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_util.h>
  51 #include <cam/ctl/ctl_backend.h>
  52 #include <cam/ctl/ctl_ioctl.h>
  53 #include <cam/ctl/ctl_ha.h>
  54 #include <cam/ctl/ctl_private.h>
  55 #include <cam/ctl/ctl_debug.h>
  56 #include <cam/ctl/ctl_scsi_all.h>
  57 #include <cam/ctl/ctl_tpc.h>
  58 #include <cam/ctl/ctl_error.h>
  59
  60 #define TPC_MAX_CSCDS   64
  61 #define TPC_MAX_SEGS    64
  62 #define TPC_MAX_SEG     0
  63 #define TPC_MAX_LIST    8192
  64 #define TPC_MAX_INLINE  0
  65 #define TPC_MAX_LISTS   255
  66 #define TPC_MAX_IO_SIZE (1024 * 1024)
  67 #define TPC_MAX_IOCHUNK_SIZE    (TPC_MAX_IO_SIZE * 16)
  68 #define TPC_MIN_TOKEN_TIMEOUT   1
  69 #define TPC_DFL_TOKEN_TIMEOUT   60
  70 #define TPC_MAX_TOKEN_TIMEOUT   600
  71
  72 MALLOC_DEFINE(M_CTL_TPC, "ctltpc", "CTL TPC");
  73
  74 typedef enum {
  75         TPC_ERR_RETRY           = 0x000,
  76         TPC_ERR_FAIL            = 0x001,
  77         TPC_ERR_MASK            = 0x0ff,
  78         TPC_ERR_NO_DECREMENT    = 0x100
  79 } tpc_error_action;
  80
  81 struct tpc_list;
  82 TAILQ_HEAD(runl, tpc_io);
  83 struct tpc_io {
  84         union ctl_io            *io;
  85         uint64_t                 lun;
  86         struct tpc_list         *list;
  87         struct runl              run;
  88         TAILQ_ENTRY(tpc_io)      rlinks;
  89         TAILQ_ENTRY(tpc_io)      links;
  90 };
  91
  92 struct tpc_token {
  93         uint8_t                  token[512];
  94         uint64_t                 lun;
  95         uint32_t                 blocksize;
  96         uint8_t                 *params;
  97         struct scsi_range_desc  *range;
  98         int                      nrange;
  99         int                      active;
 100         time_t                   last_active;
 101         uint32_t                 timeout;
 102         TAILQ_ENTRY(tpc_token)   links;
 103 };
 104
 105 struct tpc_list {
 106         uint8_t                  service_action;
 107         int                      init_port;
 108         uint32_t                 init_idx;
 109         uint32_t                 list_id;
 110         uint8_t                  flags;
 111         uint8_t                 *params;
 112         struct scsi_ec_cscd     *cscd;
 113         struct scsi_ec_segment  *seg[TPC_MAX_SEGS];
 114         uint8_t                 *inl;
 115         int                      ncscd;
 116         int                      nseg;
 117         int                      leninl;
 118         struct tpc_token        *token;
 119         struct scsi_range_desc  *range;
 120         int                      nrange;
 121         off_t                    offset_into_rod;
 122
 123         int                      curseg;
 124         off_t                    cursectors;
 125         off_t                    curbytes;
 126         int                      curops;
 127         int                      stage;
 128         uint8_t                 *buf;
 129         off_t                    segsectors;
 130         off_t                    segbytes;
 131         int                      tbdio;
 132         int                      error;
 133         int                      abort;
 134         int                      completed;
 135         time_t                   last_active;
 136         TAILQ_HEAD(, tpc_io)     allio;
 137         struct scsi_sense_data   sense_data;
 138         uint8_t                  sense_len;
 139         uint8_t                  scsi_status;
 140         struct ctl_scsiio       *ctsio;
 141         struct ctl_lun          *lun;
 142         int                      res_token_valid;
 143         uint8_t                  res_token[512];
 144         TAILQ_ENTRY(tpc_list)    links;
 145 };
 146
 147 static void
 148 tpc_timeout(void *arg)
 149 {
 150         struct ctl_softc *softc = arg;
 151         struct ctl_lun *lun;
 152         struct tpc_token *token, *ttoken;
 153         struct tpc_list *list, *tlist;
 154
 155         /* Free completed lists with expired timeout. */
 156         STAILQ_FOREACH(lun, &softc->lun_list, links) {
 157                 mtx_lock(&lun->lun_lock);
 158                 TAILQ_FOREACH_SAFE(list, &lun->tpc_lists, links, tlist) {
 159                         if (!list->completed || time_uptime < list->last_active +
 160                             TPC_DFL_TOKEN_TIMEOUT)
 161                                 continue;
 162                         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 163                         free(list, M_CTL);
 164                 }
 165                 mtx_unlock(&lun->lun_lock);
 166         }
 167
 168         /* Free inactive ROD tokens with expired timeout. */
 169         mtx_lock(&softc->tpc_lock);
 170         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
 171                 if (token->active ||
 172                     time_uptime < token->last_active + token->timeout + 1)
 173                         continue;
 174                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 175                 free(token->params, M_CTL);
 176                 free(token, M_CTL);
 177         }
 178         mtx_unlock(&softc->tpc_lock);
 179         callout_schedule(&softc->tpc_timeout, hz);
 180 }
 181
 182 void
 183 ctl_tpc_init(struct ctl_softc *softc)
 184 {
 185
 186         mtx_init(&softc->tpc_lock, "CTL TPC mutex", NULL, MTX_DEF);
 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->tpc_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->tpc_lock);
 207         mtx_destroy(&softc->tpc_lock);
 208 }
 209
 210 void
 211 ctl_tpc_lun_init(struct ctl_lun *lun)
 212 {
 213
 214         TAILQ_INIT(&lun->tpc_lists);
 215 }
 216
 217 void
 218 ctl_tpc_lun_shutdown(struct ctl_lun *lun)
 219 {
 220         struct ctl_softc *softc = lun->ctl_softc;
 221         struct tpc_list *list;
 222         struct tpc_token *token, *ttoken;
 223
 224         /* Free lists for this LUN. */
 225         while ((list = TAILQ_FIRST(&lun->tpc_lists)) != NULL) {
 226                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 227                 KASSERT(list->completed,
 228                     ("Not completed TPC (%p) on shutdown", list));
 229                 free(list, M_CTL);
 230         }
 231
 232         /* Free ROD tokens for this LUN. */
 233         mtx_lock(&softc->tpc_lock);
 234         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
 235                 if (token->lun != lun->lun || token->active)
 236                         continue;
 237                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 238                 free(token->params, M_CTL);
 239                 free(token, M_CTL);
 240         }
 241         mtx_unlock(&softc->tpc_lock);
 242 }
 243
 244 int
 245 ctl_inquiry_evpd_tpc(struct ctl_scsiio *ctsio, int alloc_len)
 246 {
 247         struct scsi_vpd_tpc *tpc_ptr;
 248         struct scsi_vpd_tpc_descriptor *d_ptr;
 249         struct scsi_vpd_tpc_descriptor_bdrl *bdrl_ptr;
 250         struct scsi_vpd_tpc_descriptor_sc *sc_ptr;
 251         struct scsi_vpd_tpc_descriptor_sc_descr *scd_ptr;
 252         struct scsi_vpd_tpc_descriptor_pd *pd_ptr;
 253         struct scsi_vpd_tpc_descriptor_sd *sd_ptr;
 254         struct scsi_vpd_tpc_descriptor_sdid *sdid_ptr;
 255         struct scsi_vpd_tpc_descriptor_rtf *rtf_ptr;
 256         struct scsi_vpd_tpc_descriptor_rtf_block *rtfb_ptr;
 257         struct scsi_vpd_tpc_descriptor_srt *srt_ptr;
 258         struct scsi_vpd_tpc_descriptor_srtd *srtd_ptr;
 259         struct scsi_vpd_tpc_descriptor_gco *gco_ptr;
 260         struct ctl_lun *lun;
 261         int data_len;
 262
 263         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 264
 265         data_len = sizeof(struct scsi_vpd_tpc) +
 266             sizeof(struct scsi_vpd_tpc_descriptor_bdrl) +
 267             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sc) +
 268              2 * sizeof(struct scsi_vpd_tpc_descriptor_sc_descr) + 11, 4) +
 269             sizeof(struct scsi_vpd_tpc_descriptor_pd) +
 270             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sd) + 4, 4) +
 271             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sdid) + 2, 4) +
 272             sizeof(struct scsi_vpd_tpc_descriptor_rtf) +
 273              sizeof(struct scsi_vpd_tpc_descriptor_rtf_block) +
 274             sizeof(struct scsi_vpd_tpc_descriptor_srt) +
 275              2*sizeof(struct scsi_vpd_tpc_descriptor_srtd) +
 276             sizeof(struct scsi_vpd_tpc_descriptor_gco);
 277
 278         ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
 279         tpc_ptr = (struct scsi_vpd_tpc *)ctsio->kern_data_ptr;
 280         ctsio->kern_sg_entries = 0;
 281
 282         if (data_len < alloc_len) {
 283                 ctsio->residual = alloc_len - data_len;
 284                 ctsio->kern_data_len = data_len;
 285                 ctsio->kern_total_len = data_len;
 286         } else {
 287                 ctsio->residual = 0;
 288                 ctsio->kern_data_len = alloc_len;
 289                 ctsio->kern_total_len = alloc_len;
 290         }
 291         ctsio->kern_data_resid = 0;
 292         ctsio->kern_rel_offset = 0;
 293         ctsio->kern_sg_entries = 0;
 294
 295         /*
 296          * The control device is always connected.  The disk device, on the
 297          * other hand, may not be online all the time.
