2 * Copyright (c) 2008, 2009 Silicon Graphics International Corp.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/scsi_ctl.c#4 $
33 * Peripheral driver interface between CAM and CTL (CAM Target Layer).
35 * Author: Ken Merry <ken@FreeBSD.org>
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
41 #include <sys/param.h>
42 #include <sys/queue.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
46 #include <sys/mutex.h>
47 #include <sys/condvar.h>
48 #include <sys/malloc.h>
50 #include <sys/endian.h>
52 #include <sys/sysctl.h>
53 #include <sys/types.h>
54 #include <sys/systm.h>
55 #include <machine/bus.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>
66 #include <cam/scsi/scsi_all.h>
67 #include <cam/scsi/scsi_message.h>
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>
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;
86 STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list;
87 struct mtx ctlfe_list_mtx;
88 static char ctlfe_mtx_desc[] = "ctlfelist";
89 #ifdef CTLFE_INIT_ENABLE
90 static int ctlfe_max_targets = 1;
91 static int ctlfe_num_targets = 0;
95 CTLFE_LUN_NONE = 0x00,
96 CTLFE_LUN_WILDCARD = 0x01
99 struct ctlfe_lun_softc {
100 struct ctlfe_softc *parent_softc;
101 struct cam_periph *periph;
102 ctlfe_lun_flags flags;
103 uint64_t ccbs_alloced;
106 uint64_t ctios_returned;
108 uint64_t atios_returned;
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;
117 CTLFE_CMD_NONE = 0x00,
118 CTLFE_CMD_PIECEWISE = 0x01
122 * The size limit of this structure is CTL_PORT_PRIV_SIZE, from ctl_io.h.
123 * Currently that is 600 bytes.
125 struct ctlfe_lun_cmd_info {
126 int cur_transfer_index;
127 size_t cur_transfer_off;
128 ctlfe_cmd_flags flags;
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.
134 #define CTLFE_MAX_SEGS 32
135 bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS];
137 CTASSERT(sizeof(struct ctlfe_lun_cmd_info) <= CTL_PORT_PRIV_SIZE);
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.
145 #define CTLFE_REQ_CTL_IO 4096
147 * Number of Accept Target I/O CCBs to allocate and queue down to the
149 * XXX KDM should this be controlled by CTL?
151 #define CTLFE_ATIO_PER_LUN 1024
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?
157 #define CTLFE_IN_PER_LUN 1024
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.
165 #define CTLFE_DMA_TIMEOUT 60
168 * Turn this on to enable extra debugging prints.
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.
183 MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface");
185 #define io_ptr ppriv_ptr0
187 /* This is only used in the CTIO */
188 #define ccb_atio ppriv_ptr1
190 int ctlfeinitialize(void);
191 void ctlfeshutdown(void);
192 static periph_init_t ctlfeperiphinit;
193 static void ctlfeasync(void *callback_arg, uint32_t code,
194 struct cam_path *path, void *arg);
195 static periph_ctor_t ctlferegister;
196 static periph_oninv_t ctlfeoninvalidate;
197 static periph_dtor_t ctlfecleanup;
198 static periph_start_t ctlfestart;
199 static void ctlfedone(struct cam_periph *periph,
200 union ccb *done_ccb);
202 static void ctlfe_onoffline(void *arg, int online);
203 static void ctlfe_online(void *arg);
204 static void ctlfe_offline(void *arg);
205 static int ctlfe_lun_enable(void *arg, struct ctl_id targ_id,
207 static int ctlfe_lun_disable(void *arg, struct ctl_id targ_id,
209 static void ctlfe_dump_sim(struct cam_sim *sim);
210 static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc);
211 static void ctlfe_datamove(union ctl_io *io);
212 static void ctlfe_done(union ctl_io *io);
213 static void ctlfe_dump(void);
215 static struct periph_driver ctlfe_driver =
217 ctlfeperiphinit, "ctl",
218 TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0,
222 static struct ctl_frontend ctlfe_frontend =
225 .init = ctlfeinitialize,
226 .fe_dump = ctlfe_dump,
227 .shutdown = ctlfeshutdown,
229 CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend);
238 ctlfeinitialize(void)
241 STAILQ_INIT(&ctlfe_softc_list);
242 mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF);
243 periphdriver_register(&ctlfe_driver);
248 ctlfeperiphinit(void)
252 status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED |
253 AC_CONTRACT, ctlfeasync, NULL, NULL);
254 if (status != CAM_REQ_CMP) {
255 printf("ctl: Failed to attach async callback due to CAM "
256 "status 0x%x!\n", status);
261 ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
263 struct ctlfe_softc *softc;
266 printf("%s: entered\n", __func__);
269 mtx_lock(&ctlfe_list_mtx);
270 STAILQ_FOREACH(softc, &ctlfe_softc_list, links) {
271 if (softc->path_id == xpt_path_path_id(path))
274 mtx_unlock(&ctlfe_list_mtx);
277 * When a new path gets registered, and it is capable of target
278 * mode, go ahead and attach. Later on, we may need to be more
279 * selective, but for now this will be sufficient.
282 case AC_PATH_REGISTERED: {
283 struct ctl_port *port;
284 struct ccb_pathinq *cpi;
287 cpi = (struct ccb_pathinq *)arg;
289 /* Don't attach if it doesn't support target mode */
290 if ((cpi->target_sprt & PIT_PROCESSOR) == 0) {
292 printf("%s: SIM %s%d doesn't support target mode\n",
293 __func__, cpi->dev_name, cpi->unit_number);
300 printf("%s: CTL port for CAM path %u already exists\n",
301 __func__, xpt_path_path_id(path));
306 #ifdef CTLFE_INIT_ENABLE
307 if (ctlfe_num_targets >= ctlfe_max_targets) {
310 ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP,
313 printf("%s: unable to malloc CCB!\n", __func__);
316 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE);
318 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
319 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
320 ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR;
324 if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
326 printf("%s: SIM %s%d (path id %d) initiator "
327 "enable failed with status %#x\n",
328 __func__, cpi->dev_name,
329 cpi->unit_number, cpi->ccb_h.path_id,
332 printf("%s: SIM %s%d (path id %d) initiator "
333 "enable succeeded\n",
334 __func__, cpi->dev_name,
335 cpi->unit_number, cpi->ccb_h.path_id);
345 printf("%s: ctlfe_num_targets = %d\n", __func__,
347 #endif /* CTLFE_INIT_ENABLE */
350 * We're in an interrupt context here, so we have to
351 * use M_NOWAIT. Of course this means trouble if we
352 * can't allocate memory.
