40
41#include <sys/param.h>
42#include <sys/queue.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/lock.h>
46#include <sys/mutex.h>
47#include <sys/condvar.h>
48#include <sys/malloc.h>
49#include <sys/bus.h>
50#include <sys/endian.h>
51#include <sys/sbuf.h>
52#include <sys/sysctl.h>
53#include <sys/types.h>
54#include <sys/systm.h>
55#include <machine/bus.h>
56
57#include <cam/cam.h>
58#include <cam/cam_ccb.h>
59#include <cam/cam_periph.h>
60#include <cam/cam_queue.h>
61#include <cam/cam_xpt_periph.h>
62#include <cam/cam_debug.h>
63#include <cam/cam_sim.h>
64#include <cam/cam_xpt.h>
65
66#include <cam/scsi/scsi_all.h>
67#include <cam/scsi/scsi_message.h>
68
69#include <cam/ctl/ctl_io.h>
70#include <cam/ctl/ctl.h>
71#include <cam/ctl/ctl_frontend.h>
72#include <cam/ctl/ctl_util.h>
73#include <cam/ctl/ctl_error.h>
74
75struct ctlfe_softc {
76 struct ctl_port port;
77 path_id_t path_id;
78 u_int maxio;
79 struct cam_sim *sim;
80 char port_name[DEV_IDLEN];
81 struct mtx lun_softc_mtx;
82 STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list;
83 STAILQ_ENTRY(ctlfe_softc) links;
84};
85
86STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list;
87struct mtx ctlfe_list_mtx;
88static char ctlfe_mtx_desc[] = "ctlfelist";
89#ifdef CTLFE_INIT_ENABLE
90static int ctlfe_max_targets = 1;
91static int ctlfe_num_targets = 0;
92#endif
93
94typedef enum {
95 CTLFE_LUN_NONE = 0x00,
96 CTLFE_LUN_WILDCARD = 0x01
97} ctlfe_lun_flags;
98
99struct ctlfe_lun_softc {
100 struct ctlfe_softc *parent_softc;
101 struct cam_periph *periph;
102 ctlfe_lun_flags flags;
103 uint64_t ccbs_alloced;
104 uint64_t ccbs_freed;
105 uint64_t ctios_sent;
106 uint64_t ctios_returned;
107 uint64_t atios_sent;
108 uint64_t atios_returned;
109 uint64_t inots_sent;
110 uint64_t inots_returned;
111 /* bus_dma_tag_t dma_tag; */
112 TAILQ_HEAD(, ccb_hdr) work_queue;
113 STAILQ_ENTRY(ctlfe_lun_softc) links;
114};
115
116typedef enum {
117 CTLFE_CMD_NONE = 0x00,
118 CTLFE_CMD_PIECEWISE = 0x01
119} ctlfe_cmd_flags;
120
121/*
122 * The size limit of this structure is CTL_PORT_PRIV_SIZE, from ctl_io.h.
123 * Currently that is 600 bytes.
124 */
125struct ctlfe_lun_cmd_info {
126 int cur_transfer_index;
127 size_t cur_transfer_off;
128 ctlfe_cmd_flags flags;
129 /*
130 * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16
131 * bytes on amd64. So with 32 elements, this is 256 bytes on
132 * i386 and 512 bytes on amd64.
133 */
134#define CTLFE_MAX_SEGS 32
135 bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS];
136};
137CTASSERT(sizeof(struct ctlfe_lun_cmd_info) <= CTL_PORT_PRIV_SIZE);
138
139/*
140 * When we register the adapter/bus, request that this many ctl_ios be
141 * allocated. This should be the maximum supported by the adapter, but we
142 * currently don't have a way to get that back from the path inquiry.
143 * XXX KDM add that to the path inquiry.
144 */
145#define CTLFE_REQ_CTL_IO 4096
146/*
147 * Number of Accept Target I/O CCBs to allocate and queue down to the
148 * adapter per LUN.
149 * XXX KDM should this be controlled by CTL?
150 */
151#define CTLFE_ATIO_PER_LUN 1024
152/*
153 * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to
154 * allocate and queue down to the adapter per LUN.
155 * XXX KDM should this be controlled by CTL?
156 */
157#define CTLFE_IN_PER_LUN 1024
158
159/*
160 * Timeout (in seconds) on CTIO CCB allocation for doing a DMA or sending
161 * status to the initiator. The SIM is expected to have its own timeouts,
162 * so we're not putting this timeout around the CCB execution time. The
163 * SIM should timeout and let us know if it has an issue.
164 */
165#define CTLFE_DMA_TIMEOUT 60
166
167/*
168 * Turn this on to enable extra debugging prints.
169 */
170#if 0
171#define CTLFE_DEBUG
172#endif
173
174/*
175 * Use randomly assigned WWNN/WWPN values. This is to work around an issue
176 * in the FreeBSD initiator that makes it unable to rescan the target if
177 * the target gets rebooted and the WWNN/WWPN stay the same.
178 */
179#if 0
180#define RANDOM_WWNN
181#endif
182
183MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface");
184
185#define io_ptr ppriv_ptr0
186
187/* This is only used in the CTIO */
188#define ccb_atio ppriv_ptr1
189
190int ctlfeinitialize(void);
191void ctlfeshutdown(void);
192static periph_init_t ctlfeperiphinit;
193static void ctlfeasync(void *callback_arg, uint32_t code,
194 struct cam_path *path, void *arg);
195static periph_ctor_t ctlferegister;
196static periph_oninv_t ctlfeoninvalidate;
197static periph_dtor_t ctlfecleanup;
198static periph_start_t ctlfestart;
199static void ctlfedone(struct cam_periph *periph,
200 union ccb *done_ccb);
201
202static void ctlfe_onoffline(void *arg, int online);
203static void ctlfe_online(void *arg);
204static void ctlfe_offline(void *arg);
205static int ctlfe_lun_enable(void *arg, struct ctl_id targ_id,
206 int lun_id);
207static int ctlfe_lun_disable(void *arg, struct ctl_id targ_id,
208 int lun_id);
209static void ctlfe_dump_sim(struct cam_sim *sim);
210static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc);
211static void ctlfe_datamove(union ctl_io *io);
212static void ctlfe_done(union ctl_io *io);
213static void ctlfe_dump(void);
214
215static struct periph_driver ctlfe_driver =
216{
217 ctlfeperiphinit, "ctl",
218 TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0,
219 CAM_PERIPH_DRV_EARLY
220};
221
222static struct ctl_frontend ctlfe_frontend =
223{
224 .name = "camtgt",
225 .init = ctlfeinitialize,
226 .fe_dump = ctlfe_dump,
227 .shutdown = ctlfeshutdown,
228};
229CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend);
230
231extern struct ctl_softc *control_softc;
232
233void
234ctlfeshutdown(void)
235{
236 return;
237}
238
239int
240ctlfeinitialize(void)
241{
242
243 STAILQ_INIT(&ctlfe_softc_list);
244 mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF);
245 periphdriver_register(&ctlfe_driver);
246 return (0);
247}
248
249void
250ctlfeperiphinit(void)
251{
252 cam_status status;
253
254 status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED |
255 AC_CONTRACT, ctlfeasync, NULL, NULL);
256 if (status != CAM_REQ_CMP) {
257 printf("ctl: Failed to attach async callback due to CAM "
258 "status 0x%x!\n", status);
259 }
260}
261
262static void
263ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
264{
265 struct ctlfe_softc *softc;
266
267#ifdef CTLFEDEBUG
268 printf("%s: entered\n", __func__);
269#endif
270
271 mtx_lock(&ctlfe_list_mtx);
272 STAILQ_FOREACH(softc, &ctlfe_softc_list, links) {
273 if (softc->path_id == xpt_path_path_id(path))
274 break;
275 }
276 mtx_unlock(&ctlfe_list_mtx);
277
278 /*
279 * When a new path gets registered, and it is capable of target
280 * mode, go ahead and attach. Later on, we may need to be more
281 * selective, but for now this will be sufficient.
