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_l(struct scsi_range_desc *range, int nrange, uint64_t maxlba)
1108 {
1109         uint64_t b1;
1110         uint32_t l1;
1111         int i;
1112
1113         for (i = 0; i < nrange; i++) {
1114                 b1 = scsi_8btou64(range[i].lba);
1115                 l1 = scsi_4btoul(range[i].length);
1116                 if (b1 + l1 < b1 || b1 + l1 > maxlba + 1)
1117                         return (-1);
1118         }
1119         return (0);
1120 }
1121
1122 static int
1123 tpc_check_ranges_x(struct scsi_range_desc *range, int nrange)
1124 {
1125         uint64_t b1, b2;
1126         uint32_t l1, l2;
1127         int i, j;
1128
1129         for (i = 0; i < nrange - 1; i++) {
1130                 b1 = scsi_8btou64(range[i].lba);
1131                 l1 = scsi_4btoul(range[i].length);
1132                 for (j = i + 1; j < nrange; j++) {
1133                         b2 = scsi_8btou64(range[j].lba);
1134                         l2 = scsi_4btoul(range[j].length);
1135                         if (b1 + l1 > b2 && b2 + l2 > b1)
1136                                 return (-1);
1137                 }
1138         }
1139         return (0);
1140 }
1141
1142 static int
1143 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1144     int *srange, off_t *soffset)
1145 {
1146         off_t off;
1147         int r;
1148
1149         r = 0;
1150         off = 0;
1151         while (r < nrange) {
1152                 if (skip - off < scsi_4btoul(range[r].length)) {
1153                         *srange = r;
1154                         *soffset = skip - off;
1155                         return (0);
1156                 }
1157                 off += scsi_4btoul(range[r].length);
1158                 r++;
1159         }
1160         return (-1);
1161 }
1162
1163 static int
1164 tpc_process_wut(struct tpc_list *list)
1165 {
1166         struct tpc_io *tio, *tior, *tiow;
1167         struct runl run;
1168         int drange, srange;
1169         off_t doffset, soffset;
1170         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1171         uint32_t srcblock, dstblock, pb, pbo, adj;
1172
1173         if (list->stage > 0) {
1174                 /* Cleanup after previous rounds. */
1175                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1176                         TAILQ_REMOVE(&list->allio, tio, links);
1177                         ctl_free_io(tio->io);
1178                         free(tio, M_CTL);
1179                 }
1180                 free(list->buf, M_CTL);
1181                 if (list->abort) {
1182                         ctl_set_task_aborted(list->ctsio);
1183                         return (CTL_RETVAL_ERROR);
1184                 } else if (list->error) {
1185                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1186                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1187                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1188                         return (CTL_RETVAL_ERROR);
1189                 }
1190                 list->cursectors += list->segsectors;
1191                 list->curbytes += list->segbytes;
1192         }
1193
1194         /* Check where we are on destination ranges list. */
1195         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1196             &drange, &doffset) != 0)
1197                 return (CTL_RETVAL_COMPLETE);
1198         dstblock = list->lun->be_lun->blocksize;
1199         pb = dstblock << list->lun->be_lun->pblockexp;
1200         if (list->lun->be_lun->pblockoff > 0)
1201                 pbo = pb - dstblock * list->lun->be_lun->pblockoff;
1202         else
1203                 pbo = 0;
1204
1205         /* Check where we are on source ranges list. */
1206         srcblock = list->token->blocksize;
1207         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1208             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1209             &srange, &soffset) != 0) {
1210                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1211                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1212                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1213                 return (CTL_RETVAL_ERROR);
1214         }
1215
1216         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1217         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1218         numbytes = srcblock *
1219             (scsi_4btoul(list->token->range[srange].length) - soffset);
1220         numbytes = omin(numbytes, dstblock *
1221             (scsi_4btoul(list->range[drange].length) - doffset));
1222         if (numbytes > TPC_MAX_IOCHUNK_SIZE) {
1223                 numbytes = TPC_MAX_IOCHUNK_SIZE;
1224                 numbytes -= numbytes % dstblock;
1225                 if (pb > dstblock) {
1226                         adj = (dstlba * dstblock + numbytes - pbo) % pb;
1227                         if (numbytes > adj)
1228                                 numbytes -= adj;
1229                 }
1230         }
1231
1232         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1233                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1234                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1235                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1236                 return (CTL_RETVAL_ERROR);
1237         }
1238
1239         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1240             (list->token == NULL ? M_ZERO : 0));
1241         list->segbytes = numbytes;
1242         list->segsectors = numbytes / dstblock;
1243 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1244 //    srclba, dstlba);
1245         donebytes = 0;
1246         TAILQ_INIT(&run);
1247         list->tbdio = 0;
1248         TAILQ_INIT(&list->allio);
1249         while (donebytes < numbytes) {
1250                 roundbytes = numbytes - donebytes;
1251                 if (roundbytes > TPC_MAX_IO_SIZE) {
1252                         roundbytes = TPC_MAX_IO_SIZE;
1253                         roundbytes -= roundbytes % dstblock;
1254                         if (pb > dstblock) {
1255                                 adj = (dstlba * dstblock + roundbytes - pbo) % pb;
1256                                 if (roundbytes > adj)
1257                                         roundbytes -= adj;
1258                         }
1259                 }
1260
1261                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1262                 TAILQ_INIT(&tior->run);
1263                 tior->list = list;
1264                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1265                 tior->io = tpcl_alloc_io();
1266                 ctl_scsi_read_write(tior->io,
1267                                     /*data_ptr*/ &list->buf[donebytes],
1268                                     /*data_len*/ roundbytes,
