2 * Copyright (c) 2010 LSI Corp.
4 * Author : Manjunath Ranganathaiah <manjunath.ranganathaiah@lsi.com>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #include <dev/tws/tws.h>
31 #include <dev/tws/tws_services.h>
32 #include <dev/tws/tws_hdm.h>
33 #include <dev/tws/tws_user.h>
35 #include <cam/cam_ccb.h>
36 #include <cam/cam_sim.h>
37 #include <cam/cam_xpt_sim.h>
38 #include <cam/cam_debug.h>
39 #include <cam/cam_periph.h>
41 #include <cam/scsi/scsi_all.h>
42 #include <cam/scsi/scsi_message.h>
44 static int tws_cam_depth=(TWS_MAX_REQS - TWS_RESERVED_REQS);
45 static char tws_sev_str[5][8]={"","ERROR","WARNING","INFO","DEBUG"};
47 static void tws_action(struct cam_sim *sim, union ccb *ccb);
48 static void tws_poll(struct cam_sim *sim);
49 static void tws_scsi_complete(struct tws_request *req);
53 void tws_unmap_request(struct tws_softc *sc, struct tws_request *req);
54 int32_t tws_map_request(struct tws_softc *sc, struct tws_request *req);
55 int tws_bus_scan(struct tws_softc *sc);
56 int tws_cam_attach(struct tws_softc *sc);
57 void tws_cam_detach(struct tws_softc *sc);
58 void tws_reset(void *arg);
60 static void tws_reset_cb(void *arg);
61 static void tws_reinit(void *arg);
62 static int32_t tws_execute_scsi(struct tws_softc *sc, union ccb *ccb);
63 static void tws_freeze_simq(struct tws_softc *sc, struct tws_request *req);
64 static void tws_dmamap_data_load_cbfn(void *arg, bus_dma_segment_t *segs,
66 static void tws_fill_sg_list(struct tws_softc *sc, void *sgl_src,
67 void *sgl_dest, u_int16_t num_sgl_entries);
68 static void tws_err_complete(struct tws_softc *sc, u_int64_t mfa);
69 static void tws_scsi_err_complete(struct tws_request *req,
70 struct tws_command_header *hdr);
71 static void tws_passthru_err_complete(struct tws_request *req,
72 struct tws_command_header *hdr);
75 void tws_timeout(void *arg);
76 static void tws_intr_attn_aen(struct tws_softc *sc);
77 static void tws_intr_attn_error(struct tws_softc *sc);
78 static void tws_intr_resp(struct tws_softc *sc);
79 void tws_intr(void *arg);
80 void tws_cmd_complete(struct tws_request *req);
81 void tws_aen_complete(struct tws_request *req);
82 int tws_send_scsi_cmd(struct tws_softc *sc, int cmd);
83 void tws_getset_param_complete(struct tws_request *req);
84 int tws_set_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
85 u_int32_t param_size, void *data);
86 int tws_get_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
87 u_int32_t param_size, void *data);
90 extern struct tws_request *tws_get_request(struct tws_softc *sc,
92 extern void *tws_release_request(struct tws_request *req);
93 extern int tws_submit_command(struct tws_softc *sc, struct tws_request *req);
94 extern boolean tws_get_response(struct tws_softc *sc,
95 u_int16_t *req_id, u_int64_t *mfa);
96 extern void tws_q_insert_tail(struct tws_softc *sc, struct tws_request *req,
98 extern struct tws_request * tws_q_remove_request(struct tws_softc *sc,
99 struct tws_request *req, u_int8_t q_type );
100 extern void tws_send_event(struct tws_softc *sc, u_int8_t event);
102 extern struct tws_sense *
103 tws_find_sense_from_mfa(struct tws_softc *sc, u_int64_t mfa);
105 extern void tws_fetch_aen(void *arg);
106 extern void tws_disable_db_intr(struct tws_softc *sc);
107 extern void tws_enable_db_intr(struct tws_softc *sc);
108 extern void tws_passthru_complete(struct tws_request *req);
109 extern void tws_aen_synctime_with_host(struct tws_softc *sc);
110 extern void tws_circular_aenq_insert(struct tws_softc *sc,
111 struct tws_circular_q *cq, struct tws_event_packet *aen);
112 extern int tws_use_32bit_sgls;
113 extern boolean tws_ctlr_reset(struct tws_softc *sc);
114 extern struct tws_request * tws_q_remove_tail(struct tws_softc *sc,
116 extern void tws_turn_off_interrupts(struct tws_softc *sc);
117 extern void tws_turn_on_interrupts(struct tws_softc *sc);
118 extern int tws_init_connect(struct tws_softc *sc, u_int16_t mc);
119 extern void tws_init_obfl_q(struct tws_softc *sc);
120 extern uint8_t tws_get_state(struct tws_softc *sc);
121 extern void tws_assert_soft_reset(struct tws_softc *sc);
122 extern boolean tws_ctlr_ready(struct tws_softc *sc);
123 extern u_int16_t tws_poll4_response(struct tws_softc *sc, u_int64_t *mfa);
124 extern int tws_setup_intr(struct tws_softc *sc, int irqs);
125 extern int tws_teardown_intr(struct tws_softc *sc);
130 tws_cam_attach(struct tws_softc *sc)
132 struct cam_devq *devq;
134 TWS_TRACE_DEBUG(sc, "entry", 0, sc);
135 /* Create a device queue for sim */
138 * if the user sets cam depth to less than 1
139 * cam may get confused
141 if ( tws_cam_depth < 1 )
143 if ( tws_cam_depth > (tws_queue_depth - TWS_RESERVED_REQS) )
144 tws_cam_depth = tws_queue_depth - TWS_RESERVED_REQS;
146 TWS_TRACE_DEBUG(sc, "depths,ctlr,cam", tws_queue_depth, tws_cam_depth);
148 if ((devq = cam_simq_alloc(tws_cam_depth)) == NULL) {
149 tws_log(sc, CAM_SIMQ_ALLOC);
154 * Create a SIM entry. Though we can support tws_cam_depth
155 * simultaneous requests, we claim to be able to handle only
156 * (tws_cam_depth), so that we always have reserved requests
157 * packet available to service ioctls and internal commands.