282 */
283 switch (code) {
284 case AC_PATH_REGISTERED: {
285 struct ctl_port *port;
286 struct ccb_pathinq *cpi;
287 int retval;
288
289 cpi = (struct ccb_pathinq *)arg;
290
291 /* Don't attach if it doesn't support target mode */
292 if ((cpi->target_sprt & PIT_PROCESSOR) == 0) {
293#ifdef CTLFEDEBUG
294 printf("%s: SIM %s%d doesn't support target mode\n",
295 __func__, cpi->dev_name, cpi->unit_number);
296#endif
297 break;
298 }
299
300 if (softc != NULL) {
301#ifdef CTLFEDEBUG
302 printf("%s: CTL port for CAM path %u already exists\n",
303 __func__, xpt_path_path_id(path));
304#endif
305 break;
306 }
307
308#ifdef CTLFE_INIT_ENABLE
309 if (ctlfe_num_targets >= ctlfe_max_targets) {
310 union ccb *ccb;
311
312 ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP,
313 M_NOWAIT | M_ZERO);
314 if (ccb == NULL) {
315 printf("%s: unable to malloc CCB!\n", __func__);
316 return;
317 }
318 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE);
319
320 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
321 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
322 ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR;
323
324 xpt_action(ccb);
325
326 if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
327 CAM_REQ_CMP) {
328 printf("%s: SIM %s%d (path id %d) initiator "
329 "enable failed with status %#x\n",
330 __func__, cpi->dev_name,
331 cpi->unit_number, cpi->ccb_h.path_id,
332 ccb->ccb_h.status);
333 } else {
334 printf("%s: SIM %s%d (path id %d) initiator "
335 "enable succeeded\n",
336 __func__, cpi->dev_name,
337 cpi->unit_number, cpi->ccb_h.path_id);
338 }
339
340 free(ccb, M_TEMP);
341
342 break;
343 } else {
344 ctlfe_num_targets++;
345 }
346
347 printf("%s: ctlfe_num_targets = %d\n", __func__,
348 ctlfe_num_targets);
349#endif /* CTLFE_INIT_ENABLE */
350
351 /*
352 * We're in an interrupt context here, so we have to
353 * use M_NOWAIT. Of course this means trouble if we
354 * can't allocate memory.
355 */
356 softc = malloc(sizeof(*softc), M_CTLFE, M_NOWAIT | M_ZERO);
357 if (softc == NULL) {
358 printf("%s: unable to malloc %zd bytes for softc\n",
359 __func__, sizeof(*softc));
360 return;
361 }
362
363 softc->path_id = cpi->ccb_h.path_id;
364 softc->sim = xpt_path_sim(path);
365 if (cpi->maxio != 0)
366 softc->maxio = cpi->maxio;
367 else
368 softc->maxio = DFLTPHYS;
369 mtx_init(&softc->lun_softc_mtx, "LUN softc mtx", NULL, MTX_DEF);
370 STAILQ_INIT(&softc->lun_softc_list);
371
372 port = &softc->port;
373 port->frontend = &ctlfe_frontend;
374
375 /*
376 * XXX KDM should we be more accurate here ?
377 */
378 if (cpi->transport == XPORT_FC)
379 port->port_type = CTL_PORT_FC;
380 else if (cpi->transport == XPORT_SAS)
381 port->port_type = CTL_PORT_SAS;
382 else
383 port->port_type = CTL_PORT_SCSI;
384
385 /* XXX KDM what should the real number be here? */
386 port->num_requested_ctl_io = 4096;
387 snprintf(softc->port_name, sizeof(softc->port_name),
388 "%s%d", cpi->dev_name, cpi->unit_number);
389 /*
390 * XXX KDM it would be nice to allocate storage in the
391 * frontend structure itself.
392 */
393 port->port_name = softc->port_name;
394 port->physical_port = cpi->bus_id;
395 port->virtual_port = 0;
396 port->port_online = ctlfe_online;
397 port->port_offline = ctlfe_offline;
398 port->onoff_arg = softc;
399 port->lun_enable = ctlfe_lun_enable;
400 port->lun_disable = ctlfe_lun_disable;
401 port->targ_lun_arg = softc;
402 port->fe_datamove = ctlfe_datamove;
403 port->fe_done = ctlfe_done;
404 /*
405 * XXX KDM the path inquiry doesn't give us the maximum
406 * number of targets supported.
407 */
408 port->max_targets = cpi->max_target;
409 port->max_target_id = cpi->max_target;
410
411 /*
412 * XXX KDM need to figure out whether we're the master or
413 * slave.
414 */
415#ifdef CTLFEDEBUG
416 printf("%s: calling ctl_port_register() for %s%d\n",
417 __func__, cpi->dev_name, cpi->unit_number);
418#endif
419 retval = ctl_port_register(port);
420 if (retval != 0) {
421 printf("%s: ctl_port_register() failed with "
422 "error %d!\n", __func__, retval);
423 mtx_destroy(&softc->lun_softc_mtx);
424 free(softc, M_CTLFE);
425 break;
426 } else {
427 mtx_lock(&ctlfe_list_mtx);
428 STAILQ_INSERT_TAIL(&ctlfe_softc_list, softc, links);
429 mtx_unlock(&ctlfe_list_mtx);
430 }
431
432 break;
433 }
434 case AC_PATH_DEREGISTERED: {
435
436 if (softc != NULL) {
437 /*
438 * XXX KDM are we certain at this point that there
439 * are no outstanding commands for this frontend?
440 */
441 mtx_lock(&ctlfe_list_mtx);
442 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc,
443 links);
444 mtx_unlock(&ctlfe_list_mtx);
445 ctl_port_deregister(&softc->port);
446 mtx_destroy(&softc->lun_softc_mtx);
447 free(softc, M_CTLFE);
448 }
449 break;
450 }
451 case AC_CONTRACT: {
452 struct ac_contract *ac;
453
454 ac = (struct ac_contract *)arg;
455
456 switch (ac->contract_number) {
457 case AC_CONTRACT_DEV_CHG: {
458 struct ac_device_changed *dev_chg;
459 int retval;
460
461 dev_chg = (struct ac_device_changed *)ac->contract_data;
462
463 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n",
464 __func__, dev_chg->wwpn, dev_chg->port,
465 xpt_path_path_id(path), dev_chg->target,
466 (dev_chg->arrived == 0) ? "left" : "arrived");
467
468 if (softc == NULL) {
469 printf("%s: CTL port for CAM path %u not "
470 "found!\n", __func__,
471 xpt_path_path_id(path));
472 break;
473 }
474 if (dev_chg->arrived != 0) {
475 retval = ctl_add_initiator(&softc->port,
476 dev_chg->target, dev_chg->wwpn, NULL);
477 } else {
478 retval = ctl_remove_initiator(&softc->port,
479 dev_chg->target);
480 }
481
482 if (retval < 0) {
483 printf("%s: could not %s port %d iid %u "
484 "WWPN %#jx!\n", __func__,
485 (dev_chg->arrived != 0) ? "add" :
486 "remove", softc->port.targ_port,
487 dev_chg->target,
488 (uintmax_t)dev_chg->wwpn);
489 }
490 break;
491 }
492 default:
493 printf("%s: unsupported contract number %ju\n",
494 __func__, (uintmax_t)ac->contract_number);
495 break;
496 }
497 break;
498 }
499 default:
500 break;
501 }
502}
503
504static cam_status
505ctlferegister(struct cam_periph *periph, void *arg)
506{
507 struct ctlfe_softc *bus_softc;
508 struct ctlfe_lun_softc *softc;
509 union ccb en_lun_ccb;
510 cam_status status;
511 int i;
512
513 softc = (struct ctlfe_lun_softc *)arg;
514 bus_softc = softc->parent_softc;
515
516 TAILQ_INIT(&softc->work_queue);
517 softc->periph = periph;
518 periph->softc = softc;
519
520 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
521 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
522 en_lun_ccb.cel.grp6_len = 0;
523 en_lun_ccb.cel.grp7_len = 0;
524 en_lun_ccb.cel.enable = 1;
525 xpt_action(&en_lun_ccb);
526 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
527 if (status != CAM_REQ_CMP) {
528 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n",
529 __func__, en_lun_ccb.ccb_h.status);
530 return (status);
531 }
532
533 status = CAM_REQ_CMP;
534
535 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) {
536 union ccb *new_ccb;
537 union ctl_io *new_io;
538
539 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
540 M_ZERO|M_NOWAIT);
541 if (new_ccb == NULL) {
542 status = CAM_RESRC_UNAVAIL;
543 break;
544 }
545 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref);
546 if (new_io == NULL) {
547 free(new_ccb, M_CTLFE);
548 status = CAM_RESRC_UNAVAIL;
549 break;
550 }
551 new_ccb->ccb_h.io_ptr = new_io;
552
553 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
554 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO;
555 new_ccb->ccb_h.cbfcnp = ctlfedone;
556 new_ccb->ccb_h.flags |= CAM_UNLOCKED;
557 xpt_action(new_ccb);
558 softc->atios_sent++;
559 status = new_ccb->ccb_h.status;
560 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
561 ctl_free_io(new_io);
562 free(new_ccb, M_CTLFE);
563 break;
564 }
565 }
566
567 status = cam_periph_acquire(periph);
568 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
569 xpt_print(periph->path, "%s: could not acquire reference "
570 "count, status = %#x\n", __func__, status);
571 return (status);
572 }
573
574 if (i == 0) {
575 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, "
576 "status 0x%x\n", __func__, status);
577 return (CAM_REQ_CMP_ERR);
578 }
579
580 for (i = 0; i < CTLFE_IN_PER_LUN; i++) {
581 union ccb *new_ccb;
582 union ctl_io *new_io;
583
584 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
585 M_ZERO|M_NOWAIT);
586 if (new_ccb == NULL) {
587 status = CAM_RESRC_UNAVAIL;
588 break;
589 }
590 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref);
591 if (new_io == NULL) {
592 free(new_ccb, M_CTLFE);
593 status = CAM_RESRC_UNAVAIL;
594 break;
595 }
596 new_ccb->ccb_h.io_ptr = new_io;
597
598 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
599 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
600 new_ccb->ccb_h.cbfcnp = ctlfedone;
601 new_ccb->ccb_h.flags |= CAM_UNLOCKED;
602 xpt_action(new_ccb);
603 softc->inots_sent++;
604 status = new_ccb->ccb_h.status;
605 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
606 /*
607 * Note that we don't free the CCB here. If the
608 * status is not CAM_REQ_INPROG, then we're
609 * probably talking to a SIM that says it is
610 * target-capable but doesn't support the
611 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the
612 * older API. In that case, it'll call xpt_done()
613 * on the CCB, and we need to free it in our done
614 * routine as a result.
