2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 Michael Smith
5 * Copyright (c) 2004 Paul Saab
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * Common Interface for SCSI-3 Support driver.
35 * CISS claims to provide a common interface between a generic SCSI
36 * transport and an intelligent host adapter.
38 * This driver supports CISS as defined in the document "CISS Command
39 * Interface for SCSI-3 Support Open Specification", Version 1.04,
40 * Valence Number 1, dated 20001127, produced by Compaq Computer
41 * Corporation. This document appears to be a hastily and somewhat
42 * arbitrarlily cut-down version of a larger (and probably even more
43 * chaotic and inconsistent) Compaq internal document. Various
44 * details were also gleaned from Compaq's "cciss" driver for Linux.
46 * We provide a shim layer between the CISS interface and CAM,
47 * offloading most of the queueing and being-a-disk chores onto CAM.
48 * Entry to the driver is via the PCI bus attachment (ciss_probe,
49 * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
50 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
51 * citizens and we have to fake up some responses to get reasonable
52 * behaviour out of them. In addition, the CISS command set is by no
53 * means adequate to support the functionality of a RAID controller,
54 * and thus the supported Compaq adapters utilise portions of the
55 * control protocol from earlier Compaq adapter families.
57 * Note that we only support the "simple" transport layer over PCI.
58 * This interface (ab)uses the I2O register set (specifically the post
59 * queues) to exchange commands with the adapter. Other interfaces
60 * are available, but we aren't supposed to know about them, and it is
61 * dubious whether they would provide major performance improvements
62 * except under extreme load.
64 * Currently the only supported CISS adapters are the Compaq Smart
65 * Array 5* series (5300, 5i, 532). Even with only three adapters,
66 * Compaq still manage to have interface variations.
69 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
70 * well as Paul Saab at Yahoo! for their assistance in making this
73 * More thanks must go to John Cagle at HP for the countless hours
74 * spent making this driver "work" with the MSA* series storage
75 * enclosures. Without his help (and nagging), this driver could not
76 * be used with these enclosures.
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/malloc.h>
82 #include <sys/kernel.h>
86 #include <sys/kthread.h>
87 #include <sys/queue.h>
88 #include <sys/sysctl.h>
91 #include <cam/cam_ccb.h>
92 #include <cam/cam_periph.h>
93 #include <cam/cam_sim.h>
94 #include <cam/cam_xpt_sim.h>
95 #include <cam/scsi/scsi_all.h>
96 #include <cam/scsi/scsi_message.h>
98 #include <machine/bus.h>
99 #include <machine/endian.h>
100 #include <machine/resource.h>
101 #include <sys/rman.h>
103 #include <dev/pci/pcireg.h>
104 #include <dev/pci/pcivar.h>
106 #include <dev/ciss/cissreg.h>
107 #include <dev/ciss/cissio.h>
108 #include <dev/ciss/cissvar.h>
110 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
111 "ciss internal data buffers");
114 static int ciss_lookup(device_t dev);
115 static int ciss_probe(device_t dev);
116 static int ciss_attach(device_t dev);
117 static int ciss_detach(device_t dev);
118 static int ciss_shutdown(device_t dev);
120 /* (de)initialisation functions, control wrappers */
121 static int ciss_init_pci(struct ciss_softc *sc);
122 static int ciss_setup_msix(struct ciss_softc *sc);
123 static int ciss_init_perf(struct ciss_softc *sc);
124 static int ciss_wait_adapter(struct ciss_softc *sc);
125 static int ciss_flush_adapter(struct ciss_softc *sc);
126 static int ciss_init_requests(struct ciss_softc *sc);
127 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
128 int nseg, int error);
129 static int ciss_identify_adapter(struct ciss_softc *sc);
130 static int ciss_init_logical(struct ciss_softc *sc);
131 static int ciss_init_physical(struct ciss_softc *sc);
132 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
133 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
134 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
135 static int ciss_update_config(struct ciss_softc *sc);
136 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
137 static void ciss_init_sysctl(struct ciss_softc *sc);
138 static void ciss_soft_reset(struct ciss_softc *sc);
139 static void ciss_free(struct ciss_softc *sc);
140 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
141 static void ciss_kill_notify_thread(struct ciss_softc *sc);
143 /* request submission/completion */
144 static int ciss_start(struct ciss_request *cr);
145 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
146 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
147 static void ciss_intr(void *arg);
148 static void ciss_perf_intr(void *arg);
149 static void ciss_perf_msi_intr(void *arg);
150 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
151 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
152 static int ciss_synch_request(struct ciss_request *cr, int timeout);
153 static int ciss_poll_request(struct ciss_request *cr, int timeout);
154 static int ciss_wait_request(struct ciss_request *cr, int timeout);
156 static int ciss_abort_request(struct ciss_request *cr);
159 /* request queueing */
160 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
161 static void ciss_preen_command(struct ciss_request *cr);
162 static void ciss_release_request(struct ciss_request *cr);
164 /* request helpers */
165 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
166 int opcode, void **bufp, size_t bufsize);
167 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
170 static int ciss_map_request(struct ciss_request *cr);
171 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
172 int nseg, int error);
173 static void ciss_unmap_request(struct ciss_request *cr);
176 static int ciss_cam_init(struct ciss_softc *sc);
177 static void ciss_cam_rescan_target(struct ciss_softc *sc,
178 int bus, int target);
179 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
180 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
181 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
182 static void ciss_cam_poll(struct cam_sim *sim);
183 static void ciss_cam_complete(struct ciss_request *cr);
184 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
185 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
187 /* periodic status monitoring */
188 static void ciss_periodic(void *arg);
189 static void ciss_nop_complete(struct ciss_request *cr);
190 static void ciss_disable_adapter(struct ciss_softc *sc);
191 static void ciss_notify_event(struct ciss_softc *sc);
192 static void ciss_notify_complete(struct ciss_request *cr);
193 static int ciss_notify_abort(struct ciss_softc *sc);
194 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
195 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
196 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
197 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
199 /* debugging output */
200 static void ciss_print_request(struct ciss_request *cr);
201 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
202 static const char *ciss_name_ldrive_status(int status);
203 static int ciss_decode_ldrive_status(int status);
204 static const char *ciss_name_ldrive_org(int org);
205 static const char *ciss_name_command_status(int status);
210 static 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),
219 static driver_t ciss_pci_driver = {
222 sizeof(struct ciss_softc)
225 static devclass_t ciss_devclass;
226 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
227 MODULE_DEPEND(ciss, cam, 1, 1, 1);
228 MODULE_DEPEND(ciss, pci, 1, 1, 1);
231 * Control device interface.
233 static d_open_t ciss_open;
234 static d_close_t ciss_close;
235 static d_ioctl_t ciss_ioctl;
237 static struct cdevsw ciss_cdevsw = {
238 .d_version = D_VERSION,
241 .d_close = ciss_close,
242 .d_ioctl = ciss_ioctl,
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.
250 static unsigned int ciss_expose_hidden_physical = 0;
251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
253 static unsigned int ciss_nop_message_heartbeat = 0;
254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
257 * This tunable can force a particular transport to be used:
260 * 2 : force performant
262 static int ciss_force_transport = 0;
263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
266 * This tunable can force a particular interrupt delivery method to be used:
271 static int ciss_force_interrupt = 0;
272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
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.
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)
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 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
342 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
343 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
344 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
345 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
346 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
347 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
348 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
349 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
350 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
351 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
352 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
353 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
354 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
355 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
356 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
357 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
358 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
359 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
360 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
361 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
362 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
363 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array TBD" },
364 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
365 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
369 /************************************************************************
370 * Find a match for the device in our list of known adapters.
373 ciss_lookup(device_t dev)
377 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
378 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
379 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
385 /************************************************************************
386 * Match a known CISS adapter.
389 ciss_probe(device_t dev)
393 i = ciss_lookup(dev);
395 device_set_desc(dev, ciss_vendor_data[i].desc);
396 return(BUS_PROBE_DEFAULT);
401 /************************************************************************
402 * Attach the driver to this adapter.
405 ciss_attach(device_t dev)
407 struct ciss_softc *sc;
413 /* print structure/union sizes */
414 debug_struct(ciss_command);
415 debug_struct(ciss_header);
416 debug_union(ciss_device_address);
417 debug_struct(ciss_cdb);
418 debug_struct(ciss_report_cdb);
419 debug_struct(ciss_notify_cdb);
420 debug_struct(ciss_notify);
421 debug_struct(ciss_message_cdb);
422 debug_struct(ciss_error_info_pointer);
423 debug_struct(ciss_error_info);
424 debug_struct(ciss_sg_entry);
425 debug_struct(ciss_config_table);
426 debug_struct(ciss_bmic_cdb);
427 debug_struct(ciss_bmic_id_ldrive);
428 debug_struct(ciss_bmic_id_lstatus);
429 debug_struct(ciss_bmic_id_table);
430 debug_struct(ciss_bmic_id_pdrive);
431 debug_struct(ciss_bmic_blink_pdrive);
432 debug_struct(ciss_bmic_flush_cache);
433 debug_const(CISS_MAX_REQUESTS);
434 debug_const(CISS_MAX_LOGICAL);
435 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
436 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
437 debug_const(CISS_COMMAND_ALLOC_SIZE);
438 debug_const(CISS_COMMAND_SG_LENGTH);
440 debug_type(cciss_pci_info_struct);
441 debug_type(cciss_coalint_struct);
442 debug_type(cciss_coalint_struct);
443 debug_type(NodeName_type);
444 debug_type(NodeName_type);
445 debug_type(Heartbeat_type);
446 debug_type(BusTypes_type);
447 debug_type(FirmwareVer_type);
448 debug_type(DriverVer_type);
449 debug_type(IOCTL_Command_struct);
452 sc = device_get_softc(dev);
454 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
455 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
458 * Do PCI-specific init.
460 if ((error = ciss_init_pci(sc)) != 0)
464 * Initialise driver queues.
467 ciss_initq_notify(sc);
470 * Initialize device sysctls.
472 ciss_init_sysctl(sc);
475 * Initialise command/request pool.
477 if ((error = ciss_init_requests(sc)) != 0)
481 * Get adapter information.
483 if ((error = ciss_identify_adapter(sc)) != 0)
487 * Find all the physical devices.
489 if ((error = ciss_init_physical(sc)) != 0)
493 * Build our private table of logical devices.
495 if ((error = ciss_init_logical(sc)) != 0)
499 * Enable interrupts so that the CAM scan can complete.
501 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
504 * Initialise the CAM interface.
506 if ((error = ciss_cam_init(sc)) != 0)
510 * Start the heartbeat routine and event chain.
515 * Create the control device.
517 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
518 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
519 "ciss%d", device_get_unit(sc->ciss_dev));
520 sc->ciss_dev_t->si_drv1 = sc;
523 * The adapter is running; synchronous commands can now sleep
524 * waiting for an interrupt to signal completion.
526 sc->ciss_flags |= CISS_FLAG_RUNNING;
528 ciss_spawn_notify_thread(sc);
533 /* ciss_free() expects the mutex to be held */
534 mtx_lock(&sc->ciss_mtx);
540 /************************************************************************
541 * Detach the driver from this adapter.
544 ciss_detach(device_t dev)
546 struct ciss_softc *sc = device_get_softc(dev);
550 mtx_lock(&sc->ciss_mtx);
551 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
552 mtx_unlock(&sc->ciss_mtx);
556 /* flush adapter cache */
557 ciss_flush_adapter(sc);
559 /* release all resources. The mutex is released and freed here too. */
565 /************************************************************************
566 * Prepare adapter for system shutdown.
569 ciss_shutdown(device_t dev)
571 struct ciss_softc *sc = device_get_softc(dev);
575 mtx_lock(&sc->ciss_mtx);
576 /* flush adapter cache */
577 ciss_flush_adapter(sc);
579 if (sc->ciss_soft_reset)
581 mtx_unlock(&sc->ciss_mtx);
587 ciss_init_sysctl(struct ciss_softc *sc)
590 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
591 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
592 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
595 /************************************************************************
596 * Perform PCI-specific attachment actions.
