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Convert to use cam_calc_geometry().
[dragonfly/port-amd64.git] / sys / dev / disk / aic7xxx / aic79xx_osm.c
blob9d20c67dc85b5ee65740e8f29455ca5e5c0e3a69
1 /*
2 * Bus independent FreeBSD shim for the aic7xxx based adaptec SCSI controllers
3 *
4 * Copyright (c) 1994-2002 Justin T. Gibbs.
5 * Copyright (c) 2001-2002 Adaptec Inc.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 *
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU Public License ("GPL").
19 *
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
30 * SUCH DAMAGE.
31 *
32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#27 $
33 *
34 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.14 2003/06/14 22:17:39 njl Exp $
35 * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_osm.c,v 1.14 2007/07/03 20:55:42 pavalos Exp $
36 */
37
38 #include "aic79xx_osm.h"
39 #include "aic79xx_inline.h"
40
41 #include "opt_ddb.h"
42 #ifdef DDB
43 #include <ddb/ddb.h>
44 #endif
45
46 #ifndef AHD_TMODE_ENABLE
47 #define AHD_TMODE_ENABLE 0
48 #endif
49
50 #define ccb_scb_ptr spriv_ptr0
51
52 #if UNUSED
53 static void ahd_dump_targcmd(struct target_cmd *cmd);
54 #endif
55 static int ahd_modevent(module_t mod, int type, void *data);
56 static void ahd_action(struct cam_sim *sim, union ccb *ccb);
57 static void ahd_set_tran_settings(struct ahd_softc *ahd,
58 int our_id, char channel,
59 struct ccb_trans_settings *cts);
60 static void ahd_get_tran_settings(struct ahd_softc *ahd,
61 int our_id, char channel,
62 struct ccb_trans_settings *cts);
63 static void ahd_async(void *callback_arg, uint32_t code,
64 struct cam_path *path, void *arg);
65 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
66 int nsegments, int error);
67 static void ahd_poll(struct cam_sim *sim);
68 static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
69 struct ccb_scsiio *csio, struct scb *scb);
70 static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim,
71 union ccb *ccb);
72 static int ahd_create_path(struct ahd_softc *ahd,
73 char channel, u_int target, u_int lun,
74 struct cam_path **path);
75
76 #if NOT_YET
77 static void ahd_set_recoveryscb(struct ahd_softc *ahd, struct scb *scb);
78 #endif
79
80 static int
81 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target,
82 u_int lun, struct cam_path **path)
83 {
84 path_id_t path_id;
85
86 if (channel == 'B')
87 path_id = cam_sim_path(ahd->platform_data->sim_b);
88 else
89 path_id = cam_sim_path(ahd->platform_data->sim);
90
91 return (xpt_create_path(path, /*periph*/NULL,
92 path_id, target, lun));
93 }
94
95 int
96 ahd_map_int(struct ahd_softc *ahd)
97 {
98 int error;
99
100 /* Hook up our interrupt handler */
101 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq,
102 0, ahd_platform_intr, ahd,
103 &ahd->platform_data->ih, NULL);
104 if (error != 0)
105 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n",
106 error);
107 return (error);
108 }
109
110 /*
111 * Attach all the sub-devices we can find
112 */
113 int
114 ahd_attach(struct ahd_softc *ahd)
115 {
116 char ahd_info[256];
117 struct ccb_setasync csa;
118 struct cam_sim *sim;
119 struct cam_path *path;
120 int count;
121
122 count = 0;
123 sim = NULL;
124
125 ahd_controller_info(ahd, ahd_info);
126 kprintf("%s\n", ahd_info);
127 ahd_lock();
128
129 /*
130 * Construct our SIM entry
131 */
132 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd,
133 device_get_unit(ahd->dev_softc),
134 1, AHD_MAX_QUEUE, NULL);
135 if (sim == NULL)
136 goto fail;
137
138 if (xpt_bus_register(sim, /*bus_id*/0) != CAM_SUCCESS) {
139 cam_sim_free(sim);
140 sim = NULL;
141 goto fail;
142 }
143
144 if (xpt_create_path(&path, /*periph*/NULL,
145 cam_sim_path(sim), CAM_TARGET_WILDCARD,
146 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
147 xpt_bus_deregister(cam_sim_path(sim));
148 cam_sim_free(sim);
149 sim = NULL;
150 goto fail;
151 }
152
153 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
154 csa.ccb_h.func_code = XPT_SASYNC_CB;
155 csa.event_enable = AC_LOST_DEVICE;
156 csa.callback = ahd_async;
157 csa.callback_arg = sim;
158 xpt_action((union ccb *)&csa);
159 count++;
160
161 fail:
162 ahd->platform_data->sim = sim;
163 ahd->platform_data->path = path;
164 if (count != 0) {
165 /* We have to wait until after any system dumps... */
166 ahd->platform_data->eh =
167 EVENTHANDLER_REGISTER(shutdown_post_sync, ahd_shutdown,
168 ahd, SHUTDOWN_PRI_DEFAULT);
169 ahd_intr_enable(ahd, TRUE);
170 }
171
172 ahd_unlock();
173
174 return (count);
175 }
176
177 /*
178 * Catch an interrupt from the adapter
179 */
180 void
181 ahd_platform_intr(void *arg)
182 {
183 struct ahd_softc *ahd;
184
185 ahd = (struct ahd_softc *)arg;
186 ahd_intr(ahd);
187 }
188
189 /*
190 * We have an scb which has been processed by the
191 * adaptor, now we look to see how the operation
192 * went.
193 */
194 void
195 ahd_done(struct ahd_softc *ahd, struct scb *scb)
196 {
197 union ccb *ccb;
198
199 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
200 ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
201
202 ccb = scb->io_ctx;
203 LIST_REMOVE(scb, pending_links);
204
205 callout_stop(&ccb->ccb_h.timeout_ch);
206
207 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
208 bus_dmasync_op_t op;
209
210 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
211 op = BUS_DMASYNC_POSTREAD;
212 else
213 op = BUS_DMASYNC_POSTWRITE;
214 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
215 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
216 }
217
218 #ifdef AHD_TARGET_MODE
219 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
220 struct cam_path *ccb_path;
221
222 /*
223 * If we have finally disconnected, clean up our
224 * pending device state.
225 * XXX - There may be error states that cause where
226 * we will remain connected.
227 */
228 ccb_path = ccb->ccb_h.path;
229 if (ahd->pending_device != NULL
230 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
231
232 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
233 ahd->pending_device = NULL;
234 } else {
235 xpt_print_path(ccb->ccb_h.path);
236 kprintf("Still disconnected\n");
237 ahd_freeze_ccb(ccb);
238 }
239 }
240
241 if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG)
242 ccb->ccb_h.status |= CAM_REQ_CMP;
243 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
244 ahd_free_scb(ahd, scb);
245 xpt_done(ccb);
246 return;
247 }
248 #endif
249
250 /*
251 * If the recovery SCB completes, we have to be
252 * out of our timeout.
253 */
254 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
255 struct scb *list_scb;
256
257 /*
258 * We were able to complete the command successfully,
259 * so reinstate the timeouts for all other pending
260 * commands.
261 */
262 LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) {
263 union ccb *ccb;
264 uint64_t time;
265
266 ccb = list_scb->io_ctx;
267 if (ccb->ccb_h.timeout == CAM_TIME_INFINITY)
268 continue;
269
270 time = ccb->ccb_h.timeout;
271 time *= hz;
272 time /= 1000;
273 callout_reset(&ccb->ccb_h.timeout_ch, time,
274 ahd_timeout, list_scb);
275 }
276
277 if (ahd_get_transaction_status(scb) == CAM_BDR_SENT
278 || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED)
279 ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
280 ahd_print_path(ahd, scb);
281 kprintf("no longer in timeout, status = %x\n",
282 ccb->ccb_h.status);
283 }
284
285 /* Don't clobber any existing error state */
286 if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) {
287 ccb->ccb_h.status |= CAM_REQ_CMP;
288 } else if ((scb->flags & SCB_SENSE) != 0) {
289 /*
290 * We performed autosense retrieval.
