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 $
30 * Common Interface for SCSI-3 Support driver.
32 * CISS claims to provide a common interface between a generic SCSI
33 * transport and an intelligent host adapter.
35 * This driver supports CISS as defined in the document "CISS Command
36 * Interface for SCSI-3 Support Open Specification", Version 1.04,
37 * Valence Number 1, dated 20001127, produced by Compaq Computer
38 * Corporation. This document appears to be a hastily and somewhat
39 * arbitrarlily cut-down version of a larger (and probably even more
40 * chaotic and inconsistent) Compaq internal document. Various
41 * details were also gleaned from Compaq's "cciss" driver for Linux.
43 * We provide a shim layer between the CISS interface and CAM,
44 * offloading most of the queueing and being-a-disk chores onto CAM.
45 * Entry to the driver is via the PCI bus attachment (ciss_probe,
46 * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
47 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
48 * citizens and we have to fake up some responses to get reasonable
49 * behaviour out of them. In addition, the CISS command set is by no
50 * means adequate to support the functionality of a RAID controller,
51 * and thus the supported Compaq adapters utilise portions of the
52 * control protocol from earlier Compaq adapter families.
54 * Note that we only support the "simple" transport layer over PCI.
55 * This interface (ab)uses the I2O register set (specifically the post
56 * queues) to exchange commands with the adapter. Other interfaces
57 * are available, but we aren't supposed to know about them, and it is
58 * dubious whether they would provide major performance improvements
59 * except under extreme load.
61 * Currently the only supported CISS adapters are the Compaq Smart
62 * Array 5* series (5300, 5i, 532). Even with only three adapters,
63 * Compaq still manage to have interface variations.
66 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
67 * well as Paul Saab at Yahoo! for their assistance in making this
71 #include <sys/param.h>
72 #include <sys/systm.h>
73 #include <sys/malloc.h>
74 #include <sys/kernel.h>
77 #include <sys/devicestat.h>
81 #include <cam/cam_ccb.h>
82 #include <cam/cam_periph.h>
83 #include <cam/cam_sim.h>
84 #include <cam/cam_xpt_sim.h>
85 #include <cam/scsi/scsi_all.h>
86 #include <cam/scsi/scsi_message.h>
88 #include <machine/clock.h>
89 #include <machine/bus_memio.h>
90 #include <machine/bus.h>
91 #include <machine/endian.h>
92 #include <machine/resource.h>
95 #include <pci/pcireg.h>
96 #include <pci/pcivar.h>
98 #include <dev/ciss/cissreg.h>
99 #include <dev/ciss/cissvar.h>
100 #include <dev/ciss/cissio.h>
102 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers");
105 static int ciss_lookup(device_t dev);
106 static int ciss_probe(device_t dev);
107 static int ciss_attach(device_t dev);
108 static int ciss_detach(device_t dev);
109 static int ciss_shutdown(device_t dev);
111 /* (de)initialisation functions, control wrappers */
112 static int ciss_init_pci(struct ciss_softc *sc);
113 static int ciss_wait_adapter(struct ciss_softc *sc);
114 static int ciss_flush_adapter(struct ciss_softc *sc);
115 static int ciss_init_requests(struct ciss_softc *sc);
116 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
117 int nseg, int error);
118 static int ciss_identify_adapter(struct ciss_softc *sc);
119 static int ciss_init_logical(struct ciss_softc *sc);
120 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
121 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
122 static int ciss_update_config(struct ciss_softc *sc);
123 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async);
124 static void ciss_accept_media_complete(struct ciss_request *cr);
125 static void ciss_free(struct ciss_softc *sc);
127 /* request submission/completion */
128 static int ciss_start(struct ciss_request *cr);
129 static void ciss_done(struct ciss_softc *sc);
130 static void ciss_intr(void *arg);
131 static void ciss_complete(struct ciss_softc *sc);
132 static int ciss_report_request(struct ciss_request *cr, int *command_status,
134 static int ciss_synch_request(struct ciss_request *cr, int timeout);
135 static int ciss_poll_request(struct ciss_request *cr, int timeout);
136 static int ciss_wait_request(struct ciss_request *cr, int timeout);
138 static int ciss_abort_request(struct ciss_request *cr);
141 /* request queueing */
142 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
143 static void ciss_preen_command(struct ciss_request *cr);
144 static void ciss_release_request(struct ciss_request *cr);
146 /* request helpers */
147 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
148 int opcode, void **bufp, size_t bufsize);
149 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
152 static int ciss_map_request(struct ciss_request *cr);
153 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
154 int nseg, int error);
155 static void ciss_unmap_request(struct ciss_request *cr);
158 static int ciss_cam_init(struct ciss_softc *sc);
159 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target);
160 static void ciss_cam_rescan_all(struct ciss_softc *sc);
161 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb);
162 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
163 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
164 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
165 static void ciss_cam_poll(struct cam_sim *sim);
166 static void ciss_cam_complete(struct ciss_request *cr);
167 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
168 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target);
169 static int ciss_name_device(struct ciss_softc *sc, int target);
171 /* periodic status monitoring */
172 static void ciss_periodic(void *arg);
173 static void ciss_notify_event(struct ciss_softc *sc);
174 static void ciss_notify_complete(struct ciss_request *cr);
175 static int ciss_notify_abort(struct ciss_softc *sc);
176 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
177 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
178 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
180 /* debugging output */
181 static void ciss_print_request(struct ciss_request *cr);
182 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
183 static const char *ciss_name_ldrive_status(int status);
184 static int ciss_decode_ldrive_status(int status);
185 static const char *ciss_name_ldrive_org(int org);
186 static const char *ciss_name_command_status(int status);
191 static device_method_t ciss_methods[] = {
192 /* Device interface */
193 DEVMETHOD(device_probe, ciss_probe),
194 DEVMETHOD(device_attach, ciss_attach),
195 DEVMETHOD(device_detach, ciss_detach),
196 DEVMETHOD(device_shutdown, ciss_shutdown),
200 static driver_t ciss_pci_driver = {
203 sizeof(struct ciss_softc)
206 static devclass_t ciss_devclass;
207 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
210 * Control device interface.
212 static d_open_t ciss_open;
213 static d_close_t ciss_close;
214 static d_ioctl_t ciss_ioctl;
216 #define CISS_CDEV_MAJOR 166
218 static struct cdevsw ciss_cdevsw = {
219 ciss_open, ciss_close, noread, nowrite, ciss_ioctl,
220 nopoll, nommap, nostrategy, "ciss", CISS_CDEV_MAJOR,
221 nodump, nopsize, 0, nokqfilter
224 /************************************************************************
225 * CISS adapters amazingly don't have a defined programming interface
226 * value. (One could say some very despairing things about PCI and
227 * people just not getting the general idea.) So we are forced to
228 * stick with matching against subvendor/subdevice, and thus have to
229 * be updated for every new CISS adapter that appears.
231 #define CISS_BOARD_SA5 (1<<0)
232 #define CISS_BOARD_SA5B (1<<1)
240 } ciss_vendor_data[] = {
241 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" },
242 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" },
243 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" },
244 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" },
245 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" },
246 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" },
247 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" },
251 /************************************************************************
252 * Find a match for the device in our list of known adapters.
255 ciss_lookup(device_t dev)
259 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
260 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
261 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
267 /************************************************************************
268 * Match a known CISS adapter.
271 ciss_probe(device_t dev)
275 i = ciss_lookup(dev);
277 device_set_desc(dev, ciss_vendor_data[i].desc);
283 /************************************************************************
284 * Attach the driver to this adapter.
287 ciss_attach(device_t dev)
289 struct ciss_softc *sc;
295 /* print structure/union sizes */
296 debug_struct(ciss_command);
297 debug_struct(ciss_header);
298 debug_union(ciss_device_address);
299 debug_struct(ciss_cdb);
300 debug_struct(ciss_report_cdb);
301 debug_struct(ciss_notify_cdb);
302 debug_struct(ciss_notify);
303 debug_struct(ciss_message_cdb);
304 debug_struct(ciss_error_info_pointer);
305 debug_struct(ciss_error_info);
306 debug_struct(ciss_sg_entry);
307 debug_struct(ciss_config_table);
308 debug_struct(ciss_bmic_cdb);
309 debug_struct(ciss_bmic_id_ldrive);
310 debug_struct(ciss_bmic_id_lstatus);
311 debug_struct(ciss_bmic_id_table);
312 debug_struct(ciss_bmic_id_pdrive);
313 debug_struct(ciss_bmic_blink_pdrive);
314 debug_struct(ciss_bmic_flush_cache);
315 debug_const(CISS_MAX_REQUESTS);
316 debug_const(CISS_MAX_LOGICAL);
317 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
318 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
319 debug_const(CISS_COMMAND_ALLOC_SIZE);
320 debug_const(CISS_COMMAND_SG_LENGTH);
322 debug_type(cciss_pci_info_struct);
323 debug_type(cciss_coalint_struct);
324 debug_type(cciss_coalint_struct);
325 debug_type(NodeName_type);
326 debug_type(NodeName_type);
327 debug_type(Heartbeat_type);
328 debug_type(BusTypes_type);
329 debug_type(FirmwareVer_type);
330 debug_type(DriverVer_type);
331 debug_type(IOCTL_Command_struct);
334 sc = device_get_softc(dev);
338 * Work out adapter type.
