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 1.24 2007/05/13 22:25:42 swildner 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/device.h>
75 #include <sys/malloc.h>
76 #include <sys/kernel.h>
79 #include <sys/devicestat.h>
83 #include <bus/cam/cam.h>
84 #include <bus/cam/cam_ccb.h>
85 #include <bus/cam/cam_periph.h>
86 #include <bus/cam/cam_sim.h>
87 #include <bus/cam/cam_xpt_sim.h>
88 #include <bus/cam/scsi/scsi_all.h>
89 #include <bus/cam/scsi/scsi_message.h>
91 #include <machine/clock.h>
92 #include <machine/endian.h>
94 #include <bus/pci/pcireg.h>
95 #include <bus/pci/pcivar.h>
101 MALLOC_DEFINE(CISS_MALLOC_CLASS
, "ciss_data", "ciss internal data buffers");
104 static int ciss_lookup(device_t dev
);
105 static int ciss_probe(device_t dev
);
106 static int ciss_attach(device_t dev
);
107 static int ciss_detach(device_t dev
);
108 static int ciss_shutdown(device_t dev
);
110 /* (de)initialisation functions, control wrappers */
111 static int ciss_init_pci(struct ciss_softc
*sc
);
112 static int ciss_wait_adapter(struct ciss_softc
*sc
);
113 static int ciss_flush_adapter(struct ciss_softc
*sc
);
114 static int ciss_init_requests(struct ciss_softc
*sc
);
115 static void ciss_command_map_helper(void *arg
, bus_dma_segment_t
*segs
,
116 int nseg
, int error
);
117 static int ciss_identify_adapter(struct ciss_softc
*sc
);
118 static int ciss_init_logical(struct ciss_softc
*sc
);
119 static int ciss_identify_logical(struct ciss_softc
*sc
, struct ciss_ldrive
*ld
);
120 static int ciss_get_ldrive_status(struct ciss_softc
*sc
, struct ciss_ldrive
*ld
);
121 static int ciss_update_config(struct ciss_softc
*sc
);
122 static int ciss_accept_media(struct ciss_softc
*sc
, int ldrive
, int async
);
123 static void ciss_accept_media_complete(struct ciss_request
*cr
);
124 static void ciss_free(struct ciss_softc
*sc
);
126 /* request submission/completion */
127 static int ciss_start(struct ciss_request
*cr
);
128 static void ciss_done(struct ciss_softc
*sc
);
129 static void ciss_intr(void *arg
);
130 static void ciss_complete(struct ciss_softc
*sc
);
131 static int ciss_report_request(struct ciss_request
*cr
, int *command_status
,
133 static int ciss_synch_request(struct ciss_request
*cr
, int timeout
);
134 static int ciss_poll_request(struct ciss_request
*cr
, int timeout
);
135 static int ciss_wait_request(struct ciss_request
*cr
, int timeout
);
137 static int ciss_abort_request(struct ciss_request
*cr
);
140 /* request queueing */
141 static int ciss_get_request(struct ciss_softc
*sc
, struct ciss_request
**crp
);
142 static void ciss_preen_command(struct ciss_request
*cr
);
143 static void ciss_release_request(struct ciss_request
*cr
);
145 /* request helpers */
146 static int ciss_get_bmic_request(struct ciss_softc
*sc
, struct ciss_request
**crp
,
147 int opcode
, void **bufp
, size_t bufsize
);
148 static int ciss_user_command(struct ciss_softc
*sc
, IOCTL_Command_struct
*ioc
);
151 static int ciss_map_request(struct ciss_request
*cr
);
152 static void ciss_request_map_helper(void *arg
, bus_dma_segment_t
*segs
,
153 int nseg
, int error
);
154 static void ciss_unmap_request(struct ciss_request
*cr
);
157 static int ciss_cam_init(struct ciss_softc
*sc
);
158 static void ciss_cam_rescan_target(struct ciss_softc
*sc
, int target
);
159 static void ciss_cam_rescan_all(struct ciss_softc
*sc
);
160 static void ciss_cam_rescan_callback(struct cam_periph
*periph
, union ccb
*ccb
);
161 static void ciss_cam_action(struct cam_sim
*sim
, union ccb
*ccb
);
162 static int ciss_cam_action_io(struct cam_sim
*sim
, struct ccb_scsiio
*csio
);
163 static int ciss_cam_emulate(struct ciss_softc
*sc
, struct ccb_scsiio
*csio
);
164 static void ciss_cam_poll(struct cam_sim
*sim
);
165 static void ciss_cam_complete(struct ciss_request
*cr
);
166 static void ciss_cam_complete_fixup(struct ciss_softc
*sc
, struct ccb_scsiio
*csio
);
167 static struct cam_periph
*ciss_find_periph(struct ciss_softc
*sc
, int target
);
168 static int ciss_name_device(struct ciss_softc
*sc
, int target
);
170 /* periodic status monitoring */
171 static void ciss_periodic(void *arg
);
172 static void ciss_notify_event(struct ciss_softc
*sc
);
173 static void ciss_notify_complete(struct ciss_request
*cr
);
174 static int ciss_notify_abort(struct ciss_softc
*sc
);
175 static int ciss_notify_abort_bmic(struct ciss_softc
*sc
);
176 static void ciss_notify_logical(struct ciss_softc
*sc
, struct ciss_notify
*cn
);
177 static void ciss_notify_physical(struct ciss_softc
*sc
, struct ciss_notify
*cn
);
179 /* debugging output */
180 static void ciss_print_request(struct ciss_request
*cr
);
181 static void ciss_print_ldrive(struct ciss_softc
*sc
, struct ciss_ldrive
*ld
);
182 static const char *ciss_name_ldrive_status(int status
);
183 static int ciss_decode_ldrive_status(int status
);
184 static const char *ciss_name_ldrive_org(int org
);
185 static const char *ciss_name_command_status(int status
);
190 static device_method_t ciss_methods
[] = {
191 /* Device interface */
192 DEVMETHOD(device_probe
, ciss_probe
),
193 DEVMETHOD(device_attach
, ciss_attach
),
194 DEVMETHOD(device_detach
, ciss_detach
),
195 DEVMETHOD(device_shutdown
, ciss_shutdown
),
199 static driver_t ciss_pci_driver
= {
202 sizeof(struct ciss_softc
)
205 static devclass_t ciss_devclass
;
207 DECLARE_DUMMY_MODULE(ciss
);
208 DRIVER_MODULE(ciss
, pci
, ciss_pci_driver
, ciss_devclass
, 0, 0);
211 * Control device interface.
213 static d_open_t ciss_open
;
214 static d_close_t ciss_close
;
215 static d_ioctl_t ciss_ioctl
;
217 #define CISS_CDEV_MAJOR 166
219 static struct dev_ops ciss_ops
= {
220 { "ciss", CISS_CDEV_MAJOR
, 0 },
222 .d_close
= ciss_close
,
223 .d_ioctl
= ciss_ioctl
226 /************************************************************************
227 * CISS adapters amazingly don't have a defined programming interface
228 * value. (One could say some very despairing things about PCI and
229 * people just not getting the general idea.) So we are forced to
230 * stick with matching against subvendor/subdevice, and thus have to
231 * be updated for every new CISS adapter that appears.
233 #define CISS_BOARD_SA5 (1<<0)
234 #define CISS_BOARD_SA5B (1<<1)
242 } ciss_vendor_data
[] = {
243 { 0x0e11, 0x4070, CISS_BOARD_SA5
, "Compaq Smart Array 5300" },
244 { 0x0e11, 0x4080, CISS_BOARD_SA5B
, "Compaq Smart Array 5i" },
245 { 0x0e11, 0x4082, CISS_BOARD_SA5B
, "Compaq Smart Array 532" },
246 { 0x0e11, 0x4083, CISS_BOARD_SA5B
, "HP Smart Array 5312" },
247 { 0x0e11, 0x409A, CISS_BOARD_SA5B
, "HP Smart Array 641" },
248 { 0x0e11, 0x409B, CISS_BOARD_SA5B
, "HP Smart Array 642" },
249 { 0x0e11, 0x409C, CISS_BOARD_SA5B
, "HP Smart Array 6400" },
253 /************************************************************************
254 * Find a match for the device in our list of known adapters.
257 ciss_lookup(device_t dev
)
261 for (i
= 0; ciss_vendor_data
[i
].desc
!= NULL
; i
++)
262 if ((pci_get_subvendor(dev
) == ciss_vendor_data
[i
].subvendor
) &&
263 (pci_get_subdevice(dev
) == ciss_vendor_data
[i
].subdevice
)) {
269 /************************************************************************
270 * Match a known CISS adapter.
273 ciss_probe(device_t dev
)
277 i
= ciss_lookup(dev
);
279 device_set_desc(dev
, ciss_vendor_data
[i
].desc
);
285 /************************************************************************
286 * Attach the driver to this adapter.
289 ciss_attach(device_t dev
)
291 struct ciss_softc
*sc
;
297 /* print structure/union sizes */
298 debug_struct(ciss_command
);
299 debug_struct(ciss_header
);
300 debug_union(ciss_device_address
);
301 debug_struct(ciss_cdb
);
302 debug_struct(ciss_report_cdb
);
303 debug_struct(ciss_notify_cdb
);
304 debug_struct(ciss_notify
);
305 debug_struct(ciss_message_cdb
);
306 debug_struct(ciss_error_info_pointer
);
307 debug_struct(ciss_error_info
);
308 debug_struct(ciss_sg_entry
);
309 debug_struct(ciss_config_table
);
310 debug_struct(ciss_bmic_cdb
);
311 debug_struct(ciss_bmic_id_ldrive
);
312 debug_struct(ciss_bmic_id_lstatus
);
313 debug_struct(ciss_bmic_id_table
);
314 debug_struct(ciss_bmic_id_pdrive
);
315 debug_struct(ciss_bmic_blink_pdrive
);
316 debug_struct(ciss_bmic_flush_cache
);
317 debug_const(CISS_MAX_REQUESTS
);
318 debug_const(CISS_MAX_LOGICAL
);
319 debug_const(CISS_INTERRUPT_COALESCE_DELAY
);
320 debug_const(CISS_INTERRUPT_COALESCE_COUNT
);
321 debug_const(CISS_COMMAND_ALLOC_SIZE
);
322 debug_const(CISS_COMMAND_SG_LENGTH
);
324 debug_type(cciss_pci_info_struct
);
325 debug_type(cciss_coalint_struct
);
326 debug_type(cciss_coalint_struct
);
327 debug_type(NodeName_type
);
328 debug_type(NodeName_type
);
329 debug_type(Heartbeat_type
);
330 debug_type(BusTypes_type
);
331 debug_type(FirmwareVer_type
);
332 debug_type(DriverVer_type
);
333 debug_type(IOCTL_Command_struct
);
336 sc
= device_get_softc(dev
);
338 callout_init(&sc
->ciss_periodic
);
341 * Work out adapter type.
