sys/cam/ctl/ctl_tpc.c

   1 /*-
   2  * Copyright (c) 2014 Alexander Motin <mav@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.h>
  33 #include <sys/types.h>
  34 #include <sys/lock.h>
  35 #include <sys/module.h>
  36 #include <sys/mutex.h>
  37 #include <sys/condvar.h>
  38 #include <sys/malloc.h>
  39 #include <sys/conf.h>
  40 #include <sys/queue.h>
  41 #include <sys/sysctl.h>
  42 #include <machine/atomic.h>
  43
  44 #include <cam/cam.h>
  45 #include <cam/scsi/scsi_all.h>
  46 #include <cam/scsi/scsi_da.h>
  47 #include <cam/ctl/ctl_io.h>
  48 #include <cam/ctl/ctl.h>
  49 #include <cam/ctl/ctl_frontend.h>
  50 #include <cam/ctl/ctl_frontend_internal.h>
  51 #include <cam/ctl/ctl_util.h>
  52 #include <cam/ctl/ctl_backend.h>
  53 #include <cam/ctl/ctl_ioctl.h>
  54 #include <cam/ctl/ctl_ha.h>
  55 #include <cam/ctl/ctl_private.h>
  56 #include <cam/ctl/ctl_debug.h>
  57 #include <cam/ctl/ctl_scsi_all.h>
  58 #include <cam/ctl/ctl_tpc.h>
  59 #include <cam/ctl/ctl_error.h>
  60
  61 #define TPC_MAX_CSCDS   64
  62 #define TPC_MAX_SEGS    64
  63 #define TPC_MAX_SEG     0
  64 #define TPC_MAX_LIST    8192
  65 #define TPC_MAX_INLINE  0
  66 #define TPC_MAX_LISTS   255
  67 #define TPC_MAX_IO_SIZE (1024 * 1024)
  68 #define TPC_MAX_IOCHUNK_SIZE    (TPC_MAX_IO_SIZE * 16)
  69 #define TPC_MIN_TOKEN_TIMEOUT   1
  70 #define TPC_DFL_TOKEN_TIMEOUT   60
  71 #define TPC_MAX_TOKEN_TIMEOUT   600
  72
  73 MALLOC_DEFINE(M_CTL_TPC, "ctltpc", "CTL TPC");
  74
  75 typedef enum {
  76         TPC_ERR_RETRY           = 0x000,
  77         TPC_ERR_FAIL            = 0x001,
  78         TPC_ERR_MASK            = 0x0ff,
  79         TPC_ERR_NO_DECREMENT    = 0x100
  80 } tpc_error_action;
  81
  82 struct tpc_list;
  83 TAILQ_HEAD(runl, tpc_io);
  84 struct tpc_io {
  85         union ctl_io            *io;
  86         uint64_t                 lun;
  87         struct tpc_list         *list;
  88         struct runl              run;
  89         TAILQ_ENTRY(tpc_io)      rlinks;
  90         TAILQ_ENTRY(tpc_io)      links;
  91 };
  92
  93 struct tpc_token {
  94         uint8_t                  token[512];
  95         uint64_t                 lun;
  96         uint32_t                 blocksize;
  97         uint8_t                 *params;
  98         struct scsi_range_desc  *range;
  99         int                      nrange;
 100         int                      active;
 101         time_t                   last_active;
 102         uint32_t                 timeout;
 103         TAILQ_ENTRY(tpc_token)   links;
 104 };
 105
 106 struct tpc_list {
 107         uint8_t                  service_action;
 108         int                      init_port;
 109         uint32_t                 init_idx;
 110         uint32_t                 list_id;
 111         uint8_t                  flags;
 112         uint8_t                 *params;
 113         struct scsi_ec_cscd     *cscd;
 114         struct scsi_ec_segment  *seg[TPC_MAX_SEGS];
 115         uint8_t                 *inl;
 116         int                      ncscd;
 117         int                      nseg;
 118         int                      leninl;
 119         struct tpc_token        *token;
 120         struct scsi_range_desc  *range;
 121         int                      nrange;
 122         off_t                    offset_into_rod;
 123
 124         int                      curseg;
 125         off_t                    cursectors;
 126         off_t                    curbytes;
 127         int                      curops;
 128         int                      stage;
 129         uint8_t                 *buf;
 130         off_t                    segsectors;
 131         off_t                    segbytes;
 132         int                      tbdio;
 133         int                      error;
 134         int                      abort;
 135         int                      completed;
 136         time_t                   last_active;
 137         TAILQ_HEAD(, tpc_io)     allio;
 138         struct scsi_sense_data   sense_data;
 139         uint8_t                  sense_len;
 140         uint8_t                  scsi_status;
 141         struct ctl_scsiio       *ctsio;
 142         struct ctl_lun          *lun;
 143         int                      res_token_valid;
 144         uint8_t                  res_token[512];
 145         TAILQ_ENTRY(tpc_list)    links;
 146 };
 147
 148 extern struct ctl_softc *control_softc;
 149
 150 static void
 151 tpc_timeout(void *arg)
 152 {
 153         struct ctl_softc *softc = arg;
 154         struct ctl_lun *lun;
 155         struct tpc_token *token, *ttoken;
 156         struct tpc_list *list, *tlist;
 157
 158         /* Free completed lists with expired timeout. */
 159         STAILQ_FOREACH(lun, &softc->lun_list, links) {
 160                 mtx_lock(&lun->lun_lock);
 161                 TAILQ_FOREACH_SAFE(list, &lun->tpc_lists, links, tlist) {
 162                         if (!list->completed || time_uptime < list->last_active +
 163                             TPC_DFL_TOKEN_TIMEOUT)
 164                                 continue;
 165                         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 166                         free(list, M_CTL);
 167                 }
 168                 mtx_unlock(&lun->lun_lock);
 169         }
 170
 171         /* Free inactive ROD tokens with expired timeout. */
 172         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
 173                 if (token->active ||
 174                     time_uptime < token->last_active + token->timeout + 1)
 175                         continue;
 176                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 177                 free(token->params, M_CTL);
 178                 free(token, M_CTL);
 179         }
 180         callout_schedule(&softc->tpc_timeout, hz);
 181 }
 182
 183 void
 184 ctl_tpc_init(struct ctl_softc *softc)
 185 {
 186
 187         TAILQ_INIT(&softc->tpc_tokens);
 188         callout_init_mtx(&softc->tpc_timeout, &softc->ctl_lock, 0);
 189         callout_reset(&softc->tpc_timeout, hz, tpc_timeout, softc);
 190 }
 191
 192 void
 193 ctl_tpc_shutdown(struct ctl_softc *softc)
 194 {
 195         struct tpc_token *token;
 196
 197         callout_drain(&softc->tpc_timeout);
 198
 199         /* Free ROD tokens. */
 200         mtx_lock(&softc->ctl_lock);
 201         while ((token = TAILQ_FIRST(&softc->tpc_tokens)) != NULL) {
 202                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 203                 free(token->params, M_CTL);
 204                 free(token, M_CTL);
 205         }
 206         mtx_unlock(&softc->ctl_lock);
 207 }
 208
 209 void
 210 ctl_tpc_lun_init(struct ctl_lun *lun)
 211 {
 212
 213         TAILQ_INIT(&lun->tpc_lists);
 214 }
 215
 216 void
 217 ctl_tpc_lun_shutdown(struct ctl_lun *lun)
 218 {
 219         struct tpc_list *list;
 220         struct tpc_token *token, *ttoken;
 221
 222         /* Free lists for this LUN. */
 223         while ((list = TAILQ_FIRST(&lun->tpc_lists)) != NULL) {
 224                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 225                 KASSERT(list->completed,
 226                     ("Not completed TPC (%p) on shutdown", list));
 227                 free(list, M_CTL);
 228         }
 229
 230         /* Free ROD tokens for this LUN. */
 231         mtx_assert(&control_softc->ctl_lock, MA_OWNED);
 232         TAILQ_FOREACH_SAFE(token, &control_softc->tpc_tokens, links, ttoken) {
 233                 if (token->lun != lun->lun || token->active)
 234                         continue;
 235                 TAILQ_REMOVE(&control_softc->tpc_tokens, token, links);
 236                 free(token->params, M_CTL);
 237                 free(token, M_CTL);
 238         }
 239 }
 240
 241 int
 242 ctl_inquiry_evpd_tpc(struct ctl_scsiio *ctsio, int alloc_len)
 243 {
 244         struct scsi_vpd_tpc *tpc_ptr;
 245         struct scsi_vpd_tpc_descriptor *d_ptr;
 246         struct scsi_vpd_tpc_descriptor_bdrl *bdrl_ptr;
 247         struct scsi_vpd_tpc_descriptor_sc *sc_ptr;
 248         struct scsi_vpd_tpc_descriptor_sc_descr *scd_ptr;
 249         struct scsi_vpd_tpc_descriptor_pd *pd_ptr;
 250         struct scsi_vpd_tpc_descriptor_sd *sd_ptr;
 251         struct scsi_vpd_tpc_descriptor_sdid *sdid_ptr;
 252         struct scsi_vpd_tpc_descriptor_rtf *rtf_ptr;
 253         struct scsi_vpd_tpc_descriptor_rtf_block *rtfb_ptr;
 254         struct scsi_vpd_tpc_descriptor_srt *srt_ptr;
 255         struct scsi_vpd_tpc_descriptor_srtd *srtd_ptr;
 256         struct scsi_vpd_tpc_descriptor_gco *gco_ptr;
 257         struct ctl_lun *lun;
 258         int data_len;
 259
 260         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 261
 262         data_len = sizeof(struct scsi_vpd_tpc) +
 263             sizeof(struct scsi_vpd_tpc_descriptor_bdrl) +
 264             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sc) +
 265              2 * sizeof(struct scsi_vpd_tpc_descriptor_sc_descr) + 11, 4) +
 266             sizeof(struct scsi_vpd_tpc_descriptor_pd) +
 267             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sd) + 4, 4) +
 268             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sdid) + 2, 4) +
 269             sizeof(struct scsi_vpd_tpc_descriptor_rtf) +
 270              sizeof(struct scsi_vpd_tpc_descriptor_rtf_block) +
 271             sizeof(struct scsi_vpd_tpc_descriptor_srt) +
 272              2*sizeof(struct scsi_vpd_tpc_descriptor_srtd) +
 273             sizeof(struct scsi_vpd_tpc_descriptor_gco);
 274
 275         ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
 276         tpc_ptr = (struct scsi_vpd_tpc *)ctsio->kern_data_ptr;
 277         ctsio->kern_sg_entries = 0;
 278
 279         if (data_len < alloc_len) {
 280                 ctsio->residual = alloc_len - data_len;
 281                 ctsio->kern_data_len = data_len;
 282                 ctsio->kern_total_len = data_len;
 283         } else {
 284                 ctsio->residual = 0;
 285                 ctsio->kern_data_len = alloc_len;
 286                 ctsio->kern_total_len = alloc_len;
 287         }
 288         ctsio->kern_data_resid = 0;
 289         ctsio->kern_rel_offset = 0;
 290         ctsio->kern_sg_entries = 0;
 291
 292         /*
 293          * The control device is always connected.  The disk device, on the
 294          * other hand, may not be online all the time.
