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         ctsio->scsi_status = SCSI_STATUS_OK;
 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         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 491         ctsio->be_move_done = ctl_config_move_done;
 492
 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         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 588         ctsio->be_move_done = ctl_config_move_done;
 589
 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         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 660         ctsio->be_move_done = ctl_config_move_done;
 661
 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         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 746         ctsio->be_move_done = ctl_config_move_done;
 747
 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 complete:
 816                 while ((tior = TAILQ_FIRST(&list->allio)) != NULL) {
 817                         TAILQ_REMOVE(&list->allio, tior, links);
 818                         ctl_free_io(tior->io);
 819                         free(tior, M_CTL);
 820                 }
 821                 free(list->buf, M_CTL);
 822                 if (list->abort) {
 823                         ctl_set_task_aborted(list->ctsio);
 824                         return (CTL_RETVAL_ERROR);
 825                 } else if (list->error) {
 826                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 827                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 828                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
 829                         return (CTL_RETVAL_ERROR);
 830                 }
 831                 list->cursectors += list->segsectors;
 832                 list->curbytes += list->segbytes;
 833                 return (CTL_RETVAL_COMPLETE);
 834         }
 835
 836         TAILQ_INIT(&list->allio);
 837         seg = (struct scsi_ec_segment_b2b *)list->seg[list->curseg];
 838         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), &srcblock);
 839         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), &dstblock);
 840         if (sl >= CTL_MAX_LUNS || dl >= CTL_MAX_LUNS) {
 841                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 842                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 843                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
 844                 return (CTL_RETVAL_ERROR);
 845         }
 846         sdstp = &list->cscd[scsi_2btoul(seg->src_cscd)].dtsp;
 847         if (scsi_3btoul(sdstp->block_length) != 0)
 848                 srcblock = scsi_3btoul(sdstp->block_length);
 849         ddstp = &list->cscd[scsi_2btoul(seg->dst_cscd)].dtsp;
 850         if (scsi_3btoul(ddstp->block_length) != 0)
 851                 dstblock = scsi_3btoul(ddstp->block_length);
 852         numlba = scsi_2btoul(seg->number_of_blocks);
 853         if (seg->flags & EC_SEG_DC)
 854                 numbytes = (off_t)numlba * dstblock;
 855         else
 856                 numbytes = (off_t)numlba * srcblock;
 857         srclba = scsi_8btou64(seg->src_lba);
 858         dstlba = scsi_8btou64(seg->dst_lba);
 859
 860 //      printf("Copy %ju bytes from %ju @ %ju to %ju @ %ju\n",
 861 //          (uintmax_t)numbytes, sl, scsi_8btou64(seg->src_lba),
 862 //          dl, scsi_8btou64(seg->dst_lba));
 863
 864         if (numbytes == 0)
 865                 return (CTL_RETVAL_COMPLETE);
 866
 867         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
 868                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 869                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 870                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
 871                 return (CTL_RETVAL_ERROR);
 872         }
 873
 874         list->buf = malloc(numbytes, M_CTL, M_WAITOK);
 875         list->segbytes = numbytes;
 876         list->segsectors = numbytes / dstblock;
 877         donebytes = 0;
 878         TAILQ_INIT(&run);
 879         prun = &run;
 880         list->tbdio = 1;
 881         while (donebytes < numbytes) {
 882                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
 883
 884                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 885                 TAILQ_INIT(&tior->run);
 886                 tior->list = list;
 887                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
 888                 tior->io = tpcl_alloc_io();
 889                 if (tior->io == NULL) {
 890                         list->error = 1;
 891                         goto complete;
 892                 }
 893                 ctl_scsi_read_write(tior->io,
 894                                     /*data_ptr*/ &list->buf[donebytes],
 895                                     /*data_len*/ roundbytes,
 896                                     /*read_op*/ 1,
 897                                     /*byte2*/ 0,
 898                                     /*minimum_cdb_size*/ 0,
 899                                     /*lba*/ srclba + donebytes / srcblock,
 900                                     /*num_blocks*/ roundbytes / srcblock,
 901                                     /*tag_type*/ CTL_TAG_SIMPLE,
 902                                     /*control*/ 0);
 903                 tior->io->io_hdr.retries = 3;
 904                 tior->lun = sl;
 905                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 906
 907                 tiow = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 908                 TAILQ_INIT(&tiow->run);
 909                 tiow->list = list;
 910                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
 911                 tiow->io = tpcl_alloc_io();
 912                 if (tiow->io == NULL) {
 913                         list->error = 1;
 914                         goto complete;
 915                 }
 916                 ctl_scsi_read_write(tiow->io,
 917                                     /*data_ptr*/ &list->buf[donebytes],
 918                                     /*data_len*/ roundbytes,
 919                                     /*read_op*/ 0,
 920                                     /*byte2*/ 0,
 921                                     /*minimum_cdb_size*/ 0,
 922                                     /*lba*/ dstlba + donebytes / dstblock,
 923                                     /*num_blocks*/ roundbytes / dstblock,
 924                                     /*tag_type*/ CTL_TAG_SIMPLE,
 925                                     /*control*/ 0);
 926                 tiow->io->io_hdr.retries = 3;
 927                 tiow->lun = dl;
 928                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 929
 930                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
 931                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
 932                 prun = &tior->run;
 933                 donebytes += roundbytes;
 934         }
 935
 936         while ((tior = TAILQ_FIRST(&run)) != NULL) {
 937                 TAILQ_REMOVE(&run, tior, rlinks);
 938                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
 939                         panic("tpcl_queue() error");
 940         }
 941
 942         list->stage++;
 943         return (CTL_RETVAL_QUEUED);
 944 }
 945
 946 static int
 947 tpc_process_verify(struct tpc_list *list)
 948 {
 949         struct scsi_ec_segment_verify *seg;
 950         struct tpc_io *tio;
 951         uint64_t sl;
 952
 953         if (list->stage == 1) {
 954 complete:
 955                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
 956                         TAILQ_REMOVE(&list->allio, tio, links);
 957                         ctl_free_io(tio->io);
 958                         free(tio, M_CTL);
 959                 }
 960                 if (list->abort) {
 961                         ctl_set_task_aborted(list->ctsio);
 962                         return (CTL_RETVAL_ERROR);
