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>
114 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
115 "ciss internal data buffers");
118 static int ciss_lookup(device_t dev);
119 static int ciss_probe(device_t dev);
120 static int ciss_attach(device_t dev);
121 static int ciss_detach(device_t dev);
122 static int ciss_shutdown(device_t dev);
124 /* (de)initialisation functions, control wrappers */
125 static int ciss_init_pci(struct ciss_softc *sc);
126 static int ciss_setup_msix(struct ciss_softc *sc);
127 static int ciss_init_perf(struct ciss_softc *sc);
128 static int ciss_wait_adapter(struct ciss_softc *sc);
129 static int ciss_flush_adapter(struct ciss_softc *sc);
130 static int ciss_init_requests(struct ciss_softc *sc);
131 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
132 int nseg, int error);
133 static int ciss_identify_adapter(struct ciss_softc *sc);
134 static int ciss_init_logical(struct ciss_softc *sc);
135 static int ciss_init_physical(struct ciss_softc *sc);
136 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
137 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
138 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
139 static int ciss_update_config(struct ciss_softc *sc);
140 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
141 static void ciss_init_sysctl(struct ciss_softc *sc);
142 static void ciss_soft_reset(struct ciss_softc *sc);
143 static void ciss_free(struct ciss_softc *sc);
144 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
145 static void ciss_kill_notify_thread(struct ciss_softc *sc);
147 /* request submission/completion */
148 static int ciss_start(struct ciss_request *cr);
149 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
150 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
151 static void ciss_intr(void *arg);
152 static void ciss_perf_intr(void *arg);
153 static void ciss_perf_msi_intr(void *arg);
154 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
155 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
156 static int ciss_synch_request(struct ciss_request *cr, int timeout);
157 static int ciss_poll_request(struct ciss_request *cr, int timeout);
158 static int ciss_wait_request(struct ciss_request *cr, int timeout);
160 static int ciss_abort_request(struct ciss_request *cr);
163 /* request queueing */
164 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
165 static void ciss_preen_command(struct ciss_request *cr);
166 static void ciss_release_request(struct ciss_request *cr);
168 /* request helpers */
169 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
170 int opcode, void **bufp, size_t bufsize);
171 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
174 static int ciss_map_request(struct ciss_request *cr);
175 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
176 int nseg, int error);
177 static void ciss_unmap_request(struct ciss_request *cr);
180 static int ciss_cam_init(struct ciss_softc *sc);
181 static void ciss_cam_rescan_target(struct ciss_softc *sc,
182 int bus, int target);
183 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
184 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
185 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
186 static void ciss_cam_poll(struct cam_sim *sim);
187 static void ciss_cam_complete(struct ciss_request *cr);
188 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
189 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
191 /* periodic status monitoring */
192 static void ciss_periodic(void *arg);
193 static void ciss_nop_complete(struct ciss_request *cr);
194 static void ciss_disable_adapter(struct ciss_softc *sc);
195 static void ciss_notify_event(struct ciss_softc *sc);
196 static void ciss_notify_complete(struct ciss_request *cr);
197 static int ciss_notify_abort(struct ciss_softc *sc);
198 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
199 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
200 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
201 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
203 /* debugging output */
205 static void ciss_print_request(struct ciss_request *cr);
207 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
208 static const char *ciss_name_ldrive_status(int status);
209 static int ciss_decode_ldrive_status(int status);
210 static const char *ciss_name_ldrive_org(int org);
211 static const char *ciss_name_command_status(int status);
216 static device_method_t ciss_methods[] = {
217 /* Device interface */
218 DEVMETHOD(device_probe, ciss_probe),
219 DEVMETHOD(device_attach, ciss_attach),
220 DEVMETHOD(device_detach, ciss_detach),
221 DEVMETHOD(device_shutdown, ciss_shutdown),
225 static driver_t ciss_pci_driver = {
228 sizeof(struct ciss_softc)
232 * Control device interface.
234 static d_open_t ciss_open;
235 static d_close_t ciss_close;
236 static d_ioctl_t ciss_ioctl;
238 static struct cdevsw ciss_cdevsw = {
239 .d_version = D_VERSION,
242 .d_close = ciss_close,
243 .d_ioctl = ciss_ioctl,
248 * This tunable can be set at boot time and controls whether physical devices
249 * that are marked hidden by the firmware should be exposed anyways.
251 static unsigned int ciss_expose_hidden_physical = 0;
252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
254 static unsigned int ciss_nop_message_heartbeat = 0;
255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
258 * This tunable can force a particular transport to be used:
261 * 2 : force performant
263 static int ciss_force_transport = 0;
264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
267 * This tunable can force a particular interrupt delivery method to be used:
272 static int ciss_force_interrupt = 0;
273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
275 /************************************************************************
276 * CISS adapters amazingly don't have a defined programming interface
277 * value. (One could say some very despairing things about PCI and
278 * people just not getting the general idea.) So we are forced to
279 * stick with matching against subvendor/subdevice, and thus have to
280 * be updated for every new CISS adapter that appears.
282 #define CISS_BOARD_UNKNWON 0
283 #define CISS_BOARD_SA5 1
284 #define CISS_BOARD_SA5B 2
285 #define CISS_BOARD_NOMSI (1<<4)
286 #define CISS_BOARD_SIMPLE (1<<5)
294 } ciss_vendor_data[] = {
295 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
296 "Compaq Smart Array 5300" },
297 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
298 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
299 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
300 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
301 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
302 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
303 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
304 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
305 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
306 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
307 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
308 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
309 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
310 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
311 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
312 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
313 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
314 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
317 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
318 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
319 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
320 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
321 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
322 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
325 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
326 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
327 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
328 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
329 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
330 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
331 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
332 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
333 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
334 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
335 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
336 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
337 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
338 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
339 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
340 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
341 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
342 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
343 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
344 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
345 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
346 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
347 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
348 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
349 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
350 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
351 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
352 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
353 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
354 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
355 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
356 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
357 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
358 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
359 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
360 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
361 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
362 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
363 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
364 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" },
365 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
366 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
370 static devclass_t ciss_devclass;
371 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
372 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data,
373 nitems(ciss_vendor_data) - 1);
374 MODULE_DEPEND(ciss, cam, 1, 1, 1);
375 MODULE_DEPEND(ciss, pci, 1, 1, 1);
377 /************************************************************************
378 * Find a match for the device in our list of known adapters.
381 ciss_lookup(device_t dev)
385 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
386 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
387 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
393 /************************************************************************
394 * Match a known CISS adapter.
397 ciss_probe(device_t dev)
401 i = ciss_lookup(dev);
403 device_set_desc(dev, ciss_vendor_data[i].desc);
404 return(BUS_PROBE_DEFAULT);
409 /************************************************************************
410 * Attach the driver to this adapter.
413 ciss_attach(device_t dev)
415 struct ciss_softc *sc;
421 /* print structure/union sizes */
422 debug_struct(ciss_command);
423 debug_struct(ciss_header);
424 debug_union(ciss_device_address);
425 debug_struct(ciss_cdb);
426 debug_struct(ciss_report_cdb);
427 debug_struct(ciss_notify_cdb);
428 debug_struct(ciss_notify);
429 debug_struct(ciss_message_cdb);
430 debug_struct(ciss_error_info_pointer);
431 debug_struct(ciss_error_info);
432 debug_struct(ciss_sg_entry);
433 debug_struct(ciss_config_table);
434 debug_struct(ciss_bmic_cdb);
435 debug_struct(ciss_bmic_id_ldrive);
436 debug_struct(ciss_bmic_id_lstatus);
437 debug_struct(ciss_bmic_id_table);
438 debug_struct(ciss_bmic_id_pdrive);
439 debug_struct(ciss_bmic_blink_pdrive);
440 debug_struct(ciss_bmic_flush_cache);
441 debug_const(CISS_MAX_REQUESTS);
442 debug_const(CISS_MAX_LOGICAL);
443 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
444 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
445 debug_const(CISS_COMMAND_ALLOC_SIZE);
446 debug_const(CISS_COMMAND_SG_LENGTH);
448 debug_type(cciss_pci_info_struct);
449 debug_type(cciss_coalint_struct);
450 debug_type(cciss_coalint_struct);
451 debug_type(NodeName_type);
452 debug_type(NodeName_type);
453 debug_type(Heartbeat_type);
454 debug_type(BusTypes_type);
455 debug_type(FirmwareVer_type);
456 debug_type(DriverVer_type);
457 debug_type(IOCTL_Command_struct);
460 sc = device_get_softc(dev);
462 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
463 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
466 * Do PCI-specific init.
468 if ((error = ciss_init_pci(sc)) != 0)
472 * Initialise driver queues.
475 ciss_initq_notify(sc);
478 * Initialize device sysctls.
480 ciss_init_sysctl(sc);
483 * Initialise command/request pool.
485 if ((error = ciss_init_requests(sc)) != 0)
489 * Get adapter information.
491 if ((error = ciss_identify_adapter(sc)) != 0)
495 * Find all the physical devices.
497 if ((error = ciss_init_physical(sc)) != 0)
501 * Build our private table of logical devices.
503 if ((error = ciss_init_logical(sc)) != 0)
507 * Enable interrupts so that the CAM scan can complete.
509 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
512 * Initialise the CAM interface.
514 if ((error = ciss_cam_init(sc)) != 0)
518 * Start the heartbeat routine and event chain.
523 * Create the control device.
525 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
526 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
527 "ciss%d", device_get_unit(sc->ciss_dev));
528 sc->ciss_dev_t->si_drv1 = sc;
531 * The adapter is running; synchronous commands can now sleep
532 * waiting for an interrupt to signal completion.
534 sc->ciss_flags |= CISS_FLAG_RUNNING;
536 ciss_spawn_notify_thread(sc);
541 /* ciss_free() expects the mutex to be held */
542 mtx_lock(&sc->ciss_mtx);
548 /************************************************************************
549 * Detach the driver from this adapter.
552 ciss_detach(device_t dev)
554 struct ciss_softc *sc = device_get_softc(dev);
558 mtx_lock(&sc->ciss_mtx);
559 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
560 mtx_unlock(&sc->ciss_mtx);
564 /* flush adapter cache */
565 ciss_flush_adapter(sc);
567 /* release all resources. The mutex is released and freed here too. */
573 /************************************************************************
574 * Prepare adapter for system shutdown.
577 ciss_shutdown(device_t dev)
579 struct ciss_softc *sc = device_get_softc(dev);
583 mtx_lock(&sc->ciss_mtx);
584 /* flush adapter cache */
585 ciss_flush_adapter(sc);
587 if (sc->ciss_soft_reset)
589 mtx_unlock(&sc->ciss_mtx);
595 ciss_init_sysctl(struct ciss_softc *sc)
598 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
599 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
600 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
603 /************************************************************************
604 * Perform PCI-specific attachment actions.
607 ciss_init_pci(struct ciss_softc *sc)
609 uintptr_t cbase, csize, cofs;
610 uint32_t method, supported_methods;
611 int error, sqmask, i;
617 * Work out adapter type.