343 i
= ciss_lookup(dev
);
344 if (ciss_vendor_data
[i
].flags
& CISS_BOARD_SA5
) {
345 sc
->ciss_interrupt_mask
= CISS_TL_SIMPLE_INTR_OPQ_SA5
;
346 } else if (ciss_vendor_data
[i
].flags
& CISS_BOARD_SA5B
) {
347 sc
->ciss_interrupt_mask
= CISS_TL_SIMPLE_INTR_OPQ_SA5B
;
349 /* really an error on our part */
350 ciss_printf(sc
, "unable to determine hardware type\n");
356 * Do PCI-specific init.
358 if ((error
= ciss_init_pci(sc
)) != 0)
362 * Initialise driver queues.
366 ciss_initq_complete(sc
);
369 * Initialise command/request pool.
371 if ((error
= ciss_init_requests(sc
)) != 0)
375 * Get adapter information.
377 if ((error
= ciss_identify_adapter(sc
)) != 0)
381 * Build our private table of logical devices.
383 if ((error
= ciss_init_logical(sc
)) != 0)
387 * Enable interrupts so that the CAM scan can complete.
389 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc
);
392 * Initialise the CAM interface.
394 if ((error
= ciss_cam_init(sc
)) != 0)
398 * Start the heartbeat routine and event chain.
403 * Create the control device.
405 dev_ops_add(&ciss_ops
, -1, device_get_unit(sc
->ciss_dev
));
406 sc
->ciss_dev_t
= make_dev(&ciss_ops
, device_get_unit(sc
->ciss_dev
),
407 UID_ROOT
, GID_OPERATOR
, S_IRUSR
| S_IWUSR
,
408 "ciss%d", device_get_unit(sc
->ciss_dev
));
409 sc
->ciss_dev_t
->si_drv1
= sc
;
412 * The adapter is running; synchronous commands can now sleep
413 * waiting for an interrupt to signal completion.
415 sc
->ciss_flags
|= CISS_FLAG_RUNNING
;
424 /************************************************************************
425 * Detach the driver from this adapter.
428 ciss_detach(device_t dev
)
430 struct ciss_softc
*sc
= device_get_softc(dev
);
434 /* flush adapter cache */
435 ciss_flush_adapter(sc
);
437 /* release all resources */
444 /************************************************************************
445 * Prepare adapter for system shutdown.
448 ciss_shutdown(device_t dev
)
450 struct ciss_softc
*sc
= device_get_softc(dev
);
454 /* flush adapter cache */
455 ciss_flush_adapter(sc
);
460 /************************************************************************
461 * Perform PCI-specific attachment actions.
464 ciss_init_pci(struct ciss_softc
*sc
)
466 uintptr_t cbase
, csize
, cofs
;
472 * Allocate register window first (we need this to find the config
476 sc
->ciss_regs_rid
= CISS_TL_SIMPLE_BAR_REGS
;
477 if ((sc
->ciss_regs_resource
=
478 bus_alloc_resource(sc
->ciss_dev
, SYS_RES_MEMORY
, &sc
->ciss_regs_rid
,
479 0, ~0, 1, RF_ACTIVE
)) == NULL
) {
480 ciss_printf(sc
, "can't allocate register window\n");
483 sc
->ciss_regs_bhandle
= rman_get_bushandle(sc
->ciss_regs_resource
);
484 sc
->ciss_regs_btag
= rman_get_bustag(sc
->ciss_regs_resource
);
487 * Find the BAR holding the config structure. If it's not the one
488 * we already mapped for registers, map it too.
490 sc
->ciss_cfg_rid
= CISS_TL_SIMPLE_READ(sc
, CISS_TL_SIMPLE_CFG_BAR
) & 0xffff;
491 if (sc
->ciss_cfg_rid
!= sc
->ciss_regs_rid
) {
492 if ((sc
->ciss_cfg_resource
=
493 bus_alloc_resource(sc
->ciss_dev
, SYS_RES_MEMORY
, &sc
->ciss_cfg_rid
,
494 0, ~0, 1, RF_ACTIVE
)) == NULL
) {
495 ciss_printf(sc
, "can't allocate config window\n");
498 cbase
= (uintptr_t)rman_get_virtual(sc
->ciss_cfg_resource
);
499 csize
= rman_get_end(sc
->ciss_cfg_resource
) -
500 rman_get_start(sc
->ciss_cfg_resource
) + 1;
502 cbase
= (uintptr_t)rman_get_virtual(sc
->ciss_regs_resource
);
503 csize
= rman_get_end(sc
->ciss_regs_resource
) -
504 rman_get_start(sc
->ciss_regs_resource
) + 1;
506 cofs
= CISS_TL_SIMPLE_READ(sc
, CISS_TL_SIMPLE_CFG_OFF
);
509 * Use the base/size/offset values we just calculated to
510 * sanity-check the config structure. If it's OK, point to it.
512 if ((cofs
+ sizeof(struct ciss_config_table
)) > csize
) {
513 ciss_printf(sc
, "config table outside window\n");
516 sc
->ciss_cfg
= (struct ciss_config_table
*)(cbase
+ cofs
);
517 debug(1, "config struct at %p", sc
->ciss_cfg
);
520 * Validate the config structure. If we supported other transport
521 * methods, we could select amongst them at this point in time.
523 if (strncmp(sc
->ciss_cfg
->signature
, "CISS", 4)) {
524 ciss_printf(sc
, "config signature mismatch (got '%c%c%c%c')\n",
525 sc
->ciss_cfg
->signature
[0], sc
->ciss_cfg
->signature
[1],
526 sc
->ciss_cfg
->signature
[2], sc
->ciss_cfg
->signature
[3]);
529 if ((sc
->ciss_cfg
->valence
< CISS_MIN_VALENCE
) ||
530 (sc
->ciss_cfg
->valence
> CISS_MAX_VALENCE
)) {
531 ciss_printf(sc
, "adapter interface specification (%d) unsupported\n",
532 sc
->ciss_cfg
->valence
);
537 * Put the board into simple mode, and tell it we're using the low
538 * 4GB of RAM. Set the default interrupt coalescing options.
540 if (!(sc
->ciss_cfg
->supported_methods
& CISS_TRANSPORT_METHOD_SIMPLE
)) {
541 ciss_printf(sc
, "adapter does not support 'simple' transport layer\n");
544 sc
->ciss_cfg
->requested_method
= CISS_TRANSPORT_METHOD_SIMPLE
;
545 sc
->ciss_cfg
->command_physlimit
= 0;
546 sc
->ciss_cfg
->interrupt_coalesce_delay
= CISS_INTERRUPT_COALESCE_DELAY
;
547 sc
->ciss_cfg
->interrupt_coalesce_count
= CISS_INTERRUPT_COALESCE_COUNT
;
549 if (ciss_update_config(sc
)) {
550 ciss_printf(sc
, "adapter refuses to accept config update (IDBR 0x%x)\n",
551 CISS_TL_SIMPLE_READ(sc
, CISS_TL_SIMPLE_IDBR
));
554 if (!(sc
->ciss_cfg
->active_method
!= CISS_TRANSPORT_METHOD_SIMPLE
)) {
556 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
557 sc
->ciss_cfg
->supported_methods
, sc
->ciss_cfg
->active_method
);
562 * Wait for the adapter to come ready.
564 if ((error
= ciss_wait_adapter(sc
)) != 0)
568 * Turn off interrupts before we go routing anything.
570 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc
);
573 * Allocate and set up our interrupt.
575 sc
->ciss_irq_rid
= 0;
576 if ((sc
->ciss_irq_resource
=
577 bus_alloc_resource(sc
->ciss_dev
, SYS_RES_IRQ
, &sc
->ciss_irq_rid
, 0, ~0, 1,
578 RF_ACTIVE
| RF_SHAREABLE
)) == NULL
) {
579 ciss_printf(sc
, "can't allocate interrupt\n");
582 error
= bus_setup_intr(sc
->ciss_dev
, sc
->ciss_irq_resource
,
584 &sc
->ciss_intr
, NULL
);
586 ciss_printf(sc
, "can't set up interrupt\n");
591 * Allocate the parent bus DMA tag appropriate for our PCI
594 * Note that "simple" adapters can only address within a 32-bit
597 if (bus_dma_tag_create(NULL
, /* parent */
598 1, 0, /* alignment, boundary */
599 BUS_SPACE_MAXADDR_32BIT
, /* lowaddr */
600 BUS_SPACE_MAXADDR
, /* highaddr */
601 NULL
, NULL
, /* filter, filterarg */
602 MAXBSIZE
, CISS_COMMAND_SG_LENGTH
, /* maxsize, nsegments */
603 BUS_SPACE_MAXSIZE_32BIT
, /* maxsegsize */
604 BUS_DMA_ALLOCNOW
, /* flags */
605 &sc
->ciss_parent_dmat
)) {
606 ciss_printf(sc
, "can't allocate parent DMA tag\n");
611 * Create DMA tag for mapping buffers into adapter-addressable
614 if (bus_dma_tag_create(sc
->ciss_parent_dmat
, /* parent */
615 1, 0, /* alignment, boundary */
616 BUS_SPACE_MAXADDR
, /* lowaddr */
617 BUS_SPACE_MAXADDR
, /* highaddr */
618 NULL
, NULL
, /* filter, filterarg */
619 MAXBSIZE
, CISS_COMMAND_SG_LENGTH
, /* maxsize, nsegments */
620 BUS_SPACE_MAXSIZE_32BIT
, /* maxsegsize */
622 &sc
->ciss_buffer_dmat
)) {
623 ciss_printf(sc
, "can't allocate buffer DMA tag\n");
629 /************************************************************************
630 * Wait for the adapter to come ready.
