ctl.c revision 275894
155505Sshin/*- 255505Sshin * Copyright (c) 2003-2009 Silicon Graphics International Corp. 355505Sshin * Copyright (c) 2012 The FreeBSD Foundation 455505Sshin * All rights reserved. 555505Sshin * 655505Sshin * Portions of this software were developed by Edward Tomasz Napierala 755505Sshin * under sponsorship from the FreeBSD Foundation. 855505Sshin * 955505Sshin * Redistribution and use in source and binary forms, with or without 1055505Sshin * modification, are permitted provided that the following conditions 1155505Sshin * are met: 1255505Sshin * 1. Redistributions of source code must retain the above copyright 1355505Sshin * notice, this list of conditions, and the following disclaimer, 1455505Sshin * without modification. 1555505Sshin * 2. Redistributions in binary form must reproduce at minimum a disclaimer 1655505Sshin * substantially similar to the "NO WARRANTY" disclaimer below 1755505Sshin * ("Disclaimer") and any redistribution must be conditioned upon 1855505Sshin * including a substantially similar Disclaimer requirement for further 1955505Sshin * binary redistribution. 2055505Sshin * 2155505Sshin * NO WARRANTY 2255505Sshin * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2355505Sshin * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2455505Sshin * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 2555505Sshin * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2655505Sshin * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27122107Sume * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2855505Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2955505Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30156837Sru * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31156837Sru * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32156813Sru * POSSIBILITY OF SUCH DAMAGES. 33156813Sru * 3455505Sshin * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35195767Skensmith */ 3669640Sobrien/* 3759266Ssteve * CAM Target Layer, a SCSI device emulation subsystem. 38156813Sru * 3959266Ssteve * Author: Ken Merry <ken@FreeBSD.org> 4059266Ssteve */ 4155505Sshin 42171135Sgnn#define _CTL_C 4362583Sitojun 4455505Sshin#include <sys/cdefs.h> 4555505Sshin__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 275894 2014-12-18 08:45:28Z mav $"); 4662583Sitojun 4755505Sshin#include <sys/param.h> 4858906Sshin#include <sys/systm.h> 4958906Sshin#include <sys/ctype.h> 5055505Sshin#include <sys/kernel.h> 51201381Sed#include <sys/types.h> 52201381Sed#include <sys/kthread.h> 5374870Sru#include <sys/bio.h> 5455505Sshin#include <sys/fcntl.h> 5555505Sshin#include <sys/lock.h> 5655505Sshin#include <sys/module.h> 5755505Sshin#include <sys/mutex.h> 5855505Sshin#include <sys/condvar.h> 5955505Sshin#include <sys/malloc.h> 6055505Sshin#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 */ 114static 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 124static 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 133static 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 147static 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 161static 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 178static 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 194static 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 211static 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 227static 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 243static 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 259static 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 271static 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 283static 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 292static 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 303static 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 329static 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(int port_num, uint32_t lun); 404static uint32_t ctl_map_lun_back(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); 439static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 440 union ctl_io *pending_io, union ctl_io *ooa_io); 441static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 442 union ctl_io *starting_io); 443static int ctl_check_blocked(struct ctl_lun *lun); 444static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 445 struct ctl_lun *lun, 446 const struct ctl_cmd_entry *entry, 447 struct ctl_scsiio *ctsio); 448//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 449static void ctl_failover(void); 450static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 451 struct ctl_scsiio *ctsio); 452static int ctl_scsiio(struct ctl_scsiio *ctsio); 453 454static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 455static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 456 ctl_ua_type ua_type); 457static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 458 ctl_ua_type ua_type); 459static int ctl_abort_task(union ctl_io *io); 460static int ctl_abort_task_set(union ctl_io *io); 461static int ctl_i_t_nexus_reset(union ctl_io *io); 462static void ctl_run_task(union ctl_io *io); 463#ifdef CTL_IO_DELAY 464static void ctl_datamove_timer_wakeup(void *arg); 465static void ctl_done_timer_wakeup(void *arg); 466#endif /* CTL_IO_DELAY */ 467 468static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 469static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 470static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 471static void ctl_datamove_remote_write(union ctl_io *io); 472static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 473static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 474static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 475static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 476 ctl_ha_dt_cb callback); 477static void ctl_datamove_remote_read(union ctl_io *io); 478static void ctl_datamove_remote(union ctl_io *io); 479static int ctl_process_done(union ctl_io *io); 480static void ctl_lun_thread(void *arg); 481static void ctl_thresh_thread(void *arg); 482static void ctl_work_thread(void *arg); 483static void ctl_enqueue_incoming(union ctl_io *io); 484static void ctl_enqueue_rtr(union ctl_io *io); 485static void ctl_enqueue_done(union ctl_io *io); 486static void ctl_enqueue_isc(union ctl_io *io); 487static const struct ctl_cmd_entry * 488 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 489static const struct ctl_cmd_entry * 490 ctl_validate_command(struct ctl_scsiio *ctsio); 491static int ctl_cmd_applicable(uint8_t lun_type, 492 const struct ctl_cmd_entry *entry); 493 494/* 495 * Load the serialization table. This isn't very pretty, but is probably 496 * the easiest way to do it. 497 */ 498#include "ctl_ser_table.c" 499 500/* 501 * We only need to define open, close and ioctl routines for this driver. 502 */ 503static struct cdevsw ctl_cdevsw = { 504 .d_version = D_VERSION, 505 .d_flags = 0, 506 .d_open = ctl_open, 507 .d_close = ctl_close, 508 .d_ioctl = ctl_ioctl, 509 .d_name = "ctl", 510}; 511 512 513MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 514MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 515 516static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 517 518static moduledata_t ctl_moduledata = { 519 "ctl", 520 ctl_module_event_handler, 521 NULL 522}; 523 524DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 525MODULE_VERSION(ctl, 1); 526 527static struct ctl_frontend ioctl_frontend = 528{ 529 .name = "ioctl", 530}; 531 532static void 533ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 534 union ctl_ha_msg *msg_info) 535{ 536 struct ctl_scsiio *ctsio; 537 538 if (msg_info->hdr.original_sc == NULL) { 539 printf("%s: original_sc == NULL!\n", __func__); 540 /* XXX KDM now what? */ 541 return; 542 } 543 544 ctsio = &msg_info->hdr.original_sc->scsiio; 545 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 546 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 547 ctsio->io_hdr.status = msg_info->hdr.status; 548 ctsio->scsi_status = msg_info->scsi.scsi_status; 549 ctsio->sense_len = msg_info->scsi.sense_len; 550 ctsio->sense_residual = msg_info->scsi.sense_residual; 551 ctsio->residual = msg_info->scsi.residual; 552 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 553 sizeof(ctsio->sense_data)); 554 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 555 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557} 558 559static void 560ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 561 union ctl_ha_msg *msg_info) 562{ 563 struct ctl_scsiio *ctsio; 564 565 if (msg_info->hdr.serializing_sc == NULL) { 566 printf("%s: serializing_sc == NULL!\n", __func__); 567 /* XXX KDM now what? */ 568 return; 569 } 570 571 ctsio = &msg_info->hdr.serializing_sc->scsiio; 572#if 0 573 /* 574 * Attempt to catch the situation where an I/O has 575 * been freed, and we're using it again. 576 */ 577 if (ctsio->io_hdr.io_type == 0xff) { 578 union ctl_io *tmp_io; 579 tmp_io = (union ctl_io *)ctsio; 580 printf("%s: %p use after free!\n", __func__, 581 ctsio); 582 printf("%s: type %d msg %d cdb %x iptl: " 583 "%d:%d:%d:%d tag 0x%04x " 584 "flag %#x status %x\n", 585 __func__, 586 tmp_io->io_hdr.io_type, 587 tmp_io->io_hdr.msg_type, 588 tmp_io->scsiio.cdb[0], 589 tmp_io->io_hdr.nexus.initid.id, 590 tmp_io->io_hdr.nexus.targ_port, 591 tmp_io->io_hdr.nexus.targ_target.id, 592 tmp_io->io_hdr.nexus.targ_lun, 593 (tmp_io->io_hdr.io_type == 594 CTL_IO_TASK) ? 595 tmp_io->taskio.tag_num : 596 tmp_io->scsiio.tag_num, 597 tmp_io->io_hdr.flags, 598 tmp_io->io_hdr.status); 599 } 600#endif 601 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 602 ctl_enqueue_isc((union ctl_io *)ctsio); 603} 604 605/* 606 * ISC (Inter Shelf Communication) event handler. Events from the HA 607 * subsystem come in here. 608 */ 609static void 610ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 611{ 612 struct ctl_softc *ctl_softc; 613 union ctl_io *io; 614 struct ctl_prio *presio; 615 ctl_ha_status isc_status; 616 617 ctl_softc = control_softc; 618 io = NULL; 619 620 621#if 0 622 printf("CTL: Isc Msg event %d\n", event); 623#endif 624 if (event == CTL_HA_EVT_MSG_RECV) { 625 union ctl_ha_msg msg_info; 626 627 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 628 sizeof(msg_info), /*wait*/ 0); 629#if 0 630 printf("CTL: msg_type %d\n", msg_info.msg_type); 631#endif 632 if (isc_status != 0) { 633 printf("Error receiving message, status = %d\n", 634 isc_status); 635 return; 636 } 637 638 switch (msg_info.hdr.msg_type) { 639 case CTL_MSG_SERIALIZE: 640#if 0 641 printf("Serialize\n"); 642#endif 643 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 644 if (io == NULL) { 645 printf("ctl_isc_event_handler: can't allocate " 646 "ctl_io!\n"); 647 /* Bad Juju */ 648 /* Need to set busy and send msg back */ 649 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 650 msg_info.hdr.status = CTL_SCSI_ERROR; 651 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 652 msg_info.scsi.sense_len = 0; 653 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 654 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 655 } 656 goto bailout; 657 } 658 ctl_zero_io(io); 659 // populate ctsio from msg_info 660 io->io_hdr.io_type = CTL_IO_SCSI; 661 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 662 io->io_hdr.original_sc = msg_info.hdr.original_sc; 663#if 0 664 printf("pOrig %x\n", (int)msg_info.original_sc); 665#endif 666 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 667 CTL_FLAG_IO_ACTIVE; 668 /* 669 * If we're in serialization-only mode, we don't 670 * want to go through full done processing. Thus 671 * the COPY flag. 672 * 673 * XXX KDM add another flag that is more specific. 674 */ 675 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 676 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 677 io->io_hdr.nexus = msg_info.hdr.nexus; 678#if 0 679 printf("targ %d, port %d, iid %d, lun %d\n", 680 io->io_hdr.nexus.targ_target.id, 681 io->io_hdr.nexus.targ_port, 682 io->io_hdr.nexus.initid.id, 683 io->io_hdr.nexus.targ_lun); 684#endif 685 io->scsiio.tag_num = msg_info.scsi.tag_num; 686 io->scsiio.tag_type = msg_info.scsi.tag_type; 687 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 688 CTL_MAX_CDBLEN); 689 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 690 const struct ctl_cmd_entry *entry; 691 692 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 693 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 694 io->io_hdr.flags |= 695 entry->flags & CTL_FLAG_DATA_MASK; 696 } 697 ctl_enqueue_isc(io); 698 break; 699 700 /* Performed on the Originating SC, XFER mode only */ 701 case CTL_MSG_DATAMOVE: { 702 struct ctl_sg_entry *sgl; 703 int i, j; 704 705 io = msg_info.hdr.original_sc; 706 if (io == NULL) { 707 printf("%s: original_sc == NULL!\n", __func__); 708 /* XXX KDM do something here */ 709 break; 710 } 711 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 712 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 713 /* 714 * Keep track of this, we need to send it back over 715 * when the datamove is complete. 716 */ 717 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 718 719 if (msg_info.dt.sg_sequence == 0) { 720 /* 721 * XXX KDM we use the preallocated S/G list 722 * here, but we'll need to change this to 723 * dynamic allocation if we need larger S/G 724 * lists. 725 */ 726 if (msg_info.dt.kern_sg_entries > 727 sizeof(io->io_hdr.remote_sglist) / 728 sizeof(io->io_hdr.remote_sglist[0])) { 729 printf("%s: number of S/G entries " 730 "needed %u > allocated num %zd\n", 731 __func__, 732 msg_info.dt.kern_sg_entries, 733 sizeof(io->io_hdr.remote_sglist)/ 734 sizeof(io->io_hdr.remote_sglist[0])); 735 736 /* 737 * XXX KDM send a message back to 738 * the other side to shut down the 739 * DMA. The error will come back 740 * through via the normal channel. 741 */ 742 break; 743 } 744 sgl = io->io_hdr.remote_sglist; 745 memset(sgl, 0, 746 sizeof(io->io_hdr.remote_sglist)); 747 748 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 749 750 io->scsiio.kern_sg_entries = 751 msg_info.dt.kern_sg_entries; 752 io->scsiio.rem_sg_entries = 753 msg_info.dt.kern_sg_entries; 754 io->scsiio.kern_data_len = 755 msg_info.dt.kern_data_len; 756 io->scsiio.kern_total_len = 757 msg_info.dt.kern_total_len; 758 io->scsiio.kern_data_resid = 759 msg_info.dt.kern_data_resid; 760 io->scsiio.kern_rel_offset = 761 msg_info.dt.kern_rel_offset; 762 /* 763 * Clear out per-DMA flags. 764 */ 765 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 766 /* 767 * Add per-DMA flags that are set for this 768 * particular DMA request. 769 */ 770 io->io_hdr.flags |= msg_info.dt.flags & 771 CTL_FLAG_RDMA_MASK; 772 } else 773 sgl = (struct ctl_sg_entry *) 774 io->scsiio.kern_data_ptr; 775 776 for (i = msg_info.dt.sent_sg_entries, j = 0; 777 i < (msg_info.dt.sent_sg_entries + 778 msg_info.dt.cur_sg_entries); i++, j++) { 779 sgl[i].addr = msg_info.dt.sg_list[j].addr; 780 sgl[i].len = msg_info.dt.sg_list[j].len; 781 782#if 0 783 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 784 __func__, 785 msg_info.dt.sg_list[j].addr, 786 msg_info.dt.sg_list[j].len, 787 sgl[i].addr, sgl[i].len, j, i); 788#endif 789 } 790#if 0 791 memcpy(&sgl[msg_info.dt.sent_sg_entries], 792 msg_info.dt.sg_list, 793 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 794#endif 795 796 /* 797 * If this is the last piece of the I/O, we've got 798 * the full S/G list. Queue processing in the thread. 799 * Otherwise wait for the next piece. 800 */ 801 if (msg_info.dt.sg_last != 0) 802 ctl_enqueue_isc(io); 803 break; 804 } 805 /* Performed on the Serializing (primary) SC, XFER mode only */ 806 case CTL_MSG_DATAMOVE_DONE: { 807 if (msg_info.hdr.serializing_sc == NULL) { 808 printf("%s: serializing_sc == NULL!\n", 809 __func__); 810 /* XXX KDM now what? */ 811 break; 812 } 813 /* 814 * We grab the sense information here in case 815 * there was a failure, so we can return status 816 * back to the initiator. 817 */ 818 io = msg_info.hdr.serializing_sc; 819 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 820 io->io_hdr.status = msg_info.hdr.status; 821 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 822 io->scsiio.sense_len = msg_info.scsi.sense_len; 823 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 824 io->io_hdr.port_status = msg_info.scsi.fetd_status; 825 io->scsiio.residual = msg_info.scsi.residual; 826 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 827 sizeof(io->scsiio.sense_data)); 828 ctl_enqueue_isc(io); 829 break; 830 } 831 832 /* Preformed on Originating SC, SER_ONLY mode */ 833 case CTL_MSG_R2R: 834 io = msg_info.hdr.original_sc; 835 if (io == NULL) { 836 printf("%s: Major Bummer\n", __func__); 837 return; 838 } else { 839#if 0 840 printf("pOrig %x\n",(int) ctsio); 841#endif 842 } 843 io->io_hdr.msg_type = CTL_MSG_R2R; 844 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 845 ctl_enqueue_isc(io); 846 break; 847 848 /* 849 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 850 * mode. 851 * Performed on the Originating (i.e. secondary) SC in XFER 852 * mode 853 */ 854 case CTL_MSG_FINISH_IO: 855 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 856 ctl_isc_handler_finish_xfer(ctl_softc, 857 &msg_info); 858 else 859 ctl_isc_handler_finish_ser_only(ctl_softc, 860 &msg_info); 861 break; 862 863 /* Preformed on Originating SC */ 864 case CTL_MSG_BAD_JUJU: 865 io = msg_info.hdr.original_sc; 866 if (io == NULL) { 867 printf("%s: Bad JUJU!, original_sc is NULL!\n", 868 __func__); 869 break; 870 } 871 ctl_copy_sense_data(&msg_info, io); 872 /* 873 * IO should have already been cleaned up on other 874 * SC so clear this flag so we won't send a message 875 * back to finish the IO there. 876 */ 877 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 878 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 879 880 /* io = msg_info.hdr.serializing_sc; */ 881 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 882 ctl_enqueue_isc(io); 883 break; 884 885 /* Handle resets sent from the other side */ 886 case CTL_MSG_MANAGE_TASKS: { 887 struct ctl_taskio *taskio; 888 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 889 ctl_softc->othersc_pool); 890 if (taskio == NULL) { 891 printf("ctl_isc_event_handler: can't allocate " 892 "ctl_io!\n"); 893 /* Bad Juju */ 894 /* should I just call the proper reset func 895 here??? */ 896 goto bailout; 897 } 898 ctl_zero_io((union ctl_io *)taskio); 899 taskio->io_hdr.io_type = CTL_IO_TASK; 900 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 901 taskio->io_hdr.nexus = msg_info.hdr.nexus; 902 taskio->task_action = msg_info.task.task_action; 903 taskio->tag_num = msg_info.task.tag_num; 904 taskio->tag_type = msg_info.task.tag_type; 905#ifdef CTL_TIME_IO 906 taskio->io_hdr.start_time = time_uptime; 907 getbintime(&taskio->io_hdr.start_bt); 908#if 0 909 cs_prof_gettime(&taskio->io_hdr.start_ticks); 910#endif 911#endif /* CTL_TIME_IO */ 912 ctl_run_task((union ctl_io *)taskio); 913 break; 914 } 915 /* Persistent Reserve action which needs attention */ 916 case CTL_MSG_PERS_ACTION: 917 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 918 ctl_softc->othersc_pool); 919 if (presio == NULL) { 920 printf("ctl_isc_event_handler: can't allocate " 921 "ctl_io!\n"); 922 /* Bad Juju */ 923 /* Need to set busy and send msg back */ 924 goto bailout; 925 } 926 ctl_zero_io((union ctl_io *)presio); 927 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 928 presio->pr_msg = msg_info.pr; 929 ctl_enqueue_isc((union ctl_io *)presio); 930 break; 931 case CTL_MSG_SYNC_FE: 932 rcv_sync_msg = 1; 933 break; 934 default: 935 printf("How did I get here?\n"); 936 } 937 } else if (event == CTL_HA_EVT_MSG_SENT) { 938 if (param != CTL_HA_STATUS_SUCCESS) { 939 printf("Bad status from ctl_ha_msg_send status %d\n", 940 param); 941 } 942 return; 943 } else if (event == CTL_HA_EVT_DISCONNECT) { 944 printf("CTL: Got a disconnect from Isc\n"); 945 return; 946 } else { 947 printf("ctl_isc_event_handler: Unknown event %d\n", event); 948 return; 949 } 950 951bailout: 952 return; 953} 954 955static void 956ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 957{ 958 struct scsi_sense_data *sense; 959 960 sense = &dest->scsiio.sense_data; 961 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 962 dest->scsiio.scsi_status = src->scsi.scsi_status; 963 dest->scsiio.sense_len = src->scsi.sense_len; 964 dest->io_hdr.status = src->hdr.status; 965} 966 967static void 968ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 969{ 970 ctl_ua_type *pu; 971 972 mtx_assert(&lun->lun_lock, MA_OWNED); 973 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 974 if (pu == NULL) 975 return; 976 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 977} 978 979static void 980ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 981{ 982 int i, j; 983 984 mtx_assert(&lun->lun_lock, MA_OWNED); 985 for (i = 0; i < CTL_MAX_PORTS; i++) { 986 if (lun->pending_ua[i] == NULL) 987 continue; 988 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 989 if (i * CTL_MAX_INIT_PER_PORT + j == except) 990 continue; 991 lun->pending_ua[i][j] |= ua; 992 } 993 } 994} 995 996static void 997ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 998{ 999 ctl_ua_type *pu; 1000 1001 mtx_assert(&lun->lun_lock, MA_OWNED); 1002 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1003 if (pu == NULL) 1004 return; 1005 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1006} 1007 1008static void 1009ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1010{ 1011 int i, j; 1012 1013 mtx_assert(&lun->lun_lock, MA_OWNED); 1014 for (i = 0; i < CTL_MAX_PORTS; i++) { 1015 if (lun->pending_ua[i] == NULL) 1016 continue; 1017 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1018 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1019 continue; 1020 lun->pending_ua[i][j] &= ~ua; 1021 } 1022 } 1023} 1024 1025static int 1026ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1027{ 1028 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1029 struct ctl_lun *lun; 1030 int error, value; 1031 1032 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1033 value = 0; 1034 else 1035 value = 1; 1036 1037 error = sysctl_handle_int(oidp, &value, 0, req); 1038 if ((error != 0) || (req->newptr == NULL)) 1039 return (error); 1040 1041 mtx_lock(&softc->ctl_lock); 1042 if (value == 0) 1043 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1044 else 1045 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1046 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1047 mtx_lock(&lun->lun_lock); 1048 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1049 mtx_unlock(&lun->lun_lock); 1050 } 1051 mtx_unlock(&softc->ctl_lock); 1052 return (0); 1053} 1054 1055static int 1056ctl_init(void) 1057{ 1058 struct ctl_softc *softc; 1059 void *other_pool; 1060 struct ctl_port *port; 1061 int i, error, retval; 1062 //int isc_retval; 1063 1064 retval = 0; 1065 ctl_pause_rtr = 0; 1066 rcv_sync_msg = 0; 1067 1068 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1069 M_WAITOK | M_ZERO); 1070 softc = control_softc; 1071 1072 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1073 "cam/ctl"); 1074 1075 softc->dev->si_drv1 = softc; 1076 1077 /* 1078 * By default, return a "bad LUN" peripheral qualifier for unknown 1079 * LUNs. The user can override this default using the tunable or 1080 * sysctl. See the comment in ctl_inquiry_std() for more details. 1081 */ 1082 softc->inquiry_pq_no_lun = 1; 1083 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1084 &softc->inquiry_pq_no_lun); 1085 sysctl_ctx_init(&softc->sysctl_ctx); 1086 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1087 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1088 CTLFLAG_RD, 0, "CAM Target Layer"); 1089 1090 if (softc->sysctl_tree == NULL) { 1091 printf("%s: unable to allocate sysctl tree\n", __func__); 1092 destroy_dev(softc->dev); 1093 free(control_softc, M_DEVBUF); 1094 control_softc = NULL; 1095 return (ENOMEM); 1096 } 1097 1098 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1099 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1100 "inquiry_pq_no_lun", CTLFLAG_RW, 1101 &softc->inquiry_pq_no_lun, 0, 1102 "Report no lun possible for invalid LUNs"); 1103 1104 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1105 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1106 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1107 softc->open_count = 0; 1108 1109 /* 1110 * Default to actually sending a SYNCHRONIZE CACHE command down to 1111 * the drive. 1112 */ 1113 softc->flags = CTL_FLAG_REAL_SYNC; 1114 1115 /* 1116 * In Copan's HA scheme, the "master" and "slave" roles are 1117 * figured out through the slot the controller is in. Although it 1118 * is an active/active system, someone has to be in charge. 1119 */ 1120 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1121 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1122 "HA head ID (0 - no HA)"); 1123 if (softc->ha_id == 0) { 1124 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1125 softc->is_single = 1; 1126 softc->port_offset = 0; 1127 } else 1128 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1129 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1130 1131 /* 1132 * XXX KDM need to figure out where we want to get our target ID 1133 * and WWID. Is it different on each port? 1134 */ 1135 softc->target.id = 0; 1136 softc->target.wwid[0] = 0x12345678; 1137 softc->target.wwid[1] = 0x87654321; 1138 STAILQ_INIT(&softc->lun_list); 1139 STAILQ_INIT(&softc->pending_lun_queue); 1140 STAILQ_INIT(&softc->fe_list); 1141 STAILQ_INIT(&softc->port_list); 1142 STAILQ_INIT(&softc->be_list); 1143 ctl_tpc_init(softc); 1144 1145 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1146 &other_pool) != 0) 1147 { 1148 printf("ctl: can't allocate %d entry other SC pool, " 1149 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1150 return (ENOMEM); 1151 } 1152 softc->othersc_pool = other_pool; 1153 1154 if (worker_threads <= 0) 1155 worker_threads = max(1, mp_ncpus / 4); 1156 if (worker_threads > CTL_MAX_THREADS) 1157 worker_threads = CTL_MAX_THREADS; 1158 1159 for (i = 0; i < worker_threads; i++) { 1160 struct ctl_thread *thr = &softc->threads[i]; 1161 1162 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1163 thr->ctl_softc = softc; 1164 STAILQ_INIT(&thr->incoming_queue); 1165 STAILQ_INIT(&thr->rtr_queue); 1166 STAILQ_INIT(&thr->done_queue); 1167 STAILQ_INIT(&thr->isc_queue); 1168 1169 error = kproc_kthread_add(ctl_work_thread, thr, 1170 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1171 if (error != 0) { 1172 printf("error creating CTL work thread!\n"); 1173 ctl_pool_free(other_pool); 1174 return (error); 1175 } 1176 } 1177 error = kproc_kthread_add(ctl_lun_thread, softc, 1178 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1179 if (error != 0) { 1180 printf("error creating CTL lun thread!\n"); 1181 ctl_pool_free(other_pool); 1182 return (error); 1183 } 1184 error = kproc_kthread_add(ctl_thresh_thread, softc, 1185 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1186 if (error != 0) { 1187 printf("error creating CTL threshold thread!\n"); 1188 ctl_pool_free(other_pool); 1189 return (error); 1190 } 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer loaded\n"); 1193 1194 /* 1195 * Initialize the ioctl front end. 1196 */ 1197 ctl_frontend_register(&ioctl_frontend); 1198 port = &softc->ioctl_info.port; 1199 port->frontend = &ioctl_frontend; 1200 sprintf(softc->ioctl_info.port_name, "ioctl"); 1201 port->port_type = CTL_PORT_IOCTL; 1202 port->num_requested_ctl_io = 100; 1203 port->port_name = softc->ioctl_info.port_name; 1204 port->port_online = ctl_ioctl_online; 1205 port->port_offline = ctl_ioctl_offline; 1206 port->onoff_arg = &softc->ioctl_info; 1207 port->lun_enable = ctl_ioctl_lun_enable; 1208 port->lun_disable = ctl_ioctl_lun_disable; 1209 port->targ_lun_arg = &softc->ioctl_info; 1210 port->fe_datamove = ctl_ioctl_datamove; 1211 port->fe_done = ctl_ioctl_done; 1212 port->max_targets = 15; 1213 port->max_target_id = 15; 1214 1215 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1216 printf("ctl: ioctl front end registration failed, will " 1217 "continue anyway\n"); 1218 } 1219 1220 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1221 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1222 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1223 1224#ifdef CTL_IO_DELAY 1225 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1226 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1227 sizeof(struct callout), CTL_TIMER_BYTES); 1228 return (EINVAL); 1229 } 1230#endif /* CTL_IO_DELAY */ 1231 1232 return (0); 1233} 1234 1235void 1236ctl_shutdown(void) 1237{ 1238 struct ctl_softc *softc; 1239 struct ctl_lun *lun, *next_lun; 1240 1241 softc = (struct ctl_softc *)control_softc; 1242 1243 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1244 printf("ctl: ioctl front end deregistration failed\n"); 1245 1246 mtx_lock(&softc->ctl_lock); 1247 1248 /* 1249 * Free up each LUN. 1250 */ 1251 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1252 next_lun = STAILQ_NEXT(lun, links); 1253 ctl_free_lun(lun); 1254 } 1255 1256 mtx_unlock(&softc->ctl_lock); 1257 1258 ctl_frontend_deregister(&ioctl_frontend); 1259 1260#if 0 1261 ctl_shutdown_thread(softc->work_thread); 1262 mtx_destroy(&softc->queue_lock); 1263#endif 1264 1265 ctl_tpc_shutdown(softc); 1266 uma_zdestroy(softc->io_zone); 1267 mtx_destroy(&softc->ctl_lock); 1268 1269 destroy_dev(softc->dev); 1270 1271 sysctl_ctx_free(&softc->sysctl_ctx); 1272 1273 free(control_softc, M_DEVBUF); 1274 control_softc = NULL; 1275 1276 if (bootverbose) 1277 printf("ctl: CAM Target Layer unloaded\n"); 1278} 1279 1280static int 1281ctl_module_event_handler(module_t mod, int what, void *arg) 1282{ 1283 1284 switch (what) { 1285 case MOD_LOAD: 1286 return (ctl_init()); 1287 case MOD_UNLOAD: 1288 return (EBUSY); 1289 default: 1290 return (EOPNOTSUPP); 1291 } 1292} 1293 1294/* 1295 * XXX KDM should we do some access checks here? Bump a reference count to 1296 * prevent a CTL module from being unloaded while someone has it open? 1297 */ 1298static int 1299ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1300{ 1301 return (0); 1302} 1303 1304static int 1305ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1306{ 1307 return (0); 1308} 1309 1310int 1311ctl_port_enable(ctl_port_type port_type) 1312{ 1313 struct ctl_softc *softc = control_softc; 1314 struct ctl_port *port; 1315 1316 if (softc->is_single == 0) { 1317 union ctl_ha_msg msg_info; 1318 int isc_retval; 1319 1320#if 0 1321 printf("%s: HA mode, synchronizing frontend enable\n", 1322 __func__); 1323#endif 1324 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1325 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1326 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1327 printf("Sync msg send error retval %d\n", isc_retval); 1328 } 1329 if (!rcv_sync_msg) { 1330 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1331 sizeof(msg_info), 1); 1332 } 1333#if 0 1334 printf("CTL:Frontend Enable\n"); 1335 } else { 1336 printf("%s: single mode, skipping frontend synchronization\n", 1337 __func__); 1338#endif 1339 } 1340 1341 STAILQ_FOREACH(port, &softc->port_list, links) { 1342 if (port_type & port->port_type) 1343 { 1344#if 0 1345 printf("port %d\n", port->targ_port); 1346#endif 1347 ctl_port_online(port); 1348 } 1349 } 1350 1351 return (0); 1352} 1353 1354int 1355ctl_port_disable(ctl_port_type port_type) 1356{ 1357 struct ctl_softc *softc; 1358 struct ctl_port *port; 1359 1360 softc = control_softc; 1361 1362 STAILQ_FOREACH(port, &softc->port_list, links) { 1363 if (port_type & port->port_type) 1364 ctl_port_offline(port); 1365 } 1366 1367 return (0); 1368} 1369 1370/* 1371 * Returns 0 for success, 1 for failure. 1372 * Currently the only failure mode is if there aren't enough entries 1373 * allocated. So, in case of a failure, look at num_entries_dropped, 1374 * reallocate and try again. 1375 */ 1376int 1377ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1378 int *num_entries_filled, int *num_entries_dropped, 1379 ctl_port_type port_type, int no_virtual) 1380{ 1381 struct ctl_softc *softc; 1382 struct ctl_port *port; 1383 int entries_dropped, entries_filled; 1384 int retval; 1385 int i; 1386 1387 softc = control_softc; 1388 1389 retval = 0; 1390 entries_filled = 0; 1391 entries_dropped = 0; 1392 1393 i = 0; 1394 mtx_lock(&softc->ctl_lock); 1395 STAILQ_FOREACH(port, &softc->port_list, links) { 1396 struct ctl_port_entry *entry; 1397 1398 if ((port->port_type & port_type) == 0) 1399 continue; 1400 1401 if ((no_virtual != 0) 1402 && (port->virtual_port != 0)) 1403 continue; 1404 1405 if (entries_filled >= num_entries_alloced) { 1406 entries_dropped++; 1407 continue; 1408 } 1409 entry = &entries[i]; 1410 1411 entry->port_type = port->port_type; 1412 strlcpy(entry->port_name, port->port_name, 1413 sizeof(entry->port_name)); 1414 entry->physical_port = port->physical_port; 1415 entry->virtual_port = port->virtual_port; 1416 entry->wwnn = port->wwnn; 1417 entry->wwpn = port->wwpn; 1418 1419 i++; 1420 entries_filled++; 1421 } 1422 1423 mtx_unlock(&softc->ctl_lock); 1424 1425 if (entries_dropped > 0) 1426 retval = 1; 1427 1428 *num_entries_dropped = entries_dropped; 1429 *num_entries_filled = entries_filled; 1430 1431 return (retval); 1432} 1433 1434static void 1435ctl_ioctl_online(void *arg) 1436{ 1437 struct ctl_ioctl_info *ioctl_info; 1438 1439 ioctl_info = (struct ctl_ioctl_info *)arg; 1440 1441 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1442} 1443 1444static void 1445ctl_ioctl_offline(void *arg) 1446{ 1447 struct ctl_ioctl_info *ioctl_info; 1448 1449 ioctl_info = (struct ctl_ioctl_info *)arg; 1450 1451 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1452} 1453 1454/* 1455 * Remove an initiator by port number and initiator ID. 1456 * Returns 0 for success, -1 for failure. 1457 */ 1458int 1459ctl_remove_initiator(struct ctl_port *port, int iid) 1460{ 1461 struct ctl_softc *softc = control_softc; 1462 1463 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1464 1465 if (iid > CTL_MAX_INIT_PER_PORT) { 1466 printf("%s: initiator ID %u > maximun %u!\n", 1467 __func__, iid, CTL_MAX_INIT_PER_PORT); 1468 return (-1); 1469 } 1470 1471 mtx_lock(&softc->ctl_lock); 1472 port->wwpn_iid[iid].in_use--; 1473 port->wwpn_iid[iid].last_use = time_uptime; 1474 mtx_unlock(&softc->ctl_lock); 1475 1476 return (0); 1477} 1478 1479/* 1480 * Add an initiator to the initiator map. 1481 * Returns iid for success, < 0 for failure. 1482 */ 1483int 1484ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1485{ 1486 struct ctl_softc *softc = control_softc; 1487 time_t best_time; 1488 int i, best; 1489 1490 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1491 1492 if (iid >= CTL_MAX_INIT_PER_PORT) { 1493 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1494 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1495 free(name, M_CTL); 1496 return (-1); 1497 } 1498 1499 mtx_lock(&softc->ctl_lock); 1500 1501 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1502 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1503 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1504 iid = i; 1505 break; 1506 } 1507 if (name != NULL && port->wwpn_iid[i].name != NULL && 1508 strcmp(name, port->wwpn_iid[i].name) == 0) { 1509 iid = i; 1510 break; 1511 } 1512 } 1513 } 1514 1515 if (iid < 0) { 1516 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1517 if (port->wwpn_iid[i].in_use == 0 && 1518 port->wwpn_iid[i].wwpn == 0 && 1519 port->wwpn_iid[i].name == NULL) { 1520 iid = i; 1521 break; 1522 } 1523 } 1524 } 1525 1526 if (iid < 0) { 1527 best = -1; 1528 best_time = INT32_MAX; 1529 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1530 if (port->wwpn_iid[i].in_use == 0) { 1531 if (port->wwpn_iid[i].last_use < best_time) { 1532 best = i; 1533 best_time = port->wwpn_iid[i].last_use; 1534 } 1535 } 1536 } 1537 iid = best; 1538 } 1539 1540 if (iid < 0) { 1541 mtx_unlock(&softc->ctl_lock); 1542 free(name, M_CTL); 1543 return (-2); 1544 } 1545 1546 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1547 /* 1548 * This is not an error yet. 1549 */ 1550 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1551#if 0 1552 printf("%s: port %d iid %u WWPN %#jx arrived" 1553 " again\n", __func__, port->targ_port, 1554 iid, (uintmax_t)wwpn); 1555#endif 1556 goto take; 1557 } 1558 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1559 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1560#if 0 1561 printf("%s: port %d iid %u name '%s' arrived" 1562 " again\n", __func__, port->targ_port, 1563 iid, name); 1564#endif 1565 goto take; 1566 } 1567 1568 /* 1569 * This is an error, but what do we do about it? The 1570 * driver is telling us we have a new WWPN for this 1571 * initiator ID, so we pretty much need to use it. 1572 */ 1573 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1574 " but WWPN %#jx '%s' is still at that address\n", 1575 __func__, port->targ_port, iid, wwpn, name, 1576 (uintmax_t)port->wwpn_iid[iid].wwpn, 1577 port->wwpn_iid[iid].name); 1578 1579 /* 1580 * XXX KDM clear have_ca and ua_pending on each LUN for 1581 * this initiator. 1582 */ 1583 } 1584take: 1585 free(port->wwpn_iid[iid].name, M_CTL); 1586 port->wwpn_iid[iid].name = name; 1587 port->wwpn_iid[iid].wwpn = wwpn; 1588 port->wwpn_iid[iid].in_use++; 1589 mtx_unlock(&softc->ctl_lock); 1590 1591 return (iid); 1592} 1593 1594static int 1595ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1596{ 1597 int len; 1598 1599 switch (port->port_type) { 1600 case CTL_PORT_FC: 1601 { 1602 struct scsi_transportid_fcp *id = 1603 (struct scsi_transportid_fcp *)buf; 1604 if (port->wwpn_iid[iid].wwpn == 0) 1605 return (0); 1606 memset(id, 0, sizeof(*id)); 1607 id->format_protocol = SCSI_PROTO_FC; 1608 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1609 return (sizeof(*id)); 1610 } 1611 case CTL_PORT_ISCSI: 1612 { 1613 struct scsi_transportid_iscsi_port *id = 1614 (struct scsi_transportid_iscsi_port *)buf; 1615 if (port->wwpn_iid[iid].name == NULL) 1616 return (0); 1617 memset(id, 0, 256); 1618 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1619 SCSI_PROTO_ISCSI; 1620 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1621 len = roundup2(min(len, 252), 4); 1622 scsi_ulto2b(len, id->additional_length); 1623 return (sizeof(*id) + len); 1624 } 1625 case CTL_PORT_SAS: 1626 { 1627 struct scsi_transportid_sas *id = 1628 (struct scsi_transportid_sas *)buf; 1629 if (port->wwpn_iid[iid].wwpn == 0) 1630 return (0); 1631 memset(id, 0, sizeof(*id)); 1632 id->format_protocol = SCSI_PROTO_SAS; 1633 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1634 return (sizeof(*id)); 1635 } 1636 default: 1637 { 1638 struct scsi_transportid_spi *id = 1639 (struct scsi_transportid_spi *)buf; 1640 memset(id, 0, sizeof(*id)); 1641 id->format_protocol = SCSI_PROTO_SPI; 1642 scsi_ulto2b(iid, id->scsi_addr); 1643 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1644 return (sizeof(*id)); 1645 } 1646 } 1647} 1648 1649static int 1650ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1651{ 1652 return (0); 1653} 1654 1655static int 1656ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1657{ 1658 return (0); 1659} 1660 1661/* 1662 * Data movement routine for the CTL ioctl frontend port. 1663 */ 1664static int 1665ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1666{ 1667 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1668 struct ctl_sg_entry ext_entry, kern_entry; 1669 int ext_sglen, ext_sg_entries, kern_sg_entries; 1670 int ext_sg_start, ext_offset; 1671 int len_to_copy, len_copied; 1672 int kern_watermark, ext_watermark; 1673 int ext_sglist_malloced; 1674 int i, j; 1675 1676 ext_sglist_malloced = 0; 1677 ext_sg_start = 0; 1678 ext_offset = 0; 1679 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1681 1682 /* 1683 * If this flag is set, fake the data transfer. 1684 */ 1685 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1686 ctsio->ext_data_filled = ctsio->ext_data_len; 1687 goto bailout; 1688 } 1689 1690 /* 1691 * To simplify things here, if we have a single buffer, stick it in 1692 * a S/G entry and just make it a single entry S/G list. 1693 */ 1694 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1695 int len_seen; 1696 1697 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1698 1699 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1700 M_WAITOK); 1701 ext_sglist_malloced = 1; 1702 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1703 ext_sglen) != 0) { 1704 ctl_set_internal_failure(ctsio, 1705 /*sks_valid*/ 0, 1706 /*retry_count*/ 0); 1707 goto bailout; 1708 } 1709 ext_sg_entries = ctsio->ext_sg_entries; 1710 len_seen = 0; 1711 for (i = 0; i < ext_sg_entries; i++) { 1712 if ((len_seen + ext_sglist[i].len) >= 1713 ctsio->ext_data_filled) { 1714 ext_sg_start = i; 1715 ext_offset = ctsio->ext_data_filled - len_seen; 1716 break; 1717 } 1718 len_seen += ext_sglist[i].len; 1719 } 1720 } else { 1721 ext_sglist = &ext_entry; 1722 ext_sglist->addr = ctsio->ext_data_ptr; 1723 ext_sglist->len = ctsio->ext_data_len; 1724 ext_sg_entries = 1; 1725 ext_sg_start = 0; 1726 ext_offset = ctsio->ext_data_filled; 1727 } 1728 1729 if (ctsio->kern_sg_entries > 0) { 1730 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1731 kern_sg_entries = ctsio->kern_sg_entries; 1732 } else { 1733 kern_sglist = &kern_entry; 1734 kern_sglist->addr = ctsio->kern_data_ptr; 1735 kern_sglist->len = ctsio->kern_data_len; 1736 kern_sg_entries = 1; 1737 } 1738 1739 1740 kern_watermark = 0; 1741 ext_watermark = ext_offset; 1742 len_copied = 0; 1743 for (i = ext_sg_start, j = 0; 1744 i < ext_sg_entries && j < kern_sg_entries;) { 1745 uint8_t *ext_ptr, *kern_ptr; 1746 1747 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1748 kern_sglist[j].len - kern_watermark); 1749 1750 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1751 ext_ptr = ext_ptr + ext_watermark; 1752 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1753 /* 1754 * XXX KDM fix this! 1755 */ 1756 panic("need to implement bus address support"); 1757#if 0 1758 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1759#endif 1760 } else 1761 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1762 kern_ptr = kern_ptr + kern_watermark; 1763 1764 kern_watermark += len_to_copy; 1765 ext_watermark += len_to_copy; 1766 1767 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1768 CTL_FLAG_DATA_IN) { 1769 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1770 "bytes to user\n", len_to_copy)); 1771 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1772 "to %p\n", kern_ptr, ext_ptr)); 1773 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1774 ctl_set_internal_failure(ctsio, 1775 /*sks_valid*/ 0, 1776 /*retry_count*/ 0); 1777 goto bailout; 1778 } 1779 } else { 1780 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1781 "bytes from user\n", len_to_copy)); 1782 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1783 "to %p\n", ext_ptr, kern_ptr)); 1784 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1785 ctl_set_internal_failure(ctsio, 1786 /*sks_valid*/ 0, 1787 /*retry_count*/0); 1788 goto bailout; 1789 } 1790 } 1791 1792 len_copied += len_to_copy; 1793 1794 if (ext_sglist[i].len == ext_watermark) { 1795 i++; 1796 ext_watermark = 0; 1797 } 1798 1799 if (kern_sglist[j].len == kern_watermark) { 1800 j++; 1801 kern_watermark = 0; 1802 } 1803 } 1804 1805 ctsio->ext_data_filled += len_copied; 1806 1807 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1808 "kern_sg_entries: %d\n", ext_sg_entries, 1809 kern_sg_entries)); 1810 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1811 "kern_data_len = %d\n", ctsio->ext_data_len, 1812 ctsio->kern_data_len)); 1813 1814 1815 /* XXX KDM set residual?? */ 1816bailout: 1817 1818 if (ext_sglist_malloced != 0) 1819 free(ext_sglist, M_CTL); 1820 1821 return (CTL_RETVAL_COMPLETE); 1822} 1823 1824/* 1825 * Serialize a command that went down the "wrong" side, and so was sent to 1826 * this controller for execution. The logic is a little different than the 1827 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1828 * sent back to the other side, but in the success case, we execute the 1829 * command on this side (XFER mode) or tell the other side to execute it 1830 * (SER_ONLY mode). 1831 */ 1832static int 1833ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1834{ 1835 struct ctl_softc *ctl_softc; 1836 union ctl_ha_msg msg_info; 1837 struct ctl_lun *lun; 1838 int retval = 0; 1839 uint32_t targ_lun; 1840 1841 ctl_softc = control_softc; 1842 1843 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1844 lun = ctl_softc->ctl_luns[targ_lun]; 1845 if (lun==NULL) 1846 { 1847 /* 1848 * Why isn't LUN defined? The other side wouldn't 1849 * send a cmd if the LUN is undefined. 1850 */ 1851 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1852 1853 /* "Logical unit not supported" */ 1854 ctl_set_sense_data(&msg_info.scsi.sense_data, 1855 lun, 1856 /*sense_format*/SSD_TYPE_NONE, 1857 /*current_error*/ 1, 1858 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1859 /*asc*/ 0x25, 1860 /*ascq*/ 0x00, 1861 SSD_ELEM_NONE); 1862 1863 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1864 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1865 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1866 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1867 msg_info.hdr.serializing_sc = NULL; 1868 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 return(1); 1873 1874 } 1875 1876 mtx_lock(&lun->lun_lock); 1877 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1878 1879 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1880 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1881 ooa_links))) { 1882 case CTL_ACTION_BLOCK: 1883 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1884 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1885 blocked_links); 1886 break; 1887 case CTL_ACTION_PASS: 1888 case CTL_ACTION_SKIP: 1889 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1890 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1891 ctl_enqueue_rtr((union ctl_io *)ctsio); 1892 } else { 1893 1894 /* send msg back to other side */ 1895 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1896 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1897 msg_info.hdr.msg_type = CTL_MSG_R2R; 1898#if 0 1899 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1900#endif 1901 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1902 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1903 } 1904 } 1905 break; 1906 case CTL_ACTION_OVERLAP: 1907 /* OVERLAPPED COMMANDS ATTEMPTED */ 1908 ctl_set_sense_data(&msg_info.scsi.sense_data, 1909 lun, 1910 /*sense_format*/SSD_TYPE_NONE, 1911 /*current_error*/ 1, 1912 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1913 /*asc*/ 0x4E, 1914 /*ascq*/ 0x00, 1915 SSD_ELEM_NONE); 1916 1917 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1918 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1919 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1920 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1921 msg_info.hdr.serializing_sc = NULL; 1922 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1923#if 0 1924 printf("BAD JUJU:Major Bummer Overlap\n"); 1925#endif 1926 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1927 retval = 1; 1928 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1929 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1930 } 1931 break; 1932 case CTL_ACTION_OVERLAP_TAG: 1933 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1934 ctl_set_sense_data(&msg_info.scsi.sense_data, 1935 lun, 1936 /*sense_format*/SSD_TYPE_NONE, 1937 /*current_error*/ 1, 1938 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1939 /*asc*/ 0x4D, 1940 /*ascq*/ ctsio->tag_num & 0xff, 1941 SSD_ELEM_NONE); 1942 1943 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1944 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1945 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1946 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1947 msg_info.hdr.serializing_sc = NULL; 1948 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1949#if 0 1950 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1951#endif 1952 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1953 retval = 1; 1954 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1955 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1956 } 1957 break; 1958 case CTL_ACTION_ERROR: 1959 default: 1960 /* "Internal target failure" */ 1961 ctl_set_sense_data(&msg_info.scsi.sense_data, 1962 lun, 1963 /*sense_format*/SSD_TYPE_NONE, 1964 /*current_error*/ 1, 1965 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1966 /*asc*/ 0x44, 1967 /*ascq*/ 0x00, 1968 SSD_ELEM_NONE); 1969 1970 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1971 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1972 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1973 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1974 msg_info.hdr.serializing_sc = NULL; 1975 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1976#if 0 1977 printf("BAD JUJU:Major Bummer HW Error\n"); 1978#endif 1979 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1980 retval = 1; 1981 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1982 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1983 } 1984 break; 1985 } 1986 mtx_unlock(&lun->lun_lock); 1987 return (retval); 1988} 1989 1990static int 1991ctl_ioctl_submit_wait(union ctl_io *io) 1992{ 1993 struct ctl_fe_ioctl_params params; 1994 ctl_fe_ioctl_state last_state; 1995 int done, retval; 1996 1997 retval = 0; 1998 1999 bzero(¶ms, sizeof(params)); 2000 2001 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2002 cv_init(¶ms.sem, "ctlioccv"); 2003 params.state = CTL_IOCTL_INPROG; 2004 last_state = params.state; 2005 2006 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2007 2008 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2009 2010 /* This shouldn't happen */ 2011 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2012 return (retval); 2013 2014 done = 0; 2015 2016 do { 2017 mtx_lock(¶ms.ioctl_mtx); 2018 /* 2019 * Check the state here, and don't sleep if the state has 2020 * already changed (i.e. wakeup has already occured, but we 2021 * weren't waiting yet). 2022 */ 2023 if (params.state == last_state) { 2024 /* XXX KDM cv_wait_sig instead? */ 2025 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2026 } 2027 last_state = params.state; 2028 2029 switch (params.state) { 2030 case CTL_IOCTL_INPROG: 2031 /* Why did we wake up? */ 2032 /* XXX KDM error here? */ 2033 mtx_unlock(¶ms.ioctl_mtx); 2034 break; 2035 case CTL_IOCTL_DATAMOVE: 2036 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2037 2038 /* 2039 * change last_state back to INPROG to avoid 2040 * deadlock on subsequent data moves. 2041 */ 2042 params.state = last_state = CTL_IOCTL_INPROG; 2043 2044 mtx_unlock(¶ms.ioctl_mtx); 2045 ctl_ioctl_do_datamove(&io->scsiio); 2046 /* 2047 * Note that in some cases, most notably writes, 2048 * this will queue the I/O and call us back later. 2049 * In other cases, generally reads, this routine 2050 * will immediately call back and wake us up, 2051 * probably using our own context. 