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 1.2 2003/06/17 04:28:23 dillon 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>
82 #include <cam/cam_ccb.h>
83 #include <cam/cam_periph.h>
84 #include <cam/cam_sim.h>
85 #include <cam/cam_xpt_sim.h>
86 #include <cam/scsi/scsi_all.h>
87 #include <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 <pci/pcireg.h>
97 #include <pci/pcivar.h>
99 #include <dev/ciss/cissreg.h>
100 #include <dev/ciss/cissvar.h>
101 #include <dev/ciss/cissio.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;
208 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
211 * Control device interface.
213 static d_open_t ciss_open;
214 static d_close_t ciss_close;
215 static d_ioctl_t ciss_ioctl;
217 #define CISS_CDEV_MAJOR 166
219 static struct cdevsw ciss_cdevsw = {
220 ciss_open, ciss_close, noread, nowrite, ciss_ioctl,
221 nopoll, nommap, nostrategy, "ciss", CISS_CDEV_MAJOR,
222 nodump, nopsize, 0, nokqfilter
225 /************************************************************************
226 * CISS adapters amazingly don't have a defined programming interface
227 * value. (One could say some very despairing things about PCI and
228 * people just not getting the general idea.) So we are forced to
229 * stick with matching against subvendor/subdevice, and thus have to
230 * be updated for every new CISS adapter that appears.
232 #define CISS_BOARD_SA5 (1<<0)
233 #define CISS_BOARD_SA5B (1<<1)
241 } ciss_vendor_data[] = {
242 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" },
243 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" },
244 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" },
245 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" },
246 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" },
247 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" },
248 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" },
252 /************************************************************************
253 * Find a match for the device in our list of known adapters.
256 ciss_lookup(device_t dev)
260 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
261 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
262 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
268 /************************************************************************
269 * Match a known CISS adapter.
272 ciss_probe(device_t dev)
276 i = ciss_lookup(dev);
278 device_set_desc(dev, ciss_vendor_data[i].desc);
284 /************************************************************************
285 * Attach the driver to this adapter.
288 ciss_attach(device_t dev)
290 struct ciss_softc *sc;
296 /* print structure/union sizes */
297 debug_struct(ciss_command);
298 debug_struct(ciss_header);
299 debug_union(ciss_device_address);
300 debug_struct(ciss_cdb);
301 debug_struct(ciss_report_cdb);
302 debug_struct(ciss_notify_cdb);
303 debug_struct(ciss_notify);
304 debug_struct(ciss_message_cdb);
305 debug_struct(ciss_error_info_pointer);
306 debug_struct(ciss_error_info);
307 debug_struct(ciss_sg_entry);
308 debug_struct(ciss_config_table);
309 debug_struct(ciss_bmic_cdb);
310 debug_struct(ciss_bmic_id_ldrive);
311 debug_struct(ciss_bmic_id_lstatus);
312 debug_struct(ciss_bmic_id_table);
313 debug_struct(ciss_bmic_id_pdrive);
314 debug_struct(ciss_bmic_blink_pdrive);
315 debug_struct(ciss_bmic_flush_cache);
316 debug_const(CISS_MAX_REQUESTS);
317 debug_const(CISS_MAX_LOGICAL);
318 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
319 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
320 debug_const(CISS_COMMAND_ALLOC_SIZE);
321 debug_const(CISS_COMMAND_SG_LENGTH);
323 debug_type(cciss_pci_info_struct);
324 debug_type(cciss_coalint_struct);
325 debug_type(cciss_coalint_struct);
326 debug_type(NodeName_type);
327 debug_type(NodeName_type);
328 debug_type(Heartbeat_type);
329 debug_type(BusTypes_type);
330 debug_type(FirmwareVer_type);
331 debug_type(DriverVer_type);
332 debug_type(IOCTL_Command_struct);
335 sc = device_get_softc(dev);
339 * Work out adapter type.
341 i = ciss_lookup(dev);
342 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
343 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
344 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
345 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
347 /* really an error on our part */
348 ciss_printf(sc, "unable to determine hardware type\n");
354 * Do PCI-specific init.
356 if ((error = ciss_init_pci(sc)) != 0)
360 * Initialise driver queues.
364 ciss_initq_complete(sc);
367 * Initialise command/request pool.
369 if ((error = ciss_init_requests(sc)) != 0)
373 * Get adapter information.
375 if ((error = ciss_identify_adapter(sc)) != 0)
379 * Build our private table of logical devices.
381 if ((error = ciss_init_logical(sc)) != 0)
385 * Enable interrupts so that the CAM scan can complete.
387 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
390 * Initialise the CAM interface.
392 if ((error = ciss_cam_init(sc)) != 0)
396 * Start the heartbeat routine and event chain.
401 * Create the control device.
403 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
404 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
405 "ciss%d", device_get_unit(sc->ciss_dev));
406 sc->ciss_dev_t->si_drv1 = sc;
409 * The adapter is running; synchronous commands can now sleep
410 * waiting for an interrupt to signal completion.
412 sc->ciss_flags |= CISS_FLAG_RUNNING;
421 /************************************************************************
422 * Detach the driver from this adapter.
425 ciss_detach(device_t dev)
427 struct ciss_softc *sc = device_get_softc(dev);
431 /* flush adapter cache */
432 ciss_flush_adapter(sc);
434 /* release all resources */
441 /************************************************************************
442 * Prepare adapter for system shutdown.
445 ciss_shutdown(device_t dev)
447 struct ciss_softc *sc = device_get_softc(dev);
451 /* flush adapter cache */
452 ciss_flush_adapter(sc);
457 /************************************************************************
458 * Perform PCI-specific attachment actions.
461 ciss_init_pci(struct ciss_softc *sc)
463 uintptr_t cbase, csize, cofs;
469 * Allocate register window first (we need this to find the config
473 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
474 if ((sc->ciss_regs_resource =
475 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid,
476 0, ~0, 1, RF_ACTIVE)) == NULL) {
477 ciss_printf(sc, "can't allocate register window\n");
480 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
481 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
484 * Find the BAR holding the config structure. If it's not the one
485 * we already mapped for registers, map it too.
487 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
488 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
489 if ((sc->ciss_cfg_resource =
490 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid,
491 0, ~0, 1, RF_ACTIVE)) == NULL) {
492 ciss_printf(sc, "can't allocate config window\n");
495 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
496 csize = rman_get_end(sc->ciss_cfg_resource) -
497 rman_get_start(sc->ciss_cfg_resource) + 1;
499 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
500 csize = rman_get_end(sc->ciss_regs_resource) -
501 rman_get_start(sc->ciss_regs_resource) + 1;
503 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
506 * Use the base/size/offset values we just calculated to
507 * sanity-check the config structure. If it's OK, point to it.
509 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
510 ciss_printf(sc, "config table outside window\n");
513 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
514 debug(1, "config struct at %p", sc->ciss_cfg);
517 * Validate the config structure. If we supported other transport
518 * methods, we could select amongst them at this point in time.
520 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
521 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
522 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
523 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
526 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) ||
527 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) {
528 ciss_printf(sc, "adapter interface specification (%d) unsupported\n",
529 sc->ciss_cfg->valence);
534 * Put the board into simple mode, and tell it we're using the low
535 * 4GB of RAM. Set the default interrupt coalescing options.
537 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) {
538 ciss_printf(sc, "adapter does not support 'simple' transport layer\n");
541 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE;
542 sc->ciss_cfg->command_physlimit = 0;
543 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
544 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
546 if (ciss_update_config(sc)) {
547 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
548 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
551 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) {
553 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
554 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method);
559 * Wait for the adapter to come ready.
561 if ((error = ciss_wait_adapter(sc)) != 0)
565 * Turn off interrupts before we go routing anything.
567 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
570 * Allocate and set up our interrupt.
