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_NEEDGIANT, 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_NEEDGIANT, 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 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
271 csa.ccb_h.func_code = XPT_SASYNC_CB;
272 csa.event_enable = AC_LOST_DEVICE;
273 csa.callback = ahd_async;
274 csa.callback_arg = sim;
275 xpt_action((union ccb *)&csa);
279 ahd->platform_data->sim = sim;
280 ahd->platform_data->path = path;
283 /* We have to wait until after any system dumps... */
284 ahd->platform_data->eh =
285 EVENTHANDLER_REGISTER(shutdown_final, ahd_shutdown,
286 ahd, SHUTDOWN_PRI_DEFAULT);
287 ahd_intr_enable(ahd, TRUE);
294 * Catch an interrupt from the adapter
297 ahd_platform_intr(void *arg)
299 struct ahd_softc *ahd;
301 ahd = (struct ahd_softc *)arg;
308 * We have an scb which has been processed by the
309 * adaptor, now we look to see how the operation
313 ahd_done(struct ahd_softc *ahd, struct scb *scb)
317 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
318 ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
321 LIST_REMOVE(scb, pending_links);
322 if ((scb->flags & SCB_TIMEDOUT) != 0)
323 LIST_REMOVE(scb, timedout_links);
325 callout_stop(&scb->io_timer);
327 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
330 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
331 op = BUS_DMASYNC_POSTREAD;
333 op = BUS_DMASYNC_POSTWRITE;
334 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
335 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
338 #ifdef AHD_TARGET_MODE
339 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
340 struct cam_path *ccb_path;
343 * If we have finally disconnected, clean up our
344 * pending device state.
345 * XXX - There may be error states that cause where
346 * we will remain connected.
348 ccb_path = ccb->ccb_h.path;
349 if (ahd->pending_device != NULL
350 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
351 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
352 ahd->pending_device = NULL;
354 xpt_print_path(ccb->ccb_h.path);
355 printf("Still disconnected\n");
360 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
361 ccb->ccb_h.status |= CAM_REQ_CMP;
362 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
363 ahd_free_scb(ahd, scb);
369 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
370 struct scb *list_scb;
372 ahd->scb_data.recovery_scbs--;
374 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
375 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
376 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
378 if (ahd->scb_data.recovery_scbs == 0) {
380 * All recovery actions have completed successfully,
381 * so reinstate the timeouts for all other pending
384 LIST_FOREACH(list_scb,
385 &ahd->pending_scbs, pending_links) {
386 aic_scb_timer_reset(list_scb,
387 aic_get_timeout(scb));
390 ahd_print_path(ahd, scb);
391 printf("no longer in timeout, status = %x\n",
396 /* Don't clobber any existing error state */
397 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
398 ccb->ccb_h.status |= CAM_REQ_CMP;
399 } else if ((scb->flags & SCB_SENSE) != 0) {
401 * We performed autosense retrieval.
403 * Zero any sense not transferred by the
404 * device. The SCSI spec mandates that any
405 * untransfered data should be assumed to be
406 * zero. Complete the 'bounce' of sense information
407 * through buffers accessible via bus-space by
408 * copying it into the clients csio.
410 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
411 memcpy(&ccb->csio.sense_data,
412 ahd_get_sense_buf(ahd, scb),
413 /* XXX What size do we want to use??? */
414 sizeof(ccb->csio.sense_data)
415 - ccb->csio.sense_resid);
416 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
417 } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
418 struct scsi_status_iu_header *siu;
422 * Copy only the sense data into the provided buffer.
