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 1.9 2004/06/21 15:39:30 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>
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);
346 * Work out adapter type.
348 i = ciss_lookup(dev);
349 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
350 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
351 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
352 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
354 /* really an error on our part */
355 ciss_printf(sc, "unable to determine hardware type\n");
361 * Do PCI-specific init.
363 if ((error = ciss_init_pci(sc)) != 0)
367 * Initialise driver queues.
371 ciss_initq_complete(sc);
374 * Initialise command/request pool.
376 if ((error = ciss_init_requests(sc)) != 0)
380 * Get adapter information.
382 if ((error = ciss_identify_adapter(sc)) != 0)
386 * Build our private table of logical devices.
388 if ((error = ciss_init_logical(sc)) != 0)
392 * Enable interrupts so that the CAM scan can complete.
394 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
397 * Initialise the CAM interface.
399 if ((error = ciss_cam_init(sc)) != 0)
403 * Start the heartbeat routine and event chain.
408 * Create the control device.
410 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev));
411 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
412 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
413 "ciss%d", device_get_unit(sc->ciss_dev));
414 sc->ciss_dev_t->si_drv1 = sc;
417 * The adapter is running; synchronous commands can now sleep
418 * waiting for an interrupt to signal completion.
420 sc->ciss_flags |= CISS_FLAG_RUNNING;
429 /************************************************************************
430 * Detach the driver from this adapter.
433 ciss_detach(device_t dev)
435 struct ciss_softc *sc = device_get_softc(dev);
439 /* flush adapter cache */
440 ciss_flush_adapter(sc);
442 /* release all resources */
449 /************************************************************************
450 * Prepare adapter for system shutdown.
453 ciss_shutdown(device_t dev)
455 struct ciss_softc *sc = device_get_softc(dev);
459 /* flush adapter cache */
460 ciss_flush_adapter(sc);
465 /************************************************************************
466 * Perform PCI-specific attachment actions.
469 ciss_init_pci(struct ciss_softc *sc)
471 uintptr_t cbase, csize, cofs;
477 * Allocate register window first (we need this to find the config
481 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
482 if ((sc->ciss_regs_resource =
483 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid,
484 0, ~0, 1, RF_ACTIVE)) == NULL) {
485 ciss_printf(sc, "can't allocate register window\n");
488 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
489 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
492 * Find the BAR holding the config structure. If it's not the one
493 * we already mapped for registers, map it too.
495 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
496 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
497 if ((sc->ciss_cfg_resource =
498 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid,
499 0, ~0, 1, RF_ACTIVE)) == NULL) {
500 ciss_printf(sc, "can't allocate config window\n");
503 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
504 csize = rman_get_end(sc->ciss_cfg_resource) -
505 rman_get_start(sc->ciss_cfg_resource) + 1;
507 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
508 csize = rman_get_end(sc->ciss_regs_resource) -
509 rman_get_start(sc->ciss_regs_resource) + 1;
511 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
514 * Use the base/size/offset values we just calculated to
515 * sanity-check the config structure. If it's OK, point to it.
517 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
518 ciss_printf(sc, "config table outside window\n");
521 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
522 debug(1, "config struct at %p", sc->ciss_cfg);
525 * Validate the config structure. If we supported other transport
526 * methods, we could select amongst them at this point in time.
528 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
529 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
530 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
531 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
534 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) ||
535 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) {
536 ciss_printf(sc, "adapter interface specification (%d) unsupported\n",
537 sc->ciss_cfg->valence);
542 * Put the board into simple mode, and tell it we're using the low
543 * 4GB of RAM. Set the default interrupt coalescing options.
545 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) {
546 ciss_printf(sc, "adapter does not support 'simple' transport layer\n");
549 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE;
550 sc->ciss_cfg->command_physlimit = 0;
551 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
552 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
554 if (ciss_update_config(sc)) {
555 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
556 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
559 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) {
561 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
562 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method);
567 * Wait for the adapter to come ready.
569 if ((error = ciss_wait_adapter(sc)) != 0)
573 * Turn off interrupts before we go routing anything.
575 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
578 * Allocate and set up our interrupt.
580 sc->ciss_irq_rid = 0;
581 if ((sc->ciss_irq_resource =
582 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1,
583 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
584 ciss_printf(sc, "can't allocate interrupt\n");
587 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc,
589 ciss_printf(sc, "can't set up interrupt\n");
594 * Allocate the parent bus DMA tag appropriate for our PCI
597 * Note that "simple" adapters can only address within a 32-bit
600 if (bus_dma_tag_create(NULL, /* parent */
601 1, 0, /* alignment, boundary */
602 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
603 BUS_SPACE_MAXADDR, /* highaddr */
604 NULL, NULL, /* filter, filterarg */
605 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
606 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
607 BUS_DMA_ALLOCNOW, /* flags */
608 &sc->ciss_parent_dmat)) {
609 ciss_printf(sc, "can't allocate parent DMA tag\n");
614 * Create DMA tag for mapping buffers into adapter-addressable
617 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
618 1, 0, /* alignment, boundary */
619 BUS_SPACE_MAXADDR, /* lowaddr */
620 BUS_SPACE_MAXADDR, /* highaddr */
621 NULL, NULL, /* filter, filterarg */
622 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
623 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
625 &sc->ciss_buffer_dmat)) {
626 ciss_printf(sc, "can't allocate buffer DMA tag\n");
632 /************************************************************************
633 * Wait for the adapter to come ready.
636 ciss_wait_adapter(struct ciss_softc *sc)
643 * Wait for the adapter to come ready.
645 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
646 ciss_printf(sc, "waiting for adapter to come ready...\n");
647 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
648 DELAY(1000000); /* one second */
650 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
658 /************************************************************************
659 * Flush the adapter cache.
662 ciss_flush_adapter(struct ciss_softc *sc)
664 struct ciss_request *cr;
665 struct ciss_bmic_flush_cache *cbfc;
666 int error, command_status;
674 * Build a BMIC request to flush the cache. We don't disable
675 * it, as we may be going to do more I/O (eg. we are emulating
676 * the Synchronise Cache command).
678 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
679 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
680 (void **)&cbfc, sizeof(*cbfc))) != 0)
684 * Submit the request and wait for it to complete.
686 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
687 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
694 ciss_report_request(cr, &command_status, NULL);
695 switch(command_status) {
696 case CISS_CMD_STATUS_SUCCESS:
699 ciss_printf(sc, "error flushing cache (%s)\n",
700 ciss_name_command_status(command_status));
707 free(cbfc, CISS_MALLOC_CLASS);
709 ciss_release_request(cr);
713 /************************************************************************
714 * Allocate memory for the adapter command structures, initialise
715 * the request structures.
717 * Note that the entire set of commands are allocated in a single
721 ciss_init_requests(struct ciss_softc *sc)
723 struct ciss_request *cr;
729 * Calculate the number of request structures/commands we are
730 * going to provide for this adapter.
732 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
734 if (1/*bootverbose*/)
735 ciss_printf(sc, "using %d of %d available commands\n",
736 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
739 * Create the DMA tag for commands.
741 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
742 1, 0, /* alignment, boundary */
743 BUS_SPACE_MAXADDR, /* lowaddr */
744 BUS_SPACE_MAXADDR, /* highaddr */
745 NULL, NULL, /* filter, filterarg */
746 CISS_COMMAND_ALLOC_SIZE *
747 sc->ciss_max_requests, 1, /* maxsize, nsegments */
748 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
750 &sc->ciss_command_dmat)) {
751 ciss_printf(sc, "can't allocate command DMA tag\n");
755 * Allocate memory and make it available for DMA.
757 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
758 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
759 ciss_printf(sc, "can't allocate command memory\n");
762 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command,
763 sizeof(struct ciss_command) * sc->ciss_max_requests,
764 ciss_command_map_helper, sc, 0);
765 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
768 * Set up the request and command structures, push requests onto
771 for (i = 1; i < sc->ciss_max_requests; i++) {
772 cr = &sc->ciss_request[i];
775 ciss_enqueue_free(cr);
781 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
783 struct ciss_softc *sc = (struct ciss_softc *)arg;
785 sc->ciss_command_phys = segs->ds_addr;
788 /************************************************************************
789 * Identify the adapter, print some information about it.