354 softc = malloc(sizeof(*softc), M_CTLFE, M_NOWAIT | M_ZERO);
356 printf("%s: unable to malloc %zd bytes for softc\n",
357 __func__, sizeof(*softc));
361 softc->path_id = cpi->ccb_h.path_id;
362 softc->sim = xpt_path_sim(path);
364 softc->maxio = cpi->maxio;
366 softc->maxio = DFLTPHYS;
367 mtx_init(&softc->lun_softc_mtx, "LUN softc mtx", NULL, MTX_DEF);
368 STAILQ_INIT(&softc->lun_softc_list);
371 port->frontend = &ctlfe_frontend;
374 * XXX KDM should we be more accurate here ?
376 if (cpi->transport == XPORT_FC)
377 port->port_type = CTL_PORT_FC;
378 else if (cpi->transport == XPORT_SAS)
379 port->port_type = CTL_PORT_SAS;
381 port->port_type = CTL_PORT_SCSI;
383 /* XXX KDM what should the real number be here? */
384 port->num_requested_ctl_io = 4096;
385 snprintf(softc->port_name, sizeof(softc->port_name),
386 "%s%d", cpi->dev_name, cpi->unit_number);
388 * XXX KDM it would be nice to allocate storage in the
389 * frontend structure itself.
391 port->port_name = softc->port_name;
392 port->physical_port = cpi->bus_id;
393 port->virtual_port = 0;
394 port->port_online = ctlfe_online;
395 port->port_offline = ctlfe_offline;
396 port->onoff_arg = softc;
397 port->lun_enable = ctlfe_lun_enable;
398 port->lun_disable = ctlfe_lun_disable;
399 port->targ_lun_arg = softc;
400 port->fe_datamove = ctlfe_datamove;
401 port->fe_done = ctlfe_done;
403 * XXX KDM the path inquiry doesn't give us the maximum
404 * number of targets supported.
406 port->max_targets = cpi->max_target;
407 port->max_target_id = cpi->max_target;
410 * XXX KDM need to figure out whether we're the master or
414 printf("%s: calling ctl_port_register() for %s%d\n",
415 __func__, cpi->dev_name, cpi->unit_number);
417 retval = ctl_port_register(port);
419 printf("%s: ctl_port_register() failed with "
420 "error %d!\n", __func__, retval);
421 mtx_destroy(&softc->lun_softc_mtx);
422 free(softc, M_CTLFE);
425 mtx_lock(&ctlfe_list_mtx);
426 STAILQ_INSERT_TAIL(&ctlfe_softc_list, softc, links);
427 mtx_unlock(&ctlfe_list_mtx);
432 case AC_PATH_DEREGISTERED: {
436 * XXX KDM are we certain at this point that there
437 * are no outstanding commands for this frontend?
439 mtx_lock(&ctlfe_list_mtx);
440 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc,
442 mtx_unlock(&ctlfe_list_mtx);
443 ctl_port_deregister(&softc->port);
444 mtx_destroy(&softc->lun_softc_mtx);
445 free(softc, M_CTLFE);
450 struct ac_contract *ac;
452 ac = (struct ac_contract *)arg;
454 switch (ac->contract_number) {
455 case AC_CONTRACT_DEV_CHG: {
456 struct ac_device_changed *dev_chg;
459 dev_chg = (struct ac_device_changed *)ac->contract_data;
461 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n",
462 __func__, dev_chg->wwpn, dev_chg->port,
463 xpt_path_path_id(path), dev_chg->target,
464 (dev_chg->arrived == 0) ? "left" : "arrived");
467 printf("%s: CTL port for CAM path %u not "
468 "found!\n", __func__,
469 xpt_path_path_id(path));
472 if (dev_chg->arrived != 0) {
473 retval = ctl_add_initiator(&softc->port,
474 dev_chg->target, dev_chg->wwpn, NULL);
476 retval = ctl_remove_initiator(&softc->port,
481 printf("%s: could not %s port %d iid %u "
482 "WWPN %#jx!\n", __func__,
483 (dev_chg->arrived != 0) ? "add" :
484 "remove", softc->port.targ_port,
486 (uintmax_t)dev_chg->wwpn);
491 printf("%s: unsupported contract number %ju\n",
492 __func__, (uintmax_t)ac->contract_number);
503 ctlferegister(struct cam_periph *periph, void *arg)
505 struct ctlfe_softc *bus_softc;
506 struct ctlfe_lun_softc *softc;
507 union ccb en_lun_ccb;
511 softc = (struct ctlfe_lun_softc *)arg;
512 bus_softc = softc->parent_softc;
514 TAILQ_INIT(&softc->work_queue);
515 softc->periph = periph;
516 periph->softc = softc;
518 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
519 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
520 en_lun_ccb.cel.grp6_len = 0;
521 en_lun_ccb.cel.grp7_len = 0;
522 en_lun_ccb.cel.enable = 1;
523 xpt_action(&en_lun_ccb);
524 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
525 if (status != CAM_REQ_CMP) {
526 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n",
527 __func__, en_lun_ccb.ccb_h.status);
531 status = CAM_REQ_CMP;
533 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) {
535 union ctl_io *new_io;
537 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
539 if (new_ccb == NULL) {
540 status = CAM_RESRC_UNAVAIL;
543 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref);
544 if (new_io == NULL) {
545 free(new_ccb, M_CTLFE);
546 status = CAM_RESRC_UNAVAIL;
549 new_ccb->ccb_h.io_ptr = new_io;
551 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
552 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO;
553 new_ccb->ccb_h.cbfcnp = ctlfedone;
554 new_ccb->ccb_h.flags |= CAM_UNLOCKED;
557 status = new_ccb->ccb_h.status;
558 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
560 free(new_ccb, M_CTLFE);
565 status = cam_periph_acquire(periph);
566 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
567 xpt_print(periph->path, "%s: could not acquire reference "
568 "count, status = %#x\n", __func__, status);
573 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, "
574 "status 0x%x\n", __func__, status);
575 return (CAM_REQ_CMP_ERR);
578 for (i = 0; i < CTLFE_IN_PER_LUN; i++) {
580 union ctl_io *new_io;
582 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
584 if (new_ccb == NULL) {
585 status = CAM_RESRC_UNAVAIL;
588 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref);
589 if (new_io == NULL) {
590 free(new_ccb, M_CTLFE);
591 status = CAM_RESRC_UNAVAIL;
594 new_ccb->ccb_h.io_ptr = new_io;
596 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
597 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
598 new_ccb->ccb_h.cbfcnp = ctlfedone;
599 new_ccb->ccb_h.flags |= CAM_UNLOCKED;
602 status = new_ccb->ccb_h.status;
603 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
605 * Note that we don't free the CCB here. If the
606 * status is not CAM_REQ_INPROG, then we're
607 * probably talking to a SIM that says it is
608 * target-capable but doesn't support the
609 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the
610 * older API. In that case, it'll call xpt_done()
611 * on the CCB, and we need to free it in our done
612 * routine as a result.