340 i = ciss_lookup(dev);
341 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
342 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
343 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
344 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
346 /* really an error on our part */
347 ciss_printf(sc, "unable to determine hardware type\n");
353 * Do PCI-specific init.
355 if ((error = ciss_init_pci(sc)) != 0)
359 * Initialise driver queues.
363 ciss_initq_complete(sc);
366 * Initialise command/request pool.
368 if ((error = ciss_init_requests(sc)) != 0)
372 * Get adapter information.
374 if ((error = ciss_identify_adapter(sc)) != 0)
378 * Build our private table of logical devices.
380 if ((error = ciss_init_logical(sc)) != 0)
384 * Enable interrupts so that the CAM scan can complete.
386 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
389 * Initialise the CAM interface.
391 if ((error = ciss_cam_init(sc)) != 0)
395 * Start the heartbeat routine and event chain.
400 * Create the control device.
402 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
403 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
404 "ciss%d", device_get_unit(sc->ciss_dev));
405 sc->ciss_dev_t->si_drv1 = sc;
408 * The adapter is running; synchronous commands can now sleep
409 * waiting for an interrupt to signal completion.
411 sc->ciss_flags |= CISS_FLAG_RUNNING;
420 /************************************************************************
421 * Detach the driver from this adapter.
424 ciss_detach(device_t dev)
426 struct ciss_softc *sc = device_get_softc(dev);
430 /* flush adapter cache */
431 ciss_flush_adapter(sc);
433 /* release all resources */
440 /************************************************************************
441 * Prepare adapter for system shutdown.
444 ciss_shutdown(device_t dev)
446 struct ciss_softc *sc = device_get_softc(dev);
450 /* flush adapter cache */
451 ciss_flush_adapter(sc);
456 /************************************************************************
457 * Perform PCI-specific attachment actions.
460 ciss_init_pci(struct ciss_softc *sc)
462 uintptr_t cbase, csize, cofs;
468 * Allocate register window first (we need this to find the config
472 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
473 if ((sc->ciss_regs_resource =
474 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid,
475 0, ~0, 1, RF_ACTIVE)) == NULL) {
476 ciss_printf(sc, "can't allocate register window\n");
479 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
480 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
483 * Find the BAR holding the config structure. If it's not the one
484 * we already mapped for registers, map it too.
486 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
487 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
488 if ((sc->ciss_cfg_resource =
489 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid,
490 0, ~0, 1, RF_ACTIVE)) == NULL) {
491 ciss_printf(sc, "can't allocate config window\n");
494 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
495 csize = rman_get_end(sc->ciss_cfg_resource) -
496 rman_get_start(sc->ciss_cfg_resource) + 1;
498 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
499 csize = rman_get_end(sc->ciss_regs_resource) -
500 rman_get_start(sc->ciss_regs_resource) + 1;
502 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
505 * Use the base/size/offset values we just calculated to
506 * sanity-check the config structure. If it's OK, point to it.
508 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
509 ciss_printf(sc, "config table outside window\n");
512 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
513 debug(1, "config struct at %p", sc->ciss_cfg);
516 * Validate the config structure. If we supported other transport
517 * methods, we could select amongst them at this point in time.
519 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
520 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
521 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
522 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
525 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) ||
526 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) {
527 ciss_printf(sc, "adapter interface specification (%d) unsupported\n",
528 sc->ciss_cfg->valence);
533 * Put the board into simple mode, and tell it we're using the low
534 * 4GB of RAM. Set the default interrupt coalescing options.
536 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) {
537 ciss_printf(sc, "adapter does not support 'simple' transport layer\n");
540 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE;
541 sc->ciss_cfg->command_physlimit = 0;
542 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
543 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
545 if (ciss_update_config(sc)) {
546 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
547 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
550 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) {
552 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
553 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method);
558 * Wait for the adapter to come ready.
560 if ((error = ciss_wait_adapter(sc)) != 0)
564 * Turn off interrupts before we go routing anything.
566 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
569 * Allocate and set up our interrupt.
571 sc->ciss_irq_rid = 0;
572 if ((sc->ciss_irq_resource =
573 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1,
574 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
575 ciss_printf(sc, "can't allocate interrupt\n");
578 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc,
580 ciss_printf(sc, "can't set up interrupt\n");
585 * Allocate the parent bus DMA tag appropriate for our PCI
588 * Note that "simple" adapters can only address within a 32-bit
591 if (bus_dma_tag_create(NULL, /* parent */
592 1, 0, /* alignment, boundary */
593 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
594 BUS_SPACE_MAXADDR, /* highaddr */
595 NULL, NULL, /* filter, filterarg */
596 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
597 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
598 BUS_DMA_ALLOCNOW, /* flags */
599 &sc->ciss_parent_dmat)) {
600 ciss_printf(sc, "can't allocate parent DMA tag\n");
605 * Create DMA tag for mapping buffers into adapter-addressable
608 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
609 1, 0, /* alignment, boundary */
610 BUS_SPACE_MAXADDR, /* lowaddr */
611 BUS_SPACE_MAXADDR, /* highaddr */
612 NULL, NULL, /* filter, filterarg */
613 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
614 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
616 &sc->ciss_buffer_dmat)) {
617 ciss_printf(sc, "can't allocate buffer DMA tag\n");
623 /************************************************************************
624 * Wait for the adapter to come ready.
627 ciss_wait_adapter(struct ciss_softc *sc)
634 * Wait for the adapter to come ready.
636 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
637 ciss_printf(sc, "waiting for adapter to come ready...\n");
638 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
639 DELAY(1000000); /* one second */
641 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
649 /************************************************************************
650 * Flush the adapter cache.
653 ciss_flush_adapter(struct ciss_softc *sc)
655 struct ciss_request *cr;
656 struct ciss_bmic_flush_cache *cbfc;
657 int error, command_status;
665 * Build a BMIC request to flush the cache. We don't disable
666 * it, as we may be going to do more I/O (eg. we are emulating
667 * the Synchronise Cache command).
669 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
673 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
674 (void **)&cbfc, sizeof(*cbfc))) != 0)
678 * Submit the request and wait for it to complete.
680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
681 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
688 ciss_report_request(cr, &command_status, NULL);
689 switch(command_status) {
690 case CISS_CMD_STATUS_SUCCESS:
693 ciss_printf(sc, "error flushing cache (%s)\n",
694 ciss_name_command_status(command_status));
701 free(cbfc, CISS_MALLOC_CLASS);
703 ciss_release_request(cr);
707 /************************************************************************
708 * Allocate memory for the adapter command structures, initialise
709 * the request structures.
711 * Note that the entire set of commands are allocated in a single
715 ciss_init_requests(struct ciss_softc *sc)
717 struct ciss_request *cr;
723 * Calculate the number of request structures/commands we are
724 * going to provide for this adapter.
726 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
728 if (1/*bootverbose*/)
729 ciss_printf(sc, "using %d of %d available commands\n",
730 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
733 * Create the DMA tag for commands.
735 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
736 1, 0, /* alignment, boundary */
737 BUS_SPACE_MAXADDR, /* lowaddr */
738 BUS_SPACE_MAXADDR, /* highaddr */
739 NULL, NULL, /* filter, filterarg */
740 CISS_COMMAND_ALLOC_SIZE *
741 sc->ciss_max_requests, 1, /* maxsize, nsegments */
742 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
744 &sc->ciss_command_dmat)) {
745 ciss_printf(sc, "can't allocate command DMA tag\n");
749 * Allocate memory and make it available for DMA.
751 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
752 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
753 ciss_printf(sc, "can't allocate command memory\n");
756 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command,
757 sizeof(struct ciss_command) * sc->ciss_max_requests,
758 ciss_command_map_helper, sc, 0);
759 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
762 * Set up the request and command structures, push requests onto
765 for (i = 1; i < sc->ciss_max_requests; i++) {
766 cr = &sc->ciss_request[i];
769 ciss_enqueue_free(cr);
775 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
777 struct ciss_softc *sc = (struct ciss_softc *)arg;
779 sc->ciss_command_phys = segs->ds_addr;
782 /************************************************************************
783 * Identify the adapter, print some information about it.
786 ciss_identify_adapter(struct ciss_softc *sc)
788 struct ciss_request *cr;
789 int error, command_status;
796 * Get a request, allocate storage for the adapter data.
798 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
799 (void **)&sc->ciss_id,
800 sizeof(*sc->ciss_id))) != 0)
804 * Submit the request and wait for it to complete.