2052 */ 2053 io->scsiio.be_move_done(io); 2054 break; 2055 case CTL_IOCTL_DONE: 2056 mtx_unlock(¶ms.ioctl_mtx); 2057 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2058 done = 1; 2059 break; 2060 default: 2061 mtx_unlock(¶ms.ioctl_mtx); 2062 /* XXX KDM error here? */ 2063 break; 2064 } 2065 } while (done == 0); 2066 2067 mtx_destroy(¶ms.ioctl_mtx); 2068 cv_destroy(¶ms.sem); 2069 2070 return (CTL_RETVAL_COMPLETE); 2071} 2072 2073static void 2074ctl_ioctl_datamove(union ctl_io *io) 2075{ 2076 struct ctl_fe_ioctl_params *params; 2077 2078 params = (struct ctl_fe_ioctl_params *) 2079 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2080 2081 mtx_lock(¶ms->ioctl_mtx); 2082 params->state = CTL_IOCTL_DATAMOVE; 2083 cv_broadcast(¶ms->sem); 2084 mtx_unlock(¶ms->ioctl_mtx); 2085} 2086 2087static void 2088ctl_ioctl_done(union ctl_io *io) 2089{ 2090 struct ctl_fe_ioctl_params *params; 2091 2092 params = (struct ctl_fe_ioctl_params *) 2093 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2094 2095 mtx_lock(¶ms->ioctl_mtx); 2096 params->state = CTL_IOCTL_DONE; 2097 cv_broadcast(¶ms->sem); 2098 mtx_unlock(¶ms->ioctl_mtx); 2099} 2100 2101static void 2102ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2103{ 2104 struct ctl_fe_ioctl_startstop_info *sd_info; 2105 2106 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2107 2108 sd_info->hs_info.status = metatask->status; 2109 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2110 sd_info->hs_info.luns_complete = 2111 metatask->taskinfo.startstop.luns_complete; 2112 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2113 2114 cv_broadcast(&sd_info->sem); 2115} 2116 2117static void 2118ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2119{ 2120 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2121 2122 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2123 2124 mtx_lock(fe_bbr_info->lock); 2125 fe_bbr_info->bbr_info->status = metatask->status; 2126 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2127 fe_bbr_info->wakeup_done = 1; 2128 mtx_unlock(fe_bbr_info->lock); 2129 2130 cv_broadcast(&fe_bbr_info->sem); 2131} 2132 2133/* 2134 * Returns 0 for success, errno for failure. 2135 */ 2136static int 2137ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2138 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2139{ 2140 union ctl_io *io; 2141 int retval; 2142 2143 retval = 0; 2144 2145 mtx_lock(&lun->lun_lock); 2146 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2147 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2148 ooa_links)) { 2149 struct ctl_ooa_entry *entry; 2150 2151 /* 2152 * If we've got more than we can fit, just count the 2153 * remaining entries. 2154 */ 2155 if (*cur_fill_num >= ooa_hdr->alloc_num) 2156 continue; 2157 2158 entry = &kern_entries[*cur_fill_num]; 2159 2160 entry->tag_num = io->scsiio.tag_num; 2161 entry->lun_num = lun->lun; 2162#ifdef CTL_TIME_IO 2163 entry->start_bt = io->io_hdr.start_bt; 2164#endif 2165 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2166 entry->cdb_len = io->scsiio.cdb_len; 2167 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2168 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2169 2170 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2171 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2172 2173 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2174 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2175 2176 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2177 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2178 2179 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2180 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2181 } 2182 mtx_unlock(&lun->lun_lock); 2183 2184 return (retval); 2185} 2186 2187static void * 2188ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2189 size_t error_str_len) 2190{ 2191 void *kptr; 2192 2193 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2194 2195 if (copyin(user_addr, kptr, len) != 0) { 2196 snprintf(error_str, error_str_len, "Error copying %d bytes " 2197 "from user address %p to kernel address %p", len, 2198 user_addr, kptr); 2199 free(kptr, M_CTL); 2200 return (NULL); 2201 } 2202 2203 return (kptr); 2204} 2205 2206static void 2207ctl_free_args(int num_args, struct ctl_be_arg *args) 2208{ 2209 int i; 2210 2211 if (args == NULL) 2212 return; 2213 2214 for (i = 0; i < num_args; i++) { 2215 free(args[i].kname, M_CTL); 2216 free(args[i].kvalue, M_CTL); 2217 } 2218 2219 free(args, M_CTL); 2220} 2221 2222static struct ctl_be_arg * 2223ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2224 char *error_str, size_t error_str_len) 2225{ 2226 struct ctl_be_arg *args; 2227 int i; 2228 2229 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2230 error_str, error_str_len); 2231 2232 if (args == NULL) 2233 goto bailout; 2234 2235 for (i = 0; i < num_args; i++) { 2236 args[i].kname = NULL; 2237 args[i].kvalue = NULL; 2238 } 2239 2240 for (i = 0; i < num_args; i++) { 2241 uint8_t *tmpptr; 2242 2243 args[i].kname = ctl_copyin_alloc(args[i].name, 2244 args[i].namelen, error_str, error_str_len); 2245 if (args[i].kname == NULL) 2246 goto bailout; 2247 2248 if (args[i].kname[args[i].namelen - 1] != '\0') { 2249 snprintf(error_str, error_str_len, "Argument %d " 2250 "name is not NUL-terminated", i); 2251 goto bailout; 2252 } 2253 2254 if (args[i].flags & CTL_BEARG_RD) { 2255 tmpptr = ctl_copyin_alloc(args[i].value, 2256 args[i].vallen, error_str, error_str_len); 2257 if (tmpptr == NULL) 2258 goto bailout; 2259 if ((args[i].flags & CTL_BEARG_ASCII) 2260 && (tmpptr[args[i].vallen - 1] != '\0')) { 2261 snprintf(error_str, error_str_len, "Argument " 2262 "%d value is not NUL-terminated", i); 2263 goto bailout; 2264 } 2265 args[i].kvalue = tmpptr; 2266 } else { 2267 args[i].kvalue = malloc(args[i].vallen, 2268 M_CTL, M_WAITOK | M_ZERO); 2269 } 2270 } 2271 2272 return (args); 2273bailout: 2274 2275 ctl_free_args(num_args, args); 2276 2277 return (NULL); 2278} 2279 2280static void 2281ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2282{ 2283 int i; 2284 2285 for (i = 0; i < num_args; i++) { 2286 if (args[i].flags & CTL_BEARG_WR) 2287 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2288 } 2289} 2290 2291/* 2292 * Escape characters that are illegal or not recommended in XML. 2293 */ 2294int 2295ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2296{ 2297 char *end = str + size; 2298 int retval; 2299 2300 retval = 0; 2301 2302 for (; *str && str < end; str++) { 2303 switch (*str) { 2304 case '&': 2305 retval = sbuf_printf(sb, "&"); 2306 break; 2307 case '>': 2308 retval = sbuf_printf(sb, ">"); 2309 break; 2310 case '<': 2311 retval = sbuf_printf(sb, "<"); 2312 break; 2313 default: 2314 retval = sbuf_putc(sb, *str); 2315 break; 2316 } 2317 2318 if (retval != 0) 2319 break; 2320 2321 } 2322 2323 return (retval); 2324} 2325 2326static void 2327ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2328{ 2329 struct scsi_vpd_id_descriptor *desc; 2330 int i; 2331 2332 if (id == NULL || id->len < 4) 2333 return; 2334 desc = (struct scsi_vpd_id_descriptor *)id->data; 2335 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2336 case SVPD_ID_TYPE_T10: 2337 sbuf_printf(sb, "t10."); 2338 break; 2339 case SVPD_ID_TYPE_EUI64: 2340 sbuf_printf(sb, "eui."); 2341 break; 2342 case SVPD_ID_TYPE_NAA: 2343 sbuf_printf(sb, "naa."); 2344 break; 2345 case SVPD_ID_TYPE_SCSI_NAME: 2346 break; 2347 } 2348 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2349 case SVPD_ID_CODESET_BINARY: 2350 for (i = 0; i < desc->length; i++) 2351 sbuf_printf(sb, "%02x", desc->identifier[i]); 2352 break; 2353 case SVPD_ID_CODESET_ASCII: 2354 sbuf_printf(sb, "%.*s", (int)desc->length, 2355 (char *)desc->identifier); 2356 break; 2357 case SVPD_ID_CODESET_UTF8: 2358 sbuf_printf(sb, "%s", (char *)desc->identifier); 2359 break; 2360 } 2361} 2362 2363static int 2364ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2365 struct thread *td) 2366{ 2367 struct ctl_softc *softc; 2368 int retval; 2369 2370 softc = control_softc; 2371 2372 retval = 0; 2373 2374 switch (cmd) { 2375 case CTL_IO: { 2376 union ctl_io *io; 2377 void *pool_tmp; 2378 2379 /* 2380 * If we haven't been "enabled", don't allow any SCSI I/O 2381 * to this FETD. 2382 */ 2383 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2384 retval = EPERM; 2385 break; 2386 } 2387 2388 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2389 2390 /* 2391 * Need to save the pool reference so it doesn't get 2392 * spammed by the user's ctl_io. 2393 */ 2394 pool_tmp = io->io_hdr.pool; 2395 memcpy(io, (void *)addr, sizeof(*io)); 2396 io->io_hdr.pool = pool_tmp; 2397 2398 /* 2399 * No status yet, so make sure the status is set properly. 2400 */ 2401 io->io_hdr.status = CTL_STATUS_NONE; 2402 2403 /* 2404 * The user sets the initiator ID, target and LUN IDs. 2405 */ 2406 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2407 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2408 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2409 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2410 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2411 2412 retval = ctl_ioctl_submit_wait(io); 2413 2414 if (retval != 0) { 2415 ctl_free_io(io); 2416 break; 2417 } 2418 2419 memcpy((void *)addr, io, sizeof(*io)); 2420 2421 /* return this to our pool */ 2422 ctl_free_io(io); 2423 2424 break; 2425 } 2426 case CTL_ENABLE_PORT: 2427 case CTL_DISABLE_PORT: 2428 case CTL_SET_PORT_WWNS: { 2429 struct ctl_port *port; 2430 struct ctl_port_entry *entry; 2431 2432 entry = (struct ctl_port_entry *)addr; 2433 2434 mtx_lock(&softc->ctl_lock); 2435 STAILQ_FOREACH(port, &softc->port_list, links) { 2436 int action, done; 2437 2438 action = 0; 2439 done = 0; 2440 2441 if ((entry->port_type == CTL_PORT_NONE) 2442 && (entry->targ_port == port->targ_port)) { 2443 /* 2444 * If the user only wants to enable or 2445 * disable or set WWNs on a specific port, 2446 * do the operation and we're done. 2447 */ 2448 action = 1; 2449 done = 1; 2450 } else if (entry->port_type & port->port_type) { 2451 /* 2452 * Compare the user's type mask with the 2453 * particular frontend type to see if we 2454 * have a match. 2455 */ 2456 action = 1; 2457 done = 0; 2458 2459 /* 2460 * Make sure the user isn't trying to set 2461 * WWNs on multiple ports at the same time. 2462 */ 2463 if (cmd == CTL_SET_PORT_WWNS) { 2464 printf("%s: Can't set WWNs on " 2465 "multiple ports\n", __func__); 2466 retval = EINVAL; 2467 break; 2468 } 2469 } 2470 if (action != 0) { 2471 /* 2472 * XXX KDM we have to drop the lock here, 2473 * because the online/offline operations 2474 * can potentially block. We need to 2475 * reference count the frontends so they 2476 * can't go away, 2477 */ 2478 mtx_unlock(&softc->ctl_lock); 2479 2480 if (cmd == CTL_ENABLE_PORT) { 2481 struct ctl_lun *lun; 2482 2483 STAILQ_FOREACH(lun, &softc->lun_list, 2484 links) { 2485 port->lun_enable(port->targ_lun_arg, 2486 lun->target, 2487 lun->lun); 2488 } 2489 2490 ctl_port_online(port); 2491 } else if (cmd == CTL_DISABLE_PORT) { 2492 struct ctl_lun *lun; 2493 2494 ctl_port_offline(port); 2495 2496 STAILQ_FOREACH(lun, &softc->lun_list, 2497 links) { 2498 port->lun_disable( 2499 port->targ_lun_arg, 2500 lun->target, 2501 lun->lun); 2502 } 2503 } 2504 2505 mtx_lock(&softc->ctl_lock); 2506 2507 if (cmd == CTL_SET_PORT_WWNS) 2508 ctl_port_set_wwns(port, 2509 (entry->flags & CTL_PORT_WWNN_VALID) ? 2510 1 : 0, entry->wwnn, 2511 (entry->flags & CTL_PORT_WWPN_VALID) ? 2512 1 : 0, entry->wwpn); 2513 } 2514 if (done != 0) 2515 break; 2516 } 2517 mtx_unlock(&softc->ctl_lock); 2518 break; 2519 } 2520 case CTL_GET_PORT_LIST: { 2521 struct ctl_port *port; 2522 struct ctl_port_list *list; 2523 int i; 2524 2525 list = (struct ctl_port_list *)addr; 2526 2527 if (list->alloc_len != (list->alloc_num * 2528 sizeof(struct ctl_port_entry))) { 2529 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2530 "alloc_num %u * sizeof(struct ctl_port_entry) " 2531 "%zu\n", __func__, list->alloc_len, 2532 list->alloc_num, sizeof(struct ctl_port_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 list->fill_len = 0; 2537 list->fill_num = 0; 2538 list->dropped_num = 0; 2539 i = 0; 2540 mtx_lock(&softc->ctl_lock); 2541 STAILQ_FOREACH(port, &softc->port_list, links) { 2542 struct ctl_port_entry entry, *list_entry; 2543 2544 if (list->fill_num >= list->alloc_num) { 2545 list->dropped_num++; 2546 continue; 2547 } 2548 2549 entry.port_type = port->port_type; 2550 strlcpy(entry.port_name, port->port_name, 2551 sizeof(entry.port_name)); 2552 entry.targ_port = port->targ_port; 2553 entry.physical_port = port->physical_port; 2554 entry.virtual_port = port->virtual_port; 2555 entry.wwnn = port->wwnn; 2556 entry.wwpn = port->wwpn; 2557 if (port->status & CTL_PORT_STATUS_ONLINE) 2558 entry.online = 1; 2559 else 2560 entry.online = 0; 2561 2562 list_entry = &list->entries[i]; 2563 2564 retval = copyout(&entry, list_entry, sizeof(entry)); 2565 if (retval != 0) { 2566 printf("%s: CTL_GET_PORT_LIST: copyout " 2567 "returned %d\n", __func__, retval); 2568 break; 2569 } 2570 i++; 2571 list->fill_num++; 2572 list->fill_len += sizeof(entry); 2573 } 2574 mtx_unlock(&softc->ctl_lock); 2575 2576 /* 2577 * If this is non-zero, we had a copyout fault, so there's 2578 * probably no point in attempting to set the status inside 2579 * the structure. 2580 */ 2581 if (retval != 0) 2582 break; 2583 2584 if (list->dropped_num > 0) 2585 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2586 else 2587 list->status = CTL_PORT_LIST_OK; 2588 break; 2589 } 2590 case CTL_DUMP_OOA: { 2591 struct ctl_lun *lun; 2592 union ctl_io *io; 2593 char printbuf[128]; 2594 struct sbuf sb; 2595 2596 mtx_lock(&softc->ctl_lock); 2597 printf("Dumping OOA queues:\n"); 2598 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2599 mtx_lock(&lun->lun_lock); 2600 for (io = (union ctl_io *)TAILQ_FIRST( 2601 &lun->ooa_queue); io != NULL; 2602 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2603 ooa_links)) { 2604 sbuf_new(&sb, printbuf, sizeof(printbuf), 2605 SBUF_FIXEDLEN); 2606 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2607 (intmax_t)lun->lun, 2608 io->scsiio.tag_num, 2609 (io->io_hdr.flags & 2610 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2611 (io->io_hdr.flags & 2612 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2613 (io->io_hdr.flags & 2614 CTL_FLAG_ABORT) ? " ABORT" : "", 2615 (io->io_hdr.flags & 2616 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2617 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2618 sbuf_finish(&sb); 2619 printf("%s\n", sbuf_data(&sb)); 2620 } 2621 mtx_unlock(&lun->lun_lock); 2622 } 2623 printf("OOA queues dump done\n"); 2624 mtx_unlock(&softc->ctl_lock); 2625 break; 2626 } 2627 case CTL_GET_OOA: { 2628 struct ctl_lun *lun; 2629 struct ctl_ooa *ooa_hdr; 2630 struct ctl_ooa_entry *entries; 2631 uint32_t cur_fill_num; 2632 2633 ooa_hdr = (struct ctl_ooa *)addr; 2634 2635 if ((ooa_hdr->alloc_len == 0) 2636 || (ooa_hdr->alloc_num == 0)) { 2637 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2638 "must be non-zero\n", __func__, 2639 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2640 retval = EINVAL; 2641 break; 2642 } 2643 2644 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2645 sizeof(struct ctl_ooa_entry))) { 2646 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2647 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2648 __func__, ooa_hdr->alloc_len, 2649 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2650 retval = EINVAL; 2651 break; 2652 } 2653 2654 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2655 if (entries == NULL) { 2656 printf("%s: could not allocate %d bytes for OOA " 2657 "dump\n", __func__, ooa_hdr->alloc_len); 2658 retval = ENOMEM; 2659 break; 2660 } 2661 2662 mtx_lock(&softc->ctl_lock); 2663 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2664 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2665 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2666 mtx_unlock(&softc->ctl_lock); 2667 free(entries, M_CTL); 2668 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2669 __func__, (uintmax_t)ooa_hdr->lun_num); 2670 retval = EINVAL; 2671 break; 2672 } 2673 2674 cur_fill_num = 0; 2675 2676 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2677 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2678 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2679 ooa_hdr, entries); 2680 if (retval != 0) 2681 break; 2682 } 2683 if (retval != 0) { 2684 mtx_unlock(&softc->ctl_lock); 2685 free(entries, M_CTL); 2686 break; 2687 } 2688 } else { 2689 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2690 2691 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2692 entries); 2693 } 2694 mtx_unlock(&softc->ctl_lock); 2695 2696 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2697 ooa_hdr->fill_len = ooa_hdr->fill_num * 2698 sizeof(struct ctl_ooa_entry); 2699 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2700 if (retval != 0) { 2701 printf("%s: error copying out %d bytes for OOA dump\n", 2702 __func__, ooa_hdr->fill_len); 2703 } 2704 2705 getbintime(&ooa_hdr->cur_bt); 2706 2707 if (cur_fill_num > ooa_hdr->alloc_num) { 2708 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2709 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2710 } else { 2711 ooa_hdr->dropped_num = 0; 2712 ooa_hdr->status = CTL_OOA_OK; 2713 } 2714 2715 free(entries, M_CTL); 2716 break; 2717 } 2718 case CTL_CHECK_OOA: { 2719 union ctl_io *io; 2720 struct ctl_lun *lun; 2721 struct ctl_ooa_info *ooa_info; 2722 2723 2724 ooa_info = (struct ctl_ooa_info *)addr; 2725 2726 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2727 ooa_info->status = CTL_OOA_INVALID_LUN; 2728 break; 2729 } 2730 mtx_lock(&softc->ctl_lock); 2731 lun = softc->ctl_luns[ooa_info->lun_id]; 2732 if (lun == NULL) { 2733 mtx_unlock(&softc->ctl_lock); 2734 ooa_info->status = CTL_OOA_INVALID_LUN; 2735 break; 2736 } 2737 mtx_lock(&lun->lun_lock); 2738 mtx_unlock(&softc->ctl_lock); 2739 ooa_info->num_entries = 0; 2740 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2741 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2742 &io->io_hdr, ooa_links)) { 2743 ooa_info->num_entries++; 2744 } 2745 mtx_unlock(&lun->lun_lock); 2746 2747 ooa_info->status = CTL_OOA_SUCCESS; 2748 2749 break; 2750 } 2751 case CTL_HARD_START: 2752 case CTL_HARD_STOP: { 2753 struct ctl_fe_ioctl_startstop_info ss_info; 2754 struct cfi_metatask *metatask; 2755 struct mtx hs_mtx; 2756 2757 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2758 2759 cv_init(&ss_info.sem, "hard start/stop cv" ); 2760 2761 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2762 if (metatask == NULL) { 2763 retval = ENOMEM; 2764 mtx_destroy(&hs_mtx); 2765 break; 2766 } 2767 2768 if (cmd == CTL_HARD_START) 2769 metatask->tasktype = CFI_TASK_STARTUP; 2770 else 2771 metatask->tasktype = CFI_TASK_SHUTDOWN; 2772 2773 metatask->callback = ctl_ioctl_hard_startstop_callback; 2774 metatask->callback_arg = &ss_info; 2775 2776 cfi_action(metatask); 2777 2778 /* Wait for the callback */ 2779 mtx_lock(&hs_mtx); 2780 cv_wait_sig(&ss_info.sem, &hs_mtx); 2781 mtx_unlock(&hs_mtx); 2782 2783 /* 2784 * All information has been copied from the metatask by the 2785 * time cv_broadcast() is called, so we free the metatask here. 2786 */ 2787 cfi_free_metatask(metatask); 2788 2789 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2790 2791 mtx_destroy(&hs_mtx); 2792 break; 2793 } 2794 case CTL_BBRREAD: { 2795 struct ctl_bbrread_info *bbr_info; 2796 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2797 struct mtx bbr_mtx; 2798 struct cfi_metatask *metatask; 2799 2800 bbr_info = (struct ctl_bbrread_info *)addr; 2801 2802 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2803 2804 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2805 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2806 2807 fe_bbr_info.bbr_info = bbr_info; 2808 fe_bbr_info.lock = &bbr_mtx; 2809 2810 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2811 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2812 2813 if (metatask == NULL) { 2814 mtx_destroy(&bbr_mtx); 2815 cv_destroy(&fe_bbr_info.sem); 2816 retval = ENOMEM; 2817 break; 2818 } 2819 metatask->tasktype = CFI_TASK_BBRREAD; 2820 metatask->callback = ctl_ioctl_bbrread_callback; 2821 metatask->callback_arg = &fe_bbr_info; 2822 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2823 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2824 metatask->taskinfo.bbrread.len = bbr_info->len; 2825 2826 cfi_action(metatask); 2827 2828 mtx_lock(&bbr_mtx); 2829 while (fe_bbr_info.wakeup_done == 0) 2830 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2831 mtx_unlock(&bbr_mtx); 2832 2833 bbr_info->status = metatask->status; 2834 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2835 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2836 memcpy(&bbr_info->sense_data, 2837 &metatask->taskinfo.bbrread.sense_data, 2838 ctl_min(sizeof(bbr_info->sense_data), 2839 sizeof(metatask->taskinfo.bbrread.sense_data))); 2840 2841 cfi_free_metatask(metatask); 2842 2843 mtx_destroy(&bbr_mtx); 2844 cv_destroy(&fe_bbr_info.sem); 2845 2846 break; 2847 } 2848 case CTL_DELAY_IO: { 2849 struct ctl_io_delay_info *delay_info; 2850#ifdef CTL_IO_DELAY 2851 struct ctl_lun *lun; 2852#endif /* CTL_IO_DELAY */ 2853 2854 delay_info = (struct ctl_io_delay_info *)addr; 2855 2856#ifdef CTL_IO_DELAY 2857 mtx_lock(&softc->ctl_lock); 2858 2859 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2860 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2861 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2862 } else { 2863 lun = softc->ctl_luns[delay_info->lun_id]; 2864 mtx_lock(&lun->lun_lock); 2865 2866 delay_info->status = CTL_DELAY_STATUS_OK; 2867 2868 switch (delay_info->delay_type) { 2869 case CTL_DELAY_TYPE_CONT: 2870 break; 2871 case CTL_DELAY_TYPE_ONESHOT: 2872 break; 2873 default: 2874 delay_info->status = 2875 CTL_DELAY_STATUS_INVALID_TYPE; 2876 break; 2877 } 2878 2879 switch (delay_info->delay_loc) { 2880 case CTL_DELAY_LOC_DATAMOVE: 2881 lun->delay_info.datamove_type = 2882 delay_info->delay_type; 2883 lun->delay_info.datamove_delay = 2884 delay_info->delay_secs; 2885 break; 2886 case CTL_DELAY_LOC_DONE: 2887 lun->delay_info.done_type = 2888 delay_info->delay_type; 2889 lun->delay_info.done_delay = 2890 delay_info->delay_secs; 2891 break; 2892 default: 2893 delay_info->status = 2894 CTL_DELAY_STATUS_INVALID_LOC; 2895 break; 2896 } 2897 mtx_unlock(&lun->lun_lock); 2898 } 2899 2900 mtx_unlock(&softc->ctl_lock); 2901#else 2902 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2903#endif /* CTL_IO_DELAY */ 2904 break; 2905 } 2906 case CTL_REALSYNC_SET: { 2907 int *syncstate; 2908 2909 syncstate = (int *)addr; 2910 2911 mtx_lock(&softc->ctl_lock); 2912 switch (*syncstate) { 2913 case 0: 2914 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2915 break; 2916 case 1: 2917 softc->flags |= CTL_FLAG_REAL_SYNC; 2918 break; 2919 default: 2920 retval = EINVAL; 2921 break; 2922 } 2923 mtx_unlock(&softc->ctl_lock); 2924 break; 2925 } 2926 case CTL_REALSYNC_GET: { 2927 int *syncstate; 2928 2929 syncstate = (int*)addr; 2930 2931 mtx_lock(&softc->ctl_lock); 2932 if (softc->flags & CTL_FLAG_REAL_SYNC) 2933 *syncstate = 1; 2934 else 2935 *syncstate = 0; 2936 mtx_unlock(&softc->ctl_lock); 2937 2938 break; 2939 } 2940 case CTL_SETSYNC: 2941 case CTL_GETSYNC: { 2942 struct ctl_sync_info *sync_info; 2943 struct ctl_lun *lun; 2944 2945 sync_info = (struct ctl_sync_info *)addr; 2946 2947 mtx_lock(&softc->ctl_lock); 2948 lun = softc->ctl_luns[sync_info->lun_id]; 2949 if (lun == NULL) { 2950 mtx_unlock(&softc->ctl_lock); 2951 sync_info->status = CTL_GS_SYNC_NO_LUN; 2952 } 2953 /* 2954 * Get or set the sync interval. We're not bounds checking 2955 * in the set case, hopefully the user won't do something 2956 * silly. 2957 */ 2958 mtx_lock(&lun->lun_lock); 2959 mtx_unlock(&softc->ctl_lock); 2960 if (cmd == CTL_GETSYNC) 2961 sync_info->sync_interval = lun->sync_interval; 2962 else 2963 lun->sync_interval = sync_info->sync_interval; 2964 mtx_unlock(&lun->lun_lock); 2965 2966 sync_info->status = CTL_GS_SYNC_OK; 2967 2968 break; 2969 } 2970 case CTL_GETSTATS: { 2971 struct ctl_stats *stats; 2972 struct ctl_lun *lun; 2973 int i; 2974 2975 stats = (struct ctl_stats *)addr; 2976 2977 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2978 stats->alloc_len) { 2979 stats->status = CTL_SS_NEED_MORE_SPACE; 2980 stats->num_luns = softc->num_luns; 2981 break; 2982 } 2983 /* 2984 * XXX KDM no locking here. If the LUN list changes, 2985 * things can blow up. 2986 */ 2987 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2988 i++, lun = STAILQ_NEXT(lun, links)) { 2989 retval = copyout(&lun->stats, &stats->lun_stats[i], 2990 sizeof(lun->stats)); 2991 if (retval != 0) 2992 break; 2993 } 2994 stats->num_luns = softc->num_luns; 2995 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2996 softc->num_luns; 2997 stats->status = CTL_SS_OK; 2998#ifdef CTL_TIME_IO 2999 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3000#else 3001 stats->flags = CTL_STATS_FLAG_NONE; 3002#endif 3003 getnanouptime(&stats->timestamp); 3004 break; 3005 } 3006 case CTL_ERROR_INJECT: { 3007 struct ctl_error_desc *err_desc, *new_err_desc; 3008 struct ctl_lun *lun; 3009 3010 err_desc = (struct ctl_error_desc *)addr; 3011 3012 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3013 M_WAITOK | M_ZERO); 3014 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3015 3016 mtx_lock(&softc->ctl_lock); 3017 lun = softc->ctl_luns[err_desc->lun_id]; 3018 if (lun == NULL) { 3019 mtx_unlock(&softc->ctl_lock); 3020 free(new_err_desc, M_CTL); 3021 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3022 __func__, (uintmax_t)err_desc->lun_id); 3023 retval = EINVAL; 3024 break; 3025 } 3026 mtx_lock(&lun->lun_lock); 3027 mtx_unlock(&softc->ctl_lock); 3028 3029 /* 3030 * We could do some checking here to verify the validity 3031 * of the request, but given the complexity of error 3032 * injection requests, the checking logic would be fairly 3033 * complex. 3034 * 3035 * For now, if the request is invalid, it just won't get 3036 * executed and might get deleted. 3037 */ 3038 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3039 3040 /* 3041 * XXX KDM check to make sure the serial number is unique, 3042 * in case we somehow manage to wrap. That shouldn't 3043 * happen for a very long time, but it's the right thing to 3044 * do. 3045 */ 3046 new_err_desc->serial = lun->error_serial; 3047 err_desc->serial = lun->error_serial; 3048 lun->error_serial++; 3049 3050 mtx_unlock(&lun->lun_lock); 3051 break; 3052 } 3053 case CTL_ERROR_INJECT_DELETE: { 3054 struct ctl_error_desc *delete_desc, *desc, *desc2; 3055 struct ctl_lun *lun; 3056 int delete_done; 3057 3058 delete_desc = (struct ctl_error_desc *)addr; 3059 delete_done = 0; 3060 3061 mtx_lock(&softc->ctl_lock); 3062 lun = softc->ctl_luns[delete_desc->lun_id]; 3063 if (lun == NULL) { 3064 mtx_unlock(&softc->ctl_lock); 3065 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3066 __func__, (uintmax_t)delete_desc->lun_id); 3067 retval = EINVAL; 3068 break; 3069 } 3070 mtx_lock(&lun->lun_lock); 3071 mtx_unlock(&softc->ctl_lock); 3072 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3073 if (desc->serial != delete_desc->serial) 3074 continue; 3075 3076 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3077 links); 3078 free(desc, M_CTL); 3079 delete_done = 1; 3080 } 3081 mtx_unlock(&lun->lun_lock); 3082 if (delete_done == 0) { 3083 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3084 "error serial %ju on LUN %u\n", __func__, 3085 delete_desc->serial, delete_desc->lun_id); 3086 retval = EINVAL; 3087 break; 3088 } 3089 break; 3090 } 3091 case CTL_DUMP_STRUCTS: { 3092 int i, j, k; 3093 struct ctl_port *port; 3094 struct ctl_frontend *fe; 3095 3096 mtx_lock(&softc->ctl_lock); 3097 printf("CTL Persistent Reservation information start:\n"); 3098 for (i = 0; i < CTL_MAX_LUNS; i++) { 3099 struct ctl_lun *lun; 3100 3101 lun = softc->ctl_luns[i]; 3102 3103 if ((lun == NULL) 3104 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3105 continue; 3106 3107 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3108 if (lun->pr_keys[j] == NULL) 3109 continue; 3110 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3111 if (lun->pr_keys[j][k] == 0) 3112 continue; 3113 printf(" LUN %d port %d iid %d key " 3114 "%#jx\n", i, j, k, 3115 (uintmax_t)lun->pr_keys[j][k]); 3116 } 3117 } 3118 } 3119 printf("CTL Persistent Reservation information end\n"); 3120 printf("CTL Ports:\n"); 3121 STAILQ_FOREACH(port, &softc->port_list, links) { 3122 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3123 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3124 port->frontend->name, port->port_type, 3125 port->physical_port, port->virtual_port, 3126 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3127 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3128 if (port->wwpn_iid[j].in_use == 0 && 3129 port->wwpn_iid[j].wwpn == 0 && 3130 port->wwpn_iid[j].name == NULL) 3131 continue; 3132 3133 printf(" iid %u use %d WWPN %#jx '%s'\n", 3134 j, port->wwpn_iid[j].in_use, 3135 (uintmax_t)port->wwpn_iid[j].wwpn, 3136 port->wwpn_iid[j].name); 3137 } 3138 } 3139 printf("CTL Port information end\n"); 3140 mtx_unlock(&softc->ctl_lock); 3141 /* 3142 * XXX KDM calling this without a lock. We'd likely want 3143 * to drop the lock before calling the frontend's dump 3144 * routine anyway. 3145 */ 3146 printf("CTL Frontends:\n"); 3147 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3148 printf(" Frontend '%s'\n", fe->name); 3149 if (fe->fe_dump != NULL) 3150 fe->fe_dump(); 3151 } 3152 printf("CTL Frontend information end\n"); 3153 break; 3154 } 3155 case CTL_LUN_REQ: { 3156 struct ctl_lun_req *lun_req; 3157 struct ctl_backend_driver *backend; 3158 3159 lun_req = (struct ctl_lun_req *)addr; 3160 3161 backend = ctl_backend_find(lun_req->backend); 3162 if (backend == NULL) { 3163 lun_req->status = CTL_LUN_ERROR; 3164 snprintf(lun_req->error_str, 3165 sizeof(lun_req->error_str), 3166 "Backend \"%s\" not found.", 3167 lun_req->backend); 3168 break; 3169 } 3170 if (lun_req->num_be_args > 0) { 3171 lun_req->kern_be_args = ctl_copyin_args( 3172 lun_req->num_be_args, 3173 lun_req->be_args, 3174 lun_req->error_str, 3175 sizeof(lun_req->error_str)); 3176 if (lun_req->kern_be_args == NULL) { 3177 lun_req->status = CTL_LUN_ERROR; 3178 break; 3179 } 3180 } 3181 3182 retval = backend->ioctl(dev, cmd, addr, flag, td); 3183 3184 if (lun_req->num_be_args > 0) { 3185 ctl_copyout_args(lun_req->num_be_args, 3186 lun_req->kern_be_args); 3187 ctl_free_args(lun_req->num_be_args, 3188 lun_req->kern_be_args); 3189 } 3190 break; 3191 } 3192 case CTL_LUN_LIST: { 3193 struct sbuf *sb; 3194 struct ctl_lun *lun; 3195 struct ctl_lun_list *list; 3196 struct ctl_option *opt; 3197 3198 list = (struct ctl_lun_list *)addr; 3199 3200 /* 3201 * Allocate a fixed length sbuf here, based on the length 3202 * of the user's buffer. We could allocate an auto-extending 3203 * buffer, and then tell the user how much larger our 3204 * amount of data is than his buffer, but that presents 3205 * some problems: 3206 * 3207 * 1. The sbuf(9) routines use a blocking malloc, and so 3208 * we can't hold a lock while calling them with an 3209 * auto-extending buffer. 3210 * 3211 * 2. There is not currently a LUN reference counting 3212 * mechanism, outside of outstanding transactions on 3213 * the LUN's OOA queue. So a LUN could go away on us 3214 * while we're getting the LUN number, backend-specific 3215 * information, etc. Thus, given the way things 3216 * currently work, we need to hold the CTL lock while 3217 * grabbing LUN information. 3218 * 3219 * So, from the user's standpoint, the best thing to do is 3220 * allocate what he thinks is a reasonable buffer length, 3221 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3222 * double the buffer length and try again. (And repeat 3223 * that until he succeeds.) 3224 */ 3225 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3226 if (sb == NULL) { 3227 list->status = CTL_LUN_LIST_ERROR; 3228 snprintf(list->error_str, sizeof(list->error_str), 3229 "Unable to allocate %d bytes for LUN list", 3230 list->alloc_len); 3231 break; 3232 } 3233 3234 sbuf_printf(sb, "<ctllunlist>\n"); 3235 3236 mtx_lock(&softc->ctl_lock); 3237 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3238 mtx_lock(&lun->lun_lock); 3239 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3240 (uintmax_t)lun->lun); 3241 3242 /* 3243 * Bail out as soon as we see that we've overfilled 3244 * the buffer. 3245 */ 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<backend_type>%s" 3250 "</backend_type>\n", 3251 (lun->backend == NULL) ? "none" : 3252 lun->backend->name); 3253 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3258 lun->be_lun->lun_type); 3259 3260 if (retval != 0) 3261 break; 3262 3263 if (lun->backend == NULL) { 3264 retval = sbuf_printf(sb, "</lun>\n"); 3265 if (retval != 0) 3266 break; 3267 continue; 3268 } 3269 3270 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3271 (lun->be_lun->maxlba > 0) ? 3272 lun->be_lun->maxlba + 1 : 0); 3273 3274 if (retval != 0) 3275 break; 3276 3277 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3278 lun->be_lun->blocksize); 3279 3280 if (retval != 0) 3281 break; 3282 3283 retval = sbuf_printf(sb, "\t<serial_number>"); 3284 3285 if (retval != 0) 3286 break; 3287 3288 retval = ctl_sbuf_printf_esc(sb, 3289 lun->be_lun->serial_num, 3290 sizeof(lun->be_lun->serial_num)); 3291 3292 if (retval != 0) 3293 break; 3294 3295 retval = sbuf_printf(sb, "</serial_number>\n"); 3296 3297 if (retval != 0) 3298 break; 3299 3300 retval = sbuf_printf(sb, "\t<device_id>"); 3301 3302 if (retval != 0) 3303 break; 3304 3305 retval = ctl_sbuf_printf_esc(sb, 3306 lun->be_lun->device_id, 3307 sizeof(lun->be_lun->device_id)); 3308 3309 if (retval != 0) 3310 break; 3311 3312 retval = sbuf_printf(sb, "</device_id>\n"); 3313 3314 if (retval != 0) 3315 break; 3316 3317 if (lun->backend->lun_info != NULL) { 3318 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3319 if (retval != 0) 3320 break; 3321 } 3322 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3323 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3324 opt->name, opt->value, opt->name); 3325 if (retval != 0) 3326 break; 3327 } 3328 3329 retval = sbuf_printf(sb, "</lun>\n"); 3330 3331 if (retval != 0) 3332 break; 3333 mtx_unlock(&lun->lun_lock); 3334 } 3335 if (lun != NULL) 3336 mtx_unlock(&lun->lun_lock); 3337 mtx_unlock(&softc->ctl_lock); 3338 3339 if ((retval != 0) 3340 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3341 retval = 0; 3342 sbuf_delete(sb); 3343 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3344 snprintf(list->error_str, sizeof(list->error_str), 3345 "Out of space, %d bytes is too small", 3346 list->alloc_len); 3347 break; 3348 } 3349 3350 sbuf_finish(sb); 3351 3352 retval = copyout(sbuf_data(sb), list->lun_xml, 3353 sbuf_len(sb) + 1); 3354 3355 list->fill_len = sbuf_len(sb) + 1; 3356 list->status = CTL_LUN_LIST_OK; 3357 sbuf_delete(sb); 3358 break; 3359 } 3360 case CTL_ISCSI: { 3361 struct ctl_iscsi *ci; 3362 struct ctl_frontend *fe; 3363 3364 ci = (struct ctl_iscsi *)addr; 3365 3366 fe = ctl_frontend_find("iscsi"); 3367 if (fe == NULL) { 3368 ci->status = CTL_ISCSI_ERROR; 3369 snprintf(ci->error_str, sizeof(ci->error_str), 3370 "Frontend \"iscsi\" not found."); 3371 break; 3372 } 3373 3374 retval = fe->ioctl(dev, cmd, addr, flag, td); 3375 break; 3376 } 3377 case CTL_PORT_REQ: { 3378 struct ctl_req *req; 3379 struct ctl_frontend *fe; 3380 3381 req = (struct ctl_req *)addr; 3382 3383 fe = ctl_frontend_find(req->driver); 3384 if (fe == NULL) { 3385 req->status = CTL_LUN_ERROR; 3386 snprintf(req->error_str, sizeof(req->error_str), 3387 "Frontend \"%s\" not found.", req->driver); 3388 break; 3389 } 3390 if (req->num_args > 0) { 3391 req->kern_args = ctl_copyin_args(req->num_args, 3392 req->args, req->error_str, sizeof(req->error_str)); 3393 if (req->kern_args == NULL) { 3394 req->status = CTL_LUN_ERROR; 3395 break; 3396 } 3397 } 3398 3399 retval = fe->ioctl(dev, cmd, addr, flag, td); 3400 3401 if (req->num_args > 0) { 3402 ctl_copyout_args(req->num_args, req->kern_args); 3403 ctl_free_args(req->num_args, req->kern_args); 3404 } 3405 break; 3406 } 3407 case CTL_PORT_LIST: { 3408 struct sbuf *sb; 3409 struct ctl_port *port; 3410 struct ctl_lun_list *list; 3411 struct ctl_option *opt; 3412 int j; 3413 3414 list = (struct ctl_lun_list *)addr; 3415 3416 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3417 if (sb == NULL) { 3418 list->status = CTL_LUN_LIST_ERROR; 3419 snprintf(list->error_str, sizeof(list->error_str), 3420 "Unable to allocate %d bytes for LUN list", 3421 list->alloc_len); 3422 break; 3423 } 3424 3425 sbuf_printf(sb, "<ctlportlist>\n"); 3426 3427 mtx_lock(&softc->ctl_lock); 3428 STAILQ_FOREACH(port, &softc->port_list, links) { 3429 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3430 (uintmax_t)port->targ_port); 3431 3432 /* 3433 * Bail out as soon as we see that we've overfilled 3434 * the buffer. 3435 */ 3436 if (retval != 0) 3437 break; 3438 3439 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3440 "</frontend_type>\n", port->frontend->name); 3441 if (retval != 0) 3442 break; 3443 3444 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3445 port->port_type); 3446 if (retval != 0) 3447 break; 3448 3449 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3450 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3451 if (retval != 0) 3452 break; 3453 3454 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3455 port->port_name); 3456 if (retval != 0) 3457 break; 3458 3459 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3460 port->physical_port); 3461 if (retval != 0) 3462 break; 3463 3464 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3465 port->virtual_port); 3466 if (retval != 0) 3467 break; 3468 3469 if (port->target_devid != NULL) { 3470 sbuf_printf(sb, "\t<target>"); 3471 ctl_id_sbuf(port->target_devid, sb); 3472 sbuf_printf(sb, "</target>\n"); 3473 } 3474 3475 if (port->port_devid != NULL) { 3476 sbuf_printf(sb, "\t<port>"); 3477 ctl_id_sbuf(port->port_devid, sb); 3478 sbuf_printf(sb, "</port>\n"); 3479 } 3480 3481 if (port->port_info != NULL) { 3482 retval = port->port_info(port->onoff_arg, sb); 3483 if (retval != 0) 3484 break; 3485 } 3486 STAILQ_FOREACH(opt, &port->options, links) { 3487 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3488 opt->name, opt->value, opt->name); 3489 if (retval != 0) 3490 break; 3491 } 3492 3493 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3494 if (port->wwpn_iid[j].in_use == 0 || 3495 (port->wwpn_iid[j].wwpn == 0 && 3496 port->wwpn_iid[j].name == NULL)) 3497 continue; 3498 3499 if (port->wwpn_iid[j].name != NULL) 3500 retval = sbuf_printf(sb, 3501 "\t<initiator>%u %s</initiator>\n", 3502 j, port->wwpn_iid[j].name); 3503 else 3504 retval = sbuf_printf(sb, 3505 "\t<initiator>%u naa.%08jx</initiator>\n", 3506 j, port->wwpn_iid[j].wwpn); 3507 if (retval != 0) 3508 break; 3509 } 3510 if (retval != 0) 3511 break; 3512 3513 retval = sbuf_printf(sb, "</targ_port>\n"); 3514 if (retval != 0) 3515 break; 3516 } 3517 mtx_unlock(&softc->ctl_lock); 3518 3519 if ((retval != 0) 3520 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3521 retval = 0; 3522 sbuf_delete(sb); 3523 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3524 snprintf(list->error_str, sizeof(list->error_str), 3525 "Out of space, %d bytes is too small", 3526 list->alloc_len); 3527 break; 3528 } 3529 3530 sbuf_finish(sb); 3531 3532 retval = copyout(sbuf_data(sb), list->lun_xml, 3533 sbuf_len(sb) + 1); 3534 3535 list->fill_len = sbuf_len(sb) + 1; 3536 list->status = CTL_LUN_LIST_OK; 3537 sbuf_delete(sb); 3538 break; 3539 } 3540 default: { 3541 /* XXX KDM should we fix this? */ 3542#if 0 3543 struct ctl_backend_driver *backend; 3544 unsigned int type; 3545 int found; 3546 3547 found = 0; 3548 3549 /* 3550 * We encode the backend type as the ioctl type for backend 3551 * ioctls. So parse it out here, and then search for a 3552 * backend of this type. 3553 */ 3554 type = _IOC_TYPE(cmd); 3555 3556 STAILQ_FOREACH(backend, &softc->be_list, links) { 3557 if (backend->type == type) { 3558 found = 1; 3559 break; 3560 } 3561 } 3562 if (found == 0) { 3563 printf("ctl: unknown ioctl command %#lx or backend " 3564 "%d\n", cmd, type); 3565 retval = EINVAL; 3566 break; 3567 } 3568 retval = backend->ioctl(dev, cmd, addr, flag, td); 3569#endif 3570 retval = ENOTTY; 3571 break; 3572 } 3573 } 3574 return (retval); 3575} 3576 3577uint32_t 3578ctl_get_initindex(struct ctl_nexus *nexus) 3579{ 3580 if (nexus->targ_port < CTL_MAX_PORTS) 3581 return (nexus->initid.id + 3582 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3583 else 3584 return (nexus->initid.id + 3585 ((nexus->targ_port - CTL_MAX_PORTS) * 3586 CTL_MAX_INIT_PER_PORT)); 3587} 3588 3589uint32_t 3590ctl_get_resindex(struct ctl_nexus *nexus) 3591{ 3592 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3593} 3594 3595uint32_t 3596ctl_port_idx(int port_num) 3597{ 3598 if (port_num < CTL_MAX_PORTS) 3599 return(port_num); 3600 else 3601 return(port_num - CTL_MAX_PORTS); 3602} 3603 3604static uint32_t 3605ctl_map_lun(int port_num, uint32_t lun_id) 3606{ 3607 struct ctl_port *port; 3608 3609 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3610 if (port == NULL) 3611 return (UINT32_MAX); 3612 if (port->lun_map == NULL) 3613 return (lun_id); 3614 return (port->lun_map(port->targ_lun_arg, lun_id)); 3615} 3616 3617static uint32_t 3618ctl_map_lun_back(int port_num, uint32_t lun_id) 3619{ 3620 struct ctl_port *port; 3621 uint32_t i; 3622 3623 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3624 if (port->lun_map == NULL) 3625 return (lun_id); 3626 for (i = 0; i < CTL_MAX_LUNS; i++) { 3627 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3628 return (i); 3629 } 3630 return (UINT32_MAX); 3631} 3632 3633/* 3634 * Note: This only works for bitmask sizes that are at least 32 bits, and 3635 * that are a power of 2. 3636 */ 3637int 3638ctl_ffz(uint32_t *mask, uint32_t size) 3639{ 3640 uint32_t num_chunks, num_pieces; 3641 int i, j; 3642 3643 num_chunks = (size >> 5); 3644 if (num_chunks == 0) 3645 num_chunks++; 3646 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3647 3648 for (i = 0; i < num_chunks; i++) { 3649 for (j = 0; j < num_pieces; j++) { 3650 if ((mask[i] & (1 << j)) == 0) 3651 return ((i << 5) + j); 3652 } 3653 } 3654 3655 return (-1); 3656} 3657 3658int 3659ctl_set_mask(uint32_t *mask, uint32_t bit) 3660{ 3661 uint32_t chunk, piece; 3662 3663 chunk = bit >> 5; 3664 piece = bit % (sizeof(uint32_t) * 8); 3665 3666 if ((mask[chunk] & (1 << piece)) != 0) 3667 return (-1); 3668 else 3669 mask[chunk] |= (1 << piece); 3670 3671 return (0); 3672} 3673 3674int 3675ctl_clear_mask(uint32_t *mask, uint32_t bit) 3676{ 3677 uint32_t chunk, piece; 3678 3679 chunk = bit >> 5; 3680 piece = bit % (sizeof(uint32_t) * 8); 3681 3682 if ((mask[chunk] & (1 << piece)) == 0) 3683 return (-1); 3684 else 3685 mask[chunk] &= ~(1 << piece); 3686 3687 return (0); 3688} 3689 3690int 3691ctl_is_set(uint32_t *mask, uint32_t bit) 3692{ 3693 uint32_t chunk, piece; 3694 3695 chunk = bit >> 5; 3696 piece = bit % (sizeof(uint32_t) * 8); 3697 3698 if ((mask[chunk] & (1 << piece)) == 0) 3699 return (0); 3700 else 3701 return (1); 3702} 3703 3704static uint64_t 3705ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3706{ 3707 uint64_t *t; 3708 3709 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3710 if (t == NULL) 3711 return (0); 3712 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3713} 3714 3715static void 3716ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3717{ 3718 uint64_t *t; 3719 3720 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3721 if (t == NULL) 3722 return; 3723 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3724} 3725 3726static void 3727ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3728{ 3729 uint64_t *p; 3730 u_int i; 3731 3732 i = residx/CTL_MAX_INIT_PER_PORT; 3733 if (lun->pr_keys[i] != NULL) 3734 return; 3735 mtx_unlock(&lun->lun_lock); 3736 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3737 M_WAITOK | M_ZERO); 3738 mtx_lock(&lun->lun_lock); 3739 if (lun->pr_keys[i] == NULL) 3740 lun->pr_keys[i] = p; 3741 else 3742 free(p, M_CTL); 3743} 3744 3745static void 3746ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3747{ 3748 uint64_t *t; 3749 3750 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3751 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3752 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3753} 3754 3755/* 3756 * ctl_softc, pool_name, total_ctl_io are passed in. 3757 * npool is passed out. 3758 */ 3759int 3760ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3761 uint32_t total_ctl_io, void **npool) 3762{ 3763#ifdef IO_POOLS 3764 struct ctl_io_pool *pool; 3765 3766 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3767 M_NOWAIT | M_ZERO); 3768 if (pool == NULL) 3769 return (ENOMEM); 3770 3771 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3772 pool->ctl_softc = ctl_softc; 3773 pool->zone = uma_zsecond_create(pool->name, NULL, 3774 NULL, NULL, NULL, ctl_softc->io_zone); 3775 /* uma_prealloc(pool->zone, total_ctl_io); */ 3776 3777 *npool = pool; 3778#else 3779 *npool = ctl_softc->io_zone; 3780#endif 3781 return (0); 3782} 3783 3784void 3785ctl_pool_free(struct ctl_io_pool *pool) 3786{ 3787 3788 if (pool == NULL) 3789 return; 3790 3791#ifdef IO_POOLS 3792 uma_zdestroy(pool->zone); 3793 free(pool, M_CTL); 3794#endif 3795} 3796 3797union ctl_io * 3798ctl_alloc_io(void *pool_ref) 3799{ 3800 union ctl_io *io; 3801#ifdef IO_POOLS 3802 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3803 3804 io = uma_zalloc(pool->zone, M_WAITOK); 3805#else 3806 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3807#endif 3808 if (io != NULL) 3809 io->io_hdr.pool = pool_ref; 3810 return (io); 3811} 3812 3813union ctl_io * 3814ctl_alloc_io_nowait(void *pool_ref) 3815{ 3816 union ctl_io *io; 3817#ifdef IO_POOLS 3818 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3819 3820 io = uma_zalloc(pool->zone, M_NOWAIT); 3821#else 3822 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3823#endif 3824 if (io != NULL) 3825 io->io_hdr.pool = pool_ref; 3826 return (io); 3827} 3828 3829void 3830ctl_free_io(union ctl_io *io) 3831{ 3832#ifdef IO_POOLS 3833 struct ctl_io_pool *pool; 3834#endif 3835 3836 if (io == NULL) 3837 return; 3838 3839#ifdef IO_POOLS 3840 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3841 uma_zfree(pool->zone, io); 3842#else 3843 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3844#endif 3845} 3846 3847void 3848ctl_zero_io(union ctl_io *io) 3849{ 3850 void *pool_ref; 3851 3852 if (io == NULL) 3853 return; 3854 3855 /* 3856 * May need to preserve linked list pointers at some point too. 3857 */ 3858 pool_ref = io->io_hdr.pool; 3859 memset(io, 0, sizeof(*io)); 3860 io->io_hdr.pool = pool_ref; 3861} 3862 3863/* 3864 * This routine is currently used for internal copies of ctl_ios that need 3865 * to persist for some reason after we've already returned status to the 3866 * FETD. (Thus the flag set.) 3867 * 3868 * XXX XXX 3869 * Note that this makes a blind copy of all fields in the ctl_io, except 3870 * for the pool reference. This includes any memory that has been 3871 * allocated! That memory will no longer be valid after done has been 3872 * called, so this would be VERY DANGEROUS for command that actually does 3873 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3874 * start and stop commands, which don't transfer any data, so this is not a 3875 * problem. If it is used for anything else, the caller would also need to 3876 * allocate data buffer space and this routine would need to be modified to 3877 * copy the data buffer(s) as well. 3878 */ 3879void 3880ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3881{ 3882 void *pool_ref; 3883 3884 if ((src == NULL) 3885 || (dest == NULL)) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = dest->io_hdr.pool; 3892 3893 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3894 3895 dest->io_hdr.pool = pool_ref; 3896 /* 3897 * We need to know that this is an internal copy, and doesn't need 3898 * to get passed back to the FETD that allocated it. 3899 */ 3900 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3901} 3902 3903static int 3904ctl_expand_number(const char *buf, uint64_t *num) 3905{ 3906 char *endptr; 3907 uint64_t number; 3908 unsigned shift; 3909 3910 number = strtoq(buf, &endptr, 0); 3911 3912 switch (tolower((unsigned char)*endptr)) { 3913 case 'e': 3914 shift = 60; 3915 break; 3916 case 'p': 3917 shift = 50; 3918 break; 3919 case 't': 3920 shift = 40; 3921 break; 3922 case 'g': 3923 shift = 30; 3924 break; 3925 case 'm': 3926 shift = 20; 3927 break; 3928 case 'k': 3929 shift = 10; 3930 break; 3931 case 'b': 3932 case '\0': /* No unit. */ 3933 *num = number; 3934 return (0); 3935 default: 3936 /* Unrecognized unit. */ 3937 return (-1); 3938 } 3939 3940 if ((number << shift) >> shift != number) { 3941 /* Overflow */ 3942 return (-1); 3943 } 3944 *num = number << shift; 3945 return (0); 3946} 3947 3948 3949/* 3950 * This routine could be used in the future to load default and/or saved 3951 * mode page parameters for a particuar lun. 3952 */ 3953static int 3954ctl_init_page_index(struct ctl_lun *lun) 3955{ 3956 int i; 3957 struct ctl_page_index *page_index; 3958 const char *value; 3959 uint64_t ival; 3960 3961 memcpy(&lun->mode_pages.index, page_index_template, 3962 sizeof(page_index_template)); 3963 3964 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3965 3966 page_index = &lun->mode_pages.index[i]; 3967 /* 3968 * If this is a disk-only mode page, there's no point in 3969 * setting it up. For some pages, we have to have some 3970 * basic information about the disk in order to calculate the 3971 * mode page data. 3972 */ 3973 if ((lun->be_lun->lun_type != T_DIRECT) 3974 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3975 continue; 3976 3977 switch (page_index->page_code & SMPH_PC_MASK) { 3978 case SMS_RW_ERROR_RECOVERY_PAGE: { 3979 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3980 panic("subpage is incorrect!"); 3981 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3982 &rw_er_page_default, 3983 sizeof(rw_er_page_default)); 3984 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3985 &rw_er_page_changeable, 3986 sizeof(rw_er_page_changeable)); 3987 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3988 &rw_er_page_default, 3989 sizeof(rw_er_page_default)); 3990 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3991 &rw_er_page_default, 3992 sizeof(rw_er_page_default)); 3993 page_index->page_data = 3994 (uint8_t *)lun->mode_pages.rw_er_page; 3995 break; 3996 } 3997 case SMS_FORMAT_DEVICE_PAGE: { 3998 struct scsi_format_page *format_page; 3999 4000 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4001 panic("subpage is incorrect!"); 4002 4003 /* 4004 * Sectors per track are set above. Bytes per 4005 * sector need to be set here on a per-LUN basis. 4006 */ 4007 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4008 &format_page_default, 4009 sizeof(format_page_default)); 4010 memcpy(&lun->mode_pages.format_page[ 4011 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4012 sizeof(format_page_changeable)); 4013 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4014 &format_page_default, 4015 sizeof(format_page_default)); 4016 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4017 &format_page_default, 4018 sizeof(format_page_default)); 4019 4020 format_page = &lun->mode_pages.format_page[ 4021 CTL_PAGE_CURRENT]; 4022 scsi_ulto2b(lun->be_lun->blocksize, 4023 format_page->bytes_per_sector); 4024 4025 format_page = &lun->mode_pages.format_page[ 4026 CTL_PAGE_DEFAULT]; 4027 scsi_ulto2b(lun->be_lun->blocksize, 4028 format_page->bytes_per_sector); 4029 4030 format_page = &lun->mode_pages.format_page[ 4031 CTL_PAGE_SAVED]; 4032 scsi_ulto2b(lun->be_lun->blocksize, 4033 format_page->bytes_per_sector); 4034 4035 page_index->page_data = 4036 (uint8_t *)lun->mode_pages.format_page; 4037 break; 4038 } 4039 case SMS_RIGID_DISK_PAGE: { 4040 struct scsi_rigid_disk_page *rigid_disk_page; 4041 uint32_t sectors_per_cylinder; 4042 uint64_t cylinders; 4043#ifndef __XSCALE__ 4044 int shift; 4045#endif /* !__XSCALE__ */ 4046 4047 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4048 panic("invalid subpage value %d", 4049 page_index->subpage); 4050 4051 /* 4052 * Rotation rate and sectors per track are set 4053 * above. We calculate the cylinders here based on 4054 * capacity. Due to the number of heads and 4055 * sectors per track we're using, smaller arrays 4056 * may turn out to have 0 cylinders. Linux and 4057 * FreeBSD don't pay attention to these mode pages 4058 * to figure out capacity, but Solaris does. It 4059 * seems to deal with 0 cylinders just fine, and 4060 * works out a fake geometry based on the capacity. 