?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Make CAM_NEW_TRAN_CODE default.
[dragonfly.git] / sys / dev / disk / aic7xxx / aic79xx_osm.c
blob2a39ef79c031fbcbd5926981b7a6386fdefc2003
1 /*
2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers
3 *
4 * Copyright (c) 1994-2002, 2004 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#35 $
33 *
34 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.23 2005/12/04 02:12:40 ru Exp $
35 * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_osm.c,v 1.23 2008/02/10 00:01:02 pavalos Exp $
36 */
37
38 #include "aic79xx_osm.h"
39 #include "aic79xx_inline.h"
40
41 #include <sys/kthread.h>
42
43 #include "opt_ddb.h"
44 #ifdef DDB
45 #include <ddb/ddb.h>
46 #endif
47
48 #ifndef AHD_TMODE_ENABLE
49 #define AHD_TMODE_ENABLE 0
50 #endif
51
52 #include "aic_osm_lib.c"
53
54 #define ccb_scb_ptr spriv_ptr0
55
56 #if 0
57 static void ahd_dump_targcmd(struct target_cmd *cmd);
58 #endif
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,
75 union ccb *ccb);
76 static int ahd_create_path(struct ahd_softc *ahd,
77 char channel, u_int target, u_int lun,
78 struct cam_path **path);
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 path_id = cam_sim_path(ahd->platform_data->sim);
87 return (xpt_create_path(path, /*periph*/NULL,
88 path_id, target, lun));
89 }
90
91 int
92 ahd_map_int(struct ahd_softc *ahd)
93 {
94 int error;
95
96 /* Hook up our interrupt handler */
97 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq,
98 INTR_MPSAFE, ahd_platform_intr, ahd,
99 &ahd->platform_data->ih, NULL);
100 if (error != 0)
101 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n",
102 error);
103 return (error);
104 }
105
106 /*
107 * Attach all the sub-devices we can find
108 */
109 int
110 ahd_attach(struct ahd_softc *ahd)
111 {
112 char ahd_info[256];
113 struct ccb_setasync csa;
114 struct cam_sim *sim;
115 struct cam_path *path;
116 int count;
117
118 count = 0;
119 sim = NULL;
120
121 /*
122 * Create a thread to perform all recovery.
123 */
124 if (ahd_spawn_recovery_thread(ahd) != 0)
125 goto fail;
126
127 ahd_controller_info(ahd, ahd_info);
128 kprintf("%s\n", ahd_info);
129 ahd_lock(ahd);
130
131 /*
132 * Construct our SIM entry
133 */
134 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd,
135 device_get_unit(ahd->dev_softc),
136 1, AHD_MAX_QUEUE, NULL);
137 if (sim == NULL)
138 goto fail;
139
140 if (xpt_bus_register(sim, /*bus_id*/0) != CAM_SUCCESS) {
141 cam_sim_free(sim);
142 sim = NULL;
143 goto fail;
144 }
145
146 if (xpt_create_path(&path, /*periph*/NULL,
147 cam_sim_path(sim), CAM_TARGET_WILDCARD,
148 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
149 xpt_bus_deregister(cam_sim_path(sim));
150 cam_sim_free(sim);
151 sim = NULL;
152 goto fail;
153 }
154
155 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
156 csa.ccb_h.func_code = XPT_SASYNC_CB;
157 csa.event_enable = AC_LOST_DEVICE;
158 csa.callback = ahd_async;
159 csa.callback_arg = sim;
160 xpt_action((union ccb *)&csa);
161 count++;
162
163 fail:
164 ahd->platform_data->sim = sim;
165 ahd->platform_data->path = path;
166 ahd_unlock(ahd);
167 if (count != 0) {
168 /* We have to wait until after any system dumps... */
169 ahd->platform_data->eh =
170 EVENTHANDLER_REGISTER(shutdown_post_sync, ahd_shutdown,
171 ahd, SHUTDOWN_PRI_DRIVER);
172 ahd_intr_enable(ahd, TRUE);
173 }
174
175 return (count);
176 }
177
178 /*
179 * Catch an interrupt from the adapter
180 */
181 void
182 ahd_platform_intr(void *arg)
183 {
184 struct ahd_softc *ahd;
185
186 ahd = (struct ahd_softc *)arg;
187 ahd_lock(ahd);
188 ahd_intr(ahd);
189 ahd_unlock(ahd);
190 }
191
192 /*
193 * We have an scb which has been processed by the
194 * adaptor, now we look to see how the operation
195 * went.
196 */
197 void
198 ahd_done(struct ahd_softc *ahd, struct scb *scb)
199 {
200 union ccb *ccb;
201
202 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
203 ("ahd_done - scb %d\n", SCB_GET_TAG(scb)));
204
205 ccb = scb->io_ctx;
206 LIST_REMOVE(scb, pending_links);
207 if ((scb->flags & SCB_TIMEDOUT) != 0)
208 LIST_REMOVE(scb, timedout_links);
209
210 callout_stop(&scb->io_timer);
211
212 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
213 bus_dmasync_op_t op;
214
215 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
216 op = BUS_DMASYNC_POSTREAD;
217 else
218 op = BUS_DMASYNC_POSTWRITE;
219 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
220 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
221 }
222
223 #ifdef AHD_TARGET_MODE
224 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
225 struct cam_path *ccb_path;
226
227 /*
228 * If we have finally disconnected, clean up our
229 * pending device state.
230 * XXX - There may be error states that cause where
231 * we will remain connected.