792 ciss_identify_adapter(struct ciss_softc *sc)
794 struct ciss_request *cr;
795 int error, command_status;
802 * Get a request, allocate storage for the adapter data.
804 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
805 (void **)&sc->ciss_id,
806 sizeof(*sc->ciss_id))) != 0)
810 * Submit the request and wait for it to complete.
812 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
813 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
820 ciss_report_request(cr, &command_status, NULL);
821 switch(command_status) {
822 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
824 case CISS_CMD_STATUS_DATA_UNDERRUN:
825 case CISS_CMD_STATUS_DATA_OVERRUN:
826 ciss_printf(sc, "data over/underrun reading adapter information\n");
828 ciss_printf(sc, "error reading adapter information (%s)\n",
829 ciss_name_command_status(command_status));
834 /* sanity-check reply */
835 if (!sc->ciss_id->big_map_supported) {
836 ciss_printf(sc, "adapter does not support BIG_MAP\n");
842 /* XXX later revisions may not need this */
843 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
846 /* XXX only really required for old 5300 adapters? */
847 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
849 /* print information */
850 if (1/*bootverbose*/) {
851 ciss_printf(sc, " %d logical drive%s configured\n",
852 sc->ciss_id->configured_logical_drives,
853 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
854 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
855 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
857 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
858 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
859 ciss_printf(sc, " supported I/O methods 0x%b\n",
860 sc->ciss_cfg->supported_methods,
861 "\20\1READY\2simple\3performant\4MEMQ\n");
862 ciss_printf(sc, " active I/O method 0x%b\n",
863 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
864 ciss_printf(sc, " 4G page base 0x%08x\n",
865 sc->ciss_cfg->command_physlimit);
866 ciss_printf(sc, " interrupt coalesce delay %dus\n",
867 sc->ciss_cfg->interrupt_coalesce_delay);
868 ciss_printf(sc, " interrupt coalesce count %d\n",
869 sc->ciss_cfg->interrupt_coalesce_count);
870 ciss_printf(sc, " max outstanding commands %d\n",
871 sc->ciss_cfg->max_outstanding_commands);
872 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
873 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
874 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
875 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
880 if (sc->ciss_id != NULL) {
881 free(sc->ciss_id, CISS_MALLOC_CLASS);
886 ciss_release_request(cr);
890 /************************************************************************
891 * Find logical drives on the adapter.
894 ciss_init_logical(struct ciss_softc *sc)
896 struct ciss_request *cr;
897 struct ciss_command *cc;
898 struct ciss_report_cdb *crc;
899 struct ciss_lun_report *cll;
911 * Get a request, allocate storage for the address list.
913 if ((error = ciss_get_request(sc, &cr)) != 0)
915 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address);
916 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
919 * Build the Report Logical LUNs command.
921 cc = CISS_FIND_COMMAND(cr);
923 cr->cr_length = report_size;
924 cr->cr_flags = CISS_REQ_DATAIN;
926 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
927 cc->header.address.physical.bus = 0;
928 cc->header.address.physical.target = 0;
929 cc->cdb.cdb_length = sizeof(*crc);
930 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
931 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
932 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
933 cc->cdb.timeout = 30; /* XXX better suggestions? */
935 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
936 bzero(crc, sizeof(*crc));
937 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS;
938 crc->length = htonl(report_size); /* big-endian field */
939 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
942 * Submit the request and wait for it to complete. (timeout
943 * here should be much greater than above)
945 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
946 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error);
951 * Check response. Note that data over/underrun is OK.
953 ciss_report_request(cr, &command_status, NULL);
954 switch(command_status) {
955 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
956 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
958 case CISS_CMD_STATUS_DATA_OVERRUN:
959 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n",
963 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
964 ciss_name_command_status(command_status));
968 ciss_release_request(cr);
971 /* sanity-check reply */
972 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
973 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
974 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
975 ndrives, CISS_MAX_LOGICAL);
980 * Save logical drive information.
982 if (1/*bootverbose*/)
983 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : "");
984 if (ndrives != sc->ciss_id->configured_logical_drives)
985 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n",
986 ndrives, sc->ciss_id->configured_logical_drives);
987 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
989 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */
990 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0)
993 * If the drive has had media exchanged, we should bring it online.
995 if (sc->ciss_logical[i].cl_lstatus->media_exchanged)
996 ciss_accept_media(sc, i, 0);
999 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT;
1006 * Note that if the error is a timeout, we are taking a slight
1007 * risk here and assuming that the adapter will not respond at a
1008 * later time, scribbling over host memory.
1011 ciss_release_request(cr);
1013 free(cll, CISS_MALLOC_CLASS);
1018 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1020 struct ciss_request *cr;
1021 struct ciss_command *cc;
1022 struct scsi_inquiry *inq;
1028 lun = ld->cl_address.logical.lun;
1030 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1032 if ((error = ciss_get_request(sc, &cr)) != 0)
1035 cc = CISS_FIND_COMMAND(cr);
1036 cr->cr_data = &ld->cl_geometry;
1037 cr->cr_length = sizeof(ld->cl_geometry);
1038 cr->cr_flags = CISS_REQ_DATAIN;
1040 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
1041 cc->header.address.logical.lun = lun;
1042 cc->cdb.cdb_length = 6;
1043 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1044 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1045 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1046 cc->cdb.timeout = 30;
1048 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1049 inq->opcode = INQUIRY;
1050 inq->byte2 = SI_EVPD;
1051 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1052 inq->length = sizeof(ld->cl_geometry);
1054 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1055 ciss_printf(sc, "error getting geometry (%d)\n", error);
1059 ciss_report_request(cr, &command_status, NULL);
1060 switch(command_status) {
1061 case CISS_CMD_STATUS_SUCCESS:
1062 case CISS_CMD_STATUS_DATA_UNDERRUN:
1064 case CISS_CMD_STATUS_DATA_OVERRUN:
1065 ciss_printf(sc, "WARNING: Data overrun\n");
1068 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1069 ciss_name_command_status(command_status));
1075 ciss_release_request(cr);
1078 /************************************************************************
1079 * Identify a logical drive, initialise state related to it.
1082 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1084 struct ciss_request *cr;
1085 struct ciss_command *cc;
1086 struct ciss_bmic_cdb *cbc;
1087 int error, command_status;
1094 * Build a BMIC request to fetch the drive ID.
1096 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1097 (void **)&ld->cl_ldrive,
1098 sizeof(*ld->cl_ldrive))) != 0)
1100 cc = CISS_FIND_COMMAND(cr);
1101 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1102 cbc->log_drive = ld->cl_address.logical.lun;
1105 * Submit the request and wait for it to complete.
1107 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1108 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1115 ciss_report_request(cr, &command_status, NULL);
1116 switch(command_status) {
1117 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1119 case CISS_CMD_STATUS_DATA_UNDERRUN:
1120 case CISS_CMD_STATUS_DATA_OVERRUN:
1121 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1123 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1124 ciss_name_command_status(command_status));
1128 ciss_release_request(cr);
1132 * Build a CISS BMIC command to get the logical drive status.
1134 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1138 * Get the logical drive geometry.
1140 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1144 * Print the drive's basic characteristics.
1146 if (1/*bootverbose*/) {
1147 ciss_printf(sc, "logical drive %d: %s, %dMB ",
1148 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1149 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1150 ld->cl_ldrive->block_size));
1152 ciss_print_ldrive(sc, ld);
1156 /* make the drive not-exist */
1157 ld->cl_status = CISS_LD_NONEXISTENT;
1158 if (ld->cl_ldrive != NULL) {
1159 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1160 ld->cl_ldrive = NULL;
1162 if (ld->cl_lstatus != NULL) {
1163 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1164 ld->cl_lstatus = NULL;
1168 ciss_release_request(cr);
1173 /************************************************************************
1174 * Get status for a logical drive.