633 ciss_wait_adapter(struct ciss_softc
*sc
)
640 * Wait for the adapter to come ready.
642 if (!(sc
->ciss_cfg
->active_method
& CISS_TRANSPORT_METHOD_READY
)) {
643 ciss_printf(sc
, "waiting for adapter to come ready...\n");
644 for (i
= 0; !(sc
->ciss_cfg
->active_method
& CISS_TRANSPORT_METHOD_READY
); i
++) {
645 DELAY(1000000); /* one second */
647 ciss_printf(sc
, "timed out waiting for adapter to come ready\n");
655 /************************************************************************
656 * Flush the adapter cache.
659 ciss_flush_adapter(struct ciss_softc
*sc
)
661 struct ciss_request
*cr
;
662 struct ciss_bmic_flush_cache
*cbfc
;
663 int error
, command_status
;
671 * Build a BMIC request to flush the cache. We don't disable
672 * it, as we may be going to do more I/O (eg. we are emulating
673 * the Synchronise Cache command).
675 cbfc
= kmalloc(sizeof(*cbfc
), CISS_MALLOC_CLASS
, M_INTWAIT
| M_ZERO
);
676 if ((error
= ciss_get_bmic_request(sc
, &cr
, CISS_BMIC_FLUSH_CACHE
,
677 (void **)&cbfc
, sizeof(*cbfc
))) != 0)
681 * Submit the request and wait for it to complete.
683 if ((error
= ciss_synch_request(cr
, 60 * 1000)) != 0) {
684 ciss_printf(sc
, "error sending BMIC FLUSH_CACHE command (%d)\n", error
);
691 ciss_report_request(cr
, &command_status
, NULL
);
692 switch(command_status
) {
693 case CISS_CMD_STATUS_SUCCESS
:
696 ciss_printf(sc
, "error flushing cache (%s)\n",
697 ciss_name_command_status(command_status
));
704 kfree(cbfc
, CISS_MALLOC_CLASS
);
706 ciss_release_request(cr
);
710 /************************************************************************
711 * Allocate memory for the adapter command structures, initialise
712 * the request structures.
714 * Note that the entire set of commands are allocated in a single
718 ciss_init_requests(struct ciss_softc
*sc
)
720 struct ciss_request
*cr
;
726 * Calculate the number of request structures/commands we are
727 * going to provide for this adapter.
729 sc
->ciss_max_requests
= min(CISS_MAX_REQUESTS
, sc
->ciss_cfg
->max_outstanding_commands
);
731 if (1/*bootverbose*/)
732 ciss_printf(sc
, "using %d of %d available commands\n",
733 sc
->ciss_max_requests
, sc
->ciss_cfg
->max_outstanding_commands
);
736 * Create the DMA tag for commands.
738 if (bus_dma_tag_create(sc
->ciss_parent_dmat
, /* parent */
739 1, 0, /* alignment, boundary */
740 BUS_SPACE_MAXADDR
, /* lowaddr */
741 BUS_SPACE_MAXADDR
, /* highaddr */
742 NULL
, NULL
, /* filter, filterarg */
743 CISS_COMMAND_ALLOC_SIZE
*
744 sc
->ciss_max_requests
, 1, /* maxsize, nsegments */
745 BUS_SPACE_MAXSIZE_32BIT
, /* maxsegsize */
747 &sc
->ciss_command_dmat
)) {
748 ciss_printf(sc
, "can't allocate command DMA tag\n");
752 * Allocate memory and make it available for DMA.
754 if (bus_dmamem_alloc(sc
->ciss_command_dmat
, (void **)&sc
->ciss_command
,
755 BUS_DMA_NOWAIT
, &sc
->ciss_command_map
)) {
756 ciss_printf(sc
, "can't allocate command memory\n");
759 bus_dmamap_create(sc
->ciss_command_dmat
, 0, &sc
->ciss_command_map
);
760 bus_dmamap_load(sc
->ciss_command_dmat
, sc
->ciss_command_map
, sc
->ciss_command
,
761 sizeof(struct ciss_command
) * sc
->ciss_max_requests
,
762 ciss_command_map_helper
, sc
, 0);
763 bzero(sc
->ciss_command
, CISS_COMMAND_ALLOC_SIZE
* sc
->ciss_max_requests
);
766 * Set up the request and command structures, push requests onto
769 for (i
= 1; i
< sc
->ciss_max_requests
; i
++) {
770 cr
= &sc
->ciss_request
[i
];
773 ciss_enqueue_free(cr
);
779 ciss_command_map_helper(void *arg
, bus_dma_segment_t
*segs
, int nseg
, int error
)
781 struct ciss_softc
*sc
= (struct ciss_softc
*)arg
;
783 sc
->ciss_command_phys
= segs
->ds_addr
;
786 /************************************************************************
787 * Identify the adapter, print some information about it.
790 ciss_identify_adapter(struct ciss_softc
*sc
)
792 struct ciss_request
*cr
;
793 int error
, command_status
;
800 * Get a request, allocate storage for the adapter data.
802 if ((error
= ciss_get_bmic_request(sc
, &cr
, CISS_BMIC_ID_CTLR
,
803 (void **)&sc
->ciss_id
,
804 sizeof(*sc
->ciss_id
))) != 0)
808 * Submit the request and wait for it to complete.
810 if ((error
= ciss_synch_request(cr
, 60 * 1000)) != 0) {
811 ciss_printf(sc
, "error sending BMIC ID_CTLR command (%d)\n", error
);
818 ciss_report_request(cr
, &command_status
, NULL
);
819 switch(command_status
) {
820 case CISS_CMD_STATUS_SUCCESS
: /* buffer right size */
822 case CISS_CMD_STATUS_DATA_UNDERRUN
:
823 case CISS_CMD_STATUS_DATA_OVERRUN
:
824 ciss_printf(sc
, "data over/underrun reading adapter information\n");
826 ciss_printf(sc
, "error reading adapter information (%s)\n",
827 ciss_name_command_status(command_status
));
832 /* sanity-check reply */
833 if (!sc
->ciss_id
->big_map_supported
) {
834 ciss_printf(sc
, "adapter does not support BIG_MAP\n");
840 /* XXX later revisions may not need this */
841 sc
->ciss_flags
|= CISS_FLAG_FAKE_SYNCH
;
844 /* XXX only really required for old 5300 adapters? */
845 sc
->ciss_flags
|= CISS_FLAG_BMIC_ABORT
;
847 /* print information */
848 if (1/*bootverbose*/) {
849 ciss_printf(sc
, " %d logical drive%s configured\n",
850 sc
->ciss_id
->configured_logical_drives
,
851 (sc
->ciss_id
->configured_logical_drives
== 1) ? "" : "s");
852 ciss_printf(sc
, " firmware %4.4s\n", sc
->ciss_id
->running_firmware_revision
);
853 ciss_printf(sc
, " %d SCSI channels\n", sc
->ciss_id
->scsi_bus_count
);
855 ciss_printf(sc
, " signature '%.4s'\n", sc
->ciss_cfg
->signature
);
856 ciss_printf(sc
, " valence %d\n", sc
->ciss_cfg
->valence
);
857 ciss_printf(sc
, " supported I/O methods 0x%b\n",
858 sc
->ciss_cfg
->supported_methods
,
859 "\20\1READY\2simple\3performant\4MEMQ\n");
860 ciss_printf(sc
, " active I/O method 0x%b\n",
861 sc
->ciss_cfg
->active_method
, "\20\2simple\3performant\4MEMQ\n");
862 ciss_printf(sc
, " 4G page base 0x%08x\n",
863 sc
->ciss_cfg
->command_physlimit
);
864 ciss_printf(sc
, " interrupt coalesce delay %dus\n",
865 sc
->ciss_cfg
->interrupt_coalesce_delay
);
866 ciss_printf(sc
, " interrupt coalesce count %d\n",
867 sc
->ciss_cfg
->interrupt_coalesce_count
);
868 ciss_printf(sc
, " max outstanding commands %d\n",
869 sc
->ciss_cfg
->max_outstanding_commands
);
870 ciss_printf(sc
, " bus types 0x%b\n", sc
->ciss_cfg
->bus_types
,
871 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
872 ciss_printf(sc
, " server name '%.16s'\n", sc
->ciss_cfg
->server_name
);
873 ciss_printf(sc
, " heartbeat 0x%x\n", sc
->ciss_cfg
->heartbeat
);
878 if (sc
->ciss_id
!= NULL
) {
879 kfree(sc
->ciss_id
, CISS_MALLOC_CLASS
);
884 ciss_release_request(cr
);
888 /************************************************************************
889 * Find logical drives on the adapter.
892 ciss_init_logical(struct ciss_softc
*sc
)
894 struct ciss_request
*cr
;
895 struct ciss_command
*cc
;
896 struct ciss_report_cdb
*crc
;
897 struct ciss_lun_report
*cll
;
909 * Get a request, allocate storage for the address list.
911 if ((error
= ciss_get_request(sc
, &cr
)) != 0)
913 report_size
= sizeof(*cll
) + CISS_MAX_LOGICAL
* sizeof(union ciss_device_address
);
914 cll
= kmalloc(report_size
, CISS_MALLOC_CLASS
, M_INTWAIT
| M_ZERO
);
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 kfree(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 kfree(ld
->cl_ldrive
, CISS_MALLOC_CLASS
);
1158 ld
->cl_ldrive
= NULL
;
1160 if (ld
->cl_lstatus
!= NULL
) {
1161 kfree(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 callout_stop(&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 kfree(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
);
1378 bus_dmamap_destroy(sc
->ciss_command_dmat
, sc
->ciss_command_map
);
1380 if (sc
->ciss_buffer_dmat
)
1381 bus_dma_tag_destroy(sc
->ciss_command_dmat
);
1383 /* disconnect from CAM */
1384 if (sc
->ciss_cam_sim
) {
1385 xpt_bus_deregister(cam_sim_path(sc
->ciss_cam_sim
));
1386 cam_sim_free(sc
->ciss_cam_sim
);
1388 if (sc
->ciss_cam_devq
)
1389 cam_simq_release(sc
->ciss_cam_devq
);
1390 /* XXX what about ciss_cam_path? */
1393 /************************************************************************
1394 * Give a command to the adapter.