615 */
616 break;
617 }
618 }
619 if ((i == 0)
620 || (status != CAM_REQ_INPROG)) {
621 xpt_print(periph->path, "%s: could not allocate immediate "
622 "notify CCBs, status 0x%x\n", __func__, status);
623 return (CAM_REQ_CMP_ERR);
624 }
625 return (CAM_REQ_CMP);
626}
627
628static void
629ctlfeoninvalidate(struct cam_periph *periph)
630{
631 union ccb en_lun_ccb;
632 cam_status status;
633 struct ctlfe_softc *bus_softc;
634 struct ctlfe_lun_softc *softc;
635
636 softc = (struct ctlfe_lun_softc *)periph->softc;
637
638 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
639 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
640 en_lun_ccb.cel.grp6_len = 0;
641 en_lun_ccb.cel.grp7_len = 0;
642 en_lun_ccb.cel.enable = 0;
643 xpt_action(&en_lun_ccb);
644 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
645 if (status != CAM_REQ_CMP) {
646 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n",
647 __func__, en_lun_ccb.ccb_h.status);
648 /*
649 * XXX KDM what do we do now?
650 */
651 }
652 xpt_print(periph->path, "LUN removed, %ju ATIOs outstanding, %ju "
653 "INOTs outstanding, %d refs\n", softc->atios_sent -
654 softc->atios_returned, softc->inots_sent -
655 softc->inots_returned, periph->refcount);
656
657 bus_softc = softc->parent_softc;
658 mtx_lock(&bus_softc->lun_softc_mtx);
659 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links);
660 mtx_unlock(&bus_softc->lun_softc_mtx);
661}
662
663static void
664ctlfecleanup(struct cam_periph *periph)
665{
666 struct ctlfe_lun_softc *softc;
667
668 xpt_print(periph->path, "%s: Called\n", __func__);
669
670 softc = (struct ctlfe_lun_softc *)periph->softc;
671
672 /*
673 * XXX KDM is there anything else that needs to be done here?
674 */
675
676 free(softc, M_CTLFE);
677}
678
679static void
680ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io,
681 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len,
682 u_int16_t *sglist_cnt)
683{
684 struct ctlfe_softc *bus_softc;
685 struct ctlfe_lun_cmd_info *cmd_info;
686 struct ctl_sg_entry *ctl_sglist;
687 bus_dma_segment_t *cam_sglist;
688 size_t off;
689 int i, idx;
690
691 cmd_info = (struct ctlfe_lun_cmd_info *)io->io_hdr.port_priv;
692 bus_softc = softc->parent_softc;
693
694 /*
695 * Set the direction, relative to the initiator.
696 */
697 *flags &= ~CAM_DIR_MASK;
698 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN)
699 *flags |= CAM_DIR_IN;
700 else
701 *flags |= CAM_DIR_OUT;
702
703 *flags &= ~CAM_DATA_MASK;
704 idx = cmd_info->cur_transfer_index;
705 off = cmd_info->cur_transfer_off;
706 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE;
707 if (io->scsiio.kern_sg_entries == 0) {
708 /* No S/G list. */
709 *data_ptr = io->scsiio.kern_data_ptr + off;
710 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) {
711 *dxfer_len = io->scsiio.kern_data_len - off;
712 } else {
713 *dxfer_len = bus_softc->maxio;
714 cmd_info->cur_transfer_index = -1;
715 cmd_info->cur_transfer_off = bus_softc->maxio;
716 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
717 }
718 *sglist_cnt = 0;
719
720 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
721 *flags |= CAM_DATA_PADDR;
722 else
723 *flags |= CAM_DATA_VADDR;
724 } else {
725 /* S/G list with physical or virtual pointers. */
726 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr;
727 cam_sglist = cmd_info->cam_sglist;
728 *dxfer_len = 0;
729 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) {
730 cam_sglist[i].ds_addr = (bus_addr_t)ctl_sglist[i + idx].addr + off;
731 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) {
732 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off;
733 *dxfer_len += cam_sglist[i].ds_len;
734 } else {
735 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len;
736 cmd_info->cur_transfer_index = idx + i;
737 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off;
738 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
739 *dxfer_len += cam_sglist[i].ds_len;
740 if (ctl_sglist[i].len != 0)
741 i++;
742 break;
743 }
744 if (i == (CTLFE_MAX_SEGS - 1) &&
745 idx + i < (io->scsiio.kern_sg_entries - 1)) {
746 cmd_info->cur_transfer_index = idx + i + 1;
747 cmd_info->cur_transfer_off = 0;
748 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
749 i++;
750 break;
751 }
752 off = 0;
753 }
754 *sglist_cnt = i;
755 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
756 *flags |= CAM_DATA_SG_PADDR;
757 else
758 *flags |= CAM_DATA_SG;
759 *data_ptr = (uint8_t *)cam_sglist;
760 }
761}
762
763static void
764ctlfestart(struct cam_periph *periph, union ccb *start_ccb)
765{
766 struct ctlfe_lun_softc *softc;
767 struct ctlfe_lun_cmd_info *cmd_info;
768 struct ccb_hdr *ccb_h;
769 struct ccb_accept_tio *atio;
770 struct ccb_scsiio *csio;
771 uint8_t *data_ptr;
772 uint32_t dxfer_len;
773 ccb_flags flags;
774 union ctl_io *io;
775 uint8_t scsi_status;
776
777 softc = (struct ctlfe_lun_softc *)periph->softc;
778 softc->ccbs_alloced++;
779
780 ccb_h = TAILQ_FIRST(&softc->work_queue);
781 if (ccb_h == NULL) {
782 softc->ccbs_freed++;
783 xpt_release_ccb(start_ccb);
784 return;
785 }
786
787 /* Take the ATIO off the work queue */
788 TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe);
789 atio = (struct ccb_accept_tio *)ccb_h;
790 io = (union ctl_io *)ccb_h->io_ptr;
791 csio = &start_ccb->csio;
792
793 flags = atio->ccb_h.flags &
794 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK);
|
901 if (csio->sense_len != 0) {
902 csio->sense_data = io->scsiio.sense_data;
903 flags |= CAM_SEND_SENSE;
904 } else if (scsi_status == SCSI_STATUS_CHECK_COND) {
905 xpt_print(periph->path, "%s: check condition "
906 "with no sense\n", __func__);
907 }
908 }
909
910#ifdef CTLFEDEBUG
911 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__,
912 (flags & CAM_SEND_STATUS) ? "done" : "datamove",
913 atio->tag_id, flags, data_ptr, dxfer_len);
914#endif
915
916 /*
917 * Valid combinations:
918 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0,
919 * sglist_cnt = 0
920 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0,
921 * sglist_cnt = 0
922 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0,
923 * sglist_cnt != 0
924 */