619 i = ciss_lookup(sc->ciss_dev);
621 ciss_printf(sc, "unknown adapter type\n");
625 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
626 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
627 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
628 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
631 * XXX Big hammer, masks/unmasks all possible interrupts. This should
632 * work on all hardware variants. Need to add code to handle the
633 * "controller crashed" interrupt bit that this unmasks.
639 * Allocate register window first (we need this to find the config
643 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
644 if ((sc->ciss_regs_resource =
645 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
646 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
647 ciss_printf(sc, "can't allocate register window\n");
650 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
651 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
654 * Find the BAR holding the config structure. If it's not the one
655 * we already mapped for registers, map it too.
657 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
658 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
659 if ((sc->ciss_cfg_resource =
660 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
661 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
662 ciss_printf(sc, "can't allocate config window\n");
665 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
666 csize = rman_get_end(sc->ciss_cfg_resource) -
667 rman_get_start(sc->ciss_cfg_resource) + 1;
669 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
670 csize = rman_get_end(sc->ciss_regs_resource) -
671 rman_get_start(sc->ciss_regs_resource) + 1;
673 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
676 * Use the base/size/offset values we just calculated to
677 * sanity-check the config structure. If it's OK, point to it.
679 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
680 ciss_printf(sc, "config table outside window\n");
683 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
684 debug(1, "config struct at %p", sc->ciss_cfg);
687 * Calculate the number of request structures/commands we are
688 * going to provide for this adapter.
690 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
693 * Validate the config structure. If we supported other transport
694 * methods, we could select amongst them at this point in time.
696 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
697 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
698 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
699 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
704 * Select the mode of operation, prefer Performant.
706 if (!(sc->ciss_cfg->supported_methods &
707 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
708 ciss_printf(sc, "No supported transport layers: 0x%x\n",
709 sc->ciss_cfg->supported_methods);
712 switch (ciss_force_transport) {
714 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
717 supported_methods = CISS_TRANSPORT_METHOD_PERF;
721 * Override the capabilities of the BOARD and specify SIMPLE
724 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
725 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
727 supported_methods = sc->ciss_cfg->supported_methods;
732 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
733 method = CISS_TRANSPORT_METHOD_PERF;
734 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
735 sc->ciss_cfg->transport_offset);
736 if (ciss_init_perf(sc)) {
737 supported_methods &= ~method;
740 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
741 method = CISS_TRANSPORT_METHOD_SIMPLE;
743 ciss_printf(sc, "No supported transport methods: 0x%x\n",
744 sc->ciss_cfg->supported_methods);
749 * Tell it we're using the low 4GB of RAM. Set the default interrupt
750 * coalescing options.
752 sc->ciss_cfg->requested_method = method;
753 sc->ciss_cfg->command_physlimit = 0;
754 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
755 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
758 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
761 if (ciss_update_config(sc)) {
762 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
763 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
766 if ((sc->ciss_cfg->active_method & method) == 0) {
767 supported_methods &= ~method;
768 if (supported_methods == 0) {
769 ciss_printf(sc, "adapter refuses to go into available transports "
770 "mode (0x%x, 0x%x)\n", supported_methods,
771 sc->ciss_cfg->active_method);
778 * Wait for the adapter to come ready.
780 if ((error = ciss_wait_adapter(sc)) != 0)
783 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
784 * interrupts have a rid of 0, this will be overridden if MSIX is used.
786 sc->ciss_irq_rid[0] = 0;
787 if (method == CISS_TRANSPORT_METHOD_PERF) {
788 ciss_printf(sc, "PERFORMANT Transport\n");
789 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
790 intr = ciss_perf_msi_intr;
792 intr = ciss_perf_intr;
794 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
795 * Unfortunately, there is no good way to know if this is a SAS
796 * controller. Hopefully enabling this bit universally will work OK.
797 * It seems to work fine for SA6i controllers.
799 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
802 ciss_printf(sc, "SIMPLE Transport\n");
803 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
804 if (ciss_force_interrupt == 2)
805 /* If this fails, we automatically revert to INTx */
807 sc->ciss_perf = NULL;
809 sc->ciss_interrupt_mask = sqmask;
813 * Turn off interrupts before we go routing anything.
815 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
818 * Allocate and set up our interrupt.
820 if ((sc->ciss_irq_resource =
821 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
822 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
823 ciss_printf(sc, "can't allocate interrupt\n");
827 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
828 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
830 ciss_printf(sc, "can't set up interrupt\n");
835 * Allocate the parent bus DMA tag appropriate for our PCI
838 * Note that "simple" adapters can only address within a 32-bit
841 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
842 1, 0, /* alignment, boundary */
843 BUS_SPACE_MAXADDR, /* lowaddr */
844 BUS_SPACE_MAXADDR, /* highaddr */
845 NULL, NULL, /* filter, filterarg */
846 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
847 BUS_SPACE_UNRESTRICTED, /* nsegments */
848 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
850 NULL, NULL, /* lockfunc, lockarg */
851 &sc->ciss_parent_dmat)) {
852 ciss_printf(sc, "can't allocate parent DMA tag\n");
857 * Create DMA tag for mapping buffers into adapter-addressable
860 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
861 1, 0, /* alignment, boundary */
862 BUS_SPACE_MAXADDR, /* lowaddr */
863 BUS_SPACE_MAXADDR, /* highaddr */
864 NULL, NULL, /* filter, filterarg */
865 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
866 CISS_MAX_SG_ELEMENTS, /* nsegments */
867 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
868 BUS_DMA_ALLOCNOW, /* flags */
869 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
870 &sc->ciss_buffer_dmat)) {
871 ciss_printf(sc, "can't allocate buffer DMA tag\n");
877 /************************************************************************
878 * Setup MSI/MSIX operation (Performant only)
879 * Four interrupts are available, but we only use 1 right now. If MSI-X
880 * isn't avaialble, try using MSI instead.
883 ciss_setup_msix(struct ciss_softc *sc)
887 /* Weed out devices that don't actually support MSI */
888 i = ciss_lookup(sc->ciss_dev);
889 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
893 * Only need to use the minimum number of MSI vectors, as the driver
894 * doesn't support directed MSIX interrupts.
896 val = pci_msix_count(sc->ciss_dev);
897 if (val < CISS_MSI_COUNT) {
898 val = pci_msi_count(sc->ciss_dev);
899 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
900 if (val < CISS_MSI_COUNT)
903 val = MIN(val, CISS_MSI_COUNT);
904 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
905 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
911 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
912 (val != 1) ? "s" : "");
914 for (i = 0; i < val; i++)
915 sc->ciss_irq_rid[i] = i + 1;
921 /************************************************************************
922 * Setup the Performant structures.
925 ciss_init_perf(struct ciss_softc *sc)
927 struct ciss_perf_config *pc = sc->ciss_perf;
931 * Create the DMA tag for the reply queue.
933 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
934 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
935 1, 0, /* alignment, boundary */
936 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
937 BUS_SPACE_MAXADDR, /* highaddr */
938 NULL, NULL, /* filter, filterarg */
939 reply_size, 1, /* maxsize, nsegments */
940 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
942 NULL, NULL, /* lockfunc, lockarg */
943 &sc->ciss_reply_dmat)) {
944 ciss_printf(sc, "can't allocate reply DMA tag\n");
948 * Allocate memory and make it available for DMA.
950 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
951 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
952 ciss_printf(sc, "can't allocate reply memory\n");
955 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
956 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
957 bzero(sc->ciss_reply, reply_size);
959 sc->ciss_cycle = 0x1;
963 * Preload the fetch table with common command sizes. This allows the
964 * hardware to not waste bus cycles for typical i/o commands, but also not
965 * tax the driver to be too exact in choosing sizes. The table is optimized
966 * for page-aligned i/o's, but since most i/o comes from the various pagers,
967 * it's a reasonable assumption to make.
969 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
970 pc->fetch_count[CISS_SG_FETCH_1] =
971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
972 pc->fetch_count[CISS_SG_FETCH_2] =
973 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
974 pc->fetch_count[CISS_SG_FETCH_4] =
975 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
976 pc->fetch_count[CISS_SG_FETCH_8] =
977 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
978 pc->fetch_count[CISS_SG_FETCH_16] =
979 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
980 pc->fetch_count[CISS_SG_FETCH_32] =
981 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
982 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
984 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
985 pc->rq_count = 1; /* XXX Hardcode for a single queue */
988 pc->rq[0].rq_addr_hi = 0x0;
989 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
994 /************************************************************************
995 * Wait for the adapter to come ready.
998 ciss_wait_adapter(struct ciss_softc *sc)
1005 * Wait for the adapter to come ready.
1007 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
1008 ciss_printf(sc, "waiting for adapter to come ready...\n");
1009 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1010 DELAY(1000000); /* one second */
1012 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1020 /************************************************************************
1021 * Flush the adapter cache.
1024 ciss_flush_adapter(struct ciss_softc *sc)
1026 struct ciss_request *cr;
1027 struct ciss_bmic_flush_cache *cbfc;
1028 int error, command_status;
1036 * Build a BMIC request to flush the cache. We don't disable
1037 * it, as we may be going to do more I/O (eg. we are emulating
1038 * the Synchronise Cache command).
1040 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1044 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1045 (void **)&cbfc, sizeof(*cbfc))) != 0)
1049 * Submit the request and wait for it to complete.
1051 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1052 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1059 ciss_report_request(cr, &command_status, NULL);
1060 switch(command_status) {
1061 case CISS_CMD_STATUS_SUCCESS:
1064 ciss_printf(sc, "error flushing cache (%s)\n",
1065 ciss_name_command_status(command_status));
1072 free(cbfc, CISS_MALLOC_CLASS);
1074 ciss_release_request(cr);
1079 ciss_soft_reset(struct ciss_softc *sc)
1081 struct ciss_request *cr = NULL;
1082 struct ciss_command *cc;
1085 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1086 /* only reset proxy controllers */
1087 if (sc->ciss_controllers[i].physical.bus == 0)
1090 if ((error = ciss_get_request(sc, &cr)) != 0)
1093 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1098 cc->header.address = sc->ciss_controllers[i];
1100 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1103 ciss_release_request(cr);
1107 ciss_printf(sc, "error resetting controller (%d)\n", error);
1110 ciss_release_request(cr);
1113 /************************************************************************
1114 * Allocate memory for the adapter command structures, initialise
1115 * the request structures.
1117 * Note that the entire set of commands are allocated in a single
1121 ciss_init_requests(struct ciss_softc *sc)
1123 struct ciss_request *cr;
1129 ciss_printf(sc, "using %d of %d available commands\n",
1130 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1133 * Create the DMA tag for commands.
1135 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1136 32, 0, /* alignment, boundary */
1137 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1138 BUS_SPACE_MAXADDR, /* highaddr */
1139 NULL, NULL, /* filter, filterarg */
1140 CISS_COMMAND_ALLOC_SIZE *
1141 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1142 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1144 NULL, NULL, /* lockfunc, lockarg */
1145 &sc->ciss_command_dmat)) {
1146 ciss_printf(sc, "can't allocate command DMA tag\n");
1150 * Allocate memory and make it available for DMA.
