ctl.c revision 288790
1230192Sdas/*- 2230192Sdas * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3230192Sdas * Copyright (c) 2012 The FreeBSD Foundation 4230192Sdas * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 5230192Sdas * All rights reserved. 6230192Sdas * 7230192Sdas * Portions of this software were developed by Edward Tomasz Napierala 8230192Sdas * under sponsorship from the FreeBSD Foundation. 9230192Sdas * 10230192Sdas * Redistribution and use in source and binary forms, with or without 11230192Sdas * modification, are permitted provided that the following conditions 12230192Sdas * are met: 13230192Sdas * 1. Redistributions of source code must retain the above copyright 14230192Sdas * notice, this list of conditions, and the following disclaimer, 15230192Sdas * without modification. 16230192Sdas * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17230192Sdas * substantially similar to the "NO WARRANTY" disclaimer below 18230192Sdas * ("Disclaimer") and any redistribution must be conditioned upon 19230192Sdas * including a substantially similar Disclaimer requirement for further 20230192Sdas * binary redistribution. 21230192Sdas * 22230192Sdas * NO WARRANTY 23230192Sdas * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24230192Sdas * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25230192Sdas * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26230192Sdas * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27230192Sdas * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28230192Sdas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29230192Sdas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30230192Sdas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31230192Sdas * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32230192Sdas * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33230192Sdas * POSSIBILITY OF SUCH DAMAGES. 34230192Sdas * 35230192Sdas * $Id$ 36230192Sdas */ 37230192Sdas/* 38230192Sdas * CAM Target Layer, a SCSI device emulation subsystem. 39230192Sdas * 40230192Sdas * Author: Ken Merry <ken@FreeBSD.org> 41230192Sdas */ 42230192Sdas 43230192Sdas#define _CTL_C 44230192Sdas 45230192Sdas#include <sys/cdefs.h> 46230192Sdas__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 288790 2015-10-05 10:54:06Z mav $"); 47230192Sdas 48230192Sdas#include <sys/param.h> 49230192Sdas#include <sys/systm.h> 50230192Sdas#include <sys/ctype.h> 51230192Sdas#include <sys/kernel.h> 52230192Sdas#include <sys/types.h> 53230192Sdas#include <sys/kthread.h> 54230192Sdas#include <sys/bio.h> 55230192Sdas#include <sys/fcntl.h> 56230192Sdas#include <sys/lock.h> 57230192Sdas#include <sys/module.h> 58230192Sdas#include <sys/mutex.h> 59230192Sdas#include <sys/condvar.h> 60230192Sdas#include <sys/malloc.h> 61230192Sdas#include <sys/conf.h> 62230192Sdas#include <sys/ioccom.h> 63230192Sdas#include <sys/queue.h> 64230192Sdas#include <sys/sbuf.h> 65230192Sdas#include <sys/smp.h> 66230192Sdas#include <sys/endian.h> 67230192Sdas#include <sys/sysctl.h> 68230192Sdas#include <vm/uma.h> 69230192Sdas 70230192Sdas#include <cam/cam.h> 71230192Sdas#include <cam/scsi/scsi_all.h> 72230192Sdas#include <cam/scsi/scsi_da.h> 73230192Sdas#include <cam/ctl/ctl_io.h> 74230192Sdas#include <cam/ctl/ctl.h> 75230192Sdas#include <cam/ctl/ctl_frontend.h> 76230192Sdas#include <cam/ctl/ctl_util.h> 77230192Sdas#include <cam/ctl/ctl_backend.h> 78230192Sdas#include <cam/ctl/ctl_ioctl.h> 79230192Sdas#include <cam/ctl/ctl_ha.h> 80230192Sdas#include <cam/ctl/ctl_private.h> 81230192Sdas#include <cam/ctl/ctl_debug.h> 82230192Sdas#include <cam/ctl/ctl_scsi_all.h> 83230192Sdas#include <cam/ctl/ctl_error.h> 84230192Sdas 85230192Sdasstruct ctl_softc *control_softc = NULL; 86230192Sdas 87230192Sdas/* 88230192Sdas * Template mode pages. 89230192Sdas */ 90230192Sdas 91230192Sdas/* 92230192Sdas * Note that these are default values only. The actual values will be 93230192Sdas * filled in when the user does a mode sense. 94230192Sdas */ 95230192Sdasconst static struct copan_debugconf_subpage debugconf_page_default = { 96230192Sdas DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 97230192Sdas DBGCNF_SUBPAGE_CODE, /* subpage */ 98230192Sdas {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 99230192Sdas (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 100230192Sdas DBGCNF_VERSION, /* page_version */ 101230192Sdas {CTL_TIME_IO_DEFAULT_SECS>>8, 102230192Sdas CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 103230192Sdas}; 104230192Sdas 105230192Sdasconst static struct copan_debugconf_subpage debugconf_page_changeable = { 106230192Sdas DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 107230192Sdas DBGCNF_SUBPAGE_CODE, /* subpage */ 108230192Sdas {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 109230192Sdas (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 110230192Sdas 0, /* page_version */ 111230192Sdas {0xff,0xff}, /* ctl_time_io_secs */ 112230192Sdas}; 113230192Sdas 114230192Sdasconst static struct scsi_da_rw_recovery_page rw_er_page_default = { 115230192Sdas /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 116230192Sdas /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 117230192Sdas /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 118230192Sdas /*read_retry_count*/0, 119230192Sdas /*correction_span*/0, 120230192Sdas /*head_offset_count*/0, 121230192Sdas /*data_strobe_offset_cnt*/0, 122230192Sdas /*byte8*/SMS_RWER_LBPERE, 123230192Sdas /*write_retry_count*/0, 124230192Sdas /*reserved2*/0, 125230192Sdas /*recovery_time_limit*/{0, 0}, 126230192Sdas}; 127230192Sdas 128230192Sdasconst static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 129230192Sdas /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 130230192Sdas /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 131230192Sdas /*byte3*/0, 132230192Sdas /*read_retry_count*/0, 133230192Sdas /*correction_span*/0, 134230192Sdas /*head_offset_count*/0, 135230192Sdas /*data_strobe_offset_cnt*/0, 136230192Sdas /*byte8*/0, 137230192Sdas /*write_retry_count*/0, 138230192Sdas /*reserved2*/0, 139230192Sdas /*recovery_time_limit*/{0, 0}, 140230192Sdas}; 141230192Sdas 142230192Sdasconst static struct scsi_format_page format_page_default = { 143230192Sdas /*page_code*/SMS_FORMAT_DEVICE_PAGE, 144230192Sdas /*page_length*/sizeof(struct scsi_format_page) - 2, 145230192Sdas /*tracks_per_zone*/ {0, 0}, 146230192Sdas /*alt_sectors_per_zone*/ {0, 0}, 147230192Sdas /*alt_tracks_per_zone*/ {0, 0}, 148230192Sdas /*alt_tracks_per_lun*/ {0, 0}, 149230192Sdas /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 150230192Sdas CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 151230192Sdas /*bytes_per_sector*/ {0, 0}, 152230192Sdas /*interleave*/ {0, 0}, 153230192Sdas /*track_skew*/ {0, 0}, 154230192Sdas /*cylinder_skew*/ {0, 0}, 155230192Sdas /*flags*/ SFP_HSEC, 156230192Sdas /*reserved*/ {0, 0, 0} 157230192Sdas}; 158230192Sdas 159261161Sandrewconst static struct scsi_format_page format_page_changeable = { 160230192Sdas /*page_code*/SMS_FORMAT_DEVICE_PAGE, 161230192Sdas /*page_length*/sizeof(struct scsi_format_page) - 2, 162230192Sdas /*tracks_per_zone*/ {0, 0}, 163230192Sdas /*alt_sectors_per_zone*/ {0, 0}, 164230192Sdas /*alt_tracks_per_zone*/ {0, 0}, 165230192Sdas /*alt_tracks_per_lun*/ {0, 0}, 166230192Sdas /*sectors_per_track*/ {0, 0}, 167230192Sdas /*bytes_per_sector*/ {0, 0}, 168261161Sandrew /*interleave*/ {0, 0}, 169230192Sdas /*track_skew*/ {0, 0}, 170230192Sdas /*cylinder_skew*/ {0, 0}, 171230192Sdas /*flags*/ 0, 172230192Sdas /*reserved*/ {0, 0, 0} 173230192Sdas}; 174230192Sdas 175230192Sdasconst static struct scsi_rigid_disk_page rigid_disk_page_default = { 176230192Sdas /*page_code*/SMS_RIGID_DISK_PAGE, 177261161Sandrew /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 178230192Sdas /*cylinders*/ {0, 0, 0}, 179230192Sdas /*heads*/ CTL_DEFAULT_HEADS, 180230192Sdas /*start_write_precomp*/ {0, 0, 0}, 181230192Sdas /*start_reduced_current*/ {0, 0, 0}, 182230192Sdas /*step_rate*/ {0, 0}, 183230192Sdas /*landing_zone_cylinder*/ {0, 0, 0}, 184230192Sdas /*rpl*/ SRDP_RPL_DISABLED, 185 /*rotational_offset*/ 0, 186 /*reserved1*/ 0, 187 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 188 CTL_DEFAULT_ROTATION_RATE & 0xff}, 189 /*reserved2*/ {0, 0} 190}; 191 192const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 193 /*page_code*/SMS_RIGID_DISK_PAGE, 194 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 195 /*cylinders*/ {0, 0, 0}, 196 /*heads*/ 0, 197 /*start_write_precomp*/ {0, 0, 0}, 198 /*start_reduced_current*/ {0, 0, 0}, 199 /*step_rate*/ {0, 0}, 200 /*landing_zone_cylinder*/ {0, 0, 0}, 201 /*rpl*/ 0, 202 /*rotational_offset*/ 0, 203 /*reserved1*/ 0, 204 /*rotation_rate*/ {0, 0}, 205 /*reserved2*/ {0, 0} 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_DEXCPT, 288 /*mrie*/0, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 0} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/0, 297 /*mrie*/0, 298 /*interval_timer*/{0, 0, 0, 0}, 299 /*report_count*/{0, 0, 0, 0} 300}; 301 302#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 303 304const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 305 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 306 /*subpage_code*/0x02, 307 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 308 /*flags*/0, 309 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 310 /*descr*/{}}, 311 {{/*flags*/0, 312 /*resource*/0x01, 313 /*reserved*/{0, 0}, 314 /*count*/{0, 0, 0, 0}}, 315 {/*flags*/0, 316 /*resource*/0x02, 317 /*reserved*/{0, 0}, 318 /*count*/{0, 0, 0, 0}}, 319 {/*flags*/0, 320 /*resource*/0xf1, 321 /*reserved*/{0, 0}, 322 /*count*/{0, 0, 0, 0}}, 323 {/*flags*/0, 324 /*resource*/0xf2, 325 /*reserved*/{0, 0}, 326 /*count*/{0, 0, 0, 0}} 327 } 328}; 329 330const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 331 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 332 /*subpage_code*/0x02, 333 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 334 /*flags*/0, 335 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 336 /*descr*/{}}, 337 {{/*flags*/0, 338 /*resource*/0, 339 /*reserved*/{0, 0}, 340 /*count*/{0, 0, 0, 0}}, 341 {/*flags*/0, 342 /*resource*/0, 343 /*reserved*/{0, 0}, 344 /*count*/{0, 0, 0, 0}}, 345 {/*flags*/0, 346 /*resource*/0, 347 /*reserved*/{0, 0}, 348 /*count*/{0, 0, 0, 0}}, 349 {/*flags*/0, 350 /*resource*/0, 351 /*reserved*/{0, 0}, 352 /*count*/{0, 0, 0, 0}} 353 } 354}; 355 356SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 357static int worker_threads = -1; 358TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 359SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 360 &worker_threads, 1, "Number of worker threads"); 361static int ctl_debug = CTL_DEBUG_NONE; 362TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 364 &ctl_debug, 0, "Enabled debug flags"); 365 366/* 367 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 368 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 369 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 370 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 371 */ 372#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 373 374static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 375 int param); 376static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 377static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 378static int ctl_init(void); 379void ctl_shutdown(void); 380static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 381static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 382static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 383static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 384 struct ctl_ooa *ooa_hdr, 385 struct ctl_ooa_entry *kern_entries); 386static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 387 struct thread *td); 388static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 389 struct ctl_be_lun *be_lun); 390static int ctl_free_lun(struct ctl_lun *lun); 391static void ctl_create_lun(struct ctl_be_lun *be_lun); 392static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 393 394static int ctl_do_mode_select(union ctl_io *io); 395static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 396 uint64_t res_key, uint64_t sa_res_key, 397 uint8_t type, uint32_t residx, 398 struct ctl_scsiio *ctsio, 399 struct scsi_per_res_out *cdb, 400 struct scsi_per_res_out_parms* param); 401static void ctl_pro_preempt_other(struct ctl_lun *lun, 402 union ctl_ha_msg *msg); 403static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 404static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 405static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 406static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 407static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 408static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 409static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 410 int alloc_len); 411static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 412 int alloc_len); 413static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 414static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 415static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 416static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 417static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 418static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 419 bool seq); 420static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 421static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 422 union ctl_io *pending_io, union ctl_io *ooa_io); 423static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 424 union ctl_io *starting_io); 425static int ctl_check_blocked(struct ctl_lun *lun); 426static int ctl_scsiio_lun_check(struct ctl_lun *lun, 427 const struct ctl_cmd_entry *entry, 428 struct ctl_scsiio *ctsio); 429static void ctl_failover_lun(struct ctl_lun *lun); 430static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 431 struct ctl_scsiio *ctsio); 432static int ctl_scsiio(struct ctl_scsiio *ctsio); 433 434static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 435static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 436 ctl_ua_type ua_type); 437static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 438 ctl_ua_type ua_type); 439static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 440static int ctl_abort_task(union ctl_io *io); 441static int ctl_abort_task_set(union ctl_io *io); 442static int ctl_query_task(union ctl_io *io, int task_set); 443static int ctl_i_t_nexus_reset(union ctl_io *io); 444static int ctl_query_async_event(union ctl_io *io); 445static void ctl_run_task(union ctl_io *io); 446#ifdef CTL_IO_DELAY 447static void ctl_datamove_timer_wakeup(void *arg); 448static void ctl_done_timer_wakeup(void *arg); 449#endif /* CTL_IO_DELAY */ 450 451static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 452static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 453static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 454static void ctl_datamove_remote_write(union ctl_io *io); 455static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 456static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 457static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 458static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 459 ctl_ha_dt_cb callback); 460static void ctl_datamove_remote_read(union ctl_io *io); 461static void ctl_datamove_remote(union ctl_io *io); 462static int ctl_process_done(union ctl_io *io); 463static void ctl_lun_thread(void *arg); 464static void ctl_thresh_thread(void *arg); 465static void ctl_work_thread(void *arg); 466static void ctl_enqueue_incoming(union ctl_io *io); 467static void ctl_enqueue_rtr(union ctl_io *io); 468static void ctl_enqueue_done(union ctl_io *io); 469static void ctl_enqueue_isc(union ctl_io *io); 470static const struct ctl_cmd_entry * 471 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 472static const struct ctl_cmd_entry * 473 ctl_validate_command(struct ctl_scsiio *ctsio); 474static int ctl_cmd_applicable(uint8_t lun_type, 475 const struct ctl_cmd_entry *entry); 476 477static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 478static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 479static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 480static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 481 482/* 483 * Load the serialization table. This isn't very pretty, but is probably 484 * the easiest way to do it. 485 */ 486#include "ctl_ser_table.c" 487 488/* 489 * We only need to define open, close and ioctl routines for this driver. 490 */ 491static struct cdevsw ctl_cdevsw = { 492 .d_version = D_VERSION, 493 .d_flags = 0, 494 .d_open = ctl_open, 495 .d_close = ctl_close, 496 .d_ioctl = ctl_ioctl, 497 .d_name = "ctl", 498}; 499 500 501MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 502 503static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 504 505static moduledata_t ctl_moduledata = { 506 "ctl", 507 ctl_module_event_handler, 508 NULL 509}; 510 511DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 512MODULE_VERSION(ctl, 1); 513 514static struct ctl_frontend ha_frontend = 515{ 516 .name = "ha", 517}; 518 519static void 520ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 521 union ctl_ha_msg *msg_info) 522{ 523 struct ctl_scsiio *ctsio; 524 525 if (msg_info->hdr.original_sc == NULL) { 526 printf("%s: original_sc == NULL!\n", __func__); 527 /* XXX KDM now what? */ 528 return; 529 } 530 531 ctsio = &msg_info->hdr.original_sc->scsiio; 532 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 533 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 534 ctsio->io_hdr.status = msg_info->hdr.status; 535 ctsio->scsi_status = msg_info->scsi.scsi_status; 536 ctsio->sense_len = msg_info->scsi.sense_len; 537 ctsio->sense_residual = msg_info->scsi.sense_residual; 538 ctsio->residual = msg_info->scsi.residual; 539 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 540 msg_info->scsi.sense_len); 541 ctl_enqueue_isc((union ctl_io *)ctsio); 542} 543 544static void 545ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 546 union ctl_ha_msg *msg_info) 547{ 548 struct ctl_scsiio *ctsio; 549 550 if (msg_info->hdr.serializing_sc == NULL) { 551 printf("%s: serializing_sc == NULL!\n", __func__); 552 /* XXX KDM now what? */ 553 return; 554 } 555 556 ctsio = &msg_info->hdr.serializing_sc->scsiio; 557 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 558 ctl_enqueue_isc((union ctl_io *)ctsio); 559} 560 561void 562ctl_isc_announce_lun(struct ctl_lun *lun) 563{ 564 struct ctl_softc *softc = lun->ctl_softc; 565 union ctl_ha_msg *msg; 566 struct ctl_ha_msg_lun_pr_key pr_key; 567 int i, k; 568 569 if (softc->ha_link != CTL_HA_LINK_ONLINE) 570 return; 571 mtx_lock(&lun->lun_lock); 572 i = sizeof(msg->lun); 573 if (lun->lun_devid) 574 i += lun->lun_devid->len; 575 i += sizeof(pr_key) * lun->pr_key_count; 576alloc: 577 mtx_unlock(&lun->lun_lock); 578 msg = malloc(i, M_CTL, M_WAITOK); 579 mtx_lock(&lun->lun_lock); 580 k = sizeof(msg->lun); 581 if (lun->lun_devid) 582 k += lun->lun_devid->len; 583 k += sizeof(pr_key) * lun->pr_key_count; 584 if (i < k) { 585 free(msg, M_CTL); 586 i = k; 587 goto alloc; 588 } 589 bzero(&msg->lun, sizeof(msg->lun)); 590 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 591 msg->hdr.nexus.targ_lun = lun->lun; 592 msg->hdr.nexus.targ_mapped_lun = lun->lun; 593 msg->lun.flags = lun->flags; 594 msg->lun.pr_generation = lun->PRGeneration; 595 msg->lun.pr_res_idx = lun->pr_res_idx; 596 msg->lun.pr_res_type = lun->res_type; 597 msg->lun.pr_key_count = lun->pr_key_count; 598 i = 0; 599 if (lun->lun_devid) { 600 msg->lun.lun_devid_len = lun->lun_devid->len; 601 memcpy(&msg->lun.data[i], lun->lun_devid->data, 602 msg->lun.lun_devid_len); 603 i += msg->lun.lun_devid_len; 604 } 605 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 606 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 607 continue; 608 pr_key.pr_iid = k; 609 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 610 i += sizeof(pr_key); 611 } 612 mtx_unlock(&lun->lun_lock); 613 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 614 M_WAITOK); 615 free(msg, M_CTL); 616 617 if (lun->flags & CTL_LUN_PRIMARY_SC) { 618 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 619 ctl_isc_announce_mode(lun, -1, 620 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 621 lun->mode_pages.index[i].subpage); 622 } 623 } 624} 625 626void 627ctl_isc_announce_port(struct ctl_port *port) 628{ 629 struct ctl_softc *softc = control_softc; 630 union ctl_ha_msg *msg; 631 int i; 632 633 if (port->targ_port < softc->port_min || 634 port->targ_port >= softc->port_max || 635 softc->ha_link != CTL_HA_LINK_ONLINE) 636 return; 637 i = sizeof(msg->port) + strlen(port->port_name) + 1; 638 if (port->lun_map) 639 i += sizeof(uint32_t) * CTL_MAX_LUNS; 640 if (port->port_devid) 641 i += port->port_devid->len; 642 if (port->target_devid) 643 i += port->target_devid->len; 644 if (port->init_devid) 645 i += port->init_devid->len; 646 msg = malloc(i, M_CTL, M_WAITOK); 647 bzero(&msg->port, sizeof(msg->port)); 648 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 649 msg->hdr.nexus.targ_port = port->targ_port; 650 msg->port.port_type = port->port_type; 651 msg->port.physical_port = port->physical_port; 652 msg->port.virtual_port = port->virtual_port; 653 msg->port.status = port->status; 654 i = 0; 655 msg->port.name_len = sprintf(&msg->port.data[i], 656 "%d:%s", softc->ha_id, port->port_name) + 1; 657 i += msg->port.name_len; 658 if (port->lun_map) { 659 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 660 memcpy(&msg->port.data[i], port->lun_map, 661 msg->port.lun_map_len); 662 i += msg->port.lun_map_len; 663 } 664 if (port->port_devid) { 665 msg->port.port_devid_len = port->port_devid->len; 666 memcpy(&msg->port.data[i], port->port_devid->data, 667 msg->port.port_devid_len); 668 i += msg->port.port_devid_len; 669 } 670 if (port->target_devid) { 671 msg->port.target_devid_len = port->target_devid->len; 672 memcpy(&msg->port.data[i], port->target_devid->data, 673 msg->port.target_devid_len); 674 i += msg->port.target_devid_len; 675 } 676 if (port->init_devid) { 677 msg->port.init_devid_len = port->init_devid->len; 678 memcpy(&msg->port.data[i], port->init_devid->data, 679 msg->port.init_devid_len); 680 i += msg->port.init_devid_len; 681 } 682 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 683 M_WAITOK); 684 free(msg, M_CTL); 685} 686 687void 688ctl_isc_announce_iid(struct ctl_port *port, int iid) 689{ 690 struct ctl_softc *softc = control_softc; 691 union ctl_ha_msg *msg; 692 int i, l; 693 694 if (port->targ_port < softc->port_min || 695 port->targ_port >= softc->port_max || 696 softc->ha_link != CTL_HA_LINK_ONLINE) 697 return; 698 mtx_lock(&softc->ctl_lock); 699 i = sizeof(msg->iid); 700 l = 0; 701 if (port->wwpn_iid[iid].name) 702 l = strlen(port->wwpn_iid[iid].name) + 1; 703 i += l; 704 msg = malloc(i, M_CTL, M_NOWAIT); 705 if (msg == NULL) { 706 mtx_unlock(&softc->ctl_lock); 707 return; 708 } 709 bzero(&msg->iid, sizeof(msg->iid)); 710 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 711 msg->hdr.nexus.targ_port = port->targ_port; 712 msg->hdr.nexus.initid = iid; 713 msg->iid.in_use = port->wwpn_iid[iid].in_use; 714 msg->iid.name_len = l; 715 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 716 if (port->wwpn_iid[iid].name) 717 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 718 mtx_unlock(&softc->ctl_lock); 719 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 720 free(msg, M_CTL); 721} 722 723void 724ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 725 uint8_t page, uint8_t subpage) 726{ 727 struct ctl_softc *softc = lun->ctl_softc; 728 union ctl_ha_msg msg; 729 int i; 730 731 if (softc->ha_link != CTL_HA_LINK_ONLINE) 732 return; 733 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 734 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 735 page && lun->mode_pages.index[i].subpage == subpage) 736 break; 737 } 738 if (i == CTL_NUM_MODE_PAGES) 739 return; 740 bzero(&msg.mode, sizeof(msg.mode)); 741 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 742 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 743 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 744 msg.hdr.nexus.targ_lun = lun->lun; 745 msg.hdr.nexus.targ_mapped_lun = lun->lun; 746 msg.mode.page_code = page; 747 msg.mode.subpage = subpage; 748 msg.mode.page_len = lun->mode_pages.index[i].page_len; 749 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 750 msg.mode.page_len); 751 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 752 M_WAITOK); 753} 754 755static void 756ctl_isc_ha_link_up(struct ctl_softc *softc) 757{ 758 struct ctl_port *port; 759 struct ctl_lun *lun; 760 union ctl_ha_msg msg; 761 int i; 762 763 /* Announce this node parameters to peer for validation. */ 764 msg.login.msg_type = CTL_MSG_LOGIN; 765 msg.login.version = CTL_HA_VERSION; 766 msg.login.ha_mode = softc->ha_mode; 767 msg.login.ha_id = softc->ha_id; 768 msg.login.max_luns = CTL_MAX_LUNS; 769 msg.login.max_ports = CTL_MAX_PORTS; 770 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 771 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 772 M_WAITOK); 773 774 STAILQ_FOREACH(port, &softc->port_list, links) { 775 ctl_isc_announce_port(port); 776 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 777 if (port->wwpn_iid[i].in_use) 778 ctl_isc_announce_iid(port, i); 779 } 780 } 781 STAILQ_FOREACH(lun, &softc->lun_list, links) 782 ctl_isc_announce_lun(lun); 783} 784 785static void 786ctl_isc_ha_link_down(struct ctl_softc *softc) 787{ 788 struct ctl_port *port; 789 struct ctl_lun *lun; 790 union ctl_io *io; 791 int i; 792 793 mtx_lock(&softc->ctl_lock); 794 STAILQ_FOREACH(lun, &softc->lun_list, links) { 795 mtx_lock(&lun->lun_lock); 796 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 797 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 798 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 799 } 800 mtx_unlock(&lun->lun_lock); 801 802 mtx_unlock(&softc->ctl_lock); 803 io = ctl_alloc_io(softc->othersc_pool); 804 mtx_lock(&softc->ctl_lock); 805 ctl_zero_io(io); 806 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 807 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 808 ctl_enqueue_isc(io); 809 } 810 811 STAILQ_FOREACH(port, &softc->port_list, links) { 812 if (port->targ_port >= softc->port_min && 813 port->targ_port < softc->port_max) 814 continue; 815 port->status &= ~CTL_PORT_STATUS_ONLINE; 816 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 817 port->wwpn_iid[i].in_use = 0; 818 free(port->wwpn_iid[i].name, M_CTL); 819 port->wwpn_iid[i].name = NULL; 820 } 821 } 822 mtx_unlock(&softc->ctl_lock); 823} 824 825static void 826ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 827{ 828 struct ctl_lun *lun; 829 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 830 831 mtx_lock(&softc->ctl_lock); 832 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 833 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 834 mtx_lock(&lun->lun_lock); 835 mtx_unlock(&softc->ctl_lock); 836 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 837 msg->ua.ua_set) 838 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 839 if (msg->ua.ua_all) { 840 if (msg->ua.ua_set) 841 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 842 else 843 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 844 } else { 845 if (msg->ua.ua_set) 846 ctl_est_ua(lun, iid, msg->ua.ua_type); 847 else 848 ctl_clr_ua(lun, iid, msg->ua.ua_type); 849 } 850 mtx_unlock(&lun->lun_lock); 851 } else 852 mtx_unlock(&softc->ctl_lock); 853} 854 855static void 856ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 857{ 858 struct ctl_lun *lun; 859 struct ctl_ha_msg_lun_pr_key pr_key; 860 int i, k; 861 ctl_lun_flags oflags; 862 uint32_t targ_lun; 863 864 targ_lun = msg->hdr.nexus.targ_mapped_lun; 865 mtx_lock(&softc->ctl_lock); 866 if ((targ_lun >= CTL_MAX_LUNS) || 867 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 868 mtx_unlock(&softc->ctl_lock); 869 return; 870 } 871 mtx_lock(&lun->lun_lock); 872 mtx_unlock(&softc->ctl_lock); 873 if (lun->flags & CTL_LUN_DISABLED) { 874 mtx_unlock(&lun->lun_lock); 875 return; 876 } 877 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 878 if (msg->lun.lun_devid_len != i || (i > 0 && 879 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 880 mtx_unlock(&lun->lun_lock); 881 printf("%s: Received conflicting HA LUN %d\n", 882 __func__, msg->hdr.nexus.targ_lun); 883 return; 884 } else { 885 /* Record whether peer is primary. */ 886 oflags = lun->flags; 887 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 888 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 889 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 890 else 891 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 892 if (oflags != lun->flags) 893 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 894 895 /* If peer is primary and we are not -- use data */ 896 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 897 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 898 lun->PRGeneration = msg->lun.pr_generation; 899 lun->pr_res_idx = msg->lun.pr_res_idx; 900 lun->res_type = msg->lun.pr_res_type; 901 lun->pr_key_count = msg->lun.pr_key_count; 902 for (k = 0; k < CTL_MAX_INITIATORS; k++) 903 ctl_clr_prkey(lun, k); 904 for (k = 0; k < msg->lun.pr_key_count; k++) { 905 memcpy(&pr_key, &msg->lun.data[i], 906 sizeof(pr_key)); 907 ctl_alloc_prkey(lun, pr_key.pr_iid); 908 ctl_set_prkey(lun, pr_key.pr_iid, 909 pr_key.pr_key); 910 i += sizeof(pr_key); 911 } 912 } 913 914 mtx_unlock(&lun->lun_lock); 915 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 916 __func__, msg->hdr.nexus.targ_lun, 917 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 918 "primary" : "secondary")); 919 920 /* If we are primary but peer doesn't know -- notify */ 921 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 922 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 923 ctl_isc_announce_lun(lun); 924 } 925} 926 927static void 928ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 929{ 930 struct ctl_port *port; 931 struct ctl_lun *lun; 932 int i, new; 933 934 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 935 if (port == NULL) { 936 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 937 msg->hdr.nexus.targ_port)); 938 new = 1; 939 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 940 port->frontend = &ha_frontend; 941 port->targ_port = msg->hdr.nexus.targ_port; 942 } else if (port->frontend == &ha_frontend) { 943 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 944 msg->hdr.nexus.targ_port)); 945 new = 0; 946 } else { 947 printf("%s: Received conflicting HA port %d\n", 948 __func__, msg->hdr.nexus.targ_port); 949 return; 950 } 951 port->port_type = msg->port.port_type; 952 port->physical_port = msg->port.physical_port; 953 port->virtual_port = msg->port.virtual_port; 954 port->status = msg->port.status; 955 i = 0; 956 free(port->port_name, M_CTL); 957 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 958 M_CTL); 959 i += msg->port.name_len; 960 if (msg->port.lun_map_len != 0) { 961 if (port->lun_map == NULL) 962 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 963 M_CTL, M_WAITOK); 964 memcpy(port->lun_map, &msg->port.data[i], 965 sizeof(uint32_t) * CTL_MAX_LUNS); 966 i += msg->port.lun_map_len; 967 } else { 968 free(port->lun_map, M_CTL); 969 port->lun_map = NULL; 970 } 971 if (msg->port.port_devid_len != 0) { 972 if (port->port_devid == NULL || 973 port->port_devid->len != msg->port.port_devid_len) { 974 free(port->port_devid, M_CTL); 975 port->port_devid = malloc(sizeof(struct ctl_devid) + 976 msg->port.port_devid_len, M_CTL, M_WAITOK); 977 } 978 memcpy(port->port_devid->data, &msg->port.data[i], 979 msg->port.port_devid_len); 980 port->port_devid->len = msg->port.port_devid_len; 981 i += msg->port.port_devid_len; 982 } else { 983 free(port->port_devid, M_CTL); 984 port->port_devid = NULL; 985 } 986 if (msg->port.target_devid_len != 0) { 987 if (port->target_devid == NULL || 988 port->target_devid->len != msg->port.target_devid_len) { 989 free(port->target_devid, M_CTL); 990 port->target_devid = malloc(sizeof(struct ctl_devid) + 991 msg->port.target_devid_len, M_CTL, M_WAITOK); 992 } 993 memcpy(port->target_devid->data, &msg->port.data[i], 994 msg->port.target_devid_len); 995 port->target_devid->len = msg->port.target_devid_len; 996 i += msg->port.target_devid_len; 997 } else { 998 free(port->target_devid, M_CTL); 999 port->target_devid = NULL; 1000 } 1001 if (msg->port.init_devid_len != 0) { 1002 if (port->init_devid == NULL || 1003 port->init_devid->len != msg->port.init_devid_len) { 1004 free(port->init_devid, M_CTL); 1005 port->init_devid = malloc(sizeof(struct ctl_devid) + 1006 msg->port.init_devid_len, M_CTL, M_WAITOK); 1007 } 1008 memcpy(port->init_devid->data, &msg->port.data[i], 1009 msg->port.init_devid_len); 1010 port->init_devid->len = msg->port.init_devid_len; 1011 i += msg->port.init_devid_len; 1012 } else { 1013 free(port->init_devid, M_CTL); 1014 port->init_devid = NULL; 1015 } 1016 if (new) { 1017 if (ctl_port_register(port) != 0) { 1018 printf("%s: ctl_port_register() failed with error\n", 1019 __func__); 1020 } 1021 } 1022 mtx_lock(&softc->ctl_lock); 1023 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1024 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1025 continue; 1026 mtx_lock(&lun->lun_lock); 1027 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1028 mtx_unlock(&lun->lun_lock); 1029 } 1030 mtx_unlock(&softc->ctl_lock); 1031} 1032 1033static void 1034ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1035{ 1036 struct ctl_port *port; 1037 int iid; 1038 1039 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1040 if (port == NULL) { 1041 printf("%s: Received IID for unknown port %d\n", 1042 __func__, msg->hdr.nexus.targ_port); 1043 return; 1044 } 1045 iid = msg->hdr.nexus.initid; 1046 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1047 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1048 free(port->wwpn_iid[iid].name, M_CTL); 1049 if (msg->iid.name_len) { 1050 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1051 msg->iid.name_len, M_CTL); 1052 } else 1053 port->wwpn_iid[iid].name = NULL; 1054} 1055 1056static void 1057ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1058{ 1059 1060 if (msg->login.version != CTL_HA_VERSION) { 1061 printf("CTL HA peers have different versions %d != %d\n", 1062 msg->login.version, CTL_HA_VERSION); 1063 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1064 return; 1065 } 1066 if (msg->login.ha_mode != softc->ha_mode) { 1067 printf("CTL HA peers have different ha_mode %d != %d\n", 1068 msg->login.ha_mode, softc->ha_mode); 1069 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1070 return; 1071 } 1072 if (msg->login.ha_id == softc->ha_id) { 1073 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1074 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1075 return; 1076 } 1077 if (msg->login.max_luns != CTL_MAX_LUNS || 1078 msg->login.max_ports != CTL_MAX_PORTS || 1079 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1080 printf("CTL HA peers have different limits\n"); 1081 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1082 return; 1083 } 1084} 1085 1086static void 1087ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1088{ 1089 struct ctl_lun *lun; 1090 int i; 1091 uint32_t initidx, targ_lun; 1092 1093 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1094 mtx_lock(&softc->ctl_lock); 1095 if ((targ_lun >= CTL_MAX_LUNS) || 1096 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1097 mtx_unlock(&softc->ctl_lock); 1098 return; 1099 } 1100 mtx_lock(&lun->lun_lock); 1101 mtx_unlock(&softc->ctl_lock); 1102 if (lun->flags & CTL_LUN_DISABLED) { 1103 mtx_unlock(&lun->lun_lock); 1104 return; 1105 } 1106 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1107 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1108 msg->mode.page_code && 1109 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1110 break; 1111 } 1112 if (i == CTL_NUM_MODE_PAGES) { 1113 mtx_unlock(&lun->lun_lock); 1114 return; 1115 } 1116 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1117 lun->mode_pages.index[i].page_len); 1118 initidx = ctl_get_initindex(&msg->hdr.nexus); 1119 if (initidx != -1) 1120 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1121 mtx_unlock(&lun->lun_lock); 1122} 1123 1124/* 1125 * ISC (Inter Shelf Communication) event handler. Events from the HA 1126 * subsystem come in here. 1127 */ 1128static void 1129ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1130{ 1131 struct ctl_softc *softc; 1132 union ctl_io *io; 1133 struct ctl_prio *presio; 1134 ctl_ha_status isc_status; 1135 1136 softc = control_softc; 1137 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1138 if (event == CTL_HA_EVT_MSG_RECV) { 1139 union ctl_ha_msg *msg, msgbuf; 1140 1141 if (param > sizeof(msgbuf)) 1142 msg = malloc(param, M_CTL, M_WAITOK); 1143 else 1144 msg = &msgbuf; 1145 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1146 M_WAITOK); 1147 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1148 printf("%s: Error receiving message: %d\n", 1149 __func__, isc_status); 1150 if (msg != &msgbuf) 1151 free(msg, M_CTL); 1152 return; 1153 } 1154 1155 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1156 switch (msg->hdr.msg_type) { 1157 case CTL_MSG_SERIALIZE: 1158 io = ctl_alloc_io(softc->othersc_pool); 1159 ctl_zero_io(io); 1160 // populate ctsio from msg 1161 io->io_hdr.io_type = CTL_IO_SCSI; 1162 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1163 io->io_hdr.original_sc = msg->hdr.original_sc; 1164 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1165 CTL_FLAG_IO_ACTIVE; 1166 /* 1167 * If we're in serialization-only mode, we don't 1168 * want to go through full done processing. Thus 1169 * the COPY flag. 1170 * 1171 * XXX KDM add another flag that is more specific. 1172 */ 1173 if (softc->ha_mode != CTL_HA_MODE_XFER) 1174 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1175 io->io_hdr.nexus = msg->hdr.nexus; 1176#if 0 1177 printf("port %u, iid %u, lun %u\n", 1178 io->io_hdr.nexus.targ_port, 1179 io->io_hdr.nexus.initid, 1180 io->io_hdr.nexus.targ_lun); 1181#endif 1182 io->scsiio.tag_num = msg->scsi.tag_num; 1183 io->scsiio.tag_type = msg->scsi.tag_type; 1184#ifdef CTL_TIME_IO 1185 io->io_hdr.start_time = time_uptime; 1186 getbintime(&io->io_hdr.start_bt); 1187#endif /* CTL_TIME_IO */ 1188 io->scsiio.cdb_len = msg->scsi.cdb_len; 1189 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1190 CTL_MAX_CDBLEN); 1191 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1192 const struct ctl_cmd_entry *entry; 1193 1194 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1195 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1196 io->io_hdr.flags |= 1197 entry->flags & CTL_FLAG_DATA_MASK; 1198 } 1199 ctl_enqueue_isc(io); 1200 break; 1201 1202 /* Performed on the Originating SC, XFER mode only */ 1203 case CTL_MSG_DATAMOVE: { 1204 struct ctl_sg_entry *sgl; 1205 int i, j; 1206 1207 io = msg->hdr.original_sc; 1208 if (io == NULL) { 1209 printf("%s: original_sc == NULL!\n", __func__); 1210 /* XXX KDM do something here */ 1211 break; 1212 } 1213 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1214 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1215 /* 1216 * Keep track of this, we need to send it back over 1217 * when the datamove is complete. 1218 */ 1219 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1220 if (msg->hdr.status == CTL_SUCCESS) 1221 io->io_hdr.status = msg->hdr.status; 1222 1223 if (msg->dt.sg_sequence == 0) { 1224 i = msg->dt.kern_sg_entries + 1225 msg->dt.kern_data_len / 1226 CTL_HA_DATAMOVE_SEGMENT + 1; 1227 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1228 M_WAITOK | M_ZERO); 1229 io->io_hdr.remote_sglist = sgl; 1230 io->io_hdr.local_sglist = 1231 &sgl[msg->dt.kern_sg_entries]; 1232 1233 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1234 1235 io->scsiio.kern_sg_entries = 1236 msg->dt.kern_sg_entries; 1237 io->scsiio.rem_sg_entries = 1238 msg->dt.kern_sg_entries; 1239 io->scsiio.kern_data_len = 1240 msg->dt.kern_data_len; 1241 io->scsiio.kern_total_len = 1242 msg->dt.kern_total_len; 1243 io->scsiio.kern_data_resid = 1244 msg->dt.kern_data_resid; 1245 io->scsiio.kern_rel_offset = 1246 msg->dt.kern_rel_offset; 1247 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1248 io->io_hdr.flags |= msg->dt.flags & 1249 CTL_FLAG_BUS_ADDR; 1250 } else 1251 sgl = (struct ctl_sg_entry *) 1252 io->scsiio.kern_data_ptr; 1253 1254 for (i = msg->dt.sent_sg_entries, j = 0; 1255 i < (msg->dt.sent_sg_entries + 1256 msg->dt.cur_sg_entries); i++, j++) { 1257 sgl[i].addr = msg->dt.sg_list[j].addr; 1258 sgl[i].len = msg->dt.sg_list[j].len; 1259 1260#if 0 1261 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1262 __func__, sgl[i].addr, sgl[i].len, j, i); 1263#endif 1264 } 1265 1266 /* 1267 * If this is the last piece of the I/O, we've got 1268 * the full S/G list. Queue processing in the thread. 1269 * Otherwise wait for the next piece. 1270 */ 1271 if (msg->dt.sg_last != 0) 1272 ctl_enqueue_isc(io); 1273 break; 1274 } 1275 /* Performed on the Serializing (primary) SC, XFER mode only */ 1276 case CTL_MSG_DATAMOVE_DONE: { 1277 if (msg->hdr.serializing_sc == NULL) { 1278 printf("%s: serializing_sc == NULL!\n", 1279 __func__); 1280 /* XXX KDM now what? */ 1281 break; 1282 } 1283 /* 1284 * We grab the sense information here in case 1285 * there was a failure, so we can return status 1286 * back to the initiator. 1287 */ 1288 io = msg->hdr.serializing_sc; 1289 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1290 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1291 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1292 io->io_hdr.port_status = msg->scsi.fetd_status; 1293 io->scsiio.residual = msg->scsi.residual; 1294 if (msg->hdr.status != CTL_STATUS_NONE) { 1295 io->io_hdr.status = msg->hdr.status; 1296 io->scsiio.scsi_status = msg->scsi.scsi_status; 1297 io->scsiio.sense_len = msg->scsi.sense_len; 1298 io->scsiio.sense_residual =msg->scsi.sense_residual; 1299 memcpy(&io->scsiio.sense_data, 1300 &msg->scsi.sense_data, 1301 msg->scsi.sense_len); 1302 if (msg->hdr.status == CTL_SUCCESS) 1303 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1304 } 1305 ctl_enqueue_isc(io); 1306 break; 1307 } 1308 1309 /* Preformed on Originating SC, SER_ONLY mode */ 1310 case CTL_MSG_R2R: 1311 io = msg->hdr.original_sc; 1312 if (io == NULL) { 1313 printf("%s: original_sc == NULL!\n", 1314 __func__); 1315 break; 1316 } 1317 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1318 io->io_hdr.msg_type = CTL_MSG_R2R; 1319 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1320 ctl_enqueue_isc(io); 1321 break; 1322 1323 /* 1324 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1325 * mode. 1326 * Performed on the Originating (i.e. secondary) SC in XFER 1327 * mode 1328 */ 1329 case CTL_MSG_FINISH_IO: 1330 if (softc->ha_mode == CTL_HA_MODE_XFER) 1331 ctl_isc_handler_finish_xfer(softc, msg); 1332 else 1333 ctl_isc_handler_finish_ser_only(softc, msg); 1334 break; 1335 1336 /* Preformed on Originating SC */ 1337 case CTL_MSG_BAD_JUJU: 1338 io = msg->hdr.original_sc; 1339 if (io == NULL) { 1340 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1341 __func__); 1342 break; 1343 } 1344 ctl_copy_sense_data(msg, io); 1345 /* 1346 * IO should have already been cleaned up on other 1347 * SC so clear this flag so we won't send a message 1348 * back to finish the IO there. 1349 */ 1350 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1351 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1352 1353 /* io = msg->hdr.serializing_sc; */ 1354 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1355 ctl_enqueue_isc(io); 1356 break; 1357 1358 /* Handle resets sent from the other side */ 1359 case CTL_MSG_MANAGE_TASKS: { 1360 struct ctl_taskio *taskio; 1361 taskio = (struct ctl_taskio *)ctl_alloc_io( 1362 softc->othersc_pool); 1363 ctl_zero_io((union ctl_io *)taskio); 1364 taskio->io_hdr.io_type = CTL_IO_TASK; 1365 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1366 taskio->io_hdr.nexus = msg->hdr.nexus; 1367 taskio->task_action = msg->task.task_action; 1368 taskio->tag_num = msg->task.tag_num; 1369 taskio->tag_type = msg->task.tag_type; 1370#ifdef CTL_TIME_IO 1371 taskio->io_hdr.start_time = time_uptime; 1372 getbintime(&taskio->io_hdr.start_bt); 1373#endif /* CTL_TIME_IO */ 1374 ctl_run_task((union ctl_io *)taskio); 1375 break; 1376 } 1377 /* Persistent Reserve action which needs attention */ 1378 case CTL_MSG_PERS_ACTION: 1379 presio = (struct ctl_prio *)ctl_alloc_io( 1380 softc->othersc_pool); 1381 ctl_zero_io((union ctl_io *)presio); 1382 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1383 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1384 presio->io_hdr.nexus = msg->hdr.nexus; 1385 presio->pr_msg = msg->pr; 1386 ctl_enqueue_isc((union ctl_io *)presio); 1387 break; 1388 case CTL_MSG_UA: 1389 ctl_isc_ua(softc, msg, param); 1390 break; 1391 case CTL_MSG_PORT_SYNC: 1392 ctl_isc_port_sync(softc, msg, param); 1393 break; 1394 case CTL_MSG_LUN_SYNC: 1395 ctl_isc_lun_sync(softc, msg, param); 1396 break; 1397 case CTL_MSG_IID_SYNC: 1398 ctl_isc_iid_sync(softc, msg, param); 1399 break; 1400 case CTL_MSG_LOGIN: 1401 ctl_isc_login(softc, msg, param); 1402 break; 1403 case CTL_MSG_MODE_SYNC: 1404 ctl_isc_mode_sync(softc, msg, param); 1405 break; 1406 default: 1407 printf("Received HA message of unknown type %d\n", 1408 msg->hdr.msg_type); 1409 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1410 break; 1411 } 1412 if (msg != &msgbuf) 1413 free(msg, M_CTL); 1414 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1415 printf("CTL: HA link status changed from %d to %d\n", 1416 softc->ha_link, param); 1417 if (param == softc->ha_link) 1418 return; 1419 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1420 softc->ha_link = param; 1421 ctl_isc_ha_link_down(softc); 1422 } else { 1423 softc->ha_link = param; 1424 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1425 ctl_isc_ha_link_up(softc); 1426 } 1427 return; 1428 } else { 1429 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1430 return; 1431 } 1432} 1433 1434static void 1435ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1436{ 1437 1438 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1439 src->scsi.sense_len); 1440 dest->scsiio.scsi_status = src->scsi.scsi_status; 1441 dest->scsiio.sense_len = src->scsi.sense_len; 1442 dest->io_hdr.status = src->hdr.status; 1443} 1444 1445static void 1446ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1447{ 1448 1449 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1450 src->scsiio.sense_len); 1451 dest->scsi.scsi_status = src->scsiio.scsi_status; 1452 dest->scsi.sense_len = src->scsiio.sense_len; 1453 dest->hdr.status = src->io_hdr.status; 1454} 1455 1456void 1457ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1458{ 1459 struct ctl_softc *softc = lun->ctl_softc; 1460 ctl_ua_type *pu; 1461 1462 if (initidx < softc->init_min || initidx >= softc->init_max) 1463 return; 1464 mtx_assert(&lun->lun_lock, MA_OWNED); 1465 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1466 if (pu == NULL) 1467 return; 1468 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1469} 1470 1471void 1472ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1473{ 1474 int i; 1475 1476 mtx_assert(&lun->lun_lock, MA_OWNED); 1477 if (lun->pending_ua[port] == NULL) 1478 return; 1479 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1480 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1481 continue; 1482 lun->pending_ua[port][i] |= ua; 1483 } 1484} 1485 1486void 1487ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1488{ 1489 struct ctl_softc *softc = lun->ctl_softc; 1490 int i; 1491 1492 mtx_assert(&lun->lun_lock, MA_OWNED); 1493 for (i = softc->port_min; i < softc->port_max; i++) 1494 ctl_est_ua_port(lun, i, except, ua); 1495} 1496 1497void 1498ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1499{ 1500 struct ctl_softc *softc = lun->ctl_softc; 1501 ctl_ua_type *pu; 1502 1503 if (initidx < softc->init_min || initidx >= softc->init_max) 1504 return; 1505 mtx_assert(&lun->lun_lock, MA_OWNED); 1506 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1507 if (pu == NULL) 1508 return; 1509 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1510} 1511 1512void 1513ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1514{ 1515 struct ctl_softc *softc = lun->ctl_softc; 1516 int i, j; 1517 1518 mtx_assert(&lun->lun_lock, MA_OWNED); 1519 for (i = softc->port_min; i < softc->port_max; i++) { 1520 if (lun->pending_ua[i] == NULL) 1521 continue; 1522 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1523 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1524 continue; 1525 lun->pending_ua[i][j] &= ~ua; 1526 } 1527 } 1528} 1529 1530void 1531ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1532 ctl_ua_type ua_type) 1533{ 1534 struct ctl_lun *lun; 1535 1536 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1537 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1538 mtx_lock(&lun->lun_lock); 1539 ctl_clr_ua(lun, initidx, ua_type); 1540 mtx_unlock(&lun->lun_lock); 1541 } 1542} 1543 1544static int 1545ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1546{ 1547 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1548 struct ctl_lun *lun; 1549 struct ctl_lun_req ireq; 1550 int error, value; 1551 1552 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1553 error = sysctl_handle_int(oidp, &value, 0, req); 1554 if ((error != 0) || (req->newptr == NULL)) 1555 return (error); 1556 1557 mtx_lock(&softc->ctl_lock); 1558 if (value == 0) 1559 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1560 else 1561 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1562 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1563 mtx_unlock(&softc->ctl_lock); 1564 bzero(&ireq, sizeof(ireq)); 1565 ireq.reqtype = CTL_LUNREQ_MODIFY; 1566 ireq.reqdata.modify.lun_id = lun->lun; 1567 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1568 curthread); 1569 if (ireq.status != CTL_LUN_OK) { 1570 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1571 __func__, ireq.status, ireq.error_str); 1572 } 1573 mtx_lock(&softc->ctl_lock); 1574 } 1575 mtx_unlock(&softc->ctl_lock); 1576 return (0); 1577} 1578 1579static int 1580ctl_init(void) 1581{ 1582 struct ctl_softc *softc; 1583 void *other_pool; 1584 int i, error, retval; 1585 1586 retval = 0; 1587 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1588 M_WAITOK | M_ZERO); 1589 softc = control_softc; 1590 1591 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1592 "cam/ctl"); 1593 1594 softc->dev->si_drv1 = softc; 1595 1596 sysctl_ctx_init(&softc->sysctl_ctx); 1597 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1598 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1599 CTLFLAG_RD, 0, "CAM Target Layer"); 1600 1601 if (softc->sysctl_tree == NULL) { 1602 printf("%s: unable to allocate sysctl tree\n", __func__); 1603 destroy_dev(softc->dev); 1604 free(control_softc, M_DEVBUF); 1605 control_softc = NULL; 1606 return (ENOMEM); 1607 } 1608 1609 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1610 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1611 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1612 softc->open_count = 0; 1613 1614 /* 1615 * Default to actually sending a SYNCHRONIZE CACHE command down to 1616 * the drive. 1617 */ 1618 softc->flags = CTL_FLAG_REAL_SYNC; 1619 1620 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1621 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1622 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1623 1624 /* 1625 * In Copan's HA scheme, the "master" and "slave" roles are 1626 * figured out through the slot the controller is in. Although it 1627 * is an active/active system, someone has to be in charge. 