2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers
4 * Copyright (c) 1994-2002, 2004 Justin T. Gibbs.
5 * Copyright (c) 2001-2002 Adaptec Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU Public License ("GPL").
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#35 $
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <dev/aic7xxx/aic79xx_osm.h>
39 #include <dev/aic7xxx/aic79xx_inline.h>
41 #include <sys/kthread.h>
48 #ifndef AHD_TMODE_ENABLE
49 #define AHD_TMODE_ENABLE 0
52 #include <dev/aic7xxx/aic_osm_lib.c>
54 #define ccb_scb_ptr spriv_ptr0
57 static void ahd_dump_targcmd(struct target_cmd *cmd);
59 static int ahd_modevent(module_t mod, int type, void *data);
60 static void ahd_action(struct cam_sim *sim, union ccb *ccb);
61 static void ahd_set_tran_settings(struct ahd_softc *ahd,
62 int our_id, char channel,
63 struct ccb_trans_settings *cts);
64 static void ahd_get_tran_settings(struct ahd_softc *ahd,
65 int our_id, char channel,
66 struct ccb_trans_settings *cts);
67 static void ahd_async(void *callback_arg, uint32_t code,
68 struct cam_path *path, void *arg);
69 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
70 int nsegments, int error);
71 static void ahd_poll(struct cam_sim *sim);
72 static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
73 struct ccb_scsiio *csio, struct scb *scb);
74 static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim,
76 static int ahd_create_path(struct ahd_softc *ahd,
77 char channel, u_int target, u_int lun,
78 struct cam_path **path);
80 static const char *ahd_sysctl_node_elements[] = {
86 #ifndef NO_SYSCTL_DESCR
87 static const char *ahd_sysctl_node_descriptions[] = {
88 "root error collection for aic79xx controllers",
89 "summary collection for aic79xx controllers",
90 "debug collection for aic79xx controllers"
94 static const char *ahd_sysctl_errors_elements[] = {
100 #ifndef NO_SYSCTL_DESCR
101 static const char *ahd_sysctl_errors_descriptions[] = {
102 "Correctable errors",
103 "Uncorrectable errors",
109 ahd_set_debugcounters(SYSCTL_HANDLER_ARGS)
111 struct ahd_softc *sc;
116 error = sysctl_handle_int(oidp, &tmpv, 0, req);
117 if (error != 0 || req->newptr == NULL)
119 if (tmpv < 0 || tmpv >= AHD_ERRORS_NUMBER)
121 sc->summerr[arg2] = tmpv;
126 ahd_clear_allcounters(SYSCTL_HANDLER_ARGS)
128 struct ahd_softc *sc;
133 error = sysctl_handle_int(oidp, &tmpv, 0, req);
134 if (error != 0 || req->newptr == NULL)
137 bzero(sc->summerr, sizeof(sc->summerr));
142 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target,
143 u_int lun, struct cam_path **path)
147 path_id = cam_sim_path(ahd->platform_data->sim);
148 return (xpt_create_path(path, /*periph*/NULL,
149 path_id, target, lun));
153 ahd_sysctl(struct ahd_softc *ahd)
157 for (i = 0; i < AHD_SYSCTL_NUMBER; i++)
158 sysctl_ctx_init(&ahd->sysctl_ctx[i]);
160 ahd->sysctl_tree[AHD_SYSCTL_ROOT] =
161 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
162 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
163 device_get_nameunit(ahd->dev_softc),
164 CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
165 ahd_sysctl_node_descriptions[AHD_SYSCTL_ROOT]);
166 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
167 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]), OID_AUTO,
168 "clear", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, ahd,
169 0, ahd_clear_allcounters, "IU", "Clear all counters");
171 for (i = AHD_SYSCTL_SUMMARY; i < AHD_SYSCTL_NUMBER; i++)
172 ahd->sysctl_tree[i] =
173 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[i],
174 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
175 OID_AUTO, ahd_sysctl_node_elements[i],
176 CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
177 ahd_sysctl_node_descriptions[i]);
179 for (i = AHD_ERRORS_CORRECTABLE; i < AHD_ERRORS_NUMBER; i++) {
180 SYSCTL_ADD_UINT(&ahd->sysctl_ctx[AHD_SYSCTL_SUMMARY],
181 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_SUMMARY]),
182 OID_AUTO, ahd_sysctl_errors_elements[i],
183 CTLFLAG_RD, &ahd->summerr[i], i,
184 ahd_sysctl_errors_descriptions[i]);
185 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_DEBUG],
186 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_DEBUG]),
187 OID_AUTO, ahd_sysctl_errors_elements[i],
188 CTLFLAG_RW | CTLTYPE_UINT | CTLFLAG_MPSAFE, ahd, i,
189 ahd_set_debugcounters, "IU",
190 ahd_sysctl_errors_descriptions[i]);
195 ahd_map_int(struct ahd_softc *ahd)
199 /* Hook up our interrupt handler */
200 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq,
201 INTR_TYPE_CAM|INTR_MPSAFE, NULL,
202 ahd_platform_intr, ahd, &ahd->platform_data->ih);
204 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n",
210 * Attach all the sub-devices we can find
213 ahd_attach(struct ahd_softc *ahd)
216 struct ccb_setasync csa;
217 struct cam_devq *devq;
219 struct cam_path *path;
228 * Create a thread to perform all recovery.