599 ciss_init_pci(struct ciss_softc *sc)
601 uintptr_t cbase, csize, cofs;
602 uint32_t method, supported_methods;
603 int error, sqmask, i;
609 * Work out adapter type.
611 i = ciss_lookup(sc->ciss_dev);
613 ciss_printf(sc, "unknown adapter type\n");
617 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
618 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
619 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
620 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
623 * XXX Big hammer, masks/unmasks all possible interrupts. This should
624 * work on all hardware variants. Need to add code to handle the
625 * "controller crashed" interrupt bit that this unmasks.
631 * Allocate register window first (we need this to find the config
635 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
636 if ((sc->ciss_regs_resource =
637 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
638 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
639 ciss_printf(sc, "can't allocate register window\n");
642 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
643 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
646 * Find the BAR holding the config structure. If it's not the one
647 * we already mapped for registers, map it too.
649 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
650 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
651 if ((sc->ciss_cfg_resource =
652 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
653 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
654 ciss_printf(sc, "can't allocate config window\n");
657 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
658 csize = rman_get_end(sc->ciss_cfg_resource) -
659 rman_get_start(sc->ciss_cfg_resource) + 1;
661 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
662 csize = rman_get_end(sc->ciss_regs_resource) -
663 rman_get_start(sc->ciss_regs_resource) + 1;
665 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
668 * Use the base/size/offset values we just calculated to
669 * sanity-check the config structure. If it's OK, point to it.
671 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
672 ciss_printf(sc, "config table outside window\n");
675 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
676 debug(1, "config struct at %p", sc->ciss_cfg);
679 * Calculate the number of request structures/commands we are
680 * going to provide for this adapter.
682 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
685 * Validate the config structure. If we supported other transport
686 * methods, we could select amongst them at this point in time.
688 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
689 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
690 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
691 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
696 * Select the mode of operation, prefer Performant.
698 if (!(sc->ciss_cfg->supported_methods &
699 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
700 ciss_printf(sc, "No supported transport layers: 0x%x\n",
701 sc->ciss_cfg->supported_methods);
704 switch (ciss_force_transport) {
706 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
709 supported_methods = CISS_TRANSPORT_METHOD_PERF;
713 * Override the capabilities of the BOARD and specify SIMPLE
716 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
717 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
719 supported_methods = sc->ciss_cfg->supported_methods;
724 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
725 method = CISS_TRANSPORT_METHOD_PERF;
726 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
727 sc->ciss_cfg->transport_offset);
728 if (ciss_init_perf(sc)) {
729 supported_methods &= ~method;
732 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
733 method = CISS_TRANSPORT_METHOD_SIMPLE;
735 ciss_printf(sc, "No supported transport methods: 0x%x\n",
736 sc->ciss_cfg->supported_methods);
741 * Tell it we're using the low 4GB of RAM. Set the default interrupt
742 * coalescing options.
744 sc->ciss_cfg->requested_method = method;
745 sc->ciss_cfg->command_physlimit = 0;
746 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
747 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
750 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
753 if (ciss_update_config(sc)) {
754 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
755 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
758 if ((sc->ciss_cfg->active_method & method) == 0) {
759 supported_methods &= ~method;
760 if (supported_methods == 0) {
761 ciss_printf(sc, "adapter refuses to go into available transports "
762 "mode (0x%x, 0x%x)\n", supported_methods,
763 sc->ciss_cfg->active_method);
770 * Wait for the adapter to come ready.
772 if ((error = ciss_wait_adapter(sc)) != 0)
775 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
776 * interrupts have a rid of 0, this will be overridden if MSIX is used.
778 sc->ciss_irq_rid[0] = 0;
779 if (method == CISS_TRANSPORT_METHOD_PERF) {
780 ciss_printf(sc, "PERFORMANT Transport\n");
781 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
782 intr = ciss_perf_msi_intr;
784 intr = ciss_perf_intr;
786 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
787 * Unfortunately, there is no good way to know if this is a SAS
788 * controller. Hopefully enabling this bit universally will work OK.
789 * It seems to work fine for SA6i controllers.
791 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
794 ciss_printf(sc, "SIMPLE Transport\n");
795 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
796 if (ciss_force_interrupt == 2)
797 /* If this fails, we automatically revert to INTx */
799 sc->ciss_perf = NULL;
801 sc->ciss_interrupt_mask = sqmask;
805 * Turn off interrupts before we go routing anything.
807 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
810 * Allocate and set up our interrupt.
812 if ((sc->ciss_irq_resource =
813 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
814 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
815 ciss_printf(sc, "can't allocate interrupt\n");
819 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
820 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
822 ciss_printf(sc, "can't set up interrupt\n");
827 * Allocate the parent bus DMA tag appropriate for our PCI
830 * Note that "simple" adapters can only address within a 32-bit
833 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
834 1, 0, /* alignment, boundary */
835 BUS_SPACE_MAXADDR, /* lowaddr */
836 BUS_SPACE_MAXADDR, /* highaddr */
837 NULL, NULL, /* filter, filterarg */
838 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
839 BUS_SPACE_UNRESTRICTED, /* nsegments */
840 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
842 NULL, NULL, /* lockfunc, lockarg */
843 &sc->ciss_parent_dmat)) {
844 ciss_printf(sc, "can't allocate parent DMA tag\n");
849 * Create DMA tag for mapping buffers into adapter-addressable
852 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
853 1, 0, /* alignment, boundary */
854 BUS_SPACE_MAXADDR, /* lowaddr */
855 BUS_SPACE_MAXADDR, /* highaddr */
856 NULL, NULL, /* filter, filterarg */
857 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
858 CISS_MAX_SG_ELEMENTS, /* nsegments */
859 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
860 BUS_DMA_ALLOCNOW, /* flags */
861 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
862 &sc->ciss_buffer_dmat)) {
863 ciss_printf(sc, "can't allocate buffer DMA tag\n");
869 /************************************************************************
870 * Setup MSI/MSIX operation (Performant only)
871 * Four interrupts are available, but we only use 1 right now. If MSI-X
872 * isn't avaialble, try using MSI instead.
875 ciss_setup_msix(struct ciss_softc *sc)
879 /* Weed out devices that don't actually support MSI */
880 i = ciss_lookup(sc->ciss_dev);
881 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
885 * Only need to use the minimum number of MSI vectors, as the driver
886 * doesn't support directed MSIX interrupts.
888 val = pci_msix_count(sc->ciss_dev);
889 if (val < CISS_MSI_COUNT) {
890 val = pci_msi_count(sc->ciss_dev);
891 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
892 if (val < CISS_MSI_COUNT)
895 val = MIN(val, CISS_MSI_COUNT);
896 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
897 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
903 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
904 (val != 1) ? "s" : "");
906 for (i = 0; i < val; i++)
907 sc->ciss_irq_rid[i] = i + 1;
913 /************************************************************************
914 * Setup the Performant structures.
917 ciss_init_perf(struct ciss_softc *sc)
919 struct ciss_perf_config *pc = sc->ciss_perf;
923 * Create the DMA tag for the reply queue.
925 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
926 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
927 1, 0, /* alignment, boundary */
928 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
929 BUS_SPACE_MAXADDR, /* highaddr */
930 NULL, NULL, /* filter, filterarg */
931 reply_size, 1, /* maxsize, nsegments */
932 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
934 NULL, NULL, /* lockfunc, lockarg */
935 &sc->ciss_reply_dmat)) {
936 ciss_printf(sc, "can't allocate reply DMA tag\n");
940 * Allocate memory and make it available for DMA.
942 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
943 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
944 ciss_printf(sc, "can't allocate reply memory\n");
947 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
948 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
949 bzero(sc->ciss_reply, reply_size);
951 sc->ciss_cycle = 0x1;
955 * Preload the fetch table with common command sizes. This allows the
956 * hardware to not waste bus cycles for typical i/o commands, but also not
957 * tax the driver to be too exact in choosing sizes. The table is optimized
958 * for page-aligned i/o's, but since most i/o comes from the various pagers,
959 * it's a reasonable assumption to make.
961 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
962 pc->fetch_count[CISS_SG_FETCH_1] =
963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
964 pc->fetch_count[CISS_SG_FETCH_2] =
965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
966 pc->fetch_count[CISS_SG_FETCH_4] =
967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
968 pc->fetch_count[CISS_SG_FETCH_8] =
969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
970 pc->fetch_count[CISS_SG_FETCH_16] =
971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
972 pc->fetch_count[CISS_SG_FETCH_32] =
973 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
974 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
976 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
977 pc->rq_count = 1; /* XXX Hardcode for a single queue */
980 pc->rq[0].rq_addr_hi = 0x0;
981 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
986 /************************************************************************
987 * Wait for the adapter to come ready.
990 ciss_wait_adapter(struct ciss_softc *sc)
997 * Wait for the adapter to come ready.
999 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
1000 ciss_printf(sc, "waiting for adapter to come ready...\n");
1001 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1002 DELAY(1000000); /* one second */
1004 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1012 /************************************************************************
1013 * Flush the adapter cache.
1016 ciss_flush_adapter(struct ciss_softc *sc)
1018 struct ciss_request *cr;
1019 struct ciss_bmic_flush_cache *cbfc;
1020 int error, command_status;
1028 * Build a BMIC request to flush the cache. We don't disable
1029 * it, as we may be going to do more I/O (eg. we are emulating
1030 * the Synchronise Cache command).
1032 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1036 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1037 (void **)&cbfc, sizeof(*cbfc))) != 0)
1041 * Submit the request and wait for it to complete.
1043 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1044 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1051 ciss_report_request(cr, &command_status, NULL);
1052 switch(command_status) {
1053 case CISS_CMD_STATUS_SUCCESS:
1056 ciss_printf(sc, "error flushing cache (%s)\n",
1057 ciss_name_command_status(command_status));
1064 free(cbfc, CISS_MALLOC_CLASS);
1066 ciss_release_request(cr);
1071 ciss_soft_reset(struct ciss_softc *sc)
1073 struct ciss_request *cr = NULL;
1074 struct ciss_command *cc;
1077 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1078 /* only reset proxy controllers */
1079 if (sc->ciss_controllers[i].physical.bus == 0)
1082 if ((error = ciss_get_request(sc, &cr)) != 0)
1085 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1090 cc->header.address = sc->ciss_controllers[i];
1092 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1095 ciss_release_request(cr);
1099 ciss_printf(sc, "error resetting controller (%d)\n", error);
1102 ciss_release_request(cr);
1105 /************************************************************************
1106 * Allocate memory for the adapter command structures, initialise
1107 * the request structures.
1109 * Note that the entire set of commands are allocated in a single
1113 ciss_init_requests(struct ciss_softc *sc)
1115 struct ciss_request *cr;
1121 ciss_printf(sc, "using %d of %d available commands\n",
1122 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1125 * Create the DMA tag for commands.
1127 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1128 32, 0, /* alignment, boundary */
1129 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1130 BUS_SPACE_MAXADDR, /* highaddr */
1131 NULL, NULL, /* filter, filterarg */
1132 CISS_COMMAND_ALLOC_SIZE *
1133 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1134 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1136 NULL, NULL, /* lockfunc, lockarg */
1137 &sc->ciss_command_dmat)) {
1138 ciss_printf(sc, "can't allocate command DMA tag\n");
1142 * Allocate memory and make it available for DMA.
1144 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1145 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1146 ciss_printf(sc, "can't allocate command memory\n");
1149 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1150 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1151 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1152 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1155 * Set up the request and command structures, push requests onto
1158 for (i = 1; i < sc->ciss_max_requests; i++) {
1159 cr = &sc->ciss_request[i];
1162 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1163 CISS_COMMAND_ALLOC_SIZE * i);
1164 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1165 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1166 ciss_enqueue_free(cr);
1172 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1177 *addr = segs[0].ds_addr;
1180 /************************************************************************
1181 * Identify the adapter, print some information about it.