1176 * XXX should we also do this in response to Test Unit Ready?
1179 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1181 struct ciss_request *cr;
1182 struct ciss_command *cc;
1183 struct ciss_bmic_cdb *cbc;
1184 int error, command_status;
1187 * Build a CISS BMIC command to get the logical drive status.
1189 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1190 (void **)&ld->cl_lstatus,
1191 sizeof(*ld->cl_lstatus))) != 0)
1193 cc = CISS_FIND_COMMAND(cr);
1194 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1195 cbc->log_drive = ld->cl_address.logical.lun;
1198 * Submit the request and wait for it to complete.
1200 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1201 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1208 ciss_report_request(cr, &command_status, NULL);
1209 switch(command_status) {
1210 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1212 case CISS_CMD_STATUS_DATA_UNDERRUN:
1213 case CISS_CMD_STATUS_DATA_OVERRUN:
1214 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1216 ciss_printf(sc, "error reading logical drive status (%s)\n",
1217 ciss_name_command_status(command_status));
1223 * Set the drive's summary status based on the returned status.
1225 * XXX testing shows that a failed JBOD drive comes back at next
1226 * boot in "queued for expansion" mode. WTF?
1228 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1232 ciss_release_request(cr);
1236 /************************************************************************
1237 * Notify the adapter of a config update.
1240 ciss_update_config(struct ciss_softc *sc)
1246 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1247 for (i = 0; i < 1000; i++) {
1248 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1249 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1257 /************************************************************************
1258 * Accept new media into a logical drive.
1260 * XXX The drive has previously been offline; it would be good if we
1261 * could make sure it's not open right now.
1264 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async)
1266 struct ciss_request *cr;
1267 struct ciss_command *cc;
1268 struct ciss_bmic_cdb *cbc;
1271 debug(0, "bringing logical drive %d back online %ssynchronously",
1272 ldrive, async ? "a" : "");
1275 * Build a CISS BMIC command to bring the drive back online.
1277 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1280 cc = CISS_FIND_COMMAND(cr);
1281 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1282 cbc->log_drive = ldrive;
1285 * Dispatch the request asynchronously if we can't sleep waiting
1286 * for it to complete.
1289 cr->cr_complete = ciss_accept_media_complete;
1290 if ((error = ciss_start(cr)) != 0)
1295 * Submit the request and wait for it to complete.
1297 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1298 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1304 * Call the completion callback manually.
1306 ciss_accept_media_complete(cr);
1311 ciss_release_request(cr);
1316 ciss_accept_media_complete(struct ciss_request *cr)
1323 ciss_report_request(cr, &command_status, NULL);
1324 switch(command_status) {
1325 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1326 /* we should get a logical drive status changed event here */
1329 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1330 ciss_name_command_status(command_status));
1333 ciss_release_request(cr);
1336 /************************************************************************
1337 * Release adapter resources.
1340 ciss_free(struct ciss_softc *sc)
1344 /* we're going away */
1345 sc->ciss_flags |= CISS_FLAG_ABORTING;
1347 /* terminate the periodic heartbeat routine */
1348 untimeout(ciss_periodic, sc, sc->ciss_periodic);
1350 /* cancel the Event Notify chain */
1351 ciss_notify_abort(sc);
1353 /* free the controller data */
1354 if (sc->ciss_id != NULL)
1355 free(sc->ciss_id, CISS_MALLOC_CLASS);
1357 /* release I/O resources */
1358 if (sc->ciss_regs_resource != NULL)
1359 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1360 sc->ciss_regs_rid, sc->ciss_regs_resource);
1361 if (sc->ciss_cfg_resource != NULL)
1362 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1363 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1364 if (sc->ciss_intr != NULL)
1365 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1366 if (sc->ciss_irq_resource != NULL)
1367 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1368 sc->ciss_irq_rid, sc->ciss_irq_resource);
1370 /* destroy DMA tags */
1371 if (sc->ciss_parent_dmat)
1372 bus_dma_tag_destroy(sc->ciss_parent_dmat);
1373 if (sc->ciss_buffer_dmat)
1374 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1376 /* destroy command memory and DMA tag */
1377 if (sc->ciss_command != NULL) {
1378 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1379 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1381 if (sc->ciss_buffer_dmat)
1382 bus_dma_tag_destroy(sc->ciss_command_dmat);
1384 /* disconnect from CAM */
1385 if (sc->ciss_cam_sim) {
1386 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim));
1387 cam_sim_free(sc->ciss_cam_sim);
1389 if (sc->ciss_cam_devq)
1390 cam_simq_release(sc->ciss_cam_devq);
1391 /* XXX what about ciss_cam_path? */
1394 /************************************************************************
1395 * Give a command to the adapter.
1397 * Note that this uses the simple transport layer directly. If we
1398 * want to add support for other layers, we'll need a switch of some
1401 * Note that the simple transport layer has no way of refusing a
1402 * command; we only have as many request structures as the adapter
1403 * supports commands, so we don't have to check (this presumes that
1404 * the adapter can handle commands as fast as we throw them at it).
1407 ciss_start(struct ciss_request *cr)
1409 struct ciss_command *cc; /* XXX debugging only */
1412 cc = CISS_FIND_COMMAND(cr);
1413 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
1416 * Map the request's data.
1418 if ((error = ciss_map_request(cr)))
1422 ciss_print_request(cr);
1426 * Post the command to the adapter.
1428 ciss_enqueue_busy(cr);
1429 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr));
1434 /************************************************************************
1435 * Fetch completed request(s) from the adapter, queue them for
1436 * completion handling.
1438 * Note that this uses the simple transport layer directly. If we
1439 * want to add support for other layers, we'll need a switch of some
1442 * Note that the simple transport mechanism does not require any
1443 * reentrancy protection; the OPQ read is atomic. If there is a
1444 * chance of a race with something else that might move the request
1445 * off the busy list, then we will have to lock against that
1446 * (eg. timeouts, etc.)
1449 ciss_done(struct ciss_softc *sc)
1451 struct ciss_request *cr;
1452 struct ciss_command *cc;
1453 u_int32_t tag, index;
1459 * Loop quickly taking requests from the adapter and moving them
1460 * from the busy queue to the completed queue.
1465 /* see if the OPQ contains anything */
1466 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc))
1469 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
1470 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
1473 debug(2, "completed command %d%s", index,
1474 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
1475 if (index >= sc->ciss_max_requests) {
1476 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
1479 cr = &(sc->ciss_request[index]);
1480 cc = CISS_FIND_COMMAND(cr);
1481 cc->header.host_tag = tag; /* not updated by adapter */
1482 if (ciss_remove_busy(cr)) {
1483 /* assume this is garbage out of the adapter */
1484 ciss_printf(sc, "completed nonbusy request %d\n", index);
1486 ciss_enqueue_complete(cr);
1492 * Invoke completion processing. If we can defer this out of
1493 * interrupt context, that'd be good.
1499 /************************************************************************
1500 * Take an interrupt from the adapter.
1503 ciss_intr(void *arg)
1505 struct ciss_softc *sc = (struct ciss_softc *)arg;
1508 * The only interrupt we recognise indicates that there are
1509 * entries in the outbound post queue.
1514 /************************************************************************
1515 * Process completed requests.
1517 * Requests can be completed in three fashions:
1519 * - by invoking a callback function (cr_complete is non-null)
1520 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
1521 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
1524 ciss_complete(struct ciss_softc *sc)
1526 struct ciss_request *cr;
1531 * Loop taking requests off the completed queue and performing
1532 * completion processing on them.
1535 if ((cr = ciss_dequeue_complete(sc)) == NULL)
1537 ciss_unmap_request(cr);
1540 * If the request has a callback, invoke it.
1542 if (cr->cr_complete != NULL) {
1543 cr->cr_complete(cr);
1548 * If someone is sleeping on this request, wake them up.
1550 if (cr->cr_flags & CISS_REQ_SLEEP) {
1551 cr->cr_flags &= ~CISS_REQ_SLEEP;
1557 * If someone is polling this request for completion, signal.