230 if (ahd_spawn_recovery_thread(ahd) != 0)
233 ahd_controller_info(ahd, ahd_info);
234 printf("%s\n", ahd_info);
238 * Create the device queue for our SIM(s).
240 devq = cam_simq_alloc(AHD_MAX_QUEUE);
245 * Construct our SIM entry
247 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd,
248 device_get_unit(ahd->dev_softc),
249 &ahd->platform_data->mtx, 1, /*XXX*/256, devq);
255 if (xpt_bus_register(sim, ahd->dev_softc, /*bus_id*/0) != CAM_SUCCESS) {
256 cam_sim_free(sim, /*free_devq*/TRUE);
261 if (xpt_create_path(&path, /*periph*/NULL,
262 cam_sim_path(sim), CAM_TARGET_WILDCARD,
263 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
264 xpt_bus_deregister(cam_sim_path(sim));
265 cam_sim_free(sim, /*free_devq*/TRUE);
270 memset(&csa, 0, sizeof(csa));
271 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
272 csa.ccb_h.func_code = XPT_SASYNC_CB;
273 csa.event_enable = AC_LOST_DEVICE;
274 csa.callback = ahd_async;
275 csa.callback_arg = sim;
276 xpt_action((union ccb *)&csa);
280 ahd->platform_data->sim = sim;
281 ahd->platform_data->path = path;
284 /* We have to wait until after any system dumps... */
285 ahd->platform_data->eh =
286 EVENTHANDLER_REGISTER(shutdown_final, ahd_shutdown,
287 ahd, SHUTDOWN_PRI_DEFAULT);
288 ahd_intr_enable(ahd, TRUE);
295 * Catch an interrupt from the adapter
298 ahd_platform_intr(void *arg)
300 struct ahd_softc *ahd;
302 ahd = (struct ahd_softc *)arg;
309 * We have an scb which has been processed by the
310 * adaptor, now we look to see how the operation
314 ahd_done(struct ahd_softc *ahd, struct scb *scb)
318 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
319 ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
322 LIST_REMOVE(scb, pending_links);
323 if ((scb->flags & SCB_TIMEDOUT) != 0)
324 LIST_REMOVE(scb, timedout_links);
326 callout_stop(&scb->io_timer);
328 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
331 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
332 op = BUS_DMASYNC_POSTREAD;
334 op = BUS_DMASYNC_POSTWRITE;
335 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
336 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
339 #ifdef AHD_TARGET_MODE
340 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
341 struct cam_path *ccb_path;
344 * If we have finally disconnected, clean up our
345 * pending device state.
346 * XXX - There may be error states that cause where
347 * we will remain connected.
