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);
276 /************************************************************************
277 * CISS adapters amazingly don't have a defined programming interface
278 * value. (One could say some very despairing things about PCI and
279 * people just not getting the general idea.) So we are forced to
280 * stick with matching against subvendor/subdevice, and thus have to
281 * be updated for every new CISS adapter that appears.
283 #define CISS_BOARD_UNKNWON 0
284 #define CISS_BOARD_SA5 1
285 #define CISS_BOARD_SA5B 2
286 #define CISS_BOARD_NOMSI (1<<4)
287 #define CISS_BOARD_SIMPLE (1<<5)
295 } ciss_vendor_data[] = {
296 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
297 "Compaq Smart Array 5300" },
298 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
299 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
300 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
301 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
302 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
303 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
304 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
305 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
306 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
308 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
309 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
310 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
311 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
312 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
313 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
314 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
315 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
317 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
318 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
319 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
320 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
321 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
323 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
325 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
326 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
327 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
328 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
329 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
330 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
331 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
332 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
333 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
334 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
335 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
336 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
337 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
338 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
339 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
340 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
341 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
342 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
343 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
344 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
345 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
346 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
347 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
348 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
349 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
350 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
351 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
352 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
353 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
354 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
355 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
356 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
357 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
358 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
359 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
360 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
361 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
362 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
363 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
364 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
365 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" },
366 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
367 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
371 static devclass_t ciss_devclass;
372 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
373 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data,
374 nitems(ciss_vendor_data) - 1);
375 MODULE_DEPEND(ciss, cam, 1, 1, 1);
376 MODULE_DEPEND(ciss, pci, 1, 1, 1);
378 /************************************************************************
379 * Find a match for the device in our list of known adapters.
382 ciss_lookup(device_t dev)
386 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
387 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
388 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
394 /************************************************************************
395 * Match a known CISS adapter.
398 ciss_probe(device_t dev)
402 i = ciss_lookup(dev);
404 device_set_desc(dev, ciss_vendor_data[i].desc);
405 return(BUS_PROBE_DEFAULT);
410 /************************************************************************
411 * Attach the driver to this adapter.
414 ciss_attach(device_t dev)
416 struct ciss_softc *sc;
422 /* print structure/union sizes */
423 debug_struct(ciss_command);
424 debug_struct(ciss_header);
425 debug_union(ciss_device_address);
426 debug_struct(ciss_cdb);
427 debug_struct(ciss_report_cdb);
428 debug_struct(ciss_notify_cdb);
429 debug_struct(ciss_notify);
430 debug_struct(ciss_message_cdb);
431 debug_struct(ciss_error_info_pointer);
432 debug_struct(ciss_error_info);
433 debug_struct(ciss_sg_entry);
434 debug_struct(ciss_config_table);
435 debug_struct(ciss_bmic_cdb);
436 debug_struct(ciss_bmic_id_ldrive);
437 debug_struct(ciss_bmic_id_lstatus);
438 debug_struct(ciss_bmic_id_table);
439 debug_struct(ciss_bmic_id_pdrive);
440 debug_struct(ciss_bmic_blink_pdrive);
441 debug_struct(ciss_bmic_flush_cache);
442 debug_const(CISS_MAX_REQUESTS);
443 debug_const(CISS_MAX_LOGICAL);
444 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
445 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
446 debug_const(CISS_COMMAND_ALLOC_SIZE);
447 debug_const(CISS_COMMAND_SG_LENGTH);
449 debug_type(cciss_pci_info_struct);
450 debug_type(cciss_coalint_struct);
451 debug_type(cciss_coalint_struct);
452 debug_type(NodeName_type);
453 debug_type(NodeName_type);
454 debug_type(Heartbeat_type);
455 debug_type(BusTypes_type);
456 debug_type(FirmwareVer_type);
457 debug_type(DriverVer_type);
458 debug_type(IOCTL_Command_struct);
461 sc = device_get_softc(dev);
463 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
464 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
467 * Do PCI-specific init.
469 if ((error = ciss_init_pci(sc)) != 0)
473 * Initialise driver queues.
476 ciss_initq_notify(sc);
479 * Initialize device sysctls.
481 ciss_init_sysctl(sc);
484 * Initialise command/request pool.
486 if ((error = ciss_init_requests(sc)) != 0)
490 * Get adapter information.
492 if ((error = ciss_identify_adapter(sc)) != 0)
496 * Find all the physical devices.
498 if ((error = ciss_init_physical(sc)) != 0)
502 * Build our private table of logical devices.
504 if ((error = ciss_init_logical(sc)) != 0)
508 * Enable interrupts so that the CAM scan can complete.
510 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
513 * Initialise the CAM interface.
515 if ((error = ciss_cam_init(sc)) != 0)
519 * Start the heartbeat routine and event chain.
524 * Create the control device.
526 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
527 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
528 "ciss%d", device_get_unit(sc->ciss_dev));
529 sc->ciss_dev_t->si_drv1 = sc;
532 * The adapter is running; synchronous commands can now sleep
533 * waiting for an interrupt to signal completion.
535 sc->ciss_flags |= CISS_FLAG_RUNNING;
537 ciss_spawn_notify_thread(sc);
542 /* ciss_free() expects the mutex to be held */
543 mtx_lock(&sc->ciss_mtx);
549 /************************************************************************
550 * Detach the driver from this adapter.
553 ciss_detach(device_t dev)
555 struct ciss_softc *sc = device_get_softc(dev);
559 mtx_lock(&sc->ciss_mtx);
560 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
561 mtx_unlock(&sc->ciss_mtx);
565 /* flush adapter cache */
566 ciss_flush_adapter(sc);
568 /* release all resources. The mutex is released and freed here too. */
574 /************************************************************************
575 * Prepare adapter for system shutdown.
578 ciss_shutdown(device_t dev)
580 struct ciss_softc *sc = device_get_softc(dev);
584 mtx_lock(&sc->ciss_mtx);
585 /* flush adapter cache */
586 ciss_flush_adapter(sc);
588 if (sc->ciss_soft_reset)
590 mtx_unlock(&sc->ciss_mtx);
596 ciss_init_sysctl(struct ciss_softc *sc)
599 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
600 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
601 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
604 /************************************************************************
605 * Perform PCI-specific attachment actions.
608 ciss_init_pci(struct ciss_softc *sc)
610 uintptr_t cbase, csize, cofs;
611 uint32_t method, supported_methods;
612 int error, sqmask, i;
618 * Work out adapter type.
620 i = ciss_lookup(sc->ciss_dev);
622 ciss_printf(sc, "unknown adapter type\n");
626 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
627 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
628 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
629 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
632 * XXX Big hammer, masks/unmasks all possible interrupts. This should
633 * work on all hardware variants. Need to add code to handle the
634 * "controller crashed" interrupt bit that this unmasks.