1152 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1153 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1154 ciss_printf(sc, "can't allocate command memory\n");
1157 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1158 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1159 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1160 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1163 * Set up the request and command structures, push requests onto
1166 for (i = 1; i < sc->ciss_max_requests; i++) {
1167 cr = &sc->ciss_request[i];
1170 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1171 CISS_COMMAND_ALLOC_SIZE * i);
1172 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1173 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1174 ciss_enqueue_free(cr);
1180 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1185 *addr = segs[0].ds_addr;
1188 /************************************************************************
1189 * Identify the adapter, print some information about it.
1192 ciss_identify_adapter(struct ciss_softc *sc)
1194 struct ciss_request *cr;
1195 int error, command_status;
1202 * Get a request, allocate storage for the adapter data.
1204 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1205 (void **)&sc->ciss_id,
1206 sizeof(*sc->ciss_id))) != 0)
1210 * Submit the request and wait for it to complete.
1212 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1213 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1220 ciss_report_request(cr, &command_status, NULL);
1221 switch(command_status) {
1222 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1224 case CISS_CMD_STATUS_DATA_UNDERRUN:
1225 case CISS_CMD_STATUS_DATA_OVERRUN:
1226 ciss_printf(sc, "data over/underrun reading adapter information\n");
1228 ciss_printf(sc, "error reading adapter information (%s)\n",
1229 ciss_name_command_status(command_status));
1234 /* sanity-check reply */
1235 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1236 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1242 /* XXX later revisions may not need this */
1243 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1246 /* XXX only really required for old 5300 adapters? */
1247 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1250 * Earlier controller specs do not contain these config
1251 * entries, so assume that a 0 means its old and assign
1252 * these values to the defaults that were established
1253 * when this driver was developed for them
1255 if (sc->ciss_cfg->max_logical_supported == 0)
1256 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1257 if (sc->ciss_cfg->max_physical_supported == 0)
1258 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1259 /* print information */
1261 ciss_printf(sc, " %d logical drive%s configured\n",
1262 sc->ciss_id->configured_logical_drives,
1263 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1264 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1265 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1267 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1268 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1269 ciss_printf(sc, " supported I/O methods 0x%b\n",
1270 sc->ciss_cfg->supported_methods,
1271 "\20\1READY\2simple\3performant\4MEMQ\n");
1272 ciss_printf(sc, " active I/O method 0x%b\n",
1273 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1274 ciss_printf(sc, " 4G page base 0x%08x\n",
1275 sc->ciss_cfg->command_physlimit);
1276 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1277 sc->ciss_cfg->interrupt_coalesce_delay);
1278 ciss_printf(sc, " interrupt coalesce count %d\n",
1279 sc->ciss_cfg->interrupt_coalesce_count);
1280 ciss_printf(sc, " max outstanding commands %d\n",
1281 sc->ciss_cfg->max_outstanding_commands);
1282 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1283 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1284 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1285 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1286 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1287 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1288 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1289 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1290 "Available" : "Unavailable");
1291 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1292 "Enabled" : "Disabled");
1297 if (sc->ciss_id != NULL) {
1298 free(sc->ciss_id, CISS_MALLOC_CLASS);
1303 ciss_release_request(cr);
1307 /************************************************************************
1308 * Helper routine for generating a list of logical and physical luns.
1310 static struct ciss_lun_report *
1311 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1313 struct ciss_request *cr;
1314 struct ciss_command *cc;
1315 struct ciss_report_cdb *crc;
1316 struct ciss_lun_report *cll;
1327 * Get a request, allocate storage for the address list.
1329 if ((error = ciss_get_request(sc, &cr)) != 0)
1331 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1332 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1333 ciss_printf(sc, "can't allocate memory for lun report\n");
1339 * Build the Report Logical/Physical LUNs command.
1343 cr->cr_length = report_size;
1344 cr->cr_flags = CISS_REQ_DATAIN;
1346 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1347 cc->header.address.physical.bus = 0;
1348 cc->header.address.physical.target = 0;
1349 cc->cdb.cdb_length = sizeof(*crc);
1350 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1351 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1352 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1353 cc->cdb.timeout = 30; /* XXX better suggestions? */
1355 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1356 bzero(crc, sizeof(*crc));
1357 crc->opcode = opcode;
1358 crc->length = htonl(report_size); /* big-endian field */
1359 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1362 * Submit the request and wait for it to complete. (timeout
1363 * here should be much greater than above)
1365 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1366 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1371 * Check response. Note that data over/underrun is OK.
1373 ciss_report_request(cr, &command_status, NULL);
1374 switch(command_status) {
1375 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1376 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1378 case CISS_CMD_STATUS_DATA_OVERRUN:
1379 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1380 sc->ciss_cfg->max_logical_supported);
1383 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1384 ciss_name_command_status(command_status));
1388 ciss_release_request(cr);
1393 ciss_release_request(cr);
1394 if (error && cll != NULL) {
1395 free(cll, CISS_MALLOC_CLASS);
1401 /************************************************************************
1402 * Find logical drives on the adapter.
1405 ciss_init_logical(struct ciss_softc *sc)
1407 struct ciss_lun_report *cll;
1408 int error = 0, i, j;
1413 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1414 sc->ciss_cfg->max_logical_supported);
1420 /* sanity-check reply */
1421 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1422 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1423 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1424 ndrives, sc->ciss_cfg->max_logical_supported);
1430 * Save logical drive information.
1433 ciss_printf(sc, "%d logical drive%s\n",
1434 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1438 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1439 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1440 if (sc->ciss_logical == NULL) {
1445 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1446 sc->ciss_logical[i] =
1447 malloc(sc->ciss_cfg->max_logical_supported *
1448 sizeof(struct ciss_ldrive),
1449 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1450 if (sc->ciss_logical[i] == NULL) {
1455 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1456 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1459 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1461 struct ciss_ldrive *ld;
1464 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1465 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1466 ld = &sc->ciss_logical[bus][target];
1468 ld->cl_address = cll->lun[i];
1469 ld->cl_controller = &sc->ciss_controllers[bus];
1470 if (ciss_identify_logical(sc, ld) != 0)
1473 * If the drive has had media exchanged, we should bring it online.
1475 if (ld->cl_lstatus->media_exchanged)
1476 ciss_accept_media(sc, ld);
1482 free(cll, CISS_MALLOC_CLASS);
1487 ciss_init_physical(struct ciss_softc *sc)
1489 struct ciss_lun_report *cll;
1499 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1500 sc->ciss_cfg->max_physical_supported);
1506 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1509 ciss_printf(sc, "%d physical device%s\n",
1510 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1514 * Figure out the bus mapping.
1515 * Logical buses include both the local logical bus for local arrays and
1516 * proxy buses for remote arrays. Physical buses are numbered by the
1517 * controller and represent physical buses that hold physical devices.
1518 * We shift these bus numbers so that everything fits into a single flat
1519 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1520 * numbers, and the physical bus numbers are shifted to be above that.
1521 * This results in the various driver arrays being indexed as follows:
1523 * ciss_controllers[] - indexed by logical bus
1524 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1525 * being shifted by 32.
1526 * ciss_logical[][] - indexed by logical bus
1527 * ciss_physical[][] - indexed by physical bus
1529 * XXX This is getting more and more hackish. CISS really doesn't play
1530 * well with a standard SCSI model; devices are addressed via magic
1531 * cookies, not via b/t/l addresses. Since there is no way to store
1532 * the cookie in the CAM device object, we have to keep these lookup
1533 * tables handy so that the devices can be found quickly at the cost
1534 * of wasting memory and having a convoluted lookup scheme. This
1535 * driver should probably be converted to block interface.
1538 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1539 * controller. A proxy controller is another physical controller
1540 * behind the primary PCI controller. We need to know about this
1541 * so that BMIC commands can be properly targeted. There can be
1542 * proxy controllers attached to a single PCI controller, so
1543 * find the highest numbered one so the array can be properly
1546 sc->ciss_max_logical_bus = 1;
1547 for (i = 0; i < nphys; i++) {
1548 if (cll->lun[i].physical.extra_address == 0) {
1549 bus = cll->lun[i].physical.bus;
1550 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1552 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1553 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1557 sc->ciss_controllers =
1558 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1559 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1561 if (sc->ciss_controllers == NULL) {
1562 ciss_printf(sc, "Could not allocate memory for controller map\n");
1567 /* setup a map of controller addresses */
1568 for (i = 0; i < nphys; i++) {
1569 if (cll->lun[i].physical.extra_address == 0) {
1570 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1575 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1576 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1577 if (sc->ciss_physical == NULL) {
1578 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1583 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1584 sc->ciss_physical[i] =
1585 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1586 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1587 if (sc->ciss_physical[i] == NULL) {
1588 ciss_printf(sc, "Could not allocate memory for target map\n");
1594 ciss_filter_physical(sc, cll);
1598 free(cll, CISS_MALLOC_CLASS);
1604 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1610 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1611 for (i = 0; i < nphys; i++) {
1612 if (cll->lun[i].physical.extra_address == 0)
1616 * Filter out devices that we don't want. Level 3 LUNs could
1617 * probably be supported, but the docs don't give enough of a
1620 * The mode field of the physical address is likely set to have
1621 * hard disks masked out. Honor it unless the user has overridden
1622 * us with the tunable. We also munge the inquiry data for these
1623 * disks so that they only show up as passthrough devices. Keeping
1624 * them visible in this fashion is useful for doing things like
1625 * flashing firmware.
1627 ea = cll->lun[i].physical.extra_address;
1628 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1629 (CISS_EXTRA_MODE2(ea) == 0x3))
1631 if ((ciss_expose_hidden_physical == 0) &&
1632 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1636 * Note: CISS firmware numbers physical busses starting at '1', not
1637 * '0'. This numbering is internal to the firmware and is only
1638 * used as a hint here.
1640 bus = CISS_EXTRA_BUS2(ea) - 1;
1641 target = CISS_EXTRA_TARGET2(ea);
1642 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1643 sc->ciss_physical[bus][target].cp_online = 1;
1650 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1652 struct ciss_request *cr;
1653 struct ciss_command *cc;
1654 struct scsi_inquiry *inq;
1660 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1662 if ((error = ciss_get_request(sc, &cr)) != 0)
1666 cr->cr_data = &ld->cl_geometry;
1667 cr->cr_length = sizeof(ld->cl_geometry);
1668 cr->cr_flags = CISS_REQ_DATAIN;
1670 cc->header.address = ld->cl_address;
1671 cc->cdb.cdb_length = 6;
1672 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1673 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1674 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1675 cc->cdb.timeout = 30;
1677 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1678 inq->opcode = INQUIRY;
1679 inq->byte2 = SI_EVPD;
1680 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1681 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1683 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1684 ciss_printf(sc, "error getting geometry (%d)\n", error);
1688 ciss_report_request(cr, &command_status, NULL);
1689 switch(command_status) {
1690 case CISS_CMD_STATUS_SUCCESS:
1691 case CISS_CMD_STATUS_DATA_UNDERRUN:
1693 case CISS_CMD_STATUS_DATA_OVERRUN:
1694 ciss_printf(sc, "WARNING: Data overrun\n");
1697 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1698 ciss_name_command_status(command_status));
1704 ciss_release_request(cr);
1707 /************************************************************************
1708 * Identify a logical drive, initialise state related to it.