1184 ciss_identify_adapter(struct ciss_softc *sc)
1186 struct ciss_request *cr;
1187 int error, command_status;
1194 * Get a request, allocate storage for the adapter data.
1196 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1197 (void **)&sc->ciss_id,
1198 sizeof(*sc->ciss_id))) != 0)
1202 * Submit the request and wait for it to complete.
1204 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1205 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1212 ciss_report_request(cr, &command_status, NULL);
1213 switch(command_status) {
1214 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1216 case CISS_CMD_STATUS_DATA_UNDERRUN:
1217 case CISS_CMD_STATUS_DATA_OVERRUN:
1218 ciss_printf(sc, "data over/underrun reading adapter information\n");
1220 ciss_printf(sc, "error reading adapter information (%s)\n",
1221 ciss_name_command_status(command_status));
1226 /* sanity-check reply */
1227 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1228 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1234 /* XXX later revisions may not need this */
1235 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1238 /* XXX only really required for old 5300 adapters? */
1239 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1242 * Earlier controller specs do not contain these config
1243 * entries, so assume that a 0 means its old and assign
1244 * these values to the defaults that were established
1245 * when this driver was developed for them
1247 if (sc->ciss_cfg->max_logical_supported == 0)
1248 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1249 if (sc->ciss_cfg->max_physical_supported == 0)
1250 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1251 /* print information */
1253 ciss_printf(sc, " %d logical drive%s configured\n",
1254 sc->ciss_id->configured_logical_drives,
1255 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1256 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1257 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1259 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1260 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1261 ciss_printf(sc, " supported I/O methods 0x%b\n",
1262 sc->ciss_cfg->supported_methods,
1263 "\20\1READY\2simple\3performant\4MEMQ\n");
1264 ciss_printf(sc, " active I/O method 0x%b\n",
1265 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1266 ciss_printf(sc, " 4G page base 0x%08x\n",
1267 sc->ciss_cfg->command_physlimit);
1268 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1269 sc->ciss_cfg->interrupt_coalesce_delay);
1270 ciss_printf(sc, " interrupt coalesce count %d\n",
1271 sc->ciss_cfg->interrupt_coalesce_count);
1272 ciss_printf(sc, " max outstanding commands %d\n",
1273 sc->ciss_cfg->max_outstanding_commands);
1274 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1275 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1276 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1277 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1278 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1279 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1280 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1281 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1282 "Available" : "Unavailable");
1283 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1284 "Enabled" : "Disabled");
1289 if (sc->ciss_id != NULL) {
1290 free(sc->ciss_id, CISS_MALLOC_CLASS);
1295 ciss_release_request(cr);
1299 /************************************************************************
1300 * Helper routine for generating a list of logical and physical luns.
1302 static struct ciss_lun_report *
1303 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1305 struct ciss_request *cr;
1306 struct ciss_command *cc;
1307 struct ciss_report_cdb *crc;
1308 struct ciss_lun_report *cll;
1319 * Get a request, allocate storage for the address list.
1321 if ((error = ciss_get_request(sc, &cr)) != 0)
1323 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1324 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1325 ciss_printf(sc, "can't allocate memory for lun report\n");
1331 * Build the Report Logical/Physical LUNs command.
1335 cr->cr_length = report_size;
1336 cr->cr_flags = CISS_REQ_DATAIN;
1338 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1339 cc->header.address.physical.bus = 0;
1340 cc->header.address.physical.target = 0;
1341 cc->cdb.cdb_length = sizeof(*crc);
1342 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1343 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1344 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1345 cc->cdb.timeout = 30; /* XXX better suggestions? */
1347 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1348 bzero(crc, sizeof(*crc));
1349 crc->opcode = opcode;
1350 crc->length = htonl(report_size); /* big-endian field */
1351 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1354 * Submit the request and wait for it to complete. (timeout
1355 * here should be much greater than above)
1357 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1358 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1363 * Check response. Note that data over/underrun is OK.
1365 ciss_report_request(cr, &command_status, NULL);
1366 switch(command_status) {
1367 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1368 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1370 case CISS_CMD_STATUS_DATA_OVERRUN:
1371 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1372 sc->ciss_cfg->max_logical_supported);
1375 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1376 ciss_name_command_status(command_status));
1380 ciss_release_request(cr);
1385 ciss_release_request(cr);
1386 if (error && cll != NULL) {
1387 free(cll, CISS_MALLOC_CLASS);
1393 /************************************************************************
1394 * Find logical drives on the adapter.
1397 ciss_init_logical(struct ciss_softc *sc)
1399 struct ciss_lun_report *cll;
1400 int error = 0, i, j;
1405 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1406 sc->ciss_cfg->max_logical_supported);
1412 /* sanity-check reply */
1413 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1414 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1415 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1416 ndrives, sc->ciss_cfg->max_logical_supported);
1422 * Save logical drive information.
1425 ciss_printf(sc, "%d logical drive%s\n",
1426 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1430 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1431 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1432 if (sc->ciss_logical == NULL) {
1437 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1438 sc->ciss_logical[i] =
1439 malloc(sc->ciss_cfg->max_logical_supported *
1440 sizeof(struct ciss_ldrive),
1441 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1442 if (sc->ciss_logical[i] == NULL) {
1447 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1448 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1452 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1454 struct ciss_ldrive *ld;
1457 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1458 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1459 ld = &sc->ciss_logical[bus][target];
1461 ld->cl_address = cll->lun[i];
1462 ld->cl_controller = &sc->ciss_controllers[bus];
1463 if (ciss_identify_logical(sc, ld) != 0)
1466 * If the drive has had media exchanged, we should bring it online.
1468 if (ld->cl_lstatus->media_exchanged)
1469 ciss_accept_media(sc, ld);
1476 free(cll, CISS_MALLOC_CLASS);
1481 ciss_init_physical(struct ciss_softc *sc)
1483 struct ciss_lun_report *cll;
1493 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1494 sc->ciss_cfg->max_physical_supported);
1500 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1503 ciss_printf(sc, "%d physical device%s\n",
1504 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1508 * Figure out the bus mapping.
1509 * Logical buses include both the local logical bus for local arrays and
1510 * proxy buses for remote arrays. Physical buses are numbered by the
1511 * controller and represent physical buses that hold physical devices.
1512 * We shift these bus numbers so that everything fits into a single flat
1513 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1514 * numbers, and the physical bus numbers are shifted to be above that.
1515 * This results in the various driver arrays being indexed as follows:
1517 * ciss_controllers[] - indexed by logical bus
1518 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1519 * being shifted by 32.
1520 * ciss_logical[][] - indexed by logical bus
1521 * ciss_physical[][] - indexed by physical bus
1523 * XXX This is getting more and more hackish. CISS really doesn't play
1524 * well with a standard SCSI model; devices are addressed via magic
1525 * cookies, not via b/t/l addresses. Since there is no way to store
1526 * the cookie in the CAM device object, we have to keep these lookup
1527 * tables handy so that the devices can be found quickly at the cost
1528 * of wasting memory and having a convoluted lookup scheme. This
1529 * driver should probably be converted to block interface.
1532 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1533 * controller. A proxy controller is another physical controller
1534 * behind the primary PCI controller. We need to know about this
1535 * so that BMIC commands can be properly targeted. There can be
1536 * proxy controllers attached to a single PCI controller, so
1537 * find the highest numbered one so the array can be properly
1540 sc->ciss_max_logical_bus = 1;
1541 for (i = 0; i < nphys; i++) {
1542 if (cll->lun[i].physical.extra_address == 0) {
1543 bus = cll->lun[i].physical.bus;
1544 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1546 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1547 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1551 sc->ciss_controllers =
1552 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1553 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1555 if (sc->ciss_controllers == NULL) {
1556 ciss_printf(sc, "Could not allocate memory for controller map\n");
1561 /* setup a map of controller addresses */
1562 for (i = 0; i < nphys; i++) {
1563 if (cll->lun[i].physical.extra_address == 0) {
1564 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1569 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1570 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1571 if (sc->ciss_physical == NULL) {
1572 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1577 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1578 sc->ciss_physical[i] =
1579 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1580 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1581 if (sc->ciss_physical[i] == NULL) {
1582 ciss_printf(sc, "Could not allocate memory for target map\n");
1588 ciss_filter_physical(sc, cll);
1592 free(cll, CISS_MALLOC_CLASS);
1598 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1604 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1605 for (i = 0; i < nphys; i++) {
1606 if (cll->lun[i].physical.extra_address == 0)
1610 * Filter out devices that we don't want. Level 3 LUNs could
1611 * probably be supported, but the docs don't give enough of a
1614 * The mode field of the physical address is likely set to have
1615 * hard disks masked out. Honor it unless the user has overridden
1616 * us with the tunable. We also munge the inquiry data for these
1617 * disks so that they only show up as passthrough devices. Keeping
1618 * them visible in this fashion is useful for doing things like
1619 * flashing firmware.
1621 ea = cll->lun[i].physical.extra_address;
1622 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1623 (CISS_EXTRA_MODE2(ea) == 0x3))
1625 if ((ciss_expose_hidden_physical == 0) &&
1626 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1630 * Note: CISS firmware numbers physical busses starting at '1', not
1631 * '0'. This numbering is internal to the firmware and is only
1632 * used as a hint here.
1634 bus = CISS_EXTRA_BUS2(ea) - 1;
1635 target = CISS_EXTRA_TARGET2(ea);
1636 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1637 sc->ciss_physical[bus][target].cp_online = 1;
1644 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1646 struct ciss_request *cr;
1647 struct ciss_command *cc;
1648 struct scsi_inquiry *inq;
1654 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1656 if ((error = ciss_get_request(sc, &cr)) != 0)
1660 cr->cr_data = &ld->cl_geometry;
1661 cr->cr_length = sizeof(ld->cl_geometry);
1662 cr->cr_flags = CISS_REQ_DATAIN;
1664 cc->header.address = ld->cl_address;
1665 cc->cdb.cdb_length = 6;
1666 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1667 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1668 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1669 cc->cdb.timeout = 30;
1671 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1672 inq->opcode = INQUIRY;
1673 inq->byte2 = SI_EVPD;
1674 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1675 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1677 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1678 ciss_printf(sc, "error getting geometry (%d)\n", error);
1682 ciss_report_request(cr, &command_status, NULL);
1683 switch(command_status) {
1684 case CISS_CMD_STATUS_SUCCESS:
1685 case CISS_CMD_STATUS_DATA_UNDERRUN:
1687 case CISS_CMD_STATUS_DATA_OVERRUN:
1688 ciss_printf(sc, "WARNING: Data overrun\n");
1691 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1692 ciss_name_command_status(command_status));
1698 ciss_release_request(cr);
1701 /************************************************************************
1702 * Identify a logical drive, initialise state related to it.
1705 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1707 struct ciss_request *cr;
1708 struct ciss_command *cc;
1709 struct ciss_bmic_cdb *cbc;
1710 int error, command_status;
1717 * Build a BMIC request to fetch the drive ID.
1719 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1720 (void **)&ld->cl_ldrive,
1721 sizeof(*ld->cl_ldrive))) != 0)
1724 cc->header.address = *ld->cl_controller; /* target controller */
1725 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1726 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1729 * Submit the request and wait for it to complete.
1731 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1732 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1739 ciss_report_request(cr, &command_status, NULL);
1740 switch(command_status) {
1741 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1743 case CISS_CMD_STATUS_DATA_UNDERRUN:
1744 case CISS_CMD_STATUS_DATA_OVERRUN:
1745 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1747 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1748 ciss_name_command_status(command_status));
1752 ciss_release_request(cr);
1756 * Build a CISS BMIC command to get the logical drive status.
1758 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1762 * Get the logical drive geometry.
1764 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1768 * Print the drive's basic characteristics.
