9179 lbalen = (struct ctl_lba_len_flags *) 9180 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9181 lbalen->lba = lba; 9182 lbalen->len = num_blocks; 9183 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9184 9185 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9186 ctsio->kern_rel_offset = 0; 9187 9188 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9189 9190 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9191 9192 return (retval); 9193} 9194 9195static int 9196ctl_cnw_cont(union ctl_io *io) 9197{ 9198 struct ctl_scsiio *ctsio; 9199 struct ctl_lun *lun; 9200 struct ctl_lba_len_flags *lbalen; 9201 int retval; 9202 9203 ctsio = &io->scsiio; 9204 ctsio->io_hdr.status = CTL_STATUS_NONE; 9205 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9206 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9207 lbalen = (struct ctl_lba_len_flags *) 9208 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9209 lbalen->flags = CTL_LLF_WRITE; 9210 9211 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9212 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9213 return (retval); 9214} 9215 9216int 9217ctl_cnw(struct ctl_scsiio *ctsio) 9218{ 9219 struct ctl_lun *lun; 9220 struct ctl_lba_len_flags *lbalen; 9221 uint64_t lba; 9222 uint32_t num_blocks; 9223 int fua, dpo; 9224 int retval; 9225 9226 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9227 9228 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9229 9230 fua = 0; 9231 dpo = 0; 9232 9233 retval = CTL_RETVAL_COMPLETE; 9234 9235 switch (ctsio->cdb[0]) { 9236 case COMPARE_AND_WRITE: { 9237 struct scsi_compare_and_write *cdb; 9238 9239 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9240 9241 if (cdb->byte2 & SRW10_FUA) 9242 fua = 1; 9243 if (cdb->byte2 & SRW10_DPO) 9244 dpo = 1; 9245 lba = scsi_8btou64(cdb->addr); 9246 num_blocks = cdb->length; 9247 break; 9248 } 9249 default: 9250 /* 9251 * We got a command we don't support. This shouldn't 9252 * happen, commands should be filtered out above us. 9253 */ 9254 ctl_set_invalid_opcode(ctsio); 9255 ctl_done((union ctl_io *)ctsio); 9256 9257 return (CTL_RETVAL_COMPLETE); 9258 break; /* NOTREACHED */ 9259 } 9260 9261 /* 9262 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9263 * interesting for us, but if RAIDCore is in write-back mode, 9264 * getting it to do write-through for a particular transaction may 9265 * not be possible. 9266 */ 9267 9268 /* 9269 * The first check is to make sure we're in bounds, the second 9270 * check is to catch wrap-around problems. If the lba + num blocks 9271 * is less than the lba, then we've wrapped around and the block 9272 * range is invalid anyway. 9273 */ 9274 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9275 || ((lba + num_blocks) < lba)) { 9276 ctl_set_lba_out_of_range(ctsio); 9277 ctl_done((union ctl_io *)ctsio); 9278 return (CTL_RETVAL_COMPLETE); 9279 } 9280 9281 /* 9282 * According to SBC-3, a transfer length of 0 is not an error. 9283 */ 9284 if (num_blocks == 0) { 9285 ctl_set_success(ctsio); 9286 ctl_done((union ctl_io *)ctsio); 9287 return (CTL_RETVAL_COMPLETE); 9288 } 9289 9290 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9291 ctsio->kern_rel_offset = 0; 9292 9293 /* 9294 * Set the IO_CONT flag, so that if this I/O gets passed to 9295 * ctl_data_submit_done(), it'll get passed back to 9296 * ctl_ctl_cnw_cont() for further processing. 9297 */ 9298 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9299 ctsio->io_cont = ctl_cnw_cont; 9300 9301 lbalen = (struct ctl_lba_len_flags *) 9302 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9303 lbalen->lba = lba; 9304 lbalen->len = num_blocks; 9305 lbalen->flags = CTL_LLF_COMPARE; 9306 9307 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9308 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9309 return (retval); 9310} 9311 9312int 9313ctl_verify(struct ctl_scsiio *ctsio) 9314{ 9315 struct ctl_lun *lun; 9316 struct ctl_lba_len_flags *lbalen; 9317 uint64_t lba; 9318 uint32_t num_blocks; 9319 int bytchk, dpo; 9320 int retval; 9321 9322 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9323 9324 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9325 9326 bytchk = 0; 9327 dpo = 0; 9328 retval = CTL_RETVAL_COMPLETE; 9329 9330 switch (ctsio->cdb[0]) { 9331 case VERIFY_10: { 9332 struct scsi_verify_10 *cdb; 9333 9334 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9335 if (cdb->byte2 & SVFY_BYTCHK) 9336 bytchk = 1; 9337 if (cdb->byte2 & SVFY_DPO) 9338 dpo = 1; 9339 lba = scsi_4btoul(cdb->addr); 9340 num_blocks = scsi_2btoul(cdb->length); 9341 break; 9342 } 9343 case VERIFY_12: { 9344 struct scsi_verify_12 *cdb; 9345 9346 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9347 if (cdb->byte2 & SVFY_BYTCHK) 9348 bytchk = 1; 9349 if (cdb->byte2 & SVFY_DPO) 9350 dpo = 1; 9351 lba = scsi_4btoul(cdb->addr); 9352 num_blocks = scsi_4btoul(cdb->length); 9353 break; 9354 } 9355 case VERIFY_16: { 9356 struct scsi_rw_16 *cdb; 9357 9358 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9359 if (cdb->byte2 & SVFY_BYTCHK) 9360 bytchk = 1; 9361 if (cdb->byte2 & SVFY_DPO) 9362 dpo = 1; 9363 lba = scsi_8btou64(cdb->addr); 9364 num_blocks = scsi_4btoul(cdb->length); 9365 break; 9366 } 9367 default: 9368 /* 9369 * We got a command we don't support. This shouldn't 9370 * happen, commands should be filtered out above us. 9371 */ 9372 ctl_set_invalid_opcode(ctsio); 9373 ctl_done((union ctl_io *)ctsio); 9374 return (CTL_RETVAL_COMPLETE); 9375 } 9376 9377 /* 9378 * The first check is to make sure we're in bounds, the second 9379 * check is to catch wrap-around problems. If the lba + num blocks 9380 * is less than the lba, then we've wrapped around and the block 9381 * range is invalid anyway. 9382 */ 9383 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9384 || ((lba + num_blocks) < lba)) { 9385 ctl_set_lba_out_of_range(ctsio); 9386 ctl_done((union ctl_io *)ctsio); 9387 return (CTL_RETVAL_COMPLETE); 9388 } 9389 9390 /* 9391 * According to SBC-3, a transfer length of 0 is not an error. 9392 */ 9393 if (num_blocks == 0) { 9394 ctl_set_success(ctsio); 9395 ctl_done((union ctl_io *)ctsio); 9396 return (CTL_RETVAL_COMPLETE); 9397 } 9398 9399 lbalen = (struct ctl_lba_len_flags *) 9400 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9401 lbalen->lba = lba; 9402 lbalen->len = num_blocks; 9403 if (bytchk) { 9404 lbalen->flags = CTL_LLF_COMPARE; 9405 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9406 } else { 9407 lbalen->flags = CTL_LLF_VERIFY; 9408 ctsio->kern_total_len = 0; 9409 } 9410 ctsio->kern_rel_offset = 0; 9411 9412 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9413 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9414 return (retval); 9415} 9416 9417int 9418ctl_report_luns(struct ctl_scsiio *ctsio) 9419{ 9420 struct scsi_report_luns *cdb; 9421 struct scsi_report_luns_data *lun_data; 9422 struct ctl_lun *lun, *request_lun; 9423 int num_luns, retval; 9424 uint32_t alloc_len, lun_datalen; 9425 int num_filled, well_known; 9426 uint32_t initidx, targ_lun_id, lun_id; 9427 9428 retval = CTL_RETVAL_COMPLETE; 9429 well_known = 0; 9430 9431 cdb = (struct scsi_report_luns *)ctsio->cdb; 9432 9433 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9434 9435 mtx_lock(&control_softc->ctl_lock); 9436 num_luns = control_softc->num_luns; 9437 mtx_unlock(&control_softc->ctl_lock); 9438 9439 switch (cdb->select_report) { 9440 case RPL_REPORT_DEFAULT: 9441 case RPL_REPORT_ALL: 9442 break; 9443 case RPL_REPORT_WELLKNOWN: 9444 well_known = 1; 9445 num_luns = 0; 9446 break; 9447 default: 9448 ctl_set_invalid_field(ctsio, 9449 /*sks_valid*/ 1, 9450 /*command*/ 1, 9451 /*field*/ 2, 9452 /*bit_valid*/ 0, 9453 /*bit*/ 0); 9454 ctl_done((union ctl_io *)ctsio); 9455 return (retval); 9456 break; /* NOTREACHED */ 9457 } 9458 9459 alloc_len = scsi_4btoul(cdb->length); 9460 /* 9461 * The initiator has to allocate at least 16 bytes for this request, 9462 * so he can at least get the header and the first LUN. Otherwise 9463 * we reject the request (per SPC-3 rev 14, section 6.21). 9464 */ 9465 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9466 sizeof(struct scsi_report_luns_lundata))) { 9467 ctl_set_invalid_field(ctsio, 9468 /*sks_valid*/ 1, 9469 /*command*/ 1, 9470 /*field*/ 6, 9471 /*bit_valid*/ 0, 9472 /*bit*/ 0); 9473 ctl_done((union ctl_io *)ctsio); 9474 return (retval); 9475 } 9476 9477 request_lun = (struct ctl_lun *) 9478 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9479 9480 lun_datalen = sizeof(*lun_data) + 9481 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9482 9483 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9484 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9485 ctsio->kern_sg_entries = 0; 9486 9487 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9488 9489 mtx_lock(&control_softc->ctl_lock); 9490 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9491 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9492 if (lun_id >= CTL_MAX_LUNS) 9493 continue; 9494 lun = control_softc->ctl_luns[lun_id]; 9495 if (lun == NULL) 9496 continue; 9497 9498 if (targ_lun_id <= 0xff) { 9499 /* 9500 * Peripheral addressing method, bus number 0. 9501 */ 9502 lun_data->luns[num_filled].lundata[0] = 9503 RPL_LUNDATA_ATYP_PERIPH; 9504 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9505 num_filled++; 9506 } else if (targ_lun_id <= 0x3fff) { 9507 /* 9508 * Flat addressing method. 9509 */ 9510 lun_data->luns[num_filled].lundata[0] = 9511 RPL_LUNDATA_ATYP_FLAT | 9512 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9513#ifdef OLDCTLHEADERS 9514 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9515 (targ_lun_id & SRLD_BUS_LUN_MASK); 9516#endif 9517 lun_data->luns[num_filled].lundata[1] = 9518#ifdef OLDCTLHEADERS 9519 targ_lun_id >> SRLD_BUS_LUN_BITS; 9520#endif 9521 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9522 num_filled++; 9523 } else { 9524 printf("ctl_report_luns: bogus LUN number %jd, " 9525 "skipping\n", (intmax_t)targ_lun_id); 9526 } 9527 /* 9528 * According to SPC-3, rev 14 section 6.21: 9529 * 9530 * "The execution of a REPORT LUNS command to any valid and 9531 * installed logical unit shall clear the REPORTED LUNS DATA 9532 * HAS CHANGED unit attention condition for all logical 9533 * units of that target with respect to the requesting 9534 * initiator. A valid and installed logical unit is one 9535 * having a PERIPHERAL QUALIFIER of 000b in the standard 9536 * INQUIRY data (see 6.4.2)." 9537 * 9538 * If request_lun is NULL, the LUN this report luns command 9539 * was issued to is either disabled or doesn't exist. In that 9540 * case, we shouldn't clear any pending lun change unit 9541 * attention. 9542 */ 9543 if (request_lun != NULL) { 9544 mtx_lock(&lun->lun_lock); 9545 lun->pending_sense[initidx].ua_pending &= 9546 ~CTL_UA_LUN_CHANGE; 9547 mtx_unlock(&lun->lun_lock); 9548 } 9549 } 9550 mtx_unlock(&control_softc->ctl_lock); 9551 9552 /* 9553 * It's quite possible that we've returned fewer LUNs than we allocated 9554 * space for. Trim it. 9555 */ 9556 lun_datalen = sizeof(*lun_data) + 9557 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9558 9559 if (lun_datalen < alloc_len) { 9560 ctsio->residual = alloc_len - lun_datalen; 9561 ctsio->kern_data_len = lun_datalen; 9562 ctsio->kern_total_len = lun_datalen; 9563 } else { 9564 ctsio->residual = 0; 9565 ctsio->kern_data_len = alloc_len; 9566 ctsio->kern_total_len = alloc_len; 9567 } 9568 ctsio->kern_data_resid = 0; 9569 ctsio->kern_rel_offset = 0; 9570 ctsio->kern_sg_entries = 0; 9571 9572 /* 9573 * We set this to the actual data length, regardless of how much 9574 * space we actually have to return results. If the user looks at 9575 * this value, he'll know whether or not he allocated enough space 9576 * and reissue the command if necessary. We don't support well 9577 * known logical units, so if the user asks for that, return none. 9578 */ 9579 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9580 9581 /* 9582 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9583 * this request. 9584 */ 9585 ctsio->scsi_status = SCSI_STATUS_OK; 9586 9587 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9588 ctsio->be_move_done = ctl_config_move_done; 9589 ctl_datamove((union ctl_io *)ctsio); 9590 9591 return (retval); 9592} 9593 9594int 9595ctl_request_sense(struct ctl_scsiio *ctsio) 9596{ 9597 struct scsi_request_sense *cdb; 9598 struct scsi_sense_data *sense_ptr; 9599 struct ctl_lun *lun; 9600 uint32_t initidx; 9601 int have_error; 9602 scsi_sense_data_type sense_format; 9603 9604 cdb = (struct scsi_request_sense *)ctsio->cdb; 9605 9606 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9607 9608 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9609 9610 /* 9611 * Determine which sense format the user wants. 9612 */ 9613 if (cdb->byte2 & SRS_DESC) 9614 sense_format = SSD_TYPE_DESC; 9615 else 9616 sense_format = SSD_TYPE_FIXED; 9617 9618 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9619 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9620 ctsio->kern_sg_entries = 0; 9621 9622 /* 9623 * struct scsi_sense_data, which is currently set to 256 bytes, is 9624 * larger than the largest allowed value for the length field in the 9625 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9626 */ 9627 ctsio->residual = 0; 9628 ctsio->kern_data_len = cdb->length; 9629 ctsio->kern_total_len = cdb->length; 9630 9631 ctsio->kern_data_resid = 0; 9632 ctsio->kern_rel_offset = 0; 9633 ctsio->kern_sg_entries = 0; 9634 9635 /* 9636 * If we don't have a LUN, we don't have any pending sense. 9637 */ 9638 if (lun == NULL) 9639 goto no_sense; 9640 9641 have_error = 0; 9642 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9643 /* 9644 * Check for pending sense, and then for pending unit attentions. 9645 * Pending sense gets returned first, then pending unit attentions. 9646 */ 9647 mtx_lock(&lun->lun_lock); 9648 if (ctl_is_set(lun->have_ca, initidx)) { 9649 scsi_sense_data_type stored_format; 9650 9651 /* 9652 * Check to see which sense format was used for the stored 9653 * sense data. 9654 */ 9655 stored_format = scsi_sense_type( 9656 &lun->pending_sense[initidx].sense); 9657 9658 /* 9659 * If the user requested a different sense format than the 9660 * one we stored, then we need to convert it to the other 9661 * format. If we're going from descriptor to fixed format 9662 * sense data, we may lose things in translation, depending 9663 * on what options were used. 9664 * 9665 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9666 * for some reason we'll just copy it out as-is. 9667 */ 9668 if ((stored_format == SSD_TYPE_FIXED) 9669 && (sense_format == SSD_TYPE_DESC)) 9670 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9671 &lun->pending_sense[initidx].sense, 9672 (struct scsi_sense_data_desc *)sense_ptr); 9673 else if ((stored_format == SSD_TYPE_DESC) 9674 && (sense_format == SSD_TYPE_FIXED)) 9675 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9676 &lun->pending_sense[initidx].sense, 9677 (struct scsi_sense_data_fixed *)sense_ptr); 9678 else 9679 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9680 ctl_min(sizeof(*sense_ptr), 9681 sizeof(lun->pending_sense[initidx].sense))); 9682 9683 ctl_clear_mask(lun->have_ca, initidx); 9684 have_error = 1; 9685 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9686 ctl_ua_type ua_type; 9687 9688 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9689 sense_ptr, sense_format); 9690 if (ua_type != CTL_UA_NONE) { 9691 have_error = 1; 9692 /* We're reporting this UA, so clear it */ 9693 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9694 } 9695 } 9696 mtx_unlock(&lun->lun_lock); 9697 9698 /* 9699 * We already have a pending error, return it. 9700 */ 9701 if (have_error != 0) { 9702 /* 9703 * We report the SCSI status as OK, since the status of the 9704 * request sense command itself is OK. 9705 */ 9706 ctsio->scsi_status = SCSI_STATUS_OK; 9707 9708 /* 9709 * We report 0 for the sense length, because we aren't doing 9710 * autosense in this case. We're reporting sense as 9711 * parameter data. 9712 */ 9713 ctsio->sense_len = 0; 9714 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9715 ctsio->be_move_done = ctl_config_move_done; 9716 ctl_datamove((union ctl_io *)ctsio); 9717 9718 return (CTL_RETVAL_COMPLETE); 9719 } 9720 9721no_sense: 9722 9723 /* 9724 * No sense information to report, so we report that everything is 9725 * okay. 9726 */ 9727 ctl_set_sense_data(sense_ptr, 9728 lun, 9729 sense_format, 9730 /*current_error*/ 1, 9731 /*sense_key*/ SSD_KEY_NO_SENSE, 9732 /*asc*/ 0x00, 9733 /*ascq*/ 0x00, 9734 SSD_ELEM_NONE); 9735 9736 ctsio->scsi_status = SCSI_STATUS_OK; 9737 9738 /* 9739 * We report 0 for the sense length, because we aren't doing 9740 * autosense in this case. We're reporting sense as parameter data. 9741 */ 9742 ctsio->sense_len = 0; 9743 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9744 ctsio->be_move_done = ctl_config_move_done; 9745 ctl_datamove((union ctl_io *)ctsio); 9746 9747 return (CTL_RETVAL_COMPLETE); 9748} 9749 9750int 9751ctl_tur(struct ctl_scsiio *ctsio) 9752{ 9753 struct ctl_lun *lun; 9754 9755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9756 9757 CTL_DEBUG_PRINT(("ctl_tur\n")); 9758 9759 if (lun == NULL) 9760 return (EINVAL); 9761 9762 ctsio->scsi_status = SCSI_STATUS_OK; 9763 ctsio->io_hdr.status = CTL_SUCCESS; 9764 9765 ctl_done((union ctl_io *)ctsio); 9766 9767 return (CTL_RETVAL_COMPLETE); 9768} 9769 9770#ifdef notyet 9771static int 9772ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9773{ 9774 9775} 9776#endif 9777 9778static int 9779ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9780{ 9781 struct scsi_vpd_supported_pages *pages; 9782 int sup_page_size; 9783 struct ctl_lun *lun; 9784 9785 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9786 9787 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9788 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9789 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9790 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9791 ctsio->kern_sg_entries = 0; 9792 9793 if (sup_page_size < alloc_len) { 9794 ctsio->residual = alloc_len - sup_page_size; 9795 ctsio->kern_data_len = sup_page_size; 9796 ctsio->kern_total_len = sup_page_size; 9797 } else { 9798 ctsio->residual = 0; 9799 ctsio->kern_data_len = alloc_len; 9800 ctsio->kern_total_len = alloc_len; 9801 } 9802 ctsio->kern_data_resid = 0; 9803 ctsio->kern_rel_offset = 0; 9804 ctsio->kern_sg_entries = 0; 9805 9806 /* 9807 * The control device is always connected. The disk device, on the 9808 * other hand, may not be online all the time. Need to change this 9809 * to figure out whether the disk device is actually online or not. 9810 */ 9811 if (lun != NULL) 9812 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9813 lun->be_lun->lun_type; 9814 else 9815 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9816 9817 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9818 /* Supported VPD pages */ 9819 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9820 /* Serial Number */ 9821 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9822 /* Device Identification */ 9823 pages->page_list[2] = SVPD_DEVICE_ID; 9824 /* SCSI Ports */ 9825 pages->page_list[3] = SVPD_SCSI_PORTS; 9826 /* Block limits */ 9827 pages->page_list[4] = SVPD_BLOCK_LIMITS; 9828 /* Logical Block Provisioning */ 9829 pages->page_list[5] = SVPD_LBP; 9830 9831 ctsio->scsi_status = SCSI_STATUS_OK; 9832 9833 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9834 ctsio->be_move_done = ctl_config_move_done; 9835 ctl_datamove((union ctl_io *)ctsio); 9836 9837 return (CTL_RETVAL_COMPLETE); 9838} 9839 9840static int 9841ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9842{ 9843 struct scsi_vpd_unit_serial_number *sn_ptr; 9844 struct ctl_lun *lun; 9845 9846 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9847 9848 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9849 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9850 ctsio->kern_sg_entries = 0; 9851 9852 if (sizeof(*sn_ptr) < alloc_len) { 9853 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9854 ctsio->kern_data_len = sizeof(*sn_ptr); 9855 ctsio->kern_total_len = sizeof(*sn_ptr); 9856 } else { 9857 ctsio->residual = 0; 9858 ctsio->kern_data_len = alloc_len; 9859 ctsio->kern_total_len = alloc_len; 9860 } 9861 ctsio->kern_data_resid = 0; 9862 ctsio->kern_rel_offset = 0; 9863 ctsio->kern_sg_entries = 0; 9864 9865 /* 9866 * The control device is always connected. The disk device, on the 9867 * other hand, may not be online all the time. Need to change this 9868 * to figure out whether the disk device is actually online or not. 9869 */ 9870 if (lun != NULL) 9871 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9872 lun->be_lun->lun_type; 9873 else 9874 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9875 9876 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9877 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9878 /* 9879 * If we don't have a LUN, we just leave the serial number as 9880 * all spaces. 