]> CyberLeo.Net >> Repos - FreeBSD/stable/10.git/blob - sys/cam/ctl/ctl_tpc.c
MFC r274962: Replace home-grown CTL IO allocator with UMA.
[FreeBSD/stable/10.git] / sys / cam / ctl / ctl_tpc.c
1 /*-
2  * Copyright (c) 2014 Alexander Motin <mav@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/types.h>
34 #include <sys/lock.h>
35 #include <sys/module.h>
36 #include <sys/mutex.h>
37 #include <sys/condvar.h>
38 #include <sys/malloc.h>
39 #include <sys/conf.h>
40 #include <sys/queue.h>
41 #include <sys/sysctl.h>
42 #include <machine/atomic.h>
43
44 #include <cam/cam.h>
45 #include <cam/scsi/scsi_all.h>
46 #include <cam/scsi/scsi_da.h>
47 #include <cam/ctl/ctl_io.h>
48 #include <cam/ctl/ctl.h>
49 #include <cam/ctl/ctl_frontend.h>
50 #include <cam/ctl/ctl_frontend_internal.h>
51 #include <cam/ctl/ctl_util.h>
52 #include <cam/ctl/ctl_backend.h>
53 #include <cam/ctl/ctl_ioctl.h>
54 #include <cam/ctl/ctl_ha.h>
55 #include <cam/ctl/ctl_private.h>
56 #include <cam/ctl/ctl_debug.h>
57 #include <cam/ctl/ctl_scsi_all.h>
58 #include <cam/ctl/ctl_tpc.h>
59 #include <cam/ctl/ctl_error.h>
60
61 #define TPC_MAX_CSCDS   64
62 #define TPC_MAX_SEGS    64
63 #define TPC_MAX_SEG     0
64 #define TPC_MAX_LIST    8192
65 #define TPC_MAX_INLINE  0
66 #define TPC_MAX_LISTS   255
67 #define TPC_MAX_IO_SIZE (1024 * 1024)
68 #define TPC_MAX_IOCHUNK_SIZE    (TPC_MAX_IO_SIZE * 16)
69 #define TPC_MIN_TOKEN_TIMEOUT   1
70 #define TPC_DFL_TOKEN_TIMEOUT   60
71 #define TPC_MAX_TOKEN_TIMEOUT   600
72
73 MALLOC_DEFINE(M_CTL_TPC, "ctltpc", "CTL TPC");
74
75 typedef enum {
76         TPC_ERR_RETRY           = 0x000,
77         TPC_ERR_FAIL            = 0x001,
78         TPC_ERR_MASK            = 0x0ff,
79         TPC_ERR_NO_DECREMENT    = 0x100
80 } tpc_error_action;
81
82 struct tpc_list;
83 TAILQ_HEAD(runl, tpc_io);
84 struct tpc_io {
85         union ctl_io            *io;
86         uint64_t                 lun;
87         struct tpc_list         *list;
88         struct runl              run;
89         TAILQ_ENTRY(tpc_io)      rlinks;
90         TAILQ_ENTRY(tpc_io)      links;
91 };
92
93 struct tpc_token {
94         uint8_t                  token[512];
95         uint64_t                 lun;
96         uint32_t                 blocksize;
97         uint8_t                 *params;
98         struct scsi_range_desc  *range;
99         int                      nrange;
100         int                      active;
101         time_t                   last_active;
102         uint32_t                 timeout;
103         TAILQ_ENTRY(tpc_token)   links;
104 };
105
106 struct tpc_list {
107         uint8_t                  service_action;
108         int                      init_port;
109         uint32_t                 init_idx;
110         uint32_t                 list_id;
111         uint8_t                  flags;
112         uint8_t                 *params;
113         struct scsi_ec_cscd     *cscd;
114         struct scsi_ec_segment  *seg[TPC_MAX_SEGS];
115         uint8_t                 *inl;
116         int                      ncscd;
117         int                      nseg;
118         int                      leninl;
119         struct tpc_token        *token;
120         struct scsi_range_desc  *range;
121         int                      nrange;
122         off_t                    offset_into_rod;
123
124         int                      curseg;
125         off_t                    cursectors;
126         off_t                    curbytes;
127         int                      curops;
128         int                      stage;
129         uint8_t                 *buf;
130         off_t                    segsectors;
131         off_t                    segbytes;
132         int                      tbdio;
133         int                      error;
134         int                      abort;
135         int                      completed;
136         time_t                   last_active;
137         TAILQ_HEAD(, tpc_io)     allio;
138         struct scsi_sense_data   sense_data;
139         uint8_t                  sense_len;
140         uint8_t                  scsi_status;
141         struct ctl_scsiio       *ctsio;
142         struct ctl_lun          *lun;
143         int                      res_token_valid;
144         uint8_t                  res_token[512];
145         TAILQ_ENTRY(tpc_list)    links;
146 };
147
148 extern struct ctl_softc *control_softc;
149
150 static void
151 tpc_timeout(void *arg)
152 {
153         struct ctl_softc *softc = arg;
154         struct ctl_lun *lun;
155         struct tpc_token *token, *ttoken;
156         struct tpc_list *list, *tlist;
157
158         /* Free completed lists with expired timeout. */
159         STAILQ_FOREACH(lun, &softc->lun_list, links) {
160                 mtx_lock(&lun->lun_lock);
161                 TAILQ_FOREACH_SAFE(list, &lun->tpc_lists, links, tlist) {
162                         if (!list->completed || time_uptime < list->last_active +
163                             TPC_DFL_TOKEN_TIMEOUT)
164                                 continue;
165                         TAILQ_REMOVE(&lun->tpc_lists, list, links);
166                         free(list, M_CTL);
167                 }
168                 mtx_unlock(&lun->lun_lock);
169         }
170
171         /* Free inactive ROD tokens with expired timeout. */
172         TAILQ_FOREACH_SAFE(token, &softc->tpc_tokens, links, ttoken) {
173                 if (token->active ||
174                     time_uptime < token->last_active + token->timeout + 1)
175                         continue;
176                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
177                 free(token->params, M_CTL);
178                 free(token, M_CTL);
179         }
180         callout_schedule(&softc->tpc_timeout, hz);
181 }
182
183 void
184 ctl_tpc_init(struct ctl_softc *softc)
185 {
186
187         TAILQ_INIT(&softc->tpc_tokens);
188         callout_init_mtx(&softc->tpc_timeout, &softc->ctl_lock, 0);
189         callout_reset(&softc->tpc_timeout, hz, tpc_timeout, softc);
190 }
191
192 void
193 ctl_tpc_shutdown(struct ctl_softc *softc)
194 {
195         struct tpc_token *token;
196
197         callout_drain(&softc->tpc_timeout);
198
199         /* Free ROD tokens. */
200         mtx_lock(&softc->ctl_lock);
201         while ((token = TAILQ_FIRST(&softc->tpc_tokens)) != NULL) {
202                 TAILQ_REMOVE(&softc->tpc_tokens, token, links);
203                 free(token->params, M_CTL);
204                 free(token, M_CTL);
205         }
206         mtx_unlock(&softc->ctl_lock);
207 }
208
209 void
210 ctl_tpc_lun_init(struct ctl_lun *lun)
211 {
212
213         TAILQ_INIT(&lun->tpc_lists);
214 }
215
216 void
217 ctl_tpc_lun_shutdown(struct ctl_lun *lun)
218 {
219         struct tpc_list *list;
220         struct tpc_token *token, *ttoken;
221
222         /* Free lists for this LUN. */
223         while ((list = TAILQ_FIRST(&lun->tpc_lists)) != NULL) {
224                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
225                 KASSERT(list->completed,
226                     ("Not completed TPC (%p) on shutdown", list));
227                 free(list, M_CTL);
228         }
229
230         /* Free ROD tokens for this LUN. */
231         mtx_assert(&control_softc->ctl_lock, MA_OWNED);
232         TAILQ_FOREACH_SAFE(token, &control_softc->tpc_tokens, links, ttoken) {
233                 if (token->lun != lun->lun || token->active)
234                         continue;
235                 TAILQ_REMOVE(&control_softc->tpc_tokens, token, links);
236                 free(token->params, M_CTL);
237                 free(token, M_CTL);
238         }
239 }
240
241 int
242 ctl_inquiry_evpd_tpc(struct ctl_scsiio *ctsio, int alloc_len)
243 {
244         struct scsi_vpd_tpc *tpc_ptr;
245         struct scsi_vpd_tpc_descriptor *d_ptr;
246         struct scsi_vpd_tpc_descriptor_bdrl *bdrl_ptr;
247         struct scsi_vpd_tpc_descriptor_sc *sc_ptr;
248         struct scsi_vpd_tpc_descriptor_sc_descr *scd_ptr;
249         struct scsi_vpd_tpc_descriptor_pd *pd_ptr;
250         struct scsi_vpd_tpc_descriptor_sd *sd_ptr;
251         struct scsi_vpd_tpc_descriptor_sdid *sdid_ptr;
252         struct scsi_vpd_tpc_descriptor_rtf *rtf_ptr;
253         struct scsi_vpd_tpc_descriptor_rtf_block *rtfb_ptr;
254         struct scsi_vpd_tpc_descriptor_srt *srt_ptr;
255         struct scsi_vpd_tpc_descriptor_srtd *srtd_ptr;
256         struct scsi_vpd_tpc_descriptor_gco *gco_ptr;
257         struct ctl_lun *lun;
258         int data_len;
259
260         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
261
262         data_len = sizeof(struct scsi_vpd_tpc) +
263             sizeof(struct scsi_vpd_tpc_descriptor_bdrl) +
264             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sc) +
265              2 * sizeof(struct scsi_vpd_tpc_descriptor_sc_descr) + 11, 4) +
266             sizeof(struct scsi_vpd_tpc_descriptor_pd) +
267             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sd) + 4, 4) +
268             roundup2(sizeof(struct scsi_vpd_tpc_descriptor_sdid) + 2, 4) +
269             sizeof(struct scsi_vpd_tpc_descriptor_rtf) +
270              sizeof(struct scsi_vpd_tpc_descriptor_rtf_block) +
271             sizeof(struct scsi_vpd_tpc_descriptor_srt) +
272              2*sizeof(struct scsi_vpd_tpc_descriptor_srtd) +
273             sizeof(struct scsi_vpd_tpc_descriptor_gco);
274
275         ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
276         tpc_ptr = (struct scsi_vpd_tpc *)ctsio->kern_data_ptr;
277         ctsio->kern_sg_entries = 0;
278
279         if (data_len < alloc_len) {
280                 ctsio->residual = alloc_len - data_len;
281                 ctsio->kern_data_len = data_len;
282                 ctsio->kern_total_len = data_len;
283         } else {
284                 ctsio->residual = 0;
285                 ctsio->kern_data_len = alloc_len;
286                 ctsio->kern_total_len = alloc_len;
287         }
288         ctsio->kern_data_resid = 0;
289         ctsio->kern_rel_offset = 0;
290         ctsio->kern_sg_entries = 0;
291
292         /*
293          * The control device is always connected.  The disk device, on the
294          * other hand, may not be online all the time.