 298          */
 299         if (lun != NULL)
 300                 tpc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
 301                                      lun->be_lun->lun_type;
 302         else
 303                 tpc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
 304         tpc_ptr->page_code = SVPD_SCSI_TPC;
 305         scsi_ulto2b(data_len - 4, tpc_ptr->page_length);
 306
 307         /* Block Device ROD Limits */
 308         d_ptr = (struct scsi_vpd_tpc_descriptor *)&tpc_ptr->descr[0];
 309         bdrl_ptr = (struct scsi_vpd_tpc_descriptor_bdrl *)d_ptr;
 310         scsi_ulto2b(SVPD_TPC_BDRL, bdrl_ptr->desc_type);
 311         scsi_ulto2b(sizeof(*bdrl_ptr) - 4, bdrl_ptr->desc_length);
 312         scsi_ulto2b(TPC_MAX_SEGS, bdrl_ptr->maximum_ranges);
 313         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 314             bdrl_ptr->maximum_inactivity_timeout);
 315         scsi_ulto4b(TPC_DFL_TOKEN_TIMEOUT,
 316             bdrl_ptr->default_inactivity_timeout);
 317         scsi_u64to8b(0, bdrl_ptr->maximum_token_transfer_size);
 318         scsi_u64to8b(0, bdrl_ptr->optimal_transfer_count);
 319
 320         /* Supported commands */
 321         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 322             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 323         sc_ptr = (struct scsi_vpd_tpc_descriptor_sc *)d_ptr;
 324         scsi_ulto2b(SVPD_TPC_SC, sc_ptr->desc_type);
 325         sc_ptr->list_length = 2 * sizeof(*scd_ptr) + 11;
 326         scsi_ulto2b(roundup2(1 + sc_ptr->list_length, 4), sc_ptr->desc_length);
 327         scd_ptr = &sc_ptr->descr[0];
 328         scd_ptr->opcode = EXTENDED_COPY;
 329         scd_ptr->sa_length = 5;
 330         scd_ptr->supported_service_actions[0] = EC_EC_LID1;
 331         scd_ptr->supported_service_actions[1] = EC_EC_LID4;
 332         scd_ptr->supported_service_actions[2] = EC_PT;
 333         scd_ptr->supported_service_actions[3] = EC_WUT;
 334         scd_ptr->supported_service_actions[4] = EC_COA;
 335         scd_ptr = (struct scsi_vpd_tpc_descriptor_sc_descr *)
 336             &scd_ptr->supported_service_actions[scd_ptr->sa_length];
 337         scd_ptr->opcode = RECEIVE_COPY_STATUS;
 338         scd_ptr->sa_length = 6;
 339         scd_ptr->supported_service_actions[0] = RCS_RCS_LID1;
 340         scd_ptr->supported_service_actions[1] = RCS_RCFD;
 341         scd_ptr->supported_service_actions[2] = RCS_RCS_LID4;
 342         scd_ptr->supported_service_actions[3] = RCS_RCOP;
 343         scd_ptr->supported_service_actions[4] = RCS_RRTI;
 344         scd_ptr->supported_service_actions[5] = RCS_RART;
 345
 346         /* Parameter data. */
 347         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 348             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 349         pd_ptr = (struct scsi_vpd_tpc_descriptor_pd *)d_ptr;
 350         scsi_ulto2b(SVPD_TPC_PD, pd_ptr->desc_type);
 351         scsi_ulto2b(sizeof(*pd_ptr) - 4, pd_ptr->desc_length);
 352         scsi_ulto2b(TPC_MAX_CSCDS, pd_ptr->maximum_cscd_descriptor_count);
 353         scsi_ulto2b(TPC_MAX_SEGS, pd_ptr->maximum_segment_descriptor_count);
 354         scsi_ulto4b(TPC_MAX_LIST, pd_ptr->maximum_descriptor_list_length);
 355         scsi_ulto4b(TPC_MAX_INLINE, pd_ptr->maximum_inline_data_length);
 356
 357         /* Supported Descriptors */
 358         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 359             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 360         sd_ptr = (struct scsi_vpd_tpc_descriptor_sd *)d_ptr;
 361         scsi_ulto2b(SVPD_TPC_SD, sd_ptr->desc_type);
 362         scsi_ulto2b(roundup2(sizeof(*sd_ptr) - 4 + 4, 4), sd_ptr->desc_length);
 363         sd_ptr->list_length = 4;
 364         sd_ptr->supported_descriptor_codes[0] = EC_SEG_B2B;
 365         sd_ptr->supported_descriptor_codes[1] = EC_SEG_VERIFY;
 366         sd_ptr->supported_descriptor_codes[2] = EC_SEG_REGISTER_KEY;
 367         sd_ptr->supported_descriptor_codes[3] = EC_CSCD_ID;
 368
 369         /* Supported CSCD Descriptor IDs */
 370         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 371             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 372         sdid_ptr = (struct scsi_vpd_tpc_descriptor_sdid *)d_ptr;
 373         scsi_ulto2b(SVPD_TPC_SDID, sdid_ptr->desc_type);
 374         scsi_ulto2b(roundup2(sizeof(*sdid_ptr) - 4 + 2, 4), sdid_ptr->desc_length);
 375         scsi_ulto2b(2, sdid_ptr->list_length);
 376         scsi_ulto2b(0xffff, &sdid_ptr->supported_descriptor_ids[0]);
 377
 378         /* ROD Token Features */
 379         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 380             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 381         rtf_ptr = (struct scsi_vpd_tpc_descriptor_rtf *)d_ptr;
 382         scsi_ulto2b(SVPD_TPC_RTF, rtf_ptr->desc_type);
 383         scsi_ulto2b(sizeof(*rtf_ptr) - 4 + sizeof(*rtfb_ptr), rtf_ptr->desc_length);
 384         rtf_ptr->remote_tokens = 0;
 385         scsi_ulto4b(TPC_MIN_TOKEN_TIMEOUT, rtf_ptr->minimum_token_lifetime);
 386         scsi_ulto4b(UINT32_MAX, rtf_ptr->maximum_token_lifetime);
 387         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 388             rtf_ptr->maximum_token_inactivity_timeout);
 389         scsi_ulto2b(sizeof(*rtfb_ptr), rtf_ptr->type_specific_features_length);
 390         rtfb_ptr = (struct scsi_vpd_tpc_descriptor_rtf_block *)
 391             &rtf_ptr->type_specific_features;
 392         rtfb_ptr->type_format = SVPD_TPC_RTF_BLOCK;
 393         scsi_ulto2b(sizeof(*rtfb_ptr) - 4, rtfb_ptr->desc_length);
 394         scsi_ulto2b(0, rtfb_ptr->optimal_length_granularity);
 395         scsi_u64to8b(0, rtfb_ptr->maximum_bytes);
 396         scsi_u64to8b(0, rtfb_ptr->optimal_bytes);
 397         scsi_u64to8b(UINT64_MAX, rtfb_ptr->optimal_bytes_to_token_per_segment);
 398         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
 399             rtfb_ptr->optimal_bytes_from_token_per_segment);
 400
 401         /* Supported ROD Tokens */
 402         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 403             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 404         srt_ptr = (struct scsi_vpd_tpc_descriptor_srt *)d_ptr;
 405         scsi_ulto2b(SVPD_TPC_SRT, srt_ptr->desc_type);
 406         scsi_ulto2b(sizeof(*srt_ptr) - 4 + 2*sizeof(*srtd_ptr), srt_ptr->desc_length);
 407         scsi_ulto2b(2*sizeof(*srtd_ptr), srt_ptr->rod_type_descriptors_length);
 408         srtd_ptr = (struct scsi_vpd_tpc_descriptor_srtd *)
 409             &srt_ptr->rod_type_descriptors;
 410         scsi_ulto4b(ROD_TYPE_AUR, srtd_ptr->rod_type);
 411         srtd_ptr->flags = SVPD_TPC_SRTD_TIN | SVPD_TPC_SRTD_TOUT;
 412         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 413         srtd_ptr++;
 414         scsi_ulto4b(ROD_TYPE_BLOCK_ZERO, srtd_ptr->rod_type);
 415         srtd_ptr->flags = SVPD_TPC_SRTD_TIN;
 416         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 417
 418         /* General Copy Operations */
 419         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 420             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 421         gco_ptr = (struct scsi_vpd_tpc_descriptor_gco *)d_ptr;
 422         scsi_ulto2b(SVPD_TPC_GCO, gco_ptr->desc_type);
 423         scsi_ulto2b(sizeof(*gco_ptr) - 4, gco_ptr->desc_length);
 424         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->total_concurrent_copies);
 425         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->maximum_identified_concurrent_copies);
 426         scsi_ulto4b(TPC_MAX_SEG, gco_ptr->maximum_segment_length);
 427         gco_ptr->data_segment_granularity = 0;
 428         gco_ptr->inline_data_granularity = 0;
 429
 430         ctl_set_success(ctsio);
 431         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 432         ctsio->be_move_done = ctl_config_move_done;
 433         ctl_datamove((union ctl_io *)ctsio);
 434
 435         return (CTL_RETVAL_COMPLETE);
 436 }
 437
 438 int
 439 ctl_receive_copy_operating_parameters(struct ctl_scsiio *ctsio)
 440 {
 441         struct scsi_receive_copy_operating_parameters *cdb;
 442         struct scsi_receive_copy_operating_parameters_data *data;
 443         int retval;
 444         int alloc_len, total_len;
 445
 446         CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n"));
 447
 448         cdb = (struct scsi_receive_copy_operating_parameters *)ctsio->cdb;
 449
 450         retval = CTL_RETVAL_COMPLETE;
 451
 452         total_len = sizeof(*data) + 4;
 453         alloc_len = scsi_4btoul(cdb->length);
 454
 455         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 456
 457         ctsio->kern_sg_entries = 0;
 458
 459         if (total_len < alloc_len) {
 460                 ctsio->residual = alloc_len - total_len;
 461                 ctsio->kern_data_len = total_len;
 462                 ctsio->kern_total_len = total_len;
 463         } else {
 464                 ctsio->residual = 0;
 465                 ctsio->kern_data_len = alloc_len;
 466                 ctsio->kern_total_len = alloc_len;
 467         }
 468         ctsio->kern_data_resid = 0;
 469         ctsio->kern_rel_offset = 0;
 470
 471         data = (struct scsi_receive_copy_operating_parameters_data *)ctsio->kern_data_ptr;
 472         scsi_ulto4b(sizeof(*data) - 4 + 4, data->length);
 473         data->snlid = RCOP_SNLID;
 474         scsi_ulto2b(TPC_MAX_CSCDS, data->maximum_cscd_descriptor_count);
 475         scsi_ulto2b(TPC_MAX_SEGS, data->maximum_segment_descriptor_count);
 476         scsi_ulto4b(TPC_MAX_LIST, data->maximum_descriptor_list_length);
 477         scsi_ulto4b(TPC_MAX_SEG, data->maximum_segment_length);
 478         scsi_ulto4b(TPC_MAX_INLINE, data->maximum_inline_data_length);
 479         scsi_ulto4b(0, data->held_data_limit);
 480         scsi_ulto4b(0, data->maximum_stream_device_transfer_size);
 481         scsi_ulto2b(TPC_MAX_LISTS, data->total_concurrent_copies);
 482         data->maximum_concurrent_copies = TPC_MAX_LISTS;
 483         data->data_segment_granularity = 0;
 484         data->inline_data_granularity = 0;
 485         data->held_data_granularity = 0;
 486         data->implemented_descriptor_list_length = 4;
 487         data->list_of_implemented_descriptor_type_codes[0] = EC_SEG_B2B;
 488         data->list_of_implemented_descriptor_type_codes[1] = EC_SEG_VERIFY;
 489         data->list_of_implemented_descriptor_type_codes[2] = EC_SEG_REGISTER_KEY;
 490         data->list_of_implemented_descriptor_type_codes[3] = EC_CSCD_ID;
 491
 492         ctl_set_success(ctsio);
 493         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 494         ctsio->be_move_done = ctl_config_move_done;
 495         ctl_datamove((union ctl_io *)ctsio);
 496         return (retval);
 497 }
 498
 499 static struct tpc_list *
 500 tpc_find_list(struct ctl_lun *lun, uint32_t list_id, uint32_t init_idx)
 501 {
 502         struct tpc_list *list;
 503
 504         mtx_assert(&lun->lun_lock, MA_OWNED);
 505         TAILQ_FOREACH(list, &lun->tpc_lists, links) {
 506                 if ((list->flags & EC_LIST_ID_USAGE_MASK) !=
 507                      EC_LIST_ID_USAGE_NONE && list->list_id == list_id &&
 508                     list->init_idx == init_idx)
 509                         break;
 510         }
 511         return (list);
 512 }
 513
 514 int
 515 ctl_receive_copy_status_lid1(struct ctl_scsiio *ctsio)
 516 {
 517         struct ctl_lun *lun;
 518         struct scsi_receive_copy_status_lid1 *cdb;
 519         struct scsi_receive_copy_status_lid1_data *data;
 520         struct tpc_list *list;
 521         struct tpc_list list_copy;
 522         int retval;
 523         int alloc_len, total_len;
 524         uint32_t list_id;
 525
 526         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid1\n"));
 527
 528         cdb = (struct scsi_receive_copy_status_lid1 *)ctsio->cdb;
 529         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 530
 531         retval = CTL_RETVAL_COMPLETE;
 532
 533         list_id = cdb->list_identifier;
 534         mtx_lock(&lun->lun_lock);
 535         list = tpc_find_list(lun, list_id,
 536             ctl_get_initindex(&ctsio->io_hdr.nexus));
 537         if (list == NULL) {
 538                 mtx_unlock(&lun->lun_lock);
 539                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 540                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 541                     /*bit*/ 0);
 542                 ctl_done((union ctl_io *)ctsio);
 543                 return (retval);
 544         }
 545         list_copy = *list;
 546         if (list->completed) {
 547                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 548                 free(list, M_CTL);
 549         }
 550         mtx_unlock(&lun->lun_lock);
 551
 552         total_len = sizeof(*data);
 553         alloc_len = scsi_4btoul(cdb->length);
 554
 555         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 556
 557         ctsio->kern_sg_entries = 0;
 558
 559         if (total_len < alloc_len) {
 560                 ctsio->residual = alloc_len - total_len;
 561                 ctsio->kern_data_len = total_len;
 562                 ctsio->kern_total_len = total_len;
 563         } else {
 564                 ctsio->residual = 0;