9881 */ 9882 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9883 if (lun != NULL) { 9884 strncpy((char *)sn_ptr->serial_num, 9885 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9886 } 9887 ctsio->scsi_status = SCSI_STATUS_OK; 9888 9889 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9890 ctsio->be_move_done = ctl_config_move_done; 9891 ctl_datamove((union ctl_io *)ctsio); 9892 9893 return (CTL_RETVAL_COMPLETE); 9894} 9895 9896 9897static int 9898ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9899{ 9900 struct scsi_vpd_device_id *devid_ptr; 9901 struct scsi_vpd_id_descriptor *desc; 9902 struct ctl_softc *ctl_softc; 9903 struct ctl_lun *lun; 9904 struct ctl_port *port; 9905 int data_len; 9906 uint8_t proto; 9907 9908 ctl_softc = control_softc; 9909 9910 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9911 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9912 9913 data_len = sizeof(struct scsi_vpd_device_id) + 9914 sizeof(struct scsi_vpd_id_descriptor) + 9915 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9916 sizeof(struct scsi_vpd_id_descriptor) + 9917 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9918 if (lun && lun->lun_devid) 9919 data_len += lun->lun_devid->len; 9920 if (port->port_devid) 9921 data_len += port->port_devid->len; 9922 if (port->target_devid) 9923 data_len += port->target_devid->len; 9924 9925 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9926 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9927 ctsio->kern_sg_entries = 0; 9928 9929 if (data_len < alloc_len) { 9930 ctsio->residual = alloc_len - data_len; 9931 ctsio->kern_data_len = data_len; 9932 ctsio->kern_total_len = data_len; 9933 } else { 9934 ctsio->residual = 0; 9935 ctsio->kern_data_len = alloc_len; 9936 ctsio->kern_total_len = alloc_len; 9937 } 9938 ctsio->kern_data_resid = 0; 9939 ctsio->kern_rel_offset = 0; 9940 ctsio->kern_sg_entries = 0; 9941 9942 /* 9943 * The control device is always connected. The disk device, on the 9944 * other hand, may not be online all the time. 9945 */ 9946 if (lun != NULL) 9947 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9948 lun->be_lun->lun_type; 9949 else 9950 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9951 devid_ptr->page_code = SVPD_DEVICE_ID; 9952 scsi_ulto2b(data_len - 4, devid_ptr->length); 9953 9954 if (port->port_type == CTL_PORT_FC) 9955 proto = SCSI_PROTO_FC << 4; 9956 else if (port->port_type == CTL_PORT_ISCSI) 9957 proto = SCSI_PROTO_ISCSI << 4; 9958 else 9959 proto = SCSI_PROTO_SPI << 4; 9960 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9961 9962 /* 9963 * We're using a LUN association here. i.e., this device ID is a 9964 * per-LUN identifier. 9965 */ 9966 if (lun && lun->lun_devid) { 9967 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9968 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9969 lun->lun_devid->len); 9970 } 9971 9972 /* 9973 * This is for the WWPN which is a port association. 9974 */ 9975 if (port->port_devid) { 9976 memcpy(desc, port->port_devid->data, port->port_devid->len); 9977 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9978 port->port_devid->len); 9979 } 9980 9981 /* 9982 * This is for the Relative Target Port(type 4h) identifier 9983 */ 9984 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9985 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9986 SVPD_ID_TYPE_RELTARG; 9987 desc->length = 4; 9988 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9989 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9990 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9991 9992 /* 9993 * This is for the Target Port Group(type 5h) identifier 9994 */ 9995 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9996 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9997 SVPD_ID_TYPE_TPORTGRP; 9998 desc->length = 4; 9999 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10000 &desc->identifier[2]); 10001 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10002 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10003 10004 /* 10005 * This is for the Target identifier 10006 */ 10007 if (port->target_devid) { 10008 memcpy(desc, port->target_devid->data, port->target_devid->len); 10009 } 10010 10011 ctsio->scsi_status = SCSI_STATUS_OK; 10012 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10013 ctsio->be_move_done = ctl_config_move_done; 10014 ctl_datamove((union ctl_io *)ctsio); 10015 10016 return (CTL_RETVAL_COMPLETE); 10017} 10018 10019static int 10020ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10021{ 10022 struct ctl_softc *softc = control_softc; 10023 struct scsi_vpd_scsi_ports *sp; 10024 struct scsi_vpd_port_designation *pd; 10025 struct scsi_vpd_port_designation_cont *pdc; 10026 struct ctl_lun *lun; 10027 struct ctl_port *port; 10028 int data_len, num_target_ports, id_len, g, pg, p; 10029 int num_target_port_groups, single; 10030 10031 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10032 10033 single = ctl_is_single; 10034 if (single) 10035 num_target_port_groups = 1; 10036 else 10037 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10038 num_target_ports = 0; 10039 id_len = 0; 10040 mtx_lock(&softc->ctl_lock); 10041 STAILQ_FOREACH(port, &softc->port_list, links) { 10042 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10043 continue; 10044 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10045 CTL_MAX_LUNS) 10046 continue; 10047 num_target_ports++; 10048 if (port->port_devid) 10049 id_len += port->port_devid->len; 10050 } 10051 mtx_unlock(&softc->ctl_lock); 10052 10053 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10054 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10055 sizeof(struct scsi_vpd_port_designation_cont)) + id_len; 10056 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10057 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10058 ctsio->kern_sg_entries = 0; 10059 10060 if (data_len < alloc_len) { 10061 ctsio->residual = alloc_len - data_len; 10062 ctsio->kern_data_len = data_len; 10063 ctsio->kern_total_len = data_len; 10064 } else { 10065 ctsio->residual = 0; 10066 ctsio->kern_data_len = alloc_len; 10067 ctsio->kern_total_len = alloc_len; 10068 } 10069 ctsio->kern_data_resid = 0; 10070 ctsio->kern_rel_offset = 0; 10071 ctsio->kern_sg_entries = 0; 10072 10073 /* 10074 * The control device is always connected. The disk device, on the 10075 * other hand, may not be online all the time. Need to change this 10076 * to figure out whether the disk device is actually online or not. 10077 */ 10078 if (lun != NULL) 10079 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10080 lun->be_lun->lun_type; 10081 else 10082 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10083 10084 sp->page_code = SVPD_SCSI_PORTS; 10085 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10086 sp->page_length); 10087 pd = &sp->design[0]; 10088 10089 mtx_lock(&softc->ctl_lock); 10090 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10091 pg = 0; 10092 else 10093 pg = 1; 10094 for (g = 0; g < num_target_port_groups; g++) { 10095 STAILQ_FOREACH(port, &softc->port_list, links) { 10096 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10097 continue; 10098 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10099 CTL_MAX_LUNS) 10100 continue; 10101 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10102 scsi_ulto2b(p, pd->relative_port_id); 10103 scsi_ulto2b(0, pd->initiator_transportid_length); 10104 pdc = (struct scsi_vpd_port_designation_cont *) 10105 &pd->initiator_transportid[0]; 10106 if (port->port_devid && g == pg) { 10107 id_len = port->port_devid->len; 10108 scsi_ulto2b(port->port_devid->len, 10109 pdc->target_port_descriptors_length); 10110 memcpy(pdc->target_port_descriptors, 10111 port->port_devid->data, port->port_devid->len); 10112 } else { 10113 id_len = 0; 10114 scsi_ulto2b(0, pdc->target_port_descriptors_length); 10115 } 10116 pd = (struct scsi_vpd_port_designation *) 10117 ((uint8_t *)pdc->target_port_descriptors + id_len); 10118 } 10119 } 10120 mtx_unlock(&softc->ctl_lock); 10121 10122 ctsio->scsi_status = SCSI_STATUS_OK; 10123 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10124 ctsio->be_move_done = ctl_config_move_done; 10125 ctl_datamove((union ctl_io *)ctsio); 10126 10127 return (CTL_RETVAL_COMPLETE); 10128} 10129 10130static int 10131ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10132{ 10133 struct scsi_vpd_block_limits *bl_ptr; 10134 struct ctl_lun *lun; 10135 int bs; 10136 10137 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10138 bs = lun->be_lun->blocksize; 10139 10140 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10141 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10142 ctsio->kern_sg_entries = 0; 10143 10144 if (sizeof(*bl_ptr) < alloc_len) { 10145 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10146 ctsio->kern_data_len = sizeof(*bl_ptr); 10147 ctsio->kern_total_len = sizeof(*bl_ptr); 10148 } else { 10149 ctsio->residual = 0; 10150 ctsio->kern_data_len = alloc_len; 10151 ctsio->kern_total_len = alloc_len; 10152 } 10153 ctsio->kern_data_resid = 0; 10154 ctsio->kern_rel_offset = 0; 10155 ctsio->kern_sg_entries = 0; 10156 10157 /* 10158 * The control device is always connected. The disk device, on the 10159 * other hand, may not be online all the time. Need to change this 10160 * to figure out whether the disk device is actually online or not. 10161 */ 10162 if (lun != NULL) 10163 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10164 lun->be_lun->lun_type; 10165 else 10166 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10167 10168 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10169 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10170 bl_ptr->max_cmp_write_len = 0xff; 10171 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10172 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10173 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10174 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10175 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10176 } 10177 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10178 10179 ctsio->scsi_status = SCSI_STATUS_OK; 10180 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10181 ctsio->be_move_done = ctl_config_move_done; 10182 ctl_datamove((union ctl_io *)ctsio); 10183 10184 return (CTL_RETVAL_COMPLETE); 10185} 10186 10187static int 10188ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10189{ 10190 struct scsi_vpd_logical_block_prov *lbp_ptr; 10191 struct ctl_lun *lun; 10192 int bs; 10193 10194 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10195 bs = lun->be_lun->blocksize; 10196 10197 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10198 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10199 ctsio->kern_sg_entries = 0; 10200 10201 if (sizeof(*lbp_ptr) < alloc_len) { 10202 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10203 ctsio->kern_data_len = sizeof(*lbp_ptr); 10204 ctsio->kern_total_len = sizeof(*lbp_ptr); 10205 } else { 10206 ctsio->residual = 0; 10207 ctsio->kern_data_len = alloc_len; 10208 ctsio->kern_total_len = alloc_len; 10209 } 10210 ctsio->kern_data_resid = 0; 10211 ctsio->kern_rel_offset = 0; 10212 ctsio->kern_sg_entries = 0; 10213 10214 /* 10215 * The control device is always connected. The disk device, on the 10216 * other hand, may not be online all the time. Need to change this 10217 * to figure out whether the disk device is actually online or not. 10218 */ 10219 if (lun != NULL) 10220 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10221 lun->be_lun->lun_type; 10222 else 10223 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10224 10225 lbp_ptr->page_code = SVPD_LBP; 10226 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10227 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10228 10229 ctsio->scsi_status = SCSI_STATUS_OK; 10230 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10231 ctsio->be_move_done = ctl_config_move_done; 10232 ctl_datamove((union ctl_io *)ctsio); 10233 10234 return (CTL_RETVAL_COMPLETE); 10235} 10236 10237static int 10238ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10239{ 10240 struct scsi_inquiry *cdb; 10241 struct ctl_lun *lun; 10242 int alloc_len, retval; 10243 10244 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10245 cdb = (struct scsi_inquiry *)ctsio->cdb; 10246 10247 retval = CTL_RETVAL_COMPLETE; 10248 10249 alloc_len = scsi_2btoul(cdb->length); 10250 10251 switch (cdb->page_code) { 10252 case SVPD_SUPPORTED_PAGES: 10253 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10254 break; 10255 case SVPD_UNIT_SERIAL_NUMBER: 10256 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10257 break; 10258 case SVPD_DEVICE_ID: 10259 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10260 break; 10261 case SVPD_SCSI_PORTS: 10262 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10263 break; 10264 case SVPD_BLOCK_LIMITS: 10265 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10266 break; 10267 case SVPD_LBP: 10268 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10269 break; 10270 default: 10271 ctl_set_invalid_field(ctsio, 10272 /*sks_valid*/ 1, 10273 /*command*/ 1, 10274 /*field*/ 2, 10275 /*bit_valid*/ 0, 10276 /*bit*/ 0); 10277 ctl_done((union ctl_io *)ctsio); 10278 retval = CTL_RETVAL_COMPLETE; 10279 break; 10280 } 10281 10282 return (retval); 10283} 10284 10285static int 10286ctl_inquiry_std(struct ctl_scsiio *ctsio) 10287{ 10288 struct scsi_inquiry_data *inq_ptr; 10289 struct scsi_inquiry *cdb; 10290 struct ctl_softc *ctl_softc; 10291 struct ctl_lun *lun; 10292 char *val; 10293 uint32_t alloc_len; 10294 int is_fc; 10295 10296 ctl_softc = control_softc; 10297 10298 /* 10299 * Figure out whether we're talking to a Fibre Channel port or not. 10300 * We treat the ioctl front end, and any SCSI adapters, as packetized 10301 * SCSI front ends. 10302 */ 10303 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 10304 CTL_PORT_FC) 10305 is_fc = 0; 10306 else 10307 is_fc = 1; 10308 10309 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10310 cdb = (struct scsi_inquiry *)ctsio->cdb; 10311 alloc_len = scsi_2btoul(cdb->length); 10312 10313 /* 10314 * We malloc the full inquiry data size here and fill it 10315 * in. If the user only asks for less, we'll give him 10316 * that much. 10317 */ 10318 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10319 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10320 ctsio->kern_sg_entries = 0; 10321 ctsio->kern_data_resid = 0; 10322 ctsio->kern_rel_offset = 0; 10323 10324 if (sizeof(*inq_ptr) < alloc_len) { 10325 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10326 ctsio->kern_data_len = sizeof(*inq_ptr); 10327 ctsio->kern_total_len = sizeof(*inq_ptr); 10328 } else { 10329 ctsio->residual = 0; 10330 ctsio->kern_data_len = alloc_len; 10331 ctsio->kern_total_len = alloc_len; 10332 } 10333 10334 /* 10335 * If we have a LUN configured, report it as connected. Otherwise, 10336 * report that it is offline or no device is supported, depending 10337 * on the value of inquiry_pq_no_lun. 10338 * 10339 * According to the spec (SPC-4 r34), the peripheral qualifier 10340 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10341 * 10342 * "A peripheral device having the specified peripheral device type 10343 * is not connected to this logical unit. However, the device 10344 * server is capable of supporting the specified peripheral device 10345 * type on this logical unit." 10346 * 10347 * According to the same spec, the peripheral qualifier 10348 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10349 * 10350 * "The device server is not capable of supporting a peripheral 10351 * device on this logical unit. For this peripheral qualifier the 10352 * peripheral device type shall be set to 1Fh. All other peripheral 10353 * device type values are reserved for this peripheral qualifier." 10354 * 10355 * Given the text, it would seem that we probably want to report that 10356 * the LUN is offline here. There is no LUN connected, but we can 10357 * support a LUN at the given LUN number. 10358 * 10359 * In the real world, though, it sounds like things are a little 10360 * different: 10361 * 10362 * - Linux, when presented with a LUN with the offline peripheral 10363 * qualifier, will create an sg driver instance for it. So when 10364 * you attach it to CTL, you wind up with a ton of sg driver 10365 * instances. (One for every LUN that Linux bothered to probe.) 10366 * Linux does this despite the fact that it issues a REPORT LUNs 10367 * to LUN 0 to get the inventory of supported LUNs. 10368 * 10369 * - There is other anecdotal evidence (from Emulex folks) about 10370 * arrays that use the offline peripheral qualifier for LUNs that 10371 * are on the "passive" path in an active/passive array. 10372 * 10373 * So the solution is provide a hopefully reasonable default 10374 * (return bad/no LUN) and allow the user to change the behavior 10375 * with a tunable/sysctl variable. 