618 || (status != CAM_REQ_INPROG)) {
619 xpt_print(periph->path, "%s: could not allocate immediate "
620 "notify CCBs, status 0x%x\n", __func__, status);
621 return (CAM_REQ_CMP_ERR);
623 mtx_lock(&bus_softc->lun_softc_mtx);
624 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links);
625 mtx_unlock(&bus_softc->lun_softc_mtx);
626 return (CAM_REQ_CMP);
630 ctlfeoninvalidate(struct cam_periph *periph)
632 union ccb en_lun_ccb;
634 struct ctlfe_softc *bus_softc;
635 struct ctlfe_lun_softc *softc;
637 softc = (struct ctlfe_lun_softc *)periph->softc;
639 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
640 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
641 en_lun_ccb.cel.grp6_len = 0;
642 en_lun_ccb.cel.grp7_len = 0;
643 en_lun_ccb.cel.enable = 0;
644 xpt_action(&en_lun_ccb);
645 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
646 if (status != CAM_REQ_CMP) {
647 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n",
648 __func__, en_lun_ccb.ccb_h.status);
650 * XXX KDM what do we do now?
653 xpt_print(periph->path, "LUN removed, %ju ATIOs outstanding, %ju "
654 "INOTs outstanding, %d refs\n", softc->atios_sent -
655 softc->atios_returned, softc->inots_sent -
656 softc->inots_returned, periph->refcount);
658 bus_softc = softc->parent_softc;
659 mtx_lock(&bus_softc->lun_softc_mtx);
660 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links);
661 mtx_unlock(&bus_softc->lun_softc_mtx);
665 ctlfecleanup(struct cam_periph *periph)
667 struct ctlfe_lun_softc *softc;
669 xpt_print(periph->path, "%s: Called\n", __func__);
671 softc = (struct ctlfe_lun_softc *)periph->softc;
674 * XXX KDM is there anything else that needs to be done here?
677 free(softc, M_CTLFE);
681 ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io,
682 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len,
683 u_int16_t *sglist_cnt)
685 struct ctlfe_softc *bus_softc;
686 struct ctlfe_lun_cmd_info *cmd_info;
687 struct ctl_sg_entry *ctl_sglist;
688 bus_dma_segment_t *cam_sglist;
692 cmd_info = (struct ctlfe_lun_cmd_info *)io->io_hdr.port_priv;
693 bus_softc = softc->parent_softc;
696 * Set the direction, relative to the initiator.
698 *flags &= ~CAM_DIR_MASK;
699 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN)
700 *flags |= CAM_DIR_IN;
702 *flags |= CAM_DIR_OUT;
704 *flags &= ~CAM_DATA_MASK;
705 idx = cmd_info->cur_transfer_index;
706 off = cmd_info->cur_transfer_off;
707 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE;
708 if (io->scsiio.kern_sg_entries == 0) {
710 *data_ptr = io->scsiio.kern_data_ptr + off;
711 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) {
712 *dxfer_len = io->scsiio.kern_data_len - off;
714 *dxfer_len = bus_softc->maxio;
715 cmd_info->cur_transfer_index = -1;
716 cmd_info->cur_transfer_off = bus_softc->maxio;
717 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
721 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
722 *flags |= CAM_DATA_PADDR;
724 *flags |= CAM_DATA_VADDR;
726 /* S/G list with physical or virtual pointers. */
727 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr;
728 cam_sglist = cmd_info->cam_sglist;
730 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) {
731 cam_sglist[i].ds_addr = (bus_addr_t)ctl_sglist[i + idx].addr + off;
732 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) {
733 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off;
734 *dxfer_len += cam_sglist[i].ds_len;
736 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len;
737 cmd_info->cur_transfer_index = idx + i;
738 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off;
739 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
740 *dxfer_len += cam_sglist[i].ds_len;
741 if (ctl_sglist[i].len != 0)
745 if (i == (CTLFE_MAX_SEGS - 1) &&
746 idx + i < (io->scsiio.kern_sg_entries - 1)) {
747 cmd_info->cur_transfer_index = idx + i + 1;
748 cmd_info->cur_transfer_off = 0;
749 cmd_info->flags |= CTLFE_CMD_PIECEWISE;
756 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
757 *flags |= CAM_DATA_SG_PADDR;
759 *flags |= CAM_DATA_SG;
760 *data_ptr = (uint8_t *)cam_sglist;
765 ctlfestart(struct cam_periph *periph, union ccb *start_ccb)
767 struct ctlfe_lun_softc *softc;
768 struct ctlfe_lun_cmd_info *cmd_info;
769 struct ccb_hdr *ccb_h;
770 struct ccb_accept_tio *atio;
771 struct ccb_scsiio *csio;
778 softc = (struct ctlfe_lun_softc *)periph->softc;
779 softc->ccbs_alloced++;
781 ccb_h = TAILQ_FIRST(&softc->work_queue);
784 xpt_release_ccb(start_ccb);
788 /* Take the ATIO off the work queue */
789 TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe);
790 atio = (struct ccb_accept_tio *)ccb_h;
791 io = (union ctl_io *)ccb_h->io_ptr;
792 csio = &start_ccb->csio;
794 flags = atio->ccb_h.flags &
795 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK);
796 cmd_info = (struct ctlfe_lun_cmd_info *)io->io_hdr.port_priv;
797 cmd_info->cur_transfer_index = 0;
798 cmd_info->cur_transfer_off = 0;
801 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) {
803 * Datamove call, we need to setup the S/G list.
806 csio->cdb_len = atio->cdb_len;
807 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len,
809 io->scsiio.ext_data_filled += dxfer_len;
810 if (io->scsiio.ext_data_filled > io->scsiio.kern_total_len) {
811 xpt_print(periph->path, "%s: tag 0x%04x "
812 "fill len %u > total %u\n",
813 __func__, io->scsiio.tag_num,
814 io->scsiio.ext_data_filled,
815 io->scsiio.kern_total_len);
819 * We're done, send status back.
821 if ((io->io_hdr.flags & CTL_FLAG_ABORT) &&
822 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) {
823 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED;
826 * If this command was aborted, we don't
827 * need to send status back to the SIM.
828 * Just free the CTIO and ctl_io, and
829 * recycle the ATIO back to the SIM.
831 xpt_print(periph->path, "%s: aborted "
832 "command 0x%04x discarded\n",
833 __func__, io->scsiio.tag_num);
835 * For a wildcard attachment, commands can
836 * come in with a specific target/lun. Reset
837 * the target and LUN fields back to the
838 * wildcard values before we send them back
839 * down to the SIM. The SIM has a wildcard
840 * LUN enabled, not whatever target/lun
841 * these happened to be.
