ctl.c revision 276616
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 276616 2015-01-03 13:11:39Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114const static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124const static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133const static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161const static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178const static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194const static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227const static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243const static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259const static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271const static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283const static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292const static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 365 &worker_threads, 1, "Number of worker threads"); 366static int ctl_debug = CTL_DEBUG_NONE; 367TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 368SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 369 &ctl_debug, 0, "Enabled debug flags"); 370 371/* 372 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 373 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 374 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 375 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 376 */ 377#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 378 379static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 380 int param); 381static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 382static int ctl_init(void); 383void ctl_shutdown(void); 384static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 385static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 386static void ctl_ioctl_online(void *arg); 387static void ctl_ioctl_offline(void *arg); 388static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 389static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 390static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 391static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 392static int ctl_ioctl_submit_wait(union ctl_io *io); 393static void ctl_ioctl_datamove(union ctl_io *io); 394static void ctl_ioctl_done(union ctl_io *io); 395static void ctl_ioctl_hard_startstop_callback(void *arg, 396 struct cfi_metatask *metatask); 397static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 398static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 399 struct ctl_ooa *ooa_hdr, 400 struct ctl_ooa_entry *kern_entries); 401static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 402 struct thread *td); 403static uint32_t ctl_map_lun(struct ctl_softc *softc, int port_num, uint32_t lun); 404static uint32_t ctl_map_lun_back(struct ctl_softc *softc, int port_num, uint32_t lun); 405static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 406 struct ctl_be_lun *be_lun, struct ctl_id target_id); 407static int ctl_free_lun(struct ctl_lun *lun); 408static void ctl_create_lun(struct ctl_be_lun *be_lun); 409/** 410static void ctl_failover_change_pages(struct ctl_softc *softc, 411 struct ctl_scsiio *ctsio, int master); 412**/ 413 414static int ctl_do_mode_select(union ctl_io *io); 415static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 416 uint64_t res_key, uint64_t sa_res_key, 417 uint8_t type, uint32_t residx, 418 struct ctl_scsiio *ctsio, 419 struct scsi_per_res_out *cdb, 420 struct scsi_per_res_out_parms* param); 421static void ctl_pro_preempt_other(struct ctl_lun *lun, 422 union ctl_ha_msg *msg); 423static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 424static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 427static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 428static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 429static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 430 int alloc_len); 431static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 432 int alloc_len); 433static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 435static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 436static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 437static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 438static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 439 bool seq); 440static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 441static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 442 union ctl_io *pending_io, union ctl_io *ooa_io); 443static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 444 union ctl_io *starting_io); 445static int ctl_check_blocked(struct ctl_lun *lun); 446static int ctl_scsiio_lun_check(struct ctl_lun *lun, 447 const struct ctl_cmd_entry *entry, 448 struct ctl_scsiio *ctsio); 449//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 450static void ctl_failover(void); 451static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 452 struct ctl_scsiio *ctsio); 453static int ctl_scsiio(struct ctl_scsiio *ctsio); 454 455static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 456static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 457 ctl_ua_type ua_type); 458static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 459 ctl_ua_type ua_type); 460static int ctl_abort_task(union ctl_io *io); 461static int ctl_abort_task_set(union ctl_io *io); 462static int ctl_i_t_nexus_reset(union ctl_io *io); 463static void ctl_run_task(union ctl_io *io); 464#ifdef CTL_IO_DELAY 465static void ctl_datamove_timer_wakeup(void *arg); 466static void ctl_done_timer_wakeup(void *arg); 467#endif /* CTL_IO_DELAY */ 468 469static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 470static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 471static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 472static void ctl_datamove_remote_write(union ctl_io *io); 473static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 474static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 475static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 476static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 477 ctl_ha_dt_cb callback); 478static void ctl_datamove_remote_read(union ctl_io *io); 479static void ctl_datamove_remote(union ctl_io *io); 480static int ctl_process_done(union ctl_io *io); 481static void ctl_lun_thread(void *arg); 482static void ctl_thresh_thread(void *arg); 483static void ctl_work_thread(void *arg); 484static void ctl_enqueue_incoming(union ctl_io *io); 485static void ctl_enqueue_rtr(union ctl_io *io); 486static void ctl_enqueue_done(union ctl_io *io); 487static void ctl_enqueue_isc(union ctl_io *io); 488static const struct ctl_cmd_entry * 489 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 490static const struct ctl_cmd_entry * 491 ctl_validate_command(struct ctl_scsiio *ctsio); 492static int ctl_cmd_applicable(uint8_t lun_type, 493 const struct ctl_cmd_entry *entry); 494 495/* 496 * Load the serialization table. This isn't very pretty, but is probably 497 * the easiest way to do it. 498 */ 499#include "ctl_ser_table.c" 500 501/* 502 * We only need to define open, close and ioctl routines for this driver. 503 */ 504static struct cdevsw ctl_cdevsw = { 505 .d_version = D_VERSION, 506 .d_flags = 0, 507 .d_open = ctl_open, 508 .d_close = ctl_close, 509 .d_ioctl = ctl_ioctl, 510 .d_name = "ctl", 511}; 512 513 514MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 515MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 516 517static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 518 519static moduledata_t ctl_moduledata = { 520 "ctl", 521 ctl_module_event_handler, 522 NULL 523}; 524 525DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 526MODULE_VERSION(ctl, 1); 527 528static struct ctl_frontend ioctl_frontend = 529{ 530 .name = "ioctl", 531}; 532 533static void 534ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 535 union ctl_ha_msg *msg_info) 536{ 537 struct ctl_scsiio *ctsio; 538 539 if (msg_info->hdr.original_sc == NULL) { 540 printf("%s: original_sc == NULL!\n", __func__); 541 /* XXX KDM now what? */ 542 return; 543 } 544 545 ctsio = &msg_info->hdr.original_sc->scsiio; 546 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 547 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 548 ctsio->io_hdr.status = msg_info->hdr.status; 549 ctsio->scsi_status = msg_info->scsi.scsi_status; 550 ctsio->sense_len = msg_info->scsi.sense_len; 551 ctsio->sense_residual = msg_info->scsi.sense_residual; 552 ctsio->residual = msg_info->scsi.residual; 553 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 554 sizeof(ctsio->sense_data)); 555 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 556 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 557 ctl_enqueue_isc((union ctl_io *)ctsio); 558} 559 560static void 561ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 562 union ctl_ha_msg *msg_info) 563{ 564 struct ctl_scsiio *ctsio; 565 566 if (msg_info->hdr.serializing_sc == NULL) { 567 printf("%s: serializing_sc == NULL!\n", __func__); 568 /* XXX KDM now what? */ 569 return; 570 } 571 572 ctsio = &msg_info->hdr.serializing_sc->scsiio; 573#if 0 574 /* 575 * Attempt to catch the situation where an I/O has 576 * been freed, and we're using it again. 577 */ 578 if (ctsio->io_hdr.io_type == 0xff) { 579 union ctl_io *tmp_io; 580 tmp_io = (union ctl_io *)ctsio; 581 printf("%s: %p use after free!\n", __func__, 582 ctsio); 583 printf("%s: type %d msg %d cdb %x iptl: " 584 "%d:%d:%d:%d tag 0x%04x " 585 "flag %#x status %x\n", 586 __func__, 587 tmp_io->io_hdr.io_type, 588 tmp_io->io_hdr.msg_type, 589 tmp_io->scsiio.cdb[0], 590 tmp_io->io_hdr.nexus.initid.id, 591 tmp_io->io_hdr.nexus.targ_port, 592 tmp_io->io_hdr.nexus.targ_target.id, 593 tmp_io->io_hdr.nexus.targ_lun, 594 (tmp_io->io_hdr.io_type == 595 CTL_IO_TASK) ? 596 tmp_io->taskio.tag_num : 597 tmp_io->scsiio.tag_num, 598 tmp_io->io_hdr.flags, 599 tmp_io->io_hdr.status); 600 } 601#endif 602 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 603 ctl_enqueue_isc((union ctl_io *)ctsio); 604} 605 606/* 607 * ISC (Inter Shelf Communication) event handler. Events from the HA 608 * subsystem come in here. 609 */ 610static void 611ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 612{ 613 struct ctl_softc *softc; 614 union ctl_io *io; 615 struct ctl_prio *presio; 616 ctl_ha_status isc_status; 617 618 softc = control_softc; 619 io = NULL; 620 621 622#if 0 623 printf("CTL: Isc Msg event %d\n", event); 624#endif 625 if (event == CTL_HA_EVT_MSG_RECV) { 626 union ctl_ha_msg msg_info; 627 628 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 629 sizeof(msg_info), /*wait*/ 0); 630#if 0 631 printf("CTL: msg_type %d\n", msg_info.msg_type); 632#endif 633 if (isc_status != 0) { 634 printf("Error receiving message, status = %d\n", 635 isc_status); 636 return; 637 } 638 639 switch (msg_info.hdr.msg_type) { 640 case CTL_MSG_SERIALIZE: 641#if 0 642 printf("Serialize\n"); 643#endif 644 io = ctl_alloc_io_nowait(softc->othersc_pool); 645 if (io == NULL) { 646 printf("ctl_isc_event_handler: can't allocate " 647 "ctl_io!\n"); 648 /* Bad Juju */ 649 /* Need to set busy and send msg back */ 650 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 651 msg_info.hdr.status = CTL_SCSI_ERROR; 652 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 653 msg_info.scsi.sense_len = 0; 654 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 655 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 656 } 657 goto bailout; 658 } 659 ctl_zero_io(io); 660 // populate ctsio from msg_info 661 io->io_hdr.io_type = CTL_IO_SCSI; 662 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 663 io->io_hdr.original_sc = msg_info.hdr.original_sc; 664#if 0 665 printf("pOrig %x\n", (int)msg_info.original_sc); 666#endif 667 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 668 CTL_FLAG_IO_ACTIVE; 669 /* 670 * If we're in serialization-only mode, we don't 671 * want to go through full done processing. Thus 672 * the COPY flag. 673 * 674 * XXX KDM add another flag that is more specific. 675 */ 676 if (softc->ha_mode == CTL_HA_MODE_SER_ONLY) 677 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 678 io->io_hdr.nexus = msg_info.hdr.nexus; 679#if 0 680 printf("targ %d, port %d, iid %d, lun %d\n", 681 io->io_hdr.nexus.targ_target.id, 682 io->io_hdr.nexus.targ_port, 683 io->io_hdr.nexus.initid.id, 684 io->io_hdr.nexus.targ_lun); 685#endif 686 io->scsiio.tag_num = msg_info.scsi.tag_num; 687 io->scsiio.tag_type = msg_info.scsi.tag_type; 688 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 689 CTL_MAX_CDBLEN); 690 if (softc->ha_mode == CTL_HA_MODE_XFER) { 691 const struct ctl_cmd_entry *entry; 692 693 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 694 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 695 io->io_hdr.flags |= 696 entry->flags & CTL_FLAG_DATA_MASK; 697 } 698 ctl_enqueue_isc(io); 699 break; 700 701 /* Performed on the Originating SC, XFER mode only */ 702 case CTL_MSG_DATAMOVE: { 703 struct ctl_sg_entry *sgl; 704 int i, j; 705 706 io = msg_info.hdr.original_sc; 707 if (io == NULL) { 708 printf("%s: original_sc == NULL!\n", __func__); 709 /* XXX KDM do something here */ 710 break; 711 } 712 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 713 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 714 /* 715 * Keep track of this, we need to send it back over 716 * when the datamove is complete. 717 */ 718 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 719 720 if (msg_info.dt.sg_sequence == 0) { 721 /* 722 * XXX KDM we use the preallocated S/G list 723 * here, but we'll need to change this to 724 * dynamic allocation if we need larger S/G 725 * lists. 726 */ 727 if (msg_info.dt.kern_sg_entries > 728 sizeof(io->io_hdr.remote_sglist) / 729 sizeof(io->io_hdr.remote_sglist[0])) { 730 printf("%s: number of S/G entries " 731 "needed %u > allocated num %zd\n", 732 __func__, 733 msg_info.dt.kern_sg_entries, 734 sizeof(io->io_hdr.remote_sglist)/ 735 sizeof(io->io_hdr.remote_sglist[0])); 736 737 /* 738 * XXX KDM send a message back to 739 * the other side to shut down the 740 * DMA. The error will come back 741 * through via the normal channel. 742 */ 743 break; 744 } 745 sgl = io->io_hdr.remote_sglist; 746 memset(sgl, 0, 747 sizeof(io->io_hdr.remote_sglist)); 748 749 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 750 751 io->scsiio.kern_sg_entries = 752 msg_info.dt.kern_sg_entries; 753 io->scsiio.rem_sg_entries = 754 msg_info.dt.kern_sg_entries; 755 io->scsiio.kern_data_len = 756 msg_info.dt.kern_data_len; 757 io->scsiio.kern_total_len = 758 msg_info.dt.kern_total_len; 759 io->scsiio.kern_data_resid = 760 msg_info.dt.kern_data_resid; 761 io->scsiio.kern_rel_offset = 762 msg_info.dt.kern_rel_offset; 763 /* 764 * Clear out per-DMA flags. 765 */ 766 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 767 /* 768 * Add per-DMA flags that are set for this 769 * particular DMA request. 770 */ 771 io->io_hdr.flags |= msg_info.dt.flags & 772 CTL_FLAG_RDMA_MASK; 773 } else 774 sgl = (struct ctl_sg_entry *) 775 io->scsiio.kern_data_ptr; 776 777 for (i = msg_info.dt.sent_sg_entries, j = 0; 778 i < (msg_info.dt.sent_sg_entries + 779 msg_info.dt.cur_sg_entries); i++, j++) { 780 sgl[i].addr = msg_info.dt.sg_list[j].addr; 781 sgl[i].len = msg_info.dt.sg_list[j].len; 782 783#if 0 784 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 785 __func__, 786 msg_info.dt.sg_list[j].addr, 787 msg_info.dt.sg_list[j].len, 788 sgl[i].addr, sgl[i].len, j, i); 789#endif 790 } 791#if 0 792 memcpy(&sgl[msg_info.dt.sent_sg_entries], 793 msg_info.dt.sg_list, 794 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 795#endif 796 797 /* 798 * If this is the last piece of the I/O, we've got 799 * the full S/G list. Queue processing in the thread. 800 * Otherwise wait for the next piece. 801 */ 802 if (msg_info.dt.sg_last != 0) 803 ctl_enqueue_isc(io); 804 break; 805 } 806 /* Performed on the Serializing (primary) SC, XFER mode only */ 807 case CTL_MSG_DATAMOVE_DONE: { 808 if (msg_info.hdr.serializing_sc == NULL) { 809 printf("%s: serializing_sc == NULL!\n", 810 __func__); 811 /* XXX KDM now what? */ 812 break; 813 } 814 /* 815 * We grab the sense information here in case 816 * there was a failure, so we can return status 817 * back to the initiator. 818 */ 819 io = msg_info.hdr.serializing_sc; 820 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 821 io->io_hdr.status = msg_info.hdr.status; 822 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 823 io->scsiio.sense_len = msg_info.scsi.sense_len; 824 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 825 io->io_hdr.port_status = msg_info.scsi.fetd_status; 826 io->scsiio.residual = msg_info.scsi.residual; 827 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 828 sizeof(io->scsiio.sense_data)); 829 ctl_enqueue_isc(io); 830 break; 831 } 832 833 /* Preformed on Originating SC, SER_ONLY mode */ 834 case CTL_MSG_R2R: 835 io = msg_info.hdr.original_sc; 836 if (io == NULL) { 837 printf("%s: Major Bummer\n", __func__); 838 return; 839 } else { 840#if 0 841 printf("pOrig %x\n",(int) ctsio); 842#endif 843 } 844 io->io_hdr.msg_type = CTL_MSG_R2R; 845 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 846 ctl_enqueue_isc(io); 847 break; 848 849 /* 850 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 851 * mode. 852 * Performed on the Originating (i.e. secondary) SC in XFER 853 * mode 854 */ 855 case CTL_MSG_FINISH_IO: 856 if (softc->ha_mode == CTL_HA_MODE_XFER) 857 ctl_isc_handler_finish_xfer(softc, 858 &msg_info); 859 else 860 ctl_isc_handler_finish_ser_only(softc, 861 &msg_info); 862 break; 863 864 /* Preformed on Originating SC */ 865 case CTL_MSG_BAD_JUJU: 866 io = msg_info.hdr.original_sc; 867 if (io == NULL) { 868 printf("%s: Bad JUJU!, original_sc is NULL!\n", 869 __func__); 870 break; 871 } 872 ctl_copy_sense_data(&msg_info, io); 873 /* 874 * IO should have already been cleaned up on other 875 * SC so clear this flag so we won't send a message 876 * back to finish the IO there. 877 */ 878 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 879 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 880 881 /* io = msg_info.hdr.serializing_sc; */ 882 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 883 ctl_enqueue_isc(io); 884 break; 885 886 /* Handle resets sent from the other side */ 887 case CTL_MSG_MANAGE_TASKS: { 888 struct ctl_taskio *taskio; 889 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 890 softc->othersc_pool); 891 if (taskio == NULL) { 892 printf("ctl_isc_event_handler: can't allocate " 893 "ctl_io!\n"); 894 /* Bad Juju */ 895 /* should I just call the proper reset func 896 here??? */ 897 goto bailout; 898 } 899 ctl_zero_io((union ctl_io *)taskio); 900 taskio->io_hdr.io_type = CTL_IO_TASK; 901 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 902 taskio->io_hdr.nexus = msg_info.hdr.nexus; 903 taskio->task_action = msg_info.task.task_action; 904 taskio->tag_num = msg_info.task.tag_num; 905 taskio->tag_type = msg_info.task.tag_type; 906#ifdef CTL_TIME_IO 907 taskio->io_hdr.start_time = time_uptime; 908 getbintime(&taskio->io_hdr.start_bt); 909#if 0 910 cs_prof_gettime(&taskio->io_hdr.start_ticks); 911#endif 912#endif /* CTL_TIME_IO */ 913 ctl_run_task((union ctl_io *)taskio); 914 break; 915 } 916 /* Persistent Reserve action which needs attention */ 917 case CTL_MSG_PERS_ACTION: 918 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 919 softc->othersc_pool); 920 if (presio == NULL) { 921 printf("ctl_isc_event_handler: can't allocate " 922 "ctl_io!\n"); 923 /* Bad Juju */ 924 /* Need to set busy and send msg back */ 925 goto bailout; 926 } 927 ctl_zero_io((union ctl_io *)presio); 928 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 929 presio->pr_msg = msg_info.pr; 930 ctl_enqueue_isc((union ctl_io *)presio); 931 break; 932 case CTL_MSG_SYNC_FE: 933 rcv_sync_msg = 1; 934 break; 935 default: 936 printf("How did I get here?\n"); 937 } 938 } else if (event == CTL_HA_EVT_MSG_SENT) { 939 if (param != CTL_HA_STATUS_SUCCESS) { 940 printf("Bad status from ctl_ha_msg_send status %d\n", 941 param); 942 } 943 return; 944 } else if (event == CTL_HA_EVT_DISCONNECT) { 945 printf("CTL: Got a disconnect from Isc\n"); 946 return; 947 } else { 948 printf("ctl_isc_event_handler: Unknown event %d\n", event); 949 return; 950 } 951 952bailout: 953 return; 954} 955 956static void 957ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 958{ 959 struct scsi_sense_data *sense; 960 961 sense = &dest->scsiio.sense_data; 962 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 963 dest->scsiio.scsi_status = src->scsi.scsi_status; 964 dest->scsiio.sense_len = src->scsi.sense_len; 965 dest->io_hdr.status = src->hdr.status; 966} 967 968static void 969ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 970{ 971 ctl_ua_type *pu; 972 973 mtx_assert(&lun->lun_lock, MA_OWNED); 974 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 975 if (pu == NULL) 976 return; 977 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 978} 979 980static void 981ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 982{ 983 int i, j; 984 985 mtx_assert(&lun->lun_lock, MA_OWNED); 986 for (i = 0; i < CTL_MAX_PORTS; i++) { 987 if (lun->pending_ua[i] == NULL) 988 continue; 989 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 990 if (i * CTL_MAX_INIT_PER_PORT + j == except) 991 continue; 992 lun->pending_ua[i][j] |= ua; 993 } 994 } 995} 996 997static void 998ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 999{ 1000 ctl_ua_type *pu; 1001 1002 mtx_assert(&lun->lun_lock, MA_OWNED); 1003 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1004 if (pu == NULL) 1005 return; 1006 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1007} 1008 1009static void 1010ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1011{ 1012 int i, j; 1013 1014 mtx_assert(&lun->lun_lock, MA_OWNED); 1015 for (i = 0; i < CTL_MAX_PORTS; i++) { 1016 if (lun->pending_ua[i] == NULL) 1017 continue; 1018 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1019 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1020 continue; 1021 lun->pending_ua[i][j] &= ~ua; 1022 } 1023 } 1024} 1025 1026static int 1027ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1028{ 1029 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1030 struct ctl_lun *lun; 1031 int error, value; 1032 1033 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1034 value = 0; 1035 else 1036 value = 1; 1037 1038 error = sysctl_handle_int(oidp, &value, 0, req); 1039 if ((error != 0) || (req->newptr == NULL)) 1040 return (error); 1041 1042 mtx_lock(&softc->ctl_lock); 1043 if (value == 0) 1044 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1045 else 1046 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1047 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1048 mtx_lock(&lun->lun_lock); 1049 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1050 mtx_unlock(&lun->lun_lock); 1051 } 1052 mtx_unlock(&softc->ctl_lock); 1053 return (0); 1054} 1055 1056static int 1057ctl_init(void) 1058{ 1059 struct ctl_softc *softc; 1060 void *other_pool; 1061 struct ctl_port *port; 1062 int i, error, retval; 1063 //int isc_retval; 1064 1065 retval = 0; 1066 ctl_pause_rtr = 0; 1067 rcv_sync_msg = 0; 1068 1069 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1070 M_WAITOK | M_ZERO); 1071 softc = control_softc; 1072 1073 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1074 "cam/ctl"); 1075 1076 softc->dev->si_drv1 = softc; 1077 1078 /* 1079 * By default, return a "bad LUN" peripheral qualifier for unknown 1080 * LUNs. The user can override this default using the tunable or 1081 * sysctl. See the comment in ctl_inquiry_std() for more details. 1082 */ 1083 softc->inquiry_pq_no_lun = 1; 1084 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1085 &softc->inquiry_pq_no_lun); 1086 sysctl_ctx_init(&softc->sysctl_ctx); 1087 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1088 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1089 CTLFLAG_RD, 0, "CAM Target Layer"); 1090 1091 if (softc->sysctl_tree == NULL) { 1092 printf("%s: unable to allocate sysctl tree\n", __func__); 1093 destroy_dev(softc->dev); 1094 free(control_softc, M_DEVBUF); 1095 control_softc = NULL; 1096 return (ENOMEM); 1097 } 1098 1099 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1100 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1101 "inquiry_pq_no_lun", CTLFLAG_RW, 1102 &softc->inquiry_pq_no_lun, 0, 1103 "Report no lun possible for invalid LUNs"); 1104 1105 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1106 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1107 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1108 softc->open_count = 0; 1109 1110 /* 1111 * Default to actually sending a SYNCHRONIZE CACHE command down to 1112 * the drive. 1113 */ 1114 softc->flags = CTL_FLAG_REAL_SYNC; 1115 1116 /* 1117 * In Copan's HA scheme, the "master" and "slave" roles are 1118 * figured out through the slot the controller is in. Although it 1119 * is an active/active system, someone has to be in charge. 1120 */ 1121 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1122 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1123 "HA head ID (0 - no HA)"); 1124 if (softc->ha_id == 0) { 1125 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1126 softc->is_single = 1; 1127 softc->port_offset = 0; 1128 } else 1129 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1130 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1131 1132 /* 1133 * XXX KDM need to figure out where we want to get our target ID 1134 * and WWID. Is it different on each port? 1135 */ 1136 softc->target.id = 0; 1137 softc->target.wwid[0] = 0x12345678; 1138 softc->target.wwid[1] = 0x87654321; 1139 STAILQ_INIT(&softc->lun_list); 1140 STAILQ_INIT(&softc->pending_lun_queue); 1141 STAILQ_INIT(&softc->fe_list); 1142 STAILQ_INIT(&softc->port_list); 1143 STAILQ_INIT(&softc->be_list); 1144 ctl_tpc_init(softc); 1145 1146 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1147 &other_pool) != 0) 1148 { 1149 printf("ctl: can't allocate %d entry other SC pool, " 1150 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1151 return (ENOMEM); 1152 } 1153 softc->othersc_pool = other_pool; 1154 1155 if (worker_threads <= 0) 1156 worker_threads = max(1, mp_ncpus / 4); 1157 if (worker_threads > CTL_MAX_THREADS) 1158 worker_threads = CTL_MAX_THREADS; 1159 1160 for (i = 0; i < worker_threads; i++) { 1161 struct ctl_thread *thr = &softc->threads[i]; 1162 1163 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1164 thr->ctl_softc = softc; 1165 STAILQ_INIT(&thr->incoming_queue); 1166 STAILQ_INIT(&thr->rtr_queue); 1167 STAILQ_INIT(&thr->done_queue); 1168 STAILQ_INIT(&thr->isc_queue); 1169 1170 error = kproc_kthread_add(ctl_work_thread, thr, 1171 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1172 if (error != 0) { 1173 printf("error creating CTL work thread!\n"); 1174 ctl_pool_free(other_pool); 1175 return (error); 1176 } 1177 } 1178 error = kproc_kthread_add(ctl_lun_thread, softc, 1179 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1180 if (error != 0) { 1181 printf("error creating CTL lun thread!\n"); 1182 ctl_pool_free(other_pool); 1183 return (error); 1184 } 1185 error = kproc_kthread_add(ctl_thresh_thread, softc, 1186 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1187 if (error != 0) { 1188 printf("error creating CTL threshold thread!\n"); 1189 ctl_pool_free(other_pool); 1190 return (error); 1191 } 1192 if (bootverbose) 1193 printf("ctl: CAM Target Layer loaded\n"); 1194 1195 /* 1196 * Initialize the ioctl front end. 1197 */ 1198 ctl_frontend_register(&ioctl_frontend); 1199 port = &softc->ioctl_info.port; 1200 port->frontend = &ioctl_frontend; 1201 sprintf(softc->ioctl_info.port_name, "ioctl"); 1202 port->port_type = CTL_PORT_IOCTL; 1203 port->num_requested_ctl_io = 100; 1204 port->port_name = softc->ioctl_info.port_name; 1205 port->port_online = ctl_ioctl_online; 1206 port->port_offline = ctl_ioctl_offline; 1207 port->onoff_arg = &softc->ioctl_info; 1208 port->lun_enable = ctl_ioctl_lun_enable; 1209 port->lun_disable = ctl_ioctl_lun_disable; 1210 port->targ_lun_arg = &softc->ioctl_info; 1211 port->fe_datamove = ctl_ioctl_datamove; 1212 port->fe_done = ctl_ioctl_done; 1213 port->max_targets = 15; 1214 port->max_target_id = 15; 1215 1216 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1217 printf("ctl: ioctl front end registration failed, will " 1218 "continue anyway\n"); 1219 } 1220 1221 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1222 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1223 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1224 1225#ifdef CTL_IO_DELAY 1226 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1227 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1228 sizeof(struct callout), CTL_TIMER_BYTES); 1229 return (EINVAL); 1230 } 1231#endif /* CTL_IO_DELAY */ 1232 1233 return (0); 1234} 1235 1236void 1237ctl_shutdown(void) 1238{ 1239 struct ctl_softc *softc; 1240 struct ctl_lun *lun, *next_lun; 1241 1242 softc = (struct ctl_softc *)control_softc; 1243 1244 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1245 printf("ctl: ioctl front end deregistration failed\n"); 1246 1247 mtx_lock(&softc->ctl_lock); 1248 1249 /* 1250 * Free up each LUN. 1251 */ 1252 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1253 next_lun = STAILQ_NEXT(lun, links); 1254 ctl_free_lun(lun); 1255 } 1256 1257 mtx_unlock(&softc->ctl_lock); 1258 1259 ctl_frontend_deregister(&ioctl_frontend); 1260 1261#if 0 1262 ctl_shutdown_thread(softc->work_thread); 1263 mtx_destroy(&softc->queue_lock); 1264#endif 1265 1266 ctl_tpc_shutdown(softc); 1267 uma_zdestroy(softc->io_zone); 1268 mtx_destroy(&softc->ctl_lock); 1269 1270 destroy_dev(softc->dev); 1271 1272 sysctl_ctx_free(&softc->sysctl_ctx); 1273 1274 free(control_softc, M_DEVBUF); 1275 control_softc = NULL; 1276 1277 if (bootverbose) 1278 printf("ctl: CAM Target Layer unloaded\n"); 1279} 1280 1281static int 1282ctl_module_event_handler(module_t mod, int what, void *arg) 1283{ 1284 1285 switch (what) { 1286 case MOD_LOAD: 1287 return (ctl_init()); 1288 case MOD_UNLOAD: 1289 return (EBUSY); 1290 default: 1291 return (EOPNOTSUPP); 1292 } 1293} 1294 1295/* 1296 * XXX KDM should we do some access checks here? Bump a reference count to 1297 * prevent a CTL module from being unloaded while someone has it open? 1298 */ 1299static int 1300ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1301{ 1302 return (0); 1303} 1304 1305static int 1306ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1307{ 1308 return (0); 1309} 1310 1311int 1312ctl_port_enable(ctl_port_type port_type) 1313{ 1314 struct ctl_softc *softc = control_softc; 1315 struct ctl_port *port; 1316 1317 if (softc->is_single == 0) { 1318 union ctl_ha_msg msg_info; 1319 int isc_retval; 1320 1321#if 0 1322 printf("%s: HA mode, synchronizing frontend enable\n", 1323 __func__); 1324#endif 1325 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1326 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1327 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1328 printf("Sync msg send error retval %d\n", isc_retval); 1329 } 1330 if (!rcv_sync_msg) { 1331 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1332 sizeof(msg_info), 1); 1333 } 1334#if 0 1335 printf("CTL:Frontend Enable\n"); 1336 } else { 1337 printf("%s: single mode, skipping frontend synchronization\n", 1338 __func__); 1339#endif 1340 } 1341 1342 STAILQ_FOREACH(port, &softc->port_list, links) { 1343 if (port_type & port->port_type) 1344 { 1345#if 0 1346 printf("port %d\n", port->targ_port); 1347#endif 1348 ctl_port_online(port); 1349 } 1350 } 1351 1352 return (0); 1353} 1354 1355int 1356ctl_port_disable(ctl_port_type port_type) 1357{ 1358 struct ctl_softc *softc; 1359 struct ctl_port *port; 1360 1361 softc = control_softc; 1362 1363 STAILQ_FOREACH(port, &softc->port_list, links) { 1364 if (port_type & port->port_type) 1365 ctl_port_offline(port); 1366 } 1367 1368 return (0); 1369} 1370 1371/* 1372 * Returns 0 for success, 1 for failure. 1373 * Currently the only failure mode is if there aren't enough entries 1374 * allocated. So, in case of a failure, look at num_entries_dropped, 1375 * reallocate and try again. 1376 */ 1377int 1378ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1379 int *num_entries_filled, int *num_entries_dropped, 1380 ctl_port_type port_type, int no_virtual) 1381{ 1382 struct ctl_softc *softc; 1383 struct ctl_port *port; 1384 int entries_dropped, entries_filled; 1385 int retval; 1386 int i; 1387 1388 softc = control_softc; 1389 1390 retval = 0; 1391 entries_filled = 0; 1392 entries_dropped = 0; 1393 1394 i = 0; 1395 mtx_lock(&softc->ctl_lock); 1396 STAILQ_FOREACH(port, &softc->port_list, links) { 1397 struct ctl_port_entry *entry; 1398 1399 if ((port->port_type & port_type) == 0) 1400 continue; 1401 1402 if ((no_virtual != 0) 1403 && (port->virtual_port != 0)) 1404 continue; 1405 1406 if (entries_filled >= num_entries_alloced) { 1407 entries_dropped++; 1408 continue; 1409 } 1410 entry = &entries[i]; 1411 1412 entry->port_type = port->port_type; 1413 strlcpy(entry->port_name, port->port_name, 1414 sizeof(entry->port_name)); 1415 entry->physical_port = port->physical_port; 1416 entry->virtual_port = port->virtual_port; 1417 entry->wwnn = port->wwnn; 1418 entry->wwpn = port->wwpn; 1419 1420 i++; 1421 entries_filled++; 1422 } 1423 1424 mtx_unlock(&softc->ctl_lock); 1425 1426 if (entries_dropped > 0) 1427 retval = 1; 1428 1429 *num_entries_dropped = entries_dropped; 1430 *num_entries_filled = entries_filled; 1431 1432 return (retval); 1433} 1434 1435static void 1436ctl_ioctl_online(void *arg) 1437{ 1438 struct ctl_ioctl_info *ioctl_info; 1439 1440 ioctl_info = (struct ctl_ioctl_info *)arg; 1441 1442 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1443} 1444 1445static void 1446ctl_ioctl_offline(void *arg) 1447{ 1448 struct ctl_ioctl_info *ioctl_info; 1449 1450 ioctl_info = (struct ctl_ioctl_info *)arg; 1451 1452 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1453} 1454 1455/* 1456 * Remove an initiator by port number and initiator ID. 1457 * Returns 0 for success, -1 for failure. 1458 */ 1459int 1460ctl_remove_initiator(struct ctl_port *port, int iid) 1461{ 1462 struct ctl_softc *softc = control_softc; 1463 1464 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1465 1466 if (iid > CTL_MAX_INIT_PER_PORT) { 1467 printf("%s: initiator ID %u > maximun %u!\n", 1468 __func__, iid, CTL_MAX_INIT_PER_PORT); 1469 return (-1); 1470 } 1471 1472 mtx_lock(&softc->ctl_lock); 1473 port->wwpn_iid[iid].in_use--; 1474 port->wwpn_iid[iid].last_use = time_uptime; 1475 mtx_unlock(&softc->ctl_lock); 1476 1477 return (0); 1478} 1479 1480/* 1481 * Add an initiator to the initiator map. 1482 * Returns iid for success, < 0 for failure. 1483 */ 1484int 1485ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1486{ 1487 struct ctl_softc *softc = control_softc; 1488 time_t best_time; 1489 int i, best; 1490 1491 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1492 1493 if (iid >= CTL_MAX_INIT_PER_PORT) { 1494 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1495 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1496 free(name, M_CTL); 1497 return (-1); 1498 } 1499 1500 mtx_lock(&softc->ctl_lock); 1501 1502 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1503 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1504 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1505 iid = i; 1506 break; 1507 } 1508 if (name != NULL && port->wwpn_iid[i].name != NULL && 1509 strcmp(name, port->wwpn_iid[i].name) == 0) { 1510 iid = i; 1511 break; 1512 } 1513 } 1514 } 1515 1516 if (iid < 0) { 1517 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1518 if (port->wwpn_iid[i].in_use == 0 && 1519 port->wwpn_iid[i].wwpn == 0 && 1520 port->wwpn_iid[i].name == NULL) { 1521 iid = i; 1522 break; 1523 } 1524 } 1525 } 1526 1527 if (iid < 0) { 1528 best = -1; 1529 best_time = INT32_MAX; 1530 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1531 if (port->wwpn_iid[i].in_use == 0) { 1532 if (port->wwpn_iid[i].last_use < best_time) { 1533 best = i; 1534 best_time = port->wwpn_iid[i].last_use; 1535 } 1536 } 1537 } 1538 iid = best; 1539 } 1540 1541 if (iid < 0) { 1542 mtx_unlock(&softc->ctl_lock); 1543 free(name, M_CTL); 1544 return (-2); 1545 } 1546 1547 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1548 /* 1549 * This is not an error yet. 1550 */ 1551 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1552#if 0 1553 printf("%s: port %d iid %u WWPN %#jx arrived" 1554 " again\n", __func__, port->targ_port, 1555 iid, (uintmax_t)wwpn); 1556#endif 1557 goto take; 1558 } 1559 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1560 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1561#if 0 1562 printf("%s: port %d iid %u name '%s' arrived" 1563 " again\n", __func__, port->targ_port, 1564 iid, name); 1565#endif 1566 goto take; 1567 } 1568 1569 /* 1570 * This is an error, but what do we do about it? The 1571 * driver is telling us we have a new WWPN for this 1572 * initiator ID, so we pretty much need to use it. 1573 */ 1574 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1575 " but WWPN %#jx '%s' is still at that address\n", 1576 __func__, port->targ_port, iid, wwpn, name, 1577 (uintmax_t)port->wwpn_iid[iid].wwpn, 1578 port->wwpn_iid[iid].name); 1579 1580 /* 1581 * XXX KDM clear have_ca and ua_pending on each LUN for 1582 * this initiator. 1583 */ 1584 } 1585take: 1586 free(port->wwpn_iid[iid].name, M_CTL); 1587 port->wwpn_iid[iid].name = name; 1588 port->wwpn_iid[iid].wwpn = wwpn; 1589 port->wwpn_iid[iid].in_use++; 1590 mtx_unlock(&softc->ctl_lock); 1591 1592 return (iid); 1593} 1594 1595static int 1596ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1597{ 1598 int len; 1599 1600 switch (port->port_type) { 1601 case CTL_PORT_FC: 1602 { 1603 struct scsi_transportid_fcp *id = 1604 (struct scsi_transportid_fcp *)buf; 1605 if (port->wwpn_iid[iid].wwpn == 0) 1606 return (0); 1607 memset(id, 0, sizeof(*id)); 1608 id->format_protocol = SCSI_PROTO_FC; 1609 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1610 return (sizeof(*id)); 1611 } 1612 case CTL_PORT_ISCSI: 1613 { 1614 struct scsi_transportid_iscsi_port *id = 1615 (struct scsi_transportid_iscsi_port *)buf; 1616 if (port->wwpn_iid[iid].name == NULL) 1617 return (0); 1618 memset(id, 0, 256); 1619 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1620 SCSI_PROTO_ISCSI; 1621 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1622 len = roundup2(min(len, 252), 4); 1623 scsi_ulto2b(len, id->additional_length); 1624 return (sizeof(*id) + len); 1625 } 1626 case CTL_PORT_SAS: 1627 { 1628 struct scsi_transportid_sas *id = 1629 (struct scsi_transportid_sas *)buf; 1630 if (port->wwpn_iid[iid].wwpn == 0) 1631 return (0); 1632 memset(id, 0, sizeof(*id)); 1633 id->format_protocol = SCSI_PROTO_SAS; 1634 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1635 return (sizeof(*id)); 1636 } 1637 default: 1638 { 1639 struct scsi_transportid_spi *id = 1640 (struct scsi_transportid_spi *)buf; 1641 memset(id, 0, sizeof(*id)); 1642 id->format_protocol = SCSI_PROTO_SPI; 1643 scsi_ulto2b(iid, id->scsi_addr); 1644 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1645 return (sizeof(*id)); 1646 } 1647 } 1648} 1649 1650static int 1651ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1652{ 1653 return (0); 1654} 1655 1656static int 1657ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1658{ 1659 return (0); 1660} 1661 1662/* 1663 * Data movement routine for the CTL ioctl frontend port. 1664 */ 1665static int 1666ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1667{ 1668 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1669 struct ctl_sg_entry ext_entry, kern_entry; 1670 int ext_sglen, ext_sg_entries, kern_sg_entries; 1671 int ext_sg_start, ext_offset; 1672 int len_to_copy, len_copied; 1673 int kern_watermark, ext_watermark; 1674 int ext_sglist_malloced; 1675 int i, j; 1676 1677 ext_sglist_malloced = 0; 1678 ext_sg_start = 0; 1679 ext_offset = 0; 1680 1681 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1682 1683 /* 1684 * If this flag is set, fake the data transfer. 1685 */ 1686 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1687 ctsio->ext_data_filled = ctsio->ext_data_len; 1688 goto bailout; 1689 } 1690 1691 /* 1692 * To simplify things here, if we have a single buffer, stick it in 1693 * a S/G entry and just make it a single entry S/G list. 1694 */ 1695 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1696 int len_seen; 1697 1698 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1699 1700 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1701 M_WAITOK); 1702 ext_sglist_malloced = 1; 1703 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1704 ext_sglen) != 0) { 1705 ctl_set_internal_failure(ctsio, 1706 /*sks_valid*/ 0, 1707 /*retry_count*/ 0); 1708 goto bailout; 1709 } 1710 ext_sg_entries = ctsio->ext_sg_entries; 1711 len_seen = 0; 1712 for (i = 0; i < ext_sg_entries; i++) { 1713 if ((len_seen + ext_sglist[i].len) >= 1714 ctsio->ext_data_filled) { 1715 ext_sg_start = i; 1716 ext_offset = ctsio->ext_data_filled - len_seen; 1717 break; 1718 } 1719 len_seen += ext_sglist[i].len; 1720 } 1721 } else { 1722 ext_sglist = &ext_entry; 1723 ext_sglist->addr = ctsio->ext_data_ptr; 1724 ext_sglist->len = ctsio->ext_data_len; 1725 ext_sg_entries = 1; 1726 ext_sg_start = 0; 1727 ext_offset = ctsio->ext_data_filled; 1728 } 1729 1730 if (ctsio->kern_sg_entries > 0) { 1731 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1732 kern_sg_entries = ctsio->kern_sg_entries; 1733 } else { 1734 kern_sglist = &kern_entry; 1735 kern_sglist->addr = ctsio->kern_data_ptr; 1736 kern_sglist->len = ctsio->kern_data_len; 1737 kern_sg_entries = 1; 1738 } 1739 1740 1741 kern_watermark = 0; 1742 ext_watermark = ext_offset; 1743 len_copied = 0; 1744 for (i = ext_sg_start, j = 0; 1745 i < ext_sg_entries && j < kern_sg_entries;) { 1746 uint8_t *ext_ptr, *kern_ptr; 1747 1748 len_to_copy = MIN(ext_sglist[i].len - ext_watermark, 1749 kern_sglist[j].len - kern_watermark); 1750 1751 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1752 ext_ptr = ext_ptr + ext_watermark; 1753 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1754 /* 1755 * XXX KDM fix this! 1756 */ 1757 panic("need to implement bus address support"); 1758#if 0 1759 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1760#endif 1761 } else 1762 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1763 kern_ptr = kern_ptr + kern_watermark; 1764 1765 kern_watermark += len_to_copy; 1766 ext_watermark += len_to_copy; 1767 1768 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1769 CTL_FLAG_DATA_IN) { 1770 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1771 "bytes to user\n", len_to_copy)); 1772 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1773 "to %p\n", kern_ptr, ext_ptr)); 1774 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1775 ctl_set_internal_failure(ctsio, 1776 /*sks_valid*/ 0, 1777 /*retry_count*/ 0); 1778 goto bailout; 1779 } 1780 } else { 1781 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1782 "bytes from user\n", len_to_copy)); 1783 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1784 "to %p\n", ext_ptr, kern_ptr)); 1785 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1786 ctl_set_internal_failure(ctsio, 1787 /*sks_valid*/ 0, 1788 /*retry_count*/0); 1789 goto bailout; 1790 } 1791 } 1792 1793 len_copied += len_to_copy; 1794 1795 if (ext_sglist[i].len == ext_watermark) { 1796 i++; 1797 ext_watermark = 0; 1798 } 1799 1800 if (kern_sglist[j].len == kern_watermark) { 1801 j++; 1802 kern_watermark = 0; 1803 } 1804 } 1805 1806 ctsio->ext_data_filled += len_copied; 1807 1808 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1809 "kern_sg_entries: %d\n", ext_sg_entries, 1810 kern_sg_entries)); 1811 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1812 "kern_data_len = %d\n", ctsio->ext_data_len, 1813 ctsio->kern_data_len)); 1814 1815 1816 /* XXX KDM set residual?? */ 1817bailout: 1818 1819 if (ext_sglist_malloced != 0) 1820 free(ext_sglist, M_CTL); 1821 1822 return (CTL_RETVAL_COMPLETE); 1823} 1824 1825/* 1826 * Serialize a command that went down the "wrong" side, and so was sent to 1827 * this controller for execution. The logic is a little different than the 1828 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1829 * sent back to the other side, but in the success case, we execute the 1830 * command on this side (XFER mode) or tell the other side to execute it 1831 * (SER_ONLY mode). 1832 */ 1833static int 1834ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1835{ 1836 struct ctl_softc *softc; 1837 union ctl_ha_msg msg_info; 1838 struct ctl_lun *lun; 1839 int retval = 0; 1840 uint32_t targ_lun; 1841 1842 softc = control_softc; 1843 1844 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1845 lun = softc->ctl_luns[targ_lun]; 1846 if (lun==NULL) 1847 { 1848 /* 1849 * Why isn't LUN defined? The other side wouldn't 1850 * send a cmd if the LUN is undefined. 1851 */ 1852 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1853 1854 /* "Logical unit not supported" */ 1855 ctl_set_sense_data(&msg_info.scsi.sense_data, 1856 lun, 1857 /*sense_format*/SSD_TYPE_NONE, 1858 /*current_error*/ 1, 1859 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1860 /*asc*/ 0x25, 1861 /*ascq*/ 0x00, 1862 SSD_ELEM_NONE); 1863 1864 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1865 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1866 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1867 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1868 msg_info.hdr.serializing_sc = NULL; 1869 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1870 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1871 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1872 } 1873 return(1); 1874 1875 } 1876 1877 mtx_lock(&lun->lun_lock); 1878 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1879 1880 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1881 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1882 ooa_links))) { 1883 case CTL_ACTION_BLOCK: 1884 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1885 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1886 blocked_links); 1887 break; 1888 case CTL_ACTION_PASS: 1889 case CTL_ACTION_SKIP: 1890 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1891 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1892 ctl_enqueue_rtr((union ctl_io *)ctsio); 1893 } else { 1894 1895 /* send msg back to other side */ 1896 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1897 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1898 msg_info.hdr.msg_type = CTL_MSG_R2R; 1899#if 0 1900 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1901#endif 1902 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1903 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1904 } 1905 } 1906 break; 1907 case CTL_ACTION_OVERLAP: 1908 /* OVERLAPPED COMMANDS ATTEMPTED */ 1909 ctl_set_sense_data(&msg_info.scsi.sense_data, 1910 lun, 1911 /*sense_format*/SSD_TYPE_NONE, 1912 /*current_error*/ 1, 1913 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1914 /*asc*/ 0x4E, 1915 /*ascq*/ 0x00, 1916 SSD_ELEM_NONE); 1917 1918 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1919 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1920 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1921 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1922 msg_info.hdr.serializing_sc = NULL; 1923 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1924#if 0 1925 printf("BAD JUJU:Major Bummer Overlap\n"); 1926#endif 1927 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1928 retval = 1; 1929 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1930 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1931 } 1932 break; 1933 case CTL_ACTION_OVERLAP_TAG: 1934 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1935 ctl_set_sense_data(&msg_info.scsi.sense_data, 1936 lun, 1937 /*sense_format*/SSD_TYPE_NONE, 1938 /*current_error*/ 1, 1939 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1940 /*asc*/ 0x4D, 1941 /*ascq*/ ctsio->tag_num & 0xff, 1942 SSD_ELEM_NONE); 1943 1944 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1945 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1946 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1947 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1948 msg_info.hdr.serializing_sc = NULL; 1949 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1950#if 0 1951 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1952#endif 1953 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1954 retval = 1; 1955 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1956 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1957 } 1958 break; 1959 case CTL_ACTION_ERROR: 1960 default: 1961 /* "Internal target failure" */ 1962 ctl_set_sense_data(&msg_info.scsi.sense_data, 1963 lun, 1964 /*sense_format*/SSD_TYPE_NONE, 1965 /*current_error*/ 1, 1966 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1967 /*asc*/ 0x44, 1968 /*ascq*/ 0x00, 1969 SSD_ELEM_NONE); 1970 1971 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1972 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1973 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1974 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1975 msg_info.hdr.serializing_sc = NULL; 1976 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1977#if 0 1978 printf("BAD JUJU:Major Bummer HW Error\n"); 1979#endif 1980 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1981 retval = 1; 1982 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1983 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1984 } 1985 break; 1986 } 1987 mtx_unlock(&lun->lun_lock); 1988 return (retval); 1989} 1990 1991static int 1992ctl_ioctl_submit_wait(union ctl_io *io) 1993{ 1994 struct ctl_fe_ioctl_params params; 1995 ctl_fe_ioctl_state last_state; 1996 int done, retval; 1997 1998 retval = 0; 1999 2000 bzero(¶ms, sizeof(params)); 2001 2002 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2003 cv_init(¶ms.sem, "ctlioccv"); 2004 params.state = CTL_IOCTL_INPROG; 2005 last_state = params.state; 2006 2007 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2008 2009 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2010 2011 /* This shouldn't happen */ 2012 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2013 return (retval); 2014 2015 done = 0; 2016 2017 do { 2018 mtx_lock(¶ms.ioctl_mtx); 2019 /* 2020 * Check the state here, and don't sleep if the state has 2021 * already changed (i.e. wakeup has already occured, but we 2022 * weren't waiting yet). 2023 */ 2024 if (params.state == last_state) { 2025 /* XXX KDM cv_wait_sig instead? */ 2026 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2027 } 2028 last_state = params.state; 2029 2030 switch (params.state) { 2031 case CTL_IOCTL_INPROG: 2032 /* Why did we wake up? */ 2033 /* XXX KDM error here? */ 2034 mtx_unlock(¶ms.ioctl_mtx); 2035 break; 2036 case CTL_IOCTL_DATAMOVE: 2037 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2038 2039 /* 2040 * change last_state back to INPROG to avoid 2041 * deadlock on subsequent data moves. 2042 */ 2043 params.state = last_state = CTL_IOCTL_INPROG; 2044 2045 mtx_unlock(¶ms.ioctl_mtx); 2046 ctl_ioctl_do_datamove(&io->scsiio); 2047 /* 2048 * Note that in some cases, most notably writes, 2049 * this will queue the I/O and call us back later. 2050 * In other cases, generally reads, this routine 2051 * will immediately call back and wake us up, 2052 * probably using our own context. 