4061 */ 4062 memcpy(&lun->mode_pages.rigid_disk_page[ 4063 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4064 sizeof(rigid_disk_page_default)); 4065 memcpy(&lun->mode_pages.rigid_disk_page[ 4066 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4067 sizeof(rigid_disk_page_changeable)); 4068 4069 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4070 CTL_DEFAULT_HEADS; 4071 4072 /* 4073 * The divide method here will be more accurate, 4074 * probably, but results in floating point being 4075 * used in the kernel on i386 (__udivdi3()). On the 4076 * XScale, though, __udivdi3() is implemented in 4077 * software. 4078 * 4079 * The shift method for cylinder calculation is 4080 * accurate if sectors_per_cylinder is a power of 4081 * 2. Otherwise it might be slightly off -- you 4082 * might have a bit of a truncation problem. 4083 */ 4084#ifdef __XSCALE__ 4085 cylinders = (lun->be_lun->maxlba + 1) / 4086 sectors_per_cylinder; 4087#else 4088 for (shift = 31; shift > 0; shift--) { 4089 if (sectors_per_cylinder & (1 << shift)) 4090 break; 4091 } 4092 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4093#endif 4094 4095 /* 4096 * We've basically got 3 bytes, or 24 bits for the 4097 * cylinder size in the mode page. If we're over, 4098 * just round down to 2^24. 4099 */ 4100 if (cylinders > 0xffffff) 4101 cylinders = 0xffffff; 4102 4103 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4104 CTL_PAGE_DEFAULT]; 4105 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4106 4107 if ((value = ctl_get_opt(&lun->be_lun->options, 4108 "rpm")) != NULL) { 4109 scsi_ulto2b(strtol(value, NULL, 0), 4110 rigid_disk_page->rotation_rate); 4111 } 4112 4113 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4114 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4115 sizeof(rigid_disk_page_default)); 4116 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4117 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4118 sizeof(rigid_disk_page_default)); 4119 4120 page_index->page_data = 4121 (uint8_t *)lun->mode_pages.rigid_disk_page; 4122 break; 4123 } 4124 case SMS_CACHING_PAGE: { 4125 struct scsi_caching_page *caching_page; 4126 4127 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4128 panic("invalid subpage value %d", 4129 page_index->subpage); 4130 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4131 &caching_page_default, 4132 sizeof(caching_page_default)); 4133 memcpy(&lun->mode_pages.caching_page[ 4134 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4135 sizeof(caching_page_changeable)); 4136 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4137 &caching_page_default, 4138 sizeof(caching_page_default)); 4139 caching_page = &lun->mode_pages.caching_page[ 4140 CTL_PAGE_SAVED]; 4141 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4142 if (value != NULL && strcmp(value, "off") == 0) 4143 caching_page->flags1 &= ~SCP_WCE; 4144 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4145 if (value != NULL && strcmp(value, "off") == 0) 4146 caching_page->flags1 |= SCP_RCD; 4147 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4148 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4149 sizeof(caching_page_default)); 4150 page_index->page_data = 4151 (uint8_t *)lun->mode_pages.caching_page; 4152 break; 4153 } 4154 case SMS_CONTROL_MODE_PAGE: { 4155 struct scsi_control_page *control_page; 4156 4157 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4158 panic("invalid subpage value %d", 4159 page_index->subpage); 4160 4161 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4162 &control_page_default, 4163 sizeof(control_page_default)); 4164 memcpy(&lun->mode_pages.control_page[ 4165 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4166 sizeof(control_page_changeable)); 4167 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4168 &control_page_default, 4169 sizeof(control_page_default)); 4170 control_page = &lun->mode_pages.control_page[ 4171 CTL_PAGE_SAVED]; 4172 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4173 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4174 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4175 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4176 } 4177 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4178 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4179 sizeof(control_page_default)); 4180 page_index->page_data = 4181 (uint8_t *)lun->mode_pages.control_page; 4182 break; 4183 4184 } 4185 case SMS_INFO_EXCEPTIONS_PAGE: { 4186 switch (page_index->subpage) { 4187 case SMS_SUBPAGE_PAGE_0: 4188 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4189 &ie_page_default, 4190 sizeof(ie_page_default)); 4191 memcpy(&lun->mode_pages.ie_page[ 4192 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4193 sizeof(ie_page_changeable)); 4194 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4195 &ie_page_default, 4196 sizeof(ie_page_default)); 4197 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4198 &ie_page_default, 4199 sizeof(ie_page_default)); 4200 page_index->page_data = 4201 (uint8_t *)lun->mode_pages.ie_page; 4202 break; 4203 case 0x02: { 4204 struct ctl_logical_block_provisioning_page *page; 4205 4206 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4207 &lbp_page_default, 4208 sizeof(lbp_page_default)); 4209 memcpy(&lun->mode_pages.lbp_page[ 4210 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4211 sizeof(lbp_page_changeable)); 4212 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4213 &lbp_page_default, 4214 sizeof(lbp_page_default)); 4215 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4216 value = ctl_get_opt(&lun->be_lun->options, 4217 "avail-threshold"); 4218 if (value != NULL && 4219 ctl_expand_number(value, &ival) == 0) { 4220 page->descr[0].flags |= SLBPPD_ENABLED | 4221 SLBPPD_ARMING_DEC; 4222 if (lun->be_lun->blocksize) 4223 ival /= lun->be_lun->blocksize; 4224 else 4225 ival /= 512; 4226 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4227 page->descr[0].count); 4228 } 4229 value = ctl_get_opt(&lun->be_lun->options, 4230 "used-threshold"); 4231 if (value != NULL && 4232 ctl_expand_number(value, &ival) == 0) { 4233 page->descr[1].flags |= SLBPPD_ENABLED | 4234 SLBPPD_ARMING_INC; 4235 if (lun->be_lun->blocksize) 4236 ival /= lun->be_lun->blocksize; 4237 else 4238 ival /= 512; 4239 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4240 page->descr[1].count); 4241 } 4242 value = ctl_get_opt(&lun->be_lun->options, 4243 "pool-avail-threshold"); 4244 if (value != NULL && 4245 ctl_expand_number(value, &ival) == 0) { 4246 page->descr[2].flags |= SLBPPD_ENABLED | 4247 SLBPPD_ARMING_DEC; 4248 if (lun->be_lun->blocksize) 4249 ival /= lun->be_lun->blocksize; 4250 else 4251 ival /= 512; 4252 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4253 page->descr[2].count); 4254 } 4255 value = ctl_get_opt(&lun->be_lun->options, 4256 "pool-used-threshold"); 4257 if (value != NULL && 4258 ctl_expand_number(value, &ival) == 0) { 4259 page->descr[3].flags |= SLBPPD_ENABLED | 4260 SLBPPD_ARMING_INC; 4261 if (lun->be_lun->blocksize) 4262 ival /= lun->be_lun->blocksize; 4263 else 4264 ival /= 512; 4265 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4266 page->descr[3].count); 4267 } 4268 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4269 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4270 sizeof(lbp_page_default)); 4271 page_index->page_data = 4272 (uint8_t *)lun->mode_pages.lbp_page; 4273 }} 4274 break; 4275 } 4276 case SMS_VENDOR_SPECIFIC_PAGE:{ 4277 switch (page_index->subpage) { 4278 case DBGCNF_SUBPAGE_CODE: { 4279 struct copan_debugconf_subpage *current_page, 4280 *saved_page; 4281 4282 memcpy(&lun->mode_pages.debugconf_subpage[ 4283 CTL_PAGE_CURRENT], 4284 &debugconf_page_default, 4285 sizeof(debugconf_page_default)); 4286 memcpy(&lun->mode_pages.debugconf_subpage[ 4287 CTL_PAGE_CHANGEABLE], 4288 &debugconf_page_changeable, 4289 sizeof(debugconf_page_changeable)); 4290 memcpy(&lun->mode_pages.debugconf_subpage[ 4291 CTL_PAGE_DEFAULT], 4292 &debugconf_page_default, 4293 sizeof(debugconf_page_default)); 4294 memcpy(&lun->mode_pages.debugconf_subpage[ 4295 CTL_PAGE_SAVED], 4296 &debugconf_page_default, 4297 sizeof(debugconf_page_default)); 4298 page_index->page_data = 4299 (uint8_t *)lun->mode_pages.debugconf_subpage; 4300 4301 current_page = (struct copan_debugconf_subpage *) 4302 (page_index->page_data + 4303 (page_index->page_len * 4304 CTL_PAGE_CURRENT)); 4305 saved_page = (struct copan_debugconf_subpage *) 4306 (page_index->page_data + 4307 (page_index->page_len * 4308 CTL_PAGE_SAVED)); 4309 break; 4310 } 4311 default: 4312 panic("invalid subpage value %d", 4313 page_index->subpage); 4314 break; 4315 } 4316 break; 4317 } 4318 default: 4319 panic("invalid page value %d", 4320 page_index->page_code & SMPH_PC_MASK); 4321 break; 4322 } 4323 } 4324 4325 return (CTL_RETVAL_COMPLETE); 4326} 4327 4328static int 4329ctl_init_log_page_index(struct ctl_lun *lun) 4330{ 4331 struct ctl_page_index *page_index; 4332 int i, j, k, prev; 4333 4334 memcpy(&lun->log_pages.index, log_page_index_template, 4335 sizeof(log_page_index_template)); 4336 4337 prev = -1; 4338 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4339 4340 page_index = &lun->log_pages.index[i]; 4341 /* 4342 * If this is a disk-only mode page, there's no point in 4343 * setting it up. For some pages, we have to have some 4344 * basic information about the disk in order to calculate the 4345 * mode page data. 4346 */ 4347 if ((lun->be_lun->lun_type != T_DIRECT) 4348 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4349 continue; 4350 4351 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4352 lun->backend->lun_attr == NULL) 4353 continue; 4354 4355 if (page_index->page_code != prev) { 4356 lun->log_pages.pages_page[j] = page_index->page_code; 4357 prev = page_index->page_code; 4358 j++; 4359 } 4360 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4361 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4362 k++; 4363 } 4364 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4365 lun->log_pages.index[0].page_len = j; 4366 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4367 lun->log_pages.index[1].page_len = k * 2; 4368 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4369 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4370 4371 return (CTL_RETVAL_COMPLETE); 4372} 4373 4374static int 4375hex2bin(const char *str, uint8_t *buf, int buf_size) 4376{ 4377 int i; 4378 u_char c; 4379 4380 memset(buf, 0, buf_size); 4381 while (isspace(str[0])) 4382 str++; 4383 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4384 str += 2; 4385 buf_size *= 2; 4386 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4387 c = str[i]; 4388 if (isdigit(c)) 4389 c -= '0'; 4390 else if (isalpha(c)) 4391 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4392 else 4393 break; 4394 if (c >= 16) 4395 break; 4396 if ((i & 1) == 0) 4397 buf[i / 2] |= (c << 4); 4398 else 4399 buf[i / 2] |= c; 4400 } 4401 return ((i + 1) / 2); 4402} 4403 4404/* 4405 * LUN allocation. 4406 * 4407 * Requirements: 4408 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4409 * wants us to allocate the LUN and he can block. 4410 * - ctl_softc is always set 4411 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4412 * 4413 * Returns 0 for success, non-zero (errno) for failure. 4414 */ 4415static int 4416ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4417 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4418{ 4419 struct ctl_lun *nlun, *lun; 4420 struct ctl_port *port; 4421 struct scsi_vpd_id_descriptor *desc; 4422 struct scsi_vpd_id_t10 *t10id; 4423 const char *eui, *naa, *scsiname, *vendor, *value; 4424 int lun_number, i, lun_malloced; 4425 int devidlen, idlen1, idlen2 = 0, len; 4426 4427 if (be_lun == NULL) 4428 return (EINVAL); 4429 4430 /* 4431 * We currently only support Direct Access or Processor LUN types. 4432 */ 4433 switch (be_lun->lun_type) { 4434 case T_DIRECT: 4435 break; 4436 case T_PROCESSOR: 4437 break; 4438 case T_SEQUENTIAL: 4439 case T_CHANGER: 4440 default: 4441 be_lun->lun_config_status(be_lun->be_lun, 4442 CTL_LUN_CONFIG_FAILURE); 4443 break; 4444 } 4445 if (ctl_lun == NULL) { 4446 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4447 lun_malloced = 1; 4448 } else { 4449 lun_malloced = 0; 4450 lun = ctl_lun; 4451 } 4452 4453 memset(lun, 0, sizeof(*lun)); 4454 if (lun_malloced) 4455 lun->flags = CTL_LUN_MALLOCED; 4456 4457 /* Generate LUN ID. */ 4458 devidlen = max(CTL_DEVID_MIN_LEN, 4459 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4460 idlen1 = sizeof(*t10id) + devidlen; 4461 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4462 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4463 if (scsiname != NULL) { 4464 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4465 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4466 } 4467 eui = ctl_get_opt(&be_lun->options, "eui"); 4468 if (eui != NULL) { 4469 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4470 } 4471 naa = ctl_get_opt(&be_lun->options, "naa"); 4472 if (naa != NULL) { 4473 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4474 } 4475 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4476 M_CTL, M_WAITOK | M_ZERO); 4477 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4478 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4479 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4480 desc->length = idlen1; 4481 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4482 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4483 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4484 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4485 } else { 4486 strncpy(t10id->vendor, vendor, 4487 min(sizeof(t10id->vendor), strlen(vendor))); 4488 } 4489 strncpy((char *)t10id->vendor_spec_id, 4490 (char *)be_lun->device_id, devidlen); 4491 if (scsiname != NULL) { 4492 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4493 desc->length); 4494 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4495 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4496 SVPD_ID_TYPE_SCSI_NAME; 4497 desc->length = idlen2; 4498 strlcpy(desc->identifier, scsiname, idlen2); 4499 } 4500 if (eui != NULL) { 4501 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4502 desc->length); 4503 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4504 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4505 SVPD_ID_TYPE_EUI64; 4506 desc->length = hex2bin(eui, desc->identifier, 16); 4507 desc->length = desc->length > 12 ? 16 : 4508 (desc->length > 8 ? 12 : 8); 4509 len -= 16 - desc->length; 4510 } 4511 if (naa != NULL) { 4512 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4513 desc->length); 4514 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4515 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4516 SVPD_ID_TYPE_NAA; 4517 desc->length = hex2bin(naa, desc->identifier, 16); 4518 desc->length = desc->length > 8 ? 16 : 8; 4519 len -= 16 - desc->length; 4520 } 4521 lun->lun_devid->len = len; 4522 4523 mtx_lock(&ctl_softc->ctl_lock); 4524 /* 4525 * See if the caller requested a particular LUN number. If so, see 4526 * if it is available. Otherwise, allocate the first available LUN. 4527 */ 4528 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4529 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4530 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4531 mtx_unlock(&ctl_softc->ctl_lock); 4532 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4533 printf("ctl: requested LUN ID %d is higher " 4534 "than CTL_MAX_LUNS - 1 (%d)\n", 4535 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4536 } else { 4537 /* 4538 * XXX KDM return an error, or just assign 4539 * another LUN ID in this case?? 4540 */ 4541 printf("ctl: requested LUN ID %d is already " 4542 "in use\n", be_lun->req_lun_id); 4543 } 4544 if (lun->flags & CTL_LUN_MALLOCED) 4545 free(lun, M_CTL); 4546 be_lun->lun_config_status(be_lun->be_lun, 4547 CTL_LUN_CONFIG_FAILURE); 4548 return (ENOSPC); 4549 } 4550 lun_number = be_lun->req_lun_id; 4551 } else { 4552 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4553 if (lun_number == -1) { 4554 mtx_unlock(&ctl_softc->ctl_lock); 4555 printf("ctl: can't allocate LUN on target %ju, out of " 4556 "LUNs\n", (uintmax_t)target_id.id); 4557 if (lun->flags & CTL_LUN_MALLOCED) 4558 free(lun, M_CTL); 4559 be_lun->lun_config_status(be_lun->be_lun, 4560 CTL_LUN_CONFIG_FAILURE); 4561 return (ENOSPC); 4562 } 4563 } 4564 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4565 4566 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4567 lun->target = target_id; 4568 lun->lun = lun_number; 4569 lun->be_lun = be_lun; 4570 /* 4571 * The processor LUN is always enabled. Disk LUNs come on line 4572 * disabled, and must be enabled by the backend. 4573 */ 4574 lun->flags |= CTL_LUN_DISABLED; 4575 lun->backend = be_lun->be; 4576 be_lun->ctl_lun = lun; 4577 be_lun->lun_id = lun_number; 4578 atomic_add_int(&be_lun->be->num_luns, 1); 4579 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4580 lun->flags |= CTL_LUN_OFFLINE; 4581 4582 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4583 lun->flags |= CTL_LUN_STOPPED; 4584 4585 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4586 lun->flags |= CTL_LUN_INOPERABLE; 4587 4588 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4589 lun->flags |= CTL_LUN_PRIMARY_SC; 4590 4591 value = ctl_get_opt(&be_lun->options, "readonly"); 4592 if (value != NULL && strcmp(value, "on") == 0) 4593 lun->flags |= CTL_LUN_READONLY; 4594 4595 lun->ctl_softc = ctl_softc; 4596 TAILQ_INIT(&lun->ooa_queue); 4597 TAILQ_INIT(&lun->blocked_queue); 4598 STAILQ_INIT(&lun->error_list); 4599 ctl_tpc_lun_init(lun); 4600 4601 /* 4602 * Initialize the mode and log page index. 4603 */ 4604 ctl_init_page_index(lun); 4605 ctl_init_log_page_index(lun); 4606 4607 /* 4608 * Now, before we insert this lun on the lun list, set the lun 4609 * inventory changed UA for all other luns. 4610 */ 4611 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4612 mtx_lock(&nlun->lun_lock); 4613 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4614 mtx_unlock(&nlun->lun_lock); 4615 } 4616 4617 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4618 4619 ctl_softc->ctl_luns[lun_number] = lun; 4620 4621 ctl_softc->num_luns++; 4622 4623 /* Setup statistics gathering */ 4624 lun->stats.device_type = be_lun->lun_type; 4625 lun->stats.lun_number = lun_number; 4626 if (lun->stats.device_type == T_DIRECT) 4627 lun->stats.blocksize = be_lun->blocksize; 4628 else 4629 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4630 for (i = 0;i < CTL_MAX_PORTS;i++) 4631 lun->stats.ports[i].targ_port = i; 4632 4633 mtx_unlock(&ctl_softc->ctl_lock); 4634 4635 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4636 4637 /* 4638 * Run through each registered FETD and bring it online if it isn't 4639 * already. Enable the target ID if it hasn't been enabled, and 4640 * enable this particular LUN. 4641 */ 4642 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4643 int retval; 4644 4645 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4646 if (retval != 0) { 4647 printf("ctl_alloc_lun: FETD %s port %d returned error " 4648 "%d for lun_enable on target %ju lun %d\n", 4649 port->port_name, port->targ_port, retval, 4650 (uintmax_t)target_id.id, lun_number); 4651 } else 4652 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4653 } 4654 return (0); 4655} 4656 4657/* 4658 * Delete a LUN. 4659 * Assumptions: 4660 * - LUN has already been marked invalid and any pending I/O has been taken 4661 * care of. 4662 */ 4663static int 4664ctl_free_lun(struct ctl_lun *lun) 4665{ 4666 struct ctl_softc *softc; 4667#if 0 4668 struct ctl_port *port; 4669#endif 4670 struct ctl_lun *nlun; 4671 int i; 4672 4673 softc = lun->ctl_softc; 4674 4675 mtx_assert(&softc->ctl_lock, MA_OWNED); 4676 4677 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4678 4679 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4680 4681 softc->ctl_luns[lun->lun] = NULL; 4682 4683 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4684 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4685 4686 softc->num_luns--; 4687 4688 /* 4689 * XXX KDM this scheme only works for a single target/multiple LUN 4690 * setup. It needs to be revamped for a multiple target scheme. 4691 * 4692 * XXX KDM this results in port->lun_disable() getting called twice, 4693 * once when ctl_disable_lun() is called, and a second time here. 4694 * We really need to re-think the LUN disable semantics. There 4695 * should probably be several steps/levels to LUN removal: 4696 * - disable 4697 * - invalidate 4698 * - free 4699 * 4700 * Right now we only have a disable method when communicating to 4701 * the front end ports, at least for individual LUNs. 4702 */ 4703#if 0 4704 STAILQ_FOREACH(port, &softc->port_list, links) { 4705 int retval; 4706 4707 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4708 lun->lun); 4709 if (retval != 0) { 4710 printf("ctl_free_lun: FETD %s port %d returned error " 4711 "%d for lun_disable on target %ju lun %jd\n", 4712 port->port_name, port->targ_port, retval, 4713 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4714 } 4715 4716 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4717 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4718 4719 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4720 if (retval != 0) { 4721 printf("ctl_free_lun: FETD %s port %d " 4722 "returned error %d for targ_disable on " 4723 "target %ju\n", port->port_name, 4724 port->targ_port, retval, 4725 (uintmax_t)lun->target.id); 4726 } else 4727 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4728 4729 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4730 continue; 4731 4732#if 0 4733 port->port_offline(port->onoff_arg); 4734 port->status &= ~CTL_PORT_STATUS_ONLINE; 4735#endif 4736 } 4737 } 4738#endif 4739 4740 /* 4741 * Tell the backend to free resources, if this LUN has a backend. 4742 */ 4743 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4744 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4745 4746 ctl_tpc_lun_shutdown(lun); 4747 mtx_destroy(&lun->lun_lock); 4748 free(lun->lun_devid, M_CTL); 4749 for (i = 0; i < CTL_MAX_PORTS; i++) 4750 free(lun->pending_ua[i], M_CTL); 4751 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4752 free(lun->pr_keys[i], M_CTL); 4753 free(lun->write_buffer, M_CTL); 4754 if (lun->flags & CTL_LUN_MALLOCED) 4755 free(lun, M_CTL); 4756 4757 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4758 mtx_lock(&nlun->lun_lock); 4759 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4760 mtx_unlock(&nlun->lun_lock); 4761 } 4762 4763 return (0); 4764} 4765 4766static void 4767ctl_create_lun(struct ctl_be_lun *be_lun) 4768{ 4769 struct ctl_softc *ctl_softc; 4770 4771 ctl_softc = control_softc; 4772 4773 /* 4774 * ctl_alloc_lun() should handle all potential failure cases. 4775 */ 4776 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4777} 4778 4779int 4780ctl_add_lun(struct ctl_be_lun *be_lun) 4781{ 4782 struct ctl_softc *ctl_softc = control_softc; 4783 4784 mtx_lock(&ctl_softc->ctl_lock); 4785 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4786 mtx_unlock(&ctl_softc->ctl_lock); 4787 wakeup(&ctl_softc->pending_lun_queue); 4788 4789 return (0); 4790} 4791 4792int 4793ctl_enable_lun(struct ctl_be_lun *be_lun) 4794{ 4795 struct ctl_softc *ctl_softc; 4796 struct ctl_port *port, *nport; 4797 struct ctl_lun *lun; 4798 int retval; 4799 4800 ctl_softc = control_softc; 4801 4802 lun = (struct ctl_lun *)be_lun->ctl_lun; 4803 4804 mtx_lock(&ctl_softc->ctl_lock); 4805 mtx_lock(&lun->lun_lock); 4806 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4807 /* 4808 * eh? Why did we get called if the LUN is already 4809 * enabled? 4810 */ 4811 mtx_unlock(&lun->lun_lock); 4812 mtx_unlock(&ctl_softc->ctl_lock); 4813 return (0); 4814 } 4815 lun->flags &= ~CTL_LUN_DISABLED; 4816 mtx_unlock(&lun->lun_lock); 4817 4818 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4819 nport = STAILQ_NEXT(port, links); 4820 4821 /* 4822 * Drop the lock while we call the FETD's enable routine. 4823 * This can lead to a callback into CTL (at least in the 4824 * case of the internal initiator frontend. 4825 */ 4826 mtx_unlock(&ctl_softc->ctl_lock); 4827 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4828 mtx_lock(&ctl_softc->ctl_lock); 4829 if (retval != 0) { 4830 printf("%s: FETD %s port %d returned error " 4831 "%d for lun_enable on target %ju lun %jd\n", 4832 __func__, port->port_name, port->targ_port, retval, 4833 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4834 } 4835#if 0 4836 else { 4837 /* NOTE: TODO: why does lun enable affect port status? */ 4838 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4839 } 4840#endif 4841 } 4842 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 4845 return (0); 4846} 4847 4848int 4849ctl_disable_lun(struct ctl_be_lun *be_lun) 4850{ 4851 struct ctl_softc *ctl_softc; 4852 struct ctl_port *port; 4853 struct ctl_lun *lun; 4854 int retval; 4855 4856 ctl_softc = control_softc; 4857 4858 lun = (struct ctl_lun *)be_lun->ctl_lun; 4859 4860 mtx_lock(&ctl_softc->ctl_lock); 4861 mtx_lock(&lun->lun_lock); 4862 if (lun->flags & CTL_LUN_DISABLED) { 4863 mtx_unlock(&lun->lun_lock); 4864 mtx_unlock(&ctl_softc->ctl_lock); 4865 return (0); 4866 } 4867 lun->flags |= CTL_LUN_DISABLED; 4868 mtx_unlock(&lun->lun_lock); 4869 4870 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4871 mtx_unlock(&ctl_softc->ctl_lock); 4872 /* 4873 * Drop the lock before we call the frontend's disable 4874 * routine, to avoid lock order reversals. 4875 * 4876 * XXX KDM what happens if the frontend list changes while 4877 * we're traversing it? It's unlikely, but should be handled. 4878 */ 4879 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4880 lun->lun); 4881 mtx_lock(&ctl_softc->ctl_lock); 4882 if (retval != 0) { 4883 printf("ctl_alloc_lun: FETD %s port %d returned error " 4884 "%d for lun_disable on target %ju lun %jd\n", 4885 port->port_name, port->targ_port, retval, 4886 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4887 } 4888 } 4889 4890 mtx_unlock(&ctl_softc->ctl_lock); 4891 4892 return (0); 4893} 4894 4895int 4896ctl_start_lun(struct ctl_be_lun *be_lun) 4897{ 4898 struct ctl_softc *ctl_softc; 4899 struct ctl_lun *lun; 4900 4901 ctl_softc = control_softc; 4902 4903 lun = (struct ctl_lun *)be_lun->ctl_lun; 4904 4905 mtx_lock(&lun->lun_lock); 4906 lun->flags &= ~CTL_LUN_STOPPED; 4907 mtx_unlock(&lun->lun_lock); 4908 4909 return (0); 4910} 4911 4912int 4913ctl_stop_lun(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_softc *ctl_softc; 4916 struct ctl_lun *lun; 4917 4918 ctl_softc = control_softc; 4919 4920 lun = (struct ctl_lun *)be_lun->ctl_lun; 4921 4922 mtx_lock(&lun->lun_lock); 4923 lun->flags |= CTL_LUN_STOPPED; 4924 mtx_unlock(&lun->lun_lock); 4925 4926 return (0); 4927} 4928 4929int 4930ctl_lun_offline(struct ctl_be_lun *be_lun) 4931{ 4932 struct ctl_softc *ctl_softc; 4933 struct ctl_lun *lun; 4934 4935 ctl_softc = control_softc; 4936 4937 lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 4939 mtx_lock(&lun->lun_lock); 4940 lun->flags |= CTL_LUN_OFFLINE; 4941 mtx_unlock(&lun->lun_lock); 4942 4943 return (0); 4944} 4945 4946int 4947ctl_lun_online(struct ctl_be_lun *be_lun) 4948{ 4949 struct ctl_softc *ctl_softc; 4950 struct ctl_lun *lun; 4951 4952 ctl_softc = control_softc; 4953 4954 lun = (struct ctl_lun *)be_lun->ctl_lun; 4955 4956 mtx_lock(&lun->lun_lock); 4957 lun->flags &= ~CTL_LUN_OFFLINE; 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961} 4962 4963int 4964ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_lun *lun; 4968 4969 ctl_softc = control_softc; 4970 4971 lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 4975 /* 4976 * The LUN needs to be disabled before it can be marked invalid. 4977 */ 4978 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4979 mtx_unlock(&lun->lun_lock); 4980 return (-1); 4981 } 4982 /* 4983 * Mark the LUN invalid. 4984 */ 4985 lun->flags |= CTL_LUN_INVALID; 4986 4987 /* 4988 * If there is nothing in the OOA queue, go ahead and free the LUN. 4989 * If we have something in the OOA queue, we'll free it when the 4990 * last I/O completes. 4991 */ 4992 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4993 mtx_unlock(&lun->lun_lock); 4994 mtx_lock(&ctl_softc->ctl_lock); 4995 ctl_free_lun(lun); 4996 mtx_unlock(&ctl_softc->ctl_lock); 4997 } else 4998 mtx_unlock(&lun->lun_lock); 4999 5000 return (0); 5001} 5002 5003int 5004ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5005{ 5006 struct ctl_softc *ctl_softc; 5007 struct ctl_lun *lun; 5008 5009 ctl_softc = control_softc; 5010 lun = (struct ctl_lun *)be_lun->ctl_lun; 5011 5012 mtx_lock(&lun->lun_lock); 5013 lun->flags |= CTL_LUN_INOPERABLE; 5014 mtx_unlock(&lun->lun_lock); 5015 5016 return (0); 5017} 5018 5019int 5020ctl_lun_operable(struct ctl_be_lun *be_lun) 5021{ 5022 struct ctl_softc *ctl_softc; 5023 struct ctl_lun *lun; 5024 5025 ctl_softc = control_softc; 5026 lun = (struct ctl_lun *)be_lun->ctl_lun; 5027 5028 mtx_lock(&lun->lun_lock); 5029 lun->flags &= ~CTL_LUN_INOPERABLE; 5030 mtx_unlock(&lun->lun_lock); 5031 5032 return (0); 5033} 5034 5035void 5036ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5037{ 5038 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5039 5040 mtx_lock(&lun->lun_lock); 5041 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5042 mtx_unlock(&lun->lun_lock); 5043} 5044 5045/* 5046 * Backend "memory move is complete" callback for requests that never 5047 * make it down to say RAIDCore's configuration code. 5048 */ 5049int 5050ctl_config_move_done(union ctl_io *io) 5051{ 5052 int retval; 5053 5054 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5055 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5056 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5057 5058 if ((io->io_hdr.port_status != 0) && 5059 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5060 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5061 /* 5062 * For hardware error sense keys, the sense key 5063 * specific value is defined to be a retry count, 5064 * but we use it to pass back an internal FETD 5065 * error code. XXX KDM Hopefully the FETD is only 5066 * using 16 bits for an error code, since that's 5067 * all the space we have in the sks field. 5068 */ 5069 ctl_set_internal_failure(&io->scsiio, 5070 /*sks_valid*/ 1, 5071 /*retry_count*/ 5072 io->io_hdr.port_status); 5073 } 5074 5075 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5076 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5077 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5078 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5079 /* 5080 * XXX KDM just assuming a single pointer here, and not a 5081 * S/G list. If we start using S/G lists for config data, 5082 * we'll need to know how to clean them up here as well. 5083 */ 5084 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5085 free(io->scsiio.kern_data_ptr, M_CTL); 5086 ctl_done(io); 5087 retval = CTL_RETVAL_COMPLETE; 5088 } else { 5089 /* 5090 * XXX KDM now we need to continue data movement. Some 5091 * options: 5092 * - call ctl_scsiio() again? We don't do this for data 5093 * writes, because for those at least we know ahead of 5094 * time where the write will go and how long it is. For 5095 * config writes, though, that information is largely 5096 * contained within the write itself, thus we need to 5097 * parse out the data again. 5098 * 5099 * - Call some other function once the data is in? 5100 */ 5101 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5102 ctl_data_print(io); 5103 5104 /* 5105 * XXX KDM call ctl_scsiio() again for now, and check flag 5106 * bits to see whether we're allocated or not. 5107 */ 5108 retval = ctl_scsiio(&io->scsiio); 5109 } 5110 return (retval); 5111} 5112 5113/* 5114 * This gets called by a backend driver when it is done with a 5115 * data_submit method. 5116 */ 5117void 5118ctl_data_submit_done(union ctl_io *io) 5119{ 5120 /* 5121 * If the IO_CONT flag is set, we need to call the supplied 5122 * function to continue processing the I/O, instead of completing 5123 * the I/O just yet. 5124 * 5125 * If there is an error, though, we don't want to keep processing. 5126 * Instead, just send status back to the initiator. 5127 */ 5128 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5129 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5130 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5131 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5132 io->scsiio.io_cont(io); 5133 return; 5134 } 5135 ctl_done(io); 5136} 5137 5138/* 5139 * This gets called by a backend driver when it is done with a 5140 * configuration write. 5141 */ 5142void 5143ctl_config_write_done(union ctl_io *io) 5144{ 5145 uint8_t *buf; 5146 5147 /* 5148 * If the IO_CONT flag is set, we need to call the supplied 5149 * function to continue processing the I/O, instead of completing 5150 * the I/O just yet. 5151 * 5152 * If there is an error, though, we don't want to keep processing. 5153 * Instead, just send status back to the initiator. 5154 */ 5155 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5156 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5157 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5158 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5159 io->scsiio.io_cont(io); 5160 return; 5161 } 5162 /* 5163 * Since a configuration write can be done for commands that actually 5164 * have data allocated, like write buffer, and commands that have 5165 * no data, like start/stop unit, we need to check here. 5166 */ 5167 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5168 buf = io->scsiio.kern_data_ptr; 5169 else 5170 buf = NULL; 5171 ctl_done(io); 5172 if (buf) 5173 free(buf, M_CTL); 5174} 5175 5176void 5177ctl_config_read_done(union ctl_io *io) 5178{ 5179 uint8_t *buf; 5180 5181 /* 5182 * If there is some error -- we are done, skip data transfer. 5183 */ 5184 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5185 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5186 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5187 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5188 buf = io->scsiio.kern_data_ptr; 5189 else 5190 buf = NULL; 5191 ctl_done(io); 5192 if (buf) 5193 free(buf, M_CTL); 5194 return; 5195 } 5196 5197 /* 5198 * If the IO_CONT flag is set, we need to call the supplied 5199 * function to continue processing the I/O, instead of completing 5200 * the I/O just yet. 5201 */ 5202 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5203 io->scsiio.io_cont(io); 5204 return; 5205 } 5206 5207 ctl_datamove(io); 5208} 5209 5210/* 5211 * SCSI release command. 5212 */ 5213int 5214ctl_scsi_release(struct ctl_scsiio *ctsio) 5215{ 5216 int length, longid, thirdparty_id, resv_id; 5217 struct ctl_softc *ctl_softc; 5218 struct ctl_lun *lun; 5219 uint32_t residx; 5220 5221 length = 0; 5222 resv_id = 0; 5223 5224 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5225 5226 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5227 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5228 ctl_softc = control_softc; 5229 5230 switch (ctsio->cdb[0]) { 5231 case RELEASE_10: { 5232 struct scsi_release_10 *cdb; 5233 5234 cdb = (struct scsi_release_10 *)ctsio->cdb; 5235 5236 if (cdb->byte2 & SR10_LONGID) 5237 longid = 1; 5238 else 5239 thirdparty_id = cdb->thirdparty_id; 5240 5241 resv_id = cdb->resv_id; 5242 length = scsi_2btoul(cdb->length); 5243 break; 5244 } 5245 } 5246 5247 5248 /* 5249 * XXX KDM right now, we only support LUN reservation. We don't 5250 * support 3rd party reservations, or extent reservations, which 5251 * might actually need the parameter list. If we've gotten this 5252 * far, we've got a LUN reservation. Anything else got kicked out 5253 * above. So, according to SPC, ignore the length. 5254 */ 5255 length = 0; 5256 5257 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5258 && (length > 0)) { 5259 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5260 ctsio->kern_data_len = length; 5261 ctsio->kern_total_len = length; 5262 ctsio->kern_data_resid = 0; 5263 ctsio->kern_rel_offset = 0; 5264 ctsio->kern_sg_entries = 0; 5265 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5266 ctsio->be_move_done = ctl_config_move_done; 5267 ctl_datamove((union ctl_io *)ctsio); 5268 5269 return (CTL_RETVAL_COMPLETE); 5270 } 5271 5272 if (length > 0) 5273 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5274 5275 mtx_lock(&lun->lun_lock); 5276 5277 /* 5278 * According to SPC, it is not an error for an intiator to attempt 5279 * to release a reservation on a LUN that isn't reserved, or that 5280 * is reserved by another initiator. The reservation can only be 5281 * released, though, by the initiator who made it or by one of 5282 * several reset type events. 5283 */ 5284 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5285 lun->flags &= ~CTL_LUN_RESERVED; 5286 5287 mtx_unlock(&lun->lun_lock); 5288 5289 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5290 free(ctsio->kern_data_ptr, M_CTL); 5291 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5292 } 5293 5294 ctl_set_success(ctsio); 5295 ctl_done((union ctl_io *)ctsio); 5296 return (CTL_RETVAL_COMPLETE); 5297} 5298 5299int 5300ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5301{ 5302 int extent, thirdparty, longid; 5303 int resv_id, length; 5304 uint64_t thirdparty_id; 5305 struct ctl_softc *ctl_softc; 5306 struct ctl_lun *lun; 5307 uint32_t residx; 5308 5309 extent = 0; 5310 thirdparty = 0; 5311 longid = 0; 5312 resv_id = 0; 5313 length = 0; 5314 thirdparty_id = 0; 5315 5316 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5317 5318 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5320 ctl_softc = control_softc; 5321 5322 switch (ctsio->cdb[0]) { 5323 case RESERVE_10: { 5324 struct scsi_reserve_10 *cdb; 5325 5326 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5327 5328 if (cdb->byte2 & SR10_LONGID) 5329 longid = 1; 5330 else 5331 thirdparty_id = cdb->thirdparty_id; 5332 5333 resv_id = cdb->resv_id; 5334 length = scsi_2btoul(cdb->length); 5335 break; 5336 } 5337 } 5338 5339 /* 5340 * XXX KDM right now, we only support LUN reservation. We don't 5341 * support 3rd party reservations, or extent reservations, which 5342 * might actually need the parameter list. If we've gotten this 5343 * far, we've got a LUN reservation. Anything else got kicked out 5344 * above. So, according to SPC, ignore the length. 5345 */ 5346 length = 0; 5347 5348 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5349 && (length > 0)) { 5350 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5351 ctsio->kern_data_len = length; 5352 ctsio->kern_total_len = length; 5353 ctsio->kern_data_resid = 0; 5354 ctsio->kern_rel_offset = 0; 5355 ctsio->kern_sg_entries = 0; 5356 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5357 ctsio->be_move_done = ctl_config_move_done; 5358 ctl_datamove((union ctl_io *)ctsio); 5359 5360 return (CTL_RETVAL_COMPLETE); 5361 } 5362 5363 if (length > 0) 5364 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5365 5366 mtx_lock(&lun->lun_lock); 5367 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5368 ctl_set_reservation_conflict(ctsio); 5369 goto bailout; 5370 } 5371 5372 lun->flags |= CTL_LUN_RESERVED; 5373 lun->res_idx = residx; 5374 5375 ctl_set_success(ctsio); 5376 5377bailout: 5378 mtx_unlock(&lun->lun_lock); 5379 5380 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5381 free(ctsio->kern_data_ptr, M_CTL); 5382 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5383 } 5384 5385 ctl_done((union ctl_io *)ctsio); 5386 return (CTL_RETVAL_COMPLETE); 5387} 5388 5389int 5390ctl_start_stop(struct ctl_scsiio *ctsio) 5391{ 5392 struct scsi_start_stop_unit *cdb; 5393 struct ctl_lun *lun; 5394 struct ctl_softc *ctl_softc; 5395 int retval; 5396 5397 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5398 5399 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5400 ctl_softc = control_softc; 5401 retval = 0; 5402 5403 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5404 5405 /* 5406 * XXX KDM 5407 * We don't support the immediate bit on a stop unit. In order to 5408 * do that, we would need to code up a way to know that a stop is 5409 * pending, and hold off any new commands until it completes, one 5410 * way or another. Then we could accept or reject those commands 5411 * depending on its status. We would almost need to do the reverse 5412 * of what we do below for an immediate start -- return the copy of 5413 * the ctl_io to the FETD with status to send to the host (and to 5414 * free the copy!) and then free the original I/O once the stop 5415 * actually completes. That way, the OOA queue mechanism can work 5416 * to block commands that shouldn't proceed. Another alternative 5417 * would be to put the copy in the queue in place of the original, 5418 * and return the original back to the caller. That could be 5419 * slightly safer.. 5420 */ 5421 if ((cdb->byte2 & SSS_IMMED) 5422 && ((cdb->how & SSS_START) == 0)) { 5423 ctl_set_invalid_field(ctsio, 5424 /*sks_valid*/ 1, 5425 /*command*/ 1, 5426 /*field*/ 1, 5427 /*bit_valid*/ 1, 5428 /*bit*/ 0); 5429 ctl_done((union ctl_io *)ctsio); 5430 return (CTL_RETVAL_COMPLETE); 5431 } 5432 5433 if ((lun->flags & CTL_LUN_PR_RESERVED) 5434 && ((cdb->how & SSS_START)==0)) { 5435 uint32_t residx; 5436 5437 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5438 if (ctl_get_prkey(lun, residx) == 0 5439 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5440 5441 ctl_set_reservation_conflict(ctsio); 5442 ctl_done((union ctl_io *)ctsio); 5443 return (CTL_RETVAL_COMPLETE); 5444 } 5445 } 5446 5447 /* 5448 * If there is no backend on this device, we can't start or stop 5449 * it. In theory we shouldn't get any start/stop commands in the 5450 * first place at this level if the LUN doesn't have a backend. 5451 * That should get stopped by the command decode code. 5452 */ 5453 if (lun->backend == NULL) { 5454 ctl_set_invalid_opcode(ctsio); 5455 ctl_done((union ctl_io *)ctsio); 5456 return (CTL_RETVAL_COMPLETE); 5457 } 5458 5459 /* 5460 * XXX KDM Copan-specific offline behavior. 5461 * Figure out a reasonable way to port this? 5462 */ 5463#ifdef NEEDTOPORT 5464 mtx_lock(&lun->lun_lock); 5465 5466 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5467 && (lun->flags & CTL_LUN_OFFLINE)) { 5468 /* 5469 * If the LUN is offline, and the on/offline bit isn't set, 5470 * reject the start or stop. Otherwise, let it through. 5471 */ 5472 mtx_unlock(&lun->lun_lock); 5473 ctl_set_lun_not_ready(ctsio); 5474 ctl_done((union ctl_io *)ctsio); 5475 } else { 5476 mtx_unlock(&lun->lun_lock); 5477#endif /* NEEDTOPORT */ 5478 /* 5479 * This could be a start or a stop when we're online, 5480 * or a stop/offline or start/online. A start or stop when 5481 * we're offline is covered in the case above. 5482 */ 5483 /* 5484 * In the non-immediate case, we send the request to 5485 * the backend and return status to the user when 5486 * it is done. 5487 * 5488 * In the immediate case, we allocate a new ctl_io 5489 * to hold a copy of the request, and send that to 5490 * the backend. We then set good status on the 5491 * user's request and return it immediately. 5492 */ 5493 if (cdb->byte2 & SSS_IMMED) { 5494 union ctl_io *new_io; 5495 5496 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5497 ctl_copy_io((union ctl_io *)ctsio, new_io); 5498 retval = lun->backend->config_write(new_io); 5499 ctl_set_success(ctsio); 5500 ctl_done((union ctl_io *)ctsio); 5501 } else { 5502 retval = lun->backend->config_write( 5503 (union ctl_io *)ctsio); 5504 } 5505#ifdef NEEDTOPORT 5506 } 5507#endif 5508 return (retval); 5509} 5510 5511/* 5512 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5513 * we don't really do anything with the LBA and length fields if the user 5514 * passes them in. Instead we'll just flush out the cache for the entire 5515 * LUN. 5516 */ 5517int 5518ctl_sync_cache(struct ctl_scsiio *ctsio) 5519{ 5520 struct ctl_lun *lun; 5521 struct ctl_softc *ctl_softc; 5522 uint64_t starting_lba; 5523 uint32_t block_count; 5524 int retval; 5525 5526 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5527 5528 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5529 ctl_softc = control_softc; 5530 retval = 0; 5531 5532 switch (ctsio->cdb[0]) { 5533 case SYNCHRONIZE_CACHE: { 5534 struct scsi_sync_cache *cdb; 5535 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5536 5537 starting_lba = scsi_4btoul(cdb->begin_lba); 5538 block_count = scsi_2btoul(cdb->lb_count); 5539 break; 5540 } 5541 case SYNCHRONIZE_CACHE_16: { 5542 struct scsi_sync_cache_16 *cdb; 5543 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5544 5545 starting_lba = scsi_8btou64(cdb->begin_lba); 5546 block_count = scsi_4btoul(cdb->lb_count); 5547 break; 5548 } 5549 default: 5550 ctl_set_invalid_opcode(ctsio); 5551 ctl_done((union ctl_io *)ctsio); 5552 goto bailout; 5553 break; /* NOTREACHED */ 5554 } 5555 5556 /* 5557 * We check the LBA and length, but don't do anything with them. 5558 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5559 * get flushed. This check will just help satisfy anyone who wants 5560 * to see an error for an out of range LBA. 5561 */ 5562 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5563 ctl_set_lba_out_of_range(ctsio); 5564 ctl_done((union ctl_io *)ctsio); 5565 goto bailout; 5566 } 5567 5568 /* 5569 * If this LUN has no backend, we can't flush the cache anyway. 5570 */ 5571 if (lun->backend == NULL) { 5572 ctl_set_invalid_opcode(ctsio); 5573 ctl_done((union ctl_io *)ctsio); 5574 goto bailout; 5575 } 5576 5577 /* 5578 * Check to see whether we're configured to send the SYNCHRONIZE 5579 * CACHE command directly to the back end. 5580 */ 5581 mtx_lock(&lun->lun_lock); 5582 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5583 && (++(lun->sync_count) >= lun->sync_interval)) { 5584 lun->sync_count = 0; 5585 mtx_unlock(&lun->lun_lock); 5586 retval = lun->backend->config_write((union ctl_io *)ctsio); 5587 } else { 5588 mtx_unlock(&lun->lun_lock); 5589 ctl_set_success(ctsio); 5590 ctl_done((union ctl_io *)ctsio); 5591 } 5592 5593bailout: 5594 5595 return (retval); 5596} 5597 5598int 5599ctl_format(struct ctl_scsiio *ctsio) 5600{ 5601 struct scsi_format *cdb; 5602 struct ctl_lun *lun; 5603 struct ctl_softc *ctl_softc; 5604 int length, defect_list_len; 5605 5606 CTL_DEBUG_PRINT(("ctl_format\n")); 5607 5608 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5609 ctl_softc = control_softc; 5610 5611 cdb = (struct scsi_format *)ctsio->cdb; 5612 5613 length = 0; 5614 if (cdb->byte2 & SF_FMTDATA) { 5615 if (cdb->byte2 & SF_LONGLIST) 5616 length = sizeof(struct scsi_format_header_long); 5617 else 5618 length = sizeof(struct scsi_format_header_short); 5619 } 5620 5621 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5622 && (length > 0)) { 5623 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5624 ctsio->kern_data_len = length; 5625 ctsio->kern_total_len = length; 5626 ctsio->kern_data_resid = 0; 5627 ctsio->kern_rel_offset = 0; 5628 ctsio->kern_sg_entries = 0; 5629 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5630 ctsio->be_move_done = ctl_config_move_done; 5631 ctl_datamove((union ctl_io *)ctsio); 5632 5633 return (CTL_RETVAL_COMPLETE); 5634 } 5635 5636 defect_list_len = 0; 5637 5638 if (cdb->byte2 & SF_FMTDATA) { 5639 if (cdb->byte2 & SF_LONGLIST) { 5640 struct scsi_format_header_long *header; 5641 5642 header = (struct scsi_format_header_long *) 5643 ctsio->kern_data_ptr; 5644 5645 defect_list_len = scsi_4btoul(header->defect_list_len); 5646 if (defect_list_len != 0) { 5647 ctl_set_invalid_field(ctsio, 5648 /*sks_valid*/ 1, 5649 /*command*/ 0, 5650 /*field*/ 2, 5651 /*bit_valid*/ 0, 5652 /*bit*/ 0); 5653 goto bailout; 5654 } 5655 } else { 5656 struct scsi_format_header_short *header; 5657 5658 header = (struct scsi_format_header_short *) 5659 ctsio->kern_data_ptr; 5660 5661 defect_list_len = scsi_2btoul(header->defect_list_len); 5662 if (defect_list_len != 0) { 5663 ctl_set_invalid_field(ctsio, 5664 /*sks_valid*/ 1, 5665 /*command*/ 0, 5666 /*field*/ 2, 5667 /*bit_valid*/ 0, 5668 /*bit*/ 0); 5669 goto bailout; 5670 } 5671 } 5672 } 5673 5674 /* 5675 * The format command will clear out the "Medium format corrupted" 5676 * status if set by the configuration code. That status is really 5677 * just a way to notify the host that we have lost the media, and 5678 * get them to issue a command that will basically make them think 5679 * they're blowing away the media. 5680 */ 5681 mtx_lock(&lun->lun_lock); 5682 lun->flags &= ~CTL_LUN_INOPERABLE; 5683 mtx_unlock(&lun->lun_lock); 5684 5685 ctl_set_success(ctsio); 5686bailout: 5687 5688 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5689 free(ctsio->kern_data_ptr, M_CTL); 5690 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5691 } 5692 5693 ctl_done((union ctl_io *)ctsio); 5694 return (CTL_RETVAL_COMPLETE); 5695} 5696 5697int 5698ctl_read_buffer(struct ctl_scsiio *ctsio) 5699{ 5700 struct scsi_read_buffer *cdb; 5701 struct ctl_lun *lun; 5702 int buffer_offset, len; 5703 static uint8_t descr[4]; 5704 static uint8_t echo_descr[4] = { 0 }; 5705 5706 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5707 5708 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5709 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5710 5711 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5712 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5713 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5714 ctl_set_invalid_field(ctsio, 5715 /*sks_valid*/ 1, 5716 /*command*/ 1, 5717 /*field*/ 1, 5718 /*bit_valid*/ 1, 5719 /*bit*/ 4); 5720 ctl_done((union ctl_io *)ctsio); 5721 return (CTL_RETVAL_COMPLETE); 5722 } 5723 5724 len = scsi_3btoul(cdb->length); 5725 buffer_offset = scsi_3btoul(cdb->offset); 5726 5727 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5728 ctl_set_invalid_field(ctsio, 5729 /*sks_valid*/ 1, 5730 /*command*/ 1, 5731 /*field*/ 6, 5732 /*bit_valid*/ 0, 5733 /*bit*/ 0); 5734 ctl_done((union ctl_io *)ctsio); 5735 return (CTL_RETVAL_COMPLETE); 5736 } 5737 5738 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5739 descr[0] = 0; 5740 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5741 ctsio->kern_data_ptr = descr; 5742 len = min(len, sizeof(descr)); 5743 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5744 ctsio->kern_data_ptr = echo_descr; 5745 len = min(len, sizeof(echo_descr)); 5746 } else { 5747 if (lun->write_buffer == NULL) { 5748 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5749 M_CTL, M_WAITOK); 5750 } 5751 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5752 } 5753 ctsio->kern_data_len = len; 5754 ctsio->kern_total_len = len; 5755 ctsio->kern_data_resid = 0; 5756 ctsio->kern_rel_offset = 0; 5757 ctsio->kern_sg_entries = 0; 5758 ctl_set_success(ctsio); 5759 ctsio->be_move_done = ctl_config_move_done; 5760 ctl_datamove((union ctl_io *)ctsio); 5761 return (CTL_RETVAL_COMPLETE); 5762} 5763 5764int 5765ctl_write_buffer(struct ctl_scsiio *ctsio) 5766{ 5767 struct scsi_write_buffer *cdb; 5768 struct ctl_lun *lun; 5769 int buffer_offset, len; 5770 5771 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5772 5773 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5774 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5775 5776 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5777 ctl_set_invalid_field(ctsio, 5778 /*sks_valid*/ 1, 5779 /*command*/ 1, 5780 /*field*/ 1, 5781 /*bit_valid*/ 1, 5782 /*bit*/ 4); 5783 ctl_done((union ctl_io *)ctsio); 5784 return (CTL_RETVAL_COMPLETE); 5785 } 5786 5787 len = scsi_3btoul(cdb->length); 5788 buffer_offset = scsi_3btoul(cdb->offset); 5789 5790 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5791 ctl_set_invalid_field(ctsio, 5792 /*sks_valid*/ 1, 5793 /*command*/ 1, 5794 /*field*/ 6, 5795 /*bit_valid*/ 0, 5796 /*bit*/ 0); 5797 ctl_done((union ctl_io *)ctsio); 5798 return (CTL_RETVAL_COMPLETE); 5799 } 5800 5801 /* 5802 * If we've got a kernel request that hasn't been malloced yet, 5803 * malloc it and tell the caller the data buffer is here. 5804 */ 5805 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5806 if (lun->write_buffer == NULL) { 5807 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5808 M_CTL, M_WAITOK); 5809 } 5810 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5811 ctsio->kern_data_len = len; 5812 ctsio->kern_total_len = len; 5813 ctsio->kern_data_resid = 0; 5814 ctsio->kern_rel_offset = 0; 5815 ctsio->kern_sg_entries = 0; 5816 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5817 ctsio->be_move_done = ctl_config_move_done; 5818 ctl_datamove((union ctl_io *)ctsio); 5819 5820 return (CTL_RETVAL_COMPLETE); 5821 } 5822 5823 ctl_set_success(ctsio); 5824 ctl_done((union ctl_io *)ctsio); 5825 return (CTL_RETVAL_COMPLETE); 5826} 5827 5828int 5829ctl_write_same(struct ctl_scsiio *ctsio) 5830{ 5831 struct ctl_lun *lun; 5832 struct ctl_lba_len_flags *lbalen; 5833 uint64_t lba; 5834 uint32_t num_blocks; 5835 int len, retval; 5836 uint8_t byte2; 5837 5838 retval = CTL_RETVAL_COMPLETE; 5839 5840 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5841 5842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5843 5844 switch (ctsio->cdb[0]) { 5845 case WRITE_SAME_10: { 5846 struct scsi_write_same_10 *cdb; 5847 5848 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5849 5850 lba = scsi_4btoul(cdb->addr); 5851 num_blocks = scsi_2btoul(cdb->length); 5852 byte2 = cdb->byte2; 5853 break; 5854 } 5855 case WRITE_SAME_16: { 5856 struct scsi_write_same_16 *cdb; 5857 5858 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5859 5860 lba = scsi_8btou64(cdb->addr); 5861 num_blocks = scsi_4btoul(cdb->length); 5862 byte2 = cdb->byte2; 5863 break; 5864 } 5865 default: 5866 /* 5867 * We got a command we don't support. This shouldn't 5868 * happen, commands should be filtered out above us. 5869 */ 5870 ctl_set_invalid_opcode(ctsio); 5871 ctl_done((union ctl_io *)ctsio); 5872 5873 return (CTL_RETVAL_COMPLETE); 5874 break; /* NOTREACHED */ 5875 } 5876 5877 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5878 if ((byte2 & SWS_UNMAP) == 0 && 5879 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5880 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5881 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5882 ctl_done((union ctl_io *)ctsio); 5883 return (CTL_RETVAL_COMPLETE); 5884 } 5885 5886 /* 5887 * The first check is to make sure we're in bounds, the second 5888 * check is to catch wrap-around problems. If the lba + num blocks 5889 * is less than the lba, then we've wrapped around and the block 5890 * range is invalid anyway. 