349 ccb_path = ccb->ccb_h.path;
350 if (ahd->pending_device != NULL
351 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
352 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
353 ahd->pending_device = NULL;
355 xpt_print_path(ccb->ccb_h.path);
356 printf("Still disconnected\n");
361 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
362 ccb->ccb_h.status |= CAM_REQ_CMP;
363 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
364 ahd_free_scb(ahd, scb);
370 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
371 struct scb *list_scb;
373 ahd->scb_data.recovery_scbs--;
375 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
376 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
377 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
379 if (ahd->scb_data.recovery_scbs == 0) {
381 * All recovery actions have completed successfully,
382 * so reinstate the timeouts for all other pending
385 LIST_FOREACH(list_scb,
386 &ahd->pending_scbs, pending_links) {
387 aic_scb_timer_reset(list_scb,
388 aic_get_timeout(scb));
391 ahd_print_path(ahd, scb);
392 printf("no longer in timeout, status = %x\n",
397 /* Don't clobber any existing error state */
398 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
399 ccb->ccb_h.status |= CAM_REQ_CMP;
400 } else if ((scb->flags & SCB_SENSE) != 0) {
402 * We performed autosense retrieval.
404 * Zero any sense not transferred by the
405 * device. The SCSI spec mandates that any
406 * untransfered data should be assumed to be
407 * zero. Complete the 'bounce' of sense information
408 * through buffers accessible via bus-space by
409 * copying it into the clients csio.
411 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
412 memcpy(&ccb->csio.sense_data,
413 ahd_get_sense_buf(ahd, scb),
414 /* XXX What size do we want to use??? */
415 sizeof(ccb->csio.sense_data)
416 - ccb->csio.sense_resid);
417 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
418 } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
419 struct scsi_status_iu_header *siu;
423 * Copy only the sense data into the provided buffer.
425 siu = (struct scsi_status_iu_header *)scb->sense_data;
426 sense_len = MIN(scsi_4btoul(siu->sense_length),
427 sizeof(ccb->csio.sense_data));
428 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
429 memcpy(&ccb->csio.sense_data,
430 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
433 if ((ahd_debug & AHD_SHOW_SENSE) != 0) {
434 uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data;
437 printf("Copied %d bytes of sense data offset %d:",
438 sense_len, SIU_SENSE_OFFSET(siu));
439 for (i = 0; i < sense_len; i++)
440 printf(" 0x%x", *sense_data++);
444 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
446 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
447 ahd_free_scb(ahd, scb);
452 ahd_action(struct cam_sim *sim, union ccb *ccb)
454 struct ahd_softc *ahd;
455 #ifdef AHD_TARGET_MODE
456 struct ahd_tmode_lstate *lstate;
461 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
463 ahd = (struct ahd_softc *)cam_sim_softc(sim);
465 target_id = ccb->ccb_h.target_id;
466 our_id = SIM_SCSI_ID(ahd, sim);
468 switch (ccb->ccb_h.func_code) {
469 /* Common cases first */
470 #ifdef AHD_TARGET_MODE
471 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
472 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
474 struct ahd_tmode_tstate *tstate;
477 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
480 if (status != CAM_REQ_CMP) {
481 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
482 /* Response from the black hole device */
484 lstate = ahd->black_hole;
486 ccb->ccb_h.status = status;
491 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
492 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
494 ccb->ccb_h.status = CAM_REQ_INPROG;
495 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
496 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
501 * The target_id represents the target we attempt to
502 * select. In target mode, this is the initiator of
503 * the original command.
506 target_id = ccb->csio.init_id;
510 case XPT_SCSI_IO: /* Execute the requested I/O operation */
511 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
514 struct hardware_scb *hscb;
515 struct ahd_initiator_tinfo *tinfo;
516 struct ahd_tmode_tstate *tstate;
519 if ((ahd->flags & AHD_INITIATORROLE) == 0
520 && (ccb->ccb_h.func_code == XPT_SCSI_IO
521 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
522 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
530 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
532 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
533 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
534 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
535 col_idx = AHD_NEVER_COL_IDX;
537 col_idx = AHD_BUILD_COL_IDX(target_id,
538 ccb->ccb_h.target_lun);
540 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
541 xpt_freeze_simq(sim, /*count*/1);