1396 * Note that this uses the simple transport layer directly. If we
1397 * want to add support for other layers, we'll need a switch of some
1400 * Note that the simple transport layer has no way of refusing a
1401 * command; we only have as many request structures as the adapter
1402 * supports commands, so we don't have to check (this presumes that
1403 * the adapter can handle commands as fast as we throw them at it).
1406 ciss_start(struct ciss_request
*cr
)
1408 struct ciss_command
*cc
; /* XXX debugging only */
1411 cc
= CISS_FIND_COMMAND(cr
);
1412 debug(2, "post command %d tag %d ", cr
->cr_tag
, cc
->header
.host_tag
);
1415 * Map the request's data.
1417 if ((error
= ciss_map_request(cr
)))
1421 ciss_print_request(cr
);
1425 * Post the command to the adapter.
1427 ciss_enqueue_busy(cr
);
1428 CISS_TL_SIMPLE_POST_CMD(cr
->cr_sc
, CISS_FIND_COMMANDPHYS(cr
));
1433 /************************************************************************
1434 * Fetch completed request(s) from the adapter, queue them for
1435 * completion handling.
1437 * Note that this uses the simple transport layer directly. If we
1438 * want to add support for other layers, we'll need a switch of some
1441 * Note that the simple transport mechanism does not require any
1442 * reentrancy protection; the OPQ read is atomic. If there is a
1443 * chance of a race with something else that might move the request
1444 * off the busy list, then we will have to lock against that
1445 * (eg. timeouts, etc.)
1448 ciss_done(struct ciss_softc
*sc
)
1450 struct ciss_request
*cr
;
1451 struct ciss_command
*cc
;
1452 u_int32_t tag
, index
;
1458 * Loop quickly taking requests from the adapter and moving them
1459 * from the busy queue to the completed queue.
1464 /* see if the OPQ contains anything */
1465 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc
))
1468 tag
= CISS_TL_SIMPLE_FETCH_CMD(sc
);
1469 if (tag
== CISS_TL_SIMPLE_OPQ_EMPTY
)
1472 debug(2, "completed command %d%s", index
,
1473 (tag
& CISS_HDR_HOST_TAG_ERROR
) ? " with error" : "");
1474 if (index
>= sc
->ciss_max_requests
) {
1475 ciss_printf(sc
, "completed invalid request %d (0x%x)\n", index
, tag
);
1478 cr
= &(sc
->ciss_request
[index
]);
1479 cc
= CISS_FIND_COMMAND(cr
);
1480 cc
->header
.host_tag
= tag
; /* not updated by adapter */
1481 if (ciss_remove_busy(cr
)) {
1482 /* assume this is garbage out of the adapter */
1483 ciss_printf(sc
, "completed nonbusy request %d\n", index
);
1485 ciss_enqueue_complete(cr
);
1491 * Invoke completion processing. If we can defer this out of
1492 * interrupt context, that'd be good.
1498 /************************************************************************
1499 * Take an interrupt from the adapter.
1502 ciss_intr(void *arg
)
1504 struct ciss_softc
*sc
= (struct ciss_softc
*)arg
;
1507 * The only interrupt we recognise indicates that there are
1508 * entries in the outbound post queue.
1513 /************************************************************************
1514 * Process completed requests.
1516 * Requests can be completed in three fashions:
1518 * - by invoking a callback function (cr_complete is non-null)
1519 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
1520 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
1523 ciss_complete(struct ciss_softc
*sc
)
1525 struct ciss_request
*cr
;
1530 * Loop taking requests off the completed queue and performing
1531 * completion processing on them.
1534 if ((cr
= ciss_dequeue_complete(sc
)) == NULL
)
1536 ciss_unmap_request(cr
);
1539 * If the request has a callback, invoke it.
1541 if (cr
->cr_complete
!= NULL
) {
1542 cr
->cr_complete(cr
);
1547 * If someone is sleeping on this request, wake them up.
1549 if (cr
->cr_flags
& CISS_REQ_SLEEP
) {
1550 cr
->cr_flags
&= ~CISS_REQ_SLEEP
;
1556 * If someone is polling this request for completion, signal.
1558 if (cr
->cr_flags
& CISS_REQ_POLL
) {
1559 cr
->cr_flags
&= ~CISS_REQ_POLL
;
1564 * Give up and throw the request back on the free queue. This
1565 * should never happen; resources will probably be lost.
1567 ciss_printf(sc
, "WARNING: completed command with no submitter\n");
1568 ciss_enqueue_free(cr
);
1572 /************************************************************************
1573 * Report on the completion status of a request, and pass back SCSI
1574 * and command status values.
1577 ciss_report_request(struct ciss_request
*cr
, int *command_status
, int *scsi_status
)
1579 struct ciss_command
*cc
;
1580 struct ciss_error_info
*ce
;
1584 cc
= CISS_FIND_COMMAND(cr
);
1585 ce
= (struct ciss_error_info
*)&(cc
->sg
[0]);
1588 * We don't consider data under/overrun an error for the Report
1589 * Logical/Physical LUNs commands.
1591 if ((cc
->header
.host_tag
& CISS_HDR_HOST_TAG_ERROR
) &&
1592 ((cc
->cdb
.cdb
[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS
) ||
1593 (cc
->cdb
.cdb
[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS
))) {
1594 cc
->header
.host_tag
&= ~CISS_HDR_HOST_TAG_ERROR
;
1595 debug(2, "ignoring irrelevant under/overrun error");
1599 * Check the command's error bit, if clear, there's no status and
1602 if (!(cc
->header
.host_tag
& CISS_HDR_HOST_TAG_ERROR
)) {
1603 if (scsi_status
!= NULL
)
1604 *scsi_status
= SCSI_STATUS_OK
;
1605 if (command_status
!= NULL
)
1606 *command_status
= CISS_CMD_STATUS_SUCCESS
;
1609 if (command_status
!= NULL
)
1610 *command_status
= ce
->command_status
;
1611 if (scsi_status
!= NULL
) {
1612 if (ce
->command_status
== CISS_CMD_STATUS_TARGET_STATUS
) {
1613 *scsi_status
= ce
->scsi_status
;
1619 ciss_printf(cr
->cr_sc
, "command status 0x%x (%s) scsi status 0x%x\n",
1620 ce
->command_status
, ciss_name_command_status(ce
->command_status
),
1622 if (ce
->command_status
== CISS_CMD_STATUS_INVALID_COMMAND
) {
1623 ciss_printf(cr
->cr_sc
, "invalid command, offense size %d at %d, value 0x%x\n",
1624 ce
->additional_error_info
.invalid_command
.offense_size
,
1625 ce
->additional_error_info
.invalid_command
.offense_offset
,
1626 ce
->additional_error_info
.invalid_command
.offense_value
);
1632 /************************************************************************
1633 * Issue a request and don't return until it's completed.
1635 * Depending on adapter status, we may poll or sleep waiting for
1639 ciss_synch_request(struct ciss_request
*cr
, int timeout
)
1641 if (cr
->cr_sc
->ciss_flags
& CISS_FLAG_RUNNING
) {
1642 return(ciss_wait_request(cr
, timeout
));
1644 return(ciss_poll_request(cr
, timeout
));
1648 /************************************************************************
1649 * Issue a request and poll for completion.
1651 * Timeout in milliseconds.
1654 ciss_poll_request(struct ciss_request
*cr
, int timeout
)
1660 cr
->cr_flags
|= CISS_REQ_POLL
;
1661 if ((error
= ciss_start(cr
)) != 0)
1665 ciss_done(cr
->cr_sc
);
1666 if (!(cr
->cr_flags
& CISS_REQ_POLL
))
1669 } while (timeout
-- >= 0);
1670 return(EWOULDBLOCK
);
1673 /************************************************************************
1674 * Issue a request and sleep waiting for completion.
1676 * Timeout in milliseconds. Note that a spurious wakeup will reset
1680 ciss_wait_request(struct ciss_request
*cr
, int timeout
)
1686 cr
->cr_flags
|= CISS_REQ_SLEEP
;
1687 if ((error
= ciss_start(cr
)) != 0)
1691 while (cr
->cr_flags
& CISS_REQ_SLEEP
) {
1692 error
= tsleep(cr
, PCATCH
, "cissREQ", (timeout
* hz
) / 1000);
1694 * On wakeup or interruption due to restartable activity, go
1695 * back and check to see if we're done.
1697 if ((error
== 0) || (error
== ERESTART
)) {
1702 * Timeout, interrupted system call, etc.
1711 /************************************************************************
1712 * Abort a request. Note that a potential exists here to race the
1713 * request being completed; the caller must deal with this.
1716 ciss_abort_request(struct ciss_request
*ar
)
1718 struct ciss_request
*cr
;
1719 struct ciss_command
*cc
;
1720 struct ciss_message_cdb
*cmc
;
1726 if ((error
= ciss_get_request(ar
->cr_sc
, &cr
)) != 0)
1729 /* build the abort command */
1730 cc
= CISS_FIND_COMMAND(cr
);
1731 cc
->header
.address
.mode
.mode
= CISS_HDR_ADDRESS_MODE_PERIPHERAL
; /* addressing? */
1732 cc
->header
.address
.physical
.target
= 0;
1733 cc
->header
.address
.physical
.bus
= 0;
1734 cc
->cdb
.cdb_length
= sizeof(*cmc
);
1735 cc
->cdb
.type
= CISS_CDB_TYPE_MESSAGE
;
1736 cc
->cdb
.attribute
= CISS_CDB_ATTRIBUTE_SIMPLE
;
1737 cc
->cdb
.direction
= CISS_CDB_DIRECTION_NONE
;
1738 cc
->cdb
.timeout
= 30;
1740 cmc
= (struct ciss_message_cdb
*)&(cc
->cdb
.cdb
[0]);
1741 cmc
->opcode
= CISS_OPCODE_MESSAGE_ABORT
;
1742 cmc
->type
= CISS_MESSAGE_ABORT_TASK
;
1743 cmc
->abort_tag
= ar
->cr_tag
; /* endianness?? */
1746 * Send the request and wait for a response. If we believe we
1747 * aborted the request OK, clear the flag that indicates it's
1750 error
= ciss_synch_request(cr
, 35 * 1000);
1752 error
= ciss_report_request(cr
, NULL
, NULL
);
1753 ciss_release_request(cr
);
1760 /************************************************************************
1761 * Fetch and initialise a request
1764 ciss_get_request(struct ciss_softc
*sc
, struct ciss_request
**crp
)
1766 struct ciss_request
*cr
;
1771 * Get a request and clean it up.