159 sc->sim = cam_sim_alloc(tws_action, tws_poll, "tws", sc,
160 device_get_unit(sc->tws_dev),
161 #if (__FreeBSD_version >= 700000)
164 tws_cam_depth, 1, devq);
166 if (sc->sim == NULL) {
168 tws_log(sc, CAM_SIM_ALLOC);
170 /* Register the bus. */
171 mtx_lock(&sc->sim_lock);
172 if (xpt_bus_register(sc->sim,
173 #if (__FreeBSD_version >= 700000)
177 cam_sim_free(sc->sim, TRUE); /* passing true will free the devq */
178 sc->sim = NULL; /* so cam_detach will not try to free it */
179 mtx_unlock(&sc->sim_lock);
180 tws_log(sc, TWS_XPT_BUS_REGISTER);
183 if (xpt_create_path(&sc->path, NULL, cam_sim_path(sc->sim),
185 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
186 xpt_bus_deregister(cam_sim_path(sc->sim));
187 /* Passing TRUE to cam_sim_free will free the devq as well. */
188 cam_sim_free(sc->sim, TRUE);
189 tws_log(sc, TWS_XPT_CREATE_PATH);
190 mtx_unlock(&sc->sim_lock);
193 mtx_unlock(&sc->sim_lock);
199 tws_cam_detach(struct tws_softc *sc)
201 TWS_TRACE_DEBUG(sc, "entry", 0, 0);
202 mtx_lock(&sc->sim_lock);
204 xpt_free_path(sc->path);
206 xpt_bus_deregister(cam_sim_path(sc->sim));
207 cam_sim_free(sc->sim, TRUE);
209 mtx_unlock(&sc->sim_lock);
213 tws_bus_scan(struct tws_softc *sc)
217 TWS_TRACE_DEBUG(sc, "entry", sc, 0);
220 ccb = xpt_alloc_ccb();
221 mtx_lock(&sc->sim_lock);
222 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(sc->sim),
223 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
224 mtx_unlock(&sc->sim_lock);
229 mtx_unlock(&sc->sim_lock);
234 tws_action(struct cam_sim *sim, union ccb *ccb)
236 struct tws_softc *sc = (struct tws_softc *)cam_sim_softc(sim);
239 switch( ccb->ccb_h.func_code ) {
242 if ( tws_execute_scsi(sc, ccb) )
243 TWS_TRACE_DEBUG(sc, "execute scsi failed", 0, 0);
248 TWS_TRACE_DEBUG(sc, "abort i/o", 0, 0);
249 ccb->ccb_h.status = CAM_UA_ABORT;
255 TWS_TRACE_DEBUG(sc, "reset bus", sim, ccb);
258 case XPT_SET_TRAN_SETTINGS:
260 TWS_TRACE_DEBUG(sc, "set tran settings", sim, ccb);
261 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
266 case XPT_GET_TRAN_SETTINGS:
268 TWS_TRACE_DEBUG(sc, "get tran settings", sim, ccb);
270 #if (__FreeBSD_version >= 700000 )
271 ccb->cts.protocol = PROTO_SCSI;
272 ccb->cts.protocol_version = SCSI_REV_2;
273 ccb->cts.transport = XPORT_SPI;
274 ccb->cts.transport_version = 2;
276 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
277 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
278 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
279 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
281 ccb->cts.valid = (CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID);
282 ccb->cts.flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
284 ccb->ccb_h.status = CAM_REQ_CMP;
289 case XPT_CALC_GEOMETRY:
291 TWS_TRACE_DEBUG(sc, "calc geometry(ccb,block-size)", ccb,
292 ccb->ccg.block_size);
293 cam_calc_geometry(&ccb->ccg, 1/* extended */);
300 TWS_TRACE_DEBUG(sc, "path inquiry", sim, ccb);
301 ccb->cpi.version_num = 1;
302 ccb->cpi.hba_inquiry = 0;
303 ccb->cpi.target_sprt = 0;
304 ccb->cpi.hba_misc = 0;
305 ccb->cpi.hba_eng_cnt = 0;
306 ccb->cpi.max_target = TWS_MAX_NUM_UNITS;
307 ccb->cpi.max_lun = TWS_MAX_NUM_LUNS - 1;
308 ccb->cpi.unit_number = cam_sim_unit(sim);
309 ccb->cpi.bus_id = cam_sim_bus(sim);
310 ccb->cpi.initiator_id = TWS_SCSI_INITIATOR_ID;
311 ccb->cpi.base_transfer_speed = 6000000;
312 strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
313 strncpy(ccb->cpi.hba_vid, "3ware", HBA_IDLEN);
314 strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
315 #if (__FreeBSD_version >= 700000 )
316 ccb->cpi.transport = XPORT_SPI;