925#ifdef CTLFEDEBUG
926 if (((flags & CAM_SEND_STATUS)
927 && (((flags & CAM_DATA_SG) != 0)
928 || (dxfer_len != 0)
929 || (csio->sglist_cnt != 0)))
930 || (((flags & CAM_SEND_STATUS) == 0)
931 && (dxfer_len == 0))
932 || ((flags & CAM_DATA_SG)
933 && (csio->sglist_cnt == 0))
934 || (((flags & CAM_DATA_SG) == 0)
935 && (csio->sglist_cnt != 0))) {
936 printf("%s: tag %04x cdb %02x flags %#x dxfer_len "
937 "%d sg %u\n", __func__, atio->tag_id,
938 atio->cdb_io.cdb_bytes[0], flags, dxfer_len,
939 csio->sglist_cnt);
940 printf("%s: tag %04x io status %#x\n", __func__,
941 atio->tag_id, io->io_hdr.status);
942 }
943#endif
944 cam_fill_ctio(csio,
945 /*retries*/ 2,
946 ctlfedone,
947 flags,
948 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0,
949 atio->tag_id,
950 atio->init_id,
951 scsi_status,
952 /*data_ptr*/ data_ptr,
953 /*dxfer_len*/ dxfer_len,
954 /*timeout*/ 5 * 1000);
955 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
956 start_ccb->ccb_h.ccb_atio = atio;
957 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED)
958 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
959 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED);
960
961 softc->ctios_sent++;
962
963 cam_periph_unlock(periph);
964 xpt_action(start_ccb);
965 cam_periph_lock(periph);
966
967 if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
968 cam_release_devq(periph->path,
969 /*relsim_flags*/0,
970 /*reduction*/0,
971 /*timeout*/0,
972 /*getcount_only*/0);
973 atio->ccb_h.status &= ~CAM_DEV_QFRZN;
974 }
975
976 /*
977 * If we still have work to do, ask for another CCB.
978 */
979 if (!TAILQ_EMPTY(&softc->work_queue))
980 xpt_schedule(periph, /*priority*/ 1);
981}
982
983static void
984ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb)
985{
986 struct ctlfe_lun_softc *softc;
987
988 softc = (struct ctlfe_lun_softc *)periph->softc;
989
990 switch (ccb->ccb_h.func_code) {
991 case XPT_ACCEPT_TARGET_IO:
992 softc->atios_returned++;
993 break;
994 case XPT_IMMEDIATE_NOTIFY:
995 case XPT_NOTIFY_ACKNOWLEDGE:
996 softc->inots_returned++;
997 break;
998 default:
999 break;
1000 }
1001
1002 ctl_free_io(ccb->ccb_h.io_ptr);
1003 free(ccb, M_CTLFE);
1004
1005 KASSERT(softc->atios_returned <= softc->atios_sent, ("%s: "
1006 "atios_returned %ju > atios_sent %ju", __func__,
1007 softc->atios_returned, softc->atios_sent));
1008 KASSERT(softc->inots_returned <= softc->inots_sent, ("%s: "
1009 "inots_returned %ju > inots_sent %ju", __func__,
1010 softc->inots_returned, softc->inots_sent));
1011
1012 /*
1013 * If we have received all of our CCBs, we can release our
1014 * reference on the peripheral driver. It will probably go away
1015 * now.
1016 */
1017 if ((softc->atios_returned == softc->atios_sent)
1018 && (softc->inots_returned == softc->inots_sent)) {
1019 cam_periph_release_locked(periph);
1020 }
1021}
1022
1023static int
1024ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset)
1025{
1026 uint64_t lba;
1027 uint32_t num_blocks, nbc;
1028 uint8_t *cmdbyt = (atio->ccb_h.flags & CAM_CDB_POINTER)?
1029 atio->cdb_io.cdb_ptr : atio->cdb_io.cdb_bytes;
1030
1031 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */
1032
1033 switch (cmdbyt[0]) {
1034 case READ_6:
1035 case WRITE_6:
1036 {
1037 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt;
1038 lba = scsi_3btoul(cdb->addr);
1039 lba &= 0x1fffff;
1040 num_blocks = cdb->length;
1041 if (num_blocks == 0)
1042 num_blocks = 256;
1043 lba += nbc;
1044 num_blocks -= nbc;
1045 scsi_ulto3b(lba, cdb->addr);
1046 cdb->length = num_blocks;
1047 break;
1048 }
1049 case READ_10:
1050 case WRITE_10:
1051 {
1052 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt;
1053 lba = scsi_4btoul(cdb->addr);
1054 num_blocks = scsi_2btoul(cdb->length);
1055 lba += nbc;
1056 num_blocks -= nbc;
1057 scsi_ulto4b(lba, cdb->addr);
1058 scsi_ulto2b(num_blocks, cdb->length);
1059 break;
1060 }
1061 case READ_12:
1062 case WRITE_12:
1063 {
1064 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt;
1065 lba = scsi_4btoul(cdb->addr);
1066 num_blocks = scsi_4btoul(cdb->length);
1067 lba += nbc;
1068 num_blocks -= nbc;
1069 scsi_ulto4b(lba, cdb->addr);
1070 scsi_ulto4b(num_blocks, cdb->length);
1071 break;
1072 }
1073 case READ_16:
1074 case WRITE_16:
1075 case WRITE_ATOMIC_16:
1076 {
1077 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt;
1078 lba = scsi_8btou64(cdb->addr);
1079 num_blocks = scsi_4btoul(cdb->length);
1080 lba += nbc;
1081 num_blocks -= nbc;
1082 scsi_u64to8b(lba, cdb->addr);
1083 scsi_ulto4b(num_blocks, cdb->length);
1084 break;
1085 }
1086 default:
1087 return -1;
1088 }
1089 return (0);
1090}
1091
1092static void
1093ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
1094{
1095 struct ctlfe_lun_softc *softc;
1096 struct ctlfe_softc *bus_softc;
1097 struct ccb_accept_tio *atio = NULL;
1098 union ctl_io *io = NULL;
1099 struct mtx *mtx;
1100
1101 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0,
1102 ("CCB in ctlfedone() without CAM_UNLOCKED flag"));
1103#ifdef CTLFE_DEBUG
1104 printf("%s: entered, func_code = %#x\n", __func__,
1105 done_ccb->ccb_h.func_code);
1106#endif
1107
1108 softc = (struct ctlfe_lun_softc *)periph->softc;
1109 bus_softc = softc->parent_softc;
1110 mtx = cam_periph_mtx(periph);
1111 mtx_lock(mtx);
1112
1113 /*
1114 * If the peripheral is invalid, ATIOs and immediate notify CCBs
1115 * need to be freed. Most of the ATIOs and INOTs that come back
1116 * will be CCBs that are being returned from the SIM as a result of
1117 * our disabling the LUN.
1118 *
1119 * Other CCB types are handled in their respective cases below.
1120 */
1121 if (periph->flags & CAM_PERIPH_INVALID) {
1122 switch (done_ccb->ccb_h.func_code) {
1123 case XPT_ACCEPT_TARGET_IO:
1124 case XPT_IMMEDIATE_NOTIFY:
1125 case XPT_NOTIFY_ACKNOWLEDGE:
1126 ctlfe_free_ccb(periph, done_ccb);
1127 goto out;
1128 default:
1129 break;
1130 }
1131
1132 }
1133 switch (done_ccb->ccb_h.func_code) {
1134 case XPT_ACCEPT_TARGET_IO: {
1135
1136 atio = &done_ccb->atio;
1137
1138 softc->atios_returned++;
1139
1140 resubmit:
1141 /*
1142 * Allocate a ctl_io, pass it to CTL, and wait for the
1143 * datamove or done.