2053 */ 2054 io->scsiio.be_move_done(io); 2055 break; 2056 case CTL_IOCTL_DONE: 2057 mtx_unlock(¶ms.ioctl_mtx); 2058 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2059 done = 1; 2060 break; 2061 default: 2062 mtx_unlock(¶ms.ioctl_mtx); 2063 /* XXX KDM error here? */ 2064 break; 2065 } 2066 } while (done == 0); 2067 2068 mtx_destroy(¶ms.ioctl_mtx); 2069 cv_destroy(¶ms.sem); 2070 2071 return (CTL_RETVAL_COMPLETE); 2072} 2073 2074static void 2075ctl_ioctl_datamove(union ctl_io *io) 2076{ 2077 struct ctl_fe_ioctl_params *params; 2078 2079 params = (struct ctl_fe_ioctl_params *) 2080 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2081 2082 mtx_lock(¶ms->ioctl_mtx); 2083 params->state = CTL_IOCTL_DATAMOVE; 2084 cv_broadcast(¶ms->sem); 2085 mtx_unlock(¶ms->ioctl_mtx); 2086} 2087 2088static void 2089ctl_ioctl_done(union ctl_io *io) 2090{ 2091 struct ctl_fe_ioctl_params *params; 2092 2093 params = (struct ctl_fe_ioctl_params *) 2094 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2095 2096 mtx_lock(¶ms->ioctl_mtx); 2097 params->state = CTL_IOCTL_DONE; 2098 cv_broadcast(¶ms->sem); 2099 mtx_unlock(¶ms->ioctl_mtx); 2100} 2101 2102static void 2103ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2104{ 2105 struct ctl_fe_ioctl_startstop_info *sd_info; 2106 2107 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2108 2109 sd_info->hs_info.status = metatask->status; 2110 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2111 sd_info->hs_info.luns_complete = 2112 metatask->taskinfo.startstop.luns_complete; 2113 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2114 2115 cv_broadcast(&sd_info->sem); 2116} 2117 2118static void 2119ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2120{ 2121 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2122 2123 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2124 2125 mtx_lock(fe_bbr_info->lock); 2126 fe_bbr_info->bbr_info->status = metatask->status; 2127 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2128 fe_bbr_info->wakeup_done = 1; 2129 mtx_unlock(fe_bbr_info->lock); 2130 2131 cv_broadcast(&fe_bbr_info->sem); 2132} 2133 2134/* 2135 * Returns 0 for success, errno for failure. 2136 */ 2137static int 2138ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2139 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2140{ 2141 union ctl_io *io; 2142 int retval; 2143 2144 retval = 0; 2145 2146 mtx_lock(&lun->lun_lock); 2147 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2148 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2149 ooa_links)) { 2150 struct ctl_ooa_entry *entry; 2151 2152 /* 2153 * If we've got more than we can fit, just count the 2154 * remaining entries. 2155 */ 2156 if (*cur_fill_num >= ooa_hdr->alloc_num) 2157 continue; 2158 2159 entry = &kern_entries[*cur_fill_num]; 2160 2161 entry->tag_num = io->scsiio.tag_num; 2162 entry->lun_num = lun->lun; 2163#ifdef CTL_TIME_IO 2164 entry->start_bt = io->io_hdr.start_bt; 2165#endif 2166 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2167 entry->cdb_len = io->scsiio.cdb_len; 2168 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2169 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2170 2171 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2172 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2173 2174 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2175 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2176 2177 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2178 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2179 2180 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2181 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2182 } 2183 mtx_unlock(&lun->lun_lock); 2184 2185 return (retval); 2186} 2187 2188static void * 2189ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2190 size_t error_str_len) 2191{ 2192 void *kptr; 2193 2194 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2195 2196 if (copyin(user_addr, kptr, len) != 0) { 2197 snprintf(error_str, error_str_len, "Error copying %d bytes " 2198 "from user address %p to kernel address %p", len, 2199 user_addr, kptr); 2200 free(kptr, M_CTL); 2201 return (NULL); 2202 } 2203 2204 return (kptr); 2205} 2206 2207static void 2208ctl_free_args(int num_args, struct ctl_be_arg *args) 2209{ 2210 int i; 2211 2212 if (args == NULL) 2213 return; 2214 2215 for (i = 0; i < num_args; i++) { 2216 free(args[i].kname, M_CTL); 2217 free(args[i].kvalue, M_CTL); 2218 } 2219 2220 free(args, M_CTL); 2221} 2222 2223static struct ctl_be_arg * 2224ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2225 char *error_str, size_t error_str_len) 2226{ 2227 struct ctl_be_arg *args; 2228 int i; 2229 2230 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2231 error_str, error_str_len); 2232 2233 if (args == NULL) 2234 goto bailout; 2235 2236 for (i = 0; i < num_args; i++) { 2237 args[i].kname = NULL; 2238 args[i].kvalue = NULL; 2239 } 2240 2241 for (i = 0; i < num_args; i++) { 2242 uint8_t *tmpptr; 2243 2244 args[i].kname = ctl_copyin_alloc(args[i].name, 2245 args[i].namelen, error_str, error_str_len); 2246 if (args[i].kname == NULL) 2247 goto bailout; 2248 2249 if (args[i].kname[args[i].namelen - 1] != '\0') { 2250 snprintf(error_str, error_str_len, "Argument %d " 2251 "name is not NUL-terminated", i); 2252 goto bailout; 2253 } 2254 2255 if (args[i].flags & CTL_BEARG_RD) { 2256 tmpptr = ctl_copyin_alloc(args[i].value, 2257 args[i].vallen, error_str, error_str_len); 2258 if (tmpptr == NULL) 2259 goto bailout; 2260 if ((args[i].flags & CTL_BEARG_ASCII) 2261 && (tmpptr[args[i].vallen - 1] != '\0')) { 2262 snprintf(error_str, error_str_len, "Argument " 2263 "%d value is not NUL-terminated", i); 2264 goto bailout; 2265 } 2266 args[i].kvalue = tmpptr; 2267 } else { 2268 args[i].kvalue = malloc(args[i].vallen, 2269 M_CTL, M_WAITOK | M_ZERO); 2270 } 2271 } 2272 2273 return (args); 2274bailout: 2275 2276 ctl_free_args(num_args, args); 2277 2278 return (NULL); 2279} 2280 2281static void 2282ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2283{ 2284 int i; 2285 2286 for (i = 0; i < num_args; i++) { 2287 if (args[i].flags & CTL_BEARG_WR) 2288 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2289 } 2290} 2291 2292/* 2293 * Escape characters that are illegal or not recommended in XML. 2294 */ 2295int 2296ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2297{ 2298 char *end = str + size; 2299 int retval; 2300 2301 retval = 0; 2302 2303 for (; *str && str < end; str++) { 2304 switch (*str) { 2305 case '&': 2306 retval = sbuf_printf(sb, "&"); 2307 break; 2308 case '>': 2309 retval = sbuf_printf(sb, ">"); 2310 break; 2311 case '<': 2312 retval = sbuf_printf(sb, "<"); 2313 break; 2314 default: 2315 retval = sbuf_putc(sb, *str); 2316 break; 2317 } 2318 2319 if (retval != 0) 2320 break; 2321 2322 } 2323 2324 return (retval); 2325} 2326 2327static void 2328ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2329{ 2330 struct scsi_vpd_id_descriptor *desc; 2331 int i; 2332 2333 if (id == NULL || id->len < 4) 2334 return; 2335 desc = (struct scsi_vpd_id_descriptor *)id->data; 2336 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2337 case SVPD_ID_TYPE_T10: 2338 sbuf_printf(sb, "t10."); 2339 break; 2340 case SVPD_ID_TYPE_EUI64: 2341 sbuf_printf(sb, "eui."); 2342 break; 2343 case SVPD_ID_TYPE_NAA: 2344 sbuf_printf(sb, "naa."); 2345 break; 2346 case SVPD_ID_TYPE_SCSI_NAME: 2347 break; 2348 } 2349 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2350 case SVPD_ID_CODESET_BINARY: 2351 for (i = 0; i < desc->length; i++) 2352 sbuf_printf(sb, "%02x", desc->identifier[i]); 2353 break; 2354 case SVPD_ID_CODESET_ASCII: 2355 sbuf_printf(sb, "%.*s", (int)desc->length, 2356 (char *)desc->identifier); 2357 break; 2358 case SVPD_ID_CODESET_UTF8: 2359 sbuf_printf(sb, "%s", (char *)desc->identifier); 2360 break; 2361 } 2362} 2363 2364static int 2365ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2366 struct thread *td) 2367{ 2368 struct ctl_softc *softc; 2369 int retval; 2370 2371 softc = control_softc; 2372 2373 retval = 0; 2374 2375 switch (cmd) { 2376 case CTL_IO: { 2377 union ctl_io *io; 2378 void *pool_tmp; 2379 2380 /* 2381 * If we haven't been "enabled", don't allow any SCSI I/O 2382 * to this FETD. 2383 */ 2384 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2385 retval = EPERM; 2386 break; 2387 } 2388 2389 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2390 2391 /* 2392 * Need to save the pool reference so it doesn't get 2393 * spammed by the user's ctl_io. 2394 */ 2395 pool_tmp = io->io_hdr.pool; 2396 memcpy(io, (void *)addr, sizeof(*io)); 2397 io->io_hdr.pool = pool_tmp; 2398 2399 /* 2400 * No status yet, so make sure the status is set properly. 2401 */ 2402 io->io_hdr.status = CTL_STATUS_NONE; 2403 2404 /* 2405 * The user sets the initiator ID, target and LUN IDs. 2406 */ 2407 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2408 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2409 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2410 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2411 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2412 2413 retval = ctl_ioctl_submit_wait(io); 2414 2415 if (retval != 0) { 2416 ctl_free_io(io); 2417 break; 2418 } 2419 2420 memcpy((void *)addr, io, sizeof(*io)); 2421 2422 /* return this to our pool */ 2423 ctl_free_io(io); 2424 2425 break; 2426 } 2427 case CTL_ENABLE_PORT: 2428 case CTL_DISABLE_PORT: 2429 case CTL_SET_PORT_WWNS: { 2430 struct ctl_port *port; 2431 struct ctl_port_entry *entry; 2432 2433 entry = (struct ctl_port_entry *)addr; 2434 2435 mtx_lock(&softc->ctl_lock); 2436 STAILQ_FOREACH(port, &softc->port_list, links) { 2437 int action, done; 2438 2439 action = 0; 2440 done = 0; 2441 2442 if ((entry->port_type == CTL_PORT_NONE) 2443 && (entry->targ_port == port->targ_port)) { 2444 /* 2445 * If the user only wants to enable or 2446 * disable or set WWNs on a specific port, 2447 * do the operation and we're done. 2448 */ 2449 action = 1; 2450 done = 1; 2451 } else if (entry->port_type & port->port_type) { 2452 /* 2453 * Compare the user's type mask with the 2454 * particular frontend type to see if we 2455 * have a match. 2456 */ 2457 action = 1; 2458 done = 0; 2459 2460 /* 2461 * Make sure the user isn't trying to set 2462 * WWNs on multiple ports at the same time. 2463 */ 2464 if (cmd == CTL_SET_PORT_WWNS) { 2465 printf("%s: Can't set WWNs on " 2466 "multiple ports\n", __func__); 2467 retval = EINVAL; 2468 break; 2469 } 2470 } 2471 if (action != 0) { 2472 /* 2473 * XXX KDM we have to drop the lock here, 2474 * because the online/offline operations 2475 * can potentially block. We need to 2476 * reference count the frontends so they 2477 * can't go away, 2478 */ 2479 mtx_unlock(&softc->ctl_lock); 2480 2481 if (cmd == CTL_ENABLE_PORT) { 2482 struct ctl_lun *lun; 2483 2484 STAILQ_FOREACH(lun, &softc->lun_list, 2485 links) { 2486 port->lun_enable(port->targ_lun_arg, 2487 lun->target, 2488 lun->lun); 2489 } 2490 2491 ctl_port_online(port); 2492 } else if (cmd == CTL_DISABLE_PORT) { 2493 struct ctl_lun *lun; 2494 2495 ctl_port_offline(port); 2496 2497 STAILQ_FOREACH(lun, &softc->lun_list, 2498 links) { 2499 port->lun_disable( 2500 port->targ_lun_arg, 2501 lun->target, 2502 lun->lun); 2503 } 2504 } 2505 2506 mtx_lock(&softc->ctl_lock); 2507 2508 if (cmd == CTL_SET_PORT_WWNS) 2509 ctl_port_set_wwns(port, 2510 (entry->flags & CTL_PORT_WWNN_VALID) ? 2511 1 : 0, entry->wwnn, 2512 (entry->flags & CTL_PORT_WWPN_VALID) ? 2513 1 : 0, entry->wwpn); 2514 } 2515 if (done != 0) 2516 break; 2517 } 2518 mtx_unlock(&softc->ctl_lock); 2519 break; 2520 } 2521 case CTL_GET_PORT_LIST: { 2522 struct ctl_port *port; 2523 struct ctl_port_list *list; 2524 int i; 2525 2526 list = (struct ctl_port_list *)addr; 2527 2528 if (list->alloc_len != (list->alloc_num * 2529 sizeof(struct ctl_port_entry))) { 2530 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2531 "alloc_num %u * sizeof(struct ctl_port_entry) " 2532 "%zu\n", __func__, list->alloc_len, 2533 list->alloc_num, sizeof(struct ctl_port_entry)); 2534 retval = EINVAL; 2535 break; 2536 } 2537 list->fill_len = 0; 2538 list->fill_num = 0; 2539 list->dropped_num = 0; 2540 i = 0; 2541 mtx_lock(&softc->ctl_lock); 2542 STAILQ_FOREACH(port, &softc->port_list, links) { 2543 struct ctl_port_entry entry, *list_entry; 2544 2545 if (list->fill_num >= list->alloc_num) { 2546 list->dropped_num++; 2547 continue; 2548 } 2549 2550 entry.port_type = port->port_type; 2551 strlcpy(entry.port_name, port->port_name, 2552 sizeof(entry.port_name)); 2553 entry.targ_port = port->targ_port; 2554 entry.physical_port = port->physical_port; 2555 entry.virtual_port = port->virtual_port; 2556 entry.wwnn = port->wwnn; 2557 entry.wwpn = port->wwpn; 2558 if (port->status & CTL_PORT_STATUS_ONLINE) 2559 entry.online = 1; 2560 else 2561 entry.online = 0; 2562 2563 list_entry = &list->entries[i]; 2564 2565 retval = copyout(&entry, list_entry, sizeof(entry)); 2566 if (retval != 0) { 2567 printf("%s: CTL_GET_PORT_LIST: copyout " 2568 "returned %d\n", __func__, retval); 2569 break; 2570 } 2571 i++; 2572 list->fill_num++; 2573 list->fill_len += sizeof(entry); 2574 } 2575 mtx_unlock(&softc->ctl_lock); 2576 2577 /* 2578 * If this is non-zero, we had a copyout fault, so there's 2579 * probably no point in attempting to set the status inside 2580 * the structure. 2581 */ 2582 if (retval != 0) 2583 break; 2584 2585 if (list->dropped_num > 0) 2586 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2587 else 2588 list->status = CTL_PORT_LIST_OK; 2589 break; 2590 } 2591 case CTL_DUMP_OOA: { 2592 struct ctl_lun *lun; 2593 union ctl_io *io; 2594 char printbuf[128]; 2595 struct sbuf sb; 2596 2597 mtx_lock(&softc->ctl_lock); 2598 printf("Dumping OOA queues:\n"); 2599 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2600 mtx_lock(&lun->lun_lock); 2601 for (io = (union ctl_io *)TAILQ_FIRST( 2602 &lun->ooa_queue); io != NULL; 2603 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2604 ooa_links)) { 2605 sbuf_new(&sb, printbuf, sizeof(printbuf), 2606 SBUF_FIXEDLEN); 2607 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2608 (intmax_t)lun->lun, 2609 io->scsiio.tag_num, 2610 (io->io_hdr.flags & 2611 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2612 (io->io_hdr.flags & 2613 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2614 (io->io_hdr.flags & 2615 CTL_FLAG_ABORT) ? " ABORT" : "", 2616 (io->io_hdr.flags & 2617 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2618 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2619 sbuf_finish(&sb); 2620 printf("%s\n", sbuf_data(&sb)); 2621 } 2622 mtx_unlock(&lun->lun_lock); 2623 } 2624 printf("OOA queues dump done\n"); 2625 mtx_unlock(&softc->ctl_lock); 2626 break; 2627 } 2628 case CTL_GET_OOA: { 2629 struct ctl_lun *lun; 2630 struct ctl_ooa *ooa_hdr; 2631 struct ctl_ooa_entry *entries; 2632 uint32_t cur_fill_num; 2633 2634 ooa_hdr = (struct ctl_ooa *)addr; 2635 2636 if ((ooa_hdr->alloc_len == 0) 2637 || (ooa_hdr->alloc_num == 0)) { 2638 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2639 "must be non-zero\n", __func__, 2640 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2641 retval = EINVAL; 2642 break; 2643 } 2644 2645 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2646 sizeof(struct ctl_ooa_entry))) { 2647 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2648 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2649 __func__, ooa_hdr->alloc_len, 2650 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2651 retval = EINVAL; 2652 break; 2653 } 2654 2655 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2656 if (entries == NULL) { 2657 printf("%s: could not allocate %d bytes for OOA " 2658 "dump\n", __func__, ooa_hdr->alloc_len); 2659 retval = ENOMEM; 2660 break; 2661 } 2662 2663 mtx_lock(&softc->ctl_lock); 2664 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2665 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2666 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2667 mtx_unlock(&softc->ctl_lock); 2668 free(entries, M_CTL); 2669 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2670 __func__, (uintmax_t)ooa_hdr->lun_num); 2671 retval = EINVAL; 2672 break; 2673 } 2674 2675 cur_fill_num = 0; 2676 2677 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2678 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2679 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2680 ooa_hdr, entries); 2681 if (retval != 0) 2682 break; 2683 } 2684 if (retval != 0) { 2685 mtx_unlock(&softc->ctl_lock); 2686 free(entries, M_CTL); 2687 break; 2688 } 2689 } else { 2690 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2691 2692 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2693 entries); 2694 } 2695 mtx_unlock(&softc->ctl_lock); 2696 2697 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2698 ooa_hdr->fill_len = ooa_hdr->fill_num * 2699 sizeof(struct ctl_ooa_entry); 2700 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2701 if (retval != 0) { 2702 printf("%s: error copying out %d bytes for OOA dump\n", 2703 __func__, ooa_hdr->fill_len); 2704 } 2705 2706 getbintime(&ooa_hdr->cur_bt); 2707 2708 if (cur_fill_num > ooa_hdr->alloc_num) { 2709 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2710 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2711 } else { 2712 ooa_hdr->dropped_num = 0; 2713 ooa_hdr->status = CTL_OOA_OK; 2714 } 2715 2716 free(entries, M_CTL); 2717 break; 2718 } 2719 case CTL_CHECK_OOA: { 2720 union ctl_io *io; 2721 struct ctl_lun *lun; 2722 struct ctl_ooa_info *ooa_info; 2723 2724 2725 ooa_info = (struct ctl_ooa_info *)addr; 2726 2727 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2728 ooa_info->status = CTL_OOA_INVALID_LUN; 2729 break; 2730 } 2731 mtx_lock(&softc->ctl_lock); 2732 lun = softc->ctl_luns[ooa_info->lun_id]; 2733 if (lun == NULL) { 2734 mtx_unlock(&softc->ctl_lock); 2735 ooa_info->status = CTL_OOA_INVALID_LUN; 2736 break; 2737 } 2738 mtx_lock(&lun->lun_lock); 2739 mtx_unlock(&softc->ctl_lock); 2740 ooa_info->num_entries = 0; 2741 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2742 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2743 &io->io_hdr, ooa_links)) { 2744 ooa_info->num_entries++; 2745 } 2746 mtx_unlock(&lun->lun_lock); 2747 2748 ooa_info->status = CTL_OOA_SUCCESS; 2749 2750 break; 2751 } 2752 case CTL_HARD_START: 2753 case CTL_HARD_STOP: { 2754 struct ctl_fe_ioctl_startstop_info ss_info; 2755 struct cfi_metatask *metatask; 2756 struct mtx hs_mtx; 2757 2758 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2759 2760 cv_init(&ss_info.sem, "hard start/stop cv" ); 2761 2762 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2763 if (metatask == NULL) { 2764 retval = ENOMEM; 2765 mtx_destroy(&hs_mtx); 2766 break; 2767 } 2768 2769 if (cmd == CTL_HARD_START) 2770 metatask->tasktype = CFI_TASK_STARTUP; 2771 else 2772 metatask->tasktype = CFI_TASK_SHUTDOWN; 2773 2774 metatask->callback = ctl_ioctl_hard_startstop_callback; 2775 metatask->callback_arg = &ss_info; 2776 2777 cfi_action(metatask); 2778 2779 /* Wait for the callback */ 2780 mtx_lock(&hs_mtx); 2781 cv_wait_sig(&ss_info.sem, &hs_mtx); 2782 mtx_unlock(&hs_mtx); 2783 2784 /* 2785 * All information has been copied from the metatask by the 2786 * time cv_broadcast() is called, so we free the metatask here. 2787 */ 2788 cfi_free_metatask(metatask); 2789 2790 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2791 2792 mtx_destroy(&hs_mtx); 2793 break; 2794 } 2795 case CTL_BBRREAD: { 2796 struct ctl_bbrread_info *bbr_info; 2797 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2798 struct mtx bbr_mtx; 2799 struct cfi_metatask *metatask; 2800 2801 bbr_info = (struct ctl_bbrread_info *)addr; 2802 2803 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2804 2805 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2806 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2807 2808 fe_bbr_info.bbr_info = bbr_info; 2809 fe_bbr_info.lock = &bbr_mtx; 2810 2811 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2812 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2813 2814 if (metatask == NULL) { 2815 mtx_destroy(&bbr_mtx); 2816 cv_destroy(&fe_bbr_info.sem); 2817 retval = ENOMEM; 2818 break; 2819 } 2820 metatask->tasktype = CFI_TASK_BBRREAD; 2821 metatask->callback = ctl_ioctl_bbrread_callback; 2822 metatask->callback_arg = &fe_bbr_info; 2823 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2824 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2825 metatask->taskinfo.bbrread.len = bbr_info->len; 2826 2827 cfi_action(metatask); 2828 2829 mtx_lock(&bbr_mtx); 2830 while (fe_bbr_info.wakeup_done == 0) 2831 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2832 mtx_unlock(&bbr_mtx); 2833 2834 bbr_info->status = metatask->status; 2835 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2836 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2837 memcpy(&bbr_info->sense_data, 2838 &metatask->taskinfo.bbrread.sense_data, 2839 MIN(sizeof(bbr_info->sense_data), 2840 sizeof(metatask->taskinfo.bbrread.sense_data))); 2841 2842 cfi_free_metatask(metatask); 2843 2844 mtx_destroy(&bbr_mtx); 2845 cv_destroy(&fe_bbr_info.sem); 2846 2847 break; 2848 } 2849 case CTL_DELAY_IO: { 2850 struct ctl_io_delay_info *delay_info; 2851#ifdef CTL_IO_DELAY 2852 struct ctl_lun *lun; 2853#endif /* CTL_IO_DELAY */ 2854 2855 delay_info = (struct ctl_io_delay_info *)addr; 2856 2857#ifdef CTL_IO_DELAY 2858 mtx_lock(&softc->ctl_lock); 2859 2860 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2861 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2862 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2863 } else { 2864 lun = softc->ctl_luns[delay_info->lun_id]; 2865 mtx_lock(&lun->lun_lock); 2866 2867 delay_info->status = CTL_DELAY_STATUS_OK; 2868 2869 switch (delay_info->delay_type) { 2870 case CTL_DELAY_TYPE_CONT: 2871 break; 2872 case CTL_DELAY_TYPE_ONESHOT: 2873 break; 2874 default: 2875 delay_info->status = 2876 CTL_DELAY_STATUS_INVALID_TYPE; 2877 break; 2878 } 2879 2880 switch (delay_info->delay_loc) { 2881 case CTL_DELAY_LOC_DATAMOVE: 2882 lun->delay_info.datamove_type = 2883 delay_info->delay_type; 2884 lun->delay_info.datamove_delay = 2885 delay_info->delay_secs; 2886 break; 2887 case CTL_DELAY_LOC_DONE: 2888 lun->delay_info.done_type = 2889 delay_info->delay_type; 2890 lun->delay_info.done_delay = 2891 delay_info->delay_secs; 2892 break; 2893 default: 2894 delay_info->status = 2895 CTL_DELAY_STATUS_INVALID_LOC; 2896 break; 2897 } 2898 mtx_unlock(&lun->lun_lock); 2899 } 2900 2901 mtx_unlock(&softc->ctl_lock); 2902#else 2903 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2904#endif /* CTL_IO_DELAY */ 2905 break; 2906 } 2907 case CTL_REALSYNC_SET: { 2908 int *syncstate; 2909 2910 syncstate = (int *)addr; 2911 2912 mtx_lock(&softc->ctl_lock); 2913 switch (*syncstate) { 2914 case 0: 2915 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2916 break; 2917 case 1: 2918 softc->flags |= CTL_FLAG_REAL_SYNC; 2919 break; 2920 default: 2921 retval = EINVAL; 2922 break; 2923 } 2924 mtx_unlock(&softc->ctl_lock); 2925 break; 2926 } 2927 case CTL_REALSYNC_GET: { 2928 int *syncstate; 2929 2930 syncstate = (int*)addr; 2931 2932 mtx_lock(&softc->ctl_lock); 2933 if (softc->flags & CTL_FLAG_REAL_SYNC) 2934 *syncstate = 1; 2935 else 2936 *syncstate = 0; 2937 mtx_unlock(&softc->ctl_lock); 2938 2939 break; 2940 } 2941 case CTL_SETSYNC: 2942 case CTL_GETSYNC: { 2943 struct ctl_sync_info *sync_info; 2944 struct ctl_lun *lun; 2945 2946 sync_info = (struct ctl_sync_info *)addr; 2947 2948 mtx_lock(&softc->ctl_lock); 2949 lun = softc->ctl_luns[sync_info->lun_id]; 2950 if (lun == NULL) { 2951 mtx_unlock(&softc->ctl_lock); 2952 sync_info->status = CTL_GS_SYNC_NO_LUN; 2953 } 2954 /* 2955 * Get or set the sync interval. We're not bounds checking 2956 * in the set case, hopefully the user won't do something 2957 * silly. 2958 */ 2959 mtx_lock(&lun->lun_lock); 2960 mtx_unlock(&softc->ctl_lock); 2961 if (cmd == CTL_GETSYNC) 2962 sync_info->sync_interval = lun->sync_interval; 2963 else 2964 lun->sync_interval = sync_info->sync_interval; 2965 mtx_unlock(&lun->lun_lock); 2966 2967 sync_info->status = CTL_GS_SYNC_OK; 2968 2969 break; 2970 } 2971 case CTL_GETSTATS: { 2972 struct ctl_stats *stats; 2973 struct ctl_lun *lun; 2974 int i; 2975 2976 stats = (struct ctl_stats *)addr; 2977 2978 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2979 stats->alloc_len) { 2980 stats->status = CTL_SS_NEED_MORE_SPACE; 2981 stats->num_luns = softc->num_luns; 2982 break; 2983 } 2984 /* 2985 * XXX KDM no locking here. If the LUN list changes, 2986 * things can blow up. 2987 */ 2988 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2989 i++, lun = STAILQ_NEXT(lun, links)) { 2990 retval = copyout(&lun->stats, &stats->lun_stats[i], 2991 sizeof(lun->stats)); 2992 if (retval != 0) 2993 break; 2994 } 2995 stats->num_luns = softc->num_luns; 2996 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2997 softc->num_luns; 2998 stats->status = CTL_SS_OK; 2999#ifdef CTL_TIME_IO 3000 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3001#else 3002 stats->flags = CTL_STATS_FLAG_NONE; 3003#endif 3004 getnanouptime(&stats->timestamp); 3005 break; 3006 } 3007 case CTL_ERROR_INJECT: { 3008 struct ctl_error_desc *err_desc, *new_err_desc; 3009 struct ctl_lun *lun; 3010 3011 err_desc = (struct ctl_error_desc *)addr; 3012 3013 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3014 M_WAITOK | M_ZERO); 3015 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3016 3017 mtx_lock(&softc->ctl_lock); 3018 lun = softc->ctl_luns[err_desc->lun_id]; 3019 if (lun == NULL) { 3020 mtx_unlock(&softc->ctl_lock); 3021 free(new_err_desc, M_CTL); 3022 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3023 __func__, (uintmax_t)err_desc->lun_id); 3024 retval = EINVAL; 3025 break; 3026 } 3027 mtx_lock(&lun->lun_lock); 3028 mtx_unlock(&softc->ctl_lock); 3029 3030 /* 3031 * We could do some checking here to verify the validity 3032 * of the request, but given the complexity of error 3033 * injection requests, the checking logic would be fairly 3034 * complex. 3035 * 3036 * For now, if the request is invalid, it just won't get 3037 * executed and might get deleted. 3038 */ 3039 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3040 3041 /* 3042 * XXX KDM check to make sure the serial number is unique, 3043 * in case we somehow manage to wrap. That shouldn't 3044 * happen for a very long time, but it's the right thing to 3045 * do. 3046 */ 3047 new_err_desc->serial = lun->error_serial; 3048 err_desc->serial = lun->error_serial; 3049 lun->error_serial++; 3050 3051 mtx_unlock(&lun->lun_lock); 3052 break; 3053 } 3054 case CTL_ERROR_INJECT_DELETE: { 3055 struct ctl_error_desc *delete_desc, *desc, *desc2; 3056 struct ctl_lun *lun; 3057 int delete_done; 3058 3059 delete_desc = (struct ctl_error_desc *)addr; 3060 delete_done = 0; 3061 3062 mtx_lock(&softc->ctl_lock); 3063 lun = softc->ctl_luns[delete_desc->lun_id]; 3064 if (lun == NULL) { 3065 mtx_unlock(&softc->ctl_lock); 3066 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3067 __func__, (uintmax_t)delete_desc->lun_id); 3068 retval = EINVAL; 3069 break; 3070 } 3071 mtx_lock(&lun->lun_lock); 3072 mtx_unlock(&softc->ctl_lock); 3073 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3074 if (desc->serial != delete_desc->serial) 3075 continue; 3076 3077 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3078 links); 3079 free(desc, M_CTL); 3080 delete_done = 1; 3081 } 3082 mtx_unlock(&lun->lun_lock); 3083 if (delete_done == 0) { 3084 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3085 "error serial %ju on LUN %u\n", __func__, 3086 delete_desc->serial, delete_desc->lun_id); 3087 retval = EINVAL; 3088 break; 3089 } 3090 break; 3091 } 3092 case CTL_DUMP_STRUCTS: { 3093 int i, j, k; 3094 struct ctl_port *port; 3095 struct ctl_frontend *fe; 3096 3097 mtx_lock(&softc->ctl_lock); 3098 printf("CTL Persistent Reservation information start:\n"); 3099 for (i = 0; i < CTL_MAX_LUNS; i++) { 3100 struct ctl_lun *lun; 3101 3102 lun = softc->ctl_luns[i]; 3103 3104 if ((lun == NULL) 3105 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3106 continue; 3107 3108 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3109 if (lun->pr_keys[j] == NULL) 3110 continue; 3111 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3112 if (lun->pr_keys[j][k] == 0) 3113 continue; 3114 printf(" LUN %d port %d iid %d key " 3115 "%#jx\n", i, j, k, 3116 (uintmax_t)lun->pr_keys[j][k]); 3117 } 3118 } 3119 } 3120 printf("CTL Persistent Reservation information end\n"); 3121 printf("CTL Ports:\n"); 3122 STAILQ_FOREACH(port, &softc->port_list, links) { 3123 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3124 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3125 port->frontend->name, port->port_type, 3126 port->physical_port, port->virtual_port, 3127 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3128 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3129 if (port->wwpn_iid[j].in_use == 0 && 3130 port->wwpn_iid[j].wwpn == 0 && 3131 port->wwpn_iid[j].name == NULL) 3132 continue; 3133 3134 printf(" iid %u use %d WWPN %#jx '%s'\n", 3135 j, port->wwpn_iid[j].in_use, 3136 (uintmax_t)port->wwpn_iid[j].wwpn, 3137 port->wwpn_iid[j].name); 3138 } 3139 } 3140 printf("CTL Port information end\n"); 3141 mtx_unlock(&softc->ctl_lock); 3142 /* 3143 * XXX KDM calling this without a lock. We'd likely want 3144 * to drop the lock before calling the frontend's dump 3145 * routine anyway. 3146 */ 3147 printf("CTL Frontends:\n"); 3148 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3149 printf(" Frontend '%s'\n", fe->name); 3150 if (fe->fe_dump != NULL) 3151 fe->fe_dump(); 3152 } 3153 printf("CTL Frontend information end\n"); 3154 break; 3155 } 3156 case CTL_LUN_REQ: { 3157 struct ctl_lun_req *lun_req; 3158 struct ctl_backend_driver *backend; 3159 3160 lun_req = (struct ctl_lun_req *)addr; 3161 3162 backend = ctl_backend_find(lun_req->backend); 3163 if (backend == NULL) { 3164 lun_req->status = CTL_LUN_ERROR; 3165 snprintf(lun_req->error_str, 3166 sizeof(lun_req->error_str), 3167 "Backend \"%s\" not found.", 3168 lun_req->backend); 3169 break; 3170 } 3171 if (lun_req->num_be_args > 0) { 3172 lun_req->kern_be_args = ctl_copyin_args( 3173 lun_req->num_be_args, 3174 lun_req->be_args, 3175 lun_req->error_str, 3176 sizeof(lun_req->error_str)); 3177 if (lun_req->kern_be_args == NULL) { 3178 lun_req->status = CTL_LUN_ERROR; 3179 break; 3180 } 3181 } 3182 3183 retval = backend->ioctl(dev, cmd, addr, flag, td); 3184 3185 if (lun_req->num_be_args > 0) { 3186 ctl_copyout_args(lun_req->num_be_args, 3187 lun_req->kern_be_args); 3188 ctl_free_args(lun_req->num_be_args, 3189 lun_req->kern_be_args); 3190 } 3191 break; 3192 } 3193 case CTL_LUN_LIST: { 3194 struct sbuf *sb; 3195 struct ctl_lun *lun; 3196 struct ctl_lun_list *list; 3197 struct ctl_option *opt; 3198 3199 list = (struct ctl_lun_list *)addr; 3200 3201 /* 3202 * Allocate a fixed length sbuf here, based on the length 3203 * of the user's buffer. We could allocate an auto-extending 3204 * buffer, and then tell the user how much larger our 3205 * amount of data is than his buffer, but that presents 3206 * some problems: 3207 * 3208 * 1. The sbuf(9) routines use a blocking malloc, and so 3209 * we can't hold a lock while calling them with an 3210 * auto-extending buffer. 3211 * 3212 * 2. There is not currently a LUN reference counting 3213 * mechanism, outside of outstanding transactions on 3214 * the LUN's OOA queue. So a LUN could go away on us 3215 * while we're getting the LUN number, backend-specific 3216 * information, etc. Thus, given the way things 3217 * currently work, we need to hold the CTL lock while 3218 * grabbing LUN information. 3219 * 3220 * So, from the user's standpoint, the best thing to do is 3221 * allocate what he thinks is a reasonable buffer length, 3222 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3223 * double the buffer length and try again. (And repeat 3224 * that until he succeeds.) 3225 */ 3226 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3227 if (sb == NULL) { 3228 list->status = CTL_LUN_LIST_ERROR; 3229 snprintf(list->error_str, sizeof(list->error_str), 3230 "Unable to allocate %d bytes for LUN list", 3231 list->alloc_len); 3232 break; 3233 } 3234 3235 sbuf_printf(sb, "<ctllunlist>\n"); 3236 3237 mtx_lock(&softc->ctl_lock); 3238 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3239 mtx_lock(&lun->lun_lock); 3240 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3241 (uintmax_t)lun->lun); 3242 3243 /* 3244 * Bail out as soon as we see that we've overfilled 3245 * the buffer. 3246 */ 3247 if (retval != 0) 3248 break; 3249 3250 retval = sbuf_printf(sb, "\t<backend_type>%s" 3251 "</backend_type>\n", 3252 (lun->backend == NULL) ? "none" : 3253 lun->backend->name); 3254 3255 if (retval != 0) 3256 break; 3257 3258 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3259 lun->be_lun->lun_type); 3260 3261 if (retval != 0) 3262 break; 3263 3264 if (lun->backend == NULL) { 3265 retval = sbuf_printf(sb, "</lun>\n"); 3266 if (retval != 0) 3267 break; 3268 continue; 3269 } 3270 3271 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3272 (lun->be_lun->maxlba > 0) ? 3273 lun->be_lun->maxlba + 1 : 0); 3274 3275 if (retval != 0) 3276 break; 3277 3278 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3279 lun->be_lun->blocksize); 3280 3281 if (retval != 0) 3282 break; 3283 3284 retval = sbuf_printf(sb, "\t<serial_number>"); 3285 3286 if (retval != 0) 3287 break; 3288 3289 retval = ctl_sbuf_printf_esc(sb, 3290 lun->be_lun->serial_num, 3291 sizeof(lun->be_lun->serial_num)); 3292 3293 if (retval != 0) 3294 break; 3295 3296 retval = sbuf_printf(sb, "</serial_number>\n"); 3297 3298 if (retval != 0) 3299 break; 3300 3301 retval = sbuf_printf(sb, "\t<device_id>"); 3302 3303 if (retval != 0) 3304 break; 3305 3306 retval = ctl_sbuf_printf_esc(sb, 3307 lun->be_lun->device_id, 3308 sizeof(lun->be_lun->device_id)); 3309 3310 if (retval != 0) 3311 break; 3312 3313 retval = sbuf_printf(sb, "</device_id>\n"); 3314 3315 if (retval != 0) 3316 break; 3317 3318 if (lun->backend->lun_info != NULL) { 3319 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3320 if (retval != 0) 3321 break; 3322 } 3323 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3324 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3325 opt->name, opt->value, opt->name); 3326 if (retval != 0) 3327 break; 3328 } 3329 3330 retval = sbuf_printf(sb, "</lun>\n"); 3331 3332 if (retval != 0) 3333 break; 3334 mtx_unlock(&lun->lun_lock); 3335 } 3336 if (lun != NULL) 3337 mtx_unlock(&lun->lun_lock); 3338 mtx_unlock(&softc->ctl_lock); 3339 3340 if ((retval != 0) 3341 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3342 retval = 0; 3343 sbuf_delete(sb); 3344 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3345 snprintf(list->error_str, sizeof(list->error_str), 3346 "Out of space, %d bytes is too small", 3347 list->alloc_len); 3348 break; 3349 } 3350 3351 sbuf_finish(sb); 3352 3353 retval = copyout(sbuf_data(sb), list->lun_xml, 3354 sbuf_len(sb) + 1); 3355 3356 list->fill_len = sbuf_len(sb) + 1; 3357 list->status = CTL_LUN_LIST_OK; 3358 sbuf_delete(sb); 3359 break; 3360 } 3361 case CTL_ISCSI: { 3362 struct ctl_iscsi *ci; 3363 struct ctl_frontend *fe; 3364 3365 ci = (struct ctl_iscsi *)addr; 3366 3367 fe = ctl_frontend_find("iscsi"); 3368 if (fe == NULL) { 3369 ci->status = CTL_ISCSI_ERROR; 3370 snprintf(ci->error_str, sizeof(ci->error_str), 3371 "Frontend \"iscsi\" not found."); 3372 break; 3373 } 3374 3375 retval = fe->ioctl(dev, cmd, addr, flag, td); 3376 break; 3377 } 3378 case CTL_PORT_REQ: { 3379 struct ctl_req *req; 3380 struct ctl_frontend *fe; 3381 3382 req = (struct ctl_req *)addr; 3383 3384 fe = ctl_frontend_find(req->driver); 3385 if (fe == NULL) { 3386 req->status = CTL_LUN_ERROR; 3387 snprintf(req->error_str, sizeof(req->error_str), 3388 "Frontend \"%s\" not found.", req->driver); 3389 break; 3390 } 3391 if (req->num_args > 0) { 3392 req->kern_args = ctl_copyin_args(req->num_args, 3393 req->args, req->error_str, sizeof(req->error_str)); 3394 if (req->kern_args == NULL) { 3395 req->status = CTL_LUN_ERROR; 3396 break; 3397 } 3398 } 3399 3400 retval = fe->ioctl(dev, cmd, addr, flag, td); 3401 3402 if (req->num_args > 0) { 3403 ctl_copyout_args(req->num_args, req->kern_args); 3404 ctl_free_args(req->num_args, req->kern_args); 3405 } 3406 break; 3407 } 3408 case CTL_PORT_LIST: { 3409 struct sbuf *sb; 3410 struct ctl_port *port; 3411 struct ctl_lun_list *list; 3412 struct ctl_option *opt; 3413 int j; 3414 3415 list = (struct ctl_lun_list *)addr; 3416 3417 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3418 if (sb == NULL) { 3419 list->status = CTL_LUN_LIST_ERROR; 3420 snprintf(list->error_str, sizeof(list->error_str), 3421 "Unable to allocate %d bytes for LUN list", 3422 list->alloc_len); 3423 break; 3424 } 3425 3426 sbuf_printf(sb, "<ctlportlist>\n"); 3427 3428 mtx_lock(&softc->ctl_lock); 3429 STAILQ_FOREACH(port, &softc->port_list, links) { 3430 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3431 (uintmax_t)port->targ_port); 3432 3433 /* 3434 * Bail out as soon as we see that we've overfilled 3435 * the buffer. 3436 */ 3437 if (retval != 0) 3438 break; 3439 3440 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3441 "</frontend_type>\n", port->frontend->name); 3442 if (retval != 0) 3443 break; 3444 3445 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3446 port->port_type); 3447 if (retval != 0) 3448 break; 3449 3450 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3451 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3452 if (retval != 0) 3453 break; 3454 3455 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3456 port->port_name); 3457 if (retval != 0) 3458 break; 3459 3460 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3461 port->physical_port); 3462 if (retval != 0) 3463 break; 3464 3465 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3466 port->virtual_port); 3467 if (retval != 0) 3468 break; 3469 3470 if (port->target_devid != NULL) { 3471 sbuf_printf(sb, "\t<target>"); 3472 ctl_id_sbuf(port->target_devid, sb); 3473 sbuf_printf(sb, "</target>\n"); 3474 } 3475 3476 if (port->port_devid != NULL) { 3477 sbuf_printf(sb, "\t<port>"); 3478 ctl_id_sbuf(port->port_devid, sb); 3479 sbuf_printf(sb, "</port>\n"); 3480 } 3481 3482 if (port->port_info != NULL) { 3483 retval = port->port_info(port->onoff_arg, sb); 3484 if (retval != 0) 3485 break; 3486 } 3487 STAILQ_FOREACH(opt, &port->options, links) { 3488 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3489 opt->name, opt->value, opt->name); 3490 if (retval != 0) 3491 break; 3492 } 3493 3494 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3495 if (port->wwpn_iid[j].in_use == 0 || 3496 (port->wwpn_iid[j].wwpn == 0 && 3497 port->wwpn_iid[j].name == NULL)) 3498 continue; 3499 3500 if (port->wwpn_iid[j].name != NULL) 3501 retval = sbuf_printf(sb, 3502 "\t<initiator id=\"%u\">%s</initiator>\n", 3503 j, port->wwpn_iid[j].name); 3504 else 3505 retval = sbuf_printf(sb, 3506 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3507 j, port->wwpn_iid[j].wwpn); 3508 if (retval != 0) 3509 break; 3510 } 3511 if (retval != 0) 3512 break; 3513 3514 retval = sbuf_printf(sb, "</targ_port>\n"); 3515 if (retval != 0) 3516 break; 3517 } 3518 mtx_unlock(&softc->ctl_lock); 3519 3520 if ((retval != 0) 3521 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3522 retval = 0; 3523 sbuf_delete(sb); 3524 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3525 snprintf(list->error_str, sizeof(list->error_str), 3526 "Out of space, %d bytes is too small", 3527 list->alloc_len); 3528 break; 3529 } 3530 3531 sbuf_finish(sb); 3532 3533 retval = copyout(sbuf_data(sb), list->lun_xml, 3534 sbuf_len(sb) + 1); 3535 3536 list->fill_len = sbuf_len(sb) + 1; 3537 list->status = CTL_LUN_LIST_OK; 3538 sbuf_delete(sb); 3539 break; 3540 } 3541 default: { 3542 /* XXX KDM should we fix this? */ 3543#if 0 3544 struct ctl_backend_driver *backend; 3545 unsigned int type; 3546 int found; 3547 3548 found = 0; 3549 3550 /* 3551 * We encode the backend type as the ioctl type for backend 3552 * ioctls. So parse it out here, and then search for a 3553 * backend of this type. 3554 */ 3555 type = _IOC_TYPE(cmd); 3556 3557 STAILQ_FOREACH(backend, &softc->be_list, links) { 3558 if (backend->type == type) { 3559 found = 1; 3560 break; 3561 } 3562 } 3563 if (found == 0) { 3564 printf("ctl: unknown ioctl command %#lx or backend " 3565 "%d\n", cmd, type); 3566 retval = EINVAL; 3567 break; 3568 } 3569 retval = backend->ioctl(dev, cmd, addr, flag, td); 3570#endif 3571 retval = ENOTTY; 3572 break; 3573 } 3574 } 3575 return (retval); 3576} 3577 3578uint32_t 3579ctl_get_initindex(struct ctl_nexus *nexus) 3580{ 3581 if (nexus->targ_port < CTL_MAX_PORTS) 3582 return (nexus->initid.id + 3583 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3584 else 3585 return (nexus->initid.id + 3586 ((nexus->targ_port - CTL_MAX_PORTS) * 3587 CTL_MAX_INIT_PER_PORT)); 3588} 3589 3590uint32_t 3591ctl_get_resindex(struct ctl_nexus *nexus) 3592{ 3593 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3594} 3595 3596uint32_t 3597ctl_port_idx(int port_num) 3598{ 3599 if (port_num < CTL_MAX_PORTS) 3600 return(port_num); 3601 else 3602 return(port_num - CTL_MAX_PORTS); 3603} 3604 3605static uint32_t 3606ctl_map_lun(struct ctl_softc *softc, int port_num, uint32_t lun_id) 3607{ 3608 struct ctl_port *port; 3609 3610 port = softc->ctl_ports[ctl_port_idx(port_num)]; 3611 if (port == NULL) 3612 return (UINT32_MAX); 3613 if (port->lun_map == NULL) 3614 return (lun_id); 3615 return (port->lun_map(port->targ_lun_arg, lun_id)); 3616} 3617 3618static uint32_t 3619ctl_map_lun_back(struct ctl_softc *softc, int port_num, uint32_t lun_id) 3620{ 3621 struct ctl_port *port; 3622 uint32_t i; 3623 3624 port = softc->ctl_ports[ctl_port_idx(port_num)]; 3625 if (port->lun_map == NULL) 3626 return (lun_id); 3627 for (i = 0; i < CTL_MAX_LUNS; i++) { 3628 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3629 return (i); 3630 } 3631 return (UINT32_MAX); 3632} 3633 3634/* 3635 * Note: This only works for bitmask sizes that are at least 32 bits, and 3636 * that are a power of 2. 3637 */ 3638int 3639ctl_ffz(uint32_t *mask, uint32_t size) 3640{ 3641 uint32_t num_chunks, num_pieces; 3642 int i, j; 3643 3644 num_chunks = (size >> 5); 3645 if (num_chunks == 0) 3646 num_chunks++; 3647 num_pieces = MIN((sizeof(uint32_t) * 8), size); 3648 3649 for (i = 0; i < num_chunks; i++) { 3650 for (j = 0; j < num_pieces; j++) { 3651 if ((mask[i] & (1 << j)) == 0) 3652 return ((i << 5) + j); 3653 } 3654 } 3655 3656 return (-1); 3657} 3658 3659int 3660ctl_set_mask(uint32_t *mask, uint32_t bit) 3661{ 3662 uint32_t chunk, piece; 3663 3664 chunk = bit >> 5; 3665 piece = bit % (sizeof(uint32_t) * 8); 3666 3667 if ((mask[chunk] & (1 << piece)) != 0) 3668 return (-1); 3669 else 3670 mask[chunk] |= (1 << piece); 3671 3672 return (0); 3673} 3674 3675int 3676ctl_clear_mask(uint32_t *mask, uint32_t bit) 3677{ 3678 uint32_t chunk, piece; 3679 3680 chunk = bit >> 5; 3681 piece = bit % (sizeof(uint32_t) * 8); 3682 3683 if ((mask[chunk] & (1 << piece)) == 0) 3684 return (-1); 3685 else 3686 mask[chunk] &= ~(1 << piece); 3687 3688 return (0); 3689} 3690 3691int 3692ctl_is_set(uint32_t *mask, uint32_t bit) 3693{ 3694 uint32_t chunk, piece; 3695 3696 chunk = bit >> 5; 3697 piece = bit % (sizeof(uint32_t) * 8); 3698 3699 if ((mask[chunk] & (1 << piece)) == 0) 3700 return (0); 3701 else 3702 return (1); 3703} 3704 3705static uint64_t 3706ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3707{ 3708 uint64_t *t; 3709 3710 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3711 if (t == NULL) 3712 return (0); 3713 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3714} 3715 3716static void 3717ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3718{ 3719 uint64_t *t; 3720 3721 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3722 if (t == NULL) 3723 return; 3724 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3725} 3726 3727static void 3728ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3729{ 3730 uint64_t *p; 3731 u_int i; 3732 3733 i = residx/CTL_MAX_INIT_PER_PORT; 3734 if (lun->pr_keys[i] != NULL) 3735 return; 3736 mtx_unlock(&lun->lun_lock); 3737 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3738 M_WAITOK | M_ZERO); 3739 mtx_lock(&lun->lun_lock); 3740 if (lun->pr_keys[i] == NULL) 3741 lun->pr_keys[i] = p; 3742 else 3743 free(p, M_CTL); 3744} 3745 3746static void 3747ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3748{ 3749 uint64_t *t; 3750 3751 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3752 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3753 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3754} 3755 3756/* 3757 * ctl_softc, pool_name, total_ctl_io are passed in. 3758 * npool is passed out. 3759 */ 3760int 3761ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3762 uint32_t total_ctl_io, void **npool) 3763{ 3764#ifdef IO_POOLS 3765 struct ctl_io_pool *pool; 3766 3767 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3768 M_NOWAIT | M_ZERO); 3769 if (pool == NULL) 3770 return (ENOMEM); 3771 3772 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3773 pool->ctl_softc = ctl_softc; 3774 pool->zone = uma_zsecond_create(pool->name, NULL, 3775 NULL, NULL, NULL, ctl_softc->io_zone); 3776 /* uma_prealloc(pool->zone, total_ctl_io); */ 3777 3778 *npool = pool; 3779#else 3780 *npool = ctl_softc->io_zone; 3781#endif 3782 return (0); 3783} 3784 3785void 3786ctl_pool_free(struct ctl_io_pool *pool) 3787{ 3788 3789 if (pool == NULL) 3790 return; 3791 3792#ifdef IO_POOLS 3793 uma_zdestroy(pool->zone); 3794 free(pool, M_CTL); 3795#endif 3796} 3797 3798union ctl_io * 3799ctl_alloc_io(void *pool_ref) 3800{ 3801 union ctl_io *io; 3802#ifdef IO_POOLS 3803 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3804 3805 io = uma_zalloc(pool->zone, M_WAITOK); 3806#else 3807 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3808#endif 3809 if (io != NULL) 3810 io->io_hdr.pool = pool_ref; 3811 return (io); 3812} 3813 3814union ctl_io * 3815ctl_alloc_io_nowait(void *pool_ref) 3816{ 3817 union ctl_io *io; 3818#ifdef IO_POOLS 3819 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3820 3821 io = uma_zalloc(pool->zone, M_NOWAIT); 3822#else 3823 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3824#endif 3825 if (io != NULL) 3826 io->io_hdr.pool = pool_ref; 3827 return (io); 3828} 3829 3830void 3831ctl_free_io(union ctl_io *io) 3832{ 3833#ifdef IO_POOLS 3834 struct ctl_io_pool *pool; 3835#endif 3836 3837 if (io == NULL) 3838 return; 3839 3840#ifdef IO_POOLS 3841 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3842 uma_zfree(pool->zone, io); 3843#else 3844 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3845#endif 3846} 3847 3848void 3849ctl_zero_io(union ctl_io *io) 3850{ 3851 void *pool_ref; 3852 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * May need to preserve linked list pointers at some point too. 3858 */ 3859 pool_ref = io->io_hdr.pool; 3860 memset(io, 0, sizeof(*io)); 3861 io->io_hdr.pool = pool_ref; 3862} 3863 3864/* 3865 * This routine is currently used for internal copies of ctl_ios that need 3866 * to persist for some reason after we've already returned status to the 3867 * FETD. (Thus the flag set.) 3868 * 3869 * XXX XXX 3870 * Note that this makes a blind copy of all fields in the ctl_io, except 3871 * for the pool reference. This includes any memory that has been 3872 * allocated! That memory will no longer be valid after done has been 3873 * called, so this would be VERY DANGEROUS for command that actually does 3874 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3875 * start and stop commands, which don't transfer any data, so this is not a 3876 * problem. If it is used for anything else, the caller would also need to 3877 * allocate data buffer space and this routine would need to be modified to 3878 * copy the data buffer(s) as well. 3879 */ 3880void 3881ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3882{ 3883 void *pool_ref; 3884 3885 if ((src == NULL) 3886 || (dest == NULL)) 3887 return; 3888 3889 /* 3890 * May need to preserve linked list pointers at some point too. 3891 */ 3892 pool_ref = dest->io_hdr.pool; 3893 3894 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3895 3896 dest->io_hdr.pool = pool_ref; 3897 /* 3898 * We need to know that this is an internal copy, and doesn't need 3899 * to get passed back to the FETD that allocated it. 3900 */ 3901 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3902} 3903 3904int 3905ctl_expand_number(const char *buf, uint64_t *num) 3906{ 3907 char *endptr; 3908 uint64_t number; 3909 unsigned shift; 3910 3911 number = strtoq(buf, &endptr, 0); 3912 3913 switch (tolower((unsigned char)*endptr)) { 3914 case 'e': 3915 shift = 60; 3916 break; 3917 case 'p': 3918 shift = 50; 3919 break; 3920 case 't': 3921 shift = 40; 3922 break; 3923 case 'g': 3924 shift = 30; 3925 break; 3926 case 'm': 3927 shift = 20; 3928 break; 3929 case 'k': 3930 shift = 10; 3931 break; 3932 case 'b': 3933 case '\0': /* No unit. */ 3934 *num = number; 3935 return (0); 3936 default: 3937 /* Unrecognized unit. */ 3938 return (-1); 3939 } 3940 3941 if ((number << shift) >> shift != number) { 3942 /* Overflow */ 3943 return (-1); 3944 } 3945 *num = number << shift; 3946 return (0); 3947} 3948 3949 3950/* 3951 * This routine could be used in the future to load default and/or saved 3952 * mode page parameters for a particuar lun. 3953 */ 3954static int 3955ctl_init_page_index(struct ctl_lun *lun) 3956{ 3957 int i; 3958 struct ctl_page_index *page_index; 3959 const char *value; 3960 uint64_t ival; 3961 3962 memcpy(&lun->mode_pages.index, page_index_template, 3963 sizeof(page_index_template)); 3964 3965 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3966 3967 page_index = &lun->mode_pages.index[i]; 3968 /* 3969 * If this is a disk-only mode page, there's no point in 3970 * setting it up. For some pages, we have to have some 3971 * basic information about the disk in order to calculate the 3972 * mode page data. 3973 */ 3974 if ((lun->be_lun->lun_type != T_DIRECT) 3975 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3976 continue; 3977 3978 switch (page_index->page_code & SMPH_PC_MASK) { 3979 case SMS_RW_ERROR_RECOVERY_PAGE: { 3980 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3981 panic("subpage is incorrect!"); 3982 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3983 &rw_er_page_default, 3984 sizeof(rw_er_page_default)); 3985 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3986 &rw_er_page_changeable, 3987 sizeof(rw_er_page_changeable)); 3988 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3989 &rw_er_page_default, 3990 sizeof(rw_er_page_default)); 3991 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3992 &rw_er_page_default, 3993 sizeof(rw_er_page_default)); 3994 page_index->page_data = 3995 (uint8_t *)lun->mode_pages.rw_er_page; 3996 break; 3997 } 3998 case SMS_FORMAT_DEVICE_PAGE: { 3999 struct scsi_format_page *format_page; 4000 4001 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4002 panic("subpage is incorrect!"); 4003 4004 /* 4005 * Sectors per track are set above. Bytes per 4006 * sector need to be set here on a per-LUN basis. 4007 */ 4008 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4009 &format_page_default, 4010 sizeof(format_page_default)); 4011 memcpy(&lun->mode_pages.format_page[ 4012 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4013 sizeof(format_page_changeable)); 4014 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4015 &format_page_default, 4016 sizeof(format_page_default)); 4017 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4018 &format_page_default, 4019 sizeof(format_page_default)); 4020 4021 format_page = &lun->mode_pages.format_page[ 4022 CTL_PAGE_CURRENT]; 4023 scsi_ulto2b(lun->be_lun->blocksize, 4024 format_page->bytes_per_sector); 4025 4026 format_page = &lun->mode_pages.format_page[ 4027 CTL_PAGE_DEFAULT]; 4028 scsi_ulto2b(lun->be_lun->blocksize, 4029 format_page->bytes_per_sector); 4030 4031 format_page = &lun->mode_pages.format_page[ 4032 CTL_PAGE_SAVED]; 4033 scsi_ulto2b(lun->be_lun->blocksize, 4034 format_page->bytes_per_sector); 4035 4036 page_index->page_data = 4037 (uint8_t *)lun->mode_pages.format_page; 4038 break; 4039 } 4040 case SMS_RIGID_DISK_PAGE: { 4041 struct scsi_rigid_disk_page *rigid_disk_page; 4042 uint32_t sectors_per_cylinder; 4043 uint64_t cylinders; 4044#ifndef __XSCALE__ 4045 int shift; 4046#endif /* !