291 *
292 * Zero any sense not transferred by the
293 * device. The SCSI spec mandates that any
294 * untransfered data should be assumed to be
295 * zero. Complete the 'bounce' of sense information
296 * through buffers accessible via bus-space by
297 * copying it into the clients csio.
298 */
299 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
300 memcpy(&ccb->csio.sense_data,
301 ahd_get_sense_buf(ahd, scb),
302 /* XXX What size do we want to use??? */
303 sizeof(ccb->csio.sense_data)
304 - ccb->csio.sense_resid);
305 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
306 } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
307 struct scsi_status_iu_header *siu;
308 u_int sense_len;
309 int i;
310
311 /*
312 * Copy only the sense data into the provided buffer.
313 */
314 siu = (struct scsi_status_iu_header *)scb->sense_data;
315 sense_len = MIN(scsi_4btoul(siu->sense_length),
316 sizeof(ccb->csio.sense_data));
317 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
318 memcpy(&ccb->csio.sense_data,
319 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
320 sense_len);
321 kprintf("Copied %d bytes of sense data offset %d:", sense_len,
322 SIU_SENSE_OFFSET(siu));
323 for (i = 0; i < sense_len; i++)
324 kprintf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]);
325 kprintf("\n");
326 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
327 }
328 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
329 ahd_free_scb(ahd, scb);
330 xpt_done(ccb);
331 }
332
333 static void
334 ahd_action(struct cam_sim *sim, union ccb *ccb)
335 {
336 struct ahd_softc *ahd;
337 #ifdef AHD_TARGET_MODE
338 struct ahd_tmode_lstate *lstate;
339 #endif
340 u_int target_id;
341 u_int our_id;
342
343 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
344
345 ahd = (struct ahd_softc *)cam_sim_softc(sim);
346
347 target_id = ccb->ccb_h.target_id;
348 our_id = SIM_SCSI_ID(ahd, sim);
349
350 switch (ccb->ccb_h.func_code) {
351 /* Common cases first */
352 #ifdef AHD_TARGET_MODE
353 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
354 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
355 {
356 struct ahd_tmode_tstate *tstate;
357 cam_status status;
358
359 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
360 &lstate, TRUE);
361
362 if (status != CAM_REQ_CMP) {
363 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
364 /* Response from the black hole device */
365 tstate = NULL;
366 lstate = ahd->black_hole;
367 } else {
368 ccb->ccb_h.status = status;
369 xpt_done(ccb);
370 break;
371 }
372 }
373 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
374
375 ahd_lock();
376 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
377 sim_links.sle);
378 ccb->ccb_h.status = CAM_REQ_INPROG;
379 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
380 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
381 ahd_unlock();
382 break;
383 }
384
385 /*
386 * The target_id represents the target we attempt to
387 * select. In target mode, this is the initiator of
388 * the original command.
389 */
390 our_id = target_id;
391 target_id = ccb->csio.init_id;
392 /* FALLTHROUGH */
393 }
394 #endif
395 case XPT_SCSI_IO: /* Execute the requested I/O operation */
396 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
397 {
398 struct scb *scb;
399 struct hardware_scb *hscb;
400 struct ahd_initiator_tinfo *tinfo;
401 struct ahd_tmode_tstate *tstate;
402 u_int col_idx;
403
404 if ((ahd->flags & AHD_INITIATORROLE) == 0
405 && (ccb->ccb_h.func_code == XPT_SCSI_IO
406 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
407 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
408 xpt_done(ccb);
409 return;
410 }
411
412 /*
413 * get an scb to use.
414 */
415 ahd_lock();
416 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
417 target_id, &tstate);
418 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
419 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
420 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
421 col_idx = AHD_NEVER_COL_IDX;
422 } else {
423 col_idx = AHD_BUILD_COL_IDX(target_id,
424 ccb->ccb_h.target_lun);
425 }
426 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
427
428 xpt_freeze_simq(sim, /*count*/1);
429 ahd->flags |= AHD_RESOURCE_SHORTAGE;
430 ahd_unlock();
431 ccb->ccb_h.status = CAM_REQUEUE_REQ;
432 xpt_done(ccb);
433 return;
434 }
435 ahd_unlock();
436
437 hscb = scb->hscb;
438
439 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
440 ("start scb(%p)\n", scb));
441 scb->io_ctx = ccb;
442 /*
443 * So we can find the SCB when an abort is requested
444 */
445 ccb->ccb_h.ccb_scb_ptr = scb;
446
447 /*
448 * Put all the arguments for the xfer in the scb
449 */
450 hscb->control = 0;
451 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
452 hscb->lun = ccb->ccb_h.target_lun;
453 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
454 hscb->cdb_len = 0;
455 scb->flags |= SCB_DEVICE_RESET;
456 hscb->control |= MK_MESSAGE;
457 hscb->task_management = SIU_TASKMGMT_LUN_RESET;
458 ahd_execute_scb(scb, NULL, 0, 0);
459 } else {
460 #ifdef AHD_TARGET_MODE
461 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
462 struct target_data *tdata;
463
464 tdata = &hscb->shared_data.tdata;
465 if (ahd->pending_device == lstate)
466 scb->flags |= SCB_TARGET_IMMEDIATE;
467 hscb->control |= TARGET_SCB;
468 tdata->target_phases = 0;
469 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
470 tdata->target_phases |= SPHASE_PENDING;
471 tdata->scsi_status =
472 ccb->csio.scsi_status;
473 }
474 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
475 tdata->target_phases |= NO_DISCONNECT;
476
477 tdata->initiator_tag =
478 ahd_htole16(ccb->csio.tag_id);
479 }
480 #endif
481 hscb->task_management = 0;
482 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
483 hscb->control |= ccb->csio.tag_action;
484
485 ahd_setup_data(ahd, sim, &ccb->csio, scb);
486 }
487 break;
488 }
489 #ifdef AHD_TARGET_MODE
490 case XPT_NOTIFY_ACK:
491 case XPT_IMMED_NOTIFY:
492 {
493 struct ahd_tmode_tstate *tstate;
494 struct ahd_tmode_lstate *lstate;
495 cam_status status;
496
497 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
498 &lstate, TRUE);
499
500 if (status != CAM_REQ_CMP) {
501 ccb->ccb_h.status = status;
502 xpt_done(ccb);
503 break;
504 }
505 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
506 sim_links.sle);
507 ccb->ccb_h.status = CAM_REQ_INPROG;
508 ahd_send_lstate_events(ahd, lstate);
509 break;
510 }
511 case XPT_EN_LUN: /* Enable LUN as a target */
512 ahd_handle_en_lun(ahd, sim, ccb);
513 xpt_done(ccb);
514 break;
515 #endif
516 case XPT_ABORT: /* Abort the specified CCB */
517 {
518 ahd_abort_ccb(ahd, sim, ccb);
519 break;
520 }
521 case XPT_SET_TRAN_SETTINGS:
522 {
523 ahd_lock();
524 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
525 SIM_CHANNEL(ahd, sim), &ccb->cts);
526 ahd_unlock();
527 xpt_done(ccb);
528 break;
529 }
530 case XPT_GET_TRAN_SETTINGS:
531 /* Get default/user set transfer settings for the target */
532 {
533 ahd_lock();
534 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
535 SIM_CHANNEL(ahd, sim), &ccb->cts);
536 ahd_unlock();
537 xpt_done(ccb);
538 break;
539 }
540 case XPT_CALC_GEOMETRY:
541 {
542 int extended;
543
544 extended = ahd->flags & AHD_EXTENDED_TRANS_A;
545 cam_calc_geometry(&ccb->ccg, extended);
546 xpt_done(ccb);
547 break;
548 }
549 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
550 {
551 int found;
552
553 ahd_lock();
554 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
555 /*initiate reset*/TRUE);
556 ahd_unlock();
557 if (bootverbose) {
558 xpt_print_path(SIM_PATH(ahd, sim));
559 kprintf("SCSI bus reset delivered. "
560 "%d SCBs aborted.\n", found);
561 }
562 ccb->ccb_h.status = CAM_REQ_CMP;
563 xpt_done(ccb);
564 break;
565 }
566 case XPT_TERM_IO: /* Terminate the I/O process */
567 /* XXX Implement */
568 ccb->ccb_h.status = CAM_REQ_INVALID;
569 xpt_done(ccb);
570 break;
571 case XPT_PATH_INQ: /* Path routing inquiry */
572 {
573 struct ccb_pathinq *cpi = &ccb->cpi;
574
575 cpi->version_num = 1; /* XXX??? */
576 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
577 if ((ahd->features & AHD_WIDE) != 0)
578 cpi->hba_inquiry |= PI_WIDE_16;
579 if ((ahd->features & AHD_TARGETMODE) != 0) {
580 cpi->target_sprt = PIT_PROCESSOR
581 | PIT_DISCONNECT
582 | PIT_TERM_IO;
583 } else {
584 cpi->target_sprt = 0;
585 }
586 cpi->hba_misc = 0;
587 cpi->hba_eng_cnt = 0;
588 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
589 cpi->max_lun = AHD_NUM_LUNS - 1;
590 cpi->initiator_id = ahd->our_id;
591 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
592 cpi->hba_misc |= PIM_NOBUSRESET;
593 }
594 cpi->bus_id = cam_sim_bus(sim);
595 cpi->base_transfer_speed = 3300;
596 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
597 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
598 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
599 cpi->unit_number = cam_sim_unit(sim);
600 #ifdef AHD_NEW_TRAN_SETTINGS
601 cpi->protocol = PROTO_SCSI;
602 cpi->protocol_version = SCSI_REV_2;
603 cpi->transport = XPORT_SPI;
604 cpi->transport_version = 2;
605 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
606 cpi->transport_version = 4;
607 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST;
608 #endif
609 cpi->ccb_h.status = CAM_REQ_CMP;
610 xpt_done(ccb);
611 break;
612 }
613 default:
614 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
615 xpt_done(ccb);
616 break;
617 }
618 }
619
620
621 static void
622 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
623 struct ccb_trans_settings *cts)
624 {
625 #ifdef AHD_NEW_TRAN_SETTINGS
626 struct ahd_devinfo devinfo;
627 struct ccb_trans_settings_scsi *scsi;
628 struct ccb_trans_settings_spi *spi;
629 struct ahd_initiator_tinfo *tinfo;
630 struct ahd_tmode_tstate *tstate;
631 uint16_t *discenable;
632 uint16_t *tagenable;
633 u_int update_type;
634
635 scsi = &cts->proto_specific.scsi;
636 spi = &cts->xport_specific.spi;
637 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
638 cts->ccb_h.target_id,
639 cts->ccb_h.target_lun,
640 SIM_CHANNEL(ahd, sim),
641 ROLE_UNKNOWN);
642 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
643 devinfo.our_scsiid,
644 devinfo.target, &tstate);
645 update_type = 0;
646 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
647 update_type |= AHD_TRANS_GOAL;
648 discenable = &tstate->discenable;
649 tagenable = &tstate->tagenable;
650 tinfo->curr.protocol_version = cts->protocol_version;
651 tinfo->curr.transport_version = cts->transport_version;
652 tinfo->goal.protocol_version = cts->protocol_version;
653 tinfo->goal.transport_version = cts->transport_version;
654 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
655 update_type |= AHD_TRANS_USER;
656 discenable = &ahd->user_discenable;
657 tagenable = &ahd->user_tagenable;
658 tinfo->user.protocol_version = cts->protocol_version;
659 tinfo->user.transport_version = cts->transport_version;
660 } else {
661 cts->ccb_h.status = CAM_REQ_INVALID;
662 return;
663 }
664
665 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
666 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
667 *discenable |= devinfo.target_mask;
668 else
669 *discenable &= ~devinfo.target_mask;
670 }
671
672 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
673 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
674 *tagenable |= devinfo.target_mask;
675 else
676 *tagenable &= ~devinfo.target_mask;
677 }
678
679 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
680 ahd_validate_width(ahd, /*tinfo limit*/NULL,
681 &spi->bus_width, ROLE_UNKNOWN);
682 ahd_set_width(ahd, &devinfo, spi->bus_width,
683 update_type, /*paused*/FALSE);
684 }
685
686 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
687 if (update_type == AHD_TRANS_USER)
688 spi->ppr_options = tinfo->user.ppr_options;
689 else
690 spi->ppr_options = tinfo->goal.ppr_options;
691 }
692
693 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
694 if (update_type == AHD_TRANS_USER)
695 spi->sync_offset = tinfo->user.offset;
696 else
697 spi->sync_offset = tinfo->goal.offset;
698 }
699
700 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
701 if (update_type == AHD_TRANS_USER)
702 spi->sync_period = tinfo->user.period;
703 else
704 spi->sync_period = tinfo->goal.period;
705 }
706
707 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
708 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
709 u_int maxsync;
710
711 maxsync = AHD_SYNCRATE_MAX;
712
713 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
714 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
715
716 if ((*discenable & devinfo.target_mask) == 0)
717 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
718
719 ahd_find_syncrate(ahd, &spi->sync_period,
720 &spi->ppr_options, maxsync);
721 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
722 spi->sync_period, &spi->sync_offset,
723 spi->bus_width, ROLE_UNKNOWN);
724
725 /* We use a period of 0 to represent async */
726 if (spi->sync_offset == 0) {
727 spi->sync_period = 0;
728 spi->ppr_options = 0;
729 }
730
731 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
732 spi->sync_offset, spi->ppr_options,
733 update_type, /*paused*/FALSE);
734 }
735 cts->ccb_h.status = CAM_REQ_CMP;
736 #else
737 struct ahd_devinfo devinfo;
738 struct ahd_initiator_tinfo *tinfo;
739 struct ahd_tmode_tstate *tstate;
740 uint16_t *discenable;
741 uint16_t *tagenable;
742 u_int update_type;
743
744 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
745 cts->ccb_h.target_id,
746 cts->ccb_h.target_lun,
747 SIM_CHANNEL(ahd, sim),
748 ROLE_UNKNOWN);
749 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
750 devinfo.our_scsiid,
751 devinfo.target, &tstate);
752 update_type = 0;
753 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
754 update_type |= AHD_TRANS_GOAL;
755 discenable = &tstate->discenable;
756 tagenable = &tstate->tagenable;
