sys/cam/ctl/ctl_tpc.c

   1 /*-
   2  * Copyright (c) 2014 Alexander Motin <mav@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.h>
  33 #include <sys/types.h>
  34 #include <sys/lock.h>
  35 #include <sys/module.h>
  36 #include <sys/mutex.h>
  37 #include <sys/condvar.h>
  38 #include <sys/malloc.h>
  39 #include <sys/conf.h>
  40 #include <sys/queue.h>
  41 #include <sys/sysctl.h>
  42 #include <machine/atomic.h>
  43
  44 #include <cam/cam.h>
  45 #include <cam/scsi/scsi_all.h>
  46 #include <cam/scsi/scsi_da.h>
  47 #include <cam/ctl/ctl_io.h>
  48 #include <cam/ctl/ctl.h>
  49 #include <cam/ctl/ctl_frontend.h>
  50 #include <cam/ctl/ctl_util.h>
  51 #include <cam/ctl/ctl_backend.h>
  52 #include <cam/ctl/ctl_ioctl.h>
  53 #include <cam/ctl/ctl_ha.h>
  54 #include <cam/ctl/ctl_private.h>
  55 #include <cam/ctl/ctl_debug.h>
  56 #include <cam/ctl/ctl_scsi_all.h>
  57 #include <cam/ctl/ctl_tpc.h>
  58 #include <cam/ctl/ctl_error.h>
  59
  60 #define TPC_MAX_CSCDS   64
  61 #define TPC_MAX_SEGS    64
  62 #define TPC_MAX_SEG     0
  63 #define TPC_MAX_LIST    8192
  64 #define TPC_MAX_INLINE  0
  65 #define TPC_MAX_LISTS   255
  66 #define TPC_MAX_IO_SIZE (1024 * 1024)
  67 #define TPC_MAX_IOCHUNK_SIZE    (TPC_MAX_IO_SIZE * 16)
  68 #define TPC_MIN_TOKEN_TIMEOUT   1
  69 #define TPC_DFL_TOKEN_TIMEOUT   60
  70 #define TPC_MAX_TOKEN_TIMEOUT   600
  71
  72 MALLOC_DEFINE(M_CTL_TPC, "ctltpc", "CTL TPC");
  73
  74 typedef enum {
  75         TPC_ERR_RETRY           = 0x000,
  76         TPC_ERR_FAIL            = 0x001,
  77         TPC_ERR_MASK            = 0x0ff,
  78         TPC_ERR_NO_DECREMENT    = 0x100
  79 } tpc_error_action;
  80
  81 struct tpc_list;
  82 TAILQ_HEAD(runl, tpc_io);
  83 struct tpc_io {
  84         union ctl_io            *io;
  85         uint64_t                 lun;
  86         struct tpc_list         *list;
  87         struct runl              run;
  88         TAILQ_ENTRY(tpc_io)      rlinks;
  89         TAILQ_ENTRY(tpc_io)      links;
  90 };
  91
  92 struct tpc_token {
  93         uint8_t                  token[512];
  94         uint64_t                 lun;
  95         uint32_t                 blocksize;
  96         uint8_t                 *params;
  97         struct scsi_range_desc  *range;
  98         int                      nrange;
  99         int                      active;
 100         time_t                   last_active;
 101         uint32_t                 timeout;
 102         TAILQ_ENTRY(tpc_token)   links;
 103 };
 104
 105 struct tpc_list {
 106         uint8_t                  service_action;
 107         int                      init_port;
 108         uint32_t                 init_idx;
 109         uint32_t                 list_id;
 110         uint8_t                  flags;
 111         uint8_t                 *params;
 112         struct scsi_ec_cscd     *cscd;
 113         struct scsi_ec_segment  *seg[TPC_MAX_SEGS];
 114         uint8_t                 *inl;
 115         int                      ncscd;
 116         int                      nseg;
 117         int                      leninl;
 118         struct tpc_token        *token;
 119         struct scsi_range_desc  *range;
 120         int                      nrange;
 121         off_t                    offset_into_rod;
 122
 123         int                      curseg;
 124         off_t                    cursectors;
 125         off_t                    curbytes;
 126         int                      curops;
 127         int                      stage;
 128         uint8_t                 *buf;
 129         off_t                    segsectors;
 130         off_t                    segbytes;
 131         int                      tbdio;
 132         int                      error;
 133         int                      abort;
 134         int                      completed;
 135         time_t                   last_active;
 136         TAILQ_HEAD(, tpc_io)     allio;
 137         struct scsi_sense_data   sense_data;
 138         uint8_t                  sense_len;
 139         uint8_t                  scsi_status;
 140         struct ctl_scsiio       *ctsio;
 141         struct ctl_lun          *lun;
 142         int                      res_token_valid;
 143         uint8_t                  res_token[512];
 144         TAILQ_ENTRY(tpc_list)    links;
 145 };
 146
 147 static void
 148 tpc_timeout(void *arg)
 149 {
 150         struct ctl_softc *softc = arg;
 151         struct ctl_lun *lun;
 152         struct tpc_token *token, *ttoken;
 153         struct tpc_list *list, *tlist;
 154
 155         /* Free completed lists with expired timeout. */
 156         STAILQ_FOREACH(lun, &softc->lun_list, links) {
 157                 mtx_lock(&lun->lun_lock);
 158                 TAILQ_FOREACH_SAFE(list, &lun->tpc_lists, links, tlist) {
 159                         if (!list->completed || time_uptime < list->last_active +
 160                             TPC_DFL_TOKEN_TIMEOUT)
 161                                 continue;
 162                         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 163                         free(list, M_CTL);
 164                 }
 165                 mtx_unlock(&lun->lun_lock);
 166         }
 167
 168         /* Free inactive ROD tokens with expired timeout. */
 169         mtx_lock(&softc->tpc_lock);
 170         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
 171                 if (token->active ||
 172                     time_uptime < token->last_active + token->timeout + 1)
 173                         continue;
 174                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 175                 free(token->params, M_CTL);
 176                 free(token, M_CTL);
 177         }
 178         mtx_unlock(&softc->tpc_lock);
 179         callout_schedule(&softc->tpc_timeout, hz);
 180 }
 181
 182 void
 183 ctl_tpc_init(struct ctl_softc *softc)
 184 {
 185
 186         mtx_init(&softc->tpc_lock, "CTL TPC mutex", NULL, MTX_DEF);
 187         TAILQ_INIT(&softc->tpc_tokens);
 188         callout_init_mtx(&softc->tpc_timeout, &softc->ctl_lock, 0);
 189         callout_reset(&softc->tpc_timeout, hz, tpc_timeout, softc);
 190 }
 191
 192 void
 193 ctl_tpc_shutdown(struct ctl_softc *softc)
 194 {
 195         struct tpc_token *token;
 196
 197         callout_drain(&softc->tpc_timeout);
 198
 199         /* Free ROD tokens. */
 200         mtx_lock(&softc->tpc_lock);
 201         while ((token = TAILQ_FIRST(&softc->tpc_tokens)) != NULL) {
 202                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 203                 free(token->params, M_CTL);
 204                 free(token, M_CTL);
 205         }
 206         mtx_unlock(&softc->tpc_lock);
 207         mtx_destroy(&softc->tpc_lock);
 208 }
 209
 210 void
 211 ctl_tpc_lun_init(struct ctl_lun *lun)
 212 {
 213
 214         TAILQ_INIT(&lun->tpc_lists);
 215 }
 216
 217 void
 218 ctl_tpc_lun_shutdown(struct ctl_lun *lun)
 219 {
 220         struct ctl_softc *softc = lun->ctl_softc;
 221         struct tpc_list *list;
 222         struct tpc_token *token, *ttoken;
 223
 224         /* Free lists for this LUN. */
 225         while ((list = TAILQ_FIRST(&lun->tpc_lists)) != NULL) {
 226                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 227                 KASSERT(list->completed,
 228                     ("Not completed TPC (%p) on shutdown", list));
 229                 free(list, M_CTL);
 230         }
 231
 232         /* Free ROD tokens for this LUN. */
 233         mtx_lock(&softc->tpc_lock);
 234         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
 235                 if (token->lun != lun->lun || token->active)
 236                         continue;
 237                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
 238                 free(token->params, M_CTL);
 239                 free(token, M_CTL);
 240         }
 241         mtx_unlock(&softc->tpc_lock);
 242 }
 243
 244 int
 245 ctl_inquiry_evpd_tpc(struct ctl_scsiio *ctsio, int alloc_len)
 246 {
 247         struct scsi_vpd_tpc *tpc_ptr;
 248         struct scsi_vpd_tpc_descriptor *d_ptr;
 249         struct scsi_vpd_tpc_descriptor_bdrl *bdrl_ptr;
 250         struct scsi_vpd_tpc_descriptor_sc *sc_ptr;
 251         struct scsi_vpd_tpc_descriptor_sc_descr *scd_ptr;
 252         struct scsi_vpd_tpc_descriptor_pd *pd_ptr;
 253         struct scsi_vpd_tpc_descriptor_sd *sd_ptr;
 254         struct scsi_vpd_tpc_descriptor_sdid *sdid_ptr;
 255         struct scsi_vpd_tpc_descriptor_rtf *rtf_ptr;
 256         struct scsi_vpd_tpc_descriptor_rtf_block *rtfb_ptr;
 257         struct scsi_vpd_tpc_descriptor_srt *srt_ptr;
 258         struct scsi_vpd_tpc_descriptor_srtd *srtd_ptr;
 259         struct scsi_vpd_tpc_descriptor_gco *gco_ptr;
 260         struct ctl_lun *lun;
 261         int data_len;
 262
 263         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 264
 265         data_len = sizeof(struct scsi_vpd_tpc) +
 266             sizeof(struct scsi_vpd_tpc_descriptor_bdrl) +
 267             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sc) +
 268              2 * sizeof(struct scsi_vpd_tpc_descriptor_sc_descr) + 11, 4) +
 269             sizeof(struct scsi_vpd_tpc_descriptor_pd) +
 270             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sd) + 4, 4) +
 271             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sdid) + 2, 4) +
 272             sizeof(struct scsi_vpd_tpc_descriptor_rtf) +
 273              sizeof(struct scsi_vpd_tpc_descriptor_rtf_block) +
 274             sizeof(struct scsi_vpd_tpc_descriptor_srt) +
 275              2*sizeof(struct scsi_vpd_tpc_descriptor_srtd) +
 276             sizeof(struct scsi_vpd_tpc_descriptor_gco);
 277
 278         ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
 279         tpc_ptr = (struct scsi_vpd_tpc *)ctsio->kern_data_ptr;
 280         ctsio->kern_sg_entries = 0;
 281
 282         if (data_len < alloc_len) {
 283                 ctsio->residual = alloc_len - data_len;
 284                 ctsio->kern_data_len = data_len;
 285                 ctsio->kern_total_len = data_len;
 286         } else {
 287                 ctsio->residual = 0;
 288                 ctsio->kern_data_len = alloc_len;
 289                 ctsio->kern_total_len = alloc_len;
 290         }
 291         ctsio->kern_data_resid = 0;
 292         ctsio->kern_rel_offset = 0;
 293         ctsio->kern_sg_entries = 0;
 294
 295         /*
 296          * The control device is always connected.  The disk device, on the
 297          * other hand, may not be online all the time.