295          */
296         if (lun != NULL)
297                 tpc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
298                                      lun->be_lun->lun_type;
299         else
300                 tpc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
301         tpc_ptr->page_code = SVPD_SCSI_TPC;
302         scsi_ulto2b(data_len - 4, tpc_ptr->page_length);
303
304         /* Block Device ROD Limits */
305         d_ptr = (struct scsi_vpd_tpc_descriptor *)&tpc_ptr->descr[0];
306         bdrl_ptr = (struct scsi_vpd_tpc_descriptor_bdrl *)d_ptr;
307         scsi_ulto2b(SVPD_TPC_BDRL, bdrl_ptr->desc_type);
308         scsi_ulto2b(sizeof(*bdrl_ptr) - 4, bdrl_ptr->desc_length);
309         scsi_ulto2b(TPC_MAX_SEGS, bdrl_ptr->maximum_ranges);
310         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
311             bdrl_ptr->maximum_inactivity_timeout);
312         scsi_ulto4b(TPC_DFL_TOKEN_TIMEOUT,
313             bdrl_ptr->default_inactivity_timeout);
314         scsi_u64to8b(0, bdrl_ptr->maximum_token_transfer_size);
315         scsi_u64to8b(0, bdrl_ptr->optimal_transfer_count);
316
317         /* Supported commands */
318         d_ptr = (struct scsi_vpd_tpc_descriptor *)
319             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
320         sc_ptr = (struct scsi_vpd_tpc_descriptor_sc *)d_ptr;
321         scsi_ulto2b(SVPD_TPC_SC, sc_ptr->desc_type);
322         sc_ptr->list_length = 2 * sizeof(*scd_ptr) + 11;
323         scsi_ulto2b(roundup2(1 + sc_ptr->list_length, 4), sc_ptr->desc_length);
324         scd_ptr = &sc_ptr->descr[0];
325         scd_ptr->opcode = EXTENDED_COPY;
326         scd_ptr->sa_length = 5;
327         scd_ptr->supported_service_actions[0] = EC_EC_LID1;
328         scd_ptr->supported_service_actions[1] = EC_EC_LID4;
329         scd_ptr->supported_service_actions[2] = EC_PT;
330         scd_ptr->supported_service_actions[3] = EC_WUT;
331         scd_ptr->supported_service_actions[4] = EC_COA;
332         scd_ptr = (struct scsi_vpd_tpc_descriptor_sc_descr *)
333             &scd_ptr->supported_service_actions[scd_ptr->sa_length];
334         scd_ptr->opcode = RECEIVE_COPY_STATUS;
335         scd_ptr->sa_length = 6;
336         scd_ptr->supported_service_actions[0] = RCS_RCS_LID1;
337         scd_ptr->supported_service_actions[1] = RCS_RCFD;
338         scd_ptr->supported_service_actions[2] = RCS_RCS_LID4;
339         scd_ptr->supported_service_actions[3] = RCS_RCOP;
340         scd_ptr->supported_service_actions[4] = RCS_RRTI;
341         scd_ptr->supported_service_actions[5] = RCS_RART;
342
343         /* Parameter data. */
344         d_ptr = (struct scsi_vpd_tpc_descriptor *)
345             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
346         pd_ptr = (struct scsi_vpd_tpc_descriptor_pd *)d_ptr;
347         scsi_ulto2b(SVPD_TPC_PD, pd_ptr->desc_type);
348         scsi_ulto2b(sizeof(*pd_ptr) - 4, pd_ptr->desc_length);
349         scsi_ulto2b(TPC_MAX_CSCDS, pd_ptr->maximum_cscd_descriptor_count);
350         scsi_ulto2b(TPC_MAX_SEGS, pd_ptr->maximum_segment_descriptor_count);
351         scsi_ulto4b(TPC_MAX_LIST, pd_ptr->maximum_descriptor_list_length);
352         scsi_ulto4b(TPC_MAX_INLINE, pd_ptr->maximum_inline_data_length);
353
354         /* Supported Descriptors */
355         d_ptr = (struct scsi_vpd_tpc_descriptor *)
356             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
357         sd_ptr = (struct scsi_vpd_tpc_descriptor_sd *)d_ptr;
358         scsi_ulto2b(SVPD_TPC_SD, sd_ptr->desc_type);
359         scsi_ulto2b(roundup2(sizeof(*sd_ptr) - 4 + 4, 4), sd_ptr->desc_length);
360         sd_ptr->list_length = 4;
361         sd_ptr->supported_descriptor_codes[0] = EC_SEG_B2B;
362         sd_ptr->supported_descriptor_codes[1] = EC_SEG_VERIFY;
363         sd_ptr->supported_descriptor_codes[2] = EC_SEG_REGISTER_KEY;
364         sd_ptr->supported_descriptor_codes[3] = EC_CSCD_ID;
365
366         /* Supported CSCD Descriptor IDs */
367         d_ptr = (struct scsi_vpd_tpc_descriptor *)
368             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
369         sdid_ptr = (struct scsi_vpd_tpc_descriptor_sdid *)d_ptr;
370         scsi_ulto2b(SVPD_TPC_SDID, sdid_ptr->desc_type);
371         scsi_ulto2b(roundup2(sizeof(*sdid_ptr) - 4 + 2, 4), sdid_ptr->desc_length);
372         scsi_ulto2b(2, sdid_ptr->list_length);
373         scsi_ulto2b(0xffff, &sdid_ptr->supported_descriptor_ids[0]);
374
375         /* ROD Token Features */
376         d_ptr = (struct scsi_vpd_tpc_descriptor *)
377             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
378         rtf_ptr = (struct scsi_vpd_tpc_descriptor_rtf *)d_ptr;
379         scsi_ulto2b(SVPD_TPC_RTF, rtf_ptr->desc_type);
380         scsi_ulto2b(sizeof(*rtf_ptr) - 4 + sizeof(*rtfb_ptr), rtf_ptr->desc_length);
381         rtf_ptr->remote_tokens = 0;
382         scsi_ulto4b(TPC_MIN_TOKEN_TIMEOUT, rtf_ptr->minimum_token_lifetime);
383         scsi_ulto4b(UINT32_MAX, rtf_ptr->maximum_token_lifetime);
384         scsi_ulto4b(TPC_MAX_TOKEN_TIMEOUT,
385             rtf_ptr->maximum_token_inactivity_timeout);
386         scsi_ulto2b(sizeof(*rtfb_ptr), rtf_ptr->type_specific_features_length);
387         rtfb_ptr = (struct scsi_vpd_tpc_descriptor_rtf_block *)
388             &rtf_ptr->type_specific_features;
389         rtfb_ptr->type_format = SVPD_TPC_RTF_BLOCK;
390         scsi_ulto2b(sizeof(*rtfb_ptr) - 4, rtfb_ptr->desc_length);
391         scsi_ulto2b(0, rtfb_ptr->optimal_length_granularity);
392         scsi_u64to8b(0, rtfb_ptr->maximum_bytes);
393         scsi_u64to8b(0, rtfb_ptr->optimal_bytes);
394         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
395             rtfb_ptr->optimal_bytes_to_token_per_segment);
396         scsi_u64to8b(TPC_MAX_IOCHUNK_SIZE,
397             rtfb_ptr->optimal_bytes_from_token_per_segment);
398
399         /* Supported ROD Tokens */
400         d_ptr = (struct scsi_vpd_tpc_descriptor *)
401             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
402         srt_ptr = (struct scsi_vpd_tpc_descriptor_srt *)d_ptr;
403         scsi_ulto2b(SVPD_TPC_SRT, srt_ptr->desc_type);
404         scsi_ulto2b(sizeof(*srt_ptr) - 4 + 2*sizeof(*srtd_ptr), srt_ptr->desc_length);
405         scsi_ulto2b(2*sizeof(*srtd_ptr), srt_ptr->rod_type_descriptors_length);
406         srtd_ptr = (struct scsi_vpd_tpc_descriptor_srtd *)
407             &srt_ptr->rod_type_descriptors;
408         scsi_ulto4b(ROD_TYPE_AUR, srtd_ptr->rod_type);
409         srtd_ptr->flags = SVPD_TPC_SRTD_TIN | SVPD_TPC_SRTD_TOUT;
410         scsi_ulto2b(0, srtd_ptr->preference_indicator);
411         srtd_ptr++;
412         scsi_ulto4b(ROD_TYPE_BLOCK_ZERO, srtd_ptr->rod_type);
413         srtd_ptr->flags = SVPD_TPC_SRTD_TIN;
414         scsi_ulto2b(0, srtd_ptr->preference_indicator);
415
416         /* General Copy Operations */
417         d_ptr = (struct scsi_vpd_tpc_descriptor *)
418             (&d_ptr->parameters[0] + scsi_2btoul(d_ptr->desc_length));
419         gco_ptr = (struct scsi_vpd_tpc_descriptor_gco *)d_ptr;
420         scsi_ulto2b(SVPD_TPC_GCO, gco_ptr->desc_type);
421         scsi_ulto2b(sizeof(*gco_ptr) - 4, gco_ptr->desc_length);
422         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->total_concurrent_copies);
423         scsi_ulto4b(TPC_MAX_LISTS, gco_ptr->maximum_identified_concurrent_copies);
424         scsi_ulto4b(TPC_MAX_SEG, gco_ptr->maximum_segment_length);
425         gco_ptr->data_segment_granularity = 0;
426         gco_ptr->inline_data_granularity = 0;
427
428         ctsio->scsi_status = SCSI_STATUS_OK;
429         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
430         ctsio->be_move_done = ctl_config_move_done;
431         ctl_datamove((union ctl_io *)ctsio);
432
433         return (CTL_RETVAL_COMPLETE);
434 }
435
436 int
437 ctl_receive_copy_operating_parameters(struct ctl_scsiio *ctsio)
438 {
439         struct scsi_receive_copy_operating_parameters *cdb;
440         struct scsi_receive_copy_operating_parameters_data *data;
441         int retval;
442         int alloc_len, total_len;
443
444         CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n"));
445
446         cdb = (struct scsi_receive_copy_operating_parameters *)ctsio->cdb;
447
448         retval = CTL_RETVAL_COMPLETE;
449
450         total_len = sizeof(*data) + 4;
451         alloc_len = scsi_4btoul(cdb->length);
452
453         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
454
455         ctsio->kern_sg_entries = 0;
456
457         if (total_len < alloc_len) {
458                 ctsio->residual = alloc_len - total_len;
459                 ctsio->kern_data_len = total_len;
460                 ctsio->kern_total_len = total_len;
461         } else {
462                 ctsio->residual = 0;
463                 ctsio->kern_data_len = alloc_len;
464                 ctsio->kern_total_len = alloc_len;
465         }
466         ctsio->kern_data_resid = 0;
467         ctsio->kern_rel_offset = 0;
468
469         data = (struct scsi_receive_copy_operating_parameters_data *)ctsio->kern_data_ptr;
470         scsi_ulto4b(sizeof(*data) - 4 + 4, data->length);
471         data->snlid = RCOP_SNLID;
472         scsi_ulto2b(TPC_MAX_CSCDS, data->maximum_cscd_descriptor_count);
473         scsi_ulto2b(TPC_MAX_SEGS, data->maximum_segment_descriptor_count);
474         scsi_ulto4b(TPC_MAX_LIST, data->maximum_descriptor_list_length);
475         scsi_ulto4b(TPC_MAX_SEG, data->maximum_segment_length);
476         scsi_ulto4b(TPC_MAX_INLINE, data->maximum_inline_data_length);
477         scsi_ulto4b(0, data->held_data_limit);
478         scsi_ulto4b(0, data->maximum_stream_device_transfer_size);
479         scsi_ulto2b(TPC_MAX_LISTS, data->total_concurrent_copies);
480         data->maximum_concurrent_copies = TPC_MAX_LISTS;
481         data->data_segment_granularity = 0;
482         data->inline_data_granularity = 0;
483         data->held_data_granularity = 0;
484         data->implemented_descriptor_list_length = 4;
485         data->list_of_implemented_descriptor_type_codes[0] = EC_SEG_B2B;
486         data->list_of_implemented_descriptor_type_codes[1] = EC_SEG_VERIFY;
487         data->list_of_implemented_descriptor_type_codes[2] = EC_SEG_REGISTER_KEY;
488         data->list_of_implemented_descriptor_type_codes[3] = EC_CSCD_ID;
489
490         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
491         ctsio->be_move_done = ctl_config_move_done;
492
493         ctl_datamove((union ctl_io *)ctsio);
494         return (retval);
495 }
496
497 static struct tpc_list *
498 tpc_find_list(struct ctl_lun *lun, uint32_t list_id, uint32_t init_idx)
499 {
500         struct tpc_list *list;
501
502         mtx_assert(&lun->lun_lock, MA_OWNED);
503         TAILQ_FOREACH(list, &lun->tpc_lists, links) {
504                 if ((list->flags & EC_LIST_ID_USAGE_MASK) !=
505                      EC_LIST_ID_USAGE_NONE && list->list_id == list_id &&
506                     list->init_idx == init_idx)
507                         break;
508         }
509         return (list);
510 }
511
512 int
513 ctl_receive_copy_status_lid1(struct ctl_scsiio *ctsio)
514 {
515         struct ctl_lun *lun;
516         struct scsi_receive_copy_status_lid1 *cdb;
517         struct scsi_receive_copy_status_lid1_data *data;
518         struct tpc_list *list;
519         struct tpc_list list_copy;
520         int retval;
521         int alloc_len, total_len;
522         uint32_t list_id;
523
524         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid1\n"));
525
526         cdb = (struct scsi_receive_copy_status_lid1 *)ctsio->cdb;
527         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
528
529         retval = CTL_RETVAL_COMPLETE;
530
531         list_id = cdb->list_identifier;
532         mtx_lock(&lun->lun_lock);
533         list = tpc_find_list(lun, list_id,
534             ctl_get_resindex(&ctsio->io_hdr.nexus));
535         if (list == NULL) {
536                 mtx_unlock(&lun->lun_lock);
537                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
538                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
539                     /*bit*/ 0);