1559 if (cr->cr_flags & CISS_REQ_POLL) {
1560 cr->cr_flags &= ~CISS_REQ_POLL;
1565 * Give up and throw the request back on the free queue. This
1566 * should never happen; resources will probably be lost.
1568 ciss_printf(sc, "WARNING: completed command with no submitter\n");
1569 ciss_enqueue_free(cr);
1573 /************************************************************************
1574 * Report on the completion status of a request, and pass back SCSI
1575 * and command status values.
1578 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status)
1580 struct ciss_command *cc;
1581 struct ciss_error_info *ce;
1585 cc = CISS_FIND_COMMAND(cr);
1586 ce = (struct ciss_error_info *)&(cc->sg[0]);
1589 * We don't consider data under/overrun an error for the Report
1590 * Logical/Physical LUNs commands.
1592 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
1593 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
1594 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) {
1595 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
1596 debug(2, "ignoring irrelevant under/overrun error");
1600 * Check the command's error bit, if clear, there's no status and
1603 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
1604 if (scsi_status != NULL)
1605 *scsi_status = SCSI_STATUS_OK;
1606 if (command_status != NULL)
1607 *command_status = CISS_CMD_STATUS_SUCCESS;
1610 if (command_status != NULL)
1611 *command_status = ce->command_status;
1612 if (scsi_status != NULL) {
1613 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
1614 *scsi_status = ce->scsi_status;
1620 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
1621 ce->command_status, ciss_name_command_status(ce->command_status),
1623 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
1624 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n",
1625 ce->additional_error_info.invalid_command.offense_size,
1626 ce->additional_error_info.invalid_command.offense_offset,
1627 ce->additional_error_info.invalid_command.offense_value);
1633 /************************************************************************
1634 * Issue a request and don't return until it's completed.
1636 * Depending on adapter status, we may poll or sleep waiting for
1640 ciss_synch_request(struct ciss_request *cr, int timeout)
1642 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
1643 return(ciss_wait_request(cr, timeout));
1645 return(ciss_poll_request(cr, timeout));
1649 /************************************************************************
1650 * Issue a request and poll for completion.
1652 * Timeout in milliseconds.
1655 ciss_poll_request(struct ciss_request *cr, int timeout)
1661 cr->cr_flags |= CISS_REQ_POLL;
1662 if ((error = ciss_start(cr)) != 0)
1666 ciss_done(cr->cr_sc);
1667 if (!(cr->cr_flags & CISS_REQ_POLL))
1670 } while (timeout-- >= 0);
1671 return(EWOULDBLOCK);
1674 /************************************************************************
1675 * Issue a request and sleep waiting for completion.
1677 * Timeout in milliseconds. Note that a spurious wakeup will reset
1681 ciss_wait_request(struct ciss_request *cr, int timeout)
1687 cr->cr_flags |= CISS_REQ_SLEEP;
1688 if ((error = ciss_start(cr)) != 0)
1692 while (cr->cr_flags & CISS_REQ_SLEEP) {
1693 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000);
1695 * On wakeup or interruption due to restartable activity, go
1696 * back and check to see if we're done.
1698 if ((error == 0) || (error == ERESTART)) {
1703 * Timeout, interrupted system call, etc.
1712 /************************************************************************
1713 * Abort a request. Note that a potential exists here to race the
1714 * request being completed; the caller must deal with this.
1717 ciss_abort_request(struct ciss_request *ar)
1719 struct ciss_request *cr;
1720 struct ciss_command *cc;
1721 struct ciss_message_cdb *cmc;
1727 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
1730 /* build the abort command */
1731 cc = CISS_FIND_COMMAND(cr);
1732 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
1733 cc->header.address.physical.target = 0;
1734 cc->header.address.physical.bus = 0;
1735 cc->cdb.cdb_length = sizeof(*cmc);
1736 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
1737 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1738 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
1739 cc->cdb.timeout = 30;
1741 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
1742 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
1743 cmc->type = CISS_MESSAGE_ABORT_TASK;
1744 cmc->abort_tag = ar->cr_tag; /* endianness?? */
1747 * Send the request and wait for a response. If we believe we
1748 * aborted the request OK, clear the flag that indicates it's
1751 error = ciss_synch_request(cr, 35 * 1000);
1753 error = ciss_report_request(cr, NULL, NULL);
1754 ciss_release_request(cr);
1761 /************************************************************************
1762 * Fetch and initialise a request
1765 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
1767 struct ciss_request *cr;
1772 * Get a request and clean it up.
1774 if ((cr = ciss_dequeue_free(sc)) == NULL)
1779 cr->cr_complete = NULL;
1781 ciss_preen_command(cr);
1787 ciss_preen_command(struct ciss_request *cr)
1789 struct ciss_command *cc;
1793 * Clean up the command structure.
1795 * Note that we set up the error_info structure here, since the
1796 * length can be overwritten by any command.
1798 cc = CISS_FIND_COMMAND(cr);
1799 cc->header.sg_in_list = 0; /* kinda inefficient this way */
1800 cc->header.sg_total = 0;
1801 cc->header.host_tag = cr->cr_tag << 2;
1802 cc->header.host_tag_zeroes = 0;
1803 cmdphys = CISS_FIND_COMMANDPHYS(cr);
1804 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
1805 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
1809 /************************************************************************
1810 * Release a request to the free list.
1813 ciss_release_request(struct ciss_request *cr)
1815 struct ciss_softc *sc;
1821 /* release the request to the free queue */
1822 ciss_requeue_free(cr);
1825 /************************************************************************
1826 * Allocate a request that will be used to send a BMIC command. Do some
1827 * of the common setup here to avoid duplicating it everywhere else.
1830 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
1831 int opcode, void **bufp, size_t bufsize)
1833 struct ciss_request *cr;
1834 struct ciss_command *cc;
1835 struct ciss_bmic_cdb *cbc;
1848 if ((error = ciss_get_request(sc, &cr)) != 0)
1852 * Allocate data storage if requested, determine the data direction.
1855 if ((bufsize > 0) && (bufp != NULL)) {
1856 if (*bufp == NULL) {
1857 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1860 dataout = 1; /* we are given a buffer, so we are writing */
1865 * Build a CISS BMIC command to get the logical drive ID.
1868 cr->cr_length = bufsize;
1870 cr->cr_flags = CISS_REQ_DATAIN;
1872 cc = CISS_FIND_COMMAND(cr);
1873 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1874 cc->header.address.physical.bus = 0;
1875 cc->header.address.physical.target = 0;
1876 cc->cdb.cdb_length = sizeof(*cbc);
1877 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1878 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1879 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
1880 cc->cdb.timeout = 0;
1882 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1883 bzero(cbc, sizeof(*cbc));
1884 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
1885 cbc->bmic_opcode = opcode;
1886 cbc->size = htons((u_int16_t)bufsize);
1891 ciss_release_request(cr);
1892 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1893 free(buf, CISS_MALLOC_CLASS);
1896 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1902 /************************************************************************
1903 * Handle a command passed in from userspace.
1906 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
1908 struct ciss_request *cr;
1909 struct ciss_command *cc;
1910 struct ciss_error_info *ce;
1920 if ((error = ciss_get_request(sc, &cr)) != 0)
1922 cc = CISS_FIND_COMMAND(cr);
1925 * Allocate an in-kernel databuffer if required, copy in user data.
1927 cr->cr_length = ioc->buf_size;
1928 if (ioc->buf_size > 0) {
1929 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) {
1933 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
1934 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1940 * Build the request based on the user command.
1942 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
1943 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
1945 /* XXX anything else to populate here? */
1950 if ((error = ciss_synch_request(cr, 60 * 1000))) {
1951 debug(0, "request failed - %d", error);
1956 * Copy the results back to the user.