1269                                     /*read_op*/ 1,
1270                                     /*byte2*/ 0,
1271                                     /*minimum_cdb_size*/ 0,
1272                                     /*lba*/ srclba,
1273                                     /*num_blocks*/ roundbytes / srcblock,
1274                                     /*tag_type*/ CTL_TAG_SIMPLE,
1275                                     /*control*/ 0);
1276                 tior->io->io_hdr.retries = 3;
1277                 tior->lun = list->token->lun;
1278                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1279
1280                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1281                 TAILQ_INIT(&tiow->run);
1282                 tiow->list = list;
1283                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1284                 tiow->io = tpcl_alloc_io();
1285                 ctl_scsi_read_write(tiow->io,
1286                                     /*data_ptr*/ &list->buf[donebytes],
1287                                     /*data_len*/ roundbytes,
1288                                     /*read_op*/ 0,
1289                                     /*byte2*/ 0,
1290                                     /*minimum_cdb_size*/ 0,
1291                                     /*lba*/ dstlba,
1292                                     /*num_blocks*/ roundbytes / dstblock,
1293                                     /*tag_type*/ CTL_TAG_SIMPLE,
1294                                     /*control*/ 0);
1295                 tiow->io->io_hdr.retries = 3;
1296                 tiow->lun = list->lun->lun;
1297                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1298
1299                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1300                 TAILQ_INSERT_TAIL(&run, tior, rlinks);
1301                 list->tbdio++;
1302                 donebytes += roundbytes;
1303                 srclba += roundbytes / srcblock;
1304                 dstlba += roundbytes / dstblock;
1305         }
1306
1307         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1308                 TAILQ_REMOVE(&run, tior, rlinks);
1309                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1310                         panic("tpcl_queue() error");
1311         }
1312
1313         list->stage++;
1314         return (CTL_RETVAL_QUEUED);
1315 }
1316
1317 static int
1318 tpc_process_zero_wut(struct tpc_list *list)
1319 {
1320         struct tpc_io *tio, *tiow;
1321         struct runl run, *prun;
1322         int r;
1323         uint32_t dstblock, len;
1324
1325         if (list->stage > 0) {
1326 complete:
1327                 /* Cleanup after previous rounds. */
1328                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1329                         TAILQ_REMOVE(&list->allio, tio, links);
1330                         ctl_free_io(tio->io);
1331                         free(tio, M_CTL);
1332                 }
1333                 if (list->abort) {
1334                         ctl_set_task_aborted(list->ctsio);
1335                         return (CTL_RETVAL_ERROR);
1336                 } else if (list->error) {
1337                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1338                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1339                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1340                         return (CTL_RETVAL_ERROR);
1341                 }
1342                 list->cursectors += list->segsectors;
1343                 list->curbytes += list->segbytes;
1344                 return (CTL_RETVAL_COMPLETE);
1345         }
1346
1347         dstblock = list->lun->be_lun->blocksize;
1348         TAILQ_INIT(&run);
1349         prun = &run;
1350         list->tbdio = 1;
1351         TAILQ_INIT(&list->allio);
1352         list->segsectors = 0;
1353         for (r = 0; r < list->nrange; r++) {
1354                 len = scsi_4btoul(list->range[r].length);
1355                 if (len == 0)
1356                         continue;
1357
1358                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1359                 TAILQ_INIT(&tiow->run);
1360                 tiow->list = list;
1361                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1362                 tiow->io = tpcl_alloc_io();
1363                 ctl_scsi_write_same(tiow->io,
1364                                     /*data_ptr*/ NULL,
1365                                     /*data_len*/ 0,
1366                                     /*byte2*/ SWS_NDOB,
1367                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1368                                     /*num_blocks*/ len,
1369                                     /*tag_type*/ CTL_TAG_SIMPLE,
1370                                     /*control*/ 0);
1371                 tiow->io->io_hdr.retries = 3;
1372                 tiow->lun = list->lun->lun;
1373                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1374
1375                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1376                 prun = &tiow->run;
1377                 list->segsectors += len;
1378         }
1379         list->segbytes = list->segsectors * dstblock;
1380
1381         if (TAILQ_EMPTY(&run))
1382                 goto complete;
1383
1384         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1385                 TAILQ_REMOVE(&run, tiow, rlinks);
1386                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1387                         panic("tpcl_queue() error");
1388         }
1389
1390         list->stage++;
1391         return (CTL_RETVAL_QUEUED);
1392 }
1393
1394 static void
1395 tpc_process(struct tpc_list *list)
1396 {
1397         struct ctl_lun *lun = list->lun;
1398         struct ctl_softc *softc = lun->ctl_softc;
1399         struct scsi_ec_segment *seg;
1400         struct ctl_scsiio *ctsio = list->ctsio;
1401         int retval = CTL_RETVAL_COMPLETE;
1402         uint8_t csi[4];
1403
1404         if (list->service_action == EC_WUT) {
1405                 if (list->token != NULL)
1406                         retval = tpc_process_wut(list);
1407                 else
1408                         retval = tpc_process_zero_wut(list);
1409                 if (retval == CTL_RETVAL_QUEUED)
1410                         return;
1411                 if (retval == CTL_RETVAL_ERROR) {
1412                         list->error = 1;
1413                         goto done;
1414                 }
1415         } else {
1416 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1417                 while (list->curseg < list->nseg) {
1418                         seg = list->seg[list->curseg];
1419                         switch (seg->type_code) {
1420                         case EC_SEG_B2B:
1421                                 retval = tpc_process_b2b(list);
1422                                 break;