540                 ctl_done((union ctl_io *)ctsio);
541                 return (retval);
542         }
543         list_copy = *list;
544         if (list->completed) {
545                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
546                 free(list, M_CTL);
547         }
548         mtx_unlock(&lun->lun_lock);
549
550         total_len = sizeof(*data);
551         alloc_len = scsi_4btoul(cdb->length);
552
553         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
554
555         ctsio->kern_sg_entries = 0;
556
557         if (total_len < alloc_len) {
558                 ctsio->residual = alloc_len - total_len;
559                 ctsio->kern_data_len = total_len;
560                 ctsio->kern_total_len = total_len;
561         } else {
562                 ctsio->residual = 0;
563                 ctsio->kern_data_len = alloc_len;
564                 ctsio->kern_total_len = alloc_len;
565         }
566         ctsio->kern_data_resid = 0;
567         ctsio->kern_rel_offset = 0;
568
569         data = (struct scsi_receive_copy_status_lid1_data *)ctsio->kern_data_ptr;
570         scsi_ulto4b(sizeof(*data) - 4, data->available_data);
571         if (list_copy.completed) {
572                 if (list_copy.error || list_copy.abort)
573                         data->copy_command_status = RCS_CCS_ERROR;
574                 else
575                         data->copy_command_status = RCS_CCS_COMPLETED;
576         } else
577                 data->copy_command_status = RCS_CCS_INPROG;
578         scsi_ulto2b(list_copy.curseg, data->segments_processed);
579         if (list_copy.curbytes <= UINT32_MAX) {
580                 data->transfer_count_units = RCS_TC_BYTES;
581                 scsi_ulto4b(list_copy.curbytes, data->transfer_count);
582         } else {
583                 data->transfer_count_units = RCS_TC_MBYTES;
584                 scsi_ulto4b(list_copy.curbytes >> 20, data->transfer_count);
585         }
586
587         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
588         ctsio->be_move_done = ctl_config_move_done;
589
590         ctl_datamove((union ctl_io *)ctsio);
591         return (retval);
592 }
593
594 int
595 ctl_receive_copy_failure_details(struct ctl_scsiio *ctsio)
596 {
597         struct ctl_lun *lun;
598         struct scsi_receive_copy_failure_details *cdb;
599         struct scsi_receive_copy_failure_details_data *data;
600         struct tpc_list *list;
601         struct tpc_list list_copy;
602         int retval;
603         int alloc_len, total_len;
604         uint32_t list_id;
605
606         CTL_DEBUG_PRINT(("ctl_receive_copy_failure_details\n"));
607
608         cdb = (struct scsi_receive_copy_failure_details *)ctsio->cdb;
609         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
610
611         retval = CTL_RETVAL_COMPLETE;
612
613         list_id = cdb->list_identifier;
614         mtx_lock(&lun->lun_lock);
615         list = tpc_find_list(lun, list_id,
616             ctl_get_resindex(&ctsio->io_hdr.nexus));
617         if (list == NULL || !list->completed) {
618                 mtx_unlock(&lun->lun_lock);
619                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
620                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
621                     /*bit*/ 0);
622                 ctl_done((union ctl_io *)ctsio);
623                 return (retval);
624         }
625         list_copy = *list;
626         TAILQ_REMOVE(&lun->tpc_lists, list, links);
627         free(list, M_CTL);
628         mtx_unlock(&lun->lun_lock);
629
630         total_len = sizeof(*data) + list_copy.sense_len;
631         alloc_len = scsi_4btoul(cdb->length);
632
633         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
634
635         ctsio->kern_sg_entries = 0;
636
637         if (total_len < alloc_len) {
638                 ctsio->residual = alloc_len - total_len;
639                 ctsio->kern_data_len = total_len;
640                 ctsio->kern_total_len = total_len;
641         } else {
642                 ctsio->residual = 0;
643                 ctsio->kern_data_len = alloc_len;
644                 ctsio->kern_total_len = alloc_len;
645         }
646         ctsio->kern_data_resid = 0;
647         ctsio->kern_rel_offset = 0;
648
649         data = (struct scsi_receive_copy_failure_details_data *)ctsio->kern_data_ptr;
650         if (list_copy.completed && (list_copy.error || list_copy.abort)) {
651                 scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
652                     data->available_data);
653                 data->copy_command_status = RCS_CCS_ERROR;
654         } else
655                 scsi_ulto4b(0, data->available_data);
656         scsi_ulto2b(list_copy.sense_len, data->sense_data_length);
657         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
658
659         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
660         ctsio->be_move_done = ctl_config_move_done;
661
662         ctl_datamove((union ctl_io *)ctsio);
663         return (retval);
664 }
665
666 int
667 ctl_receive_copy_status_lid4(struct ctl_scsiio *ctsio)
668 {
669         struct ctl_lun *lun;
670         struct scsi_receive_copy_status_lid4 *cdb;
671         struct scsi_receive_copy_status_lid4_data *data;
672         struct tpc_list *list;
673         struct tpc_list list_copy;
674         int retval;
675         int alloc_len, total_len;
676         uint32_t list_id;
677
678         CTL_DEBUG_PRINT(("ctl_receive_copy_status_lid4\n"));
679
680         cdb = (struct scsi_receive_copy_status_lid4 *)ctsio->cdb;
681         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
682
683         retval = CTL_RETVAL_COMPLETE;
684
685         list_id = scsi_4btoul(cdb->list_identifier);
686         mtx_lock(&lun->lun_lock);
687         list = tpc_find_list(lun, list_id,
688             ctl_get_resindex(&ctsio->io_hdr.nexus));
689         if (list == NULL) {
690                 mtx_unlock(&lun->lun_lock);
691                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
692                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
693                     /*bit*/ 0);
694                 ctl_done((union ctl_io *)ctsio);
695                 return (retval);
696         }
697         list_copy = *list;
698         if (list->completed) {
699                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
700                 free(list, M_CTL);
701         }
702         mtx_unlock(&lun->lun_lock);
703
704         total_len = sizeof(*data) + list_copy.sense_len;
705         alloc_len = scsi_4btoul(cdb->length);
706
707         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
708
709         ctsio->kern_sg_entries = 0;
710
711         if (total_len < alloc_len) {
712                 ctsio->residual = alloc_len - total_len;
713                 ctsio->kern_data_len = total_len;
714                 ctsio->kern_total_len = total_len;
715         } else {
716                 ctsio->residual = 0;
717                 ctsio->kern_data_len = alloc_len;
718                 ctsio->kern_total_len = alloc_len;
719         }
720         ctsio->kern_data_resid = 0;
721         ctsio->kern_rel_offset = 0;
722
723         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
724         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len,
725             data->available_data);
726         data->response_to_service_action = list_copy.service_action;
727         if (list_copy.completed) {
728                 if (list_copy.error)
729                         data->copy_command_status = RCS_CCS_ERROR;
730                 else if (list_copy.abort)
731                         data->copy_command_status = RCS_CCS_ABORTED;
732                 else
733                         data->copy_command_status = RCS_CCS_COMPLETED;
734         } else
735                 data->copy_command_status = RCS_CCS_INPROG_FG;
736         scsi_ulto2b(list_copy.curops, data->operation_counter);
737         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
738         data->transfer_count_units = RCS_TC_BYTES;
739         scsi_u64to8b(list_copy.curbytes, data->transfer_count);
740         scsi_ulto2b(list_copy.curseg, data->segments_processed);
741         data->length_of_the_sense_data_field = list_copy.sense_len;
742         data->sense_data_length = list_copy.sense_len;
743         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
744
745         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
746         ctsio->be_move_done = ctl_config_move_done;
747
748         ctl_datamove((union ctl_io *)ctsio);
749         return (retval);
750 }
751
752 int
753 ctl_copy_operation_abort(struct ctl_scsiio *ctsio)
754 {
755         struct ctl_lun *lun;
756         struct scsi_copy_operation_abort *cdb;
757         struct tpc_list *list;
758         int retval;
759         uint32_t list_id;
760
761         CTL_DEBUG_PRINT(("ctl_copy_operation_abort\n"));
762
763         cdb = (struct scsi_copy_operation_abort *)ctsio->cdb;
764         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
765
766         retval = CTL_RETVAL_COMPLETE;
767
768         list_id = scsi_4btoul(cdb->list_identifier);
769         mtx_lock(&lun->lun_lock);
770         list = tpc_find_list(lun, list_id,
771             ctl_get_resindex(&ctsio->io_hdr.nexus));
772         if (list == NULL) {
773                 mtx_unlock(&lun->lun_lock);
774                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
775                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
776                     /*bit*/ 0);
777                 ctl_done((union ctl_io *)ctsio);
778                 return (retval);
779         }
780         list->abort = 1;
781         mtx_unlock(&lun->lun_lock);
782
783         ctl_set_success(ctsio);
784         ctl_done((union ctl_io *)ctsio);
785         return (retval);
786 }
787
788 static uint64_t
789 tpc_resolve(struct tpc_list *list, uint16_t idx, uint32_t *ss)
790 {
791
792         if (idx == 0xffff) {
793                 if (ss && list->lun->be_lun)
794                         *ss = list->lun->be_lun->blocksize;
795                 return (list->lun->lun);
796         }
797         if (idx >= list->ncscd)
798                 return (UINT64_MAX);
799         return (tpcl_resolve(list->init_port, &list->cscd[idx], ss));
800 }
801
802 static int
803 tpc_process_b2b(struct tpc_list *list)
804 {
805         struct scsi_ec_segment_b2b *seg;
806         struct scsi_ec_cscd_dtsp *sdstp, *ddstp;
807         struct tpc_io *tior, *tiow;
808         struct runl run, *prun;
809         uint64_t sl, dl;
810         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
811         int numlba;
812         uint32_t srcblock, dstblock;
813
814         if (list->stage == 1) {
815                 while ((tior = TAILQ_FIRST(&list->allio)) != NULL) {
816                         TAILQ_REMOVE(&list->allio, tior, links);
817                         ctl_free_io(tior->io);
818                         free(tior, M_CTL);
819                 }
820                 free(list->buf, M_CTL);
821                 if (list->abort) {
822                         ctl_set_task_aborted(list->ctsio);
823                         return (CTL_RETVAL_ERROR);
824                 } else if (list->error) {
825                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
826                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
827                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
828                         return (CTL_RETVAL_ERROR);
829                 }
830                 list->cursectors += list->segsectors;
831                 list->curbytes += list->segbytes;
832                 return (CTL_RETVAL_COMPLETE);
833         }
834
835         TAILQ_INIT(&list->allio);
836         seg = (struct scsi_ec_segment_b2b *)list->seg[list->curseg];
837         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), &srcblock);
838         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), &dstblock);
839         if (sl >= CTL_MAX_LUNS || dl >= CTL_MAX_LUNS) {
840                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
841                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