1958 ce = (struct ciss_error_info *)&(cc->sg[0]);
1959 bcopy(ce, &ioc->error_info, sizeof(*ce));
1960 if ((ioc->buf_size > 0) &&
1961 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
1962 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1970 if ((cr != NULL) && (cr->cr_data != NULL))
1971 free(cr->cr_data, CISS_MALLOC_CLASS);
1973 ciss_release_request(cr);
1977 /************************************************************************
1978 * Map a request into bus-visible space, initialise the scatter/gather
1982 ciss_map_request(struct ciss_request *cr)
1984 struct ciss_softc *sc;
1990 /* check that mapping is necessary */
1991 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
1994 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length,
1995 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0);
1997 if (cr->cr_flags & CISS_REQ_DATAIN)
1998 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
1999 if (cr->cr_flags & CISS_REQ_DATAOUT)
2000 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2002 cr->cr_flags |= CISS_REQ_MAPPED;
2007 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2009 struct ciss_command *cc;
2014 cc = (struct ciss_command *)arg;
2015 for (i = 0; i < nseg; i++) {
2016 cc->sg[i].address = segs[i].ds_addr;
2017 cc->sg[i].length = segs[i].ds_len;
2018 cc->sg[i].extension = 0;
2020 /* we leave the s/g table entirely within the command */
2021 cc->header.sg_in_list = nseg;
2022 cc->header.sg_total = nseg;
2025 /************************************************************************
2026 * Unmap a request from bus-visible space.
2029 ciss_unmap_request(struct ciss_request *cr)
2031 struct ciss_softc *sc;
2037 /* check that unmapping is necessary */
2038 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
2041 if (cr->cr_flags & CISS_REQ_DATAIN)
2042 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2043 if (cr->cr_flags & CISS_REQ_DATAOUT)
2044 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2046 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2047 cr->cr_flags &= ~CISS_REQ_MAPPED;
2050 /************************************************************************
2051 * Attach the driver to CAM.
2053 * We put all the logical drives on a single SCSI bus.
2056 ciss_cam_init(struct ciss_softc *sc)
2062 * Allocate a devq. We can reuse this for the masked physical
2063 * devices if we decide to export these as well.
2065 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) {
2066 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2073 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc,
2074 device_get_unit(sc->ciss_dev),
2075 sc->ciss_max_requests - 2,
2077 sc->ciss_cam_devq)) == NULL) {
2078 ciss_printf(sc, "can't allocate CAM SIM\n");
2083 * Register bus 0 (the 'logical drives' bus) with this SIM.
2085 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) {
2086 ciss_printf(sc, "can't register SCSI bus 0\n");
2091 * Initiate a rescan of the bus.
2093 ciss_cam_rescan_all(sc);
2098 /************************************************************************
2099 * Initiate a rescan of the 'logical devices' SIM
2102 ciss_cam_rescan_target(struct ciss_softc *sc, int target)
2108 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) {
2109 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2113 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0)
2115 ciss_printf(sc, "rescan failed (can't create path)\n");
2119 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/);
2120 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2121 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
2122 ccb->crcn.flags = CAM_FLAG_NONE;
2125 /* scan is now in progress */
2129 ciss_cam_rescan_all(struct ciss_softc *sc)
2131 return(ciss_cam_rescan_target(sc, 0));
2135 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2137 xpt_free_path(ccb->ccb_h.path);
2141 /************************************************************************
2142 * Handle requests coming from CAM
2145 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2147 struct ciss_softc *sc;
2148 struct ccb_scsiio *csio;
2151 sc = cam_sim_softc(sim);
2152 csio = (struct ccb_scsiio *)&ccb->csio;
2153 target = csio->ccb_h.target_id;
2155 switch (ccb->ccb_h.func_code) {
2157 /* perform SCSI I/O */
2159 if (!ciss_cam_action_io(sim, csio))
2163 /* perform geometry calculations */
2164 case XPT_CALC_GEOMETRY:
2166 struct ccb_calc_geometry *ccg = &ccb->ccg;
2167 struct ciss_ldrive *ld = &sc->ciss_logical[target];
2169 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2172 * Use the cached geometry settings unless the fault tolerance
2175 if (ld->cl_geometry.fault_tolerance == 0xFF) {
2176 u_int32_t secs_per_cylinder;
2179 ccg->secs_per_track = 32;
2180 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2181 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2183 ccg->heads = ld->cl_geometry.heads;
2184 ccg->secs_per_track = ld->cl_geometry.sectors;
2185 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2187 ccb->ccb_h.status = CAM_REQ_CMP;
2191 /* handle path attribute inquiry */
2194 struct ccb_pathinq *cpi = &ccb->cpi;
2196 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2198 cpi->version_num = 1;
2199 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2200 cpi->target_sprt = 0;
2202 cpi->max_target = CISS_MAX_LOGICAL;
2203 cpi->max_lun = 0; /* 'logical drive' channel only */
2204 cpi->initiator_id = CISS_MAX_LOGICAL;
2205 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2206 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
2207 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2208 cpi->unit_number = cam_sim_unit(sim);
2209 cpi->bus_id = cam_sim_bus(sim);
2210 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
2211 ccb->ccb_h.status = CAM_REQ_CMP;
2215 case XPT_GET_TRAN_SETTINGS:
2217 struct ccb_trans_settings *cts = &ccb->cts;
2220 bus = cam_sim_bus(sim);
2221 target = cts->ccb_h.target_id;
2223 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
2226 /* disconnect always OK */
2227 cts->flags |= CCB_TRANS_DISC_ENB;
2228 cts->valid |= CCB_TRANS_DISC_VALID;
2230 cts->ccb_h.status = CAM_REQ_CMP;
2234 default: /* we can't do this */
2235 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
2236 ccb->ccb_h.status = CAM_REQ_INVALID;
2243 /************************************************************************
2244 * Handle a CAM SCSI I/O request.
2247 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
2249 struct ciss_softc *sc;
2251 struct ciss_request *cr;
2252 struct ciss_command *cc;
2255 sc = cam_sim_softc(sim);
2256 bus = cam_sim_bus(sim);
2257 target = csio->ccb_h.target_id;
2259 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
2261 /* check for I/O attempt to nonexistent device */
2263 (target > CISS_MAX_LOGICAL) ||
2264 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) {
2265 debug(3, " device does not exist");
2266 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2269 /* firmware does not support commands > 10 bytes */
2270 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) {
2271 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE);
2272 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2275 /* check that the CDB pointer is not to a physical address */
2276 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
2277 debug(3, " CDB pointer is to physical address");
2278 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2281 /* if there is data transfer, it must be to/from a virtual address */
2282 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2283 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
2284 debug(3, " data pointer is to physical address");
2285 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2287 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
2288 debug(3, " data has premature s/g setup");
2289 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2293 /* abandon aborted ccbs or those that have failed validation */
2294 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2295 debug(3, "abandoning CCB due to abort/validation failure");
2299 /* handle emulation of some SCSI commands ourself */
2300 if (ciss_cam_emulate(sc, csio))
2304 * Get a request to manage this command. If we can't, return the
2305 * ccb, freeze the queue and flag so that we unfreeze it when a
2306 * request completes.
2308 if ((error = ciss_get_request(sc, &cr)) != 0) {
2309 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2310 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2315 * Build the command.
2317 cc = CISS_FIND_COMMAND(cr);
2318 cr->cr_data = csio->data_ptr;
2319 cr->cr_length = csio->dxfer_len;
2320 cr->cr_complete = ciss_cam_complete;
2321 cr->cr_private = csio;
2323 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
2324 cc->header.address.logical.lun = target;
2325 cc->cdb.cdb_length = csio->cdb_len;
2326 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2327 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
2328 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2329 cr->cr_flags = CISS_REQ_DATAOUT;
2330 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
2331 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2332 cr->cr_flags = CISS_REQ_DATAIN;
2333 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2336 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2338 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
2339 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
2340 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
2342 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
2346 * Submit the request to the adapter.
2348 * Note that this may fail if we're unable to map the request (and
2349 * if we ever learn a transport layer other than simple, may fail
2350 * if the adapter rejects the command).
2352 if ((error = ciss_start(cr)) != 0) {
2353 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2354 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2355 ciss_release_request(cr);
2362 /************************************************************************
2363 * Emulate SCSI commands the adapter doesn't handle as we might like.