1771 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1772 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1773 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1774 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1775 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1776 ld->cl_ldrive->block_size));
1778 ciss_print_ldrive(sc, ld);
1782 /* make the drive not-exist */
1783 ld->cl_status = CISS_LD_NONEXISTENT;
1784 if (ld->cl_ldrive != NULL) {
1785 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1786 ld->cl_ldrive = NULL;
1788 if (ld->cl_lstatus != NULL) {
1789 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1790 ld->cl_lstatus = NULL;
1794 ciss_release_request(cr);
1799 /************************************************************************
1800 * Get status for a logical drive.
1802 * XXX should we also do this in response to Test Unit Ready?
1805 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1807 struct ciss_request *cr;
1808 struct ciss_command *cc;
1809 struct ciss_bmic_cdb *cbc;
1810 int error, command_status;
1813 * Build a CISS BMIC command to get the logical drive status.
1815 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1816 (void **)&ld->cl_lstatus,
1817 sizeof(*ld->cl_lstatus))) != 0)
1820 cc->header.address = *ld->cl_controller; /* target controller */
1821 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1822 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1825 * Submit the request and wait for it to complete.
1827 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1828 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1835 ciss_report_request(cr, &command_status, NULL);
1836 switch(command_status) {
1837 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1839 case CISS_CMD_STATUS_DATA_UNDERRUN:
1840 case CISS_CMD_STATUS_DATA_OVERRUN:
1841 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1843 ciss_printf(sc, "error reading logical drive status (%s)\n",
1844 ciss_name_command_status(command_status));
1850 * Set the drive's summary status based on the returned status.
1852 * XXX testing shows that a failed JBOD drive comes back at next
1853 * boot in "queued for expansion" mode. WTF?
1855 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1859 ciss_release_request(cr);
1863 /************************************************************************
1864 * Notify the adapter of a config update.
1867 ciss_update_config(struct ciss_softc *sc)
1873 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1874 for (i = 0; i < 1000; i++) {
1875 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1876 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1884 /************************************************************************
1885 * Accept new media into a logical drive.
1887 * XXX The drive has previously been offline; it would be good if we
1888 * could make sure it's not open right now.
1891 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1893 struct ciss_request *cr;
1894 struct ciss_command *cc;
1895 struct ciss_bmic_cdb *cbc;
1897 int error = 0, ldrive;
1899 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1901 debug(0, "bringing logical drive %d back online", ldrive);
1904 * Build a CISS BMIC command to bring the drive back online.
1906 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1910 cc->header.address = *ld->cl_controller; /* target controller */
1911 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1912 cbc->log_drive = ldrive;
1915 * Submit the request and wait for it to complete.
1917 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1918 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1925 ciss_report_request(cr, &command_status, NULL);
1926 switch(command_status) {
1927 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1928 /* we should get a logical drive status changed event here */
1931 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1932 ciss_name_command_status(command_status));
1938 ciss_release_request(cr);
1942 /************************************************************************
1943 * Release adapter resources.
1946 ciss_free(struct ciss_softc *sc)
1948 struct ciss_request *cr;
1953 /* we're going away */
1954 sc->ciss_flags |= CISS_FLAG_ABORTING;
1956 /* terminate the periodic heartbeat routine */
1957 callout_stop(&sc->ciss_periodic);
1959 /* cancel the Event Notify chain */
1960 ciss_notify_abort(sc);
1962 ciss_kill_notify_thread(sc);
1964 /* disconnect from CAM */
1965 if (sc->ciss_cam_sim) {
1966 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1967 if (sc->ciss_cam_sim[i]) {
1968 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1969 cam_sim_free(sc->ciss_cam_sim[i], 0);
1972 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1973 CISS_PHYSICAL_BASE; i++) {
1974 if (sc->ciss_cam_sim[i]) {
1975 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1976 cam_sim_free(sc->ciss_cam_sim[i], 0);
1979 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1981 if (sc->ciss_cam_devq)
1982 cam_simq_free(sc->ciss_cam_devq);
1984 /* remove the control device */
1985 mtx_unlock(&sc->ciss_mtx);
1986 if (sc->ciss_dev_t != NULL)
1987 destroy_dev(sc->ciss_dev_t);
1989 /* Final cleanup of the callout. */
1990 callout_drain(&sc->ciss_periodic);
1991 mtx_destroy(&sc->ciss_mtx);
1993 /* free the controller data */
1994 if (sc->ciss_id != NULL)
1995 free(sc->ciss_id, CISS_MALLOC_CLASS);
1997 /* release I/O resources */
1998 if (sc->ciss_regs_resource != NULL)
1999 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2000 sc->ciss_regs_rid, sc->ciss_regs_resource);
2001 if (sc->ciss_cfg_resource != NULL)
2002 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2003 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2004 if (sc->ciss_intr != NULL)
2005 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2006 if (sc->ciss_irq_resource != NULL)
2007 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2008 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2010 pci_release_msi(sc->ciss_dev);
2012 while ((cr = ciss_dequeue_free(sc)) != NULL)
2013 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2014 if (sc->ciss_buffer_dmat)
2015 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2017 /* destroy command memory and DMA tag */
2018 if (sc->ciss_command != NULL) {
2019 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2020 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2022 if (sc->ciss_command_dmat)
2023 bus_dma_tag_destroy(sc->ciss_command_dmat);
2025 if (sc->ciss_reply) {
2026 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2027 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2029 if (sc->ciss_reply_dmat)
2030 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2032 /* destroy DMA tags */
2033 if (sc->ciss_parent_dmat)
2034 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2035 if (sc->ciss_logical) {
2036 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2037 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2038 if (sc->ciss_logical[i][j].cl_ldrive)
2039 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2040 if (sc->ciss_logical[i][j].cl_lstatus)
2041 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2043 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2045 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2048 if (sc->ciss_physical) {
2049 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2050 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2051 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2054 if (sc->ciss_controllers)
2055 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2059 /************************************************************************
2060 * Give a command to the adapter.
2062 * Note that this uses the simple transport layer directly. If we
2063 * want to add support for other layers, we'll need a switch of some
2066 * Note that the simple transport layer has no way of refusing a
2067 * command; we only have as many request structures as the adapter
2068 * supports commands, so we don't have to check (this presumes that
2069 * the adapter can handle commands as fast as we throw them at it).
2072 ciss_start(struct ciss_request *cr)
2074 struct ciss_command *cc; /* XXX debugging only */
2078 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2081 * Map the request's data.
2083 if ((error = ciss_map_request(cr)))
2087 ciss_print_request(cr);
2093 /************************************************************************
2094 * Fetch completed request(s) from the adapter, queue them for
2095 * completion handling.
2097 * Note that this uses the simple transport layer directly. If we
2098 * want to add support for other layers, we'll need a switch of some
2101 * Note that the simple transport mechanism does not require any
2102 * reentrancy protection; the OPQ read is atomic. If there is a
2103 * chance of a race with something else that might move the request
2104 * off the busy list, then we will have to lock against that
2105 * (eg. timeouts, etc.)
2108 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2110 struct ciss_request *cr;
2111 struct ciss_command *cc;
2112 u_int32_t tag, index;
2117 * Loop quickly taking requests from the adapter and moving them
2118 * to the completed queue.
2122 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2123 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2126 debug(2, "completed command %d%s", index,
2127 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2128 if (index >= sc->ciss_max_requests) {
2129 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2132 cr = &(sc->ciss_request[index]);
2134 cc->header.host_tag = tag; /* not updated by adapter */
2135 ciss_enqueue_complete(cr, qh);
2141 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2143 struct ciss_request *cr;
2144 struct ciss_command *cc;
2145 u_int32_t tag, index;
2150 * Loop quickly taking requests from the adapter and moving them
2151 * to the completed queue.
2154 tag = sc->ciss_reply[sc->ciss_rqidx];
2155 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2158 debug(2, "completed command %d%s\n", index,
2159 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2160 if (index < sc->ciss_max_requests) {
2161 cr = &(sc->ciss_request[index]);
2163 cc->header.host_tag = tag; /* not updated by adapter */
2164 ciss_enqueue_complete(cr, qh);
2166 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2168 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2170 sc->ciss_cycle ^= 1;
2176 /************************************************************************
2177 * Take an interrupt from the adapter.
2180 ciss_intr(void *arg)
2183 struct ciss_softc *sc = (struct ciss_softc *)arg;
2186 * The only interrupt we recognise indicates that there are
2187 * entries in the outbound post queue.
2191 mtx_lock(&sc->ciss_mtx);
2192 ciss_complete(sc, &qh);
2193 mtx_unlock(&sc->ciss_mtx);
2197 ciss_perf_intr(void *arg)
2199 struct ciss_softc *sc = (struct ciss_softc *)arg;
2201 /* Clear the interrupt and flush the bridges. Docs say that the flush
2202 * needs to be done twice, which doesn't seem right.
2204 CISS_TL_PERF_CLEAR_INT(sc);
2205 CISS_TL_PERF_FLUSH_INT(sc);
2207 ciss_perf_msi_intr(sc);
2211 ciss_perf_msi_intr(void *arg)
2214 struct ciss_softc *sc = (struct ciss_softc *)arg;
2217 ciss_perf_done(sc, &qh);
2218 mtx_lock(&sc->ciss_mtx);
2219 ciss_complete(sc, &qh);
2220 mtx_unlock(&sc->ciss_mtx);
2224 /************************************************************************
2225 * Process completed requests.
2227 * Requests can be completed in three fashions:
2229 * - by invoking a callback function (cr_complete is non-null)
2230 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2231 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2234 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2236 struct ciss_request *cr;
2241 * Loop taking requests off the completed queue and performing
2242 * completion processing on them.
2245 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2247 ciss_unmap_request(cr);
2249 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2250 ciss_printf(sc, "WARNING: completing non-busy request\n");
2251 cr->cr_flags &= ~CISS_REQ_BUSY;
2254 * If the request has a callback, invoke it.
2256 if (cr->cr_complete != NULL) {
2257 cr->cr_complete(cr);
2262 * If someone is sleeping on this request, wake them up.
2264 if (cr->cr_flags & CISS_REQ_SLEEP) {
2265 cr->cr_flags &= ~CISS_REQ_SLEEP;
2271 * If someone is polling this request for completion, signal.
2273 if (cr->cr_flags & CISS_REQ_POLL) {
2274 cr->cr_flags &= ~CISS_REQ_POLL;
2279 * Give up and throw the request back on the free queue. This
2280 * should never happen; resources will probably be lost.
2282 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2283 ciss_enqueue_free(cr);
2287 /************************************************************************
2288 * Report on the completion status of a request, and pass back SCSI
2289 * and command status values.
2292 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2294 struct ciss_command *cc;
2295 struct ciss_error_info *ce;
2300 ce = (struct ciss_error_info *)&(cc->sg[0]);
2303 * We don't consider data under/overrun an error for the Report
2304 * Logical/Physical LUNs commands.
2306 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2307 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2308 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2309 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2310 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2311 (cc->cdb.cdb[0] == INQUIRY))) {
2312 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2313 debug(2, "ignoring irrelevant under/overrun error");
2317 * Check the command's error bit, if clear, there's no status and
2320 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2321 if (scsi_status != NULL)
2322 *scsi_status = SCSI_STATUS_OK;
2323 if (command_status != NULL)
2324 *command_status = CISS_CMD_STATUS_SUCCESS;
2327 if (command_status != NULL)
2328 *command_status = ce->command_status;
2329 if (scsi_status != NULL) {
2330 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2331 *scsi_status = ce->scsi_status;
2337 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2338 ce->command_status, ciss_name_command_status(ce->command_status),
2340 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2341 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2342 ce->additional_error_info.invalid_command.offense_size,
2343 ce->additional_error_info.invalid_command.offense_offset,
2344 ce->additional_error_info.invalid_command.offense_value,
2349 ciss_print_request(cr);
2354 /************************************************************************
2355 * Issue a request and don't return until it's completed.