572 sc->ciss_irq_rid = 0;
573 if ((sc->ciss_irq_resource =
574 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1,
575 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
576 ciss_printf(sc, "can't allocate interrupt\n");
579 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc,
581 ciss_printf(sc, "can't set up interrupt\n");
586 * Allocate the parent bus DMA tag appropriate for our PCI
589 * Note that "simple" adapters can only address within a 32-bit
592 if (bus_dma_tag_create(NULL, /* parent */
593 1, 0, /* alignment, boundary */
594 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
595 BUS_SPACE_MAXADDR, /* highaddr */
596 NULL, NULL, /* filter, filterarg */
597 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
598 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
599 BUS_DMA_ALLOCNOW, /* flags */
600 &sc->ciss_parent_dmat)) {
601 ciss_printf(sc, "can't allocate parent DMA tag\n");
606 * Create DMA tag for mapping buffers into adapter-addressable
609 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
610 1, 0, /* alignment, boundary */
611 BUS_SPACE_MAXADDR, /* lowaddr */
612 BUS_SPACE_MAXADDR, /* highaddr */
613 NULL, NULL, /* filter, filterarg */
614 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
615 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
617 &sc->ciss_buffer_dmat)) {
618 ciss_printf(sc, "can't allocate buffer DMA tag\n");
624 /************************************************************************
625 * Wait for the adapter to come ready.
628 ciss_wait_adapter(struct ciss_softc *sc)
635 * Wait for the adapter to come ready.
637 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
638 ciss_printf(sc, "waiting for adapter to come ready...\n");
639 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
640 DELAY(1000000); /* one second */
642 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
650 /************************************************************************
651 * Flush the adapter cache.
654 ciss_flush_adapter(struct ciss_softc *sc)
656 struct ciss_request *cr;
657 struct ciss_bmic_flush_cache *cbfc;
658 int error, command_status;
666 * Build a BMIC request to flush the cache. We don't disable
667 * it, as we may be going to do more I/O (eg. we are emulating
668 * the Synchronise Cache command).
670 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
674 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
675 (void **)&cbfc, sizeof(*cbfc))) != 0)
679 * Submit the request and wait for it to complete.
681 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
682 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
689 ciss_report_request(cr, &command_status, NULL);
690 switch(command_status) {
691 case CISS_CMD_STATUS_SUCCESS:
694 ciss_printf(sc, "error flushing cache (%s)\n",
695 ciss_name_command_status(command_status));
702 free(cbfc, CISS_MALLOC_CLASS);
704 ciss_release_request(cr);
708 /************************************************************************
709 * Allocate memory for the adapter command structures, initialise
710 * the request structures.
712 * Note that the entire set of commands are allocated in a single
716 ciss_init_requests(struct ciss_softc *sc)
718 struct ciss_request *cr;
724 * Calculate the number of request structures/commands we are
725 * going to provide for this adapter.
727 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
729 if (1/*bootverbose*/)
730 ciss_printf(sc, "using %d of %d available commands\n",
731 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
734 * Create the DMA tag for commands.
736 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
737 1, 0, /* alignment, boundary */
738 BUS_SPACE_MAXADDR, /* lowaddr */
739 BUS_SPACE_MAXADDR, /* highaddr */
740 NULL, NULL, /* filter, filterarg */
741 CISS_COMMAND_ALLOC_SIZE *
742 sc->ciss_max_requests, 1, /* maxsize, nsegments */
743 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
745 &sc->ciss_command_dmat)) {
746 ciss_printf(sc, "can't allocate command DMA tag\n");
750 * Allocate memory and make it available for DMA.
752 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
753 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
754 ciss_printf(sc, "can't allocate command memory\n");
757 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command,
758 sizeof(struct ciss_command) * sc->ciss_max_requests,
759 ciss_command_map_helper, sc, 0);
760 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
763 * Set up the request and command structures, push requests onto
766 for (i = 1; i < sc->ciss_max_requests; i++) {
767 cr = &sc->ciss_request[i];
770 ciss_enqueue_free(cr);
776 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
778 struct ciss_softc *sc = (struct ciss_softc *)arg;
780 sc->ciss_command_phys = segs->ds_addr;
783 /************************************************************************
784 * Identify the adapter, print some information about it.
787 ciss_identify_adapter(struct ciss_softc *sc)
789 struct ciss_request *cr;
790 int error, command_status;
797 * Get a request, allocate storage for the adapter data.
799 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
800 (void **)&sc->ciss_id,
801 sizeof(*sc->ciss_id))) != 0)
805 * Submit the request and wait for it to complete.
807 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
808 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
815 ciss_report_request(cr, &command_status, NULL);
816 switch(command_status) {
817 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
819 case CISS_CMD_STATUS_DATA_UNDERRUN:
820 case CISS_CMD_STATUS_DATA_OVERRUN:
821 ciss_printf(sc, "data over/underrun reading adapter information\n");
823 ciss_printf(sc, "error reading adapter information (%s)\n",
824 ciss_name_command_status(command_status));
829 /* sanity-check reply */
830 if (!sc->ciss_id->big_map_supported) {
831 ciss_printf(sc, "adapter does not support BIG_MAP\n");
837 /* XXX later revisions may not need this */
838 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
841 /* XXX only really required for old 5300 adapters? */
842 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
844 /* print information */
845 if (1/*bootverbose*/) {
846 ciss_printf(sc, " %d logical drive%s configured\n",
847 sc->ciss_id->configured_logical_drives,
848 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
849 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
850 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
852 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
853 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
854 ciss_printf(sc, " supported I/O methods 0x%b\n",
855 sc->ciss_cfg->supported_methods,
856 "\20\1READY\2simple\3performant\4MEMQ\n");
857 ciss_printf(sc, " active I/O method 0x%b\n",
858 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
859 ciss_printf(sc, " 4G page base 0x%08x\n",
860 sc->ciss_cfg->command_physlimit);
861 ciss_printf(sc, " interrupt coalesce delay %dus\n",
862 sc->ciss_cfg->interrupt_coalesce_delay);
863 ciss_printf(sc, " interrupt coalesce count %d\n",
864 sc->ciss_cfg->interrupt_coalesce_count);
865 ciss_printf(sc, " max outstanding commands %d\n",
866 sc->ciss_cfg->max_outstanding_commands);
867 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
868 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
869 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
870 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
875 if (sc->ciss_id != NULL) {
876 free(sc->ciss_id, CISS_MALLOC_CLASS);
881 ciss_release_request(cr);
885 /************************************************************************
886 * Find logical drives on the adapter.
889 ciss_init_logical(struct ciss_softc *sc)
891 struct ciss_request *cr;
892 struct ciss_command *cc;
893 struct ciss_report_cdb *crc;
894 struct ciss_lun_report *cll;
906 * Get a request, allocate storage for the address list.
908 if ((error = ciss_get_request(sc, &cr)) != 0)
910 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address);
911 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
912 ciss_printf(sc, "can't allocate memory for logical drive list\n");
918 * Build the Report Logical LUNs command.
920 cc = CISS_FIND_COMMAND(cr);
922 cr->cr_length = report_size;
923 cr->cr_flags = CISS_REQ_DATAIN;
925 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
926 cc->header.address.physical.bus = 0;
927 cc->header.address.physical.target = 0;
928 cc->cdb.cdb_length = sizeof(*crc);
929 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
930 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
931 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
932 cc->cdb.timeout = 30; /* XXX better suggestions? */
934 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
935 bzero(crc, sizeof(*crc));
936 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS;
937 crc->length = htonl(report_size); /* big-endian field */
938 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
941 * Submit the request and wait for it to complete. (timeout
942 * here should be much greater than above)
944 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
945 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error);
950 * Check response. Note that data over/underrun is OK.
952 ciss_report_request(cr, &command_status, NULL);
953 switch(command_status) {
954 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
955 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
957 case CISS_CMD_STATUS_DATA_OVERRUN:
958 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n",
962 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
963 ciss_name_command_status(command_status));
967 ciss_release_request(cr);
970 /* sanity-check reply */
971 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
972 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
973 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
974 ndrives, CISS_MAX_LOGICAL);
979 * Save logical drive information.
981 if (1/*bootverbose*/)
982 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : "");
983 if (ndrives != sc->ciss_id->configured_logical_drives)
984 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n",
985 ndrives, sc->ciss_id->configured_logical_drives);
986 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
988 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */
989 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0)
992 * If the drive has had media exchanged, we should bring it online.
994 if (sc->ciss_logical[i].cl_lstatus->media_exchanged)
995 ciss_accept_media(sc, i, 0);
998 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT;
1005 * Note that if the error is a timeout, we are taking a slight
1006 * risk here and assuming that the adapter will not respond at a
1007 * later time, scribbling over host memory.