 565                 ctsio->kern_data_len = alloc_len;
 566                 ctsio->kern_total_len = alloc_len;
 567         }
 568         ctsio->kern_data_resid = 0;
 569         ctsio->kern_rel_offset = 0;
 570
 571         data = (struct scsi_receive_copy_status_lid1_data *)ctsio->kern_data_ptr;
 572         scsi_ulto4b(sizeof(*data) - 4, data->available_data);
 573         if (list_copy.completed) {
 574                 if (list_copy.error || list_copy.abort)
 575                         data->copy_command_status = RCS_CCS_ERROR;
 576                 else
 577                         data->copy_command_status = RCS_CCS_COMPLETED;
 578         } else
 579                 data->copy_command_status = RCS_CCS_INPROG;
 580         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 581         if (list_copy.curbytes <= UINT32_MAX) {
 582                 data->transfer_count_units = RCS_TC_BYTES;
 583                 scsi_ulto4b(list_copy.curbytes, data->transfer_count);
 584         } else {
 585                 data->transfer_count_units = RCS_TC_MBYTES;
 586                 scsi_ulto4b(list_copy.curbytes >> 20, data->transfer_count);
 587         }
 588
 589         ctl_set_success(ctsio);
 590         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 591         ctsio->be_move_done = ctl_config_move_done;
 592         ctl_datamove((union ctl_io *)ctsio);
 593         return (retval);
 594 }
 595
 596 int
 597 ctl_receive_copy_failure_details(struct ctl_scsiio *ctsio)
 598 {
 599         struct ctl_lun *lun;
 600         struct scsi_receive_copy_failure_details *cdb;
 601         struct scsi_receive_copy_failure_details_data *data;
 602         struct tpc_list *list;
 603         struct tpc_list list_copy;
 604         int retval;
 605         int alloc_len, total_len;
 606         uint32_t list_id;
 607
 608         CTL_DEBUG_PRINT(("ctl_receive_copy_failure_details\n"));
 609
 610         cdb = (struct scsi_receive_copy_failure_details *)ctsio->cdb;
 611         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 612
 613         retval = CTL_RETVAL_COMPLETE;
 614
 615         list_id = cdb->list_identifier;
 616         mtx_lock(&lun->lun_lock);
 617         list = tpc_find_list(lun, list_id,
 618             ctl_get_initindex(&ctsio->io_hdr.nexus));
 619         if (list == NULL || !list->completed) {
 620                 mtx_unlock(&lun->lun_lock);
 621                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 622                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 623                     /*bit*/ 0);
 624                 ctl_done((union ctl_io *)ctsio);
 625                 return (retval);
 626         }
 627         list_copy = *list;
 628         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 629         free(list, M_CTL);
 630         mtx_unlock(&lun->lun_lock);
 631
 632         total_len = sizeof(*data) + list_copy.sense_len;
 633         alloc_len = scsi_4btoul(cdb->length);
 634
 635         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 636
 637         ctsio->kern_sg_entries = 0;
 638
 639         if (total_len < alloc_len) {
 640                 ctsio->residual = alloc_len - total_len;
 641                 ctsio->kern_data_len = total_len;
 642                 ctsio->kern_total_len = total_len;
 643         } else {
 644                 ctsio->residual = 0;
 645                 ctsio->kern_data_len = alloc_len;
 646                 ctsio->kern_total_len = alloc_len;
 647         }
 648         ctsio->kern_data_resid = 0;
 649         ctsio->kern_rel_offset = 0;
 650
 651         data = (struct scsi_receive_copy_failure_details_data *)ctsio->kern_data_ptr;
 652         if (list_copy.completed && (list_copy.error || list_copy.abort)) {
 653                 scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 654                     data->available_data);
 655                 data->copy_command_status = RCS_CCS_ERROR;
 656         } else
 657                 scsi_ulto4b(0, data->available_data);
 658         scsi_ulto2b(list_copy.sense_len, data->sense_data_length);
 659         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 660
 661         ctl_set_success(ctsio);
 662         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 663         ctsio->be_move_done = ctl_config_move_done;
 664         ctl_datamove((union ctl_io *)ctsio);
 665         return (retval);
 666 }
 667
 668 int
 669 ctl_receive_copy_status_lid4(struct ctl_scsiio *ctsio)
 670 {
 671         struct ctl_lun *lun;
 672         struct scsi_receive_copy_status_lid4 *cdb;
 673         struct scsi_receive_copy_status_lid4_data *data;
 674         struct tpc_list *list;
 675         struct tpc_list list_copy;
 676         int retval;
 677         int alloc_len, total_len;
 678         uint32_t list_id;
 679
 680         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid4\n"));
 681
 682         cdb = (struct scsi_receive_copy_status_lid4 *)ctsio->cdb;
 683         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 684
 685         retval = CTL_RETVAL_COMPLETE;
 686
 687         list_id = scsi_4btoul(cdb->list_identifier);
 688         mtx_lock(&lun->lun_lock);
 689         list = tpc_find_list(lun, list_id,
 690             ctl_get_initindex(&ctsio->io_hdr.nexus));
 691         if (list == NULL) {
 692                 mtx_unlock(&lun->lun_lock);
 693                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 694                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 695                     /*bit*/ 0);
 696                 ctl_done((union ctl_io *)ctsio);
 697                 return (retval);
 698         }
 699         list_copy = *list;
 700         if (list->completed) {
 701                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 702                 free(list, M_CTL);
 703         }
 704         mtx_unlock(&lun->lun_lock);
 705
 706         total_len = sizeof(*data) + list_copy.sense_len;
 707         alloc_len = scsi_4btoul(cdb->length);
 708
 709         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 710
 711         ctsio->kern_sg_entries = 0;
 712
 713         if (total_len < alloc_len) {
 714                 ctsio->residual = alloc_len - total_len;
 715                 ctsio->kern_data_len = total_len;
 716                 ctsio->kern_total_len = total_len;
 717         } else {
 718                 ctsio->residual = 0;
 719                 ctsio->kern_data_len = alloc_len;
 720                 ctsio->kern_total_len = alloc_len;
 721         }
 722         ctsio->kern_data_resid = 0;
 723         ctsio->kern_rel_offset = 0;
 724
 725         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
 726         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 727             data->available_data);
 728         data->response_to_service_action = list_copy.service_action;
 729         if (list_copy.completed) {
 730                 if (list_copy.error)
 731                         data->copy_command_status = RCS_CCS_ERROR;
 732                 else if (list_copy.abort)
 733                         data->copy_command_status = RCS_CCS_ABORTED;
 734                 else
 735                         data->copy_command_status = RCS_CCS_COMPLETED;
 736         } else
 737                 data->copy_command_status = RCS_CCS_INPROG_FG;
 738         scsi_ulto2b(list_copy.curops, data->operation_counter);
 739         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
 740         data->transfer_count_units = RCS_TC_BYTES;
 741         scsi_u64to8b(list_copy.curbytes, data->transfer_count);
 742         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 743         data->length_of_the_sense_data_field = list_copy.sense_len;
 744         data->sense_data_length = list_copy.sense_len;
 745         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 746
 747         ctl_set_success(ctsio);
 748         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 749         ctsio->be_move_done = ctl_config_move_done;
 750         ctl_datamove((union ctl_io *)ctsio);
 751         return (retval);
 752 }
 753
 754 int
 755 ctl_copy_operation_abort(struct ctl_scsiio *ctsio)
 756 {
 757         struct ctl_lun *lun;
 758         struct scsi_copy_operation_abort *cdb;
 759         struct tpc_list *list;
 760         int retval;
 761         uint32_t list_id;
 762
 763         CTL_DEBUG_PRINT(("ctl_copy_operation_abort\n"));
 764
 765         cdb = (struct scsi_copy_operation_abort *)ctsio->cdb;
 766         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 767
 768         retval = CTL_RETVAL_COMPLETE;
 769
 770         list_id = scsi_4btoul(cdb->list_identifier);
 771         mtx_lock(&lun->lun_lock);
 772         list = tpc_find_list(lun, list_id,
 773             ctl_get_initindex(&ctsio->io_hdr.nexus));
 774         if (list == NULL) {
 775                 mtx_unlock(&lun->lun_lock);
 776                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 777                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 778                     /*bit*/ 0);
 779                 ctl_done((union ctl_io *)ctsio);
 780                 return (retval);
 781         }
 782         list->abort = 1;
 783         mtx_unlock(&lun->lun_lock);
 784
 785         ctl_set_success(ctsio);
 786         ctl_done((union ctl_io *)ctsio);
 787         return (retval);
 788 }
 789
 790 static uint64_t
 791 tpc_resolve(struct tpc_list *list, uint16_t idx, uint32_t *ss,
 792     uint32_t *pb, uint32_t *pbo)
 793 {
 794
 795         if (idx == 0xffff) {
 796                 if (ss && list->lun->be_lun)
 797                         *ss = list->lun->be_lun->blocksize;
 798                 if (pb && list->lun->be_lun)
 799                         *pb = list->lun->be_lun->blocksize <<
 800                             list->lun->be_lun->pblockexp;
 801                 if (pbo && list->lun->be_lun)
 802                         *pbo = list->lun->be_lun->blocksize *
 803                             list->lun->be_lun->pblockoff;
 804                 return (list->lun->lun);
 805         }
 806         if (idx >= list->ncscd)
 807                 return (UINT64_MAX);
 808         return (tpcl_resolve(list->lun->ctl_softc,
 809             list->init_port, &list->cscd[idx], ss, pb, pbo));
 810 }
 811
 812 static int
 813 tpc_process_b2b(struct tpc_list *list)
 814 {
 815         struct scsi_ec_segment_b2b *seg;
 816         struct scsi_ec_cscd_dtsp *sdstp, *ddstp;
 817         struct tpc_io *tior, *tiow;
 818         struct runl run;
 819         uint64_t sl, dl;
 820         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
 821         int numlba;
 822         uint32_t srcblock, dstblock, pb, pbo, adj;
 823         uint8_t csi[4];
 824
 825         scsi_ulto4b(list->curseg, csi);
 826         if (list->stage == 1) {
 827                 while ((tior = TAILQ_FIRST(&list->allio)) != NULL) {
 828                         TAILQ_REMOVE(&list->allio, tior, links);
 829                         ctl_free_io(tior->io);
 830                         free(tior, M_CTL);
 831                 }
 832                 free(list->buf, M_CTL);
 833                 if (list->abort) {
 834                         ctl_set_task_aborted(list->ctsio);
 835                         return (CTL_RETVAL_ERROR);
 836                 } else if (list->error) {
 837                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 838                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 839                             /*asc*/ 0x0d, /*ascq*/ 0x01,
 840                             SSD_ELEM_COMMAND, sizeof(csi), csi,
 841                             SSD_ELEM_NONE);
 842                         return (CTL_RETVAL_ERROR);
 843                 }
 844                 list->cursectors += list->segsectors;
 845                 list->curbytes += list->segbytes;
 846                 return (CTL_RETVAL_COMPLETE);
 847         }
 848
 849         TAILQ_INIT(&list->allio);
 850         seg = (struct scsi_ec_segment_b2b *)list->seg[list->curseg];
 851         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), &srcblock, NULL, NULL);
 852         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), &dstblock, &pb, &pbo);
 853         if (sl >= CTL_MAX_LUNS || dl >= CTL_MAX_LUNS) {
 854                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 855                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 856                     /*asc*/ 0x08, /*ascq*/ 0x04,
 857                     SSD_ELEM_COMMAND, sizeof(csi), csi,
 858                     SSD_ELEM_NONE);
 859                 return (CTL_RETVAL_ERROR);
 860         }
 861         if (pbo > 0)
 862                 pbo = pb - pbo;
 863         sdstp = &list->cscd[scsi_2btoul(seg->src_cscd)].dtsp;
 864         if (scsi_3btoul(sdstp->block_length) != 0)
 865                 srcblock = scsi_3btoul(sdstp->block_length);
 866         ddstp = &list->cscd[scsi_2btoul(seg->dst_cscd)].dtsp;
 867         if (scsi_3btoul(ddstp->block_length) != 0)
 868                 dstblock = scsi_3btoul(ddstp->block_length);
 869         numlba = scsi_2btoul(seg->number_of_blocks);
 870         if (seg->flags & EC_SEG_DC)
 871                 numbytes = (off_t)numlba * dstblock;
 872         else
 873                 numbytes = (off_t)numlba * srcblock;