__XSCALE__ */ 4047 4048 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4049 panic("invalid subpage value %d", 4050 page_index->subpage); 4051 4052 /* 4053 * Rotation rate and sectors per track are set 4054 * above. We calculate the cylinders here based on 4055 * capacity. Due to the number of heads and 4056 * sectors per track we're using, smaller arrays 4057 * may turn out to have 0 cylinders. Linux and 4058 * FreeBSD don't pay attention to these mode pages 4059 * to figure out capacity, but Solaris does. It 4060 * seems to deal with 0 cylinders just fine, and 4061 * works out a fake geometry based on the capacity. 4062 */ 4063 memcpy(&lun->mode_pages.rigid_disk_page[ 4064 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4065 sizeof(rigid_disk_page_default)); 4066 memcpy(&lun->mode_pages.rigid_disk_page[ 4067 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4068 sizeof(rigid_disk_page_changeable)); 4069 4070 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4071 CTL_DEFAULT_HEADS; 4072 4073 /* 4074 * The divide method here will be more accurate, 4075 * probably, but results in floating point being 4076 * used in the kernel on i386 (__udivdi3()). On the 4077 * XScale, though, __udivdi3() is implemented in 4078 * software. 4079 * 4080 * The shift method for cylinder calculation is 4081 * accurate if sectors_per_cylinder is a power of 4082 * 2. Otherwise it might be slightly off -- you 4083 * might have a bit of a truncation problem. 4084 */ 4085#ifdef __XSCALE__ 4086 cylinders = (lun->be_lun->maxlba + 1) / 4087 sectors_per_cylinder; 4088#else 4089 for (shift = 31; shift > 0; shift--) { 4090 if (sectors_per_cylinder & (1 << shift)) 4091 break; 4092 } 4093 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4094#endif 4095 4096 /* 4097 * We've basically got 3 bytes, or 24 bits for the 4098 * cylinder size in the mode page. If we're over, 4099 * just round down to 2^24. 4100 */ 4101 if (cylinders > 0xffffff) 4102 cylinders = 0xffffff; 4103 4104 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4105 CTL_PAGE_DEFAULT]; 4106 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4107 4108 if ((value = ctl_get_opt(&lun->be_lun->options, 4109 "rpm")) != NULL) { 4110 scsi_ulto2b(strtol(value, NULL, 0), 4111 rigid_disk_page->rotation_rate); 4112 } 4113 4114 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4115 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4116 sizeof(rigid_disk_page_default)); 4117 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4118 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4119 sizeof(rigid_disk_page_default)); 4120 4121 page_index->page_data = 4122 (uint8_t *)lun->mode_pages.rigid_disk_page; 4123 break; 4124 } 4125 case SMS_CACHING_PAGE: { 4126 struct scsi_caching_page *caching_page; 4127 4128 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4129 panic("invalid subpage value %d", 4130 page_index->subpage); 4131 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4132 &caching_page_default, 4133 sizeof(caching_page_default)); 4134 memcpy(&lun->mode_pages.caching_page[ 4135 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4136 sizeof(caching_page_changeable)); 4137 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4138 &caching_page_default, 4139 sizeof(caching_page_default)); 4140 caching_page = &lun->mode_pages.caching_page[ 4141 CTL_PAGE_SAVED]; 4142 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4143 if (value != NULL && strcmp(value, "off") == 0) 4144 caching_page->flags1 &= ~SCP_WCE; 4145 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4146 if (value != NULL && strcmp(value, "off") == 0) 4147 caching_page->flags1 |= SCP_RCD; 4148 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4149 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4150 sizeof(caching_page_default)); 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.caching_page; 4153 break; 4154 } 4155 case SMS_CONTROL_MODE_PAGE: { 4156 struct scsi_control_page *control_page; 4157 4158 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4159 panic("invalid subpage value %d", 4160 page_index->subpage); 4161 4162 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4163 &control_page_default, 4164 sizeof(control_page_default)); 4165 memcpy(&lun->mode_pages.control_page[ 4166 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4167 sizeof(control_page_changeable)); 4168 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4169 &control_page_default, 4170 sizeof(control_page_default)); 4171 control_page = &lun->mode_pages.control_page[ 4172 CTL_PAGE_SAVED]; 4173 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4174 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4175 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4176 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4177 } 4178 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4179 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4180 sizeof(control_page_default)); 4181 page_index->page_data = 4182 (uint8_t *)lun->mode_pages.control_page; 4183 break; 4184 4185 } 4186 case SMS_INFO_EXCEPTIONS_PAGE: { 4187 switch (page_index->subpage) { 4188 case SMS_SUBPAGE_PAGE_0: 4189 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4190 &ie_page_default, 4191 sizeof(ie_page_default)); 4192 memcpy(&lun->mode_pages.ie_page[ 4193 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4194 sizeof(ie_page_changeable)); 4195 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4196 &ie_page_default, 4197 sizeof(ie_page_default)); 4198 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4199 &ie_page_default, 4200 sizeof(ie_page_default)); 4201 page_index->page_data = 4202 (uint8_t *)lun->mode_pages.ie_page; 4203 break; 4204 case 0x02: { 4205 struct ctl_logical_block_provisioning_page *page; 4206 4207 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4208 &lbp_page_default, 4209 sizeof(lbp_page_default)); 4210 memcpy(&lun->mode_pages.lbp_page[ 4211 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4212 sizeof(lbp_page_changeable)); 4213 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4214 &lbp_page_default, 4215 sizeof(lbp_page_default)); 4216 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4217 value = ctl_get_opt(&lun->be_lun->options, 4218 "avail-threshold"); 4219 if (value != NULL && 4220 ctl_expand_number(value, &ival) == 0) { 4221 page->descr[0].flags |= SLBPPD_ENABLED | 4222 SLBPPD_ARMING_DEC; 4223 if (lun->be_lun->blocksize) 4224 ival /= lun->be_lun->blocksize; 4225 else 4226 ival /= 512; 4227 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4228 page->descr[0].count); 4229 } 4230 value = ctl_get_opt(&lun->be_lun->options, 4231 "used-threshold"); 4232 if (value != NULL && 4233 ctl_expand_number(value, &ival) == 0) { 4234 page->descr[1].flags |= SLBPPD_ENABLED | 4235 SLBPPD_ARMING_INC; 4236 if (lun->be_lun->blocksize) 4237 ival /= lun->be_lun->blocksize; 4238 else 4239 ival /= 512; 4240 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4241 page->descr[1].count); 4242 } 4243 value = ctl_get_opt(&lun->be_lun->options, 4244 "pool-avail-threshold"); 4245 if (value != NULL && 4246 ctl_expand_number(value, &ival) == 0) { 4247 page->descr[2].flags |= SLBPPD_ENABLED | 4248 SLBPPD_ARMING_DEC; 4249 if (lun->be_lun->blocksize) 4250 ival /= lun->be_lun->blocksize; 4251 else 4252 ival /= 512; 4253 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4254 page->descr[2].count); 4255 } 4256 value = ctl_get_opt(&lun->be_lun->options, 4257 "pool-used-threshold"); 4258 if (value != NULL && 4259 ctl_expand_number(value, &ival) == 0) { 4260 page->descr[3].flags |= SLBPPD_ENABLED | 4261 SLBPPD_ARMING_INC; 4262 if (lun->be_lun->blocksize) 4263 ival /= lun->be_lun->blocksize; 4264 else 4265 ival /= 512; 4266 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4267 page->descr[3].count); 4268 } 4269 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4270 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4271 sizeof(lbp_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.lbp_page; 4274 }} 4275 break; 4276 } 4277 case SMS_VENDOR_SPECIFIC_PAGE:{ 4278 switch (page_index->subpage) { 4279 case DBGCNF_SUBPAGE_CODE: { 4280 struct copan_debugconf_subpage *current_page, 4281 *saved_page; 4282 4283 memcpy(&lun->mode_pages.debugconf_subpage[ 4284 CTL_PAGE_CURRENT], 4285 &debugconf_page_default, 4286 sizeof(debugconf_page_default)); 4287 memcpy(&lun->mode_pages.debugconf_subpage[ 4288 CTL_PAGE_CHANGEABLE], 4289 &debugconf_page_changeable, 4290 sizeof(debugconf_page_changeable)); 4291 memcpy(&lun->mode_pages.debugconf_subpage[ 4292 CTL_PAGE_DEFAULT], 4293 &debugconf_page_default, 4294 sizeof(debugconf_page_default)); 4295 memcpy(&lun->mode_pages.debugconf_subpage[ 4296 CTL_PAGE_SAVED], 4297 &debugconf_page_default, 4298 sizeof(debugconf_page_default)); 4299 page_index->page_data = 4300 (uint8_t *)lun->mode_pages.debugconf_subpage; 4301 4302 current_page = (struct copan_debugconf_subpage *) 4303 (page_index->page_data + 4304 (page_index->page_len * 4305 CTL_PAGE_CURRENT)); 4306 saved_page = (struct copan_debugconf_subpage *) 4307 (page_index->page_data + 4308 (page_index->page_len * 4309 CTL_PAGE_SAVED)); 4310 break; 4311 } 4312 default: 4313 panic("invalid subpage value %d", 4314 page_index->subpage); 4315 break; 4316 } 4317 break; 4318 } 4319 default: 4320 panic("invalid page value %d", 4321 page_index->page_code & SMPH_PC_MASK); 4322 break; 4323 } 4324 } 4325 4326 return (CTL_RETVAL_COMPLETE); 4327} 4328 4329static int 4330ctl_init_log_page_index(struct ctl_lun *lun) 4331{ 4332 struct ctl_page_index *page_index; 4333 int i, j, k, prev; 4334 4335 memcpy(&lun->log_pages.index, log_page_index_template, 4336 sizeof(log_page_index_template)); 4337 4338 prev = -1; 4339 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4340 4341 page_index = &lun->log_pages.index[i]; 4342 /* 4343 * If this is a disk-only mode page, there's no point in 4344 * setting it up. For some pages, we have to have some 4345 * basic information about the disk in order to calculate the 4346 * mode page data. 4347 */ 4348 if ((lun->be_lun->lun_type != T_DIRECT) 4349 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4350 continue; 4351 4352 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4353 lun->backend->lun_attr == NULL) 4354 continue; 4355 4356 if (page_index->page_code != prev) { 4357 lun->log_pages.pages_page[j] = page_index->page_code; 4358 prev = page_index->page_code; 4359 j++; 4360 } 4361 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4362 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4363 k++; 4364 } 4365 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4366 lun->log_pages.index[0].page_len = j; 4367 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4368 lun->log_pages.index[1].page_len = k * 2; 4369 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4370 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4371 4372 return (CTL_RETVAL_COMPLETE); 4373} 4374 4375static int 4376hex2bin(const char *str, uint8_t *buf, int buf_size) 4377{ 4378 int i; 4379 u_char c; 4380 4381 memset(buf, 0, buf_size); 4382 while (isspace(str[0])) 4383 str++; 4384 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4385 str += 2; 4386 buf_size *= 2; 4387 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4388 c = str[i]; 4389 if (isdigit(c)) 4390 c -= '0'; 4391 else if (isalpha(c)) 4392 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4393 else 4394 break; 4395 if (c >= 16) 4396 break; 4397 if ((i & 1) == 0) 4398 buf[i / 2] |= (c << 4); 4399 else 4400 buf[i / 2] |= c; 4401 } 4402 return ((i + 1) / 2); 4403} 4404 4405/* 4406 * LUN allocation. 4407 * 4408 * Requirements: 4409 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4410 * wants us to allocate the LUN and he can block. 4411 * - ctl_softc is always set 4412 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4413 * 4414 * Returns 0 for success, non-zero (errno) for failure. 4415 */ 4416static int 4417ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4418 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4419{ 4420 struct ctl_lun *nlun, *lun; 4421 struct ctl_port *port; 4422 struct scsi_vpd_id_descriptor *desc; 4423 struct scsi_vpd_id_t10 *t10id; 4424 const char *eui, *naa, *scsiname, *vendor, *value; 4425 int lun_number, i, lun_malloced; 4426 int devidlen, idlen1, idlen2 = 0, len; 4427 4428 if (be_lun == NULL) 4429 return (EINVAL); 4430 4431 /* 4432 * We currently only support Direct Access or Processor LUN types. 4433 */ 4434 switch (be_lun->lun_type) { 4435 case T_DIRECT: 4436 break; 4437 case T_PROCESSOR: 4438 break; 4439 case T_SEQUENTIAL: 4440 case T_CHANGER: 4441 default: 4442 be_lun->lun_config_status(be_lun->be_lun, 4443 CTL_LUN_CONFIG_FAILURE); 4444 break; 4445 } 4446 if (ctl_lun == NULL) { 4447 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4448 lun_malloced = 1; 4449 } else { 4450 lun_malloced = 0; 4451 lun = ctl_lun; 4452 } 4453 4454 memset(lun, 0, sizeof(*lun)); 4455 if (lun_malloced) 4456 lun->flags = CTL_LUN_MALLOCED; 4457 4458 /* Generate LUN ID. */ 4459 devidlen = max(CTL_DEVID_MIN_LEN, 4460 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4461 idlen1 = sizeof(*t10id) + devidlen; 4462 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4463 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4464 if (scsiname != NULL) { 4465 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4466 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4467 } 4468 eui = ctl_get_opt(&be_lun->options, "eui"); 4469 if (eui != NULL) { 4470 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4471 } 4472 naa = ctl_get_opt(&be_lun->options, "naa"); 4473 if (naa != NULL) { 4474 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4475 } 4476 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4477 M_CTL, M_WAITOK | M_ZERO); 4478 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4479 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4480 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4481 desc->length = idlen1; 4482 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4483 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4484 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4485 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4486 } else { 4487 strncpy(t10id->vendor, vendor, 4488 min(sizeof(t10id->vendor), strlen(vendor))); 4489 } 4490 strncpy((char *)t10id->vendor_spec_id, 4491 (char *)be_lun->device_id, devidlen); 4492 if (scsiname != NULL) { 4493 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4494 desc->length); 4495 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4496 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4497 SVPD_ID_TYPE_SCSI_NAME; 4498 desc->length = idlen2; 4499 strlcpy(desc->identifier, scsiname, idlen2); 4500 } 4501 if (eui != NULL) { 4502 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4503 desc->length); 4504 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4505 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4506 SVPD_ID_TYPE_EUI64; 4507 desc->length = hex2bin(eui, desc->identifier, 16); 4508 desc->length = desc->length > 12 ? 16 : 4509 (desc->length > 8 ? 12 : 8); 4510 len -= 16 - desc->length; 4511 } 4512 if (naa != NULL) { 4513 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4514 desc->length); 4515 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4516 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4517 SVPD_ID_TYPE_NAA; 4518 desc->length = hex2bin(naa, desc->identifier, 16); 4519 desc->length = desc->length > 8 ? 16 : 8; 4520 len -= 16 - desc->length; 4521 } 4522 lun->lun_devid->len = len; 4523 4524 mtx_lock(&ctl_softc->ctl_lock); 4525 /* 4526 * See if the caller requested a particular LUN number. If so, see 4527 * if it is available. Otherwise, allocate the first available LUN. 4528 */ 4529 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4530 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4531 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4532 mtx_unlock(&ctl_softc->ctl_lock); 4533 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4534 printf("ctl: requested LUN ID %d is higher " 4535 "than CTL_MAX_LUNS - 1 (%d)\n", 4536 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4537 } else { 4538 /* 4539 * XXX KDM return an error, or just assign 4540 * another LUN ID in this case?? 4541 */ 4542 printf("ctl: requested LUN ID %d is already " 4543 "in use\n", be_lun->req_lun_id); 4544 } 4545 if (lun->flags & CTL_LUN_MALLOCED) 4546 free(lun, M_CTL); 4547 be_lun->lun_config_status(be_lun->be_lun, 4548 CTL_LUN_CONFIG_FAILURE); 4549 return (ENOSPC); 4550 } 4551 lun_number = be_lun->req_lun_id; 4552 } else { 4553 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4554 if (lun_number == -1) { 4555 mtx_unlock(&ctl_softc->ctl_lock); 4556 printf("ctl: can't allocate LUN on target %ju, out of " 4557 "LUNs\n", (uintmax_t)target_id.id); 4558 if (lun->flags & CTL_LUN_MALLOCED) 4559 free(lun, M_CTL); 4560 be_lun->lun_config_status(be_lun->be_lun, 4561 CTL_LUN_CONFIG_FAILURE); 4562 return (ENOSPC); 4563 } 4564 } 4565 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4566 4567 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4568 lun->target = target_id; 4569 lun->lun = lun_number; 4570 lun->be_lun = be_lun; 4571 /* 4572 * The processor LUN is always enabled. Disk LUNs come on line 4573 * disabled, and must be enabled by the backend. 4574 */ 4575 lun->flags |= CTL_LUN_DISABLED; 4576 lun->backend = be_lun->be; 4577 be_lun->ctl_lun = lun; 4578 be_lun->lun_id = lun_number; 4579 atomic_add_int(&be_lun->be->num_luns, 1); 4580 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4581 lun->flags |= CTL_LUN_OFFLINE; 4582 4583 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4584 lun->flags |= CTL_LUN_STOPPED; 4585 4586 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4587 lun->flags |= CTL_LUN_INOPERABLE; 4588 4589 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4590 lun->flags |= CTL_LUN_PRIMARY_SC; 4591 4592 value = ctl_get_opt(&be_lun->options, "readonly"); 4593 if (value != NULL && strcmp(value, "on") == 0) 4594 lun->flags |= CTL_LUN_READONLY; 4595 4596 lun->serseq = CTL_LUN_SERSEQ_OFF; 4597 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4598 lun->serseq = CTL_LUN_SERSEQ_READ; 4599 value = ctl_get_opt(&be_lun->options, "serseq"); 4600 if (value != NULL && strcmp(value, "on") == 0) 4601 lun->serseq = CTL_LUN_SERSEQ_ON; 4602 else if (value != NULL && strcmp(value, "read") == 0) 4603 lun->serseq = CTL_LUN_SERSEQ_READ; 4604 else if (value != NULL && strcmp(value, "off") == 0) 4605 lun->serseq = CTL_LUN_SERSEQ_OFF; 4606 4607 lun->ctl_softc = ctl_softc; 4608 TAILQ_INIT(&lun->ooa_queue); 4609 TAILQ_INIT(&lun->blocked_queue); 4610 STAILQ_INIT(&lun->error_list); 4611 ctl_tpc_lun_init(lun); 4612 4613 /* 4614 * Initialize the mode and log page index. 4615 */ 4616 ctl_init_page_index(lun); 4617 ctl_init_log_page_index(lun); 4618 4619 /* 4620 * Now, before we insert this lun on the lun list, set the lun 4621 * inventory changed UA for all other luns. 4622 */ 4623 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4624 mtx_lock(&nlun->lun_lock); 4625 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4626 mtx_unlock(&nlun->lun_lock); 4627 } 4628 4629 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4630 4631 ctl_softc->ctl_luns[lun_number] = lun; 4632 4633 ctl_softc->num_luns++; 4634 4635 /* Setup statistics gathering */ 4636 lun->stats.device_type = be_lun->lun_type; 4637 lun->stats.lun_number = lun_number; 4638 if (lun->stats.device_type == T_DIRECT) 4639 lun->stats.blocksize = be_lun->blocksize; 4640 else 4641 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4642 for (i = 0;i < CTL_MAX_PORTS;i++) 4643 lun->stats.ports[i].targ_port = i; 4644 4645 mtx_unlock(&ctl_softc->ctl_lock); 4646 4647 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4648 4649 /* 4650 * Run through each registered FETD and bring it online if it isn't 4651 * already. Enable the target ID if it hasn't been enabled, and 4652 * enable this particular LUN. 4653 */ 4654 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4655 int retval; 4656 4657 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4658 if (retval != 0) { 4659 printf("ctl_alloc_lun: FETD %s port %d returned error " 4660 "%d for lun_enable on target %ju lun %d\n", 4661 port->port_name, port->targ_port, retval, 4662 (uintmax_t)target_id.id, lun_number); 4663 } else 4664 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4665 } 4666 return (0); 4667} 4668 4669/* 4670 * Delete a LUN. 4671 * Assumptions: 4672 * - LUN has already been marked invalid and any pending I/O has been taken 4673 * care of. 4674 */ 4675static int 4676ctl_free_lun(struct ctl_lun *lun) 4677{ 4678 struct ctl_softc *softc; 4679#if 0 4680 struct ctl_port *port; 4681#endif 4682 struct ctl_lun *nlun; 4683 int i; 4684 4685 softc = lun->ctl_softc; 4686 4687 mtx_assert(&softc->ctl_lock, MA_OWNED); 4688 4689 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4690 4691 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4692 4693 softc->ctl_luns[lun->lun] = NULL; 4694 4695 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4696 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4697 4698 softc->num_luns--; 4699 4700 /* 4701 * XXX KDM this scheme only works for a single target/multiple LUN 4702 * setup. It needs to be revamped for a multiple target scheme. 4703 * 4704 * XXX KDM this results in port->lun_disable() getting called twice, 4705 * once when ctl_disable_lun() is called, and a second time here. 4706 * We really need to re-think the LUN disable semantics. There 4707 * should probably be several steps/levels to LUN removal: 4708 * - disable 4709 * - invalidate 4710 * - free 4711 * 4712 * Right now we only have a disable method when communicating to 4713 * the front end ports, at least for individual LUNs. 4714 */ 4715#if 0 4716 STAILQ_FOREACH(port, &softc->port_list, links) { 4717 int retval; 4718 4719 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4720 lun->lun); 4721 if (retval != 0) { 4722 printf("ctl_free_lun: FETD %s port %d returned error " 4723 "%d for lun_disable on target %ju lun %jd\n", 4724 port->port_name, port->targ_port, retval, 4725 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4726 } 4727 4728 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4729 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4730 4731 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4732 if (retval != 0) { 4733 printf("ctl_free_lun: FETD %s port %d " 4734 "returned error %d for targ_disable on " 4735 "target %ju\n", port->port_name, 4736 port->targ_port, retval, 4737 (uintmax_t)lun->target.id); 4738 } else 4739 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4740 4741 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4742 continue; 4743 4744#if 0 4745 port->port_offline(port->onoff_arg); 4746 port->status &= ~CTL_PORT_STATUS_ONLINE; 4747#endif 4748 } 4749 } 4750#endif 4751 4752 /* 4753 * Tell the backend to free resources, if this LUN has a backend. 4754 */ 4755 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4756 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4757 4758 ctl_tpc_lun_shutdown(lun); 4759 mtx_destroy(&lun->lun_lock); 4760 free(lun->lun_devid, M_CTL); 4761 for (i = 0; i < CTL_MAX_PORTS; i++) 4762 free(lun->pending_ua[i], M_CTL); 4763 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4764 free(lun->pr_keys[i], M_CTL); 4765 free(lun->write_buffer, M_CTL); 4766 if (lun->flags & CTL_LUN_MALLOCED) 4767 free(lun, M_CTL); 4768 4769 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4770 mtx_lock(&nlun->lun_lock); 4771 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4772 mtx_unlock(&nlun->lun_lock); 4773 } 4774 4775 return (0); 4776} 4777 4778static void 4779ctl_create_lun(struct ctl_be_lun *be_lun) 4780{ 4781 struct ctl_softc *softc; 4782 4783 softc = control_softc; 4784 4785 /* 4786 * ctl_alloc_lun() should handle all potential failure cases. 4787 */ 4788 ctl_alloc_lun(softc, NULL, be_lun, softc->target); 4789} 4790 4791int 4792ctl_add_lun(struct ctl_be_lun *be_lun) 4793{ 4794 struct ctl_softc *softc = control_softc; 4795 4796 mtx_lock(&softc->ctl_lock); 4797 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4798 mtx_unlock(&softc->ctl_lock); 4799 wakeup(&softc->pending_lun_queue); 4800 4801 return (0); 4802} 4803 4804int 4805ctl_enable_lun(struct ctl_be_lun *be_lun) 4806{ 4807 struct ctl_softc *softc; 4808 struct ctl_port *port, *nport; 4809 struct ctl_lun *lun; 4810 int retval; 4811 4812 lun = (struct ctl_lun *)be_lun->ctl_lun; 4813 softc = lun->ctl_softc; 4814 4815 mtx_lock(&softc->ctl_lock); 4816 mtx_lock(&lun->lun_lock); 4817 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4818 /* 4819 * eh? Why did we get called if the LUN is already 4820 * enabled? 4821 */ 4822 mtx_unlock(&lun->lun_lock); 4823 mtx_unlock(&softc->ctl_lock); 4824 return (0); 4825 } 4826 lun->flags &= ~CTL_LUN_DISABLED; 4827 mtx_unlock(&lun->lun_lock); 4828 4829 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4830 nport = STAILQ_NEXT(port, links); 4831 4832 /* 4833 * Drop the lock while we call the FETD's enable routine. 4834 * This can lead to a callback into CTL (at least in the 4835 * case of the internal initiator frontend. 4836 */ 4837 mtx_unlock(&softc->ctl_lock); 4838 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4839 mtx_lock(&softc->ctl_lock); 4840 if (retval != 0) { 4841 printf("%s: FETD %s port %d returned error " 4842 "%d for lun_enable on target %ju lun %jd\n", 4843 __func__, port->port_name, port->targ_port, retval, 4844 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4845 } 4846#if 0 4847 else { 4848 /* NOTE: TODO: why does lun enable affect port status? */ 4849 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4850 } 4851#endif 4852 } 4853 4854 mtx_unlock(&softc->ctl_lock); 4855 4856 return (0); 4857} 4858 4859int 4860ctl_disable_lun(struct ctl_be_lun *be_lun) 4861{ 4862 struct ctl_softc *softc; 4863 struct ctl_port *port; 4864 struct ctl_lun *lun; 4865 int retval; 4866 4867 lun = (struct ctl_lun *)be_lun->ctl_lun; 4868 softc = lun->ctl_softc; 4869 4870 mtx_lock(&softc->ctl_lock); 4871 mtx_lock(&lun->lun_lock); 4872 if (lun->flags & CTL_LUN_DISABLED) { 4873 mtx_unlock(&lun->lun_lock); 4874 mtx_unlock(&softc->ctl_lock); 4875 return (0); 4876 } 4877 lun->flags |= CTL_LUN_DISABLED; 4878 mtx_unlock(&lun->lun_lock); 4879 4880 STAILQ_FOREACH(port, &softc->port_list, links) { 4881 mtx_unlock(&softc->ctl_lock); 4882 /* 4883 * Drop the lock before we call the frontend's disable 4884 * routine, to avoid lock order reversals. 4885 * 4886 * XXX KDM what happens if the frontend list changes while 4887 * we're traversing it? It's unlikely, but should be handled. 4888 */ 4889 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4890 lun->lun); 4891 mtx_lock(&softc->ctl_lock); 4892 if (retval != 0) { 4893 printf("ctl_alloc_lun: FETD %s port %d returned error " 4894 "%d for lun_disable on target %ju lun %jd\n", 4895 port->port_name, port->targ_port, retval, 4896 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4897 } 4898 } 4899 4900 mtx_unlock(&softc->ctl_lock); 4901 4902 return (0); 4903} 4904 4905int 4906ctl_start_lun(struct ctl_be_lun *be_lun) 4907{ 4908 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4909 4910 mtx_lock(&lun->lun_lock); 4911 lun->flags &= ~CTL_LUN_STOPPED; 4912 mtx_unlock(&lun->lun_lock); 4913 return (0); 4914} 4915 4916int 4917ctl_stop_lun(struct ctl_be_lun *be_lun) 4918{ 4919 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4920 4921 mtx_lock(&lun->lun_lock); 4922 lun->flags |= CTL_LUN_STOPPED; 4923 mtx_unlock(&lun->lun_lock); 4924 return (0); 4925} 4926 4927int 4928ctl_lun_offline(struct ctl_be_lun *be_lun) 4929{ 4930 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4931 4932 mtx_lock(&lun->lun_lock); 4933 lun->flags |= CTL_LUN_OFFLINE; 4934 mtx_unlock(&lun->lun_lock); 4935 return (0); 4936} 4937 4938int 4939ctl_lun_online(struct ctl_be_lun *be_lun) 4940{ 4941 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4942 4943 mtx_lock(&lun->lun_lock); 4944 lun->flags &= ~CTL_LUN_OFFLINE; 4945 mtx_unlock(&lun->lun_lock); 4946 return (0); 4947} 4948 4949int 4950ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4951{ 4952 struct ctl_softc *softc; 4953 struct ctl_lun *lun; 4954 4955 lun = (struct ctl_lun *)be_lun->ctl_lun; 4956 softc = lun->ctl_softc; 4957 4958 mtx_lock(&lun->lun_lock); 4959 4960 /* 4961 * The LUN needs to be disabled before it can be marked invalid. 4962 */ 4963 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4964 mtx_unlock(&lun->lun_lock); 4965 return (-1); 4966 } 4967 /* 4968 * Mark the LUN invalid. 4969 */ 4970 lun->flags |= CTL_LUN_INVALID; 4971 4972 /* 4973 * If there is nothing in the OOA queue, go ahead and free the LUN. 4974 * If we have something in the OOA queue, we'll free it when the 4975 * last I/O completes. 4976 */ 4977 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4978 mtx_unlock(&lun->lun_lock); 4979 mtx_lock(&softc->ctl_lock); 4980 ctl_free_lun(lun); 4981 mtx_unlock(&softc->ctl_lock); 4982 } else 4983 mtx_unlock(&lun->lun_lock); 4984 4985 return (0); 4986} 4987 4988int 4989ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4990{ 4991 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4992 4993 mtx_lock(&lun->lun_lock); 4994 lun->flags |= CTL_LUN_INOPERABLE; 4995 mtx_unlock(&lun->lun_lock); 4996 return (0); 4997} 4998 4999int 5000ctl_lun_operable(struct ctl_be_lun *be_lun) 5001{ 5002 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5003 5004 mtx_lock(&lun->lun_lock); 5005 lun->flags &= ~CTL_LUN_INOPERABLE; 5006 mtx_unlock(&lun->lun_lock); 5007 return (0); 5008} 5009 5010void 5011ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5012{ 5013 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5014 5015 mtx_lock(&lun->lun_lock); 5016 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5017 mtx_unlock(&lun->lun_lock); 5018} 5019 5020/* 5021 * Backend "memory move is complete" callback for requests that never 5022 * make it down to say RAIDCore's configuration code. 5023 */ 5024int 5025ctl_config_move_done(union ctl_io *io) 5026{ 5027 int retval; 5028 5029 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5030 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5031 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5032 5033 if ((io->io_hdr.port_status != 0) && 5034 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5035 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5036 /* 5037 * For hardware error sense keys, the sense key 5038 * specific value is defined to be a retry count, 5039 * but we use it to pass back an internal FETD 5040 * error code. XXX KDM Hopefully the FETD is only 5041 * using 16 bits for an error code, since that's 5042 * all the space we have in the sks field. 5043 */ 5044 ctl_set_internal_failure(&io->scsiio, 5045 /*sks_valid*/ 1, 5046 /*retry_count*/ 5047 io->io_hdr.port_status); 5048 } 5049 5050 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5051 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5052 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5053 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5054 /* 5055 * XXX KDM just assuming a single pointer here, and not a 5056 * S/G list. If we start using S/G lists for config data, 5057 * we'll need to know how to clean them up here as well. 5058 */ 5059 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5060 free(io->scsiio.kern_data_ptr, M_CTL); 5061 ctl_done(io); 5062 retval = CTL_RETVAL_COMPLETE; 5063 } else { 5064 /* 5065 * XXX KDM now we need to continue data movement. Some 5066 * options: 5067 * - call ctl_scsiio() again? We don't do this for data 5068 * writes, because for those at least we know ahead of 5069 * time where the write will go and how long it is. For 5070 * config writes, though, that information is largely 5071 * contained within the write itself, thus we need to 5072 * parse out the data again. 5073 * 5074 * - Call some other function once the data is in? 5075 */ 5076 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5077 ctl_data_print(io); 5078 5079 /* 5080 * XXX KDM call ctl_scsiio() again for now, and check flag 5081 * bits to see whether we're allocated or not. 5082 */ 5083 retval = ctl_scsiio(&io->scsiio); 5084 } 5085 return (retval); 5086} 5087 5088/* 5089 * This gets called by a backend driver when it is done with a 5090 * data_submit method. 5091 */ 5092void 5093ctl_data_submit_done(union ctl_io *io) 5094{ 5095 /* 5096 * If the IO_CONT flag is set, we need to call the supplied 5097 * function to continue processing the I/O, instead of completing 5098 * the I/O just yet. 5099 * 5100 * If there is an error, though, we don't want to keep processing. 5101 * Instead, just send status back to the initiator. 5102 */ 5103 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5104 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5105 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5106 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5107 io->scsiio.io_cont(io); 5108 return; 5109 } 5110 ctl_done(io); 5111} 5112 5113/* 5114 * This gets called by a backend driver when it is done with a 5115 * configuration write. 5116 */ 5117void 5118ctl_config_write_done(union ctl_io *io) 5119{ 5120 uint8_t *buf; 5121 5122 /* 5123 * If the IO_CONT flag is set, we need to call the supplied 5124 * function to continue processing the I/O, instead of completing 5125 * the I/O just yet. 5126 * 5127 * If there is an error, though, we don't want to keep processing. 5128 * Instead, just send status back to the initiator. 5129 */ 5130 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5131 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5132 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5133 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5134 io->scsiio.io_cont(io); 5135 return; 5136 } 5137 /* 5138 * Since a configuration write can be done for commands that actually 5139 * have data allocated, like write buffer, and commands that have 5140 * no data, like start/stop unit, we need to check here. 5141 */ 5142 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5143 buf = io->scsiio.kern_data_ptr; 5144 else 5145 buf = NULL; 5146 ctl_done(io); 5147 if (buf) 5148 free(buf, M_CTL); 5149} 5150 5151void 5152ctl_config_read_done(union ctl_io *io) 5153{ 5154 uint8_t *buf; 5155 5156 /* 5157 * If there is some error -- we are done, skip data transfer. 5158 */ 5159 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5160 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5161 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5162 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5163 buf = io->scsiio.kern_data_ptr; 5164 else 5165 buf = NULL; 5166 ctl_done(io); 5167 if (buf) 5168 free(buf, M_CTL); 5169 return; 5170 } 5171 5172 /* 5173 * If the IO_CONT flag is set, we need to call the supplied 5174 * function to continue processing the I/O, instead of completing 5175 * the I/O just yet. 5176 */ 5177 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5178 io->scsiio.io_cont(io); 5179 return; 5180 } 5181 5182 ctl_datamove(io); 5183} 5184 5185/* 5186 * SCSI release command. 5187 */ 5188int 5189ctl_scsi_release(struct ctl_scsiio *ctsio) 5190{ 5191 int length, longid, thirdparty_id, resv_id; 5192 struct ctl_lun *lun; 5193 uint32_t residx; 5194 5195 length = 0; 5196 resv_id = 0; 5197 5198 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5199 5200 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5201 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5202 5203 switch (ctsio->cdb[0]) { 5204 case RELEASE_10: { 5205 struct scsi_release_10 *cdb; 5206 5207 cdb = (struct scsi_release_10 *)ctsio->cdb; 5208 5209 if (cdb->byte2 & SR10_LONGID) 5210 longid = 1; 5211 else 5212 thirdparty_id = cdb->thirdparty_id; 5213 5214 resv_id = cdb->resv_id; 5215 length = scsi_2btoul(cdb->length); 5216 break; 5217 } 5218 } 5219 5220 5221 /* 5222 * XXX KDM right now, we only support LUN reservation. We don't 5223 * support 3rd party reservations, or extent reservations, which 5224 * might actually need the parameter list. If we've gotten this 5225 * far, we've got a LUN reservation. Anything else got kicked out 5226 * above. So, according to SPC, ignore the length. 5227 */ 5228 length = 0; 5229 5230 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5231 && (length > 0)) { 5232 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5233 ctsio->kern_data_len = length; 5234 ctsio->kern_total_len = length; 5235 ctsio->kern_data_resid = 0; 5236 ctsio->kern_rel_offset = 0; 5237 ctsio->kern_sg_entries = 0; 5238 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5239 ctsio->be_move_done = ctl_config_move_done; 5240 ctl_datamove((union ctl_io *)ctsio); 5241 5242 return (CTL_RETVAL_COMPLETE); 5243 } 5244 5245 if (length > 0) 5246 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5247 5248 mtx_lock(&lun->lun_lock); 5249 5250 /* 5251 * According to SPC, it is not an error for an intiator to attempt 5252 * to release a reservation on a LUN that isn't reserved, or that 5253 * is reserved by another initiator. The reservation can only be 5254 * released, though, by the initiator who made it or by one of 5255 * several reset type events. 5256 */ 5257 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5258 lun->flags &= ~CTL_LUN_RESERVED; 5259 5260 mtx_unlock(&lun->lun_lock); 5261 5262 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5263 free(ctsio->kern_data_ptr, M_CTL); 5264 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5265 } 5266 5267 ctl_set_success(ctsio); 5268 ctl_done((union ctl_io *)ctsio); 5269 return (CTL_RETVAL_COMPLETE); 5270} 5271 5272int 5273ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5274{ 5275 int extent, thirdparty, longid; 5276 int resv_id, length; 5277 uint64_t thirdparty_id; 5278 struct ctl_lun *lun; 5279 uint32_t residx; 5280 5281 extent = 0; 5282 thirdparty = 0; 5283 longid = 0; 5284 resv_id = 0; 5285 length = 0; 5286 thirdparty_id = 0; 5287 5288 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5289 5290 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5291 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5292 5293 switch (ctsio->cdb[0]) { 5294 case RESERVE_10: { 5295 struct scsi_reserve_10 *cdb; 5296 5297 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5298 5299 if (cdb->byte2 & SR10_LONGID) 5300 longid = 1; 5301 else 5302 thirdparty_id = cdb->thirdparty_id; 5303 5304 resv_id = cdb->resv_id; 5305 length = scsi_2btoul(cdb->length); 5306 break; 5307 } 5308 } 5309 5310 /* 5311 * XXX KDM right now, we only support LUN reservation. We don't 5312 * support 3rd party reservations, or extent reservations, which 5313 * might actually need the parameter list. If we've gotten this 5314 * far, we've got a LUN reservation. Anything else got kicked out 5315 * above. So, according to SPC, ignore the length. 5316 */ 5317 length = 0; 5318 5319 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5320 && (length > 0)) { 5321 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5322 ctsio->kern_data_len = length; 5323 ctsio->kern_total_len = length; 5324 ctsio->kern_data_resid = 0; 5325 ctsio->kern_rel_offset = 0; 5326 ctsio->kern_sg_entries = 0; 5327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5328 ctsio->be_move_done = ctl_config_move_done; 5329 ctl_datamove((union ctl_io *)ctsio); 5330 5331 return (CTL_RETVAL_COMPLETE); 5332 } 5333 5334 if (length > 0) 5335 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5336 5337 mtx_lock(&lun->lun_lock); 5338 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5339 ctl_set_reservation_conflict(ctsio); 5340 goto bailout; 5341 } 5342 5343 lun->flags |= CTL_LUN_RESERVED; 5344 lun->res_idx = residx; 5345 5346 ctl_set_success(ctsio); 5347 5348bailout: 5349 mtx_unlock(&lun->lun_lock); 5350 5351 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5352 free(ctsio->kern_data_ptr, M_CTL); 5353 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5354 } 5355 5356 ctl_done((union ctl_io *)ctsio); 5357 return (CTL_RETVAL_COMPLETE); 5358} 5359 5360int 5361ctl_start_stop(struct ctl_scsiio *ctsio) 5362{ 5363 struct scsi_start_stop_unit *cdb; 5364 struct ctl_lun *lun; 5365 int retval; 5366 5367 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5368 5369 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5370 retval = 0; 5371 5372 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5373 5374 /* 5375 * XXX KDM 5376 * We don't support the immediate bit on a stop unit. In order to 5377 * do that, we would need to code up a way to know that a stop is 5378 * pending, and hold off any new commands until it completes, one 5379 * way or another. Then we could accept or reject those commands 5380 * depending on its status. We would almost need to do the reverse 5381 * of what we do below for an immediate start -- return the copy of 5382 * the ctl_io to the FETD with status to send to the host (and to 5383 * free the copy!) and then free the original I/O once the stop 5384 * actually completes. That way, the OOA queue mechanism can work 5385 * to block commands that shouldn't proceed. Another alternative 5386 * would be to put the copy in the queue in place of the original, 5387 * and return the original back to the caller. That could be 5388 * slightly safer.. 5389 */ 5390 if ((cdb->byte2 & SSS_IMMED) 5391 && ((cdb->how & SSS_START) == 0)) { 5392 ctl_set_invalid_field(ctsio, 5393 /*sks_valid*/ 1, 5394 /*command*/ 1, 5395 /*field*/ 1, 5396 /*bit_valid*/ 1, 5397 /*bit*/ 0); 5398 ctl_done((union ctl_io *)ctsio); 5399 return (CTL_RETVAL_COMPLETE); 5400 } 5401 5402 if ((lun->flags & CTL_LUN_PR_RESERVED) 5403 && ((cdb->how & SSS_START)==0)) { 5404 uint32_t residx; 5405 5406 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5407 if (ctl_get_prkey(lun, residx) == 0 5408 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5409 5410 ctl_set_reservation_conflict(ctsio); 5411 ctl_done((union ctl_io *)ctsio); 5412 return (CTL_RETVAL_COMPLETE); 5413 } 5414 } 5415 5416 /* 5417 * If there is no backend on this device, we can't start or stop 5418 * it. In theory we shouldn't get any start/stop commands in the 5419 * first place at this level if the LUN doesn't have a backend. 5420 * That should get stopped by the command decode code. 5421 */ 5422 if (lun->backend == NULL) { 5423 ctl_set_invalid_opcode(ctsio); 5424 ctl_done((union ctl_io *)ctsio); 5425 return (CTL_RETVAL_COMPLETE); 5426 } 5427 5428 /* 5429 * XXX KDM Copan-specific offline behavior. 5430 * Figure out a reasonable way to port this? 5431 */ 5432#ifdef NEEDTOPORT 5433 mtx_lock(&lun->lun_lock); 5434 5435 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5436 && (lun->flags & CTL_LUN_OFFLINE)) { 5437 /* 5438 * If the LUN is offline, and the on/offline bit isn't set, 5439 * reject the start or stop. Otherwise, let it through. 5440 */ 5441 mtx_unlock(&lun->lun_lock); 5442 ctl_set_lun_not_ready(ctsio); 5443 ctl_done((union ctl_io *)ctsio); 5444 } else { 5445 mtx_unlock(&lun->lun_lock); 5446#endif /* NEEDTOPORT */ 5447 /* 5448 * This could be a start or a stop when we're online, 5449 * or a stop/offline or start/online. A start or stop when 5450 * we're offline is covered in the case above. 5451 */ 5452 /* 5453 * In the non-immediate case, we send the request to 5454 * the backend and return status to the user when 5455 * it is done. 5456 * 5457 * In the immediate case, we allocate a new ctl_io 5458 * to hold a copy of the request, and send that to 5459 * the backend. We then set good status on the 5460 * user's request and return it immediately. 5461 */ 5462 if (cdb->byte2 & SSS_IMMED) { 5463 union ctl_io *new_io; 5464 5465 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5466 ctl_copy_io((union ctl_io *)ctsio, new_io); 5467 retval = lun->backend->config_write(new_io); 5468 ctl_set_success(ctsio); 5469 ctl_done((union ctl_io *)ctsio); 5470 } else { 5471 retval = lun->backend->config_write( 5472 (union ctl_io *)ctsio); 5473 } 5474#ifdef NEEDTOPORT 5475 } 5476#endif 5477 return (retval); 5478} 5479 5480/* 5481 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5482 * we don't really do anything with the LBA and length fields if the user 5483 * passes them in. Instead we'll just flush out the cache for the entire 5484 * LUN. 5485 */ 5486int 5487ctl_sync_cache(struct ctl_scsiio *ctsio) 5488{ 5489 struct ctl_lun *lun; 5490 struct ctl_softc *softc; 5491 uint64_t starting_lba; 5492 uint32_t block_count; 5493 int retval; 5494 5495 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5496 5497 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5498 softc = lun->ctl_softc; 5499 retval = 0; 5500 5501 switch (ctsio->cdb[0]) { 5502 case SYNCHRONIZE_CACHE: { 5503 struct scsi_sync_cache *cdb; 5504 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5505 5506 starting_lba = scsi_4btoul(cdb->begin_lba); 5507 block_count = scsi_2btoul(cdb->lb_count); 5508 break; 5509 } 5510 case SYNCHRONIZE_CACHE_16: { 5511 struct scsi_sync_cache_16 *cdb; 5512 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5513 5514 starting_lba = scsi_8btou64(cdb->begin_lba); 5515 block_count = scsi_4btoul(cdb->lb_count); 5516 break; 5517 } 5518 default: 5519 ctl_set_invalid_opcode(ctsio); 5520 ctl_done((union ctl_io *)ctsio); 5521 goto bailout; 5522 break; /* NOTREACHED */ 5523 } 5524 5525 /* 5526 * We check the LBA and length, but don't do anything with them. 5527 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5528 * get flushed. This check will just help satisfy anyone who wants 5529 * to see an error for an out of range LBA. 5530 */ 5531 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5532 ctl_set_lba_out_of_range(ctsio); 5533 ctl_done((union ctl_io *)ctsio); 5534 goto bailout; 5535 } 5536 5537 /* 5538 * If this LUN has no backend, we can't flush the cache anyway. 5539 */ 5540 if (lun->backend == NULL) { 5541 ctl_set_invalid_opcode(ctsio); 5542 ctl_done((union ctl_io *)ctsio); 5543 goto bailout; 5544 } 5545 5546 /* 5547 * Check to see whether we're configured to send the SYNCHRONIZE 5548 * CACHE command directly to the back end. 5549 */ 5550 mtx_lock(&lun->lun_lock); 5551 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5552 && (++(lun->sync_count) >= lun->sync_interval)) { 5553 lun->sync_count = 0; 5554 mtx_unlock(&lun->lun_lock); 5555 retval = lun->backend->config_write((union ctl_io *)ctsio); 5556 } else { 5557 mtx_unlock(&lun->lun_lock); 5558 ctl_set_success(ctsio); 5559 ctl_done((union ctl_io *)ctsio); 5560 } 5561 5562bailout: 5563 5564 return (retval); 5565} 5566 5567int 5568ctl_format(struct ctl_scsiio *ctsio) 5569{ 5570 struct scsi_format *cdb; 5571 struct ctl_lun *lun; 5572 int length, defect_list_len; 5573 5574 CTL_DEBUG_PRINT(("ctl_format\n")); 5575 5576 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5577 5578 cdb = (struct scsi_format *)ctsio->cdb; 5579 5580 length = 0; 5581 if (cdb->byte2 & SF_FMTDATA) { 5582 if (cdb->byte2 & SF_LONGLIST) 5583 length = sizeof(struct scsi_format_header_long); 5584 else 5585 length = sizeof(struct scsi_format_header_short); 5586 } 5587 5588 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5589 && (length > 0)) { 5590 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5591 ctsio->kern_data_len = length; 5592 ctsio->kern_total_len = length; 5593 ctsio->kern_data_resid = 0; 5594 ctsio->kern_rel_offset = 0; 5595 ctsio->kern_sg_entries = 0; 5596 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5597 ctsio->be_move_done = ctl_config_move_done; 5598 ctl_datamove((union ctl_io *)ctsio); 5599 5600 return (CTL_RETVAL_COMPLETE); 5601 } 5602 5603 defect_list_len = 0; 5604 5605 if (cdb->byte2 & SF_FMTDATA) { 5606 if (cdb->byte2 & SF_LONGLIST) { 5607 struct scsi_format_header_long *header; 5608 5609 header = (struct scsi_format_header_long *) 5610 ctsio->kern_data_ptr; 5611 5612 defect_list_len = scsi_4btoul(header->defect_list_len); 5613 if (defect_list_len != 0) { 5614 ctl_set_invalid_field(ctsio, 5615 /*sks_valid*/ 1, 5616 /*command*/ 0, 5617 /*field*/ 2, 5618 /*bit_valid*/ 0, 5619 /*bit*/ 0); 5620 goto bailout; 5621 } 5622 } else { 5623 struct scsi_format_header_short *header; 5624 5625 header = (struct scsi_format_header_short *) 5626 ctsio->kern_data_ptr; 5627 5628 defect_list_len = scsi_2btoul(header->defect_list_len); 5629 if (defect_list_len != 0) { 5630 ctl_set_invalid_field(ctsio, 5631 /*sks_valid*/ 1, 5632 /*command*/ 0, 5633 /*field*/ 2, 5634 /*bit_valid*/ 0, 5635 /*bit*/ 0); 5636 goto bailout; 5637 } 5638 } 5639 } 5640 5641 /* 5642 * The format command will clear out the "Medium format corrupted" 5643 * status if set by the configuration code. That status is really 5644 * just a way to notify the host that we have lost the media, and 5645 * get them to issue a command that will basically make them think 5646 * they're blowing away the media. 5647 */ 5648 mtx_lock(&lun->lun_lock); 5649 lun->flags &= ~CTL_LUN_INOPERABLE; 5650 mtx_unlock(&lun->lun_lock); 5651 5652 ctl_set_success(ctsio); 5653bailout: 5654 5655 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5656 free(ctsio->kern_data_ptr, M_CTL); 5657 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5658 } 5659 5660 ctl_done((union ctl_io *)ctsio); 5661 return (CTL_RETVAL_COMPLETE); 5662} 5663 5664int 5665ctl_read_buffer(struct ctl_scsiio *ctsio) 5666{ 5667 struct scsi_read_buffer *cdb; 5668 struct ctl_lun *lun; 5669 int buffer_offset, len; 5670 static uint8_t descr[4]; 5671 static uint8_t echo_descr[4] = { 0 }; 5672 5673 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5674 5675 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5676 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5677 5678 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5679 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5680 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5681 ctl_set_invalid_field(ctsio, 5682 /*sks_valid*/ 1, 5683 /*command*/ 1, 5684 /*field*/ 1, 5685 /*bit_valid*/ 1, 5686 /*bit*/ 4); 5687 ctl_done((union ctl_io *)ctsio); 5688 return (CTL_RETVAL_COMPLETE); 5689 } 5690 5691 len = scsi_3btoul(cdb->length); 5692 buffer_offset = scsi_3btoul(cdb->offset); 5693 5694 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5695 ctl_set_invalid_field(ctsio, 5696 /*sks_valid*/ 1, 5697 /*command*/ 1, 5698 /*field*/ 6, 5699 /*bit_valid*/ 0, 5700 /*bit*/ 0); 5701 ctl_done((union ctl_io *)ctsio); 5702 return (CTL_RETVAL_COMPLETE); 5703 } 5704 5705 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5706 descr[0] = 0; 5707 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5708 ctsio->kern_data_ptr = descr; 5709 len = min(len, sizeof(descr)); 5710 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5711 ctsio->kern_data_ptr = echo_descr; 5712 len = min(len, sizeof(echo_descr)); 5713 } else { 5714 if (lun->write_buffer == NULL) { 5715 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5716 M_CTL, M_WAITOK); 5717 } 5718 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5719 } 5720 ctsio->kern_data_len = len; 5721 ctsio->kern_total_len = len; 5722 ctsio->kern_data_resid = 0; 5723 ctsio->kern_rel_offset = 0; 5724 ctsio->kern_sg_entries = 0; 5725 ctl_set_success(ctsio); 5726 ctsio->be_move_done = ctl_config_move_done; 5727 ctl_datamove((union ctl_io *)ctsio); 5728 return (CTL_RETVAL_COMPLETE); 5729} 5730 5731int 5732ctl_write_buffer(struct ctl_scsiio *ctsio) 5733{ 5734 struct scsi_write_buffer *cdb; 5735 struct ctl_lun *lun; 5736 int buffer_offset, len; 5737 5738 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5739 5740 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5741 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5742 5743 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5744 ctl_set_invalid_field(ctsio, 5745 /*sks_valid*/ 1, 5746 /*command*/ 1, 5747 /*field*/ 1, 5748 /*bit_valid*/ 1, 5749 /*bit*/ 4); 5750 ctl_done((union ctl_io *)ctsio); 5751 return (CTL_RETVAL_COMPLETE); 5752 } 5753 5754 len = scsi_3btoul(cdb->length); 5755 buffer_offset = scsi_3btoul(cdb->offset); 5756 5757 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5758 ctl_set_invalid_field(ctsio, 5759 /*sks_valid*/ 1, 5760 /*command*/ 1, 5761 /*field*/ 6, 5762 /*bit_valid*/ 0, 5763 /*bit*/ 0); 5764 ctl_done((union ctl_io *)ctsio); 5765 return (CTL_RETVAL_COMPLETE); 5766 } 5767 5768 /* 5769 * If we've got a kernel request that hasn't been malloced yet, 5770 * malloc it and tell the caller the data buffer is here. 5771 */ 5772 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5773 if (lun->write_buffer == NULL) { 5774 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5775 M_CTL, M_WAITOK); 5776 } 5777 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5778 ctsio->kern_data_len = len; 5779 ctsio->kern_total_len = len; 5780 ctsio->kern_data_resid = 0; 5781 ctsio->kern_rel_offset = 0; 5782 ctsio->kern_sg_entries = 0; 5783 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5784 ctsio->be_move_done = ctl_config_move_done; 5785 ctl_datamove((union ctl_io *)ctsio); 5786 5787 return (CTL_RETVAL_COMPLETE); 5788 } 5789 5790 ctl_set_success(ctsio); 5791 ctl_done((union ctl_io *)ctsio); 5792 return (CTL_RETVAL_COMPLETE); 5793} 5794 5795int 5796ctl_write_same(struct ctl_scsiio *ctsio) 5797{ 5798 struct ctl_lun *lun; 5799 struct ctl_lba_len_flags *lbalen; 5800 uint64_t lba; 5801 uint32_t num_blocks; 5802 int len, retval; 5803 uint8_t byte2; 5804 5805 retval = CTL_RETVAL_COMPLETE; 5806 5807 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5808 5809 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5810 5811 switch (ctsio->cdb[0]) { 5812 case WRITE_SAME_10: { 5813 struct scsi_write_same_10 *cdb; 5814 5815 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5816 5817 lba = scsi_4btoul(cdb->addr); 5818 num_blocks = scsi_2btoul(cdb->length); 5819 byte2 = cdb->byte2; 5820 break; 5821 } 5822 case WRITE_SAME_16: { 5823 struct scsi_write_same_16 *cdb; 5824 5825 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5826 5827 lba = scsi_8btou64(cdb->addr); 5828 num_blocks = scsi_4btoul(cdb->length); 5829 byte2 = cdb->byte2; 5830 break; 5831 } 5832 default: 5833 /* 5834 * We got a command we don't support. This shouldn't 5835 * happen, commands should be filtered out above us. 5836 */ 5837 ctl_set_invalid_opcode(ctsio); 5838 ctl_done((union ctl_io *)ctsio); 5839 5840 return (CTL_RETVAL_COMPLETE); 5841 break; /* NOTREACHED */ 5842 } 5843 5844 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5845 if ((byte2 & SWS_UNMAP) == 0 && 5846 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5847 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5848 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5849 ctl_done((union ctl_io *)ctsio); 5850 return (CTL_RETVAL_COMPLETE); 5851 } 5852 5853 /* 5854 * The first check is to make sure we're in bounds, the second 5855 * check is to catch wrap-around problems. If the lba + num blocks 5856 * is less than the lba, then we've wrapped around and the block 5857 * range is invalid anyway. 