1773 if ((cr
= ciss_dequeue_free(sc
)) == NULL
)
1778 cr
->cr_complete
= NULL
;
1780 ciss_preen_command(cr
);
1786 ciss_preen_command(struct ciss_request
*cr
)
1788 struct ciss_command
*cc
;
1792 * Clean up the command structure.
1794 * Note that we set up the error_info structure here, since the
1795 * length can be overwritten by any command.
1797 cc
= CISS_FIND_COMMAND(cr
);
1798 cc
->header
.sg_in_list
= 0; /* kinda inefficient this way */
1799 cc
->header
.sg_total
= 0;
1800 cc
->header
.host_tag
= cr
->cr_tag
<< 2;
1801 cc
->header
.host_tag_zeroes
= 0;
1802 cmdphys
= CISS_FIND_COMMANDPHYS(cr
);
1803 cc
->error_info
.error_info_address
= cmdphys
+ sizeof(struct ciss_command
);
1804 cc
->error_info
.error_info_length
= CISS_COMMAND_ALLOC_SIZE
- sizeof(struct ciss_command
);
1808 /************************************************************************
1809 * Release a request to the free list.
1812 ciss_release_request(struct ciss_request
*cr
)
1814 struct ciss_softc
*sc
;
1820 /* release the request to the free queue */
1821 ciss_requeue_free(cr
);
1824 /************************************************************************
1825 * Allocate a request that will be used to send a BMIC command. Do some
1826 * of the common setup here to avoid duplicating it everywhere else.
1829 ciss_get_bmic_request(struct ciss_softc
*sc
, struct ciss_request
**crp
,
1830 int opcode
, void **bufp
, size_t bufsize
)
1832 struct ciss_request
*cr
;
1833 struct ciss_command
*cc
;
1834 struct ciss_bmic_cdb
*cbc
;
1847 if ((error
= ciss_get_request(sc
, &cr
)) != 0)
1851 * Allocate data storage if requested, determine the data direction.
1854 if ((bufsize
> 0) && (bufp
!= NULL
)) {
1855 if (*bufp
== NULL
) {
1856 buf
= kmalloc(bufsize
, CISS_MALLOC_CLASS
, M_INTWAIT
| M_ZERO
);
1859 dataout
= 1; /* we are given a buffer, so we are writing */
1864 * Build a CISS BMIC command to get the logical drive ID.
1867 cr
->cr_length
= bufsize
;
1869 cr
->cr_flags
= CISS_REQ_DATAIN
;
1871 cc
= CISS_FIND_COMMAND(cr
);
1872 cc
->header
.address
.physical
.mode
= CISS_HDR_ADDRESS_MODE_PERIPHERAL
;
1873 cc
->header
.address
.physical
.bus
= 0;
1874 cc
->header
.address
.physical
.target
= 0;
1875 cc
->cdb
.cdb_length
= sizeof(*cbc
);
1876 cc
->cdb
.type
= CISS_CDB_TYPE_COMMAND
;
1877 cc
->cdb
.attribute
= CISS_CDB_ATTRIBUTE_SIMPLE
;
1878 cc
->cdb
.direction
= dataout
? CISS_CDB_DIRECTION_WRITE
: CISS_CDB_DIRECTION_READ
;
1879 cc
->cdb
.timeout
= 0;
1881 cbc
= (struct ciss_bmic_cdb
*)&(cc
->cdb
.cdb
[0]);
1882 bzero(cbc
, sizeof(*cbc
));
1883 cbc
->opcode
= dataout
? CISS_ARRAY_CONTROLLER_WRITE
: CISS_ARRAY_CONTROLLER_READ
;
1884 cbc
->bmic_opcode
= opcode
;
1885 cbc
->size
= htons((u_int16_t
)bufsize
);
1890 ciss_release_request(cr
);
1891 if ((bufp
!= NULL
) && (*bufp
== NULL
) && (buf
!= NULL
))
1892 kfree(buf
, CISS_MALLOC_CLASS
);
1895 if ((bufp
!= NULL
) && (*bufp
== NULL
) && (buf
!= NULL
))
1901 /************************************************************************
1902 * Handle a command passed in from userspace.
1905 ciss_user_command(struct ciss_softc
*sc
, IOCTL_Command_struct
*ioc
)
1907 struct ciss_request
*cr
;
1908 struct ciss_command
*cc
;
1909 struct ciss_error_info
*ce
;
1919 if ((error
= ciss_get_request(sc
, &cr
)) != 0)
1921 cc
= CISS_FIND_COMMAND(cr
);
1924 * Allocate an in-kernel databuffer if required, copy in user data.
1926 cr
->cr_length
= ioc
->buf_size
;
1927 if (ioc
->buf_size
> 0) {
1928 if ((cr
->cr_data
= kmalloc(ioc
->buf_size
, CISS_MALLOC_CLASS
, M_WAITOK
)) == NULL
) {
1932 if ((error
= copyin(ioc
->buf
, cr
->cr_data
, ioc
->buf_size
))) {
1933 debug(0, "copyin: bad data buffer %p/%d", ioc
->buf
, ioc
->buf_size
);
1939 * Build the request based on the user command.
1941 bcopy(&ioc
->LUN_info
, &cc
->header
.address
, sizeof(cc
->header
.address
));
1942 bcopy(&ioc
->Request
, &cc
->cdb
, sizeof(cc
->cdb
));
1944 /* XXX anything else to populate here? */
1949 if ((error
= ciss_synch_request(cr
, 60 * 1000))) {
1950 debug(0, "request failed - %d", error
);
1955 * Copy the results back to the user.
1957 ce
= (struct ciss_error_info
*)&(cc
->sg
[0]);
1958 bcopy(ce
, &ioc
->error_info
, sizeof(*ce
));
1959 if ((ioc
->buf_size
> 0) &&
1960 (error
= copyout(cr
->cr_data
, ioc
->buf
, ioc
->buf_size
))) {
1961 debug(0, "copyout: bad data buffer %p/%d", ioc
->buf
, ioc
->buf_size
);
1969 if ((cr
!= NULL
) && (cr
->cr_data
!= NULL
))
1970 kfree(cr
->cr_data
, CISS_MALLOC_CLASS
);
1972 ciss_release_request(cr
);
1976 /************************************************************************
1977 * Map a request into bus-visible space, initialise the scatter/gather
1981 ciss_map_request(struct ciss_request
*cr
)
1983 struct ciss_softc
*sc
;
1989 /* check that mapping is necessary */
1990 if ((cr
->cr_flags
& CISS_REQ_MAPPED
) || (cr
->cr_data
== NULL
))
1993 bus_dmamap_create(sc
->ciss_buffer_dmat
, 0, &cr
->cr_datamap
);
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 bus_dmamap_destroy(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
= kmalloc(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, "unsupported 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 ksprintf(sc
->ciss_logical
[target
].cl_name
, "%s%d", periph
->periph_name
, periph
->unit_number
);
2578 sc
->ciss_logical
[target
].cl_name
[0] = 0;
2582 /************************************************************************
2583 * Periodic status monitoring.
2586 ciss_periodic(void *arg
)
2588 struct ciss_softc
*sc
;
2592 sc
= (struct ciss_softc
*)arg
;
2595 * Check the adapter heartbeat.
2597 if (sc
->ciss_cfg
->heartbeat
== sc
->ciss_heartbeat
) {
2598 sc
->ciss_heart_attack
++;
2599 debug(0, "adapter heart attack in progress 0x%x/%d",
2600 sc
->ciss_heartbeat
, sc
->ciss_heart_attack
);
2601 if (sc
->ciss_heart_attack
== 3) {
2602 ciss_printf(sc
, "ADAPTER HEARTBEAT FAILED\n");
2603 /* XXX should reset adapter here */
2606 sc
->ciss_heartbeat
= sc
->ciss_cfg
->heartbeat
;
2607 sc
->ciss_heart_attack
= 0;
2608 debug(3, "new heartbeat 0x%x", sc
->ciss_heartbeat
);
2612 * If the notify event request has died for some reason, or has
2613 * not started yet, restart it.
2615 if (!(sc
->ciss_flags
& CISS_FLAG_NOTIFY_OK
)) {
2616 debug(0, "(re)starting Event Notify chain");
2617 ciss_notify_event(sc
);
2623 if (!(sc
->ciss_flags
& CISS_FLAG_ABORTING
))
2624 callout_reset(&sc
->ciss_periodic
, CISS_HEARTBEAT_RATE
* hz
,
2628 /************************************************************************
2629 * Request a notification response from the adapter.
2631 * If (cr) is NULL, this is the first request of the adapter, so
2632 * reset the adapter's message pointer and start with the oldest
2633 * message available.