843 if (softc->flags & CTLFE_LUN_WILDCARD) {
844 atio->ccb_h.target_id = CAM_TARGET_WILDCARD;
845 atio->ccb_h.target_lun = CAM_LUN_WILDCARD;
848 if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
849 cam_release_devq(periph->path,
854 atio->ccb_h.status &= ~CAM_DEV_QFRZN;
857 if (atio->ccb_h.func_code != XPT_ACCEPT_TARGET_IO) {
858 xpt_print(periph->path, "%s: func_code "
859 "is %#x\n", __func__,
860 atio->ccb_h.func_code);
862 start_ccb->ccb_h.func_code = XPT_ABORT;
863 start_ccb->cab.abort_ccb = (union ccb *)atio;
865 /* Tell the SIM that we've aborted this ATIO */
866 xpt_action(start_ccb);
868 xpt_release_ccb(start_ccb);
871 * Send the ATIO back down to the SIM.
873 xpt_action((union ccb *)atio);
877 * If we still have work to do, ask for
878 * another CCB. Otherwise, deactivate our
881 if (!TAILQ_EMPTY(&softc->work_queue))
882 xpt_schedule(periph, /*priority*/ 1);
887 csio->sglist_cnt = 0;
890 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) &&
891 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 &&
892 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 ||
893 io->io_hdr.status == CTL_SUCCESS)) {
894 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT;
895 flags |= CAM_SEND_STATUS;
896 scsi_status = io->scsiio.scsi_status;
897 csio->sense_len = io->scsiio.sense_len;
899 printf("%s: tag %04x status %x\n", __func__,
900 atio->tag_id, io->io_hdr.status);
902 if (csio->sense_len != 0) {
903 csio->sense_data = io->scsiio.sense_data;
904 flags |= CAM_SEND_SENSE;
905 } else if (scsi_status == SCSI_STATUS_CHECK_COND) {
906 xpt_print(periph->path, "%s: check condition "
907 "with no sense\n", __func__);
912 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__,
913 (flags & CAM_SEND_STATUS) ? "done" : "datamove",
914 atio->tag_id, flags, data_ptr, dxfer_len);
918 * Valid combinations:
919 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0,
921 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0,
923 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0,
927 if (((flags & CAM_SEND_STATUS)
928 && (((flags & CAM_DATA_SG) != 0)
930 || (csio->sglist_cnt != 0)))
931 || (((flags & CAM_SEND_STATUS) == 0)
933 || ((flags & CAM_DATA_SG)
934 && (csio->sglist_cnt == 0))
935 || (((flags & CAM_DATA_SG) == 0)
936 && (csio->sglist_cnt != 0))) {
937 printf("%s: tag %04x cdb %02x flags %#x dxfer_len "
938 "%d sg %u\n", __func__, atio->tag_id,
939 atio->cdb_io.cdb_bytes[0], flags, dxfer_len,
941 printf("%s: tag %04x io status %#x\n", __func__,
942 atio->tag_id, io->io_hdr.status);
949 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0,
953 /*data_ptr*/ data_ptr,
954 /*dxfer_len*/ dxfer_len,
955 /*timeout*/ 5 * 1000);
956 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
957 start_ccb->ccb_h.ccb_atio = atio;
958 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED)
959 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
960 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED);
964 cam_periph_unlock(periph);
965 xpt_action(start_ccb);
966 cam_periph_lock(periph);
968 if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
969 cam_release_devq(periph->path,
974 atio->ccb_h.status &= ~CAM_DEV_QFRZN;
978 * If we still have work to do, ask for another CCB.
980 if (!TAILQ_EMPTY(&softc->work_queue))
981 xpt_schedule(periph, /*priority*/ 1);
985 ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb)
987 struct ctlfe_lun_softc *softc;
989 softc = (struct ctlfe_lun_softc *)periph->softc;
991 switch (ccb->ccb_h.func_code) {
992 case XPT_ACCEPT_TARGET_IO:
993 softc->atios_returned++;
995 case XPT_IMMEDIATE_NOTIFY:
996 case XPT_NOTIFY_ACKNOWLEDGE:
997 softc->inots_returned++;
1003 ctl_free_io(ccb->ccb_h.io_ptr);
1006 KASSERT(softc->atios_returned <= softc->atios_sent, ("%s: "
1007 "atios_returned %ju > atios_sent %ju", __func__,
1008 softc->atios_returned, softc->atios_sent));
1009 KASSERT(softc->inots_returned <= softc->inots_sent, ("%s: "
1010 "inots_returned %ju > inots_sent %ju", __func__,
1011 softc->inots_returned, softc->inots_sent));
1014 * If we have received all of our CCBs, we can release our
1015 * reference on the peripheral driver. It will probably go away
1018 if ((softc->atios_returned == softc->atios_sent)
1019 && (softc->inots_returned == softc->inots_sent)) {
1020 cam_periph_release_locked(periph);
1025 ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset)
1028 uint32_t num_blocks, nbc;
1029 uint8_t *cmdbyt = (atio->ccb_h.flags & CAM_CDB_POINTER)?
1030 atio->cdb_io.cdb_ptr : atio->cdb_io.cdb_bytes;
1032 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */
1034 switch (cmdbyt[0]) {
1038 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt;
1039 lba = scsi_3btoul(cdb->addr);
1041 num_blocks = cdb->length;
1042 if (num_blocks == 0)
1046 scsi_ulto3b(lba, cdb->addr);
1047 cdb->length = num_blocks;
1053 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt;
1054 lba = scsi_4btoul(cdb->addr);
1055 num_blocks = scsi_2btoul(cdb->length);
1058 scsi_ulto4b(lba, cdb->addr);
1059 scsi_ulto2b(num_blocks, cdb->length);
1065 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt;
1066 lba = scsi_4btoul(cdb->addr);
1067 num_blocks = scsi_4btoul(cdb->length);
1070 scsi_ulto4b(lba, cdb->addr);
1071 scsi_ulto4b(num_blocks, cdb->length);
1076 case WRITE_ATOMIC_16:
1078 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt;
1079 lba = scsi_8btou64(cdb->addr);
1080 num_blocks = scsi_4btoul(cdb->length);
1083 scsi_u64to8b(lba, cdb->addr);
1084 scsi_ulto4b(num_blocks, cdb->length);
1094 ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
1096 struct ctlfe_lun_softc *softc;
1097 struct ctlfe_softc *bus_softc;
1098 struct ccb_accept_tio *atio = NULL;
1099 union ctl_io *io = NULL;
1102 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0,
1103 ("CCB in ctlfedone() without CAM_UNLOCKED flag"));
1105 printf("%s: entered, func_code = %#x\n", __func__,
1106 done_ccb->ccb_h.func_code);
1109 softc = (struct ctlfe_lun_softc *)periph->softc;
1110 bus_softc = softc->parent_softc;
1111 mtx = cam_periph_mtx(periph);
1115 * If the peripheral is invalid, ATIOs and immediate notify CCBs
1116 * need to be freed. Most of the ATIOs and INOTs that come back
1117 * will be CCBs that are being returned from the SIM as a result of
1118 * our disabling the LUN.