 874         srclba = scsi_8btou64(seg->src_lba);
 875         dstlba = scsi_8btou64(seg->dst_lba);
 876
 877 //      printf("Copy %ju bytes from %ju @ %ju to %ju @ %ju\n",
 878 //          (uintmax_t)numbytes, sl, scsi_8btou64(seg->src_lba),
 879 //          dl, scsi_8btou64(seg->dst_lba));
 880
 881         if (numbytes == 0)
 882                 return (CTL_RETVAL_COMPLETE);
 883
 884         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
 885                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 886                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 887                     /*asc*/ 0x26, /*ascq*/ 0x0A,
 888                     SSD_ELEM_COMMAND, sizeof(csi), csi,
 889                     SSD_ELEM_NONE);
 890                 return (CTL_RETVAL_ERROR);
 891         }
 892
 893         list->buf = malloc(numbytes, M_CTL, M_WAITOK);
 894         list->segbytes = numbytes;
 895         list->segsectors = numbytes / dstblock;
 896         donebytes = 0;
 897         TAILQ_INIT(&run);
 898         list->tbdio = 0;
 899         while (donebytes < numbytes) {
 900                 roundbytes = numbytes - donebytes;
 901                 if (roundbytes > TPC_MAX_IO_SIZE) {
 902                         roundbytes = TPC_MAX_IO_SIZE;
 903                         roundbytes -= roundbytes % dstblock;
 904                         if (pb > dstblock) {
 905                                 adj = (dstlba * dstblock + roundbytes - pbo) % pb;
 906                                 if (roundbytes > adj)
 907                                         roundbytes -= adj;
 908                         }
 909                 }
 910
 911                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 912                 TAILQ_INIT(&tior->run);
 913                 tior->list = list;
 914                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
 915                 tior->io = tpcl_alloc_io();
 916                 ctl_scsi_read_write(tior->io,
 917                                     /*data_ptr*/ &list->buf[donebytes],
 918                                     /*data_len*/ roundbytes,
 919                                     /*read_op*/ 1,
 920                                     /*byte2*/ 0,
 921                                     /*minimum_cdb_size*/ 0,
 922                                     /*lba*/ srclba,
 923                                     /*num_blocks*/ roundbytes / srcblock,
 924                                     /*tag_type*/ CTL_TAG_SIMPLE,
 925                                     /*control*/ 0);
 926                 tior->io->io_hdr.retries = 3;
 927                 tior->lun = sl;
 928                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 929
 930                 tiow = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 931                 TAILQ_INIT(&tiow->run);
 932                 tiow->list = list;
 933                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
 934                 tiow->io = tpcl_alloc_io();
 935                 ctl_scsi_read_write(tiow->io,
 936                                     /*data_ptr*/ &list->buf[donebytes],
 937                                     /*data_len*/ roundbytes,
 938                                     /*read_op*/ 0,
 939                                     /*byte2*/ 0,
 940                                     /*minimum_cdb_size*/ 0,
 941                                     /*lba*/ dstlba,
 942                                     /*num_blocks*/ roundbytes / dstblock,
 943                                     /*tag_type*/ CTL_TAG_SIMPLE,
 944                                     /*control*/ 0);
 945                 tiow->io->io_hdr.retries = 3;
 946                 tiow->lun = dl;
 947                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
 948
 949                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
 950                 TAILQ_INSERT_TAIL(&run, tior, rlinks);
 951                 list->tbdio++;
 952                 donebytes += roundbytes;
 953                 srclba += roundbytes / srcblock;
 954                 dstlba += roundbytes / dstblock;
 955         }
 956
 957         while ((tior = TAILQ_FIRST(&run)) != NULL) {
 958                 TAILQ_REMOVE(&run, tior, rlinks);
 959                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
 960                         panic("tpcl_queue() error");
 961         }
 962
 963         list->stage++;
 964         return (CTL_RETVAL_QUEUED);
 965 }
 966
 967 static int
 968 tpc_process_verify(struct tpc_list *list)
 969 {
 970         struct scsi_ec_segment_verify *seg;
 971         struct tpc_io *tio;
 972         uint64_t sl;
 973         uint8_t csi[4];
 974
 975         scsi_ulto4b(list->curseg, csi);
 976         if (list->stage == 1) {
 977                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
 978                         TAILQ_REMOVE(&list->allio, tio, links);
 979                         ctl_free_io(tio->io);
 980                         free(tio, M_CTL);
 981                 }
 982                 if (list->abort) {
 983                         ctl_set_task_aborted(list->ctsio);
 984                         return (CTL_RETVAL_ERROR);
 985                 } else if (list->error) {
 986                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 987                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 988                             /*asc*/ 0x0d, /*ascq*/ 0x01,
 989                             SSD_ELEM_COMMAND, sizeof(csi), csi,
 990                             SSD_ELEM_NONE);
 991                         return (CTL_RETVAL_ERROR);
 992                 } else
 993                         return (CTL_RETVAL_COMPLETE);
 994         }
 995
 996         TAILQ_INIT(&list->allio);
 997         seg = (struct scsi_ec_segment_verify *)list->seg[list->curseg];
 998         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), NULL, NULL, NULL);
 999         if (sl >= CTL_MAX_LUNS) {
1000                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1001                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1002                     /*asc*/ 0x08, /*ascq*/ 0x04,
1003                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1004                     SSD_ELEM_NONE);
1005                 return (CTL_RETVAL_ERROR);
1006         }
1007
1008 //      printf("Verify %ju\n", sl);
1009
1010         if ((seg->tur & 0x01) == 0)
1011                 return (CTL_RETVAL_COMPLETE);
1012
1013         list->tbdio = 1;
1014         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1015         TAILQ_INIT(&tio->run);
1016         tio->list = list;
1017         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1018         tio->io = tpcl_alloc_io();
1019         ctl_scsi_tur(tio->io, /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1020         tio->io->io_hdr.retries = 3;
1021         tio->lun = sl;
1022         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1023         list->stage++;
1024         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1025                 panic("tpcl_queue() error");
1026         return (CTL_RETVAL_QUEUED);
1027 }
1028
1029 static int
1030 tpc_process_register_key(struct tpc_list *list)
1031 {
1032         struct scsi_ec_segment_register_key *seg;
1033         struct tpc_io *tio;
1034         uint64_t dl;
1035         int datalen;
1036         uint8_t csi[4];
1037
1038         scsi_ulto4b(list->curseg, csi);
1039         if (list->stage == 1) {
1040                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1041                         TAILQ_REMOVE(&list->allio, tio, links);
1042                         ctl_free_io(tio->io);
1043                         free(tio, M_CTL);
1044                 }
1045                 free(list->buf, M_CTL);
1046                 if (list->abort) {
1047                         ctl_set_task_aborted(list->ctsio);
1048                         return (CTL_RETVAL_ERROR);
1049                 } else if (list->error) {
1050                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1051                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1052                             /*asc*/ 0x0d, /*ascq*/ 0x01,
1053                             SSD_ELEM_COMMAND, sizeof(csi), csi,
1054                             SSD_ELEM_NONE);
1055                         return (CTL_RETVAL_ERROR);
1056                 } else
1057                         return (CTL_RETVAL_COMPLETE);
1058         }
1059
1060         TAILQ_INIT(&list->allio);
1061         seg = (struct scsi_ec_segment_register_key *)list->seg[list->curseg];
1062         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), NULL, NULL, NULL);
1063         if (dl >= CTL_MAX_LUNS) {
1064                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1065                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1066                     /*asc*/ 0x08, /*ascq*/ 0x04,
1067                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1068                     SSD_ELEM_NONE);
1069                 return (CTL_RETVAL_ERROR);
1070         }
1071
1072 //      printf("Register Key %ju\n", dl);
1073
1074         list->tbdio = 1;
1075         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1076         TAILQ_INIT(&tio->run);
1077         tio->list = list;
1078         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1079         tio->io = tpcl_alloc_io();
1080         datalen = sizeof(struct scsi_per_res_out_parms);
1081         list->buf = malloc(datalen, M_CTL, M_WAITOK);
1082         ctl_scsi_persistent_res_out(tio->io,
1083             list->buf, datalen, SPRO_REGISTER, -1,
1084             scsi_8btou64(seg->res_key), scsi_8btou64(seg->sa_res_key),
1085             /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1086         tio->io->io_hdr.retries = 3;
1087         tio->lun = dl;
1088         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1089         list->stage++;
1090         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1091                 panic("tpcl_queue() error");
1092         return (CTL_RETVAL_QUEUED);
1093 }
1094
1095 static off_t
1096 tpc_ranges_length(struct scsi_range_desc *range, int nrange)
1097 {
1098         off_t length = 0;
1099         int r;
1100
1101         for (r = 0; r < nrange; r++)
1102                 length += scsi_4btoul(range[r].length);
1103         return (length);
1104 }
1105
1106 static int
1107 tpc_check_ranges(struct scsi_range_desc *range, int nrange)
1108 {
1109         uint64_t b1, b2;
1110         uint32_t l1, l2;
1111         int i, j;
1112
1113         for (i = 0; i < nrange - 1; i++) {
1114                 b1 = scsi_8btou64(range[i].lba);
1115                 l1 = scsi_4btoul(range[i].length);
1116                 for (j = i + 1; j < nrange; j++) {
1117                         b2 = scsi_8btou64(range[j].lba);
1118                         l2 = scsi_4btoul(range[j].length);
1119                         if (b1 + l1 > b2 && b2 + l2 > b1)
1120                                 return (-1);
1121                 }
1122         }
1123         return (0);
1124 }
1125
1126 static int
1127 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1128     int *srange, off_t *soffset)
1129 {
1130         off_t off;
1131         int r;
1132
1133         r = 0;
1134         off = 0;
1135         while (r < nrange) {
1136                 if (skip - off < scsi_4btoul(range[r].length)) {
1137                         *srange = r;
1138                         *soffset = skip - off;
1139                         return (0);
1140                 }
1141                 off += scsi_4btoul(range[r].length);
1142                 r++;
1143         }
1144         return (-1);
1145 }
1146
1147 static int
1148 tpc_process_wut(struct tpc_list *list)
1149 {
1150         struct tpc_io *tio, *tior, *tiow;
1151         struct runl run;
1152         int drange, srange;
1153         off_t doffset, soffset;
1154         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1155         uint32_t srcblock, dstblock, pb, pbo, adj;
1156
1157         if (list->stage > 0) {
1158                 /* Cleanup after previous rounds. */
1159                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1160                         TAILQ_REMOVE(&list->allio, tio, links);
1161                         ctl_free_io(tio->io);
1162                         free(tio, M_CTL);
1163                 }
1164                 free(list->buf, M_CTL);
1165                 if (list->abort) {
1166                         ctl_set_task_aborted(list->ctsio);
1167                         return (CTL_RETVAL_ERROR);
1168                 } else if (list->error) {
1169                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1170                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1171                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1172                         return (CTL_RETVAL_ERROR);
1173                 }
1174                 list->cursectors += list->segsectors;
1175                 list->curbytes += list->segbytes;
1176         }
1177
1178         /* Check where we are on destination ranges list. */
1179         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1180             &drange, &doffset) != 0)
1181                 return (CTL_RETVAL_COMPLETE);