5858 */ 5859 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5860 || ((lba + num_blocks) < lba)) { 5861 ctl_set_lba_out_of_range(ctsio); 5862 ctl_done((union ctl_io *)ctsio); 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 /* Zero number of blocks means "to the last logical block" */ 5867 if (num_blocks == 0) { 5868 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5869 ctl_set_invalid_field(ctsio, 5870 /*sks_valid*/ 0, 5871 /*command*/ 1, 5872 /*field*/ 0, 5873 /*bit_valid*/ 0, 5874 /*bit*/ 0); 5875 ctl_done((union ctl_io *)ctsio); 5876 return (CTL_RETVAL_COMPLETE); 5877 } 5878 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5879 } 5880 5881 len = lun->be_lun->blocksize; 5882 5883 /* 5884 * If we've got a kernel request that hasn't been malloced yet, 5885 * malloc it and tell the caller the data buffer is here. 5886 */ 5887 if ((byte2 & SWS_NDOB) == 0 && 5888 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5889 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5890 ctsio->kern_data_len = len; 5891 ctsio->kern_total_len = len; 5892 ctsio->kern_data_resid = 0; 5893 ctsio->kern_rel_offset = 0; 5894 ctsio->kern_sg_entries = 0; 5895 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5896 ctsio->be_move_done = ctl_config_move_done; 5897 ctl_datamove((union ctl_io *)ctsio); 5898 5899 return (CTL_RETVAL_COMPLETE); 5900 } 5901 5902 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5903 lbalen->lba = lba; 5904 lbalen->len = num_blocks; 5905 lbalen->flags = byte2; 5906 retval = lun->backend->config_write((union ctl_io *)ctsio); 5907 5908 return (retval); 5909} 5910 5911int 5912ctl_unmap(struct ctl_scsiio *ctsio) 5913{ 5914 struct ctl_lun *lun; 5915 struct scsi_unmap *cdb; 5916 struct ctl_ptr_len_flags *ptrlen; 5917 struct scsi_unmap_header *hdr; 5918 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5919 uint64_t lba; 5920 uint32_t num_blocks; 5921 int len, retval; 5922 uint8_t byte2; 5923 5924 retval = CTL_RETVAL_COMPLETE; 5925 5926 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5927 5928 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5929 cdb = (struct scsi_unmap *)ctsio->cdb; 5930 5931 len = scsi_2btoul(cdb->length); 5932 byte2 = cdb->byte2; 5933 5934 /* 5935 * If we've got a kernel request that hasn't been malloced yet, 5936 * malloc it and tell the caller the data buffer is here. 5937 */ 5938 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5939 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5940 ctsio->kern_data_len = len; 5941 ctsio->kern_total_len = len; 5942 ctsio->kern_data_resid = 0; 5943 ctsio->kern_rel_offset = 0; 5944 ctsio->kern_sg_entries = 0; 5945 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5946 ctsio->be_move_done = ctl_config_move_done; 5947 ctl_datamove((union ctl_io *)ctsio); 5948 5949 return (CTL_RETVAL_COMPLETE); 5950 } 5951 5952 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5953 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5954 if (len < sizeof (*hdr) || 5955 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5956 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5957 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5958 ctl_set_invalid_field(ctsio, 5959 /*sks_valid*/ 0, 5960 /*command*/ 0, 5961 /*field*/ 0, 5962 /*bit_valid*/ 0, 5963 /*bit*/ 0); 5964 goto done; 5965 } 5966 len = scsi_2btoul(hdr->desc_length); 5967 buf = (struct scsi_unmap_desc *)(hdr + 1); 5968 end = buf + len / sizeof(*buf); 5969 5970 endnz = buf; 5971 for (range = buf; range < end; range++) { 5972 lba = scsi_8btou64(range->lba); 5973 num_blocks = scsi_4btoul(range->length); 5974 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5975 || ((lba + num_blocks) < lba)) { 5976 ctl_set_lba_out_of_range(ctsio); 5977 ctl_done((union ctl_io *)ctsio); 5978 return (CTL_RETVAL_COMPLETE); 5979 } 5980 if (num_blocks != 0) 5981 endnz = range + 1; 5982 } 5983 5984 /* 5985 * Block backend can not handle zero last range. 5986 * Filter it out and return if there is nothing left. 5987 */ 5988 len = (uint8_t *)endnz - (uint8_t *)buf; 5989 if (len == 0) { 5990 ctl_set_success(ctsio); 5991 goto done; 5992 } 5993 5994 mtx_lock(&lun->lun_lock); 5995 ptrlen = (struct ctl_ptr_len_flags *) 5996 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5997 ptrlen->ptr = (void *)buf; 5998 ptrlen->len = len; 5999 ptrlen->flags = byte2; 6000 ctl_check_blocked(lun); 6001 mtx_unlock(&lun->lun_lock); 6002 6003 retval = lun->backend->config_write((union ctl_io *)ctsio); 6004 return (retval); 6005 6006done: 6007 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6008 free(ctsio->kern_data_ptr, M_CTL); 6009 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6010 } 6011 ctl_done((union ctl_io *)ctsio); 6012 return (CTL_RETVAL_COMPLETE); 6013} 6014 6015/* 6016 * Note that this function currently doesn't actually do anything inside 6017 * CTL to enforce things if the DQue bit is turned on. 6018 * 6019 * Also note that this function can't be used in the default case, because 6020 * the DQue bit isn't set in the changeable mask for the control mode page 6021 * anyway. This is just here as an example for how to implement a page 6022 * handler, and a placeholder in case we want to allow the user to turn 6023 * tagged queueing on and off. 6024 * 6025 * The D_SENSE bit handling is functional, however, and will turn 6026 * descriptor sense on and off for a given LUN. 6027 */ 6028int 6029ctl_control_page_handler(struct ctl_scsiio *ctsio, 6030 struct ctl_page_index *page_index, uint8_t *page_ptr) 6031{ 6032 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6033 struct ctl_lun *lun; 6034 int set_ua; 6035 uint32_t initidx; 6036 6037 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6038 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6039 set_ua = 0; 6040 6041 user_cp = (struct scsi_control_page *)page_ptr; 6042 current_cp = (struct scsi_control_page *) 6043 (page_index->page_data + (page_index->page_len * 6044 CTL_PAGE_CURRENT)); 6045 saved_cp = (struct scsi_control_page *) 6046 (page_index->page_data + (page_index->page_len * 6047 CTL_PAGE_SAVED)); 6048 6049 mtx_lock(&lun->lun_lock); 6050 if (((current_cp->rlec & SCP_DSENSE) == 0) 6051 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6052 /* 6053 * Descriptor sense is currently turned off and the user 6054 * wants to turn it on. 6055 */ 6056 current_cp->rlec |= SCP_DSENSE; 6057 saved_cp->rlec |= SCP_DSENSE; 6058 lun->flags |= CTL_LUN_SENSE_DESC; 6059 set_ua = 1; 6060 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6061 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6062 /* 6063 * Descriptor sense is currently turned on, and the user 6064 * wants to turn it off. 6065 */ 6066 current_cp->rlec &= ~SCP_DSENSE; 6067 saved_cp->rlec &= ~SCP_DSENSE; 6068 lun->flags &= ~CTL_LUN_SENSE_DESC; 6069 set_ua = 1; 6070 } 6071 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6072 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6073 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6074 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6075 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6076 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6077 set_ua = 1; 6078 } 6079 if ((current_cp->eca_and_aen & SCP_SWP) != 6080 (user_cp->eca_and_aen & SCP_SWP)) { 6081 current_cp->eca_and_aen &= ~SCP_SWP; 6082 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6083 saved_cp->eca_and_aen &= ~SCP_SWP; 6084 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6085 set_ua = 1; 6086 } 6087 if (set_ua != 0) 6088 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6089 mtx_unlock(&lun->lun_lock); 6090 6091 return (0); 6092} 6093 6094int 6095ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6096 struct ctl_page_index *page_index, uint8_t *page_ptr) 6097{ 6098 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6099 struct ctl_lun *lun; 6100 int set_ua; 6101 uint32_t initidx; 6102 6103 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6104 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6105 set_ua = 0; 6106 6107 user_cp = (struct scsi_caching_page *)page_ptr; 6108 current_cp = (struct scsi_caching_page *) 6109 (page_index->page_data + (page_index->page_len * 6110 CTL_PAGE_CURRENT)); 6111 saved_cp = (struct scsi_caching_page *) 6112 (page_index->page_data + (page_index->page_len * 6113 CTL_PAGE_SAVED)); 6114 6115 mtx_lock(&lun->lun_lock); 6116 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6117 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6118 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6119 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6120 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6121 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6122 set_ua = 1; 6123 } 6124 if (set_ua != 0) 6125 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6126 mtx_unlock(&lun->lun_lock); 6127 6128 return (0); 6129} 6130 6131int 6132ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6133 struct ctl_page_index *page_index, 6134 uint8_t *page_ptr) 6135{ 6136 uint8_t *c; 6137 int i; 6138 6139 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6140 ctl_time_io_secs = 6141 (c[0] << 8) | 6142 (c[1] << 0) | 6143 0; 6144 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6145 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6146 printf("page data:"); 6147 for (i=0; i<8; i++) 6148 printf(" %.2x",page_ptr[i]); 6149 printf("\n"); 6150 return (0); 6151} 6152 6153int 6154ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6155 struct ctl_page_index *page_index, 6156 int pc) 6157{ 6158 struct copan_debugconf_subpage *page; 6159 6160 page = (struct copan_debugconf_subpage *)page_index->page_data + 6161 (page_index->page_len * pc); 6162 6163 switch (pc) { 6164 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6165 case SMS_PAGE_CTRL_DEFAULT >> 6: 6166 case SMS_PAGE_CTRL_SAVED >> 6: 6167 /* 6168 * We don't update the changable or default bits for this page. 6169 */ 6170 break; 6171 case SMS_PAGE_CTRL_CURRENT >> 6: 6172 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6173 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6174 break; 6175 default: 6176#ifdef NEEDTOPORT 6177 EPRINT(0, "Invalid PC %d!!", pc); 6178#endif /* NEEDTOPORT */ 6179 break; 6180 } 6181 return (0); 6182} 6183 6184 6185static int 6186ctl_do_mode_select(union ctl_io *io) 6187{ 6188 struct scsi_mode_page_header *page_header; 6189 struct ctl_page_index *page_index; 6190 struct ctl_scsiio *ctsio; 6191 int control_dev, page_len; 6192 int page_len_offset, page_len_size; 6193 union ctl_modepage_info *modepage_info; 6194 struct ctl_lun *lun; 6195 int *len_left, *len_used; 6196 int retval, i; 6197 6198 ctsio = &io->scsiio; 6199 page_index = NULL; 6200 page_len = 0; 6201 retval = CTL_RETVAL_COMPLETE; 6202 6203 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6204 6205 if (lun->be_lun->lun_type != T_DIRECT) 6206 control_dev = 1; 6207 else 6208 control_dev = 0; 6209 6210 modepage_info = (union ctl_modepage_info *) 6211 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6212 len_left = &modepage_info->header.len_left; 6213 len_used = &modepage_info->header.len_used; 6214 6215do_next_page: 6216 6217 page_header = (struct scsi_mode_page_header *) 6218 (ctsio->kern_data_ptr + *len_used); 6219 6220 if (*len_left == 0) { 6221 free(ctsio->kern_data_ptr, M_CTL); 6222 ctl_set_success(ctsio); 6223 ctl_done((union ctl_io *)ctsio); 6224 return (CTL_RETVAL_COMPLETE); 6225 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6226 6227 free(ctsio->kern_data_ptr, M_CTL); 6228 ctl_set_param_len_error(ctsio); 6229 ctl_done((union ctl_io *)ctsio); 6230 return (CTL_RETVAL_COMPLETE); 6231 6232 } else if ((page_header->page_code & SMPH_SPF) 6233 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6234 6235 free(ctsio->kern_data_ptr, M_CTL); 6236 ctl_set_param_len_error(ctsio); 6237 ctl_done((union ctl_io *)ctsio); 6238 return (CTL_RETVAL_COMPLETE); 6239 } 6240 6241 6242 /* 6243 * XXX KDM should we do something with the block descriptor? 6244 */ 6245 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6246 6247 if ((control_dev != 0) 6248 && (lun->mode_pages.index[i].page_flags & 6249 CTL_PAGE_FLAG_DISK_ONLY)) 6250 continue; 6251 6252 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6253 (page_header->page_code & SMPH_PC_MASK)) 6254 continue; 6255 6256 /* 6257 * If neither page has a subpage code, then we've got a 6258 * match. 6259 */ 6260 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6261 && ((page_header->page_code & SMPH_SPF) == 0)) { 6262 page_index = &lun->mode_pages.index[i]; 6263 page_len = page_header->page_length; 6264 break; 6265 } 6266 6267 /* 6268 * If both pages have subpages, then the subpage numbers 6269 * have to match. 6270 */ 6271 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6272 && (page_header->page_code & SMPH_SPF)) { 6273 struct scsi_mode_page_header_sp *sph; 6274 6275 sph = (struct scsi_mode_page_header_sp *)page_header; 6276 6277 if (lun->mode_pages.index[i].subpage == 6278 sph->subpage) { 6279 page_index = &lun->mode_pages.index[i]; 6280 page_len = scsi_2btoul(sph->page_length); 6281 break; 6282 } 6283 } 6284 } 6285 6286 /* 6287 * If we couldn't find the page, or if we don't have a mode select 6288 * handler for it, send back an error to the user. 6289 */ 6290 if ((page_index == NULL) 6291 || (page_index->select_handler == NULL)) { 6292 ctl_set_invalid_field(ctsio, 6293 /*sks_valid*/ 1, 6294 /*command*/ 0, 6295 /*field*/ *len_used, 6296 /*bit_valid*/ 0, 6297 /*bit*/ 0); 6298 free(ctsio->kern_data_ptr, M_CTL); 6299 ctl_done((union ctl_io *)ctsio); 6300 return (CTL_RETVAL_COMPLETE); 6301 } 6302 6303 if (page_index->page_code & SMPH_SPF) { 6304 page_len_offset = 2; 6305 page_len_size = 2; 6306 } else { 6307 page_len_size = 1; 6308 page_len_offset = 1; 6309 } 6310 6311 /* 6312 * If the length the initiator gives us isn't the one we specify in 6313 * the mode page header, or if they didn't specify enough data in 6314 * the CDB to avoid truncating this page, kick out the request. 6315 */ 6316 if ((page_len != (page_index->page_len - page_len_offset - 6317 page_len_size)) 6318 || (*len_left < page_index->page_len)) { 6319 6320 6321 ctl_set_invalid_field(ctsio, 6322 /*sks_valid*/ 1, 6323 /*command*/ 0, 6324 /*field*/ *len_used + page_len_offset, 6325 /*bit_valid*/ 0, 6326 /*bit*/ 0); 6327 free(ctsio->kern_data_ptr, M_CTL); 6328 ctl_done((union ctl_io *)ctsio); 6329 return (CTL_RETVAL_COMPLETE); 6330 } 6331 6332 /* 6333 * Run through the mode page, checking to make sure that the bits 6334 * the user changed are actually legal for him to change. 6335 */ 6336 for (i = 0; i < page_index->page_len; i++) { 6337 uint8_t *user_byte, *change_mask, *current_byte; 6338 int bad_bit; 6339 int j; 6340 6341 user_byte = (uint8_t *)page_header + i; 6342 change_mask = page_index->page_data + 6343 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6344 current_byte = page_index->page_data + 6345 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6346 6347 /* 6348 * Check to see whether the user set any bits in this byte 6349 * that he is not allowed to set. 6350 */ 6351 if ((*user_byte & ~(*change_mask)) == 6352 (*current_byte & ~(*change_mask))) 6353 continue; 6354 6355 /* 6356 * Go through bit by bit to determine which one is illegal. 6357 */ 6358 bad_bit = 0; 6359 for (j = 7; j >= 0; j--) { 6360 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6361 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6362 bad_bit = i; 6363 break; 6364 } 6365 } 6366 ctl_set_invalid_field(ctsio, 6367 /*sks_valid*/ 1, 6368 /*command*/ 0, 6369 /*field*/ *len_used + i, 6370 /*bit_valid*/ 1, 6371 /*bit*/ bad_bit); 6372 free(ctsio->kern_data_ptr, M_CTL); 6373 ctl_done((union ctl_io *)ctsio); 6374 return (CTL_RETVAL_COMPLETE); 6375 } 6376 6377 /* 6378 * Decrement these before we call the page handler, since we may 6379 * end up getting called back one way or another before the handler 6380 * returns to this context. 6381 */ 6382 *len_left -= page_index->page_len; 6383 *len_used += page_index->page_len; 6384 6385 retval = page_index->select_handler(ctsio, page_index, 6386 (uint8_t *)page_header); 6387 6388 /* 6389 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6390 * wait until this queued command completes to finish processing 6391 * the mode page. If it returns anything other than 6392 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6393 * already set the sense information, freed the data pointer, and 6394 * completed the io for us. 6395 */ 6396 if (retval != CTL_RETVAL_COMPLETE) 6397 goto bailout_no_done; 6398 6399 /* 6400 * If the initiator sent us more than one page, parse the next one. 6401 */ 6402 if (*len_left > 0) 6403 goto do_next_page; 6404 6405 ctl_set_success(ctsio); 6406 free(ctsio->kern_data_ptr, M_CTL); 6407 ctl_done((union ctl_io *)ctsio); 6408 6409bailout_no_done: 6410 6411 return (CTL_RETVAL_COMPLETE); 6412 6413} 6414 6415int 6416ctl_mode_select(struct ctl_scsiio *ctsio) 6417{ 6418 int param_len, pf, sp; 6419 int header_size, bd_len; 6420 int len_left, len_used; 6421 struct ctl_page_index *page_index; 6422 struct ctl_lun *lun; 6423 int control_dev, page_len; 6424 union ctl_modepage_info *modepage_info; 6425 int retval; 6426 6427 pf = 0; 6428 sp = 0; 6429 page_len = 0; 6430 len_used = 0; 6431 len_left = 0; 6432 retval = 0; 6433 bd_len = 0; 6434 page_index = NULL; 6435 6436 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6437 6438 if (lun->be_lun->lun_type != T_DIRECT) 6439 control_dev = 1; 6440 else 6441 control_dev = 0; 6442 6443 switch (ctsio->cdb[0]) { 6444 case MODE_SELECT_6: { 6445 struct scsi_mode_select_6 *cdb; 6446 6447 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6448 6449 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6450 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6451 6452 param_len = cdb->length; 6453 header_size = sizeof(struct scsi_mode_header_6); 6454 break; 6455 } 6456 case MODE_SELECT_10: { 6457 struct scsi_mode_select_10 *cdb; 6458 6459 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6460 6461 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6462 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6463 6464 param_len = scsi_2btoul(cdb->length); 6465 header_size = sizeof(struct scsi_mode_header_10); 6466 break; 6467 } 6468 default: 6469 ctl_set_invalid_opcode(ctsio); 6470 ctl_done((union ctl_io *)ctsio); 6471 return (CTL_RETVAL_COMPLETE); 6472 break; /* NOTREACHED */ 6473 } 6474 6475 /* 6476 * From SPC-3: 6477 * "A parameter list length of zero indicates that the Data-Out Buffer 6478 * shall be empty. This condition shall not be considered as an error." 6479 */ 6480 if (param_len == 0) { 6481 ctl_set_success(ctsio); 6482 ctl_done((union ctl_io *)ctsio); 6483 return (CTL_RETVAL_COMPLETE); 6484 } 6485 6486 /* 6487 * Since we'll hit this the first time through, prior to 6488 * allocation, we don't need to free a data buffer here. 6489 */ 6490 if (param_len < header_size) { 6491 ctl_set_param_len_error(ctsio); 6492 ctl_done((union ctl_io *)ctsio); 6493 return (CTL_RETVAL_COMPLETE); 6494 } 6495 6496 /* 6497 * Allocate the data buffer and grab the user's data. In theory, 6498 * we shouldn't have to sanity check the parameter list length here 6499 * because the maximum size is 64K. We should be able to malloc 6500 * that much without too many problems. 6501 */ 6502 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6503 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6504 ctsio->kern_data_len = param_len; 6505 ctsio->kern_total_len = param_len; 6506 ctsio->kern_data_resid = 0; 6507 ctsio->kern_rel_offset = 0; 6508 ctsio->kern_sg_entries = 0; 6509 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6510 ctsio->be_move_done = ctl_config_move_done; 6511 ctl_datamove((union ctl_io *)ctsio); 6512 6513 return (CTL_RETVAL_COMPLETE); 6514 } 6515 6516 switch (ctsio->cdb[0]) { 6517 case MODE_SELECT_6: { 6518 struct scsi_mode_header_6 *mh6; 6519 6520 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6521 bd_len = mh6->blk_desc_len; 6522 break; 6523 } 6524 case MODE_SELECT_10: { 6525 struct scsi_mode_header_10 *mh10; 6526 6527 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6528 bd_len = scsi_2btoul(mh10->blk_desc_len); 6529 break; 6530 } 6531 default: 6532 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6533 break; 6534 } 6535 6536 if (param_len < (header_size + bd_len)) { 6537 free(ctsio->kern_data_ptr, M_CTL); 6538 ctl_set_param_len_error(ctsio); 6539 ctl_done((union ctl_io *)ctsio); 6540 return (CTL_RETVAL_COMPLETE); 6541 } 6542 6543 /* 6544 * Set the IO_CONT flag, so that if this I/O gets passed to 6545 * ctl_config_write_done(), it'll get passed back to 6546 * ctl_do_mode_select() for further processing, or completion if 6547 * we're all done. 6548 */ 6549 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6550 ctsio->io_cont = ctl_do_mode_select; 6551 6552 modepage_info = (union ctl_modepage_info *) 6553 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6554 6555 memset(modepage_info, 0, sizeof(*modepage_info)); 6556 6557 len_left = param_len - header_size - bd_len; 6558 len_used = header_size + bd_len; 6559 6560 modepage_info->header.len_left = len_left; 6561 modepage_info->header.len_used = len_used; 6562 6563 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6564} 6565 6566int 6567ctl_mode_sense(struct ctl_scsiio *ctsio) 6568{ 6569 struct ctl_lun *lun; 6570 int pc, page_code, dbd, llba, subpage; 6571 int alloc_len, page_len, header_len, total_len; 6572 struct scsi_mode_block_descr *block_desc; 6573 struct ctl_page_index *page_index; 6574 int control_dev; 6575 6576 dbd = 0; 6577 llba = 0; 6578 block_desc = NULL; 6579 page_index = NULL; 6580 6581 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6582 6583 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6584 6585 if (lun->be_lun->lun_type != T_DIRECT) 6586 control_dev = 1; 6587 else 6588 control_dev = 0; 6589 6590 switch (ctsio->cdb[0]) { 6591 case MODE_SENSE_6: { 6592 struct scsi_mode_sense_6 *cdb; 6593 6594 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6595 6596 header_len = sizeof(struct scsi_mode_hdr_6); 6597 if (cdb->byte2 & SMS_DBD) 6598 dbd = 1; 6599 else 6600 header_len += sizeof(struct scsi_mode_block_descr); 6601 6602 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6603 page_code = cdb->page & SMS_PAGE_CODE; 6604 subpage = cdb->subpage; 6605 alloc_len = cdb->length; 6606 break; 6607 } 6608 case MODE_SENSE_10: { 6609 struct scsi_mode_sense_10 *cdb; 6610 6611 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6612 6613 header_len = sizeof(struct scsi_mode_hdr_10); 6614 6615 if (cdb->byte2 & SMS_DBD) 6616 dbd = 1; 6617 else 6618 header_len += sizeof(struct scsi_mode_block_descr); 6619 if (cdb->byte2 & SMS10_LLBAA) 6620 llba = 1; 6621 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6622 page_code = cdb->page & SMS_PAGE_CODE; 6623 subpage = cdb->subpage; 6624 alloc_len = scsi_2btoul(cdb->length); 6625 break; 6626 } 6627 default: 6628 ctl_set_invalid_opcode(ctsio); 6629 ctl_done((union ctl_io *)ctsio); 6630 return (CTL_RETVAL_COMPLETE); 6631 break; /* NOTREACHED */ 6632 } 6633 6634 /* 6635 * We have to make a first pass through to calculate the size of 6636 * the pages that match the user's query. Then we allocate enough 6637 * memory to hold it, and actually copy the data into the buffer. 6638 */ 6639 switch (page_code) { 6640 case SMS_ALL_PAGES_PAGE: { 6641 int i; 6642 6643 page_len = 0; 6644 6645 /* 6646 * At the moment, values other than 0 and 0xff here are 6647 * reserved according to SPC-3. 6648 */ 6649 if ((subpage != SMS_SUBPAGE_PAGE_0) 6650 && (subpage != SMS_SUBPAGE_ALL)) { 6651 ctl_set_invalid_field(ctsio, 6652 /*sks_valid*/ 1, 6653 /*command*/ 1, 6654 /*field*/ 3, 6655 /*bit_valid*/ 0, 6656 /*bit*/ 0); 6657 ctl_done((union ctl_io *)ctsio); 6658 return (CTL_RETVAL_COMPLETE); 6659 } 6660 6661 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6662 if ((control_dev != 0) 6663 && (lun->mode_pages.index[i].page_flags & 6664 CTL_PAGE_FLAG_DISK_ONLY)) 6665 continue; 6666 6667 /* 6668 * We don't use this subpage if the user didn't 6669 * request all subpages. 6670 */ 6671 if ((lun->mode_pages.index[i].subpage != 0) 6672 && (subpage == SMS_SUBPAGE_PAGE_0)) 6673 continue; 6674 6675#if 0 6676 printf("found page %#x len %d\n", 6677 lun->mode_pages.index[i].page_code & 6678 SMPH_PC_MASK, 6679 lun->mode_pages.index[i].page_len); 6680#endif 6681 page_len += lun->mode_pages.index[i].page_len; 6682 } 6683 break; 6684 } 6685 default: { 6686 int i; 6687 6688 page_len = 0; 6689 6690 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6691 /* Look for the right page code */ 6692 if ((lun->mode_pages.index[i].page_code & 6693 SMPH_PC_MASK) != page_code) 6694 continue; 6695 6696 /* Look for the right subpage or the subpage wildcard*/ 6697 if ((lun->mode_pages.index[i].subpage != subpage) 6698 && (subpage != SMS_SUBPAGE_ALL)) 6699 continue; 6700 6701 /* Make sure the page is supported for this dev type */ 6702 if ((control_dev != 0) 6703 && (lun->mode_pages.index[i].page_flags & 6704 CTL_PAGE_FLAG_DISK_ONLY)) 6705 continue; 6706 6707#if 0 6708 printf("found page %#x len %d\n", 6709 lun->mode_pages.index[i].page_code & 6710 SMPH_PC_MASK, 6711 lun->mode_pages.index[i].page_len); 6712#endif 6713 6714 page_len += lun->mode_pages.index[i].page_len; 6715 } 6716 6717 if (page_len == 0) { 6718 ctl_set_invalid_field(ctsio, 6719 /*sks_valid*/ 1, 6720 /*command*/ 1, 6721 /*field*/ 2, 6722 /*bit_valid*/ 1, 6723 /*bit*/ 5); 6724 ctl_done((union ctl_io *)ctsio); 6725 return (CTL_RETVAL_COMPLETE); 6726 } 6727 break; 6728 } 6729 } 6730 6731 total_len = header_len + page_len; 6732#if 0 6733 printf("header_len = %d, page_len = %d, total_len = %d\n", 6734 header_len, page_len, total_len); 6735#endif 6736 6737 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6738 ctsio->kern_sg_entries = 0; 6739 ctsio->kern_data_resid = 0; 6740 ctsio->kern_rel_offset = 0; 6741 if (total_len < alloc_len) { 6742 ctsio->residual = alloc_len - total_len; 6743 ctsio->kern_data_len = total_len; 6744 ctsio->kern_total_len = total_len; 6745 } else { 6746 ctsio->residual = 0; 6747 ctsio->kern_data_len = alloc_len; 6748 ctsio->kern_total_len = alloc_len; 6749 } 6750 6751 switch (ctsio->cdb[0]) { 6752 case MODE_SENSE_6: { 6753 struct scsi_mode_hdr_6 *header; 6754 6755 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6756 6757 header->datalen = MIN(total_len - 1, 254); 6758 if (control_dev == 0) { 6759 header->dev_specific = 0x10; /* DPOFUA */ 6760 if ((lun->flags & CTL_LUN_READONLY) || 6761 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6762 .eca_and_aen & SCP_SWP) != 0) 6763 header->dev_specific |= 0x80; /* WP */ 6764 } 6765 if (dbd) 6766 header->block_descr_len = 0; 6767 else 6768 header->block_descr_len = 6769 sizeof(struct scsi_mode_block_descr); 6770 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6771 break; 6772 } 6773 case MODE_SENSE_10: { 6774 struct scsi_mode_hdr_10 *header; 6775 int datalen; 6776 6777 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6778 6779 datalen = MIN(total_len - 2, 65533); 6780 scsi_ulto2b(datalen, header->datalen); 6781 if (control_dev == 0) { 6782 header->dev_specific = 0x10; /* DPOFUA */ 6783 if ((lun->flags & CTL_LUN_READONLY) || 6784 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6785 .eca_and_aen & SCP_SWP) != 0) 6786 header->dev_specific |= 0x80; /* WP */ 6787 } 6788 if (dbd) 6789 scsi_ulto2b(0, header->block_descr_len); 6790 else 6791 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6792 header->block_descr_len); 6793 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6794 break; 6795 } 6796 default: 6797 panic("invalid CDB type %#x", ctsio->cdb[0]); 6798 break; /* NOTREACHED */ 6799 } 6800 6801 /* 6802 * If we've got a disk, use its blocksize in the block 6803 * descriptor. Otherwise, just set it to 0. 6804 */ 6805 if (dbd == 0) { 6806 if (control_dev == 0) 6807 scsi_ulto3b(lun->be_lun->blocksize, 6808 block_desc->block_len); 6809 else 6810 scsi_ulto3b(0, block_desc->block_len); 6811 } 6812 6813 switch (page_code) { 6814 case SMS_ALL_PAGES_PAGE: { 6815 int i, data_used; 6816 6817 data_used = header_len; 6818 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6819 struct ctl_page_index *page_index; 6820 6821 page_index = &lun->mode_pages.index[i]; 6822 6823 if ((control_dev != 0) 6824 && (page_index->page_flags & 6825 CTL_PAGE_FLAG_DISK_ONLY)) 6826 continue; 6827 6828 /* 6829 * We don't use this subpage if the user didn't 6830 * request all subpages. We already checked (above) 6831 * to make sure the user only specified a subpage 6832 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6833 */ 6834 if ((page_index->subpage != 0) 6835 && (subpage == SMS_SUBPAGE_PAGE_0)) 6836 continue; 6837 6838 /* 6839 * Call the handler, if it exists, to update the 6840 * page to the latest values. 6841 */ 6842 if (page_index->sense_handler != NULL) 6843 page_index->sense_handler(ctsio, page_index,pc); 6844 6845 memcpy(ctsio->kern_data_ptr + data_used, 6846 page_index->page_data + 6847 (page_index->page_len * pc), 6848 page_index->page_len); 6849 data_used += page_index->page_len; 6850 } 6851 break; 6852 } 6853 default: { 6854 int i, data_used; 6855 6856 data_used = header_len; 6857 6858 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6859 struct ctl_page_index *page_index; 6860 6861 page_index = &lun->mode_pages.index[i]; 6862 6863 /* Look for the right page code */ 6864 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6865 continue; 6866 6867 /* Look for the right subpage or the subpage wildcard*/ 6868 if ((page_index->subpage != subpage) 6869 && (subpage != SMS_SUBPAGE_ALL)) 6870 continue; 6871 6872 /* Make sure the page is supported for this dev type */ 6873 if ((control_dev != 0) 6874 && (page_index->page_flags & 6875 CTL_PAGE_FLAG_DISK_ONLY)) 6876 continue; 6877 6878 /* 6879 * Call the handler, if it exists, to update the 6880 * page to the latest values. 6881 */ 6882 if (page_index->sense_handler != NULL) 6883 page_index->sense_handler(ctsio, page_index,pc); 6884 6885 memcpy(ctsio->kern_data_ptr + data_used, 6886 page_index->page_data + 6887 (page_index->page_len * pc), 6888 page_index->page_len); 6889 data_used += page_index->page_len; 6890 } 6891 break; 6892 } 6893 } 6894 6895 ctl_set_success(ctsio); 6896 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6897 ctsio->be_move_done = ctl_config_move_done; 6898 ctl_datamove((union ctl_io *)ctsio); 6899 return (CTL_RETVAL_COMPLETE); 6900} 6901 6902int 6903ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6904 struct ctl_page_index *page_index, 6905 int pc) 6906{ 6907 struct ctl_lun *lun; 6908 struct scsi_log_param_header *phdr; 6909 uint8_t *data; 6910 uint64_t val; 6911 6912 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6913 data = page_index->page_data; 6914 6915 if (lun->backend->lun_attr != NULL && 6916 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6917 != UINT64_MAX) { 6918 phdr = (struct scsi_log_param_header *)data; 6919 scsi_ulto2b(0x0001, phdr->param_code); 6920 phdr->param_control = SLP_LBIN | SLP_LP; 6921 phdr->param_len = 8; 6922 data = (uint8_t *)(phdr + 1); 6923 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6924 data[4] = 0x02; /* per-pool */ 6925 data += phdr->param_len; 6926 } 6927 6928 if (lun->backend->lun_attr != NULL && 6929 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6930 != UINT64_MAX) { 6931 phdr = (struct scsi_log_param_header *)data; 6932 scsi_ulto2b(0x0002, phdr->param_code); 6933 phdr->param_control = SLP_LBIN | SLP_LP; 6934 phdr->param_len = 8; 6935 data = (uint8_t *)(phdr + 1); 6936 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6937 data[4] = 0x01; /* per-LUN */ 6938 data += phdr->param_len; 6939 } 6940 6941 if (lun->backend->lun_attr != NULL && 6942 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6943 != UINT64_MAX) { 6944 phdr = (struct scsi_log_param_header *)data; 6945 scsi_ulto2b(0x00f1, phdr->param_code); 6946 phdr->param_control = SLP_LBIN | SLP_LP; 6947 phdr->param_len = 8; 6948 data = (uint8_t *)(phdr + 1); 6949 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6950 data[4] = 0x02; /* per-pool */ 6951 data += phdr->param_len; 6952 } 6953 6954 if (lun->backend->lun_attr != NULL && 6955 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6956 != UINT64_MAX) { 6957 phdr = (struct scsi_log_param_header *)data; 6958 scsi_ulto2b(0x00f2, phdr->param_code); 6959 phdr->param_control = SLP_LBIN | SLP_LP; 6960 phdr->param_len = 8; 6961 data = (uint8_t *)(phdr + 1); 6962 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6963 data[4] = 0x02; /* per-pool */ 6964 data += phdr->param_len; 6965 } 6966 6967 page_index->page_len = data - page_index->page_data; 6968 return (0); 6969} 6970 6971int 6972ctl_log_sense(struct ctl_scsiio *ctsio) 6973{ 6974 struct ctl_lun *lun; 6975 int i, pc, page_code, subpage; 6976 int alloc_len, total_len; 6977 struct ctl_page_index *page_index; 6978 struct scsi_log_sense *cdb; 6979 struct scsi_log_header *header; 6980 6981 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6982 6983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6984 cdb = (struct scsi_log_sense *)ctsio->cdb; 6985 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6986 page_code = cdb->page & SLS_PAGE_CODE; 6987 subpage = cdb->subpage; 6988 alloc_len = scsi_2btoul(cdb->length); 6989 6990 page_index = NULL; 6991 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6992 page_index = &lun->log_pages.index[i]; 6993 6994 /* Look for the right page code */ 6995 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6996 continue; 6997 6998 /* Look for the right subpage or the subpage wildcard*/ 6999 if (page_index->subpage != subpage) 7000 continue; 7001 7002 break; 7003 } 7004 if (i >= CTL_NUM_LOG_PAGES) { 7005 ctl_set_invalid_field(ctsio, 7006 /*sks_valid*/ 1, 7007 /*command*/ 1, 7008 /*field*/ 2, 7009 /*bit_valid*/ 0, 7010 /*bit*/ 0); 7011 ctl_done((union ctl_io *)ctsio); 7012 return (CTL_RETVAL_COMPLETE); 7013 } 7014 7015 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7016 7017 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7018 ctsio->kern_sg_entries = 0; 7019 ctsio->kern_data_resid = 0; 7020 ctsio->kern_rel_offset = 0; 7021 if (total_len < alloc_len) { 7022 ctsio->residual = alloc_len - total_len; 7023 ctsio->kern_data_len = total_len; 7024 ctsio->kern_total_len = total_len; 7025 } else { 7026 ctsio->residual = 0; 7027 ctsio->kern_data_len = alloc_len; 7028 ctsio->kern_total_len = alloc_len; 7029 } 7030 7031 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7032 header->page = page_index->page_code; 7033 if (page_index->subpage) { 7034 header->page |= SL_SPF; 7035 header->subpage = page_index->subpage; 7036 } 7037 scsi_ulto2b(page_index->page_len, header->datalen); 7038 7039 /* 7040 * Call the handler, if it exists, to update the 7041 * page to the latest values. 7042 */ 7043 if (page_index->sense_handler != NULL) 7044 page_index->sense_handler(ctsio, page_index, pc); 7045 7046 memcpy(header + 1, page_index->page_data, page_index->page_len); 7047 7048 ctl_set_success(ctsio); 7049 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7050 ctsio->be_move_done = ctl_config_move_done; 7051 ctl_datamove((union ctl_io *)ctsio); 7052 return (CTL_RETVAL_COMPLETE); 7053} 7054 7055int 7056ctl_read_capacity(struct ctl_scsiio *ctsio) 7057{ 7058 struct scsi_read_capacity *cdb; 7059 struct scsi_read_capacity_data *data; 7060 struct ctl_lun *lun; 7061 uint32_t lba; 7062 7063 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7064 7065 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7066 7067 lba = scsi_4btoul(cdb->addr); 7068 if (((cdb->pmi & SRC_PMI) == 0) 7069 && (lba != 0)) { 7070 ctl_set_invalid_field(/*ctsio*/ ctsio, 7071 /*sks_valid*/ 1, 7072 /*command*/ 1, 7073 /*field*/ 2, 7074 /*bit_valid*/ 0, 7075 /*bit*/ 0); 7076 ctl_done((union ctl_io *)ctsio); 7077 return (CTL_RETVAL_COMPLETE); 7078 } 7079 7080 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7081 7082 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7083 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7084 ctsio->residual = 0; 7085 ctsio->kern_data_len = sizeof(*data); 7086 ctsio->kern_total_len = sizeof(*data); 7087 ctsio->kern_data_resid = 0; 7088 ctsio->kern_rel_offset = 0; 7089 ctsio->kern_sg_entries = 0; 7090 7091 /* 7092 * If the maximum LBA is greater than 0xfffffffe, the user must 7093 * issue a SERVICE ACTION IN (16) command, with the read capacity 7094 * serivce action set. 7095 */ 7096 if (lun->be_lun->maxlba > 0xfffffffe) 7097 scsi_ulto4b(0xffffffff, data->addr); 7098 else 7099 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7100 7101 /* 7102 * XXX KDM this may not be 512 bytes... 7103 */ 7104 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7105 7106 ctl_set_success(ctsio); 7107 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7108 ctsio->be_move_done = ctl_config_move_done; 7109 ctl_datamove((union ctl_io *)ctsio); 7110 return (CTL_RETVAL_COMPLETE); 7111} 7112 7113int 7114ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7115{ 7116 struct scsi_read_capacity_16 *cdb; 7117 struct scsi_read_capacity_data_long *data; 7118 struct ctl_lun *lun; 7119 uint64_t lba; 7120 uint32_t alloc_len; 7121 7122 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7123 7124 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7125 7126 alloc_len = scsi_4btoul(cdb->alloc_len); 7127 lba = scsi_8btou64(cdb->addr); 7128 7129 if ((cdb->reladr & SRC16_PMI) 7130 && (lba != 0)) { 7131 ctl_set_invalid_field(/*ctsio*/ ctsio, 7132 /*sks_valid*/ 1, 7133 /*command*/ 1, 7134 /*field*/ 2, 7135 /*bit_valid*/ 0, 7136 /*bit*/ 0); 7137 ctl_done((union ctl_io *)ctsio); 7138 return (CTL_RETVAL_COMPLETE); 7139 } 7140 7141 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7142 7143 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7144 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7145 7146 if (sizeof(*data) < alloc_len) { 7147 ctsio->residual = alloc_len - sizeof(*data); 7148 ctsio->kern_data_len = sizeof(*data); 7149 ctsio->kern_total_len = sizeof(*data); 7150 } else { 7151 ctsio->residual = 0; 7152 ctsio->kern_data_len = alloc_len; 7153 ctsio->kern_total_len = alloc_len; 7154 } 7155 ctsio->kern_data_resid = 0; 7156 ctsio->kern_rel_offset = 0; 7157 ctsio->kern_sg_entries = 0; 7158 7159 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7160 /* XXX KDM this may not be 512 bytes... */ 7161 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7162 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7163 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7164 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7165 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7166 7167 ctl_set_success(ctsio); 7168 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7169 ctsio->be_move_done = ctl_config_move_done; 7170 ctl_datamove((union ctl_io *)ctsio); 7171 return (CTL_RETVAL_COMPLETE); 7172} 7173 7174int 7175ctl_get_lba_status(struct ctl_scsiio *ctsio) 7176{ 7177 struct scsi_get_lba_status *cdb; 7178 struct scsi_get_lba_status_data *data; 7179 struct ctl_lun *lun; 7180 struct ctl_lba_len_flags *lbalen; 7181 uint64_t lba; 7182 uint32_t alloc_len, total_len; 7183 int retval; 7184 7185 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7186 7187 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7188 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7189 lba = scsi_8btou64(cdb->addr); 7190 alloc_len = scsi_4btoul(cdb->alloc_len); 7191 7192 if (lba > lun->be_lun->maxlba) { 7193 ctl_set_lba_out_of_range(ctsio); 7194 ctl_done((union ctl_io *)ctsio); 7195 return (CTL_RETVAL_COMPLETE); 7196 } 7197 7198 total_len = sizeof(*data) + sizeof(data->descr[0]); 7199 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7200 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7201 7202 if (total_len < alloc_len) { 7203 ctsio->residual = alloc_len - total_len; 7204 ctsio->kern_data_len = total_len; 7205 ctsio->kern_total_len = total_len; 7206 } else { 7207 ctsio->residual = 0; 7208 ctsio->kern_data_len = alloc_len; 7209 ctsio->kern_total_len = alloc_len; 7210 } 7211 ctsio->kern_data_resid = 0; 7212 ctsio->kern_rel_offset = 0; 7213 ctsio->kern_sg_entries = 0; 7214 7215 /* Fill dummy data in case backend can't tell anything. */ 7216 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7217 scsi_u64to8b(lba, data->descr[0].addr); 7218 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7219 data->descr[0].length); 7220 data->descr[0].status = 0; /* Mapped or unknown. */ 7221 7222 ctl_set_success(ctsio); 7223 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7224 ctsio->be_move_done = ctl_config_move_done; 7225 7226 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7227 lbalen->lba = lba; 7228 lbalen->len = total_len; 7229 lbalen->flags = 0; 7230 retval = lun->backend->config_read((union ctl_io *)ctsio); 7231 return (CTL_RETVAL_COMPLETE); 7232} 7233 7234int 7235ctl_read_defect(struct ctl_scsiio *ctsio) 7236{ 7237 struct scsi_read_defect_data_10 *ccb10; 7238 struct scsi_read_defect_data_12 *ccb12; 7239 struct scsi_read_defect_data_hdr_10 *data10; 7240 struct scsi_read_defect_data_hdr_12 *data12; 7241 uint32_t alloc_len, data_len; 7242 uint8_t format; 7243 7244 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7245 7246 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7247 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7248 format = ccb10->format; 7249 alloc_len = scsi_2btoul(ccb10->alloc_length); 7250 data_len = sizeof(*data10); 7251 } else { 7252 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7253 format = ccb12->format; 7254 alloc_len = scsi_4btoul(ccb12->alloc_length); 7255 data_len = sizeof(*data12); 7256 } 7257 if (alloc_len == 0) { 7258 ctl_set_success(ctsio); 7259 ctl_done((union ctl_io *)ctsio); 7260 return (CTL_RETVAL_COMPLETE); 7261 } 7262 7263 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7264 if (data_len < alloc_len) { 7265 ctsio->residual = alloc_len - data_len; 7266 ctsio->kern_data_len = data_len; 7267 ctsio->kern_total_len = data_len; 7268 } else { 7269 ctsio->residual = 0; 7270 ctsio->kern_data_len = alloc_len; 7271 ctsio->kern_total_len = alloc_len; 7272 } 7273 ctsio->kern_data_resid = 0; 7274 ctsio->kern_rel_offset = 0; 7275 ctsio->kern_sg_entries = 0; 7276 7277 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7278 data10 = (struct scsi_read_defect_data_hdr_10 *) 7279 ctsio->kern_data_ptr; 7280 data10->format = format; 7281 scsi_ulto2b(0, data10->length); 7282 } else { 7283 data12 = (struct scsi_read_defect_data_hdr_12 *) 7284 ctsio->kern_data_ptr; 7285 data12->format = format; 7286 scsi_ulto2b(0, data12->generation); 7287 scsi_ulto4b(0, data12->length); 7288 } 7289 7290 ctl_set_success(ctsio); 7291 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7292 ctsio->be_move_done = ctl_config_move_done; 7293 ctl_datamove((union ctl_io *)ctsio); 7294 return (CTL_RETVAL_COMPLETE); 7295} 7296 7297int 7298ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7299{ 7300 struct scsi_maintenance_in *cdb; 7301 int retval; 7302 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7303 int num_target_port_groups, num_target_ports; 7304 struct ctl_lun *lun; 7305 struct ctl_softc *softc; 7306 struct ctl_port *port; 7307 struct scsi_target_group_data *rtg_ptr; 7308 struct scsi_target_group_data_extended *rtg_ext_ptr; 7309 struct scsi_target_port_group_descriptor *tpg_desc; 7310 7311 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7312 7313 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7314 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7315 softc = lun->ctl_softc; 7316 7317 retval = CTL_RETVAL_COMPLETE; 7318 7319 switch (cdb->byte2 & STG_PDF_MASK) { 7320 case STG_PDF_LENGTH: 7321 ext = 0; 7322 break; 7323 case STG_PDF_EXTENDED: 7324 ext = 1; 7325 break; 7326 default: 7327 ctl_set_invalid_field(/*ctsio*/ ctsio, 7328 /*sks_valid*/ 1, 7329 /*command*/ 1, 7330 /*field*/ 2, 7331 /*bit_valid*/ 1, 7332 /*bit*/ 5); 7333 ctl_done((union ctl_io *)ctsio); 7334 return(retval); 7335 } 7336 7337 if (softc->is_single) 7338 num_target_port_groups = 1; 7339 else 7340 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7341 num_target_ports = 0; 7342 mtx_lock(&softc->ctl_lock); 7343 STAILQ_FOREACH(port, &softc->port_list, links) { 7344 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7345 continue; 7346 if (ctl_map_lun_back(softc, port->targ_port, lun->lun) >= 7347 CTL_MAX_LUNS) 7348 continue; 7349 num_target_ports++; 7350 } 7351 mtx_unlock(&softc->ctl_lock); 7352 7353 if (ext) 7354 total_len = sizeof(struct scsi_target_group_data_extended); 7355 else 7356 total_len = sizeof(struct scsi_target_group_data); 7357 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7358 num_target_port_groups + 7359 sizeof(struct scsi_target_port_descriptor) * 7360 num_target_ports * num_target_port_groups; 7361 7362 alloc_len = scsi_4btoul(cdb->length); 7363 7364 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7365 7366 ctsio->kern_sg_entries = 0; 7367 7368 if (total_len < alloc_len) { 7369 ctsio->residual = alloc_len - total_len; 7370 ctsio->kern_data_len = total_len; 7371 ctsio->kern_total_len = total_len; 7372 } else { 7373 ctsio->residual = 0; 7374 ctsio->kern_data_len = alloc_len; 7375 ctsio->kern_total_len = alloc_len; 7376 } 7377 ctsio->kern_data_resid = 0; 7378 ctsio->kern_rel_offset = 0; 7379 7380 if (ext) { 7381 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7382 ctsio->kern_data_ptr; 7383 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7384 rtg_ext_ptr->format_type = 0x10; 7385 rtg_ext_ptr->implicit_transition_time = 0; 7386 tpg_desc = &rtg_ext_ptr->groups[0]; 7387 } else { 7388 rtg_ptr = (struct scsi_target_group_data *) 7389 ctsio->kern_data_ptr; 7390 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7391 tpg_desc = &rtg_ptr->groups[0]; 7392 } 7393 7394 mtx_lock(&softc->ctl_lock); 7395 pg = softc->port_offset / CTL_MAX_PORTS; 7396 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7397 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7398 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7399 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7400 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7401 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7402 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7403 } else { 7404 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7405 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7406 } 7407 } else { 7408 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7409 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7410 } 7411 for (g = 0; g < num_target_port_groups; g++) { 7412 tpg_desc->pref_state = (g == pg) ? gs : os; 7413 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7414 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7415 tpg_desc->status = TPG_IMPLICIT; 7416 pc = 0; 7417 STAILQ_FOREACH(port, &softc->port_list, links) { 7418 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7419 continue; 7420 if (ctl_map_lun_back(softc, port->targ_port, lun->lun) 7421 >= CTL_MAX_LUNS) 7422 continue; 7423 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7424 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7425 relative_target_port_identifier); 7426 pc++; 7427 } 7428 tpg_desc->target_port_count = pc; 7429 tpg_desc = (struct scsi_target_port_group_descriptor *) 7430 &tpg_desc->descriptors[pc]; 7431 } 7432 mtx_unlock(&softc->ctl_lock); 7433 7434 ctl_set_success(ctsio); 7435 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7436 ctsio->be_move_done = ctl_config_move_done; 7437 ctl_datamove((union ctl_io *)ctsio); 7438 return(retval); 7439} 7440 7441int 7442ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7443{ 7444 struct ctl_lun *lun; 7445 struct scsi_report_supported_opcodes *cdb; 7446 const struct ctl_cmd_entry *entry, *sentry; 7447 struct scsi_report_supported_opcodes_all *all; 7448 struct scsi_report_supported_opcodes_descr *descr; 7449 struct scsi_report_supported_opcodes_one *one; 7450 int retval; 7451 int alloc_len, total_len; 7452 int opcode, service_action, i, j, num; 7453 7454 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7455 7456 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7457 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7458 7459 retval = CTL_RETVAL_COMPLETE; 7460 7461 opcode = cdb->requested_opcode; 7462 service_action = scsi_2btoul(cdb->requested_service_action); 7463 switch (cdb->options & RSO_OPTIONS_MASK) { 7464 case RSO_OPTIONS_ALL: 7465 num = 0; 7466 for (i = 0; i < 256; i++) { 7467 entry = &ctl_cmd_table[i]; 7468 if (entry->flags & CTL_CMD_FLAG_SA5) { 7469 for (j = 0; j < 32; j++) { 7470 sentry = &((const struct ctl_cmd_entry *) 7471 entry->execute)[j]; 7472 if (ctl_cmd_applicable( 7473 lun->be_lun->lun_type, sentry)) 7474 num++; 7475 } 7476 } else { 7477 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7478 entry)) 7479 num++; 7480 } 7481 } 7482 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7483 num * sizeof(struct scsi_report_supported_opcodes_descr); 