10376 */ 10377 if (lun != NULL) 10378 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10379 lun->be_lun->lun_type; 10380 else if (ctl_softc->inquiry_pq_no_lun == 0) 10381 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10382 else 10383 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10384 10385 /* RMB in byte 2 is 0 */ 10386 inq_ptr->version = SCSI_REV_SPC3; 10387 10388 /* 10389 * According to SAM-3, even if a device only supports a single 10390 * level of LUN addressing, it should still set the HISUP bit: 10391 * 10392 * 4.9.1 Logical unit numbers overview 10393 * 10394 * All logical unit number formats described in this standard are 10395 * hierarchical in structure even when only a single level in that 10396 * hierarchy is used. The HISUP bit shall be set to one in the 10397 * standard INQUIRY data (see SPC-2) when any logical unit number 10398 * format described in this standard is used. Non-hierarchical 10399 * formats are outside the scope of this standard. 10400 * 10401 * Therefore we set the HiSup bit here. 10402 * 10403 * The reponse format is 2, per SPC-3. 10404 */ 10405 inq_ptr->response_format = SID_HiSup | 2; 10406 10407 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10408 CTL_DEBUG_PRINT(("additional_length = %d\n", 10409 inq_ptr->additional_length)); 10410 10411 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10412 /* 16 bit addressing */ 10413 if (is_fc == 0) 10414 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10415 /* XXX set the SID_MultiP bit here if we're actually going to 10416 respond on multiple ports */ 10417 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10418 10419 /* 16 bit data bus, synchronous transfers */ 10420 /* XXX these flags don't apply for FC */ 10421 if (is_fc == 0) 10422 inq_ptr->flags = SID_WBus16 | SID_Sync; 10423 /* 10424 * XXX KDM do we want to support tagged queueing on the control 10425 * device at all? 10426 */ 10427 if ((lun == NULL) 10428 || (lun->be_lun->lun_type != T_PROCESSOR)) 10429 inq_ptr->flags |= SID_CmdQue; 10430 /* 10431 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10432 * We have 8 bytes for the vendor name, and 16 bytes for the device 10433 * name and 4 bytes for the revision. 10434 */ 10435 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10436 "vendor")) == NULL) { 10437 strcpy(inq_ptr->vendor, CTL_VENDOR); 10438 } else { 10439 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10440 strncpy(inq_ptr->vendor, val, 10441 min(sizeof(inq_ptr->vendor), strlen(val))); 10442 } 10443 if (lun == NULL) { 10444 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10445 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10446 switch (lun->be_lun->lun_type) { 10447 case T_DIRECT: 10448 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10449 break; 10450 case T_PROCESSOR: 10451 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10452 break; 10453 default: 10454 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10455 break; 10456 } 10457 } else { 10458 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10459 strncpy(inq_ptr->product, val, 10460 min(sizeof(inq_ptr->product), strlen(val))); 10461 } 10462 10463 /* 10464 * XXX make this a macro somewhere so it automatically gets 10465 * incremented when we make changes. 10466 */ 10467 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10468 "revision")) == NULL) { 10469 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10470 } else { 10471 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10472 strncpy(inq_ptr->revision, val, 10473 min(sizeof(inq_ptr->revision), strlen(val))); 10474 } 10475 10476 /* 10477 * For parallel SCSI, we support double transition and single 10478 * transition clocking. We also support QAS (Quick Arbitration 10479 * and Selection) and Information Unit transfers on both the 10480 * control and array devices. 10481 */ 10482 if (is_fc == 0) 10483 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10484 SID_SPI_IUS; 10485 10486 /* SAM-3 */ 10487 scsi_ulto2b(0x0060, inq_ptr->version1); 10488 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10489 scsi_ulto2b(0x0300, inq_ptr->version2); 10490 if (is_fc) { 10491 /* FCP-2 ANSI INCITS.350:2003 */ 10492 scsi_ulto2b(0x0917, inq_ptr->version3); 10493 } else { 10494 /* SPI-4 ANSI INCITS.362:200x */ 10495 scsi_ulto2b(0x0B56, inq_ptr->version3); 10496 } 10497 10498 if (lun == NULL) { 10499 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10500 scsi_ulto2b(0x0320, inq_ptr->version4); 10501 } else { 10502 switch (lun->be_lun->lun_type) { 10503 case T_DIRECT: 10504 /* 10505 * SBC-2 (no version claimed) XXX should we claim a 10506 * version? 10507 */ 10508 scsi_ulto2b(0x0320, inq_ptr->version4); 10509 break; 10510 case T_PROCESSOR: 10511 default: 10512 break; 10513 } 10514 } 10515 10516 ctsio->scsi_status = SCSI_STATUS_OK; 10517 if (ctsio->kern_data_len > 0) { 10518 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10519 ctsio->be_move_done = ctl_config_move_done; 10520 ctl_datamove((union ctl_io *)ctsio); 10521 } else { 10522 ctsio->io_hdr.status = CTL_SUCCESS; 10523 ctl_done((union ctl_io *)ctsio); 10524 } 10525 10526 return (CTL_RETVAL_COMPLETE); 10527} 10528 10529int 10530ctl_inquiry(struct ctl_scsiio *ctsio) 10531{ 10532 struct scsi_inquiry *cdb; 10533 int retval; 10534 10535 cdb = (struct scsi_inquiry *)ctsio->cdb; 10536 10537 retval = 0; 10538 10539 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10540 10541 /* 10542 * Right now, we don't support the CmdDt inquiry information. 10543 * This would be nice to support in the future. When we do 10544 * support it, we should change this test so that it checks to make 10545 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10546 */ 10547#ifdef notyet 10548 if (((cdb->byte2 & SI_EVPD) 10549 && (cdb->byte2 & SI_CMDDT))) 10550#endif 10551 if (cdb->byte2 & SI_CMDDT) { 10552 /* 10553 * Point to the SI_CMDDT bit. We might change this 10554 * when we support SI_CMDDT, but since both bits would be 10555 * "wrong", this should probably just stay as-is then. 10556 */ 10557 ctl_set_invalid_field(ctsio, 10558 /*sks_valid*/ 1, 10559 /*command*/ 1, 10560 /*field*/ 1, 10561 /*bit_valid*/ 1, 10562 /*bit*/ 1); 10563 ctl_done((union ctl_io *)ctsio); 10564 return (CTL_RETVAL_COMPLETE); 10565 } 10566 if (cdb->byte2 & SI_EVPD) 10567 retval = ctl_inquiry_evpd(ctsio); 10568#ifdef notyet 10569 else if (cdb->byte2 & SI_CMDDT) 10570 retval = ctl_inquiry_cmddt(ctsio); 10571#endif 10572 else 10573 retval = ctl_inquiry_std(ctsio); 10574 10575 return (retval); 10576} 10577 10578/* 10579 * For known CDB types, parse the LBA and length. 10580 */ 10581static int 10582ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10583{ 10584 if (io->io_hdr.io_type != CTL_IO_SCSI) 10585 return (1); 10586 10587 switch (io->scsiio.cdb[0]) { 10588 case COMPARE_AND_WRITE: { 10589 struct scsi_compare_and_write *cdb; 10590 10591 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10592 10593 *lba = scsi_8btou64(cdb->addr); 10594 *len = cdb->length; 10595 break; 10596 } 10597 case READ_6: 10598 case WRITE_6: { 10599 struct scsi_rw_6 *cdb; 10600 10601 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10602 10603 *lba = scsi_3btoul(cdb->addr); 10604 /* only 5 bits are valid in the most significant address byte */ 10605 *lba &= 0x1fffff; 10606 *len = cdb->length; 10607 break; 10608 } 10609 case READ_10: 10610 case WRITE_10: { 10611 struct scsi_rw_10 *cdb; 10612 10613 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10614 10615 *lba = scsi_4btoul(cdb->addr); 10616 *len = scsi_2btoul(cdb->length); 10617 break; 10618 } 10619 case WRITE_VERIFY_10: { 10620 struct scsi_write_verify_10 *cdb; 10621 10622 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10623 10624 *lba = scsi_4btoul(cdb->addr); 10625 *len = scsi_2btoul(cdb->length); 10626 break; 10627 } 10628 case READ_12: 10629 case WRITE_12: { 10630 struct scsi_rw_12 *cdb; 10631 10632 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10633 10634 *lba = scsi_4btoul(cdb->addr); 10635 *len = scsi_4btoul(cdb->length); 10636 break; 10637 } 10638 case WRITE_VERIFY_12: { 10639 struct scsi_write_verify_12 *cdb; 10640 10641 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10642 10643 *lba = scsi_4btoul(cdb->addr); 10644 *len = scsi_4btoul(cdb->length); 10645 break; 10646 } 10647 case READ_16: 10648 case WRITE_16: { 10649 struct scsi_rw_16 *cdb; 10650 10651 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10652 10653 *lba = scsi_8btou64(cdb->addr); 10654 *len = scsi_4btoul(cdb->length); 10655 break; 10656 } 10657 case WRITE_VERIFY_16: { 10658 struct scsi_write_verify_16 *cdb; 10659 10660 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10661 10662 10663 *lba = scsi_8btou64(cdb->addr); 10664 *len = scsi_4btoul(cdb->length); 10665 break; 10666 } 10667 case WRITE_SAME_10: { 10668 struct scsi_write_same_10 *cdb; 10669 10670 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10671 10672 *lba = scsi_4btoul(cdb->addr); 10673 *len = scsi_2btoul(cdb->length); 10674 break; 10675 } 10676 case WRITE_SAME_16: { 10677 struct scsi_write_same_16 *cdb; 10678 10679 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10680 10681 *lba = scsi_8btou64(cdb->addr); 10682 *len = scsi_4btoul(cdb->length); 10683 break; 10684 } 10685 case VERIFY_10: { 10686 struct scsi_verify_10 *cdb; 10687 10688 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10689 10690 *lba = scsi_4btoul(cdb->addr); 10691 *len = scsi_2btoul(cdb->length); 10692 break; 10693 } 10694 case VERIFY_12: { 10695 struct scsi_verify_12 *cdb; 10696 10697 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10698 10699 *lba = scsi_4btoul(cdb->addr); 10700 *len = scsi_4btoul(cdb->length); 10701 break; 10702 } 10703 case VERIFY_16: { 10704 struct scsi_verify_16 *cdb; 10705 10706 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10707 10708 *lba = scsi_8btou64(cdb->addr); 10709 *len = scsi_4btoul(cdb->length); 10710 break; 10711 } 10712 default: 10713 return (1); 10714 break; /* NOTREACHED */ 10715 } 10716 10717 return (0); 10718} 10719 10720static ctl_action 10721ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10722{ 10723 uint64_t endlba1, endlba2; 10724 10725 endlba1 = lba1 + len1 - 1; 10726 endlba2 = lba2 + len2 - 1; 10727 10728 if ((endlba1 < lba2) 10729 || (endlba2 < lba1)) 10730 return (CTL_ACTION_PASS); 10731 else 10732 return (CTL_ACTION_BLOCK); 10733} 10734 10735static ctl_action 10736ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10737{ 10738 uint64_t lba1, lba2; 10739 uint32_t len1, len2; 10740 int retval; 10741 10742 retval = ctl_get_lba_len(io1, &lba1, &len1); 10743 if (retval != 0) 10744 return (CTL_ACTION_ERROR); 10745 10746 retval = ctl_get_lba_len(io2, &lba2, &len2); 10747 if (retval != 0) 10748 return (CTL_ACTION_ERROR); 10749 10750 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10751} 10752 10753static ctl_action 10754ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10755{ 10756 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10757 ctl_serialize_action *serialize_row; 10758 10759 /* 10760 * The initiator attempted multiple untagged commands at the same 10761 * time. Can't do that. 10762 */ 10763 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10764 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10765 && ((pending_io->io_hdr.nexus.targ_port == 10766 ooa_io->io_hdr.nexus.targ_port) 10767 && (pending_io->io_hdr.nexus.initid.id == 10768 ooa_io->io_hdr.nexus.initid.id)) 10769 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10770 return (CTL_ACTION_OVERLAP); 10771 10772 /* 10773 * The initiator attempted to send multiple tagged commands with 10774 * the same ID. (It's fine if different initiators have the same 10775 * tag ID.) 10776 * 10777 * Even if all of those conditions are true, we don't kill the I/O 10778 * if the command ahead of us has been aborted. We won't end up 10779 * sending it to the FETD, and it's perfectly legal to resend a 10780 * command with the same tag number as long as the previous 10781 * instance of this tag number has been aborted somehow. 10782 */ 10783 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10784 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10785 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10786 && ((pending_io->io_hdr.nexus.targ_port == 10787 ooa_io->io_hdr.nexus.targ_port) 10788 && (pending_io->io_hdr.nexus.initid.id == 10789 ooa_io->io_hdr.nexus.initid.id)) 10790 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10791 return (CTL_ACTION_OVERLAP_TAG); 10792 10793 /* 10794 * If we get a head of queue tag, SAM-3 says that we should 10795 * immediately execute it. 10796 * 10797 * What happens if this command would normally block for some other 10798 * reason? e.g. a request sense with a head of queue tag 10799 * immediately after a write. Normally that would block, but this 10800 * will result in its getting executed immediately... 10801 * 10802 * We currently return "pass" instead of "skip", so we'll end up 10803 * going through the rest of the queue to check for overlapped tags. 10804 * 10805 * XXX KDM check for other types of blockage first?? 10806 */ 10807 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10808 return (CTL_ACTION_PASS); 10809 10810 /* 10811 * Ordered tags have to block until all items ahead of them 10812 * have completed. If we get called with an ordered tag, we always 10813 * block, if something else is ahead of us in the queue. 10814 */ 10815 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10816 return (CTL_ACTION_BLOCK); 10817 10818 /* 10819 * Simple tags get blocked until all head of queue and ordered tags 10820 * ahead of them have completed. I'm lumping untagged commands in 10821 * with simple tags here. XXX KDM is that the right thing to do? 10822 */ 10823 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10824 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10825 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10826 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10827 return (CTL_ACTION_BLOCK); 10828 10829 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10830 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10831 10832 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10833 10834 switch (serialize_row[pending_entry->seridx]) { 10835 case CTL_SER_BLOCK: 10836 return (CTL_ACTION_BLOCK); 10837 break; /* NOTREACHED */ 10838 case CTL_SER_EXTENT: 10839 return (ctl_extent_check(pending_io, ooa_io)); 10840 break; /* NOTREACHED */ 10841 case CTL_SER_PASS: 10842 return (CTL_ACTION_PASS); 10843 break; /* NOTREACHED */ 10844 case CTL_SER_SKIP: 10845 return (CTL_ACTION_SKIP); 10846 break; 10847 default: 10848 panic("invalid serialization value %d", 10849 serialize_row[pending_entry->seridx]); 10850 break; /* NOTREACHED */ 10851 } 10852 10853 return (CTL_ACTION_ERROR); 10854} 10855 10856/* 10857 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10858 * Assumptions: 10859 * - pending_io is generally either incoming, or on the blocked queue 10860 * - starting I/O is the I/O we want to start the check with. 10861 */ 10862static ctl_action 10863ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10864 union ctl_io *starting_io) 10865{ 10866 union ctl_io *ooa_io; 10867 ctl_action action; 10868 10869 mtx_assert(&lun->lun_lock, MA_OWNED); 10870 10871 /* 10872 * Run back along the OOA queue, starting with the current 10873 * blocked I/O and going through every I/O before it on the 10874 * queue. If starting_io is NULL, we'll just end up returning 10875 * CTL_ACTION_PASS. 10876 */ 10877 for (ooa_io = starting_io; ooa_io != NULL; 10878 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10879 ooa_links)){ 10880 10881 /* 10882 * This routine just checks to see whether 10883 * cur_blocked is blocked by ooa_io, which is ahead 10884 * of it in the queue. It doesn't queue/dequeue 10885 * cur_blocked. 10886 */ 10887 action = ctl_check_for_blockage(pending_io, ooa_io); 10888 switch (action) { 10889 case CTL_ACTION_BLOCK: 10890 case CTL_ACTION_OVERLAP: 10891 case CTL_ACTION_OVERLAP_TAG: 10892 case CTL_ACTION_SKIP: 10893 case CTL_ACTION_ERROR: 10894 return (action); 10895 break; /* NOTREACHED */ 10896 case CTL_ACTION_PASS: 10897 break; 10898 default: 10899 panic("invalid action %d", action); 10900 break; /* NOTREACHED */ 10901 } 10902 } 10903 10904 return (CTL_ACTION_PASS); 10905} 10906 10907/* 10908 * Assumptions: 10909 * - An I/O has just completed, and has been removed from the per-LUN OOA 10910 * queue, so some items on the blocked queue may now be unblocked. 10911 */ 10912static int 10913ctl_check_blocked(struct ctl_lun *lun) 10914{ 10915 union ctl_io *cur_blocked, *next_blocked; 10916 10917 mtx_assert(&lun->lun_lock, MA_OWNED); 10918 10919 /* 10920 * Run forward from the head of the blocked queue, checking each 10921 * entry against the I/Os prior to it on the OOA queue to see if 10922 * there is still any blockage. 10923 * 10924 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10925 * with our removing a variable on it while it is traversing the 10926 * list. 10927 */ 10928 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10929 cur_blocked != NULL; cur_blocked = next_blocked) { 10930 union ctl_io *prev_ooa; 10931 ctl_action action; 10932 10933 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10934 blocked_links); 10935 10936 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10937 ctl_ooaq, ooa_links); 10938 10939 /* 10940 * If cur_blocked happens to be the first item in the OOA 10941 * queue now, prev_ooa will be NULL, and the action 10942 * returned will just be CTL_ACTION_PASS. 10943 */ 10944 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10945 10946 switch (action) { 10947 case CTL_ACTION_BLOCK: 10948 /* Nothing to do here, still blocked */ 10949 break; 10950 case CTL_ACTION_OVERLAP: 10951 case CTL_ACTION_OVERLAP_TAG: 10952 /* 10953 * This shouldn't happen! In theory we've already 10954 * checked this command for overlap... 10955 */ 10956 break; 10957 case CTL_ACTION_PASS: 10958 case CTL_ACTION_SKIP: { 10959 struct ctl_softc *softc; 10960 const struct ctl_cmd_entry *entry; 10961 uint32_t initidx; 10962 int isc_retval; 10963 10964 /* 10965 * The skip case shouldn't happen, this transaction 10966 * should have never made it onto the blocked queue. 10967 */ 10968 /* 10969 * This I/O is no longer blocked, we can remove it 10970 * from the blocked queue. Since this is a TAILQ 10971 * (doubly linked list), we can do O(1) removals 10972 * from any place on the list. 10973 */ 10974 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10975 blocked_links); 10976 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10977 10978 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10979 /* 10980 * Need to send IO back to original side to 10981 * run 10982 */ 10983 union ctl_ha_msg msg_info; 10984 10985 msg_info.hdr.original_sc = 10986 cur_blocked->io_hdr.original_sc; 10987 msg_info.hdr.serializing_sc = cur_blocked; 10988 msg_info.hdr.msg_type = CTL_MSG_R2R; 10989 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10990 &msg_info, sizeof(msg_info), 0)) > 10991 CTL_HA_STATUS_SUCCESS) { 10992 printf("CTL:Check Blocked error from " 10993 "ctl_ha_msg_send %d\n", 10994 isc_retval); 10995 } 10996 break; 10997 } 10998 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10999 softc = control_softc; 11000 11001 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11002 11003 /* 11004 * Check this I/O for LUN state changes that may 11005 * have happened while this command was blocked. 