542 ahd->flags |= AHD_RESOURCE_SHORTAGE;
543 ccb->ccb_h.status = CAM_REQUEUE_REQ;
550 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
551 ("start scb(%p)\n", scb));
554 * So we can find the SCB when an abort is requested
556 ccb->ccb_h.ccb_scb_ptr = scb;
559 * Put all the arguments for the xfer in the scb
562 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
563 hscb->lun = ccb->ccb_h.target_lun;
564 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
566 scb->flags |= SCB_DEVICE_RESET;
567 hscb->control |= MK_MESSAGE;
568 hscb->task_management = SIU_TASKMGMT_LUN_RESET;
569 ahd_execute_scb(scb, NULL, 0, 0);
571 #ifdef AHD_TARGET_MODE
572 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
573 struct target_data *tdata;
575 tdata = &hscb->shared_data.tdata;
576 if (ahd->pending_device == lstate)
577 scb->flags |= SCB_TARGET_IMMEDIATE;
578 hscb->control |= TARGET_SCB;
579 tdata->target_phases = 0;
580 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
581 tdata->target_phases |= SPHASE_PENDING;
583 ccb->csio.scsi_status;
585 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
586 tdata->target_phases |= NO_DISCONNECT;
588 tdata->initiator_tag =
589 ahd_htole16(ccb->csio.tag_id);
592 hscb->task_management = 0;
593 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
594 hscb->control |= ccb->csio.tag_action;
596 ahd_setup_data(ahd, sim, &ccb->csio, scb);
600 #ifdef AHD_TARGET_MODE
601 case XPT_NOTIFY_ACKNOWLEDGE:
602 case XPT_IMMEDIATE_NOTIFY:
604 struct ahd_tmode_tstate *tstate;
605 struct ahd_tmode_lstate *lstate;
608 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
611 if (status != CAM_REQ_CMP) {
612 ccb->ccb_h.status = status;
616 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
618 ccb->ccb_h.status = CAM_REQ_INPROG;
619 ahd_send_lstate_events(ahd, lstate);
622 case XPT_EN_LUN: /* Enable LUN as a target */
623 ahd_handle_en_lun(ahd, sim, ccb);
627 case XPT_ABORT: /* Abort the specified CCB */
629 ahd_abort_ccb(ahd, sim, ccb);
632 case XPT_SET_TRAN_SETTINGS:
634 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
635 SIM_CHANNEL(ahd, sim), &ccb->cts);
639 case XPT_GET_TRAN_SETTINGS:
640 /* Get default/user set transfer settings for the target */
642 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
643 SIM_CHANNEL(ahd, sim), &ccb->cts);
647 case XPT_CALC_GEOMETRY:
649 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
653 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
657 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
658 /*initiate reset*/TRUE);
660 xpt_print_path(SIM_PATH(ahd, sim));
661 printf("SCSI bus reset delivered. "
662 "%d SCBs aborted.\n", found);
664 ccb->ccb_h.status = CAM_REQ_CMP;
668 case XPT_TERM_IO: /* Terminate the I/O process */
670 ccb->ccb_h.status = CAM_REQ_INVALID;
673 case XPT_PATH_INQ: /* Path routing inquiry */
675 struct ccb_pathinq *cpi = &ccb->cpi;
677 cpi->version_num = 1; /* XXX??? */
678 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
679 if ((ahd->features & AHD_WIDE) != 0)
680 cpi->hba_inquiry |= PI_WIDE_16;
681 if ((ahd->features & AHD_TARGETMODE) != 0) {
682 cpi->target_sprt = PIT_PROCESSOR
686 cpi->target_sprt = 0;
689 cpi->hba_eng_cnt = 0;
690 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
691 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
692 cpi->initiator_id = ahd->our_id;
693 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
694 cpi->hba_misc |= PIM_NOBUSRESET;
696 cpi->bus_id = cam_sim_bus(sim);
697 cpi->base_transfer_speed = 3300;
698 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
699 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
700 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
701 cpi->unit_number = cam_sim_unit(sim);
702 cpi->protocol = PROTO_SCSI;
703 cpi->protocol_version = SCSI_REV_2;
704 cpi->transport = XPORT_SPI;
705 cpi->transport_version = 4;
706 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST
709 cpi->ccb_h.status = CAM_REQ_CMP;
714 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
721 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
722 struct ccb_trans_settings *cts)
724 struct ahd_devinfo devinfo;
725 struct ccb_trans_settings_scsi *scsi;
726 struct ccb_trans_settings_spi *spi;
727 struct ahd_initiator_tinfo *tinfo;
728 struct ahd_tmode_tstate *tstate;
729 uint16_t *discenable;
733 scsi = &cts->proto_specific.scsi;
734 spi = &cts->xport_specific.spi;
735 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
736 cts->ccb_h.target_id,
737 cts->ccb_h.target_lun,
738 SIM_CHANNEL(ahd, sim),
740 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
742 devinfo.target, &tstate);
744 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
745 update_type |= AHD_TRANS_GOAL;
746 discenable = &tstate->discenable;
747 tagenable = &tstate->tagenable;
748 tinfo->curr.protocol_version = cts->protocol_version;
749 tinfo->curr.transport_version = cts->transport_version;