806 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
807 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
814 ciss_report_request(cr, &command_status, NULL);
815 switch(command_status) {
816 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
818 case CISS_CMD_STATUS_DATA_UNDERRUN:
819 case CISS_CMD_STATUS_DATA_OVERRUN:
820 ciss_printf(sc, "data over/underrun reading adapter information\n");
822 ciss_printf(sc, "error reading adapter information (%s)\n",
823 ciss_name_command_status(command_status));
828 /* sanity-check reply */
829 if (!sc->ciss_id->big_map_supported) {
830 ciss_printf(sc, "adapter does not support BIG_MAP\n");
836 /* XXX later revisions may not need this */
837 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
840 /* XXX only really required for old 5300 adapters? */
841 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
843 /* print information */
844 if (1/*bootverbose*/) {
845 ciss_printf(sc, " %d logical drive%s configured\n",
846 sc->ciss_id->configured_logical_drives,
847 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
848 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
849 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
851 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
852 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
853 ciss_printf(sc, " supported I/O methods 0x%b\n",
854 sc->ciss_cfg->supported_methods,
855 "\20\1READY\2simple\3performant\4MEMQ\n");
856 ciss_printf(sc, " active I/O method 0x%b\n",
857 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
858 ciss_printf(sc, " 4G page base 0x%08x\n",
859 sc->ciss_cfg->command_physlimit);
860 ciss_printf(sc, " interrupt coalesce delay %dus\n",
861 sc->ciss_cfg->interrupt_coalesce_delay);
862 ciss_printf(sc, " interrupt coalesce count %d\n",
863 sc->ciss_cfg->interrupt_coalesce_count);
864 ciss_printf(sc, " max outstanding commands %d\n",
865 sc->ciss_cfg->max_outstanding_commands);
866 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
867 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
868 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
869 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
874 if (sc->ciss_id != NULL) {
875 free(sc->ciss_id, CISS_MALLOC_CLASS);
880 ciss_release_request(cr);
884 /************************************************************************
885 * Find logical drives on the adapter.
888 ciss_init_logical(struct ciss_softc *sc)
890 struct ciss_request *cr;
891 struct ciss_command *cc;
892 struct ciss_report_cdb *crc;
893 struct ciss_lun_report *cll;
905 * Get a request, allocate storage for the address list.
907 if ((error = ciss_get_request(sc, &cr)) != 0)
909 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address);
910 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
911 ciss_printf(sc, "can't allocate memory for logical drive list\n");
917 * Build the Report Logical LUNs command.
919 cc = CISS_FIND_COMMAND(cr);
921 cr->cr_length = report_size;
922 cr->cr_flags = CISS_REQ_DATAIN;
924 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
925 cc->header.address.physical.bus = 0;
926 cc->header.address.physical.target = 0;
927 cc->cdb.cdb_length = sizeof(*crc);
928 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
929 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
930 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
931 cc->cdb.timeout = 30; /* XXX better suggestions? */
933 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
934 bzero(crc, sizeof(*crc));
935 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS;
936 crc->length = htonl(report_size); /* big-endian field */
937 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
940 * Submit the request and wait for it to complete. (timeout
941 * here should be much greater than above)
943 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
944 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error);
949 * Check response. Note that data over/underrun is OK.
951 ciss_report_request(cr, &command_status, NULL);
952 switch(command_status) {
953 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
954 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
956 case CISS_CMD_STATUS_DATA_OVERRUN:
957 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n",
961 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
962 ciss_name_command_status(command_status));
966 ciss_release_request(cr);
969 /* sanity-check reply */
970 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
971 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
972 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
973 ndrives, CISS_MAX_LOGICAL);
978 * Save logical drive information.
980 if (1/*bootverbose*/)
981 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : "");
982 if (ndrives != sc->ciss_id->configured_logical_drives)
983 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n",
984 ndrives, sc->ciss_id->configured_logical_drives);
985 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
987 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */
988 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0)
991 * If the drive has had media exchanged, we should bring it online.
993 if (sc->ciss_logical[i].cl_lstatus->media_exchanged)
994 ciss_accept_media(sc, i, 0);
997 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT;
1004 * Note that if the error is a timeout, we are taking a slight
1005 * risk here and assuming that the adapter will not respond at a
1006 * later time, scribbling over host memory.
1009 ciss_release_request(cr);
1011 free(cll, CISS_MALLOC_CLASS);
1016 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1018 struct ciss_request *cr;
1019 struct ciss_command *cc;
1020 struct scsi_inquiry *inq;
1026 lun = ld->cl_address.logical.lun;
1028 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1030 if ((error = ciss_get_request(sc, &cr)) != 0)
1033 cc = CISS_FIND_COMMAND(cr);
1034 cr->cr_data = &ld->cl_geometry;
1035 cr->cr_length = sizeof(ld->cl_geometry);
1036 cr->cr_flags = CISS_REQ_DATAIN;
1038 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
1039 cc->header.address.logical.lun = lun;
1040 cc->cdb.cdb_length = 6;
1041 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1042 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1043 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1044 cc->cdb.timeout = 30;
1046 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1047 inq->opcode = INQUIRY;
1048 inq->byte2 = SI_EVPD;
1049 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1050 inq->length = sizeof(ld->cl_geometry);
1052 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1053 ciss_printf(sc, "error getting geometry (%d)\n", error);
1057 ciss_report_request(cr, &command_status, NULL);
1058 switch(command_status) {
1059 case CISS_CMD_STATUS_SUCCESS:
1060 case CISS_CMD_STATUS_DATA_UNDERRUN:
1062 case CISS_CMD_STATUS_DATA_OVERRUN:
1063 ciss_printf(sc, "WARNING: Data overrun\n");
1066 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1067 ciss_name_command_status(command_status));
1073 ciss_release_request(cr);
1076 /************************************************************************
1077 * Identify a logical drive, initialise state related to it.
1080 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1082 struct ciss_request *cr;
1083 struct ciss_command *cc;
1084 struct ciss_bmic_cdb *cbc;
1085 int error, command_status;
1092 * Build a BMIC request to fetch the drive ID.
1094 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1095 (void **)&ld->cl_ldrive,
1096 sizeof(*ld->cl_ldrive))) != 0)
1098 cc = CISS_FIND_COMMAND(cr);
1099 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1100 cbc->log_drive = ld->cl_address.logical.lun;
1103 * Submit the request and wait for it to complete.
1105 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1106 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1113 ciss_report_request(cr, &command_status, NULL);
1114 switch(command_status) {
1115 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1117 case CISS_CMD_STATUS_DATA_UNDERRUN:
1118 case CISS_CMD_STATUS_DATA_OVERRUN:
1119 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1121 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1122 ciss_name_command_status(command_status));
1126 ciss_release_request(cr);
1130 * Build a CISS BMIC command to get the logical drive status.
1132 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1136 * Get the logical drive geometry.
1138 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1142 * Print the drive's basic characteristics.
1144 if (1/*bootverbose*/) {
1145 ciss_printf(sc, "logical drive %d: %s, %dMB ",
1146 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1147 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1148 ld->cl_ldrive->block_size));
1150 ciss_print_ldrive(sc, ld);
1154 /* make the drive not-exist */
1155 ld->cl_status = CISS_LD_NONEXISTENT;
1156 if (ld->cl_ldrive != NULL) {
1157 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1158 ld->cl_ldrive = NULL;
1160 if (ld->cl_lstatus != NULL) {
1161 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1162 ld->cl_lstatus = NULL;
1166 ciss_release_request(cr);
1171 /************************************************************************
1172 * Get status for a logical drive.
1174 * XXX should we also do this in response to Test Unit Ready?
1177 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1179 struct ciss_request *cr;
1180 struct ciss_command *cc;
1181 struct ciss_bmic_cdb *cbc;
1182 int error, command_status;
1185 * Build a CISS BMIC command to get the logical drive status.
1187 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1188 (void **)&ld->cl_lstatus,
1189 sizeof(*ld->cl_lstatus))) != 0)
1191 cc = CISS_FIND_COMMAND(cr);
1192 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1193 cbc->log_drive = ld->cl_address.logical.lun;
1196 * Submit the request and wait for it to complete.
1198 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1199 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1206 ciss_report_request(cr, &command_status, NULL);
1207 switch(command_status) {
1208 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1210 case CISS_CMD_STATUS_DATA_UNDERRUN:
1211 case CISS_CMD_STATUS_DATA_OVERRUN:
1212 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1214 ciss_printf(sc, "error reading logical drive status (%s)\n",
1215 ciss_name_command_status(command_status));
1221 * Set the drive's summary status based on the returned status.
1223 * XXX testing shows that a failed JBOD drive comes back at next
1224 * boot in "queued for expansion" mode. WTF?
1226 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1230 ciss_release_request(cr);
1234 /************************************************************************
1235 * Notify the adapter of a config update.
1238 ciss_update_config(struct ciss_softc *sc)
1244 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1245 for (i = 0; i < 1000; i++) {
1246 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1247 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1255 /************************************************************************
1256 * Accept new media into a logical drive.
1258 * XXX The drive has previously been offline; it would be good if we
1259 * could make sure it's not open right now.
1262 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async)
1264 struct ciss_request *cr;
1265 struct ciss_command *cc;
1266 struct ciss_bmic_cdb *cbc;
1269 debug(0, "bringing logical drive %d back online %ssynchronously",
1270 ldrive, async ? "a" : "");
1273 * Build a CISS BMIC command to bring the drive back online.
1275 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1278 cc = CISS_FIND_COMMAND(cr);
1279 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1280 cbc->log_drive = ldrive;
1283 * Dispatch the request asynchronously if we can't sleep waiting
1284 * for it to complete.
1287 cr->cr_complete = ciss_accept_media_complete;
1288 if ((error = ciss_start(cr)) != 0)
1293 * Submit the request and wait for it to complete.
1295 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1296 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1302 * Call the completion callback manually.