 298          */
 299         if (lun != NULL)
 300                 tpc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
 301                                      lun->be_lun->lun_type;
 302         else
 303                 tpc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
 304         tpc_ptr->page_code = SVPD_SCSI_TPC;
 305         scsi_ulto2b(data_len - 4, tpc_ptr->page_length);
 306
 307         /* Block Device ROD Limits */
 308         d_ptr = (struct scsi_vpd_tpc_descriptor *)&tpc_ptr->descr[0];
 309         bdrl_ptr = (struct scsi_vpd_tpc_descriptor_bdrl *)d_ptr;
 310         scsi_ulto2b(SVPD_TPC_BDRL, bdrl_ptr->desc_type);
 311         scsi_ulto2b(sizeof(*bdrl_ptr) - 4, bdrl_ptr->desc_length);
 312         scsi_ulto2b(TPC_MAX_SEGS, bdrl_ptr->maximum_ranges);
 313         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 314             bdrl_ptr->maximum_inactivity_timeout);
 315         scsi_ulto4b(TPC_DFL_TOKEN_TIMEOUT,
 316             bdrl_ptr->default_inactivity_timeout);
 317         scsi_u64to8b(0, bdrl_ptr->maximum_token_transfer_size);
 318         scsi_u64to8b(0, bdrl_ptr->optimal_transfer_count);
 319
 320         /* Supported commands */
 321         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 322             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 323         sc_ptr = (struct scsi_vpd_tpc_descriptor_sc *)d_ptr;
 324         scsi_ulto2b(SVPD_TPC_SC, sc_ptr->desc_type);
 325         sc_ptr->list_length = 2 * sizeof(*scd_ptr) + 11;
 326         scsi_ulto2b(roundup2(1 + sc_ptr->list_length, 4), sc_ptr->desc_length);
 327         scd_ptr = &sc_ptr->descr[0];
 328         scd_ptr->opcode = EXTENDED_COPY;
 329         scd_ptr->sa_length = 5;
 330         scd_ptr->supported_service_actions[0] = EC_EC_LID1;
 331         scd_ptr->supported_service_actions[1] = EC_EC_LID4;
 332         scd_ptr->supported_service_actions[2] = EC_PT;
 333         scd_ptr->supported_service_actions[3] = EC_WUT;
 334         scd_ptr->supported_service_actions[4] = EC_COA;
 335         scd_ptr = (struct scsi_vpd_tpc_descriptor_sc_descr *)
 336             &scd_ptr->supported_service_actions[scd_ptr->sa_length];
 337         scd_ptr->opcode = RECEIVE_COPY_STATUS;
 338         scd_ptr->sa_length = 6;
 339         scd_ptr->supported_service_actions[0] = RCS_RCS_LID1;
 340         scd_ptr->supported_service_actions[1] = RCS_RCFD;
 341         scd_ptr->supported_service_actions[2] = RCS_RCS_LID4;
 342         scd_ptr->supported_service_actions[3] = RCS_RCOP;
 343         scd_ptr->supported_service_actions[4] = RCS_RRTI;
 344         scd_ptr->supported_service_actions[5] = RCS_RART;
 345
 346         /* Parameter data. */
 347         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 348             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 349         pd_ptr = (struct scsi_vpd_tpc_descriptor_pd *)d_ptr;
 350         scsi_ulto2b(SVPD_TPC_PD, pd_ptr->desc_type);
 351         scsi_ulto2b(sizeof(*pd_ptr) - 4, pd_ptr->desc_length);
 352         scsi_ulto2b(TPC_MAX_CSCDS, pd_ptr->maximum_cscd_descriptor_count);
 353         scsi_ulto2b(TPC_MAX_SEGS, pd_ptr->maximum_segment_descriptor_count);
 354         scsi_ulto4b(TPC_MAX_LIST, pd_ptr->maximum_descriptor_list_length);
 355         scsi_ulto4b(TPC_MAX_INLINE, pd_ptr->maximum_inline_data_length);
 356
 357         /* Supported Descriptors */
 358         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 359             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 360         sd_ptr = (struct scsi_vpd_tpc_descriptor_sd *)d_ptr;
 361         scsi_ulto2b(SVPD_TPC_SD, sd_ptr->desc_type);
 362         scsi_ulto2b(roundup2(sizeof(*sd_ptr) - 4 + 4, 4), sd_ptr->desc_length);
 363         sd_ptr->list_length = 4;
 364         sd_ptr->supported_descriptor_codes[0] = EC_SEG_B2B;
 365         sd_ptr->supported_descriptor_codes[1] = EC_SEG_VERIFY;
 366         sd_ptr->supported_descriptor_codes[2] = EC_SEG_REGISTER_KEY;
 367         sd_ptr->supported_descriptor_codes[3] = EC_CSCD_ID;
 368
 369         /* Supported CSCD Descriptor IDs */
 370         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 371             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 372         sdid_ptr = (struct scsi_vpd_tpc_descriptor_sdid *)d_ptr;
 373         scsi_ulto2b(SVPD_TPC_SDID, sdid_ptr->desc_type);
 374         scsi_ulto2b(roundup2(sizeof(*sdid_ptr) - 4 + 2, 4), sdid_ptr->desc_length);
 375         scsi_ulto2b(2, sdid_ptr->list_length);
 376         scsi_ulto2b(0xffff, &sdid_ptr->supported_descriptor_ids[0]);
 377
 378         /* ROD Token Features */
 379         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 380             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 381         rtf_ptr = (struct scsi_vpd_tpc_descriptor_rtf *)d_ptr;
 382         scsi_ulto2b(SVPD_TPC_RTF, rtf_ptr->desc_type);
 383         scsi_ulto2b(sizeof(*rtf_ptr) - 4 + sizeof(*rtfb_ptr), rtf_ptr->desc_length);
 384         rtf_ptr->remote_tokens = 0;
 385         scsi_ulto4b(TPC_MIN_TOKEN_TIMEOUT, rtf_ptr->minimum_token_lifetime);
 386         scsi_ulto4b(UINT32_MAX, rtf_ptr->maximum_token_lifetime);
 387         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
 388             rtf_ptr->maximum_token_inactivity_timeout);
 389         scsi_ulto2b(sizeof(*rtfb_ptr), rtf_ptr->type_specific_features_length);
 390         rtfb_ptr = (struct scsi_vpd_tpc_descriptor_rtf_block *)
 391             &rtf_ptr->type_specific_features;
 392         rtfb_ptr->type_format = SVPD_TPC_RTF_BLOCK;
 393         scsi_ulto2b(sizeof(*rtfb_ptr) - 4, rtfb_ptr->desc_length);
 394         scsi_ulto2b(0, rtfb_ptr->optimal_length_granularity);
 395         scsi_u64to8b(0, rtfb_ptr->maximum_bytes);
 396         scsi_u64to8b(0, rtfb_ptr->optimal_bytes);
 397         scsi_u64to8b(UINT64_MAX, rtfb_ptr->optimal_bytes_to_token_per_segment);
 398         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
 399             rtfb_ptr->optimal_bytes_from_token_per_segment);
 400
 401         /* Supported ROD Tokens */
 402         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 403             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 404         srt_ptr = (struct scsi_vpd_tpc_descriptor_srt *)d_ptr;
 405         scsi_ulto2b(SVPD_TPC_SRT, srt_ptr->desc_type);
 406         scsi_ulto2b(sizeof(*srt_ptr) - 4 + 2*sizeof(*srtd_ptr), srt_ptr->desc_length);
 407         scsi_ulto2b(2*sizeof(*srtd_ptr), srt_ptr->rod_type_descriptors_length);
 408         srtd_ptr = (struct scsi_vpd_tpc_descriptor_srtd *)
 409             &srt_ptr->rod_type_descriptors;
 410         scsi_ulto4b(ROD_TYPE_AUR, srtd_ptr->rod_type);
 411         srtd_ptr->flags = SVPD_TPC_SRTD_TIN | SVPD_TPC_SRTD_TOUT;
 412         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 413         srtd_ptr++;
 414         scsi_ulto4b(ROD_TYPE_BLOCK_ZERO, srtd_ptr->rod_type);
 415         srtd_ptr->flags = SVPD_TPC_SRTD_TIN;
 416         scsi_ulto2b(0, srtd_ptr->preference_indicator);
 417
 418         /* General Copy Operations */
 419         d_ptr = (struct scsi_vpd_tpc_descriptor *)
 420             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
 421         gco_ptr = (struct scsi_vpd_tpc_descriptor_gco *)d_ptr;
 422         scsi_ulto2b(SVPD_TPC_GCO, gco_ptr->desc_type);
 423         scsi_ulto2b(sizeof(*gco_ptr) - 4, gco_ptr->desc_length);
 424         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->total_concurrent_copies);
 425         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->maximum_identified_concurrent_copies);
 426         scsi_ulto4b(TPC_MAX_SEG, gco_ptr->maximum_segment_length);
 427         gco_ptr->data_segment_granularity = 0;
 428         gco_ptr->inline_data_granularity = 0;
 429
 430         ctl_set_success(ctsio);
 431         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 432         ctsio->be_move_done = ctl_config_move_done;
 433         ctl_datamove((union ctl_io *)ctsio);
 434
 435         return (CTL_RETVAL_COMPLETE);
 436 }
 437
 438 int
 439 ctl_receive_copy_operating_parameters(struct ctl_scsiio *ctsio)
 440 {
 441         struct scsi_receive_copy_operating_parameters *cdb;
 442         struct scsi_receive_copy_operating_parameters_data *data;
 443         int retval;
 444         int alloc_len, total_len;
 445
 446         CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n"));
 447
 448         cdb = (struct scsi_receive_copy_operating_parameters *)ctsio->cdb;
 449
 450         retval = CTL_RETVAL_COMPLETE;
 451
 452         total_len = sizeof(*data) + 4;
 453         alloc_len = scsi_4btoul(cdb->length);
 454
 455         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 456
 457         ctsio->kern_sg_entries = 0;
 458
 459         if (total_len < alloc_len) {
 460                 ctsio->residual = alloc_len - total_len;
 461                 ctsio->kern_data_len = total_len;
 462                 ctsio->kern_total_len = total_len;
 463         } else {
 464                 ctsio->residual = 0;
 465                 ctsio->kern_data_len = alloc_len;
 466                 ctsio->kern_total_len = alloc_len;
 467         }
 468         ctsio->kern_data_resid = 0;
 469         ctsio->kern_rel_offset = 0;
 470
 471         data = (struct scsi_receive_copy_operating_parameters_data *)ctsio->kern_data_ptr;
 472         scsi_ulto4b(sizeof(*data) - 4 + 4, data->length);
 473         data->snlid = RCOP_SNLID;
 474         scsi_ulto2b(TPC_MAX_CSCDS, data->maximum_cscd_descriptor_count);
 475         scsi_ulto2b(TPC_MAX_SEGS, data->maximum_segment_descriptor_count);
 476         scsi_ulto4b(TPC_MAX_LIST, data->maximum_descriptor_list_length);
 477         scsi_ulto4b(TPC_MAX_SEG, data->maximum_segment_length);
 478         scsi_ulto4b(TPC_MAX_INLINE, data->maximum_inline_data_length);
 479         scsi_ulto4b(0, data->held_data_limit);
 480         scsi_ulto4b(0, data->maximum_stream_device_transfer_size);
 481         scsi_ulto2b(TPC_MAX_LISTS, data->total_concurrent_copies);
 482         data->maximum_concurrent_copies = TPC_MAX_LISTS;
 483         data->data_segment_granularity = 0;
 484         data->inline_data_granularity = 0;
 485         data->held_data_granularity = 0;
 486         data->implemented_descriptor_list_length = 4;
 487         data->list_of_implemented_descriptor_type_codes[0] = EC_SEG_B2B;
 488         data->list_of_implemented_descriptor_type_codes[1] = EC_SEG_VERIFY;
 489         data->list_of_implemented_descriptor_type_codes[2] = EC_SEG_REGISTER_KEY;
 490         data->list_of_implemented_descriptor_type_codes[3] = EC_CSCD_ID;
 491
 492         ctl_set_success(ctsio);
 493         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 494         ctsio->be_move_done = ctl_config_move_done;
 495         ctl_datamove((union ctl_io *)ctsio);
 496         return (retval);
 497 }
 498
 499 static struct tpc_list *
 500 tpc_find_list(struct ctl_lun *lun, uint32_t list_id, uint32_t init_idx)
 501 {
 502         struct tpc_list *list;
 503
 504         mtx_assert(&lun->lun_lock, MA_OWNED);
 505         TAILQ_FOREACH(list, &lun->tpc_lists, links) {
 506                 if ((list->flags & EC_LIST_ID_USAGE_MASK) !=
 507                      EC_LIST_ID_USAGE_NONE && list->list_id == list_id &&
 508                     list->init_idx == init_idx)
 509                         break;
 510         }
 511         return (list);
 512 }
 513
 514 int
 515 ctl_receive_copy_status_lid1(struct ctl_scsiio *ctsio)
 516 {
 517         struct ctl_lun *lun;
 518         struct scsi_receive_copy_status_lid1 *cdb;
 519         struct scsi_receive_copy_status_lid1_data *data;
 520         struct tpc_list *list;
 521         struct tpc_list list_copy;
 522         int retval;
 523         int alloc_len, total_len;
 524         uint32_t list_id;
 525
 526         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid1\n"));
 527
 528         cdb = (struct scsi_receive_copy_status_lid1 *)ctsio->cdb;
 529         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 530
 531         retval = CTL_RETVAL_COMPLETE;
 532
 533         list_id = cdb->list_identifier;
 534         mtx_lock(&lun->lun_lock);
 535         list = tpc_find_list(lun, list_id,
 536             ctl_get_initindex(&ctsio->io_hdr.nexus));
 537         if (list == NULL) {
 538                 mtx_unlock(&lun->lun_lock);
 539                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 540                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 541                     /*bit*/ 0);
 542                 ctl_done((union ctl_io *)ctsio);
 543                 return (retval);
 544         }
 545         list_copy = *list;
 546         if (list->completed) {
 547                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 548                 free(list, M_CTL);
 549         }
 550         mtx_unlock(&lun->lun_lock);
 551
 552         total_len = sizeof(*data);
 553         alloc_len = scsi_4btoul(cdb->length);
 554
 555         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 556
 557         ctsio->kern_sg_entries = 0;
 558
 559         if (total_len < alloc_len) {
 560                 ctsio->residual = alloc_len - total_len;
 561                 ctsio->kern_data_len = total_len;
 562                 ctsio->kern_total_len = total_len;
 563         } else {
 564                 ctsio->residual = 0;