1120 * Other CCB types are handled in their respective cases below.
1122 if (periph->flags & CAM_PERIPH_INVALID) {
1123 switch (done_ccb->ccb_h.func_code) {
1124 case XPT_ACCEPT_TARGET_IO:
1125 case XPT_IMMEDIATE_NOTIFY:
1126 case XPT_NOTIFY_ACKNOWLEDGE:
1127 ctlfe_free_ccb(periph, done_ccb);
1134 switch (done_ccb->ccb_h.func_code) {
1135 case XPT_ACCEPT_TARGET_IO: {
1137 atio = &done_ccb->atio;
1139 softc->atios_returned++;
1143 * Allocate a ctl_io, pass it to CTL, and wait for the
1147 io = done_ccb->ccb_h.io_ptr;
1150 /* Save pointers on both sides */
1151 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = done_ccb;
1152 done_ccb->ccb_h.io_ptr = io;
1155 * Only SCSI I/O comes down this path, resets, etc. come
1156 * down the immediate notify path below.
1158 io->io_hdr.io_type = CTL_IO_SCSI;
1159 io->io_hdr.nexus.initid.id = atio->init_id;
1160 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port;
1161 io->io_hdr.nexus.targ_target.id = atio->ccb_h.target_id;
1162 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun;
1163 io->scsiio.tag_num = atio->tag_id;
1164 switch (atio->tag_action) {
1165 case CAM_TAG_ACTION_NONE:
1166 io->scsiio.tag_type = CTL_TAG_UNTAGGED;
1168 case MSG_SIMPLE_TASK:
1169 io->scsiio.tag_type = CTL_TAG_SIMPLE;
1171 case MSG_HEAD_OF_QUEUE_TASK:
1172 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE;
1174 case MSG_ORDERED_TASK:
1175 io->scsiio.tag_type = CTL_TAG_ORDERED;
1178 io->scsiio.tag_type = CTL_TAG_ACA;
1181 io->scsiio.tag_type = CTL_TAG_UNTAGGED;
1182 printf("%s: unhandled tag type %#x!!\n", __func__,
1186 if (atio->cdb_len > sizeof(io->scsiio.cdb)) {
1187 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n",
1188 __func__, atio->cdb_len, sizeof(io->scsiio.cdb));
1190 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb));
1191 bcopy(atio->cdb_io.cdb_bytes, io->scsiio.cdb,
1192 io->scsiio.cdb_len);
1195 printf("%s: %ju:%d:%ju:%d: tag %04x CDB %02x\n", __func__,
1196 (uintmax_t)io->io_hdr.nexus.initid.id,
1197 io->io_hdr.nexus.targ_port,
1198 (uintmax_t)io->io_hdr.nexus.targ_target.id,
1199 io->io_hdr.nexus.targ_lun,
1200 io->scsiio.tag_num, io->scsiio.cdb[0]);
1206 case XPT_CONT_TARGET_IO: {
1208 uint32_t srr_off = 0;
1210 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio;
1211 io = (union ctl_io *)atio->ccb_h.io_ptr;
1213 softc->ctios_returned++;
1215 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n",
1216 __func__, atio->tag_id, done_ccb->ccb_h.flags);
1219 * Handle SRR case were the data pointer is pushed back hack
1221 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV
1222 && done_ccb->csio.msg_ptr != NULL
1223 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED
1224 && done_ccb->csio.msg_ptr[1] == 5
1225 && done_ccb->csio.msg_ptr[2] == 0) {
1228 (done_ccb->csio.msg_ptr[3] << 24)
1229 | (done_ccb->csio.msg_ptr[4] << 16)
1230 | (done_ccb->csio.msg_ptr[5] << 8)
1231 | (done_ccb->csio.msg_ptr[6]);
1234 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) {
1236 * If status was being sent, the back end data is now
1237 * history. Hack it up and resubmit a new command with
1238 * the CDB adjusted. If the SIM does the right thing,
1239 * all of the resid math should work.
1241 softc->ccbs_freed++;
1242 xpt_release_ccb(done_ccb);
1243 if (ctlfe_adjust_cdb(atio, srr_off) == 0) {
1244 done_ccb = (union ccb *)atio;
1248 * Fall through to doom....
1252 * If we have an srr and we're still sending data, we
1253 * should be able to adjust offsets and cycle again.
1255 io->scsiio.kern_rel_offset =
1256 io->scsiio.ext_data_filled = srr_off;
1257 io->scsiio.ext_data_len = io->scsiio.kern_total_len -
1258 io->scsiio.kern_rel_offset;
1259 softc->ccbs_freed++;
1260 io->scsiio.io_hdr.status = CTL_STATUS_NONE;
1261 xpt_release_ccb(done_ccb);
1262 TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h,
1264 xpt_schedule(periph, /*priority*/ 1);
1269 * If we were sending status back to the initiator, free up
1270 * resources. If we were doing a datamove, call the
1271 * datamove done routine.
1273 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) {
1274 softc->ccbs_freed++;
1275 xpt_release_ccb(done_ccb);
1277 * For a wildcard attachment, commands can come in
1278 * with a specific target/lun. Reset the target
1279 * and LUN fields back to the wildcard values before
1280 * we send them back down to the SIM. The SIM has
1281 * a wildcard LUN enabled, not whatever target/lun
1282 * these happened to be.
1284 if (softc->flags & CTLFE_LUN_WILDCARD) {
1285 atio->ccb_h.target_id = CAM_TARGET_WILDCARD;
1286 atio->ccb_h.target_lun = CAM_LUN_WILDCARD;
1288 if (periph->flags & CAM_PERIPH_INVALID) {
1289 ctlfe_free_ccb(periph, (union ccb *)atio);
1291 softc->atios_sent++;
1293 xpt_action((union ccb *)atio);
1297 struct ctlfe_lun_cmd_info *cmd_info;
1298 struct ccb_scsiio *csio;
1300 csio = &done_ccb->csio;
1301 cmd_info = (struct ctlfe_lun_cmd_info *)
1302 io->io_hdr.port_priv;
1304 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
1306 io->scsiio.ext_data_len += csio->dxfer_len;
1307 if (io->scsiio.ext_data_len >
1308 io->scsiio.kern_total_len) {
1309 xpt_print(periph->path, "%s: tag 0x%04x "
1310 "done len %u > total %u sent %u\n",
1311 __func__, io->scsiio.tag_num,
1312 io->scsiio.ext_data_len,
1313 io->scsiio.kern_total_len,
1314 io->scsiio.ext_data_filled);
1317 * Translate CAM status to CTL status. Success
1318 * does not change the overall, ctl_io status. In
1319 * that case we just set port_status to 0. If we
1320 * have a failure, though, set a data phase error
1321 * for the overall ctl_io.
