twa(4): Sync with FreeBSD (twa(4) version 3.80.06.003).
[dragonfly.git] / sys / dev / raid / twa / tw_osl_cam.c
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1/*
2 * Copyright (c) 2004-07 Applied Micro Circuits Corporation.
3 * Copyright (c) 2004-05 Vinod Kashyap.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
4fbf05f9 27 * $FreeBSD: src/sys/dev/twa/tw_osl_cam.c,v 1.15 2010/08/30 19:15:04 delphij Exp $
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28 */
29
30/*
31 * AMCC'S 3ware driver for 9000 series storage controllers.
32 *
33 * Author: Vinod Kashyap
34 * Modifications by: Adam Radford
35 * Modifications by: Manjunath Ranganathaiah
36 */
37
38
39/*
40 * FreeBSD CAM related functions.
41 */
42
43
44#include <dev/raid/twa/tw_osl_includes.h>
45
46#include <bus/cam/cam.h>
47#include <bus/cam/cam_ccb.h>
48#include <bus/cam/cam_sim.h>
49#include <bus/cam/cam_xpt_sim.h>
50#include <bus/cam/cam_debug.h>
51#include <bus/cam/cam_periph.h>
52#include <bus/cam/cam_xpt_periph.h>
53
54#include <bus/cam/scsi/scsi_all.h>
55#include <bus/cam/scsi/scsi_message.h>
56
57static TW_VOID twa_action(struct cam_sim *sim, union ccb *ccb);
58static TW_VOID twa_poll(struct cam_sim *sim);
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59static TW_VOID twa_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
60
61static TW_INT32 tw_osli_execute_scsi(struct tw_osli_req_context *req,
62 union ccb *ccb);
63
64
65
66/*
67 * Function name: tw_osli_cam_attach
68 * Description: Attaches the driver to CAM.
69 *
70 * Input: sc -- ptr to OSL internal ctlr context
71 * Output: None
72 * Return value: 0 -- success
73 * non-zero-- failure
74 */
75TW_INT32
76tw_osli_cam_attach(struct twa_softc *sc)
77{
78 struct cam_devq *devq;
79
80 tw_osli_dbg_dprintf(3, sc, "entered");
81
82 /*
83 * Create the device queue for our SIM.
84 */
4fbf05f9 85 if ((devq = cam_simq_alloc(TW_OSLI_MAX_NUM_IOS)) == NULL) {
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86 tw_osli_printf(sc, "error = %d",
87 TW_CL_SEVERITY_ERROR_STRING,
88 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
89 0x2100,
90 "Failed to create SIM device queue",
91 ENOMEM);
92 return(ENOMEM);
93 }
94
95 /*
96 * Create a SIM entry. Though we can support TW_OSLI_MAX_NUM_REQUESTS
97 * simultaneous requests, we claim to be able to handle only
98 * TW_OSLI_MAX_NUM_IOS (two less), so that we always have a request
99 * packet available to service ioctls and AENs.
100 */
101 tw_osli_dbg_dprintf(3, sc, "Calling cam_sim_alloc");
102 sc->sim = cam_sim_alloc(twa_action, twa_poll, "twa", sc,
103 device_get_unit(sc->bus_dev), sc->sim_lock,
104 TW_OSLI_MAX_NUM_IOS, 1, devq);
105 if (sc->sim == NULL) {
106 tw_osli_printf(sc, "error = %d",
107 TW_CL_SEVERITY_ERROR_STRING,
108 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
109 0x2101,
110 "Failed to create a SIM entry",
111 ENOMEM);
112 return(ENOMEM);
113 }
114
115 /*
116 * Register the bus.