1711 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1713 struct ciss_request *cr;
1714 struct ciss_command *cc;
1715 struct ciss_bmic_cdb *cbc;
1716 int error, command_status;
1723 * Build a BMIC request to fetch the drive ID.
1725 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1726 (void **)&ld->cl_ldrive,
1727 sizeof(*ld->cl_ldrive))) != 0)
1730 cc->header.address = *ld->cl_controller; /* target controller */
1731 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1732 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1735 * Submit the request and wait for it to complete.
1737 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1738 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1745 ciss_report_request(cr, &command_status, NULL);
1746 switch(command_status) {
1747 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1749 case CISS_CMD_STATUS_DATA_UNDERRUN:
1750 case CISS_CMD_STATUS_DATA_OVERRUN:
1751 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1753 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1754 ciss_name_command_status(command_status));
1758 ciss_release_request(cr);
1762 * Build a CISS BMIC command to get the logical drive status.
1764 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1768 * Get the logical drive geometry.
1770 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1774 * Print the drive's basic characteristics.
1777 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1778 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1779 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1780 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1781 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1782 ld->cl_ldrive->block_size));
1784 ciss_print_ldrive(sc, ld);
1788 /* make the drive not-exist */
1789 ld->cl_status = CISS_LD_NONEXISTENT;
1790 if (ld->cl_ldrive != NULL) {
1791 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1792 ld->cl_ldrive = NULL;
1794 if (ld->cl_lstatus != NULL) {
1795 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1796 ld->cl_lstatus = NULL;
1800 ciss_release_request(cr);
1805 /************************************************************************
1806 * Get status for a logical drive.
1808 * XXX should we also do this in response to Test Unit Ready?
1811 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1813 struct ciss_request *cr;
1814 struct ciss_command *cc;
1815 struct ciss_bmic_cdb *cbc;
1816 int error, command_status;
1819 * Build a CISS BMIC command to get the logical drive status.
1821 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1822 (void **)&ld->cl_lstatus,
1823 sizeof(*ld->cl_lstatus))) != 0)
1826 cc->header.address = *ld->cl_controller; /* target controller */
1827 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1828 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1831 * Submit the request and wait for it to complete.
1833 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1834 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1841 ciss_report_request(cr, &command_status, NULL);
1842 switch(command_status) {
1843 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1845 case CISS_CMD_STATUS_DATA_UNDERRUN:
1846 case CISS_CMD_STATUS_DATA_OVERRUN:
1847 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1849 ciss_printf(sc, "error reading logical drive status (%s)\n",
1850 ciss_name_command_status(command_status));
1856 * Set the drive's summary status based on the returned status.
1858 * XXX testing shows that a failed JBOD drive comes back at next
1859 * boot in "queued for expansion" mode. WTF?
1861 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1865 ciss_release_request(cr);
1869 /************************************************************************
1870 * Notify the adapter of a config update.
1873 ciss_update_config(struct ciss_softc *sc)
1879 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1880 for (i = 0; i < 1000; i++) {
1881 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1882 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1890 /************************************************************************
1891 * Accept new media into a logical drive.
1893 * XXX The drive has previously been offline; it would be good if we
1894 * could make sure it's not open right now.
1897 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1899 struct ciss_request *cr;
1900 struct ciss_command *cc;
1901 struct ciss_bmic_cdb *cbc;
1903 int error = 0, ldrive;
1905 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1907 debug(0, "bringing logical drive %d back online", ldrive);
1910 * Build a CISS BMIC command to bring the drive back online.
1912 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1916 cc->header.address = *ld->cl_controller; /* target controller */
1917 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1918 cbc->log_drive = ldrive;
1921 * Submit the request and wait for it to complete.
1923 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1924 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1931 ciss_report_request(cr, &command_status, NULL);
1932 switch(command_status) {
1933 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1934 /* we should get a logical drive status changed event here */
1937 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1938 ciss_name_command_status(command_status));
1944 ciss_release_request(cr);
1948 /************************************************************************
1949 * Release adapter resources.
1952 ciss_free(struct ciss_softc *sc)
1954 struct ciss_request *cr;
1959 /* we're going away */
1960 sc->ciss_flags |= CISS_FLAG_ABORTING;
1962 /* terminate the periodic heartbeat routine */
1963 callout_stop(&sc->ciss_periodic);
1965 /* cancel the Event Notify chain */
1966 ciss_notify_abort(sc);
1968 ciss_kill_notify_thread(sc);
1970 /* disconnect from CAM */
1971 if (sc->ciss_cam_sim) {
1972 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1973 if (sc->ciss_cam_sim[i]) {
1974 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1975 cam_sim_free(sc->ciss_cam_sim[i], 0);
1978 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1979 CISS_PHYSICAL_BASE; i++) {
1980 if (sc->ciss_cam_sim[i]) {
1981 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1982 cam_sim_free(sc->ciss_cam_sim[i], 0);
1985 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1987 if (sc->ciss_cam_devq)
1988 cam_simq_free(sc->ciss_cam_devq);
1990 /* remove the control device */
1991 mtx_unlock(&sc->ciss_mtx);
1992 if (sc->ciss_dev_t != NULL)
1993 destroy_dev(sc->ciss_dev_t);
1995 /* Final cleanup of the callout. */
1996 callout_drain(&sc->ciss_periodic);
1997 mtx_destroy(&sc->ciss_mtx);
1999 /* free the controller data */
2000 if (sc->ciss_id != NULL)
2001 free(sc->ciss_id, CISS_MALLOC_CLASS);
2003 /* release I/O resources */
2004 if (sc->ciss_regs_resource != NULL)
2005 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2006 sc->ciss_regs_rid, sc->ciss_regs_resource);
2007 if (sc->ciss_cfg_resource != NULL)
2008 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2009 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2010 if (sc->ciss_intr != NULL)
2011 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2012 if (sc->ciss_irq_resource != NULL)
2013 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2014 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2016 pci_release_msi(sc->ciss_dev);
2018 while ((cr = ciss_dequeue_free(sc)) != NULL)
2019 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2020 if (sc->ciss_buffer_dmat)
2021 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2023 /* destroy command memory and DMA tag */
2024 if (sc->ciss_command != NULL) {
2025 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2026 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2028 if (sc->ciss_command_dmat)
2029 bus_dma_tag_destroy(sc->ciss_command_dmat);
2031 if (sc->ciss_reply) {
2032 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2033 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2035 if (sc->ciss_reply_dmat)
2036 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2038 /* destroy DMA tags */
2039 if (sc->ciss_parent_dmat)
2040 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2041 if (sc->ciss_logical) {
2042 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2043 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2044 if (sc->ciss_logical[i][j].cl_ldrive)
2045 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2046 if (sc->ciss_logical[i][j].cl_lstatus)
2047 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2049 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2051 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2054 if (sc->ciss_physical) {
2055 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2056 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2057 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2060 if (sc->ciss_controllers)
2061 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2065 /************************************************************************
2066 * Give a command to the adapter.
2068 * Note that this uses the simple transport layer directly. If we
2069 * want to add support for other layers, we'll need a switch of some
2072 * Note that the simple transport layer has no way of refusing a
2073 * command; we only have as many request structures as the adapter
2074 * supports commands, so we don't have to check (this presumes that
2075 * the adapter can handle commands as fast as we throw them at it).
2078 ciss_start(struct ciss_request *cr)
2080 struct ciss_command *cc; /* XXX debugging only */
2084 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2087 * Map the request's data.
2089 if ((error = ciss_map_request(cr)))
2093 ciss_print_request(cr);
2099 /************************************************************************
2100 * Fetch completed request(s) from the adapter, queue them for
2101 * completion handling.
2103 * Note that this uses the simple transport layer directly. If we
2104 * want to add support for other layers, we'll need a switch of some
2107 * Note that the simple transport mechanism does not require any
2108 * reentrancy protection; the OPQ read is atomic. If there is a
2109 * chance of a race with something else that might move the request
2110 * off the busy list, then we will have to lock against that
2111 * (eg. timeouts, etc.)
2114 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2116 struct ciss_request *cr;
2117 struct ciss_command *cc;
2118 u_int32_t tag, index;
2123 * Loop quickly taking requests from the adapter and moving them
2124 * to the completed queue.
2127 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2128 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2131 debug(2, "completed command %d%s", index,
2132 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2133 if (index >= sc->ciss_max_requests) {
2134 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2137 cr = &(sc->ciss_request[index]);
2139 cc->header.host_tag = tag; /* not updated by adapter */
2140 ciss_enqueue_complete(cr, qh);
2146 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2148 struct ciss_request *cr;
2149 struct ciss_command *cc;
2150 u_int32_t tag, index;
2155 * Loop quickly taking requests from the adapter and moving them
2156 * to the completed queue.
2159 tag = sc->ciss_reply[sc->ciss_rqidx];
2160 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2163 debug(2, "completed command %d%s\n", index,
2164 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2165 if (index < sc->ciss_max_requests) {
2166 cr = &(sc->ciss_request[index]);
2168 cc->header.host_tag = tag; /* not updated by adapter */
2169 ciss_enqueue_complete(cr, qh);
2171 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2173 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2175 sc->ciss_cycle ^= 1;
2181 /************************************************************************
2182 * Take an interrupt from the adapter.
2185 ciss_intr(void *arg)
2188 struct ciss_softc *sc = (struct ciss_softc *)arg;
2191 * The only interrupt we recognise indicates that there are
2192 * entries in the outbound post queue.
2196 mtx_lock(&sc->ciss_mtx);
2197 ciss_complete(sc, &qh);
2198 mtx_unlock(&sc->ciss_mtx);
2202 ciss_perf_intr(void *arg)
2204 struct ciss_softc *sc = (struct ciss_softc *)arg;
2206 /* Clear the interrupt and flush the bridges. Docs say that the flush
2207 * needs to be done twice, which doesn't seem right.
2209 CISS_TL_PERF_CLEAR_INT(sc);
2210 CISS_TL_PERF_FLUSH_INT(sc);
2212 ciss_perf_msi_intr(sc);
2216 ciss_perf_msi_intr(void *arg)
2219 struct ciss_softc *sc = (struct ciss_softc *)arg;
2222 ciss_perf_done(sc, &qh);
2223 mtx_lock(&sc->ciss_mtx);
2224 ciss_complete(sc, &qh);
2225 mtx_unlock(&sc->ciss_mtx);
2228 /************************************************************************
2229 * Process completed requests.
2231 * Requests can be completed in three fashions:
2233 * - by invoking a callback function (cr_complete is non-null)
2234 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2235 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2238 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2240 struct ciss_request *cr;
2245 * Loop taking requests off the completed queue and performing
2246 * completion processing on them.
2249 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2251 ciss_unmap_request(cr);
2253 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2254 ciss_printf(sc, "WARNING: completing non-busy request\n");
2255 cr->cr_flags &= ~CISS_REQ_BUSY;
2258 * If the request has a callback, invoke it.
2260 if (cr->cr_complete != NULL) {
2261 cr->cr_complete(cr);
2266 * If someone is sleeping on this request, wake them up.
2268 if (cr->cr_flags & CISS_REQ_SLEEP) {
2269 cr->cr_flags &= ~CISS_REQ_SLEEP;
2275 * If someone is polling this request for completion, signal.