640 * Allocate register window first (we need this to find the config
644 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
645 if ((sc->ciss_regs_resource =
646 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
647 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
648 ciss_printf(sc, "can't allocate register window\n");
651 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
652 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
655 * Find the BAR holding the config structure. If it's not the one
656 * we already mapped for registers, map it too.
658 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
659 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
660 if ((sc->ciss_cfg_resource =
661 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
662 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
663 ciss_printf(sc, "can't allocate config window\n");
666 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
667 csize = rman_get_end(sc->ciss_cfg_resource) -
668 rman_get_start(sc->ciss_cfg_resource) + 1;
670 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
671 csize = rman_get_end(sc->ciss_regs_resource) -
672 rman_get_start(sc->ciss_regs_resource) + 1;
674 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
677 * Use the base/size/offset values we just calculated to
678 * sanity-check the config structure. If it's OK, point to it.
680 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
681 ciss_printf(sc, "config table outside window\n");
684 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
685 debug(1, "config struct at %p", sc->ciss_cfg);
688 * Calculate the number of request structures/commands we are
689 * going to provide for this adapter.
691 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
694 * Validate the config structure. If we supported other transport
695 * methods, we could select amongst them at this point in time.
697 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
698 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
699 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
700 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
705 * Select the mode of operation, prefer Performant.
707 if (!(sc->ciss_cfg->supported_methods &
708 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
709 ciss_printf(sc, "No supported transport layers: 0x%x\n",
710 sc->ciss_cfg->supported_methods);
713 switch (ciss_force_transport) {
715 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
718 supported_methods = CISS_TRANSPORT_METHOD_PERF;
722 * Override the capabilities of the BOARD and specify SIMPLE
725 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
726 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
728 supported_methods = sc->ciss_cfg->supported_methods;
733 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
734 method = CISS_TRANSPORT_METHOD_PERF;
735 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
736 sc->ciss_cfg->transport_offset);
737 if (ciss_init_perf(sc)) {
738 supported_methods &= ~method;
741 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
742 method = CISS_TRANSPORT_METHOD_SIMPLE;
744 ciss_printf(sc, "No supported transport methods: 0x%x\n",
745 sc->ciss_cfg->supported_methods);
750 * Tell it we're using the low 4GB of RAM. Set the default interrupt
751 * coalescing options.
753 sc->ciss_cfg->requested_method = method;
754 sc->ciss_cfg->command_physlimit = 0;
755 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
756 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
759 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
762 if (ciss_update_config(sc)) {
763 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
764 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
767 if ((sc->ciss_cfg->active_method & method) == 0) {
768 supported_methods &= ~method;
769 if (supported_methods == 0) {
770 ciss_printf(sc, "adapter refuses to go into available transports "
771 "mode (0x%x, 0x%x)\n", supported_methods,
772 sc->ciss_cfg->active_method);
779 * Wait for the adapter to come ready.
781 if ((error = ciss_wait_adapter(sc)) != 0)
784 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
785 * interrupts have a rid of 0, this will be overridden if MSIX is used.
787 sc->ciss_irq_rid[0] = 0;
788 if (method == CISS_TRANSPORT_METHOD_PERF) {
789 ciss_printf(sc, "PERFORMANT Transport\n");
790 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
791 intr = ciss_perf_msi_intr;
793 intr = ciss_perf_intr;
795 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
796 * Unfortunately, there is no good way to know if this is a SAS
797 * controller. Hopefully enabling this bit universally will work OK.
798 * It seems to work fine for SA6i controllers.
800 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
803 ciss_printf(sc, "SIMPLE Transport\n");
804 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
805 if (ciss_force_interrupt == 2)
806 /* If this fails, we automatically revert to INTx */
808 sc->ciss_perf = NULL;
810 sc->ciss_interrupt_mask = sqmask;
814 * Turn off interrupts before we go routing anything.
816 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
819 * Allocate and set up our interrupt.
821 if ((sc->ciss_irq_resource =
822 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
823 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
824 ciss_printf(sc, "can't allocate interrupt\n");
828 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
829 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
831 ciss_printf(sc, "can't set up interrupt\n");
836 * Allocate the parent bus DMA tag appropriate for our PCI
839 * Note that "simple" adapters can only address within a 32-bit
842 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
843 1, 0, /* alignment, boundary */
844 BUS_SPACE_MAXADDR, /* lowaddr */
845 BUS_SPACE_MAXADDR, /* highaddr */
846 NULL, NULL, /* filter, filterarg */
847 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
848 BUS_SPACE_UNRESTRICTED, /* nsegments */
849 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
851 NULL, NULL, /* lockfunc, lockarg */
852 &sc->ciss_parent_dmat)) {
853 ciss_printf(sc, "can't allocate parent DMA tag\n");
858 * Create DMA tag for mapping buffers into adapter-addressable
861 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
862 1, 0, /* alignment, boundary */
863 BUS_SPACE_MAXADDR, /* lowaddr */
864 BUS_SPACE_MAXADDR, /* highaddr */
865 NULL, NULL, /* filter, filterarg */
866 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
867 CISS_MAX_SG_ELEMENTS, /* nsegments */
868 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
869 BUS_DMA_ALLOCNOW, /* flags */
870 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
871 &sc->ciss_buffer_dmat)) {
872 ciss_printf(sc, "can't allocate buffer DMA tag\n");
878 /************************************************************************
879 * Setup MSI/MSIX operation (Performant only)
880 * Four interrupts are available, but we only use 1 right now. If MSI-X
881 * isn't avaialble, try using MSI instead.
884 ciss_setup_msix(struct ciss_softc *sc)
888 /* Weed out devices that don't actually support MSI */
889 i = ciss_lookup(sc->ciss_dev);
890 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
894 * Only need to use the minimum number of MSI vectors, as the driver
895 * doesn't support directed MSIX interrupts.
897 val = pci_msix_count(sc->ciss_dev);
898 if (val < CISS_MSI_COUNT) {
899 val = pci_msi_count(sc->ciss_dev);
900 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
901 if (val < CISS_MSI_COUNT)
904 val = MIN(val, CISS_MSI_COUNT);
905 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
906 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
912 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
913 (val != 1) ? "s" : "");
915 for (i = 0; i < val; i++)
916 sc->ciss_irq_rid[i] = i + 1;
922 /************************************************************************
923 * Setup the Performant structures.
926 ciss_init_perf(struct ciss_softc *sc)
928 struct ciss_perf_config *pc = sc->ciss_perf;
932 * Create the DMA tag for the reply queue.