1144 */
1145 mtx_unlock(mtx);
1146 io = done_ccb->ccb_h.io_ptr;
1147 ctl_zero_io(io);
1148
1149 /* Save pointers on both sides */
1150 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = done_ccb;
1151 done_ccb->ccb_h.io_ptr = io;
1152
1153 /*
1154 * Only SCSI I/O comes down this path, resets, etc. come
1155 * down the immediate notify path below.
1156 */
1157 io->io_hdr.io_type = CTL_IO_SCSI;
1158 io->io_hdr.nexus.initid.id = atio->init_id;
1159 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port;
1160 io->io_hdr.nexus.targ_target.id = atio->ccb_h.target_id;
1161 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun;
1162 io->scsiio.tag_num = atio->tag_id;
1163 switch (atio->tag_action) {
1164 case CAM_TAG_ACTION_NONE:
1165 io->scsiio.tag_type = CTL_TAG_UNTAGGED;
1166 break;
1167 case MSG_SIMPLE_TASK:
1168 io->scsiio.tag_type = CTL_TAG_SIMPLE;
1169 break;
1170 case MSG_HEAD_OF_QUEUE_TASK:
1171 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE;
1172 break;
1173 case MSG_ORDERED_TASK:
1174 io->scsiio.tag_type = CTL_TAG_ORDERED;
1175 break;
1176 case MSG_ACA_TASK:
1177 io->scsiio.tag_type = CTL_TAG_ACA;
1178 break;
1179 default:
1180 io->scsiio.tag_type = CTL_TAG_UNTAGGED;
1181 printf("%s: unhandled tag type %#x!!\n", __func__,
1182 atio->tag_action);
1183 break;
1184 }
1185 if (atio->cdb_len > sizeof(io->scsiio.cdb)) {
1186 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n",
1187 __func__, atio->cdb_len, sizeof(io->scsiio.cdb));
1188 }
1189 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb));
1190 bcopy(atio->cdb_io.cdb_bytes, io->scsiio.cdb,
1191 io->scsiio.cdb_len);
1192
1193#ifdef CTLFEDEBUG
1194 printf("%s: %ju:%d:%ju:%d: tag %04x CDB %02x\n", __func__,
1195 (uintmax_t)io->io_hdr.nexus.initid.id,
1196 io->io_hdr.nexus.targ_port,
1197 (uintmax_t)io->io_hdr.nexus.targ_target.id,
1198 io->io_hdr.nexus.targ_lun,
1199 io->scsiio.tag_num, io->scsiio.cdb[0]);
1200#endif
1201
1202 ctl_queue(io);
1203 return;
1204 }
1205 case XPT_CONT_TARGET_IO: {
1206 int srr = 0;
1207 uint32_t srr_off = 0;
1208
1209 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio;
1210 io = (union ctl_io *)atio->ccb_h.io_ptr;
1211
1212 softc->ctios_returned++;
1213#ifdef CTLFEDEBUG
1214 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n",
1215 __func__, atio->tag_id, done_ccb->ccb_h.flags);
1216#endif
1217 /*
1218 * Handle SRR case were the data pointer is pushed back hack
1219 */
1220 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV
1221 && done_ccb->csio.msg_ptr != NULL
1222 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED
1223 && done_ccb->csio.msg_ptr[1] == 5
1224 && done_ccb->csio.msg_ptr[2] == 0) {
1225 srr = 1;
1226 srr_off =
1227 (done_ccb->csio.msg_ptr[3] << 24)
1228 | (done_ccb->csio.msg_ptr[4] << 16)
1229 | (done_ccb->csio.msg_ptr[5] << 8)
1230 | (done_ccb->csio.msg_ptr[6]);
1231 }
1232
1233 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) {
1234 /*
1235 * If status was being sent, the back end data is now
1236 * history. Hack it up and resubmit a new command with
1237 * the CDB adjusted. If the SIM does the right thing,
1238 * all of the resid math should work.
1239 */
1240 softc->ccbs_freed++;
1241 xpt_release_ccb(done_ccb);
1242 if (ctlfe_adjust_cdb(atio, srr_off) == 0) {
1243 done_ccb = (union ccb *)atio;
1244 goto resubmit;
1245 }
1246 /*
1247 * Fall through to doom....
1248 */
1249 } else if (srr) {
1250 /*
1251 * If we have an srr and we're still sending data, we
1252 * should be able to adjust offsets and cycle again.
1253 */
1254 io->scsiio.kern_rel_offset =
1255 io->scsiio.ext_data_filled = srr_off;
1256 io->scsiio.ext_data_len = io->scsiio.kern_total_len -
1257 io->scsiio.kern_rel_offset;
1258 softc->ccbs_freed++;
1259 io->scsiio.io_hdr.status = CTL_STATUS_NONE;
1260 xpt_release_ccb(done_ccb);
1261 TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h,
1262 periph_links.tqe);
1263 xpt_schedule(periph, /*priority*/ 1);
1264 break;
1265 }
1266
1267 /*
1268 * If we were sending status back to the initiator, free up
1269 * resources. If we were doing a datamove, call the
1270 * datamove done routine.
1271 */
1272 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) {
1273 softc->ccbs_freed++;
1274 xpt_release_ccb(done_ccb);
1275 /*
1276 * For a wildcard attachment, commands can come in
1277 * with a specific target/lun. Reset the target
1278 * and LUN fields back to the wildcard values before
1279 * we send them back down to the SIM. The SIM has
1280 * a wildcard LUN enabled, not whatever target/lun
1281 * these happened to be.
1282 */
1283 if (softc->flags & CTLFE_LUN_WILDCARD) {
1284 atio->ccb_h.target_id = CAM_TARGET_WILDCARD;
1285 atio->ccb_h.target_lun = CAM_LUN_WILDCARD;
1286 }
1287 if (periph->flags & CAM_PERIPH_INVALID) {
1288 ctlfe_free_ccb(periph, (union ccb *)atio);
1289 } else {
1290 softc->atios_sent++;
1291 mtx_unlock(mtx);
1292 xpt_action((union ccb *)atio);
1293 return;
1294 }
1295 } else {
1296 struct ctlfe_lun_cmd_info *cmd_info;
1297 struct ccb_scsiio *csio;
1298
1299 csio = &done_ccb->csio;
1300 cmd_info = (struct ctlfe_lun_cmd_info *)
1301 io->io_hdr.port_priv;
1302
1303 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
1304
1305 io->scsiio.ext_data_len += csio->dxfer_len;
1306 if (io->scsiio.ext_data_len >
1307 io->scsiio.kern_total_len) {
1308 xpt_print(periph->path, "%s: tag 0x%04x "
1309 "done len %u > total %u sent %u\n",
1310 __func__, io->scsiio.tag_num,
1311 io->scsiio.ext_data_len,
1312 io->scsiio.kern_total_len,
1313 io->scsiio.ext_data_filled);
1314 }
1315 /*
1316 * Translate CAM status to CTL status. Success
1317 * does not change the overall, ctl_io status. In
1318 * that case we just set port_status to 0. If we
1319 * have a failure, though, set a data phase error
1320 * for the overall ctl_io.
1321 */
1322 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) {
1323 case CAM_REQ_CMP:
1324 io->io_hdr.port_status = 0;
1325 break;
1326 default:
1327 /*
1328 * XXX KDM we probably need to figure out a
1329 * standard set of errors that the SIM
1330 * drivers should return in the event of a
1331 * data transfer failure. A data phase
1332 * error will at least point the user to a
1333 * data transfer error of some sort.
1334 * Hopefully the SIM printed out some
1335 * additional information to give the user
1336 * a clue what happened.
1337 */
1338 io->io_hdr.port_status = 0xbad1;
1339 ctl_set_data_phase_error(&io->scsiio);
1340 /*
1341 * XXX KDM figure out residual.
1342 */
1343 break;
1344 }
1345 /*
1346 * If we had to break this S/G list into multiple
1347 * pieces, figure out where we are in the list, and
1348 * continue sending pieces if necessary.