1628 */ 1629 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1630 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1631 "HA head ID (0 - no HA)"); 1632 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1633 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1634 softc->is_single = 1; 1635 softc->port_cnt = CTL_MAX_PORTS; 1636 softc->port_min = 0; 1637 } else { 1638 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1639 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1640 } 1641 softc->port_max = softc->port_min + softc->port_cnt; 1642 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1643 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1644 1645 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1646 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1647 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1648 1649 STAILQ_INIT(&softc->lun_list); 1650 STAILQ_INIT(&softc->pending_lun_queue); 1651 STAILQ_INIT(&softc->fe_list); 1652 STAILQ_INIT(&softc->port_list); 1653 STAILQ_INIT(&softc->be_list); 1654 ctl_tpc_init(softc); 1655 1656 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1657 &other_pool) != 0) 1658 { 1659 printf("ctl: can't allocate %d entry other SC pool, " 1660 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1661 return (ENOMEM); 1662 } 1663 softc->othersc_pool = other_pool; 1664 1665 if (worker_threads <= 0) 1666 worker_threads = max(1, mp_ncpus / 4); 1667 if (worker_threads > CTL_MAX_THREADS) 1668 worker_threads = CTL_MAX_THREADS; 1669 1670 for (i = 0; i < worker_threads; i++) { 1671 struct ctl_thread *thr = &softc->threads[i]; 1672 1673 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1674 thr->ctl_softc = softc; 1675 STAILQ_INIT(&thr->incoming_queue); 1676 STAILQ_INIT(&thr->rtr_queue); 1677 STAILQ_INIT(&thr->done_queue); 1678 STAILQ_INIT(&thr->isc_queue); 1679 1680 error = kproc_kthread_add(ctl_work_thread, thr, 1681 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1682 if (error != 0) { 1683 printf("error creating CTL work thread!\n"); 1684 ctl_pool_free(other_pool); 1685 return (error); 1686 } 1687 } 1688 error = kproc_kthread_add(ctl_lun_thread, softc, 1689 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1690 if (error != 0) { 1691 printf("error creating CTL lun thread!\n"); 1692 ctl_pool_free(other_pool); 1693 return (error); 1694 } 1695 error = kproc_kthread_add(ctl_thresh_thread, softc, 1696 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1697 if (error != 0) { 1698 printf("error creating CTL threshold thread!\n"); 1699 ctl_pool_free(other_pool); 1700 return (error); 1701 } 1702 1703 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1704 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1705 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1706 1707 if (softc->is_single == 0) { 1708 ctl_frontend_register(&ha_frontend); 1709 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1710 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1711 softc->is_single = 1; 1712 } else 1713 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1714 != CTL_HA_STATUS_SUCCESS) { 1715 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1716 softc->is_single = 1; 1717 } 1718 } 1719 return (0); 1720} 1721 1722void 1723ctl_shutdown(void) 1724{ 1725 struct ctl_softc *softc; 1726 struct ctl_lun *lun, *next_lun; 1727 1728 softc = (struct ctl_softc *)control_softc; 1729 1730 if (softc->is_single == 0) { 1731 ctl_ha_msg_shutdown(softc); 1732 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1733 != CTL_HA_STATUS_SUCCESS) 1734 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1735 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1736 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1737 ctl_frontend_deregister(&ha_frontend); 1738 } 1739 1740 mtx_lock(&softc->ctl_lock); 1741 1742 /* 1743 * Free up each LUN. 1744 */ 1745 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1746 next_lun = STAILQ_NEXT(lun, links); 1747 ctl_free_lun(lun); 1748 } 1749 1750 mtx_unlock(&softc->ctl_lock); 1751 1752#if 0 1753 ctl_shutdown_thread(softc->work_thread); 1754 mtx_destroy(&softc->queue_lock); 1755#endif 1756 1757 ctl_tpc_shutdown(softc); 1758 uma_zdestroy(softc->io_zone); 1759 mtx_destroy(&softc->ctl_lock); 1760 1761 destroy_dev(softc->dev); 1762 1763 sysctl_ctx_free(&softc->sysctl_ctx); 1764 1765 free(control_softc, M_DEVBUF); 1766 control_softc = NULL; 1767} 1768 1769static int 1770ctl_module_event_handler(module_t mod, int what, void *arg) 1771{ 1772 1773 switch (what) { 1774 case MOD_LOAD: 1775 return (ctl_init()); 1776 case MOD_UNLOAD: 1777 return (EBUSY); 1778 default: 1779 return (EOPNOTSUPP); 1780 } 1781} 1782 1783/* 1784 * XXX KDM should we do some access checks here? Bump a reference count to 1785 * prevent a CTL module from being unloaded while someone has it open? 1786 */ 1787static int 1788ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1789{ 1790 return (0); 1791} 1792 1793static int 1794ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1795{ 1796 return (0); 1797} 1798 1799/* 1800 * Remove an initiator by port number and initiator ID. 1801 * Returns 0 for success, -1 for failure. 1802 */ 1803int 1804ctl_remove_initiator(struct ctl_port *port, int iid) 1805{ 1806 struct ctl_softc *softc = control_softc; 1807 1808 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1809 1810 if (iid > CTL_MAX_INIT_PER_PORT) { 1811 printf("%s: initiator ID %u > maximun %u!\n", 1812 __func__, iid, CTL_MAX_INIT_PER_PORT); 1813 return (-1); 1814 } 1815 1816 mtx_lock(&softc->ctl_lock); 1817 port->wwpn_iid[iid].in_use--; 1818 port->wwpn_iid[iid].last_use = time_uptime; 1819 mtx_unlock(&softc->ctl_lock); 1820 ctl_isc_announce_iid(port, iid); 1821 1822 return (0); 1823} 1824 1825/* 1826 * Add an initiator to the initiator map. 1827 * Returns iid for success, < 0 for failure. 1828 */ 1829int 1830ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1831{ 1832 struct ctl_softc *softc = control_softc; 1833 time_t best_time; 1834 int i, best; 1835 1836 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1837 1838 if (iid >= CTL_MAX_INIT_PER_PORT) { 1839 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1840 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1841 free(name, M_CTL); 1842 return (-1); 1843 } 1844 1845 mtx_lock(&softc->ctl_lock); 1846 1847 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1848 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1849 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1850 iid = i; 1851 break; 1852 } 1853 if (name != NULL && port->wwpn_iid[i].name != NULL && 1854 strcmp(name, port->wwpn_iid[i].name) == 0) { 1855 iid = i; 1856 break; 1857 } 1858 } 1859 } 1860 1861 if (iid < 0) { 1862 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1863 if (port->wwpn_iid[i].in_use == 0 && 1864 port->wwpn_iid[i].wwpn == 0 && 1865 port->wwpn_iid[i].name == NULL) { 1866 iid = i; 1867 break; 1868 } 1869 } 1870 } 1871 1872 if (iid < 0) { 1873 best = -1; 1874 best_time = INT32_MAX; 1875 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1876 if (port->wwpn_iid[i].in_use == 0) { 1877 if (port->wwpn_iid[i].last_use < best_time) { 1878 best = i; 1879 best_time = port->wwpn_iid[i].last_use; 1880 } 1881 } 1882 } 1883 iid = best; 1884 } 1885 1886 if (iid < 0) { 1887 mtx_unlock(&softc->ctl_lock); 1888 free(name, M_CTL); 1889 return (-2); 1890 } 1891 1892 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1893 /* 1894 * This is not an error yet. 1895 */ 1896 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1897#if 0 1898 printf("%s: port %d iid %u WWPN %#jx arrived" 1899 " again\n", __func__, port->targ_port, 1900 iid, (uintmax_t)wwpn); 1901#endif 1902 goto take; 1903 } 1904 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1905 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1906#if 0 1907 printf("%s: port %d iid %u name '%s' arrived" 1908 " again\n", __func__, port->targ_port, 1909 iid, name); 1910#endif 1911 goto take; 1912 } 1913 1914 /* 1915 * This is an error, but what do we do about it? The 1916 * driver is telling us we have a new WWPN for this 1917 * initiator ID, so we pretty much need to use it. 1918 */ 1919 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1920 " but WWPN %#jx '%s' is still at that address\n", 1921 __func__, port->targ_port, iid, wwpn, name, 1922 (uintmax_t)port->wwpn_iid[iid].wwpn, 1923 port->wwpn_iid[iid].name); 1924 1925 /* 1926 * XXX KDM clear have_ca and ua_pending on each LUN for 1927 * this initiator. 1928 */ 1929 } 1930take: 1931 free(port->wwpn_iid[iid].name, M_CTL); 1932 port->wwpn_iid[iid].name = name; 1933 port->wwpn_iid[iid].wwpn = wwpn; 1934 port->wwpn_iid[iid].in_use++; 1935 mtx_unlock(&softc->ctl_lock); 1936 ctl_isc_announce_iid(port, iid); 1937 1938 return (iid); 1939} 1940 1941static int 1942ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1943{ 1944 int len; 1945 1946 switch (port->port_type) { 1947 case CTL_PORT_FC: 1948 { 1949 struct scsi_transportid_fcp *id = 1950 (struct scsi_transportid_fcp *)buf; 1951 if (port->wwpn_iid[iid].wwpn == 0) 1952 return (0); 1953 memset(id, 0, sizeof(*id)); 1954 id->format_protocol = SCSI_PROTO_FC; 1955 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1956 return (sizeof(*id)); 1957 } 1958 case CTL_PORT_ISCSI: 1959 { 1960 struct scsi_transportid_iscsi_port *id = 1961 (struct scsi_transportid_iscsi_port *)buf; 1962 if (port->wwpn_iid[iid].name == NULL) 1963 return (0); 1964 memset(id, 0, 256); 1965 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1966 SCSI_PROTO_ISCSI; 1967 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1968 len = roundup2(min(len, 252), 4); 1969 scsi_ulto2b(len, id->additional_length); 1970 return (sizeof(*id) + len); 1971 } 1972 case CTL_PORT_SAS: 1973 { 1974 struct scsi_transportid_sas *id = 1975 (struct scsi_transportid_sas *)buf; 1976 if (port->wwpn_iid[iid].wwpn == 0) 1977 return (0); 1978 memset(id, 0, sizeof(*id)); 1979 id->format_protocol = SCSI_PROTO_SAS; 1980 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1981 return (sizeof(*id)); 1982 } 1983 default: 1984 { 1985 struct scsi_transportid_spi *id = 1986 (struct scsi_transportid_spi *)buf; 1987 memset(id, 0, sizeof(*id)); 1988 id->format_protocol = SCSI_PROTO_SPI; 1989 scsi_ulto2b(iid, id->scsi_addr); 1990 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1991 return (sizeof(*id)); 1992 } 1993 } 1994} 1995 1996/* 1997 * Serialize a command that went down the "wrong" side, and so was sent to 1998 * this controller for execution. The logic is a little different than the 1999 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2000 * sent back to the other side, but in the success case, we execute the 2001 * command on this side (XFER mode) or tell the other side to execute it 2002 * (SER_ONLY mode). 2003 */ 2004static int 2005ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2006{ 2007 struct ctl_softc *softc; 2008 union ctl_ha_msg msg_info; 2009 struct ctl_lun *lun; 2010 const struct ctl_cmd_entry *entry; 2011 int retval = 0; 2012 uint32_t targ_lun; 2013 2014 softc = control_softc; 2015 2016 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2017 mtx_lock(&softc->ctl_lock); 2018 if ((targ_lun < CTL_MAX_LUNS) && 2019 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2020 mtx_lock(&lun->lun_lock); 2021 mtx_unlock(&softc->ctl_lock); 2022 /* 2023 * If the LUN is invalid, pretend that it doesn't exist. 2024 * It will go away as soon as all pending I/O has been 2025 * completed. 2026 */ 2027 if (lun->flags & CTL_LUN_DISABLED) { 2028 mtx_unlock(&lun->lun_lock); 2029 lun = NULL; 2030 } 2031 } else { 2032 mtx_unlock(&softc->ctl_lock); 2033 lun = NULL; 2034 } 2035 if (lun == NULL) { 2036 /* 2037 * The other node would not send this request to us unless 2038 * received announce that we are primary node for this LUN. 2039 * If this LUN does not exist now, it is probably result of 2040 * a race, so respond to initiator in the most opaque way. 2041 */ 2042 ctl_set_busy(ctsio); 2043 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2044 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2045 msg_info.hdr.serializing_sc = NULL; 2046 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2047 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2048 sizeof(msg_info.scsi), M_WAITOK); 2049 return(1); 2050 } 2051 2052 entry = ctl_get_cmd_entry(ctsio, NULL); 2053 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2054 mtx_unlock(&lun->lun_lock); 2055 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2056 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2057 msg_info.hdr.serializing_sc = NULL; 2058 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2059 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2060 sizeof(msg_info.scsi), M_WAITOK); 2061 return(1); 2062 } 2063 2064 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2065 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2066 2067 /* 2068 * Every I/O goes into the OOA queue for a 2069 * particular LUN, and stays there until completion. 2070 */ 2071#ifdef CTL_TIME_IO 2072 if (TAILQ_EMPTY(&lun->ooa_queue)) 2073 lun->idle_time += getsbinuptime() - lun->last_busy; 2074#endif 2075 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2076 2077 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2078 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2079 ooa_links))) { 2080 case CTL_ACTION_BLOCK: 2081 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2082 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2083 blocked_links); 2084 mtx_unlock(&lun->lun_lock); 2085 break; 2086 case CTL_ACTION_PASS: 2087 case CTL_ACTION_SKIP: 2088 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2089 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2090 ctl_enqueue_rtr((union ctl_io *)ctsio); 2091 mtx_unlock(&lun->lun_lock); 2092 } else { 2093 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2094 mtx_unlock(&lun->lun_lock); 2095 2096 /* send msg back to other side */ 2097 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2098 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2099 msg_info.hdr.msg_type = CTL_MSG_R2R; 2100 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2101 sizeof(msg_info.hdr), M_WAITOK); 2102 } 2103 break; 2104 case CTL_ACTION_OVERLAP: 2105 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2106 mtx_unlock(&lun->lun_lock); 2107 retval = 1; 2108 2109 ctl_set_overlapped_cmd(ctsio); 2110 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2111 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2112 msg_info.hdr.serializing_sc = NULL; 2113 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2114 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2115 sizeof(msg_info.scsi), M_WAITOK); 2116 break; 2117 case CTL_ACTION_OVERLAP_TAG: 2118 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2119 mtx_unlock(&lun->lun_lock); 2120 retval = 1; 2121 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2122 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2123 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2124 msg_info.hdr.serializing_sc = NULL; 2125 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2126 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2127 sizeof(msg_info.scsi), M_WAITOK); 2128 break; 2129 case CTL_ACTION_ERROR: 2130 default: 2131 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2132 mtx_unlock(&lun->lun_lock); 2133 retval = 1; 2134 2135 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2136 /*retry_count*/ 0); 2137 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2138 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2139 msg_info.hdr.serializing_sc = NULL; 2140 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2141 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2142 sizeof(msg_info.scsi), M_WAITOK); 2143 break; 2144 } 2145 return (retval); 2146} 2147 2148/* 2149 * Returns 0 for success, errno for failure. 2150 */ 2151static int 2152ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2153 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2154{ 2155 union ctl_io *io; 2156 int retval; 2157 2158 retval = 0; 2159 2160 mtx_lock(&lun->lun_lock); 2161 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2162 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2163 ooa_links)) { 2164 struct ctl_ooa_entry *entry; 2165 2166 /* 2167 * If we've got more than we can fit, just count the 2168 * remaining entries. 2169 */ 2170 if (*cur_fill_num >= ooa_hdr->alloc_num) 2171 continue; 2172 2173 entry = &kern_entries[*cur_fill_num]; 2174 2175 entry->tag_num = io->scsiio.tag_num; 2176 entry->lun_num = lun->lun; 2177#ifdef CTL_TIME_IO 2178 entry->start_bt = io->io_hdr.start_bt; 2179#endif 2180 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2181 entry->cdb_len = io->scsiio.cdb_len; 2182 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2183 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2184 2185 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2186 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2187 2188 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2189 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2190 2191 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2192 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2193 2194 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2195 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2196 } 2197 mtx_unlock(&lun->lun_lock); 2198 2199 return (retval); 2200} 2201 2202static void * 2203ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2204 size_t error_str_len) 2205{ 2206 void *kptr; 2207 2208 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2209 2210 if (copyin(user_addr, kptr, len) != 0) { 2211 snprintf(error_str, error_str_len, "Error copying %d bytes " 2212 "from user address %p to kernel address %p", len, 2213 user_addr, kptr); 2214 free(kptr, M_CTL); 2215 return (NULL); 2216 } 2217 2218 return (kptr); 2219} 2220 2221static void 2222ctl_free_args(int num_args, struct ctl_be_arg *args) 2223{ 2224 int i; 2225 2226 if (args == NULL) 2227 return; 2228 2229 for (i = 0; i < num_args; i++) { 2230 free(args[i].kname, M_CTL); 2231 free(args[i].kvalue, M_CTL); 2232 } 2233 2234 free(args, M_CTL); 2235} 2236 2237static struct ctl_be_arg * 2238ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2239 char *error_str, size_t error_str_len) 2240{ 2241 struct ctl_be_arg *args; 2242 int i; 2243 2244 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2245 error_str, error_str_len); 2246 2247 if (args == NULL) 2248 goto bailout; 2249 2250 for (i = 0; i < num_args; i++) { 2251 args[i].kname = NULL; 2252 args[i].kvalue = NULL; 2253 } 2254 2255 for (i = 0; i < num_args; i++) { 2256 uint8_t *tmpptr; 2257 2258 args[i].kname = ctl_copyin_alloc(args[i].name, 2259 args[i].namelen, error_str, error_str_len); 2260 if (args[i].kname == NULL) 2261 goto bailout; 2262 2263 if (args[i].kname[args[i].namelen - 1] != '\0') { 2264 snprintf(error_str, error_str_len, "Argument %d " 2265 "name is not NUL-terminated", i); 2266 goto bailout; 2267 } 2268 2269 if (args[i].flags & CTL_BEARG_RD) { 2270 tmpptr = ctl_copyin_alloc(args[i].value, 2271 args[i].vallen, error_str, error_str_len); 2272 if (tmpptr == NULL) 2273 goto bailout; 2274 if ((args[i].flags & CTL_BEARG_ASCII) 2275 && (tmpptr[args[i].vallen - 1] != '\0')) { 2276 snprintf(error_str, error_str_len, "Argument " 2277 "%d value is not NUL-terminated", i); 2278 goto bailout; 2279 } 2280 args[i].kvalue = tmpptr; 2281 } else { 2282 args[i].kvalue = malloc(args[i].vallen, 2283 M_CTL, M_WAITOK | M_ZERO); 2284 } 2285 } 2286 2287 return (args); 2288bailout: 2289 2290 ctl_free_args(num_args, args); 2291 2292 return (NULL); 2293} 2294 2295static void 2296ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2297{ 2298 int i; 2299 2300 for (i = 0; i < num_args; i++) { 2301 if (args[i].flags & CTL_BEARG_WR) 2302 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2303 } 2304} 2305 2306/* 2307 * Escape characters that are illegal or not recommended in XML. 2308 */ 2309int 2310ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2311{ 2312 char *end = str + size; 2313 int retval; 2314 2315 retval = 0; 2316 2317 for (; *str && str < end; str++) { 2318 switch (*str) { 2319 case '&': 2320 retval = sbuf_printf(sb, "&"); 2321 break; 2322 case '>': 2323 retval = sbuf_printf(sb, ">"); 2324 break; 2325 case '<': 2326 retval = sbuf_printf(sb, "<"); 2327 break; 2328 default: 2329 retval = sbuf_putc(sb, *str); 2330 break; 2331 } 2332 2333 if (retval != 0) 2334 break; 2335 2336 } 2337 2338 return (retval); 2339} 2340 2341static void 2342ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2343{ 2344 struct scsi_vpd_id_descriptor *desc; 2345 int i; 2346 2347 if (id == NULL || id->len < 4) 2348 return; 2349 desc = (struct scsi_vpd_id_descriptor *)id->data; 2350 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2351 case SVPD_ID_TYPE_T10: 2352 sbuf_printf(sb, "t10."); 2353 break; 2354 case SVPD_ID_TYPE_EUI64: 2355 sbuf_printf(sb, "eui."); 2356 break; 2357 case SVPD_ID_TYPE_NAA: 2358 sbuf_printf(sb, "naa."); 2359 break; 2360 case SVPD_ID_TYPE_SCSI_NAME: 2361 break; 2362 } 2363 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2364 case SVPD_ID_CODESET_BINARY: 2365 for (i = 0; i < desc->length; i++) 2366 sbuf_printf(sb, "%02x", desc->identifier[i]); 2367 break; 2368 case SVPD_ID_CODESET_ASCII: 2369 sbuf_printf(sb, "%.*s", (int)desc->length, 2370 (char *)desc->identifier); 2371 break; 2372 case SVPD_ID_CODESET_UTF8: 2373 sbuf_printf(sb, "%s", (char *)desc->identifier); 2374 break; 2375 } 2376} 2377 2378static int 2379ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2380 struct thread *td) 2381{ 2382 struct ctl_softc *softc; 2383 struct ctl_lun *lun; 2384 int retval; 2385 2386 softc = control_softc; 2387 2388 retval = 0; 2389 2390 switch (cmd) { 2391 case CTL_IO: 2392 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2393 break; 2394 case CTL_ENABLE_PORT: 2395 case CTL_DISABLE_PORT: 2396 case CTL_SET_PORT_WWNS: { 2397 struct ctl_port *port; 2398 struct ctl_port_entry *entry; 2399 2400 entry = (struct ctl_port_entry *)addr; 2401 2402 mtx_lock(&softc->ctl_lock); 2403 STAILQ_FOREACH(port, &softc->port_list, links) { 2404 int action, done; 2405 2406 if (port->targ_port < softc->port_min || 2407 port->targ_port >= softc->port_max) 2408 continue; 2409 2410 action = 0; 2411 done = 0; 2412 if ((entry->port_type == CTL_PORT_NONE) 2413 && (entry->targ_port == port->targ_port)) { 2414 /* 2415 * If the user only wants to enable or 2416 * disable or set WWNs on a specific port, 2417 * do the operation and we're done. 2418 */ 2419 action = 1; 2420 done = 1; 2421 } else if (entry->port_type & port->port_type) { 2422 /* 2423 * Compare the user's type mask with the 2424 * particular frontend type to see if we 2425 * have a match. 2426 */ 2427 action = 1; 2428 done = 0; 2429 2430 /* 2431 * Make sure the user isn't trying to set 2432 * WWNs on multiple ports at the same time. 2433 */ 2434 if (cmd == CTL_SET_PORT_WWNS) { 2435 printf("%s: Can't set WWNs on " 2436 "multiple ports\n", __func__); 2437 retval = EINVAL; 2438 break; 2439 } 2440 } 2441 if (action == 0) 2442 continue; 2443 2444 /* 2445 * XXX KDM we have to drop the lock here, because 2446 * the online/offline operations can potentially 2447 * block. We need to reference count the frontends 2448 * so they can't go away, 2449 */ 2450 if (cmd == CTL_ENABLE_PORT) { 2451 mtx_unlock(&softc->ctl_lock); 2452 ctl_port_online(port); 2453 mtx_lock(&softc->ctl_lock); 2454 } else if (cmd == CTL_DISABLE_PORT) { 2455 mtx_unlock(&softc->ctl_lock); 2456 ctl_port_offline(port); 2457 mtx_lock(&softc->ctl_lock); 2458 } else if (cmd == CTL_SET_PORT_WWNS) { 2459 ctl_port_set_wwns(port, 2460 (entry->flags & CTL_PORT_WWNN_VALID) ? 2461 1 : 0, entry->wwnn, 2462 (entry->flags & CTL_PORT_WWPN_VALID) ? 2463 1 : 0, entry->wwpn); 2464 } 2465 if (done != 0) 2466 break; 2467 } 2468 mtx_unlock(&softc->ctl_lock); 2469 break; 2470 } 2471 case CTL_GET_PORT_LIST: { 2472 struct ctl_port *port; 2473 struct ctl_port_list *list; 2474 int i; 2475 2476 list = (struct ctl_port_list *)addr; 2477 2478 if (list->alloc_len != (list->alloc_num * 2479 sizeof(struct ctl_port_entry))) { 2480 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2481 "alloc_num %u * sizeof(struct ctl_port_entry) " 2482 "%zu\n", __func__, list->alloc_len, 2483 list->alloc_num, sizeof(struct ctl_port_entry)); 2484 retval = EINVAL; 2485 break; 2486 } 2487 list->fill_len = 0; 2488 list->fill_num = 0; 2489 list->dropped_num = 0; 2490 i = 0; 2491 mtx_lock(&softc->ctl_lock); 2492 STAILQ_FOREACH(port, &softc->port_list, links) { 2493 struct ctl_port_entry entry, *list_entry; 2494 2495 if (list->fill_num >= list->alloc_num) { 2496 list->dropped_num++; 2497 continue; 2498 } 2499 2500 entry.port_type = port->port_type; 2501 strlcpy(entry.port_name, port->port_name, 2502 sizeof(entry.port_name)); 2503 entry.targ_port = port->targ_port; 2504 entry.physical_port = port->physical_port; 2505 entry.virtual_port = port->virtual_port; 2506 entry.wwnn = port->wwnn; 2507 entry.wwpn = port->wwpn; 2508 if (port->status & CTL_PORT_STATUS_ONLINE) 2509 entry.online = 1; 2510 else 2511 entry.online = 0; 2512 2513 list_entry = &list->entries[i]; 2514 2515 retval = copyout(&entry, list_entry, sizeof(entry)); 2516 if (retval != 0) { 2517 printf("%s: CTL_GET_PORT_LIST: copyout " 2518 "returned %d\n", __func__, retval); 2519 break; 2520 } 2521 i++; 2522 list->fill_num++; 2523 list->fill_len += sizeof(entry); 2524 } 2525 mtx_unlock(&softc->ctl_lock); 2526 2527 /* 2528 * If this is non-zero, we had a copyout fault, so there's 2529 * probably no point in attempting to set the status inside 2530 * the structure. 2531 */ 2532 if (retval != 0) 2533 break; 2534 2535 if (list->dropped_num > 0) 2536 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2537 else 2538 list->status = CTL_PORT_LIST_OK; 2539 break; 2540 } 2541 case CTL_DUMP_OOA: { 2542 union ctl_io *io; 2543 char printbuf[128]; 2544 struct sbuf sb; 2545 2546 mtx_lock(&softc->ctl_lock); 2547 printf("Dumping OOA queues:\n"); 2548 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2549 mtx_lock(&lun->lun_lock); 2550 for (io = (union ctl_io *)TAILQ_FIRST( 2551 &lun->ooa_queue); io != NULL; 2552 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2553 ooa_links)) { 2554 sbuf_new(&sb, printbuf, sizeof(printbuf), 2555 SBUF_FIXEDLEN); 2556 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2557 (intmax_t)lun->lun, 2558 io->scsiio.tag_num, 2559 (io->io_hdr.flags & 2560 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2561 (io->io_hdr.flags & 2562 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2563 (io->io_hdr.flags & 2564 CTL_FLAG_ABORT) ? " ABORT" : "", 2565 (io->io_hdr.flags & 2566 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2567 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2568 sbuf_finish(&sb); 2569 printf("%s\n", sbuf_data(&sb)); 2570 } 2571 mtx_unlock(&lun->lun_lock); 2572 } 2573 printf("OOA queues dump done\n"); 2574 mtx_unlock(&softc->ctl_lock); 2575 break; 2576 } 2577 case CTL_GET_OOA: { 2578 struct ctl_ooa *ooa_hdr; 2579 struct ctl_ooa_entry *entries; 2580 uint32_t cur_fill_num; 2581 2582 ooa_hdr = (struct ctl_ooa *)addr; 2583 2584 if ((ooa_hdr->alloc_len == 0) 2585 || (ooa_hdr->alloc_num == 0)) { 2586 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2587 "must be non-zero\n", __func__, 2588 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2589 retval = EINVAL; 2590 break; 2591 } 2592 2593 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2594 sizeof(struct ctl_ooa_entry))) { 2595 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2596 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2597 __func__, ooa_hdr->alloc_len, 2598 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2599 retval = EINVAL; 2600 break; 2601 } 2602 2603 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2604 if (entries == NULL) { 2605 printf("%s: could not allocate %d bytes for OOA " 2606 "dump\n", __func__, ooa_hdr->alloc_len); 2607 retval = ENOMEM; 2608 break; 2609 } 2610 2611 mtx_lock(&softc->ctl_lock); 2612 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2613 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2614 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2615 mtx_unlock(&softc->ctl_lock); 2616 free(entries, M_CTL); 2617 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2618 __func__, (uintmax_t)ooa_hdr->lun_num); 2619 retval = EINVAL; 2620 break; 2621 } 2622 2623 cur_fill_num = 0; 2624 2625 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2626 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2627 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2628 ooa_hdr, entries); 2629 if (retval != 0) 2630 break; 2631 } 2632 if (retval != 0) { 2633 mtx_unlock(&softc->ctl_lock); 2634 free(entries, M_CTL); 2635 break; 2636 } 2637 } else { 2638 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2639 2640 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2641 entries); 2642 } 2643 mtx_unlock(&softc->ctl_lock); 2644 2645 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2646 ooa_hdr->fill_len = ooa_hdr->fill_num * 2647 sizeof(struct ctl_ooa_entry); 2648 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2649 if (retval != 0) { 2650 printf("%s: error copying out %d bytes for OOA dump\n", 2651 __func__, ooa_hdr->fill_len); 2652 } 2653 2654 getbintime(&ooa_hdr->cur_bt); 2655 2656 if (cur_fill_num > ooa_hdr->alloc_num) { 2657 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2658 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2659 } else { 2660 ooa_hdr->dropped_num = 0; 2661 ooa_hdr->status = CTL_OOA_OK; 2662 } 2663 2664 free(entries, M_CTL); 2665 break; 2666 } 2667 case CTL_CHECK_OOA: { 2668 union ctl_io *io; 2669 struct ctl_ooa_info *ooa_info; 2670 2671 2672 ooa_info = (struct ctl_ooa_info *)addr; 2673 2674 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2675 ooa_info->status = CTL_OOA_INVALID_LUN; 2676 break; 2677 } 2678 mtx_lock(&softc->ctl_lock); 2679 lun = softc->ctl_luns[ooa_info->lun_id]; 2680 if (lun == NULL) { 2681 mtx_unlock(&softc->ctl_lock); 2682 ooa_info->status = CTL_OOA_INVALID_LUN; 2683 break; 2684 } 2685 mtx_lock(&lun->lun_lock); 2686 mtx_unlock(&softc->ctl_lock); 2687 ooa_info->num_entries = 0; 2688 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2689 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2690 &io->io_hdr, ooa_links)) { 2691 ooa_info->num_entries++; 2692 } 2693 mtx_unlock(&lun->lun_lock); 2694 2695 ooa_info->status = CTL_OOA_SUCCESS; 2696 2697 break; 2698 } 2699 case CTL_DELAY_IO: { 2700 struct ctl_io_delay_info *delay_info; 2701 2702 delay_info = (struct ctl_io_delay_info *)addr; 2703 2704#ifdef CTL_IO_DELAY 2705 mtx_lock(&softc->ctl_lock); 2706 2707 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2708 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2709 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2710 } else { 2711 lun = softc->ctl_luns[delay_info->lun_id]; 2712 mtx_lock(&lun->lun_lock); 2713 2714 delay_info->status = CTL_DELAY_STATUS_OK; 2715 2716 switch (delay_info->delay_type) { 2717 case CTL_DELAY_TYPE_CONT: 2718 break; 2719 case CTL_DELAY_TYPE_ONESHOT: 2720 break; 2721 default: 2722 delay_info->status = 2723 CTL_DELAY_STATUS_INVALID_TYPE; 2724 break; 2725 } 2726 2727 switch (delay_info->delay_loc) { 2728 case CTL_DELAY_LOC_DATAMOVE: 2729 lun->delay_info.datamove_type = 2730 delay_info->delay_type; 2731 lun->delay_info.datamove_delay = 2732 delay_info->delay_secs; 2733 break; 2734 case CTL_DELAY_LOC_DONE: 2735 lun->delay_info.done_type = 2736 delay_info->delay_type; 2737 lun->delay_info.done_delay = 2738 delay_info->delay_secs; 2739 break; 2740 default: 2741 delay_info->status = 2742 CTL_DELAY_STATUS_INVALID_LOC; 2743 break; 2744 } 2745 mtx_unlock(&lun->lun_lock); 2746 } 2747 2748 mtx_unlock(&softc->ctl_lock); 2749#else 2750 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2751#endif /* CTL_IO_DELAY */ 2752 break; 2753 } 2754 case CTL_REALSYNC_SET: { 2755 int *syncstate; 2756 2757 syncstate = (int *)addr; 2758 2759 mtx_lock(&softc->ctl_lock); 2760 switch (*syncstate) { 2761 case 0: 2762 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2763 break; 2764 case 1: 2765 softc->flags |= CTL_FLAG_REAL_SYNC; 2766 break; 2767 default: 2768 retval = EINVAL; 2769 break; 2770 } 2771 mtx_unlock(&softc->ctl_lock); 2772 break; 2773 } 2774 case CTL_REALSYNC_GET: { 2775 int *syncstate; 2776 2777 syncstate = (int*)addr; 2778 2779 mtx_lock(&softc->ctl_lock); 2780 if (softc->flags & CTL_FLAG_REAL_SYNC) 2781 *syncstate = 1; 2782 else 2783 *syncstate = 0; 2784 mtx_unlock(&softc->ctl_lock); 2785 2786 break; 2787 } 2788 case CTL_SETSYNC: 2789 case CTL_GETSYNC: { 2790 struct ctl_sync_info *sync_info; 2791 2792 sync_info = (struct ctl_sync_info *)addr; 2793 2794 mtx_lock(&softc->ctl_lock); 2795 lun = softc->ctl_luns[sync_info->lun_id]; 2796 if (lun == NULL) { 2797 mtx_unlock(&softc->ctl_lock); 2798 sync_info->status = CTL_GS_SYNC_NO_LUN; 2799 break; 2800 } 2801 /* 2802 * Get or set the sync interval. We're not bounds checking 2803 * in the set case, hopefully the user won't do something 2804 * silly. 2805 */ 2806 mtx_lock(&lun->lun_lock); 2807 mtx_unlock(&softc->ctl_lock); 2808 if (cmd == CTL_GETSYNC) 2809 sync_info->sync_interval = lun->sync_interval; 2810 else 2811 lun->sync_interval = sync_info->sync_interval; 2812 mtx_unlock(&lun->lun_lock); 2813 2814 sync_info->status = CTL_GS_SYNC_OK; 2815 2816 break; 2817 } 2818 case CTL_GETSTATS: { 2819 struct ctl_stats *stats; 2820 int i; 2821 2822 stats = (struct ctl_stats *)addr; 2823 2824 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2825 stats->alloc_len) { 2826 stats->status = CTL_SS_NEED_MORE_SPACE; 2827 stats->num_luns = softc->num_luns; 2828 break; 2829 } 2830 /* 2831 * XXX KDM no locking here. If the LUN list changes, 2832 * things can blow up. 2833 */ 2834 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2835 i++, lun = STAILQ_NEXT(lun, links)) { 2836 retval = copyout(&lun->stats, &stats->lun_stats[i], 2837 sizeof(lun->stats)); 2838 if (retval != 0) 2839 break; 2840 } 2841 stats->num_luns = softc->num_luns; 2842 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2843 softc->num_luns; 2844 stats->status = CTL_SS_OK; 2845#ifdef CTL_TIME_IO 2846 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2847#else 2848 stats->flags = CTL_STATS_FLAG_NONE; 2849#endif 2850 getnanouptime(&stats->timestamp); 2851 break; 2852 } 2853 case CTL_ERROR_INJECT: { 2854 struct ctl_error_desc *err_desc, *new_err_desc; 2855 2856 err_desc = (struct ctl_error_desc *)addr; 2857 2858 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2859 M_WAITOK | M_ZERO); 2860 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2861 2862 mtx_lock(&softc->ctl_lock); 2863 lun = softc->ctl_luns[err_desc->lun_id]; 2864 if (lun == NULL) { 2865 mtx_unlock(&softc->ctl_lock); 2866 free(new_err_desc, M_CTL); 2867 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2868 __func__, (uintmax_t)err_desc->lun_id); 2869 retval = EINVAL; 2870 break; 2871 } 2872 mtx_lock(&lun->lun_lock); 2873 mtx_unlock(&softc->ctl_lock); 2874 2875 /* 2876 * We could do some checking here to verify the validity 2877 * of the request, but given the complexity of error 2878 * injection requests, the checking logic would be fairly 2879 * complex. 2880 * 2881 * For now, if the request is invalid, it just won't get 2882 * executed and might get deleted. 2883 */ 2884 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2885 2886 /* 2887 * XXX KDM check to make sure the serial number is unique, 2888 * in case we somehow manage to wrap. That shouldn't 2889 * happen for a very long time, but it's the right thing to 2890 * do. 2891 */ 2892 new_err_desc->serial = lun->error_serial; 2893 err_desc->serial = lun->error_serial; 2894 lun->error_serial++; 2895 2896 mtx_unlock(&lun->lun_lock); 2897 break; 2898 } 2899 case CTL_ERROR_INJECT_DELETE: { 2900 struct ctl_error_desc *delete_desc, *desc, *desc2; 2901 int delete_done; 2902 2903 delete_desc = (struct ctl_error_desc *)addr; 2904 delete_done = 0; 2905 2906 mtx_lock(&softc->ctl_lock); 2907 lun = softc->ctl_luns[delete_desc->lun_id]; 2908 if (lun == NULL) { 2909 mtx_unlock(&softc->ctl_lock); 2910 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2911 __func__, (uintmax_t)delete_desc->lun_id); 2912 retval = EINVAL; 2913 break; 2914 } 2915 mtx_lock(&lun->lun_lock); 2916 mtx_unlock(&softc->ctl_lock); 2917 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2918 if (desc->serial != delete_desc->serial) 2919 continue; 2920 2921 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2922 links); 2923 free(desc, M_CTL); 2924 delete_done = 1; 2925 } 2926 mtx_unlock(&lun->lun_lock); 2927 if (delete_done == 0) { 2928 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2929 "error serial %ju on LUN %u\n", __func__, 2930 delete_desc->serial, delete_desc->lun_id); 2931 retval = EINVAL; 2932 break; 2933 } 2934 break; 2935 } 2936 case CTL_DUMP_STRUCTS: { 2937 int i, j, k; 2938 struct ctl_port *port; 2939 struct ctl_frontend *fe; 2940 2941 mtx_lock(&softc->ctl_lock); 2942 printf("CTL Persistent Reservation information start:\n"); 2943 for (i = 0; i < CTL_MAX_LUNS; i++) { 2944 lun = softc->ctl_luns[i]; 2945 2946 if ((lun == NULL) 2947 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2948 continue; 2949 2950 for (j = 0; j < CTL_MAX_PORTS; j++) { 2951 if (lun->pr_keys[j] == NULL) 2952 continue; 2953 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2954 if (lun->pr_keys[j][k] == 0) 2955 continue; 2956 printf(" LUN %d port %d iid %d key " 2957 "%#jx\n", i, j, k, 2958 (uintmax_t)lun->pr_keys[j][k]); 2959 } 2960 } 2961 } 2962 printf("CTL Persistent Reservation information end\n"); 2963 printf("CTL Ports:\n"); 2964 STAILQ_FOREACH(port, &softc->port_list, links) { 2965 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2966 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2967 port->frontend->name, port->port_type, 2968 port->physical_port, port->virtual_port, 2969 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2970 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2971 if (port->wwpn_iid[j].in_use == 0 && 2972 port->wwpn_iid[j].wwpn == 0 && 2973 port->wwpn_iid[j].name == NULL) 2974 continue; 2975 2976 printf(" iid %u use %d WWPN %#jx '%s'\n", 2977 j, port->wwpn_iid[j].in_use, 2978 (uintmax_t)port->wwpn_iid[j].wwpn, 2979 port->wwpn_iid[j].name); 2980 } 2981 } 2982 printf("CTL Port information end\n"); 2983 mtx_unlock(&softc->ctl_lock); 2984 /* 2985 * XXX KDM calling this without a lock. We'd likely want 2986 * to drop the lock before calling the frontend's dump 2987 * routine anyway. 2988 */ 2989 printf("CTL Frontends:\n"); 2990 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2991 printf(" Frontend '%s'\n", fe->name); 2992 if (fe->fe_dump != NULL) 2993 fe->fe_dump(); 2994 } 2995 printf("CTL Frontend information end\n"); 2996 break; 2997 } 2998 case CTL_LUN_REQ: { 2999 struct ctl_lun_req *lun_req; 3000 struct ctl_backend_driver *backend; 3001 3002 lun_req = (struct ctl_lun_req *)addr; 3003 3004 backend = ctl_backend_find(lun_req->backend); 3005 if (backend == NULL) { 3006 lun_req->status = CTL_LUN_ERROR; 3007 snprintf(lun_req->error_str, 3008 sizeof(lun_req->error_str), 3009 "Backend \"%s\" not found.", 3010 lun_req->backend); 3011 break; 3012 } 3013 if (lun_req->num_be_args > 0) { 3014 lun_req->kern_be_args = ctl_copyin_args( 3015 lun_req->num_be_args, 3016 lun_req->be_args, 3017 lun_req->error_str, 3018 sizeof(lun_req->error_str)); 3019 if (lun_req->kern_be_args == NULL) { 3020 lun_req->status = CTL_LUN_ERROR; 3021 break; 3022 } 3023 } 3024 3025 retval = backend->ioctl(dev, cmd, addr, flag, td); 3026 3027 if (lun_req->num_be_args > 0) { 3028 ctl_copyout_args(lun_req->num_be_args, 3029 lun_req->kern_be_args); 3030 ctl_free_args(lun_req->num_be_args, 3031 lun_req->kern_be_args); 3032 } 3033 break; 3034 } 3035 case CTL_LUN_LIST: { 3036 struct sbuf *sb; 3037 struct ctl_lun_list *list; 3038 struct ctl_option *opt; 3039 3040 list = (struct ctl_lun_list *)addr; 3041 3042 /* 3043 * Allocate a fixed length sbuf here, based on the length 3044 * of the user's buffer. We could allocate an auto-extending 3045 * buffer, and then tell the user how much larger our 3046 * amount of data is than his buffer, but that presents 3047 * some problems: 3048 * 3049 * 1. The sbuf(9) routines use a blocking malloc, and so 3050 * we can't hold a lock while calling them with an 3051 * auto-extending buffer. 3052 * 3053 * 2. There is not currently a LUN reference counting 3054 * mechanism, outside of outstanding transactions on 3055 * the LUN's OOA queue. So a LUN could go away on us 3056 * while we're getting the LUN number, backend-specific 3057 * information, etc. Thus, given the way things 3058 * currently work, we need to hold the CTL lock while 3059 * grabbing LUN information. 3060 * 3061 * So, from the user's standpoint, the best thing to do is 3062 * allocate what he thinks is a reasonable buffer length, 3063 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3064 * double the buffer length and try again. (And repeat 3065 * that until he succeeds.) 3066 */ 3067 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3068 if (sb == NULL) { 3069 list->status = CTL_LUN_LIST_ERROR; 3070 snprintf(list->error_str, sizeof(list->error_str), 3071 "Unable to allocate %d bytes for LUN list", 3072 list->alloc_len); 3073 break; 3074 } 3075 3076 sbuf_printf(sb, "<ctllunlist>\n"); 3077 3078 mtx_lock(&softc->ctl_lock); 3079 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3080 mtx_lock(&lun->lun_lock); 3081 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3082 (uintmax_t)lun->lun); 3083 3084 /* 3085 * Bail out as soon as we see that we've overfilled 3086 * the buffer. 3087 */ 3088 if (retval != 0) 3089 break; 3090 3091 retval = sbuf_printf(sb, "\t<backend_type>%s" 3092 "</backend_type>\n", 3093 (lun->backend == NULL) ? "none" : 3094 lun->backend->name); 3095 3096 if (retval != 0) 3097 break; 3098 3099 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3100 lun->be_lun->lun_type); 3101 3102 if (retval != 0) 3103 break; 3104 3105 if (lun->backend == NULL) { 3106 retval = sbuf_printf(sb, "</lun>\n"); 3107 if (retval != 0) 3108 break; 3109 continue; 3110 } 3111 3112 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3113 (lun->be_lun->maxlba > 0) ? 3114 lun->be_lun->maxlba + 1 : 0); 3115 3116 if (retval != 0) 3117 break; 3118 3119 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3120 lun->be_lun->blocksize); 3121 3122 if (retval != 0) 3123 break; 3124 3125 retval = sbuf_printf(sb, "\t<serial_number>"); 3126 3127 if (retval != 0) 3128 break; 3129 3130 retval = ctl_sbuf_printf_esc(sb, 3131 lun->be_lun->serial_num, 3132 sizeof(lun->be_lun->serial_num)); 3133 3134 if (retval != 0) 3135 break; 3136 3137 retval = sbuf_printf(sb, "</serial_number>\n"); 3138 3139 if (retval != 0) 3140 break; 3141 3142 retval = sbuf_printf(sb, "\t<device_id>"); 3143 3144 if (retval != 0) 3145 break; 3146 3147 retval = ctl_sbuf_printf_esc(sb, 3148 lun->be_lun->device_id, 3149 sizeof(lun->be_lun->device_id)); 3150 3151 if (retval != 0) 3152 break; 3153 3154 retval = sbuf_printf(sb, "</device_id>\n"); 3155 3156 if (retval != 0) 3157 break; 3158 3159 if (lun->backend->lun_info != NULL) { 3160 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3161 if (retval != 0) 3162 break; 3163 } 3164 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3165 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3166 opt->name, opt->value, opt->name); 3167 if (retval != 0) 3168 break; 3169 } 3170 3171 retval = sbuf_printf(sb, "</lun>\n"); 3172 3173 if (retval != 0) 3174 break; 3175 mtx_unlock(&lun->lun_lock); 3176 } 3177 if (lun != NULL) 3178 mtx_unlock(&lun->lun_lock); 3179 mtx_unlock(&softc->ctl_lock); 3180 3181 if ((retval != 0) 3182 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3183 retval = 0; 3184 sbuf_delete(sb); 3185 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3186 snprintf(list->error_str, sizeof(list->error_str), 3187 "Out of space, %d bytes is too small", 3188 list->alloc_len); 3189 break; 3190 } 3191 3192 sbuf_finish(sb); 3193 3194 retval = copyout(sbuf_data(sb), list->lun_xml, 3195 sbuf_len(sb) + 1); 3196 3197 list->fill_len = sbuf_len(sb) + 1; 3198 list->status = CTL_LUN_LIST_OK; 3199 sbuf_delete(sb); 3200 break; 3201 } 3202 case CTL_ISCSI: { 3203 struct ctl_iscsi *ci; 3204 struct ctl_frontend *fe; 3205 3206 ci = (struct ctl_iscsi *)addr; 3207 3208 fe = ctl_frontend_find("iscsi"); 3209 if (fe == NULL) { 3210 ci->status = CTL_ISCSI_ERROR; 3211 snprintf(ci->error_str, sizeof(ci->error_str), 3212 "Frontend \"iscsi\" not found."); 3213 break; 3214 } 3215 3216 retval = fe->ioctl(dev, cmd, addr, flag, td); 3217 break; 3218 } 3219 case CTL_PORT_REQ: { 3220 struct ctl_req *req; 3221 struct ctl_frontend *fe; 3222 3223 req = (struct ctl_req *)addr; 3224 3225 fe = ctl_frontend_find(req->driver); 3226 if (fe == NULL) { 3227 req->status = CTL_LUN_ERROR; 3228 snprintf(req->error_str, sizeof(req->error_str), 3229 "Frontend \"%s\" not found.", req->driver); 3230 break; 3231 } 3232 if (req->num_args > 0) { 3233 req->kern_args = ctl_copyin_args(req->num_args, 3234 req->args, req->error_str, sizeof(req->error_str)); 3235 if (req->kern_args == NULL) { 3236 req->status = CTL_LUN_ERROR; 3237 break; 3238 } 3239 } 3240 3241 if (fe->ioctl) 3242 retval = fe->ioctl(dev, cmd, addr, flag, td); 3243 else 3244 retval = ENODEV; 3245 3246 if (req->num_args > 0) { 3247 ctl_copyout_args(req->num_args, req->kern_args); 3248 ctl_free_args(req->num_args, req->kern_args); 3249 } 3250 break; 3251 } 3252 case CTL_PORT_LIST: { 3253 struct sbuf *sb; 3254 struct ctl_port *port; 3255 struct ctl_lun_list *list; 3256 struct ctl_option *opt; 3257 int j; 3258 uint32_t plun; 3259 3260 list = (struct ctl_lun_list *)addr; 3261 3262 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3263 if (sb == NULL) { 3264 list->status = CTL_LUN_LIST_ERROR; 3265 snprintf(list->error_str, sizeof(list->error_str), 3266 "Unable to allocate %d bytes for LUN list", 3267 list->alloc_len); 3268 break; 3269 } 3270 3271 sbuf_printf(sb, "<ctlportlist>\n"); 3272 3273 mtx_lock(&softc->ctl_lock); 3274 STAILQ_FOREACH(port, &softc->port_list, links) { 3275 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3276 (uintmax_t)port->targ_port); 3277 3278 /* 3279 * Bail out as soon as we see that we've overfilled 3280 * the buffer. 