117 */
118 tw_osli_dbg_dprintf(3, sc, "Calling xpt_bus_register");
119 lockmgr(sc->sim_lock, LK_EXCLUSIVE);
120 if (xpt_bus_register(sc->sim, 0) != CAM_SUCCESS) {
121 cam_sim_free(sc->sim);
122 sc->sim = NULL; /* so cam_detach will not try to free it */
123 tw_osli_printf(sc, "error = %d",
124 TW_CL_SEVERITY_ERROR_STRING,
125 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
126 0x2102,
127 "Failed to register the bus",
128 ENXIO);
129 lockmgr(sc->sim_lock, LK_RELEASE);
130 return(ENXIO);
131 }
132
133 tw_osli_dbg_dprintf(3, sc, "Calling xpt_create_path");
134 if (xpt_create_path(&sc->path, NULL,
135 cam_sim_path(sc->sim),
136 CAM_TARGET_WILDCARD,
137 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
138 xpt_bus_deregister(cam_sim_path (sc->sim));
139 /* Passing TRUE to cam_sim_free will free the devq as well. */
140 cam_sim_free(sc->sim);
141 tw_osli_printf(sc, "error = %d",
142 TW_CL_SEVERITY_ERROR_STRING,
143 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
144 0x2103,
145 "Failed to create path",
146 ENXIO);
147 lockmgr(sc->sim_lock, LK_RELEASE);
148 return(ENXIO);
149 }
150 lockmgr(sc->sim_lock, LK_RELEASE);
151
152 tw_osli_dbg_dprintf(3, sc, "exiting");
153 return(0);
154}
155
156
157
158/*
159 * Function name: tw_osli_cam_detach
160 * Description: Detaches the driver from CAM.
161 *
162 * Input: sc -- ptr to OSL internal ctlr context
163 * Output: None
164 * Return value: None
165 */
166TW_VOID
167tw_osli_cam_detach(struct twa_softc *sc)
168{
169 tw_osli_dbg_dprintf(3, sc, "entered");
170
171 lockmgr(sc->sim_lock, LK_EXCLUSIVE);
172
173 if (sc->path)
174 xpt_free_path(sc->path);
175 if (sc->sim) {
176 xpt_bus_deregister(cam_sim_path(sc->sim));
177 /* Passing TRUE to cam_sim_free will free the devq as well. */
178 cam_sim_free(sc->sim);
179 }
180 /* It's ok have 1 hold count while destroying the mutex */
181 lockuninit(sc->sim_lock);
182}
183
184
185
186/*
187 * Function name: tw_osli_execute_scsi
188 * Description: Build a fw cmd, based on a CAM style ccb, and
189 * send it down.
190 *
191 * Input: req -- ptr to OSL internal request context
192 * ccb -- ptr to CAM style ccb
193 * Output: None
194 * Return value: 0 -- success
195 * non-zero-- failure
196 */
197TW_INT32
198tw_osli_execute_scsi(struct tw_osli_req_context *req, union ccb *ccb)
199{
200 struct twa_softc *sc = req->ctlr;
201 struct tw_cl_req_packet *req_pkt;
202 struct tw_cl_scsi_req_packet *scsi_req;
203 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
204 struct ccb_scsiio *csio = &(ccb->csio);
205 TW_INT32 error;
206
207 tw_osli_dbg_dprintf(10, sc, "SCSI I/O request 0x%x",
208 csio->cdb_io.cdb_bytes[0]);
209
210 if (ccb_h->target_id >= TW_CL_MAX_NUM_UNITS) {
211 tw_osli_dbg_dprintf(3, sc, "Invalid target. PTL = %x %x %x",
212 ccb_h->path_id, ccb_h->target_id, ccb_h->target_lun);
213 ccb_h->status |= CAM_TID_INVALID;
214 xpt_done(ccb);
215 return(1);
216 }
217 if (ccb_h->target_lun >= TW_CL_MAX_NUM_LUNS) {
218 tw_osli_dbg_dprintf(3, sc, "Invalid lun. PTL = %x %x %x",
219 ccb_h->path_id, ccb_h->target_id, ccb_h->target_lun);
220 ccb_h->status |= CAM_LUN_INVALID;
221 xpt_done(ccb);
222 return(1);
223 }
224
225 if(ccb_h->flags & CAM_CDB_PHYS) {
226 tw_osli_printf(sc, "",
227 TW_CL_SEVERITY_ERROR_STRING,
228 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
229 0x2105,
230 "Physical CDB address!");
231 ccb_h->status = CAM_REQ_INVALID;
232 xpt_done(ccb);
233 return(1);
234 }
235
236 /*
237 * We are going to work on this request. Mark it as enqueued (though
238 * we don't actually queue it...)