317 ccb->cpi.transport_version = 2;
318 ccb->cpi.protocol = PROTO_SCSI;
319 ccb->cpi.protocol_version = SCSI_REV_2;
320 ccb->cpi.maxio = TWS_MAX_IO_SIZE;
322 ccb->ccb_h.status = CAM_REQ_CMP;
328 TWS_TRACE_DEBUG(sc, "default", sim, ccb);
329 ccb->ccb_h.status = CAM_REQ_INVALID;
336 tws_scsi_complete(struct tws_request *req)
338 struct tws_softc *sc = req->sc;
340 mtx_lock(&sc->q_lock);
341 tws_q_remove_request(sc, req, TWS_BUSY_Q);
342 mtx_unlock(&sc->q_lock);
344 callout_stop(&req->timeout);
345 tws_unmap_request(req->sc, req);
348 req->ccb_ptr->ccb_h.status = CAM_REQ_CMP;
349 mtx_lock(&sc->sim_lock);
350 xpt_done(req->ccb_ptr);
351 mtx_unlock(&sc->sim_lock);
353 mtx_lock(&sc->q_lock);
354 tws_q_insert_tail(sc, req, TWS_FREE_Q);
355 mtx_unlock(&sc->q_lock);
359 tws_getset_param_complete(struct tws_request *req)
361 struct tws_softc *sc = req->sc;
363 TWS_TRACE_DEBUG(sc, "getset complete", req, req->request_id);
365 callout_stop(&req->timeout);
366 tws_unmap_request(sc, req);
368 free(req->data, M_TWS);
370 req->state = TWS_REQ_STATE_FREE;
374 tws_aen_complete(struct tws_request *req)
376 struct tws_softc *sc = req->sc;
377 struct tws_command_header *sense;
378 struct tws_event_packet event;
379 u_int16_t aen_code=0;
381 TWS_TRACE_DEBUG(sc, "aen complete", 0, req->request_id);
383 callout_stop(&req->timeout);
384 tws_unmap_request(sc, req);
386 sense = (struct tws_command_header *)req->data;
388 TWS_TRACE_DEBUG(sc,"sense code, key",sense->sense_data[0],
389 sense->sense_data[2]);
390 TWS_TRACE_DEBUG(sc,"sense rid, seve",sense->header_desc.request_id,
391 sense->status_block.res__severity);
392 TWS_TRACE_DEBUG(sc,"sense srcnum, error",sense->status_block.srcnum,
393 sense->status_block.error);
394 TWS_TRACE_DEBUG(sc,"sense shdr, ssense",sense->header_desc.size_header,
395 sense->header_desc.size_sense);
397 aen_code = sense->status_block.error;
399 switch ( aen_code ) {
400 case TWS_AEN_SYNC_TIME_WITH_HOST :
401 tws_aen_synctime_with_host(sc);
403 case TWS_AEN_QUEUE_EMPTY :
406 bzero(&event, sizeof(struct tws_event_packet));
407 event.sequence_id = sc->seq_id;
408 event.time_stamp_sec = (u_int32_t)TWS_LOCAL_TIME;
409 event.aen_code = sense->status_block.error;
410 event.severity = sense->status_block.res__severity & 0x7;
411 event.event_src = TWS_SRC_CTRL_EVENT;
412 strcpy(event.severity_str, tws_sev_str[event.severity]);
413 event.retrieved = TWS_AEN_NOT_RETRIEVED;
415 bcopy(sense->err_specific_desc, event.parameter_data,
416 TWS_ERROR_SPECIFIC_DESC_LEN);
417 event.parameter_data[TWS_ERROR_SPECIFIC_DESC_LEN - 1] = '\0';
418 event.parameter_len = (u_int8_t)strlen(event.parameter_data)+1;
420 if ( event.parameter_len < TWS_ERROR_SPECIFIC_DESC_LEN ) {
421 event.parameter_len += ((u_int8_t)strlen(event.parameter_data +
422 event.parameter_len) + 1);
425 device_printf(sc->tws_dev, "%s: (0x%02X: 0x%04X): %s: %s\n",
429 event.parameter_data +
430 (strlen(event.parameter_data) + 1),
431 event.parameter_data);
433 mtx_lock(&sc->gen_lock);
434 tws_circular_aenq_insert(sc, &sc->aen_q, &event);
436 mtx_unlock(&sc->gen_lock);
441 free(req->data, M_TWS);
443 req->state = TWS_REQ_STATE_FREE;
445 if ( aen_code != TWS_AEN_QUEUE_EMPTY ) {
446 /* timeout(tws_fetch_aen, sc, 1);*/
447 sc->stats.num_aens++;
448 tws_fetch_aen((void *)sc);
453 tws_cmd_complete(struct tws_request *req)
455 struct tws_softc *sc = req->sc;
457 callout_stop(&req->timeout);
458 tws_unmap_request(sc, req);
462 tws_err_complete(struct tws_softc *sc, u_int64_t mfa)
464 struct tws_command_header *hdr;
465 struct tws_sense *sen;
466 struct tws_request *req;
468 u_int32_t reg, status;