 295          */
 296         if (lun != NULL)
 297                 tpc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
 298                                      lun->be_lun->lun_type;
 299         else
 300                 tpc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
 301         tpc_ptr->page_code = SVPD_SCSI_TPC;
 302         scsi_ulto2b(data_len - 4, tpc_ptr->page_length);
 303
 304         /* Block Device ROD Limits */
 305         d_ptr = (struct scsi_vpd_tpc_descriptor *)&tpc_ptr->descr[0];
 306         bdrl_ptr = (struct scsi_vpd_tpc_descriptor_bdrl *)d_ptr;
 307         scsi_ulto2b(SVPD_TPC_BDRL, bdrl_ptr->desc_type);
 308         scsi_ulto2b(sizeof(*bdrl_ptr) - 4, bdrl_ptr->desc_length);
 309         scsi_ulto2b(TPC_MAX_SEGS, bdrl_ptr->maximum_ranges);
 310         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 311             bdrl_ptr->maximum_inactivity_timeout);
 312         scsi_ulto4b(TPC_DFL_TOKEN_TIMEOUT,
 313             bdrl_ptr->default_inactivity_timeout);
 314         scsi_u64to8b(0, bdrl_ptr->maximum_token_transfer_size);
 315         scsi_u64to8b(0, bdrl_ptr->optimal_transfer_count);
 316
 317         /* Supported commands */
 318         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 319             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 320         sc_ptr = (struct scsi_vpd_tpc_descriptor_sc *)d_ptr;
 321         scsi_ulto2b(SVPD_TPC_SC, sc_ptr->desc_type);
 322         sc_ptr->list_length = 2 * sizeof(*scd_ptr) + 11;
 323         scsi_ulto2b(roundup2(1 + sc_ptr->list_length, 4), sc_ptr->desc_length);
 324         scd_ptr = &sc_ptr->descr[0];
 325         scd_ptr->opcode = EXTENDED_COPY;
 326         scd_ptr->sa_length = 5;
 327         scd_ptr->supported_service_actions[0] = EC_EC_LID1;
 328         scd_ptr->supported_service_actions[1] = EC_EC_LID4;
 329         scd_ptr->supported_service_actions[2] = EC_PT;
 330         scd_ptr->supported_service_actions[3] = EC_WUT;
 331         scd_ptr->supported_service_actions[4] = EC_COA;
 332         scd_ptr = (struct scsi_vpd_tpc_descriptor_sc_descr *)
 333             &scd_ptr->supported_service_actions[scd_ptr->sa_length];
 334         scd_ptr->opcode = RECEIVE_COPY_STATUS;
 335         scd_ptr->sa_length = 6;
 336         scd_ptr->supported_service_actions[0] = RCS_RCS_LID1;
 337         scd_ptr->supported_service_actions[1] = RCS_RCFD;
 338         scd_ptr->supported_service_actions[2] = RCS_RCS_LID4;
 339         scd_ptr->supported_service_actions[3] = RCS_RCOP;
 340         scd_ptr->supported_service_actions[4] = RCS_RRTI;
 341         scd_ptr->supported_service_actions[5] = RCS_RART;
 342
 343         /* Parameter data. */
 344         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 345             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 346         pd_ptr = (struct scsi_vpd_tpc_descriptor_pd *)d_ptr;
 347         scsi_ulto2b(SVPD_TPC_PD, pd_ptr->desc_type);
 348         scsi_ulto2b(sizeof(*pd_ptr) - 4, pd_ptr->desc_length);
 349         scsi_ulto2b(TPC_MAX_CSCDS, pd_ptr->maximum_cscd_descriptor_count);
 350         scsi_ulto2b(TPC_MAX_SEGS, pd_ptr->maximum_segment_descriptor_count);
 351         scsi_ulto4b(TPC_MAX_LIST, pd_ptr->maximum_descriptor_list_length);
 352         scsi_ulto4b(TPC_MAX_INLINE, pd_ptr->maximum_inline_data_length);
 353
 354         /* Supported Descriptors */
 355         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 356             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 357         sd_ptr = (struct scsi_vpd_tpc_descriptor_sd *)d_ptr;
 358         scsi_ulto2b(SVPD_TPC_SD, sd_ptr->desc_type);
 359         scsi_ulto2b(roundup2(sizeof(*sd_ptr) - 4 + 4, 4), sd_ptr->desc_length);
 360         sd_ptr->list_length = 4;
 361         sd_ptr->supported_descriptor_codes[0] = EC_SEG_B2B;
 362         sd_ptr->supported_descriptor_codes[1] = EC_SEG_VERIFY;
 363         sd_ptr->supported_descriptor_codes[2] = EC_SEG_REGISTER_KEY;
 364         sd_ptr->supported_descriptor_codes[3] = EC_CSCD_ID;
 365
 366         /* Supported CSCD Descriptor IDs */
 367         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 368             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 369         sdid_ptr = (struct scsi_vpd_tpc_descriptor_sdid *)d_ptr;
 370         scsi_ulto2b(SVPD_TPC_SDID, sdid_ptr->desc_type);
 371         scsi_ulto2b(roundup2(sizeof(*sdid_ptr) - 4 + 2, 4), sdid_ptr->desc_length);
 372         scsi_ulto2b(2, sdid_ptr->list_length);
 373         scsi_ulto2b(0xffff, &sdid_ptr->supported_descriptor_ids[0]);
 374
 375         /* ROD Token Features */
 376         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 377             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 378         rtf_ptr = (struct scsi_vpd_tpc_descriptor_rtf *)d_ptr;
 379         scsi_ulto2b(SVPD_TPC_RTF, rtf_ptr->desc_type);
 380         scsi_ulto2b(sizeof(*rtf_ptr) - 4 + sizeof(*rtfb_ptr), rtf_ptr->desc_length);
 381         rtf_ptr->remote_tokens = 0;
 382         scsi_ulto4b(TPC_MIN_TOKEN_TIMEOUT, rtf_ptr->minimum_token_lifetime);
 383         scsi_ulto4b(UINT32_MAX, rtf_ptr->maximum_token_lifetime);
 384         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 385             rtf_ptr->maximum_token_inactivity_timeout);
 386         scsi_ulto2b(sizeof(*rtfb_ptr), rtf_ptr->type_specific_features_length);
 387         rtfb_ptr = (struct scsi_vpd_tpc_descriptor_rtf_block *)
 388             &rtf_ptr->type_specific_features;
 389         rtfb_ptr->type_format = SVPD_TPC_RTF_BLOCK;
 390         scsi_ulto2b(sizeof(*rtfb_ptr) - 4, rtfb_ptr->desc_length);
 391         scsi_ulto2b(0, rtfb_ptr->optimal_length_granularity);
 392         scsi_u64to8b(0, rtfb_ptr->maximum_bytes);
 393         scsi_u64to8b(0, rtfb_ptr->optimal_bytes);
 394         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
 395             rtfb_ptr->optimal_bytes_to_token_per_segment);
 396         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
 397             rtfb_ptr->optimal_bytes_from_token_per_segment);
 398
 399         /* Supported ROD Tokens */
 400         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 401             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 402         srt_ptr = (struct scsi_vpd_tpc_descriptor_srt *)d_ptr;
 403         scsi_ulto2b(SVPD_TPC_SRT, srt_ptr->desc_type);
 404         scsi_ulto2b(sizeof(*srt_ptr) - 4 + 2*sizeof(*srtd_ptr), srt_ptr->desc_length);
 405         scsi_ulto2b(2*sizeof(*srtd_ptr), srt_ptr->rod_type_descriptors_length);
 406         srtd_ptr = (struct scsi_vpd_tpc_descriptor_srtd *)
 407             &srt_ptr->rod_type_descriptors;
 408         scsi_ulto4b(ROD_TYPE_AUR, srtd_ptr->rod_type);
 409         srtd_ptr->flags = SVPD_TPC_SRTD_TIN | SVPD_TPC_SRTD_TOUT;
 410         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 411         srtd_ptr++;
 412         scsi_ulto4b(ROD_TYPE_BLOCK_ZERO, srtd_ptr->rod_type);
 413         srtd_ptr->flags = SVPD_TPC_SRTD_TIN;
 414         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 415
 416         /* General Copy Operations */
 417         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 418             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 419         gco_ptr = (struct scsi_vpd_tpc_descriptor_gco *)d_ptr;
 420         scsi_ulto2b(SVPD_TPC_GCO, gco_ptr->desc_type);
 421         scsi_ulto2b(sizeof(*gco_ptr) - 4, gco_ptr->desc_length);
 422         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->total_concurrent_copies);
 423         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->maximum_identified_concurrent_copies);
 424         scsi_ulto4b(TPC_MAX_SEG, gco_ptr->maximum_segment_length);
 425         gco_ptr->data_segment_granularity = 0;
 426         gco_ptr->inline_data_granularity = 0;
 427
 428         ctl_set_success(ctsio);
 429         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 430         ctsio->be_move_done = ctl_config_move_done;
 431         ctl_datamove((union ctl_io *)ctsio);
 432
 433         return (CTL_RETVAL_COMPLETE);
 434 }
 435
 436 int
 437 ctl_receive_copy_operating_parameters(struct ctl_scsiio *ctsio)
 438 {
 439         struct scsi_receive_copy_operating_parameters *cdb;
 440         struct scsi_receive_copy_operating_parameters_data *data;
 441         int retval;
 442         int alloc_len, total_len;
 443
 444         CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n"));
 445
 446         cdb = (struct scsi_receive_copy_operating_parameters *)ctsio->cdb;
 447
 448         retval = CTL_RETVAL_COMPLETE;
 449
 450         total_len = sizeof(*data) + 4;
 451         alloc_len = scsi_4btoul(cdb->length);
 452
 453         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 454
 455         ctsio->kern_sg_entries = 0;
 456
 457         if (total_len < alloc_len) {
 458                 ctsio->residual = alloc_len - total_len;
 459                 ctsio->kern_data_len = total_len;
 460                 ctsio->kern_total_len = total_len;
 461         } else {
 462                 ctsio->residual = 0;
 463                 ctsio->kern_data_len = alloc_len;
 464                 ctsio->kern_total_len = alloc_len;
 465         }
 466         ctsio->kern_data_resid = 0;
 467         ctsio->kern_rel_offset = 0;
 468
 469         data = (struct scsi_receive_copy_operating_parameters_data *)ctsio->kern_data_ptr;
 470         scsi_ulto4b(sizeof(*data) - 4 + 4, data->length);
 471         data->snlid = RCOP_SNLID;
 472         scsi_ulto2b(TPC_MAX_CSCDS, data->maximum_cscd_descriptor_count);
 473         scsi_ulto2b(TPC_MAX_SEGS, data->maximum_segment_descriptor_count);
 474         scsi_ulto4b(TPC_MAX_LIST, data->maximum_descriptor_list_length);
 475         scsi_ulto4b(TPC_MAX_SEG, data->maximum_segment_length);
 476         scsi_ulto4b(TPC_MAX_INLINE, data->maximum_inline_data_length);
 477         scsi_ulto4b(0, data->held_data_limit);
 478         scsi_ulto4b(0, data->maximum_stream_device_transfer_size);
 479         scsi_ulto2b(TPC_MAX_LISTS, data->total_concurrent_copies);
 480         data->maximum_concurrent_copies = TPC_MAX_LISTS;
 481         data->data_segment_granularity = 0;
 482         data->inline_data_granularity = 0;
 483         data->held_data_granularity = 0;
 484         data->implemented_descriptor_list_length = 4;
 485         data->list_of_implemented_descriptor_type_codes[0] = EC_SEG_B2B;
 486         data->list_of_implemented_descriptor_type_codes[1] = EC_SEG_VERIFY;
 487         data->list_of_implemented_descriptor_type_codes[2] = EC_SEG_REGISTER_KEY;
 488         data->list_of_implemented_descriptor_type_codes[3] = EC_CSCD_ID;
 489
 490         ctl_set_success(ctsio);
 491         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 492         ctsio->be_move_done = ctl_config_move_done;
 493         ctl_datamove((union ctl_io *)ctsio);
 494         return (retval);
 495 }
 496
 497 static struct tpc_list *
 498 tpc_find_list(struct ctl_lun *lun, uint32_t list_id, uint32_t init_idx)
 499 {
 500         struct tpc_list *list;
 501
 502         mtx_assert(&lun->lun_lock, MA_OWNED);
 503         TAILQ_FOREACH(list, &lun->tpc_lists, links) {
 504                 if ((list->flags & EC_LIST_ID_USAGE_MASK) !=
 505                      EC_LIST_ID_USAGE_NONE && list->list_id == list_id &&
 506                     list->init_idx == init_idx)
 507                         break;