5891 */ 5892 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5893 || ((lba + num_blocks) < lba)) { 5894 ctl_set_lba_out_of_range(ctsio); 5895 ctl_done((union ctl_io *)ctsio); 5896 return (CTL_RETVAL_COMPLETE); 5897 } 5898 5899 /* Zero number of blocks means "to the last logical block" */ 5900 if (num_blocks == 0) { 5901 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5902 ctl_set_invalid_field(ctsio, 5903 /*sks_valid*/ 0, 5904 /*command*/ 1, 5905 /*field*/ 0, 5906 /*bit_valid*/ 0, 5907 /*bit*/ 0); 5908 ctl_done((union ctl_io *)ctsio); 5909 return (CTL_RETVAL_COMPLETE); 5910 } 5911 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5912 } 5913 5914 len = lun->be_lun->blocksize; 5915 5916 /* 5917 * If we've got a kernel request that hasn't been malloced yet, 5918 * malloc it and tell the caller the data buffer is here. 5919 */ 5920 if ((byte2 & SWS_NDOB) == 0 && 5921 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5922 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5923 ctsio->kern_data_len = len; 5924 ctsio->kern_total_len = len; 5925 ctsio->kern_data_resid = 0; 5926 ctsio->kern_rel_offset = 0; 5927 ctsio->kern_sg_entries = 0; 5928 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5929 ctsio->be_move_done = ctl_config_move_done; 5930 ctl_datamove((union ctl_io *)ctsio); 5931 5932 return (CTL_RETVAL_COMPLETE); 5933 } 5934 5935 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5936 lbalen->lba = lba; 5937 lbalen->len = num_blocks; 5938 lbalen->flags = byte2; 5939 retval = lun->backend->config_write((union ctl_io *)ctsio); 5940 5941 return (retval); 5942} 5943 5944int 5945ctl_unmap(struct ctl_scsiio *ctsio) 5946{ 5947 struct ctl_lun *lun; 5948 struct scsi_unmap *cdb; 5949 struct ctl_ptr_len_flags *ptrlen; 5950 struct scsi_unmap_header *hdr; 5951 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5952 uint64_t lba; 5953 uint32_t num_blocks; 5954 int len, retval; 5955 uint8_t byte2; 5956 5957 retval = CTL_RETVAL_COMPLETE; 5958 5959 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5960 5961 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5962 cdb = (struct scsi_unmap *)ctsio->cdb; 5963 5964 len = scsi_2btoul(cdb->length); 5965 byte2 = cdb->byte2; 5966 5967 /* 5968 * If we've got a kernel request that hasn't been malloced yet, 5969 * malloc it and tell the caller the data buffer is here. 5970 */ 5971 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5972 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5973 ctsio->kern_data_len = len; 5974 ctsio->kern_total_len = len; 5975 ctsio->kern_data_resid = 0; 5976 ctsio->kern_rel_offset = 0; 5977 ctsio->kern_sg_entries = 0; 5978 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5979 ctsio->be_move_done = ctl_config_move_done; 5980 ctl_datamove((union ctl_io *)ctsio); 5981 5982 return (CTL_RETVAL_COMPLETE); 5983 } 5984 5985 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5986 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5987 if (len < sizeof (*hdr) || 5988 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5989 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5990 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5991 ctl_set_invalid_field(ctsio, 5992 /*sks_valid*/ 0, 5993 /*command*/ 0, 5994 /*field*/ 0, 5995 /*bit_valid*/ 0, 5996 /*bit*/ 0); 5997 goto done; 5998 } 5999 len = scsi_2btoul(hdr->desc_length); 6000 buf = (struct scsi_unmap_desc *)(hdr + 1); 6001 end = buf + len / sizeof(*buf); 6002 6003 endnz = buf; 6004 for (range = buf; range < end; range++) { 6005 lba = scsi_8btou64(range->lba); 6006 num_blocks = scsi_4btoul(range->length); 6007 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6008 || ((lba + num_blocks) < lba)) { 6009 ctl_set_lba_out_of_range(ctsio); 6010 ctl_done((union ctl_io *)ctsio); 6011 return (CTL_RETVAL_COMPLETE); 6012 } 6013 if (num_blocks != 0) 6014 endnz = range + 1; 6015 } 6016 6017 /* 6018 * Block backend can not handle zero last range. 6019 * Filter it out and return if there is nothing left. 6020 */ 6021 len = (uint8_t *)endnz - (uint8_t *)buf; 6022 if (len == 0) { 6023 ctl_set_success(ctsio); 6024 goto done; 6025 } 6026 6027 mtx_lock(&lun->lun_lock); 6028 ptrlen = (struct ctl_ptr_len_flags *) 6029 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6030 ptrlen->ptr = (void *)buf; 6031 ptrlen->len = len; 6032 ptrlen->flags = byte2; 6033 ctl_check_blocked(lun); 6034 mtx_unlock(&lun->lun_lock); 6035 6036 retval = lun->backend->config_write((union ctl_io *)ctsio); 6037 return (retval); 6038 6039done: 6040 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6041 free(ctsio->kern_data_ptr, M_CTL); 6042 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6043 } 6044 ctl_done((union ctl_io *)ctsio); 6045 return (CTL_RETVAL_COMPLETE); 6046} 6047 6048/* 6049 * Note that this function currently doesn't actually do anything inside 6050 * CTL to enforce things if the DQue bit is turned on. 6051 * 6052 * Also note that this function can't be used in the default case, because 6053 * the DQue bit isn't set in the changeable mask for the control mode page 6054 * anyway. This is just here as an example for how to implement a page 6055 * handler, and a placeholder in case we want to allow the user to turn 6056 * tagged queueing on and off. 6057 * 6058 * The D_SENSE bit handling is functional, however, and will turn 6059 * descriptor sense on and off for a given LUN. 6060 */ 6061int 6062ctl_control_page_handler(struct ctl_scsiio *ctsio, 6063 struct ctl_page_index *page_index, uint8_t *page_ptr) 6064{ 6065 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6066 struct ctl_lun *lun; 6067 struct ctl_softc *softc; 6068 int set_ua; 6069 uint32_t initidx; 6070 6071 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6072 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6073 set_ua = 0; 6074 6075 user_cp = (struct scsi_control_page *)page_ptr; 6076 current_cp = (struct scsi_control_page *) 6077 (page_index->page_data + (page_index->page_len * 6078 CTL_PAGE_CURRENT)); 6079 saved_cp = (struct scsi_control_page *) 6080 (page_index->page_data + (page_index->page_len * 6081 CTL_PAGE_SAVED)); 6082 6083 softc = control_softc; 6084 6085 mtx_lock(&lun->lun_lock); 6086 if (((current_cp->rlec & SCP_DSENSE) == 0) 6087 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6088 /* 6089 * Descriptor sense is currently turned off and the user 6090 * wants to turn it on. 6091 */ 6092 current_cp->rlec |= SCP_DSENSE; 6093 saved_cp->rlec |= SCP_DSENSE; 6094 lun->flags |= CTL_LUN_SENSE_DESC; 6095 set_ua = 1; 6096 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6097 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6098 /* 6099 * Descriptor sense is currently turned on, and the user 6100 * wants to turn it off. 6101 */ 6102 current_cp->rlec &= ~SCP_DSENSE; 6103 saved_cp->rlec &= ~SCP_DSENSE; 6104 lun->flags &= ~CTL_LUN_SENSE_DESC; 6105 set_ua = 1; 6106 } 6107 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6108 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6109 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6110 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6111 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6112 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6113 set_ua = 1; 6114 } 6115 if ((current_cp->eca_and_aen & SCP_SWP) != 6116 (user_cp->eca_and_aen & SCP_SWP)) { 6117 current_cp->eca_and_aen &= ~SCP_SWP; 6118 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6119 saved_cp->eca_and_aen &= ~SCP_SWP; 6120 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6121 set_ua = 1; 6122 } 6123 if (set_ua != 0) 6124 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6125 mtx_unlock(&lun->lun_lock); 6126 6127 return (0); 6128} 6129 6130int 6131ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6132 struct ctl_page_index *page_index, uint8_t *page_ptr) 6133{ 6134 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6135 struct ctl_lun *lun; 6136 int set_ua; 6137 uint32_t initidx; 6138 6139 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6140 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6141 set_ua = 0; 6142 6143 user_cp = (struct scsi_caching_page *)page_ptr; 6144 current_cp = (struct scsi_caching_page *) 6145 (page_index->page_data + (page_index->page_len * 6146 CTL_PAGE_CURRENT)); 6147 saved_cp = (struct scsi_caching_page *) 6148 (page_index->page_data + (page_index->page_len * 6149 CTL_PAGE_SAVED)); 6150 6151 mtx_lock(&lun->lun_lock); 6152 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6153 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6154 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6155 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6156 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6157 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6158 set_ua = 1; 6159 } 6160 if (set_ua != 0) 6161 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6162 mtx_unlock(&lun->lun_lock); 6163 6164 return (0); 6165} 6166 6167int 6168ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6169 struct ctl_page_index *page_index, 6170 uint8_t *page_ptr) 6171{ 6172 uint8_t *c; 6173 int i; 6174 6175 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6176 ctl_time_io_secs = 6177 (c[0] << 8) | 6178 (c[1] << 0) | 6179 0; 6180 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6181 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6182 printf("page data:"); 6183 for (i=0; i<8; i++) 6184 printf(" %.2x",page_ptr[i]); 6185 printf("\n"); 6186 return (0); 6187} 6188 6189int 6190ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6191 struct ctl_page_index *page_index, 6192 int pc) 6193{ 6194 struct copan_debugconf_subpage *page; 6195 6196 page = (struct copan_debugconf_subpage *)page_index->page_data + 6197 (page_index->page_len * pc); 6198 6199 switch (pc) { 6200 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6201 case SMS_PAGE_CTRL_DEFAULT >> 6: 6202 case SMS_PAGE_CTRL_SAVED >> 6: 6203 /* 6204 * We don't update the changable or default bits for this page. 6205 */ 6206 break; 6207 case SMS_PAGE_CTRL_CURRENT >> 6: 6208 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6209 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6210 break; 6211 default: 6212#ifdef NEEDTOPORT 6213 EPRINT(0, "Invalid PC %d!!", pc); 6214#endif /* NEEDTOPORT */ 6215 break; 6216 } 6217 return (0); 6218} 6219 6220 6221static int 6222ctl_do_mode_select(union ctl_io *io) 6223{ 6224 struct scsi_mode_page_header *page_header; 6225 struct ctl_page_index *page_index; 6226 struct ctl_scsiio *ctsio; 6227 int control_dev, page_len; 6228 int page_len_offset, page_len_size; 6229 union ctl_modepage_info *modepage_info; 6230 struct ctl_lun *lun; 6231 int *len_left, *len_used; 6232 int retval, i; 6233 6234 ctsio = &io->scsiio; 6235 page_index = NULL; 6236 page_len = 0; 6237 retval = CTL_RETVAL_COMPLETE; 6238 6239 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6240 6241 if (lun->be_lun->lun_type != T_DIRECT) 6242 control_dev = 1; 6243 else 6244 control_dev = 0; 6245 6246 modepage_info = (union ctl_modepage_info *) 6247 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6248 len_left = &modepage_info->header.len_left; 6249 len_used = &modepage_info->header.len_used; 6250 6251do_next_page: 6252 6253 page_header = (struct scsi_mode_page_header *) 6254 (ctsio->kern_data_ptr + *len_used); 6255 6256 if (*len_left == 0) { 6257 free(ctsio->kern_data_ptr, M_CTL); 6258 ctl_set_success(ctsio); 6259 ctl_done((union ctl_io *)ctsio); 6260 return (CTL_RETVAL_COMPLETE); 6261 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6262 6263 free(ctsio->kern_data_ptr, M_CTL); 6264 ctl_set_param_len_error(ctsio); 6265 ctl_done((union ctl_io *)ctsio); 6266 return (CTL_RETVAL_COMPLETE); 6267 6268 } else if ((page_header->page_code & SMPH_SPF) 6269 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6270 6271 free(ctsio->kern_data_ptr, M_CTL); 6272 ctl_set_param_len_error(ctsio); 6273 ctl_done((union ctl_io *)ctsio); 6274 return (CTL_RETVAL_COMPLETE); 6275 } 6276 6277 6278 /* 6279 * XXX KDM should we do something with the block descriptor? 6280 */ 6281 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6282 6283 if ((control_dev != 0) 6284 && (lun->mode_pages.index[i].page_flags & 6285 CTL_PAGE_FLAG_DISK_ONLY)) 6286 continue; 6287 6288 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6289 (page_header->page_code & SMPH_PC_MASK)) 6290 continue; 6291 6292 /* 6293 * If neither page has a subpage code, then we've got a 6294 * match. 6295 */ 6296 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6297 && ((page_header->page_code & SMPH_SPF) == 0)) { 6298 page_index = &lun->mode_pages.index[i]; 6299 page_len = page_header->page_length; 6300 break; 6301 } 6302 6303 /* 6304 * If both pages have subpages, then the subpage numbers 6305 * have to match. 6306 */ 6307 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6308 && (page_header->page_code & SMPH_SPF)) { 6309 struct scsi_mode_page_header_sp *sph; 6310 6311 sph = (struct scsi_mode_page_header_sp *)page_header; 6312 6313 if (lun->mode_pages.index[i].subpage == 6314 sph->subpage) { 6315 page_index = &lun->mode_pages.index[i]; 6316 page_len = scsi_2btoul(sph->page_length); 6317 break; 6318 } 6319 } 6320 } 6321 6322 /* 6323 * If we couldn't find the page, or if we don't have a mode select 6324 * handler for it, send back an error to the user. 6325 */ 6326 if ((page_index == NULL) 6327 || (page_index->select_handler == NULL)) { 6328 ctl_set_invalid_field(ctsio, 6329 /*sks_valid*/ 1, 6330 /*command*/ 0, 6331 /*field*/ *len_used, 6332 /*bit_valid*/ 0, 6333 /*bit*/ 0); 6334 free(ctsio->kern_data_ptr, M_CTL); 6335 ctl_done((union ctl_io *)ctsio); 6336 return (CTL_RETVAL_COMPLETE); 6337 } 6338 6339 if (page_index->page_code & SMPH_SPF) { 6340 page_len_offset = 2; 6341 page_len_size = 2; 6342 } else { 6343 page_len_size = 1; 6344 page_len_offset = 1; 6345 } 6346 6347 /* 6348 * If the length the initiator gives us isn't the one we specify in 6349 * the mode page header, or if they didn't specify enough data in 6350 * the CDB to avoid truncating this page, kick out the request. 6351 */ 6352 if ((page_len != (page_index->page_len - page_len_offset - 6353 page_len_size)) 6354 || (*len_left < page_index->page_len)) { 6355 6356 6357 ctl_set_invalid_field(ctsio, 6358 /*sks_valid*/ 1, 6359 /*command*/ 0, 6360 /*field*/ *len_used + page_len_offset, 6361 /*bit_valid*/ 0, 6362 /*bit*/ 0); 6363 free(ctsio->kern_data_ptr, M_CTL); 6364 ctl_done((union ctl_io *)ctsio); 6365 return (CTL_RETVAL_COMPLETE); 6366 } 6367 6368 /* 6369 * Run through the mode page, checking to make sure that the bits 6370 * the user changed are actually legal for him to change. 6371 */ 6372 for (i = 0; i < page_index->page_len; i++) { 6373 uint8_t *user_byte, *change_mask, *current_byte; 6374 int bad_bit; 6375 int j; 6376 6377 user_byte = (uint8_t *)page_header + i; 6378 change_mask = page_index->page_data + 6379 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6380 current_byte = page_index->page_data + 6381 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6382 6383 /* 6384 * Check to see whether the user set any bits in this byte 6385 * that he is not allowed to set. 6386 */ 6387 if ((*user_byte & ~(*change_mask)) == 6388 (*current_byte & ~(*change_mask))) 6389 continue; 6390 6391 /* 6392 * Go through bit by bit to determine which one is illegal. 6393 */ 6394 bad_bit = 0; 6395 for (j = 7; j >= 0; j--) { 6396 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6397 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6398 bad_bit = i; 6399 break; 6400 } 6401 } 6402 ctl_set_invalid_field(ctsio, 6403 /*sks_valid*/ 1, 6404 /*command*/ 0, 6405 /*field*/ *len_used + i, 6406 /*bit_valid*/ 1, 6407 /*bit*/ bad_bit); 6408 free(ctsio->kern_data_ptr, M_CTL); 6409 ctl_done((union ctl_io *)ctsio); 6410 return (CTL_RETVAL_COMPLETE); 6411 } 6412 6413 /* 6414 * Decrement these before we call the page handler, since we may 6415 * end up getting called back one way or another before the handler 6416 * returns to this context. 6417 */ 6418 *len_left -= page_index->page_len; 6419 *len_used += page_index->page_len; 6420 6421 retval = page_index->select_handler(ctsio, page_index, 6422 (uint8_t *)page_header); 6423 6424 /* 6425 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6426 * wait until this queued command completes to finish processing 6427 * the mode page. If it returns anything other than 6428 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6429 * already set the sense information, freed the data pointer, and 6430 * completed the io for us. 6431 */ 6432 if (retval != CTL_RETVAL_COMPLETE) 6433 goto bailout_no_done; 6434 6435 /* 6436 * If the initiator sent us more than one page, parse the next one. 6437 */ 6438 if (*len_left > 0) 6439 goto do_next_page; 6440 6441 ctl_set_success(ctsio); 6442 free(ctsio->kern_data_ptr, M_CTL); 6443 ctl_done((union ctl_io *)ctsio); 6444 6445bailout_no_done: 6446 6447 return (CTL_RETVAL_COMPLETE); 6448 6449} 6450 6451int 6452ctl_mode_select(struct ctl_scsiio *ctsio) 6453{ 6454 int param_len, pf, sp; 6455 int header_size, bd_len; 6456 int len_left, len_used; 6457 struct ctl_page_index *page_index; 6458 struct ctl_lun *lun; 6459 int control_dev, page_len; 6460 union ctl_modepage_info *modepage_info; 6461 int retval; 6462 6463 pf = 0; 6464 sp = 0; 6465 page_len = 0; 6466 len_used = 0; 6467 len_left = 0; 6468 retval = 0; 6469 bd_len = 0; 6470 page_index = NULL; 6471 6472 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6473 6474 if (lun->be_lun->lun_type != T_DIRECT) 6475 control_dev = 1; 6476 else 6477 control_dev = 0; 6478 6479 switch (ctsio->cdb[0]) { 6480 case MODE_SELECT_6: { 6481 struct scsi_mode_select_6 *cdb; 6482 6483 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6484 6485 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6486 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6487 6488 param_len = cdb->length; 6489 header_size = sizeof(struct scsi_mode_header_6); 6490 break; 6491 } 6492 case MODE_SELECT_10: { 6493 struct scsi_mode_select_10 *cdb; 6494 6495 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6496 6497 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6498 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6499 6500 param_len = scsi_2btoul(cdb->length); 6501 header_size = sizeof(struct scsi_mode_header_10); 6502 break; 6503 } 6504 default: 6505 ctl_set_invalid_opcode(ctsio); 6506 ctl_done((union ctl_io *)ctsio); 6507 return (CTL_RETVAL_COMPLETE); 6508 break; /* NOTREACHED */ 6509 } 6510 6511 /* 6512 * From SPC-3: 6513 * "A parameter list length of zero indicates that the Data-Out Buffer 6514 * shall be empty. This condition shall not be considered as an error." 6515 */ 6516 if (param_len == 0) { 6517 ctl_set_success(ctsio); 6518 ctl_done((union ctl_io *)ctsio); 6519 return (CTL_RETVAL_COMPLETE); 6520 } 6521 6522 /* 6523 * Since we'll hit this the first time through, prior to 6524 * allocation, we don't need to free a data buffer here. 6525 */ 6526 if (param_len < header_size) { 6527 ctl_set_param_len_error(ctsio); 6528 ctl_done((union ctl_io *)ctsio); 6529 return (CTL_RETVAL_COMPLETE); 6530 } 6531 6532 /* 6533 * Allocate the data buffer and grab the user's data. In theory, 6534 * we shouldn't have to sanity check the parameter list length here 6535 * because the maximum size is 64K. We should be able to malloc 6536 * that much without too many problems. 6537 */ 6538 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6539 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6540 ctsio->kern_data_len = param_len; 6541 ctsio->kern_total_len = param_len; 6542 ctsio->kern_data_resid = 0; 6543 ctsio->kern_rel_offset = 0; 6544 ctsio->kern_sg_entries = 0; 6545 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6546 ctsio->be_move_done = ctl_config_move_done; 6547 ctl_datamove((union ctl_io *)ctsio); 6548 6549 return (CTL_RETVAL_COMPLETE); 6550 } 6551 6552 switch (ctsio->cdb[0]) { 6553 case MODE_SELECT_6: { 6554 struct scsi_mode_header_6 *mh6; 6555 6556 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6557 bd_len = mh6->blk_desc_len; 6558 break; 6559 } 6560 case MODE_SELECT_10: { 6561 struct scsi_mode_header_10 *mh10; 6562 6563 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6564 bd_len = scsi_2btoul(mh10->blk_desc_len); 6565 break; 6566 } 6567 default: 6568 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6569 break; 6570 } 6571 6572 if (param_len < (header_size + bd_len)) { 6573 free(ctsio->kern_data_ptr, M_CTL); 6574 ctl_set_param_len_error(ctsio); 6575 ctl_done((union ctl_io *)ctsio); 6576 return (CTL_RETVAL_COMPLETE); 6577 } 6578 6579 /* 6580 * Set the IO_CONT flag, so that if this I/O gets passed to 6581 * ctl_config_write_done(), it'll get passed back to 6582 * ctl_do_mode_select() for further processing, or completion if 6583 * we're all done. 6584 */ 6585 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6586 ctsio->io_cont = ctl_do_mode_select; 6587 6588 modepage_info = (union ctl_modepage_info *) 6589 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6590 6591 memset(modepage_info, 0, sizeof(*modepage_info)); 6592 6593 len_left = param_len - header_size - bd_len; 6594 len_used = header_size + bd_len; 6595 6596 modepage_info->header.len_left = len_left; 6597 modepage_info->header.len_used = len_used; 6598 6599 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6600} 6601 6602int 6603ctl_mode_sense(struct ctl_scsiio *ctsio) 6604{ 6605 struct ctl_lun *lun; 6606 int pc, page_code, dbd, llba, subpage; 6607 int alloc_len, page_len, header_len, total_len; 6608 struct scsi_mode_block_descr *block_desc; 6609 struct ctl_page_index *page_index; 6610 int control_dev; 6611 6612 dbd = 0; 6613 llba = 0; 6614 block_desc = NULL; 6615 page_index = NULL; 6616 6617 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6618 6619 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6620 6621 if (lun->be_lun->lun_type != T_DIRECT) 6622 control_dev = 1; 6623 else 6624 control_dev = 0; 6625 6626 switch (ctsio->cdb[0]) { 6627 case MODE_SENSE_6: { 6628 struct scsi_mode_sense_6 *cdb; 6629 6630 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6631 6632 header_len = sizeof(struct scsi_mode_hdr_6); 6633 if (cdb->byte2 & SMS_DBD) 6634 dbd = 1; 6635 else 6636 header_len += sizeof(struct scsi_mode_block_descr); 6637 6638 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6639 page_code = cdb->page & SMS_PAGE_CODE; 6640 subpage = cdb->subpage; 6641 alloc_len = cdb->length; 6642 break; 6643 } 6644 case MODE_SENSE_10: { 6645 struct scsi_mode_sense_10 *cdb; 6646 6647 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6648 6649 header_len = sizeof(struct scsi_mode_hdr_10); 6650 6651 if (cdb->byte2 & SMS_DBD) 6652 dbd = 1; 6653 else 6654 header_len += sizeof(struct scsi_mode_block_descr); 6655 if (cdb->byte2 & SMS10_LLBAA) 6656 llba = 1; 6657 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6658 page_code = cdb->page & SMS_PAGE_CODE; 6659 subpage = cdb->subpage; 6660 alloc_len = scsi_2btoul(cdb->length); 6661 break; 6662 } 6663 default: 6664 ctl_set_invalid_opcode(ctsio); 6665 ctl_done((union ctl_io *)ctsio); 6666 return (CTL_RETVAL_COMPLETE); 6667 break; /* NOTREACHED */ 6668 } 6669 6670 /* 6671 * We have to make a first pass through to calculate the size of 6672 * the pages that match the user's query. Then we allocate enough 6673 * memory to hold it, and actually copy the data into the buffer. 6674 */ 6675 switch (page_code) { 6676 case SMS_ALL_PAGES_PAGE: { 6677 int i; 6678 6679 page_len = 0; 6680 6681 /* 6682 * At the moment, values other than 0 and 0xff here are 6683 * reserved according to SPC-3. 6684 */ 6685 if ((subpage != SMS_SUBPAGE_PAGE_0) 6686 && (subpage != SMS_SUBPAGE_ALL)) { 6687 ctl_set_invalid_field(ctsio, 6688 /*sks_valid*/ 1, 6689 /*command*/ 1, 6690 /*field*/ 3, 6691 /*bit_valid*/ 0, 6692 /*bit*/ 0); 6693 ctl_done((union ctl_io *)ctsio); 6694 return (CTL_RETVAL_COMPLETE); 6695 } 6696 6697 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6698 if ((control_dev != 0) 6699 && (lun->mode_pages.index[i].page_flags & 6700 CTL_PAGE_FLAG_DISK_ONLY)) 6701 continue; 6702 6703 /* 6704 * We don't use this subpage if the user didn't 6705 * request all subpages. 6706 */ 6707 if ((lun->mode_pages.index[i].subpage != 0) 6708 && (subpage == SMS_SUBPAGE_PAGE_0)) 6709 continue; 6710 6711#if 0 6712 printf("found page %#x len %d\n", 6713 lun->mode_pages.index[i].page_code & 6714 SMPH_PC_MASK, 6715 lun->mode_pages.index[i].page_len); 6716#endif 6717 page_len += lun->mode_pages.index[i].page_len; 6718 } 6719 break; 6720 } 6721 default: { 6722 int i; 6723 6724 page_len = 0; 6725 6726 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6727 /* Look for the right page code */ 6728 if ((lun->mode_pages.index[i].page_code & 6729 SMPH_PC_MASK) != page_code) 6730 continue; 6731 6732 /* Look for the right subpage or the subpage wildcard*/ 6733 if ((lun->mode_pages.index[i].subpage != subpage) 6734 && (subpage != SMS_SUBPAGE_ALL)) 6735 continue; 6736 6737 /* Make sure the page is supported for this dev type */ 6738 if ((control_dev != 0) 6739 && (lun->mode_pages.index[i].page_flags & 6740 CTL_PAGE_FLAG_DISK_ONLY)) 6741 continue; 6742 6743#if 0 6744 printf("found page %#x len %d\n", 6745 lun->mode_pages.index[i].page_code & 6746 SMPH_PC_MASK, 6747 lun->mode_pages.index[i].page_len); 6748#endif 6749 6750 page_len += lun->mode_pages.index[i].page_len; 6751 } 6752 6753 if (page_len == 0) { 6754 ctl_set_invalid_field(ctsio, 6755 /*sks_valid*/ 1, 6756 /*command*/ 1, 6757 /*field*/ 2, 6758 /*bit_valid*/ 1, 6759 /*bit*/ 5); 6760 ctl_done((union ctl_io *)ctsio); 6761 return (CTL_RETVAL_COMPLETE); 6762 } 6763 break; 6764 } 6765 } 6766 6767 total_len = header_len + page_len; 6768#if 0 6769 printf("header_len = %d, page_len = %d, total_len = %d\n", 6770 header_len, page_len, total_len); 6771#endif 6772 6773 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6774 ctsio->kern_sg_entries = 0; 6775 ctsio->kern_data_resid = 0; 6776 ctsio->kern_rel_offset = 0; 6777 if (total_len < alloc_len) { 6778 ctsio->residual = alloc_len - total_len; 6779 ctsio->kern_data_len = total_len; 6780 ctsio->kern_total_len = total_len; 6781 } else { 6782 ctsio->residual = 0; 6783 ctsio->kern_data_len = alloc_len; 6784 ctsio->kern_total_len = alloc_len; 6785 } 6786 6787 switch (ctsio->cdb[0]) { 6788 case MODE_SENSE_6: { 6789 struct scsi_mode_hdr_6 *header; 6790 6791 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6792 6793 header->datalen = ctl_min(total_len - 1, 254); 6794 if (control_dev == 0) { 6795 header->dev_specific = 0x10; /* DPOFUA */ 6796 if ((lun->flags & CTL_LUN_READONLY) || 6797 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6798 .eca_and_aen & SCP_SWP) != 0) 6799 header->dev_specific |= 0x80; /* WP */ 6800 } 6801 if (dbd) 6802 header->block_descr_len = 0; 6803 else 6804 header->block_descr_len = 6805 sizeof(struct scsi_mode_block_descr); 6806 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6807 break; 6808 } 6809 case MODE_SENSE_10: { 6810 struct scsi_mode_hdr_10 *header; 6811 int datalen; 6812 6813 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6814 6815 datalen = ctl_min(total_len - 2, 65533); 6816 scsi_ulto2b(datalen, header->datalen); 6817 if (control_dev == 0) { 6818 header->dev_specific = 0x10; /* DPOFUA */ 6819 if ((lun->flags & CTL_LUN_READONLY) || 6820 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6821 .eca_and_aen & SCP_SWP) != 0) 6822 header->dev_specific |= 0x80; /* WP */ 6823 } 6824 if (dbd) 6825 scsi_ulto2b(0, header->block_descr_len); 6826 else 6827 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6828 header->block_descr_len); 6829 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6830 break; 6831 } 6832 default: 6833 panic("invalid CDB type %#x", ctsio->cdb[0]); 6834 break; /* NOTREACHED */ 6835 } 6836 6837 /* 6838 * If we've got a disk, use its blocksize in the block 6839 * descriptor. Otherwise, just set it to 0. 6840 */ 6841 if (dbd == 0) { 6842 if (control_dev == 0) 6843 scsi_ulto3b(lun->be_lun->blocksize, 6844 block_desc->block_len); 6845 else 6846 scsi_ulto3b(0, block_desc->block_len); 6847 } 6848 6849 switch (page_code) { 6850 case SMS_ALL_PAGES_PAGE: { 6851 int i, data_used; 6852 6853 data_used = header_len; 6854 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6855 struct ctl_page_index *page_index; 6856 6857 page_index = &lun->mode_pages.index[i]; 6858 6859 if ((control_dev != 0) 6860 && (page_index->page_flags & 6861 CTL_PAGE_FLAG_DISK_ONLY)) 6862 continue; 6863 6864 /* 6865 * We don't use this subpage if the user didn't 6866 * request all subpages. We already checked (above) 6867 * to make sure the user only specified a subpage 6868 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6869 */ 6870 if ((page_index->subpage != 0) 6871 && (subpage == SMS_SUBPAGE_PAGE_0)) 6872 continue; 6873 6874 /* 6875 * Call the handler, if it exists, to update the 6876 * page to the latest values. 6877 */ 6878 if (page_index->sense_handler != NULL) 6879 page_index->sense_handler(ctsio, page_index,pc); 6880 6881 memcpy(ctsio->kern_data_ptr + data_used, 6882 page_index->page_data + 6883 (page_index->page_len * pc), 6884 page_index->page_len); 6885 data_used += page_index->page_len; 6886 } 6887 break; 6888 } 6889 default: { 6890 int i, data_used; 6891 6892 data_used = header_len; 6893 6894 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6895 struct ctl_page_index *page_index; 6896 6897 page_index = &lun->mode_pages.index[i]; 6898 6899 /* Look for the right page code */ 6900 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6901 continue; 6902 6903 /* Look for the right subpage or the subpage wildcard*/ 6904 if ((page_index->subpage != subpage) 6905 && (subpage != SMS_SUBPAGE_ALL)) 6906 continue; 6907 6908 /* Make sure the page is supported for this dev type */ 6909 if ((control_dev != 0) 6910 && (page_index->page_flags & 6911 CTL_PAGE_FLAG_DISK_ONLY)) 6912 continue; 6913 6914 /* 6915 * Call the handler, if it exists, to update the 6916 * page to the latest values. 6917 */ 6918 if (page_index->sense_handler != NULL) 6919 page_index->sense_handler(ctsio, page_index,pc); 6920 6921 memcpy(ctsio->kern_data_ptr + data_used, 6922 page_index->page_data + 6923 (page_index->page_len * pc), 6924 page_index->page_len); 6925 data_used += page_index->page_len; 6926 } 6927 break; 6928 } 6929 } 6930 6931 ctl_set_success(ctsio); 6932 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6933 ctsio->be_move_done = ctl_config_move_done; 6934 ctl_datamove((union ctl_io *)ctsio); 6935 return (CTL_RETVAL_COMPLETE); 6936} 6937 6938int 6939ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6940 struct ctl_page_index *page_index, 6941 int pc) 6942{ 6943 struct ctl_lun *lun; 6944 struct scsi_log_param_header *phdr; 6945 uint8_t *data; 6946 uint64_t val; 6947 6948 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6949 data = page_index->page_data; 6950 6951 if (lun->backend->lun_attr != NULL && 6952 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6953 != UINT64_MAX) { 6954 phdr = (struct scsi_log_param_header *)data; 6955 scsi_ulto2b(0x0001, phdr->param_code); 6956 phdr->param_control = SLP_LBIN | SLP_LP; 6957 phdr->param_len = 8; 6958 data = (uint8_t *)(phdr + 1); 6959 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6960 data[4] = 0x02; /* per-pool */ 6961 data += phdr->param_len; 6962 } 6963 6964 if (lun->backend->lun_attr != NULL && 6965 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6966 != UINT64_MAX) { 6967 phdr = (struct scsi_log_param_header *)data; 6968 scsi_ulto2b(0x0002, phdr->param_code); 6969 phdr->param_control = SLP_LBIN | SLP_LP; 6970 phdr->param_len = 8; 6971 data = (uint8_t *)(phdr + 1); 6972 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6973 data[4] = 0x01; /* per-LUN */ 6974 data += phdr->param_len; 6975 } 6976 6977 if (lun->backend->lun_attr != NULL && 6978 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6979 != UINT64_MAX) { 6980 phdr = (struct scsi_log_param_header *)data; 6981 scsi_ulto2b(0x00f1, phdr->param_code); 6982 phdr->param_control = SLP_LBIN | SLP_LP; 6983 phdr->param_len = 8; 6984 data = (uint8_t *)(phdr + 1); 6985 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6986 data[4] = 0x02; /* per-pool */ 6987 data += phdr->param_len; 6988 } 6989 6990 if (lun->backend->lun_attr != NULL && 6991 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6992 != UINT64_MAX) { 6993 phdr = (struct scsi_log_param_header *)data; 6994 scsi_ulto2b(0x00f2, phdr->param_code); 6995 phdr->param_control = SLP_LBIN | SLP_LP; 6996 phdr->param_len = 8; 6997 data = (uint8_t *)(phdr + 1); 6998 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6999 data[4] = 0x02; /* per-pool */ 7000 data += phdr->param_len; 7001 } 7002 7003 page_index->page_len = data - page_index->page_data; 7004 return (0); 7005} 7006 7007int 7008ctl_log_sense(struct ctl_scsiio *ctsio) 7009{ 7010 struct ctl_lun *lun; 7011 int i, pc, page_code, subpage; 7012 int alloc_len, total_len; 7013 struct ctl_page_index *page_index; 7014 struct scsi_log_sense *cdb; 7015 struct scsi_log_header *header; 7016 7017 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7018 7019 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7020 cdb = (struct scsi_log_sense *)ctsio->cdb; 7021 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7022 page_code = cdb->page & SLS_PAGE_CODE; 7023 subpage = cdb->subpage; 7024 alloc_len = scsi_2btoul(cdb->length); 7025 7026 page_index = NULL; 7027 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7028 page_index = &lun->log_pages.index[i]; 7029 7030 /* Look for the right page code */ 7031 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7032 continue; 7033 7034 /* Look for the right subpage or the subpage wildcard*/ 7035 if (page_index->subpage != subpage) 7036 continue; 7037 7038 break; 7039 } 7040 if (i >= CTL_NUM_LOG_PAGES) { 7041 ctl_set_invalid_field(ctsio, 7042 /*sks_valid*/ 1, 7043 /*command*/ 1, 7044 /*field*/ 2, 7045 /*bit_valid*/ 0, 7046 /*bit*/ 0); 7047 ctl_done((union ctl_io *)ctsio); 7048 return (CTL_RETVAL_COMPLETE); 7049 } 7050 7051 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7052 7053 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7054 ctsio->kern_sg_entries = 0; 7055 ctsio->kern_data_resid = 0; 7056 ctsio->kern_rel_offset = 0; 7057 if (total_len < alloc_len) { 7058 ctsio->residual = alloc_len - total_len; 7059 ctsio->kern_data_len = total_len; 7060 ctsio->kern_total_len = total_len; 7061 } else { 7062 ctsio->residual = 0; 7063 ctsio->kern_data_len = alloc_len; 7064 ctsio->kern_total_len = alloc_len; 7065 } 7066 7067 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7068 header->page = page_index->page_code; 7069 if (page_index->subpage) { 7070 header->page |= SL_SPF; 7071 header->subpage = page_index->subpage; 7072 } 7073 scsi_ulto2b(page_index->page_len, header->datalen); 7074 7075 /* 7076 * Call the handler, if it exists, to update the 7077 * page to the latest values. 7078 */ 7079 if (page_index->sense_handler != NULL) 7080 page_index->sense_handler(ctsio, page_index, pc); 7081 7082 memcpy(header + 1, page_index->page_data, page_index->page_len); 7083 7084 ctl_set_success(ctsio); 7085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7086 ctsio->be_move_done = ctl_config_move_done; 7087 ctl_datamove((union ctl_io *)ctsio); 7088 return (CTL_RETVAL_COMPLETE); 7089} 7090 7091int 7092ctl_read_capacity(struct ctl_scsiio *ctsio) 7093{ 7094 struct scsi_read_capacity *cdb; 7095 struct scsi_read_capacity_data *data; 7096 struct ctl_lun *lun; 7097 uint32_t lba; 7098 7099 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7100 7101 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7102 7103 lba = scsi_4btoul(cdb->addr); 7104 if (((cdb->pmi & SRC_PMI) == 0) 7105 && (lba != 0)) { 7106 ctl_set_invalid_field(/*ctsio*/ ctsio, 7107 /*sks_valid*/ 1, 7108 /*command*/ 1, 7109 /*field*/ 2, 7110 /*bit_valid*/ 0, 7111 /*bit*/ 0); 7112 ctl_done((union ctl_io *)ctsio); 7113 return (CTL_RETVAL_COMPLETE); 7114 } 7115 7116 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7117 7118 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7119 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7120 ctsio->residual = 0; 7121 ctsio->kern_data_len = sizeof(*data); 7122 ctsio->kern_total_len = sizeof(*data); 7123 ctsio->kern_data_resid = 0; 7124 ctsio->kern_rel_offset = 0; 7125 ctsio->kern_sg_entries = 0; 7126 7127 /* 7128 * If the maximum LBA is greater than 0xfffffffe, the user must 7129 * issue a SERVICE ACTION IN (16) command, with the read capacity 7130 * serivce action set. 7131 */ 7132 if (lun->be_lun->maxlba > 0xfffffffe) 7133 scsi_ulto4b(0xffffffff, data->addr); 7134 else 7135 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7136 7137 /* 7138 * XXX KDM this may not be 512 bytes... 7139 */ 7140 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7141 7142 ctl_set_success(ctsio); 7143 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7144 ctsio->be_move_done = ctl_config_move_done; 7145 ctl_datamove((union ctl_io *)ctsio); 7146 return (CTL_RETVAL_COMPLETE); 7147} 7148 7149int 7150ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7151{ 7152 struct scsi_read_capacity_16 *cdb; 7153 struct scsi_read_capacity_data_long *data; 7154 struct ctl_lun *lun; 7155 uint64_t lba; 7156 uint32_t alloc_len; 7157 7158 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7159 7160 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7161 7162 alloc_len = scsi_4btoul(cdb->alloc_len); 7163 lba = scsi_8btou64(cdb->addr); 7164 7165 if ((cdb->reladr & SRC16_PMI) 7166 && (lba != 0)) { 7167 ctl_set_invalid_field(/*ctsio*/ ctsio, 7168 /*sks_valid*/ 1, 7169 /*command*/ 1, 7170 /*field*/ 2, 7171 /*bit_valid*/ 0, 7172 /*bit*/ 0); 7173 ctl_done((union ctl_io *)ctsio); 7174 return (CTL_RETVAL_COMPLETE); 7175 } 7176 7177 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7178 7179 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7180 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7181 7182 if (sizeof(*data) < alloc_len) { 7183 ctsio->residual = alloc_len - sizeof(*data); 7184 ctsio->kern_data_len = sizeof(*data); 7185 ctsio->kern_total_len = sizeof(*data); 7186 } else { 7187 ctsio->residual = 0; 7188 ctsio->kern_data_len = alloc_len; 7189 ctsio->kern_total_len = alloc_len; 7190 } 7191 ctsio->kern_data_resid = 0; 7192 ctsio->kern_rel_offset = 0; 7193 ctsio->kern_sg_entries = 0; 7194 7195 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7196 /* XXX KDM this may not be 512 bytes... */ 7197 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7198 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7199 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7200 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7201 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7202 7203 ctl_set_success(ctsio); 7204 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7205 ctsio->be_move_done = ctl_config_move_done; 7206 ctl_datamove((union ctl_io *)ctsio); 7207 return (CTL_RETVAL_COMPLETE); 7208} 7209 7210int 7211ctl_get_lba_status(struct ctl_scsiio *ctsio) 7212{ 7213 struct scsi_get_lba_status *cdb; 7214 struct scsi_get_lba_status_data *data; 7215 struct ctl_lun *lun; 7216 struct ctl_lba_len_flags *lbalen; 7217 uint64_t lba; 7218 uint32_t alloc_len, total_len; 7219 int retval; 7220 7221 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7222 7223 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7224 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7225 lba = scsi_8btou64(cdb->addr); 7226 alloc_len = scsi_4btoul(cdb->alloc_len); 7227 7228 if (lba > lun->be_lun->maxlba) { 7229 ctl_set_lba_out_of_range(ctsio); 7230 ctl_done((union ctl_io *)ctsio); 7231 return (CTL_RETVAL_COMPLETE); 7232 } 7233 7234 total_len = sizeof(*data) + sizeof(data->descr[0]); 7235 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7236 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7237 7238 if (total_len < alloc_len) { 7239 ctsio->residual = alloc_len - total_len; 7240 ctsio->kern_data_len = total_len; 7241 ctsio->kern_total_len = total_len; 7242 } else { 7243 ctsio->residual = 0; 7244 ctsio->kern_data_len = alloc_len; 7245 ctsio->kern_total_len = alloc_len; 7246 } 7247 ctsio->kern_data_resid = 0; 7248 ctsio->kern_rel_offset = 0; 7249 ctsio->kern_sg_entries = 0; 7250 7251 /* Fill dummy data in case backend can't tell anything. */ 7252 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7253 scsi_u64to8b(lba, data->descr[0].addr); 7254 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7255 data->descr[0].length); 7256 data->descr[0].status = 0; /* Mapped or unknown. */ 7257 7258 ctl_set_success(ctsio); 7259 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7260 ctsio->be_move_done = ctl_config_move_done; 7261 7262 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7263 lbalen->lba = lba; 7264 lbalen->len = total_len; 7265 lbalen->flags = 0; 7266 retval = lun->backend->config_read((union ctl_io *)ctsio); 7267 return (CTL_RETVAL_COMPLETE); 7268} 7269 7270int 7271ctl_read_defect(struct ctl_scsiio *ctsio) 7272{ 7273 struct scsi_read_defect_data_10 *ccb10; 7274 struct scsi_read_defect_data_12 *ccb12; 7275 struct scsi_read_defect_data_hdr_10 *data10; 7276 struct scsi_read_defect_data_hdr_12 *data12; 7277 uint32_t alloc_len, data_len; 7278 uint8_t format; 7279 7280 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7281 7282 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7283 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7284 format = ccb10->format; 7285 alloc_len = scsi_2btoul(ccb10->alloc_length); 7286 data_len = sizeof(*data10); 7287 } else { 7288 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7289 format = ccb12->format; 7290 alloc_len = scsi_4btoul(ccb12->alloc_length); 7291 data_len = sizeof(*data12); 7292 } 7293 if (alloc_len == 0) { 7294 ctl_set_success(ctsio); 7295 ctl_done((union ctl_io *)ctsio); 7296 return (CTL_RETVAL_COMPLETE); 7297 } 7298 7299 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7300 if (data_len < alloc_len) { 7301 ctsio->residual = alloc_len - data_len; 7302 ctsio->kern_data_len = data_len; 7303 ctsio->kern_total_len = data_len; 7304 } else { 7305 ctsio->residual = 0; 7306 ctsio->kern_data_len = alloc_len; 7307 ctsio->kern_total_len = alloc_len; 7308 } 7309 ctsio->kern_data_resid = 0; 7310 ctsio->kern_rel_offset = 0; 7311 ctsio->kern_sg_entries = 0; 7312 7313 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7314 data10 = (struct scsi_read_defect_data_hdr_10 *) 7315 ctsio->kern_data_ptr; 7316 data10->format = format; 7317 scsi_ulto2b(0, data10->length); 7318 } else { 7319 data12 = (struct scsi_read_defect_data_hdr_12 *) 7320 ctsio->kern_data_ptr; 7321 data12->format = format; 7322 scsi_ulto2b(0, data12->generation); 7323 scsi_ulto4b(0, data12->length); 7324 } 7325 7326 ctl_set_success(ctsio); 7327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7328 ctsio->be_move_done = ctl_config_move_done; 7329 ctl_datamove((union ctl_io *)ctsio); 7330 return (CTL_RETVAL_COMPLETE); 7331} 7332 7333int 7334ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7335{ 7336 struct scsi_maintenance_in *cdb; 7337 int retval; 7338 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7339 int num_target_port_groups, num_target_ports; 7340 struct ctl_lun *lun; 7341 struct ctl_softc *softc; 7342 struct ctl_port *port; 7343 struct scsi_target_group_data *rtg_ptr; 7344 struct scsi_target_group_data_extended *rtg_ext_ptr; 7345 struct scsi_target_port_group_descriptor *tpg_desc; 7346 7347 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7348 7349 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7350 softc = control_softc; 7351 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7352 7353 retval = CTL_RETVAL_COMPLETE; 7354 7355 switch (cdb->byte2 & STG_PDF_MASK) { 7356 case STG_PDF_LENGTH: 7357 ext = 0; 7358 break; 7359 case STG_PDF_EXTENDED: 7360 ext = 1; 7361 break; 7362 default: 7363 ctl_set_invalid_field(/*ctsio*/ ctsio, 7364 /*sks_valid*/ 1, 7365 /*command*/ 1, 7366 /*field*/ 2, 7367 /*bit_valid*/ 1, 7368 /*bit*/ 5); 7369 ctl_done((union ctl_io *)ctsio); 7370 return(retval); 7371 } 7372 7373 if (softc->is_single) 7374 num_target_port_groups = 1; 7375 else 7376 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7377 num_target_ports = 0; 7378 mtx_lock(&softc->ctl_lock); 7379 STAILQ_FOREACH(port, &softc->port_list, links) { 7380 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7381 continue; 7382 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7383 continue; 7384 num_target_ports++; 7385 } 7386 mtx_unlock(&softc->ctl_lock); 7387 7388 if (ext) 7389 total_len = sizeof(struct scsi_target_group_data_extended); 7390 else 7391 total_len = sizeof(struct scsi_target_group_data); 7392 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7393 num_target_port_groups + 7394 sizeof(struct scsi_target_port_descriptor) * 7395 num_target_ports * num_target_port_groups; 7396 7397 alloc_len = scsi_4btoul(cdb->length); 7398 7399 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7400 7401 ctsio->kern_sg_entries = 0; 7402 7403 if (total_len < alloc_len) { 7404 ctsio->residual = alloc_len - total_len; 7405 ctsio->kern_data_len = total_len; 7406 ctsio->kern_total_len = total_len; 7407 } else { 7408 ctsio->residual = 0; 7409 ctsio->kern_data_len = alloc_len; 7410 ctsio->kern_total_len = alloc_len; 7411 } 7412 ctsio->kern_data_resid = 0; 7413 ctsio->kern_rel_offset = 0; 7414 7415 if (ext) { 7416 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7417 ctsio->kern_data_ptr; 7418 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7419 rtg_ext_ptr->format_type = 0x10; 7420 rtg_ext_ptr->implicit_transition_time = 0; 7421 tpg_desc = &rtg_ext_ptr->groups[0]; 7422 } else { 7423 rtg_ptr = (struct scsi_target_group_data *) 7424 ctsio->kern_data_ptr; 7425 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7426 tpg_desc = &rtg_ptr->groups[0]; 7427 } 7428 7429 mtx_lock(&softc->ctl_lock); 7430 pg = softc->port_offset / CTL_MAX_PORTS; 7431 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7432 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7433 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7434 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7435 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7436 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7437 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7438 } else { 7439 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7440 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7441 } 7442 } else { 7443 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7444 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7445 } 7446 for (g = 0; g < num_target_port_groups; g++) { 7447 tpg_desc->pref_state = (g == pg) ? gs : os; 7448 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7449 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7450 tpg_desc->status = TPG_IMPLICIT; 7451 pc = 0; 7452 STAILQ_FOREACH(port, &softc->port_list, links) { 7453 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7454 continue; 7455 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7456 CTL_MAX_LUNS) 7457 continue; 7458 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7459 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7460 relative_target_port_identifier); 7461 pc++; 7462 } 7463 tpg_desc->target_port_count = pc; 7464 tpg_desc = (struct scsi_target_port_group_descriptor *) 7465 &tpg_desc->descriptors[pc]; 7466 } 7467 mtx_unlock(&softc->ctl_lock); 7468 7469 ctl_set_success(ctsio); 7470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7471 ctsio->be_move_done = ctl_config_move_done; 7472 ctl_datamove((union ctl_io *)ctsio); 7473 return(retval); 7474} 7475 7476int 7477ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7478{ 7479 struct ctl_lun *lun; 7480 struct scsi_report_supported_opcodes *cdb; 7481 const struct ctl_cmd_entry *entry, *sentry; 7482 struct scsi_report_supported_opcodes_all *all; 7483 struct scsi_report_supported_opcodes_descr *descr; 7484 struct scsi_report_supported_opcodes_one *one; 7485 int retval; 7486 int alloc_len, total_len; 7487 int opcode, service_action, i, j, num; 7488 7489 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7490 7491 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7492 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7493 7494 retval = CTL_RETVAL_COMPLETE; 7495 7496 opcode = cdb->requested_opcode; 7497 service_action = scsi_2btoul(cdb->requested_service_action); 7498 switch (cdb->options & RSO_OPTIONS_MASK) { 7499 case RSO_OPTIONS_ALL: 7500 num = 0; 7501 for (i = 0; i < 256; i++) { 7502 entry = &ctl_cmd_table[i]; 7503 if (entry->flags & CTL_CMD_FLAG_SA5) { 7504 for (j = 0; j < 32; j++) { 7505 sentry = &((const struct ctl_cmd_entry *) 7506 entry->execute)[j]; 7507 if (ctl_cmd_applicable( 7508 lun->be_lun->lun_type, sentry)) 7509 num++; 7510 } 7511 } else { 7512 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7513 entry)) 7514 num++; 7515 } 7516 } 7517 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7518 num * sizeof(struct