471 TWS_TRACE_DEBUG(sc, "null mfa", 0, mfa);
474 /* lookup the sense */
475 sen = tws_find_sense_from_mfa(sc, mfa);
477 TWS_TRACE_DEBUG(sc, "found null req", 0, mfa);
481 TWS_TRACE_DEBUG(sc, "sen, hdr", sen, hdr);
482 req_id = hdr->header_desc.request_id;
483 req = &sc->reqs[req_id];
484 TWS_TRACE_DEBUG(sc, "req, id", req, req_id);
485 if ( req->error_code != TWS_REQ_RET_SUBMIT_SUCCESS )
486 TWS_TRACE_DEBUG(sc, "submit failure?", 0, req->error_code);
490 case TWS_REQ_TYPE_PASSTHRU :
491 tws_passthru_err_complete(req, hdr);
493 case TWS_REQ_TYPE_GETSET_PARAM :
494 tws_getset_param_complete(req);
496 case TWS_REQ_TYPE_SCSI_IO :
497 tws_scsi_err_complete(req, hdr);
502 mtx_lock(&sc->io_lock);
503 hdr->header_desc.size_header = 128;
504 reg = (u_int32_t)( mfa>>32);
505 tws_write_reg(sc, TWS_I2O0_HOBQPH, reg, 4);
506 reg = (u_int32_t)(mfa);
507 tws_write_reg(sc, TWS_I2O0_HOBQPL, reg, 4);
509 status = tws_read_reg(sc, TWS_I2O0_STATUS, 4);
510 if ( status & TWS_BIT13 ) {
511 device_printf(sc->tws_dev, "OBFL Overrun\n");
512 sc->obfl_q_overrun = true;
514 mtx_unlock(&sc->io_lock);
518 tws_scsi_err_complete(struct tws_request *req, struct tws_command_header *hdr)
520 u_int8_t *sense_data;
521 struct tws_softc *sc = req->sc;
522 union ccb *ccb = req->ccb_ptr;
524 TWS_TRACE_DEBUG(sc, "sbe, cmd_status", hdr->status_block.error,
525 req->cmd_pkt->cmd.pkt_a.status);
526 if ( hdr->status_block.error == TWS_ERROR_LOGICAL_UNIT_NOT_SUPPORTED ||
527 hdr->status_block.error == TWS_ERROR_UNIT_OFFLINE ) {
529 if ( ccb->ccb_h.target_lun ) {
530 TWS_TRACE_DEBUG(sc, "invalid lun error",0,0);
531 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
533 TWS_TRACE_DEBUG(sc, "invalid target error",0,0);
534 ccb->ccb_h.status |= CAM_SEL_TIMEOUT;
538 TWS_TRACE_DEBUG(sc, "scsi status error",0,0);
539 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
540 if (((ccb->csio.cdb_io.cdb_bytes[0] == 0x1A) &&
541 (hdr->status_block.error == TWS_ERROR_NOT_SUPPORTED))) {
542 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
543 TWS_TRACE_DEBUG(sc, "page mode not supported",0,0);
547 /* if there were no error simply mark complete error */
548 if (ccb->ccb_h.status == 0)
549 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
551 sense_data = (u_int8_t *)&ccb->csio.sense_data;
553 memcpy(sense_data, hdr->sense_data, TWS_SENSE_DATA_LENGTH );
554 ccb->csio.sense_len = TWS_SENSE_DATA_LENGTH;
555 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
557 ccb->csio.scsi_status = req->cmd_pkt->cmd.pkt_a.status;
559 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
560 mtx_lock(&sc->sim_lock);
562 mtx_unlock(&sc->sim_lock);
564 callout_stop(&req->timeout);
565 tws_unmap_request(req->sc, req);
566 mtx_lock(&sc->q_lock);
567 tws_q_remove_request(sc, req, TWS_BUSY_Q);
568 tws_q_insert_tail(sc, req, TWS_FREE_Q);
569 mtx_unlock(&sc->q_lock);
573 tws_passthru_err_complete(struct tws_request *req,
574 struct tws_command_header *hdr)
576 TWS_TRACE_DEBUG(req->sc, "entry", hdr, req->request_id);
577 req->error_code = hdr->status_block.error;
578 memcpy(&(req->cmd_pkt->hdr), hdr, sizeof(struct tws_command_header));
579 tws_passthru_complete(req);
583 tws_drain_busy_queue(struct tws_softc *sc)
585 struct tws_request *req;
587 TWS_TRACE_DEBUG(sc, "entry", 0, 0);
589 mtx_lock(&sc->q_lock);
590 req = tws_q_remove_tail(sc, TWS_BUSY_Q);
591 mtx_unlock(&sc->q_lock);
593 TWS_TRACE_DEBUG(sc, "moved to TWS_COMPLETE_Q", 0, req->request_id);
594 callout_stop(&req->timeout);
596 req->error_code = TWS_REQ_RET_RESET;
597 ccb = (union ccb *)(req->ccb_ptr);
599 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