 508         }
 509         return (list);
 510 }
 511
 512 int
 513 ctl_receive_copy_status_lid1(struct ctl_scsiio *ctsio)
 514 {
 515         struct ctl_lun *lun;
 516         struct scsi_receive_copy_status_lid1 *cdb;
 517         struct scsi_receive_copy_status_lid1_data *data;
 518         struct tpc_list *list;
 519         struct tpc_list list_copy;
 520         int retval;
 521         int alloc_len, total_len;
 522         uint32_t list_id;
 523
 524         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid1\n"));
 525
 526         cdb = (struct scsi_receive_copy_status_lid1 *)ctsio->cdb;
 527         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 528
 529         retval = CTL_RETVAL_COMPLETE;
 530
 531         list_id = cdb->list_identifier;
 532         mtx_lock(&lun->lun_lock);
 533         list = tpc_find_list(lun, list_id,
 534             ctl_get_resindex(&ctsio->io_hdr.nexus));
 535         if (list == NULL) {
 536                 mtx_unlock(&lun->lun_lock);
 537                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 538                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 539                     /*bit*/ 0);
 540                 ctl_done((union ctl_io *)ctsio);
 541                 return (retval);
 542         }
 543         list_copy = *list;
 544         if (list->completed) {
 545                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 546                 free(list, M_CTL);
 547         }
 548         mtx_unlock(&lun->lun_lock);
 549
 550         total_len = sizeof(*data);
 551         alloc_len = scsi_4btoul(cdb->length);
 552
 553         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 554
 555         ctsio->kern_sg_entries = 0;
 556
 557         if (total_len < alloc_len) {
 558                 ctsio->residual = alloc_len - total_len;
 559                 ctsio->kern_data_len = total_len;
 560                 ctsio->kern_total_len = total_len;
 561         } else {
 562                 ctsio->residual = 0;
 563                 ctsio->kern_data_len = alloc_len;
 564                 ctsio->kern_total_len = alloc_len;
 565         }
 566         ctsio->kern_data_resid = 0;
 567         ctsio->kern_rel_offset = 0;
 568
 569         data = (struct scsi_receive_copy_status_lid1_data *)ctsio->kern_data_ptr;
 570         scsi_ulto4b(sizeof(*data) - 4, data->available_data);
 571         if (list_copy.completed) {
 572                 if (list_copy.error || list_copy.abort)
 573                         data->copy_command_status = RCS_CCS_ERROR;
 574                 else
 575                         data->copy_command_status = RCS_CCS_COMPLETED;
 576         } else
 577                 data->copy_command_status = RCS_CCS_INPROG;
 578         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 579         if (list_copy.curbytes <= UINT32_MAX) {
 580                 data->transfer_count_units = RCS_TC_BYTES;
 581                 scsi_ulto4b(list_copy.curbytes, data->transfer_count);
 582         } else {
 583                 data->transfer_count_units = RCS_TC_MBYTES;
 584                 scsi_ulto4b(list_copy.curbytes >> 20, data->transfer_count);
 585         }
 586
 587         ctl_set_success(ctsio);
 588         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 589         ctsio->be_move_done = ctl_config_move_done;
 590         ctl_datamove((union ctl_io *)ctsio);
 591         return (retval);
 592 }
 593
 594 int
 595 ctl_receive_copy_failure_details(struct ctl_scsiio *ctsio)
 596 {
 597         struct ctl_lun *lun;
 598         struct scsi_receive_copy_failure_details *cdb;
 599         struct scsi_receive_copy_failure_details_data *data;
 600         struct tpc_list *list;
 601         struct tpc_list list_copy;
 602         int retval;
 603         int alloc_len, total_len;
 604         uint32_t list_id;
 605
 606         CTL_DEBUG_PRINT(("ctl_receive_copy_failure_details\n"));
 607
 608         cdb = (struct scsi_receive_copy_failure_details *)ctsio->cdb;
 609         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 610
 611         retval = CTL_RETVAL_COMPLETE;
 612
 613         list_id = cdb->list_identifier;
 614         mtx_lock(&lun->lun_lock);
 615         list = tpc_find_list(lun, list_id,
 616             ctl_get_resindex(&ctsio->io_hdr.nexus));
 617         if (list == NULL || !list->completed) {
 618                 mtx_unlock(&lun->lun_lock);
 619                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 620                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 621                     /*bit*/ 0);
 622                 ctl_done((union ctl_io *)ctsio);
 623                 return (retval);
 624         }
 625         list_copy = *list;
 626         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 627         free(list, M_CTL);
 628         mtx_unlock(&lun->lun_lock);
 629
 630         total_len = sizeof(*data) + list_copy.sense_len;
 631         alloc_len = scsi_4btoul(cdb->length);
 632
 633         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 634
 635         ctsio->kern_sg_entries = 0;
 636
 637         if (total_len < alloc_len) {
 638                 ctsio->residual = alloc_len - total_len;
 639                 ctsio->kern_data_len = total_len;
 640                 ctsio->kern_total_len = total_len;
 641         } else {
 642                 ctsio->residual = 0;
 643                 ctsio->kern_data_len = alloc_len;
 644                 ctsio->kern_total_len = alloc_len;
 645         }
 646         ctsio->kern_data_resid = 0;
 647         ctsio->kern_rel_offset = 0;
 648
 649         data = (struct scsi_receive_copy_failure_details_data *)ctsio->kern_data_ptr;
 650         if (list_copy.completed && (list_copy.error || list_copy.abort)) {
 651                 scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 652                     data->available_data);
 653                 data->copy_command_status = RCS_CCS_ERROR;
 654         } else
 655                 scsi_ulto4b(0, data->available_data);
 656         scsi_ulto2b(list_copy.sense_len, data->sense_data_length);
 657         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 658
 659         ctl_set_success(ctsio);
 660         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 661         ctsio->be_move_done = ctl_config_move_done;
 662         ctl_datamove((union ctl_io *)ctsio);
 663         return (retval);
 664 }
 665
 666 int
 667 ctl_receive_copy_status_lid4(struct ctl_scsiio *ctsio)
 668 {
 669         struct ctl_lun *lun;
 670         struct scsi_receive_copy_status_lid4 *cdb;
 671         struct scsi_receive_copy_status_lid4_data *data;
 672         struct tpc_list *list;
 673         struct tpc_list list_copy;
 674         int retval;
 675         int alloc_len, total_len;
 676         uint32_t list_id;
 677
 678         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid4\n"));
 679
 680         cdb = (struct scsi_receive_copy_status_lid4 *)ctsio->cdb;
 681         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 682
 683         retval = CTL_RETVAL_COMPLETE;
 684
 685         list_id = scsi_4btoul(cdb->list_identifier);
 686         mtx_lock(&lun->lun_lock);
 687         list = tpc_find_list(lun, list_id,
 688             ctl_get_resindex(&ctsio->io_hdr.nexus));
 689         if (list == NULL) {
 690                 mtx_unlock(&lun->lun_lock);
 691                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 692                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 693                     /*bit*/ 0);
 694                 ctl_done((union ctl_io *)ctsio);
 695                 return (retval);
 696         }
 697         list_copy = *list;
 698         if (list->completed) {
 699                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 700                 free(list, M_CTL);
 701         }
 702         mtx_unlock(&lun->lun_lock);
 703
 704         total_len = sizeof(*data) + list_copy.sense_len;
 705         alloc_len = scsi_4btoul(cdb->length);
 706
 707         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 708
 709         ctsio->kern_sg_entries = 0;
 710
 711         if (total_len < alloc_len) {
 712                 ctsio->residual = alloc_len - total_len;
 713                 ctsio->kern_data_len = total_len;
 714                 ctsio->kern_total_len = total_len;
 715         } else {
 716                 ctsio->residual = 0;
 717                 ctsio->kern_data_len = alloc_len;
 718                 ctsio->kern_total_len = alloc_len;
 719         }
 720         ctsio->kern_data_resid = 0;
 721         ctsio->kern_rel_offset = 0;
 722
 723         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
 724         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 725             data->available_data);
 726         data->response_to_service_action = list_copy.service_action;
 727         if (list_copy.completed) {
 728                 if (list_copy.error)
 729                         data->copy_command_status = RCS_CCS_ERROR;
 730                 else if (list_copy.abort)
 731                         data->copy_command_status = RCS_CCS_ABORTED;
 732                 else
 733                         data->copy_command_status = RCS_CCS_COMPLETED;
 734         } else
 735                 data->copy_command_status = RCS_CCS_INPROG_FG;
 736         scsi_ulto2b(list_copy.curops, data->operation_counter);
 737         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
 738         data->transfer_count_units = RCS_TC_BYTES;
 739         scsi_u64to8b(list_copy.curbytes, data->transfer_count);
 740         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 741         data->length_of_the_sense_data_field = list_copy.sense_len;
 742         data->sense_data_length = list_copy.sense_len;
 743         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 744
 745         ctl_set_success(ctsio);
 746         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 747         ctsio->be_move_done = ctl_config_move_done;
 748         ctl_datamove((union ctl_io *)ctsio);
 749         return (retval);
 750 }
 751
 752 int
 753 ctl_copy_operation_abort(struct ctl_scsiio *ctsio)
 754 {
 755         struct ctl_lun *lun;
 756         struct scsi_copy_operation_abort *cdb;
 757         struct tpc_list *list;
 758         int retval;
 759         uint32_t list_id;
 760
 761         CTL_DEBUG_PRINT(("ctl_copy_operation_abort\n"));
 762
 763         cdb = (struct scsi_copy_operation_abort *)ctsio->cdb;
 764         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 765
 766         retval = CTL_RETVAL_COMPLETE;
 767
 768         list_id = scsi_4btoul(cdb->list_identifier);
 769         mtx_lock(&lun->lun_lock);
 770         list = tpc_find_list(lun, list_id,
 771             ctl_get_resindex(&ctsio->io_hdr.nexus));
 772         if (list == NULL) {
 773                 mtx_unlock(&lun->lun_lock);
 774                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 775                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 776                     /*bit*/ 0);
 777                 ctl_done((union ctl_io *)ctsio);
 778                 return (retval);
 779         }
 780         list->abort = 1;
 781         mtx_unlock(&lun->lun_lock);
 782
 783         ctl_set_success(ctsio);
 784         ctl_done((union ctl_io *)ctsio);
 785         return (retval);