 963                 } else if (list->error) {
 964                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 965                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 966                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
 967                         return (CTL_RETVAL_ERROR);
 968                 } else
 969                         return (CTL_RETVAL_COMPLETE);
 970         }
 971
 972         TAILQ_INIT(&list->allio);
 973         seg = (struct scsi_ec_segment_verify *)list->seg[list->curseg];
 974         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), NULL);
 975         if (sl >= CTL_MAX_LUNS) {
 976                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 977                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 978                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
 979                 return (CTL_RETVAL_ERROR);
 980         }
 981
 982 //      printf("Verify %ju\n", sl);
 983
 984         if ((seg->tur & 0x01) == 0)
 985                 return (CTL_RETVAL_COMPLETE);
 986
 987         list->tbdio = 1;
 988         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
 989         TAILQ_INIT(&tio->run);
 990         tio->list = list;
 991         TAILQ_INSERT_TAIL(&list->allio, tio, links);
 992         tio->io = tpcl_alloc_io();
 993         if (tio->io == NULL) {
 994                 list->error = 1;
 995                 goto complete;
 996         }
 997         ctl_scsi_tur(tio->io, /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
 998         tio->io->io_hdr.retries = 3;
 999         tio->lun = sl;
1000         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1001         list->stage++;
1002         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1003                 panic("tpcl_queue() error");
1004         return (CTL_RETVAL_QUEUED);
1005 }
1006
1007 static int
1008 tpc_process_register_key(struct tpc_list *list)
1009 {
1010         struct scsi_ec_segment_register_key *seg;
1011         struct tpc_io *tio;
1012         uint64_t dl;
1013         int datalen;
1014
1015         if (list->stage == 1) {
1016 complete:
1017                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1018                         TAILQ_REMOVE(&list->allio, tio, links);
1019                         ctl_free_io(tio->io);
1020                         free(tio, M_CTL);
1021                 }
1022                 free(list->buf, M_CTL);
1023                 if (list->abort) {
1024                         ctl_set_task_aborted(list->ctsio);
1025                         return (CTL_RETVAL_ERROR);
1026                 } else if (list->error) {
1027                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1028                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1029                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1030                         return (CTL_RETVAL_ERROR);
1031                 } else
1032                         return (CTL_RETVAL_COMPLETE);
1033         }
1034
1035         TAILQ_INIT(&list->allio);
1036         seg = (struct scsi_ec_segment_register_key *)list->seg[list->curseg];
1037         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), NULL);
1038         if (dl >= CTL_MAX_LUNS) {
1039                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1040                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1041                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
1042                 return (CTL_RETVAL_ERROR);
1043         }
1044
1045 //      printf("Register Key %ju\n", dl);
1046
1047         list->tbdio = 1;
1048         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1049         TAILQ_INIT(&tio->run);
1050         tio->list = list;
1051         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1052         tio->io = tpcl_alloc_io();
1053         if (tio->io == NULL) {
1054                 list->error = 1;
1055                 goto complete;
1056         }
1057         datalen = sizeof(struct scsi_per_res_out_parms);
1058         list->buf = malloc(datalen, M_CTL, M_WAITOK);
1059         ctl_scsi_persistent_res_out(tio->io,
1060             list->buf, datalen, SPRO_REGISTER, -1,
1061             scsi_8btou64(seg->res_key), scsi_8btou64(seg->sa_res_key),
1062             /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1063         tio->io->io_hdr.retries = 3;
1064         tio->lun = dl;
1065         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1066         list->stage++;
1067         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1068                 panic("tpcl_queue() error");
1069         return (CTL_RETVAL_QUEUED);
1070 }
1071
1072 static off_t
1073 tpc_ranges_length(struct scsi_range_desc *range, int nrange)
1074 {
1075         off_t length = 0;
1076         int r;
1077
1078         for (r = 0; r < nrange; r++)
1079                 length += scsi_4btoul(range[r].length);
1080         return (length);
1081 }
1082
1083 static int
1084 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1085     int *srange, off_t *soffset)
1086 {
1087         off_t off;
1088         int r;
1089
1090         r = 0;
1091         off = 0;
1092         while (r < nrange) {
1093                 if (skip - off < scsi_4btoul(range[r].length)) {
1094                         *srange = r;
1095                         *soffset = skip - off;
1096                         return (0);
1097                 }
1098                 off += scsi_4btoul(range[r].length);
1099                 r++;
1100         }
1101         return (-1);
1102 }
1103
1104 static int
1105 tpc_process_wut(struct tpc_list *list)
1106 {
1107         struct tpc_io *tio, *tior, *tiow;
1108         struct runl run, *prun;
1109         int drange, srange;
1110         off_t doffset, soffset;
1111         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1112         uint32_t srcblock, dstblock;
1113
1114         if (list->stage > 0) {
1115 complete:
1116                 /* Cleanup after previous rounds. */
1117                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1118                         TAILQ_REMOVE(&list->allio, tio, links);
1119                         ctl_free_io(tio->io);
1120                         free(tio, M_CTL);
1121                 }
1122                 free(list->buf, M_CTL);
1123                 if (list->abort) {
1124                         ctl_set_task_aborted(list->ctsio);
1125                         return (CTL_RETVAL_ERROR);
1126                 } else if (list->error) {
1127                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1128                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1129                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1130                         return (CTL_RETVAL_ERROR);
1131                 }
1132                 list->cursectors += list->segsectors;
1133                 list->curbytes += list->segbytes;
1134         }
1135
1136         /* Check where we are on destination ranges list. */
1137         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1138             &drange, &doffset) != 0)
1139                 return (CTL_RETVAL_COMPLETE);
1140         dstblock = list->lun->be_lun->blocksize;
1141
1142         /* Check where we are on source ranges list. */
1143         srcblock = list->token->blocksize;
1144         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1145             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1146             &srange, &soffset) != 0) {
1147                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1148                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1149                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1150                 return (CTL_RETVAL_ERROR);
1151         }
1152
1153         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1154         numbytes = srcblock * omin(TPC_MAX_IOCHUNK_SIZE / srcblock,