1010 ciss_release_request(cr);
1012 free(cll, CISS_MALLOC_CLASS);
1017 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1019 struct ciss_request *cr;
1020 struct ciss_command *cc;
1021 struct scsi_inquiry *inq;
1027 lun = ld->cl_address.logical.lun;
1029 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1031 if ((error = ciss_get_request(sc, &cr)) != 0)
1034 cc = CISS_FIND_COMMAND(cr);
1035 cr->cr_data = &ld->cl_geometry;
1036 cr->cr_length = sizeof(ld->cl_geometry);
1037 cr->cr_flags = CISS_REQ_DATAIN;
1039 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
1040 cc->header.address.logical.lun = lun;
1041 cc->cdb.cdb_length = 6;
1042 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1043 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1044 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1045 cc->cdb.timeout = 30;
1047 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1048 inq->opcode = INQUIRY;
1049 inq->byte2 = SI_EVPD;
1050 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1051 inq->length = sizeof(ld->cl_geometry);
1053 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1054 ciss_printf(sc, "error getting geometry (%d)\n", error);
1058 ciss_report_request(cr, &command_status, NULL);
1059 switch(command_status) {
1060 case CISS_CMD_STATUS_SUCCESS:
1061 case CISS_CMD_STATUS_DATA_UNDERRUN:
1063 case CISS_CMD_STATUS_DATA_OVERRUN:
1064 ciss_printf(sc, "WARNING: Data overrun\n");
1067 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1068 ciss_name_command_status(command_status));
1074 ciss_release_request(cr);
1077 /************************************************************************
1078 * Identify a logical drive, initialise state related to it.
1081 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1083 struct ciss_request *cr;
1084 struct ciss_command *cc;
1085 struct ciss_bmic_cdb *cbc;
1086 int error, command_status;
1093 * Build a BMIC request to fetch the drive ID.
1095 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1096 (void **)&ld->cl_ldrive,
1097 sizeof(*ld->cl_ldrive))) != 0)
1099 cc = CISS_FIND_COMMAND(cr);
1100 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1101 cbc->log_drive = ld->cl_address.logical.lun;
1104 * Submit the request and wait for it to complete.
1106 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1107 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1114 ciss_report_request(cr, &command_status, NULL);
1115 switch(command_status) {
1116 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1118 case CISS_CMD_STATUS_DATA_UNDERRUN:
1119 case CISS_CMD_STATUS_DATA_OVERRUN:
1120 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1122 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1123 ciss_name_command_status(command_status));
1127 ciss_release_request(cr);
1131 * Build a CISS BMIC command to get the logical drive status.
1133 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1137 * Get the logical drive geometry.
1139 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1143 * Print the drive's basic characteristics.
1145 if (1/*bootverbose*/) {
1146 ciss_printf(sc, "logical drive %d: %s, %dMB ",
1147 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1148 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1149 ld->cl_ldrive->block_size));
1151 ciss_print_ldrive(sc, ld);
1155 /* make the drive not-exist */
1156 ld->cl_status = CISS_LD_NONEXISTENT;
1157 if (ld->cl_ldrive != NULL) {
1158 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1159 ld->cl_ldrive = NULL;
1161 if (ld->cl_lstatus != NULL) {
1162 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1163 ld->cl_lstatus = NULL;
1167 ciss_release_request(cr);
1172 /************************************************************************
1173 * Get status for a logical drive.
1175 * XXX should we also do this in response to Test Unit Ready?
1178 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1180 struct ciss_request *cr;
1181 struct ciss_command *cc;
1182 struct ciss_bmic_cdb *cbc;
1183 int error, command_status;
1186 * Build a CISS BMIC command to get the logical drive status.
1188 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1189 (void **)&ld->cl_lstatus,
1190 sizeof(*ld->cl_lstatus))) != 0)
1192 cc = CISS_FIND_COMMAND(cr);
1193 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1194 cbc->log_drive = ld->cl_address.logical.lun;
1197 * Submit the request and wait for it to complete.
1199 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1200 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1207 ciss_report_request(cr, &command_status, NULL);
1208 switch(command_status) {
1209 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1211 case CISS_CMD_STATUS_DATA_UNDERRUN:
1212 case CISS_CMD_STATUS_DATA_OVERRUN:
1213 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1215 ciss_printf(sc, "error reading logical drive status (%s)\n",
1216 ciss_name_command_status(command_status));
1222 * Set the drive's summary status based on the returned status.
1224 * XXX testing shows that a failed JBOD drive comes back at next
1225 * boot in "queued for expansion" mode. WTF?
1227 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1231 ciss_release_request(cr);
1235 /************************************************************************
1236 * Notify the adapter of a config update.
1239 ciss_update_config(struct ciss_softc *sc)
1245 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1246 for (i = 0; i < 1000; i++) {
1247 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1248 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1256 /************************************************************************
1257 * Accept new media into a logical drive.
1259 * XXX The drive has previously been offline; it would be good if we
1260 * could make sure it's not open right now.
1263 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async)
1265 struct ciss_request *cr;
1266 struct ciss_command *cc;
1267 struct ciss_bmic_cdb *cbc;
1270 debug(0, "bringing logical drive %d back online %ssynchronously",
1271 ldrive, async ? "a" : "");
1274 * Build a CISS BMIC command to bring the drive back online.
1276 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1279 cc = CISS_FIND_COMMAND(cr);
1280 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1281 cbc->log_drive = ldrive;
1284 * Dispatch the request asynchronously if we can't sleep waiting
1285 * for it to complete.
1288 cr->cr_complete = ciss_accept_media_complete;
1289 if ((error = ciss_start(cr)) != 0)
1294 * Submit the request and wait for it to complete.
1296 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1297 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1303 * Call the completion callback manually.
1305 ciss_accept_media_complete(cr);
1310 ciss_release_request(cr);
1315 ciss_accept_media_complete(struct ciss_request *cr)
1322 ciss_report_request(cr, &command_status, NULL);
1323 switch(command_status) {
1324 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1325 /* we should get a logical drive status changed event here */
1328 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1329 ciss_name_command_status(command_status));
1332 ciss_release_request(cr);
1335 /************************************************************************
1336 * Release adapter resources.
1339 ciss_free(struct ciss_softc *sc)
1343 /* we're going away */
1344 sc->ciss_flags |= CISS_FLAG_ABORTING;
1346 /* terminate the periodic heartbeat routine */
1347 untimeout(ciss_periodic, sc, sc->ciss_periodic);
1349 /* cancel the Event Notify chain */
1350 ciss_notify_abort(sc);
1352 /* free the controller data */
1353 if (sc->ciss_id != NULL)
1354 free(sc->ciss_id, CISS_MALLOC_CLASS);
1356 /* release I/O resources */
1357 if (sc->ciss_regs_resource != NULL)
1358 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1359 sc->ciss_regs_rid, sc->ciss_regs_resource);
1360 if (sc->ciss_cfg_resource != NULL)
1361 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1362 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1363 if (sc->ciss_intr != NULL)
1364 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1365 if (sc->ciss_irq_resource != NULL)
1366 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1367 sc->ciss_irq_rid, sc->ciss_irq_resource);
1369 /* destroy DMA tags */
1370 if (sc->ciss_parent_dmat)
1371 bus_dma_tag_destroy(sc->ciss_parent_dmat);
1372 if (sc->ciss_buffer_dmat)
1373 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1375 /* destroy command memory and DMA tag */
1376 if (sc->ciss_command != NULL) {
1377 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1378 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1380 if (sc->ciss_buffer_dmat)
1381 bus_dma_tag_destroy(sc->ciss_command_dmat);
1383 /* disconnect from CAM */
1384 if (sc->ciss_cam_sim) {
1385 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim));
1386 cam_sim_free(sc->ciss_cam_sim, 0);
1388 if (sc->ciss_cam_devq)
1389 cam_simq_free(sc->ciss_cam_devq);
1390 /* XXX what about ciss_cam_path? */
1393 /************************************************************************
1394 * Give a command to the adapter.
1396 * Note that this uses the simple transport layer directly. If we
1397 * want to add support for other layers, we'll need a switch of some
1400 * Note that the simple transport layer has no way of refusing a
1401 * command; we only have as many request structures as the adapter
1402 * supports commands, so we don't have to check (this presumes that
1403 * the adapter can handle commands as fast as we throw them at it).
1406 ciss_start(struct ciss_request *cr)
1408 struct ciss_command *cc; /* XXX debugging only */
1411 cc = CISS_FIND_COMMAND(cr);
1412 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
1415 * Map the request's data.
1417 if ((error = ciss_map_request(cr)))
1421 ciss_print_request(cr);
1425 * Post the command to the adapter.