 565                 ctsio->kern_data_len = alloc_len;
 566                 ctsio->kern_total_len = alloc_len;
 567         }
 568         ctsio->kern_data_resid = 0;
 569         ctsio->kern_rel_offset = 0;
 570
 571         data = (struct scsi_receive_copy_status_lid1_data *)ctsio->kern_data_ptr;
 572         scsi_ulto4b(sizeof(*data) - 4, data->available_data);
 573         if (list_copy.completed) {
 574                 if (list_copy.error || list_copy.abort)
 575                         data->copy_command_status = RCS_CCS_ERROR;
 576                 else
 577                         data->copy_command_status = RCS_CCS_COMPLETED;
 578         } else
 579                 data->copy_command_status = RCS_CCS_INPROG;
 580         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 581         if (list_copy.curbytes <= UINT32_MAX) {
 582                 data->transfer_count_units = RCS_TC_BYTES;
 583                 scsi_ulto4b(list_copy.curbytes, data->transfer_count);
 584         } else {
 585                 data->transfer_count_units = RCS_TC_MBYTES;
 586                 scsi_ulto4b(list_copy.curbytes >> 20, data->transfer_count);
 587         }
 588
 589         ctl_set_success(ctsio);
 590         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 591         ctsio->be_move_done = ctl_config_move_done;
 592         ctl_datamove((union ctl_io *)ctsio);
 593         return (retval);
 594 }
 595
 596 int
 597 ctl_receive_copy_failure_details(struct ctl_scsiio *ctsio)
 598 {
 599         struct ctl_lun *lun;
 600         struct scsi_receive_copy_failure_details *cdb;
 601         struct scsi_receive_copy_failure_details_data *data;
 602         struct tpc_list *list;
 603         struct tpc_list list_copy;
 604         int retval;
 605         int alloc_len, total_len;
 606         uint32_t list_id;
 607
 608         CTL_DEBUG_PRINT(("ctl_receive_copy_failure_details\n"));
 609
 610         cdb = (struct scsi_receive_copy_failure_details *)ctsio->cdb;
 611         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 612
 613         retval = CTL_RETVAL_COMPLETE;
 614
 615         list_id = cdb->list_identifier;
 616         mtx_lock(&lun->lun_lock);
 617         list = tpc_find_list(lun, list_id,
 618             ctl_get_initindex(&ctsio->io_hdr.nexus));
 619         if (list == NULL || !list->completed) {
 620                 mtx_unlock(&lun->lun_lock);
 621                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 622                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 623                     /*bit*/ 0);
 624                 ctl_done((union ctl_io *)ctsio);
 625                 return (retval);
 626         }
 627         list_copy = *list;
 628         TAILQ_REMOVE(&lun->tpc_lists, list, links);
 629         free(list, M_CTL);
 630         mtx_unlock(&lun->lun_lock);
 631
 632         total_len = sizeof(*data) + list_copy.sense_len;
 633         alloc_len = scsi_4btoul(cdb->length);
 634
 635         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 636
 637         ctsio->kern_sg_entries = 0;
 638
 639         if (total_len < alloc_len) {
 640                 ctsio->residual = alloc_len - total_len;
 641                 ctsio->kern_data_len = total_len;
 642                 ctsio->kern_total_len = total_len;
 643         } else {
 644                 ctsio->residual = 0;
 645                 ctsio->kern_data_len = alloc_len;
 646                 ctsio->kern_total_len = alloc_len;
 647         }
 648         ctsio->kern_data_resid = 0;
 649         ctsio->kern_rel_offset = 0;
 650
 651         data = (struct scsi_receive_copy_failure_details_data *)ctsio->kern_data_ptr;
 652         if (list_copy.completed && (list_copy.error || list_copy.abort)) {
 653                 scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 654                     data->available_data);
 655                 data->copy_command_status = RCS_CCS_ERROR;
 656         } else
 657                 scsi_ulto4b(0, data->available_data);
 658         scsi_ulto2b(list_copy.sense_len, data->sense_data_length);
 659         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 660
 661         ctl_set_success(ctsio);
 662         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 663         ctsio->be_move_done = ctl_config_move_done;
 664         ctl_datamove((union ctl_io *)ctsio);
 665         return (retval);
 666 }
 667
 668 int
 669 ctl_receive_copy_status_lid4(struct ctl_scsiio *ctsio)
 670 {
 671         struct ctl_lun *lun;
 672         struct scsi_receive_copy_status_lid4 *cdb;
 673         struct scsi_receive_copy_status_lid4_data *data;
 674         struct tpc_list *list;
 675         struct tpc_list list_copy;
 676         int retval;
 677         int alloc_len, total_len;
 678         uint32_t list_id;
 679
 680         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid4\n"));
 681
 682         cdb = (struct scsi_receive_copy_status_lid4 *)ctsio->cdb;
 683         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 684
 685         retval = CTL_RETVAL_COMPLETE;
 686
 687         list_id = scsi_4btoul(cdb->list_identifier);
 688         mtx_lock(&lun->lun_lock);
 689         list = tpc_find_list(lun, list_id,
 690             ctl_get_initindex(&ctsio->io_hdr.nexus));
 691         if (list == NULL) {
 692                 mtx_unlock(&lun->lun_lock);
 693                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 694                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 695                     /*bit*/ 0);
 696                 ctl_done((union ctl_io *)ctsio);
 697                 return (retval);
 698         }
 699         list_copy = *list;
 700         if (list->completed) {
 701                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
 702                 free(list, M_CTL);
 703         }
 704         mtx_unlock(&lun->lun_lock);
 705
 706         total_len = sizeof(*data) + list_copy.sense_len;
 707         alloc_len = scsi_4btoul(cdb->length);
 708
 709         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
 710
 711         ctsio->kern_sg_entries = 0;
 712
 713         if (total_len < alloc_len) {
 714                 ctsio->residual = alloc_len - total_len;
 715                 ctsio->kern_data_len = total_len;
 716                 ctsio->kern_total_len = total_len;
 717         } else {
 718                 ctsio->residual = 0;
 719                 ctsio->kern_data_len = alloc_len;
 720                 ctsio->kern_total_len = alloc_len;
 721         }
 722         ctsio->kern_data_resid = 0;
 723         ctsio->kern_rel_offset = 0;
 724
 725         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
 726         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
 727             data->available_data);
 728         data->response_to_service_action = list_copy.service_action;
 729         if (list_copy.completed) {
 730                 if (list_copy.error)
 731                         data->copy_command_status = RCS_CCS_ERROR;
 732                 else if (list_copy.abort)
 733                         data->copy_command_status = RCS_CCS_ABORTED;
 734                 else
 735                         data->copy_command_status = RCS_CCS_COMPLETED;
 736         } else
 737                 data->copy_command_status = RCS_CCS_INPROG_FG;
 738         scsi_ulto2b(list_copy.curops, data->operation_counter);
 739         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
 740         data->transfer_count_units = RCS_TC_BYTES;
 741         scsi_u64to8b(list_copy.curbytes, data->transfer_count);
 742         scsi_ulto2b(list_copy.curseg, data->segments_processed);
 743         data->length_of_the_sense_data_field = list_copy.sense_len;
 744         data->sense_data_length = list_copy.sense_len;
 745         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
 746
 747         ctl_set_success(ctsio);
 748         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
 749         ctsio->be_move_done = ctl_config_move_done;
 750         ctl_datamove((union ctl_io *)ctsio);
 751         return (retval);
 752 }
 753
 754 int
 755 ctl_copy_operation_abort(struct ctl_scsiio *ctsio)
 756 {
 757         struct ctl_lun *lun;
 758         struct scsi_copy_operation_abort *cdb;
 759         struct tpc_list *list;
 760         int retval;
 761         uint32_t list_id;
 762
 763         CTL_DEBUG_PRINT(("ctl_copy_operation_abort\n"));
 764
 765         cdb = (struct scsi_copy_operation_abort *)ctsio->cdb;
 766         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
 767
 768         retval = CTL_RETVAL_COMPLETE;
 769
 770         list_id = scsi_4btoul(cdb->list_identifier);
 771         mtx_lock(&lun->lun_lock);
 772         list = tpc_find_list(lun, list_id,
 773             ctl_get_initindex(&ctsio->io_hdr.nexus));
 774         if (list == NULL) {
 775                 mtx_unlock(&lun->lun_lock);
 776                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
 777                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
 778                     /*bit*/ 0);
 779                 ctl_done((union ctl_io *)ctsio);
 780                 return (retval);
 781         }
 782         list->abort = 1;
 783         mtx_unlock(&lun->lun_lock);
 784
 785         ctl_set_success(ctsio);
 786         ctl_done((union ctl_io *)ctsio);
 787         return (retval);
 788 }
 789
 790 static uint64_t
 791 tpc_resolve(struct tpc_list *list, uint16_t idx, uint32_t *ss,
 792     uint32_t *pb, uint32_t *pbo)
 793 {
 794
 795         if (idx == 0xffff) {
 796                 if (ss && list->lun->be_lun)
 797                         *ss = list->lun->be_lun->blocksize;
 798                 if (pb && list->lun->be_lun)
 799                         *pb = list->lun->be_lun->blocksize <<
 800                             list->lun->be_lun->pblockexp;
 801                 if (pbo && list->lun->be_lun)
 802                         *pbo = list->lun->be_lun->blocksize *
 803                             list->lun->be_lun->pblockoff;
 804                 return (list->lun->lun);
 805         }
 806         if (idx >= list->ncscd)
 807                 return (UINT64_MAX);
 808         return (tpcl_resolve(list->lun->ctl_softc,
 809             list->init_port, &list->cscd[idx], ss, pb, pbo));
 810 }
 811
 812 static int
 813 tpc_process_b2b(struct tpc_list *list)
 814 {
 815         struct scsi_ec_segment_b2b *seg;
 816         struct scsi_ec_cscd_dtsp *sdstp, *ddstp;
 817         struct tpc_io *tior, *tiow;
 818         struct runl run;
 819         uint64_t sl, dl;
 820         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
 821         int numlba;
 822         uint32_t srcblock, dstblock, pb, pbo, adj;
 823         uint8_t csi[4];
 824
 825         scsi_ulto4b(list->curseg, csi);
 826         if (list->stage == 1) {
 827                 while ((tior = TAILQ_FIRST(&list->allio)) != NULL) {
 828                         TAILQ_REMOVE(&list->allio, tior, links);
 829                         ctl_free_io(tior->io);
 830                         free(tior, M_CTL);
 831                 }
 832                 free(list->buf, M_CTL);
 833                 if (list->abort) {
 834                         ctl_set_task_aborted(list->ctsio);
 835                         return (CTL_RETVAL_ERROR);
 836                 } else if (list->error) {
 837                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 838                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 839                             /*asc*/ 0x0d, /*ascq*/ 0x01,
 840                             SSD_ELEM_COMMAND, sizeof(csi), csi,
 841                             SSD_ELEM_NONE);
 842                         return (CTL_RETVAL_ERROR);
 843                 }
 844                 list->cursectors += list->segsectors;
 845                 list->curbytes += list->segbytes;
 846                 return (CTL_RETVAL_COMPLETE);
 847         }
 848
 849         TAILQ_INIT(&list->allio);
 850         seg = (struct scsi_ec_segment_b2b *)list->seg[list->curseg];
 851         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), &srcblock, NULL, NULL);
 852         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), &dstblock, &pb, &pbo);
 853         if (sl >= CTL_MAX_LUNS || dl >= CTL_MAX_LUNS) {
 854                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 855                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 856                     /*asc*/ 0x08, /*ascq*/ 0x04,
 857                     SSD_ELEM_COMMAND, sizeof(csi), csi,
 858                     SSD_ELEM_NONE);
 859                 return (CTL_RETVAL_ERROR);
 860         }
 861         if (pbo > 0)
 862                 pbo = pb - pbo;
 863         sdstp = &list->cscd[scsi_2btoul(seg->src_cscd)].dtsp;
 864         if (scsi_3btoul(sdstp->block_length) != 0)
 865                 srcblock = scsi_3btoul(sdstp->block_length);
 866         ddstp = &list->cscd[scsi_2btoul(seg->dst_cscd)].dtsp;
 867         if (scsi_3btoul(ddstp->block_length) != 0)
 868                 dstblock = scsi_3btoul(ddstp->block_length);
 869         numlba = scsi_2btoul(seg->number_of_blocks);
 870         if (seg->flags & EC_SEG_DC)
 871                 numbytes = (off_t)numlba * dstblock;
 872         else
 873                 numbytes = (off_t)numlba * srcblock;
 874         srclba = scsi_8btou64(seg->src_lba);