11006 * The LUN state may have been changed by a command 11007 * ahead of us in the queue, so we need to re-check 11008 * for any states that can be caused by SCSI 11009 * commands. 11010 */ 11011 if (ctl_scsiio_lun_check(softc, lun, entry, 11012 &cur_blocked->scsiio) == 0) { 11013 cur_blocked->io_hdr.flags |= 11014 CTL_FLAG_IS_WAS_ON_RTR; 11015 ctl_enqueue_rtr(cur_blocked); 11016 } else 11017 ctl_done(cur_blocked); 11018 break; 11019 } 11020 default: 11021 /* 11022 * This probably shouldn't happen -- we shouldn't 11023 * get CTL_ACTION_ERROR, or anything else. 11024 */ 11025 break; 11026 } 11027 } 11028 11029 return (CTL_RETVAL_COMPLETE); 11030} 11031 11032/* 11033 * This routine (with one exception) checks LUN flags that can be set by 11034 * commands ahead of us in the OOA queue. These flags have to be checked 11035 * when a command initially comes in, and when we pull a command off the 11036 * blocked queue and are preparing to execute it. The reason we have to 11037 * check these flags for commands on the blocked queue is that the LUN 11038 * state may have been changed by a command ahead of us while we're on the 11039 * blocked queue. 11040 * 11041 * Ordering is somewhat important with these checks, so please pay 11042 * careful attention to the placement of any new checks. 11043 */ 11044static int 11045ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11046 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11047{ 11048 int retval; 11049 11050 retval = 0; 11051 11052 mtx_assert(&lun->lun_lock, MA_OWNED); 11053 11054 /* 11055 * If this shelf is a secondary shelf controller, we have to reject 11056 * any media access commands. 11057 */ 11058#if 0 11059 /* No longer needed for HA */ 11060 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11061 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11062 ctl_set_lun_standby(ctsio); 11063 retval = 1; 11064 goto bailout; 11065 } 11066#endif 11067 11068 /* 11069 * Check for a reservation conflict. If this command isn't allowed 11070 * even on reserved LUNs, and if this initiator isn't the one who 11071 * reserved us, reject the command with a reservation conflict. 11072 */ 11073 if ((lun->flags & CTL_LUN_RESERVED) 11074 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11075 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11076 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11077 || (ctsio->io_hdr.nexus.targ_target.id != 11078 lun->rsv_nexus.targ_target.id)) { 11079 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11080 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11081 retval = 1; 11082 goto bailout; 11083 } 11084 } 11085 11086 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11087 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11088 uint32_t residx; 11089 11090 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11091 /* 11092 * if we aren't registered or it's a res holder type 11093 * reservation and this isn't the res holder then set a 11094 * conflict. 11095 * NOTE: Commands which might be allowed on write exclusive 11096 * type reservations are checked in the particular command 11097 * for a conflict. Read and SSU are the only ones. 11098 */ 11099 if (!lun->per_res[residx].registered 11100 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11101 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11102 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11103 retval = 1; 11104 goto bailout; 11105 } 11106 11107 } 11108 11109 if ((lun->flags & CTL_LUN_OFFLINE) 11110 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11111 ctl_set_lun_not_ready(ctsio); 11112 retval = 1; 11113 goto bailout; 11114 } 11115 11116 /* 11117 * If the LUN is stopped, see if this particular command is allowed 11118 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11119 */ 11120 if ((lun->flags & CTL_LUN_STOPPED) 11121 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11122 /* "Logical unit not ready, initializing cmd. required" */ 11123 ctl_set_lun_stopped(ctsio); 11124 retval = 1; 11125 goto bailout; 11126 } 11127 11128 if ((lun->flags & CTL_LUN_INOPERABLE) 11129 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11130 /* "Medium format corrupted" */ 11131 ctl_set_medium_format_corrupted(ctsio); 11132 retval = 1; 11133 goto bailout; 11134 } 11135 11136bailout: 11137 return (retval); 11138 11139} 11140 11141static void 11142ctl_failover_io(union ctl_io *io, int have_lock) 11143{ 11144 ctl_set_busy(&io->scsiio); 11145 ctl_done(io); 11146} 11147 11148static void 11149ctl_failover(void) 11150{ 11151 struct ctl_lun *lun; 11152 struct ctl_softc *ctl_softc; 11153 union ctl_io *next_io, *pending_io; 11154 union ctl_io *io; 11155 int lun_idx; 11156 int i; 11157 11158 ctl_softc = control_softc; 11159 11160 mtx_lock(&ctl_softc->ctl_lock); 11161 /* 11162 * Remove any cmds from the other SC from the rtr queue. These 11163 * will obviously only be for LUNs for which we're the primary. 11164 * We can't send status or get/send data for these commands. 11165 * Since they haven't been executed yet, we can just remove them. 11166 * We'll either abort them or delete them below, depending on 11167 * which HA mode we're in. 11168 */ 11169#ifdef notyet 11170 mtx_lock(&ctl_softc->queue_lock); 11171 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11172 io != NULL; io = next_io) { 11173 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11174 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11175 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11176 ctl_io_hdr, links); 11177 } 11178 mtx_unlock(&ctl_softc->queue_lock); 11179#endif 11180 11181 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11182 lun = ctl_softc->ctl_luns[lun_idx]; 11183 if (lun==NULL) 11184 continue; 11185 11186 /* 11187 * Processor LUNs are primary on both sides. 11188 * XXX will this always be true? 11189 */ 11190 if (lun->be_lun->lun_type == T_PROCESSOR) 11191 continue; 11192 11193 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11194 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11195 printf("FAILOVER: primary lun %d\n", lun_idx); 11196 /* 11197 * Remove all commands from the other SC. First from the 11198 * blocked queue then from the ooa queue. Once we have 11199 * removed them. Call ctl_check_blocked to see if there 11200 * is anything that can run. 11201 */ 11202 for (io = (union ctl_io *)TAILQ_FIRST( 11203 &lun->blocked_queue); io != NULL; io = next_io) { 11204 11205 next_io = (union ctl_io *)TAILQ_NEXT( 11206 &io->io_hdr, blocked_links); 11207 11208 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11209 TAILQ_REMOVE(&lun->blocked_queue, 11210 &io->io_hdr,blocked_links); 11211 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11212 TAILQ_REMOVE(&lun->ooa_queue, 11213 &io->io_hdr, ooa_links); 11214 11215 ctl_free_io(io); 11216 } 11217 } 11218 11219 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11220 io != NULL; io = next_io) { 11221 11222 next_io = (union ctl_io *)TAILQ_NEXT( 11223 &io->io_hdr, ooa_links); 11224 11225 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11226 11227 TAILQ_REMOVE(&lun->ooa_queue, 11228 &io->io_hdr, 11229 ooa_links); 11230 11231 ctl_free_io(io); 11232 } 11233 } 11234 ctl_check_blocked(lun); 11235 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11236 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11237 11238 printf("FAILOVER: primary lun %d\n", lun_idx); 11239 /* 11240 * Abort all commands from the other SC. We can't 11241 * send status back for them now. These should get 11242 * cleaned up when they are completed or come out 11243 * for a datamove operation. 11244 */ 11245 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11246 io != NULL; io = next_io) { 11247 next_io = (union ctl_io *)TAILQ_NEXT( 11248 &io->io_hdr, ooa_links); 11249 11250 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11251 io->io_hdr.flags |= CTL_FLAG_ABORT; 11252 } 11253 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11254 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11255 11256 printf("FAILOVER: secondary lun %d\n", lun_idx); 11257 11258 lun->flags |= CTL_LUN_PRIMARY_SC; 11259 11260 /* 11261 * We send all I/O that was sent to this controller 11262 * and redirected to the other side back with 11263 * busy status, and have the initiator retry it. 11264 * Figuring out how much data has been transferred, 11265 * etc. and picking up where we left off would be 11266 * very tricky. 11267 * 11268 * XXX KDM need to remove I/O from the blocked 11269 * queue as well! 11270 */ 11271 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11272 &lun->ooa_queue); pending_io != NULL; 11273 pending_io = next_io) { 11274 11275 next_io = (union ctl_io *)TAILQ_NEXT( 11276 &pending_io->io_hdr, ooa_links); 11277 11278 pending_io->io_hdr.flags &= 11279 ~CTL_FLAG_SENT_2OTHER_SC; 11280 11281 if (pending_io->io_hdr.flags & 11282 CTL_FLAG_IO_ACTIVE) { 11283 pending_io->io_hdr.flags |= 11284 CTL_FLAG_FAILOVER; 11285 } else { 11286 ctl_set_busy(&pending_io->scsiio); 11287 ctl_done(pending_io); 11288 } 11289 } 11290 11291 /* 11292 * Build Unit Attention 11293 */ 11294 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11295 lun->pending_sense[i].ua_pending |= 11296 CTL_UA_ASYM_ACC_CHANGE; 11297 } 11298 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11299 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11300 printf("FAILOVER: secondary lun %d\n", lun_idx); 11301 /* 11302 * if the first io on the OOA is not on the RtR queue 11303 * add it. 11304 */ 11305 lun->flags |= CTL_LUN_PRIMARY_SC; 11306 11307 pending_io = (union ctl_io *)TAILQ_FIRST( 11308 &lun->ooa_queue); 11309 if (pending_io==NULL) { 11310 printf("Nothing on OOA queue\n"); 11311 continue; 11312 } 11313 11314 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11315 if ((pending_io->io_hdr.flags & 11316 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11317 pending_io->io_hdr.flags |= 11318 CTL_FLAG_IS_WAS_ON_RTR; 11319 ctl_enqueue_rtr(pending_io); 11320 } 11321#if 0 11322 else 11323 { 11324 printf("Tag 0x%04x is running\n", 11325 pending_io->scsiio.tag_num); 11326 } 11327#endif 11328 11329 next_io = (union ctl_io *)TAILQ_NEXT( 11330 &pending_io->io_hdr, ooa_links); 11331 for (pending_io=next_io; pending_io != NULL; 11332 pending_io = next_io) { 11333 pending_io->io_hdr.flags &= 11334 ~CTL_FLAG_SENT_2OTHER_SC; 11335 next_io = (union ctl_io *)TAILQ_NEXT( 11336 &pending_io->io_hdr, ooa_links); 11337 if (pending_io->io_hdr.flags & 11338 CTL_FLAG_IS_WAS_ON_RTR) { 11339#if 0 11340 printf("Tag 0x%04x is running\n", 11341 pending_io->scsiio.tag_num); 11342#endif 11343 continue; 11344 } 11345 11346 switch (ctl_check_ooa(lun, pending_io, 11347 (union ctl_io *)TAILQ_PREV( 11348 &pending_io->io_hdr, ctl_ooaq, 11349 ooa_links))) { 11350 11351 case CTL_ACTION_BLOCK: 11352 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11353 &pending_io->io_hdr, 11354 blocked_links); 11355 pending_io->io_hdr.flags |= 11356 CTL_FLAG_BLOCKED; 11357 break; 11358 case CTL_ACTION_PASS: 11359 case CTL_ACTION_SKIP: 11360 pending_io->io_hdr.flags |= 11361 CTL_FLAG_IS_WAS_ON_RTR; 11362 ctl_enqueue_rtr(pending_io); 11363 break; 11364 case CTL_ACTION_OVERLAP: 11365 ctl_set_overlapped_cmd( 11366 (struct ctl_scsiio *)pending_io); 11367 ctl_done(pending_io); 11368 break; 11369 case CTL_ACTION_OVERLAP_TAG: 11370 ctl_set_overlapped_tag( 11371 (struct ctl_scsiio *)pending_io, 11372 pending_io->scsiio.tag_num & 0xff); 11373 ctl_done(pending_io); 11374 break; 11375 case CTL_ACTION_ERROR: 11376 default: 11377 ctl_set_internal_failure( 11378 (struct ctl_scsiio *)pending_io, 11379 0, // sks_valid 11380 0); //retry count 11381 ctl_done(pending_io); 11382 break; 11383 } 11384 } 11385 11386 /* 11387 * Build Unit Attention 11388 */ 11389 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11390 lun->pending_sense[i].ua_pending |= 11391 CTL_UA_ASYM_ACC_CHANGE; 11392 } 11393 } else { 11394 panic("Unhandled HA mode failover, LUN flags = %#x, " 11395 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11396 } 11397 } 11398 ctl_pause_rtr = 0; 11399 mtx_unlock(&ctl_softc->ctl_lock); 11400} 11401 11402static int 11403ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11404{ 11405 struct ctl_lun *lun; 11406 const struct ctl_cmd_entry *entry; 11407 uint32_t initidx, targ_lun; 11408 int retval; 11409 11410 retval = 0; 11411 11412 lun = NULL; 11413 11414 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11415 if ((targ_lun < CTL_MAX_LUNS) 11416 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11417 lun = ctl_softc->ctl_luns[targ_lun]; 11418 /* 11419 * If the LUN is invalid, pretend that it doesn't exist. 11420 * It will go away as soon as all pending I/O has been 11421 * completed. 11422 */ 11423 if (lun->flags & CTL_LUN_DISABLED) { 11424 lun = NULL; 11425 } else { 11426 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11427 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11428 lun->be_lun; 11429 if (lun->be_lun->lun_type == T_PROCESSOR) { 11430 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11431 } 11432 11433 /* 11434 * Every I/O goes into the OOA queue for a 11435 * particular LUN, and stays there until completion. 11436 */ 11437 mtx_lock(&lun->lun_lock); 11438 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11439 ooa_links); 11440 } 11441 } else { 11442 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11443 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11444 } 11445 11446 /* Get command entry and return error if it is unsuppotyed. */ 11447 entry = ctl_validate_command(ctsio); 11448 if (entry == NULL) { 11449 if (lun) 11450 mtx_unlock(&lun->lun_lock); 11451 return (retval); 11452 } 11453 11454 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11455 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11456 11457 /* 11458 * Check to see whether we can send this command to LUNs that don't 11459 * exist. This should pretty much only be the case for inquiry 11460 * and request sense. Further checks, below, really require having 11461 * a LUN, so we can't really check the command anymore. Just put 11462 * it on the rtr queue. 11463 */ 11464 if (lun == NULL) { 11465 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11466 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11467 ctl_enqueue_rtr((union ctl_io *)ctsio); 11468 return (retval); 11469 } 11470 11471 ctl_set_unsupported_lun(ctsio); 11472 ctl_done((union ctl_io *)ctsio); 11473 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11474 return (retval); 11475 } else { 11476 /* 11477 * Make sure we support this particular command on this LUN. 11478 * e.g., we don't support writes to the control LUN. 11479 */ 11480 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11481 mtx_unlock(&lun->lun_lock); 11482 ctl_set_invalid_opcode(ctsio); 11483 ctl_done((union ctl_io *)ctsio); 11484 return (retval); 11485 } 11486 } 11487 11488 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11489 11490 /* 11491 * If we've got a request sense, it'll clear the contingent 11492 * allegiance condition. Otherwise, if we have a CA condition for 11493 * this initiator, clear it, because it sent down a command other 11494 * than request sense. 11495 */ 11496 if ((ctsio->cdb[0] != REQUEST_SENSE) 11497 && (ctl_is_set(lun->have_ca, initidx))) 11498 ctl_clear_mask(lun->have_ca, initidx); 11499 11500 /* 11501 * If the command has this flag set, it handles its own unit 11502 * attention reporting, we shouldn't do anything. Otherwise we 11503 * check for any pending unit attentions, and send them back to the 11504 * initiator. We only do this when a command initially comes in, 11505 * not when we pull it off the blocked queue. 11506 * 11507 * According to SAM-3, section 5.3.2, the order that things get 11508 * presented back to the host is basically unit attentions caused 11509 * by some sort of reset event, busy status, reservation conflicts 11510 * or task set full, and finally any other status. 11511 * 11512 * One issue here is that some of the unit attentions we report 11513 * don't fall into the "reset" category (e.g. "reported luns data 11514 * has changed"). So reporting it here, before the reservation 11515 * check, may be technically wrong. I guess the only thing to do 11516 * would be to check for and report the reset events here, and then 11517 * check for the other unit attention types after we check for a 11518 * reservation conflict. 11519 * 11520 * XXX KDM need to fix this 11521 */ 11522 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11523 ctl_ua_type ua_type; 11524 11525 ua_type = lun->pending_sense[initidx].ua_pending; 11526 if (ua_type != CTL_UA_NONE) { 11527 scsi_sense_data_type sense_format; 11528 11529 if (lun != NULL) 11530 sense_format = (lun->flags & 11531 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11532 SSD_TYPE_FIXED; 11533 else 11534 sense_format = SSD_TYPE_FIXED; 11535 11536 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11537 sense_format); 11538 if (ua_type != CTL_UA_NONE) { 11539 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11540 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11541 CTL_AUTOSENSE; 11542 ctsio->sense_len = SSD_FULL_SIZE; 11543 lun->pending_sense[initidx].ua_pending &= 11544 ~ua_type; 11545 mtx_unlock(&lun->lun_lock); 11546 ctl_done((union ctl_io *)ctsio); 11547 return (retval); 11548 } 11549 } 11550 } 11551 11552 11553 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11554 mtx_unlock(&lun->lun_lock); 11555 ctl_done((union ctl_io *)ctsio); 11556 return (retval); 11557 } 11558 11559 /* 11560 * XXX CHD this is where we want to send IO to other side if 11561 * this LUN is secondary on this SC. We will need to make a copy 11562 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11563 * the copy we send as FROM_OTHER. 