424 siu = (struct scsi_status_iu_header *)scb->sense_data;
425 sense_len = MIN(scsi_4btoul(siu->sense_length),
426 sizeof(ccb->csio.sense_data));
427 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
428 memcpy(&ccb->csio.sense_data,
429 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
432 if ((ahd_debug & AHD_SHOW_SENSE) != 0) {
433 uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data;
436 printf("Copied %d bytes of sense data offset %d:",
437 sense_len, SIU_SENSE_OFFSET(siu));
438 for (i = 0; i < sense_len; i++)
439 printf(" 0x%x", *sense_data++);
443 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
445 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
446 ahd_free_scb(ahd, scb);
451 ahd_action(struct cam_sim *sim, union ccb *ccb)
453 struct ahd_softc *ahd;
454 #ifdef AHD_TARGET_MODE
455 struct ahd_tmode_lstate *lstate;
460 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
462 ahd = (struct ahd_softc *)cam_sim_softc(sim);
464 target_id = ccb->ccb_h.target_id;
465 our_id = SIM_SCSI_ID(ahd, sim);
467 switch (ccb->ccb_h.func_code) {
468 /* Common cases first */
469 #ifdef AHD_TARGET_MODE
470 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
471 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
473 struct ahd_tmode_tstate *tstate;
476 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
479 if (status != CAM_REQ_CMP) {
480 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
481 /* Response from the black hole device */
483 lstate = ahd->black_hole;
485 ccb->ccb_h.status = status;
490 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
491 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
493 ccb->ccb_h.status = CAM_REQ_INPROG;
494 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
495 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
500 * The target_id represents the target we attempt to
501 * select. In target mode, this is the initiator of
502 * the original command.
505 target_id = ccb->csio.init_id;
509 case XPT_SCSI_IO: /* Execute the requested I/O operation */
510 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
513 struct hardware_scb *hscb;
514 struct ahd_initiator_tinfo *tinfo;
515 struct ahd_tmode_tstate *tstate;
518 if ((ahd->flags & AHD_INITIATORROLE) == 0
519 && (ccb->ccb_h.func_code == XPT_SCSI_IO
520 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
521 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
529 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
531 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
532 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
533 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
534 col_idx = AHD_NEVER_COL_IDX;
536 col_idx = AHD_BUILD_COL_IDX(target_id,
537 ccb->ccb_h.target_lun);
539 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
540 xpt_freeze_simq(sim, /*count*/1);
541 ahd->flags |= AHD_RESOURCE_SHORTAGE;
542 ccb->ccb_h.status = CAM_REQUEUE_REQ;
549 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
550 ("start scb(%p)\n", scb));
553 * So we can find the SCB when an abort is requested
555 ccb->ccb_h.ccb_scb_ptr = scb;
558 * Put all the arguments for the xfer in the scb
561 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
562 hscb->lun = ccb->ccb_h.target_lun;
563 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
565 scb->flags |= SCB_DEVICE_RESET;
566 hscb->control |= MK_MESSAGE;
567 hscb->task_management = SIU_TASKMGMT_LUN_RESET;
568 ahd_execute_scb(scb, NULL, 0, 0);
570 #ifdef AHD_TARGET_MODE
571 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
572 struct target_data *tdata;
574 tdata = &hscb->shared_data.tdata;
575 if (ahd->pending_device == lstate)
576 scb->flags |= SCB_TARGET_IMMEDIATE;
577 hscb->control |= TARGET_SCB;
578 tdata->target_phases = 0;
579 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
580 tdata->target_phases |= SPHASE_PENDING;
582 ccb->csio.scsi_status;
584 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
585 tdata->target_phases |= NO_DISCONNECT;
587 tdata->initiator_tag =
588 ahd_htole16(ccb->csio.tag_id);
591 hscb->task_management = 0;
592 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
593 hscb->control |= ccb->csio.tag_action;
595 ahd_setup_data(ahd, sim, &ccb->csio, scb);