842                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
843                 return (CTL_RETVAL_ERROR);
844         }
845         sdstp = &list->cscd[scsi_2btoul(seg->src_cscd)].dtsp;
846         if (scsi_3btoul(sdstp->block_length) != 0)
847                 srcblock = scsi_3btoul(sdstp->block_length);
848         ddstp = &list->cscd[scsi_2btoul(seg->dst_cscd)].dtsp;
849         if (scsi_3btoul(ddstp->block_length) != 0)
850                 dstblock = scsi_3btoul(ddstp->block_length);
851         numlba = scsi_2btoul(seg->number_of_blocks);
852         if (seg->flags & EC_SEG_DC)
853                 numbytes = (off_t)numlba * dstblock;
854         else
855                 numbytes = (off_t)numlba * srcblock;
856         srclba = scsi_8btou64(seg->src_lba);
857         dstlba = scsi_8btou64(seg->dst_lba);
858
859 //      printf("Copy %ju bytes from %ju @ %ju to %ju @ %ju\n",
860 //          (uintmax_t)numbytes, sl, scsi_8btou64(seg->src_lba),
861 //          dl, scsi_8btou64(seg->dst_lba));
862
863         if (numbytes == 0)
864                 return (CTL_RETVAL_COMPLETE);
865
866         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
867                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
868                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
869                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
870                 return (CTL_RETVAL_ERROR);
871         }
872
873         list->buf = malloc(numbytes, M_CTL, M_WAITOK);
874         list->segbytes = numbytes;
875         list->segsectors = numbytes / dstblock;
876         donebytes = 0;
877         TAILQ_INIT(&run);
878         prun = &run;
879         list->tbdio = 1;
880         while (donebytes < numbytes) {
881                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
882
883                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
884                 TAILQ_INIT(&tior->run);
885                 tior->list = list;
886                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
887                 tior->io = tpcl_alloc_io();
888                 ctl_scsi_read_write(tior->io,
889                                     /*data_ptr*/ &list->buf[donebytes],
890                                     /*data_len*/ roundbytes,
891                                     /*read_op*/ 1,
892                                     /*byte2*/ 0,
893                                     /*minimum_cdb_size*/ 0,
894                                     /*lba*/ srclba + donebytes / srcblock,
895                                     /*num_blocks*/ roundbytes / srcblock,
896                                     /*tag_type*/ CTL_TAG_SIMPLE,
897                                     /*control*/ 0);
898                 tior->io->io_hdr.retries = 3;
899                 tior->lun = sl;
900                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
901
902                 tiow = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
903                 TAILQ_INIT(&tiow->run);
904                 tiow->list = list;
905                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
906                 tiow->io = tpcl_alloc_io();
907                 ctl_scsi_read_write(tiow->io,
908                                     /*data_ptr*/ &list->buf[donebytes],
909                                     /*data_len*/ roundbytes,
910                                     /*read_op*/ 0,
911                                     /*byte2*/ 0,
912                                     /*minimum_cdb_size*/ 0,
913                                     /*lba*/ dstlba + donebytes / dstblock,
914                                     /*num_blocks*/ roundbytes / dstblock,
915                                     /*tag_type*/ CTL_TAG_SIMPLE,
916                                     /*control*/ 0);
917                 tiow->io->io_hdr.retries = 3;
918                 tiow->lun = dl;
919                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
920
921                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
922                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
923                 prun = &tior->run;
924                 donebytes += roundbytes;
925         }
926
927         while ((tior = TAILQ_FIRST(&run)) != NULL) {
928                 TAILQ_REMOVE(&run, tior, rlinks);
929                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
930                         panic("tpcl_queue() error");
931         }
932
933         list->stage++;
934         return (CTL_RETVAL_QUEUED);
935 }
936
937 static int
938 tpc_process_verify(struct tpc_list *list)
939 {
940         struct scsi_ec_segment_verify *seg;
941         struct tpc_io *tio;
942         uint64_t sl;
943
944         if (list->stage == 1) {
945                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
946                         TAILQ_REMOVE(&list->allio, tio, links);
947                         ctl_free_io(tio->io);
948                         free(tio, M_CTL);
949                 }
950                 if (list->abort) {
951                         ctl_set_task_aborted(list->ctsio);
952                         return (CTL_RETVAL_ERROR);
953                 } else if (list->error) {
954                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
955                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
956                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
957                         return (CTL_RETVAL_ERROR);
958                 } else
959                         return (CTL_RETVAL_COMPLETE);
960         }
961
962         TAILQ_INIT(&list->allio);
963         seg = (struct scsi_ec_segment_verify *)list->seg[list->curseg];
964         sl = tpc_resolve(list, scsi_2btoul(seg->src_cscd), NULL);
965         if (sl >= CTL_MAX_LUNS) {
966                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
967                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
968                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
969                 return (CTL_RETVAL_ERROR);
970         }
971
972 //      printf("Verify %ju\n", sl);
973
974         if ((seg->tur & 0x01) == 0)
975                 return (CTL_RETVAL_COMPLETE);
976
977         list->tbdio = 1;
978         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
979         TAILQ_INIT(&tio->run);
980         tio->list = list;
981         TAILQ_INSERT_TAIL(&list->allio, tio, links);
982         tio->io = tpcl_alloc_io();
983         ctl_scsi_tur(tio->io, /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
984         tio->io->io_hdr.retries = 3;
985         tio->lun = sl;
986         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
987         list->stage++;
988         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
989                 panic("tpcl_queue() error");
990         return (CTL_RETVAL_QUEUED);
991 }
992
993 static int
994 tpc_process_register_key(struct tpc_list *list)
995 {
996         struct scsi_ec_segment_register_key *seg;
997         struct tpc_io *tio;
998         uint64_t dl;
999         int datalen;
1000
1001         if (list->stage == 1) {
1002                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1003                         TAILQ_REMOVE(&list->allio, tio, links);
1004                         ctl_free_io(tio->io);
1005                         free(tio, M_CTL);
1006                 }
1007                 free(list->buf, M_CTL);
1008                 if (list->abort) {
1009                         ctl_set_task_aborted(list->ctsio);
1010                         return (CTL_RETVAL_ERROR);
1011                 } else if (list->error) {
1012                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1013                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1014                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1015                         return (CTL_RETVAL_ERROR);
1016                 } else
1017                         return (CTL_RETVAL_COMPLETE);
1018         }
1019
1020         TAILQ_INIT(&list->allio);
1021         seg = (struct scsi_ec_segment_register_key *)list->seg[list->curseg];
1022         dl = tpc_resolve(list, scsi_2btoul(seg->dst_cscd), NULL);
1023         if (dl >= CTL_MAX_LUNS) {
1024                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1025                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1026                     /*asc*/ 0x08, /*ascq*/ 0x04, SSD_ELEM_NONE);
1027                 return (CTL_RETVAL_ERROR);
1028         }
1029
1030 //      printf("Register Key %ju\n", dl);
1031
1032         list->tbdio = 1;
1033         tio = malloc(sizeof(*tio), M_CTL, M_WAITOK | M_ZERO);
1034         TAILQ_INIT(&tio->run);
1035         tio->list = list;
1036         TAILQ_INSERT_TAIL(&list->allio, tio, links);
1037         tio->io = tpcl_alloc_io();
1038         datalen = sizeof(struct scsi_per_res_out_parms);
1039         list->buf = malloc(datalen, M_CTL, M_WAITOK);
1040         ctl_scsi_persistent_res_out(tio->io,
1041             list->buf, datalen, SPRO_REGISTER, -1,
1042             scsi_8btou64(seg->res_key), scsi_8btou64(seg->sa_res_key),
1043             /*tag_type*/ CTL_TAG_SIMPLE, /*control*/ 0);
1044         tio->io->io_hdr.retries = 3;
1045         tio->lun = dl;
1046         tio->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tio;
1047         list->stage++;
1048         if (tpcl_queue(tio->io, tio->lun) != CTL_RETVAL_COMPLETE)
1049                 panic("tpcl_queue() error");
1050         return (CTL_RETVAL_QUEUED);
1051 }
1052
1053 static off_t
1054 tpc_ranges_length(struct scsi_range_desc *range, int nrange)
1055 {
1056         off_t length = 0;
1057         int r;
1058
1059         for (r = 0; r < nrange; r++)
1060                 length += scsi_4btoul(range[r].length);
1061         return (length);
1062 }
1063
1064 static int
1065 tpc_skip_ranges(struct scsi_range_desc *range, int nrange, off_t skip,
1066     int *srange, off_t *soffset)
1067 {
1068         off_t off;
1069         int r;
1070
1071         r = 0;
1072         off = 0;
1073         while (r < nrange) {
1074                 if (skip - off < scsi_4btoul(range[r].length)) {
1075                         *srange = r;
1076                         *soffset = skip - off;
1077                         return (0);
1078                 }
1079                 off += scsi_4btoul(range[r].length);
1080                 r++;
1081         }
1082         return (-1);
1083 }
1084
1085 static int
1086 tpc_process_wut(struct tpc_list *list)
1087 {
1088         struct tpc_io *tio, *tior, *tiow;
1089         struct runl run, *prun;
1090         int drange, srange;
1091         off_t doffset, soffset;
1092         off_t srclba, dstlba, numbytes, donebytes, roundbytes;
1093         uint32_t srcblock, dstblock;
1094
1095         if (list->stage > 0) {
1096                 /* Cleanup after previous rounds. */
1097                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1098                         TAILQ_REMOVE(&list->allio, tio, links);
1099                         ctl_free_io(tio->io);
1100                         free(tio, M_CTL);
1101                 }
1102                 free(list->buf, M_CTL);
1103                 if (list->abort) {
1104                         ctl_set_task_aborted(list->ctsio);
1105                         return (CTL_RETVAL_ERROR);
1106                 } else if (list->error) {
1107                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1108                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1109                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1110                         return (CTL_RETVAL_ERROR);
1111                 }
1112                 list->cursectors += list->segsectors;
1113                 list->curbytes += list->segbytes;
1114         }
1115
1116         /* Check where we are on destination ranges list. */
1117         if (tpc_skip_ranges(list->range, list->nrange, list->cursectors,
1118             &drange, &doffset) != 0)
1119                 return (CTL_RETVAL_COMPLETE);
1120         dstblock = list->lun->be_lun->blocksize;
