2 * Generic driver for the BusLogic MultiMaster SCSI host adapters
3 * Product specific probe and attach routines can be found in:
4 * sys/dev/buslogic/bt_isa.c BT-54X, BT-445 cards
5 * sys/dev/buslogic/bt_mca.c BT-64X, SDC3211B, SDC3211F
6 * sys/dev/buslogic/bt_pci.c BT-946, BT-948, BT-956, BT-958 cards
8 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
10 * Copyright (c) 1998, 1999 Justin T. Gibbs.
11 * All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions, and the following disclaimer,
18 * without modification, immediately at the beginning of the file.
19 * 2. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
26 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 * Special thanks to Leonard N. Zubkoff for writing such a complete and
40 * well documented Mylex/BusLogic MultiMaster driver for Linux. Support
41 * in this driver for the wide range of MultiMaster controllers and
42 * firmware revisions, with their otherwise undocumented quirks, would not
43 * have been possible without his efforts.
46 #include <sys/param.h>
48 #include <sys/systm.h>
49 #include <sys/malloc.h>
50 #include <sys/kernel.h>
52 #include <sys/module.h>
53 #include <sys/mutex.h>
54 #include <sys/sysctl.h>
57 #include <machine/bus.h>
61 #include <cam/cam_ccb.h>
62 #include <cam/cam_sim.h>
63 #include <cam/cam_xpt_sim.h>
64 #include <cam/cam_debug.h>
66 #include <cam/scsi/scsi_message.h>
71 #include <dev/buslogic/btreg.h>
73 /* MailBox Management functions */
74 static __inline void btnextinbox(struct bt_softc *bt);
75 static __inline void btnextoutbox(struct bt_softc *bt);
78 btnextinbox(struct bt_softc *bt)
80 if (bt->cur_inbox == bt->last_inbox)
81 bt->cur_inbox = bt->in_boxes;
87 btnextoutbox(struct bt_softc *bt)
89 if (bt->cur_outbox == bt->last_outbox)
90 bt->cur_outbox = bt->out_boxes;
95 /* CCB Mangement functions */
96 static __inline u_int32_t btccbvtop(struct bt_softc *bt,
98 static __inline struct bt_ccb* btccbptov(struct bt_softc *bt,
100 static __inline u_int32_t btsensepaddr(struct bt_softc *bt,
101 struct bt_ccb *bccb);
102 static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt,
103 struct bt_ccb *bccb);
105 static __inline u_int32_t
106 btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb)
108 return (bt->bt_ccb_physbase
109 + (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array));
112 static __inline struct bt_ccb *
113 btccbptov(struct bt_softc *bt, u_int32_t ccb_addr)
115 return (bt->bt_ccb_array +
116 ((struct bt_ccb*)(uintptr_t)ccb_addr - (struct bt_ccb*)(uintptr_t)bt->bt_ccb_physbase));
119 static __inline u_int32_t
120 btsensepaddr(struct bt_softc *bt, struct bt_ccb *bccb)
124 index = (u_int)(bccb - bt->bt_ccb_array);
125 return (bt->sense_buffers_physbase
126 + (index * sizeof(struct scsi_sense_data)));
129 static __inline struct scsi_sense_data *
130 btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb)
134 index = (u_int)(bccb - bt->bt_ccb_array);
135 return (bt->sense_buffers + index);
138 static __inline struct bt_ccb* btgetccb(struct bt_softc *bt);
139 static __inline void btfreeccb(struct bt_softc *bt,
140 struct bt_ccb *bccb);
141 static void btallocccbs(struct bt_softc *bt);
142 static bus_dmamap_callback_t btexecuteccb;
143 static void btdone(struct bt_softc *bt, struct bt_ccb *bccb,
144 bt_mbi_comp_code_t comp_code);
145 static void bt_intr_locked(struct bt_softc *bt);
147 /* Host adapter command functions */
148 static int btreset(struct bt_softc* bt, int hard_reset);
150 /* Initialization functions */
151 static int btinitmboxes(struct bt_softc *bt);
152 static bus_dmamap_callback_t btmapmboxes;
153 static bus_dmamap_callback_t btmapccbs;
154 static bus_dmamap_callback_t btmapsgs;
156 /* Transfer Negotiation Functions */
157 static void btfetchtransinfo(struct bt_softc *bt,
158 struct ccb_trans_settings *cts);
160 /* CAM SIM entry points */
161 #define ccb_bccb_ptr spriv_ptr0
162 #define ccb_bt_ptr spriv_ptr1
163 static void btaction(struct cam_sim *sim, union ccb *ccb);
164 static void btpoll(struct cam_sim *sim);
166 /* Our timeout handler */
167 static void bttimeout(void *arg);
171 * Do our own re-probe protection until a configuration
172 * manager can do it for us. This ensures that we don't
173 * reprobe a card already found by the PCI probes.
175 struct bt_isa_port bt_isa_ports[] =
186 * I/O ports listed in the order enumerated by the
187 * card for certain op codes.
189 u_int16_t bt_board_ports[] =
199 /* Exported functions */
201 bt_init_softc(device_t dev, struct resource *port,
202 struct resource *irq, struct resource *drq)
204 struct bt_softc *bt = device_get_softc(dev);
206 SLIST_INIT(&bt->free_bt_ccbs);
207 LIST_INIT(&bt->pending_ccbs);
208 SLIST_INIT(&bt->sg_maps);
213 mtx_init(&bt->lock, "bt", NULL, MTX_DEF);
217 bt_free_softc(device_t dev)
219 struct bt_softc *bt = device_get_softc(dev);
221 switch (bt->init_level) {
224 bus_dmamap_unload(bt->sense_dmat, bt->sense_dmamap);
226 bus_dmamem_free(bt->sense_dmat, bt->sense_buffers,
229 bus_dma_tag_destroy(bt->sense_dmat);
232 struct sg_map_node *sg_map;
234 while ((sg_map = SLIST_FIRST(&bt->sg_maps))!= NULL) {
235 SLIST_REMOVE_HEAD(&bt->sg_maps, links);
236 bus_dmamap_unload(bt->sg_dmat,
238 bus_dmamem_free(bt->sg_dmat, sg_map->sg_vaddr,
240 free(sg_map, M_DEVBUF);
242 bus_dma_tag_destroy(bt->sg_dmat);
245 bus_dmamap_unload(bt->ccb_dmat, bt->ccb_dmamap);
248 bus_dmamem_free(bt->ccb_dmat, bt->bt_ccb_array,
252 bus_dma_tag_destroy(bt->ccb_dmat);
255 bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap);
258 bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes,
262 bus_dma_tag_destroy(bt->buffer_dmat);
265 bus_dma_tag_destroy(bt->mailbox_dmat);
270 mtx_destroy(&bt->lock);
274 bt_port_probe(device_t dev, struct bt_probe_info *info)
276 struct bt_softc *bt = device_get_softc(dev);
277 config_data_t config_data;
280 /* See if there is really a card present */
281 if (bt_probe(dev) || bt_fetch_adapter_info(dev))
285 * Determine our IRQ, and DMA settings and
286 * export them to the configuration system.
289 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
290 (u_int8_t*)&config_data, sizeof(config_data),
291 DEFAULT_CMD_TIMEOUT);
292 mtx_unlock(&bt->lock);
294 printf("bt_port_probe: Could not determine IRQ or DMA "
295 "settings for adapter.\n");
299 if (bt->model[0] == '5') {
300 /* DMA settings only make sense for ISA cards */
301 switch (config_data.dma_chan) {
312 printf("bt_port_probe: Invalid DMA setting "
313 "detected for adapter.\n");
319 switch (config_data.irq) {
326 info->irq = ffs(config_data.irq) + 8;
329 printf("bt_port_probe: Invalid IRQ setting %x"
330 "detected for adapter.\n", config_data.irq);
337 * Probe the adapter and verify that the card is a BusLogic.