934 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
935 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
936 1, 0, /* alignment, boundary */
937 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
938 BUS_SPACE_MAXADDR, /* highaddr */
939 NULL, NULL, /* filter, filterarg */
940 reply_size, 1, /* maxsize, nsegments */
941 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
943 NULL, NULL, /* lockfunc, lockarg */
944 &sc->ciss_reply_dmat)) {
945 ciss_printf(sc, "can't allocate reply DMA tag\n");
949 * Allocate memory and make it available for DMA.
951 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
952 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
953 ciss_printf(sc, "can't allocate reply memory\n");
956 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
957 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
958 bzero(sc->ciss_reply, reply_size);
960 sc->ciss_cycle = 0x1;
964 * Preload the fetch table with common command sizes. This allows the
965 * hardware to not waste bus cycles for typical i/o commands, but also not
966 * tax the driver to be too exact in choosing sizes. The table is optimized
967 * for page-aligned i/o's, but since most i/o comes from the various pagers,
968 * it's a reasonable assumption to make.
970 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
971 pc->fetch_count[CISS_SG_FETCH_1] =
972 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
973 pc->fetch_count[CISS_SG_FETCH_2] =
974 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
975 pc->fetch_count[CISS_SG_FETCH_4] =
976 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
977 pc->fetch_count[CISS_SG_FETCH_8] =
978 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
979 pc->fetch_count[CISS_SG_FETCH_16] =
980 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
981 pc->fetch_count[CISS_SG_FETCH_32] =
982 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
983 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
985 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
986 pc->rq_count = 1; /* XXX Hardcode for a single queue */
989 pc->rq[0].rq_addr_hi = 0x0;
990 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
995 /************************************************************************
996 * Wait for the adapter to come ready.
999 ciss_wait_adapter(struct ciss_softc *sc)
1006 * Wait for the adapter to come ready.
1008 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
1009 ciss_printf(sc, "waiting for adapter to come ready...\n");
1010 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1011 DELAY(1000000); /* one second */
1013 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1021 /************************************************************************
1022 * Flush the adapter cache.
1025 ciss_flush_adapter(struct ciss_softc *sc)
1027 struct ciss_request *cr;
1028 struct ciss_bmic_flush_cache *cbfc;
1029 int error, command_status;
1037 * Build a BMIC request to flush the cache. We don't disable
1038 * it, as we may be going to do more I/O (eg. we are emulating
1039 * the Synchronise Cache command).
1041 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1045 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1046 (void **)&cbfc, sizeof(*cbfc))) != 0)
1050 * Submit the request and wait for it to complete.
1052 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1053 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1060 ciss_report_request(cr, &command_status, NULL);
1061 switch(command_status) {
1062 case CISS_CMD_STATUS_SUCCESS:
1065 ciss_printf(sc, "error flushing cache (%s)\n",
1066 ciss_name_command_status(command_status));
1073 free(cbfc, CISS_MALLOC_CLASS);
1075 ciss_release_request(cr);
1080 ciss_soft_reset(struct ciss_softc *sc)
1082 struct ciss_request *cr = NULL;
1083 struct ciss_command *cc;
1086 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1087 /* only reset proxy controllers */
1088 if (sc->ciss_controllers[i].physical.bus == 0)
1091 if ((error = ciss_get_request(sc, &cr)) != 0)
1094 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1099 cc->header.address = sc->ciss_controllers[i];
1101 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1104 ciss_release_request(cr);
1108 ciss_printf(sc, "error resetting controller (%d)\n", error);
1111 ciss_release_request(cr);
1114 /************************************************************************
1115 * Allocate memory for the adapter command structures, initialise
1116 * the request structures.
1118 * Note that the entire set of commands are allocated in a single
1122 ciss_init_requests(struct ciss_softc *sc)
1124 struct ciss_request *cr;
1130 ciss_printf(sc, "using %d of %d available commands\n",
1131 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1134 * Create the DMA tag for commands.
1136 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1137 32, 0, /* alignment, boundary */
1138 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1139 BUS_SPACE_MAXADDR, /* highaddr */
1140 NULL, NULL, /* filter, filterarg */
1141 CISS_COMMAND_ALLOC_SIZE *
1142 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1143 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1145 NULL, NULL, /* lockfunc, lockarg */
1146 &sc->ciss_command_dmat)) {
1147 ciss_printf(sc, "can't allocate command DMA tag\n");
1151 * Allocate memory and make it available for DMA.
1153 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1154 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1155 ciss_printf(sc, "can't allocate command memory\n");
1158 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1159 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1160 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1161 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1164 * Set up the request and command structures, push requests onto
1167 for (i = 1; i < sc->ciss_max_requests; i++) {
1168 cr = &sc->ciss_request[i];
1171 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1172 CISS_COMMAND_ALLOC_SIZE * i);
1173 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1174 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1175 ciss_enqueue_free(cr);
1181 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1186 *addr = segs[0].ds_addr;
1189 /************************************************************************
1190 * Identify the adapter, print some information about it.
1193 ciss_identify_adapter(struct ciss_softc *sc)
1195 struct ciss_request *cr;
1196 int error, command_status;
1203 * Get a request, allocate storage for the adapter data.
1205 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1206 (void **)&sc->ciss_id,
1207 sizeof(*sc->ciss_id))) != 0)
1211 * Submit the request and wait for it to complete.
1213 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1214 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1221 ciss_report_request(cr, &command_status, NULL);
1222 switch(command_status) {
1223 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1225 case CISS_CMD_STATUS_DATA_UNDERRUN:
1226 case CISS_CMD_STATUS_DATA_OVERRUN:
1227 ciss_printf(sc, "data over/underrun reading adapter information\n");
1229 ciss_printf(sc, "error reading adapter information (%s)\n",
1230 ciss_name_command_status(command_status));
1235 /* sanity-check reply */
1236 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1237 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1243 /* XXX later revisions may not need this */
1244 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1247 /* XXX only really required for old 5300 adapters? */
1248 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1251 * Earlier controller specs do not contain these config
1252 * entries, so assume that a 0 means its old and assign
1253 * these values to the defaults that were established
1254 * when this driver was developed for them
1256 if (sc->ciss_cfg->max_logical_supported == 0)
1257 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1258 if (sc->ciss_cfg->max_physical_supported == 0)
1259 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1260 /* print information */
1262 ciss_printf(sc, " %d logical drive%s configured\n",
1263 sc->ciss_id->configured_logical_drives,
1264 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1265 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1266 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1268 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1269 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1270 ciss_printf(sc, " supported I/O methods 0x%b\n",
1271 sc->ciss_cfg->supported_methods,
1272 "\20\1READY\2simple\3performant\4MEMQ\n");
1273 ciss_printf(sc, " active I/O method 0x%b\n",
1274 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1275 ciss_printf(sc, " 4G page base 0x%08x\n",
1276 sc->ciss_cfg->command_physlimit);
1277 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1278 sc->ciss_cfg->interrupt_coalesce_delay);
1279 ciss_printf(sc, " interrupt coalesce count %d\n",
1280 sc->ciss_cfg->interrupt_coalesce_count);
1281 ciss_printf(sc, " max outstanding commands %d\n",
1282 sc->ciss_cfg->max_outstanding_commands);
1283 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1284 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1285 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1286 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1287 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1288 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1289 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1290 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1291 "Available" : "Unavailable");
1292 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1293 "Enabled" : "Disabled");
1298 if (sc->ciss_id != NULL) {
1299 free(sc->ciss_id, CISS_MALLOC_CLASS);
1304 ciss_release_request(cr);
1308 /************************************************************************
1309 * Helper routine for generating a list of logical and physical luns.