757 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
758 update_type |= AHD_TRANS_USER;
759 discenable = &ahd->user_discenable;
760 tagenable = &ahd->user_tagenable;
761 } else {
762 cts->ccb_h.status = CAM_REQ_INVALID;
763 return;
764 }
765
766 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
767 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
768 *discenable |= devinfo.target_mask;
769 else
770 *discenable &= ~devinfo.target_mask;
771 }
772
773 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
774 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
775 *tagenable |= devinfo.target_mask;
776 else
777 *tagenable &= ~devinfo.target_mask;
778 }
779
780 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
781 ahd_validate_width(ahd, /*tinfo limit*/NULL,
782 &cts->bus_width, ROLE_UNKNOWN);
783 ahd_set_width(ahd, &devinfo, cts->bus_width,
784 update_type, /*paused*/FALSE);
785 }
786
787 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
788 if (update_type == AHD_TRANS_USER)
789 cts->sync_offset = tinfo->user.offset;
790 else
791 cts->sync_offset = tinfo->goal.offset;
792 }
793
794 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
795 if (update_type == AHD_TRANS_USER)
796 cts->sync_period = tinfo->user.period;
797 else
798 cts->sync_period = tinfo->goal.period;
799 }
800
801 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
802 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)
803 || ((cts->valid & CCB_TRANS_TQ_VALID) != 0)
804 || ((cts->valid & CCB_TRANS_DISC_VALID) != 0)) {
805 u_int ppr_options;
806 u_int maxsync;
807
808 maxsync = AHD_SYNCRATE_MAX;
809 ppr_options = 0;
810 if (cts->sync_period <= AHD_SYNCRATE_DT
811 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT) {
812 ppr_options = tinfo->user.ppr_options
813 | MSG_EXT_PPR_DT_REQ;
814 }
815
816 if ((*tagenable & devinfo.target_mask) == 0
817 || (*discenable & devinfo.target_mask) == 0)
818 ppr_options &= ~MSG_EXT_PPR_IU_REQ;
819
820 ahd_find_syncrate(ahd, &cts->sync_period,
821 &ppr_options, maxsync);
822 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
823 cts->sync_period, &cts->sync_offset,
824 MSG_EXT_WDTR_BUS_8_BIT,
825 ROLE_UNKNOWN);
826
827 /* We use a period of 0 to represent async */
828 if (cts->sync_offset == 0) {
829 cts->sync_period = 0;
830 ppr_options = 0;
831 }
832
833 if (ppr_options != 0
834 && tinfo->user.transport_version >= 3) {
835 tinfo->goal.transport_version =
836 tinfo->user.transport_version;
837 tinfo->curr.transport_version =
838 tinfo->user.transport_version;
839 }
840
841 ahd_set_syncrate(ahd, &devinfo, cts->sync_period,
842 cts->sync_offset, ppr_options,
843 update_type, /*paused*/FALSE);
844 }
845 cts->ccb_h.status = CAM_REQ_CMP;
846 #endif
847 }
848
849 static void
850 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
851 struct ccb_trans_settings *cts)
852 {
853 #ifdef AHD_NEW_TRAN_SETTINGS
854 struct ahd_devinfo devinfo;
855 struct ccb_trans_settings_scsi *scsi;
856 struct ccb_trans_settings_spi *spi;
857 struct ahd_initiator_tinfo *targ_info;
858 struct ahd_tmode_tstate *tstate;
859 struct ahd_transinfo *tinfo;
860
861 scsi = &cts->proto_specific.scsi;
862 spi = &cts->xport_specific.spi;
863 ahd_compile_devinfo(&devinfo, our_id,
864 cts->ccb_h.target_id,
865 cts->ccb_h.target_lun,
866 channel, ROLE_UNKNOWN);
867 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
868 devinfo.our_scsiid,
869 devinfo.target, &tstate);
870
871 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
872 tinfo = &targ_info->curr;
873 else
874 tinfo = &targ_info->user;
875
876 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
877 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
878 if (cts->type == CTS_TYPE_USER_SETTINGS) {
879 if ((ahd->user_discenable & devinfo.target_mask) != 0)
880 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
881
882 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
883 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
884 } else {
885 if ((tstate->discenable & devinfo.target_mask) != 0)
886 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
887
888 if ((tstate->tagenable & devinfo.target_mask) != 0)
889 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
890 }
891 cts->protocol_version = tinfo->protocol_version;
892 cts->transport_version = tinfo->transport_version;
893
894 spi->sync_period = tinfo->period;
895 spi->sync_offset = tinfo->offset;
896 spi->bus_width = tinfo->width;
897 spi->ppr_options = tinfo->ppr_options;
898
899 cts->protocol = PROTO_SCSI;
900 cts->transport = XPORT_SPI;
901 spi->valid = CTS_SPI_VALID_SYNC_RATE
902 | CTS_SPI_VALID_SYNC_OFFSET
903 | CTS_SPI_VALID_BUS_WIDTH
904 | CTS_SPI_VALID_PPR_OPTIONS;
905
906 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
907 scsi->valid = CTS_SCSI_VALID_TQ;
908 spi->valid |= CTS_SPI_VALID_DISC;
909 } else {
910 scsi->valid = 0;
911 }
912
913 cts->ccb_h.status = CAM_REQ_CMP;
914 #else
915 struct ahd_devinfo devinfo;
916 struct ahd_initiator_tinfo *targ_info;
917 struct ahd_tmode_tstate *tstate;
918 struct ahd_transinfo *tinfo;
919
920 ahd_compile_devinfo(&devinfo, our_id,
921 cts->ccb_h.target_id,
922 cts->ccb_h.target_lun,
923 channel, ROLE_UNKNOWN);
924 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
925 devinfo.our_scsiid,
926 devinfo.target, &tstate);
927
928 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
929 tinfo = &targ_info->curr;
930 else
931 tinfo = &targ_info->user;
932
933 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
934 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) {
935 if ((ahd->user_discenable & devinfo.target_mask) != 0)
936 cts->flags |= CCB_TRANS_DISC_ENB;
937
938 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
939 cts->flags |= CCB_TRANS_TAG_ENB;
940 } else {
941 if ((tstate->discenable & devinfo.target_mask) != 0)
942 cts->flags |= CCB_TRANS_DISC_ENB;
943
944 if ((tstate->tagenable & devinfo.target_mask) != 0)
945 cts->flags |= CCB_TRANS_TAG_ENB;
946 }
947 cts->sync_period = tinfo->period;
948 cts->sync_offset = tinfo->offset;
949 cts->bus_width = tinfo->width;
950
951 cts->valid = CCB_TRANS_SYNC_RATE_VALID
952 | CCB_TRANS_SYNC_OFFSET_VALID
953 | CCB_TRANS_BUS_WIDTH_VALID;
954
955 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD)
956 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID;
957
958 cts->ccb_h.status = CAM_REQ_CMP;
959 #endif
960 }
961
962 static void
963 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
964 {
965 struct ahd_softc *ahd;
966 struct cam_sim *sim;
967
968 sim = (struct cam_sim *)callback_arg;
969 ahd = (struct ahd_softc *)cam_sim_softc(sim);
970 switch (code) {
971 case AC_LOST_DEVICE:
972 {
973 struct ahd_devinfo devinfo;
974
975 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
976 xpt_path_target_id(path),
977 xpt_path_lun_id(path),
978 SIM_CHANNEL(ahd, sim),
979 ROLE_UNKNOWN);
980
981 /*
982 * Revert to async/narrow transfers
983 * for the next device.