1155             (scsi_4btoul(list->token->range[srange].length) - soffset));
1156         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1157         numbytes = omin(numbytes,
1158             dstblock * omin(TPC_MAX_IOCHUNK_SIZE / dstblock,
1159             (scsi_4btoul(list->range[drange].length) - doffset)));
1160
1161         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1162                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1163                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1164                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1165                 return (CTL_RETVAL_ERROR);
1166         }
1167
1168         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1169             (list->token == NULL ? M_ZERO : 0));
1170         list->segbytes = numbytes;
1171         list->segsectors = numbytes / dstblock;
1172 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1173 //    srclba, dstlba);
1174         donebytes = 0;
1175         TAILQ_INIT(&run);
1176         prun = &run;
1177         list->tbdio = 1;
1178         TAILQ_INIT(&list->allio);
1179         while (donebytes < numbytes) {
1180                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
1181
1182                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1183                 TAILQ_INIT(&tior->run);
1184                 tior->list = list;
1185                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1186                 tior->io = tpcl_alloc_io();
1187                 if (tior->io == NULL) {
1188                         list->error = 1;
1189                         goto complete;
1190                 }
1191                 ctl_scsi_read_write(tior->io,
1192                                     /*data_ptr*/ &list->buf[donebytes],
1193                                     /*data_len*/ roundbytes,
1194                                     /*read_op*/ 1,
1195                                     /*byte2*/ 0,
1196                                     /*minimum_cdb_size*/ 0,
1197                                     /*lba*/ srclba + donebytes / srcblock,
1198                                     /*num_blocks*/ roundbytes / srcblock,
1199                                     /*tag_type*/ CTL_TAG_SIMPLE,
1200                                     /*control*/ 0);
1201                 tior->io->io_hdr.retries = 3;
1202                 tior->lun = list->token->lun;
1203                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1204
1205                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1206                 TAILQ_INIT(&tiow->run);
1207                 tiow->list = list;
1208                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1209                 tiow->io = tpcl_alloc_io();
1210                 if (tiow->io == NULL) {
1211                         list->error = 1;
1212                         goto complete;
1213                 }
1214                 ctl_scsi_read_write(tiow->io,
1215                                     /*data_ptr*/ &list->buf[donebytes],
1216                                     /*data_len*/ roundbytes,
1217                                     /*read_op*/ 0,
1218                                     /*byte2*/ 0,
1219                                     /*minimum_cdb_size*/ 0,
1220                                     /*lba*/ dstlba + donebytes / dstblock,
1221                                     /*num_blocks*/ roundbytes / dstblock,
1222                                     /*tag_type*/ CTL_TAG_SIMPLE,
1223                                     /*control*/ 0);
1224                 tiow->io->io_hdr.retries = 3;
1225                 tiow->lun = list->lun->lun;
1226                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1227
1228                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1229                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
1230                 prun = &tior->run;
1231                 donebytes += roundbytes;
1232         }
1233
1234         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1235                 TAILQ_REMOVE(&run, tior, rlinks);
1236                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1237                         panic("tpcl_queue() error");
1238         }
1239
1240         list->stage++;
1241         return (CTL_RETVAL_QUEUED);
1242 }
1243
1244 static int
1245 tpc_process_zero_wut(struct tpc_list *list)
1246 {
1247         struct tpc_io *tio, *tiow;
1248         struct runl run, *prun;
1249         int r;
1250         uint32_t dstblock, len;
1251
1252         if (list->stage > 0) {
1253 complete:
1254                 /* Cleanup after previous rounds. */
1255                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1256                         TAILQ_REMOVE(&list->allio, tio, links);
1257                         ctl_free_io(tio->io);
1258                         free(tio, M_CTL);
1259                 }
1260                 free(list->buf, M_CTL);
1261                 if (list->abort) {
1262                         ctl_set_task_aborted(list->ctsio);
1263                         return (CTL_RETVAL_ERROR);
1264                 } else if (list->error) {
1265                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1266                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1267                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1268                         return (CTL_RETVAL_ERROR);
1269                 }
1270                 list->cursectors += list->segsectors;
1271                 list->curbytes += list->segbytes;
1272                 return (CTL_RETVAL_COMPLETE);
1273         }
1274
1275         dstblock = list->lun->be_lun->blocksize;
1276         list->buf = malloc(dstblock, M_CTL, M_WAITOK | M_ZERO);
1277         TAILQ_INIT(&run);
1278         prun = &run;
1279         list->tbdio = 1;
1280         TAILQ_INIT(&list->allio);
1281         list->segsectors = 0;
1282         for (r = 0; r < list->nrange; r++) {
1283                 len = scsi_4btoul(list->range[r].length);
1284                 if (len == 0)
1285                         continue;
1286
1287                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1288                 TAILQ_INIT(&tiow->run);
1289                 tiow->list = list;
1290                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1291                 tiow->io = tpcl_alloc_io();
1292                 if (tiow->io == NULL) {
1293                         list->error = 1;
1294                         goto complete;
1295                 }
1296                 ctl_scsi_write_same(tiow->io,
1297                                     /*data_ptr*/ list->buf,
1298                                     /*data_len*/ dstblock,
1299                                     /*byte2*/ 0,
1300                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1301                                     /*num_blocks*/ len,
1302                                     /*tag_type*/ CTL_TAG_SIMPLE,
1303                                     /*control*/ 0);
1304                 tiow->io->io_hdr.retries = 3;
1305                 tiow->lun = list->lun->lun;
1306                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1307
1308                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1309                 prun = &tiow->run;
1310                 list->segsectors += len;
1311         }
1312         list->segbytes = list->segsectors * dstblock;
1313
1314         if (TAILQ_EMPTY(&run))
1315                 goto complete;
1316
1317         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1318                 TAILQ_REMOVE(&run, tiow, rlinks);
1319                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1320                         panic("tpcl_queue() error");
1321         }
1322
1323         list->stage++;
1324         return (CTL_RETVAL_QUEUED);