1311 static struct ciss_lun_report *
1312 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1314 struct ciss_request *cr;
1315 struct ciss_command *cc;
1316 struct ciss_report_cdb *crc;
1317 struct ciss_lun_report *cll;
1328 * Get a request, allocate storage for the address list.
1330 if ((error = ciss_get_request(sc, &cr)) != 0)
1332 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1333 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1334 ciss_printf(sc, "can't allocate memory for lun report\n");
1340 * Build the Report Logical/Physical LUNs command.
1344 cr->cr_length = report_size;
1345 cr->cr_flags = CISS_REQ_DATAIN;
1347 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1348 cc->header.address.physical.bus = 0;
1349 cc->header.address.physical.target = 0;
1350 cc->cdb.cdb_length = sizeof(*crc);
1351 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1352 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1353 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1354 cc->cdb.timeout = 30; /* XXX better suggestions? */
1356 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1357 bzero(crc, sizeof(*crc));
1358 crc->opcode = opcode;
1359 crc->length = htonl(report_size); /* big-endian field */
1360 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1363 * Submit the request and wait for it to complete. (timeout
1364 * here should be much greater than above)
1366 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1367 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1372 * Check response. Note that data over/underrun is OK.
1374 ciss_report_request(cr, &command_status, NULL);
1375 switch(command_status) {
1376 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1377 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1379 case CISS_CMD_STATUS_DATA_OVERRUN:
1380 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1381 sc->ciss_cfg->max_logical_supported);
1384 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1385 ciss_name_command_status(command_status));
1389 ciss_release_request(cr);
1394 ciss_release_request(cr);
1395 if (error && cll != NULL) {
1396 free(cll, CISS_MALLOC_CLASS);
1402 /************************************************************************
1403 * Find logical drives on the adapter.
1406 ciss_init_logical(struct ciss_softc *sc)
1408 struct ciss_lun_report *cll;
1409 int error = 0, i, j;
1414 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1415 sc->ciss_cfg->max_logical_supported);
1421 /* sanity-check reply */
1422 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1423 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1424 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1425 ndrives, sc->ciss_cfg->max_logical_supported);
1431 * Save logical drive information.
1434 ciss_printf(sc, "%d logical drive%s\n",
1435 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1439 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1440 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1441 if (sc->ciss_logical == NULL) {
1446 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1447 sc->ciss_logical[i] =
1448 malloc(sc->ciss_cfg->max_logical_supported *
1449 sizeof(struct ciss_ldrive),
1450 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1451 if (sc->ciss_logical[i] == NULL) {
1456 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1457 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1461 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1463 struct ciss_ldrive *ld;
1466 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1467 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1468 ld = &sc->ciss_logical[bus][target];
1470 ld->cl_address = cll->lun[i];
1471 ld->cl_controller = &sc->ciss_controllers[bus];
1472 if (ciss_identify_logical(sc, ld) != 0)
1475 * If the drive has had media exchanged, we should bring it online.
1477 if (ld->cl_lstatus->media_exchanged)
1478 ciss_accept_media(sc, ld);
1485 free(cll, CISS_MALLOC_CLASS);
1490 ciss_init_physical(struct ciss_softc *sc)
1492 struct ciss_lun_report *cll;
1502 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1503 sc->ciss_cfg->max_physical_supported);
1509 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1512 ciss_printf(sc, "%d physical device%s\n",
1513 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1517 * Figure out the bus mapping.
1518 * Logical buses include both the local logical bus for local arrays and
1519 * proxy buses for remote arrays. Physical buses are numbered by the
1520 * controller and represent physical buses that hold physical devices.
1521 * We shift these bus numbers so that everything fits into a single flat
1522 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1523 * numbers, and the physical bus numbers are shifted to be above that.
1524 * This results in the various driver arrays being indexed as follows:
1526 * ciss_controllers[] - indexed by logical bus
1527 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1528 * being shifted by 32.
1529 * ciss_logical[][] - indexed by logical bus
1530 * ciss_physical[][] - indexed by physical bus
1532 * XXX This is getting more and more hackish. CISS really doesn't play
1533 * well with a standard SCSI model; devices are addressed via magic
1534 * cookies, not via b/t/l addresses. Since there is no way to store
1535 * the cookie in the CAM device object, we have to keep these lookup
1536 * tables handy so that the devices can be found quickly at the cost
1537 * of wasting memory and having a convoluted lookup scheme. This
1538 * driver should probably be converted to block interface.
1541 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1542 * controller. A proxy controller is another physical controller
1543 * behind the primary PCI controller. We need to know about this
1544 * so that BMIC commands can be properly targeted. There can be
1545 * proxy controllers attached to a single PCI controller, so
1546 * find the highest numbered one so the array can be properly
1549 sc->ciss_max_logical_bus = 1;
1550 for (i = 0; i < nphys; i++) {
1551 if (cll->lun[i].physical.extra_address == 0) {
1552 bus = cll->lun[i].physical.bus;
1553 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1555 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1556 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1560 sc->ciss_controllers =
1561 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1562 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1564 if (sc->ciss_controllers == NULL) {
1565 ciss_printf(sc, "Could not allocate memory for controller map\n");
1570 /* setup a map of controller addresses */
1571 for (i = 0; i < nphys; i++) {
1572 if (cll->lun[i].physical.extra_address == 0) {
1573 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1578 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1579 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1580 if (sc->ciss_physical == NULL) {
1581 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1586 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1587 sc->ciss_physical[i] =
1588 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1589 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1590 if (sc->ciss_physical[i] == NULL) {
1591 ciss_printf(sc, "Could not allocate memory for target map\n");
1597 ciss_filter_physical(sc, cll);
1601 free(cll, CISS_MALLOC_CLASS);
1607 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1613 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1614 for (i = 0; i < nphys; i++) {
1615 if (cll->lun[i].physical.extra_address == 0)
1619 * Filter out devices that we don't want. Level 3 LUNs could
1620 * probably be supported, but the docs don't give enough of a
1623 * The mode field of the physical address is likely set to have
1624 * hard disks masked out. Honor it unless the user has overridden
1625 * us with the tunable. We also munge the inquiry data for these
1626 * disks so that they only show up as passthrough devices. Keeping
1627 * them visible in this fashion is useful for doing things like
1628 * flashing firmware.