984 */
985 ahd_lock();
986 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
987 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
988 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
989 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
990 /*paused*/FALSE);
991 ahd_unlock();
992 break;
993 }
994 default:
995 break;
996 }
997 }
998
999 static void
1000 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
1001 int error)
1002 {
1003 struct scb *scb;
1004 union ccb *ccb;
1005 struct ahd_softc *ahd;
1006 struct ahd_initiator_tinfo *tinfo;
1007 struct ahd_tmode_tstate *tstate;
1008 u_int mask;
1009
1010 scb = (struct scb *)arg;
1011 ccb = scb->io_ctx;
1012 ahd = scb->ahd_softc;
1013
1014 if (error != 0) {
1015 if (error == EFBIG)
1016 ahd_set_transaction_status(scb, CAM_REQ_TOO_BIG);
1017 else
1018 ahd_set_transaction_status(scb, CAM_REQ_CMP_ERR);
1019 if (nsegments != 0)
1020 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
1021 ahd_lock();
1022 ahd_free_scb(ahd, scb);
1023 ahd_unlock();
1024 xpt_done(ccb);
1025 return;
1026 }
1027 scb->sg_count = 0;
1028 if (nsegments != 0) {
1029 void *sg;
1030 bus_dmasync_op_t op;
1031 u_int i;
1032
1033 /* Copy the segments into our SG list */
1034 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
1035
1036 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
1037 dm_segs->ds_len,
1038 /*last*/i == 1);
1039 dm_segs++;
1040 }
1041
1042 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1043 op = BUS_DMASYNC_PREREAD;
1044 else
1045 op = BUS_DMASYNC_PREWRITE;
1046
1047 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
1048
1049 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1050 struct target_data *tdata;
1051
1052 tdata = &scb->hscb->shared_data.tdata;
1053 tdata->target_phases |= DPHASE_PENDING;
1054 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1055 tdata->data_phase = P_DATAOUT;
1056 else
1057 tdata->data_phase = P_DATAIN;
1058 }
1059 }
1060
1061 ahd_lock();
1062
1063 /*
1064 * Last time we need to check if this SCB needs to
1065 * be aborted.
1066 */
1067 if (ahd_get_transaction_status(scb) != CAM_REQ_INPROG) {
1068 if (nsegments != 0)
1069 bus_dmamap_unload(ahd->buffer_dmat,
1070 scb->dmamap);
1071 ahd_free_scb(ahd, scb);
1072 ahd_unlock();
1073 xpt_done(ccb);
1074 return;
1075 }
1076
1077 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
1078 SCSIID_OUR_ID(scb->hscb->scsiid),
1079 SCSIID_TARGET(ahd, scb->hscb->scsiid),
1080 &tstate);
1081
1082 mask = SCB_GET_TARGET_MASK(ahd, scb);
1083
1084 if ((tstate->discenable & mask) != 0
1085 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
1086 scb->hscb->control |= DISCENB;
1087
1088 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
1089 scb->flags |= SCB_PACKETIZED;
1090 if (scb->hscb->task_management != 0)
1091 scb->hscb->control &= ~MK_MESSAGE;
1092 }
1093
1094 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
1095 && (tinfo->goal.width != 0
1096 || tinfo->goal.period != 0
1097 || tinfo->goal.ppr_options != 0)) {
1098 scb->flags |= SCB_NEGOTIATE;
1099 scb->hscb->control |= MK_MESSAGE;
1100 } else if ((tstate->auto_negotiate & mask) != 0) {
1101 scb->flags |= SCB_AUTO_NEGOTIATE;
1102 scb->hscb->control |= MK_MESSAGE;
1103 }
1104
1105 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
1106
1107 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1108
1109 if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1110 uint64_t time;
1111
1112 if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT)
1113 ccb->ccb_h.timeout = 5 * 1000;
1114
1115 time = ccb->ccb_h.timeout;
1116 time *= hz;
1117 time /= 1000;
1118 callout_reset(&ccb->ccb_h.timeout_ch, time, ahd_timeout, scb);
1119 }
1120
1121 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
1122 /* Define a mapping from our tag to the SCB. */
1123 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
1124 ahd_pause(ahd);
1125 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
1126 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
1127 ahd_unpause(ahd);
1128 } else {
1129 ahd_queue_scb(ahd, scb);
1130 }
1131
1132 ahd_unlock();
1133 }
1134
1135 static void
1136 ahd_poll(struct cam_sim *sim)
1137 {
1138 ahd_intr(cam_sim_softc(sim));
1139 }
1140
1141 static void
1142 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
1143 struct ccb_scsiio *csio, struct scb *scb)
1144 {
1145 struct hardware_scb *hscb;
1146 struct ccb_hdr *ccb_h;
1147
1148 hscb = scb->hscb;
1149 ccb_h = &csio->ccb_h;
1150
1151 csio->resid = 0;
1152 csio->sense_resid = 0;
1153 if (ccb_h->func_code == XPT_SCSI_IO) {
1154 hscb->cdb_len = csio->cdb_len;
1155 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
1156
1157 if (hscb->cdb_len > MAX_CDB_LEN
1158 && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
1159 /*
1160 * Should CAM start to support CDB sizes
1161 * greater than 16 bytes, we could use
1162 * the sense buffer to store the CDB.
1163 */
1164 ahd_set_transaction_status(scb,
1165 CAM_REQ_INVALID);
1166 ahd_lock();
1167 ahd_free_scb(ahd, scb);
1168 ahd_unlock();
1169 xpt_done((union ccb *)csio);
1170 return;
1171 }
1172 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
1173 hscb->shared_data.idata.cdb_from_host.cdbptr =
1174 ahd_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
1175 hscb->shared_data.idata.cdb_from_host.cdblen =
1176 csio->cdb_len;
1177 hscb->cdb_len |= SCB_CDB_LEN_PTR;
1178 } else {
1179 memcpy(hscb->shared_data.idata.cdb,
1180 csio->cdb_io.cdb_ptr,
1181 hscb->cdb_len);
1182 }
1183 } else {
1184 if (hscb->cdb_len > MAX_CDB_LEN) {
1185 ahd_set_transaction_status(scb,
1186 CAM_REQ_INVALID);
1187 ahd_lock();
1188 ahd_free_scb(ahd, scb);
1189 ahd_unlock();
1190 xpt_done((union ccb *)csio);
1191 return;
1192 }
1193 memcpy(hscb->shared_data.idata.cdb,
1194 csio->cdb_io.cdb_bytes, hscb->cdb_len);
1195 }
1196 }
1197
1198 /* Only use S/G if there is a transfer */
1199 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1200 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1201 /* We've been given a pointer to a single buffer */
1202 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1203 int error;
1204
1205 crit_enter();
1206 error = bus_dmamap_load(ahd->buffer_dmat,
1207 scb->dmamap,
1208 csio->data_ptr,
1209 csio->dxfer_len,
1210 ahd_execute_scb,
1211 scb, /*flags*/0);
1212 if (error == EINPROGRESS) {
1213 /*
1214 * So as to maintain ordering,
1215 * freeze the controller queue
1216 * until our mapping is
1217 * returned.
1218 */
1219 xpt_freeze_simq(sim,
1220 /*count*/1);
1221 scb->io_ctx->ccb_h.status |=
1222 CAM_RELEASE_SIMQ;
1223 }
1224 crit_exit();
1225 } else {
1226 struct bus_dma_segment seg;
1227
1228 /* Pointer to physical buffer */
1229 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE)
1230 panic("ahd_setup_data - Transfer size "
1231 "larger than can device max");
1232
1233 seg.ds_addr =
1234 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1235 seg.ds_len = csio->dxfer_len;
1236 ahd_execute_scb(scb, &seg, 1, 0);
1237 }
1238 } else {
1239 struct bus_dma_segment *segs;
1240
1241 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1242 panic("ahd_setup_data - Physical segment "
1243 "pointers unsupported");
1244
1245 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1246 panic("ahd_setup_data - Virtual segment "
1247 "addresses unsupported");
1248
1249 /* Just use the segments provided */
1250 segs = (struct bus_dma_segment *)csio->data_ptr;
1251 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0);
1252 }
1253 } else {
1254 ahd_execute_scb(scb, NULL, 0, 0);
1255 }
1256 }
1257
1258 #if NOT_YET
1259 static void
1260 ahd_set_recoveryscb(struct ahd_softc *ahd, struct scb *scb) {
1261
1262 if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
1263 struct scb *list_scb;
1264
1265 scb->flags |= SCB_RECOVERY_SCB;
1266
1267 /*
1268 * Take all queued, but not sent SCBs out of the equation.
1269 * Also ensure that no new CCBs are queued to us while we
1270 * try to fix this problem.