1427 ciss_enqueue_busy(cr);
1428 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr));
1433 /************************************************************************
1434 * Fetch completed request(s) from the adapter, queue them for
1435 * completion handling.
1437 * Note that this uses the simple transport layer directly. If we
1438 * want to add support for other layers, we'll need a switch of some
1441 * Note that the simple transport mechanism does not require any
1442 * reentrancy protection; the OPQ read is atomic. If there is a
1443 * chance of a race with something else that might move the request
1444 * off the busy list, then we will have to lock against that
1445 * (eg. timeouts, etc.)
1448 ciss_done(struct ciss_softc *sc)
1450 struct ciss_request *cr;
1451 struct ciss_command *cc;
1452 u_int32_t tag, index;
1458 * Loop quickly taking requests from the adapter and moving them
1459 * from the busy queue to the completed queue.
1464 /* see if the OPQ contains anything */
1465 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc))
1468 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
1469 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
1472 debug(2, "completed command %d%s", index,
1473 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
1474 if (index >= sc->ciss_max_requests) {
1475 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
1478 cr = &(sc->ciss_request[index]);
1479 cc = CISS_FIND_COMMAND(cr);
1480 cc->header.host_tag = tag; /* not updated by adapter */
1481 if (ciss_remove_busy(cr)) {
1482 /* assume this is garbage out of the adapter */
1483 ciss_printf(sc, "completed nonbusy request %d\n", index);
1485 ciss_enqueue_complete(cr);
1491 * Invoke completion processing. If we can defer this out of
1492 * interrupt context, that'd be good.
1498 /************************************************************************
1499 * Take an interrupt from the adapter.
1502 ciss_intr(void *arg)
1504 struct ciss_softc *sc = (struct ciss_softc *)arg;
1507 * The only interrupt we recognise indicates that there are
1508 * entries in the outbound post queue.
1513 /************************************************************************
1514 * Process completed requests.
1516 * Requests can be completed in three fashions:
1518 * - by invoking a callback function (cr_complete is non-null)
1519 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
1520 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
1523 ciss_complete(struct ciss_softc *sc)
1525 struct ciss_request *cr;
1530 * Loop taking requests off the completed queue and performing
1531 * completion processing on them.
1534 if ((cr = ciss_dequeue_complete(sc)) == NULL)
1536 ciss_unmap_request(cr);
1539 * If the request has a callback, invoke it.
1541 if (cr->cr_complete != NULL) {
1542 cr->cr_complete(cr);
1547 * If someone is sleeping on this request, wake them up.
1549 if (cr->cr_flags & CISS_REQ_SLEEP) {
1550 cr->cr_flags &= ~CISS_REQ_SLEEP;
1556 * If someone is polling this request for completion, signal.
1558 if (cr->cr_flags & CISS_REQ_POLL) {
1559 cr->cr_flags &= ~CISS_REQ_POLL;
1564 * Give up and throw the request back on the free queue. This
1565 * should never happen; resources will probably be lost.
1567 ciss_printf(sc, "WARNING: completed command with no submitter\n");
1568 ciss_enqueue_free(cr);
1572 /************************************************************************
1573 * Report on the completion status of a request, and pass back SCSI
1574 * and command status values.
1577 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status)
1579 struct ciss_command *cc;
1580 struct ciss_error_info *ce;
1584 cc = CISS_FIND_COMMAND(cr);
1585 ce = (struct ciss_error_info *)&(cc->sg[0]);
1588 * We don't consider data under/overrun an error for the Report
1589 * Logical/Physical LUNs commands.
1591 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
1592 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
1593 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) {
1594 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
1595 debug(2, "ignoring irrelevant under/overrun error");
1599 * Check the command's error bit, if clear, there's no status and
1602 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
1603 if (scsi_status != NULL)
1604 *scsi_status = SCSI_STATUS_OK;
1605 if (command_status != NULL)
1606 *command_status = CISS_CMD_STATUS_SUCCESS;
1609 if (command_status != NULL)
1610 *command_status = ce->command_status;
1611 if (scsi_status != NULL) {
1612 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
1613 *scsi_status = ce->scsi_status;
1619 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
1620 ce->command_status, ciss_name_command_status(ce->command_status),
1622 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
1623 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n",
1624 ce->additional_error_info.invalid_command.offense_size,
1625 ce->additional_error_info.invalid_command.offense_offset,
1626 ce->additional_error_info.invalid_command.offense_value);
1632 /************************************************************************
1633 * Issue a request and don't return until it's completed.
1635 * Depending on adapter status, we may poll or sleep waiting for
1639 ciss_synch_request(struct ciss_request *cr, int timeout)
1641 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
1642 return(ciss_wait_request(cr, timeout));
1644 return(ciss_poll_request(cr, timeout));
1648 /************************************************************************
1649 * Issue a request and poll for completion.
1651 * Timeout in milliseconds.
1654 ciss_poll_request(struct ciss_request *cr, int timeout)
1660 cr->cr_flags |= CISS_REQ_POLL;
1661 if ((error = ciss_start(cr)) != 0)
1665 ciss_done(cr->cr_sc);
1666 if (!(cr->cr_flags & CISS_REQ_POLL))
1669 } while (timeout-- >= 0);
1670 return(EWOULDBLOCK);
1673 /************************************************************************
1674 * Issue a request and sleep waiting for completion.
1676 * Timeout in milliseconds. Note that a spurious wakeup will reset
1680 ciss_wait_request(struct ciss_request *cr, int timeout)
1686 cr->cr_flags |= CISS_REQ_SLEEP;
1687 if ((error = ciss_start(cr)) != 0)
1691 while (cr->cr_flags & CISS_REQ_SLEEP) {
1692 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000);
1694 * On wakeup or interruption due to restartable activity, go
1695 * back and check to see if we're done.
1697 if ((error == 0) || (error == ERESTART)) {
1702 * Timeout, interrupted system call, etc.
1711 /************************************************************************
1712 * Abort a request. Note that a potential exists here to race the
1713 * request being completed; the caller must deal with this.
1716 ciss_abort_request(struct ciss_request *ar)
1718 struct ciss_request *cr;
1719 struct ciss_command *cc;
1720 struct ciss_message_cdb *cmc;
1726 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
1729 /* build the abort command */
1730 cc = CISS_FIND_COMMAND(cr);
1731 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
1732 cc->header.address.physical.target = 0;
1733 cc->header.address.physical.bus = 0;
1734 cc->cdb.cdb_length = sizeof(*cmc);
1735 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
1736 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1737 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
1738 cc->cdb.timeout = 30;
1740 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
1741 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
1742 cmc->type = CISS_MESSAGE_ABORT_TASK;
1743 cmc->abort_tag = ar->cr_tag; /* endianness?? */
1746 * Send the request and wait for a response. If we believe we
1747 * aborted the request OK, clear the flag that indicates it's
1750 error = ciss_synch_request(cr, 35 * 1000);
1752 error = ciss_report_request(cr, NULL, NULL);
1753 ciss_release_request(cr);
1760 /************************************************************************
1761 * Fetch and initialise a request
1764 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
1766 struct ciss_request *cr;
1771 * Get a request and clean it up.
1773 if ((cr = ciss_dequeue_free(sc)) == NULL)
1778 cr->cr_complete = NULL;
1780 ciss_preen_command(cr);
1786 ciss_preen_command(struct ciss_request *cr)
1788 struct ciss_command *cc;
1792 * Clean up the command structure.
1794 * Note that we set up the error_info structure here, since the
1795 * length can be overwritten by any command.
1797 cc = CISS_FIND_COMMAND(cr);
1798 cc->header.sg_in_list = 0; /* kinda inefficient this way */
1799 cc->header.sg_total = 0;
1800 cc->header.host_tag = cr->cr_tag << 2;
1801 cc->header.host_tag_zeroes = 0;
1802 cmdphys = CISS_FIND_COMMANDPHYS(cr);
1803 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
1804 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
1808 /************************************************************************
1809 * Release a request to the free list.
1812 ciss_release_request(struct ciss_request *cr)
1814 struct ciss_softc *sc;
1820 /* release the request to the free queue */
1821 ciss_requeue_free(cr);
1824 /************************************************************************
1825 * Allocate a request that will be used to send a BMIC command. Do some
1826 * of the common setup here to avoid duplicating it everywhere else.