599 #ifdef AHD_TARGET_MODE
600 case XPT_NOTIFY_ACKNOWLEDGE:
601 case XPT_IMMEDIATE_NOTIFY:
603 struct ahd_tmode_tstate *tstate;
604 struct ahd_tmode_lstate *lstate;
607 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
610 if (status != CAM_REQ_CMP) {
611 ccb->ccb_h.status = status;
615 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
617 ccb->ccb_h.status = CAM_REQ_INPROG;
618 ahd_send_lstate_events(ahd, lstate);
621 case XPT_EN_LUN: /* Enable LUN as a target */
622 ahd_handle_en_lun(ahd, sim, ccb);
626 case XPT_ABORT: /* Abort the specified CCB */
628 ahd_abort_ccb(ahd, sim, ccb);
631 case XPT_SET_TRAN_SETTINGS:
633 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
634 SIM_CHANNEL(ahd, sim), &ccb->cts);
638 case XPT_GET_TRAN_SETTINGS:
639 /* Get default/user set transfer settings for the target */
641 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
642 SIM_CHANNEL(ahd, sim), &ccb->cts);
646 case XPT_CALC_GEOMETRY:
648 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
652 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
656 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
657 /*initiate reset*/TRUE);
659 xpt_print_path(SIM_PATH(ahd, sim));
660 printf("SCSI bus reset delivered. "
661 "%d SCBs aborted.\n", found);
663 ccb->ccb_h.status = CAM_REQ_CMP;
667 case XPT_TERM_IO: /* Terminate the I/O process */
669 ccb->ccb_h.status = CAM_REQ_INVALID;
672 case XPT_PATH_INQ: /* Path routing inquiry */
674 struct ccb_pathinq *cpi = &ccb->cpi;
676 cpi->version_num = 1; /* XXX??? */
677 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
678 if ((ahd->features & AHD_WIDE) != 0)
679 cpi->hba_inquiry |= PI_WIDE_16;
680 if ((ahd->features & AHD_TARGETMODE) != 0) {
681 cpi->target_sprt = PIT_PROCESSOR
685 cpi->target_sprt = 0;
688 cpi->hba_eng_cnt = 0;
689 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
690 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
691 cpi->initiator_id = ahd->our_id;
692 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
693 cpi->hba_misc |= PIM_NOBUSRESET;
695 cpi->bus_id = cam_sim_bus(sim);
696 cpi->base_transfer_speed = 3300;
697 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
698 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
699 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
700 cpi->unit_number = cam_sim_unit(sim);
701 cpi->protocol = PROTO_SCSI;
702 cpi->protocol_version = SCSI_REV_2;
703 cpi->transport = XPORT_SPI;
704 cpi->transport_version = 4;
705 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST
708 cpi->ccb_h.status = CAM_REQ_CMP;
713 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
720 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
721 struct ccb_trans_settings *cts)
723 struct ahd_devinfo devinfo;
724 struct ccb_trans_settings_scsi *scsi;
725 struct ccb_trans_settings_spi *spi;
726 struct ahd_initiator_tinfo *tinfo;
727 struct ahd_tmode_tstate *tstate;
728 uint16_t *discenable;
732 scsi = &cts->proto_specific.scsi;
733 spi = &cts->xport_specific.spi;
734 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
735 cts->ccb_h.target_id,
736 cts->ccb_h.target_lun,
737 SIM_CHANNEL(ahd, sim),
739 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
741 devinfo.target, &tstate);
743 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
744 update_type |= AHD_TRANS_GOAL;
745 discenable = &tstate->discenable;
746 tagenable = &tstate->tagenable;
747 tinfo->curr.protocol_version = cts->protocol_version;
748 tinfo->curr.transport_version = cts->transport_version;
749 tinfo->goal.protocol_version = cts->protocol_version;
750 tinfo->goal.transport_version = cts->transport_version;
751 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
752 update_type |= AHD_TRANS_USER;
753 discenable = &ahd->user_discenable;
754 tagenable = &ahd->user_tagenable;
755 tinfo->user.protocol_version = cts->protocol_version;
756 tinfo->user.transport_version = cts->transport_version;
758 cts->ccb_h.status = CAM_REQ_INVALID;
762 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
763 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
764 *discenable |= devinfo.target_mask;
766 *discenable &= ~devinfo.target_mask;
769 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