232 */
233 ccb_path = ccb->ccb_h.path;
234 if (ahd->pending_device != NULL
235 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) {
236
237 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
238 ahd->pending_device = NULL;
239 } else {
240 xpt_print_path(ccb->ccb_h.path);
241 kprintf("Still disconnected\n");
242 ahd_freeze_ccb(ccb);
243 }
244 }
245
246 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
247 ccb->ccb_h.status |= CAM_REQ_CMP;
248 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
249 ahd_free_scb(ahd, scb);
250 xpt_done(ccb);
251 return;
252 }
253 #endif
254
255 if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
256 struct scb *list_scb;
257
258 ahd->scb_data.recovery_scbs--;
259
260 if (aic_get_transaction_status(scb) == CAM_BDR_SENT
261 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
262 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
263
264 if (ahd->scb_data.recovery_scbs == 0) {
265 /*
266 * All recovery actions have completed successfully,
267 * so reinstate the timeouts for all other pending
268 * commands.
269 */
270 LIST_FOREACH(list_scb,
271 &ahd->pending_scbs, pending_links) {
272
273 aic_scb_timer_reset(list_scb,
274 aic_get_timeout(scb));
275 }
276
277 ahd_print_path(ahd, scb);
278 kprintf("no longer in timeout, status = %x\n",
279 ccb->ccb_h.status);
280 }
281 }
282
283 /* Don't clobber any existing error state */
284 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
285 ccb->ccb_h.status |= CAM_REQ_CMP;
286 } else if ((scb->flags & SCB_SENSE) != 0) {
287 /*
288 * We performed autosense retrieval.
289 *
290 * Zero any sense not transferred by the
291 * device. The SCSI spec mandates that any
292 * untransfered data should be assumed to be
293 * zero. Complete the 'bounce' of sense information
294 * through buffers accessible via bus-space by
295 * copying it into the clients csio.
296 */
297 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
298 memcpy(&ccb->csio.sense_data,
299 ahd_get_sense_buf(ahd, scb),
300 /* XXX What size do we want to use??? */
301 sizeof(ccb->csio.sense_data)
302 - ccb->csio.sense_resid);
303 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
304 } else if ((scb->flags & SCB_PKT_SENSE) != 0) {
305 struct scsi_status_iu_header *siu;
306 u_int sense_len;
307 int i;
308
309 /*
310 * Copy only the sense data into the provided buffer.
311 */
312 siu = (struct scsi_status_iu_header *)scb->sense_data;
313 sense_len = MIN(scsi_4btoul(siu->sense_length),
314 sizeof(ccb->csio.sense_data));
315 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
316 memcpy(&ccb->csio.sense_data,
317 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
318 sense_len);
319 kprintf("Copied %d bytes of sense data offset %d:", sense_len,
320 SIU_SENSE_OFFSET(siu));
321 for (i = 0; i < sense_len; i++)
322 kprintf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]);
323 kprintf("\n");
324 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
325 }
326 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
327 ahd_free_scb(ahd, scb);
328 xpt_done(ccb);
329 }
330
331 static void
332 ahd_action(struct cam_sim *sim, union ccb *ccb)
333 {
334 struct ahd_softc *ahd;
335 #ifdef AHD_TARGET_MODE
336 struct ahd_tmode_lstate *lstate;
337 #endif
338 u_int target_id;
339 u_int our_id;
340
341 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n"));
342
343 ahd = (struct ahd_softc *)cam_sim_softc(sim);
344
345 target_id = ccb->ccb_h.target_id;
346 our_id = SIM_SCSI_ID(ahd, sim);
347
348 switch (ccb->ccb_h.func_code) {
349 /* Common cases first */
350 #ifdef AHD_TARGET_MODE
351 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
352 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
353 {
354 struct ahd_tmode_tstate *tstate;
355 cam_status status;
356
357 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
358 &lstate, TRUE);
359
360 if (status != CAM_REQ_CMP) {
361 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
362 /* Response from the black hole device */
363 tstate = NULL;
364 lstate = ahd->black_hole;
365 } else {
366 ccb->ccb_h.status = status;
367 xpt_done(ccb);
368 break;
369 }
370 }
371 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
372
373 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
374 sim_links.sle);
375 ccb->ccb_h.status = CAM_REQ_INPROG;
376 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0)
377 ahd_run_tqinfifo(ahd, /*paused*/FALSE);
378 break;
379 }
380
381 /*
382 * The target_id represents the target we attempt to
383 * select. In target mode, this is the initiator of
384 * the original command.
385 */
386 our_id = target_id;
387 target_id = ccb->csio.init_id;
388 /* FALLTHROUGH */
389 }
390 #endif
391 case XPT_SCSI_IO: /* Execute the requested I/O operation */
392 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
393 {
394 struct scb *scb;
395 struct hardware_scb *hscb;
396 struct ahd_initiator_tinfo *tinfo;
397 struct ahd_tmode_tstate *tstate;
398 u_int col_idx;
399
400 if ((ahd->flags & AHD_INITIATORROLE) == 0
401 && (ccb->ccb_h.func_code == XPT_SCSI_IO
402 || ccb->ccb_h.func_code == XPT_RESET_DEV)) {
403 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
404 xpt_done(ccb);
405 return;
406 }
407
408 /*
409 * get an scb to use.