1829 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
1830 int opcode, void **bufp, size_t bufsize)
1832 struct ciss_request *cr;
1833 struct ciss_command *cc;
1834 struct ciss_bmic_cdb *cbc;
1847 if ((error = ciss_get_request(sc, &cr)) != 0)
1851 * Allocate data storage if requested, determine the data direction.
1854 if ((bufsize > 0) && (bufp != NULL)) {
1855 if (*bufp == NULL) {
1856 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1862 dataout = 1; /* we are given a buffer, so we are writing */
1867 * Build a CISS BMIC command to get the logical drive ID.
1870 cr->cr_length = bufsize;
1872 cr->cr_flags = CISS_REQ_DATAIN;
1874 cc = CISS_FIND_COMMAND(cr);
1875 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1876 cc->header.address.physical.bus = 0;
1877 cc->header.address.physical.target = 0;
1878 cc->cdb.cdb_length = sizeof(*cbc);
1879 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1880 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1881 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
1882 cc->cdb.timeout = 0;
1884 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1885 bzero(cbc, sizeof(*cbc));
1886 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
1887 cbc->bmic_opcode = opcode;
1888 cbc->size = htons((u_int16_t)bufsize);
1893 ciss_release_request(cr);
1894 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1895 free(buf, CISS_MALLOC_CLASS);
1898 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1904 /************************************************************************
1905 * Handle a command passed in from userspace.
1908 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
1910 struct ciss_request *cr;
1911 struct ciss_command *cc;
1912 struct ciss_error_info *ce;
1922 if ((error = ciss_get_request(sc, &cr)) != 0)
1924 cc = CISS_FIND_COMMAND(cr);
1927 * Allocate an in-kernel databuffer if required, copy in user data.
1929 cr->cr_length = ioc->buf_size;
1930 if (ioc->buf_size > 0) {
1931 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) {
1935 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
1936 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1942 * Build the request based on the user command.
1944 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
1945 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
1947 /* XXX anything else to populate here? */
1952 if ((error = ciss_synch_request(cr, 60 * 1000))) {
1953 debug(0, "request failed - %d", error);
1958 * Copy the results back to the user.
1960 ce = (struct ciss_error_info *)&(cc->sg[0]);
1961 bcopy(ce, &ioc->error_info, sizeof(*ce));
1962 if ((ioc->buf_size > 0) &&
1963 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
1964 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1972 if ((cr != NULL) && (cr->cr_data != NULL))
1973 free(cr->cr_data, CISS_MALLOC_CLASS);
1975 ciss_release_request(cr);
1979 /************************************************************************
1980 * Map a request into bus-visible space, initialise the scatter/gather
1984 ciss_map_request(struct ciss_request *cr)
1986 struct ciss_softc *sc;
1992 /* check that mapping is necessary */
1993 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
1996 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length,
1997 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0);
1999 if (cr->cr_flags & CISS_REQ_DATAIN)
2000 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2001 if (cr->cr_flags & CISS_REQ_DATAOUT)
2002 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2004 cr->cr_flags |= CISS_REQ_MAPPED;
2009 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2011 struct ciss_command *cc;
2016 cc = (struct ciss_command *)arg;
2017 for (i = 0; i < nseg; i++) {
2018 cc->sg[i].address = segs[i].ds_addr;
2019 cc->sg[i].length = segs[i].ds_len;
2020 cc->sg[i].extension = 0;
2022 /* we leave the s/g table entirely within the command */
2023 cc->header.sg_in_list = nseg;
2024 cc->header.sg_total = nseg;
2027 /************************************************************************
2028 * Unmap a request from bus-visible space.
2031 ciss_unmap_request(struct ciss_request *cr)
2033 struct ciss_softc *sc;
2039 /* check that unmapping is necessary */
2040 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
2043 if (cr->cr_flags & CISS_REQ_DATAIN)
2044 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2045 if (cr->cr_flags & CISS_REQ_DATAOUT)
2046 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2048 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2049 cr->cr_flags &= ~CISS_REQ_MAPPED;
2052 /************************************************************************
2053 * Attach the driver to CAM.
2055 * We put all the logical drives on a single SCSI bus.
2058 ciss_cam_init(struct ciss_softc *sc)
2064 * Allocate a devq. We can reuse this for the masked physical
2065 * devices if we decide to export these as well.
2067 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) {
2068 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2075 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc,
2076 device_get_unit(sc->ciss_dev),
2077 sc->ciss_max_requests - 2,
2079 sc->ciss_cam_devq)) == NULL) {
2080 ciss_printf(sc, "can't allocate CAM SIM\n");
2085 * Register bus 0 (the 'logical drives' bus) with this SIM.
2087 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) {
2088 ciss_printf(sc, "can't register SCSI bus 0\n");
2093 * Initiate a rescan of the bus.
2095 ciss_cam_rescan_all(sc);
2100 /************************************************************************
2101 * Initiate a rescan of the 'logical devices' SIM
2104 ciss_cam_rescan_target(struct ciss_softc *sc, int target)
2110 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) {
2111 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2115 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0)
2117 ciss_printf(sc, "rescan failed (can't create path)\n");
2121 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/);
2122 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2123 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
2124 ccb->crcn.flags = CAM_FLAG_NONE;
2127 /* scan is now in progress */
2131 ciss_cam_rescan_all(struct ciss_softc *sc)
2133 return(ciss_cam_rescan_target(sc, 0));
2137 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2139 xpt_free_path(ccb->ccb_h.path);
2143 /************************************************************************
2144 * Handle requests coming from CAM
2147 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2149 struct ciss_softc *sc;
2150 struct ccb_scsiio *csio;
2153 sc = cam_sim_softc(sim);
2154 csio = (struct ccb_scsiio *)&ccb->csio;
2155 target = csio->ccb_h.target_id;
2157 switch (ccb->ccb_h.func_code) {
2159 /* perform SCSI I/O */
2161 if (!ciss_cam_action_io(sim, csio))
2165 /* perform geometry calculations */
2166 case XPT_CALC_GEOMETRY:
2168 struct ccb_calc_geometry *ccg = &ccb->ccg;
2169 struct ciss_ldrive *ld = &sc->ciss_logical[target];
2171 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2174 * Use the cached geometry settings unless the fault tolerance
2177 if (ld->cl_geometry.fault_tolerance == 0xFF) {
2178 u_int32_t secs_per_cylinder;
2181 ccg->secs_per_track = 32;
2182 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2183 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2185 ccg->heads = ld->cl_geometry.heads;
2186 ccg->secs_per_track = ld->cl_geometry.sectors;
2187 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2189 ccb->ccb_h.status = CAM_REQ_CMP;
2193 /* handle path attribute inquiry */
2196 struct ccb_pathinq *cpi = &ccb->cpi;
2198 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2200 cpi->version_num = 1;
2201 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2202 cpi->target_sprt = 0;
2204 cpi->max_target = CISS_MAX_LOGICAL;
2205 cpi->max_lun = 0; /* 'logical drive' channel only */
2206 cpi->initiator_id = CISS_MAX_LOGICAL;
2207 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2208 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
2209 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2210 cpi->unit_number = cam_sim_unit(sim);
2211 cpi->bus_id = cam_sim_bus(sim);
2212 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
2213 ccb->ccb_h.status = CAM_REQ_CMP;
2217 case XPT_GET_TRAN_SETTINGS:
2219 struct ccb_trans_settings *cts = &ccb->cts;
2222 bus = cam_sim_bus(sim);
2223 target = cts->ccb_h.target_id;
2225 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
2228 /* disconnect always OK */
2229 cts->flags |= CCB_TRANS_DISC_ENB;
2230 cts->valid |= CCB_TRANS_DISC_VALID;
2232 cts->ccb_h.status = CAM_REQ_CMP;
2236 default: /* we can't do this */
2237 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
2238 ccb->ccb_h.status = CAM_REQ_INVALID;
2245 /************************************************************************
2246 * Handle a CAM SCSI I/O request.
