28 */
29
30/*
31 * Common Interface for SCSI-3 Support driver.
32 *
33 * CISS claims to provide a common interface between a generic SCSI
34 * transport and an intelligent host adapter.
35 *
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.
43 *
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.
54 *
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.
61 *
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.
65 *
66 *
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
69 * driver happen.
70 *
71 * More thanks must go to John Cagle at HP for the countless hours
72 * spent making this driver "work" with the MSA* series storage
73 * enclosures. Without his help (and nagging), this driver could not
74 * be used with these enclosures.
75 */
76
77#include <sys/param.h>
78#include <sys/systm.h>
79#include <sys/malloc.h>
80#include <sys/kernel.h>
81#include <sys/bus.h>
82#include <sys/conf.h>
83#include <sys/stat.h>
84#include <sys/kthread.h>
85#include <sys/queue.h>
86#include <sys/sysctl.h>
87
88#include <cam/cam.h>
89#include <cam/cam_ccb.h>
90#include <cam/cam_periph.h>
91#include <cam/cam_sim.h>
92#include <cam/cam_xpt_sim.h>
93#include <cam/scsi/scsi_all.h>
94#include <cam/scsi/scsi_message.h>
95
96#include <machine/bus.h>
97#include <machine/endian.h>
98#include <machine/resource.h>
99#include <sys/rman.h>
100
101#include <dev/pci/pcireg.h>
102#include <dev/pci/pcivar.h>
103
104#include <dev/ciss/cissreg.h>
105#include <dev/ciss/cissio.h>
106#include <dev/ciss/cissvar.h>
107
108static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
109 "ciss internal data buffers");
110
111/* pci interface */
112static int ciss_lookup(device_t dev);
113static int ciss_probe(device_t dev);
114static int ciss_attach(device_t dev);
115static int ciss_detach(device_t dev);
116static int ciss_shutdown(device_t dev);
117
118/* (de)initialisation functions, control wrappers */
119static int ciss_init_pci(struct ciss_softc *sc);
120static int ciss_setup_msix(struct ciss_softc *sc);
121static int ciss_init_perf(struct ciss_softc *sc);
122static int ciss_wait_adapter(struct ciss_softc *sc);
123static int ciss_flush_adapter(struct ciss_softc *sc);
124static int ciss_init_requests(struct ciss_softc *sc);
125static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
126 int nseg, int error);
127static int ciss_identify_adapter(struct ciss_softc *sc);
128static int ciss_init_logical(struct ciss_softc *sc);
129static int ciss_init_physical(struct ciss_softc *sc);
130static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
131static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
132static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
133static int ciss_update_config(struct ciss_softc *sc);
134static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
135static void ciss_init_sysctl(struct ciss_softc *sc);
136static void ciss_soft_reset(struct ciss_softc *sc);
137static void ciss_free(struct ciss_softc *sc);
138static void ciss_spawn_notify_thread(struct ciss_softc *sc);
139static void ciss_kill_notify_thread(struct ciss_softc *sc);
140
141/* request submission/completion */
142static int ciss_start(struct ciss_request *cr);
143static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
144static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
145static void ciss_intr(void *arg);
146static void ciss_perf_intr(void *arg);
147static void ciss_perf_msi_intr(void *arg);
148static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
149static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
150static int ciss_synch_request(struct ciss_request *cr, int timeout);
151static int ciss_poll_request(struct ciss_request *cr, int timeout);
152static int ciss_wait_request(struct ciss_request *cr, int timeout);
153#if 0
154static int ciss_abort_request(struct ciss_request *cr);
155#endif
156
157/* request queueing */
158static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
159static void ciss_preen_command(struct ciss_request *cr);
160static void ciss_release_request(struct ciss_request *cr);
161
162/* request helpers */
163static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
164 int opcode, void **bufp, size_t bufsize);
165static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
166
167/* DMA map/unmap */
168static int ciss_map_request(struct ciss_request *cr);
169static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
170 int nseg, int error);
171static void ciss_unmap_request(struct ciss_request *cr);
172
173/* CAM interface */
174static int ciss_cam_init(struct ciss_softc *sc);
175static void ciss_cam_rescan_target(struct ciss_softc *sc,
176 int bus, int target);
177static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
178static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
179static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
180static void ciss_cam_poll(struct cam_sim *sim);
181static void ciss_cam_complete(struct ciss_request *cr);
182static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
183static struct cam_periph *ciss_find_periph(struct ciss_softc *sc,
184 int bus, int target);
185static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
186
187/* periodic status monitoring */
188static void ciss_periodic(void *arg);
189static void ciss_nop_complete(struct ciss_request *cr);
190static void ciss_disable_adapter(struct ciss_softc *sc);
191static void ciss_notify_event(struct ciss_softc *sc);
192static void ciss_notify_complete(struct ciss_request *cr);
193static int ciss_notify_abort(struct ciss_softc *sc);
194static int ciss_notify_abort_bmic(struct ciss_softc *sc);
195static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
196static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
197static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
198
199/* debugging output */
200static void ciss_print_request(struct ciss_request *cr);
201static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
202static const char *ciss_name_ldrive_status(int status);
203static int ciss_decode_ldrive_status(int status);
204static const char *ciss_name_ldrive_org(int org);
205static const char *ciss_name_command_status(int status);
206
207/*
208 * PCI bus interface.
209 */
210static device_method_t ciss_methods[] = {
211 /* Device interface */
212 DEVMETHOD(device_probe, ciss_probe),
213 DEVMETHOD(device_attach, ciss_attach),
214 DEVMETHOD(device_detach, ciss_detach),
215 DEVMETHOD(device_shutdown, ciss_shutdown),
216 { 0, 0 }
217};
218
219static driver_t ciss_pci_driver = {
220 "ciss",
221 ciss_methods,
222 sizeof(struct ciss_softc)
223};
224
225static devclass_t ciss_devclass;
226DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
227MODULE_DEPEND(ciss, cam, 1, 1, 1);
228MODULE_DEPEND(ciss, pci, 1, 1, 1);
229
230/*
231 * Control device interface.
232 */
233static d_open_t ciss_open;
234static d_close_t ciss_close;
235static d_ioctl_t ciss_ioctl;
236
237static struct cdevsw ciss_cdevsw = {
238 .d_version = D_VERSION,
239 .d_flags = 0,
240 .d_open = ciss_open,
241 .d_close = ciss_close,
242 .d_ioctl = ciss_ioctl,
243 .d_name = "ciss",
244};
245
246/*
247 * This tunable can be set at boot time and controls whether physical devices
248 * that are marked hidden by the firmware should be exposed anyways.
249 */
250static unsigned int ciss_expose_hidden_physical = 0;
251TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
252
253static unsigned int ciss_nop_message_heartbeat = 0;
254TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
255
256/*
257 * This tunable can force a particular transport to be used:
258 * <= 0 : use default
259 * 1 : force simple
260 * 2 : force performant
261 */
262static int ciss_force_transport = 0;
263TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
264
265/*
266 * This tunable can force a particular interrupt delivery method to be used:
267 * <= 0 : use default
268 * 1 : force INTx
269 * 2 : force MSIX
270 */
271static int ciss_force_interrupt = 0;
272TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
273
274/************************************************************************
275 * CISS adapters amazingly don't have a defined programming interface
276 * value. (One could say some very despairing things about PCI and
277 * people just not getting the general idea.) So we are forced to
278 * stick with matching against subvendor/subdevice, and thus have to
279 * be updated for every new CISS adapter that appears.
280 */
281#define CISS_BOARD_UNKNWON 0
282#define CISS_BOARD_SA5 1
283#define CISS_BOARD_SA5B 2
284#define CISS_BOARD_NOMSI (1<<4)
285#define CISS_BOARD_SIMPLE (1<<5)
286
287static struct
288{
289 u_int16_t subvendor;
290 u_int16_t subdevice;
291 int flags;
292 char *desc;
293} ciss_vendor_data[] = {
294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
295 "Compaq Smart Array 5300" },
296 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
297 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
298 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
299 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
300 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
301 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
302 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
303 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
304 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
305 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
306 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
308 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
309 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
310 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
311 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
312 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
313 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
314 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
317 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
318 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
319 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
320 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
321 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
325 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
326 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
327 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
328 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
329 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
330 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
331 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
332 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
333 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
334 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
335 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
336 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
337 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
338 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
339 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
340 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
341 { 0, 0, 0, NULL }
342};
343
344/************************************************************************
345 * Find a match for the device in our list of known adapters.
346 */
347static int
348ciss_lookup(device_t dev)
349{
350 int i;
351
352 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
353 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
354 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
355 return(i);
356 }
357 return(-1);
358}
359
360/************************************************************************
361 * Match a known CISS adapter.
362 */
363static int
364ciss_probe(device_t dev)
365{
366 int i;
367
368 i = ciss_lookup(dev);
369 if (i != -1) {
370 device_set_desc(dev, ciss_vendor_data[i].desc);
371 return(BUS_PROBE_DEFAULT);
372 }
373 return(ENOENT);
374}
375
376/************************************************************************
377 * Attach the driver to this adapter.
378 */
379static int
380ciss_attach(device_t dev)
381{
382 struct ciss_softc *sc;
383 int error;
384
385 debug_called(1);
386
387#ifdef CISS_DEBUG
388 /* print structure/union sizes */
389 debug_struct(ciss_command);
390 debug_struct(ciss_header);
391 debug_union(ciss_device_address);
392 debug_struct(ciss_cdb);
393 debug_struct(ciss_report_cdb);
394 debug_struct(ciss_notify_cdb);
395 debug_struct(ciss_notify);
396 debug_struct(ciss_message_cdb);
397 debug_struct(ciss_error_info_pointer);
398 debug_struct(ciss_error_info);
399 debug_struct(ciss_sg_entry);
400 debug_struct(ciss_config_table);
401 debug_struct(ciss_bmic_cdb);
402 debug_struct(ciss_bmic_id_ldrive);
403 debug_struct(ciss_bmic_id_lstatus);
404 debug_struct(ciss_bmic_id_table);
405 debug_struct(ciss_bmic_id_pdrive);
406 debug_struct(ciss_bmic_blink_pdrive);
407 debug_struct(ciss_bmic_flush_cache);
408 debug_const(CISS_MAX_REQUESTS);
409 debug_const(CISS_MAX_LOGICAL);
410 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
411 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
412 debug_const(CISS_COMMAND_ALLOC_SIZE);
413 debug_const(CISS_COMMAND_SG_LENGTH);
414
415 debug_type(cciss_pci_info_struct);
416 debug_type(cciss_coalint_struct);
417 debug_type(cciss_coalint_struct);
418 debug_type(NodeName_type);
419 debug_type(NodeName_type);
420 debug_type(Heartbeat_type);
421 debug_type(BusTypes_type);
422 debug_type(FirmwareVer_type);
423 debug_type(DriverVer_type);
424 debug_type(IOCTL_Command_struct);
425#endif
426
427 sc = device_get_softc(dev);
428 sc->ciss_dev = dev;
429 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
430 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
431
432 /*
433 * Do PCI-specific init.
434 */
435 if ((error = ciss_init_pci(sc)) != 0)
436 goto out;
437
438 /*
439 * Initialise driver queues.
440 */
441 ciss_initq_free(sc);
442 ciss_initq_notify(sc);
443
444 /*
445 * Initalize device sysctls.
446 */
447 ciss_init_sysctl(sc);
448
449 /*
450 * Initialise command/request pool.
451 */
452 if ((error = ciss_init_requests(sc)) != 0)
453 goto out;
454
455 /*
456 * Get adapter information.
457 */
458 if ((error = ciss_identify_adapter(sc)) != 0)
459 goto out;
460
461 /*
462 * Find all the physical devices.
463 */
464 if ((error = ciss_init_physical(sc)) != 0)
465 goto out;
466
467 /*
468 * Build our private table of logical devices.
469 */
470 if ((error = ciss_init_logical(sc)) != 0)
471 goto out;
472
473 /*
474 * Enable interrupts so that the CAM scan can complete.
475 */
476 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
477
478 /*
479 * Initialise the CAM interface.
480 */
481 if ((error = ciss_cam_init(sc)) != 0)
482 goto out;
483
484 /*
485 * Start the heartbeat routine and event chain.
486 */
487 ciss_periodic(sc);
488
489 /*
490 * Create the control device.
491 */
492 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
493 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
494 "ciss%d", device_get_unit(sc->ciss_dev));
495 sc->ciss_dev_t->si_drv1 = sc;
496
497 /*
498 * The adapter is running; synchronous commands can now sleep
499 * waiting for an interrupt to signal completion.
500 */
501 sc->ciss_flags |= CISS_FLAG_RUNNING;
502
503 ciss_spawn_notify_thread(sc);
504
505 error = 0;
506 out:
507 if (error != 0) {
508 /* ciss_free() expects the mutex to be held */
509 mtx_lock(&sc->ciss_mtx);
510 ciss_free(sc);
511 }
512 return(error);
513}
514
515/************************************************************************
516 * Detach the driver from this adapter.
517 */
518static int
519ciss_detach(device_t dev)
520{
521 struct ciss_softc *sc = device_get_softc(dev);
522
523 debug_called(1);
524
525 mtx_lock(&sc->ciss_mtx);
526 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
527 mtx_unlock(&sc->ciss_mtx);
528 return (EBUSY);
529 }
530
531 /* flush adapter cache */
532 ciss_flush_adapter(sc);
533
534 /* release all resources. The mutex is released and freed here too. */
535 ciss_free(sc);
536
537 return(0);
538}
539
540/************************************************************************
541 * Prepare adapter for system shutdown.
542 */
543static int
544ciss_shutdown(device_t dev)
545{
546 struct ciss_softc *sc = device_get_softc(dev);
547
548 debug_called(1);
549
550 mtx_lock(&sc->ciss_mtx);
551 /* flush adapter cache */
552 ciss_flush_adapter(sc);
553
554 if (sc->ciss_soft_reset)
555 ciss_soft_reset(sc);
556 mtx_unlock(&sc->ciss_mtx);
557
558 return(0);
559}
560
561static void
562ciss_init_sysctl(struct ciss_softc *sc)
563{
564
565 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
566 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
567 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
568}
569
570/************************************************************************
571 * Perform PCI-specific attachment actions.
572 */
573static int
574ciss_init_pci(struct ciss_softc *sc)
575{
576 uintptr_t cbase, csize, cofs;
577 uint32_t method, supported_methods;
578 int error, sqmask, i;
579 void *intr;
580
581 debug_called(1);
582
583 /*
584 * Work out adapter type.
585 */
586 i = ciss_lookup(sc->ciss_dev);
587 if (i < 0) {
588 ciss_printf(sc, "unknown adapter type\n");
589 return (ENXIO);
590 }
591
592 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
593 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
594 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
595 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
596 } else {
597 /*
598 * XXX Big hammer, masks/unmasks all possible interrupts. This should
599 * work on all hardware variants. Need to add code to handle the
600 * "controller crashed" interupt bit that this unmasks.
601 */
602 sqmask = ~0;
603 }
604
605 /*
606 * Allocate register window first (we need this to find the config
607 * struct).
608 */
609 error = ENXIO;
610 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
611 if ((sc->ciss_regs_resource =
612 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
613 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
614 ciss_printf(sc, "can't allocate register window\n");
615 return(ENXIO);
616 }
617 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
618 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
619
620 /*
621 * Find the BAR holding the config structure. If it's not the one
622 * we already mapped for registers, map it too.
623 */
624 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
625 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
626 if ((sc->ciss_cfg_resource =
627 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
628 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
629 ciss_printf(sc, "can't allocate config window\n");
630 return(ENXIO);
631 }
632 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
633 csize = rman_get_end(sc->ciss_cfg_resource) -
634 rman_get_start(sc->ciss_cfg_resource) + 1;
635 } else {
636 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
637 csize = rman_get_end(sc->ciss_regs_resource) -
638 rman_get_start(sc->ciss_regs_resource) + 1;
639 }
640 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
641
642 /*
643 * Use the base/size/offset values we just calculated to
644 * sanity-check the config structure. If it's OK, point to it.
645 */
646 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
647 ciss_printf(sc, "config table outside window\n");
648 return(ENXIO);
649 }
650 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
651 debug(1, "config struct at %p", sc->ciss_cfg);
652
653 /*
654 * Calculate the number of request structures/commands we are
655 * going to provide for this adapter.
656 */
657 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
658
659 /*
660 * Validate the config structure. If we supported other transport
661 * methods, we could select amongst them at this point in time.
662 */
663 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
664 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
665 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
666 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
667 return(ENXIO);
668 }
669
670 /*
671 * Select the mode of operation, prefer Performant.
672 */
673 if (!(sc->ciss_cfg->supported_methods &
674 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
675 ciss_printf(sc, "No supported transport layers: 0x%x\n",
676 sc->ciss_cfg->supported_methods);
677 }
678
679 switch (ciss_force_transport) {
680 case 1:
681 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
682 break;
683 case 2:
684 supported_methods = CISS_TRANSPORT_METHOD_PERF;
685 break;
686 default:
687 /*
688 * Override the capabilities of the BOARD and specify SIMPLE
689 * MODE
690 */
691 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
692 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
693 else
694 supported_methods = sc->ciss_cfg->supported_methods;
695 break;
696 }
697
698setup:
699 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
700 method = CISS_TRANSPORT_METHOD_PERF;
701 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
702 sc->ciss_cfg->transport_offset);
703 if (ciss_init_perf(sc)) {
704 supported_methods &= ~method;
705 goto setup;
706 }
707 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
708 method = CISS_TRANSPORT_METHOD_SIMPLE;
709 } else {
710 ciss_printf(sc, "No supported transport methods: 0x%x\n",
711 sc->ciss_cfg->supported_methods);
712 return(ENXIO);
713 }
714
715 /*
716 * Tell it we're using the low 4GB of RAM. Set the default interrupt
717 * coalescing options.
718 */
719 sc->ciss_cfg->requested_method = method;
720 sc->ciss_cfg->command_physlimit = 0;
721 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
722 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
723
724#ifdef __i386__
725 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
726#endif
727
728 if (ciss_update_config(sc)) {
729 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
730 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
731 return(ENXIO);
732 }
733 if ((sc->ciss_cfg->active_method & method) == 0) {
734 supported_methods &= ~method;
735 if (supported_methods == 0) {
736 ciss_printf(sc, "adapter refuses to go into available transports "
737 "mode (0x%x, 0x%x)\n", supported_methods,
738 sc->ciss_cfg->active_method);
739 return(ENXIO);
740 } else
741 goto setup;
742 }
743
744 /*
745 * Wait for the adapter to come ready.
746 */
747 if ((error = ciss_wait_adapter(sc)) != 0)
748 return(error);
749
750 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
751 * interrupts have a rid of 0, this will be overridden if MSIX is used.
752 */
753 sc->ciss_irq_rid[0] = 0;
754 if (method == CISS_TRANSPORT_METHOD_PERF) {
755 ciss_printf(sc, "PERFORMANT Transport\n");
756 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
757 intr = ciss_perf_msi_intr;
758 } else {
759 intr = ciss_perf_intr;
760 }
761 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
762 * Unfortunately, there is no good way to know if this is a SAS
763 * controller. Hopefully enabling this bit universally will work OK.
764 * It seems to work fine for SA6i controllers.
765 */
766 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
767
768 } else {
769 ciss_printf(sc, "SIMPLE Transport\n");
770 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
771 if (ciss_force_interrupt == 2)
772 /* If this fails, we automatically revert to INTx */
773 ciss_setup_msix(sc);
774 sc->ciss_perf = NULL;
775 intr = ciss_intr;
776 sc->ciss_interrupt_mask = sqmask;
777 }
778
779 /*
780 * Turn off interrupts before we go routing anything.
781 */
782 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
783
784 /*
785 * Allocate and set up our interrupt.
786 */
787 if ((sc->ciss_irq_resource =
788 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
789 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
790 ciss_printf(sc, "can't allocate interrupt\n");
791 return(ENXIO);
792 }
793
794 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
795 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
796 &sc->ciss_intr)) {
797 ciss_printf(sc, "can't set up interrupt\n");
798 return(ENXIO);
799 }
800
801 /*
802 * Allocate the parent bus DMA tag appropriate for our PCI
803 * interface.
804 *
805 * Note that "simple" adapters can only address within a 32-bit
806 * span.
807 */
808 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
809 1, 0, /* alignment, boundary */
810 BUS_SPACE_MAXADDR, /* lowaddr */
811 BUS_SPACE_MAXADDR, /* highaddr */
812 NULL, NULL, /* filter, filterarg */
813 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
814 CISS_MAX_SG_ELEMENTS, /* nsegments */
815 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
816 0, /* flags */
817 NULL, NULL, /* lockfunc, lockarg */
818 &sc->ciss_parent_dmat)) {
819 ciss_printf(sc, "can't allocate parent DMA tag\n");
820 return(ENOMEM);
821 }
822
823 /*
824 * Create DMA tag for mapping buffers into adapter-addressable
825 * space.
826 */
827 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
828 1, 0, /* alignment, boundary */
829 BUS_SPACE_MAXADDR, /* lowaddr */
830 BUS_SPACE_MAXADDR, /* highaddr */
831 NULL, NULL, /* filter, filterarg */
832 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */
833 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
834 BUS_DMA_ALLOCNOW, /* flags */
835 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
836 &sc->ciss_buffer_dmat)) {
837 ciss_printf(sc, "can't allocate buffer DMA tag\n");
838 return(ENOMEM);
839 }
840 return(0);
841}
842
843/************************************************************************
844 * Setup MSI/MSIX operation (Performant only)
845 * Four interrupts are available, but we only use 1 right now. If MSI-X
846 * isn't avaialble, try using MSI instead.
847 */
848static int
849ciss_setup_msix(struct ciss_softc *sc)
850{
851 int val, i;
852
853 /* Weed out devices that don't actually support MSI */
854 i = ciss_lookup(sc->ciss_dev);
855 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
856 return (EINVAL);
857
858 /*
859 * Only need to use the minimum number of MSI vectors, as the driver
860 * doesn't support directed MSIX interrupts.
861 */
862 val = pci_msix_count(sc->ciss_dev);
863 if (val < CISS_MSI_COUNT) {
864 val = pci_msi_count(sc->ciss_dev);
865 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
866 if (val < CISS_MSI_COUNT)
867 return (EINVAL);
868 }
869 val = MIN(val, CISS_MSI_COUNT);
870 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
871 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
872 return (EINVAL);
873 }
874
875 sc->ciss_msi = val;
876 if (bootverbose)
877 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
878 (val != 1) ? "s" : "");
879
880 for (i = 0; i < val; i++)
881 sc->ciss_irq_rid[i] = i + 1;
882
883 return (0);
884
885}
886
887/************************************************************************
888 * Setup the Performant structures.
889 */
890static int
891ciss_init_perf(struct ciss_softc *sc)
892{
893 struct ciss_perf_config *pc = sc->ciss_perf;
894 int reply_size;
895
896 /*
897 * Create the DMA tag for the reply queue.
898 */
899 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
900 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
901 1, 0, /* alignment, boundary */
902 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
903 BUS_SPACE_MAXADDR, /* highaddr */
904 NULL, NULL, /* filter, filterarg */
905 reply_size, 1, /* maxsize, nsegments */
906 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
907 0, /* flags */
908 NULL, NULL, /* lockfunc, lockarg */
909 &sc->ciss_reply_dmat)) {
910 ciss_printf(sc, "can't allocate reply DMA tag\n");
911 return(ENOMEM);
912 }
913 /*
914 * Allocate memory and make it available for DMA.
915 */
916 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
917 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
918 ciss_printf(sc, "can't allocate reply memory\n");
919 return(ENOMEM);
920 }
921 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
922 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
923 bzero(sc->ciss_reply, reply_size);
924
925 sc->ciss_cycle = 0x1;
926 sc->ciss_rqidx = 0;
927
928 /*
929 * Preload the fetch table with common command sizes. This allows the
930 * hardware to not waste bus cycles for typical i/o commands, but also not
931 * tax the driver to be too exact in choosing sizes. The table is optimized
932 * for page-aligned i/o's, but since most i/o comes from the various pagers,
933 * it's a reasonable assumption to make.
934 */
935 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
936 pc->fetch_count[CISS_SG_FETCH_1] =
937 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
938 pc->fetch_count[CISS_SG_FETCH_2] =
939 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
940 pc->fetch_count[CISS_SG_FETCH_4] =
941 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
942 pc->fetch_count[CISS_SG_FETCH_8] =
943 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
944 pc->fetch_count[CISS_SG_FETCH_16] =
945 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
946 pc->fetch_count[CISS_SG_FETCH_32] =
947 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
948 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
949
950 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
951 pc->rq_count = 1; /* XXX Hardcode for a single queue */
952 pc->rq_bank_hi = 0;
953 pc->rq_bank_lo = 0;
954 pc->rq[0].rq_addr_hi = 0x0;
955 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
956
957 return(0);
958}
959
960/************************************************************************
961 * Wait for the adapter to come ready.
962 */
963static int
964ciss_wait_adapter(struct ciss_softc *sc)
965{
966 int i;
967
968 debug_called(1);
969
970 /*
971 * Wait for the adapter to come ready.
972 */
973 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
974 ciss_printf(sc, "waiting for adapter to come ready...\n");
975 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
976 DELAY(1000000); /* one second */
977 if (i > 30) {
978 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
979 return(EIO);
980 }
981 }
982 }
983 return(0);
984}
985
986/************************************************************************
987 * Flush the adapter cache.
988 */
989static int
990ciss_flush_adapter(struct ciss_softc *sc)
991{
992 struct ciss_request *cr;
993 struct ciss_bmic_flush_cache *cbfc;
994 int error, command_status;
995
996 debug_called(1);
997
998 cr = NULL;
999 cbfc = NULL;
1000
1001 /*
1002 * Build a BMIC request to flush the cache. We don't disable
1003 * it, as we may be going to do more I/O (eg. we are emulating
1004 * the Synchronise Cache command).
1005 */
1006 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1007 error = ENOMEM;
1008 goto out;
1009 }
1010 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1011 (void **)&cbfc, sizeof(*cbfc))) != 0)
1012 goto out;
1013
1014 /*
1015 * Submit the request and wait for it to complete.
1016 */
1017 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1018 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1019 goto out;
1020 }
1021
1022 /*
1023 * Check response.
1024 */
1025 ciss_report_request(cr, &command_status, NULL);
1026 switch(command_status) {
1027 case CISS_CMD_STATUS_SUCCESS:
1028 break;
1029 default:
1030 ciss_printf(sc, "error flushing cache (%s)\n",
1031 ciss_name_command_status(command_status));
1032 error = EIO;
1033 goto out;
1034 }
1035
1036out:
1037 if (cbfc != NULL)
1038 free(cbfc, CISS_MALLOC_CLASS);
1039 if (cr != NULL)
1040 ciss_release_request(cr);
1041 return(error);
1042}
1043
1044static void
1045ciss_soft_reset(struct ciss_softc *sc)
1046{
1047 struct ciss_request *cr = NULL;
1048 struct ciss_command *cc;
1049 int i, error = 0;
1050
1051 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1052 /* only reset proxy controllers */
1053 if (sc->ciss_controllers[i].physical.bus == 0)
1054 continue;
1055
1056 if ((error = ciss_get_request(sc, &cr)) != 0)
1057 break;
1058
1059 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1060 NULL, 0)) != 0)
1061 break;
1062
1063 cc = cr->cr_cc;
1064 cc->header.address = sc->ciss_controllers[i];
1065
1066 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1067 break;
1068
1069 ciss_release_request(cr);
1070 }
1071
1072 if (error)
1073 ciss_printf(sc, "error resetting controller (%d)\n", error);
1074
1075 if (cr != NULL)
1076 ciss_release_request(cr);
1077}
1078
1079/************************************************************************
1080 * Allocate memory for the adapter command structures, initialise
1081 * the request structures.
1082 *
1083 * Note that the entire set of commands are allocated in a single
1084 * contiguous slab.
1085 */
1086static int
1087ciss_init_requests(struct ciss_softc *sc)
1088{
1089 struct ciss_request *cr;
1090 int i;
1091
1092 debug_called(1);
1093
1094 if (bootverbose)
1095 ciss_printf(sc, "using %d of %d available commands\n",
1096 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1097
1098 /*
1099 * Create the DMA tag for commands.
1100 */
1101 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1102 32, 0, /* alignment, boundary */
1103 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1104 BUS_SPACE_MAXADDR, /* highaddr */
1105 NULL, NULL, /* filter, filterarg */
1106 CISS_COMMAND_ALLOC_SIZE *
1107 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1108 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1109 0, /* flags */
1110 NULL, NULL, /* lockfunc, lockarg */
1111 &sc->ciss_command_dmat)) {
1112 ciss_printf(sc, "can't allocate command DMA tag\n");
1113 return(ENOMEM);
1114 }
1115 /*
1116 * Allocate memory and make it available for DMA.
1117 */
1118 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1119 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1120 ciss_printf(sc, "can't allocate command memory\n");
1121 return(ENOMEM);
1122 }
1123 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1124 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1125 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1126 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1127
1128 /*
1129 * Set up the request and command structures, push requests onto
1130 * the free queue.
1131 */
1132 for (i = 1; i < sc->ciss_max_requests; i++) {
1133 cr = &sc->ciss_request[i];
1134 cr->cr_sc = sc;
1135 cr->cr_tag = i;
1136 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1137 CISS_COMMAND_ALLOC_SIZE * i);
1138 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1139 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1140 ciss_enqueue_free(cr);
1141 }
1142 return(0);
1143}
1144
1145static void
1146ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1147{
1148 uint32_t *addr;
1149
1150 addr = arg;
1151 *addr = segs[0].ds_addr;
1152}
1153
1154/************************************************************************
1155 * Identify the adapter, print some information about it.
1156 */
1157static int
1158ciss_identify_adapter(struct ciss_softc *sc)
1159{
1160 struct ciss_request *cr;
1161 int error, command_status;
1162
1163 debug_called(1);
1164
1165 cr = NULL;
1166
1167 /*
1168 * Get a request, allocate storage for the adapter data.
1169 */
1170 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1171 (void **)&sc->ciss_id,
1172 sizeof(*sc->ciss_id))) != 0)
1173 goto out;
1174
1175 /*
1176 * Submit the request and wait for it to complete.
1177 */
1178 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1179 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1180 goto out;
1181 }
1182
1183 /*
1184 * Check response.