2277 if (cr->cr_flags & CISS_REQ_POLL) {
2278 cr->cr_flags &= ~CISS_REQ_POLL;
2283 * Give up and throw the request back on the free queue. This
2284 * should never happen; resources will probably be lost.
2286 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2287 ciss_enqueue_free(cr);
2291 /************************************************************************
2292 * Report on the completion status of a request, and pass back SCSI
2293 * and command status values.
2296 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2298 struct ciss_command *cc;
2299 struct ciss_error_info *ce;
2304 ce = (struct ciss_error_info *)&(cc->sg[0]);
2307 * We don't consider data under/overrun an error for the Report
2308 * Logical/Physical LUNs commands.
2310 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2311 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2312 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2313 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2314 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2315 (cc->cdb.cdb[0] == INQUIRY))) {
2316 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2317 debug(2, "ignoring irrelevant under/overrun error");
2321 * Check the command's error bit, if clear, there's no status and
2324 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2325 if (scsi_status != NULL)
2326 *scsi_status = SCSI_STATUS_OK;
2327 if (command_status != NULL)
2328 *command_status = CISS_CMD_STATUS_SUCCESS;
2331 if (command_status != NULL)
2332 *command_status = ce->command_status;
2333 if (scsi_status != NULL) {
2334 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2335 *scsi_status = ce->scsi_status;
2341 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2342 ce->command_status, ciss_name_command_status(ce->command_status),
2344 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2345 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2346 ce->additional_error_info.invalid_command.offense_size,
2347 ce->additional_error_info.invalid_command.offense_offset,
2348 ce->additional_error_info.invalid_command.offense_value,
2353 ciss_print_request(cr);
2358 /************************************************************************
2359 * Issue a request and don't return until it's completed.
2361 * Depending on adapter status, we may poll or sleep waiting for
2365 ciss_synch_request(struct ciss_request *cr, int timeout)
2367 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2368 return(ciss_wait_request(cr, timeout));
2370 return(ciss_poll_request(cr, timeout));
2374 /************************************************************************
2375 * Issue a request and poll for completion.
2377 * Timeout in milliseconds.
2380 ciss_poll_request(struct ciss_request *cr, int timeout)
2383 struct ciss_softc *sc;
2390 cr->cr_flags |= CISS_REQ_POLL;
2391 if ((error = ciss_start(cr)) != 0)
2396 ciss_perf_done(sc, &qh);
2399 ciss_complete(sc, &qh);
2400 if (!(cr->cr_flags & CISS_REQ_POLL))
2403 } while (timeout-- >= 0);
2404 return(EWOULDBLOCK);
2407 /************************************************************************
2408 * Issue a request and sleep waiting for completion.
2410 * Timeout in milliseconds. Note that a spurious wakeup will reset
2414 ciss_wait_request(struct ciss_request *cr, int timeout)
2420 cr->cr_flags |= CISS_REQ_SLEEP;
2421 if ((error = ciss_start(cr)) != 0)
2424 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2425 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2426 SBT_1MS * timeout, 0, 0);
2432 /************************************************************************
2433 * Abort a request. Note that a potential exists here to race the
2434 * request being completed; the caller must deal with this.
2437 ciss_abort_request(struct ciss_request *ar)
2439 struct ciss_request *cr;
2440 struct ciss_command *cc;
2441 struct ciss_message_cdb *cmc;
2447 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2450 /* build the abort command */
2452 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2453 cc->header.address.physical.target = 0;
2454 cc->header.address.physical.bus = 0;
2455 cc->cdb.cdb_length = sizeof(*cmc);
2456 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2457 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2458 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2459 cc->cdb.timeout = 30;
2461 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2462 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2463 cmc->type = CISS_MESSAGE_ABORT_TASK;
2464 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2467 * Send the request and wait for a response. If we believe we
2468 * aborted the request OK, clear the flag that indicates it's
2471 error = ciss_synch_request(cr, 35 * 1000);
2473 error = ciss_report_request(cr, NULL, NULL);
2474 ciss_release_request(cr);
2480 /************************************************************************
2481 * Fetch and initialise a request
2484 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2486 struct ciss_request *cr;
2491 * Get a request and clean it up.
2493 if ((cr = ciss_dequeue_free(sc)) == NULL)
2498 cr->cr_complete = NULL;
2499 cr->cr_private = NULL;
2500 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2502 ciss_preen_command(cr);
2508 ciss_preen_command(struct ciss_request *cr)
2510 struct ciss_command *cc;
2514 * Clean up the command structure.
2516 * Note that we set up the error_info structure here, since the
2517 * length can be overwritten by any command.
2520 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2521 cc->header.sg_total = 0;
2522 cc->header.host_tag = cr->cr_tag << 2;
2523 cc->header.host_tag_zeroes = 0;
2524 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2525 cmdphys = cr->cr_ccphys;
2526 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2527 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2530 /************************************************************************
2531 * Release a request to the free list.
2534 ciss_release_request(struct ciss_request *cr)
2536 struct ciss_softc *sc;
2542 /* release the request to the free queue */
2543 ciss_requeue_free(cr);
2546 /************************************************************************
2547 * Allocate a request that will be used to send a BMIC command. Do some
2548 * of the common setup here to avoid duplicating it everywhere else.
2551 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2552 int opcode, void **bufp, size_t bufsize)
2554 struct ciss_request *cr;
2555 struct ciss_command *cc;
2556 struct ciss_bmic_cdb *cbc;
2569 if ((error = ciss_get_request(sc, &cr)) != 0)
2573 * Allocate data storage if requested, determine the data direction.
2576 if ((bufsize > 0) && (bufp != NULL)) {
2577 if (*bufp == NULL) {
2578 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2584 dataout = 1; /* we are given a buffer, so we are writing */
2589 * Build a CISS BMIC command to get the logical drive ID.
2592 cr->cr_length = bufsize;
2594 cr->cr_flags = CISS_REQ_DATAIN;
2597 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2598 cc->header.address.physical.bus = 0;
2599 cc->header.address.physical.target = 0;
2600 cc->cdb.cdb_length = sizeof(*cbc);
2601 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2602 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2603 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2604 cc->cdb.timeout = 0;
2606 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2607 bzero(cbc, sizeof(*cbc));
2608 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2609 cbc->bmic_opcode = opcode;
2610 cbc->size = htons((u_int16_t)bufsize);
2615 ciss_release_request(cr);
2618 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2624 /************************************************************************
2625 * Handle a command passed in from userspace.
2628 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2630 struct ciss_request *cr;
2631 struct ciss_command *cc;
2632 struct ciss_error_info *ce;
2642 while (ciss_get_request(sc, &cr) != 0)
2643 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2647 * Allocate an in-kernel databuffer if required, copy in user data.
2649 mtx_unlock(&sc->ciss_mtx);
2650 cr->cr_length = ioc->buf_size;
2651 if (ioc->buf_size > 0) {
2652 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2656 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2657 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2663 * Build the request based on the user command.
2665 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2666 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2668 /* XXX anything else to populate here? */
2669 mtx_lock(&sc->ciss_mtx);
2674 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2675 debug(0, "request failed - %d", error);
2680 * Check to see if the command succeeded.
2682 ce = (struct ciss_error_info *)&(cc->sg[0]);
2683 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2684 bzero(ce, sizeof(*ce));
2687 * Copy the results back to the user.
2689 bcopy(ce, &ioc->error_info, sizeof(*ce));
2690 mtx_unlock(&sc->ciss_mtx);
2691 if ((ioc->buf_size > 0) &&
2692 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2693 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2701 mtx_lock(&sc->ciss_mtx);
2704 if ((cr != NULL) && (cr->cr_data != NULL))
2705 free(cr->cr_data, CISS_MALLOC_CLASS);
2707 ciss_release_request(cr);
2711 /************************************************************************
2712 * Map a request into bus-visible space, initialise the scatter/gather
2716 ciss_map_request(struct ciss_request *cr)
2718 struct ciss_softc *sc;
2725 /* check that mapping is necessary */
2726 if (cr->cr_flags & CISS_REQ_MAPPED)
2729 cr->cr_flags |= CISS_REQ_MAPPED;
2731 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2732 BUS_DMASYNC_PREWRITE);
2734 if (cr->cr_data != NULL) {
2735 if (cr->cr_flags & CISS_REQ_CCB)
2736 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2737 cr->cr_datamap, cr->cr_data,
2738 ciss_request_map_helper, cr, 0);
2740 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2741 cr->cr_data, cr->cr_length,
2742 ciss_request_map_helper, cr, 0);
2747 * Post the command to the adapter.
2749 cr->cr_sg_tag = CISS_SG_NONE;
2750 cr->cr_flags |= CISS_REQ_BUSY;
2752 CISS_TL_PERF_POST_CMD(sc, cr);
2754 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2761 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2763 struct ciss_command *cc;
2764 struct ciss_request *cr;
2765 struct ciss_softc *sc;
2770 cr = (struct ciss_request *)arg;
2774 for (i = 0; i < nseg; i++) {
2775 cc->sg[i].address = segs[i].ds_addr;
2776 cc->sg[i].length = segs[i].ds_len;
2777 cc->sg[i].extension = 0;
2779 /* we leave the s/g table entirely within the command */
2780 cc->header.sg_in_list = nseg;
2781 cc->header.sg_total = nseg;
2783 if (cr->cr_flags & CISS_REQ_DATAIN)
2784 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2785 if (cr->cr_flags & CISS_REQ_DATAOUT)
2786 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2789 cr->cr_sg_tag = CISS_SG_NONE;
2791 cr->cr_sg_tag = CISS_SG_1;
2793 cr->cr_sg_tag = CISS_SG_2;
2795 cr->cr_sg_tag = CISS_SG_4;
2797 cr->cr_sg_tag = CISS_SG_8;
2798 else if (nseg <= 16)
2799 cr->cr_sg_tag = CISS_SG_16;
2800 else if (nseg <= 32)
2801 cr->cr_sg_tag = CISS_SG_32;
2803 cr->cr_sg_tag = CISS_SG_MAX;
2806 * Post the command to the adapter.
2808 cr->cr_flags |= CISS_REQ_BUSY;
2810 CISS_TL_PERF_POST_CMD(sc, cr);
2812 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2815 /************************************************************************
2816 * Unmap a request from bus-visible space.
2819 ciss_unmap_request(struct ciss_request *cr)
2821 struct ciss_softc *sc;
2827 /* check that unmapping is necessary */
2828 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2831 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2832 BUS_DMASYNC_POSTWRITE);
2834 if (cr->cr_data == NULL)
2837 if (cr->cr_flags & CISS_REQ_DATAIN)
2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2839 if (cr->cr_flags & CISS_REQ_DATAOUT)
2840 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2842 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2844 cr->cr_flags &= ~CISS_REQ_MAPPED;
2847 /************************************************************************
2848 * Attach the driver to CAM.
2850 * We put all the logical drives on a single SCSI bus.
2853 ciss_cam_init(struct ciss_softc *sc)
2860 * Allocate a devq. We can reuse this for the masked physical
2861 * devices if we decide to export these as well.