1323 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) {
1325 io->io_hdr.port_status = 0;
1329 * XXX KDM we probably need to figure out a
1330 * standard set of errors that the SIM
1331 * drivers should return in the event of a
1332 * data transfer failure. A data phase
1333 * error will at least point the user to a
1334 * data transfer error of some sort.
1335 * Hopefully the SIM printed out some
1336 * additional information to give the user
1337 * a clue what happened.
1339 io->io_hdr.port_status = 0xbad1;
1340 ctl_set_data_phase_error(&io->scsiio);
1342 * XXX KDM figure out residual.
1347 * If we had to break this S/G list into multiple
1348 * pieces, figure out where we are in the list, and
1349 * continue sending pieces if necessary.
1351 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE)
1352 && (io->io_hdr.port_status == 0)) {
1354 uint8_t scsi_status;
1358 flags = atio->ccb_h.flags &
1359 (CAM_DIS_DISCONNECT|
1360 CAM_TAG_ACTION_VALID);
1362 ctlfedata(softc, io, &flags, &data_ptr,
1363 &dxfer_len, &csio->sglist_cnt);
1367 if (((flags & CAM_SEND_STATUS) == 0)
1368 && (dxfer_len == 0)) {
1369 printf("%s: tag %04x no status or "
1370 "len cdb = %02x\n", __func__,
1372 atio->cdb_io.cdb_bytes[0]);
1373 printf("%s: tag %04x io status %#x\n",
1374 __func__, atio->tag_id,
1382 (flags & CAM_TAG_ACTION_VALID) ?
1383 MSG_SIMPLE_Q_TAG : 0,
1387 /*data_ptr*/ data_ptr,
1388 /*dxfer_len*/ dxfer_len,
1389 /*timeout*/ 5 * 1000);
1391 csio->ccb_h.flags |= CAM_UNLOCKED;
1393 csio->ccb_h.ccb_atio = atio;
1394 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
1395 softc->ctios_sent++;
1397 xpt_action((union ccb *)csio);
1400 * Release the CTIO. The ATIO will be sent back
1401 * down to the SIM once we send status.
1403 softc->ccbs_freed++;
1404 xpt_release_ccb(done_ccb);
1407 /* Call the backend move done callback */
1408 io->scsiio.be_move_done(io);
1414 case XPT_IMMEDIATE_NOTIFY: {
1416 struct ccb_immediate_notify *inot;
1418 int frozen, send_ctl_io;
1420 inot = &done_ccb->cin1;
1422 softc->inots_returned++;
1424 frozen = (done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1426 printf("%s: got XPT_IMMEDIATE_NOTIFY status %#x tag %#x "
1427 "seq %#x\n", __func__, inot->ccb_h.status,
1428 inot->tag_id, inot->seq_id);
1430 io = done_ccb->ccb_h.io_ptr;
1435 io->io_hdr.io_type = CTL_IO_TASK;
1436 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr =done_ccb;
1437 inot->ccb_h.io_ptr = io;
1438 io->io_hdr.nexus.initid.id = inot->initiator_id;
1439 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port;
1440 io->io_hdr.nexus.targ_target.id = inot->ccb_h.target_id;
1441 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun;
1442 /* XXX KDM should this be the tag_id? */
1443 io->taskio.tag_num = inot->seq_id;
1445 status = inot->ccb_h.status & CAM_STATUS_MASK;
1447 case CAM_SCSI_BUS_RESET:
1448 io->taskio.task_action = CTL_TASK_BUS_RESET;
1451 io->taskio.task_action = CTL_TASK_TARGET_RESET;
1453 case CAM_MESSAGE_RECV:
1454 switch (inot->arg) {
1455 case MSG_ABORT_TASK_SET:
1456 io->taskio.task_action =
1457 CTL_TASK_ABORT_TASK_SET;
1459 case MSG_TARGET_RESET:
1460 io->taskio.task_action =
1461 CTL_TASK_TARGET_RESET;
1463 case MSG_ABORT_TASK:
1464 io->taskio.task_action =
1465 CTL_TASK_ABORT_TASK;
1467 case MSG_LOGICAL_UNIT_RESET:
1468 io->taskio.task_action =
1471 case MSG_CLEAR_TASK_SET:
1472 io->taskio.task_action =
1473 CTL_TASK_CLEAR_TASK_SET;
1476 io->taskio.task_action =
1483 xpt_print(periph->path,
1484 "%s: unsupported message 0x%x\n",
1485 __func__, inot->arg);
1490 case CAM_REQ_ABORTED:
1492 * This request was sent back by the driver.
1493 * XXX KDM what do we do here?
1497 case CAM_REQ_INVALID:
1498 case CAM_PROVIDE_FAIL:
1501 * We should only get here if we're talking
1502 * to a talking to a SIM that is target
1503 * capable but supports the old API. In
1504 * that case, we need to just free the CCB.
1505 * If we actually send a notify acknowledge,
1506 * it will send that back with an error as
1510 if ((status != CAM_REQ_INVALID)
1511 && (status != CAM_PROVIDE_FAIL))
1512 xpt_print(periph->path,
1513 "%s: unsupported CAM status 0x%x\n",
1516 ctlfe_free_ccb(periph, done_ccb);
1520 if (send_ctl_io != 0) {
1523 done_ccb->ccb_h.status = CAM_REQ_INPROG;
1524 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
1525 xpt_action(done_ccb);
1529 cam_release_devq(periph->path,
1531 /*opening reduction*/ 0,
1533 /*getcount_only*/ 0);
1537 case XPT_NOTIFY_ACKNOWLEDGE:
1539 * Queue this back down to the SIM as an immediate notify.
1541 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
1542 xpt_action(done_ccb);
1543 softc->inots_sent++;
1545 case XPT_SET_SIM_KNOB:
1546 case XPT_GET_SIM_KNOB:
1549 panic("%s: unexpected CCB type %#x", __func__,
1550 done_ccb->ccb_h.func_code);
1559 ctlfe_onoffline(void *arg, int online)
1561 struct ctlfe_softc *bus_softc;
1564 struct cam_path *path;
1567 bus_softc = (struct ctlfe_softc *)arg;
1571 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id,
1572 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1573 if (status != CAM_REQ_CMP) {
1574 printf("%s: unable to create path!\n", __func__);
1577 ccb = xpt_alloc_ccb();
1578 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE);
1583 * Bits 63-60: 0x5 NAA, IEEE registered name
1584 * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan
1585 * Bits 35-12: Copan SSN (Sequential Serial Number)
1586 * Bits 11-8: Type of port:
1590 * Bits 7-0: 0 == Node Name, >0 == Port Number
1595 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB;
1601 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){
1603 uint64_t random_bits;
1606 printf("%s: %s current WWNN %#jx\n", __func__,
1607 bus_softc->port_name,
1608 ccb->knob.xport_specific.fc.wwnn);
1609 printf("%s: %s current WWPN %#jx\n", __func__,
1610 bus_softc->port_name,
1611 ccb->knob.xport_specific.fc.wwpn);
1614 arc4rand(&random_bits, sizeof(random_bits), 0);
1618 * XXX KDM this is a bit of a kludge for now. We
1619 * take the current WWNN/WWPN from the card, and
1620 * replace the company identifier and the NL-Port
1621 * indicator and the port number (for the WWPN).
