2 * Copyright (c) 2001 Michael Smith
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/ciss/ciss.c,v 1.2.2.6 2003/02/18 22:27:41 ps Exp $
27 * $DragonFly: src/sys/dev/raid/ciss/ciss.c,v 1.11 2004/09/17 03:25:43 joerg Exp $
31 * Common Interface for SCSI-3 Support driver.
33 * CISS claims to provide a common interface between a generic SCSI
34 * transport and an intelligent host adapter.
36 * This driver supports CISS as defined in the document "CISS Command
37 * Interface for SCSI-3 Support Open Specification", Version 1.04,
38 * Valence Number 1, dated 20001127, produced by Compaq Computer
39 * Corporation. This document appears to be a hastily and somewhat
40 * arbitrarlily cut-down version of a larger (and probably even more
41 * chaotic and inconsistent) Compaq internal document. Various
42 * details were also gleaned from Compaq's "cciss" driver for Linux.
44 * We provide a shim layer between the CISS interface and CAM,
45 * offloading most of the queueing and being-a-disk chores onto CAM.
46 * Entry to the driver is via the PCI bus attachment (ciss_probe,
47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
49 * citizens and we have to fake up some responses to get reasonable
50 * behaviour out of them. In addition, the CISS command set is by no
51 * means adequate to support the functionality of a RAID controller,
52 * and thus the supported Compaq adapters utilise portions of the
53 * control protocol from earlier Compaq adapter families.
55 * Note that we only support the "simple" transport layer over PCI.
56 * This interface (ab)uses the I2O register set (specifically the post
57 * queues) to exchange commands with the adapter. Other interfaces
58 * are available, but we aren't supposed to know about them, and it is
59 * dubious whether they would provide major performance improvements
60 * except under extreme load.
62 * Currently the only supported CISS adapters are the Compaq Smart
63 * Array 5* series (5300, 5i, 532). Even with only three adapters,
64 * Compaq still manage to have interface variations.
67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
68 * well as Paul Saab at Yahoo! for their assistance in making this
72 #include <sys/param.h>
73 #include <sys/systm.h>
74 #include <sys/malloc.h>
75 #include <sys/kernel.h>
78 #include <sys/devicestat.h>
81 #include <bus/cam/cam.h>
82 #include <bus/cam/cam_ccb.h>
83 #include <bus/cam/cam_periph.h>
84 #include <bus/cam/cam_sim.h>
85 #include <bus/cam/cam_xpt_sim.h>
86 #include <bus/cam/scsi/scsi_all.h>
87 #include <bus/cam/scsi/scsi_message.h>
89 #include <machine/clock.h>
90 #include <machine/bus_memio.h>
91 #include <machine/bus.h>
92 #include <machine/endian.h>
93 #include <machine/resource.h>
96 #include <bus/pci/pcireg.h>
97 #include <bus/pci/pcivar.h>
103 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers");
106 static int ciss_lookup(device_t dev);
107 static int ciss_probe(device_t dev);
108 static int ciss_attach(device_t dev);
109 static int ciss_detach(device_t dev);
110 static int ciss_shutdown(device_t dev);
112 /* (de)initialisation functions, control wrappers */
113 static int ciss_init_pci(struct ciss_softc *sc);
114 static int ciss_wait_adapter(struct ciss_softc *sc);
115 static int ciss_flush_adapter(struct ciss_softc *sc);
116 static int ciss_init_requests(struct ciss_softc *sc);
117 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
118 int nseg, int error);
119 static int ciss_identify_adapter(struct ciss_softc *sc);
120 static int ciss_init_logical(struct ciss_softc *sc);
121 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
122 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
123 static int ciss_update_config(struct ciss_softc *sc);
124 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async);
125 static void ciss_accept_media_complete(struct ciss_request *cr);
126 static void ciss_free(struct ciss_softc *sc);
128 /* request submission/completion */
129 static int ciss_start(struct ciss_request *cr);
130 static void ciss_done(struct ciss_softc *sc);
131 static void ciss_intr(void *arg);
132 static void ciss_complete(struct ciss_softc *sc);
133 static int ciss_report_request(struct ciss_request *cr, int *command_status,
135 static int ciss_synch_request(struct ciss_request *cr, int timeout);
136 static int ciss_poll_request(struct ciss_request *cr, int timeout);
137 static int ciss_wait_request(struct ciss_request *cr, int timeout);
139 static int ciss_abort_request(struct ciss_request *cr);
142 /* request queueing */
143 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
144 static void ciss_preen_command(struct ciss_request *cr);
145 static void ciss_release_request(struct ciss_request *cr);
147 /* request helpers */
148 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
149 int opcode, void **bufp, size_t bufsize);
150 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
153 static int ciss_map_request(struct ciss_request *cr);
154 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
155 int nseg, int error);
156 static void ciss_unmap_request(struct ciss_request *cr);
159 static int ciss_cam_init(struct ciss_softc *sc);
160 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target);
161 static void ciss_cam_rescan_all(struct ciss_softc *sc);
162 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb);
163 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
164 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
165 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
166 static void ciss_cam_poll(struct cam_sim *sim);
167 static void ciss_cam_complete(struct ciss_request *cr);
168 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
169 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target);
170 static int ciss_name_device(struct ciss_softc *sc, int target);
172 /* periodic status monitoring */
173 static void ciss_periodic(void *arg);
174 static void ciss_notify_event(struct ciss_softc *sc);
175 static void ciss_notify_complete(struct ciss_request *cr);
176 static int ciss_notify_abort(struct ciss_softc *sc);
177 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
178 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
179 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
181 /* debugging output */
182 static void ciss_print_request(struct ciss_request *cr);
183 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
184 static const char *ciss_name_ldrive_status(int status);
185 static int ciss_decode_ldrive_status(int status);
186 static const char *ciss_name_ldrive_org(int org);
187 static const char *ciss_name_command_status(int status);
192 static device_method_t ciss_methods[] = {
193 /* Device interface */
194 DEVMETHOD(device_probe, ciss_probe),
195 DEVMETHOD(device_attach, ciss_attach),
196 DEVMETHOD(device_detach, ciss_detach),
197 DEVMETHOD(device_shutdown, ciss_shutdown),
201 static driver_t ciss_pci_driver = {
204 sizeof(struct ciss_softc)
207 static devclass_t ciss_devclass;
209 DECLARE_DUMMY_MODULE(ciss);
210 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
213 * Control device interface.
215 static d_open_t ciss_open;
216 static d_close_t ciss_close;
217 static d_ioctl_t ciss_ioctl;
219 #define CISS_CDEV_MAJOR 166
221 static struct cdevsw ciss_cdevsw = {
223 /* cmaj */ CISS_CDEV_MAJOR,
227 ciss_open, ciss_close, noread, nowrite, ciss_ioctl,
228 nopoll, nommap, nostrategy,
229 nodump, nopsize, nokqfilter
232 /************************************************************************
233 * CISS adapters amazingly don't have a defined programming interface
234 * value. (One could say some very despairing things about PCI and
235 * people just not getting the general idea.) So we are forced to
236 * stick with matching against subvendor/subdevice, and thus have to
237 * be updated for every new CISS adapter that appears.
239 #define CISS_BOARD_SA5 (1<<0)
240 #define CISS_BOARD_SA5B (1<<1)
248 } ciss_vendor_data[] = {
249 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" },
250 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" },
251 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" },
252 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" },
253 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" },
254 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" },
255 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" },
259 /************************************************************************
260 * Find a match for the device in our list of known adapters.
263 ciss_lookup(device_t dev)
267 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
268 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
269 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
275 /************************************************************************
276 * Match a known CISS adapter.
279 ciss_probe(device_t dev)
283 i = ciss_lookup(dev);
285 device_set_desc(dev, ciss_vendor_data[i].desc);
291 /************************************************************************
292 * Attach the driver to this adapter.
295 ciss_attach(device_t dev)
297 struct ciss_softc *sc;
303 /* print structure/union sizes */
304 debug_struct(ciss_command);
305 debug_struct(ciss_header);
306 debug_union(ciss_device_address);
307 debug_struct(ciss_cdb);
308 debug_struct(ciss_report_cdb);
309 debug_struct(ciss_notify_cdb);
310 debug_struct(ciss_notify);
311 debug_struct(ciss_message_cdb);
312 debug_struct(ciss_error_info_pointer);
313 debug_struct(ciss_error_info);
314 debug_struct(ciss_sg_entry);
315 debug_struct(ciss_config_table);
316 debug_struct(ciss_bmic_cdb);
317 debug_struct(ciss_bmic_id_ldrive);
318 debug_struct(ciss_bmic_id_lstatus);
319 debug_struct(ciss_bmic_id_table);
320 debug_struct(ciss_bmic_id_pdrive);
321 debug_struct(ciss_bmic_blink_pdrive);
322 debug_struct(ciss_bmic_flush_cache);
323 debug_const(CISS_MAX_REQUESTS);
324 debug_const(CISS_MAX_LOGICAL);
325 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
326 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
327 debug_const(CISS_COMMAND_ALLOC_SIZE);
328 debug_const(CISS_COMMAND_SG_LENGTH);
330 debug_type(cciss_pci_info_struct);
331 debug_type(cciss_coalint_struct);
332 debug_type(cciss_coalint_struct);
333 debug_type(NodeName_type);
334 debug_type(NodeName_type);
335 debug_type(Heartbeat_type);
336 debug_type(BusTypes_type);
337 debug_type(FirmwareVer_type);
338 debug_type(DriverVer_type);
339 debug_type(IOCTL_Command_struct);
342 sc = device_get_softc(dev);
344 callout_init(&sc->ciss_periodic);
347 * Work out adapter type.