1304 ciss_accept_media_complete(cr);
1309 ciss_release_request(cr);
1314 ciss_accept_media_complete(struct ciss_request *cr)
1321 ciss_report_request(cr, &command_status, NULL);
1322 switch(command_status) {
1323 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1324 /* we should get a logical drive status changed event here */
1327 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1328 ciss_name_command_status(command_status));
1331 ciss_release_request(cr);
1334 /************************************************************************
1335 * Release adapter resources.
1338 ciss_free(struct ciss_softc *sc)
1342 /* we're going away */
1343 sc->ciss_flags |= CISS_FLAG_ABORTING;
1345 /* terminate the periodic heartbeat routine */
1346 untimeout(ciss_periodic, sc, sc->ciss_periodic);
1348 /* cancel the Event Notify chain */
1349 ciss_notify_abort(sc);
1351 /* free the controller data */
1352 if (sc->ciss_id != NULL)
1353 free(sc->ciss_id, CISS_MALLOC_CLASS);
1355 /* release I/O resources */
1356 if (sc->ciss_regs_resource != NULL)
1357 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1358 sc->ciss_regs_rid, sc->ciss_regs_resource);
1359 if (sc->ciss_cfg_resource != NULL)
1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1361 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1362 if (sc->ciss_intr != NULL)
1363 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1364 if (sc->ciss_irq_resource != NULL)
1365 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1366 sc->ciss_irq_rid, sc->ciss_irq_resource);
1368 /* destroy DMA tags */
1369 if (sc->ciss_parent_dmat)
1370 bus_dma_tag_destroy(sc->ciss_parent_dmat);
1371 if (sc->ciss_buffer_dmat)
1372 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1374 /* destroy command memory and DMA tag */
1375 if (sc->ciss_command != NULL) {
1376 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1377 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1379 if (sc->ciss_buffer_dmat)
1380 bus_dma_tag_destroy(sc->ciss_command_dmat);
1382 /* disconnect from CAM */
1383 if (sc->ciss_cam_sim) {
1384 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim));
1385 cam_sim_free(sc->ciss_cam_sim, 0);
1387 if (sc->ciss_cam_devq)
1388 cam_simq_free(sc->ciss_cam_devq);
1389 /* XXX what about ciss_cam_path? */
1392 /************************************************************************
1393 * Give a command to the adapter.
1395 * Note that this uses the simple transport layer directly. If we
1396 * want to add support for other layers, we'll need a switch of some
1399 * Note that the simple transport layer has no way of refusing a
1400 * command; we only have as many request structures as the adapter
1401 * supports commands, so we don't have to check (this presumes that
1402 * the adapter can handle commands as fast as we throw them at it).
1405 ciss_start(struct ciss_request *cr)
1407 struct ciss_command *cc; /* XXX debugging only */
1410 cc = CISS_FIND_COMMAND(cr);
1411 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
1414 * Map the request's data.
1416 if ((error = ciss_map_request(cr)))
1420 ciss_print_request(cr);
1424 * Post the command to the adapter.
1426 ciss_enqueue_busy(cr);
1427 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr));
1432 /************************************************************************
1433 * Fetch completed request(s) from the adapter, queue them for
1434 * completion handling.
1436 * Note that this uses the simple transport layer directly. If we
1437 * want to add support for other layers, we'll need a switch of some
1440 * Note that the simple transport mechanism does not require any
1441 * reentrancy protection; the OPQ read is atomic. If there is a
1442 * chance of a race with something else that might move the request
1443 * off the busy list, then we will have to lock against that
1444 * (eg. timeouts, etc.)
1447 ciss_done(struct ciss_softc *sc)
1449 struct ciss_request *cr;
1450 struct ciss_command *cc;
1451 u_int32_t tag, index;
1457 * Loop quickly taking requests from the adapter and moving them
1458 * from the busy queue to the completed queue.
1463 /* see if the OPQ contains anything */
1464 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc))
1467 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
1468 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
1471 debug(2, "completed command %d%s", index,
1472 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
1473 if (index >= sc->ciss_max_requests) {
1474 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
1477 cr = &(sc->ciss_request[index]);
1478 cc = CISS_FIND_COMMAND(cr);
1479 cc->header.host_tag = tag; /* not updated by adapter */
1480 if (ciss_remove_busy(cr)) {
1481 /* assume this is garbage out of the adapter */
1482 ciss_printf(sc, "completed nonbusy request %d\n", index);
1484 ciss_enqueue_complete(cr);
1490 * Invoke completion processing. If we can defer this out of
1491 * interrupt context, that'd be good.
1497 /************************************************************************
1498 * Take an interrupt from the adapter.
1501 ciss_intr(void *arg)
1503 struct ciss_softc *sc = (struct ciss_softc *)arg;
1506 * The only interrupt we recognise indicates that there are
1507 * entries in the outbound post queue.
1512 /************************************************************************
1513 * Process completed requests.
1515 * Requests can be completed in three fashions:
1517 * - by invoking a callback function (cr_complete is non-null)
1518 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
1519 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
1522 ciss_complete(struct ciss_softc *sc)
1524 struct ciss_request *cr;
1529 * Loop taking requests off the completed queue and performing
1530 * completion processing on them.
1533 if ((cr = ciss_dequeue_complete(sc)) == NULL)
1535 ciss_unmap_request(cr);
1538 * If the request has a callback, invoke it.
1540 if (cr->cr_complete != NULL) {
1541 cr->cr_complete(cr);
1546 * If someone is sleeping on this request, wake them up.
1548 if (cr->cr_flags & CISS_REQ_SLEEP) {
1549 cr->cr_flags &= ~CISS_REQ_SLEEP;
1555 * If someone is polling this request for completion, signal.
1557 if (cr->cr_flags & CISS_REQ_POLL) {
1558 cr->cr_flags &= ~CISS_REQ_POLL;
1563 * Give up and throw the request back on the free queue. This
1564 * should never happen; resources will probably be lost.
1566 ciss_printf(sc, "WARNING: completed command with no submitter\n");
1567 ciss_enqueue_free(cr);
1571 /************************************************************************
1572 * Report on the completion status of a request, and pass back SCSI
1573 * and command status values.
1576 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status)
1578 struct ciss_command *cc;
1579 struct ciss_error_info *ce;
1583 cc = CISS_FIND_COMMAND(cr);
1584 ce = (struct ciss_error_info *)&(cc->sg[0]);
1587 * We don't consider data under/overrun an error for the Report
1588 * Logical/Physical LUNs commands.
1590 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
1591 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
1592 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) {
1593 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
1594 debug(2, "ignoring irrelevant under/overrun error");
1598 * Check the command's error bit, if clear, there's no status and
1601 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
1602 if (scsi_status != NULL)
1603 *scsi_status = SCSI_STATUS_OK;
1604 if (command_status != NULL)
1605 *command_status = CISS_CMD_STATUS_SUCCESS;
1608 if (command_status != NULL)
1609 *command_status = ce->command_status;
1610 if (scsi_status != NULL) {
1611 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
1612 *scsi_status = ce->scsi_status;
1618 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
1619 ce->command_status, ciss_name_command_status(ce->command_status),
1621 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
1622 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n",
1623 ce->additional_error_info.invalid_command.offense_size,
1624 ce->additional_error_info.invalid_command.offense_offset,
1625 ce->additional_error_info.invalid_command.offense_value);
1631 /************************************************************************
1632 * Issue a request and don't return until it's completed.
1634 * Depending on adapter status, we may poll or sleep waiting for
1638 ciss_synch_request(struct ciss_request *cr, int timeout)
1640 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
1641 return(ciss_wait_request(cr, timeout));
1643 return(ciss_poll_request(cr, timeout));
1647 /************************************************************************
1648 * Issue a request and poll for completion.
1650 * Timeout in milliseconds.
1653 ciss_poll_request(struct ciss_request *cr, int timeout)
1659 cr->cr_flags |= CISS_REQ_POLL;
1660 if ((error = ciss_start(cr)) != 0)
1664 ciss_done(cr->cr_sc);
1665 if (!(cr->cr_flags & CISS_REQ_POLL))
1668 } while (timeout-- >= 0);
1669 return(EWOULDBLOCK);
1672 /************************************************************************
1673 * Issue a request and sleep waiting for completion.
1675 * Timeout in milliseconds. Note that a spurious wakeup will reset
1679 ciss_wait_request(struct ciss_request *cr, int timeout)
1685 cr->cr_flags |= CISS_REQ_SLEEP;
1686 if ((error = ciss_start(cr)) != 0)
1690 while (cr->cr_flags & CISS_REQ_SLEEP) {
1691 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000);
1693 * On wakeup or interruption due to restartable activity, go
1694 * back and check to see if we're done.
1696 if ((error == 0) || (error == ERESTART)) {
1701 * Timeout, interrupted system call, etc.
1710 /************************************************************************
1711 * Abort a request. Note that a potential exists here to race the
1712 * request being completed; the caller must deal with this.