239 */
240 ccb_h->status |= CAM_SIM_QUEUED;
241
242 if((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
243 if(ccb_h->flags & CAM_DIR_IN)
244 req->flags |= TW_OSLI_REQ_FLAGS_DATA_IN;
245 else
246 req->flags |= TW_OSLI_REQ_FLAGS_DATA_OUT;
247 }
248
249 /* Build the CL understood request packet for SCSI cmds. */
250 req_pkt = &req->req_pkt;
251 req_pkt->status = 0;
252 req_pkt->tw_osl_callback = tw_osl_complete_io;
253 scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
254 scsi_req->unit = ccb_h->target_id;
255 scsi_req->lun = ccb_h->target_lun;
256 scsi_req->sense_len = 0;
257 scsi_req->sense_data = (TW_UINT8 *)(&csio->sense_data);
258 scsi_req->scsi_status = 0;
259 if(ccb_h->flags & CAM_CDB_POINTER)
260 scsi_req->cdb = csio->cdb_io.cdb_ptr;
261 else
262 scsi_req->cdb = csio->cdb_io.cdb_bytes;
263 scsi_req->cdb_len = csio->cdb_len;
264
265 if (!(ccb_h->flags & CAM_DATA_PHYS)) {
266 /* Virtual data addresses. Need to convert them... */
267 tw_osli_dbg_dprintf(3, sc,
268 "XPT_SCSI_IO: Single virtual address!");
269 if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
270 if (csio->dxfer_len > TW_CL_MAX_IO_SIZE) {
271 tw_osli_printf(sc, "size = %d",
272 TW_CL_SEVERITY_ERROR_STRING,
273 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
274 0x2106,
275 "I/O size too big",
276 csio->dxfer_len);
277 ccb_h->status = CAM_REQ_TOO_BIG;
4fbf05f9 278 ccb_h->status &= ~CAM_SIM_QUEUED;
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279 xpt_done(ccb);
280 return(1);
281 }
282
283 if ((req->length = csio->dxfer_len)) {
284 req->data = csio->data_ptr;
285 scsi_req->sgl_entries = 1;
286 }
287 } else {
288 tw_osli_printf(sc, "",
289 TW_CL_SEVERITY_ERROR_STRING,
290 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
291 0x2107,
292 "XPT_SCSI_IO: Got SGList");
293 ccb_h->status = CAM_REQ_INVALID;
4fbf05f9 294 ccb_h->status &= ~CAM_SIM_QUEUED;
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295 xpt_done(ccb);
296 return(1);
297 }
298 } else {
299 /* Data addresses are physical. */
300 tw_osli_printf(sc, "",
301 TW_CL_SEVERITY_ERROR_STRING,
302 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
303 0x2108,
304 "XPT_SCSI_IO: Physical data addresses");
305 ccb_h->status = CAM_REQ_INVALID;
306 ccb_h->status &= ~CAM_SIM_QUEUED;
307 xpt_done(ccb);
308 return(1);
309 }
310
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311 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000);
312
313
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314 /*
315 * twa_map_load_data_callback will fill in the SGL,
316 * and submit the I/O.
317 */
318 error = tw_osli_map_request(req);
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319 if ((error) && (req->flags & TW_OSLI_REQ_FLAGS_FAILED)) {
320 req->deadline = 0;
321 ccb_h->status = CAM_REQ_CMP_ERR;
322 ccb_h->status &= ~CAM_SIM_QUEUED;
323 xpt_done(ccb);
324 }
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325 return(error);
326}
327
328
329
330/*
331 * Function name: twa_action
332 * Description: Driver entry point for CAM's use.
333 *
334 * Input: sim -- sim corresponding to the ctlr
335 * ccb -- ptr to CAM request
336 * Output: None
337 * Return value: None
338 */
339TW_VOID
340twa_action(struct cam_sim *sim, union ccb *ccb)
341{
342 struct twa_softc *sc = (struct twa_softc *)cam_sim_softc(sim);
343 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
344
345 switch (ccb_h->func_code) {
346 case XPT_SCSI_IO: /* SCSI I/O */
347 {
348 struct tw_osli_req_context *req;
349
350 req = tw_osli_get_request(sc);
351 if (req == NULL) {
352 tw_osli_dbg_dprintf(2, sc, "Cannot get request pkt.");
353 /*
354 * Freeze the simq to maintain ccb ordering. The next
355 * ccb that gets completed will unfreeze the simq.