410 */
411 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id,
412 target_id, &tstate);
413 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
414 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0
415 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
416 col_idx = AHD_NEVER_COL_IDX;
417 } else {
418 col_idx = AHD_BUILD_COL_IDX(target_id,
419 ccb->ccb_h.target_lun);
420 }
421 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
422
423 xpt_freeze_simq(sim, /*count*/1);
424 ahd->flags |= AHD_RESOURCE_SHORTAGE;
425 ccb->ccb_h.status = CAM_REQUEUE_REQ;
426 xpt_done(ccb);
427 return;
428 }
429
430 hscb = scb->hscb;
431
432 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
433 ("start scb(%p)\n", scb));
434 scb->io_ctx = ccb;
435 /*
436 * So we can find the SCB when an abort is requested
437 */
438 ccb->ccb_h.ccb_scb_ptr = scb;
439
440 /*
441 * Put all the arguments for the xfer in the scb
442 */
443 hscb->control = 0;
444 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id);
445 hscb->lun = ccb->ccb_h.target_lun;
446 if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
447 hscb->cdb_len = 0;
448 scb->flags |= SCB_DEVICE_RESET;
449 hscb->control |= MK_MESSAGE;
450 hscb->task_management = SIU_TASKMGMT_LUN_RESET;
451 ahd_execute_scb(scb, NULL, 0, 0);
452 } else {
453 #ifdef AHD_TARGET_MODE
454 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
455 struct target_data *tdata;
456
457 tdata = &hscb->shared_data.tdata;
458 if (ahd->pending_device == lstate)
459 scb->flags |= SCB_TARGET_IMMEDIATE;
460 hscb->control |= TARGET_SCB;
461 tdata->target_phases = 0;
462 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
463 tdata->target_phases |= SPHASE_PENDING;
464 tdata->scsi_status =
465 ccb->csio.scsi_status;
466 }
467 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
468 tdata->target_phases |= NO_DISCONNECT;
469
470 tdata->initiator_tag =
471 ahd_htole16(ccb->csio.tag_id);
472 }
473 #endif
474 hscb->task_management = 0;
475 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
476 hscb->control |= ccb->csio.tag_action;
477
478 ahd_setup_data(ahd, sim, &ccb->csio, scb);
479 }
480 break;
481 }
482 #ifdef AHD_TARGET_MODE
483 case XPT_NOTIFY_ACK:
484 case XPT_IMMED_NOTIFY:
485 {
486 struct ahd_tmode_tstate *tstate;
487 struct ahd_tmode_lstate *lstate;
488 cam_status status;
489
490 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate,
491 &lstate, TRUE);
492
493 if (status != CAM_REQ_CMP) {
494 ccb->ccb_h.status = status;
495 xpt_done(ccb);
496 break;
497 }
498 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
499 sim_links.sle);
500 ccb->ccb_h.status = CAM_REQ_INPROG;
501 ahd_send_lstate_events(ahd, lstate);
502 break;
503 }
504 case XPT_EN_LUN: /* Enable LUN as a target */
505 ahd_handle_en_lun(ahd, sim, ccb);
506 xpt_done(ccb);
507 break;
508 #endif
509 case XPT_ABORT: /* Abort the specified CCB */
510 {
511 ahd_abort_ccb(ahd, sim, ccb);
512 break;
513 }
514 case XPT_SET_TRAN_SETTINGS:
515 {
516 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
517 SIM_CHANNEL(ahd, sim), &ccb->cts);
518 xpt_done(ccb);
519 break;
520 }
521 case XPT_GET_TRAN_SETTINGS:
522 /* Get default/user set transfer settings for the target */
523 {
524 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim),
525 SIM_CHANNEL(ahd, sim), &ccb->cts);
526 xpt_done(ccb);
527 break;
528 }
529 case XPT_CALC_GEOMETRY:
530 {
531 cam_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A);
532 xpt_done(ccb);
533 break;
534 }
535 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
536 {
537 int found;
538
539 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim),
540 /*initiate reset*/TRUE);
541 if (bootverbose) {
542 xpt_print_path(SIM_PATH(ahd, sim));
543 kprintf("SCSI bus reset delivered. "
544 "%d SCBs aborted.\n", found);
545 }
546 ccb->ccb_h.status = CAM_REQ_CMP;
547 xpt_done(ccb);
548 break;
549 }
550 case XPT_TERM_IO: /* Terminate the I/O process */
551 /* XXX Implement */
552 ccb->ccb_h.status = CAM_REQ_INVALID;
553 xpt_done(ccb);
554 break;
555 case XPT_PATH_INQ: /* Path routing inquiry */
556 {
557 struct ccb_pathinq *cpi = &ccb->cpi;
558
559 cpi->version_num = 1; /* XXX??? */
560 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
561 if ((ahd->features & AHD_WIDE) != 0)
562 cpi->hba_inquiry |= PI_WIDE_16;
563 if ((ahd->features & AHD_TARGETMODE) != 0) {
564 cpi->target_sprt = PIT_PROCESSOR
565 | PIT_DISCONNECT
566 | PIT_TERM_IO;
567 } else {
568 cpi->target_sprt = 0;
569 }
570 cpi->hba_misc = 0;
571 cpi->hba_eng_cnt = 0;
572 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7;
573 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1;
574 cpi->initiator_id = ahd->our_id;
575 if ((ahd->flags & AHD_RESET_BUS_A) == 0) {
576 cpi->hba_misc |= PIM_NOBUSRESET;
577 }
578 cpi->bus_id = cam_sim_bus(sim);
579 cpi->base_transfer_speed = 3300;
580 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
581 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
582 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
583 cpi->unit_number = cam_sim_unit(sim);
584 cpi->protocol = PROTO_SCSI;
585 cpi->protocol_version = SCSI_REV_2;
586 cpi->transport = XPORT_SPI;
587 cpi->transport_version = 2;
588 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
589 cpi->transport_version = 4;
590 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST;
591 cpi->ccb_h.status = CAM_REQ_CMP;
592 xpt_done(ccb);
593 break;
594 }
595 default:
596 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
597 xpt_done(ccb);
598 break;
599 }
600 }
601
602
603 static void
604 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
605 struct ccb_trans_settings *cts)
606 {
607 struct ahd_devinfo devinfo;
608 struct ccb_trans_settings_scsi *scsi;
609 struct ccb_trans_settings_spi *spi;
610 struct ahd_initiator_tinfo *tinfo;
611 struct ahd_tmode_tstate *tstate;
612 uint16_t *discenable;
613 uint16_t *tagenable;
614 u_int update_type;
615
616 scsi = &cts->proto_specific.scsi;
617 spi = &cts->xport_specific.spi;
618 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
619 cts->ccb_h.target_id,
620 cts->ccb_h.target_lun,
621 SIM_CHANNEL(ahd, sim),
622 ROLE_UNKNOWN);
623 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
624 devinfo.our_scsiid,
625 devinfo.target, &tstate);
626 update_type = 0;
627 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
628 update_type |= AHD_TRANS_GOAL;
629 discenable = &tstate->discenable;
630 tagenable = &tstate->tagenable;
631 tinfo->curr.protocol_version = cts->protocol_version;
632 tinfo->curr.transport_version = cts->transport_version;
633 tinfo->goal.protocol_version = cts->protocol_version;
634 tinfo->goal.transport_version = cts->transport_version;
635 } else if (cts->type == CTS_TYPE_USER_SETTINGS) {
636 update_type |= AHD_TRANS_USER;
637 discenable = &ahd->user_discenable;
638 tagenable = &ahd->user_tagenable;
639 tinfo->user.protocol_version = cts->protocol_version;
640 tinfo->user.transport_version = cts->transport_version;
641 } else {
642 cts->ccb_h.status = CAM_REQ_INVALID;
643 return;
644 }
645
646 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
647 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
648 *discenable |= devinfo.target_mask;
649 else
650 *discenable &= ~devinfo.target_mask;
651 }
652
653 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
654 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
655 *tagenable |= devinfo.target_mask;
656 else
657 *tagenable &= ~devinfo.target_mask;
658 }
659
660 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
661 ahd_validate_width(ahd, /*tinfo limit*/NULL,
662 &spi->bus_width, ROLE_UNKNOWN);
663 ahd_set_width(ahd, &devinfo, spi->bus_width,
664 update_type, /*paused*/FALSE);
665 }
666
667 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
668 if (update_type == AHD_TRANS_USER)
669 spi->ppr_options = tinfo->user.ppr_options;
670 else
671 spi->ppr_options = tinfo->goal.ppr_options;
672 }
673
674 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
675 if (update_type == AHD_TRANS_USER)
676 spi->sync_offset = tinfo->user.offset;
677 else
678 spi->sync_offset = tinfo->goal.offset;
679 }
680
681 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
682 if (update_type == AHD_TRANS_USER)
683 spi->sync_period = tinfo->user.period;
684 else
685 spi->sync_period = tinfo->goal.period;
686 }
687
688 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
689 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
690 u_int maxsync;
691
692 maxsync = AHD_SYNCRATE_MAX;
693
694 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
695 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
696
697 if ((*discenable & devinfo.target_mask) == 0)
698 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
699
700 ahd_find_syncrate(ahd, &spi->sync_period,
701 &spi->ppr_options, maxsync);
702 ahd_validate_offset(ahd, /*tinfo limit*/NULL,
703 spi->sync_period, &spi->sync_offset,
704 spi->bus_width, ROLE_UNKNOWN);
705
706 /* We use a period of 0 to represent async */
707 if (spi->sync_offset == 0) {
708 spi->sync_period = 0;
709 spi->ppr_options = 0;
710 }
711
712 ahd_set_syncrate(ahd, &devinfo, spi->sync_period,
713 spi->sync_offset, spi->ppr_options,
714 update_type, /*paused*/FALSE);
715 }
716 cts->ccb_h.status = CAM_REQ_CMP;
717 }
718
719 static void
720 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel,
721 struct ccb_trans_settings *cts)
722 {
723 struct ahd_devinfo devinfo;
724 struct ccb_trans_settings_scsi *scsi;
725 struct ccb_trans_settings_spi *spi;
726 struct ahd_initiator_tinfo *targ_info;
727 struct ahd_tmode_tstate *tstate;
728 struct ahd_transinfo *tinfo;
729
730 scsi = &cts->proto_specific.scsi;
731 spi = &cts->xport_specific.spi;
732 ahd_compile_devinfo(&devinfo, our_id,
733 cts->ccb_h.target_id,
734 cts->ccb_h.target_lun,
735 channel, ROLE_UNKNOWN);
736 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel,
737 devinfo.our_scsiid,
738 devinfo.target, &tstate);
739
740 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
741 tinfo = &targ_info->curr;
742 else
743 tinfo = &targ_info->user;
744
745 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
746 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
747 if (cts->type == CTS_TYPE_USER_SETTINGS) {
748 if ((ahd->user_discenable & devinfo.target_mask) != 0)
749 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
750
751 if ((ahd->user_tagenable & devinfo.target_mask) != 0)
752 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
753 } else {
754 if ((tstate->discenable & devinfo.target_mask) != 0)
755 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
756
757 if ((tstate->tagenable & devinfo.target_mask) != 0)
758 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
759 }
760 cts->protocol_version = tinfo->protocol_version;
761 cts->transport_version = tinfo->transport_version;
762
763 spi->sync_period = tinfo->period;