11564 * We also need to stuff the address of the original IO so we can 11565 * find it easily. Something similar will need be done on the other 11566 * side so when we are done we can find the copy. 11567 */ 11568 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11569 union ctl_ha_msg msg_info; 11570 int isc_retval; 11571 11572 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11573 11574 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11575 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11576#if 0 11577 printf("1. ctsio %p\n", ctsio); 11578#endif 11579 msg_info.hdr.serializing_sc = NULL; 11580 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11581 msg_info.scsi.tag_num = ctsio->tag_num; 11582 msg_info.scsi.tag_type = ctsio->tag_type; 11583 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11584 11585 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11586 11587 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11588 (void *)&msg_info, sizeof(msg_info), 0)) > 11589 CTL_HA_STATUS_SUCCESS) { 11590 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11591 isc_retval); 11592 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11593 } else { 11594#if 0 11595 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11596#endif 11597 } 11598 11599 /* 11600 * XXX KDM this I/O is off the incoming queue, but hasn't 11601 * been inserted on any other queue. We may need to come 11602 * up with a holding queue while we wait for serialization 11603 * so that we have an idea of what we're waiting for from 11604 * the other side. 11605 */ 11606 mtx_unlock(&lun->lun_lock); 11607 return (retval); 11608 } 11609 11610 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11611 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11612 ctl_ooaq, ooa_links))) { 11613 case CTL_ACTION_BLOCK: 11614 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11615 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11616 blocked_links); 11617 mtx_unlock(&lun->lun_lock); 11618 return (retval); 11619 case CTL_ACTION_PASS: 11620 case CTL_ACTION_SKIP: 11621 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11622 mtx_unlock(&lun->lun_lock); 11623 ctl_enqueue_rtr((union ctl_io *)ctsio); 11624 break; 11625 case CTL_ACTION_OVERLAP: 11626 mtx_unlock(&lun->lun_lock); 11627 ctl_set_overlapped_cmd(ctsio); 11628 ctl_done((union ctl_io *)ctsio); 11629 break; 11630 case CTL_ACTION_OVERLAP_TAG: 11631 mtx_unlock(&lun->lun_lock); 11632 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11633 ctl_done((union ctl_io *)ctsio); 11634 break; 11635 case CTL_ACTION_ERROR: 11636 default: 11637 mtx_unlock(&lun->lun_lock); 11638 ctl_set_internal_failure(ctsio, 11639 /*sks_valid*/ 0, 11640 /*retry_count*/ 0); 11641 ctl_done((union ctl_io *)ctsio); 11642 break; 11643 } 11644 return (retval); 11645} 11646 11647const struct ctl_cmd_entry * 11648ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11649{ 11650 const struct ctl_cmd_entry *entry; 11651 int service_action; 11652 11653 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11654 if (entry->flags & CTL_CMD_FLAG_SA5) { 11655 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11656 entry = &((const struct ctl_cmd_entry *) 11657 entry->execute)[service_action]; 11658 } 11659 return (entry); 11660} 11661 11662const struct ctl_cmd_entry * 11663ctl_validate_command(struct ctl_scsiio *ctsio) 11664{ 11665 const struct ctl_cmd_entry *entry; 11666 int i; 11667 uint8_t diff; 11668 11669 entry = ctl_get_cmd_entry(ctsio); 11670 if (entry->execute == NULL) { 11671 ctl_set_invalid_opcode(ctsio); 11672 ctl_done((union ctl_io *)ctsio); 11673 return (NULL); 11674 } 11675 KASSERT(entry->length > 0, 11676 ("Not defined length for command 0x%02x/0x%02x", 11677 ctsio->cdb[0], ctsio->cdb[1])); 11678 for (i = 1; i < entry->length; i++) { 11679 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11680 if (diff == 0) 11681 continue; 11682 ctl_set_invalid_field(ctsio, 11683 /*sks_valid*/ 1, 11684 /*command*/ 1, 11685 /*field*/ i, 11686 /*bit_valid*/ 1, 11687 /*bit*/ fls(diff) - 1); 11688 ctl_done((union ctl_io *)ctsio); 11689 return (NULL); 11690 } 11691 return (entry); 11692} 11693 11694static int 11695ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11696{ 11697 11698 switch (lun_type) { 11699 case T_PROCESSOR: 11700 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11701 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11702 return (0); 11703 break; 11704 case T_DIRECT: 11705 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11706 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11707 return (0); 11708 break; 11709 default: 11710 return (0); 11711 } 11712 return (1); 11713} 11714 11715static int 11716ctl_scsiio(struct ctl_scsiio *ctsio) 11717{ 11718 int retval; 11719 const struct ctl_cmd_entry *entry; 11720 11721 retval = CTL_RETVAL_COMPLETE; 11722 11723 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11724 11725 entry = ctl_get_cmd_entry(ctsio); 11726 11727 /* 11728 * If this I/O has been aborted, just send it straight to 11729 * ctl_done() without executing it. 11730 */ 11731 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11732 ctl_done((union ctl_io *)ctsio); 11733 goto bailout; 11734 } 11735 11736 /* 11737 * All the checks should have been handled by ctl_scsiio_precheck(). 11738 * We should be clear now to just execute the I/O. 11739 */ 11740 retval = entry->execute(ctsio); 11741 11742bailout: 11743 return (retval); 11744} 11745 11746/* 11747 * Since we only implement one target right now, a bus reset simply resets 11748 * our single target. 11749 */ 11750static int 11751ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11752{ 11753 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11754} 11755 11756static int 11757ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11758 ctl_ua_type ua_type) 11759{ 11760 struct ctl_lun *lun; 11761 int retval; 11762 11763 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11764 union ctl_ha_msg msg_info; 11765 11766 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11767 msg_info.hdr.nexus = io->io_hdr.nexus; 11768 if (ua_type==CTL_UA_TARG_RESET) 11769 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11770 else 11771 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11772 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11773 msg_info.hdr.original_sc = NULL; 11774 msg_info.hdr.serializing_sc = NULL; 11775 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11776 (void *)&msg_info, sizeof(msg_info), 0)) { 11777 } 11778 } 11779 retval = 0; 11780 11781 mtx_lock(&ctl_softc->ctl_lock); 11782 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11783 retval += ctl_lun_reset(lun, io, ua_type); 11784 mtx_unlock(&ctl_softc->ctl_lock); 11785 11786 return (retval); 11787} 11788 11789/* 11790 * The LUN should always be set. The I/O is optional, and is used to 11791 * distinguish between I/Os sent by this initiator, and by other 11792 * initiators. We set unit attention for initiators other than this one. 11793 * SAM-3 is vague on this point. It does say that a unit attention should 11794 * be established for other initiators when a LUN is reset (see section 11795 * 5.7.3), but it doesn't specifically say that the unit attention should 11796 * be established for this particular initiator when a LUN is reset. Here 11797 * is the relevant text, from SAM-3 rev 8: 11798 * 11799 * 5.7.2 When a SCSI initiator port aborts its own tasks 11800 * 11801 * When a SCSI initiator port causes its own task(s) to be aborted, no 11802 * notification that the task(s) have been aborted shall be returned to 11803 * the SCSI initiator port other than the completion response for the 11804 * command or task management function action that caused the task(s) to 11805 * be aborted and notification(s) associated with related effects of the 11806 * action (e.g., a reset unit attention condition). 11807 * 11808 * XXX KDM for now, we're setting unit attention for all initiators. 11809 */ 11810static int 11811ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11812{ 11813 union ctl_io *xio; 11814#if 0 11815 uint32_t initindex; 11816#endif 11817 int i; 11818 11819 mtx_lock(&lun->lun_lock); 11820 /* 11821 * Run through the OOA queue and abort each I/O. 11822 */ 11823#if 0 11824 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11825#endif 11826 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11827 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11828 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11829 } 11830 11831 /* 11832 * This version sets unit attention for every 11833 */ 11834#if 0 11835 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11836 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11837 if (initindex == i) 11838 continue; 11839 lun->pending_sense[i].ua_pending |= ua_type; 11840 } 11841#endif 11842 11843 /* 11844 * A reset (any kind, really) clears reservations established with 11845 * RESERVE/RELEASE. It does not clear reservations established 11846 * with PERSISTENT RESERVE OUT, but we don't support that at the 11847 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11848 * reservations made with the RESERVE/RELEASE commands, because 11849 * those commands are obsolete in SPC-3. 11850 */ 11851 lun->flags &= ~CTL_LUN_RESERVED; 11852 11853 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11854 ctl_clear_mask(lun->have_ca, i); 11855 lun->pending_sense[i].ua_pending |= ua_type; 11856 } 11857 mtx_unlock(&lun->lun_lock); 11858 11859 return (0); 11860} 11861 11862static int 11863ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11864 int other_sc) 11865{ 11866 union ctl_io *xio; 11867 int found; 11868 11869 mtx_assert(&lun->lun_lock, MA_OWNED); 11870 11871 /* 11872 * Run through the OOA queue and attempt to find the given I/O. 11873 * The target port, initiator ID, tag type and tag number have to 11874 * match the values that we got from the initiator. If we have an 11875 * untagged command to abort, simply abort the first untagged command 11876 * we come to. We only allow one untagged command at a time of course. 11877 */ 11878 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11879 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11880 11881 if ((targ_port == UINT32_MAX || 11882 targ_port == xio->io_hdr.nexus.targ_port) && 11883 (init_id == UINT32_MAX || 11884 init_id == xio->io_hdr.nexus.initid.id)) { 11885 if (targ_port != xio->io_hdr.nexus.targ_port || 11886 init_id != xio->io_hdr.nexus.initid.id) 11887 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11888 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11889 found = 1; 11890 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11891 union ctl_ha_msg msg_info; 11892 11893 msg_info.hdr.nexus = xio->io_hdr.nexus; 11894 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11895 msg_info.task.tag_num = xio->scsiio.tag_num; 11896 msg_info.task.tag_type = xio->scsiio.tag_type; 11897 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11898 msg_info.hdr.original_sc = NULL; 11899 msg_info.hdr.serializing_sc = NULL; 11900 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11901 (void *)&msg_info, sizeof(msg_info), 0); 11902 } 11903 } 11904 } 11905 return (found); 11906} 11907 11908static int 11909ctl_abort_task_set(union ctl_io *io) 11910{ 11911 struct ctl_softc *softc = control_softc; 11912 struct ctl_lun *lun; 11913 uint32_t targ_lun; 11914 11915 /* 11916 * Look up the LUN. 11917 */ 11918 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11919 mtx_lock(&softc->ctl_lock); 11920 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11921 lun = softc->ctl_luns[targ_lun]; 11922 else { 11923 mtx_unlock(&softc->ctl_lock); 11924 return (1); 11925 } 11926 11927 mtx_lock(&lun->lun_lock); 11928 mtx_unlock(&softc->ctl_lock); 11929 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11930 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11931 io->io_hdr.nexus.initid.id, 11932 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11933 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11934 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11935 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11936 } 11937 mtx_unlock(&lun->lun_lock); 11938 return (0); 11939} 11940 11941static int 11942ctl_i_t_nexus_reset(union ctl_io *io) 11943{ 11944 struct ctl_softc *softc = control_softc; 11945 struct ctl_lun *lun; 11946 uint32_t initindex; 11947 11948 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11949 mtx_lock(&softc->ctl_lock); 11950 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11951 mtx_lock(&lun->lun_lock); 11952 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11953 io->io_hdr.nexus.initid.id, 11954 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11955 ctl_clear_mask(lun->have_ca, initindex); 11956 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS; 11957 mtx_unlock(&lun->lun_lock); 11958 } 11959 mtx_unlock(&softc->ctl_lock); 11960 return (0); 11961} 11962 11963static int 11964ctl_abort_task(union ctl_io *io) 11965{ 11966 union ctl_io *xio; 11967 struct ctl_lun *lun; 11968 struct ctl_softc *ctl_softc; 11969#if 0 11970 struct sbuf sb; 11971 char printbuf[128]; 11972#endif 11973 int found; 11974 uint32_t targ_lun; 11975 11976 ctl_softc = control_softc; 11977 found = 0; 11978 11979 /* 11980 * Look up the LUN. 11981 */ 11982 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11983 mtx_lock(&ctl_softc->ctl_lock); 11984 if ((targ_lun < CTL_MAX_LUNS) 11985 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11986 lun = ctl_softc->ctl_luns[targ_lun]; 11987 else { 11988 mtx_unlock(&ctl_softc->ctl_lock); 11989 return (1); 11990 } 11991 11992#if 0 11993 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11994 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11995#endif 11996 11997 mtx_lock(&lun->lun_lock); 11998 mtx_unlock(&ctl_softc->ctl_lock); 11999 /* 12000 * Run through the OOA queue and attempt to find the given I/O. 12001 * The target port, initiator ID, tag type and tag number have to 12002 * match the values that we got from the initiator. If we have an 12003 * untagged command to abort, simply abort the first untagged command 12004 * we come to. We only allow one untagged command at a time of course. 12005 */ 12006#if 0 12007 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12008#endif 12009 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12010 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12011#if 0 12012 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12013 12014 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12015 lun->lun, xio->scsiio.tag_num, 12016 xio->scsiio.tag_type, 12017 (xio->io_hdr.blocked_links.tqe_prev 12018 == NULL) ? "" : " BLOCKED", 12019 (xio->io_hdr.flags & 12020 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12021 (xio->io_hdr.flags & 12022 CTL_FLAG_ABORT) ? " ABORT" : "", 12023 (xio->io_hdr.flags & 12024 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12025 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12026 sbuf_finish(&sb); 12027 printf("%s\n", sbuf_data(&sb)); 12028#endif 12029 12030 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12031 && (xio->io_hdr.nexus.initid.id == 12032 io->io_hdr.nexus.initid.id)) { 12033 /* 12034 * If the abort says that the task is untagged, the 12035 * task in the queue must be untagged. Otherwise, 12036 * we just check to see whether the tag numbers 12037 * match. This is because the QLogic firmware 12038 * doesn't pass back the tag type in an abort 12039 * request. 12040 */ 12041#if 0 12042 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12043 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12044 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12045#endif 12046 /* 12047 * XXX KDM we've got problems with FC, because it 12048 * doesn't send down a tag type with aborts. So we 12049 * can only really go by the tag number... 12050 * This may cause problems with parallel SCSI. 12051 * Need to figure that out!! 12052 */ 12053 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12054 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12055 found = 1; 12056 if ((io->io_hdr.flags & 12057 CTL_FLAG_FROM_OTHER_SC) == 0 && 12058 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12059 union ctl_ha_msg msg_info; 12060 12061 io->io_hdr.flags |= 12062 CTL_FLAG_SENT_2OTHER_SC; 12063 msg_info.hdr.nexus = io->io_hdr.nexus; 12064 msg_info.task.task_action = 12065 CTL_TASK_ABORT_TASK; 12066 msg_info.task.tag_num = 12067 io->taskio.tag_num; 12068 msg_info.task.tag_type = 12069 io->taskio.tag_type; 12070 msg_info.hdr.msg_type = 12071 CTL_MSG_MANAGE_TASKS; 12072 msg_info.hdr.original_sc = NULL; 12073 msg_info.hdr.serializing_sc = NULL; 12074#if 0 12075 printf("Sent Abort to other side\n"); 12076#endif 12077 if (CTL_HA_STATUS_SUCCESS != 12078 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12079 (void *)&msg_info, 12080 sizeof(msg_info), 0)) { 12081 } 12082 } 12083#if 0 12084 printf("ctl_abort_task: found I/O to abort\n"); 12085#endif 12086 break; 12087 } 12088 } 12089 } 12090 mtx_unlock(&lun->lun_lock); 12091 12092 if (found == 0) { 12093 /* 12094 * This isn't really an error. It's entirely possible for 12095 * the abort and command completion to cross on the wire. 12096 * This is more of an informative/diagnostic error. 12097 */ 12098#if 0 12099 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12100 "%d:%d:%d:%d tag %d type %d\n", 12101 io->io_hdr.nexus.initid.id, 12102 io->io_hdr.nexus.targ_port, 12103 io->io_hdr.nexus.targ_target.id, 12104 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12105 io->taskio.tag_type); 12106#endif 12107 } 12108 return (0); 12109} 12110 12111static void 12112ctl_run_task(union ctl_io *io) 12113{ 12114 struct ctl_softc *ctl_softc = control_softc; 12115 int retval = 1; 12116 const char *task_desc; 12117 12118 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12119 12120 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12121 ("ctl_run_task: Unextected io_type %d\n", 12122 io->io_hdr.io_type)); 12123 12124 task_desc = ctl_scsi_task_string(&io->taskio); 12125 if (task_desc != NULL) { 12126#ifdef NEEDTOPORT 12127 csevent_log(CSC_CTL | CSC_SHELF_SW | 12128 CTL_TASK_REPORT, 12129 csevent_LogType_Trace, 12130 csevent_Severity_Information, 12131 csevent_AlertLevel_Green, 12132 csevent_FRU_Firmware, 12133 csevent_FRU_Unknown, 12134 "CTL: received task: %s",task_desc); 12135#endif 12136 } else { 12137#ifdef NEEDTOPORT 12138 csevent_log(CSC_CTL | CSC_SHELF_SW | 12139 CTL_TASK_REPORT, 12140 csevent_LogType_Trace, 12141 csevent_Severity_Information, 12142 csevent_AlertLevel_Green, 12143 csevent_FRU_Firmware, 12144 csevent_FRU_Unknown, 12145 "CTL: received unknown task " 12146 "type: %d (%#x)", 12147 io->taskio.task_action, 12148 io->taskio.task_action); 12149#endif 12150 } 12151 switch (io->taskio.task_action) { 12152 case CTL_TASK_ABORT_TASK: 12153 retval = ctl_abort_task(io); 12154 break; 12155 case CTL_TASK_ABORT_TASK_SET: 12156 case CTL_TASK_CLEAR_TASK_SET: 12157 retval = ctl_abort_task_set(io); 12158 break; 12159 case CTL_TASK_CLEAR_ACA: 12160 break; 12161 case CTL_TASK_I_T_NEXUS_RESET: 12162 retval = ctl_i_t_nexus_reset(io); 12163 break; 12164 case CTL_TASK_LUN_RESET: { 12165 struct ctl_lun *lun; 12166 uint32_t targ_lun; 12167 12168 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12169 mtx_lock(&ctl_softc->ctl_lock); 12170 if ((targ_lun < CTL_MAX_LUNS) 12171 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12172 lun = ctl_softc->ctl_luns[targ_lun]; 12173 else { 12174 mtx_unlock(&ctl_softc->ctl_lock); 12175 retval = 1; 12176 break; 12177 } 12178 12179 if (!