1325 }
1326
1327 static void
1328 tpc_process(struct tpc_list *list)
1329 {
1330         struct ctl_lun *lun = list->lun;
1331         struct scsi_ec_segment *seg;
1332         struct ctl_scsiio *ctsio = list->ctsio;
1333         int retval = CTL_RETVAL_COMPLETE;
1334
1335         if (list->service_action == EC_WUT) {
1336                 if (list->token != NULL)
1337                         retval = tpc_process_wut(list);
1338                 else
1339                         retval = tpc_process_zero_wut(list);
1340                 if (retval == CTL_RETVAL_QUEUED)
1341                         return;
1342                 if (retval == CTL_RETVAL_ERROR) {
1343                         list->error = 1;
1344                         goto done;
1345                 }
1346         } else {
1347 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1348                 while (list->curseg < list->nseg) {
1349                         seg = list->seg[list->curseg];
1350                         switch (seg->type_code) {
1351                         case EC_SEG_B2B:
1352                                 retval = tpc_process_b2b(list);
1353                                 break;
1354                         case EC_SEG_VERIFY:
1355                                 retval = tpc_process_verify(list);
1356                                 break;
1357                         case EC_SEG_REGISTER_KEY:
1358                                 retval = tpc_process_register_key(list);
1359                                 break;
1360                         default:
1361                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1362                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1363                                     /*asc*/ 0x26, /*ascq*/ 0x09, SSD_ELEM_NONE);
1364                                 goto done;
1365                         }
1366                         if (retval == CTL_RETVAL_QUEUED)
1367                                 return;
1368                         if (retval == CTL_RETVAL_ERROR) {
1369                                 list->error = 1;
1370                                 goto done;
1371                         }
1372                         list->curseg++;
1373                         list->stage = 0;
1374                 }
1375         }
1376
1377         ctl_set_success(ctsio);
1378
1379 done:
1380 //printf("ZZZ done\n");
1381         free(list->params, M_CTL);
1382         list->params = NULL;
1383         if (list->token) {
1384                 mtx_lock(&control_softc->ctl_lock);
1385                 if (--list->token->active == 0)
1386                         list->token->last_active = time_uptime;
1387                 mtx_unlock(&control_softc->ctl_lock);
1388                 list->token = NULL;
1389         }
1390         mtx_lock(&lun->lun_lock);
1391         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1392                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1393                 free(list, M_CTL);
1394         } else {
1395                 list->completed = 1;
1396                 list->last_active = time_uptime;
1397                 list->sense_data = ctsio->sense_data;
1398                 list->sense_len = ctsio->sense_len;
1399                 list->scsi_status = ctsio->scsi_status;
1400         }
1401         mtx_unlock(&lun->lun_lock);
1402
1403         ctl_done((union ctl_io *)ctsio);
1404 }
1405
1406 /*
1407  * For any sort of check condition, busy, etc., we just retry.  We do not
1408  * decrement the retry count for unit attention type errors.  These are
1409  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1410  * we could end up with situations where a command will succeed in some
1411  * situations and fail in others, depending on whether a unit attention is
1412  * pending.  Also, some of our error recovery actions, most notably the
1413  * LUN reset action, will cause a unit attention.
1414  *
1415  * We can add more detail here later if necessary.
1416  */
1417 static tpc_error_action
1418 tpc_checkcond_parse(union ctl_io *io)
1419 {
1420         tpc_error_action error_action;
1421         int error_code, sense_key, asc, ascq;
1422
1423         /*
1424          * Default to retrying the command.
1425          */
1426         error_action = TPC_ERR_RETRY;
1427
1428         scsi_extract_sense_len(&io->scsiio.sense_data,
1429                                io->scsiio.sense_len,
1430                                &error_code,
1431                                &sense_key,
1432                                &asc,
1433                                &ascq,
1434                                /*show_errors*/ 1);
1435
1436         switch (error_code) {
1437         case SSD_DEFERRED_ERROR:
1438         case SSD_DESC_DEFERRED_ERROR:
1439                 error_action |= TPC_ERR_NO_DECREMENT;
1440                 break;
1441         case SSD_CURRENT_ERROR:
1442         case SSD_DESC_CURRENT_ERROR:
1443         default:
1444                 switch (sense_key) {
1445                 case SSD_KEY_UNIT_ATTENTION:
1446                         error_action |= TPC_ERR_NO_DECREMENT;
1447                         break;
1448                 case SSD_KEY_HARDWARE_ERROR:
1449                         /*
1450                          * This is our generic "something bad happened"
1451                          * error code.  It often isn't recoverable.
1452                          */
1453                         if ((asc == 0x44) && (ascq == 0x00))
1454                                 error_action = TPC_ERR_FAIL;
1455                         break;
1456                 case SSD_KEY_NOT_READY:
1457                         /*
1458                          * If the LUN is powered down, there likely isn't
1459                          * much point in retrying right now.
1460                          */
1461                         if ((asc == 0x04) && (ascq == 0x02))
1462                                 error_action = TPC_ERR_FAIL;
1463                         /*
1464                          * If the LUN is offline, there probably isn't much
1465                          * point in retrying, either.
1466                          */
1467                         if ((asc == 0x04) && (ascq == 0x03))
1468                                 error_action = TPC_ERR_FAIL;
1469                         break;
1470                 }
1471         }
1472         return (error_action);
1473 }
1474
1475 static tpc_error_action
1476 tpc_error_parse(union ctl_io *io)
1477 {
1478         tpc_error_action error_action = TPC_ERR_RETRY;
1479
1480         switch (io->io_hdr.io_type) {
1481         case CTL_IO_SCSI:
1482                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1483                 case CTL_SCSI_ERROR:
1484                         switch (io->scsiio.scsi_status) {
1485                         case SCSI_STATUS_CHECK_COND:
1486                                 error_action = tpc_checkcond_parse(io);
1487                                 break;
1488                         default:
1489                                 break;
1490                         }
1491                         break;
1492                 default:
1493                         break;
1494                 }
1495                 break;
1496         case CTL_IO_TASK:
1497                 break;
1498         default:
1499                 panic("%s: invalid ctl_io type %d\n", __func__,
1500                       io->io_hdr.io_type);
1501                 break;
1502         }
1503         return (error_action);
1504 }
1505
1506 void
1507 tpc_done(union ctl_io *io)
1508 {
1509         struct tpc_io *tio, *tior;
1510
1511         /*
1512          * Very minimal retry logic.  We basically retry if we got an error
1513          * back, and the retry count is greater than 0.  If we ever want
1514          * more sophisticated initiator type behavior, the CAM error
1515          * recovery code in ../common might be helpful.