1185 */
1186 ciss_report_request(cr, &command_status, NULL);
1187 switch(command_status) {
1188 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1189 break;
1190 case CISS_CMD_STATUS_DATA_UNDERRUN:
1191 case CISS_CMD_STATUS_DATA_OVERRUN:
1192 ciss_printf(sc, "data over/underrun reading adapter information\n");
1193 default:
1194 ciss_printf(sc, "error reading adapter information (%s)\n",
1195 ciss_name_command_status(command_status));
1196 error = EIO;
1197 goto out;
1198 }
1199
1200 /* sanity-check reply */
1201 if (!sc->ciss_id->big_map_supported) {
1202 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1203 error = ENXIO;
1204 goto out;
1205 }
1206
1207#if 0
1208 /* XXX later revisions may not need this */
1209 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1210#endif
1211
1212 /* XXX only really required for old 5300 adapters? */
1213 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1214
1215 /*
1216 * Earlier controller specs do not contain these config
1217 * entries, so assume that a 0 means its old and assign
1218 * these values to the defaults that were established
1219 * when this driver was developed for them
1220 */
1221 if (sc->ciss_cfg->max_logical_supported == 0)
1222 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1223 if (sc->ciss_cfg->max_physical_supported == 0)
1224 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1225 /* print information */
1226 if (bootverbose) {
1227 ciss_printf(sc, " %d logical drive%s configured\n",
1228 sc->ciss_id->configured_logical_drives,
1229 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1230 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1231 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
1232
1233 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1234 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1235 ciss_printf(sc, " supported I/O methods 0x%b\n",
1236 sc->ciss_cfg->supported_methods,
1237 "\20\1READY\2simple\3performant\4MEMQ\n");
1238 ciss_printf(sc, " active I/O method 0x%b\n",
1239 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1240 ciss_printf(sc, " 4G page base 0x%08x\n",
1241 sc->ciss_cfg->command_physlimit);
1242 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1243 sc->ciss_cfg->interrupt_coalesce_delay);
1244 ciss_printf(sc, " interrupt coalesce count %d\n",
1245 sc->ciss_cfg->interrupt_coalesce_count);
1246 ciss_printf(sc, " max outstanding commands %d\n",
1247 sc->ciss_cfg->max_outstanding_commands);
1248 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1249 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1250 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1251 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1252 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1253 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1254 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1255 }
1256
1257out:
1258 if (error) {
1259 if (sc->ciss_id != NULL) {
1260 free(sc->ciss_id, CISS_MALLOC_CLASS);
1261 sc->ciss_id = NULL;
1262 }
1263 }
1264 if (cr != NULL)
1265 ciss_release_request(cr);
1266 return(error);
1267}
1268
1269/************************************************************************
1270 * Helper routine for generating a list of logical and physical luns.
1271 */
1272static struct ciss_lun_report *
1273ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1274{
1275 struct ciss_request *cr;
1276 struct ciss_command *cc;
1277 struct ciss_report_cdb *crc;
1278 struct ciss_lun_report *cll;
1279 int command_status;
1280 int report_size;
1281 int error = 0;
1282
1283 debug_called(1);
1284
1285 cr = NULL;
1286 cll = NULL;
1287
1288 /*
1289 * Get a request, allocate storage for the address list.
1290 */
1291 if ((error = ciss_get_request(sc, &cr)) != 0)
1292 goto out;
1293 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1294 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1295 ciss_printf(sc, "can't allocate memory for lun report\n");
1296 error = ENOMEM;
1297 goto out;
1298 }
1299
1300 /*
1301 * Build the Report Logical/Physical LUNs command.
1302 */
1303 cc = cr->cr_cc;
1304 cr->cr_data = cll;
1305 cr->cr_length = report_size;
1306 cr->cr_flags = CISS_REQ_DATAIN;
1307
1308 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1309 cc->header.address.physical.bus = 0;
1310 cc->header.address.physical.target = 0;
1311 cc->cdb.cdb_length = sizeof(*crc);
1312 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1313 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1314 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1315 cc->cdb.timeout = 30; /* XXX better suggestions? */
1316
1317 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1318 bzero(crc, sizeof(*crc));
1319 crc->opcode = opcode;
1320 crc->length = htonl(report_size); /* big-endian field */
1321 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1322
1323 /*
1324 * Submit the request and wait for it to complete. (timeout
1325 * here should be much greater than above)
1326 */
1327 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1328 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1329 goto out;
1330 }
1331
1332 /*
1333 * Check response. Note that data over/underrun is OK.
1334 */
1335 ciss_report_request(cr, &command_status, NULL);
1336 switch(command_status) {
1337 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1338 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1339 break;
1340 case CISS_CMD_STATUS_DATA_OVERRUN:
1341 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1342 sc->ciss_cfg->max_logical_supported);
1343 break;
1344 default:
1345 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1346 ciss_name_command_status(command_status));
1347 error = EIO;
1348 goto out;
1349 }
1350 ciss_release_request(cr);
1351 cr = NULL;
1352
1353out:
1354 if (cr != NULL)
1355 ciss_release_request(cr);
1356 if (error && cll != NULL) {
1357 free(cll, CISS_MALLOC_CLASS);
1358 cll = NULL;
1359 }
1360 return(cll);
1361}
1362
1363/************************************************************************
1364 * Find logical drives on the adapter.
1365 */
1366static int
1367ciss_init_logical(struct ciss_softc *sc)
1368{
1369 struct ciss_lun_report *cll;
1370 int error = 0, i, j;
1371 int ndrives;
1372
1373 debug_called(1);
1374
1375 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1376 sc->ciss_cfg->max_logical_supported);
1377 if (cll == NULL) {
1378 error = ENXIO;
1379 goto out;
1380 }
1381
1382 /* sanity-check reply */
1383 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1384 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1385 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1386 ndrives, sc->ciss_cfg->max_logical_supported);
1387 error = ENXIO;
1388 goto out;
1389 }
1390
1391 /*
1392 * Save logical drive information.
1393 */
1394 if (bootverbose) {
1395 ciss_printf(sc, "%d logical drive%s\n",
1396 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1397 }
1398
1399 sc->ciss_logical =
1400 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1401 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1402 if (sc->ciss_logical == NULL) {
1403 error = ENXIO;
1404 goto out;
1405 }
1406
1407 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
1408 sc->ciss_logical[i] =
1409 malloc(sc->ciss_cfg->max_logical_supported *
1410 sizeof(struct ciss_ldrive),
1411 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1412 if (sc->ciss_logical[i] == NULL) {
1413 error = ENXIO;
1414 goto out;
1415 }
1416
1417 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1418 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1419 }
1420
1421
1422 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1423 if (i < ndrives) {
1424 struct ciss_ldrive *ld;
1425 int bus, target;
1426
1427 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1428 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1429 ld = &sc->ciss_logical[bus][target];
1430
1431 ld->cl_address = cll->lun[i];
1432 ld->cl_controller = &sc->ciss_controllers[bus];
1433 if (ciss_identify_logical(sc, ld) != 0)
1434 continue;
1435 /*
1436 * If the drive has had media exchanged, we should bring it online.
1437 */
1438 if (ld->cl_lstatus->media_exchanged)
1439 ciss_accept_media(sc, ld);
1440
1441 }
1442 }
1443
1444 out:
1445 if (cll != NULL)
1446 free(cll, CISS_MALLOC_CLASS);
1447 return(error);
1448}
1449
1450static int
1451ciss_init_physical(struct ciss_softc *sc)
1452{
1453 struct ciss_lun_report *cll;
1454 int error = 0, i;
1455 int nphys;
1456 int bus, target;
1457
1458 debug_called(1);
1459
1460 bus = 0;
1461 target = 0;
1462
1463 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1464 sc->ciss_cfg->max_physical_supported);
1465 if (cll == NULL) {
1466 error = ENXIO;
1467 goto out;
1468 }
1469
1470 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1471
1472 if (bootverbose) {
1473 ciss_printf(sc, "%d physical device%s\n",
1474 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1475 }
1476
1477 /*
1478 * Figure out the bus mapping.
1479 * Logical buses include both the local logical bus for local arrays and
1480 * proxy buses for remote arrays. Physical buses are numbered by the
1481 * controller and represent physical buses that hold physical devices.
1482 * We shift these bus numbers so that everything fits into a single flat
1483 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1484 * numbers, and the physical bus numbers are shifted to be above that.
1485 * This results in the various driver arrays being indexed as follows:
1486 *
1487 * ciss_controllers[] - indexed by logical bus
1488 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1489 * being shifted by 32.
1490 * ciss_logical[][] - indexed by logical bus
1491 * ciss_physical[][] - indexed by physical bus
1492 *
1493 * XXX This is getting more and more hackish. CISS really doesn't play
1494 * well with a standard SCSI model; devices are addressed via magic
1495 * cookies, not via b/t/l addresses. Since there is no way to store
1496 * the cookie in the CAM device object, we have to keep these lookup
1497 * tables handy so that the devices can be found quickly at the cost
1498 * of wasting memory and having a convoluted lookup scheme. This
1499 * driver should probably be converted to block interface.
1500 */
1501 /*
1502 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1503 * controller. A proxy controller is another physical controller
1504 * behind the primary PCI controller. We need to know about this
1505 * so that BMIC commands can be properly targeted. There can be
1506 * proxy controllers attached to a single PCI controller, so
1507 * find the highest numbered one so the array can be properly
1508 * sized.
1509 */
1510 sc->ciss_max_logical_bus = 1;
1511 for (i = 0; i < nphys; i++) {
1512 if (cll->lun[i].physical.extra_address == 0) {
1513 bus = cll->lun[i].physical.bus;
1514 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1515 } else {
1516 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1517 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1518 }
1519 }
1520
1521 sc->ciss_controllers =
1522 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1523 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1524
1525 if (sc->ciss_controllers == NULL) {
1526 ciss_printf(sc, "Could not allocate memory for controller map\n");
1527 error = ENOMEM;
1528 goto out;
1529 }
1530
1531 /* setup a map of controller addresses */
1532 for (i = 0; i < nphys; i++) {
1533 if (cll->lun[i].physical.extra_address == 0) {
1534 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1535 }
1536 }
1537
1538 sc->ciss_physical =
1539 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1540 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1541 if (sc->ciss_physical == NULL) {
1542 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1543 error = ENOMEM;
1544 goto out;
1545 }
1546
1547 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1548 sc->ciss_physical[i] =
1549 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1550 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1551 if (sc->ciss_physical[i] == NULL) {
1552 ciss_printf(sc, "Could not allocate memory for target map\n");
1553 error = ENOMEM;
1554 goto out;
1555 }
1556 }
1557
1558 ciss_filter_physical(sc, cll);
1559
1560out:
1561 if (cll != NULL)
1562 free(cll, CISS_MALLOC_CLASS);
1563
1564 return(error);
1565}
1566
1567static int
1568ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1569{
1570 u_int32_t ea;
1571 int i, nphys;
1572 int bus, target;
1573
1574 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1575 for (i = 0; i < nphys; i++) {
1576 if (cll->lun[i].physical.extra_address == 0)
1577 continue;
1578
1579 /*
1580 * Filter out devices that we don't want. Level 3 LUNs could
1581 * probably be supported, but the docs don't give enough of a
1582 * hint to know how.
1583 *
1584 * The mode field of the physical address is likely set to have
1585 * hard disks masked out. Honor it unless the user has overridden
1586 * us with the tunable. We also munge the inquiry data for these
1587 * disks so that they only show up as passthrough devices. Keeping
1588 * them visible in this fashion is useful for doing things like
1589 * flashing firmware.
1590 */
1591 ea = cll->lun[i].physical.extra_address;
1592 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1593 (CISS_EXTRA_MODE2(ea) == 0x3))
1594 continue;
1595 if ((ciss_expose_hidden_physical == 0) &&
1596 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1597 continue;
1598
1599 /*
1600 * Note: CISS firmware numbers physical busses starting at '1', not
1601 * '0'. This numbering is internal to the firmware and is only
1602 * used as a hint here.
1603 */
1604 bus = CISS_EXTRA_BUS2(ea) - 1;
1605 target = CISS_EXTRA_TARGET2(ea);
1606 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1607 sc->ciss_physical[bus][target].cp_online = 1;
1608 }
1609
1610 return (0);
1611}
1612
1613static int
1614ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1615{
1616 struct ciss_request *cr;
1617 struct ciss_command *cc;
1618 struct scsi_inquiry *inq;
1619 int error;
1620 int command_status;
1621
1622 cr = NULL;
1623
1624 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1625
1626 if ((error = ciss_get_request(sc, &cr)) != 0)
1627 goto out;
1628
1629 cc = cr->cr_cc;
1630 cr->cr_data = &ld->cl_geometry;
1631 cr->cr_length = sizeof(ld->cl_geometry);
1632 cr->cr_flags = CISS_REQ_DATAIN;
1633
1634 cc->header.address = ld->cl_address;
1635 cc->cdb.cdb_length = 6;
1636 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1637 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1638 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1639 cc->cdb.timeout = 30;
1640
1641 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1642 inq->opcode = INQUIRY;
1643 inq->byte2 = SI_EVPD;
1644 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1645 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1646
1647 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1648 ciss_printf(sc, "error getting geometry (%d)\n", error);
1649 goto out;
1650 }
1651
1652 ciss_report_request(cr, &command_status, NULL);
1653 switch(command_status) {
1654 case CISS_CMD_STATUS_SUCCESS:
1655 case CISS_CMD_STATUS_DATA_UNDERRUN:
1656 break;
1657 case CISS_CMD_STATUS_DATA_OVERRUN:
1658 ciss_printf(sc, "WARNING: Data overrun\n");
1659 break;
1660 default:
1661 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1662 ciss_name_command_status(command_status));
1663 break;
1664 }
1665
1666out:
1667 if (cr != NULL)
1668 ciss_release_request(cr);
1669 return(error);
1670}
1671/************************************************************************
1672 * Identify a logical drive, initialise state related to it.
1673 */
1674static int
1675ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1676{
1677 struct ciss_request *cr;
1678 struct ciss_command *cc;
1679 struct ciss_bmic_cdb *cbc;
1680 int error, command_status;
1681
1682 debug_called(1);
1683
1684 cr = NULL;
1685
1686 /*
1687 * Build a BMIC request to fetch the drive ID.
1688 */
1689 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1690 (void **)&ld->cl_ldrive,
1691 sizeof(*ld->cl_ldrive))) != 0)
1692 goto out;
1693 cc = cr->cr_cc;
1694 cc->header.address = *ld->cl_controller; /* target controller */
1695 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1696 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1697
1698 /*
1699 * Submit the request and wait for it to complete.
1700 */
1701 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1702 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1703 goto out;
1704 }
1705
1706 /*
1707 * Check response.
1708 */
1709 ciss_report_request(cr, &command_status, NULL);
1710 switch(command_status) {
1711 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1712 break;
1713 case CISS_CMD_STATUS_DATA_UNDERRUN:
1714 case CISS_CMD_STATUS_DATA_OVERRUN:
1715 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1716 default:
1717 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1718 ciss_name_command_status(command_status));
1719 error = EIO;
1720 goto out;
1721 }
1722 ciss_release_request(cr);
1723 cr = NULL;
1724
1725 /*
1726 * Build a CISS BMIC command to get the logical drive status.
1727 */
1728 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1729 goto out;
1730
1731 /*
1732 * Get the logical drive geometry.
1733 */
1734 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1735 goto out;
1736
1737 /*
1738 * Print the drive's basic characteristics.
1739 */
1740 if (bootverbose) {
1741 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1742 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1743 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1744 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1745 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1746 ld->cl_ldrive->block_size));
1747
1748 ciss_print_ldrive(sc, ld);
1749 }
1750out:
1751 if (error != 0) {
1752 /* make the drive not-exist */
1753 ld->cl_status = CISS_LD_NONEXISTENT;
1754 if (ld->cl_ldrive != NULL) {
1755 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1756 ld->cl_ldrive = NULL;
1757 }
1758 if (ld->cl_lstatus != NULL) {
1759 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1760 ld->cl_lstatus = NULL;
1761 }
1762 }
1763 if (cr != NULL)
1764 ciss_release_request(cr);
1765
1766 return(error);
1767}
1768
1769/************************************************************************
1770 * Get status for a logical drive.
1771 *
1772 * XXX should we also do this in response to Test Unit Ready?
1773 */
1774static int
1775ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1776{
1777 struct ciss_request *cr;
1778 struct ciss_command *cc;
1779 struct ciss_bmic_cdb *cbc;
1780 int error, command_status;
1781
1782 /*
1783 * Build a CISS BMIC command to get the logical drive status.
1784 */
1785 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1786 (void **)&ld->cl_lstatus,
1787 sizeof(*ld->cl_lstatus))) != 0)
1788 goto out;
1789 cc = cr->cr_cc;
1790 cc->header.address = *ld->cl_controller; /* target controller */
1791 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1792 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1793
1794 /*
1795 * Submit the request and wait for it to complete.
1796 */
1797 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1798 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1799 goto out;
1800 }
1801
1802 /*
1803 * Check response.
1804 */
1805 ciss_report_request(cr, &command_status, NULL);
1806 switch(command_status) {
1807 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1808 break;
1809 case CISS_CMD_STATUS_DATA_UNDERRUN:
1810 case CISS_CMD_STATUS_DATA_OVERRUN:
1811 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1812 default:
1813 ciss_printf(sc, "error reading logical drive status (%s)\n",
1814 ciss_name_command_status(command_status));
1815 error = EIO;
1816 goto out;
1817 }
1818
1819 /*
1820 * Set the drive's summary status based on the returned status.
1821 *
1822 * XXX testing shows that a failed JBOD drive comes back at next
1823 * boot in "queued for expansion" mode. WTF?
1824 */
1825 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1826
1827out:
1828 if (cr != NULL)
1829 ciss_release_request(cr);
1830 return(error);
1831}
1832
1833/************************************************************************
1834 * Notify the adapter of a config update.
1835 */
1836static int
1837ciss_update_config(struct ciss_softc *sc)
1838{
1839 int i;
1840
1841 debug_called(1);
1842
1843 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1844 for (i = 0; i < 1000; i++) {
1845 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1846 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1847 return(0);
1848 }
1849 DELAY(1000);
1850 }
1851 return(1);
1852}
1853
1854/************************************************************************
1855 * Accept new media into a logical drive.
1856 *
1857 * XXX The drive has previously been offline; it would be good if we
1858 * could make sure it's not open right now.
1859 */
1860static int
1861ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1862{
1863 struct ciss_request *cr;
1864 struct ciss_command *cc;
1865 struct ciss_bmic_cdb *cbc;
1866 int command_status;
1867 int error = 0, ldrive;
1868
1869 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1870
1871 debug(0, "bringing logical drive %d back online", ldrive);
1872
1873 /*
1874 * Build a CISS BMIC command to bring the drive back online.
1875 */
1876 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1877 NULL, 0)) != 0)
1878 goto out;
1879 cc = cr->cr_cc;
1880 cc->header.address = *ld->cl_controller; /* target controller */
1881 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1882 cbc->log_drive = ldrive;
1883
1884 /*
1885 * Submit the request and wait for it to complete.
1886 */
1887 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1888 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1889 goto out;
1890 }
1891
1892 /*
1893 * Check response.
1894 */
1895 ciss_report_request(cr, &command_status, NULL);
1896 switch(command_status) {
1897 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1898 /* we should get a logical drive status changed event here */
1899 break;
1900 default:
1901 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1902 ciss_name_command_status(command_status));
1903 break;
1904 }
1905
1906out:
1907 if (cr != NULL)
1908 ciss_release_request(cr);
1909 return(error);
1910}
1911
1912/************************************************************************
1913 * Release adapter resources.
1914 */
1915static void
1916ciss_free(struct ciss_softc *sc)
1917{
1918 struct ciss_request *cr;
1919 int i, j;
1920
1921 debug_called(1);
1922
1923 /* we're going away */
1924 sc->ciss_flags |= CISS_FLAG_ABORTING;
1925
1926 /* terminate the periodic heartbeat routine */
1927 callout_stop(&sc->ciss_periodic);
1928
1929 /* cancel the Event Notify chain */
1930 ciss_notify_abort(sc);
1931
1932 ciss_kill_notify_thread(sc);
1933
1934 /* disconnect from CAM */
1935 if (sc->ciss_cam_sim) {
1936 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1937 if (sc->ciss_cam_sim[i]) {
1938 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1939 cam_sim_free(sc->ciss_cam_sim[i], 0);
1940 }
1941 }
1942 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1943 CISS_PHYSICAL_BASE; i++) {
1944 if (sc->ciss_cam_sim[i]) {
1945 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1946 cam_sim_free(sc->ciss_cam_sim[i], 0);
1947 }
1948 }
1949 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1950 }
1951 if (sc->ciss_cam_devq)
1952 cam_simq_free(sc->ciss_cam_devq);
1953
1954 /* remove the control device */
1955 mtx_unlock(&sc->ciss_mtx);
1956 if (sc->ciss_dev_t != NULL)
1957 destroy_dev(sc->ciss_dev_t);
1958
1959 /* Final cleanup of the callout. */
1960 callout_drain(&sc->ciss_periodic);
1961 mtx_destroy(&sc->ciss_mtx);
1962
1963 /* free the controller data */
1964 if (sc->ciss_id != NULL)
1965 free(sc->ciss_id, CISS_MALLOC_CLASS);
1966
1967 /* release I/O resources */
1968 if (sc->ciss_regs_resource != NULL)
1969 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1970 sc->ciss_regs_rid, sc->ciss_regs_resource);
1971 if (sc->ciss_cfg_resource != NULL)
1972 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1973 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1974 if (sc->ciss_intr != NULL)
1975 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1976 if (sc->ciss_irq_resource != NULL)
1977 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1978 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
1979 if (sc->ciss_msi)
1980 pci_release_msi(sc->ciss_dev);
1981
1982 while ((cr = ciss_dequeue_free(sc)) != NULL)
1983 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
1984 if (sc->ciss_buffer_dmat)
1985 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1986
1987 /* destroy command memory and DMA tag */
1988 if (sc->ciss_command != NULL) {
1989 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1990 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1991 }
1992 if (sc->ciss_command_dmat)
1993 bus_dma_tag_destroy(sc->ciss_command_dmat);
1994
1995 if (sc->ciss_reply) {
1996 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
1997 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
1998 }
1999 if (sc->ciss_reply_dmat)
2000 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2001
2002 /* destroy DMA tags */
2003 if (sc->ciss_parent_dmat)
2004 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2005 if (sc->ciss_logical) {
2006 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
2007 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2008 if (sc->ciss_logical[i][j].cl_ldrive)
2009 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2010 if (sc->ciss_logical[i][j].cl_lstatus)
2011 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2012 }
2013 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2014 }
2015 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2016 }
2017
2018 if (sc->ciss_physical) {
2019 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2020 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2021 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2022 }
2023
2024 if (sc->ciss_controllers)
2025 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2026
2027}
2028
2029/************************************************************************
2030 * Give a command to the adapter.
2031 *
2032 * Note that this uses the simple transport layer directly. If we
2033 * want to add support for other layers, we'll need a switch of some
2034 * sort.
2035 *
2036 * Note that the simple transport layer has no way of refusing a
2037 * command; we only have as many request structures as the adapter
2038 * supports commands, so we don't have to check (this presumes that
2039 * the adapter can handle commands as fast as we throw them at it).
2040 */
2041static int
2042ciss_start(struct ciss_request *cr)
2043{
2044 struct ciss_command *cc; /* XXX debugging only */
2045 int error;
2046
2047 cc = cr->cr_cc;
2048 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2049
2050 /*
2051 * Map the request's data.
2052 */
2053 if ((error = ciss_map_request(cr)))
2054 return(error);
2055
2056#if 0
2057 ciss_print_request(cr);
2058#endif
2059
2060 return(0);
2061}
2062
2063/************************************************************************
2064 * Fetch completed request(s) from the adapter, queue them for
2065 * completion handling.
2066 *
2067 * Note that this uses the simple transport layer directly. If we
2068 * want to add support for other layers, we'll need a switch of some
2069 * sort.
2070 *
2071 * Note that the simple transport mechanism does not require any
2072 * reentrancy protection; the OPQ read is atomic. If there is a
2073 * chance of a race with something else that might move the request
2074 * off the busy list, then we will have to lock against that
2075 * (eg. timeouts, etc.)
2076 */
2077static void
2078ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2079{
2080 struct ciss_request *cr;
2081 struct ciss_command *cc;
2082 u_int32_t tag, index;
2083
2084 debug_called(3);
2085
2086 /*
2087 * Loop quickly taking requests from the adapter and moving them
2088 * to the completed queue.
2089 */
2090 for (;;) {
2091
2092 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2093 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2094 break;
2095 index = tag >> 2;
2096 debug(2, "completed command %d%s", index,
2097 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2098 if (index >= sc->ciss_max_requests) {
2099 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2100 continue;
2101 }
2102 cr = &(sc->ciss_request[index]);
2103 cc = cr->cr_cc;
2104 cc->header.host_tag = tag; /* not updated by adapter */
2105 ciss_enqueue_complete(cr, qh);
2106 }
2107
2108}
2109
2110static void
2111ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2112{
2113 struct ciss_request *cr;
2114 struct ciss_command *cc;
2115 u_int32_t tag, index;
2116
2117 debug_called(3);
2118
2119 /*
2120 * Loop quickly taking requests from the adapter and moving them
2121 * to the completed queue.
2122 */
2123 for (;;) {
2124 tag = sc->ciss_reply[sc->ciss_rqidx];
2125 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2126 break;
2127 index = tag >> 2;
2128 debug(2, "completed command %d%s\n", index,
2129 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2130 if (index < sc->ciss_max_requests) {
2131 cr = &(sc->ciss_request[index]);
2132 cc = cr->cr_cc;
2133 cc->header.host_tag = tag; /* not updated by adapter */
2134 ciss_enqueue_complete(cr, qh);
2135 } else {
2136 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2137 }
2138 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2139 sc->ciss_rqidx = 0;
2140 sc->ciss_cycle ^= 1;
2141 }
2142 }
2143
2144}
2145
2146/************************************************************************
2147 * Take an interrupt from the adapter.
2148 */
2149static void
2150ciss_intr(void *arg)
2151{
2152 cr_qhead_t qh;
2153 struct ciss_softc *sc = (struct ciss_softc *)arg;
2154
2155 /*
2156 * The only interrupt we recognise indicates that there are
2157 * entries in the outbound post queue.
2158 */
2159 STAILQ_INIT(&qh);
2160 ciss_done(sc, &qh);
2161 mtx_lock(&sc->ciss_mtx);
2162 ciss_complete(sc, &qh);
2163 mtx_unlock(&sc->ciss_mtx);
2164}
2165
2166static void
2167ciss_perf_intr(void *arg)
2168{
2169 struct ciss_softc *sc = (struct ciss_softc *)arg;
2170
2171 /* Clear the interrupt and flush the bridges. Docs say that the flush
2172 * needs to be done twice, which doesn't seem right.
2173 */
2174 CISS_TL_PERF_CLEAR_INT(sc);
2175 CISS_TL_PERF_FLUSH_INT(sc);
2176
2177 ciss_perf_msi_intr(sc);
2178}
2179
2180static void
2181ciss_perf_msi_intr(void *arg)
2182{
2183 cr_qhead_t qh;
2184 struct ciss_softc *sc = (struct ciss_softc *)arg;
2185
2186 STAILQ_INIT(&qh);
2187 ciss_perf_done(sc, &qh);
2188 mtx_lock(&sc->ciss_mtx);
2189 ciss_complete(sc, &qh);
2190 mtx_unlock(&sc->ciss_mtx);
2191}
2192
2193
2194/************************************************************************
2195 * Process completed requests.
2196 *
2197 * Requests can be completed in three fashions:
2198 *
2199 * - by invoking a callback function (cr_complete is non-null)
2200 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2201 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2202 */
2203static void
2204ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2205{
2206 struct ciss_request *cr;
2207
2208 debug_called(2);
2209
2210 /*
2211 * Loop taking requests off the completed queue and performing
2212 * completion processing on them.
2213 */
2214 for (;;) {
2215 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2216 break;
2217 ciss_unmap_request(cr);
2218
2219 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2220 ciss_printf(sc, "WARNING: completing non-busy request\n");
2221 cr->cr_flags &= ~CISS_REQ_BUSY;
2222
2223 /*
2224 * If the request has a callback, invoke it.
2225 */
2226 if (cr->cr_complete != NULL) {
2227 cr->cr_complete(cr);
2228 continue;
2229 }
2230
2231 /*
2232 * If someone is sleeping on this request, wake them up.
2233 */
2234 if (cr->cr_flags & CISS_REQ_SLEEP) {
2235 cr->cr_flags &= ~CISS_REQ_SLEEP;
2236 wakeup(cr);
2237 continue;
2238 }
2239
2240 /*
2241 * If someone is polling this request for completion, signal.
2242 */
2243 if (cr->cr_flags & CISS_REQ_POLL) {
2244 cr->cr_flags &= ~CISS_REQ_POLL;
2245 continue;
2246 }
2247
2248 /*
2249 * Give up and throw the request back on the free queue. This
2250 * should never happen; resources will probably be lost.
2251 */
2252 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2253 ciss_enqueue_free(cr);
2254 }
2255}
2256
2257/************************************************************************
2258 * Report on the completion status of a request, and pass back SCSI
2259 * and command status values.
2260 */
2261static int
2262_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2263{
2264 struct ciss_command *cc;
2265 struct ciss_error_info *ce;
2266
2267 debug_called(2);
2268
2269 cc = cr->cr_cc;
2270 ce = (struct ciss_error_info *)&(cc->sg[0]);
2271
2272 /*
2273 * We don't consider data under/overrun an error for the Report
2274 * Logical/Physical LUNs commands.
2275 */
2276 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2277 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2278 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2279 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2280 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2281 (cc->cdb.cdb[0] == INQUIRY))) {
2282 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2283 debug(2, "ignoring irrelevant under/overrun error");
2284 }
2285
2286 /*
2287 * Check the command's error bit, if clear, there's no status and
2288 * everything is OK.
2289 */
2290 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2291 if (scsi_status != NULL)
2292 *scsi_status = SCSI_STATUS_OK;
2293 if (command_status != NULL)
2294 *command_status = CISS_CMD_STATUS_SUCCESS;
2295 return(0);
2296 } else {
2297 if (command_status != NULL)
2298 *command_status = ce->command_status;
2299 if (scsi_status != NULL) {
2300 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2301 *scsi_status = ce->scsi_status;
2302 } else {
2303 *scsi_status = -1;
2304 }
2305 }
2306 if (bootverbose)
2307 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2308 ce->command_status, ciss_name_command_status(ce->command_status),
2309 ce->scsi_status);
2310 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2311 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2312 ce->additional_error_info.invalid_command.offense_size,
2313 ce->additional_error_info.invalid_command.offense_offset,
2314 ce->additional_error_info.invalid_command.offense_value,
2315 func);
2316 }
2317 }
2318#if 0
2319 ciss_print_request(cr);
2320#endif
2321 return(1);
2322}
2323
2324/************************************************************************
2325 * Issue a request and don't return until it's completed.
2326 *
2327 * Depending on adapter status, we may poll or sleep waiting for
2328 * completion.
2329 */
2330static int
2331ciss_synch_request(struct ciss_request *cr, int timeout)
2332{
2333 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2334 return(ciss_wait_request(cr, timeout));
2335 } else {
2336 return(ciss_poll_request(cr, timeout));
2337 }
2338}
2339
2340/************************************************************************
2341 * Issue a request and poll for completion.
2342 *
2343 * Timeout in milliseconds.
2344 */
2345static int
2346ciss_poll_request(struct ciss_request *cr, int timeout)
2347{
2348 cr_qhead_t qh;
2349 struct ciss_softc *sc;
2350 int error;
2351
2352 debug_called(2);
2353
2354 STAILQ_INIT(&qh);
2355 sc = cr->cr_sc;
2356 cr->cr_flags |= CISS_REQ_POLL;
2357 if ((error = ciss_start(cr)) != 0)
2358 return(error);
2359
2360 do {
2361 if (sc->ciss_perf)
2362 ciss_perf_done(sc, &qh);
2363 else
2364 ciss_done(sc, &qh);
2365 ciss_complete(sc, &qh);
2366 if (!(cr->cr_flags & CISS_REQ_POLL))
2367 return(0);
2368 DELAY(1000);
2369 } while (timeout-- >= 0);
2370 return(EWOULDBLOCK);
2371}
2372
2373/************************************************************************
2374 * Issue a request and sleep waiting for completion.