340 bt_probe(device_t dev)
342 struct bt_softc *bt = device_get_softc(dev);
343 esetup_info_data_t esetup_info;
351 * See if the three I/O ports look reasonable.
352 * Touch the minimal number of registers in the
355 status = bt_inb(bt, STATUS_REG);
357 || (status & (DIAG_ACTIVE|CMD_REG_BUSY|
358 STATUS_REG_RSVD|CMD_INVALID)) != 0) {
360 device_printf(dev, "Failed Status Reg Test - %x\n",
365 intstat = bt_inb(bt, INTSTAT_REG);
366 if ((intstat & INTSTAT_REG_RSVD) != 0) {
367 device_printf(dev, "Failed Intstat Reg Test\n");
371 geometry = bt_inb(bt, GEOMETRY_REG);
372 if (geometry == 0xFF) {
374 device_printf(dev, "Failed Geometry Reg Test\n");
379 * Looking good so far. Final test is to reset the
380 * adapter and attempt to fetch the extended setup
381 * information. This should filter out all 1542 cards.
384 if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) {
385 mtx_unlock(&bt->lock);
387 device_printf(dev, "Failed Reset\n");
391 param = sizeof(esetup_info);
392 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1,
393 (u_int8_t*)&esetup_info, sizeof(esetup_info),
394 DEFAULT_CMD_TIMEOUT);
395 mtx_unlock(&bt->lock);
404 * Pull the boards setup information and record it in our softc.
407 bt_fetch_adapter_info(device_t dev)
409 struct bt_softc *bt = device_get_softc(dev);
410 board_id_data_t board_id;
411 esetup_info_data_t esetup_info;
412 config_data_t config_data;
414 u_int8_t length_param;
416 /* First record the firmware version */
418 error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0,
419 (u_int8_t*)&board_id, sizeof(board_id),
420 DEFAULT_CMD_TIMEOUT);
422 mtx_unlock(&bt->lock);
423 device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n");
426 bt->firmware_ver[0] = board_id.firmware_rev_major;
427 bt->firmware_ver[1] = '.';
428 bt->firmware_ver[2] = board_id.firmware_rev_minor;
429 bt->firmware_ver[3] = '\0';
432 * Depending on the firmware major and minor version,
433 * we may be able to fetch additional minor version info.
435 if (bt->firmware_ver[0] > '0') {
437 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0,
438 (u_int8_t*)&bt->firmware_ver[3], 1,
439 DEFAULT_CMD_TIMEOUT);
441 mtx_unlock(&bt->lock);
443 "bt_fetch_adapter_info - Failed Get "
444 "Firmware 3rd Digit\n");
447 if (bt->firmware_ver[3] == ' ')
448 bt->firmware_ver[3] = '\0';
449 bt->firmware_ver[4] = '\0';
452 if (strcmp(bt->firmware_ver, "3.3") >= 0) {
454 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0,
455 (u_int8_t*)&bt->firmware_ver[4], 1,
456 DEFAULT_CMD_TIMEOUT);
458 mtx_unlock(&bt->lock);
460 "bt_fetch_adapter_info - Failed Get "
461 "Firmware 4th Digit\n");
464 if (bt->firmware_ver[4] == ' ')
465 bt->firmware_ver[4] = '\0';
466 bt->firmware_ver[5] = '\0';
470 * Some boards do not handle the "recently documented"
471 * Inquire Board Model Number command correctly or do not give
472 * exact information. Use the Firmware and Extended Setup
473 * information in these cases to come up with the right answer.
474 * The major firmware revision number indicates:
476 * 5.xx BusLogic "W" Series Host Adapters:
478 * 4.xx BusLogic "C" Series Host Adapters:
479 * BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
480 * 3.xx BusLogic "S" Series Host Adapters:
481 * BT-747S/747D/757S/757D/445S/545S/542D
482 * BT-542B/742A (revision H)
483 * 2.xx BusLogic "A" Series Host Adapters:
484 * BT-542B/742A (revision G and below)
486 length_param = sizeof(esetup_info);
487 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1,
488 (u_int8_t*)&esetup_info, sizeof(esetup_info),
489 DEFAULT_CMD_TIMEOUT);
491 mtx_unlock(&bt->lock);
495 bt->bios_addr = esetup_info.bios_addr << 12;
497 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR;
498 if (esetup_info.bus_type == 'A'
499 && bt->firmware_ver[0] == '2') {
500 snprintf(bt->model, sizeof(bt->model), "542B");
502 ha_model_data_t model_data;
505 length_param = sizeof(model_data);
506 error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1,
507 (u_int8_t*)&model_data, sizeof(model_data),
508 DEFAULT_CMD_TIMEOUT);
510 mtx_unlock(&bt->lock);
512 "bt_fetch_adapter_info - Failed Inquire "
516 for (i = 0; i < sizeof(model_data.ascii_model); i++) {
517 bt->model[i] = model_data.ascii_model[i];
518 if (bt->model[i] == ' ')
524 bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0;
526 /* SG element limits */
527 bt->max_sg = esetup_info.max_sg;
529 /* Set feature flags */
530 bt->wide_bus = esetup_info.wide_bus;
531 bt->diff_bus = esetup_info.diff_bus;
532 bt->ultra_scsi = esetup_info.ultra_scsi;
534 if ((bt->firmware_ver[0] == '5')
535 || (bt->firmware_ver[0] == '4' && bt->wide_bus))
536 bt->extended_lun = TRUE;
538 bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0);
541 ((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0);
544 * Determine max CCB count and whether tagged queuing is
545 * available based on controller type. Tagged queuing
546 * only works on 'W' series adapters, 'C' series adapters
547 * with firmware of rev 4.42 and higher, and 'S' series
548 * adapters with firmware of rev 3.35 and higher. The
549 * maximum CCB counts are as follows:
551 * 192 BT-948/958/958D
552 * 100 BT-946C/956C/956CD/747C/757C/757CD/445C
554 * 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
556 if (bt->firmware_ver[0] == '5') {
558 bt->tag_capable = TRUE;
559 } else if (bt->firmware_ver[0] == '4') {
560 if (bt->model[0] == '5')
564 bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0);
567 if (bt->firmware_ver[0] == '3'
568 && (strcmp(bt->firmware_ver, "3.35") >= 0))
569 bt->tag_capable = TRUE;
571 bt->tag_capable = FALSE;
574 if (bt->tag_capable != FALSE)
575 bt->tags_permitted = ALL_TARGETS;
577 /* Determine Sync/Wide/Disc settings */
578 if (bt->firmware_ver[0] >= '4') {
579 auto_scsi_data_t auto_scsi_data;
580 fetch_lram_params_t fetch_lram_params;
584 * These settings are stored in the
585 * AutoSCSI data in LRAM of 'W' and 'C'
588 fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET;
589 fetch_lram_params.response_len = sizeof(auto_scsi_data);
590 error = bt_cmd(bt, BOP_FETCH_LRAM,
591 (u_int8_t*)&fetch_lram_params,
592 sizeof(fetch_lram_params),
593 (u_int8_t*)&auto_scsi_data,
594 sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT);
597 mtx_unlock(&bt->lock);
599 "bt_fetch_adapter_info - Failed "
600 "Get Auto SCSI Info\n");
604 bt->disc_permitted = auto_scsi_data.low_disc_permitted
605 | (auto_scsi_data.high_disc_permitted << 8);
606 bt->sync_permitted = auto_scsi_data.low_sync_permitted
607 | (auto_scsi_data.high_sync_permitted << 8);
608 bt->fast_permitted = auto_scsi_data.low_fast_permitted
609 | (auto_scsi_data.high_fast_permitted << 8);
610 bt->ultra_permitted = auto_scsi_data.low_ultra_permitted
611 | (auto_scsi_data.high_ultra_permitted << 8);
612 bt->wide_permitted = auto_scsi_data.low_wide_permitted
613 | (auto_scsi_data.high_wide_permitted << 8);
615 if (bt->ultra_scsi == FALSE)
616 bt->ultra_permitted = 0;
618 if (bt->wide_bus == FALSE)
619 bt->wide_permitted = 0;
622 * 'S' and 'A' series have this information in the setup
623 * information structure.