2636 ciss_notify_event(struct ciss_softc
*sc
)
2638 struct ciss_request
*cr
;
2639 struct ciss_command
*cc
;
2640 struct ciss_notify_cdb
*cnc
;
2645 cr
= sc
->ciss_periodic_notify
;
2647 /* get a request if we don't already have one */
2649 if ((error
= ciss_get_request(sc
, &cr
)) != 0) {
2650 debug(0, "can't get notify event request");
2653 sc
->ciss_periodic_notify
= cr
;
2654 cr
->cr_complete
= ciss_notify_complete
;
2655 debug(1, "acquired request %d", cr
->cr_tag
);
2659 * Get a databuffer if we don't already have one, note that the
2660 * adapter command wants a larger buffer than the actual
2663 if (cr
->cr_data
== NULL
) {
2664 cr
->cr_data
= kmalloc(CISS_NOTIFY_DATA_SIZE
, CISS_MALLOC_CLASS
, M_INTWAIT
);
2665 cr
->cr_length
= CISS_NOTIFY_DATA_SIZE
;
2668 /* re-setup the request's command (since we never release it) XXX overkill*/
2669 ciss_preen_command(cr
);
2671 /* (re)build the notify event command */
2672 cc
= CISS_FIND_COMMAND(cr
);
2673 cc
->header
.address
.physical
.mode
= CISS_HDR_ADDRESS_MODE_PERIPHERAL
;
2674 cc
->header
.address
.physical
.bus
= 0;
2675 cc
->header
.address
.physical
.target
= 0;
2677 cc
->cdb
.cdb_length
= sizeof(*cnc
);
2678 cc
->cdb
.type
= CISS_CDB_TYPE_COMMAND
;
2679 cc
->cdb
.attribute
= CISS_CDB_ATTRIBUTE_SIMPLE
;
2680 cc
->cdb
.direction
= CISS_CDB_DIRECTION_READ
;
2681 cc
->cdb
.timeout
= 0; /* no timeout, we hope */
2683 cnc
= (struct ciss_notify_cdb
*)&(cc
->cdb
.cdb
[0]);
2684 bzero(cr
->cr_data
, CISS_NOTIFY_DATA_SIZE
);
2685 cnc
->opcode
= CISS_OPCODE_READ
;
2686 cnc
->command
= CISS_COMMAND_NOTIFY_ON_EVENT
;
2687 cnc
->timeout
= 0; /* no timeout, we hope */
2688 cnc
->synchronous
= 0;
2690 cnc
->seek_to_oldest
= 0;
2692 cnc
->length
= htonl(CISS_NOTIFY_DATA_SIZE
);
2694 /* submit the request */
2695 error
= ciss_start(cr
);
2700 if (cr
->cr_data
!= NULL
)
2701 kfree(cr
->cr_data
, CISS_MALLOC_CLASS
);
2702 ciss_release_request(cr
);
2704 sc
->ciss_periodic_notify
= NULL
;
2705 debug(0, "can't submit notify event request");
2706 sc
->ciss_flags
&= ~CISS_FLAG_NOTIFY_OK
;
2708 debug(1, "notify event submitted");
2709 sc
->ciss_flags
|= CISS_FLAG_NOTIFY_OK
;
2714 ciss_notify_complete(struct ciss_request
*cr
)
2716 struct ciss_command
*cc
;
2717 struct ciss_notify
*cn
;
2718 struct ciss_softc
*sc
;
2724 cc
= CISS_FIND_COMMAND(cr
);
2725 cn
= (struct ciss_notify
*)cr
->cr_data
;
2729 * Report request results, decode status.
2731 ciss_report_request(cr
, &command_status
, &scsi_status
);
2734 * Abort the chain on a fatal error.
2736 * XXX which of these are actually errors?
2738 if ((command_status
!= CISS_CMD_STATUS_SUCCESS
) &&
2739 (command_status
!= CISS_CMD_STATUS_TARGET_STATUS
) &&
2740 (command_status
!= CISS_CMD_STATUS_TIMEOUT
)) { /* XXX timeout? */
2741 ciss_printf(sc
, "fatal error in Notify Event request (%s)\n",
2742 ciss_name_command_status(command_status
));
2743 ciss_release_request(cr
);
2744 sc
->ciss_flags
&= ~CISS_FLAG_NOTIFY_OK
;
2749 * If the adapter gave us a text message, print it.
2751 if (cn
->message
[0] != 0)
2752 ciss_printf(sc
, "*** %.80s\n", cn
->message
);
2754 debug(0, "notify event class %d subclass %d detail %d",
2755 cn
->class, cn
->subclass
, cn
->detail
);
2758 * If there's room, save the event for a user-level tool.
2760 if (((sc
->ciss_notify_head
+ 1) % CISS_MAX_EVENTS
) != sc
->ciss_notify_tail
) {
2761 sc
->ciss_notify
[sc
->ciss_notify_head
] = *cn
;
2762 sc
->ciss_notify_head
= (sc
->ciss_notify_head
+ 1) % CISS_MAX_EVENTS
;
2766 * Some events are directly of interest to us.
2768 switch (cn
->class) {
2769 case CISS_NOTIFY_LOGICAL
:
2770 ciss_notify_logical(sc
, cn
);
2772 case CISS_NOTIFY_PHYSICAL
:
2773 ciss_notify_physical(sc
, cn
);
2778 * If the response indicates that the notifier has been aborted,
2779 * release the notifier command.
2781 if ((cn
->class == CISS_NOTIFY_NOTIFIER
) &&
2782 (cn
->subclass
== CISS_NOTIFY_NOTIFIER_STATUS
) &&
2783 (cn
->detail
== 1)) {
2784 debug(0, "notifier exiting");
2785 sc
->ciss_flags
&= ~CISS_FLAG_NOTIFY_OK
;
2786 ciss_release_request(cr
);
2787 sc
->ciss_periodic_notify
= NULL
;
2788 wakeup(&sc
->ciss_periodic_notify
);
2792 * Send a new notify event command, if we're not aborting.
2794 if (!(sc
->ciss_flags
& CISS_FLAG_ABORTING
)) {
2795 ciss_notify_event(sc
);
2799 /************************************************************************
2800 * Abort the Notify Event chain.
2802 * Note that we can't just abort the command in progress; we have to
2803 * explicitly issue an Abort Notify Event command in order for the
2804 * adapter to clean up correctly.
2806 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
2807 * the chain will not restart itself.
2810 ciss_notify_abort(struct ciss_softc
*sc
)
2812 struct ciss_request
*cr
;
2813 struct ciss_command
*cc
;
2814 struct ciss_notify_cdb
*cnc
;
2815 int error
, command_status
, scsi_status
;
2822 /* verify that there's an outstanding command */
2823 if (!(sc
->ciss_flags
& CISS_FLAG_NOTIFY_OK
))
2826 /* get a command to issue the abort with */
2827 if ((error
= ciss_get_request(sc
, &cr
)))
2830 /* get a buffer for the result */
2831 cr
->cr_data
= kmalloc(CISS_NOTIFY_DATA_SIZE
, CISS_MALLOC_CLASS
, M_INTWAIT
);
2832 cr
->cr_length
= CISS_NOTIFY_DATA_SIZE
;
2835 cc
= CISS_FIND_COMMAND(cr
);
2836 cc
->header
.address
.physical
.mode
= CISS_HDR_ADDRESS_MODE_PERIPHERAL
;
2837 cc
->header
.address
.physical
.bus
= 0;
2838 cc
->header
.address
.physical
.target
= 0;
2839 cc
->cdb
.cdb_length
= sizeof(*cnc
);
2840 cc
->cdb
.type
= CISS_CDB_TYPE_COMMAND
;
2841 cc
->cdb
.attribute
= CISS_CDB_ATTRIBUTE_SIMPLE
;
2842 cc
->cdb
.direction
= CISS_CDB_DIRECTION_READ
;
2843 cc
->cdb
.timeout
= 0; /* no timeout, we hope */
2845 cnc
= (struct ciss_notify_cdb
*)&(cc
->cdb
.cdb
[0]);
2846 bzero(cnc
, sizeof(*cnc
));
2847 cnc
->opcode
= CISS_OPCODE_WRITE
;
2848 cnc
->command
= CISS_COMMAND_ABORT_NOTIFY
;
2849 cnc
->length
= htonl(CISS_NOTIFY_DATA_SIZE
);
2851 ciss_print_request(cr
);
2854 * Submit the request and wait for it to complete.
2856 if ((error
= ciss_synch_request(cr
, 60 * 1000)) != 0) {
2857 ciss_printf(sc
, "Abort Notify Event command failed (%d)\n", error
);
2864 ciss_report_request(cr
, &command_status
, &scsi_status
);
2865 switch(command_status
) {
2866 case CISS_CMD_STATUS_SUCCESS
:
2868 case CISS_CMD_STATUS_INVALID_COMMAND
:
2870 * Some older adapters don't support the CISS version of this
2871 * command. Fall back to using the BMIC version.
2873 error
= ciss_notify_abort_bmic(sc
);
2878 case CISS_CMD_STATUS_TARGET_STATUS
:
2880 * This can happen if the adapter thinks there wasn't an outstanding
2881 * Notify Event command but we did. We clean up here.
2883 if (scsi_status
== CISS_SCSI_STATUS_CHECK_CONDITION
) {
2884 if (sc
->ciss_periodic_notify
!= NULL
)
2885 ciss_release_request(sc
->ciss_periodic_notify
);
2892 ciss_printf(sc
, "Abort Notify Event command failed (%s)\n",
2893 ciss_name_command_status(command_status
));
2899 * Sleep waiting for the notifier command to complete. Note
2900 * that if it doesn't, we may end up in a bad situation, since
2901 * the adapter may deliver it later. Also note that the adapter
2902 * requires the Notify Event command to be cancelled in order to
2903 * maintain internal bookkeeping.
2906 while (sc
->ciss_periodic_notify
!= NULL
) {
2907 error
= tsleep(&sc
->ciss_periodic_notify
, 0, "cissNEA", hz
* 5);
2908 if (error
== EWOULDBLOCK
) {
2909 ciss_printf(sc
, "Notify Event command failed to abort, adapter may wedge.\n");
2916 /* release the cancel request */
2918 if (cr
->cr_data
!= NULL
)
2919 kfree(cr
->cr_data
, CISS_MALLOC_CLASS
);
2920 ciss_release_request(cr
);
2923 sc
->ciss_flags
&= ~CISS_FLAG_NOTIFY_OK
;
2927 /************************************************************************
2928 * Abort the Notify Event chain using a BMIC command.