2357 * Depending on adapter status, we may poll or sleep waiting for
2361 ciss_synch_request(struct ciss_request *cr, int timeout)
2363 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2364 return(ciss_wait_request(cr, timeout));
2366 return(ciss_poll_request(cr, timeout));
2370 /************************************************************************
2371 * Issue a request and poll for completion.
2373 * Timeout in milliseconds.
2376 ciss_poll_request(struct ciss_request *cr, int timeout)
2379 struct ciss_softc *sc;
2386 cr->cr_flags |= CISS_REQ_POLL;
2387 if ((error = ciss_start(cr)) != 0)
2392 ciss_perf_done(sc, &qh);
2395 ciss_complete(sc, &qh);
2396 if (!(cr->cr_flags & CISS_REQ_POLL))
2399 } while (timeout-- >= 0);
2400 return(EWOULDBLOCK);
2403 /************************************************************************
2404 * Issue a request and sleep waiting for completion.
2406 * Timeout in milliseconds. Note that a spurious wakeup will reset
2410 ciss_wait_request(struct ciss_request *cr, int timeout)
2416 cr->cr_flags |= CISS_REQ_SLEEP;
2417 if ((error = ciss_start(cr)) != 0)
2420 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2421 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2422 SBT_1MS * timeout, 0, 0);
2428 /************************************************************************
2429 * Abort a request. Note that a potential exists here to race the
2430 * request being completed; the caller must deal with this.
2433 ciss_abort_request(struct ciss_request *ar)
2435 struct ciss_request *cr;
2436 struct ciss_command *cc;
2437 struct ciss_message_cdb *cmc;
2443 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2446 /* build the abort command */
2448 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2449 cc->header.address.physical.target = 0;
2450 cc->header.address.physical.bus = 0;
2451 cc->cdb.cdb_length = sizeof(*cmc);
2452 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2453 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2454 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2455 cc->cdb.timeout = 30;
2457 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2458 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2459 cmc->type = CISS_MESSAGE_ABORT_TASK;
2460 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2463 * Send the request and wait for a response. If we believe we
2464 * aborted the request OK, clear the flag that indicates it's
2467 error = ciss_synch_request(cr, 35 * 1000);
2469 error = ciss_report_request(cr, NULL, NULL);
2470 ciss_release_request(cr);
2477 /************************************************************************
2478 * Fetch and initialise a request
2481 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2483 struct ciss_request *cr;
2488 * Get a request and clean it up.
2490 if ((cr = ciss_dequeue_free(sc)) == NULL)
2495 cr->cr_complete = NULL;
2496 cr->cr_private = NULL;
2497 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2499 ciss_preen_command(cr);
2505 ciss_preen_command(struct ciss_request *cr)
2507 struct ciss_command *cc;
2511 * Clean up the command structure.
2513 * Note that we set up the error_info structure here, since the
2514 * length can be overwritten by any command.
2517 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2518 cc->header.sg_total = 0;
2519 cc->header.host_tag = cr->cr_tag << 2;
2520 cc->header.host_tag_zeroes = 0;
2521 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2522 cmdphys = cr->cr_ccphys;
2523 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2524 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2527 /************************************************************************
2528 * Release a request to the free list.
2531 ciss_release_request(struct ciss_request *cr)
2533 struct ciss_softc *sc;
2539 /* release the request to the free queue */
2540 ciss_requeue_free(cr);
2543 /************************************************************************
2544 * Allocate a request that will be used to send a BMIC command. Do some
2545 * of the common setup here to avoid duplicating it everywhere else.
2548 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2549 int opcode, void **bufp, size_t bufsize)
2551 struct ciss_request *cr;
2552 struct ciss_command *cc;
2553 struct ciss_bmic_cdb *cbc;
2566 if ((error = ciss_get_request(sc, &cr)) != 0)
2570 * Allocate data storage if requested, determine the data direction.
2573 if ((bufsize > 0) && (bufp != NULL)) {
2574 if (*bufp == NULL) {
2575 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2581 dataout = 1; /* we are given a buffer, so we are writing */
2586 * Build a CISS BMIC command to get the logical drive ID.
2589 cr->cr_length = bufsize;
2591 cr->cr_flags = CISS_REQ_DATAIN;
2594 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2595 cc->header.address.physical.bus = 0;
2596 cc->header.address.physical.target = 0;
2597 cc->cdb.cdb_length = sizeof(*cbc);
2598 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2599 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2600 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2601 cc->cdb.timeout = 0;
2603 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2604 bzero(cbc, sizeof(*cbc));
2605 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2606 cbc->bmic_opcode = opcode;
2607 cbc->size = htons((u_int16_t)bufsize);
2612 ciss_release_request(cr);
2615 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2621 /************************************************************************
2622 * Handle a command passed in from userspace.
2625 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2627 struct ciss_request *cr;
2628 struct ciss_command *cc;
2629 struct ciss_error_info *ce;
2639 while (ciss_get_request(sc, &cr) != 0)
2640 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2644 * Allocate an in-kernel databuffer if required, copy in user data.
2646 mtx_unlock(&sc->ciss_mtx);
2647 cr->cr_length = ioc->buf_size;
2648 if (ioc->buf_size > 0) {
2649 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2653 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2654 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2660 * Build the request based on the user command.
2662 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2663 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2665 /* XXX anything else to populate here? */
2666 mtx_lock(&sc->ciss_mtx);
2671 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2672 debug(0, "request failed - %d", error);
2677 * Check to see if the command succeeded.
2679 ce = (struct ciss_error_info *)&(cc->sg[0]);
2680 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2681 bzero(ce, sizeof(*ce));
2684 * Copy the results back to the user.
2686 bcopy(ce, &ioc->error_info, sizeof(*ce));
2687 mtx_unlock(&sc->ciss_mtx);
2688 if ((ioc->buf_size > 0) &&
2689 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2690 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2698 mtx_lock(&sc->ciss_mtx);
2701 if ((cr != NULL) && (cr->cr_data != NULL))
2702 free(cr->cr_data, CISS_MALLOC_CLASS);
2704 ciss_release_request(cr);
2708 /************************************************************************
2709 * Map a request into bus-visible space, initialise the scatter/gather
2713 ciss_map_request(struct ciss_request *cr)
2715 struct ciss_softc *sc;
2722 /* check that mapping is necessary */
2723 if (cr->cr_flags & CISS_REQ_MAPPED)
2726 cr->cr_flags |= CISS_REQ_MAPPED;
2728 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2729 BUS_DMASYNC_PREWRITE);
2731 if (cr->cr_data != NULL) {
2732 if (cr->cr_flags & CISS_REQ_CCB)
2733 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2734 cr->cr_datamap, cr->cr_data,
2735 ciss_request_map_helper, cr, 0);
2737 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2738 cr->cr_data, cr->cr_length,
2739 ciss_request_map_helper, cr, 0);
2744 * Post the command to the adapter.
2746 cr->cr_sg_tag = CISS_SG_NONE;
2747 cr->cr_flags |= CISS_REQ_BUSY;
2749 CISS_TL_PERF_POST_CMD(sc, cr);
2751 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2758 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2760 struct ciss_command *cc;
2761 struct ciss_request *cr;
2762 struct ciss_softc *sc;
2767 cr = (struct ciss_request *)arg;
2771 for (i = 0; i < nseg; i++) {
2772 cc->sg[i].address = segs[i].ds_addr;
2773 cc->sg[i].length = segs[i].ds_len;
2774 cc->sg[i].extension = 0;
2776 /* we leave the s/g table entirely within the command */
2777 cc->header.sg_in_list = nseg;
2778 cc->header.sg_total = nseg;
2780 if (cr->cr_flags & CISS_REQ_DATAIN)
2781 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2782 if (cr->cr_flags & CISS_REQ_DATAOUT)
2783 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2786 cr->cr_sg_tag = CISS_SG_NONE;
2788 cr->cr_sg_tag = CISS_SG_1;
2790 cr->cr_sg_tag = CISS_SG_2;
2792 cr->cr_sg_tag = CISS_SG_4;
2794 cr->cr_sg_tag = CISS_SG_8;
2795 else if (nseg <= 16)
2796 cr->cr_sg_tag = CISS_SG_16;
2797 else if (nseg <= 32)
2798 cr->cr_sg_tag = CISS_SG_32;
2800 cr->cr_sg_tag = CISS_SG_MAX;
2803 * Post the command to the adapter.
2805 cr->cr_flags |= CISS_REQ_BUSY;
2807 CISS_TL_PERF_POST_CMD(sc, cr);
2809 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2812 /************************************************************************
2813 * Unmap a request from bus-visible space.
2816 ciss_unmap_request(struct ciss_request *cr)
2818 struct ciss_softc *sc;
2824 /* check that unmapping is necessary */
2825 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2828 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2829 BUS_DMASYNC_POSTWRITE);
2831 if (cr->cr_data == NULL)
2834 if (cr->cr_flags & CISS_REQ_DATAIN)
2835 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2836 if (cr->cr_flags & CISS_REQ_DATAOUT)
2837 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2839 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2841 cr->cr_flags &= ~CISS_REQ_MAPPED;
2844 /************************************************************************
2845 * Attach the driver to CAM.
2847 * We put all the logical drives on a single SCSI bus.
2850 ciss_cam_init(struct ciss_softc *sc)
2857 * Allocate a devq. We can reuse this for the masked physical
2858 * devices if we decide to export these as well.
2860 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2861 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2868 * This naturally wastes a bit of memory. The alternative is to allocate
2869 * and register each bus as it is found, and then track them on a linked
2870 * list. Unfortunately, the driver has a few places where it needs to
2871 * look up the SIM based solely on bus number, and it's unclear whether
2872 * a list traversal would work for these situations.
2874 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2875 CISS_PHYSICAL_BASE);
2876 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2877 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2878 if (sc->ciss_cam_sim == NULL) {
2879 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2883 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2884 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2886 device_get_unit(sc->ciss_dev),
2889 sc->ciss_max_requests - 2,
2890 sc->ciss_cam_devq)) == NULL) {
2891 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2896 * Register bus with this SIM.
2898 mtx_lock(&sc->ciss_mtx);
2899 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2900 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2901 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2902 mtx_unlock(&sc->ciss_mtx);
2906 mtx_unlock(&sc->ciss_mtx);
2909 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2910 CISS_PHYSICAL_BASE; i++) {
2911 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2913 device_get_unit(sc->ciss_dev),
2915 sc->ciss_max_requests - 2,
2916 sc->ciss_cam_devq)) == NULL) {
2917 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2921 mtx_lock(&sc->ciss_mtx);
2922 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2923 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2924 mtx_unlock(&sc->ciss_mtx);
2927 mtx_unlock(&sc->ciss_mtx);
2933 /************************************************************************
2934 * Initiate a rescan of the 'logical devices' SIM
2937 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2943 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2944 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2948 if (xpt_create_path(&ccb->ccb_h.path, NULL,
2949 cam_sim_path(sc->ciss_cam_sim[bus]),
2950 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2951 ciss_printf(sc, "rescan failed (can't create path)\n");
2956 /* scan is now in progress */
2959 /************************************************************************
2960 * Handle requests coming from CAM
2963 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2965 struct ciss_softc *sc;
2966 struct ccb_scsiio *csio;
2970 sc = cam_sim_softc(sim);
2971 bus = cam_sim_bus(sim);
2972 csio = (struct ccb_scsiio *)&ccb->csio;
2973 target = csio->ccb_h.target_id;
2974 physical = CISS_IS_PHYSICAL(bus);
2976 switch (ccb->ccb_h.func_code) {
2978 /* perform SCSI I/O */
2980 if (!ciss_cam_action_io(sim, csio))
2984 /* perform geometry calculations */
2985 case XPT_CALC_GEOMETRY:
2987 struct ccb_calc_geometry *ccg = &ccb->ccg;
2988 struct ciss_ldrive *ld;
2990 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2994 ld = &sc->ciss_logical[bus][target];
2997 * Use the cached geometry settings unless the fault tolerance
3000 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3001 u_int32_t secs_per_cylinder;
3004 ccg->secs_per_track = 32;
3005 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3006 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3008 ccg->heads = ld->cl_geometry.heads;
3009 ccg->secs_per_track = ld->cl_geometry.sectors;
3010 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3012 ccb->ccb_h.status = CAM_REQ_CMP;
3016 /* handle path attribute inquiry */
3019 struct ccb_pathinq *cpi = &ccb->cpi;
3022 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3024 cpi->version_num = 1;
3025 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3026 cpi->target_sprt = 0;
3028 cpi->max_target = sc->ciss_cfg->max_logical_supported;
3029 cpi->max_lun = 0; /* 'logical drive' channel only */
3030 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3031 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3032 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN);
3033 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3034 cpi->unit_number = cam_sim_unit(sim);
3035 cpi->bus_id = cam_sim_bus(sim);
3036 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3037 cpi->transport = XPORT_SPI;
3038 cpi->transport_version = 2;
3039 cpi->protocol = PROTO_SCSI;
3040 cpi->protocol_version = SCSI_REV_2;
3041 if (sc->ciss_cfg->max_sg_length == 0) {
3044 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3045 * Confusing bit here. max_sg_length is usually a power of 2. We always
3046 * need to subtract 1 to account for partial pages. Then we need to
3047 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3048 * Add 1 so we can then subtract it out in the assignment to maxio.