625 setup_data_t setup_info;
627 length_param = sizeof(setup_info);
628 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param,
629 /*paramlen*/1, (u_int8_t*)&setup_info,
630 sizeof(setup_info), DEFAULT_CMD_TIMEOUT);
633 mtx_unlock(&bt->lock);
635 "bt_fetch_adapter_info - Failed "
640 if (setup_info.initiate_sync != 0) {
641 bt->sync_permitted = ALL_TARGETS;
643 if (bt->model[0] == '7') {
644 if (esetup_info.sync_neg10MB != 0)
645 bt->fast_permitted = ALL_TARGETS;
646 if (strcmp(bt->model, "757") == 0)
647 bt->wide_permitted = ALL_TARGETS;
650 bt->disc_permitted = ALL_TARGETS;
653 /* We need as many mailboxes as we can have ccbs */
654 bt->num_boxes = bt->max_ccbs;
656 /* Determine our SCSI ID */
658 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
659 (u_int8_t*)&config_data, sizeof(config_data),
660 DEFAULT_CMD_TIMEOUT);
661 mtx_unlock(&bt->lock);
664 "bt_fetch_adapter_info - Failed Get Config\n");
667 bt->scsi_id = config_data.scsi_id;
673 * Start the board, ready for normal operation
676 bt_init(device_t dev)
678 struct bt_softc *bt = device_get_softc(dev);
680 /* Announce the Adapter */
681 device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver);
683 if (bt->ultra_scsi != 0)
686 if (bt->wide_bus != 0)
691 if (bt->diff_bus != 0)
694 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id,
698 * Create our DMA tags. These tags define the kinds of device
699 * accessible memory allocations and memory mappings we will
700 * need to perform during normal operation.
702 * Unless we need to further restrict the allocation, we rely
703 * on the restrictions of the parent dmat, hence the common
704 * use of MAXADDR and MAXSIZE.
707 /* DMA tag for mapping buffers into device visible space. */
708 if (bus_dma_tag_create( /* parent */ bt->parent_dmat,
711 /* lowaddr */ BUS_SPACE_MAXADDR,
712 /* highaddr */ BUS_SPACE_MAXADDR,
714 /* filterarg */ NULL,
715 /* maxsize */ DFLTPHYS,
716 /* nsegments */ BT_NSEG,
717 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
718 /* flags */ BUS_DMA_ALLOCNOW,
719 /* lockfunc */ busdma_lock_mutex,
720 /* lockarg */ &bt->lock,
721 &bt->buffer_dmat) != 0) {
726 /* DMA tag for our mailboxes */
727 if (bus_dma_tag_create( /* parent */ bt->parent_dmat,
730 /* lowaddr */ bt->mailbox_addrlimit,
731 /* highaddr */ BUS_SPACE_MAXADDR,
733 /* filterarg */ NULL,
734 /* maxsize */ bt->num_boxes *
735 (sizeof(bt_mbox_in_t) +
736 sizeof(bt_mbox_out_t)),
738 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
742 &bt->mailbox_dmat) != 0) {
748 /* Allocation for our mailboxes */
749 if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes,
750 BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) {
756 /* And permanently map them */
757 bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap,
759 bt->num_boxes * (sizeof(bt_mbox_in_t)
760 + sizeof(bt_mbox_out_t)),
761 btmapmboxes, bt, /*flags*/0);
765 bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes];
769 mtx_unlock(&bt->lock);
771 /* DMA tag for our ccb structures */
772 if (bus_dma_tag_create( /* parent */ bt->parent_dmat,
775 /* lowaddr */ BUS_SPACE_MAXADDR,
776 /* highaddr */ BUS_SPACE_MAXADDR,
778 /* filterarg */ NULL,
779 /* maxsize */ bt->max_ccbs *
780 sizeof(struct bt_ccb),
782 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
786 &bt->ccb_dmat) != 0) {
792 /* Allocation for our ccbs */
793 if (bus_dmamem_alloc(bt->ccb_dmat, (void **)&bt->bt_ccb_array,
794 BUS_DMA_NOWAIT, &bt->ccb_dmamap) != 0) {
800 /* And permanently map them */
801 bus_dmamap_load(bt->ccb_dmat, bt->ccb_dmamap,
803 bt->max_ccbs * sizeof(struct bt_ccb),
804 btmapccbs, bt, /*flags*/0);
808 /* DMA tag for our S/G structures. We allocate in page sized chunks */
809 if (bus_dma_tag_create( /* parent */ bt->parent_dmat,
812 /* lowaddr */ BUS_SPACE_MAXADDR,
813 /* highaddr */ BUS_SPACE_MAXADDR,
815 /* filterarg */ NULL,
816 /* maxsize */ PAGE_SIZE,
818 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
822 &bt->sg_dmat) != 0) {
828 /* Perform initial CCB allocation */
829 bzero(bt->bt_ccb_array, bt->max_ccbs * sizeof(struct bt_ccb));
832 if (bt->num_ccbs == 0) {
834 "bt_init - Unable to allocate initial ccbs\n");
839 * Note that we are going and return (to attach)
849 bt_attach(device_t dev)
851 struct bt_softc *bt = device_get_softc(dev);
852 int tagged_dev_openings;
853 struct cam_devq *devq;
857 * We reserve 1 ccb for error recovery, so don't
858 * tell the XPT about it.
860 if (bt->tag_capable != 0)
861 tagged_dev_openings = bt->max_ccbs - 1;
863 tagged_dev_openings = 0;
866 * Create the device queue for our SIM.