356 */
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357 ccb_h->status &= ~CAM_SIM_QUEUED;
358 ccb_h->status |= CAM_REQUEUE_REQ;
359 xpt_done(ccb);
360 break;
361 }
362
363 if ((tw_cl_is_reset_needed(&(req->ctlr->ctlr_handle)))) {
364 ccb_h->status &= ~CAM_SIM_QUEUED;
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365 ccb_h->status |= CAM_REQUEUE_REQ;
366 xpt_done(ccb);
4fbf05f9 367 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
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368 break;
369 }
4fbf05f9 370
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371 req->req_handle.osl_req_ctxt = req;
372 req->req_handle.is_io = TW_CL_TRUE;
373 req->orig_req = ccb;
374 if (tw_osli_execute_scsi(req, ccb))
375 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
376 break;
377 }
378
379 case XPT_ABORT:
380 tw_osli_dbg_dprintf(2, sc, "Abort request.");
381 ccb_h->status = CAM_UA_ABORT;
382 xpt_done(ccb);
383 break;
384
385 case XPT_RESET_BUS:
4fbf05f9 386 tw_cl_create_event(&(sc->ctlr_handle), TW_CL_FALSE,
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387 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
388 0x2108, 0x3, TW_CL_SEVERITY_INFO_STRING,
389 "Received Reset Bus request from CAM",
390 " ");
391
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392 tw_cl_set_reset_needed(&(sc->ctlr_handle));
393 ccb_h->status = CAM_REQ_CMP;
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394 xpt_done(ccb);
395 break;
396
397 case XPT_SET_TRAN_SETTINGS:
398 tw_osli_dbg_dprintf(3, sc, "XPT_SET_TRAN_SETTINGS");
399
400 /*
401 * This command is not supported, since it's very specific
402 * to SCSI, and we are doing ATA.
403 */
404 ccb_h->status = CAM_FUNC_NOTAVAIL;
405 xpt_done(ccb);
406 break;
407
408 case XPT_GET_TRAN_SETTINGS:
409 {
410 struct ccb_trans_settings *cts = &ccb->cts;
411 struct ccb_trans_settings_scsi *scsi =
412 &cts->proto_specific.scsi;
413 struct ccb_trans_settings_spi *spi =
414 &cts->xport_specific.spi;
415
416 cts->protocol = PROTO_SCSI;
417 cts->protocol_version = SCSI_REV_2;
418 cts->transport = XPORT_SPI;
419 cts->transport_version = 2;
420
421 spi->valid = CTS_SPI_VALID_DISC;
422 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
423 scsi->valid = CTS_SCSI_VALID_TQ;
424 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
425 tw_osli_dbg_dprintf(3, sc, "XPT_GET_TRAN_SETTINGS");
426 ccb_h->status = CAM_REQ_CMP;
427 xpt_done(ccb);
428 break;
429 }
430
431 case XPT_CALC_GEOMETRY:
432 tw_osli_dbg_dprintf(3, sc, "XPT_CALC_GEOMETRY");
433 cam_calc_geometry(&ccb->ccg, 1/* extended */);
434 xpt_done(ccb);
435 break;
436
437 case XPT_PATH_INQ: /* Path inquiry -- get twa properties */
438 {
439 struct ccb_pathinq *path_inq = &ccb->cpi;
440
441 tw_osli_dbg_dprintf(3, sc, "XPT_PATH_INQ request");
442
443 path_inq->version_num = 1;
444 path_inq->hba_inquiry = 0;
445 path_inq->target_sprt = 0;
446 path_inq->hba_misc = 0;
447 path_inq->hba_eng_cnt = 0;
448 path_inq->max_target = TW_CL_MAX_NUM_UNITS;
449 path_inq->max_lun = TW_CL_MAX_NUM_LUNS - 1;
450 path_inq->unit_number = cam_sim_unit(sim);
451 path_inq->bus_id = cam_sim_bus(sim);
452 path_inq->initiator_id = TW_CL_MAX_NUM_UNITS;
453 path_inq->base_transfer_speed = 100000;
454 strncpy(path_inq->sim_vid, "FreeBSD", SIM_IDLEN);
455 strncpy(path_inq->hba_vid, "3ware", HBA_IDLEN);
456 strncpy(path_inq->dev_name, cam_sim_name(sim), DEV_IDLEN);
457 path_inq->transport = XPORT_SPI;
458 path_inq->transport_version = 2;
459 path_inq->protocol = PROTO_SCSI;
460 path_inq->protocol_version = SCSI_REV_2;
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461#if 0 /* XXX swildner */
462 path_inq->maxio = TW_CL_MAX_IO_SIZE;
463#endif
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464 ccb_h->status = CAM_REQ_CMP;
465 xpt_done(ccb);
466 break;
467 }
468
469 default:
470 tw_osli_dbg_dprintf(3, sc, "func_code = %x", ccb_h->func_code);
471 ccb_h->status = CAM_REQ_INVALID;
472 xpt_done(ccb);
473 break;
474 }
475}
476
477
478
479/*
480 * Function name: twa_poll
481 * Description: Driver entry point called when interrupts are not
482 * available.