2931 ciss_notify_abort_bmic(struct ciss_softc
*sc
)
2933 struct ciss_request
*cr
;
2934 int error
, command_status
;
2941 /* verify that there's an outstanding command */
2942 if (!(sc
->ciss_flags
& CISS_FLAG_NOTIFY_OK
))
2946 * Build a BMIC command to cancel the Notify on Event command.
2948 * Note that we are sending a CISS opcode here. Odd.
2950 if ((error
= ciss_get_bmic_request(sc
, &cr
, CISS_COMMAND_ABORT_NOTIFY
,
2955 * Submit the request and wait for it to complete.
2957 if ((error
= ciss_synch_request(cr
, 60 * 1000)) != 0) {
2958 ciss_printf(sc
, "error sending BMIC Cancel Notify on Event command (%d)\n", error
);
2965 ciss_report_request(cr
, &command_status
, NULL
);
2966 switch(command_status
) {
2967 case CISS_CMD_STATUS_SUCCESS
:
2970 ciss_printf(sc
, "error cancelling Notify on Event (%s)\n",
2971 ciss_name_command_status(command_status
));
2978 ciss_release_request(cr
);
2982 /************************************************************************
2983 * Handle a notify event relating to the status of a logical drive.
2985 * XXX need to be able to defer some of these to properly handle
2986 * calling the "ID Physical drive" command, unless the 'extended'
2987 * drive IDs are always in BIG_MAP format.
2990 ciss_notify_logical(struct ciss_softc
*sc
, struct ciss_notify
*cn
)
2992 struct ciss_ldrive
*ld
;
2997 ld
= &sc
->ciss_logical
[cn
->data
.logical_status
.logical_drive
];
2999 switch (cn
->subclass
) {
3000 case CISS_NOTIFY_LOGICAL_STATUS
:
3001 switch (cn
->detail
) {
3003 ciss_name_device(sc
, cn
->data
.logical_status
.logical_drive
);
3004 ciss_printf(sc
, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3005 cn
->data
.logical_status
.logical_drive
, ld
->cl_name
,
3006 ciss_name_ldrive_status(cn
->data
.logical_status
.previous_state
),
3007 ciss_name_ldrive_status(cn
->data
.logical_status
.new_state
),
3008 cn
->data
.logical_status
.spare_state
,
3009 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3012 * Update our idea of the drive's status.
3014 ostatus
= ciss_decode_ldrive_status(cn
->data
.logical_status
.previous_state
);
3015 ld
->cl_status
= ciss_decode_ldrive_status(cn
->data
.logical_status
.new_state
);
3016 if (ld
->cl_lstatus
!= NULL
)
3017 ld
->cl_lstatus
->status
= cn
->data
.logical_status
.new_state
;
3021 * Have CAM rescan the drive if its status has changed.
3023 if (ostatus
!= ld
->cl_status
)
3024 ciss_cam_rescan_target(sc
, cn
->data
.logical_status
.logical_drive
);
3029 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3030 ciss_name_device(sc
, cn
->data
.logical_status
.logical_drive
);
3031 ciss_printf(sc
, "logical drive %d (%s) media exchanged, ready to go online\n",
3032 cn
->data
.logical_status
.logical_drive
, ld
->cl_name
);
3033 ciss_accept_media(sc
, cn
->data
.logical_status
.logical_drive
, 1);
3038 ciss_printf(sc
, "rebuild of logical drive %d (%s) failed due to %s error\n",
3039 cn
->data
.rebuild_aborted
.logical_drive
,
3040 sc
->ciss_logical
[cn
->data
.rebuild_aborted
.logical_drive
].cl_name
,
3041 (cn
->detail
== 2) ? "read" : "write");
3046 case CISS_NOTIFY_LOGICAL_ERROR
:
3047 if (cn
->detail
== 0) {
3048 ciss_printf(sc
, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3049 cn
->data
.io_error
.logical_drive
,
3050 sc
->ciss_logical
[cn
->data
.io_error
.logical_drive
].cl_name
,
3051 cn
->data
.io_error
.failure_bus
,
3052 cn
->data
.io_error
.failure_drive
);
3053 /* XXX should we take the drive down at this point, or will we be told? */
3057 case CISS_NOTIFY_LOGICAL_SURFACE
:
3058 if (cn
->detail
== 0)
3059 ciss_printf(sc
, "logical drive %d (%s) completed consistency initialisation\n",
3060 cn
->data
.consistency_completed
.logical_drive
,
3061 sc
->ciss_logical
[cn
->data
.consistency_completed
.logical_drive
].cl_name
);
3066 /************************************************************************
3067 * Handle a notify event relating to the status of a physical drive.
3070 ciss_notify_physical(struct ciss_softc
*sc
, struct ciss_notify
*cn
)
3075 /************************************************************************
3079 ciss_print_request(struct ciss_request
*cr
)
3081 struct ciss_softc
*sc
;
3082 struct ciss_command
*cc
;
3086 cc
= CISS_FIND_COMMAND(cr
);
3088 ciss_printf(sc
, "REQUEST @ %p\n", cr
);
3089 ciss_printf(sc
, " data %p/%d tag %d flags %b\n",
3090 cr
->cr_data
, cr
->cr_length
, cr
->cr_tag
, cr
->cr_flags
,
3091 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
3092 ciss_printf(sc
, " sg list/total %d/%d host tag 0x%x\n",
3093 cc
->header
.sg_in_list
, cc
->header
.sg_total
, cc
->header
.host_tag
);
3094 switch(cc
->header
.address
.mode
.mode
) {
3095 case CISS_HDR_ADDRESS_MODE_PERIPHERAL
:
3096 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL
:
3097 ciss_printf(sc
, " physical bus %d target %d\n",
3098 cc
->header
.address
.physical
.bus
, cc
->header
.address
.physical
.target
);
3100 case CISS_HDR_ADDRESS_MODE_LOGICAL
:
3101 ciss_printf(sc
, " logical unit %d\n", cc
->header
.address
.logical
.lun
);
3104 ciss_printf(sc
, " %s cdb length %d type %s attribute %s\n",
3105 (cc
->cdb
.direction
== CISS_CDB_DIRECTION_NONE
) ? "no-I/O" :
3106 (cc
->cdb
.direction
== CISS_CDB_DIRECTION_READ
) ? "READ" :
3107 (cc
->cdb
.direction
== CISS_CDB_DIRECTION_WRITE
) ? "WRITE" : "??",
3109 (cc
->cdb
.type
== CISS_CDB_TYPE_COMMAND
) ? "command" :
3110 (cc
->cdb
.type
== CISS_CDB_TYPE_MESSAGE
) ? "message" : "??",
3111 (cc
->cdb
.attribute
== CISS_CDB_ATTRIBUTE_UNTAGGED
) ? "untagged" :
3112 (cc
->cdb
.attribute
== CISS_CDB_ATTRIBUTE_SIMPLE
) ? "simple" :
3113 (cc
->cdb
.attribute
== CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE
) ? "head-of-queue" :
3114 (cc
->cdb
.attribute
== CISS_CDB_ATTRIBUTE_ORDERED
) ? "ordered" :
3115 (cc
->cdb
.attribute
== CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT
) ? "auto-contingent" : "??");
3116 ciss_printf(sc
, " %*D\n", cc
->cdb
.cdb_length
, &cc
->cdb
.cdb
[0], " ");
3118 if (cc
->header
.host_tag
& CISS_HDR_HOST_TAG_ERROR
) {
3119 /* XXX print error info */
3121 /* since we don't use chained s/g, don't support it here */
3122 for (i
= 0; i
< cc
->header
.sg_in_list
; i
++) {
3124 ciss_printf(sc
, " ");
3125 kprintf("0x%08x/%d ", (u_int32_t
)cc
->sg
[i
].address
, cc
->sg
[i
].length
);
3126 if ((((i
+ 1) % 4) == 0) || (i
== (cc
->header
.sg_in_list
- 1)))
3132 /************************************************************************
3133 * Print information about the status of a logical drive.
3136 ciss_print_ldrive(struct ciss_softc
*sc
, struct ciss_ldrive
*ld
)
3140 if (ld
->cl_lstatus
== NULL
) {
3141 kprintf("does not exist\n");
3145 /* print drive status */
3146 switch(ld
->cl_lstatus
->status
) {
3147 case CISS_LSTATUS_OK
:
3148 kprintf("online\n");
3150 case CISS_LSTATUS_INTERIM_RECOVERY
:
3151 kprintf("in interim recovery mode\n");
3153 case CISS_LSTATUS_READY_RECOVERY
:
3154 kprintf("ready to begin recovery\n");
3156 case CISS_LSTATUS_RECOVERING
:
3157 bus
= CISS_BIG_MAP_BUS(sc
, ld
->cl_lstatus
->drive_rebuilding
);
3158 target
= CISS_BIG_MAP_BUS(sc
, ld
->cl_lstatus
->drive_rebuilding
);
3159 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
3160 bus
, target
, ld
->cl_lstatus
->blocks_to_recover
);
3162 case CISS_LSTATUS_EXPANDING
:
3163 kprintf("being expanded, %u blocks remaining\n",
3164 ld
->cl_lstatus
->blocks_to_recover
);
3166 case CISS_LSTATUS_QUEUED_FOR_EXPANSION
:
3167 kprintf("queued for expansion\n");
3169 case CISS_LSTATUS_FAILED
:
3170 kprintf("queued for expansion\n");
3172 case CISS_LSTATUS_WRONG_PDRIVE
:
3173 kprintf("wrong physical drive inserted\n");
3175 case CISS_LSTATUS_MISSING_PDRIVE
:
3176 kprintf("missing a needed physical drive\n");
3178 case CISS_LSTATUS_BECOMING_READY
:
3179 kprintf("becoming ready\n");
3183 /* print failed physical drives */
3184 for (i
= 0; i
< CISS_BIG_MAP_ENTRIES
/ 8; i
++) {
3185 bus
= CISS_BIG_MAP_BUS(sc
, ld
->cl_lstatus
->drive_failure_map
[i
]);
3186 target
= CISS_BIG_MAP_TARGET(sc
, ld
->cl_lstatus
->drive_failure_map
[i
]);
3189 ciss_printf(sc
, "physical drive %d:%d (%x) failed\n", bus
, target
,
3190 ld
->cl_lstatus
->drive_failure_map
[i
]);
3195 /************************************************************************
3196 * Print information about the controller/driver.