2863 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2864 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2871 * This naturally wastes a bit of memory. The alternative is to allocate
2872 * and register each bus as it is found, and then track them on a linked
2873 * list. Unfortunately, the driver has a few places where it needs to
2874 * look up the SIM based solely on bus number, and it's unclear whether
2875 * a list traversal would work for these situations.
2877 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2878 CISS_PHYSICAL_BASE);
2879 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2880 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2881 if (sc->ciss_cam_sim == NULL) {
2882 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2886 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2887 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2889 device_get_unit(sc->ciss_dev),
2892 sc->ciss_max_requests - 2,
2893 sc->ciss_cam_devq)) == NULL) {
2894 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2899 * Register bus with this SIM.
2901 mtx_lock(&sc->ciss_mtx);
2902 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2903 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2904 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2905 mtx_unlock(&sc->ciss_mtx);
2909 mtx_unlock(&sc->ciss_mtx);
2912 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2913 CISS_PHYSICAL_BASE; i++) {
2914 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2916 device_get_unit(sc->ciss_dev),
2918 sc->ciss_max_requests - 2,
2919 sc->ciss_cam_devq)) == NULL) {
2920 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2924 mtx_lock(&sc->ciss_mtx);
2925 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2926 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2927 mtx_unlock(&sc->ciss_mtx);
2930 mtx_unlock(&sc->ciss_mtx);
2936 /************************************************************************
2937 * Initiate a rescan of the 'logical devices' SIM
2940 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2946 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2947 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2951 if (xpt_create_path(&ccb->ccb_h.path, NULL,
2952 cam_sim_path(sc->ciss_cam_sim[bus]),
2953 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2954 ciss_printf(sc, "rescan failed (can't create path)\n");
2959 /* scan is now in progress */
2962 /************************************************************************
2963 * Handle requests coming from CAM
2966 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2968 struct ciss_softc *sc;
2969 struct ccb_scsiio *csio;
2973 sc = cam_sim_softc(sim);
2974 bus = cam_sim_bus(sim);
2975 csio = (struct ccb_scsiio *)&ccb->csio;
2976 target = csio->ccb_h.target_id;
2977 physical = CISS_IS_PHYSICAL(bus);
2979 switch (ccb->ccb_h.func_code) {
2980 /* perform SCSI I/O */
2982 if (!ciss_cam_action_io(sim, csio))
2986 /* perform geometry calculations */
2987 case XPT_CALC_GEOMETRY:
2989 struct ccb_calc_geometry *ccg = &ccb->ccg;
2990 struct ciss_ldrive *ld;
2992 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2996 ld = &sc->ciss_logical[bus][target];
2999 * Use the cached geometry settings unless the fault tolerance
3002 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3003 u_int32_t secs_per_cylinder;
3006 ccg->secs_per_track = 32;
3007 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3008 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3010 ccg->heads = ld->cl_geometry.heads;
3011 ccg->secs_per_track = ld->cl_geometry.sectors;
3012 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3014 ccb->ccb_h.status = CAM_REQ_CMP;
3018 /* handle path attribute inquiry */
3021 struct ccb_pathinq *cpi = &ccb->cpi;
3024 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3026 cpi->version_num = 1;
3027 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3028 cpi->target_sprt = 0;
3030 cpi->max_target = sc->ciss_cfg->max_logical_supported;
3031 cpi->max_lun = 0; /* 'logical drive' channel only */
3032 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3033 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3034 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN);
3035 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3036 cpi->unit_number = cam_sim_unit(sim);
3037 cpi->bus_id = cam_sim_bus(sim);
3038 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3039 cpi->transport = XPORT_SPI;
3040 cpi->transport_version = 2;
3041 cpi->protocol = PROTO_SCSI;
3042 cpi->protocol_version = SCSI_REV_2;
3043 if (sc->ciss_cfg->max_sg_length == 0) {
3046 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3047 * Confusing bit here. max_sg_length is usually a power of 2. We always
3048 * need to subtract 1 to account for partial pages. Then we need to
3049 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3050 * Add 1 so we can then subtract it out in the assignment to maxio.
3051 * The reason for all these shenanigans is to create a maxio value that
3052 * creates IO operations to volumes that yield consistent operations
3053 * with good performance.
3055 sg_length = sc->ciss_cfg->max_sg_length - 1;
3056 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3058 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3059 ccb->ccb_h.status = CAM_REQ_CMP;
3063 case XPT_GET_TRAN_SETTINGS:
3065 struct ccb_trans_settings *cts = &ccb->cts;
3067 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3068 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3070 bus = cam_sim_bus(sim);
3071 target = cts->ccb_h.target_id;
3073 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3074 /* disconnect always OK */
3075 cts->protocol = PROTO_SCSI;
3076 cts->protocol_version = SCSI_REV_2;
3077 cts->transport = XPORT_SPI;
3078 cts->transport_version = 2;
3080 spi->valid = CTS_SPI_VALID_DISC;
3081 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3083 scsi->valid = CTS_SCSI_VALID_TQ;
3084 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3086 cts->ccb_h.status = CAM_REQ_CMP;
3090 default: /* we can't do this */
3091 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3092 ccb->ccb_h.status = CAM_REQ_INVALID;
3099 /************************************************************************
3100 * Handle a CAM SCSI I/O request.
3103 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3105 struct ciss_softc *sc;
3107 struct ciss_request *cr;
3108 struct ciss_command *cc;
3111 sc = cam_sim_softc(sim);
3112 bus = cam_sim_bus(sim);
3113 target = csio->ccb_h.target_id;
3115 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3117 /* check that the CDB pointer is not to a physical address */
3118 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3119 debug(3, " CDB pointer is to physical address");
3120 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3123 /* abandon aborted ccbs or those that have failed validation */
3124 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3125 debug(3, "abandoning CCB due to abort/validation failure");
3129 /* handle emulation of some SCSI commands ourself */
3130 if (ciss_cam_emulate(sc, csio))
3134 * Get a request to manage this command. If we can't, return the
3135 * ccb, freeze the queue and flag so that we unfreeze it when a
3136 * request completes.
3138 if ((error = ciss_get_request(sc, &cr)) != 0) {
3139 xpt_freeze_simq(sim, 1);
3140 sc->ciss_flags |= CISS_FLAG_BUSY;
3141 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3146 * Build the command.
3150 cr->cr_length = csio->dxfer_len;
3151 cr->cr_complete = ciss_cam_complete;
3152 cr->cr_private = csio;
3155 * Target the right logical volume.
3157 if (CISS_IS_PHYSICAL(bus))
3158 cc->header.address =
3159 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3161 cc->header.address =
3162 sc->ciss_logical[bus][target].cl_address;
3163 cc->cdb.cdb_length = csio->cdb_len;
3164 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3165 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3166 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3167 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3168 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3169 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3170 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3171 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3175 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3177 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3178 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3179 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3181 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3185 * Submit the request to the adapter.
3187 * Note that this may fail if we're unable to map the request (and
3188 * if we ever learn a transport layer other than simple, may fail
3189 * if the adapter rejects the command).
3191 if ((error = ciss_start(cr)) != 0) {
3192 xpt_freeze_simq(sim, 1);
3193 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3194 if (error == EINPROGRESS) {
3197 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3198 ciss_release_request(cr);
3206 /************************************************************************
3207 * Emulate SCSI commands the adapter doesn't handle as we might like.
3210 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3215 target = csio->ccb_h.target_id;
3216 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3217 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3218 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3220 if (CISS_IS_PHYSICAL(bus)) {
3221 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3222 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3223 xpt_done((union ccb *)csio);
3230 * Handle requests for volumes that don't exist or are not online.
3231 * A selection timeout is slightly better than an illegal request.
3232 * Other errors might be better.
3234 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3235 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3236 xpt_done((union ccb *)csio);
3240 /* if we have to fake Synchronise Cache */
3241 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3243 * If this is a Synchronise Cache command, typically issued when
3244 * a device is closed, flush the adapter and complete now.
3246 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3247 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3248 ciss_flush_adapter(sc);
3249 csio->ccb_h.status |= CAM_REQ_CMP;
3250 xpt_done((union ccb *)csio);
3256 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3257 * at least one LUN field to be pre created for us, so snag it and fill in
3258 * the least significant byte indicating 1 LUN here. Emulate the command
3259 * return to shut up warning on console of a CDB error. swb
3261 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3262 csio->data_ptr[3] = 8;
3263 csio->ccb_h.status |= CAM_REQ_CMP;
3264 xpt_done((union ccb *)csio);
3271 /************************************************************************
3272 * Check for possibly-completed commands.
3275 ciss_cam_poll(struct cam_sim *sim)
3278 struct ciss_softc *sc = cam_sim_softc(sim);
3284 ciss_perf_done(sc, &qh);
3287 ciss_complete(sc, &qh);
3290 /************************************************************************
3291 * Handle completion of a command - pass results back through the CCB
3294 ciss_cam_complete(struct ciss_request *cr)
3296 struct ciss_softc *sc;
3297 struct ciss_command *cc;
3298 struct ciss_error_info *ce;
3299 struct ccb_scsiio *csio;
3307 ce = (struct ciss_error_info *)&(cc->sg[0]);
3308 csio = (struct ccb_scsiio *)cr->cr_private;
3311 * Extract status values from request.
3313 ciss_report_request(cr, &command_status, &scsi_status);
3314 csio->scsi_status = scsi_status;
3317 * Handle specific SCSI status values.
3319 switch(scsi_status) {
3320 /* no status due to adapter error */
3322 debug(0, "adapter error");
3323 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3326 /* no status due to command completed OK */
3327 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3328 debug(2, "SCSI_STATUS_OK");
3329 csio->ccb_h.status |= CAM_REQ_CMP;
3332 /* check condition, sense data included */
3333 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3334 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3335 ce->sense_length, ce->residual_count);
3336 bzero(&csio->sense_data, SSD_FULL_SIZE);
3337 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3338 if (csio->sense_len > ce->sense_length)
3339 csio->sense_resid = csio->sense_len - ce->sense_length;
3341 csio->sense_resid = 0;
3342 csio->resid = ce->residual_count;
3343 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3346 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3347 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3348 csio->sense_resid, /*show_errors*/ 1));
3353 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3354 debug(0, "SCSI_STATUS_BUSY");
3355 csio->ccb_h.status |= CAM_SCSI_BUSY;
3359 debug(0, "unknown status 0x%x", csio->scsi_status);
3360 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3364 /* handle post-command fixup */
3365 ciss_cam_complete_fixup(sc, csio);
3367 ciss_release_request(cr);
3368 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3369 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3370 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3371 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3373 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3375 xpt_done((union ccb *)csio);
3378 /********************************************************************************
3379 * Fix up the result of some commands here.
3382 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3384 struct scsi_inquiry_data *inq;
3385 struct ciss_ldrive *cl;
3389 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3390 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3391 if (cdb[0] == INQUIRY &&
3392 (cdb[1] & SI_EVPD) == 0 &&
3393 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3394 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3395 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3396 target = csio->ccb_h.target_id;
3397 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3400 * If the controller is in JBOD mode, there are no logical volumes.