349 i = ciss_lookup(dev);
350 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
351 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
352 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
353 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
355 /* really an error on our part */
356 ciss_printf(sc, "unable to determine hardware type\n");
362 * Do PCI-specific init.
364 if ((error = ciss_init_pci(sc)) != 0)
368 * Initialise driver queues.
372 ciss_initq_complete(sc);
375 * Initialise command/request pool.
377 if ((error = ciss_init_requests(sc)) != 0)
381 * Get adapter information.
383 if ((error = ciss_identify_adapter(sc)) != 0)
387 * Build our private table of logical devices.
389 if ((error = ciss_init_logical(sc)) != 0)
393 * Enable interrupts so that the CAM scan can complete.
395 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
398 * Initialise the CAM interface.
400 if ((error = ciss_cam_init(sc)) != 0)
404 * Start the heartbeat routine and event chain.
409 * Create the control device.
411 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev));
412 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
413 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
414 "ciss%d", device_get_unit(sc->ciss_dev));
415 sc->ciss_dev_t->si_drv1 = sc;
418 * The adapter is running; synchronous commands can now sleep
419 * waiting for an interrupt to signal completion.
421 sc->ciss_flags |= CISS_FLAG_RUNNING;
430 /************************************************************************
431 * Detach the driver from this adapter.
434 ciss_detach(device_t dev)
436 struct ciss_softc *sc = device_get_softc(dev);
440 /* flush adapter cache */
441 ciss_flush_adapter(sc);
443 /* release all resources */
450 /************************************************************************
451 * Prepare adapter for system shutdown.
454 ciss_shutdown(device_t dev)
456 struct ciss_softc *sc = device_get_softc(dev);
460 /* flush adapter cache */
461 ciss_flush_adapter(sc);
466 /************************************************************************
467 * Perform PCI-specific attachment actions.
470 ciss_init_pci(struct ciss_softc *sc)
472 uintptr_t cbase, csize, cofs;
478 * Allocate register window first (we need this to find the config
482 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
483 if ((sc->ciss_regs_resource =
484 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid,
485 0, ~0, 1, RF_ACTIVE)) == NULL) {
486 ciss_printf(sc, "can't allocate register window\n");
489 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
490 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
493 * Find the BAR holding the config structure. If it's not the one
494 * we already mapped for registers, map it too.
496 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
497 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
498 if ((sc->ciss_cfg_resource =
499 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid,
500 0, ~0, 1, RF_ACTIVE)) == NULL) {
501 ciss_printf(sc, "can't allocate config window\n");
504 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
505 csize = rman_get_end(sc->ciss_cfg_resource) -
506 rman_get_start(sc->ciss_cfg_resource) + 1;
508 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
509 csize = rman_get_end(sc->ciss_regs_resource) -
510 rman_get_start(sc->ciss_regs_resource) + 1;
512 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
515 * Use the base/size/offset values we just calculated to
516 * sanity-check the config structure. If it's OK, point to it.
518 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
519 ciss_printf(sc, "config table outside window\n");
522 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
523 debug(1, "config struct at %p", sc->ciss_cfg);
526 * Validate the config structure. If we supported other transport
527 * methods, we could select amongst them at this point in time.
529 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
530 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
531 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
532 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
535 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) ||
536 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) {
537 ciss_printf(sc, "adapter interface specification (%d) unsupported\n",
538 sc->ciss_cfg->valence);
543 * Put the board into simple mode, and tell it we're using the low
544 * 4GB of RAM. Set the default interrupt coalescing options.
546 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) {
547 ciss_printf(sc, "adapter does not support 'simple' transport layer\n");
550 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE;
551 sc->ciss_cfg->command_physlimit = 0;
552 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
553 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
555 if (ciss_update_config(sc)) {
556 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
557 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
560 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) {
562 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
563 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method);
568 * Wait for the adapter to come ready.
570 if ((error = ciss_wait_adapter(sc)) != 0)
574 * Turn off interrupts before we go routing anything.
576 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
579 * Allocate and set up our interrupt.
581 sc->ciss_irq_rid = 0;
582 if ((sc->ciss_irq_resource =
583 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1,
584 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
585 ciss_printf(sc, "can't allocate interrupt\n");
588 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc,
590 ciss_printf(sc, "can't set up interrupt\n");
595 * Allocate the parent bus DMA tag appropriate for our PCI
598 * Note that "simple" adapters can only address within a 32-bit
601 if (bus_dma_tag_create(NULL, /* parent */
602 1, 0, /* alignment, boundary */
603 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
604 BUS_SPACE_MAXADDR, /* highaddr */
605 NULL, NULL, /* filter, filterarg */
606 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
607 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
608 BUS_DMA_ALLOCNOW, /* flags */
609 &sc->ciss_parent_dmat)) {
610 ciss_printf(sc, "can't allocate parent DMA tag\n");
615 * Create DMA tag for mapping buffers into adapter-addressable
618 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
619 1, 0, /* alignment, boundary */
620 BUS_SPACE_MAXADDR, /* lowaddr */
621 BUS_SPACE_MAXADDR, /* highaddr */
622 NULL, NULL, /* filter, filterarg */
623 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
624 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
626 &sc->ciss_buffer_dmat)) {
627 ciss_printf(sc, "can't allocate buffer DMA tag\n");
633 /************************************************************************
634 * Wait for the adapter to come ready.
637 ciss_wait_adapter(struct ciss_softc *sc)
644 * Wait for the adapter to come ready.
646 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
647 ciss_printf(sc, "waiting for adapter to come ready...\n");
648 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
649 DELAY(1000000); /* one second */
651 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
659 /************************************************************************
660 * Flush the adapter cache.
663 ciss_flush_adapter(struct ciss_softc *sc)
665 struct ciss_request *cr;
666 struct ciss_bmic_flush_cache *cbfc;
667 int error, command_status;
675 * Build a BMIC request to flush the cache. We don't disable
676 * it, as we may be going to do more I/O (eg. we are emulating
677 * the Synchronise Cache command).
679 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
680 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
681 (void **)&cbfc, sizeof(*cbfc))) != 0)
685 * Submit the request and wait for it to complete.
687 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
688 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
695 ciss_report_request(cr, &command_status, NULL);
696 switch(command_status) {
697 case CISS_CMD_STATUS_SUCCESS:
700 ciss_printf(sc, "error flushing cache (%s)\n",
701 ciss_name_command_status(command_status));
708 free(cbfc, CISS_MALLOC_CLASS);
710 ciss_release_request(cr);
714 /************************************************************************
715 * Allocate memory for the adapter command structures, initialise
716 * the request structures.
718 * Note that the entire set of commands are allocated in a single
722 ciss_init_requests(struct ciss_softc *sc)
724 struct ciss_request *cr;
730 * Calculate the number of request structures/commands we are
731 * going to provide for this adapter.
733 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
735 if (1/*bootverbose*/)
736 ciss_printf(sc, "using %d of %d available commands\n",
737 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
740 * Create the DMA tag for commands.
742 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
743 1, 0, /* alignment, boundary */
744 BUS_SPACE_MAXADDR, /* lowaddr */
745 BUS_SPACE_MAXADDR, /* highaddr */
746 NULL, NULL, /* filter, filterarg */
747 CISS_COMMAND_ALLOC_SIZE *
748 sc->ciss_max_requests, 1, /* maxsize, nsegments */
749 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
751 &sc->ciss_command_dmat)) {
752 ciss_printf(sc, "can't allocate command DMA tag\n");
756 * Allocate memory and make it available for DMA.
758 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
759 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
760 ciss_printf(sc, "can't allocate command memory\n");
763 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command,
764 sizeof(struct ciss_command) * sc->ciss_max_requests,
765 ciss_command_map_helper, sc, 0);
766 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
769 * Set up the request and command structures, push requests onto
772 for (i = 1; i < sc->ciss_max_requests; i++) {
773 cr = &sc->ciss_request[i];
776 ciss_enqueue_free(cr);
782 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
784 struct ciss_softc *sc = (struct ciss_softc *)arg;
786 sc->ciss_command_phys = segs->ds_addr;
789 /************************************************************************
790 * Identify the adapter, print some information about it.
793 ciss_identify_adapter(struct ciss_softc *sc)
795 struct ciss_request *cr;
796 int error, command_status;
803 * Get a request, allocate storage for the adapter data.
805 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
806 (void **)&sc->ciss_id,
807 sizeof(*sc->ciss_id))) != 0)
811 * Submit the request and wait for it to complete.