(io->io_hdr.flags & 12180 CTL_FLAG_FROM_OTHER_SC)) { 12181 union ctl_ha_msg msg_info; 12182 12183 io->io_hdr.flags |= 12184 CTL_FLAG_SENT_2OTHER_SC; 12185 msg_info.hdr.msg_type = 12186 CTL_MSG_MANAGE_TASKS; 12187 msg_info.hdr.nexus = io->io_hdr.nexus; 12188 msg_info.task.task_action = 12189 CTL_TASK_LUN_RESET; 12190 msg_info.hdr.original_sc = NULL; 12191 msg_info.hdr.serializing_sc = NULL; 12192 if (CTL_HA_STATUS_SUCCESS != 12193 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12194 (void *)&msg_info, 12195 sizeof(msg_info), 0)) { 12196 } 12197 } 12198 12199 retval = ctl_lun_reset(lun, io, 12200 CTL_UA_LUN_RESET); 12201 mtx_unlock(&ctl_softc->ctl_lock); 12202 break; 12203 } 12204 case CTL_TASK_TARGET_RESET: 12205 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12206 break; 12207 case CTL_TASK_BUS_RESET: 12208 retval = ctl_bus_reset(ctl_softc, io); 12209 break; 12210 case CTL_TASK_PORT_LOGIN: 12211 break; 12212 case CTL_TASK_PORT_LOGOUT: 12213 break; 12214 default: 12215 printf("ctl_run_task: got unknown task management event %d\n", 12216 io->taskio.task_action); 12217 break; 12218 } 12219 if (retval == 0) 12220 io->io_hdr.status = CTL_SUCCESS; 12221 else 12222 io->io_hdr.status = CTL_ERROR; 12223 ctl_done(io); 12224} 12225 12226/* 12227 * For HA operation. Handle commands that come in from the other 12228 * controller. 12229 */ 12230static void 12231ctl_handle_isc(union ctl_io *io) 12232{ 12233 int free_io; 12234 struct ctl_lun *lun; 12235 struct ctl_softc *ctl_softc; 12236 uint32_t targ_lun; 12237 12238 ctl_softc = control_softc; 12239 12240 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12241 lun = ctl_softc->ctl_luns[targ_lun]; 12242 12243 switch (io->io_hdr.msg_type) { 12244 case CTL_MSG_SERIALIZE: 12245 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12246 break; 12247 case CTL_MSG_R2R: { 12248 const struct ctl_cmd_entry *entry; 12249 12250 /* 12251 * This is only used in SER_ONLY mode. 12252 */ 12253 free_io = 0; 12254 entry = ctl_get_cmd_entry(&io->scsiio); 12255 mtx_lock(&lun->lun_lock); 12256 if (ctl_scsiio_lun_check(ctl_softc, lun, 12257 entry, (struct ctl_scsiio *)io) != 0) { 12258 mtx_unlock(&lun->lun_lock); 12259 ctl_done(io); 12260 break; 12261 } 12262 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12263 mtx_unlock(&lun->lun_lock); 12264 ctl_enqueue_rtr(io); 12265 break; 12266 } 12267 case CTL_MSG_FINISH_IO: 12268 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12269 free_io = 0; 12270 ctl_done(io); 12271 } else { 12272 free_io = 1; 12273 mtx_lock(&lun->lun_lock); 12274 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12275 ooa_links); 12276 ctl_check_blocked(lun); 12277 mtx_unlock(&lun->lun_lock); 12278 } 12279 break; 12280 case CTL_MSG_PERS_ACTION: 12281 ctl_hndl_per_res_out_on_other_sc( 12282 (union ctl_ha_msg *)&io->presio.pr_msg); 12283 free_io = 1; 12284 break; 12285 case CTL_MSG_BAD_JUJU: 12286 free_io = 0; 12287 ctl_done(io); 12288 break; 12289 case CTL_MSG_DATAMOVE: 12290 /* Only used in XFER mode */ 12291 free_io = 0; 12292 ctl_datamove_remote(io); 12293 break; 12294 case CTL_MSG_DATAMOVE_DONE: 12295 /* Only used in XFER mode */ 12296 free_io = 0; 12297 io->scsiio.be_move_done(io); 12298 break; 12299 default: 12300 free_io = 1; 12301 printf("%s: Invalid message type %d\n", 12302 __func__, io->io_hdr.msg_type); 12303 break; 12304 } 12305 if (free_io) 12306 ctl_free_io(io); 12307 12308} 12309 12310 12311/* 12312 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12313 * there is no match. 12314 */ 12315static ctl_lun_error_pattern 12316ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12317{ 12318 const struct ctl_cmd_entry *entry; 12319 ctl_lun_error_pattern filtered_pattern, pattern; 12320 12321 pattern = desc->error_pattern; 12322 12323 /* 12324 * XXX KDM we need more data passed into this function to match a 12325 * custom pattern, and we actually need to implement custom pattern 12326 * matching. 12327 */ 12328 if (pattern & CTL_LUN_PAT_CMD) 12329 return (CTL_LUN_PAT_CMD); 12330 12331 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12332 return (CTL_LUN_PAT_ANY); 12333 12334 entry = ctl_get_cmd_entry(ctsio); 12335 12336 filtered_pattern = entry->pattern & pattern; 12337 12338 /* 12339 * If the user requested specific flags in the pattern (e.g. 12340 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12341 * flags. 12342 * 12343 * If the user did not specify any flags, it doesn't matter whether 12344 * or not the command supports the flags. 12345 */ 12346 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12347 (pattern & ~CTL_LUN_PAT_MASK)) 12348 return (CTL_LUN_PAT_NONE); 12349 12350 /* 12351 * If the user asked for a range check, see if the requested LBA 12352 * range overlaps with this command's LBA range. 12353 */ 12354 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12355 uint64_t lba1; 12356 uint32_t len1; 12357 ctl_action action; 12358 int retval; 12359 12360 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12361 if (retval != 0) 12362 return (CTL_LUN_PAT_NONE); 12363 12364 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12365 desc->lba_range.len); 12366 /* 12367 * A "pass" means that the LBA ranges don't overlap, so 12368 * this doesn't match the user's range criteria. 12369 */ 12370 if (action == CTL_ACTION_PASS) 12371 return (CTL_LUN_PAT_NONE); 12372 } 12373 12374 return (filtered_pattern); 12375} 12376 12377static void 12378ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12379{ 12380 struct ctl_error_desc *desc, *desc2; 12381 12382 mtx_assert(&lun->lun_lock, MA_OWNED); 12383 12384 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12385 ctl_lun_error_pattern pattern; 12386 /* 12387 * Check to see whether this particular command matches 12388 * the pattern in the descriptor. 12389 */ 12390 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12391 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12392 continue; 12393 12394 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12395 case CTL_LUN_INJ_ABORTED: 12396 ctl_set_aborted(&io->scsiio); 12397 break; 12398 case CTL_LUN_INJ_MEDIUM_ERR: 12399 ctl_set_medium_error(&io->scsiio); 12400 break; 12401 case CTL_LUN_INJ_UA: 12402 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12403 * OCCURRED */ 12404 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12405 break; 12406 case CTL_LUN_INJ_CUSTOM: 12407 /* 12408 * We're assuming the user knows what he is doing. 12409 * Just copy the sense information without doing 12410 * checks. 12411 */ 12412 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12413 ctl_min(sizeof(desc->custom_sense), 12414 sizeof(io->scsiio.sense_data))); 12415 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12416 io->scsiio.sense_len = SSD_FULL_SIZE; 12417 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12418 break; 12419 case CTL_LUN_INJ_NONE: 12420 default: 12421 /* 12422 * If this is an error injection type we don't know 12423 * about, clear the continuous flag (if it is set) 12424 * so it will get deleted below. 12425 */ 12426 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12427 break; 12428 } 12429 /* 12430 * By default, each error injection action is a one-shot 12431 */ 12432 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12433 continue; 12434 12435 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12436 12437 free(desc, M_CTL); 12438 } 12439} 12440 12441#ifdef CTL_IO_DELAY 12442static void 12443ctl_datamove_timer_wakeup(void *arg) 12444{ 12445 union ctl_io *io; 12446 12447 io = (union ctl_io *)arg; 12448 12449 ctl_datamove(io); 12450} 12451#endif /* CTL_IO_DELAY */ 12452 12453void 12454ctl_datamove(union ctl_io *io) 12455{ 12456 void (*fe_datamove)(union ctl_io *io); 12457 12458 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12459 12460 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12461 12462#ifdef CTL_TIME_IO 12463 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12464 char str[256]; 12465 char path_str[64]; 12466 struct sbuf sb; 12467 12468 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12469 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12470 12471 sbuf_cat(&sb, path_str); 12472 switch (io->io_hdr.io_type) { 12473 case CTL_IO_SCSI: 12474 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12475 sbuf_printf(&sb, "\n"); 12476 sbuf_cat(&sb, path_str); 12477 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12478 io->scsiio.tag_num, io->scsiio.tag_type); 12479 break; 12480 case CTL_IO_TASK: 12481 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12482 "Tag Type: %d\n", io->taskio.task_action, 12483 io->taskio.tag_num, io->taskio.tag_type); 12484 break; 12485 default: 12486 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12487 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12488 break; 12489 } 12490 sbuf_cat(&sb, path_str); 12491 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12492 (intmax_t)time_uptime - io->io_hdr.start_time); 12493 sbuf_finish(&sb); 12494 printf("%s", sbuf_data(&sb)); 12495 } 12496#endif /* CTL_TIME_IO */ 12497 12498#ifdef CTL_IO_DELAY 12499 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12500 struct ctl_lun *lun; 12501 12502 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12503 12504 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12505 } else { 12506 struct ctl_lun *lun; 12507 12508 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12509 if ((lun != NULL) 12510 && (lun->delay_info.datamove_delay > 0)) { 12511 struct callout *callout; 12512 12513 callout = (struct callout *)&io->io_hdr.timer_bytes; 12514 callout_init(callout, /*mpsafe*/ 1); 12515 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12516 callout_reset(callout, 12517 lun->delay_info.datamove_delay * hz, 12518 ctl_datamove_timer_wakeup, io); 12519 if (lun->delay_info.datamove_type == 12520 CTL_DELAY_TYPE_ONESHOT) 12521 lun->delay_info.datamove_delay = 0; 12522 return; 12523 } 12524 } 12525#endif 12526 12527 /* 12528 * This command has been aborted. Set the port status, so we fail 12529 * the data move. 12530 */ 12531 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12532 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12533 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12534 io->io_hdr.nexus.targ_port, 12535 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12536 io->io_hdr.nexus.targ_lun); 12537 io->io_hdr.port_status = 31337; 12538 /* 12539 * Note that the backend, in this case, will get the 12540 * callback in its context. In other cases it may get 12541 * called in the frontend's interrupt thread context. 12542 */ 12543 io->scsiio.be_move_done(io); 12544 return; 12545 } 12546 12547 /* 12548 * If we're in XFER mode and this I/O is from the other shelf 12549 * controller, we need to send the DMA to the other side to 12550 * actually transfer the data to/from the host. In serialize only 12551 * mode the transfer happens below CTL and ctl_datamove() is only 12552 * called on the machine that originally received the I/O. 12553 */ 12554 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12555 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12556 union ctl_ha_msg msg; 12557 uint32_t sg_entries_sent; 12558 int do_sg_copy; 12559 int i; 12560 12561 memset(&msg, 0, sizeof(msg)); 12562 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12563 msg.hdr.original_sc = io->io_hdr.original_sc; 12564 msg.hdr.serializing_sc = io; 12565 msg.hdr.nexus = io->io_hdr.nexus; 12566 msg.dt.flags = io->io_hdr.flags; 12567 /* 12568 * We convert everything into a S/G list here. We can't 12569 * pass by reference, only by value between controllers. 12570 * So we can't pass a pointer to the S/G list, only as many 12571 * S/G entries as we can fit in here. If it's possible for 12572 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12573 * then we need to break this up into multiple transfers. 12574 */ 12575 if (io->scsiio.kern_sg_entries == 0) { 12576 msg.dt.kern_sg_entries = 1; 12577 /* 12578 * If this is in cached memory, flush the cache 12579 * before we send the DMA request to the other 12580 * controller. We want to do this in either the 12581 * read or the write case. The read case is 12582 * straightforward. In the write case, we want to 12583 * make sure nothing is in the local cache that 12584 * could overwrite the DMAed data. 12585 */ 12586 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12587 /* 12588 * XXX KDM use bus_dmamap_sync() here. 12589 */ 12590 } 12591 12592 /* 12593 * Convert to a physical address if this is a 12594 * virtual address. 12595 */ 12596 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12597 msg.dt.sg_list[0].addr = 12598 io->scsiio.kern_data_ptr; 12599 } else { 12600 /* 12601 * XXX KDM use busdma here! 12602 */ 12603#if 0 12604 msg.dt.sg_list[0].addr = (void *) 12605 vtophys(io->scsiio.kern_data_ptr); 12606#endif 12607 } 12608 12609 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12610 do_sg_copy = 0; 12611 } else { 12612 struct ctl_sg_entry *sgl; 12613 12614 do_sg_copy = 1; 12615 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12616 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12617 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12618 /* 12619 * XXX KDM use bus_dmamap_sync() here. 12620 */ 12621 } 12622 } 12623 12624 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12625 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12626 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12627 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12628 msg.dt.sg_sequence = 0; 12629 12630 /* 12631 * Loop until we've sent all of the S/G entries. On the 12632 * other end, we'll recompose these S/G entries into one 12633 * contiguous list before passing it to the 12634 */ 12635 for (sg_entries_sent = 0; sg_entries_sent < 12636 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12637 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12638 sizeof(msg.dt.sg_list[0])), 12639 msg.dt.kern_sg_entries - sg_entries_sent); 12640 12641 if (do_sg_copy != 0) { 12642 struct ctl_sg_entry *sgl; 12643 int j; 12644 12645 sgl = (struct ctl_sg_entry *) 12646 io->scsiio.kern_data_ptr; 12647 /* 12648 * If this is in cached memory, flush the cache 12649 * before we send the DMA request to the other 12650 * controller. We want to do this in either 12651 * the * read or the write case. The read 12652 * case is straightforward. In the write 12653 * case, we want to make sure nothing is 12654 * in the local cache that could overwrite 12655 * the DMAed data. 12656 */ 12657 12658 for (i = sg_entries_sent, j = 0; 12659 i < msg.dt.cur_sg_entries; i++, j++) { 12660 if ((io->io_hdr.flags & 12661 CTL_FLAG_NO_DATASYNC) == 0) { 12662 /* 12663 * XXX KDM use bus_dmamap_sync() 12664 */ 12665 } 12666 if ((io->io_hdr.flags & 12667 CTL_FLAG_BUS_ADDR) == 0) { 12668 /* 12669 * XXX KDM use busdma. 12670 */ 12671#if 0 12672 msg.dt.sg_list[j].addr =(void *) 12673 vtophys(sgl[i].addr); 12674#endif 12675 } else { 12676 msg.dt.sg_list[j].addr = 12677 sgl[i].addr; 12678 } 12679 msg.dt.sg_list[j].len = sgl[i].len; 12680 } 12681 } 12682 12683 sg_entries_sent += msg.dt.cur_sg_entries; 12684 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12685 msg.dt.sg_last = 1; 12686 else 12687 msg.dt.sg_last = 0; 12688 12689 /* 12690 * XXX KDM drop and reacquire the lock here? 12691 */ 12692 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12693 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12694 /* 12695 * XXX do something here. 12696 */ 12697 } 12698 12699 msg.dt.sent_sg_entries = sg_entries_sent; 12700 } 12701 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12702 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12703 ctl_failover_io(io, /*have_lock*/ 0); 12704 12705 } else { 12706 12707 /* 12708 * Lookup the fe_datamove() function for this particular 12709 * front end. 12710 */ 12711 fe_datamove = 12712 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12713 12714 fe_datamove(io); 12715 } 12716} 12717 12718static void 12719ctl_send_datamove_done(union ctl_io *io, int have_lock) 12720{ 12721 union ctl_ha_msg msg; 12722 int isc_status; 12723 12724 memset(&msg, 0, sizeof(msg)); 12725 12726 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12727 msg.hdr.original_sc = io; 12728 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12729 msg.hdr.nexus = io->io_hdr.nexus; 12730 msg.hdr.status = io->io_hdr.status; 12731 msg.scsi.tag_num = io->scsiio.tag_num; 12732 msg.scsi.tag_type = io->scsiio.tag_type; 12733 msg.scsi.scsi_status = io->scsiio.scsi_status; 12734 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12735 sizeof(io->scsiio.sense_data)); 12736 msg.scsi.sense_len = io->scsiio.sense_len; 12737 msg.scsi.sense_residual = io->scsiio.sense_residual; 12738 msg.scsi.fetd_status = io->io_hdr.port_status; 12739 msg.scsi.residual = io->scsiio.residual; 12740 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12741 12742 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12743 ctl_failover_io(io, /*have_lock*/ have_lock); 12744 return; 12745 } 12746 12747 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12748 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12749 /* XXX do something if this fails */ 12750 } 12751 12752} 12753 12754/* 12755 * The DMA to the remote side is done, now we need to tell the other side 12756 * we're done so it can continue with its data movement. 12757 */ 12758static void 12759ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12760{ 12761 union ctl_io *io; 12762 12763 io = rq->context; 12764 12765 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12766 printf("%s: ISC DMA write failed with error %d", __func__, 12767 rq->ret); 12768 ctl_set_internal_failure(&io->scsiio, 12769 /*sks_valid*/ 1, 12770 /*retry_count*/ rq->ret); 12771 } 12772 12773 ctl_dt_req_free(rq); 12774 12775 /* 12776 * In this case, we had to malloc the memory locally. Free it. 12777 */ 12778 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12779 int i; 12780 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12781 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12782 } 12783 /* 12784 * The data is in local and remote memory, so now we need to send 12785 * status (good or back) back to the other side. 12786 */ 12787 ctl_send_datamove_done(io, /*have_lock*/ 0); 12788} 12789 12790/* 12791 * We've moved the data from the host/controller into local memory. Now we 12792 * need to push it over to the remote controller's memory. 12793 */ 12794static int 12795ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12796{ 12797 int retval; 12798 12799 retval = 0; 12800 12801 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12802 ctl_datamove_remote_write_cb); 12803 12804 return (retval); 12805} 12806 12807static void 12808ctl_datamove_remote_write(union ctl_io *io) 12809{ 12810 int retval; 12811 void (*fe_datamove)(union ctl_io *io); 12812 12813 /* 12814 * - Get the data from the host/HBA into local memory. 12815 * - DMA memory from the local controller to the remote controller. 12816 * - Send status back to the remote controller. 