1121
1122         /* Check where we are on source ranges list. */
1123         srcblock = list->token->blocksize;
1124         if (tpc_skip_ranges(list->token->range, list->token->nrange,
1125             list->offset_into_rod + list->cursectors * dstblock / srcblock,
1126             &srange, &soffset) != 0) {
1127                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1128                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1129                     /*asc*/ 0x0d, /*ascq*/ 0x04, SSD_ELEM_NONE);
1130                 return (CTL_RETVAL_ERROR);
1131         }
1132
1133         srclba = scsi_8btou64(list->token->range[srange].lba) + soffset;
1134         numbytes = srcblock * omin(TPC_MAX_IOCHUNK_SIZE / srcblock,
1135             (scsi_4btoul(list->token->range[srange].length) - soffset));
1136         dstlba = scsi_8btou64(list->range[drange].lba) + doffset;
1137         numbytes = omin(numbytes,
1138             dstblock * omin(TPC_MAX_IOCHUNK_SIZE / dstblock,
1139             (scsi_4btoul(list->range[drange].length) - doffset)));
1140
1141         if (numbytes % srcblock != 0 || numbytes % dstblock != 0) {
1142                 ctl_set_sense(list->ctsio, /*current_error*/ 1,
1143                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1144                     /*asc*/ 0x26, /*ascq*/ 0x0A, SSD_ELEM_NONE);
1145                 return (CTL_RETVAL_ERROR);
1146         }
1147
1148         list->buf = malloc(numbytes, M_CTL, M_WAITOK |
1149             (list->token == NULL ? M_ZERO : 0));
1150         list->segbytes = numbytes;
1151         list->segsectors = numbytes / dstblock;
1152 //printf("Copy chunk of %ju sectors from %ju to %ju\n", list->segsectors,
1153 //    srclba, dstlba);
1154         donebytes = 0;
1155         TAILQ_INIT(&run);
1156         prun = &run;
1157         list->tbdio = 1;
1158         TAILQ_INIT(&list->allio);
1159         while (donebytes < numbytes) {
1160                 roundbytes = MIN(numbytes - donebytes, TPC_MAX_IO_SIZE);
1161
1162                 tior = malloc(sizeof(*tior), M_CTL, M_WAITOK | M_ZERO);
1163                 TAILQ_INIT(&tior->run);
1164                 tior->list = list;
1165                 TAILQ_INSERT_TAIL(&list->allio, tior, links);
1166                 tior->io = tpcl_alloc_io();
1167                 ctl_scsi_read_write(tior->io,
1168                                     /*data_ptr*/ &list->buf[donebytes],
1169                                     /*data_len*/ roundbytes,
1170                                     /*read_op*/ 1,
1171                                     /*byte2*/ 0,
1172                                     /*minimum_cdb_size*/ 0,
1173                                     /*lba*/ srclba + donebytes / srcblock,
1174                                     /*num_blocks*/ roundbytes / srcblock,
1175                                     /*tag_type*/ CTL_TAG_SIMPLE,
1176                                     /*control*/ 0);
1177                 tior->io->io_hdr.retries = 3;
1178                 tior->lun = list->token->lun;
1179                 tior->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tior;
1180
1181                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1182                 TAILQ_INIT(&tiow->run);
1183                 tiow->list = list;
1184                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1185                 tiow->io = tpcl_alloc_io();
1186                 ctl_scsi_read_write(tiow->io,
1187                                     /*data_ptr*/ &list->buf[donebytes],
1188                                     /*data_len*/ roundbytes,
1189                                     /*read_op*/ 0,
1190                                     /*byte2*/ 0,
1191                                     /*minimum_cdb_size*/ 0,
1192                                     /*lba*/ dstlba + donebytes / dstblock,
1193                                     /*num_blocks*/ roundbytes / dstblock,
1194                                     /*tag_type*/ CTL_TAG_SIMPLE,
1195                                     /*control*/ 0);
1196                 tiow->io->io_hdr.retries = 3;
1197                 tiow->lun = list->lun->lun;
1198                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1199
1200                 TAILQ_INSERT_TAIL(&tior->run, tiow, rlinks);
1201                 TAILQ_INSERT_TAIL(prun, tior, rlinks);
1202                 prun = &tior->run;
1203                 donebytes += roundbytes;
1204         }
1205
1206         while ((tior = TAILQ_FIRST(&run)) != NULL) {
1207                 TAILQ_REMOVE(&run, tior, rlinks);
1208                 if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1209                         panic("tpcl_queue() error");
1210         }
1211
1212         list->stage++;
1213         return (CTL_RETVAL_QUEUED);
1214 }
1215
1216 static int
1217 tpc_process_zero_wut(struct tpc_list *list)
1218 {
1219         struct tpc_io *tio, *tiow;
1220         struct runl run, *prun;
1221         int r;
1222         uint32_t dstblock, len;
1223
1224         if (list->stage > 0) {
1225 complete:
1226                 /* Cleanup after previous rounds. */
1227                 while ((tio = TAILQ_FIRST(&list->allio)) != NULL) {
1228                         TAILQ_REMOVE(&list->allio, tio, links);
1229                         ctl_free_io(tio->io);
1230                         free(tio, M_CTL);
1231                 }
1232                 free(list->buf, M_CTL);
1233                 if (list->abort) {
1234                         ctl_set_task_aborted(list->ctsio);
1235                         return (CTL_RETVAL_ERROR);
1236                 } else if (list->error) {
1237                         ctl_set_sense(list->ctsio, /*current_error*/ 1,
1238                             /*sense_key*/ SSD_KEY_COPY_ABORTED,
1239                             /*asc*/ 0x0d, /*ascq*/ 0x01, SSD_ELEM_NONE);
1240                         return (CTL_RETVAL_ERROR);
1241                 }
1242                 list->cursectors += list->segsectors;
1243                 list->curbytes += list->segbytes;
1244                 return (CTL_RETVAL_COMPLETE);
1245         }
1246
1247         dstblock = list->lun->be_lun->blocksize;
1248         list->buf = malloc(dstblock, M_CTL, M_WAITOK | M_ZERO);
1249         TAILQ_INIT(&run);
1250         prun = &run;
1251         list->tbdio = 1;
1252         TAILQ_INIT(&list->allio);
1253         list->segsectors = 0;
1254         for (r = 0; r < list->nrange; r++) {
1255                 len = scsi_4btoul(list->range[r].length);
1256                 if (len == 0)
1257                         continue;
1258
1259                 tiow = malloc(sizeof(*tiow), M_CTL, M_WAITOK | M_ZERO);
1260                 TAILQ_INIT(&tiow->run);
1261                 tiow->list = list;
1262                 TAILQ_INSERT_TAIL(&list->allio, tiow, links);
1263                 tiow->io = tpcl_alloc_io();
1264                 ctl_scsi_write_same(tiow->io,
1265                                     /*data_ptr*/ list->buf,
1266                                     /*data_len*/ dstblock,
1267                                     /*byte2*/ 0,
1268                                     /*lba*/ scsi_8btou64(list->range[r].lba),
1269                                     /*num_blocks*/ len,
1270                                     /*tag_type*/ CTL_TAG_SIMPLE,
1271                                     /*control*/ 0);
1272                 tiow->io->io_hdr.retries = 3;
1273                 tiow->lun = list->lun->lun;
1274                 tiow->io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = tiow;
1275
1276                 TAILQ_INSERT_TAIL(prun, tiow, rlinks);
1277                 prun = &tiow->run;
1278                 list->segsectors += len;
1279         }
1280         list->segbytes = list->segsectors * dstblock;
1281
1282         if (TAILQ_EMPTY(&run))
1283                 goto complete;
1284
1285         while ((tiow = TAILQ_FIRST(&run)) != NULL) {
1286                 TAILQ_REMOVE(&run, tiow, rlinks);
1287                 if (tpcl_queue(tiow->io, tiow->lun) != CTL_RETVAL_COMPLETE)
1288                         panic("tpcl_queue() error");
1289         }
1290
1291         list->stage++;
1292         return (CTL_RETVAL_QUEUED);
1293 }
1294
1295 static void
1296 tpc_process(struct tpc_list *list)
1297 {
1298         struct ctl_lun *lun = list->lun;
1299         struct scsi_ec_segment *seg;
1300         struct ctl_scsiio *ctsio = list->ctsio;
1301         int retval = CTL_RETVAL_COMPLETE;
1302
1303         if (list->service_action == EC_WUT) {
1304                 if (list->token != NULL)
1305                         retval = tpc_process_wut(list);
1306                 else
1307                         retval = tpc_process_zero_wut(list);
1308                 if (retval == CTL_RETVAL_QUEUED)
1309                         return;
1310                 if (retval == CTL_RETVAL_ERROR) {
1311                         list->error = 1;
1312                         goto done;
1313                 }
1314         } else {
1315 //printf("ZZZ %d cscd, %d segs\n", list->ncscd, list->nseg);
1316                 while (list->curseg < list->nseg) {
1317                         seg = list->seg[list->curseg];
1318                         switch (seg->type_code) {
1319                         case EC_SEG_B2B:
1320                                 retval = tpc_process_b2b(list);
1321                                 break;
1322                         case EC_SEG_VERIFY:
1323                                 retval = tpc_process_verify(list);
1324                                 break;
1325                         case EC_SEG_REGISTER_KEY:
1326                                 retval = tpc_process_register_key(list);
1327                                 break;
1328                         default:
1329                                 ctl_set_sense(ctsio, /*current_error*/ 1,
1330                                     /*sense_key*/ SSD_KEY_COPY_ABORTED,
1331                                     /*asc*/ 0x26, /*ascq*/ 0x09, SSD_ELEM_NONE);
1332                                 goto done;
1333                         }
1334                         if (retval == CTL_RETVAL_QUEUED)
1335                                 return;
1336                         if (retval == CTL_RETVAL_ERROR) {
1337                                 list->error = 1;
1338                                 goto done;
1339                         }
1340                         list->curseg++;
1341                         list->stage = 0;
1342                 }
1343         }
1344
1345         ctl_set_success(ctsio);
1346
1347 done:
1348 //printf("ZZZ done\n");
1349         free(list->params, M_CTL);
1350         list->params = NULL;
1351         if (list->token) {
1352                 mtx_lock(&control_softc->ctl_lock);
1353                 if (--list->token->active == 0)
1354                         list->token->last_active = time_uptime;
1355                 mtx_unlock(&control_softc->ctl_lock);
1356                 list->token = NULL;
1357         }
1358         mtx_lock(&lun->lun_lock);
1359         if ((list->flags & EC_LIST_ID_USAGE_MASK) == EC_LIST_ID_USAGE_NONE) {
1360                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
1361                 free(list, M_CTL);
1362         } else {
1363                 list->completed = 1;
1364                 list->last_active = time_uptime;
1365                 list->sense_data = ctsio->sense_data;
1366                 list->sense_len = ctsio->sense_len;
1367                 list->scsi_status = ctsio->scsi_status;
1368         }
1369         mtx_unlock(&lun->lun_lock);
1370
1371         ctl_done((union ctl_io *)ctsio);
1372 }
1373
1374 /*
1375  * For any sort of check condition, busy, etc., we just retry.  We do not
1376  * decrement the retry count for unit attention type errors.  These are
1377  * normal, and we want to save the retry count for "real" errors.  Otherwise,
1378  * we could end up with situations where a command will succeed in some
1379  * situations and fail in others, depending on whether a unit attention is
1380  * pending.  Also, some of our error recovery actions, most notably the
1381  * LUN reset action, will cause a unit attention.