 875         dstlba = scsi_8btou64(seg->dst_lba);
 876
 877 //      printf("Copy %ju bytes from %ju @ %ju to %ju @ %ju\n",
 878 //          (uintmax_t)numbytes, sl, scsi_8btou64(seg->src_lba),
 879 //          dl, scsi_8btou64(seg->dst_lba));
 880
 881         if (numbytes == 0)
 882                 return (CTL_RETVAL_COMPLETE);
 883
 884         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
 885                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
 886                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
 887                     /*asc*/ 0x26, /*ascq*/ 0x0A,
 888                     SSD_ELEM_COMMAND, sizeof(csi), csi,
 889                     SSD_ELEM_NONE);
 890                 return (CTL_RETVAL_ERROR);
 891         }
 892
 893         list->buf = malloc(numbytes, M_CTL, M_WAITOK);
 894         list->segbytes = numbytes;
 895         list->segsectors = numbytes / dstblock;
 896         donebytes = 0;
 897         TAILQ_INIT(&run);
 898         list->tbdio = 0;
 899         while (donebytes < numbytes) {
 900                 roundbytes = numbytes - donebytes;
 901                 if (roundbytes > TPC_MAX_IO_SIZE) {
 902                         roundbytes = TPC_MAX_IO_SIZE;
 903                         roundbytes -= roundbytes % dstblock;
 904                         if (pb > dstblock) {
 905                                 adj = (dstlba * dstblock + roundbytes - pbo) % pb;
 906                                 if (roundbytes > adj)
 907                                         roundbytes -= adj;
 908                         }
 909                 }
 910
 911                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 912                 TAILQ_INIT(&tior->run);
 913                 tior->list = list;
 914                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
 915                 tior->io = tpcl_alloc_io();
 916                 ctl_scsi_read_write(tior->io,
 917                                     /*data_ptr*/ &list->buf[donebytes],
 918                                     /*data_len*/ roundbytes,
 919                                     /*read_op*/ 1,
 920                                     /*byte2*/ 0,
 921                                     /*minimum_cdb_size*/ 0,
 922                                     /*lba*/ srclba,
 923                                     /*num_blocks*/ roundbytes / srcblock,
 924                                     /*tag_type*/ CTL_TAG_SIMPLE,
 925                                     /*control*/ 0);
 926                 tior->io->io_hdr.retries = 3;
 927                 tior->lun = sl;
 928                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
 929
 930                 tiow = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
 931                 TAILQ_INIT(&tiow->run);
 932                 tiow->list = list;
 933                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
 934                 tiow->io = tpcl_alloc_io();
 935                 ctl_scsi_read_write(tiow->io,
 936                                     /*data_ptr*/ &list->buf[donebytes],
 937                                     /*data_len*/ roundbytes,
 938                                     /*read_op*/ 0,
 939                                     /*byte2*/ 0,
 940                                     /*minimum_cdb_size*/ 0,
 941                                     /*lba*/ dstlba,
 942                                     /*num_blocks*/ roundbytes / dstblock,
 943                                     /*tag_type*/ CTL_TAG_SIMPLE,
 944                                     /*control*/ 0);
 945                 tiow->io->io_hdr.retries = 3;
 946                 tiow->lun = dl;
 947                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
 948
 949                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
 950                 TAILQ_INSERT_TAIL(&run, tior, rlinks);
 951                 list->tbdio++;
 952                 donebytes += roundbytes;
 953                 srclba += roundbytes / srcblock;
 954                 dstlba += roundbytes / dstblock;
 955         }
 956
 957         while ((tior = TAILQ_FIRST(&run)) != NULL) {
 958                 TAILQ_REMOVE(&run, tior, rlinks);
 959                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
 960                         panic("tpcl_queue() error");
 961         }
 962
 963         list->stage++;
 964         return (CTL_RETVAL_QUEUED);
 965 }
 966
 967 static int
 968 tpc_process_verify(struct tpc_list *list)
 969 {
 970         struct scsi_ec_segment_verify *seg;
 971         struct tpc_io *tio;
 972         uint64_t sl;
 973         uint8_t csi[4];
 974
 975         scsi_ulto4b(list->curseg, csi);
 976         if (list->stage == 1) {
 977                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
 978                         TAILQ_REMOVE(&list->allio, tio, links);
 979                         ctl_free_io(tio->io);
 980                         free(tio, M_CTL);
 981                 }
 982                 if (list->abort) {
 983                         ctl_set_task_aborted(list->ctsio);
 984                         return (CTL_RETVAL_ERROR);
 985                 } else if (list->error) {
 986                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
 987                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
 988                             /*asc*/ 0x0d, /*ascq*/ 0x01,
 989                             SSD_ELEM_COMMAND, sizeof(csi), csi,
 990                             SSD_ELEM_NONE);
 991                         return (CTL_RETVAL_ERROR);
 992                 } else
 993                         return (CTL_RETVAL_COMPLETE);
 994         }
 995
 996         TAILQ_INIT(&list->allio);
 997         seg = (struct scsi_ec_segment_verify *)list->seg[list->curseg];
 998         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), NULL, NULL, NULL);
 999         if (sl >= CTL_MAX_LUNS) {
1000                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1001                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1002                     /*asc*/ 0x08, /*ascq*/ 0x04,
1003                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1004                     SSD_ELEM_NONE);
1005                 return (CTL_RETVAL_ERROR);
1006         }
1007
1008 //      printf("Verify %ju\n", sl);
1009
1010         if ((seg->tur & 0x01) == 0)
1011                 return (CTL_RETVAL_COMPLETE);
1012
1013         list->tbdio = 1;
1014         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1015         TAILQ_INIT(&tio->run);
1016         tio->list = list;
1017         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1018         tio->io = tpcl_alloc_io();
1019         ctl_scsi_tur(tio->io, /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1020         tio->io->io_hdr.retries = 3;
1021         tio->lun = sl;
1022         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1023         list->stage++;
1024         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1025                 panic("tpcl_queue() error");
1026         return (CTL_RETVAL_QUEUED);
1027 }
1028
1029 static int
1030 tpc_process_register_key(struct tpc_list *list)
1031 {
1032         struct scsi_ec_segment_register_key *seg;
1033         struct tpc_io *tio;
1034         uint64_t dl;
1035         int datalen;
1036         uint8_t csi[4];
1037
1038         scsi_ulto4b(list->curseg, csi);
1039         if (list->stage == 1) {
1040                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1041                         TAILQ_REMOVE(&list->allio, tio, links);
1042                         ctl_free_io(tio->io);
1043                         free(tio, M_CTL);
1044                 }
1045                 free(list->buf, M_CTL);
1046                 if (list->abort) {
1047                         ctl_set_task_aborted(list->ctsio);
1048                         return (CTL_RETVAL_ERROR);
1049                 } else if (list->error) {
1050                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1051                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1052                             /*asc*/ 0x0d, /*ascq*/ 0x01,
1053                             SSD_ELEM_COMMAND, sizeof(csi), csi,
1054                             SSD_ELEM_NONE);
1055                         return (CTL_RETVAL_ERROR);
1056                 } else
1057                         return (CTL_RETVAL_COMPLETE);
1058         }
1059
1060         TAILQ_INIT(&list->allio);
1061         seg = (struct scsi_ec_segment_register_key *)list->seg[list->curseg];
1062         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), NULL, NULL, NULL);
1063         if (dl >= CTL_MAX_LUNS) {
1064                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1065                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1066                     /*asc*/ 0x08, /*ascq*/ 0x04,
1067                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1068                     SSD_ELEM_NONE);
1069                 return (CTL_RETVAL_ERROR);
1070         }
1071
1072 //      printf("Register Key %ju\n", dl);
1073
1074         list->tbdio = 1;
1075         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1076         TAILQ_INIT(&tio->run);
1077         tio->list = list;
1078         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1079         tio->io = tpcl_alloc_io();
1080         datalen = sizeof(struct scsi_per_res_out_parms);
1081         list->buf = malloc(datalen, M_CTL, M_WAITOK);
1082         ctl_scsi_persistent_res_out(tio->io,
1083             list->buf, datalen, SPRO_REGISTER, -1,
1084             scsi_8btou64(seg->res_key), scsi_8btou64(seg->sa_res_key),
1085             /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1086         tio->io->io_hdr.retries = 3;
1087         tio->lun = dl;
1088         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1089         list->stage++;
1090         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1091                 panic("tpcl_queue() error");
1092         return (CTL_RETVAL_QUEUED);
1093 }
1094
1095 static off_t
1096 tpc_ranges_length(struct scsi_range_desc *range, int nrange)
1097 {
1098         off_t length = 0;
1099         int r;
1100
1101         for (r = 0; r < nrange; r++)
1102                 length += scsi_4btoul(range[r].length);
1103         return (length);
1104 }
1105
1106 static int
1107 tpc_check_ranges(struct scsi_range_desc *range, int nrange, uint64_t maxlba)
1108 {
1109         uint64_t b1, b2;
1110         uint32_t l1, l2;
1111         int i, j;
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         for (i = 0; i < nrange - 1; i++) {
1120                 b1 = scsi_8btou64(range[i].lba);
1121                 l1 = scsi_4btoul(range[i].length);
1122                 for (j = i + 1; j < nrange; j++) {
1123                         b2 = scsi_8btou64(range[j].lba);
1124                         l2 = scsi_4btoul(range[j].length);
1125                         if (b1 + l1 > b2 && b2 + l2 > b1)
1126                                 return (-1);
1127                 }
1128         }
1129         return (0);
1130 }
1131
1132 static int
1133 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1134     int *srange, off_t *soffset)
1135 {
1136         off_t off;
1137         int r;
1138
1139         r = 0;
1140         off = 0;
1141         while (r < nrange) {
1142                 if (skip - off < scsi_4btoul(range[r].length)) {
1143                         *srange = r;
1144                         *soffset = skip - off;
1145                         return (0);
1146                 }
1147                 off += scsi_4btoul(range[r].length);
1148                 r++;
1149         }
1150         return (-1);
1151 }
1152
1153 static int
1154 tpc_process_wut(struct tpc_list *list)
1155 {
1156         struct tpc_io *tio, *tior, *tiow;
1157         struct runl run;
1158         int drange, srange;
1159         off_t doffset, soffset;
1160         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1161         uint32_t srcblock, dstblock, pb, pbo, adj;
1162
1163         if (list->stage > 0) {
1164                 /* Cleanup after previous rounds. */
1165                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1166                         TAILQ_REMOVE(&list->allio, tio, links);
1167                         ctl_free_io(tio->io);
1168                         free(tio, M_CTL);
1169                 }
1170                 free(list->buf, M_CTL);
1171                 if (list->abort) {
1172                         ctl_set_task_aborted(list->ctsio);
1173                         return (CTL_RETVAL_ERROR);
1174                 } else if (list->error) {
1175                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1176                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1177                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1178                         return (CTL_RETVAL_ERROR);
1179                 }
1180                 list->cursectors += list->segsectors;
1181                 list->curbytes += list->segbytes;
1182         }
1183
1184         /* Check where we are on destination ranges list. */
1185         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1186             &drange, &doffset) != 0)