750 tinfo->goal.protocol_version = cts->protocol_version;
751 tinfo->goal.transport_version = cts->transport_version;
752 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
753 update_type |= AHD_TRANS_USER;
754 discenable = &ahd->user_discenable;
755 tagenable = &ahd->user_tagenable;
756 tinfo->user.protocol_version = cts->protocol_version;
757 tinfo->user.transport_version = cts->transport_version;
759 cts->ccb_h.status = CAM_REQ_INVALID;
763 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
764 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
765 *discenable |= devinfo.target_mask;
767 *discenable &= ~devinfo.target_mask;
770 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
771 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
772 *tagenable |= devinfo.target_mask;
774 *tagenable &= ~devinfo.target_mask;
777 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
778 ahd_validate_width(ahd, /*tinfo limit*/NULL,
779 &spi->bus_width, ROLE_UNKNOWN);
780 ahd_set_width(ahd, &devinfo, spi->bus_width,
781 update_type, /*paused*/FALSE);
784 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
785 if (update_type == AHD_TRANS_USER)
786 spi->ppr_options = tinfo->user.ppr_options;
788 spi->ppr_options = tinfo->goal.ppr_options;
791 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
792 if (update_type == AHD_TRANS_USER)
793 spi->sync_offset = tinfo->user.offset;
795 spi->sync_offset = tinfo->goal.offset;
798 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
799 if (update_type == AHD_TRANS_USER)
800 spi->sync_period = tinfo->user.period;
802 spi->sync_period = tinfo->goal.period;
805 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
806 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
809 maxsync = AHD_SYNCRATE_MAX;
811 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
812 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
814 if ((*discenable & devinfo.target_mask) == 0)
815 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
817 ahd_find_syncrate(ahd, &spi->sync_period,
818 &spi->ppr_options, maxsync);
819 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
820 spi->sync_period, &spi->sync_offset,
821 spi->bus_width, ROLE_UNKNOWN);
823 /* We use a period of 0 to represent async */
824 if (spi->sync_offset == 0) {
825 spi->sync_period = 0;
826 spi->ppr_options = 0;
829 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
830 spi->sync_offset, spi->ppr_options,
831 update_type, /*paused*/FALSE);
833 cts->ccb_h.status = CAM_REQ_CMP;
837 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
838 struct ccb_trans_settings *cts)
840 struct ahd_devinfo devinfo;
841 struct ccb_trans_settings_scsi *scsi;
842 struct ccb_trans_settings_spi *spi;
843 struct ahd_initiator_tinfo *targ_info;
844 struct ahd_tmode_tstate *tstate;
845 struct ahd_transinfo *tinfo;
847 scsi = &cts->proto_specific.scsi;
848 spi = &cts->xport_specific.spi;
849 ahd_compile_devinfo(&devinfo, our_id,
850 cts->ccb_h.target_id,
851 cts->ccb_h.target_lun,
852 channel, ROLE_UNKNOWN);
853 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
855 devinfo.target, &tstate);
857 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
858 tinfo = &targ_info->curr;
860 tinfo = &targ_info->user;
862 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
863 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
864 if (cts->type == CTS_TYPE_USER_SETTINGS) {
865 if ((ahd->user_discenable & devinfo.target_mask) != 0)
866 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
868 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
869 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
871 if ((tstate->discenable & devinfo.target_mask) != 0)
872 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
874 if ((tstate->tagenable & devinfo.target_mask) != 0)
875 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
877 cts->protocol_version = tinfo->protocol_version;
878 cts->transport_version = tinfo->transport_version;
880 spi->sync_period = tinfo->period;
881 spi->sync_offset = tinfo->offset;
882 spi->bus_width = tinfo->width;
883 spi->ppr_options = tinfo->ppr_options;
885 cts->protocol = PROTO_SCSI;
886 cts->transport = XPORT_SPI;
887 spi->valid = CTS_SPI_VALID_SYNC_RATE
888 | CTS_SPI_VALID_SYNC_OFFSET
889 | CTS_SPI_VALID_BUS_WIDTH
890 | CTS_SPI_VALID_PPR_OPTIONS;
892 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
893 scsi->valid = CTS_SCSI_VALID_TQ;
894 spi->valid |= CTS_SPI_VALID_DISC;
899 cts->ccb_h.status = CAM_REQ_CMP;
903 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
905 struct ahd_softc *ahd;
908 sim = (struct cam_sim *)callback_arg;
909 ahd = (struct ahd_softc *)cam_sim_softc(sim);
913 struct ahd_devinfo devinfo;
915 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
916 xpt_path_target_id(path),
917 xpt_path_lun_id(path),
918 SIM_CHANNEL(ahd, sim),
922 * Revert to async/narrow transfers
923 * for the next device.