600 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
601 ccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
603 tws_unmap_request(req->sc, req);
605 mtx_lock(&sc->sim_lock);
606 xpt_done(req->ccb_ptr);
607 mtx_unlock(&sc->sim_lock);
609 mtx_lock(&sc->q_lock);
610 tws_q_insert_tail(sc, req, TWS_FREE_Q);
611 req = tws_q_remove_tail(sc, TWS_BUSY_Q);
612 mtx_unlock(&sc->q_lock);
618 tws_drain_reserved_reqs(struct tws_softc *sc)
620 struct tws_request *r;
622 r = &sc->reqs[TWS_REQ_TYPE_AEN_FETCH];
623 if ( r->state != TWS_REQ_STATE_FREE ) {
624 TWS_TRACE_DEBUG(sc, "reset aen req", 0, 0);
625 callout_stop(&r->timeout);
626 tws_unmap_request(sc, r);
627 free(r->data, M_TWS);
628 r->state = TWS_REQ_STATE_FREE;
629 r->error_code = TWS_REQ_RET_RESET;
632 r = &sc->reqs[TWS_REQ_TYPE_PASSTHRU];
633 if ( r->state == TWS_REQ_STATE_BUSY ) {
634 TWS_TRACE_DEBUG(sc, "reset passthru req", 0, 0);
635 r->error_code = TWS_REQ_RET_RESET;
638 r = &sc->reqs[TWS_REQ_TYPE_GETSET_PARAM];
639 if ( r->state != TWS_REQ_STATE_FREE ) {
640 TWS_TRACE_DEBUG(sc, "reset setparam req", 0, 0);
641 callout_stop(&r->timeout);
642 tws_unmap_request(sc, r);
643 free(r->data, M_TWS);
644 r->state = TWS_REQ_STATE_FREE;
645 r->error_code = TWS_REQ_RET_RESET;
650 tws_drain_response_queue(struct tws_softc *sc)
654 while ( tws_get_response(sc, &req_id, &mfa) );
659 tws_execute_scsi(struct tws_softc *sc, union ccb *ccb)
661 struct tws_command_packet *cmd_pkt;
662 struct tws_request *req;
663 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
664 struct ccb_scsiio *csio = &(ccb->csio);
668 mtx_assert(&sc->sim_lock, MA_OWNED);
669 if (ccb_h->target_id >= TWS_MAX_NUM_UNITS) {
670 TWS_TRACE_DEBUG(sc, "traget id too big", ccb_h->target_id, ccb_h->target_lun);
671 ccb_h->status |= CAM_TID_INVALID;
675 if (ccb_h->target_lun >= TWS_MAX_NUM_LUNS) {
676 TWS_TRACE_DEBUG(sc, "target lun 2 big", ccb_h->target_id, ccb_h->target_lun);
677 ccb_h->status |= CAM_LUN_INVALID;
682 if(ccb_h->flags & CAM_CDB_PHYS) {
683 TWS_TRACE_DEBUG(sc, "cdb phy", ccb_h->target_id, ccb_h->target_lun);
684 ccb_h->status = CAM_REQ_INVALID;
690 * We are going to work on this request. Mark it as enqueued (though
691 * we don't actually queue it...)
693 ccb_h->status |= CAM_SIM_QUEUED;
695 req = tws_get_request(sc, TWS_REQ_TYPE_SCSI_IO);
697 TWS_TRACE_DEBUG(sc, "no reqs", ccb_h->target_id, ccb_h->target_lun);
698 ccb_h->status |= CAM_REQUEUE_REQ;
703 if((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
704 if(ccb_h->flags & CAM_DIR_IN)
705 req->flags |= TWS_DIR_IN;
706 if(ccb_h->flags & CAM_DIR_OUT)
707 req->flags |= TWS_DIR_OUT;
709 req->flags = TWS_DIR_NONE; /* no data */
712 req->type = TWS_REQ_TYPE_SCSI_IO;
713 req->cb = tws_scsi_complete;
715 cmd_pkt = req->cmd_pkt;
716 /* cmd_pkt->hdr.header_desc.size_header = 128; */
717 cmd_pkt->cmd.pkt_a.res__opcode = TWS_FW_CMD_EXECUTE_SCSI;
718 cmd_pkt->cmd.pkt_a.unit = ccb_h->target_id;
719 cmd_pkt->cmd.pkt_a.status = 0;
720 cmd_pkt->cmd.pkt_a.sgl_offset = 16;
723 lun = ccb_h->target_lun & 0XF;
725 cmd_pkt->cmd.pkt_a.lun_l4__req_id = lun | req->request_id;
727 lun = ccb_h->target_lun & 0XF0;
729 cmd_pkt->cmd.pkt_a.lun_h4__sgl_entries = lun;
732 if ( csio->cdb_len > 16 )
733 TWS_TRACE(sc, "cdb len too big", ccb_h->target_id, csio->cdb_len);
736 if(ccb_h->flags & CAM_CDB_POINTER)
737 bcopy(csio->cdb_io.cdb_ptr, cmd_pkt->cmd.pkt_a.cdb, csio->cdb_len);
739 bcopy(csio->cdb_io.cdb_bytes, cmd_pkt->cmd.pkt_a.cdb, csio->cdb_len);
742 req->flags |= TWS_DATA_CCB;
746 * tws_map_load_data_callback will fill in the SGL,
747 * and submit the I/O.