1423                         case EC_SEG_VERIFY:
1424                                 retval = tpc_process_verify(list);
1425                                 break;
1426                         case EC_SEG_REGISTER_KEY:
1427                                 retval = tpc_process_register_key(list);
1428                                 break;
1429                         default:
1430                                 scsi_ulto4b(list->curseg, csi);
1431                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1432                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1433                                     /*asc*/ 0x26, /*ascq*/ 0x09,
1434                                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1435                                     SSD_ELEM_NONE);
1436                                 goto done;
1437                         }
1438                         if (retval == CTL_RETVAL_QUEUED)
1439                                 return;
1440                         if (retval == CTL_RETVAL_ERROR) {
1441                                 list->error = 1;
1442                                 goto done;
1443                         }
1444                         list->curseg++;
1445                         list->stage = 0;
1446                 }
1447         }
1448
1449         ctl_set_success(ctsio);
1450
1451 done:
1452 //printf("ZZZ done\n");
1453         free(list->params, M_CTL);
1454         list->params = NULL;
1455         if (list->token) {
1456                 mtx_lock(&softc->tpc_lock);
1457                 if (--list->token->active == 0)
1458                         list->token->last_active = time_uptime;
1459                 mtx_unlock(&softc->tpc_lock);
1460                 list->token = NULL;
1461         }
1462         mtx_lock(&lun->lun_lock);
1463         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1464                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1465                 free(list, M_CTL);
1466         } else {
1467                 list->completed = 1;
1468                 list->last_active = time_uptime;
1469                 list->sense_data = ctsio->sense_data;
1470                 list->sense_len = ctsio->sense_len;
1471                 list->scsi_status = ctsio->scsi_status;
1472         }
1473         mtx_unlock(&lun->lun_lock);
1474
1475         ctl_done((union ctl_io *)ctsio);
1476 }
1477
1478 /*
1479  * For any sort of check condition, busy, etc., we just retry.  We do not
1480  * decrement the retry count for unit attention type errors.  These are
1481  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1482  * we could end up with situations where a command will succeed in some
1483  * situations and fail in others, depending on whether a unit attention is
1484  * pending.  Also, some of our error recovery actions, most notably the
1485  * LUN reset action, will cause a unit attention.
1486  *
1487  * We can add more detail here later if necessary.
1488  */
1489 static tpc_error_action
1490 tpc_checkcond_parse(union ctl_io *io)
1491 {
1492         tpc_error_action error_action;
1493         int error_code, sense_key, asc, ascq;
1494
1495         /*
1496          * Default to retrying the command.
1497          */
1498         error_action = TPC_ERR_RETRY;
1499
1500         scsi_extract_sense_len(&io->scsiio.sense_data,
1501                                io->scsiio.sense_len,
1502                                &error_code,
1503                                &sense_key,
1504                                &asc,
1505                                &ascq,
1506                                /*show_errors*/ 1);
1507
1508         switch (error_code) {
1509         case SSD_DEFERRED_ERROR:
1510         case SSD_DESC_DEFERRED_ERROR:
1511                 error_action |= TPC_ERR_NO_DECREMENT;
1512                 break;
1513         case SSD_CURRENT_ERROR:
1514         case SSD_DESC_CURRENT_ERROR:
1515         default:
1516                 switch (sense_key) {
1517                 case SSD_KEY_UNIT_ATTENTION:
1518                         error_action |= TPC_ERR_NO_DECREMENT;
1519                         break;
1520                 case SSD_KEY_HARDWARE_ERROR:
1521                         /*
1522                          * This is our generic "something bad happened"
1523                          * error code.  It often isn't recoverable.
1524                          */
1525                         if ((asc == 0x44) && (ascq == 0x00))
1526                                 error_action = TPC_ERR_FAIL;
1527                         break;
1528                 case SSD_KEY_NOT_READY:
1529                         /*
1530                          * If the LUN is powered down, there likely isn't
1531                          * much point in retrying right now.
1532                          */
1533                         if ((asc == 0x04) && (ascq == 0x02))
1534                                 error_action = TPC_ERR_FAIL;
1535                         /*
1536                          * If the LUN is offline, there probably isn't much
1537                          * point in retrying, either.
1538                          */
1539                         if ((asc == 0x04) && (ascq == 0x03))
1540                                 error_action = TPC_ERR_FAIL;
1541                         break;
1542                 }
1543         }
1544         return (error_action);
1545 }
1546
1547 static tpc_error_action
1548 tpc_error_parse(union ctl_io *io)
1549 {
1550         tpc_error_action error_action = TPC_ERR_RETRY;
1551
1552         switch (io->io_hdr.io_type) {
1553         case CTL_IO_SCSI:
1554                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1555                 case CTL_SCSI_ERROR:
1556                         switch (io->scsiio.scsi_status) {
1557                         case SCSI_STATUS_CHECK_COND:
1558                                 error_action = tpc_checkcond_parse(io);
1559                                 break;
1560                         default:
1561                                 break;
1562                         }
1563                         break;
1564                 default:
1565                         break;
1566                 }
1567                 break;
1568         case CTL_IO_TASK:
1569                 break;
1570         default:
1571                 panic("%s: invalid ctl_io type %d\n", __func__,
1572                       io->io_hdr.io_type);
1573                 break;
1574         }
1575         return (error_action);
1576 }
1577
1578 void
1579 tpc_done(union ctl_io *io)
1580 {
1581         struct tpc_io *tio, *tior;
1582
1583         /*
1584          * Very minimal retry logic.  We basically retry if we got an error
1585          * back, and the retry count is greater than 0.  If we ever want
1586          * more sophisticated initiator type behavior, the CAM error
1587          * recovery code in ../common might be helpful.