764 spi->sync_offset = tinfo->offset;
765 spi->bus_width = tinfo->width;
766 spi->ppr_options = tinfo->ppr_options;
767
768 cts->protocol = PROTO_SCSI;
769 cts->transport = XPORT_SPI;
770 spi->valid = CTS_SPI_VALID_SYNC_RATE
771 | CTS_SPI_VALID_SYNC_OFFSET
772 | CTS_SPI_VALID_BUS_WIDTH
773 | CTS_SPI_VALID_PPR_OPTIONS;
774
775 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
776 scsi->valid = CTS_SCSI_VALID_TQ;
777 spi->valid |= CTS_SPI_VALID_DISC;
778 } else {
779 scsi->valid = 0;
780 }
781
782 cts->ccb_h.status = CAM_REQ_CMP;
783 }
784
785 static void
786 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
787 {
788 struct ahd_softc *ahd;
789 struct cam_sim *sim;
790
791 sim = (struct cam_sim *)callback_arg;
792 ahd = (struct ahd_softc *)cam_sim_softc(sim);
793 switch (code) {
794 case AC_LOST_DEVICE:
795 {
796 struct ahd_devinfo devinfo;
797
798 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim),
799 xpt_path_target_id(path),
800 xpt_path_lun_id(path),
801 SIM_CHANNEL(ahd, sim),
802 ROLE_UNKNOWN);
803
804 /*
805 * Revert to async/narrow transfers
806 * for the next device.
807 */
808 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
809 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE);
810 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
811 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR,
812 /*paused*/FALSE);
813 break;
814 }
815 default:
816 break;
817 }
818 }
819
820 static void
821 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
822 int error)
823 {
824 struct scb *scb;
825 union ccb *ccb;
826 struct ahd_softc *ahd;
827 struct ahd_initiator_tinfo *tinfo;
828 struct ahd_tmode_tstate *tstate;
829 u_int mask;
830
831 scb = (struct scb *)arg;
832 ccb = scb->io_ctx;
833 ahd = scb->ahd_softc;
834
835 if (error != 0) {
836 if (error == EFBIG)
837 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
838 else
839 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
840 if (nsegments != 0)
841 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap);
842 ahd_free_scb(ahd, scb);
843 xpt_done(ccb);
844 return;
845 }
846 scb->sg_count = 0;
847 if (nsegments != 0) {
848 void *sg;
849 bus_dmasync_op_t op;
850 u_int i;
851
852 /* Copy the segments into our SG list */
853 for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
854
855 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
856 dm_segs->ds_len,
857 /*last*/i == 1);
858 dm_segs++;
859 }
860
861 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
862 op = BUS_DMASYNC_PREREAD;
863 else
864 op = BUS_DMASYNC_PREWRITE;
865
866 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op);
867
868 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
869 struct target_data *tdata;
870
871 tdata = &scb->hscb->shared_data.tdata;
872 tdata->target_phases |= DPHASE_PENDING;
873 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
874 tdata->data_phase = P_DATAOUT;
875 else
876 tdata->data_phase = P_DATAIN;
877 }
878 }
879
880 /*
881 * Last time we need to check if this SCB needs to
882 * be aborted.
883 */
884 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
885 if (nsegments != 0)
886 bus_dmamap_unload(ahd->buffer_dmat,
887 scb->dmamap);
888 ahd_free_scb(ahd, scb);
889 xpt_done(ccb);
890 return;
891 }
892
893 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
894 SCSIID_OUR_ID(scb->hscb->scsiid),
895 SCSIID_TARGET(ahd, scb->hscb->scsiid),
896 &tstate);
897
898 mask = SCB_GET_TARGET_MASK(ahd, scb);
899
900 if ((tstate->discenable & mask) != 0
901 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
902 scb->hscb->control |= DISCENB;
903
904 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
905 scb->flags |= SCB_PACKETIZED;
906 if (scb->hscb->task_management != 0)
907 scb->hscb->control &= ~MK_MESSAGE;
908 }
909
910 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
911 && (tinfo->goal.width != 0
912 || tinfo->goal.period != 0
913 || tinfo->goal.ppr_options != 0)) {
914 scb->flags |= SCB_NEGOTIATE;
915 scb->hscb->control |= MK_MESSAGE;
916 } else if ((tstate->auto_negotiate & mask) != 0) {
917 scb->flags |= SCB_AUTO_NEGOTIATE;
918 scb->hscb->control |= MK_MESSAGE;
919 }
920
921 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
922
923 ccb->ccb_h.status |= CAM_SIM_QUEUED;
924
925 aic_scb_timer_start(scb);
926
927 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
928 /* Define a mapping from our tag to the SCB. */
929 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
930 ahd_pause(ahd);
931 ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
932 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
933 ahd_unpause(ahd);
934 } else {
935 ahd_queue_scb(ahd, scb);
936 }
937 }
938
939 static void
940 ahd_poll(struct cam_sim *sim)
941 {
942 ahd_intr(cam_sim_softc(sim));
943 }
944
945 static void
946 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim,
947 struct ccb_scsiio *csio, struct scb *scb)
948 {
949 struct hardware_scb *hscb;
950 struct ccb_hdr *ccb_h;
951
952 hscb = scb->hscb;
953 ccb_h = &csio->ccb_h;
954
955 csio->resid = 0;
956 csio->sense_resid = 0;
957 if (ccb_h->func_code == XPT_SCSI_IO) {
958 hscb->cdb_len = csio->cdb_len;
959 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
960
961 if (hscb->cdb_len > MAX_CDB_LEN
962 && (ccb_h->flags & CAM_CDB_PHYS) == 0) {
963
964 /*
965 * Should CAM start to support CDB sizes
966 * greater than 16 bytes, we could use
967 * the sense buffer to store the CDB.