3049 * The reason for all these shenanigans is to create a maxio value that
3050 * creates IO operations to volumes that yield consistent operations
3051 * with good performance.
3053 sg_length = sc->ciss_cfg->max_sg_length - 1;
3054 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3056 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3057 ccb->ccb_h.status = CAM_REQ_CMP;
3061 case XPT_GET_TRAN_SETTINGS:
3063 struct ccb_trans_settings *cts = &ccb->cts;
3065 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3066 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3068 bus = cam_sim_bus(sim);
3069 target = cts->ccb_h.target_id;
3071 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3072 /* disconnect always OK */
3073 cts->protocol = PROTO_SCSI;
3074 cts->protocol_version = SCSI_REV_2;
3075 cts->transport = XPORT_SPI;
3076 cts->transport_version = 2;
3078 spi->valid = CTS_SPI_VALID_DISC;
3079 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3081 scsi->valid = CTS_SCSI_VALID_TQ;
3082 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3084 cts->ccb_h.status = CAM_REQ_CMP;
3088 default: /* we can't do this */
3089 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3090 ccb->ccb_h.status = CAM_REQ_INVALID;
3097 /************************************************************************
3098 * Handle a CAM SCSI I/O request.
3101 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3103 struct ciss_softc *sc;
3105 struct ciss_request *cr;
3106 struct ciss_command *cc;
3109 sc = cam_sim_softc(sim);
3110 bus = cam_sim_bus(sim);
3111 target = csio->ccb_h.target_id;
3113 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3115 /* check that the CDB pointer is not to a physical address */
3116 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3117 debug(3, " CDB pointer is to physical address");
3118 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3121 /* abandon aborted ccbs or those that have failed validation */
3122 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3123 debug(3, "abandoning CCB due to abort/validation failure");
3127 /* handle emulation of some SCSI commands ourself */
3128 if (ciss_cam_emulate(sc, csio))
3132 * Get a request to manage this command. If we can't, return the
3133 * ccb, freeze the queue and flag so that we unfreeze it when a
3134 * request completes.
3136 if ((error = ciss_get_request(sc, &cr)) != 0) {
3137 xpt_freeze_simq(sim, 1);
3138 sc->ciss_flags |= CISS_FLAG_BUSY;
3139 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3144 * Build the command.
3148 cr->cr_length = csio->dxfer_len;
3149 cr->cr_complete = ciss_cam_complete;
3150 cr->cr_private = csio;
3153 * Target the right logical volume.
3155 if (CISS_IS_PHYSICAL(bus))
3156 cc->header.address =
3157 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3159 cc->header.address =
3160 sc->ciss_logical[bus][target].cl_address;
3161 cc->cdb.cdb_length = csio->cdb_len;
3162 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3163 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3164 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3165 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3166 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3167 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3168 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3169 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3173 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3175 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3176 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3177 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3179 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3183 * Submit the request to the adapter.
3185 * Note that this may fail if we're unable to map the request (and
3186 * if we ever learn a transport layer other than simple, may fail
3187 * if the adapter rejects the command).
3189 if ((error = ciss_start(cr)) != 0) {
3190 xpt_freeze_simq(sim, 1);
3191 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3192 if (error == EINPROGRESS) {
3195 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3196 ciss_release_request(cr);
3204 /************************************************************************
3205 * Emulate SCSI commands the adapter doesn't handle as we might like.
3208 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3213 target = csio->ccb_h.target_id;
3214 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3215 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3216 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3218 if (CISS_IS_PHYSICAL(bus)) {
3219 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3220 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3221 xpt_done((union ccb *)csio);
3228 * Handle requests for volumes that don't exist or are not online.
3229 * A selection timeout is slightly better than an illegal request.
3230 * Other errors might be better.
3232 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3233 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3234 xpt_done((union ccb *)csio);
3238 /* if we have to fake Synchronise Cache */
3239 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3241 * If this is a Synchronise Cache command, typically issued when
3242 * a device is closed, flush the adapter and complete now.
3244 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3245 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3246 ciss_flush_adapter(sc);
3247 csio->ccb_h.status |= CAM_REQ_CMP;
3248 xpt_done((union ccb *)csio);
3254 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3255 * at least one LUN field to be pre created for us, so snag it and fill in
3256 * the least significant byte indicating 1 LUN here. Emulate the command
3257 * return to shut up warning on console of a CDB error. swb
3259 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3260 csio->data_ptr[3] = 8;
3261 csio->ccb_h.status |= CAM_REQ_CMP;
3262 xpt_done((union ccb *)csio);
3269 /************************************************************************
3270 * Check for possibly-completed commands.
3273 ciss_cam_poll(struct cam_sim *sim)
3276 struct ciss_softc *sc = cam_sim_softc(sim);
3282 ciss_perf_done(sc, &qh);
3285 ciss_complete(sc, &qh);
3288 /************************************************************************
3289 * Handle completion of a command - pass results back through the CCB
3292 ciss_cam_complete(struct ciss_request *cr)
3294 struct ciss_softc *sc;
3295 struct ciss_command *cc;
3296 struct ciss_error_info *ce;
3297 struct ccb_scsiio *csio;
3305 ce = (struct ciss_error_info *)&(cc->sg[0]);
3306 csio = (struct ccb_scsiio *)cr->cr_private;
3309 * Extract status values from request.
3311 ciss_report_request(cr, &command_status, &scsi_status);
3312 csio->scsi_status = scsi_status;
3315 * Handle specific SCSI status values.
3317 switch(scsi_status) {
3318 /* no status due to adapter error */
3320 debug(0, "adapter error");
3321 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3324 /* no status due to command completed OK */
3325 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3326 debug(2, "SCSI_STATUS_OK");
3327 csio->ccb_h.status |= CAM_REQ_CMP;
3330 /* check condition, sense data included */
3331 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3332 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3333 ce->sense_length, ce->residual_count);
3334 bzero(&csio->sense_data, SSD_FULL_SIZE);
3335 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3336 if (csio->sense_len > ce->sense_length)
3337 csio->sense_resid = csio->sense_len - ce->sense_length;
3339 csio->sense_resid = 0;
3340 csio->resid = ce->residual_count;
3341 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3344 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3345 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3346 csio->sense_resid, /*show_errors*/ 1));
3351 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3352 debug(0, "SCSI_STATUS_BUSY");
3353 csio->ccb_h.status |= CAM_SCSI_BUSY;
3357 debug(0, "unknown status 0x%x", csio->scsi_status);
3358 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3362 /* handle post-command fixup */
3363 ciss_cam_complete_fixup(sc, csio);
3365 ciss_release_request(cr);
3366 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3367 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3368 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3369 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3371 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3373 xpt_done((union ccb *)csio);
3376 /********************************************************************************
3377 * Fix up the result of some commands here.
3380 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3382 struct scsi_inquiry_data *inq;
3383 struct ciss_ldrive *cl;
3387 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3388 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3389 if (cdb[0] == INQUIRY &&
3390 (cdb[1] & SI_EVPD) == 0 &&
3391 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3392 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3394 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3395 target = csio->ccb_h.target_id;
3396 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3399 * If the controller is in JBOD mode, there are no logical volumes.
3400 * Let the disks be probed and dealt with via CAM. Else, mask off
3401 * the physical disks and setup the parts of the inq structure for
3402 * the logical volume. swb
3404 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3405 if (CISS_IS_PHYSICAL(bus)) {
3406 if (SID_TYPE(inq) == T_DIRECT)
3407 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3410 cl = &sc->ciss_logical[bus][target];
3412 padstr(inq->vendor, "HP",
3414 padstr(inq->product,
3415 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3417 padstr(inq->revision,
3418 ciss_name_ldrive_status(cl->cl_lstatus->status),
3425 /********************************************************************************
3426 * Name the device at (target)
3428 * XXX is this strictly correct?
3431 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3433 struct cam_periph *periph;
3434 struct cam_path *path;
3437 if (CISS_IS_PHYSICAL(bus))
3440 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3443 if (status == CAM_REQ_CMP) {
3444 xpt_path_lock(path);
3445 periph = cam_periph_find(path, NULL);
3446 xpt_path_unlock(path);
3447 xpt_free_path(path);
3448 if (periph != NULL) {
3449 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3450 periph->periph_name, periph->unit_number);
3454 sc->ciss_logical[bus][target].cl_name[0] = 0;
3458 /************************************************************************
3459 * Periodic status monitoring.
3462 ciss_periodic(void *arg)
3464 struct ciss_softc *sc;
3465 struct ciss_request *cr = NULL;
3466 struct ciss_command *cc = NULL;
3471 sc = (struct ciss_softc *)arg;
3474 * Check the adapter heartbeat.
3476 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3477 sc->ciss_heart_attack++;
3478 debug(0, "adapter heart attack in progress 0x%x/%d",
3479 sc->ciss_heartbeat, sc->ciss_heart_attack);
3480 if (sc->ciss_heart_attack == 3) {
3481 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3482 ciss_disable_adapter(sc);
3486 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3487 sc->ciss_heart_attack = 0;
3488 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3492 * Send the NOP message and wait for a response.
3494 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3496 cr->cr_complete = ciss_nop_complete;
3497 cc->cdb.cdb_length = 1;
3498 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3499 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3500 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3501 cc->cdb.timeout = 0;
3502 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3504 if ((error = ciss_start(cr)) != 0) {
3505 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3510 * If the notify event request has died for some reason, or has
3511 * not started yet, restart it.
3513 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3514 debug(0, "(re)starting Event Notify chain");
3515 ciss_notify_event(sc);
3521 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3525 ciss_nop_complete(struct ciss_request *cr)
3527 struct ciss_softc *sc;
3528 static int first_time = 1;
3531 if (ciss_report_request(cr, NULL, NULL) != 0) {
3532 if (first_time == 1) {
3534 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3538 ciss_release_request(cr);
3541 /************************************************************************
3542 * Disable the adapter.
3544 * The all requests in completed queue is failed with hardware error.
3545 * This will cause failover in a multipath configuration.
3548 ciss_disable_adapter(struct ciss_softc *sc)
3551 struct ciss_request *cr;
3552 struct ciss_command *cc;
3553 struct ciss_error_info *ce;
3556 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3557 pci_disable_busmaster(sc->ciss_dev);
3558 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3560 for (i = 1; i < sc->ciss_max_requests; i++) {
3561 cr = &sc->ciss_request[i];
3562 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3566 ce = (struct ciss_error_info *)&(cc->sg[0]);
3567 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3568 ciss_enqueue_complete(cr, &qh);
3572 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3576 * If the request has a callback, invoke it.