1182         dstblock = list->lun->be_lun->blocksize;
1183         pb = dstblock << list->lun->be_lun->pblockexp;
1184         if (list->lun->be_lun->pblockoff > 0)
1185                 pbo = pb - dstblock * list->lun->be_lun->pblockoff;
1186         else
1187                 pbo = 0;
1188
1189         /* Check where we are on source ranges list. */
1190         srcblock = list->token->blocksize;
1191         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1192             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1193             &srange, &soffset) != 0) {
1194                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1195                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1196                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1197                 return (CTL_RETVAL_ERROR);
1198         }
1199
1200         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1201         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1202         numbytes = srcblock *
1203             (scsi_4btoul(list->token->range[srange].length) - soffset);
1204         numbytes = omin(numbytes, dstblock *
1205             (scsi_4btoul(list->range[drange].length) - doffset));
1206         if (numbytes > TPC_MAX_IOCHUNK_SIZE) {
1207                 numbytes = TPC_MAX_IOCHUNK_SIZE;
1208                 numbytes -= numbytes % dstblock;
1209                 if (pb > dstblock) {
1210                         adj = (dstlba * dstblock + numbytes - pbo) % pb;
1211                         if (numbytes > adj)
1212                                 numbytes -= adj;
1213                 }
1214         }
1215
1216         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1217                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1218                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1219                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1220                 return (CTL_RETVAL_ERROR);
1221         }
1222
1223         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1224             (list->token == NULL ? M_ZERO : 0));
1225         list->segbytes = numbytes;
1226         list->segsectors = numbytes / dstblock;
1227 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1228 //    srclba, dstlba);
1229         donebytes = 0;
1230         TAILQ_INIT(&run);
1231         list->tbdio = 0;
1232         TAILQ_INIT(&list->allio);
1233         while (donebytes < numbytes) {
1234                 roundbytes = numbytes - donebytes;
1235                 if (roundbytes > TPC_MAX_IO_SIZE) {
1236                         roundbytes = TPC_MAX_IO_SIZE;
1237                         roundbytes -= roundbytes % dstblock;
1238                         if (pb > dstblock) {
1239                                 adj = (dstlba * dstblock + roundbytes - pbo) % pb;
1240                                 if (roundbytes > adj)
1241                                         roundbytes -= adj;
1242                         }
1243                 }
1244
1245                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1246                 TAILQ_INIT(&tior->run);
1247                 tior->list = list;
1248                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1249                 tior->io = tpcl_alloc_io();
1250                 ctl_scsi_read_write(tior->io,
1251                                     /*data_ptr*/ &list->buf[donebytes],
1252                                     /*data_len*/ roundbytes,
1253                                     /*read_op*/ 1,
1254                                     /*byte2*/ 0,
1255                                     /*minimum_cdb_size*/ 0,
1256                                     /*lba*/ srclba,
1257                                     /*num_blocks*/ roundbytes / srcblock,
1258                                     /*tag_type*/ CTL_TAG_SIMPLE,
1259                                     /*control*/ 0);
1260                 tior->io->io_hdr.retries = 3;
1261                 tior->lun = list->token->lun;
1262                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1263
1264                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1265                 TAILQ_INIT(&tiow->run);
1266                 tiow->list = list;
1267                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1268                 tiow->io = tpcl_alloc_io();
1269                 ctl_scsi_read_write(tiow->io,
1270                                     /*data_ptr*/ &list->buf[donebytes],
1271                                     /*data_len*/ roundbytes,
1272                                     /*read_op*/ 0,
1273                                     /*byte2*/ 0,
1274                                     /*minimum_cdb_size*/ 0,
1275                                     /*lba*/ dstlba,
1276                                     /*num_blocks*/ roundbytes / dstblock,
1277                                     /*tag_type*/ CTL_TAG_SIMPLE,
1278                                     /*control*/ 0);
1279                 tiow->io->io_hdr.retries = 3;
1280                 tiow->lun = list->lun->lun;
1281                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1282
1283                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1284                 TAILQ_INSERT_TAIL(&run, tior, rlinks);
1285                 list->tbdio++;
1286                 donebytes += roundbytes;
1287                 srclba += roundbytes / srcblock;
1288                 dstlba += roundbytes / dstblock;
1289         }
1290
1291         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1292                 TAILQ_REMOVE(&run, tior, rlinks);
1293                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1294                         panic("tpcl_queue() error");
1295         }
1296
1297         list->stage++;
1298         return (CTL_RETVAL_QUEUED);
1299 }
1300
1301 static int
1302 tpc_process_zero_wut(struct tpc_list *list)
1303 {
1304         struct tpc_io *tio, *tiow;
1305         struct runl run, *prun;
1306         int r;
1307         uint32_t dstblock, len;
1308
1309         if (list->stage > 0) {
1310 complete:
1311                 /* Cleanup after previous rounds. */
1312                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1313                         TAILQ_REMOVE(&list->allio, tio, links);
1314                         ctl_free_io(tio->io);
1315                         free(tio, M_CTL);
1316                 }
1317                 if (list->abort) {
1318                         ctl_set_task_aborted(list->ctsio);
1319                         return (CTL_RETVAL_ERROR);
1320                 } else if (list->error) {
1321                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1322                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1323                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1324                         return (CTL_RETVAL_ERROR);
1325                 }
1326                 list->cursectors += list->segsectors;
1327                 list->curbytes += list->segbytes;
1328                 return (CTL_RETVAL_COMPLETE);
1329         }
1330
1331         dstblock = list->lun->be_lun->blocksize;
1332         TAILQ_INIT(&run);
1333         prun = &run;
1334         list->tbdio = 1;
1335         TAILQ_INIT(&list->allio);
1336         list->segsectors = 0;
1337         for (r = 0; r < list->nrange; r++) {
1338                 len = scsi_4btoul(list->range[r].length);
1339                 if (len == 0)
1340                         continue;
1341
1342                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1343                 TAILQ_INIT(&tiow->run);
1344                 tiow->list = list;
1345                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1346                 tiow->io = tpcl_alloc_io();
1347                 ctl_scsi_write_same(tiow->io,
1348                                     /*data_ptr*/ NULL,
1349                                     /*data_len*/ 0,
1350                                     /*byte2*/ SWS_NDOB,
1351                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1352                                     /*num_blocks*/ len,
1353                                     /*tag_type*/ CTL_TAG_SIMPLE,
1354                                     /*control*/ 0);
1355                 tiow->io->io_hdr.retries = 3;
1356                 tiow->lun = list->lun->lun;
1357                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1358
1359                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1360                 prun = &tiow->run;
1361                 list->segsectors += len;
1362         }
1363         list->segbytes = list->segsectors * dstblock;
1364
1365         if (TAILQ_EMPTY(&run))
1366                 goto complete;
1367
1368         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1369                 TAILQ_REMOVE(&run, tiow, rlinks);
1370                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1371                         panic("tpcl_queue() error");
1372         }
1373
1374         list->stage++;
1375         return (CTL_RETVAL_QUEUED);
1376 }
1377
1378 static void
1379 tpc_process(struct tpc_list *list)
1380 {
1381         struct ctl_lun *lun = list->lun;
1382         struct ctl_softc *softc = lun->ctl_softc;
1383         struct scsi_ec_segment *seg;
1384         struct ctl_scsiio *ctsio = list->ctsio;
1385         int retval = CTL_RETVAL_COMPLETE;
1386         uint8_t csi[4];
1387
1388         if (list->service_action == EC_WUT) {
1389                 if (list->token != NULL)
1390                         retval = tpc_process_wut(list);
1391                 else
1392                         retval = tpc_process_zero_wut(list);
1393                 if (retval == CTL_RETVAL_QUEUED)
1394                         return;
1395                 if (retval == CTL_RETVAL_ERROR) {
1396                         list->error = 1;
1397                         goto done;
1398                 }
1399         } else {
1400 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1401                 while (list->curseg < list->nseg) {
1402                         seg = list->seg[list->curseg];
1403                         switch (seg->type_code) {
1404                         case EC_SEG_B2B:
1405                                 retval = tpc_process_b2b(list);
1406                                 break;
1407                         case EC_SEG_VERIFY:
1408                                 retval = tpc_process_verify(list);
1409                                 break;
1410                         case EC_SEG_REGISTER_KEY:
1411                                 retval = tpc_process_register_key(list);
1412                                 break;
1413                         default:
1414                                 scsi_ulto4b(list->curseg, csi);
1415                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1416                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1417                                     /*asc*/ 0x26, /*ascq*/ 0x09,
1418                                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1419                                     SSD_ELEM_NONE);
1420                                 goto done;
1421                         }
1422                         if (retval == CTL_RETVAL_QUEUED)
1423                                 return;
1424                         if (retval == CTL_RETVAL_ERROR) {
1425                                 list->error = 1;
1426                                 goto done;
1427                         }
1428                         list->curseg++;
1429                         list->stage = 0;
1430                 }
1431         }
1432
1433         ctl_set_success(ctsio);
1434
1435 done:
1436 //printf("ZZZ done\n");
1437         free(list->params, M_CTL);
1438         list->params = NULL;
1439         if (list->token) {
1440                 mtx_lock(&softc->tpc_lock);
1441                 if (--list->token->active == 0)
1442                         list->token->last_active = time_uptime;
1443                 mtx_unlock(&softc->tpc_lock);
1444                 list->token = NULL;
1445         }
1446         mtx_lock(&lun->lun_lock);
1447         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1448                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1449                 free(list, M_CTL);
1450         } else {
1451                 list->completed = 1;
1452                 list->last_active = time_uptime;
1453                 list->sense_data = ctsio->sense_data;
1454                 list->sense_len = ctsio->sense_len;
1455                 list->scsi_status = ctsio->scsi_status;
1456         }
1457         mtx_unlock(&lun->lun_lock);
1458
1459         ctl_done((union ctl_io *)ctsio);
1460 }
1461
1462 /*
1463  * For any sort of check condition, busy, etc., we just retry.  We do not
1464  * decrement the retry count for unit attention type errors.  These are
1465  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1466  * we could end up with situations where a command will succeed in some
1467  * situations and fail in others, depending on whether a unit attention is
1468  * pending.  Also, some of our error recovery actions, most notably the
1469  * LUN reset action, will cause a unit attention.