925 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
926 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
927 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
928 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
938 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
943 struct ahd_softc *ahd;
944 struct ahd_initiator_tinfo *tinfo;
945 struct ahd_tmode_tstate *tstate;
948 scb = (struct scb *)arg;
950 ahd = scb->ahd_softc;
954 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
956 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
958 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
959 ahd_free_scb(ahd, scb);
964 if (nsegments != 0) {
969 /* Copy the segments into our SG list */
970 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
971 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
977 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
978 op = BUS_DMASYNC_PREREAD;
980 op = BUS_DMASYNC_PREWRITE;
982 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
984 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
985 struct target_data *tdata;
987 tdata = &scb->hscb->shared_data.tdata;
988 tdata->target_phases |= DPHASE_PENDING;
989 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
990 tdata->data_phase = P_DATAOUT;
992 tdata->data_phase = P_DATAIN;
997 * Last time we need to check if this SCB needs to
1000 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1002 bus_dmamap_unload(ahd->buffer_dmat,
1004 ahd_free_scb(ahd, scb);
1009 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
1010 SCSIID_OUR_ID(scb->hscb->scsiid),
1011 SCSIID_TARGET(ahd, scb->hscb->scsiid),
1014 mask = SCB_GET_TARGET_MASK(ahd, scb);
1016 if ((tstate->discenable & mask) != 0
1017 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1018 scb->hscb->control |= DISCENB;
1020 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
1021 scb->flags |= SCB_PACKETIZED;
1022 if (scb->hscb->task_management != 0)
1023 scb->hscb->control &= ~MK_MESSAGE;
1026 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1027 && (tinfo->goal.width != 0
1028 || tinfo->goal.period != 0
1029 || tinfo->goal.ppr_options != 0)) {
1030 scb->flags |= SCB_NEGOTIATE;
1031 scb->hscb->control |= MK_MESSAGE;
1032 } else if ((tstate->auto_negotiate & mask) != 0) {
1033 scb->flags |= SCB_AUTO_NEGOTIATE;
1034 scb->hscb->control |= MK_MESSAGE;
1037 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
1039 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1041 aic_scb_timer_start(scb);
1043 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1044 /* Define a mapping from our tag to the SCB. */
1045 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
1047 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
1048 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
1051 ahd_queue_scb(ahd, scb);
1057 ahd_poll(struct cam_sim *sim)
1059 ahd_intr(cam_sim_softc(sim));
1063 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
1064 struct ccb_scsiio *csio, struct scb *scb)
1066 struct hardware_scb *hscb;
1067 struct ccb_hdr *ccb_h;
1071 ccb_h = &csio->ccb_h;
1074 csio->sense_resid = 0;
1075 if (ccb_h->func_code == XPT_SCSI_IO) {
1076 hscb->cdb_len = csio->cdb_len;
1077 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1078 if (hscb->cdb_len > MAX_CDB_LEN
1079 && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
1081 * Should CAM start to support CDB sizes
1082 * greater than 16 bytes, we could use
1083 * the sense buffer to store the CDB.