1588          */
1589         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1590         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1591          && (io->io_hdr.retries > 0)) {
1592                 ctl_io_status old_status;
1593                 tpc_error_action error_action;
1594
1595                 error_action = tpc_error_parse(io);
1596                 switch (error_action & TPC_ERR_MASK) {
1597                 case TPC_ERR_FAIL:
1598                         break;
1599                 case TPC_ERR_RETRY:
1600                 default:
1601                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1602                                 io->io_hdr.retries--;
1603                         old_status = io->io_hdr.status;
1604                         io->io_hdr.status = CTL_STATUS_NONE;
1605                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1606                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1607                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1608                                 printf("%s: error returned from ctl_queue()!\n",
1609                                        __func__);
1610                                 io->io_hdr.status = old_status;
1611                         } else
1612                                 return;
1613                 }
1614         }
1615
1616         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1617                 tio->list->error = 1;
1618         else
1619                 atomic_add_int(&tio->list->curops, 1);
1620         if (!tio->list->error && !tio->list->abort) {
1621                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1622                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1623                         atomic_add_int(&tio->list->tbdio, 1);
1624                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1625                                 panic("tpcl_queue() error");
1626                 }
1627         }
1628         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1629                 tpc_process(tio->list);
1630 }
1631
1632 int
1633 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1634 {
1635         struct scsi_extended_copy *cdb;
1636         struct scsi_extended_copy_lid1_data *data;
1637         struct ctl_lun *lun;
1638         struct tpc_list *list, *tlist;
1639         uint8_t *ptr;
1640         char *value;
1641         int len, off, lencscd, lenseg, leninl, nseg;
1642
1643         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1644
1645         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1646         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1647         len = scsi_4btoul(cdb->length);
1648
1649         if (len == 0) {
1650                 ctl_set_success(ctsio);
1651                 goto done;
1652         }
1653         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1654             len > sizeof(struct scsi_extended_copy_lid1_data) +
1655             TPC_MAX_LIST + TPC_MAX_INLINE) {
1656                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1657                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1658                 goto done;
1659         }
1660
1661         /*
1662          * If we've got a kernel request that hasn't been malloced yet,
1663          * malloc it and tell the caller the data buffer is here.
1664          */
1665         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1666                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1667                 ctsio->kern_data_len = len;
1668                 ctsio->kern_total_len = len;
1669                 ctsio->kern_data_resid = 0;
1670                 ctsio->kern_rel_offset = 0;
1671                 ctsio->kern_sg_entries = 0;
1672                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1673                 ctsio->be_move_done = ctl_config_move_done;
1674                 ctl_datamove((union ctl_io *)ctsio);
1675
1676                 return (CTL_RETVAL_COMPLETE);
1677         }
1678
1679         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1680         lencscd = scsi_2btoul(data->cscd_list_length);
1681         lenseg = scsi_4btoul(data->segment_list_length);
1682         leninl = scsi_4btoul(data->inline_data_length);
1683         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1684                 ctl_set_sense(ctsio, /*current_error*/ 1,
1685                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1686                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1687                 goto done;
1688         }
1689         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1690                 ctl_set_sense(ctsio, /*current_error*/ 1,
1691                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1692                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1693                 goto done;
1694         }
1695         if (lencscd + lenseg > TPC_MAX_LIST ||
1696             leninl > TPC_MAX_INLINE ||
1697             len < sizeof(struct scsi_extended_copy_lid1_data) +
1698              lencscd + lenseg + leninl) {
1699                 ctl_set_param_len_error(ctsio);
1700                 goto done;
1701         }
1702
1703         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1704         list->service_action = cdb->service_action;
1705         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1706         if (value != NULL && strcmp(value, "on") == 0)
1707                 list->init_port = -1;
1708         else
1709                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1710         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1711         list->list_id = data->list_identifier;
1712         list->flags = data->flags;
1713         list->params = ctsio->kern_data_ptr;
1714         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1715         ptr = &data->data[lencscd];
1716         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1717                 if (nseg >= TPC_MAX_SEGS) {
1718                         free(list, M_CTL);
1719                         ctl_set_sense(ctsio, /*current_error*/ 1,
1720                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1721                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1722                         goto done;
1723                 }
1724                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1725                 off += sizeof(struct scsi_ec_segment) +
1726                     scsi_2btoul(list->seg[nseg]->descr_length);
1727         }
1728         list->inl = &data->data[lencscd + lenseg];
1729         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1730         list->nseg = nseg;
1731         list->leninl = leninl;
1732         list->ctsio = ctsio;
1733         list->lun = lun;
1734         mtx_lock(&lun->lun_lock);
1735         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1736                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1737                 if (tlist != NULL && !tlist->completed) {
1738                         mtx_unlock(&lun->lun_lock);
1739                         free(list, M_CTL);
1740                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1741                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1742                             /*bit*/ 0);
1743                         goto done;
1744                 }
1745                 if (tlist != NULL) {
1746                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1747                         free(tlist, M_CTL);
1748                 }
1749         }
1750         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1751         mtx_unlock(&lun->lun_lock);
1752
1753         tpc_process(list);
1754         return (CTL_RETVAL_COMPLETE);
1755
1756 done:
1757         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1758                 free(ctsio->kern_data_ptr, M_CTL);
1759                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1760         }
1761         ctl_done((union ctl_io *)ctsio);
1762         return (CTL_RETVAL_COMPLETE);
1763 }
1764
1765 int
1766 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1767 {
1768         struct scsi_extended_copy *cdb;
1769         struct scsi_extended_copy_lid4_data *data;
1770         struct ctl_lun *lun;
1771         struct tpc_list *list, *tlist;
1772         uint8_t *ptr;
1773         char *value;
1774         int len, off, lencscd, lenseg, leninl, nseg;
1775
1776         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1777
1778         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1779         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1780         len = scsi_4btoul(cdb->length);
1781
1782         if (len == 0) {
1783                 ctl_set_success(ctsio);
1784                 goto done;
1785         }
1786         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1787             len > sizeof(struct scsi_extended_copy_lid4_data) +
1788             TPC_MAX_LIST + TPC_MAX_INLINE) {
1789                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1790                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1791                 goto done;
1792         }
1793
1794         /*
1795          * If we've got a kernel request that hasn't been malloced yet,
1796          * malloc it and tell the caller the data buffer is here.