1516          */
1517 //      if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1518 //              ctl_io_error_print(io, NULL);
1519         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1520         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1521          && (io->io_hdr.retries > 0)) {
1522                 ctl_io_status old_status;
1523                 tpc_error_action error_action;
1524
1525                 error_action = tpc_error_parse(io);
1526                 switch (error_action & TPC_ERR_MASK) {
1527                 case TPC_ERR_FAIL:
1528                         break;
1529                 case TPC_ERR_RETRY:
1530                 default:
1531                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1532                                 io->io_hdr.retries--;
1533                         old_status = io->io_hdr.status;
1534                         io->io_hdr.status = CTL_STATUS_NONE;
1535                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1536                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1537                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1538                                 printf("%s: error returned from ctl_queue()!\n",
1539                                        __func__);
1540                                 io->io_hdr.status = old_status;
1541                         } else
1542                                 return;
1543                 }
1544         }
1545
1546         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1547                 tio->list->error = 1;
1548         else
1549                 atomic_add_int(&tio->list->curops, 1);
1550         if (!tio->list->error && !tio->list->abort) {
1551                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1552                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1553                         atomic_add_int(&tio->list->tbdio, 1);
1554                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1555                                 panic("tpcl_queue() error");
1556                 }
1557         }
1558         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1559                 tpc_process(tio->list);
1560 }
1561
1562 int
1563 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1564 {
1565         struct scsi_extended_copy *cdb;
1566         struct scsi_extended_copy_lid1_data *data;
1567         struct ctl_lun *lun;
1568         struct tpc_list *list, *tlist;
1569         uint8_t *ptr;
1570         char *value;
1571         int len, off, lencscd, lenseg, leninl, nseg;
1572
1573         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1574
1575         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1576         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1577         len = scsi_4btoul(cdb->length);
1578
1579         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1580             len > sizeof(struct scsi_extended_copy_lid1_data) +
1581             TPC_MAX_LIST + TPC_MAX_INLINE) {
1582                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1583                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1584                 goto done;
1585         }
1586
1587         /*
1588          * If we've got a kernel request that hasn't been malloced yet,
1589          * malloc it and tell the caller the data buffer is here.
1590          */
1591         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1592                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1593                 ctsio->kern_data_len = len;
1594                 ctsio->kern_total_len = len;
1595                 ctsio->kern_data_resid = 0;
1596                 ctsio->kern_rel_offset = 0;
1597                 ctsio->kern_sg_entries = 0;
1598                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1599                 ctsio->be_move_done = ctl_config_move_done;
1600                 ctl_datamove((union ctl_io *)ctsio);
1601
1602                 return (CTL_RETVAL_COMPLETE);
1603         }
1604
1605         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1606         lencscd = scsi_2btoul(data->cscd_list_length);
1607         lenseg = scsi_4btoul(data->segment_list_length);
1608         leninl = scsi_4btoul(data->inline_data_length);
1609         if (len < sizeof(struct scsi_extended_copy_lid1_data) +
1610             lencscd + lenseg + leninl ||
1611             leninl > TPC_MAX_INLINE) {
1612                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1613                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1614                 goto done;
1615         }
1616         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1617                 ctl_set_sense(ctsio, /*current_error*/ 1,
1618                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1619                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1620                 goto done;
1621         }
1622         if (lencscd + lenseg > TPC_MAX_LIST) {
1623                 ctl_set_param_len_error(ctsio);
1624                 goto done;
1625         }
1626
1627         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1628         list->service_action = cdb->service_action;
1629         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1630         if (value != NULL && strcmp(value, "on") == 0)
1631                 list->init_port = -1;
1632         else
1633                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1634         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1635         list->list_id = data->list_identifier;
1636         list->flags = data->flags;
1637         list->params = ctsio->kern_data_ptr;
1638         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1639         ptr = &data->data[lencscd];
1640         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1641                 if (nseg >= TPC_MAX_SEGS) {
1642                         free(list, M_CTL);
1643                         ctl_set_sense(ctsio, /*current_error*/ 1,
1644                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1645                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1646                         goto done;
1647                 }
1648                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1649                 off += sizeof(struct scsi_ec_segment) +
1650                     scsi_2btoul(list->seg[nseg]->descr_length);
1651         }
1652         list->inl = &data->data[lencscd + lenseg];
1653         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1654         list->nseg = nseg;
1655         list->leninl = leninl;
1656         list->ctsio = ctsio;
1657         list->lun = lun;
1658         mtx_lock(&lun->lun_lock);
1659         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1660                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1661                 if (tlist != NULL && !tlist->completed) {
1662                         mtx_unlock(&lun->lun_lock);
1663                         free(list, M_CTL);
1664                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1665                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1666                             /*bit*/ 0);
1667                         goto done;
1668                 }
1669                 if (tlist != NULL) {
1670                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1671                         free(tlist, M_CTL);
1672                 }
1673         }
1674         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1675         mtx_unlock(&lun->lun_lock);
1676
1677         tpc_process(list);
1678         return (CTL_RETVAL_COMPLETE);
1679
1680 done:
1681         ctl_done((union ctl_io *)ctsio);
1682         return (CTL_RETVAL_COMPLETE);
1683 }
1684
1685 int
1686 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1687 {
1688         struct scsi_extended_copy *cdb;
1689         struct scsi_extended_copy_lid4_data *data;
1690         struct ctl_lun *lun;
1691         struct tpc_list *list, *tlist;
1692         uint8_t *ptr;
1693         char *value;
1694         int len, off, lencscd, lenseg, leninl, nseg;
1695
1696         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1697
1698         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1699         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1700         len = scsi_4btoul(cdb->length);
1701
1702         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1703             len > sizeof(struct scsi_extended_copy_lid4_data) +
1704             TPC_MAX_LIST + TPC_MAX_INLINE) {
1705                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1706                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1707                 goto done;
1708         }
1709
1710         /*
1711          * If we've got a kernel request that hasn't been malloced yet,
1712          * malloc it and tell the caller the data buffer is here.