968 */
969 aic_set_transaction_status(scb,
970 CAM_REQ_INVALID);
971 ahd_free_scb(ahd, scb);
972 xpt_done((union ccb *)csio);
973 return;
974 }
975 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) {
976 hscb->shared_data.idata.cdb_from_host.cdbptr =
977 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr);
978 hscb->shared_data.idata.cdb_from_host.cdblen =
979 csio->cdb_len;
980 hscb->cdb_len |= SCB_CDB_LEN_PTR;
981 } else {
982 memcpy(hscb->shared_data.idata.cdb,
983 csio->cdb_io.cdb_ptr,
984 hscb->cdb_len);
985 }
986 } else {
987 if (hscb->cdb_len > MAX_CDB_LEN) {
988
989 aic_set_transaction_status(scb,
990 CAM_REQ_INVALID);
991 ahd_free_scb(ahd, scb);
992 xpt_done((union ccb *)csio);
993 return;
994 }
995 memcpy(hscb->shared_data.idata.cdb,
996 csio->cdb_io.cdb_bytes, hscb->cdb_len);
997 }
998 }
999
1000 /* Only use S/G if there is a transfer */
1001 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1002 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
1003 /* We've been given a pointer to a single buffer */
1004 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
1005 int error;
1006
1007 crit_enter();
1008 error = bus_dmamap_load(ahd->buffer_dmat,
1009 scb->dmamap,
1010 csio->data_ptr,
1011 csio->dxfer_len,
1012 ahd_execute_scb,
1013 scb, /*flags*/0);
1014 if (error == EINPROGRESS) {
1015 /*
1016 * So as to maintain ordering,
1017 * freeze the controller queue
1018 * until our mapping is
1019 * returned.
1020 */
1021 xpt_freeze_simq(sim,
1022 /*count*/1);
1023 scb->io_ctx->ccb_h.status |=
1024 CAM_RELEASE_SIMQ;
1025 }
1026 crit_exit();
1027 } else {
1028 struct bus_dma_segment seg;
1029
1030 /* Pointer to physical buffer */
1031 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE)
1032 panic("ahd_setup_data - Transfer size "
1033 "larger than can device max");
1034
1035 seg.ds_addr =
1036 (bus_addr_t)(vm_offset_t)csio->data_ptr;
1037 seg.ds_len = csio->dxfer_len;
1038 ahd_execute_scb(scb, &seg, 1, 0);
1039 }
1040 } else {
1041 struct bus_dma_segment *segs;
1042
1043 if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
1044 panic("ahd_setup_data - Physical segment "
1045 "pointers unsupported");
1046
1047 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
1048 panic("ahd_setup_data - Virtual segment "
1049 "addresses unsupported");
1050
1051 /* Just use the segments provided */
1052 segs = (struct bus_dma_segment *)csio->data_ptr;
1053 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0);
1054 }
1055 } else {
1056 ahd_execute_scb(scb, NULL, 0, 0);
1057 }
1058 }
1059
1060 static void
1061 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
1062 {
1063 union ccb *abort_ccb;
1064
1065 abort_ccb = ccb->cab.abort_ccb;
1066 switch (abort_ccb->ccb_h.func_code) {
1067 #ifdef AHD_TARGET_MODE
1068 case XPT_ACCEPT_TARGET_IO:
1069 case XPT_IMMED_NOTIFY:
1070 case XPT_CONT_TARGET_IO:
1071 {
1072 struct ahd_tmode_tstate *tstate;
1073 struct ahd_tmode_lstate *lstate;
1074 struct ccb_hdr_slist *list;
1075 cam_status status;
1076
1077 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate,
1078 &lstate, TRUE);
1079
1080 if (status != CAM_REQ_CMP) {
1081 ccb->ccb_h.status = status;
1082 break;
1083 }
1084
1085 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
1086 list = &lstate->accept_tios;
1087 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
1088 list = &lstate->immed_notifies;
1089 else
1090 list = NULL;
1091
1092 if (list != NULL) {
1093 struct ccb_hdr *curelm;
1094 int found;
1095
1096 curelm = SLIST_FIRST(list);
1097 found = 0;
1098 if (curelm == &abort_ccb->ccb_h) {
1099 found = 1;
1100 SLIST_REMOVE_HEAD(list, sim_links.sle);
1101 } else {
1102 while(curelm != NULL) {
1103 struct ccb_hdr *nextelm;
1104
1105 nextelm =
1106 SLIST_NEXT(curelm, sim_links.sle);
1107
1108 if (nextelm == &abort_ccb->ccb_h) {
1109 found = 1;
1110 SLIST_NEXT(curelm,
1111 sim_links.sle) =
1112 SLIST_NEXT(nextelm,
1113 sim_links.sle);
1114 break;
1115 }
1116 curelm = nextelm;
1117 }
1118 }
1119
1120 if (found) {
1121 abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
1122 xpt_done(abort_ccb);
1123 ccb->ccb_h.status = CAM_REQ_CMP;