1382  *
1383  * We can add more detail here later if necessary.
1384  */
1385 static tpc_error_action
1386 tpc_checkcond_parse(union ctl_io *io)
1387 {
1388         tpc_error_action error_action;
1389         int error_code, sense_key, asc, ascq;
1390
1391         /*
1392          * Default to retrying the command.
1393          */
1394         error_action = TPC_ERR_RETRY;
1395
1396         scsi_extract_sense_len(&io->scsiio.sense_data,
1397                                io->scsiio.sense_len,
1398                                &error_code,
1399                                &sense_key,
1400                                &asc,
1401                                &ascq,
1402                                /*show_errors*/ 1);
1403
1404         switch (error_code) {
1405         case SSD_DEFERRED_ERROR:
1406         case SSD_DESC_DEFERRED_ERROR:
1407                 error_action |= TPC_ERR_NO_DECREMENT;
1408                 break;
1409         case SSD_CURRENT_ERROR:
1410         case SSD_DESC_CURRENT_ERROR:
1411         default:
1412                 switch (sense_key) {
1413                 case SSD_KEY_UNIT_ATTENTION:
1414                         error_action |= TPC_ERR_NO_DECREMENT;
1415                         break;
1416                 case SSD_KEY_HARDWARE_ERROR:
1417                         /*
1418                          * This is our generic "something bad happened"
1419                          * error code.  It often isn't recoverable.
1420                          */
1421                         if ((asc == 0x44) && (ascq == 0x00))
1422                                 error_action = TPC_ERR_FAIL;
1423                         break;
1424                 case SSD_KEY_NOT_READY:
1425                         /*
1426                          * If the LUN is powered down, there likely isn't
1427                          * much point in retrying right now.
1428                          */
1429                         if ((asc == 0x04) && (ascq == 0x02))
1430                                 error_action = TPC_ERR_FAIL;
1431                         /*
1432                          * If the LUN is offline, there probably isn't much
1433                          * point in retrying, either.
1434                          */
1435                         if ((asc == 0x04) && (ascq == 0x03))
1436                                 error_action = TPC_ERR_FAIL;
1437                         break;
1438                 }
1439         }
1440         return (error_action);
1441 }
1442
1443 static tpc_error_action
1444 tpc_error_parse(union ctl_io *io)
1445 {
1446         tpc_error_action error_action = TPC_ERR_RETRY;
1447
1448         switch (io->io_hdr.io_type) {
1449         case CTL_IO_SCSI:
1450                 switch (io->io_hdr.status & CTL_STATUS_MASK) {
1451                 case CTL_SCSI_ERROR:
1452                         switch (io->scsiio.scsi_status) {
1453                         case SCSI_STATUS_CHECK_COND:
1454                                 error_action = tpc_checkcond_parse(io);
1455                                 break;
1456                         default:
1457                                 break;
1458                         }
1459                         break;
1460                 default:
1461                         break;
1462                 }
1463                 break;
1464         case CTL_IO_TASK:
1465                 break;
1466         default:
1467                 panic("%s: invalid ctl_io type %d\n", __func__,
1468                       io->io_hdr.io_type);
1469                 break;
1470         }
1471         return (error_action);
1472 }
1473
1474 void
1475 tpc_done(union ctl_io *io)
1476 {
1477         struct tpc_io *tio, *tior;
1478
1479         /*
1480          * Very minimal retry logic.  We basically retry if we got an error
1481          * back, and the retry count is greater than 0.  If we ever want
1482          * more sophisticated initiator type behavior, the CAM error
1483          * recovery code in ../common might be helpful.
1484          */
1485 //      if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1486 //              ctl_io_error_print(io, NULL);
1487         tio = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1488         if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1489          && (io->io_hdr.retries > 0)) {
1490                 ctl_io_status old_status;
1491                 tpc_error_action error_action;
1492
1493                 error_action = tpc_error_parse(io);
1494                 switch (error_action & TPC_ERR_MASK) {
1495                 case TPC_ERR_FAIL:
1496                         break;
1497                 case TPC_ERR_RETRY:
1498                 default:
1499                         if ((error_action & TPC_ERR_NO_DECREMENT) == 0)
1500                                 io->io_hdr.retries--;
1501                         old_status = io->io_hdr.status;
1502                         io->io_hdr.status = CTL_STATUS_NONE;
1503                         io->io_hdr.flags &= ~CTL_FLAG_ABORT;
1504                         io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
1505                         if (tpcl_queue(io, tio->lun) != CTL_RETVAL_COMPLETE) {
1506                                 printf("%s: error returned from ctl_queue()!\n",
1507                                        __func__);
1508                                 io->io_hdr.status = old_status;
1509                         } else
1510                                 return;
1511                 }
1512         }
1513
1514         if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
1515                 tio->list->error = 1;
1516         else
1517                 atomic_add_int(&tio->list->curops, 1);
1518         if (!tio->list->error && !tio->list->abort) {
1519                 while ((tior = TAILQ_FIRST(&tio->run)) != NULL) {
1520                         TAILQ_REMOVE(&tio->run, tior, rlinks);
1521                         atomic_add_int(&tio->list->tbdio, 1);
1522                         if (tpcl_queue(tior->io, tior->lun) != CTL_RETVAL_COMPLETE)
1523                                 panic("tpcl_queue() error");
1524                 }
1525         }
1526         if (atomic_fetchadd_int(&tio->list->tbdio, -1) == 1)
1527                 tpc_process(tio->list);
1528 }
1529
1530 int
1531 ctl_extended_copy_lid1(struct ctl_scsiio *ctsio)
1532 {
1533         struct scsi_extended_copy *cdb;
1534         struct scsi_extended_copy_lid1_data *data;
1535         struct ctl_lun *lun;
1536         struct tpc_list *list, *tlist;
1537         uint8_t *ptr;
1538         char *value;
1539         int len, off, lencscd, lenseg, leninl, nseg;
1540
1541         CTL_DEBUG_PRINT(("ctl_extended_copy_lid1\n"));
1542
1543         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1544         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1545         len = scsi_4btoul(cdb->length);
1546
1547         if (len < sizeof(struct scsi_extended_copy_lid1_data) ||
1548             len > sizeof(struct scsi_extended_copy_lid1_data) +
1549             TPC_MAX_LIST + TPC_MAX_INLINE) {
1550                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1551                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1552                 goto done;
1553         }
1554
1555         /*
1556          * If we've got a kernel request that hasn't been malloced yet,
1557          * malloc it and tell the caller the data buffer is here.
1558          */
1559         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1560                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1561                 ctsio->kern_data_len = len;
1562                 ctsio->kern_total_len = len;
1563                 ctsio->kern_data_resid = 0;
1564                 ctsio->kern_rel_offset = 0;
1565                 ctsio->kern_sg_entries = 0;
1566                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1567                 ctsio->be_move_done = ctl_config_move_done;
1568                 ctl_datamove((union ctl_io *)ctsio);
1569
1570                 return (CTL_RETVAL_COMPLETE);
1571         }
1572
1573         data = (struct scsi_extended_copy_lid1_data *)ctsio->kern_data_ptr;
1574         lencscd = scsi_2btoul(data->cscd_list_length);
1575         lenseg = scsi_4btoul(data->segment_list_length);
1576         leninl = scsi_4btoul(data->inline_data_length);
1577         if (len < sizeof(struct scsi_extended_copy_lid1_data) +
1578             lencscd + lenseg + leninl ||
1579             leninl > TPC_MAX_INLINE) {
1580                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1581                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1582                 goto done;
1583         }
1584         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1585                 ctl_set_sense(ctsio, /*current_error*/ 1,
1586                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1587                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1588                 goto done;
1589         }
1590         if (lencscd + lenseg > TPC_MAX_LIST) {
1591                 ctl_set_param_len_error(ctsio);
1592                 goto done;
1593         }
1594
1595         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1596         list->service_action = cdb->service_action;
1597         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1598         if (value != NULL && strcmp(value, "on") == 0)
1599                 list->init_port = -1;
1600         else
1601                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1602         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1603         list->list_id = data->list_identifier;
1604         list->flags = data->flags;
1605         list->params = ctsio->kern_data_ptr;
1606         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1607         ptr = &data->data[lencscd];
1608         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1609                 if (nseg >= TPC_MAX_SEGS) {
1610                         free(list, M_CTL);
1611                         ctl_set_sense(ctsio, /*current_error*/ 1,
1612                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1613                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1614                         goto done;
1615                 }
1616                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1617                 off += sizeof(struct scsi_ec_segment) +
1618                     scsi_2btoul(list->seg[nseg]->descr_length);
1619         }
1620         list->inl = &data->data[lencscd + lenseg];
1621         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1622         list->nseg = nseg;
1623         list->leninl = leninl;
1624         list->ctsio = ctsio;
1625         list->lun = lun;
1626         mtx_lock(&lun->lun_lock);
1627         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1628                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1629                 if (tlist != NULL && !tlist->completed) {
1630                         mtx_unlock(&lun->lun_lock);
1631                         free(list, M_CTL);
1632                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1633                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1634                             /*bit*/ 0);
1635                         goto done;
1636                 }
1637                 if (tlist != NULL) {
1638                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1639                         free(tlist, M_CTL);
1640                 }
1641         }
1642         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1643         mtx_unlock(&lun->lun_lock);
1644
1645         tpc_process(list);
1646         return (CTL_RETVAL_COMPLETE);
1647
1648 done:
1649         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1650                 free(ctsio->kern_data_ptr, M_CTL);
1651                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1652         }
1653         ctl_done((union ctl_io *)ctsio);
1654         return (CTL_RETVAL_COMPLETE);
1655 }
1656
1657 int
1658 ctl_extended_copy_lid4(struct ctl_scsiio *ctsio)
1659 {
1660         struct scsi_extended_copy *cdb;
1661         struct scsi_extended_copy_lid4_data *data;
1662         struct ctl_lun *lun;
1663         struct tpc_list *list, *tlist;
1664         uint8_t *ptr;
1665         char *value;
1666         int len, off, lencscd, lenseg, leninl, nseg;
1667
1668         CTL_DEBUG_PRINT(("ctl_extended_copy_lid4\n"));
1669
1670         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1671         cdb = (struct scsi_extended_copy *)ctsio->cdb;
1672         len = scsi_4btoul(cdb->length);
1673
1674         if (len < sizeof(struct scsi_extended_copy_lid4_data) ||
1675             len > sizeof(struct scsi_extended_copy_lid4_data) +
1676             TPC_MAX_LIST + TPC_MAX_INLINE) {
1677                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1678                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1679                 goto done;
1680         }
1681
1682         /*
1683          * If we've got a kernel request that hasn't been malloced yet,
1684          * malloc it and tell the caller the data buffer is here.