813 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
814 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
821 ciss_report_request(cr, &command_status, NULL);
822 switch(command_status) {
823 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
825 case CISS_CMD_STATUS_DATA_UNDERRUN:
826 case CISS_CMD_STATUS_DATA_OVERRUN:
827 ciss_printf(sc, "data over/underrun reading adapter information\n");
829 ciss_printf(sc, "error reading adapter information (%s)\n",
830 ciss_name_command_status(command_status));
835 /* sanity-check reply */
836 if (!sc->ciss_id->big_map_supported) {
837 ciss_printf(sc, "adapter does not support BIG_MAP\n");
843 /* XXX later revisions may not need this */
844 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
847 /* XXX only really required for old 5300 adapters? */
848 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
850 /* print information */
851 if (1/*bootverbose*/) {
852 ciss_printf(sc, " %d logical drive%s configured\n",
853 sc->ciss_id->configured_logical_drives,
854 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
855 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
856 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
858 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
859 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
860 ciss_printf(sc, " supported I/O methods 0x%b\n",
861 sc->ciss_cfg->supported_methods,
862 "\20\1READY\2simple\3performant\4MEMQ\n");
863 ciss_printf(sc, " active I/O method 0x%b\n",
864 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
865 ciss_printf(sc, " 4G page base 0x%08x\n",
866 sc->ciss_cfg->command_physlimit);
867 ciss_printf(sc, " interrupt coalesce delay %dus\n",
868 sc->ciss_cfg->interrupt_coalesce_delay);
869 ciss_printf(sc, " interrupt coalesce count %d\n",
870 sc->ciss_cfg->interrupt_coalesce_count);
871 ciss_printf(sc, " max outstanding commands %d\n",
872 sc->ciss_cfg->max_outstanding_commands);
873 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
874 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
875 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
876 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
881 if (sc->ciss_id != NULL) {
882 free(sc->ciss_id, CISS_MALLOC_CLASS);
887 ciss_release_request(cr);
891 /************************************************************************
892 * Find logical drives on the adapter.
895 ciss_init_logical(struct ciss_softc *sc)
897 struct ciss_request *cr;
898 struct ciss_command *cc;
899 struct ciss_report_cdb *crc;
900 struct ciss_lun_report *cll;
912 * Get a request, allocate storage for the address list.
914 if ((error = ciss_get_request(sc, &cr)) != 0)
916 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address);
917 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
920 * Build the Report Logical LUNs command.
922 cc = CISS_FIND_COMMAND(cr);
924 cr->cr_length = report_size;
925 cr->cr_flags = CISS_REQ_DATAIN;
927 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
928 cc->header.address.physical.bus = 0;
929 cc->header.address.physical.target = 0;
930 cc->cdb.cdb_length = sizeof(*crc);
931 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
932 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
933 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
934 cc->cdb.timeout = 30; /* XXX better suggestions? */
936 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
937 bzero(crc, sizeof(*crc));
938 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS;
939 crc->length = htonl(report_size); /* big-endian field */
940 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
943 * Submit the request and wait for it to complete. (timeout
944 * here should be much greater than above)
946 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
947 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error);
952 * Check response. Note that data over/underrun is OK.
954 ciss_report_request(cr, &command_status, NULL);
955 switch(command_status) {
956 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
957 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
959 case CISS_CMD_STATUS_DATA_OVERRUN:
960 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n",
964 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
965 ciss_name_command_status(command_status));
969 ciss_release_request(cr);
972 /* sanity-check reply */
973 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
974 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
975 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
976 ndrives, CISS_MAX_LOGICAL);
981 * Save logical drive information.
983 if (1/*bootverbose*/)
984 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : "");
985 if (ndrives != sc->ciss_id->configured_logical_drives)
986 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n",
987 ndrives, sc->ciss_id->configured_logical_drives);
988 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
990 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */
991 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0)
994 * If the drive has had media exchanged, we should bring it online.
996 if (sc->ciss_logical[i].cl_lstatus->media_exchanged)
997 ciss_accept_media(sc, i, 0);
1000 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT;
1007 * Note that if the error is a timeout, we are taking a slight
1008 * risk here and assuming that the adapter will not respond at a
1009 * later time, scribbling over host memory.
1012 ciss_release_request(cr);
1014 free(cll, CISS_MALLOC_CLASS);
1019 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1021 struct ciss_request *cr;
1022 struct ciss_command *cc;
1023 struct scsi_inquiry *inq;
1029 lun = ld->cl_address.logical.lun;
1031 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1033 if ((error = ciss_get_request(sc, &cr)) != 0)
1036 cc = CISS_FIND_COMMAND(cr);
1037 cr->cr_data = &ld->cl_geometry;
1038 cr->cr_length = sizeof(ld->cl_geometry);
1039 cr->cr_flags = CISS_REQ_DATAIN;
1041 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
1042 cc->header.address.logical.lun = lun;
1043 cc->cdb.cdb_length = 6;
1044 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1045 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1046 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1047 cc->cdb.timeout = 30;
1049 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1050 inq->opcode = INQUIRY;
1051 inq->byte2 = SI_EVPD;
1052 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1053 inq->length = sizeof(ld->cl_geometry);
1055 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1056 ciss_printf(sc, "error getting geometry (%d)\n", error);
1060 ciss_report_request(cr, &command_status, NULL);
1061 switch(command_status) {
1062 case CISS_CMD_STATUS_SUCCESS:
1063 case CISS_CMD_STATUS_DATA_UNDERRUN:
1065 case CISS_CMD_STATUS_DATA_OVERRUN:
1066 ciss_printf(sc, "WARNING: Data overrun\n");
1069 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1070 ciss_name_command_status(command_status));
1076 ciss_release_request(cr);
1079 /************************************************************************
1080 * Identify a logical drive, initialise state related to it.
1083 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1085 struct ciss_request *cr;
1086 struct ciss_command *cc;
1087 struct ciss_bmic_cdb *cbc;
1088 int error, command_status;
1095 * Build a BMIC request to fetch the drive ID.
1097 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1098 (void **)&ld->cl_ldrive,
1099 sizeof(*ld->cl_ldrive))) != 0)
1101 cc = CISS_FIND_COMMAND(cr);
1102 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1103 cbc->log_drive = ld->cl_address.logical.lun;
1106 * Submit the request and wait for it to complete.
1108 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1109 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1116 ciss_report_request(cr, &command_status, NULL);
1117 switch(command_status) {
1118 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1120 case CISS_CMD_STATUS_DATA_UNDERRUN:
1121 case CISS_CMD_STATUS_DATA_OVERRUN:
1122 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1124 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1125 ciss_name_command_status(command_status));
1129 ciss_release_request(cr);
1133 * Build a CISS BMIC command to get the logical drive status.
1135 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1139 * Get the logical drive geometry.
1141 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1145 * Print the drive's basic characteristics.
1147 if (1/*bootverbose*/) {
1148 ciss_printf(sc, "logical drive %d: %s, %dMB ",
1149 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1150 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1151 ld->cl_ldrive->block_size));
1153 ciss_print_ldrive(sc, ld);
1157 /* make the drive not-exist */
1158 ld->cl_status = CISS_LD_NONEXISTENT;
1159 if (ld->cl_ldrive != NULL) {
1160 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1161 ld->cl_ldrive = NULL;
1163 if (ld->cl_lstatus != NULL) {
1164 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1165 ld->cl_lstatus = NULL;
1169 ciss_release_request(cr);
1174 /************************************************************************
1175 * Get status for a logical drive.
1177 * XXX should we also do this in response to Test Unit Ready?
1180 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1182 struct ciss_request *cr;
1183 struct ciss_command *cc;
1184 struct ciss_bmic_cdb *cbc;
1185 int error, command_status;
1188 * Build a CISS BMIC command to get the logical drive status.
1190 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1191 (void **)&ld->cl_lstatus,
1192 sizeof(*ld->cl_lstatus))) != 0)
1194 cc = CISS_FIND_COMMAND(cr);
1195 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1196 cbc->log_drive = ld->cl_address.logical.lun;
1199 * Submit the request and wait for it to complete.
1201 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1202 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1209 ciss_report_request(cr, &command_status, NULL);
1210 switch(command_status) {
1211 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1213 case CISS_CMD_STATUS_DATA_UNDERRUN:
1214 case CISS_CMD_STATUS_DATA_OVERRUN:
1215 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1217 ciss_printf(sc, "error reading logical drive status (%s)\n",
1218 ciss_name_command_status(command_status));
1224 * Set the drive's summary status based on the returned status.
1226 * XXX testing shows that a failed JBOD drive comes back at next
1227 * boot in "queued for expansion" mode. WTF?
1229 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1233 ciss_release_request(cr);
1237 /************************************************************************
1238 * Notify the adapter of a config update.
1241 ciss_update_config(struct ciss_softc *sc)
1247 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1248 for (i = 0; i < 1000; i++) {
1249 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1250 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1258 /************************************************************************
1259 * Accept new media into a logical drive.
1261 * XXX The drive has previously been offline; it would be good if we
1262 * could make sure it's not open right now.
1265 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async)
1267 struct ciss_request *cr;
1268 struct ciss_command *cc;
1269 struct ciss_bmic_cdb *cbc;
1272 debug(0, "bringing logical drive %d back online %ssynchronously",
1273 ldrive, async ? "a" : "");
1276 * Build a CISS BMIC command to bring the drive back online.