3281 */ 3282 if (retval != 0) 3283 break; 3284 3285 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3286 "</frontend_type>\n", port->frontend->name); 3287 if (retval != 0) 3288 break; 3289 3290 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3291 port->port_type); 3292 if (retval != 0) 3293 break; 3294 3295 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3296 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3297 if (retval != 0) 3298 break; 3299 3300 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3301 port->port_name); 3302 if (retval != 0) 3303 break; 3304 3305 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3306 port->physical_port); 3307 if (retval != 0) 3308 break; 3309 3310 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3311 port->virtual_port); 3312 if (retval != 0) 3313 break; 3314 3315 if (port->target_devid != NULL) { 3316 sbuf_printf(sb, "\t<target>"); 3317 ctl_id_sbuf(port->target_devid, sb); 3318 sbuf_printf(sb, "</target>\n"); 3319 } 3320 3321 if (port->port_devid != NULL) { 3322 sbuf_printf(sb, "\t<port>"); 3323 ctl_id_sbuf(port->port_devid, sb); 3324 sbuf_printf(sb, "</port>\n"); 3325 } 3326 3327 if (port->port_info != NULL) { 3328 retval = port->port_info(port->onoff_arg, sb); 3329 if (retval != 0) 3330 break; 3331 } 3332 STAILQ_FOREACH(opt, &port->options, links) { 3333 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3334 opt->name, opt->value, opt->name); 3335 if (retval != 0) 3336 break; 3337 } 3338 3339 if (port->lun_map != NULL) { 3340 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3341 for (j = 0; j < CTL_MAX_LUNS; j++) { 3342 plun = ctl_lun_map_from_port(port, j); 3343 if (plun >= CTL_MAX_LUNS) 3344 continue; 3345 sbuf_printf(sb, 3346 "\t<lun id=\"%u\">%u</lun>\n", 3347 j, plun); 3348 } 3349 } 3350 3351 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3352 if (port->wwpn_iid[j].in_use == 0 || 3353 (port->wwpn_iid[j].wwpn == 0 && 3354 port->wwpn_iid[j].name == NULL)) 3355 continue; 3356 3357 if (port->wwpn_iid[j].name != NULL) 3358 retval = sbuf_printf(sb, 3359 "\t<initiator id=\"%u\">%s</initiator>\n", 3360 j, port->wwpn_iid[j].name); 3361 else 3362 retval = sbuf_printf(sb, 3363 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3364 j, port->wwpn_iid[j].wwpn); 3365 if (retval != 0) 3366 break; 3367 } 3368 if (retval != 0) 3369 break; 3370 3371 retval = sbuf_printf(sb, "</targ_port>\n"); 3372 if (retval != 0) 3373 break; 3374 } 3375 mtx_unlock(&softc->ctl_lock); 3376 3377 if ((retval != 0) 3378 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3379 retval = 0; 3380 sbuf_delete(sb); 3381 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3382 snprintf(list->error_str, sizeof(list->error_str), 3383 "Out of space, %d bytes is too small", 3384 list->alloc_len); 3385 break; 3386 } 3387 3388 sbuf_finish(sb); 3389 3390 retval = copyout(sbuf_data(sb), list->lun_xml, 3391 sbuf_len(sb) + 1); 3392 3393 list->fill_len = sbuf_len(sb) + 1; 3394 list->status = CTL_LUN_LIST_OK; 3395 sbuf_delete(sb); 3396 break; 3397 } 3398 case CTL_LUN_MAP: { 3399 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3400 struct ctl_port *port; 3401 3402 mtx_lock(&softc->ctl_lock); 3403 if (lm->port < softc->port_min || 3404 lm->port >= softc->port_max || 3405 (port = softc->ctl_ports[lm->port]) == NULL) { 3406 mtx_unlock(&softc->ctl_lock); 3407 return (ENXIO); 3408 } 3409 if (port->status & CTL_PORT_STATUS_ONLINE) { 3410 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3411 if (ctl_lun_map_to_port(port, lun->lun) >= 3412 CTL_MAX_LUNS) 3413 continue; 3414 mtx_lock(&lun->lun_lock); 3415 ctl_est_ua_port(lun, lm->port, -1, 3416 CTL_UA_LUN_CHANGE); 3417 mtx_unlock(&lun->lun_lock); 3418 } 3419 } 3420 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3421 if (lm->plun < CTL_MAX_LUNS) { 3422 if (lm->lun == UINT32_MAX) 3423 retval = ctl_lun_map_unset(port, lm->plun); 3424 else if (lm->lun < CTL_MAX_LUNS && 3425 softc->ctl_luns[lm->lun] != NULL) 3426 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3427 else 3428 return (ENXIO); 3429 } else if (lm->plun == UINT32_MAX) { 3430 if (lm->lun == UINT32_MAX) 3431 retval = ctl_lun_map_deinit(port); 3432 else 3433 retval = ctl_lun_map_init(port); 3434 } else 3435 return (ENXIO); 3436 if (port->status & CTL_PORT_STATUS_ONLINE) 3437 ctl_isc_announce_port(port); 3438 break; 3439 } 3440 default: { 3441 /* XXX KDM should we fix this? */ 3442#if 0 3443 struct ctl_backend_driver *backend; 3444 unsigned int type; 3445 int found; 3446 3447 found = 0; 3448 3449 /* 3450 * We encode the backend type as the ioctl type for backend 3451 * ioctls. So parse it out here, and then search for a 3452 * backend of this type. 3453 */ 3454 type = _IOC_TYPE(cmd); 3455 3456 STAILQ_FOREACH(backend, &softc->be_list, links) { 3457 if (backend->type == type) { 3458 found = 1; 3459 break; 3460 } 3461 } 3462 if (found == 0) { 3463 printf("ctl: unknown ioctl command %#lx or backend " 3464 "%d\n", cmd, type); 3465 retval = EINVAL; 3466 break; 3467 } 3468 retval = backend->ioctl(dev, cmd, addr, flag, td); 3469#endif 3470 retval = ENOTTY; 3471 break; 3472 } 3473 } 3474 return (retval); 3475} 3476 3477uint32_t 3478ctl_get_initindex(struct ctl_nexus *nexus) 3479{ 3480 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3481} 3482 3483int 3484ctl_lun_map_init(struct ctl_port *port) 3485{ 3486 struct ctl_softc *softc = control_softc; 3487 struct ctl_lun *lun; 3488 uint32_t i; 3489 3490 if (port->lun_map == NULL) 3491 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3492 M_CTL, M_NOWAIT); 3493 if (port->lun_map == NULL) 3494 return (ENOMEM); 3495 for (i = 0; i < CTL_MAX_LUNS; i++) 3496 port->lun_map[i] = UINT32_MAX; 3497 if (port->status & CTL_PORT_STATUS_ONLINE) { 3498 if (port->lun_disable != NULL) { 3499 STAILQ_FOREACH(lun, &softc->lun_list, links) 3500 port->lun_disable(port->targ_lun_arg, lun->lun); 3501 } 3502 ctl_isc_announce_port(port); 3503 } 3504 return (0); 3505} 3506 3507int 3508ctl_lun_map_deinit(struct ctl_port *port) 3509{ 3510 struct ctl_softc *softc = control_softc; 3511 struct ctl_lun *lun; 3512 3513 if (port->lun_map == NULL) 3514 return (0); 3515 free(port->lun_map, M_CTL); 3516 port->lun_map = NULL; 3517 if (port->status & CTL_PORT_STATUS_ONLINE) { 3518 if (port->lun_enable != NULL) { 3519 STAILQ_FOREACH(lun, &softc->lun_list, links) 3520 port->lun_enable(port->targ_lun_arg, lun->lun); 3521 } 3522 ctl_isc_announce_port(port); 3523 } 3524 return (0); 3525} 3526 3527int 3528ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3529{ 3530 int status; 3531 uint32_t old; 3532 3533 if (port->lun_map == NULL) { 3534 status = ctl_lun_map_init(port); 3535 if (status != 0) 3536 return (status); 3537 } 3538 old = port->lun_map[plun]; 3539 port->lun_map[plun] = glun; 3540 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3541 if (port->lun_enable != NULL) 3542 port->lun_enable(port->targ_lun_arg, plun); 3543 ctl_isc_announce_port(port); 3544 } 3545 return (0); 3546} 3547 3548int 3549ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3550{ 3551 uint32_t old; 3552 3553 if (port->lun_map == NULL) 3554 return (0); 3555 old = port->lun_map[plun]; 3556 port->lun_map[plun] = UINT32_MAX; 3557 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3558 if (port->lun_disable != NULL) 3559 port->lun_disable(port->targ_lun_arg, plun); 3560 ctl_isc_announce_port(port); 3561 } 3562 return (0); 3563} 3564 3565uint32_t 3566ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3567{ 3568 3569 if (port == NULL) 3570 return (UINT32_MAX); 3571 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3572 return (lun_id); 3573 return (port->lun_map[lun_id]); 3574} 3575 3576uint32_t 3577ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3578{ 3579 uint32_t i; 3580 3581 if (port == NULL) 3582 return (UINT32_MAX); 3583 if (port->lun_map == NULL) 3584 return (lun_id); 3585 for (i = 0; i < CTL_MAX_LUNS; i++) { 3586 if (port->lun_map[i] == lun_id) 3587 return (i); 3588 } 3589 return (UINT32_MAX); 3590} 3591 3592static struct ctl_port * 3593ctl_io_port(struct ctl_io_hdr *io_hdr) 3594{ 3595 3596 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3597} 3598 3599int 3600ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3601{ 3602 int i; 3603 3604 for (i = first; i < last; i++) { 3605 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3606 return (i); 3607 } 3608 return (-1); 3609} 3610 3611int 3612ctl_set_mask(uint32_t *mask, uint32_t bit) 3613{ 3614 uint32_t chunk, piece; 3615 3616 chunk = bit >> 5; 3617 piece = bit % (sizeof(uint32_t) * 8); 3618 3619 if ((mask[chunk] & (1 << piece)) != 0) 3620 return (-1); 3621 else 3622 mask[chunk] |= (1 << piece); 3623 3624 return (0); 3625} 3626 3627int 3628ctl_clear_mask(uint32_t *mask, uint32_t bit) 3629{ 3630 uint32_t chunk, piece; 3631 3632 chunk = bit >> 5; 3633 piece = bit % (sizeof(uint32_t) * 8); 3634 3635 if ((mask[chunk] & (1 << piece)) == 0) 3636 return (-1); 3637 else 3638 mask[chunk] &= ~(1 << piece); 3639 3640 return (0); 3641} 3642 3643int 3644ctl_is_set(uint32_t *mask, uint32_t bit) 3645{ 3646 uint32_t chunk, piece; 3647 3648 chunk = bit >> 5; 3649 piece = bit % (sizeof(uint32_t) * 8); 3650 3651 if ((mask[chunk] & (1 << piece)) == 0) 3652 return (0); 3653 else 3654 return (1); 3655} 3656 3657static uint64_t 3658ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3659{ 3660 uint64_t *t; 3661 3662 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3663 if (t == NULL) 3664 return (0); 3665 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3666} 3667 3668static void 3669ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3670{ 3671 uint64_t *t; 3672 3673 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3674 if (t == NULL) 3675 return; 3676 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3677} 3678 3679static void 3680ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3681{ 3682 uint64_t *p; 3683 u_int i; 3684 3685 i = residx/CTL_MAX_INIT_PER_PORT; 3686 if (lun->pr_keys[i] != NULL) 3687 return; 3688 mtx_unlock(&lun->lun_lock); 3689 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3690 M_WAITOK | M_ZERO); 3691 mtx_lock(&lun->lun_lock); 3692 if (lun->pr_keys[i] == NULL) 3693 lun->pr_keys[i] = p; 3694 else 3695 free(p, M_CTL); 3696} 3697 3698static void 3699ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3700{ 3701 uint64_t *t; 3702 3703 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3704 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3705 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3706} 3707 3708/* 3709 * ctl_softc, pool_name, total_ctl_io are passed in. 3710 * npool is passed out. 3711 */ 3712int 3713ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3714 uint32_t total_ctl_io, void **npool) 3715{ 3716#ifdef IO_POOLS 3717 struct ctl_io_pool *pool; 3718 3719 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3720 M_NOWAIT | M_ZERO); 3721 if (pool == NULL) 3722 return (ENOMEM); 3723 3724 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3725 pool->ctl_softc = ctl_softc; 3726 pool->zone = uma_zsecond_create(pool->name, NULL, 3727 NULL, NULL, NULL, ctl_softc->io_zone); 3728 /* uma_prealloc(pool->zone, total_ctl_io); */ 3729 3730 *npool = pool; 3731#else 3732 *npool = ctl_softc->io_zone; 3733#endif 3734 return (0); 3735} 3736 3737void 3738ctl_pool_free(struct ctl_io_pool *pool) 3739{ 3740 3741 if (pool == NULL) 3742 return; 3743 3744#ifdef IO_POOLS 3745 uma_zdestroy(pool->zone); 3746 free(pool, M_CTL); 3747#endif 3748} 3749 3750union ctl_io * 3751ctl_alloc_io(void *pool_ref) 3752{ 3753 union ctl_io *io; 3754#ifdef IO_POOLS 3755 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3756 3757 io = uma_zalloc(pool->zone, M_WAITOK); 3758#else 3759 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3760#endif 3761 if (io != NULL) 3762 io->io_hdr.pool = pool_ref; 3763 return (io); 3764} 3765 3766union ctl_io * 3767ctl_alloc_io_nowait(void *pool_ref) 3768{ 3769 union ctl_io *io; 3770#ifdef IO_POOLS 3771 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3772 3773 io = uma_zalloc(pool->zone, M_NOWAIT); 3774#else 3775 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3776#endif 3777 if (io != NULL) 3778 io->io_hdr.pool = pool_ref; 3779 return (io); 3780} 3781 3782void 3783ctl_free_io(union ctl_io *io) 3784{ 3785#ifdef IO_POOLS 3786 struct ctl_io_pool *pool; 3787#endif 3788 3789 if (io == NULL) 3790 return; 3791 3792#ifdef IO_POOLS 3793 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3794 uma_zfree(pool->zone, io); 3795#else 3796 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3797#endif 3798} 3799 3800void 3801ctl_zero_io(union ctl_io *io) 3802{ 3803 void *pool_ref; 3804 3805 if (io == NULL) 3806 return; 3807 3808 /* 3809 * May need to preserve linked list pointers at some point too. 3810 */ 3811 pool_ref = io->io_hdr.pool; 3812 memset(io, 0, sizeof(*io)); 3813 io->io_hdr.pool = pool_ref; 3814} 3815 3816/* 3817 * This routine is currently used for internal copies of ctl_ios that need 3818 * to persist for some reason after we've already returned status to the 3819 * FETD. (Thus the flag set.) 3820 * 3821 * XXX XXX 3822 * Note that this makes a blind copy of all fields in the ctl_io, except 3823 * for the pool reference. This includes any memory that has been 3824 * allocated! That memory will no longer be valid after done has been 3825 * called, so this would be VERY DANGEROUS for command that actually does 3826 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3827 * start and stop commands, which don't transfer any data, so this is not a 3828 * problem. If it is used for anything else, the caller would also need to 3829 * allocate data buffer space and this routine would need to be modified to 3830 * copy the data buffer(s) as well. 3831 */ 3832void 3833ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3834{ 3835 void *pool_ref; 3836 3837 if ((src == NULL) 3838 || (dest == NULL)) 3839 return; 3840 3841 /* 3842 * May need to preserve linked list pointers at some point too. 3843 */ 3844 pool_ref = dest->io_hdr.pool; 3845 3846 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3847 3848 dest->io_hdr.pool = pool_ref; 3849 /* 3850 * We need to know that this is an internal copy, and doesn't need 3851 * to get passed back to the FETD that allocated it. 3852 */ 3853 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3854} 3855 3856int 3857ctl_expand_number(const char *buf, uint64_t *num) 3858{ 3859 char *endptr; 3860 uint64_t number; 3861 unsigned shift; 3862 3863 number = strtoq(buf, &endptr, 0); 3864 3865 switch (tolower((unsigned char)*endptr)) { 3866 case 'e': 3867 shift = 60; 3868 break; 3869 case 'p': 3870 shift = 50; 3871 break; 3872 case 't': 3873 shift = 40; 3874 break; 3875 case 'g': 3876 shift = 30; 3877 break; 3878 case 'm': 3879 shift = 20; 3880 break; 3881 case 'k': 3882 shift = 10; 3883 break; 3884 case 'b': 3885 case '\0': /* No unit. */ 3886 *num = number; 3887 return (0); 3888 default: 3889 /* Unrecognized unit. */ 3890 return (-1); 3891 } 3892 3893 if ((number << shift) >> shift != number) { 3894 /* Overflow */ 3895 return (-1); 3896 } 3897 *num = number << shift; 3898 return (0); 3899} 3900 3901 3902/* 3903 * This routine could be used in the future to load default and/or saved 3904 * mode page parameters for a particuar lun. 3905 */ 3906static int 3907ctl_init_page_index(struct ctl_lun *lun) 3908{ 3909 int i; 3910 struct ctl_page_index *page_index; 3911 const char *value; 3912 uint64_t ival; 3913 3914 memcpy(&lun->mode_pages.index, page_index_template, 3915 sizeof(page_index_template)); 3916 3917 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3918 3919 page_index = &lun->mode_pages.index[i]; 3920 /* 3921 * If this is a disk-only mode page, there's no point in 3922 * setting it up. For some pages, we have to have some 3923 * basic information about the disk in order to calculate the 3924 * mode page data. 3925 */ 3926 if ((lun->be_lun->lun_type != T_DIRECT) 3927 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3928 continue; 3929 3930 switch (page_index->page_code & SMPH_PC_MASK) { 3931 case SMS_RW_ERROR_RECOVERY_PAGE: { 3932 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3933 panic("subpage is incorrect!"); 3934 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3935 &rw_er_page_default, 3936 sizeof(rw_er_page_default)); 3937 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3938 &rw_er_page_changeable, 3939 sizeof(rw_er_page_changeable)); 3940 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3941 &rw_er_page_default, 3942 sizeof(rw_er_page_default)); 3943 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3944 &rw_er_page_default, 3945 sizeof(rw_er_page_default)); 3946 page_index->page_data = 3947 (uint8_t *)lun->mode_pages.rw_er_page; 3948 break; 3949 } 3950 case SMS_FORMAT_DEVICE_PAGE: { 3951 struct scsi_format_page *format_page; 3952 3953 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3954 panic("subpage is incorrect!"); 3955 3956 /* 3957 * Sectors per track are set above. Bytes per 3958 * sector need to be set here on a per-LUN basis. 3959 */ 3960 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3961 &format_page_default, 3962 sizeof(format_page_default)); 3963 memcpy(&lun->mode_pages.format_page[ 3964 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3965 sizeof(format_page_changeable)); 3966 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3967 &format_page_default, 3968 sizeof(format_page_default)); 3969 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3970 &format_page_default, 3971 sizeof(format_page_default)); 3972 3973 format_page = &lun->mode_pages.format_page[ 3974 CTL_PAGE_CURRENT]; 3975 scsi_ulto2b(lun->be_lun->blocksize, 3976 format_page->bytes_per_sector); 3977 3978 format_page = &lun->mode_pages.format_page[ 3979 CTL_PAGE_DEFAULT]; 3980 scsi_ulto2b(lun->be_lun->blocksize, 3981 format_page->bytes_per_sector); 3982 3983 format_page = &lun->mode_pages.format_page[ 3984 CTL_PAGE_SAVED]; 3985 scsi_ulto2b(lun->be_lun->blocksize, 3986 format_page->bytes_per_sector); 3987 3988 page_index->page_data = 3989 (uint8_t *)lun->mode_pages.format_page; 3990 break; 3991 } 3992 case SMS_RIGID_DISK_PAGE: { 3993 struct scsi_rigid_disk_page *rigid_disk_page; 3994 uint32_t sectors_per_cylinder; 3995 uint64_t cylinders; 3996#ifndef __XSCALE__ 3997 int shift; 3998#endif /* !__XSCALE__ */ 3999 4000 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4001 panic("invalid subpage value %d", 4002 page_index->subpage); 4003 4004 /* 4005 * Rotation rate and sectors per track are set 4006 * above. We calculate the cylinders here based on 4007 * capacity. Due to the number of heads and 4008 * sectors per track we're using, smaller arrays 4009 * may turn out to have 0 cylinders. Linux and 4010 * FreeBSD don't pay attention to these mode pages 4011 * to figure out capacity, but Solaris does. It 4012 * seems to deal with 0 cylinders just fine, and 4013 * works out a fake geometry based on the capacity. 4014 */ 4015 memcpy(&lun->mode_pages.rigid_disk_page[ 4016 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4017 sizeof(rigid_disk_page_default)); 4018 memcpy(&lun->mode_pages.rigid_disk_page[ 4019 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4020 sizeof(rigid_disk_page_changeable)); 4021 4022 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4023 CTL_DEFAULT_HEADS; 4024 4025 /* 4026 * The divide method here will be more accurate, 4027 * probably, but results in floating point being 4028 * used in the kernel on i386 (__udivdi3()). On the 4029 * XScale, though, __udivdi3() is implemented in 4030 * software. 4031 * 4032 * The shift method for cylinder calculation is 4033 * accurate if sectors_per_cylinder is a power of 4034 * 2. Otherwise it might be slightly off -- you 4035 * might have a bit of a truncation problem. 4036 */ 4037#ifdef __XSCALE__ 4038 cylinders = (lun->be_lun->maxlba + 1) / 4039 sectors_per_cylinder; 4040#else 4041 for (shift = 31; shift > 0; shift--) { 4042 if (sectors_per_cylinder & (1 << shift)) 4043 break; 4044 } 4045 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4046#endif 4047 4048 /* 4049 * We've basically got 3 bytes, or 24 bits for the 4050 * cylinder size in the mode page. If we're over, 4051 * just round down to 2^24. 4052 */ 4053 if (cylinders > 0xffffff) 4054 cylinders = 0xffffff; 4055 4056 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4057 CTL_PAGE_DEFAULT]; 4058 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4059 4060 if ((value = ctl_get_opt(&lun->be_lun->options, 4061 "rpm")) != NULL) { 4062 scsi_ulto2b(strtol(value, NULL, 0), 4063 rigid_disk_page->rotation_rate); 4064 } 4065 4066 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4067 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4068 sizeof(rigid_disk_page_default)); 4069 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4070 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4071 sizeof(rigid_disk_page_default)); 4072 4073 page_index->page_data = 4074 (uint8_t *)lun->mode_pages.rigid_disk_page; 4075 break; 4076 } 4077 case SMS_CACHING_PAGE: { 4078 struct scsi_caching_page *caching_page; 4079 4080 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4081 panic("invalid subpage value %d", 4082 page_index->subpage); 4083 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4084 &caching_page_default, 4085 sizeof(caching_page_default)); 4086 memcpy(&lun->mode_pages.caching_page[ 4087 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4088 sizeof(caching_page_changeable)); 4089 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4090 &caching_page_default, 4091 sizeof(caching_page_default)); 4092 caching_page = &lun->mode_pages.caching_page[ 4093 CTL_PAGE_SAVED]; 4094 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4095 if (value != NULL && strcmp(value, "off") == 0) 4096 caching_page->flags1 &= ~SCP_WCE; 4097 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4098 if (value != NULL && strcmp(value, "off") == 0) 4099 caching_page->flags1 |= SCP_RCD; 4100 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4101 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4102 sizeof(caching_page_default)); 4103 page_index->page_data = 4104 (uint8_t *)lun->mode_pages.caching_page; 4105 break; 4106 } 4107 case SMS_CONTROL_MODE_PAGE: { 4108 switch (page_index->subpage) { 4109 case SMS_SUBPAGE_PAGE_0: { 4110 struct scsi_control_page *control_page; 4111 4112 memcpy(&lun->mode_pages.control_page[ 4113 CTL_PAGE_DEFAULT], 4114 &control_page_default, 4115 sizeof(control_page_default)); 4116 memcpy(&lun->mode_pages.control_page[ 4117 CTL_PAGE_CHANGEABLE], 4118 &control_page_changeable, 4119 sizeof(control_page_changeable)); 4120 memcpy(&lun->mode_pages.control_page[ 4121 CTL_PAGE_SAVED], 4122 &control_page_default, 4123 sizeof(control_page_default)); 4124 control_page = &lun->mode_pages.control_page[ 4125 CTL_PAGE_SAVED]; 4126 value = ctl_get_opt(&lun->be_lun->options, 4127 "reordering"); 4128 if (value != NULL && 4129 strcmp(value, "unrestricted") == 0) { 4130 control_page->queue_flags &= 4131 ~SCP_QUEUE_ALG_MASK; 4132 control_page->queue_flags |= 4133 SCP_QUEUE_ALG_UNRESTRICTED; 4134 } 4135 memcpy(&lun->mode_pages.control_page[ 4136 CTL_PAGE_CURRENT], 4137 &lun->mode_pages.control_page[ 4138 CTL_PAGE_SAVED], 4139 sizeof(control_page_default)); 4140 page_index->page_data = 4141 (uint8_t *)lun->mode_pages.control_page; 4142 break; 4143 } 4144 case 0x01: 4145 memcpy(&lun->mode_pages.control_ext_page[ 4146 CTL_PAGE_DEFAULT], 4147 &control_ext_page_default, 4148 sizeof(control_ext_page_default)); 4149 memcpy(&lun->mode_pages.control_ext_page[ 4150 CTL_PAGE_CHANGEABLE], 4151 &control_ext_page_changeable, 4152 sizeof(control_ext_page_changeable)); 4153 memcpy(&lun->mode_pages.control_ext_page[ 4154 CTL_PAGE_SAVED], 4155 &control_ext_page_default, 4156 sizeof(control_ext_page_default)); 4157 memcpy(&lun->mode_pages.control_ext_page[ 4158 CTL_PAGE_CURRENT], 4159 &lun->mode_pages.control_ext_page[ 4160 CTL_PAGE_SAVED], 4161 sizeof(control_ext_page_default)); 4162 page_index->page_data = 4163 (uint8_t *)lun->mode_pages.control_ext_page; 4164 break; 4165 } 4166 break; 4167 } 4168 case SMS_INFO_EXCEPTIONS_PAGE: { 4169 switch (page_index->subpage) { 4170 case SMS_SUBPAGE_PAGE_0: 4171 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4172 &ie_page_default, 4173 sizeof(ie_page_default)); 4174 memcpy(&lun->mode_pages.ie_page[ 4175 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4176 sizeof(ie_page_changeable)); 4177 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4178 &ie_page_default, 4179 sizeof(ie_page_default)); 4180 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4181 &ie_page_default, 4182 sizeof(ie_page_default)); 4183 page_index->page_data = 4184 (uint8_t *)lun->mode_pages.ie_page; 4185 break; 4186 case 0x02: { 4187 struct ctl_logical_block_provisioning_page *page; 4188 4189 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4190 &lbp_page_default, 4191 sizeof(lbp_page_default)); 4192 memcpy(&lun->mode_pages.lbp_page[ 4193 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4194 sizeof(lbp_page_changeable)); 4195 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4196 &lbp_page_default, 4197 sizeof(lbp_page_default)); 4198 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4199 value = ctl_get_opt(&lun->be_lun->options, 4200 "avail-threshold"); 4201 if (value != NULL && 4202 ctl_expand_number(value, &ival) == 0) { 4203 page->descr[0].flags |= SLBPPD_ENABLED | 4204 SLBPPD_ARMING_DEC; 4205 if (lun->be_lun->blocksize) 4206 ival /= lun->be_lun->blocksize; 4207 else 4208 ival /= 512; 4209 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4210 page->descr[0].count); 4211 } 4212 value = ctl_get_opt(&lun->be_lun->options, 4213 "used-threshold"); 4214 if (value != NULL && 4215 ctl_expand_number(value, &ival) == 0) { 4216 page->descr[1].flags |= SLBPPD_ENABLED | 4217 SLBPPD_ARMING_INC; 4218 if (lun->be_lun->blocksize) 4219 ival /= lun->be_lun->blocksize; 4220 else 4221 ival /= 512; 4222 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4223 page->descr[1].count); 4224 } 4225 value = ctl_get_opt(&lun->be_lun->options, 4226 "pool-avail-threshold"); 4227 if (value != NULL && 4228 ctl_expand_number(value, &ival) == 0) { 4229 page->descr[2].flags |= SLBPPD_ENABLED | 4230 SLBPPD_ARMING_DEC; 4231 if (lun->be_lun->blocksize) 4232 ival /= lun->be_lun->blocksize; 4233 else 4234 ival /= 512; 4235 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4236 page->descr[2].count); 4237 } 4238 value = ctl_get_opt(&lun->be_lun->options, 4239 "pool-used-threshold"); 4240 if (value != NULL && 4241 ctl_expand_number(value, &ival) == 0) { 4242 page->descr[3].flags |= SLBPPD_ENABLED | 4243 SLBPPD_ARMING_INC; 4244 if (lun->be_lun->blocksize) 4245 ival /= lun->be_lun->blocksize; 4246 else 4247 ival /= 512; 4248 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4249 page->descr[3].count); 4250 } 4251 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4252 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4253 sizeof(lbp_page_default)); 4254 page_index->page_data = 4255 (uint8_t *)lun->mode_pages.lbp_page; 4256 }} 4257 break; 4258 } 4259 case SMS_VENDOR_SPECIFIC_PAGE:{ 4260 switch (page_index->subpage) { 4261 case DBGCNF_SUBPAGE_CODE: { 4262 struct copan_debugconf_subpage *current_page, 4263 *saved_page; 4264 4265 memcpy(&lun->mode_pages.debugconf_subpage[ 4266 CTL_PAGE_CURRENT], 4267 &debugconf_page_default, 4268 sizeof(debugconf_page_default)); 4269 memcpy(&lun->mode_pages.debugconf_subpage[ 4270 CTL_PAGE_CHANGEABLE], 4271 &debugconf_page_changeable, 4272 sizeof(debugconf_page_changeable)); 4273 memcpy(&lun->mode_pages.debugconf_subpage[ 4274 CTL_PAGE_DEFAULT], 4275 &debugconf_page_default, 4276 sizeof(debugconf_page_default)); 4277 memcpy(&lun->mode_pages.debugconf_subpage[ 4278 CTL_PAGE_SAVED], 4279 &debugconf_page_default, 4280 sizeof(debugconf_page_default)); 4281 page_index->page_data = 4282 (uint8_t *)lun->mode_pages.debugconf_subpage; 4283 4284 current_page = (struct copan_debugconf_subpage *) 4285 (page_index->page_data + 4286 (page_index->page_len * 4287 CTL_PAGE_CURRENT)); 4288 saved_page = (struct copan_debugconf_subpage *) 4289 (page_index->page_data + 4290 (page_index->page_len * 4291 CTL_PAGE_SAVED)); 4292 break; 4293 } 4294 default: 4295 panic("invalid subpage value %d", 4296 page_index->subpage); 4297 break; 4298 } 4299 break; 4300 } 4301 default: 4302 panic("invalid page value %d", 4303 page_index->page_code & SMPH_PC_MASK); 4304 break; 4305 } 4306 } 4307 4308 return (CTL_RETVAL_COMPLETE); 4309} 4310 4311static int 4312ctl_init_log_page_index(struct ctl_lun *lun) 4313{ 4314 struct ctl_page_index *page_index; 4315 int i, j, k, prev; 4316 4317 memcpy(&lun->log_pages.index, log_page_index_template, 4318 sizeof(log_page_index_template)); 4319 4320 prev = -1; 4321 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4322 4323 page_index = &lun->log_pages.index[i]; 4324 /* 4325 * If this is a disk-only mode page, there's no point in 4326 * setting it up. For some pages, we have to have some 4327 * basic information about the disk in order to calculate the 4328 * mode page data. 4329 */ 4330 if ((lun->be_lun->lun_type != T_DIRECT) 4331 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4332 continue; 4333 4334 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4335 lun->backend->lun_attr == NULL) 4336 continue; 4337 4338 if (page_index->page_code != prev) { 4339 lun->log_pages.pages_page[j] = page_index->page_code; 4340 prev = page_index->page_code; 4341 j++; 4342 } 4343 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4344 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4345 k++; 4346 } 4347 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4348 lun->log_pages.index[0].page_len = j; 4349 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4350 lun->log_pages.index[1].page_len = k * 2; 4351 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4352 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4353 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4354 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4355 4356 return (CTL_RETVAL_COMPLETE); 4357} 4358 4359static int 4360hex2bin(const char *str, uint8_t *buf, int buf_size) 4361{ 4362 int i; 4363 u_char c; 4364 4365 memset(buf, 0, buf_size); 4366 while (isspace(str[0])) 4367 str++; 4368 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4369 str += 2; 4370 buf_size *= 2; 4371 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4372 c = str[i]; 4373 if (isdigit(c)) 4374 c -= '0'; 4375 else if (isalpha(c)) 4376 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4377 else 4378 break; 4379 if (c >= 16) 4380 break; 4381 if ((i & 1) == 0) 4382 buf[i / 2] |= (c << 4); 4383 else 4384 buf[i / 2] |= c; 4385 } 4386 return ((i + 1) / 2); 4387} 4388 4389/* 4390 * LUN allocation. 4391 * 4392 * Requirements: 4393 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4394 * wants us to allocate the LUN and he can block. 4395 * - ctl_softc is always set 4396 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4397 * 4398 * Returns 0 for success, non-zero (errno) for failure. 4399 */ 4400static int 4401ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4402 struct ctl_be_lun *const be_lun) 4403{ 4404 struct ctl_lun *nlun, *lun; 4405 struct scsi_vpd_id_descriptor *desc; 4406 struct scsi_vpd_id_t10 *t10id; 4407 const char *eui, *naa, *scsiname, *vendor; 4408 int lun_number, i, lun_malloced; 4409 int devidlen, idlen1, idlen2 = 0, len; 4410 4411 if (be_lun == NULL) 4412 return (EINVAL); 4413 4414 /* 4415 * We currently only support Direct Access or Processor LUN types. 4416 */ 4417 switch (be_lun->lun_type) { 4418 case T_DIRECT: 4419 break; 4420 case T_PROCESSOR: 4421 break; 4422 case T_SEQUENTIAL: 4423 case T_CHANGER: 4424 default: 4425 be_lun->lun_config_status(be_lun->be_lun, 4426 CTL_LUN_CONFIG_FAILURE); 4427 break; 4428 } 4429 if (ctl_lun == NULL) { 4430 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4431 lun_malloced = 1; 4432 } else { 4433 lun_malloced = 0; 4434 lun = ctl_lun; 4435 } 4436 4437 memset(lun, 0, sizeof(*lun)); 4438 if (lun_malloced) 4439 lun->flags = CTL_LUN_MALLOCED; 4440 4441 /* Generate LUN ID. */ 4442 devidlen = max(CTL_DEVID_MIN_LEN, 4443 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4444 idlen1 = sizeof(*t10id) + devidlen; 4445 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4446 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4447 if (scsiname != NULL) { 4448 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4449 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4450 } 4451 eui = ctl_get_opt(&be_lun->options, "eui"); 4452 if (eui != NULL) { 4453 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4454 } 4455 naa = ctl_get_opt(&be_lun->options, "naa"); 4456 if (naa != NULL) { 4457 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4458 } 4459 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4460 M_CTL, M_WAITOK | M_ZERO); 4461 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4462 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4463 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4464 desc->length = idlen1; 4465 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4466 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4467 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4468 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4469 } else { 4470 strncpy(t10id->vendor, vendor, 4471 min(sizeof(t10id->vendor), strlen(vendor))); 4472 } 4473 strncpy((char *)t10id->vendor_spec_id, 4474 (char *)be_lun->device_id, devidlen); 4475 if (scsiname != NULL) { 4476 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4477 desc->length); 4478 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4479 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4480 SVPD_ID_TYPE_SCSI_NAME; 4481 desc->length = idlen2; 4482 strlcpy(desc->identifier, scsiname, idlen2); 4483 } 4484 if (eui != NULL) { 4485 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4486 desc->length); 4487 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4488 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4489 SVPD_ID_TYPE_EUI64; 4490 desc->length = hex2bin(eui, desc->identifier, 16); 4491 desc->length = desc->length > 12 ? 16 : 4492 (desc->length > 8 ? 12 : 8); 4493 len -= 16 - desc->length; 4494 } 4495 if (naa != NULL) { 4496 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4497 desc->length); 4498 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4499 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4500 SVPD_ID_TYPE_NAA; 4501 desc->length = hex2bin(naa, desc->identifier, 16); 4502 desc->length = desc->length > 8 ? 16 : 8; 4503 len -= 16 - desc->length; 4504 } 4505 lun->lun_devid->len = len; 4506 4507 mtx_lock(&ctl_softc->ctl_lock); 4508 /* 4509 * See if the caller requested a particular LUN number. If so, see 4510 * if it is available. Otherwise, allocate the first available LUN. 4511 */ 4512 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4513 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4514 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4515 mtx_unlock(&ctl_softc->ctl_lock); 4516 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4517 printf("ctl: requested LUN ID %d is higher " 4518 "than CTL_MAX_LUNS - 1 (%d)\n", 4519 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4520 } else { 4521 /* 4522 * XXX KDM return an error, or just assign 4523 * another LUN ID in this case?? 4524 */ 4525 printf("ctl: requested LUN ID %d is already " 4526 "in use\n", be_lun->req_lun_id); 4527 } 4528 if (lun->flags & CTL_LUN_MALLOCED) 4529 free(lun, M_CTL); 4530 be_lun->lun_config_status(be_lun->be_lun, 4531 CTL_LUN_CONFIG_FAILURE); 4532 return (ENOSPC); 4533 } 4534 lun_number = be_lun->req_lun_id; 4535 } else { 4536 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4537 if (lun_number == -1) { 4538 mtx_unlock(&ctl_softc->ctl_lock); 4539 printf("ctl: can't allocate LUN, out of LUNs\n"); 4540 if (lun->flags & CTL_LUN_MALLOCED) 4541 free(lun, M_CTL); 4542 be_lun->lun_config_status(be_lun->be_lun, 4543 CTL_LUN_CONFIG_FAILURE); 4544 return (ENOSPC); 4545 } 4546 } 4547 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4548 4549 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4550 lun->lun = lun_number; 4551 lun->be_lun = be_lun; 4552 /* 4553 * The processor LUN is always enabled. Disk LUNs come on line 4554 * disabled, and must be enabled by the backend. 4555 */ 4556 lun->flags |= CTL_LUN_DISABLED; 4557 lun->backend = be_lun->be; 4558 be_lun->ctl_lun = lun; 4559 be_lun->lun_id = lun_number; 4560 atomic_add_int(&be_lun->be->num_luns, 1); 4561 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4562 lun->flags |= CTL_LUN_OFFLINE; 4563 4564 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4565 lun->flags |= CTL_LUN_STOPPED; 4566 4567 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4568 lun->flags |= CTL_LUN_INOPERABLE; 4569 4570 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4571 lun->flags |= CTL_LUN_PRIMARY_SC; 4572 4573 lun->ctl_softc = ctl_softc; 4574#ifdef CTL_TIME_IO 4575 lun->last_busy = getsbinuptime(); 4576#endif 4577 TAILQ_INIT(&lun->ooa_queue); 4578 TAILQ_INIT(&lun->blocked_queue); 4579 STAILQ_INIT(&lun->error_list); 4580 ctl_tpc_lun_init(lun); 4581 4582 /* 4583 * Initialize the mode and log page index. 4584 */ 4585 ctl_init_page_index(lun); 4586 ctl_init_log_page_index(lun); 4587 4588 /* 4589 * Now, before we insert this lun on the lun list, set the lun 4590 * inventory changed UA for all other luns. 4591 */ 4592 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4593 mtx_lock(&nlun->lun_lock); 4594 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4595 mtx_unlock(&nlun->lun_lock); 4596 } 4597 4598 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4599 4600 ctl_softc->ctl_luns[lun_number] = lun; 4601 4602 ctl_softc->num_luns++; 4603 4604 /* Setup statistics gathering */ 4605 lun->stats.device_type = be_lun->lun_type; 4606 lun->stats.lun_number = lun_number; 4607 if (lun->stats.device_type == T_DIRECT) 4608 lun->stats.blocksize = be_lun->blocksize; 4609 else 4610 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4611 for (i = 0;i < CTL_MAX_PORTS;i++) 4612 lun->stats.ports[i].targ_port = i; 4613 4614 mtx_unlock(&ctl_softc->ctl_lock); 4615 4616 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4617 return (0); 4618} 4619 4620/* 4621 * Delete a LUN. 4622 * Assumptions: 4623 * - LUN has already been marked invalid and any pending I/O has been taken 4624 * care of. 4625 */ 4626static int 4627ctl_free_lun(struct ctl_lun *lun) 4628{ 4629 struct ctl_softc *softc; 4630 struct ctl_lun *nlun; 4631 int i; 4632 4633 softc = lun->ctl_softc; 4634 4635 mtx_assert(&softc->ctl_lock, MA_OWNED); 4636 4637 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4638 4639 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4640 4641 softc->ctl_luns[lun->lun] = NULL; 4642 4643 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4644 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4645 4646 softc->num_luns--; 4647 4648 /* 4649 * Tell the backend to free resources, if this LUN has a backend. 4650 */ 4651 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4652 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4653 4654 ctl_tpc_lun_shutdown(lun); 4655 mtx_destroy(&lun->lun_lock); 4656 free(lun->lun_devid, M_CTL); 4657 for (i = 0; i < CTL_MAX_PORTS; i++) 4658 free(lun->pending_ua[i], M_CTL); 4659 for (i = 0; i < CTL_MAX_PORTS; i++) 4660 free(lun->pr_keys[i], M_CTL); 4661 free(lun->write_buffer, M_CTL); 4662 if (lun->flags & CTL_LUN_MALLOCED) 4663 free(lun, M_CTL); 4664 4665 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4666 mtx_lock(&nlun->lun_lock); 4667 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4668 mtx_unlock(&nlun->lun_lock); 4669 } 4670 4671 return (0); 4672} 4673 4674static void 4675ctl_create_lun(struct ctl_be_lun *be_lun) 4676{ 4677 struct ctl_softc *softc; 4678 4679 softc = control_softc; 4680 4681 /* 4682 * ctl_alloc_lun() should handle all potential failure cases. 4683 */ 4684 ctl_alloc_lun(softc, NULL, be_lun); 4685} 4686 4687int 4688ctl_add_lun(struct ctl_be_lun *be_lun) 4689{ 4690 struct ctl_softc *softc = control_softc; 4691 4692 mtx_lock(&softc->ctl_lock); 4693 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4694 mtx_unlock(&softc->ctl_lock); 4695 wakeup(&softc->pending_lun_queue); 4696 4697 return (0); 4698} 4699 4700int 4701ctl_enable_lun(struct ctl_be_lun *be_lun) 4702{ 4703 struct ctl_softc *softc; 4704 struct ctl_port *port, *nport; 4705 struct ctl_lun *lun; 4706 int retval; 4707 4708 lun = (struct ctl_lun *)be_lun->ctl_lun; 4709 softc = lun->ctl_softc; 4710 4711 mtx_lock(&softc->ctl_lock); 4712 mtx_lock(&lun->lun_lock); 4713 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4714 /* 4715 * eh? Why did we get called if the LUN is already 4716 * enabled? 4717 */ 4718 mtx_unlock(&lun->lun_lock); 4719 mtx_unlock(&softc->ctl_lock); 4720 return (0); 4721 } 4722 lun->flags &= ~CTL_LUN_DISABLED; 4723 mtx_unlock(&lun->lun_lock); 4724 4725 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4726 nport = STAILQ_NEXT(port, links); 4727 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4728 port->lun_map != NULL || port->lun_enable == NULL) 4729 continue; 4730 4731 /* 4732 * Drop the lock while we call the FETD's enable routine. 4733 * This can lead to a callback into CTL (at least in the 4734 * case of the internal initiator frontend. 4735 */ 4736 mtx_unlock(&softc->ctl_lock); 4737 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4738 mtx_lock(&softc->ctl_lock); 4739 if (retval != 0) { 4740 printf("%s: FETD %s port %d returned error " 4741 "%d for lun_enable on lun %jd\n", 4742 __func__, port->port_name, port->targ_port, 4743 retval, (intmax_t)lun->lun); 4744 } 4745 } 4746 4747 mtx_unlock(&softc->ctl_lock); 4748 ctl_isc_announce_lun(lun); 4749 4750 return (0); 4751} 4752 4753int 4754ctl_disable_lun(struct ctl_be_lun *be_lun) 4755{ 4756 struct ctl_softc *softc; 4757 struct ctl_port *port; 4758 struct ctl_lun *lun; 4759 int retval; 4760 4761 lun = (struct ctl_lun *)be_lun->ctl_lun; 4762 softc = lun->ctl_softc; 4763 4764 mtx_lock(&softc->ctl_lock); 4765 mtx_lock(&lun->lun_lock); 4766 if (lun->flags & CTL_LUN_DISABLED) { 4767 mtx_unlock(&lun->lun_lock); 4768 mtx_unlock(&softc->ctl_lock); 4769 return (0); 4770 } 4771 lun->flags |= CTL_LUN_DISABLED; 4772 mtx_unlock(&lun->lun_lock); 4773 4774 STAILQ_FOREACH(port, &softc->port_list, links) { 4775 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4776 port->lun_map != NULL || port->lun_disable == NULL) 4777 continue; 4778 4779 /* 4780 * Drop the lock before we call the frontend's disable 4781 * routine, to avoid lock order reversals. 4782 * 4783 * XXX KDM what happens if the frontend list changes while 4784 * we're traversing it? It's unlikely, but should be handled. 4785 */ 4786 mtx_unlock(&softc->ctl_lock); 4787 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4788 mtx_lock(&softc->ctl_lock); 4789 if (retval != 0) { 4790 printf("%s: FETD %s port %d returned error " 4791 "%d for lun_disable on lun %jd\n", 4792 __func__, port->port_name, port->targ_port, 4793 retval, (intmax_t)lun->lun); 4794 } 4795 } 4796 4797 mtx_unlock(&softc->ctl_lock); 4798 ctl_isc_announce_lun(lun); 4799 4800 return (0); 4801} 4802 4803int 4804ctl_start_lun(struct ctl_be_lun *be_lun) 4805{ 4806 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4807 4808 mtx_lock(&lun->lun_lock); 4809 lun->flags &= ~CTL_LUN_STOPPED; 4810 mtx_unlock(&lun->lun_lock); 4811 return (0); 4812} 4813 4814int 4815ctl_stop_lun(struct ctl_be_lun *be_lun) 4816{ 4817 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4818 4819 mtx_lock(&lun->lun_lock); 4820 lun->flags |= CTL_LUN_STOPPED; 4821 mtx_unlock(&lun->lun_lock); 4822 return (0); 4823} 4824 4825int 4826ctl_lun_offline(struct ctl_be_lun *be_lun) 4827{ 4828 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4829 4830 mtx_lock(&lun->lun_lock); 4831 lun->flags |= CTL_LUN_OFFLINE; 4832 mtx_unlock(&lun->lun_lock); 4833 return (0); 4834} 4835 4836int 4837ctl_lun_online(struct ctl_be_lun *be_lun) 4838{ 4839 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4840 4841 mtx_lock(&lun->lun_lock); 4842 lun->flags &= ~CTL_LUN_OFFLINE; 4843 mtx_unlock(&lun->lun_lock); 4844 return (0); 4845} 4846 4847int 4848ctl_lun_primary(struct ctl_be_lun *be_lun) 4849{ 4850 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4851 4852 mtx_lock(&lun->lun_lock); 4853 lun->flags |= CTL_LUN_PRIMARY_SC; 4854 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4855 mtx_unlock(&lun->lun_lock); 4856 ctl_isc_announce_lun(lun); 4857 return (0); 4858} 4859 4860int 4861ctl_lun_secondary(struct ctl_be_lun *be_lun) 4862{ 4863 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4864 4865 mtx_lock(&lun->lun_lock); 4866 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4867 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4868 mtx_unlock(&lun->lun_lock); 4869 ctl_isc_announce_lun(lun); 4870 return (0); 4871} 4872 4873int 4874ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4875{ 4876 struct ctl_softc *softc; 4877 struct ctl_lun *lun; 4878 4879 lun = (struct ctl_lun *)be_lun->ctl_lun; 4880 softc = lun->ctl_softc; 4881 4882 mtx_lock(&lun->lun_lock); 4883 4884 /* 4885 * The LUN needs to be disabled before it can be marked invalid. 4886 */ 4887 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4888 mtx_unlock(&lun->lun_lock); 4889 return (-1); 4890 } 4891 /* 4892 * Mark the LUN invalid. 4893 */ 4894 lun->flags |= CTL_LUN_INVALID; 4895 4896 /* 4897 * If there is nothing in the OOA queue, go ahead and free the LUN. 4898 * If we have something in the OOA queue, we'll free it when the 4899 * last I/O completes. 4900 */ 4901 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4902 mtx_unlock(&lun->lun_lock); 4903 mtx_lock(&softc->ctl_lock); 4904 ctl_free_lun(lun); 4905 mtx_unlock(&softc->ctl_lock); 4906 } else 4907 mtx_unlock(&lun->lun_lock); 4908 4909 return (0); 4910} 4911 4912int 4913ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4916 4917 mtx_lock(&lun->lun_lock); 4918 lun->flags |= CTL_LUN_INOPERABLE; 4919 mtx_unlock(&lun->lun_lock); 4920 return (0); 4921} 4922 4923int 4924ctl_lun_operable(struct ctl_be_lun *be_lun) 4925{ 4926 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4927 4928 mtx_lock(&lun->lun_lock); 4929 lun->flags &= ~CTL_LUN_INOPERABLE; 4930 mtx_unlock(&lun->lun_lock); 4931 return (0); 4932} 4933 4934void 4935ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4936{ 4937 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 union ctl_ha_msg msg; 4939 4940 mtx_lock(&lun->lun_lock); 4941 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4942 mtx_unlock(&lun->lun_lock); 4943 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4944 /* Send msg to other side. */ 4945 bzero(&msg.ua, sizeof(msg.ua)); 4946 msg.hdr.msg_type = CTL_MSG_UA; 4947 msg.hdr.nexus.initid = -1; 4948 msg.hdr.nexus.targ_port = -1; 4949 msg.hdr.nexus.targ_lun = lun->lun; 4950 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4951 msg.ua.ua_all = 1; 4952 msg.ua.ua_set = 1; 4953 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4954 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4955 M_WAITOK); 4956 } 4957} 4958 4959/* 4960 * Backend "memory move is complete" callback for requests that never 4961 * make it down to say RAIDCore's configuration code. 4962 */ 4963int 4964ctl_config_move_done(union ctl_io *io) 4965{ 4966 int retval; 4967 4968 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4969 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4970 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4971 4972 if ((io->io_hdr.port_status != 0) && 4973 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4974 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4975 /* 4976 * For hardware error sense keys, the sense key 4977 * specific value is defined to be a retry count, 4978 * but we use it to pass back an internal FETD 4979 * error code. XXX KDM Hopefully the FETD is only 4980 * using 16 bits for an error code, since that's 4981 * all the space we have in the sks field. 4982 */ 4983 ctl_set_internal_failure(&io->scsiio, 4984 /*sks_valid*/ 1, 4985 /*retry_count*/ 4986 io->io_hdr.port_status); 4987 } 4988 4989 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4990 ctl_data_print(io); 4991 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4992 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4993 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4994 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4995 /* 4996 * XXX KDM just assuming a single pointer here, and not a 4997 * S/G list. If we start using S/G lists for config data, 4998 * we'll need to know how to clean them up here as well. 4999 */ 5000 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5001 free(io->scsiio.kern_data_ptr, M_CTL); 5002 ctl_done(io); 5003 retval = CTL_RETVAL_COMPLETE; 5004 } else { 5005 /* 5006 * XXX KDM now we need to continue data movement. Some 5007 * options: 5008 * - call ctl_scsiio() again? We don't do this for data 5009 * writes, because for those at least we know ahead of 5010 * time where the write will go and how long it is. For 5011 * config writes, though, that information is largely 5012 * contained within the write itself, thus we need to 5013 * parse out the data again. 5014 * 5015 * - Call some other function once the data is in? 5016 */ 5017 5018 /* 5019 * XXX KDM call ctl_scsiio() again for now, and check flag 5020 * bits to see whether we're allocated or not. 5021 */ 5022 retval = ctl_scsiio(&io->scsiio); 5023 } 5024 return (retval); 5025} 5026 5027/* 5028 * This gets called by a backend driver when it is done with a 5029 * data_submit method. 5030 */ 5031void 5032ctl_data_submit_done(union ctl_io *io) 5033{ 5034 /* 5035 * If the IO_CONT flag is set, we need to call the supplied 5036 * function to continue processing the I/O, instead of completing 5037 * the I/O just yet. 5038 * 5039 * If there is an error, though, we don't want to keep processing. 5040 * Instead, just send status back to the initiator. 5041 */ 5042 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5043 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5044 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5045 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5046 io->scsiio.io_cont(io); 5047 return; 5048 } 5049 ctl_done(io); 5050} 5051 5052/* 5053 * This gets called by a backend driver when it is done with a 5054 * configuration write. 5055 */ 5056void 5057ctl_config_write_done(union ctl_io *io) 5058{ 5059 uint8_t *buf; 5060 5061 /* 5062 * If the IO_CONT flag is set, we need to call the supplied 5063 * function to continue processing the I/O, instead of completing 5064 * the I/O just yet. 5065 * 5066 * If there is an error, though, we don't want to keep processing. 5067 * Instead, just send status back to the initiator. 5068 */ 5069 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5070 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5071 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5072 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5073 io->scsiio.io_cont(io); 5074 return; 5075 } 5076 /* 5077 * Since a configuration write can be done for commands that actually 5078 * have data allocated, like write buffer, and commands that have 5079 * no data, like start/stop unit, we need to check here. 5080 */ 5081 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5082 buf = io->scsiio.kern_data_ptr; 5083 else 5084 buf = NULL; 5085 ctl_done(io); 5086 if (buf) 5087 free(buf, M_CTL); 5088} 5089 5090void 5091ctl_config_read_done(union ctl_io *io) 5092{ 5093 uint8_t *buf; 5094 5095 /* 5096 * If there is some error -- we are done, skip data transfer. 5097 */ 5098 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5099 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5100 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5101 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5102 buf = io->scsiio.kern_data_ptr; 5103 else 5104 buf = NULL; 5105 ctl_done(io); 5106 if (buf) 5107 free(buf, M_CTL); 5108 return; 5109 } 5110 5111 /* 5112 * If the IO_CONT flag is set, we need to call the supplied 5113 * function to continue processing the I/O, instead of completing 5114 * the I/O just yet. 5115 */ 5116 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5117 io->scsiio.io_cont(io); 5118 return; 5119 } 5120 5121 ctl_datamove(io); 5122} 5123 5124/* 5125 * SCSI release command. 5126 */ 5127int 5128ctl_scsi_release(struct ctl_scsiio *ctsio) 5129{ 5130 int length, longid, thirdparty_id, resv_id; 5131 struct ctl_lun *lun; 5132 uint32_t residx; 5133 5134 length = 0; 5135 resv_id = 0; 5136 5137 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5138 5139 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5141 5142 switch (ctsio->cdb[0]) { 5143 case RELEASE_10: { 5144 struct scsi_release_10 *cdb; 5145 5146 cdb = (struct scsi_release_10 *)ctsio->cdb; 5147 5148 if (cdb->byte2 & SR10_LONGID) 5149 longid = 1; 5150 else 5151 thirdparty_id = cdb->thirdparty_id; 5152 5153 resv_id = cdb->resv_id; 5154 length = scsi_2btoul(cdb->length); 5155 break; 5156 } 5157 } 5158 5159 5160 /* 5161 * XXX KDM right now, we only support LUN reservation. We don't 5162 * support 3rd party reservations, or extent reservations, which 5163 * might actually need the parameter list. If we've gotten this 5164 * far, we've got a LUN reservation. Anything else got kicked out 5165 * above. So, according to SPC, ignore the length. 5166 */ 5167 length = 0; 5168 5169 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5170 && (length > 0)) { 5171 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5172 ctsio->kern_data_len = length; 5173 ctsio->kern_total_len = length; 5174 ctsio->kern_data_resid = 0; 5175 ctsio->kern_rel_offset = 0; 5176 ctsio->kern_sg_entries = 0; 5177 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5178 ctsio->be_move_done = ctl_config_move_done; 5179 ctl_datamove((union ctl_io *)ctsio); 5180 5181 return (CTL_RETVAL_COMPLETE); 5182 } 5183 5184 if (length > 0) 5185 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5186 5187 mtx_lock(&lun->lun_lock); 5188 5189 /* 5190 * According to SPC, it is not an error for an intiator to attempt 5191 * to release a reservation on a LUN that isn't reserved, or that 5192 * is reserved by another initiator. The reservation can only be 5193 * released, though, by the initiator who made it or by one of 5194 * several reset type events. 5195 */ 5196 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5197 lun->flags &= ~CTL_LUN_RESERVED; 5198 5199 mtx_unlock(&lun->lun_lock); 5200 5201 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5202 free(ctsio->kern_data_ptr, M_CTL); 5203 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5204 } 5205 5206 ctl_set_success(ctsio); 5207 ctl_done((union ctl_io *)ctsio); 5208 return (CTL_RETVAL_COMPLETE); 5209} 5210 5211int 5212ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5213{ 5214 int extent, thirdparty, longid; 5215 int resv_id, length; 5216 uint64_t thirdparty_id; 5217 struct ctl_lun *lun; 5218 uint32_t residx; 5219 5220 extent = 0; 5221 thirdparty = 0; 5222 longid = 0; 5223 resv_id = 0; 5224 length = 0; 5225 thirdparty_id = 0; 5226 5227 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5228 5229 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5230 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5231 5232 switch (ctsio->cdb[0]) { 5233 case RESERVE_10: { 5234 struct scsi_reserve_10 *cdb; 5235 5236 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5237 5238 if (cdb->byte2 & SR10_LONGID) 5239 longid = 1; 5240 else 5241 thirdparty_id = cdb->thirdparty_id; 5242 5243 resv_id = cdb->resv_id; 5244 length = scsi_2btoul(cdb->length); 5245 break; 5246 } 5247 } 5248 5249 /* 5250 * XXX KDM right now, we only support LUN reservation. We don't 5251 * support 3rd party reservations, or extent reservations, which 5252 * might actually need the parameter list. If we've gotten this 5253 * far, we've got a LUN reservation. Anything else got kicked out 5254 * above. So, according to SPC, ignore the length. 5255 */ 5256 length = 0; 5257 5258 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5259 && (length > 0)) { 5260 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5261 ctsio->kern_data_len = length; 5262 ctsio->kern_total_len = length; 5263 ctsio->kern_data_resid = 0; 5264 ctsio->kern_rel_offset = 0; 5265 ctsio->kern_sg_entries = 0; 5266 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5267 ctsio->be_move_done = ctl_config_move_done; 5268 ctl_datamove((union ctl_io *)ctsio); 5269 5270 return (CTL_RETVAL_COMPLETE); 5271 } 5272 5273 if (length > 0) 5274 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5275 5276 mtx_lock(&lun->lun_lock); 5277 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5278 ctl_set_reservation_conflict(ctsio); 5279 goto bailout; 5280 } 5281 5282 lun->flags |= CTL_LUN_RESERVED; 5283 lun->res_idx = residx; 5284 5285 ctl_set_success(ctsio); 5286 5287bailout: 5288 mtx_unlock(&lun->lun_lock); 5289 5290 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5291 free(ctsio->kern_data_ptr, M_CTL); 5292 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5293 } 5294 5295 ctl_done((union ctl_io *)ctsio); 5296 return (CTL_RETVAL_COMPLETE); 5297} 5298 5299int 5300ctl_start_stop(struct ctl_scsiio *ctsio) 5301{ 5302 struct scsi_start_stop_unit *cdb; 5303 struct ctl_lun *lun; 5304 int retval; 5305 5306 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5307 5308 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5309 retval = 0; 5310 5311 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5312 5313 /* 5314 * XXX KDM 5315 * We don't support the immediate bit on a stop unit. In order to 5316 * do that, we would need to code up a way to know that a stop is 5317 * pending, and hold off any new commands until it completes, one 5318 * way or another. Then we could accept or reject those commands 5319 * depending on its status. We would almost need to do the reverse 5320 * of what we do below for an immediate start -- return the copy of 5321 * the ctl_io to the FETD with status to send to the host (and to 5322 * free the copy!) and then free the original I/O once the stop 5323 * actually completes. That way, the OOA queue mechanism can work 5324 * to block commands that shouldn't proceed. Another alternative 5325 * would be to put the copy in the queue in place of the original, 5326 * and return the original back to the caller. That could be 5327 * slightly safer.. 