868 devq = cam_simq_alloc(bt->max_ccbs - 1);
873 * Construct our SIM entry
875 bt->sim = cam_sim_alloc(btaction, btpoll, "bt", bt,
876 device_get_unit(bt->dev), &bt->lock, 2, tagged_dev_openings, devq);
877 if (bt->sim == NULL) {
883 if (xpt_bus_register(bt->sim, dev, 0) != CAM_SUCCESS) {
884 cam_sim_free(bt->sim, /*free_devq*/TRUE);
885 mtx_unlock(&bt->lock);
889 if (xpt_create_path(&bt->path, /*periph*/NULL,
890 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD,
891 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
892 xpt_bus_deregister(cam_sim_path(bt->sim));
893 cam_sim_free(bt->sim, /*free_devq*/TRUE);
894 mtx_unlock(&bt->lock);
897 mtx_unlock(&bt->lock);
902 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM | INTR_ENTROPY |
903 INTR_MPSAFE, NULL, bt_intr, bt, &bt->ih);
905 device_printf(dev, "bus_setup_intr() failed: %d\n", error);
913 bt_check_probed_iop(u_int ioport)
917 for (i = 0; i < BT_NUM_ISAPORTS; i++) {
918 if (bt_isa_ports[i].addr == ioport) {
919 if (bt_isa_ports[i].probed != 0)
930 bt_mark_probed_bio(isa_compat_io_t port)
932 if (port < BIO_DISABLED)
933 bt_mark_probed_iop(bt_board_ports[port]);
937 bt_mark_probed_iop(u_int ioport)
941 for (i = 0; i < BT_NUM_ISAPORTS; i++) {
942 if (ioport == bt_isa_ports[i].addr) {
943 bt_isa_ports[i].probed = 1;
950 bt_find_probe_range(int ioport, int *port_index, int *max_port_index)
955 for (i = 0;i < BT_NUM_ISAPORTS; i++)
956 if (ioport <= bt_isa_ports[i].addr)
958 if ((i >= BT_NUM_ISAPORTS)
959 || (ioport != bt_isa_ports[i].addr)) {
961 "bt_find_probe_range: Invalid baseport of 0x%x specified.\n"
962 "bt_find_probe_range: Nearest valid baseport is 0x%x.\n"
963 "bt_find_probe_range: Failing probe.\n",
965 (i < BT_NUM_ISAPORTS)
966 ? bt_isa_ports[i].addr
967 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr);
968 *port_index = *max_port_index = -1;
971 *port_index = *max_port_index = bt_isa_ports[i].bio;
974 *max_port_index = BT_NUM_ISAPORTS - 1;
979 bt_iop_from_bio(isa_compat_io_t bio_index)
981 if (bio_index < BT_NUM_ISAPORTS)
982 return (bt_board_ports[bio_index]);
988 btallocccbs(struct bt_softc *bt)
990 struct bt_ccb *next_ccb;
991 struct sg_map_node *sg_map;
997 if (bt->num_ccbs >= bt->max_ccbs)
998 /* Can't allocate any more */
1001 next_ccb = &bt->bt_ccb_array[bt->num_ccbs];
1003 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT);
1008 /* Allocate S/G space for the next batch of CCBS */
1009 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr,
1010 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
1011 free(sg_map, M_DEVBUF);
1015 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links);
1017 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr,
1018 PAGE_SIZE, btmapsgs, bt, /*flags*/0);
1020 segs = sg_map->sg_vaddr;
1021 physaddr = sg_map->sg_physaddr;
1023 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t)));
1024 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) {
1027 next_ccb->sg_list = segs;
1028 next_ccb->sg_list_phys = physaddr;
1029 next_ccb->flags = BCCB_FREE;
1030 callout_init_mtx(&next_ccb->timer, &bt->lock, 0);
1031 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0,
1035 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links);
1037 physaddr += (BT_NSEG * sizeof(bt_sg_t));
1042 /* Reserve a CCB for error recovery */
1043 if (bt->recovery_bccb == NULL) {
1044 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs);
1045 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
1048 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL)
1052 device_printf(bt->dev, "Can't malloc BCCBs\n");
1055 static __inline void
1056 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb)
1060 mtx_assert(&bt->lock, MA_OWNED);
1061 if ((bccb->flags & BCCB_ACTIVE) != 0)
1062 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le);
1063 if (bt->resource_shortage != 0
1064 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
1065 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1066 bt->resource_shortage = FALSE;
1068 bccb->flags = BCCB_FREE;
1069 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links);
1073 static __inline struct bt_ccb*
1074 btgetccb(struct bt_softc *bt)
1076 struct bt_ccb* bccb;
1079 mtx_assert(&bt->lock, MA_OWNED);
1080 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) {
1081 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
1085 bccb = SLIST_FIRST(&bt->free_bt_ccbs);
1087 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
1096 btaction(struct cam_sim *sim, union ccb *ccb)
1098 struct bt_softc *bt;
1100 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n"));
1102 bt = (struct bt_softc *)cam_sim_softc(sim);
1103 mtx_assert(&bt->lock, MA_OWNED);
1105 switch (ccb->ccb_h.func_code) {
1106 /* Common cases first */
1107 case XPT_SCSI_IO: /* Execute the requested I/O operation */
1108 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
1110 struct bt_ccb *bccb;
1111 struct bt_hccb *hccb;
1114 * get a bccb to use.
1116 if ((bccb = btgetccb(bt)) == NULL) {
1118 bt->resource_shortage = TRUE;
1119 xpt_freeze_simq(bt->sim, /*count*/1);
1120 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1128 * So we can find the BCCB when an abort is requested
1131 ccb->ccb_h.ccb_bccb_ptr = bccb;
1132 ccb->ccb_h.ccb_bt_ptr = bt;
1135 * Put all the arguments for the xfer in the bccb
1137 hccb->target_id = ccb->ccb_h.target_id;
1138 hccb->target_lun = ccb->ccb_h.target_lun;
1142 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1143 struct ccb_scsiio *csio;
1144 struct ccb_hdr *ccbh;
1148 ccbh = &csio->ccb_h;
1149 hccb->opcode = INITIATOR_CCB_WRESID;
1150 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0;
1151 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0;
1152 hccb->cmd_len = csio->cdb_len;
1153 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) {
1154 ccb->ccb_h.status = CAM_REQ_INVALID;
1155 btfreeccb(bt, bccb);
1159 hccb->sense_len = csio->sense_len;
1160 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0
1161 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) {
1162 hccb->tag_enable = TRUE;
1163 hccb->tag_type = (ccb->csio.tag_action & 0x3);
1165 hccb->tag_enable = FALSE;
1168 if ((ccbh->flags & CAM_CDB_POINTER) != 0) {
1169 if ((ccbh->flags & CAM_CDB_PHYS) == 0) {
1170 bcopy(csio->cdb_io.cdb_ptr,
1171 hccb->scsi_cdb, hccb->cmd_len);
1173 /* I guess I could map it in... */
1174 ccbh->status = CAM_REQ_INVALID;
1175 btfreeccb(bt, bccb);
1180 bcopy(csio->cdb_io.cdb_bytes,
1181 hccb->scsi_cdb, hccb->cmd_len);
1183 /* If need be, bounce our sense buffer */
1184 if (bt->sense_buffers != NULL) {
1185 hccb->sense_addr = btsensepaddr(bt, bccb);
1187 hccb->sense_addr = vtophys(&csio->sense_data);
1190 * If we have any data to send with this command,
1191 * map it into bus space.