1622 * This should be replaced later with ddb_GetWWNN,
1623 * or possibly a more centralized scheme. (It
1624 * would be nice to have the WWNN/WWPN for each
1625 * port stored in the ctl_port structure.)
1628 ccb->knob.xport_specific.fc.wwnn =
1630 0x0000000fffffff00ULL) |
1631 /* Company ID */ 0x5000ED5000000000ULL |
1632 /* NL-Port */ 0x0300;
1633 ccb->knob.xport_specific.fc.wwpn =
1635 0x0000000fffffff00ULL) |
1636 /* Company ID */ 0x5000ED5000000000ULL |
1637 /* NL-Port */ 0x3000 |
1638 /* Port Num */ (bus_softc->port.targ_port & 0xff);
1641 * This is a bit of an API break/reversal, but if
1642 * we're doing the random WWNN that's a little
1643 * different anyway. So record what we're actually
1644 * using with the frontend code so it's reported
1647 ctl_port_set_wwns(&bus_softc->port,
1648 true, ccb->knob.xport_specific.fc.wwnn,
1649 true, ccb->knob.xport_specific.fc.wwpn);
1651 #else /* RANDOM_WWNN */
1653 * If the user has specified a WWNN/WWPN, send them
1654 * down to the SIM. Otherwise, record what the SIM
1657 if ((bus_softc->port.wwnn != 0)
1658 && (bus_softc->port.wwpn != 0)) {
1659 ccb->knob.xport_specific.fc.wwnn =
1660 bus_softc->port.wwnn;
1661 ccb->knob.xport_specific.fc.wwpn =
1662 bus_softc->port.wwpn;
1665 ctl_port_set_wwns(&bus_softc->port,
1666 true, ccb->knob.xport_specific.fc.wwnn,
1667 true, ccb->knob.xport_specific.fc.wwpn);
1669 #endif /* RANDOM_WWNN */
1672 if (set_wwnn != 0) {
1673 printf("%s: %s new WWNN %#jx\n", __func__,
1674 bus_softc->port_name,
1675 ccb->knob.xport_specific.fc.wwnn);
1676 printf("%s: %s new WWPN %#jx\n", __func__,
1677 bus_softc->port_name,
1678 ccb->knob.xport_specific.fc.wwpn);
1681 printf("%s: %s has no valid WWNN/WWPN\n", __func__,
1682 bus_softc->port_name);
1685 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
1686 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
1688 ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS;
1691 ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET;
1693 ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE;
1697 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1698 printf("%s: SIM %s (path id %d) target %s failed with "
1700 __func__, bus_softc->port_name, bus_softc->path_id,
1701 (online != 0) ? "enable" : "disable",
1704 printf("%s: SIM %s (path id %d) target %s succeeded\n",
1705 __func__, bus_softc->port_name, bus_softc->path_id,
1706 (online != 0) ? "enable" : "disable");
1709 xpt_free_path(path);
1714 ctlfe_online(void *arg)
1716 struct ctlfe_softc *bus_softc;
1717 struct cam_path *path;
1719 struct ctlfe_lun_softc *lun_softc;
1720 struct cam_periph *periph;
1722 bus_softc = (struct ctlfe_softc *)arg;
1725 * Create the wildcard LUN before bringing the port online.
1727 status = xpt_create_path(&path, /*periph*/ NULL,
1728 bus_softc->path_id, CAM_TARGET_WILDCARD,
1730 if (status != CAM_REQ_CMP) {
1731 printf("%s: unable to create path for wildcard periph\n",
1736 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO);
1738 xpt_path_lock(path);
1739 periph = cam_periph_find(path, "ctl");
1740 if (periph != NULL) {
1741 /* We've already got a periph, no need to alloc a new one. */
1742 xpt_path_unlock(path);
1743 xpt_free_path(path);
1744 free(lun_softc, M_CTLFE);
1747 lun_softc->parent_softc = bus_softc;
1748 lun_softc->flags |= CTLFE_LUN_WILDCARD;
1750 status = cam_periph_alloc(ctlferegister,
1761 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1762 const struct cam_status_entry *entry;
1764 entry = cam_fetch_status_entry(status);
1765 printf("%s: CAM error %s (%#x) returned from "
1766 "cam_periph_alloc()\n", __func__, (entry != NULL) ?
1767 entry->status_text : "Unknown", status);
1768 free(lun_softc, M_CTLFE);
1771 xpt_path_unlock(path);
1772 ctlfe_onoffline(arg, /*online*/ 1);
1773 xpt_free_path(path);
1777 ctlfe_offline(void *arg)
1779 struct ctlfe_softc *bus_softc;
1780 struct cam_path *path;
1782 struct cam_periph *periph;
1784 bus_softc = (struct ctlfe_softc *)arg;
1786 ctlfe_onoffline(arg, /*online*/ 0);
1789 * Disable the wildcard LUN for this port now that we have taken
1792 status = xpt_create_path(&path, /*periph*/ NULL,
1793 bus_softc->path_id, CAM_TARGET_WILDCARD,
1795 if (status != CAM_REQ_CMP) {
1796 printf("%s: unable to create path for wildcard periph\n",
1800 xpt_path_lock(path);
1801 if ((periph = cam_periph_find(path, "ctl")) != NULL)
1802 cam_periph_invalidate(periph);
1803 xpt_path_unlock(path);
1804 xpt_free_path(path);
1808 * This will get called to enable a LUN on every bus that is attached to
1809 * CTL. So we only need to create a path/periph for this particular bus.