1797          */
1798         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1799                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1800                 ctsio->kern_data_len = len;
1801                 ctsio->kern_total_len = len;
1802                 ctsio->kern_data_resid = 0;
1803                 ctsio->kern_rel_offset = 0;
1804                 ctsio->kern_sg_entries = 0;
1805                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1806                 ctsio->be_move_done = ctl_config_move_done;
1807                 ctl_datamove((union ctl_io *)ctsio);
1808
1809                 return (CTL_RETVAL_COMPLETE);
1810         }
1811
1812         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1813         lencscd = scsi_2btoul(data->cscd_list_length);
1814         lenseg = scsi_2btoul(data->segment_list_length);
1815         leninl = scsi_2btoul(data->inline_data_length);
1816         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1817                 ctl_set_sense(ctsio, /*current_error*/ 1,
1818                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1819                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1820                 goto done;
1821         }
1822         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1823                 ctl_set_sense(ctsio, /*current_error*/ 1,
1824                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1825                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1826                 goto done;
1827         }
1828         if (lencscd + lenseg > TPC_MAX_LIST ||
1829             leninl > TPC_MAX_INLINE ||
1830             len < sizeof(struct scsi_extended_copy_lid1_data) +
1831              lencscd + lenseg + leninl) {
1832                 ctl_set_param_len_error(ctsio);
1833                 goto done;
1834         }
1835
1836         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1837         list->service_action = cdb->service_action;
1838         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1839         if (value != NULL && strcmp(value, "on") == 0)
1840                 list->init_port = -1;
1841         else
1842                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1843         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1844         list->list_id = scsi_4btoul(data->list_identifier);
1845         list->flags = data->flags;
1846         list->params = ctsio->kern_data_ptr;
1847         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1848         ptr = &data->data[lencscd];
1849         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1850                 if (nseg >= TPC_MAX_SEGS) {
1851                         free(list, M_CTL);
1852                         ctl_set_sense(ctsio, /*current_error*/ 1,
1853                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1854                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1855                         goto done;
1856                 }
1857                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1858                 off += sizeof(struct scsi_ec_segment) +
1859                     scsi_2btoul(list->seg[nseg]->descr_length);
1860         }
1861         list->inl = &data->data[lencscd + lenseg];
1862         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1863         list->nseg = nseg;
1864         list->leninl = leninl;
1865         list->ctsio = ctsio;
1866         list->lun = lun;
1867         mtx_lock(&lun->lun_lock);
1868         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1869                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1870                 if (tlist != NULL && !tlist->completed) {
1871                         mtx_unlock(&lun->lun_lock);
1872                         free(list, M_CTL);
1873                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1874                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1875                             /*bit*/ 0);
1876                         goto done;
1877                 }
1878                 if (tlist != NULL) {
1879                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1880                         free(tlist, M_CTL);
1881                 }
1882         }
1883         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1884         mtx_unlock(&lun->lun_lock);
1885
1886         tpc_process(list);
1887         return (CTL_RETVAL_COMPLETE);
1888
1889 done:
1890         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1891                 free(ctsio->kern_data_ptr, M_CTL);
1892                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1893         }
1894         ctl_done((union ctl_io *)ctsio);
1895         return (CTL_RETVAL_COMPLETE);
1896 }
1897
1898 static void
1899 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1900     struct scsi_token *token)
1901 {
1902         static int id = 0;
1903         struct scsi_vpd_id_descriptor *idd = NULL;
1904         struct scsi_ec_cscd_id *cscd;
1905         struct scsi_read_capacity_data_long *dtsd;
1906         int targid_len;
1907
1908         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1909         scsi_ulto2b(0x01f8, token->length);
1910         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1911         if (lun->lun_devid)
1912                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1913                     lun->lun_devid->data, lun->lun_devid->len,
1914                     scsi_devid_is_lun_naa);
1915         if (idd == NULL && lun->lun_devid)
1916                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1917                     lun->lun_devid->data, lun->lun_devid->len,
1918                     scsi_devid_is_lun_eui64);
1919         if (idd != NULL) {
1920                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1921                 cscd->type_code = EC_CSCD_ID;
1922                 cscd->luidt_pdt = T_DIRECT;
1923                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1924                 scsi_ulto3b(lun->be_lun->blocksize, cscd->dtsp.block_length);
1925         }
1926         scsi_u64to8b(0, &token->body[40]); /* XXX: Should be 128bit value. */
1927         scsi_u64to8b(len, &token->body[48]);
1928
1929         /* ROD token device type specific data (RC16 without first field) */
1930         dtsd = (struct scsi_read_capacity_data_long *)&token->body[88 - 8];
1931         scsi_ulto4b(lun->be_lun->blocksize, dtsd->length);
1932         dtsd->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
1933         scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, dtsd->lalba_lbp);
1934         if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
1935                 dtsd->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ;
1936
1937         if (port->target_devid) {
1938                 targid_len = port->target_devid->len;
1939                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1940         } else
1941                 targid_len = 32;
1942         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1943 };
1944
1945 int
1946 ctl_populate_token(struct ctl_scsiio *ctsio)
1947 {
1948         struct scsi_populate_token *cdb;
1949         struct scsi_populate_token_data *data;
1950         struct ctl_softc *softc;
1951         struct ctl_lun *lun;
1952         struct ctl_port *port;
1953         struct tpc_list *list, *tlist;
1954         struct tpc_token *token;
1955         int len, lendata, lendesc;
1956
1957         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1958
1959         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1960         softc = lun->ctl_softc;
1961         port = softc->ctl_ports[ctsio->io_hdr.nexus.targ_port];
1962         cdb = (struct scsi_populate_token *)ctsio->cdb;
1963         len = scsi_4btoul(cdb->length);
1964
1965         if (len < sizeof(struct scsi_populate_token_data) ||
1966             len > sizeof(struct scsi_populate_token_data) +
1967              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1968                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1969                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1970                 goto done;
1971         }
1972
1973         /*
1974          * If we've got a kernel request that hasn't been malloced yet,
1975          * malloc it and tell the caller the data buffer is here.