483 *
484 * Input: sim -- sim corresponding to the controller
485 * Output: None
486 * Return value: None
487 */
488TW_VOID
489twa_poll(struct cam_sim *sim)
490{
491 struct twa_softc *sc = (struct twa_softc *)(cam_sim_softc(sim));
492
493 tw_osli_dbg_dprintf(3, sc, "entering; sc = %p", sc);
494 tw_cl_interrupt(&(sc->ctlr_handle));
495 tw_osli_dbg_dprintf(3, sc, "exiting; sc = %p", sc);
496}
497
498
499
500/*
df54c2f9
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501 * Function name: tw_osli_request_bus_scan
502 * Description: Requests CAM for a scan of the bus.
503 *
504 * Input: sc -- ptr to per ctlr structure
505 * Output: None
506 * Return value: 0 -- success
507 * non-zero-- failure
508 */
509TW_INT32
510tw_osli_request_bus_scan(struct twa_softc *sc)
511{
512 union ccb *ccb;
513
514 tw_osli_dbg_dprintf(3, sc, "entering");
515
516 /* If we get here before sc->sim is initialized, return an error. */
517 if (!(sc->sim))
518 return(ENXIO);
519 if ((ccb = xpt_alloc_ccb()) == NULL)
520 return(ENOMEM);
521 lockmgr(sc->sim_lock, LK_EXCLUSIVE);
522 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sc->sim),
523 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
524 xpt_free_ccb(ccb);
525 lockmgr(sc->sim_lock, LK_RELEASE);
526 return(EIO);
527 }
528
529 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
530 ccb->ccb_h.func_code = XPT_SCAN_BUS;
531 ccb->ccb_h.cbfcnp = twa_bus_scan_cb;
532 ccb->crcn.flags = CAM_FLAG_NONE;
533 xpt_action(ccb);
534
535 lockmgr(sc->sim_lock, LK_RELEASE);
536 return(0);
537}
538
539
540
541/*
542 * Function name: twa_bus_scan_cb
543 * Description: Callback from CAM on a bus scan request.
544 *
545 * Input: periph -- we don't use this
546 * ccb -- bus scan request ccb that we sent to CAM
547 * Output: None
548 * Return value: None
549 */
550static TW_VOID
551twa_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
552{
553 tw_osli_dbg_printf(3, "entering");
554
555 if (ccb->ccb_h.status != CAM_REQ_CMP)
556 kprintf("cam_scan_callback: failure status = %x\n",
557 ccb->ccb_h.status);
558 else
559 tw_osli_dbg_printf(3, "success");
560
561 xpt_free_path(ccb->ccb_h.path);
562 kfree(ccb, M_TEMP);
563}
564
565
566
567/*
568 * Function name: tw_osli_disallow_new_requests
569 * Description: Calls the appropriate CAM function, so as to freeze
570 * the flow of new requests from CAM to this controller.
571 *
572 * Input: sc -- ptr to OSL internal ctlr context
573 * req_handle -- ptr to request handle sent by OSL.
574 * Output: None
575 * Return value: None
576 */
577TW_VOID
578tw_osli_disallow_new_requests(struct twa_softc *sc,
579 struct tw_cl_req_handle *req_handle)
580{
581 /* Only freeze/release the simq for IOs */
582 if (req_handle->is_io) {
583 struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
584 union ccb *ccb = (union ccb *)(req->orig_req);
585
586 xpt_freeze_simq(sc->sim, 1);
587 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
588 }
589}
590
591
592
593/*
4fbf05f9
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594 * Function name: tw_osl_timeout
595 * Description: Call to timeout().
df54c2f9 596 *
4fbf05f9 597 * Input: req_handle -- ptr to request handle sent by OSL.
df54c2f9
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598 * Output: None
599 * Return value: None
600 */
601TW_VOID
4fbf05f9
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602tw_osl_timeout(struct tw_cl_req_handle *req_handle)
603{
604 struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
605 union ccb *ccb = (union ccb *)(req->orig_req);
606 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
607
608 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000);
609}
610
611
612
613/*
614 * Function name: tw_osl_untimeout
615 * Description: Inverse of call to timeout().
616 *
617 * Input: req_handle -- ptr to request handle sent by OSL.