5328 */ 5329 if ((cdb->byte2 & SSS_IMMED) 5330 && ((cdb->how & SSS_START) == 0)) { 5331 ctl_set_invalid_field(ctsio, 5332 /*sks_valid*/ 1, 5333 /*command*/ 1, 5334 /*field*/ 1, 5335 /*bit_valid*/ 1, 5336 /*bit*/ 0); 5337 ctl_done((union ctl_io *)ctsio); 5338 return (CTL_RETVAL_COMPLETE); 5339 } 5340 5341 if ((lun->flags & CTL_LUN_PR_RESERVED) 5342 && ((cdb->how & SSS_START)==0)) { 5343 uint32_t residx; 5344 5345 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5346 if (ctl_get_prkey(lun, residx) == 0 5347 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5348 5349 ctl_set_reservation_conflict(ctsio); 5350 ctl_done((union ctl_io *)ctsio); 5351 return (CTL_RETVAL_COMPLETE); 5352 } 5353 } 5354 5355 /* 5356 * If there is no backend on this device, we can't start or stop 5357 * it. In theory we shouldn't get any start/stop commands in the 5358 * first place at this level if the LUN doesn't have a backend. 5359 * That should get stopped by the command decode code. 5360 */ 5361 if (lun->backend == NULL) { 5362 ctl_set_invalid_opcode(ctsio); 5363 ctl_done((union ctl_io *)ctsio); 5364 return (CTL_RETVAL_COMPLETE); 5365 } 5366 5367 /* 5368 * XXX KDM Copan-specific offline behavior. 5369 * Figure out a reasonable way to port this? 5370 */ 5371#ifdef NEEDTOPORT 5372 mtx_lock(&lun->lun_lock); 5373 5374 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5375 && (lun->flags & CTL_LUN_OFFLINE)) { 5376 /* 5377 * If the LUN is offline, and the on/offline bit isn't set, 5378 * reject the start or stop. Otherwise, let it through. 5379 */ 5380 mtx_unlock(&lun->lun_lock); 5381 ctl_set_lun_not_ready(ctsio); 5382 ctl_done((union ctl_io *)ctsio); 5383 } else { 5384 mtx_unlock(&lun->lun_lock); 5385#endif /* NEEDTOPORT */ 5386 /* 5387 * This could be a start or a stop when we're online, 5388 * or a stop/offline or start/online. A start or stop when 5389 * we're offline is covered in the case above. 5390 */ 5391 /* 5392 * In the non-immediate case, we send the request to 5393 * the backend and return status to the user when 5394 * it is done. 5395 * 5396 * In the immediate case, we allocate a new ctl_io 5397 * to hold a copy of the request, and send that to 5398 * the backend. We then set good status on the 5399 * user's request and return it immediately. 5400 */ 5401 if (cdb->byte2 & SSS_IMMED) { 5402 union ctl_io *new_io; 5403 5404 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5405 ctl_copy_io((union ctl_io *)ctsio, new_io); 5406 retval = lun->backend->config_write(new_io); 5407 ctl_set_success(ctsio); 5408 ctl_done((union ctl_io *)ctsio); 5409 } else { 5410 retval = lun->backend->config_write( 5411 (union ctl_io *)ctsio); 5412 } 5413#ifdef NEEDTOPORT 5414 } 5415#endif 5416 return (retval); 5417} 5418 5419/* 5420 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5421 * we don't really do anything with the LBA and length fields if the user 5422 * passes them in. Instead we'll just flush out the cache for the entire 5423 * LUN. 5424 */ 5425int 5426ctl_sync_cache(struct ctl_scsiio *ctsio) 5427{ 5428 struct ctl_lun *lun; 5429 struct ctl_softc *softc; 5430 struct ctl_lba_len_flags *lbalen; 5431 uint64_t starting_lba; 5432 uint32_t block_count; 5433 int retval; 5434 uint8_t byte2; 5435 5436 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5437 5438 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5439 softc = lun->ctl_softc; 5440 retval = 0; 5441 5442 switch (ctsio->cdb[0]) { 5443 case SYNCHRONIZE_CACHE: { 5444 struct scsi_sync_cache *cdb; 5445 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5446 5447 starting_lba = scsi_4btoul(cdb->begin_lba); 5448 block_count = scsi_2btoul(cdb->lb_count); 5449 byte2 = cdb->byte2; 5450 break; 5451 } 5452 case SYNCHRONIZE_CACHE_16: { 5453 struct scsi_sync_cache_16 *cdb; 5454 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5455 5456 starting_lba = scsi_8btou64(cdb->begin_lba); 5457 block_count = scsi_4btoul(cdb->lb_count); 5458 byte2 = cdb->byte2; 5459 break; 5460 } 5461 default: 5462 ctl_set_invalid_opcode(ctsio); 5463 ctl_done((union ctl_io *)ctsio); 5464 goto bailout; 5465 break; /* NOTREACHED */ 5466 } 5467 5468 /* 5469 * We check the LBA and length, but don't do anything with them. 5470 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5471 * get flushed. This check will just help satisfy anyone who wants 5472 * to see an error for an out of range LBA. 5473 */ 5474 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5475 ctl_set_lba_out_of_range(ctsio); 5476 ctl_done((union ctl_io *)ctsio); 5477 goto bailout; 5478 } 5479 5480 /* 5481 * If this LUN has no backend, we can't flush the cache anyway. 5482 */ 5483 if (lun->backend == NULL) { 5484 ctl_set_invalid_opcode(ctsio); 5485 ctl_done((union ctl_io *)ctsio); 5486 goto bailout; 5487 } 5488 5489 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5490 lbalen->lba = starting_lba; 5491 lbalen->len = block_count; 5492 lbalen->flags = byte2; 5493 5494 /* 5495 * Check to see whether we're configured to send the SYNCHRONIZE 5496 * CACHE command directly to the back end. 5497 */ 5498 mtx_lock(&lun->lun_lock); 5499 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5500 && (++(lun->sync_count) >= lun->sync_interval)) { 5501 lun->sync_count = 0; 5502 mtx_unlock(&lun->lun_lock); 5503 retval = lun->backend->config_write((union ctl_io *)ctsio); 5504 } else { 5505 mtx_unlock(&lun->lun_lock); 5506 ctl_set_success(ctsio); 5507 ctl_done((union ctl_io *)ctsio); 5508 } 5509 5510bailout: 5511 5512 return (retval); 5513} 5514 5515int 5516ctl_format(struct ctl_scsiio *ctsio) 5517{ 5518 struct scsi_format *cdb; 5519 struct ctl_lun *lun; 5520 int length, defect_list_len; 5521 5522 CTL_DEBUG_PRINT(("ctl_format\n")); 5523 5524 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5525 5526 cdb = (struct scsi_format *)ctsio->cdb; 5527 5528 length = 0; 5529 if (cdb->byte2 & SF_FMTDATA) { 5530 if (cdb->byte2 & SF_LONGLIST) 5531 length = sizeof(struct scsi_format_header_long); 5532 else 5533 length = sizeof(struct scsi_format_header_short); 5534 } 5535 5536 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5537 && (length > 0)) { 5538 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5539 ctsio->kern_data_len = length; 5540 ctsio->kern_total_len = length; 5541 ctsio->kern_data_resid = 0; 5542 ctsio->kern_rel_offset = 0; 5543 ctsio->kern_sg_entries = 0; 5544 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5545 ctsio->be_move_done = ctl_config_move_done; 5546 ctl_datamove((union ctl_io *)ctsio); 5547 5548 return (CTL_RETVAL_COMPLETE); 5549 } 5550 5551 defect_list_len = 0; 5552 5553 if (cdb->byte2 & SF_FMTDATA) { 5554 if (cdb->byte2 & SF_LONGLIST) { 5555 struct scsi_format_header_long *header; 5556 5557 header = (struct scsi_format_header_long *) 5558 ctsio->kern_data_ptr; 5559 5560 defect_list_len = scsi_4btoul(header->defect_list_len); 5561 if (defect_list_len != 0) { 5562 ctl_set_invalid_field(ctsio, 5563 /*sks_valid*/ 1, 5564 /*command*/ 0, 5565 /*field*/ 2, 5566 /*bit_valid*/ 0, 5567 /*bit*/ 0); 5568 goto bailout; 5569 } 5570 } else { 5571 struct scsi_format_header_short *header; 5572 5573 header = (struct scsi_format_header_short *) 5574 ctsio->kern_data_ptr; 5575 5576 defect_list_len = scsi_2btoul(header->defect_list_len); 5577 if (defect_list_len != 0) { 5578 ctl_set_invalid_field(ctsio, 5579 /*sks_valid*/ 1, 5580 /*command*/ 0, 5581 /*field*/ 2, 5582 /*bit_valid*/ 0, 5583 /*bit*/ 0); 5584 goto bailout; 5585 } 5586 } 5587 } 5588 5589 /* 5590 * The format command will clear out the "Medium format corrupted" 5591 * status if set by the configuration code. That status is really 5592 * just a way to notify the host that we have lost the media, and 5593 * get them to issue a command that will basically make them think 5594 * they're blowing away the media. 5595 */ 5596 mtx_lock(&lun->lun_lock); 5597 lun->flags &= ~CTL_LUN_INOPERABLE; 5598 mtx_unlock(&lun->lun_lock); 5599 5600 ctl_set_success(ctsio); 5601bailout: 5602 5603 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5604 free(ctsio->kern_data_ptr, M_CTL); 5605 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5606 } 5607 5608 ctl_done((union ctl_io *)ctsio); 5609 return (CTL_RETVAL_COMPLETE); 5610} 5611 5612int 5613ctl_read_buffer(struct ctl_scsiio *ctsio) 5614{ 5615 struct scsi_read_buffer *cdb; 5616 struct ctl_lun *lun; 5617 int buffer_offset, len; 5618 static uint8_t descr[4]; 5619 static uint8_t echo_descr[4] = { 0 }; 5620 5621 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5622 5623 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5624 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5625 5626 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5627 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5628 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5629 ctl_set_invalid_field(ctsio, 5630 /*sks_valid*/ 1, 5631 /*command*/ 1, 5632 /*field*/ 1, 5633 /*bit_valid*/ 1, 5634 /*bit*/ 4); 5635 ctl_done((union ctl_io *)ctsio); 5636 return (CTL_RETVAL_COMPLETE); 5637 } 5638 5639 len = scsi_3btoul(cdb->length); 5640 buffer_offset = scsi_3btoul(cdb->offset); 5641 5642 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5643 ctl_set_invalid_field(ctsio, 5644 /*sks_valid*/ 1, 5645 /*command*/ 1, 5646 /*field*/ 6, 5647 /*bit_valid*/ 0, 5648 /*bit*/ 0); 5649 ctl_done((union ctl_io *)ctsio); 5650 return (CTL_RETVAL_COMPLETE); 5651 } 5652 5653 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5654 descr[0] = 0; 5655 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5656 ctsio->kern_data_ptr = descr; 5657 len = min(len, sizeof(descr)); 5658 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5659 ctsio->kern_data_ptr = echo_descr; 5660 len = min(len, sizeof(echo_descr)); 5661 } else { 5662 if (lun->write_buffer == NULL) { 5663 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5664 M_CTL, M_WAITOK); 5665 } 5666 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5667 } 5668 ctsio->kern_data_len = len; 5669 ctsio->kern_total_len = len; 5670 ctsio->kern_data_resid = 0; 5671 ctsio->kern_rel_offset = 0; 5672 ctsio->kern_sg_entries = 0; 5673 ctl_set_success(ctsio); 5674 ctsio->be_move_done = ctl_config_move_done; 5675 ctl_datamove((union ctl_io *)ctsio); 5676 return (CTL_RETVAL_COMPLETE); 5677} 5678 5679int 5680ctl_write_buffer(struct ctl_scsiio *ctsio) 5681{ 5682 struct scsi_write_buffer *cdb; 5683 struct ctl_lun *lun; 5684 int buffer_offset, len; 5685 5686 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5687 5688 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5689 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5690 5691 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5692 ctl_set_invalid_field(ctsio, 5693 /*sks_valid*/ 1, 5694 /*command*/ 1, 5695 /*field*/ 1, 5696 /*bit_valid*/ 1, 5697 /*bit*/ 4); 5698 ctl_done((union ctl_io *)ctsio); 5699 return (CTL_RETVAL_COMPLETE); 5700 } 5701 5702 len = scsi_3btoul(cdb->length); 5703 buffer_offset = scsi_3btoul(cdb->offset); 5704 5705 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5706 ctl_set_invalid_field(ctsio, 5707 /*sks_valid*/ 1, 5708 /*command*/ 1, 5709 /*field*/ 6, 5710 /*bit_valid*/ 0, 5711 /*bit*/ 0); 5712 ctl_done((union ctl_io *)ctsio); 5713 return (CTL_RETVAL_COMPLETE); 5714 } 5715 5716 /* 5717 * If we've got a kernel request that hasn't been malloced yet, 5718 * malloc it and tell the caller the data buffer is here. 5719 */ 5720 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5721 if (lun->write_buffer == NULL) { 5722 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5723 M_CTL, M_WAITOK); 5724 } 5725 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5726 ctsio->kern_data_len = len; 5727 ctsio->kern_total_len = len; 5728 ctsio->kern_data_resid = 0; 5729 ctsio->kern_rel_offset = 0; 5730 ctsio->kern_sg_entries = 0; 5731 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5732 ctsio->be_move_done = ctl_config_move_done; 5733 ctl_datamove((union ctl_io *)ctsio); 5734 5735 return (CTL_RETVAL_COMPLETE); 5736 } 5737 5738 ctl_set_success(ctsio); 5739 ctl_done((union ctl_io *)ctsio); 5740 return (CTL_RETVAL_COMPLETE); 5741} 5742 5743int 5744ctl_write_same(struct ctl_scsiio *ctsio) 5745{ 5746 struct ctl_lun *lun; 5747 struct ctl_lba_len_flags *lbalen; 5748 uint64_t lba; 5749 uint32_t num_blocks; 5750 int len, retval; 5751 uint8_t byte2; 5752 5753 retval = CTL_RETVAL_COMPLETE; 5754 5755 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5756 5757 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5758 5759 switch (ctsio->cdb[0]) { 5760 case WRITE_SAME_10: { 5761 struct scsi_write_same_10 *cdb; 5762 5763 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5764 5765 lba = scsi_4btoul(cdb->addr); 5766 num_blocks = scsi_2btoul(cdb->length); 5767 byte2 = cdb->byte2; 5768 break; 5769 } 5770 case WRITE_SAME_16: { 5771 struct scsi_write_same_16 *cdb; 5772 5773 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5774 5775 lba = scsi_8btou64(cdb->addr); 5776 num_blocks = scsi_4btoul(cdb->length); 5777 byte2 = cdb->byte2; 5778 break; 5779 } 5780 default: 5781 /* 5782 * We got a command we don't support. This shouldn't 5783 * happen, commands should be filtered out above us. 5784 */ 5785 ctl_set_invalid_opcode(ctsio); 5786 ctl_done((union ctl_io *)ctsio); 5787 5788 return (CTL_RETVAL_COMPLETE); 5789 break; /* NOTREACHED */ 5790 } 5791 5792 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5793 if ((byte2 & SWS_UNMAP) == 0 && 5794 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5795 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5796 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5797 ctl_done((union ctl_io *)ctsio); 5798 return (CTL_RETVAL_COMPLETE); 5799 } 5800 5801 /* 5802 * The first check is to make sure we're in bounds, the second 5803 * check is to catch wrap-around problems. If the lba + num blocks 5804 * is less than the lba, then we've wrapped around and the block 5805 * range is invalid anyway. 5806 */ 5807 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5808 || ((lba + num_blocks) < lba)) { 5809 ctl_set_lba_out_of_range(ctsio); 5810 ctl_done((union ctl_io *)ctsio); 5811 return (CTL_RETVAL_COMPLETE); 5812 } 5813 5814 /* Zero number of blocks means "to the last logical block" */ 5815 if (num_blocks == 0) { 5816 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5817 ctl_set_invalid_field(ctsio, 5818 /*sks_valid*/ 0, 5819 /*command*/ 1, 5820 /*field*/ 0, 5821 /*bit_valid*/ 0, 5822 /*bit*/ 0); 5823 ctl_done((union ctl_io *)ctsio); 5824 return (CTL_RETVAL_COMPLETE); 5825 } 5826 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5827 } 5828 5829 len = lun->be_lun->blocksize; 5830 5831 /* 5832 * If we've got a kernel request that hasn't been malloced yet, 5833 * malloc it and tell the caller the data buffer is here. 5834 */ 5835 if ((byte2 & SWS_NDOB) == 0 && 5836 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5837 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5838 ctsio->kern_data_len = len; 5839 ctsio->kern_total_len = len; 5840 ctsio->kern_data_resid = 0; 5841 ctsio->kern_rel_offset = 0; 5842 ctsio->kern_sg_entries = 0; 5843 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5844 ctsio->be_move_done = ctl_config_move_done; 5845 ctl_datamove((union ctl_io *)ctsio); 5846 5847 return (CTL_RETVAL_COMPLETE); 5848 } 5849 5850 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5851 lbalen->lba = lba; 5852 lbalen->len = num_blocks; 5853 lbalen->flags = byte2; 5854 retval = lun->backend->config_write((union ctl_io *)ctsio); 5855 5856 return (retval); 5857} 5858 5859int 5860ctl_unmap(struct ctl_scsiio *ctsio) 5861{ 5862 struct ctl_lun *lun; 5863 struct scsi_unmap *cdb; 5864 struct ctl_ptr_len_flags *ptrlen; 5865 struct scsi_unmap_header *hdr; 5866 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5867 uint64_t lba; 5868 uint32_t num_blocks; 5869 int len, retval; 5870 uint8_t byte2; 5871 5872 retval = CTL_RETVAL_COMPLETE; 5873 5874 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5875 5876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5877 cdb = (struct scsi_unmap *)ctsio->cdb; 5878 5879 len = scsi_2btoul(cdb->length); 5880 byte2 = cdb->byte2; 5881 5882 /* 5883 * If we've got a kernel request that hasn't been malloced yet, 5884 * malloc it and tell the caller the data buffer is here. 5885 */ 5886 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5887 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5888 ctsio->kern_data_len = len; 5889 ctsio->kern_total_len = len; 5890 ctsio->kern_data_resid = 0; 5891 ctsio->kern_rel_offset = 0; 5892 ctsio->kern_sg_entries = 0; 5893 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5894 ctsio->be_move_done = ctl_config_move_done; 5895 ctl_datamove((union ctl_io *)ctsio); 5896 5897 return (CTL_RETVAL_COMPLETE); 5898 } 5899 5900 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5901 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5902 if (len < sizeof (*hdr) || 5903 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5904 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5905 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5906 ctl_set_invalid_field(ctsio, 5907 /*sks_valid*/ 0, 5908 /*command*/ 0, 5909 /*field*/ 0, 5910 /*bit_valid*/ 0, 5911 /*bit*/ 0); 5912 goto done; 5913 } 5914 len = scsi_2btoul(hdr->desc_length); 5915 buf = (struct scsi_unmap_desc *)(hdr + 1); 5916 end = buf + len / sizeof(*buf); 5917 5918 endnz = buf; 5919 for (range = buf; range < end; range++) { 5920 lba = scsi_8btou64(range->lba); 5921 num_blocks = scsi_4btoul(range->length); 5922 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5923 || ((lba + num_blocks) < lba)) { 5924 ctl_set_lba_out_of_range(ctsio); 5925 ctl_done((union ctl_io *)ctsio); 5926 return (CTL_RETVAL_COMPLETE); 5927 } 5928 if (num_blocks != 0) 5929 endnz = range + 1; 5930 } 5931 5932 /* 5933 * Block backend can not handle zero last range. 5934 * Filter it out and return if there is nothing left. 5935 */ 5936 len = (uint8_t *)endnz - (uint8_t *)buf; 5937 if (len == 0) { 5938 ctl_set_success(ctsio); 5939 goto done; 5940 } 5941 5942 mtx_lock(&lun->lun_lock); 5943 ptrlen = (struct ctl_ptr_len_flags *) 5944 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5945 ptrlen->ptr = (void *)buf; 5946 ptrlen->len = len; 5947 ptrlen->flags = byte2; 5948 ctl_check_blocked(lun); 5949 mtx_unlock(&lun->lun_lock); 5950 5951 retval = lun->backend->config_write((union ctl_io *)ctsio); 5952 return (retval); 5953 5954done: 5955 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5956 free(ctsio->kern_data_ptr, M_CTL); 5957 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5958 } 5959 ctl_done((union ctl_io *)ctsio); 5960 return (CTL_RETVAL_COMPLETE); 5961} 5962 5963/* 5964 * Note that this function currently doesn't actually do anything inside 5965 * CTL to enforce things if the DQue bit is turned on. 5966 * 5967 * Also note that this function can't be used in the default case, because 5968 * the DQue bit isn't set in the changeable mask for the control mode page 5969 * anyway. This is just here as an example for how to implement a page 5970 * handler, and a placeholder in case we want to allow the user to turn 5971 * tagged queueing on and off. 5972 * 5973 * The D_SENSE bit handling is functional, however, and will turn 5974 * descriptor sense on and off for a given LUN. 5975 */ 5976int 5977ctl_control_page_handler(struct ctl_scsiio *ctsio, 5978 struct ctl_page_index *page_index, uint8_t *page_ptr) 5979{ 5980 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5981 struct ctl_lun *lun; 5982 int set_ua; 5983 uint32_t initidx; 5984 5985 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5986 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5987 set_ua = 0; 5988 5989 user_cp = (struct scsi_control_page *)page_ptr; 5990 current_cp = (struct scsi_control_page *) 5991 (page_index->page_data + (page_index->page_len * 5992 CTL_PAGE_CURRENT)); 5993 saved_cp = (struct scsi_control_page *) 5994 (page_index->page_data + (page_index->page_len * 5995 CTL_PAGE_SAVED)); 5996 5997 mtx_lock(&lun->lun_lock); 5998 if (((current_cp->rlec & SCP_DSENSE) == 0) 5999 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6000 /* 6001 * Descriptor sense is currently turned off and the user 6002 * wants to turn it on. 6003 */ 6004 current_cp->rlec |= SCP_DSENSE; 6005 saved_cp->rlec |= SCP_DSENSE; 6006 lun->flags |= CTL_LUN_SENSE_DESC; 6007 set_ua = 1; 6008 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6009 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6010 /* 6011 * Descriptor sense is currently turned on, and the user 6012 * wants to turn it off. 6013 */ 6014 current_cp->rlec &= ~SCP_DSENSE; 6015 saved_cp->rlec &= ~SCP_DSENSE; 6016 lun->flags &= ~CTL_LUN_SENSE_DESC; 6017 set_ua = 1; 6018 } 6019 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6020 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6021 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6022 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6023 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6024 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6025 set_ua = 1; 6026 } 6027 if ((current_cp->eca_and_aen & SCP_SWP) != 6028 (user_cp->eca_and_aen & SCP_SWP)) { 6029 current_cp->eca_and_aen &= ~SCP_SWP; 6030 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6031 saved_cp->eca_and_aen &= ~SCP_SWP; 6032 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6033 set_ua = 1; 6034 } 6035 if (set_ua != 0) 6036 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6037 mtx_unlock(&lun->lun_lock); 6038 if (set_ua) { 6039 ctl_isc_announce_mode(lun, 6040 ctl_get_initindex(&ctsio->io_hdr.nexus), 6041 page_index->page_code, page_index->subpage); 6042 } 6043 return (0); 6044} 6045 6046int 6047ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6048 struct ctl_page_index *page_index, uint8_t *page_ptr) 6049{ 6050 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6051 struct ctl_lun *lun; 6052 int set_ua; 6053 uint32_t initidx; 6054 6055 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6056 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6057 set_ua = 0; 6058 6059 user_cp = (struct scsi_caching_page *)page_ptr; 6060 current_cp = (struct scsi_caching_page *) 6061 (page_index->page_data + (page_index->page_len * 6062 CTL_PAGE_CURRENT)); 6063 saved_cp = (struct scsi_caching_page *) 6064 (page_index->page_data + (page_index->page_len * 6065 CTL_PAGE_SAVED)); 6066 6067 mtx_lock(&lun->lun_lock); 6068 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6069 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6070 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6071 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6072 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6073 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6074 set_ua = 1; 6075 } 6076 if (set_ua != 0) 6077 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6078 mtx_unlock(&lun->lun_lock); 6079 if (set_ua) { 6080 ctl_isc_announce_mode(lun, 6081 ctl_get_initindex(&ctsio->io_hdr.nexus), 6082 page_index->page_code, page_index->subpage); 6083 } 6084 return (0); 6085} 6086 6087int 6088ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6089 struct ctl_page_index *page_index, 6090 uint8_t *page_ptr) 6091{ 6092 uint8_t *c; 6093 int i; 6094 6095 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6096 ctl_time_io_secs = 6097 (c[0] << 8) | 6098 (c[1] << 0) | 6099 0; 6100 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6101 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6102 printf("page data:"); 6103 for (i=0; i<8; i++) 6104 printf(" %.2x",page_ptr[i]); 6105 printf("\n"); 6106 return (0); 6107} 6108 6109int 6110ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6111 struct ctl_page_index *page_index, 6112 int pc) 6113{ 6114 struct copan_debugconf_subpage *page; 6115 6116 page = (struct copan_debugconf_subpage *)page_index->page_data + 6117 (page_index->page_len * pc); 6118 6119 switch (pc) { 6120 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6121 case SMS_PAGE_CTRL_DEFAULT >> 6: 6122 case SMS_PAGE_CTRL_SAVED >> 6: 6123 /* 6124 * We don't update the changable or default bits for this page. 6125 */ 6126 break; 6127 case SMS_PAGE_CTRL_CURRENT >> 6: 6128 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6129 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6130 break; 6131 default: 6132#ifdef NEEDTOPORT 6133 EPRINT(0, "Invalid PC %d!!", pc); 6134#endif /* NEEDTOPORT */ 6135 break; 6136 } 6137 return (0); 6138} 6139 6140 6141static int 6142ctl_do_mode_select(union ctl_io *io) 6143{ 6144 struct scsi_mode_page_header *page_header; 6145 struct ctl_page_index *page_index; 6146 struct ctl_scsiio *ctsio; 6147 int control_dev, page_len; 6148 int page_len_offset, page_len_size; 6149 union ctl_modepage_info *modepage_info; 6150 struct ctl_lun *lun; 6151 int *len_left, *len_used; 6152 int retval, i; 6153 6154 ctsio = &io->scsiio; 6155 page_index = NULL; 6156 page_len = 0; 6157 retval = CTL_RETVAL_COMPLETE; 6158 6159 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6160 6161 if (lun->be_lun->lun_type != T_DIRECT) 6162 control_dev = 1; 6163 else 6164 control_dev = 0; 6165 6166 modepage_info = (union ctl_modepage_info *) 6167 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6168 len_left = &modepage_info->header.len_left; 6169 len_used = &modepage_info->header.len_used; 6170 6171do_next_page: 6172 6173 page_header = (struct scsi_mode_page_header *) 6174 (ctsio->kern_data_ptr + *len_used); 6175 6176 if (*len_left == 0) { 6177 free(ctsio->kern_data_ptr, M_CTL); 6178 ctl_set_success(ctsio); 6179 ctl_done((union ctl_io *)ctsio); 6180 return (CTL_RETVAL_COMPLETE); 6181 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6182 6183 free(ctsio->kern_data_ptr, M_CTL); 6184 ctl_set_param_len_error(ctsio); 6185 ctl_done((union ctl_io *)ctsio); 6186 return (CTL_RETVAL_COMPLETE); 6187 6188 } else if ((page_header->page_code & SMPH_SPF) 6189 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6190 6191 free(ctsio->kern_data_ptr, M_CTL); 6192 ctl_set_param_len_error(ctsio); 6193 ctl_done((union ctl_io *)ctsio); 6194 return (CTL_RETVAL_COMPLETE); 6195 } 6196 6197 6198 /* 6199 * XXX KDM should we do something with the block descriptor? 6200 */ 6201 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6202 6203 if ((control_dev != 0) 6204 && (lun->mode_pages.index[i].page_flags & 6205 CTL_PAGE_FLAG_DISK_ONLY)) 6206 continue; 6207 6208 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6209 (page_header->page_code & SMPH_PC_MASK)) 6210 continue; 6211 6212 /* 6213 * If neither page has a subpage code, then we've got a 6214 * match. 6215 */ 6216 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6217 && ((page_header->page_code & SMPH_SPF) == 0)) { 6218 page_index = &lun->mode_pages.index[i]; 6219 page_len = page_header->page_length; 6220 break; 6221 } 6222 6223 /* 6224 * If both pages have subpages, then the subpage numbers 6225 * have to match. 6226 */ 6227 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6228 && (page_header->page_code & SMPH_SPF)) { 6229 struct scsi_mode_page_header_sp *sph; 6230 6231 sph = (struct scsi_mode_page_header_sp *)page_header; 6232 6233 if (lun->mode_pages.index[i].subpage == 6234 sph->subpage) { 6235 page_index = &lun->mode_pages.index[i]; 6236 page_len = scsi_2btoul(sph->page_length); 6237 break; 6238 } 6239 } 6240 } 6241 6242 /* 6243 * If we couldn't find the page, or if we don't have a mode select 6244 * handler for it, send back an error to the user. 6245 */ 6246 if ((page_index == NULL) 6247 || (page_index->select_handler == NULL)) { 6248 ctl_set_invalid_field(ctsio, 6249 /*sks_valid*/ 1, 6250 /*command*/ 0, 6251 /*field*/ *len_used, 6252 /*bit_valid*/ 0, 6253 /*bit*/ 0); 6254 free(ctsio->kern_data_ptr, M_CTL); 6255 ctl_done((union ctl_io *)ctsio); 6256 return (CTL_RETVAL_COMPLETE); 6257 } 6258 6259 if (page_index->page_code & SMPH_SPF) { 6260 page_len_offset = 2; 6261 page_len_size = 2; 6262 } else { 6263 page_len_size = 1; 6264 page_len_offset = 1; 6265 } 6266 6267 /* 6268 * If the length the initiator gives us isn't the one we specify in 6269 * the mode page header, or if they didn't specify enough data in 6270 * the CDB to avoid truncating this page, kick out the request. 6271 */ 6272 if ((page_len != (page_index->page_len - page_len_offset - 6273 page_len_size)) 6274 || (*len_left < page_index->page_len)) { 6275 6276 6277 ctl_set_invalid_field(ctsio, 6278 /*sks_valid*/ 1, 6279 /*command*/ 0, 6280 /*field*/ *len_used + page_len_offset, 6281 /*bit_valid*/ 0, 6282 /*bit*/ 0); 6283 free(ctsio->kern_data_ptr, M_CTL); 6284 ctl_done((union ctl_io *)ctsio); 6285 return (CTL_RETVAL_COMPLETE); 6286 } 6287 6288 /* 6289 * Run through the mode page, checking to make sure that the bits 6290 * the user changed are actually legal for him to change. 6291 */ 6292 for (i = 0; i < page_index->page_len; i++) { 6293 uint8_t *user_byte, *change_mask, *current_byte; 6294 int bad_bit; 6295 int j; 6296 6297 user_byte = (uint8_t *)page_header + i; 6298 change_mask = page_index->page_data + 6299 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6300 current_byte = page_index->page_data + 6301 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6302 6303 /* 6304 * Check to see whether the user set any bits in this byte 6305 * that he is not allowed to set. 6306 */ 6307 if ((*user_byte & ~(*change_mask)) == 6308 (*current_byte & ~(*change_mask))) 6309 continue; 6310 6311 /* 6312 * Go through bit by bit to determine which one is illegal. 6313 */ 6314 bad_bit = 0; 6315 for (j = 7; j >= 0; j--) { 6316 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6317 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6318 bad_bit = i; 6319 break; 6320 } 6321 } 6322 ctl_set_invalid_field(ctsio, 6323 /*sks_valid*/ 1, 6324 /*command*/ 0, 6325 /*field*/ *len_used + i, 6326 /*bit_valid*/ 1, 6327 /*bit*/ bad_bit); 6328 free(ctsio->kern_data_ptr, M_CTL); 6329 ctl_done((union ctl_io *)ctsio); 6330 return (CTL_RETVAL_COMPLETE); 6331 } 6332 6333 /* 6334 * Decrement these before we call the page handler, since we may 6335 * end up getting called back one way or another before the handler 6336 * returns to this context. 6337 */ 6338 *len_left -= page_index->page_len; 6339 *len_used += page_index->page_len; 6340 6341 retval = page_index->select_handler(ctsio, page_index, 6342 (uint8_t *)page_header); 6343 6344 /* 6345 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6346 * wait until this queued command completes to finish processing 6347 * the mode page. If it returns anything other than 6348 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6349 * already set the sense information, freed the data pointer, and 6350 * completed the io for us. 6351 */ 6352 if (retval != CTL_RETVAL_COMPLETE) 6353 goto bailout_no_done; 6354 6355 /* 6356 * If the initiator sent us more than one page, parse the next one. 6357 */ 6358 if (*len_left > 0) 6359 goto do_next_page; 6360 6361 ctl_set_success(ctsio); 6362 free(ctsio->kern_data_ptr, M_CTL); 6363 ctl_done((union ctl_io *)ctsio); 6364 6365bailout_no_done: 6366 6367 return (CTL_RETVAL_COMPLETE); 6368 6369} 6370 6371int 6372ctl_mode_select(struct ctl_scsiio *ctsio) 6373{ 6374 int param_len, pf, sp; 6375 int header_size, bd_len; 6376 int len_left, len_used; 6377 struct ctl_page_index *page_index; 6378 struct ctl_lun *lun; 6379 int control_dev, page_len; 6380 union ctl_modepage_info *modepage_info; 6381 int retval; 6382 6383 pf = 0; 6384 sp = 0; 6385 page_len = 0; 6386 len_used = 0; 6387 len_left = 0; 6388 retval = 0; 6389 bd_len = 0; 6390 page_index = NULL; 6391 6392 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6393 6394 if (lun->be_lun->lun_type != T_DIRECT) 6395 control_dev = 1; 6396 else 6397 control_dev = 0; 6398 6399 switch (ctsio->cdb[0]) { 6400 case MODE_SELECT_6: { 6401 struct scsi_mode_select_6 *cdb; 6402 6403 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6404 6405 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6406 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6407 6408 param_len = cdb->length; 6409 header_size = sizeof(struct scsi_mode_header_6); 6410 break; 6411 } 6412 case MODE_SELECT_10: { 6413 struct scsi_mode_select_10 *cdb; 6414 6415 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6416 6417 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6418 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6419 6420 param_len = scsi_2btoul(cdb->length); 6421 header_size = sizeof(struct scsi_mode_header_10); 6422 break; 6423 } 6424 default: 6425 ctl_set_invalid_opcode(ctsio); 6426 ctl_done((union ctl_io *)ctsio); 6427 return (CTL_RETVAL_COMPLETE); 6428 break; /* NOTREACHED */ 6429 } 6430 6431 /* 6432 * From SPC-3: 6433 * "A parameter list length of zero indicates that the Data-Out Buffer 6434 * shall be empty. This condition shall not be considered as an error." 6435 */ 6436 if (param_len == 0) { 6437 ctl_set_success(ctsio); 6438 ctl_done((union ctl_io *)ctsio); 6439 return (CTL_RETVAL_COMPLETE); 6440 } 6441 6442 /* 6443 * Since we'll hit this the first time through, prior to 6444 * allocation, we don't need to free a data buffer here. 6445 */ 6446 if (param_len < header_size) { 6447 ctl_set_param_len_error(ctsio); 6448 ctl_done((union ctl_io *)ctsio); 6449 return (CTL_RETVAL_COMPLETE); 6450 } 6451 6452 /* 6453 * Allocate the data buffer and grab the user's data. In theory, 6454 * we shouldn't have to sanity check the parameter list length here 6455 * because the maximum size is 64K. We should be able to malloc 6456 * that much without too many problems. 6457 */ 6458 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6459 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6460 ctsio->kern_data_len = param_len; 6461 ctsio->kern_total_len = param_len; 6462 ctsio->kern_data_resid = 0; 6463 ctsio->kern_rel_offset = 0; 6464 ctsio->kern_sg_entries = 0; 6465 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6466 ctsio->be_move_done = ctl_config_move_done; 6467 ctl_datamove((union ctl_io *)ctsio); 6468 6469 return (CTL_RETVAL_COMPLETE); 6470 } 6471 6472 switch (ctsio->cdb[0]) { 6473 case MODE_SELECT_6: { 6474 struct scsi_mode_header_6 *mh6; 6475 6476 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6477 bd_len = mh6->blk_desc_len; 6478 break; 6479 } 6480 case MODE_SELECT_10: { 6481 struct scsi_mode_header_10 *mh10; 6482 6483 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6484 bd_len = scsi_2btoul(mh10->blk_desc_len); 6485 break; 6486 } 6487 default: 6488 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6489 break; 6490 } 6491 6492 if (param_len < (header_size + bd_len)) { 6493 free(ctsio->kern_data_ptr, M_CTL); 6494 ctl_set_param_len_error(ctsio); 6495 ctl_done((union ctl_io *)ctsio); 6496 return (CTL_RETVAL_COMPLETE); 6497 } 6498 6499 /* 6500 * Set the IO_CONT flag, so that if this I/O gets passed to 6501 * ctl_config_write_done(), it'll get passed back to 6502 * ctl_do_mode_select() for further processing, or completion if 6503 * we're all done. 6504 */ 6505 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6506 ctsio->io_cont = ctl_do_mode_select; 6507 6508 modepage_info = (union ctl_modepage_info *) 6509 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6510 6511 memset(modepage_info, 0, sizeof(*modepage_info)); 6512 6513 len_left = param_len - header_size - bd_len; 6514 len_used = header_size + bd_len; 6515 6516 modepage_info->header.len_left = len_left; 6517 modepage_info->header.len_used = len_used; 6518 6519 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6520} 6521 6522int 6523ctl_mode_sense(struct ctl_scsiio *ctsio) 6524{ 6525 struct ctl_lun *lun; 6526 int pc, page_code, dbd, llba, subpage; 6527 int alloc_len, page_len, header_len, total_len; 6528 struct scsi_mode_block_descr *block_desc; 6529 struct ctl_page_index *page_index; 6530 int control_dev; 6531 6532 dbd = 0; 6533 llba = 0; 6534 block_desc = NULL; 6535 page_index = NULL; 6536 6537 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6538 6539 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6540 6541 if (lun->be_lun->lun_type != T_DIRECT) 6542 control_dev = 1; 6543 else 6544 control_dev = 0; 6545 6546 switch (ctsio->cdb[0]) { 6547 case MODE_SENSE_6: { 6548 struct scsi_mode_sense_6 *cdb; 6549 6550 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6551 6552 header_len = sizeof(struct scsi_mode_hdr_6); 6553 if (cdb->byte2 & SMS_DBD) 6554 dbd = 1; 6555 else 6556 header_len += sizeof(struct scsi_mode_block_descr); 6557 6558 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6559 page_code = cdb->page & SMS_PAGE_CODE; 6560 subpage = cdb->subpage; 6561 alloc_len = cdb->length; 6562 break; 6563 } 6564 case MODE_SENSE_10: { 6565 struct scsi_mode_sense_10 *cdb; 6566 6567 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6568 6569 header_len = sizeof(struct scsi_mode_hdr_10); 6570 6571 if (cdb->byte2 & SMS_DBD) 6572 dbd = 1; 6573 else 6574 header_len += sizeof(struct scsi_mode_block_descr); 6575 if (cdb->byte2 & SMS10_LLBAA) 6576 llba = 1; 6577 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6578 page_code = cdb->page & SMS_PAGE_CODE; 6579 subpage = cdb->subpage; 6580 alloc_len = scsi_2btoul(cdb->length); 6581 break; 6582 } 6583 default: 6584 ctl_set_invalid_opcode(ctsio); 6585 ctl_done((union ctl_io *)ctsio); 6586 return (CTL_RETVAL_COMPLETE); 6587 break; /* NOTREACHED */ 6588 } 6589 6590 /* 6591 * We have to make a first pass through to calculate the size of 6592 * the pages that match the user's query. Then we allocate enough 6593 * memory to hold it, and actually copy the data into the buffer. 6594 */ 6595 switch (page_code) { 6596 case SMS_ALL_PAGES_PAGE: { 6597 int i; 6598 6599 page_len = 0; 6600 6601 /* 6602 * At the moment, values other than 0 and 0xff here are 6603 * reserved according to SPC-3. 6604 */ 6605 if ((subpage != SMS_SUBPAGE_PAGE_0) 6606 && (subpage != SMS_SUBPAGE_ALL)) { 6607 ctl_set_invalid_field(ctsio, 6608 /*sks_valid*/ 1, 6609 /*command*/ 1, 6610 /*field*/ 3, 6611 /*bit_valid*/ 0, 6612 /*bit*/ 0); 6613 ctl_done((union ctl_io *)ctsio); 6614 return (CTL_RETVAL_COMPLETE); 6615 } 6616 6617 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6618 if ((control_dev != 0) 6619 && (lun->mode_pages.index[i].page_flags & 6620 CTL_PAGE_FLAG_DISK_ONLY)) 6621 continue; 6622 6623 /* 6624 * We don't use this subpage if the user didn't 6625 * request all subpages. 6626 */ 6627 if ((lun->mode_pages.index[i].subpage != 0) 6628 && (subpage == SMS_SUBPAGE_PAGE_0)) 6629 continue; 6630 6631#if 0 6632 printf("found page %#x len %d\n", 6633 lun->mode_pages.index[i].page_code & 6634 SMPH_PC_MASK, 6635 lun->mode_pages.index[i].page_len); 6636#endif 6637 page_len += lun->mode_pages.index[i].page_len; 6638 } 6639 break; 6640 } 6641 default: { 6642 int i; 6643 6644 page_len = 0; 6645 6646 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6647 /* Look for the right page code */ 6648 if ((lun->mode_pages.index[i].page_code & 6649 SMPH_PC_MASK) != page_code) 6650 continue; 6651 6652 /* Look for the right subpage or the subpage wildcard*/ 6653 if ((lun->mode_pages.index[i].subpage != subpage) 6654 && (subpage != SMS_SUBPAGE_ALL)) 6655 continue; 6656 6657 /* Make sure the page is supported for this dev type */ 6658 if ((control_dev != 0) 6659 && (lun->mode_pages.index[i].page_flags & 6660 CTL_PAGE_FLAG_DISK_ONLY)) 6661 continue; 6662 6663#if 0 6664 printf("found page %#x len %d\n", 6665 lun->mode_pages.index[i].page_code & 6666 SMPH_PC_MASK, 6667 lun->mode_pages.index[i].page_len); 6668#endif 6669 6670 page_len += lun->mode_pages.index[i].page_len; 6671 } 6672 6673 if (page_len == 0) { 6674 ctl_set_invalid_field(ctsio, 6675 /*sks_valid*/ 1, 6676 /*command*/ 1, 6677 /*field*/ 2, 6678 /*bit_valid*/ 1, 6679 /*bit*/ 5); 6680 ctl_done((union ctl_io *)ctsio); 6681 return (CTL_RETVAL_COMPLETE); 6682 } 6683 break; 6684 } 6685 } 6686 6687 total_len = header_len + page_len; 6688#if 0 6689 printf("header_len = %d, page_len = %d, total_len = %d\n", 6690 header_len, page_len, total_len); 6691#endif 6692 6693 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6694 ctsio->kern_sg_entries = 0; 6695 ctsio->kern_data_resid = 0; 6696 ctsio->kern_rel_offset = 0; 6697 if (total_len < alloc_len) { 6698 ctsio->residual = alloc_len - total_len; 6699 ctsio->kern_data_len = total_len; 6700 ctsio->kern_total_len = total_len; 6701 } else { 6702 ctsio->residual = 0; 6703 ctsio->kern_data_len = alloc_len; 6704 ctsio->kern_total_len = alloc_len; 6705 } 6706 6707 switch (ctsio->cdb[0]) { 6708 case MODE_SENSE_6: { 6709 struct scsi_mode_hdr_6 *header; 6710 6711 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6712 6713 header->datalen = MIN(total_len - 1, 254); 6714 if (control_dev == 0) { 6715 header->dev_specific = 0x10; /* DPOFUA */ 6716 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6717 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6718 .eca_and_aen & SCP_SWP) != 0) 6719 header->dev_specific |= 0x80; /* WP */ 6720 } 6721 if (dbd) 6722 header->block_descr_len = 0; 6723 else 6724 header->block_descr_len = 6725 sizeof(struct scsi_mode_block_descr); 6726 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6727 break; 6728 } 6729 case MODE_SENSE_10: { 6730 struct scsi_mode_hdr_10 *header; 6731 int datalen; 6732 6733 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6734 6735 datalen = MIN(total_len - 2, 65533); 6736 scsi_ulto2b(datalen, header->datalen); 6737 if (control_dev == 0) { 6738 header->dev_specific = 0x10; /* DPOFUA */ 6739 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6740 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6741 .eca_and_aen & SCP_SWP) != 0) 6742 header->dev_specific |= 0x80; /* WP */ 6743 } 6744 if (dbd) 6745 scsi_ulto2b(0, header->block_descr_len); 6746 else 6747 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6748 header->block_descr_len); 6749 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6750 break; 6751 } 6752 default: 6753 panic("invalid CDB type %#x", ctsio->cdb[0]); 6754 break; /* NOTREACHED */ 6755 } 6756 6757 /* 6758 * If we've got a disk, use its blocksize in the block 6759 * descriptor. Otherwise, just set it to 0. 6760 */ 6761 if (dbd == 0) { 6762 if (control_dev == 0) 6763 scsi_ulto3b(lun->be_lun->blocksize, 6764 block_desc->block_len); 6765 else 6766 scsi_ulto3b(0, block_desc->block_len); 6767 } 6768 6769 switch (page_code) { 6770 case SMS_ALL_PAGES_PAGE: { 6771 int i, data_used; 6772 6773 data_used = header_len; 6774 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6775 struct ctl_page_index *page_index; 6776 6777 page_index = &lun->mode_pages.index[i]; 6778 6779 if ((control_dev != 0) 6780 && (page_index->page_flags & 6781 CTL_PAGE_FLAG_DISK_ONLY)) 6782 continue; 6783 6784 /* 6785 * We don't use this subpage if the user didn't 6786 * request all subpages. We already checked (above) 6787 * to make sure the user only specified a subpage 6788 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6789 */ 6790 if ((page_index->subpage != 0) 6791 && (subpage == SMS_SUBPAGE_PAGE_0)) 6792 continue; 6793 6794 /* 6795 * Call the handler, if it exists, to update the 6796 * page to the latest values. 6797 */ 6798 if (page_index->sense_handler != NULL) 6799 page_index->sense_handler(ctsio, page_index,pc); 6800 6801 memcpy(ctsio->kern_data_ptr + data_used, 6802 page_index->page_data + 6803 (page_index->page_len * pc), 6804 page_index->page_len); 6805 data_used += page_index->page_len; 6806 } 6807 break; 6808 } 6809 default: { 6810 int i, data_used; 6811 6812 data_used = header_len; 6813 6814 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6815 struct ctl_page_index *page_index; 6816 6817 page_index = &lun->mode_pages.index[i]; 6818 6819 /* Look for the right page code */ 6820 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6821 continue; 6822 6823 /* Look for the right subpage or the subpage wildcard*/ 6824 if ((page_index->subpage != subpage) 6825 && (subpage != SMS_SUBPAGE_ALL)) 6826 continue; 6827 6828 /* Make sure the page is supported for this dev type */ 6829 if ((control_dev != 0) 6830 && (page_index->page_flags & 6831 CTL_PAGE_FLAG_DISK_ONLY)) 6832 continue; 6833 6834 /* 6835 * Call the handler, if it exists, to update the 6836 * page to the latest values. 6837 */ 6838 if (page_index->sense_handler != NULL) 6839 page_index->sense_handler(ctsio, page_index,pc); 6840 6841 memcpy(ctsio->kern_data_ptr + data_used, 6842 page_index->page_data + 6843 (page_index->page_len * pc), 6844 page_index->page_len); 6845 data_used += page_index->page_len; 6846 } 6847 break; 6848 } 6849 } 6850 6851 ctl_set_success(ctsio); 6852 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6853 ctsio->be_move_done = ctl_config_move_done; 6854 ctl_datamove((union ctl_io *)ctsio); 6855 return (CTL_RETVAL_COMPLETE); 6856} 6857 6858int 6859ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6860 struct ctl_page_index *page_index, 6861 int pc) 6862{ 6863 struct ctl_lun *lun; 6864 struct scsi_log_param_header *phdr; 6865 uint8_t *data; 6866 uint64_t val; 6867 6868 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6869 data = page_index->page_data; 6870 6871 if (lun->backend->lun_attr != NULL && 6872 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6873 != UINT64_MAX) { 6874 phdr = (struct scsi_log_param_header *)data; 6875 scsi_ulto2b(0x0001, phdr->param_code); 6876 phdr->param_control = SLP_LBIN | SLP_LP; 6877 phdr->param_len = 8; 6878 data = (uint8_t *)(phdr + 1); 6879 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6880 data[4] = 0x02; /* per-pool */ 6881 data += phdr->param_len; 6882 } 6883 6884 if (lun->backend->lun_attr != NULL && 6885 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6886 != UINT64_MAX) { 6887 phdr = (struct scsi_log_param_header *)data; 6888 scsi_ulto2b(0x0002, phdr->param_code); 6889 phdr->param_control = SLP_LBIN | SLP_LP; 6890 phdr->param_len = 8; 6891 data = (uint8_t *)(phdr + 1); 6892 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6893 data[4] = 0x01; /* per-LUN */ 6894 data += phdr->param_len; 6895 } 6896 6897 if (lun->backend->lun_attr != NULL && 6898 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6899 != UINT64_MAX) { 6900 phdr = (struct scsi_log_param_header *)data; 6901 scsi_ulto2b(0x00f1, phdr->param_code); 6902 phdr->param_control = SLP_LBIN | SLP_LP; 6903 phdr->param_len = 8; 6904 data = (uint8_t *)(phdr + 1); 6905 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6906 data[4] = 0x02; /* per-pool */ 6907 data += phdr->param_len; 6908 } 6909 6910 if (lun->backend->lun_attr != NULL && 6911 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6912 != UINT64_MAX) { 6913 phdr = (struct scsi_log_param_header *)data; 6914 scsi_ulto2b(0x00f2, phdr->param_code); 6915 phdr->param_control = SLP_LBIN | SLP_LP; 6916 phdr->param_len = 8; 6917 data = (uint8_t *)(phdr + 1); 6918 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6919 data[4] = 0x02; /* per-pool */ 6920 data += phdr->param_len; 6921 } 6922 6923 page_index->page_len = data - page_index->page_data; 6924 return (0); 6925} 6926 6927int 6928ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6929 struct ctl_page_index *page_index, 6930 int pc) 6931{ 6932 struct ctl_lun *lun; 6933 struct stat_page *data; 6934 uint64_t rn, wn, rb, wb; 6935 struct bintime rt, wt; 6936 int i; 6937 6938 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6939 data = (struct stat_page *)page_index->page_data; 6940 6941 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6942 data->sap.hdr.param_control = SLP_LBIN; 6943 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6944 sizeof(struct scsi_log_param_header); 6945 rn = wn = rb = wb = 0; 6946 bintime_clear(&rt); 6947 bintime_clear(&wt); 6948 for (i = 0; i < CTL_MAX_PORTS; i++) { 6949 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6950 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6951 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6952 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6953 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6954 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6955 } 6956 scsi_u64to8b(rn, data->sap.read_num); 6957 scsi_u64to8b(wn, data->sap.write_num); 6958 if (lun->stats.blocksize > 0) { 6959 scsi_u64to8b(wb / lun->stats.blocksize, 6960 data->sap.recvieved_lba); 6961 scsi_u64to8b(rb / lun->stats.blocksize, 6962 data->sap.transmitted_lba); 6963 } 6964 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6965 data->sap.read_int); 6966 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6967 data->sap.write_int); 6968 scsi_u64to8b(0, data->sap.weighted_num); 6969 scsi_u64to8b(0, data->sap.weighted_int); 6970 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6971 data->it.hdr.param_control = SLP_LBIN; 6972 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6973 sizeof(struct scsi_log_param_header); 6974#ifdef CTL_TIME_IO 6975 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6976#endif 6977 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6978 data->it.hdr.param_control = SLP_LBIN; 6979 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6980 sizeof(struct scsi_log_param_header); 6981 scsi_ulto4b(3, data->ti.exponent); 6982 scsi_ulto4b(1, data->ti.integer); 6983 6984 page_index->page_len = sizeof(*data); 6985 return (0); 6986} 6987 6988int 6989ctl_log_sense(struct ctl_scsiio *ctsio) 6990{ 6991 struct ctl_lun *lun; 6992 int i, pc, page_code, subpage; 6993 int alloc_len, total_len; 6994 struct ctl_page_index *page_index; 6995 struct scsi_log_sense *cdb; 6996 struct scsi_log_header *header; 6997 6998 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6999 7000 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7001 cdb = (struct scsi_log_sense *)ctsio->cdb; 7002 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7003 page_code = cdb->page & SLS_PAGE_CODE; 7004 subpage = cdb->subpage; 7005 alloc_len = scsi_2btoul(cdb->length); 7006 7007 page_index = NULL; 7008 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7009 page_index = &lun->log_pages.index[i]; 7010 7011 /* Look for the right page code */ 7012 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7013 continue; 7014 7015 /* Look for the right subpage or the subpage wildcard*/ 7016 if (page_index->subpage != subpage) 7017 continue; 7018 7019 break; 7020 } 7021 if (i >= CTL_NUM_LOG_PAGES) { 7022 ctl_set_invalid_field(ctsio, 7023 /*sks_valid*/ 1, 7024 /*command*/ 1, 7025 /*field*/ 2, 7026 /*bit_valid*/ 0, 7027 /*bit*/ 0); 7028 ctl_done((union ctl_io *)ctsio); 7029 return (CTL_RETVAL_COMPLETE); 7030 } 7031 7032 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7033 7034 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7035 ctsio->kern_sg_entries = 0; 7036 ctsio->kern_data_resid = 0; 7037 ctsio->kern_rel_offset = 0; 7038 if (total_len < alloc_len) { 7039 ctsio->residual = alloc_len - total_len; 7040 ctsio->kern_data_len = total_len; 7041 ctsio->kern_total_len = total_len; 7042 } else { 7043 ctsio->residual = 0; 7044 ctsio->kern_data_len = alloc_len; 7045 ctsio->kern_total_len = alloc_len; 7046 } 7047 7048 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7049 header->page = page_index->page_code; 7050 if (page_index->subpage) { 7051 header->page |= SL_SPF; 7052 header->subpage = page_index->subpage; 7053 } 7054 scsi_ulto2b(page_index->page_len, header->datalen); 7055 7056 /* 7057 * Call the handler, if it exists, to update the 7058 * page to the latest values. 