2366 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
2372 target = csio->ccb_h.target_id;
2373 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
2374 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
2377 * Handle requests for volumes that don't exist. A selection timeout
2378 * is slightly better than an illegal request. Other errors might be
2381 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) {
2382 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2383 xpt_done((union ccb *)csio);
2388 * Handle requests for volumes that exist but are offline.
2390 * I/O operations should fail, everything else should work.
2392 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) {
2400 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2401 xpt_done((union ccb *)csio);
2407 /* if we have to fake Synchronise Cache */
2408 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
2411 * If this is a Synchronise Cache command, typically issued when
2412 * a device is closed, flush the adapter and complete now.
2414 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2415 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
2416 ciss_flush_adapter(sc);
2417 csio->ccb_h.status = CAM_REQ_CMP;
2418 xpt_done((union ccb *)csio);
2426 /************************************************************************
2427 * Check for possibly-completed commands.
2430 ciss_cam_poll(struct cam_sim *sim)
2432 struct ciss_softc *sc = cam_sim_softc(sim);
2439 /************************************************************************
2440 * Handle completion of a command - pass results back through the CCB
2443 ciss_cam_complete(struct ciss_request *cr)
2445 struct ciss_softc *sc;
2446 struct ciss_command *cc;
2447 struct ciss_error_info *ce;
2448 struct ccb_scsiio *csio;
2455 cc = CISS_FIND_COMMAND(cr);
2456 ce = (struct ciss_error_info *)&(cc->sg[0]);
2457 csio = (struct ccb_scsiio *)cr->cr_private;
2460 * Extract status values from request.
2462 ciss_report_request(cr, &command_status, &scsi_status);
2463 csio->scsi_status = scsi_status;
2466 * Handle specific SCSI status values.
2468 switch(scsi_status) {
2469 /* no status due to adapter error */
2471 debug(0, "adapter error");
2472 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2475 /* no status due to command completed OK */
2476 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
2477 debug(2, "SCSI_STATUS_OK");
2478 csio->ccb_h.status = CAM_REQ_CMP;
2481 /* check condition, sense data included */
2482 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
2483 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d",
2484 ce->sense_length, ce->residual_count);
2485 bzero(&csio->sense_data, SSD_FULL_SIZE);
2486 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
2487 csio->sense_len = ce->sense_length;
2488 csio->resid = ce->residual_count;
2489 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
2492 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
2493 debug(0, "sense key %x", sns->flags & SSD_KEY);
2498 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
2499 debug(0, "SCSI_STATUS_BUSY");
2500 csio->ccb_h.status = CAM_SCSI_BUSY;
2504 debug(0, "unknown status 0x%x", csio->scsi_status);
2505 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2509 /* handle post-command fixup */
2510 ciss_cam_complete_fixup(sc, csio);
2512 /* tell CAM we're ready for more commands */
2513 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
2515 xpt_done((union ccb *)csio);
2516 ciss_release_request(cr);
2519 /********************************************************************************
2520 * Fix up the result of some commands here.
2523 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
2525 struct scsi_inquiry_data *inq;
2526 struct ciss_ldrive *cl;
2529 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2530 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) {
2532 inq = (struct scsi_inquiry_data *)csio->data_ptr;
2533 target = csio->ccb_h.target_id;
2534 cl = &sc->ciss_logical[target];
2536 padstr(inq->vendor, "COMPAQ", 8);
2537 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
2538 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
2543 /********************************************************************************
2544 * Find a peripheral attached at (target)
2546 static struct cam_periph *
2547 ciss_find_periph(struct ciss_softc *sc, int target)
2549 struct cam_periph *periph;
2550 struct cam_path *path;
2553 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0);
2554 if (status == CAM_REQ_CMP) {
2555 periph = cam_periph_find(path, NULL);
2556 xpt_free_path(path);
2563 /********************************************************************************
2564 * Name the device at (target)
2566 * XXX is this strictly correct?
2569 ciss_name_device(struct ciss_softc *sc, int target)
2571 struct cam_periph *periph;
2573 if ((periph = ciss_find_periph(sc, target)) != NULL) {
2574 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number);
2577 sc->ciss_logical[target].cl_name[0] = 0;
2581 /************************************************************************
2582 * Periodic status monitoring.
2585 ciss_periodic(void *arg)
2587 struct ciss_softc *sc;
2591 sc = (struct ciss_softc *)arg;
2594 * Check the adapter heartbeat.
2596 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
2597 sc->ciss_heart_attack++;
2598 debug(0, "adapter heart attack in progress 0x%x/%d",
2599 sc->ciss_heartbeat, sc->ciss_heart_attack);
2600 if (sc->ciss_heart_attack == 3) {
2601 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
2602 /* XXX should reset adapter here */
2605 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
2606 sc->ciss_heart_attack = 0;
2607 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
2611 * If the notify event request has died for some reason, or has
2612 * not started yet, restart it.
2614 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
2615 debug(0, "(re)starting Event Notify chain");
2616 ciss_notify_event(sc);
2622 if (!(sc->ciss_flags & CISS_FLAG_ABORTING))
2623 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz);
2626 /************************************************************************
2627 * Request a notification response from the adapter.
2629 * If (cr) is NULL, this is the first request of the adapter, so
2630 * reset the adapter's message pointer and start with the oldest
2631 * message available.
2634 ciss_notify_event(struct ciss_softc *sc)
2636 struct ciss_request *cr;
2637 struct ciss_command *cc;
2638 struct ciss_notify_cdb *cnc;
2643 cr = sc->ciss_periodic_notify;
2645 /* get a request if we don't already have one */
2647 if ((error = ciss_get_request(sc, &cr)) != 0) {
2648 debug(0, "can't get notify event request");
2651 sc->ciss_periodic_notify = cr;
2652 cr->cr_complete = ciss_notify_complete;
2653 debug(1, "acquired request %d", cr->cr_tag);
2657 * Get a databuffer if we don't already have one, note that the
2658 * adapter command wants a larger buffer than the actual
2661 if (cr->cr_data == NULL) {
2662 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
2663 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2666 /* re-setup the request's command (since we never release it) XXX overkill*/
2667 ciss_preen_command(cr);
2669 /* (re)build the notify event command */
2670 cc = CISS_FIND_COMMAND(cr);
2671 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2672 cc->header.address.physical.bus = 0;
2673 cc->header.address.physical.target = 0;
2675 cc->cdb.cdb_length = sizeof(*cnc);
2676 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2677 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2678 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2679 cc->cdb.timeout = 0; /* no timeout, we hope */
2681 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2682 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
2683 cnc->opcode = CISS_OPCODE_READ;
2684 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
2685 cnc->timeout = 0; /* no timeout, we hope */
2686 cnc->synchronous = 0;
2688 cnc->seek_to_oldest = 0;
2690 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2692 /* submit the request */
2693 error = ciss_start(cr);
2698 if (cr->cr_data != NULL)
2699 free(cr->cr_data, CISS_MALLOC_CLASS);
2700 ciss_release_request(cr);
2702 sc->ciss_periodic_notify = NULL;
2703 debug(0, "can't submit notify event request");
2704 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2706 debug(1, "notify event submitted");
2707 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
2712 ciss_notify_complete(struct ciss_request *cr)
2714 struct ciss_command *cc;
2715 struct ciss_notify *cn;
2716 struct ciss_softc *sc;
2722 cc = CISS_FIND_COMMAND(cr);
2723 cn = (struct ciss_notify *)cr->cr_data;
2727 * Report request results, decode status.
2729 ciss_report_request(cr, &command_status, &scsi_status);
2732 * Abort the chain on a fatal error.
2734 * XXX which of these are actually errors?
2736 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
2737 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
2738 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
2739 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
2740 ciss_name_command_status(command_status));
2741 ciss_release_request(cr);
2742 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2747 * If the adapter gave us a text message, print it.