2249 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
2251 struct ciss_softc *sc;
2253 struct ciss_request *cr;
2254 struct ciss_command *cc;
2257 sc = cam_sim_softc(sim);
2258 bus = cam_sim_bus(sim);
2259 target = csio->ccb_h.target_id;
2261 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
2263 /* check for I/O attempt to nonexistent device */
2265 (target > CISS_MAX_LOGICAL) ||
2266 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) {
2267 debug(3, " device does not exist");
2268 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2271 /* firmware does not support commands > 10 bytes */
2272 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) {
2273 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE);
2274 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2277 /* check that the CDB pointer is not to a physical address */
2278 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
2279 debug(3, " CDB pointer is to physical address");
2280 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2283 /* if there is data transfer, it must be to/from a virtual address */
2284 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2285 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
2286 debug(3, " data pointer is to physical address");
2287 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2289 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
2290 debug(3, " data has premature s/g setup");
2291 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2295 /* abandon aborted ccbs or those that have failed validation */
2296 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2297 debug(3, "abandoning CCB due to abort/validation failure");
2301 /* handle emulation of some SCSI commands ourself */
2302 if (ciss_cam_emulate(sc, csio))
2306 * Get a request to manage this command. If we can't, return the
2307 * ccb, freeze the queue and flag so that we unfreeze it when a
2308 * request completes.
2310 if ((error = ciss_get_request(sc, &cr)) != 0) {
2311 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2312 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2317 * Build the command.
2319 cc = CISS_FIND_COMMAND(cr);
2320 cr->cr_data = csio->data_ptr;
2321 cr->cr_length = csio->dxfer_len;
2322 cr->cr_complete = ciss_cam_complete;
2323 cr->cr_private = csio;
2325 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
2326 cc->header.address.logical.lun = target;
2327 cc->cdb.cdb_length = csio->cdb_len;
2328 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2329 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
2330 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2331 cr->cr_flags = CISS_REQ_DATAOUT;
2332 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
2333 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2334 cr->cr_flags = CISS_REQ_DATAIN;
2335 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2338 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2340 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
2341 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
2342 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
2344 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
2348 * Submit the request to the adapter.
2350 * Note that this may fail if we're unable to map the request (and
2351 * if we ever learn a transport layer other than simple, may fail
2352 * if the adapter rejects the command).
2354 if ((error = ciss_start(cr)) != 0) {
2355 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2356 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2357 ciss_release_request(cr);
2364 /************************************************************************
2365 * Emulate SCSI commands the adapter doesn't handle as we might like.
2368 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
2374 target = csio->ccb_h.target_id;
2375 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
2376 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
2379 * Handle requests for volumes that don't exist. A selection timeout
2380 * is slightly better than an illegal request. Other errors might be
2383 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) {
2384 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2385 xpt_done((union ccb *)csio);
2390 * Handle requests for volumes that exist but are offline.
2392 * I/O operations should fail, everything else should work.
2394 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) {
2402 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2403 xpt_done((union ccb *)csio);
2409 /* if we have to fake Synchronise Cache */
2410 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
2413 * If this is a Synchronise Cache command, typically issued when
2414 * a device is closed, flush the adapter and complete now.
2416 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2417 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
2418 ciss_flush_adapter(sc);
2419 csio->ccb_h.status = CAM_REQ_CMP;
2420 xpt_done((union ccb *)csio);
2428 /************************************************************************
2429 * Check for possibly-completed commands.
2432 ciss_cam_poll(struct cam_sim *sim)
2434 struct ciss_softc *sc = cam_sim_softc(sim);
2441 /************************************************************************
2442 * Handle completion of a command - pass results back through the CCB
2445 ciss_cam_complete(struct ciss_request *cr)
2447 struct ciss_softc *sc;
2448 struct ciss_command *cc;
2449 struct ciss_error_info *ce;
2450 struct ccb_scsiio *csio;
2457 cc = CISS_FIND_COMMAND(cr);
2458 ce = (struct ciss_error_info *)&(cc->sg[0]);
2459 csio = (struct ccb_scsiio *)cr->cr_private;
2462 * Extract status values from request.
2464 ciss_report_request(cr, &command_status, &scsi_status);
2465 csio->scsi_status = scsi_status;
2468 * Handle specific SCSI status values.
2470 switch(scsi_status) {
2471 /* no status due to adapter error */
2473 debug(0, "adapter error");
2474 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2477 /* no status due to command completed OK */
2478 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
2479 debug(2, "SCSI_STATUS_OK");
2480 csio->ccb_h.status = CAM_REQ_CMP;
2483 /* check condition, sense data included */
2484 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
2485 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d",
2486 ce->sense_length, ce->residual_count);
2487 bzero(&csio->sense_data, SSD_FULL_SIZE);
2488 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
2489 csio->sense_len = ce->sense_length;
2490 csio->resid = ce->residual_count;
2491 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
2494 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
2495 debug(0, "sense key %x", sns->flags & SSD_KEY);
2500 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
2501 debug(0, "SCSI_STATUS_BUSY");
2502 csio->ccb_h.status = CAM_SCSI_BUSY;
2506 debug(0, "unknown status 0x%x", csio->scsi_status);
2507 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2511 /* handle post-command fixup */
2512 ciss_cam_complete_fixup(sc, csio);
2514 /* tell CAM we're ready for more commands */
2515 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
2517 xpt_done((union ccb *)csio);
2518 ciss_release_request(cr);
2521 /********************************************************************************
2522 * Fix up the result of some commands here.
2525 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
2527 struct scsi_inquiry_data *inq;
2528 struct ciss_ldrive *cl;
2531 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2532 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) {
2534 inq = (struct scsi_inquiry_data *)csio->data_ptr;
2535 target = csio->ccb_h.target_id;
2536 cl = &sc->ciss_logical[target];
2538 padstr(inq->vendor, "COMPAQ", 8);
2539 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
2540 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
2545 /********************************************************************************
2546 * Find a peripheral attached at (target)
2548 static struct cam_periph *
2549 ciss_find_periph(struct ciss_softc *sc, int target)
2551 struct cam_periph *periph;
2552 struct cam_path *path;
2555 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0);
2556 if (status == CAM_REQ_CMP) {
2557 periph = cam_periph_find(path, NULL);
2558 xpt_free_path(path);
2565 /********************************************************************************
2566 * Name the device at (target)
2568 * XXX is this strictly correct?
2571 ciss_name_device(struct ciss_softc *sc, int target)
2573 struct cam_periph *periph;
2575 if ((periph = ciss_find_periph(sc, target)) != NULL) {
2576 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number);
2579 sc->ciss_logical[target].cl_name[0] = 0;
2583 /************************************************************************
2584 * Periodic status monitoring.
2587 ciss_periodic(void *arg)
2589 struct ciss_softc *sc;
2593 sc = (struct ciss_softc *)arg;
2596 * Check the adapter heartbeat.
2598 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
2599 sc->ciss_heart_attack++;
2600 debug(0, "adapter heart attack in progress 0x%x/%d",
2601 sc->ciss_heartbeat, sc->ciss_heart_attack);
2602 if (sc->ciss_heart_attack == 3) {
2603 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
2604 /* XXX should reset adapter here */
2607 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
2608 sc->ciss_heart_attack = 0;
2609 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
2613 * If the notify event request has died for some reason, or has
2614 * not started yet, restart it.
2616 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
2617 debug(0, "(re)starting Event Notify chain");
2618 ciss_notify_event(sc);
2624 if (!(sc->ciss_flags & CISS_FLAG_ABORTING))
2625 sc->ciss_periodic = timeout(ciss_periodic, sc, 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 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2665 debug(0, "can't get notify event request buffer");
2669 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2672 /* re-setup the request's command (since we never release it) XXX overkill*/
2673 ciss_preen_command(cr);
2675 /* (re)build the notify event command */
2676 cc = CISS_FIND_COMMAND(cr);
2677 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2678 cc->header.address.physical.bus = 0;
2679 cc->header.address.physical.target = 0;
2681 cc->cdb.cdb_length = sizeof(*cnc);
2682 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2683 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2684 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2685 cc->cdb.timeout = 0; /* no timeout, we hope */
2687 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2688 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
2689 cnc->opcode = CISS_OPCODE_READ;
2690 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
2691 cnc->timeout = 0; /* no timeout, we hope */
2692 cnc->synchronous = 0;
2694 cnc->seek_to_oldest = 0;
2696 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2698 /* submit the request */
2699 error = ciss_start(cr);
2704 if (cr->cr_data != NULL)
2705 free(cr->cr_data, CISS_MALLOC_CLASS);
2706 ciss_release_request(cr);
2708 sc->ciss_periodic_notify = NULL;
2709 debug(0, "can't submit notify event request");
2710 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2712 debug(1, "notify event submitted");
2713 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
2718 ciss_notify_complete(struct ciss_request *cr)
2720 struct ciss_command *cc;
2721 struct ciss_notify *cn;
2722 struct ciss_softc *sc;
2728 cc = CISS_FIND_COMMAND(cr);
2729 cn = (struct ciss_notify *)cr->cr_data;
2733 * Report request results, decode status.