1278 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1281 cc = CISS_FIND_COMMAND(cr);
1282 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1283 cbc->log_drive = ldrive;
1286 * Dispatch the request asynchronously if we can't sleep waiting
1287 * for it to complete.
1290 cr->cr_complete = ciss_accept_media_complete;
1291 if ((error = ciss_start(cr)) != 0)
1296 * Submit the request and wait for it to complete.
1298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1299 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1305 * Call the completion callback manually.
1307 ciss_accept_media_complete(cr);
1312 ciss_release_request(cr);
1317 ciss_accept_media_complete(struct ciss_request *cr)
1324 ciss_report_request(cr, &command_status, NULL);
1325 switch(command_status) {
1326 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1327 /* we should get a logical drive status changed event here */
1330 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1331 ciss_name_command_status(command_status));
1334 ciss_release_request(cr);
1337 /************************************************************************
1338 * Release adapter resources.
1341 ciss_free(struct ciss_softc *sc)
1345 /* we're going away */
1346 sc->ciss_flags |= CISS_FLAG_ABORTING;
1348 /* terminate the periodic heartbeat routine */
1349 callout_stop(&sc->ciss_periodic);
1351 /* cancel the Event Notify chain */
1352 ciss_notify_abort(sc);
1354 /* free the controller data */
1355 if (sc->ciss_id != NULL)
1356 free(sc->ciss_id, CISS_MALLOC_CLASS);
1358 /* release I/O resources */
1359 if (sc->ciss_regs_resource != NULL)
1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1361 sc->ciss_regs_rid, sc->ciss_regs_resource);
1362 if (sc->ciss_cfg_resource != NULL)
1363 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1364 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1365 if (sc->ciss_intr != NULL)
1366 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1367 if (sc->ciss_irq_resource != NULL)
1368 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1369 sc->ciss_irq_rid, sc->ciss_irq_resource);
1371 /* destroy DMA tags */
1372 if (sc->ciss_parent_dmat)
1373 bus_dma_tag_destroy(sc->ciss_parent_dmat);
1374 if (sc->ciss_buffer_dmat)
1375 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1377 /* destroy command memory and DMA tag */
1378 if (sc->ciss_command != NULL) {
1379 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1380 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1382 if (sc->ciss_buffer_dmat)
1383 bus_dma_tag_destroy(sc->ciss_command_dmat);
1385 /* disconnect from CAM */
1386 if (sc->ciss_cam_sim) {
1387 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim));
1388 cam_sim_free(sc->ciss_cam_sim);
1390 if (sc->ciss_cam_devq)
1391 cam_simq_release(sc->ciss_cam_devq);
1392 /* XXX what about ciss_cam_path? */
1395 /************************************************************************
1396 * Give a command to the adapter.
1398 * Note that this uses the simple transport layer directly. If we
1399 * want to add support for other layers, we'll need a switch of some
1402 * Note that the simple transport layer has no way of refusing a
1403 * command; we only have as many request structures as the adapter
1404 * supports commands, so we don't have to check (this presumes that
1405 * the adapter can handle commands as fast as we throw them at it).
1408 ciss_start(struct ciss_request *cr)
1410 struct ciss_command *cc; /* XXX debugging only */
1413 cc = CISS_FIND_COMMAND(cr);
1414 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
1417 * Map the request's data.
1419 if ((error = ciss_map_request(cr)))
1423 ciss_print_request(cr);
1427 * Post the command to the adapter.
1429 ciss_enqueue_busy(cr);
1430 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr));
1435 /************************************************************************
1436 * Fetch completed request(s) from the adapter, queue them for
1437 * completion handling.
1439 * Note that this uses the simple transport layer directly. If we
1440 * want to add support for other layers, we'll need a switch of some
1443 * Note that the simple transport mechanism does not require any
1444 * reentrancy protection; the OPQ read is atomic. If there is a
1445 * chance of a race with something else that might move the request
1446 * off the busy list, then we will have to lock against that
1447 * (eg. timeouts, etc.)
1450 ciss_done(struct ciss_softc *sc)
1452 struct ciss_request *cr;
1453 struct ciss_command *cc;
1454 u_int32_t tag, index;
1460 * Loop quickly taking requests from the adapter and moving them
1461 * from the busy queue to the completed queue.
1466 /* see if the OPQ contains anything */
1467 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc))
1470 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
1471 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
1474 debug(2, "completed command %d%s", index,
1475 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
1476 if (index >= sc->ciss_max_requests) {
1477 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
1480 cr = &(sc->ciss_request[index]);
1481 cc = CISS_FIND_COMMAND(cr);
1482 cc->header.host_tag = tag; /* not updated by adapter */
1483 if (ciss_remove_busy(cr)) {
1484 /* assume this is garbage out of the adapter */
1485 ciss_printf(sc, "completed nonbusy request %d\n", index);
1487 ciss_enqueue_complete(cr);
1493 * Invoke completion processing. If we can defer this out of
1494 * interrupt context, that'd be good.
1500 /************************************************************************
1501 * Take an interrupt from the adapter.
1504 ciss_intr(void *arg)
1506 struct ciss_softc *sc = (struct ciss_softc *)arg;
1509 * The only interrupt we recognise indicates that there are
1510 * entries in the outbound post queue.
1515 /************************************************************************
1516 * Process completed requests.
1518 * Requests can be completed in three fashions:
1520 * - by invoking a callback function (cr_complete is non-null)
1521 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
1522 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
1525 ciss_complete(struct ciss_softc *sc)
1527 struct ciss_request *cr;
1532 * Loop taking requests off the completed queue and performing
1533 * completion processing on them.
1536 if ((cr = ciss_dequeue_complete(sc)) == NULL)
1538 ciss_unmap_request(cr);
1541 * If the request has a callback, invoke it.
1543 if (cr->cr_complete != NULL) {
1544 cr->cr_complete(cr);
1549 * If someone is sleeping on this request, wake them up.
1551 if (cr->cr_flags & CISS_REQ_SLEEP) {
1552 cr->cr_flags &= ~CISS_REQ_SLEEP;
1558 * If someone is polling this request for completion, signal.
1560 if (cr->cr_flags & CISS_REQ_POLL) {
1561 cr->cr_flags &= ~CISS_REQ_POLL;
1566 * Give up and throw the request back on the free queue. This
1567 * should never happen; resources will probably be lost.
1569 ciss_printf(sc, "WARNING: completed command with no submitter\n");
1570 ciss_enqueue_free(cr);
1574 /************************************************************************
1575 * Report on the completion status of a request, and pass back SCSI
1576 * and command status values.
1579 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status)
1581 struct ciss_command *cc;
1582 struct ciss_error_info *ce;
1586 cc = CISS_FIND_COMMAND(cr);
1587 ce = (struct ciss_error_info *)&(cc->sg[0]);
1590 * We don't consider data under/overrun an error for the Report
1591 * Logical/Physical LUNs commands.
1593 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
1594 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
1595 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) {
1596 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
1597 debug(2, "ignoring irrelevant under/overrun error");
1601 * Check the command's error bit, if clear, there's no status and
1604 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
1605 if (scsi_status != NULL)
1606 *scsi_status = SCSI_STATUS_OK;
1607 if (command_status != NULL)
1608 *command_status = CISS_CMD_STATUS_SUCCESS;
1611 if (command_status != NULL)
1612 *command_status = ce->command_status;
1613 if (scsi_status != NULL) {
1614 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
1615 *scsi_status = ce->scsi_status;
1621 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
1622 ce->command_status, ciss_name_command_status(ce->command_status),
1624 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
1625 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n",
1626 ce->additional_error_info.invalid_command.offense_size,
1627 ce->additional_error_info.invalid_command.offense_offset,
1628 ce->additional_error_info.invalid_command.offense_value);
1634 /************************************************************************
1635 * Issue a request and don't return until it's completed.
1637 * Depending on adapter status, we may poll or sleep waiting for
1641 ciss_synch_request(struct ciss_request *cr, int timeout)
1643 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
1644 return(ciss_wait_request(cr, timeout));
1646 return(ciss_poll_request(cr, timeout));
1650 /************************************************************************
1651 * Issue a request and poll for completion.
1653 * Timeout in milliseconds.
1656 ciss_poll_request(struct ciss_request *cr, int timeout)
1662 cr->cr_flags |= CISS_REQ_POLL;
1663 if ((error = ciss_start(cr)) != 0)
1667 ciss_done(cr->cr_sc);
1668 if (!(cr->cr_flags & CISS_REQ_POLL))
1671 } while (timeout-- >= 0);
1672 return(EWOULDBLOCK);
1675 /************************************************************************
1676 * Issue a request and sleep waiting for completion.
1678 * Timeout in milliseconds. Note that a spurious wakeup will reset
1682 ciss_wait_request(struct ciss_request *cr, int timeout)
1688 cr->cr_flags |= CISS_REQ_SLEEP;
1689 if ((error = ciss_start(cr)) != 0)
1693 while (cr->cr_flags & CISS_REQ_SLEEP) {
1694 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000);
1696 * On wakeup or interruption due to restartable activity, go
1697 * back and check to see if we're done.
1699 if ((error == 0) || (error == ERESTART)) {
1704 * Timeout, interrupted system call, etc.