1193 error = bus_dmamap_load_ccb(
1200 if (error == EINPROGRESS) {
1202 * So as to maintain ordering, freeze the
1203 * controller queue until our mapping is
1206 xpt_freeze_simq(bt->sim, 1);
1207 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
1210 hccb->opcode = INITIATOR_BUS_DEV_RESET;
1211 /* No data transfer */
1212 hccb->datain = TRUE;
1213 hccb->dataout = TRUE;
1215 hccb->sense_len = 0;
1216 hccb->tag_enable = FALSE;
1218 btexecuteccb(bccb, NULL, 0, 0);
1222 case XPT_ABORT: /* Abort the specified CCB */
1224 ccb->ccb_h.status = CAM_REQ_INVALID;
1227 case XPT_SET_TRAN_SETTINGS:
1230 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
1234 case XPT_GET_TRAN_SETTINGS:
1235 /* Get default/user set transfer settings for the target */
1237 struct ccb_trans_settings *cts;
1241 target_mask = 0x01 << ccb->ccb_h.target_id;
1242 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1243 struct ccb_trans_settings_scsi *scsi =
1244 &cts->proto_specific.scsi;
1245 struct ccb_trans_settings_spi *spi =
1246 &cts->xport_specific.spi;
1247 cts->protocol = PROTO_SCSI;
1248 cts->protocol_version = SCSI_REV_2;
1249 cts->transport = XPORT_SPI;
1250 cts->transport_version = 2;
1252 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
1253 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
1255 if ((bt->disc_permitted & target_mask) != 0)
1256 spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
1257 if ((bt->tags_permitted & target_mask) != 0)
1258 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
1260 if ((bt->ultra_permitted & target_mask) != 0)
1261 spi->sync_period = 12;
1262 else if ((bt->fast_permitted & target_mask) != 0)
1263 spi->sync_period = 25;
1264 else if ((bt->sync_permitted & target_mask) != 0)
1265 spi->sync_period = 50;
1267 spi->sync_period = 0;
1269 if (spi->sync_period != 0)
1270 spi->sync_offset = 15;
1272 spi->valid |= CTS_SPI_VALID_SYNC_RATE;
1273 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
1275 spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
1276 if ((bt->wide_permitted & target_mask) != 0)
1277 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
1279 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
1281 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
1282 scsi->valid = CTS_SCSI_VALID_TQ;
1283 spi->valid |= CTS_SPI_VALID_DISC;
1287 btfetchtransinfo(bt, cts);
1290 ccb->ccb_h.status = CAM_REQ_CMP;
1294 case XPT_CALC_GEOMETRY:
1296 struct ccb_calc_geometry *ccg;
1298 u_int32_t secs_per_cylinder;
1301 size_mb = ccg->volume_size
1302 / ((1024L * 1024L) / ccg->block_size);
1304 if (size_mb >= 1024 && (bt->extended_trans != 0)) {
1305 if (size_mb >= 2048) {
1307 ccg->secs_per_track = 63;
1310 ccg->secs_per_track = 32;
1314 ccg->secs_per_track = 32;
1316 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
1317 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
1318 ccb->ccb_h.status = CAM_REQ_CMP;
1322 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
1324 btreset(bt, /*hardreset*/TRUE);
1325 ccb->ccb_h.status = CAM_REQ_CMP;
1329 case XPT_TERM_IO: /* Terminate the I/O process */
1331 ccb->ccb_h.status = CAM_REQ_INVALID;
1334 case XPT_PATH_INQ: /* Path routing inquiry */
1336 struct ccb_pathinq *cpi = &ccb->cpi;
1338 cpi->version_num = 1; /* XXX??? */
1339 cpi->hba_inquiry = PI_SDTR_ABLE;
1340 if (bt->tag_capable != 0)
1341 cpi->hba_inquiry |= PI_TAG_ABLE;
1342 if (bt->wide_bus != 0)
1343 cpi->hba_inquiry |= PI_WIDE_16;
1344 cpi->target_sprt = 0;
1346 cpi->hba_eng_cnt = 0;
1347 cpi->max_target = bt->wide_bus ? 15 : 7;
1349 cpi->initiator_id = bt->scsi_id;
1350 cpi->bus_id = cam_sim_bus(sim);
1351 cpi->base_transfer_speed = 3300;
1352 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1353 strlcpy(cpi->hba_vid, "BusLogic", HBA_IDLEN);
1354 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1355 cpi->unit_number = cam_sim_unit(sim);
1356 cpi->ccb_h.status = CAM_REQ_CMP;
1357 cpi->transport = XPORT_SPI;
1358 cpi->transport_version = 2;
1359 cpi->protocol = PROTO_SCSI;
1360 cpi->protocol_version = SCSI_REV_2;
1365 ccb->ccb_h.status = CAM_REQ_INVALID;
1372 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1374 struct bt_ccb *bccb;
1376 struct bt_softc *bt;
1378 bccb = (struct bt_ccb *)arg;
1380 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr;
1384 device_printf(bt->dev,
1385 "Unexepected error 0x%x returned from "
1386 "bus_dmamap_load\n", error);
1387 if (ccb->ccb_h.status == CAM_REQ_INPROG) {
1388 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
1389 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN;
1391 btfreeccb(bt, bccb);
1398 bus_dma_segment_t *end_seg;
1399 bus_dmasync_op_t op;
1401 end_seg = dm_segs + nseg;
1403 /* Copy the segments into our SG list */
1405 while (dm_segs < end_seg) {
1406 sg->len = dm_segs->ds_len;
1407 sg->addr = dm_segs->ds_addr;
1413 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID;
1414 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg;
1415 bccb->hccb.data_addr = bccb->sg_list_phys;
1417 bccb->hccb.data_len = bccb->sg_list->len;
1418 bccb->hccb.data_addr = bccb->sg_list->addr;
1421 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1422 op = BUS_DMASYNC_PREREAD;
1424 op = BUS_DMASYNC_PREWRITE;
1426 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op);
1429 bccb->hccb.opcode = INITIATOR_CCB;
1430 bccb->hccb.data_len = 0;
1431 bccb->hccb.data_addr = 0;
1435 * Last time we need to check if this CCB needs to
1438 if (ccb->ccb_h.status != CAM_REQ_INPROG) {
1440 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
1441 btfreeccb(bt, bccb);
1446 bccb->flags = BCCB_ACTIVE;
1447 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1448 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le);
1450 callout_reset_sbt(&bccb->timer, SBT_1MS * ccb->ccb_h.timeout, 0,
1451 bttimeout, bccb, 0);
1453 /* Tell the adapter about this command */
1454 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb);
1455 if (bt->cur_outbox->action_code != BMBO_FREE) {
1457 * We should never encounter a busy mailbox.
1458 * If we do, warn the user, and treat it as
1459 * a resource shortage. If the controller is
1460 * hung, one of the pending transactions will
1461 * timeout causing us to start recovery operations.
1463 device_printf(bt->dev,
1464 "Encountered busy mailbox with %d out of %d "
1465 "commands active!!!\n", bt->active_ccbs,
1467 callout_stop(&bccb->timer);
1469 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
1470 btfreeccb(bt, bccb);
1471 bt->resource_shortage = TRUE;
1472 xpt_freeze_simq(bt->sim, /*count*/1);
1473 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1477 bt->cur_outbox->action_code = BMBO_START;
1478 bt_outb(bt, COMMAND_REG, BOP_START_MBOX);
1485 struct bt_softc *bt;
1488 mtx_lock(&bt->lock);
1490 mtx_unlock(&bt->lock);
1494 bt_intr_locked(struct bt_softc *bt)
1498 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) {
1500 if ((intstat & CMD_COMPLETE) != 0) {
1501 bt->latched_status = bt_inb(bt, STATUS_REG);
1502 bt->command_cmp = TRUE;
1505 bt_outb(bt, CONTROL_REG, RESET_INTR);
1507 if ((intstat & IMB_LOADED) != 0) {
1508 while (bt->cur_inbox->comp_code != BMBI_FREE) {
1510 btccbptov(bt, bt->cur_inbox->ccb_addr),
1511 bt->cur_inbox->comp_code);
1512 bt->cur_inbox->comp_code = BMBI_FREE;
1517 if ((intstat & SCSI_BUS_RESET) != 0) {
1518 btreset(bt, /*hardreset*/FALSE);
1524 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code)
1527 struct ccb_scsiio *csio;
1530 csio = &bccb->ccb->csio;
1532 if ((bccb->flags & BCCB_ACTIVE) == 0) {
1533 device_printf(bt->dev,
1534 "btdone - Attempt to free non-active BCCB %p\n",
1539 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1540 bus_dmasync_op_t op;
1542 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1543 op = BUS_DMASYNC_POSTREAD;
1545 op = BUS_DMASYNC_POSTWRITE;
1546 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op);
1547 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
1550 if (bccb == bt->recovery_bccb) {
1552 * The recovery BCCB does not have a CCB associated
1553 * with it, so short circuit the normal error handling.
1554 * We now traverse our list of pending CCBs and process
1555 * any that were terminated by the recovery CCBs action.