2749 if (cn->message[0] != 0)
2750 ciss_printf(sc, "*** %.80s\n", cn->message);
2752 debug(0, "notify event class %d subclass %d detail %d",
2753 cn->class, cn->subclass, cn->detail);
2756 * If there's room, save the event for a user-level tool.
2758 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) {
2759 sc->ciss_notify[sc->ciss_notify_head] = *cn;
2760 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS;
2764 * Some events are directly of interest to us.
2766 switch (cn->class) {
2767 case CISS_NOTIFY_LOGICAL:
2768 ciss_notify_logical(sc, cn);
2770 case CISS_NOTIFY_PHYSICAL:
2771 ciss_notify_physical(sc, cn);
2776 * If the response indicates that the notifier has been aborted,
2777 * release the notifier command.
2779 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
2780 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
2781 (cn->detail == 1)) {
2782 debug(0, "notifier exiting");
2783 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2784 ciss_release_request(cr);
2785 sc->ciss_periodic_notify = NULL;
2786 wakeup(&sc->ciss_periodic_notify);
2790 * Send a new notify event command, if we're not aborting.
2792 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
2793 ciss_notify_event(sc);
2797 /************************************************************************
2798 * Abort the Notify Event chain.
2800 * Note that we can't just abort the command in progress; we have to
2801 * explicitly issue an Abort Notify Event command in order for the
2802 * adapter to clean up correctly.
2804 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
2805 * the chain will not restart itself.
2808 ciss_notify_abort(struct ciss_softc *sc)
2810 struct ciss_request *cr;
2811 struct ciss_command *cc;
2812 struct ciss_notify_cdb *cnc;
2813 int error, s, command_status, scsi_status;
2820 /* verify that there's an outstanding command */
2821 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2824 /* get a command to issue the abort with */
2825 if ((error = ciss_get_request(sc, &cr)))
2828 /* get a buffer for the result */
2829 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
2830 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2833 cc = CISS_FIND_COMMAND(cr);
2834 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2835 cc->header.address.physical.bus = 0;
2836 cc->header.address.physical.target = 0;
2837 cc->cdb.cdb_length = sizeof(*cnc);
2838 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2839 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2840 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2841 cc->cdb.timeout = 0; /* no timeout, we hope */
2843 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2844 bzero(cnc, sizeof(*cnc));
2845 cnc->opcode = CISS_OPCODE_WRITE;
2846 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
2847 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2849 ciss_print_request(cr);
2852 * Submit the request and wait for it to complete.
2854 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2855 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
2862 ciss_report_request(cr, &command_status, &scsi_status);
2863 switch(command_status) {
2864 case CISS_CMD_STATUS_SUCCESS:
2866 case CISS_CMD_STATUS_INVALID_COMMAND:
2868 * Some older adapters don't support the CISS version of this
2869 * command. Fall back to using the BMIC version.
2871 error = ciss_notify_abort_bmic(sc);
2876 case CISS_CMD_STATUS_TARGET_STATUS:
2878 * This can happen if the adapter thinks there wasn't an outstanding
2879 * Notify Event command but we did. We clean up here.
2881 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
2882 if (sc->ciss_periodic_notify != NULL)
2883 ciss_release_request(sc->ciss_periodic_notify);
2890 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
2891 ciss_name_command_status(command_status));
2897 * Sleep waiting for the notifier command to complete. Note
2898 * that if it doesn't, we may end up in a bad situation, since
2899 * the adapter may deliver it later. Also note that the adapter
2900 * requires the Notify Event command to be cancelled in order to
2901 * maintain internal bookkeeping.
2904 while (sc->ciss_periodic_notify != NULL) {
2905 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5);
2906 if (error == EWOULDBLOCK) {
2907 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
2914 /* release the cancel request */
2916 if (cr->cr_data != NULL)
2917 free(cr->cr_data, CISS_MALLOC_CLASS);
2918 ciss_release_request(cr);
2921 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2925 /************************************************************************
2926 * Abort the Notify Event chain using a BMIC command.
2929 ciss_notify_abort_bmic(struct ciss_softc *sc)
2931 struct ciss_request *cr;
2932 int error, command_status;
2939 /* verify that there's an outstanding command */
2940 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2944 * Build a BMIC command to cancel the Notify on Event command.
2946 * Note that we are sending a CISS opcode here. Odd.
2948 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
2953 * Submit the request and wait for it to complete.
2955 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2956 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
2963 ciss_report_request(cr, &command_status, NULL);
2964 switch(command_status) {
2965 case CISS_CMD_STATUS_SUCCESS:
2968 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
2969 ciss_name_command_status(command_status));
2976 ciss_release_request(cr);
2980 /************************************************************************
2981 * Handle a notify event relating to the status of a logical drive.
2983 * XXX need to be able to defer some of these to properly handle
2984 * calling the "ID Physical drive" command, unless the 'extended'
2985 * drive IDs are always in BIG_MAP format.
2988 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
2990 struct ciss_ldrive *ld;
2995 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive];
2997 switch (cn->subclass) {
2998 case CISS_NOTIFY_LOGICAL_STATUS:
2999 switch (cn->detail) {
3001 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3002 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3003 cn->data.logical_status.logical_drive, ld->cl_name,
3004 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3005 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3006 cn->data.logical_status.spare_state,
3007 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3010 * Update our idea of the drive's status.
3012 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
3013 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3014 if (ld->cl_lstatus != NULL)
3015 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3019 * Have CAM rescan the drive if its status has changed.
3021 if (ostatus != ld->cl_status)
3022 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive);
3027 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3028 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3029 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
3030 cn->data.logical_status.logical_drive, ld->cl_name);
3031 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1);
3036 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
3037 cn->data.rebuild_aborted.logical_drive,
3038 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name,
3039 (cn->detail == 2) ? "read" : "write");
3044 case CISS_NOTIFY_LOGICAL_ERROR:
3045 if (cn->detail == 0) {
3046 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3047 cn->data.io_error.logical_drive,
3048 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name,
3049 cn->data.io_error.failure_bus,
3050 cn->data.io_error.failure_drive);
3051 /* XXX should we take the drive down at this point, or will we be told? */
3055 case CISS_NOTIFY_LOGICAL_SURFACE:
3056 if (cn->detail == 0)
3057 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
3058 cn->data.consistency_completed.logical_drive,
3059 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name);
3064 /************************************************************************
3065 * Handle a notify event relating to the status of a physical drive.
3068 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
3073 /************************************************************************
3077 ciss_print_request(struct ciss_request *cr)
3079 struct ciss_softc *sc;
3080 struct ciss_command *cc;
3084 cc = CISS_FIND_COMMAND(cr);
3086 ciss_printf(sc, "REQUEST @ %p\n", cr);
3087 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
3088 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
3089 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
3090 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
3091 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
3092 switch(cc->header.address.mode.mode) {
3093 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
3094 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
3095 ciss_printf(sc, " physical bus %d target %d\n",
3096 cc->header.address.physical.bus, cc->header.address.physical.target);
3098 case CISS_HDR_ADDRESS_MODE_LOGICAL:
3099 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
3102 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
3103 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
3104 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
3105 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
3107 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
3108 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
3109 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
3110 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
3111 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
3112 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
3113 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
3114 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
3116 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
3117 /* XXX print error info */
3119 /* since we don't use chained s/g, don't support it here */
3120 for (i = 0; i < cc->header.sg_in_list; i++) {
3122 ciss_printf(sc, " ");
3123 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
3124 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
3130 /************************************************************************
3131 * Print information about the status of a logical drive.