1713 /************************************************************************
1714 * Abort a request. Note that a potential exists here to race the
1715 * request being completed; the caller must deal with this.
1718 ciss_abort_request(struct ciss_request *ar)
1720 struct ciss_request *cr;
1721 struct ciss_command *cc;
1722 struct ciss_message_cdb *cmc;
1728 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
1731 /* build the abort command */
1732 cc = CISS_FIND_COMMAND(cr);
1733 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
1734 cc->header.address.physical.target = 0;
1735 cc->header.address.physical.bus = 0;
1736 cc->cdb.cdb_length = sizeof(*cmc);
1737 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
1738 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1739 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
1740 cc->cdb.timeout = 30;
1742 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
1743 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
1744 cmc->type = CISS_MESSAGE_ABORT_TASK;
1745 cmc->abort_tag = ar->cr_tag; /* endianness?? */
1748 * Send the request and wait for a response. If we believe we
1749 * aborted the request OK, clear the flag that indicates it's
1752 error = ciss_synch_request(cr, 35 * 1000);
1754 error = ciss_report_request(cr, NULL, NULL);
1755 ciss_release_request(cr);
1762 /************************************************************************
1763 * Fetch and initialise a request
1766 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
1768 struct ciss_request *cr;
1773 * Get a request and clean it up.
1775 if ((cr = ciss_dequeue_free(sc)) == NULL)
1780 cr->cr_complete = NULL;
1782 ciss_preen_command(cr);
1788 ciss_preen_command(struct ciss_request *cr)
1790 struct ciss_command *cc;
1794 * Clean up the command structure.
1796 * Note that we set up the error_info structure here, since the
1797 * length can be overwritten by any command.
1799 cc = CISS_FIND_COMMAND(cr);
1800 cc->header.sg_in_list = 0; /* kinda inefficient this way */
1801 cc->header.sg_total = 0;
1802 cc->header.host_tag = cr->cr_tag << 2;
1803 cc->header.host_tag_zeroes = 0;
1804 cmdphys = CISS_FIND_COMMANDPHYS(cr);
1805 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
1806 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
1810 /************************************************************************
1811 * Release a request to the free list.
1814 ciss_release_request(struct ciss_request *cr)
1816 struct ciss_softc *sc;
1822 /* release the request to the free queue */
1823 ciss_requeue_free(cr);
1826 /************************************************************************
1827 * Allocate a request that will be used to send a BMIC command. Do some
1828 * of the common setup here to avoid duplicating it everywhere else.
1831 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
1832 int opcode, void **bufp, size_t bufsize)
1834 struct ciss_request *cr;
1835 struct ciss_command *cc;
1836 struct ciss_bmic_cdb *cbc;
1849 if ((error = ciss_get_request(sc, &cr)) != 0)
1853 * Allocate data storage if requested, determine the data direction.
1856 if ((bufsize > 0) && (bufp != NULL)) {
1857 if (*bufp == NULL) {
1858 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1861 dataout = 1; /* we are given a buffer, so we are writing */
1866 * Build a CISS BMIC command to get the logical drive ID.
1869 cr->cr_length = bufsize;
1871 cr->cr_flags = CISS_REQ_DATAIN;
1873 cc = CISS_FIND_COMMAND(cr);
1874 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1875 cc->header.address.physical.bus = 0;
1876 cc->header.address.physical.target = 0;
1877 cc->cdb.cdb_length = sizeof(*cbc);
1878 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1879 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1880 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
1881 cc->cdb.timeout = 0;
1883 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1884 bzero(cbc, sizeof(*cbc));
1885 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
1886 cbc->bmic_opcode = opcode;
1887 cbc->size = htons((u_int16_t)bufsize);
1892 ciss_release_request(cr);
1893 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1894 free(buf, CISS_MALLOC_CLASS);
1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1903 /************************************************************************
1904 * Handle a command passed in from userspace.
1907 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
1909 struct ciss_request *cr;
1910 struct ciss_command *cc;
1911 struct ciss_error_info *ce;
1921 if ((error = ciss_get_request(sc, &cr)) != 0)
1923 cc = CISS_FIND_COMMAND(cr);
1926 * Allocate an in-kernel databuffer if required, copy in user data.
1928 cr->cr_length = ioc->buf_size;
1929 if (ioc->buf_size > 0) {
1930 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) {
1934 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
1935 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1941 * Build the request based on the user command.
1943 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
1944 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
1946 /* XXX anything else to populate here? */
1951 if ((error = ciss_synch_request(cr, 60 * 1000))) {
1952 debug(0, "request failed - %d", error);
1957 * Copy the results back to the user.
1959 ce = (struct ciss_error_info *)&(cc->sg[0]);
1960 bcopy(ce, &ioc->error_info, sizeof(*ce));
1961 if ((ioc->buf_size > 0) &&
1962 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
1963 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1971 if ((cr != NULL) && (cr->cr_data != NULL))
1972 free(cr->cr_data, CISS_MALLOC_CLASS);
1974 ciss_release_request(cr);
1978 /************************************************************************
1979 * Map a request into bus-visible space, initialise the scatter/gather
1983 ciss_map_request(struct ciss_request *cr)
1985 struct ciss_softc *sc;
1991 /* check that mapping is necessary */
1992 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
1995 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length,
1996 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0);
1998 if (cr->cr_flags & CISS_REQ_DATAIN)
1999 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2000 if (cr->cr_flags & CISS_REQ_DATAOUT)
2001 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2003 cr->cr_flags |= CISS_REQ_MAPPED;
2008 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2010 struct ciss_command *cc;
2015 cc = (struct ciss_command *)arg;
2016 for (i = 0; i < nseg; i++) {
2017 cc->sg[i].address = segs[i].ds_addr;
2018 cc->sg[i].length = segs[i].ds_len;
2019 cc->sg[i].extension = 0;
2021 /* we leave the s/g table entirely within the command */
2022 cc->header.sg_in_list = nseg;
2023 cc->header.sg_total = nseg;
2026 /************************************************************************
2027 * Unmap a request from bus-visible space.
2030 ciss_unmap_request(struct ciss_request *cr)
2032 struct ciss_softc *sc;
2038 /* check that unmapping is necessary */
2039 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
2042 if (cr->cr_flags & CISS_REQ_DATAIN)
2043 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2044 if (cr->cr_flags & CISS_REQ_DATAOUT)
2045 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2047 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2048 cr->cr_flags &= ~CISS_REQ_MAPPED;
2051 /************************************************************************
2052 * Attach the driver to CAM.
2054 * We put all the logical drives on a single SCSI bus.
2057 ciss_cam_init(struct ciss_softc *sc)
2063 * Allocate a devq. We can reuse this for the masked physical
2064 * devices if we decide to export these as well.
2066 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) {
2067 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2074 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc,
2075 device_get_unit(sc->ciss_dev),
2076 sc->ciss_max_requests - 2,
2078 sc->ciss_cam_devq)) == NULL) {
2079 ciss_printf(sc, "can't allocate CAM SIM\n");
2084 * Register bus 0 (the 'logical drives' bus) with this SIM.
2086 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) {
2087 ciss_printf(sc, "can't register SCSI bus 0\n");
2092 * Initiate a rescan of the bus.
2094 ciss_cam_rescan_all(sc);
2099 /************************************************************************
2100 * Initiate a rescan of the 'logical devices' SIM
2103 ciss_cam_rescan_target(struct ciss_softc *sc, int target)
2109 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) {
2110 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2114 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0)
2116 ciss_printf(sc, "rescan failed (can't create path)\n");
2120 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/);
2121 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2122 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
2123 ccb->crcn.flags = CAM_FLAG_NONE;
2126 /* scan is now in progress */
2130 ciss_cam_rescan_all(struct ciss_softc *sc)
2132 return(ciss_cam_rescan_target(sc, 0));
2136 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2138 xpt_free_path(ccb->ccb_h.path);
2142 /************************************************************************
2143 * Handle requests coming from CAM
2146 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2148 struct ciss_softc *sc;
2149 struct ccb_scsiio *csio;
2152 sc = cam_sim_softc(sim);
2153 csio = (struct ccb_scsiio *)&ccb->csio;
2154 target = csio->ccb_h.target_id;
2156 switch (ccb->ccb_h.func_code) {
2158 /* perform SCSI I/O */
2160 if (!ciss_cam_action_io(sim, csio))
2164 /* perform geometry calculations */
2165 case XPT_CALC_GEOMETRY:
2167 struct ccb_calc_geometry *ccg = &ccb->ccg;
2168 struct ciss_ldrive *ld = &sc->ciss_logical[target];
2170 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2173 * Use the cached geometry settings unless the fault tolerance
2176 if (ld->cl_geometry.fault_tolerance == 0xFF) {
2177 u_int32_t secs_per_cylinder;
2180 ccg->secs_per_track = 32;
2181 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2182 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2184 ccg->heads = ld->cl_geometry.heads;
2185 ccg->secs_per_track = ld->cl_geometry.sectors;
2186 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2188 ccb->ccb_h.status = CAM_REQ_CMP;
2192 /* handle path attribute inquiry */
2195 struct ccb_pathinq *cpi = &ccb->cpi;
2197 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2199 cpi->version_num = 1;
2200 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2201 cpi->target_sprt = 0;
2203 cpi->max_target = CISS_MAX_LOGICAL;
2204 cpi->max_lun = 0; /* 'logical drive' channel only */
2205 cpi->initiator_id = CISS_MAX_LOGICAL;
2206 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2207 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
2208 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2209 cpi->unit_number = cam_sim_unit(sim);
2210 cpi->bus_id = cam_sim_bus(sim);
2211 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
2212 ccb->ccb_h.status = CAM_REQ_CMP;
2216 case XPT_GET_TRAN_SETTINGS:
2218 struct ccb_trans_settings *cts = &ccb->cts;
2221 bus = cam_sim_bus(sim);
2222 target = cts->ccb_h.target_id;
2224 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
2227 /* disconnect always OK */
2228 cts->flags |= CCB_TRANS_DISC_ENB;
2229 cts->valid |= CCB_TRANS_DISC_VALID;
2231 cts->ccb_h.status = CAM_REQ_CMP;
2235 default: /* we can't do this */
2236 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
2237 ccb->ccb_h.status = CAM_REQ_INVALID;
2244 /************************************************************************
2245 * Handle a CAM SCSI I/O request.