3578 if (cr->cr_complete != NULL) {
3579 cr->cr_complete(cr);
3584 * If someone is sleeping on this request, wake them up.
3586 if (cr->cr_flags & CISS_REQ_SLEEP) {
3587 cr->cr_flags &= ~CISS_REQ_SLEEP;
3594 /************************************************************************
3595 * Request a notification response from the adapter.
3597 * If (cr) is NULL, this is the first request of the adapter, so
3598 * reset the adapter's message pointer and start with the oldest
3599 * message available.
3602 ciss_notify_event(struct ciss_softc *sc)
3604 struct ciss_request *cr;
3605 struct ciss_command *cc;
3606 struct ciss_notify_cdb *cnc;
3611 cr = sc->ciss_periodic_notify;
3613 /* get a request if we don't already have one */
3615 if ((error = ciss_get_request(sc, &cr)) != 0) {
3616 debug(0, "can't get notify event request");
3619 sc->ciss_periodic_notify = cr;
3620 cr->cr_complete = ciss_notify_complete;
3621 debug(1, "acquired request %d", cr->cr_tag);
3625 * Get a databuffer if we don't already have one, note that the
3626 * adapter command wants a larger buffer than the actual
3629 if (cr->cr_data == NULL) {
3630 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3631 debug(0, "can't get notify event request buffer");
3635 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3638 /* re-setup the request's command (since we never release it) XXX overkill*/
3639 ciss_preen_command(cr);
3641 /* (re)build the notify event command */
3643 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3644 cc->header.address.physical.bus = 0;
3645 cc->header.address.physical.target = 0;
3647 cc->cdb.cdb_length = sizeof(*cnc);
3648 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3649 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3650 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3651 cc->cdb.timeout = 0; /* no timeout, we hope */
3653 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3654 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3655 cnc->opcode = CISS_OPCODE_READ;
3656 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3657 cnc->timeout = 0; /* no timeout, we hope */
3658 cnc->synchronous = 0;
3660 cnc->seek_to_oldest = 0;
3661 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3665 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3667 /* submit the request */
3668 error = ciss_start(cr);
3673 if (cr->cr_data != NULL)
3674 free(cr->cr_data, CISS_MALLOC_CLASS);
3675 ciss_release_request(cr);
3677 sc->ciss_periodic_notify = NULL;
3678 debug(0, "can't submit notify event request");
3679 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3681 debug(1, "notify event submitted");
3682 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3687 ciss_notify_complete(struct ciss_request *cr)
3689 struct ciss_command *cc;
3690 struct ciss_notify *cn;
3691 struct ciss_softc *sc;
3697 cn = (struct ciss_notify *)cr->cr_data;
3701 * Report request results, decode status.
3703 ciss_report_request(cr, &command_status, &scsi_status);
3706 * Abort the chain on a fatal error.
3708 * XXX which of these are actually errors?
3710 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3711 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3712 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3713 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3714 ciss_name_command_status(command_status));
3715 ciss_release_request(cr);
3716 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3721 * If the adapter gave us a text message, print it.
3723 if (cn->message[0] != 0)
3724 ciss_printf(sc, "*** %.80s\n", cn->message);
3726 debug(0, "notify event class %d subclass %d detail %d",
3727 cn->class, cn->subclass, cn->detail);
3730 * If the response indicates that the notifier has been aborted,
3731 * release the notifier command.
3733 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3734 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3735 (cn->detail == 1)) {
3736 debug(0, "notifier exiting");
3737 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3738 ciss_release_request(cr);
3739 sc->ciss_periodic_notify = NULL;
3740 wakeup(&sc->ciss_periodic_notify);
3742 /* Handle notify events in a kernel thread */
3743 ciss_enqueue_notify(cr);
3744 sc->ciss_periodic_notify = NULL;
3745 wakeup(&sc->ciss_periodic_notify);
3746 wakeup(&sc->ciss_notify);
3749 * Send a new notify event command, if we're not aborting.
3751 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3752 ciss_notify_event(sc);
3756 /************************************************************************
3757 * Abort the Notify Event chain.
3759 * Note that we can't just abort the command in progress; we have to
3760 * explicitly issue an Abort Notify Event command in order for the
3761 * adapter to clean up correctly.
3763 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3764 * the chain will not restart itself.
3767 ciss_notify_abort(struct ciss_softc *sc)
3769 struct ciss_request *cr;
3770 struct ciss_command *cc;
3771 struct ciss_notify_cdb *cnc;
3772 int error, command_status, scsi_status;
3779 /* verify that there's an outstanding command */
3780 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3783 /* get a command to issue the abort with */
3784 if ((error = ciss_get_request(sc, &cr)))
3787 /* get a buffer for the result */
3788 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3789 debug(0, "can't get notify event request buffer");
3793 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3797 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3798 cc->header.address.physical.bus = 0;
3799 cc->header.address.physical.target = 0;
3800 cc->cdb.cdb_length = sizeof(*cnc);
3801 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3802 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3803 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3804 cc->cdb.timeout = 0; /* no timeout, we hope */
3806 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3807 bzero(cnc, sizeof(*cnc));
3808 cnc->opcode = CISS_OPCODE_WRITE;
3809 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3810 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3812 ciss_print_request(cr);
3815 * Submit the request and wait for it to complete.
3817 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3818 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3825 ciss_report_request(cr, &command_status, &scsi_status);
3826 switch(command_status) {
3827 case CISS_CMD_STATUS_SUCCESS:
3829 case CISS_CMD_STATUS_INVALID_COMMAND:
3831 * Some older adapters don't support the CISS version of this
3832 * command. Fall back to using the BMIC version.
3834 error = ciss_notify_abort_bmic(sc);
3839 case CISS_CMD_STATUS_TARGET_STATUS:
3841 * This can happen if the adapter thinks there wasn't an outstanding
3842 * Notify Event command but we did. We clean up here.
3844 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3845 if (sc->ciss_periodic_notify != NULL)
3846 ciss_release_request(sc->ciss_periodic_notify);
3853 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3854 ciss_name_command_status(command_status));
3860 * Sleep waiting for the notifier command to complete. Note
3861 * that if it doesn't, we may end up in a bad situation, since
3862 * the adapter may deliver it later. Also note that the adapter
3863 * requires the Notify Event command to be cancelled in order to
3864 * maintain internal bookkeeping.
3866 while (sc->ciss_periodic_notify != NULL) {
3867 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3868 if (error == EWOULDBLOCK) {
3869 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3875 /* release the cancel request */
3877 if (cr->cr_data != NULL)
3878 free(cr->cr_data, CISS_MALLOC_CLASS);
3879 ciss_release_request(cr);
3882 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3886 /************************************************************************
3887 * Abort the Notify Event chain using a BMIC command.
3890 ciss_notify_abort_bmic(struct ciss_softc *sc)
3892 struct ciss_request *cr;
3893 int error, command_status;
3900 /* verify that there's an outstanding command */
3901 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3905 * Build a BMIC command to cancel the Notify on Event command.
3907 * Note that we are sending a CISS opcode here. Odd.
3909 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3914 * Submit the request and wait for it to complete.
3916 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3917 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3924 ciss_report_request(cr, &command_status, NULL);
3925 switch(command_status) {
3926 case CISS_CMD_STATUS_SUCCESS:
3929 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3930 ciss_name_command_status(command_status));
3937 ciss_release_request(cr);
3941 /************************************************************************
3942 * Handle rescanning all the logical volumes when a notify event
3943 * causes the drives to come online or offline.
3946 ciss_notify_rescan_logical(struct ciss_softc *sc)
3948 struct ciss_lun_report *cll;
3949 struct ciss_ldrive *ld;
3953 * We must rescan all logical volumes to get the right logical
3956 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3957 sc->ciss_cfg->max_logical_supported);
3961 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3964 * Delete any of the drives which were destroyed by the
3967 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3968 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3969 ld = &sc->ciss_logical[i][j];
3971 if (ld->cl_update == 0)
3974 if (ld->cl_status != CISS_LD_ONLINE) {
3975 ciss_cam_rescan_target(sc, i, j);
3978 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3980 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3982 ld->cl_ldrive = NULL;
3983 ld->cl_lstatus = NULL;
3989 * Scan for new drives.
3991 for (i = 0; i < ndrives; i++) {
3994 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3995 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3996 ld = &sc->ciss_logical[bus][target];
3998 if (ld->cl_update == 0)
4002 ld->cl_address = cll->lun[i];
4003 ld->cl_controller = &sc->ciss_controllers[bus];
4004 if (ciss_identify_logical(sc, ld) == 0) {
4005 ciss_cam_rescan_target(sc, bus, target);
4008 free(cll, CISS_MALLOC_CLASS);
4011 /************************************************************************
4012 * Handle a notify event relating to the status of a logical drive.
4014 * XXX need to be able to defer some of these to properly handle
4015 * calling the "ID Physical drive" command, unless the 'extended'
4016 * drive IDs are always in BIG_MAP format.
4019 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4021 struct ciss_ldrive *ld;
4022 int ostatus, bus, target;
4026 bus = cn->device.physical.bus;
4027 target = cn->data.logical_status.logical_drive;
4028 ld = &sc->ciss_logical[bus][target];
4030 switch (cn->subclass) {
4031 case CISS_NOTIFY_LOGICAL_STATUS:
4032 switch (cn->detail) {
4034 ciss_name_device(sc, bus, target);
4035 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4036 cn->data.logical_status.logical_drive, ld->cl_name,
4037 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4038 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4039 cn->data.logical_status.spare_state,
4040 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4043 * Update our idea of the drive's status.
4045 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4046 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4047 if (ld->cl_lstatus != NULL)
4048 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4051 * Have CAM rescan the drive if its status has changed.
4053 if (ostatus != ld->cl_status) {
4055 ciss_notify_rescan_logical(sc);
4060 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4061 ciss_name_device(sc, bus, target);
4062 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4063 cn->data.logical_status.logical_drive, ld->cl_name);
4064 ciss_accept_media(sc, ld);
4067 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4068 ciss_notify_rescan_logical(sc);
4073 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4074 cn->data.rebuild_aborted.logical_drive,
4076 (cn->detail == 2) ? "read" : "write");
4081 case CISS_NOTIFY_LOGICAL_ERROR:
4082 if (cn->detail == 0) {
4083 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4084 cn->data.io_error.logical_drive,
4086 cn->data.io_error.failure_bus,
4087 cn->data.io_error.failure_drive);
4088 /* XXX should we take the drive down at this point, or will we be told? */
4092 case CISS_NOTIFY_LOGICAL_SURFACE:
4093 if (cn->detail == 0)
4094 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4095 cn->data.consistency_completed.logical_drive,
4101 /************************************************************************
4102 * Handle a notify event relating to the status of a physical drive.
4105 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4109 /************************************************************************
4110 * Handle a notify event relating to the status of a physical drive.
4113 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4115 struct ciss_lun_report *cll = NULL;
4118 switch (cn->subclass) {
4119 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4120 case CISS_NOTIFY_HOTPLUG_NONDISK:
4121 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4123 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4125 if (cn->detail == 0) {
4127 * Mark the device offline so that it'll start producing selection
4128 * timeouts to the upper layer.
4130 if ((bus >= 0) && (target >= 0))
4131 sc->ciss_physical[bus][target].cp_online = 0;
4134 * Rescan the physical lun list for new items
4136 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4137 sc->ciss_cfg->max_physical_supported);
4139 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4142 ciss_filter_physical(sc, cll);
4147 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4152 free(cll, CISS_MALLOC_CLASS);
4155 /************************************************************************
4156 * Handle deferred processing of notify events. Notify events may need
4157 * sleep which is unsafe during an interrupt.