1349 */
1350 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE)
1351 && (io->io_hdr.port_status == 0)) {
1352 ccb_flags flags;
1353 uint8_t scsi_status;
1354 uint8_t *data_ptr;
1355 uint32_t dxfer_len;
1356
1357 flags = atio->ccb_h.flags &
1358 (CAM_DIS_DISCONNECT|
1359 CAM_TAG_ACTION_VALID);
1360
1361 ctlfedata(softc, io, &flags, &data_ptr,
1362 &dxfer_len, &csio->sglist_cnt);
1363
1364 scsi_status = 0;
1365
1366 if (((flags & CAM_SEND_STATUS) == 0)
1367 && (dxfer_len == 0)) {
1368 printf("%s: tag %04x no status or "
1369 "len cdb = %02x\n", __func__,
1370 atio->tag_id,
1371 atio->cdb_io.cdb_bytes[0]);
1372 printf("%s: tag %04x io status %#x\n",
1373 __func__, atio->tag_id,
1374 io->io_hdr.status);
1375 }
1376
1377 cam_fill_ctio(csio,
1378 /*retries*/ 2,
1379 ctlfedone,
1380 flags,
1381 (flags & CAM_TAG_ACTION_VALID) ?
1382 MSG_SIMPLE_Q_TAG : 0,
1383 atio->tag_id,
1384 atio->init_id,
1385 scsi_status,
1386 /*data_ptr*/ data_ptr,
1387 /*dxfer_len*/ dxfer_len,
1388 /*timeout*/ 5 * 1000);
1389
1390 csio->ccb_h.flags |= CAM_UNLOCKED;
1391 csio->resid = 0;
1392 csio->ccb_h.ccb_atio = atio;
1393 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
1394 softc->ctios_sent++;
1395 mtx_unlock(mtx);
1396 xpt_action((union ccb *)csio);
1397 } else {
1398 /*
1399 * Release the CTIO. The ATIO will be sent back
1400 * down to the SIM once we send status.
1401 */
1402 softc->ccbs_freed++;
1403 xpt_release_ccb(done_ccb);
1404 mtx_unlock(mtx);
1405
1406 /* Call the backend move done callback */
1407 io->scsiio.be_move_done(io);
1408 }
1409 return;
1410 }
1411 break;
1412 }
1413 case XPT_IMMEDIATE_NOTIFY: {
1414 union ctl_io *io;
1415 struct ccb_immediate_notify *inot;
1416 cam_status status;
1417 int frozen, send_ctl_io;
1418
1419 inot = &done_ccb->cin1;
1420
1421 softc->inots_returned++;
1422
1423 frozen = (done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1424
1425 printf("%s: got XPT_IMMEDIATE_NOTIFY status %#x tag %#x "
1426 "seq %#x\n", __func__, inot->ccb_h.status,
1427 inot->tag_id, inot->seq_id);
1428
1429 io = done_ccb->ccb_h.io_ptr;
1430 ctl_zero_io(io);
1431
1432 send_ctl_io = 1;
1433
1434 io->io_hdr.io_type = CTL_IO_TASK;
1435 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr =done_ccb;
1436 inot->ccb_h.io_ptr = io;
1437 io->io_hdr.nexus.initid.id = inot->initiator_id;
1438 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port;
1439 io->io_hdr.nexus.targ_target.id = inot->ccb_h.target_id;
1440 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun;
1441 /* XXX KDM should this be the tag_id? */
1442 io->taskio.tag_num = inot->seq_id;
1443
1444 status = inot->ccb_h.status & CAM_STATUS_MASK;
1445 switch (status) {
1446 case CAM_SCSI_BUS_RESET:
1447 io->taskio.task_action = CTL_TASK_BUS_RESET;
1448 break;
1449 case CAM_BDR_SENT:
1450 io->taskio.task_action = CTL_TASK_TARGET_RESET;
1451 break;
1452 case CAM_MESSAGE_RECV:
1453 switch (inot->arg) {
1454 case MSG_ABORT_TASK_SET:
1455 io->taskio.task_action =
1456 CTL_TASK_ABORT_TASK_SET;
1457 break;
1458 case MSG_TARGET_RESET:
1459 io->taskio.task_action =
1460 CTL_TASK_TARGET_RESET;
1461 break;
1462 case MSG_ABORT_TASK:
1463 io->taskio.task_action =
1464 CTL_TASK_ABORT_TASK;
1465 break;
1466 case MSG_LOGICAL_UNIT_RESET:
1467 io->taskio.task_action =
1468 CTL_TASK_LUN_RESET;
1469 break;
1470 case MSG_CLEAR_TASK_SET:
1471 io->taskio.task_action =
1472 CTL_TASK_CLEAR_TASK_SET;
1473 break;
1474 case MSG_CLEAR_ACA:
1475 io->taskio.task_action =
1476 CTL_TASK_CLEAR_ACA;
1477 break;
1478 case MSG_NOOP:
1479 send_ctl_io = 0;
1480 break;
1481 default:
1482 xpt_print(periph->path,
1483 "%s: unsupported message 0x%x\n",
1484 __func__, inot->arg);
1485 send_ctl_io = 0;
1486 break;
1487 }
1488 break;
1489 case CAM_REQ_ABORTED:
1490 /*
1491 * This request was sent back by the driver.
1492 * XXX KDM what do we do here?
1493 */
1494 send_ctl_io = 0;
1495 break;
1496 case CAM_REQ_INVALID:
1497 case CAM_PROVIDE_FAIL:
1498 default:
1499 /*
1500 * We should only get here if we're talking
1501 * to a talking to a SIM that is target
1502 * capable but supports the old API. In
1503 * that case, we need to just free the CCB.
1504 * If we actually send a notify acknowledge,
1505 * it will send that back with an error as
1506 * well.
1507 */
1508
1509 if ((status != CAM_REQ_INVALID)
1510 && (status != CAM_PROVIDE_FAIL))
1511 xpt_print(periph->path,
1512 "%s: unsupported CAM status 0x%x\n",
1513 __func__, status);
1514
1515 ctlfe_free_ccb(periph, done_ccb);
1516
1517 goto out;
1518 }
1519 if (send_ctl_io != 0) {
1520 ctl_queue(io);
1521 } else {
1522 done_ccb->ccb_h.status = CAM_REQ_INPROG;
1523 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
1524 xpt_action(done_ccb);
1525 }
1526
1527 if (frozen != 0) {
1528 cam_release_devq(periph->path,
1529 /*relsim_flags*/ 0,
1530 /*opening reduction*/ 0,
1531 /*timeout*/ 0,
1532 /*getcount_only*/ 0);
1533 }
1534 break;
1535 }
1536 case XPT_NOTIFY_ACKNOWLEDGE:
1537 /*
1538 * Queue this back down to the SIM as an immediate notify.
1539 */
1540 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
1541 xpt_action(done_ccb);
1542 softc->inots_sent++;
1543 break;
1544 case XPT_SET_SIM_KNOB:
1545 case XPT_GET_SIM_KNOB:
1546 break;
1547 default:
1548 panic("%s: unexpected CCB type %#x", __func__,
1549 done_ccb->ccb_h.func_code);
1550 break;
1551 }
1552
1553out:
1554 mtx_unlock(mtx);
1555}
1556
1557static void
1558ctlfe_onoffline(void *arg, int online)
1559{
1560 struct ctlfe_softc *bus_softc;
1561 union ccb *ccb;
1562 cam_status status;
1563 struct cam_path *path;
1564 int set_wwnn;
1565
1566 bus_softc = (struct ctlfe_softc *)arg;
1567
1568 set_wwnn = 0;
1569
1570 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id,
1571 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1572 if (status != CAM_REQ_CMP) {
1573 printf("%s: unable to create path!\n", __func__);
1574 return;
1575 }
1576 ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, M_NOWAIT | M_ZERO);
1577 if (ccb == NULL) {
1578 printf("%s: unable to malloc CCB!\n", __func__);
1579 xpt_free_path(path);
1580 return;
1581 }
1582 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE);
1583
1584 /*
1585 * Copan WWN format:
1586 *
1587 * Bits 63-60: 0x5 NAA, IEEE registered name
1588 * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan
1589 * Bits 35-12: Copan SSN (Sequential Serial Number)
1590 * Bits 11-8: Type of port:
1591 * 1 == N-Port
1592 * 2 == F-Port
1593 * 3 == NL-Port
1594 * Bits 7-0: 0 == Node Name, >0 == Port Number
1595 */
1596
1597 if (online != 0) {
1598
1599 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB;
1600
1601
1602 xpt_action(ccb);
1603
1604
1605 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){
1606#ifdef RANDOM_WWNN
1607 uint64_t random_bits;
1608#endif
1609
1610 printf("%s: %s current WWNN %#jx\n", __func__,
1611 bus_softc->port_name,
1612 ccb->knob.xport_specific.fc.wwnn);
1613 printf("%s: %s current WWPN %#jx\n", __func__,
1614 bus_softc->port_name,
1615 ccb->knob.xport_specific.fc.wwpn);
1616
1617#ifdef RANDOM_WWNN
1618 arc4rand(&random_bits, sizeof(random_bits), 0);
1619#endif
1620
1621 /*
1622 * XXX KDM this is a bit of a kludge for now. We
1623 * take the current WWNN/WWPN from the card, and
1624 * replace the company identifier and the NL-Port
1625 * indicator and the port number (for the WWPN).