2248 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
2250 struct ciss_softc *sc;
2252 struct ciss_request *cr;
2253 struct ciss_command *cc;
2256 sc = cam_sim_softc(sim);
2257 bus = cam_sim_bus(sim);
2258 target = csio->ccb_h.target_id;
2260 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
2262 /* check for I/O attempt to nonexistent device */
2264 (target > CISS_MAX_LOGICAL) ||
2265 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) {
2266 debug(3, " device does not exist");
2267 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2270 /* firmware does not support commands > 10 bytes */
2271 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) {
2272 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE);
2273 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2276 /* check that the CDB pointer is not to a physical address */
2277 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
2278 debug(3, " CDB pointer is to physical address");
2279 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2282 /* if there is data transfer, it must be to/from a virtual address */
2283 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2284 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
2285 debug(3, " data pointer is to physical address");
2286 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2288 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
2289 debug(3, " data has premature s/g setup");
2290 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2294 /* abandon aborted ccbs or those that have failed validation */
2295 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2296 debug(3, "abandoning CCB due to abort/validation failure");
2300 /* handle emulation of some SCSI commands ourself */
2301 if (ciss_cam_emulate(sc, csio))
2305 * Get a request to manage this command. If we can't, return the
2306 * ccb, freeze the queue and flag so that we unfreeze it when a
2307 * request completes.
2309 if ((error = ciss_get_request(sc, &cr)) != 0) {
2310 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2311 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2316 * Build the command.
2318 cc = CISS_FIND_COMMAND(cr);
2319 cr->cr_data = csio->data_ptr;
2320 cr->cr_length = csio->dxfer_len;
2321 cr->cr_complete = ciss_cam_complete;
2322 cr->cr_private = csio;
2324 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
2325 cc->header.address.logical.lun = target;
2326 cc->cdb.cdb_length = csio->cdb_len;
2327 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2328 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
2329 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2330 cr->cr_flags = CISS_REQ_DATAOUT;
2331 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
2332 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2333 cr->cr_flags = CISS_REQ_DATAIN;
2334 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2337 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2339 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
2340 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
2341 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
2343 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
2347 * Submit the request to the adapter.
2349 * Note that this may fail if we're unable to map the request (and
2350 * if we ever learn a transport layer other than simple, may fail
2351 * if the adapter rejects the command).
2353 if ((error = ciss_start(cr)) != 0) {
2354 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2355 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2356 ciss_release_request(cr);
2363 /************************************************************************
2364 * Emulate SCSI commands the adapter doesn't handle as we might like.
2367 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
2373 target = csio->ccb_h.target_id;
2374 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
2375 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
2378 * Handle requests for volumes that don't exist. A selection timeout
2379 * is slightly better than an illegal request. Other errors might be
2382 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) {
2383 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2384 xpt_done((union ccb *)csio);
2389 * Handle requests for volumes that exist but are offline.
2391 * I/O operations should fail, everything else should work.
2393 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) {
2401 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2402 xpt_done((union ccb *)csio);
2408 /* if we have to fake Synchronise Cache */
2409 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
2412 * If this is a Synchronise Cache command, typically issued when
2413 * a device is closed, flush the adapter and complete now.
2415 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2416 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
2417 ciss_flush_adapter(sc);
2418 csio->ccb_h.status = CAM_REQ_CMP;
2419 xpt_done((union ccb *)csio);
2427 /************************************************************************
2428 * Check for possibly-completed commands.
2431 ciss_cam_poll(struct cam_sim *sim)
2433 struct ciss_softc *sc = cam_sim_softc(sim);
2440 /************************************************************************
2441 * Handle completion of a command - pass results back through the CCB
2444 ciss_cam_complete(struct ciss_request *cr)
2446 struct ciss_softc *sc;
2447 struct ciss_command *cc;
2448 struct ciss_error_info *ce;
2449 struct ccb_scsiio *csio;
2456 cc = CISS_FIND_COMMAND(cr);
2457 ce = (struct ciss_error_info *)&(cc->sg[0]);
2458 csio = (struct ccb_scsiio *)cr->cr_private;
2461 * Extract status values from request.
2463 ciss_report_request(cr, &command_status, &scsi_status);
2464 csio->scsi_status = scsi_status;
2467 * Handle specific SCSI status values.
2469 switch(scsi_status) {
2470 /* no status due to adapter error */
2472 debug(0, "adapter error");
2473 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2476 /* no status due to command completed OK */
2477 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
2478 debug(2, "SCSI_STATUS_OK");
2479 csio->ccb_h.status = CAM_REQ_CMP;
2482 /* check condition, sense data included */
2483 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
2484 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d",
2485 ce->sense_length, ce->residual_count);
2486 bzero(&csio->sense_data, SSD_FULL_SIZE);
2487 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
2488 csio->sense_len = ce->sense_length;
2489 csio->resid = ce->residual_count;
2490 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
2493 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
2494 debug(0, "sense key %x", sns->flags & SSD_KEY);
2499 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
2500 debug(0, "SCSI_STATUS_BUSY");
2501 csio->ccb_h.status = CAM_SCSI_BUSY;
2505 debug(0, "unknown status 0x%x", csio->scsi_status);
2506 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2510 /* handle post-command fixup */
2511 ciss_cam_complete_fixup(sc, csio);
2513 /* tell CAM we're ready for more commands */
2514 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
2516 xpt_done((union ccb *)csio);
2517 ciss_release_request(cr);
2520 /********************************************************************************
2521 * Fix up the result of some commands here.
2524 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
2526 struct scsi_inquiry_data *inq;
2527 struct ciss_ldrive *cl;
2530 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2531 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) {
2533 inq = (struct scsi_inquiry_data *)csio->data_ptr;
2534 target = csio->ccb_h.target_id;
2535 cl = &sc->ciss_logical[target];
2537 padstr(inq->vendor, "COMPAQ", 8);
2538 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
2539 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
2544 /********************************************************************************
2545 * Find a peripheral attached at (target)
2547 static struct cam_periph *
2548 ciss_find_periph(struct ciss_softc *sc, int target)
2550 struct cam_periph *periph;
2551 struct cam_path *path;
2554 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0);
2555 if (status == CAM_REQ_CMP) {
2556 periph = cam_periph_find(path, NULL);
2557 xpt_free_path(path);
2564 /********************************************************************************
2565 * Name the device at (target)
2567 * XXX is this strictly correct?
2570 ciss_name_device(struct ciss_softc *sc, int target)
2572 struct cam_periph *periph;
2574 if ((periph = ciss_find_periph(sc, target)) != NULL) {
2575 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number);
2578 sc->ciss_logical[target].cl_name[0] = 0;
2582 /************************************************************************
2583 * Periodic status monitoring.
2586 ciss_periodic(void *arg)
2588 struct ciss_softc *sc;
2592 sc = (struct ciss_softc *)arg;
2595 * Check the adapter heartbeat.
2597 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
2598 sc->ciss_heart_attack++;
2599 debug(0, "adapter heart attack in progress 0x%x/%d",
2600 sc->ciss_heartbeat, sc->ciss_heart_attack);
2601 if (sc->ciss_heart_attack == 3) {
2602 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
2603 /* XXX should reset adapter here */
2606 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
2607 sc->ciss_heart_attack = 0;
2608 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
2612 * If the notify event request has died for some reason, or has
2613 * not started yet, restart it.
2615 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
2616 debug(0, "(re)starting Event Notify chain");
2617 ciss_notify_event(sc);
2623 if (!(sc->ciss_flags & CISS_FLAG_ABORTING))
2624 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz,
2628 /************************************************************************
2629 * Request a notification response from the adapter.
2631 * If (cr) is NULL, this is the first request of the adapter, so
2632 * reset the adapter's message pointer and start with the oldest
2633 * message available.