1187                 return (CTL_RETVAL_COMPLETE);
1188         dstblock = list->lun->be_lun->blocksize;
1189         pb = dstblock << list->lun->be_lun->pblockexp;
1190         if (list->lun->be_lun->pblockoff > 0)
1191                 pbo = pb - dstblock * list->lun->be_lun->pblockoff;
1192         else
1193                 pbo = 0;
1194
1195         /* Check where we are on source ranges list. */
1196         srcblock = list->token->blocksize;
1197         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1198             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1199             &srange, &soffset) != 0) {
1200                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1201                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1202                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1203                 return (CTL_RETVAL_ERROR);
1204         }
1205
1206         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1207         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1208         numbytes = srcblock *
1209             (scsi_4btoul(list->token->range[srange].length) - soffset);
1210         numbytes = omin(numbytes, dstblock *
1211             (scsi_4btoul(list->range[drange].length) - doffset));
1212         if (numbytes > TPC_MAX_IOCHUNK_SIZE) {
1213                 numbytes = TPC_MAX_IOCHUNK_SIZE;
1214                 numbytes -= numbytes % dstblock;
1215                 if (pb > dstblock) {
1216                         adj = (dstlba * dstblock + numbytes - pbo) % pb;
1217                         if (numbytes > adj)
1218                                 numbytes -= adj;
1219                 }
1220         }
1221
1222         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1223                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1224                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1225                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1226                 return (CTL_RETVAL_ERROR);
1227         }
1228
1229         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1230             (list->token == NULL ? M_ZERO : 0));
1231         list->segbytes = numbytes;
1232         list->segsectors = numbytes / dstblock;
1233 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1234 //    srclba, dstlba);
1235         donebytes = 0;
1236         TAILQ_INIT(&run);
1237         list->tbdio = 0;
1238         TAILQ_INIT(&list->allio);
1239         while (donebytes < numbytes) {
1240                 roundbytes = numbytes - donebytes;
1241                 if (roundbytes > TPC_MAX_IO_SIZE) {
1242                         roundbytes = TPC_MAX_IO_SIZE;
1243                         roundbytes -= roundbytes % dstblock;
1244                         if (pb > dstblock) {
1245                                 adj = (dstlba * dstblock + roundbytes - pbo) % pb;
1246                                 if (roundbytes > adj)
1247                                         roundbytes -= adj;
1248                         }
1249                 }
1250
1251                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1252                 TAILQ_INIT(&tior->run);
1253                 tior->list = list;
1254                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1255                 tior->io = tpcl_alloc_io();
1256                 ctl_scsi_read_write(tior->io,
1257                                     /*data_ptr*/ &list->buf[donebytes],
1258                                     /*data_len*/ roundbytes,
1259                                     /*read_op*/ 1,
1260                                     /*byte2*/ 0,
1261                                     /*minimum_cdb_size*/ 0,
1262                                     /*lba*/ srclba,
1263                                     /*num_blocks*/ roundbytes / srcblock,
1264                                     /*tag_type*/ CTL_TAG_SIMPLE,
1265                                     /*control*/ 0);
1266                 tior->io->io_hdr.retries = 3;
1267                 tior->lun = list->token->lun;
1268                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1269
1270                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1271                 TAILQ_INIT(&tiow->run);
1272                 tiow->list = list;
1273                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1274                 tiow->io = tpcl_alloc_io();
1275                 ctl_scsi_read_write(tiow->io,
1276                                     /*data_ptr*/ &list->buf[donebytes],
1277                                     /*data_len*/ roundbytes,
1278                                     /*read_op*/ 0,
1279                                     /*byte2*/ 0,
1280                                     /*minimum_cdb_size*/ 0,
1281                                     /*lba*/ dstlba,
1282                                     /*num_blocks*/ roundbytes / dstblock,
1283                                     /*tag_type*/ CTL_TAG_SIMPLE,
1284                                     /*control*/ 0);
1285                 tiow->io->io_hdr.retries = 3;
1286                 tiow->lun = list->lun->lun;
1287                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1288
1289                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1290                 TAILQ_INSERT_TAIL(&run, tior, rlinks);
1291                 list->tbdio++;
1292                 donebytes += roundbytes;
1293                 srclba += roundbytes / srcblock;
1294                 dstlba += roundbytes / dstblock;
1295         }
1296
1297         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1298                 TAILQ_REMOVE(&run, tior, rlinks);
1299                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1300                         panic("tpcl_queue() error");
1301         }
1302
1303         list->stage++;
1304         return (CTL_RETVAL_QUEUED);
1305 }
1306
1307 static int
1308 tpc_process_zero_wut(struct tpc_list *list)
1309 {
1310         struct tpc_io *tio, *tiow;
1311         struct runl run, *prun;
1312         int r;
1313         uint32_t dstblock, len;
1314
1315         if (list->stage > 0) {
1316 complete:
1317                 /* Cleanup after previous rounds. */
1318                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1319                         TAILQ_REMOVE(&list->allio, tio, links);
1320                         ctl_free_io(tio->io);
1321                         free(tio, M_CTL);
1322                 }
1323                 if (list->abort) {
1324                         ctl_set_task_aborted(list->ctsio);
1325                         return (CTL_RETVAL_ERROR);
1326                 } else if (list->error) {
1327                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1328                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1329                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1330                         return (CTL_RETVAL_ERROR);
1331                 }
1332                 list->cursectors += list->segsectors;
1333                 list->curbytes += list->segbytes;
1334                 return (CTL_RETVAL_COMPLETE);
1335         }
1336
1337         dstblock = list->lun->be_lun->blocksize;
1338         TAILQ_INIT(&run);
1339         prun = &run;
1340         list->tbdio = 1;
1341         TAILQ_INIT(&list->allio);
1342         list->segsectors = 0;
1343         for (r = 0; r < list->nrange; r++) {
1344                 len = scsi_4btoul(list->range[r].length);
1345                 if (len == 0)
1346                         continue;
1347
1348                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1349                 TAILQ_INIT(&tiow->run);
1350                 tiow->list = list;
1351                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1352                 tiow->io = tpcl_alloc_io();
1353                 ctl_scsi_write_same(tiow->io,
1354                                     /*data_ptr*/ NULL,
1355                                     /*data_len*/ 0,
1356                                     /*byte2*/ SWS_NDOB,
1357                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1358                                     /*num_blocks*/ len,
1359                                     /*tag_type*/ CTL_TAG_SIMPLE,
1360                                     /*control*/ 0);
1361                 tiow->io->io_hdr.retries = 3;
1362                 tiow->lun = list->lun->lun;
1363                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1364
1365                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1366                 prun = &tiow->run;
1367                 list->segsectors += len;
1368         }
1369         list->segbytes = list->segsectors * dstblock;
1370
1371         if (TAILQ_EMPTY(&run))
1372                 goto complete;
1373
1374         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1375                 TAILQ_REMOVE(&run, tiow, rlinks);
1376                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1377                         panic("tpcl_queue() error");
1378         }
1379
1380         list->stage++;
1381         return (CTL_RETVAL_QUEUED);
1382 }
1383
1384 static void
1385 tpc_process(struct tpc_list *list)
1386 {
1387         struct ctl_lun *lun = list->lun;
1388         struct ctl_softc *softc = lun->ctl_softc;
1389         struct scsi_ec_segment *seg;
1390         struct ctl_scsiio *ctsio = list->ctsio;
1391         int retval = CTL_RETVAL_COMPLETE;
1392         uint8_t csi[4];
1393
1394         if (list->service_action == EC_WUT) {
1395                 if (list->token != NULL)
1396                         retval = tpc_process_wut(list);
1397                 else
1398                         retval = tpc_process_zero_wut(list);
1399                 if (retval == CTL_RETVAL_QUEUED)
1400                         return;
1401                 if (retval == CTL_RETVAL_ERROR) {
1402                         list->error = 1;
1403                         goto done;
1404                 }
1405         } else {
1406 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1407                 while (list->curseg < list->nseg) {
1408                         seg = list->seg[list->curseg];
1409                         switch (seg->type_code) {
1410                         case EC_SEG_B2B:
1411                                 retval = tpc_process_b2b(list);
1412                                 break;
1413                         case EC_SEG_VERIFY:
1414                                 retval = tpc_process_verify(list);
1415                                 break;
1416                         case EC_SEG_REGISTER_KEY:
1417                                 retval = tpc_process_register_key(list);
1418                                 break;
1419                         default:
1420                                 scsi_ulto4b(list->curseg, csi);
1421                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1422                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1423                                     /*asc*/ 0x26, /*ascq*/ 0x09,
1424                                     SSD_ELEM_COMMAND, sizeof(csi), csi,
1425                                     SSD_ELEM_NONE);
1426                                 goto done;
1427                         }
1428                         if (retval == CTL_RETVAL_QUEUED)
1429                                 return;
1430                         if (retval == CTL_RETVAL_ERROR) {
1431                                 list->error = 1;
1432                                 goto done;
1433                         }
1434                         list->curseg++;
1435                         list->stage = 0;
1436                 }
1437         }
1438
1439         ctl_set_success(ctsio);
1440
1441 done:
1442 //printf("ZZZ done\n");
1443         free(list->params, M_CTL);
1444         list->params = NULL;
1445         if (list->token) {
1446                 mtx_lock(&softc->tpc_lock);
1447                 if (--list->token->active == 0)
1448                         list->token->last_active = time_uptime;
1449                 mtx_unlock(&softc->tpc_lock);
1450                 list->token = NULL;
1451         }
1452         mtx_lock(&lun->lun_lock);
1453         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1454                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1455                 free(list, M_CTL);
1456         } else {
1457                 list->completed = 1;
1458                 list->last_active = time_uptime;
1459                 list->sense_data = ctsio->sense_data;
1460                 list->sense_len = ctsio->sense_len;
1461                 list->scsi_status = ctsio->scsi_status;
1462         }
1463         mtx_unlock(&lun->lun_lock);
1464
1465         ctl_done((union ctl_io *)ctsio);
1466 }
1467
1468 /*
1469  * For any sort of check condition, busy, etc., we just retry.  We do not
1470  * decrement the retry count for unit attention type errors.  These are
1471  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1472  * we could end up with situations where a command will succeed in some
1473  * situations and fail in others, depending on whether a unit attention is
1474  * pending.  Also, some of our error recovery actions, most notably the
1475  * LUN reset action, will cause a unit attention.