1685          */
1686         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1687                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1688                 ctsio->kern_data_len = len;
1689                 ctsio->kern_total_len = len;
1690                 ctsio->kern_data_resid = 0;
1691                 ctsio->kern_rel_offset = 0;
1692                 ctsio->kern_sg_entries = 0;
1693                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1694                 ctsio->be_move_done = ctl_config_move_done;
1695                 ctl_datamove((union ctl_io *)ctsio);
1696
1697                 return (CTL_RETVAL_COMPLETE);
1698         }
1699
1700         data = (struct scsi_extended_copy_lid4_data *)ctsio->kern_data_ptr;
1701         lencscd = scsi_2btoul(data->cscd_list_length);
1702         lenseg = scsi_2btoul(data->segment_list_length);
1703         leninl = scsi_2btoul(data->inline_data_length);
1704         if (len < sizeof(struct scsi_extended_copy_lid4_data) +
1705             lencscd + lenseg + leninl ||
1706             leninl > TPC_MAX_INLINE) {
1707                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1708                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1709                 goto done;
1710         }
1711         if (lencscd > TPC_MAX_CSCDS * sizeof(struct scsi_ec_cscd)) {
1712                 ctl_set_sense(ctsio, /*current_error*/ 1,
1713                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1714                     /*asc*/ 0x26, /*ascq*/ 0x06, SSD_ELEM_NONE);
1715                 goto done;
1716         }
1717         if (lencscd + lenseg > TPC_MAX_LIST) {
1718                 ctl_set_param_len_error(ctsio);
1719                 goto done;
1720         }
1721
1722         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1723         list->service_action = cdb->service_action;
1724         value = ctl_get_opt(&lun->be_lun->options, "insecure_tpc");
1725         if (value != NULL && strcmp(value, "on") == 0)
1726                 list->init_port = -1;
1727         else
1728                 list->init_port = ctsio->io_hdr.nexus.targ_port;
1729         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1730         list->list_id = scsi_4btoul(data->list_identifier);
1731         list->flags = data->flags;
1732         list->params = ctsio->kern_data_ptr;
1733         list->cscd = (struct scsi_ec_cscd *)&data->data[0];
1734         ptr = &data->data[lencscd];
1735         for (nseg = 0, off = 0; off < lenseg; nseg++) {
1736                 if (nseg >= TPC_MAX_SEGS) {
1737                         free(list, M_CTL);
1738                         ctl_set_sense(ctsio, /*current_error*/ 1,
1739                             /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1740                             /*asc*/ 0x26, /*ascq*/ 0x08, SSD_ELEM_NONE);
1741                         goto done;
1742                 }
1743                 list->seg[nseg] = (struct scsi_ec_segment *)(ptr + off);
1744                 off += sizeof(struct scsi_ec_segment) +
1745                     scsi_2btoul(list->seg[nseg]->descr_length);
1746         }
1747         list->inl = &data->data[lencscd + lenseg];
1748         list->ncscd = lencscd / sizeof(struct scsi_ec_cscd);
1749         list->nseg = nseg;
1750         list->leninl = leninl;
1751         list->ctsio = ctsio;
1752         list->lun = lun;
1753         mtx_lock(&lun->lun_lock);
1754         if ((list->flags & EC_LIST_ID_USAGE_MASK) != EC_LIST_ID_USAGE_NONE) {
1755                 tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1756                 if (tlist != NULL && !tlist->completed) {
1757                         mtx_unlock(&lun->lun_lock);
1758                         free(list, M_CTL);
1759                         ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1760                             /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1761                             /*bit*/ 0);
1762                         goto done;
1763                 }
1764                 if (tlist != NULL) {
1765                         TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1766                         free(tlist, M_CTL);
1767                 }
1768         }
1769         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1770         mtx_unlock(&lun->lun_lock);
1771
1772         tpc_process(list);
1773         return (CTL_RETVAL_COMPLETE);
1774
1775 done:
1776         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1777                 free(ctsio->kern_data_ptr, M_CTL);
1778                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1779         }
1780         ctl_done((union ctl_io *)ctsio);
1781         return (CTL_RETVAL_COMPLETE);
1782 }
1783
1784 static void
1785 tpc_create_token(struct ctl_lun *lun, struct ctl_port *port, off_t len,
1786     struct scsi_token *token)
1787 {
1788         static int id = 0;
1789         struct scsi_vpd_id_descriptor *idd = NULL;
1790         struct scsi_ec_cscd_id *cscd;
1791         struct scsi_read_capacity_data_long *dtsd;
1792         int targid_len;
1793
1794         scsi_ulto4b(ROD_TYPE_AUR, token->type);
1795         scsi_ulto2b(0x01f8, token->length);
1796         scsi_u64to8b(atomic_fetchadd_int(&id, 1), &token->body[0]);
1797         if (lun->lun_devid)
1798                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1799                     lun->lun_devid->data, lun->lun_devid->len,
1800                     scsi_devid_is_lun_naa);
1801         if (idd == NULL && lun->lun_devid)
1802                 idd = scsi_get_devid_desc((struct scsi_vpd_id_descriptor *)
1803                     lun->lun_devid->data, lun->lun_devid->len,
1804                     scsi_devid_is_lun_eui64);
1805         if (idd != NULL) {
1806                 cscd = (struct scsi_ec_cscd_id *)&token->body[8];
1807                 cscd->type_code = EC_CSCD_ID;
1808                 cscd->luidt_pdt = T_DIRECT;
1809                 memcpy(&cscd->codeset, idd, 4 + idd->length);
1810                 scsi_ulto3b(lun->be_lun->blocksize, cscd->dtsp.block_length);
1811         }
1812         scsi_u64to8b(0, &token->body[40]); /* XXX: Should be 128bit value. */
1813         scsi_u64to8b(len, &token->body[48]);
1814
1815         /* ROD token device type specific data (RC16 without first field) */
1816         dtsd = (struct scsi_read_capacity_data_long *)&token->body[88 - 8];
1817         scsi_ulto4b(lun->be_lun->blocksize, dtsd->length);
1818         dtsd->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
1819         scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, dtsd->lalba_lbp);
1820         if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
1821                 dtsd->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ;
1822
1823         if (port->target_devid) {
1824                 targid_len = port->target_devid->len;
1825                 memcpy(&token->body[120], port->target_devid->data, targid_len);
1826         } else
1827                 targid_len = 32;
1828         arc4rand(&token->body[120 + targid_len], 384 - targid_len, 0);
1829 };
1830
1831 int
1832 ctl_populate_token(struct ctl_scsiio *ctsio)
1833 {
1834         struct scsi_populate_token *cdb;
1835         struct scsi_populate_token_data *data;
1836         struct ctl_lun *lun;
1837         struct ctl_port *port;
1838         struct tpc_list *list, *tlist;
1839         struct tpc_token *token;
1840         int len, lendesc;
1841
1842         CTL_DEBUG_PRINT(("ctl_populate_token\n"));
1843
1844         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1845         port = control_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)];
1846         cdb = (struct scsi_populate_token *)ctsio->cdb;
1847         len = scsi_4btoul(cdb->length);
1848
1849         if (len < sizeof(struct scsi_populate_token_data) ||
1850             len > sizeof(struct scsi_populate_token_data) +
1851              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1852                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1853                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1854                 goto done;
1855         }
1856
1857         /*
1858          * If we've got a kernel request that hasn't been malloced yet,
1859          * malloc it and tell the caller the data buffer is here.
1860          */
1861         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1862                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1863                 ctsio->kern_data_len = len;
1864                 ctsio->kern_total_len = len;
1865                 ctsio->kern_data_resid = 0;
1866                 ctsio->kern_rel_offset = 0;
1867                 ctsio->kern_sg_entries = 0;
1868                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
1869                 ctsio->be_move_done = ctl_config_move_done;
1870                 ctl_datamove((union ctl_io *)ctsio);
1871
1872                 return (CTL_RETVAL_COMPLETE);
1873         }
1874
1875         data = (struct scsi_populate_token_data *)ctsio->kern_data_ptr;
1876         lendesc = scsi_2btoul(data->range_descriptor_length);
1877         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
1878                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1879                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
1880                 goto done;
1881         }
1882 /*
1883         printf("PT(list=%u) flags=%x to=%d rt=%x len=%x\n",
1884             scsi_4btoul(cdb->list_identifier),
1885             data->flags, scsi_4btoul(data->inactivity_timeout),
1886             scsi_4btoul(data->rod_type),
1887             scsi_2btoul(data->range_descriptor_length));
1888 */
1889         if ((data->flags & EC_PT_RTV) &&
1890             scsi_4btoul(data->rod_type) != ROD_TYPE_AUR) {
1891                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
1892                     /*field*/ 8, /*bit_valid*/ 0, /*bit*/ 0);
1893                 goto done;
1894         }
1895
1896         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
1897         list->service_action = cdb->service_action;
1898         list->init_port = ctsio->io_hdr.nexus.targ_port;
1899         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
1900         list->list_id = scsi_4btoul(cdb->list_identifier);
1901         list->flags = data->flags;
1902         list->ctsio = ctsio;
1903         list->lun = lun;
1904         mtx_lock(&lun->lun_lock);
1905         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
1906         if (tlist != NULL && !tlist->completed) {
1907                 mtx_unlock(&lun->lun_lock);
1908                 free(list, M_CTL);
1909                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1910                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
1911                     /*bit*/ 0);
1912                 goto done;
1913         }
1914         if (tlist != NULL) {
1915                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
1916                 free(tlist, M_CTL);
1917         }
1918         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
1919         mtx_unlock(&lun->lun_lock);
1920
1921         token = malloc(sizeof(*token), M_CTL, M_WAITOK | M_ZERO);
1922         token->lun = lun->lun;
1923         token->blocksize = lun->be_lun->blocksize;
1924         token->params = ctsio->kern_data_ptr;
1925         token->range = &data->desc[0];
1926         token->nrange = scsi_2btoul(data->range_descriptor_length) /
1927             sizeof(struct scsi_range_desc);
1928         list->cursectors = tpc_ranges_length(token->range, token->nrange);
1929         list->curbytes = (off_t)list->cursectors * lun->be_lun->blocksize;
1930         tpc_create_token(lun, port, list->curbytes,
1931             (struct scsi_token *)token->token);
1932         token->active = 0;
1933         token->last_active = time_uptime;
1934         token->timeout = scsi_4btoul(data->inactivity_timeout);
1935         if (token->timeout == 0)
1936                 token->timeout = TPC_DFL_TOKEN_TIMEOUT;
1937         else if (token->timeout < TPC_MIN_TOKEN_TIMEOUT)
1938                 token->timeout = TPC_MIN_TOKEN_TIMEOUT;
1939         else if (token->timeout > TPC_MAX_TOKEN_TIMEOUT) {
1940                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
1941                     /*command*/ 0, /*field*/ 4, /*bit_valid*/ 0,
1942                     /*bit*/ 0);
1943         }
1944         memcpy(list->res_token, token->token, sizeof(list->res_token));
1945         list->res_token_valid = 1;
1946         list->curseg = 0;
1947         list->completed = 1;
1948         list->last_active = time_uptime;
1949         mtx_lock(&control_softc->ctl_lock);
1950         TAILQ_INSERT_TAIL(&control_softc->tpc_tokens, token, links);
1951         mtx_unlock(&control_softc->ctl_lock);
1952         ctl_set_success(ctsio);
1953         ctl_done((union ctl_io *)ctsio);
1954         return (CTL_RETVAL_COMPLETE);
1955
1956 done:
1957         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
1958                 free(ctsio->kern_data_ptr, M_CTL);
1959                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
1960         }
1961         ctl_done((union ctl_io *)ctsio);
1962         return (CTL_RETVAL_COMPLETE);
1963 }
1964
1965 int
1966 ctl_write_using_token(struct ctl_scsiio *ctsio)
1967 {
1968         struct scsi_write_using_token *cdb;
1969         struct scsi_write_using_token_data *data;
1970         struct ctl_lun *lun;
1971         struct tpc_list *list, *tlist;
1972         struct tpc_token *token;
1973         int len, lendesc;
1974
1975         CTL_DEBUG_PRINT(("ctl_write_using_token\n"));
1976
1977         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
1978         cdb = (struct scsi_write_using_token *)ctsio->cdb;
1979         len = scsi_4btoul(cdb->length);
1980
1981         if (len < sizeof(struct scsi_populate_token_data) ||
1982             len > sizeof(struct scsi_populate_token_data) +
1983              TPC_MAX_SEGS * sizeof(struct scsi_range_desc)) {
1984                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1,
1985                     /*field*/ 9, /*bit_valid*/ 0, /*bit*/ 0);
1986                 goto done;
1987         }
1988
1989         /*
1990          * If we've got a kernel request that hasn't been malloced yet,
1991          * malloc it and tell the caller the data buffer is here.