1470  *
1471  * We can add more detail here later if necessary.
1472  */
1473 static tpc_error_action
1474 tpc_checkcond_parse(union ctl_io *io)
1475 {
1476         tpc_error_action error_action;
1477         int error_code, sense_key, asc, ascq;
1478
1479         /*
1480          * Default to retrying the command.
1481          */
1482         error_action = TPC_ERR_RETRY;
1483
1484         scsi_extract_sense_len(&io->scsiio.sense_data,
1485                                io->scsiio.sense_len,
1486                                &error_code,
1487                                &sense_key,
1488                                &asc,
1489                                &ascq,
1490                                /*show_errors*/ 1);
1491
1492         switch (error_code) {
1493         case SSD_DEFERRED_ERROR:
1494         case SSD_DESC_DEFERRED_ERROR:
1495                 error_action |= TPC_ERR_NO_DECREMENT;
1496                 break;
1497         case SSD_CURRENT_ERROR:
1498         case SSD_DESC_CURRENT_ERROR:
1499         default:
1500                 switch (sense_key) {
1501                 case SSD_KEY_UNIT_ATTENTION:
1502                         error_action |= TPC_ERR_NO_DECREMENT;
1503                         break;
1504                 case SSD_KEY_HARDWARE_ERROR:
1505                         /*
1506                          * This is our generic "something bad happened"
1507                          * error code.  It often isn't recoverable.
1508                          */
1509                         if ((asc == 0x44) && (ascq == 0x00))
1510                                 error_action = TPC_ERR_FAIL;
1511                         break;
1512                 case SSD_KEY_NOT_READY:
1513                         /*
1514                          * If the LUN is powered down, there likely isn't
1515                          * much point in retrying right now.
1516                          */
1517                         if ((asc == 0x04) && (ascq == 0x02))
1518                                 error_action = TPC_ERR_FAIL;
1519                         /*
1520                          * If the LUN is offline, there probably isn't much
1521                          * point in retrying, either.
1522                          */
1523                         if ((asc == 0x04) && (ascq == 0x03))
1524                                 error_action = TPC_ERR_FAIL;
1525                         break;
1526                 }
1527         }
1528         return (error_action);
1529 }
1530
1531 static tpc_error_action
1532 tpc_error_parse(union ctl_io *io)
1533 {
1534         tpc_error_action error_action = TPC_ERR_RETRY;
1535
1536         switch (io->io_hdr.io_type) {
1537         case CTL_IO_SCSI:
1538                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1539                 case CTL_SCSI_ERROR:
1540                         switch (io->scsiio.scsi_status) {
1541                         case SCSI_STATUS_CHECK_COND:
1542                                 error_action = tpc_checkcond_parse(io);
1543                                 break;
1544                         default:
1545                                 break;
1546                         }
1547                         break;
1548                 default:
1549                         break;
1550                 }
1551                 break;
1552         case CTL_IO_TASK:
1553                 break;
1554         default:
1555                 panic("%s: invalid ctl_io type %d\n", __func__,
1556                       io->io_hdr.io_type);
1557                 break;
1558         }
1559         return (error_action);
1560 }
1561
1562 void
1563 tpc_done(union ctl_io *io)
1564 {
1565         struct tpc_io *tio, *tior;
1566
1567         /*
1568          * Very minimal retry logic.  We basically retry if we got an error
1569          * back, and the retry count is greater than 0.  If we ever want
1570          * more sophisticated initiator type behavior, the CAM error
1571          * recovery code in ../common might be helpful.
1572          */
1573         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1574         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1575          && (io->io_hdr.retries > 0)) {
1576                 ctl_io_status old_status;
1577                 tpc_error_action error_action;
1578
1579                 error_action = tpc_error_parse(io);
1580                 switch (error_action & TPC_ERR_MASK) {
1581                 case TPC_ERR_FAIL:
1582                         break;
1583                 case TPC_ERR_RETRY:
1584                 default:
1585                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1586                                 io->io_hdr.retries--;
1587                         old_status = io->io_hdr.status;
1588                         io->io_hdr.status = CTL_STATUS_NONE;
1589                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1590                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1591                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1592                                 printf("%s: error returned from ctl_queue()!\n",
1593                                        __func__);
1594                                 io->io_hdr.status = old_status;
1595                         } else
1596                                 return;
1597                 }
1598         }
1599
1600         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1601                 tio->list->error = 1;
1602         else
1603                 atomic_add_int(&tio->list->curops, 1);
1604         if (!tio->list->error && !tio->list->abort) {
1605                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1606                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1607                         atomic_add_int(&tio->list->tbdio, 1);
1608                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1609                                 panic("tpcl_queue() error");
1610                 }
1611         }
1612         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1613                 tpc_process(tio->list);
1614 }
1615
1616 int
1617 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1618 {
1619         struct scsi_extended_copy *cdb;
1620         struct scsi_extended_copy_lid1_data *data;
1621         struct ctl_lun *lun;
1622         struct tpc_list *list, *tlist;
1623         uint8_t *ptr;
1624         char *value;
1625         int len, off, lencscd, lenseg, leninl, nseg;
1626
1627         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1628
1629         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1630         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1631         len = scsi_4btoul(cdb->length);
1632
1633         if (len == 0) {
1634                 ctl_set_success(ctsio);
1635                 goto done;
1636         }
1637         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1638             len > sizeof(struct scsi_extended_copy_lid1_data) +
1639             TPC_MAX_LIST + TPC_MAX_INLINE) {
1640                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1641                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1642                 goto done;
1643         }
1644
1645         /*
1646          * If we've got a kernel request that hasn't been malloced yet,
1647          * malloc it and tell the caller the data buffer is here.
1648          */
1649         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1650                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1651                 ctsio->kern_data_len = len;
1652                 ctsio->kern_total_len = len;
1653                 ctsio->kern_data_resid = 0;
1654                 ctsio->kern_rel_offset = 0;
1655                 ctsio->kern_sg_entries = 0;
1656                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1657                 ctsio->be_move_done = ctl_config_move_done;
1658                 ctl_datamove((union ctl_io *)ctsio);
1659
1660                 return (CTL_RETVAL_COMPLETE);
1661         }
1662
1663         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1664         lencscd = scsi_2btoul(data->cscd_list_length);
1665         lenseg = scsi_4btoul(data->segment_list_length);
1666         leninl = scsi_4btoul(data->inline_data_length);
1667         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1668                 ctl_set_sense(ctsio, /*current_error*/ 1,
1669                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1670                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1671                 goto done;
1672         }
1673         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1674                 ctl_set_sense(ctsio, /*current_error*/ 1,
1675                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1676                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1677                 goto done;
1678         }
1679         if (lencscd + lenseg > TPC_MAX_LIST ||
1680             leninl > TPC_MAX_INLINE ||
1681             len < sizeof(struct scsi_extended_copy_lid1_data) +
1682              lencscd + lenseg + leninl) {
1683                 ctl_set_param_len_error(ctsio);
1684                 goto done;
1685         }
1686
1687         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1688         list->service_action = cdb->service_action;
1689         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1690         if (value != NULL && strcmp(value, "on") == 0)
1691                 list->init_port = -1;
1692         else
1693                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1694         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1695         list->list_id = data->list_identifier;
1696         list->flags = data->flags;
1697         list->params = ctsio->kern_data_ptr;
1698         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1699         ptr = &data->data[lencscd];
1700         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1701                 if (nseg >= TPC_MAX_SEGS) {
1702                         free(list, M_CTL);
1703                         ctl_set_sense(ctsio, /*current_error*/ 1,
1704                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1705                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1706                         goto done;
1707                 }
1708                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1709                 off += sizeof(struct scsi_ec_segment) +
1710                     scsi_2btoul(list->seg[nseg]->descr_length);
1711         }
1712         list->inl = &data->data[lencscd + lenseg];
1713         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1714         list->nseg = nseg;
1715         list->leninl = leninl;
1716         list->ctsio = ctsio;
1717         list->lun = lun;
1718         mtx_lock(&lun->lun_lock);
1719         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1720                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1721                 if (tlist != NULL && !tlist->completed) {
1722                         mtx_unlock(&lun->lun_lock);
1723                         free(list, M_CTL);
1724                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1725                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1726                             /*bit*/ 0);
1727                         goto done;
1728                 }
1729                 if (tlist != NULL) {
1730                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1731                         free(tlist, M_CTL);
1732                 }
1733         }
1734         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1735         mtx_unlock(&lun->lun_lock);
1736
1737         tpc_process(list);
1738         return (CTL_RETVAL_COMPLETE);
1739
1740 done:
1741         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1742                 free(ctsio->kern_data_ptr, M_CTL);
1743                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1744         }
1745         ctl_done((union ctl_io *)ctsio);
1746         return (CTL_RETVAL_COMPLETE);
1747 }
1748
1749 int
1750 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1751 {
1752         struct scsi_extended_copy *cdb;
1753         struct scsi_extended_copy_lid4_data *data;
1754         struct ctl_lun *lun;
1755         struct tpc_list *list, *tlist;
1756         uint8_t *ptr;
1757         char *value;
1758         int len, off, lencscd, lenseg, leninl, nseg;
1759
1760         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1761
1762         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1763         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1764         len = scsi_4btoul(cdb->length);
1765
1766         if (len == 0) {
1767                 ctl_set_success(ctsio);
1768                 goto done;
1769         }
1770         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1771             len > sizeof(struct scsi_extended_copy_lid4_data) +
1772             TPC_MAX_LIST + TPC_MAX_INLINE) {
1773                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1774                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1775                 goto done;
1776         }
1777
1778         /*
1779          * If we've got a kernel request that hasn't been malloced yet,
1780          * malloc it and tell the caller the data buffer is here.