1476  *
1477  * We can add more detail here later if necessary.
1478  */
1479 static tpc_error_action
1480 tpc_checkcond_parse(union ctl_io *io)
1481 {
1482         tpc_error_action error_action;
1483         int error_code, sense_key, asc, ascq;
1484
1485         /*
1486          * Default to retrying the command.
1487          */
1488         error_action = TPC_ERR_RETRY;
1489
1490         scsi_extract_sense_len(&io->scsiio.sense_data,
1491                                io->scsiio.sense_len,
1492                                &error_code,
1493                                &sense_key,
1494                                &asc,
1495                                &ascq,
1496                                /*show_errors*/ 1);
1497
1498         switch (error_code) {
1499         case SSD_DEFERRED_ERROR:
1500         case SSD_DESC_DEFERRED_ERROR:
1501                 error_action |= TPC_ERR_NO_DECREMENT;
1502                 break;
1503         case SSD_CURRENT_ERROR:
1504         case SSD_DESC_CURRENT_ERROR:
1505         default:
1506                 switch (sense_key) {
1507                 case SSD_KEY_UNIT_ATTENTION:
1508                         error_action |= TPC_ERR_NO_DECREMENT;
1509                         break;
1510                 case SSD_KEY_HARDWARE_ERROR:
1511                         /*
1512                          * This is our generic "something bad happened"
1513                          * error code.  It often isn't recoverable.
1514                          */
1515                         if ((asc == 0x44) && (ascq == 0x00))
1516                                 error_action = TPC_ERR_FAIL;
1517                         break;
1518                 case SSD_KEY_NOT_READY:
1519                         /*
1520                          * If the LUN is powered down, there likely isn't
1521                          * much point in retrying right now.
1522                          */
1523                         if ((asc == 0x04) && (ascq == 0x02))
1524                                 error_action = TPC_ERR_FAIL;
1525                         /*
1526                          * If the LUN is offline, there probably isn't much
1527                          * point in retrying, either.
1528                          */
1529                         if ((asc == 0x04) && (ascq == 0x03))
1530                                 error_action = TPC_ERR_FAIL;
1531                         break;
1532                 }
1533         }
1534         return (error_action);
1535 }
1536
1537 static tpc_error_action
1538 tpc_error_parse(union ctl_io *io)
1539 {
1540         tpc_error_action error_action = TPC_ERR_RETRY;
1541
1542         switch (io->io_hdr.io_type) {
1543         case CTL_IO_SCSI:
1544                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1545                 case CTL_SCSI_ERROR:
1546                         switch (io->scsiio.scsi_status) {
1547                         case SCSI_STATUS_CHECK_COND:
1548                                 error_action = tpc_checkcond_parse(io);
1549                                 break;
1550                         default:
1551                                 break;
1552                         }
1553                         break;
1554                 default:
1555                         break;
1556                 }
1557                 break;
1558         case CTL_IO_TASK:
1559                 break;
1560         default:
1561                 panic("%s: invalid ctl_io type %d\n", __func__,
1562                       io->io_hdr.io_type);
1563                 break;
1564         }
1565         return (error_action);
1566 }
1567
1568 void
1569 tpc_done(union ctl_io *io)
1570 {
1571         struct tpc_io *tio, *tior;
1572
1573         /*
1574          * Very minimal retry logic.  We basically retry if we got an error
1575          * back, and the retry count is greater than 0.  If we ever want
1576          * more sophisticated initiator type behavior, the CAM error
1577          * recovery code in ../common might be helpful.
1578          */
1579         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1580         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1581          && (io->io_hdr.retries > 0)) {
1582                 ctl_io_status old_status;
1583                 tpc_error_action error_action;
1584
1585                 error_action = tpc_error_parse(io);
1586                 switch (error_action & TPC_ERR_MASK) {
1587                 case TPC_ERR_FAIL:
1588                         break;
1589                 case TPC_ERR_RETRY:
1590                 default:
1591                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1592                                 io->io_hdr.retries--;
1593                         old_status = io->io_hdr.status;
1594                         io->io_hdr.status = CTL_STATUS_NONE;
1595                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1596                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1597                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1598                                 printf("%s: error returned from ctl_queue()!\n",
1599                                        __func__);
1600                                 io->io_hdr.status = old_status;
1601                         } else
1602                                 return;
1603                 }
1604         }
1605
1606         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1607                 tio->list->error = 1;
1608         else
1609                 atomic_add_int(&tio->list->curops, 1);
1610         if (!tio->list->error && !tio->list->abort) {
1611                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1612                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1613                         atomic_add_int(&tio->list->tbdio, 1);
1614                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1615                                 panic("tpcl_queue() error");
1616                 }
1617         }
1618         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1619                 tpc_process(tio->list);
1620 }
1621
1622 int
1623 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1624 {
1625         struct scsi_extended_copy *cdb;
1626         struct scsi_extended_copy_lid1_data *data;
1627         struct ctl_lun *lun;
1628         struct tpc_list *list, *tlist;
1629         uint8_t *ptr;
1630         char *value;
1631         int len, off, lencscd, lenseg, leninl, nseg;
1632
1633         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1634
1635         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1636         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1637         len = scsi_4btoul(cdb->length);
1638
1639         if (len == 0) {
1640                 ctl_set_success(ctsio);
1641                 goto done;
1642         }
1643         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1644             len > sizeof(struct scsi_extended_copy_lid1_data) +
1645             TPC_MAX_LIST + TPC_MAX_INLINE) {
1646                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1647                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1648                 goto done;
1649         }
1650
1651         /*
1652          * If we've got a kernel request that hasn't been malloced yet,
1653          * malloc it and tell the caller the data buffer is here.
1654          */
1655         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1656                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1657                 ctsio->kern_data_len = len;
1658                 ctsio->kern_total_len = len;
1659                 ctsio->kern_data_resid = 0;
1660                 ctsio->kern_rel_offset = 0;
1661                 ctsio->kern_sg_entries = 0;
1662                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1663                 ctsio->be_move_done = ctl_config_move_done;
1664                 ctl_datamove((union ctl_io *)ctsio);
1665
1666                 return (CTL_RETVAL_COMPLETE);
1667         }
1668
1669         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1670         lencscd = scsi_2btoul(data->cscd_list_length);
1671         lenseg = scsi_4btoul(data->segment_list_length);
1672         leninl = scsi_4btoul(data->inline_data_length);
1673         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1674                 ctl_set_sense(ctsio, /*current_error*/ 1,
1675                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1676                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1677                 goto done;
1678         }
1679         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1680                 ctl_set_sense(ctsio, /*current_error*/ 1,
1681                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1682                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1683                 goto done;
1684         }
1685         if (lencscd + lenseg > TPC_MAX_LIST ||
1686             leninl > TPC_MAX_INLINE ||
1687             len < sizeof(struct scsi_extended_copy_lid1_data) +
1688              lencscd + lenseg + leninl) {
1689                 ctl_set_param_len_error(ctsio);
1690                 goto done;
1691         }
1692
1693         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1694         list->service_action = cdb->service_action;
1695         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1696         if (value != NULL && strcmp(value, "on") == 0)
1697                 list->init_port = -1;
1698         else
1699                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1700         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1701         list->list_id = data->list_identifier;
1702         list->flags = data->flags;
1703         list->params = ctsio->kern_data_ptr;
1704         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1705         ptr = &data->data[lencscd];
1706         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1707                 if (nseg >= TPC_MAX_SEGS) {
1708                         free(list, M_CTL);
1709                         ctl_set_sense(ctsio, /*current_error*/ 1,
1710                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1711                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1712                         goto done;
1713                 }
1714                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1715                 off += sizeof(struct scsi_ec_segment) +
1716                     scsi_2btoul(list->seg[nseg]->descr_length);
1717         }
1718         list->inl = &data->data[lencscd + lenseg];
1719         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1720         list->nseg = nseg;
1721         list->leninl = leninl;
1722         list->ctsio = ctsio;
1723         list->lun = lun;
1724         mtx_lock(&lun->lun_lock);
1725         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1726                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1727                 if (tlist != NULL && !tlist->completed) {
1728                         mtx_unlock(&lun->lun_lock);
1729                         free(list, M_CTL);
1730                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1731                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1732                             /*bit*/ 0);
1733                         goto done;
1734                 }
1735                 if (tlist != NULL) {
1736                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1737                         free(tlist, M_CTL);
1738                 }
1739         }
1740         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1741         mtx_unlock(&lun->lun_lock);
1742
1743         tpc_process(list);
1744         return (CTL_RETVAL_COMPLETE);
1745
1746 done:
1747         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1748                 free(ctsio->kern_data_ptr, M_CTL);
1749                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1750         }
1751         ctl_done((union ctl_io *)ctsio);
1752         return (CTL_RETVAL_COMPLETE);
1753 }
1754
1755 int
1756 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1757 {
1758         struct scsi_extended_copy *cdb;
1759         struct scsi_extended_copy_lid4_data *data;
1760         struct ctl_lun *lun;
1761         struct tpc_list *list, *tlist;
1762         uint8_t *ptr;
1763         char *value;
1764         int len, off, lencscd, lenseg, leninl, nseg;
1765
1766         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1767
1768         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1769         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1770         len = scsi_4btoul(cdb->length);
1771
1772         if (len == 0) {
1773                 ctl_set_success(ctsio);
1774                 goto done;
1775         }
1776         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1777             len > sizeof(struct scsi_extended_copy_lid4_data) +
1778             TPC_MAX_LIST + TPC_MAX_INLINE) {
1779                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1780                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1781                 goto done;
1782         }
1783
1784         /*
1785          * If we've got a kernel request that hasn't been malloced yet,
1786          * malloc it and tell the caller the data buffer is here.