1976          */
1977         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1978                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1979                 ctsio->kern_data_len = len;
1980                 ctsio->kern_total_len = len;
1981                 ctsio->kern_data_resid = 0;
1982                 ctsio->kern_rel_offset = 0;
1983                 ctsio->kern_sg_entries = 0;
1984                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1985                 ctsio->be_move_done = ctl_config_move_done;
1986                 ctl_datamove((union ctl_io *)ctsio);
1987
1988                 return (CTL_RETVAL_COMPLETE);
1989         }
1990
1991         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1992         lendata = scsi_2btoul(data->length);
1993         if (lendata < sizeof(struct scsi_populate_token_data) - 2 +
1994             sizeof(struct scsi_range_desc)) {
1995                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1996                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
1997                 goto done;
1998         }
1999         lendesc = scsi_2btoul(data->range_descriptor_length);
2000         if (lendesc < sizeof(struct scsi_range_desc) ||
2001             len < sizeof(struct scsi_populate_token_data) + lendesc ||
2002             lendata < sizeof(struct scsi_populate_token_data) - 2 + lendesc) {
2003                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2004                     /*field*/ 14, /*bit_valid*/ 0, /*bit*/ 0);
2005                 goto done;
2006         }
2007 /*
2008         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
2009             scsi_4btoul(cdb->list_identifier),
2010             data->flags, scsi_4btoul(data->inactivity_timeout),
2011             scsi_4btoul(data->rod_type),
2012             scsi_2btoul(data->range_descriptor_length));
2013 */
2014
2015         /* Validate INACTIVITY TIMEOUT field */
2016         if (scsi_4btoul(data->inactivity_timeout) > TPC_MAX_TOKEN_TIMEOUT) {
2017                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2018                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
2019                     /*bit*/ 0);
2020                 goto done;
2021         }
2022
2023         /* Validate ROD TYPE field */
2024         if ((data->flags & EC_PT_RTV) &&
2025             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
2026                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2027                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
2028                 goto done;
2029         }
2030
2031         /* Validate list of ranges */
2032         if (tpc_check_ranges_l(&data->desc[0],
2033             scsi_2btoul(data->range_descriptor_length) /
2034             sizeof(struct scsi_range_desc),
2035             lun->be_lun->maxlba) != 0) {
2036                 ctl_set_lba_out_of_range(ctsio);
2037                 goto done;
2038         }
2039         if (tpc_check_ranges_x(&data->desc[0],
2040             scsi_2btoul(data->range_descriptor_length) /
2041             sizeof(struct scsi_range_desc)) != 0) {
2042                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2043                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2044                     /*bit*/ 0);
2045                 goto done;
2046         }
2047
2048         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2049         list->service_action = cdb->service_action;
2050         list->init_port = ctsio->io_hdr.nexus.targ_port;
2051         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2052         list->list_id = scsi_4btoul(cdb->list_identifier);
2053         list->flags = data->flags;
2054         list->ctsio = ctsio;
2055         list->lun = lun;
2056         mtx_lock(&lun->lun_lock);
2057         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2058         if (tlist != NULL && !tlist->completed) {
2059                 mtx_unlock(&lun->lun_lock);
2060                 free(list, M_CTL);
2061                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2062                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2063                     /*bit*/ 0);
2064                 goto done;
2065         }
2066         if (tlist != NULL) {
2067                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2068                 free(tlist, M_CTL);
2069         }
2070         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2071         mtx_unlock(&lun->lun_lock);
2072
2073         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
2074         token->lun = lun->lun;
2075         token->blocksize = lun->be_lun->blocksize;
2076         token->params = ctsio->kern_data_ptr;
2077         token->range = &data->desc[0];
2078         token->nrange = scsi_2btoul(data->range_descriptor_length) /
2079             sizeof(struct scsi_range_desc);
2080         list->cursectors = tpc_ranges_length(token->range, token->nrange);
2081         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
2082         tpc_create_token(lun, port, list->curbytes,
2083             (struct scsi_token *)token->token);
2084         token->active = 0;
2085         token->last_active = time_uptime;
2086         token->timeout = scsi_4btoul(data->inactivity_timeout);
2087         if (token->timeout == 0)
2088                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
2089         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
2090                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
2091         memcpy(list->res_token, token->token, sizeof(list->res_token));
2092         list->res_token_valid = 1;
2093         list->curseg = 0;
2094         list->completed = 1;
2095         list->last_active = time_uptime;
2096         mtx_lock(&softc->tpc_lock);
2097         TAILQ_INSERT_TAIL(&softc->tpc_tokens, token, links);
2098         mtx_unlock(&softc->tpc_lock);
2099         ctl_set_success(ctsio);
2100         ctl_done((union ctl_io *)ctsio);
2101         return (CTL_RETVAL_COMPLETE);
2102
2103 done:
2104         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2105                 free(ctsio->kern_data_ptr, M_CTL);
2106                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2107         }
2108         ctl_done((union ctl_io *)ctsio);
2109         return (CTL_RETVAL_COMPLETE);
2110 }
2111
2112 int
2113 ctl_write_using_token(struct ctl_scsiio *ctsio)
2114 {
2115         struct scsi_write_using_token *cdb;
2116         struct scsi_write_using_token_data *data;
2117         struct ctl_softc *softc;
2118         struct ctl_lun *lun;
2119         struct tpc_list *list, *tlist;
2120         struct tpc_token *token;
2121         int len, lendata, lendesc;
2122
2123         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
2124
2125         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2126         softc = lun->ctl_softc;
2127         cdb = (struct scsi_write_using_token *)ctsio->cdb;
2128         len = scsi_4btoul(cdb->length);
2129
2130         if (len < sizeof(struct scsi_write_using_token_data) ||
2131             len > sizeof(struct scsi_write_using_token_data) +
2132              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
2133                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
2134                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
2135                 goto done;
2136         }
2137
2138         /*
2139          * If we've got a kernel request that hasn't been malloced yet,
2140          * malloc it and tell the caller the data buffer is here.