7059 */ 7060 if (page_index->sense_handler != NULL) 7061 page_index->sense_handler(ctsio, page_index, pc); 7062 7063 memcpy(header + 1, page_index->page_data, page_index->page_len); 7064 7065 ctl_set_success(ctsio); 7066 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7067 ctsio->be_move_done = ctl_config_move_done; 7068 ctl_datamove((union ctl_io *)ctsio); 7069 return (CTL_RETVAL_COMPLETE); 7070} 7071 7072int 7073ctl_read_capacity(struct ctl_scsiio *ctsio) 7074{ 7075 struct scsi_read_capacity *cdb; 7076 struct scsi_read_capacity_data *data; 7077 struct ctl_lun *lun; 7078 uint32_t lba; 7079 7080 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7081 7082 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7083 7084 lba = scsi_4btoul(cdb->addr); 7085 if (((cdb->pmi & SRC_PMI) == 0) 7086 && (lba != 0)) { 7087 ctl_set_invalid_field(/*ctsio*/ ctsio, 7088 /*sks_valid*/ 1, 7089 /*command*/ 1, 7090 /*field*/ 2, 7091 /*bit_valid*/ 0, 7092 /*bit*/ 0); 7093 ctl_done((union ctl_io *)ctsio); 7094 return (CTL_RETVAL_COMPLETE); 7095 } 7096 7097 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7098 7099 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7100 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7101 ctsio->residual = 0; 7102 ctsio->kern_data_len = sizeof(*data); 7103 ctsio->kern_total_len = sizeof(*data); 7104 ctsio->kern_data_resid = 0; 7105 ctsio->kern_rel_offset = 0; 7106 ctsio->kern_sg_entries = 0; 7107 7108 /* 7109 * If the maximum LBA is greater than 0xfffffffe, the user must 7110 * issue a SERVICE ACTION IN (16) command, with the read capacity 7111 * serivce action set. 7112 */ 7113 if (lun->be_lun->maxlba > 0xfffffffe) 7114 scsi_ulto4b(0xffffffff, data->addr); 7115 else 7116 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7117 7118 /* 7119 * XXX KDM this may not be 512 bytes... 7120 */ 7121 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7122 7123 ctl_set_success(ctsio); 7124 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7125 ctsio->be_move_done = ctl_config_move_done; 7126 ctl_datamove((union ctl_io *)ctsio); 7127 return (CTL_RETVAL_COMPLETE); 7128} 7129 7130int 7131ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7132{ 7133 struct scsi_read_capacity_16 *cdb; 7134 struct scsi_read_capacity_data_long *data; 7135 struct ctl_lun *lun; 7136 uint64_t lba; 7137 uint32_t alloc_len; 7138 7139 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7140 7141 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7142 7143 alloc_len = scsi_4btoul(cdb->alloc_len); 7144 lba = scsi_8btou64(cdb->addr); 7145 7146 if ((cdb->reladr & SRC16_PMI) 7147 && (lba != 0)) { 7148 ctl_set_invalid_field(/*ctsio*/ ctsio, 7149 /*sks_valid*/ 1, 7150 /*command*/ 1, 7151 /*field*/ 2, 7152 /*bit_valid*/ 0, 7153 /*bit*/ 0); 7154 ctl_done((union ctl_io *)ctsio); 7155 return (CTL_RETVAL_COMPLETE); 7156 } 7157 7158 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7159 7160 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7161 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7162 7163 if (sizeof(*data) < alloc_len) { 7164 ctsio->residual = alloc_len - sizeof(*data); 7165 ctsio->kern_data_len = sizeof(*data); 7166 ctsio->kern_total_len = sizeof(*data); 7167 } else { 7168 ctsio->residual = 0; 7169 ctsio->kern_data_len = alloc_len; 7170 ctsio->kern_total_len = alloc_len; 7171 } 7172 ctsio->kern_data_resid = 0; 7173 ctsio->kern_rel_offset = 0; 7174 ctsio->kern_sg_entries = 0; 7175 7176 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7177 /* XXX KDM this may not be 512 bytes... */ 7178 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7179 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7180 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7181 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7182 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7183 7184 ctl_set_success(ctsio); 7185 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7186 ctsio->be_move_done = ctl_config_move_done; 7187 ctl_datamove((union ctl_io *)ctsio); 7188 return (CTL_RETVAL_COMPLETE); 7189} 7190 7191int 7192ctl_get_lba_status(struct ctl_scsiio *ctsio) 7193{ 7194 struct scsi_get_lba_status *cdb; 7195 struct scsi_get_lba_status_data *data; 7196 struct ctl_lun *lun; 7197 struct ctl_lba_len_flags *lbalen; 7198 uint64_t lba; 7199 uint32_t alloc_len, total_len; 7200 int retval; 7201 7202 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7203 7204 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7205 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7206 lba = scsi_8btou64(cdb->addr); 7207 alloc_len = scsi_4btoul(cdb->alloc_len); 7208 7209 if (lba > lun->be_lun->maxlba) { 7210 ctl_set_lba_out_of_range(ctsio); 7211 ctl_done((union ctl_io *)ctsio); 7212 return (CTL_RETVAL_COMPLETE); 7213 } 7214 7215 total_len = sizeof(*data) + sizeof(data->descr[0]); 7216 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7217 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7218 7219 if (total_len < alloc_len) { 7220 ctsio->residual = alloc_len - total_len; 7221 ctsio->kern_data_len = total_len; 7222 ctsio->kern_total_len = total_len; 7223 } else { 7224 ctsio->residual = 0; 7225 ctsio->kern_data_len = alloc_len; 7226 ctsio->kern_total_len = alloc_len; 7227 } 7228 ctsio->kern_data_resid = 0; 7229 ctsio->kern_rel_offset = 0; 7230 ctsio->kern_sg_entries = 0; 7231 7232 /* Fill dummy data in case backend can't tell anything. */ 7233 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7234 scsi_u64to8b(lba, data->descr[0].addr); 7235 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7236 data->descr[0].length); 7237 data->descr[0].status = 0; /* Mapped or unknown. */ 7238 7239 ctl_set_success(ctsio); 7240 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7241 ctsio->be_move_done = ctl_config_move_done; 7242 7243 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7244 lbalen->lba = lba; 7245 lbalen->len = total_len; 7246 lbalen->flags = 0; 7247 retval = lun->backend->config_read((union ctl_io *)ctsio); 7248 return (CTL_RETVAL_COMPLETE); 7249} 7250 7251int 7252ctl_read_defect(struct ctl_scsiio *ctsio) 7253{ 7254 struct scsi_read_defect_data_10 *ccb10; 7255 struct scsi_read_defect_data_12 *ccb12; 7256 struct scsi_read_defect_data_hdr_10 *data10; 7257 struct scsi_read_defect_data_hdr_12 *data12; 7258 uint32_t alloc_len, data_len; 7259 uint8_t format; 7260 7261 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7262 7263 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7264 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7265 format = ccb10->format; 7266 alloc_len = scsi_2btoul(ccb10->alloc_length); 7267 data_len = sizeof(*data10); 7268 } else { 7269 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7270 format = ccb12->format; 7271 alloc_len = scsi_4btoul(ccb12->alloc_length); 7272 data_len = sizeof(*data12); 7273 } 7274 if (alloc_len == 0) { 7275 ctl_set_success(ctsio); 7276 ctl_done((union ctl_io *)ctsio); 7277 return (CTL_RETVAL_COMPLETE); 7278 } 7279 7280 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7281 if (data_len < alloc_len) { 7282 ctsio->residual = alloc_len - data_len; 7283 ctsio->kern_data_len = data_len; 7284 ctsio->kern_total_len = data_len; 7285 } else { 7286 ctsio->residual = 0; 7287 ctsio->kern_data_len = alloc_len; 7288 ctsio->kern_total_len = alloc_len; 7289 } 7290 ctsio->kern_data_resid = 0; 7291 ctsio->kern_rel_offset = 0; 7292 ctsio->kern_sg_entries = 0; 7293 7294 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7295 data10 = (struct scsi_read_defect_data_hdr_10 *) 7296 ctsio->kern_data_ptr; 7297 data10->format = format; 7298 scsi_ulto2b(0, data10->length); 7299 } else { 7300 data12 = (struct scsi_read_defect_data_hdr_12 *) 7301 ctsio->kern_data_ptr; 7302 data12->format = format; 7303 scsi_ulto2b(0, data12->generation); 7304 scsi_ulto4b(0, data12->length); 7305 } 7306 7307 ctl_set_success(ctsio); 7308 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7309 ctsio->be_move_done = ctl_config_move_done; 7310 ctl_datamove((union ctl_io *)ctsio); 7311 return (CTL_RETVAL_COMPLETE); 7312} 7313 7314int 7315ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7316{ 7317 struct scsi_maintenance_in *cdb; 7318 int retval; 7319 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7320 int num_target_port_groups, num_target_ports; 7321 struct ctl_lun *lun; 7322 struct ctl_softc *softc; 7323 struct ctl_port *port; 7324 struct scsi_target_group_data *rtg_ptr; 7325 struct scsi_target_group_data_extended *rtg_ext_ptr; 7326 struct scsi_target_port_group_descriptor *tpg_desc; 7327 7328 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7329 7330 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7331 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7332 softc = lun->ctl_softc; 7333 7334 retval = CTL_RETVAL_COMPLETE; 7335 7336 switch (cdb->byte2 & STG_PDF_MASK) { 7337 case STG_PDF_LENGTH: 7338 ext = 0; 7339 break; 7340 case STG_PDF_EXTENDED: 7341 ext = 1; 7342 break; 7343 default: 7344 ctl_set_invalid_field(/*ctsio*/ ctsio, 7345 /*sks_valid*/ 1, 7346 /*command*/ 1, 7347 /*field*/ 2, 7348 /*bit_valid*/ 1, 7349 /*bit*/ 5); 7350 ctl_done((union ctl_io *)ctsio); 7351 return(retval); 7352 } 7353 7354 if (softc->is_single) 7355 num_target_port_groups = 1; 7356 else 7357 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7358 num_target_ports = 0; 7359 mtx_lock(&softc->ctl_lock); 7360 STAILQ_FOREACH(port, &softc->port_list, links) { 7361 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7362 continue; 7363 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7364 continue; 7365 num_target_ports++; 7366 } 7367 mtx_unlock(&softc->ctl_lock); 7368 7369 if (ext) 7370 total_len = sizeof(struct scsi_target_group_data_extended); 7371 else 7372 total_len = sizeof(struct scsi_target_group_data); 7373 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7374 num_target_port_groups + 7375 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7376 7377 alloc_len = scsi_4btoul(cdb->length); 7378 7379 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7380 7381 ctsio->kern_sg_entries = 0; 7382 7383 if (total_len < alloc_len) { 7384 ctsio->residual = alloc_len - total_len; 7385 ctsio->kern_data_len = total_len; 7386 ctsio->kern_total_len = total_len; 7387 } else { 7388 ctsio->residual = 0; 7389 ctsio->kern_data_len = alloc_len; 7390 ctsio->kern_total_len = alloc_len; 7391 } 7392 ctsio->kern_data_resid = 0; 7393 ctsio->kern_rel_offset = 0; 7394 7395 if (ext) { 7396 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7397 ctsio->kern_data_ptr; 7398 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7399 rtg_ext_ptr->format_type = 0x10; 7400 rtg_ext_ptr->implicit_transition_time = 0; 7401 tpg_desc = &rtg_ext_ptr->groups[0]; 7402 } else { 7403 rtg_ptr = (struct scsi_target_group_data *) 7404 ctsio->kern_data_ptr; 7405 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7406 tpg_desc = &rtg_ptr->groups[0]; 7407 } 7408 7409 mtx_lock(&softc->ctl_lock); 7410 pg = softc->port_min / softc->port_cnt; 7411 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7412 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7413 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7414 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7415 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7416 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7417 else 7418 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7419 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7420 os = gs; 7421 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7422 } else 7423 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7424 for (g = 0; g < num_target_port_groups; g++) { 7425 tpg_desc->pref_state = (g == pg) ? gs : os; 7426 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7427 TPG_U_SUP | TPG_T_SUP; 7428 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7429 tpg_desc->status = TPG_IMPLICIT; 7430 pc = 0; 7431 STAILQ_FOREACH(port, &softc->port_list, links) { 7432 if (port->targ_port < g * softc->port_cnt || 7433 port->targ_port >= (g + 1) * softc->port_cnt) 7434 continue; 7435 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7436 continue; 7437 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7438 continue; 7439 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7440 relative_target_port_identifier); 7441 pc++; 7442 } 7443 tpg_desc->target_port_count = pc; 7444 tpg_desc = (struct scsi_target_port_group_descriptor *) 7445 &tpg_desc->descriptors[pc]; 7446 } 7447 mtx_unlock(&softc->ctl_lock); 7448 7449 ctl_set_success(ctsio); 7450 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7451 ctsio->be_move_done = ctl_config_move_done; 7452 ctl_datamove((union ctl_io *)ctsio); 7453 return(retval); 7454} 7455 7456int 7457ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7458{ 7459 struct ctl_lun *lun; 7460 struct scsi_report_supported_opcodes *cdb; 7461 const struct ctl_cmd_entry *entry, *sentry; 7462 struct scsi_report_supported_opcodes_all *all; 7463 struct scsi_report_supported_opcodes_descr *descr; 7464 struct scsi_report_supported_opcodes_one *one; 7465 int retval; 7466 int alloc_len, total_len; 7467 int opcode, service_action, i, j, num; 7468 7469 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7470 7471 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7472 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7473 7474 retval = CTL_RETVAL_COMPLETE; 7475 7476 opcode = cdb->requested_opcode; 7477 service_action = scsi_2btoul(cdb->requested_service_action); 7478 switch (cdb->options & RSO_OPTIONS_MASK) { 7479 case RSO_OPTIONS_ALL: 7480 num = 0; 7481 for (i = 0; i < 256; i++) { 7482 entry = &ctl_cmd_table[i]; 7483 if (entry->flags & CTL_CMD_FLAG_SA5) { 7484 for (j = 0; j < 32; j++) { 7485 sentry = &((const struct ctl_cmd_entry *) 7486 entry->execute)[j]; 7487 if (ctl_cmd_applicable( 7488 lun->be_lun->lun_type, sentry)) 7489 num++; 7490 } 7491 } else { 7492 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7493 entry)) 7494 num++; 7495 } 7496 } 7497 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7498 num * sizeof(struct scsi_report_supported_opcodes_descr); 7499 break; 7500 case RSO_OPTIONS_OC: 7501 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7502 ctl_set_invalid_field(/*ctsio*/ ctsio, 7503 /*sks_valid*/ 1, 7504 /*command*/ 1, 7505 /*field*/ 2, 7506 /*bit_valid*/ 1, 7507 /*bit*/ 2); 7508 ctl_done((union ctl_io *)ctsio); 7509 return (CTL_RETVAL_COMPLETE); 7510 } 7511 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7512 break; 7513 case RSO_OPTIONS_OC_SA: 7514 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7515 service_action >= 32) { 7516 ctl_set_invalid_field(/*ctsio*/ ctsio, 7517 /*sks_valid*/ 1, 7518 /*command*/ 1, 7519 /*field*/ 2, 7520 /*bit_valid*/ 1, 7521 /*bit*/ 2); 7522 ctl_done((union ctl_io *)ctsio); 7523 return (CTL_RETVAL_COMPLETE); 7524 } 7525 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7526 break; 7527 default: 7528 ctl_set_invalid_field(/*ctsio*/ ctsio, 7529 /*sks_valid*/ 1, 7530 /*command*/ 1, 7531 /*field*/ 2, 7532 /*bit_valid*/ 1, 7533 /*bit*/ 2); 7534 ctl_done((union ctl_io *)ctsio); 7535 return (CTL_RETVAL_COMPLETE); 7536 } 7537 7538 alloc_len = scsi_4btoul(cdb->length); 7539 7540 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7541 7542 ctsio->kern_sg_entries = 0; 7543 7544 if (total_len < alloc_len) { 7545 ctsio->residual = alloc_len - total_len; 7546 ctsio->kern_data_len = total_len; 7547 ctsio->kern_total_len = total_len; 7548 } else { 7549 ctsio->residual = 0; 7550 ctsio->kern_data_len = alloc_len; 7551 ctsio->kern_total_len = alloc_len; 7552 } 7553 ctsio->kern_data_resid = 0; 7554 ctsio->kern_rel_offset = 0; 7555 7556 switch (cdb->options & RSO_OPTIONS_MASK) { 7557 case RSO_OPTIONS_ALL: 7558 all = (struct scsi_report_supported_opcodes_all *) 7559 ctsio->kern_data_ptr; 7560 num = 0; 7561 for (i = 0; i < 256; i++) { 7562 entry = &ctl_cmd_table[i]; 7563 if (entry->flags & CTL_CMD_FLAG_SA5) { 7564 for (j = 0; j < 32; j++) { 7565 sentry = &((const struct ctl_cmd_entry *) 7566 entry->execute)[j]; 7567 if (!ctl_cmd_applicable( 7568 lun->be_lun->lun_type, sentry)) 7569 continue; 7570 descr = &all->descr[num++]; 7571 descr->opcode = i; 7572 scsi_ulto2b(j, descr->service_action); 7573 descr->flags = RSO_SERVACTV; 7574 scsi_ulto2b(sentry->length, 7575 descr->cdb_length); 7576 } 7577 } else { 7578 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7579 entry)) 7580 continue; 7581 descr = &all->descr[num++]; 7582 descr->opcode = i; 7583 scsi_ulto2b(0, descr->service_action); 7584 descr->flags = 0; 7585 scsi_ulto2b(entry->length, descr->cdb_length); 7586 } 7587 } 7588 scsi_ulto4b( 7589 num * sizeof(struct scsi_report_supported_opcodes_descr), 7590 all->length); 7591 break; 7592 case RSO_OPTIONS_OC: 7593 one = (struct scsi_report_supported_opcodes_one *) 7594 ctsio->kern_data_ptr; 7595 entry = &ctl_cmd_table[opcode]; 7596 goto fill_one; 7597 case RSO_OPTIONS_OC_SA: 7598 one = (struct scsi_report_supported_opcodes_one *) 7599 ctsio->kern_data_ptr; 7600 entry = &ctl_cmd_table[opcode]; 7601 entry = &((const struct ctl_cmd_entry *) 7602 entry->execute)[service_action]; 7603fill_one: 7604 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7605 one->support = 3; 7606 scsi_ulto2b(entry->length, one->cdb_length); 7607 one->cdb_usage[0] = opcode; 7608 memcpy(&one->cdb_usage[1], entry->usage, 7609 entry->length - 1); 7610 } else 7611 one->support = 1; 7612 break; 7613 } 7614 7615 ctl_set_success(ctsio); 7616 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7617 ctsio->be_move_done = ctl_config_move_done; 7618 ctl_datamove((union ctl_io *)ctsio); 7619 return(retval); 7620} 7621 7622int 7623ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7624{ 7625 struct scsi_report_supported_tmf *cdb; 7626 struct scsi_report_supported_tmf_data *data; 7627 int retval; 7628 int alloc_len, total_len; 7629 7630 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7631 7632 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7633 7634 retval = CTL_RETVAL_COMPLETE; 7635 7636 total_len = sizeof(struct scsi_report_supported_tmf_data); 7637 alloc_len = scsi_4btoul(cdb->length); 7638 7639 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7640 7641 ctsio->kern_sg_entries = 0; 7642 7643 if (total_len < alloc_len) { 7644 ctsio->residual = alloc_len - total_len; 7645 ctsio->kern_data_len = total_len; 7646 ctsio->kern_total_len = total_len; 7647 } else { 7648 ctsio->residual = 0; 7649 ctsio->kern_data_len = alloc_len; 7650 ctsio->kern_total_len = alloc_len; 7651 } 7652 ctsio->kern_data_resid = 0; 7653 ctsio->kern_rel_offset = 0; 7654 7655 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7656 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7657 RST_TRS; 7658 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7659 7660 ctl_set_success(ctsio); 7661 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7662 ctsio->be_move_done = ctl_config_move_done; 7663 ctl_datamove((union ctl_io *)ctsio); 7664 return (retval); 7665} 7666 7667int 7668ctl_report_timestamp(struct ctl_scsiio *ctsio) 7669{ 7670 struct scsi_report_timestamp *cdb; 7671 struct scsi_report_timestamp_data *data; 7672 struct timeval tv; 7673 int64_t timestamp; 7674 int retval; 7675 int alloc_len, total_len; 7676 7677 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7678 7679 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7680 7681 retval = CTL_RETVAL_COMPLETE; 7682 7683 total_len = sizeof(struct scsi_report_timestamp_data); 7684 alloc_len = scsi_4btoul(cdb->length); 7685 7686 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7687 7688 ctsio->kern_sg_entries = 0; 7689 7690 if (total_len < alloc_len) { 7691 ctsio->residual = alloc_len - total_len; 7692 ctsio->kern_data_len = total_len; 7693 ctsio->kern_total_len = total_len; 7694 } else { 7695 ctsio->residual = 0; 7696 ctsio->kern_data_len = alloc_len; 7697 ctsio->kern_total_len = alloc_len; 7698 } 7699 ctsio->kern_data_resid = 0; 7700 ctsio->kern_rel_offset = 0; 7701 7702 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7703 scsi_ulto2b(sizeof(*data) - 2, data->length); 7704 data->origin = RTS_ORIG_OUTSIDE; 7705 getmicrotime(&tv); 7706 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7707 scsi_ulto4b(timestamp >> 16, data->timestamp); 7708 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7709 7710 ctl_set_success(ctsio); 7711 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7712 ctsio->be_move_done = ctl_config_move_done; 7713 ctl_datamove((union ctl_io *)ctsio); 7714 return (retval); 7715} 7716 7717int 7718ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7719{ 7720 struct scsi_per_res_in *cdb; 7721 int alloc_len, total_len = 0; 7722 /* struct scsi_per_res_in_rsrv in_data; */ 7723 struct ctl_lun *lun; 7724 struct ctl_softc *softc; 7725 uint64_t key; 7726 7727 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7728 7729 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7730 7731 alloc_len = scsi_2btoul(cdb->length); 7732 7733 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7734 softc = lun->ctl_softc; 7735 7736retry: 7737 mtx_lock(&lun->lun_lock); 7738 switch (cdb->action) { 7739 case SPRI_RK: /* read keys */ 7740 total_len = sizeof(struct scsi_per_res_in_keys) + 7741 lun->pr_key_count * 7742 sizeof(struct scsi_per_res_key); 7743 break; 7744 case SPRI_RR: /* read reservation */ 7745 if (lun->flags & CTL_LUN_PR_RESERVED) 7746 total_len = sizeof(struct scsi_per_res_in_rsrv); 7747 else 7748 total_len = sizeof(struct scsi_per_res_in_header); 7749 break; 7750 case SPRI_RC: /* report capabilities */ 7751 total_len = sizeof(struct scsi_per_res_cap); 7752 break; 7753 case SPRI_RS: /* read full status */ 7754 total_len = sizeof(struct scsi_per_res_in_header) + 7755 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7756 lun->pr_key_count; 7757 break; 7758 default: 7759 panic("Invalid PR type %x", cdb->action); 7760 } 7761 mtx_unlock(&lun->lun_lock); 7762 7763 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7764 7765 if (total_len < alloc_len) { 7766 ctsio->residual = alloc_len - total_len; 7767 ctsio->kern_data_len = total_len; 7768 ctsio->kern_total_len = total_len; 7769 } else { 7770 ctsio->residual = 0; 7771 ctsio->kern_data_len = alloc_len; 7772 ctsio->kern_total_len = alloc_len; 7773 } 7774 7775 ctsio->kern_data_resid = 0; 7776 ctsio->kern_rel_offset = 0; 7777 ctsio->kern_sg_entries = 0; 7778 7779 mtx_lock(&lun->lun_lock); 7780 switch (cdb->action) { 7781 case SPRI_RK: { // read keys 7782 struct scsi_per_res_in_keys *res_keys; 7783 int i, key_count; 7784 7785 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7786 7787 /* 7788 * We had to drop the lock to allocate our buffer, which 7789 * leaves time for someone to come in with another 7790 * persistent reservation. (That is unlikely, though, 7791 * since this should be the only persistent reservation 7792 * command active right now.) 7793 */ 7794 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7795 (lun->pr_key_count * 7796 sizeof(struct scsi_per_res_key)))){ 7797 mtx_unlock(&lun->lun_lock); 7798 free(ctsio->kern_data_ptr, M_CTL); 7799 printf("%s: reservation length changed, retrying\n", 7800 __func__); 7801 goto retry; 7802 } 7803 7804 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7805 7806 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7807 lun->pr_key_count, res_keys->header.length); 7808 7809 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7810 if ((key = ctl_get_prkey(lun, i)) == 0) 7811 continue; 7812 7813 /* 7814 * We used lun->pr_key_count to calculate the 7815 * size to allocate. If it turns out the number of 7816 * initiators with the registered flag set is 7817 * larger than that (i.e. they haven't been kept in 7818 * sync), we've got a problem. 7819 */ 7820 if (key_count >= lun->pr_key_count) { 7821#ifdef NEEDTOPORT 7822 csevent_log(CSC_CTL | CSC_SHELF_SW | 7823 CTL_PR_ERROR, 7824 csevent_LogType_Fault, 7825 csevent_AlertLevel_Yellow, 7826 csevent_FRU_ShelfController, 7827 csevent_FRU_Firmware, 7828 csevent_FRU_Unknown, 7829 "registered keys %d >= key " 7830 "count %d", key_count, 7831 lun->pr_key_count); 7832#endif 7833 key_count++; 7834 continue; 7835 } 7836 scsi_u64to8b(key, res_keys->keys[key_count].key); 7837 key_count++; 7838 } 7839 break; 7840 } 7841 case SPRI_RR: { // read reservation 7842 struct scsi_per_res_in_rsrv *res; 7843 int tmp_len, header_only; 7844 7845 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7846 7847 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7848 7849 if (lun->flags & CTL_LUN_PR_RESERVED) 7850 { 7851 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7852 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7853 res->header.length); 7854 header_only = 0; 7855 } else { 7856 tmp_len = sizeof(struct scsi_per_res_in_header); 7857 scsi_ulto4b(0, res->header.length); 7858 header_only = 1; 7859 } 7860 7861 /* 7862 * We had to drop the lock to allocate our buffer, which 7863 * leaves time for someone to come in with another 7864 * persistent reservation. (That is unlikely, though, 7865 * since this should be the only persistent reservation 7866 * command active right now.) 7867 */ 7868 if (tmp_len != total_len) { 7869 mtx_unlock(&lun->lun_lock); 7870 free(ctsio->kern_data_ptr, M_CTL); 7871 printf("%s: reservation status changed, retrying\n", 7872 __func__); 7873 goto retry; 7874 } 7875 7876 /* 7877 * No reservation held, so we're done. 7878 */ 7879 if (header_only != 0) 7880 break; 7881 7882 /* 7883 * If the registration is an All Registrants type, the key 7884 * is 0, since it doesn't really matter. 7885 */ 7886 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7887 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7888 res->data.reservation); 7889 } 7890 res->data.scopetype = lun->res_type; 7891 break; 7892 } 7893 case SPRI_RC: //report capabilities 7894 { 7895 struct scsi_per_res_cap *res_cap; 7896 uint16_t type_mask; 7897 7898 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7899 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7900 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7901 type_mask = SPRI_TM_WR_EX_AR | 7902 SPRI_TM_EX_AC_RO | 7903 SPRI_TM_WR_EX_RO | 7904 SPRI_TM_EX_AC | 7905 SPRI_TM_WR_EX | 7906 SPRI_TM_EX_AC_AR; 7907 scsi_ulto2b(type_mask, res_cap->type_mask); 7908 break; 7909 } 7910 case SPRI_RS: { // read full status 7911 struct scsi_per_res_in_full *res_status; 7912 struct scsi_per_res_in_full_desc *res_desc; 7913 struct ctl_port *port; 7914 int i, len; 7915 7916 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7917 7918 /* 7919 * We had to drop the lock to allocate our buffer, which 7920 * leaves time for someone to come in with another 7921 * persistent reservation. (That is unlikely, though, 7922 * since this should be the only persistent reservation 7923 * command active right now.) 7924 */ 7925 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7926 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7927 lun->pr_key_count)){ 7928 mtx_unlock(&lun->lun_lock); 7929 free(ctsio->kern_data_ptr, M_CTL); 7930 printf("%s: reservation length changed, retrying\n", 7931 __func__); 7932 goto retry; 7933 } 7934 7935 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7936 7937 res_desc = &res_status->desc[0]; 7938 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7939 if ((key = ctl_get_prkey(lun, i)) == 0) 7940 continue; 7941 7942 scsi_u64to8b(key, res_desc->res_key.key); 7943 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7944 (lun->pr_res_idx == i || 7945 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7946 res_desc->flags = SPRI_FULL_R_HOLDER; 7947 res_desc->scopetype = lun->res_type; 7948 } 7949 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7950 res_desc->rel_trgt_port_id); 7951 len = 0; 7952 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7953 if (port != NULL) 7954 len = ctl_create_iid(port, 7955 i % CTL_MAX_INIT_PER_PORT, 7956 res_desc->transport_id); 7957 scsi_ulto4b(len, res_desc->additional_length); 7958 res_desc = (struct scsi_per_res_in_full_desc *) 7959 &res_desc->transport_id[len]; 7960 } 7961 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7962 res_status->header.length); 7963 break; 7964 } 7965 default: 7966 /* 7967 * This is a bug, because we just checked for this above, 7968 * and should have returned an error. 7969 */ 7970 panic("Invalid PR type %x", cdb->action); 7971 break; /* NOTREACHED */ 7972 } 7973 mtx_unlock(&lun->lun_lock); 7974 7975 ctl_set_success(ctsio); 7976 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7977 ctsio->be_move_done = ctl_config_move_done; 7978 ctl_datamove((union ctl_io *)ctsio); 7979 return (CTL_RETVAL_COMPLETE); 7980} 7981 7982/* 7983 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7984 * it should return. 7985 */ 7986static int 7987ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7988 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7989 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7990 struct scsi_per_res_out_parms* param) 7991{ 7992 union ctl_ha_msg persis_io; 7993 int i; 7994 7995 mtx_lock(&lun->lun_lock); 7996 if (sa_res_key == 0) { 7997 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7998 /* validate scope and type */ 7999 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8000 SPR_LU_SCOPE) { 8001 mtx_unlock(&lun->lun_lock); 8002 ctl_set_invalid_field(/*ctsio*/ ctsio, 8003 /*sks_valid*/ 1, 8004 /*command*/ 1, 8005 /*field*/ 2, 8006 /*bit_valid*/ 1, 8007 /*bit*/ 4); 8008 ctl_done((union ctl_io *)ctsio); 8009 return (1); 8010 } 8011 8012 if (type>8 || type==2 || type==4 || type==0) { 8013 mtx_unlock(&lun->lun_lock); 8014 ctl_set_invalid_field(/*ctsio*/ ctsio, 8015 /*sks_valid*/ 1, 8016 /*command*/ 1, 8017 /*field*/ 2, 8018 /*bit_valid*/ 1, 8019 /*bit*/ 0); 8020 ctl_done((union ctl_io *)ctsio); 8021 return (1); 8022 } 8023 8024 /* 8025 * Unregister everybody else and build UA for 8026 * them 8027 */ 8028 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8029 if (i == residx || ctl_get_prkey(lun, i) == 0) 8030 continue; 8031 8032 ctl_clr_prkey(lun, i); 8033 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8034 } 8035 lun->pr_key_count = 1; 8036 lun->res_type = type; 8037 if (lun->res_type != SPR_TYPE_WR_EX_AR 8038 && lun->res_type != SPR_TYPE_EX_AC_AR) 8039 lun->pr_res_idx = residx; 8040 lun->PRGeneration++; 8041 mtx_unlock(&lun->lun_lock); 8042 8043 /* send msg to other side */ 8044 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8045 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8046 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8047 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8048 persis_io.pr.pr_info.res_type = type; 8049 memcpy(persis_io.pr.pr_info.sa_res_key, 8050 param->serv_act_res_key, 8051 sizeof(param->serv_act_res_key)); 8052 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8053 sizeof(persis_io.pr), M_WAITOK); 8054 } else { 8055 /* not all registrants */ 8056 mtx_unlock(&lun->lun_lock); 8057 free(ctsio->kern_data_ptr, M_CTL); 8058 ctl_set_invalid_field(ctsio, 8059 /*sks_valid*/ 1, 8060 /*command*/ 0, 8061 /*field*/ 8, 8062 /*bit_valid*/ 0, 8063 /*bit*/ 0); 8064 ctl_done((union ctl_io *)ctsio); 8065 return (1); 8066 } 8067 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8068 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8069 int found = 0; 8070 8071 if (res_key == sa_res_key) { 8072 /* special case */ 8073 /* 8074 * The spec implies this is not good but doesn't 8075 * say what to do. There are two choices either 8076 * generate a res conflict or check condition 8077 * with illegal field in parameter data. Since 8078 * that is what is done when the sa_res_key is 8079 * zero I'll take that approach since this has 8080 * to do with the sa_res_key. 8081 */ 8082 mtx_unlock(&lun->lun_lock); 8083 free(ctsio->kern_data_ptr, M_CTL); 8084 ctl_set_invalid_field(ctsio, 8085 /*sks_valid*/ 1, 8086 /*command*/ 0, 8087 /*field*/ 8, 8088 /*bit_valid*/ 0, 8089 /*bit*/ 0); 8090 ctl_done((union ctl_io *)ctsio); 8091 return (1); 8092 } 8093 8094 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8095 if (ctl_get_prkey(lun, i) != sa_res_key) 8096 continue; 8097 8098 found = 1; 8099 ctl_clr_prkey(lun, i); 8100 lun->pr_key_count--; 8101 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8102 } 8103 if (!found) { 8104 mtx_unlock(&lun->lun_lock); 8105 free(ctsio->kern_data_ptr, M_CTL); 8106 ctl_set_reservation_conflict(ctsio); 8107 ctl_done((union ctl_io *)ctsio); 8108 return (CTL_RETVAL_COMPLETE); 8109 } 8110 lun->PRGeneration++; 8111 mtx_unlock(&lun->lun_lock); 8112 8113 /* send msg to other side */ 8114 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8115 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8116 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8117 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8118 persis_io.pr.pr_info.res_type = type; 8119 memcpy(persis_io.pr.pr_info.sa_res_key, 8120 param->serv_act_res_key, 8121 sizeof(param->serv_act_res_key)); 8122 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8123 sizeof(persis_io.pr), M_WAITOK); 8124 } else { 8125 /* Reserved but not all registrants */ 8126 /* sa_res_key is res holder */ 8127 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8128 /* validate scope and type */ 8129 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8130 SPR_LU_SCOPE) { 8131 mtx_unlock(&lun->lun_lock); 8132 ctl_set_invalid_field(/*ctsio*/ ctsio, 8133 /*sks_valid*/ 1, 8134 /*command*/ 1, 8135 /*field*/ 2, 8136 /*bit_valid*/ 1, 8137 /*bit*/ 4); 8138 ctl_done((union ctl_io *)ctsio); 8139 return (1); 8140 } 8141 8142 if (type>8 || type==2 || type==4 || type==0) { 8143 mtx_unlock(&lun->lun_lock); 8144 ctl_set_invalid_field(/*ctsio*/ ctsio, 8145 /*sks_valid*/ 1, 8146 /*command*/ 1, 8147 /*field*/ 2, 8148 /*bit_valid*/ 1, 8149 /*bit*/ 0); 8150 ctl_done((union ctl_io *)ctsio); 8151 return (1); 8152 } 8153 8154 /* 8155 * Do the following: 8156 * if sa_res_key != res_key remove all 8157 * registrants w/sa_res_key and generate UA 8158 * for these registrants(Registrations 8159 * Preempted) if it wasn't an exclusive 8160 * reservation generate UA(Reservations 8161 * Preempted) for all other registered nexuses 8162 * if the type has changed. Establish the new 8163 * reservation and holder. If res_key and 8164 * sa_res_key are the same do the above 8165 * except don't unregister the res holder. 8166 */ 8167 8168 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8169 if (i == residx || ctl_get_prkey(lun, i) == 0) 8170 continue; 8171 8172 if (sa_res_key == ctl_get_prkey(lun, i)) { 8173 ctl_clr_prkey(lun, i); 8174 lun->pr_key_count--; 8175 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8176 } else if (type != lun->res_type 8177 && (lun->res_type == SPR_TYPE_WR_EX_RO 8178 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8179 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8180 } 8181 } 8182 lun->res_type = type; 8183 if (lun->res_type != SPR_TYPE_WR_EX_AR 8184 && lun->res_type != SPR_TYPE_EX_AC_AR) 8185 lun->pr_res_idx = residx; 8186 else 8187 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8188 lun->PRGeneration++; 8189 mtx_unlock(&lun->lun_lock); 8190 8191 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8192 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8193 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8194 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8195 persis_io.pr.pr_info.res_type = type; 8196 memcpy(persis_io.pr.pr_info.sa_res_key, 8197 param->serv_act_res_key, 8198 sizeof(param->serv_act_res_key)); 8199 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8200 sizeof(persis_io.pr), M_WAITOK); 8201 } else { 8202 /* 8203 * sa_res_key is not the res holder just 8204 * remove registrants 8205 */ 8206 int found=0; 8207 8208 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8209 if (sa_res_key != ctl_get_prkey(lun, i)) 8210 continue; 8211 8212 found = 1; 8213 ctl_clr_prkey(lun, i); 8214 lun->pr_key_count--; 8215 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8216 } 8217 8218 if (!found) { 8219 mtx_unlock(&lun->lun_lock); 8220 free(ctsio->kern_data_ptr, M_CTL); 8221 ctl_set_reservation_conflict(ctsio); 8222 ctl_done((union ctl_io *)ctsio); 8223 return (1); 8224 } 8225 lun->PRGeneration++; 8226 mtx_unlock(&lun->lun_lock); 8227 8228 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8229 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8230 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8231 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8232 persis_io.pr.pr_info.res_type = type; 8233 memcpy(persis_io.pr.pr_info.sa_res_key, 8234 param->serv_act_res_key, 8235 sizeof(param->serv_act_res_key)); 8236 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8237 sizeof(persis_io.pr), M_WAITOK); 8238 } 8239 } 8240 return (0); 8241} 8242 8243static void 8244ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8245{ 8246 uint64_t sa_res_key; 8247 int i; 8248 8249 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8250 8251 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8252 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8253 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8254 if (sa_res_key == 0) { 8255 /* 8256 * Unregister everybody else and build UA for 8257 * them 8258 */ 8259 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8260 if (i == msg->pr.pr_info.residx || 8261 ctl_get_prkey(lun, i) == 0) 8262 continue; 8263 8264 ctl_clr_prkey(lun, i); 8265 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8266 } 8267 8268 lun->pr_key_count = 1; 8269 lun->res_type = msg->pr.pr_info.res_type; 8270 if (lun->res_type != SPR_TYPE_WR_EX_AR 8271 && lun->res_type != SPR_TYPE_EX_AC_AR) 8272 lun->pr_res_idx = msg->pr.pr_info.residx; 8273 } else { 8274 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8275 if (sa_res_key == ctl_get_prkey(lun, i)) 8276 continue; 8277 8278 ctl_clr_prkey(lun, i); 8279 lun->pr_key_count--; 8280 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8281 } 8282 } 8283 } else { 8284 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8285 if (i == msg->pr.pr_info.residx || 8286 ctl_get_prkey(lun, i) == 0) 8287 continue; 8288 8289 if (sa_res_key == ctl_get_prkey(lun, i)) { 8290 ctl_clr_prkey(lun, i); 8291 lun->pr_key_count--; 8292 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8293 } else if (msg->pr.pr_info.res_type != lun->res_type 8294 && (lun->res_type == SPR_TYPE_WR_EX_RO 8295 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8296 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8297 } 8298 } 8299 lun->res_type = msg->pr.pr_info.res_type; 8300 if (lun->res_type != SPR_TYPE_WR_EX_AR 8301 && lun->res_type != SPR_TYPE_EX_AC_AR) 8302 lun->pr_res_idx = msg->pr.pr_info.residx; 8303 else 8304 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8305 } 8306 lun->PRGeneration++; 8307 8308} 8309 8310 8311int 8312ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8313{ 8314 int retval; 8315 u_int32_t param_len; 8316 struct scsi_per_res_out *cdb; 8317 struct ctl_lun *lun; 8318 struct scsi_per_res_out_parms* param; 8319 struct ctl_softc *softc; 8320 uint32_t residx; 8321 uint64_t res_key, sa_res_key, key; 8322 uint8_t type; 8323 union ctl_ha_msg persis_io; 8324 int i; 8325 8326 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8327 8328 retval = CTL_RETVAL_COMPLETE; 8329 8330 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8331 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8332 softc = lun->ctl_softc; 8333 8334 /* 8335 * We only support whole-LUN scope. The scope & type are ignored for 8336 * register, register and ignore existing key and clear. 8337 * We sometimes ignore scope and type on preempts too!! 8338 * Verify reservation type here as well. 8339 */ 8340 type = cdb->scope_type & SPR_TYPE_MASK; 8341 if ((cdb->action == SPRO_RESERVE) 8342 || (cdb->action == SPRO_RELEASE)) { 8343 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8344 ctl_set_invalid_field(/*ctsio*/ ctsio, 8345 /*sks_valid*/ 1, 8346 /*command*/ 1, 8347 /*field*/ 2, 8348 /*bit_valid*/ 1, 8349 /*bit*/ 4); 8350 ctl_done((union ctl_io *)ctsio); 8351 return (CTL_RETVAL_COMPLETE); 8352 } 8353 8354 if (type>8 || type==2 || type==4 || type==0) { 8355 ctl_set_invalid_field(/*ctsio*/ ctsio, 8356 /*sks_valid*/ 1, 8357 /*command*/ 1, 8358 /*field*/ 2, 8359 /*bit_valid*/ 1, 8360 /*bit*/ 0); 8361 ctl_done((union ctl_io *)ctsio); 8362 return (CTL_RETVAL_COMPLETE); 8363 } 8364 } 8365 8366 param_len = scsi_4btoul(cdb->length); 8367 8368 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8369 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8370 ctsio->kern_data_len = param_len; 8371 ctsio->kern_total_len = param_len; 8372 ctsio->kern_data_resid = 0; 8373 ctsio->kern_rel_offset = 0; 8374 ctsio->kern_sg_entries = 0; 8375 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8376 ctsio->be_move_done = ctl_config_move_done; 8377 ctl_datamove((union ctl_io *)ctsio); 8378 8379 return (CTL_RETVAL_COMPLETE); 8380 } 8381 8382 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8383 8384 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8385 res_key = scsi_8btou64(param->res_key.key); 8386 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8387 8388 /* 8389 * Validate the reservation key here except for SPRO_REG_IGNO 8390 * This must be done for all other service actions 8391 */ 8392 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8393 mtx_lock(&lun->lun_lock); 8394 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8395 if (res_key != key) { 8396 /* 8397 * The current key passed in doesn't match 8398 * the one the initiator previously 8399 * registered. 8400 */ 8401 mtx_unlock(&lun->lun_lock); 8402 free(ctsio->kern_data_ptr, M_CTL); 8403 ctl_set_reservation_conflict(ctsio); 8404 ctl_done((union ctl_io *)ctsio); 8405 return (CTL_RETVAL_COMPLETE); 8406 } 8407 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8408 /* 8409 * We are not registered 8410 */ 8411 mtx_unlock(&lun->lun_lock); 8412 free(ctsio->kern_data_ptr, M_CTL); 8413 ctl_set_reservation_conflict(ctsio); 8414 ctl_done((union ctl_io *)ctsio); 8415 return (CTL_RETVAL_COMPLETE); 8416 } else if (res_key != 0) { 8417 /* 8418 * We are not registered and trying to register but 8419 * the register key isn't zero. 8420 */ 8421 mtx_unlock(&lun->lun_lock); 8422 free(ctsio->kern_data_ptr, M_CTL); 8423 ctl_set_reservation_conflict(ctsio); 8424 ctl_done((union ctl_io *)ctsio); 8425 return (CTL_RETVAL_COMPLETE); 8426 } 8427 mtx_unlock(&lun->lun_lock); 8428 } 8429 8430 switch (cdb->action & SPRO_ACTION_MASK) { 8431 case SPRO_REGISTER: 8432 case SPRO_REG_IGNO: { 8433 8434#if 0 8435 printf("Registration received\n"); 8436#endif 8437 8438 /* 8439 * We don't support any of these options, as we report in 8440 * the read capabilities request (see 8441 * ctl_persistent_reserve_in(), above). 8442 */ 8443 if ((param->flags & SPR_SPEC_I_PT) 8444 || (param->flags & SPR_ALL_TG_PT) 8445 || (param->flags & SPR_APTPL)) { 8446 int bit_ptr; 8447 8448 if (param->flags & SPR_APTPL) 8449 bit_ptr = 0; 8450 else if (param->flags & SPR_ALL_TG_PT) 8451 bit_ptr = 2; 8452 else /* SPR_SPEC_I_PT */ 8453 bit_ptr = 3; 8454 8455 free(ctsio->kern_data_ptr, M_CTL); 8456 ctl_set_invalid_field(ctsio, 8457 /*sks_valid*/ 1, 8458 /*command*/ 0, 8459 /*field*/ 20, 8460 /*bit_valid*/ 1, 8461 /*bit*/ bit_ptr); 8462 ctl_done((union ctl_io *)ctsio); 8463 return (CTL_RETVAL_COMPLETE); 8464 } 8465 8466 mtx_lock(&lun->lun_lock); 8467 8468 /* 8469 * The initiator wants to clear the 8470 * key/unregister. 8471 */ 8472 if (sa_res_key == 0) { 8473 if ((res_key == 0 8474 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8475 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8476 && ctl_get_prkey(lun, residx) == 0)) { 8477 mtx_unlock(&lun->lun_lock); 8478 goto done; 8479 } 8480 8481 ctl_clr_prkey(lun, residx); 8482 lun->pr_key_count--; 8483 8484 if (residx == lun->pr_res_idx) { 8485 lun->flags &= ~CTL_LUN_PR_RESERVED; 8486 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8487 8488 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8489 || lun->res_type == SPR_TYPE_EX_AC_RO) 8490 && lun->pr_key_count) { 8491 /* 8492 * If the reservation is a registrants 8493 * only type we need to generate a UA 8494 * for other registered inits. The 8495 * sense code should be RESERVATIONS 8496 * RELEASED 8497 */ 8498 8499 for (i = softc->init_min; i < softc->init_max; i++){ 8500 if (ctl_get_prkey(lun, i) == 0) 8501 continue; 8502 ctl_est_ua(lun, i, 8503 CTL_UA_RES_RELEASE); 8504 } 8505 } 8506 lun->res_type = 0; 8507 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8508 if (lun->pr_key_count==0) { 8509 lun->flags &= ~CTL_LUN_PR_RESERVED; 8510 lun->res_type = 0; 8511 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8512 } 8513 } 8514 lun->PRGeneration++; 8515 mtx_unlock(&lun->lun_lock); 8516 8517 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8518 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8519 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8520 persis_io.pr.pr_info.residx = residx; 8521 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8522 sizeof(persis_io.pr), M_WAITOK); 8523 } else /* sa_res_key != 0 */ { 8524 8525 /* 8526 * If we aren't registered currently then increment 8527 * the key count and set the registered flag. 8528 */ 8529 ctl_alloc_prkey(lun, residx); 8530 if (ctl_get_prkey(lun, residx) == 0) 8531 lun->pr_key_count++; 8532 ctl_set_prkey(lun, residx, sa_res_key); 8533 lun->PRGeneration++; 8534 mtx_unlock(&lun->lun_lock); 8535 8536 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8537 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8538 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8539 persis_io.pr.pr_info.residx = residx; 8540 memcpy(persis_io.pr.pr_info.sa_res_key, 8541 param->serv_act_res_key, 8542 sizeof(param->serv_act_res_key)); 8543 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8544 sizeof(persis_io.pr), M_WAITOK); 8545 } 8546 8547 break; 8548 } 8549 case SPRO_RESERVE: 8550#if 0 8551 printf("Reserve executed type %d\n", type); 8552#endif 8553 mtx_lock(&lun->lun_lock); 8554 if (lun->flags & CTL_LUN_PR_RESERVED) { 8555 /* 8556 * if this isn't the reservation holder and it's 8557 * not a "all registrants" type or if the type is 8558 * different then we have a conflict 8559 */ 8560 if ((lun->pr_res_idx != residx 8561 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8562 || lun->res_type != type) { 8563 mtx_unlock(&lun->lun_lock); 8564 free(ctsio->kern_data_ptr, M_CTL); 8565 ctl_set_reservation_conflict(ctsio); 8566 ctl_done((union ctl_io *)ctsio); 8567 return (CTL_RETVAL_COMPLETE); 8568 } 8569 mtx_unlock(&lun->lun_lock); 8570 } else /* create a reservation */ { 8571 /* 8572 * If it's not an "all registrants" type record 8573 * reservation holder 8574 */ 8575 if (type != SPR_TYPE_WR_EX_AR 8576 && type != SPR_TYPE_EX_AC_AR) 8577 lun->pr_res_idx = residx; /* Res holder */ 8578 else 8579 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8580 8581 lun->flags |= CTL_LUN_PR_RESERVED; 8582 lun->res_type = type; 8583 8584 mtx_unlock(&lun->lun_lock); 8585 8586 /* send msg to other side */ 8587 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8588 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8589 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8590 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8591 persis_io.pr.pr_info.res_type = type; 8592 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8593 sizeof(persis_io.pr), M_WAITOK); 8594 } 8595 break; 8596 8597 case SPRO_RELEASE: 8598 mtx_lock(&lun->lun_lock); 8599 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8600 /* No reservation exists return good status */ 8601 mtx_unlock(&lun->lun_lock); 8602 goto done; 8603 } 8604 /* 8605 * Is this nexus a reservation holder? 8606 */ 8607 if (lun->pr_res_idx != residx 8608 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8609 /* 8610 * not a res holder return good status but 8611 * do nothing 8612 */ 8613 mtx_unlock(&lun->lun_lock); 8614 goto done; 8615 } 8616 8617 if (lun->res_type != type) { 8618 mtx_unlock(&lun->lun_lock); 8619 free(ctsio->kern_data_ptr, M_CTL); 8620 ctl_set_illegal_pr_release(ctsio); 8621 ctl_done((union ctl_io *)ctsio); 8622 return (CTL_RETVAL_COMPLETE); 8623 } 8624 8625 /* okay to release */ 8626 lun->flags &= ~CTL_LUN_PR_RESERVED; 8627 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8628 lun->res_type = 0; 8629 8630 /* 8631 * if this isn't an exclusive access 8632 * res generate UA for all other 8633 * registrants. 8634 */ 8635 if (type != SPR_TYPE_EX_AC 8636 && type != SPR_TYPE_WR_EX) { 8637 for (i = softc->init_min; i < softc->init_max; i++) { 8638 if (i == residx || ctl_get_prkey(lun, i) == 0) 8639 continue; 8640 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8641 } 8642 } 8643 mtx_unlock(&lun->lun_lock); 8644 8645 /* Send msg to other side */ 8646 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8647 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8648 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8649 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8650 sizeof(persis_io.pr), M_WAITOK); 8651 break; 8652 8653 case SPRO_CLEAR: 8654 /* send msg to other side */ 8655 8656 mtx_lock(&lun->lun_lock); 8657 lun->flags &= ~CTL_LUN_PR_RESERVED; 8658 lun->res_type = 0; 8659 lun->pr_key_count = 0; 8660 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8661 8662 ctl_clr_prkey(lun, residx); 8663 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8664 if (ctl_get_prkey(lun, i) != 0) { 8665 ctl_clr_prkey(lun, i); 8666 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8667 } 8668 lun->PRGeneration++; 8669 mtx_unlock(&lun->lun_lock); 8670 8671 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8672 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8673 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8674 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8675 sizeof(persis_io.pr), M_WAITOK); 8676 break; 8677 8678 case SPRO_PREEMPT: 8679 case SPRO_PRE_ABO: { 8680 int nretval; 8681 8682 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8683 residx, ctsio, cdb, param); 8684 if (nretval != 0) 8685 return (CTL_RETVAL_COMPLETE); 8686 break; 8687 } 8688 default: 8689 panic("Invalid PR type %x", cdb->action); 8690 } 8691 8692done: 8693 free(ctsio->kern_data_ptr, M_CTL); 8694 ctl_set_success(ctsio); 8695 ctl_done((union ctl_io *)ctsio); 8696 8697 return (retval); 8698} 8699 8700/* 8701 * This routine is for handling a message from the other SC pertaining to 8702 * persistent reserve out. All the error checking will have been done 8703 * so only perorming the action need be done here to keep the two 8704 * in sync. 8705 */ 8706static void 8707ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8708{ 8709 struct ctl_lun *lun; 8710 struct ctl_softc *softc; 8711 int i; 8712 uint32_t residx, targ_lun; 8713 8714 softc = control_softc; 8715 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8716 mtx_lock(&softc->ctl_lock); 8717 if ((targ_lun >= CTL_MAX_LUNS) || 8718 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8719 mtx_unlock(&softc->ctl_lock); 8720 return; 8721 } 8722 mtx_lock(&lun->lun_lock); 8723 mtx_unlock(&softc->ctl_lock); 8724 if (lun->flags & CTL_LUN_DISABLED) { 8725 mtx_unlock(&lun->lun_lock); 8726 return; 8727 } 8728 residx = ctl_get_initindex(&msg->hdr.nexus); 8729 switch(msg->pr.pr_info.action) { 8730 case CTL_PR_REG_KEY: 8731 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8732 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8733 lun->pr_key_count++; 8734 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8735 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8736 lun->PRGeneration++; 8737 break; 8738 8739 case CTL_PR_UNREG_KEY: 8740 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8741 lun->pr_key_count--; 8742 8743 /* XXX Need to see if the reservation has been released */ 8744 /* if so do we need to generate UA? */ 8745 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8746 lun->flags &= ~CTL_LUN_PR_RESERVED; 8747 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8748 8749 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8750 || lun->res_type == SPR_TYPE_EX_AC_RO) 8751 && lun->pr_key_count) { 8752 /* 8753 * If the reservation is a registrants 8754 * only type we need to generate a UA 8755 * for other registered inits. The 8756 * sense code should be RESERVATIONS 8757 * RELEASED 8758 */ 8759 8760 for (i = softc->init_min; i < softc->init_max; i++) { 8761 if (ctl_get_prkey(lun, i) == 0) 8762 continue; 8763 8764 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8765 } 8766 } 8767 lun->res_type = 0; 8768 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8769 if (lun->pr_key_count==0) { 8770 lun->flags &= ~CTL_LUN_PR_RESERVED; 8771 lun->res_type = 0; 8772 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8773 } 8774 } 8775 lun->PRGeneration++; 8776 break; 8777 8778 case CTL_PR_RESERVE: 8779 lun->flags |= CTL_LUN_PR_RESERVED; 8780 lun->res_type = msg->pr.pr_info.res_type; 8781 lun->pr_res_idx = msg->pr.pr_info.residx; 8782 8783 break; 8784 8785 case CTL_PR_RELEASE: 8786 /* 8787 * if this isn't an exclusive access res generate UA for all 8788 * other registrants. 