3199 ciss_print_adapter(struct ciss_softc
*sc
)
3203 ciss_printf(sc
, "ADAPTER:\n");
3204 for (i
= 0; i
< CISSQ_COUNT
; i
++) {
3205 ciss_printf(sc
, "%s %d/%d\n",
3207 i
== 1 ? "busy" : "complete",
3208 sc
->ciss_qstat
[i
].q_length
,
3209 sc
->ciss_qstat
[i
].q_max
);
3211 ciss_printf(sc
, "max_requests %d\n", sc
->ciss_max_requests
);
3212 ciss_printf(sc
, "notify_head/tail %d/%d\n",
3213 sc
->ciss_notify_head
, sc
->ciss_notify_tail
);
3214 ciss_printf(sc
, "flags %b\n", sc
->ciss_flags
,
3215 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
3217 for (i
= 0; i
< CISS_MAX_LOGICAL
; i
++) {
3218 ciss_printf(sc
, "LOGICAL DRIVE %d: ", i
);
3219 ciss_print_ldrive(sc
, sc
->ciss_logical
+ i
);
3222 for (i
= 1; i
< sc
->ciss_max_requests
; i
++)
3223 ciss_print_request(sc
->ciss_request
+ i
);
3227 void ciss_print0(void);
3233 struct ciss_softc
*sc
;
3235 sc
= devclass_get_softc(devclass_find("ciss"), 0);
3237 kprintf("no ciss controllers\n");
3239 ciss_print_adapter(sc
);
3244 /************************************************************************
3245 * Return a name for a logical drive status value.
3248 ciss_name_ldrive_status(int status
)
3251 case CISS_LSTATUS_OK
:
3253 case CISS_LSTATUS_FAILED
:
3255 case CISS_LSTATUS_NOT_CONFIGURED
:
3256 return("not configured");
3257 case CISS_LSTATUS_INTERIM_RECOVERY
:
3258 return("interim recovery");
3259 case CISS_LSTATUS_READY_RECOVERY
:
3260 return("ready for recovery");
3261 case CISS_LSTATUS_RECOVERING
:
3262 return("recovering");
3263 case CISS_LSTATUS_WRONG_PDRIVE
:
3264 return("wrong physical drive inserted");
3265 case CISS_LSTATUS_MISSING_PDRIVE
:
3266 return("missing physical drive");
3267 case CISS_LSTATUS_EXPANDING
:
3268 return("expanding");
3269 case CISS_LSTATUS_BECOMING_READY
:
3270 return("becoming ready");
3271 case CISS_LSTATUS_QUEUED_FOR_EXPANSION
:
3272 return("queued for expansion");
3274 return("unknown status");
3277 /************************************************************************
3278 * Return an online/offline/nonexistent value for a logical drive
3282 ciss_decode_ldrive_status(int status
)
3285 case CISS_LSTATUS_NOT_CONFIGURED
:
3286 return(CISS_LD_NONEXISTENT
);
3288 case CISS_LSTATUS_OK
:
3289 case CISS_LSTATUS_INTERIM_RECOVERY
:
3290 case CISS_LSTATUS_READY_RECOVERY
:
3291 case CISS_LSTATUS_RECOVERING
:
3292 case CISS_LSTATUS_EXPANDING
:
3293 case CISS_LSTATUS_QUEUED_FOR_EXPANSION
:
3294 return(CISS_LD_ONLINE
);
3296 case CISS_LSTATUS_FAILED
:
3297 case CISS_LSTATUS_WRONG_PDRIVE
:
3298 case CISS_LSTATUS_MISSING_PDRIVE
:
3299 case CISS_LSTATUS_BECOMING_READY
:
3301 return(CISS_LD_OFFLINE
);
3306 /************************************************************************
3307 * Return a name for a logical drive's organisation.
3310 ciss_name_ldrive_org(int org
)
3313 case CISS_LDRIVE_RAID0
:
3315 case CISS_LDRIVE_RAID1
:
3317 case CISS_LDRIVE_RAID4
:
3319 case CISS_LDRIVE_RAID5
:
3325 /************************************************************************
3326 * Return a name for a command status value.
3329 ciss_name_command_status(int status
)
3332 case CISS_CMD_STATUS_SUCCESS
:
3334 case CISS_CMD_STATUS_TARGET_STATUS
:
3335 return("target status");
3336 case CISS_CMD_STATUS_DATA_UNDERRUN
:
3337 return("data underrun");
3338 case CISS_CMD_STATUS_DATA_OVERRUN
:
3339 return("data overrun");
3340 case CISS_CMD_STATUS_INVALID_COMMAND
:
3341 return("invalid command");
3342 case CISS_CMD_STATUS_PROTOCOL_ERROR
:
3343 return("protocol error");
3344 case CISS_CMD_STATUS_HARDWARE_ERROR
:
3345 return("hardware error");
3346 case CISS_CMD_STATUS_CONNECTION_LOST
:
3347 return("connection lost");
3348 case CISS_CMD_STATUS_ABORTED
:
3350 case CISS_CMD_STATUS_ABORT_FAILED
:
3351 return("abort failed");
3352 case CISS_CMD_STATUS_UNSOLICITED_ABORT
:
3353 return("unsolicited abort");
3354 case CISS_CMD_STATUS_TIMEOUT
:
3356 case CISS_CMD_STATUS_UNABORTABLE
:
3357 return("unabortable");
3359 return("unknown status");
3362 /************************************************************************
3363 * Handle an open on the control device.
3366 ciss_open(struct dev_open_args
*ap
)
3368 cdev_t dev
= ap
->a_head
.a_dev
;
3369 struct ciss_softc
*sc
;
3373 sc
= (struct ciss_softc
*)dev
->si_drv1
;
3375 /* we might want to veto if someone already has us open */
3377 sc
->ciss_flags
|= CISS_FLAG_CONTROL_OPEN
;
3381 /************************************************************************
3382 * Handle the last close on the control device.
3385 ciss_close(struct dev_close_args
*ap
)
3387 cdev_t dev
= ap
->a_head
.a_dev
;
3388 struct ciss_softc
*sc
;
3392 sc
= (struct ciss_softc
*)dev
->si_drv1
;
3394 sc
->ciss_flags
&= ~CISS_FLAG_CONTROL_OPEN
;
3398 /********************************************************************************
3399 * Handle adapter-specific control operations.
3401 * Note that the API here is compatible with the Linux driver, in order to
3402 * simplify the porting of Compaq's userland tools.
3405 ciss_ioctl(struct dev_ioctl_args
*ap
)
3407 cdev_t dev
= ap
->a_head
.a_dev
;
3408 struct ciss_softc
*sc
;
3413 sc
= (struct ciss_softc
*)dev
->si_drv1
;
3417 case CCISS_GETPCIINFO
:
3419 cciss_pci_info_struct
*pis
= (cciss_pci_info_struct
*)ap
->a_data
;
3421 pis
->bus
= pci_get_bus(sc
->ciss_dev
);
3422 pis
->dev_fn
= pci_get_slot(sc
->ciss_dev
);
3423 pis
->board_id
= pci_get_devid(sc
->ciss_dev
);
3428 case CCISS_GETINTINFO
:
3430 cciss_coalint_struct
*cis
= (cciss_coalint_struct
*)ap
->a_data
;
3432 cis
->delay
= sc
->ciss_cfg
->interrupt_coalesce_delay
;
3433 cis
->count
= sc
->ciss_cfg
->interrupt_coalesce_count
;
3438 case CCISS_SETINTINFO
:
3440 cciss_coalint_struct
*cis
= (cciss_coalint_struct
*)ap
->a_data
;
3442 if ((cis
->delay
== 0) && (cis
->count
== 0)) {
3448 * XXX apparently this is only safe if the controller is idle,
3449 * we should suspend it before doing this.
3451 sc
->ciss_cfg
->interrupt_coalesce_delay
= cis
->delay
;
3452 sc
->ciss_cfg
->interrupt_coalesce_count
= cis
->count
;
3454 if (ciss_update_config(sc
))
3457 /* XXX resume the controller here */
3461 case CCISS_GETNODENAME
:
3462 bcopy(sc
->ciss_cfg
->server_name
, (NodeName_type
*)ap
->a_data
,
3463 sizeof(NodeName_type
));
3466 case CCISS_SETNODENAME
:
3467 bcopy((NodeName_type
*)ap
->a_data
, sc
->ciss_cfg
->server_name
,
3468 sizeof(NodeName_type
));
3469 if (ciss_update_config(sc
))
3473 case CCISS_GETHEARTBEAT
:
3474 *(Heartbeat_type
*)ap
->a_data
= sc
->ciss_cfg
->heartbeat
;
3477 case CCISS_GETBUSTYPES
:
3478 *(BusTypes_type
*)ap
->a_data
= sc
->ciss_cfg
->bus_types
;
3481 case CCISS_GETFIRMVER
:
3482 bcopy(sc
->ciss_id
->running_firmware_revision
, (FirmwareVer_type
*)ap
->a_data
,
3483 sizeof(FirmwareVer_type
));
3486 case CCISS_GETDRIVERVER
:
3487 *(DriverVer_type
*)ap
->a_data
= CISS_DRIVER_VERSION
;
3490 case CCISS_REVALIDVOLS
:
3492 * This is a bit ugly; to do it "right" we really need
3493 * to find any disks that have changed, kick CAM off them,
3494 * then rescan only these disks. It'd be nice if they
3495 * a) told us which disk(s) they were going to play with,
3496 * and b) which ones had arrived. 8(
3500 case CCISS_PASSTHRU
:
3501 error
= ciss_user_command(sc
, (IOCTL_Command_struct
*)ap
->a_data
);
3505 debug(0, "unknown ioctl 0x%lx", ap
->a_cmd
);
3507 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO
);
3508 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO
);
3509 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO
);
3510 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME
);
3511 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME
);
3512 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT
);
3513 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES
);
3514 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER
);
3515 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER
);
3516 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS
);
3517 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU
);