4160 ciss_notify_thread(void *arg)
4162 struct ciss_softc *sc;
4163 struct ciss_request *cr;
4164 struct ciss_notify *cn;
4166 sc = (struct ciss_softc *)arg;
4167 mtx_lock(&sc->ciss_mtx);
4170 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4171 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4172 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4175 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4178 cr = ciss_dequeue_notify(sc);
4182 cn = (struct ciss_notify *)cr->cr_data;
4184 switch (cn->class) {
4185 case CISS_NOTIFY_HOTPLUG:
4186 ciss_notify_hotplug(sc, cn);
4188 case CISS_NOTIFY_LOGICAL:
4189 ciss_notify_logical(sc, cn);
4191 case CISS_NOTIFY_PHYSICAL:
4192 ciss_notify_physical(sc, cn);
4196 ciss_release_request(cr);
4199 sc->ciss_notify_thread = NULL;
4200 wakeup(&sc->ciss_notify_thread);
4202 mtx_unlock(&sc->ciss_mtx);
4206 /************************************************************************
4207 * Start the notification kernel thread.
4210 ciss_spawn_notify_thread(struct ciss_softc *sc)
4213 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4214 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4215 device_get_unit(sc->ciss_dev)))
4216 panic("Could not create notify thread\n");
4219 /************************************************************************
4220 * Kill the notification kernel thread.
4223 ciss_kill_notify_thread(struct ciss_softc *sc)
4226 if (sc->ciss_notify_thread == NULL)
4229 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4230 wakeup(&sc->ciss_notify);
4231 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4234 /************************************************************************
4238 ciss_print_request(struct ciss_request *cr)
4240 struct ciss_softc *sc;
4241 struct ciss_command *cc;
4247 ciss_printf(sc, "REQUEST @ %p\n", cr);
4248 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4249 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4250 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4251 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4252 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4253 switch(cc->header.address.mode.mode) {
4254 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4255 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4256 ciss_printf(sc, " physical bus %d target %d\n",
4257 cc->header.address.physical.bus, cc->header.address.physical.target);
4259 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4260 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4263 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4264 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4265 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4266 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4268 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4269 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4271 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4273 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4274 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4275 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4277 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4278 /* XXX print error info */
4280 /* since we don't use chained s/g, don't support it here */
4281 for (i = 0; i < cc->header.sg_in_list; i++) {
4283 ciss_printf(sc, " ");
4284 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4285 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4291 /************************************************************************
4292 * Print information about the status of a logical drive.
4295 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4299 if (ld->cl_lstatus == NULL) {
4300 printf("does not exist\n");
4304 /* print drive status */
4305 switch(ld->cl_lstatus->status) {
4306 case CISS_LSTATUS_OK:
4309 case CISS_LSTATUS_INTERIM_RECOVERY:
4310 printf("in interim recovery mode\n");
4312 case CISS_LSTATUS_READY_RECOVERY:
4313 printf("ready to begin recovery\n");
4315 case CISS_LSTATUS_RECOVERING:
4316 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4317 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4318 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4319 bus, target, ld->cl_lstatus->blocks_to_recover);
4321 case CISS_LSTATUS_EXPANDING:
4322 printf("being expanded, %u blocks remaining\n",
4323 ld->cl_lstatus->blocks_to_recover);
4325 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4326 printf("queued for expansion\n");
4328 case CISS_LSTATUS_FAILED:
4329 printf("queued for expansion\n");
4331 case CISS_LSTATUS_WRONG_PDRIVE:
4332 printf("wrong physical drive inserted\n");
4334 case CISS_LSTATUS_MISSING_PDRIVE:
4335 printf("missing a needed physical drive\n");
4337 case CISS_LSTATUS_BECOMING_READY:
4338 printf("becoming ready\n");
4342 /* print failed physical drives */
4343 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4344 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4345 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4348 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4349 ld->cl_lstatus->drive_failure_map[i]);
4354 #include "opt_ddb.h"
4356 #include <ddb/ddb.h>
4357 /************************************************************************
4358 * Print information about the controller/driver.
4361 ciss_print_adapter(struct ciss_softc *sc)
4365 ciss_printf(sc, "ADAPTER:\n");
4366 for (i = 0; i < CISSQ_COUNT; i++) {
4367 ciss_printf(sc, "%s %d/%d\n",
4369 i == 1 ? "busy" : "complete",
4370 sc->ciss_qstat[i].q_length,
4371 sc->ciss_qstat[i].q_max);
4373 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4374 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4375 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4377 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4378 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4379 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4380 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4384 /* XXX Should physical drives be printed out here? */
4386 for (i = 1; i < sc->ciss_max_requests; i++)
4387 ciss_print_request(sc->ciss_request + i);
4391 DB_COMMAND(ciss_prt, db_ciss_prt)
4393 struct ciss_softc *sc;
4397 dc = devclass_find("ciss");
4399 printf("%s: can't find devclass!\n", __func__);
4402 maxciss = devclass_get_maxunit(dc);
4403 for (i = 0; i < maxciss; i++) {
4404 sc = devclass_get_softc(dc, i);
4405 ciss_print_adapter(sc);
4411 /************************************************************************
4412 * Return a name for a logical drive status value.
4415 ciss_name_ldrive_status(int status)
4418 case CISS_LSTATUS_OK:
4420 case CISS_LSTATUS_FAILED:
4422 case CISS_LSTATUS_NOT_CONFIGURED:
4423 return("not configured");
4424 case CISS_LSTATUS_INTERIM_RECOVERY:
4425 return("interim recovery");
4426 case CISS_LSTATUS_READY_RECOVERY:
4427 return("ready for recovery");
4428 case CISS_LSTATUS_RECOVERING:
4429 return("recovering");
4430 case CISS_LSTATUS_WRONG_PDRIVE:
4431 return("wrong physical drive inserted");
4432 case CISS_LSTATUS_MISSING_PDRIVE:
4433 return("missing physical drive");
4434 case CISS_LSTATUS_EXPANDING:
4435 return("expanding");
4436 case CISS_LSTATUS_BECOMING_READY:
4437 return("becoming ready");
4438 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4439 return("queued for expansion");
4441 return("unknown status");
4444 /************************************************************************
4445 * Return an online/offline/nonexistent value for a logical drive
4449 ciss_decode_ldrive_status(int status)
4452 case CISS_LSTATUS_NOT_CONFIGURED:
4453 return(CISS_LD_NONEXISTENT);
4455 case CISS_LSTATUS_OK:
4456 case CISS_LSTATUS_INTERIM_RECOVERY:
4457 case CISS_LSTATUS_READY_RECOVERY:
4458 case CISS_LSTATUS_RECOVERING:
4459 case CISS_LSTATUS_EXPANDING:
4460 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4461 return(CISS_LD_ONLINE);
4463 case CISS_LSTATUS_FAILED:
4464 case CISS_LSTATUS_WRONG_PDRIVE:
4465 case CISS_LSTATUS_MISSING_PDRIVE:
4466 case CISS_LSTATUS_BECOMING_READY:
4468 return(CISS_LD_OFFLINE);
4473 /************************************************************************
4474 * Return a name for a logical drive's organisation.
4477 ciss_name_ldrive_org(int org)
4480 case CISS_LDRIVE_RAID0:
4482 case CISS_LDRIVE_RAID1:
4483 return("RAID 1(1+0)");
4484 case CISS_LDRIVE_RAID4:
4486 case CISS_LDRIVE_RAID5:
4488 case CISS_LDRIVE_RAID51:
4490 case CISS_LDRIVE_RAIDADG:
4496 /************************************************************************
4497 * Return a name for a command status value.
4500 ciss_name_command_status(int status)
4503 case CISS_CMD_STATUS_SUCCESS:
4505 case CISS_CMD_STATUS_TARGET_STATUS:
4506 return("target status");
4507 case CISS_CMD_STATUS_DATA_UNDERRUN:
4508 return("data underrun");
4509 case CISS_CMD_STATUS_DATA_OVERRUN:
4510 return("data overrun");
4511 case CISS_CMD_STATUS_INVALID_COMMAND:
4512 return("invalid command");
4513 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4514 return("protocol error");
4515 case CISS_CMD_STATUS_HARDWARE_ERROR:
4516 return("hardware error");
4517 case CISS_CMD_STATUS_CONNECTION_LOST:
4518 return("connection lost");
4519 case CISS_CMD_STATUS_ABORTED:
4521 case CISS_CMD_STATUS_ABORT_FAILED:
4522 return("abort failed");
4523 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4524 return("unsolicited abort");
4525 case CISS_CMD_STATUS_TIMEOUT:
4527 case CISS_CMD_STATUS_UNABORTABLE:
4528 return("unabortable");
4530 return("unknown status");
4533 /************************************************************************
4534 * Handle an open on the control device.
4537 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4539 struct ciss_softc *sc;
4543 sc = (struct ciss_softc *)dev->si_drv1;
4545 /* we might want to veto if someone already has us open */
4547 mtx_lock(&sc->ciss_mtx);
4548 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4549 mtx_unlock(&sc->ciss_mtx);
4553 /************************************************************************
4554 * Handle the last close on the control device.
4557 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4559 struct ciss_softc *sc;
4563 sc = (struct ciss_softc *)dev->si_drv1;
4565 mtx_lock(&sc->ciss_mtx);
4566 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4567 mtx_unlock(&sc->ciss_mtx);
4571 /********************************************************************************
4572 * Handle adapter-specific control operations.
4574 * Note that the API here is compatible with the Linux driver, in order to
4575 * simplify the porting of Compaq's userland tools.
4578 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4580 struct ciss_softc *sc;
4581 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4583 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4584 IOCTL_Command_struct ioc_swab;
4590 sc = (struct ciss_softc *)dev->si_drv1;
4592 mtx_lock(&sc->ciss_mtx);
4595 case CCISS_GETQSTATS:
4597 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4599 switch (cr->cs_item) {
4602 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4603 sizeof(struct ciss_qstat));
4613 case CCISS_GETPCIINFO:
4615 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4617 pis->bus = pci_get_bus(sc->ciss_dev);
4618 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4619 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4620 pci_get_subdevice(sc->ciss_dev);
4625 case CCISS_GETINTINFO:
4627 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4629 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4630 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4635 case CCISS_SETINTINFO:
4637 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4639 if ((cis->delay == 0) && (cis->count == 0)) {
4645 * XXX apparently this is only safe if the controller is idle,
4646 * we should suspend it before doing this.
4648 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4649 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4651 if (ciss_update_config(sc))
4654 /* XXX resume the controller here */
4658 case CCISS_GETNODENAME:
4659 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4660 sizeof(NodeName_type));
4663 case CCISS_SETNODENAME:
4664 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4665 sizeof(NodeName_type));
4666 if (ciss_update_config(sc))
4670 case CCISS_GETHEARTBEAT:
4671 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4674 case CCISS_GETBUSTYPES:
4675 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4678 case CCISS_GETFIRMVER:
4679 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4680 sizeof(FirmwareVer_type));
4683 case CCISS_GETDRIVERVER:
4684 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4687 case CCISS_REVALIDVOLS:
4689 * This is a bit ugly; to do it "right" we really need
4690 * to find any disks that have changed, kick CAM off them,
4691 * then rescan only these disks. It'd be nice if they
4692 * a) told us which disk(s) they were going to play with,
4693 * and b) which ones had arrived. 8(
4698 case CCISS_PASSTHRU32:
4699 ioc_swab.LUN_info = ioc32->LUN_info;
4700 ioc_swab.Request = ioc32->Request;
4701 ioc_swab.error_info = ioc32->error_info;
4702 ioc_swab.buf_size = ioc32->buf_size;
4703 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4708 case CCISS_PASSTHRU:
4709 error = ciss_user_command(sc, ioc);
4713 debug(0, "unknown ioctl 0x%lx", cmd);
4715 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4716 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4717 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4718 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4719 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4720 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4721 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4722 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4723 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4724 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4725 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4731 mtx_unlock(&sc->ciss_mtx);