2375 *
2376 * Timeout in milliseconds. Note that a spurious wakeup will reset
2377 * the timeout.
2378 */
2379static int
2380ciss_wait_request(struct ciss_request *cr, int timeout)
2381{
2382 int error;
2383
2384 debug_called(2);
2385
2386 cr->cr_flags |= CISS_REQ_SLEEP;
2387 if ((error = ciss_start(cr)) != 0)
2388 return(error);
2389
2390 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2391 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000);
2392 }
2393 return(error);
2394}
2395
2396#if 0
2397/************************************************************************
2398 * Abort a request. Note that a potential exists here to race the
2399 * request being completed; the caller must deal with this.
2400 */
2401static int
2402ciss_abort_request(struct ciss_request *ar)
2403{
2404 struct ciss_request *cr;
2405 struct ciss_command *cc;
2406 struct ciss_message_cdb *cmc;
2407 int error;
2408
2409 debug_called(1);
2410
2411 /* get a request */
2412 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2413 return(error);
2414
2415 /* build the abort command */
2416 cc = cr->cr_cc;
2417 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2418 cc->header.address.physical.target = 0;
2419 cc->header.address.physical.bus = 0;
2420 cc->cdb.cdb_length = sizeof(*cmc);
2421 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2422 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2423 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2424 cc->cdb.timeout = 30;
2425
2426 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2427 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2428 cmc->type = CISS_MESSAGE_ABORT_TASK;
2429 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2430
2431 /*
2432 * Send the request and wait for a response. If we believe we
2433 * aborted the request OK, clear the flag that indicates it's
2434 * running.
2435 */
2436 error = ciss_synch_request(cr, 35 * 1000);
2437 if (!error)
2438 error = ciss_report_request(cr, NULL, NULL);
2439 ciss_release_request(cr);
2440
2441 return(error);
2442}
2443#endif
2444
2445
2446/************************************************************************
2447 * Fetch and initialise a request
2448 */
2449static int
2450ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2451{
2452 struct ciss_request *cr;
2453
2454 debug_called(2);
2455
2456 /*
2457 * Get a request and clean it up.
2458 */
2459 if ((cr = ciss_dequeue_free(sc)) == NULL)
2460 return(ENOMEM);
2461
2462 cr->cr_data = NULL;
2463 cr->cr_flags = 0;
2464 cr->cr_complete = NULL;
2465 cr->cr_private = NULL;
2466 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2467
2468 ciss_preen_command(cr);
2469 *crp = cr;
2470 return(0);
2471}
2472
2473static void
2474ciss_preen_command(struct ciss_request *cr)
2475{
2476 struct ciss_command *cc;
2477 u_int32_t cmdphys;
2478
2479 /*
2480 * Clean up the command structure.
2481 *
2482 * Note that we set up the error_info structure here, since the
2483 * length can be overwritten by any command.
2484 */
2485 cc = cr->cr_cc;
2486 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2487 cc->header.sg_total = 0;
2488 cc->header.host_tag = cr->cr_tag << 2;
2489 cc->header.host_tag_zeroes = 0;
2490 cmdphys = cr->cr_ccphys;
2491 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2492 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2493}
2494
2495/************************************************************************
2496 * Release a request to the free list.
2497 */
2498static void
2499ciss_release_request(struct ciss_request *cr)
2500{
2501 struct ciss_softc *sc;
2502
2503 debug_called(2);
2504
2505 sc = cr->cr_sc;
2506
2507 /* release the request to the free queue */
2508 ciss_requeue_free(cr);
2509}
2510
2511/************************************************************************
2512 * Allocate a request that will be used to send a BMIC command. Do some
2513 * of the common setup here to avoid duplicating it everywhere else.
2514 */
2515static int
2516ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2517 int opcode, void **bufp, size_t bufsize)
2518{
2519 struct ciss_request *cr;
2520 struct ciss_command *cc;
2521 struct ciss_bmic_cdb *cbc;
2522 void *buf;
2523 int error;
2524 int dataout;
2525
2526 debug_called(2);
2527
2528 cr = NULL;
2529 buf = NULL;
2530
2531 /*
2532 * Get a request.
2533 */
2534 if ((error = ciss_get_request(sc, &cr)) != 0)
2535 goto out;
2536
2537 /*
2538 * Allocate data storage if requested, determine the data direction.
2539 */
2540 dataout = 0;
2541 if ((bufsize > 0) && (bufp != NULL)) {
2542 if (*bufp == NULL) {
2543 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2544 error = ENOMEM;
2545 goto out;
2546 }
2547 } else {
2548 buf = *bufp;
2549 dataout = 1; /* we are given a buffer, so we are writing */
2550 }
2551 }
2552
2553 /*
2554 * Build a CISS BMIC command to get the logical drive ID.
2555 */
2556 cr->cr_data = buf;
2557 cr->cr_length = bufsize;
2558 if (!dataout)
2559 cr->cr_flags = CISS_REQ_DATAIN;
2560
2561 cc = cr->cr_cc;
2562 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2563 cc->header.address.physical.bus = 0;
2564 cc->header.address.physical.target = 0;
2565 cc->cdb.cdb_length = sizeof(*cbc);
2566 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2567 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2568 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2569 cc->cdb.timeout = 0;
2570
2571 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2572 bzero(cbc, sizeof(*cbc));
2573 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2574 cbc->bmic_opcode = opcode;
2575 cbc->size = htons((u_int16_t)bufsize);
2576
2577out:
2578 if (error) {
2579 if (cr != NULL)
2580 ciss_release_request(cr);
2581 } else {
2582 *crp = cr;
2583 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2584 *bufp = buf;
2585 }
2586 return(error);
2587}
2588
2589/************************************************************************
2590 * Handle a command passed in from userspace.
2591 */
2592static int
2593ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2594{
2595 struct ciss_request *cr;
2596 struct ciss_command *cc;
2597 struct ciss_error_info *ce;
2598 int error = 0;
2599
2600 debug_called(1);
2601
2602 cr = NULL;
2603
2604 /*
2605 * Get a request.
2606 */
2607 while (ciss_get_request(sc, &cr) != 0)
2608 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2609 cc = cr->cr_cc;
2610
2611 /*
2612 * Allocate an in-kernel databuffer if required, copy in user data.
2613 */
2614 mtx_unlock(&sc->ciss_mtx);
2615 cr->cr_length = ioc->buf_size;
2616 if (ioc->buf_size > 0) {
2617 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2618 error = ENOMEM;
2619 goto out_unlocked;
2620 }
2621 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2622 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2623 goto out_unlocked;
2624 }
2625 }
2626
2627 /*
2628 * Build the request based on the user command.
2629 */
2630 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2631 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2632
2633 /* XXX anything else to populate here? */
2634 mtx_lock(&sc->ciss_mtx);
2635
2636 /*
2637 * Run the command.
2638 */
2639 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2640 debug(0, "request failed - %d", error);
2641 goto out;
2642 }
2643
2644 /*
2645 * Check to see if the command succeeded.
2646 */
2647 ce = (struct ciss_error_info *)&(cc->sg[0]);
2648 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2649 bzero(ce, sizeof(*ce));
2650
2651 /*
2652 * Copy the results back to the user.
2653 */
2654 bcopy(ce, &ioc->error_info, sizeof(*ce));
2655 mtx_unlock(&sc->ciss_mtx);
2656 if ((ioc->buf_size > 0) &&
2657 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2658 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2659 goto out_unlocked;
2660 }
2661
2662 /* done OK */
2663 error = 0;
2664
2665out_unlocked:
2666 mtx_lock(&sc->ciss_mtx);
2667
2668out:
2669 if ((cr != NULL) && (cr->cr_data != NULL))
2670 free(cr->cr_data, CISS_MALLOC_CLASS);
2671 if (cr != NULL)
2672 ciss_release_request(cr);
2673 return(error);
2674}
2675
2676/************************************************************************
2677 * Map a request into bus-visible space, initialise the scatter/gather
2678 * list.
2679 */
2680static int
2681ciss_map_request(struct ciss_request *cr)
2682{
2683 struct ciss_softc *sc;
2684 int error = 0;
2685
2686 debug_called(2);
2687
2688 sc = cr->cr_sc;
2689
2690 /* check that mapping is necessary */
2691 if (cr->cr_flags & CISS_REQ_MAPPED)
2692 return(0);
2693
2694 cr->cr_flags |= CISS_REQ_MAPPED;
2695
2696 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2697 BUS_DMASYNC_PREWRITE);
2698
2699 if (cr->cr_data != NULL) {
2700 if (cr->cr_flags & CISS_REQ_CCB)
2701 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2702 cr->cr_datamap, cr->cr_data,
2703 ciss_request_map_helper, cr, 0);
2704 else
2705 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2706 cr->cr_data, cr->cr_length,
2707 ciss_request_map_helper, cr, 0);
2708 if (error != 0)
2709 return (error);
2710 } else {
2711 /*
2712 * Post the command to the adapter.
2713 */
2714 cr->cr_sg_tag = CISS_SG_NONE;
2715 cr->cr_flags |= CISS_REQ_BUSY;
2716 if (sc->ciss_perf)
2717 CISS_TL_PERF_POST_CMD(sc, cr);
2718 else
2719 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2720 }
2721
2722 return(0);
2723}
2724
2725static void
2726ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2727{
2728 struct ciss_command *cc;
2729 struct ciss_request *cr;
2730 struct ciss_softc *sc;
2731 int i;
2732
2733 debug_called(2);
2734
2735 cr = (struct ciss_request *)arg;
2736 sc = cr->cr_sc;
2737 cc = cr->cr_cc;
2738
2739 for (i = 0; i < nseg; i++) {
2740 cc->sg[i].address = segs[i].ds_addr;
2741 cc->sg[i].length = segs[i].ds_len;
2742 cc->sg[i].extension = 0;
2743 }
2744 /* we leave the s/g table entirely within the command */
2745 cc->header.sg_in_list = nseg;
2746 cc->header.sg_total = nseg;
2747
2748 if (cr->cr_flags & CISS_REQ_DATAIN)
2749 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2750 if (cr->cr_flags & CISS_REQ_DATAOUT)
2751 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2752
2753 if (nseg == 0)
2754 cr->cr_sg_tag = CISS_SG_NONE;
2755 else if (nseg == 1)
2756 cr->cr_sg_tag = CISS_SG_1;
2757 else if (nseg == 2)
2758 cr->cr_sg_tag = CISS_SG_2;
2759 else if (nseg <= 4)
2760 cr->cr_sg_tag = CISS_SG_4;
2761 else if (nseg <= 8)
2762 cr->cr_sg_tag = CISS_SG_8;
2763 else if (nseg <= 16)
2764 cr->cr_sg_tag = CISS_SG_16;
2765 else if (nseg <= 32)
2766 cr->cr_sg_tag = CISS_SG_32;
2767 else
2768 cr->cr_sg_tag = CISS_SG_MAX;
2769
2770 /*
2771 * Post the command to the adapter.
2772 */
2773 cr->cr_flags |= CISS_REQ_BUSY;
2774 if (sc->ciss_perf)
2775 CISS_TL_PERF_POST_CMD(sc, cr);
2776 else
2777 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2778}
2779
2780/************************************************************************
2781 * Unmap a request from bus-visible space.
2782 */
2783static void
2784ciss_unmap_request(struct ciss_request *cr)
2785{
2786 struct ciss_softc *sc;
2787
2788 debug_called(2);
2789
2790 sc = cr->cr_sc;
2791
2792 /* check that unmapping is necessary */
2793 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2794 return;
2795
2796 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2797 BUS_DMASYNC_POSTWRITE);
2798
2799 if (cr->cr_data == NULL)
2800 goto out;
2801
2802 if (cr->cr_flags & CISS_REQ_DATAIN)
2803 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2804 if (cr->cr_flags & CISS_REQ_DATAOUT)
2805 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2806
2807 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2808out:
2809 cr->cr_flags &= ~CISS_REQ_MAPPED;
2810}
2811
2812/************************************************************************
2813 * Attach the driver to CAM.
2814 *
2815 * We put all the logical drives on a single SCSI bus.
2816 */
2817static int
2818ciss_cam_init(struct ciss_softc *sc)
2819{
2820 int i, maxbus;
2821
2822 debug_called(1);
2823
2824 /*
2825 * Allocate a devq. We can reuse this for the masked physical
2826 * devices if we decide to export these as well.
2827 */
2828 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2829 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2830 return(ENOMEM);
2831 }
2832
2833 /*
2834 * Create a SIM.
2835 *
2836 * This naturally wastes a bit of memory. The alternative is to allocate
2837 * and register each bus as it is found, and then track them on a linked
2838 * list. Unfortunately, the driver has a few places where it needs to
2839 * look up the SIM based solely on bus number, and it's unclear whether
2840 * a list traversal would work for these situations.
2841 */
2842 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2843 CISS_PHYSICAL_BASE);
2844 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2845 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2846 if (sc->ciss_cam_sim == NULL) {
2847 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2848 return(ENOMEM);
2849 }
2850
2851 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2852 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2853 "ciss", sc,
2854 device_get_unit(sc->ciss_dev),
2855 &sc->ciss_mtx,
2856 2,
2857 sc->ciss_max_requests - 2,
2858 sc->ciss_cam_devq)) == NULL) {
2859 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2860 return(ENOMEM);
2861 }
2862
2863 /*
2864 * Register bus with this SIM.
2865 */
2866 mtx_lock(&sc->ciss_mtx);
2867 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2868 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2869 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2870 mtx_unlock(&sc->ciss_mtx);
2871 return (ENXIO);
2872 }
2873 }
2874 mtx_unlock(&sc->ciss_mtx);
2875 }
2876
2877 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2878 CISS_PHYSICAL_BASE; i++) {
2879 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2880 "ciss", sc,
2881 device_get_unit(sc->ciss_dev),
2882 &sc->ciss_mtx, 1,
2883 sc->ciss_max_requests - 2,
2884 sc->ciss_cam_devq)) == NULL) {
2885 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2886 return (ENOMEM);
2887 }
2888
2889 mtx_lock(&sc->ciss_mtx);
2890 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2891 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2892 mtx_unlock(&sc->ciss_mtx);
2893 return (ENXIO);
2894 }
2895 mtx_unlock(&sc->ciss_mtx);
2896 }
2897
2898 return(0);
2899}
2900
2901/************************************************************************
2902 * Initiate a rescan of the 'logical devices' SIM
2903 */
2904static void
2905ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2906{
2907 union ccb *ccb;
2908
2909 debug_called(1);
2910
2911 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2912 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2913 return;
2914 }
2915
| 28 */
29
30/*
31 * Common Interface for SCSI-3 Support driver.
32 *
33 * CISS claims to provide a common interface between a generic SCSI
34 * transport and an intelligent host adapter.
35 *
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.
43 *
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.
54 *
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.
61 *
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.
65 *
66 *
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
69 * driver happen.
70 *
71 * More thanks must go to John Cagle at HP for the countless hours
72 * spent making this driver "work" with the MSA* series storage
73 * enclosures. Without his help (and nagging), this driver could not
74 * be used with these enclosures.
75 */
76
77#include <sys/param.h>
78#include <sys/systm.h>
79#include <sys/malloc.h>
80#include <sys/kernel.h>
81#include <sys/bus.h>
82#include <sys/conf.h>
83#include <sys/stat.h>
84#include <sys/kthread.h>
85#include <sys/queue.h>
86#include <sys/sysctl.h>
87
88#include <cam/cam.h>
89#include <cam/cam_ccb.h>
90#include <cam/cam_periph.h>
91#include <cam/cam_sim.h>
92#include <cam/cam_xpt_sim.h>
93#include <cam/scsi/scsi_all.h>
94#include <cam/scsi/scsi_message.h>
95
96#include <machine/bus.h>
97#include <machine/endian.h>
98#include <machine/resource.h>
99#include <sys/rman.h>
100
101#include <dev/pci/pcireg.h>
102#include <dev/pci/pcivar.h>
103
104#include <dev/ciss/cissreg.h>
105#include <dev/ciss/cissio.h>
106#include <dev/ciss/cissvar.h>
107
108static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
109 "ciss internal data buffers");
110
111/* pci interface */
112static int ciss_lookup(device_t dev);
113static int ciss_probe(device_t dev);
114static int ciss_attach(device_t dev);
115static int ciss_detach(device_t dev);
116static int ciss_shutdown(device_t dev);
117
118/* (de)initialisation functions, control wrappers */
119static int ciss_init_pci(struct ciss_softc *sc);
120static int ciss_setup_msix(struct ciss_softc *sc);
121static int ciss_init_perf(struct ciss_softc *sc);
122static int ciss_wait_adapter(struct ciss_softc *sc);
123static int ciss_flush_adapter(struct ciss_softc *sc);
124static int ciss_init_requests(struct ciss_softc *sc);
125static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
126 int nseg, int error);
127static int ciss_identify_adapter(struct ciss_softc *sc);
128static int ciss_init_logical(struct ciss_softc *sc);
129static int ciss_init_physical(struct ciss_softc *sc);
130static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
131static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
132static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
133static int ciss_update_config(struct ciss_softc *sc);
134static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
135static void ciss_init_sysctl(struct ciss_softc *sc);
136static void ciss_soft_reset(struct ciss_softc *sc);
137static void ciss_free(struct ciss_softc *sc);
138static void ciss_spawn_notify_thread(struct ciss_softc *sc);
139static void ciss_kill_notify_thread(struct ciss_softc *sc);
140
141/* request submission/completion */
142static int ciss_start(struct ciss_request *cr);
143static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
144static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
145static void ciss_intr(void *arg);
146static void ciss_perf_intr(void *arg);
147static void ciss_perf_msi_intr(void *arg);
148static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
149static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
150static int ciss_synch_request(struct ciss_request *cr, int timeout);
151static int ciss_poll_request(struct ciss_request *cr, int timeout);
152static int ciss_wait_request(struct ciss_request *cr, int timeout);
153#if 0
154static int ciss_abort_request(struct ciss_request *cr);
155#endif
156
157/* request queueing */
158static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
159static void ciss_preen_command(struct ciss_request *cr);
160static void ciss_release_request(struct ciss_request *cr);
161
162/* request helpers */
163static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
164 int opcode, void **bufp, size_t bufsize);
165static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
166
167/* DMA map/unmap */
168static int ciss_map_request(struct ciss_request *cr);
169static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
170 int nseg, int error);
171static void ciss_unmap_request(struct ciss_request *cr);
172
173/* CAM interface */
174static int ciss_cam_init(struct ciss_softc *sc);
175static void ciss_cam_rescan_target(struct ciss_softc *sc,
176 int bus, int target);
177static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
178static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
179static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
180static void ciss_cam_poll(struct cam_sim *sim);
181static void ciss_cam_complete(struct ciss_request *cr);
182static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
183static struct cam_periph *ciss_find_periph(struct ciss_softc *sc,
184 int bus, int target);
185static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
186
187/* periodic status monitoring */
188static void ciss_periodic(void *arg);
189static void ciss_nop_complete(struct ciss_request *cr);
190static void ciss_disable_adapter(struct ciss_softc *sc);
191static void ciss_notify_event(struct ciss_softc *sc);
192static void ciss_notify_complete(struct ciss_request *cr);
193static int ciss_notify_abort(struct ciss_softc *sc);
194static int ciss_notify_abort_bmic(struct ciss_softc *sc);
195static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
196static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
197static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
198
199/* debugging output */
200static void ciss_print_request(struct ciss_request *cr);
201static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
202static const char *ciss_name_ldrive_status(int status);
203static int ciss_decode_ldrive_status(int status);
204static const char *ciss_name_ldrive_org(int org);
205static const char *ciss_name_command_status(int status);
206
207/*
208 * PCI bus interface.
209 */
210static device_method_t ciss_methods[] = {
211 /* Device interface */
212 DEVMETHOD(device_probe, ciss_probe),
213 DEVMETHOD(device_attach, ciss_attach),
214 DEVMETHOD(device_detach, ciss_detach),
215 DEVMETHOD(device_shutdown, ciss_shutdown),
216 { 0, 0 }
217};
218
219static driver_t ciss_pci_driver = {
220 "ciss",
221 ciss_methods,
222 sizeof(struct ciss_softc)
223};
224
225static devclass_t ciss_devclass;
226DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
227MODULE_DEPEND(ciss, cam, 1, 1, 1);
228MODULE_DEPEND(ciss, pci, 1, 1, 1);
229
230/*
231 * Control device interface.
232 */
233static d_open_t ciss_open;
234static d_close_t ciss_close;
235static d_ioctl_t ciss_ioctl;
236
237static struct cdevsw ciss_cdevsw = {
238 .d_version = D_VERSION,
239 .d_flags = 0,
240 .d_open = ciss_open,
241 .d_close = ciss_close,
242 .d_ioctl = ciss_ioctl,
243 .d_name = "ciss",
244};
245
246/*
247 * This tunable can be set at boot time and controls whether physical devices
248 * that are marked hidden by the firmware should be exposed anyways.
249 */
250static unsigned int ciss_expose_hidden_physical = 0;
251TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
252
253static unsigned int ciss_nop_message_heartbeat = 0;
254TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
255
256/*
257 * This tunable can force a particular transport to be used:
258 * <= 0 : use default
259 * 1 : force simple
260 * 2 : force performant
261 */
262static int ciss_force_transport = 0;
263TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
264
265/*
266 * This tunable can force a particular interrupt delivery method to be used:
267 * <= 0 : use default
268 * 1 : force INTx
269 * 2 : force MSIX
270 */
271static int ciss_force_interrupt = 0;
272TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
273
274/************************************************************************
275 * CISS adapters amazingly don't have a defined programming interface
276 * value. (One could say some very despairing things about PCI and
277 * people just not getting the general idea.) So we are forced to
278 * stick with matching against subvendor/subdevice, and thus have to
279 * be updated for every new CISS adapter that appears.
280 */
281#define CISS_BOARD_UNKNWON 0
282#define CISS_BOARD_SA5 1
283#define CISS_BOARD_SA5B 2
284#define CISS_BOARD_NOMSI (1<<4)
285#define CISS_BOARD_SIMPLE (1<<5)
286
287static struct
288{
289 u_int16_t subvendor;
290 u_int16_t subdevice;
291 int flags;
292 char *desc;
293} ciss_vendor_data[] = {
294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
295 "Compaq Smart Array 5300" },
296 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
297 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
298 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
299 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
300 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
301 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
302 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
303 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
304 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
305 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
306 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
308 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
309 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
310 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
311 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
312 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
313 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
314 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
317 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
318 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
319 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
320 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
321 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
325 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
326 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
327 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
328 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
329 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
330 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
331 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
332 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
333 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
334 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
335 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
336 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
337 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
338 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
339 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
340 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
341 { 0, 0, 0, NULL }
342};
343
344/************************************************************************
345 * Find a match for the device in our list of known adapters.
346 */
347static int
348ciss_lookup(device_t dev)
349{
350 int i;
351
352 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
353 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
354 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
355 return(i);
356 }
357 return(-1);
358}
359
360/************************************************************************
361 * Match a known CISS adapter.
362 */
363static int
364ciss_probe(device_t dev)
365{
366 int i;
367
368 i = ciss_lookup(dev);
369 if (i != -1) {
370 device_set_desc(dev, ciss_vendor_data[i].desc);
371 return(BUS_PROBE_DEFAULT);
372 }
373 return(ENOENT);
374}
375
376/************************************************************************
377 * Attach the driver to this adapter.
378 */
379static int
380ciss_attach(device_t dev)
381{
382 struct ciss_softc *sc;
383 int error;
384
385 debug_called(1);
386
387#ifdef CISS_DEBUG
388 /* print structure/union sizes */
389 debug_struct(ciss_command);
390 debug_struct(ciss_header);
391 debug_union(ciss_device_address);
392 debug_struct(ciss_cdb);
393 debug_struct(ciss_report_cdb);
394 debug_struct(ciss_notify_cdb);
395 debug_struct(ciss_notify);
396 debug_struct(ciss_message_cdb);
397 debug_struct(ciss_error_info_pointer);
398 debug_struct(ciss_error_info);
399 debug_struct(ciss_sg_entry);
400 debug_struct(ciss_config_table);
401 debug_struct(ciss_bmic_cdb);
402 debug_struct(ciss_bmic_id_ldrive);
403 debug_struct(ciss_bmic_id_lstatus);
404 debug_struct(ciss_bmic_id_table);
405 debug_struct(ciss_bmic_id_pdrive);
406 debug_struct(ciss_bmic_blink_pdrive);
407 debug_struct(ciss_bmic_flush_cache);
408 debug_const(CISS_MAX_REQUESTS);
409 debug_const(CISS_MAX_LOGICAL);
410 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
411 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
412 debug_const(CISS_COMMAND_ALLOC_SIZE);
413 debug_const(CISS_COMMAND_SG_LENGTH);
414
415 debug_type(cciss_pci_info_struct);
416 debug_type(cciss_coalint_struct);
417 debug_type(cciss_coalint_struct);
418 debug_type(NodeName_type);
419 debug_type(NodeName_type);
420 debug_type(Heartbeat_type);
421 debug_type(BusTypes_type);
422 debug_type(FirmwareVer_type);
423 debug_type(DriverVer_type);
424 debug_type(IOCTL_Command_struct);
425#endif
426
427 sc = device_get_softc(dev);
428 sc->ciss_dev = dev;
429 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
430 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
431
432 /*
433 * Do PCI-specific init.
434 */
435 if ((error = ciss_init_pci(sc)) != 0)
436 goto out;
437
438 /*
439 * Initialise driver queues.
440 */
441 ciss_initq_free(sc);
442 ciss_initq_notify(sc);
443
444 /*
445 * Initalize device sysctls.
446 */
447 ciss_init_sysctl(sc);
448
449 /*
450 * Initialise command/request pool.
451 */
452 if ((error = ciss_init_requests(sc)) != 0)
453 goto out;
454
455 /*
456 * Get adapter information.
457 */
458 if ((error = ciss_identify_adapter(sc)) != 0)
459 goto out;
460
461 /*
462 * Find all the physical devices.
463 */
464 if ((error = ciss_init_physical(sc)) != 0)
465 goto out;
466
467 /*
468 * Build our private table of logical devices.
469 */
470 if ((error = ciss_init_logical(sc)) != 0)
471 goto out;
472
473 /*
474 * Enable interrupts so that the CAM scan can complete.
475 */
476 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
477
478 /*
479 * Initialise the CAM interface.
480 */
481 if ((error = ciss_cam_init(sc)) != 0)
482 goto out;
483
484 /*
485 * Start the heartbeat routine and event chain.
486 */
487 ciss_periodic(sc);
488
489 /*
490 * Create the control device.
491 */
492 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
493 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
494 "ciss%d", device_get_unit(sc->ciss_dev));
495 sc->ciss_dev_t->si_drv1 = sc;
496
497 /*
498 * The adapter is running; synchronous commands can now sleep
499 * waiting for an interrupt to signal completion.
500 */
501 sc->ciss_flags |= CISS_FLAG_RUNNING;
502
503 ciss_spawn_notify_thread(sc);
504
505 error = 0;
506 out:
507 if (error != 0) {
508 /* ciss_free() expects the mutex to be held */
509 mtx_lock(&sc->ciss_mtx);
510 ciss_free(sc);
511 }
512 return(error);
513}
514
515/************************************************************************
516 * Detach the driver from this adapter.
517 */
518static int
519ciss_detach(device_t dev)
520{
521 struct ciss_softc *sc = device_get_softc(dev);
522
523 debug_called(1);
524
525 mtx_lock(&sc->ciss_mtx);
526 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
527 mtx_unlock(&sc->ciss_mtx);
528 return (EBUSY);
529 }
530
531 /* flush adapter cache */
532 ciss_flush_adapter(sc);
533
534 /* release all resources. The mutex is released and freed here too. */
535 ciss_free(sc);
536
537 return(0);
538}
539
540/************************************************************************
541 * Prepare adapter for system shutdown.
542 */
543static int
544ciss_shutdown(device_t dev)
545{
546 struct ciss_softc *sc = device_get_softc(dev);
547
548 debug_called(1);
549
550 mtx_lock(&sc->ciss_mtx);
551 /* flush adapter cache */
552 ciss_flush_adapter(sc);
553
554 if (sc->ciss_soft_reset)
555 ciss_soft_reset(sc);
556 mtx_unlock(&sc->ciss_mtx);
557
558 return(0);
559}
560
561static void
562ciss_init_sysctl(struct ciss_softc *sc)
563{
564
565 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
566 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
567 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
568}
569
570/************************************************************************
571 * Perform PCI-specific attachment actions.
572 */
573static int
574ciss_init_pci(struct ciss_softc *sc)
575{
576 uintptr_t cbase, csize, cofs;
577 uint32_t method, supported_methods;
578 int error, sqmask, i;
579 void *intr;
580
581 debug_called(1);
582
583 /*
584 * Work out adapter type.
585 */
586 i = ciss_lookup(sc->ciss_dev);
587 if (i < 0) {
588 ciss_printf(sc, "unknown adapter type\n");
589 return (ENXIO);
590 }
591
592 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
593 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
594 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
595 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
596 } else {
597 /*
598 * XXX Big hammer, masks/unmasks all possible interrupts. This should
599 * work on all hardware variants. Need to add code to handle the
600 * "controller crashed" interupt bit that this unmasks.
601 */
602 sqmask = ~0;
603 }
604
605 /*
606 * Allocate register window first (we need this to find the config
607 * struct).
608 */
609 error = ENXIO;
610 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
611 if ((sc->ciss_regs_resource =
612 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
613 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
614 ciss_printf(sc, "can't allocate register window\n");
615 return(ENXIO);
616 }
617 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
618 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
619
620 /*
621 * Find the BAR holding the config structure. If it's not the one
622 * we already mapped for registers, map it too.
623 */
624 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
625 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
626 if ((sc->ciss_cfg_resource =
627 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
628 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
629 ciss_printf(sc, "can't allocate config window\n");
630 return(ENXIO);
631 }
632 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
633 csize = rman_get_end(sc->ciss_cfg_resource) -
634 rman_get_start(sc->ciss_cfg_resource) + 1;
635 } else {
636 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
637 csize = rman_get_end(sc->ciss_regs_resource) -
638 rman_get_start(sc->ciss_regs_resource) + 1;
639 }
640 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
641
642 /*
643 * Use the base/size/offset values we just calculated to
644 * sanity-check the config structure. If it's OK, point to it.
645 */
646 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
647 ciss_printf(sc, "config table outside window\n");
648 return(ENXIO);
649 }
650 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
651 debug(1, "config struct at %p", sc->ciss_cfg);
652
653 /*
654 * Calculate the number of request structures/commands we are
655 * going to provide for this adapter.
656 */
657 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
658
659 /*
660 * Validate the config structure. If we supported other transport
661 * methods, we could select amongst them at this point in time.
662 */
663 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
664 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
665 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
666 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
667 return(ENXIO);
668 }
669
670 /*
671 * Select the mode of operation, prefer Performant.