1787          */
1788         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1789                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1790                 ctsio->kern_data_len = len;
1791                 ctsio->kern_total_len = len;
1792                 ctsio->kern_data_resid = 0;
1793                 ctsio->kern_rel_offset = 0;
1794                 ctsio->kern_sg_entries = 0;
1795                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1796                 ctsio->be_move_done = ctl_config_move_done;
1797                 ctl_datamove((union ctl_io *)ctsio);
1798
1799                 return (CTL_RETVAL_COMPLETE);
1800         }
1801
1802         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1803         lencscd = scsi_2btoul(data->cscd_list_length);
1804         lenseg = scsi_2btoul(data->segment_list_length);
1805         leninl = scsi_2btoul(data->inline_data_length);
1806         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1807                 ctl_set_sense(ctsio, /*current_error*/ 1,
1808                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1809                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1810                 goto done;
1811         }
1812         if (lenseg > TPC_MAX_SEGS * sizeof(struct scsi_ec_segment)) {
1813                 ctl_set_sense(ctsio, /*current_error*/ 1,
1814                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1815                     /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1816                 goto done;
1817         }
1818         if (lencscd + lenseg > TPC_MAX_LIST ||
1819             leninl > TPC_MAX_INLINE ||
1820             len < sizeof(struct scsi_extended_copy_lid1_data) +
1821              lencscd + lenseg + leninl) {
1822                 ctl_set_param_len_error(ctsio);
1823                 goto done;
1824         }
1825
1826         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1827         list->service_action = cdb->service_action;
1828         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1829         if (value != NULL && strcmp(value, "on") == 0)
1830                 list->init_port = -1;
1831         else
1832                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1833         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
1834         list->list_id = scsi_4btoul(data->list_identifier);
1835         list->flags = data->flags;
1836         list->params = ctsio->kern_data_ptr;
1837         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1838         ptr = &data->data[lencscd];
1839         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1840                 if (nseg >= TPC_MAX_SEGS) {
1841                         free(list, M_CTL);
1842                         ctl_set_sense(ctsio, /*current_error*/ 1,
1843                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1844                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1845                         goto done;
1846                 }
1847                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1848                 off += sizeof(struct scsi_ec_segment) +
1849                     scsi_2btoul(list->seg[nseg]->descr_length);
1850         }
1851         list->inl = &data->data[lencscd + lenseg];
1852         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1853         list->nseg = nseg;
1854         list->leninl = leninl;
1855         list->ctsio = ctsio;
1856         list->lun = lun;
1857         mtx_lock(&lun->lun_lock);
1858         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1859                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1860                 if (tlist != NULL && !tlist->completed) {
1861                         mtx_unlock(&lun->lun_lock);
1862                         free(list, M_CTL);
1863                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1864                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1865                             /*bit*/ 0);
1866                         goto done;
1867                 }
1868                 if (tlist != NULL) {
1869                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1870                         free(tlist, M_CTL);
1871                 }
1872         }
1873         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1874         mtx_unlock(&lun->lun_lock);
1875
1876         tpc_process(list);
1877         return (CTL_RETVAL_COMPLETE);
1878
1879 done:
1880         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1881                 free(ctsio->kern_data_ptr, M_CTL);
1882                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1883         }
1884         ctl_done((union ctl_io *)ctsio);
1885         return (CTL_RETVAL_COMPLETE);
1886 }
1887
1888 static void
1889 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1890     struct scsi_token *token)
1891 {
1892         static int id = 0;
1893         struct scsi_vpd_id_descriptor *idd = NULL;
1894         struct scsi_ec_cscd_id *cscd;
1895         struct scsi_read_capacity_data_long *dtsd;
1896         int targid_len;
1897
1898         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1899         scsi_ulto2b(0x01f8, token->length);
1900         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1901         if (lun->lun_devid)
1902                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1903                     lun->lun_devid->data, lun->lun_devid->len,
1904                     scsi_devid_is_lun_naa);
1905         if (idd == NULL && lun->lun_devid)
1906                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1907                     lun->lun_devid->data, lun->lun_devid->len,
1908                     scsi_devid_is_lun_eui64);
1909         if (idd != NULL) {
1910                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1911                 cscd->type_code = EC_CSCD_ID;
1912                 cscd->luidt_pdt = T_DIRECT;
1913                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1914                 scsi_ulto3b(lun->be_lun->blocksize, cscd->dtsp.block_length);
1915         }
1916         scsi_u64to8b(0, &token->body[40]); /* XXX: Should be 128bit value. */
1917         scsi_u64to8b(len, &token->body[48]);
1918
1919         /* ROD token device type specific data (RC16 without first field) */
1920         dtsd = (struct scsi_read_capacity_data_long *)&token->body[88 - 8];
1921         scsi_ulto4b(lun->be_lun->blocksize, dtsd->length);
1922         dtsd->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
1923         scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, dtsd->lalba_lbp);
1924         if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
1925                 dtsd->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ;
1926
1927         if (port->target_devid) {
1928                 targid_len = port->target_devid->len;
1929                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1930         } else
1931                 targid_len = 32;
1932         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1933 };
1934
1935 int
1936 ctl_populate_token(struct ctl_scsiio *ctsio)
1937 {
1938         struct scsi_populate_token *cdb;
1939         struct scsi_populate_token_data *data;
1940         struct ctl_softc *softc;
1941         struct ctl_lun *lun;
1942         struct ctl_port *port;
1943         struct tpc_list *list, *tlist;
1944         struct tpc_token *token;
1945         int len, lendata, lendesc;
1946
1947         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1948
1949         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1950         softc = lun->ctl_softc;
1951         port = softc->ctl_ports[ctsio->io_hdr.nexus.targ_port];
1952         cdb = (struct scsi_populate_token *)ctsio->cdb;
1953         len = scsi_4btoul(cdb->length);
1954
1955         if (len < sizeof(struct scsi_populate_token_data) ||
1956             len > sizeof(struct scsi_populate_token_data) +
1957              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1958                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1959                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1960                 goto done;
1961         }
1962
1963         /*
1964          * If we've got a kernel request that hasn't been malloced yet,
1965          * malloc it and tell the caller the data buffer is here.
1966          */
1967         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1968                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1969                 ctsio->kern_data_len = len;
1970                 ctsio->kern_total_len = len;
1971                 ctsio->kern_data_resid = 0;
1972                 ctsio->kern_rel_offset = 0;
1973                 ctsio->kern_sg_entries = 0;
1974                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1975                 ctsio->be_move_done = ctl_config_move_done;
1976                 ctl_datamove((union ctl_io *)ctsio);
1977
1978                 return (CTL_RETVAL_COMPLETE);
1979         }
1980
1981         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1982         lendata = scsi_2btoul(data->length);
1983         if (lendata < sizeof(struct scsi_populate_token_data) - 2 +
1984             sizeof(struct scsi_range_desc)) {
1985                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1986                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
1987                 goto done;
1988         }
1989         lendesc = scsi_2btoul(data->range_descriptor_length);
1990         if (lendesc < sizeof(struct scsi_range_desc) ||
1991             len < sizeof(struct scsi_populate_token_data) + lendesc ||
1992             lendata < sizeof(struct scsi_populate_token_data) - 2 + lendesc) {
1993                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1994                     /*field*/ 14, /*bit_valid*/ 0, /*bit*/ 0);
1995                 goto done;
1996         }
1997 /*
1998         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
1999             scsi_4btoul(cdb->list_identifier),
2000             data->flags, scsi_4btoul(data->inactivity_timeout),
2001             scsi_4btoul(data->rod_type),
2002             scsi_2btoul(data->range_descriptor_length));
2003 */
2004
2005         /* Validate INACTIVITY TIMEOUT field */
2006         if (scsi_4btoul(data->inactivity_timeout) > TPC_MAX_TOKEN_TIMEOUT) {
2007                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2008                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
2009                     /*bit*/ 0);
2010                 goto done;
2011         }
2012
2013         /* Validate ROD TYPE field */
2014         if ((data->flags & EC_PT_RTV) &&
2015             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
2016                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2017                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
2018                 goto done;
2019         }
2020
2021         /* Validate list of ranges */
2022         if (tpc_check_ranges(&data->desc[0],
2023             scsi_2btoul(data->range_descriptor_length) /
2024             sizeof(struct scsi_range_desc),
2025             lun->be_lun->maxlba) != 0) {
2026                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2027                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2028                     /*bit*/ 0);
2029                 goto done;
2030         }
2031
2032         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2033         list->service_action = cdb->service_action;
2034         list->init_port = ctsio->io_hdr.nexus.targ_port;
2035         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2036         list->list_id = scsi_4btoul(cdb->list_identifier);
2037         list->flags = data->flags;
2038         list->ctsio = ctsio;
2039         list->lun = lun;
2040         mtx_lock(&lun->lun_lock);
2041         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2042         if (tlist != NULL && !tlist->completed) {
2043                 mtx_unlock(&lun->lun_lock);
2044                 free(list, M_CTL);
2045                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2046                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2047                     /*bit*/ 0);
2048                 goto done;
2049         }
2050         if (tlist != NULL) {
2051                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2052                 free(tlist, M_CTL);
2053         }
2054         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2055         mtx_unlock(&lun->lun_lock);
2056
2057         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
2058         token->lun = lun->lun;
2059         token->blocksize = lun->be_lun->blocksize;
2060         token->params = ctsio->kern_data_ptr;
2061         token->range = &data->desc[0];
2062         token->nrange = scsi_2btoul(data->range_descriptor_length) /
2063             sizeof(struct scsi_range_desc);
2064         list->cursectors = tpc_ranges_length(token->range, token->nrange);
2065         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
2066         tpc_create_token(lun, port, list->curbytes,
2067             (struct scsi_token *)token->token);
2068         token->active = 0;
2069         token->last_active = time_uptime;
2070         token->timeout = scsi_4btoul(data->inactivity_timeout);
2071         if (token->timeout == 0)
2072                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
2073         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
2074                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
2075         memcpy(list->res_token, token->token, sizeof(list->res_token));
2076         list->res_token_valid = 1;
2077         list->curseg = 0;
2078         list->completed = 1;
2079         list->last_active = time_uptime;
2080         mtx_lock(&softc->tpc_lock);
2081         TAILQ_INSERT_TAIL(&softc->tpc_tokens, token, links);
2082         mtx_unlock(&softc->tpc_lock);
2083         ctl_set_success(ctsio);
2084         ctl_done((union ctl_io *)ctsio);
2085         return (CTL_RETVAL_COMPLETE);
2086
2087 done:
2088         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2089                 free(ctsio->kern_data_ptr, M_CTL);
2090                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2091         }
2092         ctl_done((union ctl_io *)ctsio);
2093         return (CTL_RETVAL_COMPLETE);
2094 }
2095
2096 int
2097 ctl_write_using_token(struct ctl_scsiio *ctsio)
2098 {
2099         struct scsi_write_using_token *cdb;
2100         struct scsi_write_using_token_data *data;
2101         struct ctl_softc *softc;
2102         struct ctl_lun *lun;
2103         struct tpc_list *list, *tlist;
2104         struct tpc_token *token;
2105         int len, lendata, lendesc;
2106
2107         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
2108
2109         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2110         softc = lun->ctl_softc;
2111         cdb = (struct scsi_write_using_token *)ctsio->cdb;
2112         len = scsi_4btoul(cdb->length);
2113
2114         if (len < sizeof(struct scsi_write_using_token_data) ||
2115             len > sizeof(struct scsi_write_using_token_data) +
2116              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
2117                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
2118                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
2119                 goto done;
2120         }
2121
2122         /*
2123          * If we've got a kernel request that hasn't been malloced yet,
2124          * malloc it and tell the caller the data buffer is here.