1556 * We also reinstate timeouts for all remaining, pending,
1559 struct cam_path *path;
1560 struct ccb_hdr *ccb_h;
1563 /* Notify all clients that a BDR occurred */
1564 error = xpt_create_path(&path, /*periph*/NULL,
1565 cam_sim_path(bt->sim),
1566 bccb->hccb.target_id,
1569 if (error == CAM_REQ_CMP) {
1570 xpt_async(AC_SENT_BDR, path, NULL);
1571 xpt_free_path(path);
1574 ccb_h = LIST_FIRST(&bt->pending_ccbs);
1575 while (ccb_h != NULL) {
1576 struct bt_ccb *pending_bccb;
1578 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
1579 if (pending_bccb->hccb.target_id
1580 == bccb->hccb.target_id) {
1581 pending_bccb->hccb.btstat = BTSTAT_HA_BDR;
1582 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1583 btdone(bt, pending_bccb, BMBI_ERROR);
1585 callout_reset_sbt(&pending_bccb->timer,
1586 SBT_1MS * ccb_h->timeout, 0, bttimeout,
1588 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
1591 device_printf(bt->dev, "No longer in timeout\n");
1595 callout_stop(&bccb->timer);
1597 switch (comp_code) {
1599 device_printf(bt->dev,
1600 "btdone - CCB completed with free status!\n");
1602 case BMBI_NOT_FOUND:
1603 device_printf(bt->dev,
1604 "btdone - CCB Abort failed to find CCB\n");
1609 printf("bt: ccb %p - error %x occurred. "
1610 "btstat = %x, sdstat = %x\n",
1611 (void *)bccb, comp_code, bccb->hccb.btstat,
1614 /* An error occurred */
1615 switch(bccb->hccb.btstat) {
1616 case BTSTAT_DATARUN_ERROR:
1617 if (bccb->hccb.data_len == 0) {
1619 * At least firmware 4.22, does this
1620 * for a QUEUE FULL condition.
1622 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL;
1623 } else if (bccb->hccb.data_len < 0) {
1624 csio->ccb_h.status = CAM_DATA_RUN_ERR;
1628 case BTSTAT_NOERROR:
1629 case BTSTAT_LINKED_CMD_COMPLETE:
1630 case BTSTAT_LINKED_CMD_FLAG_COMPLETE:
1631 case BTSTAT_DATAUNDERUN_ERROR:
1633 csio->scsi_status = bccb->hccb.sdstat;
1634 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1635 switch(csio->scsi_status) {
1636 case SCSI_STATUS_CHECK_COND:
1637 case SCSI_STATUS_CMD_TERMINATED:
1638 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
1639 /* Bounce sense back if necessary */
1640 if (bt->sense_buffers != NULL) {
1642 *btsensevaddr(bt, bccb);
1647 case SCSI_STATUS_OK:
1648 csio->ccb_h.status = CAM_REQ_CMP;
1651 csio->resid = bccb->hccb.data_len;
1653 case BTSTAT_SELTIMEOUT:
1654 csio->ccb_h.status = CAM_SEL_TIMEOUT;
1656 case BTSTAT_UNEXPECTED_BUSFREE:
1657 csio->ccb_h.status = CAM_UNEXP_BUSFREE;
1659 case BTSTAT_INVALID_PHASE:
1660 csio->ccb_h.status = CAM_SEQUENCE_FAIL;
1662 case BTSTAT_INVALID_ACTION_CODE:
1663 panic("%s: Inavlid Action code", bt_name(bt));
1665 case BTSTAT_INVALID_OPCODE:
1666 panic("%s: Inavlid CCB Opcode code", bt_name(bt));
1668 case BTSTAT_LINKED_CCB_LUN_MISMATCH:
1669 /* We don't even support linked commands... */
1670 panic("%s: Linked CCB Lun Mismatch", bt_name(bt));
1672 case BTSTAT_INVALID_CCB_OR_SG_PARAM:
1673 panic("%s: Invalid CCB or SG list", bt_name(bt));
1675 case BTSTAT_AUTOSENSE_FAILED:
1676 csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
1678 case BTSTAT_TAGGED_MSG_REJECTED:
1680 struct ccb_trans_settings neg;
1681 struct ccb_trans_settings_scsi *scsi =
1682 &neg.proto_specific.scsi;
1684 neg.protocol = PROTO_SCSI;
1685 neg.protocol_version = SCSI_REV_2;
1686 neg.transport = XPORT_SPI;
1687 neg.transport_version = 2;
1688 scsi->valid = CTS_SCSI_VALID_TQ;
1690 xpt_print_path(csio->ccb_h.path);
1691 printf("refuses tagged commands. Performing "
1692 "non-tagged I/O\n");
1693 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path,
1695 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg);
1696 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id);
1697 csio->ccb_h.status = CAM_MSG_REJECT_REC;
1700 case BTSTAT_UNSUPPORTED_MSG_RECEIVED:
1702 * XXX You would think that this is
1703 * a recoverable error... Hmmm.
1705 csio->ccb_h.status = CAM_REQ_CMP_ERR;
1707 case BTSTAT_HA_SOFTWARE_ERROR:
1708 case BTSTAT_HA_WATCHDOG_ERROR:
1709 case BTSTAT_HARDWARE_FAILURE:
1710 /* Hardware reset ??? Can we recover ??? */
1711 csio->ccb_h.status = CAM_NO_HBA;
1713 case BTSTAT_TARGET_IGNORED_ATN:
1714 case BTSTAT_OTHER_SCSI_BUS_RESET:
1715 case BTSTAT_HA_SCSI_BUS_RESET:
1716 if ((csio->ccb_h.status & CAM_STATUS_MASK)
1718 csio->ccb_h.status = CAM_SCSI_BUS_RESET;
1721 if ((bccb->flags & BCCB_DEVICE_RESET) == 0)
1722 csio->ccb_h.status = CAM_BDR_SENT;
1724 csio->ccb_h.status = CAM_CMD_TIMEOUT;
1726 case BTSTAT_INVALID_RECONNECT:
1727 case BTSTAT_ABORT_QUEUE_GENERATED:
1728 csio->ccb_h.status = CAM_REQ_TERMIO;
1730 case BTSTAT_SCSI_PERROR_DETECTED:
1731 csio->ccb_h.status = CAM_UNCOR_PARITY;
1734 if (csio->ccb_h.status != CAM_REQ_CMP) {
1735 xpt_freeze_devq(csio->ccb_h.path, /*count*/1);
1736 csio->ccb_h.status |= CAM_DEV_QFRZN;
1738 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0)
1739 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1740 btfreeccb(bt, bccb);
1744 /* All completed without incident */
1745 ccb->ccb_h.status |= CAM_REQ_CMP;
1746 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0)
1747 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1748 btfreeccb(bt, bccb);
1755 btreset(struct bt_softc* bt, int hard_reset)
1757 struct ccb_hdr *ccb_h;
1760 u_int8_t reset_type;
1762 if (hard_reset != 0)
1763 reset_type = HARD_RESET;
1765 reset_type = SOFT_RESET;
1766 bt_outb(bt, CONTROL_REG, reset_type);
1768 /* Wait 5sec. for Diagnostic start */
1769 timeout = 5 * 10000;
1771 status = bt_inb(bt, STATUS_REG);
1772 if ((status & DIAG_ACTIVE) != 0)
1778 device_printf(bt->dev,
1779 "btreset - Diagnostic Active failed to "
1780 "assert. status = 0x%x\n", status);
1784 /* Wait 10sec. for Diagnostic end */
1785 timeout = 10 * 10000;
1787 status = bt_inb(bt, STATUS_REG);
1788 if ((status & DIAG_ACTIVE) == 0)
1793 panic("%s: btreset - Diagnostic Active failed to drop. "
1794 "status = 0x%x\n", bt_name(bt), status);
1798 /* Wait for the host adapter to become ready or report a failure */
1801 status = bt_inb(bt, STATUS_REG);
1802 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0)
1807 device_printf(bt->dev,
1808 "btreset - Host adapter failed to come ready. "
1809 "status = 0x%x\n", status);
1813 /* If the diagnostics failed, tell the user */
1814 if ((status & DIAG_FAIL) != 0
1815 || (status & HA_READY) == 0) {
1816 device_printf(bt->dev,
1817 "btreset - Adapter failed diagnostics\n");
1819 if ((status & DATAIN_REG_READY) != 0)
1820 device_printf(bt->dev,
1821 "btreset - Host Adapter Error code = 0x%x\n",
1822 bt_inb(bt, DATAIN_REG));
1826 /* If we've allocated mailboxes, initialize them */
1827 if (bt->init_level > 4)
1830 /* If we've attached to the XPT, tell it about the event */
1831 if (bt->path != NULL)
1832 xpt_async(AC_BUS_RESET, bt->path, NULL);
1835 * Perform completion processing for all outstanding CCBs.