12817 */ 12818 12819 retval = ctl_datamove_remote_sgl_setup(io); 12820 if (retval != 0) 12821 return; 12822 12823 /* Switch the pointer over so the FETD knows what to do */ 12824 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12825 12826 /* 12827 * Use a custom move done callback, since we need to send completion 12828 * back to the other controller, not to the backend on this side. 12829 */ 12830 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12831 12832 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12833 12834 fe_datamove(io); 12835 12836 return; 12837 12838} 12839 12840static int 12841ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12842{ 12843#if 0 12844 char str[256]; 12845 char path_str[64]; 12846 struct sbuf sb; 12847#endif 12848 12849 /* 12850 * In this case, we had to malloc the memory locally. Free it. 12851 */ 12852 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12853 int i; 12854 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12855 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12856 } 12857 12858#if 0 12859 scsi_path_string(io, path_str, sizeof(path_str)); 12860 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12861 sbuf_cat(&sb, path_str); 12862 scsi_command_string(&io->scsiio, NULL, &sb); 12863 sbuf_printf(&sb, "\n"); 12864 sbuf_cat(&sb, path_str); 12865 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12866 io->scsiio.tag_num, io->scsiio.tag_type); 12867 sbuf_cat(&sb, path_str); 12868 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12869 io->io_hdr.flags, io->io_hdr.status); 12870 sbuf_finish(&sb); 12871 printk("%s", sbuf_data(&sb)); 12872#endif 12873 12874 12875 /* 12876 * The read is done, now we need to send status (good or bad) back 12877 * to the other side. 12878 */ 12879 ctl_send_datamove_done(io, /*have_lock*/ 0); 12880 12881 return (0); 12882} 12883 12884static void 12885ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12886{ 12887 union ctl_io *io; 12888 void (*fe_datamove)(union ctl_io *io); 12889 12890 io = rq->context; 12891 12892 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12893 printf("%s: ISC DMA read failed with error %d", __func__, 12894 rq->ret); 12895 ctl_set_internal_failure(&io->scsiio, 12896 /*sks_valid*/ 1, 12897 /*retry_count*/ rq->ret); 12898 } 12899 12900 ctl_dt_req_free(rq); 12901 12902 /* Switch the pointer over so the FETD knows what to do */ 12903 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12904 12905 /* 12906 * Use a custom move done callback, since we need to send completion 12907 * back to the other controller, not to the backend on this side. 12908 */ 12909 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12910 12911 /* XXX KDM add checks like the ones in ctl_datamove? */ 12912 12913 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12914 12915 fe_datamove(io); 12916} 12917 12918static int 12919ctl_datamove_remote_sgl_setup(union ctl_io *io) 12920{ 12921 struct ctl_sg_entry *local_sglist, *remote_sglist; 12922 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12923 struct ctl_softc *softc; 12924 int retval; 12925 int i; 12926 12927 retval = 0; 12928 softc = control_softc; 12929 12930 local_sglist = io->io_hdr.local_sglist; 12931 local_dma_sglist = io->io_hdr.local_dma_sglist; 12932 remote_sglist = io->io_hdr.remote_sglist; 12933 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12934 12935 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12936 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12937 local_sglist[i].len = remote_sglist[i].len; 12938 12939 /* 12940 * XXX Detect the situation where the RS-level I/O 12941 * redirector on the other side has already read the 12942 * data off of the AOR RS on this side, and 12943 * transferred it to remote (mirror) memory on the 12944 * other side. Since we already have the data in 12945 * memory here, we just need to use it. 12946 * 12947 * XXX KDM this can probably be removed once we 12948 * get the cache device code in and take the 12949 * current AOR implementation out. 12950 */ 12951#ifdef NEEDTOPORT 12952 if ((remote_sglist[i].addr >= 12953 (void *)vtophys(softc->mirr->addr)) 12954 && (remote_sglist[i].addr < 12955 ((void *)vtophys(softc->mirr->addr) + 12956 CacheMirrorOffset))) { 12957 local_sglist[i].addr = remote_sglist[i].addr - 12958 CacheMirrorOffset; 12959 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12960 CTL_FLAG_DATA_IN) 12961 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12962 } else { 12963 local_sglist[i].addr = remote_sglist[i].addr + 12964 CacheMirrorOffset; 12965 } 12966#endif 12967#if 0 12968 printf("%s: local %p, remote %p, len %d\n", 12969 __func__, local_sglist[i].addr, 12970 remote_sglist[i].addr, local_sglist[i].len); 12971#endif 12972 } 12973 } else { 12974 uint32_t len_to_go; 12975 12976 /* 12977 * In this case, we don't have automatically allocated 12978 * memory for this I/O on this controller. This typically 12979 * happens with internal CTL I/O -- e.g. inquiry, mode 12980 * sense, etc. Anything coming from RAIDCore will have 12981 * a mirror area available. 12982 */ 12983 len_to_go = io->scsiio.kern_data_len; 12984 12985 /* 12986 * Clear the no datasync flag, we have to use malloced 12987 * buffers. 12988 */ 12989 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12990 12991 /* 12992 * The difficult thing here is that the size of the various 12993 * S/G segments may be different than the size from the 12994 * remote controller. That'll make it harder when DMAing 12995 * the data back to the other side. 12996 */ 12997 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12998 sizeof(io->io_hdr.remote_sglist[0])) && 12999 (len_to_go > 0); i++) { 13000 local_sglist[i].len = ctl_min(len_to_go, 131072); 13001 CTL_SIZE_8B(local_dma_sglist[i].len, 13002 local_sglist[i].len); 13003 local_sglist[i].addr = 13004 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13005 13006 local_dma_sglist[i].addr = local_sglist[i].addr; 13007 13008 if (local_sglist[i].addr == NULL) { 13009 int j; 13010 13011 printf("malloc failed for %zd bytes!", 13012 local_dma_sglist[i].len); 13013 for (j = 0; j < i; j++) { 13014 free(local_sglist[j].addr, M_CTL); 13015 } 13016 ctl_set_internal_failure(&io->scsiio, 13017 /*sks_valid*/ 1, 13018 /*retry_count*/ 4857); 13019 retval = 1; 13020 goto bailout_error; 13021 13022 } 13023 /* XXX KDM do we need a sync here? */ 13024 13025 len_to_go -= local_sglist[i].len; 13026 } 13027 /* 13028 * Reset the number of S/G entries accordingly. The 13029 * original number of S/G entries is available in 13030 * rem_sg_entries. 13031 */ 13032 io->scsiio.kern_sg_entries = i; 13033 13034#if 0 13035 printf("%s: kern_sg_entries = %d\n", __func__, 13036 io->scsiio.kern_sg_entries); 13037 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13038 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13039 local_sglist[i].addr, local_sglist[i].len, 13040 local_dma_sglist[i].len); 13041#endif 13042 } 13043 13044 13045 return (retval); 13046 13047bailout_error: 13048 13049 ctl_send_datamove_done(io, /*have_lock*/ 0); 13050 13051 return (retval); 13052} 13053 13054static int 13055ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13056 ctl_ha_dt_cb callback) 13057{ 13058 struct ctl_ha_dt_req *rq; 13059 struct ctl_sg_entry *remote_sglist, *local_sglist; 13060 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13061 uint32_t local_used, remote_used, total_used; 13062 int retval; 13063 int i, j; 13064 13065 retval = 0; 13066 13067 rq = ctl_dt_req_alloc(); 13068 13069 /* 13070 * If we failed to allocate the request, and if the DMA didn't fail 13071 * anyway, set busy status. This is just a resource allocation 13072 * failure. 13073 */ 13074 if ((rq == NULL) 13075 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13076 ctl_set_busy(&io->scsiio); 13077 13078 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13079 13080 if (rq != NULL) 13081 ctl_dt_req_free(rq); 13082 13083 /* 13084 * The data move failed. We need to return status back 13085 * to the other controller. No point in trying to DMA 13086 * data to the remote controller. 13087 */ 13088 13089 ctl_send_datamove_done(io, /*have_lock*/ 0); 13090 13091 retval = 1; 13092 13093 goto bailout; 13094 } 13095 13096 local_sglist = io->io_hdr.local_sglist; 13097 local_dma_sglist = io->io_hdr.local_dma_sglist; 13098 remote_sglist = io->io_hdr.remote_sglist; 13099 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13100 local_used = 0; 13101 remote_used = 0; 13102 total_used = 0; 13103 13104 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13105 rq->ret = CTL_HA_STATUS_SUCCESS; 13106 rq->context = io; 13107 callback(rq); 13108 goto bailout; 13109 } 13110 13111 /* 13112 * Pull/push the data over the wire from/to the other controller. 13113 * This takes into account the possibility that the local and 13114 * remote sglists may not be identical in terms of the size of 13115 * the elements and the number of elements. 13116 * 13117 * One fundamental assumption here is that the length allocated for 13118 * both the local and remote sglists is identical. Otherwise, we've 13119 * essentially got a coding error of some sort. 13120 */ 13121 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13122 int isc_ret; 13123 uint32_t cur_len, dma_length; 13124 uint8_t *tmp_ptr; 13125 13126 rq->id = CTL_HA_DATA_CTL; 13127 rq->command = command; 13128 rq->context = io; 13129 13130 /* 13131 * Both pointers should be aligned. But it is possible 13132 * that the allocation length is not. They should both 13133 * also have enough slack left over at the end, though, 13134 * to round up to the next 8 byte boundary. 13135 */ 13136 cur_len = ctl_min(local_sglist[i].len - local_used, 13137 remote_sglist[j].len - remote_used); 13138 13139 /* 13140 * In this case, we have a size issue and need to decrease 13141 * the size, except in the case where we actually have less 13142 * than 8 bytes left. In that case, we need to increase 13143 * the DMA length to get the last bit. 13144 */ 13145 if ((cur_len & 0x7) != 0) { 13146 if (cur_len > 0x7) { 13147 cur_len = cur_len - (cur_len & 0x7); 13148 dma_length = cur_len; 13149 } else { 13150 CTL_SIZE_8B(dma_length, cur_len); 13151 } 13152 13153 } else 13154 dma_length = cur_len; 13155 13156 /* 13157 * If we had to allocate memory for this I/O, instead of using 13158 * the non-cached mirror memory, we'll need to flush the cache 13159 * before trying to DMA to the other controller. 13160 * 13161 * We could end up doing this multiple times for the same 13162 * segment if we have a larger local segment than remote 13163 * segment. That shouldn't be an issue. 13164 */ 13165 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13166 /* 13167 * XXX KDM use bus_dmamap_sync() here. 13168 */ 13169 } 13170 13171 rq->size = dma_length; 13172 13173 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13174 tmp_ptr += local_used; 13175 13176 /* Use physical addresses when talking to ISC hardware */ 13177 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13178 /* XXX KDM use busdma */ 13179#if 0 13180 rq->local = vtophys(tmp_ptr); 13181#endif 13182 } else 13183 rq->local = tmp_ptr; 13184 13185 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13186 tmp_ptr += remote_used; 13187 rq->remote = tmp_ptr; 13188 13189 rq->callback = NULL; 13190 13191 local_used += cur_len; 13192 if (local_used >= local_sglist[i].len) { 13193 i++; 13194 local_used = 0; 13195 } 13196 13197 remote_used += cur_len; 13198 if (remote_used >= remote_sglist[j].len) { 13199 j++; 13200 remote_used = 0; 13201 } 13202 total_used += cur_len; 13203 13204 if (total_used >= io->scsiio.kern_data_len) 13205 rq->callback = callback; 13206 13207 if ((rq->size & 0x7) != 0) { 13208 printf("%s: warning: size %d is not on 8b boundary\n", 13209 __func__, rq->size); 13210 } 13211 if (((uintptr_t)rq->local & 0x7) != 0) { 13212 printf("%s: warning: local %p not on 8b boundary\n", 13213 __func__, rq->local); 13214 } 13215 if (((uintptr_t)rq->remote & 0x7) != 0) { 13216 printf("%s: warning: remote %p not on 8b boundary\n", 13217 __func__, rq->local); 13218 } 13219#if 0 13220 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13221 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13222 rq->local, rq->remote, rq->size); 13223#endif 13224 13225 isc_ret = ctl_dt_single(rq); 13226 if (isc_ret == CTL_HA_STATUS_WAIT) 13227 continue; 13228 13229 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13230 rq->ret = CTL_HA_STATUS_SUCCESS; 13231 } else { 13232 rq->ret = isc_ret; 13233 } 13234 callback(rq); 13235 goto bailout; 13236 } 13237 13238bailout: 13239 return (retval); 13240 13241} 13242 13243static void 13244ctl_datamove_remote_read(union ctl_io *io) 13245{ 13246 int retval; 13247 int i; 13248 13249 /* 13250 * This will send an error to the other controller in the case of a 13251 * failure. 13252 */ 13253 retval = ctl_datamove_remote_sgl_setup(io); 13254 if (retval != 0) 13255 return; 13256 13257 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13258 ctl_datamove_remote_read_cb); 13259 if ((retval != 0) 13260 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13261 /* 13262 * Make sure we free memory if there was an error.. The 13263 * ctl_datamove_remote_xfer() function will send the 13264 * datamove done message, or call the callback with an 13265 * error if there is a problem. 13266 */ 13267 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13268 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13269 } 13270 13271 return; 13272} 13273 13274/* 13275 * Process a datamove request from the other controller. This is used for 13276 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13277 * first. Once that is complete, the data gets DMAed into the remote 13278 * controller's memory. For reads, we DMA from the remote controller's 13279 * memory into our memory first, and then move it out to the FETD. 13280 */ 13281static void 13282ctl_datamove_remote(union ctl_io *io) 13283{ 13284 struct ctl_softc *softc; 13285 13286 softc = control_softc; 13287 13288 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13289 13290 /* 13291 * Note that we look for an aborted I/O here, but don't do some of 13292 * the other checks that ctl_datamove() normally does. 13293 * We don't need to run the datamove delay code, since that should 13294 * have been done if need be on the other controller. 13295 */ 13296 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13297 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13298 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13299 io->io_hdr.nexus.targ_port, 13300 io->io_hdr.nexus.targ_target.id, 13301 io->io_hdr.nexus.targ_lun); 13302 io->io_hdr.port_status = 31338; 13303 ctl_send_datamove_done(io, /*have_lock*/ 0); 13304 return; 13305 } 13306 13307 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13308 ctl_datamove_remote_write(io); 13309 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13310 ctl_datamove_remote_read(io); 13311 } else { 13312 union ctl_ha_msg msg; 13313 struct scsi_sense_data *sense; 13314 uint8_t sks[3]; 13315 int retry_count; 13316 13317 memset(&msg, 0, sizeof(msg)); 13318 13319 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13320 msg.hdr.status = CTL_SCSI_ERROR; 13321 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13322 13323 retry_count = 4243; 13324 13325 sense = &msg.scsi.sense_data; 13326 sks[0] = SSD_SCS_VALID; 13327 sks[1] = (retry_count >> 8) & 0xff; 13328 sks[2] = retry_count & 0xff; 13329 13330 /* "Internal target failure" */ 13331 scsi_set_sense_data(sense, 13332 /*sense_format*/ SSD_TYPE_NONE, 13333 /*current_error*/ 1, 13334 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13335 /*asc*/ 0x44, 13336 /*ascq*/ 0x00, 13337 /*type*/ SSD_ELEM_SKS, 13338 /*size*/ sizeof(sks), 13339 /*data*/ sks, 13340 SSD_ELEM_NONE); 13341 13342 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13343 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13344 ctl_failover_io(io, /*have_lock*/ 1); 13345 return; 13346 } 13347 13348 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13349 CTL_HA_STATUS_SUCCESS) { 13350 /* XXX KDM what to do if this fails? */ 13351 } 13352 return; 13353 } 13354 13355} 13356 13357static int 13358ctl_process_done(union ctl_io *io) 13359{ 13360 struct ctl_lun *lun; 13361 struct ctl_softc *ctl_softc; 13362 void (*fe_done)(union ctl_io *io); 13363 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13364 13365 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13366 13367 fe_done = 13368 control_softc->ctl_ports[targ_port]->fe_done; 13369 13370#ifdef CTL_TIME_IO 13371 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13372 char str[256]; 13373 char path_str[64]; 13374 struct sbuf sb; 13375 13376 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13377 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13378 13379 sbuf_cat(&sb, path_str); 13380 switch (io->io_hdr.io_type) { 13381 case CTL_IO_SCSI: 13382 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13383 sbuf_printf(&sb, "\n"); 13384 sbuf_cat(&sb, path_str); 13385 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13386 io->scsiio.tag_num, io->scsiio.tag_type); 13387 break; 13388 case CTL_IO_TASK: 13389 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13390 "Tag Type: %d\n", io->taskio.task_action, 13391 io->taskio.tag_num, io->taskio.tag_type); 13392 break; 13393 default: 13394 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13395 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13396 break; 13397 } 13398 sbuf_cat(&sb, path_str); 13399 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13400 (intmax_t)time_uptime - io->io_hdr.start_time); 13401 sbuf_finish(&sb); 13402 printf("%s", sbuf_data(&sb)); 13403 } 13404#endif /* CTL_TIME_IO */ 13405 13406 switch (io->io_hdr.io_type) { 13407 case CTL_IO_SCSI: 13408 break; 13409 case CTL_IO_TASK: 13410 if (bootverbose || verbose > 0) 13411 ctl_io_error_print(io, NULL); 13412 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13413 ctl_free_io(io); 13414 else 13415 fe_done(io); 13416 return (CTL_RETVAL_COMPLETE); 13417 break; 13418 default: 13419 printf("ctl_process_done: invalid io type %d\n", 13420 io->io_hdr.io_type); 13421 panic("ctl_process_done: invalid io type %d\n", 13422 io->io_hdr.io_type); 13423 break; /* NOTREACHED */ 13424 } 13425 13426 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13427 if (lun == NULL) { 13428 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13429 io->io_hdr.nexus.targ_mapped_lun)); 13430 fe_done(io); 13431 goto bailout; 13432 } 13433 ctl_softc = lun->ctl_softc; 13434 13435 mtx_lock(&lun->lun_lock); 13436 13437 /* 13438 * Check to see if we have any errors to inject here. We only 13439 * inject errors for commands that don't already have errors set. 13440 */ 13441 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13442 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13443 ctl_inject_error(lun, io); 13444 13445 /* 13446 * XXX KDM how do we treat commands that aren't completed 13447 * successfully? 13448 * 13449 * XXX KDM should we also track I/O latency? 