1271 */
1272 if ((scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
1273 xpt_freeze_simq(SCB_GET_SIM(ahd, scb), /*count*/1);
1274 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
1275 }
1276
1277 /*
1278 * Go through all of our pending SCBs and remove
1279 * any scheduled timeouts for them. We will reschedule
1280 * them after we've successfully fixed this problem.
1281 */
1282 LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) {
1283 union ccb *ccb;
1284
1285 ccb = list_scb->io_ctx;
1286 callout_stop(&ccb->ccb_h.timeout_ch);
1287 }
1288 }
1289 }
1290 #endif
1291
1292 void
1293 ahd_timeout(void *arg)
1294 {
1295 struct scb *scb;
1296 struct ahd_softc *ahd;
1297 ahd_mode_state saved_modes;
1298 int target;
1299 int lun;
1300 char channel;
1301
1302 #if NOT_YET
1303 int i;
1304 int found;
1305 u_int last_phase;
1306 #endif
1307
1308 scb = (struct scb *)arg;
1309 ahd = (struct ahd_softc *)scb->ahd_softc;
1310
1311 ahd_lock();
1312
1313 ahd_pause_and_flushwork(ahd);
1314
1315 saved_modes = ahd_save_modes(ahd);
1316 #if 0
1317 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
1318 ahd_outb(ahd, SCSISIGO, ACKO);
1319 kprintf("set ACK\n");
1320 ahd_outb(ahd, SCSISIGO, 0);
1321 kprintf("clearing Ack\n");
1322 ahd_restore_modes(ahd, saved_modes);
1323 #endif
1324 if ((scb->flags & SCB_ACTIVE) == 0) {
1325 /* Previous timeout took care of me already */
1326 kprintf("%s: Timedout SCB already complete. "
1327 "Interrupts may not be functioning.\n", ahd_name(ahd));
1328 ahd_unpause(ahd);
1329 ahd_unlock();
1330 return;
1331 }
1332
1333 target = SCB_GET_TARGET(ahd, scb);
1334 channel = SCB_GET_CHANNEL(ahd, scb);
1335 lun = SCB_GET_LUN(scb);
1336
1337 ahd_print_path(ahd, scb);
1338 kprintf("SCB 0x%x - timed out\n", SCB_GET_TAG(scb));
1339 ahd_dump_card_state(ahd);
1340 ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
1341 /*initiate reset*/TRUE);
1342 ahd_unlock();
1343 return;
1344 #if NOT_YET
1345 last_phase = ahd_inb(ahd, LASTPHASE);
1346 if (scb->sg_count > 0) {
1347 for (i = 0; i < scb->sg_count; i++) {
1348 kprintf("sg[%d] - Addr 0x%x : Length %d\n",
1349 i,
1350 ((struct ahd_dma_seg *)scb->sg_list)[i].addr,
1351 ((struct ahd_dma_seg *)scb->sg_list)[i].len
1352 & AHD_SG_LEN_MASK);
1353 }
1354 }
1355 if (scb->flags & (SCB_DEVICE_RESET|SCB_ABORT)) {
1356 /*
1357 * Been down this road before.
1358 * Do a full bus reset.
1359 */
1360 bus_reset:
1361 ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
1362 found = ahd_reset_channel(ahd, channel, /*Initiate Reset*/TRUE);
1363 kprintf("%s: Issued Channel %c Bus Reset. "
1364 "%d SCBs aborted\n", ahd_name(ahd), channel, found);
1365 } else {
1366 /*
1367 * If we are a target, transition to bus free and report
1368 * the timeout.
1369 *
1370 * The target/initiator that is holding up the bus may not
1371 * be the same as the one that triggered this timeout
1372 * (different commands have different timeout lengths).
1373 * If the bus is idle and we are actiing as the initiator
1374 * for this request, queue a BDR message to the timed out
1375 * target. Otherwise, if the timed out transaction is
1376 * active:
1377 * Initiator transaction:
1378 * Stuff the message buffer with a BDR message and assert
1379 * ATN in the hopes that the target will let go of the bus
1380 * and go to the mesgout phase. If this fails, we'll
1381 * get another timeout 2 seconds later which will attempt
1382 * a bus reset.
1383 *
1384 * Target transaction:
1385 * Transition to BUS FREE and report the error.
1386 * It's good to be the target!
1387 */
1388 u_int active_scb_index;
1389 u_int saved_scbptr;
1390
1391 saved_scbptr = ahd_get_scbptr(ahd);
1392 active_scb_index = saved_scbptr;
1393
1394 if (last_phase != P_BUSFREE
1395 && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0
1396 && (active_scb_index < ahd->scb_data.numscbs)) {
1397 struct scb *active_scb;
1398
1399 /*
1400 * If the active SCB is not us, assume that
1401 * the active SCB has a longer timeout than
1402 * the timedout SCB, and wait for the active
1403 * SCB to timeout.
1404 */
1405 active_scb = ahd_lookup_scb(ahd, active_scb_index);
1406 if (active_scb != scb) {
1407 struct ccb_hdr *ccbh;
1408 uint64_t newtimeout;
1409
1410 ahd_print_path(ahd, scb);
1411 kprintf("Other SCB Timeout%s",
1412 (scb->flags & SCB_OTHERTCL_TIMEOUT) != 0
1413 ? " again\n" : "\n");
1414 scb->flags |= SCB_OTHERTCL_TIMEOUT;
1415 newtimeout =
1416 MAX(active_scb->io_ctx->ccb_h.timeout,
1417 scb->io_ctx->ccb_h.timeout);
1418 newtimeout *= hz;
1419 newtimeout /= 1000;
1420 ccbh = &scb->io_ctx->ccb_h;
1421 callout_reset(&scb->io_ctx->ccb_h.timeout_ch,
1422 newtimeout, ahd_timeout, scb);
1423 ahd_unpause(ahd);
1424 ahd_unlock();
1425 return;
1426 }
1427
1428 /* It's us */
1429 if ((scb->hscb->control & TARGET_SCB) != 0) {
1430
1431 /*
1432 * Send back any queued up transactions
1433 * and properly record the error condition.
1434 */
1435 ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
1436 SCB_GET_CHANNEL(ahd, scb),
1437 SCB_GET_LUN(scb),
1438 SCB_GET_TAG(scb),
1439 ROLE_TARGET,
1440 CAM_CMD_TIMEOUT);
1441
1442 /* Will clear us from the bus */
1443 ahd_restart(ahd);
1444 ahd_unlock();
1445 return;
1446 }
1447
1448 ahd_set_recoveryscb(ahd, active_scb);
1449 ahd_outb(ahd, MSG_OUT, HOST_MSG);
1450 ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
1451 ahd_print_path(ahd, active_scb);
1452 kprintf("BDR message in message buffer\n");
1453 active_scb->flags |= SCB_DEVICE_RESET;
1454 callout_reset(&active_scb->io_ctx->ccb_h.timeout_ch,
1455 2 * hz, ahd_timeout, active_scb);
1456 ahd_unpause(ahd);
1457 } else {
1458 int disconnected;
1459
1460 /* XXX Shouldn't panic. Just punt instead? */
1461 if ((scb->hscb->control & TARGET_SCB) != 0)
1462 panic("Timed-out target SCB but bus idle");
1463
1464 if (last_phase != P_BUSFREE
1465 && (ahd_inb(ahd, SSTAT0) & TARGET) != 0) {
1466 /* XXX What happened to the SCB? */
1467 /* Hung target selection. Goto busfree */
1468 kprintf("%s: Hung target selection\n",
1469 ahd_name(ahd));
1470 ahd_restart(ahd);
1471 ahd_unlock();
1472 return;
1473 }
1474
1475 if (ahd_search_qinfifo(ahd, target, channel, lun,
1476 SCB_GET_TAG(scb), ROLE_INITIATOR,
1477 /*status*/0, SEARCH_COUNT) > 0) {
1478 disconnected = FALSE;
1479 } else {
1480 disconnected = TRUE;
1481 }
1482
1483 if (disconnected) {
1484
1485 ahd_set_recoveryscb(ahd, scb);
1486 /*
1487 * Actually re-queue this SCB in an attempt
1488 * to select the device before it reconnects.