1781          */
1782         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1783                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1784                 ctsio->kern_data_len = len;
1785                 ctsio->kern_total_len = len;
1786                 ctsio->kern_data_resid = 0;
1787                 ctsio->kern_rel_offset = 0;
1788                 ctsio->kern_sg_entries = 0;
1789                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1790                 ctsio->be_move_done = ctl_config_move_done;
1791                 ctl_datamove((union ctl_io *)ctsio);
1792
1793                 return (CTL_RETVAL_COMPLETE);
1794         }
1795
1796         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1797         lencscd = scsi_2btoul(data->cscd_list_length);
1798         lenseg = scsi_2btoul(data->segment_list_length);
1799         leninl = scsi_2btoul(data->inline_data_length);
1800         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1801                 ctl_set_sense(ctsio, /*current_error*/ 1,
1802                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1803                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1804                 goto done;
1805         }
1806         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1807                 ctl_set_sense(ctsio, /*current_error*/ 1,
1808                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1809                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1810                 goto done;
1811         }
1812         if (lencscd + lenseg > TPC_MAX_LIST ||
1813             leninl > TPC_MAX_INLINE ||
1814             len < sizeof(struct scsi_extended_copy_lid1_data) +
1815              lencscd + lenseg + leninl) {
1816                 ctl_set_param_len_error(ctsio);
1817                 goto done;
1818         }
1819
1820         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1821         list->service_action = cdb->service_action;
1822         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1823         if (value != NULL && strcmp(value, "on") == 0)
1824                 list->init_port = -1;
1825         else
1826                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1827         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1828         list->list_id = scsi_4btoul(data->list_identifier);
1829         list->flags = data->flags;
1830         list->params = ctsio->kern_data_ptr;
1831         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1832         ptr = &data->data[lencscd];
1833         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1834                 if (nseg >= TPC_MAX_SEGS) {
1835                         free(list, M_CTL);
1836                         ctl_set_sense(ctsio, /*current_error*/ 1,
1837                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1838                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1839                         goto done;
1840                 }
1841                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1842                 off += sizeof(struct scsi_ec_segment) +
1843                     scsi_2btoul(list->seg[nseg]->descr_length);
1844         }
1845         list->inl = &data->data[lencscd + lenseg];
1846         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1847         list->nseg = nseg;
1848         list->leninl = leninl;
1849         list->ctsio = ctsio;
1850         list->lun = lun;
1851         mtx_lock(&lun->lun_lock);
1852         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1853                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1854                 if (tlist != NULL && !tlist->completed) {
1855                         mtx_unlock(&lun->lun_lock);
1856                         free(list, M_CTL);
1857                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1858                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1859                             /*bit*/ 0);
1860                         goto done;
1861                 }
1862                 if (tlist != NULL) {
1863                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1864                         free(tlist, M_CTL);
1865                 }
1866         }
1867         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1868         mtx_unlock(&lun->lun_lock);
1869
1870         tpc_process(list);
1871         return (CTL_RETVAL_COMPLETE);
1872
1873 done:
1874         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1875                 free(ctsio->kern_data_ptr, M_CTL);
1876                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1877         }
1878         ctl_done((union ctl_io *)ctsio);
1879         return (CTL_RETVAL_COMPLETE);
1880 }
1881
1882 static void
1883 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1884     struct scsi_token *token)
1885 {
1886         static int id = 0;
1887         struct scsi_vpd_id_descriptor *idd = NULL;
1888         struct scsi_ec_cscd_id *cscd;
1889         struct scsi_read_capacity_data_long *dtsd;
1890         int targid_len;
1891
1892         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1893         scsi_ulto2b(0x01f8, token->length);
1894         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1895         if (lun->lun_devid)
1896                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1897                     lun->lun_devid->data, lun->lun_devid->len,
1898                     scsi_devid_is_lun_naa);
1899         if (idd == NULL && lun->lun_devid)
1900                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1901                     lun->lun_devid->data, lun->lun_devid->len,
1902                     scsi_devid_is_lun_eui64);
1903         if (idd != NULL) {
1904                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1905                 cscd->type_code = EC_CSCD_ID;
1906                 cscd->luidt_pdt = T_DIRECT;
1907                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1908                 scsi_ulto3b(lun->be_lun->blocksize, cscd->dtsp.block_length);
1909         }
1910         scsi_u64to8b(0, &token->body[40]); /* XXX: Should be 128bit value. */
1911         scsi_u64to8b(len, &token->body[48]);
1912
1913         /* ROD token device type specific data (RC16 without first field) */
1914         dtsd = (struct scsi_read_capacity_data_long *)&token->body[88 - 8];
1915         scsi_ulto4b(lun->be_lun->blocksize, dtsd->length);
1916         dtsd->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
1917         scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, dtsd->lalba_lbp);
1918         if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
1919                 dtsd->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ;
1920
1921         if (port->target_devid) {
1922                 targid_len = port->target_devid->len;
1923                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1924         } else
1925                 targid_len = 32;
1926         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1927 };
1928
1929 int
1930 ctl_populate_token(struct ctl_scsiio *ctsio)
1931 {
1932         struct scsi_populate_token *cdb;
1933         struct scsi_populate_token_data *data;
1934         struct ctl_softc *softc;
1935         struct ctl_lun *lun;
1936         struct ctl_port *port;
1937         struct tpc_list *list, *tlist;
1938         struct tpc_token *token;
1939         int len, lendata, lendesc;
1940
1941         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1942
1943         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1944         softc = lun->ctl_softc;
1945         port = softc->ctl_ports[ctsio->io_hdr.nexus.targ_port];
1946         cdb = (struct scsi_populate_token *)ctsio->cdb;
1947         len = scsi_4btoul(cdb->length);
1948
1949         if (len < sizeof(struct scsi_populate_token_data) ||
1950             len > sizeof(struct scsi_populate_token_data) +
1951              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1952                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1953                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1954                 goto done;
1955         }
1956
1957         /*
1958          * If we've got a kernel request that hasn't been malloced yet,
1959          * malloc it and tell the caller the data buffer is here.
1960          */
1961         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1962                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1963                 ctsio->kern_data_len = len;
1964                 ctsio->kern_total_len = len;
1965                 ctsio->kern_data_resid = 0;
1966                 ctsio->kern_rel_offset = 0;
1967                 ctsio->kern_sg_entries = 0;
1968                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1969                 ctsio->be_move_done = ctl_config_move_done;
1970                 ctl_datamove((union ctl_io *)ctsio);
1971
1972                 return (CTL_RETVAL_COMPLETE);
1973         }
1974
1975         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1976         lendata = scsi_2btoul(data->length);
1977         if (lendata < sizeof(struct scsi_populate_token_data) - 2 +
1978             sizeof(struct scsi_range_desc)) {
1979                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1980                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
1981                 goto done;
1982         }
1983         lendesc = scsi_2btoul(data->range_descriptor_length);
1984         if (lendesc < sizeof(struct scsi_range_desc) ||
1985             len < sizeof(struct scsi_populate_token_data) + lendesc ||
1986             lendata < sizeof(struct scsi_populate_token_data) - 2 + lendesc) {
1987                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1988                     /*field*/ 14, /*bit_valid*/ 0, /*bit*/ 0);
1989                 goto done;
1990         }
1991 /*
1992         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
1993             scsi_4btoul(cdb->list_identifier),
1994             data->flags, scsi_4btoul(data->inactivity_timeout),
1995             scsi_4btoul(data->rod_type),
1996             scsi_2btoul(data->range_descriptor_length));
1997 */
1998
1999         /* Validate INACTIVITY TIMEOUT field */
2000         if (scsi_4btoul(data->inactivity_timeout) > TPC_MAX_TOKEN_TIMEOUT) {
2001                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2002                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
2003                     /*bit*/ 0);
2004                 goto done;
2005         }
2006
2007         /* Validate ROD TYPE field */
2008         if ((data->flags & EC_PT_RTV) &&
2009             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
2010                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2011                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
2012                 goto done;
2013         }
2014
2015         /* Validate list of ranges */
2016         if (tpc_check_ranges(&data->desc[0],
2017             scsi_2btoul(data->range_descriptor_length) /
2018             sizeof(struct scsi_range_desc))) {
2019                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2020                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2021                     /*bit*/ 0);
2022                 goto done;
2023         }
2024
2025         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2026         list->service_action = cdb->service_action;
2027         list->init_port = ctsio->io_hdr.nexus.targ_port;
2028         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2029         list->list_id = scsi_4btoul(cdb->list_identifier);
2030         list->flags = data->flags;
2031         list->ctsio = ctsio;
2032         list->lun = lun;
2033         mtx_lock(&lun->lun_lock);
2034         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2035         if (tlist != NULL && !tlist->completed) {
2036                 mtx_unlock(&lun->lun_lock);
2037                 free(list, M_CTL);
2038                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2039                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2040                     /*bit*/ 0);
2041                 goto done;
2042         }
2043         if (tlist != NULL) {
2044                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2045                 free(tlist, M_CTL);
2046         }
2047         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2048         mtx_unlock(&lun->lun_lock);
2049
2050         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
2051         token->lun = lun->lun;
2052         token->blocksize = lun->be_lun->blocksize;
2053         token->params = ctsio->kern_data_ptr;
2054         token->range = &data->desc[0];
2055         token->nrange = scsi_2btoul(data->range_descriptor_length) /
2056             sizeof(struct scsi_range_desc);
2057         list->cursectors = tpc_ranges_length(token->range, token->nrange);
2058         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
2059         tpc_create_token(lun, port, list->curbytes,
2060             (struct scsi_token *)token->token);
2061         token->active = 0;
2062         token->last_active = time_uptime;
2063         token->timeout = scsi_4btoul(data->inactivity_timeout);
2064         if (token->timeout == 0)
2065                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
2066         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
2067                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
2068         memcpy(list->res_token, token->token, sizeof(list->res_token));
2069         list->res_token_valid = 1;
2070         list->curseg = 0;
2071         list->completed = 1;
2072         list->last_active = time_uptime;
2073         mtx_lock(&softc->tpc_lock);
2074         TAILQ_INSERT_TAIL(&softc->tpc_tokens, token, links);
2075         mtx_unlock(&softc->tpc_lock);
2076         ctl_set_success(ctsio);
2077         ctl_done((union ctl_io *)ctsio);
2078         return (CTL_RETVAL_COMPLETE);
2079
2080 done:
2081         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2082                 free(ctsio->kern_data_ptr, M_CTL);
2083                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2084         }
2085         ctl_done((union ctl_io *)ctsio);
2086         return (CTL_RETVAL_COMPLETE);
2087 }
2088
2089 int
2090 ctl_write_using_token(struct ctl_scsiio *ctsio)
2091 {
2092         struct scsi_write_using_token *cdb;
2093         struct scsi_write_using_token_data *data;
2094         struct ctl_softc *softc;
2095         struct ctl_lun *lun;
2096         struct tpc_list *list, *tlist;
2097         struct tpc_token *token;
2098         int len, lendata, lendesc;
2099
2100         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
2101
2102         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2103         softc = lun->ctl_softc;
2104         cdb = (struct scsi_write_using_token *)ctsio->cdb;
2105         len = scsi_4btoul(cdb->length);
2106
2107         if (len < sizeof(struct scsi_write_using_token_data) ||
2108             len > sizeof(struct scsi_write_using_token_data) +
2109              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
2110                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
2111                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
2112                 goto done;
2113         }
2114
2115         /*
2116          * If we've got a kernel request that hasn't been malloced yet,
2117          * malloc it and tell the caller the data buffer is here.