1124 } else {
1125 xpt_print_path(abort_ccb->ccb_h.path);
1126 kprintf("Not found\n");
1127 ccb->ccb_h.status = CAM_PATH_INVALID;
1128 }
1129 break;
1130 }
1131 /* FALLTHROUGH */
1132 }
1133 #endif
1134 case XPT_SCSI_IO:
1135 /* XXX Fully implement the hard ones */
1136 ccb->ccb_h.status = CAM_UA_ABORT;
1137 break;
1138 default:
1139 ccb->ccb_h.status = CAM_REQ_INVALID;
1140 break;
1141 }
1142 xpt_done(ccb);
1143 }
1144
1145 void
1146 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target,
1147 u_int lun, ac_code code, void *opt_arg)
1148 {
1149 struct ccb_trans_settings cts;
1150 struct cam_path *path;
1151 void *arg;
1152 int error;
1153
1154 arg = NULL;
1155 error = ahd_create_path(ahd, channel, target, lun, &path);
1156
1157 if (error != CAM_REQ_CMP)
1158 return;
1159
1160 switch (code) {
1161 case AC_TRANSFER_NEG:
1162 {
1163 struct ccb_trans_settings_scsi *scsi;
1164
1165 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1166 scsi = &cts.proto_specific.scsi;
1167 cts.ccb_h.path = path;
1168 cts.ccb_h.target_id = target;
1169 cts.ccb_h.target_lun = lun;
1170 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts);
1171 arg = &cts;
1172 scsi->valid &= ~CTS_SCSI_VALID_TQ;
1173 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1174 if (opt_arg == NULL)
1175 break;
1176 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED)
1177 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
1178 scsi->valid |= CTS_SCSI_VALID_TQ;
1179 break;
1180 }
1181 case AC_SENT_BDR:
1182 case AC_BUS_RESET:
1183 break;
1184 default:
1185 panic("ahd_send_async: Unexpected async event");
1186 }
1187 xpt_async(code, path, arg);
1188 xpt_free_path(path);
1189 }
1190
1191 void
1192 ahd_platform_set_tags(struct ahd_softc *ahd,
1193 struct ahd_devinfo *devinfo, int enable)
1194 {
1195 }
1196
1197 int
1198 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
1199 {
1200 ahd->platform_data = kmalloc(sizeof(struct ahd_platform_data), M_DEVBUF,
1201 M_INTWAIT | M_ZERO);
1202 return (0);
1203 }
1204
1205 void
1206 ahd_platform_free(struct ahd_softc *ahd)
1207 {
1208 struct ahd_platform_data *pdata;
1209
1210 pdata = ahd->platform_data;
1211 if (pdata != NULL) {
1212 if (pdata->regs[0] != NULL)
1213 bus_release_resource(ahd->dev_softc,
1214 pdata->regs_res_type[0],
1215 pdata->regs_res_id[0],
1216 pdata->regs[0]);
1217
1218 if (pdata->regs[1] != NULL)
1219 bus_release_resource(ahd->dev_softc,
1220 pdata->regs_res_type[1],
1221 pdata->regs_res_id[1],
1222 pdata->regs[1]);
1223
1224 if (pdata->irq != NULL)
1225 bus_release_resource(ahd->dev_softc,
1226 pdata->irq_res_type,
1227 0, pdata->irq);
1228
1229 if (pdata->sim != NULL) {
1230 xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
1231 xpt_free_path(pdata->path);
1232 xpt_bus_deregister(cam_sim_path(pdata->sim));
1233 cam_sim_free(pdata->sim);
1234 }
1235 if (pdata->eh != NULL)
1236 EVENTHANDLER_DEREGISTER(shutdown_post_sync, pdata->eh);
1237 kfree(ahd->platform_data, M_DEVBUF);
1238 }
1239 }
1240
1241 int
1242 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
1243 {
1244 /* We don't sort softcs under FreeBSD so report equal always */
1245 return (0);
1246 }
1247
1248 int
1249 ahd_detach(device_t dev)
1250 {
1251 struct ahd_softc *ahd;
1252
1253 device_printf(dev, "detaching device\n");
1254 ahd = device_get_softc(dev);
1255 ahd_lock(ahd);
1256 TAILQ_REMOVE(&ahd_tailq, ahd, links);
1257 ahd_intr_enable(ahd, FALSE);
1258 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih);
1259 ahd_unlock(ahd);
1260 ahd_free(ahd);
1261 return (0);
1262 }
1263
1264 #if 0
1265 static void
1266 ahd_dump_targcmd(struct target_cmd *cmd)
1267 {
1268 uint8_t *byte;
1269 uint8_t *last_byte;
1270 int i;
1271
1272 byte = &cmd->initiator_channel;
1273 /* Debugging info for received commands */
1274 last_byte = &cmd[1].initiator_channel;
1275
1276 i = 0;
1277 while (byte < last_byte) {
1278 if (i == 0)
1279 kprintf("\t");
1280 kprintf("%#x", *byte++);
1281 i++;
1282 if (i == 8) {
1283 kprintf("\n");
1284 i = 0;
1285 } else {
1286 kprintf(", ");
1287 }
1288 }
1289 }
1290 #endif
1291
1292 static int