770 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
771 *tagenable |= devinfo.target_mask;
773 *tagenable &= ~devinfo.target_mask;
776 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
777 ahd_validate_width(ahd, /*tinfo limit*/NULL,
778 &spi->bus_width, ROLE_UNKNOWN);
779 ahd_set_width(ahd, &devinfo, spi->bus_width,
780 update_type, /*paused*/FALSE);
783 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
784 if (update_type == AHD_TRANS_USER)
785 spi->ppr_options = tinfo->user.ppr_options;
787 spi->ppr_options = tinfo->goal.ppr_options;
790 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
791 if (update_type == AHD_TRANS_USER)
792 spi->sync_offset = tinfo->user.offset;
794 spi->sync_offset = tinfo->goal.offset;
797 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
798 if (update_type == AHD_TRANS_USER)
799 spi->sync_period = tinfo->user.period;
801 spi->sync_period = tinfo->goal.period;
804 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
805 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
808 maxsync = AHD_SYNCRATE_MAX;
810 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
811 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
813 if ((*discenable & devinfo.target_mask) == 0)
814 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
816 ahd_find_syncrate(ahd, &spi->sync_period,
817 &spi->ppr_options, maxsync);
818 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
819 spi->sync_period, &spi->sync_offset,
820 spi->bus_width, ROLE_UNKNOWN);
822 /* We use a period of 0 to represent async */
823 if (spi->sync_offset == 0) {
824 spi->sync_period = 0;
825 spi->ppr_options = 0;
828 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
829 spi->sync_offset, spi->ppr_options,
830 update_type, /*paused*/FALSE);
832 cts->ccb_h.status = CAM_REQ_CMP;
836 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
837 struct ccb_trans_settings *cts)
839 struct ahd_devinfo devinfo;
840 struct ccb_trans_settings_scsi *scsi;
841 struct ccb_trans_settings_spi *spi;
842 struct ahd_initiator_tinfo *targ_info;
843 struct ahd_tmode_tstate *tstate;
844 struct ahd_transinfo *tinfo;
846 scsi = &cts->proto_specific.scsi;
847 spi = &cts->xport_specific.spi;
848 ahd_compile_devinfo(&devinfo, our_id,
849 cts->ccb_h.target_id,
850 cts->ccb_h.target_lun,
851 channel, ROLE_UNKNOWN);
852 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
854 devinfo.target, &tstate);
856 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
857 tinfo = &targ_info->curr;
859 tinfo = &targ_info->user;
861 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
862 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
863 if (cts->type == CTS_TYPE_USER_SETTINGS) {
864 if ((ahd->user_discenable & devinfo.target_mask) != 0)
865 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
867 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
868 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
870 if ((tstate->discenable & devinfo.target_mask) != 0)
871 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
873 if ((tstate->tagenable & devinfo.target_mask) != 0)
874 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
876 cts->protocol_version = tinfo->protocol_version;
877 cts->transport_version = tinfo->transport_version;
879 spi->sync_period = tinfo->period;
880 spi->sync_offset = tinfo->offset;
881 spi->bus_width = tinfo->width;
882 spi->ppr_options = tinfo->ppr_options;
884 cts->protocol = PROTO_SCSI;
885 cts->transport = XPORT_SPI;
886 spi->valid = CTS_SPI_VALID_SYNC_RATE
887 | CTS_SPI_VALID_SYNC_OFFSET
888 | CTS_SPI_VALID_BUS_WIDTH
889 | CTS_SPI_VALID_PPR_OPTIONS;
891 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
892 scsi->valid = CTS_SCSI_VALID_TQ;
893 spi->valid |= CTS_SPI_VALID_DISC;
898 cts->ccb_h.status = CAM_REQ_CMP;
902 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
904 struct ahd_softc *ahd;
907 sim = (struct cam_sim *)callback_arg;
908 ahd = (struct ahd_softc *)cam_sim_softc(sim);
912 struct ahd_devinfo devinfo;
914 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
915 xpt_path_target_id(path),
916 xpt_path_lun_id(path),
917 SIM_CHANNEL(ahd, sim),
921 * Revert to async/narrow transfers
922 * for the next device.