749 sc->stats.scsi_ios++;
750 callout_reset_sbt(&req->timeout, SBT_1MS * ccb->ccb_h.timeout, 0,
751 tws_timeout, req, 0);
752 error = tws_map_request(sc, req);
758 tws_send_scsi_cmd(struct tws_softc *sc, int cmd)
760 struct tws_request *req;
761 struct tws_command_packet *cmd_pkt;
764 TWS_TRACE_DEBUG(sc, "entry",sc, cmd);
765 req = tws_get_request(sc, TWS_REQ_TYPE_AEN_FETCH);
770 req->cb = tws_aen_complete;
772 cmd_pkt = req->cmd_pkt;
773 cmd_pkt->cmd.pkt_a.res__opcode = TWS_FW_CMD_EXECUTE_SCSI;
774 cmd_pkt->cmd.pkt_a.status = 0;
775 cmd_pkt->cmd.pkt_a.unit = 0;
776 cmd_pkt->cmd.pkt_a.sgl_offset = 16;
777 cmd_pkt->cmd.pkt_a.lun_l4__req_id = req->request_id;
779 cmd_pkt->cmd.pkt_a.cdb[0] = (u_int8_t)cmd;
780 cmd_pkt->cmd.pkt_a.cdb[4] = 128;
782 req->length = TWS_SECTOR_SIZE;
783 req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
784 if ( req->data == NULL )
786 bzero(req->data, TWS_SECTOR_SIZE);
787 req->flags = TWS_DIR_IN;
789 callout_reset(&req->timeout, (TWS_IO_TIMEOUT * hz), tws_timeout, req);
790 error = tws_map_request(sc, req);
796 tws_set_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
797 u_int32_t param_size, void *data)
799 struct tws_request *req;
800 struct tws_command_packet *cmd_pkt;
801 union tws_command_giga *cmd;
802 struct tws_getset_param *param;
805 req = tws_get_request(sc, TWS_REQ_TYPE_GETSET_PARAM);
807 TWS_TRACE_DEBUG(sc, "null req", 0, 0);
811 req->length = TWS_SECTOR_SIZE;
812 req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
813 if ( req->data == NULL )
815 bzero(req->data, TWS_SECTOR_SIZE);
816 param = (struct tws_getset_param *)req->data;
818 req->cb = tws_getset_param_complete;
819 req->flags = TWS_DIR_OUT;
820 cmd_pkt = req->cmd_pkt;
822 cmd = &cmd_pkt->cmd.pkt_g;
823 cmd->param.sgl_off__opcode =
824 BUILD_SGL_OFF__OPCODE(2, TWS_FW_CMD_SET_PARAM);
825 cmd->param.request_id = (u_int8_t)req->request_id;
826 cmd->param.host_id__unit = 0;
827 cmd->param.param_count = 1;
828 cmd->param.size = 2; /* map routine will add sgls */
830 /* Specify which parameter we want to set. */
831 param->table_id = (table_id | TWS_9K_PARAM_DESCRIPTOR);
832 param->parameter_id = (u_int8_t)(param_id);
833 param->parameter_size_bytes = (u_int16_t)param_size;
834 memcpy(param->data, data, param_size);
836 callout_reset(&req->timeout, (TWS_IOCTL_TIMEOUT * hz), tws_timeout, req);
837 error = tws_map_request(sc, req);
843 tws_get_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
844 u_int32_t param_size, void *data)
846 struct tws_request *req;
847 struct tws_command_packet *cmd_pkt;
848 union tws_command_giga *cmd;
849 struct tws_getset_param *param;
855 req = tws_get_request(sc, TWS_REQ_TYPE_GETSET_PARAM);
857 TWS_TRACE_DEBUG(sc, "null req", 0, 0);
861 req->length = TWS_SECTOR_SIZE;
862 req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
863 if ( req->data == NULL )
865 bzero(req->data, TWS_SECTOR_SIZE);
866 param = (struct tws_getset_param *)req->data;
869 req->flags = TWS_DIR_IN;
870 cmd_pkt = req->cmd_pkt;
872 cmd = &cmd_pkt->cmd.pkt_g;
873 cmd->param.sgl_off__opcode =
874 BUILD_SGL_OFF__OPCODE(2, TWS_FW_CMD_GET_PARAM);
875 cmd->param.request_id = (u_int8_t)req->request_id;
876 cmd->param.host_id__unit = 0;
877 cmd->param.param_count = 1;
878 cmd->param.size = 2; /* map routine will add sgls */
880 /* Specify which parameter we want to set. */
881 param->table_id = (table_id | TWS_9K_PARAM_DESCRIPTOR);
882 param->parameter_id = (u_int8_t)(param_id);
883 param->parameter_size_bytes = (u_int16_t)param_size;
885 error = tws_map_request(sc, req);
887 reqid = tws_poll4_response(sc, &mfa);
888 tws_unmap_request(sc, req);
890 if ( reqid == TWS_REQ_TYPE_GETSET_PARAM ) {
891 memcpy(data, param->data, param_size);
897 free(req->data, M_TWS);
898 req->state = TWS_REQ_STATE_FREE;
904 tws_unmap_request(struct tws_softc *sc, struct tws_request *req)
906 if (req->data != NULL) {
907 if ( req->flags & TWS_DIR_IN )
908 bus_dmamap_sync(sc->data_tag, req->dma_map,
909 BUS_DMASYNC_POSTREAD);
910 if ( req->flags & TWS_DIR_OUT )
911 bus_dmamap_sync(sc->data_tag, req->dma_map,
912 BUS_DMASYNC_POSTWRITE);
913 mtx_lock(&sc->io_lock);
914 bus_dmamap_unload(sc->data_tag, req->dma_map);
915 mtx_unlock(&sc->io_lock);
920 tws_map_request(struct tws_softc *sc, struct tws_request *req)
925 /* If the command involves data, map that too. */
926 if (req->data != NULL) {
927 int my_flags = ((req->type == TWS_REQ_TYPE_SCSI_IO) ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT);
930 * Map the data buffer into bus space and build the SG list.
932 mtx_lock(&sc->io_lock);
933 if (req->flags & TWS_DATA_CCB)
934 error = bus_dmamap_load_ccb(sc->data_tag, req->dma_map,
936 tws_dmamap_data_load_cbfn, req,
939 error = bus_dmamap_load(sc->data_tag, req->dma_map,
940 req->data, req->length,
941 tws_dmamap_data_load_cbfn, req,
943 mtx_unlock(&sc->io_lock);
945 if (error == EINPROGRESS) {
946 TWS_TRACE(sc, "in progress", 0, error);
947 tws_freeze_simq(sc, req);
948 error = 0; // EINPROGRESS is not a fatal error.