1715 ciss_abort_request(struct ciss_request *ar)
1717 struct ciss_request *cr;
1718 struct ciss_command *cc;
1719 struct ciss_message_cdb *cmc;
1725 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
1728 /* build the abort command */
1729 cc = CISS_FIND_COMMAND(cr);
1730 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
1731 cc->header.address.physical.target = 0;
1732 cc->header.address.physical.bus = 0;
1733 cc->cdb.cdb_length = sizeof(*cmc);
1734 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
1735 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1736 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
1737 cc->cdb.timeout = 30;
1739 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
1740 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
1741 cmc->type = CISS_MESSAGE_ABORT_TASK;
1742 cmc->abort_tag = ar->cr_tag; /* endianness?? */
1745 * Send the request and wait for a response. If we believe we
1746 * aborted the request OK, clear the flag that indicates it's
1749 error = ciss_synch_request(cr, 35 * 1000);
1751 error = ciss_report_request(cr, NULL, NULL);
1752 ciss_release_request(cr);
1759 /************************************************************************
1760 * Fetch and initialise a request
1763 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
1765 struct ciss_request *cr;
1770 * Get a request and clean it up.
1772 if ((cr = ciss_dequeue_free(sc)) == NULL)
1777 cr->cr_complete = NULL;
1779 ciss_preen_command(cr);
1785 ciss_preen_command(struct ciss_request *cr)
1787 struct ciss_command *cc;
1791 * Clean up the command structure.
1793 * Note that we set up the error_info structure here, since the
1794 * length can be overwritten by any command.
1796 cc = CISS_FIND_COMMAND(cr);
1797 cc->header.sg_in_list = 0; /* kinda inefficient this way */
1798 cc->header.sg_total = 0;
1799 cc->header.host_tag = cr->cr_tag << 2;
1800 cc->header.host_tag_zeroes = 0;
1801 cmdphys = CISS_FIND_COMMANDPHYS(cr);
1802 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
1803 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
1807 /************************************************************************
1808 * Release a request to the free list.
1811 ciss_release_request(struct ciss_request *cr)
1813 struct ciss_softc *sc;
1819 /* release the request to the free queue */
1820 ciss_requeue_free(cr);
1823 /************************************************************************
1824 * Allocate a request that will be used to send a BMIC command. Do some
1825 * of the common setup here to avoid duplicating it everywhere else.
1828 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
1829 int opcode, void **bufp, size_t bufsize)
1831 struct ciss_request *cr;
1832 struct ciss_command *cc;
1833 struct ciss_bmic_cdb *cbc;
1846 if ((error = ciss_get_request(sc, &cr)) != 0)
1850 * Allocate data storage if requested, determine the data direction.
1853 if ((bufsize > 0) && (bufp != NULL)) {
1854 if (*bufp == NULL) {
1855 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1861 dataout = 1; /* we are given a buffer, so we are writing */
1866 * Build a CISS BMIC command to get the logical drive ID.
1869 cr->cr_length = bufsize;
1871 cr->cr_flags = CISS_REQ_DATAIN;
1873 cc = CISS_FIND_COMMAND(cr);
1874 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1875 cc->header.address.physical.bus = 0;
1876 cc->header.address.physical.target = 0;
1877 cc->cdb.cdb_length = sizeof(*cbc);
1878 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1879 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1880 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
1881 cc->cdb.timeout = 0;
1883 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1884 bzero(cbc, sizeof(*cbc));
1885 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
1886 cbc->bmic_opcode = opcode;
1887 cbc->size = htons((u_int16_t)bufsize);
1892 ciss_release_request(cr);
1893 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1894 free(buf, CISS_MALLOC_CLASS);
1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
1903 /************************************************************************
1904 * Handle a command passed in from userspace.
1907 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
1909 struct ciss_request *cr;
1910 struct ciss_command *cc;
1911 struct ciss_error_info *ce;
1921 if ((error = ciss_get_request(sc, &cr)) != 0)
1923 cc = CISS_FIND_COMMAND(cr);
1926 * Allocate an in-kernel databuffer if required, copy in user data.
1928 cr->cr_length = ioc->buf_size;
1929 if (ioc->buf_size > 0) {
1930 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) {
1934 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
1935 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1941 * Build the request based on the user command.
1943 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
1944 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
1946 /* XXX anything else to populate here? */
1951 if ((error = ciss_synch_request(cr, 60 * 1000))) {
1952 debug(0, "request failed - %d", error);
1957 * Copy the results back to the user.
1959 ce = (struct ciss_error_info *)&(cc->sg[0]);
1960 bcopy(ce, &ioc->error_info, sizeof(*ce));
1961 if ((ioc->buf_size > 0) &&
1962 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
1963 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
1971 if ((cr != NULL) && (cr->cr_data != NULL))
1972 free(cr->cr_data, CISS_MALLOC_CLASS);
1974 ciss_release_request(cr);
1978 /************************************************************************
1979 * Map a request into bus-visible space, initialise the scatter/gather
1983 ciss_map_request(struct ciss_request *cr)
1985 struct ciss_softc *sc;
1991 /* check that mapping is necessary */
1992 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
1995 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length,
1996 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0);
1998 if (cr->cr_flags & CISS_REQ_DATAIN)
1999 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2000 if (cr->cr_flags & CISS_REQ_DATAOUT)
2001 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2003 cr->cr_flags |= CISS_REQ_MAPPED;
2008 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2010 struct ciss_command *cc;
2015 cc = (struct ciss_command *)arg;
2016 for (i = 0; i < nseg; i++) {
2017 cc->sg[i].address = segs[i].ds_addr;
2018 cc->sg[i].length = segs[i].ds_len;
2019 cc->sg[i].extension = 0;
2021 /* we leave the s/g table entirely within the command */
2022 cc->header.sg_in_list = nseg;
2023 cc->header.sg_total = nseg;
2026 /************************************************************************
2027 * Unmap a request from bus-visible space.
2030 ciss_unmap_request(struct ciss_request *cr)
2032 struct ciss_softc *sc;
2038 /* check that unmapping is necessary */
2039 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
2042 if (cr->cr_flags & CISS_REQ_DATAIN)
2043 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2044 if (cr->cr_flags & CISS_REQ_DATAOUT)
2045 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2047 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2048 cr->cr_flags &= ~CISS_REQ_MAPPED;
2051 /************************************************************************
2052 * Attach the driver to CAM.
2054 * We put all the logical drives on a single SCSI bus.
2057 ciss_cam_init(struct ciss_softc *sc)
2063 * Allocate a devq. We can reuse this for the masked physical
2064 * devices if we decide to export these as well.
2066 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) {
2067 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2074 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc,
2075 device_get_unit(sc->ciss_dev),
2076 sc->ciss_max_requests - 2,
2078 sc->ciss_cam_devq)) == NULL) {
2079 ciss_printf(sc, "can't allocate CAM SIM\n");
2084 * Register bus 0 (the 'logical drives' bus) with this SIM.
2086 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) {
2087 ciss_printf(sc, "can't register SCSI bus 0\n");
2092 * Initiate a rescan of the bus.
2094 ciss_cam_rescan_all(sc);
2099 /************************************************************************
2100 * Initiate a rescan of the 'logical devices' SIM
2103 ciss_cam_rescan_target(struct ciss_softc *sc, int target)
2109 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) {
2110 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2114 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0)
2116 ciss_printf(sc, "rescan failed (can't create path)\n");
2120 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/);
2121 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2122 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
2123 ccb->crcn.flags = CAM_FLAG_NONE;
2126 /* scan is now in progress */
2130 ciss_cam_rescan_all(struct ciss_softc *sc)
2132 return(ciss_cam_rescan_target(sc, 0));
2136 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2138 xpt_free_path(ccb->ccb_h.path);
2142 /************************************************************************
2143 * Handle requests coming from CAM
2146 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2148 struct ciss_softc *sc;
2149 struct ccb_scsiio *csio;
2152 sc = cam_sim_softc(sim);
2153 csio = (struct ccb_scsiio *)&ccb->csio;
2154 target = csio->ccb_h.target_id;
2156 switch (ccb->ccb_h.func_code) {
2158 /* perform SCSI I/O */
2160 if (!ciss_cam_action_io(sim, csio))
2164 /* perform geometry calculations */
2165 case XPT_CALC_GEOMETRY:
2167 struct ccb_calc_geometry *ccg = &ccb->ccg;
2168 struct ciss_ldrive *ld = &sc->ciss_logical[target];
2170 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2173 * Use the cached geometry settings unless the fault tolerance
2176 if (ld->cl_geometry.fault_tolerance == 0xFF) {
2177 u_int32_t secs_per_cylinder;
2180 ccg->secs_per_track = 32;
2181 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2182 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2184 ccg->heads = ld->cl_geometry.heads;
2185 ccg->secs_per_track = ld->cl_geometry.sectors;
2186 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2188 ccb->ccb_h.status = CAM_REQ_CMP;
2192 /* handle path attribute inquiry */
2195 struct ccb_pathinq *cpi = &ccb->cpi;
2197 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2199 cpi->version_num = 1;
2200 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2201 cpi->target_sprt = 0;
2203 cpi->max_target = CISS_MAX_LOGICAL;
2204 cpi->max_lun = 0; /* 'logical drive' channel only */
2205 cpi->initiator_id = CISS_MAX_LOGICAL;
2206 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2207 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
2208 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2209 cpi->unit_number = cam_sim_unit(sim);
2210 cpi->bus_id = cam_sim_bus(sim);
2211 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
2212 ccb->ccb_h.status = CAM_REQ_CMP;
2216 case XPT_GET_TRAN_SETTINGS:
2218 struct ccb_trans_settings *cts = &ccb->cts;
2221 bus = cam_sim_bus(sim);
2222 target = cts->ccb_h.target_id;
2224 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
2227 /* disconnect always OK */
2228 cts->flags |= CCB_TRANS_DISC_ENB;
2229 cts->valid |= CCB_TRANS_DISC_VALID;
2231 cts->ccb_h.status = CAM_REQ_CMP;
2235 default: /* we can't do this */
2236 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
2237 ccb->ccb_h.status = CAM_REQ_INVALID;
2244 /************************************************************************
2245 * Handle a CAM SCSI I/O request.