1713          */
1714         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1715                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1716                 ctsio->kern_data_len = len;
1717                 ctsio->kern_total_len = len;
1718                 ctsio->kern_data_resid = 0;
1719                 ctsio->kern_rel_offset = 0;
1720                 ctsio->kern_sg_entries = 0;
1721                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1722                 ctsio->be_move_done = ctl_config_move_done;
1723                 ctl_datamove((union ctl_io *)ctsio);
1724
1725                 return (CTL_RETVAL_COMPLETE);
1726         }
1727
1728         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1729         lencscd = scsi_2btoul(data->cscd_list_length);
1730         lenseg = scsi_2btoul(data->segment_list_length);
1731         leninl = scsi_2btoul(data->inline_data_length);
1732         if (len < sizeof(struct scsi_extended_copy_lid4_data) +
1733             lencscd + lenseg + leninl ||
1734             leninl > TPC_MAX_INLINE) {
1735                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1736                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1737                 goto done;
1738         }
1739         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1740                 ctl_set_sense(ctsio, /*current_error*/ 1,
1741                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1742                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1743                 goto done;
1744         }
1745         if (lencscd + lenseg > TPC_MAX_LIST) {
1746                 ctl_set_param_len_error(ctsio);
1747                 goto done;
1748         }
1749
1750         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1751         list->service_action = cdb->service_action;
1752         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1753         if (value != NULL && strcmp(value, "on") == 0)
1754                 list->init_port = -1;
1755         else
1756                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1757         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1758         list->list_id = scsi_4btoul(data->list_identifier);
1759         list->flags = data->flags;
1760         list->params = ctsio->kern_data_ptr;
1761         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1762         ptr = &data->data[lencscd];
1763         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1764                 if (nseg >= TPC_MAX_SEGS) {
1765                         free(list, M_CTL);
1766                         ctl_set_sense(ctsio, /*current_error*/ 1,
1767                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1768                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1769                         goto done;
1770                 }
1771                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1772                 off += sizeof(struct scsi_ec_segment) +
1773                     scsi_2btoul(list->seg[nseg]->descr_length);
1774         }
1775         list->inl = &data->data[lencscd + lenseg];
1776         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1777         list->nseg = nseg;
1778         list->leninl = leninl;
1779         list->ctsio = ctsio;
1780         list->lun = lun;
1781         mtx_lock(&lun->lun_lock);
1782         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1783                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1784                 if (tlist != NULL && !tlist->completed) {
1785                         mtx_unlock(&lun->lun_lock);
1786                         free(list, M_CTL);
1787                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1788                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1789                             /*bit*/ 0);
1790                         goto done;
1791                 }
1792                 if (tlist != NULL) {
1793                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1794                         free(tlist, M_CTL);
1795                 }
1796         }
1797         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1798         mtx_unlock(&lun->lun_lock);
1799
1800         tpc_process(list);
1801         return (CTL_RETVAL_COMPLETE);
1802
1803 done:
1804         ctl_done((union ctl_io *)ctsio);
1805         return (CTL_RETVAL_COMPLETE);
1806 }
1807
1808 static void
1809 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1810     struct scsi_token *token)
1811 {
1812         static int id = 0;
1813         struct scsi_vpd_id_descriptor *idd = NULL;
1814         struct scsi_ec_cscd_id *cscd;
1815         int targid_len;
1816
1817         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1818         scsi_ulto2b(0x01f8, token->length);
1819         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1820         if (lun->lun_devid)
1821                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1822                     lun->lun_devid->data, lun->lun_devid->len,
1823                     scsi_devid_is_lun_naa);
1824         if (idd == NULL && lun->lun_devid)
1825                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1826                     lun->lun_devid->data, lun->lun_devid->len,
1827                     scsi_devid_is_lun_eui64);
1828         if (idd != NULL) {
1829                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1830                 cscd->type_code = EC_CSCD_ID;
1831                 cscd->luidt_pdt = T_DIRECT;
1832                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1833         }
1834         scsi_u64to8b(0, &token->body[40]);
1835         scsi_u64to8b(len, &token->body[48]);
1836         if (port->target_devid) {
1837                 targid_len = port->target_devid->len;
1838                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1839         } else
1840                 targid_len = 32;
1841         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1842 };
1843
1844 int
1845 ctl_populate_token(struct ctl_scsiio *ctsio)
1846 {
1847         struct scsi_populate_token *cdb;
1848         struct scsi_populate_token_data *data;
1849         struct ctl_lun *lun;
1850         struct ctl_port *port;
1851         struct tpc_list *list, *tlist;
1852         struct tpc_token *token;
1853         int len, lendesc;
1854
1855         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1856
1857         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1858         port = control_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)];
1859         cdb = (struct scsi_populate_token *)ctsio->cdb;
1860         len = scsi_4btoul(cdb->length);
1861
1862         if (len < sizeof(struct scsi_populate_token_data) ||
1863             len > sizeof(struct scsi_populate_token_data) +
1864              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1865                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1866                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1867                 goto done;
1868         }
1869
1870         /*
1871          * If we've got a kernel request that hasn't been malloced yet,
1872          * malloc it and tell the caller the data buffer is here.