2141          */
2142         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
2143                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
2144                 ctsio->kern_data_len = len;
2145                 ctsio->kern_total_len = len;
2146                 ctsio->kern_data_resid = 0;
2147                 ctsio->kern_rel_offset = 0;
2148                 ctsio->kern_sg_entries = 0;
2149                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2150                 ctsio->be_move_done = ctl_config_move_done;
2151                 ctl_datamove((union ctl_io *)ctsio);
2152
2153                 return (CTL_RETVAL_COMPLETE);
2154         }
2155
2156         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
2157         lendata = scsi_2btoul(data->length);
2158         if (lendata < sizeof(struct scsi_write_using_token_data) - 2 +
2159             sizeof(struct scsi_range_desc)) {
2160                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2161                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
2162                 goto done;
2163         }
2164         lendesc = scsi_2btoul(data->range_descriptor_length);
2165         if (lendesc < sizeof(struct scsi_range_desc) ||
2166             len < sizeof(struct scsi_write_using_token_data) + lendesc ||
2167             lendata < sizeof(struct scsi_write_using_token_data) - 2 + lendesc) {
2168                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2169                     /*field*/ 534, /*bit_valid*/ 0, /*bit*/ 0);
2170                 goto done;
2171         }
2172 /*
2173         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2174             scsi_4btoul(cdb->list_identifier),
2175             data->flags, scsi_8btou64(data->offset_into_rod),
2176             scsi_2btoul(data->range_descriptor_length));
2177 */
2178
2179         /* Validate list of ranges */
2180         if (tpc_check_ranges_l(&data->desc[0],
2181             scsi_2btoul(data->range_descriptor_length) /
2182             sizeof(struct scsi_range_desc),
2183             lun->be_lun->maxlba) != 0) {
2184                 ctl_set_lba_out_of_range(ctsio);
2185                 goto done;
2186         }
2187         if (tpc_check_ranges_x(&data->desc[0],
2188             scsi_2btoul(data->range_descriptor_length) /
2189             sizeof(struct scsi_range_desc)) != 0) {
2190                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2191                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2192                     /*bit*/ 0);
2193                 goto done;
2194         }
2195
2196         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2197         list->service_action = cdb->service_action;
2198         list->init_port = ctsio->io_hdr.nexus.targ_port;
2199         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2200         list->list_id = scsi_4btoul(cdb->list_identifier);
2201         list->flags = data->flags;
2202         list->params = ctsio->kern_data_ptr;
2203         list->range = &data->desc[0];
2204         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2205             sizeof(struct scsi_range_desc);
2206         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2207         list->ctsio = ctsio;
2208         list->lun = lun;
2209         mtx_lock(&lun->lun_lock);
2210         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2211         if (tlist != NULL && !tlist->completed) {
2212                 mtx_unlock(&lun->lun_lock);
2213                 free(list, M_CTL);
2214                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2215                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2216                     /*bit*/ 0);
2217                 goto done;
2218         }
2219         if (tlist != NULL) {
2220                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2221                 free(tlist, M_CTL);
2222         }
2223         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2224         mtx_unlock(&lun->lun_lock);
2225
2226         /* Block device zero ROD token -> no token. */
2227         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2228                 tpc_process(list);
2229                 return (CTL_RETVAL_COMPLETE);
2230         }
2231
2232         mtx_lock(&softc->tpc_lock);
2233         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2234                 if (memcmp(token->token, data->rod_token,
2235                     sizeof(data->rod_token)) == 0)
2236                         break;
2237         }
2238         if (token != NULL) {
2239                 token->active++;
2240                 list->token = token;
2241                 if (data->flags & EC_WUT_DEL_TKN)
2242                         token->timeout = 0;
2243         }
2244         mtx_unlock(&softc->tpc_lock);
2245         if (token == NULL) {
2246                 mtx_lock(&lun->lun_lock);
2247                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2248                 mtx_unlock(&lun->lun_lock);
2249                 free(list, M_CTL);
2250                 ctl_set_sense(ctsio, /*current_error*/ 1,
2251                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2252                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2253                 goto done;
2254         }
2255
2256         tpc_process(list);
2257         return (CTL_RETVAL_COMPLETE);
2258
2259 done:
2260         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2261                 free(ctsio->kern_data_ptr, M_CTL);
2262                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2263         }
2264         ctl_done((union ctl_io *)ctsio);
2265         return (CTL_RETVAL_COMPLETE);
2266 }
2267
2268 int
2269 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2270 {
2271         struct ctl_lun *lun;
2272         struct scsi_receive_rod_token_information *cdb;
2273         struct scsi_receive_copy_status_lid4_data *data;
2274         struct tpc_list *list;
2275         struct tpc_list list_copy;
2276         uint8_t *ptr;
2277         int retval;
2278         int alloc_len, total_len, token_len;
2279         uint32_t list_id;
2280
2281         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2282