8789 */ 8790 if (lun->res_type != SPR_TYPE_EX_AC 8791 && lun->res_type != SPR_TYPE_WR_EX) { 8792 for (i = softc->init_min; i < softc->init_max; i++) 8793 if (i == residx || ctl_get_prkey(lun, i) == 0) 8794 continue; 8795 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8796 } 8797 8798 lun->flags &= ~CTL_LUN_PR_RESERVED; 8799 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8800 lun->res_type = 0; 8801 break; 8802 8803 case CTL_PR_PREEMPT: 8804 ctl_pro_preempt_other(lun, msg); 8805 break; 8806 case CTL_PR_CLEAR: 8807 lun->flags &= ~CTL_LUN_PR_RESERVED; 8808 lun->res_type = 0; 8809 lun->pr_key_count = 0; 8810 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8811 8812 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8813 if (ctl_get_prkey(lun, i) == 0) 8814 continue; 8815 ctl_clr_prkey(lun, i); 8816 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8817 } 8818 lun->PRGeneration++; 8819 break; 8820 } 8821 8822 mtx_unlock(&lun->lun_lock); 8823} 8824 8825int 8826ctl_read_write(struct ctl_scsiio *ctsio) 8827{ 8828 struct ctl_lun *lun; 8829 struct ctl_lba_len_flags *lbalen; 8830 uint64_t lba; 8831 uint32_t num_blocks; 8832 int flags, retval; 8833 int isread; 8834 8835 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8836 8837 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8838 8839 flags = 0; 8840 retval = CTL_RETVAL_COMPLETE; 8841 8842 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8843 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8844 switch (ctsio->cdb[0]) { 8845 case READ_6: 8846 case WRITE_6: { 8847 struct scsi_rw_6 *cdb; 8848 8849 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8850 8851 lba = scsi_3btoul(cdb->addr); 8852 /* only 5 bits are valid in the most significant address byte */ 8853 lba &= 0x1fffff; 8854 num_blocks = cdb->length; 8855 /* 8856 * This is correct according to SBC-2. 8857 */ 8858 if (num_blocks == 0) 8859 num_blocks = 256; 8860 break; 8861 } 8862 case READ_10: 8863 case WRITE_10: { 8864 struct scsi_rw_10 *cdb; 8865 8866 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8867 if (cdb->byte2 & SRW10_FUA) 8868 flags |= CTL_LLF_FUA; 8869 if (cdb->byte2 & SRW10_DPO) 8870 flags |= CTL_LLF_DPO; 8871 lba = scsi_4btoul(cdb->addr); 8872 num_blocks = scsi_2btoul(cdb->length); 8873 break; 8874 } 8875 case WRITE_VERIFY_10: { 8876 struct scsi_write_verify_10 *cdb; 8877 8878 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8879 flags |= CTL_LLF_FUA; 8880 if (cdb->byte2 & SWV_DPO) 8881 flags |= CTL_LLF_DPO; 8882 lba = scsi_4btoul(cdb->addr); 8883 num_blocks = scsi_2btoul(cdb->length); 8884 break; 8885 } 8886 case READ_12: 8887 case WRITE_12: { 8888 struct scsi_rw_12 *cdb; 8889 8890 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8891 if (cdb->byte2 & SRW12_FUA) 8892 flags |= CTL_LLF_FUA; 8893 if (cdb->byte2 & SRW12_DPO) 8894 flags |= CTL_LLF_DPO; 8895 lba = scsi_4btoul(cdb->addr); 8896 num_blocks = scsi_4btoul(cdb->length); 8897 break; 8898 } 8899 case WRITE_VERIFY_12: { 8900 struct scsi_write_verify_12 *cdb; 8901 8902 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8903 flags |= CTL_LLF_FUA; 8904 if (cdb->byte2 & SWV_DPO) 8905 flags |= CTL_LLF_DPO; 8906 lba = scsi_4btoul(cdb->addr); 8907 num_blocks = scsi_4btoul(cdb->length); 8908 break; 8909 } 8910 case READ_16: 8911 case WRITE_16: { 8912 struct scsi_rw_16 *cdb; 8913 8914 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8915 if (cdb->byte2 & SRW12_FUA) 8916 flags |= CTL_LLF_FUA; 8917 if (cdb->byte2 & SRW12_DPO) 8918 flags |= CTL_LLF_DPO; 8919 lba = scsi_8btou64(cdb->addr); 8920 num_blocks = scsi_4btoul(cdb->length); 8921 break; 8922 } 8923 case WRITE_ATOMIC_16: { 8924 struct scsi_rw_16 *cdb; 8925 8926 if (lun->be_lun->atomicblock == 0) { 8927 ctl_set_invalid_opcode(ctsio); 8928 ctl_done((union ctl_io *)ctsio); 8929 return (CTL_RETVAL_COMPLETE); 8930 } 8931 8932 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8933 if (cdb->byte2 & SRW12_FUA) 8934 flags |= CTL_LLF_FUA; 8935 if (cdb->byte2 & SRW12_DPO) 8936 flags |= CTL_LLF_DPO; 8937 lba = scsi_8btou64(cdb->addr); 8938 num_blocks = scsi_4btoul(cdb->length); 8939 if (num_blocks > lun->be_lun->atomicblock) { 8940 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8941 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8942 /*bit*/ 0); 8943 ctl_done((union ctl_io *)ctsio); 8944 return (CTL_RETVAL_COMPLETE); 8945 } 8946 break; 8947 } 8948 case WRITE_VERIFY_16: { 8949 struct scsi_write_verify_16 *cdb; 8950 8951 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8952 flags |= CTL_LLF_FUA; 8953 if (cdb->byte2 & SWV_DPO) 8954 flags |= CTL_LLF_DPO; 8955 lba = scsi_8btou64(cdb->addr); 8956 num_blocks = scsi_4btoul(cdb->length); 8957 break; 8958 } 8959 default: 8960 /* 8961 * We got a command we don't support. This shouldn't 8962 * happen, commands should be filtered out above us. 8963 */ 8964 ctl_set_invalid_opcode(ctsio); 8965 ctl_done((union ctl_io *)ctsio); 8966 8967 return (CTL_RETVAL_COMPLETE); 8968 break; /* NOTREACHED */ 8969 } 8970 8971 /* 8972 * The first check is to make sure we're in bounds, the second 8973 * check is to catch wrap-around problems. If the lba + num blocks 8974 * is less than the lba, then we've wrapped around and the block 8975 * range is invalid anyway. 8976 */ 8977 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8978 || ((lba + num_blocks) < lba)) { 8979 ctl_set_lba_out_of_range(ctsio); 8980 ctl_done((union ctl_io *)ctsio); 8981 return (CTL_RETVAL_COMPLETE); 8982 } 8983 8984 /* 8985 * According to SBC-3, a transfer length of 0 is not an error. 8986 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8987 * translates to 256 blocks for those commands. 8988 */ 8989 if (num_blocks == 0) { 8990 ctl_set_success(ctsio); 8991 ctl_done((union ctl_io *)ctsio); 8992 return (CTL_RETVAL_COMPLETE); 8993 } 8994 8995 /* Set FUA and/or DPO if caches are disabled. */ 8996 if (isread) { 8997 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8998 SCP_RCD) != 0) 8999 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9000 } else { 9001 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9002 SCP_WCE) == 0) 9003 flags |= CTL_LLF_FUA; 9004 } 9005 9006 lbalen = (struct ctl_lba_len_flags *) 9007 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9008 lbalen->lba = lba; 9009 lbalen->len = num_blocks; 9010 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9011 9012 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9013 ctsio->kern_rel_offset = 0; 9014 9015 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9016 9017 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9018 9019 return (retval); 9020} 9021 9022static int 9023ctl_cnw_cont(union ctl_io *io) 9024{ 9025 struct ctl_scsiio *ctsio; 9026 struct ctl_lun *lun; 9027 struct ctl_lba_len_flags *lbalen; 9028 int retval; 9029 9030 ctsio = &io->scsiio; 9031 ctsio->io_hdr.status = CTL_STATUS_NONE; 9032 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9033 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9034 lbalen = (struct ctl_lba_len_flags *) 9035 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9036 lbalen->flags &= ~CTL_LLF_COMPARE; 9037 lbalen->flags |= CTL_LLF_WRITE; 9038 9039 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9040 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9041 return (retval); 9042} 9043 9044int 9045ctl_cnw(struct ctl_scsiio *ctsio) 9046{ 9047 struct ctl_lun *lun; 9048 struct ctl_lba_len_flags *lbalen; 9049 uint64_t lba; 9050 uint32_t num_blocks; 9051 int flags, retval; 9052 9053 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9054 9055 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9056 9057 flags = 0; 9058 retval = CTL_RETVAL_COMPLETE; 9059 9060 switch (ctsio->cdb[0]) { 9061 case COMPARE_AND_WRITE: { 9062 struct scsi_compare_and_write *cdb; 9063 9064 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9065 if (cdb->byte2 & SRW10_FUA) 9066 flags |= CTL_LLF_FUA; 9067 if (cdb->byte2 & SRW10_DPO) 9068 flags |= CTL_LLF_DPO; 9069 lba = scsi_8btou64(cdb->addr); 9070 num_blocks = cdb->length; 9071 break; 9072 } 9073 default: 9074 /* 9075 * We got a command we don't support. This shouldn't 9076 * happen, commands should be filtered out above us. 9077 */ 9078 ctl_set_invalid_opcode(ctsio); 9079 ctl_done((union ctl_io *)ctsio); 9080 9081 return (CTL_RETVAL_COMPLETE); 9082 break; /* NOTREACHED */ 9083 } 9084 9085 /* 9086 * The first check is to make sure we're in bounds, the second 9087 * check is to catch wrap-around problems. If the lba + num blocks 9088 * is less than the lba, then we've wrapped around and the block 9089 * range is invalid anyway. 9090 */ 9091 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9092 || ((lba + num_blocks) < lba)) { 9093 ctl_set_lba_out_of_range(ctsio); 9094 ctl_done((union ctl_io *)ctsio); 9095 return (CTL_RETVAL_COMPLETE); 9096 } 9097 9098 /* 9099 * According to SBC-3, a transfer length of 0 is not an error. 9100 */ 9101 if (num_blocks == 0) { 9102 ctl_set_success(ctsio); 9103 ctl_done((union ctl_io *)ctsio); 9104 return (CTL_RETVAL_COMPLETE); 9105 } 9106 9107 /* Set FUA if write cache is disabled. */ 9108 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9109 SCP_WCE) == 0) 9110 flags |= CTL_LLF_FUA; 9111 9112 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9113 ctsio->kern_rel_offset = 0; 9114 9115 /* 9116 * Set the IO_CONT flag, so that if this I/O gets passed to 9117 * ctl_data_submit_done(), it'll get passed back to 9118 * ctl_ctl_cnw_cont() for further processing. 9119 */ 9120 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9121 ctsio->io_cont = ctl_cnw_cont; 9122 9123 lbalen = (struct ctl_lba_len_flags *) 9124 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9125 lbalen->lba = lba; 9126 lbalen->len = num_blocks; 9127 lbalen->flags = CTL_LLF_COMPARE | flags; 9128 9129 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9130 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9131 return (retval); 9132} 9133 9134int 9135ctl_verify(struct ctl_scsiio *ctsio) 9136{ 9137 struct ctl_lun *lun; 9138 struct ctl_lba_len_flags *lbalen; 9139 uint64_t lba; 9140 uint32_t num_blocks; 9141 int bytchk, flags; 9142 int retval; 9143 9144 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9145 9146 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9147 9148 bytchk = 0; 9149 flags = CTL_LLF_FUA; 9150 retval = CTL_RETVAL_COMPLETE; 9151 9152 switch (ctsio->cdb[0]) { 9153 case VERIFY_10: { 9154 struct scsi_verify_10 *cdb; 9155 9156 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9157 if (cdb->byte2 & SVFY_BYTCHK) 9158 bytchk = 1; 9159 if (cdb->byte2 & SVFY_DPO) 9160 flags |= CTL_LLF_DPO; 9161 lba = scsi_4btoul(cdb->addr); 9162 num_blocks = scsi_2btoul(cdb->length); 9163 break; 9164 } 9165 case VERIFY_12: { 9166 struct scsi_verify_12 *cdb; 9167 9168 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9169 if (cdb->byte2 & SVFY_BYTCHK) 9170 bytchk = 1; 9171 if (cdb->byte2 & SVFY_DPO) 9172 flags |= CTL_LLF_DPO; 9173 lba = scsi_4btoul(cdb->addr); 9174 num_blocks = scsi_4btoul(cdb->length); 9175 break; 9176 } 9177 case VERIFY_16: { 9178 struct scsi_rw_16 *cdb; 9179 9180 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9181 if (cdb->byte2 & SVFY_BYTCHK) 9182 bytchk = 1; 9183 if (cdb->byte2 & SVFY_DPO) 9184 flags |= CTL_LLF_DPO; 9185 lba = scsi_8btou64(cdb->addr); 9186 num_blocks = scsi_4btoul(cdb->length); 9187 break; 9188 } 9189 default: 9190 /* 9191 * We got a command we don't support. This shouldn't 9192 * happen, commands should be filtered out above us. 9193 */ 9194 ctl_set_invalid_opcode(ctsio); 9195 ctl_done((union ctl_io *)ctsio); 9196 return (CTL_RETVAL_COMPLETE); 9197 } 9198 9199 /* 9200 * The first check is to make sure we're in bounds, the second 9201 * check is to catch wrap-around problems. If the lba + num blocks 9202 * is less than the lba, then we've wrapped around and the block 9203 * range is invalid anyway. 9204 */ 9205 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9206 || ((lba + num_blocks) < lba)) { 9207 ctl_set_lba_out_of_range(ctsio); 9208 ctl_done((union ctl_io *)ctsio); 9209 return (CTL_RETVAL_COMPLETE); 9210 } 9211 9212 /* 9213 * According to SBC-3, a transfer length of 0 is not an error. 9214 */ 9215 if (num_blocks == 0) { 9216 ctl_set_success(ctsio); 9217 ctl_done((union ctl_io *)ctsio); 9218 return (CTL_RETVAL_COMPLETE); 9219 } 9220 9221 lbalen = (struct ctl_lba_len_flags *) 9222 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9223 lbalen->lba = lba; 9224 lbalen->len = num_blocks; 9225 if (bytchk) { 9226 lbalen->flags = CTL_LLF_COMPARE | flags; 9227 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9228 } else { 9229 lbalen->flags = CTL_LLF_VERIFY | flags; 9230 ctsio->kern_total_len = 0; 9231 } 9232 ctsio->kern_rel_offset = 0; 9233 9234 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9235 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9236 return (retval); 9237} 9238 9239int 9240ctl_report_luns(struct ctl_scsiio *ctsio) 9241{ 9242 struct ctl_softc *softc = control_softc; 9243 struct scsi_report_luns *cdb; 9244 struct scsi_report_luns_data *lun_data; 9245 struct ctl_lun *lun, *request_lun; 9246 struct ctl_port *port; 9247 int num_luns, retval; 9248 uint32_t alloc_len, lun_datalen; 9249 int num_filled, well_known; 9250 uint32_t initidx, targ_lun_id, lun_id; 9251 9252 retval = CTL_RETVAL_COMPLETE; 9253 well_known = 0; 9254 9255 cdb = (struct scsi_report_luns *)ctsio->cdb; 9256 port = ctl_io_port(&ctsio->io_hdr); 9257 9258 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9259 9260 mtx_lock(&softc->ctl_lock); 9261 num_luns = 0; 9262 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9263 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9264 num_luns++; 9265 } 9266 mtx_unlock(&softc->ctl_lock); 9267 9268 switch (cdb->select_report) { 9269 case RPL_REPORT_DEFAULT: 9270 case RPL_REPORT_ALL: 9271 break; 9272 case RPL_REPORT_WELLKNOWN: 9273 well_known = 1; 9274 num_luns = 0; 9275 break; 9276 default: 9277 ctl_set_invalid_field(ctsio, 9278 /*sks_valid*/ 1, 9279 /*command*/ 1, 9280 /*field*/ 2, 9281 /*bit_valid*/ 0, 9282 /*bit*/ 0); 9283 ctl_done((union ctl_io *)ctsio); 9284 return (retval); 9285 break; /* NOTREACHED */ 9286 } 9287 9288 alloc_len = scsi_4btoul(cdb->length); 9289 /* 9290 * The initiator has to allocate at least 16 bytes for this request, 9291 * so he can at least get the header and the first LUN. Otherwise 9292 * we reject the request (per SPC-3 rev 14, section 6.21). 9293 */ 9294 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9295 sizeof(struct scsi_report_luns_lundata))) { 9296 ctl_set_invalid_field(ctsio, 9297 /*sks_valid*/ 1, 9298 /*command*/ 1, 9299 /*field*/ 6, 9300 /*bit_valid*/ 0, 9301 /*bit*/ 0); 9302 ctl_done((union ctl_io *)ctsio); 9303 return (retval); 9304 } 9305 9306 request_lun = (struct ctl_lun *) 9307 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9308 9309 lun_datalen = sizeof(*lun_data) + 9310 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9311 9312 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9313 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9314 ctsio->kern_sg_entries = 0; 9315 9316 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9317 9318 mtx_lock(&softc->ctl_lock); 9319 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9320 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9321 if (lun_id >= CTL_MAX_LUNS) 9322 continue; 9323 lun = softc->ctl_luns[lun_id]; 9324 if (lun == NULL) 9325 continue; 9326 9327 if (targ_lun_id <= 0xff) { 9328 /* 9329 * Peripheral addressing method, bus number 0. 9330 */ 9331 lun_data->luns[num_filled].lundata[0] = 9332 RPL_LUNDATA_ATYP_PERIPH; 9333 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9334 num_filled++; 9335 } else if (targ_lun_id <= 0x3fff) { 9336 /* 9337 * Flat addressing method. 9338 */ 9339 lun_data->luns[num_filled].lundata[0] = 9340 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9341 lun_data->luns[num_filled].lundata[1] = 9342 (targ_lun_id & 0xff); 9343 num_filled++; 9344 } else if (targ_lun_id <= 0xffffff) { 9345 /* 9346 * Extended flat addressing method. 9347 */ 9348 lun_data->luns[num_filled].lundata[0] = 9349 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9350 scsi_ulto3b(targ_lun_id, 9351 &lun_data->luns[num_filled].lundata[1]); 9352 num_filled++; 9353 } else { 9354 printf("ctl_report_luns: bogus LUN number %jd, " 9355 "skipping\n", (intmax_t)targ_lun_id); 9356 } 9357 /* 9358 * According to SPC-3, rev 14 section 6.21: 9359 * 9360 * "The execution of a REPORT LUNS command to any valid and 9361 * installed logical unit shall clear the REPORTED LUNS DATA 9362 * HAS CHANGED unit attention condition for all logical 9363 * units of that target with respect to the requesting 9364 * initiator. A valid and installed logical unit is one 9365 * having a PERIPHERAL QUALIFIER of 000b in the standard 9366 * INQUIRY data (see 6.4.2)." 9367 * 9368 * If request_lun is NULL, the LUN this report luns command 9369 * was issued to is either disabled or doesn't exist. In that 9370 * case, we shouldn't clear any pending lun change unit 9371 * attention. 9372 */ 9373 if (request_lun != NULL) { 9374 mtx_lock(&lun->lun_lock); 9375 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9376 mtx_unlock(&lun->lun_lock); 9377 } 9378 } 9379 mtx_unlock(&softc->ctl_lock); 9380 9381 /* 9382 * It's quite possible that we've returned fewer LUNs than we allocated 9383 * space for. Trim it. 9384 */ 9385 lun_datalen = sizeof(*lun_data) + 9386 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9387 9388 if (lun_datalen < alloc_len) { 9389 ctsio->residual = alloc_len - lun_datalen; 9390 ctsio->kern_data_len = lun_datalen; 9391 ctsio->kern_total_len = lun_datalen; 9392 } else { 9393 ctsio->residual = 0; 9394 ctsio->kern_data_len = alloc_len; 9395 ctsio->kern_total_len = alloc_len; 9396 } 9397 ctsio->kern_data_resid = 0; 9398 ctsio->kern_rel_offset = 0; 9399 ctsio->kern_sg_entries = 0; 9400 9401 /* 9402 * We set this to the actual data length, regardless of how much 9403 * space we actually have to return results. If the user looks at 9404 * this value, he'll know whether or not he allocated enough space 9405 * and reissue the command if necessary. We don't support well 9406 * known logical units, so if the user asks for that, return none. 9407 */ 9408 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9409 9410 /* 9411 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9412 * this request. 9413 */ 9414 ctl_set_success(ctsio); 9415 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9416 ctsio->be_move_done = ctl_config_move_done; 9417 ctl_datamove((union ctl_io *)ctsio); 9418 return (retval); 9419} 9420 9421int 9422ctl_request_sense(struct ctl_scsiio *ctsio) 9423{ 9424 struct scsi_request_sense *cdb; 9425 struct scsi_sense_data *sense_ptr; 9426 struct ctl_softc *ctl_softc; 9427 struct ctl_lun *lun; 9428 uint32_t initidx; 9429 int have_error; 9430 scsi_sense_data_type sense_format; 9431 ctl_ua_type ua_type; 9432 9433 cdb = (struct scsi_request_sense *)ctsio->cdb; 9434 9435 ctl_softc = control_softc; 9436 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9437 9438 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9439 9440 /* 9441 * Determine which sense format the user wants. 9442 */ 9443 if (cdb->byte2 & SRS_DESC) 9444 sense_format = SSD_TYPE_DESC; 9445 else 9446 sense_format = SSD_TYPE_FIXED; 9447 9448 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9449 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9450 ctsio->kern_sg_entries = 0; 9451 9452 /* 9453 * struct scsi_sense_data, which is currently set to 256 bytes, is 9454 * larger than the largest allowed value for the length field in the 9455 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9456 */ 9457 ctsio->residual = 0; 9458 ctsio->kern_data_len = cdb->length; 9459 ctsio->kern_total_len = cdb->length; 9460 9461 ctsio->kern_data_resid = 0; 9462 ctsio->kern_rel_offset = 0; 9463 ctsio->kern_sg_entries = 0; 9464 9465 /* 9466 * If we don't have a LUN, we don't have any pending sense. 9467 */ 9468 if (lun == NULL) 9469 goto no_sense; 9470 9471 have_error = 0; 9472 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9473 /* 9474 * Check for pending sense, and then for pending unit attentions. 9475 * Pending sense gets returned first, then pending unit attentions. 9476 */ 9477 mtx_lock(&lun->lun_lock); 9478#ifdef CTL_WITH_CA 9479 if (ctl_is_set(lun->have_ca, initidx)) { 9480 scsi_sense_data_type stored_format; 9481 9482 /* 9483 * Check to see which sense format was used for the stored 9484 * sense data. 9485 */ 9486 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9487 9488 /* 9489 * If the user requested a different sense format than the 9490 * one we stored, then we need to convert it to the other 9491 * format. If we're going from descriptor to fixed format 9492 * sense data, we may lose things in translation, depending 9493 * on what options were used. 9494 * 9495 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9496 * for some reason we'll just copy it out as-is. 9497 */ 9498 if ((stored_format == SSD_TYPE_FIXED) 9499 && (sense_format == SSD_TYPE_DESC)) 9500 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9501 &lun->pending_sense[initidx], 9502 (struct scsi_sense_data_desc *)sense_ptr); 9503 else if ((stored_format == SSD_TYPE_DESC) 9504 && (sense_format == SSD_TYPE_FIXED)) 9505 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9506 &lun->pending_sense[initidx], 9507 (struct scsi_sense_data_fixed *)sense_ptr); 9508 else 9509 memcpy(sense_ptr, &lun->pending_sense[initidx], 9510 MIN(sizeof(*sense_ptr), 9511 sizeof(lun->pending_sense[initidx]))); 9512 9513 ctl_clear_mask(lun->have_ca, initidx); 9514 have_error = 1; 9515 } else 9516#endif 9517 { 9518 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9519 if (ua_type != CTL_UA_NONE) 9520 have_error = 1; 9521 if (ua_type == CTL_UA_LUN_CHANGE) { 9522 mtx_unlock(&lun->lun_lock); 9523 mtx_lock(&ctl_softc->ctl_lock); 9524 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9525 mtx_unlock(&ctl_softc->ctl_lock); 9526 mtx_lock(&lun->lun_lock); 9527 } 9528 9529 } 9530 mtx_unlock(&lun->lun_lock); 9531 9532 /* 9533 * We already have a pending error, return it. 9534 */ 9535 if (have_error != 0) { 9536 /* 9537 * We report the SCSI status as OK, since the status of the 9538 * request sense command itself is OK. 9539 * We report 0 for the sense length, because we aren't doing 9540 * autosense in this case. We're reporting sense as 9541 * parameter data. 9542 */ 9543 ctl_set_success(ctsio); 9544 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9545 ctsio->be_move_done = ctl_config_move_done; 9546 ctl_datamove((union ctl_io *)ctsio); 9547 return (CTL_RETVAL_COMPLETE); 9548 } 9549 9550no_sense: 9551 9552 /* 9553 * No sense information to report, so we report that everything is 9554 * okay. 9555 */ 9556 ctl_set_sense_data(sense_ptr, 9557 lun, 9558 sense_format, 9559 /*current_error*/ 1, 9560 /*sense_key*/ SSD_KEY_NO_SENSE, 9561 /*asc*/ 0x00, 9562 /*ascq*/ 0x00, 9563 SSD_ELEM_NONE); 9564 9565 /* 9566 * We report 0 for the sense length, because we aren't doing 9567 * autosense in this case. We're reporting sense as parameter data. 9568 */ 9569 ctl_set_success(ctsio); 9570 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9571 ctsio->be_move_done = ctl_config_move_done; 9572 ctl_datamove((union ctl_io *)ctsio); 9573 return (CTL_RETVAL_COMPLETE); 9574} 9575 9576int 9577ctl_tur(struct ctl_scsiio *ctsio) 9578{ 9579 9580 CTL_DEBUG_PRINT(("ctl_tur\n")); 9581 9582 ctl_set_success(ctsio); 9583 ctl_done((union ctl_io *)ctsio); 9584 9585 return (CTL_RETVAL_COMPLETE); 9586} 9587 9588/* 9589 * SCSI VPD page 0x00, the Supported VPD Pages page. 9590 */ 9591static int 9592ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9593{ 9594 struct scsi_vpd_supported_pages *pages; 9595 int sup_page_size; 9596 struct ctl_lun *lun; 9597 int p; 9598 9599 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9600 9601 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9602 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9603 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9604 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9605 ctsio->kern_sg_entries = 0; 9606 9607 if (sup_page_size < alloc_len) { 9608 ctsio->residual = alloc_len - sup_page_size; 9609 ctsio->kern_data_len = sup_page_size; 9610 ctsio->kern_total_len = sup_page_size; 9611 } else { 9612 ctsio->residual = 0; 9613 ctsio->kern_data_len = alloc_len; 9614 ctsio->kern_total_len = alloc_len; 9615 } 9616 ctsio->kern_data_resid = 0; 9617 ctsio->kern_rel_offset = 0; 9618 ctsio->kern_sg_entries = 0; 9619 9620 /* 9621 * The control device is always connected. The disk device, on the 9622 * other hand, may not be online all the time. Need to change this 9623 * to figure out whether the disk device is actually online or not. 9624 */ 9625 if (lun != NULL) 9626 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9627 lun->be_lun->lun_type; 9628 else 9629 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9630 9631 p = 0; 9632 /* Supported VPD pages */ 9633 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9634 /* Serial Number */ 9635 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9636 /* Device Identification */ 9637 pages->page_list[p++] = SVPD_DEVICE_ID; 9638 /* Extended INQUIRY Data */ 9639 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9640 /* Mode Page Policy */ 9641 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9642 /* SCSI Ports */ 9643 pages->page_list[p++] = SVPD_SCSI_PORTS; 9644 /* Third-party Copy */ 9645 pages->page_list[p++] = SVPD_SCSI_TPC; 9646 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9647 /* Block limits */ 9648 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9649 /* Block Device Characteristics */ 9650 pages->page_list[p++] = SVPD_BDC; 9651 /* Logical Block Provisioning */ 9652 pages->page_list[p++] = SVPD_LBP; 9653 } 9654 pages->length = p; 9655 9656 ctl_set_success(ctsio); 9657 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9658 ctsio->be_move_done = ctl_config_move_done; 9659 ctl_datamove((union ctl_io *)ctsio); 9660 return (CTL_RETVAL_COMPLETE); 9661} 9662 9663/* 9664 * SCSI VPD page 0x80, the Unit Serial Number page. 9665 */ 9666static int 9667ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9668{ 9669 struct scsi_vpd_unit_serial_number *sn_ptr; 9670 struct ctl_lun *lun; 9671 int data_len; 9672 9673 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9674 9675 data_len = 4 + CTL_SN_LEN; 9676 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9677 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9678 if (data_len < alloc_len) { 9679 ctsio->residual = alloc_len - data_len; 9680 ctsio->kern_data_len = data_len; 9681 ctsio->kern_total_len = data_len; 9682 } else { 9683 ctsio->residual = 0; 9684 ctsio->kern_data_len = alloc_len; 9685 ctsio->kern_total_len = alloc_len; 9686 } 9687 ctsio->kern_data_resid = 0; 9688 ctsio->kern_rel_offset = 0; 9689 ctsio->kern_sg_entries = 0; 9690 9691 /* 9692 * The control device is always connected. The disk device, on the 9693 * other hand, may not be online all the time. Need to change this 9694 * to figure out whether the disk device is actually online or not. 9695 */ 9696 if (lun != NULL) 9697 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9698 lun->be_lun->lun_type; 9699 else 9700 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9701 9702 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9703 sn_ptr->length = CTL_SN_LEN; 9704 /* 9705 * If we don't have a LUN, we just leave the serial number as 9706 * all spaces. 9707 */ 9708 if (lun != NULL) { 9709 strncpy((char *)sn_ptr->serial_num, 9710 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9711 } else 9712 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9713 9714 ctl_set_success(ctsio); 9715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9716 ctsio->be_move_done = ctl_config_move_done; 9717 ctl_datamove((union ctl_io *)ctsio); 9718 return (CTL_RETVAL_COMPLETE); 9719} 9720 9721 9722/* 9723 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9724 */ 9725static int 9726ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9727{ 9728 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9729 struct ctl_lun *lun; 9730 int data_len; 9731 9732 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9733 9734 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9735 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9736 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9737 ctsio->kern_sg_entries = 0; 9738 9739 if (data_len < alloc_len) { 9740 ctsio->residual = alloc_len - data_len; 9741 ctsio->kern_data_len = data_len; 9742 ctsio->kern_total_len = data_len; 9743 } else { 9744 ctsio->residual = 0; 9745 ctsio->kern_data_len = alloc_len; 9746 ctsio->kern_total_len = alloc_len; 9747 } 9748 ctsio->kern_data_resid = 0; 9749 ctsio->kern_rel_offset = 0; 9750 ctsio->kern_sg_entries = 0; 9751 9752 /* 9753 * The control device is always connected. The disk device, on the 9754 * other hand, may not be online all the time. 9755 */ 9756 if (lun != NULL) 9757 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9758 lun->be_lun->lun_type; 9759 else 9760 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9761 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9762 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9763 /* 9764 * We support head of queue, ordered and simple tags. 9765 */ 9766 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9767 /* 9768 * Volatile cache supported. 9769 */ 9770 eid_ptr->flags3 = SVPD_EID_V_SUP; 9771 9772 /* 9773 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9774 * attention for a particular IT nexus on all LUNs once we report 9775 * it to that nexus once. This bit is required as of SPC-4. 9776 */ 9777 eid_ptr->flags4 = SVPD_EID_LUICLT; 9778 9779 /* 9780 * XXX KDM in order to correctly answer this, we would need 9781 * information from the SIM to determine how much sense data it 9782 * can send. So this would really be a path inquiry field, most 9783 * likely. This can be set to a maximum of 252 according to SPC-4, 9784 * but the hardware may or may not be able to support that much. 9785 * 0 just means that the maximum sense data length is not reported. 9786 */ 9787 eid_ptr->max_sense_length = 0; 9788 9789 ctl_set_success(ctsio); 9790 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9791 ctsio->be_move_done = ctl_config_move_done; 9792 ctl_datamove((union ctl_io *)ctsio); 9793 return (CTL_RETVAL_COMPLETE); 9794} 9795 9796static int 9797ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9798{ 9799 struct scsi_vpd_mode_page_policy *mpp_ptr; 9800 struct ctl_lun *lun; 9801 int data_len; 9802 9803 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9804 9805 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9806 sizeof(struct scsi_vpd_mode_page_policy_descr); 9807 9808 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9809 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9810 ctsio->kern_sg_entries = 0; 9811 9812 if (data_len < alloc_len) { 9813 ctsio->residual = alloc_len - data_len; 9814 ctsio->kern_data_len = data_len; 9815 ctsio->kern_total_len = data_len; 9816 } else { 9817 ctsio->residual = 0; 9818 ctsio->kern_data_len = alloc_len; 9819 ctsio->kern_total_len = alloc_len; 9820 } 9821 ctsio->kern_data_resid = 0; 9822 ctsio->kern_rel_offset = 0; 9823 ctsio->kern_sg_entries = 0; 9824 9825 /* 9826 * The control device is always connected. The disk device, on the 9827 * other hand, may not be online all the time. 9828 */ 9829 if (lun != NULL) 9830 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9831 lun->be_lun->lun_type; 9832 else 9833 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9834 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9835 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9836 mpp_ptr->descr[0].page_code = 0x3f; 9837 mpp_ptr->descr[0].subpage_code = 0xff; 9838 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9839 9840 ctl_set_success(ctsio); 9841 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9842 ctsio->be_move_done = ctl_config_move_done; 9843 ctl_datamove((union ctl_io *)ctsio); 9844 return (CTL_RETVAL_COMPLETE); 9845} 9846 9847/* 9848 * SCSI VPD page 0x83, the Device Identification page. 9849 */ 9850static int 9851ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9852{ 9853 struct scsi_vpd_device_id *devid_ptr; 9854 struct scsi_vpd_id_descriptor *desc; 9855 struct ctl_softc *softc; 9856 struct ctl_lun *lun; 9857 struct ctl_port *port; 9858 int data_len; 9859 uint8_t proto; 9860 9861 softc = control_softc; 9862 9863 port = ctl_io_port(&ctsio->io_hdr); 9864 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9865 9866 data_len = sizeof(struct scsi_vpd_device_id) + 9867 sizeof(struct scsi_vpd_id_descriptor) + 9868 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9869 sizeof(struct scsi_vpd_id_descriptor) + 9870 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9871 if (lun && lun->lun_devid) 9872 data_len += lun->lun_devid->len; 9873 if (port && port->port_devid) 9874 data_len += port->port_devid->len; 9875 if (port && port->target_devid) 9876 data_len += port->target_devid->len; 9877 9878 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9879 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9880 ctsio->kern_sg_entries = 0; 9881 9882 if (data_len < alloc_len) { 9883 ctsio->residual = alloc_len - data_len; 9884 ctsio->kern_data_len = data_len; 9885 ctsio->kern_total_len = data_len; 9886 } else { 9887 ctsio->residual = 0; 9888 ctsio->kern_data_len = alloc_len; 9889 ctsio->kern_total_len = alloc_len; 9890 } 9891 ctsio->kern_data_resid = 0; 9892 ctsio->kern_rel_offset = 0; 9893 ctsio->kern_sg_entries = 0; 9894 9895 /* 9896 * The control device is always connected. The disk device, on the 9897 * other hand, may not be online all the time. 9898 */ 9899 if (lun != NULL) 9900 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9901 lun->be_lun->lun_type; 9902 else 9903 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9904 devid_ptr->page_code = SVPD_DEVICE_ID; 9905 scsi_ulto2b(data_len - 4, devid_ptr->length); 9906 9907 if (port && port->port_type == CTL_PORT_FC) 9908 proto = SCSI_PROTO_FC << 4; 9909 else if (port && port->port_type == CTL_PORT_ISCSI) 9910 proto = SCSI_PROTO_ISCSI << 4; 9911 else 9912 proto = SCSI_PROTO_SPI << 4; 9913 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9914 9915 /* 9916 * We're using a LUN association here. i.e., this device ID is a 9917 * per-LUN identifier. 9918 */ 9919 if (lun && lun->lun_devid) { 9920 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9921 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9922 lun->lun_devid->len); 9923 } 9924 9925 /* 9926 * This is for the WWPN which is a port association. 9927 */ 9928 if (port && port->port_devid) { 9929 memcpy(desc, port->port_devid->data, port->port_devid->len); 9930 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9931 port->port_devid->len); 9932 } 9933 9934 /* 9935 * This is for the Relative Target Port(type 4h) identifier 9936 */ 9937 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9938 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9939 SVPD_ID_TYPE_RELTARG; 9940 desc->length = 4; 9941 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9942 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9943 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9944 9945 /* 9946 * This is for the Target Port Group(type 5h) identifier 9947 */ 9948 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9949 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9950 SVPD_ID_TYPE_TPORTGRP; 9951 desc->length = 4; 9952 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9953 &desc->identifier[2]); 9954 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9955 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9956 9957 /* 9958 * This is for the Target identifier 9959 */ 9960 if (port && port->target_devid) { 9961 memcpy(desc, port->target_devid->data, port->target_devid->len); 9962 } 9963 9964 ctl_set_success(ctsio); 9965 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9966 ctsio->be_move_done = ctl_config_move_done; 9967 ctl_datamove((union ctl_io *)ctsio); 9968 return (CTL_RETVAL_COMPLETE); 9969} 9970 9971static int 9972ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9973{ 9974 struct ctl_softc *softc = control_softc; 9975 struct scsi_vpd_scsi_ports *sp; 9976 struct scsi_vpd_port_designation *pd; 9977 struct scsi_vpd_port_designation_cont *pdc; 9978 struct ctl_lun *lun; 9979 struct ctl_port *port; 9980 int data_len, num_target_ports, iid_len, id_len; 9981 9982 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9983 9984 num_target_ports = 0; 9985 iid_len = 0; 9986 id_len = 0; 9987 mtx_lock(&softc->ctl_lock); 9988 STAILQ_FOREACH(port, &softc->port_list, links) { 9989 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9990 continue; 9991 if (lun != NULL && 9992 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9993 continue; 9994 num_target_ports++; 9995 if (port->init_devid) 9996 iid_len += port->init_devid->len; 9997 if (port->port_devid) 9998 id_len += port->port_devid->len; 9999 } 10000 mtx_unlock(&softc->ctl_lock); 10001 10002 data_len = sizeof(struct scsi_vpd_scsi_ports) + 10003 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10004 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10005 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10006 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10007 ctsio->kern_sg_entries = 0; 10008 10009 if (data_len < alloc_len) { 10010 ctsio->residual = alloc_len - data_len; 10011 ctsio->kern_data_len = data_len; 10012 ctsio->kern_total_len = data_len; 10013 } else { 10014 ctsio->residual = 0; 10015 ctsio->kern_data_len = alloc_len; 10016 ctsio->kern_total_len = alloc_len; 10017 } 10018 ctsio->kern_data_resid = 0; 10019 ctsio->kern_rel_offset = 0; 10020 ctsio->kern_sg_entries = 0; 10021 10022 /* 10023 * The control device is always connected. The disk device, on the 10024 * other hand, may not be online all the time. Need to change this 10025 * to figure out whether the disk device is actually online or not. 10026 */ 10027 if (lun != NULL) 10028 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10029 lun->be_lun->lun_type; 10030 else 10031 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10032 10033 sp->page_code = SVPD_SCSI_PORTS; 10034 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10035 sp->page_length); 10036 pd = &sp->design[0]; 10037 10038 mtx_lock(&softc->ctl_lock); 10039 STAILQ_FOREACH(port, &softc->port_list, links) { 10040 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10041 continue; 10042 if (lun != NULL && 10043 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10044 continue; 10045 scsi_ulto2b(port->targ_port, pd->relative_port_id); 10046 if (port->init_devid) { 10047 iid_len = port->init_devid->len; 10048 memcpy(pd->initiator_transportid, 10049 port->init_devid->data, port->init_devid->len); 10050 } else 10051 iid_len = 0; 10052 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10053 pdc = (struct scsi_vpd_port_designation_cont *) 10054 (&pd->initiator_transportid[iid_len]); 10055 if (port->port_devid) { 10056 id_len = port->port_devid->len; 10057 memcpy(pdc->target_port_descriptors, 10058 port->port_devid->data, port->port_devid->len); 10059 } else 10060 id_len = 0; 10061 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10062 pd = (struct scsi_vpd_port_designation *) 10063 ((uint8_t *)pdc->target_port_descriptors + id_len); 10064 } 10065 mtx_unlock(&softc->ctl_lock); 10066 10067 ctl_set_success(ctsio); 10068 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10069 ctsio->be_move_done = ctl_config_move_done; 10070 ctl_datamove((union ctl_io *)ctsio); 10071 return (CTL_RETVAL_COMPLETE); 10072} 10073 10074static int 10075ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10076{ 10077 struct scsi_vpd_block_limits *bl_ptr; 10078 struct ctl_lun *lun; 10079 int bs; 10080 10081 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10082 10083 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10084 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10085 ctsio->kern_sg_entries = 0; 10086 10087 if (sizeof(*bl_ptr) < alloc_len) { 10088 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10089 ctsio->kern_data_len = sizeof(*bl_ptr); 10090 ctsio->kern_total_len = sizeof(*bl_ptr); 10091 } else { 10092 ctsio->residual = 0; 10093 ctsio->kern_data_len = alloc_len; 10094 ctsio->kern_total_len = alloc_len; 10095 } 10096 ctsio->kern_data_resid = 0; 10097 ctsio->kern_rel_offset = 0; 10098 ctsio->kern_sg_entries = 0; 10099 10100 /* 10101 * The control device is always connected. The disk device, on the 10102 * other hand, may not be online all the time. Need to change this 10103 * to figure out whether the disk device is actually online or not. 10104 */ 10105 if (lun != NULL) 10106 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10107 lun->be_lun->lun_type; 10108 else 10109 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10110 10111 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10112 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10113 bl_ptr->max_cmp_write_len = 0xff; 10114 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10115 if (lun != NULL) { 10116 bs = lun->be_lun->blocksize; 10117 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10118 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10119 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10120 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10121 if (lun->be_lun->ublockexp != 0) { 10122 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10123 bl_ptr->opt_unmap_grain); 10124 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10125 bl_ptr->unmap_grain_align); 10126 } 10127 } 10128 scsi_ulto4b(lun->be_lun->atomicblock, 10129 bl_ptr->max_atomic_transfer_length); 10130 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10131 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10132 } 10133 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10134 10135 ctl_set_success(ctsio); 10136 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10137 ctsio->be_move_done = ctl_config_move_done; 10138 ctl_datamove((union ctl_io *)ctsio); 10139 return (CTL_RETVAL_COMPLETE); 10140} 10141 10142static int 10143ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10144{ 10145 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10146 struct ctl_lun *lun; 10147 const char *value; 10148 u_int i; 10149 10150 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10151 10152 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10153 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10154 ctsio->kern_sg_entries = 0; 10155 10156 if (sizeof(*bdc_ptr) < alloc_len) { 10157 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10158 ctsio->kern_data_len = sizeof(*bdc_ptr); 10159 ctsio->kern_total_len = sizeof(*bdc_ptr); 10160 } else { 10161 ctsio->residual = 0; 10162 ctsio->kern_data_len = alloc_len; 10163 ctsio->kern_total_len = alloc_len; 10164 } 10165 ctsio->kern_data_resid = 0; 10166 ctsio->kern_rel_offset = 0; 10167 ctsio->kern_sg_entries = 0; 10168 10169 /* 10170 * The control device is always connected. The disk device, on the 10171 * other hand, may not be online all the time. Need to change this 10172 * to figure out whether the disk device is actually online or not. 10173 */ 10174 if (lun != NULL) 10175 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10176 lun->be_lun->lun_type; 10177 else 10178 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10179 bdc_ptr->page_code = SVPD_BDC; 10180 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10181 if (lun != NULL && 10182 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10183 i = strtol(value, NULL, 0); 10184 else 10185 i = CTL_DEFAULT_ROTATION_RATE; 10186 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10187 if (lun != NULL && 10188 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10189 i = strtol(value, NULL, 0); 10190 else 10191 i = 0; 10192 bdc_ptr->wab_wac_ff = (i & 0x0f); 10193 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10194 10195 ctl_set_success(ctsio); 10196 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10197 ctsio->be_move_done = ctl_config_move_done; 10198 ctl_datamove((union ctl_io *)ctsio); 10199 return (CTL_RETVAL_COMPLETE); 10200} 10201 10202static int 10203ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10204{ 10205 struct scsi_vpd_logical_block_prov *lbp_ptr; 10206 struct ctl_lun *lun; 10207 10208 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10209 10210 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10211 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10212 ctsio->kern_sg_entries = 0; 10213 10214 if (sizeof(*lbp_ptr) < alloc_len) { 10215 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10216 ctsio->kern_data_len = sizeof(*lbp_ptr); 10217 ctsio->kern_total_len = sizeof(*lbp_ptr); 10218 } else { 10219 ctsio->residual = 0; 10220 ctsio->kern_data_len = alloc_len; 10221 ctsio->kern_total_len = alloc_len; 10222 } 10223 ctsio->kern_data_resid = 0; 10224 ctsio->kern_rel_offset = 0; 10225 ctsio->kern_sg_entries = 0; 10226 10227 /* 10228 * The control device is always connected. The disk device, on the 10229 * other hand, may not be online all the time. Need to change this 10230 * to figure out whether the disk device is actually online or not. 10231 */ 10232 if (lun != NULL) 10233 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10234 lun->be_lun->lun_type; 10235 else 10236 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10237 10238 lbp_ptr->page_code = SVPD_LBP; 10239 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10240 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10241 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10242 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10243 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10244 lbp_ptr->prov_type = SVPD_LBP_THIN; 10245 } 10246 10247 ctl_set_success(ctsio); 10248 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10249 ctsio->be_move_done = ctl_config_move_done; 10250 ctl_datamove((union ctl_io *)ctsio); 10251 return (CTL_RETVAL_COMPLETE); 10252} 10253 10254/* 10255 * INQUIRY with the EVPD bit set. 10256 */ 10257static int 10258ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10259{ 10260 struct ctl_lun *lun; 10261 struct scsi_inquiry *cdb; 10262 int alloc_len, retval; 10263 10264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10265 cdb = (struct scsi_inquiry *)ctsio->cdb; 10266 alloc_len = scsi_2btoul(cdb->length); 10267 10268 switch (cdb->page_code) { 10269 case SVPD_SUPPORTED_PAGES: 10270 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10271 break; 10272 case SVPD_UNIT_SERIAL_NUMBER: 10273 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10274 break; 10275 case SVPD_DEVICE_ID: 10276 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10277 break; 10278 case SVPD_EXTENDED_INQUIRY_DATA: 10279 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10280 break; 10281 case SVPD_MODE_PAGE_POLICY: 10282 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10283 break; 10284 case SVPD_SCSI_PORTS: 10285 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10286 break; 10287 case SVPD_SCSI_TPC: 10288 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10289 break; 10290 case SVPD_BLOCK_LIMITS: 10291 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10292 goto err; 10293 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10294 break; 10295 case SVPD_BDC: 10296 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10297 goto err; 10298 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10299 break; 10300 case SVPD_LBP: 10301 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10302 goto err; 10303 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10304 break; 10305 default: 10306err: 10307 ctl_set_invalid_field(ctsio, 10308 /*sks_valid*/ 1, 10309 /*command*/ 1, 10310 /*field*/ 2, 10311 /*bit_valid*/ 0, 10312 /*bit*/ 0); 10313 ctl_done((union ctl_io *)ctsio); 10314 retval = CTL_RETVAL_COMPLETE; 10315 break; 10316 } 10317 10318 return (retval); 10319} 10320 10321/* 10322 * Standard INQUIRY data. 10323 */ 10324static int 10325ctl_inquiry_std(struct ctl_scsiio *ctsio) 10326{ 10327 struct scsi_inquiry_data *inq_ptr; 10328 struct scsi_inquiry *cdb; 10329 struct ctl_softc *softc; 10330 struct ctl_port *port; 10331 struct ctl_lun *lun; 10332 char *val; 10333 uint32_t alloc_len, data_len; 10334 ctl_port_type port_type; 10335 10336 softc = control_softc; 10337 10338 /* 10339 * Figure out whether we're talking to a Fibre Channel port or not. 10340 * We treat the ioctl front end, and any SCSI adapters, as packetized 10341 * SCSI front ends. 10342 */ 10343 port = ctl_io_port(&ctsio->io_hdr); 10344 if (port != NULL) 10345 port_type = port->port_type; 10346 else 10347 port_type = CTL_PORT_SCSI; 10348 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10349 port_type = CTL_PORT_SCSI; 10350 10351 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10352 cdb = (struct scsi_inquiry *)ctsio->cdb; 10353 alloc_len = scsi_2btoul(cdb->length); 10354 10355 /* 10356 * We malloc the full inquiry data size here and fill it 10357 * in. If the user only asks for less, we'll give him 10358 * that much. 10359 */ 10360 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10361 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10362 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10363 ctsio->kern_sg_entries = 0; 10364 ctsio->kern_data_resid = 0; 10365 ctsio->kern_rel_offset = 0; 10366 10367 if (data_len < alloc_len) { 10368 ctsio->residual = alloc_len - data_len; 10369 ctsio->kern_data_len = data_len; 10370 ctsio->kern_total_len = data_len; 10371 } else { 10372 ctsio->residual = 0; 10373 ctsio->kern_data_len = alloc_len; 10374 ctsio->kern_total_len = alloc_len; 10375 } 10376 10377 if (lun != NULL) { 10378 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10379 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10380 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10381 lun->be_lun->lun_type; 10382 } else { 10383 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10384 lun->be_lun->lun_type; 10385 } 10386 } else 10387 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10388 10389 /* RMB in byte 2 is 0 */ 10390 inq_ptr->version = SCSI_REV_SPC4; 10391 10392 /* 10393 * According to SAM-3, even if a device only supports a single 10394 * level of LUN addressing, it should still set the HISUP bit: 10395 * 10396 * 4.9.1 Logical unit numbers overview 10397 * 10398 * All logical unit number formats described in this standard are 10399 * hierarchical in structure even when only a single level in that 10400 * hierarchy is used. The HISUP bit shall be set to one in the 10401 * standard INQUIRY data (see SPC-2) when any logical unit number 10402 * format described in this standard is used. Non-hierarchical 10403 * formats are outside the scope of this standard. 10404 * 10405 * Therefore we set the HiSup bit here. 10406 * 10407 * The reponse format is 2, per SPC-3. 