1873          */
1874         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1875                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1876                 ctsio->kern_data_len = len;
1877                 ctsio->kern_total_len = len;
1878                 ctsio->kern_data_resid = 0;
1879                 ctsio->kern_rel_offset = 0;
1880                 ctsio->kern_sg_entries = 0;
1881                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1882                 ctsio->be_move_done = ctl_config_move_done;
1883                 ctl_datamove((union ctl_io *)ctsio);
1884
1885                 return (CTL_RETVAL_COMPLETE);
1886         }
1887
1888         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1889         lendesc = scsi_2btoul(data->range_descriptor_length);
1890         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
1891                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1892                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1893                 goto done;
1894         }
1895 /*
1896         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
1897             scsi_4btoul(cdb->list_identifier),
1898             data->flags, scsi_4btoul(data->inactivity_timeout),
1899             scsi_4btoul(data->rod_type),
1900             scsi_2btoul(data->range_descriptor_length));
1901 */
1902         if ((data->flags & EC_PT_RTV) &&
1903             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
1904                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1905                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
1906                 goto done;
1907         }
1908
1909         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1910         list->service_action = cdb->service_action;
1911         list->init_port = ctsio->io_hdr.nexus.targ_port;
1912         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1913         list->list_id = scsi_4btoul(cdb->list_identifier);
1914         list->flags = data->flags;
1915         list->ctsio = ctsio;
1916         list->lun = lun;
1917         mtx_lock(&lun->lun_lock);
1918         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1919         if (tlist != NULL && !tlist->completed) {
1920                 mtx_unlock(&lun->lun_lock);
1921                 free(list, M_CTL);
1922                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1923                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1924                     /*bit*/ 0);
1925                 goto done;
1926         }
1927         if (tlist != NULL) {
1928                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1929                 free(tlist, M_CTL);
1930         }
1931         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1932         mtx_unlock(&lun->lun_lock);
1933
1934         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
1935         token->lun = lun->lun;
1936         token->blocksize = lun->be_lun->blocksize;
1937         token->params = ctsio->kern_data_ptr;
1938         token->range = &data->desc[0];
1939         token->nrange = scsi_2btoul(data->range_descriptor_length) /
1940             sizeof(struct scsi_range_desc);
1941         tpc_create_token(lun, port, list->curbytes,
1942             (struct scsi_token *)token->token);
1943         token->active = 0;
1944         token->last_active = time_uptime;
1945         token->timeout = scsi_4btoul(data->inactivity_timeout);
1946         if (token->timeout == 0)
1947                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
1948         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
1949                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
1950         else if (token->timeout > TPC_MAX_TOKEN_TIMEOUT) {
1951                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1952                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
1953                     /*bit*/ 0);
1954         }
1955         memcpy(list->res_token, token->token, sizeof(list->res_token));
1956         list->res_token_valid = 1;
1957         list->cursectors = tpc_ranges_length(token->range, token->nrange);
1958         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
1959         list->curseg = 0;
1960         list->completed = 1;
1961         list->last_active = time_uptime;
1962         mtx_lock(&control_softc->ctl_lock);
1963         TAILQ_INSERT_TAIL(&control_softc->tpc_tokens, token, links);
1964         mtx_unlock(&control_softc->ctl_lock);
1965         ctl_set_success(ctsio);
1966         ctl_done((union ctl_io *)ctsio);
1967         return (CTL_RETVAL_COMPLETE);
1968
1969 done:
1970         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED)
1971                 free(ctsio->kern_data_ptr, M_CTL);
1972         ctl_done((union ctl_io *)ctsio);
1973         return (CTL_RETVAL_COMPLETE);
1974 }
1975
1976 int
1977 ctl_write_using_token(struct ctl_scsiio *ctsio)
1978 {
1979         struct scsi_write_using_token *cdb;
1980         struct scsi_write_using_token_data *data;
1981         struct ctl_lun *lun;
1982         struct tpc_list *list, *tlist;
1983         struct tpc_token *token;
1984         int len, lendesc;
1985
1986         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
1987
1988         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1989         cdb = (struct scsi_write_using_token *)ctsio->cdb;
1990         len = scsi_4btoul(cdb->length);
1991
1992         if (len < sizeof(struct scsi_populate_token_data) ||
1993             len > sizeof(struct scsi_populate_token_data) +
1994              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1995                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1996                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1997                 goto done;
1998         }
1999
2000         /*
2001          * If we've got a kernel request that hasn't been malloced yet,
2002          * malloc it and tell the caller the data buffer is here.
2003          */
2004         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
2005                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
2006                 ctsio->kern_data_len = len;
2007                 ctsio->kern_total_len = len;
2008                 ctsio->kern_data_resid = 0;
2009                 ctsio->kern_rel_offset = 0;
2010                 ctsio->kern_sg_entries = 0;
2011                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2012                 ctsio->be_move_done = ctl_config_move_done;
2013                 ctl_datamove((union ctl_io *)ctsio);
2014
2015                 return (CTL_RETVAL_COMPLETE);
2016         }
2017
2018         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
2019         lendesc = scsi_2btoul(data->range_descriptor_length);
2020         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
2021                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2022                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
2023                 goto done;
2024         }
2025 /*
2026         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2027             scsi_4btoul(cdb->list_identifier),
2028             data->flags, scsi_8btou64(data->offset_into_rod),
2029             scsi_2btoul(data->range_descriptor_length));
2030 */
2031         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2032         list->service_action = cdb->service_action;
2033         list->init_port = ctsio->io_hdr.nexus.targ_port;
2034         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
2035         list->list_id = scsi_4btoul(cdb->list_identifier);
2036         list->flags = data->flags;
2037         list->params = ctsio->kern_data_ptr;
2038         list->range = &data->desc[0];
2039         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2040             sizeof(struct scsi_range_desc);
2041         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2042         list->ctsio = ctsio;
2043         list->lun = lun;
2044         mtx_lock(&lun->lun_lock);
2045         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2046         if (tlist != NULL && !tlist->completed) {
2047                 mtx_unlock(&lun->lun_lock);
2048                 free(list, M_CTL);
2049                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2050                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2051                     /*bit*/ 0);
2052                 goto done;