scsi_report_supported_opcodes_descr); 7519 break; 7520 case RSO_OPTIONS_OC: 7521 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7522 ctl_set_invalid_field(/*ctsio*/ ctsio, 7523 /*sks_valid*/ 1, 7524 /*command*/ 1, 7525 /*field*/ 2, 7526 /*bit_valid*/ 1, 7527 /*bit*/ 2); 7528 ctl_done((union ctl_io *)ctsio); 7529 return (CTL_RETVAL_COMPLETE); 7530 } 7531 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7532 break; 7533 case RSO_OPTIONS_OC_SA: 7534 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7535 service_action >= 32) { 7536 ctl_set_invalid_field(/*ctsio*/ ctsio, 7537 /*sks_valid*/ 1, 7538 /*command*/ 1, 7539 /*field*/ 2, 7540 /*bit_valid*/ 1, 7541 /*bit*/ 2); 7542 ctl_done((union ctl_io *)ctsio); 7543 return (CTL_RETVAL_COMPLETE); 7544 } 7545 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7546 break; 7547 default: 7548 ctl_set_invalid_field(/*ctsio*/ ctsio, 7549 /*sks_valid*/ 1, 7550 /*command*/ 1, 7551 /*field*/ 2, 7552 /*bit_valid*/ 1, 7553 /*bit*/ 2); 7554 ctl_done((union ctl_io *)ctsio); 7555 return (CTL_RETVAL_COMPLETE); 7556 } 7557 7558 alloc_len = scsi_4btoul(cdb->length); 7559 7560 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7561 7562 ctsio->kern_sg_entries = 0; 7563 7564 if (total_len < alloc_len) { 7565 ctsio->residual = alloc_len - total_len; 7566 ctsio->kern_data_len = total_len; 7567 ctsio->kern_total_len = total_len; 7568 } else { 7569 ctsio->residual = 0; 7570 ctsio->kern_data_len = alloc_len; 7571 ctsio->kern_total_len = alloc_len; 7572 } 7573 ctsio->kern_data_resid = 0; 7574 ctsio->kern_rel_offset = 0; 7575 7576 switch (cdb->options & RSO_OPTIONS_MASK) { 7577 case RSO_OPTIONS_ALL: 7578 all = (struct scsi_report_supported_opcodes_all *) 7579 ctsio->kern_data_ptr; 7580 num = 0; 7581 for (i = 0; i < 256; i++) { 7582 entry = &ctl_cmd_table[i]; 7583 if (entry->flags & CTL_CMD_FLAG_SA5) { 7584 for (j = 0; j < 32; j++) { 7585 sentry = &((const struct ctl_cmd_entry *) 7586 entry->execute)[j]; 7587 if (!ctl_cmd_applicable( 7588 lun->be_lun->lun_type, sentry)) 7589 continue; 7590 descr = &all->descr[num++]; 7591 descr->opcode = i; 7592 scsi_ulto2b(j, descr->service_action); 7593 descr->flags = RSO_SERVACTV; 7594 scsi_ulto2b(sentry->length, 7595 descr->cdb_length); 7596 } 7597 } else { 7598 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7599 entry)) 7600 continue; 7601 descr = &all->descr[num++]; 7602 descr->opcode = i; 7603 scsi_ulto2b(0, descr->service_action); 7604 descr->flags = 0; 7605 scsi_ulto2b(entry->length, descr->cdb_length); 7606 } 7607 } 7608 scsi_ulto4b( 7609 num * sizeof(struct scsi_report_supported_opcodes_descr), 7610 all->length); 7611 break; 7612 case RSO_OPTIONS_OC: 7613 one = (struct scsi_report_supported_opcodes_one *) 7614 ctsio->kern_data_ptr; 7615 entry = &ctl_cmd_table[opcode]; 7616 goto fill_one; 7617 case RSO_OPTIONS_OC_SA: 7618 one = (struct scsi_report_supported_opcodes_one *) 7619 ctsio->kern_data_ptr; 7620 entry = &ctl_cmd_table[opcode]; 7621 entry = &((const struct ctl_cmd_entry *) 7622 entry->execute)[service_action]; 7623fill_one: 7624 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7625 one->support = 3; 7626 scsi_ulto2b(entry->length, one->cdb_length); 7627 one->cdb_usage[0] = opcode; 7628 memcpy(&one->cdb_usage[1], entry->usage, 7629 entry->length - 1); 7630 } else 7631 one->support = 1; 7632 break; 7633 } 7634 7635 ctl_set_success(ctsio); 7636 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7637 ctsio->be_move_done = ctl_config_move_done; 7638 ctl_datamove((union ctl_io *)ctsio); 7639 return(retval); 7640} 7641 7642int 7643ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7644{ 7645 struct scsi_report_supported_tmf *cdb; 7646 struct scsi_report_supported_tmf_data *data; 7647 int retval; 7648 int alloc_len, total_len; 7649 7650 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7651 7652 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7653 7654 retval = CTL_RETVAL_COMPLETE; 7655 7656 total_len = sizeof(struct scsi_report_supported_tmf_data); 7657 alloc_len = scsi_4btoul(cdb->length); 7658 7659 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7660 7661 ctsio->kern_sg_entries = 0; 7662 7663 if (total_len < alloc_len) { 7664 ctsio->residual = alloc_len - total_len; 7665 ctsio->kern_data_len = total_len; 7666 ctsio->kern_total_len = total_len; 7667 } else { 7668 ctsio->residual = 0; 7669 ctsio->kern_data_len = alloc_len; 7670 ctsio->kern_total_len = alloc_len; 7671 } 7672 ctsio->kern_data_resid = 0; 7673 ctsio->kern_rel_offset = 0; 7674 7675 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7676 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7677 data->byte2 |= RST_ITNRS; 7678 7679 ctl_set_success(ctsio); 7680 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7681 ctsio->be_move_done = ctl_config_move_done; 7682 ctl_datamove((union ctl_io *)ctsio); 7683 return (retval); 7684} 7685 7686int 7687ctl_report_timestamp(struct ctl_scsiio *ctsio) 7688{ 7689 struct scsi_report_timestamp *cdb; 7690 struct scsi_report_timestamp_data *data; 7691 struct timeval tv; 7692 int64_t timestamp; 7693 int retval; 7694 int alloc_len, total_len; 7695 7696 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7697 7698 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7699 7700 retval = CTL_RETVAL_COMPLETE; 7701 7702 total_len = sizeof(struct scsi_report_timestamp_data); 7703 alloc_len = scsi_4btoul(cdb->length); 7704 7705 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7706 7707 ctsio->kern_sg_entries = 0; 7708 7709 if (total_len < alloc_len) { 7710 ctsio->residual = alloc_len - total_len; 7711 ctsio->kern_data_len = total_len; 7712 ctsio->kern_total_len = total_len; 7713 } else { 7714 ctsio->residual = 0; 7715 ctsio->kern_data_len = alloc_len; 7716 ctsio->kern_total_len = alloc_len; 7717 } 7718 ctsio->kern_data_resid = 0; 7719 ctsio->kern_rel_offset = 0; 7720 7721 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7722 scsi_ulto2b(sizeof(*data) - 2, data->length); 7723 data->origin = RTS_ORIG_OUTSIDE; 7724 getmicrotime(&tv); 7725 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7726 scsi_ulto4b(timestamp >> 16, data->timestamp); 7727 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7728 7729 ctl_set_success(ctsio); 7730 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7731 ctsio->be_move_done = ctl_config_move_done; 7732 ctl_datamove((union ctl_io *)ctsio); 7733 return (retval); 7734} 7735 7736int 7737ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7738{ 7739 struct scsi_per_res_in *cdb; 7740 int alloc_len, total_len = 0; 7741 /* struct scsi_per_res_in_rsrv in_data; */ 7742 struct ctl_lun *lun; 7743 struct ctl_softc *softc; 7744 uint64_t key; 7745 7746 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7747 7748 softc = control_softc; 7749 7750 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7751 7752 alloc_len = scsi_2btoul(cdb->length); 7753 7754 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7755 7756retry: 7757 mtx_lock(&lun->lun_lock); 7758 switch (cdb->action) { 7759 case SPRI_RK: /* read keys */ 7760 total_len = sizeof(struct scsi_per_res_in_keys) + 7761 lun->pr_key_count * 7762 sizeof(struct scsi_per_res_key); 7763 break; 7764 case SPRI_RR: /* read reservation */ 7765 if (lun->flags & CTL_LUN_PR_RESERVED) 7766 total_len = sizeof(struct scsi_per_res_in_rsrv); 7767 else 7768 total_len = sizeof(struct scsi_per_res_in_header); 7769 break; 7770 case SPRI_RC: /* report capabilities */ 7771 total_len = sizeof(struct scsi_per_res_cap); 7772 break; 7773 case SPRI_RS: /* read full status */ 7774 total_len = sizeof(struct scsi_per_res_in_header) + 7775 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7776 lun->pr_key_count; 7777 break; 7778 default: 7779 panic("Invalid PR type %x", cdb->action); 7780 } 7781 mtx_unlock(&lun->lun_lock); 7782 7783 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7784 7785 if (total_len < alloc_len) { 7786 ctsio->residual = alloc_len - total_len; 7787 ctsio->kern_data_len = total_len; 7788 ctsio->kern_total_len = total_len; 7789 } else { 7790 ctsio->residual = 0; 7791 ctsio->kern_data_len = alloc_len; 7792 ctsio->kern_total_len = alloc_len; 7793 } 7794 7795 ctsio->kern_data_resid = 0; 7796 ctsio->kern_rel_offset = 0; 7797 ctsio->kern_sg_entries = 0; 7798 7799 mtx_lock(&lun->lun_lock); 7800 switch (cdb->action) { 7801 case SPRI_RK: { // read keys 7802 struct scsi_per_res_in_keys *res_keys; 7803 int i, key_count; 7804 7805 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7806 7807 /* 7808 * We had to drop the lock to allocate our buffer, which 7809 * leaves time for someone to come in with another 7810 * persistent reservation. (That is unlikely, though, 7811 * since this should be the only persistent reservation 7812 * command active right now.) 7813 */ 7814 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7815 (lun->pr_key_count * 7816 sizeof(struct scsi_per_res_key)))){ 7817 mtx_unlock(&lun->lun_lock); 7818 free(ctsio->kern_data_ptr, M_CTL); 7819 printf("%s: reservation length changed, retrying\n", 7820 __func__); 7821 goto retry; 7822 } 7823 7824 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7825 7826 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7827 lun->pr_key_count, res_keys->header.length); 7828 7829 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7830 if ((key = ctl_get_prkey(lun, i)) == 0) 7831 continue; 7832 7833 /* 7834 * We used lun->pr_key_count to calculate the 7835 * size to allocate. If it turns out the number of 7836 * initiators with the registered flag set is 7837 * larger than that (i.e. they haven't been kept in 7838 * sync), we've got a problem. 7839 */ 7840 if (key_count >= lun->pr_key_count) { 7841#ifdef NEEDTOPORT 7842 csevent_log(CSC_CTL | CSC_SHELF_SW | 7843 CTL_PR_ERROR, 7844 csevent_LogType_Fault, 7845 csevent_AlertLevel_Yellow, 7846 csevent_FRU_ShelfController, 7847 csevent_FRU_Firmware, 7848 csevent_FRU_Unknown, 7849 "registered keys %d >= key " 7850 "count %d", key_count, 7851 lun->pr_key_count); 7852#endif 7853 key_count++; 7854 continue; 7855 } 7856 scsi_u64to8b(key, res_keys->keys[key_count].key); 7857 key_count++; 7858 } 7859 break; 7860 } 7861 case SPRI_RR: { // read reservation 7862 struct scsi_per_res_in_rsrv *res; 7863 int tmp_len, header_only; 7864 7865 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7866 7867 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7868 7869 if (lun->flags & CTL_LUN_PR_RESERVED) 7870 { 7871 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7872 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7873 res->header.length); 7874 header_only = 0; 7875 } else { 7876 tmp_len = sizeof(struct scsi_per_res_in_header); 7877 scsi_ulto4b(0, res->header.length); 7878 header_only = 1; 7879 } 7880 7881 /* 7882 * We had to drop the lock to allocate our buffer, which 7883 * leaves time for someone to come in with another 7884 * persistent reservation. (That is unlikely, though, 7885 * since this should be the only persistent reservation 7886 * command active right now.) 7887 */ 7888 if (tmp_len != total_len) { 7889 mtx_unlock(&lun->lun_lock); 7890 free(ctsio->kern_data_ptr, M_CTL); 7891 printf("%s: reservation status changed, retrying\n", 7892 __func__); 7893 goto retry; 7894 } 7895 7896 /* 7897 * No reservation held, so we're done. 7898 */ 7899 if (header_only != 0) 7900 break; 7901 7902 /* 7903 * If the registration is an All Registrants type, the key 7904 * is 0, since it doesn't really matter. 7905 */ 7906 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7907 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7908 res->data.reservation); 7909 } 7910 res->data.scopetype = lun->res_type; 7911 break; 7912 } 7913 case SPRI_RC: //report capabilities 7914 { 7915 struct scsi_per_res_cap *res_cap; 7916 uint16_t type_mask; 7917 7918 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7919 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7920 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7921 type_mask = SPRI_TM_WR_EX_AR | 7922 SPRI_TM_EX_AC_RO | 7923 SPRI_TM_WR_EX_RO | 7924 SPRI_TM_EX_AC | 7925 SPRI_TM_WR_EX | 7926 SPRI_TM_EX_AC_AR; 7927 scsi_ulto2b(type_mask, res_cap->type_mask); 7928 break; 7929 } 7930 case SPRI_RS: { // read full status 7931 struct scsi_per_res_in_full *res_status; 7932 struct scsi_per_res_in_full_desc *res_desc; 7933 struct ctl_port *port; 7934 int i, len; 7935 7936 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7937 7938 /* 7939 * We had to drop the lock to allocate our buffer, which 7940 * leaves time for someone to come in with another 7941 * persistent reservation. (That is unlikely, though, 7942 * since this should be the only persistent reservation 7943 * command active right now.) 7944 */ 7945 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7946 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7947 lun->pr_key_count)){ 7948 mtx_unlock(&lun->lun_lock); 7949 free(ctsio->kern_data_ptr, M_CTL); 7950 printf("%s: reservation length changed, retrying\n", 7951 __func__); 7952 goto retry; 7953 } 7954 7955 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7956 7957 res_desc = &res_status->desc[0]; 7958 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7959 if ((key = ctl_get_prkey(lun, i)) == 0) 7960 continue; 7961 7962 scsi_u64to8b(key, res_desc->res_key.key); 7963 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7964 (lun->pr_res_idx == i || 7965 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7966 res_desc->flags = SPRI_FULL_R_HOLDER; 7967 res_desc->scopetype = lun->res_type; 7968 } 7969 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7970 res_desc->rel_trgt_port_id); 7971 len = 0; 7972 port = softc->ctl_ports[ 7973 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7974 if (port != NULL) 7975 len = ctl_create_iid(port, 7976 i % CTL_MAX_INIT_PER_PORT, 7977 res_desc->transport_id); 7978 scsi_ulto4b(len, res_desc->additional_length); 7979 res_desc = (struct scsi_per_res_in_full_desc *) 7980 &res_desc->transport_id[len]; 7981 } 7982 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7983 res_status->header.length); 7984 break; 7985 } 7986 default: 7987 /* 7988 * This is a bug, because we just checked for this above, 7989 * and should have returned an error. 7990 */ 7991 panic("Invalid PR type %x", cdb->action); 7992 break; /* NOTREACHED */ 7993 } 7994 mtx_unlock(&lun->lun_lock); 7995 7996 ctl_set_success(ctsio); 7997 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7998 ctsio->be_move_done = ctl_config_move_done; 7999 ctl_datamove((union ctl_io *)ctsio); 8000 return (CTL_RETVAL_COMPLETE); 8001} 8002 8003static void 8004ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 8005{ 8006 int off = lun->ctl_softc->persis_offset; 8007 8008 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 8009 ctl_est_ua(lun, residx - off, ua); 8010} 8011 8012/* 8013 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8014 * it should return. 8015 */ 8016static int 8017ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8018 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8019 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8020 struct scsi_per_res_out_parms* param) 8021{ 8022 union ctl_ha_msg persis_io; 8023 int retval, i; 8024 int isc_retval; 8025 8026 retval = 0; 8027 8028 mtx_lock(&lun->lun_lock); 8029 if (sa_res_key == 0) { 8030 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8031 /* validate scope and type */ 8032 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8033 SPR_LU_SCOPE) { 8034 mtx_unlock(&lun->lun_lock); 8035 ctl_set_invalid_field(/*ctsio*/ ctsio, 8036 /*sks_valid*/ 1, 8037 /*command*/ 1, 8038 /*field*/ 2, 8039 /*bit_valid*/ 1, 8040 /*bit*/ 4); 8041 ctl_done((union ctl_io *)ctsio); 8042 return (1); 8043 } 8044 8045 if (type>8 || type==2 || type==4 || type==0) { 8046 mtx_unlock(&lun->lun_lock); 8047 ctl_set_invalid_field(/*ctsio*/ ctsio, 8048 /*sks_valid*/ 1, 8049 /*command*/ 1, 8050 /*field*/ 2, 8051 /*bit_valid*/ 1, 8052 /*bit*/ 0); 8053 ctl_done((union ctl_io *)ctsio); 8054 return (1); 8055 } 8056 8057 /* 8058 * Unregister everybody else and build UA for 8059 * them 8060 */ 8061 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8062 if (i == residx || ctl_get_prkey(lun, i) == 0) 8063 continue; 8064 8065 ctl_clr_prkey(lun, i); 8066 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8067 } 8068 lun->pr_key_count = 1; 8069 lun->res_type = type; 8070 if (lun->res_type != SPR_TYPE_WR_EX_AR 8071 && lun->res_type != SPR_TYPE_EX_AC_AR) 8072 lun->pr_res_idx = residx; 8073 8074 /* send msg to other side */ 8075 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8076 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8077 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8078 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8079 persis_io.pr.pr_info.res_type = type; 8080 memcpy(persis_io.pr.pr_info.sa_res_key, 8081 param->serv_act_res_key, 8082 sizeof(param->serv_act_res_key)); 8083 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8084 &persis_io, sizeof(persis_io), 0)) > 8085 CTL_HA_STATUS_SUCCESS) { 8086 printf("CTL:Persis Out error returned " 8087 "from ctl_ha_msg_send %d\n", 8088 isc_retval); 8089 } 8090 } else { 8091 /* not all registrants */ 8092 mtx_unlock(&lun->lun_lock); 8093 free(ctsio->kern_data_ptr, M_CTL); 8094 ctl_set_invalid_field(ctsio, 8095 /*sks_valid*/ 1, 8096 /*command*/ 0, 8097 /*field*/ 8, 8098 /*bit_valid*/ 0, 8099 /*bit*/ 0); 8100 ctl_done((union ctl_io *)ctsio); 8101 return (1); 8102 } 8103 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8104 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8105 int found = 0; 8106 8107 if (res_key == sa_res_key) { 8108 /* special case */ 8109 /* 8110 * The spec implies this is not good but doesn't 8111 * say what to do. There are two choices either 8112 * generate a res conflict or check condition 8113 * with illegal field in parameter data. Since 8114 * that is what is done when the sa_res_key is 8115 * zero I'll take that approach since this has 8116 * to do with the sa_res_key. 8117 */ 8118 mtx_unlock(&lun->lun_lock); 8119 free(ctsio->kern_data_ptr, M_CTL); 8120 ctl_set_invalid_field(ctsio, 8121 /*sks_valid*/ 1, 8122 /*command*/ 0, 8123 /*field*/ 8, 8124 /*bit_valid*/ 0, 8125 /*bit*/ 0); 8126 ctl_done((union ctl_io *)ctsio); 8127 return (1); 8128 } 8129 8130 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8131 if (ctl_get_prkey(lun, i) != sa_res_key) 8132 continue; 8133 8134 found = 1; 8135 ctl_clr_prkey(lun, i); 8136 lun->pr_key_count--; 8137 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8138 } 8139 if (!found) { 8140 mtx_unlock(&lun->lun_lock); 8141 free(ctsio->kern_data_ptr, M_CTL); 8142 ctl_set_reservation_conflict(ctsio); 8143 ctl_done((union ctl_io *)ctsio); 8144 return (CTL_RETVAL_COMPLETE); 8145 } 8146 /* send msg to other side */ 8147 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8148 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8149 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8150 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8151 persis_io.pr.pr_info.res_type = type; 8152 memcpy(persis_io.pr.pr_info.sa_res_key, 8153 param->serv_act_res_key, 8154 sizeof(param->serv_act_res_key)); 8155 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8156 &persis_io, sizeof(persis_io), 0)) > 8157 CTL_HA_STATUS_SUCCESS) { 8158 printf("CTL:Persis Out error returned from " 8159 "ctl_ha_msg_send %d\n", isc_retval); 8160 } 8161 } else { 8162 /* Reserved but not all registrants */ 8163 /* sa_res_key is res holder */ 8164 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8165 /* validate scope and type */ 8166 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8167 SPR_LU_SCOPE) { 8168 mtx_unlock(&lun->lun_lock); 8169 ctl_set_invalid_field(/*ctsio*/ ctsio, 8170 /*sks_valid*/ 1, 8171 /*command*/ 1, 8172 /*field*/ 2, 8173 /*bit_valid*/ 1, 8174 /*bit*/ 4); 8175 ctl_done((union ctl_io *)ctsio); 8176 return (1); 8177 } 8178 8179 if (type>8 || type==2 || type==4 || type==0) { 8180 mtx_unlock(&lun->lun_lock); 8181 ctl_set_invalid_field(/*ctsio*/ ctsio, 8182 /*sks_valid*/ 1, 8183 /*command*/ 1, 8184 /*field*/ 2, 8185 /*bit_valid*/ 1, 8186 /*bit*/ 0); 8187 ctl_done((union ctl_io *)ctsio); 8188 return (1); 8189 } 8190 8191 /* 8192 * Do the following: 8193 * if sa_res_key != res_key remove all 8194 * registrants w/sa_res_key and generate UA 8195 * for these registrants(Registrations 8196 * Preempted) if it wasn't an exclusive 8197 * reservation generate UA(Reservations 8198 * Preempted) for all other registered nexuses 8199 * if the type has changed. Establish the new 8200 * reservation and holder. If res_key and 8201 * sa_res_key are the same do the above 8202 * except don't unregister the res holder. 8203 */ 8204 8205 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (i == residx || ctl_get_prkey(lun, i) == 0) 8207 continue; 8208 8209 if (sa_res_key == ctl_get_prkey(lun, i)) { 8210 ctl_clr_prkey(lun, i); 8211 lun->pr_key_count--; 8212 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8213 } else if (type != lun->res_type 8214 && (lun->res_type == SPR_TYPE_WR_EX_RO 8215 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8216 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8217 } 8218 } 8219 lun->res_type = type; 8220 if (lun->res_type != SPR_TYPE_WR_EX_AR 8221 && lun->res_type != SPR_TYPE_EX_AC_AR) 8222 lun->pr_res_idx = residx; 8223 else 8224 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8225 8226 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8227 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8228 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8229 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8230 persis_io.pr.pr_info.res_type = type; 8231 memcpy(persis_io.pr.pr_info.sa_res_key, 8232 param->serv_act_res_key, 8233 sizeof(param->serv_act_res_key)); 8234 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8235 &persis_io, sizeof(persis_io), 0)) > 8236 CTL_HA_STATUS_SUCCESS) { 8237 printf("CTL:Persis Out error returned " 8238 "from ctl_ha_msg_send %d\n", 8239 isc_retval); 8240 } 8241 } else { 8242 /* 8243 * sa_res_key is not the res holder just 8244 * remove registrants 8245 */ 8246 int found=0; 8247 8248 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8249 if (sa_res_key != ctl_get_prkey(lun, i)) 8250 continue; 8251 8252 found = 1; 8253 ctl_clr_prkey(lun, i); 8254 lun->pr_key_count--; 8255 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8256 } 8257 8258 if (!found) { 8259 mtx_unlock(&lun->lun_lock); 8260 free(ctsio->kern_data_ptr, M_CTL); 8261 ctl_set_reservation_conflict(ctsio); 8262 ctl_done((union ctl_io *)ctsio); 8263 return (1); 8264 } 8265 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8266 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8267 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8268 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8269 persis_io.pr.pr_info.res_type = type; 8270 memcpy(persis_io.pr.pr_info.sa_res_key, 8271 param->serv_act_res_key, 8272 sizeof(param->serv_act_res_key)); 8273 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8274 &persis_io, sizeof(persis_io), 0)) > 8275 CTL_HA_STATUS_SUCCESS) { 8276 printf("CTL:Persis Out error returned " 8277 "from ctl_ha_msg_send %d\n", 8278 isc_retval); 8279 } 8280 } 8281 } 8282 8283 lun->PRGeneration++; 8284 mtx_unlock(&lun->lun_lock); 8285 8286 return (retval); 8287} 8288 8289static void 8290ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8291{ 8292 uint64_t sa_res_key; 8293 int i; 8294 8295 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8296 8297 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8298 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8299 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8300 if (sa_res_key == 0) { 8301 /* 8302 * Unregister everybody else and build UA for 8303 * them 8304 */ 8305 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8306 if (i == msg->pr.pr_info.residx || 8307 ctl_get_prkey(lun, i) == 0) 8308 continue; 8309 8310 ctl_clr_prkey(lun, i); 8311 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8312 } 8313 8314 lun->pr_key_count = 1; 8315 lun->res_type = msg->pr.pr_info.res_type; 8316 if (lun->res_type != SPR_TYPE_WR_EX_AR 8317 && lun->res_type != SPR_TYPE_EX_AC_AR) 8318 lun->pr_res_idx = msg->pr.pr_info.residx; 8319 } else { 8320 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8321 if (sa_res_key == ctl_get_prkey(lun, i)) 8322 continue; 8323 8324 ctl_clr_prkey(lun, i); 8325 lun->pr_key_count--; 8326 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8327 } 8328 } 8329 } else { 8330 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8331 if (i == msg->pr.pr_info.residx || 8332 ctl_get_prkey(lun, i) == 0) 8333 continue; 8334 8335 if (sa_res_key == ctl_get_prkey(lun, i)) { 8336 ctl_clr_prkey(lun, i); 8337 lun->pr_key_count--; 8338 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8339 } else if (msg->pr.pr_info.res_type != lun->res_type 8340 && (lun->res_type == SPR_TYPE_WR_EX_RO 8341 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8342 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8343 } 8344 } 8345 lun->res_type = msg->pr.pr_info.res_type; 8346 if (lun->res_type != SPR_TYPE_WR_EX_AR 8347 && lun->res_type != SPR_TYPE_EX_AC_AR) 8348 lun->pr_res_idx = msg->pr.pr_info.residx; 8349 else 8350 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8351 } 8352 lun->PRGeneration++; 8353 8354} 8355 8356 8357int 8358ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8359{ 8360 int retval; 8361 int isc_retval; 8362 u_int32_t param_len; 8363 struct scsi_per_res_out *cdb; 8364 struct ctl_lun *lun; 8365 struct scsi_per_res_out_parms* param; 8366 struct ctl_softc *softc; 8367 uint32_t residx; 8368 uint64_t res_key, sa_res_key, key; 8369 uint8_t type; 8370 union ctl_ha_msg persis_io; 8371 int i; 8372 8373 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8374 8375 retval = CTL_RETVAL_COMPLETE; 8376 8377 softc = control_softc; 8378 8379 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8380 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8381 8382 /* 8383 * We only support whole-LUN scope. The scope & type are ignored for 8384 * register, register and ignore existing key and clear. 8385 * We sometimes ignore scope and type on preempts too!! 8386 * Verify reservation type here as well. 8387 */ 8388 type = cdb->scope_type & SPR_TYPE_MASK; 8389 if ((cdb->action == SPRO_RESERVE) 8390 || (cdb->action == SPRO_RELEASE)) { 8391 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8392 ctl_set_invalid_field(/*ctsio*/ ctsio, 8393 /*sks_valid*/ 1, 8394 /*command*/ 1, 8395 /*field*/ 2, 8396 /*bit_valid*/ 1, 8397 /*bit*/ 4); 8398 ctl_done((union ctl_io *)ctsio); 8399 return (CTL_RETVAL_COMPLETE); 8400 } 8401 8402 if (type>8 || type==2 || type==4 || type==0) { 8403 ctl_set_invalid_field(/*ctsio*/ ctsio, 8404 /*sks_valid*/ 1, 8405 /*command*/ 1, 8406 /*field*/ 2, 8407 /*bit_valid*/ 1, 8408 /*bit*/ 0); 8409 ctl_done((union ctl_io *)ctsio); 8410 return (CTL_RETVAL_COMPLETE); 8411 } 8412 } 8413 8414 param_len = scsi_4btoul(cdb->length); 8415 8416 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8417 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8418 ctsio->kern_data_len = param_len; 8419 ctsio->kern_total_len = param_len; 8420 ctsio->kern_data_resid = 0; 8421 ctsio->kern_rel_offset = 0; 8422 ctsio->kern_sg_entries = 0; 8423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8424 ctsio->be_move_done = ctl_config_move_done; 8425 ctl_datamove((union ctl_io *)ctsio); 8426 8427 return (CTL_RETVAL_COMPLETE); 8428 } 8429 8430 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8431 8432 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8433 res_key = scsi_8btou64(param->res_key.key); 8434 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8435 8436 /* 8437 * Validate the reservation key here except for SPRO_REG_IGNO 8438 * This must be done for all other service actions 8439 */ 8440 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8441 mtx_lock(&lun->lun_lock); 8442 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8443 if (res_key != key) { 8444 /* 8445 * The current key passed in doesn't match 8446 * the one the initiator previously 8447 * registered. 8448 */ 8449 mtx_unlock(&lun->lun_lock); 8450 free(ctsio->kern_data_ptr, M_CTL); 8451 ctl_set_reservation_conflict(ctsio); 8452 ctl_done((union ctl_io *)ctsio); 8453 return (CTL_RETVAL_COMPLETE); 8454 } 8455 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8456 /* 8457 * We are not registered 8458 */ 8459 mtx_unlock(&lun->lun_lock); 8460 free(ctsio->kern_data_ptr, M_CTL); 8461 ctl_set_reservation_conflict(ctsio); 8462 ctl_done((union ctl_io *)ctsio); 8463 return (CTL_RETVAL_COMPLETE); 8464 } else if (res_key != 0) { 8465 /* 8466 * We are not registered and trying to register but 8467 * the register key isn't zero. 8468 */ 8469 mtx_unlock(&lun->lun_lock); 8470 free(ctsio->kern_data_ptr, M_CTL); 8471 ctl_set_reservation_conflict(ctsio); 8472 ctl_done((union ctl_io *)ctsio); 8473 return (CTL_RETVAL_COMPLETE); 8474 } 8475 mtx_unlock(&lun->lun_lock); 8476 } 8477 8478 switch (cdb->action & SPRO_ACTION_MASK) { 8479 case SPRO_REGISTER: 8480 case SPRO_REG_IGNO: { 8481 8482#if 0 8483 printf("Registration received\n"); 8484#endif 8485 8486 /* 8487 * We don't support any of these options, as we report in 8488 * the read capabilities request (see 8489 * ctl_persistent_reserve_in(), above). 8490 */ 8491 if ((param->flags & SPR_SPEC_I_PT) 8492 || (param->flags & SPR_ALL_TG_PT) 8493 || (param->flags & SPR_APTPL)) { 8494 int bit_ptr; 8495 8496 if (param->flags & SPR_APTPL) 8497 bit_ptr = 0; 8498 else if (param->flags & SPR_ALL_TG_PT) 8499 bit_ptr = 2; 8500 else /* SPR_SPEC_I_PT */ 8501 bit_ptr = 3; 8502 8503 free(ctsio->kern_data_ptr, M_CTL); 8504 ctl_set_invalid_field(ctsio, 8505 /*sks_valid*/ 1, 8506 /*command*/ 0, 8507 /*field*/ 20, 8508 /*bit_valid*/ 1, 8509 /*bit*/ bit_ptr); 8510 ctl_done((union ctl_io *)ctsio); 8511 return (CTL_RETVAL_COMPLETE); 8512 } 8513 8514 mtx_lock(&lun->lun_lock); 8515 8516 /* 8517 * The initiator wants to clear the 8518 * key/unregister. 8519 */ 8520 if (sa_res_key == 0) { 8521 if ((res_key == 0 8522 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8523 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8524 && ctl_get_prkey(lun, residx) == 0)) { 8525 mtx_unlock(&lun->lun_lock); 8526 goto done; 8527 } 8528 8529 ctl_clr_prkey(lun, residx); 8530 lun->pr_key_count--; 8531 8532 if (residx == lun->pr_res_idx) { 8533 lun->flags &= ~CTL_LUN_PR_RESERVED; 8534 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8535 8536 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8537 || lun->res_type == SPR_TYPE_EX_AC_RO) 8538 && lun->pr_key_count) { 8539 /* 8540 * If the reservation is a registrants 8541 * only type we need to generate a UA 8542 * for other registered inits. The 8543 * sense code should be RESERVATIONS 8544 * RELEASED 8545 */ 8546 8547 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8548 if (ctl_get_prkey(lun, i + 8549 softc->persis_offset) == 0) 8550 continue; 8551 ctl_est_ua(lun, i, 8552 CTL_UA_RES_RELEASE); 8553 } 8554 } 8555 lun->res_type = 0; 8556 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8557 if (lun->pr_key_count==0) { 8558 lun->flags &= ~CTL_LUN_PR_RESERVED; 8559 lun->res_type = 0; 8560 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8561 } 8562 } 8563 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8564 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8565 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8566 persis_io.pr.pr_info.residx = residx; 8567 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8568 &persis_io, sizeof(persis_io), 0 )) > 8569 CTL_HA_STATUS_SUCCESS) { 8570 printf("CTL:Persis Out error returned from " 8571 "ctl_ha_msg_send %d\n", isc_retval); 8572 } 8573 } else /* sa_res_key != 0 */ { 8574 8575 /* 8576 * If we aren't registered currently then increment 8577 * the key count and set the registered flag. 8578 */ 8579 ctl_alloc_prkey(lun, residx); 8580 if (ctl_get_prkey(lun, residx) == 0) 8581 lun->pr_key_count++; 8582 ctl_set_prkey(lun, residx, sa_res_key); 8583 8584 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8585 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8586 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8587 persis_io.pr.pr_info.residx = residx; 8588 memcpy(persis_io.pr.pr_info.sa_res_key, 8589 param->serv_act_res_key, 8590 sizeof(param->serv_act_res_key)); 8591 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8592 &persis_io, sizeof(persis_io), 0)) > 8593 CTL_HA_STATUS_SUCCESS) { 8594 printf("CTL:Persis Out error returned from " 8595 "ctl_ha_msg_send %d\n", isc_retval); 8596 } 8597 } 8598 lun->PRGeneration++; 8599 mtx_unlock(&lun->lun_lock); 8600 8601 break; 8602 } 8603 case SPRO_RESERVE: 8604#if 0 8605 printf("Reserve executed type %d\n", type); 8606#endif 8607 mtx_lock(&lun->lun_lock); 8608 if (lun->flags & CTL_LUN_PR_RESERVED) { 8609 /* 8610 * if this isn't the reservation holder and it's 8611 * not a "all registrants" type or if the type is 8612 * different then we have a conflict 8613 */ 8614 if ((lun->pr_res_idx != residx 8615 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8616 || lun->res_type != type) { 8617 mtx_unlock(&lun->lun_lock); 8618 free(ctsio->kern_data_ptr, M_CTL); 8619 ctl_set_reservation_conflict(ctsio); 8620 ctl_done((union ctl_io *)ctsio); 8621 return (CTL_RETVAL_COMPLETE); 8622 } 8623 mtx_unlock(&lun->lun_lock); 8624 } else /* create a reservation */ { 8625 /* 8626 * If it's not an "all registrants" type record 8627 * reservation holder 8628 */ 8629 if (type != SPR_TYPE_WR_EX_AR 8630 && type != SPR_TYPE_EX_AC_AR) 8631 lun->pr_res_idx = residx; /* Res holder */ 8632 else 8633 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8634 8635 lun->flags |= CTL_LUN_PR_RESERVED; 8636 lun->res_type = type; 8637 8638 mtx_unlock(&lun->lun_lock); 8639 8640 /* send msg to other side */ 8641 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8642 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8643 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8644 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8645 persis_io.pr.pr_info.res_type = type; 8646 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8647 &persis_io, sizeof(persis_io), 0)) > 8648 CTL_HA_STATUS_SUCCESS) { 8649 printf("CTL:Persis Out error returned from " 8650 "ctl_ha_msg_send %d\n", isc_retval); 8651 } 8652 } 8653 break; 8654 8655 case SPRO_RELEASE: 8656 mtx_lock(&lun->lun_lock); 8657 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8658 /* No reservation exists return good status */ 8659 mtx_unlock(&lun->lun_lock); 8660 goto done; 8661 } 8662 /* 8663 * Is this nexus a reservation holder? 8664 */ 8665 if (lun->pr_res_idx != residx 8666 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8667 /* 8668 * not a res holder return good status but 8669 * do nothing 8670 */ 8671 mtx_unlock(&lun->lun_lock); 8672 goto done; 8673 } 8674 8675 if (lun->res_type != type) { 8676 mtx_unlock(&lun->lun_lock); 8677 free(ctsio->kern_data_ptr, M_CTL); 8678 ctl_set_illegal_pr_release(ctsio); 8679 ctl_done((union ctl_io *)ctsio); 8680 return (CTL_RETVAL_COMPLETE); 8681 } 8682 8683 /* okay to release */ 8684 lun->flags &= ~CTL_LUN_PR_RESERVED; 8685 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8686 lun->res_type = 0; 8687 8688 /* 8689 * if this isn't an exclusive access 8690 * res generate UA for all other 8691 * registrants. 8692 */ 8693 if (type != SPR_TYPE_EX_AC 8694 && type != SPR_TYPE_WR_EX) { 8695 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8696 if (i == residx || 8697 ctl_get_prkey(lun, 8698 i + softc->persis_offset) == 0) 8699 continue; 8700 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8701 } 8702 } 8703 mtx_unlock(&lun->lun_lock); 8704 /* Send msg to other side */ 8705 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8706 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8707 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8708 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8709 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8710 printf("CTL:Persis Out error returned from " 8711 "ctl_ha_msg_send %d\n", isc_retval); 8712 } 8713 break; 8714 8715 case SPRO_CLEAR: 8716 /* send msg to other side */ 8717 8718 mtx_lock(&lun->lun_lock); 8719 lun->flags &= ~CTL_LUN_PR_RESERVED; 8720 lun->res_type = 0; 8721 lun->pr_key_count = 0; 8722 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8723 8724 ctl_clr_prkey(lun, residx); 8725 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8726 if (ctl_get_prkey(lun, i) != 0) { 8727 ctl_clr_prkey(lun, i); 8728 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8729 } 8730 lun->PRGeneration++; 8731 mtx_unlock(&lun->lun_lock); 8732 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8733 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8734 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8735 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8736 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8737 printf("CTL:Persis Out error returned from " 8738 "ctl_ha_msg_send %d\n", isc_retval); 8739 } 8740 break; 8741 8742 case SPRO_PREEMPT: 8743 case SPRO_PRE_ABO: { 8744 int nretval; 8745 8746 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8747 residx, ctsio, cdb, param); 8748 if (nretval != 0) 8749 return (CTL_RETVAL_COMPLETE); 8750 break; 8751 } 8752 default: 8753 panic("Invalid PR type %x", cdb->action); 8754 } 8755 8756done: 8757 free(ctsio->kern_data_ptr, M_CTL); 8758 ctl_set_success(ctsio); 8759 ctl_done((union ctl_io *)ctsio); 8760 8761 return (retval); 8762} 8763 8764/* 8765 * This routine is for handling a message from the other SC pertaining to 8766 * persistent reserve out. All the error checking will have been done 8767 * so only perorming the action need be done here to keep the two 8768 * in sync. 8769 */ 8770static void 8771ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8772{ 8773 struct ctl_lun *lun; 8774 struct ctl_softc *softc; 8775 int i; 8776 uint32_t targ_lun; 8777 8778 softc = control_softc; 8779 8780 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8781 lun = softc->ctl_luns[targ_lun]; 8782 mtx_lock(&lun->lun_lock); 8783 switch(msg->pr.pr_info.action) { 8784 case CTL_PR_REG_KEY: 8785 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8786 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8787 lun->pr_key_count++; 8788 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8789 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8790 lun->PRGeneration++; 8791 break; 8792 8793 case CTL_PR_UNREG_KEY: 8794 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8795 lun->pr_key_count--; 8796 8797 /* XXX Need to see if the reservation has been released */ 8798 /* if so do we need to generate UA? */ 8799 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8800 lun->flags &= ~CTL_LUN_PR_RESERVED; 8801 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8802 8803 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8804 || lun->res_type == SPR_TYPE_EX_AC_RO) 8805 && lun->pr_key_count) { 8806 /* 8807 * If the reservation is a registrants 8808 * only type we need to generate a UA 8809 * for other registered inits. The 8810 * sense code should be RESERVATIONS 8811 * RELEASED 8812 */ 8813 8814 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8815 if (ctl_get_prkey(lun, i + 8816 softc->persis_offset) == 0) 8817 continue; 8818 8819 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8820 } 8821 } 8822 lun->res_type = 0; 8823 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8824 if (lun->pr_key_count==0) { 8825 lun->flags &= ~CTL_LUN_PR_RESERVED; 8826 lun->res_type = 0; 8827 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8828 } 8829 } 8830 lun->PRGeneration++; 8831 break; 8832 8833 case CTL_PR_RESERVE: 8834 lun->flags |= CTL_LUN_PR_RESERVED; 8835 lun->res_type = msg->pr.pr_info.res_type; 8836 lun->pr_res_idx = msg->pr.pr_info.residx; 8837 8838 break; 8839 8840 case CTL_PR_RELEASE: 8841 /* 8842 * if this isn't an exclusive access res generate UA for all 8843 * other registrants. 8844 */ 8845 if (lun->res_type != SPR_TYPE_EX_AC 8846 && lun->res_type != SPR_TYPE_WR_EX) { 8847 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8848 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8849 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8850 } 8851 8852 lun->flags &= ~CTL_LUN_PR_RESERVED; 8853 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8854 lun->res_type = 0; 8855 break; 8856 8857 case CTL_PR_PREEMPT: 8858 ctl_pro_preempt_other(lun, msg); 8859 break; 8860 case CTL_PR_CLEAR: 8861 lun->flags &= ~CTL_LUN_PR_RESERVED; 8862 lun->res_type = 0; 8863 lun->pr_key_count = 0; 8864 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8865 8866 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8867 if (ctl_get_prkey(lun, i) == 0) 8868 continue; 8869 ctl_clr_prkey(lun, i); 8870 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8871 } 8872 lun->PRGeneration++; 8873 break; 8874 } 8875 8876 mtx_unlock(&lun->lun_lock); 8877} 8878 8879int 8880ctl_read_write(struct ctl_scsiio *ctsio) 8881{ 8882 struct ctl_lun *lun; 8883 struct ctl_lba_len_flags *lbalen; 8884 uint64_t lba; 8885 uint32_t num_blocks; 8886 int flags, retval; 8887 int isread; 8888 8889 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8890 8891 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8892 8893 flags = 0; 8894 retval = CTL_RETVAL_COMPLETE; 8895 8896 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8897 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8898 switch (ctsio->cdb[0]) { 8899 case READ_6: 8900 case WRITE_6: { 8901 struct scsi_rw_6 *cdb; 8902 8903 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8904 8905 lba = scsi_3btoul(cdb->addr); 8906 /* only 5 bits are valid in the most significant address byte */ 8907 lba &= 0x1fffff; 8908 num_blocks = cdb->length; 8909 /* 8910 * This is correct according to SBC-2. 8911 */ 8912 if (num_blocks == 0) 8913 num_blocks = 256; 8914 break; 8915 } 8916 case READ_10: 8917 case WRITE_10: { 8918 struct scsi_rw_10 *cdb; 8919 8920 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8921 if (cdb->byte2 & SRW10_FUA) 8922 flags |= CTL_LLF_FUA; 8923 if (cdb->byte2 & SRW10_DPO) 8924 flags |= CTL_LLF_DPO; 8925 lba = scsi_4btoul(cdb->addr); 8926 num_blocks = scsi_2btoul(cdb->length); 8927 break; 8928 } 8929 case WRITE_VERIFY_10: { 8930 struct scsi_write_verify_10 *cdb; 8931 8932 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8933 flags |= CTL_LLF_FUA; 8934 if (cdb->byte2 & SWV_DPO) 8935 flags |= CTL_LLF_DPO; 8936 lba = scsi_4btoul(cdb->addr); 8937 num_blocks = scsi_2btoul(cdb->length); 8938 break; 8939 } 8940 case READ_12: 8941 case WRITE_12: { 8942 struct scsi_rw_12 *cdb; 8943 8944 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8945 if (cdb->byte2 & SRW12_FUA) 8946 flags |= CTL_LLF_FUA; 8947 if (cdb->byte2 & SRW12_DPO) 8948 flags |= CTL_LLF_DPO; 8949 lba = scsi_4btoul(cdb->addr); 8950 num_blocks = scsi_4btoul(cdb->length); 8951 break; 8952 } 8953 case WRITE_VERIFY_12: { 8954 struct scsi_write_verify_12 *cdb; 8955 8956 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8957 flags |= CTL_LLF_FUA; 8958 if (cdb->byte2 & SWV_DPO) 8959 flags |= CTL_LLF_DPO; 8960 lba = scsi_4btoul(cdb->addr); 8961 num_blocks = scsi_4btoul(cdb->length); 8962 break; 8963 } 8964 case READ_16: 8965 case WRITE_16: { 8966 struct scsi_rw_16 *cdb; 8967 8968 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8969 if (cdb->byte2 & SRW12_FUA) 8970 flags |= CTL_LLF_FUA; 8971 if (cdb->byte2 & SRW12_DPO) 8972 flags |= CTL_LLF_DPO; 8973 lba = scsi_8btou64(cdb->addr); 8974 num_blocks = scsi_4btoul(cdb->length); 8975 break; 8976 } 8977 case WRITE_ATOMIC_16: { 8978 struct scsi_rw_16 *cdb; 8979 8980 if (lun->be_lun->atomicblock == 0) { 8981 ctl_set_invalid_opcode(ctsio); 8982 ctl_done((union ctl_io *)ctsio); 8983 return (CTL_RETVAL_COMPLETE); 8984 } 8985 8986 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8987 if (cdb->byte2 & SRW12_FUA) 8988 flags |= CTL_LLF_FUA; 8989 if (cdb->byte2 & SRW12_DPO) 8990 flags |= CTL_LLF_DPO; 8991 lba = scsi_8btou64(cdb->addr); 8992 num_blocks = scsi_4btoul(cdb->length); 8993 if (num_blocks > lun->be_lun->atomicblock) { 8994 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8995 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8996 /*bit*/ 0); 8997 ctl_done((union ctl_io *)ctsio); 8998 return (CTL_RETVAL_COMPLETE); 8999 } 9000 break; 9001 } 9002 case WRITE_VERIFY_16: { 9003 struct scsi_write_verify_16 *cdb; 9004 9005 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9006 flags |= CTL_LLF_FUA; 9007 if (cdb->byte2 & SWV_DPO) 9008 flags |= CTL_LLF_DPO; 9009 lba = scsi_8btou64(cdb->addr); 9010 num_blocks = scsi_4btoul(cdb->length); 9011 break; 9012 } 9013 default: 9014 /* 9015 * We got a command we don't support. This shouldn't 9016 * happen, commands should be filtered out above us. 9017 */ 9018 ctl_set_invalid_opcode(ctsio); 9019 ctl_done((union ctl_io *)ctsio); 9020 9021 return (CTL_RETVAL_COMPLETE); 9022 break; /* NOTREACHED */ 9023 } 9024 9025 /* 9026 * The first check is to make sure we're in bounds, the second 9027 * check is to catch wrap-around problems. If the lba + num blocks 9028 * is less than the lba, then we've wrapped around and the block 9029 * range is invalid anyway. 9030 */ 9031 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9032 || ((lba + num_blocks) < lba)) { 9033 ctl_set_lba_out_of_range(ctsio); 9034 ctl_done((union ctl_io *)ctsio); 9035 return (CTL_RETVAL_COMPLETE); 9036 } 9037 9038 /* 9039 * According to SBC-3, a transfer length of 0 is not an error. 9040 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9041 * translates to 256 blocks for those commands. 9042 */ 9043 if (num_blocks == 0) { 9044 ctl_set_success(ctsio); 9045 ctl_done((union ctl_io *)ctsio); 9046 return (CTL_RETVAL_COMPLETE); 9047 } 9048 9049 /* Set FUA and/or DPO if caches are disabled. */ 9050 if (isread) { 9051 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9052 SCP_RCD) != 0) 9053 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9054 } else { 9055 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9056 SCP_WCE) == 0) 9057 flags |= CTL_LLF_FUA; 9058 } 9059 9060 lbalen = (struct ctl_lba_len_flags *) 9061 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9062 lbalen->lba = lba; 9063 lbalen->len = num_blocks; 9064 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9065 9066 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9067 ctsio->kern_rel_offset = 0; 9068 9069 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9070 9071 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9072 9073 return (retval); 9074} 9075 9076static int 9077ctl_cnw_cont(union ctl_io *io) 9078{ 9079 struct ctl_scsiio *ctsio; 9080 struct ctl_lun *lun; 9081 struct ctl_lba_len_flags *lbalen; 9082 int retval; 9083 9084 ctsio = &io->scsiio; 9085 ctsio->io_hdr.status = CTL_STATUS_NONE; 9086 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9087 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9088 lbalen = (struct ctl_lba_len_flags *) 9089 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9090 lbalen->flags &= ~CTL_LLF_COMPARE; 9091 lbalen->flags |= CTL_LLF_WRITE; 9092 9093 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9094 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9095 return (retval); 9096} 9097 9098int 9099ctl_cnw(struct ctl_scsiio *ctsio) 9100{ 9101 struct ctl_lun *lun; 9102 struct ctl_lba_len_flags *lbalen; 9103 uint64_t lba; 9104 uint32_t num_blocks; 9105 int flags, retval; 9106 9107 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9108 9109 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9110 9111 flags = 0; 9112 retval = CTL_RETVAL_COMPLETE; 9113 9114 switch (ctsio->cdb[0]) { 9115 case COMPARE_AND_WRITE: { 9116 struct scsi_compare_and_write *cdb; 9117 9118 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9119 if (cdb->byte2 & SRW10_FUA) 9120 flags |= CTL_LLF_FUA; 9121 if (cdb->byte2 & SRW10_DPO) 9122 flags |= CTL_LLF_DPO; 9123 lba = scsi_8btou64(cdb->addr); 9124 num_blocks = cdb->length; 9125 break; 9126 } 9127 default: 9128 /* 9129 * We got a command we don't support. This shouldn't 9130 * happen, commands should be filtered out above us. 9131 */ 9132 ctl_set_invalid_opcode(ctsio); 9133 ctl_done((union ctl_io *)ctsio); 9134 9135 return (CTL_RETVAL_COMPLETE); 9136 break; /* NOTREACHED */ 9137 } 9138 9139 /* 9140 * The first check is to make sure we're in bounds, the second 9141 * check is to catch wrap-around problems. If the lba + num blocks 9142 * is less than the lba, then we've wrapped around and the block 9143 * range is invalid anyway. 9144 */ 9145 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9146 || ((lba + num_blocks) < lba)) { 9147 ctl_set_lba_out_of_range(ctsio); 9148 ctl_done((union ctl_io *)ctsio); 9149 return (CTL_RETVAL_COMPLETE); 9150 } 9151 9152 /* 9153 * According to SBC-3, a transfer length of 0 is not an error. 9154 */ 9155 if (num_blocks == 0) { 9156 ctl_set_success(ctsio); 9157 ctl_done((union ctl_io *)ctsio); 9158 return (CTL_RETVAL_COMPLETE); 9159 } 9160 9161 /* Set FUA if write cache is disabled. */ 9162 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9163 SCP_WCE) == 0) 9164 flags |= CTL_LLF_FUA; 9165 9166 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9167 ctsio->kern_rel_offset = 0; 9168 9169 /* 9170 * Set the IO_CONT flag, so that if this I/O gets passed to 9171 * ctl_data_submit_done(), it'll get passed back to 9172 * ctl_ctl_cnw_cont() for further processing. 9173 */ 9174 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9175 ctsio->io_cont = ctl_cnw_cont; 9176 9177 lbalen = (struct ctl_lba_len_flags *) 9178 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9179 lbalen->lba = lba; 9180 lbalen->len = num_blocks; 9181 lbalen->flags = CTL_LLF_COMPARE | flags; 9182 9183 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9184 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9185 return (retval); 9186} 9187 9188int 9189ctl_verify(struct ctl_scsiio *ctsio) 9190{ 9191 struct ctl_lun *lun; 9192 struct ctl_lba_len_flags *lbalen; 9193 uint64_t lba; 9194 uint32_t num_blocks; 9195 int bytchk, flags; 9196 int retval; 9197 9198 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9199 9200 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9201 9202 bytchk = 0; 9203 flags = CTL_LLF_FUA; 9204 retval = CTL_RETVAL_COMPLETE; 9205 9206 switch (ctsio->cdb[0]) { 9207 case VERIFY_10: { 9208 struct scsi_verify_10 *cdb; 9209 9210 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9211 if (cdb->byte2 & SVFY_BYTCHK) 9212 bytchk = 1; 9213 if (cdb->byte2 & SVFY_DPO) 9214 flags |= CTL_LLF_DPO; 9215 lba = scsi_4btoul(cdb->addr); 9216 num_blocks = scsi_2btoul(cdb->length); 9217 break; 9218 } 9219 case VERIFY_12: { 9220 struct scsi_verify_12 *cdb; 9221 9222 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9223 if (cdb->byte2 & SVFY_BYTCHK) 9224 bytchk = 1; 9225 if (cdb->byte2 & SVFY_DPO) 9226 flags |= CTL_LLF_DPO; 9227 lba = scsi_4btoul(cdb->addr); 9228 num_blocks = scsi_4btoul(cdb->length); 9229 break; 9230 } 9231 case VERIFY_16: { 9232 struct scsi_rw_16 *cdb; 9233 9234 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9235 if (cdb->byte2 & SVFY_BYTCHK) 9236 bytchk = 1; 9237 if (cdb->byte2 & SVFY_DPO) 9238 flags |= CTL_LLF_DPO; 9239 lba = scsi_8btou64(cdb->addr); 9240 num_blocks = scsi_4btoul(cdb->length); 9241 break; 9242 } 9243 default: 9244 /* 9245 * We got a command we don't support. This shouldn't 9246 * happen, commands should be filtered out above us. 9247 */ 9248 ctl_set_invalid_opcode(ctsio); 9249 ctl_done((union ctl_io *)ctsio); 9250 return (CTL_RETVAL_COMPLETE); 9251 } 9252 9253 /* 9254 * The first check is to make sure we're in bounds, the second 9255 * check is to catch wrap-around problems. If the lba + num blocks 9256 * is less than the lba, then we've wrapped around and the block 9257 * range is invalid anyway. 