1630 ea = cll->lun[i].physical.extra_address;
1631 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1632 (CISS_EXTRA_MODE2(ea) == 0x3))
1634 if ((ciss_expose_hidden_physical == 0) &&
1635 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1639 * Note: CISS firmware numbers physical busses starting at '1', not
1640 * '0'. This numbering is internal to the firmware and is only
1641 * used as a hint here.
1643 bus = CISS_EXTRA_BUS2(ea) - 1;
1644 target = CISS_EXTRA_TARGET2(ea);
1645 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1646 sc->ciss_physical[bus][target].cp_online = 1;
1653 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1655 struct ciss_request *cr;
1656 struct ciss_command *cc;
1657 struct scsi_inquiry *inq;
1663 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1665 if ((error = ciss_get_request(sc, &cr)) != 0)
1669 cr->cr_data = &ld->cl_geometry;
1670 cr->cr_length = sizeof(ld->cl_geometry);
1671 cr->cr_flags = CISS_REQ_DATAIN;
1673 cc->header.address = ld->cl_address;
1674 cc->cdb.cdb_length = 6;
1675 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1676 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1677 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1678 cc->cdb.timeout = 30;
1680 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1681 inq->opcode = INQUIRY;
1682 inq->byte2 = SI_EVPD;
1683 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1684 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1686 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1687 ciss_printf(sc, "error getting geometry (%d)\n", error);
1691 ciss_report_request(cr, &command_status, NULL);
1692 switch(command_status) {
1693 case CISS_CMD_STATUS_SUCCESS:
1694 case CISS_CMD_STATUS_DATA_UNDERRUN:
1696 case CISS_CMD_STATUS_DATA_OVERRUN:
1697 ciss_printf(sc, "WARNING: Data overrun\n");
1700 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1701 ciss_name_command_status(command_status));
1707 ciss_release_request(cr);
1710 /************************************************************************
1711 * Identify a logical drive, initialise state related to it.
1714 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1716 struct ciss_request *cr;
1717 struct ciss_command *cc;
1718 struct ciss_bmic_cdb *cbc;
1719 int error, command_status;
1726 * Build a BMIC request to fetch the drive ID.
1728 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1729 (void **)&ld->cl_ldrive,
1730 sizeof(*ld->cl_ldrive))) != 0)
1733 cc->header.address = *ld->cl_controller; /* target controller */
1734 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1735 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1738 * Submit the request and wait for it to complete.
1740 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1741 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1748 ciss_report_request(cr, &command_status, NULL);
1749 switch(command_status) {
1750 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1752 case CISS_CMD_STATUS_DATA_UNDERRUN:
1753 case CISS_CMD_STATUS_DATA_OVERRUN:
1754 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1756 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1757 ciss_name_command_status(command_status));
1761 ciss_release_request(cr);
1765 * Build a CISS BMIC command to get the logical drive status.
1767 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1771 * Get the logical drive geometry.
1773 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1777 * Print the drive's basic characteristics.
1780 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1781 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1782 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1783 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1784 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1785 ld->cl_ldrive->block_size));
1787 ciss_print_ldrive(sc, ld);
1791 /* make the drive not-exist */
1792 ld->cl_status = CISS_LD_NONEXISTENT;
1793 if (ld->cl_ldrive != NULL) {
1794 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1795 ld->cl_ldrive = NULL;
1797 if (ld->cl_lstatus != NULL) {
1798 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1799 ld->cl_lstatus = NULL;
1803 ciss_release_request(cr);
1808 /************************************************************************
1809 * Get status for a logical drive.
1811 * XXX should we also do this in response to Test Unit Ready?
1814 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1816 struct ciss_request *cr;
1817 struct ciss_command *cc;
1818 struct ciss_bmic_cdb *cbc;
1819 int error, command_status;
1822 * Build a CISS BMIC command to get the logical drive status.
1824 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1825 (void **)&ld->cl_lstatus,
1826 sizeof(*ld->cl_lstatus))) != 0)
1829 cc->header.address = *ld->cl_controller; /* target controller */
1830 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1831 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1834 * Submit the request and wait for it to complete.
1836 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1837 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1844 ciss_report_request(cr, &command_status, NULL);
1845 switch(command_status) {
1846 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1848 case CISS_CMD_STATUS_DATA_UNDERRUN:
1849 case CISS_CMD_STATUS_DATA_OVERRUN:
1850 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1852 ciss_printf(sc, "error reading logical drive status (%s)\n",
1853 ciss_name_command_status(command_status));
1859 * Set the drive's summary status based on the returned status.
1861 * XXX testing shows that a failed JBOD drive comes back at next
1862 * boot in "queued for expansion" mode. WTF?
1864 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1868 ciss_release_request(cr);
1872 /************************************************************************
1873 * Notify the adapter of a config update.
1876 ciss_update_config(struct ciss_softc *sc)
1882 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1883 for (i = 0; i < 1000; i++) {
1884 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1885 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1893 /************************************************************************
1894 * Accept new media into a logical drive.
1896 * XXX The drive has previously been offline; it would be good if we
1897 * could make sure it's not open right now.
1900 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1902 struct ciss_request *cr;
1903 struct ciss_command *cc;
1904 struct ciss_bmic_cdb *cbc;
1906 int error = 0, ldrive;
1908 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1910 debug(0, "bringing logical drive %d back online", ldrive);
1913 * Build a CISS BMIC command to bring the drive back online.
1915 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1919 cc->header.address = *ld->cl_controller; /* target controller */
1920 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1921 cbc->log_drive = ldrive;
1924 * Submit the request and wait for it to complete.
1926 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1927 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1934 ciss_report_request(cr, &command_status, NULL);
1935 switch(command_status) {
1936 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1937 /* we should get a logical drive status changed event here */
1940 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1941 ciss_name_command_status(command_status));
1947 ciss_release_request(cr);
1951 /************************************************************************
1952 * Release adapter resources.