1489 * In either case (selection or reselection),
1490 * we will now issue a target reset to the
1491 * timed-out device.
1492 *
1493 * Set the MK_MESSAGE control bit indicating
1494 * that we desire to send a message. We
1495 * also set the disconnected flag since
1496 * in the paging case there is no guarantee
1497 * that our SCB control byte matches the
1498 * version on the card. We don't want the
1499 * sequencer to abort the command thinking
1500 * an unsolicited reselection occurred.
1501 */
1502 scb->hscb->control |= MK_MESSAGE|DISCONNECTED;
1503 scb->flags |= SCB_DEVICE_RESET;
1504
1505 /*
1506 * The sequencer will never re-reference the
1507 * in-core SCB. To make sure we are notified
1508 * during reslection, set the MK_MESSAGE flag
1509 * in the card's copy of the SCB.
1510 */
1511 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
1512 ahd_outb(ahd, SCB_CONTROL,
1513 ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE);
1514
1515 /*
1516 * Clear out any entries in the QINFIFO first
1517 * so we are the next SCB for this target
1518 * to run.
1519 */
1520 ahd_search_qinfifo(ahd,
1521 SCB_GET_TARGET(ahd, scb),
1522 channel, SCB_GET_LUN(scb),
1523 SCB_LIST_NULL,
1524 ROLE_INITIATOR,
1525 CAM_REQUEUE_REQ,
1526 SEARCH_COMPLETE);
1527 ahd_print_path(ahd, scb);
1528 kprintf("Queuing a BDR SCB\n");
1529 ahd_qinfifo_requeue_tail(ahd, scb);
1530 ahd_set_scbptr(ahd, saved_scbptr);
1531 callout_reset(&scb->io_ctx->ccb_h.timeout_ch,
1532 2 * hz, ahd_timeout, scb);
1533 ahd_unpause(ahd);
1534 } else {
1535 /* Go "immediatly" to the bus reset */
1536 /* This shouldn't happen */
1537 ahd_set_recoveryscb(ahd, scb);
1538 ahd_print_path(ahd, scb);
1539 kprintf("SCB %d: Immediate reset. "
1540 "Flags = 0x%x\n", SCB_GET_TAG(scb),
1541 scb->flags);
1542 goto bus_reset;
1543 }
1544 }
1545 }
1546 ahd_unlock();
1547 #endif
1548 }
1549
1550 static void
1551 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1552 {
1553 union ccb *abort_ccb;
1554
1555 abort_ccb = ccb->cab.abort_ccb;
1556 switch (abort_ccb->ccb_h.func_code) {
1557 #ifdef AHD_TARGET_MODE
1558 case XPT_ACCEPT_TARGET_IO:
1559 case XPT_IMMED_NOTIFY:
1560 case XPT_CONT_TARGET_IO:
1561 {
1562 struct ahd_tmode_tstate *tstate;
1563 struct ahd_tmode_lstate *lstate;
1564 struct ccb_hdr_slist *list;
1565 cam_status status;
1566
1567 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1568 &lstate, TRUE);
1569
1570 if (status != CAM_REQ_CMP) {
1571 ccb->ccb_h.status = status;
1572 break;
1573 }
1574
1575 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1576 list = &lstate->accept_tios;
1577 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1578 list = &lstate->immed_notifies;
1579 else
1580 list = NULL;
1581
1582 if (list != NULL) {
1583 struct ccb_hdr *curelm;
1584 int found;
1585
1586 curelm = SLIST_FIRST(list);
1587 found = 0;
1588 if (curelm == &abort_ccb->ccb_h) {
1589 found = 1;
1590 SLIST_REMOVE_HEAD(list, sim_links.sle);
1591 } else {
1592 while(curelm != NULL) {
1593 struct ccb_hdr *nextelm;
1594
1595 nextelm =
1596 SLIST_NEXT(curelm, sim_links.sle);
1597
1598 if (nextelm == &abort_ccb->ccb_h) {
1599 found = 1;
1600 SLIST_NEXT(curelm,
1601 sim_links.sle) =
1602 SLIST_NEXT(nextelm,
1603 sim_links.sle);
1604 break;
1605 }
1606 curelm = nextelm;
1607 }
1608 }
1609
1610 if (found) {
1611 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1612 xpt_done(abort_ccb);
1613 ccb->ccb_h.status = CAM_REQ_CMP;
1614 } else {
1615 xpt_print_path(abort_ccb->ccb_h.path);
1616 kprintf("Not found\n");
1617 ccb->ccb_h.status = CAM_PATH_INVALID;
1618 }
1619 break;
1620 }
1621 /* FALLTHROUGH */
1622 }
1623 #endif
1624 case XPT_SCSI_IO:
1625 /* XXX Fully implement the hard ones */
1626 ccb->ccb_h.status = CAM_UA_ABORT;
1627 break;
1628 default:
1629 ccb->ccb_h.status = CAM_REQ_INVALID;
1630 break;
1631 }
1632 xpt_done(ccb);
1633 }
1634
1635 void
1636 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1637 u_int lun, ac_code code, void *opt_arg)
1638 {
1639 struct ccb_trans_settings cts;
1640 struct cam_path *path;
1641 void *arg;
1642 int error;
1643
1644 arg = NULL;
1645 error = ahd_create_path(ahd, channel, target, lun, &path);
1646
1647 if (error != CAM_REQ_CMP)
1648 return;
1649
1650 switch (code) {
1651 case AC_TRANSFER_NEG:
1652 {
1653 #ifdef AHD_NEW_TRAN_SETTINGS
1654 struct ccb_trans_settings_scsi *scsi;
1655
1656 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1657 scsi = &cts.proto_specific.scsi;
1658 #else
1659 cts.flags = CCB_TRANS_CURRENT_SETTINGS;
1660 #endif
1661 cts.ccb_h.path = path;
1662 cts.ccb_h.target_id = target;
1663 cts.ccb_h.target_lun = lun;
1664 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1665 arg = &cts;
1666 #ifdef AHD_NEW_TRAN_SETTINGS
1667 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1668 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1669 #else
1670 cts.valid &= ~CCB_TRANS_TQ_VALID;
1671 cts.flags &= ~CCB_TRANS_TAG_ENB;
1672 #endif
1673 if (opt_arg == NULL)
1674 break;
1675 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1676 #ifdef AHD_NEW_TRAN_SETTINGS
1677 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1678 scsi->valid |= CTS_SCSI_VALID_TQ;
1679 #else
1680 cts.flags |= CCB_TRANS_TAG_ENB;
1681 cts.valid |= CCB_TRANS_TQ_VALID;
1682 #endif
1683 break;
1684 }
1685 case AC_SENT_BDR:
1686 case AC_BUS_RESET:
1687 break;
1688 default:
1689 panic("ahd_send_async: Unexpected async event");
1690 }
1691 xpt_async(code, path, arg);
1692 xpt_free_path(path);
1693 }
1694
1695 void
1696 ahd_platform_set_tags(struct ahd_softc *ahd,
1697 struct ahd_devinfo *devinfo, int enable)
1698 {
1699 }
1700
1701 int
1702 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1703 {
1704 ahd->platform_data = kmalloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1705 M_INTWAIT | M_ZERO);
1706 return (0);
1707 }
1708
1709 void
1710 ahd_platform_free(struct ahd_softc *ahd)
1711 {
1712 struct ahd_platform_data *pdata;
1713
1714 pdata = ahd->platform_data;
1715 if (pdata != NULL) {
1716 if (pdata->regs[0] != NULL)
1717 bus_release_resource(ahd->dev_softc,
1718 pdata->regs_res_type[0],