9258 */ 9259 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9260 || ((lba + num_blocks) < lba)) { 9261 ctl_set_lba_out_of_range(ctsio); 9262 ctl_done((union ctl_io *)ctsio); 9263 return (CTL_RETVAL_COMPLETE); 9264 } 9265 9266 /* 9267 * According to SBC-3, a transfer length of 0 is not an error. 9268 */ 9269 if (num_blocks == 0) { 9270 ctl_set_success(ctsio); 9271 ctl_done((union ctl_io *)ctsio); 9272 return (CTL_RETVAL_COMPLETE); 9273 } 9274 9275 lbalen = (struct ctl_lba_len_flags *) 9276 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9277 lbalen->lba = lba; 9278 lbalen->len = num_blocks; 9279 if (bytchk) { 9280 lbalen->flags = CTL_LLF_COMPARE | flags; 9281 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9282 } else { 9283 lbalen->flags = CTL_LLF_VERIFY | flags; 9284 ctsio->kern_total_len = 0; 9285 } 9286 ctsio->kern_rel_offset = 0; 9287 9288 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9289 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9290 return (retval); 9291} 9292 9293int 9294ctl_report_luns(struct ctl_scsiio *ctsio) 9295{ 9296 struct scsi_report_luns *cdb; 9297 struct scsi_report_luns_data *lun_data; 9298 struct ctl_lun *lun, *request_lun; 9299 int num_luns, retval; 9300 uint32_t alloc_len, lun_datalen; 9301 int num_filled, well_known; 9302 uint32_t initidx, targ_lun_id, lun_id; 9303 9304 retval = CTL_RETVAL_COMPLETE; 9305 well_known = 0; 9306 9307 cdb = (struct scsi_report_luns *)ctsio->cdb; 9308 9309 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9310 9311 mtx_lock(&control_softc->ctl_lock); 9312 num_luns = control_softc->num_luns; 9313 mtx_unlock(&control_softc->ctl_lock); 9314 9315 switch (cdb->select_report) { 9316 case RPL_REPORT_DEFAULT: 9317 case RPL_REPORT_ALL: 9318 break; 9319 case RPL_REPORT_WELLKNOWN: 9320 well_known = 1; 9321 num_luns = 0; 9322 break; 9323 default: 9324 ctl_set_invalid_field(ctsio, 9325 /*sks_valid*/ 1, 9326 /*command*/ 1, 9327 /*field*/ 2, 9328 /*bit_valid*/ 0, 9329 /*bit*/ 0); 9330 ctl_done((union ctl_io *)ctsio); 9331 return (retval); 9332 break; /* NOTREACHED */ 9333 } 9334 9335 alloc_len = scsi_4btoul(cdb->length); 9336 /* 9337 * The initiator has to allocate at least 16 bytes for this request, 9338 * so he can at least get the header and the first LUN. Otherwise 9339 * we reject the request (per SPC-3 rev 14, section 6.21). 9340 */ 9341 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9342 sizeof(struct scsi_report_luns_lundata))) { 9343 ctl_set_invalid_field(ctsio, 9344 /*sks_valid*/ 1, 9345 /*command*/ 1, 9346 /*field*/ 6, 9347 /*bit_valid*/ 0, 9348 /*bit*/ 0); 9349 ctl_done((union ctl_io *)ctsio); 9350 return (retval); 9351 } 9352 9353 request_lun = (struct ctl_lun *) 9354 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9355 9356 lun_datalen = sizeof(*lun_data) + 9357 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9358 9359 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9360 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9361 ctsio->kern_sg_entries = 0; 9362 9363 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9364 9365 mtx_lock(&control_softc->ctl_lock); 9366 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9367 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9368 if (lun_id >= CTL_MAX_LUNS) 9369 continue; 9370 lun = control_softc->ctl_luns[lun_id]; 9371 if (lun == NULL) 9372 continue; 9373 9374 if (targ_lun_id <= 0xff) { 9375 /* 9376 * Peripheral addressing method, bus number 0. 9377 */ 9378 lun_data->luns[num_filled].lundata[0] = 9379 RPL_LUNDATA_ATYP_PERIPH; 9380 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9381 num_filled++; 9382 } else if (targ_lun_id <= 0x3fff) { 9383 /* 9384 * Flat addressing method. 9385 */ 9386 lun_data->luns[num_filled].lundata[0] = 9387 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9388 lun_data->luns[num_filled].lundata[1] = 9389 (targ_lun_id & 0xff); 9390 num_filled++; 9391 } else if (targ_lun_id <= 0xffffff) { 9392 /* 9393 * Extended flat addressing method. 9394 */ 9395 lun_data->luns[num_filled].lundata[0] = 9396 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9397 scsi_ulto3b(targ_lun_id, 9398 &lun_data->luns[num_filled].lundata[1]); 9399 num_filled++; 9400 } else { 9401 printf("ctl_report_luns: bogus LUN number %jd, " 9402 "skipping\n", (intmax_t)targ_lun_id); 9403 } 9404 /* 9405 * According to SPC-3, rev 14 section 6.21: 9406 * 9407 * "The execution of a REPORT LUNS command to any valid and 9408 * installed logical unit shall clear the REPORTED LUNS DATA 9409 * HAS CHANGED unit attention condition for all logical 9410 * units of that target with respect to the requesting 9411 * initiator. A valid and installed logical unit is one 9412 * having a PERIPHERAL QUALIFIER of 000b in the standard 9413 * INQUIRY data (see 6.4.2)." 9414 * 9415 * If request_lun is NULL, the LUN this report luns command 9416 * was issued to is either disabled or doesn't exist. In that 9417 * case, we shouldn't clear any pending lun change unit 9418 * attention. 9419 */ 9420 if (request_lun != NULL) { 9421 mtx_lock(&lun->lun_lock); 9422 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9423 mtx_unlock(&lun->lun_lock); 9424 } 9425 } 9426 mtx_unlock(&control_softc->ctl_lock); 9427 9428 /* 9429 * It's quite possible that we've returned fewer LUNs than we allocated 9430 * space for. Trim it. 9431 */ 9432 lun_datalen = sizeof(*lun_data) + 9433 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9434 9435 if (lun_datalen < alloc_len) { 9436 ctsio->residual = alloc_len - lun_datalen; 9437 ctsio->kern_data_len = lun_datalen; 9438 ctsio->kern_total_len = lun_datalen; 9439 } else { 9440 ctsio->residual = 0; 9441 ctsio->kern_data_len = alloc_len; 9442 ctsio->kern_total_len = alloc_len; 9443 } 9444 ctsio->kern_data_resid = 0; 9445 ctsio->kern_rel_offset = 0; 9446 ctsio->kern_sg_entries = 0; 9447 9448 /* 9449 * We set this to the actual data length, regardless of how much 9450 * space we actually have to return results. If the user looks at 9451 * this value, he'll know whether or not he allocated enough space 9452 * and reissue the command if necessary. We don't support well 9453 * known logical units, so if the user asks for that, return none. 9454 */ 9455 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9456 9457 /* 9458 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9459 * this request. 9460 */ 9461 ctl_set_success(ctsio); 9462 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9463 ctsio->be_move_done = ctl_config_move_done; 9464 ctl_datamove((union ctl_io *)ctsio); 9465 return (retval); 9466} 9467 9468int 9469ctl_request_sense(struct ctl_scsiio *ctsio) 9470{ 9471 struct scsi_request_sense *cdb; 9472 struct scsi_sense_data *sense_ptr; 9473 struct ctl_lun *lun; 9474 uint32_t initidx; 9475 int have_error; 9476 scsi_sense_data_type sense_format; 9477 ctl_ua_type ua_type; 9478 9479 cdb = (struct scsi_request_sense *)ctsio->cdb; 9480 9481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9482 9483 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9484 9485 /* 9486 * Determine which sense format the user wants. 9487 */ 9488 if (cdb->byte2 & SRS_DESC) 9489 sense_format = SSD_TYPE_DESC; 9490 else 9491 sense_format = SSD_TYPE_FIXED; 9492 9493 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9494 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9495 ctsio->kern_sg_entries = 0; 9496 9497 /* 9498 * struct scsi_sense_data, which is currently set to 256 bytes, is 9499 * larger than the largest allowed value for the length field in the 9500 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9501 */ 9502 ctsio->residual = 0; 9503 ctsio->kern_data_len = cdb->length; 9504 ctsio->kern_total_len = cdb->length; 9505 9506 ctsio->kern_data_resid = 0; 9507 ctsio->kern_rel_offset = 0; 9508 ctsio->kern_sg_entries = 0; 9509 9510 /* 9511 * If we don't have a LUN, we don't have any pending sense. 9512 */ 9513 if (lun == NULL) 9514 goto no_sense; 9515 9516 have_error = 0; 9517 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9518 /* 9519 * Check for pending sense, and then for pending unit attentions. 9520 * Pending sense gets returned first, then pending unit attentions. 9521 */ 9522 mtx_lock(&lun->lun_lock); 9523#ifdef CTL_WITH_CA 9524 if (ctl_is_set(lun->have_ca, initidx)) { 9525 scsi_sense_data_type stored_format; 9526 9527 /* 9528 * Check to see which sense format was used for the stored 9529 * sense data. 9530 */ 9531 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9532 9533 /* 9534 * If the user requested a different sense format than the 9535 * one we stored, then we need to convert it to the other 9536 * format. If we're going from descriptor to fixed format 9537 * sense data, we may lose things in translation, depending 9538 * on what options were used. 9539 * 9540 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9541 * for some reason we'll just copy it out as-is. 9542 */ 9543 if ((stored_format == SSD_TYPE_FIXED) 9544 && (sense_format == SSD_TYPE_DESC)) 9545 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9546 &lun->pending_sense[initidx], 9547 (struct scsi_sense_data_desc *)sense_ptr); 9548 else if ((stored_format == SSD_TYPE_DESC) 9549 && (sense_format == SSD_TYPE_FIXED)) 9550 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9551 &lun->pending_sense[initidx], 9552 (struct scsi_sense_data_fixed *)sense_ptr); 9553 else 9554 memcpy(sense_ptr, &lun->pending_sense[initidx], 9555 ctl_min(sizeof(*sense_ptr), 9556 sizeof(lun->pending_sense[initidx]))); 9557 9558 ctl_clear_mask(lun->have_ca, initidx); 9559 have_error = 1; 9560 } else 9561#endif 9562 { 9563 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9564 if (ua_type != CTL_UA_NONE) 9565 have_error = 1; 9566 } 9567 mtx_unlock(&lun->lun_lock); 9568 9569 /* 9570 * We already have a pending error, return it. 9571 */ 9572 if (have_error != 0) { 9573 /* 9574 * We report the SCSI status as OK, since the status of the 9575 * request sense command itself is OK. 9576 * We report 0 for the sense length, because we aren't doing 9577 * autosense in this case. We're reporting sense as 9578 * parameter data. 9579 */ 9580 ctl_set_success(ctsio); 9581 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9582 ctsio->be_move_done = ctl_config_move_done; 9583 ctl_datamove((union ctl_io *)ctsio); 9584 return (CTL_RETVAL_COMPLETE); 9585 } 9586 9587no_sense: 9588 9589 /* 9590 * No sense information to report, so we report that everything is 9591 * okay. 9592 */ 9593 ctl_set_sense_data(sense_ptr, 9594 lun, 9595 sense_format, 9596 /*current_error*/ 1, 9597 /*sense_key*/ SSD_KEY_NO_SENSE, 9598 /*asc*/ 0x00, 9599 /*ascq*/ 0x00, 9600 SSD_ELEM_NONE); 9601 9602 /* 9603 * We report 0 for the sense length, because we aren't doing 9604 * autosense in this case. We're reporting sense as parameter data. 9605 */ 9606 ctl_set_success(ctsio); 9607 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9608 ctsio->be_move_done = ctl_config_move_done; 9609 ctl_datamove((union ctl_io *)ctsio); 9610 return (CTL_RETVAL_COMPLETE); 9611} 9612 9613int 9614ctl_tur(struct ctl_scsiio *ctsio) 9615{ 9616 9617 CTL_DEBUG_PRINT(("ctl_tur\n")); 9618 9619 ctl_set_success(ctsio); 9620 ctl_done((union ctl_io *)ctsio); 9621 9622 return (CTL_RETVAL_COMPLETE); 9623} 9624 9625#ifdef notyet 9626static int 9627ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9628{ 9629 9630} 9631#endif 9632 9633static int 9634ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9635{ 9636 struct scsi_vpd_supported_pages *pages; 9637 int sup_page_size; 9638 struct ctl_lun *lun; 9639 9640 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9641 9642 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9643 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9644 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9645 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9646 ctsio->kern_sg_entries = 0; 9647 9648 if (sup_page_size < alloc_len) { 9649 ctsio->residual = alloc_len - sup_page_size; 9650 ctsio->kern_data_len = sup_page_size; 9651 ctsio->kern_total_len = sup_page_size; 9652 } else { 9653 ctsio->residual = 0; 9654 ctsio->kern_data_len = alloc_len; 9655 ctsio->kern_total_len = alloc_len; 9656 } 9657 ctsio->kern_data_resid = 0; 9658 ctsio->kern_rel_offset = 0; 9659 ctsio->kern_sg_entries = 0; 9660 9661 /* 9662 * The control device is always connected. The disk device, on the 9663 * other hand, may not be online all the time. Need to change this 9664 * to figure out whether the disk device is actually online or not. 9665 */ 9666 if (lun != NULL) 9667 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9668 lun->be_lun->lun_type; 9669 else 9670 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9671 9672 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9673 /* Supported VPD pages */ 9674 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9675 /* Serial Number */ 9676 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9677 /* Device Identification */ 9678 pages->page_list[2] = SVPD_DEVICE_ID; 9679 /* Extended INQUIRY Data */ 9680 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9681 /* Mode Page Policy */ 9682 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9683 /* SCSI Ports */ 9684 pages->page_list[5] = SVPD_SCSI_PORTS; 9685 /* Third-party Copy */ 9686 pages->page_list[6] = SVPD_SCSI_TPC; 9687 /* Block limits */ 9688 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9689 /* Block Device Characteristics */ 9690 pages->page_list[8] = SVPD_BDC; 9691 /* Logical Block Provisioning */ 9692 pages->page_list[9] = SVPD_LBP; 9693 9694 ctl_set_success(ctsio); 9695 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9696 ctsio->be_move_done = ctl_config_move_done; 9697 ctl_datamove((union ctl_io *)ctsio); 9698 return (CTL_RETVAL_COMPLETE); 9699} 9700 9701static int 9702ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9703{ 9704 struct scsi_vpd_unit_serial_number *sn_ptr; 9705 struct ctl_lun *lun; 9706 int data_len; 9707 9708 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9709 9710 data_len = 4 + CTL_SN_LEN; 9711 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9712 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9713 if (data_len < alloc_len) { 9714 ctsio->residual = alloc_len - data_len; 9715 ctsio->kern_data_len = data_len; 9716 ctsio->kern_total_len = data_len; 9717 } else { 9718 ctsio->residual = 0; 9719 ctsio->kern_data_len = alloc_len; 9720 ctsio->kern_total_len = alloc_len; 9721 } 9722 ctsio->kern_data_resid = 0; 9723 ctsio->kern_rel_offset = 0; 9724 ctsio->kern_sg_entries = 0; 9725 9726 /* 9727 * The control device is always connected. The disk device, on the 9728 * other hand, may not be online all the time. Need to change this 9729 * to figure out whether the disk device is actually online or not. 9730 */ 9731 if (lun != NULL) 9732 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9733 lun->be_lun->lun_type; 9734 else 9735 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9736 9737 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9738 sn_ptr->length = CTL_SN_LEN; 9739 /* 9740 * If we don't have a LUN, we just leave the serial number as 9741 * all spaces. 9742 */ 9743 if (lun != NULL) { 9744 strncpy((char *)sn_ptr->serial_num, 9745 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9746 } else 9747 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9748 9749 ctl_set_success(ctsio); 9750 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9751 ctsio->be_move_done = ctl_config_move_done; 9752 ctl_datamove((union ctl_io *)ctsio); 9753 return (CTL_RETVAL_COMPLETE); 9754} 9755 9756 9757static int 9758ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9759{ 9760 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9761 struct ctl_lun *lun; 9762 int data_len; 9763 9764 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9765 9766 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9767 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9768 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9769 ctsio->kern_sg_entries = 0; 9770 9771 if (data_len < alloc_len) { 9772 ctsio->residual = alloc_len - data_len; 9773 ctsio->kern_data_len = data_len; 9774 ctsio->kern_total_len = data_len; 9775 } else { 9776 ctsio->residual = 0; 9777 ctsio->kern_data_len = alloc_len; 9778 ctsio->kern_total_len = alloc_len; 9779 } 9780 ctsio->kern_data_resid = 0; 9781 ctsio->kern_rel_offset = 0; 9782 ctsio->kern_sg_entries = 0; 9783 9784 /* 9785 * The control device is always connected. The disk device, on the 9786 * other hand, may not be online all the time. 9787 */ 9788 if (lun != NULL) 9789 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9790 lun->be_lun->lun_type; 9791 else 9792 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9793 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9794 eid_ptr->page_length = data_len - 4; 9795 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9796 eid_ptr->flags3 = SVPD_EID_V_SUP; 9797 9798 ctl_set_success(ctsio); 9799 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9800 ctsio->be_move_done = ctl_config_move_done; 9801 ctl_datamove((union ctl_io *)ctsio); 9802 return (CTL_RETVAL_COMPLETE); 9803} 9804 9805static int 9806ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9807{ 9808 struct scsi_vpd_mode_page_policy *mpp_ptr; 9809 struct ctl_lun *lun; 9810 int data_len; 9811 9812 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9813 9814 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9815 sizeof(struct scsi_vpd_mode_page_policy_descr); 9816 9817 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9818 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9819 ctsio->kern_sg_entries = 0; 9820 9821 if (data_len < alloc_len) { 9822 ctsio->residual = alloc_len - data_len; 9823 ctsio->kern_data_len = data_len; 9824 ctsio->kern_total_len = data_len; 9825 } else { 9826 ctsio->residual = 0; 9827 ctsio->kern_data_len = alloc_len; 9828 ctsio->kern_total_len = alloc_len; 9829 } 9830 ctsio->kern_data_resid = 0; 9831 ctsio->kern_rel_offset = 0; 9832 ctsio->kern_sg_entries = 0; 9833 9834 /* 9835 * The control device is always connected. The disk device, on the 9836 * other hand, may not be online all the time. 9837 */ 9838 if (lun != NULL) 9839 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9840 lun->be_lun->lun_type; 9841 else 9842 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9843 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9844 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9845 mpp_ptr->descr[0].page_code = 0x3f; 9846 mpp_ptr->descr[0].subpage_code = 0xff; 9847 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9848 9849 ctl_set_success(ctsio); 9850 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9851 ctsio->be_move_done = ctl_config_move_done; 9852 ctl_datamove((union ctl_io *)ctsio); 9853 return (CTL_RETVAL_COMPLETE); 9854} 9855 9856static int 9857ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9858{ 9859 struct scsi_vpd_device_id *devid_ptr; 9860 struct scsi_vpd_id_descriptor *desc; 9861 struct ctl_softc *ctl_softc; 9862 struct ctl_lun *lun; 9863 struct ctl_port *port; 9864 int data_len; 9865 uint8_t proto; 9866 9867 ctl_softc = control_softc; 9868 9869 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9870 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9871 9872 data_len = sizeof(struct scsi_vpd_device_id) + 9873 sizeof(struct scsi_vpd_id_descriptor) + 9874 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9875 sizeof(struct scsi_vpd_id_descriptor) + 9876 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9877 if (lun && lun->lun_devid) 9878 data_len += lun->lun_devid->len; 9879 if (port->port_devid) 9880 data_len += port->port_devid->len; 9881 if (port->target_devid) 9882 data_len += port->target_devid->len; 9883 9884 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9885 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9886 ctsio->kern_sg_entries = 0; 9887 9888 if (data_len < alloc_len) { 9889 ctsio->residual = alloc_len - data_len; 9890 ctsio->kern_data_len = data_len; 9891 ctsio->kern_total_len = data_len; 9892 } else { 9893 ctsio->residual = 0; 9894 ctsio->kern_data_len = alloc_len; 9895 ctsio->kern_total_len = alloc_len; 9896 } 9897 ctsio->kern_data_resid = 0; 9898 ctsio->kern_rel_offset = 0; 9899 ctsio->kern_sg_entries = 0; 9900 9901 /* 9902 * The control device is always connected. The disk device, on the 9903 * other hand, may not be online all the time. 9904 */ 9905 if (lun != NULL) 9906 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9907 lun->be_lun->lun_type; 9908 else 9909 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9910 devid_ptr->page_code = SVPD_DEVICE_ID; 9911 scsi_ulto2b(data_len - 4, devid_ptr->length); 9912 9913 if (port->port_type == CTL_PORT_FC) 9914 proto = SCSI_PROTO_FC << 4; 9915 else if (port->port_type == CTL_PORT_ISCSI) 9916 proto = SCSI_PROTO_ISCSI << 4; 9917 else 9918 proto = SCSI_PROTO_SPI << 4; 9919 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9920 9921 /* 9922 * We're using a LUN association here. i.e., this device ID is a 9923 * per-LUN identifier. 9924 */ 9925 if (lun && lun->lun_devid) { 9926 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9927 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9928 lun->lun_devid->len); 9929 } 9930 9931 /* 9932 * This is for the WWPN which is a port association. 9933 */ 9934 if (port->port_devid) { 9935 memcpy(desc, port->port_devid->data, port->port_devid->len); 9936 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9937 port->port_devid->len); 9938 } 9939 9940 /* 9941 * This is for the Relative Target Port(type 4h) identifier 9942 */ 9943 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9944 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9945 SVPD_ID_TYPE_RELTARG; 9946 desc->length = 4; 9947 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9948 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9949 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9950 9951 /* 9952 * This is for the Target Port Group(type 5h) identifier 9953 */ 9954 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9955 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9956 SVPD_ID_TYPE_TPORTGRP; 9957 desc->length = 4; 9958 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9959 &desc->identifier[2]); 9960 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9961 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9962 9963 /* 9964 * This is for the Target identifier 9965 */ 9966 if (port->target_devid) { 9967 memcpy(desc, port->target_devid->data, port->target_devid->len); 9968 } 9969 9970 ctl_set_success(ctsio); 9971 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9972 ctsio->be_move_done = ctl_config_move_done; 9973 ctl_datamove((union ctl_io *)ctsio); 9974 return (CTL_RETVAL_COMPLETE); 9975} 9976 9977static int 9978ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9979{ 9980 struct ctl_softc *softc = control_softc; 9981 struct scsi_vpd_scsi_ports *sp; 9982 struct scsi_vpd_port_designation *pd; 9983 struct scsi_vpd_port_designation_cont *pdc; 9984 struct ctl_lun *lun; 9985 struct ctl_port *port; 9986 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9987 int num_target_port_groups; 9988 9989 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9990 9991 if (softc->is_single) 9992 num_target_port_groups = 1; 9993 else 9994 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9995 num_target_ports = 0; 9996 iid_len = 0; 9997 id_len = 0; 9998 mtx_lock(&softc->ctl_lock); 9999 STAILQ_FOREACH(port, &softc->port_list, links) { 10000 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10001 continue; 10002 if (lun != NULL && 10003 ctl_map_lun_back(port->targ_port, lun->lun) >= 10004 CTL_MAX_LUNS) 10005 continue; 10006 num_target_ports++; 10007 if (port->init_devid) 10008 iid_len += port->init_devid->len; 10009 if (port->port_devid) 10010 id_len += port->port_devid->len; 10011 } 10012 mtx_unlock(&softc->ctl_lock); 10013 10014 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10015 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10016 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10017 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10018 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10019 ctsio->kern_sg_entries = 0; 10020 10021 if (data_len < alloc_len) { 10022 ctsio->residual = alloc_len - data_len; 10023 ctsio->kern_data_len = data_len; 10024 ctsio->kern_total_len = data_len; 10025 } else { 10026 ctsio->residual = 0; 10027 ctsio->kern_data_len = alloc_len; 10028 ctsio->kern_total_len = alloc_len; 10029 } 10030 ctsio->kern_data_resid = 0; 10031 ctsio->kern_rel_offset = 0; 10032 ctsio->kern_sg_entries = 0; 10033 10034 /* 10035 * The control device is always connected. The disk device, on the 10036 * other hand, may not be online all the time. Need to change this 10037 * to figure out whether the disk device is actually online or not. 10038 */ 10039 if (lun != NULL) 10040 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10041 lun->be_lun->lun_type; 10042 else 10043 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10044 10045 sp->page_code = SVPD_SCSI_PORTS; 10046 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10047 sp->page_length); 10048 pd = &sp->design[0]; 10049 10050 mtx_lock(&softc->ctl_lock); 10051 pg = softc->port_offset / CTL_MAX_PORTS; 10052 for (g = 0; g < num_target_port_groups; g++) { 10053 STAILQ_FOREACH(port, &softc->port_list, links) { 10054 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10055 continue; 10056 if (lun != NULL && 10057 ctl_map_lun_back(port->targ_port, lun->lun) >= 10058 CTL_MAX_LUNS) 10059 continue; 10060 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10061 scsi_ulto2b(p, pd->relative_port_id); 10062 if (port->init_devid && g == pg) { 10063 iid_len = port->init_devid->len; 10064 memcpy(pd->initiator_transportid, 10065 port->init_devid->data, port->init_devid->len); 10066 } else 10067 iid_len = 0; 10068 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10069 pdc = (struct scsi_vpd_port_designation_cont *) 10070 (&pd->initiator_transportid[iid_len]); 10071 if (port->port_devid && g == pg) { 10072 id_len = port->port_devid->len; 10073 memcpy(pdc->target_port_descriptors, 10074 port->port_devid->data, port->port_devid->len); 10075 } else 10076 id_len = 0; 10077 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10078 pd = (struct scsi_vpd_port_designation *) 10079 ((uint8_t *)pdc->target_port_descriptors + id_len); 10080 } 10081 } 10082 mtx_unlock(&softc->ctl_lock); 10083 10084 ctl_set_success(ctsio); 10085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10086 ctsio->be_move_done = ctl_config_move_done; 10087 ctl_datamove((union ctl_io *)ctsio); 10088 return (CTL_RETVAL_COMPLETE); 10089} 10090 10091static int 10092ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10093{ 10094 struct scsi_vpd_block_limits *bl_ptr; 10095 struct ctl_lun *lun; 10096 int bs; 10097 10098 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10099 10100 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10101 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10102 ctsio->kern_sg_entries = 0; 10103 10104 if (sizeof(*bl_ptr) < alloc_len) { 10105 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10106 ctsio->kern_data_len = sizeof(*bl_ptr); 10107 ctsio->kern_total_len = sizeof(*bl_ptr); 10108 } else { 10109 ctsio->residual = 0; 10110 ctsio->kern_data_len = alloc_len; 10111 ctsio->kern_total_len = alloc_len; 10112 } 10113 ctsio->kern_data_resid = 0; 10114 ctsio->kern_rel_offset = 0; 10115 ctsio->kern_sg_entries = 0; 10116 10117 /* 10118 * The control device is always connected. The disk device, on the 10119 * other hand, may not be online all the time. Need to change this 10120 * to figure out whether the disk device is actually online or not. 10121 */ 10122 if (lun != NULL) 10123 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10124 lun->be_lun->lun_type; 10125 else 10126 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10127 10128 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10129 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10130 bl_ptr->max_cmp_write_len = 0xff; 10131 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10132 if (lun != NULL) { 10133 bs = lun->be_lun->blocksize; 10134 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10135 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10136 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10137 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10138 if (lun->be_lun->pblockexp != 0) { 10139 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10140 bl_ptr->opt_unmap_grain); 10141 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10142 bl_ptr->unmap_grain_align); 10143 } 10144 } 10145 scsi_ulto4b(lun->be_lun->atomicblock, 10146 bl_ptr->max_atomic_transfer_length); 10147 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10148 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10149 } 10150 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10151 10152 ctl_set_success(ctsio); 10153 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10154 ctsio->be_move_done = ctl_config_move_done; 10155 ctl_datamove((union ctl_io *)ctsio); 10156 return (CTL_RETVAL_COMPLETE); 10157} 10158 10159static int 10160ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10161{ 10162 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10163 struct ctl_lun *lun; 10164 const char *value; 10165 u_int i; 10166 10167 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10168 10169 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10170 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10171 ctsio->kern_sg_entries = 0; 10172 10173 if (sizeof(*bdc_ptr) < alloc_len) { 10174 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10175 ctsio->kern_data_len = sizeof(*bdc_ptr); 10176 ctsio->kern_total_len = sizeof(*bdc_ptr); 10177 } else { 10178 ctsio->residual = 0; 10179 ctsio->kern_data_len = alloc_len; 10180 ctsio->kern_total_len = alloc_len; 10181 } 10182 ctsio->kern_data_resid = 0; 10183 ctsio->kern_rel_offset = 0; 10184 ctsio->kern_sg_entries = 0; 10185 10186 /* 10187 * The control device is always connected. The disk device, on the 10188 * other hand, may not be online all the time. Need to change this 10189 * to figure out whether the disk device is actually online or not. 10190 */ 10191 if (lun != NULL) 10192 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10193 lun->be_lun->lun_type; 10194 else 10195 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10196 bdc_ptr->page_code = SVPD_BDC; 10197 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10198 if (lun != NULL && 10199 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10200 i = strtol(value, NULL, 0); 10201 else 10202 i = CTL_DEFAULT_ROTATION_RATE; 10203 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10204 if (lun != NULL && 10205 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10206 i = strtol(value, NULL, 0); 10207 else 10208 i = 0; 10209 bdc_ptr->wab_wac_ff = (i & 0x0f); 10210 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10211 10212 ctl_set_success(ctsio); 10213 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10214 ctsio->be_move_done = ctl_config_move_done; 10215 ctl_datamove((union ctl_io *)ctsio); 10216 return (CTL_RETVAL_COMPLETE); 10217} 10218 10219static int 10220ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10221{ 10222 struct scsi_vpd_logical_block_prov *lbp_ptr; 10223 struct ctl_lun *lun; 10224 10225 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10226 10227 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10228 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10229 ctsio->kern_sg_entries = 0; 10230 10231 if (sizeof(*lbp_ptr) < alloc_len) { 10232 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10233 ctsio->kern_data_len = sizeof(*lbp_ptr); 10234 ctsio->kern_total_len = sizeof(*lbp_ptr); 10235 } else { 10236 ctsio->residual = 0; 10237 ctsio->kern_data_len = alloc_len; 10238 ctsio->kern_total_len = alloc_len; 10239 } 10240 ctsio->kern_data_resid = 0; 10241 ctsio->kern_rel_offset = 0; 10242 ctsio->kern_sg_entries = 0; 10243 10244 /* 10245 * The control device is always connected. The disk device, on the 10246 * other hand, may not be online all the time. Need to change this 10247 * to figure out whether the disk device is actually online or not. 10248 */ 10249 if (lun != NULL) 10250 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10251 lun->be_lun->lun_type; 10252 else 10253 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10254 10255 lbp_ptr->page_code = SVPD_LBP; 10256 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10257 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10258 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10259 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10260 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10261 lbp_ptr->prov_type = SVPD_LBP_THIN; 10262 } 10263 10264 ctl_set_success(ctsio); 10265 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10266 ctsio->be_move_done = ctl_config_move_done; 10267 ctl_datamove((union ctl_io *)ctsio); 10268 return (CTL_RETVAL_COMPLETE); 10269} 10270 10271static int 10272ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10273{ 10274 struct scsi_inquiry *cdb; 10275 int alloc_len, retval; 10276 10277 cdb = (struct scsi_inquiry *)ctsio->cdb; 10278 10279 retval = CTL_RETVAL_COMPLETE; 10280 10281 alloc_len = scsi_2btoul(cdb->length); 10282 10283 switch (cdb->page_code) { 10284 case SVPD_SUPPORTED_PAGES: 10285 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10286 break; 10287 case SVPD_UNIT_SERIAL_NUMBER: 10288 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10289 break; 10290 case SVPD_DEVICE_ID: 10291 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10292 break; 10293 case SVPD_EXTENDED_INQUIRY_DATA: 10294 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10295 break; 10296 case SVPD_MODE_PAGE_POLICY: 10297 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10298 break; 10299 case SVPD_SCSI_PORTS: 10300 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10301 break; 10302 case SVPD_SCSI_TPC: 10303 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10304 break; 10305 case SVPD_BLOCK_LIMITS: 10306 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10307 break; 10308 case SVPD_BDC: 10309 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10310 break; 10311 case SVPD_LBP: 10312 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10313 break; 10314 default: 10315 ctl_set_invalid_field(ctsio, 10316 /*sks_valid*/ 1, 10317 /*command*/ 1, 10318 /*field*/ 2, 10319 /*bit_valid*/ 0, 10320 /*bit*/ 0); 10321 ctl_done((union ctl_io *)ctsio); 10322 retval = CTL_RETVAL_COMPLETE; 10323 break; 10324 } 10325 10326 return (retval); 10327} 10328 10329static int 10330ctl_inquiry_std(struct ctl_scsiio *ctsio) 10331{ 10332 struct scsi_inquiry_data *inq_ptr; 10333 struct scsi_inquiry *cdb; 10334 struct ctl_softc *ctl_softc; 10335 struct ctl_lun *lun; 10336 char *val; 10337 uint32_t alloc_len, data_len; 10338 ctl_port_type port_type; 10339 10340 ctl_softc = control_softc; 10341 10342 /* 10343 * Figure out whether we're talking to a Fibre Channel port or not. 10344 * We treat the ioctl front end, and any SCSI adapters, as packetized 10345 * SCSI front ends. 10346 */ 10347 port_type = ctl_softc->ctl_ports[ 10348 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10349 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10350 port_type = CTL_PORT_SCSI; 10351 10352 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10353 cdb = (struct scsi_inquiry *)ctsio->cdb; 10354 alloc_len = scsi_2btoul(cdb->length); 10355 10356 /* 10357 * We malloc the full inquiry data size here and fill it 10358 * in. If the user only asks for less, we'll give him 10359 * that much. 10360 */ 10361 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10362 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10363 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10364 ctsio->kern_sg_entries = 0; 10365 ctsio->kern_data_resid = 0; 10366 ctsio->kern_rel_offset = 0; 10367 10368 if (data_len < alloc_len) { 10369 ctsio->residual = alloc_len - data_len; 10370 ctsio->kern_data_len = data_len; 10371 ctsio->kern_total_len = data_len; 10372 } else { 10373 ctsio->residual = 0; 10374 ctsio->kern_data_len = alloc_len; 10375 ctsio->kern_total_len = alloc_len; 10376 } 10377 10378 /* 10379 * If we have a LUN configured, report it as connected. Otherwise, 10380 * report that it is offline or no device is supported, depending 10381 * on the value of inquiry_pq_no_lun. 10382 * 10383 * According to the spec (SPC-4 r34), the peripheral qualifier 10384 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10385 * 10386 * "A peripheral device having the specified peripheral device type 10387 * is not connected to this logical unit. However, the device 10388 * server is capable of supporting the specified peripheral device 10389 * type on this logical unit." 10390 * 10391 * According to the same spec, the peripheral qualifier 10392 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10393 * 10394 * "The device server is not capable of supporting a peripheral 10395 * device on this logical unit. For this peripheral qualifier the 10396 * peripheral device type shall be set to 1Fh. All other peripheral 10397 * device type values are reserved for this peripheral qualifier." 10398 * 10399 * Given the text, it would seem that we probably want to report that 10400 * the LUN is offline here. There is no LUN connected, but we can 10401 * support a LUN at the given LUN number. 10402 * 10403 * In the real world, though, it sounds like things are a little 10404 * different: 10405 * 10406 * - Linux, when presented with a LUN with the offline peripheral 10407 * qualifier, will create an sg driver instance for it. So when 10408 * you attach it to CTL, you wind up with a ton of sg driver 10409 * instances. (One for every LUN that Linux bothered to probe.) 10410 * Linux does this despite the fact that it issues a REPORT LUNs 10411 * to LUN 0 to get the inventory of supported LUNs. 10412 * 10413 * - There is other anecdotal evidence (from Emulex folks) about 10414 * arrays that use the offline peripheral qualifier for LUNs that 10415 * are on the "passive" path in an active/passive array. 10416 * 10417 * So the solution is provide a hopefully reasonable default 10418 * (return bad/no LUN) and allow the user to change the behavior 10419 * with a tunable/sysctl variable. 10420 */ 10421 if (lun != NULL) 10422 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10423 lun->be_lun->lun_type; 10424 else if (ctl_softc->inquiry_pq_no_lun == 0) 10425 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10426 else 10427 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10428 10429 /* RMB in byte 2 is 0 */ 10430 inq_ptr->version = SCSI_REV_SPC4; 10431 10432 /* 10433 * According to SAM-3, even if a device only supports a single 10434 * level of LUN addressing, it should still set the HISUP bit: 10435 * 10436 * 4.9.1 Logical unit numbers overview 10437 * 10438 * All logical unit number formats described in this standard are 10439 * hierarchical in structure even when only a single level in that 10440 * hierarchy is used. The HISUP bit shall be set to one in the 10441 * standard INQUIRY data (see SPC-2) when any logical unit number 10442 * format described in this standard is used. Non-hierarchical 10443 * formats are outside the scope of this standard. 10444 * 10445 * Therefore we set the HiSup bit here. 10446 * 10447 * The reponse format is 2, per SPC-3. 10448 */ 10449 inq_ptr->response_format = SID_HiSup | 2; 10450 10451 inq_ptr->additional_length = data_len - 10452 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10453 CTL_DEBUG_PRINT(("additional_length = %d\n", 10454 inq_ptr->additional_length)); 10455 10456 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10457 /* 16 bit addressing */ 10458 if (port_type == CTL_PORT_SCSI) 10459 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10460 /* XXX set the SID_MultiP bit here if we're actually going to 10461 respond on multiple ports */ 10462 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10463 10464 /* 16 bit data bus, synchronous transfers */ 10465 if (port_type == CTL_PORT_SCSI) 10466 inq_ptr->flags = SID_WBus16 | SID_Sync; 10467 /* 10468 * XXX KDM do we want to support tagged queueing on the control 10469 * device at all? 10470 */ 10471 if ((lun == NULL) 10472 || (lun->be_lun->lun_type != T_PROCESSOR)) 10473 inq_ptr->flags |= SID_CmdQue; 10474 /* 10475 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10476 * We have 8 bytes for the vendor name, and 16 bytes for the device 10477 * name and 4 bytes for the revision. 10478 */ 10479 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10480 "vendor")) == NULL) { 10481 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10482 } else { 10483 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10484 strncpy(inq_ptr->vendor, val, 10485 min(sizeof(inq_ptr->vendor), strlen(val))); 10486 } 10487 if (lun == NULL) { 10488 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10489 sizeof(inq_ptr->product)); 10490 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10491 switch (lun->be_lun->lun_type) { 10492 case T_DIRECT: 10493 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10494 sizeof(inq_ptr->product)); 10495 break; 10496 case T_PROCESSOR: 10497 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10498 sizeof(inq_ptr->product)); 10499 break; 10500 default: 10501 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10502 sizeof(inq_ptr->product)); 10503 break; 10504 } 10505 } else { 10506 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10507 strncpy(inq_ptr->product, val, 10508 min(sizeof(inq_ptr->product), strlen(val))); 10509 } 10510 10511 /* 10512 * XXX make this a macro somewhere so it automatically gets 10513 * incremented when we make changes. 10514 */ 10515 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10516 "revision")) == NULL) { 10517 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10518 } else { 10519 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10520 strncpy(inq_ptr->revision, val, 10521 min(sizeof(inq_ptr->revision), strlen(val))); 10522 } 10523 10524 /* 10525 * For parallel SCSI, we support double transition and single 10526 * transition clocking. We also support QAS (Quick Arbitration 10527 * and Selection) and Information Unit transfers on both the 10528 * control and array devices. 10529 */ 10530 if (port_type == CTL_PORT_SCSI) 10531 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10532 SID_SPI_IUS; 10533 10534 /* SAM-5 (no version claimed) */ 10535 scsi_ulto2b(0x00A0, inq_ptr->version1); 10536 /* SPC-4 (no version claimed) */ 10537 scsi_ulto2b(0x0460, inq_ptr->version2); 10538 if (port_type == CTL_PORT_FC) { 10539 /* FCP-2 ANSI INCITS.350:2003 */ 10540 scsi_ulto2b(0x0917, inq_ptr->version3); 10541 } else if (port_type == CTL_PORT_SCSI) { 10542 /* SPI-4 ANSI INCITS.362:200x */ 10543 scsi_ulto2b(0x0B56, inq_ptr->version3); 10544 } else if (port_type == CTL_PORT_ISCSI) { 10545 /* iSCSI (no version claimed) */ 10546 scsi_ulto2b(0x0960, inq_ptr->version3); 10547 } else if (port_type == CTL_PORT_SAS) { 10548 /* SAS (no version claimed) */ 10549 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10550 } 10551 10552 if (lun == NULL) { 10553 /* SBC-4 (no version claimed) */ 10554 scsi_ulto2b(0x0600, inq_ptr->version4); 10555 } else { 10556 switch (lun->be_lun->lun_type) { 10557 case T_DIRECT: 10558 /* SBC-4 (no version claimed) */ 10559 scsi_ulto2b(0x0600, inq_ptr->version4); 10560 break; 10561 case T_PROCESSOR: 10562 default: 10563 break; 10564 } 10565 } 10566 10567 ctl_set_success(ctsio); 10568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10569 ctsio->be_move_done = ctl_config_move_done; 10570 ctl_datamove((union ctl_io *)ctsio); 10571 return (CTL_RETVAL_COMPLETE); 10572} 10573 10574int 10575ctl_inquiry(struct ctl_scsiio *ctsio) 10576{ 10577 struct scsi_inquiry *cdb; 10578 int retval; 10579 10580 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10581 10582 cdb = (struct scsi_inquiry *)ctsio->cdb; 10583 if (cdb->byte2 & SI_EVPD) 10584 retval = ctl_inquiry_evpd(ctsio); 10585 else if (cdb->page_code == 0) 10586 retval = ctl_inquiry_std(ctsio); 10587 else { 10588 ctl_set_invalid_field(ctsio, 10589 /*sks_valid*/ 1, 10590 /*command*/ 1, 10591 /*field*/ 2, 10592 /*bit_valid*/ 0, 10593 /*bit*/ 0); 10594 ctl_done((union ctl_io *)ctsio); 10595 return (CTL_RETVAL_COMPLETE); 10596 } 10597 10598 return (retval); 10599} 10600 10601/* 10602 * For known CDB types, parse the LBA and length. 10603 */ 10604static int 10605ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10606{ 10607 if (io->io_hdr.io_type != CTL_IO_SCSI) 10608 return (1); 10609 10610 switch (io->scsiio.cdb[0]) { 10611 case COMPARE_AND_WRITE: { 10612 struct scsi_compare_and_write *cdb; 10613 10614 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10615 10616 *lba = scsi_8btou64(cdb->addr); 10617 *len = cdb->length; 10618 break; 10619 } 10620 case READ_6: 10621 case WRITE_6: { 10622 struct scsi_rw_6 *cdb; 10623 10624 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10625 10626 *lba = scsi_3btoul(cdb->addr); 10627 /* only 5 bits are valid in the most significant address byte */ 10628 *lba &= 0x1fffff; 10629 *len = cdb->length; 10630 break; 10631 } 10632 case READ_10: 10633 case WRITE_10: { 10634 struct scsi_rw_10 *cdb; 10635 10636 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10637 10638 *lba = scsi_4btoul(cdb->addr); 10639 *len = scsi_2btoul(cdb->length); 10640 break; 10641 } 10642 case WRITE_VERIFY_10: { 10643 struct scsi_write_verify_10 *cdb; 10644 10645 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10646 10647 *lba = scsi_4btoul(cdb->addr); 10648 *len = scsi_2btoul(cdb->length); 10649 break; 10650 } 10651 case READ_12: 10652 case WRITE_12: { 10653 struct scsi_rw_12 *cdb; 10654 10655 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10656 10657 *lba = scsi_4btoul(cdb->addr); 10658 *len = scsi_4btoul(cdb->length); 10659 break; 10660 } 10661 case WRITE_VERIFY_12: { 10662 struct scsi_write_verify_12 *cdb; 10663 10664 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10665 10666 *lba = scsi_4btoul(cdb->addr); 10667 *len = scsi_4btoul(cdb->length); 10668 break; 10669 } 10670 case READ_16: 10671 case WRITE_16: 10672 case WRITE_ATOMIC_16: { 10673 struct scsi_rw_16 *cdb; 10674 10675 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10676 10677 *lba = scsi_8btou64(cdb->addr); 10678 *len = scsi_4btoul(cdb->length); 10679 break; 10680 } 10681 case WRITE_VERIFY_16: { 10682 struct scsi_write_verify_16 *cdb; 10683 10684 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10685 10686 *lba = scsi_8btou64(cdb->addr); 10687 *len = scsi_4btoul(cdb->length); 10688 break; 10689 } 10690 case WRITE_SAME_10: { 10691 struct scsi_write_same_10 *cdb; 10692 10693 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10694 10695 *lba = scsi_4btoul(cdb->addr); 10696 *len = scsi_2btoul(cdb->length); 10697 break; 10698 } 10699 case WRITE_SAME_16: { 10700 struct scsi_write_same_16 *cdb; 10701 10702 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10703 10704 *lba = scsi_8btou64(cdb->addr); 10705 *len = scsi_4btoul(cdb->length); 10706 break; 10707 } 10708 case VERIFY_10: { 10709 struct scsi_verify_10 *cdb; 10710 10711 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10712 10713 *lba = scsi_4btoul(cdb->addr); 10714 *len = scsi_2btoul(cdb->length); 10715 break; 10716 } 10717 case VERIFY_12: { 10718 struct scsi_verify_12 *cdb; 10719 10720 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10721 10722 *lba = scsi_4btoul(cdb->addr); 10723 *len = scsi_4btoul(cdb->length); 10724 break; 10725 } 10726 case VERIFY_16: { 10727 struct scsi_verify_16 *cdb; 10728 10729 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10730 10731 *lba = scsi_8btou64(cdb->addr); 10732 *len = scsi_4btoul(cdb->length); 10733 break; 10734 } 10735 case UNMAP: { 10736 *lba = 0; 10737 *len = UINT64_MAX; 10738 break; 10739 } 10740 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10741 struct scsi_get_lba_status *cdb; 10742 10743 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10744 *lba = scsi_8btou64(cdb->addr); 10745 *len = UINT32_MAX; 10746 break; 10747 } 10748 default: 10749 return (1); 10750 break; /* NOTREACHED */ 10751 } 10752 10753 return (0); 10754} 10755 10756static ctl_action 10757ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10758{ 10759 uint64_t endlba1, endlba2; 10760 10761 endlba1 = lba1 + len1 - 1; 10762 endlba2 = lba2 + len2 - 1; 10763 10764 if ((endlba1 < lba2) 10765 || (endlba2 < lba1)) 10766 return (CTL_ACTION_PASS); 10767 else 10768 return (CTL_ACTION_BLOCK); 10769} 10770 10771static int 10772ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10773{ 10774 struct ctl_ptr_len_flags *ptrlen; 10775 struct scsi_unmap_desc *buf, *end, *range; 10776 uint64_t lba; 10777 uint32_t len; 10778 10779 /* If not UNMAP -- go other way. */ 10780 if (io->io_hdr.io_type != CTL_IO_SCSI || 10781 io->scsiio.cdb[0] != UNMAP) 10782 return (CTL_ACTION_ERROR); 10783 10784 /* If UNMAP without data -- block and wait for data. */ 10785 ptrlen = (struct ctl_ptr_len_flags *) 10786 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10787 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10788 ptrlen->ptr == NULL) 10789 return (CTL_ACTION_BLOCK); 10790 10791 /* UNMAP with data -- check for collision. */ 10792 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10793 end = buf + ptrlen->len / sizeof(*buf); 10794 for (range = buf; range < end; range++) { 10795 lba = scsi_8btou64(range->lba); 10796 len = scsi_4btoul(range->length); 10797 if ((lba < lba2 + len2) && (lba + len > lba2)) 10798 return (CTL_ACTION_BLOCK); 10799 } 10800 return (CTL_ACTION_PASS); 10801} 10802 10803static ctl_action 10804ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10805{ 10806 uint64_t lba1, lba2; 10807 uint64_t len1, len2; 10808 int retval; 10809 10810 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10811 return (CTL_ACTION_ERROR); 10812 10813 retval = ctl_extent_check_unmap(io2, lba1, len1); 10814 if (retval != CTL_ACTION_ERROR) 10815 return (retval); 10816 10817 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10818 return (CTL_ACTION_ERROR); 10819 10820 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10821} 10822 10823static ctl_action 10824ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10825 union ctl_io *ooa_io) 10826{ 10827 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10828 ctl_serialize_action *serialize_row; 10829 10830 /* 10831 * The initiator attempted multiple untagged commands at the same 10832 * time. Can't do that. 10833 */ 10834 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10835 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10836 && ((pending_io->io_hdr.nexus.targ_port == 10837 ooa_io->io_hdr.nexus.targ_port) 10838 && (pending_io->io_hdr.nexus.initid.id == 10839 ooa_io->io_hdr.nexus.initid.id)) 10840 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10841 return (CTL_ACTION_OVERLAP); 10842 10843 /* 10844 * The initiator attempted to send multiple tagged commands with 10845 * the same ID. (It's fine if different initiators have the same 10846 * tag ID.) 10847 * 10848 * Even if all of those conditions are true, we don't kill the I/O 10849 * if the command ahead of us has been aborted. We won't end up 10850 * sending it to the FETD, and it's perfectly legal to resend a 10851 * command with the same tag number as long as the previous 10852 * instance of this tag number has been aborted somehow. 