2118          */
2119         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
2120                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
2121                 ctsio->kern_data_len = len;
2122                 ctsio->kern_total_len = len;
2123                 ctsio->kern_data_resid = 0;
2124                 ctsio->kern_rel_offset = 0;
2125                 ctsio->kern_sg_entries = 0;
2126                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2127                 ctsio->be_move_done = ctl_config_move_done;
2128                 ctl_datamove((union ctl_io *)ctsio);
2129
2130                 return (CTL_RETVAL_COMPLETE);
2131         }
2132
2133         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
2134         lendata = scsi_2btoul(data->length);
2135         if (lendata < sizeof(struct scsi_write_using_token_data) - 2 +
2136             sizeof(struct scsi_range_desc)) {
2137                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2138                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
2139                 goto done;
2140         }
2141         lendesc = scsi_2btoul(data->range_descriptor_length);
2142         if (lendesc < sizeof(struct scsi_range_desc) ||
2143             len < sizeof(struct scsi_write_using_token_data) + lendesc ||
2144             lendata < sizeof(struct scsi_write_using_token_data) - 2 + lendesc) {
2145                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2146                     /*field*/ 534, /*bit_valid*/ 0, /*bit*/ 0);
2147                 goto done;
2148         }
2149 /*
2150         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2151             scsi_4btoul(cdb->list_identifier),
2152             data->flags, scsi_8btou64(data->offset_into_rod),
2153             scsi_2btoul(data->range_descriptor_length));
2154 */
2155
2156         /* Validate list of ranges */
2157         if (tpc_check_ranges(&data->desc[0],
2158             scsi_2btoul(data->range_descriptor_length) /
2159             sizeof(struct scsi_range_desc))) {
2160                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2161                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2162                     /*bit*/ 0);
2163                 goto done;
2164         }
2165
2166         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2167         list->service_action = cdb->service_action;
2168         list->init_port = ctsio->io_hdr.nexus.targ_port;
2169         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2170         list->list_id = scsi_4btoul(cdb->list_identifier);
2171         list->flags = data->flags;
2172         list->params = ctsio->kern_data_ptr;
2173         list->range = &data->desc[0];
2174         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2175             sizeof(struct scsi_range_desc);
2176         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2177         list->ctsio = ctsio;
2178         list->lun = lun;
2179         mtx_lock(&lun->lun_lock);
2180         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2181         if (tlist != NULL && !tlist->completed) {
2182                 mtx_unlock(&lun->lun_lock);
2183                 free(list, M_CTL);
2184                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2185                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2186                     /*bit*/ 0);
2187                 goto done;
2188         }
2189         if (tlist != NULL) {
2190                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2191                 free(tlist, M_CTL);
2192         }
2193         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2194         mtx_unlock(&lun->lun_lock);
2195
2196         /* Block device zero ROD token -> no token. */
2197         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2198                 tpc_process(list);
2199                 return (CTL_RETVAL_COMPLETE);
2200         }
2201
2202         mtx_lock(&softc->tpc_lock);
2203         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2204                 if (memcmp(token->token, data->rod_token,
2205                     sizeof(data->rod_token)) == 0)
2206                         break;
2207         }
2208         if (token != NULL) {
2209                 token->active++;
2210                 list->token = token;
2211                 if (data->flags & EC_WUT_DEL_TKN)
2212                         token->timeout = 0;
2213         }
2214         mtx_unlock(&softc->tpc_lock);
2215         if (token == NULL) {
2216                 mtx_lock(&lun->lun_lock);
2217                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2218                 mtx_unlock(&lun->lun_lock);
2219                 free(list, M_CTL);
2220                 ctl_set_sense(ctsio, /*current_error*/ 1,
2221                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2222                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2223                 goto done;
2224         }
2225
2226         tpc_process(list);
2227         return (CTL_RETVAL_COMPLETE);
2228
2229 done:
2230         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2231                 free(ctsio->kern_data_ptr, M_CTL);
2232                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2233         }
2234         ctl_done((union ctl_io *)ctsio);
2235         return (CTL_RETVAL_COMPLETE);
2236 }
2237
2238 int
2239 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2240 {
2241         struct ctl_lun *lun;
2242         struct scsi_receive_rod_token_information *cdb;
2243         struct scsi_receive_copy_status_lid4_data *data;
2244         struct tpc_list *list;
2245         struct tpc_list list_copy;
2246         uint8_t *ptr;
2247         int retval;
2248         int alloc_len, total_len, token_len;
2249         uint32_t list_id;
2250
2251         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2252
2253         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2254         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2255
2256         retval = CTL_RETVAL_COMPLETE;
2257
2258         list_id = scsi_4btoul(cdb->list_identifier);
2259         mtx_lock(&lun->lun_lock);
2260         list = tpc_find_list(lun, list_id,
2261             ctl_get_initindex(&ctsio->io_hdr.nexus));
2262         if (list == NULL) {
2263                 mtx_unlock(&lun->lun_lock);
2264                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2265                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2266                     /*bit*/ 0);
2267                 ctl_done((union ctl_io *)ctsio);
2268                 return (retval);
2269         }
2270         list_copy = *list;
2271         if (list->completed) {
2272                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2273                 free(list, M_CTL);
2274         }
2275         mtx_unlock(&lun->lun_lock);
2276
2277         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2278         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2279         alloc_len = scsi_4btoul(cdb->length);
2280
2281         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2282
2283         ctsio->kern_sg_entries = 0;
2284
2285         if (total_len < alloc_len) {
2286                 ctsio->residual = alloc_len - total_len;
2287                 ctsio->kern_data_len = total_len;
2288                 ctsio->kern_total_len = total_len;
2289         } else {
2290                 ctsio->residual = 0;
2291                 ctsio->kern_data_len = alloc_len;
2292                 ctsio->kern_total_len = alloc_len;
2293         }
2294         ctsio->kern_data_resid = 0;
2295         ctsio->kern_rel_offset = 0;
2296
2297         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2298         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2299             4 + token_len, data->available_data);
2300         data->response_to_service_action = list_copy.service_action;
2301         if (list_copy.completed) {
2302                 if (list_copy.error)
2303                         data->copy_command_status = RCS_CCS_ERROR;
2304                 else if (list_copy.abort)
2305                         data->copy_command_status = RCS_CCS_ABORTED;
2306                 else
2307                         data->copy_command_status = RCS_CCS_COMPLETED;
2308         } else
2309                 data->copy_command_status = RCS_CCS_INPROG_FG;
2310         scsi_ulto2b(list_copy.curops, data->operation_counter);
2311         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2312         data->transfer_count_units = RCS_TC_LBAS;
2313         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2314         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2315         data->length_of_the_sense_data_field = list_copy.sense_len;
2316         data->sense_data_length = list_copy.sense_len;
2317         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2318
2319         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2320         scsi_ulto4b(token_len, &ptr[0]);
2321         if (list_copy.res_token_valid) {
2322                 scsi_ulto2b(0, &ptr[4]);
2323                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2324         }
2325 /*
2326         printf("RRTI(list=%u) valid=%d\n",
2327             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2328 */
2329         ctl_set_success(ctsio);
2330         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2331         ctsio->be_move_done = ctl_config_move_done;
2332         ctl_datamove((union ctl_io *)ctsio);
2333         return (retval);
2334 }
2335
2336 int
2337 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2338 {
2339         struct ctl_softc *softc;
2340         struct ctl_lun *lun;
2341         struct scsi_report_all_rod_tokens *cdb;
2342         struct scsi_report_all_rod_tokens_data *data;
2343         struct tpc_token *token;
2344         int retval;
2345         int alloc_len, total_len, tokens, i;
2346
2347         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2348
2349         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2350         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2351         softc = lun->ctl_softc;
2352
2353         retval = CTL_RETVAL_COMPLETE;
2354
2355         tokens = 0;
2356         mtx_lock(&softc->tpc_lock);
2357         TAILQ_FOREACH(token, &softc->tpc_tokens, links)
2358                 tokens++;
2359         mtx_unlock(&softc->tpc_lock);
2360         if (tokens > 512)
2361                 tokens = 512;
2362
2363         total_len = sizeof(*data) + tokens * 96;
2364         alloc_len = scsi_4btoul(cdb->length);
2365
2366         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2367
2368         ctsio->kern_sg_entries = 0;
2369
2370         if (total_len < alloc_len) {
2371                 ctsio->residual = alloc_len - total_len;
2372                 ctsio->kern_data_len = total_len;
2373                 ctsio->kern_total_len = total_len;
2374         } else {
2375                 ctsio->residual = 0;
2376                 ctsio->kern_data_len = alloc_len;
2377                 ctsio->kern_total_len = alloc_len;
2378         }
2379         ctsio->kern_data_resid = 0;
2380         ctsio->kern_rel_offset = 0;
2381
2382         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2383         i = 0;
2384         mtx_lock(&softc->tpc_lock);
2385         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2386                 if (i >= tokens)
2387                         break;
2388                 memcpy(&data->rod_management_token_list[i * 96],
2389                     token->token, 96);
2390                 i++;
2391         }
2392         mtx_unlock(&softc->tpc_lock);
2393         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2394 /*
2395         printf("RART tokens=%d\n", i);
2396 */
2397         ctl_set_success(ctsio);
2398         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2399         ctsio->be_move_done = ctl_config_move_done;
2400         ctl_datamove((union ctl_io *)ctsio);
2401         return (retval);
2402 }
2403