1812 ctlfe_lun_enable(void *arg, struct ctl_id targ_id, int lun_id)
1814 struct ctlfe_softc *bus_softc;
1815 struct ctlfe_lun_softc *softc;
1816 struct cam_path *path;
1817 struct cam_periph *periph;
1820 bus_softc = (struct ctlfe_softc *)arg;
1822 status = xpt_create_path(&path, /*periph*/ NULL,
1824 targ_id.id, lun_id);
1825 /* XXX KDM need some way to return status to CTL here? */
1826 if (status != CAM_REQ_CMP) {
1827 printf("%s: could not create path, status %#x\n", __func__,
1832 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO);
1833 xpt_path_lock(path);
1834 periph = cam_periph_find(path, "ctl");
1835 if (periph != NULL) {
1836 /* We've already got a periph, no need to alloc a new one. */
1837 xpt_path_unlock(path);
1838 xpt_free_path(path);
1839 free(softc, M_CTLFE);
1842 softc->parent_softc = bus_softc;
1844 status = cam_periph_alloc(ctlferegister,
1855 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1856 const struct cam_status_entry *entry;
1858 entry = cam_fetch_status_entry(status);
1859 printf("%s: CAM error %s (%#x) returned from "
1860 "cam_periph_alloc()\n", __func__, (entry != NULL) ?
1861 entry->status_text : "Unknown", status);
1862 free(softc, M_CTLFE);
1865 xpt_path_unlock(path);
1866 xpt_free_path(path);
1871 * This will get called when the user removes a LUN to disable that LUN
1872 * on every bus that is attached to CTL.
1875 ctlfe_lun_disable(void *arg, struct ctl_id targ_id, int lun_id)
1877 struct ctlfe_softc *softc;
1878 struct ctlfe_lun_softc *lun_softc;
1880 softc = (struct ctlfe_softc *)arg;
1882 mtx_lock(&softc->lun_softc_mtx);
1883 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) {
1884 struct cam_path *path;
1886 path = lun_softc->periph->path;
1888 if ((xpt_path_target_id(path) == targ_id.id)
1889 && (xpt_path_lun_id(path) == lun_id)) {
1893 if (lun_softc == NULL) {
1894 mtx_unlock(&softc->lun_softc_mtx);
1895 printf("%s: can't find target %d lun %d\n", __func__,
1896 targ_id.id, lun_id);
1899 cam_periph_acquire(lun_softc->periph);
1900 mtx_unlock(&softc->lun_softc_mtx);
1902 cam_periph_lock(lun_softc->periph);
1903 cam_periph_invalidate(lun_softc->periph);
1904 cam_periph_unlock(lun_softc->periph);
1905 cam_periph_release(lun_softc->periph);
1910 ctlfe_dump_sim(struct cam_sim *sim)
1913 printf("%s%d: max tagged openings: %d, max dev openings: %d\n",
1914 sim->sim_name, sim->unit_number,
1915 sim->max_tagged_dev_openings, sim->max_dev_openings);
1919 * Assumes that the SIM lock is held.
1922 ctlfe_dump_queue(struct ctlfe_lun_softc *softc)
1924 struct ccb_hdr *hdr;
1925 struct cam_periph *periph;
1928 periph = softc->periph;
1931 TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) {
1932 union ctl_io *io = hdr->io_ptr;
1937 * Only regular SCSI I/O is put on the work
1938 * queue, so we can print sense here. There may be no
1939 * sense if it's no the queue for a DMA, but this serves to
1940 * print out the CCB as well.
1942 * XXX KDM switch this over to scsi_sense_print() when
1943 * CTL is merged in with CAM.
1945 ctl_io_error_print(io, NULL);
1948 * Print DMA status if we are DMA_QUEUED.
1950 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) {
1951 xpt_print(periph->path,
1952 "Total %u, Current %u, Resid %u\n",
1953 io->scsiio.kern_total_len,
1954 io->scsiio.kern_data_len,
1955 io->scsiio.kern_data_resid);
1959 xpt_print(periph->path, "%d requests total waiting for CCBs\n",
1961 xpt_print(periph->path, "%ju CCBs outstanding (%ju allocated, %ju "
1962 "freed)\n", (uintmax_t)(softc->ccbs_alloced -
1963 softc->ccbs_freed), (uintmax_t)softc->ccbs_alloced,
1964 (uintmax_t)softc->ccbs_freed);
1965 xpt_print(periph->path, "%ju CTIOs outstanding (%ju sent, %ju "
1966 "returned\n", (uintmax_t)(softc->ctios_sent -
1967 softc->ctios_returned), softc->ctios_sent,
1968 softc->ctios_returned);
1972 * Datamove/done routine called by CTL. Put ourselves on the queue to
1973 * receive a CCB from CAM so we can queue the continue I/O request down
1977 ctlfe_datamove(union ctl_io *io)
1980 struct cam_periph *periph;
1981 struct ctlfe_lun_softc *softc;
1983 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI,
1984 ("Unexpected io_type (%d) in ctlfe_datamove", io->io_hdr.io_type));
1986 ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1987 periph = xpt_path_periph(ccb->ccb_h.path);
1988 cam_periph_lock(periph);
1989 softc = (struct ctlfe_lun_softc *)periph->softc;
1990 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED;
1991 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)
1992 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED;
1993 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h,
1995 xpt_schedule(periph, /*priority*/ 1);
1996 cam_periph_unlock(periph);
2000 ctlfe_done(union ctl_io *io)
2003 struct cam_periph *periph;
2004 struct ctlfe_lun_softc *softc;
2006 ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
2007 periph = xpt_path_periph(ccb->ccb_h.path);
2008 cam_periph_lock(periph);
2009 softc = (struct ctlfe_lun_softc *)periph->softc;
2011 if (io->io_hdr.io_type == CTL_IO_TASK) {
2013 * Task management commands don't require any further
2014 * communication back to the adapter. Requeue the CCB
2015 * to the adapter, and free the CTL I/O.
2017 xpt_print(ccb->ccb_h.path, "%s: returning task I/O "
2018 "tag %#x seq %#x\n", __func__,
2019 ccb->cin1.tag_id, ccb->cin1.seq_id);
2021 * Send the notify acknowledge down to the SIM, to let it
2022 * know we processed the task management command.
2024 ccb->ccb_h.status = CAM_REQ_INPROG;
2025 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
2027 } else if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) {
2028 if (softc->flags & CTLFE_LUN_WILDCARD) {
2029 ccb->ccb_h.target_id = CAM_TARGET_WILDCARD;
2030 ccb->ccb_h.target_lun = CAM_LUN_WILDCARD;
2032 if (periph->flags & CAM_PERIPH_INVALID) {
2033 ctlfe_free_ccb(periph, ccb);
2035 softc->atios_sent++;
2036 cam_periph_unlock(periph);
2041 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED;
2042 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h,
2044 xpt_schedule(periph, /*priority*/ 1);
2047 cam_periph_unlock(periph);
2053 struct ctlfe_softc *bus_softc;
2054 struct ctlfe_lun_softc *lun_softc;
2056 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) {
2057 ctlfe_dump_sim(bus_softc->sim);
2058 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links)
2059 ctlfe_dump_queue(lun_softc);