10853 */ 10854 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10855 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10856 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10857 && ((pending_io->io_hdr.nexus.targ_port == 10858 ooa_io->io_hdr.nexus.targ_port) 10859 && (pending_io->io_hdr.nexus.initid.id == 10860 ooa_io->io_hdr.nexus.initid.id)) 10861 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10862 return (CTL_ACTION_OVERLAP_TAG); 10863 10864 /* 10865 * If we get a head of queue tag, SAM-3 says that we should 10866 * immediately execute it. 10867 * 10868 * What happens if this command would normally block for some other 10869 * reason? e.g. a request sense with a head of queue tag 10870 * immediately after a write. Normally that would block, but this 10871 * will result in its getting executed immediately... 10872 * 10873 * We currently return "pass" instead of "skip", so we'll end up 10874 * going through the rest of the queue to check for overlapped tags. 10875 * 10876 * XXX KDM check for other types of blockage first?? 10877 */ 10878 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10879 return (CTL_ACTION_PASS); 10880 10881 /* 10882 * Ordered tags have to block until all items ahead of them 10883 * have completed. If we get called with an ordered tag, we always 10884 * block, if something else is ahead of us in the queue. 10885 */ 10886 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10887 return (CTL_ACTION_BLOCK); 10888 10889 /* 10890 * Simple tags get blocked until all head of queue and ordered tags 10891 * ahead of them have completed. I'm lumping untagged commands in 10892 * with simple tags here. XXX KDM is that the right thing to do? 10893 */ 10894 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10895 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10896 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10897 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10898 return (CTL_ACTION_BLOCK); 10899 10900 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10901 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10902 10903 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10904 10905 switch (serialize_row[pending_entry->seridx]) { 10906 case CTL_SER_BLOCK: 10907 return (CTL_ACTION_BLOCK); 10908 case CTL_SER_EXTENT: 10909 return (ctl_extent_check(pending_io, ooa_io)); 10910 case CTL_SER_EXTENTOPT: 10911 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10912 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10913 return (ctl_extent_check(pending_io, ooa_io)); 10914 /* FALLTHROUGH */ 10915 case CTL_SER_PASS: 10916 return (CTL_ACTION_PASS); 10917 case CTL_SER_BLOCKOPT: 10918 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10919 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10920 return (CTL_ACTION_BLOCK); 10921 return (CTL_ACTION_PASS); 10922 case CTL_SER_SKIP: 10923 return (CTL_ACTION_SKIP); 10924 default: 10925 panic("invalid serialization value %d", 10926 serialize_row[pending_entry->seridx]); 10927 } 10928 10929 return (CTL_ACTION_ERROR); 10930} 10931 10932/* 10933 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10934 * Assumptions: 10935 * - pending_io is generally either incoming, or on the blocked queue 10936 * - starting I/O is the I/O we want to start the check with. 10937 */ 10938static ctl_action 10939ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10940 union ctl_io *starting_io) 10941{ 10942 union ctl_io *ooa_io; 10943 ctl_action action; 10944 10945 mtx_assert(&lun->lun_lock, MA_OWNED); 10946 10947 /* 10948 * Run back along the OOA queue, starting with the current 10949 * blocked I/O and going through every I/O before it on the 10950 * queue. If starting_io is NULL, we'll just end up returning 10951 * CTL_ACTION_PASS. 10952 */ 10953 for (ooa_io = starting_io; ooa_io != NULL; 10954 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10955 ooa_links)){ 10956 10957 /* 10958 * This routine just checks to see whether 10959 * cur_blocked is blocked by ooa_io, which is ahead 10960 * of it in the queue. It doesn't queue/dequeue 10961 * cur_blocked. 10962 */ 10963 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10964 switch (action) { 10965 case CTL_ACTION_BLOCK: 10966 case CTL_ACTION_OVERLAP: 10967 case CTL_ACTION_OVERLAP_TAG: 10968 case CTL_ACTION_SKIP: 10969 case CTL_ACTION_ERROR: 10970 return (action); 10971 break; /* NOTREACHED */ 10972 case CTL_ACTION_PASS: 10973 break; 10974 default: 10975 panic("invalid action %d", action); 10976 break; /* NOTREACHED */ 10977 } 10978 } 10979 10980 return (CTL_ACTION_PASS); 10981} 10982 10983/* 10984 * Assumptions: 10985 * - An I/O has just completed, and has been removed from the per-LUN OOA 10986 * queue, so some items on the blocked queue may now be unblocked. 10987 */ 10988static int 10989ctl_check_blocked(struct ctl_lun *lun) 10990{ 10991 union ctl_io *cur_blocked, *next_blocked; 10992 10993 mtx_assert(&lun->lun_lock, MA_OWNED); 10994 10995 /* 10996 * Run forward from the head of the blocked queue, checking each 10997 * entry against the I/Os prior to it on the OOA queue to see if 10998 * there is still any blockage. 10999 * 11000 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11001 * with our removing a variable on it while it is traversing the 11002 * list. 11003 */ 11004 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11005 cur_blocked != NULL; cur_blocked = next_blocked) { 11006 union ctl_io *prev_ooa; 11007 ctl_action action; 11008 11009 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11010 blocked_links); 11011 11012 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11013 ctl_ooaq, ooa_links); 11014 11015 /* 11016 * If cur_blocked happens to be the first item in the OOA 11017 * queue now, prev_ooa will be NULL, and the action 11018 * returned will just be CTL_ACTION_PASS. 11019 */ 11020 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11021 11022 switch (action) { 11023 case CTL_ACTION_BLOCK: 11024 /* Nothing to do here, still blocked */ 11025 break; 11026 case CTL_ACTION_OVERLAP: 11027 case CTL_ACTION_OVERLAP_TAG: 11028 /* 11029 * This shouldn't happen! In theory we've already 11030 * checked this command for overlap... 11031 */ 11032 break; 11033 case CTL_ACTION_PASS: 11034 case CTL_ACTION_SKIP: { 11035 struct ctl_softc *softc; 11036 const struct ctl_cmd_entry *entry; 11037 int isc_retval; 11038 11039 /* 11040 * The skip case shouldn't happen, this transaction 11041 * should have never made it onto the blocked queue. 11042 */ 11043 /* 11044 * This I/O is no longer blocked, we can remove it 11045 * from the blocked queue. Since this is a TAILQ 11046 * (doubly linked list), we can do O(1) removals 11047 * from any place on the list. 11048 */ 11049 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11050 blocked_links); 11051 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11052 11053 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11054 /* 11055 * Need to send IO back to original side to 11056 * run 11057 */ 11058 union ctl_ha_msg msg_info; 11059 11060 msg_info.hdr.original_sc = 11061 cur_blocked->io_hdr.original_sc; 11062 msg_info.hdr.serializing_sc = cur_blocked; 11063 msg_info.hdr.msg_type = CTL_MSG_R2R; 11064 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11065 &msg_info, sizeof(msg_info), 0)) > 11066 CTL_HA_STATUS_SUCCESS) { 11067 printf("CTL:Check Blocked error from " 11068 "ctl_ha_msg_send %d\n", 11069 isc_retval); 11070 } 11071 break; 11072 } 11073 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11074 softc = control_softc; 11075 11076 /* 11077 * Check this I/O for LUN state changes that may 11078 * have happened while this command was blocked. 11079 * The LUN state may have been changed by a command 11080 * ahead of us in the queue, so we need to re-check 11081 * for any states that can be caused by SCSI 11082 * commands. 11083 */ 11084 if (ctl_scsiio_lun_check(softc, lun, entry, 11085 &cur_blocked->scsiio) == 0) { 11086 cur_blocked->io_hdr.flags |= 11087 CTL_FLAG_IS_WAS_ON_RTR; 11088 ctl_enqueue_rtr(cur_blocked); 11089 } else 11090 ctl_done(cur_blocked); 11091 break; 11092 } 11093 default: 11094 /* 11095 * This probably shouldn't happen -- we shouldn't 11096 * get CTL_ACTION_ERROR, or anything else. 11097 */ 11098 break; 11099 } 11100 } 11101 11102 return (CTL_RETVAL_COMPLETE); 11103} 11104 11105/* 11106 * This routine (with one exception) checks LUN flags that can be set by 11107 * commands ahead of us in the OOA queue. These flags have to be checked 11108 * when a command initially comes in, and when we pull a command off the 11109 * blocked queue and are preparing to execute it. The reason we have to 11110 * check these flags for commands on the blocked queue is that the LUN 11111 * state may have been changed by a command ahead of us while we're on the 11112 * blocked queue. 11113 * 11114 * Ordering is somewhat important with these checks, so please pay 11115 * careful attention to the placement of any new checks. 11116 */ 11117static int 11118ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11119 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11120{ 11121 int retval; 11122 uint32_t residx; 11123 11124 retval = 0; 11125 11126 mtx_assert(&lun->lun_lock, MA_OWNED); 11127 11128 /* 11129 * If this shelf is a secondary shelf controller, we have to reject 11130 * any media access commands. 11131 */ 11132 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11133 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11134 ctl_set_lun_standby(ctsio); 11135 retval = 1; 11136 goto bailout; 11137 } 11138 11139 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11140 if (lun->flags & CTL_LUN_READONLY) { 11141 ctl_set_sense(ctsio, /*current_error*/ 1, 11142 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11143 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11144 retval = 1; 11145 goto bailout; 11146 } 11147 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11148 .eca_and_aen & SCP_SWP) != 0) { 11149 ctl_set_sense(ctsio, /*current_error*/ 1, 11150 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11151 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11152 retval = 1; 11153 goto bailout; 11154 } 11155 } 11156 11157 /* 11158 * Check for a reservation conflict. If this command isn't allowed 11159 * even on reserved LUNs, and if this initiator isn't the one who 11160 * reserved us, reject the command with a reservation conflict. 11161 */ 11162 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11163 if ((lun->flags & CTL_LUN_RESERVED) 11164 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11165 if (lun->res_idx != residx) { 11166 ctl_set_reservation_conflict(ctsio); 11167 retval = 1; 11168 goto bailout; 11169 } 11170 } 11171 11172 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11173 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11174 /* No reservation or command is allowed. */; 11175 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11176 (lun->res_type == SPR_TYPE_WR_EX || 11177 lun->res_type == SPR_TYPE_WR_EX_RO || 11178 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11179 /* The command is allowed for Write Exclusive resv. */; 11180 } else { 11181 /* 11182 * if we aren't registered or it's a res holder type 11183 * reservation and this isn't the res holder then set a 11184 * conflict. 11185 */ 11186 if (ctl_get_prkey(lun, residx) == 0 11187 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11188 ctl_set_reservation_conflict(ctsio); 11189 retval = 1; 11190 goto bailout; 11191 } 11192 11193 } 11194 11195 if ((lun->flags & CTL_LUN_OFFLINE) 11196 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11197 ctl_set_lun_not_ready(ctsio); 11198 retval = 1; 11199 goto bailout; 11200 } 11201 11202 /* 11203 * If the LUN is stopped, see if this particular command is allowed 11204 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11205 */ 11206 if ((lun->flags & CTL_LUN_STOPPED) 11207 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11208 /* "Logical unit not ready, initializing cmd. required" */ 11209 ctl_set_lun_stopped(ctsio); 11210 retval = 1; 11211 goto bailout; 11212 } 11213 11214 if ((lun->flags & CTL_LUN_INOPERABLE) 11215 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11216 /* "Medium format corrupted" */ 11217 ctl_set_medium_format_corrupted(ctsio); 11218 retval = 1; 11219 goto bailout; 11220 } 11221 11222bailout: 11223 return (retval); 11224 11225} 11226 11227static void 11228ctl_failover_io(union ctl_io *io, int have_lock) 11229{ 11230 ctl_set_busy(&io->scsiio); 11231 ctl_done(io); 11232} 11233 11234static void 11235ctl_failover(void) 11236{ 11237 struct ctl_lun *lun; 11238 struct ctl_softc *ctl_softc; 11239 union ctl_io *next_io, *pending_io; 11240 union ctl_io *io; 11241 int lun_idx; 11242 11243 ctl_softc = control_softc; 11244 11245 mtx_lock(&ctl_softc->ctl_lock); 11246 /* 11247 * Remove any cmds from the other SC from the rtr queue. These 11248 * will obviously only be for LUNs for which we're the primary. 11249 * We can't send status or get/send data for these commands. 11250 * Since they haven't been executed yet, we can just remove them. 11251 * We'll either abort them or delete them below, depending on 11252 * which HA mode we're in. 11253 */ 11254#ifdef notyet 11255 mtx_lock(&ctl_softc->queue_lock); 11256 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11257 io != NULL; io = next_io) { 11258 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11259 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11260 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11261 ctl_io_hdr, links); 11262 } 11263 mtx_unlock(&ctl_softc->queue_lock); 11264#endif 11265 11266 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11267 lun = ctl_softc->ctl_luns[lun_idx]; 11268 if (lun==NULL) 11269 continue; 11270 11271 /* 11272 * Processor LUNs are primary on both sides. 11273 * XXX will this always be true? 11274 */ 11275 if (lun->be_lun->lun_type == T_PROCESSOR) 11276 continue; 11277 11278 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11279 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11280 printf("FAILOVER: primary lun %d\n", lun_idx); 11281 /* 11282 * Remove all commands from the other SC. First from the 11283 * blocked queue then from the ooa queue. Once we have 11284 * removed them. Call ctl_check_blocked to see if there 11285 * is anything that can run. 11286 */ 11287 for (io = (union ctl_io *)TAILQ_FIRST( 11288 &lun->blocked_queue); io != NULL; io = next_io) { 11289 11290 next_io = (union ctl_io *)TAILQ_NEXT( 11291 &io->io_hdr, blocked_links); 11292 11293 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11294 TAILQ_REMOVE(&lun->blocked_queue, 11295 &io->io_hdr,blocked_links); 11296 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11297 TAILQ_REMOVE(&lun->ooa_queue, 11298 &io->io_hdr, ooa_links); 11299 11300 ctl_free_io(io); 11301 } 11302 } 11303 11304 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11305 io != NULL; io = next_io) { 11306 11307 next_io = (union ctl_io *)TAILQ_NEXT( 11308 &io->io_hdr, ooa_links); 11309 11310 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11311 11312 TAILQ_REMOVE(&lun->ooa_queue, 11313 &io->io_hdr, 11314 ooa_links); 11315 11316 ctl_free_io(io); 11317 } 11318 } 11319 ctl_check_blocked(lun); 11320 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11321 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11322 11323 printf("FAILOVER: primary lun %d\n", lun_idx); 11324 /* 11325 * Abort all commands from the other SC. We can't 11326 * send status back for them now. These should get 11327 * cleaned up when they are completed or come out 11328 * for a datamove operation. 11329 */ 11330 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11331 io != NULL; io = next_io) { 11332 next_io = (union ctl_io *)TAILQ_NEXT( 11333 &io->io_hdr, ooa_links); 11334 11335 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11336 io->io_hdr.flags |= CTL_FLAG_ABORT; 11337 } 11338 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11339 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11340 11341 printf("FAILOVER: secondary lun %d\n", lun_idx); 11342 11343 lun->flags |= CTL_LUN_PRIMARY_SC; 11344 11345 /* 11346 * We send all I/O that was sent to this controller 11347 * and redirected to the other side back with 11348 * busy status, and have the initiator retry it. 11349 * Figuring out how much data has been transferred, 11350 * etc. and picking up where we left off would be 11351 * very tricky. 11352 * 11353 * XXX KDM need to remove I/O from the blocked 11354 * queue as well! 11355 */ 11356 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11357 &lun->ooa_queue); pending_io != NULL; 11358 pending_io = next_io) { 11359 11360 next_io = (union ctl_io *)TAILQ_NEXT( 11361 &pending_io->io_hdr, ooa_links); 11362 11363 pending_io->io_hdr.flags &= 11364 ~CTL_FLAG_SENT_2OTHER_SC; 11365 11366 if (pending_io->io_hdr.flags & 11367 CTL_FLAG_IO_ACTIVE) { 11368 pending_io->io_hdr.flags |= 11369 CTL_FLAG_FAILOVER; 11370 } else { 11371 ctl_set_busy(&pending_io->scsiio); 11372 ctl_done(pending_io); 11373 } 11374 } 11375 11376 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11377 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11378 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11379 printf("FAILOVER: secondary lun %d\n", lun_idx); 11380 /* 11381 * if the first io on the OOA is not on the RtR queue 11382 * add it. 11383 */ 11384 lun->flags |= CTL_LUN_PRIMARY_SC; 11385 11386 pending_io = (union ctl_io *)TAILQ_FIRST( 11387 &lun->ooa_queue); 11388 if (pending_io==NULL) { 11389 printf("Nothing on OOA queue\n"); 11390 continue; 11391 } 11392 11393 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11394 if ((pending_io->io_hdr.flags & 11395 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11396 pending_io->io_hdr.flags |= 11397 CTL_FLAG_IS_WAS_ON_RTR; 11398 ctl_enqueue_rtr(pending_io); 11399 } 11400#if 0 11401 else 11402 { 11403 printf("Tag 0x%04x is running\n", 11404 pending_io->scsiio.tag_num); 11405 } 11406#endif 11407 11408 next_io = (union ctl_io *)TAILQ_NEXT( 11409 &pending_io->io_hdr, ooa_links); 11410 for (pending_io=next_io; pending_io != NULL; 11411 pending_io = next_io) { 11412 pending_io->io_hdr.flags &= 11413 ~CTL_FLAG_SENT_2OTHER_SC; 11414 next_io = (union ctl_io *)TAILQ_NEXT( 11415 &pending_io->io_hdr, ooa_links); 11416 if (pending_io->io_hdr.flags & 11417 CTL_FLAG_IS_WAS_ON_RTR) { 11418#if 0 11419 printf("Tag 0x%04x is running\n", 11420 pending_io->scsiio.tag_num); 11421#endif 11422 continue; 11423 } 11424 11425 switch (ctl_check_ooa(lun, pending_io, 11426 (union ctl_io *)TAILQ_PREV( 11427 &pending_io->io_hdr, ctl_ooaq, 11428 ooa_links))) { 11429 11430 case CTL_ACTION_BLOCK: 11431 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11432 &pending_io->io_hdr, 11433 blocked_links); 11434 pending_io->io_hdr.flags |= 11435 CTL_FLAG_BLOCKED; 11436 break; 11437 case CTL_ACTION_PASS: 11438 case CTL_ACTION_SKIP: 11439 pending_io->io_hdr.flags |= 11440 CTL_FLAG_IS_WAS_ON_RTR; 11441 ctl_enqueue_rtr(pending_io); 11442 break; 11443 case CTL_ACTION_OVERLAP: 11444 ctl_set_overlapped_cmd( 11445 (struct ctl_scsiio *)pending_io); 11446 ctl_done(pending_io); 11447 break; 11448 case CTL_ACTION_OVERLAP_TAG: 11449 ctl_set_overlapped_tag( 11450 (struct ctl_scsiio *)pending_io, 11451 pending_io->scsiio.tag_num & 0xff); 11452 ctl_done(pending_io); 11453 break; 11454 case CTL_ACTION_ERROR: 11455 default: 11456 ctl_set_internal_failure( 11457 (struct ctl_scsiio *)pending_io, 11458 0, // sks_valid 11459 0); //retry count 11460 ctl_done(pending_io); 11461 break; 11462 } 11463 } 11464 11465 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11466 } else { 11467 panic("Unhandled HA mode failover, LUN flags = %#x, " 11468 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11469 } 11470 } 11471 ctl_pause_rtr = 0; 11472 mtx_unlock(&ctl_softc->ctl_lock); 11473} 11474 11475static int 11476ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11477{ 11478 struct ctl_lun *lun; 11479 const struct ctl_cmd_entry *entry; 11480 uint32_t initidx, targ_lun; 11481 int retval; 11482 11483 retval = 0; 11484 11485 lun = NULL; 11486 11487 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11488 if ((targ_lun < CTL_MAX_LUNS) 11489 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11490 /* 11491 * If the LUN is invalid, pretend that it doesn't exist. 11492 * It will go away as soon as all pending I/O has been 11493 * completed. 11494 */ 11495 mtx_lock(&lun->lun_lock); 11496 if (lun->flags & CTL_LUN_DISABLED) { 11497 mtx_unlock(&lun->lun_lock); 11498 lun = NULL; 11499 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11500 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11501 } else { 11502 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11503 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11504 lun->be_lun; 11505 if (lun->be_lun->lun_type == T_PROCESSOR) { 11506 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11507 } 11508 11509 /* 11510 * Every I/O goes into the OOA queue for a 11511 * particular LUN, and stays there until completion. 11512 */ 11513 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11514 ooa_links); 11515 } 11516 } else { 11517 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11518 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11519 } 11520 11521 /* Get command entry and return error if it is unsuppotyed. */ 11522 entry = ctl_validate_command(ctsio); 11523 if (entry == NULL) { 11524 if (lun) 11525 mtx_unlock(&lun->lun_lock); 11526 return (retval); 11527 } 11528 11529 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11530 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11531 11532 /* 11533 * Check to see whether we can send this command to LUNs that don't 11534 * exist. This should pretty much only be the case for inquiry 11535 * and request sense. Further checks, below, really require having 11536 * a LUN, so we can't really check the command anymore. Just put 11537 * it on the rtr queue. 11538 */ 11539 if (lun == NULL) { 11540 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11541 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11542 ctl_enqueue_rtr((union ctl_io *)ctsio); 11543 return (retval); 11544 } 11545 11546 ctl_set_unsupported_lun(ctsio); 11547 ctl_done((union ctl_io *)ctsio); 11548 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11549 return (retval); 11550 } else { 11551 /* 11552 * Make sure we support this particular command on this LUN. 11553 * e.g., we don't support writes to the control LUN. 11554 */ 11555 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11556 mtx_unlock(&lun->lun_lock); 11557 ctl_set_invalid_opcode(ctsio); 11558 ctl_done((union ctl_io *)ctsio); 11559 return (retval); 11560 } 11561 } 11562 11563 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11564 11565#ifdef CTL_WITH_CA 11566 /* 11567 * If we've got a request sense, it'll clear the contingent 11568 * allegiance condition. Otherwise, if we have a CA condition for 11569 * this initiator, clear it, because it sent down a command other 11570 * than request sense. 11571 */ 11572 if ((ctsio->cdb[0] != REQUEST_SENSE) 11573 && (ctl_is_set(lun->have_ca, initidx))) 11574 ctl_clear_mask(lun->have_ca, initidx); 11575#endif 11576 11577 /* 11578 * If the command has this flag set, it handles its own unit 11579 * attention reporting, we shouldn't do anything. Otherwise we 11580 * check for any pending unit attentions, and send them back to the 11581 * initiator. We only do this when a command initially comes in, 11582 * not when we pull it off the blocked queue. 11583 * 11584 * According to SAM-3, section 5.3.2, the order that things get 11585 * presented back to the host is basically unit attentions caused 11586 * by some sort of reset event, busy status, reservation conflicts 11587 * or task set full, and finally any other status. 11588 * 11589 * One issue here is that some of the unit attentions we report 11590 * don't fall into the "reset" category (e.g. "reported luns data 11591 * has changed"). So reporting it here, before the reservation 11592 * check, may be technically wrong. I guess the only thing to do 11593 * would be to check for and report the reset events here, and then 11594 * check for the other unit attention types after we check for a 11595 * reservation conflict. 11596 * 11597 * XXX KDM need to fix this 11598 */ 11599 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11600 ctl_ua_type ua_type; 11601 scsi_sense_data_type sense_format; 11602 11603 if (lun->flags & CTL_LUN_SENSE_DESC) 11604 sense_format = SSD_TYPE_DESC; 11605 else 11606 sense_format = SSD_TYPE_FIXED; 11607 11608 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11609 sense_format); 11610 if (ua_type != CTL_UA_NONE) { 11611 mtx_unlock(&lun->lun_lock); 11612 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11613 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11614 ctsio->sense_len = SSD_FULL_SIZE; 11615 ctl_done((union ctl_io *)ctsio); 11616 return (retval); 11617 } 11618 } 11619 11620 11621 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11622 mtx_unlock(&lun->lun_lock); 11623 ctl_done((union ctl_io *)ctsio); 11624 return (retval); 11625 } 11626 11627 /* 11628 * XXX CHD this is where we want to send IO to other side if 11629 * this LUN is secondary on this SC. We will need to make a copy 11630 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11631 * the copy we send as FROM_OTHER. 11632 * We also need to stuff the address of the original IO so we can 11633 * find it easily. Something similar will need be done on the other 11634 * side so when we are done we can find the copy. 11635 */ 11636 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11637 union ctl_ha_msg msg_info; 11638 int isc_retval; 11639 11640 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11641 11642 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11643 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11644#if 0 11645 printf("1. ctsio %p\n", ctsio); 11646#endif 11647 msg_info.hdr.serializing_sc = NULL; 11648 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11649 msg_info.scsi.tag_num = ctsio->tag_num; 11650 msg_info.scsi.tag_type = ctsio->tag_type; 11651 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11652 11653 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11654 11655 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11656 (void *)&msg_info, sizeof(msg_info), 0)) > 11657 CTL_HA_STATUS_SUCCESS) { 11658 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11659 isc_retval); 11660 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11661 } else { 11662#if 0 11663 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11664#endif 11665 } 11666 11667 /* 11668 * XXX KDM this I/O is off the incoming queue, but hasn't 11669 * been inserted on any other queue. We may need to come 11670 * up with a holding queue while we wait for serialization 11671 * so that we have an idea of what we're waiting for from 11672 * the other side. 11673 */ 11674 mtx_unlock(&lun->lun_lock); 11675 return (retval); 11676 } 11677 11678 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11679 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11680 ctl_ooaq, ooa_links))) { 11681 case CTL_ACTION_BLOCK: 11682 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11683 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11684 blocked_links); 11685 mtx_unlock(&lun->lun_lock); 11686 return (retval); 11687 case CTL_ACTION_PASS: 11688 case CTL_ACTION_SKIP: 11689 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11690 mtx_unlock(&lun->lun_lock); 11691 ctl_enqueue_rtr((union ctl_io *)ctsio); 11692 break; 11693 case CTL_ACTION_OVERLAP: 11694 mtx_unlock(&lun->lun_lock); 11695 ctl_set_overlapped_cmd(ctsio); 11696 ctl_done((union ctl_io *)ctsio); 11697 break; 11698 case CTL_ACTION_OVERLAP_TAG: 11699 mtx_unlock(&lun->lun_lock); 11700 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11701 ctl_done((union ctl_io *)ctsio); 11702 break; 11703 case CTL_ACTION_ERROR: 11704 default: 11705 mtx_unlock(&lun->lun_lock); 11706 ctl_set_internal_failure(ctsio, 11707 /*sks_valid*/ 0, 11708 /*retry_count*/ 0); 11709 ctl_done((union ctl_io *)ctsio); 11710 break; 11711 } 11712 return (retval); 11713} 11714 11715const struct ctl_cmd_entry * 11716ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11717{ 11718 const struct ctl_cmd_entry *entry; 11719 int service_action; 11720 11721 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11722 if (sa) 11723 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11724 if (entry->flags & CTL_CMD_FLAG_SA5) { 11725 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11726 entry = &((const struct ctl_cmd_entry *) 11727 entry->execute)[service_action]; 11728 } 11729 return (entry); 11730} 11731 11732const struct ctl_cmd_entry * 11733ctl_validate_command(struct ctl_scsiio *ctsio) 11734{ 11735 const struct ctl_cmd_entry *entry; 11736 int i, sa; 11737 uint8_t diff; 11738 11739 entry = ctl_get_cmd_entry(ctsio, &sa); 11740 if (entry->execute == NULL) { 11741 if (sa) 11742 ctl_set_invalid_field(ctsio, 11743 /*sks_valid*/ 1, 11744 /*command*/ 1, 11745 /*field*/ 1, 11746 /*bit_valid*/ 1, 11747 /*bit*/ 4); 11748 else 11749 ctl_set_invalid_opcode(ctsio); 11750 ctl_done((union ctl_io *)ctsio); 11751 return (NULL); 11752 } 11753 KASSERT(entry->length > 0, 11754 ("Not defined length for command 0x%02x/0x%02x", 11755 ctsio->cdb[0], ctsio->cdb[1])); 11756 for (i = 1; i < entry->length; i++) { 11757 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11758 if (diff == 0) 11759 continue; 11760 ctl_set_invalid_field(ctsio, 11761 /*sks_valid*/ 1, 11762 /*command*/ 1, 11763 /*field*/ i, 11764 /*bit_valid*/ 1, 11765 /*bit*/ fls(diff) - 1); 11766 ctl_done((union ctl_io *)ctsio); 11767 return (NULL); 11768 } 11769 return (entry); 11770} 11771 11772static int 11773ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11774{ 11775 11776 switch (lun_type) { 11777 case T_PROCESSOR: 11778 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11779 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11780 return (0); 11781 break; 11782 case T_DIRECT: 11783 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11784 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11785 return (0); 11786 break; 11787 default: 11788 return (0); 11789 } 11790 return (1); 11791} 11792 11793static int 11794ctl_scsiio(struct ctl_scsiio *ctsio) 11795{ 11796 int retval; 11797 const struct ctl_cmd_entry *entry; 11798 11799 retval = CTL_RETVAL_COMPLETE; 11800 11801 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11802 11803 entry = ctl_get_cmd_entry(ctsio, NULL); 11804 11805 /* 11806 * If this I/O has been aborted, just send it straight to 11807 * ctl_done() without executing it. 11808 */ 11809 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11810 ctl_done((union ctl_io *)ctsio); 11811 goto bailout; 11812 } 11813 11814 /* 11815 * All the checks should have been handled by ctl_scsiio_precheck(). 11816 * We should be clear now to just execute the I/O. 11817 */ 11818 retval = entry->execute(ctsio); 11819 11820bailout: 11821 return (retval); 11822} 11823 11824/* 11825 * Since we only implement one target right now, a bus reset simply resets 11826 * our single target. 11827 */ 11828static int 11829ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11830{ 11831 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11832} 11833 11834static int 11835ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11836 ctl_ua_type ua_type) 11837{ 11838 struct ctl_lun *lun; 11839 int retval; 11840 11841 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11842 union ctl_ha_msg msg_info; 11843 11844 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11845 msg_info.hdr.nexus = io->io_hdr.nexus; 11846 if (ua_type==CTL_UA_TARG_RESET) 11847 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11848 else 11849 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11850 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11851 msg_info.hdr.original_sc = NULL; 11852 msg_info.hdr.serializing_sc = NULL; 11853 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11854 (void *)&msg_info, sizeof(msg_info), 0)) { 11855 } 11856 } 11857 retval = 0; 11858 11859 mtx_lock(&ctl_softc->ctl_lock); 11860 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11861 retval += ctl_lun_reset(lun, io, ua_type); 11862 mtx_unlock(&ctl_softc->ctl_lock); 11863 11864 return (retval); 11865} 11866 11867/* 11868 * The LUN should always be set. The I/O is optional, and is used to 11869 * distinguish between I/Os sent by this initiator, and by other 11870 * initiators. We set unit attention for initiators other than this one. 11871 * SAM-3 is vague on this point. It does say that a unit attention should 11872 * be established for other initiators when a LUN is reset (see section 11873 * 5.7.3), but it doesn't specifically say that the unit attention should 11874 * be established for this particular initiator when a LUN is reset. Here 11875 * is the relevant text, from SAM-3 rev 8: 11876 * 11877 * 5.7.2 When a SCSI initiator port aborts its own tasks 11878 * 11879 * When a SCSI initiator port causes its own task(s) to be aborted, no 11880 * notification that the task(s) have been aborted shall be returned to 11881 * the SCSI initiator port other than the completion response for the 11882 * command or task management function action that caused the task(s) to 11883 * be aborted and notification(s) associated with related effects of the 11884 * action (e.g., a reset unit attention condition). 11885 * 11886 * XXX KDM for now, we're setting unit attention for all initiators. 11887 */ 11888static int 11889ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11890{ 11891 union ctl_io *xio; 11892#if 0 11893 uint32_t initidx; 11894#endif 11895#ifdef CTL_WITH_CA 11896 int i; 11897#endif 11898 11899 mtx_lock(&lun->lun_lock); 11900 /* 11901 * Run through the OOA queue and abort each I/O. 11902 */ 11903#if 0 11904 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11905#endif 11906 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11907 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11908 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11909 } 11910 11911 /* 11912 * This version sets unit attention for every 11913 */ 11914#if 0 11915 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11916 ctl_est_ua_all(lun, initidx, ua_type); 11917#else 11918 ctl_est_ua_all(lun, -1, ua_type); 11919#endif 11920 11921 /* 11922 * A reset (any kind, really) clears reservations established with 11923 * RESERVE/RELEASE. It does not clear reservations established 11924 * with PERSISTENT RESERVE OUT, but we don't support that at the 11925 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11926 * reservations made with the RESERVE/RELEASE commands, because 11927 * those commands are obsolete in SPC-3. 11928 */ 11929 lun->flags &= ~CTL_LUN_RESERVED; 11930 11931#ifdef CTL_WITH_CA 11932 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11933 ctl_clear_mask(lun->have_ca, i); 11934#endif 11935 mtx_unlock(&lun->lun_lock); 11936 11937 return (0); 11938} 11939 11940static void 11941ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11942 int other_sc) 11943{ 11944 union ctl_io *xio; 11945 11946 mtx_assert(&lun->lun_lock, MA_OWNED); 11947 11948 /* 11949 * Run through the OOA queue and attempt to find the given I/O. 11950 * The target port, initiator ID, tag type and tag number have to 11951 * match the values that we got from the initiator. If we have an 11952 * untagged command to abort, simply abort the first untagged command 11953 * we come to. We only allow one untagged command at a time of course. 11954 */ 11955 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11956 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11957 11958 if ((targ_port == UINT32_MAX || 11959 targ_port == xio->io_hdr.nexus.targ_port) && 11960 (init_id == UINT32_MAX || 11961 init_id == xio->io_hdr.nexus.initid.id)) { 11962 if (targ_port != xio->io_hdr.nexus.targ_port || 11963 init_id != xio->io_hdr.nexus.initid.id) 11964 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11965 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11966 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11967 union ctl_ha_msg msg_info; 11968 11969 msg_info.hdr.nexus = xio->io_hdr.nexus; 11970 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11971 msg_info.task.tag_num = xio->scsiio.tag_num; 11972 msg_info.task.tag_type = xio->scsiio.tag_type; 11973 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11974 msg_info.hdr.original_sc = NULL; 11975 msg_info.hdr.serializing_sc = NULL; 11976 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11977 (void *)&msg_info, sizeof(msg_info), 0); 11978 } 11979 } 11980 } 11981} 11982 11983static int 11984ctl_abort_task_set(union ctl_io *io) 11985{ 11986 struct ctl_softc *softc = control_softc; 11987 struct ctl_lun *lun; 11988 uint32_t targ_lun; 11989 11990 /* 11991 * Look up the LUN. 11992 */ 11993 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11994 mtx_lock(&softc->ctl_lock); 11995 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11996 lun = softc->ctl_luns[targ_lun]; 11997 else { 11998 mtx_unlock(&softc->ctl_lock); 11999 return (1); 12000 } 12001 12002 mtx_lock(&lun->lun_lock); 12003 mtx_unlock(&softc->ctl_lock); 12004 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12005 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12006 io->io_hdr.nexus.initid.id, 12007 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12008 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12009 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12010 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12011 } 12012 mtx_unlock(&lun->lun_lock); 12013 return (0); 12014} 12015 12016static int 12017ctl_i_t_nexus_reset(union ctl_io *io) 12018{ 12019 struct ctl_softc *softc = control_softc; 12020 struct ctl_lun *lun; 12021 uint32_t initidx, residx; 12022 12023 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12024 residx = ctl_get_resindex(&io->io_hdr.nexus); 12025 mtx_lock(&softc->ctl_lock); 12026 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12027 mtx_lock(&lun->lun_lock); 12028 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12029 io->io_hdr.nexus.initid.id, 12030 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12031#ifdef CTL_WITH_CA 12032 ctl_clear_mask(lun->have_ca, initidx); 12033#endif 12034 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12035 lun->flags &= ~CTL_LUN_RESERVED; 12036 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12037 mtx_unlock(&lun->lun_lock); 12038 } 12039 mtx_unlock(&softc->ctl_lock); 12040 return (0); 12041} 12042 12043static int 12044ctl_abort_task(union ctl_io *io) 12045{ 12046 union ctl_io *xio; 12047 struct ctl_lun *lun; 12048 struct ctl_softc *ctl_softc; 12049#if 0 12050 struct sbuf sb; 12051 char printbuf[128]; 12052#endif 12053 int found; 12054 uint32_t targ_lun; 12055 12056 ctl_softc = control_softc; 12057 found = 0; 12058 12059 /* 12060 * Look up the LUN. 12061 */ 12062 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12063 mtx_lock(&ctl_softc->ctl_lock); 12064 if ((targ_lun < CTL_MAX_LUNS) 12065 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12066 lun = ctl_softc->ctl_luns[targ_lun]; 12067 else { 12068 mtx_unlock(&ctl_softc->ctl_lock); 12069 return (1); 12070 } 12071 12072#if 0 12073 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12074 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12075#endif 12076 12077 mtx_lock(&lun->lun_lock); 12078 mtx_unlock(&ctl_softc->ctl_lock); 12079 /* 12080 * Run through the OOA queue and attempt to find the given I/O. 12081 * The target port, initiator ID, tag type and tag number have to 12082 * match the values that we got from the initiator. If we have an 12083 * untagged command to abort, simply abort the first untagged command 12084 * we come to. We only allow one untagged command at a time of course. 12085 */ 12086#if 0 12087 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12088#endif 12089 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12090 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12091#if 0 12092 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12093 12094 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12095 lun->lun, xio->scsiio.tag_num, 12096 xio->scsiio.tag_type, 12097 (xio->io_hdr.blocked_links.tqe_prev 12098 == NULL) ? "" : " BLOCKED", 12099 (xio->io_hdr.flags & 12100 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12101 (xio->io_hdr.flags & 12102 CTL_FLAG_ABORT) ? " ABORT" : "", 12103 (xio->io_hdr.flags & 12104 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12105 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12106 sbuf_finish(&sb); 12107 printf("%s\n", sbuf_data(&sb)); 12108#endif 12109 12110 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12111 && (xio->io_hdr.nexus.initid.id == 12112 io->io_hdr.nexus.initid.id)) { 12113 /* 12114 * If the abort says that the task is untagged, the 12115 * task in the queue must be untagged. Otherwise, 12116 * we just check to see whether the tag numbers 12117 * match. This is because the QLogic firmware 12118 * doesn't pass back the tag type in an abort 12119 * request. 12120 */ 12121#if 0 12122 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12123 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12124 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12125#endif 12126 /* 12127 * XXX KDM we've got problems with FC, because it 12128 * doesn't send down a tag type with aborts. So we 12129 * can only really go by the tag number... 12130 * This may cause problems with parallel SCSI. 12131 * Need to figure that out!! 12132 */ 12133 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12134 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12135 found = 1; 12136 if ((io->io_hdr.flags & 12137 CTL_FLAG_FROM_OTHER_SC) == 0 && 12138 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12139 union ctl_ha_msg msg_info; 12140 12141 io->io_hdr.flags |= 12142 CTL_FLAG_SENT_2OTHER_SC; 12143 msg_info.hdr.nexus = io->io_hdr.nexus; 12144 msg_info.task.task_action = 12145 CTL_TASK_ABORT_TASK; 12146 msg_info.task.tag_num = 12147 io->taskio.tag_num; 12148 msg_info.task.tag_type = 12149 io->taskio.tag_type; 12150 msg_info.hdr.msg_type = 12151 CTL_MSG_MANAGE_TASKS; 12152 msg_info.hdr.original_sc = NULL; 12153 msg_info.hdr.serializing_sc = NULL; 12154#if 0 12155 printf("Sent Abort to other side\n"); 12156#endif 12157 if (CTL_HA_STATUS_SUCCESS != 12158 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12159 (void *)&msg_info, 12160 sizeof(msg_info), 0)) { 12161 } 12162 } 12163#if 0 12164 printf("ctl_abort_task: found I/O to abort\n"); 12165#endif 12166 break; 12167 } 12168 } 12169 } 12170 mtx_unlock(&lun->lun_lock); 12171 12172 if (found == 0) { 12173 /* 12174 * This isn't really an error. It's entirely possible for 12175 * the abort and command completion to cross on the wire. 12176 * This is more of an informative/diagnostic error. 12177 */ 12178#if 0 12179 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12180 "%d:%d:%d:%d tag %d type %d\n", 12181 io->io_hdr.nexus.initid.id, 12182 io->io_hdr.nexus.targ_port, 12183 io->io_hdr.nexus.targ_target.id, 12184 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12185 io->taskio.tag_type); 12186#endif 12187 } 12188 return (0); 12189} 12190 12191static void 12192ctl_run_task(union ctl_io *io) 12193{ 12194 struct ctl_softc *ctl_softc = control_softc; 12195 int retval = 1; 12196 const char *task_desc; 12197 12198 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12199 12200 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12201 ("ctl_run_task: Unextected io_type %d\n", 12202 io->io_hdr.io_type)); 12203 12204 task_desc = ctl_scsi_task_string(&io->taskio); 12205 if (task_desc != NULL) { 12206#ifdef NEEDTOPORT 12207 csevent_log(CSC_CTL | CSC_SHELF_SW | 12208 CTL_TASK_REPORT, 12209 csevent_LogType_Trace, 12210 csevent_Severity_Information, 12211 csevent_AlertLevel_Green, 12212 csevent_FRU_Firmware, 12213 csevent_FRU_Unknown, 12214 "CTL: received task: %s",task_desc); 12215#endif 12216 } else { 12217#ifdef NEEDTOPORT 12218 csevent_log(CSC_CTL | CSC_SHELF_SW | 12219 CTL_TASK_REPORT, 12220 csevent_LogType_Trace, 12221 csevent_Severity_Information, 12222 csevent_AlertLevel_Green, 12223 csevent_FRU_Firmware, 12224 csevent_FRU_Unknown, 12225 "CTL: received unknown task " 12226 "type: %d (%#x)", 12227 io->taskio.task_action, 12228 io->taskio.task_action); 12229#endif 12230 } 12231 switch (io->taskio.task_action) { 12232 case CTL_TASK_ABORT_TASK: 12233 retval = ctl_abort_task(io); 12234 break; 12235 case CTL_TASK_ABORT_TASK_SET: 12236 case CTL_TASK_CLEAR_TASK_SET: 12237 retval = ctl_abort_task_set(io); 12238 break; 12239 case CTL_TASK_CLEAR_ACA: 12240 break; 12241 case CTL_TASK_I_T_NEXUS_RESET: 12242 retval = ctl_i_t_nexus_reset(io); 12243 break; 12244 case CTL_TASK_LUN_RESET: { 12245 struct ctl_lun *lun; 12246 uint32_t targ_lun; 12247 12248 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12249 mtx_lock(&ctl_softc->ctl_lock); 12250 if ((targ_lun < CTL_MAX_LUNS) 12251 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12252 lun = ctl_softc->ctl_luns[targ_lun]; 12253 else { 12254 mtx_unlock(&ctl_softc->ctl_lock); 12255 retval = 1; 12256 break; 12257 } 12258 12259 if (!(io->io_hdr.flags & 12260 CTL_FLAG_FROM_OTHER_SC)) { 12261 union ctl_ha_msg msg_info; 12262 12263 io->io_hdr.flags |= 12264 CTL_FLAG_SENT_2OTHER_SC; 12265 msg_info.hdr.msg_type = 12266 CTL_MSG_MANAGE_TASKS; 12267 msg_info.hdr.nexus = io->io_hdr.nexus; 12268 msg_info.task.task_action = 12269 CTL_TASK_LUN_RESET; 12270 msg_info.hdr.original_sc = NULL; 12271 msg_info.hdr.serializing_sc = NULL; 12272 if (CTL_HA_STATUS_SUCCESS != 12273 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12274 (void *)&msg_info, 12275 sizeof(msg_info), 0)) { 12276 } 12277 } 12278 12279 retval = ctl_lun_reset(lun, io, 12280 CTL_UA_LUN_RESET); 12281 mtx_unlock(&ctl_softc->ctl_lock); 12282 break; 12283 } 12284 case CTL_TASK_TARGET_RESET: 12285 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12286 break; 12287 case CTL_TASK_BUS_RESET: 12288 retval = ctl_bus_reset(ctl_softc, io); 12289 break; 12290 case CTL_TASK_PORT_LOGIN: 12291 break; 12292 case CTL_TASK_PORT_LOGOUT: 12293 break; 12294 default: 12295 printf("ctl_run_task: got unknown task management event %d\n", 12296 io->taskio.task_action); 12297 break; 12298 } 12299 if (retval == 0) 12300 io->io_hdr.status = CTL_SUCCESS; 12301 else 12302 io->io_hdr.status = CTL_ERROR; 12303 ctl_done(io); 12304} 12305 12306/* 12307 * For HA operation. Handle commands that come in from the other 12308 * controller. 12309 */ 12310static void 12311ctl_handle_isc(union ctl_io *io) 12312{ 12313 int free_io; 12314 struct ctl_lun *lun; 12315 struct ctl_softc *ctl_softc; 12316 uint32_t targ_lun; 12317 12318 ctl_softc = control_softc; 12319 12320 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12321 lun = ctl_softc->ctl_luns[targ_lun]; 12322 12323 switch (io->io_hdr.msg_type) { 12324 case CTL_MSG_SERIALIZE: 12325 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12326 break; 12327 case CTL_MSG_R2R: { 12328 const struct ctl_cmd_entry *entry; 12329 12330 /* 12331 * This is only used in SER_ONLY mode. 12332 */ 12333 free_io = 0; 12334 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12335 mtx_lock(&lun->lun_lock); 12336 if (ctl_scsiio_lun_check(ctl_softc, lun, 12337 entry, (struct ctl_scsiio *)io) != 0) { 12338 mtx_unlock(&lun->lun_lock); 12339 ctl_done(io); 12340 break; 12341 } 12342 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12343 mtx_unlock(&lun->lun_lock); 12344 ctl_enqueue_rtr(io); 12345 break; 12346 } 12347 case CTL_MSG_FINISH_IO: 12348 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12349 free_io = 0; 12350 ctl_done(io); 12351 } else { 12352 free_io = 1; 12353 mtx_lock(&lun->lun_lock); 12354 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12355 ooa_links); 12356 ctl_check_blocked(lun); 12357 mtx_unlock(&lun->lun_lock); 12358 } 12359 break; 12360 case CTL_MSG_PERS_ACTION: 12361 ctl_hndl_per_res_out_on_other_sc( 12362 (union ctl_ha_msg *)&io->presio.pr_msg); 12363 free_io = 1; 12364 break; 12365 case CTL_MSG_BAD_JUJU: 12366 free_io = 0; 12367 ctl_done(io); 12368 break; 12369 case CTL_MSG_DATAMOVE: 12370 /* Only used in XFER mode */ 12371 free_io = 0; 12372 ctl_datamove_remote(io); 12373 break; 12374 case CTL_MSG_DATAMOVE_DONE: 12375 /* Only used in XFER mode */ 12376 free_io = 0; 12377 io->scsiio.be_move_done(io); 12378 break; 12379 default: 12380 free_io = 1; 12381 printf("%s: Invalid message type %d\n", 12382 __func__, io->io_hdr.msg_type); 12383 break; 12384 } 12385 if (free_io) 12386 ctl_free_io(io); 12387 12388} 12389 12390 12391/* 12392 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12393 * there is no match. 12394 */ 12395static ctl_lun_error_pattern 12396ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12397{ 12398 const struct ctl_cmd_entry *entry; 12399 ctl_lun_error_pattern filtered_pattern, pattern; 12400 12401 pattern = desc->error_pattern; 12402 12403 /* 12404 * XXX KDM we need more data passed into this function to match a 12405 * custom pattern, and we actually need to implement custom pattern 12406 * matching. 12407 */ 12408 if (pattern & CTL_LUN_PAT_CMD) 12409 return (CTL_LUN_PAT_CMD); 12410 12411 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12412 return (CTL_LUN_PAT_ANY); 12413 12414 entry = ctl_get_cmd_entry(ctsio, NULL); 12415 12416 filtered_pattern = entry->pattern & pattern; 12417 12418 /* 12419 * If the user requested specific flags in the pattern (e.g. 12420 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12421 * flags. 12422 * 12423 * If the user did not specify any flags, it doesn't matter whether 12424 * or not the command supports the flags. 12425 */ 12426 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12427 (pattern & ~CTL_LUN_PAT_MASK)) 12428 return (CTL_LUN_PAT_NONE); 12429 12430 /* 12431 * If the user asked for a range check, see if the requested LBA 12432 * range overlaps with this command's LBA range. 12433 */ 12434 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12435 uint64_t lba1; 12436 uint64_t len1; 12437 ctl_action action; 12438 int retval; 12439 12440 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12441 if (retval != 0) 12442 return (CTL_LUN_PAT_NONE); 12443 12444 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12445 desc->lba_range.len); 12446 /* 12447 * A "pass" means that the LBA ranges don't overlap, so 12448 * this doesn't match the user's range criteria. 12449 */ 12450 if (action == CTL_ACTION_PASS) 12451 return (CTL_LUN_PAT_NONE); 12452 } 12453 12454 return (filtered_pattern); 12455} 12456 12457static void 12458ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12459{ 12460 struct ctl_error_desc *desc, *desc2; 12461 12462 mtx_assert(&lun->lun_lock, MA_OWNED); 12463 12464 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12465 ctl_lun_error_pattern pattern; 12466 /* 12467 * Check to see whether this particular command matches 12468 * the pattern in the descriptor. 12469 */ 12470 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12471 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12472 continue; 12473 12474 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12475 case CTL_LUN_INJ_ABORTED: 12476 ctl_set_aborted(&io->scsiio); 12477 break; 12478 case CTL_LUN_INJ_MEDIUM_ERR: 12479 ctl_set_medium_error(&io->scsiio); 12480 break; 12481 case CTL_LUN_INJ_UA: 12482 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12483 * OCCURRED */ 12484 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12485 break; 12486 case CTL_LUN_INJ_CUSTOM: 12487 /* 12488 * We're assuming the user knows what he is doing. 12489 * Just copy the sense information without doing 12490 * checks. 12491 */ 12492 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12493 ctl_min(sizeof(desc->custom_sense), 12494 sizeof(io->scsiio.sense_data))); 12495 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12496 io->scsiio.sense_len = SSD_FULL_SIZE; 12497 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12498 break; 12499 case CTL_LUN_INJ_NONE: 12500 default: 12501 /* 12502 * If this is an error injection type we don't know 12503 * about, clear the continuous flag (if it is set) 12504 * so it will get deleted below. 