1955 ciss_free(struct ciss_softc *sc)
1957 struct ciss_request *cr;
1962 /* we're going away */
1963 sc->ciss_flags |= CISS_FLAG_ABORTING;
1965 /* terminate the periodic heartbeat routine */
1966 callout_stop(&sc->ciss_periodic);
1968 /* cancel the Event Notify chain */
1969 ciss_notify_abort(sc);
1971 ciss_kill_notify_thread(sc);
1973 /* disconnect from CAM */
1974 if (sc->ciss_cam_sim) {
1975 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1976 if (sc->ciss_cam_sim[i]) {
1977 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1978 cam_sim_free(sc->ciss_cam_sim[i], 0);
1981 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1982 CISS_PHYSICAL_BASE; i++) {
1983 if (sc->ciss_cam_sim[i]) {
1984 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1985 cam_sim_free(sc->ciss_cam_sim[i], 0);
1988 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1990 if (sc->ciss_cam_devq)
1991 cam_simq_free(sc->ciss_cam_devq);
1993 /* remove the control device */
1994 mtx_unlock(&sc->ciss_mtx);
1995 if (sc->ciss_dev_t != NULL)
1996 destroy_dev(sc->ciss_dev_t);
1998 /* Final cleanup of the callout. */
1999 callout_drain(&sc->ciss_periodic);
2000 mtx_destroy(&sc->ciss_mtx);
2002 /* free the controller data */
2003 if (sc->ciss_id != NULL)
2004 free(sc->ciss_id, CISS_MALLOC_CLASS);
2006 /* release I/O resources */
2007 if (sc->ciss_regs_resource != NULL)
2008 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2009 sc->ciss_regs_rid, sc->ciss_regs_resource);
2010 if (sc->ciss_cfg_resource != NULL)
2011 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2012 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2013 if (sc->ciss_intr != NULL)
2014 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2015 if (sc->ciss_irq_resource != NULL)
2016 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2017 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2019 pci_release_msi(sc->ciss_dev);
2021 while ((cr = ciss_dequeue_free(sc)) != NULL)
2022 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2023 if (sc->ciss_buffer_dmat)
2024 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2026 /* destroy command memory and DMA tag */
2027 if (sc->ciss_command != NULL) {
2028 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2029 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2031 if (sc->ciss_command_dmat)
2032 bus_dma_tag_destroy(sc->ciss_command_dmat);
2034 if (sc->ciss_reply) {
2035 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2036 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2038 if (sc->ciss_reply_dmat)
2039 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2041 /* destroy DMA tags */
2042 if (sc->ciss_parent_dmat)
2043 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2044 if (sc->ciss_logical) {
2045 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2046 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2047 if (sc->ciss_logical[i][j].cl_ldrive)
2048 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2049 if (sc->ciss_logical[i][j].cl_lstatus)
2050 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2052 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2054 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2057 if (sc->ciss_physical) {
2058 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2059 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2060 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2063 if (sc->ciss_controllers)
2064 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2068 /************************************************************************
2069 * Give a command to the adapter.
2071 * Note that this uses the simple transport layer directly. If we
2072 * want to add support for other layers, we'll need a switch of some
2075 * Note that the simple transport layer has no way of refusing a
2076 * command; we only have as many request structures as the adapter
2077 * supports commands, so we don't have to check (this presumes that
2078 * the adapter can handle commands as fast as we throw them at it).
2081 ciss_start(struct ciss_request *cr)
2083 struct ciss_command *cc; /* XXX debugging only */
2087 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2090 * Map the request's data.
2092 if ((error = ciss_map_request(cr)))
2096 ciss_print_request(cr);
2102 /************************************************************************
2103 * Fetch completed request(s) from the adapter, queue them for
2104 * completion handling.
2106 * Note that this uses the simple transport layer directly. If we
2107 * want to add support for other layers, we'll need a switch of some
2110 * Note that the simple transport mechanism does not require any
2111 * reentrancy protection; the OPQ read is atomic. If there is a
2112 * chance of a race with something else that might move the request
2113 * off the busy list, then we will have to lock against that
2114 * (eg. timeouts, etc.)
2117 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2119 struct ciss_request *cr;
2120 struct ciss_command *cc;
2121 u_int32_t tag, index;
2126 * Loop quickly taking requests from the adapter and moving them
2127 * to the completed queue.
2131 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2132 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2135 debug(2, "completed command %d%s", index,
2136 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2137 if (index >= sc->ciss_max_requests) {
2138 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2141 cr = &(sc->ciss_request[index]);
2143 cc->header.host_tag = tag; /* not updated by adapter */
2144 ciss_enqueue_complete(cr, qh);
2150 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2152 struct ciss_request *cr;
2153 struct ciss_command *cc;
2154 u_int32_t tag, index;
2159 * Loop quickly taking requests from the adapter and moving them
2160 * to the completed queue.
2163 tag = sc->ciss_reply[sc->ciss_rqidx];
2164 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2167 debug(2, "completed command %d%s\n", index,
2168 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2169 if (index < sc->ciss_max_requests) {
2170 cr = &(sc->ciss_request[index]);
2172 cc->header.host_tag = tag; /* not updated by adapter */
2173 ciss_enqueue_complete(cr, qh);
2175 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2177 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2179 sc->ciss_cycle ^= 1;
2185 /************************************************************************
2186 * Take an interrupt from the adapter.
2189 ciss_intr(void *arg)
2192 struct ciss_softc *sc = (struct ciss_softc *)arg;
2195 * The only interrupt we recognise indicates that there are
2196 * entries in the outbound post queue.
2200 mtx_lock(&sc->ciss_mtx);
2201 ciss_complete(sc, &qh);
2202 mtx_unlock(&sc->ciss_mtx);
2206 ciss_perf_intr(void *arg)
2208 struct ciss_softc *sc = (struct ciss_softc *)arg;
2210 /* Clear the interrupt and flush the bridges. Docs say that the flush
2211 * needs to be done twice, which doesn't seem right.
2213 CISS_TL_PERF_CLEAR_INT(sc);
2214 CISS_TL_PERF_FLUSH_INT(sc);
2216 ciss_perf_msi_intr(sc);
2220 ciss_perf_msi_intr(void *arg)
2223 struct ciss_softc *sc = (struct ciss_softc *)arg;
2226 ciss_perf_done(sc, &qh);
2227 mtx_lock(&sc->ciss_mtx);
2228 ciss_complete(sc, &qh);
2229 mtx_unlock(&sc->ciss_mtx);
2233 /************************************************************************
2234 * Process completed requests.
2236 * Requests can be completed in three fashions:
2238 * - by invoking a callback function (cr_complete is non-null)
2239 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2240 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2243 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2245 struct ciss_request *cr;
2250 * Loop taking requests off the completed queue and performing
2251 * completion processing on them.
2254 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2256 ciss_unmap_request(cr);
2258 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2259 ciss_printf(sc, "WARNING: completing non-busy request\n");
2260 cr->cr_flags &= ~CISS_REQ_BUSY;
2263 * If the request has a callback, invoke it.