 786 }
 787
 788 static uint64_t
 789 tpc_resolve(struct tpc_list *list, uint16_t idx, uint32_t *ss)
 790 {
 791
 792         if (idx == 0xffff) {
 793                 if (ss && list->lun->be_lun)
 794                         *ss = list->lun->be_lun->blocksize;
 795                 return (list->lun->lun);
 796         }
 797         if (idx >= list->ncscd)
 798                 return (UINT64_MAX);
 799         return (tpcl_resolve(list->init_port, &list->cscd[idx], ss));
 800 }
 801
 802 static int
 803 tpc_process_b2b(struct tpc_list *list)
 804 {
 805         struct scsi_ec_segment_b2b *seg;
 806         struct scsi_ec_cscd_dtsp *sdstp, *ddstp;
 807         struct tpc_io *tior, *tiow;
 808         struct runl run, *prun;
 809         uint64_t sl, dl;
 810         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
 811         int numlba;
 812         uint32_t srcblock, dstblock;
 813
 814         if (list->stage == 1) {
 815                 while ((tior = TAILQ_FIRST(&list->allio)) != NULL) {
 816                         TAILQ_REMOVE(&list->allio, tior, links);
 817                         ctl_free_io(tior->io);
 818                         free(tior, M_CTL);
 819                 }
 820                 free(list->buf, M_CTL);
 821                 if (list->abort) {
 822                         ctl_set_task_aborted(list->ctsio);
 823                         return (CTL_RETVAL_ERROR);
 824                 } else if (list->error) {
 825                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 826                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 827                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
 828                         return (CTL_RETVAL_ERROR);
 829                 }
 830                 list->cursectors += list->segsectors;
 831                 list->curbytes += list->segbytes;
 832                 return (CTL_RETVAL_COMPLETE);
 833         }
 834
 835         TAILQ_INIT(&list->allio);
 836         seg = (struct scsi_ec_segment_b2b *)list->seg[list->curseg];
 837         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), &srcblock);
 838         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), &dstblock);
 839         if (sl >= CTL_MAX_LUNS || dl >= CTL_MAX_LUNS) {
 840                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 841                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 842                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
 843                 return (CTL_RETVAL_ERROR);
 844         }
 845         sdstp = &list->cscd[scsi_2btoul(seg->src_cscd)].dtsp;
 846         if (scsi_3btoul(sdstp->block_length) != 0)
 847                 srcblock = scsi_3btoul(sdstp->block_length);
 848         ddstp = &list->cscd[scsi_2btoul(seg->dst_cscd)].dtsp;
 849         if (scsi_3btoul(ddstp->block_length) != 0)
 850                 dstblock = scsi_3btoul(ddstp->block_length);
 851         numlba = scsi_2btoul(seg->number_of_blocks);
 852         if (seg->flags & EC_SEG_DC)
 853                 numbytes = (off_t)numlba * dstblock;
 854         else
 855                 numbytes = (off_t)numlba * srcblock;
 856         srclba = scsi_8btou64(seg->src_lba);
 857         dstlba = scsi_8btou64(seg->dst_lba);
 858
 859 //      printf("Copy %ju bytes from %ju @ %ju to %ju @ %ju\n",
 860 //          (uintmax_t)numbytes, sl, scsi_8btou64(seg->src_lba),
 861 //          dl, scsi_8btou64(seg->dst_lba));
 862
 863         if (numbytes == 0)
 864                 return (CTL_RETVAL_COMPLETE);
 865
 866         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
 867                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 868                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 869                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
 870                 return (CTL_RETVAL_ERROR);
 871         }
 872
 873         list->buf = malloc(numbytes, M_CTL, M_WAITOK);
 874         list->segbytes = numbytes;
 875         list->segsectors = numbytes / dstblock;
 876         donebytes = 0;
 877         TAILQ_INIT(&run);
 878         prun = &run;
 879         list->tbdio = 1;
 880         while (donebytes < numbytes) {
 881                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
 882
 883                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 884                 TAILQ_INIT(&tior->run);
 885                 tior->list = list;
 886                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
 887                 tior->io = tpcl_alloc_io();
 888                 ctl_scsi_read_write(tior->io,
 889                                     /*data_ptr*/ &list->buf[donebytes],
 890                                     /*data_len*/ roundbytes,
 891                                     /*read_op*/ 1,
 892                                     /*byte2*/ 0,
 893                                     /*minimum_cdb_size*/ 0,
 894                                     /*lba*/ srclba + donebytes / srcblock,
 895                                     /*num_blocks*/ roundbytes / srcblock,
 896                                     /*tag_type*/ CTL_TAG_SIMPLE,
 897                                     /*control*/ 0);
 898                 tior->io->io_hdr.retries = 3;
 899                 tior->lun = sl;
 900                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 901
 902                 tiow = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 903                 TAILQ_INIT(&tiow->run);
 904                 tiow->list = list;
 905                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
 906                 tiow->io = tpcl_alloc_io();
 907                 ctl_scsi_read_write(tiow->io,
 908                                     /*data_ptr*/ &list->buf[donebytes],
 909                                     /*data_len*/ roundbytes,
 910                                     /*read_op*/ 0,
 911                                     /*byte2*/ 0,
 912                                     /*minimum_cdb_size*/ 0,
 913                                     /*lba*/ dstlba + donebytes / dstblock,
 914                                     /*num_blocks*/ roundbytes / dstblock,
 915                                     /*tag_type*/ CTL_TAG_SIMPLE,
 916                                     /*control*/ 0);
 917                 tiow->io->io_hdr.retries = 3;
 918                 tiow->lun = dl;
 919                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 920
 921                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
 922                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
 923                 prun = &tior->run;
 924                 donebytes += roundbytes;
 925         }
 926
 927         while ((tior = TAILQ_FIRST(&run)) != NULL) {
 928                 TAILQ_REMOVE(&run, tior, rlinks);
 929                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
 930                         panic("tpcl_queue() error");
 931         }
 932
 933         list->stage++;
 934         return (CTL_RETVAL_QUEUED);
 935 }
 936
 937 static int
 938 tpc_process_verify(struct tpc_list *list)
 939 {
 940         struct scsi_ec_segment_verify *seg;
 941         struct tpc_io *tio;
 942         uint64_t sl;
 943
 944         if (list->stage == 1) {
 945                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
 946                         TAILQ_REMOVE(&list->allio, tio, links);
 947                         ctl_free_io(tio->io);
 948                         free(tio, M_CTL);
 949                 }
 950                 if (list->abort) {
 951                         ctl_set_task_aborted(list->ctsio);
 952                         return (CTL_RETVAL_ERROR);
 953                 } else if (list->error) {
 954                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 955                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 956                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
 957                         return (CTL_RETVAL_ERROR);
 958                 } else
 959                         return (CTL_RETVAL_COMPLETE);
 960         }
 961
 962         TAILQ_INIT(&list->allio);
 963         seg = (struct scsi_ec_segment_verify *)list->seg[list->curseg];
 964         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), NULL);
 965         if (sl >= CTL_MAX_LUNS) {
 966                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 967                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 968                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
 969                 return (CTL_RETVAL_ERROR);
 970         }
 971
 972 //      printf("Verify %ju\n", sl);
 973
 974         if ((seg->tur & 0x01) == 0)
 975                 return (CTL_RETVAL_COMPLETE);
 976
 977         list->tbdio = 1;
 978         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
 979         TAILQ_INIT(&tio->run);
 980         tio->list = list;
 981         TAILQ_INSERT_TAIL(&list->allio, tio, links);
 982         tio->io = tpcl_alloc_io();
 983         ctl_scsi_tur(tio->io, /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
 984         tio->io->io_hdr.retries = 3;
 985         tio->lun = sl;
 986         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
 987         list->stage++;
 988         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
 989                 panic("tpcl_queue() error");
 990         return (CTL_RETVAL_QUEUED);
 991 }
 992
 993 static int
 994 tpc_process_register_key(struct tpc_list *list)
 995 {
 996         struct scsi_ec_segment_register_key *seg;
 997         struct tpc_io *tio;
 998         uint64_t dl;
 999         int datalen;
1000
1001         if (list->stage == 1) {
1002                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1003                         TAILQ_REMOVE(&list->allio, tio, links);
1004                         ctl_free_io(tio->io);
1005                         free(tio, M_CTL);
1006                 }
1007                 free(list->buf, M_CTL);
1008                 if (list->abort) {
1009                         ctl_set_task_aborted(list->ctsio);
1010                         return (CTL_RETVAL_ERROR);
1011                 } else if (list->error) {
1012                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1013                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1014                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1015                         return (CTL_RETVAL_ERROR);
1016                 } else
1017                         return (CTL_RETVAL_COMPLETE);
1018         }
1019
1020         TAILQ_INIT(&list->allio);
1021         seg = (struct scsi_ec_segment_register_key *)list->seg[list->curseg];
1022         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), NULL);
1023         if (dl >= CTL_MAX_LUNS) {
1024                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1025                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1026                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
1027                 return (CTL_RETVAL_ERROR);
1028         }
1029
1030 //      printf("Register Key %ju\n", dl);
1031
1032         list->tbdio = 1;
1033         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1034         TAILQ_INIT(&tio->run);
1035         tio->list = list;