3134 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
3138 if (ld->cl_lstatus == NULL) {
3139 printf("does not exist\n");
3143 /* print drive status */
3144 switch(ld->cl_lstatus->status) {
3145 case CISS_LSTATUS_OK:
3148 case CISS_LSTATUS_INTERIM_RECOVERY:
3149 printf("in interim recovery mode\n");
3151 case CISS_LSTATUS_READY_RECOVERY:
3152 printf("ready to begin recovery\n");
3154 case CISS_LSTATUS_RECOVERING:
3155 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3156 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3157 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
3158 bus, target, ld->cl_lstatus->blocks_to_recover);
3160 case CISS_LSTATUS_EXPANDING:
3161 printf("being expanded, %u blocks remaining\n",
3162 ld->cl_lstatus->blocks_to_recover);
3164 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3165 printf("queued for expansion\n");
3167 case CISS_LSTATUS_FAILED:
3168 printf("queued for expansion\n");
3170 case CISS_LSTATUS_WRONG_PDRIVE:
3171 printf("wrong physical drive inserted\n");
3173 case CISS_LSTATUS_MISSING_PDRIVE:
3174 printf("missing a needed physical drive\n");
3176 case CISS_LSTATUS_BECOMING_READY:
3177 printf("becoming ready\n");
3181 /* print failed physical drives */
3182 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
3183 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
3184 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
3187 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
3188 ld->cl_lstatus->drive_failure_map[i]);
3193 /************************************************************************
3194 * Print information about the controller/driver.
3197 ciss_print_adapter(struct ciss_softc *sc)
3201 ciss_printf(sc, "ADAPTER:\n");
3202 for (i = 0; i < CISSQ_COUNT; i++) {
3203 ciss_printf(sc, "%s %d/%d\n",
3205 i == 1 ? "busy" : "complete",
3206 sc->ciss_qstat[i].q_length,
3207 sc->ciss_qstat[i].q_max);
3209 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
3210 ciss_printf(sc, "notify_head/tail %d/%d\n",
3211 sc->ciss_notify_head, sc->ciss_notify_tail);
3212 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
3213 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
3215 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
3216 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
3217 ciss_print_ldrive(sc, sc->ciss_logical + i);
3220 for (i = 1; i < sc->ciss_max_requests; i++)
3221 ciss_print_request(sc->ciss_request + i);
3229 struct ciss_softc *sc;
3231 sc = devclass_get_softc(devclass_find("ciss"), 0);
3233 printf("no ciss controllers\n");
3235 ciss_print_adapter(sc);
3240 /************************************************************************
3241 * Return a name for a logical drive status value.
3244 ciss_name_ldrive_status(int status)
3247 case CISS_LSTATUS_OK:
3249 case CISS_LSTATUS_FAILED:
3251 case CISS_LSTATUS_NOT_CONFIGURED:
3252 return("not configured");
3253 case CISS_LSTATUS_INTERIM_RECOVERY:
3254 return("interim recovery");
3255 case CISS_LSTATUS_READY_RECOVERY:
3256 return("ready for recovery");
3257 case CISS_LSTATUS_RECOVERING:
3258 return("recovering");
3259 case CISS_LSTATUS_WRONG_PDRIVE:
3260 return("wrong physical drive inserted");
3261 case CISS_LSTATUS_MISSING_PDRIVE:
3262 return("missing physical drive");
3263 case CISS_LSTATUS_EXPANDING:
3264 return("expanding");
3265 case CISS_LSTATUS_BECOMING_READY:
3266 return("becoming ready");
3267 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3268 return("queued for expansion");
3270 return("unknown status");
3273 /************************************************************************
3274 * Return an online/offline/nonexistent value for a logical drive
3278 ciss_decode_ldrive_status(int status)
3281 case CISS_LSTATUS_NOT_CONFIGURED:
3282 return(CISS_LD_NONEXISTENT);
3284 case CISS_LSTATUS_OK:
3285 case CISS_LSTATUS_INTERIM_RECOVERY:
3286 case CISS_LSTATUS_READY_RECOVERY:
3287 case CISS_LSTATUS_RECOVERING:
3288 case CISS_LSTATUS_EXPANDING:
3289 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3290 return(CISS_LD_ONLINE);
3292 case CISS_LSTATUS_FAILED:
3293 case CISS_LSTATUS_WRONG_PDRIVE:
3294 case CISS_LSTATUS_MISSING_PDRIVE:
3295 case CISS_LSTATUS_BECOMING_READY:
3297 return(CISS_LD_OFFLINE);
3302 /************************************************************************
3303 * Return a name for a logical drive's organisation.
3306 ciss_name_ldrive_org(int org)
3309 case CISS_LDRIVE_RAID0:
3311 case CISS_LDRIVE_RAID1:
3313 case CISS_LDRIVE_RAID4:
3315 case CISS_LDRIVE_RAID5:
3321 /************************************************************************
3322 * Return a name for a command status value.
3325 ciss_name_command_status(int status)
3328 case CISS_CMD_STATUS_SUCCESS:
3330 case CISS_CMD_STATUS_TARGET_STATUS:
3331 return("target status");
3332 case CISS_CMD_STATUS_DATA_UNDERRUN:
3333 return("data underrun");
3334 case CISS_CMD_STATUS_DATA_OVERRUN:
3335 return("data overrun");
3336 case CISS_CMD_STATUS_INVALID_COMMAND:
3337 return("invalid command");
3338 case CISS_CMD_STATUS_PROTOCOL_ERROR:
3339 return("protocol error");
3340 case CISS_CMD_STATUS_HARDWARE_ERROR:
3341 return("hardware error");
3342 case CISS_CMD_STATUS_CONNECTION_LOST:
3343 return("connection lost");
3344 case CISS_CMD_STATUS_ABORTED:
3346 case CISS_CMD_STATUS_ABORT_FAILED:
3347 return("abort failed");
3348 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
3349 return("unsolicited abort");
3350 case CISS_CMD_STATUS_TIMEOUT:
3352 case CISS_CMD_STATUS_UNABORTABLE:
3353 return("unabortable");
3355 return("unknown status");
3358 /************************************************************************
3359 * Handle an open on the control device.
3362 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p)
3364 struct ciss_softc *sc;
3368 sc = (struct ciss_softc *)dev->si_drv1;
3370 /* we might want to veto if someone already has us open */
3372 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
3376 /************************************************************************
3377 * Handle the last close on the control device.
3380 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p)
3382 struct ciss_softc *sc;
3386 sc = (struct ciss_softc *)dev->si_drv1;
3388 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
3392 /********************************************************************************
3393 * Handle adapter-specific control operations.
3395 * Note that the API here is compatible with the Linux driver, in order to
3396 * simplify the porting of Compaq's userland tools.
3399 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p)
3401 struct ciss_softc *sc;
3406 sc = (struct ciss_softc *)dev->si_drv1;
3410 case CCISS_GETPCIINFO:
3412 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
3414 pis->bus = pci_get_bus(sc->ciss_dev);
3415 pis->dev_fn = pci_get_slot(sc->ciss_dev);
3416 pis->board_id = pci_get_devid(sc->ciss_dev);
3421 case CCISS_GETINTINFO:
3423 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3425 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
3426 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
3431 case CCISS_SETINTINFO:
3433 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3435 if ((cis->delay == 0) && (cis->count == 0)) {
3441 * XXX apparently this is only safe if the controller is idle,
3442 * we should suspend it before doing this.
3444 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
3445 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
3447 if (ciss_update_config(sc))
3450 /* XXX resume the controller here */
3454 case CCISS_GETNODENAME:
3455 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
3456 sizeof(NodeName_type));
3459 case CCISS_SETNODENAME:
3460 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
3461 sizeof(NodeName_type));
3462 if (ciss_update_config(sc))
3466 case CCISS_GETHEARTBEAT:
3467 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
3470 case CCISS_GETBUSTYPES:
3471 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
3474 case CCISS_GETFIRMVER:
3475 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
3476 sizeof(FirmwareVer_type));
3479 case CCISS_GETDRIVERVER:
3480 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
3483 case CCISS_REVALIDVOLS:
3485 * This is a bit ugly; to do it "right" we really need
3486 * to find any disks that have changed, kick CAM off them,
3487 * then rescan only these disks. It'd be nice if they
3488 * a) told us which disk(s) they were going to play with,
3489 * and b) which ones had arrived. 8(
3493 case CCISS_PASSTHRU:
3494 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr);
3498 debug(0, "unknown ioctl 0x%lx", cmd);
3500 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
3501 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
3502 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
3503 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
3504 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
3505 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
3506 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
3507 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
3508 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
3509 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
3510 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);