2636 ciss_notify_event(struct ciss_softc *sc)
2638 struct ciss_request *cr;
2639 struct ciss_command *cc;
2640 struct ciss_notify_cdb *cnc;
2645 cr = sc->ciss_periodic_notify;
2647 /* get a request if we don't already have one */
2649 if ((error = ciss_get_request(sc, &cr)) != 0) {
2650 debug(0, "can't get notify event request");
2653 sc->ciss_periodic_notify = cr;
2654 cr->cr_complete = ciss_notify_complete;
2655 debug(1, "acquired request %d", cr->cr_tag);
2659 * Get a databuffer if we don't already have one, note that the
2660 * adapter command wants a larger buffer than the actual
2663 if (cr->cr_data == NULL) {
2664 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
2665 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2668 /* re-setup the request's command (since we never release it) XXX overkill*/
2669 ciss_preen_command(cr);
2671 /* (re)build the notify event command */
2672 cc = CISS_FIND_COMMAND(cr);
2673 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2674 cc->header.address.physical.bus = 0;
2675 cc->header.address.physical.target = 0;
2677 cc->cdb.cdb_length = sizeof(*cnc);
2678 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2679 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2680 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2681 cc->cdb.timeout = 0; /* no timeout, we hope */
2683 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2684 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
2685 cnc->opcode = CISS_OPCODE_READ;
2686 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
2687 cnc->timeout = 0; /* no timeout, we hope */
2688 cnc->synchronous = 0;
2690 cnc->seek_to_oldest = 0;
2692 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2694 /* submit the request */
2695 error = ciss_start(cr);
2700 if (cr->cr_data != NULL)
2701 free(cr->cr_data, CISS_MALLOC_CLASS);
2702 ciss_release_request(cr);
2704 sc->ciss_periodic_notify = NULL;
2705 debug(0, "can't submit notify event request");
2706 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2708 debug(1, "notify event submitted");
2709 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
2714 ciss_notify_complete(struct ciss_request *cr)
2716 struct ciss_command *cc;
2717 struct ciss_notify *cn;
2718 struct ciss_softc *sc;
2724 cc = CISS_FIND_COMMAND(cr);
2725 cn = (struct ciss_notify *)cr->cr_data;
2729 * Report request results, decode status.
2731 ciss_report_request(cr, &command_status, &scsi_status);
2734 * Abort the chain on a fatal error.
2736 * XXX which of these are actually errors?
2738 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
2739 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
2740 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
2741 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
2742 ciss_name_command_status(command_status));
2743 ciss_release_request(cr);
2744 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2749 * If the adapter gave us a text message, print it.
2751 if (cn->message[0] != 0)
2752 ciss_printf(sc, "*** %.80s\n", cn->message);
2754 debug(0, "notify event class %d subclass %d detail %d",
2755 cn->class, cn->subclass, cn->detail);
2758 * If there's room, save the event for a user-level tool.
2760 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) {
2761 sc->ciss_notify[sc->ciss_notify_head] = *cn;
2762 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS;
2766 * Some events are directly of interest to us.
2768 switch (cn->class) {
2769 case CISS_NOTIFY_LOGICAL:
2770 ciss_notify_logical(sc, cn);
2772 case CISS_NOTIFY_PHYSICAL:
2773 ciss_notify_physical(sc, cn);
2778 * If the response indicates that the notifier has been aborted,
2779 * release the notifier command.
2781 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
2782 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
2783 (cn->detail == 1)) {
2784 debug(0, "notifier exiting");
2785 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2786 ciss_release_request(cr);
2787 sc->ciss_periodic_notify = NULL;
2788 wakeup(&sc->ciss_periodic_notify);
2792 * Send a new notify event command, if we're not aborting.
2794 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
2795 ciss_notify_event(sc);
2799 /************************************************************************
2800 * Abort the Notify Event chain.
2802 * Note that we can't just abort the command in progress; we have to
2803 * explicitly issue an Abort Notify Event command in order for the
2804 * adapter to clean up correctly.
2806 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
2807 * the chain will not restart itself.
2810 ciss_notify_abort(struct ciss_softc *sc)
2812 struct ciss_request *cr;
2813 struct ciss_command *cc;
2814 struct ciss_notify_cdb *cnc;
2815 int error, s, command_status, scsi_status;
2822 /* verify that there's an outstanding command */
2823 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2826 /* get a command to issue the abort with */
2827 if ((error = ciss_get_request(sc, &cr)))
2830 /* get a buffer for the result */
2831 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
2832 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2835 cc = CISS_FIND_COMMAND(cr);
2836 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2837 cc->header.address.physical.bus = 0;
2838 cc->header.address.physical.target = 0;
2839 cc->cdb.cdb_length = sizeof(*cnc);
2840 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2841 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2842 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2843 cc->cdb.timeout = 0; /* no timeout, we hope */
2845 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2846 bzero(cnc, sizeof(*cnc));
2847 cnc->opcode = CISS_OPCODE_WRITE;
2848 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
2849 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2851 ciss_print_request(cr);
2854 * Submit the request and wait for it to complete.
2856 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2857 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
2864 ciss_report_request(cr, &command_status, &scsi_status);
2865 switch(command_status) {
2866 case CISS_CMD_STATUS_SUCCESS:
2868 case CISS_CMD_STATUS_INVALID_COMMAND:
2870 * Some older adapters don't support the CISS version of this
2871 * command. Fall back to using the BMIC version.
2873 error = ciss_notify_abort_bmic(sc);
2878 case CISS_CMD_STATUS_TARGET_STATUS:
2880 * This can happen if the adapter thinks there wasn't an outstanding
2881 * Notify Event command but we did. We clean up here.
2883 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
2884 if (sc->ciss_periodic_notify != NULL)
2885 ciss_release_request(sc->ciss_periodic_notify);
2892 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
2893 ciss_name_command_status(command_status));
2899 * Sleep waiting for the notifier command to complete. Note
2900 * that if it doesn't, we may end up in a bad situation, since
2901 * the adapter may deliver it later. Also note that the adapter
2902 * requires the Notify Event command to be cancelled in order to
2903 * maintain internal bookkeeping.
2906 while (sc->ciss_periodic_notify != NULL) {
2907 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5);
2908 if (error == EWOULDBLOCK) {
2909 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
2916 /* release the cancel request */
2918 if (cr->cr_data != NULL)
2919 free(cr->cr_data, CISS_MALLOC_CLASS);
2920 ciss_release_request(cr);
2923 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2927 /************************************************************************
2928 * Abort the Notify Event chain using a BMIC command.
2931 ciss_notify_abort_bmic(struct ciss_softc *sc)
2933 struct ciss_request *cr;
2934 int error, command_status;
2941 /* verify that there's an outstanding command */
2942 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2946 * Build a BMIC command to cancel the Notify on Event command.
2948 * Note that we are sending a CISS opcode here. Odd.
2950 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
2955 * Submit the request and wait for it to complete.
2957 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2958 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
2965 ciss_report_request(cr, &command_status, NULL);
2966 switch(command_status) {
2967 case CISS_CMD_STATUS_SUCCESS:
2970 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
2971 ciss_name_command_status(command_status));
2978 ciss_release_request(cr);
2982 /************************************************************************
2983 * Handle a notify event relating to the status of a logical drive.
2985 * XXX need to be able to defer some of these to properly handle
2986 * calling the "ID Physical drive" command, unless the 'extended'
2987 * drive IDs are always in BIG_MAP format.
2990 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
2992 struct ciss_ldrive *ld;
2997 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive];
2999 switch (cn->subclass) {
3000 case CISS_NOTIFY_LOGICAL_STATUS:
3001 switch (cn->detail) {
3003 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3004 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3005 cn->data.logical_status.logical_drive, ld->cl_name,
3006 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3007 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3008 cn->data.logical_status.spare_state,
3009 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3012 * Update our idea of the drive's status.
3014 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
3015 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3016 if (ld->cl_lstatus != NULL)
3017 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3021 * Have CAM rescan the drive if its status has changed.
3023 if (ostatus != ld->cl_status)
3024 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive);
3029 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3030 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3031 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
3032 cn->data.logical_status.logical_drive, ld->cl_name);
3033 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1);
3038 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
3039 cn->data.rebuild_aborted.logical_drive,
3040 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name,
3041 (cn->detail == 2) ? "read" : "write");
3046 case CISS_NOTIFY_LOGICAL_ERROR:
3047 if (cn->detail == 0) {
3048 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3049 cn->data.io_error.logical_drive,
3050 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name,
3051 cn->data.io_error.failure_bus,
3052 cn->data.io_error.failure_drive);
3053 /* XXX should we take the drive down at this point, or will we be told? */
3057 case CISS_NOTIFY_LOGICAL_SURFACE:
3058 if (cn->detail == 0)
3059 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
3060 cn->data.consistency_completed.logical_drive,
3061 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name);
3066 /************************************************************************
3067 * Handle a notify event relating to the status of a physical drive.