2248 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
2250 struct ciss_softc *sc;
2252 struct ciss_request *cr;
2253 struct ciss_command *cc;
2256 sc = cam_sim_softc(sim);
2257 bus = cam_sim_bus(sim);
2258 target = csio->ccb_h.target_id;
2260 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
2262 /* check for I/O attempt to nonexistent device */
2264 (target > CISS_MAX_LOGICAL) ||
2265 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) {
2266 debug(3, " device does not exist");
2267 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2270 /* firmware does not support commands > 10 bytes */
2271 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) {
2272 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE);
2273 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2276 /* check that the CDB pointer is not to a physical address */
2277 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
2278 debug(3, " CDB pointer is to physical address");
2279 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2282 /* if there is data transfer, it must be to/from a virtual address */
2283 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2284 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
2285 debug(3, " data pointer is to physical address");
2286 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2288 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
2289 debug(3, " data has premature s/g setup");
2290 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2294 /* abandon aborted ccbs or those that have failed validation */
2295 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2296 debug(3, "abandoning CCB due to abort/validation failure");
2300 /* handle emulation of some SCSI commands ourself */
2301 if (ciss_cam_emulate(sc, csio))
2305 * Get a request to manage this command. If we can't, return the
2306 * ccb, freeze the queue and flag so that we unfreeze it when a
2307 * request completes.
2309 if ((error = ciss_get_request(sc, &cr)) != 0) {
2310 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2311 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2316 * Build the command.
2318 cc = CISS_FIND_COMMAND(cr);
2319 cr->cr_data = csio->data_ptr;
2320 cr->cr_length = csio->dxfer_len;
2321 cr->cr_complete = ciss_cam_complete;
2322 cr->cr_private = csio;
2324 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
2325 cc->header.address.logical.lun = target;
2326 cc->cdb.cdb_length = csio->cdb_len;
2327 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2328 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
2329 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2330 cr->cr_flags = CISS_REQ_DATAOUT;
2331 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
2332 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2333 cr->cr_flags = CISS_REQ_DATAIN;
2334 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2337 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2339 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
2340 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
2341 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
2343 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
2347 * Submit the request to the adapter.
2349 * Note that this may fail if we're unable to map the request (and
2350 * if we ever learn a transport layer other than simple, may fail
2351 * if the adapter rejects the command).
2353 if ((error = ciss_start(cr)) != 0) {
2354 xpt_freeze_simq(sc->ciss_cam_sim, 1);
2355 csio->ccb_h.status |= CAM_REQUEUE_REQ;
2356 ciss_release_request(cr);
2363 /************************************************************************
2364 * Emulate SCSI commands the adapter doesn't handle as we might like.
2367 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
2373 target = csio->ccb_h.target_id;
2374 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
2375 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
2378 * Handle requests for volumes that don't exist. A selection timeout
2379 * is slightly better than an illegal request. Other errors might be
2382 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) {
2383 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2384 xpt_done((union ccb *)csio);
2389 * Handle requests for volumes that exist but are offline.
2391 * I/O operations should fail, everything else should work.
2393 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) {
2401 csio->ccb_h.status = CAM_SEL_TIMEOUT;
2402 xpt_done((union ccb *)csio);
2408 /* if we have to fake Synchronise Cache */
2409 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
2412 * If this is a Synchronise Cache command, typically issued when
2413 * a device is closed, flush the adapter and complete now.
2415 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2416 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
2417 ciss_flush_adapter(sc);
2418 csio->ccb_h.status = CAM_REQ_CMP;
2419 xpt_done((union ccb *)csio);
2427 /************************************************************************
2428 * Check for possibly-completed commands.
2431 ciss_cam_poll(struct cam_sim *sim)
2433 struct ciss_softc *sc = cam_sim_softc(sim);
2440 /************************************************************************
2441 * Handle completion of a command - pass results back through the CCB
2444 ciss_cam_complete(struct ciss_request *cr)
2446 struct ciss_softc *sc;
2447 struct ciss_command *cc;
2448 struct ciss_error_info *ce;
2449 struct ccb_scsiio *csio;
2456 cc = CISS_FIND_COMMAND(cr);
2457 ce = (struct ciss_error_info *)&(cc->sg[0]);
2458 csio = (struct ccb_scsiio *)cr->cr_private;
2461 * Extract status values from request.
2463 ciss_report_request(cr, &command_status, &scsi_status);
2464 csio->scsi_status = scsi_status;
2467 * Handle specific SCSI status values.
2469 switch(scsi_status) {
2470 /* no status due to adapter error */
2472 debug(0, "adapter error");
2473 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2476 /* no status due to command completed OK */
2477 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
2478 debug(2, "SCSI_STATUS_OK");
2479 csio->ccb_h.status = CAM_REQ_CMP;
2482 /* check condition, sense data included */
2483 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
2484 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d",
2485 ce->sense_length, ce->residual_count);
2486 bzero(&csio->sense_data, SSD_FULL_SIZE);
2487 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
2488 csio->sense_len = ce->sense_length;
2489 csio->resid = ce->residual_count;
2490 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
2493 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
2494 debug(0, "sense key %x", sns->flags & SSD_KEY);
2499 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
2500 debug(0, "SCSI_STATUS_BUSY");
2501 csio->ccb_h.status = CAM_SCSI_BUSY;
2505 debug(0, "unknown status 0x%x", csio->scsi_status);
2506 csio->ccb_h.status = CAM_REQ_CMP_ERR;
2510 /* handle post-command fixup */
2511 ciss_cam_complete_fixup(sc, csio);
2513 /* tell CAM we're ready for more commands */
2514 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
2516 xpt_done((union ccb *)csio);
2517 ciss_release_request(cr);
2520 /********************************************************************************
2521 * Fix up the result of some commands here.
2524 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
2526 struct scsi_inquiry_data *inq;
2527 struct ciss_ldrive *cl;
2530 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
2531 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) {
2533 inq = (struct scsi_inquiry_data *)csio->data_ptr;
2534 target = csio->ccb_h.target_id;
2535 cl = &sc->ciss_logical[target];
2537 padstr(inq->vendor, "COMPAQ", 8);
2538 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
2539 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
2544 /********************************************************************************
2545 * Find a peripheral attached at (target)
2547 static struct cam_periph *
2548 ciss_find_periph(struct ciss_softc *sc, int target)
2550 struct cam_periph *periph;
2551 struct cam_path *path;
2554 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0);
2555 if (status == CAM_REQ_CMP) {
2556 periph = cam_periph_find(path, NULL);
2557 xpt_free_path(path);
2564 /********************************************************************************
2565 * Name the device at (target)
2567 * XXX is this strictly correct?
2570 ciss_name_device(struct ciss_softc *sc, int target)
2572 struct cam_periph *periph;
2574 if ((periph = ciss_find_periph(sc, target)) != NULL) {
2575 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number);
2578 sc->ciss_logical[target].cl_name[0] = 0;
2582 /************************************************************************
2583 * Periodic status monitoring.
2586 ciss_periodic(void *arg)
2588 struct ciss_softc *sc;
2592 sc = (struct ciss_softc *)arg;
2595 * Check the adapter heartbeat.
2597 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
2598 sc->ciss_heart_attack++;
2599 debug(0, "adapter heart attack in progress 0x%x/%d",
2600 sc->ciss_heartbeat, sc->ciss_heart_attack);
2601 if (sc->ciss_heart_attack == 3) {
2602 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
2603 /* XXX should reset adapter here */
2606 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
2607 sc->ciss_heart_attack = 0;
2608 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
2612 * If the notify event request has died for some reason, or has
2613 * not started yet, restart it.
2615 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
2616 debug(0, "(re)starting Event Notify chain");
2617 ciss_notify_event(sc);
2623 if (!(sc->ciss_flags & CISS_FLAG_ABORTING))
2624 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz);
2627 /************************************************************************
2628 * Request a notification response from the adapter.
2630 * If (cr) is NULL, this is the first request of the adapter, so
2631 * reset the adapter's message pointer and start with the oldest
2632 * message available.