7484 break; 7485 case RSO_OPTIONS_OC: 7486 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7487 ctl_set_invalid_field(/*ctsio*/ ctsio, 7488 /*sks_valid*/ 1, 7489 /*command*/ 1, 7490 /*field*/ 2, 7491 /*bit_valid*/ 1, 7492 /*bit*/ 2); 7493 ctl_done((union ctl_io *)ctsio); 7494 return (CTL_RETVAL_COMPLETE); 7495 } 7496 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7497 break; 7498 case RSO_OPTIONS_OC_SA: 7499 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7500 service_action >= 32) { 7501 ctl_set_invalid_field(/*ctsio*/ ctsio, 7502 /*sks_valid*/ 1, 7503 /*command*/ 1, 7504 /*field*/ 2, 7505 /*bit_valid*/ 1, 7506 /*bit*/ 2); 7507 ctl_done((union ctl_io *)ctsio); 7508 return (CTL_RETVAL_COMPLETE); 7509 } 7510 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7511 break; 7512 default: 7513 ctl_set_invalid_field(/*ctsio*/ ctsio, 7514 /*sks_valid*/ 1, 7515 /*command*/ 1, 7516 /*field*/ 2, 7517 /*bit_valid*/ 1, 7518 /*bit*/ 2); 7519 ctl_done((union ctl_io *)ctsio); 7520 return (CTL_RETVAL_COMPLETE); 7521 } 7522 7523 alloc_len = scsi_4btoul(cdb->length); 7524 7525 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7526 7527 ctsio->kern_sg_entries = 0; 7528 7529 if (total_len < alloc_len) { 7530 ctsio->residual = alloc_len - total_len; 7531 ctsio->kern_data_len = total_len; 7532 ctsio->kern_total_len = total_len; 7533 } else { 7534 ctsio->residual = 0; 7535 ctsio->kern_data_len = alloc_len; 7536 ctsio->kern_total_len = alloc_len; 7537 } 7538 ctsio->kern_data_resid = 0; 7539 ctsio->kern_rel_offset = 0; 7540 7541 switch (cdb->options & RSO_OPTIONS_MASK) { 7542 case RSO_OPTIONS_ALL: 7543 all = (struct scsi_report_supported_opcodes_all *) 7544 ctsio->kern_data_ptr; 7545 num = 0; 7546 for (i = 0; i < 256; i++) { 7547 entry = &ctl_cmd_table[i]; 7548 if (entry->flags & CTL_CMD_FLAG_SA5) { 7549 for (j = 0; j < 32; j++) { 7550 sentry = &((const struct ctl_cmd_entry *) 7551 entry->execute)[j]; 7552 if (!ctl_cmd_applicable( 7553 lun->be_lun->lun_type, sentry)) 7554 continue; 7555 descr = &all->descr[num++]; 7556 descr->opcode = i; 7557 scsi_ulto2b(j, descr->service_action); 7558 descr->flags = RSO_SERVACTV; 7559 scsi_ulto2b(sentry->length, 7560 descr->cdb_length); 7561 } 7562 } else { 7563 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7564 entry)) 7565 continue; 7566 descr = &all->descr[num++]; 7567 descr->opcode = i; 7568 scsi_ulto2b(0, descr->service_action); 7569 descr->flags = 0; 7570 scsi_ulto2b(entry->length, descr->cdb_length); 7571 } 7572 } 7573 scsi_ulto4b( 7574 num * sizeof(struct scsi_report_supported_opcodes_descr), 7575 all->length); 7576 break; 7577 case RSO_OPTIONS_OC: 7578 one = (struct scsi_report_supported_opcodes_one *) 7579 ctsio->kern_data_ptr; 7580 entry = &ctl_cmd_table[opcode]; 7581 goto fill_one; 7582 case RSO_OPTIONS_OC_SA: 7583 one = (struct scsi_report_supported_opcodes_one *) 7584 ctsio->kern_data_ptr; 7585 entry = &ctl_cmd_table[opcode]; 7586 entry = &((const struct ctl_cmd_entry *) 7587 entry->execute)[service_action]; 7588fill_one: 7589 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7590 one->support = 3; 7591 scsi_ulto2b(entry->length, one->cdb_length); 7592 one->cdb_usage[0] = opcode; 7593 memcpy(&one->cdb_usage[1], entry->usage, 7594 entry->length - 1); 7595 } else 7596 one->support = 1; 7597 break; 7598 } 7599 7600 ctl_set_success(ctsio); 7601 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7602 ctsio->be_move_done = ctl_config_move_done; 7603 ctl_datamove((union ctl_io *)ctsio); 7604 return(retval); 7605} 7606 7607int 7608ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7609{ 7610 struct scsi_report_supported_tmf *cdb; 7611 struct scsi_report_supported_tmf_data *data; 7612 int retval; 7613 int alloc_len, total_len; 7614 7615 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7616 7617 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7618 7619 retval = CTL_RETVAL_COMPLETE; 7620 7621 total_len = sizeof(struct scsi_report_supported_tmf_data); 7622 alloc_len = scsi_4btoul(cdb->length); 7623 7624 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7625 7626 ctsio->kern_sg_entries = 0; 7627 7628 if (total_len < alloc_len) { 7629 ctsio->residual = alloc_len - total_len; 7630 ctsio->kern_data_len = total_len; 7631 ctsio->kern_total_len = total_len; 7632 } else { 7633 ctsio->residual = 0; 7634 ctsio->kern_data_len = alloc_len; 7635 ctsio->kern_total_len = alloc_len; 7636 } 7637 ctsio->kern_data_resid = 0; 7638 ctsio->kern_rel_offset = 0; 7639 7640 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7641 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7642 data->byte2 |= RST_ITNRS; 7643 7644 ctl_set_success(ctsio); 7645 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7646 ctsio->be_move_done = ctl_config_move_done; 7647 ctl_datamove((union ctl_io *)ctsio); 7648 return (retval); 7649} 7650 7651int 7652ctl_report_timestamp(struct ctl_scsiio *ctsio) 7653{ 7654 struct scsi_report_timestamp *cdb; 7655 struct scsi_report_timestamp_data *data; 7656 struct timeval tv; 7657 int64_t timestamp; 7658 int retval; 7659 int alloc_len, total_len; 7660 7661 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7662 7663 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7664 7665 retval = CTL_RETVAL_COMPLETE; 7666 7667 total_len = sizeof(struct scsi_report_timestamp_data); 7668 alloc_len = scsi_4btoul(cdb->length); 7669 7670 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7671 7672 ctsio->kern_sg_entries = 0; 7673 7674 if (total_len < alloc_len) { 7675 ctsio->residual = alloc_len - total_len; 7676 ctsio->kern_data_len = total_len; 7677 ctsio->kern_total_len = total_len; 7678 } else { 7679 ctsio->residual = 0; 7680 ctsio->kern_data_len = alloc_len; 7681 ctsio->kern_total_len = alloc_len; 7682 } 7683 ctsio->kern_data_resid = 0; 7684 ctsio->kern_rel_offset = 0; 7685 7686 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7687 scsi_ulto2b(sizeof(*data) - 2, data->length); 7688 data->origin = RTS_ORIG_OUTSIDE; 7689 getmicrotime(&tv); 7690 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7691 scsi_ulto4b(timestamp >> 16, data->timestamp); 7692 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7693 7694 ctl_set_success(ctsio); 7695 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7696 ctsio->be_move_done = ctl_config_move_done; 7697 ctl_datamove((union ctl_io *)ctsio); 7698 return (retval); 7699} 7700 7701int 7702ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7703{ 7704 struct scsi_per_res_in *cdb; 7705 int alloc_len, total_len = 0; 7706 /* struct scsi_per_res_in_rsrv in_data; */ 7707 struct ctl_lun *lun; 7708 struct ctl_softc *softc; 7709 uint64_t key; 7710 7711 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7712 7713 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7714 7715 alloc_len = scsi_2btoul(cdb->length); 7716 7717 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7718 softc = lun->ctl_softc; 7719 7720retry: 7721 mtx_lock(&lun->lun_lock); 7722 switch (cdb->action) { 7723 case SPRI_RK: /* read keys */ 7724 total_len = sizeof(struct scsi_per_res_in_keys) + 7725 lun->pr_key_count * 7726 sizeof(struct scsi_per_res_key); 7727 break; 7728 case SPRI_RR: /* read reservation */ 7729 if (lun->flags & CTL_LUN_PR_RESERVED) 7730 total_len = sizeof(struct scsi_per_res_in_rsrv); 7731 else 7732 total_len = sizeof(struct scsi_per_res_in_header); 7733 break; 7734 case SPRI_RC: /* report capabilities */ 7735 total_len = sizeof(struct scsi_per_res_cap); 7736 break; 7737 case SPRI_RS: /* read full status */ 7738 total_len = sizeof(struct scsi_per_res_in_header) + 7739 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7740 lun->pr_key_count; 7741 break; 7742 default: 7743 panic("Invalid PR type %x", cdb->action); 7744 } 7745 mtx_unlock(&lun->lun_lock); 7746 7747 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7748 7749 if (total_len < alloc_len) { 7750 ctsio->residual = alloc_len - total_len; 7751 ctsio->kern_data_len = total_len; 7752 ctsio->kern_total_len = total_len; 7753 } else { 7754 ctsio->residual = 0; 7755 ctsio->kern_data_len = alloc_len; 7756 ctsio->kern_total_len = alloc_len; 7757 } 7758 7759 ctsio->kern_data_resid = 0; 7760 ctsio->kern_rel_offset = 0; 7761 ctsio->kern_sg_entries = 0; 7762 7763 mtx_lock(&lun->lun_lock); 7764 switch (cdb->action) { 7765 case SPRI_RK: { // read keys 7766 struct scsi_per_res_in_keys *res_keys; 7767 int i, key_count; 7768 7769 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7770 7771 /* 7772 * We had to drop the lock to allocate our buffer, which 7773 * leaves time for someone to come in with another 7774 * persistent reservation. (That is unlikely, though, 7775 * since this should be the only persistent reservation 7776 * command active right now.) 7777 */ 7778 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7779 (lun->pr_key_count * 7780 sizeof(struct scsi_per_res_key)))){ 7781 mtx_unlock(&lun->lun_lock); 7782 free(ctsio->kern_data_ptr, M_CTL); 7783 printf("%s: reservation length changed, retrying\n", 7784 __func__); 7785 goto retry; 7786 } 7787 7788 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7789 7790 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7791 lun->pr_key_count, res_keys->header.length); 7792 7793 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7794 if ((key = ctl_get_prkey(lun, i)) == 0) 7795 continue; 7796 7797 /* 7798 * We used lun->pr_key_count to calculate the 7799 * size to allocate. If it turns out the number of 7800 * initiators with the registered flag set is 7801 * larger than that (i.e. they haven't been kept in 7802 * sync), we've got a problem. 7803 */ 7804 if (key_count >= lun->pr_key_count) { 7805#ifdef NEEDTOPORT 7806 csevent_log(CSC_CTL | CSC_SHELF_SW | 7807 CTL_PR_ERROR, 7808 csevent_LogType_Fault, 7809 csevent_AlertLevel_Yellow, 7810 csevent_FRU_ShelfController, 7811 csevent_FRU_Firmware, 7812 csevent_FRU_Unknown, 7813 "registered keys %d >= key " 7814 "count %d", key_count, 7815 lun->pr_key_count); 7816#endif 7817 key_count++; 7818 continue; 7819 } 7820 scsi_u64to8b(key, res_keys->keys[key_count].key); 7821 key_count++; 7822 } 7823 break; 7824 } 7825 case SPRI_RR: { // read reservation 7826 struct scsi_per_res_in_rsrv *res; 7827 int tmp_len, header_only; 7828 7829 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7830 7831 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7832 7833 if (lun->flags & CTL_LUN_PR_RESERVED) 7834 { 7835 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7836 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7837 res->header.length); 7838 header_only = 0; 7839 } else { 7840 tmp_len = sizeof(struct scsi_per_res_in_header); 7841 scsi_ulto4b(0, res->header.length); 7842 header_only = 1; 7843 } 7844 7845 /* 7846 * We had to drop the lock to allocate our buffer, which 7847 * leaves time for someone to come in with another 7848 * persistent reservation. (That is unlikely, though, 7849 * since this should be the only persistent reservation 7850 * command active right now.) 7851 */ 7852 if (tmp_len != total_len) { 7853 mtx_unlock(&lun->lun_lock); 7854 free(ctsio->kern_data_ptr, M_CTL); 7855 printf("%s: reservation status changed, retrying\n", 7856 __func__); 7857 goto retry; 7858 } 7859 7860 /* 7861 * No reservation held, so we're done. 7862 */ 7863 if (header_only != 0) 7864 break; 7865 7866 /* 7867 * If the registration is an All Registrants type, the key 7868 * is 0, since it doesn't really matter. 7869 */ 7870 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7871 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7872 res->data.reservation); 7873 } 7874 res->data.scopetype = lun->res_type; 7875 break; 7876 } 7877 case SPRI_RC: //report capabilities 7878 { 7879 struct scsi_per_res_cap *res_cap; 7880 uint16_t type_mask; 7881 7882 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7883 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7884 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7885 type_mask = SPRI_TM_WR_EX_AR | 7886 SPRI_TM_EX_AC_RO | 7887 SPRI_TM_WR_EX_RO | 7888 SPRI_TM_EX_AC | 7889 SPRI_TM_WR_EX | 7890 SPRI_TM_EX_AC_AR; 7891 scsi_ulto2b(type_mask, res_cap->type_mask); 7892 break; 7893 } 7894 case SPRI_RS: { // read full status 7895 struct scsi_per_res_in_full *res_status; 7896 struct scsi_per_res_in_full_desc *res_desc; 7897 struct ctl_port *port; 7898 int i, len; 7899 7900 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7901 7902 /* 7903 * We had to drop the lock to allocate our buffer, which 7904 * leaves time for someone to come in with another 7905 * persistent reservation. (That is unlikely, though, 7906 * since this should be the only persistent reservation 7907 * command active right now.) 7908 */ 7909 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7910 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7911 lun->pr_key_count)){ 7912 mtx_unlock(&lun->lun_lock); 7913 free(ctsio->kern_data_ptr, M_CTL); 7914 printf("%s: reservation length changed, retrying\n", 7915 __func__); 7916 goto retry; 7917 } 7918 7919 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7920 7921 res_desc = &res_status->desc[0]; 7922 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7923 if ((key = ctl_get_prkey(lun, i)) == 0) 7924 continue; 7925 7926 scsi_u64to8b(key, res_desc->res_key.key); 7927 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7928 (lun->pr_res_idx == i || 7929 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7930 res_desc->flags = SPRI_FULL_R_HOLDER; 7931 res_desc->scopetype = lun->res_type; 7932 } 7933 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7934 res_desc->rel_trgt_port_id); 7935 len = 0; 7936 port = softc->ctl_ports[ 7937 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7938 if (port != NULL) 7939 len = ctl_create_iid(port, 7940 i % CTL_MAX_INIT_PER_PORT, 7941 res_desc->transport_id); 7942 scsi_ulto4b(len, res_desc->additional_length); 7943 res_desc = (struct scsi_per_res_in_full_desc *) 7944 &res_desc->transport_id[len]; 7945 } 7946 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7947 res_status->header.length); 7948 break; 7949 } 7950 default: 7951 /* 7952 * This is a bug, because we just checked for this above, 7953 * and should have returned an error. 7954 */ 7955 panic("Invalid PR type %x", cdb->action); 7956 break; /* NOTREACHED */ 7957 } 7958 mtx_unlock(&lun->lun_lock); 7959 7960 ctl_set_success(ctsio); 7961 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7962 ctsio->be_move_done = ctl_config_move_done; 7963 ctl_datamove((union ctl_io *)ctsio); 7964 return (CTL_RETVAL_COMPLETE); 7965} 7966 7967static void 7968ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7969{ 7970 int off = lun->ctl_softc->persis_offset; 7971 7972 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7973 ctl_est_ua(lun, residx - off, ua); 7974} 7975 7976/* 7977 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7978 * it should return. 7979 */ 7980static int 7981ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7982 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7983 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7984 struct scsi_per_res_out_parms* param) 7985{ 7986 union ctl_ha_msg persis_io; 7987 int retval, i; 7988 int isc_retval; 7989 7990 retval = 0; 7991 7992 mtx_lock(&lun->lun_lock); 7993 if (sa_res_key == 0) { 7994 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7995 /* validate scope and type */ 7996 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7997 SPR_LU_SCOPE) { 7998 mtx_unlock(&lun->lun_lock); 7999 ctl_set_invalid_field(/*ctsio*/ ctsio, 8000 /*sks_valid*/ 1, 8001 /*command*/ 1, 8002 /*field*/ 2, 8003 /*bit_valid*/ 1, 8004 /*bit*/ 4); 8005 ctl_done((union ctl_io *)ctsio); 8006 return (1); 8007 } 8008 8009 if (type>8 || type==2 || type==4 || type==0) { 8010 mtx_unlock(&lun->lun_lock); 8011 ctl_set_invalid_field(/*ctsio*/ ctsio, 8012 /*sks_valid*/ 1, 8013 /*command*/ 1, 8014 /*field*/ 2, 8015 /*bit_valid*/ 1, 8016 /*bit*/ 0); 8017 ctl_done((union ctl_io *)ctsio); 8018 return (1); 8019 } 8020 8021 /* 8022 * Unregister everybody else and build UA for 8023 * them 8024 */ 8025 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8026 if (i == residx || ctl_get_prkey(lun, i) == 0) 8027 continue; 8028 8029 ctl_clr_prkey(lun, i); 8030 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8031 } 8032 lun->pr_key_count = 1; 8033 lun->res_type = type; 8034 if (lun->res_type != SPR_TYPE_WR_EX_AR 8035 && lun->res_type != SPR_TYPE_EX_AC_AR) 8036 lun->pr_res_idx = residx; 8037 8038 /* send msg to other side */ 8039 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8040 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8041 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8042 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8043 persis_io.pr.pr_info.res_type = type; 8044 memcpy(persis_io.pr.pr_info.sa_res_key, 8045 param->serv_act_res_key, 8046 sizeof(param->serv_act_res_key)); 8047 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8048 &persis_io, sizeof(persis_io), 0)) > 8049 CTL_HA_STATUS_SUCCESS) { 8050 printf("CTL:Persis Out error returned " 8051 "from ctl_ha_msg_send %d\n", 8052 isc_retval); 8053 } 8054 } else { 8055 /* not all registrants */ 8056 mtx_unlock(&lun->lun_lock); 8057 free(ctsio->kern_data_ptr, M_CTL); 8058 ctl_set_invalid_field(ctsio, 8059 /*sks_valid*/ 1, 8060 /*command*/ 0, 8061 /*field*/ 8, 8062 /*bit_valid*/ 0, 8063 /*bit*/ 0); 8064 ctl_done((union ctl_io *)ctsio); 8065 return (1); 8066 } 8067 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8068 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8069 int found = 0; 8070 8071 if (res_key == sa_res_key) { 8072 /* special case */ 8073 /* 8074 * The spec implies this is not good but doesn't 8075 * say what to do. There are two choices either 8076 * generate a res conflict or check condition 8077 * with illegal field in parameter data. Since 8078 * that is what is done when the sa_res_key is 8079 * zero I'll take that approach since this has 8080 * to do with the sa_res_key. 8081 */ 8082 mtx_unlock(&lun->lun_lock); 8083 free(ctsio->kern_data_ptr, M_CTL); 8084 ctl_set_invalid_field(ctsio, 8085 /*sks_valid*/ 1, 8086 /*command*/ 0, 8087 /*field*/ 8, 8088 /*bit_valid*/ 0, 8089 /*bit*/ 0); 8090 ctl_done((union ctl_io *)ctsio); 8091 return (1); 8092 } 8093 8094 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8095 if (ctl_get_prkey(lun, i) != sa_res_key) 8096 continue; 8097 8098 found = 1; 8099 ctl_clr_prkey(lun, i); 8100 lun->pr_key_count--; 8101 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8102 } 8103 if (!found) { 8104 mtx_unlock(&lun->lun_lock); 8105 free(ctsio->kern_data_ptr, M_CTL); 8106 ctl_set_reservation_conflict(ctsio); 8107 ctl_done((union ctl_io *)ctsio); 8108 return (CTL_RETVAL_COMPLETE); 8109 } 8110 /* send msg to other side */ 8111 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8112 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8113 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8114 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8115 persis_io.pr.pr_info.res_type = type; 8116 memcpy(persis_io.pr.pr_info.sa_res_key, 8117 param->serv_act_res_key, 8118 sizeof(param->serv_act_res_key)); 8119 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8120 &persis_io, sizeof(persis_io), 0)) > 8121 CTL_HA_STATUS_SUCCESS) { 8122 printf("CTL:Persis Out error returned from " 8123 "ctl_ha_msg_send %d\n", isc_retval); 8124 } 8125 } else { 8126 /* Reserved but not all registrants */ 8127 /* sa_res_key is res holder */ 8128 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8129 /* validate scope and type */ 8130 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8131 SPR_LU_SCOPE) { 8132 mtx_unlock(&lun->lun_lock); 8133 ctl_set_invalid_field(/*ctsio*/ ctsio, 8134 /*sks_valid*/ 1, 8135 /*command*/ 1, 8136 /*field*/ 2, 8137 /*bit_valid*/ 1, 8138 /*bit*/ 4); 8139 ctl_done((union ctl_io *)ctsio); 8140 return (1); 8141 } 8142 8143 if (type>8 || type==2 || type==4 || type==0) { 8144 mtx_unlock(&lun->lun_lock); 8145 ctl_set_invalid_field(/*ctsio*/ ctsio, 8146 /*sks_valid*/ 1, 8147 /*command*/ 1, 8148 /*field*/ 2, 8149 /*bit_valid*/ 1, 8150 /*bit*/ 0); 8151 ctl_done((union ctl_io *)ctsio); 8152 return (1); 8153 } 8154 8155 /* 8156 * Do the following: 8157 * if sa_res_key != res_key remove all 8158 * registrants w/sa_res_key and generate UA 8159 * for these registrants(Registrations 8160 * Preempted) if it wasn't an exclusive 8161 * reservation generate UA(Reservations 8162 * Preempted) for all other registered nexuses 8163 * if the type has changed. Establish the new 8164 * reservation and holder. If res_key and 8165 * sa_res_key are the same do the above 8166 * except don't unregister the res holder. 8167 */ 8168 8169 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8170 if (i == residx || ctl_get_prkey(lun, i) == 0) 8171 continue; 8172 8173 if (sa_res_key == ctl_get_prkey(lun, i)) { 8174 ctl_clr_prkey(lun, i); 8175 lun->pr_key_count--; 8176 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8177 } else if (type != lun->res_type 8178 && (lun->res_type == SPR_TYPE_WR_EX_RO 8179 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8180 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8181 } 8182 } 8183 lun->res_type = type; 8184 if (lun->res_type != SPR_TYPE_WR_EX_AR 8185 && lun->res_type != SPR_TYPE_EX_AC_AR) 8186 lun->pr_res_idx = residx; 8187 else 8188 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8189 8190 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8191 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8192 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8193 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8194 persis_io.pr.pr_info.res_type = type; 8195 memcpy(persis_io.pr.pr_info.sa_res_key, 8196 param->serv_act_res_key, 8197 sizeof(param->serv_act_res_key)); 8198 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8199 &persis_io, sizeof(persis_io), 0)) > 8200 CTL_HA_STATUS_SUCCESS) { 8201 printf("CTL:Persis Out error returned " 8202 "from ctl_ha_msg_send %d\n", 8203 isc_retval); 8204 } 8205 } else { 8206 /* 8207 * sa_res_key is not the res holder just 8208 * remove registrants 8209 */ 8210 int found=0; 8211 8212 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8213 if (sa_res_key != ctl_get_prkey(lun, i)) 8214 continue; 8215 8216 found = 1; 8217 ctl_clr_prkey(lun, i); 8218 lun->pr_key_count--; 8219 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8220 } 8221 8222 if (!found) { 8223 mtx_unlock(&lun->lun_lock); 8224 free(ctsio->kern_data_ptr, M_CTL); 8225 ctl_set_reservation_conflict(ctsio); 8226 ctl_done((union ctl_io *)ctsio); 8227 return (1); 8228 } 8229 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8230 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8231 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8232 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8233 persis_io.pr.pr_info.res_type = type; 8234 memcpy(persis_io.pr.pr_info.sa_res_key, 8235 param->serv_act_res_key, 8236 sizeof(param->serv_act_res_key)); 8237 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8238 &persis_io, sizeof(persis_io), 0)) > 8239 CTL_HA_STATUS_SUCCESS) { 8240 printf("CTL:Persis Out error returned " 8241 "from ctl_ha_msg_send %d\n", 8242 isc_retval); 8243 } 8244 } 8245 } 8246 8247 lun->PRGeneration++; 8248 mtx_unlock(&lun->lun_lock); 8249 8250 return (retval); 8251} 8252 8253static void 8254ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8255{ 8256 uint64_t sa_res_key; 8257 int i; 8258 8259 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8260 8261 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8262 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8263 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8264 if (sa_res_key == 0) { 8265 /* 8266 * Unregister everybody else and build UA for 8267 * them 8268 */ 8269 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8270 if (i == msg->pr.pr_info.residx || 8271 ctl_get_prkey(lun, i) == 0) 8272 continue; 8273 8274 ctl_clr_prkey(lun, i); 8275 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8276 } 8277 8278 lun->pr_key_count = 1; 8279 lun->res_type = msg->pr.pr_info.res_type; 8280 if (lun->res_type != SPR_TYPE_WR_EX_AR 8281 && lun->res_type != SPR_TYPE_EX_AC_AR) 8282 lun->pr_res_idx = msg->pr.pr_info.residx; 8283 } else { 8284 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8285 if (sa_res_key == ctl_get_prkey(lun, i)) 8286 continue; 8287 8288 ctl_clr_prkey(lun, i); 8289 lun->pr_key_count--; 8290 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8291 } 8292 } 8293 } else { 8294 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8295 if (i == msg->pr.pr_info.residx || 8296 ctl_get_prkey(lun, i) == 0) 8297 continue; 8298 8299 if (sa_res_key == ctl_get_prkey(lun, i)) { 8300 ctl_clr_prkey(lun, i); 8301 lun->pr_key_count--; 8302 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8303 } else if (msg->pr.pr_info.res_type != lun->res_type 8304 && (lun->res_type == SPR_TYPE_WR_EX_RO 8305 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8306 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8307 } 8308 } 8309 lun->res_type = msg->pr.pr_info.res_type; 8310 if (lun->res_type != SPR_TYPE_WR_EX_AR 8311 && lun->res_type != SPR_TYPE_EX_AC_AR) 8312 lun->pr_res_idx = msg->pr.pr_info.residx; 8313 else 8314 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8315 } 8316 lun->PRGeneration++; 8317 8318} 8319 8320 8321int 8322ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8323{ 8324 int retval; 8325 int isc_retval; 8326 u_int32_t param_len; 8327 struct scsi_per_res_out *cdb; 8328 struct ctl_lun *lun; 8329 struct scsi_per_res_out_parms* param; 8330 struct ctl_softc *softc; 8331 uint32_t residx; 8332 uint64_t res_key, sa_res_key, key; 8333 uint8_t type; 8334 union ctl_ha_msg persis_io; 8335 int i; 8336 8337 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8338 8339 retval = CTL_RETVAL_COMPLETE; 8340 8341 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8342 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8343 softc = lun->ctl_softc; 8344 8345 /* 8346 * We only support whole-LUN scope. The scope & type are ignored for 8347 * register, register and ignore existing key and clear. 8348 * We sometimes ignore scope and type on preempts too!! 8349 * Verify reservation type here as well. 8350 */ 8351 type = cdb->scope_type & SPR_TYPE_MASK; 8352 if ((cdb->action == SPRO_RESERVE) 8353 || (cdb->action == SPRO_RELEASE)) { 8354 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8355 ctl_set_invalid_field(/*ctsio*/ ctsio, 8356 /*sks_valid*/ 1, 8357 /*command*/ 1, 8358 /*field*/ 2, 8359 /*bit_valid*/ 1, 8360 /*bit*/ 4); 8361 ctl_done((union ctl_io *)ctsio); 8362 return (CTL_RETVAL_COMPLETE); 8363 } 8364 8365 if (type>8 || type==2 || type==4 || type==0) { 8366 ctl_set_invalid_field(/*ctsio*/ ctsio, 8367 /*sks_valid*/ 1, 8368 /*command*/ 1, 8369 /*field*/ 2, 8370 /*bit_valid*/ 1, 8371 /*bit*/ 0); 8372 ctl_done((union ctl_io *)ctsio); 8373 return (CTL_RETVAL_COMPLETE); 8374 } 8375 } 8376 8377 param_len = scsi_4btoul(cdb->length); 8378 8379 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8380 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8381 ctsio->kern_data_len = param_len; 8382 ctsio->kern_total_len = param_len; 8383 ctsio->kern_data_resid = 0; 8384 ctsio->kern_rel_offset = 0; 8385 ctsio->kern_sg_entries = 0; 8386 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8387 ctsio->be_move_done = ctl_config_move_done; 8388 ctl_datamove((union ctl_io *)ctsio); 8389 8390 return (CTL_RETVAL_COMPLETE); 8391 } 8392 8393 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8394 8395 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8396 res_key = scsi_8btou64(param->res_key.key); 8397 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8398 8399 /* 8400 * Validate the reservation key here except for SPRO_REG_IGNO 8401 * This must be done for all other service actions 8402 */ 8403 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8404 mtx_lock(&lun->lun_lock); 8405 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8406 if (res_key != key) { 8407 /* 8408 * The current key passed in doesn't match 8409 * the one the initiator previously 8410 * registered. 8411 */ 8412 mtx_unlock(&lun->lun_lock); 8413 free(ctsio->kern_data_ptr, M_CTL); 8414 ctl_set_reservation_conflict(ctsio); 8415 ctl_done((union ctl_io *)ctsio); 8416 return (CTL_RETVAL_COMPLETE); 8417 } 8418 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8419 /* 8420 * We are not registered 8421 */ 8422 mtx_unlock(&lun->lun_lock); 8423 free(ctsio->kern_data_ptr, M_CTL); 8424 ctl_set_reservation_conflict(ctsio); 8425 ctl_done((union ctl_io *)ctsio); 8426 return (CTL_RETVAL_COMPLETE); 8427 } else if (res_key != 0) { 8428 /* 8429 * We are not registered and trying to register but 8430 * the register key isn't zero. 8431 */ 8432 mtx_unlock(&lun->lun_lock); 8433 free(ctsio->kern_data_ptr, M_CTL); 8434 ctl_set_reservation_conflict(ctsio); 8435 ctl_done((union ctl_io *)ctsio); 8436 return (CTL_RETVAL_COMPLETE); 8437 } 8438 mtx_unlock(&lun->lun_lock); 8439 } 8440 8441 switch (cdb->action & SPRO_ACTION_MASK) { 8442 case SPRO_REGISTER: 8443 case SPRO_REG_IGNO: { 8444 8445#if 0 8446 printf("Registration received\n"); 8447#endif 8448 8449 /* 8450 * We don't support any of these options, as we report in 8451 * the read capabilities request (see 8452 * ctl_persistent_reserve_in(), above). 8453 */ 8454 if ((param->flags & SPR_SPEC_I_PT) 8455 || (param->flags & SPR_ALL_TG_PT) 8456 || (param->flags & SPR_APTPL)) { 8457 int bit_ptr; 8458 8459 if (param->flags & SPR_APTPL) 8460 bit_ptr = 0; 8461 else if (param->flags & SPR_ALL_TG_PT) 8462 bit_ptr = 2; 8463 else /* SPR_SPEC_I_PT */ 8464 bit_ptr = 3; 8465 8466 free(ctsio->kern_data_ptr, M_CTL); 8467 ctl_set_invalid_field(ctsio, 8468 /*sks_valid*/ 1, 8469 /*command*/ 0, 8470 /*field*/ 20, 8471 /*bit_valid*/ 1, 8472 /*bit*/ bit_ptr); 8473 ctl_done((union ctl_io *)ctsio); 8474 return (CTL_RETVAL_COMPLETE); 8475 } 8476 8477 mtx_lock(&lun->lun_lock); 8478 8479 /* 8480 * The initiator wants to clear the 8481 * key/unregister. 8482 */ 8483 if (sa_res_key == 0) { 8484 if ((res_key == 0 8485 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8486 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8487 && ctl_get_prkey(lun, residx) == 0)) { 8488 mtx_unlock(&lun->lun_lock); 8489 goto done; 8490 } 8491 8492 ctl_clr_prkey(lun, residx); 8493 lun->pr_key_count--; 8494 8495 if (residx == lun->pr_res_idx) { 8496 lun->flags &= ~CTL_LUN_PR_RESERVED; 8497 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8498 8499 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8500 || lun->res_type == SPR_TYPE_EX_AC_RO) 8501 && lun->pr_key_count) { 8502 /* 8503 * If the reservation is a registrants 8504 * only type we need to generate a UA 8505 * for other registered inits. The 8506 * sense code should be RESERVATIONS 8507 * RELEASED 8508 */ 8509 8510 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8511 if (ctl_get_prkey(lun, i + 8512 softc->persis_offset) == 0) 8513 continue; 8514 ctl_est_ua(lun, i, 8515 CTL_UA_RES_RELEASE); 8516 } 8517 } 8518 lun->res_type = 0; 8519 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8520 if (lun->pr_key_count==0) { 8521 lun->flags &= ~CTL_LUN_PR_RESERVED; 8522 lun->res_type = 0; 8523 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8524 } 8525 } 8526 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8527 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8528 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8529 persis_io.pr.pr_info.residx = residx; 8530 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8531 &persis_io, sizeof(persis_io), 0 )) > 8532 CTL_HA_STATUS_SUCCESS) { 8533 printf("CTL:Persis Out error returned from " 8534 "ctl_ha_msg_send %d\n", isc_retval); 8535 } 8536 } else /* sa_res_key != 0 */ { 8537 8538 /* 8539 * If we aren't registered currently then increment 8540 * the key count and set the registered flag. 8541 */ 8542 ctl_alloc_prkey(lun, residx); 8543 if (ctl_get_prkey(lun, residx) == 0) 8544 lun->pr_key_count++; 8545 ctl_set_prkey(lun, residx, sa_res_key); 8546 8547 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8548 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8549 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8550 persis_io.pr.pr_info.residx = residx; 8551 memcpy(persis_io.pr.pr_info.sa_res_key, 8552 param->serv_act_res_key, 8553 sizeof(param->serv_act_res_key)); 8554 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8555 &persis_io, sizeof(persis_io), 0)) > 8556 CTL_HA_STATUS_SUCCESS) { 8557 printf("CTL:Persis Out error returned from " 8558 "ctl_ha_msg_send %d\n", isc_retval); 8559 } 8560 } 8561 lun->PRGeneration++; 8562 mtx_unlock(&lun->lun_lock); 8563 8564 break; 8565 } 8566 case SPRO_RESERVE: 8567#if 0 8568 printf("Reserve executed type %d\n", type); 8569#endif 8570 mtx_lock(&lun->lun_lock); 8571 if (lun->flags & CTL_LUN_PR_RESERVED) { 8572 /* 8573 * if this isn't the reservation holder and it's 8574 * not a "all registrants" type or if the type is 8575 * different then we have a conflict 8576 */ 8577 if ((lun->pr_res_idx != residx 8578 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8579 || lun->res_type != type) { 8580 mtx_unlock(&lun->lun_lock); 8581 free(ctsio->kern_data_ptr, M_CTL); 8582 ctl_set_reservation_conflict(ctsio); 8583 ctl_done((union ctl_io *)ctsio); 8584 return (CTL_RETVAL_COMPLETE); 8585 } 8586 mtx_unlock(&lun->lun_lock); 8587 } else /* create a reservation */ { 8588 /* 8589 * If it's not an "all registrants" type record 8590 * reservation holder 8591 */ 8592 if (type != SPR_TYPE_WR_EX_AR 8593 && type != SPR_TYPE_EX_AC_AR) 8594 lun->pr_res_idx = residx; /* Res holder */ 8595 else 8596 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8597 8598 lun->flags |= CTL_LUN_PR_RESERVED; 8599 lun->res_type = type; 8600 8601 mtx_unlock(&lun->lun_lock); 8602 8603 /* send msg to other side */ 8604 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8605 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8606 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8607 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8608 persis_io.pr.pr_info.res_type = type; 8609 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8610 &persis_io, sizeof(persis_io), 0)) > 8611 CTL_HA_STATUS_SUCCESS) { 8612 printf("CTL:Persis Out error returned from " 8613 "ctl_ha_msg_send %d\n", isc_retval); 8614 } 8615 } 8616 break; 8617 8618 case SPRO_RELEASE: 8619 mtx_lock(&lun->lun_lock); 8620 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8621 /* No reservation exists return good status */ 8622 mtx_unlock(&lun->lun_lock); 8623 goto done; 8624 } 8625 /* 8626 * Is this nexus a reservation holder? 8627 */ 8628 if (lun->pr_res_idx != residx 8629 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8630 /* 8631 * not a res holder return good status but 8632 * do nothing 8633 */ 8634 mtx_unlock(&lun->lun_lock); 8635 goto done; 8636 } 8637 8638 if (lun->res_type != type) { 8639 mtx_unlock(&lun->lun_lock); 8640 free(ctsio->kern_data_ptr, M_CTL); 8641 ctl_set_illegal_pr_release(ctsio); 8642 ctl_done((union ctl_io *)ctsio); 8643 return (CTL_RETVAL_COMPLETE); 8644 } 8645 8646 /* okay to release */ 8647 lun->flags &= ~CTL_LUN_PR_RESERVED; 8648 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8649 lun->res_type = 0; 8650 8651 /* 8652 * if this isn't an exclusive access 8653 * res generate UA for all other 8654 * registrants. 8655 */ 8656 if (type != SPR_TYPE_EX_AC 8657 && type != SPR_TYPE_WR_EX) { 8658 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8659 if (i == residx || 8660 ctl_get_prkey(lun, 8661 i + softc->persis_offset) == 0) 8662 continue; 8663 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8664 } 8665 } 8666 mtx_unlock(&lun->lun_lock); 8667 /* Send msg to other side */ 8668 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8669 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8670 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8671 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8672 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8673 printf("CTL:Persis Out error returned from " 8674 "ctl_ha_msg_send %d\n", isc_retval); 8675 } 8676 break; 8677 8678 case SPRO_CLEAR: 8679 /* send msg to other side */ 8680 8681 mtx_lock(&lun->lun_lock); 8682 lun->flags &= ~CTL_LUN_PR_RESERVED; 8683 lun->res_type = 0; 8684 lun->pr_key_count = 0; 8685 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8686 8687 ctl_clr_prkey(lun, residx); 8688 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8689 if (ctl_get_prkey(lun, i) != 0) { 8690 ctl_clr_prkey(lun, i); 8691 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8692 } 8693 lun->PRGeneration++; 8694 mtx_unlock(&lun->lun_lock); 8695 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8696 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8697 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8698 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8699 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8700 printf("CTL:Persis Out error returned from " 8701 "ctl_ha_msg_send %d\n", isc_retval); 8702 } 8703 break; 8704 8705 case SPRO_PREEMPT: 8706 case SPRO_PRE_ABO: { 8707 int nretval; 8708 8709 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8710 residx, ctsio, cdb, param); 8711 if (nretval != 0) 8712 return (CTL_RETVAL_COMPLETE); 8713 break; 8714 } 8715 default: 8716 panic("Invalid PR type %x", cdb->action); 8717 } 8718 8719done: 8720 free(ctsio->kern_data_ptr, M_CTL); 8721 ctl_set_success(ctsio); 8722 ctl_done((union ctl_io *)ctsio); 8723 8724 return (retval); 8725} 8726 8727/* 8728 * This routine is for handling a message from the other SC pertaining to 8729 * persistent reserve out. All the error checking will have been done 8730 * so only perorming the action need be done here to keep the two 8731 * in sync. 8732 */ 8733static void 8734ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8735{ 8736 struct ctl_lun *lun; 8737 struct ctl_softc *softc; 8738 int i; 8739 uint32_t targ_lun; 8740 8741 softc = control_softc; 8742 8743 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8744 lun = softc->ctl_luns[targ_lun]; 8745 mtx_lock(&lun->lun_lock); 8746 switch(msg->pr.pr_info.action) { 8747 case CTL_PR_REG_KEY: 8748 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8749 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8750 lun->pr_key_count++; 8751 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8752 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8753 lun->PRGeneration++; 8754 break; 8755 8756 case CTL_PR_UNREG_KEY: 8757 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8758 lun->pr_key_count--; 8759 8760 /* XXX Need to see if the reservation has been released */ 8761 /* if so do we need to generate UA? */ 8762 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8763 lun->flags &= ~CTL_LUN_PR_RESERVED; 8764 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8765 8766 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8767 || lun->res_type == SPR_TYPE_EX_AC_RO) 8768 && lun->pr_key_count) { 8769 /* 8770 * If the reservation is a registrants 8771 * only type we need to generate a UA 8772 * for other registered inits. The 8773 * sense code should be RESERVATIONS 8774 * RELEASED 8775 */ 8776 8777 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8778 if (ctl_get_prkey(lun, i + 8779 softc->persis_offset) == 0) 8780 continue; 8781 8782 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8783 } 8784 } 8785 lun->res_type = 0; 8786 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8787 if (lun->pr_key_count==0) { 8788 lun->flags &= ~CTL_LUN_PR_RESERVED; 8789 lun->res_type = 0; 8790 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8791 } 8792 } 8793 lun->PRGeneration++; 8794 break; 8795 8796 case CTL_PR_RESERVE: 8797 lun->flags |= CTL_LUN_PR_RESERVED; 8798 lun->res_type = msg->pr.pr_info.res_type; 8799 lun->pr_res_idx = msg->pr.pr_info.residx; 8800 8801 break; 8802 8803 case CTL_PR_RELEASE: 8804 /* 8805 * if this isn't an exclusive access res generate UA for all 8806 * other registrants. 8807 */ 8808 if (lun->res_type != SPR_TYPE_EX_AC 8809 && lun->res_type != SPR_TYPE_WR_EX) { 8810 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8811 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8812 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8813 } 8814 8815 lun->flags &= ~CTL_LUN_PR_RESERVED; 8816 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8817 lun->res_type = 0; 8818 break; 8819 8820 case CTL_PR_PREEMPT: 8821 ctl_pro_preempt_other(lun, msg); 8822 break; 8823 case CTL_PR_CLEAR: 8824 lun->flags &= ~CTL_LUN_PR_RESERVED; 8825 lun->res_type = 0; 8826 lun->pr_key_count = 0; 8827 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8828 8829 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8830 if (ctl_get_prkey(lun, i) == 0) 8831 continue; 8832 ctl_clr_prkey(lun, i); 8833 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8834 } 8835 lun->PRGeneration++; 8836 break; 8837 } 8838 8839 mtx_unlock(&lun->lun_lock); 8840} 8841 8842int 8843ctl_read_write(struct ctl_scsiio *ctsio) 8844{ 8845 struct ctl_lun *lun; 8846 struct ctl_lba_len_flags *lbalen; 8847 uint64_t lba; 8848 uint32_t num_blocks; 8849 int flags, retval; 8850 int isread; 8851 8852 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8853 8854 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8855 8856 flags = 0; 8857 retval = CTL_RETVAL_COMPLETE; 8858 8859 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8860 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8861 switch (ctsio->cdb[0]) { 8862 case READ_6: 8863 case WRITE_6: { 8864 struct scsi_rw_6 *cdb; 8865 8866 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8867 8868 lba = scsi_3btoul(cdb->addr); 8869 /* only 5 bits are valid in the most significant address byte */ 8870 lba &= 0x1fffff; 8871 num_blocks = cdb->length; 8872 /* 8873 * This is correct according to SBC-2. 8874 */ 8875 if (num_blocks == 0) 8876 num_blocks = 256; 8877 break; 8878 } 8879 case READ_10: 8880 case WRITE_10: { 8881 struct scsi_rw_10 *cdb; 8882 8883 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8884 if (cdb->byte2 & SRW10_FUA) 8885 flags |= CTL_LLF_FUA; 8886 if (cdb->byte2 & SRW10_DPO) 8887 flags |= CTL_LLF_DPO; 8888 lba = scsi_4btoul(cdb->addr); 8889 num_blocks = scsi_2btoul(cdb->length); 8890 break; 8891 } 8892 case WRITE_VERIFY_10: { 8893 struct scsi_write_verify_10 *cdb; 8894 8895 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8896 flags |= CTL_LLF_FUA; 8897 if (cdb->byte2 & SWV_DPO) 8898 flags |= CTL_LLF_DPO; 8899 lba = scsi_4btoul(cdb->addr); 8900 num_blocks = scsi_2btoul(cdb->length); 8901 break; 8902 } 8903 case READ_12: 8904 case WRITE_12: { 8905 struct scsi_rw_12 *cdb; 8906 8907 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8908 if (cdb->byte2 & SRW12_FUA) 8909 flags |= CTL_LLF_FUA; 8910 if (cdb->byte2 & SRW12_DPO) 8911 flags |= CTL_LLF_DPO; 8912 lba = scsi_4btoul(cdb->addr); 8913 num_blocks = scsi_4btoul(cdb->length); 8914 break; 8915 } 8916 case WRITE_VERIFY_12: { 8917 struct scsi_write_verify_12 *cdb; 8918 8919 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8920 flags |= CTL_LLF_FUA; 8921 if (cdb->byte2 & SWV_DPO) 8922 flags |= CTL_LLF_DPO; 8923 lba = scsi_4btoul(cdb->addr); 8924 num_blocks = scsi_4btoul(cdb->length); 8925 break; 8926 } 8927 case READ_16: 8928 case WRITE_16: { 8929 struct scsi_rw_16 *cdb; 8930 8931 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8932 if (cdb->byte2 & SRW12_FUA) 8933 flags |= CTL_LLF_FUA; 8934 if (cdb->byte2 & SRW12_DPO) 8935 flags |= CTL_LLF_DPO; 8936 lba = scsi_8btou64(cdb->addr); 8937 num_blocks = scsi_4btoul(cdb->length); 8938 break; 8939 } 8940 case WRITE_ATOMIC_16: { 8941 struct scsi_rw_16 *cdb; 8942 8943 if (lun->be_lun->atomicblock == 0) { 8944 ctl_set_invalid_opcode(ctsio); 8945 ctl_done((union ctl_io *)ctsio); 8946 return (CTL_RETVAL_COMPLETE); 8947 } 8948 8949 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8950 if (cdb->byte2 & SRW12_FUA) 8951 flags |= CTL_LLF_FUA; 8952 if (cdb->byte2 & SRW12_DPO) 8953 flags |= CTL_LLF_DPO; 8954 lba = scsi_8btou64(cdb->addr); 8955 num_blocks = scsi_4btoul(cdb->length); 8956 if (num_blocks > lun->be_lun->atomicblock) { 8957 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8958 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8959 /*bit*/ 0); 8960 ctl_done((union ctl_io *)ctsio); 8961 return (CTL_RETVAL_COMPLETE); 8962 } 8963 break; 8964 } 8965 case WRITE_VERIFY_16: { 8966 struct scsi_write_verify_16 *cdb; 8967 8968 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8969 flags |= CTL_LLF_FUA; 8970 if (cdb->byte2 & SWV_DPO) 8971 flags |= CTL_LLF_DPO; 8972 lba = scsi_8btou64(cdb->addr); 8973 num_blocks = scsi_4btoul(cdb->length); 8974 break; 8975 } 8976 default: 8977 /* 8978 * We got a command we don't support. This shouldn't 8979 * happen, commands should be filtered out above us. 8980 */ 8981 ctl_set_invalid_opcode(ctsio); 8982 ctl_done((union ctl_io *)ctsio); 8983 8984 return (CTL_RETVAL_COMPLETE); 8985 break; /* NOTREACHED */ 8986 } 8987 8988 /* 8989 * The first check is to make sure we're in bounds, the second 8990 * check is to catch wrap-around problems. If the lba + num blocks 8991 * is less than the lba, then we've wrapped around and the block 8992 * range is invalid anyway. 8993 */ 8994 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8995 || ((lba + num_blocks) < lba)) { 8996 ctl_set_lba_out_of_range(ctsio); 8997 ctl_done((union ctl_io *)ctsio); 8998 return (CTL_RETVAL_COMPLETE); 8999 } 9000 9001 /* 9002 * According to SBC-3, a transfer length of 0 is not an error. 9003 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9004 * translates to 256 blocks for those commands. 9005 */ 9006 if (num_blocks == 0) { 9007 ctl_set_success(ctsio); 9008 ctl_done((union ctl_io *)ctsio); 9009 return (CTL_RETVAL_COMPLETE); 9010 } 9011 9012 /* Set FUA and/or DPO if caches are disabled. */ 9013 if (isread) { 9014 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9015 SCP_RCD) != 0) 9016 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9017 } else { 9018 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9019 SCP_WCE) == 0) 9020 flags |= CTL_LLF_FUA; 9021 } 9022 9023 lbalen = (struct ctl_lba_len_flags *) 9024 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9025 lbalen->lba = lba; 9026 lbalen->len = num_blocks; 9027 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9028 9029 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9030 ctsio->kern_rel_offset = 0; 9031 9032 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9033 9034 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9035 9036 return (retval); 9037} 9038 9039static int 9040ctl_cnw_cont(union ctl_io *io) 9041{ 9042 struct ctl_scsiio *ctsio; 9043 struct ctl_lun *lun; 9044 struct ctl_lba_len_flags *lbalen; 9045 int retval; 9046 9047 ctsio = &io->scsiio; 9048 ctsio->io_hdr.status = CTL_STATUS_NONE; 9049 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9050 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9051 lbalen = (struct ctl_lba_len_flags *) 9052 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9053 lbalen->flags &= ~CTL_LLF_COMPARE; 9054 lbalen->flags |= CTL_LLF_WRITE; 9055 9056 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9057 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9058 return (retval); 9059} 9060 9061int 9062ctl_cnw(struct ctl_scsiio *ctsio) 9063{ 9064 struct ctl_lun *lun; 9065 struct ctl_lba_len_flags *lbalen; 9066 uint64_t lba; 9067 uint32_t num_blocks; 9068 int flags, retval; 9069 9070 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9071 9072 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9073 9074 flags = 0; 9075 retval = CTL_RETVAL_COMPLETE; 9076 9077 switch (ctsio->cdb[0]) { 9078 case COMPARE_AND_WRITE: { 9079 struct scsi_compare_and_write *cdb; 9080 9081 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9082 if (cdb->byte2 & SRW10_FUA) 9083 flags |= CTL_LLF_FUA; 9084 if (cdb->byte2 & SRW10_DPO) 9085 flags |= CTL_LLF_DPO; 9086 lba = scsi_8btou64(cdb->addr); 9087 num_blocks = cdb->length; 9088 break; 9089 } 9090 default: 9091 /* 9092 * We got a command we don't support. This shouldn't 9093 * happen, commands should be filtered out above us. 9094 */ 9095 ctl_set_invalid_opcode(ctsio); 9096 ctl_done((union ctl_io *)ctsio); 9097 9098 return (CTL_RETVAL_COMPLETE); 9099 break; /* NOTREACHED */ 9100 } 9101 9102 /* 9103 * The first check is to make sure we're in bounds, the second 9104 * check is to catch wrap-around problems. If the lba + num blocks 9105 * is less than the lba, then we've wrapped around and the block 9106 * range is invalid anyway. 9107 */ 9108 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9109 || ((lba + num_blocks) < lba)) { 9110 ctl_set_lba_out_of_range(ctsio); 9111 ctl_done((union ctl_io *)ctsio); 9112 return (CTL_RETVAL_COMPLETE); 9113 } 9114 9115 /* 9116 * According to SBC-3, a transfer length of 0 is not an error. 9117 */ 9118 if (num_blocks == 0) { 9119 ctl_set_success(ctsio); 9120 ctl_done((union ctl_io *)ctsio); 9121 return (CTL_RETVAL_COMPLETE); 9122 } 9123 9124 /* Set FUA if write cache is disabled. */ 9125 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9126 SCP_WCE) == 0) 9127 flags |= CTL_LLF_FUA; 9128 9129 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9130 ctsio->kern_rel_offset = 0; 9131 9132 /* 9133 * Set the IO_CONT flag, so that if this I/O gets passed to 9134 * ctl_data_submit_done(), it'll get passed back to 9135 * ctl_ctl_cnw_cont() for further processing. 9136 */ 9137 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9138 ctsio->io_cont = ctl_cnw_cont; 9139 9140 lbalen = (struct ctl_lba_len_flags *) 9141 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9142 lbalen->lba = lba; 9143 lbalen->len = num_blocks; 9144 lbalen->flags = CTL_LLF_COMPARE | flags; 9145 9146 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9147 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9148 return (retval); 9149} 9150 9151int 9152ctl_verify(struct ctl_scsiio *ctsio) 9153{ 9154 struct ctl_lun *lun; 9155 struct ctl_lba_len_flags *lbalen; 9156 uint64_t lba; 9157 uint32_t num_blocks; 9158 int bytchk, flags; 9159 int retval; 9160 9161 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9162 9163 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9164 9165 bytchk = 0; 9166 flags = CTL_LLF_FUA; 9167 retval = CTL_RETVAL_COMPLETE; 9168 9169 switch (ctsio->cdb[0]) { 9170 case VERIFY_10: { 9171 struct scsi_verify_10 *cdb; 9172 9173 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9174 if (cdb->byte2 & SVFY_BYTCHK) 9175 bytchk = 1; 9176 if (cdb->byte2 & SVFY_DPO) 9177 flags |= CTL_LLF_DPO; 9178 lba = scsi_4btoul(cdb->addr); 9179 num_blocks = scsi_2btoul(cdb->length); 9180 break; 9181 } 9182 case VERIFY_12: { 9183 struct scsi_verify_12 *cdb; 9184 9185 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9186 if (cdb->byte2 & SVFY_BYTCHK) 9187 bytchk = 1; 9188 if (cdb->byte2 & SVFY_DPO) 9189 flags |= CTL_LLF_DPO; 9190 lba = scsi_4btoul(cdb->addr); 9191 num_blocks = scsi_4btoul(cdb->length); 9192 break; 9193 } 9194 case VERIFY_16: { 9195 struct scsi_rw_16 *cdb; 9196 9197 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9198 if (cdb->byte2 & SVFY_BYTCHK) 9199 bytchk = 1; 9200 if (cdb->byte2 & SVFY_DPO) 9201 flags |= CTL_LLF_DPO; 9202 lba = scsi_8btou64(cdb->addr); 9203 num_blocks = scsi_4btoul(cdb->length); 9204 break; 9205 } 9206 default: 9207 /* 9208 * We got a command we don't support. This shouldn't 9209 * happen, commands should be filtered out above us. 9210 */ 9211 ctl_set_invalid_opcode(ctsio); 9212 ctl_done((union ctl_io *)ctsio); 9213 return (CTL_RETVAL_COMPLETE); 9214 } 9215 9216 /* 9217 * The first check is to make sure we're in bounds, the second 9218 * check is to catch wrap-around problems. If the lba + num blocks 9219 * is less than the lba, then we've wrapped around and the block 9220 * range is invalid anyway. 