1085 aic_set_transaction_status(scb,
1087 ahd_free_scb(ahd, scb);
1088 xpt_done((union ccb *)csio);
1091 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
1092 hscb->shared_data.idata.cdb_from_host.cdbptr =
1093 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
1094 hscb->shared_data.idata.cdb_from_host.cdblen =
1096 hscb->cdb_len |= SCB_CDB_LEN_PTR;
1098 memcpy(hscb->shared_data.idata.cdb,
1099 csio->cdb_io.cdb_ptr,
1103 if (hscb->cdb_len > MAX_CDB_LEN) {
1104 aic_set_transaction_status(scb,
1106 ahd_free_scb(ahd, scb);
1107 xpt_done((union ccb *)csio);
1110 memcpy(hscb->shared_data.idata.cdb,
1111 csio->cdb_io.cdb_bytes, hscb->cdb_len);
1115 error = bus_dmamap_load_ccb(ahd->buffer_dmat,
1120 if (error == EINPROGRESS) {
1122 * So as to maintain ordering, freeze the controller queue
1123 * until our mapping is returned.
1125 xpt_freeze_simq(sim, /*count*/1);
1126 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
1131 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1133 union ccb *abort_ccb;
1135 abort_ccb = ccb->cab.abort_ccb;
1136 switch (abort_ccb->ccb_h.func_code) {
1137 #ifdef AHD_TARGET_MODE
1138 case XPT_ACCEPT_TARGET_IO:
1139 case XPT_IMMEDIATE_NOTIFY:
1140 case XPT_CONT_TARGET_IO:
1142 struct ahd_tmode_tstate *tstate;
1143 struct ahd_tmode_lstate *lstate;
1144 struct ccb_hdr_slist *list;
1147 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1150 if (status != CAM_REQ_CMP) {
1151 ccb->ccb_h.status = status;
1155 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1156 list = &lstate->accept_tios;
1157 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
1158 list = &lstate->immed_notifies;
1163 struct ccb_hdr *curelm;
1166 curelm = SLIST_FIRST(list);
1168 if (curelm == &abort_ccb->ccb_h) {
1170 SLIST_REMOVE_HEAD(list, sim_links.sle);
1172 while(curelm != NULL) {
1173 struct ccb_hdr *nextelm;
1176 SLIST_NEXT(curelm, sim_links.sle);
1178 if (nextelm == &abort_ccb->ccb_h) {
1191 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1192 xpt_done(abort_ccb);
1193 ccb->ccb_h.status = CAM_REQ_CMP;
1195 xpt_print_path(abort_ccb->ccb_h.path);
1196 printf("Not found\n");
1197 ccb->ccb_h.status = CAM_PATH_INVALID;
1205 /* XXX Fully implement the hard ones */
1206 ccb->ccb_h.status = CAM_UA_ABORT;
1209 ccb->ccb_h.status = CAM_REQ_INVALID;
1216 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1217 u_int lun, ac_code code, void *opt_arg)
1219 struct ccb_trans_settings cts;
1220 struct cam_path *path;
1225 error = ahd_create_path(ahd, channel, target, lun, &path);
1227 if (error != CAM_REQ_CMP)
1231 case AC_TRANSFER_NEG:
1233 struct ccb_trans_settings_scsi *scsi;
1235 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1236 scsi = &cts.proto_specific.scsi;
1237 cts.ccb_h.path = path;
1238 cts.ccb_h.target_id = target;
1239 cts.ccb_h.target_lun = lun;
1240 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1242 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1243 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1244 if (opt_arg == NULL)
1246 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1247 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1248 scsi->valid |= CTS_SCSI_VALID_TQ;
1255 panic("ahd_send_async: Unexpected async event");
1257 xpt_async(code, path, arg);
1258 xpt_free_path(path);
1262 ahd_platform_set_tags(struct ahd_softc *ahd,
1263 struct ahd_devinfo *devinfo, int enable)
1268 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1270 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1272 if (ahd->platform_data == NULL)
1278 ahd_platform_free(struct ahd_softc *ahd)
1280 struct ahd_platform_data *pdata;
1282 pdata = ahd->platform_data;
1283 if (pdata != NULL) {
1284 if (pdata->regs[0] != NULL)
1285 bus_release_resource(ahd->dev_softc,
1286 pdata->regs_res_type[0],
1287 pdata->regs_res_id[0],
1290 if (pdata->regs[1] != NULL)
1291 bus_release_resource(ahd->dev_softc,
1292 pdata->regs_res_type[1],
1293 pdata->regs_res_id[1],
1296 if (pdata->irq != NULL)