1293 ahd_modevent(module_t mod, int type, void *data)
1294 {
1295 /* XXX Deal with busy status on unload. */
1296 /* XXX Deal with unknown events */
1297 return 0;
1298 }
1299
1300 static moduledata_t ahd_mod = {
1301 "ahd",
1302 ahd_modevent,
1303 NULL
1304 };
1305
1306 /********************************** DDB Hooks *********************************/
1307 #ifdef DDB
1308 static struct ahd_softc *ahd_ddb_softc;
1309 static int ahd_ddb_paused;
1310 static int ahd_ddb_paused_on_entry;
1311 DB_COMMAND(ahd_sunit, ahd_ddb_sunit)
1312 {
1313 struct ahd_softc *list_ahd;
1314
1315 ahd_ddb_softc = NULL;
1316 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) {
1317 if (list_ahd->unit == addr)
1318 ahd_ddb_softc = list_ahd;
1319 }
1320 if (ahd_ddb_softc == NULL)
1321 db_error("No matching softc found!\n");
1322 }
1323
1324 DB_COMMAND(ahd_pause, ahd_ddb_pause)
1325 {
1326 if (ahd_ddb_softc == NULL) {
1327 db_error("Must set unit with ahd_sunit first!\n");
1328 return;
1329 }
1330 if (ahd_ddb_paused == 0) {
1331 ahd_ddb_paused++;
1332 if (ahd_is_paused(ahd_ddb_softc)) {
1333 ahd_ddb_paused_on_entry++;
1334 return;
1335 }
1336 ahd_pause(ahd_ddb_softc);
1337 }
1338 }
1339
1340 DB_COMMAND(ahd_unpause, ahd_ddb_unpause)
1341 {
1342 if (ahd_ddb_softc == NULL) {
1343 db_error("Must set unit with ahd_sunit first!\n");
1344 return;
1345 }
1346 if (ahd_ddb_paused != 0) {
1347 ahd_ddb_paused = 0;
1348 if (ahd_ddb_paused_on_entry)
1349 return;
1350 ahd_unpause(ahd_ddb_softc);
1351 } else if (ahd_ddb_paused_on_entry != 0) {
1352 /* Two unpauses to clear a paused on entry. */
1353 ahd_ddb_paused_on_entry = 0;
1354 ahd_unpause(ahd_ddb_softc);
1355 }
1356 }
1357
1358 DB_COMMAND(ahd_in, ahd_ddb_in)
1359 {
1360 int c;
1361 int size;
1362
1363 if (ahd_ddb_softc == NULL) {
1364 db_error("Must set unit with ahd_sunit first!\n");
1365 return;
1366 }
1367 if (have_addr == 0)
1368 return;
1369
1370 size = 1;
1371 while ((c = *modif++) != '\0') {
1372 switch (c) {
1373 case 'b':
1374 size = 1;
1375 break;
1376 case 'w':
1377 size = 2;
1378 break;
1379 case 'l':
1380 size = 4;
1381 break;
1382 }
1383 }
1384
1385 if (count <= 0)
1386 count = 1;
1387 while (--count >= 0) {
1388 db_printf("%04lx (M)%x: \t", (u_long)addr,
1389 ahd_inb(ahd_ddb_softc, MODE_PTR));
1390 switch (size) {
1391 case 1:
1392 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr));
1393 break;
1394 case 2:
1395 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr));
1396 break;
1397 case 4:
1398 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr));
1399 break;
1400 }
1401 }
1402 }
1403
1404 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL)
1405 {
1406 db_expr_t old_value;
1407 db_expr_t new_value;
1408 int size;
1409
1410 if (ahd_ddb_softc == NULL) {
1411 db_error("Must set unit with ahd_sunit first!\n");
1412 return;
1413 }
1414
1415 switch (modif[0]) {
1416 case '\0':
1417 case 'b':
1418 size = 1;
1419 break;
1420 case 'h':
1421 size = 2;
1422 break;
1423 case 'l':
1424 size = 4;
1425 break;
1426 default:
1427 db_error("Unknown size\n");
1428 return;
1429 }
1430
1431 while (db_expression(&new_value)) {
1432 switch (size) {
1433 default:
1434 case 1:
1435 old_value = ahd_inb(ahd_ddb_softc, addr);
1436 ahd_outb(ahd_ddb_softc, addr, new_value);
1437 break;
1438 case 2:
1439 old_value = ahd_inw(ahd_ddb_softc, addr);
1440 ahd_outw(ahd_ddb_softc, addr, new_value);
1441 break;
1442 case 4:
1443 old_value = ahd_inl(ahd_ddb_softc, addr);
1444 ahd_outl(ahd_ddb_softc, addr, new_value);
1445 break;
1446 }
1447 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx",
1448 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR),
1449 (u_long)old_value, (u_long)new_value);
1450 addr += size;
1451 }
1452 db_skip_to_eol();
1453 }
1454
1455 DB_COMMAND(ahd_dump, ahd_ddb_dump)
1456 {
1457 if (ahd_ddb_softc == NULL) {
1458 db_error("Must set unit with ahd_sunit first!\n");
1459 return;
1460 }
1461 ahd_dump_card_state(ahd_ddb_softc);
1462 }
1463
1464 #endif
1465
1466
1467 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1468 MODULE_DEPEND(ahd, cam, 1, 1, 1);
1469 MODULE_VERSION(ahd, 1);
DragonFly BSD