924 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
925 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
926 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
927 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
937 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
942 struct ahd_softc *ahd;
943 struct ahd_initiator_tinfo *tinfo;
944 struct ahd_tmode_tstate *tstate;
947 scb = (struct scb *)arg;
949 ahd = scb->ahd_softc;
953 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
955 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
957 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
958 ahd_free_scb(ahd, scb);
963 if (nsegments != 0) {
968 /* Copy the segments into our SG list */
969 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
970 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
976 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
977 op = BUS_DMASYNC_PREREAD;
979 op = BUS_DMASYNC_PREWRITE;
981 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
983 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
984 struct target_data *tdata;
986 tdata = &scb->hscb->shared_data.tdata;
987 tdata->target_phases |= DPHASE_PENDING;
988 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
989 tdata->data_phase = P_DATAOUT;
991 tdata->data_phase = P_DATAIN;
996 * Last time we need to check if this SCB needs to
999 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
1001 bus_dmamap_unload(ahd->buffer_dmat,
1003 ahd_free_scb(ahd, scb);
1008 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
1009 SCSIID_OUR_ID(scb->hscb->scsiid),
1010 SCSIID_TARGET(ahd, scb->hscb->scsiid),
1013 mask = SCB_GET_TARGET_MASK(ahd, scb);
1015 if ((tstate->discenable & mask) != 0
1016 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1017 scb->hscb->control |= DISCENB;
1019 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
1020 scb->flags |= SCB_PACKETIZED;
1021 if (scb->hscb->task_management != 0)
1022 scb->hscb->control &= ~MK_MESSAGE;
1025 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1026 && (tinfo->goal.width != 0
1027 || tinfo->goal.period != 0
1028 || tinfo->goal.ppr_options != 0)) {
1029 scb->flags |= SCB_NEGOTIATE;
1030 scb->hscb->control |= MK_MESSAGE;
1031 } else if ((tstate->auto_negotiate & mask) != 0) {
1032 scb->flags |= SCB_AUTO_NEGOTIATE;
1033 scb->hscb->control |= MK_MESSAGE;
1036 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
1038 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1040 aic_scb_timer_start(scb);
1042 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1043 /* Define a mapping from our tag to the SCB. */
1044 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
1046 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
1047 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
1050 ahd_queue_scb(ahd, scb);
1056 ahd_poll(struct cam_sim *sim)
1058 ahd_intr(cam_sim_softc(sim));
1062 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
1063 struct ccb_scsiio *csio, struct scb *scb)
1065 struct hardware_scb *hscb;
1066 struct ccb_hdr *ccb_h;
1070 ccb_h = &csio->ccb_h;
1073 csio->sense_resid = 0;
1074 if (ccb_h->func_code == XPT_SCSI_IO) {
1075 hscb->cdb_len = csio->cdb_len;
1076 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1077 if (hscb->cdb_len > MAX_CDB_LEN
1078 && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
1080 * Should CAM start to support CDB sizes
1081 * greater than 16 bytes, we could use
1082 * the sense buffer to store the CDB.
1084 aic_set_transaction_status(scb,
1086 ahd_free_scb(ahd, scb);
1087 xpt_done((union ccb *)csio);
1090 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
1091 hscb->shared_data.idata.cdb_from_host.cdbptr =
1092 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
1093 hscb->shared_data.idata.cdb_from_host.cdblen =
1095 hscb->cdb_len |= SCB_CDB_LEN_PTR;
1097 memcpy(hscb->shared_data.idata.cdb,
1098 csio->cdb_io.cdb_ptr,
1102 if (hscb->cdb_len > MAX_CDB_LEN) {
1103 aic_set_transaction_status(scb,
1105 ahd_free_scb(ahd, scb);
1106 xpt_done((union ccb *)csio);
1109 memcpy(hscb->shared_data.idata.cdb,
1110 csio->cdb_io.cdb_bytes, hscb->cdb_len);
1114 error = bus_dmamap_load_ccb(ahd->buffer_dmat,
1119 if (error == EINPROGRESS) {
1121 * So as to maintain ordering, freeze the controller queue
1122 * until our mapping is returned.