10408 */ 10409 inq_ptr->response_format = SID_HiSup | 2; 10410 10411 inq_ptr->additional_length = data_len - 10412 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10413 CTL_DEBUG_PRINT(("additional_length = %d\n", 10414 inq_ptr->additional_length)); 10415 10416 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10417 /* 16 bit addressing */ 10418 if (port_type == CTL_PORT_SCSI) 10419 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10420 /* XXX set the SID_MultiP bit here if we're actually going to 10421 respond on multiple ports */ 10422 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10423 10424 /* 16 bit data bus, synchronous transfers */ 10425 if (port_type == CTL_PORT_SCSI) 10426 inq_ptr->flags = SID_WBus16 | SID_Sync; 10427 /* 10428 * XXX KDM do we want to support tagged queueing on the control 10429 * device at all? 10430 */ 10431 if ((lun == NULL) 10432 || (lun->be_lun->lun_type != T_PROCESSOR)) 10433 inq_ptr->flags |= SID_CmdQue; 10434 /* 10435 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10436 * We have 8 bytes for the vendor name, and 16 bytes for the device 10437 * name and 4 bytes for the revision. 10438 */ 10439 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10440 "vendor")) == NULL) { 10441 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10442 } else { 10443 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10444 strncpy(inq_ptr->vendor, val, 10445 min(sizeof(inq_ptr->vendor), strlen(val))); 10446 } 10447 if (lun == NULL) { 10448 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10449 sizeof(inq_ptr->product)); 10450 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10451 switch (lun->be_lun->lun_type) { 10452 case T_DIRECT: 10453 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10454 sizeof(inq_ptr->product)); 10455 break; 10456 case T_PROCESSOR: 10457 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10458 sizeof(inq_ptr->product)); 10459 break; 10460 default: 10461 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10462 sizeof(inq_ptr->product)); 10463 break; 10464 } 10465 } else { 10466 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10467 strncpy(inq_ptr->product, val, 10468 min(sizeof(inq_ptr->product), strlen(val))); 10469 } 10470 10471 /* 10472 * XXX make this a macro somewhere so it automatically gets 10473 * incremented when we make changes. 10474 */ 10475 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10476 "revision")) == NULL) { 10477 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10478 } else { 10479 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10480 strncpy(inq_ptr->revision, val, 10481 min(sizeof(inq_ptr->revision), strlen(val))); 10482 } 10483 10484 /* 10485 * For parallel SCSI, we support double transition and single 10486 * transition clocking. We also support QAS (Quick Arbitration 10487 * and Selection) and Information Unit transfers on both the 10488 * control and array devices. 10489 */ 10490 if (port_type == CTL_PORT_SCSI) 10491 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10492 SID_SPI_IUS; 10493 10494 /* SAM-5 (no version claimed) */ 10495 scsi_ulto2b(0x00A0, inq_ptr->version1); 10496 /* SPC-4 (no version claimed) */ 10497 scsi_ulto2b(0x0460, inq_ptr->version2); 10498 if (port_type == CTL_PORT_FC) { 10499 /* FCP-2 ANSI INCITS.350:2003 */ 10500 scsi_ulto2b(0x0917, inq_ptr->version3); 10501 } else if (port_type == CTL_PORT_SCSI) { 10502 /* SPI-4 ANSI INCITS.362:200x */ 10503 scsi_ulto2b(0x0B56, inq_ptr->version3); 10504 } else if (port_type == CTL_PORT_ISCSI) { 10505 /* iSCSI (no version claimed) */ 10506 scsi_ulto2b(0x0960, inq_ptr->version3); 10507 } else if (port_type == CTL_PORT_SAS) { 10508 /* SAS (no version claimed) */ 10509 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10510 } 10511 10512 if (lun == NULL) { 10513 /* SBC-4 (no version claimed) */ 10514 scsi_ulto2b(0x0600, inq_ptr->version4); 10515 } else { 10516 switch (lun->be_lun->lun_type) { 10517 case T_DIRECT: 10518 /* SBC-4 (no version claimed) */ 10519 scsi_ulto2b(0x0600, inq_ptr->version4); 10520 break; 10521 case T_PROCESSOR: 10522 default: 10523 break; 10524 } 10525 } 10526 10527 ctl_set_success(ctsio); 10528 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10529 ctsio->be_move_done = ctl_config_move_done; 10530 ctl_datamove((union ctl_io *)ctsio); 10531 return (CTL_RETVAL_COMPLETE); 10532} 10533 10534int 10535ctl_inquiry(struct ctl_scsiio *ctsio) 10536{ 10537 struct scsi_inquiry *cdb; 10538 int retval; 10539 10540 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10541 10542 cdb = (struct scsi_inquiry *)ctsio->cdb; 10543 if (cdb->byte2 & SI_EVPD) 10544 retval = ctl_inquiry_evpd(ctsio); 10545 else if (cdb->page_code == 0) 10546 retval = ctl_inquiry_std(ctsio); 10547 else { 10548 ctl_set_invalid_field(ctsio, 10549 /*sks_valid*/ 1, 10550 /*command*/ 1, 10551 /*field*/ 2, 10552 /*bit_valid*/ 0, 10553 /*bit*/ 0); 10554 ctl_done((union ctl_io *)ctsio); 10555 return (CTL_RETVAL_COMPLETE); 10556 } 10557 10558 return (retval); 10559} 10560 10561/* 10562 * For known CDB types, parse the LBA and length. 10563 */ 10564static int 10565ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10566{ 10567 if (io->io_hdr.io_type != CTL_IO_SCSI) 10568 return (1); 10569 10570 switch (io->scsiio.cdb[0]) { 10571 case COMPARE_AND_WRITE: { 10572 struct scsi_compare_and_write *cdb; 10573 10574 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10575 10576 *lba = scsi_8btou64(cdb->addr); 10577 *len = cdb->length; 10578 break; 10579 } 10580 case READ_6: 10581 case WRITE_6: { 10582 struct scsi_rw_6 *cdb; 10583 10584 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10585 10586 *lba = scsi_3btoul(cdb->addr); 10587 /* only 5 bits are valid in the most significant address byte */ 10588 *lba &= 0x1fffff; 10589 *len = cdb->length; 10590 break; 10591 } 10592 case READ_10: 10593 case WRITE_10: { 10594 struct scsi_rw_10 *cdb; 10595 10596 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10597 10598 *lba = scsi_4btoul(cdb->addr); 10599 *len = scsi_2btoul(cdb->length); 10600 break; 10601 } 10602 case WRITE_VERIFY_10: { 10603 struct scsi_write_verify_10 *cdb; 10604 10605 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10606 10607 *lba = scsi_4btoul(cdb->addr); 10608 *len = scsi_2btoul(cdb->length); 10609 break; 10610 } 10611 case READ_12: 10612 case WRITE_12: { 10613 struct scsi_rw_12 *cdb; 10614 10615 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10616 10617 *lba = scsi_4btoul(cdb->addr); 10618 *len = scsi_4btoul(cdb->length); 10619 break; 10620 } 10621 case WRITE_VERIFY_12: { 10622 struct scsi_write_verify_12 *cdb; 10623 10624 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10625 10626 *lba = scsi_4btoul(cdb->addr); 10627 *len = scsi_4btoul(cdb->length); 10628 break; 10629 } 10630 case READ_16: 10631 case WRITE_16: 10632 case WRITE_ATOMIC_16: { 10633 struct scsi_rw_16 *cdb; 10634 10635 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10636 10637 *lba = scsi_8btou64(cdb->addr); 10638 *len = scsi_4btoul(cdb->length); 10639 break; 10640 } 10641 case WRITE_VERIFY_16: { 10642 struct scsi_write_verify_16 *cdb; 10643 10644 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10645 10646 *lba = scsi_8btou64(cdb->addr); 10647 *len = scsi_4btoul(cdb->length); 10648 break; 10649 } 10650 case WRITE_SAME_10: { 10651 struct scsi_write_same_10 *cdb; 10652 10653 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10654 10655 *lba = scsi_4btoul(cdb->addr); 10656 *len = scsi_2btoul(cdb->length); 10657 break; 10658 } 10659 case WRITE_SAME_16: { 10660 struct scsi_write_same_16 *cdb; 10661 10662 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10663 10664 *lba = scsi_8btou64(cdb->addr); 10665 *len = scsi_4btoul(cdb->length); 10666 break; 10667 } 10668 case VERIFY_10: { 10669 struct scsi_verify_10 *cdb; 10670 10671 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10672 10673 *lba = scsi_4btoul(cdb->addr); 10674 *len = scsi_2btoul(cdb->length); 10675 break; 10676 } 10677 case VERIFY_12: { 10678 struct scsi_verify_12 *cdb; 10679 10680 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10681 10682 *lba = scsi_4btoul(cdb->addr); 10683 *len = scsi_4btoul(cdb->length); 10684 break; 10685 } 10686 case VERIFY_16: { 10687 struct scsi_verify_16 *cdb; 10688 10689 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10690 10691 *lba = scsi_8btou64(cdb->addr); 10692 *len = scsi_4btoul(cdb->length); 10693 break; 10694 } 10695 case UNMAP: { 10696 *lba = 0; 10697 *len = UINT64_MAX; 10698 break; 10699 } 10700 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10701 struct scsi_get_lba_status *cdb; 10702 10703 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10704 *lba = scsi_8btou64(cdb->addr); 10705 *len = UINT32_MAX; 10706 break; 10707 } 10708 default: 10709 return (1); 10710 break; /* NOTREACHED */ 10711 } 10712 10713 return (0); 10714} 10715 10716static ctl_action 10717ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10718 bool seq) 10719{ 10720 uint64_t endlba1, endlba2; 10721 10722 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10723 endlba2 = lba2 + len2 - 1; 10724 10725 if ((endlba1 < lba2) || (endlba2 < lba1)) 10726 return (CTL_ACTION_PASS); 10727 else 10728 return (CTL_ACTION_BLOCK); 10729} 10730 10731static int 10732ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10733{ 10734 struct ctl_ptr_len_flags *ptrlen; 10735 struct scsi_unmap_desc *buf, *end, *range; 10736 uint64_t lba; 10737 uint32_t len; 10738 10739 /* If not UNMAP -- go other way. */ 10740 if (io->io_hdr.io_type != CTL_IO_SCSI || 10741 io->scsiio.cdb[0] != UNMAP) 10742 return (CTL_ACTION_ERROR); 10743 10744 /* If UNMAP without data -- block and wait for data. */ 10745 ptrlen = (struct ctl_ptr_len_flags *) 10746 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10747 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10748 ptrlen->ptr == NULL) 10749 return (CTL_ACTION_BLOCK); 10750 10751 /* UNMAP with data -- check for collision. */ 10752 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10753 end = buf + ptrlen->len / sizeof(*buf); 10754 for (range = buf; range < end; range++) { 10755 lba = scsi_8btou64(range->lba); 10756 len = scsi_4btoul(range->length); 10757 if ((lba < lba2 + len2) && (lba + len > lba2)) 10758 return (CTL_ACTION_BLOCK); 10759 } 10760 return (CTL_ACTION_PASS); 10761} 10762 10763static ctl_action 10764ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10765{ 10766 uint64_t lba1, lba2; 10767 uint64_t len1, len2; 10768 int retval; 10769 10770 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10771 return (CTL_ACTION_ERROR); 10772 10773 retval = ctl_extent_check_unmap(io1, lba2, len2); 10774 if (retval != CTL_ACTION_ERROR) 10775 return (retval); 10776 10777 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10778 return (CTL_ACTION_ERROR); 10779 10780 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10781 seq = FALSE; 10782 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10783} 10784 10785static ctl_action 10786ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10787{ 10788 uint64_t lba1, lba2; 10789 uint64_t len1, len2; 10790 10791 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10792 return (CTL_ACTION_PASS); 10793 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10794 return (CTL_ACTION_ERROR); 10795 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10796 return (CTL_ACTION_ERROR); 10797 10798 if (lba1 + len1 == lba2) 10799 return (CTL_ACTION_BLOCK); 10800 return (CTL_ACTION_PASS); 10801} 10802 10803static ctl_action 10804ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10805 union ctl_io *ooa_io) 10806{ 10807 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10808 ctl_serialize_action *serialize_row; 10809 10810 /* 10811 * The initiator attempted multiple untagged commands at the same 10812 * time. Can't do that. 10813 */ 10814 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10815 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10816 && ((pending_io->io_hdr.nexus.targ_port == 10817 ooa_io->io_hdr.nexus.targ_port) 10818 && (pending_io->io_hdr.nexus.initid == 10819 ooa_io->io_hdr.nexus.initid)) 10820 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10821 CTL_FLAG_STATUS_SENT)) == 0)) 10822 return (CTL_ACTION_OVERLAP); 10823 10824 /* 10825 * The initiator attempted to send multiple tagged commands with 10826 * the same ID. (It's fine if different initiators have the same 10827 * tag ID.) 10828 * 10829 * Even if all of those conditions are true, we don't kill the I/O 10830 * if the command ahead of us has been aborted. We won't end up 10831 * sending it to the FETD, and it's perfectly legal to resend a 10832 * command with the same tag number as long as the previous 10833 * instance of this tag number has been aborted somehow. 10834 */ 10835 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10836 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10837 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10838 && ((pending_io->io_hdr.nexus.targ_port == 10839 ooa_io->io_hdr.nexus.targ_port) 10840 && (pending_io->io_hdr.nexus.initid == 10841 ooa_io->io_hdr.nexus.initid)) 10842 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10843 CTL_FLAG_STATUS_SENT)) == 0)) 10844 return (CTL_ACTION_OVERLAP_TAG); 10845 10846 /* 10847 * If we get a head of queue tag, SAM-3 says that we should 10848 * immediately execute it. 10849 * 10850 * What happens if this command would normally block for some other 10851 * reason? e.g. a request sense with a head of queue tag 10852 * immediately after a write. Normally that would block, but this 10853 * will result in its getting executed immediately... 10854 * 10855 * We currently return "pass" instead of "skip", so we'll end up 10856 * going through the rest of the queue to check for overlapped tags. 10857 * 10858 * XXX KDM check for other types of blockage first?? 10859 */ 10860 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10861 return (CTL_ACTION_PASS); 10862 10863 /* 10864 * Ordered tags have to block until all items ahead of them 10865 * have completed. If we get called with an ordered tag, we always 10866 * block, if something else is ahead of us in the queue. 10867 */ 10868 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10869 return (CTL_ACTION_BLOCK); 10870 10871 /* 10872 * Simple tags get blocked until all head of queue and ordered tags 10873 * ahead of them have completed. I'm lumping untagged commands in 10874 * with simple tags here. XXX KDM is that the right thing to do? 10875 */ 10876 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10877 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10878 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10879 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10880 return (CTL_ACTION_BLOCK); 10881 10882 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10883 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10884 10885 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10886 10887 switch (serialize_row[pending_entry->seridx]) { 10888 case CTL_SER_BLOCK: 10889 return (CTL_ACTION_BLOCK); 10890 case CTL_SER_EXTENT: 10891 return (ctl_extent_check(ooa_io, pending_io, 10892 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10893 case CTL_SER_EXTENTOPT: 10894 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10895 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10896 return (ctl_extent_check(ooa_io, pending_io, 10897 (lun->be_lun && 10898 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10899 return (CTL_ACTION_PASS); 10900 case CTL_SER_EXTENTSEQ: 10901 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10902 return (ctl_extent_check_seq(ooa_io, pending_io)); 10903 return (CTL_ACTION_PASS); 10904 case CTL_SER_PASS: 10905 return (CTL_ACTION_PASS); 10906 case CTL_SER_BLOCKOPT: 10907 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10908 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10909 return (CTL_ACTION_BLOCK); 10910 return (CTL_ACTION_PASS); 10911 case CTL_SER_SKIP: 10912 return (CTL_ACTION_SKIP); 10913 default: 10914 panic("invalid serialization value %d", 10915 serialize_row[pending_entry->seridx]); 10916 } 10917 10918 return (CTL_ACTION_ERROR); 10919} 10920 10921/* 10922 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10923 * Assumptions: 10924 * - pending_io is generally either incoming, or on the blocked queue 10925 * - starting I/O is the I/O we want to start the check with. 10926 */ 10927static ctl_action 10928ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10929 union ctl_io *starting_io) 10930{ 10931 union ctl_io *ooa_io; 10932 ctl_action action; 10933 10934 mtx_assert(&lun->lun_lock, MA_OWNED); 10935 10936 /* 10937 * Run back along the OOA queue, starting with the current 10938 * blocked I/O and going through every I/O before it on the 10939 * queue. If starting_io is NULL, we'll just end up returning 10940 * CTL_ACTION_PASS. 10941 */ 10942 for (ooa_io = starting_io; ooa_io != NULL; 10943 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10944 ooa_links)){ 10945 10946 /* 10947 * This routine just checks to see whether 10948 * cur_blocked is blocked by ooa_io, which is ahead 10949 * of it in the queue. It doesn't queue/dequeue 10950 * cur_blocked. 10951 */ 10952 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10953 switch (action) { 10954 case CTL_ACTION_BLOCK: 10955 case CTL_ACTION_OVERLAP: 10956 case CTL_ACTION_OVERLAP_TAG: 10957 case CTL_ACTION_SKIP: 10958 case CTL_ACTION_ERROR: 10959 return (action); 10960 break; /* NOTREACHED */ 10961 case CTL_ACTION_PASS: 10962 break; 10963 default: 10964 panic("invalid action %d", action); 10965 break; /* NOTREACHED */ 10966 } 10967 } 10968 10969 return (CTL_ACTION_PASS); 10970} 10971 10972/* 10973 * Assumptions: 10974 * - An I/O has just completed, and has been removed from the per-LUN OOA 10975 * queue, so some items on the blocked queue may now be unblocked. 10976 */ 10977static int 10978ctl_check_blocked(struct ctl_lun *lun) 10979{ 10980 struct ctl_softc *softc = lun->ctl_softc; 10981 union ctl_io *cur_blocked, *next_blocked; 10982 10983 mtx_assert(&lun->lun_lock, MA_OWNED); 10984 10985 /* 10986 * Run forward from the head of the blocked queue, checking each 10987 * entry against the I/Os prior to it on the OOA queue to see if 10988 * there is still any blockage. 10989 * 10990 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10991 * with our removing a variable on it while it is traversing the 10992 * list. 10993 */ 10994 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10995 cur_blocked != NULL; cur_blocked = next_blocked) { 10996 union ctl_io *prev_ooa; 10997 ctl_action action; 10998 10999 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11000 blocked_links); 11001 11002 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11003 ctl_ooaq, ooa_links); 11004 11005 /* 11006 * If cur_blocked happens to be the first item in the OOA 11007 * queue now, prev_ooa will be NULL, and the action 11008 * returned will just be CTL_ACTION_PASS. 11009 */ 11010 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11011 11012 switch (action) { 11013 case CTL_ACTION_BLOCK: 11014 /* Nothing to do here, still blocked */ 11015 break; 11016 case CTL_ACTION_OVERLAP: 11017 case CTL_ACTION_OVERLAP_TAG: 11018 /* 11019 * This shouldn't happen! In theory we've already 11020 * checked this command for overlap... 11021 */ 11022 break; 11023 case CTL_ACTION_PASS: 11024 case CTL_ACTION_SKIP: { 11025 const struct ctl_cmd_entry *entry; 11026 11027 /* 11028 * The skip case shouldn't happen, this transaction 11029 * should have never made it onto the blocked queue. 11030 */ 11031 /* 11032 * This I/O is no longer blocked, we can remove it 11033 * from the blocked queue. Since this is a TAILQ 11034 * (doubly linked list), we can do O(1) removals 11035 * from any place on the list. 11036 */ 11037 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11038 blocked_links); 11039 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11040 11041 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11042 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11043 /* 11044 * Need to send IO back to original side to 11045 * run 11046 */ 11047 union ctl_ha_msg msg_info; 11048 11049 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11050 msg_info.hdr.original_sc = 11051 cur_blocked->io_hdr.original_sc; 11052 msg_info.hdr.serializing_sc = cur_blocked; 11053 msg_info.hdr.msg_type = CTL_MSG_R2R; 11054 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11055 sizeof(msg_info.hdr), M_NOWAIT); 11056 break; 11057 } 11058 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11059 11060 /* 11061 * Check this I/O for LUN state changes that may 11062 * have happened while this command was blocked. 11063 * The LUN state may have been changed by a command 11064 * ahead of us in the queue, so we need to re-check 11065 * for any states that can be caused by SCSI 11066 * commands. 11067 */ 11068 if (ctl_scsiio_lun_check(lun, entry, 11069 &cur_blocked->scsiio) == 0) { 11070 cur_blocked->io_hdr.flags |= 11071 CTL_FLAG_IS_WAS_ON_RTR; 11072 ctl_enqueue_rtr(cur_blocked); 11073 } else 11074 ctl_done(cur_blocked); 11075 break; 11076 } 11077 default: 11078 /* 11079 * This probably shouldn't happen -- we shouldn't 11080 * get CTL_ACTION_ERROR, or anything else. 11081 */ 11082 break; 11083 } 11084 } 11085 11086 return (CTL_RETVAL_COMPLETE); 11087} 11088 11089/* 11090 * This routine (with one exception) checks LUN flags that can be set by 11091 * commands ahead of us in the OOA queue. These flags have to be checked 11092 * when a command initially comes in, and when we pull a command off the 11093 * blocked queue and are preparing to execute it. The reason we have to 11094 * check these flags for commands on the blocked queue is that the LUN 11095 * state may have been changed by a command ahead of us while we're on the 11096 * blocked queue. 11097 * 11098 * Ordering is somewhat important with these checks, so please pay 11099 * careful attention to the placement of any new checks. 11100 */ 11101static int 11102ctl_scsiio_lun_check(struct ctl_lun *lun, 11103 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11104{ 11105 struct ctl_softc *softc = lun->ctl_softc; 11106 int retval; 11107 uint32_t residx; 11108 11109 retval = 0; 11110 11111 mtx_assert(&lun->lun_lock, MA_OWNED); 11112 11113 /* 11114 * If this shelf is a secondary shelf controller, we may have to 11115 * reject some commands disallowed by HA mode and link state. 11116 */ 11117 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11118 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11119 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11120 ctl_set_lun_unavail(ctsio); 11121 retval = 1; 11122 goto bailout; 11123 } 11124 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11125 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11126 ctl_set_lun_transit(ctsio); 11127 retval = 1; 11128 goto bailout; 11129 } 11130 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11131 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11132 ctl_set_lun_standby(ctsio); 11133 retval = 1; 11134 goto bailout; 11135 } 11136 11137 /* The rest of checks are only done on executing side */ 11138 if (softc->ha_mode == CTL_HA_MODE_XFER) 11139 goto bailout; 11140 } 11141 11142 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11143 if (lun->be_lun && 11144 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11145 ctl_set_hw_write_protected(ctsio); 11146 retval = 1; 11147 goto bailout; 11148 } 11149 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11150 .eca_and_aen & SCP_SWP) != 0) { 11151 ctl_set_sense(ctsio, /*current_error*/ 1, 11152 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11153 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11154 retval = 1; 11155 goto bailout; 11156 } 11157 } 11158 11159 /* 11160 * Check for a reservation conflict. If this command isn't allowed 11161 * even on reserved LUNs, and if this initiator isn't the one who 11162 * reserved us, reject the command with a reservation conflict. 11163 */ 11164 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11165 if ((lun->flags & CTL_LUN_RESERVED) 11166 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11167 if (lun->res_idx != residx) { 11168 ctl_set_reservation_conflict(ctsio); 11169 retval = 1; 11170 goto bailout; 11171 } 11172 } 11173 11174 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11175 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11176 /* No reservation or command is allowed. */; 11177 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11178 (lun->res_type == SPR_TYPE_WR_EX || 11179 lun->res_type == SPR_TYPE_WR_EX_RO || 11180 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11181 /* The command is allowed for Write Exclusive resv. */; 11182 } else { 11183 /* 11184 * if we aren't registered or it's a res holder type 11185 * reservation and this isn't the res holder then set a 11186 * conflict. 11187 */ 11188 if (ctl_get_prkey(lun, residx) == 0 11189 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11190 ctl_set_reservation_conflict(ctsio); 11191 retval = 1; 11192 goto bailout; 11193 } 11194 } 11195 11196 if ((lun->flags & CTL_LUN_OFFLINE) 11197 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 11198 ctl_set_lun_not_ready(ctsio); 11199 retval = 1; 11200 goto bailout; 11201 } 11202 11203 if ((lun->flags & CTL_LUN_STOPPED) 11204 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11205 /* "Logical unit not ready, initializing cmd. required" */ 11206 ctl_set_lun_stopped(ctsio); 11207 retval = 1; 11208 goto bailout; 11209 } 11210 11211 if ((lun->flags & CTL_LUN_INOPERABLE) 11212 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11213 /* "Medium format corrupted" */ 11214 ctl_set_medium_format_corrupted(ctsio); 11215 retval = 1; 11216 goto bailout; 11217 } 11218 11219bailout: 11220 return (retval); 11221} 11222 11223static void 11224ctl_failover_io(union ctl_io *io, int have_lock) 11225{ 11226 ctl_set_busy(&io->scsiio); 11227 ctl_done(io); 11228} 11229 11230static void 11231ctl_failover_lun(struct ctl_lun *lun) 11232{ 11233 struct ctl_softc *softc = lun->ctl_softc; 11234 struct ctl_io_hdr *io, *next_io; 11235 11236 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 11237 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11238 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11239 /* We are master */ 11240 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11241 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11242 io->flags |= CTL_FLAG_ABORT; 11243 io->flags |= CTL_FLAG_FAILOVER; 11244 } else { /* This can be only due to DATAMOVE */ 11245 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11246 io->flags &= ~CTL_FLAG_DMA_INPROG; 11247 io->flags |= CTL_FLAG_IO_ACTIVE; 11248 io->port_status = 31340; 11249 ctl_enqueue_isc((union ctl_io *)io); 11250 } 11251 } 11252 /* We are slave */ 11253 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11254 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11255 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11256 io->flags |= CTL_FLAG_FAILOVER; 11257 } else { 11258 ctl_set_busy(&((union ctl_io *)io)-> 11259 scsiio); 11260 ctl_done((union ctl_io *)io); 11261 } 11262 } 11263 } 11264 } else { /* SERIALIZE modes */ 11265 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11266 next_io) { 11267 /* We are master */ 11268 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11269 TAILQ_REMOVE(&lun->blocked_queue, io, 11270 blocked_links); 11271 io->flags &= ~CTL_FLAG_BLOCKED; 11272 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11273 ctl_free_io((union ctl_io *)io); 11274 } 11275 } 11276 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11277 /* We are master */ 11278 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11279 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11280 ctl_free_io((union ctl_io *)io); 11281 } 11282 /* We are slave */ 11283 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11284 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11285 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11286 ctl_set_busy(&((union ctl_io *)io)-> 11287 scsiio); 11288 ctl_done((union ctl_io *)io); 11289 } 11290 } 11291 } 11292 ctl_check_blocked(lun); 11293 } 11294} 11295 11296static int 11297ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11298{ 11299 struct ctl_lun *lun; 11300 const struct ctl_cmd_entry *entry; 11301 uint32_t initidx, targ_lun; 11302 int retval; 11303 11304 retval = 0; 11305 11306 lun = NULL; 11307 11308 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11309 if ((targ_lun < CTL_MAX_LUNS) 11310 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11311 /* 11312 * If the LUN is invalid, pretend that it doesn't exist. 11313 * It will go away as soon as all pending I/O has been 11314 * completed. 11315 */ 11316 mtx_lock(&lun->lun_lock); 11317 if (lun->flags & CTL_LUN_DISABLED) { 11318 mtx_unlock(&lun->lun_lock); 11319 lun = NULL; 11320 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11321 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11322 } else { 11323 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11324 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11325 lun->be_lun; 11326 11327 /* 11328 * Every I/O goes into the OOA queue for a 11329 * particular LUN, and stays there until completion. 11330 */ 11331#ifdef CTL_TIME_IO 11332 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11333 lun->idle_time += getsbinuptime() - 11334 lun->last_busy; 11335 } 11336#endif 11337 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11338 ooa_links); 11339 } 11340 } else { 11341 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11342 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11343 } 11344 11345 /* Get command entry and return error if it is unsuppotyed. */ 11346 entry = ctl_validate_command(ctsio); 11347 if (entry == NULL) { 11348 if (lun) 11349 mtx_unlock(&lun->lun_lock); 11350 return (retval); 11351 } 11352 11353 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11354 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11355 11356 /* 11357 * Check to see whether we can send this command to LUNs that don't 11358 * exist. This should pretty much only be the case for inquiry 11359 * and request sense. Further checks, below, really require having 11360 * a LUN, so we can't really check the command anymore. Just put 11361 * it on the rtr queue. 11362 */ 11363 if (lun == NULL) { 11364 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11365 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11366 ctl_enqueue_rtr((union ctl_io *)ctsio); 11367 return (retval); 11368 } 11369 11370 ctl_set_unsupported_lun(ctsio); 11371 ctl_done((union ctl_io *)ctsio); 11372 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11373 return (retval); 11374 } else { 11375 /* 11376 * Make sure we support this particular command on this LUN. 11377 * e.g., we don't support writes to the control LUN. 11378 */ 11379 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11380 mtx_unlock(&lun->lun_lock); 11381 ctl_set_invalid_opcode(ctsio); 11382 ctl_done((union ctl_io *)ctsio); 11383 return (retval); 11384 } 11385 } 11386 11387 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11388 11389#ifdef CTL_WITH_CA 11390 /* 11391 * If we've got a request sense, it'll clear the contingent 11392 * allegiance condition. Otherwise, if we have a CA condition for 11393 * this initiator, clear it, because it sent down a command other 11394 * than request sense. 11395 */ 11396 if ((ctsio->cdb[0] != REQUEST_SENSE) 11397 && (ctl_is_set(lun->have_ca, initidx))) 11398 ctl_clear_mask(lun->have_ca, initidx); 11399#endif 11400 11401 /* 11402 * If the command has this flag set, it handles its own unit 11403 * attention reporting, we shouldn't do anything. Otherwise we 11404 * check for any pending unit attentions, and send them back to the 11405 * initiator. We only do this when a command initially comes in, 11406 * not when we pull it off the blocked queue. 11407 * 11408 * According to SAM-3, section 5.3.2, the order that things get 11409 * presented back to the host is basically unit attentions caused 11410 * by some sort of reset event, busy status, reservation conflicts 11411 * or task set full, and finally any other status. 11412 * 11413 * One issue here is that some of the unit attentions we report 11414 * don't fall into the "reset" category (e.g. "reported luns data 11415 * has changed"). So reporting it here, before the reservation 11416 * check, may be technically wrong. I guess the only thing to do 11417 * would be to check for and report the reset events here, and then 11418 * check for the other unit attention types after we check for a 11419 * reservation conflict. 11420 * 11421 * XXX KDM need to fix this 11422 */ 11423 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11424 ctl_ua_type ua_type; 11425 11426 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11427 SSD_TYPE_NONE); 11428 if (ua_type != CTL_UA_NONE) { 11429 mtx_unlock(&lun->lun_lock); 11430 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11431 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11432 ctsio->sense_len = SSD_FULL_SIZE; 11433 ctl_done((union ctl_io *)ctsio); 11434 return (retval); 11435 } 11436 } 11437 11438 11439 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11440 mtx_unlock(&lun->lun_lock); 11441 ctl_done((union ctl_io *)ctsio); 11442 return (retval); 11443 } 11444 11445 /* 11446 * XXX CHD this is where we want to send IO to other side if 11447 * this LUN is secondary on this SC. We will need to make a copy 11448 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11449 * the copy we send as FROM_OTHER. 11450 * We also need to stuff the address of the original IO so we can 11451 * find it easily. Something similar will need be done on the other 11452 * side so when we are done we can find the copy. 11453 */ 11454 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11455 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11456 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11457 union ctl_ha_msg msg_info; 11458 int isc_retval; 11459 11460 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11461 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11462 mtx_unlock(&lun->lun_lock); 11463 11464 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11465 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11466 msg_info.hdr.serializing_sc = NULL; 11467 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11468 msg_info.scsi.tag_num = ctsio->tag_num; 11469 msg_info.scsi.tag_type = ctsio->tag_type; 11470 msg_info.scsi.cdb_len = ctsio->cdb_len; 11471 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11472 11473 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11474 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11475 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11476 ctl_set_busy(ctsio); 11477 ctl_done((union ctl_io *)ctsio); 11478 return (retval); 11479 } 11480 return (retval); 11481 } 11482 11483 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11484 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11485 ctl_ooaq, ooa_links))) { 11486 case CTL_ACTION_BLOCK: 11487 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11488 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11489 blocked_links); 11490 mtx_unlock(&lun->lun_lock); 11491 return (retval); 11492 case CTL_ACTION_PASS: 11493 case CTL_ACTION_SKIP: 11494 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11495 mtx_unlock(&lun->lun_lock); 11496 ctl_enqueue_rtr((union ctl_io *)ctsio); 11497 break; 11498 case CTL_ACTION_OVERLAP: 11499 mtx_unlock(&lun->lun_lock); 11500 ctl_set_overlapped_cmd(ctsio); 11501 ctl_done((union ctl_io *)ctsio); 11502 break; 11503 case CTL_ACTION_OVERLAP_TAG: 11504 mtx_unlock(&lun->lun_lock); 11505 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11506 ctl_done((union ctl_io *)ctsio); 11507 break; 11508 case CTL_ACTION_ERROR: 11509 default: 11510 mtx_unlock(&lun->lun_lock); 11511 ctl_set_internal_failure(ctsio, 11512 /*sks_valid*/ 0, 11513 /*retry_count*/ 0); 11514 ctl_done((union ctl_io *)ctsio); 11515 break; 11516 } 11517 return (retval); 11518} 11519 11520const struct ctl_cmd_entry * 11521ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11522{ 11523 const struct ctl_cmd_entry *entry; 11524 int service_action; 11525 11526 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11527 if (sa) 11528 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11529 if (entry->flags & CTL_CMD_FLAG_SA5) { 11530 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11531 entry = &((const struct ctl_cmd_entry *) 11532 entry->execute)[service_action]; 11533 } 11534 return (entry); 11535} 11536 11537const struct ctl_cmd_entry * 11538ctl_validate_command(struct ctl_scsiio *ctsio) 11539{ 11540 const struct ctl_cmd_entry *entry; 11541 int i, sa; 11542 uint8_t diff; 11543 11544 entry = ctl_get_cmd_entry(ctsio, &sa); 11545 if (entry->execute == NULL) { 11546 if (sa) 11547 ctl_set_invalid_field(ctsio, 11548 /*sks_valid*/ 1, 11549 /*command*/ 1, 11550 /*field*/ 1, 11551 /*bit_valid*/ 1, 11552 /*bit*/ 4); 11553 else 11554 ctl_set_invalid_opcode(ctsio); 11555 ctl_done((union ctl_io *)ctsio); 11556 return (NULL); 11557 } 11558 KASSERT(entry->length > 0, 11559 ("Not defined length for command 0x%02x/0x%02x", 11560 ctsio->cdb[0], ctsio->cdb[1])); 11561 for (i = 1; i < entry->length; i++) { 11562 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11563 if (diff == 0) 11564 continue; 11565 ctl_set_invalid_field(ctsio, 11566 /*sks_valid*/ 1, 11567 /*command*/ 1, 11568 /*field*/ i, 11569 /*bit_valid*/ 1, 11570 /*bit*/ fls(diff) - 1); 11571 ctl_done((union ctl_io *)ctsio); 11572 return (NULL); 11573 } 11574 return (entry); 11575} 11576 11577static int 11578ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11579{ 11580 11581 switch (lun_type) { 11582 case T_PROCESSOR: 11583 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11584 return (0); 11585 break; 11586 case T_DIRECT: 11587 if ((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) 11588 return (0); 11589 break; 11590 default: 11591 return (0); 11592 } 11593 return (1); 11594} 11595 11596static int 11597ctl_scsiio(struct ctl_scsiio *ctsio) 11598{ 11599 int retval; 11600 const struct ctl_cmd_entry *entry; 11601 11602 retval = CTL_RETVAL_COMPLETE; 11603 11604 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11605 11606 entry = ctl_get_cmd_entry(ctsio, NULL); 11607 11608 /* 11609 * If this I/O has been aborted, just send it straight to 11610 * ctl_done() without executing it. 11611 */ 11612 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11613 ctl_done((union ctl_io *)ctsio); 11614 goto bailout; 11615 } 11616 11617 /* 11618 * All the checks should have been handled by ctl_scsiio_precheck(). 11619 * We should be clear now to just execute the I/O. 11620 */ 11621 retval = entry->execute(ctsio); 11622 11623bailout: 11624 return (retval); 11625} 11626 11627/* 11628 * Since we only implement one target right now, a bus reset simply resets 11629 * our single target. 11630 */ 11631static int 11632ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11633{ 11634 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11635} 11636 11637static int 11638ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11639 ctl_ua_type ua_type) 11640{ 11641 struct ctl_port *port; 11642 struct ctl_lun *lun; 11643 int retval; 11644 11645 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11646 union ctl_ha_msg msg_info; 11647 11648 msg_info.hdr.nexus = io->io_hdr.nexus; 11649 if (ua_type==CTL_UA_TARG_RESET) 11650 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11651 else 11652 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11653 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11654 msg_info.hdr.original_sc = NULL; 11655 msg_info.hdr.serializing_sc = NULL; 11656 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11657 sizeof(msg_info.task), M_WAITOK); 11658 } 11659 retval = 0; 11660 11661 mtx_lock(&softc->ctl_lock); 11662 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11663 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11664 if (port != NULL && 11665 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11666 continue; 11667 retval += ctl_do_lun_reset(lun, io, ua_type); 11668 } 11669 mtx_unlock(&softc->ctl_lock); 11670 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11671 return (retval); 11672} 11673 11674/* 11675 * The LUN should always be set. The I/O is optional, and is used to 11676 * distinguish between I/Os sent by this initiator, and by other 11677 * initiators. We set unit attention for initiators other than this one. 11678 * SAM-3 is vague on this point. It does say that a unit attention should 11679 * be established for other initiators when a LUN is reset (see section 11680 * 5.7.3), but it doesn't specifically say that the unit attention should 11681 * be established for this particular initiator when a LUN is reset. Here 11682 * is the relevant text, from SAM-3 rev 8: 11683 * 11684 * 5.7.2 When a SCSI initiator port aborts its own tasks 11685 * 11686 * When a SCSI initiator port causes its own task(s) to be aborted, no 11687 * notification that the task(s) have been aborted shall be returned to 11688 * the SCSI initiator port other than the completion response for the 11689 * command or task management function action that caused the task(s) to 11690 * be aborted and notification(s) associated with related effects of the 11691 * action (e.g., a reset unit attention condition). 11692 * 11693 * XXX KDM for now, we're setting unit attention for all initiators. 11694 */ 11695static int 11696ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11697{ 11698 union ctl_io *xio; 11699#if 0 11700 uint32_t initidx; 11701#endif 11702#ifdef CTL_WITH_CA 11703 int i; 11704#endif 11705 11706 mtx_lock(&lun->lun_lock); 11707 /* 11708 * Run through the OOA queue and abort each I/O. 11709 */ 11710 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11711 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11712 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11713 } 11714 11715 /* 11716 * This version sets unit attention for every 11717 */ 11718#if 0 11719 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11720 ctl_est_ua_all(lun, initidx, ua_type); 11721#else 11722 ctl_est_ua_all(lun, -1, ua_type); 11723#endif 11724 11725 /* 11726 * A reset (any kind, really) clears reservations established with 11727 * RESERVE/RELEASE. It does not clear reservations established 11728 * with PERSISTENT RESERVE OUT, but we don't support that at the 11729 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11730 * reservations made with the RESERVE/RELEASE commands, because 11731 * those commands are obsolete in SPC-3. 11732 */ 11733 lun->flags &= ~CTL_LUN_RESERVED; 11734 11735#ifdef CTL_WITH_CA 11736 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11737 ctl_clear_mask(lun->have_ca, i); 11738#endif 11739 mtx_unlock(&lun->lun_lock); 11740 11741 return (0); 11742} 11743 11744static int 11745ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11746{ 11747 struct ctl_lun *lun; 11748 uint32_t targ_lun; 11749 int retval; 11750 11751 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11752 mtx_lock(&softc->ctl_lock); 11753 if ((targ_lun >= CTL_MAX_LUNS) || 11754 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11755 mtx_unlock(&softc->ctl_lock); 11756 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11757 return (1); 11758 } 11759 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11760 mtx_unlock(&softc->ctl_lock); 11761 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11762 11763 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11764 union ctl_ha_msg msg_info; 11765 11766 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11767 msg_info.hdr.nexus = io->io_hdr.nexus; 11768 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11769 msg_info.hdr.original_sc = NULL; 11770 msg_info.hdr.serializing_sc = NULL; 11771 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11772 sizeof(msg_info.task), M_WAITOK); 11773 } 11774 return (retval); 11775} 11776 11777static void 11778ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11779 int other_sc) 11780{ 11781 union ctl_io *xio; 11782 11783 mtx_assert(&lun->lun_lock, MA_OWNED); 11784 11785 /* 11786 * Run through the OOA queue and attempt to find the given I/O. 11787 * The target port, initiator ID, tag type and tag number have to 11788 * match the values that we got from the initiator. If we have an 11789 * untagged command to abort, simply abort the first untagged command 11790 * we come to. We only allow one untagged command at a time of course. 11791 */ 11792 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11793 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11794 11795 if ((targ_port == UINT32_MAX || 11796 targ_port == xio->io_hdr.nexus.targ_port) && 11797 (init_id == UINT32_MAX || 11798 init_id == xio->io_hdr.nexus.initid)) { 11799 if (targ_port != xio->io_hdr.nexus.targ_port || 11800 init_id != xio->io_hdr.nexus.initid) 11801 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11802 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11803 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11804 union ctl_ha_msg msg_info; 11805 11806 msg_info.hdr.nexus = xio->io_hdr.nexus; 11807 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11808 msg_info.task.tag_num = xio->scsiio.tag_num; 11809 msg_info.task.tag_type = xio->scsiio.tag_type; 11810 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11811 msg_info.hdr.original_sc = NULL; 11812 msg_info.hdr.serializing_sc = NULL; 11813 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11814 sizeof(msg_info.task), M_NOWAIT); 11815 } 11816 } 11817 } 11818} 11819 11820static int 11821ctl_abort_task_set(union ctl_io *io) 11822{ 11823 struct ctl_softc *softc = control_softc; 11824 struct ctl_lun *lun; 11825 uint32_t targ_lun; 11826 11827 /* 11828 * Look up the LUN. 11829 */ 11830 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11831 mtx_lock(&softc->ctl_lock); 11832 if ((targ_lun >= CTL_MAX_LUNS) || 11833 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11834 mtx_unlock(&softc->ctl_lock); 11835 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11836 return (1); 11837 } 11838 11839 mtx_lock(&lun->lun_lock); 11840 mtx_unlock(&softc->ctl_lock); 11841 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11842 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11843 io->io_hdr.nexus.initid, 11844 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11845 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11846 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11847 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11848 } 11849 mtx_unlock(&lun->lun_lock); 11850 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11851 return (0); 11852} 11853 11854static int 11855ctl_i_t_nexus_reset(union ctl_io *io) 11856{ 11857 struct ctl_softc *softc = control_softc; 11858 struct ctl_lun *lun; 11859 uint32_t initidx; 11860 11861 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11862 union ctl_ha_msg msg_info; 11863 11864 msg_info.hdr.nexus = io->io_hdr.nexus; 11865 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11866 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11867 msg_info.hdr.original_sc = NULL; 11868 msg_info.hdr.serializing_sc = NULL; 11869 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11870 sizeof(msg_info.task), M_WAITOK); 11871 } 11872 11873 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11874 mtx_lock(&softc->ctl_lock); 11875 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11876 mtx_lock(&lun->lun_lock); 11877 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11878 io->io_hdr.nexus.initid, 1); 11879#ifdef CTL_WITH_CA 11880 ctl_clear_mask(lun->have_ca, initidx); 11881#endif 11882 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11883 lun->flags &= ~CTL_LUN_RESERVED; 11884 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11885 mtx_unlock(&lun->lun_lock); 11886 } 11887 mtx_unlock(&softc->ctl_lock); 11888 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11889 return (0); 11890} 11891 11892static int 11893ctl_abort_task(union ctl_io *io) 11894{ 11895 union ctl_io *xio; 11896 struct ctl_lun *lun; 11897 struct ctl_softc *softc; 11898#if 0 11899 struct sbuf sb; 11900 char printbuf[128]; 11901#endif 11902 int found; 11903 uint32_t targ_lun; 11904 11905 softc = control_softc; 11906 found = 0; 11907 11908 /* 11909 * Look up the LUN. 11910 */ 11911 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11912 mtx_lock(&softc->ctl_lock); 11913 if ((targ_lun >= CTL_MAX_LUNS) || 11914 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11915 mtx_unlock(&softc->ctl_lock); 11916 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11917 return (1); 11918 } 11919 11920#if 0 11921 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11922 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11923#endif 11924 11925 mtx_lock(&lun->lun_lock); 11926 mtx_unlock(&softc->ctl_lock); 11927 /* 11928 * Run through the OOA queue and attempt to find the given I/O. 11929 * The target port, initiator ID, tag type and tag number have to 11930 * match the values that we got from the initiator. If we have an 11931 * untagged command to abort, simply abort the first untagged command 11932 * we come to. We only allow one untagged command at a time of course. 11933 */ 11934 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11935 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11936#if 0 11937 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11938 11939 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11940 lun->lun, xio->scsiio.tag_num, 11941 xio->scsiio.tag_type, 11942 (xio->io_hdr.blocked_links.tqe_prev 11943 == NULL) ? "" : " BLOCKED", 11944 (xio->io_hdr.flags & 11945 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11946 (xio->io_hdr.flags & 11947 CTL_FLAG_ABORT) ? " ABORT" : "", 11948 (xio->io_hdr.flags & 11949 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11950 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11951 sbuf_finish(&sb); 11952 printf("%s\n", sbuf_data(&sb)); 11953#endif 11954 11955 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11956 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11957 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11958 continue; 11959 11960 /* 11961 * If the abort says that the task is untagged, the 11962 * task in the queue must be untagged. Otherwise, 11963 * we just check to see whether the tag numbers 11964 * match. This is because the QLogic firmware 11965 * doesn't pass back the tag type in an abort 11966 * request. 11967 */ 11968#if 0 11969 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11970 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11971 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11972#endif 11973 /* 11974 * XXX KDM we've got problems with FC, because it 11975 * doesn't send down a tag type with aborts. So we 11976 * can only really go by the tag number... 11977 * This may cause problems with parallel SCSI. 11978 * Need to figure that out!! 11979 */ 11980 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11981 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11982 found = 1; 11983 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11984 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11985 union ctl_ha_msg msg_info; 11986 11987 msg_info.hdr.nexus = io->io_hdr.nexus; 11988 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11989 msg_info.task.tag_num = io->taskio.tag_num; 11990 msg_info.task.tag_type = io->taskio.tag_type; 11991 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11992 msg_info.hdr.original_sc = NULL; 11993 msg_info.hdr.serializing_sc = NULL; 11994#if 0 11995 printf("Sent Abort to other side\n"); 11996#endif 11997 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11998 sizeof(msg_info.task), M_NOWAIT); 11999 } 12000#if 0 12001 printf("ctl_abort_task: found I/O to abort\n"); 12002#endif 12003 } 12004 } 12005 mtx_unlock(&lun->lun_lock); 12006 12007 if (found == 0) { 12008 /* 12009 * This isn't really an error. It's entirely possible for 12010 * the abort and command completion to cross on the wire. 12011 * This is more of an informative/diagnostic error. 