2635 ciss_notify_event(struct ciss_softc *sc)
2637 struct ciss_request *cr;
2638 struct ciss_command *cc;
2639 struct ciss_notify_cdb *cnc;
2644 cr = sc->ciss_periodic_notify;
2646 /* get a request if we don't already have one */
2648 if ((error = ciss_get_request(sc, &cr)) != 0) {
2649 debug(0, "can't get notify event request");
2652 sc->ciss_periodic_notify = cr;
2653 cr->cr_complete = ciss_notify_complete;
2654 debug(1, "acquired request %d", cr->cr_tag);
2658 * Get a databuffer if we don't already have one, note that the
2659 * adapter command wants a larger buffer than the actual
2662 if (cr->cr_data == NULL) {
2663 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2664 debug(0, "can't get notify event request buffer");
2668 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2671 /* re-setup the request's command (since we never release it) XXX overkill*/
2672 ciss_preen_command(cr);
2674 /* (re)build the notify event command */
2675 cc = CISS_FIND_COMMAND(cr);
2676 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2677 cc->header.address.physical.bus = 0;
2678 cc->header.address.physical.target = 0;
2680 cc->cdb.cdb_length = sizeof(*cnc);
2681 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2682 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2683 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2684 cc->cdb.timeout = 0; /* no timeout, we hope */
2686 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2687 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
2688 cnc->opcode = CISS_OPCODE_READ;
2689 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
2690 cnc->timeout = 0; /* no timeout, we hope */
2691 cnc->synchronous = 0;
2693 cnc->seek_to_oldest = 0;
2695 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2697 /* submit the request */
2698 error = ciss_start(cr);
2703 if (cr->cr_data != NULL)
2704 free(cr->cr_data, CISS_MALLOC_CLASS);
2705 ciss_release_request(cr);
2707 sc->ciss_periodic_notify = NULL;
2708 debug(0, "can't submit notify event request");
2709 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2711 debug(1, "notify event submitted");
2712 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
2717 ciss_notify_complete(struct ciss_request *cr)
2719 struct ciss_command *cc;
2720 struct ciss_notify *cn;
2721 struct ciss_softc *sc;
2727 cc = CISS_FIND_COMMAND(cr);
2728 cn = (struct ciss_notify *)cr->cr_data;
2732 * Report request results, decode status.
2734 ciss_report_request(cr, &command_status, &scsi_status);
2737 * Abort the chain on a fatal error.
2739 * XXX which of these are actually errors?
2741 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
2742 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
2743 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
2744 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
2745 ciss_name_command_status(command_status));
2746 ciss_release_request(cr);
2747 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2752 * If the adapter gave us a text message, print it.
2754 if (cn->message[0] != 0)
2755 ciss_printf(sc, "*** %.80s\n", cn->message);
2757 debug(0, "notify event class %d subclass %d detail %d",
2758 cn->class, cn->subclass, cn->detail);
2761 * If there's room, save the event for a user-level tool.
2763 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) {
2764 sc->ciss_notify[sc->ciss_notify_head] = *cn;
2765 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS;
2769 * Some events are directly of interest to us.
2771 switch (cn->class) {
2772 case CISS_NOTIFY_LOGICAL:
2773 ciss_notify_logical(sc, cn);
2775 case CISS_NOTIFY_PHYSICAL:
2776 ciss_notify_physical(sc, cn);
2781 * If the response indicates that the notifier has been aborted,
2782 * release the notifier command.
2784 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
2785 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
2786 (cn->detail == 1)) {
2787 debug(0, "notifier exiting");
2788 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2789 ciss_release_request(cr);
2790 sc->ciss_periodic_notify = NULL;
2791 wakeup(&sc->ciss_periodic_notify);
2795 * Send a new notify event command, if we're not aborting.
2797 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
2798 ciss_notify_event(sc);
2802 /************************************************************************
2803 * Abort the Notify Event chain.
2805 * Note that we can't just abort the command in progress; we have to
2806 * explicitly issue an Abort Notify Event command in order for the
2807 * adapter to clean up correctly.
2809 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
2810 * the chain will not restart itself.
2813 ciss_notify_abort(struct ciss_softc *sc)
2815 struct ciss_request *cr;
2816 struct ciss_command *cc;
2817 struct ciss_notify_cdb *cnc;
2818 int error, s, command_status, scsi_status;
2825 /* verify that there's an outstanding command */
2826 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2829 /* get a command to issue the abort with */
2830 if ((error = ciss_get_request(sc, &cr)))
2833 /* get a buffer for the result */
2834 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2835 debug(0, "can't get notify event request buffer");
2839 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
2842 cc = CISS_FIND_COMMAND(cr);
2843 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2844 cc->header.address.physical.bus = 0;
2845 cc->header.address.physical.target = 0;
2846 cc->cdb.cdb_length = sizeof(*cnc);
2847 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2848 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2849 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
2850 cc->cdb.timeout = 0; /* no timeout, we hope */
2852 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
2853 bzero(cnc, sizeof(*cnc));
2854 cnc->opcode = CISS_OPCODE_WRITE;
2855 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
2856 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
2858 ciss_print_request(cr);
2861 * Submit the request and wait for it to complete.
2863 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2864 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
2871 ciss_report_request(cr, &command_status, &scsi_status);
2872 switch(command_status) {
2873 case CISS_CMD_STATUS_SUCCESS:
2875 case CISS_CMD_STATUS_INVALID_COMMAND:
2877 * Some older adapters don't support the CISS version of this
2878 * command. Fall back to using the BMIC version.
2880 error = ciss_notify_abort_bmic(sc);
2885 case CISS_CMD_STATUS_TARGET_STATUS:
2887 * This can happen if the adapter thinks there wasn't an outstanding
2888 * Notify Event command but we did. We clean up here.
2890 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
2891 if (sc->ciss_periodic_notify != NULL)
2892 ciss_release_request(sc->ciss_periodic_notify);
2899 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
2900 ciss_name_command_status(command_status));
2906 * Sleep waiting for the notifier command to complete. Note
2907 * that if it doesn't, we may end up in a bad situation, since
2908 * the adapter may deliver it later. Also note that the adapter
2909 * requires the Notify Event command to be cancelled in order to
2910 * maintain internal bookkeeping.
2913 while (sc->ciss_periodic_notify != NULL) {
2914 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5);
2915 if (error == EWOULDBLOCK) {
2916 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
2923 /* release the cancel request */
2925 if (cr->cr_data != NULL)
2926 free(cr->cr_data, CISS_MALLOC_CLASS);
2927 ciss_release_request(cr);
2930 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
2934 /************************************************************************
2935 * Abort the Notify Event chain using a BMIC command.
2938 ciss_notify_abort_bmic(struct ciss_softc *sc)
2940 struct ciss_request *cr;
2941 int error, command_status;
2948 /* verify that there's an outstanding command */
2949 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
2953 * Build a BMIC command to cancel the Notify on Event command.
2955 * Note that we are sending a CISS opcode here. Odd.
2957 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
2962 * Submit the request and wait for it to complete.
2964 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
2965 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
2972 ciss_report_request(cr, &command_status, NULL);
2973 switch(command_status) {
2974 case CISS_CMD_STATUS_SUCCESS:
2977 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
2978 ciss_name_command_status(command_status));
2985 ciss_release_request(cr);
2989 /************************************************************************
2990 * Handle a notify event relating to the status of a logical drive.
2992 * XXX need to be able to defer some of these to properly handle
2993 * calling the "ID Physical drive" command, unless the 'extended'
2994 * drive IDs are always in BIG_MAP format.
2997 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
2999 struct ciss_ldrive *ld;
3004 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive];
3006 switch (cn->subclass) {
3007 case CISS_NOTIFY_LOGICAL_STATUS:
3008 switch (cn->detail) {
3010 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3011 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3012 cn->data.logical_status.logical_drive, ld->cl_name,
3013 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3014 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3015 cn->data.logical_status.spare_state,
3016 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3019 * Update our idea of the drive's status.
3021 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
3022 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3023 if (ld->cl_lstatus != NULL)
3024 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3028 * Have CAM rescan the drive if its status has changed.
3030 if (ostatus != ld->cl_status)
3031 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive);
3036 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3037 ciss_name_device(sc, cn->data.logical_status.logical_drive);
3038 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
3039 cn->data.logical_status.logical_drive, ld->cl_name);
3040 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1);
3045 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
3046 cn->data.rebuild_aborted.logical_drive,
3047 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name,
3048 (cn->detail == 2) ? "read" : "write");
3053 case CISS_NOTIFY_LOGICAL_ERROR:
3054 if (cn->detail == 0) {
3055 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3056 cn->data.io_error.logical_drive,
3057 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name,
3058 cn->data.io_error.failure_bus,
3059 cn->data.io_error.failure_drive);
3060 /* XXX should we take the drive down at this point, or will we be told? */
3064 case CISS_NOTIFY_LOGICAL_SURFACE:
3065 if (cn->detail == 0)
3066 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
3067 cn->data.consistency_completed.logical_drive,
3068 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name);
3073 /************************************************************************
3074 * Handle a notify event relating to the status of a physical drive.