950 } else { /* no data involved */
951 error = tws_submit_command(sc, req);
958 tws_dmamap_data_load_cbfn(void *arg, bus_dma_segment_t *segs,
961 struct tws_request *req = (struct tws_request *)arg;
962 struct tws_softc *sc = req->sc;
963 u_int16_t sgls = nseg;
965 struct tws_cmd_generic *gcmd;
969 TWS_TRACE(sc, "SOMETHING BAD HAPPENED! error = %d\n", error, 0);
972 if ( error == EFBIG ) {
973 TWS_TRACE(sc, "not enough data segs", 0, nseg);
974 req->error_code = error;
975 req->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
979 if ( req->flags & TWS_DIR_IN )
980 bus_dmamap_sync(req->sc->data_tag, req->dma_map,
981 BUS_DMASYNC_PREREAD);
982 if ( req->flags & TWS_DIR_OUT )
983 bus_dmamap_sync(req->sc->data_tag, req->dma_map,
984 BUS_DMASYNC_PREWRITE);
986 if ( (req->type == TWS_REQ_TYPE_PASSTHRU &&
987 GET_OPCODE(req->cmd_pkt->cmd.pkt_a.res__opcode) !=
988 TWS_FW_CMD_EXECUTE_SCSI) ||
989 req->type == TWS_REQ_TYPE_GETSET_PARAM) {
990 gcmd = &req->cmd_pkt->cmd.pkt_g.generic;
991 sgl_ptr = (u_int32_t *)(gcmd) + gcmd->size;
993 ((req->sc->is64bit && !tws_use_32bit_sgls) ? 4 : 2 );
994 tws_fill_sg_list(req->sc, (void *)segs, sgl_ptr, sgls);
997 tws_fill_sg_list(req->sc, (void *)segs,
998 (void *)&(req->cmd_pkt->cmd.pkt_a.sg_list), sgls);
999 req->cmd_pkt->cmd.pkt_a.lun_h4__sgl_entries |= sgls ;
1004 req->error_code = tws_submit_command(req->sc, req);
1010 tws_fill_sg_list(struct tws_softc *sc, void *sgl_src, void *sgl_dest,
1011 u_int16_t num_sgl_entries)
1015 if ( sc->is64bit ) {
1016 struct tws_sg_desc64 *sgl_s = (struct tws_sg_desc64 *)sgl_src;
1018 if ( !tws_use_32bit_sgls ) {
1019 struct tws_sg_desc64 *sgl_d = (struct tws_sg_desc64 *)sgl_dest;
1020 if ( num_sgl_entries > TWS_MAX_64BIT_SG_ELEMENTS )
1021 TWS_TRACE(sc, "64bit sg overflow", num_sgl_entries, 0);
1022 for (i = 0; i < num_sgl_entries; i++) {
1023 sgl_d[i].address = sgl_s->address;
1024 sgl_d[i].length = sgl_s->length;
1026 sgl_d[i].reserved = 0;
1027 sgl_s = (struct tws_sg_desc64 *) (((u_int8_t *)sgl_s) +
1028 sizeof(bus_dma_segment_t));
1031 struct tws_sg_desc32 *sgl_d = (struct tws_sg_desc32 *)sgl_dest;
1032 if ( num_sgl_entries > TWS_MAX_32BIT_SG_ELEMENTS )
1033 TWS_TRACE(sc, "32bit sg overflow", num_sgl_entries, 0);
1034 for (i = 0; i < num_sgl_entries; i++) {
1035 sgl_d[i].address = sgl_s->address;
1036 sgl_d[i].length = sgl_s->length;
1038 sgl_s = (struct tws_sg_desc64 *) (((u_int8_t *)sgl_s) +
1039 sizeof(bus_dma_segment_t));
1043 struct tws_sg_desc32 *sgl_s = (struct tws_sg_desc32 *)sgl_src;
1044 struct tws_sg_desc32 *sgl_d = (struct tws_sg_desc32 *)sgl_dest;
1046 if ( num_sgl_entries > TWS_MAX_32BIT_SG_ELEMENTS )
1047 TWS_TRACE(sc, "32bit sg overflow", num_sgl_entries, 0);
1050 for (i = 0; i < num_sgl_entries; i++) {
1051 sgl_d[i].address = sgl_s[i].address;
1052 sgl_d[i].length = sgl_s[i].length;
1062 struct tws_softc *sc = (struct tws_softc *)arg;
1063 u_int32_t histat=0, db=0;
1066 device_printf(sc->tws_dev, "null softc!!!\n");
1070 if ( tws_get_state(sc) == TWS_RESET ) {
1074 if ( tws_get_state(sc) != TWS_ONLINE ) {
1078 sc->stats.num_intrs++;
1079 histat = tws_read_reg(sc, TWS_I2O0_HISTAT, 4);
1080 if ( histat & TWS_BIT2 ) {
1081 TWS_TRACE_DEBUG(sc, "door bell :)", histat, TWS_I2O0_HISTAT);
1082 db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
1083 if ( db & TWS_BIT21 ) {
1084 tws_intr_attn_error(sc);
1087 if ( db & TWS_BIT18 ) {
1088 tws_intr_attn_aen(sc);
1092 if ( histat & TWS_BIT3 ) {
1098 tws_intr_attn_aen(struct tws_softc *sc)
1102 /* maskoff db intrs until all the aens are fetched */
1103 /* tws_disable_db_intr(sc); */
1104 tws_fetch_aen((void *)sc);
1105 tws_write_reg(sc, TWS_I2O0_HOBDBC, TWS_BIT18, 4);
1106 db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
1111 tws_intr_attn_error(struct tws_softc *sc)
1115 TWS_TRACE(sc, "attn error", 0, 0);
1116 tws_write_reg(sc, TWS_I2O0_HOBDBC, ~0, 4);
1117 db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
1118 device_printf(sc->tws_dev, "Micro controller error.\n");
1123 tws_intr_resp(struct tws_softc *sc)
1128 while ( tws_get_response(sc, &req_id, &mfa) ) {