1837 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) {
1838 struct bt_ccb *pending_bccb;
1840 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
1841 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET;
1842 btdone(bt, pending_bccb, BMBI_ERROR);
1849 * Send a command to the adapter.
1852 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len,
1853 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout)
1859 u_int reply_buf_size;
1863 /* No data returned to start */
1864 reply_buf_size = reply_len;
1871 bt->command_cmp = 0;
1873 * Wait up to 10 sec. for the adapter to become
1874 * ready to accept commands.
1878 status = bt_inb(bt, STATUS_REG);
1879 if ((status & HA_READY) != 0
1880 && (status & CMD_REG_BUSY) == 0)
1883 * Throw away any pending data which may be
1884 * left over from earlier commands that we
1887 if ((status & DATAIN_REG_READY) != 0)
1888 (void)bt_inb(bt, DATAIN_REG);
1892 device_printf(bt->dev,
1893 "bt_cmd: Timeout waiting for adapter ready, "
1894 "status = 0x%x\n", status);
1899 * Send the opcode followed by any necessary parameter bytes.
1901 bt_outb(bt, COMMAND_REG, opcode);
1904 * Wait for up to 1sec for each byte of the
1905 * parameter list sent to be sent.
1908 while (param_len && --timeout) {
1910 status = bt_inb(bt, STATUS_REG);
1911 intstat = bt_inb(bt, INTSTAT_REG);
1913 if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1914 == (INTR_PENDING|CMD_COMPLETE)) {
1915 saved_status = status;
1919 if (bt->command_cmp != 0) {
1920 saved_status = bt->latched_status;
1924 if ((status & DATAIN_REG_READY) != 0)
1926 if ((status & CMD_REG_BUSY) == 0) {
1927 bt_outb(bt, COMMAND_REG, *params++);
1933 device_printf(bt->dev, "bt_cmd: Timeout sending parameters, "
1934 "status = 0x%x\n", status);
1936 saved_status = status;
1941 * Wait for the command to complete.
1943 while (cmd_complete == 0 && --cmd_timeout) {
1945 status = bt_inb(bt, STATUS_REG);
1946 intstat = bt_inb(bt, INTSTAT_REG);
1948 * It may be that this command was issued with
1949 * controller interrupts disabled. We'll never
1950 * get to our command if an incoming mailbox
1951 * interrupt is pending, so take care of completed
1952 * mailbox commands by calling our interrupt handler.
1954 if ((intstat & (INTR_PENDING|IMB_LOADED))
1955 == (INTR_PENDING|IMB_LOADED))
1958 if (bt->command_cmp != 0) {
1960 * Our interrupt handler saw CMD_COMPLETE
1961 * status before we did.
1964 saved_status = bt->latched_status;
1965 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE))
1966 == (INTR_PENDING|CMD_COMPLETE)) {
1968 * Our poll (in case interrupts are blocked)
1969 * saw the CMD_COMPLETE interrupt.
1972 saved_status = status;
1973 } else if (opcode == BOP_MODIFY_IO_ADDR
1974 && (status & CMD_REG_BUSY) == 0) {
1976 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE,
1977 * but it should update the status register. So, we
1978 * consider this command complete when the CMD_REG_BUSY
1981 saved_status = status;
1983 } else if ((status & DATAIN_REG_READY) != 0) {
1986 data = bt_inb(bt, DATAIN_REG);
1987 if (reply_len < reply_buf_size) {
1988 *reply_data++ = data;
1990 device_printf(bt->dev,
1991 "bt_cmd - Discarded reply data byte "
1992 "for opcode 0x%x\n", opcode);
1995 * Reset timeout to ensure at least a second
1996 * between response bytes.
1998 cmd_timeout = MAX(cmd_timeout, 10000);
2001 } else if ((opcode == BOP_FETCH_LRAM)
2002 && (status & HA_READY) != 0) {
2003 saved_status = status;
2008 if (cmd_timeout == 0) {
2009 device_printf(bt->dev,
2010 "bt_cmd: Timeout waiting for command (%x) "
2011 "to complete.\n", opcode);
2012 device_printf(bt->dev, "status = 0x%x, intstat = 0x%x, "
2013 "rlen %d\n", status, intstat, reply_len);
2014 error = (ETIMEDOUT);
2018 * Clear any pending interrupts.
2026 * If the command was rejected by the controller, tell the caller.
2028 if ((saved_status & CMD_INVALID) != 0) {
2030 * Some early adapters may not recover properly from
2031 * an invalid command. If it appears that the controller
2032 * has wedged (i.e. status was not cleared by our interrupt
2033 * reset above), perform a soft reset.
2036 device_printf(bt->dev, "Invalid Command 0x%x\n",
2039 status = bt_inb(bt, STATUS_REG);
2040 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY|
2041 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0
2042 || (status & (HA_READY|INIT_REQUIRED))
2043 != (HA_READY|INIT_REQUIRED)) {
2044 btreset(bt, /*hard_reset*/FALSE);
2049 if (param_len > 0) {
2050 /* The controller did not accept the full argument list */
2054 if (reply_len != reply_buf_size) {
2055 /* Too much or too little data received */
2059 /* We were successful */
2064 btinitmboxes(struct bt_softc *bt) {
2065 init_32b_mbox_params_t init_mbox;
2068 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes);
2069 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes);
2070 bt->cur_inbox = bt->in_boxes;
2071 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1;
2072 bt->cur_outbox = bt->out_boxes;
2073 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1;
2075 /* Tell the adapter about them */
2076 init_mbox.num_boxes = bt->num_boxes;
2077 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF;
2078 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF;
2079 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF;
2080 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF;
2081 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox,
2082 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL,
2083 /*reply_len*/0, DEFAULT_CMD_TIMEOUT);
2086 printf("btinitmboxes: Initialization command failed\n");
2087 else if (bt->strict_rr != 0) {
2089 * If the controller supports
2090 * strict round robin mode,
2096 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1,
2097 /*reply_buf*/NULL, /*reply_len*/0,
2098 DEFAULT_CMD_TIMEOUT);
2101 printf("btinitmboxes: Unable to enable strict RR\n");
2103 } else if (bootverbose) {
2104 device_printf(bt->dev,
2105 "Using Strict Round Robin Mailbox Mode\n");
2113 * Update the XPT's idea of the negotiated transfer
2114 * parameters for a particular target.