1036         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1037         tio->io = tpcl_alloc_io();
1038         datalen = sizeof(struct scsi_per_res_out_parms);
1039         list->buf = malloc(datalen, M_CTL, M_WAITOK);
1040         ctl_scsi_persistent_res_out(tio->io,
1041             list->buf, datalen, SPRO_REGISTER, -1,
1042             scsi_8btou64(seg->res_key), scsi_8btou64(seg->sa_res_key),
1043             /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1044         tio->io->io_hdr.retries = 3;
1045         tio->lun = dl;
1046         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1047         list->stage++;
1048         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1049                 panic("tpcl_queue() error");
1050         return (CTL_RETVAL_QUEUED);
1051 }
1052
1053 static off_t
1054 tpc_ranges_length(struct scsi_range_desc *range, int nrange)
1055 {
1056         off_t length = 0;
1057         int r;
1058
1059         for (r = 0; r < nrange; r++)
1060                 length += scsi_4btoul(range[r].length);
1061         return (length);
1062 }
1063
1064 static int
1065 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1066     int *srange, off_t *soffset)
1067 {
1068         off_t off;
1069         int r;
1070
1071         r = 0;
1072         off = 0;
1073         while (r < nrange) {
1074                 if (skip - off < scsi_4btoul(range[r].length)) {
1075                         *srange = r;
1076                         *soffset = skip - off;
1077                         return (0);
1078                 }
1079                 off += scsi_4btoul(range[r].length);
1080                 r++;
1081         }
1082         return (-1);
1083 }
1084
1085 static int
1086 tpc_process_wut(struct tpc_list *list)
1087 {
1088         struct tpc_io *tio, *tior, *tiow;
1089         struct runl run, *prun;
1090         int drange, srange;
1091         off_t doffset, soffset;
1092         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1093         uint32_t srcblock, dstblock;
1094
1095         if (list->stage > 0) {
1096                 /* Cleanup after previous rounds. */
1097                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1098                         TAILQ_REMOVE(&list->allio, tio, links);
1099                         ctl_free_io(tio->io);
1100                         free(tio, M_CTL);
1101                 }
1102                 free(list->buf, M_CTL);
1103                 if (list->abort) {
1104                         ctl_set_task_aborted(list->ctsio);
1105                         return (CTL_RETVAL_ERROR);
1106                 } else if (list->error) {
1107                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1108                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1109                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1110                         return (CTL_RETVAL_ERROR);
1111                 }
1112                 list->cursectors += list->segsectors;
1113                 list->curbytes += list->segbytes;
1114         }
1115
1116         /* Check where we are on destination ranges list. */
1117         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1118             &drange, &doffset) != 0)
1119                 return (CTL_RETVAL_COMPLETE);
1120         dstblock = list->lun->be_lun->blocksize;
1121
1122         /* Check where we are on source ranges list. */
1123         srcblock = list->token->blocksize;
1124         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1125             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1126             &srange, &soffset) != 0) {
1127                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1128                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1129                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1130                 return (CTL_RETVAL_ERROR);
1131         }
1132
1133         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1134         numbytes = srcblock * omin(TPC_MAX_IOCHUNK_SIZE / srcblock,
1135             (scsi_4btoul(list->token->range[srange].length) - soffset));
1136         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1137         numbytes = omin(numbytes,
1138             dstblock * omin(TPC_MAX_IOCHUNK_SIZE / dstblock,
1139             (scsi_4btoul(list->range[drange].length) - doffset)));
1140
1141         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1142                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1143                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1144                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1145                 return (CTL_RETVAL_ERROR);
1146         }
1147
1148         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1149             (list->token == NULL ? M_ZERO : 0));
1150         list->segbytes = numbytes;
1151         list->segsectors = numbytes / dstblock;
1152 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1153 //    srclba, dstlba);
1154         donebytes = 0;
1155         TAILQ_INIT(&run);
1156         prun = &run;
1157         list->tbdio = 1;
1158         TAILQ_INIT(&list->allio);
1159         while (donebytes < numbytes) {
1160                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
1161
1162                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1163                 TAILQ_INIT(&tior->run);
1164                 tior->list = list;
1165                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1166                 tior->io = tpcl_alloc_io();
1167                 ctl_scsi_read_write(tior->io,
1168                                     /*data_ptr*/ &list->buf[donebytes],
1169                                     /*data_len*/ roundbytes,
1170                                     /*read_op*/ 1,
1171                                     /*byte2*/ 0,
1172                                     /*minimum_cdb_size*/ 0,
1173                                     /*lba*/ srclba + donebytes / srcblock,
1174                                     /*num_blocks*/ roundbytes / srcblock,
1175                                     /*tag_type*/ CTL_TAG_SIMPLE,
1176                                     /*control*/ 0);
1177                 tior->io->io_hdr.retries = 3;
1178                 tior->lun = list->token->lun;
1179                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1180
1181                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1182                 TAILQ_INIT(&tiow->run);
1183                 tiow->list = list;
1184                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1185                 tiow->io = tpcl_alloc_io();
1186                 ctl_scsi_read_write(tiow->io,
1187                                     /*data_ptr*/ &list->buf[donebytes],
1188                                     /*data_len*/ roundbytes,
1189                                     /*read_op*/ 0,
1190                                     /*byte2*/ 0,
1191                                     /*minimum_cdb_size*/ 0,
1192                                     /*lba*/ dstlba + donebytes / dstblock,
1193                                     /*num_blocks*/ roundbytes / dstblock,
1194                                     /*tag_type*/ CTL_TAG_SIMPLE,
1195                                     /*control*/ 0);
1196                 tiow->io->io_hdr.retries = 3;
1197                 tiow->lun = list->lun->lun;
1198                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1199
1200                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1201                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
1202                 prun = &tior->run;
1203                 donebytes += roundbytes;
1204         }
1205
1206         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1207                 TAILQ_REMOVE(&run, tior, rlinks);
1208                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1209                         panic("tpcl_queue() error");
1210         }
1211
1212         list->stage++;
1213         return (CTL_RETVAL_QUEUED);
1214 }
1215
1216 static int
1217 tpc_process_zero_wut(struct tpc_list *list)
1218 {
1219         struct tpc_io *tio, *tiow;
1220         struct runl run, *prun;
1221         int r;
1222         uint32_t dstblock, len;
1223
1224         if (list->stage > 0) {
1225 complete:
1226                 /* Cleanup after previous rounds. */
1227                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1228                         TAILQ_REMOVE(&list->allio, tio, links);
1229                         ctl_free_io(tio->io);
1230                         free(tio, M_CTL);
1231                 }
1232                 free(list->buf, M_CTL);
1233                 if (list->abort) {
1234                         ctl_set_task_aborted(list->ctsio);
1235                         return (CTL_RETVAL_ERROR);
1236                 } else if (list->error) {
1237                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1238                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1239                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1240                         return (CTL_RETVAL_ERROR);
1241                 }
1242                 list->cursectors += list->segsectors;
1243                 list->curbytes += list->segbytes;
1244                 return (CTL_RETVAL_COMPLETE);
1245         }
1246
1247         dstblock = list->lun->be_lun->blocksize;
1248         list->buf = malloc(dstblock, M_CTL, M_WAITOK | M_ZERO);
1249         TAILQ_INIT(&run);
1250         prun = &run;
1251         list->tbdio = 1;
1252         TAILQ_INIT(&list->allio);
1253         list->segsectors = 0;
1254         for (r = 0; r < list->nrange; r++) {
1255                 len = scsi_4btoul(list->range[r].length);
1256                 if (len == 0)
1257                         continue;
1258
1259                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1260                 TAILQ_INIT(&tiow->run);
1261                 tiow->list = list;
1262                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1263                 tiow->io = tpcl_alloc_io();
1264                 ctl_scsi_write_same(tiow->io,
1265                                     /*data_ptr*/ list->buf,
1266                                     /*data_len*/ dstblock,
1267                                     /*byte2*/ 0,
1268                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1269                                     /*num_blocks*/ len,
1270                                     /*tag_type*/ CTL_TAG_SIMPLE,
1271                                     /*control*/ 0);
1272                 tiow->io->io_hdr.retries = 3;
1273                 tiow->lun = list->lun->lun;
1274                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1275
1276                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1277                 prun = &tiow->run;
1278                 list->segsectors += len;
1279         }
1280         list->segbytes = list->segsectors * dstblock;
1281
1282         if (TAILQ_EMPTY(&run))
1283                 goto complete;
1284
1285         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1286                 TAILQ_REMOVE(&run, tiow, rlinks);
1287                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1288                         panic("tpcl_queue() error");