2735 ciss_report_request(cr, &command_status, &scsi_status);
2738 * Abort the chain on a fatal error.
2740 * XXX which of these are actually errors?
2742 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
2743 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
2744 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
2745 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
2746 ciss_name_command_status(command_status));
2747 ciss_release_request(cr);
2748 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2753 * If the adapter gave us a text message, print it.
2755 if (cn->message[0] != 0)
2756 ciss_printf(sc, "*** %.80s\n", cn->message);
2758 debug(0, "notify event class %d subclass %d detail %d",
2759 cn->class, cn->subclass, cn->detail);
2762 * If there's room, save the event for a user-level tool.
2764 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) {
2765 sc->ciss_notify[sc->ciss_notify_head] = *cn;
2766 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS;
2770 * Some events are directly of interest to us.
2772 switch (cn->class) {
2773 case CISS_NOTIFY_LOGICAL:
2774 ciss_notify_logical(sc, cn);
2776 case CISS_NOTIFY_PHYSICAL:
2777 ciss_notify_physical(sc, cn);
2782 * If the response indicates that the notifier has been aborted,
2783 * release the notifier command.
2785 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
2786 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
2787 (cn->detail == 1)) {
2788 debug(0, "notifier exiting");
2789 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2790 ciss_release_request(cr);
2791 sc->ciss_periodic_notify = NULL;
2792 wakeup(&sc->ciss_periodic_notify);
2796 * Send a new notify event command, if we're not aborting.
2798 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
2799 ciss_notify_event(sc);
2803 /************************************************************************
2804 * Abort the Notify Event chain.
2806 * Note that we can't just abort the command in progress; we have to
2807 * explicitly issue an Abort Notify Event command in order for the
2808 * adapter to clean up correctly.
2810 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
2811 * the chain will not restart itself.
2814 ciss_notify_abort(struct ciss_softc *sc)
2816 struct ciss_request *cr;
2817 struct ciss_command *cc;
2818 struct ciss_notify_cdb *cnc;
2819 int error, s, command_status, scsi_status;
2826 /* verify that there's an outstanding command */
2827 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2830 /* get a command to issue the abort with */
2831 if ((error = ciss_get_request(sc, &cr)))
2834 /* get a buffer for the result */
2835 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2836 debug(0, "can't get notify event request buffer");
2840 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2843 cc = CISS_FIND_COMMAND(cr);
2844 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2845 cc->header.address.physical.bus = 0;
2846 cc->header.address.physical.target = 0;
2847 cc->cdb.cdb_length = sizeof(*cnc);
2848 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2849 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2850 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2851 cc->cdb.timeout = 0; /* no timeout, we hope */
2853 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2854 bzero(cnc, sizeof(*cnc));
2855 cnc->opcode = CISS_OPCODE_WRITE;
2856 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
2857 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2859 ciss_print_request(cr);
2862 * Submit the request and wait for it to complete.
2864 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2865 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
2872 ciss_report_request(cr, &command_status, &scsi_status);
2873 switch(command_status) {
2874 case CISS_CMD_STATUS_SUCCESS:
2876 case CISS_CMD_STATUS_INVALID_COMMAND:
2878 * Some older adapters don't support the CISS version of this
2879 * command. Fall back to using the BMIC version.
2881 error = ciss_notify_abort_bmic(sc);
2886 case CISS_CMD_STATUS_TARGET_STATUS:
2888 * This can happen if the adapter thinks there wasn't an outstanding
2889 * Notify Event command but we did. We clean up here.
2891 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
2892 if (sc->ciss_periodic_notify != NULL)
2893 ciss_release_request(sc->ciss_periodic_notify);
2900 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
2901 ciss_name_command_status(command_status));
2907 * Sleep waiting for the notifier command to complete. Note
2908 * that if it doesn't, we may end up in a bad situation, since
2909 * the adapter may deliver it later. Also note that the adapter
2910 * requires the Notify Event command to be cancelled in order to
2911 * maintain internal bookkeeping.
2914 while (sc->ciss_periodic_notify != NULL) {
2915 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5);
2916 if (error == EWOULDBLOCK) {
2917 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
2924 /* release the cancel request */
2926 if (cr->cr_data != NULL)
2927 free(cr->cr_data, CISS_MALLOC_CLASS);
2928 ciss_release_request(cr);
2931 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2935 /************************************************************************
2936 * Abort the Notify Event chain using a BMIC command.
2939 ciss_notify_abort_bmic(struct ciss_softc *sc)
2941 struct ciss_request *cr;
2942 int error, command_status;
2949 /* verify that there's an outstanding command */
2950 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2954 * Build a BMIC command to cancel the Notify on Event command.
2956 * Note that we are sending a CISS opcode here. Odd.
2958 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
2963 * Submit the request and wait for it to complete.
2965 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2966 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
2973 ciss_report_request(cr, &command_status, NULL);
2974 switch(command_status) {
2975 case CISS_CMD_STATUS_SUCCESS:
2978 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
2979 ciss_name_command_status(command_status));
2986 ciss_release_request(cr);
2990 /************************************************************************
2991 * Handle a notify event relating to the status of a logical drive.
2993 * XXX need to be able to defer some of these to properly handle
2994 * calling the "ID Physical drive" command, unless the 'extended'
2995 * drive IDs are always in BIG_MAP format.
2998 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
3000 struct ciss_ldrive *ld;
3005 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive];
3007 switch (cn->subclass) {
3008 case CISS_NOTIFY_LOGICAL_STATUS:
3009 switch (cn->detail) {
3011 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3012 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3013 cn->data.logical_status.logical_drive, ld->cl_name,
3014 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3015 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3016 cn->data.logical_status.spare_state,
3017 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3020 * Update our idea of the drive's status.
3022 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
3023 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3024 if (ld->cl_lstatus != NULL)
3025 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3029 * Have CAM rescan the drive if its status has changed.
3031 if (ostatus != ld->cl_status)
3032 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive);
3037 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3038 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3039 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
3040 cn->data.logical_status.logical_drive, ld->cl_name);
3041 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1);
3046 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
3047 cn->data.rebuild_aborted.logical_drive,
3048 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name,
3049 (cn->detail == 2) ? "read" : "write");
3054 case CISS_NOTIFY_LOGICAL_ERROR:
3055 if (cn->detail == 0) {
3056 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3057 cn->data.io_error.logical_drive,
3058 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name,
3059 cn->data.io_error.failure_bus,
3060 cn->data.io_error.failure_drive);
3061 /* XXX should we take the drive down at this point, or will we be told? */
3065 case CISS_NOTIFY_LOGICAL_SURFACE:
3066 if (cn->detail == 0)
3067 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
3068 cn->data.consistency_completed.logical_drive,
3069 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name);
3074 /************************************************************************
3075 * Handle a notify event relating to the status of a physical drive.
3078 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
3083 /************************************************************************
3087 ciss_print_request(struct ciss_request *cr)
3089 struct ciss_softc *sc;
3090 struct ciss_command *cc;
3094 cc = CISS_FIND_COMMAND(cr);
3096 ciss_printf(sc, "REQUEST @ %p\n", cr);
3097 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
3098 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
3099 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
3100 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
3101 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
3102 switch(cc->header.address.mode.mode) {
3103 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
3104 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
3105 ciss_printf(sc, " physical bus %d target %d\n",
3106 cc->header.address.physical.bus, cc->header.address.physical.target);
3108 case CISS_HDR_ADDRESS_MODE_LOGICAL:
3109 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
3112 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
3113 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
3114 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
3115 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
3117 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
3118 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
3119 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
3120 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
3121 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
3122 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
3123 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
3124 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
3126 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
3127 /* XXX print error info */
3129 /* since we don't use chained s/g, don't support it here */
3130 for (i = 0; i < cc->header.sg_in_list; i++) {
3132 ciss_printf(sc, " ");
3133 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
3134 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
3140 /************************************************************************
3141 * Print information about the status of a logical drive.