3077 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
3082 /************************************************************************
3086 ciss_print_request(struct ciss_request *cr)
3088 struct ciss_softc *sc;
3089 struct ciss_command *cc;
3093 cc = CISS_FIND_COMMAND(cr);
3095 ciss_printf(sc, "REQUEST @ %p\n", cr);
3096 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
3097 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
3098 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
3099 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
3100 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
3101 switch(cc->header.address.mode.mode) {
3102 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
3103 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
3104 ciss_printf(sc, " physical bus %d target %d\n",
3105 cc->header.address.physical.bus, cc->header.address.physical.target);
3107 case CISS_HDR_ADDRESS_MODE_LOGICAL:
3108 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
3111 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
3112 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
3113 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
3114 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
3116 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
3117 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
3118 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
3119 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
3120 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
3121 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
3122 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
3123 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
3125 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
3126 /* XXX print error info */
3128 /* since we don't use chained s/g, don't support it here */
3129 for (i = 0; i < cc->header.sg_in_list; i++) {
3131 ciss_printf(sc, " ");
3132 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
3133 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
3139 /************************************************************************
3140 * Print information about the status of a logical drive.
3143 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
3147 if (ld->cl_lstatus == NULL) {
3148 printf("does not exist\n");
3152 /* print drive status */
3153 switch(ld->cl_lstatus->status) {
3154 case CISS_LSTATUS_OK:
3157 case CISS_LSTATUS_INTERIM_RECOVERY:
3158 printf("in interim recovery mode\n");
3160 case CISS_LSTATUS_READY_RECOVERY:
3161 printf("ready to begin recovery\n");
3163 case CISS_LSTATUS_RECOVERING:
3164 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3165 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
3166 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
3167 bus, target, ld->cl_lstatus->blocks_to_recover);
3169 case CISS_LSTATUS_EXPANDING:
3170 printf("being expanded, %u blocks remaining\n",
3171 ld->cl_lstatus->blocks_to_recover);
3173 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3174 printf("queued for expansion\n");
3176 case CISS_LSTATUS_FAILED:
3177 printf("queued for expansion\n");
3179 case CISS_LSTATUS_WRONG_PDRIVE:
3180 printf("wrong physical drive inserted\n");
3182 case CISS_LSTATUS_MISSING_PDRIVE:
3183 printf("missing a needed physical drive\n");
3185 case CISS_LSTATUS_BECOMING_READY:
3186 printf("becoming ready\n");
3190 /* print failed physical drives */
3191 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
3192 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
3193 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
3196 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
3197 ld->cl_lstatus->drive_failure_map[i]);
3202 /************************************************************************
3203 * Print information about the controller/driver.
3206 ciss_print_adapter(struct ciss_softc *sc)
3210 ciss_printf(sc, "ADAPTER:\n");
3211 for (i = 0; i < CISSQ_COUNT; i++) {
3212 ciss_printf(sc, "%s %d/%d\n",
3214 i == 1 ? "busy" : "complete",
3215 sc->ciss_qstat[i].q_length,
3216 sc->ciss_qstat[i].q_max);
3218 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
3219 ciss_printf(sc, "notify_head/tail %d/%d\n",
3220 sc->ciss_notify_head, sc->ciss_notify_tail);
3221 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
3222 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
3224 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
3225 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
3226 ciss_print_ldrive(sc, sc->ciss_logical + i);
3229 for (i = 1; i < sc->ciss_max_requests; i++)
3230 ciss_print_request(sc->ciss_request + i);
3238 struct ciss_softc *sc;
3240 sc = devclass_get_softc(devclass_find("ciss"), 0);
3242 printf("no ciss controllers\n");
3244 ciss_print_adapter(sc);
3249 /************************************************************************
3250 * Return a name for a logical drive status value.
3253 ciss_name_ldrive_status(int status)
3256 case CISS_LSTATUS_OK:
3258 case CISS_LSTATUS_FAILED:
3260 case CISS_LSTATUS_NOT_CONFIGURED:
3261 return("not configured");
3262 case CISS_LSTATUS_INTERIM_RECOVERY:
3263 return("interim recovery");
3264 case CISS_LSTATUS_READY_RECOVERY:
3265 return("ready for recovery");
3266 case CISS_LSTATUS_RECOVERING:
3267 return("recovering");
3268 case CISS_LSTATUS_WRONG_PDRIVE:
3269 return("wrong physical drive inserted");
3270 case CISS_LSTATUS_MISSING_PDRIVE:
3271 return("missing physical drive");
3272 case CISS_LSTATUS_EXPANDING:
3273 return("expanding");
3274 case CISS_LSTATUS_BECOMING_READY:
3275 return("becoming ready");
3276 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3277 return("queued for expansion");
3279 return("unknown status");
3282 /************************************************************************
3283 * Return an online/offline/nonexistent value for a logical drive
3287 ciss_decode_ldrive_status(int status)
3290 case CISS_LSTATUS_NOT_CONFIGURED:
3291 return(CISS_LD_NONEXISTENT);
3293 case CISS_LSTATUS_OK:
3294 case CISS_LSTATUS_INTERIM_RECOVERY:
3295 case CISS_LSTATUS_READY_RECOVERY:
3296 case CISS_LSTATUS_RECOVERING:
3297 case CISS_LSTATUS_EXPANDING:
3298 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
3299 return(CISS_LD_ONLINE);
3301 case CISS_LSTATUS_FAILED:
3302 case CISS_LSTATUS_WRONG_PDRIVE:
3303 case CISS_LSTATUS_MISSING_PDRIVE:
3304 case CISS_LSTATUS_BECOMING_READY:
3306 return(CISS_LD_OFFLINE);
3311 /************************************************************************
3312 * Return a name for a logical drive's organisation.
3315 ciss_name_ldrive_org(int org)
3318 case CISS_LDRIVE_RAID0:
3320 case CISS_LDRIVE_RAID1:
3322 case CISS_LDRIVE_RAID4:
3324 case CISS_LDRIVE_RAID5:
3330 /************************************************************************
3331 * Return a name for a command status value.
3334 ciss_name_command_status(int status)
3337 case CISS_CMD_STATUS_SUCCESS:
3339 case CISS_CMD_STATUS_TARGET_STATUS:
3340 return("target status");
3341 case CISS_CMD_STATUS_DATA_UNDERRUN:
3342 return("data underrun");
3343 case CISS_CMD_STATUS_DATA_OVERRUN:
3344 return("data overrun");
3345 case CISS_CMD_STATUS_INVALID_COMMAND:
3346 return("invalid command");
3347 case CISS_CMD_STATUS_PROTOCOL_ERROR:
3348 return("protocol error");
3349 case CISS_CMD_STATUS_HARDWARE_ERROR:
3350 return("hardware error");
3351 case CISS_CMD_STATUS_CONNECTION_LOST:
3352 return("connection lost");
3353 case CISS_CMD_STATUS_ABORTED:
3355 case CISS_CMD_STATUS_ABORT_FAILED:
3356 return("abort failed");
3357 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
3358 return("unsolicited abort");
3359 case CISS_CMD_STATUS_TIMEOUT:
3361 case CISS_CMD_STATUS_UNABORTABLE:
3362 return("unabortable");
3364 return("unknown status");
3367 /************************************************************************
3368 * Handle an open on the control device.
3371 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p)
3373 struct ciss_softc *sc;
3377 sc = (struct ciss_softc *)dev->si_drv1;
3379 /* we might want to veto if someone already has us open */
3381 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
3385 /************************************************************************
3386 * Handle the last close on the control device.
3389 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p)
3391 struct ciss_softc *sc;
3395 sc = (struct ciss_softc *)dev->si_drv1;
3397 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
3401 /********************************************************************************
3402 * Handle adapter-specific control operations.
3404 * Note that the API here is compatible with the Linux driver, in order to
3405 * simplify the porting of Compaq's userland tools.
3408 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p)
3410 struct ciss_softc *sc;
3415 sc = (struct ciss_softc *)dev->si_drv1;
3419 case CCISS_GETPCIINFO:
3421 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
3423 pis->bus = pci_get_bus(sc->ciss_dev);
3424 pis->dev_fn = pci_get_slot(sc->ciss_dev);
3425 pis->board_id = pci_get_devid(sc->ciss_dev);
3430 case CCISS_GETINTINFO:
3432 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3434 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
3435 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
3440 case CCISS_SETINTINFO:
3442 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
3444 if ((cis->delay == 0) && (cis->count == 0)) {
3450 * XXX apparently this is only safe if the controller is idle,
3451 * we should suspend it before doing this.
3453 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
3454 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
3456 if (ciss_update_config(sc))
3459 /* XXX resume the controller here */
3463 case CCISS_GETNODENAME:
3464 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
3465 sizeof(NodeName_type));
3468 case CCISS_SETNODENAME:
3469 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
3470 sizeof(NodeName_type));
3471 if (ciss_update_config(sc))
3475 case CCISS_GETHEARTBEAT:
3476 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
3479 case CCISS_GETBUSTYPES:
3480 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
3483 case CCISS_GETFIRMVER:
3484 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
3485 sizeof(FirmwareVer_type));
3488 case CCISS_GETDRIVERVER:
3489 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
3492 case CCISS_REVALIDVOLS:
3494 * This is a bit ugly; to do it "right" we really need
3495 * to find any disks that have changed, kick CAM off them,
3496 * then rescan only these disks. It'd be nice if they
3497 * a) told us which disk(s) they were going to play with,
3498 * and b) which ones had arrived. 8(
3502 case CCISS_PASSTHRU:
3503 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr);
3507 debug(0, "unknown ioctl 0x%lx", cmd);
3509 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
3510 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
3511 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
3512 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
3513 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
3514 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
3515 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
3516 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
3517 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
3518 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
3519 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);