1289         }
1290
1291         list->stage++;
1292         return (CTL_RETVAL_QUEUED);
1293 }
1294
1295 static void
1296 tpc_process(struct tpc_list *list)
1297 {
1298         struct ctl_lun *lun = list->lun;
1299         struct scsi_ec_segment *seg;
1300         struct ctl_scsiio *ctsio = list->ctsio;
1301         int retval = CTL_RETVAL_COMPLETE;
1302
1303         if (list->service_action == EC_WUT) {
1304                 if (list->token != NULL)
1305                         retval = tpc_process_wut(list);
1306                 else
1307                         retval = tpc_process_zero_wut(list);
1308                 if (retval == CTL_RETVAL_QUEUED)
1309                         return;
1310                 if (retval == CTL_RETVAL_ERROR) {
1311                         list->error = 1;
1312                         goto done;
1313                 }
1314         } else {
1315 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1316                 while (list->curseg < list->nseg) {
1317                         seg = list->seg[list->curseg];
1318                         switch (seg->type_code) {
1319                         case EC_SEG_B2B:
1320                                 retval = tpc_process_b2b(list);
1321                                 break;
1322                         case EC_SEG_VERIFY:
1323                                 retval = tpc_process_verify(list);
1324                                 break;
1325                         case EC_SEG_REGISTER_KEY:
1326                                 retval = tpc_process_register_key(list);
1327                                 break;
1328                         default:
1329                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1330                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1331                                     /*asc*/ 0x26, /*ascq*/ 0x09, SSD_ELEM_NONE);
1332                                 goto done;
1333                         }
1334                         if (retval == CTL_RETVAL_QUEUED)
1335                                 return;
1336                         if (retval == CTL_RETVAL_ERROR) {
1337                                 list->error = 1;
1338                                 goto done;
1339                         }
1340                         list->curseg++;
1341                         list->stage = 0;
1342                 }
1343         }
1344
1345         ctl_set_success(ctsio);
1346
1347 done:
1348 //printf("ZZZ done\n");
1349         free(list->params, M_CTL);
1350         list->params = NULL;
1351         if (list->token) {
1352                 mtx_lock(&control_softc->ctl_lock);
1353                 if (--list->token->active == 0)
1354                         list->token->last_active = time_uptime;
1355                 mtx_unlock(&control_softc->ctl_lock);
1356                 list->token = NULL;
1357         }
1358         mtx_lock(&lun->lun_lock);
1359         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1360                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1361                 free(list, M_CTL);
1362         } else {
1363                 list->completed = 1;
1364                 list->last_active = time_uptime;
1365                 list->sense_data = ctsio->sense_data;
1366                 list->sense_len = ctsio->sense_len;
1367                 list->scsi_status = ctsio->scsi_status;
1368         }
1369         mtx_unlock(&lun->lun_lock);
1370
1371         ctl_done((union ctl_io *)ctsio);
1372 }
1373
1374 /*
1375  * For any sort of check condition, busy, etc., we just retry.  We do not
1376  * decrement the retry count for unit attention type errors.  These are
1377  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1378  * we could end up with situations where a command will succeed in some
1379  * situations and fail in others, depending on whether a unit attention is
1380  * pending.  Also, some of our error recovery actions, most notably the
1381  * LUN reset action, will cause a unit attention.
1382  *
1383  * We can add more detail here later if necessary.
1384  */
1385 static tpc_error_action
1386 tpc_checkcond_parse(union ctl_io *io)
1387 {
1388         tpc_error_action error_action;
1389         int error_code, sense_key, asc, ascq;
1390
1391         /*
1392          * Default to retrying the command.
1393          */
1394         error_action = TPC_ERR_RETRY;
1395
1396         scsi_extract_sense_len(&io->scsiio.sense_data,
1397                                io->scsiio.sense_len,
1398                                &error_code,
1399                                &sense_key,
1400                                &asc,
1401                                &ascq,
1402                                /*show_errors*/ 1);
1403
1404         switch (error_code) {
1405         case SSD_DEFERRED_ERROR:
1406         case SSD_DESC_DEFERRED_ERROR:
1407                 error_action |= TPC_ERR_NO_DECREMENT;
1408                 break;
1409         case SSD_CURRENT_ERROR:
1410         case SSD_DESC_CURRENT_ERROR:
1411         default:
1412                 switch (sense_key) {
1413                 case SSD_KEY_UNIT_ATTENTION:
1414                         error_action |= TPC_ERR_NO_DECREMENT;
1415                         break;
1416                 case SSD_KEY_HARDWARE_ERROR:
1417                         /*
1418                          * This is our generic "something bad happened"
1419                          * error code.  It often isn't recoverable.
1420                          */
1421                         if ((asc == 0x44) && (ascq == 0x00))
1422                                 error_action = TPC_ERR_FAIL;
1423                         break;
1424                 case SSD_KEY_NOT_READY:
1425                         /*
1426                          * If the LUN is powered down, there likely isn't
1427                          * much point in retrying right now.
1428                          */
1429                         if ((asc == 0x04) && (ascq == 0x02))
1430                                 error_action = TPC_ERR_FAIL;
1431                         /*
1432                          * If the LUN is offline, there probably isn't much
1433                          * point in retrying, either.
1434                          */
1435                         if ((asc == 0x04) && (ascq == 0x03))
1436                                 error_action = TPC_ERR_FAIL;
1437                         break;
1438                 }
1439         }
1440         return (error_action);
1441 }
1442
1443 static tpc_error_action
1444 tpc_error_parse(union ctl_io *io)
1445 {
1446         tpc_error_action error_action = TPC_ERR_RETRY;
1447
1448         switch (io->io_hdr.io_type) {
1449         case CTL_IO_SCSI:
1450                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1451                 case CTL_SCSI_ERROR:
1452                         switch (io->scsiio.scsi_status) {
1453                         case SCSI_STATUS_CHECK_COND:
1454                                 error_action = tpc_checkcond_parse(io);
1455                                 break;
1456                         default:
1457                                 break;
1458                         }
1459                         break;
1460                 default:
1461                         break;
1462                 }
1463                 break;
1464         case CTL_IO_TASK:
1465                 break;
1466         default:
1467                 panic("%s: invalid ctl_io type %d\n", __func__,
1468                       io->io_hdr.io_type);
1469                 break;
1470         }
1471         return (error_action);
1472 }
1473
1474 void
1475 tpc_done(union ctl_io *io)
1476 {
1477         struct tpc_io *tio, *tior;
1478
1479         /*
1480          * Very minimal retry logic.  We basically retry if we got an error
1481          * back, and the retry count is greater than 0.  If we ever want
1482          * more sophisticated initiator type behavior, the CAM error
1483          * recovery code in ../common might be helpful.
1484          */
1485         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1486         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1487          && (io->io_hdr.retries > 0)) {
1488                 ctl_io_status old_status;
1489                 tpc_error_action error_action;
1490
1491                 error_action = tpc_error_parse(io);
1492                 switch (error_action & TPC_ERR_MASK) {
1493                 case TPC_ERR_FAIL:
1494                         break;
1495                 case TPC_ERR_RETRY:
1496                 default:
1497                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1498                                 io->io_hdr.retries--;
1499                         old_status = io->io_hdr.status;
1500                         io->io_hdr.status = CTL_STATUS_NONE;
1501                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1502                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1503                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1504                                 printf("%s: error returned from ctl_queue()!\n",
1505                                        __func__);
1506                                 io->io_hdr.status = old_status;
1507                         } else
1508                                 return;
1509                 }
1510         }
1511
1512         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1513                 tio->list->error = 1;
1514         else
1515                 atomic_add_int(&tio->list->curops, 1);
1516         if (!tio->list->error && !tio->list->abort) {
1517                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1518                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1519                         atomic_add_int(&tio->list->tbdio, 1);
1520                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1521                                 panic("tpcl_queue() error");
1522                 }
1523         }
1524         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1525                 tpc_process(tio->list);
1526 }
1527
1528 int
1529 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1530 {
1531         struct scsi_extended_copy *cdb;
1532         struct scsi_extended_copy_lid1_data *data;
1533         struct ctl_lun *lun;
1534         struct tpc_list *list, *tlist;
1535         uint8_t *ptr;
1536         char *value;
1537         int len, off, lencscd, lenseg, leninl, nseg;
1538
1539         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1540
1541         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1542         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1543         len = scsi_4btoul(cdb->length);
1544
1545         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1546             len > sizeof(struct scsi_extended_copy_lid1_data) +
1547             TPC_MAX_LIST + TPC_MAX_INLINE) {
1548                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1549                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1550                 goto done;
1551         }
1552
1553         /*
1554          * If we've got a kernel request that hasn't been malloced yet,
1555          * malloc it and tell the caller the data buffer is here.