9221 */ 9222 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9223 || ((lba + num_blocks) < lba)) { 9224 ctl_set_lba_out_of_range(ctsio); 9225 ctl_done((union ctl_io *)ctsio); 9226 return (CTL_RETVAL_COMPLETE); 9227 } 9228 9229 /* 9230 * According to SBC-3, a transfer length of 0 is not an error. 9231 */ 9232 if (num_blocks == 0) { 9233 ctl_set_success(ctsio); 9234 ctl_done((union ctl_io *)ctsio); 9235 return (CTL_RETVAL_COMPLETE); 9236 } 9237 9238 lbalen = (struct ctl_lba_len_flags *) 9239 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9240 lbalen->lba = lba; 9241 lbalen->len = num_blocks; 9242 if (bytchk) { 9243 lbalen->flags = CTL_LLF_COMPARE | flags; 9244 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9245 } else { 9246 lbalen->flags = CTL_LLF_VERIFY | flags; 9247 ctsio->kern_total_len = 0; 9248 } 9249 ctsio->kern_rel_offset = 0; 9250 9251 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9252 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9253 return (retval); 9254} 9255 9256int 9257ctl_report_luns(struct ctl_scsiio *ctsio) 9258{ 9259 struct ctl_softc *softc = control_softc; 9260 struct scsi_report_luns *cdb; 9261 struct scsi_report_luns_data *lun_data; 9262 struct ctl_lun *lun, *request_lun; 9263 int num_luns, retval; 9264 uint32_t alloc_len, lun_datalen; 9265 int num_filled, well_known; 9266 uint32_t initidx, targ_lun_id, lun_id; 9267 9268 retval = CTL_RETVAL_COMPLETE; 9269 well_known = 0; 9270 9271 cdb = (struct scsi_report_luns *)ctsio->cdb; 9272 9273 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9274 9275 mtx_lock(&softc->ctl_lock); 9276 num_luns = softc->num_luns; 9277 mtx_unlock(&softc->ctl_lock); 9278 9279 switch (cdb->select_report) { 9280 case RPL_REPORT_DEFAULT: 9281 case RPL_REPORT_ALL: 9282 break; 9283 case RPL_REPORT_WELLKNOWN: 9284 well_known = 1; 9285 num_luns = 0; 9286 break; 9287 default: 9288 ctl_set_invalid_field(ctsio, 9289 /*sks_valid*/ 1, 9290 /*command*/ 1, 9291 /*field*/ 2, 9292 /*bit_valid*/ 0, 9293 /*bit*/ 0); 9294 ctl_done((union ctl_io *)ctsio); 9295 return (retval); 9296 break; /* NOTREACHED */ 9297 } 9298 9299 alloc_len = scsi_4btoul(cdb->length); 9300 /* 9301 * The initiator has to allocate at least 16 bytes for this request, 9302 * so he can at least get the header and the first LUN. Otherwise 9303 * we reject the request (per SPC-3 rev 14, section 6.21). 9304 */ 9305 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9306 sizeof(struct scsi_report_luns_lundata))) { 9307 ctl_set_invalid_field(ctsio, 9308 /*sks_valid*/ 1, 9309 /*command*/ 1, 9310 /*field*/ 6, 9311 /*bit_valid*/ 0, 9312 /*bit*/ 0); 9313 ctl_done((union ctl_io *)ctsio); 9314 return (retval); 9315 } 9316 9317 request_lun = (struct ctl_lun *) 9318 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9319 9320 lun_datalen = sizeof(*lun_data) + 9321 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9322 9323 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9324 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9325 ctsio->kern_sg_entries = 0; 9326 9327 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9328 9329 mtx_lock(&softc->ctl_lock); 9330 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9331 lun_id = ctl_map_lun(softc, ctsio->io_hdr.nexus.targ_port, 9332 targ_lun_id); 9333 if (lun_id >= CTL_MAX_LUNS) 9334 continue; 9335 lun = softc->ctl_luns[lun_id]; 9336 if (lun == NULL) 9337 continue; 9338 9339 if (targ_lun_id <= 0xff) { 9340 /* 9341 * Peripheral addressing method, bus number 0. 9342 */ 9343 lun_data->luns[num_filled].lundata[0] = 9344 RPL_LUNDATA_ATYP_PERIPH; 9345 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9346 num_filled++; 9347 } else if (targ_lun_id <= 0x3fff) { 9348 /* 9349 * Flat addressing method. 9350 */ 9351 lun_data->luns[num_filled].lundata[0] = 9352 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9353 lun_data->luns[num_filled].lundata[1] = 9354 (targ_lun_id & 0xff); 9355 num_filled++; 9356 } else if (targ_lun_id <= 0xffffff) { 9357 /* 9358 * Extended flat addressing method. 9359 */ 9360 lun_data->luns[num_filled].lundata[0] = 9361 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9362 scsi_ulto3b(targ_lun_id, 9363 &lun_data->luns[num_filled].lundata[1]); 9364 num_filled++; 9365 } else { 9366 printf("ctl_report_luns: bogus LUN number %jd, " 9367 "skipping\n", (intmax_t)targ_lun_id); 9368 } 9369 /* 9370 * According to SPC-3, rev 14 section 6.21: 9371 * 9372 * "The execution of a REPORT LUNS command to any valid and 9373 * installed logical unit shall clear the REPORTED LUNS DATA 9374 * HAS CHANGED unit attention condition for all logical 9375 * units of that target with respect to the requesting 9376 * initiator. A valid and installed logical unit is one 9377 * having a PERIPHERAL QUALIFIER of 000b in the standard 9378 * INQUIRY data (see 6.4.2)." 9379 * 9380 * If request_lun is NULL, the LUN this report luns command 9381 * was issued to is either disabled or doesn't exist. In that 9382 * case, we shouldn't clear any pending lun change unit 9383 * attention. 9384 */ 9385 if (request_lun != NULL) { 9386 mtx_lock(&lun->lun_lock); 9387 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9388 mtx_unlock(&lun->lun_lock); 9389 } 9390 } 9391 mtx_unlock(&softc->ctl_lock); 9392 9393 /* 9394 * It's quite possible that we've returned fewer LUNs than we allocated 9395 * space for. Trim it. 9396 */ 9397 lun_datalen = sizeof(*lun_data) + 9398 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9399 9400 if (lun_datalen < alloc_len) { 9401 ctsio->residual = alloc_len - lun_datalen; 9402 ctsio->kern_data_len = lun_datalen; 9403 ctsio->kern_total_len = lun_datalen; 9404 } else { 9405 ctsio->residual = 0; 9406 ctsio->kern_data_len = alloc_len; 9407 ctsio->kern_total_len = alloc_len; 9408 } 9409 ctsio->kern_data_resid = 0; 9410 ctsio->kern_rel_offset = 0; 9411 ctsio->kern_sg_entries = 0; 9412 9413 /* 9414 * We set this to the actual data length, regardless of how much 9415 * space we actually have to return results. If the user looks at 9416 * this value, he'll know whether or not he allocated enough space 9417 * and reissue the command if necessary. We don't support well 9418 * known logical units, so if the user asks for that, return none. 9419 */ 9420 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9421 9422 /* 9423 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9424 * this request. 9425 */ 9426 ctl_set_success(ctsio); 9427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9428 ctsio->be_move_done = ctl_config_move_done; 9429 ctl_datamove((union ctl_io *)ctsio); 9430 return (retval); 9431} 9432 9433int 9434ctl_request_sense(struct ctl_scsiio *ctsio) 9435{ 9436 struct scsi_request_sense *cdb; 9437 struct scsi_sense_data *sense_ptr; 9438 struct ctl_lun *lun; 9439 uint32_t initidx; 9440 int have_error; 9441 scsi_sense_data_type sense_format; 9442 ctl_ua_type ua_type; 9443 9444 cdb = (struct scsi_request_sense *)ctsio->cdb; 9445 9446 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9447 9448 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9449 9450 /* 9451 * Determine which sense format the user wants. 9452 */ 9453 if (cdb->byte2 & SRS_DESC) 9454 sense_format = SSD_TYPE_DESC; 9455 else 9456 sense_format = SSD_TYPE_FIXED; 9457 9458 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9459 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9460 ctsio->kern_sg_entries = 0; 9461 9462 /* 9463 * struct scsi_sense_data, which is currently set to 256 bytes, is 9464 * larger than the largest allowed value for the length field in the 9465 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9466 */ 9467 ctsio->residual = 0; 9468 ctsio->kern_data_len = cdb->length; 9469 ctsio->kern_total_len = cdb->length; 9470 9471 ctsio->kern_data_resid = 0; 9472 ctsio->kern_rel_offset = 0; 9473 ctsio->kern_sg_entries = 0; 9474 9475 /* 9476 * If we don't have a LUN, we don't have any pending sense. 9477 */ 9478 if (lun == NULL) 9479 goto no_sense; 9480 9481 have_error = 0; 9482 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9483 /* 9484 * Check for pending sense, and then for pending unit attentions. 9485 * Pending sense gets returned first, then pending unit attentions. 9486 */ 9487 mtx_lock(&lun->lun_lock); 9488#ifdef CTL_WITH_CA 9489 if (ctl_is_set(lun->have_ca, initidx)) { 9490 scsi_sense_data_type stored_format; 9491 9492 /* 9493 * Check to see which sense format was used for the stored 9494 * sense data. 9495 */ 9496 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9497 9498 /* 9499 * If the user requested a different sense format than the 9500 * one we stored, then we need to convert it to the other 9501 * format. If we're going from descriptor to fixed format 9502 * sense data, we may lose things in translation, depending 9503 * on what options were used. 9504 * 9505 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9506 * for some reason we'll just copy it out as-is. 9507 */ 9508 if ((stored_format == SSD_TYPE_FIXED) 9509 && (sense_format == SSD_TYPE_DESC)) 9510 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9511 &lun->pending_sense[initidx], 9512 (struct scsi_sense_data_desc *)sense_ptr); 9513 else if ((stored_format == SSD_TYPE_DESC) 9514 && (sense_format == SSD_TYPE_FIXED)) 9515 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9516 &lun->pending_sense[initidx], 9517 (struct scsi_sense_data_fixed *)sense_ptr); 9518 else 9519 memcpy(sense_ptr, &lun->pending_sense[initidx], 9520 MIN(sizeof(*sense_ptr), 9521 sizeof(lun->pending_sense[initidx]))); 9522 9523 ctl_clear_mask(lun->have_ca, initidx); 9524 have_error = 1; 9525 } else 9526#endif 9527 { 9528 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9529 if (ua_type != CTL_UA_NONE) 9530 have_error = 1; 9531 } 9532 mtx_unlock(&lun->lun_lock); 9533 9534 /* 9535 * We already have a pending error, return it. 9536 */ 9537 if (have_error != 0) { 9538 /* 9539 * We report the SCSI status as OK, since the status of the 9540 * request sense command itself is OK. 9541 * We report 0 for the sense length, because we aren't doing 9542 * autosense in this case. We're reporting sense as 9543 * parameter data. 9544 */ 9545 ctl_set_success(ctsio); 9546 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9547 ctsio->be_move_done = ctl_config_move_done; 9548 ctl_datamove((union ctl_io *)ctsio); 9549 return (CTL_RETVAL_COMPLETE); 9550 } 9551 9552no_sense: 9553 9554 /* 9555 * No sense information to report, so we report that everything is 9556 * okay. 9557 */ 9558 ctl_set_sense_data(sense_ptr, 9559 lun, 9560 sense_format, 9561 /*current_error*/ 1, 9562 /*sense_key*/ SSD_KEY_NO_SENSE, 9563 /*asc*/ 0x00, 9564 /*ascq*/ 0x00, 9565 SSD_ELEM_NONE); 9566 9567 /* 9568 * We report 0 for the sense length, because we aren't doing 9569 * autosense in this case. We're reporting sense as parameter data. 9570 */ 9571 ctl_set_success(ctsio); 9572 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9573 ctsio->be_move_done = ctl_config_move_done; 9574 ctl_datamove((union ctl_io *)ctsio); 9575 return (CTL_RETVAL_COMPLETE); 9576} 9577 9578int 9579ctl_tur(struct ctl_scsiio *ctsio) 9580{ 9581 9582 CTL_DEBUG_PRINT(("ctl_tur\n")); 9583 9584 ctl_set_success(ctsio); 9585 ctl_done((union ctl_io *)ctsio); 9586 9587 return (CTL_RETVAL_COMPLETE); 9588} 9589 9590#ifdef notyet 9591static int 9592ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9593{ 9594 9595} 9596#endif 9597 9598static int 9599ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9600{ 9601 struct scsi_vpd_supported_pages *pages; 9602 int sup_page_size; 9603 struct ctl_lun *lun; 9604 9605 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9606 9607 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9608 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9609 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9610 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9611 ctsio->kern_sg_entries = 0; 9612 9613 if (sup_page_size < alloc_len) { 9614 ctsio->residual = alloc_len - sup_page_size; 9615 ctsio->kern_data_len = sup_page_size; 9616 ctsio->kern_total_len = sup_page_size; 9617 } else { 9618 ctsio->residual = 0; 9619 ctsio->kern_data_len = alloc_len; 9620 ctsio->kern_total_len = alloc_len; 9621 } 9622 ctsio->kern_data_resid = 0; 9623 ctsio->kern_rel_offset = 0; 9624 ctsio->kern_sg_entries = 0; 9625 9626 /* 9627 * The control device is always connected. The disk device, on the 9628 * other hand, may not be online all the time. Need to change this 9629 * to figure out whether the disk device is actually online or not. 9630 */ 9631 if (lun != NULL) 9632 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9633 lun->be_lun->lun_type; 9634 else 9635 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9636 9637 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9638 /* Supported VPD pages */ 9639 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9640 /* Serial Number */ 9641 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9642 /* Device Identification */ 9643 pages->page_list[2] = SVPD_DEVICE_ID; 9644 /* Extended INQUIRY Data */ 9645 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9646 /* Mode Page Policy */ 9647 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9648 /* SCSI Ports */ 9649 pages->page_list[5] = SVPD_SCSI_PORTS; 9650 /* Third-party Copy */ 9651 pages->page_list[6] = SVPD_SCSI_TPC; 9652 /* Block limits */ 9653 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9654 /* Block Device Characteristics */ 9655 pages->page_list[8] = SVPD_BDC; 9656 /* Logical Block Provisioning */ 9657 pages->page_list[9] = SVPD_LBP; 9658 9659 ctl_set_success(ctsio); 9660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9661 ctsio->be_move_done = ctl_config_move_done; 9662 ctl_datamove((union ctl_io *)ctsio); 9663 return (CTL_RETVAL_COMPLETE); 9664} 9665 9666static int 9667ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9668{ 9669 struct scsi_vpd_unit_serial_number *sn_ptr; 9670 struct ctl_lun *lun; 9671 int data_len; 9672 9673 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9674 9675 data_len = 4 + CTL_SN_LEN; 9676 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9677 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9678 if (data_len < alloc_len) { 9679 ctsio->residual = alloc_len - data_len; 9680 ctsio->kern_data_len = data_len; 9681 ctsio->kern_total_len = data_len; 9682 } else { 9683 ctsio->residual = 0; 9684 ctsio->kern_data_len = alloc_len; 9685 ctsio->kern_total_len = alloc_len; 9686 } 9687 ctsio->kern_data_resid = 0; 9688 ctsio->kern_rel_offset = 0; 9689 ctsio->kern_sg_entries = 0; 9690 9691 /* 9692 * The control device is always connected. The disk device, on the 9693 * other hand, may not be online all the time. Need to change this 9694 * to figure out whether the disk device is actually online or not. 9695 */ 9696 if (lun != NULL) 9697 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9698 lun->be_lun->lun_type; 9699 else 9700 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9701 9702 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9703 sn_ptr->length = CTL_SN_LEN; 9704 /* 9705 * If we don't have a LUN, we just leave the serial number as 9706 * all spaces. 9707 */ 9708 if (lun != NULL) { 9709 strncpy((char *)sn_ptr->serial_num, 9710 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9711 } else 9712 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9713 9714 ctl_set_success(ctsio); 9715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9716 ctsio->be_move_done = ctl_config_move_done; 9717 ctl_datamove((union ctl_io *)ctsio); 9718 return (CTL_RETVAL_COMPLETE); 9719} 9720 9721 9722static int 9723ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9724{ 9725 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9726 struct ctl_lun *lun; 9727 int data_len; 9728 9729 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9730 9731 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9732 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9733 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9734 ctsio->kern_sg_entries = 0; 9735 9736 if (data_len < alloc_len) { 9737 ctsio->residual = alloc_len - data_len; 9738 ctsio->kern_data_len = data_len; 9739 ctsio->kern_total_len = data_len; 9740 } else { 9741 ctsio->residual = 0; 9742 ctsio->kern_data_len = alloc_len; 9743 ctsio->kern_total_len = alloc_len; 9744 } 9745 ctsio->kern_data_resid = 0; 9746 ctsio->kern_rel_offset = 0; 9747 ctsio->kern_sg_entries = 0; 9748 9749 /* 9750 * The control device is always connected. The disk device, on the 9751 * other hand, may not be online all the time. 9752 */ 9753 if (lun != NULL) 9754 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9755 lun->be_lun->lun_type; 9756 else 9757 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9758 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9759 eid_ptr->page_length = data_len - 4; 9760 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9761 eid_ptr->flags3 = SVPD_EID_V_SUP; 9762 9763 ctl_set_success(ctsio); 9764 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9765 ctsio->be_move_done = ctl_config_move_done; 9766 ctl_datamove((union ctl_io *)ctsio); 9767 return (CTL_RETVAL_COMPLETE); 9768} 9769 9770static int 9771ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9772{ 9773 struct scsi_vpd_mode_page_policy *mpp_ptr; 9774 struct ctl_lun *lun; 9775 int data_len; 9776 9777 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9778 9779 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9780 sizeof(struct scsi_vpd_mode_page_policy_descr); 9781 9782 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9783 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9784 ctsio->kern_sg_entries = 0; 9785 9786 if (data_len < alloc_len) { 9787 ctsio->residual = alloc_len - data_len; 9788 ctsio->kern_data_len = data_len; 9789 ctsio->kern_total_len = data_len; 9790 } else { 9791 ctsio->residual = 0; 9792 ctsio->kern_data_len = alloc_len; 9793 ctsio->kern_total_len = alloc_len; 9794 } 9795 ctsio->kern_data_resid = 0; 9796 ctsio->kern_rel_offset = 0; 9797 ctsio->kern_sg_entries = 0; 9798 9799 /* 9800 * The control device is always connected. The disk device, on the 9801 * other hand, may not be online all the time. 9802 */ 9803 if (lun != NULL) 9804 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9805 lun->be_lun->lun_type; 9806 else 9807 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9808 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9809 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9810 mpp_ptr->descr[0].page_code = 0x3f; 9811 mpp_ptr->descr[0].subpage_code = 0xff; 9812 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9813 9814 ctl_set_success(ctsio); 9815 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9816 ctsio->be_move_done = ctl_config_move_done; 9817 ctl_datamove((union ctl_io *)ctsio); 9818 return (CTL_RETVAL_COMPLETE); 9819} 9820 9821static int 9822ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9823{ 9824 struct scsi_vpd_device_id *devid_ptr; 9825 struct scsi_vpd_id_descriptor *desc; 9826 struct ctl_softc *softc; 9827 struct ctl_lun *lun; 9828 struct ctl_port *port; 9829 int data_len; 9830 uint8_t proto; 9831 9832 softc = control_softc; 9833 9834 port = softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9835 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9836 9837 data_len = sizeof(struct scsi_vpd_device_id) + 9838 sizeof(struct scsi_vpd_id_descriptor) + 9839 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9840 sizeof(struct scsi_vpd_id_descriptor) + 9841 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9842 if (lun && lun->lun_devid) 9843 data_len += lun->lun_devid->len; 9844 if (port->port_devid) 9845 data_len += port->port_devid->len; 9846 if (port->target_devid) 9847 data_len += port->target_devid->len; 9848 9849 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9850 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9851 ctsio->kern_sg_entries = 0; 9852 9853 if (data_len < alloc_len) { 9854 ctsio->residual = alloc_len - data_len; 9855 ctsio->kern_data_len = data_len; 9856 ctsio->kern_total_len = data_len; 9857 } else { 9858 ctsio->residual = 0; 9859 ctsio->kern_data_len = alloc_len; 9860 ctsio->kern_total_len = alloc_len; 9861 } 9862 ctsio->kern_data_resid = 0; 9863 ctsio->kern_rel_offset = 0; 9864 ctsio->kern_sg_entries = 0; 9865 9866 /* 9867 * The control device is always connected. The disk device, on the 9868 * other hand, may not be online all the time. 9869 */ 9870 if (lun != NULL) 9871 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9872 lun->be_lun->lun_type; 9873 else 9874 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9875 devid_ptr->page_code = SVPD_DEVICE_ID; 9876 scsi_ulto2b(data_len - 4, devid_ptr->length); 9877 9878 if (port->port_type == CTL_PORT_FC) 9879 proto = SCSI_PROTO_FC << 4; 9880 else if (port->port_type == CTL_PORT_ISCSI) 9881 proto = SCSI_PROTO_ISCSI << 4; 9882 else 9883 proto = SCSI_PROTO_SPI << 4; 9884 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9885 9886 /* 9887 * We're using a LUN association here. i.e., this device ID is a 9888 * per-LUN identifier. 9889 */ 9890 if (lun && lun->lun_devid) { 9891 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9892 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9893 lun->lun_devid->len); 9894 } 9895 9896 /* 9897 * This is for the WWPN which is a port association. 9898 */ 9899 if (port->port_devid) { 9900 memcpy(desc, port->port_devid->data, port->port_devid->len); 9901 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9902 port->port_devid->len); 9903 } 9904 9905 /* 9906 * This is for the Relative Target Port(type 4h) identifier 9907 */ 9908 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9909 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9910 SVPD_ID_TYPE_RELTARG; 9911 desc->length = 4; 9912 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9913 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9914 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9915 9916 /* 9917 * This is for the Target Port Group(type 5h) identifier 9918 */ 9919 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9920 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9921 SVPD_ID_TYPE_TPORTGRP; 9922 desc->length = 4; 9923 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9924 &desc->identifier[2]); 9925 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9926 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9927 9928 /* 9929 * This is for the Target identifier 9930 */ 9931 if (port->target_devid) { 9932 memcpy(desc, port->target_devid->data, port->target_devid->len); 9933 } 9934 9935 ctl_set_success(ctsio); 9936 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9937 ctsio->be_move_done = ctl_config_move_done; 9938 ctl_datamove((union ctl_io *)ctsio); 9939 return (CTL_RETVAL_COMPLETE); 9940} 9941 9942static int 9943ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9944{ 9945 struct ctl_softc *softc = control_softc; 9946 struct scsi_vpd_scsi_ports *sp; 9947 struct scsi_vpd_port_designation *pd; 9948 struct scsi_vpd_port_designation_cont *pdc; 9949 struct ctl_lun *lun; 9950 struct ctl_port *port; 9951 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9952 int num_target_port_groups; 9953 9954 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9955 9956 if (softc->is_single) 9957 num_target_port_groups = 1; 9958 else 9959 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9960 num_target_ports = 0; 9961 iid_len = 0; 9962 id_len = 0; 9963 mtx_lock(&softc->ctl_lock); 9964 STAILQ_FOREACH(port, &softc->port_list, links) { 9965 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9966 continue; 9967 if (lun != NULL && 9968 ctl_map_lun_back(softc, port->targ_port, lun->lun) >= 9969 CTL_MAX_LUNS) 9970 continue; 9971 num_target_ports++; 9972 if (port->init_devid) 9973 iid_len += port->init_devid->len; 9974 if (port->port_devid) 9975 id_len += port->port_devid->len; 9976 } 9977 mtx_unlock(&softc->ctl_lock); 9978 9979 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9980 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9981 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9982 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9983 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9984 ctsio->kern_sg_entries = 0; 9985 9986 if (data_len < alloc_len) { 9987 ctsio->residual = alloc_len - data_len; 9988 ctsio->kern_data_len = data_len; 9989 ctsio->kern_total_len = data_len; 9990 } else { 9991 ctsio->residual = 0; 9992 ctsio->kern_data_len = alloc_len; 9993 ctsio->kern_total_len = alloc_len; 9994 } 9995 ctsio->kern_data_resid = 0; 9996 ctsio->kern_rel_offset = 0; 9997 ctsio->kern_sg_entries = 0; 9998 9999 /* 10000 * The control device is always connected. The disk device, on the 10001 * other hand, may not be online all the time. Need to change this 10002 * to figure out whether the disk device is actually online or not. 10003 */ 10004 if (lun != NULL) 10005 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10006 lun->be_lun->lun_type; 10007 else 10008 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10009 10010 sp->page_code = SVPD_SCSI_PORTS; 10011 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10012 sp->page_length); 10013 pd = &sp->design[0]; 10014 10015 mtx_lock(&softc->ctl_lock); 10016 pg = softc->port_offset / CTL_MAX_PORTS; 10017 for (g = 0; g < num_target_port_groups; g++) { 10018 STAILQ_FOREACH(port, &softc->port_list, links) { 10019 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10020 continue; 10021 if (lun != NULL && 10022 ctl_map_lun_back(softc, port->targ_port, lun->lun) 10023 >= CTL_MAX_LUNS) 10024 continue; 10025 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10026 scsi_ulto2b(p, pd->relative_port_id); 10027 if (port->init_devid && g == pg) { 10028 iid_len = port->init_devid->len; 10029 memcpy(pd->initiator_transportid, 10030 port->init_devid->data, port->init_devid->len); 10031 } else 10032 iid_len = 0; 10033 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10034 pdc = (struct scsi_vpd_port_designation_cont *) 10035 (&pd->initiator_transportid[iid_len]); 10036 if (port->port_devid && g == pg) { 10037 id_len = port->port_devid->len; 10038 memcpy(pdc->target_port_descriptors, 10039 port->port_devid->data, port->port_devid->len); 10040 } else 10041 id_len = 0; 10042 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10043 pd = (struct scsi_vpd_port_designation *) 10044 ((uint8_t *)pdc->target_port_descriptors + id_len); 10045 } 10046 } 10047 mtx_unlock(&softc->ctl_lock); 10048 10049 ctl_set_success(ctsio); 10050 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10051 ctsio->be_move_done = ctl_config_move_done; 10052 ctl_datamove((union ctl_io *)ctsio); 10053 return (CTL_RETVAL_COMPLETE); 10054} 10055 10056static int 10057ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10058{ 10059 struct scsi_vpd_block_limits *bl_ptr; 10060 struct ctl_lun *lun; 10061 int bs; 10062 10063 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10064 10065 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10066 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10067 ctsio->kern_sg_entries = 0; 10068 10069 if (sizeof(*bl_ptr) < alloc_len) { 10070 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10071 ctsio->kern_data_len = sizeof(*bl_ptr); 10072 ctsio->kern_total_len = sizeof(*bl_ptr); 10073 } else { 10074 ctsio->residual = 0; 10075 ctsio->kern_data_len = alloc_len; 10076 ctsio->kern_total_len = alloc_len; 10077 } 10078 ctsio->kern_data_resid = 0; 10079 ctsio->kern_rel_offset = 0; 10080 ctsio->kern_sg_entries = 0; 10081 10082 /* 10083 * The control device is always connected. The disk device, on the 10084 * other hand, may not be online all the time. Need to change this 10085 * to figure out whether the disk device is actually online or not. 10086 */ 10087 if (lun != NULL) 10088 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10089 lun->be_lun->lun_type; 10090 else 10091 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10092 10093 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10094 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10095 bl_ptr->max_cmp_write_len = 0xff; 10096 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10097 if (lun != NULL) { 10098 bs = lun->be_lun->blocksize; 10099 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10100 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10101 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10102 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10103 if (lun->be_lun->ublockexp != 0) { 10104 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10105 bl_ptr->opt_unmap_grain); 10106 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10107 bl_ptr->unmap_grain_align); 10108 } 10109 } 10110 scsi_ulto4b(lun->be_lun->atomicblock, 10111 bl_ptr->max_atomic_transfer_length); 10112 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10113 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10114 } 10115 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10116 10117 ctl_set_success(ctsio); 10118 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10119 ctsio->be_move_done = ctl_config_move_done; 10120 ctl_datamove((union ctl_io *)ctsio); 10121 return (CTL_RETVAL_COMPLETE); 10122} 10123 10124static int 10125ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10126{ 10127 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10128 struct ctl_lun *lun; 10129 const char *value; 10130 u_int i; 10131 10132 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10133 10134 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10135 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10136 ctsio->kern_sg_entries = 0; 10137 10138 if (sizeof(*bdc_ptr) < alloc_len) { 10139 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10140 ctsio->kern_data_len = sizeof(*bdc_ptr); 10141 ctsio->kern_total_len = sizeof(*bdc_ptr); 10142 } else { 10143 ctsio->residual = 0; 10144 ctsio->kern_data_len = alloc_len; 10145 ctsio->kern_total_len = alloc_len; 10146 } 10147 ctsio->kern_data_resid = 0; 10148 ctsio->kern_rel_offset = 0; 10149 ctsio->kern_sg_entries = 0; 10150 10151 /* 10152 * The control device is always connected. The disk device, on the 10153 * other hand, may not be online all the time. Need to change this 10154 * to figure out whether the disk device is actually online or not. 10155 */ 10156 if (lun != NULL) 10157 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10158 lun->be_lun->lun_type; 10159 else 10160 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10161 bdc_ptr->page_code = SVPD_BDC; 10162 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10163 if (lun != NULL && 10164 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10165 i = strtol(value, NULL, 0); 10166 else 10167 i = CTL_DEFAULT_ROTATION_RATE; 10168 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10169 if (lun != NULL && 10170 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10171 i = strtol(value, NULL, 0); 10172 else 10173 i = 0; 10174 bdc_ptr->wab_wac_ff = (i & 0x0f); 10175 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10176 10177 ctl_set_success(ctsio); 10178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10179 ctsio->be_move_done = ctl_config_move_done; 10180 ctl_datamove((union ctl_io *)ctsio); 10181 return (CTL_RETVAL_COMPLETE); 10182} 10183 10184static int 10185ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10186{ 10187 struct scsi_vpd_logical_block_prov *lbp_ptr; 10188 struct ctl_lun *lun; 10189 10190 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10191 10192 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10193 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10194 ctsio->kern_sg_entries = 0; 10195 10196 if (sizeof(*lbp_ptr) < alloc_len) { 10197 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10198 ctsio->kern_data_len = sizeof(*lbp_ptr); 10199 ctsio->kern_total_len = sizeof(*lbp_ptr); 10200 } else { 10201 ctsio->residual = 0; 10202 ctsio->kern_data_len = alloc_len; 10203 ctsio->kern_total_len = alloc_len; 10204 } 10205 ctsio->kern_data_resid = 0; 10206 ctsio->kern_rel_offset = 0; 10207 ctsio->kern_sg_entries = 0; 10208 10209 /* 10210 * The control device is always connected. The disk device, on the 10211 * other hand, may not be online all the time. Need to change this 10212 * to figure out whether the disk device is actually online or not. 10213 */ 10214 if (lun != NULL) 10215 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10216 lun->be_lun->lun_type; 10217 else 10218 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10219 10220 lbp_ptr->page_code = SVPD_LBP; 10221 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10222 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10223 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10224 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10225 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10226 lbp_ptr->prov_type = SVPD_LBP_THIN; 10227 } 10228 10229 ctl_set_success(ctsio); 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 return (CTL_RETVAL_COMPLETE); 10234} 10235 10236static int 10237ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10238{ 10239 struct scsi_inquiry *cdb; 10240 int alloc_len, retval; 10241 10242 cdb = (struct scsi_inquiry *)ctsio->cdb; 10243 10244 retval = CTL_RETVAL_COMPLETE; 10245 10246 alloc_len = scsi_2btoul(cdb->length); 10247 10248 switch (cdb->page_code) { 10249 case SVPD_SUPPORTED_PAGES: 10250 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10251 break; 10252 case SVPD_UNIT_SERIAL_NUMBER: 10253 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10254 break; 10255 case SVPD_DEVICE_ID: 10256 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10257 break; 10258 case SVPD_EXTENDED_INQUIRY_DATA: 10259 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10260 break; 10261 case SVPD_MODE_PAGE_POLICY: 10262 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10263 break; 10264 case SVPD_SCSI_PORTS: 10265 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10266 break; 10267 case SVPD_SCSI_TPC: 10268 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10269 break; 10270 case SVPD_BLOCK_LIMITS: 10271 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10272 break; 10273 case SVPD_BDC: 10274 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10275 break; 10276 case SVPD_LBP: 10277 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10278 break; 10279 default: 10280 ctl_set_invalid_field(ctsio, 10281 /*sks_valid*/ 1, 10282 /*command*/ 1, 10283 /*field*/ 2, 10284 /*bit_valid*/ 0, 10285 /*bit*/ 0); 10286 ctl_done((union ctl_io *)ctsio); 10287 retval = CTL_RETVAL_COMPLETE; 10288 break; 10289 } 10290 10291 return (retval); 10292} 10293 10294static int 10295ctl_inquiry_std(struct ctl_scsiio *ctsio) 10296{ 10297 struct scsi_inquiry_data *inq_ptr; 10298 struct scsi_inquiry *cdb; 10299 struct ctl_softc *softc; 10300 struct ctl_lun *lun; 10301 char *val; 10302 uint32_t alloc_len, data_len; 10303 ctl_port_type port_type; 10304 10305 softc = control_softc; 10306 10307 /* 10308 * Figure out whether we're talking to a Fibre Channel port or not. 10309 * We treat the ioctl front end, and any SCSI adapters, as packetized 10310 * SCSI front ends. 10311 */ 10312 port_type = softc->ctl_ports[ 10313 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10314 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10315 port_type = CTL_PORT_SCSI; 10316 10317 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10318 cdb = (struct scsi_inquiry *)ctsio->cdb; 10319 alloc_len = scsi_2btoul(cdb->length); 10320 10321 /* 10322 * We malloc the full inquiry data size here and fill it 10323 * in. If the user only asks for less, we'll give him 10324 * that much. 10325 */ 10326 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10327 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10328 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10329 ctsio->kern_sg_entries = 0; 10330 ctsio->kern_data_resid = 0; 10331 ctsio->kern_rel_offset = 0; 10332 10333 if (data_len < alloc_len) { 10334 ctsio->residual = alloc_len - data_len; 10335 ctsio->kern_data_len = data_len; 10336 ctsio->kern_total_len = data_len; 10337 } else { 10338 ctsio->residual = 0; 10339 ctsio->kern_data_len = alloc_len; 10340 ctsio->kern_total_len = alloc_len; 10341 } 10342 10343 /* 10344 * If we have a LUN configured, report it as connected. Otherwise, 10345 * report that it is offline or no device is supported, depending 10346 * on the value of inquiry_pq_no_lun. 10347 * 10348 * According to the spec (SPC-4 r34), the peripheral qualifier 10349 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10350 * 10351 * "A peripheral device having the specified peripheral device type 10352 * is not connected to this logical unit. However, the device 10353 * server is capable of supporting the specified peripheral device 10354 * type on this logical unit." 10355 * 10356 * According to the same spec, the peripheral qualifier 10357 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10358 * 10359 * "The device server is not capable of supporting a peripheral 10360 * device on this logical unit. For this peripheral qualifier the 10361 * peripheral device type shall be set to 1Fh. All other peripheral 10362 * device type values are reserved for this peripheral qualifier." 10363 * 10364 * Given the text, it would seem that we probably want to report that 10365 * the LUN is offline here. There is no LUN connected, but we can 10366 * support a LUN at the given LUN number. 10367 * 10368 * In the real world, though, it sounds like things are a little 10369 * different: 10370 * 10371 * - Linux, when presented with a LUN with the offline peripheral 10372 * qualifier, will create an sg driver instance for it. So when 10373 * you attach it to CTL, you wind up with a ton of sg driver 10374 * instances. (One for every LUN that Linux bothered to probe.) 10375 * Linux does this despite the fact that it issues a REPORT LUNs 10376 * to LUN 0 to get the inventory of supported LUNs. 10377 * 10378 * - There is other anecdotal evidence (from Emulex folks) about 10379 * arrays that use the offline peripheral qualifier for LUNs that 10380 * are on the "passive" path in an active/passive array. 10381 * 10382 * So the solution is provide a hopefully reasonable default 10383 * (return bad/no LUN) and allow the user to change the behavior 10384 * with a tunable/sysctl variable. 10385 */ 10386 if (lun != NULL) 10387 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10388 lun->be_lun->lun_type; 10389 else if (softc->inquiry_pq_no_lun == 0) 10390 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10391 else 10392 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10393 10394 /* RMB in byte 2 is 0 */ 10395 inq_ptr->version = SCSI_REV_SPC4; 10396 10397 /* 10398 * According to SAM-3, even if a device only supports a single 10399 * level of LUN addressing, it should still set the HISUP bit: 10400 * 10401 * 4.9.1 Logical unit numbers overview 10402 * 10403 * All logical unit number formats described in this standard are 10404 * hierarchical in structure even when only a single level in that 10405 * hierarchy is used. The HISUP bit shall be set to one in the 10406 * standard INQUIRY data (see SPC-2) when any logical unit number 10407 * format described in this standard is used. Non-hierarchical 10408 * formats are outside the scope of this standard. 10409 * 10410 * Therefore we set the HiSup bit here. 10411 * 10412 * The reponse format is 2, per SPC-3. 10413 */ 10414 inq_ptr->response_format = SID_HiSup | 2; 10415 10416 inq_ptr->additional_length = data_len - 10417 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10418 CTL_DEBUG_PRINT(("additional_length = %d\n", 10419 inq_ptr->additional_length)); 10420 10421 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10422 /* 16 bit addressing */ 10423 if (port_type == CTL_PORT_SCSI) 10424 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10425 /* XXX set the SID_MultiP bit here if we're actually going to 10426 respond on multiple ports */ 10427 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10428 10429 /* 16 bit data bus, synchronous transfers */ 10430 if (port_type == CTL_PORT_SCSI) 10431 inq_ptr->flags = SID_WBus16 | SID_Sync; 10432 /* 10433 * XXX KDM do we want to support tagged queueing on the control 10434 * device at all? 10435 */ 10436 if ((lun == NULL) 10437 || (lun->be_lun->lun_type != T_PROCESSOR)) 10438 inq_ptr->flags |= SID_CmdQue; 10439 /* 10440 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10441 * We have 8 bytes for the vendor name, and 16 bytes for the device 10442 * name and 4 bytes for the revision. 10443 */ 10444 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10445 "vendor")) == NULL) { 10446 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10447 } else { 10448 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10449 strncpy(inq_ptr->vendor, val, 10450 min(sizeof(inq_ptr->vendor), strlen(val))); 10451 } 10452 if (lun == NULL) { 10453 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10454 sizeof(inq_ptr->product)); 10455 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10456 switch (lun->be_lun->lun_type) { 10457 case T_DIRECT: 10458 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10459 sizeof(inq_ptr->product)); 10460 break; 10461 case T_PROCESSOR: 10462 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10463 sizeof(inq_ptr->product)); 10464 break; 10465 default: 10466 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10467 sizeof(inq_ptr->product)); 10468 break; 10469 } 10470 } else { 10471 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10472 strncpy(inq_ptr->product, val, 10473 min(sizeof(inq_ptr->product), strlen(val))); 10474 } 10475 10476 /* 10477 * XXX make this a macro somewhere so it automatically gets 10478 * incremented when we make changes. 10479 */ 10480 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10481 "revision")) == NULL) { 10482 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10483 } else { 10484 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10485 strncpy(inq_ptr->revision, val, 10486 min(sizeof(inq_ptr->revision), strlen(val))); 10487 } 10488 10489 /* 10490 * For parallel SCSI, we support double transition and single 10491 * transition clocking. We also support QAS (Quick Arbitration 10492 * and Selection) and Information Unit transfers on both the 10493 * control and array devices. 10494 */ 10495 if (port_type == CTL_PORT_SCSI) 10496 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10497 SID_SPI_IUS; 10498 10499 /* SAM-5 (no version claimed) */ 10500 scsi_ulto2b(0x00A0, inq_ptr->version1); 10501 /* SPC-4 (no version claimed) */ 10502 scsi_ulto2b(0x0460, inq_ptr->version2); 10503 if (port_type == CTL_PORT_FC) { 10504 /* FCP-2 ANSI INCITS.350:2003 */ 10505 scsi_ulto2b(0x0917, inq_ptr->version3); 10506 } else if (port_type == CTL_PORT_SCSI) { 10507 /* SPI-4 ANSI INCITS.362:200x */ 10508 scsi_ulto2b(0x0B56, inq_ptr->version3); 10509 } else if (port_type == CTL_PORT_ISCSI) { 10510 /* iSCSI (no version claimed) */ 10511 scsi_ulto2b(0x0960, inq_ptr->version3); 10512 } else if (port_type == CTL_PORT_SAS) { 10513 /* SAS (no version claimed) */ 10514 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10515 } 10516 10517 if (lun == NULL) { 10518 /* SBC-4 (no version claimed) */ 10519 scsi_ulto2b(0x0600, inq_ptr->version4); 10520 } else { 10521 switch (lun->be_lun->lun_type) { 10522 case T_DIRECT: 10523 /* SBC-4 (no version claimed) */ 10524 scsi_ulto2b(0x0600, inq_ptr->version4); 10525 break; 10526 case T_PROCESSOR: 10527 default: 10528 break; 10529 } 10530 } 10531 10532 ctl_set_success(ctsio); 10533 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10534 ctsio->be_move_done = ctl_config_move_done; 10535 ctl_datamove((union ctl_io *)ctsio); 10536 return (CTL_RETVAL_COMPLETE); 10537} 10538 10539int 10540ctl_inquiry(struct ctl_scsiio *ctsio) 10541{ 10542 struct scsi_inquiry *cdb; 10543 int retval; 10544 10545 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10546 10547 cdb = (struct scsi_inquiry *)ctsio->cdb; 10548 if (cdb->byte2 & SI_EVPD) 10549 retval = ctl_inquiry_evpd(ctsio); 10550 else if (cdb->page_code == 0) 10551 retval = ctl_inquiry_std(ctsio); 10552 else { 10553 ctl_set_invalid_field(ctsio, 10554 /*sks_valid*/ 1, 10555 /*command*/ 1, 10556 /*field*/ 2, 10557 /*bit_valid*/ 0, 10558 /*bit*/ 0); 10559 ctl_done((union ctl_io *)ctsio); 10560 return (CTL_RETVAL_COMPLETE); 10561 } 10562 10563 return (retval); 10564} 10565 10566/* 10567 * For known CDB types, parse the LBA and length. 10568 */ 10569static int 10570ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10571{ 10572 if (io->io_hdr.io_type != CTL_IO_SCSI) 10573 return (1); 10574 10575 switch (io->scsiio.cdb[0]) { 10576 case COMPARE_AND_WRITE: { 10577 struct scsi_compare_and_write *cdb; 10578 10579 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10580 10581 *lba = scsi_8btou64(cdb->addr); 10582 *len = cdb->length; 10583 break; 10584 } 10585 case READ_6: 10586 case WRITE_6: { 10587 struct scsi_rw_6 *cdb; 10588 10589 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10590 10591 *lba = scsi_3btoul(cdb->addr); 10592 /* only 5 bits are valid in the most significant address byte */ 10593 *lba &= 0x1fffff; 10594 *len = cdb->length; 10595 break; 10596 } 10597 case READ_10: 10598 case WRITE_10: { 10599 struct scsi_rw_10 *cdb; 10600 10601 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10602 10603 *lba = scsi_4btoul(cdb->addr); 10604 *len = scsi_2btoul(cdb->length); 10605 break; 10606 } 10607 case WRITE_VERIFY_10: { 10608 struct scsi_write_verify_10 *cdb; 10609 10610 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10611 10612 *lba = scsi_4btoul(cdb->addr); 10613 *len = scsi_2btoul(cdb->length); 10614 break; 10615 } 10616 case READ_12: 10617 case WRITE_12: { 10618 struct scsi_rw_12 *cdb; 10619 10620 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10621 10622 *lba = scsi_4btoul(cdb->addr); 10623 *len = scsi_4btoul(cdb->length); 10624 break; 10625 } 10626 case WRITE_VERIFY_12: { 10627 struct scsi_write_verify_12 *cdb; 10628 10629 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10630 10631 *lba = scsi_4btoul(cdb->addr); 10632 *len = scsi_4btoul(cdb->length); 10633 break; 10634 } 10635 case READ_16: 10636 case WRITE_16: 10637 case WRITE_ATOMIC_16: { 10638 struct scsi_rw_16 *cdb; 10639 10640 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10641 10642 *lba = scsi_8btou64(cdb->addr); 10643 *len = scsi_4btoul(cdb->length); 10644 break; 10645 } 10646 case WRITE_VERIFY_16: { 10647 struct scsi_write_verify_16 *cdb; 10648 10649 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10650 10651 *lba = scsi_8btou64(cdb->addr); 10652 *len = scsi_4btoul(cdb->length); 10653 break; 10654 } 10655 case WRITE_SAME_10: { 10656 struct scsi_write_same_10 *cdb; 10657 10658 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10659 10660 *lba = scsi_4btoul(cdb->addr); 10661 *len = scsi_2btoul(cdb->length); 10662 break; 10663 } 10664 case WRITE_SAME_16: { 10665 struct scsi_write_same_16 *cdb; 10666 10667 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10668 10669 *lba = scsi_8btou64(cdb->addr); 10670 *len = scsi_4btoul(cdb->length); 10671 break; 10672 } 10673 case VERIFY_10: { 10674 struct scsi_verify_10 *cdb; 10675 10676 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10677 10678 *lba = scsi_4btoul(cdb->addr); 10679 *len = scsi_2btoul(cdb->length); 10680 break; 10681 } 10682 case VERIFY_12: { 10683 struct scsi_verify_12 *cdb; 10684 10685 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10686 10687 *lba = scsi_4btoul(cdb->addr); 10688 *len = scsi_4btoul(cdb->length); 10689 break; 10690 } 10691 case VERIFY_16: { 10692 struct scsi_verify_16 *cdb; 10693 10694 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10695 10696 *lba = scsi_8btou64(cdb->addr); 10697 *len = scsi_4btoul(cdb->length); 10698 break; 10699 } 10700 case UNMAP: { 10701 *lba = 0; 10702 *len = UINT64_MAX; 10703 break; 10704 } 10705 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10706 struct scsi_get_lba_status *cdb; 10707 10708 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10709 *lba = scsi_8btou64(cdb->addr); 10710 *len = UINT32_MAX; 10711 break; 10712 } 10713 default: 10714 return (1); 10715 break; /* NOTREACHED */ 10716 } 10717 10718 return (0); 10719} 10720 10721static ctl_action 10722ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10723 bool seq) 10724{ 10725 uint64_t endlba1, endlba2; 10726 10727 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10728 endlba2 = lba2 + len2 - 1; 10729 10730 if ((endlba1 < lba2) || (endlba2 < lba1)) 10731 return (CTL_ACTION_PASS); 10732 else 10733 return (CTL_ACTION_BLOCK); 10734} 10735 10736static int 10737ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10738{ 10739 struct ctl_ptr_len_flags *ptrlen; 10740 struct scsi_unmap_desc *buf, *end, *range; 10741 uint64_t lba; 10742 uint32_t len; 10743 10744 /* If not UNMAP -- go other way. */ 10745 if (io->io_hdr.io_type != CTL_IO_SCSI || 10746 io->scsiio.cdb[0] != UNMAP) 10747 return (CTL_ACTION_ERROR); 10748 10749 /* If UNMAP without data -- block and wait for data. */ 10750 ptrlen = (struct ctl_ptr_len_flags *) 10751 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10752 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10753 ptrlen->ptr == NULL) 10754 return (CTL_ACTION_BLOCK); 10755 10756 /* UNMAP with data -- check for collision. */ 10757 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10758 end = buf + ptrlen->len / sizeof(*buf); 10759 for (range = buf; range < end; range++) { 10760 lba = scsi_8btou64(range->lba); 10761 len = scsi_4btoul(range->length); 10762 if ((lba < lba2 + len2) && (lba + len > lba2)) 10763 return (CTL_ACTION_BLOCK); 10764 } 10765 return (CTL_ACTION_PASS); 10766} 10767 10768static ctl_action 10769ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10770{ 10771 uint64_t lba1, lba2; 10772 uint64_t len1, len2; 10773 int retval; 10774 10775 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10776 return (CTL_ACTION_ERROR); 10777 10778 retval = ctl_extent_check_unmap(io1, lba2, len2); 10779 if (retval != CTL_ACTION_ERROR) 10780 return (retval); 10781 10782 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10783 return (CTL_ACTION_ERROR); 10784 10785 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10786} 10787 10788static ctl_action 10789ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10790{ 10791 uint64_t lba1, lba2; 10792 uint64_t len1, len2; 10793 10794 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10795 return (CTL_ACTION_ERROR); 10796 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10797 return (CTL_ACTION_ERROR); 10798 10799 if (lba1 + len1 == lba2) 10800 return (CTL_ACTION_BLOCK); 10801 return (CTL_ACTION_PASS); 10802} 10803 10804static ctl_action 10805ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10806 union ctl_io *ooa_io) 10807{ 10808 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10809 ctl_serialize_action *serialize_row; 10810 10811 /* 10812 * The initiator attempted multiple untagged commands at the same 10813 * time. Can't do that. 10814 */ 10815 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10816 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10817 && ((pending_io->io_hdr.nexus.targ_port == 10818 ooa_io->io_hdr.nexus.targ_port) 10819 && (pending_io->io_hdr.nexus.initid.id == 10820 ooa_io->io_hdr.nexus.initid.id)) 10821 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10822 return (CTL_ACTION_OVERLAP); 10823 10824 /* 10825 * The initiator attempted to send multiple tagged commands with 10826 * the same ID. (It's fine if different initiators have the same 10827 * tag ID.) 10828 * 10829 * Even if all of those conditions are true, we don't kill the I/O 10830 * if the command ahead of us has been aborted. We won't end up 10831 * sending it to the FETD, and it's perfectly legal to resend a 10832 * command with the same tag number as long as the previous 10833 * instance of this tag number has been aborted somehow. 