1124 xpt_freeze_simq(sim, /*count*/1);
1125 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
1130 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1132 union ccb *abort_ccb;
1134 abort_ccb = ccb->cab.abort_ccb;
1135 switch (abort_ccb->ccb_h.func_code) {
1136 #ifdef AHD_TARGET_MODE
1137 case XPT_ACCEPT_TARGET_IO:
1138 case XPT_IMMEDIATE_NOTIFY:
1139 case XPT_CONT_TARGET_IO:
1141 struct ahd_tmode_tstate *tstate;
1142 struct ahd_tmode_lstate *lstate;
1143 struct ccb_hdr_slist *list;
1146 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1149 if (status != CAM_REQ_CMP) {
1150 ccb->ccb_h.status = status;
1154 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1155 list = &lstate->accept_tios;
1156 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
1157 list = &lstate->immed_notifies;
1162 struct ccb_hdr *curelm;
1165 curelm = SLIST_FIRST(list);
1167 if (curelm == &abort_ccb->ccb_h) {
1169 SLIST_REMOVE_HEAD(list, sim_links.sle);
1171 while(curelm != NULL) {
1172 struct ccb_hdr *nextelm;
1175 SLIST_NEXT(curelm, sim_links.sle);
1177 if (nextelm == &abort_ccb->ccb_h) {
1190 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1191 xpt_done(abort_ccb);
1192 ccb->ccb_h.status = CAM_REQ_CMP;
1194 xpt_print_path(abort_ccb->ccb_h.path);
1195 printf("Not found\n");
1196 ccb->ccb_h.status = CAM_PATH_INVALID;
1204 /* XXX Fully implement the hard ones */
1205 ccb->ccb_h.status = CAM_UA_ABORT;
1208 ccb->ccb_h.status = CAM_REQ_INVALID;
1215 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1216 u_int lun, ac_code code, void *opt_arg)
1218 struct ccb_trans_settings cts;
1219 struct cam_path *path;
1224 error = ahd_create_path(ahd, channel, target, lun, &path);
1226 if (error != CAM_REQ_CMP)
1230 case AC_TRANSFER_NEG:
1232 struct ccb_trans_settings_scsi *scsi;
1234 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1235 scsi = &cts.proto_specific.scsi;
1236 cts.ccb_h.path = path;
1237 cts.ccb_h.target_id = target;
1238 cts.ccb_h.target_lun = lun;
1239 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1241 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1242 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1243 if (opt_arg == NULL)
1245 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1246 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1247 scsi->valid |= CTS_SCSI_VALID_TQ;
1254 panic("ahd_send_async: Unexpected async event");
1256 xpt_async(code, path, arg);
1257 xpt_free_path(path);
1261 ahd_platform_set_tags(struct ahd_softc *ahd,
1262 struct ahd_devinfo *devinfo, int enable)
1267 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1269 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1271 if (ahd->platform_data == NULL)
1277 ahd_platform_free(struct ahd_softc *ahd)
1279 struct ahd_platform_data *pdata;
1281 pdata = ahd->platform_data;
1282 if (pdata != NULL) {
1283 if (pdata->regs[0] != NULL)
1284 bus_release_resource(ahd->dev_softc,
1285 pdata->regs_res_type[0],
1286 pdata->regs_res_id[0],
1289 if (pdata->regs[1] != NULL)
1290 bus_release_resource(ahd->dev_softc,
1291 pdata->regs_res_type[1],
1292 pdata->regs_res_id[1],
1295 if (pdata->irq != NULL)
1296 bus_release_resource(ahd->dev_softc,
1297 pdata->irq_res_type,
1300 if (pdata->sim != NULL) {
1301 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1302 xpt_free_path(pdata->path);
1303 xpt_bus_deregister(cam_sim_path(pdata->sim));
1304 cam_sim_free(pdata->sim, /*free_devq*/TRUE);
1306 if (pdata->eh != NULL)
1307 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
1308 free(ahd->platform_data, M_DEVBUF);