2125          */
2126         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
2127                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
2128                 ctsio->kern_data_len = len;
2129                 ctsio->kern_total_len = len;
2130                 ctsio->kern_data_resid = 0;
2131                 ctsio->kern_rel_offset = 0;
2132                 ctsio->kern_sg_entries = 0;
2133                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2134                 ctsio->be_move_done = ctl_config_move_done;
2135                 ctl_datamove((union ctl_io *)ctsio);
2136
2137                 return (CTL_RETVAL_COMPLETE);
2138         }
2139
2140         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
2141         lendata = scsi_2btoul(data->length);
2142         if (lendata < sizeof(struct scsi_write_using_token_data) - 2 +
2143             sizeof(struct scsi_range_desc)) {
2144                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2145                     /*field*/ 0, /*bit_valid*/ 0, /*bit*/ 0);
2146                 goto done;
2147         }
2148         lendesc = scsi_2btoul(data->range_descriptor_length);
2149         if (lendesc < sizeof(struct scsi_range_desc) ||
2150             len < sizeof(struct scsi_write_using_token_data) + lendesc ||
2151             lendata < sizeof(struct scsi_write_using_token_data) - 2 + lendesc) {
2152                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2153                     /*field*/ 534, /*bit_valid*/ 0, /*bit*/ 0);
2154                 goto done;
2155         }
2156 /*
2157         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2158             scsi_4btoul(cdb->list_identifier),
2159             data->flags, scsi_8btou64(data->offset_into_rod),
2160             scsi_2btoul(data->range_descriptor_length));
2161 */
2162
2163         /* Validate list of ranges */
2164         if (tpc_check_ranges(&data->desc[0],
2165             scsi_2btoul(data->range_descriptor_length) /
2166             sizeof(struct scsi_range_desc),
2167             lun->be_lun->maxlba) != 0) {
2168                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0,
2169                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2170                     /*bit*/ 0);
2171                 goto done;
2172         }
2173
2174         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2175         list->service_action = cdb->service_action;
2176         list->init_port = ctsio->io_hdr.nexus.targ_port;
2177         list->init_idx = ctl_get_initindex(&ctsio->io_hdr.nexus);
2178         list->list_id = scsi_4btoul(cdb->list_identifier);
2179         list->flags = data->flags;
2180         list->params = ctsio->kern_data_ptr;
2181         list->range = &data->desc[0];
2182         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2183             sizeof(struct scsi_range_desc);
2184         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2185         list->ctsio = ctsio;
2186         list->lun = lun;
2187         mtx_lock(&lun->lun_lock);
2188         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2189         if (tlist != NULL && !tlist->completed) {
2190                 mtx_unlock(&lun->lun_lock);
2191                 free(list, M_CTL);
2192                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2193                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2194                     /*bit*/ 0);
2195                 goto done;
2196         }
2197         if (tlist != NULL) {
2198                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2199                 free(tlist, M_CTL);
2200         }
2201         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2202         mtx_unlock(&lun->lun_lock);
2203
2204         /* Block device zero ROD token -> no token. */
2205         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2206                 tpc_process(list);
2207                 return (CTL_RETVAL_COMPLETE);
2208         }
2209
2210         mtx_lock(&softc->tpc_lock);
2211         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2212                 if (memcmp(token->token, data->rod_token,
2213                     sizeof(data->rod_token)) == 0)
2214                         break;
2215         }
2216         if (token != NULL) {
2217                 token->active++;
2218                 list->token = token;
2219                 if (data->flags & EC_WUT_DEL_TKN)
2220                         token->timeout = 0;
2221         }
2222         mtx_unlock(&softc->tpc_lock);
2223         if (token == NULL) {
2224                 mtx_lock(&lun->lun_lock);
2225                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2226                 mtx_unlock(&lun->lun_lock);
2227                 free(list, M_CTL);
2228                 ctl_set_sense(ctsio, /*current_error*/ 1,
2229                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2230                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2231                 goto done;
2232         }
2233
2234         tpc_process(list);
2235         return (CTL_RETVAL_COMPLETE);
2236
2237 done:
2238         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2239                 free(ctsio->kern_data_ptr, M_CTL);
2240                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2241         }
2242         ctl_done((union ctl_io *)ctsio);
2243         return (CTL_RETVAL_COMPLETE);
2244 }
2245
2246 int
2247 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2248 {
2249         struct ctl_lun *lun;
2250         struct scsi_receive_rod_token_information *cdb;
2251         struct scsi_receive_copy_status_lid4_data *data;
2252         struct tpc_list *list;
2253         struct tpc_list list_copy;
2254         uint8_t *ptr;
2255         int retval;
2256         int alloc_len, total_len, token_len;
2257         uint32_t list_id;
2258
2259         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2260
2261         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2262         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2263
2264         retval = CTL_RETVAL_COMPLETE;
2265
2266         list_id = scsi_4btoul(cdb->list_identifier);
2267         mtx_lock(&lun->lun_lock);
2268         list = tpc_find_list(lun, list_id,
2269             ctl_get_initindex(&ctsio->io_hdr.nexus));
2270         if (list == NULL) {
2271                 mtx_unlock(&lun->lun_lock);
2272                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2273                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2274                     /*bit*/ 0);
2275                 ctl_done((union ctl_io *)ctsio);
2276                 return (retval);
2277         }
2278         list_copy = *list;
2279         if (list->completed) {
2280                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2281                 free(list, M_CTL);
2282         }
2283         mtx_unlock(&lun->lun_lock);
2284
2285         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2286         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2287         alloc_len = scsi_4btoul(cdb->length);
2288
2289         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2290
2291         ctsio->kern_sg_entries = 0;
2292
2293         if (total_len < alloc_len) {
2294                 ctsio->residual = alloc_len - total_len;
2295                 ctsio->kern_data_len = total_len;
2296                 ctsio->kern_total_len = total_len;
2297         } else {
2298                 ctsio->residual = 0;
2299                 ctsio->kern_data_len = alloc_len;
2300                 ctsio->kern_total_len = alloc_len;
2301         }
2302         ctsio->kern_data_resid = 0;
2303         ctsio->kern_rel_offset = 0;
2304
2305         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2306         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2307             4 + token_len, data->available_data);
2308         data->response_to_service_action = list_copy.service_action;
2309         if (list_copy.completed) {
2310                 if (list_copy.error)
2311                         data->copy_command_status = RCS_CCS_ERROR;
2312                 else if (list_copy.abort)
2313                         data->copy_command_status = RCS_CCS_ABORTED;
2314                 else
2315                         data->copy_command_status = RCS_CCS_COMPLETED;
2316         } else
2317                 data->copy_command_status = RCS_CCS_INPROG_FG;
2318         scsi_ulto2b(list_copy.curops, data->operation_counter);
2319         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2320         data->transfer_count_units = RCS_TC_LBAS;
2321         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2322         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2323         data->length_of_the_sense_data_field = list_copy.sense_len;
2324         data->sense_data_length = list_copy.sense_len;
2325         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2326
2327         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2328         scsi_ulto4b(token_len, &ptr[0]);
2329         if (list_copy.res_token_valid) {
2330                 scsi_ulto2b(0, &ptr[4]);
2331                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2332         }
2333 /*
2334         printf("RRTI(list=%u) valid=%d\n",
2335             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2336 */
2337         ctl_set_success(ctsio);
2338         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2339         ctsio->be_move_done = ctl_config_move_done;
2340         ctl_datamove((union ctl_io *)ctsio);
2341         return (retval);
2342 }
2343
2344 int
2345 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2346 {
2347         struct ctl_softc *softc;
2348         struct ctl_lun *lun;
2349         struct scsi_report_all_rod_tokens *cdb;
2350         struct scsi_report_all_rod_tokens_data *data;
2351         struct tpc_token *token;
2352         int retval;
2353         int alloc_len, total_len, tokens, i;
2354
2355         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2356
2357         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2358         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2359         softc = lun->ctl_softc;
2360
2361         retval = CTL_RETVAL_COMPLETE;
2362
2363         tokens = 0;
2364         mtx_lock(&softc->tpc_lock);
2365         TAILQ_FOREACH(token, &softc->tpc_tokens, links)
2366                 tokens++;
2367         mtx_unlock(&softc->tpc_lock);
2368         if (tokens > 512)
2369                 tokens = 512;
2370
2371         total_len = sizeof(*data) + tokens * 96;
2372         alloc_len = scsi_4btoul(cdb->length);
2373
2374         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2375
2376         ctsio->kern_sg_entries = 0;
2377
2378         if (total_len < alloc_len) {
2379                 ctsio->residual = alloc_len - total_len;
2380                 ctsio->kern_data_len = total_len;
2381                 ctsio->kern_total_len = total_len;
2382         } else {
2383                 ctsio->residual = 0;
2384                 ctsio->kern_data_len = alloc_len;
2385                 ctsio->kern_total_len = alloc_len;
2386         }
2387         ctsio->kern_data_resid = 0;
2388         ctsio->kern_rel_offset = 0;
2389
2390         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2391         i = 0;
2392         mtx_lock(&softc->tpc_lock);
2393         TAILQ_FOREACH(token, &softc->tpc_tokens, links) {
2394                 if (i >= tokens)
2395                         break;
2396                 memcpy(&data->rod_management_token_list[i * 96],
2397                     token->token, 96);
2398                 i++;
2399         }
2400         mtx_unlock(&softc->tpc_lock);
2401         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2402 /*
2403         printf("RART tokens=%d\n", i);
2404 */
2405         ctl_set_success(ctsio);
2406         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2407         ctsio->be_move_done = ctl_config_move_done;
2408         ctl_datamove((union ctl_io *)ctsio);
2409         return (retval);
2410 }
2411