672 */
673 if (!(sc->ciss_cfg->supported_methods &
674 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
675 ciss_printf(sc, "No supported transport layers: 0x%x\n",
676 sc->ciss_cfg->supported_methods);
677 }
678
679 switch (ciss_force_transport) {
680 case 1:
681 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
682 break;
683 case 2:
684 supported_methods = CISS_TRANSPORT_METHOD_PERF;
685 break;
686 default:
687 /*
688 * Override the capabilities of the BOARD and specify SIMPLE
689 * MODE
690 */
691 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
692 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
693 else
694 supported_methods = sc->ciss_cfg->supported_methods;
695 break;
696 }
697
698setup:
699 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
700 method = CISS_TRANSPORT_METHOD_PERF;
701 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
702 sc->ciss_cfg->transport_offset);
703 if (ciss_init_perf(sc)) {
704 supported_methods &= ~method;
705 goto setup;
706 }
707 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
708 method = CISS_TRANSPORT_METHOD_SIMPLE;
709 } else {
710 ciss_printf(sc, "No supported transport methods: 0x%x\n",
711 sc->ciss_cfg->supported_methods);
712 return(ENXIO);
713 }
714
715 /*
716 * Tell it we're using the low 4GB of RAM. Set the default interrupt
717 * coalescing options.
718 */
719 sc->ciss_cfg->requested_method = method;
720 sc->ciss_cfg->command_physlimit = 0;
721 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
722 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
723
724#ifdef __i386__
725 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
726#endif
727
728 if (ciss_update_config(sc)) {
729 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
730 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
731 return(ENXIO);
732 }
733 if ((sc->ciss_cfg->active_method & method) == 0) {
734 supported_methods &= ~method;
735 if (supported_methods == 0) {
736 ciss_printf(sc, "adapter refuses to go into available transports "
737 "mode (0x%x, 0x%x)\n", supported_methods,
738 sc->ciss_cfg->active_method);
739 return(ENXIO);
740 } else
741 goto setup;
742 }
743
744 /*
745 * Wait for the adapter to come ready.
746 */
747 if ((error = ciss_wait_adapter(sc)) != 0)
748 return(error);
749
750 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
751 * interrupts have a rid of 0, this will be overridden if MSIX is used.
752 */
753 sc->ciss_irq_rid[0] = 0;
754 if (method == CISS_TRANSPORT_METHOD_PERF) {
755 ciss_printf(sc, "PERFORMANT Transport\n");
756 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
757 intr = ciss_perf_msi_intr;
758 } else {
759 intr = ciss_perf_intr;
760 }
761 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
762 * Unfortunately, there is no good way to know if this is a SAS
763 * controller. Hopefully enabling this bit universally will work OK.
764 * It seems to work fine for SA6i controllers.
765 */
766 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
767
768 } else {
769 ciss_printf(sc, "SIMPLE Transport\n");
770 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
771 if (ciss_force_interrupt == 2)
772 /* If this fails, we automatically revert to INTx */
773 ciss_setup_msix(sc);
774 sc->ciss_perf = NULL;
775 intr = ciss_intr;
776 sc->ciss_interrupt_mask = sqmask;
777 }
778
779 /*
780 * Turn off interrupts before we go routing anything.
781 */
782 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
783
784 /*
785 * Allocate and set up our interrupt.
786 */
787 if ((sc->ciss_irq_resource =
788 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
789 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
790 ciss_printf(sc, "can't allocate interrupt\n");
791 return(ENXIO);
792 }
793
794 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
795 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
796 &sc->ciss_intr)) {
797 ciss_printf(sc, "can't set up interrupt\n");
798 return(ENXIO);
799 }
800
801 /*
802 * Allocate the parent bus DMA tag appropriate for our PCI
803 * interface.
804 *
805 * Note that "simple" adapters can only address within a 32-bit
806 * span.
807 */
808 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
809 1, 0, /* alignment, boundary */
810 BUS_SPACE_MAXADDR, /* lowaddr */
811 BUS_SPACE_MAXADDR, /* highaddr */
812 NULL, NULL, /* filter, filterarg */
813 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
814 CISS_MAX_SG_ELEMENTS, /* nsegments */
815 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
816 0, /* flags */
817 NULL, NULL, /* lockfunc, lockarg */
818 &sc->ciss_parent_dmat)) {
819 ciss_printf(sc, "can't allocate parent DMA tag\n");
820 return(ENOMEM);
821 }
822
823 /*
824 * Create DMA tag for mapping buffers into adapter-addressable
825 * space.
826 */
827 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
828 1, 0, /* alignment, boundary */
829 BUS_SPACE_MAXADDR, /* lowaddr */
830 BUS_SPACE_MAXADDR, /* highaddr */
831 NULL, NULL, /* filter, filterarg */
832 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */
833 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
834 BUS_DMA_ALLOCNOW, /* flags */
835 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
836 &sc->ciss_buffer_dmat)) {
837 ciss_printf(sc, "can't allocate buffer DMA tag\n");
838 return(ENOMEM);
839 }
840 return(0);
841}
842
843/************************************************************************
844 * Setup MSI/MSIX operation (Performant only)
845 * Four interrupts are available, but we only use 1 right now. If MSI-X
846 * isn't avaialble, try using MSI instead.
847 */
848static int
849ciss_setup_msix(struct ciss_softc *sc)
850{
851 int val, i;
852
853 /* Weed out devices that don't actually support MSI */
854 i = ciss_lookup(sc->ciss_dev);
855 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
856 return (EINVAL);
857
858 /*
859 * Only need to use the minimum number of MSI vectors, as the driver
860 * doesn't support directed MSIX interrupts.
861 */
862 val = pci_msix_count(sc->ciss_dev);
863 if (val < CISS_MSI_COUNT) {
864 val = pci_msi_count(sc->ciss_dev);
865 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
866 if (val < CISS_MSI_COUNT)
867 return (EINVAL);
868 }
869 val = MIN(val, CISS_MSI_COUNT);
870 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
871 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
872 return (EINVAL);
873 }
874
875 sc->ciss_msi = val;
876 if (bootverbose)
877 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
878 (val != 1) ? "s" : "");
879
880 for (i = 0; i < val; i++)
881 sc->ciss_irq_rid[i] = i + 1;
882
883 return (0);
884
885}
886
887/************************************************************************
888 * Setup the Performant structures.
889 */
890static int
891ciss_init_perf(struct ciss_softc *sc)
892{
893 struct ciss_perf_config *pc = sc->ciss_perf;
894 int reply_size;
895
896 /*
897 * Create the DMA tag for the reply queue.
898 */
899 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
900 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
901 1, 0, /* alignment, boundary */
902 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
903 BUS_SPACE_MAXADDR, /* highaddr */
904 NULL, NULL, /* filter, filterarg */
905 reply_size, 1, /* maxsize, nsegments */
906 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
907 0, /* flags */
908 NULL, NULL, /* lockfunc, lockarg */
909 &sc->ciss_reply_dmat)) {
910 ciss_printf(sc, "can't allocate reply DMA tag\n");
911 return(ENOMEM);
912 }
913 /*
914 * Allocate memory and make it available for DMA.
915 */
916 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
917 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
918 ciss_printf(sc, "can't allocate reply memory\n");
919 return(ENOMEM);
920 }
921 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
922 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
923 bzero(sc->ciss_reply, reply_size);
924
925 sc->ciss_cycle = 0x1;
926 sc->ciss_rqidx = 0;
927
928 /*
929 * Preload the fetch table with common command sizes. This allows the
930 * hardware to not waste bus cycles for typical i/o commands, but also not
931 * tax the driver to be too exact in choosing sizes. The table is optimized
932 * for page-aligned i/o's, but since most i/o comes from the various pagers,
933 * it's a reasonable assumption to make.
934 */
935 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
936 pc->fetch_count[CISS_SG_FETCH_1] =
937 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
938 pc->fetch_count[CISS_SG_FETCH_2] =
939 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
940 pc->fetch_count[CISS_SG_FETCH_4] =
941 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
942 pc->fetch_count[CISS_SG_FETCH_8] =
943 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
944 pc->fetch_count[CISS_SG_FETCH_16] =
945 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
946 pc->fetch_count[CISS_SG_FETCH_32] =
947 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
948 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
949
950 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
951 pc->rq_count = 1; /* XXX Hardcode for a single queue */
952 pc->rq_bank_hi = 0;
953 pc->rq_bank_lo = 0;
954 pc->rq[0].rq_addr_hi = 0x0;
955 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
956
957 return(0);
958}
959
960/************************************************************************
961 * Wait for the adapter to come ready.
962 */
963static int
964ciss_wait_adapter(struct ciss_softc *sc)
965{
966 int i;
967
968 debug_called(1);
969
970 /*
971 * Wait for the adapter to come ready.
972 */
973 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
974 ciss_printf(sc, "waiting for adapter to come ready...\n");
975 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
976 DELAY(1000000); /* one second */
977 if (i > 30) {
978 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
979 return(EIO);
980 }
981 }
982 }
983 return(0);
984}
985
986/************************************************************************
987 * Flush the adapter cache.
988 */
989static int
990ciss_flush_adapter(struct ciss_softc *sc)
991{
992 struct ciss_request *cr;
993 struct ciss_bmic_flush_cache *cbfc;
994 int error, command_status;
995
996 debug_called(1);
997
998 cr = NULL;
999 cbfc = NULL;
1000
1001 /*
1002 * Build a BMIC request to flush the cache. We don't disable
1003 * it, as we may be going to do more I/O (eg. we are emulating
1004 * the Synchronise Cache command).
1005 */
1006 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1007 error = ENOMEM;
1008 goto out;
1009 }
1010 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1011 (void **)&cbfc, sizeof(*cbfc))) != 0)
1012 goto out;
1013
1014 /*
1015 * Submit the request and wait for it to complete.
1016 */
1017 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1018 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1019 goto out;
1020 }
1021
1022 /*
1023 * Check response.
1024 */
1025 ciss_report_request(cr, &command_status, NULL);
1026 switch(command_status) {
1027 case CISS_CMD_STATUS_SUCCESS:
1028 break;
1029 default:
1030 ciss_printf(sc, "error flushing cache (%s)\n",
1031 ciss_name_command_status(command_status));
1032 error = EIO;
1033 goto out;
1034 }
1035
1036out:
1037 if (cbfc != NULL)
1038 free(cbfc, CISS_MALLOC_CLASS);
1039 if (cr != NULL)
1040 ciss_release_request(cr);
1041 return(error);
1042}
1043
1044static void
1045ciss_soft_reset(struct ciss_softc *sc)
1046{
1047 struct ciss_request *cr = NULL;
1048 struct ciss_command *cc;
1049 int i, error = 0;
1050
1051 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1052 /* only reset proxy controllers */
1053 if (sc->ciss_controllers[i].physical.bus == 0)
1054 continue;
1055
1056 if ((error = ciss_get_request(sc, &cr)) != 0)
1057 break;
1058
1059 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1060 NULL, 0)) != 0)
1061 break;
1062
1063 cc = cr->cr_cc;
1064 cc->header.address = sc->ciss_controllers[i];
1065
1066 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1067 break;
1068
1069 ciss_release_request(cr);
1070 }
1071
1072 if (error)
1073 ciss_printf(sc, "error resetting controller (%d)\n", error);
1074
1075 if (cr != NULL)
1076 ciss_release_request(cr);
1077}
1078
1079/************************************************************************
1080 * Allocate memory for the adapter command structures, initialise
1081 * the request structures.
1082 *
1083 * Note that the entire set of commands are allocated in a single
1084 * contiguous slab.
1085 */
1086static int
1087ciss_init_requests(struct ciss_softc *sc)
1088{
1089 struct ciss_request *cr;
1090 int i;
1091
1092 debug_called(1);
1093
1094 if (bootverbose)
1095 ciss_printf(sc, "using %d of %d available commands\n",
1096 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1097
1098 /*
1099 * Create the DMA tag for commands.
1100 */
1101 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1102 32, 0, /* alignment, boundary */
1103 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1104 BUS_SPACE_MAXADDR, /* highaddr */
1105 NULL, NULL, /* filter, filterarg */
1106 CISS_COMMAND_ALLOC_SIZE *
1107 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1108 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1109 0, /* flags */
1110 NULL, NULL, /* lockfunc, lockarg */
1111 &sc->ciss_command_dmat)) {
1112 ciss_printf(sc, "can't allocate command DMA tag\n");
1113 return(ENOMEM);
1114 }
1115 /*
1116 * Allocate memory and make it available for DMA.
1117 */
1118 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1119 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1120 ciss_printf(sc, "can't allocate command memory\n");
1121 return(ENOMEM);
1122 }
1123 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1124 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1125 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1126 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1127
1128 /*
1129 * Set up the request and command structures, push requests onto
1130 * the free queue.
1131 */
1132 for (i = 1; i < sc->ciss_max_requests; i++) {
1133 cr = &sc->ciss_request[i];
1134 cr->cr_sc = sc;
1135 cr->cr_tag = i;
1136 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1137 CISS_COMMAND_ALLOC_SIZE * i);
1138 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1139 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1140 ciss_enqueue_free(cr);
1141 }
1142 return(0);
1143}
1144
1145static void
1146ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1147{
1148 uint32_t *addr;
1149
1150 addr = arg;
1151 *addr = segs[0].ds_addr;
1152}
1153
1154/************************************************************************
1155 * Identify the adapter, print some information about it.
1156 */
1157static int
1158ciss_identify_adapter(struct ciss_softc *sc)
1159{
1160 struct ciss_request *cr;
1161 int error, command_status;
1162
1163 debug_called(1);
1164
1165 cr = NULL;
1166
1167 /*
1168 * Get a request, allocate storage for the adapter data.
1169 */
1170 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1171 (void **)&sc->ciss_id,
1172 sizeof(*sc->ciss_id))) != 0)
1173 goto out;
1174
1175 /*
1176 * Submit the request and wait for it to complete.
1177 */
1178 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1179 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1180 goto out;
1181 }
1182
1183 /*
1184 * Check response.
1185 */
1186 ciss_report_request(cr, &command_status, NULL);
1187 switch(command_status) {
1188 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1189 break;
1190 case CISS_CMD_STATUS_DATA_UNDERRUN:
1191 case CISS_CMD_STATUS_DATA_OVERRUN:
1192 ciss_printf(sc, "data over/underrun reading adapter information\n");
1193 default:
1194 ciss_printf(sc, "error reading adapter information (%s)\n",
1195 ciss_name_command_status(command_status));
1196 error = EIO;
1197 goto out;
1198 }
1199
1200 /* sanity-check reply */
1201 if (!sc->ciss_id->big_map_supported) {
1202 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1203 error = ENXIO;
1204 goto out;
1205 }
1206
1207#if 0
1208 /* XXX later revisions may not need this */
1209 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1210#endif
1211
1212 /* XXX only really required for old 5300 adapters? */
1213 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1214
1215 /*
1216 * Earlier controller specs do not contain these config
1217 * entries, so assume that a 0 means its old and assign
1218 * these values to the defaults that were established
1219 * when this driver was developed for them
1220 */
1221 if (sc->ciss_cfg->max_logical_supported == 0)
1222 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1223 if (sc->ciss_cfg->max_physical_supported == 0)
1224 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1225 /* print information */
1226 if (bootverbose) {
1227 ciss_printf(sc, " %d logical drive%s configured\n",
1228 sc->ciss_id->configured_logical_drives,
1229 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1230 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1231 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
1232
1233 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1234 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1235 ciss_printf(sc, " supported I/O methods 0x%b\n",
1236 sc->ciss_cfg->supported_methods,
1237 "\20\1READY\2simple\3performant\4MEMQ\n");
1238 ciss_printf(sc, " active I/O method 0x%b\n",
1239 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1240 ciss_printf(sc, " 4G page base 0x%08x\n",
1241 sc->ciss_cfg->command_physlimit);
1242 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1243 sc->ciss_cfg->interrupt_coalesce_delay);
1244 ciss_printf(sc, " interrupt coalesce count %d\n",
1245 sc->ciss_cfg->interrupt_coalesce_count);
1246 ciss_printf(sc, " max outstanding commands %d\n",
1247 sc->ciss_cfg->max_outstanding_commands);
1248 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1249 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1250 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1251 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1252 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1253 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1254 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1255 }
1256
1257out:
1258 if (error) {
1259 if (sc->ciss_id != NULL) {
1260 free(sc->ciss_id, CISS_MALLOC_CLASS);
1261 sc->ciss_id = NULL;
1262 }
1263 }
1264 if (cr != NULL)
1265 ciss_release_request(cr);
1266 return(error);
1267}
1268
1269/************************************************************************
1270 * Helper routine for generating a list of logical and physical luns.
1271 */
1272static struct ciss_lun_report *
1273ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1274{
1275 struct ciss_request *cr;
1276 struct ciss_command *cc;
1277 struct ciss_report_cdb *crc;
1278 struct ciss_lun_report *cll;
1279 int command_status;
1280 int report_size;
1281 int error = 0;
1282
1283 debug_called(1);
1284
1285 cr = NULL;
1286 cll = NULL;
1287
1288 /*
1289 * Get a request, allocate storage for the address list.
1290 */
1291 if ((error = ciss_get_request(sc, &cr)) != 0)
1292 goto out;
1293 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1294 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1295 ciss_printf(sc, "can't allocate memory for lun report\n");
1296 error = ENOMEM;
1297 goto out;
1298 }
1299
1300 /*
1301 * Build the Report Logical/Physical LUNs command.
1302 */
1303 cc = cr->cr_cc;
1304 cr->cr_data = cll;
1305 cr->cr_length = report_size;
1306 cr->cr_flags = CISS_REQ_DATAIN;
1307
1308 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1309 cc->header.address.physical.bus = 0;
1310 cc->header.address.physical.target = 0;
1311 cc->cdb.cdb_length = sizeof(*crc);
1312 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1313 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1314 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1315 cc->cdb.timeout = 30; /* XXX better suggestions? */
1316
1317 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1318 bzero(crc, sizeof(*crc));
1319 crc->opcode = opcode;
1320 crc->length = htonl(report_size); /* big-endian field */
1321 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1322
1323 /*
1324 * Submit the request and wait for it to complete. (timeout
1325 * here should be much greater than above)
1326 */
1327 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1328 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1329 goto out;
1330 }
1331
1332 /*
1333 * Check response. Note that data over/underrun is OK.
1334 */
1335 ciss_report_request(cr, &command_status, NULL);
1336 switch(command_status) {
1337 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1338 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1339 break;
1340 case CISS_CMD_STATUS_DATA_OVERRUN:
1341 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1342 sc->ciss_cfg->max_logical_supported);
1343 break;
1344 default:
1345 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1346 ciss_name_command_status(command_status));
1347 error = EIO;
1348 goto out;
1349 }
1350 ciss_release_request(cr);
1351 cr = NULL;
1352
1353out:
1354 if (cr != NULL)
1355 ciss_release_request(cr);
1356 if (error && cll != NULL) {
1357 free(cll, CISS_MALLOC_CLASS);
1358 cll = NULL;
1359 }
1360 return(cll);
1361}
1362
1363/************************************************************************
1364 * Find logical drives on the adapter.
1365 */
1366static int
1367ciss_init_logical(struct ciss_softc *sc)
1368{
1369 struct ciss_lun_report *cll;
1370 int error = 0, i, j;
1371 int ndrives;
1372
1373 debug_called(1);
1374
1375 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1376 sc->ciss_cfg->max_logical_supported);
1377 if (cll == NULL) {
1378 error = ENXIO;
1379 goto out;
1380 }
1381
1382 /* sanity-check reply */
1383 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1384 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1385 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1386 ndrives, sc->ciss_cfg->max_logical_supported);
1387 error = ENXIO;
1388 goto out;
1389 }
1390
1391 /*
1392 * Save logical drive information.
1393 */
1394 if (bootverbose) {
1395 ciss_printf(sc, "%d logical drive%s\n",
1396 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1397 }
1398
1399 sc->ciss_logical =
1400 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1401 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1402 if (sc->ciss_logical == NULL) {
1403 error = ENXIO;
1404 goto out;
1405 }
1406
1407 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
1408 sc->ciss_logical[i] =
1409 malloc(sc->ciss_cfg->max_logical_supported *
1410 sizeof(struct ciss_ldrive),
1411 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1412 if (sc->ciss_logical[i] == NULL) {
1413 error = ENXIO;
1414 goto out;
1415 }
1416
1417 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1418 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1419 }
1420
1421
1422 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1423 if (i < ndrives) {
1424 struct ciss_ldrive *ld;
1425 int bus, target;
1426
1427 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1428 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1429 ld = &sc->ciss_logical[bus][target];
1430
1431 ld->cl_address = cll->lun[i];
1432 ld->cl_controller = &sc->ciss_controllers[bus];
1433 if (ciss_identify_logical(sc, ld) != 0)
1434 continue;
1435 /*
1436 * If the drive has had media exchanged, we should bring it online.
1437 */
1438 if (ld->cl_lstatus->media_exchanged)
1439 ciss_accept_media(sc, ld);
1440
1441 }
1442 }
1443
1444 out:
1445 if (cll != NULL)
1446 free(cll, CISS_MALLOC_CLASS);
1447 return(error);
1448}
1449
1450static int
1451ciss_init_physical(struct ciss_softc *sc)
1452{
1453 struct ciss_lun_report *cll;
1454 int error = 0, i;
1455 int nphys;
1456 int bus, target;
1457
1458 debug_called(1);
1459
1460 bus = 0;
1461 target = 0;
1462
1463 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1464 sc->ciss_cfg->max_physical_supported);
1465 if (cll == NULL) {
1466 error = ENXIO;
1467 goto out;
1468 }
1469
1470 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1471
1472 if (bootverbose) {
1473 ciss_printf(sc, "%d physical device%s\n",
1474 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1475 }
1476
1477 /*
1478 * Figure out the bus mapping.
1479 * Logical buses include both the local logical bus for local arrays and
1480 * proxy buses for remote arrays. Physical buses are numbered by the
1481 * controller and represent physical buses that hold physical devices.
1482 * We shift these bus numbers so that everything fits into a single flat
1483 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1484 * numbers, and the physical bus numbers are shifted to be above that.
1485 * This results in the various driver arrays being indexed as follows:
1486 *
1487 * ciss_controllers[] - indexed by logical bus
1488 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1489 * being shifted by 32.
1490 * ciss_logical[][] - indexed by logical bus
1491 * ciss_physical[][] - indexed by physical bus
1492 *
1493 * XXX This is getting more and more hackish. CISS really doesn't play
1494 * well with a standard SCSI model; devices are addressed via magic
1495 * cookies, not via b/t/l addresses. Since there is no way to store
1496 * the cookie in the CAM device object, we have to keep these lookup
1497 * tables handy so that the devices can be found quickly at the cost
1498 * of wasting memory and having a convoluted lookup scheme. This
1499 * driver should probably be converted to block interface.
1500 */
1501 /*
1502 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1503 * controller. A proxy controller is another physical controller
1504 * behind the primary PCI controller. We need to know about this
1505 * so that BMIC commands can be properly targeted. There can be
1506 * proxy controllers attached to a single PCI controller, so
1507 * find the highest numbered one so the array can be properly
1508 * sized.
1509 */
1510 sc->ciss_max_logical_bus = 1;
1511 for (i = 0; i < nphys; i++) {
1512 if (cll->lun[i].physical.extra_address == 0) {
1513 bus = cll->lun[i].physical.bus;
1514 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1515 } else {
1516 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1517 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1518 }
1519 }
1520
1521 sc->ciss_controllers =
1522 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1523 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1524
1525 if (sc->ciss_controllers == NULL) {
1526 ciss_printf(sc, "Could not allocate memory for controller map\n");
1527 error = ENOMEM;
1528 goto out;
1529 }
1530
1531 /* setup a map of controller addresses */
1532 for (i = 0; i < nphys; i++) {
1533 if (cll->lun[i].physical.extra_address == 0) {
1534 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1535 }
1536 }
1537
1538 sc->ciss_physical =
1539 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1540 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1541 if (sc->ciss_physical == NULL) {
1542 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1543 error = ENOMEM;
1544 goto out;
1545 }
1546
1547 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1548 sc->ciss_physical[i] =
1549 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1550 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1551 if (sc->ciss_physical[i] == NULL) {
1552 ciss_printf(sc, "Could not allocate memory for target map\n");
1553 error = ENOMEM;
1554 goto out;
1555 }
1556 }
1557
1558 ciss_filter_physical(sc, cll);
1559
1560out:
1561 if (cll != NULL)
1562 free(cll, CISS_MALLOC_CLASS);
1563
1564 return(error);
1565}
1566
1567static int
1568ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1569{
1570 u_int32_t ea;
1571 int i, nphys;
1572 int bus, target;
1573
1574 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1575 for (i = 0; i < nphys; i++) {
1576 if (cll->lun[i].physical.extra_address == 0)
1577 continue;
1578
1579 /*
1580 * Filter out devices that we don't want. Level 3 LUNs could
1581 * probably be supported, but the docs don't give enough of a
1582 * hint to know how.
1583 *
1584 * The mode field of the physical address is likely set to have
1585 * hard disks masked out. Honor it unless the user has overridden
1586 * us with the tunable. We also munge the inquiry data for these
1587 * disks so that they only show up as passthrough devices. Keeping
1588 * them visible in this fashion is useful for doing things like
1589 * flashing firmware.
1590 */
1591 ea = cll->lun[i].physical.extra_address;
1592 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1593 (CISS_EXTRA_MODE2(ea) == 0x3))
1594 continue;
1595 if ((ciss_expose_hidden_physical == 0) &&
1596 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1597 continue;
1598
1599 /*
1600 * Note: CISS firmware numbers physical busses starting at '1', not
1601 * '0'. This numbering is internal to the firmware and is only
1602 * used as a hint here.
1603 */
1604 bus = CISS_EXTRA_BUS2(ea) - 1;
1605 target = CISS_EXTRA_TARGET2(ea);
1606 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1607 sc->ciss_physical[bus][target].cp_online = 1;
1608 }
1609
1610 return (0);
1611}
1612
1613static int
1614ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1615{
1616 struct ciss_request *cr;
1617 struct ciss_command *cc;
1618 struct scsi_inquiry *inq;
1619 int error;
1620 int command_status;
1621
1622 cr = NULL;
1623
1624 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1625
1626 if ((error = ciss_get_request(sc, &cr)) != 0)
1627 goto out;
1628
1629 cc = cr->cr_cc;
1630 cr->cr_data = &ld->cl_geometry;
1631 cr->cr_length = sizeof(ld->cl_geometry);
1632 cr->cr_flags = CISS_REQ_DATAIN;
1633
1634 cc->header.address = ld->cl_address;
1635 cc->cdb.cdb_length = 6;
1636 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1637 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1638 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1639 cc->cdb.timeout = 30;
1640
1641 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1642 inq->opcode = INQUIRY;
1643 inq->byte2 = SI_EVPD;
1644 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1645 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1646
1647 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1648 ciss_printf(sc, "error getting geometry (%d)\n", error);
1649 goto out;
1650 }
1651
1652 ciss_report_request(cr, &command_status, NULL);
1653 switch(command_status) {
1654 case CISS_CMD_STATUS_SUCCESS:
1655 case CISS_CMD_STATUS_DATA_UNDERRUN:
1656 break;
1657 case CISS_CMD_STATUS_DATA_OVERRUN:
1658 ciss_printf(sc, "WARNING: Data overrun\n");
1659 break;
1660 default:
1661 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1662 ciss_name_command_status(command_status));
1663 break;
1664 }
1665
1666out:
1667 if (cr != NULL)
1668 ciss_release_request(cr);
1669 return(error);
1670}
1671/************************************************************************
1672 * Identify a logical drive, initialise state related to it.
1673 */
1674static int
1675ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1676{
1677 struct ciss_request *cr;
1678 struct ciss_command *cc;
1679 struct ciss_bmic_cdb *cbc;
1680 int error, command_status;
1681
1682 debug_called(1);
1683
1684 cr = NULL;
1685
1686 /*
1687 * Build a BMIC request to fetch the drive ID.
1688 */
1689 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1690 (void **)&ld->cl_ldrive,
1691 sizeof(*ld->cl_ldrive))) != 0)
1692 goto out;
1693 cc = cr->cr_cc;
1694 cc->header.address = *ld->cl_controller; /* target controller */
1695 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1696 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1697
1698 /*
1699 * Submit the request and wait for it to complete.
1700 */
1701 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1702 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1703 goto out;
1704 }
1705
1706 /*
1707 * Check response.
1708 */
1709 ciss_report_request(cr, &command_status, NULL);
1710 switch(command_status) {
1711 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1712 break;
1713 case CISS_CMD_STATUS_DATA_UNDERRUN:
1714 case CISS_CMD_STATUS_DATA_OVERRUN:
1715 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1716 default:
1717 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1718 ciss_name_command_status(command_status));
1719 error = EIO;
1720 goto out;
1721 }
1722 ciss_release_request(cr);
1723 cr = NULL;
1724
1725 /*
1726 * Build a CISS BMIC command to get the logical drive status.
1727 */
1728 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1729 goto out;
1730
1731 /*
1732 * Get the logical drive geometry.
1733 */
1734 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1735 goto out;
1736
1737 /*
1738 * Print the drive's basic characteristics.
1739 */
1740 if (bootverbose) {
1741 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1742 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1743 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1744 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1745 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1746 ld->cl_ldrive->block_size));
1747
1748 ciss_print_ldrive(sc, ld);
1749 }
1750out:
1751 if (error != 0) {
1752 /* make the drive not-exist */
1753 ld->cl_status = CISS_LD_NONEXISTENT;
1754 if (ld->cl_ldrive != NULL) {
1755 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1756 ld->cl_ldrive = NULL;
1757 }
1758 if (ld->cl_lstatus != NULL) {
1759 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1760 ld->cl_lstatus = NULL;
1761 }
1762 }
1763 if (cr != NULL)
1764 ciss_release_request(cr);
1765
1766 return(error);
1767}
1768
1769/************************************************************************
1770 * Get status for a logical drive.
1771 *
1772 * XXX should we also do this in response to Test Unit Ready?
1773 */
1774static int
1775ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1776{
1777 struct ciss_request *cr;
1778 struct ciss_command *cc;
1779 struct ciss_bmic_cdb *cbc;
1780 int error, command_status;
1781
1782 /*
1783 * Build a CISS BMIC command to get the logical drive status.
1784 */
1785 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1786 (void **)&ld->cl_lstatus,
1787 sizeof(*ld->cl_lstatus))) != 0)
1788 goto out;
1789 cc = cr->cr_cc;
1790 cc->header.address = *ld->cl_controller; /* target controller */
1791 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1792 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1793
1794 /*
1795 * Submit the request and wait for it to complete.
1796 */
1797 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1798 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1799 goto out;
1800 }
1801
1802 /*
1803 * Check response.
1804 */
1805 ciss_report_request(cr, &command_status, NULL);
1806 switch(command_status) {
1807 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1808 break;
1809 case CISS_CMD_STATUS_DATA_UNDERRUN:
1810 case CISS_CMD_STATUS_DATA_OVERRUN:
1811 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1812 default:
1813 ciss_printf(sc, "error reading logical drive status (%s)\n",
1814 ciss_name_command_status(command_status));
1815 error = EIO;
1816 goto out;
1817 }
1818
1819 /*
1820 * Set the drive's summary status based on the returned status.
1821 *
1822 * XXX testing shows that a failed JBOD drive comes back at next
1823 * boot in "queued for expansion" mode. WTF?