2283         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2284         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2285
2286         retval = CTL_RETVAL_COMPLETE;
2287
2288         list_id = scsi_4btoul(cdb->list_identifier);
2289         mtx_lock(&lun->lun_lock);
2290         list = tpc_find_list(lun, list_id,
2291             ctl_get_initindex(&ctsio->io_hdr.nexus));
2292         if (list == NULL) {
2293                 mtx_unlock(&lun->lun_lock);
2294                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2295                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2296                     /*bit*/ 0);
2297                 ctl_done((union ctl_io *)ctsio);
2298                 return (retval);
2299         }
2300         list_copy = *list;
2301         if (list->completed) {
2302                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2303                 free(list, M_CTL);
2304         }
2305         mtx_unlock(&lun->lun_lock);
2306
2307         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2308         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2309         alloc_len = scsi_4btoul(cdb->length);
2310
2311         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2312
2313         ctsio->kern_sg_entries = 0;
2314
2315         if (total_len < alloc_len) {
2316                 ctsio->residual = alloc_len - total_len;
2317                 ctsio->kern_data_len = total_len;
2318                 ctsio->kern_total_len = total_len;
2319         } else {
2320                 ctsio->residual = 0;
2321                 ctsio->kern_data_len = alloc_len;
2322                 ctsio->kern_total_len = alloc_len;
2323         }
2324         ctsio->kern_data_resid = 0;
2325         ctsio->kern_rel_offset = 0;
2326
2327         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2328         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2329             4 + token_len, data->available_data);
2330         data->response_to_service_action = list_copy.service_action;
2331         if (list_copy.completed) {
2332                 if (list_copy.error)
2333                         data->copy_command_status = RCS_CCS_ERROR;
2334                 else if (list_copy.abort)
2335                         data->copy_command_status = RCS_CCS_ABORTED;
2336                 else
2337                         data->copy_command_status = RCS_CCS_COMPLETED;
2338         } else
2339                 data->copy_command_status = RCS_CCS_INPROG_FG;
2340         scsi_ulto2b(list_copy.curops, data->operation_counter);
2341         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2342         data->transfer_count_units = RCS_TC_LBAS;
2343         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2344         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2345         data->length_of_the_sense_data_field = list_copy.sense_len;
2346         data->sense_data_length = list_copy.sense_len;
2347         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2348
2349         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2350         scsi_ulto4b(token_len, &ptr[0]);
2351         if (list_copy.res_token_valid) {
2352                 scsi_ulto2b(0, &ptr[4]);
2353                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2354         }
2355 /*
2356         printf("RRTI(list=%u) valid=%d\n",
2357             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2358 */
2359         ctl_set_success(ctsio);
2360         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2361         ctsio->be_move_done = ctl_config_move_done;
2362         ctl_datamove((union ctl_io *)ctsio);
2363         return (retval);
2364 }
2365
2366 int
2367 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2368 {
2369         struct ctl_softc *softc;
2370         struct ctl_lun *lun;
2371         struct scsi_report_all_rod_tokens *cdb;
2372         struct scsi_report_all_rod_tokens_data *data;
2373         struct tpc_token *token;
2374         int retval;
2375         int alloc_len, total_len, tokens, i;
2376
2377         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2378
2379         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2380         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2381         softc = lun->ctl_softc;
2382
2383         retval = CTL_RETVAL_COMPLETE;
2384
2385         tokens = 0;
2386         mtx_lock(&softc->tpc_lock);
2387         TAILQ_FOREACH(token, &softc->tpc_tokens, links)
2388                 tokens++;
2389         mtx_unlock(&softc->tpc_lock);
2390         if (tokens > 512)
2391                 tokens = 512;
2392
2393         total_len = sizeof(*data) + tokens * 96;
2394         alloc_len = scsi_4btoul(cdb->length);
2395
2396         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2397
2398         ctsio->kern_sg_entries = 0;
2399
2400         if (total_len < alloc_len) {
2401                 ctsio->residual = alloc_len - total_len;
2402                 ctsio->kern_data_len = total_len;
2403                 ctsio->kern_total_len = total_len;
2404         } else {
2405                 ctsio->residual = 0;
2406                 ctsio->kern_data_len = alloc_len;
2407                 ctsio->kern_total_len = alloc_len;
2408         }
2409         ctsio->kern_data_resid = 0;
2410         ctsio->kern_rel_offset = 0;
2411
2412         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2413         i = 0;
2414         mtx_lock(&softc->tpc_lock);
2415         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2416                 if (i >= tokens)
2417                         break;
2418                 memcpy(&data->rod_management_token_list[i * 96],
2419                     token->token, 96);
2420                 i++;
2421         }
2422         mtx_unlock(&softc->tpc_lock);
2423         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2424 /*
2425         printf("RART tokens=%d\n", i);
2426 */
2427         ctl_set_success(ctsio);
2428         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2429         ctsio->be_move_done = ctl_config_move_done;
2430         ctl_datamove((union ctl_io *)ctsio);
2431         return (retval);
2432 }
2433