2265 if (cr->cr_complete != NULL) {
2266 cr->cr_complete(cr);
2271 * If someone is sleeping on this request, wake them up.
2273 if (cr->cr_flags & CISS_REQ_SLEEP) {
2274 cr->cr_flags &= ~CISS_REQ_SLEEP;
2280 * If someone is polling this request for completion, signal.
2282 if (cr->cr_flags & CISS_REQ_POLL) {
2283 cr->cr_flags &= ~CISS_REQ_POLL;
2288 * Give up and throw the request back on the free queue. This
2289 * should never happen; resources will probably be lost.
2291 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2292 ciss_enqueue_free(cr);
2296 /************************************************************************
2297 * Report on the completion status of a request, and pass back SCSI
2298 * and command status values.
2301 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2303 struct ciss_command *cc;
2304 struct ciss_error_info *ce;
2309 ce = (struct ciss_error_info *)&(cc->sg[0]);
2312 * We don't consider data under/overrun an error for the Report
2313 * Logical/Physical LUNs commands.
2315 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2316 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2317 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2318 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2319 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2320 (cc->cdb.cdb[0] == INQUIRY))) {
2321 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2322 debug(2, "ignoring irrelevant under/overrun error");
2326 * Check the command's error bit, if clear, there's no status and
2329 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2330 if (scsi_status != NULL)
2331 *scsi_status = SCSI_STATUS_OK;
2332 if (command_status != NULL)
2333 *command_status = CISS_CMD_STATUS_SUCCESS;
2336 if (command_status != NULL)
2337 *command_status = ce->command_status;
2338 if (scsi_status != NULL) {
2339 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2340 *scsi_status = ce->scsi_status;
2346 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2347 ce->command_status, ciss_name_command_status(ce->command_status),
2349 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2350 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2351 ce->additional_error_info.invalid_command.offense_size,
2352 ce->additional_error_info.invalid_command.offense_offset,
2353 ce->additional_error_info.invalid_command.offense_value,
2358 ciss_print_request(cr);
2363 /************************************************************************
2364 * Issue a request and don't return until it's completed.
2366 * Depending on adapter status, we may poll or sleep waiting for
2370 ciss_synch_request(struct ciss_request *cr, int timeout)
2372 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2373 return(ciss_wait_request(cr, timeout));
2375 return(ciss_poll_request(cr, timeout));
2379 /************************************************************************
2380 * Issue a request and poll for completion.
2382 * Timeout in milliseconds.
2385 ciss_poll_request(struct ciss_request *cr, int timeout)
2388 struct ciss_softc *sc;
2395 cr->cr_flags |= CISS_REQ_POLL;
2396 if ((error = ciss_start(cr)) != 0)
2401 ciss_perf_done(sc, &qh);
2404 ciss_complete(sc, &qh);
2405 if (!(cr->cr_flags & CISS_REQ_POLL))
2408 } while (timeout-- >= 0);
2409 return(EWOULDBLOCK);
2412 /************************************************************************
2413 * Issue a request and sleep waiting for completion.
2415 * Timeout in milliseconds. Note that a spurious wakeup will reset
2419 ciss_wait_request(struct ciss_request *cr, int timeout)
2425 cr->cr_flags |= CISS_REQ_SLEEP;
2426 if ((error = ciss_start(cr)) != 0)
2429 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2430 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2431 SBT_1MS * timeout, 0, 0);
2437 /************************************************************************
2438 * Abort a request. Note that a potential exists here to race the
2439 * request being completed; the caller must deal with this.
2442 ciss_abort_request(struct ciss_request *ar)
2444 struct ciss_request *cr;
2445 struct ciss_command *cc;
2446 struct ciss_message_cdb *cmc;
2452 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2455 /* build the abort command */
2457 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2458 cc->header.address.physical.target = 0;
2459 cc->header.address.physical.bus = 0;
2460 cc->cdb.cdb_length = sizeof(*cmc);
2461 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2462 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2463 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2464 cc->cdb.timeout = 30;
2466 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2467 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2468 cmc->type = CISS_MESSAGE_ABORT_TASK;
2469 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2472 * Send the request and wait for a response. If we believe we
2473 * aborted the request OK, clear the flag that indicates it's
2476 error = ciss_synch_request(cr, 35 * 1000);
2478 error = ciss_report_request(cr, NULL, NULL);
2479 ciss_release_request(cr);
2486 /************************************************************************
2487 * Fetch and initialise a request
2490 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2492 struct ciss_request *cr;
2497 * Get a request and clean it up.
2499 if ((cr = ciss_dequeue_free(sc)) == NULL)
2504 cr->cr_complete = NULL;
2505 cr->cr_private = NULL;
2506 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2508 ciss_preen_command(cr);
2514 ciss_preen_command(struct ciss_request *cr)
2516 struct ciss_command *cc;
2520 * Clean up the command structure.
2522 * Note that we set up the error_info structure here, since the
2523 * length can be overwritten by any command.
2526 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2527 cc->header.sg_total = 0;
2528 cc->header.host_tag = cr->cr_tag << 2;
2529 cc->header.host_tag_zeroes = 0;
2530 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2531 cmdphys = cr->cr_ccphys;
2532 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2533 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2536 /************************************************************************
2537 * Release a request to the free list.
2540 ciss_release_request(struct ciss_request *cr)
2542 struct ciss_softc *sc;
2548 /* release the request to the free queue */
2549 ciss_requeue_free(cr);
2552 /************************************************************************
2553 * Allocate a request that will be used to send a BMIC command. Do some
2554 * of the common setup here to avoid duplicating it everywhere else.
2557 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2558 int opcode, void **bufp, size_t bufsize)
2560 struct ciss_request *cr;
2561 struct ciss_command *cc;
2562 struct ciss_bmic_cdb *cbc;
2575 if ((error = ciss_get_request(sc, &cr)) != 0)
2579 * Allocate data storage if requested, determine the data direction.
2582 if ((bufsize > 0) && (bufp != NULL)) {
2583 if (*bufp == NULL) {
2584 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2590 dataout = 1; /* we are given a buffer, so we are writing */
2595 * Build a CISS BMIC command to get the logical drive ID.
2598 cr->cr_length = bufsize;
2600 cr->cr_flags = CISS_REQ_DATAIN;
2603 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2604 cc->header.address.physical.bus = 0;
2605 cc->header.address.physical.target = 0;
2606 cc->cdb.cdb_length = sizeof(*cbc);
2607 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2608 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2609 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2610 cc->cdb.timeout = 0;
2612 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2613 bzero(cbc, sizeof(*cbc));
2614 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2615 cbc->bmic_opcode = opcode;
2616 cbc->size = htons((u_int16_t)bufsize);
2621 ciss_release_request(cr);
2624 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2630 /************************************************************************
2631 * Handle a command passed in from userspace.