1824 */
1825 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1826
1827out:
1828 if (cr != NULL)
1829 ciss_release_request(cr);
1830 return(error);
1831}
1832
1833/************************************************************************
1834 * Notify the adapter of a config update.
1835 */
1836static int
1837ciss_update_config(struct ciss_softc *sc)
1838{
1839 int i;
1840
1841 debug_called(1);
1842
1843 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1844 for (i = 0; i < 1000; i++) {
1845 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1846 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1847 return(0);
1848 }
1849 DELAY(1000);
1850 }
1851 return(1);
1852}
1853
1854/************************************************************************
1855 * Accept new media into a logical drive.
1856 *
1857 * XXX The drive has previously been offline; it would be good if we
1858 * could make sure it's not open right now.
1859 */
1860static int
1861ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1862{
1863 struct ciss_request *cr;
1864 struct ciss_command *cc;
1865 struct ciss_bmic_cdb *cbc;
1866 int command_status;
1867 int error = 0, ldrive;
1868
1869 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1870
1871 debug(0, "bringing logical drive %d back online", ldrive);
1872
1873 /*
1874 * Build a CISS BMIC command to bring the drive back online.
1875 */
1876 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1877 NULL, 0)) != 0)
1878 goto out;
1879 cc = cr->cr_cc;
1880 cc->header.address = *ld->cl_controller; /* target controller */
1881 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1882 cbc->log_drive = ldrive;
1883
1884 /*
1885 * Submit the request and wait for it to complete.
1886 */
1887 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1888 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1889 goto out;
1890 }
1891
1892 /*
1893 * Check response.
1894 */
1895 ciss_report_request(cr, &command_status, NULL);
1896 switch(command_status) {
1897 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1898 /* we should get a logical drive status changed event here */
1899 break;
1900 default:
1901 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1902 ciss_name_command_status(command_status));
1903 break;
1904 }
1905
1906out:
1907 if (cr != NULL)
1908 ciss_release_request(cr);
1909 return(error);
1910}
1911
1912/************************************************************************
1913 * Release adapter resources.
1914 */
1915static void
1916ciss_free(struct ciss_softc *sc)
1917{
1918 struct ciss_request *cr;
1919 int i, j;
1920
1921 debug_called(1);
1922
1923 /* we're going away */
1924 sc->ciss_flags |= CISS_FLAG_ABORTING;
1925
1926 /* terminate the periodic heartbeat routine */
1927 callout_stop(&sc->ciss_periodic);
1928
1929 /* cancel the Event Notify chain */
1930 ciss_notify_abort(sc);
1931
1932 ciss_kill_notify_thread(sc);
1933
1934 /* disconnect from CAM */
1935 if (sc->ciss_cam_sim) {
1936 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1937 if (sc->ciss_cam_sim[i]) {
1938 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1939 cam_sim_free(sc->ciss_cam_sim[i], 0);
1940 }
1941 }
1942 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1943 CISS_PHYSICAL_BASE; i++) {
1944 if (sc->ciss_cam_sim[i]) {
1945 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1946 cam_sim_free(sc->ciss_cam_sim[i], 0);
1947 }
1948 }
1949 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1950 }
1951 if (sc->ciss_cam_devq)
1952 cam_simq_free(sc->ciss_cam_devq);
1953
1954 /* remove the control device */
1955 mtx_unlock(&sc->ciss_mtx);
1956 if (sc->ciss_dev_t != NULL)
1957 destroy_dev(sc->ciss_dev_t);
1958
1959 /* Final cleanup of the callout. */
1960 callout_drain(&sc->ciss_periodic);
1961 mtx_destroy(&sc->ciss_mtx);
1962
1963 /* free the controller data */
1964 if (sc->ciss_id != NULL)
1965 free(sc->ciss_id, CISS_MALLOC_CLASS);
1966
1967 /* release I/O resources */
1968 if (sc->ciss_regs_resource != NULL)
1969 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1970 sc->ciss_regs_rid, sc->ciss_regs_resource);
1971 if (sc->ciss_cfg_resource != NULL)
1972 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1973 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1974 if (sc->ciss_intr != NULL)
1975 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1976 if (sc->ciss_irq_resource != NULL)
1977 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1978 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
1979 if (sc->ciss_msi)
1980 pci_release_msi(sc->ciss_dev);
1981
1982 while ((cr = ciss_dequeue_free(sc)) != NULL)
1983 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
1984 if (sc->ciss_buffer_dmat)
1985 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1986
1987 /* destroy command memory and DMA tag */
1988 if (sc->ciss_command != NULL) {
1989 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1990 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1991 }
1992 if (sc->ciss_command_dmat)
1993 bus_dma_tag_destroy(sc->ciss_command_dmat);
1994
1995 if (sc->ciss_reply) {
1996 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
1997 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
1998 }
1999 if (sc->ciss_reply_dmat)
2000 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2001
2002 /* destroy DMA tags */
2003 if (sc->ciss_parent_dmat)
2004 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2005 if (sc->ciss_logical) {
2006 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
2007 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2008 if (sc->ciss_logical[i][j].cl_ldrive)
2009 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2010 if (sc->ciss_logical[i][j].cl_lstatus)
2011 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2012 }
2013 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2014 }
2015 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2016 }
2017
2018 if (sc->ciss_physical) {
2019 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2020 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2021 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2022 }
2023
2024 if (sc->ciss_controllers)
2025 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2026
2027}
2028
2029/************************************************************************
2030 * Give a command to the adapter.
2031 *
2032 * Note that this uses the simple transport layer directly. If we
2033 * want to add support for other layers, we'll need a switch of some
2034 * sort.
2035 *
2036 * Note that the simple transport layer has no way of refusing a
2037 * command; we only have as many request structures as the adapter
2038 * supports commands, so we don't have to check (this presumes that
2039 * the adapter can handle commands as fast as we throw them at it).
2040 */
2041static int
2042ciss_start(struct ciss_request *cr)
2043{
2044 struct ciss_command *cc; /* XXX debugging only */
2045 int error;
2046
2047 cc = cr->cr_cc;
2048 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2049
2050 /*
2051 * Map the request's data.
2052 */
2053 if ((error = ciss_map_request(cr)))
2054 return(error);
2055
2056#if 0
2057 ciss_print_request(cr);
2058#endif
2059
2060 return(0);
2061}
2062
2063/************************************************************************
2064 * Fetch completed request(s) from the adapter, queue them for
2065 * completion handling.
2066 *
2067 * Note that this uses the simple transport layer directly. If we
2068 * want to add support for other layers, we'll need a switch of some
2069 * sort.
2070 *
2071 * Note that the simple transport mechanism does not require any
2072 * reentrancy protection; the OPQ read is atomic. If there is a
2073 * chance of a race with something else that might move the request
2074 * off the busy list, then we will have to lock against that
2075 * (eg. timeouts, etc.)
2076 */
2077static void
2078ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2079{
2080 struct ciss_request *cr;
2081 struct ciss_command *cc;
2082 u_int32_t tag, index;
2083
2084 debug_called(3);
2085
2086 /*
2087 * Loop quickly taking requests from the adapter and moving them
2088 * to the completed queue.
2089 */
2090 for (;;) {
2091
2092 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2093 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2094 break;
2095 index = tag >> 2;
2096 debug(2, "completed command %d%s", index,
2097 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2098 if (index >= sc->ciss_max_requests) {
2099 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2100 continue;
2101 }
2102 cr = &(sc->ciss_request[index]);
2103 cc = cr->cr_cc;
2104 cc->header.host_tag = tag; /* not updated by adapter */
2105 ciss_enqueue_complete(cr, qh);
2106 }
2107
2108}
2109
2110static void
2111ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2112{
2113 struct ciss_request *cr;
2114 struct ciss_command *cc;
2115 u_int32_t tag, index;
2116
2117 debug_called(3);
2118
2119 /*
2120 * Loop quickly taking requests from the adapter and moving them
2121 * to the completed queue.
2122 */
2123 for (;;) {
2124 tag = sc->ciss_reply[sc->ciss_rqidx];
2125 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2126 break;
2127 index = tag >> 2;
2128 debug(2, "completed command %d%s\n", index,
2129 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2130 if (index < sc->ciss_max_requests) {
2131 cr = &(sc->ciss_request[index]);
2132 cc = cr->cr_cc;
2133 cc->header.host_tag = tag; /* not updated by adapter */
2134 ciss_enqueue_complete(cr, qh);
2135 } else {
2136 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2137 }
2138 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2139 sc->ciss_rqidx = 0;
2140 sc->ciss_cycle ^= 1;
2141 }
2142 }
2143
2144}
2145
2146/************************************************************************
2147 * Take an interrupt from the adapter.
2148 */
2149static void
2150ciss_intr(void *arg)
2151{
2152 cr_qhead_t qh;
2153 struct ciss_softc *sc = (struct ciss_softc *)arg;
2154
2155 /*
2156 * The only interrupt we recognise indicates that there are
2157 * entries in the outbound post queue.
2158 */
2159 STAILQ_INIT(&qh);
2160 ciss_done(sc, &qh);
2161 mtx_lock(&sc->ciss_mtx);
2162 ciss_complete(sc, &qh);
2163 mtx_unlock(&sc->ciss_mtx);
2164}
2165
2166static void
2167ciss_perf_intr(void *arg)
2168{
2169 struct ciss_softc *sc = (struct ciss_softc *)arg;
2170
2171 /* Clear the interrupt and flush the bridges. Docs say that the flush
2172 * needs to be done twice, which doesn't seem right.
2173 */
2174 CISS_TL_PERF_CLEAR_INT(sc);
2175 CISS_TL_PERF_FLUSH_INT(sc);
2176
2177 ciss_perf_msi_intr(sc);
2178}
2179
2180static void
2181ciss_perf_msi_intr(void *arg)
2182{
2183 cr_qhead_t qh;
2184 struct ciss_softc *sc = (struct ciss_softc *)arg;
2185
2186 STAILQ_INIT(&qh);
2187 ciss_perf_done(sc, &qh);
2188 mtx_lock(&sc->ciss_mtx);
2189 ciss_complete(sc, &qh);
2190 mtx_unlock(&sc->ciss_mtx);
2191}
2192
2193
2194/************************************************************************
2195 * Process completed requests.
2196 *
2197 * Requests can be completed in three fashions:
2198 *
2199 * - by invoking a callback function (cr_complete is non-null)
2200 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2201 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2202 */
2203static void
2204ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2205{
2206 struct ciss_request *cr;
2207
2208 debug_called(2);
2209
2210 /*
2211 * Loop taking requests off the completed queue and performing
2212 * completion processing on them.
2213 */
2214 for (;;) {
2215 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2216 break;
2217 ciss_unmap_request(cr);
2218
2219 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2220 ciss_printf(sc, "WARNING: completing non-busy request\n");
2221 cr->cr_flags &= ~CISS_REQ_BUSY;
2222
2223 /*
2224 * If the request has a callback, invoke it.
2225 */
2226 if (cr->cr_complete != NULL) {
2227 cr->cr_complete(cr);
2228 continue;
2229 }
2230
2231 /*
2232 * If someone is sleeping on this request, wake them up.
2233 */
2234 if (cr->cr_flags & CISS_REQ_SLEEP) {
2235 cr->cr_flags &= ~CISS_REQ_SLEEP;
2236 wakeup(cr);
2237 continue;
2238 }
2239
2240 /*
2241 * If someone is polling this request for completion, signal.
2242 */
2243 if (cr->cr_flags & CISS_REQ_POLL) {
2244 cr->cr_flags &= ~CISS_REQ_POLL;
2245 continue;
2246 }
2247
2248 /*
2249 * Give up and throw the request back on the free queue. This
2250 * should never happen; resources will probably be lost.
2251 */
2252 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2253 ciss_enqueue_free(cr);
2254 }
2255}
2256
2257/************************************************************************
2258 * Report on the completion status of a request, and pass back SCSI
2259 * and command status values.
2260 */
2261static int
2262_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2263{
2264 struct ciss_command *cc;
2265 struct ciss_error_info *ce;
2266
2267 debug_called(2);
2268
2269 cc = cr->cr_cc;
2270 ce = (struct ciss_error_info *)&(cc->sg[0]);
2271
2272 /*
2273 * We don't consider data under/overrun an error for the Report
2274 * Logical/Physical LUNs commands.
2275 */
2276 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2277 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2278 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2279 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2280 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2281 (cc->cdb.cdb[0] == INQUIRY))) {
2282 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2283 debug(2, "ignoring irrelevant under/overrun error");
2284 }
2285
2286 /*
2287 * Check the command's error bit, if clear, there's no status and
2288 * everything is OK.
2289 */
2290 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2291 if (scsi_status != NULL)
2292 *scsi_status = SCSI_STATUS_OK;
2293 if (command_status != NULL)
2294 *command_status = CISS_CMD_STATUS_SUCCESS;
2295 return(0);
2296 } else {
2297 if (command_status != NULL)
2298 *command_status = ce->command_status;
2299 if (scsi_status != NULL) {
2300 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2301 *scsi_status = ce->scsi_status;
2302 } else {
2303 *scsi_status = -1;
2304 }
2305 }
2306 if (bootverbose)
2307 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2308 ce->command_status, ciss_name_command_status(ce->command_status),
2309 ce->scsi_status);
2310 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2311 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2312 ce->additional_error_info.invalid_command.offense_size,
2313 ce->additional_error_info.invalid_command.offense_offset,
2314 ce->additional_error_info.invalid_command.offense_value,
2315 func);
2316 }
2317 }
2318#if 0
2319 ciss_print_request(cr);
2320#endif
2321 return(1);
2322}
2323
2324/************************************************************************
2325 * Issue a request and don't return until it's completed.
2326 *
2327 * Depending on adapter status, we may poll or sleep waiting for
2328 * completion.
2329 */
2330static int
2331ciss_synch_request(struct ciss_request *cr, int timeout)
2332{
2333 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2334 return(ciss_wait_request(cr, timeout));
2335 } else {
2336 return(ciss_poll_request(cr, timeout));
2337 }
2338}
2339
2340/************************************************************************
2341 * Issue a request and poll for completion.
2342 *
2343 * Timeout in milliseconds.
2344 */
2345static int
2346ciss_poll_request(struct ciss_request *cr, int timeout)
2347{
2348 cr_qhead_t qh;
2349 struct ciss_softc *sc;
2350 int error;
2351
2352 debug_called(2);
2353
2354 STAILQ_INIT(&qh);
2355 sc = cr->cr_sc;
2356 cr->cr_flags |= CISS_REQ_POLL;
2357 if ((error = ciss_start(cr)) != 0)
2358 return(error);
2359
2360 do {
2361 if (sc->ciss_perf)
2362 ciss_perf_done(sc, &qh);
2363 else
2364 ciss_done(sc, &qh);
2365 ciss_complete(sc, &qh);
2366 if (!(cr->cr_flags & CISS_REQ_POLL))
2367 return(0);
2368 DELAY(1000);
2369 } while (timeout-- >= 0);
2370 return(EWOULDBLOCK);
2371}
2372
2373/************************************************************************
2374 * Issue a request and sleep waiting for completion.
2375 *
2376 * Timeout in milliseconds. Note that a spurious wakeup will reset
2377 * the timeout.
2378 */
2379static int
2380ciss_wait_request(struct ciss_request *cr, int timeout)
2381{
2382 int error;
2383
2384 debug_called(2);
2385
2386 cr->cr_flags |= CISS_REQ_SLEEP;
2387 if ((error = ciss_start(cr)) != 0)
2388 return(error);
2389
2390 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2391 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000);
2392 }
2393 return(error);
2394}
2395
2396#if 0
2397/************************************************************************
2398 * Abort a request. Note that a potential exists here to race the
2399 * request being completed; the caller must deal with this.
2400 */
2401static int
2402ciss_abort_request(struct ciss_request *ar)
2403{
2404 struct ciss_request *cr;
2405 struct ciss_command *cc;
2406 struct ciss_message_cdb *cmc;
2407 int error;
2408
2409 debug_called(1);
2410
2411 /* get a request */
2412 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2413 return(error);
2414
2415 /* build the abort command */
2416 cc = cr->cr_cc;
2417 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2418 cc->header.address.physical.target = 0;
2419 cc->header.address.physical.bus = 0;
2420 cc->cdb.cdb_length = sizeof(*cmc);
2421 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2422 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2423 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2424 cc->cdb.timeout = 30;
2425
2426 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2427 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2428 cmc->type = CISS_MESSAGE_ABORT_TASK;
2429 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2430
2431 /*
2432 * Send the request and wait for a response. If we believe we
2433 * aborted the request OK, clear the flag that indicates it's
2434 * running.
2435 */
2436 error = ciss_synch_request(cr, 35 * 1000);
2437 if (!error)
2438 error = ciss_report_request(cr, NULL, NULL);
2439 ciss_release_request(cr);
2440
2441 return(error);
2442}
2443#endif
2444
2445
2446/************************************************************************
2447 * Fetch and initialise a request
2448 */
2449static int
2450ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2451{
2452 struct ciss_request *cr;
2453
2454 debug_called(2);
2455
2456 /*
2457 * Get a request and clean it up.
2458 */
2459 if ((cr = ciss_dequeue_free(sc)) == NULL)
2460 return(ENOMEM);
2461
2462 cr->cr_data = NULL;
2463 cr->cr_flags = 0;
2464 cr->cr_complete = NULL;
2465 cr->cr_private = NULL;
2466 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2467
2468 ciss_preen_command(cr);
2469 *crp = cr;
2470 return(0);
2471}
2472
2473static void
2474ciss_preen_command(struct ciss_request *cr)
2475{
2476 struct ciss_command *cc;
2477 u_int32_t cmdphys;
2478
2479 /*
2480 * Clean up the command structure.
2481 *
2482 * Note that we set up the error_info structure here, since the
2483 * length can be overwritten by any command.
2484 */
2485 cc = cr->cr_cc;
2486 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2487 cc->header.sg_total = 0;
2488 cc->header.host_tag = cr->cr_tag << 2;
2489 cc->header.host_tag_zeroes = 0;
2490 cmdphys = cr->cr_ccphys;
2491 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2492 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2493}
2494
2495/************************************************************************
2496 * Release a request to the free list.
2497 */
2498static void
2499ciss_release_request(struct ciss_request *cr)
2500{
2501 struct ciss_softc *sc;
2502
2503 debug_called(2);
2504
2505 sc = cr->cr_sc;
2506
2507 /* release the request to the free queue */
2508 ciss_requeue_free(cr);
2509}
2510
2511/************************************************************************
2512 * Allocate a request that will be used to send a BMIC command. Do some
2513 * of the common setup here to avoid duplicating it everywhere else.
2514 */
2515static int
2516ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2517 int opcode, void **bufp, size_t bufsize)
2518{
2519 struct ciss_request *cr;
2520 struct ciss_command *cc;
2521 struct ciss_bmic_cdb *cbc;
2522 void *buf;
2523 int error;
2524 int dataout;
2525
2526 debug_called(2);
2527
2528 cr = NULL;
2529 buf = NULL;
2530
2531 /*
2532 * Get a request.
2533 */
2534 if ((error = ciss_get_request(sc, &cr)) != 0)
2535 goto out;
2536
2537 /*
2538 * Allocate data storage if requested, determine the data direction.
2539 */
2540 dataout = 0;
2541 if ((bufsize > 0) && (bufp != NULL)) {
2542 if (*bufp == NULL) {
2543 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2544 error = ENOMEM;
2545 goto out;
2546 }
2547 } else {
2548 buf = *bufp;
2549 dataout = 1; /* we are given a buffer, so we are writing */
2550 }
2551 }
2552
2553 /*
2554 * Build a CISS BMIC command to get the logical drive ID.
2555 */
2556 cr->cr_data = buf;
2557 cr->cr_length = bufsize;
2558 if (!dataout)
2559 cr->cr_flags = CISS_REQ_DATAIN;
2560
2561 cc = cr->cr_cc;
2562 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2563 cc->header.address.physical.bus = 0;
2564 cc->header.address.physical.target = 0;
2565 cc->cdb.cdb_length = sizeof(*cbc);
2566 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2567 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2568 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2569 cc->cdb.timeout = 0;
2570
2571 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2572 bzero(cbc, sizeof(*cbc));
2573 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2574 cbc->bmic_opcode = opcode;
2575 cbc->size = htons((u_int16_t)bufsize);
2576
2577out:
2578 if (error) {
2579 if (cr != NULL)
2580 ciss_release_request(cr);
2581 } else {
2582 *crp = cr;
2583 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2584 *bufp = buf;
2585 }
2586 return(error);
2587}
2588
2589/************************************************************************
2590 * Handle a command passed in from userspace.
2591 */
2592static int
2593ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2594{
2595 struct ciss_request *cr;
2596 struct ciss_command *cc;
2597 struct ciss_error_info *ce;
2598 int error = 0;
2599
2600 debug_called(1);
2601
2602 cr = NULL;
2603
2604 /*
2605 * Get a request.
2606 */
2607 while (ciss_get_request(sc, &cr) != 0)
2608 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2609 cc = cr->cr_cc;
2610
2611 /*
2612 * Allocate an in-kernel databuffer if required, copy in user data.
2613 */
2614 mtx_unlock(&sc->ciss_mtx);
2615 cr->cr_length = ioc->buf_size;
2616 if (ioc->buf_size > 0) {
2617 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2618 error = ENOMEM;
2619 goto out_unlocked;
2620 }
2621 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2622 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2623 goto out_unlocked;
2624 }
2625 }
2626
2627 /*
2628 * Build the request based on the user command.
2629 */
2630 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2631 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2632
2633 /* XXX anything else to populate here? */
2634 mtx_lock(&sc->ciss_mtx);
2635
2636 /*
2637 * Run the command.
2638 */
2639 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2640 debug(0, "request failed - %d", error);
2641 goto out;
2642 }
2643
2644 /*
2645 * Check to see if the command succeeded.
2646 */
2647 ce = (struct ciss_error_info *)&(cc->sg[0]);
2648 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2649 bzero(ce, sizeof(*ce));
2650
2651 /*
2652 * Copy the results back to the user.
2653 */
2654 bcopy(ce, &ioc->error_info, sizeof(*ce));
2655 mtx_unlock(&sc->ciss_mtx);
2656 if ((ioc->buf_size > 0) &&
2657 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2658 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2659 goto out_unlocked;
2660 }
2661
2662 /* done OK */
2663 error = 0;
2664
2665out_unlocked:
2666 mtx_lock(&sc->ciss_mtx);
2667
2668out:
2669 if ((cr != NULL) && (cr->cr_data != NULL))
2670 free(cr->cr_data, CISS_MALLOC_CLASS);
2671 if (cr != NULL)
2672 ciss_release_request(cr);
2673 return(error);
2674}
2675
2676/************************************************************************
2677 * Map a request into bus-visible space, initialise the scatter/gather
2678 * list.
2679 */
2680static int
2681ciss_map_request(struct ciss_request *cr)
2682{
2683 struct ciss_softc *sc;
2684 int error = 0;
2685
2686 debug_called(2);
2687
2688 sc = cr->cr_sc;
2689
2690 /* check that mapping is necessary */
2691 if (cr->cr_flags & CISS_REQ_MAPPED)
2692 return(0);
2693
2694 cr->cr_flags |= CISS_REQ_MAPPED;
2695
2696 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2697 BUS_DMASYNC_PREWRITE);
2698
2699 if (cr->cr_data != NULL) {
2700 if (cr->cr_flags & CISS_REQ_CCB)
2701 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2702 cr->cr_datamap, cr->cr_data,
2703 ciss_request_map_helper, cr, 0);
2704 else
2705 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2706 cr->cr_data, cr->cr_length,
2707 ciss_request_map_helper, cr, 0);
2708 if (error != 0)
2709 return (error);
2710 } else {
2711 /*
2712 * Post the command to the adapter.
2713 */
2714 cr->cr_sg_tag = CISS_SG_NONE;
2715 cr->cr_flags |= CISS_REQ_BUSY;
2716 if (sc->ciss_perf)
2717 CISS_TL_PERF_POST_CMD(sc, cr);
2718 else
2719 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2720 }
2721
2722 return(0);
2723}
2724
2725static void
2726ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2727{
2728 struct ciss_command *cc;
2729 struct ciss_request *cr;
2730 struct ciss_softc *sc;
2731 int i;
2732
2733 debug_called(2);
2734
2735 cr = (struct ciss_request *)arg;
2736 sc = cr->cr_sc;
2737 cc = cr->cr_cc;
2738
2739 for (i = 0; i < nseg; i++) {
2740 cc->sg[i].address = segs[i].ds_addr;
2741 cc->sg[i].length = segs[i].ds_len;
2742 cc->sg[i].extension = 0;
2743 }
2744 /* we leave the s/g table entirely within the command */
2745 cc->header.sg_in_list = nseg;
2746 cc->header.sg_total = nseg;
2747
2748 if (cr->cr_flags & CISS_REQ_DATAIN)
2749 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2750 if (cr->cr_flags & CISS_REQ_DATAOUT)
2751 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2752
2753 if (nseg == 0)
2754 cr->cr_sg_tag = CISS_SG_NONE;
2755 else if (nseg == 1)
2756 cr->cr_sg_tag = CISS_SG_1;
2757 else if (nseg == 2)
2758 cr->cr_sg_tag = CISS_SG_2;
2759 else if (nseg <= 4)
2760 cr->cr_sg_tag = CISS_SG_4;
2761 else if (nseg <= 8)
2762 cr->cr_sg_tag = CISS_SG_8;
2763 else if (nseg <= 16)
2764 cr->cr_sg_tag = CISS_SG_16;
2765 else if (nseg <= 32)
2766 cr->cr_sg_tag = CISS_SG_32;
2767 else
2768 cr->cr_sg_tag = CISS_SG_MAX;
2769
2770 /*
2771 * Post the command to the adapter.
2772 */
2773 cr->cr_flags |= CISS_REQ_BUSY;
2774 if (sc->ciss_perf)
2775 CISS_TL_PERF_POST_CMD(sc, cr);
2776 else
2777 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2778}
2779
2780/************************************************************************
2781 * Unmap a request from bus-visible space.
2782 */
2783static void
2784ciss_unmap_request(struct ciss_request *cr)
2785{
2786 struct ciss_softc *sc;
2787
2788 debug_called(2);
2789
2790 sc = cr->cr_sc;
2791
2792 /* check that unmapping is necessary */
2793 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2794 return;
2795
2796 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2797 BUS_DMASYNC_POSTWRITE);
2798
2799 if (cr->cr_data == NULL)
2800 goto out;
2801
2802 if (cr->cr_flags & CISS_REQ_DATAIN)
2803 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2804 if (cr->cr_flags & CISS_REQ_DATAOUT)
2805 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2806
2807 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2808out:
2809 cr->cr_flags &= ~CISS_REQ_MAPPED;
2810}
2811
2812/************************************************************************
2813 * Attach the driver to CAM.
2814 *
2815 * We put all the logical drives on a single SCSI bus.
2816 */
2817static int
2818ciss_cam_init(struct ciss_softc *sc)
2819{
2820 int i, maxbus;
2821
2822 debug_called(1);
2823
2824 /*
2825 * Allocate a devq. We can reuse this for the masked physical
2826 * devices if we decide to export these as well.
2827 */
2828 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2829 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2830 return(ENOMEM);
2831 }
2832
2833 /*
2834 * Create a SIM.
2835 *
2836 * This naturally wastes a bit of memory. The alternative is to allocate
2837 * and register each bus as it is found, and then track them on a linked
2838 * list. Unfortunately, the driver has a few places where it needs to
2839 * look up the SIM based solely on bus number, and it's unclear whether
2840 * a list traversal would work for these situations.
2841 */
2842 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2843 CISS_PHYSICAL_BASE);
2844 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2845 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2846 if (sc->ciss_cam_sim == NULL) {
2847 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2848 return(ENOMEM);
2849 }
2850
2851 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2852 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2853 "ciss", sc,
2854 device_get_unit(sc->ciss_dev),
2855 &sc->ciss_mtx,
2856 2,
2857 sc->ciss_max_requests - 2,
2858 sc->ciss_cam_devq)) == NULL) {
2859 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2860 return(ENOMEM);
2861 }
2862
2863 /*
2864 * Register bus with this SIM.
2865 */
2866 mtx_lock(&sc->ciss_mtx);
2867 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2868 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2869 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2870 mtx_unlock(&sc->ciss_mtx);
2871 return (ENXIO);
2872 }
2873 }
2874 mtx_unlock(&sc->ciss_mtx);
2875 }
2876
2877 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2878 CISS_PHYSICAL_BASE; i++) {
2879 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2880 "ciss", sc,
2881 device_get_unit(sc->ciss_dev),
2882 &sc->ciss_mtx, 1,
2883 sc->ciss_max_requests - 2,
2884 sc->ciss_cam_devq)) == NULL) {
2885 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2886 return (ENOMEM);
2887 }
2888
2889 mtx_lock(&sc->ciss_mtx);
2890 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2891 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2892 mtx_unlock(&sc->ciss_mtx);
2893 return (ENXIO);
2894 }
2895 mtx_unlock(&sc->ciss_mtx);
2896 }
2897
2898 return(0);
2899}
2900
2901/************************************************************************
2902 * Initiate a rescan of the 'logical devices' SIM
2903 */
2904static void
2905ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2906{
2907 union ccb *ccb;
2908
2909 debug_called(1);
2910
2911 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2912 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2913 return;
2914 }
2915
|
2917 cam_sim_path(sc->ciss_cam_sim[bus]),
2918 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2919 ciss_printf(sc, "rescan failed (can't create path)\n");
2920 xpt_free_ccb(ccb);
2921 return;
2922 }
2923 xpt_rescan(ccb);
2924 /* scan is now in progress */
2925}
2926
2927/************************************************************************
2928 * Handle requests coming from CAM
2929 */
2930static void
2931ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2932{
2933 struct ciss_softc *sc;
2934 struct ccb_scsiio *csio;
2935 int bus, target;
2936 int physical;
2937
2938 sc = cam_sim_softc(sim);
2939 bus = cam_sim_bus(sim);
2940 csio = (struct ccb_scsiio *)&ccb->csio;
2941 target = csio->ccb_h.target_id;
2942 physical = CISS_IS_PHYSICAL(bus);
2943
2944 switch (ccb->ccb_h.func_code) {
2945
2946 /* perform SCSI I/O */
2947 case XPT_SCSI_IO:
2948 if (!ciss_cam_action_io(sim, csio))
2949 return;
2950 break;
2951
2952 /* perform geometry calculations */
2953 case XPT_CALC_GEOMETRY:
2954 {
2955 struct ccb_calc_geometry *ccg = &ccb->ccg;
2956 struct ciss_ldrive *ld;
2957
2958 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2959
2960 ld = NULL;
2961 if (!physical)
2962 ld = &sc->ciss_logical[bus][target];
2963
2964 /*
2965 * Use the cached geometry settings unless the fault tolerance
2966 * is invalid.