1313 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1315 /* We don't sort softcs under FreeBSD so report equal always */
1320 ahd_detach(device_t dev)
1322 struct ahd_softc *ahd;
1324 device_printf(dev, "detaching device\n");
1325 ahd = device_get_softc(dev);
1327 TAILQ_REMOVE(&ahd_tailq, ahd, links);
1328 ahd_intr_enable(ahd, FALSE);
1329 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1337 ahd_dump_targcmd(struct target_cmd *cmd)
1343 byte = &cmd->initiator_channel;
1344 /* Debugging info for received commands */
1345 last_byte = &cmd[1].initiator_channel;
1348 while (byte < last_byte) {
1351 printf("%#x", *byte++);
1364 ahd_modevent(module_t mod, int type, void *data)
1366 /* XXX Deal with busy status on unload. */
1367 /* XXX Deal with unknown events */
1371 static moduledata_t ahd_mod = {
1377 /********************************** DDB Hooks *********************************/
1379 static struct ahd_softc *ahd_ddb_softc;
1380 static int ahd_ddb_paused;
1381 static int ahd_ddb_paused_on_entry;
1382 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1384 struct ahd_softc *list_ahd;
1386 ahd_ddb_softc = NULL;
1387 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1388 if (list_ahd->unit == addr)
1389 ahd_ddb_softc = list_ahd;
1391 if (ahd_ddb_softc == NULL)
1392 db_error("No matching softc found!\n");
1395 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1397 if (ahd_ddb_softc == NULL) {
1398 db_error("Must set unit with ahd_sunit first!\n");
1401 if (ahd_ddb_paused == 0) {
1403 if (ahd_is_paused(ahd_ddb_softc)) {
1404 ahd_ddb_paused_on_entry++;
1407 ahd_pause(ahd_ddb_softc);
1411 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1413 if (ahd_ddb_softc == NULL) {
1414 db_error("Must set unit with ahd_sunit first!\n");
1417 if (ahd_ddb_paused != 0) {
1419 if (ahd_ddb_paused_on_entry)
1421 ahd_unpause(ahd_ddb_softc);
1422 } else if (ahd_ddb_paused_on_entry != 0) {
1423 /* Two unpauses to clear a paused on entry. */
1424 ahd_ddb_paused_on_entry = 0;
1425 ahd_unpause(ahd_ddb_softc);
1429 DB_COMMAND(ahd_in, ahd_ddb_in)
1434 if (ahd_ddb_softc == NULL) {
1435 db_error("Must set unit with ahd_sunit first!\n");
1442 while ((c = *modif++) != '\0') {
1458 while (--count >= 0) {
1459 db_printf("%04lx (M)%x: \t", (u_long)addr,
1460 ahd_inb(ahd_ddb_softc, MODE_PTR));
1463 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1466 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1469 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1475 DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_table, CS_MORE, NULL)
1477 db_expr_t old_value;
1478 db_expr_t new_value;
1481 if (ahd_ddb_softc == NULL) {
1482 db_error("Must set unit with ahd_sunit first!\n");
1498 db_error("Unknown size\n");
1502 while (db_expression(&new_value)) {
1506 old_value = ahd_inb(ahd_ddb_softc, addr);
1507 ahd_outb(ahd_ddb_softc, addr, new_value);
1510 old_value = ahd_inw(ahd_ddb_softc, addr);
1511 ahd_outw(ahd_ddb_softc, addr, new_value);
1514 old_value = ahd_inl(ahd_ddb_softc, addr);
1515 ahd_outl(ahd_ddb_softc, addr, new_value);
1518 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1519 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1520 (u_long)old_value, (u_long)new_value);
1526 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1528 if (ahd_ddb_softc == NULL) {
1529 db_error("Must set unit with ahd_sunit first!\n");
1532 ahd_dump_card_state(ahd_ddb_softc);
1537 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1538 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1539 MODULE_VERSION(ahd, 1);