1719 pdata->regs_res_id[0],
1720 pdata->regs[0]);
1721
1722 if (pdata->regs[1] != NULL)
1723 bus_release_resource(ahd->dev_softc,
1724 pdata->regs_res_type[1],
1725 pdata->regs_res_id[1],
1726 pdata->regs[1]);
1727
1728 if (pdata->irq != NULL)
1729 bus_release_resource(ahd->dev_softc,
1730 pdata->irq_res_type,
1731 0, pdata->irq);
1732
1733 if (pdata->sim_b != NULL) {
1734 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
1735 xpt_free_path(pdata->path_b);
1736 xpt_bus_deregister(cam_sim_path(pdata->sim_b));
1737 cam_sim_free(pdata->sim_b);
1738 }
1739 if (pdata->sim != NULL) {
1740 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1741 xpt_free_path(pdata->path);
1742 xpt_bus_deregister(cam_sim_path(pdata->sim));
1743 cam_sim_free(pdata->sim);
1744 }
1745 if (pdata->eh != NULL)
1746 EVENTHANDLER_DEREGISTER(shutdown_post_sync, pdata->eh);
1747 kfree(ahd->platform_data, M_DEVBUF);
1748 }
1749 }
1750
1751 int
1752 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1753 {
1754 /* We don't sort softcs under FreeBSD so report equal always */
1755 return (0);
1756 }
1757
1758 int
1759 ahd_detach(device_t dev)
1760 {
1761 struct ahd_softc *ahd;
1762
1763 device_printf(dev, "detaching device\n");
1764 ahd = device_get_softc(dev);
1765 ahd = ahd_find_softc(ahd);
1766 if (ahd == NULL) {
1767 device_printf(dev, "aic7xxx already detached\n");
1768 return (ENOENT);
1769 }
1770 ahd_lock();
1771 ahd_intr_enable(ahd, FALSE);
1772 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1773 ahd_unlock();
1774 ahd_free(ahd);
1775 return (0);
1776 }
1777
1778 #if UNUSED
1779 static void
1780 ahd_dump_targcmd(struct target_cmd *cmd)
1781 {
1782 uint8_t *byte;
1783 uint8_t *last_byte;
1784 int i;
1785
1786 byte = &cmd->initiator_channel;
1787 /* Debugging info for received commands */
1788 last_byte = &cmd[1].initiator_channel;
1789
1790 i = 0;
1791 while (byte < last_byte) {
1792 if (i == 0)
1793 kprintf("\t");
1794 kprintf("%#x", *byte++);
1795 i++;
1796 if (i == 8) {
1797 kprintf("\n");
1798 i = 0;
1799 } else {
1800 kprintf(", ");
1801 }
1802 }
1803 }
1804 #endif
1805
1806 static int
1807 ahd_modevent(module_t mod, int type, void *data)
1808 {
1809 /* XXX Deal with busy status on unload. */
1810 return 0;
1811 }
1812
1813 static moduledata_t ahd_mod = {
1814 "ahd",
1815 ahd_modevent,
1816 NULL
1817 };
1818
1819 /********************************** DDB Hooks *********************************/
1820 #ifdef DDB
1821 static struct ahd_softc *ahd_ddb_softc;
1822 static int ahd_ddb_paused;
1823 static int ahd_ddb_paused_on_entry;
1824 DB_COMMAND(ahd_set_unit, ahd_ddb_set_unit)
1825 {
1826 struct ahd_softc *list_ahd;
1827
1828 ahd_ddb_softc = NULL;
1829 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1830 if (list_ahd->unit == addr)
1831 ahd_ddb_softc = list_ahd;
1832 }
1833 if (ahd_ddb_softc == NULL)
1834 db_error("No matching softc found!\n");
1835 }
1836
1837 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1838 {
1839 if (ahd_ddb_softc == NULL) {
1840 db_error("Must set unit with ahd_set_unit first!\n");
1841 return;
1842 }
1843 if (ahd_ddb_paused == 0) {
1844 ahd_ddb_paused++;
1845 if (ahd_is_paused(ahd_ddb_softc)) {
1846 ahd_ddb_paused_on_entry++;
1847 return;
1848 }
1849 ahd_pause(ahd_ddb_softc);
1850 }
1851 }
1852
1853 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1854 {
1855 if (ahd_ddb_softc == NULL) {
1856 db_error("Must set unit with ahd_set_unit first!\n");
1857 return;
1858 }
1859 if (ahd_ddb_paused != 0) {
1860 ahd_ddb_paused = 0;
1861 if (ahd_ddb_paused_on_entry)
1862 return;
1863 ahd_unpause(ahd_ddb_softc);
1864 } else if (ahd_ddb_paused_on_entry != 0) {
1865 /* Two unpauses to clear a paused on entry. */
1866 ahd_ddb_paused_on_entry = 0;
1867 ahd_unpause(ahd_ddb_softc);
1868 }
1869 }
1870
1871 DB_COMMAND(ahd_in, ahd_ddb_in)
1872 {
1873 int c;
1874 int size;
1875
1876 if (ahd_ddb_softc == NULL) {
1877 db_error("Must set unit with ahd_set_unit first!\n");
1878 return;
1879 }
1880 if (have_addr == 0)
1881 return;
1882
1883 size = 1;
1884 while ((c = *modif++) != '\0') {
1885 switch (c) {
1886 case 'b':
1887 size = 1;
1888 break;
1889 case 'w':
1890 size = 2;
1891 break;
1892 case 'l':
1893 size = 4;
1894 break;
1895 }
1896 }
1897
1898 if (count <= 0)
1899 count = 1;
1900 while (--count >= 0) {
1901 db_printf("%04lx (M)%x: \t", (u_long)addr,
1902 ahd_inb(ahd_ddb_softc, MODE_PTR));
1903 switch (size) {
1904 case 1:
1905 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1906 break;
1907 case 2:
1908 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1909 break;
1910 case 4:
1911 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1912 break;
1913 }
1914 }
1915 }
1916
1917 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL)
1918 {
1919 db_expr_t old_value;
1920 db_expr_t new_value;
1921 int size;
1922
1923 if (ahd_ddb_softc == NULL) {
1924 db_error("Must set unit with ahd_set_unit first!\n");
1925 return;
1926 }
1927
1928 switch (modif[0]) {
1929 case '\0':
1930 case 'b':
1931 size = 1;
1932 break;
1933 case 'h':
1934 size = 2;
1935 break;
1936 case 'l':
1937 size = 4;
1938 break;
1939 default:
1940 db_error("Unknown size\n");
1941 return;
1942 }
1943
1944 while (db_expression(&new_value)) {
1945 switch (size) {
1946 default:
1947 case 1:
1948 old_value = ahd_inb(ahd_ddb_softc, addr);
1949 ahd_outb(ahd_ddb_softc, addr, new_value);
1950 break;
1951 case 2:
1952 old_value = ahd_inw(ahd_ddb_softc, addr);
1953 ahd_outw(ahd_ddb_softc, addr, new_value);
1954 break;
1955 case 4:
1956 old_value = ahd_inl(ahd_ddb_softc, addr);
1957 ahd_outl(ahd_ddb_softc, addr, new_value);
1958 break;
1959 }
1960 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1961 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1962 (u_long)old_value, (u_long)new_value);
1963 addr += size;
1964 }
1965 db_skip_to_eol();
1966 }
1967
1968 #endif
1969
1970
1971 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1972 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1973 MODULE_VERSION(ahd, 1);
A repo for keeping AMD64 port code before merging with the master