3070 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
3075 /************************************************************************
3079 ciss_print_request(struct ciss_request *cr)
3081 struct ciss_softc *sc;
3082 struct ciss_command *cc;
3086 cc = CISS_FIND_COMMAND(cr);
3088 ciss_printf(sc, "REQUEST @ %p\n", cr);
3089 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
3090 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
3091 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
3092 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
3093 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
3094 switch(cc->header.address.mode.mode) {
3095 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
3096 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
3097 ciss_printf(sc, " physical bus %d target %d\n",
3098 cc->header.address.physical.bus, cc->header.address.physical.target);
3100 case CISS_HDR_ADDRESS_MODE_LOGICAL:
3101 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
3104 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
3105 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
3106 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
3107 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
3109 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
3110 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
3111 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
3112 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
3113 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
3114 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
3115 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
3116 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
3118 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
3119 /* XXX print error info */
3121 /* since we don't use chained s/g, don't support it here */
3122 for (i = 0; i < cc->header.sg_in_list; i++) {
3124 ciss_printf(sc, " ");
3125 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
3126 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
3132 /************************************************************************
3133 * Print information about the status of a logical drive.
3136 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
3140 if (ld->cl_lstatus == NULL) {
3141 printf("does not exist\n");
3145 /* print drive status */
3146 switch(ld->cl_lstatus->status) {
3147 case CISS_LSTATUS_OK:
3150 case CISS_LSTATUS_INTERIM_RECOVERY:
3151 printf("in interim recovery mode\n");
3153 case CISS_LSTATUS_READY_RECOVERY:
3154 printf("ready to begin recovery\n");
3156 case CISS_LSTATUS_RECOVERING:
3157 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3158 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3159 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
3160 bus, target, ld->cl_lstatus->blocks_to_recover);
3162 case CISS_LSTATUS_EXPANDING:
3163 printf("being expanded, %u blocks remaining\n",
3164 ld->cl_lstatus->blocks_to_recover);
3166 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3167 printf("queued for expansion\n");
3169 case CISS_LSTATUS_FAILED:
3170 printf("queued for expansion\n");
3172 case CISS_LSTATUS_WRONG_PDRIVE:
3173 printf("wrong physical drive inserted\n");
3175 case CISS_LSTATUS_MISSING_PDRIVE:
3176 printf("missing a needed physical drive\n");
3178 case CISS_LSTATUS_BECOMING_READY:
3179 printf("becoming ready\n");
3183 /* print failed physical drives */
3184 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
3185 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
3186 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
3189 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
3190 ld->cl_lstatus->drive_failure_map[i]);
3195 /************************************************************************
3196 * Print information about the controller/driver.
3199 ciss_print_adapter(struct ciss_softc *sc)
3203 ciss_printf(sc, "ADAPTER:\n");
3204 for (i = 0; i < CISSQ_COUNT; i++) {
3205 ciss_printf(sc, "%s %d/%d\n",
3207 i == 1 ? "busy" : "complete",
3208 sc->ciss_qstat[i].q_length,
3209 sc->ciss_qstat[i].q_max);
3211 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
3212 ciss_printf(sc, "notify_head/tail %d/%d\n",
3213 sc->ciss_notify_head, sc->ciss_notify_tail);
3214 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
3215 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
3217 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
3218 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
3219 ciss_print_ldrive(sc, sc->ciss_logical + i);
3222 for (i = 1; i < sc->ciss_max_requests; i++)
3223 ciss_print_request(sc->ciss_request + i);
3231 struct ciss_softc *sc;
3233 sc = devclass_get_softc(devclass_find("ciss"), 0);
3235 printf("no ciss controllers\n");
3237 ciss_print_adapter(sc);
3242 /************************************************************************
3243 * Return a name for a logical drive status value.
3246 ciss_name_ldrive_status(int status)
3249 case CISS_LSTATUS_OK:
3251 case CISS_LSTATUS_FAILED:
3253 case CISS_LSTATUS_NOT_CONFIGURED:
3254 return("not configured");
3255 case CISS_LSTATUS_INTERIM_RECOVERY:
3256 return("interim recovery");
3257 case CISS_LSTATUS_READY_RECOVERY:
3258 return("ready for recovery");
3259 case CISS_LSTATUS_RECOVERING:
3260 return("recovering");
3261 case CISS_LSTATUS_WRONG_PDRIVE:
3262 return("wrong physical drive inserted");
3263 case CISS_LSTATUS_MISSING_PDRIVE:
3264 return("missing physical drive");
3265 case CISS_LSTATUS_EXPANDING:
3266 return("expanding");
3267 case CISS_LSTATUS_BECOMING_READY:
3268 return("becoming ready");
3269 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3270 return("queued for expansion");
3272 return("unknown status");
3275 /************************************************************************
3276 * Return an online/offline/nonexistent value for a logical drive
3280 ciss_decode_ldrive_status(int status)
3283 case CISS_LSTATUS_NOT_CONFIGURED:
3284 return(CISS_LD_NONEXISTENT);
3286 case CISS_LSTATUS_OK:
3287 case CISS_LSTATUS_INTERIM_RECOVERY:
3288 case CISS_LSTATUS_READY_RECOVERY:
3289 case CISS_LSTATUS_RECOVERING:
3290 case CISS_LSTATUS_EXPANDING:
3291 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3292 return(CISS_LD_ONLINE);
3294 case CISS_LSTATUS_FAILED:
3295 case CISS_LSTATUS_WRONG_PDRIVE:
3296 case CISS_LSTATUS_MISSING_PDRIVE:
3297 case CISS_LSTATUS_BECOMING_READY:
3299 return(CISS_LD_OFFLINE);
3304 /************************************************************************
3305 * Return a name for a logical drive's organisation.
3308 ciss_name_ldrive_org(int org)
3311 case CISS_LDRIVE_RAID0:
3313 case CISS_LDRIVE_RAID1:
3315 case CISS_LDRIVE_RAID4:
3317 case CISS_LDRIVE_RAID5:
3323 /************************************************************************
3324 * Return a name for a command status value.
3327 ciss_name_command_status(int status)
3330 case CISS_CMD_STATUS_SUCCESS:
3332 case CISS_CMD_STATUS_TARGET_STATUS:
3333 return("target status");
3334 case CISS_CMD_STATUS_DATA_UNDERRUN:
3335 return("data underrun");
3336 case CISS_CMD_STATUS_DATA_OVERRUN:
3337 return("data overrun");
3338 case CISS_CMD_STATUS_INVALID_COMMAND:
3339 return("invalid command");
3340 case CISS_CMD_STATUS_PROTOCOL_ERROR:
3341 return("protocol error");
3342 case CISS_CMD_STATUS_HARDWARE_ERROR:
3343 return("hardware error");
3344 case CISS_CMD_STATUS_CONNECTION_LOST:
3345 return("connection lost");
3346 case CISS_CMD_STATUS_ABORTED:
3348 case CISS_CMD_STATUS_ABORT_FAILED:
3349 return("abort failed");
3350 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
3351 return("unsolicited abort");
3352 case CISS_CMD_STATUS_TIMEOUT:
3354 case CISS_CMD_STATUS_UNABORTABLE:
3355 return("unabortable");
3357 return("unknown status");
3360 /************************************************************************
3361 * Handle an open on the control device.
3364 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p)
3366 struct ciss_softc *sc;
3370 sc = (struct ciss_softc *)dev->si_drv1;
3372 /* we might want to veto if someone already has us open */
3374 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
3378 /************************************************************************
3379 * Handle the last close on the control device.
3382 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p)
3384 struct ciss_softc *sc;
3388 sc = (struct ciss_softc *)dev->si_drv1;
3390 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
3394 /********************************************************************************
3395 * Handle adapter-specific control operations.
3397 * Note that the API here is compatible with the Linux driver, in order to
3398 * simplify the porting of Compaq's userland tools.
3401 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p)
3403 struct ciss_softc *sc;
3408 sc = (struct ciss_softc *)dev->si_drv1;
3412 case CCISS_GETPCIINFO:
3414 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
3416 pis->bus = pci_get_bus(sc->ciss_dev);
3417 pis->dev_fn = pci_get_slot(sc->ciss_dev);
3418 pis->board_id = pci_get_devid(sc->ciss_dev);
3423 case CCISS_GETINTINFO:
3425 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3427 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
3428 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
3433 case CCISS_SETINTINFO:
3435 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3437 if ((cis->delay == 0) && (cis->count == 0)) {
3443 * XXX apparently this is only safe if the controller is idle,
3444 * we should suspend it before doing this.
3446 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
3447 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
3449 if (ciss_update_config(sc))
3452 /* XXX resume the controller here */
3456 case CCISS_GETNODENAME:
3457 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
3458 sizeof(NodeName_type));
3461 case CCISS_SETNODENAME:
3462 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
3463 sizeof(NodeName_type));
3464 if (ciss_update_config(sc))
3468 case CCISS_GETHEARTBEAT:
3469 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
3472 case CCISS_GETBUSTYPES:
3473 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
3476 case CCISS_GETFIRMVER:
3477 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
3478 sizeof(FirmwareVer_type));
3481 case CCISS_GETDRIVERVER:
3482 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
3485 case CCISS_REVALIDVOLS:
3487 * This is a bit ugly; to do it "right" we really need
3488 * to find any disks that have changed, kick CAM off them,
3489 * then rescan only these disks. It'd be nice if they
3490 * a) told us which disk(s) they were going to play with,
3491 * and b) which ones had arrived. 8(
3495 case CCISS_PASSTHRU:
3496 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr);
3500 debug(0, "unknown ioctl 0x%lx", cmd);
3502 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
3503 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
3504 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
3505 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
3506 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
3507 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
3508 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
3509 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
3510 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
3511 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
3512 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);