1992          */
1993         if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
1994                 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);
1995                 ctsio->kern_data_len = len;
1996                 ctsio->kern_total_len = len;
1997                 ctsio->kern_data_resid = 0;
1998                 ctsio->kern_rel_offset = 0;
1999                 ctsio->kern_sg_entries = 0;
2000                 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2001                 ctsio->be_move_done = ctl_config_move_done;
2002                 ctl_datamove((union ctl_io *)ctsio);
2003
2004                 return (CTL_RETVAL_COMPLETE);
2005         }
2006
2007         data = (struct scsi_write_using_token_data *)ctsio->kern_data_ptr;
2008         lendesc = scsi_2btoul(data->range_descriptor_length);
2009         if (len < sizeof(struct scsi_populate_token_data) + lendesc) {
2010                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 0,
2011                     /*field*/ 2, /*bit_valid*/ 0, /*bit*/ 0);
2012                 goto done;
2013         }
2014 /*
2015         printf("WUT(list=%u) flags=%x off=%ju len=%x\n",
2016             scsi_4btoul(cdb->list_identifier),
2017             data->flags, scsi_8btou64(data->offset_into_rod),
2018             scsi_2btoul(data->range_descriptor_length));
2019 */
2020         list = malloc(sizeof(struct tpc_list), M_CTL, M_WAITOK | M_ZERO);
2021         list->service_action = cdb->service_action;
2022         list->init_port = ctsio->io_hdr.nexus.targ_port;
2023         list->init_idx = ctl_get_resindex(&ctsio->io_hdr.nexus);
2024         list->list_id = scsi_4btoul(cdb->list_identifier);
2025         list->flags = data->flags;
2026         list->params = ctsio->kern_data_ptr;
2027         list->range = &data->desc[0];
2028         list->nrange = scsi_2btoul(data->range_descriptor_length) /
2029             sizeof(struct scsi_range_desc);
2030         list->offset_into_rod = scsi_8btou64(data->offset_into_rod);
2031         list->ctsio = ctsio;
2032         list->lun = lun;
2033         mtx_lock(&lun->lun_lock);
2034         tlist = tpc_find_list(lun, list->list_id, list->init_idx);
2035         if (tlist != NULL && !tlist->completed) {
2036                 mtx_unlock(&lun->lun_lock);
2037                 free(list, M_CTL);
2038                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2039                     /*command*/ 0, /*field*/ 0, /*bit_valid*/ 0,
2040                     /*bit*/ 0);
2041                 goto done;
2042         }
2043         if (tlist != NULL) {
2044                 TAILQ_REMOVE(&lun->tpc_lists, tlist, links);
2045                 free(tlist, M_CTL);
2046         }
2047         TAILQ_INSERT_TAIL(&lun->tpc_lists, list, links);
2048         mtx_unlock(&lun->lun_lock);
2049
2050         /* Block device zero ROD token -> no token. */
2051         if (scsi_4btoul(data->rod_token) == ROD_TYPE_BLOCK_ZERO) {
2052                 tpc_process(list);
2053                 return (CTL_RETVAL_COMPLETE);
2054         }
2055
2056         mtx_lock(&control_softc->ctl_lock);
2057         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2058                 if (memcmp(token->token, data->rod_token,
2059                     sizeof(data->rod_token)) == 0)
2060                         break;
2061         }
2062         if (token != NULL) {
2063                 token->active++;
2064                 list->token = token;
2065                 if (data->flags & EC_WUT_DEL_TKN)
2066                         token->timeout = 0;
2067         }
2068         mtx_unlock(&control_softc->ctl_lock);
2069         if (token == NULL) {
2070                 mtx_lock(&lun->lun_lock);
2071                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2072                 mtx_unlock(&lun->lun_lock);
2073                 free(list, M_CTL);
2074                 ctl_set_sense(ctsio, /*current_error*/ 1,
2075                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
2076                     /*asc*/ 0x23, /*ascq*/ 0x04, SSD_ELEM_NONE);
2077                 goto done;
2078         }
2079
2080         tpc_process(list);
2081         return (CTL_RETVAL_COMPLETE);
2082
2083 done:
2084         if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
2085                 free(ctsio->kern_data_ptr, M_CTL);
2086                 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
2087         }
2088         ctl_done((union ctl_io *)ctsio);
2089         return (CTL_RETVAL_COMPLETE);
2090 }
2091
2092 int
2093 ctl_receive_rod_token_information(struct ctl_scsiio *ctsio)
2094 {
2095         struct ctl_lun *lun;
2096         struct scsi_receive_rod_token_information *cdb;
2097         struct scsi_receive_copy_status_lid4_data *data;
2098         struct tpc_list *list;
2099         struct tpc_list list_copy;
2100         uint8_t *ptr;
2101         int retval;
2102         int alloc_len, total_len, token_len;
2103         uint32_t list_id;
2104
2105         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2106
2107         cdb = (struct scsi_receive_rod_token_information *)ctsio->cdb;
2108         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2109
2110         retval = CTL_RETVAL_COMPLETE;
2111
2112         list_id = scsi_4btoul(cdb->list_identifier);
2113         mtx_lock(&lun->lun_lock);
2114         list = tpc_find_list(lun, list_id,
2115             ctl_get_resindex(&ctsio->io_hdr.nexus));
2116         if (list == NULL) {
2117                 mtx_unlock(&lun->lun_lock);
2118                 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1,
2119                     /*command*/ 1, /*field*/ 2, /*bit_valid*/ 0,
2120                     /*bit*/ 0);
2121                 ctl_done((union ctl_io *)ctsio);
2122                 return (retval);
2123         }
2124         list_copy = *list;
2125         if (list->completed) {
2126                 TAILQ_REMOVE(&lun->tpc_lists, list, links);
2127                 free(list, M_CTL);
2128         }
2129         mtx_unlock(&lun->lun_lock);
2130
2131         token_len = list_copy.res_token_valid ? 2 + sizeof(list_copy.res_token) : 0;
2132         total_len = sizeof(*data) + list_copy.sense_len + 4 + token_len;
2133         alloc_len = scsi_4btoul(cdb->length);
2134
2135         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2136
2137         ctsio->kern_sg_entries = 0;
2138
2139         if (total_len < alloc_len) {
2140                 ctsio->residual = alloc_len - total_len;
2141                 ctsio->kern_data_len = total_len;
2142                 ctsio->kern_total_len = total_len;
2143         } else {
2144                 ctsio->residual = 0;
2145                 ctsio->kern_data_len = alloc_len;
2146                 ctsio->kern_total_len = alloc_len;
2147         }
2148         ctsio->kern_data_resid = 0;
2149         ctsio->kern_rel_offset = 0;
2150
2151         data = (struct scsi_receive_copy_status_lid4_data *)ctsio->kern_data_ptr;
2152         scsi_ulto4b(sizeof(*data) - 4 + list_copy.sense_len +
2153             4 + token_len, data->available_data);
2154         data->response_to_service_action = list_copy.service_action;
2155         if (list_copy.completed) {
2156                 if (list_copy.error)
2157                         data->copy_command_status = RCS_CCS_ERROR;
2158                 else if (list_copy.abort)
2159                         data->copy_command_status = RCS_CCS_ABORTED;
2160                 else
2161                         data->copy_command_status = RCS_CCS_COMPLETED;
2162         } else
2163                 data->copy_command_status = RCS_CCS_INPROG_FG;
2164         scsi_ulto2b(list_copy.curops, data->operation_counter);
2165         scsi_ulto4b(UINT32_MAX, data->estimated_status_update_delay);
2166         data->transfer_count_units = RCS_TC_LBAS;
2167         scsi_u64to8b(list_copy.cursectors, data->transfer_count);
2168         scsi_ulto2b(list_copy.curseg, data->segments_processed);
2169         data->length_of_the_sense_data_field = list_copy.sense_len;
2170         data->sense_data_length = list_copy.sense_len;
2171         memcpy(data->sense_data, &list_copy.sense_data, list_copy.sense_len);
2172
2173         ptr = &data->sense_data[data->length_of_the_sense_data_field];
2174         scsi_ulto4b(token_len, &ptr[0]);
2175         if (list_copy.res_token_valid) {
2176                 scsi_ulto2b(0, &ptr[4]);
2177                 memcpy(&ptr[6], list_copy.res_token, sizeof(list_copy.res_token));
2178         }
2179 /*
2180         printf("RRTI(list=%u) valid=%d\n",
2181             scsi_4btoul(cdb->list_identifier), list_copy.res_token_valid);
2182 */
2183         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2184         ctsio->be_move_done = ctl_config_move_done;
2185
2186         ctl_datamove((union ctl_io *)ctsio);
2187         return (retval);
2188 }
2189
2190 int
2191 ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio)
2192 {
2193         struct ctl_lun *lun;
2194         struct scsi_report_all_rod_tokens *cdb;
2195         struct scsi_report_all_rod_tokens_data *data;
2196         struct tpc_token *token;
2197         int retval;
2198         int alloc_len, total_len, tokens, i;
2199
2200         CTL_DEBUG_PRINT(("ctl_receive_rod_token_information\n"));
2201
2202         cdb = (struct scsi_report_all_rod_tokens *)ctsio->cdb;
2203         lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
2204
2205         retval = CTL_RETVAL_COMPLETE;
2206
2207         tokens = 0;
2208         mtx_lock(&control_softc->ctl_lock);
2209         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links)
2210                 tokens++;
2211         mtx_unlock(&control_softc->ctl_lock);
2212         if (tokens > 512)
2213                 tokens = 512;
2214
2215         total_len = sizeof(*data) + tokens * 96;
2216         alloc_len = scsi_4btoul(cdb->length);
2217
2218         ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
2219
2220         ctsio->kern_sg_entries = 0;
2221
2222         if (total_len < alloc_len) {
2223                 ctsio->residual = alloc_len - total_len;
2224                 ctsio->kern_data_len = total_len;
2225                 ctsio->kern_total_len = total_len;
2226         } else {
2227                 ctsio->residual = 0;
2228                 ctsio->kern_data_len = alloc_len;
2229                 ctsio->kern_total_len = alloc_len;
2230         }
2231         ctsio->kern_data_resid = 0;
2232         ctsio->kern_rel_offset = 0;
2233
2234         data = (struct scsi_report_all_rod_tokens_data *)ctsio->kern_data_ptr;
2235         i = 0;
2236         mtx_lock(&control_softc->ctl_lock);
2237         TAILQ_FOREACH(token, &control_softc->tpc_tokens, links) {
2238                 if (i >= tokens)
2239                         break;
2240                 memcpy(&data->rod_management_token_list[i * 96],
2241                     token->token, 96);
2242                 i++;
2243         }
2244         mtx_unlock(&control_softc->ctl_lock);
2245         scsi_ulto4b(sizeof(*data) - 4 + i * 96, data->available_data);
2246 /*
2247         printf("RART tokens=%d\n", i);
2248 */
2249         ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
2250         ctsio->be_move_done = ctl_config_move_done;
2251
2252         ctl_datamove((union ctl_io *)ctsio);
2253         return (retval);
2254 }
2255