1556          */
1557         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1558                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1559                 ctsio->kern_data_len = len;
1560                 ctsio->kern_total_len = len;
1561                 ctsio->kern_data_resid = 0;
1562                 ctsio->kern_rel_offset = 0;
1563                 ctsio->kern_sg_entries = 0;
1564                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1565                 ctsio->be_move_done = ctl_config_move_done;
1566                 ctl_datamove((union ctl_io *)ctsio);
1567
1568                 return (CTL_RETVAL_COMPLETE);
1569         }
1570
1571         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1572         lencscd = scsi_2btoul(data->cscd_list_length);
1573         lenseg = scsi_4btoul(data->segment_list_length);
1574         leninl = scsi_4btoul(data->inline_data_length);
1575         if (len < sizeof(struct scsi_extended_copy_lid1_data) +
1576             lencscd + lenseg + leninl ||
1577             leninl > TPC_MAX_INLINE) {
1578                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1579                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1580                 goto done;
1581         }
1582         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1583                 ctl_set_sense(ctsio, /*current_error*/ 1,
1584                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1585                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1586                 goto done;
1587         }
1588         if (lencscd + lenseg > TPC_MAX_LIST) {
1589                 ctl_set_param_len_error(ctsio);
1590                 goto done;
1591         }
1592
1593         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1594         list->service_action = cdb->service_action;
1595         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1596         if (value != NULL && strcmp(value, "on") == 0)
1597                 list->init_port = -1;
1598         else
1599                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1600         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1601         list->list_id = data->list_identifier;
1602         list->flags = data->flags;
1603         list->params = ctsio->kern_data_ptr;
1604         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1605         ptr = &data->data[lencscd];
1606         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1607                 if (nseg >= TPC_MAX_SEGS) {
1608                         free(list, M_CTL);
1609                         ctl_set_sense(ctsio, /*current_error*/ 1,
1610                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1611                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1612                         goto done;
1613                 }
1614                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1615                 off += sizeof(struct scsi_ec_segment) +
1616                     scsi_2btoul(list->seg[nseg]->descr_length);
1617         }
1618         list->inl = &data->data[lencscd + lenseg];
1619         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1620         list->nseg = nseg;
1621         list->leninl = leninl;
1622         list->ctsio = ctsio;
1623         list->lun = lun;
1624         mtx_lock(&lun->lun_lock);
1625         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1626                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1627                 if (tlist != NULL && !tlist->completed) {
1628                         mtx_unlock(&lun->lun_lock);
1629                         free(list, M_CTL);
1630                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1631                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1632                             /*bit*/ 0);
1633                         goto done;
1634                 }
1635                 if (tlist != NULL) {
1636                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1637                         free(tlist, M_CTL);
1638                 }
1639         }
1640         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1641         mtx_unlock(&lun->lun_lock);
1642
1643         tpc_process(list);
1644         return (CTL_RETVAL_COMPLETE);
1645
1646 done:
1647         ctl_done((union ctl_io *)ctsio);
1648         return (CTL_RETVAL_COMPLETE);
1649 }
1650
1651 int
1652 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1653 {
1654         struct scsi_extended_copy *cdb;
1655         struct scsi_extended_copy_lid4_data *data;
1656         struct ctl_lun *lun;
1657         struct tpc_list *list, *tlist;
1658         uint8_t *ptr;
1659         char *value;
1660         int len, off, lencscd, lenseg, leninl, nseg;
1661
1662         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1663
1664         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1665         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1666         len = scsi_4btoul(cdb->length);
1667
1668         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1669             len > sizeof(struct scsi_extended_copy_lid4_data) +
1670             TPC_MAX_LIST + TPC_MAX_INLINE) {
1671                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1672                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1673                 goto done;
1674         }
1675
1676         /*
1677          * If we've got a kernel request that hasn't been malloced yet,
1678          * malloc it and tell the caller the data buffer is here.
1679          */
1680         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1681                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1682                 ctsio->kern_data_len = len;
1683                 ctsio->kern_total_len = len;
1684                 ctsio->kern_data_resid = 0;
1685                 ctsio->kern_rel_offset = 0;
1686                 ctsio->kern_sg_entries = 0;
1687                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1688                 ctsio->be_move_done = ctl_config_move_done;
1689                 ctl_datamove((union ctl_io *)ctsio);
1690
1691                 return (CTL_RETVAL_COMPLETE);
1692         }
1693
1694         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1695         lencscd = scsi_2btoul(data->cscd_list_length);
1696         lenseg = scsi_2btoul(data->segment_list_length);
1697         leninl = scsi_2btoul(data->inline_data_length);
1698         if (len < sizeof(struct scsi_extended_copy_lid4_data) +
1699             lencscd + lenseg + leninl ||
1700             leninl > TPC_MAX_INLINE) {
1701                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1702                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1703                 goto done;
1704         }
1705         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1706                 ctl_set_sense(ctsio, /*current_error*/ 1,
1707                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1708                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1709                 goto done;
1710         }
1711         if (lencscd + lenseg > TPC_MAX_LIST) {
1712                 ctl_set_param_len_error(ctsio);
1713                 goto done;
1714         }
1715
1716         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1717         list->service_action = cdb->service_action;
1718         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1719         if (value != NULL && strcmp(value, "on") == 0)
1720                 list->init_port = -1;
1721         else
1722                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1723         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1724         list->list_id = scsi_4btoul(data->list_identifier);
1725         list->flags = data->flags;
1726         list->params = ctsio->kern_data_ptr;
1727         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1728         ptr = &data->data[lencscd];
1729         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1730                 if (nseg >= TPC_MAX_SEGS) {
1731                         free(list, M_CTL);
1732                         ctl_set_sense(ctsio, /*current_error*/ 1,
1733                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1734                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1735                         goto done;
1736                 }
1737                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1738                 off += sizeof(struct scsi_ec_segment) +
1739                     scsi_2btoul(list->seg[nseg]->descr_length);
1740         }
1741         list->inl = &data->data[lencscd + lenseg];
1742         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1743         list->nseg = nseg;
1744         list->leninl = leninl;
1745         list->ctsio = ctsio;
1746         list->lun = lun;
1747         mtx_lock(&lun->lun_lock);
1748         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1749                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1750                 if (tlist != NULL && !tlist->completed) {
1751                         mtx_unlock(&lun->lun_lock);
1752                         free(list, M_CTL);
1753                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1754                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1755                             /*bit*/ 0);
1756                         goto done;
1757                 }
1758                 if (tlist != NULL) {
1759                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1760                         free(tlist, M_CTL);
1761                 }
1762         }
1763         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1764         mtx_unlock(&lun->lun_lock);
1765
1766         tpc_process(list);
1767         return (CTL_RETVAL_COMPLETE);
1768
1769 done:
1770         ctl_done((union ctl_io *)ctsio);
1771         return (CTL_RETVAL_COMPLETE);
1772 }
1773
1774 static void
1775 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1776     struct scsi_token *token)
1777 {
1778         static int id = 0;
1779         struct scsi_vpd_id_descriptor *idd = NULL;
1780         struct scsi_ec_cscd_id *cscd;
1781         struct scsi_read_capacity_data_long *dtsd;
1782         int targid_len;
1783
1784         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1785         scsi_ulto2b(0x01f8, token->length);
1786         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1787         if (lun->lun_devid)
1788                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1789                     lun->lun_devid->data, lun->lun_devid->len,
1790                     scsi_devid_is_lun_naa);
1791         if (idd == NULL && lun->lun_devid)
1792                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1793                     lun->lun_devid->data, lun->lun_devid->len,
1794                     scsi_devid_is_lun_eui64);
1795         if (idd != NULL) {
1796                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1797                 cscd->type_code = EC_CSCD_ID;
1798                 cscd->luidt_pdt = T_DIRECT;
1799                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1800                 scsi_ulto3b(lun->be_lun->blocksize, cscd->dtsp.block_length);
1801         }
1802         scsi_u64to8b(0, &token->body[40]); /* XXX: Should be 128bit value. */
1803         scsi_u64to8b(len, &token->body[48]);
1804
1805         /* ROD token device type specific data (RC16 without first field) */
1806         dtsd = (struct scsi_read_capacity_data_long *)&token->body[88 - 8];
1807         scsi_ulto4b(lun->be_lun->blocksize, dtsd->length);
1808         dtsd->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
1809         scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, dtsd->lalba_lbp);
1810         if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
1811                 dtsd->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ;
1812
1813         if (port->target_devid) {
1814                 targid_len = port->target_devid->len;
1815                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1816         } else
1817                 targid_len = 32;
1818         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1819 };
1820
1821 int
1822 ctl_populate_token(struct ctl_scsiio *ctsio)
1823 {
1824         struct scsi_populate_token *cdb;
1825         struct scsi_populate_token_data *data;
1826         struct ctl_lun *lun;
1827         struct ctl_port *port;
1828         struct tpc_list *list, *tlist;
1829         struct tpc_token *token;
1830         int len, lendesc;
1831
1832         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1833
1834         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1835         port = control_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)];
1836         cdb = (struct scsi_populate_token *)ctsio->cdb;
1837         len = scsi_4btoul(cdb->length);
1838
1839         if (len < sizeof(struct scsi_populate_token_data) ||
1840             len > sizeof(struct scsi_populate_token_data) +
1841              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1842                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1843                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1844                 goto done;
1845         }
1846
1847         /*
1848          * If we've got a kernel request that hasn't been malloced yet,
1849          * malloc it and tell the caller the data buffer is here.
1850          */
1851         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1852                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1853                 ctsio->kern_data_len = len;
1854                 ctsio->kern_total_len = len;
1855                 ctsio->kern_data_resid = 0;
1856                 ctsio->kern_rel_offset = 0;
1857                 ctsio->kern_sg_entries = 0;
1858                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1859                 ctsio->be_move_done = ctl_config_move_done;
1860                 ctl_datamove((union ctl_io *)ctsio);
1861
1862                 return (CTL_RETVAL_COMPLETE);
1863         }
1864
1865         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1866         lendesc = scsi_2btoul(data->range_descriptor_length);
1867         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
1868                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1869                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1870                 goto done;
1871         }
1872 /*
1873         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
1874             scsi_4btoul(cdb->list_identifier),
1875             data->flags, scsi_4btoul(data->inactivity_timeout),
1876             scsi_4btoul(data->rod_type),
1877             scsi_2btoul(data->range_descriptor_length));
1878 */
1879         if ((data->flags & EC_PT_RTV) &&
1880             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
1881                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1882                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
1883                 goto done;
1884         }
1885
1886         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1887         list->service_action = cdb->service_action;
1888         list->init_port = ctsio->io_hdr.nexus.targ_port;
1889         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1890         list->list_id = scsi_4btoul(cdb->list_identifier);
1891         list->flags = data->flags;
1892         list->ctsio = ctsio;
1893         list->lun = lun;
1894         mtx_lock(&lun->lun_lock);
1895         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1896         if (tlist != NULL && !tlist->completed) {
1897                 mtx_unlock(&lun->lun_lock);
1898                 free(list, M_CTL);
1899                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1900                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1901                     /*bit*/ 0);
1902                 goto done;
1903         }
1904         if (tlist != NULL) {
1905                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1906                 free(tlist, M_CTL);
1907         }
1908         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1909         mtx_unlock(&lun->lun_lock);
1910
1911         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
1912         token->lun = lun->lun;
1913         token->blocksize = lun->be_lun->blocksize;
1914         token->params = ctsio->kern_data_ptr;
1915         token->range = &data->desc[0];
1916         token->nrange = scsi_2btoul(data->range_descriptor_length) /
1917             sizeof(struct scsi_range_desc);
1918         list->cursectors = tpc_ranges_length(token->range, token->nrange);
1919         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
1920         tpc_create_token(lun, port, list->curbytes,
1921             (struct scsi_token *)token->token);
1922         token->active = 0;
1923         token->last_active = time_uptime;
1924         token->timeout = scsi_4btoul(data->inactivity_timeout);
1925         if (token->timeout == 0)
1926                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
1927         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
1928                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
1929         else if (token->timeout > TPC_MAX_TOKEN_TIMEOUT) {
1930                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1931                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
1932                     /*bit*/ 0);
1933         }
1934         memcpy(list->res_token, token->token, sizeof(list->res_token));
1935         list->res_token_valid = 1;
1936         list->curseg = 0;
1937         list->completed = 1;
1938         list->last_active = time_uptime;
1939         mtx_lock(&control_softc->ctl_lock);
1940         TAILQ_INSERT_TAIL(&control_softc->tpc_tokens, token, links);
1941         mtx_unlock(&control_softc->ctl_lock);
1942         ctl_set_success(ctsio);
1943         ctl_done((union ctl_io *)ctsio);
1944         return (CTL_RETVAL_COMPLETE);
1945
1946 done:
1947         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED)
1948                 free(ctsio->kern_data_ptr, M_CTL);
1949         ctl_done((union ctl_io *)ctsio);
1950         return (CTL_RETVAL_COMPLETE);
1951 }
1952
1953 int
1954 ctl_write_using_token(struct ctl_scsiio *ctsio)
1955 {
1956         struct scsi_write_using_token *cdb;
1957         struct scsi_write_using_token_data *data;
1958         struct ctl_lun *lun;
1959         struct tpc_list *list, *tlist;
1960         struct tpc_token *token;
1961         int len, lendesc;
1962
1963         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
1964
1965         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1966         cdb = (struct scsi_write_using_token *)ctsio->cdb;
1967         len = scsi_4btoul(cdb->length);
1968
1969         if (len < sizeof(struct scsi_populate_token_data) ||
1970             len > sizeof(struct scsi_populate_token_data) +
1971              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1972                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1973                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1974                 goto done;
1975         }
1976
1977         /*
1978          * If we've got a kernel request that hasn't been malloced yet,
1979          * malloc it and tell the caller the data buffer is here.