3401 * Let the disks be probed and dealt with via CAM. Else, mask off
3402 * the physical disks and setup the parts of the inq structure for
3403 * the logical volume. swb
3405 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3406 if (CISS_IS_PHYSICAL(bus)) {
3407 if (SID_TYPE(inq) == T_DIRECT)
3408 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3411 cl = &sc->ciss_logical[bus][target];
3413 padstr(inq->vendor, "HP",
3415 padstr(inq->product,
3416 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3418 padstr(inq->revision,
3419 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;
3561 for (i = 1; i < sc->ciss_max_requests; i++) {
3562 cr = &sc->ciss_request[i];
3563 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3567 ce = (struct ciss_error_info *)&(cc->sg[0]);
3568 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3569 ciss_enqueue_complete(cr, &qh);
3573 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3577 * If the request has a callback, invoke it.
3579 if (cr->cr_complete != NULL) {
3580 cr->cr_complete(cr);
3585 * If someone is sleeping on this request, wake them up.
3587 if (cr->cr_flags & CISS_REQ_SLEEP) {
3588 cr->cr_flags &= ~CISS_REQ_SLEEP;
3595 /************************************************************************
3596 * Request a notification response from the adapter.
3598 * If (cr) is NULL, this is the first request of the adapter, so
3599 * reset the adapter's message pointer and start with the oldest
3600 * message available.
3603 ciss_notify_event(struct ciss_softc *sc)
3605 struct ciss_request *cr;
3606 struct ciss_command *cc;
3607 struct ciss_notify_cdb *cnc;
3612 cr = sc->ciss_periodic_notify;
3614 /* get a request if we don't already have one */
3616 if ((error = ciss_get_request(sc, &cr)) != 0) {
3617 debug(0, "can't get notify event request");
3620 sc->ciss_periodic_notify = cr;
3621 cr->cr_complete = ciss_notify_complete;
3622 debug(1, "acquired request %d", cr->cr_tag);
3626 * Get a databuffer if we don't already have one, note that the
3627 * adapter command wants a larger buffer than the actual
3630 if (cr->cr_data == NULL) {
3631 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3632 debug(0, "can't get notify event request buffer");
3636 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3639 /* re-setup the request's command (since we never release it) XXX overkill*/
3640 ciss_preen_command(cr);
3642 /* (re)build the notify event command */
3644 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3645 cc->header.address.physical.bus = 0;
3646 cc->header.address.physical.target = 0;
3648 cc->cdb.cdb_length = sizeof(*cnc);
3649 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3650 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3651 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3652 cc->cdb.timeout = 0; /* no timeout, we hope */
3654 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3655 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3656 cnc->opcode = CISS_OPCODE_READ;
3657 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3658 cnc->timeout = 0; /* no timeout, we hope */
3659 cnc->synchronous = 0;
3661 cnc->seek_to_oldest = 0;
3662 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3666 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3668 /* submit the request */
3669 error = ciss_start(cr);
3674 if (cr->cr_data != NULL)
3675 free(cr->cr_data, CISS_MALLOC_CLASS);
3676 ciss_release_request(cr);
3678 sc->ciss_periodic_notify = NULL;
3679 debug(0, "can't submit notify event request");
3680 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3682 debug(1, "notify event submitted");
3683 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3688 ciss_notify_complete(struct ciss_request *cr)
3690 struct ciss_command *cc;
3691 struct ciss_notify *cn;
3692 struct ciss_softc *sc;
3698 cn = (struct ciss_notify *)cr->cr_data;
3702 * Report request results, decode status.
3704 ciss_report_request(cr, &command_status, &scsi_status);
3707 * Abort the chain on a fatal error.
3709 * XXX which of these are actually errors?
3711 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3712 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3713 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3714 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3715 ciss_name_command_status(command_status));
3716 ciss_release_request(cr);
3717 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3722 * If the adapter gave us a text message, print it.
3724 if (cn->message[0] != 0)
3725 ciss_printf(sc, "*** %.80s\n", cn->message);
3727 debug(0, "notify event class %d subclass %d detail %d",
3728 cn->class, cn->subclass, cn->detail);
3731 * If the response indicates that the notifier has been aborted,
3732 * release the notifier command.
3734 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3735 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3736 (cn->detail == 1)) {
3737 debug(0, "notifier exiting");
3738 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3739 ciss_release_request(cr);
3740 sc->ciss_periodic_notify = NULL;
3741 wakeup(&sc->ciss_periodic_notify);
3743 /* Handle notify events in a kernel thread */
3744 ciss_enqueue_notify(cr);
3745 sc->ciss_periodic_notify = NULL;
3746 wakeup(&sc->ciss_periodic_notify);
3747 wakeup(&sc->ciss_notify);
3750 * Send a new notify event command, if we're not aborting.
3752 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3753 ciss_notify_event(sc);
3757 /************************************************************************
3758 * Abort the Notify Event chain.
3760 * Note that we can't just abort the command in progress; we have to
3761 * explicitly issue an Abort Notify Event command in order for the
3762 * adapter to clean up correctly.
3764 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3765 * the chain will not restart itself.
3768 ciss_notify_abort(struct ciss_softc *sc)
3770 struct ciss_request *cr;
3771 struct ciss_command *cc;
3772 struct ciss_notify_cdb *cnc;
3773 int error, command_status, scsi_status;
3780 /* verify that there's an outstanding command */
3781 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3784 /* get a command to issue the abort with */
3785 if ((error = ciss_get_request(sc, &cr)))
3788 /* get a buffer for the result */
3789 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3790 debug(0, "can't get notify event request buffer");
3794 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3798 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3799 cc->header.address.physical.bus = 0;
3800 cc->header.address.physical.target = 0;
3801 cc->cdb.cdb_length = sizeof(*cnc);
3802 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3803 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3804 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3805 cc->cdb.timeout = 0; /* no timeout, we hope */
3807 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3808 bzero(cnc, sizeof(*cnc));
3809 cnc->opcode = CISS_OPCODE_WRITE;
3810 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3811 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3813 ciss_print_request(cr);
3817 * Submit the request and wait for it to complete.
3819 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3820 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3827 ciss_report_request(cr, &command_status, &scsi_status);
3828 switch(command_status) {
3829 case CISS_CMD_STATUS_SUCCESS:
3831 case CISS_CMD_STATUS_INVALID_COMMAND:
3833 * Some older adapters don't support the CISS version of this
3834 * command. Fall back to using the BMIC version.
3836 error = ciss_notify_abort_bmic(sc);
3841 case CISS_CMD_STATUS_TARGET_STATUS:
3843 * This can happen if the adapter thinks there wasn't an outstanding
3844 * Notify Event command but we did. We clean up here.
3846 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3847 if (sc->ciss_periodic_notify != NULL)
3848 ciss_release_request(sc->ciss_periodic_notify);
3855 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3856 ciss_name_command_status(command_status));
3862 * Sleep waiting for the notifier command to complete. Note
3863 * that if it doesn't, we may end up in a bad situation, since
3864 * the adapter may deliver it later. Also note that the adapter
3865 * requires the Notify Event command to be cancelled in order to
3866 * maintain internal bookkeeping.
3868 while (sc->ciss_periodic_notify != NULL) {
3869 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3870 if (error == EWOULDBLOCK) {
3871 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3877 /* release the cancel request */
3879 if (cr->cr_data != NULL)
3880 free(cr->cr_data, CISS_MALLOC_CLASS);
3881 ciss_release_request(cr);
3884 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3888 /************************************************************************
3889 * Abort the Notify Event chain using a BMIC command.
3892 ciss_notify_abort_bmic(struct ciss_softc *sc)
3894 struct ciss_request *cr;
3895 int error, command_status;
3902 /* verify that there's an outstanding command */
3903 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3907 * Build a BMIC command to cancel the Notify on Event command.
3909 * Note that we are sending a CISS opcode here. Odd.
3911 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3916 * Submit the request and wait for it to complete.
3918 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3919 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3926 ciss_report_request(cr, &command_status, NULL);
3927 switch(command_status) {
3928 case CISS_CMD_STATUS_SUCCESS:
3931 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3932 ciss_name_command_status(command_status));
3939 ciss_release_request(cr);
3943 /************************************************************************
3944 * Handle rescanning all the logical volumes when a notify event
3945 * causes the drives to come online or offline.
3948 ciss_notify_rescan_logical(struct ciss_softc *sc)
3950 struct ciss_lun_report *cll;
3951 struct ciss_ldrive *ld;
3955 * We must rescan all logical volumes to get the right logical
3958 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3959 sc->ciss_cfg->max_logical_supported);
3963 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3966 * Delete any of the drives which were destroyed by the
3969 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3970 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3971 ld = &sc->ciss_logical[i][j];
3973 if (ld->cl_update == 0)
3976 if (ld->cl_status != CISS_LD_ONLINE) {
3977 ciss_cam_rescan_target(sc, i, j);
3980 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3982 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3984 ld->cl_ldrive = NULL;
3985 ld->cl_lstatus = NULL;
3991 * Scan for new drives.
3993 for (i = 0; i < ndrives; i++) {
3996 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3997 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3998 ld = &sc->ciss_logical[bus][target];
4000 if (ld->cl_update == 0)
4004 ld->cl_address = cll->lun[i];
4005 ld->cl_controller = &sc->ciss_controllers[bus];
4006 if (ciss_identify_logical(sc, ld) == 0) {
4007 ciss_cam_rescan_target(sc, bus, target);
4010 free(cll, CISS_MALLOC_CLASS);
4013 /************************************************************************
4014 * Handle a notify event relating to the status of a logical drive.
4016 * XXX need to be able to defer some of these to properly handle
4017 * calling the "ID Physical drive" command, unless the 'extended'
4018 * drive IDs are always in BIG_MAP format.
4021 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4023 struct ciss_ldrive *ld;
4024 int ostatus, bus, target;
4028 bus = cn->device.physical.bus;
4029 target = cn->data.logical_status.logical_drive;
4030 ld = &sc->ciss_logical[bus][target];
4032 switch (cn->subclass) {
4033 case CISS_NOTIFY_LOGICAL_STATUS:
4034 switch (cn->detail) {
4036 ciss_name_device(sc, bus, target);
4037 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4038 cn->data.logical_status.logical_drive, ld->cl_name,
4039 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4040 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4041 cn->data.logical_status.spare_state,
4042 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4045 * Update our idea of the drive's status.
4047 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4048 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4049 if (ld->cl_lstatus != NULL)
4050 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4053 * Have CAM rescan the drive if its status has changed.
4055 if (ostatus != ld->cl_status) {
4057 ciss_notify_rescan_logical(sc);
4062 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4063 ciss_name_device(sc, bus, target);
4064 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4065 cn->data.logical_status.logical_drive, ld->cl_name);
4066 ciss_accept_media(sc, ld);
4069 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4070 ciss_notify_rescan_logical(sc);
4075 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4076 cn->data.rebuild_aborted.logical_drive,
4078 (cn->detail == 2) ? "read" : "write");
4083 case CISS_NOTIFY_LOGICAL_ERROR:
4084 if (cn->detail == 0) {
4085 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4086 cn->data.io_error.logical_drive,
4088 cn->data.io_error.failure_bus,
4089 cn->data.io_error.failure_drive);
4090 /* XXX should we take the drive down at this point, or will we be told? */
4094 case CISS_NOTIFY_LOGICAL_SURFACE:
4095 if (cn->detail == 0)
4096 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4097 cn->data.consistency_completed.logical_drive,
4103 /************************************************************************
4104 * Handle a notify event relating to the status of a physical drive.