1626 * This should be replaced later with ddb_GetWWNN,
1627 * or possibly a more centralized scheme. (It
1628 * would be nice to have the WWNN/WWPN for each
1629 * port stored in the ctl_port structure.)
1630 */
1631#ifdef RANDOM_WWNN
1632 ccb->knob.xport_specific.fc.wwnn =
1633 (random_bits &
1634 0x0000000fffffff00ULL) |
1635 /* Company ID */ 0x5000ED5000000000ULL |
1636 /* NL-Port */ 0x0300;
1637 ccb->knob.xport_specific.fc.wwpn =
1638 (random_bits &
1639 0x0000000fffffff00ULL) |
1640 /* Company ID */ 0x5000ED5000000000ULL |
1641 /* NL-Port */ 0x3000 |
1642 /* Port Num */ (bus_softc->port.targ_port & 0xff);
1643
1644 /*
1645 * This is a bit of an API break/reversal, but if
1646 * we're doing the random WWNN that's a little
1647 * different anyway. So record what we're actually
1648 * using with the frontend code so it's reported
1649 * accurately.
1650 */
1651 ctl_port_set_wwns(&bus_softc->port,
1652 true, ccb->knob.xport_specific.fc.wwnn,
1653 true, ccb->knob.xport_specific.fc.wwpn);
1654 set_wwnn = 1;
1655#else /* RANDOM_WWNN */
1656 /*
1657 * If the user has specified a WWNN/WWPN, send them
1658 * down to the SIM. Otherwise, record what the SIM
1659 * has reported.
1660 */
1661 if ((bus_softc->port.wwnn != 0)
1662 && (bus_softc->port.wwpn != 0)) {
1663 ccb->knob.xport_specific.fc.wwnn =
1664 bus_softc->port.wwnn;
1665 ccb->knob.xport_specific.fc.wwpn =
1666 bus_softc->port.wwpn;
1667 set_wwnn = 1;
1668 } else {
1669 ctl_port_set_wwns(&bus_softc->port,
1670 true, ccb->knob.xport_specific.fc.wwnn,
1671 true, ccb->knob.xport_specific.fc.wwpn);
1672 }
1673#endif /* RANDOM_WWNN */
1674
1675
1676 if (set_wwnn != 0) {
1677 printf("%s: %s new WWNN %#jx\n", __func__,
1678 bus_softc->port_name,
1679 ccb->knob.xport_specific.fc.wwnn);
1680 printf("%s: %s new WWPN %#jx\n", __func__,
1681 bus_softc->port_name,
1682 ccb->knob.xport_specific.fc.wwpn);
1683 }
1684 } else {
1685 printf("%s: %s has no valid WWNN/WWPN\n", __func__,
1686 bus_softc->port_name);
1687 }
1688 }
1689 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
1690 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
1691 if (set_wwnn != 0)
1692 ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS;
1693
1694 if (online != 0)
1695 ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET;
1696 else
1697 ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE;
1698
1699 xpt_action(ccb);
1700
1701 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1702 printf("%s: SIM %s (path id %d) target %s failed with "
1703 "status %#x\n",
1704 __func__, bus_softc->port_name, bus_softc->path_id,
1705 (online != 0) ? "enable" : "disable",
1706 ccb->ccb_h.status);
1707 } else {
1708 printf("%s: SIM %s (path id %d) target %s succeeded\n",
1709 __func__, bus_softc->port_name, bus_softc->path_id,
1710 (online != 0) ? "enable" : "disable");
1711 }
1712
1713 xpt_free_path(path);
1714
1715 free(ccb, M_TEMP);
1716
1717 return;
1718}
1719
1720static void
1721ctlfe_online(void *arg)
1722{
1723 struct ctlfe_softc *bus_softc;
1724 struct cam_path *path;
1725 cam_status status;
1726 struct ctlfe_lun_softc *lun_softc;
1727 struct cam_periph *periph;
1728
1729 bus_softc = (struct ctlfe_softc *)arg;
1730
1731 /*
1732 * Create the wildcard LUN before bringing the port online.
1733 */
1734 status = xpt_create_path(&path, /*periph*/ NULL,
1735 bus_softc->path_id, CAM_TARGET_WILDCARD,
1736 CAM_LUN_WILDCARD);
1737 if (status != CAM_REQ_CMP) {
1738 printf("%s: unable to create path for wildcard periph\n",
1739 __func__);
1740 return;
1741 }
1742
1743 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE,
1744 M_NOWAIT | M_ZERO);
1745 if (lun_softc == NULL) {
1746 xpt_print(path, "%s: unable to allocate softc for "
1747 "wildcard periph\n", __func__);
1748 xpt_free_path(path);
1749 return;
1750 }
1751
1752 xpt_path_lock(path);
1753 periph = cam_periph_find(path, "ctl");
1754 if (periph != NULL) {
1755 /* We've already got a periph, no need to alloc a new one. */
1756 xpt_path_unlock(path);
1757 xpt_free_path(path);
1758 free(lun_softc, M_CTLFE);
1759 return;
1760 }
1761 lun_softc->parent_softc = bus_softc;
1762 lun_softc->flags |= CTLFE_LUN_WILDCARD;
1763
1764 status = cam_periph_alloc(ctlferegister,
1765 ctlfeoninvalidate,
1766 ctlfecleanup,
1767 ctlfestart,
1768 "ctl",
1769 CAM_PERIPH_BIO,
1770 path,
1771 ctlfeasync,
1772 0,
1773 lun_softc);
1774
1775 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1776 const struct cam_status_entry *entry;
1777
1778 entry = cam_fetch_status_entry(status);
1779 printf("%s: CAM error %s (%#x) returned from "
1780 "cam_periph_alloc()\n", __func__, (entry != NULL) ?
1781 entry->status_text : "Unknown", status);
1782 free(lun_softc, M_CTLFE);
1783 } else {
1784 mtx_lock(&bus_softc->lun_softc_mtx);
1785 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, lun_softc, links);
1786 mtx_unlock(&bus_softc->lun_softc_mtx);
1787 ctlfe_onoffline(arg, /*online*/ 1);
1788 }
1789
1790 xpt_path_unlock(path);
1791 xpt_free_path(path);
1792}
1793
1794static void
1795ctlfe_offline(void *arg)
1796{
1797 struct ctlfe_softc *bus_softc;
1798 struct cam_path *path;
1799 cam_status status;
1800 struct cam_periph *periph;
1801
1802 bus_softc = (struct ctlfe_softc *)arg;
1803
1804 /*
1805 * Disable the wildcard LUN for this port now that we have taken
1806 * the port offline.
1807 */
1808 status = xpt_create_path(&path, /*periph*/ NULL,
1809 bus_softc->path_id, CAM_TARGET_WILDCARD,
1810 CAM_LUN_WILDCARD);
1811 if (status != CAM_REQ_CMP) {
1812 printf("%s: unable to create path for wildcard periph\n",
1813 __func__);
1814 return;
1815 }
1816
1817 xpt_path_lock(path);
1818
1819 ctlfe_onoffline(arg, /*online*/ 0);
1820
1821 if ((periph = cam_periph_find(path, "ctl")) != NULL)
1822 cam_periph_invalidate(periph);
1823
1824 xpt_path_unlock(path);
1825 xpt_free_path(path);
1826}
1827
1828/*
1829 * This will get called to enable a LUN on every bus that is attached to
1830 * CTL. So we only need to create a path/periph for this particular bus.