1297 bus_release_resource(ahd->dev_softc,
1298 pdata->irq_res_type,
1301 if (pdata->sim != NULL) {
1302 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1303 xpt_free_path(pdata->path);
1304 xpt_bus_deregister(cam_sim_path(pdata->sim));
1305 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1307 if (pdata->eh != NULL)
1308 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1309 free(ahd->platform_data, M_DEVBUF);
1314 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1316 /* We don't sort softcs under FreeBSD so report equal always */
1321 ahd_detach(device_t dev)
1323 struct ahd_softc *ahd;
1325 device_printf(dev, "detaching device\n");
1326 ahd = device_get_softc(dev);
1328 TAILQ_REMOVE(&ahd_tailq, ahd, links);
1329 ahd_intr_enable(ahd, FALSE);
1330 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1338 ahd_dump_targcmd(struct target_cmd *cmd)
1344 byte = &cmd->initiator_channel;
1345 /* Debugging info for received commands */
1346 last_byte = &cmd[1].initiator_channel;
1349 while (byte < last_byte) {
1352 printf("%#x", *byte++);
1365 ahd_modevent(module_t mod, int type, void *data)
1367 /* XXX Deal with busy status on unload. */
1368 /* XXX Deal with unknown events */
1372 static moduledata_t ahd_mod = {
1378 /********************************** DDB Hooks *********************************/
1380 static struct ahd_softc *ahd_ddb_softc;
1381 static int ahd_ddb_paused;
1382 static int ahd_ddb_paused_on_entry;
1383 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1385 struct ahd_softc *list_ahd;
1387 ahd_ddb_softc = NULL;
1388 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1389 if (list_ahd->unit == addr)
1390 ahd_ddb_softc = list_ahd;
1392 if (ahd_ddb_softc == NULL)
1393 db_error("No matching softc found!\n");
1396 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1398 if (ahd_ddb_softc == NULL) {
1399 db_error("Must set unit with ahd_sunit first!\n");
1402 if (ahd_ddb_paused == 0) {
1404 if (ahd_is_paused(ahd_ddb_softc)) {
1405 ahd_ddb_paused_on_entry++;
1408 ahd_pause(ahd_ddb_softc);
1412 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1414 if (ahd_ddb_softc == NULL) {
1415 db_error("Must set unit with ahd_sunit first!\n");
1418 if (ahd_ddb_paused != 0) {
1420 if (ahd_ddb_paused_on_entry)
1422 ahd_unpause(ahd_ddb_softc);
1423 } else if (ahd_ddb_paused_on_entry != 0) {
1424 /* Two unpauses to clear a paused on entry. */
1425 ahd_ddb_paused_on_entry = 0;
1426 ahd_unpause(ahd_ddb_softc);
1430 DB_COMMAND(ahd_in, ahd_ddb_in)
1435 if (ahd_ddb_softc == NULL) {
1436 db_error("Must set unit with ahd_sunit first!\n");
1443 while ((c = *modif++) != '\0') {
1459 while (--count >= 0) {
1460 db_printf("%04lx (M)%x: \t", (u_long)addr,
1461 ahd_inb(ahd_ddb_softc, MODE_PTR));
1464 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1467 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1470 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1476 DB_COMMAND_FLAGS(ahd_out, ahd_ddb_out, CS_MORE)
1478 db_expr_t old_value;
1479 db_expr_t new_value;
1482 if (ahd_ddb_softc == NULL) {
1483 db_error("Must set unit with ahd_sunit first!\n");
1499 db_error("Unknown size\n");
1503 while (db_expression(&new_value)) {
1507 old_value = ahd_inb(ahd_ddb_softc, addr);
1508 ahd_outb(ahd_ddb_softc, addr, new_value);
1511 old_value = ahd_inw(ahd_ddb_softc, addr);
1512 ahd_outw(ahd_ddb_softc, addr, new_value);
1515 old_value = ahd_inl(ahd_ddb_softc, addr);
1516 ahd_outl(ahd_ddb_softc, addr, new_value);
1519 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1520 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1521 (u_long)old_value, (u_long)new_value);
1527 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1529 if (ahd_ddb_softc == NULL) {
1530 db_error("Must set unit with ahd_sunit first!\n");
1533 ahd_dump_card_state(ahd_ddb_softc);
1538 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1539 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1540 MODULE_VERSION(ahd, 1);