2967 */
2968 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
2969 u_int32_t secs_per_cylinder;
2970
2971 ccg->heads = 255;
2972 ccg->secs_per_track = 32;
2973 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2974 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2975 } else {
2976 ccg->heads = ld->cl_geometry.heads;
2977 ccg->secs_per_track = ld->cl_geometry.sectors;
2978 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2979 }
2980 ccb->ccb_h.status = CAM_REQ_CMP;
2981 break;
2982 }
2983
2984 /* handle path attribute inquiry */
2985 case XPT_PATH_INQ:
2986 {
2987 struct ccb_pathinq *cpi = &ccb->cpi;
2988
2989 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2990
2991 cpi->version_num = 1;
2992 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2993 cpi->target_sprt = 0;
2994 cpi->hba_misc = 0;
2995 cpi->max_target = sc->ciss_cfg->max_logical_supported;
2996 cpi->max_lun = 0; /* 'logical drive' channel only */
2997 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
2998 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2999 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
3000 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3001 cpi->unit_number = cam_sim_unit(sim);
3002 cpi->bus_id = cam_sim_bus(sim);
3003 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3004 cpi->transport = XPORT_SPI;
3005 cpi->transport_version = 2;
3006 cpi->protocol = PROTO_SCSI;
3007 cpi->protocol_version = SCSI_REV_2;
3008 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE;
3009 ccb->ccb_h.status = CAM_REQ_CMP;
3010 break;
3011 }
3012
3013 case XPT_GET_TRAN_SETTINGS:
3014 {
3015 struct ccb_trans_settings *cts = &ccb->cts;
3016 int bus, target;
3017 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3018 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3019
3020 bus = cam_sim_bus(sim);
3021 target = cts->ccb_h.target_id;
3022
3023 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3024 /* disconnect always OK */
3025 cts->protocol = PROTO_SCSI;
3026 cts->protocol_version = SCSI_REV_2;
3027 cts->transport = XPORT_SPI;
3028 cts->transport_version = 2;
3029
3030 spi->valid = CTS_SPI_VALID_DISC;
3031 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3032
3033 scsi->valid = CTS_SCSI_VALID_TQ;
3034 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3035
3036 cts->ccb_h.status = CAM_REQ_CMP;
3037 break;
3038 }
3039
3040 default: /* we can't do this */
3041 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3042 ccb->ccb_h.status = CAM_REQ_INVALID;
3043 break;
3044 }
3045
3046 xpt_done(ccb);
3047}
3048
3049/************************************************************************
3050 * Handle a CAM SCSI I/O request.
3051 */
3052static int
3053ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3054{
3055 struct ciss_softc *sc;
3056 int bus, target;
3057 struct ciss_request *cr;
3058 struct ciss_command *cc;
3059 int error;
3060
3061 sc = cam_sim_softc(sim);
3062 bus = cam_sim_bus(sim);
3063 target = csio->ccb_h.target_id;
3064
3065 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3066
3067 /* check that the CDB pointer is not to a physical address */
3068 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3069 debug(3, " CDB pointer is to physical address");
3070 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3071 }
3072
3073 /* abandon aborted ccbs or those that have failed validation */
3074 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3075 debug(3, "abandoning CCB due to abort/validation failure");
3076 return(EINVAL);
3077 }
3078
3079 /* handle emulation of some SCSI commands ourself */
3080 if (ciss_cam_emulate(sc, csio))
3081 return(0);
3082
3083 /*
3084 * Get a request to manage this command. If we can't, return the
3085 * ccb, freeze the queue and flag so that we unfreeze it when a
3086 * request completes.
3087 */
3088 if ((error = ciss_get_request(sc, &cr)) != 0) {
3089 xpt_freeze_simq(sim, 1);
3090 sc->ciss_flags |= CISS_FLAG_BUSY;
3091 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3092 return(error);
3093 }
3094
3095 /*
3096 * Build the command.
3097 */
3098 cc = cr->cr_cc;
3099 cr->cr_data = csio;
3100 cr->cr_length = csio->dxfer_len;
3101 cr->cr_complete = ciss_cam_complete;
3102 cr->cr_private = csio;
3103
3104 /*
3105 * Target the right logical volume.
3106 */
3107 if (CISS_IS_PHYSICAL(bus))
3108 cc->header.address =
3109 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3110 else
3111 cc->header.address =
3112 sc->ciss_logical[bus][target].cl_address;
3113 cc->cdb.cdb_length = csio->cdb_len;
3114 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3115 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3116 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3117 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3118 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3119 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3120 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3121 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3122 } else {
3123 cr->cr_data = NULL;
3124 cr->cr_flags = 0;
3125 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3126 }
3127 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3128 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3129 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3130 } else {
3131 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3132 }
3133
3134 /*
3135 * Submit the request to the adapter.
3136 *
3137 * Note that this may fail if we're unable to map the request (and
3138 * if we ever learn a transport layer other than simple, may fail
3139 * if the adapter rejects the command).
3140 */
3141 if ((error = ciss_start(cr)) != 0) {
3142 xpt_freeze_simq(sim, 1);
3143 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3144 if (error == EINPROGRESS) {
3145 error = 0;
3146 } else {
3147 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3148 ciss_release_request(cr);
3149 }
3150 return(error);
3151 }
3152
3153 return(0);
3154}
3155
3156/************************************************************************
3157 * Emulate SCSI commands the adapter doesn't handle as we might like.
3158 */
3159static int
3160ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3161{
3162 int bus, target;
3163 u_int8_t opcode;
3164
3165 target = csio->ccb_h.target_id;
3166 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3167 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3168 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3169
3170 if (CISS_IS_PHYSICAL(bus)) {
3171 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3172 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3173 xpt_done((union ccb *)csio);
3174 return(1);
3175 } else
3176 return(0);
3177 }
3178
3179 /*
3180 * Handle requests for volumes that don't exist or are not online.
3181 * A selection timeout is slightly better than an illegal request.
3182 * Other errors might be better.
3183 */
3184 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3185 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3186 xpt_done((union ccb *)csio);
3187 return(1);
3188 }
3189
3190 /* if we have to fake Synchronise Cache */
3191 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3192 /*
3193 * If this is a Synchronise Cache command, typically issued when
3194 * a device is closed, flush the adapter and complete now.
3195 */
3196 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3197 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3198 ciss_flush_adapter(sc);
3199 csio->ccb_h.status |= CAM_REQ_CMP;
3200 xpt_done((union ccb *)csio);
3201 return(1);
3202 }
3203 }
3204
3205 return(0);
3206}
3207
3208/************************************************************************
3209 * Check for possibly-completed commands.
3210 */
3211static void
3212ciss_cam_poll(struct cam_sim *sim)
3213{
3214 cr_qhead_t qh;
3215 struct ciss_softc *sc = cam_sim_softc(sim);
3216
3217 debug_called(2);
3218
3219 STAILQ_INIT(&qh);
3220 if (sc->ciss_perf)
3221 ciss_perf_done(sc, &qh);
3222 else
3223 ciss_done(sc, &qh);
3224 ciss_complete(sc, &qh);
3225}
3226
3227/************************************************************************
3228 * Handle completion of a command - pass results back through the CCB
3229 */
3230static void
3231ciss_cam_complete(struct ciss_request *cr)
3232{
3233 struct ciss_softc *sc;
3234 struct ciss_command *cc;
3235 struct ciss_error_info *ce;
3236 struct ccb_scsiio *csio;
3237 int scsi_status;
3238 int command_status;
3239
3240 debug_called(2);
3241
3242 sc = cr->cr_sc;
3243 cc = cr->cr_cc;
3244 ce = (struct ciss_error_info *)&(cc->sg[0]);
3245 csio = (struct ccb_scsiio *)cr->cr_private;
3246
3247 /*
3248 * Extract status values from request.
3249 */
3250 ciss_report_request(cr, &command_status, &scsi_status);
3251 csio->scsi_status = scsi_status;
3252
3253 /*
3254 * Handle specific SCSI status values.
3255 */
3256 switch(scsi_status) {
3257 /* no status due to adapter error */
3258 case -1:
3259 debug(0, "adapter error");
3260 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3261 break;
3262
3263 /* no status due to command completed OK */
3264 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3265 debug(2, "SCSI_STATUS_OK");
3266 csio->ccb_h.status |= CAM_REQ_CMP;
3267 break;
3268
3269 /* check condition, sense data included */
3270 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3271 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3272 ce->sense_length, ce->residual_count);
3273 bzero(&csio->sense_data, SSD_FULL_SIZE);
3274 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3275 if (csio->sense_len > ce->sense_length)
3276 csio->sense_resid = csio->sense_len - ce->sense_length;
3277 else
3278 csio->sense_resid = 0;
3279 csio->resid = ce->residual_count;
3280 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3281#ifdef CISS_DEBUG
3282 {
3283 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3284 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3285 csio->sense_resid, /*show_errors*/ 1));
3286 }
3287#endif
3288 break;
3289
3290 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3291 debug(0, "SCSI_STATUS_BUSY");
3292 csio->ccb_h.status |= CAM_SCSI_BUSY;
3293 break;
3294
3295 default:
3296 debug(0, "unknown status 0x%x", csio->scsi_status);
3297 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3298 break;
3299 }
3300
3301 /* handle post-command fixup */
3302 ciss_cam_complete_fixup(sc, csio);
3303
3304 ciss_release_request(cr);
3305 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3306 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3307 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3308 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3309 else
3310 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3311 }
3312 xpt_done((union ccb *)csio);
3313}
3314
3315/********************************************************************************
3316 * Fix up the result of some commands here.
3317 */
3318static void
3319ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3320{
3321 struct scsi_inquiry_data *inq;
3322 struct ciss_ldrive *cl;
3323 uint8_t *cdb;
3324 int bus, target;
3325
3326 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3327 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3328 if (cdb[0] == INQUIRY &&
3329 (cdb[1] & SI_EVPD) == 0 &&
3330 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3331 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3332
3333 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3334 target = csio->ccb_h.target_id;
3335 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3336
3337 /*
3338 * Don't let hard drives be seen by the DA driver. They will still be
3339 * attached by the PASS driver.
3340 */
3341 if (CISS_IS_PHYSICAL(bus)) {
3342 if (SID_TYPE(inq) == T_DIRECT)
3343 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3344 return;
3345 }
3346
3347 cl = &sc->ciss_logical[bus][target];
3348
3349 padstr(inq->vendor, "COMPAQ",
3350 SID_VENDOR_SIZE);
3351 padstr(inq->product,
3352 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3353 SID_PRODUCT_SIZE);
3354 padstr(inq->revision,
3355 ciss_name_ldrive_status(cl->cl_lstatus->status),
3356 SID_REVISION_SIZE);
3357 }
3358}
3359
3360
3361/********************************************************************************
3362 * Find a peripheral attached at (target)
3363 */
3364static struct cam_periph *
3365ciss_find_periph(struct ciss_softc *sc, int bus, int target)
3366{
3367 struct cam_periph *periph;
3368 struct cam_path *path;
3369 int status;
3370
3371 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3372 target, 0);
3373 if (status == CAM_REQ_CMP) {
3374 periph = cam_periph_find(path, NULL);
3375 xpt_free_path(path);
3376 } else {
3377 periph = NULL;
3378 }
3379 return(periph);
3380}
3381
3382/********************************************************************************
3383 * Name the device at (target)
3384 *
3385 * XXX is this strictly correct?
3386 */
3387static int
3388ciss_name_device(struct ciss_softc *sc, int bus, int target)
3389{
3390 struct cam_periph *periph;
3391
3392 if (CISS_IS_PHYSICAL(bus))
3393 return (0);
3394 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) {
3395 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3396 periph->periph_name, periph->unit_number);
3397 return(0);
3398 }
3399 sc->ciss_logical[bus][target].cl_name[0] = 0;
3400 return(ENOENT);
3401}
3402
3403/************************************************************************
3404 * Periodic status monitoring.
3405 */
3406static void
3407ciss_periodic(void *arg)
3408{
3409 struct ciss_softc *sc;
3410 struct ciss_request *cr = NULL;
3411 struct ciss_command *cc = NULL;
3412 int error = 0;
3413
3414 debug_called(1);
3415
3416 sc = (struct ciss_softc *)arg;
3417
3418 /*
3419 * Check the adapter heartbeat.
3420 */
3421 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3422 sc->ciss_heart_attack++;
3423 debug(0, "adapter heart attack in progress 0x%x/%d",
3424 sc->ciss_heartbeat, sc->ciss_heart_attack);
3425 if (sc->ciss_heart_attack == 3) {
3426 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3427 ciss_disable_adapter(sc);
3428 return;
3429 }
3430 } else {
3431 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3432 sc->ciss_heart_attack = 0;
3433 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3434 }
3435
3436 /*
3437 * Send the NOP message and wait for a response.
3438 */
3439 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3440 cc = cr->cr_cc;
3441 cr->cr_complete = ciss_nop_complete;
3442 cc->cdb.cdb_length = 1;
3443 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3444 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3445 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3446 cc->cdb.timeout = 0;
3447 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3448
3449 if ((error = ciss_start(cr)) != 0) {
3450 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3451 }
3452 }
3453
3454 /*
3455 * If the notify event request has died for some reason, or has
3456 * not started yet, restart it.
3457 */
3458 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3459 debug(0, "(re)starting Event Notify chain");
3460 ciss_notify_event(sc);
3461 }
3462
3463 /*
3464 * Reschedule.
3465 */
3466 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3467}
3468
3469static void
3470ciss_nop_complete(struct ciss_request *cr)
3471{
3472 struct ciss_softc *sc;
3473 static int first_time = 1;
3474
3475 sc = cr->cr_sc;
3476 if (ciss_report_request(cr, NULL, NULL) != 0) {
3477 if (first_time == 1) {
3478 first_time = 0;
3479 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3480 }
3481 }
3482
3483 ciss_release_request(cr);
3484}
3485
3486/************************************************************************
3487 * Disable the adapter.
3488 *
3489 * The all requests in completed queue is failed with hardware error.
3490 * This will cause failover in a multipath configuration.
3491 */
3492static void
3493ciss_disable_adapter(struct ciss_softc *sc)
3494{
3495 cr_qhead_t qh;
3496 struct ciss_request *cr;
3497 struct ciss_command *cc;
3498 struct ciss_error_info *ce;
3499 int i;
3500
3501 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3502 pci_disable_busmaster(sc->ciss_dev);
3503 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3504
3505 for (i = 1; i < sc->ciss_max_requests; i++) {
3506 cr = &sc->ciss_request[i];
3507 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3508 continue;
3509
3510 cc = cr->cr_cc;
3511 ce = (struct ciss_error_info *)&(cc->sg[0]);
3512 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3513 ciss_enqueue_complete(cr, &qh);
3514 }
3515
3516 for (;;) {
3517 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3518 break;
3519
3520 /*
3521 * If the request has a callback, invoke it.
3522 */
3523 if (cr->cr_complete != NULL) {
3524 cr->cr_complete(cr);
3525 continue;
3526 }
3527
3528 /*
3529 * If someone is sleeping on this request, wake them up.
3530 */
3531 if (cr->cr_flags & CISS_REQ_SLEEP) {
3532 cr->cr_flags &= ~CISS_REQ_SLEEP;
3533 wakeup(cr);
3534 continue;
3535 }
3536 }
3537}
3538
3539/************************************************************************
3540 * Request a notification response from the adapter.
3541 *
3542 * If (cr) is NULL, this is the first request of the adapter, so
3543 * reset the adapter's message pointer and start with the oldest
3544 * message available.
3545 */
3546static void
3547ciss_notify_event(struct ciss_softc *sc)
3548{
3549 struct ciss_request *cr;
3550 struct ciss_command *cc;
3551 struct ciss_notify_cdb *cnc;
3552 int error;
3553
3554 debug_called(1);
3555
3556 cr = sc->ciss_periodic_notify;
3557
3558 /* get a request if we don't already have one */
3559 if (cr == NULL) {
3560 if ((error = ciss_get_request(sc, &cr)) != 0) {
3561 debug(0, "can't get notify event request");
3562 goto out;
3563 }
3564 sc->ciss_periodic_notify = cr;
3565 cr->cr_complete = ciss_notify_complete;
3566 debug(1, "acquired request %d", cr->cr_tag);
3567 }
3568
3569 /*
3570 * Get a databuffer if we don't already have one, note that the
3571 * adapter command wants a larger buffer than the actual
3572 * structure.
3573 */
3574 if (cr->cr_data == NULL) {
3575 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3576 debug(0, "can't get notify event request buffer");
3577 error = ENOMEM;
3578 goto out;
3579 }
3580 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3581 }
3582
3583 /* re-setup the request's command (since we never release it) XXX overkill*/
3584 ciss_preen_command(cr);
3585
3586 /* (re)build the notify event command */
3587 cc = cr->cr_cc;
3588 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3589 cc->header.address.physical.bus = 0;
3590 cc->header.address.physical.target = 0;
3591
3592 cc->cdb.cdb_length = sizeof(*cnc);
3593 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3594 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3595 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3596 cc->cdb.timeout = 0; /* no timeout, we hope */
3597
3598 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3599 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3600 cnc->opcode = CISS_OPCODE_READ;
3601 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3602 cnc->timeout = 0; /* no timeout, we hope */
3603 cnc->synchronous = 0;
3604 cnc->ordered = 0;
3605 cnc->seek_to_oldest = 0;
3606 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3607 cnc->new_only = 1;
3608 else
3609 cnc->new_only = 0;
3610 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3611
3612 /* submit the request */
3613 error = ciss_start(cr);
3614
3615 out:
3616 if (error) {
3617 if (cr != NULL) {
3618 if (cr->cr_data != NULL)
3619 free(cr->cr_data, CISS_MALLOC_CLASS);
3620 ciss_release_request(cr);
3621 }
3622 sc->ciss_periodic_notify = NULL;
3623 debug(0, "can't submit notify event request");
3624 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3625 } else {
3626 debug(1, "notify event submitted");
3627 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3628 }
3629}
3630
3631static void
3632ciss_notify_complete(struct ciss_request *cr)
3633{
3634 struct ciss_command *cc;
3635 struct ciss_notify *cn;
3636 struct ciss_softc *sc;
3637 int scsi_status;
3638 int command_status;
3639 debug_called(1);
3640
3641 cc = cr->cr_cc;
3642 cn = (struct ciss_notify *)cr->cr_data;
3643 sc = cr->cr_sc;
3644
3645 /*
3646 * Report request results, decode status.
3647 */
3648 ciss_report_request(cr, &command_status, &scsi_status);
3649
3650 /*
3651 * Abort the chain on a fatal error.
3652 *
3653 * XXX which of these are actually errors?
3654 */
3655 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3656 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3657 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3658 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3659 ciss_name_command_status(command_status));
3660 ciss_release_request(cr);
3661 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3662 return;
3663 }
3664
3665 /*
3666 * If the adapter gave us a text message, print it.
3667 */
3668 if (cn->message[0] != 0)
3669 ciss_printf(sc, "*** %.80s\n", cn->message);
3670
3671 debug(0, "notify event class %d subclass %d detail %d",
3672 cn->class, cn->subclass, cn->detail);
3673
3674 /*
3675 * If the response indicates that the notifier has been aborted,
3676 * release the notifier command.
3677 */
3678 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3679 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3680 (cn->detail == 1)) {
3681 debug(0, "notifier exiting");
3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3683 ciss_release_request(cr);
3684 sc->ciss_periodic_notify = NULL;
3685 wakeup(&sc->ciss_periodic_notify);
3686 } else {
3687 /* Handle notify events in a kernel thread */
3688 ciss_enqueue_notify(cr);
3689 sc->ciss_periodic_notify = NULL;
3690 wakeup(&sc->ciss_periodic_notify);
3691 wakeup(&sc->ciss_notify);
3692 }
3693 /*
3694 * Send a new notify event command, if we're not aborting.
3695 */
3696 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3697 ciss_notify_event(sc);
3698 }
3699}
3700
3701/************************************************************************
3702 * Abort the Notify Event chain.
3703 *
3704 * Note that we can't just abort the command in progress; we have to
3705 * explicitly issue an Abort Notify Event command in order for the
3706 * adapter to clean up correctly.
3707 *
3708 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3709 * the chain will not restart itself.
3710 */
3711static int
3712ciss_notify_abort(struct ciss_softc *sc)
3713{
3714 struct ciss_request *cr;
3715 struct ciss_command *cc;
3716 struct ciss_notify_cdb *cnc;
3717 int error, command_status, scsi_status;
3718
3719 debug_called(1);
3720
3721 cr = NULL;
3722 error = 0;
3723
3724 /* verify that there's an outstanding command */
3725 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3726 goto out;
3727
3728 /* get a command to issue the abort with */
3729 if ((error = ciss_get_request(sc, &cr)))
3730 goto out;
3731
3732 /* get a buffer for the result */
3733 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3734 debug(0, "can't get notify event request buffer");
3735 error = ENOMEM;
3736 goto out;
3737 }
3738 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3739
3740 /* build the CDB */
3741 cc = cr->cr_cc;
3742 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3743 cc->header.address.physical.bus = 0;
3744 cc->header.address.physical.target = 0;
3745 cc->cdb.cdb_length = sizeof(*cnc);
3746 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3747 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3748 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3749 cc->cdb.timeout = 0; /* no timeout, we hope */
3750
3751 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3752 bzero(cnc, sizeof(*cnc));
3753 cnc->opcode = CISS_OPCODE_WRITE;
3754 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3755 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3756
3757 ciss_print_request(cr);
3758
3759 /*
3760 * Submit the request and wait for it to complete.
3761 */
3762 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3763 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3764 goto out;
3765 }
3766
3767 /*
3768 * Check response.
3769 */
3770 ciss_report_request(cr, &command_status, &scsi_status);
3771 switch(command_status) {
3772 case CISS_CMD_STATUS_SUCCESS:
3773 break;
3774 case CISS_CMD_STATUS_INVALID_COMMAND:
3775 /*
3776 * Some older adapters don't support the CISS version of this
3777 * command. Fall back to using the BMIC version.
3778 */
3779 error = ciss_notify_abort_bmic(sc);
3780 if (error != 0)
3781 goto out;
3782 break;
3783
3784 case CISS_CMD_STATUS_TARGET_STATUS:
3785 /*
3786 * This can happen if the adapter thinks there wasn't an outstanding
3787 * Notify Event command but we did. We clean up here.
3788 */
3789 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3790 if (sc->ciss_periodic_notify != NULL)
3791 ciss_release_request(sc->ciss_periodic_notify);
3792 error = 0;
3793 goto out;
3794 }
3795 /* FALLTHROUGH */
3796
3797 default:
3798 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3799 ciss_name_command_status(command_status));
3800 error = EIO;
3801 goto out;
3802 }
3803
3804 /*
3805 * Sleep waiting for the notifier command to complete. Note
3806 * that if it doesn't, we may end up in a bad situation, since
3807 * the adapter may deliver it later. Also note that the adapter
3808 * requires the Notify Event command to be cancelled in order to
3809 * maintain internal bookkeeping.
3810 */
3811 while (sc->ciss_periodic_notify != NULL) {
3812 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3813 if (error == EWOULDBLOCK) {
3814 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3815 break;
3816 }
3817 }
3818
3819 out:
3820 /* release the cancel request */
3821 if (cr != NULL) {
3822 if (cr->cr_data != NULL)
3823 free(cr->cr_data, CISS_MALLOC_CLASS);
3824 ciss_release_request(cr);
3825 }
3826 if (error == 0)
3827 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3828 return(error);
3829}
3830
3831/************************************************************************
3832 * Abort the Notify Event chain using a BMIC command.
3833 */
3834static int
3835ciss_notify_abort_bmic(struct ciss_softc *sc)
3836{
3837 struct ciss_request *cr;
3838 int error, command_status;
3839
3840 debug_called(1);
3841
3842 cr = NULL;
3843 error = 0;
3844
3845 /* verify that there's an outstanding command */
3846 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3847 goto out;
3848
3849 /*
3850 * Build a BMIC command to cancel the Notify on Event command.
3851 *
3852 * Note that we are sending a CISS opcode here. Odd.
3853 */
3854 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3855 NULL, 0)) != 0)
3856 goto out;
3857
3858 /*
3859 * Submit the request and wait for it to complete.
3860 */
3861 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3862 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3863 goto out;
3864 }
3865
3866 /*
3867 * Check response.
3868 */
3869 ciss_report_request(cr, &command_status, NULL);
3870 switch(command_status) {
3871 case CISS_CMD_STATUS_SUCCESS:
3872 break;
3873 default:
3874 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3875 ciss_name_command_status(command_status));
3876 error = EIO;
3877 goto out;
3878 }
3879
3880out:
3881 if (cr != NULL)
3882 ciss_release_request(cr);
3883 return(error);
3884}
3885
3886/************************************************************************
3887 * Handle rescanning all the logical volumes when a notify event
3888 * causes the drives to come online or offline.
3889 */
3890static void
3891ciss_notify_rescan_logical(struct ciss_softc *sc)
3892{
3893 struct ciss_lun_report *cll;
3894 struct ciss_ldrive *ld;
3895 int i, j, ndrives;
3896
3897 /*
3898 * We must rescan all logical volumes to get the right logical
3899 * drive address.
3900 */
3901 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3902 sc->ciss_cfg->max_logical_supported);
3903 if (cll == NULL)
3904 return;
3905
3906 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3907
3908 /*
3909 * Delete any of the drives which were destroyed by the
3910 * firmware.
3911 */
3912 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3913 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3914 ld = &sc->ciss_logical[i][j];
3915
3916 if (ld->cl_update == 0)
3917 continue;
3918
3919 if (ld->cl_status != CISS_LD_ONLINE) {
3920 ciss_cam_rescan_target(sc, i, j);
3921 ld->cl_update = 0;
3922 if (ld->cl_ldrive)
3923 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3924 if (ld->cl_lstatus)
3925 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3926
3927 ld->cl_ldrive = NULL;
3928 ld->cl_lstatus = NULL;
3929 }
3930 }
3931 }
3932
3933 /*
3934 * Scan for new drives.
3935 */
3936 for (i = 0; i < ndrives; i++) {
3937 int bus, target;
3938
3939 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3940 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3941 ld = &sc->ciss_logical[bus][target];
3942
3943 if (ld->cl_update == 0)
3944 continue;
3945
3946 ld->cl_update = 0;
3947 ld->cl_address = cll->lun[i];
3948 ld->cl_controller = &sc->ciss_controllers[bus];
3949 if (ciss_identify_logical(sc, ld) == 0) {
3950 ciss_cam_rescan_target(sc, bus, target);
3951 }
3952 }
3953 free(cll, CISS_MALLOC_CLASS);
3954}
3955
3956/************************************************************************
3957 * Handle a notify event relating to the status of a logical drive.
3958 *
3959 * XXX need to be able to defer some of these to properly handle
3960 * calling the "ID Physical drive" command, unless the 'extended'
3961 * drive IDs are always in BIG_MAP format.
3962 */
3963static void
3964ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
3965{
3966 struct ciss_ldrive *ld;
3967 int bus, target;
3968 int rescan_ld;
3969
3970 debug_called(2);
3971
3972 bus = cn->device.physical.bus;
3973 target = cn->data.logical_status.logical_drive;
3974 ld = &sc->ciss_logical[bus][target];
3975
3976 switch (cn->subclass) {
3977 case CISS_NOTIFY_LOGICAL_STATUS:
3978 switch (cn->detail) {
3979 case 0:
3980 ciss_name_device(sc, bus, target);
3981 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3982 cn->data.logical_status.logical_drive, ld->cl_name,
3983 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3984 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3985 cn->data.logical_status.spare_state,
3986 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3987
3988 /*
3989 * Update our idea of the drive's status.
3990 */
3991 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3992 if (ld->cl_lstatus != NULL)
3993 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3994
3995 /*
3996 * Have CAM rescan the drive if its status has changed.
3997 */
3998 rescan_ld = (cn->data.logical_status.previous_state !=
3999 cn->data.logical_status.new_state) ? 1 : 0;
4000 if (rescan_ld) {
4001 ld->cl_update = 1;
4002 ciss_notify_rescan_logical(sc);
4003 }
4004
4005 break;
4006
4007 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4008 ciss_name_device(sc, bus, target);
4009 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4010 cn->data.logical_status.logical_drive, ld->cl_name);
4011 ciss_accept_media(sc, ld);
4012
4013 ld->cl_update = 1;
4014 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4015 ciss_notify_rescan_logical(sc);
4016 break;
4017
4018 case 2:
4019 case 3:
4020 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4021 cn->data.rebuild_aborted.logical_drive,
4022 ld->cl_name,
4023 (cn->detail == 2) ? "read" : "write");
4024 break;
4025 }
4026 break;
4027
4028 case CISS_NOTIFY_LOGICAL_ERROR:
4029 if (cn->detail == 0) {
4030 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4031 cn->data.io_error.logical_drive,
4032 ld->cl_name,
4033 cn->data.io_error.failure_bus,
4034 cn->data.io_error.failure_drive);
4035 /* XXX should we take the drive down at this point, or will we be told? */
4036 }
4037 break;
4038
4039 case CISS_NOTIFY_LOGICAL_SURFACE:
4040 if (cn->detail == 0)
4041 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4042 cn->data.consistency_completed.logical_drive,
4043 ld->cl_name);
4044 break;
4045 }
4046}
4047
4048/************************************************************************
4049 * Handle a notify event relating to the status of a physical drive.
4050 */
4051static void
4052ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4053{
4054}
4055
4056/************************************************************************
4057 * Handle a notify event relating to the status of a physical drive.
4058 */
4059static void
4060ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4061{
4062 struct ciss_lun_report *cll = NULL;
4063 int bus, target;
4064
4065 switch (cn->subclass) {
4066 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4067 case CISS_NOTIFY_HOTPLUG_NONDISK:
4068 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4069 target =
4070 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4071
4072 if (cn->detail == 0) {
4073 /*
4074 * Mark the device offline so that it'll start producing selection
4075 * timeouts to the upper layer.
4076 */
4077 if ((bus >= 0) && (target >= 0))
4078 sc->ciss_physical[bus][target].cp_online = 0;
4079 } else {
4080 /*
4081 * Rescan the physical lun list for new items
4082 */
4083 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4084 sc->ciss_cfg->max_physical_supported);
4085 if (cll == NULL) {
4086 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4087 break;
4088 }
4089 ciss_filter_physical(sc, cll);
4090 }
4091 break;
4092
4093 default:
4094 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4095 return;
4096 }
4097
4098 if (cll != NULL)
4099 free(cll, CISS_MALLOC_CLASS);
4100}
4101
4102/************************************************************************
4103 * Handle deferred processing of notify events. Notify events may need
4104 * sleep which is unsafe during an interrupt.
4105 */
4106static void
4107ciss_notify_thread(void *arg)
4108{
4109 struct ciss_softc *sc;
4110 struct ciss_request *cr;
4111 struct ciss_notify *cn;
4112
4113 sc = (struct ciss_softc *)arg;
4114#if __FreeBSD_version >= 500000
4115 mtx_lock(&sc->ciss_mtx);
4116#endif
4117
4118 for (;;) {
4119 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4120 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4121 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4122 }
4123
4124 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4125 break;
4126
4127 cr = ciss_dequeue_notify(sc);
4128
4129 if (cr == NULL)
4130 panic("cr null");
4131 cn = (struct ciss_notify *)cr->cr_data;
4132
4133 switch (cn->class) {
4134 case CISS_NOTIFY_HOTPLUG:
4135 ciss_notify_hotplug(sc, cn);
4136 break;
4137 case CISS_NOTIFY_LOGICAL:
4138 ciss_notify_logical(sc, cn);
4139 break;
4140 case CISS_NOTIFY_PHYSICAL:
4141 ciss_notify_physical(sc, cn);
4142 break;
4143 }
4144
4145 ciss_release_request(cr);
4146
4147 }
4148 sc->ciss_notify_thread = NULL;
4149 wakeup(&sc->ciss_notify_thread);
4150
4151#if __FreeBSD_version >= 500000
4152 mtx_unlock(&sc->ciss_mtx);
4153#endif
4154 kproc_exit(0);
4155}
4156
4157/************************************************************************
4158 * Start the notification kernel thread.