3144 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
3148 if (ld->cl_lstatus == NULL) {
3149 printf("does not exist\n");
3153 /* print drive status */
3154 switch(ld->cl_lstatus->status) {
3155 case CISS_LSTATUS_OK:
3158 case CISS_LSTATUS_INTERIM_RECOVERY:
3159 printf("in interim recovery mode\n");
3161 case CISS_LSTATUS_READY_RECOVERY:
3162 printf("ready to begin recovery\n");
3164 case CISS_LSTATUS_RECOVERING:
3165 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3166 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3167 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
3168 bus, target, ld->cl_lstatus->blocks_to_recover);
3170 case CISS_LSTATUS_EXPANDING:
3171 printf("being expanded, %u blocks remaining\n",
3172 ld->cl_lstatus->blocks_to_recover);
3174 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3175 printf("queued for expansion\n");
3177 case CISS_LSTATUS_FAILED:
3178 printf("queued for expansion\n");
3180 case CISS_LSTATUS_WRONG_PDRIVE:
3181 printf("wrong physical drive inserted\n");
3183 case CISS_LSTATUS_MISSING_PDRIVE:
3184 printf("missing a needed physical drive\n");
3186 case CISS_LSTATUS_BECOMING_READY:
3187 printf("becoming ready\n");
3191 /* print failed physical drives */
3192 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
3193 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
3194 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
3197 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
3198 ld->cl_lstatus->drive_failure_map[i]);
3203 /************************************************************************
3204 * Print information about the controller/driver.
3207 ciss_print_adapter(struct ciss_softc *sc)
3211 ciss_printf(sc, "ADAPTER:\n");
3212 for (i = 0; i < CISSQ_COUNT; i++) {
3213 ciss_printf(sc, "%s %d/%d\n",
3215 i == 1 ? "busy" : "complete",
3216 sc->ciss_qstat[i].q_length,
3217 sc->ciss_qstat[i].q_max);
3219 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
3220 ciss_printf(sc, "notify_head/tail %d/%d\n",
3221 sc->ciss_notify_head, sc->ciss_notify_tail);
3222 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
3223 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
3225 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
3226 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
3227 ciss_print_ldrive(sc, sc->ciss_logical + i);
3230 for (i = 1; i < sc->ciss_max_requests; i++)
3231 ciss_print_request(sc->ciss_request + i);
3239 struct ciss_softc *sc;
3241 sc = devclass_get_softc(devclass_find("ciss"), 0);
3243 printf("no ciss controllers\n");
3245 ciss_print_adapter(sc);
3250 /************************************************************************
3251 * Return a name for a logical drive status value.
3254 ciss_name_ldrive_status(int status)
3257 case CISS_LSTATUS_OK:
3259 case CISS_LSTATUS_FAILED:
3261 case CISS_LSTATUS_NOT_CONFIGURED:
3262 return("not configured");
3263 case CISS_LSTATUS_INTERIM_RECOVERY:
3264 return("interim recovery");
3265 case CISS_LSTATUS_READY_RECOVERY:
3266 return("ready for recovery");
3267 case CISS_LSTATUS_RECOVERING:
3268 return("recovering");
3269 case CISS_LSTATUS_WRONG_PDRIVE:
3270 return("wrong physical drive inserted");
3271 case CISS_LSTATUS_MISSING_PDRIVE:
3272 return("missing physical drive");
3273 case CISS_LSTATUS_EXPANDING:
3274 return("expanding");
3275 case CISS_LSTATUS_BECOMING_READY:
3276 return("becoming ready");
3277 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3278 return("queued for expansion");
3280 return("unknown status");
3283 /************************************************************************
3284 * Return an online/offline/nonexistent value for a logical drive
3288 ciss_decode_ldrive_status(int status)
3291 case CISS_LSTATUS_NOT_CONFIGURED:
3292 return(CISS_LD_NONEXISTENT);
3294 case CISS_LSTATUS_OK:
3295 case CISS_LSTATUS_INTERIM_RECOVERY:
3296 case CISS_LSTATUS_READY_RECOVERY:
3297 case CISS_LSTATUS_RECOVERING:
3298 case CISS_LSTATUS_EXPANDING:
3299 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3300 return(CISS_LD_ONLINE);
3302 case CISS_LSTATUS_FAILED:
3303 case CISS_LSTATUS_WRONG_PDRIVE:
3304 case CISS_LSTATUS_MISSING_PDRIVE:
3305 case CISS_LSTATUS_BECOMING_READY:
3307 return(CISS_LD_OFFLINE);
3312 /************************************************************************
3313 * Return a name for a logical drive's organisation.
3316 ciss_name_ldrive_org(int org)
3319 case CISS_LDRIVE_RAID0:
3321 case CISS_LDRIVE_RAID1:
3323 case CISS_LDRIVE_RAID4:
3325 case CISS_LDRIVE_RAID5:
3331 /************************************************************************
3332 * Return a name for a command status value.
3335 ciss_name_command_status(int status)
3338 case CISS_CMD_STATUS_SUCCESS:
3340 case CISS_CMD_STATUS_TARGET_STATUS:
3341 return("target status");
3342 case CISS_CMD_STATUS_DATA_UNDERRUN:
3343 return("data underrun");
3344 case CISS_CMD_STATUS_DATA_OVERRUN:
3345 return("data overrun");
3346 case CISS_CMD_STATUS_INVALID_COMMAND:
3347 return("invalid command");
3348 case CISS_CMD_STATUS_PROTOCOL_ERROR:
3349 return("protocol error");
3350 case CISS_CMD_STATUS_HARDWARE_ERROR:
3351 return("hardware error");
3352 case CISS_CMD_STATUS_CONNECTION_LOST:
3353 return("connection lost");
3354 case CISS_CMD_STATUS_ABORTED:
3356 case CISS_CMD_STATUS_ABORT_FAILED:
3357 return("abort failed");
3358 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
3359 return("unsolicited abort");
3360 case CISS_CMD_STATUS_TIMEOUT:
3362 case CISS_CMD_STATUS_UNABORTABLE:
3363 return("unabortable");
3365 return("unknown status");
3368 /************************************************************************
3369 * Handle an open on the control device.
3372 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p)
3374 struct ciss_softc *sc;
3378 sc = (struct ciss_softc *)dev->si_drv1;
3380 /* we might want to veto if someone already has us open */
3382 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
3386 /************************************************************************
3387 * Handle the last close on the control device.
3390 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p)
3392 struct ciss_softc *sc;
3396 sc = (struct ciss_softc *)dev->si_drv1;
3398 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
3402 /********************************************************************************
3403 * Handle adapter-specific control operations.
3405 * Note that the API here is compatible with the Linux driver, in order to
3406 * simplify the porting of Compaq's userland tools.
3409 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p)
3411 struct ciss_softc *sc;
3416 sc = (struct ciss_softc *)dev->si_drv1;
3420 case CCISS_GETPCIINFO:
3422 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
3424 pis->bus = pci_get_bus(sc->ciss_dev);
3425 pis->dev_fn = pci_get_slot(sc->ciss_dev);
3426 pis->board_id = pci_get_devid(sc->ciss_dev);
3431 case CCISS_GETINTINFO:
3433 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3435 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
3436 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
3441 case CCISS_SETINTINFO:
3443 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3445 if ((cis->delay == 0) && (cis->count == 0)) {
3451 * XXX apparently this is only safe if the controller is idle,
3452 * we should suspend it before doing this.
3454 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
3455 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
3457 if (ciss_update_config(sc))
3460 /* XXX resume the controller here */
3464 case CCISS_GETNODENAME:
3465 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
3466 sizeof(NodeName_type));
3469 case CCISS_SETNODENAME:
3470 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
3471 sizeof(NodeName_type));
3472 if (ciss_update_config(sc))
3476 case CCISS_GETHEARTBEAT:
3477 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
3480 case CCISS_GETBUSTYPES:
3481 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
3484 case CCISS_GETFIRMVER:
3485 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
3486 sizeof(FirmwareVer_type));
3489 case CCISS_GETDRIVERVER:
3490 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
3493 case CCISS_REVALIDVOLS:
3495 * This is a bit ugly; to do it "right" we really need
3496 * to find any disks that have changed, kick CAM off them,
3497 * then rescan only these disks. It'd be nice if they
3498 * a) told us which disk(s) they were going to play with,
3499 * and b) which ones had arrived. 8(
3503 case CCISS_PASSTHRU:
3504 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr);
3508 debug(0, "unknown ioctl 0x%lx", cmd);
3510 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
3511 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
3512 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
3513 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
3514 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
3515 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
3516 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
3517 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
3518 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
3519 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
3520 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);