2053         }
2054         if (tlist != NULL) {
2055                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2056                 free(tlist, M_CTL);
2057         }
2058         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2059         mtx_unlock(&lun->lun_lock);
2060
2061         /* Block device zero ROD token -> no token. */
2062         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2063                 tpc_process(list);
2064                 return (CTL_RETVAL_COMPLETE);
2065         }
2066
2067         mtx_lock(&control_softc->ctl_lock);
2068         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2069                 if (memcmp(token->token, data->rod_token,
2070                     sizeof(data->rod_token)) == 0)
2071                         break;
2072         }
2073         if (token != NULL) {
2074                 token->active++;
2075                 list->token = token;
2076                 if (data->flags & EC_WUT_DEL_TKN)
2077                         token->timeout = 0;
2078         }
2079         mtx_unlock(&control_softc->ctl_lock);
2080         if (token == NULL) {
2081                 mtx_lock(&lun->lun_lock);
2082                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2083                 mtx_unlock(&lun->lun_lock);
2084                 free(list, M_CTL);
2085                 ctl_set_sense(ctsio, /*current_error*/ 1,
2086                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2087                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2088                 goto done;
2089         }
2090
2091         tpc_process(list);
2092         return (CTL_RETVAL_COMPLETE);
2093
2094 done:
2095         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED)
2096                 free(ctsio->kern_data_ptr, M_CTL);
2097         ctl_done((union ctl_io *)ctsio);
2098         return (CTL_RETVAL_COMPLETE);
2099 }
2100
2101 int
2102 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2103 {
2104         struct ctl_lun *lun;
2105         struct scsi_receive_rod_token_information *cdb;
2106         struct scsi_receive_copy_status_lid4_data *data;
2107         struct tpc_list *list;
2108         struct tpc_list list_copy;
2109         uint8_t *ptr;
2110         int retval;
2111         int alloc_len, total_len, token_len;
2112         uint32_t list_id;
2113
2114         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2115
2116         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2117         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2118
2119         retval = CTL_RETVAL_COMPLETE;
2120
2121         list_id = scsi_4btoul(cdb->list_identifier);
2122         mtx_lock(&lun->lun_lock);
2123         list = tpc_find_list(lun, list_id,
2124             ctl_get_resindex(&ctsio->io_hdr.nexus));
2125         if (list == NULL) {
2126                 mtx_unlock(&lun->lun_lock);
2127                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2128                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2129                     /*bit*/ 0);
2130                 ctl_done((union ctl_io *)ctsio);
2131                 return (retval);
2132         }
2133         list_copy = *list;
2134         if (list->completed) {
2135                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2136                 free(list, M_CTL);
2137         }
2138         mtx_unlock(&lun->lun_lock);
2139
2140         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2141         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2142         alloc_len = scsi_4btoul(cdb->length);
2143
2144         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2145
2146         ctsio->kern_sg_entries = 0;
2147
2148         if (total_len < alloc_len) {
2149                 ctsio->residual = alloc_len - total_len;
2150                 ctsio->kern_data_len = total_len;
2151                 ctsio->kern_total_len = total_len;
2152         } else {
2153                 ctsio->residual = 0;
2154                 ctsio->kern_data_len = alloc_len;
2155                 ctsio->kern_total_len = alloc_len;
2156         }
2157         ctsio->kern_data_resid = 0;
2158         ctsio->kern_rel_offset = 0;
2159
2160         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2161         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2162             4 + token_len, data->available_data);
2163         data->response_to_service_action = list_copy.service_action;
2164         if (list_copy.completed) {
2165                 if (list_copy.error)
2166                         data->copy_command_status = RCS_CCS_ERROR;
2167                 else if (list_copy.abort)
2168                         data->copy_command_status = RCS_CCS_ABORTED;
2169                 else
2170                         data->copy_command_status = RCS_CCS_COMPLETED;
2171         } else
2172                 data->copy_command_status = RCS_CCS_INPROG_FG;
2173         scsi_ulto2b(list_copy.curops, data->operation_counter);
2174         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2175         data->transfer_count_units = RCS_TC_LBAS;
2176         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2177         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2178         data->length_of_the_sense_data_field = list_copy.sense_len;
2179         data->sense_data_length = list_copy.sense_len;
2180         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2181
2182         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2183         scsi_ulto4b(token_len, &ptr[0]);
2184         if (list_copy.res_token_valid) {
2185                 scsi_ulto2b(0, &ptr[4]);
2186                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2187         }
2188 /*
2189         printf("RRTI(list=%u) valid=%d\n",
2190             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2191 */
2192         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2193         ctsio->be_move_done = ctl_config_move_done;
2194
2195         ctl_datamove((union ctl_io *)ctsio);
2196         return (retval);
2197 }
2198
2199 int
2200 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2201 {
2202         struct ctl_lun *lun;
2203         struct scsi_report_all_rod_tokens *cdb;
2204         struct scsi_report_all_rod_tokens_data *data;
2205         struct tpc_token *token;
2206         int retval;
2207         int alloc_len, total_len, tokens, i;
2208
2209         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2210
2211         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2212         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2213
2214         retval = CTL_RETVAL_COMPLETE;
2215
2216         tokens = 0;
2217         mtx_lock(&control_softc->ctl_lock);
2218         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links)
2219                 tokens++;
2220         mtx_unlock(&control_softc->ctl_lock);
2221         if (tokens > 512)
2222                 tokens = 512;
2223
2224         total_len = sizeof(*data) + tokens * 96;
2225         alloc_len = scsi_4btoul(cdb->length);
2226
2227         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2228
2229         ctsio->kern_sg_entries = 0;
2230
2231         if (total_len < alloc_len) {
2232                 ctsio->residual = alloc_len - total_len;
2233                 ctsio->kern_data_len = total_len;
2234                 ctsio->kern_total_len = total_len;
2235         } else {
2236                 ctsio->residual = 0;
2237                 ctsio->kern_data_len = alloc_len;
2238                 ctsio->kern_total_len = alloc_len;
2239         }
2240         ctsio->kern_data_resid = 0;
2241         ctsio->kern_rel_offset = 0;
2242
2243         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2244         i = 0;
2245         mtx_lock(&control_softc->ctl_lock);
2246         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2247                 if (i >= tokens)
2248                         break;
2249                 memcpy(&data->rod_management_token_list[i * 96],
2250                     token->token, 96);
2251                 i++;
2252         }
2253         mtx_unlock(&control_softc->ctl_lock);
2254         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2255 /*
2256         printf("RART tokens=%d\n", i);
2257 */
2258         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2259         ctsio->be_move_done = ctl_config_move_done;
2260
2261         ctl_datamove((union ctl_io *)ctsio);
2262         return (retval);
2263 }
2264