12012 */ 12013#if 0 12014 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12015 "%u:%u:%u tag %d type %d\n", 12016 io->io_hdr.nexus.initid, 12017 io->io_hdr.nexus.targ_port, 12018 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12019 io->taskio.tag_type); 12020#endif 12021 } 12022 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12023 return (0); 12024} 12025 12026static int 12027ctl_query_task(union ctl_io *io, int task_set) 12028{ 12029 union ctl_io *xio; 12030 struct ctl_lun *lun; 12031 struct ctl_softc *softc; 12032 int found = 0; 12033 uint32_t targ_lun; 12034 12035 softc = control_softc; 12036 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12037 mtx_lock(&softc->ctl_lock); 12038 if ((targ_lun >= CTL_MAX_LUNS) || 12039 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12040 mtx_unlock(&softc->ctl_lock); 12041 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12042 return (1); 12043 } 12044 mtx_lock(&lun->lun_lock); 12045 mtx_unlock(&softc->ctl_lock); 12046 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12047 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12048 12049 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12050 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12051 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12052 continue; 12053 12054 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12055 found = 1; 12056 break; 12057 } 12058 } 12059 mtx_unlock(&lun->lun_lock); 12060 if (found) 12061 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12062 else 12063 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12064 return (0); 12065} 12066 12067static int 12068ctl_query_async_event(union ctl_io *io) 12069{ 12070 struct ctl_lun *lun; 12071 struct ctl_softc *softc; 12072 ctl_ua_type ua; 12073 uint32_t targ_lun, initidx; 12074 12075 softc = control_softc; 12076 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12077 mtx_lock(&softc->ctl_lock); 12078 if ((targ_lun >= CTL_MAX_LUNS) || 12079 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12080 mtx_unlock(&softc->ctl_lock); 12081 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12082 return (1); 12083 } 12084 mtx_lock(&lun->lun_lock); 12085 mtx_unlock(&softc->ctl_lock); 12086 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12087 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12088 mtx_unlock(&lun->lun_lock); 12089 if (ua != CTL_UA_NONE) 12090 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12091 else 12092 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12093 return (0); 12094} 12095 12096static void 12097ctl_run_task(union ctl_io *io) 12098{ 12099 struct ctl_softc *softc = control_softc; 12100 int retval = 1; 12101 12102 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12103 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12104 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12105 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12106 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12107 switch (io->taskio.task_action) { 12108 case CTL_TASK_ABORT_TASK: 12109 retval = ctl_abort_task(io); 12110 break; 12111 case CTL_TASK_ABORT_TASK_SET: 12112 case CTL_TASK_CLEAR_TASK_SET: 12113 retval = ctl_abort_task_set(io); 12114 break; 12115 case CTL_TASK_CLEAR_ACA: 12116 break; 12117 case CTL_TASK_I_T_NEXUS_RESET: 12118 retval = ctl_i_t_nexus_reset(io); 12119 break; 12120 case CTL_TASK_LUN_RESET: 12121 retval = ctl_lun_reset(softc, io); 12122 break; 12123 case CTL_TASK_TARGET_RESET: 12124 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12125 break; 12126 case CTL_TASK_BUS_RESET: 12127 retval = ctl_bus_reset(softc, io); 12128 break; 12129 case CTL_TASK_PORT_LOGIN: 12130 break; 12131 case CTL_TASK_PORT_LOGOUT: 12132 break; 12133 case CTL_TASK_QUERY_TASK: 12134 retval = ctl_query_task(io, 0); 12135 break; 12136 case CTL_TASK_QUERY_TASK_SET: 12137 retval = ctl_query_task(io, 1); 12138 break; 12139 case CTL_TASK_QUERY_ASYNC_EVENT: 12140 retval = ctl_query_async_event(io); 12141 break; 12142 default: 12143 printf("%s: got unknown task management event %d\n", 12144 __func__, io->taskio.task_action); 12145 break; 12146 } 12147 if (retval == 0) 12148 io->io_hdr.status = CTL_SUCCESS; 12149 else 12150 io->io_hdr.status = CTL_ERROR; 12151 ctl_done(io); 12152} 12153 12154/* 12155 * For HA operation. Handle commands that come in from the other 12156 * controller. 12157 */ 12158static void 12159ctl_handle_isc(union ctl_io *io) 12160{ 12161 int free_io; 12162 struct ctl_lun *lun; 12163 struct ctl_softc *softc; 12164 uint32_t targ_lun; 12165 12166 softc = control_softc; 12167 12168 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12169 lun = softc->ctl_luns[targ_lun]; 12170 12171 switch (io->io_hdr.msg_type) { 12172 case CTL_MSG_SERIALIZE: 12173 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12174 break; 12175 case CTL_MSG_R2R: { 12176 const struct ctl_cmd_entry *entry; 12177 12178 /* 12179 * This is only used in SER_ONLY mode. 12180 */ 12181 free_io = 0; 12182 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12183 mtx_lock(&lun->lun_lock); 12184 if (ctl_scsiio_lun_check(lun, 12185 entry, (struct ctl_scsiio *)io) != 0) { 12186 mtx_unlock(&lun->lun_lock); 12187 ctl_done(io); 12188 break; 12189 } 12190 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12191 mtx_unlock(&lun->lun_lock); 12192 ctl_enqueue_rtr(io); 12193 break; 12194 } 12195 case CTL_MSG_FINISH_IO: 12196 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12197 free_io = 0; 12198 ctl_done(io); 12199 } else { 12200 free_io = 1; 12201 mtx_lock(&lun->lun_lock); 12202 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12203 ooa_links); 12204 ctl_check_blocked(lun); 12205 mtx_unlock(&lun->lun_lock); 12206 } 12207 break; 12208 case CTL_MSG_PERS_ACTION: 12209 ctl_hndl_per_res_out_on_other_sc( 12210 (union ctl_ha_msg *)&io->presio.pr_msg); 12211 free_io = 1; 12212 break; 12213 case CTL_MSG_BAD_JUJU: 12214 free_io = 0; 12215 ctl_done(io); 12216 break; 12217 case CTL_MSG_DATAMOVE: 12218 /* Only used in XFER mode */ 12219 free_io = 0; 12220 ctl_datamove_remote(io); 12221 break; 12222 case CTL_MSG_DATAMOVE_DONE: 12223 /* Only used in XFER mode */ 12224 free_io = 0; 12225 io->scsiio.be_move_done(io); 12226 break; 12227 case CTL_MSG_FAILOVER: 12228 mtx_lock(&lun->lun_lock); 12229 ctl_failover_lun(lun); 12230 mtx_unlock(&lun->lun_lock); 12231 free_io = 1; 12232 break; 12233 default: 12234 free_io = 1; 12235 printf("%s: Invalid message type %d\n", 12236 __func__, io->io_hdr.msg_type); 12237 break; 12238 } 12239 if (free_io) 12240 ctl_free_io(io); 12241 12242} 12243 12244 12245/* 12246 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12247 * there is no match. 12248 */ 12249static ctl_lun_error_pattern 12250ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12251{ 12252 const struct ctl_cmd_entry *entry; 12253 ctl_lun_error_pattern filtered_pattern, pattern; 12254 12255 pattern = desc->error_pattern; 12256 12257 /* 12258 * XXX KDM we need more data passed into this function to match a 12259 * custom pattern, and we actually need to implement custom pattern 12260 * matching. 12261 */ 12262 if (pattern & CTL_LUN_PAT_CMD) 12263 return (CTL_LUN_PAT_CMD); 12264 12265 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12266 return (CTL_LUN_PAT_ANY); 12267 12268 entry = ctl_get_cmd_entry(ctsio, NULL); 12269 12270 filtered_pattern = entry->pattern & pattern; 12271 12272 /* 12273 * If the user requested specific flags in the pattern (e.g. 12274 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12275 * flags. 12276 * 12277 * If the user did not specify any flags, it doesn't matter whether 12278 * or not the command supports the flags. 12279 */ 12280 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12281 (pattern & ~CTL_LUN_PAT_MASK)) 12282 return (CTL_LUN_PAT_NONE); 12283 12284 /* 12285 * If the user asked for a range check, see if the requested LBA 12286 * range overlaps with this command's LBA range. 12287 */ 12288 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12289 uint64_t lba1; 12290 uint64_t len1; 12291 ctl_action action; 12292 int retval; 12293 12294 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12295 if (retval != 0) 12296 return (CTL_LUN_PAT_NONE); 12297 12298 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12299 desc->lba_range.len, FALSE); 12300 /* 12301 * A "pass" means that the LBA ranges don't overlap, so 12302 * this doesn't match the user's range criteria. 12303 */ 12304 if (action == CTL_ACTION_PASS) 12305 return (CTL_LUN_PAT_NONE); 12306 } 12307 12308 return (filtered_pattern); 12309} 12310 12311static void 12312ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12313{ 12314 struct ctl_error_desc *desc, *desc2; 12315 12316 mtx_assert(&lun->lun_lock, MA_OWNED); 12317 12318 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12319 ctl_lun_error_pattern pattern; 12320 /* 12321 * Check to see whether this particular command matches 12322 * the pattern in the descriptor. 12323 */ 12324 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12325 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12326 continue; 12327 12328 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12329 case CTL_LUN_INJ_ABORTED: 12330 ctl_set_aborted(&io->scsiio); 12331 break; 12332 case CTL_LUN_INJ_MEDIUM_ERR: 12333 ctl_set_medium_error(&io->scsiio, 12334 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12335 CTL_FLAG_DATA_OUT); 12336 break; 12337 case CTL_LUN_INJ_UA: 12338 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12339 * OCCURRED */ 12340 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12341 break; 12342 case CTL_LUN_INJ_CUSTOM: 12343 /* 12344 * We're assuming the user knows what he is doing. 12345 * Just copy the sense information without doing 12346 * checks. 12347 */ 12348 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12349 MIN(sizeof(desc->custom_sense), 12350 sizeof(io->scsiio.sense_data))); 12351 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12352 io->scsiio.sense_len = SSD_FULL_SIZE; 12353 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12354 break; 12355 case CTL_LUN_INJ_NONE: 12356 default: 12357 /* 12358 * If this is an error injection type we don't know 12359 * about, clear the continuous flag (if it is set) 12360 * so it will get deleted below. 12361 */ 12362 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12363 break; 12364 } 12365 /* 12366 * By default, each error injection action is a one-shot 12367 */ 12368 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12369 continue; 12370 12371 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12372 12373 free(desc, M_CTL); 12374 } 12375} 12376 12377#ifdef CTL_IO_DELAY 12378static void 12379ctl_datamove_timer_wakeup(void *arg) 12380{ 12381 union ctl_io *io; 12382 12383 io = (union ctl_io *)arg; 12384 12385 ctl_datamove(io); 12386} 12387#endif /* CTL_IO_DELAY */ 12388 12389void 12390ctl_datamove(union ctl_io *io) 12391{ 12392 struct ctl_lun *lun; 12393 void (*fe_datamove)(union ctl_io *io); 12394 12395 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12396 12397 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12398 12399 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12400#ifdef CTL_TIME_IO 12401 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12402 char str[256]; 12403 char path_str[64]; 12404 struct sbuf sb; 12405 12406 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12407 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12408 12409 sbuf_cat(&sb, path_str); 12410 switch (io->io_hdr.io_type) { 12411 case CTL_IO_SCSI: 12412 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12413 sbuf_printf(&sb, "\n"); 12414 sbuf_cat(&sb, path_str); 12415 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12416 io->scsiio.tag_num, io->scsiio.tag_type); 12417 break; 12418 case CTL_IO_TASK: 12419 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12420 "Tag Type: %d\n", io->taskio.task_action, 12421 io->taskio.tag_num, io->taskio.tag_type); 12422 break; 12423 default: 12424 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12425 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12426 break; 12427 } 12428 sbuf_cat(&sb, path_str); 12429 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12430 (intmax_t)time_uptime - io->io_hdr.start_time); 12431 sbuf_finish(&sb); 12432 printf("%s", sbuf_data(&sb)); 12433 } 12434#endif /* CTL_TIME_IO */ 12435 12436#ifdef CTL_IO_DELAY 12437 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12438 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12439 } else { 12440 if ((lun != NULL) 12441 && (lun->delay_info.datamove_delay > 0)) { 12442 12443 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12444 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12445 callout_reset(&io->io_hdr.delay_callout, 12446 lun->delay_info.datamove_delay * hz, 12447 ctl_datamove_timer_wakeup, io); 12448 if (lun->delay_info.datamove_type == 12449 CTL_DELAY_TYPE_ONESHOT) 12450 lun->delay_info.datamove_delay = 0; 12451 return; 12452 } 12453 } 12454#endif 12455 12456 /* 12457 * This command has been aborted. Set the port status, so we fail 12458 * the data move. 12459 */ 12460 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12461 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12462 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12463 io->io_hdr.nexus.targ_port, 12464 io->io_hdr.nexus.targ_lun); 12465 io->io_hdr.port_status = 31337; 12466 /* 12467 * Note that the backend, in this case, will get the 12468 * callback in its context. In other cases it may get 12469 * called in the frontend's interrupt thread context. 12470 */ 12471 io->scsiio.be_move_done(io); 12472 return; 12473 } 12474 12475 /* Don't confuse frontend with zero length data move. */ 12476 if (io->scsiio.kern_data_len == 0) { 12477 io->scsiio.be_move_done(io); 12478 return; 12479 } 12480 12481 /* 12482 * If we're in XFER mode and this I/O is from the other shelf 12483 * controller, we need to send the DMA to the other side to 12484 * actually transfer the data to/from the host. In serialize only 12485 * mode the transfer happens below CTL and ctl_datamove() is only 12486 * called on the machine that originally received the I/O. 12487 */ 12488 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12489 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12490 union ctl_ha_msg msg; 12491 uint32_t sg_entries_sent; 12492 int do_sg_copy; 12493 int i; 12494 12495 memset(&msg, 0, sizeof(msg)); 12496 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12497 msg.hdr.original_sc = io->io_hdr.original_sc; 12498 msg.hdr.serializing_sc = io; 12499 msg.hdr.nexus = io->io_hdr.nexus; 12500 msg.hdr.status = io->io_hdr.status; 12501 msg.dt.flags = io->io_hdr.flags; 12502 /* 12503 * We convert everything into a S/G list here. We can't 12504 * pass by reference, only by value between controllers. 12505 * So we can't pass a pointer to the S/G list, only as many 12506 * S/G entries as we can fit in here. If it's possible for 12507 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12508 * then we need to break this up into multiple transfers. 12509 */ 12510 if (io->scsiio.kern_sg_entries == 0) { 12511 msg.dt.kern_sg_entries = 1; 12512#if 0 12513 /* 12514 * Convert to a physical address if this is a 12515 * virtual address. 12516 */ 12517 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12518 msg.dt.sg_list[0].addr = 12519 io->scsiio.kern_data_ptr; 12520 } else { 12521 /* 12522 * XXX KDM use busdma here! 12523 */ 12524 msg.dt.sg_list[0].addr = (void *) 12525 vtophys(io->scsiio.kern_data_ptr); 12526 } 12527#else 12528 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12529 ("HA does not support BUS_ADDR")); 12530 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12531#endif 12532 12533 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12534 do_sg_copy = 0; 12535 } else { 12536 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12537 do_sg_copy = 1; 12538 } 12539 12540 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12541 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12542 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12543 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12544 msg.dt.sg_sequence = 0; 12545 12546 /* 12547 * Loop until we've sent all of the S/G entries. On the 12548 * other end, we'll recompose these S/G entries into one 12549 * contiguous list before passing it to the 12550 */ 12551 for (sg_entries_sent = 0; sg_entries_sent < 12552 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12553 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12554 sizeof(msg.dt.sg_list[0])), 12555 msg.dt.kern_sg_entries - sg_entries_sent); 12556 12557 if (do_sg_copy != 0) { 12558 struct ctl_sg_entry *sgl; 12559 int j; 12560 12561 sgl = (struct ctl_sg_entry *) 12562 io->scsiio.kern_data_ptr; 12563 /* 12564 * If this is in cached memory, flush the cache 12565 * before we send the DMA request to the other 12566 * controller. We want to do this in either 12567 * the * read or the write case. The read 12568 * case is straightforward. In the write 12569 * case, we want to make sure nothing is 12570 * in the local cache that could overwrite 12571 * the DMAed data. 12572 */ 12573 12574 for (i = sg_entries_sent, j = 0; 12575 i < msg.dt.cur_sg_entries; i++, j++) { 12576#if 0 12577 if ((io->io_hdr.flags & 12578 CTL_FLAG_BUS_ADDR) == 0) { 12579 /* 12580 * XXX KDM use busdma. 12581 */ 12582 msg.dt.sg_list[j].addr =(void *) 12583 vtophys(sgl[i].addr); 12584 } else { 12585 msg.dt.sg_list[j].addr = 12586 sgl[i].addr; 12587 } 12588#else 12589 KASSERT((io->io_hdr.flags & 12590 CTL_FLAG_BUS_ADDR) == 0, 12591 ("HA does not support BUS_ADDR")); 12592 msg.dt.sg_list[j].addr = sgl[i].addr; 12593#endif 12594 msg.dt.sg_list[j].len = sgl[i].len; 12595 } 12596 } 12597 12598 sg_entries_sent += msg.dt.cur_sg_entries; 12599 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12600 msg.dt.sg_last = 1; 12601 else 12602 msg.dt.sg_last = 0; 12603 12604 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12605 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12606 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12607 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12608 io->io_hdr.port_status = 31341; 12609 io->scsiio.be_move_done(io); 12610 return; 12611 } 12612 12613 msg.dt.sent_sg_entries = sg_entries_sent; 12614 } 12615 12616 /* 12617 * Officially handover the request from us to peer. 12618 * If failover has just happened, then we must return error. 12619 * If failover happen just after, then it is not our problem. 12620 */ 12621 if (lun) 12622 mtx_lock(&lun->lun_lock); 12623 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12624 if (lun) 12625 mtx_unlock(&lun->lun_lock); 12626 io->io_hdr.port_status = 31342; 12627 io->scsiio.be_move_done(io); 12628 return; 12629 } 12630 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12631 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 12632 if (lun) 12633 mtx_unlock(&lun->lun_lock); 12634 } else { 12635 12636 /* 12637 * Lookup the fe_datamove() function for this particular 12638 * front end. 12639 */ 12640 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12641 12642 fe_datamove(io); 12643 } 12644} 12645 12646static void 12647ctl_send_datamove_done(union ctl_io *io, int have_lock) 12648{ 12649 union ctl_ha_msg msg; 12650 12651 memset(&msg, 0, sizeof(msg)); 12652 12653 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12654 msg.hdr.original_sc = io; 12655 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12656 msg.hdr.nexus = io->io_hdr.nexus; 12657 msg.hdr.status = io->io_hdr.status; 12658 msg.scsi.tag_num = io->scsiio.tag_num; 12659 msg.scsi.tag_type = io->scsiio.tag_type; 12660 msg.scsi.scsi_status = io->scsiio.scsi_status; 12661 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12662 io->scsiio.sense_len); 12663 msg.scsi.sense_len = io->scsiio.sense_len; 12664 msg.scsi.sense_residual = io->scsiio.sense_residual; 12665 msg.scsi.fetd_status = io->io_hdr.port_status; 12666 msg.scsi.residual = io->scsiio.residual; 12667 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12668 12669 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12670 ctl_failover_io(io, /*have_lock*/ have_lock); 12671 return; 12672 } 12673 12674 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12675 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12676 msg.scsi.sense_len, M_WAITOK); 12677} 12678 12679/* 12680 * The DMA to the remote side is done, now we need to tell the other side 12681 * we're done so it can continue with its data movement. 12682 */ 12683static void 12684ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12685{ 12686 union ctl_io *io; 12687 int i; 12688 12689 io = rq->context; 12690 12691 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12692 printf("%s: ISC DMA write failed with error %d", __func__, 12693 rq->ret); 12694 ctl_set_internal_failure(&io->scsiio, 12695 /*sks_valid*/ 1, 12696 /*retry_count*/ rq->ret); 12697 } 12698 12699 ctl_dt_req_free(rq); 12700 12701 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12702 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12703 free(io->io_hdr.remote_sglist, M_CTL); 12704 io->io_hdr.remote_sglist = NULL; 12705 io->io_hdr.local_sglist = NULL; 12706 12707 /* 12708 * The data is in local and remote memory, so now we need to send 12709 * status (good or back) back to the other side. 12710 */ 12711 ctl_send_datamove_done(io, /*have_lock*/ 0); 12712} 12713 12714/* 12715 * We've moved the data from the host/controller into local memory. Now we 12716 * need to push it over to the remote controller's memory. 12717 */ 12718static int 12719ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12720{ 12721 int retval; 12722 12723 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12724 ctl_datamove_remote_write_cb); 12725 return (retval); 12726} 12727 12728static void 12729ctl_datamove_remote_write(union ctl_io *io) 12730{ 12731 int retval; 12732 void (*fe_datamove)(union ctl_io *io); 12733 12734 /* 12735 * - Get the data from the host/HBA into local memory. 12736 * - DMA memory from the local controller to the remote controller. 12737 * - Send status back to the remote controller. 12738 */ 12739 12740 retval = ctl_datamove_remote_sgl_setup(io); 12741 if (retval != 0) 12742 return; 12743 12744 /* Switch the pointer over so the FETD knows what to do */ 12745 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12746 12747 /* 12748 * Use a custom move done callback, since we need to send completion 12749 * back to the other controller, not to the backend on this side. 12750 */ 12751 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12752 12753 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12754 fe_datamove(io); 12755} 12756 12757static int 12758ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12759{ 12760#if 0 12761 char str[256]; 12762 char path_str[64]; 12763 struct sbuf sb; 12764#endif 12765 int i; 12766 12767 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12768 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12769 free(io->io_hdr.remote_sglist, M_CTL); 12770 io->io_hdr.remote_sglist = NULL; 12771 io->io_hdr.local_sglist = NULL; 12772 12773#if 0 12774 scsi_path_string(io, path_str, sizeof(path_str)); 12775 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12776 sbuf_cat(&sb, path_str); 12777 scsi_command_string(&io->scsiio, NULL, &sb); 12778 sbuf_printf(&sb, "\n"); 12779 sbuf_cat(&sb, path_str); 12780 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12781 io->scsiio.tag_num, io->scsiio.tag_type); 12782 sbuf_cat(&sb, path_str); 12783 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12784 io->io_hdr.flags, io->io_hdr.status); 12785 sbuf_finish(&sb); 12786 printk("%s", sbuf_data(&sb)); 12787#endif 12788 12789 12790 /* 12791 * The read is done, now we need to send status (good or bad) back 12792 * to the other side. 12793 */ 12794 ctl_send_datamove_done(io, /*have_lock*/ 0); 12795 12796 return (0); 12797} 12798 12799static void 12800ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12801{ 12802 union ctl_io *io; 12803 void (*fe_datamove)(union ctl_io *io); 12804 12805 io = rq->context; 12806 12807 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12808 printf("%s: ISC DMA read failed with error %d\n", __func__, 12809 rq->ret); 12810 ctl_set_internal_failure(&io->scsiio, 12811 /*sks_valid*/ 1, 12812 /*retry_count*/ rq->ret); 12813 } 12814 12815 ctl_dt_req_free(rq); 12816 12817 /* Switch the pointer over so the FETD knows what to do */ 12818 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12819 12820 /* 12821 * Use a custom move done callback, since we need to send completion 12822 * back to the other controller, not to the backend on this side. 12823 */ 12824 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12825 12826 /* XXX KDM add checks like the ones in ctl_datamove? */ 12827 12828 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12829 fe_datamove(io); 12830} 12831 12832static int 12833ctl_datamove_remote_sgl_setup(union ctl_io *io) 12834{ 12835 struct ctl_sg_entry *local_sglist; 12836 struct ctl_softc *softc; 12837 uint32_t len_to_go; 12838 int retval; 12839 int i; 12840 12841 retval = 0; 12842 softc = control_softc; 12843 local_sglist = io->io_hdr.local_sglist; 12844 len_to_go = io->scsiio.kern_data_len; 12845 12846 /* 12847 * The difficult thing here is that the size of the various 12848 * S/G segments may be different than the size from the 12849 * remote controller. That'll make it harder when DMAing 12850 * the data back to the other side. 12851 */ 12852 for (i = 0; len_to_go > 0; i++) { 12853 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12854 local_sglist[i].addr = 12855 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12856 12857 len_to_go -= local_sglist[i].len; 12858 } 12859 /* 12860 * Reset the number of S/G entries accordingly. The original 12861 * number of S/G entries is available in rem_sg_entries. 12862 */ 12863 io->scsiio.kern_sg_entries = i; 12864 12865#if 0 12866 printf("%s: kern_sg_entries = %d\n", __func__, 12867 io->scsiio.kern_sg_entries); 12868 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12869 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12870 local_sglist[i].addr, local_sglist[i].len); 12871#endif 12872 12873 return (retval); 12874} 12875 12876static int 12877ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12878 ctl_ha_dt_cb callback) 12879{ 12880 struct ctl_ha_dt_req *rq; 12881 struct ctl_sg_entry *remote_sglist, *local_sglist; 12882 uint32_t local_used, remote_used, total_used; 12883 int i, j, isc_ret; 12884 12885 rq = ctl_dt_req_alloc(); 12886 12887 /* 12888 * If we failed to allocate the request, and if the DMA didn't fail 12889 * anyway, set busy status. This is just a resource allocation 12890 * failure. 12891 */ 12892 if ((rq == NULL) 12893 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12894 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12895 ctl_set_busy(&io->scsiio); 12896 12897 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12898 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12899 12900 if (rq != NULL) 12901 ctl_dt_req_free(rq); 12902 12903 /* 12904 * The data move failed. We need to return status back 12905 * to the other controller. No point in trying to DMA 12906 * data to the remote controller. 12907 */ 12908 12909 ctl_send_datamove_done(io, /*have_lock*/ 0); 12910 12911 return (1); 12912 } 12913 12914 local_sglist = io->io_hdr.local_sglist; 12915 remote_sglist = io->io_hdr.remote_sglist; 12916 local_used = 0; 12917 remote_used = 0; 12918 total_used = 0; 12919 12920 /* 12921 * Pull/push the data over the wire from/to the other controller. 12922 * This takes into account the possibility that the local and 12923 * remote sglists may not be identical in terms of the size of 12924 * the elements and the number of elements. 12925 * 12926 * One fundamental assumption here is that the length allocated for 12927 * both the local and remote sglists is identical. Otherwise, we've 12928 * essentially got a coding error of some sort. 12929 */ 12930 isc_ret = CTL_HA_STATUS_SUCCESS; 12931 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12932 uint32_t cur_len; 12933 uint8_t *tmp_ptr; 12934 12935 rq->command = command; 12936 rq->context = io; 12937 12938 /* 12939 * Both pointers should be aligned. But it is possible 12940 * that the allocation length is not. They should both 12941 * also have enough slack left over at the end, though, 12942 * to round up to the next 8 byte boundary. 12943 */ 12944 cur_len = MIN(local_sglist[i].len - local_used, 12945 remote_sglist[j].len - remote_used); 12946 rq->size = cur_len; 12947 12948 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12949 tmp_ptr += local_used; 12950 12951#if 0 12952 /* Use physical addresses when talking to ISC hardware */ 12953 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12954 /* XXX KDM use busdma */ 12955 rq->local = vtophys(tmp_ptr); 12956 } else 12957 rq->local = tmp_ptr; 12958#else 12959 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12960 ("HA does not support BUS_ADDR")); 12961 rq->local = tmp_ptr; 12962#endif 12963 12964 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12965 tmp_ptr += remote_used; 12966 rq->remote = tmp_ptr; 12967 12968 rq->callback = NULL; 12969 12970 local_used += cur_len; 12971 if (local_used >= local_sglist[i].len) { 12972 i++; 12973 local_used = 0; 12974 } 12975 12976 remote_used += cur_len; 12977 if (remote_used >= remote_sglist[j].len) { 12978 j++; 12979 remote_used = 0; 12980 } 12981 total_used += cur_len; 12982 12983 if (total_used >= io->scsiio.kern_data_len) 12984 rq->callback = callback; 12985 12986#if 0 12987 printf("%s: %s: local %p remote %p size %d\n", __func__, 12988 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12989 rq->local, rq->remote, rq->size); 12990#endif 12991 12992 isc_ret = ctl_dt_single(rq); 12993 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12994 break; 12995 } 12996 if (isc_ret != CTL_HA_STATUS_WAIT) { 12997 rq->ret = isc_ret; 12998 callback(rq); 12999 } 13000 13001 return (0); 13002} 13003 13004static void 13005ctl_datamove_remote_read(union ctl_io *io) 13006{ 13007 int retval; 13008 int i; 13009 13010 /* 13011 * This will send an error to the other controller in the case of a 13012 * failure. 13013 */ 13014 retval = ctl_datamove_remote_sgl_setup(io); 13015 if (retval != 0) 13016 return; 13017 13018 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13019 ctl_datamove_remote_read_cb); 13020 if (retval != 0) { 13021 /* 13022 * Make sure we free memory if there was an error.. The 13023 * ctl_datamove_remote_xfer() function will send the 13024 * datamove done message, or call the callback with an 13025 * error if there is a problem. 13026 */ 13027 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13028 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13029 free(io->io_hdr.remote_sglist, M_CTL); 13030 io->io_hdr.remote_sglist = NULL; 13031 io->io_hdr.local_sglist = NULL; 13032 } 13033} 13034 13035/* 13036 * Process a datamove request from the other controller. This is used for 13037 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13038 * first. Once that is complete, the data gets DMAed into the remote 13039 * controller's memory. For reads, we DMA from the remote controller's 13040 * memory into our memory first, and then move it out to the FETD. 13041 */ 13042static void 13043ctl_datamove_remote(union ctl_io *io) 13044{ 13045 13046 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13047 13048 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13049 ctl_failover_io(io, /*have_lock*/ 0); 13050 return; 13051 } 13052 13053 /* 13054 * Note that we look for an aborted I/O here, but don't do some of 13055 * the other checks that ctl_datamove() normally does. 13056 * We don't need to run the datamove delay code, since that should 13057 * have been done if need be on the other controller. 13058 */ 13059 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13060 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13061 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13062 io->io_hdr.nexus.targ_port, 13063 io->io_hdr.nexus.targ_lun); 13064 io->io_hdr.port_status = 31338; 13065 ctl_send_datamove_done(io, /*have_lock*/ 0); 13066 return; 13067 } 13068 13069 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13070 ctl_datamove_remote_write(io); 13071 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13072 ctl_datamove_remote_read(io); 13073 else { 13074 io->io_hdr.port_status = 31339; 13075 ctl_send_datamove_done(io, /*have_lock*/ 0); 13076 } 13077} 13078 13079static int 13080ctl_process_done(union ctl_io *io) 13081{ 13082 struct ctl_lun *lun; 13083 struct ctl_softc *softc = control_softc; 13084 void (*fe_done)(union ctl_io *io); 13085 union ctl_ha_msg msg; 13086 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13087 13088 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13089 13090 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 13091 fe_done = softc->ctl_ports[targ_port]->fe_done; 13092 else 13093 fe_done = NULL; 13094 13095#ifdef CTL_TIME_IO 13096 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13097 char str[256]; 13098 char path_str[64]; 13099 struct sbuf sb; 13100 13101 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13102 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13103 13104 sbuf_cat(&sb, path_str); 13105 switch (io->io_hdr.io_type) { 13106 case CTL_IO_SCSI: 13107 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13108 sbuf_printf(&sb, "\n"); 13109 sbuf_cat(&sb, path_str); 13110 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13111 io->scsiio.tag_num, io->scsiio.tag_type); 13112 break; 13113 case CTL_IO_TASK: 13114 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13115 "Tag Type: %d\n", io->taskio.task_action, 13116 io->taskio.tag_num, io->taskio.tag_type); 13117 break; 13118 default: 13119 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13120 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13121 break; 13122 } 13123 sbuf_cat(&sb, path_str); 13124 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13125 (intmax_t)time_uptime - io->io_hdr.start_time); 13126 sbuf_finish(&sb); 13127 printf("%s", sbuf_data(&sb)); 13128 } 13129#endif /* CTL_TIME_IO */ 13130 13131 switch (io->io_hdr.io_type) { 13132 case CTL_IO_SCSI: 13133 break; 13134 case CTL_IO_TASK: 13135 if (ctl_debug & CTL_DEBUG_INFO) 13136 ctl_io_error_print(io, NULL); 13137 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13138 ctl_free_io(io); 13139 else 13140 fe_done(io); 13141 return (CTL_RETVAL_COMPLETE); 13142 default: 13143 panic("ctl_process_done: invalid io type %d\n", 13144 io->io_hdr.io_type); 13145 break; /* NOTREACHED */ 13146 } 13147 13148 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13149 if (lun == NULL) { 13150 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13151 io->io_hdr.nexus.targ_mapped_lun)); 13152 goto bailout; 13153 } 13154 13155 mtx_lock(&lun->lun_lock); 13156 13157 /* 13158 * Check to see if we have any errors to inject here. We only 13159 * inject errors for commands that don't already have errors set. 13160 */ 13161 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13162 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13163 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13164 ctl_inject_error(lun, io); 13165 13166 /* 13167 * XXX KDM how do we treat commands that aren't completed 13168 * successfully? 13169 * 13170 * XXX KDM should we also track I/O latency? 13171 */ 13172 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13173 io->io_hdr.io_type == CTL_IO_SCSI) { 13174#ifdef CTL_TIME_IO 13175 struct bintime cur_bt; 13176#endif 13177 int type; 13178 13179 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13180 CTL_FLAG_DATA_IN) 13181 type = CTL_STATS_READ; 13182 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13183 CTL_FLAG_DATA_OUT) 13184 type = CTL_STATS_WRITE; 13185 else 13186 type = CTL_STATS_NO_IO; 13187 13188 lun->stats.ports[targ_port].bytes[type] += 13189 io->scsiio.kern_total_len; 13190 lun->stats.ports[targ_port].operations[type]++; 13191#ifdef CTL_TIME_IO 13192 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13193 &io->io_hdr.dma_bt); 13194 lun->stats.ports[targ_port].num_dmas[type] += 13195 io->io_hdr.num_dmas; 13196 getbintime(&cur_bt); 13197 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13198 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13199#endif 13200 } 13201 13202 /* 13203 * Remove this from the OOA queue. 13204 */ 13205 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13206#ifdef CTL_TIME_IO 13207 if (TAILQ_EMPTY(&lun->ooa_queue)) 13208 lun->last_busy = getsbinuptime(); 13209#endif 13210 13211 /* 13212 * Run through the blocked queue on this LUN and see if anything 13213 * has become unblocked, now that this transaction is done. 13214 */ 13215 ctl_check_blocked(lun); 13216 13217 /* 13218 * If the LUN has been invalidated, free it if there is nothing 13219 * left on its OOA queue. 13220 */ 13221 if ((lun->flags & CTL_LUN_INVALID) 13222 && TAILQ_EMPTY(&lun->ooa_queue)) { 13223 mtx_unlock(&lun->lun_lock); 13224 mtx_lock(&softc->ctl_lock); 13225 ctl_free_lun(lun); 13226 mtx_unlock(&softc->ctl_lock); 13227 } else 13228 mtx_unlock(&lun->lun_lock); 13229 13230bailout: 13231 13232 /* 13233 * If this command has been aborted, make sure we set the status 13234 * properly. The FETD is responsible for freeing the I/O and doing 13235 * whatever it needs to do to clean up its state. 13236 */ 13237 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13238 ctl_set_task_aborted(&io->scsiio); 13239 13240 /* 13241 * If enabled, print command error status. 13242 */ 13243 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13244 (ctl_debug & CTL_DEBUG_INFO) != 0) 13245 ctl_io_error_print(io, NULL); 13246 13247 /* 13248 * Tell the FETD or the other shelf controller we're done with this 13249 * command. Note that only SCSI commands get to this point. Task 13250 * management commands are completed above. 13251 */ 13252 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13253 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13254 memset(&msg, 0, sizeof(msg)); 13255 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13256 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13257 msg.hdr.nexus = io->io_hdr.nexus; 13258 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13259 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13260 M_WAITOK); 13261 } 13262 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13263 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13264 memset(&msg, 0, sizeof(msg)); 13265 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13266 msg.hdr.original_sc = io->io_hdr.original_sc; 13267 msg.hdr.nexus = io->io_hdr.nexus; 13268 msg.hdr.status = io->io_hdr.status; 13269 msg.scsi.scsi_status = io->scsiio.scsi_status; 13270 msg.scsi.tag_num = io->scsiio.tag_num; 13271 msg.scsi.tag_type = io->scsiio.tag_type; 13272 msg.scsi.sense_len = io->scsiio.sense_len; 13273 msg.scsi.sense_residual = io->scsiio.sense_residual; 13274 msg.scsi.residual = io->scsiio.residual; 13275 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13276 io->scsiio.sense_len); 13277 13278 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13279 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 13280 msg.scsi.sense_len, M_WAITOK); 13281 ctl_free_io(io); 13282 } else 13283 fe_done(io); 13284 13285 return (CTL_RETVAL_COMPLETE); 13286} 13287 13288#ifdef CTL_WITH_CA 13289/* 13290 * Front end should call this if it doesn't do autosense. When the request 13291 * sense comes back in from the initiator, we'll dequeue this and send it. 13292 */ 13293int 13294ctl_queue_sense(union ctl_io *io) 13295{ 13296 struct ctl_lun *lun; 13297 struct ctl_port *port; 13298 struct ctl_softc *softc; 13299 uint32_t initidx, targ_lun; 13300 13301 softc = control_softc; 13302 13303 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13304 13305 /* 13306 * LUN lookup will likely move to the ctl_work_thread() once we 13307 * have our new queueing infrastructure (that doesn't put things on 13308 * a per-LUN queue initially). That is so that we can handle 13309 * things like an INQUIRY to a LUN that we don't have enabled. We 13310 * can't deal with that right now. 13311 */ 13312 mtx_lock(&softc->ctl_lock); 13313 13314 /* 13315 * If we don't have a LUN for this, just toss the sense 13316 * information. 13317 */ 13318 port = ctl_io_port(&ctsio->io_hdr); 13319 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13320 if ((targ_lun < CTL_MAX_LUNS) 13321 && (softc->ctl_luns[targ_lun] != NULL)) 13322 lun = softc->ctl_luns[targ_lun]; 13323 else 13324 goto bailout; 13325 13326 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13327 13328 mtx_lock(&lun->lun_lock); 13329 /* 13330 * Already have CA set for this LUN...toss the sense information. 13331 */ 13332 if (ctl_is_set(lun->have_ca, initidx)) { 13333 mtx_unlock(&lun->lun_lock); 13334 goto bailout; 13335 } 13336 13337 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13338 MIN(sizeof(lun->pending_sense[initidx]), 13339 sizeof(io->scsiio.sense_data))); 13340 ctl_set_mask(lun->have_ca, initidx); 13341 mtx_unlock(&lun->lun_lock); 13342 13343bailout: 13344 mtx_unlock(&softc->ctl_lock); 13345 13346 ctl_free_io(io); 13347 13348 return (CTL_RETVAL_COMPLETE); 13349} 13350#endif 13351 13352/* 13353 * Primary command inlet from frontend ports. All SCSI and task I/O 13354 * requests must go through this function. 13355 */ 13356int 13357ctl_queue(union ctl_io *io) 13358{ 13359 struct ctl_port *port; 13360 13361 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13362 13363#ifdef CTL_TIME_IO 13364 io->io_hdr.start_time = time_uptime; 13365 getbintime(&io->io_hdr.start_bt); 13366#endif /* CTL_TIME_IO */ 13367 13368 /* Map FE-specific LUN ID into global one. */ 13369 port = ctl_io_port(&io->io_hdr); 13370 io->io_hdr.nexus.targ_mapped_lun = 13371 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13372 13373 switch (io->io_hdr.io_type) { 13374 case CTL_IO_SCSI: 13375 case CTL_IO_TASK: 13376 if (ctl_debug & CTL_DEBUG_CDB) 13377 ctl_io_print(io); 13378 ctl_enqueue_incoming(io); 13379 break; 13380 default: 13381 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13382 return (EINVAL); 13383 } 13384 13385 return (CTL_RETVAL_COMPLETE); 13386} 13387 13388#ifdef CTL_IO_DELAY 13389static void 13390ctl_done_timer_wakeup(void *arg) 13391{ 13392 union ctl_io *io; 13393 13394 io = (union ctl_io *)arg; 13395 ctl_done(io); 13396} 13397#endif /* CTL_IO_DELAY */ 13398 13399void 13400ctl_serseq_done(union ctl_io *io) 13401{ 13402 struct ctl_lun *lun; 13403 13404 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13405 if (lun->be_lun == NULL || 13406 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13407 return; 13408 mtx_lock(&lun->lun_lock); 13409 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13410 ctl_check_blocked(lun); 13411 mtx_unlock(&lun->lun_lock); 13412} 13413 13414void 13415ctl_done(union ctl_io *io) 13416{ 13417 13418 /* 13419 * Enable this to catch duplicate completion issues. 13420 */ 13421#if 0 13422 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13423 printf("%s: type %d msg %d cdb %x iptl: " 13424 "%u:%u:%u tag 0x%04x " 13425 "flag %#x status %x\n", 13426 __func__, 13427 io->io_hdr.io_type, 13428 io->io_hdr.msg_type, 13429 io->scsiio.cdb[0], 13430 io->io_hdr.nexus.initid, 13431 io->io_hdr.nexus.targ_port, 13432 io->io_hdr.nexus.targ_lun, 13433 (io->io_hdr.io_type == 13434 CTL_IO_TASK) ? 13435 io->taskio.tag_num : 13436 io->scsiio.tag_num, 13437 io->io_hdr.flags, 13438 io->io_hdr.status); 13439 } else 13440 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13441#endif 13442 13443 /* 13444 * This is an internal copy of an I/O, and should not go through 13445 * the normal done processing logic. 13446 */ 13447 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13448 return; 13449 13450#ifdef CTL_IO_DELAY 13451 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13452 struct ctl_lun *lun; 13453 13454 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13455 13456 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13457 } else { 13458 struct ctl_lun *lun; 13459 13460 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13461 13462 if ((lun != NULL) 13463 && (lun->delay_info.done_delay > 0)) { 13464 13465 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13466 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13467 callout_reset(&io->io_hdr.delay_callout, 13468 lun->delay_info.done_delay * hz, 13469 ctl_done_timer_wakeup, io); 13470 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13471 lun->delay_info.done_delay = 0; 13472 return; 13473 } 13474 } 13475#endif /* CTL_IO_DELAY */ 13476 13477 ctl_enqueue_done(io); 13478} 13479 13480static void 13481ctl_work_thread(void *arg) 13482{ 13483 struct ctl_thread *thr = (struct ctl_thread *)arg; 13484 struct ctl_softc *softc = thr->ctl_softc; 13485 union ctl_io *io; 13486 int retval; 13487 13488 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13489 13490 for (;;) { 13491 retval = 0; 13492 13493 /* 13494 * We handle the queues in this order: 13495 * - ISC 13496 * - done queue (to free up resources, unblock other commands) 13497 * - RtR queue 13498 * - incoming queue 13499 * 13500 * If those queues are empty, we break out of the loop and 13501 * go to sleep. 13502 */ 13503 mtx_lock(&thr->queue_lock); 13504 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13505 if (io != NULL) { 13506 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13507 mtx_unlock(&thr->queue_lock); 13508 ctl_handle_isc(io); 13509 continue; 13510 } 13511 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13512 if (io != NULL) { 13513 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13514 /* clear any blocked commands, call fe_done */ 13515 mtx_unlock(&thr->queue_lock); 13516 retval = ctl_process_done(io); 13517 continue; 13518 } 13519 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13520 if (io != NULL) { 13521 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13522 mtx_unlock(&thr->queue_lock); 13523 if (io->io_hdr.io_type == CTL_IO_TASK) 13524 ctl_run_task(io); 13525 else 13526 ctl_scsiio_precheck(softc, &io->scsiio); 13527 continue; 13528 } 13529 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13530 if (io != NULL) { 13531 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13532 mtx_unlock(&thr->queue_lock); 13533 retval = ctl_scsiio(&io->scsiio); 13534 if (retval != CTL_RETVAL_COMPLETE) 13535 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13536 continue; 13537 } 13538 13539 /* Sleep until we have something to do. */ 13540 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13541 } 13542} 13543 13544static void 13545ctl_lun_thread(void *arg) 13546{ 13547 struct ctl_softc *softc = (struct ctl_softc *)arg; 13548 struct ctl_be_lun *be_lun; 13549 int retval; 13550 13551 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13552 13553 for (;;) { 13554 retval = 0; 13555 mtx_lock(&softc->ctl_lock); 13556 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13557 if (be_lun != NULL) { 13558 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13559 mtx_unlock(&softc->ctl_lock); 13560 ctl_create_lun(be_lun); 13561 continue; 13562 } 13563 13564 /* Sleep until we have something to do. */ 13565 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13566 PDROP | PRIBIO, "-", 0); 13567 } 13568} 13569 13570static void 13571ctl_thresh_thread(void *arg) 13572{ 13573 struct ctl_softc *softc = (struct ctl_softc *)arg; 13574 struct ctl_lun *lun; 13575 struct ctl_be_lun *be_lun; 13576 struct scsi_da_rw_recovery_page *rwpage; 13577 struct ctl_logical_block_provisioning_page *page; 13578 const char *attr; 13579 union ctl_ha_msg msg; 13580 uint64_t thres, val; 13581 int i, e, set; 13582 13583 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13584 13585 for (;;) { 13586 mtx_lock(&softc->ctl_lock); 13587 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13588 be_lun = lun->be_lun; 13589 if ((lun->flags & CTL_LUN_DISABLED) || 13590 (lun->flags & CTL_LUN_OFFLINE) || 13591 lun->backend->lun_attr == NULL) 13592 continue; 13593 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13594 softc->ha_mode == CTL_HA_MODE_XFER) 13595 continue; 13596 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13597 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13598 continue; 13599 e = 0; 13600 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13601 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13602 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13603 continue; 13604 thres = scsi_4btoul(page->descr[i].count); 13605 thres <<= CTL_LBP_EXPONENT; 13606 switch (page->descr[i].resource) { 13607 case 0x01: 13608 attr = "blocksavail"; 13609 break; 13610 case 0x02: 13611 attr = "blocksused"; 13612 break; 13613 case 0xf1: 13614 attr = "poolblocksavail"; 13615 break; 13616 case 0xf2: 13617 attr = "poolblocksused"; 13618 break; 13619 default: 13620 continue; 13621 } 13622 mtx_unlock(&softc->ctl_lock); // XXX 13623 val = lun->backend->lun_attr( 13624 lun->be_lun->be_lun, attr); 13625 mtx_lock(&softc->ctl_lock); 13626 if (val == UINT64_MAX) 13627 continue; 13628 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13629 == SLBPPD_ARMING_INC) 13630 e = (val >= thres); 13631 else 13632 e = (val <= thres); 13633 if (e) 13634 break; 13635 } 13636 mtx_lock(&lun->lun_lock); 13637 if (e) { 13638 scsi_u64to8b((uint8_t *)&page->descr[i] - 13639 (uint8_t *)page, lun->ua_tpt_info); 13640 if (lun->lasttpt == 0 || 13641 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13642 lun->lasttpt = time_uptime; 13643 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13644 set = 1; 13645 } else 13646 set = 0; 13647 } else { 13648 lun->lasttpt = 0; 13649 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13650 set = -1; 13651 } 13652 mtx_unlock(&lun->lun_lock); 13653 if (set != 0 && 13654 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13655 /* Send msg to other side. */ 13656 bzero(&msg.ua, sizeof(msg.ua)); 13657 msg.hdr.msg_type = CTL_MSG_UA; 13658 msg.hdr.nexus.initid = -1; 13659 msg.hdr.nexus.targ_port = -1; 13660 msg.hdr.nexus.targ_lun = lun->lun; 13661 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13662 msg.ua.ua_all = 1; 13663 msg.ua.ua_set = (set > 0); 13664 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13665 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13666 mtx_unlock(&softc->ctl_lock); // XXX 13667 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13668 sizeof(msg.ua), M_WAITOK); 13669 mtx_lock(&softc->ctl_lock); 13670 } 13671 } 13672 mtx_unlock(&softc->ctl_lock); 13673 pause("-", CTL_LBP_PERIOD * hz); 13674 } 13675} 13676 13677static void 13678ctl_enqueue_incoming(union ctl_io *io) 13679{ 13680 struct ctl_softc *softc = control_softc; 13681 struct ctl_thread *thr; 13682 u_int idx; 13683 13684 idx = (io->io_hdr.nexus.targ_port * 127 + 13685 io->io_hdr.nexus.initid) % worker_threads; 13686 thr = &softc->threads[idx]; 13687 mtx_lock(&thr->queue_lock); 13688 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13689 mtx_unlock(&thr->queue_lock); 13690 wakeup(thr); 13691} 13692 13693static void 13694ctl_enqueue_rtr(union ctl_io *io) 13695{ 13696 struct ctl_softc *softc = control_softc; 13697 struct ctl_thread *thr; 13698 13699 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13700 mtx_lock(&thr->queue_lock); 13701 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13702 mtx_unlock(&thr->queue_lock); 13703 wakeup(thr); 13704} 13705 13706static void 13707ctl_enqueue_done(union ctl_io *io) 13708{ 13709 struct ctl_softc *softc = control_softc; 13710 struct ctl_thread *thr; 13711 13712 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13713 mtx_lock(&thr->queue_lock); 13714 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13715 mtx_unlock(&thr->queue_lock); 13716 wakeup(thr); 13717} 13718 13719static void 13720ctl_enqueue_isc(union ctl_io *io) 13721{ 13722 struct ctl_softc *softc = control_softc; 13723 struct ctl_thread *thr; 13724 13725 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13726 mtx_lock(&thr->queue_lock); 13727 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13728 mtx_unlock(&thr->queue_lock); 13729 wakeup(thr); 13730} 13731 13732/* 13733 * vim: ts=8 13734 */ 13735