618 * Output: None
619 * Return value: None
620 */
621TW_VOID
622tw_osl_untimeout(struct tw_cl_req_handle *req_handle)
df54c2f9 623{
4fbf05f9
SW
624 struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
625
626 req->deadline = 0;
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627}
628
629
630
631/*
632 * Function name: tw_osl_scan_bus
633 * Description: CL calls this function to request for a bus scan.
634 *
635 * Input: ctlr_handle -- ptr to controller handle
636 * Output: None
637 * Return value: None
638 */
639TW_VOID
640tw_osl_scan_bus(struct tw_cl_ctlr_handle *ctlr_handle)
641{
642 struct twa_softc *sc = ctlr_handle->osl_ctlr_ctxt;
643 TW_INT32 error;
644
645 if ((error = tw_osli_request_bus_scan(sc)))
646 tw_osli_printf(sc, "error = %d",
647 TW_CL_SEVERITY_ERROR_STRING,
648 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
649 0x2109,
650 "Bus scan request to CAM failed",
651 error);
652}
653
654
655
656/*
657 * Function name: tw_osl_complete_io
658 * Description: Called to complete CAM scsi requests.
659 *
660 * Input: req_handle -- ptr to request handle
661 * Output: None
662 * Return value: None
663 */
664TW_VOID
665tw_osl_complete_io(struct tw_cl_req_handle *req_handle)
666{
667 struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
668 struct tw_cl_req_packet *req_pkt =
669 (struct tw_cl_req_packet *)(&req->req_pkt);
670 struct tw_cl_scsi_req_packet *scsi_req;
671 struct twa_softc *sc = req->ctlr;
672 union ccb *ccb = (union ccb *)(req->orig_req);
673
674 tw_osli_dbg_dprintf(10, sc, "entering");
675
676 if (req->state != TW_OSLI_REQ_STATE_BUSY)
677 tw_osli_printf(sc, "request = %p, status = %d",
678 TW_CL_SEVERITY_ERROR_STRING,
679 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
680 0x210A,
681 "Unposted command completed!!",
682 req, req->state);
683
684 /*
685 * Remove request from the busy queue. Just mark it complete.
686 * There's no need to move it into the complete queue as we are
687 * going to be done with it right now.
688 */
689 req->state = TW_OSLI_REQ_STATE_COMPLETE;
690 tw_osli_req_q_remove_item(req, TW_OSLI_BUSY_Q);
691
692 tw_osli_unmap_request(req);
693
4fbf05f9 694 req->deadline = 0;
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695 if (req->error_code) {
696 /* This request never got submitted to the firmware. */
697 if (req->error_code == EBUSY) {
698 /*
699 * Cmd queue is full, or the Common Layer is out of
700 * resources. The simq will already have been frozen.
701 * When this ccb gets completed will unfreeze the simq.
702 */
703 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
704 }
705 else if (req->error_code == EFBIG)
706 ccb->ccb_h.status = CAM_REQ_TOO_BIG;
707 else
708 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
709 } else {
710 scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
711 if (req_pkt->status == TW_CL_ERR_REQ_SUCCESS)
712 ccb->ccb_h.status = CAM_REQ_CMP;
713 else {
714 if (req_pkt->status & TW_CL_ERR_REQ_INVALID_TARGET)
715 ccb->ccb_h.status |= CAM_TID_INVALID;
716 else if (req_pkt->status & TW_CL_ERR_REQ_INVALID_LUN)
717 ccb->ccb_h.status |= CAM_LUN_INVALID;
718 else if (req_pkt->status & TW_CL_ERR_REQ_SCSI_ERROR)
719 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
720 else if (req_pkt->status & TW_CL_ERR_REQ_BUS_RESET)
4fbf05f9 721 ccb->ccb_h.status |= (CAM_REQUEUE_REQ | CAM_SCSI_BUS_RESET);
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722 /*
723 * If none of the above errors occurred, simply
724 * mark completion error.
725 */
726 if (ccb->ccb_h.status == 0)
727 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
728
729 if (req_pkt->status & TW_CL_ERR_REQ_AUTO_SENSE_VALID) {
730 ccb->csio.sense_len = scsi_req->sense_len;
731 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
732 }
733 }
734
735 ccb->csio.scsi_status = scsi_req->scsi_status;
736 }
737
738 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
739 lockmgr(sc->sim_lock, LK_EXCLUSIVE);
740 xpt_done(ccb);
741 lockmgr(sc->sim_lock, LK_RELEASE);
742 if (! req->error_code)
743 /* twa_action will free the request otherwise */
744 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
745}