12505 */ 12506 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12507 break; 12508 } 12509 /* 12510 * By default, each error injection action is a one-shot 12511 */ 12512 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12513 continue; 12514 12515 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12516 12517 free(desc, M_CTL); 12518 } 12519} 12520 12521#ifdef CTL_IO_DELAY 12522static void 12523ctl_datamove_timer_wakeup(void *arg) 12524{ 12525 union ctl_io *io; 12526 12527 io = (union ctl_io *)arg; 12528 12529 ctl_datamove(io); 12530} 12531#endif /* CTL_IO_DELAY */ 12532 12533void 12534ctl_datamove(union ctl_io *io) 12535{ 12536 void (*fe_datamove)(union ctl_io *io); 12537 12538 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12539 12540 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12541 12542#ifdef CTL_TIME_IO 12543 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12544 char str[256]; 12545 char path_str[64]; 12546 struct sbuf sb; 12547 12548 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12549 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12550 12551 sbuf_cat(&sb, path_str); 12552 switch (io->io_hdr.io_type) { 12553 case CTL_IO_SCSI: 12554 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12555 sbuf_printf(&sb, "\n"); 12556 sbuf_cat(&sb, path_str); 12557 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12558 io->scsiio.tag_num, io->scsiio.tag_type); 12559 break; 12560 case CTL_IO_TASK: 12561 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12562 "Tag Type: %d\n", io->taskio.task_action, 12563 io->taskio.tag_num, io->taskio.tag_type); 12564 break; 12565 default: 12566 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12567 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12568 break; 12569 } 12570 sbuf_cat(&sb, path_str); 12571 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12572 (intmax_t)time_uptime - io->io_hdr.start_time); 12573 sbuf_finish(&sb); 12574 printf("%s", sbuf_data(&sb)); 12575 } 12576#endif /* CTL_TIME_IO */ 12577 12578#ifdef CTL_IO_DELAY 12579 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12580 struct ctl_lun *lun; 12581 12582 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12583 12584 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12585 } else { 12586 struct ctl_lun *lun; 12587 12588 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12589 if ((lun != NULL) 12590 && (lun->delay_info.datamove_delay > 0)) { 12591 struct callout *callout; 12592 12593 callout = (struct callout *)&io->io_hdr.timer_bytes; 12594 callout_init(callout, /*mpsafe*/ 1); 12595 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12596 callout_reset(callout, 12597 lun->delay_info.datamove_delay * hz, 12598 ctl_datamove_timer_wakeup, io); 12599 if (lun->delay_info.datamove_type == 12600 CTL_DELAY_TYPE_ONESHOT) 12601 lun->delay_info.datamove_delay = 0; 12602 return; 12603 } 12604 } 12605#endif 12606 12607 /* 12608 * This command has been aborted. Set the port status, so we fail 12609 * the data move. 12610 */ 12611 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12612 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12613 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12614 io->io_hdr.nexus.targ_port, 12615 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12616 io->io_hdr.nexus.targ_lun); 12617 io->io_hdr.port_status = 31337; 12618 /* 12619 * Note that the backend, in this case, will get the 12620 * callback in its context. In other cases it may get 12621 * called in the frontend's interrupt thread context. 12622 */ 12623 io->scsiio.be_move_done(io); 12624 return; 12625 } 12626 12627 /* Don't confuse frontend with zero length data move. */ 12628 if (io->scsiio.kern_data_len == 0) { 12629 io->scsiio.be_move_done(io); 12630 return; 12631 } 12632 12633 /* 12634 * If we're in XFER mode and this I/O is from the other shelf 12635 * controller, we need to send the DMA to the other side to 12636 * actually transfer the data to/from the host. In serialize only 12637 * mode the transfer happens below CTL and ctl_datamove() is only 12638 * called on the machine that originally received the I/O. 12639 */ 12640 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12641 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12642 union ctl_ha_msg msg; 12643 uint32_t sg_entries_sent; 12644 int do_sg_copy; 12645 int i; 12646 12647 memset(&msg, 0, sizeof(msg)); 12648 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12649 msg.hdr.original_sc = io->io_hdr.original_sc; 12650 msg.hdr.serializing_sc = io; 12651 msg.hdr.nexus = io->io_hdr.nexus; 12652 msg.dt.flags = io->io_hdr.flags; 12653 /* 12654 * We convert everything into a S/G list here. We can't 12655 * pass by reference, only by value between controllers. 12656 * So we can't pass a pointer to the S/G list, only as many 12657 * S/G entries as we can fit in here. If it's possible for 12658 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12659 * then we need to break this up into multiple transfers. 12660 */ 12661 if (io->scsiio.kern_sg_entries == 0) { 12662 msg.dt.kern_sg_entries = 1; 12663 /* 12664 * If this is in cached memory, flush the cache 12665 * before we send the DMA request to the other 12666 * controller. We want to do this in either the 12667 * read or the write case. The read case is 12668 * straightforward. In the write case, we want to 12669 * make sure nothing is in the local cache that 12670 * could overwrite the DMAed data. 12671 */ 12672 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12673 /* 12674 * XXX KDM use bus_dmamap_sync() here. 12675 */ 12676 } 12677 12678 /* 12679 * Convert to a physical address if this is a 12680 * virtual address. 12681 */ 12682 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12683 msg.dt.sg_list[0].addr = 12684 io->scsiio.kern_data_ptr; 12685 } else { 12686 /* 12687 * XXX KDM use busdma here! 12688 */ 12689#if 0 12690 msg.dt.sg_list[0].addr = (void *) 12691 vtophys(io->scsiio.kern_data_ptr); 12692#endif 12693 } 12694 12695 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12696 do_sg_copy = 0; 12697 } else { 12698 struct ctl_sg_entry *sgl; 12699 12700 do_sg_copy = 1; 12701 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12702 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12703 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12704 /* 12705 * XXX KDM use bus_dmamap_sync() here. 12706 */ 12707 } 12708 } 12709 12710 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12711 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12712 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12713 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12714 msg.dt.sg_sequence = 0; 12715 12716 /* 12717 * Loop until we've sent all of the S/G entries. On the 12718 * other end, we'll recompose these S/G entries into one 12719 * contiguous list before passing it to the 12720 */ 12721 for (sg_entries_sent = 0; sg_entries_sent < 12722 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12723 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12724 sizeof(msg.dt.sg_list[0])), 12725 msg.dt.kern_sg_entries - sg_entries_sent); 12726 12727 if (do_sg_copy != 0) { 12728 struct ctl_sg_entry *sgl; 12729 int j; 12730 12731 sgl = (struct ctl_sg_entry *) 12732 io->scsiio.kern_data_ptr; 12733 /* 12734 * If this is in cached memory, flush the cache 12735 * before we send the DMA request to the other 12736 * controller. We want to do this in either 12737 * the * read or the write case. The read 12738 * case is straightforward. In the write 12739 * case, we want to make sure nothing is 12740 * in the local cache that could overwrite 12741 * the DMAed data. 12742 */ 12743 12744 for (i = sg_entries_sent, j = 0; 12745 i < msg.dt.cur_sg_entries; i++, j++) { 12746 if ((io->io_hdr.flags & 12747 CTL_FLAG_NO_DATASYNC) == 0) { 12748 /* 12749 * XXX KDM use bus_dmamap_sync() 12750 */ 12751 } 12752 if ((io->io_hdr.flags & 12753 CTL_FLAG_BUS_ADDR) == 0) { 12754 /* 12755 * XXX KDM use busdma. 12756 */ 12757#if 0 12758 msg.dt.sg_list[j].addr =(void *) 12759 vtophys(sgl[i].addr); 12760#endif 12761 } else { 12762 msg.dt.sg_list[j].addr = 12763 sgl[i].addr; 12764 } 12765 msg.dt.sg_list[j].len = sgl[i].len; 12766 } 12767 } 12768 12769 sg_entries_sent += msg.dt.cur_sg_entries; 12770 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12771 msg.dt.sg_last = 1; 12772 else 12773 msg.dt.sg_last = 0; 12774 12775 /* 12776 * XXX KDM drop and reacquire the lock here? 12777 */ 12778 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12779 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12780 /* 12781 * XXX do something here. 12782 */ 12783 } 12784 12785 msg.dt.sent_sg_entries = sg_entries_sent; 12786 } 12787 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12788 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12789 ctl_failover_io(io, /*have_lock*/ 0); 12790 12791 } else { 12792 12793 /* 12794 * Lookup the fe_datamove() function for this particular 12795 * front end. 12796 */ 12797 fe_datamove = 12798 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12799 12800 fe_datamove(io); 12801 } 12802} 12803 12804static void 12805ctl_send_datamove_done(union ctl_io *io, int have_lock) 12806{ 12807 union ctl_ha_msg msg; 12808 int isc_status; 12809 12810 memset(&msg, 0, sizeof(msg)); 12811 12812 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12813 msg.hdr.original_sc = io; 12814 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12815 msg.hdr.nexus = io->io_hdr.nexus; 12816 msg.hdr.status = io->io_hdr.status; 12817 msg.scsi.tag_num = io->scsiio.tag_num; 12818 msg.scsi.tag_type = io->scsiio.tag_type; 12819 msg.scsi.scsi_status = io->scsiio.scsi_status; 12820 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12821 sizeof(io->scsiio.sense_data)); 12822 msg.scsi.sense_len = io->scsiio.sense_len; 12823 msg.scsi.sense_residual = io->scsiio.sense_residual; 12824 msg.scsi.fetd_status = io->io_hdr.port_status; 12825 msg.scsi.residual = io->scsiio.residual; 12826 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12827 12828 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12829 ctl_failover_io(io, /*have_lock*/ have_lock); 12830 return; 12831 } 12832 12833 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12834 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12835 /* XXX do something if this fails */ 12836 } 12837 12838} 12839 12840/* 12841 * The DMA to the remote side is done, now we need to tell the other side 12842 * we're done so it can continue with its data movement. 12843 */ 12844static void 12845ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12846{ 12847 union ctl_io *io; 12848 12849 io = rq->context; 12850 12851 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12852 printf("%s: ISC DMA write failed with error %d", __func__, 12853 rq->ret); 12854 ctl_set_internal_failure(&io->scsiio, 12855 /*sks_valid*/ 1, 12856 /*retry_count*/ rq->ret); 12857 } 12858 12859 ctl_dt_req_free(rq); 12860 12861 /* 12862 * In this case, we had to malloc the memory locally. Free it. 12863 */ 12864 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12865 int i; 12866 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12867 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12868 } 12869 /* 12870 * The data is in local and remote memory, so now we need to send 12871 * status (good or back) back to the other side. 12872 */ 12873 ctl_send_datamove_done(io, /*have_lock*/ 0); 12874} 12875 12876/* 12877 * We've moved the data from the host/controller into local memory. Now we 12878 * need to push it over to the remote controller's memory. 12879 */ 12880static int 12881ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12882{ 12883 int retval; 12884 12885 retval = 0; 12886 12887 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12888 ctl_datamove_remote_write_cb); 12889 12890 return (retval); 12891} 12892 12893static void 12894ctl_datamove_remote_write(union ctl_io *io) 12895{ 12896 int retval; 12897 void (*fe_datamove)(union ctl_io *io); 12898 12899 /* 12900 * - Get the data from the host/HBA into local memory. 12901 * - DMA memory from the local controller to the remote controller. 12902 * - Send status back to the remote controller. 12903 */ 12904 12905 retval = ctl_datamove_remote_sgl_setup(io); 12906 if (retval != 0) 12907 return; 12908 12909 /* Switch the pointer over so the FETD knows what to do */ 12910 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12911 12912 /* 12913 * Use a custom move done callback, since we need to send completion 12914 * back to the other controller, not to the backend on this side. 12915 */ 12916 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12917 12918 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12919 12920 fe_datamove(io); 12921 12922 return; 12923 12924} 12925 12926static int 12927ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12928{ 12929#if 0 12930 char str[256]; 12931 char path_str[64]; 12932 struct sbuf sb; 12933#endif 12934 12935 /* 12936 * In this case, we had to malloc the memory locally. Free it. 12937 */ 12938 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12939 int i; 12940 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12941 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12942 } 12943 12944#if 0 12945 scsi_path_string(io, path_str, sizeof(path_str)); 12946 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12947 sbuf_cat(&sb, path_str); 12948 scsi_command_string(&io->scsiio, NULL, &sb); 12949 sbuf_printf(&sb, "\n"); 12950 sbuf_cat(&sb, path_str); 12951 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12952 io->scsiio.tag_num, io->scsiio.tag_type); 12953 sbuf_cat(&sb, path_str); 12954 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12955 io->io_hdr.flags, io->io_hdr.status); 12956 sbuf_finish(&sb); 12957 printk("%s", sbuf_data(&sb)); 12958#endif 12959 12960 12961 /* 12962 * The read is done, now we need to send status (good or bad) back 12963 * to the other side. 12964 */ 12965 ctl_send_datamove_done(io, /*have_lock*/ 0); 12966 12967 return (0); 12968} 12969 12970static void 12971ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12972{ 12973 union ctl_io *io; 12974 void (*fe_datamove)(union ctl_io *io); 12975 12976 io = rq->context; 12977 12978 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12979 printf("%s: ISC DMA read failed with error %d", __func__, 12980 rq->ret); 12981 ctl_set_internal_failure(&io->scsiio, 12982 /*sks_valid*/ 1, 12983 /*retry_count*/ rq->ret); 12984 } 12985 12986 ctl_dt_req_free(rq); 12987 12988 /* Switch the pointer over so the FETD knows what to do */ 12989 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12990 12991 /* 12992 * Use a custom move done callback, since we need to send completion 12993 * back to the other controller, not to the backend on this side. 12994 */ 12995 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12996 12997 /* XXX KDM add checks like the ones in ctl_datamove? */ 12998 12999 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13000 13001 fe_datamove(io); 13002} 13003 13004static int 13005ctl_datamove_remote_sgl_setup(union ctl_io *io) 13006{ 13007 struct ctl_sg_entry *local_sglist, *remote_sglist; 13008 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13009 struct ctl_softc *softc; 13010 int retval; 13011 int i; 13012 13013 retval = 0; 13014 softc = control_softc; 13015 13016 local_sglist = io->io_hdr.local_sglist; 13017 local_dma_sglist = io->io_hdr.local_dma_sglist; 13018 remote_sglist = io->io_hdr.remote_sglist; 13019 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13020 13021 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13022 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13023 local_sglist[i].len = remote_sglist[i].len; 13024 13025 /* 13026 * XXX Detect the situation where the RS-level I/O 13027 * redirector on the other side has already read the 13028 * data off of the AOR RS on this side, and 13029 * transferred it to remote (mirror) memory on the 13030 * other side. Since we already have the data in 13031 * memory here, we just need to use it. 13032 * 13033 * XXX KDM this can probably be removed once we 13034 * get the cache device code in and take the 13035 * current AOR implementation out. 13036 */ 13037#ifdef NEEDTOPORT 13038 if ((remote_sglist[i].addr >= 13039 (void *)vtophys(softc->mirr->addr)) 13040 && (remote_sglist[i].addr < 13041 ((void *)vtophys(softc->mirr->addr) + 13042 CacheMirrorOffset))) { 13043 local_sglist[i].addr = remote_sglist[i].addr - 13044 CacheMirrorOffset; 13045 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13046 CTL_FLAG_DATA_IN) 13047 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13048 } else { 13049 local_sglist[i].addr = remote_sglist[i].addr + 13050 CacheMirrorOffset; 13051 } 13052#endif 13053#if 0 13054 printf("%s: local %p, remote %p, len %d\n", 13055 __func__, local_sglist[i].addr, 13056 remote_sglist[i].addr, local_sglist[i].len); 13057#endif 13058 } 13059 } else { 13060 uint32_t len_to_go; 13061 13062 /* 13063 * In this case, we don't have automatically allocated 13064 * memory for this I/O on this controller. This typically 13065 * happens with internal CTL I/O -- e.g. inquiry, mode 13066 * sense, etc. Anything coming from RAIDCore will have 13067 * a mirror area available. 13068 */ 13069 len_to_go = io->scsiio.kern_data_len; 13070 13071 /* 13072 * Clear the no datasync flag, we have to use malloced 13073 * buffers. 13074 */ 13075 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13076 13077 /* 13078 * The difficult thing here is that the size of the various 13079 * S/G segments may be different than the size from the 13080 * remote controller. That'll make it harder when DMAing 13081 * the data back to the other side. 13082 */ 13083 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13084 sizeof(io->io_hdr.remote_sglist[0])) && 13085 (len_to_go > 0); i++) { 13086 local_sglist[i].len = ctl_min(len_to_go, 131072); 13087 CTL_SIZE_8B(local_dma_sglist[i].len, 13088 local_sglist[i].len); 13089 local_sglist[i].addr = 13090 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13091 13092 local_dma_sglist[i].addr = local_sglist[i].addr; 13093 13094 if (local_sglist[i].addr == NULL) { 13095 int j; 13096 13097 printf("malloc failed for %zd bytes!", 13098 local_dma_sglist[i].len); 13099 for (j = 0; j < i; j++) { 13100 free(local_sglist[j].addr, M_CTL); 13101 } 13102 ctl_set_internal_failure(&io->scsiio, 13103 /*sks_valid*/ 1, 13104 /*retry_count*/ 4857); 13105 retval = 1; 13106 goto bailout_error; 13107 13108 } 13109 /* XXX KDM do we need a sync here? */ 13110 13111 len_to_go -= local_sglist[i].len; 13112 } 13113 /* 13114 * Reset the number of S/G entries accordingly. The 13115 * original number of S/G entries is available in 13116 * rem_sg_entries. 13117 */ 13118 io->scsiio.kern_sg_entries = i; 13119 13120#if 0 13121 printf("%s: kern_sg_entries = %d\n", __func__, 13122 io->scsiio.kern_sg_entries); 13123 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13124 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13125 local_sglist[i].addr, local_sglist[i].len, 13126 local_dma_sglist[i].len); 13127#endif 13128 } 13129 13130 13131 return (retval); 13132 13133bailout_error: 13134 13135 ctl_send_datamove_done(io, /*have_lock*/ 0); 13136 13137 return (retval); 13138} 13139 13140static int 13141ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13142 ctl_ha_dt_cb callback) 13143{ 13144 struct ctl_ha_dt_req *rq; 13145 struct ctl_sg_entry *remote_sglist, *local_sglist; 13146 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13147 uint32_t local_used, remote_used, total_used; 13148 int retval; 13149 int i, j; 13150 13151 retval = 0; 13152 13153 rq = ctl_dt_req_alloc(); 13154 13155 /* 13156 * If we failed to allocate the request, and if the DMA didn't fail 13157 * anyway, set busy status. This is just a resource allocation 13158 * failure. 13159 */ 13160 if ((rq == NULL) 13161 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13162 ctl_set_busy(&io->scsiio); 13163 13164 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13165 13166 if (rq != NULL) 13167 ctl_dt_req_free(rq); 13168 13169 /* 13170 * The data move failed. We need to return status back 13171 * to the other controller. No point in trying to DMA 13172 * data to the remote controller. 13173 */ 13174 13175 ctl_send_datamove_done(io, /*have_lock*/ 0); 13176 13177 retval = 1; 13178 13179 goto bailout; 13180 } 13181 13182 local_sglist = io->io_hdr.local_sglist; 13183 local_dma_sglist = io->io_hdr.local_dma_sglist; 13184 remote_sglist = io->io_hdr.remote_sglist; 13185 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13186 local_used = 0; 13187 remote_used = 0; 13188 total_used = 0; 13189 13190 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13191 rq->ret = CTL_HA_STATUS_SUCCESS; 13192 rq->context = io; 13193 callback(rq); 13194 goto bailout; 13195 } 13196 13197 /* 13198 * Pull/push the data over the wire from/to the other controller. 13199 * This takes into account the possibility that the local and 13200 * remote sglists may not be identical in terms of the size of 13201 * the elements and the number of elements. 13202 * 13203 * One fundamental assumption here is that the length allocated for 13204 * both the local and remote sglists is identical. Otherwise, we've 13205 * essentially got a coding error of some sort. 13206 */ 13207 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13208 int isc_ret; 13209 uint32_t cur_len, dma_length; 13210 uint8_t *tmp_ptr; 13211 13212 rq->id = CTL_HA_DATA_CTL; 13213 rq->command = command; 13214 rq->context = io; 13215 13216 /* 13217 * Both pointers should be aligned. But it is possible 13218 * that the allocation length is not. They should both 13219 * also have enough slack left over at the end, though, 13220 * to round up to the next 8 byte boundary. 13221 */ 13222 cur_len = ctl_min(local_sglist[i].len - local_used, 13223 remote_sglist[j].len - remote_used); 13224 13225 /* 13226 * In this case, we have a size issue and need to decrease 13227 * the size, except in the case where we actually have less 13228 * than 8 bytes left. In that case, we need to increase 13229 * the DMA length to get the last bit. 13230 */ 13231 if ((cur_len & 0x7) != 0) { 13232 if (cur_len > 0x7) { 13233 cur_len = cur_len - (cur_len & 0x7); 13234 dma_length = cur_len; 13235 } else { 13236 CTL_SIZE_8B(dma_length, cur_len); 13237 } 13238 13239 } else 13240 dma_length = cur_len; 13241 13242 /* 13243 * If we had to allocate memory for this I/O, instead of using 13244 * the non-cached mirror memory, we'll need to flush the cache 13245 * before trying to DMA to the other controller. 13246 * 13247 * We could end up doing this multiple times for the same 13248 * segment if we have a larger local segment than remote 13249 * segment. That shouldn't be an issue. 13250 */ 13251 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13252 /* 13253 * XXX KDM use bus_dmamap_sync() here. 13254 */ 13255 } 13256 13257 rq->size = dma_length; 13258 13259 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13260 tmp_ptr += local_used; 13261 13262 /* Use physical addresses when talking to ISC hardware */ 13263 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13264 /* XXX KDM use busdma */ 13265#if 0 13266 rq->local = vtophys(tmp_ptr); 13267#endif 13268 } else 13269 rq->local = tmp_ptr; 13270 13271 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13272 tmp_ptr += remote_used; 13273 rq->remote = tmp_ptr; 13274 13275 rq->callback = NULL; 13276 13277 local_used += cur_len; 13278 if (local_used >= local_sglist[i].len) { 13279 i++; 13280 local_used = 0; 13281 } 13282 13283 remote_used += cur_len; 13284 if (remote_used >= remote_sglist[j].len) { 13285 j++; 13286 remote_used = 0; 13287 } 13288 total_used += cur_len; 13289 13290 if (total_used >= io->scsiio.kern_data_len) 13291 rq->callback = callback; 13292 13293 if ((rq->size & 0x7) != 0) { 13294 printf("%s: warning: size %d is not on 8b boundary\n", 13295 __func__, rq->size); 13296 } 13297 if (((uintptr_t)rq->local & 0x7) != 0) { 13298 printf("%s: warning: local %p not on 8b boundary\n", 13299 __func__, rq->local); 13300 } 13301 if (((uintptr_t)rq->remote & 0x7) != 0) { 13302 printf("%s: warning: remote %p not on 8b boundary\n", 13303 __func__, rq->local); 13304 } 13305#if 0 13306 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13307 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13308 rq->local, rq->remote, rq->size); 13309#endif 13310 13311 isc_ret = ctl_dt_single(rq); 13312 if (isc_ret == CTL_HA_STATUS_WAIT) 13313 continue; 13314 13315 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13316 rq->ret = CTL_HA_STATUS_SUCCESS; 13317 } else { 13318 rq->ret = isc_ret; 13319 } 13320 callback(rq); 13321 goto bailout; 13322 } 13323 13324bailout: 13325 return (retval); 13326 13327} 13328 13329static void 13330ctl_datamove_remote_read(union ctl_io *io) 13331{ 13332 int retval; 13333 int i; 13334 13335 /* 13336 * This will send an error to the other controller in the case of a 13337 * failure. 13338 */ 13339 retval = ctl_datamove_remote_sgl_setup(io); 13340 if (retval != 0) 13341 return; 13342 13343 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13344 ctl_datamove_remote_read_cb); 13345 if ((retval != 0) 13346 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13347 /* 13348 * Make sure we free memory if there was an error.. The 13349 * ctl_datamove_remote_xfer() function will send the 13350 * datamove done message, or call the callback with an 13351 * error if there is a problem. 13352 */ 13353 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13354 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13355 } 13356 13357 return; 13358} 13359 13360/* 13361 * Process a datamove request from the other controller. This is used for 13362 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13363 * first. Once that is complete, the data gets DMAed into the remote 13364 * controller's memory. For reads, we DMA from the remote controller's 13365 * memory into our memory first, and then move it out to the FETD. 13366 */ 13367static void 13368ctl_datamove_remote(union ctl_io *io) 13369{ 13370 struct ctl_softc *softc; 13371 13372 softc = control_softc; 13373 13374 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13375 13376 /* 13377 * Note that we look for an aborted I/O here, but don't do some of 13378 * the other checks that ctl_datamove() normally does. 13379 * We don't need to run the datamove delay code, since that should 13380 * have been done if need be on the other controller. 13381 */ 13382 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13383 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13384 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13385 io->io_hdr.nexus.targ_port, 13386 io->io_hdr.nexus.targ_target.id, 13387 io->io_hdr.nexus.targ_lun); 13388 io->io_hdr.port_status = 31338; 13389 ctl_send_datamove_done(io, /*have_lock*/ 0); 13390 return; 13391 } 13392 13393 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13394 ctl_datamove_remote_write(io); 13395 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13396 ctl_datamove_remote_read(io); 13397 } else { 13398 union ctl_ha_msg msg; 13399 struct scsi_sense_data *sense; 13400 uint8_t sks[3]; 13401 int retry_count; 13402 13403 memset(&msg, 0, sizeof(msg)); 13404 13405 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13406 msg.hdr.status = CTL_SCSI_ERROR; 13407 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13408 13409 retry_count = 4243; 13410 13411 sense = &msg.scsi.sense_data; 13412 sks[0] = SSD_SCS_VALID; 13413 sks[1] = (retry_count >> 8) & 0xff; 13414 sks[2] = retry_count & 0xff; 13415 13416 /* "Internal target failure" */ 13417 scsi_set_sense_data(sense, 13418 /*sense_format*/ SSD_TYPE_NONE, 13419 /*current_error*/ 1, 13420 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13421 /*asc*/ 0x44, 13422 /*ascq*/ 0x00, 13423 /*type*/ SSD_ELEM_SKS, 13424 /*size*/ sizeof(sks), 13425 /*data*/ sks, 13426 SSD_ELEM_NONE); 13427 13428 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13429 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13430 ctl_failover_io(io, /*have_lock*/ 1); 13431 return; 13432 } 13433 13434 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13435 CTL_HA_STATUS_SUCCESS) { 13436 /* XXX KDM what to do if this fails? */ 13437 } 13438 return; 13439 } 13440 13441} 13442 13443static int 13444ctl_process_done(union ctl_io *io) 13445{ 13446 struct ctl_lun *lun; 13447 struct ctl_softc *ctl_softc = control_softc; 13448 void (*fe_done)(union ctl_io *io); 13449 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13450 13451 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13452 13453 fe_done = 13454 control_softc->ctl_ports[targ_port]->fe_done; 13455 13456#ifdef CTL_TIME_IO 13457 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13458 char str[256]; 13459 char path_str[64]; 13460 struct sbuf sb; 13461 13462 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13463 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13464 13465 sbuf_cat(&sb, path_str); 13466 switch (io->io_hdr.io_type) { 13467 case CTL_IO_SCSI: 13468 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13469 sbuf_printf(&sb, "\n"); 13470 sbuf_cat(&sb, path_str); 13471 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13472 io->scsiio.tag_num, io->scsiio.tag_type); 13473 break; 13474 case CTL_IO_TASK: 13475 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13476 "Tag Type: %d\n", io->taskio.task_action, 13477 io->taskio.tag_num, io->taskio.tag_type); 13478 break; 13479 default: 13480 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13481 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13482 break; 13483 } 13484 sbuf_cat(&sb, path_str); 13485 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13486 (intmax_t)time_uptime - io->io_hdr.start_time); 13487 sbuf_finish(&sb); 13488 printf("%s", sbuf_data(&sb)); 13489 } 13490#endif /* CTL_TIME_IO */ 13491 13492 switch (io->io_hdr.io_type) { 13493 case CTL_IO_SCSI: 13494 break; 13495 case CTL_IO_TASK: 13496 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13497 ctl_io_error_print(io, NULL); 13498 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13499 ctl_free_io(io); 13500 else 13501 fe_done(io); 13502 return (CTL_RETVAL_COMPLETE); 13503 default: 13504 panic("ctl_process_done: invalid io type %d\n", 13505 io->io_hdr.io_type); 13506 break; /* NOTREACHED */ 13507 } 13508 13509 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13510 if (lun == NULL) { 13511 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13512 io->io_hdr.nexus.targ_mapped_lun)); 13513 goto bailout; 13514 } 13515 13516 mtx_lock(&lun->lun_lock); 13517 13518 /* 13519 * Check to see if we have any errors to inject here. We only 13520 * inject errors for commands that don't already have errors set. 13521 */ 13522 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13523 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13524 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13525 ctl_inject_error(lun, io); 13526 13527 /* 13528 * XXX KDM how do we treat commands that aren't completed 13529 * successfully? 13530 * 13531 * XXX KDM should we also track I/O latency? 13532 */ 13533 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13534 io->io_hdr.io_type == CTL_IO_SCSI) { 13535#ifdef CTL_TIME_IO 13536 struct bintime cur_bt; 13537#endif 13538 int type; 13539 13540 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13541 CTL_FLAG_DATA_IN) 13542 type = CTL_STATS_READ; 13543 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13544 CTL_FLAG_DATA_OUT) 13545 type = CTL_STATS_WRITE; 13546 else 13547 type = CTL_STATS_NO_IO; 13548 13549 lun->stats.ports[targ_port].bytes[type] += 13550 io->scsiio.kern_total_len; 13551 lun->stats.ports[targ_port].operations[type]++; 13552#ifdef CTL_TIME_IO 13553 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13554 &io->io_hdr.dma_bt); 13555 lun->stats.ports[targ_port].num_dmas[type] += 13556 io->io_hdr.num_dmas; 13557 getbintime(&cur_bt); 13558 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13559 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13560#endif 13561 } 13562 13563 /* 13564 * Remove this from the OOA queue. 13565 */ 13566 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13567 13568 /* 13569 * Run through the blocked queue on this LUN and see if anything 13570 * has become unblocked, now that this transaction is done. 13571 */ 13572 ctl_check_blocked(lun); 13573 13574 /* 13575 * If the LUN has been invalidated, free it if there is nothing 13576 * left on its OOA queue. 13577 */ 13578 if ((lun->flags & CTL_LUN_INVALID) 13579 && TAILQ_EMPTY(&lun->ooa_queue)) { 13580 mtx_unlock(&lun->lun_lock); 13581 mtx_lock(&ctl_softc->ctl_lock); 13582 ctl_free_lun(lun); 13583 mtx_unlock(&ctl_softc->ctl_lock); 13584 } else 13585 mtx_unlock(&lun->lun_lock); 13586 13587bailout: 13588 13589 /* 13590 * If this command has been aborted, make sure we set the status 13591 * properly. The FETD is responsible for freeing the I/O and doing 13592 * whatever it needs to do to clean up its state. 13593 */ 13594 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13595 ctl_set_task_aborted(&io->scsiio); 13596 13597 /* 13598 * If enabled, print command error status. 13599 * We don't print UAs unless debugging was enabled explicitly. 13600 */ 13601 do { 13602 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13603 break; 13604 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13605 break; 13606 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13607 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13608 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13609 int error_code, sense_key, asc, ascq; 13610 13611 scsi_extract_sense_len(&io->scsiio.sense_data, 13612 io->scsiio.sense_len, &error_code, &sense_key, 13613 &asc, &ascq, /*show_errors*/ 0); 13614 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13615 break; 13616 } 13617 13618 ctl_io_error_print(io, NULL); 13619 } while (0); 13620 13621 /* 13622 * Tell the FETD or the other shelf controller we're done with this 13623 * command. Note that only SCSI commands get to this point. Task 13624 * management commands are completed above. 13625 * 13626 * We only send status to the other controller if we're in XFER 13627 * mode. In SER_ONLY mode, the I/O is done on the controller that 13628 * received the I/O (from CTL's perspective), and so the status is 13629 * generated there. 13630 * 13631 * XXX KDM if we hold the lock here, we could cause a deadlock 13632 * if the frontend comes back in in this context to queue 13633 * something. 13634 */ 13635 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13636 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13637 union ctl_ha_msg msg; 13638 13639 memset(&msg, 0, sizeof(msg)); 13640 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13641 msg.hdr.original_sc = io->io_hdr.original_sc; 13642 msg.hdr.nexus = io->io_hdr.nexus; 13643 msg.hdr.status = io->io_hdr.status; 13644 msg.scsi.scsi_status = io->scsiio.scsi_status; 13645 msg.scsi.tag_num = io->scsiio.tag_num; 13646 msg.scsi.tag_type = io->scsiio.tag_type; 13647 msg.scsi.sense_len = io->scsiio.sense_len; 13648 msg.scsi.sense_residual = io->scsiio.sense_residual; 13649 msg.scsi.residual = io->scsiio.residual; 13650 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13651 sizeof(io->scsiio.sense_data)); 13652 /* 13653 * We copy this whether or not this is an I/O-related 13654 * command. Otherwise, we'd have to go and check to see 13655 * whether it's a read/write command, and it really isn't 13656 * worth it. 13657 */ 13658 memcpy(&msg.scsi.lbalen, 13659 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13660 sizeof(msg.scsi.lbalen)); 13661 13662 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13663 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13664 /* XXX do something here */ 13665 } 13666 13667 ctl_free_io(io); 13668 } else 13669 fe_done(io); 13670 13671 return (CTL_RETVAL_COMPLETE); 13672} 13673 13674#ifdef CTL_WITH_CA 13675/* 13676 * Front end should call this if it doesn't do autosense. When the request 13677 * sense comes back in from the initiator, we'll dequeue this and send it. 13678 */ 13679int 13680ctl_queue_sense(union ctl_io *io) 13681{ 13682 struct ctl_lun *lun; 13683 struct ctl_softc *ctl_softc; 13684 uint32_t initidx, targ_lun; 13685 13686 ctl_softc = control_softc; 13687 13688 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13689 13690 /* 13691 * LUN lookup will likely move to the ctl_work_thread() once we 13692 * have our new queueing infrastructure (that doesn't put things on 13693 * a per-LUN queue initially). That is so that we can handle 13694 * things like an INQUIRY to a LUN that we don't have enabled. We 13695 * can't deal with that right now. 13696 */ 13697 mtx_lock(&ctl_softc->ctl_lock); 13698 13699 /* 13700 * If we don't have a LUN for this, just toss the sense 13701 * information. 13702 */ 13703 targ_lun = io->io_hdr.nexus.targ_lun; 13704 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13705 if ((targ_lun < CTL_MAX_LUNS) 13706 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13707 lun = ctl_softc->ctl_luns[targ_lun]; 13708 else 13709 goto bailout; 13710 13711 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13712 13713 mtx_lock(&lun->lun_lock); 13714 /* 13715 * Already have CA set for this LUN...toss the sense information. 13716 */ 13717 if (ctl_is_set(lun->have_ca, initidx)) { 13718 mtx_unlock(&lun->lun_lock); 13719 goto bailout; 13720 } 13721 13722 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13723 ctl_min(sizeof(lun->pending_sense[initidx]), 13724 sizeof(io->scsiio.sense_data))); 13725 ctl_set_mask(lun->have_ca, initidx); 13726 mtx_unlock(&lun->lun_lock); 13727 13728bailout: 13729 mtx_unlock(&ctl_softc->ctl_lock); 13730 13731 ctl_free_io(io); 13732 13733 return (CTL_RETVAL_COMPLETE); 13734} 13735#endif 13736 13737/* 13738 * Primary command inlet from frontend ports. All SCSI and task I/O 13739 * requests must go through this function. 13740 */ 13741int 13742ctl_queue(union ctl_io *io) 13743{ 13744 struct ctl_softc *ctl_softc; 13745 13746 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13747 13748 ctl_softc = control_softc; 13749 13750#ifdef CTL_TIME_IO 13751 io->io_hdr.start_time = time_uptime; 13752 getbintime(&io->io_hdr.start_bt); 13753#endif /* CTL_TIME_IO */ 13754 13755 /* Map FE-specific LUN ID into global one. */ 13756 io->io_hdr.nexus.targ_mapped_lun = 13757 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13758 13759 switch (io->io_hdr.io_type) { 13760 case CTL_IO_SCSI: 13761 case CTL_IO_TASK: 13762 if (ctl_debug & CTL_DEBUG_CDB) 13763 ctl_io_print(io); 13764 ctl_enqueue_incoming(io); 13765 break; 13766 default: 13767 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13768 return (EINVAL); 13769 } 13770 13771 return (CTL_RETVAL_COMPLETE); 13772} 13773 13774#ifdef CTL_IO_DELAY 13775static void 13776ctl_done_timer_wakeup(void *arg) 13777{ 13778 union ctl_io *io; 13779 13780 io = (union ctl_io *)arg; 13781 ctl_done(io); 13782} 13783#endif /* CTL_IO_DELAY */ 13784 13785void 13786ctl_done(union ctl_io *io) 13787{ 13788 struct ctl_softc *ctl_softc; 13789 13790 ctl_softc = control_softc; 13791 13792 /* 13793 * Enable this to catch duplicate completion issues. 13794 */ 13795#if 0 13796 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13797 printf("%s: type %d msg %d cdb %x iptl: " 13798 "%d:%d:%d:%d tag 0x%04x " 13799 "flag %#x status %x\n", 13800 __func__, 13801 io->io_hdr.io_type, 13802 io->io_hdr.msg_type, 13803 io->scsiio.cdb[0], 13804 io->io_hdr.nexus.initid.id, 13805 io->io_hdr.nexus.targ_port, 13806 io->io_hdr.nexus.targ_target.id, 13807 io->io_hdr.nexus.targ_lun, 13808 (io->io_hdr.io_type == 13809 CTL_IO_TASK) ? 13810 io->taskio.tag_num : 13811 io->scsiio.tag_num, 13812 io->io_hdr.flags, 13813 io->io_hdr.status); 13814 } else 13815 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13816#endif 13817 13818 /* 13819 * This is an internal copy of an I/O, and should not go through 13820 * the normal done processing logic. 13821 */ 13822 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13823 return; 13824 13825 /* 13826 * We need to send a msg to the serializing shelf to finish the IO 13827 * as well. We don't send a finish message to the other shelf if 13828 * this is a task management command. Task management commands 13829 * aren't serialized in the OOA queue, but rather just executed on 13830 * both shelf controllers for commands that originated on that 13831 * controller. 13832 */ 13833 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13834 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13835 union ctl_ha_msg msg_io; 13836 13837 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13838 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13839 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13840 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13841 } 13842 /* continue on to finish IO */ 13843 } 13844#ifdef CTL_IO_DELAY 13845 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13846 struct ctl_lun *lun; 13847 13848 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13849 13850 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13851 } else { 13852 struct ctl_lun *lun; 13853 13854 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13855 13856 if ((lun != NULL) 13857 && (lun->delay_info.done_delay > 0)) { 13858 struct callout *callout; 13859 13860 callout = (struct callout *)&io->io_hdr.timer_bytes; 13861 callout_init(callout, /*mpsafe*/ 1); 13862 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13863 callout_reset(callout, 13864 lun->delay_info.done_delay * hz, 13865 ctl_done_timer_wakeup, io); 13866 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13867 lun->delay_info.done_delay = 0; 13868 return; 13869 } 13870 } 13871#endif /* CTL_IO_DELAY */ 13872 13873 ctl_enqueue_done(io); 13874} 13875 13876int 13877ctl_isc(struct ctl_scsiio *ctsio) 13878{ 13879 struct ctl_lun *lun; 13880 int retval; 13881 13882 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13883 13884 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13885 13886 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13887 13888 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13889 13890 return (retval); 13891} 13892 13893 13894static void 13895ctl_work_thread(void *arg) 13896{ 13897 struct ctl_thread *thr = (struct ctl_thread *)arg; 13898 struct ctl_softc *softc = thr->ctl_softc; 13899 union ctl_io *io; 13900 int retval; 13901 13902 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13903 13904 for (;;) { 13905 retval = 0; 13906 13907 /* 13908 * We handle the queues in this order: 13909 * - ISC 13910 * - done queue (to free up resources, unblock other commands) 13911 * - RtR queue 13912 * - incoming queue 13913 * 13914 * If those queues are empty, we break out of the loop and 13915 * go to sleep. 13916 */ 13917 mtx_lock(&thr->queue_lock); 13918 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13919 if (io != NULL) { 13920 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13921 mtx_unlock(&thr->queue_lock); 13922 ctl_handle_isc(io); 13923 continue; 13924 } 13925 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13926 if (io != NULL) { 13927 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13928 /* clear any blocked commands, call fe_done */ 13929 mtx_unlock(&thr->queue_lock); 13930 retval = ctl_process_done(io); 13931 continue; 13932 } 13933 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13934 if (io != NULL) { 13935 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13936 mtx_unlock(&thr->queue_lock); 13937 if (io->io_hdr.io_type == CTL_IO_TASK) 13938 ctl_run_task(io); 13939 else 13940 ctl_scsiio_precheck(softc, &io->scsiio); 13941 continue; 13942 } 13943 if (!ctl_pause_rtr) { 13944 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13945 if (io != NULL) { 13946 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13947 mtx_unlock(&thr->queue_lock); 13948 retval = ctl_scsiio(&io->scsiio); 13949 if (retval != CTL_RETVAL_COMPLETE) 13950 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13951 continue; 13952 } 13953 } 13954 13955 /* Sleep until we have something to do. */ 13956 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13957 } 13958} 13959 13960static void 13961ctl_lun_thread(void *arg) 13962{ 13963 struct ctl_softc *softc = (struct ctl_softc *)arg; 13964 struct ctl_be_lun *be_lun; 13965 int retval; 13966 13967 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13968 13969 for (;;) { 13970 retval = 0; 13971 mtx_lock(&softc->ctl_lock); 13972 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13973 if (be_lun != NULL) { 13974 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13975 mtx_unlock(&softc->ctl_lock); 13976 ctl_create_lun(be_lun); 13977 continue; 13978 } 13979 13980 /* Sleep until we have something to do. */ 13981 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13982 PDROP | PRIBIO, "-", 0); 13983 } 13984} 13985 13986static void 13987ctl_thresh_thread(void *arg) 13988{ 13989 struct ctl_softc *softc = (struct ctl_softc *)arg; 13990 struct ctl_lun *lun; 13991 struct ctl_be_lun *be_lun; 13992 struct scsi_da_rw_recovery_page *rwpage; 13993 struct ctl_logical_block_provisioning_page *page; 13994 const char *attr; 13995 uint64_t thres, val; 13996 int i, e; 13997 13998 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13999 14000 for (;;) { 14001 mtx_lock(&softc->ctl_lock); 14002 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14003 be_lun = lun->be_lun; 14004 if ((lun->flags & CTL_LUN_DISABLED) || 14005 (lun->flags & CTL_LUN_OFFLINE) || 14006 lun->backend->lun_attr == NULL) 14007 continue; 14008 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14009 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14010 continue; 14011 e = 0; 14012 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14013 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14014 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14015 continue; 14016 thres = scsi_4btoul(page->descr[i].count); 14017 thres <<= CTL_LBP_EXPONENT; 14018 switch (page->descr[i].resource) { 14019 case 0x01: 14020 attr = "blocksavail"; 14021 break; 14022 case 0x02: 14023 attr = "blocksused"; 14024 break; 14025 case 0xf1: 14026 attr = "poolblocksavail"; 14027 break; 14028 case 0xf2: 14029 attr = "poolblocksused"; 14030 break; 14031 default: 14032 continue; 14033 } 14034 mtx_unlock(&softc->ctl_lock); // XXX 14035 val = lun->backend->lun_attr( 14036 lun->be_lun->be_lun, attr); 14037 mtx_lock(&softc->ctl_lock); 14038 if (val == UINT64_MAX) 14039 continue; 14040 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14041 == SLBPPD_ARMING_INC) 14042 e |= (val >= thres); 14043 else 14044 e |= (val <= thres); 14045 } 14046 mtx_lock(&lun->lun_lock); 14047 if (e) { 14048 if (lun->lasttpt == 0 || 14049 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14050 lun->lasttpt = time_uptime; 14051 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14052 } 14053 } else { 14054 lun->lasttpt = 0; 14055 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14056 } 14057 mtx_unlock(&lun->lun_lock); 14058 } 14059 mtx_unlock(&softc->ctl_lock); 14060 pause("-", CTL_LBP_PERIOD * hz); 14061 } 14062} 14063 14064static void 14065ctl_enqueue_incoming(union ctl_io *io) 14066{ 14067 struct ctl_softc *softc = control_softc; 14068 struct ctl_thread *thr; 14069 u_int idx; 14070 14071 idx = (io->io_hdr.nexus.targ_port * 127 + 14072 io->io_hdr.nexus.initid.id) % worker_threads; 14073 thr = &softc->threads[idx]; 14074 mtx_lock(&thr->queue_lock); 14075 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14076 mtx_unlock(&thr->queue_lock); 14077 wakeup(thr); 14078} 14079 14080static void 14081ctl_enqueue_rtr(union ctl_io *io) 14082{ 14083 struct ctl_softc *softc = control_softc; 14084 struct ctl_thread *thr; 14085 14086 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14087 mtx_lock(&thr->queue_lock); 14088 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14089 mtx_unlock(&thr->queue_lock); 14090 wakeup(thr); 14091} 14092 14093static void 14094ctl_enqueue_done(union ctl_io *io) 14095{ 14096 struct ctl_softc *softc = control_softc; 14097 struct ctl_thread *thr; 14098 14099 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14100 mtx_lock(&thr->queue_lock); 14101 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14102 mtx_unlock(&thr->queue_lock); 14103 wakeup(thr); 14104} 14105 14106static void 14107ctl_enqueue_isc(union ctl_io *io) 14108{ 14109 struct ctl_softc *softc = control_softc; 14110 struct ctl_thread *thr; 14111 14112 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14113 mtx_lock(&thr->queue_lock); 14114 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14115 mtx_unlock(&thr->queue_lock); 14116 wakeup(thr); 14117} 14118 14119/* Initialization and failover */ 14120 14121void 14122ctl_init_isc_msg(void) 14123{ 14124 printf("CTL: Still calling this thing\n"); 14125} 14126 14127/* 14128 * Init component 14129 * Initializes component into configuration defined by bootMode 14130 * (see hasc-sv.c) 14131 * returns hasc_Status: 14132 * OK 14133 * ERROR - fatal error 14134 */ 14135static ctl_ha_comp_status 14136ctl_isc_init(struct ctl_ha_component *c) 14137{ 14138 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14139 14140 c->status = ret; 14141 return ret; 14142} 14143 14144/* Start component 14145 * Starts component in state requested. If component starts successfully, 14146 * it must set its own state to the requestrd state 14147 * When requested state is HASC_STATE_HA, the component may refine it 14148 * by adding _SLAVE or _MASTER flags. 14149 * Currently allowed state transitions are: 14150 * UNKNOWN->HA - initial startup 14151 * UNKNOWN->SINGLE - initial startup when no parter detected 14152 * HA->SINGLE - failover 14153 * returns ctl_ha_comp_status: 14154 * OK - component successfully started in requested state 14155 * FAILED - could not start the requested state, failover may 14156 * be possible 14157 * ERROR - fatal error detected, no future startup possible 14158 */ 14159static ctl_ha_comp_status 14160ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14161{ 14162 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14163 14164 printf("%s: go\n", __func__); 14165 14166 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14167 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14168 control_softc->is_single = 0; 14169 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14170 != CTL_HA_STATUS_SUCCESS) { 14171 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14172 ret = CTL_HA_COMP_STATUS_ERROR; 14173 } 14174 } else if (CTL_HA_STATE_IS_HA(c->state) 14175 && CTL_HA_STATE_IS_SINGLE(state)){ 14176 // HA->SINGLE transition 14177 ctl_failover(); 14178 control_softc->is_single = 1; 14179 } else { 14180 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14181 c->state, state); 14182 ret = CTL_HA_COMP_STATUS_ERROR; 14183 } 14184 if (CTL_HA_STATE_IS_SINGLE(state)) 14185 control_softc->is_single = 1; 14186 14187 c->state = state; 14188 c->status = ret; 14189 return ret; 14190} 14191 14192/* 14193 * Quiesce component 14194 * The component must clear any error conditions (set status to OK) and 14195 * prepare itself to another Start call 14196 * returns ctl_ha_comp_status: 14197 * OK 14198 * ERROR 14199 */ 14200static ctl_ha_comp_status 14201ctl_isc_quiesce(struct ctl_ha_component *c) 14202{ 14203 int ret = CTL_HA_COMP_STATUS_OK; 14204 14205 ctl_pause_rtr = 1; 14206 c->status = ret; 14207 return ret; 14208} 14209 14210struct ctl_ha_component ctl_ha_component_ctlisc = 14211{ 14212 .name = "CTL ISC", 14213 .state = CTL_HA_STATE_UNKNOWN, 14214 .init = ctl_isc_init, 14215 .start = ctl_isc_start, 14216 .quiesce = ctl_isc_quiesce 14217}; 14218 14219/* 14220 * vim: ts=8 14221 */ 14222