4107 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4111 /************************************************************************
4112 * Handle a notify event relating to the status of a physical drive.
4115 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4117 struct ciss_lun_report *cll = NULL;
4120 switch (cn->subclass) {
4121 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4122 case CISS_NOTIFY_HOTPLUG_NONDISK:
4123 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4125 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4127 if (cn->detail == 0) {
4129 * Mark the device offline so that it'll start producing selection
4130 * timeouts to the upper layer.
4132 if ((bus >= 0) && (target >= 0))
4133 sc->ciss_physical[bus][target].cp_online = 0;
4136 * Rescan the physical lun list for new items
4138 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4139 sc->ciss_cfg->max_physical_supported);
4141 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4144 ciss_filter_physical(sc, cll);
4149 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4154 free(cll, CISS_MALLOC_CLASS);
4157 /************************************************************************
4158 * Handle deferred processing of notify events. Notify events may need
4159 * sleep which is unsafe during an interrupt.
4162 ciss_notify_thread(void *arg)
4164 struct ciss_softc *sc;
4165 struct ciss_request *cr;
4166 struct ciss_notify *cn;
4168 sc = (struct ciss_softc *)arg;
4169 mtx_lock(&sc->ciss_mtx);
4172 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4173 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4174 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4177 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4180 cr = ciss_dequeue_notify(sc);
4184 cn = (struct ciss_notify *)cr->cr_data;
4186 switch (cn->class) {
4187 case CISS_NOTIFY_HOTPLUG:
4188 ciss_notify_hotplug(sc, cn);
4190 case CISS_NOTIFY_LOGICAL:
4191 ciss_notify_logical(sc, cn);
4193 case CISS_NOTIFY_PHYSICAL:
4194 ciss_notify_physical(sc, cn);
4198 ciss_release_request(cr);
4200 sc->ciss_notify_thread = NULL;
4201 wakeup(&sc->ciss_notify_thread);
4203 mtx_unlock(&sc->ciss_mtx);
4207 /************************************************************************
4208 * Start the notification kernel thread.
4211 ciss_spawn_notify_thread(struct ciss_softc *sc)
4214 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4215 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4216 device_get_unit(sc->ciss_dev)))
4217 panic("Could not create notify thread\n");
4220 /************************************************************************
4221 * Kill the notification kernel thread.
4224 ciss_kill_notify_thread(struct ciss_softc *sc)
4227 if (sc->ciss_notify_thread == NULL)
4230 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4231 wakeup(&sc->ciss_notify);
4232 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4235 /************************************************************************
4240 ciss_print_request(struct ciss_request *cr)
4242 struct ciss_softc *sc;
4243 struct ciss_command *cc;
4249 ciss_printf(sc, "REQUEST @ %p\n", cr);
4250 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4251 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4252 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4253 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4254 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4255 switch(cc->header.address.mode.mode) {
4256 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4257 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4258 ciss_printf(sc, " physical bus %d target %d\n",
4259 cc->header.address.physical.bus, cc->header.address.physical.target);
4261 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4262 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4265 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4266 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4267 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4268 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4270 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4271 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4273 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4274 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4275 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4276 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4277 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4279 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4280 /* XXX print error info */
4282 /* since we don't use chained s/g, don't support it here */
4283 for (i = 0; i < cc->header.sg_in_list; i++) {
4285 ciss_printf(sc, " ");
4286 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4287 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4294 /************************************************************************
4295 * Print information about the status of a logical drive.
4298 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4302 if (ld->cl_lstatus == NULL) {
4303 printf("does not exist\n");
4307 /* print drive status */
4308 switch(ld->cl_lstatus->status) {
4309 case CISS_LSTATUS_OK:
4312 case CISS_LSTATUS_INTERIM_RECOVERY:
4313 printf("in interim recovery mode\n");
4315 case CISS_LSTATUS_READY_RECOVERY:
4316 printf("ready to begin recovery\n");
4318 case CISS_LSTATUS_RECOVERING:
4319 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4320 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4321 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4322 bus, target, ld->cl_lstatus->blocks_to_recover);
4324 case CISS_LSTATUS_EXPANDING:
4325 printf("being expanded, %u blocks remaining\n",
4326 ld->cl_lstatus->blocks_to_recover);
4328 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4329 printf("queued for expansion\n");
4331 case CISS_LSTATUS_FAILED:
4332 printf("queued for expansion\n");
4334 case CISS_LSTATUS_WRONG_PDRIVE:
4335 printf("wrong physical drive inserted\n");
4337 case CISS_LSTATUS_MISSING_PDRIVE:
4338 printf("missing a needed physical drive\n");
4340 case CISS_LSTATUS_BECOMING_READY:
4341 printf("becoming ready\n");
4345 /* print failed physical drives */
4346 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4347 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4348 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4351 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4352 ld->cl_lstatus->drive_failure_map[i]);
4357 #include <ddb/ddb.h>
4358 /************************************************************************
4359 * Print information about the controller/driver.
4362 ciss_print_adapter(struct ciss_softc *sc)
4366 ciss_printf(sc, "ADAPTER:\n");
4367 for (i = 0; i < CISSQ_COUNT; i++) {
4368 ciss_printf(sc, "%s %d/%d\n",
4370 i == 1 ? "busy" : "complete",
4371 sc->ciss_qstat[i].q_length,
4372 sc->ciss_qstat[i].q_max);
4374 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4375 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4376 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4378 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4379 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4380 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4381 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4385 /* XXX Should physical drives be printed out here? */
4387 for (i = 1; i < sc->ciss_max_requests; i++)
4388 ciss_print_request(sc->ciss_request + i);
4392 DB_COMMAND(ciss_prt, db_ciss_prt)
4394 struct ciss_softc *sc;
4398 dc = devclass_find("ciss");
4400 printf("%s: can't find devclass!\n", __func__);
4403 maxciss = devclass_get_maxunit(dc);
4404 for (i = 0; i < maxciss; i++) {
4405 sc = devclass_get_softc(dc, i);
4406 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);
4472 /************************************************************************
4473 * Return a name for a logical drive's organisation.
4476 ciss_name_ldrive_org(int org)
4479 case CISS_LDRIVE_RAID0:
4481 case CISS_LDRIVE_RAID1:
4482 return("RAID 1(1+0)");
4483 case CISS_LDRIVE_RAID4:
4485 case CISS_LDRIVE_RAID5:
4487 case CISS_LDRIVE_RAID51:
4489 case CISS_LDRIVE_RAIDADG:
4495 /************************************************************************
4496 * Return a name for a command status value.
4499 ciss_name_command_status(int status)
4502 case CISS_CMD_STATUS_SUCCESS:
4504 case CISS_CMD_STATUS_TARGET_STATUS:
4505 return("target status");
4506 case CISS_CMD_STATUS_DATA_UNDERRUN:
4507 return("data underrun");
4508 case CISS_CMD_STATUS_DATA_OVERRUN:
4509 return("data overrun");
4510 case CISS_CMD_STATUS_INVALID_COMMAND:
4511 return("invalid command");
4512 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4513 return("protocol error");
4514 case CISS_CMD_STATUS_HARDWARE_ERROR:
4515 return("hardware error");
4516 case CISS_CMD_STATUS_CONNECTION_LOST:
4517 return("connection lost");
4518 case CISS_CMD_STATUS_ABORTED:
4520 case CISS_CMD_STATUS_ABORT_FAILED:
4521 return("abort failed");
4522 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4523 return("unsolicited abort");
4524 case CISS_CMD_STATUS_TIMEOUT:
4526 case CISS_CMD_STATUS_UNABORTABLE:
4527 return("unabortable");
4529 return("unknown status");
4532 /************************************************************************
4533 * Handle an open on the control device.
4536 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4538 struct ciss_softc *sc;
4542 sc = (struct ciss_softc *)dev->si_drv1;
4544 /* we might want to veto if someone already has us open */
4546 mtx_lock(&sc->ciss_mtx);
4547 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4548 mtx_unlock(&sc->ciss_mtx);
4552 /************************************************************************
4553 * Handle the last close on the control device.
4556 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4558 struct ciss_softc *sc;
4562 sc = (struct ciss_softc *)dev->si_drv1;
4564 mtx_lock(&sc->ciss_mtx);
4565 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4566 mtx_unlock(&sc->ciss_mtx);
4570 /********************************************************************************
4571 * Handle adapter-specific control operations.
4573 * Note that the API here is compatible with the Linux driver, in order to
4574 * simplify the porting of Compaq's userland tools.
4577 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4579 struct ciss_softc *sc;
4580 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4582 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4583 IOCTL_Command_struct ioc_swab;
4589 sc = (struct ciss_softc *)dev->si_drv1;
4591 mtx_lock(&sc->ciss_mtx);
4594 case CCISS_GETQSTATS:
4596 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4598 switch (cr->cs_item) {
4601 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4602 sizeof(struct ciss_qstat));
4612 case CCISS_GETPCIINFO:
4614 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4616 pis->bus = pci_get_bus(sc->ciss_dev);
4617 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4618 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4619 pci_get_subdevice(sc->ciss_dev);
4624 case CCISS_GETINTINFO:
4626 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4628 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4629 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4634 case CCISS_SETINTINFO:
4636 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4638 if ((cis->delay == 0) && (cis->count == 0)) {
4644 * XXX apparently this is only safe if the controller is idle,
4645 * we should suspend it before doing this.
4647 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4648 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4650 if (ciss_update_config(sc))
4653 /* XXX resume the controller here */
4657 case CCISS_GETNODENAME:
4658 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4659 sizeof(NodeName_type));
4662 case CCISS_SETNODENAME:
4663 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4664 sizeof(NodeName_type));
4665 if (ciss_update_config(sc))
4669 case CCISS_GETHEARTBEAT:
4670 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4673 case CCISS_GETBUSTYPES:
4674 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4677 case CCISS_GETFIRMVER:
4678 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4679 sizeof(FirmwareVer_type));
4682 case CCISS_GETDRIVERVER:
4683 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4686 case CCISS_REVALIDVOLS:
4688 * This is a bit ugly; to do it "right" we really need
4689 * to find any disks that have changed, kick CAM off them,
4690 * then rescan only these disks. It'd be nice if they
4691 * a) told us which disk(s) they were going to play with,
4692 * and b) which ones had arrived. 8(
4697 case CCISS_PASSTHRU32:
4698 ioc_swab.LUN_info = ioc32->LUN_info;
4699 ioc_swab.Request = ioc32->Request;
4700 ioc_swab.error_info = ioc32->error_info;
4701 ioc_swab.buf_size = ioc32->buf_size;
4702 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4707 case CCISS_PASSTHRU:
4708 error = ciss_user_command(sc, ioc);
4712 debug(0, "unknown ioctl 0x%lx", cmd);
4714 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4715 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4716 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4717 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4718 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4719 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4720 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4721 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4722 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4723 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4724 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4730 mtx_unlock(&sc->ciss_mtx);