1831 */
1832static int
1833ctlfe_lun_enable(void *arg, struct ctl_id targ_id, int lun_id)
1834{
1835 struct ctlfe_softc *bus_softc;
1836 struct ctlfe_lun_softc *softc;
1837 struct cam_path *path;
1838 struct cam_periph *periph;
1839 cam_status status;
1840
1841 bus_softc = (struct ctlfe_softc *)arg;
1842
1843 status = xpt_create_path(&path, /*periph*/ NULL,
1844 bus_softc->path_id,
1845 targ_id.id, lun_id);
1846 /* XXX KDM need some way to return status to CTL here? */
1847 if (status != CAM_REQ_CMP) {
1848 printf("%s: could not create path, status %#x\n", __func__,
1849 status);
1850 return (1);
1851 }
1852
1853 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO);
1854 xpt_path_lock(path);
1855 periph = cam_periph_find(path, "ctl");
1856 if (periph != NULL) {
1857 /* We've already got a periph, no need to alloc a new one. */
1858 xpt_path_unlock(path);
1859 xpt_free_path(path);
1860 free(softc, M_CTLFE);
1861 return (0);
1862 }
1863 softc->parent_softc = bus_softc;
1864
1865 status = cam_periph_alloc(ctlferegister,
1866 ctlfeoninvalidate,
1867 ctlfecleanup,
1868 ctlfestart,
1869 "ctl",
1870 CAM_PERIPH_BIO,
1871 path,
1872 ctlfeasync,
1873 0,
1874 softc);
1875
1876 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1877 const struct cam_status_entry *entry;
1878
1879 entry = cam_fetch_status_entry(status);
1880 printf("%s: CAM error %s (%#x) returned from "
1881 "cam_periph_alloc()\n", __func__, (entry != NULL) ?
1882 entry->status_text : "Unknown", status);
1883 free(softc, M_CTLFE);
1884 } else {
1885 mtx_lock(&bus_softc->lun_softc_mtx);
1886 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links);
1887 mtx_unlock(&bus_softc->lun_softc_mtx);
1888 }
1889
1890 xpt_path_unlock(path);
1891 xpt_free_path(path);
1892 return (0);
1893}
1894
1895/*
1896 * This will get called when the user removes a LUN to disable that LUN
1897 * on every bus that is attached to CTL.
1898 */
1899static int
1900ctlfe_lun_disable(void *arg, struct ctl_id targ_id, int lun_id)
1901{
1902 struct ctlfe_softc *softc;
1903 struct ctlfe_lun_softc *lun_softc;
1904
1905 softc = (struct ctlfe_softc *)arg;
1906
1907 mtx_lock(&softc->lun_softc_mtx);
1908 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) {
1909 struct cam_path *path;
1910
1911 path = lun_softc->periph->path;
1912
1913 if ((xpt_path_target_id(path) == targ_id.id)
1914 && (xpt_path_lun_id(path) == lun_id)) {
1915 break;
1916 }
1917 }
1918 if (lun_softc == NULL) {
1919 mtx_unlock(&softc->lun_softc_mtx);
1920 printf("%s: can't find target %d lun %d\n", __func__,
1921 targ_id.id, lun_id);
1922 return (1);
1923 }
1924 cam_periph_acquire(lun_softc->periph);
1925 mtx_unlock(&softc->lun_softc_mtx);
1926
1927 cam_periph_lock(lun_softc->periph);
1928 cam_periph_invalidate(lun_softc->periph);
1929 cam_periph_unlock(lun_softc->periph);
1930 cam_periph_release(lun_softc->periph);
1931 return (0);
1932}
1933
1934static void
1935ctlfe_dump_sim(struct cam_sim *sim)
1936{
1937
1938 printf("%s%d: max tagged openings: %d, max dev openings: %d\n",
1939 sim->sim_name, sim->unit_number,
1940 sim->max_tagged_dev_openings, sim->max_dev_openings);
1941}
1942
1943/*
1944 * Assumes that the SIM lock is held.
1945 */
1946static void
1947ctlfe_dump_queue(struct ctlfe_lun_softc *softc)
1948{
1949 struct ccb_hdr *hdr;
1950 struct cam_periph *periph;
1951 int num_items;
1952
1953 periph = softc->periph;
1954 num_items = 0;
1955
1956 TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) {
1957 union ctl_io *io = hdr->io_ptr;
1958
1959 num_items++;
1960
1961 /*
1962 * Only regular SCSI I/O is put on the work
1963 * queue, so we can print sense here. There may be no
1964 * sense if it's no the queue for a DMA, but this serves to
1965 * print out the CCB as well.
1966 *
1967 * XXX KDM switch this over to scsi_sense_print() when
1968 * CTL is merged in with CAM.
1969 */
1970 ctl_io_error_print(io, NULL);
1971
1972 /*
1973 * Print DMA status if we are DMA_QUEUED.
1974 */
1975 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) {
1976 xpt_print(periph->path,
1977 "Total %u, Current %u, Resid %u\n",
1978 io->scsiio.kern_total_len,
1979 io->scsiio.kern_data_len,
1980 io->scsiio.kern_data_resid);
1981 }
1982 }
1983
1984 xpt_print(periph->path, "%d requests total waiting for CCBs\n",
1985 num_items);
1986 xpt_print(periph->path, "%ju CCBs outstanding (%ju allocated, %ju "
1987 "freed)\n", (uintmax_t)(softc->ccbs_alloced -
1988 softc->ccbs_freed), (uintmax_t)softc->ccbs_alloced,
1989 (uintmax_t)softc->ccbs_freed);
1990 xpt_print(periph->path, "%ju CTIOs outstanding (%ju sent, %ju "
1991 "returned\n", (uintmax_t)(softc->ctios_sent -
1992 softc->ctios_returned), softc->ctios_sent,
1993 softc->ctios_returned);
1994}
1995
1996/*
1997 * Datamove/done routine called by CTL. Put ourselves on the queue to
1998 * receive a CCB from CAM so we can queue the continue I/O request down
1999 * to the adapter.
2000 */
2001static void
2002ctlfe_datamove(union ctl_io *io)
2003{
2004 union ccb *ccb;
2005 struct cam_periph *periph;
2006 struct ctlfe_lun_softc *softc;
2007
2008 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI,
2009 ("Unexpected io_type (%d) in ctlfe_datamove", io->io_hdr.io_type));
2010
2011 ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
2012 periph = xpt_path_periph(ccb->ccb_h.path);
2013 cam_periph_lock(periph);
2014 softc = (struct ctlfe_lun_softc *)periph->softc;
2015 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED;
2016 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)
2017 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED;
2018 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h,
2019 periph_links.tqe);
2020 xpt_schedule(periph, /*priority*/ 1);
2021 cam_periph_unlock(periph);
2022}
2023
2024static void
2025ctlfe_done(union ctl_io *io)
2026{
2027 union ccb *ccb;
2028 struct cam_periph *periph;
2029 struct ctlfe_lun_softc *softc;
2030
2031 ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
2032 periph = xpt_path_periph(ccb->ccb_h.path);
2033 cam_periph_lock(periph);
2034 softc = (struct ctlfe_lun_softc *)periph->softc;
2035
2036 if (io->io_hdr.io_type == CTL_IO_TASK) {
2037 /*
2038 * Task management commands don't require any further
2039 * communication back to the adapter. Requeue the CCB
2040 * to the adapter, and free the CTL I/O.
2041 */
2042 xpt_print(ccb->ccb_h.path, "%s: returning task I/O "
2043 "tag %#x seq %#x\n", __func__,
2044 ccb->cin1.tag_id, ccb->cin1.seq_id);
2045 /*
2046 * Send the notify acknowledge down to the SIM, to let it
2047 * know we processed the task management command.
2048 */
2049 ccb->ccb_h.status = CAM_REQ_INPROG;
2050 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
2051 xpt_action(ccb);
|