10834 */ 10835 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10836 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10837 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10838 && ((pending_io->io_hdr.nexus.targ_port == 10839 ooa_io->io_hdr.nexus.targ_port) 10840 && (pending_io->io_hdr.nexus.initid.id == 10841 ooa_io->io_hdr.nexus.initid.id)) 10842 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10843 return (CTL_ACTION_OVERLAP_TAG); 10844 10845 /* 10846 * If we get a head of queue tag, SAM-3 says that we should 10847 * immediately execute it. 10848 * 10849 * What happens if this command would normally block for some other 10850 * reason? e.g. a request sense with a head of queue tag 10851 * immediately after a write. Normally that would block, but this 10852 * will result in its getting executed immediately... 10853 * 10854 * We currently return "pass" instead of "skip", so we'll end up 10855 * going through the rest of the queue to check for overlapped tags. 10856 * 10857 * XXX KDM check for other types of blockage first?? 10858 */ 10859 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10860 return (CTL_ACTION_PASS); 10861 10862 /* 10863 * Ordered tags have to block until all items ahead of them 10864 * have completed. If we get called with an ordered tag, we always 10865 * block, if something else is ahead of us in the queue. 10866 */ 10867 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10868 return (CTL_ACTION_BLOCK); 10869 10870 /* 10871 * Simple tags get blocked until all head of queue and ordered tags 10872 * ahead of them have completed. I'm lumping untagged commands in 10873 * with simple tags here. XXX KDM is that the right thing to do? 10874 */ 10875 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10876 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10877 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10878 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10879 return (CTL_ACTION_BLOCK); 10880 10881 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10882 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10883 10884 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10885 10886 switch (serialize_row[pending_entry->seridx]) { 10887 case CTL_SER_BLOCK: 10888 return (CTL_ACTION_BLOCK); 10889 case CTL_SER_EXTENT: 10890 return (ctl_extent_check(ooa_io, pending_io, 10891 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10892 case CTL_SER_EXTENTOPT: 10893 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10894 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10895 return (ctl_extent_check(ooa_io, pending_io, 10896 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10897 return (CTL_ACTION_PASS); 10898 case CTL_SER_EXTENTSEQ: 10899 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 10900 return (ctl_extent_check_seq(ooa_io, pending_io)); 10901 return (CTL_ACTION_PASS); 10902 case CTL_SER_PASS: 10903 return (CTL_ACTION_PASS); 10904 case CTL_SER_BLOCKOPT: 10905 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10906 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10907 return (CTL_ACTION_BLOCK); 10908 return (CTL_ACTION_PASS); 10909 case CTL_SER_SKIP: 10910 return (CTL_ACTION_SKIP); 10911 default: 10912 panic("invalid serialization value %d", 10913 serialize_row[pending_entry->seridx]); 10914 } 10915 10916 return (CTL_ACTION_ERROR); 10917} 10918 10919/* 10920 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10921 * Assumptions: 10922 * - pending_io is generally either incoming, or on the blocked queue 10923 * - starting I/O is the I/O we want to start the check with. 10924 */ 10925static ctl_action 10926ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10927 union ctl_io *starting_io) 10928{ 10929 union ctl_io *ooa_io; 10930 ctl_action action; 10931 10932 mtx_assert(&lun->lun_lock, MA_OWNED); 10933 10934 /* 10935 * Run back along the OOA queue, starting with the current 10936 * blocked I/O and going through every I/O before it on the 10937 * queue. If starting_io is NULL, we'll just end up returning 10938 * CTL_ACTION_PASS. 10939 */ 10940 for (ooa_io = starting_io; ooa_io != NULL; 10941 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10942 ooa_links)){ 10943 10944 /* 10945 * This routine just checks to see whether 10946 * cur_blocked is blocked by ooa_io, which is ahead 10947 * of it in the queue. It doesn't queue/dequeue 10948 * cur_blocked. 10949 */ 10950 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10951 switch (action) { 10952 case CTL_ACTION_BLOCK: 10953 case CTL_ACTION_OVERLAP: 10954 case CTL_ACTION_OVERLAP_TAG: 10955 case CTL_ACTION_SKIP: 10956 case CTL_ACTION_ERROR: 10957 return (action); 10958 break; /* NOTREACHED */ 10959 case CTL_ACTION_PASS: 10960 break; 10961 default: 10962 panic("invalid action %d", action); 10963 break; /* NOTREACHED */ 10964 } 10965 } 10966 10967 return (CTL_ACTION_PASS); 10968} 10969 10970/* 10971 * Assumptions: 10972 * - An I/O has just completed, and has been removed from the per-LUN OOA 10973 * queue, so some items on the blocked queue may now be unblocked. 10974 */ 10975static int 10976ctl_check_blocked(struct ctl_lun *lun) 10977{ 10978 union ctl_io *cur_blocked, *next_blocked; 10979 10980 mtx_assert(&lun->lun_lock, MA_OWNED); 10981 10982 /* 10983 * Run forward from the head of the blocked queue, checking each 10984 * entry against the I/Os prior to it on the OOA queue to see if 10985 * there is still any blockage. 10986 * 10987 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10988 * with our removing a variable on it while it is traversing the 10989 * list. 10990 */ 10991 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10992 cur_blocked != NULL; cur_blocked = next_blocked) { 10993 union ctl_io *prev_ooa; 10994 ctl_action action; 10995 10996 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10997 blocked_links); 10998 10999 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11000 ctl_ooaq, ooa_links); 11001 11002 /* 11003 * If cur_blocked happens to be the first item in the OOA 11004 * queue now, prev_ooa will be NULL, and the action 11005 * returned will just be CTL_ACTION_PASS. 11006 */ 11007 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11008 11009 switch (action) { 11010 case CTL_ACTION_BLOCK: 11011 /* Nothing to do here, still blocked */ 11012 break; 11013 case CTL_ACTION_OVERLAP: 11014 case CTL_ACTION_OVERLAP_TAG: 11015 /* 11016 * This shouldn't happen! In theory we've already 11017 * checked this command for overlap... 11018 */ 11019 break; 11020 case CTL_ACTION_PASS: 11021 case CTL_ACTION_SKIP: { 11022 const struct ctl_cmd_entry *entry; 11023 int isc_retval; 11024 11025 /* 11026 * The skip case shouldn't happen, this transaction 11027 * should have never made it onto the blocked queue. 11028 */ 11029 /* 11030 * This I/O is no longer blocked, we can remove it 11031 * from the blocked queue. Since this is a TAILQ 11032 * (doubly linked list), we can do O(1) removals 11033 * from any place on the list. 11034 */ 11035 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11036 blocked_links); 11037 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11038 11039 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11040 /* 11041 * Need to send IO back to original side to 11042 * run 11043 */ 11044 union ctl_ha_msg msg_info; 11045 11046 msg_info.hdr.original_sc = 11047 cur_blocked->io_hdr.original_sc; 11048 msg_info.hdr.serializing_sc = cur_blocked; 11049 msg_info.hdr.msg_type = CTL_MSG_R2R; 11050 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11051 &msg_info, sizeof(msg_info), 0)) > 11052 CTL_HA_STATUS_SUCCESS) { 11053 printf("CTL:Check Blocked error from " 11054 "ctl_ha_msg_send %d\n", 11055 isc_retval); 11056 } 11057 break; 11058 } 11059 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11060 11061 /* 11062 * Check this I/O for LUN state changes that may 11063 * have happened while this command was blocked. 11064 * The LUN state may have been changed by a command 11065 * ahead of us in the queue, so we need to re-check 11066 * for any states that can be caused by SCSI 11067 * commands. 11068 */ 11069 if (ctl_scsiio_lun_check(lun, entry, 11070 &cur_blocked->scsiio) == 0) { 11071 cur_blocked->io_hdr.flags |= 11072 CTL_FLAG_IS_WAS_ON_RTR; 11073 ctl_enqueue_rtr(cur_blocked); 11074 } else 11075 ctl_done(cur_blocked); 11076 break; 11077 } 11078 default: 11079 /* 11080 * This probably shouldn't happen -- we shouldn't 11081 * get CTL_ACTION_ERROR, or anything else. 11082 */ 11083 break; 11084 } 11085 } 11086 11087 return (CTL_RETVAL_COMPLETE); 11088} 11089 11090/* 11091 * This routine (with one exception) checks LUN flags that can be set by 11092 * commands ahead of us in the OOA queue. These flags have to be checked 11093 * when a command initially comes in, and when we pull a command off the 11094 * blocked queue and are preparing to execute it. The reason we have to 11095 * check these flags for commands on the blocked queue is that the LUN 11096 * state may have been changed by a command ahead of us while we're on the 11097 * blocked queue. 11098 * 11099 * Ordering is somewhat important with these checks, so please pay 11100 * careful attention to the placement of any new checks. 11101 */ 11102static int 11103ctl_scsiio_lun_check(struct ctl_lun *lun, 11104 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11105{ 11106 struct ctl_softc *softc = lun->ctl_softc; 11107 int retval; 11108 uint32_t residx; 11109 11110 retval = 0; 11111 11112 mtx_assert(&lun->lun_lock, MA_OWNED); 11113 11114 /* 11115 * If this shelf is a secondary shelf controller, we have to reject 11116 * any media access commands. 11117 */ 11118 if ((softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11119 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11120 ctl_set_lun_standby(ctsio); 11121 retval = 1; 11122 goto bailout; 11123 } 11124 11125 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11126 if (lun->flags & CTL_LUN_READONLY) { 11127 ctl_set_sense(ctsio, /*current_error*/ 1, 11128 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11129 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11130 retval = 1; 11131 goto bailout; 11132 } 11133 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11134 .eca_and_aen & SCP_SWP) != 0) { 11135 ctl_set_sense(ctsio, /*current_error*/ 1, 11136 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11137 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11138 retval = 1; 11139 goto bailout; 11140 } 11141 } 11142 11143 /* 11144 * Check for a reservation conflict. If this command isn't allowed 11145 * even on reserved LUNs, and if this initiator isn't the one who 11146 * reserved us, reject the command with a reservation conflict. 11147 */ 11148 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11149 if ((lun->flags & CTL_LUN_RESERVED) 11150 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11151 if (lun->res_idx != residx) { 11152 ctl_set_reservation_conflict(ctsio); 11153 retval = 1; 11154 goto bailout; 11155 } 11156 } 11157 11158 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11159 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11160 /* No reservation or command is allowed. */; 11161 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11162 (lun->res_type == SPR_TYPE_WR_EX || 11163 lun->res_type == SPR_TYPE_WR_EX_RO || 11164 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11165 /* The command is allowed for Write Exclusive resv. */; 11166 } else { 11167 /* 11168 * if we aren't registered or it's a res holder type 11169 * reservation and this isn't the res holder then set a 11170 * conflict. 11171 */ 11172 if (ctl_get_prkey(lun, residx) == 0 11173 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11174 ctl_set_reservation_conflict(ctsio); 11175 retval = 1; 11176 goto bailout; 11177 } 11178 11179 } 11180 11181 if ((lun->flags & CTL_LUN_OFFLINE) 11182 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11183 ctl_set_lun_not_ready(ctsio); 11184 retval = 1; 11185 goto bailout; 11186 } 11187 11188 /* 11189 * If the LUN is stopped, see if this particular command is allowed 11190 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11191 */ 11192 if ((lun->flags & CTL_LUN_STOPPED) 11193 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11194 /* "Logical unit not ready, initializing cmd. required" */ 11195 ctl_set_lun_stopped(ctsio); 11196 retval = 1; 11197 goto bailout; 11198 } 11199 11200 if ((lun->flags & CTL_LUN_INOPERABLE) 11201 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11202 /* "Medium format corrupted" */ 11203 ctl_set_medium_format_corrupted(ctsio); 11204 retval = 1; 11205 goto bailout; 11206 } 11207 11208bailout: 11209 return (retval); 11210 11211} 11212 11213static void 11214ctl_failover_io(union ctl_io *io, int have_lock) 11215{ 11216 ctl_set_busy(&io->scsiio); 11217 ctl_done(io); 11218} 11219 11220static void 11221ctl_failover(void) 11222{ 11223 struct ctl_lun *lun; 11224 struct ctl_softc *softc; 11225 union ctl_io *next_io, *pending_io; 11226 union ctl_io *io; 11227 int lun_idx; 11228 11229 softc = control_softc; 11230 11231 mtx_lock(&softc->ctl_lock); 11232 /* 11233 * Remove any cmds from the other SC from the rtr queue. These 11234 * will obviously only be for LUNs for which we're the primary. 11235 * We can't send status or get/send data for these commands. 11236 * Since they haven't been executed yet, we can just remove them. 11237 * We'll either abort them or delete them below, depending on 11238 * which HA mode we're in. 11239 */ 11240#ifdef notyet 11241 mtx_lock(&softc->queue_lock); 11242 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 11243 io != NULL; io = next_io) { 11244 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11245 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11246 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 11247 ctl_io_hdr, links); 11248 } 11249 mtx_unlock(&softc->queue_lock); 11250#endif 11251 11252 for (lun_idx=0; lun_idx < softc->num_luns; lun_idx++) { 11253 lun = softc->ctl_luns[lun_idx]; 11254 if (lun==NULL) 11255 continue; 11256 11257 /* 11258 * Processor LUNs are primary on both sides. 11259 * XXX will this always be true? 11260 */ 11261 if (lun->be_lun->lun_type == T_PROCESSOR) 11262 continue; 11263 11264 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11265 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11266 printf("FAILOVER: primary lun %d\n", lun_idx); 11267 /* 11268 * Remove all commands from the other SC. First from the 11269 * blocked queue then from the ooa queue. Once we have 11270 * removed them. Call ctl_check_blocked to see if there 11271 * is anything that can run. 11272 */ 11273 for (io = (union ctl_io *)TAILQ_FIRST( 11274 &lun->blocked_queue); io != NULL; io = next_io) { 11275 11276 next_io = (union ctl_io *)TAILQ_NEXT( 11277 &io->io_hdr, blocked_links); 11278 11279 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11280 TAILQ_REMOVE(&lun->blocked_queue, 11281 &io->io_hdr,blocked_links); 11282 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11283 TAILQ_REMOVE(&lun->ooa_queue, 11284 &io->io_hdr, ooa_links); 11285 11286 ctl_free_io(io); 11287 } 11288 } 11289 11290 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11291 io != NULL; io = next_io) { 11292 11293 next_io = (union ctl_io *)TAILQ_NEXT( 11294 &io->io_hdr, ooa_links); 11295 11296 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11297 11298 TAILQ_REMOVE(&lun->ooa_queue, 11299 &io->io_hdr, 11300 ooa_links); 11301 11302 ctl_free_io(io); 11303 } 11304 } 11305 ctl_check_blocked(lun); 11306 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11307 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11308 11309 printf("FAILOVER: primary lun %d\n", lun_idx); 11310 /* 11311 * Abort all commands from the other SC. We can't 11312 * send status back for them now. These should get 11313 * cleaned up when they are completed or come out 11314 * for a datamove operation. 11315 */ 11316 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11317 io != NULL; io = next_io) { 11318 next_io = (union ctl_io *)TAILQ_NEXT( 11319 &io->io_hdr, ooa_links); 11320 11321 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11322 io->io_hdr.flags |= CTL_FLAG_ABORT; 11323 } 11324 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11325 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11326 11327 printf("FAILOVER: secondary lun %d\n", lun_idx); 11328 11329 lun->flags |= CTL_LUN_PRIMARY_SC; 11330 11331 /* 11332 * We send all I/O that was sent to this controller 11333 * and redirected to the other side back with 11334 * busy status, and have the initiator retry it. 11335 * Figuring out how much data has been transferred, 11336 * etc. and picking up where we left off would be 11337 * very tricky. 11338 * 11339 * XXX KDM need to remove I/O from the blocked 11340 * queue as well! 11341 */ 11342 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11343 &lun->ooa_queue); pending_io != NULL; 11344 pending_io = next_io) { 11345 11346 next_io = (union ctl_io *)TAILQ_NEXT( 11347 &pending_io->io_hdr, ooa_links); 11348 11349 pending_io->io_hdr.flags &= 11350 ~CTL_FLAG_SENT_2OTHER_SC; 11351 11352 if (pending_io->io_hdr.flags & 11353 CTL_FLAG_IO_ACTIVE) { 11354 pending_io->io_hdr.flags |= 11355 CTL_FLAG_FAILOVER; 11356 } else { 11357 ctl_set_busy(&pending_io->scsiio); 11358 ctl_done(pending_io); 11359 } 11360 } 11361 11362 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11363 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11364 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11365 printf("FAILOVER: secondary lun %d\n", lun_idx); 11366 /* 11367 * if the first io on the OOA is not on the RtR queue 11368 * add it. 11369 */ 11370 lun->flags |= CTL_LUN_PRIMARY_SC; 11371 11372 pending_io = (union ctl_io *)TAILQ_FIRST( 11373 &lun->ooa_queue); 11374 if (pending_io==NULL) { 11375 printf("Nothing on OOA queue\n"); 11376 continue; 11377 } 11378 11379 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11380 if ((pending_io->io_hdr.flags & 11381 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11382 pending_io->io_hdr.flags |= 11383 CTL_FLAG_IS_WAS_ON_RTR; 11384 ctl_enqueue_rtr(pending_io); 11385 } 11386#if 0 11387 else 11388 { 11389 printf("Tag 0x%04x is running\n", 11390 pending_io->scsiio.tag_num); 11391 } 11392#endif 11393 11394 next_io = (union ctl_io *)TAILQ_NEXT( 11395 &pending_io->io_hdr, ooa_links); 11396 for (pending_io=next_io; pending_io != NULL; 11397 pending_io = next_io) { 11398 pending_io->io_hdr.flags &= 11399 ~CTL_FLAG_SENT_2OTHER_SC; 11400 next_io = (union ctl_io *)TAILQ_NEXT( 11401 &pending_io->io_hdr, ooa_links); 11402 if (pending_io->io_hdr.flags & 11403 CTL_FLAG_IS_WAS_ON_RTR) { 11404#if 0 11405 printf("Tag 0x%04x is running\n", 11406 pending_io->scsiio.tag_num); 11407#endif 11408 continue; 11409 } 11410 11411 switch (ctl_check_ooa(lun, pending_io, 11412 (union ctl_io *)TAILQ_PREV( 11413 &pending_io->io_hdr, ctl_ooaq, 11414 ooa_links))) { 11415 11416 case CTL_ACTION_BLOCK: 11417 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11418 &pending_io->io_hdr, 11419 blocked_links); 11420 pending_io->io_hdr.flags |= 11421 CTL_FLAG_BLOCKED; 11422 break; 11423 case CTL_ACTION_PASS: 11424 case CTL_ACTION_SKIP: 11425 pending_io->io_hdr.flags |= 11426 CTL_FLAG_IS_WAS_ON_RTR; 11427 ctl_enqueue_rtr(pending_io); 11428 break; 11429 case CTL_ACTION_OVERLAP: 11430 ctl_set_overlapped_cmd( 11431 (struct ctl_scsiio *)pending_io); 11432 ctl_done(pending_io); 11433 break; 11434 case CTL_ACTION_OVERLAP_TAG: 11435 ctl_set_overlapped_tag( 11436 (struct ctl_scsiio *)pending_io, 11437 pending_io->scsiio.tag_num & 0xff); 11438 ctl_done(pending_io); 11439 break; 11440 case CTL_ACTION_ERROR: 11441 default: 11442 ctl_set_internal_failure( 11443 (struct ctl_scsiio *)pending_io, 11444 0, // sks_valid 11445 0); //retry count 11446 ctl_done(pending_io); 11447 break; 11448 } 11449 } 11450 11451 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11452 } else { 11453 panic("Unhandled HA mode failover, LUN flags = %#x, " 11454 "ha_mode = #%x", lun->flags, softc->ha_mode); 11455 } 11456 } 11457 ctl_pause_rtr = 0; 11458 mtx_unlock(&softc->ctl_lock); 11459} 11460 11461static int 11462ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11463{ 11464 struct ctl_lun *lun; 11465 const struct ctl_cmd_entry *entry; 11466 uint32_t initidx, targ_lun; 11467 int retval; 11468 11469 retval = 0; 11470 11471 lun = NULL; 11472 11473 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11474 if ((targ_lun < CTL_MAX_LUNS) 11475 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11476 /* 11477 * If the LUN is invalid, pretend that it doesn't exist. 11478 * It will go away as soon as all pending I/O has been 11479 * completed. 11480 */ 11481 mtx_lock(&lun->lun_lock); 11482 if (lun->flags & CTL_LUN_DISABLED) { 11483 mtx_unlock(&lun->lun_lock); 11484 lun = NULL; 11485 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11486 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11487 } else { 11488 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11489 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11490 lun->be_lun; 11491 if (lun->be_lun->lun_type == T_PROCESSOR) { 11492 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11493 } 11494 11495 /* 11496 * Every I/O goes into the OOA queue for a 11497 * particular LUN, and stays there until completion. 11498 */ 11499 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11500 ooa_links); 11501 } 11502 } else { 11503 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11504 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11505 } 11506 11507 /* Get command entry and return error if it is unsuppotyed. */ 11508 entry = ctl_validate_command(ctsio); 11509 if (entry == NULL) { 11510 if (lun) 11511 mtx_unlock(&lun->lun_lock); 11512 return (retval); 11513 } 11514 11515 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11516 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11517 11518 /* 11519 * Check to see whether we can send this command to LUNs that don't 11520 * exist. This should pretty much only be the case for inquiry 11521 * and request sense. Further checks, below, really require having 11522 * a LUN, so we can't really check the command anymore. Just put 11523 * it on the rtr queue. 11524 */ 11525 if (lun == NULL) { 11526 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11527 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11528 ctl_enqueue_rtr((union ctl_io *)ctsio); 11529 return (retval); 11530 } 11531 11532 ctl_set_unsupported_lun(ctsio); 11533 ctl_done((union ctl_io *)ctsio); 11534 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11535 return (retval); 11536 } else { 11537 /* 11538 * Make sure we support this particular command on this LUN. 11539 * e.g., we don't support writes to the control LUN. 11540 */ 11541 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11542 mtx_unlock(&lun->lun_lock); 11543 ctl_set_invalid_opcode(ctsio); 11544 ctl_done((union ctl_io *)ctsio); 11545 return (retval); 11546 } 11547 } 11548 11549 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11550 11551#ifdef CTL_WITH_CA 11552 /* 11553 * If we've got a request sense, it'll clear the contingent 11554 * allegiance condition. Otherwise, if we have a CA condition for 11555 * this initiator, clear it, because it sent down a command other 11556 * than request sense. 11557 */ 11558 if ((ctsio->cdb[0] != REQUEST_SENSE) 11559 && (ctl_is_set(lun->have_ca, initidx))) 11560 ctl_clear_mask(lun->have_ca, initidx); 11561#endif 11562 11563 /* 11564 * If the command has this flag set, it handles its own unit 11565 * attention reporting, we shouldn't do anything. Otherwise we 11566 * check for any pending unit attentions, and send them back to the 11567 * initiator. We only do this when a command initially comes in, 11568 * not when we pull it off the blocked queue. 11569 * 11570 * According to SAM-3, section 5.3.2, the order that things get 11571 * presented back to the host is basically unit attentions caused 11572 * by some sort of reset event, busy status, reservation conflicts 11573 * or task set full, and finally any other status. 11574 * 11575 * One issue here is that some of the unit attentions we report 11576 * don't fall into the "reset" category (e.g. "reported luns data 11577 * has changed"). So reporting it here, before the reservation 11578 * check, may be technically wrong. I guess the only thing to do 11579 * would be to check for and report the reset events here, and then 11580 * check for the other unit attention types after we check for a 11581 * reservation conflict. 11582 * 11583 * XXX KDM need to fix this 11584 */ 11585 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11586 ctl_ua_type ua_type; 11587 scsi_sense_data_type sense_format; 11588 11589 if (lun->flags & CTL_LUN_SENSE_DESC) 11590 sense_format = SSD_TYPE_DESC; 11591 else 11592 sense_format = SSD_TYPE_FIXED; 11593 11594 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11595 sense_format); 11596 if (ua_type != CTL_UA_NONE) { 11597 mtx_unlock(&lun->lun_lock); 11598 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11599 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11600 ctsio->sense_len = SSD_FULL_SIZE; 11601 ctl_done((union ctl_io *)ctsio); 11602 return (retval); 11603 } 11604 } 11605 11606 11607 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11608 mtx_unlock(&lun->lun_lock); 11609 ctl_done((union ctl_io *)ctsio); 11610 return (retval); 11611 } 11612 11613 /* 11614 * XXX CHD this is where we want to send IO to other side if 11615 * this LUN is secondary on this SC. We will need to make a copy 11616 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11617 * the copy we send as FROM_OTHER. 11618 * We also need to stuff the address of the original IO so we can 11619 * find it easily. Something similar will need be done on the other 11620 * side so when we are done we can find the copy. 11621 */ 11622 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11623 union ctl_ha_msg msg_info; 11624 int isc_retval; 11625 11626 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11627 11628 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11629 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11630#if 0 11631 printf("1. ctsio %p\n", ctsio); 11632#endif 11633 msg_info.hdr.serializing_sc = NULL; 11634 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11635 msg_info.scsi.tag_num = ctsio->tag_num; 11636 msg_info.scsi.tag_type = ctsio->tag_type; 11637 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11638 11639 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11640 11641 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11642 (void *)&msg_info, sizeof(msg_info), 0)) > 11643 CTL_HA_STATUS_SUCCESS) { 11644 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11645 isc_retval); 11646 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11647 } else { 11648#if 0 11649 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11650#endif 11651 } 11652 11653 /* 11654 * XXX KDM this I/O is off the incoming queue, but hasn't 11655 * been inserted on any other queue. We may need to come 11656 * up with a holding queue while we wait for serialization 11657 * so that we have an idea of what we're waiting for from 11658 * the other side. 11659 */ 11660 mtx_unlock(&lun->lun_lock); 11661 return (retval); 11662 } 11663 11664 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11665 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11666 ctl_ooaq, ooa_links))) { 11667 case CTL_ACTION_BLOCK: 11668 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11669 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11670 blocked_links); 11671 mtx_unlock(&lun->lun_lock); 11672 return (retval); 11673 case CTL_ACTION_PASS: 11674 case CTL_ACTION_SKIP: 11675 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11676 mtx_unlock(&lun->lun_lock); 11677 ctl_enqueue_rtr((union ctl_io *)ctsio); 11678 break; 11679 case CTL_ACTION_OVERLAP: 11680 mtx_unlock(&lun->lun_lock); 11681 ctl_set_overlapped_cmd(ctsio); 11682 ctl_done((union ctl_io *)ctsio); 11683 break; 11684 case CTL_ACTION_OVERLAP_TAG: 11685 mtx_unlock(&lun->lun_lock); 11686 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11687 ctl_done((union ctl_io *)ctsio); 11688 break; 11689 case CTL_ACTION_ERROR: 11690 default: 11691 mtx_unlock(&lun->lun_lock); 11692 ctl_set_internal_failure(ctsio, 11693 /*sks_valid*/ 0, 11694 /*retry_count*/ 0); 11695 ctl_done((union ctl_io *)ctsio); 11696 break; 11697 } 11698 return (retval); 11699} 11700 11701const struct ctl_cmd_entry * 11702ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11703{ 11704 const struct ctl_cmd_entry *entry; 11705 int service_action; 11706 11707 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11708 if (sa) 11709 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11710 if (entry->flags & CTL_CMD_FLAG_SA5) { 11711 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11712 entry = &((const struct ctl_cmd_entry *) 11713 entry->execute)[service_action]; 11714 } 11715 return (entry); 11716} 11717 11718const struct ctl_cmd_entry * 11719ctl_validate_command(struct ctl_scsiio *ctsio) 11720{ 11721 const struct ctl_cmd_entry *entry; 11722 int i, sa; 11723 uint8_t diff; 11724 11725 entry = ctl_get_cmd_entry(ctsio, &sa); 11726 if (entry->execute == NULL) { 11727 if (sa) 11728 ctl_set_invalid_field(ctsio, 11729 /*sks_valid*/ 1, 11730 /*command*/ 1, 11731 /*field*/ 1, 11732 /*bit_valid*/ 1, 11733 /*bit*/ 4); 11734 else 11735 ctl_set_invalid_opcode(ctsio); 11736 ctl_done((union ctl_io *)ctsio); 11737 return (NULL); 11738 } 11739 KASSERT(entry->length > 0, 11740 ("Not defined length for command 0x%02x/0x%02x", 11741 ctsio->cdb[0], ctsio->cdb[1])); 11742 for (i = 1; i < entry->length; i++) { 11743 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11744 if (diff == 0) 11745 continue; 11746 ctl_set_invalid_field(ctsio, 11747 /*sks_valid*/ 1, 11748 /*command*/ 1, 11749 /*field*/ i, 11750 /*bit_valid*/ 1, 11751 /*bit*/ fls(diff) - 1); 11752 ctl_done((union ctl_io *)ctsio); 11753 return (NULL); 11754 } 11755 return (entry); 11756} 11757 11758static int 11759ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11760{ 11761 11762 switch (lun_type) { 11763 case T_PROCESSOR: 11764 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11765 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11766 return (0); 11767 break; 11768 case T_DIRECT: 11769 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11770 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11771 return (0); 11772 break; 11773 default: 11774 return (0); 11775 } 11776 return (1); 11777} 11778 11779static int 11780ctl_scsiio(struct ctl_scsiio *ctsio) 11781{ 11782 int retval; 11783 const struct ctl_cmd_entry *entry; 11784 11785 retval = CTL_RETVAL_COMPLETE; 11786 11787 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11788 11789 entry = ctl_get_cmd_entry(ctsio, NULL); 11790 11791 /* 11792 * If this I/O has been aborted, just send it straight to 11793 * ctl_done() without executing it. 11794 */ 11795 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11796 ctl_done((union ctl_io *)ctsio); 11797 goto bailout; 11798 } 11799 11800 /* 11801 * All the checks should have been handled by ctl_scsiio_precheck(). 11802 * We should be clear now to just execute the I/O. 11803 */ 11804 retval = entry->execute(ctsio); 11805 11806bailout: 11807 return (retval); 11808} 11809 11810/* 11811 * Since we only implement one target right now, a bus reset simply resets 11812 * our single target. 11813 */ 11814static int 11815ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11816{ 11817 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11818} 11819 11820static int 11821ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11822 ctl_ua_type ua_type) 11823{ 11824 struct ctl_lun *lun; 11825 int retval; 11826 11827 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11828 union ctl_ha_msg msg_info; 11829 11830 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11831 msg_info.hdr.nexus = io->io_hdr.nexus; 11832 if (ua_type==CTL_UA_TARG_RESET) 11833 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11834 else 11835 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11836 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11837 msg_info.hdr.original_sc = NULL; 11838 msg_info.hdr.serializing_sc = NULL; 11839 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11840 (void *)&msg_info, sizeof(msg_info), 0)) { 11841 } 11842 } 11843 retval = 0; 11844 11845 mtx_lock(&softc->ctl_lock); 11846 STAILQ_FOREACH(lun, &softc->lun_list, links) 11847 retval += ctl_lun_reset(lun, io, ua_type); 11848 mtx_unlock(&softc->ctl_lock); 11849 11850 return (retval); 11851} 11852 11853/* 11854 * The LUN should always be set. The I/O is optional, and is used to 11855 * distinguish between I/Os sent by this initiator, and by other 11856 * initiators. We set unit attention for initiators other than this one. 11857 * SAM-3 is vague on this point. It does say that a unit attention should 11858 * be established for other initiators when a LUN is reset (see section 11859 * 5.7.3), but it doesn't specifically say that the unit attention should 11860 * be established for this particular initiator when a LUN is reset. Here 11861 * is the relevant text, from SAM-3 rev 8: 11862 * 11863 * 5.7.2 When a SCSI initiator port aborts its own tasks 11864 * 11865 * When a SCSI initiator port causes its own task(s) to be aborted, no 11866 * notification that the task(s) have been aborted shall be returned to 11867 * the SCSI initiator port other than the completion response for the 11868 * command or task management function action that caused the task(s) to 11869 * be aborted and notification(s) associated with related effects of the 11870 * action (e.g., a reset unit attention condition). 11871 * 11872 * XXX KDM for now, we're setting unit attention for all initiators. 11873 */ 11874static int 11875ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11876{ 11877 union ctl_io *xio; 11878#if 0 11879 uint32_t initidx; 11880#endif 11881#ifdef CTL_WITH_CA 11882 int i; 11883#endif 11884 11885 mtx_lock(&lun->lun_lock); 11886 /* 11887 * Run through the OOA queue and abort each I/O. 11888 */ 11889#if 0 11890 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11891#endif 11892 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11893 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11894 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11895 } 11896 11897 /* 11898 * This version sets unit attention for every 11899 */ 11900#if 0 11901 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11902 ctl_est_ua_all(lun, initidx, ua_type); 11903#else 11904 ctl_est_ua_all(lun, -1, ua_type); 11905#endif 11906 11907 /* 11908 * A reset (any kind, really) clears reservations established with 11909 * RESERVE/RELEASE. It does not clear reservations established 11910 * with PERSISTENT RESERVE OUT, but we don't support that at the 11911 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11912 * reservations made with the RESERVE/RELEASE commands, because 11913 * those commands are obsolete in SPC-3. 11914 */ 11915 lun->flags &= ~CTL_LUN_RESERVED; 11916 11917#ifdef CTL_WITH_CA 11918 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11919 ctl_clear_mask(lun->have_ca, i); 11920#endif 11921 mtx_unlock(&lun->lun_lock); 11922 11923 return (0); 11924} 11925 11926static void 11927ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11928 int other_sc) 11929{ 11930 union ctl_io *xio; 11931 11932 mtx_assert(&lun->lun_lock, MA_OWNED); 11933 11934 /* 11935 * Run through the OOA queue and attempt to find the given I/O. 11936 * The target port, initiator ID, tag type and tag number have to 11937 * match the values that we got from the initiator. If we have an 11938 * untagged command to abort, simply abort the first untagged command 11939 * we come to. We only allow one untagged command at a time of course. 11940 */ 11941 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11942 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11943 11944 if ((targ_port == UINT32_MAX || 11945 targ_port == xio->io_hdr.nexus.targ_port) && 11946 (init_id == UINT32_MAX || 11947 init_id == xio->io_hdr.nexus.initid.id)) { 11948 if (targ_port != xio->io_hdr.nexus.targ_port || 11949 init_id != xio->io_hdr.nexus.initid.id) 11950 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11951 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11952 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11953 union ctl_ha_msg msg_info; 11954 11955 msg_info.hdr.nexus = xio->io_hdr.nexus; 11956 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11957 msg_info.task.tag_num = xio->scsiio.tag_num; 11958 msg_info.task.tag_type = xio->scsiio.tag_type; 11959 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11960 msg_info.hdr.original_sc = NULL; 11961 msg_info.hdr.serializing_sc = NULL; 11962 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11963 (void *)&msg_info, sizeof(msg_info), 0); 11964 } 11965 } 11966 } 11967} 11968 11969static int 11970ctl_abort_task_set(union ctl_io *io) 11971{ 11972 struct ctl_softc *softc = control_softc; 11973 struct ctl_lun *lun; 11974 uint32_t targ_lun; 11975 11976 /* 11977 * Look up the LUN. 11978 */ 11979 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11980 mtx_lock(&softc->ctl_lock); 11981 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11982 lun = softc->ctl_luns[targ_lun]; 11983 else { 11984 mtx_unlock(&softc->ctl_lock); 11985 return (1); 11986 } 11987 11988 mtx_lock(&lun->lun_lock); 11989 mtx_unlock(&softc->ctl_lock); 11990 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11991 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11992 io->io_hdr.nexus.initid.id, 11993 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11994 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11995 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11996 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11997 } 11998 mtx_unlock(&lun->lun_lock); 11999 return (0); 12000} 12001 12002static int 12003ctl_i_t_nexus_reset(union ctl_io *io) 12004{ 12005 struct ctl_softc *softc = control_softc; 12006 struct ctl_lun *lun; 12007 uint32_t initidx, residx; 12008 12009 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12010 residx = ctl_get_resindex(&io->io_hdr.nexus); 12011 mtx_lock(&softc->ctl_lock); 12012 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12013 mtx_lock(&lun->lun_lock); 12014 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12015 io->io_hdr.nexus.initid.id, 12016 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12017#ifdef CTL_WITH_CA 12018 ctl_clear_mask(lun->have_ca, initidx); 12019#endif 12020 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12021 lun->flags &= ~CTL_LUN_RESERVED; 12022 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12023 mtx_unlock(&lun->lun_lock); 12024 } 12025 mtx_unlock(&softc->ctl_lock); 12026 return (0); 12027} 12028 12029static int 12030ctl_abort_task(union ctl_io *io) 12031{ 12032 union ctl_io *xio; 12033 struct ctl_lun *lun; 12034 struct ctl_softc *softc; 12035#if 0 12036 struct sbuf sb; 12037 char printbuf[128]; 12038#endif 12039 int found; 12040 uint32_t targ_lun; 12041 12042 softc = control_softc; 12043 found = 0; 12044 12045 /* 12046 * Look up the LUN. 12047 */ 12048 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12049 mtx_lock(&softc->ctl_lock); 12050 if ((targ_lun < CTL_MAX_LUNS) 12051 && (softc->ctl_luns[targ_lun] != NULL)) 12052 lun = softc->ctl_luns[targ_lun]; 12053 else { 12054 mtx_unlock(&softc->ctl_lock); 12055 return (1); 12056 } 12057 12058#if 0 12059 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12060 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12061#endif 12062 12063 mtx_lock(&lun->lun_lock); 12064 mtx_unlock(&softc->ctl_lock); 12065 /* 12066 * Run through the OOA queue and attempt to find the given I/O. 12067 * The target port, initiator ID, tag type and tag number have to 12068 * match the values that we got from the initiator. If we have an 12069 * untagged command to abort, simply abort the first untagged command 12070 * we come to. We only allow one untagged command at a time of course. 12071 */ 12072#if 0 12073 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12074#endif 12075 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12076 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12077#if 0 12078 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12079 12080 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12081 lun->lun, xio->scsiio.tag_num, 12082 xio->scsiio.tag_type, 12083 (xio->io_hdr.blocked_links.tqe_prev 12084 == NULL) ? "" : " BLOCKED", 12085 (xio->io_hdr.flags & 12086 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12087 (xio->io_hdr.flags & 12088 CTL_FLAG_ABORT) ? " ABORT" : "", 12089 (xio->io_hdr.flags & 12090 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12091 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12092 sbuf_finish(&sb); 12093 printf("%s\n", sbuf_data(&sb)); 12094#endif 12095 12096 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12097 && (xio->io_hdr.nexus.initid.id == 12098 io->io_hdr.nexus.initid.id)) { 12099 /* 12100 * If the abort says that the task is untagged, the 12101 * task in the queue must be untagged. Otherwise, 12102 * we just check to see whether the tag numbers 12103 * match. This is because the QLogic firmware 12104 * doesn't pass back the tag type in an abort 12105 * request. 12106 */ 12107#if 0 12108 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12109 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12110 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12111#endif 12112 /* 12113 * XXX KDM we've got problems with FC, because it 12114 * doesn't send down a tag type with aborts. So we 12115 * can only really go by the tag number... 12116 * This may cause problems with parallel SCSI. 12117 * Need to figure that out!! 12118 */ 12119 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12120 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12121 found = 1; 12122 if ((io->io_hdr.flags & 12123 CTL_FLAG_FROM_OTHER_SC) == 0 && 12124 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12125 union ctl_ha_msg msg_info; 12126 12127 io->io_hdr.flags |= 12128 CTL_FLAG_SENT_2OTHER_SC; 12129 msg_info.hdr.nexus = io->io_hdr.nexus; 12130 msg_info.task.task_action = 12131 CTL_TASK_ABORT_TASK; 12132 msg_info.task.tag_num = 12133 io->taskio.tag_num; 12134 msg_info.task.tag_type = 12135 io->taskio.tag_type; 12136 msg_info.hdr.msg_type = 12137 CTL_MSG_MANAGE_TASKS; 12138 msg_info.hdr.original_sc = NULL; 12139 msg_info.hdr.serializing_sc = NULL; 12140#if 0 12141 printf("Sent Abort to other side\n"); 12142#endif 12143 if (CTL_HA_STATUS_SUCCESS != 12144 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12145 (void *)&msg_info, 12146 sizeof(msg_info), 0)) { 12147 } 12148 } 12149#if 0 12150 printf("ctl_abort_task: found I/O to abort\n"); 12151#endif 12152 break; 12153 } 12154 } 12155 } 12156 mtx_unlock(&lun->lun_lock); 12157 12158 if (found == 0) { 12159 /* 12160 * This isn't really an error. It's entirely possible for 12161 * the abort and command completion to cross on the wire. 12162 * This is more of an informative/diagnostic error. 12163 */ 12164#if 0 12165 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12166 "%d:%d:%d:%d tag %d type %d\n", 12167 io->io_hdr.nexus.initid.id, 12168 io->io_hdr.nexus.targ_port, 12169 io->io_hdr.nexus.targ_target.id, 12170 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12171 io->taskio.tag_type); 12172#endif 12173 } 12174 return (0); 12175} 12176 12177static void 12178ctl_run_task(union ctl_io *io) 12179{ 12180 struct ctl_softc *softc = control_softc; 12181 int retval = 1; 12182 const char *task_desc; 12183 12184 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12185 12186 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12187 ("ctl_run_task: Unextected io_type %d\n", 12188 io->io_hdr.io_type)); 12189 12190 task_desc = ctl_scsi_task_string(&io->taskio); 12191 if (task_desc != NULL) { 12192#ifdef NEEDTOPORT 12193 csevent_log(CSC_CTL | CSC_SHELF_SW | 12194 CTL_TASK_REPORT, 12195 csevent_LogType_Trace, 12196 csevent_Severity_Information, 12197 csevent_AlertLevel_Green, 12198 csevent_FRU_Firmware, 12199 csevent_FRU_Unknown, 12200 "CTL: received task: %s",task_desc); 12201#endif 12202 } else { 12203#ifdef NEEDTOPORT 12204 csevent_log(CSC_CTL | CSC_SHELF_SW | 12205 CTL_TASK_REPORT, 12206 csevent_LogType_Trace, 12207 csevent_Severity_Information, 12208 csevent_AlertLevel_Green, 12209 csevent_FRU_Firmware, 12210 csevent_FRU_Unknown, 12211 "CTL: received unknown task " 12212 "type: %d (%#x)", 12213 io->taskio.task_action, 12214 io->taskio.task_action); 12215#endif 12216 } 12217 switch (io->taskio.task_action) { 12218 case CTL_TASK_ABORT_TASK: 12219 retval = ctl_abort_task(io); 12220 break; 12221 case CTL_TASK_ABORT_TASK_SET: 12222 case CTL_TASK_CLEAR_TASK_SET: 12223 retval = ctl_abort_task_set(io); 12224 break; 12225 case CTL_TASK_CLEAR_ACA: 12226 break; 12227 case CTL_TASK_I_T_NEXUS_RESET: 12228 retval = ctl_i_t_nexus_reset(io); 12229 break; 12230 case CTL_TASK_LUN_RESET: { 12231 struct ctl_lun *lun; 12232 uint32_t targ_lun; 12233 12234 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12235 mtx_lock(&softc->ctl_lock); 12236 if ((targ_lun < CTL_MAX_LUNS) 12237 && (softc->ctl_luns[targ_lun] != NULL)) 12238 lun = softc->ctl_luns[targ_lun]; 12239 else { 12240 mtx_unlock(&softc->ctl_lock); 12241 retval = 1; 12242 break; 12243 } 12244 12245 if (!(io->io_hdr.flags & 12246 CTL_FLAG_FROM_OTHER_SC)) { 12247 union ctl_ha_msg msg_info; 12248 12249 io->io_hdr.flags |= 12250 CTL_FLAG_SENT_2OTHER_SC; 12251 msg_info.hdr.msg_type = 12252 CTL_MSG_MANAGE_TASKS; 12253 msg_info.hdr.nexus = io->io_hdr.nexus; 12254 msg_info.task.task_action = 12255 CTL_TASK_LUN_RESET; 12256 msg_info.hdr.original_sc = NULL; 12257 msg_info.hdr.serializing_sc = NULL; 12258 if (CTL_HA_STATUS_SUCCESS != 12259 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12260 (void *)&msg_info, 12261 sizeof(msg_info), 0)) { 12262 } 12263 } 12264 12265 retval = ctl_lun_reset(lun, io, 12266 CTL_UA_LUN_RESET); 12267 mtx_unlock(&softc->ctl_lock); 12268 break; 12269 } 12270 case CTL_TASK_TARGET_RESET: 12271 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12272 break; 12273 case CTL_TASK_BUS_RESET: 12274 retval = ctl_bus_reset(softc, io); 12275 break; 12276 case CTL_TASK_PORT_LOGIN: 12277 break; 12278 case CTL_TASK_PORT_LOGOUT: 12279 break; 12280 default: 12281 printf("ctl_run_task: got unknown task management event %d\n", 12282 io->taskio.task_action); 12283 break; 12284 } 12285 if (retval == 0) 12286 io->io_hdr.status = CTL_SUCCESS; 12287 else 12288 io->io_hdr.status = CTL_ERROR; 12289 ctl_done(io); 12290} 12291 12292/* 12293 * For HA operation. Handle commands that come in from the other 12294 * controller. 12295 */ 12296static void 12297ctl_handle_isc(union ctl_io *io) 12298{ 12299 int free_io; 12300 struct ctl_lun *lun; 12301 struct ctl_softc *softc; 12302 uint32_t targ_lun; 12303 12304 softc = control_softc; 12305 12306 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12307 lun = softc->ctl_luns[targ_lun]; 12308 12309 switch (io->io_hdr.msg_type) { 12310 case CTL_MSG_SERIALIZE: 12311 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12312 break; 12313 case CTL_MSG_R2R: { 12314 const struct ctl_cmd_entry *entry; 12315 12316 /* 12317 * This is only used in SER_ONLY mode. 12318 */ 12319 free_io = 0; 12320 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12321 mtx_lock(&lun->lun_lock); 12322 if (ctl_scsiio_lun_check(lun, 12323 entry, (struct ctl_scsiio *)io) != 0) { 12324 mtx_unlock(&lun->lun_lock); 12325 ctl_done(io); 12326 break; 12327 } 12328 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12329 mtx_unlock(&lun->lun_lock); 12330 ctl_enqueue_rtr(io); 12331 break; 12332 } 12333 case CTL_MSG_FINISH_IO: 12334 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12335 free_io = 0; 12336 ctl_done(io); 12337 } else { 12338 free_io = 1; 12339 mtx_lock(&lun->lun_lock); 12340 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12341 ooa_links); 12342 ctl_check_blocked(lun); 12343 mtx_unlock(&lun->lun_lock); 12344 } 12345 break; 12346 case CTL_MSG_PERS_ACTION: 12347 ctl_hndl_per_res_out_on_other_sc( 12348 (union ctl_ha_msg *)&io->presio.pr_msg); 12349 free_io = 1; 12350 break; 12351 case CTL_MSG_BAD_JUJU: 12352 free_io = 0; 12353 ctl_done(io); 12354 break; 12355 case CTL_MSG_DATAMOVE: 12356 /* Only used in XFER mode */ 12357 free_io = 0; 12358 ctl_datamove_remote(io); 12359 break; 12360 case CTL_MSG_DATAMOVE_DONE: 12361 /* Only used in XFER mode */ 12362 free_io = 0; 12363 io->scsiio.be_move_done(io); 12364 break; 12365 default: 12366 free_io = 1; 12367 printf("%s: Invalid message type %d\n", 12368 __func__, io->io_hdr.msg_type); 12369 break; 12370 } 12371 if (free_io) 12372 ctl_free_io(io); 12373 12374} 12375 12376 12377/* 12378 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12379 * there is no match. 12380 */ 12381static ctl_lun_error_pattern 12382ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12383{ 12384 const struct ctl_cmd_entry *entry; 12385 ctl_lun_error_pattern filtered_pattern, pattern; 12386 12387 pattern = desc->error_pattern; 12388 12389 /* 12390 * XXX KDM we need more data passed into this function to match a 12391 * custom pattern, and we actually need to implement custom pattern 12392 * matching. 12393 */ 12394 if (pattern & CTL_LUN_PAT_CMD) 12395 return (CTL_LUN_PAT_CMD); 12396 12397 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12398 return (CTL_LUN_PAT_ANY); 12399 12400 entry = ctl_get_cmd_entry(ctsio, NULL); 12401 12402 filtered_pattern = entry->pattern & pattern; 12403 12404 /* 12405 * If the user requested specific flags in the pattern (e.g. 12406 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12407 * flags. 12408 * 12409 * If the user did not specify any flags, it doesn't matter whether 12410 * or not the command supports the flags. 12411 */ 12412 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12413 (pattern & ~CTL_LUN_PAT_MASK)) 12414 return (CTL_LUN_PAT_NONE); 12415 12416 /* 12417 * If the user asked for a range check, see if the requested LBA 12418 * range overlaps with this command's LBA range. 12419 */ 12420 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12421 uint64_t lba1; 12422 uint64_t len1; 12423 ctl_action action; 12424 int retval; 12425 12426 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12427 if (retval != 0) 12428 return (CTL_LUN_PAT_NONE); 12429 12430 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12431 desc->lba_range.len, FALSE); 12432 /* 12433 * A "pass" means that the LBA ranges don't overlap, so 12434 * this doesn't match the user's range criteria. 12435 */ 12436 if (action == CTL_ACTION_PASS) 12437 return (CTL_LUN_PAT_NONE); 12438 } 12439 12440 return (filtered_pattern); 12441} 12442 12443static void 12444ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12445{ 12446 struct ctl_error_desc *desc, *desc2; 12447 12448 mtx_assert(&lun->lun_lock, MA_OWNED); 12449 12450 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12451 ctl_lun_error_pattern pattern; 12452 /* 12453 * Check to see whether this particular command matches 12454 * the pattern in the descriptor. 12455 */ 12456 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12457 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12458 continue; 12459 12460 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12461 case CTL_LUN_INJ_ABORTED: 12462 ctl_set_aborted(&io->scsiio); 12463 break; 12464 case CTL_LUN_INJ_MEDIUM_ERR: 12465 ctl_set_medium_error(&io->scsiio); 12466 break; 12467 case CTL_LUN_INJ_UA: 12468 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12469 * OCCURRED */ 12470 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12471 break; 12472 case CTL_LUN_INJ_CUSTOM: 12473 /* 12474 * We're assuming the user knows what he is doing. 12475 * Just copy the sense information without doing 12476 * checks. 