1980          */
1981         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1982                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1983                 ctsio->kern_data_len = len;
1984                 ctsio->kern_total_len = len;
1985                 ctsio->kern_data_resid = 0;
1986                 ctsio->kern_rel_offset = 0;
1987                 ctsio->kern_sg_entries = 0;
1988                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1989                 ctsio->be_move_done = ctl_config_move_done;
1990                 ctl_datamove((union ctl_io *)ctsio);
1991
1992                 return (CTL_RETVAL_COMPLETE);
1993         }
1994
1995         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
1996         lendesc = scsi_2btoul(data->range_descriptor_length);
1997         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
1998                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1999                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
2000                 goto done;
2001         }
2002 /*
2003         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2004             scsi_4btoul(cdb->list_identifier),
2005             data->flags, scsi_8btou64(data->offset_into_rod),
2006             scsi_2btoul(data->range_descriptor_length));
2007 */
2008         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2009         list->service_action = cdb->service_action;
2010         list->init_port = ctsio->io_hdr.nexus.targ_port;
2011         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
2012         list->list_id = scsi_4btoul(cdb->list_identifier);
2013         list->flags = data->flags;
2014         list->params = ctsio->kern_data_ptr;
2015         list->range = &data->desc[0];
2016         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2017             sizeof(struct scsi_range_desc);
2018         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2019         list->ctsio = ctsio;
2020         list->lun = lun;
2021         mtx_lock(&lun->lun_lock);
2022         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2023         if (tlist != NULL && !tlist->completed) {
2024                 mtx_unlock(&lun->lun_lock);
2025                 free(list, M_CTL);
2026                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2027                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2028                     /*bit*/ 0);
2029                 goto done;
2030         }
2031         if (tlist != NULL) {
2032                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2033                 free(tlist, M_CTL);
2034         }
2035         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2036         mtx_unlock(&lun->lun_lock);
2037
2038         /* Block device zero ROD token -> no token. */
2039         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2040                 tpc_process(list);
2041                 return (CTL_RETVAL_COMPLETE);
2042         }
2043
2044         mtx_lock(&control_softc->ctl_lock);
2045         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2046                 if (memcmp(token->token, data->rod_token,
2047                     sizeof(data->rod_token)) == 0)
2048                         break;
2049         }
2050         if (token != NULL) {
2051                 token->active++;
2052                 list->token = token;
2053                 if (data->flags & EC_WUT_DEL_TKN)
2054                         token->timeout = 0;
2055         }
2056         mtx_unlock(&control_softc->ctl_lock);
2057         if (token == NULL) {
2058                 mtx_lock(&lun->lun_lock);
2059                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2060                 mtx_unlock(&lun->lun_lock);
2061                 free(list, M_CTL);
2062                 ctl_set_sense(ctsio, /*current_error*/ 1,
2063                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2064                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2065                 goto done;
2066         }
2067
2068         tpc_process(list);
2069         return (CTL_RETVAL_COMPLETE);
2070
2071 done:
2072         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED)
2073                 free(ctsio->kern_data_ptr, M_CTL);
2074         ctl_done((union ctl_io *)ctsio);
2075         return (CTL_RETVAL_COMPLETE);
2076 }
2077
2078 int
2079 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2080 {
2081         struct ctl_lun *lun;
2082         struct scsi_receive_rod_token_information *cdb;
2083         struct scsi_receive_copy_status_lid4_data *data;
2084         struct tpc_list *list;
2085         struct tpc_list list_copy;
2086         uint8_t *ptr;
2087         int retval;
2088         int alloc_len, total_len, token_len;
2089         uint32_t list_id;
2090
2091         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2092
2093         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2094         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2095
2096         retval = CTL_RETVAL_COMPLETE;
2097
2098         list_id = scsi_4btoul(cdb->list_identifier);
2099         mtx_lock(&lun->lun_lock);
2100         list = tpc_find_list(lun, list_id,
2101             ctl_get_resindex(&ctsio->io_hdr.nexus));
2102         if (list == NULL) {
2103                 mtx_unlock(&lun->lun_lock);
2104                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2105                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2106                     /*bit*/ 0);
2107                 ctl_done((union ctl_io *)ctsio);
2108                 return (retval);
2109         }
2110         list_copy = *list;
2111         if (list->completed) {
2112                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2113                 free(list, M_CTL);
2114         }
2115         mtx_unlock(&lun->lun_lock);
2116
2117         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2118         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2119         alloc_len = scsi_4btoul(cdb->length);
2120
2121         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2122
2123         ctsio->kern_sg_entries = 0;
2124
2125         if (total_len < alloc_len) {
2126                 ctsio->residual = alloc_len - total_len;
2127                 ctsio->kern_data_len = total_len;
2128                 ctsio->kern_total_len = total_len;
2129         } else {
2130                 ctsio->residual = 0;
2131                 ctsio->kern_data_len = alloc_len;
2132                 ctsio->kern_total_len = alloc_len;
2133         }
2134         ctsio->kern_data_resid = 0;
2135         ctsio->kern_rel_offset = 0;
2136
2137         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2138         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2139             4 + token_len, data->available_data);
2140         data->response_to_service_action = list_copy.service_action;
2141         if (list_copy.completed) {
2142                 if (list_copy.error)
2143                         data->copy_command_status = RCS_CCS_ERROR;
2144                 else if (list_copy.abort)
2145                         data->copy_command_status = RCS_CCS_ABORTED;
2146                 else
2147                         data->copy_command_status = RCS_CCS_COMPLETED;
2148         } else
2149                 data->copy_command_status = RCS_CCS_INPROG_FG;
2150         scsi_ulto2b(list_copy.curops, data->operation_counter);
2151         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2152         data->transfer_count_units = RCS_TC_LBAS;
2153         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2154         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2155         data->length_of_the_sense_data_field = list_copy.sense_len;
2156         data->sense_data_length = list_copy.sense_len;
2157         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2158
2159         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2160         scsi_ulto4b(token_len, &ptr[0]);
2161         if (list_copy.res_token_valid) {
2162                 scsi_ulto2b(0, &ptr[4]);
2163                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2164         }
2165 /*
2166         printf("RRTI(list=%u) valid=%d\n",
2167             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2168 */
2169         ctl_set_success(ctsio);
2170         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2171         ctsio->be_move_done = ctl_config_move_done;
2172         ctl_datamove((union ctl_io *)ctsio);
2173         return (retval);
2174 }
2175
2176 int
2177 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2178 {
2179         struct ctl_lun *lun;
2180         struct scsi_report_all_rod_tokens *cdb;
2181         struct scsi_report_all_rod_tokens_data *data;
2182         struct tpc_token *token;
2183         int retval;
2184         int alloc_len, total_len, tokens, i;
2185
2186         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2187
2188         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2189         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2190
2191         retval = CTL_RETVAL_COMPLETE;
2192
2193         tokens = 0;
2194         mtx_lock(&control_softc->ctl_lock);
2195         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links)
2196                 tokens++;
2197         mtx_unlock(&control_softc->ctl_lock);
2198         if (tokens > 512)
2199                 tokens = 512;
2200
2201         total_len = sizeof(*data) + tokens * 96;
2202         alloc_len = scsi_4btoul(cdb->length);
2203
2204         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2205
2206         ctsio->kern_sg_entries = 0;
2207
2208         if (total_len < alloc_len) {
2209                 ctsio->residual = alloc_len - total_len;
2210                 ctsio->kern_data_len = total_len;
2211                 ctsio->kern_total_len = total_len;
2212         } else {
2213                 ctsio->residual = 0;
2214                 ctsio->kern_data_len = alloc_len;
2215                 ctsio->kern_total_len = alloc_len;
2216         }
2217         ctsio->kern_data_resid = 0;
2218         ctsio->kern_rel_offset = 0;
2219
2220         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2221         i = 0;
2222         mtx_lock(&control_softc->ctl_lock);
2223         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2224                 if (i >= tokens)
2225                         break;
2226                 memcpy(&data->rod_management_token_list[i * 96],
2227                     token->token, 96);
2228                 i++;
2229         }
2230         mtx_unlock(&control_softc->ctl_lock);
2231         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2232 /*
2233         printf("RART tokens=%d\n", i);
2234 */
2235         ctl_set_success(ctsio);
2236         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2237         ctsio->be_move_done = ctl_config_move_done;
2238         ctl_datamove((union ctl_io *)ctsio);
2239         return (retval);
2240 }
2241