2117 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings *cts)
2119 setup_data_t setup_info;
2128 targ_syncinfo_t sync_info;
2129 struct ccb_trans_settings_scsi *scsi =
2130 &cts->proto_specific.scsi;
2131 struct ccb_trans_settings_spi *spi =
2132 &cts->xport_specific.spi;
2137 target = cts->ccb_h.target_id;
2138 targ_offset = (target & 0x7);
2139 targ_mask = (0x01 << targ_offset);
2142 * Inquire Setup Information. This command retreives the
2143 * Wide negotiation status for recent adapters as well as
2144 * the sync info for older models.
2146 param = sizeof(setup_info);
2147 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1,
2148 (u_int8_t*)&setup_info, sizeof(setup_info),
2149 DEFAULT_CMD_TIMEOUT);
2152 device_printf(bt->dev,
2153 "btfetchtransinfo - Inquire Setup Info Failed %x\n",
2158 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset]
2159 : setup_info.high_syncinfo[targ_offset];
2161 if (sync_info.sync == 0)
2164 sync_offset = sync_info.offset;
2167 bus_width = MSG_EXT_WDTR_BUS_8_BIT;
2168 if (strcmp(bt->firmware_ver, "5.06L") >= 0) {
2172 (target < 8) ? (setup_info.low_wide_active & targ_mask)
2173 : (setup_info.high_wide_active & targ_mask);
2176 bus_width = MSG_EXT_WDTR_BUS_16_BIT;
2177 } else if ((bt->wide_permitted & targ_mask) != 0) {
2178 struct ccb_getdev cgd;
2181 * Prior to rev 5.06L, wide status isn't provided,
2182 * so we "guess" that wide transfers are in effect
2183 * if the user settings allow for wide and the inquiry
2184 * data for the device indicates that it can handle
2187 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1);
2188 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2189 xpt_action((union ccb *)&cgd);
2190 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
2191 && (cgd.inq_data.flags & SID_WBus16) != 0)
2192 bus_width = MSG_EXT_WDTR_BUS_16_BIT;
2195 if (bt->firmware_ver[0] >= '3') {
2197 * For adapters that can do fast or ultra speeds,
2198 * use the more exact Target Sync Information command.
2200 target_sync_info_data_t sync_info;
2202 param = sizeof(sync_info);
2203 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1,
2204 (u_int8_t*)&sync_info, sizeof(sync_info),
2205 DEFAULT_CMD_TIMEOUT);
2208 device_printf(bt->dev,
2209 "btfetchtransinfo - Inquire Sync "
2210 "Info Failed 0x%x\n", error);
2213 sync_period = sync_info.sync_rate[target] * 100;
2215 sync_period = 2000 + (500 * sync_info.period);
2218 cts->protocol = PROTO_SCSI;
2219 cts->protocol_version = SCSI_REV_2;
2220 cts->transport = XPORT_SPI;
2221 cts->transport_version = 2;
2223 spi->sync_period = sync_period;
2224 spi->valid |= CTS_SPI_VALID_SYNC_RATE;
2225 spi->sync_offset = sync_offset;
2226 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
2228 spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
2229 spi->bus_width = bus_width;
2231 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
2232 scsi->valid = CTS_SCSI_VALID_TQ;
2233 spi->valid |= CTS_SPI_VALID_DISC;
2237 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts);
2241 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2243 struct bt_softc* bt;
2245 bt = (struct bt_softc*)arg;
2246 bt->mailbox_physbase = segs->ds_addr;
2250 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2252 struct bt_softc* bt;
2254 bt = (struct bt_softc*)arg;
2255 bt->bt_ccb_physbase = segs->ds_addr;
2259 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2262 struct bt_softc* bt;
2264 bt = (struct bt_softc*)arg;
2265 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr;
2269 btpoll(struct cam_sim *sim)
2271 bt_intr_locked(cam_sim_softc(sim));
2275 bttimeout(void *arg)
2277 struct bt_ccb *bccb;
2279 struct bt_softc *bt;
2281 bccb = (struct bt_ccb *)arg;
2283 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr;
2284 mtx_assert(&bt->lock, MA_OWNED);
2285 xpt_print_path(ccb->ccb_h.path);
2286 printf("CCB %p - timed out\n", (void *)bccb);
2288 if ((bccb->flags & BCCB_ACTIVE) == 0) {
2289 xpt_print_path(ccb->ccb_h.path);
2290 printf("CCB %p - timed out CCB already completed\n",
2296 * In order to simplify the recovery process, we ask the XPT
2297 * layer to halt the queue of new transactions and we traverse
2298 * the list of pending CCBs and remove their timeouts. This
2299 * means that the driver attempts to clear only one error
2300 * condition at a time. In general, timeouts that occur
2301 * close together are related anyway, so there is no benefit
2302 * in attempting to handle errors in parallel. Timeouts will
2303 * be reinstated when the recovery process ends.
2305 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) {
2306 struct ccb_hdr *ccb_h;
2308 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) {
2309 xpt_freeze_simq(bt->sim, /*count*/1);
2310 bccb->flags |= BCCB_RELEASE_SIMQ;
2313 ccb_h = LIST_FIRST(&bt->pending_ccbs);
2314 while (ccb_h != NULL) {
2315 struct bt_ccb *pending_bccb;
2317 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
2318 callout_stop(&pending_bccb->timer);
2319 ccb_h = LIST_NEXT(ccb_h, sim_links.le);
2323 if ((bccb->flags & BCCB_DEVICE_RESET) != 0
2324 || bt->cur_outbox->action_code != BMBO_FREE
2325 || ((bccb->hccb.tag_enable == TRUE)
2326 && (bt->firmware_ver[0] < '5'))) {
2328 * Try a full host adapter/SCSI bus reset.
2329 * We do this only if we have already attempted
2330 * to clear the condition with a BDR, or we cannot
2331 * attempt a BDR for lack of mailbox resources
2332 * or because of faulty firmware. It turns out
2333 * that firmware versions prior to 5.xx treat BDRs
2334 * as untagged commands that cannot be sent until
2335 * all outstanding tagged commands have been processed.
2336 * This makes it somewhat difficult to use a BDR to
2337 * clear up a problem with an uncompleted tagged command.
2339 ccb->ccb_h.status = CAM_CMD_TIMEOUT;
2340 btreset(bt, /*hardreset*/TRUE);
2341 device_printf(bt->dev, "No longer in timeout\n");
2344 * Send a Bus Device Reset message:
2345 * The target that is holding up the bus may not
2346 * be the same as the one that triggered this timeout
2347 * (different commands have different timeout lengths),
2348 * but we have no way of determining this from our
2349 * timeout handler. Our strategy here is to queue a
2350 * BDR message to the target of the timed out command.
2351 * If this fails, we'll get another timeout 2 seconds
2352 * later which will attempt a bus reset.
2354 bccb->flags |= BCCB_DEVICE_RESET;
2355 callout_reset(&bccb->timer, 2 * hz, bttimeout, bccb);
2357 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET;
2359 /* No Data Transfer */
2360 bt->recovery_bccb->hccb.datain = TRUE;
2361 bt->recovery_bccb->hccb.dataout = TRUE;
2362 bt->recovery_bccb->hccb.btstat = 0;
2363 bt->recovery_bccb->hccb.sdstat = 0;
2364 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id;
2366 /* Tell the adapter about this command */
2367 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb);
2368 bt->cur_outbox->action_code = BMBO_START;
2369 bt_outb(bt, COMMAND_REG, BOP_START_MBOX);
2374 MODULE_VERSION(bt, 1);
2375 MODULE_DEPEND(bt, cam, 1, 1, 1);