12477 */ 12478 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12479 MIN(sizeof(desc->custom_sense), 12480 sizeof(io->scsiio.sense_data))); 12481 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12482 io->scsiio.sense_len = SSD_FULL_SIZE; 12483 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12484 break; 12485 case CTL_LUN_INJ_NONE: 12486 default: 12487 /* 12488 * If this is an error injection type we don't know 12489 * about, clear the continuous flag (if it is set) 12490 * so it will get deleted below. 12491 */ 12492 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12493 break; 12494 } 12495 /* 12496 * By default, each error injection action is a one-shot 12497 */ 12498 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12499 continue; 12500 12501 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12502 12503 free(desc, M_CTL); 12504 } 12505} 12506 12507#ifdef CTL_IO_DELAY 12508static void 12509ctl_datamove_timer_wakeup(void *arg) 12510{ 12511 union ctl_io *io; 12512 12513 io = (union ctl_io *)arg; 12514 12515 ctl_datamove(io); 12516} 12517#endif /* CTL_IO_DELAY */ 12518 12519void 12520ctl_datamove(union ctl_io *io) 12521{ 12522 void (*fe_datamove)(union ctl_io *io); 12523 12524 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12525 12526 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12527 12528#ifdef CTL_TIME_IO 12529 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12530 char str[256]; 12531 char path_str[64]; 12532 struct sbuf sb; 12533 12534 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12535 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12536 12537 sbuf_cat(&sb, path_str); 12538 switch (io->io_hdr.io_type) { 12539 case CTL_IO_SCSI: 12540 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12541 sbuf_printf(&sb, "\n"); 12542 sbuf_cat(&sb, path_str); 12543 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12544 io->scsiio.tag_num, io->scsiio.tag_type); 12545 break; 12546 case CTL_IO_TASK: 12547 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12548 "Tag Type: %d\n", io->taskio.task_action, 12549 io->taskio.tag_num, io->taskio.tag_type); 12550 break; 12551 default: 12552 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12553 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12554 break; 12555 } 12556 sbuf_cat(&sb, path_str); 12557 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12558 (intmax_t)time_uptime - io->io_hdr.start_time); 12559 sbuf_finish(&sb); 12560 printf("%s", sbuf_data(&sb)); 12561 } 12562#endif /* CTL_TIME_IO */ 12563 12564#ifdef CTL_IO_DELAY 12565 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12566 struct ctl_lun *lun; 12567 12568 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12569 12570 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12571 } else { 12572 struct ctl_lun *lun; 12573 12574 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12575 if ((lun != NULL) 12576 && (lun->delay_info.datamove_delay > 0)) { 12577 struct callout *callout; 12578 12579 callout = (struct callout *)&io->io_hdr.timer_bytes; 12580 callout_init(callout, /*mpsafe*/ 1); 12581 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12582 callout_reset(callout, 12583 lun->delay_info.datamove_delay * hz, 12584 ctl_datamove_timer_wakeup, io); 12585 if (lun->delay_info.datamove_type == 12586 CTL_DELAY_TYPE_ONESHOT) 12587 lun->delay_info.datamove_delay = 0; 12588 return; 12589 } 12590 } 12591#endif 12592 12593 /* 12594 * This command has been aborted. Set the port status, so we fail 12595 * the data move. 12596 */ 12597 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12598 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12599 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12600 io->io_hdr.nexus.targ_port, 12601 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12602 io->io_hdr.nexus.targ_lun); 12603 io->io_hdr.port_status = 31337; 12604 /* 12605 * Note that the backend, in this case, will get the 12606 * callback in its context. In other cases it may get 12607 * called in the frontend's interrupt thread context. 12608 */ 12609 io->scsiio.be_move_done(io); 12610 return; 12611 } 12612 12613 /* Don't confuse frontend with zero length data move. */ 12614 if (io->scsiio.kern_data_len == 0) { 12615 io->scsiio.be_move_done(io); 12616 return; 12617 } 12618 12619 /* 12620 * If we're in XFER mode and this I/O is from the other shelf 12621 * controller, we need to send the DMA to the other side to 12622 * actually transfer the data to/from the host. In serialize only 12623 * mode the transfer happens below CTL and ctl_datamove() is only 12624 * called on the machine that originally received the I/O. 12625 */ 12626 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12627 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12628 union ctl_ha_msg msg; 12629 uint32_t sg_entries_sent; 12630 int do_sg_copy; 12631 int i; 12632 12633 memset(&msg, 0, sizeof(msg)); 12634 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12635 msg.hdr.original_sc = io->io_hdr.original_sc; 12636 msg.hdr.serializing_sc = io; 12637 msg.hdr.nexus = io->io_hdr.nexus; 12638 msg.dt.flags = io->io_hdr.flags; 12639 /* 12640 * We convert everything into a S/G list here. We can't 12641 * pass by reference, only by value between controllers. 12642 * So we can't pass a pointer to the S/G list, only as many 12643 * S/G entries as we can fit in here. If it's possible for 12644 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12645 * then we need to break this up into multiple transfers. 12646 */ 12647 if (io->scsiio.kern_sg_entries == 0) { 12648 msg.dt.kern_sg_entries = 1; 12649 /* 12650 * If this is in cached memory, flush the cache 12651 * before we send the DMA request to the other 12652 * controller. We want to do this in either the 12653 * read or the write case. The read case is 12654 * straightforward. In the write case, we want to 12655 * make sure nothing is in the local cache that 12656 * could overwrite the DMAed data. 12657 */ 12658 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12659 /* 12660 * XXX KDM use bus_dmamap_sync() here. 12661 */ 12662 } 12663 12664 /* 12665 * Convert to a physical address if this is a 12666 * virtual address. 12667 */ 12668 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12669 msg.dt.sg_list[0].addr = 12670 io->scsiio.kern_data_ptr; 12671 } else { 12672 /* 12673 * XXX KDM use busdma here! 12674 */ 12675#if 0 12676 msg.dt.sg_list[0].addr = (void *) 12677 vtophys(io->scsiio.kern_data_ptr); 12678#endif 12679 } 12680 12681 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12682 do_sg_copy = 0; 12683 } else { 12684 struct ctl_sg_entry *sgl; 12685 12686 do_sg_copy = 1; 12687 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12688 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12689 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12690 /* 12691 * XXX KDM use bus_dmamap_sync() here. 12692 */ 12693 } 12694 } 12695 12696 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12697 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12698 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12699 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12700 msg.dt.sg_sequence = 0; 12701 12702 /* 12703 * Loop until we've sent all of the S/G entries. On the 12704 * other end, we'll recompose these S/G entries into one 12705 * contiguous list before passing it to the 12706 */ 12707 for (sg_entries_sent = 0; sg_entries_sent < 12708 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12709 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12710 sizeof(msg.dt.sg_list[0])), 12711 msg.dt.kern_sg_entries - sg_entries_sent); 12712 12713 if (do_sg_copy != 0) { 12714 struct ctl_sg_entry *sgl; 12715 int j; 12716 12717 sgl = (struct ctl_sg_entry *) 12718 io->scsiio.kern_data_ptr; 12719 /* 12720 * If this is in cached memory, flush the cache 12721 * before we send the DMA request to the other 12722 * controller. We want to do this in either 12723 * the * read or the write case. The read 12724 * case is straightforward. In the write 12725 * case, we want to make sure nothing is 12726 * in the local cache that could overwrite 12727 * the DMAed data. 12728 */ 12729 12730 for (i = sg_entries_sent, j = 0; 12731 i < msg.dt.cur_sg_entries; i++, j++) { 12732 if ((io->io_hdr.flags & 12733 CTL_FLAG_NO_DATASYNC) == 0) { 12734 /* 12735 * XXX KDM use bus_dmamap_sync() 12736 */ 12737 } 12738 if ((io->io_hdr.flags & 12739 CTL_FLAG_BUS_ADDR) == 0) { 12740 /* 12741 * XXX KDM use busdma. 12742 */ 12743#if 0 12744 msg.dt.sg_list[j].addr =(void *) 12745 vtophys(sgl[i].addr); 12746#endif 12747 } else { 12748 msg.dt.sg_list[j].addr = 12749 sgl[i].addr; 12750 } 12751 msg.dt.sg_list[j].len = sgl[i].len; 12752 } 12753 } 12754 12755 sg_entries_sent += msg.dt.cur_sg_entries; 12756 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12757 msg.dt.sg_last = 1; 12758 else 12759 msg.dt.sg_last = 0; 12760 12761 /* 12762 * XXX KDM drop and reacquire the lock here? 12763 */ 12764 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12765 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12766 /* 12767 * XXX do something here. 12768 */ 12769 } 12770 12771 msg.dt.sent_sg_entries = sg_entries_sent; 12772 } 12773 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12774 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12775 ctl_failover_io(io, /*have_lock*/ 0); 12776 12777 } else { 12778 12779 /* 12780 * Lookup the fe_datamove() function for this particular 12781 * front end. 12782 */ 12783 fe_datamove = 12784 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12785 12786 fe_datamove(io); 12787 } 12788} 12789 12790static void 12791ctl_send_datamove_done(union ctl_io *io, int have_lock) 12792{ 12793 union ctl_ha_msg msg; 12794 int isc_status; 12795 12796 memset(&msg, 0, sizeof(msg)); 12797 12798 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12799 msg.hdr.original_sc = io; 12800 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12801 msg.hdr.nexus = io->io_hdr.nexus; 12802 msg.hdr.status = io->io_hdr.status; 12803 msg.scsi.tag_num = io->scsiio.tag_num; 12804 msg.scsi.tag_type = io->scsiio.tag_type; 12805 msg.scsi.scsi_status = io->scsiio.scsi_status; 12806 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12807 sizeof(io->scsiio.sense_data)); 12808 msg.scsi.sense_len = io->scsiio.sense_len; 12809 msg.scsi.sense_residual = io->scsiio.sense_residual; 12810 msg.scsi.fetd_status = io->io_hdr.port_status; 12811 msg.scsi.residual = io->scsiio.residual; 12812 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12813 12814 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12815 ctl_failover_io(io, /*have_lock*/ have_lock); 12816 return; 12817 } 12818 12819 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12820 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12821 /* XXX do something if this fails */ 12822 } 12823 12824} 12825 12826/* 12827 * The DMA to the remote side is done, now we need to tell the other side 12828 * we're done so it can continue with its data movement. 12829 */ 12830static void 12831ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12832{ 12833 union ctl_io *io; 12834 12835 io = rq->context; 12836 12837 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12838 printf("%s: ISC DMA write failed with error %d", __func__, 12839 rq->ret); 12840 ctl_set_internal_failure(&io->scsiio, 12841 /*sks_valid*/ 1, 12842 /*retry_count*/ rq->ret); 12843 } 12844 12845 ctl_dt_req_free(rq); 12846 12847 /* 12848 * In this case, we had to malloc the memory locally. Free it. 12849 */ 12850 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12851 int i; 12852 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12853 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12854 } 12855 /* 12856 * The data is in local and remote memory, so now we need to send 12857 * status (good or back) back to the other side. 12858 */ 12859 ctl_send_datamove_done(io, /*have_lock*/ 0); 12860} 12861 12862/* 12863 * We've moved the data from the host/controller into local memory. Now we 12864 * need to push it over to the remote controller's memory. 12865 */ 12866static int 12867ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12868{ 12869 int retval; 12870 12871 retval = 0; 12872 12873 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12874 ctl_datamove_remote_write_cb); 12875 12876 return (retval); 12877} 12878 12879static void 12880ctl_datamove_remote_write(union ctl_io *io) 12881{ 12882 int retval; 12883 void (*fe_datamove)(union ctl_io *io); 12884 12885 /* 12886 * - Get the data from the host/HBA into local memory. 12887 * - DMA memory from the local controller to the remote controller. 12888 * - Send status back to the remote controller. 12889 */ 12890 12891 retval = ctl_datamove_remote_sgl_setup(io); 12892 if (retval != 0) 12893 return; 12894 12895 /* Switch the pointer over so the FETD knows what to do */ 12896 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12897 12898 /* 12899 * Use a custom move done callback, since we need to send completion 12900 * back to the other controller, not to the backend on this side. 12901 */ 12902 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12903 12904 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12905 12906 fe_datamove(io); 12907 12908 return; 12909 12910} 12911 12912static int 12913ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12914{ 12915#if 0 12916 char str[256]; 12917 char path_str[64]; 12918 struct sbuf sb; 12919#endif 12920 12921 /* 12922 * In this case, we had to malloc the memory locally. Free it. 12923 */ 12924 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12925 int i; 12926 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12927 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12928 } 12929 12930#if 0 12931 scsi_path_string(io, path_str, sizeof(path_str)); 12932 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12933 sbuf_cat(&sb, path_str); 12934 scsi_command_string(&io->scsiio, NULL, &sb); 12935 sbuf_printf(&sb, "\n"); 12936 sbuf_cat(&sb, path_str); 12937 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12938 io->scsiio.tag_num, io->scsiio.tag_type); 12939 sbuf_cat(&sb, path_str); 12940 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12941 io->io_hdr.flags, io->io_hdr.status); 12942 sbuf_finish(&sb); 12943 printk("%s", sbuf_data(&sb)); 12944#endif 12945 12946 12947 /* 12948 * The read is done, now we need to send status (good or bad) back 12949 * to the other side. 12950 */ 12951 ctl_send_datamove_done(io, /*have_lock*/ 0); 12952 12953 return (0); 12954} 12955 12956static void 12957ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12958{ 12959 union ctl_io *io; 12960 void (*fe_datamove)(union ctl_io *io); 12961 12962 io = rq->context; 12963 12964 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12965 printf("%s: ISC DMA read failed with error %d", __func__, 12966 rq->ret); 12967 ctl_set_internal_failure(&io->scsiio, 12968 /*sks_valid*/ 1, 12969 /*retry_count*/ rq->ret); 12970 } 12971 12972 ctl_dt_req_free(rq); 12973 12974 /* Switch the pointer over so the FETD knows what to do */ 12975 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12976 12977 /* 12978 * Use a custom move done callback, since we need to send completion 12979 * back to the other controller, not to the backend on this side. 12980 */ 12981 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12982 12983 /* XXX KDM add checks like the ones in ctl_datamove? */ 12984 12985 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12986 12987 fe_datamove(io); 12988} 12989 12990static int 12991ctl_datamove_remote_sgl_setup(union ctl_io *io) 12992{ 12993 struct ctl_sg_entry *local_sglist, *remote_sglist; 12994 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12995 struct ctl_softc *softc; 12996 int retval; 12997 int i; 12998 12999 retval = 0; 13000 softc = control_softc; 13001 13002 local_sglist = io->io_hdr.local_sglist; 13003 local_dma_sglist = io->io_hdr.local_dma_sglist; 13004 remote_sglist = io->io_hdr.remote_sglist; 13005 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13006 13007 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13008 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13009 local_sglist[i].len = remote_sglist[i].len; 13010 13011 /* 13012 * XXX Detect the situation where the RS-level I/O 13013 * redirector on the other side has already read the 13014 * data off of the AOR RS on this side, and 13015 * transferred it to remote (mirror) memory on the 13016 * other side. Since we already have the data in 13017 * memory here, we just need to use it. 13018 * 13019 * XXX KDM this can probably be removed once we 13020 * get the cache device code in and take the 13021 * current AOR implementation out. 13022 */ 13023#ifdef NEEDTOPORT 13024 if ((remote_sglist[i].addr >= 13025 (void *)vtophys(softc->mirr->addr)) 13026 && (remote_sglist[i].addr < 13027 ((void *)vtophys(softc->mirr->addr) + 13028 CacheMirrorOffset))) { 13029 local_sglist[i].addr = remote_sglist[i].addr - 13030 CacheMirrorOffset; 13031 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13032 CTL_FLAG_DATA_IN) 13033 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13034 } else { 13035 local_sglist[i].addr = remote_sglist[i].addr + 13036 CacheMirrorOffset; 13037 } 13038#endif 13039#if 0 13040 printf("%s: local %p, remote %p, len %d\n", 13041 __func__, local_sglist[i].addr, 13042 remote_sglist[i].addr, local_sglist[i].len); 13043#endif 13044 } 13045 } else { 13046 uint32_t len_to_go; 13047 13048 /* 13049 * In this case, we don't have automatically allocated 13050 * memory for this I/O on this controller. This typically 13051 * happens with internal CTL I/O -- e.g. inquiry, mode 13052 * sense, etc. Anything coming from RAIDCore will have 13053 * a mirror area available. 13054 */ 13055 len_to_go = io->scsiio.kern_data_len; 13056 13057 /* 13058 * Clear the no datasync flag, we have to use malloced 13059 * buffers. 13060 */ 13061 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13062 13063 /* 13064 * The difficult thing here is that the size of the various 13065 * S/G segments may be different than the size from the 13066 * remote controller. That'll make it harder when DMAing 13067 * the data back to the other side. 13068 */ 13069 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13070 sizeof(io->io_hdr.remote_sglist[0])) && 13071 (len_to_go > 0); i++) { 13072 local_sglist[i].len = MIN(len_to_go, 131072); 13073 CTL_SIZE_8B(local_dma_sglist[i].len, 13074 local_sglist[i].len); 13075 local_sglist[i].addr = 13076 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13077 13078 local_dma_sglist[i].addr = local_sglist[i].addr; 13079 13080 if (local_sglist[i].addr == NULL) { 13081 int j; 13082 13083 printf("malloc failed for %zd bytes!", 13084 local_dma_sglist[i].len); 13085 for (j = 0; j < i; j++) { 13086 free(local_sglist[j].addr, M_CTL); 13087 } 13088 ctl_set_internal_failure(&io->scsiio, 13089 /*sks_valid*/ 1, 13090 /*retry_count*/ 4857); 13091 retval = 1; 13092 goto bailout_error; 13093 13094 } 13095 /* XXX KDM do we need a sync here? */ 13096 13097 len_to_go -= local_sglist[i].len; 13098 } 13099 /* 13100 * Reset the number of S/G entries accordingly. The 13101 * original number of S/G entries is available in 13102 * rem_sg_entries. 13103 */ 13104 io->scsiio.kern_sg_entries = i; 13105 13106#if 0 13107 printf("%s: kern_sg_entries = %d\n", __func__, 13108 io->scsiio.kern_sg_entries); 13109 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13110 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13111 local_sglist[i].addr, local_sglist[i].len, 13112 local_dma_sglist[i].len); 13113#endif 13114 } 13115 13116 13117 return (retval); 13118 13119bailout_error: 13120 13121 ctl_send_datamove_done(io, /*have_lock*/ 0); 13122 13123 return (retval); 13124} 13125 13126static int 13127ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13128 ctl_ha_dt_cb callback) 13129{ 13130 struct ctl_ha_dt_req *rq; 13131 struct ctl_sg_entry *remote_sglist, *local_sglist; 13132 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13133 uint32_t local_used, remote_used, total_used; 13134 int retval; 13135 int i, j; 13136 13137 retval = 0; 13138 13139 rq = ctl_dt_req_alloc(); 13140 13141 /* 13142 * If we failed to allocate the request, and if the DMA didn't fail 13143 * anyway, set busy status. This is just a resource allocation 13144 * failure. 13145 */ 13146 if ((rq == NULL) 13147 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13148 ctl_set_busy(&io->scsiio); 13149 13150 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13151 13152 if (rq != NULL) 13153 ctl_dt_req_free(rq); 13154 13155 /* 13156 * The data move failed. We need to return status back 13157 * to the other controller. No point in trying to DMA 13158 * data to the remote controller. 13159 */ 13160 13161 ctl_send_datamove_done(io, /*have_lock*/ 0); 13162 13163 retval = 1; 13164 13165 goto bailout; 13166 } 13167 13168 local_sglist = io->io_hdr.local_sglist; 13169 local_dma_sglist = io->io_hdr.local_dma_sglist; 13170 remote_sglist = io->io_hdr.remote_sglist; 13171 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13172 local_used = 0; 13173 remote_used = 0; 13174 total_used = 0; 13175 13176 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13177 rq->ret = CTL_HA_STATUS_SUCCESS; 13178 rq->context = io; 13179 callback(rq); 13180 goto bailout; 13181 } 13182 13183 /* 13184 * Pull/push the data over the wire from/to the other controller. 13185 * This takes into account the possibility that the local and 13186 * remote sglists may not be identical in terms of the size of 13187 * the elements and the number of elements. 13188 * 13189 * One fundamental assumption here is that the length allocated for 13190 * both the local and remote sglists is identical. Otherwise, we've 13191 * essentially got a coding error of some sort. 13192 */ 13193 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13194 int isc_ret; 13195 uint32_t cur_len, dma_length; 13196 uint8_t *tmp_ptr; 13197 13198 rq->id = CTL_HA_DATA_CTL; 13199 rq->command = command; 13200 rq->context = io; 13201 13202 /* 13203 * Both pointers should be aligned. But it is possible 13204 * that the allocation length is not. They should both 13205 * also have enough slack left over at the end, though, 13206 * to round up to the next 8 byte boundary. 13207 */ 13208 cur_len = MIN(local_sglist[i].len - local_used, 13209 remote_sglist[j].len - remote_used); 13210 13211 /* 13212 * In this case, we have a size issue and need to decrease 13213 * the size, except in the case where we actually have less 13214 * than 8 bytes left. In that case, we need to increase 13215 * the DMA length to get the last bit. 13216 */ 13217 if ((cur_len & 0x7) != 0) { 13218 if (cur_len > 0x7) { 13219 cur_len = cur_len - (cur_len & 0x7); 13220 dma_length = cur_len; 13221 } else { 13222 CTL_SIZE_8B(dma_length, cur_len); 13223 } 13224 13225 } else 13226 dma_length = cur_len; 13227 13228 /* 13229 * If we had to allocate memory for this I/O, instead of using 13230 * the non-cached mirror memory, we'll need to flush the cache 13231 * before trying to DMA to the other controller. 13232 * 13233 * We could end up doing this multiple times for the same 13234 * segment if we have a larger local segment than remote 13235 * segment. That shouldn't be an issue. 13236 */ 13237 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13238 /* 13239 * XXX KDM use bus_dmamap_sync() here. 13240 */ 13241 } 13242 13243 rq->size = dma_length; 13244 13245 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13246 tmp_ptr += local_used; 13247 13248 /* Use physical addresses when talking to ISC hardware */ 13249 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13250 /* XXX KDM use busdma */ 13251#if 0 13252 rq->local = vtophys(tmp_ptr); 13253#endif 13254 } else 13255 rq->local = tmp_ptr; 13256 13257 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13258 tmp_ptr += remote_used; 13259 rq->remote = tmp_ptr; 13260 13261 rq->callback = NULL; 13262 13263 local_used += cur_len; 13264 if (local_used >= local_sglist[i].len) { 13265 i++; 13266 local_used = 0; 13267 } 13268 13269 remote_used += cur_len; 13270 if (remote_used >= remote_sglist[j].len) { 13271 j++; 13272 remote_used = 0; 13273 } 13274 total_used += cur_len; 13275 13276 if (total_used >= io->scsiio.kern_data_len) 13277 rq->callback = callback; 13278 13279 if ((rq->size & 0x7) != 0) { 13280 printf("%s: warning: size %d is not on 8b boundary\n", 13281 __func__, rq->size); 13282 } 13283 if (((uintptr_t)rq->local & 0x7) != 0) { 13284 printf("%s: warning: local %p not on 8b boundary\n", 13285 __func__, rq->local); 13286 } 13287 if (((uintptr_t)rq->remote & 0x7) != 0) { 13288 printf("%s: warning: remote %p not on 8b boundary\n", 13289 __func__, rq->local); 13290 } 13291#if 0 13292 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13293 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13294 rq->local, rq->remote, rq->size); 13295#endif 13296 13297 isc_ret = ctl_dt_single(rq); 13298 if (isc_ret == CTL_HA_STATUS_WAIT) 13299 continue; 13300 13301 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13302 rq->ret = CTL_HA_STATUS_SUCCESS; 13303 } else { 13304 rq->ret = isc_ret; 13305 } 13306 callback(rq); 13307 goto bailout; 13308 } 13309 13310bailout: 13311 return (retval); 13312 13313} 13314 13315static void 13316ctl_datamove_remote_read(union ctl_io *io) 13317{ 13318 int retval; 13319 int i; 13320 13321 /* 13322 * This will send an error to the other controller in the case of a 13323 * failure. 13324 */ 13325 retval = ctl_datamove_remote_sgl_setup(io); 13326 if (retval != 0) 13327 return; 13328 13329 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13330 ctl_datamove_remote_read_cb); 13331 if ((retval != 0) 13332 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13333 /* 13334 * Make sure we free memory if there was an error.. The 13335 * ctl_datamove_remote_xfer() function will send the 13336 * datamove done message, or call the callback with an 13337 * error if there is a problem. 13338 */ 13339 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13340 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13341 } 13342 13343 return; 13344} 13345 13346/* 13347 * Process a datamove request from the other controller. This is used for 13348 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13349 * first. Once that is complete, the data gets DMAed into the remote 13350 * controller's memory. For reads, we DMA from the remote controller's 13351 * memory into our memory first, and then move it out to the FETD. 13352 */ 13353static void 13354ctl_datamove_remote(union ctl_io *io) 13355{ 13356 struct ctl_softc *softc; 13357 13358 softc = control_softc; 13359 13360 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13361 13362 /* 13363 * Note that we look for an aborted I/O here, but don't do some of 13364 * the other checks that ctl_datamove() normally does. 13365 * We don't need to run the datamove delay code, since that should 13366 * have been done if need be on the other controller. 13367 */ 13368 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13369 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13370 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13371 io->io_hdr.nexus.targ_port, 13372 io->io_hdr.nexus.targ_target.id, 13373 io->io_hdr.nexus.targ_lun); 13374 io->io_hdr.port_status = 31338; 13375 ctl_send_datamove_done(io, /*have_lock*/ 0); 13376 return; 13377 } 13378 13379 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13380 ctl_datamove_remote_write(io); 13381 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13382 ctl_datamove_remote_read(io); 13383 } else { 13384 union ctl_ha_msg msg; 13385 struct scsi_sense_data *sense; 13386 uint8_t sks[3]; 13387 int retry_count; 13388 13389 memset(&msg, 0, sizeof(msg)); 13390 13391 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13392 msg.hdr.status = CTL_SCSI_ERROR; 13393 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13394 13395 retry_count = 4243; 13396 13397 sense = &msg.scsi.sense_data; 13398 sks[0] = SSD_SCS_VALID; 13399 sks[1] = (retry_count >> 8) & 0xff; 13400 sks[2] = retry_count & 0xff; 13401 13402 /* "Internal target failure" */ 13403 scsi_set_sense_data(sense, 13404 /*sense_format*/ SSD_TYPE_NONE, 13405 /*current_error*/ 1, 13406 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13407 /*asc*/ 0x44, 13408 /*ascq*/ 0x00, 13409 /*type*/ SSD_ELEM_SKS, 13410 /*size*/ sizeof(sks), 13411 /*data*/ sks, 13412 SSD_ELEM_NONE); 13413 13414 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13415 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13416 ctl_failover_io(io, /*have_lock*/ 1); 13417 return; 13418 } 13419 13420 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13421 CTL_HA_STATUS_SUCCESS) { 13422 /* XXX KDM what to do if this fails? */ 13423 } 13424 return; 13425 } 13426 13427} 13428 13429static int 13430ctl_process_done(union ctl_io *io) 13431{ 13432 struct ctl_lun *lun; 13433 struct ctl_softc *softc = control_softc; 13434 void (*fe_done)(union ctl_io *io); 13435 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13436 13437 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13438 13439 fe_done = softc->ctl_ports[targ_port]->fe_done; 13440 13441#ifdef CTL_TIME_IO 13442 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13443 char str[256]; 13444 char path_str[64]; 13445 struct sbuf sb; 13446 13447 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13448 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13449 13450 sbuf_cat(&sb, path_str); 13451 switch (io->io_hdr.io_type) { 13452 case CTL_IO_SCSI: 13453 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13454 sbuf_printf(&sb, "\n"); 13455 sbuf_cat(&sb, path_str); 13456 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13457 io->scsiio.tag_num, io->scsiio.tag_type); 13458 break; 13459 case CTL_IO_TASK: 13460 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13461 "Tag Type: %d\n", io->taskio.task_action, 13462 io->taskio.tag_num, io->taskio.tag_type); 13463 break; 13464 default: 13465 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13466 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13467 break; 13468 } 13469 sbuf_cat(&sb, path_str); 13470 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13471 (intmax_t)time_uptime - io->io_hdr.start_time); 13472 sbuf_finish(&sb); 13473 printf("%s", sbuf_data(&sb)); 13474 } 13475#endif /* CTL_TIME_IO */ 13476 13477 switch (io->io_hdr.io_type) { 13478 case CTL_IO_SCSI: 13479 break; 13480 case CTL_IO_TASK: 13481 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13482 ctl_io_error_print(io, NULL); 13483 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13484 ctl_free_io(io); 13485 else 13486 fe_done(io); 13487 return (CTL_RETVAL_COMPLETE); 13488 default: 13489 panic("ctl_process_done: invalid io type %d\n", 13490 io->io_hdr.io_type); 13491 break; /* NOTREACHED */ 13492 } 13493 13494 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13495 if (lun == NULL) { 13496 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13497 io->io_hdr.nexus.targ_mapped_lun)); 13498 goto bailout; 13499 } 13500 13501 mtx_lock(&lun->lun_lock); 13502 13503 /* 13504 * Check to see if we have any errors to inject here. We only 13505 * inject errors for commands that don't already have errors set. 13506 */ 13507 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13508 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13509 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13510 ctl_inject_error(lun, io); 13511 13512 /* 13513 * XXX KDM how do we treat commands that aren't completed 13514 * successfully? 13515 * 13516 * XXX KDM should we also track I/O latency? 13517 */ 13518 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13519 io->io_hdr.io_type == CTL_IO_SCSI) { 13520#ifdef CTL_TIME_IO 13521 struct bintime cur_bt; 13522#endif 13523 int type; 13524 13525 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13526 CTL_FLAG_DATA_IN) 13527 type = CTL_STATS_READ; 13528 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13529 CTL_FLAG_DATA_OUT) 13530 type = CTL_STATS_WRITE; 13531 else 13532 type = CTL_STATS_NO_IO; 13533 13534 lun->stats.ports[targ_port].bytes[type] += 13535 io->scsiio.kern_total_len; 13536 lun->stats.ports[targ_port].operations[type]++; 13537#ifdef CTL_TIME_IO 13538 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13539 &io->io_hdr.dma_bt); 13540 lun->stats.ports[targ_port].num_dmas[type] += 13541 io->io_hdr.num_dmas; 13542 getbintime(&cur_bt); 13543 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13544 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13545#endif 13546 } 13547 13548 /* 13549 * Remove this from the OOA queue. 13550 */ 13551 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13552 13553 /* 13554 * Run through the blocked queue on this LUN and see if anything 13555 * has become unblocked, now that this transaction is done. 13556 */ 13557 ctl_check_blocked(lun); 13558 13559 /* 13560 * If the LUN has been invalidated, free it if there is nothing 13561 * left on its OOA queue. 13562 */ 13563 if ((lun->flags & CTL_LUN_INVALID) 13564 && TAILQ_EMPTY(&lun->ooa_queue)) { 13565 mtx_unlock(&lun->lun_lock); 13566 mtx_lock(&softc->ctl_lock); 13567 ctl_free_lun(lun); 13568 mtx_unlock(&softc->ctl_lock); 13569 } else 13570 mtx_unlock(&lun->lun_lock); 13571 13572bailout: 13573 13574 /* 13575 * If this command has been aborted, make sure we set the status 13576 * properly. The FETD is responsible for freeing the I/O and doing 13577 * whatever it needs to do to clean up its state. 13578 */ 13579 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13580 ctl_set_task_aborted(&io->scsiio); 13581 13582 /* 13583 * If enabled, print command error status. 13584 * We don't print UAs unless debugging was enabled explicitly. 13585 */ 13586 do { 13587 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13588 break; 13589 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13590 break; 13591 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13592 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13593 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13594 int error_code, sense_key, asc, ascq; 13595 13596 scsi_extract_sense_len(&io->scsiio.sense_data, 13597 io->scsiio.sense_len, &error_code, &sense_key, 13598 &asc, &ascq, /*show_errors*/ 0); 13599 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13600 break; 13601 } 13602 13603 ctl_io_error_print(io, NULL); 13604 } while (0); 13605 13606 /* 13607 * Tell the FETD or the other shelf controller we're done with this 13608 * command. Note that only SCSI commands get to this point. Task 13609 * management commands are completed above. 13610 * 13611 * We only send status to the other controller if we're in XFER 13612 * mode. In SER_ONLY mode, the I/O is done on the controller that 13613 * received the I/O (from CTL's perspective), and so the status is 13614 * generated there. 13615 * 13616 * XXX KDM if we hold the lock here, we could cause a deadlock 13617 * if the frontend comes back in in this context to queue 13618 * something. 13619 */ 13620 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13621 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13622 union ctl_ha_msg msg; 13623 13624 memset(&msg, 0, sizeof(msg)); 13625 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13626 msg.hdr.original_sc = io->io_hdr.original_sc; 13627 msg.hdr.nexus = io->io_hdr.nexus; 13628 msg.hdr.status = io->io_hdr.status; 13629 msg.scsi.scsi_status = io->scsiio.scsi_status; 13630 msg.scsi.tag_num = io->scsiio.tag_num; 13631 msg.scsi.tag_type = io->scsiio.tag_type; 13632 msg.scsi.sense_len = io->scsiio.sense_len; 13633 msg.scsi.sense_residual = io->scsiio.sense_residual; 13634 msg.scsi.residual = io->scsiio.residual; 13635 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13636 sizeof(io->scsiio.sense_data)); 13637 /* 13638 * We copy this whether or not this is an I/O-related 13639 * command. Otherwise, we'd have to go and check to see 13640 * whether it's a read/write command, and it really isn't 13641 * worth it. 13642 */ 13643 memcpy(&msg.scsi.lbalen, 13644 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13645 sizeof(msg.scsi.lbalen)); 13646 13647 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13648 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13649 /* XXX do something here */ 13650 } 13651 13652 ctl_free_io(io); 13653 } else 13654 fe_done(io); 13655 13656 return (CTL_RETVAL_COMPLETE); 13657} 13658 13659#ifdef CTL_WITH_CA 13660/* 13661 * Front end should call this if it doesn't do autosense. When the request 13662 * sense comes back in from the initiator, we'll dequeue this and send it. 13663 */ 13664int 13665ctl_queue_sense(union ctl_io *io) 13666{ 13667 struct ctl_lun *lun; 13668 struct ctl_softc *softc; 13669 uint32_t initidx, targ_lun; 13670 13671 softc = control_softc; 13672 13673 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13674 13675 /* 13676 * LUN lookup will likely move to the ctl_work_thread() once we 13677 * have our new queueing infrastructure (that doesn't put things on 13678 * a per-LUN queue initially). That is so that we can handle 13679 * things like an INQUIRY to a LUN that we don't have enabled. We 13680 * can't deal with that right now. 13681 */ 13682 mtx_lock(&softc->ctl_lock); 13683 13684 /* 13685 * If we don't have a LUN for this, just toss the sense 13686 * information. 13687 */ 13688 targ_lun = io->io_hdr.nexus.targ_lun; 13689 targ_lun = ctl_map_lun(softc, io->io_hdr.nexus.targ_port, targ_lun); 13690 if ((targ_lun < CTL_MAX_LUNS) 13691 && (softc->ctl_luns[targ_lun] != NULL)) 13692 lun = softc->ctl_luns[targ_lun]; 13693 else 13694 goto bailout; 13695 13696 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13697 13698 mtx_lock(&lun->lun_lock); 13699 /* 13700 * Already have CA set for this LUN...toss the sense information. 13701 */ 13702 if (ctl_is_set(lun->have_ca, initidx)) { 13703 mtx_unlock(&lun->lun_lock); 13704 goto bailout; 13705 } 13706 13707 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13708 MIN(sizeof(lun->pending_sense[initidx]), 13709 sizeof(io->scsiio.sense_data))); 13710 ctl_set_mask(lun->have_ca, initidx); 13711 mtx_unlock(&lun->lun_lock); 13712 13713bailout: 13714 mtx_unlock(&softc->ctl_lock); 13715 13716 ctl_free_io(io); 13717 13718 return (CTL_RETVAL_COMPLETE); 13719} 13720#endif 13721 13722/* 13723 * Primary command inlet from frontend ports. All SCSI and task I/O 13724 * requests must go through this function. 13725 */ 13726int 13727ctl_queue(union ctl_io *io) 13728{ 13729 13730 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13731 13732#ifdef CTL_TIME_IO 13733 io->io_hdr.start_time = time_uptime; 13734 getbintime(&io->io_hdr.start_bt); 13735#endif /* CTL_TIME_IO */ 13736 13737 /* Map FE-specific LUN ID into global one. */ 13738 io->io_hdr.nexus.targ_mapped_lun = 13739 ctl_map_lun(control_softc, io->io_hdr.nexus.targ_port, 13740 io->io_hdr.nexus.targ_lun); 13741 13742 switch (io->io_hdr.io_type) { 13743 case CTL_IO_SCSI: 13744 case CTL_IO_TASK: 13745 if (ctl_debug & CTL_DEBUG_CDB) 13746 ctl_io_print(io); 13747 ctl_enqueue_incoming(io); 13748 break; 13749 default: 13750 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13751 return (EINVAL); 13752 } 13753 13754 return (CTL_RETVAL_COMPLETE); 13755} 13756 13757#ifdef CTL_IO_DELAY 13758static void 13759ctl_done_timer_wakeup(void *arg) 13760{ 13761 union ctl_io *io; 13762 13763 io = (union ctl_io *)arg; 13764 ctl_done(io); 13765} 13766#endif /* CTL_IO_DELAY */ 13767 13768void 13769ctl_done(union ctl_io *io) 13770{ 13771 13772 /* 13773 * Enable this to catch duplicate completion issues. 13774 */ 13775#if 0 13776 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13777 printf("%s: type %d msg %d cdb %x iptl: " 13778 "%d:%d:%d:%d tag 0x%04x " 13779 "flag %#x status %x\n", 13780 __func__, 13781 io->io_hdr.io_type, 13782 io->io_hdr.msg_type, 13783 io->scsiio.cdb[0], 13784 io->io_hdr.nexus.initid.id, 13785 io->io_hdr.nexus.targ_port, 13786 io->io_hdr.nexus.targ_target.id, 13787 io->io_hdr.nexus.targ_lun, 13788 (io->io_hdr.io_type == 13789 CTL_IO_TASK) ? 13790 io->taskio.tag_num : 13791 io->scsiio.tag_num, 13792 io->io_hdr.flags, 13793 io->io_hdr.status); 13794 } else 13795 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13796#endif 13797 13798 /* 13799 * This is an internal copy of an I/O, and should not go through 13800 * the normal done processing logic. 13801 */ 13802 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13803 return; 13804 13805 /* 13806 * We need to send a msg to the serializing shelf to finish the IO 13807 * as well. We don't send a finish message to the other shelf if 13808 * this is a task management command. Task management commands 13809 * aren't serialized in the OOA queue, but rather just executed on 13810 * both shelf controllers for commands that originated on that 13811 * controller. 13812 */ 13813 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13814 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13815 union ctl_ha_msg msg_io; 13816 13817 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13818 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13819 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13820 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13821 } 13822 /* continue on to finish IO */ 13823 } 13824#ifdef CTL_IO_DELAY 13825 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13826 struct ctl_lun *lun; 13827 13828 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13829 13830 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13831 } else { 13832 struct ctl_lun *lun; 13833 13834 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13835 13836 if ((lun != NULL) 13837 && (lun->delay_info.done_delay > 0)) { 13838 struct callout *callout; 13839 13840 callout = (struct callout *)&io->io_hdr.timer_bytes; 13841 callout_init(callout, /*mpsafe*/ 1); 13842 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13843 callout_reset(callout, 13844 lun->delay_info.done_delay * hz, 13845 ctl_done_timer_wakeup, io); 13846 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13847 lun->delay_info.done_delay = 0; 13848 return; 13849 } 13850 } 13851#endif /* CTL_IO_DELAY */ 13852 13853 ctl_enqueue_done(io); 13854} 13855 13856int 13857ctl_isc(struct ctl_scsiio *ctsio) 13858{ 13859 struct ctl_lun *lun; 13860 int retval; 13861 13862 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13863 13864 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13865 13866 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13867 13868 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13869 13870 return (retval); 13871} 13872 13873 13874static void 13875ctl_work_thread(void *arg) 13876{ 13877 struct ctl_thread *thr = (struct ctl_thread *)arg; 13878 struct ctl_softc *softc = thr->ctl_softc; 13879 union ctl_io *io; 13880 int retval; 13881 13882 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13883 13884 for (;;) { 13885 retval = 0; 13886 13887 /* 13888 * We handle the queues in this order: 13889 * - ISC 13890 * - done queue (to free up resources, unblock other commands) 13891 * - RtR queue 13892 * - incoming queue 13893 * 13894 * If those queues are empty, we break out of the loop and 13895 * go to sleep. 13896 */ 13897 mtx_lock(&thr->queue_lock); 13898 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13899 if (io != NULL) { 13900 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13901 mtx_unlock(&thr->queue_lock); 13902 ctl_handle_isc(io); 13903 continue; 13904 } 13905 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13906 if (io != NULL) { 13907 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13908 /* clear any blocked commands, call fe_done */ 13909 mtx_unlock(&thr->queue_lock); 13910 retval = ctl_process_done(io); 13911 continue; 13912 } 13913 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13914 if (io != NULL) { 13915 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13916 mtx_unlock(&thr->queue_lock); 13917 if (io->io_hdr.io_type == CTL_IO_TASK) 13918 ctl_run_task(io); 13919 else 13920 ctl_scsiio_precheck(softc, &io->scsiio); 13921 continue; 13922 } 13923 if (!ctl_pause_rtr) { 13924 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13925 if (io != NULL) { 13926 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13927 mtx_unlock(&thr->queue_lock); 13928 retval = ctl_scsiio(&io->scsiio); 13929 if (retval != CTL_RETVAL_COMPLETE) 13930 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13931 continue; 13932 } 13933 } 13934 13935 /* Sleep until we have something to do. */ 13936 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13937 } 13938} 13939 13940static void 13941ctl_lun_thread(void *arg) 13942{ 13943 struct ctl_softc *softc = (struct ctl_softc *)arg; 13944 struct ctl_be_lun *be_lun; 13945 int retval; 13946 13947 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13948 13949 for (;;) { 13950 retval = 0; 13951 mtx_lock(&softc->ctl_lock); 13952 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13953 if (be_lun != NULL) { 13954 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13955 mtx_unlock(&softc->ctl_lock); 13956 ctl_create_lun(be_lun); 13957 continue; 13958 } 13959 13960 /* Sleep until we have something to do. */ 13961 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13962 PDROP | PRIBIO, "-", 0); 13963 } 13964} 13965 13966static void 13967ctl_thresh_thread(void *arg) 13968{ 13969 struct ctl_softc *softc = (struct ctl_softc *)arg; 13970 struct ctl_lun *lun; 13971 struct ctl_be_lun *be_lun; 13972 struct scsi_da_rw_recovery_page *rwpage; 13973 struct ctl_logical_block_provisioning_page *page; 13974 const char *attr; 13975 uint64_t thres, val; 13976 int i, e; 13977 13978 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13979 13980 for (;;) { 13981 mtx_lock(&softc->ctl_lock); 13982 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13983 be_lun = lun->be_lun; 13984 if ((lun->flags & CTL_LUN_DISABLED) || 13985 (lun->flags & CTL_LUN_OFFLINE) || 13986 lun->backend->lun_attr == NULL) 13987 continue; 13988 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13989 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13990 continue; 13991 e = 0; 13992 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13993 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13994 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13995 continue; 13996 thres = scsi_4btoul(page->descr[i].count); 13997 thres <<= CTL_LBP_EXPONENT; 13998 switch (page->descr[i].resource) { 13999 case 0x01: 14000 attr = "blocksavail"; 14001 break; 14002 case 0x02: 14003 attr = "blocksused"; 14004 break; 14005 case 0xf1: 14006 attr = "poolblocksavail"; 14007 break; 14008 case 0xf2: 14009 attr = "poolblocksused"; 14010 break; 14011 default: 14012 continue; 14013 } 14014 mtx_unlock(&softc->ctl_lock); // XXX 14015 val = lun->backend->lun_attr( 14016 lun->be_lun->be_lun, attr); 14017 mtx_lock(&softc->ctl_lock); 14018 if (val == UINT64_MAX) 14019 continue; 14020 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14021 == SLBPPD_ARMING_INC) 14022 e |= (val >= thres); 14023 else 14024 e |= (val <= thres); 14025 } 14026 mtx_lock(&lun->lun_lock); 14027 if (e) { 14028 if (lun->lasttpt == 0 || 14029 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14030 lun->lasttpt = time_uptime; 14031 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14032 } 14033 } else { 14034 lun->lasttpt = 0; 14035 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14036 } 14037 mtx_unlock(&lun->lun_lock); 14038 } 14039 mtx_unlock(&softc->ctl_lock); 14040 pause("-", CTL_LBP_PERIOD * hz); 14041 } 14042} 14043 14044static void 14045ctl_enqueue_incoming(union ctl_io *io) 14046{ 14047 struct ctl_softc *softc = control_softc; 14048 struct ctl_thread *thr; 14049 u_int idx; 14050 14051 idx = (io->io_hdr.nexus.targ_port * 127 + 14052 io->io_hdr.nexus.initid.id) % worker_threads; 14053 thr = &softc->threads[idx]; 14054 mtx_lock(&thr->queue_lock); 14055 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14056 mtx_unlock(&thr->queue_lock); 14057 wakeup(thr); 14058} 14059 14060static void 14061ctl_enqueue_rtr(union ctl_io *io) 14062{ 14063 struct ctl_softc *softc = control_softc; 14064 struct ctl_thread *thr; 14065 14066 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14067 mtx_lock(&thr->queue_lock); 14068 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14069 mtx_unlock(&thr->queue_lock); 14070 wakeup(thr); 14071} 14072 14073static void 14074ctl_enqueue_done(union ctl_io *io) 14075{ 14076 struct ctl_softc *softc = control_softc; 14077 struct ctl_thread *thr; 14078 14079 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14080 mtx_lock(&thr->queue_lock); 14081 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14082 mtx_unlock(&thr->queue_lock); 14083 wakeup(thr); 14084} 14085 14086static void 14087ctl_enqueue_isc(union ctl_io *io) 14088{ 14089 struct ctl_softc *softc = control_softc; 14090 struct ctl_thread *thr; 14091 14092 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14093 mtx_lock(&thr->queue_lock); 14094 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14095 mtx_unlock(&thr->queue_lock); 14096 wakeup(thr); 14097} 14098 14099/* Initialization and failover */ 14100 14101void 14102ctl_init_isc_msg(void) 14103{ 14104 printf("CTL: Still calling this thing\n"); 14105} 14106 14107/* 14108 * Init component 14109 * Initializes component into configuration defined by bootMode 14110 * (see hasc-sv.c) 14111 * returns hasc_Status: 14112 * OK 14113 * ERROR - fatal error 14114 */ 14115static ctl_ha_comp_status 14116ctl_isc_init(struct ctl_ha_component *c) 14117{ 14118 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14119 14120 c->status = ret; 14121 return ret; 14122} 14123 14124/* Start component 14125 * Starts component in state requested. If component starts successfully, 14126 * it must set its own state to the requestrd state 14127 * When requested state is HASC_STATE_HA, the component may refine it 14128 * by adding _SLAVE or _MASTER flags. 14129 * Currently allowed state transitions are: 14130 * UNKNOWN->HA - initial startup 14131 * UNKNOWN->SINGLE - initial startup when no parter detected 14132 * HA->SINGLE - failover 14133 * returns ctl_ha_comp_status: 14134 * OK - component successfully started in requested state 14135 * FAILED - could not start the requested state, failover may 14136 * be possible 14137 * ERROR - fatal error detected, no future startup possible 14138 */ 14139static ctl_ha_comp_status 14140ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14141{ 14142 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14143 14144 printf("%s: go\n", __func__); 14145 14146 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14147 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14148 control_softc->is_single = 0; 14149 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14150 != CTL_HA_STATUS_SUCCESS) { 14151 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14152 ret = CTL_HA_COMP_STATUS_ERROR; 14153 } 14154 } else if (CTL_HA_STATE_IS_HA(c->state) 14155 && CTL_HA_STATE_IS_SINGLE(state)){ 14156 // HA->SINGLE transition 14157 ctl_failover(); 14158 control_softc->is_single = 1; 14159 } else { 14160 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14161 c->state, state); 14162 ret = CTL_HA_COMP_STATUS_ERROR; 14163 } 14164 if (CTL_HA_STATE_IS_SINGLE(state)) 14165 control_softc->is_single = 1; 14166 14167 c->state = state; 14168 c->status = ret; 14169 return ret; 14170} 14171 14172/* 14173 * Quiesce component 14174 * The component must clear any error conditions (set status to OK) and 14175 * prepare itself to another Start call 14176 * returns ctl_ha_comp_status: 14177 * OK 14178 * ERROR 14179 */ 14180static ctl_ha_comp_status 14181ctl_isc_quiesce(struct ctl_ha_component *c) 14182{ 14183 int ret = CTL_HA_COMP_STATUS_OK; 14184 14185 ctl_pause_rtr = 1; 14186 c->status = ret; 14187 return ret; 14188} 14189 14190struct ctl_ha_component ctl_ha_component_ctlisc = 14191{ 14192 .name = "CTL ISC", 14193 .state = CTL_HA_STATE_UNKNOWN, 14194 .init = ctl_isc_init, 14195 .start = ctl_isc_start, 14196 .quiesce = ctl_isc_quiesce 14197}; 14198 14199/* 14200 * vim: ts=8 14201 */ 14202