4159 */
4160static void
4161ciss_spawn_notify_thread(struct ciss_softc *sc)
4162{
4163
4164#if __FreeBSD_version > 500005
4165 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4166 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4167 device_get_unit(sc->ciss_dev)))
4168#else
4169 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4170 &sc->ciss_notify_thread, "ciss_notify%d",
4171 device_get_unit(sc->ciss_dev)))
4172#endif
4173 panic("Could not create notify thread\n");
4174}
4175
4176/************************************************************************
4177 * Kill the notification kernel thread.
4178 */
4179static void
4180ciss_kill_notify_thread(struct ciss_softc *sc)
4181{
4182
4183 if (sc->ciss_notify_thread == NULL)
4184 return;
4185
4186 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4187 wakeup(&sc->ciss_notify);
4188 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4189}
4190
4191/************************************************************************
4192 * Print a request.
4193 */
4194static void
4195ciss_print_request(struct ciss_request *cr)
4196{
4197 struct ciss_softc *sc;
4198 struct ciss_command *cc;
4199 int i;
4200
4201 sc = cr->cr_sc;
4202 cc = cr->cr_cc;
4203
4204 ciss_printf(sc, "REQUEST @ %p\n", cr);
4205 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4206 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4207 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4208 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4209 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4210 switch(cc->header.address.mode.mode) {
4211 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4212 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4213 ciss_printf(sc, " physical bus %d target %d\n",
4214 cc->header.address.physical.bus, cc->header.address.physical.target);
4215 break;
4216 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4217 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4218 break;
4219 }
4220 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4221 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4222 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4223 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4224 cc->cdb.cdb_length,
4225 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4226 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4227 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4228 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4229 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4230 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4231 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4232 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4233
4234 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4235 /* XXX print error info */
4236 } else {
4237 /* since we don't use chained s/g, don't support it here */
4238 for (i = 0; i < cc->header.sg_in_list; i++) {
4239 if ((i % 4) == 0)
4240 ciss_printf(sc, " ");
4241 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4242 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4243 printf("\n");
4244 }
4245 }
4246}
4247
4248/************************************************************************
4249 * Print information about the status of a logical drive.
4250 */
4251static void
4252ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4253{
4254 int bus, target, i;
4255
4256 if (ld->cl_lstatus == NULL) {
4257 printf("does not exist\n");
4258 return;
4259 }
4260
4261 /* print drive status */
4262 switch(ld->cl_lstatus->status) {
4263 case CISS_LSTATUS_OK:
4264 printf("online\n");
4265 break;
4266 case CISS_LSTATUS_INTERIM_RECOVERY:
4267 printf("in interim recovery mode\n");
4268 break;
4269 case CISS_LSTATUS_READY_RECOVERY:
4270 printf("ready to begin recovery\n");
4271 break;
4272 case CISS_LSTATUS_RECOVERING:
4273 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4274 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4275 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4276 bus, target, ld->cl_lstatus->blocks_to_recover);
4277 break;
4278 case CISS_LSTATUS_EXPANDING:
4279 printf("being expanded, %u blocks remaining\n",
4280 ld->cl_lstatus->blocks_to_recover);
4281 break;
4282 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4283 printf("queued for expansion\n");
4284 break;
4285 case CISS_LSTATUS_FAILED:
4286 printf("queued for expansion\n");
4287 break;
4288 case CISS_LSTATUS_WRONG_PDRIVE:
4289 printf("wrong physical drive inserted\n");
4290 break;
4291 case CISS_LSTATUS_MISSING_PDRIVE:
4292 printf("missing a needed physical drive\n");
4293 break;
4294 case CISS_LSTATUS_BECOMING_READY:
4295 printf("becoming ready\n");
4296 break;
4297 }
4298
4299 /* print failed physical drives */
4300 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4301 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4302 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4303 if (bus == -1)
4304 continue;
4305 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4306 ld->cl_lstatus->drive_failure_map[i]);
4307 }
4308}
4309
4310#ifdef CISS_DEBUG
4311#include "opt_ddb.h"
4312#ifdef DDB
4313#include <ddb/ddb.h>
4314/************************************************************************
4315 * Print information about the controller/driver.
4316 */
4317static void
4318ciss_print_adapter(struct ciss_softc *sc)
4319{
4320 int i, j;
4321
4322 ciss_printf(sc, "ADAPTER:\n");
4323 for (i = 0; i < CISSQ_COUNT; i++) {
4324 ciss_printf(sc, "%s %d/%d\n",
4325 i == 0 ? "free" :
4326 i == 1 ? "busy" : "complete",
4327 sc->ciss_qstat[i].q_length,
4328 sc->ciss_qstat[i].q_max);
4329 }
4330 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4331 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4332 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4333
4334 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4335 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4336 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4337 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4338 }
4339 }
4340
4341 /* XXX Should physical drives be printed out here? */
4342
4343 for (i = 1; i < sc->ciss_max_requests; i++)
4344 ciss_print_request(sc->ciss_request + i);
4345}
4346
4347/* DDB hook */
4348DB_COMMAND(ciss_prt, db_ciss_prt)
4349{
4350 struct ciss_softc *sc;
4351
4352 sc = devclass_get_softc(devclass_find("ciss"), 0);
4353 if (sc == NULL) {
4354 printf("no ciss controllers\n");
4355 } else {
4356 ciss_print_adapter(sc);
4357 }
4358}
4359#endif
4360#endif
4361
4362/************************************************************************
4363 * Return a name for a logical drive status value.
4364 */
4365static const char *
4366ciss_name_ldrive_status(int status)
4367{
4368 switch (status) {
4369 case CISS_LSTATUS_OK:
4370 return("OK");
4371 case CISS_LSTATUS_FAILED:
4372 return("failed");
4373 case CISS_LSTATUS_NOT_CONFIGURED:
4374 return("not configured");
4375 case CISS_LSTATUS_INTERIM_RECOVERY:
4376 return("interim recovery");
4377 case CISS_LSTATUS_READY_RECOVERY:
4378 return("ready for recovery");
4379 case CISS_LSTATUS_RECOVERING:
4380 return("recovering");
4381 case CISS_LSTATUS_WRONG_PDRIVE:
4382 return("wrong physical drive inserted");
4383 case CISS_LSTATUS_MISSING_PDRIVE:
4384 return("missing physical drive");
4385 case CISS_LSTATUS_EXPANDING:
4386 return("expanding");
4387 case CISS_LSTATUS_BECOMING_READY:
4388 return("becoming ready");
4389 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4390 return("queued for expansion");
4391 }
4392 return("unknown status");
4393}
4394
4395/************************************************************************
4396 * Return an online/offline/nonexistent value for a logical drive
4397 * status value.
4398 */
4399static int
4400ciss_decode_ldrive_status(int status)
4401{
4402 switch(status) {
4403 case CISS_LSTATUS_NOT_CONFIGURED:
4404 return(CISS_LD_NONEXISTENT);
4405
4406 case CISS_LSTATUS_OK:
4407 case CISS_LSTATUS_INTERIM_RECOVERY:
4408 case CISS_LSTATUS_READY_RECOVERY:
4409 case CISS_LSTATUS_RECOVERING:
4410 case CISS_LSTATUS_EXPANDING:
4411 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4412 return(CISS_LD_ONLINE);
4413
4414 case CISS_LSTATUS_FAILED:
4415 case CISS_LSTATUS_WRONG_PDRIVE:
4416 case CISS_LSTATUS_MISSING_PDRIVE:
4417 case CISS_LSTATUS_BECOMING_READY:
4418 default:
4419 return(CISS_LD_OFFLINE);
4420 }
4421}
4422
4423
4424/************************************************************************
4425 * Return a name for a logical drive's organisation.
4426 */
4427static const char *
4428ciss_name_ldrive_org(int org)
4429{
4430 switch(org) {
4431 case CISS_LDRIVE_RAID0:
4432 return("RAID 0");
4433 case CISS_LDRIVE_RAID1:
4434 return("RAID 1(1+0)");
4435 case CISS_LDRIVE_RAID4:
4436 return("RAID 4");
4437 case CISS_LDRIVE_RAID5:
4438 return("RAID 5");
4439 case CISS_LDRIVE_RAID51:
4440 return("RAID 5+1");
4441 case CISS_LDRIVE_RAIDADG:
4442 return("RAID ADG");
4443 }
4444 return("unkown");
4445}
4446
4447/************************************************************************
4448 * Return a name for a command status value.
4449 */
4450static const char *
4451ciss_name_command_status(int status)
4452{
4453 switch(status) {
4454 case CISS_CMD_STATUS_SUCCESS:
4455 return("success");
4456 case CISS_CMD_STATUS_TARGET_STATUS:
4457 return("target status");
4458 case CISS_CMD_STATUS_DATA_UNDERRUN:
4459 return("data underrun");
4460 case CISS_CMD_STATUS_DATA_OVERRUN:
4461 return("data overrun");
4462 case CISS_CMD_STATUS_INVALID_COMMAND:
4463 return("invalid command");
4464 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4465 return("protocol error");
4466 case CISS_CMD_STATUS_HARDWARE_ERROR:
4467 return("hardware error");
4468 case CISS_CMD_STATUS_CONNECTION_LOST:
4469 return("connection lost");
4470 case CISS_CMD_STATUS_ABORTED:
4471 return("aborted");
4472 case CISS_CMD_STATUS_ABORT_FAILED:
4473 return("abort failed");
4474 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4475 return("unsolicited abort");
4476 case CISS_CMD_STATUS_TIMEOUT:
4477 return("timeout");
4478 case CISS_CMD_STATUS_UNABORTABLE:
4479 return("unabortable");
4480 }
4481 return("unknown status");
4482}
4483
4484/************************************************************************
4485 * Handle an open on the control device.
4486 */
4487static int
4488ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4489{
4490 struct ciss_softc *sc;
4491
4492 debug_called(1);
4493
4494 sc = (struct ciss_softc *)dev->si_drv1;
4495
4496 /* we might want to veto if someone already has us open */
4497
4498 mtx_lock(&sc->ciss_mtx);
4499 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4500 mtx_unlock(&sc->ciss_mtx);
4501 return(0);
4502}
4503
4504/************************************************************************
4505 * Handle the last close on the control device.
4506 */
4507static int
4508ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4509{
4510 struct ciss_softc *sc;
4511
4512 debug_called(1);
4513
4514 sc = (struct ciss_softc *)dev->si_drv1;
4515
4516 mtx_lock(&sc->ciss_mtx);
4517 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4518 mtx_unlock(&sc->ciss_mtx);
4519 return (0);
4520}
4521
4522/********************************************************************************
4523 * Handle adapter-specific control operations.
4524 *
4525 * Note that the API here is compatible with the Linux driver, in order to
4526 * simplify the porting of Compaq's userland tools.
4527 */
4528static int
4529ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4530{
4531 struct ciss_softc *sc;
4532 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4533#ifdef __amd64__
4534 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4535 IOCTL_Command_struct ioc_swab;
4536#endif
4537 int error;
4538
4539 debug_called(1);
4540
4541 sc = (struct ciss_softc *)dev->si_drv1;
4542 error = 0;
4543 mtx_lock(&sc->ciss_mtx);
4544
4545 switch(cmd) {
4546 case CCISS_GETQSTATS:
4547 {
4548 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4549
4550 switch (cr->cs_item) {
4551 case CISSQ_FREE:
4552 case CISSQ_NOTIFY:
4553 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4554 sizeof(struct ciss_qstat));
4555 break;
4556 default:
4557 error = ENOIOCTL;
4558 break;
4559 }
4560
4561 break;
4562 }
4563
4564 case CCISS_GETPCIINFO:
4565 {
4566 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4567
4568 pis->bus = pci_get_bus(sc->ciss_dev);
4569 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4570 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4571 pci_get_subdevice(sc->ciss_dev);
4572
4573 break;
4574 }
4575
4576 case CCISS_GETINTINFO:
4577 {
4578 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4579
4580 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4581 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4582
4583 break;
4584 }
4585
4586 case CCISS_SETINTINFO:
4587 {
4588 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4589
4590 if ((cis->delay == 0) && (cis->count == 0)) {
4591 error = EINVAL;
4592 break;
4593 }
4594
4595 /*
4596 * XXX apparently this is only safe if the controller is idle,
4597 * we should suspend it before doing this.
4598 */
4599 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4600 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4601
4602 if (ciss_update_config(sc))
4603 error = EIO;
4604
4605 /* XXX resume the controller here */
4606 break;
4607 }
4608
4609 case CCISS_GETNODENAME:
4610 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4611 sizeof(NodeName_type));
4612 break;
4613
4614 case CCISS_SETNODENAME:
4615 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4616 sizeof(NodeName_type));
4617 if (ciss_update_config(sc))
4618 error = EIO;
4619 break;
4620
4621 case CCISS_GETHEARTBEAT:
4622 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4623 break;
4624
4625 case CCISS_GETBUSTYPES:
4626 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4627 break;
4628
4629 case CCISS_GETFIRMVER:
4630 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4631 sizeof(FirmwareVer_type));
4632 break;
4633
4634 case CCISS_GETDRIVERVER:
4635 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4636 break;
4637
4638 case CCISS_REVALIDVOLS:
4639 /*
4640 * This is a bit ugly; to do it "right" we really need
4641 * to find any disks that have changed, kick CAM off them,
4642 * then rescan only these disks. It'd be nice if they
4643 * a) told us which disk(s) they were going to play with,
4644 * and b) which ones had arrived. 8(
4645 */
4646 break;
4647
4648#ifdef __amd64__
4649 case CCISS_PASSTHRU32:
4650 ioc_swab.LUN_info = ioc32->LUN_info;
4651 ioc_swab.Request = ioc32->Request;
4652 ioc_swab.error_info = ioc32->error_info;
4653 ioc_swab.buf_size = ioc32->buf_size;
4654 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4655 ioc = &ioc_swab;
4656 /* FALLTHROUGH */
4657#endif
4658
4659 case CCISS_PASSTHRU:
4660 error = ciss_user_command(sc, ioc);
4661 break;
4662
4663 default:
4664 debug(0, "unknown ioctl 0x%lx", cmd);
4665
4666 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4667 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4668 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4669 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4670 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4671 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4672 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4673 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4674 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4675 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4676 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4677
4678 error = ENOIOCTL;
4679 break;
4680 }
4681
4682 mtx_unlock(&sc->ciss_mtx);
4683 return(error);
4684}
| 2917 cam_sim_path(sc->ciss_cam_sim[bus]),
2918 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2919 ciss_printf(sc, "rescan failed (can't create path)\n");
2920 xpt_free_ccb(ccb);
2921 return;
2922 }
2923 xpt_rescan(ccb);
2924 /* scan is now in progress */
2925}
2926
2927/************************************************************************
2928 * Handle requests coming from CAM
2929 */
2930static void
2931ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2932{
2933 struct ciss_softc *sc;
2934 struct ccb_scsiio *csio;
2935 int bus, target;
2936 int physical;
2937
2938 sc = cam_sim_softc(sim);
2939 bus = cam_sim_bus(sim);
2940 csio = (struct ccb_scsiio *)&ccb->csio;
2941 target = csio->ccb_h.target_id;
2942 physical = CISS_IS_PHYSICAL(bus);
2943
2944 switch (ccb->ccb_h.func_code) {
2945
2946 /* perform SCSI I/O */
2947 case XPT_SCSI_IO:
2948 if (!ciss_cam_action_io(sim, csio))
2949 return;
2950 break;
2951
2952 /* perform geometry calculations */
2953 case XPT_CALC_GEOMETRY:
2954 {
2955 struct ccb_calc_geometry *ccg = &ccb->ccg;
2956 struct ciss_ldrive *ld;
2957
2958 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2959
2960 ld = NULL;
2961 if (!physical)
2962 ld = &sc->ciss_logical[bus][target];
2963
2964 /*
2965 * Use the cached geometry settings unless the fault tolerance
2966 * is invalid.
2967 */
2968 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
2969 u_int32_t secs_per_cylinder;
2970
2971 ccg->heads = 255;
2972 ccg->secs_per_track = 32;
2973 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2974 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2975 } else {
2976 ccg->heads = ld->cl_geometry.heads;
2977 ccg->secs_per_track = ld->cl_geometry.sectors;
2978 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2979 }
2980 ccb->ccb_h.status = CAM_REQ_CMP;
2981 break;
2982 }
2983
2984 /* handle path attribute inquiry */
2985 case XPT_PATH_INQ:
2986 {
2987 struct ccb_pathinq *cpi = &ccb->cpi;
2988
2989 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2990
2991 cpi->version_num = 1;
2992 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2993 cpi->target_sprt = 0;
2994 cpi->hba_misc = 0;
2995 cpi->max_target = sc->ciss_cfg->max_logical_supported;
2996 cpi->max_lun = 0; /* 'logical drive' channel only */
2997 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
2998 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2999 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
3000 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3001 cpi->unit_number = cam_sim_unit(sim);
3002 cpi->bus_id = cam_sim_bus(sim);
3003 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3004 cpi->transport = XPORT_SPI;
3005 cpi->transport_version = 2;
3006 cpi->protocol = PROTO_SCSI;
3007 cpi->protocol_version = SCSI_REV_2;
3008 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE;
3009 ccb->ccb_h.status = CAM_REQ_CMP;
3010 break;
3011 }
3012
3013 case XPT_GET_TRAN_SETTINGS:
3014 {
3015 struct ccb_trans_settings *cts = &ccb->cts;
3016 int bus, target;
3017 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3018 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3019
3020 bus = cam_sim_bus(sim);
3021 target = cts->ccb_h.target_id;
3022
3023 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3024 /* disconnect always OK */
3025 cts->protocol = PROTO_SCSI;
3026 cts->protocol_version = SCSI_REV_2;
3027 cts->transport = XPORT_SPI;
3028 cts->transport_version = 2;
3029
3030 spi->valid = CTS_SPI_VALID_DISC;
3031 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3032
3033 scsi->valid = CTS_SCSI_VALID_TQ;
3034 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3035
3036 cts->ccb_h.status = CAM_REQ_CMP;
3037 break;
3038 }
3039
3040 default: /* we can't do this */
3041 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3042 ccb->ccb_h.status = CAM_REQ_INVALID;
3043 break;
3044 }
3045
3046 xpt_done(ccb);
3047}
3048
3049/************************************************************************
3050 * Handle a CAM SCSI I/O request.
3051 */
3052static int
3053ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3054{
3055 struct ciss_softc *sc;
3056 int bus, target;
3057 struct ciss_request *cr;
3058 struct ciss_command *cc;
3059 int error;
3060
3061 sc = cam_sim_softc(sim);
3062 bus = cam_sim_bus(sim);
3063 target = csio->ccb_h.target_id;
3064
3065 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3066
3067 /* check that the CDB pointer is not to a physical address */
3068 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3069 debug(3, " CDB pointer is to physical address");
3070 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3071 }
3072
3073 /* abandon aborted ccbs or those that have failed validation */
3074 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3075 debug(3, "abandoning CCB due to abort/validation failure");
3076 return(EINVAL);
3077 }
3078
3079 /* handle emulation of some SCSI commands ourself */
3080 if (ciss_cam_emulate(sc, csio))
3081 return(0);
3082
3083 /*
3084 * Get a request to manage this command. If we can't, return the
3085 * ccb, freeze the queue and flag so that we unfreeze it when a
3086 * request completes.
3087 */
3088 if ((error = ciss_get_request(sc, &cr)) != 0) {
3089 xpt_freeze_simq(sim, 1);
3090 sc->ciss_flags |= CISS_FLAG_BUSY;
3091 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3092 return(error);
3093 }
3094
3095 /*
3096 * Build the command.
3097 */
3098 cc = cr->cr_cc;
3099 cr->cr_data = csio;
3100 cr->cr_length = csio->dxfer_len;
3101 cr->cr_complete = ciss_cam_complete;
3102 cr->cr_private = csio;
3103
3104 /*
3105 * Target the right logical volume.
3106 */
3107 if (CISS_IS_PHYSICAL(bus))
3108 cc->header.address =
3109 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3110 else
3111 cc->header.address =
3112 sc->ciss_logical[bus][target].cl_address;
3113 cc->cdb.cdb_length = csio->cdb_len;
3114 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3115 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3116 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3117 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3118 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3119 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3120 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3121 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3122 } else {
3123 cr->cr_data = NULL;
3124 cr->cr_flags = 0;
3125 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3126 }
3127 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3128 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3129 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3130 } else {
3131 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3132 }
3133
3134 /*
3135 * Submit the request to the adapter.
3136 *
3137 * Note that this may fail if we're unable to map the request (and
3138 * if we ever learn a transport layer other than simple, may fail
3139 * if the adapter rejects the command).
3140 */
3141 if ((error = ciss_start(cr)) != 0) {
3142 xpt_freeze_simq(sim, 1);
3143 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3144 if (error == EINPROGRESS) {
3145 error = 0;
3146 } else {
3147 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3148 ciss_release_request(cr);
3149 }
3150 return(error);
3151 }
3152
3153 return(0);
3154}
3155
3156/************************************************************************
3157 * Emulate SCSI commands the adapter doesn't handle as we might like.
3158 */
3159static int
3160ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3161{
3162 int bus, target;
3163 u_int8_t opcode;
3164
3165 target = csio->ccb_h.target_id;
3166 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3167 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3168 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3169
3170 if (CISS_IS_PHYSICAL(bus)) {
3171 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3172 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3173 xpt_done((union ccb *)csio);
3174 return(1);
3175 } else
3176 return(0);
3177 }
3178
3179 /*
3180 * Handle requests for volumes that don't exist or are not online.
3181 * A selection timeout is slightly better than an illegal request.
3182 * Other errors might be better.
3183 */
3184 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3185 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3186 xpt_done((union ccb *)csio);
3187 return(1);
3188 }
3189
3190 /* if we have to fake Synchronise Cache */
3191 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3192 /*
3193 * If this is a Synchronise Cache command, typically issued when
3194 * a device is closed, flush the adapter and complete now.
3195 */
3196 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3197 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3198 ciss_flush_adapter(sc);
3199 csio->ccb_h.status |= CAM_REQ_CMP;
3200 xpt_done((union ccb *)csio);
3201 return(1);
3202 }
3203 }
3204
3205 return(0);
3206}
3207
3208/************************************************************************
3209 * Check for possibly-completed commands.
3210 */
3211static void
3212ciss_cam_poll(struct cam_sim *sim)
3213{
3214 cr_qhead_t qh;
3215 struct ciss_softc *sc = cam_sim_softc(sim);
3216
3217 debug_called(2);
3218
3219 STAILQ_INIT(&qh);
3220 if (sc->ciss_perf)
3221 ciss_perf_done(sc, &qh);
3222 else
3223 ciss_done(sc, &qh);
3224 ciss_complete(sc, &qh);
3225}
3226
3227/************************************************************************
3228 * Handle completion of a command - pass results back through the CCB
3229 */
3230static void
3231ciss_cam_complete(struct ciss_request *cr)
3232{
3233 struct ciss_softc *sc;
3234 struct ciss_command *cc;
3235 struct ciss_error_info *ce;
3236 struct ccb_scsiio *csio;
3237 int scsi_status;
3238 int command_status;
3239
3240 debug_called(2);
3241
3242 sc = cr->cr_sc;
3243 cc = cr->cr_cc;
3244 ce = (struct ciss_error_info *)&(cc->sg[0]);
3245 csio = (struct ccb_scsiio *)cr->cr_private;
3246
3247 /*
3248 * Extract status values from request.
3249 */
3250 ciss_report_request(cr, &command_status, &scsi_status);
3251 csio->scsi_status = scsi_status;
3252
3253 /*
3254 * Handle specific SCSI status values.
3255 */
3256 switch(scsi_status) {
3257 /* no status due to adapter error */
3258 case -1:
3259 debug(0, "adapter error");
3260 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3261 break;
3262
3263 /* no status due to command completed OK */
3264 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3265 debug(2, "SCSI_STATUS_OK");
3266 csio->ccb_h.status |= CAM_REQ_CMP;
3267 break;
3268
3269 /* check condition, sense data included */
3270 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3271 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3272 ce->sense_length, ce->residual_count);
3273 bzero(&csio->sense_data, SSD_FULL_SIZE);
3274 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3275 if (csio->sense_len > ce->sense_length)
3276 csio->sense_resid = csio->sense_len - ce->sense_length;
3277 else
3278 csio->sense_resid = 0;
3279 csio->resid = ce->residual_count;
3280 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3281#ifdef CISS_DEBUG
3282 {
3283 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3284 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3285 csio->sense_resid, /*show_errors*/ 1));
3286 }
3287#endif
3288 break;
3289
3290 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3291 debug(0, "SCSI_STATUS_BUSY");
3292 csio->ccb_h.status |= CAM_SCSI_BUSY;
3293 break;
3294
3295 default:
3296 debug(0, "unknown status 0x%x", csio->scsi_status);
3297 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3298 break;
3299 }
3300
3301 /* handle post-command fixup */
3302 ciss_cam_complete_fixup(sc, csio);
3303
3304 ciss_release_request(cr);
3305 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3306 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3307 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3308 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3309 else
3310 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3311 }
3312 xpt_done((union ccb *)csio);
3313}
3314
3315/********************************************************************************
3316 * Fix up the result of some commands here.
3317 */
3318static void
3319ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3320{
3321 struct scsi_inquiry_data *inq;
3322 struct ciss_ldrive *cl;
3323 uint8_t *cdb;
3324 int bus, target;
3325
3326 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3327 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3328 if (cdb[0] == INQUIRY &&
3329 (cdb[1] & SI_EVPD) == 0 &&
3330 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3331 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3332
3333 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3334 target = csio->ccb_h.target_id;
3335 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3336
3337 /*
3338 * Don't let hard drives be seen by the DA driver. They will still be
3339 * attached by the PASS driver.
3340 */
3341 if (CISS_IS_PHYSICAL(bus)) {
3342 if (SID_TYPE(inq) == T_DIRECT)
3343 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3344 return;
3345 }
3346
3347 cl = &sc->ciss_logical[bus][target];
3348
3349 padstr(inq->vendor, "COMPAQ",
3350 SID_VENDOR_SIZE);
3351 padstr(inq->product,
3352 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3353 SID_PRODUCT_SIZE);
3354 padstr(inq->revision,
3355 ciss_name_ldrive_status(cl->cl_lstatus->status),
3356 SID_REVISION_SIZE);
3357 }
3358}
3359
3360
3361/********************************************************************************
3362 * Find a peripheral attached at (target)
3363 */
3364static struct cam_periph *
3365ciss_find_periph(struct ciss_softc *sc, int bus, int target)
3366{
3367 struct cam_periph *periph;
3368 struct cam_path *path;
3369 int status;
3370
3371 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3372 target, 0);
3373 if (status == CAM_REQ_CMP) {
3374 periph = cam_periph_find(path, NULL);
3375 xpt_free_path(path);
3376 } else {
3377 periph = NULL;
3378 }
3379 return(periph);
3380}
3381
3382/********************************************************************************
3383 * Name the device at (target)
3384 *
3385 * XXX is this strictly correct?
3386 */
3387static int
3388ciss_name_device(struct ciss_softc *sc, int bus, int target)
3389{
3390 struct cam_periph *periph;
3391
3392 if (CISS_IS_PHYSICAL(bus))
3393 return (0);
3394 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) {
3395 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3396 periph->periph_name, periph->unit_number);
3397 return(0);
3398 }
3399 sc->ciss_logical[bus][target].cl_name[0] = 0;
3400 return(ENOENT);
3401}
3402
3403/************************************************************************
3404 * Periodic status monitoring.
3405 */
3406static void
3407ciss_periodic(void *arg)
3408{
3409 struct ciss_softc *sc;
3410 struct ciss_request *cr = NULL;
3411 struct ciss_command *cc = NULL;
3412 int error = 0;
3413
3414 debug_called(1);
3415
3416 sc = (struct ciss_softc *)arg;
3417
3418 /*
3419 * Check the adapter heartbeat.
3420 */
3421 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3422 sc->ciss_heart_attack++;
3423 debug(0, "adapter heart attack in progress 0x%x/%d",
3424 sc->ciss_heartbeat, sc->ciss_heart_attack);
3425 if (sc->ciss_heart_attack == 3) {
3426 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3427 ciss_disable_adapter(sc);
3428 return;
3429 }
3430 } else {
3431 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3432 sc->ciss_heart_attack = 0;
3433 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3434 }
3435
3436 /*
3437 * Send the NOP message and wait for a response.
3438 */
3439 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3440 cc = cr->cr_cc;
3441 cr->cr_complete = ciss_nop_complete;
3442 cc->cdb.cdb_length = 1;
3443 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3444 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3445 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3446 cc->cdb.timeout = 0;
3447 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3448
3449 if ((error = ciss_start(cr)) != 0) {
3450 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3451 }
3452 }
3453
3454 /*
3455 * If the notify event request has died for some reason, or has
3456 * not started yet, restart it.
3457 */
3458 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3459 debug(0, "(re)starting Event Notify chain");
3460 ciss_notify_event(sc);
3461 }
3462
3463 /*
3464 * Reschedule.
3465 */
3466 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3467}
3468
3469static void
3470ciss_nop_complete(struct ciss_request *cr)
3471{
3472 struct ciss_softc *sc;
3473 static int first_time = 1;
3474
3475 sc = cr->cr_sc;
3476 if (ciss_report_request(cr, NULL, NULL) != 0) {
3477 if (first_time == 1) {
3478 first_time = 0;
3479 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3480 }
3481 }
3482
3483 ciss_release_request(cr);
3484}
3485
3486/************************************************************************
3487 * Disable the adapter.
3488 *
3489 * The all requests in completed queue is failed with hardware error.
3490 * This will cause failover in a multipath configuration.
3491 */
3492static void
3493ciss_disable_adapter(struct ciss_softc *sc)
3494{
3495 cr_qhead_t qh;
3496 struct ciss_request *cr;
3497 struct ciss_command *cc;
3498 struct ciss_error_info *ce;
3499 int i;
3500
3501 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3502 pci_disable_busmaster(sc->ciss_dev);
3503 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3504
3505 for (i = 1; i < sc->ciss_max_requests; i++) {
3506 cr = &sc->ciss_request[i];
3507 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3508 continue;
3509
3510 cc = cr->cr_cc;
3511 ce = (struct ciss_error_info *)&(cc->sg[0]);
3512 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3513 ciss_enqueue_complete(cr, &qh);
3514 }
3515
3516 for (;;) {
3517 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3518 break;
3519
3520 /*
3521 * If the request has a callback, invoke it.
3522 */
3523 if (cr->cr_complete != NULL) {
3524 cr->cr_complete(cr);
3525 continue;
3526 }
3527
3528 /*
3529 * If someone is sleeping on this request, wake them up.
3530 */
3531 if (cr->cr_flags & CISS_REQ_SLEEP) {
3532 cr->cr_flags &= ~CISS_REQ_SLEEP;
3533 wakeup(cr);
3534 continue;
3535 }
3536 }
3537}
3538
3539/************************************************************************
3540 * Request a notification response from the adapter.