13450 */ 13451 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13452 io->io_hdr.io_type == CTL_IO_SCSI) { 13453#ifdef CTL_TIME_IO 13454 struct bintime cur_bt; 13455#endif 13456 int type; 13457 13458 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13459 CTL_FLAG_DATA_IN) 13460 type = CTL_STATS_READ; 13461 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13462 CTL_FLAG_DATA_OUT) 13463 type = CTL_STATS_WRITE; 13464 else 13465 type = CTL_STATS_NO_IO; 13466 13467 lun->stats.ports[targ_port].bytes[type] += 13468 io->scsiio.kern_total_len; 13469 lun->stats.ports[targ_port].operations[type]++; 13470#ifdef CTL_TIME_IO 13471 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13472 &io->io_hdr.dma_bt); 13473 lun->stats.ports[targ_port].num_dmas[type] += 13474 io->io_hdr.num_dmas; 13475 getbintime(&cur_bt); 13476 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13477 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13478#endif 13479 } 13480 13481 /* 13482 * Remove this from the OOA queue. 13483 */ 13484 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13485 13486 /* 13487 * Run through the blocked queue on this LUN and see if anything 13488 * has become unblocked, now that this transaction is done. 13489 */ 13490 ctl_check_blocked(lun); 13491 13492 /* 13493 * If the LUN has been invalidated, free it if there is nothing 13494 * left on its OOA queue. 13495 */ 13496 if ((lun->flags & CTL_LUN_INVALID) 13497 && TAILQ_EMPTY(&lun->ooa_queue)) { 13498 mtx_unlock(&lun->lun_lock); 13499 mtx_lock(&ctl_softc->ctl_lock); 13500 ctl_free_lun(lun); 13501 mtx_unlock(&ctl_softc->ctl_lock); 13502 } else 13503 mtx_unlock(&lun->lun_lock); 13504 13505 /* 13506 * If this command has been aborted, make sure we set the status 13507 * properly. The FETD is responsible for freeing the I/O and doing 13508 * whatever it needs to do to clean up its state. 13509 */ 13510 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13511 ctl_set_task_aborted(&io->scsiio); 13512 13513 /* 13514 * We print out status for every task management command. For SCSI 13515 * commands, we filter out any unit attention errors; they happen 13516 * on every boot, and would clutter up the log. Note: task 13517 * management commands aren't printed here, they are printed above, 13518 * since they should never even make it down here. 13519 */ 13520 switch (io->io_hdr.io_type) { 13521 case CTL_IO_SCSI: { 13522 int error_code, sense_key, asc, ascq; 13523 13524 sense_key = 0; 13525 13526 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13527 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13528 /* 13529 * Since this is just for printing, no need to 13530 * show errors here. 13531 */ 13532 scsi_extract_sense_len(&io->scsiio.sense_data, 13533 io->scsiio.sense_len, 13534 &error_code, 13535 &sense_key, 13536 &asc, 13537 &ascq, 13538 /*show_errors*/ 0); 13539 } 13540 13541 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13542 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13543 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13544 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13545 13546 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13547 ctl_softc->skipped_prints++; 13548 } else { 13549 uint32_t skipped_prints; 13550 13551 skipped_prints = ctl_softc->skipped_prints; 13552 13553 ctl_softc->skipped_prints = 0; 13554 ctl_softc->last_print_jiffies = time_uptime; 13555 13556 if (skipped_prints > 0) { 13557#ifdef NEEDTOPORT 13558 csevent_log(CSC_CTL | CSC_SHELF_SW | 13559 CTL_ERROR_REPORT, 13560 csevent_LogType_Trace, 13561 csevent_Severity_Information, 13562 csevent_AlertLevel_Green, 13563 csevent_FRU_Firmware, 13564 csevent_FRU_Unknown, 13565 "High CTL error volume, %d prints " 13566 "skipped", skipped_prints); 13567#endif 13568 } 13569 if (bootverbose || verbose > 0) 13570 ctl_io_error_print(io, NULL); 13571 } 13572 } 13573 break; 13574 } 13575 case CTL_IO_TASK: 13576 if (bootverbose || verbose > 0) 13577 ctl_io_error_print(io, NULL); 13578 break; 13579 default: 13580 break; 13581 } 13582 13583 /* 13584 * Tell the FETD or the other shelf controller we're done with this 13585 * command. Note that only SCSI commands get to this point. Task 13586 * management commands are completed above. 13587 * 13588 * We only send status to the other controller if we're in XFER 13589 * mode. In SER_ONLY mode, the I/O is done on the controller that 13590 * received the I/O (from CTL's perspective), and so the status is 13591 * generated there. 13592 * 13593 * XXX KDM if we hold the lock here, we could cause a deadlock 13594 * if the frontend comes back in in this context to queue 13595 * something. 13596 */ 13597 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13598 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13599 union ctl_ha_msg msg; 13600 13601 memset(&msg, 0, sizeof(msg)); 13602 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13603 msg.hdr.original_sc = io->io_hdr.original_sc; 13604 msg.hdr.nexus = io->io_hdr.nexus; 13605 msg.hdr.status = io->io_hdr.status; 13606 msg.scsi.scsi_status = io->scsiio.scsi_status; 13607 msg.scsi.tag_num = io->scsiio.tag_num; 13608 msg.scsi.tag_type = io->scsiio.tag_type; 13609 msg.scsi.sense_len = io->scsiio.sense_len; 13610 msg.scsi.sense_residual = io->scsiio.sense_residual; 13611 msg.scsi.residual = io->scsiio.residual; 13612 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13613 sizeof(io->scsiio.sense_data)); 13614 /* 13615 * We copy this whether or not this is an I/O-related 13616 * command. Otherwise, we'd have to go and check to see 13617 * whether it's a read/write command, and it really isn't 13618 * worth it. 13619 */ 13620 memcpy(&msg.scsi.lbalen, 13621 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13622 sizeof(msg.scsi.lbalen)); 13623 13624 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13625 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13626 /* XXX do something here */ 13627 } 13628 13629 ctl_free_io(io); 13630 } else 13631 fe_done(io); 13632 13633bailout: 13634 13635 return (CTL_RETVAL_COMPLETE); 13636} 13637 13638/* 13639 * Front end should call this if it doesn't do autosense. When the request 13640 * sense comes back in from the initiator, we'll dequeue this and send it. 13641 */ 13642int 13643ctl_queue_sense(union ctl_io *io) 13644{ 13645 struct ctl_lun *lun; 13646 struct ctl_softc *ctl_softc; 13647 uint32_t initidx, targ_lun; 13648 13649 ctl_softc = control_softc; 13650 13651 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13652 13653 /* 13654 * LUN lookup will likely move to the ctl_work_thread() once we 13655 * have our new queueing infrastructure (that doesn't put things on 13656 * a per-LUN queue initially). That is so that we can handle 13657 * things like an INQUIRY to a LUN that we don't have enabled. We 13658 * can't deal with that right now. 13659 */ 13660 mtx_lock(&ctl_softc->ctl_lock); 13661 13662 /* 13663 * If we don't have a LUN for this, just toss the sense 13664 * information. 13665 */ 13666 targ_lun = io->io_hdr.nexus.targ_lun; 13667 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13668 if ((targ_lun < CTL_MAX_LUNS) 13669 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13670 lun = ctl_softc->ctl_luns[targ_lun]; 13671 else 13672 goto bailout; 13673 13674 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13675 13676 mtx_lock(&lun->lun_lock); 13677 /* 13678 * Already have CA set for this LUN...toss the sense information. 13679 */ 13680 if (ctl_is_set(lun->have_ca, initidx)) { 13681 mtx_unlock(&lun->lun_lock); 13682 goto bailout; 13683 } 13684 13685 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13686 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13687 sizeof(io->scsiio.sense_data))); 13688 ctl_set_mask(lun->have_ca, initidx); 13689 mtx_unlock(&lun->lun_lock); 13690 13691bailout: 13692 mtx_unlock(&ctl_softc->ctl_lock); 13693 13694 ctl_free_io(io); 13695 13696 return (CTL_RETVAL_COMPLETE); 13697} 13698 13699/* 13700 * Primary command inlet from frontend ports. All SCSI and task I/O 13701 * requests must go through this function. 13702 */ 13703int 13704ctl_queue(union ctl_io *io) 13705{ 13706 struct ctl_softc *ctl_softc; 13707 13708 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13709 13710 ctl_softc = control_softc; 13711 13712#ifdef CTL_TIME_IO 13713 io->io_hdr.start_time = time_uptime; 13714 getbintime(&io->io_hdr.start_bt); 13715#endif /* CTL_TIME_IO */ 13716 13717 /* Map FE-specific LUN ID into global one. */ 13718 io->io_hdr.nexus.targ_mapped_lun = 13719 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13720 13721 switch (io->io_hdr.io_type) { 13722 case CTL_IO_SCSI: 13723 case CTL_IO_TASK: 13724 ctl_enqueue_incoming(io); 13725 break; 13726 default: 13727 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13728 return (EINVAL); 13729 } 13730 13731 return (CTL_RETVAL_COMPLETE); 13732} 13733 13734#ifdef CTL_IO_DELAY 13735static void 13736ctl_done_timer_wakeup(void *arg) 13737{ 13738 union ctl_io *io; 13739 13740 io = (union ctl_io *)arg; 13741 ctl_done(io); 13742} 13743#endif /* CTL_IO_DELAY */ 13744 13745void 13746ctl_done(union ctl_io *io) 13747{ 13748 struct ctl_softc *ctl_softc; 13749 13750 ctl_softc = control_softc; 13751 13752 /* 13753 * Enable this to catch duplicate completion issues. 13754 */ 13755#if 0 13756 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13757 printf("%s: type %d msg %d cdb %x iptl: " 13758 "%d:%d:%d:%d tag 0x%04x " 13759 "flag %#x status %x\n", 13760 __func__, 13761 io->io_hdr.io_type, 13762 io->io_hdr.msg_type, 13763 io->scsiio.cdb[0], 13764 io->io_hdr.nexus.initid.id, 13765 io->io_hdr.nexus.targ_port, 13766 io->io_hdr.nexus.targ_target.id, 13767 io->io_hdr.nexus.targ_lun, 13768 (io->io_hdr.io_type == 13769 CTL_IO_TASK) ? 13770 io->taskio.tag_num : 13771 io->scsiio.tag_num, 13772 io->io_hdr.flags, 13773 io->io_hdr.status); 13774 } else 13775 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13776#endif 13777 13778 /* 13779 * This is an internal copy of an I/O, and should not go through 13780 * the normal done processing logic. 13781 */ 13782 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13783 return; 13784 13785 /* 13786 * We need to send a msg to the serializing shelf to finish the IO 13787 * as well. We don't send a finish message to the other shelf if 13788 * this is a task management command. Task management commands 13789 * aren't serialized in the OOA queue, but rather just executed on 13790 * both shelf controllers for commands that originated on that 13791 * controller. 13792 */ 13793 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13794 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13795 union ctl_ha_msg msg_io; 13796 13797 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13798 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13799 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13800 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13801 } 13802 /* continue on to finish IO */ 13803 } 13804#ifdef CTL_IO_DELAY 13805 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13806 struct ctl_lun *lun; 13807 13808 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13809 13810 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13811 } else { 13812 struct ctl_lun *lun; 13813 13814 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13815 13816 if ((lun != NULL) 13817 && (lun->delay_info.done_delay > 0)) { 13818 struct callout *callout; 13819 13820 callout = (struct callout *)&io->io_hdr.timer_bytes; 13821 callout_init(callout, /*mpsafe*/ 1); 13822 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13823 callout_reset(callout, 13824 lun->delay_info.done_delay * hz, 13825 ctl_done_timer_wakeup, io); 13826 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13827 lun->delay_info.done_delay = 0; 13828 return; 13829 } 13830 } 13831#endif /* CTL_IO_DELAY */ 13832 13833 ctl_enqueue_done(io); 13834} 13835 13836int 13837ctl_isc(struct ctl_scsiio *ctsio) 13838{ 13839 struct ctl_lun *lun; 13840 int retval; 13841 13842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13843 13844 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13845 13846 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13847 13848 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13849 13850 return (retval); 13851} 13852 13853 13854static void 13855ctl_work_thread(void *arg) 13856{ 13857 struct ctl_thread *thr = (struct ctl_thread *)arg; 13858 struct ctl_softc *softc = thr->ctl_softc; 13859 union ctl_io *io; 13860 int retval; 13861 13862 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13863 13864 for (;;) { 13865 retval = 0; 13866 13867 /* 13868 * We handle the queues in this order: 13869 * - ISC 13870 * - done queue (to free up resources, unblock other commands) 13871 * - RtR queue 13872 * - incoming queue 13873 * 13874 * If those queues are empty, we break out of the loop and 13875 * go to sleep. 13876 */ 13877 mtx_lock(&thr->queue_lock); 13878 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13879 if (io != NULL) { 13880 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13881 mtx_unlock(&thr->queue_lock); 13882 ctl_handle_isc(io); 13883 continue; 13884 } 13885 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13886 if (io != NULL) { 13887 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13888 /* clear any blocked commands, call fe_done */ 13889 mtx_unlock(&thr->queue_lock); 13890 retval = ctl_process_done(io); 13891 continue; 13892 } 13893 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13894 if (io != NULL) { 13895 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13896 mtx_unlock(&thr->queue_lock); 13897 if (io->io_hdr.io_type == CTL_IO_TASK) 13898 ctl_run_task(io); 13899 else 13900 ctl_scsiio_precheck(softc, &io->scsiio); 13901 continue; 13902 } 13903 if (!ctl_pause_rtr) { 13904 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13905 if (io != NULL) { 13906 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13907 mtx_unlock(&thr->queue_lock); 13908 retval = ctl_scsiio(&io->scsiio); 13909 if (retval != CTL_RETVAL_COMPLETE) 13910 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13911 continue; 13912 } 13913 } 13914 13915 /* Sleep until we have something to do. */ 13916 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13917 } 13918} 13919 13920static void 13921ctl_lun_thread(void *arg) 13922{ 13923 struct ctl_softc *softc = (struct ctl_softc *)arg; 13924 struct ctl_be_lun *be_lun; 13925 int retval; 13926 13927 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13928 13929 for (;;) { 13930 retval = 0; 13931 mtx_lock(&softc->ctl_lock); 13932 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13933 if (be_lun != NULL) { 13934 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13935 mtx_unlock(&softc->ctl_lock); 13936 ctl_create_lun(be_lun); 13937 continue; 13938 } 13939 13940 /* Sleep until we have something to do. */ 13941 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13942 PDROP | PRIBIO, "-", 0); 13943 } 13944} 13945 13946static void 13947ctl_enqueue_incoming(union ctl_io *io) 13948{ 13949 struct ctl_softc *softc = control_softc; 13950 struct ctl_thread *thr; 13951 u_int idx; 13952 13953 idx = (io->io_hdr.nexus.targ_port * 127 + 13954 io->io_hdr.nexus.initid.id) % worker_threads; 13955 thr = &softc->threads[idx]; 13956 mtx_lock(&thr->queue_lock); 13957 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13958 mtx_unlock(&thr->queue_lock); 13959 wakeup(thr); 13960} 13961 13962static void 13963ctl_enqueue_rtr(union ctl_io *io) 13964{ 13965 struct ctl_softc *softc = control_softc; 13966 struct ctl_thread *thr; 13967 13968 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13969 mtx_lock(&thr->queue_lock); 13970 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13971 mtx_unlock(&thr->queue_lock); 13972 wakeup(thr); 13973} 13974 13975static void 13976ctl_enqueue_done(union ctl_io *io) 13977{ 13978 struct ctl_softc *softc = control_softc; 13979 struct ctl_thread *thr; 13980 13981 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13982 mtx_lock(&thr->queue_lock); 13983 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13984 mtx_unlock(&thr->queue_lock); 13985 wakeup(thr); 13986} 13987 13988static void 13989ctl_enqueue_isc(union ctl_io *io) 13990{ 13991 struct ctl_softc *softc = control_softc; 13992 struct ctl_thread *thr; 13993 13994 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13995 mtx_lock(&thr->queue_lock); 13996 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13997 mtx_unlock(&thr->queue_lock); 13998 wakeup(thr); 13999} 14000 14001/* Initialization and failover */ 14002 14003void 14004ctl_init_isc_msg(void) 14005{ 14006 printf("CTL: Still calling this thing\n"); 14007} 14008 14009/* 14010 * Init component 14011 * Initializes component into configuration defined by bootMode 14012 * (see hasc-sv.c) 14013 * returns hasc_Status: 14014 * OK 14015 * ERROR - fatal error 14016 */ 14017static ctl_ha_comp_status 14018ctl_isc_init(struct ctl_ha_component *c) 14019{ 14020 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14021 14022 c->status = ret; 14023 return ret; 14024} 14025 14026/* Start component 14027 * Starts component in state requested. If component starts successfully, 14028 * it must set its own state to the requestrd state 14029 * When requested state is HASC_STATE_HA, the component may refine it 14030 * by adding _SLAVE or _MASTER flags. 14031 * Currently allowed state transitions are: 14032 * UNKNOWN->HA - initial startup 14033 * UNKNOWN->SINGLE - initial startup when no parter detected 14034 * HA->SINGLE - failover 14035 * returns ctl_ha_comp_status: 14036 * OK - component successfully started in requested state 14037 * FAILED - could not start the requested state, failover may 14038 * be possible 14039 * ERROR - fatal error detected, no future startup possible 14040 */ 14041static ctl_ha_comp_status 14042ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14043{ 14044 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14045 14046 printf("%s: go\n", __func__); 14047 14048 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14049 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14050 ctl_is_single = 0; 14051 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14052 != CTL_HA_STATUS_SUCCESS) { 14053 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14054 ret = CTL_HA_COMP_STATUS_ERROR; 14055 } 14056 } else if (CTL_HA_STATE_IS_HA(c->state) 14057 && CTL_HA_STATE_IS_SINGLE(state)){ 14058 // HA->SINGLE transition 14059 ctl_failover(); 14060 ctl_is_single = 1; 14061 } else { 14062 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14063 c->state, state); 14064 ret = CTL_HA_COMP_STATUS_ERROR; 14065 } 14066 if (CTL_HA_STATE_IS_SINGLE(state)) 14067 ctl_is_single = 1; 14068 14069 c->state = state; 14070 c->status = ret; 14071 return ret; 14072} 14073 14074/* 14075 * Quiesce component 14076 * The component must clear any error conditions (set status to OK) and 14077 * prepare itself to another Start call 14078 * returns ctl_ha_comp_status: 14079 * OK 14080 * ERROR 14081 */ 14082static ctl_ha_comp_status 14083ctl_isc_quiesce(struct ctl_ha_component *c) 14084{ 14085 int ret = CTL_HA_COMP_STATUS_OK; 14086 14087 ctl_pause_rtr = 1; 14088 c->status = ret; 14089 return ret; 14090} 14091 14092struct ctl_ha_component ctl_ha_component_ctlisc = 14093{ 14094 .name = "CTL ISC", 14095 .state = CTL_HA_STATE_UNKNOWN, 14096 .init = ctl_isc_init, 14097 .start = ctl_isc_start, 14098 .quiesce = ctl_isc_quiesce 14099}; 14100 14101/* 14102 * vim: ts=8 14103 */ 14104