1129 sc->stats.reqs_out++;
1130 if ( req_id == TWS_INVALID_REQID ) {
1131 TWS_TRACE_DEBUG(sc, "invalid req_id", mfa, req_id);
1132 sc->stats.reqs_errored++;
1133 tws_err_complete(sc, mfa);
1136 sc->reqs[req_id].cb(&sc->reqs[req_id]);
1143 tws_poll(struct cam_sim *sim)
1145 struct tws_softc *sc = (struct tws_softc *)cam_sim_softc(sim);
1146 TWS_TRACE_DEBUG(sc, "entry", 0, 0);
1147 tws_intr((void *) sc);
1151 tws_timeout(void *arg)
1153 struct tws_request *req = (struct tws_request *)arg;
1154 struct tws_softc *sc = req->sc;
1157 if ( req->error_code == TWS_REQ_RET_RESET ) {
1161 mtx_lock(&sc->gen_lock);
1162 if ( req->error_code == TWS_REQ_RET_RESET ) {
1163 mtx_unlock(&sc->gen_lock);
1167 if ( tws_get_state(sc) == TWS_RESET ) {
1168 mtx_unlock(&sc->gen_lock);
1172 xpt_freeze_simq(sc->sim, 1);
1174 tws_send_event(sc, TWS_RESET_START);
1176 if (req->type == TWS_REQ_TYPE_SCSI_IO) {
1177 device_printf(sc->tws_dev, "I/O Request timed out... Resetting controller\n");
1178 } else if (req->type == TWS_REQ_TYPE_PASSTHRU) {
1179 device_printf(sc->tws_dev, "IOCTL Request timed out... Resetting controller\n");
1181 device_printf(sc->tws_dev, "Internal Request timed out... Resetting controller\n");
1184 tws_assert_soft_reset(sc);
1185 tws_turn_off_interrupts(sc);
1186 tws_reset_cb( (void*) sc );
1187 tws_reinit( (void*) sc );
1189 // device_printf(sc->tws_dev, "Controller Reset complete!\n");
1190 tws_send_event(sc, TWS_RESET_COMPLETE);
1191 mtx_unlock(&sc->gen_lock);
1193 xpt_release_simq(sc->sim, 1);
1197 tws_reset(void *arg)
1199 struct tws_softc *sc = (struct tws_softc *)arg;
1201 mtx_lock(&sc->gen_lock);
1202 if ( tws_get_state(sc) == TWS_RESET ) {
1203 mtx_unlock(&sc->gen_lock);
1207 xpt_freeze_simq(sc->sim, 1);
1209 tws_send_event(sc, TWS_RESET_START);
1211 device_printf(sc->tws_dev, "Resetting controller\n");
1213 tws_assert_soft_reset(sc);
1214 tws_turn_off_interrupts(sc);
1215 tws_reset_cb( (void*) sc );
1216 tws_reinit( (void*) sc );
1218 // device_printf(sc->tws_dev, "Controller Reset complete!\n");
1219 tws_send_event(sc, TWS_RESET_COMPLETE);
1220 mtx_unlock(&sc->gen_lock);
1222 xpt_release_simq(sc->sim, 1);
1226 tws_reset_cb(void *arg)
1228 struct tws_softc *sc = (struct tws_softc *)arg;
1233 if ( tws_get_state(sc) != TWS_RESET ) {
1237 // device_printf(sc->tws_dev, "Draining Busy Queue\n");
1238 tws_drain_busy_queue(sc);
1239 // device_printf(sc->tws_dev, "Draining Reserved Reqs\n");
1240 tws_drain_reserved_reqs(sc);
1241 // device_printf(sc->tws_dev, "Draining Response Queue\n");
1242 tws_drain_response_queue(sc);
1244 // device_printf(sc->tws_dev, "Looking for controller ready flag...\n");
1245 endt = TWS_LOCAL_TIME + TWS_POLL_TIMEOUT;
1246 while ((TWS_LOCAL_TIME <= endt) && (!found)) {
1247 reg = tws_read_reg(sc, TWS_I2O0_SCRPD3, 4);
1248 if ( reg & TWS_BIT13 ) {
1250 // device_printf(sc->tws_dev, " ... Got it!\n");
1254 device_printf(sc->tws_dev, " ... Controller ready flag NOT found!\n");
1258 tws_reinit(void *arg)
1260 struct tws_softc *sc = (struct tws_softc *)arg;
1266 // device_printf(sc->tws_dev, "Waiting for Controller Ready\n");
1267 while ( !done && try ) {
1268 if ( tws_ctlr_ready(sc) ) {
1273 if ( timeout_val >= TWS_RESET_TIMEOUT ) {
1276 tws_assert_soft_reset(sc);
1279 mtx_sleep(sc, &sc->gen_lock, 0, "tws_reinit", 5*hz);
1284 device_printf(sc->tws_dev, "FAILED to get Controller Ready!\n");
1288 sc->obfl_q_overrun = false;
1289 // device_printf(sc->tws_dev, "Sending initConnect\n");
1290 if ( tws_init_connect(sc, tws_queue_depth) ) {
1291 TWS_TRACE_DEBUG(sc, "initConnect failed", 0, sc->is64bit);
1293 tws_init_obfl_q(sc);
1295 tws_turn_on_interrupts(sc);
1302 tws_freeze_simq(struct tws_softc *sc, struct tws_request *req)
1304 /* Only for IO commands */
1305 if (req->type == TWS_REQ_TYPE_SCSI_IO) {
1306 union ccb *ccb = (union ccb *)(req->ccb_ptr);
1308 xpt_freeze_simq(sc->sim, 1);
1309 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1310 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1315 TUNABLE_INT("hw.tws.cam_depth", &tws_cam_depth);