3541 *
3542 * If (cr) is NULL, this is the first request of the adapter, so
3543 * reset the adapter's message pointer and start with the oldest
3544 * message available.
3545 */
3546static void
3547ciss_notify_event(struct ciss_softc *sc)
3548{
3549 struct ciss_request *cr;
3550 struct ciss_command *cc;
3551 struct ciss_notify_cdb *cnc;
3552 int error;
3553
3554 debug_called(1);
3555
3556 cr = sc->ciss_periodic_notify;
3557
3558 /* get a request if we don't already have one */
3559 if (cr == NULL) {
3560 if ((error = ciss_get_request(sc, &cr)) != 0) {
3561 debug(0, "can't get notify event request");
3562 goto out;
3563 }
3564 sc->ciss_periodic_notify = cr;
3565 cr->cr_complete = ciss_notify_complete;
3566 debug(1, "acquired request %d", cr->cr_tag);
3567 }
3568
3569 /*
3570 * Get a databuffer if we don't already have one, note that the
3571 * adapter command wants a larger buffer than the actual
3572 * structure.
3573 */
3574 if (cr->cr_data == NULL) {
3575 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3576 debug(0, "can't get notify event request buffer");
3577 error = ENOMEM;
3578 goto out;
3579 }
3580 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3581 }
3582
3583 /* re-setup the request's command (since we never release it) XXX overkill*/
3584 ciss_preen_command(cr);
3585
3586 /* (re)build the notify event command */
3587 cc = cr->cr_cc;
3588 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3589 cc->header.address.physical.bus = 0;
3590 cc->header.address.physical.target = 0;
3591
3592 cc->cdb.cdb_length = sizeof(*cnc);
3593 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3594 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3595 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3596 cc->cdb.timeout = 0; /* no timeout, we hope */
3597
3598 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3599 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3600 cnc->opcode = CISS_OPCODE_READ;
3601 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3602 cnc->timeout = 0; /* no timeout, we hope */
3603 cnc->synchronous = 0;
3604 cnc->ordered = 0;
3605 cnc->seek_to_oldest = 0;
3606 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3607 cnc->new_only = 1;
3608 else
3609 cnc->new_only = 0;
3610 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3611
3612 /* submit the request */
3613 error = ciss_start(cr);
3614
3615 out:
3616 if (error) {
3617 if (cr != NULL) {
3618 if (cr->cr_data != NULL)
3619 free(cr->cr_data, CISS_MALLOC_CLASS);
3620 ciss_release_request(cr);
3621 }
3622 sc->ciss_periodic_notify = NULL;
3623 debug(0, "can't submit notify event request");
3624 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3625 } else {
3626 debug(1, "notify event submitted");
3627 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3628 }
3629}
3630
3631static void
3632ciss_notify_complete(struct ciss_request *cr)
3633{
3634 struct ciss_command *cc;
3635 struct ciss_notify *cn;
3636 struct ciss_softc *sc;
3637 int scsi_status;
3638 int command_status;
3639 debug_called(1);
3640
3641 cc = cr->cr_cc;
3642 cn = (struct ciss_notify *)cr->cr_data;
3643 sc = cr->cr_sc;
3644
3645 /*
3646 * Report request results, decode status.
3647 */
3648 ciss_report_request(cr, &command_status, &scsi_status);
3649
3650 /*
3651 * Abort the chain on a fatal error.
3652 *
3653 * XXX which of these are actually errors?
3654 */
3655 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3656 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3657 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3658 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3659 ciss_name_command_status(command_status));
3660 ciss_release_request(cr);
3661 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3662 return;
3663 }
3664
3665 /*
3666 * If the adapter gave us a text message, print it.
3667 */
3668 if (cn->message[0] != 0)
3669 ciss_printf(sc, "*** %.80s\n", cn->message);
3670
3671 debug(0, "notify event class %d subclass %d detail %d",
3672 cn->class, cn->subclass, cn->detail);
3673
3674 /*
3675 * If the response indicates that the notifier has been aborted,
3676 * release the notifier command.
3677 */
3678 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3679 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3680 (cn->detail == 1)) {
3681 debug(0, "notifier exiting");
3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3683 ciss_release_request(cr);
3684 sc->ciss_periodic_notify = NULL;
3685 wakeup(&sc->ciss_periodic_notify);
3686 } else {
3687 /* Handle notify events in a kernel thread */
3688 ciss_enqueue_notify(cr);
3689 sc->ciss_periodic_notify = NULL;
3690 wakeup(&sc->ciss_periodic_notify);
3691 wakeup(&sc->ciss_notify);
3692 }
3693 /*
3694 * Send a new notify event command, if we're not aborting.
3695 */
3696 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3697 ciss_notify_event(sc);
3698 }
3699}
3700
3701/************************************************************************
3702 * Abort the Notify Event chain.
3703 *
3704 * Note that we can't just abort the command in progress; we have to
3705 * explicitly issue an Abort Notify Event command in order for the
3706 * adapter to clean up correctly.
3707 *
3708 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3709 * the chain will not restart itself.
3710 */
3711static int
3712ciss_notify_abort(struct ciss_softc *sc)
3713{
3714 struct ciss_request *cr;
3715 struct ciss_command *cc;
3716 struct ciss_notify_cdb *cnc;
3717 int error, command_status, scsi_status;
3718
3719 debug_called(1);
3720
3721 cr = NULL;
3722 error = 0;
3723
3724 /* verify that there's an outstanding command */
3725 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3726 goto out;
3727
3728 /* get a command to issue the abort with */
3729 if ((error = ciss_get_request(sc, &cr)))
3730 goto out;
3731
3732 /* get a buffer for the result */
3733 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3734 debug(0, "can't get notify event request buffer");
3735 error = ENOMEM;
3736 goto out;
3737 }
3738 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3739
3740 /* build the CDB */
3741 cc = cr->cr_cc;
3742 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3743 cc->header.address.physical.bus = 0;
3744 cc->header.address.physical.target = 0;
3745 cc->cdb.cdb_length = sizeof(*cnc);
3746 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3747 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3748 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3749 cc->cdb.timeout = 0; /* no timeout, we hope */
3750
3751 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3752 bzero(cnc, sizeof(*cnc));
3753 cnc->opcode = CISS_OPCODE_WRITE;
3754 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3755 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3756
3757 ciss_print_request(cr);
3758
3759 /*
3760 * Submit the request and wait for it to complete.
3761 */
3762 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3763 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3764 goto out;
3765 }
3766
3767 /*
3768 * Check response.
3769 */
3770 ciss_report_request(cr, &command_status, &scsi_status);
3771 switch(command_status) {
3772 case CISS_CMD_STATUS_SUCCESS:
3773 break;
3774 case CISS_CMD_STATUS_INVALID_COMMAND:
3775 /*
3776 * Some older adapters don't support the CISS version of this
3777 * command. Fall back to using the BMIC version.
3778 */
3779 error = ciss_notify_abort_bmic(sc);
3780 if (error != 0)
3781 goto out;
3782 break;
3783
3784 case CISS_CMD_STATUS_TARGET_STATUS:
3785 /*
3786 * This can happen if the adapter thinks there wasn't an outstanding
3787 * Notify Event command but we did. We clean up here.
3788 */
3789 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3790 if (sc->ciss_periodic_notify != NULL)
3791 ciss_release_request(sc->ciss_periodic_notify);
3792 error = 0;
3793 goto out;
3794 }
3795 /* FALLTHROUGH */
3796
3797 default:
3798 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3799 ciss_name_command_status(command_status));
3800 error = EIO;
3801 goto out;
3802 }
3803
3804 /*
3805 * Sleep waiting for the notifier command to complete. Note
3806 * that if it doesn't, we may end up in a bad situation, since
3807 * the adapter may deliver it later. Also note that the adapter
3808 * requires the Notify Event command to be cancelled in order to
3809 * maintain internal bookkeeping.
3810 */
3811 while (sc->ciss_periodic_notify != NULL) {
3812 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3813 if (error == EWOULDBLOCK) {
3814 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3815 break;
3816 }
3817 }
3818
3819 out:
3820 /* release the cancel request */
3821 if (cr != NULL) {
3822 if (cr->cr_data != NULL)
3823 free(cr->cr_data, CISS_MALLOC_CLASS);
3824 ciss_release_request(cr);
3825 }
3826 if (error == 0)
3827 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3828 return(error);
3829}
3830
3831/************************************************************************
3832 * Abort the Notify Event chain using a BMIC command.
3833 */
3834static int
3835ciss_notify_abort_bmic(struct ciss_softc *sc)
3836{
3837 struct ciss_request *cr;
3838 int error, command_status;
3839
3840 debug_called(1);
3841
3842 cr = NULL;
3843 error = 0;
3844
3845 /* verify that there's an outstanding command */
3846 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3847 goto out;
3848
3849 /*
3850 * Build a BMIC command to cancel the Notify on Event command.
3851 *
3852 * Note that we are sending a CISS opcode here. Odd.
3853 */
3854 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3855 NULL, 0)) != 0)
3856 goto out;
3857
3858 /*
3859 * Submit the request and wait for it to complete.
3860 */
3861 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3862 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3863 goto out;
3864 }
3865
3866 /*
3867 * Check response.
3868 */
3869 ciss_report_request(cr, &command_status, NULL);
3870 switch(command_status) {
3871 case CISS_CMD_STATUS_SUCCESS:
3872 break;
3873 default:
3874 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3875 ciss_name_command_status(command_status));
3876 error = EIO;
3877 goto out;
3878 }
3879
3880out:
3881 if (cr != NULL)
3882 ciss_release_request(cr);
3883 return(error);
3884}
3885
3886/************************************************************************
3887 * Handle rescanning all the logical volumes when a notify event
3888 * causes the drives to come online or offline.
3889 */
3890static void
3891ciss_notify_rescan_logical(struct ciss_softc *sc)
3892{
3893 struct ciss_lun_report *cll;
3894 struct ciss_ldrive *ld;
3895 int i, j, ndrives;
3896
3897 /*
3898 * We must rescan all logical volumes to get the right logical
3899 * drive address.
3900 */
3901 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3902 sc->ciss_cfg->max_logical_supported);
3903 if (cll == NULL)
3904 return;
3905
3906 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3907
3908 /*
3909 * Delete any of the drives which were destroyed by the
3910 * firmware.
3911 */
3912 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3913 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3914 ld = &sc->ciss_logical[i][j];
3915
3916 if (ld->cl_update == 0)
3917 continue;
3918
3919 if (ld->cl_status != CISS_LD_ONLINE) {
3920 ciss_cam_rescan_target(sc, i, j);
3921 ld->cl_update = 0;
3922 if (ld->cl_ldrive)
3923 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3924 if (ld->cl_lstatus)
3925 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3926
3927 ld->cl_ldrive = NULL;
3928 ld->cl_lstatus = NULL;
3929 }
3930 }
3931 }
3932
3933 /*
3934 * Scan for new drives.
3935 */
3936 for (i = 0; i < ndrives; i++) {
3937 int bus, target;
3938
3939 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3940 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3941 ld = &sc->ciss_logical[bus][target];
3942
3943 if (ld->cl_update == 0)
3944 continue;
3945
3946 ld->cl_update = 0;
3947 ld->cl_address = cll->lun[i];
3948 ld->cl_controller = &sc->ciss_controllers[bus];
3949 if (ciss_identify_logical(sc, ld) == 0) {
3950 ciss_cam_rescan_target(sc, bus, target);
3951 }
3952 }
3953 free(cll, CISS_MALLOC_CLASS);
3954}
3955
3956/************************************************************************
3957 * Handle a notify event relating to the status of a logical drive.
3958 *
3959 * XXX need to be able to defer some of these to properly handle
3960 * calling the "ID Physical drive" command, unless the 'extended'
3961 * drive IDs are always in BIG_MAP format.
3962 */
3963static void
3964ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
3965{
3966 struct ciss_ldrive *ld;
3967 int bus, target;
3968 int rescan_ld;
3969
3970 debug_called(2);
3971
3972 bus = cn->device.physical.bus;
3973 target = cn->data.logical_status.logical_drive;
3974 ld = &sc->ciss_logical[bus][target];
3975
3976 switch (cn->subclass) {
3977 case CISS_NOTIFY_LOGICAL_STATUS:
3978 switch (cn->detail) {
3979 case 0:
3980 ciss_name_device(sc, bus, target);
3981 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3982 cn->data.logical_status.logical_drive, ld->cl_name,
3983 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3984 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3985 cn->data.logical_status.spare_state,
3986 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3987
3988 /*
3989 * Update our idea of the drive's status.
3990 */
3991 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3992 if (ld->cl_lstatus != NULL)
3993 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3994
3995 /*
3996 * Have CAM rescan the drive if its status has changed.
3997 */
3998 rescan_ld = (cn->data.logical_status.previous_state !=
3999 cn->data.logical_status.new_state) ? 1 : 0;
4000 if (rescan_ld) {
4001 ld->cl_update = 1;
4002 ciss_notify_rescan_logical(sc);
4003 }
4004
4005 break;
4006
4007 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4008 ciss_name_device(sc, bus, target);
4009 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4010 cn->data.logical_status.logical_drive, ld->cl_name);
4011 ciss_accept_media(sc, ld);
4012
4013 ld->cl_update = 1;
4014 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4015 ciss_notify_rescan_logical(sc);
4016 break;
4017
4018 case 2:
4019 case 3:
4020 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4021 cn->data.rebuild_aborted.logical_drive,
4022 ld->cl_name,
4023 (cn->detail == 2) ? "read" : "write");
4024 break;
4025 }
4026 break;
4027
4028 case CISS_NOTIFY_LOGICAL_ERROR:
4029 if (cn->detail == 0) {
4030 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4031 cn->data.io_error.logical_drive,
4032 ld->cl_name,
4033 cn->data.io_error.failure_bus,
4034 cn->data.io_error.failure_drive);
4035 /* XXX should we take the drive down at this point, or will we be told? */
4036 }
4037 break;
4038
4039 case CISS_NOTIFY_LOGICAL_SURFACE:
4040 if (cn->detail == 0)
4041 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4042 cn->data.consistency_completed.logical_drive,
4043 ld->cl_name);
4044 break;
4045 }
4046}
4047
4048/************************************************************************
4049 * Handle a notify event relating to the status of a physical drive.
4050 */
4051static void
4052ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4053{
4054}
4055
4056/************************************************************************
4057 * Handle a notify event relating to the status of a physical drive.
4058 */
4059static void
4060ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4061{
4062 struct ciss_lun_report *cll = NULL;
4063 int bus, target;
4064
4065 switch (cn->subclass) {
4066 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4067 case CISS_NOTIFY_HOTPLUG_NONDISK:
4068 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4069 target =
4070 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4071
4072 if (cn->detail == 0) {
4073 /*
4074 * Mark the device offline so that it'll start producing selection
4075 * timeouts to the upper layer.
4076 */
4077 if ((bus >= 0) && (target >= 0))
4078 sc->ciss_physical[bus][target].cp_online = 0;
4079 } else {
4080 /*
4081 * Rescan the physical lun list for new items
4082 */
4083 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4084 sc->ciss_cfg->max_physical_supported);
4085 if (cll == NULL) {
4086 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4087 break;
4088 }
4089 ciss_filter_physical(sc, cll);
4090 }
4091 break;
4092
4093 default:
4094 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4095 return;
4096 }
4097
4098 if (cll != NULL)
4099 free(cll, CISS_MALLOC_CLASS);
4100}
4101
4102/************************************************************************
4103 * Handle deferred processing of notify events. Notify events may need
4104 * sleep which is unsafe during an interrupt.
4105 */
4106static void
4107ciss_notify_thread(void *arg)
4108{
4109 struct ciss_softc *sc;
4110 struct ciss_request *cr;
4111 struct ciss_notify *cn;
4112
4113 sc = (struct ciss_softc *)arg;
4114#if __FreeBSD_version >= 500000
4115 mtx_lock(&sc->ciss_mtx);
4116#endif
4117
4118 for (;;) {
4119 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4120 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4121 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4122 }
4123
4124 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4125 break;
4126
4127 cr = ciss_dequeue_notify(sc);
4128
4129 if (cr == NULL)
4130 panic("cr null");
4131 cn = (struct ciss_notify *)cr->cr_data;
4132
4133 switch (cn->class) {
4134 case CISS_NOTIFY_HOTPLUG:
4135 ciss_notify_hotplug(sc, cn);
4136 break;
4137 case CISS_NOTIFY_LOGICAL:
4138 ciss_notify_logical(sc, cn);
4139 break;
4140 case CISS_NOTIFY_PHYSICAL:
4141 ciss_notify_physical(sc, cn);
4142 break;
4143 }
4144
4145 ciss_release_request(cr);
4146
4147 }
4148 sc->ciss_notify_thread = NULL;
4149 wakeup(&sc->ciss_notify_thread);
4150
4151#if __FreeBSD_version >= 500000
4152 mtx_unlock(&sc->ciss_mtx);
4153#endif
4154 kproc_exit(0);
4155}
4156
4157/************************************************************************
4158 * Start the notification kernel thread.
4159 */
4160static void
4161ciss_spawn_notify_thread(struct ciss_softc *sc)
4162{
4163
4164#if __FreeBSD_version > 500005
4165 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4166 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4167 device_get_unit(sc->ciss_dev)))
4168#else
4169 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4170 &sc->ciss_notify_thread, "ciss_notify%d",
4171 device_get_unit(sc->ciss_dev)))
4172#endif
4173 panic("Could not create notify thread\n");
4174}
4175
4176/************************************************************************
4177 * Kill the notification kernel thread.
4178 */
4179static void
4180ciss_kill_notify_thread(struct ciss_softc *sc)
4181{
4182
4183 if (sc->ciss_notify_thread == NULL)
4184 return;
4185
4186 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4187 wakeup(&sc->ciss_notify);
4188 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4189}
4190
4191/************************************************************************
4192 * Print a request.
4193 */
4194static void
4195ciss_print_request(struct ciss_request *cr)
4196{
4197 struct ciss_softc *sc;
4198 struct ciss_command *cc;
4199 int i;
4200
4201 sc = cr->cr_sc;
4202 cc = cr->cr_cc;
4203
4204 ciss_printf(sc, "REQUEST @ %p\n", cr);
4205 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4206 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4207 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4208 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4209 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4210 switch(cc->header.address.mode.mode) {
4211 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4212 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4213 ciss_printf(sc, " physical bus %d target %d\n",
4214 cc->header.address.physical.bus, cc->header.address.physical.target);
4215 break;
4216 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4217 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4218 break;
4219 }
4220 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4221 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4222 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4223 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4224 cc->cdb.cdb_length,
4225 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4226 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4227 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4228 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4229 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4230 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4231 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4232 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4233
4234 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4235 /* XXX print error info */
4236 } else {
4237 /* since we don't use chained s/g, don't support it here */
4238 for (i = 0; i < cc->header.sg_in_list; i++) {
4239 if ((i % 4) == 0)
4240 ciss_printf(sc, " ");
4241 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4242 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4243 printf("\n");
4244 }
4245 }
4246}
4247
4248/************************************************************************
4249 * Print information about the status of a logical drive.
4250 */
4251static void
4252ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4253{
4254 int bus, target, i;
4255
4256 if (ld->cl_lstatus == NULL) {
4257 printf("does not exist\n");
4258 return;
4259 }
4260
4261 /* print drive status */
4262 switch(ld->cl_lstatus->status) {
4263 case CISS_LSTATUS_OK:
4264 printf("online\n");
4265 break;
4266 case CISS_LSTATUS_INTERIM_RECOVERY:
4267 printf("in interim recovery mode\n");
4268 break;
4269 case CISS_LSTATUS_READY_RECOVERY:
4270 printf("ready to begin recovery\n");
4271 break;
4272 case CISS_LSTATUS_RECOVERING:
4273 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4274 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4275 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4276 bus, target, ld->cl_lstatus->blocks_to_recover);
4277 break;
4278 case CISS_LSTATUS_EXPANDING:
4279 printf("being expanded, %u blocks remaining\n",
4280 ld->cl_lstatus->blocks_to_recover);
4281 break;
4282 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4283 printf("queued for expansion\n");
4284 break;
4285 case CISS_LSTATUS_FAILED:
4286 printf("queued for expansion\n");
4287 break;
4288 case CISS_LSTATUS_WRONG_PDRIVE:
4289 printf("wrong physical drive inserted\n");
4290 break;
4291 case CISS_LSTATUS_MISSING_PDRIVE:
4292 printf("missing a needed physical drive\n");
4293 break;
4294 case CISS_LSTATUS_BECOMING_READY:
4295 printf("becoming ready\n");
4296 break;
4297 }
4298
4299 /* print failed physical drives */
4300 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4301 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4302 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4303 if (bus == -1)
4304 continue;
4305 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4306 ld->cl_lstatus->drive_failure_map[i]);
4307 }
4308}
4309
4310#ifdef CISS_DEBUG
4311#include "opt_ddb.h"
4312#ifdef DDB
4313#include <ddb/ddb.h>
4314/************************************************************************
4315 * Print information about the controller/driver.
4316 */
4317static void
4318ciss_print_adapter(struct ciss_softc *sc)
4319{
4320 int i, j;
4321
4322 ciss_printf(sc, "ADAPTER:\n");
4323 for (i = 0; i < CISSQ_COUNT; i++) {
4324 ciss_printf(sc, "%s %d/%d\n",
4325 i == 0 ? "free" :
4326 i == 1 ? "busy" : "complete",
4327 sc->ciss_qstat[i].q_length,
4328 sc->ciss_qstat[i].q_max);
4329 }
4330 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4331 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4332 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4333
4334 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4335 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4336 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4337 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4338 }
4339 }
4340
4341 /* XXX Should physical drives be printed out here? */
4342
4343 for (i = 1; i < sc->ciss_max_requests; i++)
4344 ciss_print_request(sc->ciss_request + i);
4345}
4346
4347/* DDB hook */
4348DB_COMMAND(ciss_prt, db_ciss_prt)
4349{
4350 struct ciss_softc *sc;
4351
4352 sc = devclass_get_softc(devclass_find("ciss"), 0);
4353 if (sc == NULL) {
4354 printf("no ciss controllers\n");
4355 } else {
4356 ciss_print_adapter(sc);
4357 }
4358}
4359#endif
4360#endif
4361
4362/************************************************************************
4363 * Return a name for a logical drive status value.
4364 */
4365static const char *
4366ciss_name_ldrive_status(int status)
4367{
4368 switch (status) {
4369 case CISS_LSTATUS_OK:
4370 return("OK");
4371 case CISS_LSTATUS_FAILED:
4372 return("failed");
4373 case CISS_LSTATUS_NOT_CONFIGURED:
4374 return("not configured");
4375 case CISS_LSTATUS_INTERIM_RECOVERY:
4376 return("interim recovery");
4377 case CISS_LSTATUS_READY_RECOVERY:
4378 return("ready for recovery");
4379 case CISS_LSTATUS_RECOVERING:
4380 return("recovering");
4381 case CISS_LSTATUS_WRONG_PDRIVE:
4382 return("wrong physical drive inserted");
4383 case CISS_LSTATUS_MISSING_PDRIVE:
4384 return("missing physical drive");
4385 case CISS_LSTATUS_EXPANDING:
4386 return("expanding");
4387 case CISS_LSTATUS_BECOMING_READY:
4388 return("becoming ready");
4389 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4390 return("queued for expansion");
4391 }
4392 return("unknown status");
4393}
4394
4395/************************************************************************
4396 * Return an online/offline/nonexistent value for a logical drive
4397 * status value.
4398 */
4399static int
4400ciss_decode_ldrive_status(int status)
4401{
4402 switch(status) {
4403 case CISS_LSTATUS_NOT_CONFIGURED:
4404 return(CISS_LD_NONEXISTENT);
4405
4406 case CISS_LSTATUS_OK:
4407 case CISS_LSTATUS_INTERIM_RECOVERY:
4408 case CISS_LSTATUS_READY_RECOVERY:
4409 case CISS_LSTATUS_RECOVERING:
4410 case CISS_LSTATUS_EXPANDING:
4411 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4412 return(CISS_LD_ONLINE);
4413
4414 case CISS_LSTATUS_FAILED:
4415 case CISS_LSTATUS_WRONG_PDRIVE:
4416 case CISS_LSTATUS_MISSING_PDRIVE:
4417 case CISS_LSTATUS_BECOMING_READY:
4418 default:
4419 return(CISS_LD_OFFLINE);
4420 }
4421}
4422
4423
4424/************************************************************************
4425 * Return a name for a logical drive's organisation.
4426 */
4427static const char *
4428ciss_name_ldrive_org(int org)
4429{
4430 switch(org) {
4431 case CISS_LDRIVE_RAID0:
4432 return("RAID 0");
4433 case CISS_LDRIVE_RAID1:
4434 return("RAID 1(1+0)");
4435 case CISS_LDRIVE_RAID4:
4436 return("RAID 4");
4437 case CISS_LDRIVE_RAID5:
4438 return("RAID 5");
4439 case CISS_LDRIVE_RAID51:
4440 return("RAID 5+1");
4441 case CISS_LDRIVE_RAIDADG:
4442 return("RAID ADG");
4443 }
4444 return("unkown");
4445}
4446
4447/************************************************************************
4448 * Return a name for a command status value.
4449 */
4450static const char *
4451ciss_name_command_status(int status)
4452{
4453 switch(status) {
4454 case CISS_CMD_STATUS_SUCCESS:
4455 return("success");
4456 case CISS_CMD_STATUS_TARGET_STATUS:
4457 return("target status");
4458 case CISS_CMD_STATUS_DATA_UNDERRUN:
4459 return("data underrun");
4460 case CISS_CMD_STATUS_DATA_OVERRUN:
4461 return("data overrun");
4462 case CISS_CMD_STATUS_INVALID_COMMAND:
4463 return("invalid command");
4464 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4465 return("protocol error");
4466 case CISS_CMD_STATUS_HARDWARE_ERROR:
4467 return("hardware error");
4468 case CISS_CMD_STATUS_CONNECTION_LOST:
4469 return("connection lost");
4470 case CISS_CMD_STATUS_ABORTED:
4471 return("aborted");
4472 case CISS_CMD_STATUS_ABORT_FAILED:
4473 return("abort failed");
4474 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4475 return("unsolicited abort");
4476 case CISS_CMD_STATUS_TIMEOUT:
4477 return("timeout");
4478 case CISS_CMD_STATUS_UNABORTABLE:
4479 return("unabortable");
4480 }
4481 return("unknown status");
4482}
4483
4484/************************************************************************
4485 * Handle an open on the control device.
4486 */
4487static int
4488ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4489{
4490 struct ciss_softc *sc;
4491
4492 debug_called(1);
4493
4494 sc = (struct ciss_softc *)dev->si_drv1;
4495
4496 /* we might want to veto if someone already has us open */
4497
4498 mtx_lock(&sc->ciss_mtx);
4499 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4500 mtx_unlock(&sc->ciss_mtx);
4501 return(0);
4502}
4503
4504/************************************************************************
4505 * Handle the last close on the control device.
4506 */
4507static int
4508ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4509{
4510 struct ciss_softc *sc;
4511
4512 debug_called(1);
4513
4514 sc = (struct ciss_softc *)dev->si_drv1;
4515
4516 mtx_lock(&sc->ciss_mtx);
4517 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4518 mtx_unlock(&sc->ciss_mtx);
4519 return (0);
4520}
4521
4522/********************************************************************************
4523 * Handle adapter-specific control operations.
4524 *
4525 * Note that the API here is compatible with the Linux driver, in order to
4526 * simplify the porting of Compaq's userland tools.
4527 */
4528static int
4529ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4530{
4531 struct ciss_softc *sc;
4532 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4533#ifdef __amd64__
4534 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4535 IOCTL_Command_struct ioc_swab;
4536#endif
4537 int error;
4538
4539 debug_called(1);
4540
4541 sc = (struct ciss_softc *)dev->si_drv1;
4542 error = 0;
4543 mtx_lock(&sc->ciss_mtx);
4544
4545 switch(cmd) {
4546 case CCISS_GETQSTATS:
4547 {
4548 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4549
4550 switch (cr->cs_item) {
4551 case CISSQ_FREE:
4552 case CISSQ_NOTIFY:
4553 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4554 sizeof(struct ciss_qstat));
4555 break;
4556 default:
4557 error = ENOIOCTL;
4558 break;
4559 }
4560
4561 break;
4562 }
4563
4564 case CCISS_GETPCIINFO:
4565 {
4566 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4567
4568 pis->bus = pci_get_bus(sc->ciss_dev);
4569 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4570 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4571 pci_get_subdevice(sc->ciss_dev);
4572
4573 break;
4574 }
4575
4576 case CCISS_GETINTINFO:
4577 {
4578 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4579
4580 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4581 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4582
4583 break;
4584 }
4585
4586 case CCISS_SETINTINFO:
4587 {
4588 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4589
4590 if ((cis->delay == 0) && (cis->count == 0)) {
4591 error = EINVAL;
4592 break;
4593 }
4594
4595 /*
4596 * XXX apparently this is only safe if the controller is idle,
4597 * we should suspend it before doing this.
4598 */
4599 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4600 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4601
4602 if (ciss_update_config(sc))
4603 error = EIO;
4604
4605 /* XXX resume the controller here */
4606 break;
4607 }
4608
4609 case CCISS_GETNODENAME:
4610 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4611 sizeof(NodeName_type));
4612 break;
4613
4614 case CCISS_SETNODENAME:
4615 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4616 sizeof(NodeName_type));
4617 if (ciss_update_config(sc))
4618 error = EIO;
4619 break;
4620
4621 case CCISS_GETHEARTBEAT:
4622 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4623 break;
4624
4625 case CCISS_GETBUSTYPES:
4626 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4627 break;
4628
4629 case CCISS_GETFIRMVER:
4630 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4631 sizeof(FirmwareVer_type));
4632 break;
4633
4634 case CCISS_GETDRIVERVER:
4635 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4636 break;
4637
4638 case CCISS_REVALIDVOLS:
4639 /*
4640 * This is a bit ugly; to do it "right" we really need
4641 * to find any disks that have changed, kick CAM off them,
4642 * then rescan only these disks. It'd be nice if they
4643 * a) told us which disk(s) they were going to play with,
4644 * and b) which ones had arrived. 8(
4645 */
4646 break;
4647
4648#ifdef __amd64__
4649 case CCISS_PASSTHRU32:
4650 ioc_swab.LUN_info = ioc32->LUN_info;
4651 ioc_swab.Request = ioc32->Request;
4652 ioc_swab.error_info = ioc32->error_info;
4653 ioc_swab.buf_size = ioc32->buf_size;
4654 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4655 ioc = &ioc_swab;
4656 /* FALLTHROUGH */
4657#endif
4658
4659 case CCISS_PASSTHRU:
4660 error = ciss_user_command(sc, ioc);
4661 break;
4662
4663 default:
4664 debug(0, "unknown ioctl 0x%lx", cmd);
4665
4666 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4667 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4668 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4669 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4670 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4671 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4672 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4673 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4674 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4675 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4676 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4677
4678 error = ENOIOCTL;
4679 break;
4680 }
4681
4682 mtx_unlock(&sc->ciss_mtx);
4683 return(error);
4684}
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