2634 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2636 struct ciss_request *cr;
2637 struct ciss_command *cc;
2638 struct ciss_error_info *ce;
2648 while (ciss_get_request(sc, &cr) != 0)
2649 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2653 * Allocate an in-kernel databuffer if required, copy in user data.
2655 mtx_unlock(&sc->ciss_mtx);
2656 cr->cr_length = ioc->buf_size;
2657 if (ioc->buf_size > 0) {
2658 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2662 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2663 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2669 * Build the request based on the user command.
2671 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2672 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2674 /* XXX anything else to populate here? */
2675 mtx_lock(&sc->ciss_mtx);
2680 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2681 debug(0, "request failed - %d", error);
2686 * Check to see if the command succeeded.
2688 ce = (struct ciss_error_info *)&(cc->sg[0]);
2689 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2690 bzero(ce, sizeof(*ce));
2693 * Copy the results back to the user.
2695 bcopy(ce, &ioc->error_info, sizeof(*ce));
2696 mtx_unlock(&sc->ciss_mtx);
2697 if ((ioc->buf_size > 0) &&
2698 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2699 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2707 mtx_lock(&sc->ciss_mtx);
2710 if ((cr != NULL) && (cr->cr_data != NULL))
2711 free(cr->cr_data, CISS_MALLOC_CLASS);
2713 ciss_release_request(cr);
2717 /************************************************************************
2718 * Map a request into bus-visible space, initialise the scatter/gather
2722 ciss_map_request(struct ciss_request *cr)
2724 struct ciss_softc *sc;
2731 /* check that mapping is necessary */
2732 if (cr->cr_flags & CISS_REQ_MAPPED)
2735 cr->cr_flags |= CISS_REQ_MAPPED;
2737 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2738 BUS_DMASYNC_PREWRITE);
2740 if (cr->cr_data != NULL) {
2741 if (cr->cr_flags & CISS_REQ_CCB)
2742 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2743 cr->cr_datamap, cr->cr_data,
2744 ciss_request_map_helper, cr, 0);
2746 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2747 cr->cr_data, cr->cr_length,
2748 ciss_request_map_helper, cr, 0);
2753 * Post the command to the adapter.
2755 cr->cr_sg_tag = CISS_SG_NONE;
2756 cr->cr_flags |= CISS_REQ_BUSY;
2758 CISS_TL_PERF_POST_CMD(sc, cr);
2760 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2767 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2769 struct ciss_command *cc;
2770 struct ciss_request *cr;
2771 struct ciss_softc *sc;
2776 cr = (struct ciss_request *)arg;
2780 for (i = 0; i < nseg; i++) {
2781 cc->sg[i].address = segs[i].ds_addr;
2782 cc->sg[i].length = segs[i].ds_len;
2783 cc->sg[i].extension = 0;
2785 /* we leave the s/g table entirely within the command */
2786 cc->header.sg_in_list = nseg;
2787 cc->header.sg_total = nseg;
2789 if (cr->cr_flags & CISS_REQ_DATAIN)
2790 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2791 if (cr->cr_flags & CISS_REQ_DATAOUT)
2792 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2795 cr->cr_sg_tag = CISS_SG_NONE;
2797 cr->cr_sg_tag = CISS_SG_1;
2799 cr->cr_sg_tag = CISS_SG_2;
2801 cr->cr_sg_tag = CISS_SG_4;
2803 cr->cr_sg_tag = CISS_SG_8;
2804 else if (nseg <= 16)
2805 cr->cr_sg_tag = CISS_SG_16;
2806 else if (nseg <= 32)
2807 cr->cr_sg_tag = CISS_SG_32;
2809 cr->cr_sg_tag = CISS_SG_MAX;
2812 * Post the command to the adapter.
2814 cr->cr_flags |= CISS_REQ_BUSY;
2816 CISS_TL_PERF_POST_CMD(sc, cr);
2818 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2821 /************************************************************************
2822 * Unmap a request from bus-visible space.
2825 ciss_unmap_request(struct ciss_request *cr)
2827 struct ciss_softc *sc;
2833 /* check that unmapping is necessary */
2834 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2837 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2838 BUS_DMASYNC_POSTWRITE);
2840 if (cr->cr_data == NULL)
2843 if (cr->cr_flags & CISS_REQ_DATAIN)
2844 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2845 if (cr->cr_flags & CISS_REQ_DATAOUT)
2846 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2848 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2850 cr->cr_flags &= ~CISS_REQ_MAPPED;
2853 /************************************************************************
2854 * Attach the driver to CAM.
2856 * We put all the logical drives on a single SCSI bus.
2859 ciss_cam_init(struct ciss_softc *sc)
2866 * Allocate a devq. We can reuse this for the masked physical
2867 * devices if we decide to export these as well.
2869 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2870 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2877 * This naturally wastes a bit of memory. The alternative is to allocate
2878 * and register each bus as it is found, and then track them on a linked
2879 * list. Unfortunately, the driver has a few places where it needs to
2880 * look up the SIM based solely on bus number, and it's unclear whether
2881 * a list traversal would work for these situations.
2883 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2884 CISS_PHYSICAL_BASE);
2885 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2886 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2887 if (sc->ciss_cam_sim == NULL) {
2888 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2892 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2893 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2895 device_get_unit(sc->ciss_dev),
2898 sc->ciss_max_requests - 2,
2899 sc->ciss_cam_devq)) == NULL) {
2900 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2905 * Register bus with this SIM.
2907 mtx_lock(&sc->ciss_mtx);
2908 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2909 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2910 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2911 mtx_unlock(&sc->ciss_mtx);
2915 mtx_unlock(&sc->ciss_mtx);
2918 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2919 CISS_PHYSICAL_BASE; i++) {
2920 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2922 device_get_unit(sc->ciss_dev),
2924 sc->ciss_max_requests - 2,
2925 sc->ciss_cam_devq)) == NULL) {
2926 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2930 mtx_lock(&sc->ciss_mtx);
2931 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2932 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2933 mtx_unlock(&sc->ciss_mtx);
2936 mtx_unlock(&sc->ciss_mtx);
2942 /************************************************************************
2943 * Initiate a rescan of the 'logical devices' SIM
2946 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2952 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2953 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2957 if (xpt_create_path(&ccb->ccb_h.path, NULL,
2958 cam_sim_path(sc->ciss_cam_sim[bus]),
2959 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2960 ciss_printf(sc, "rescan failed (can't create path)\n");
2965 /* scan is now in progress */
2968 /************************************************************************
2969 * Handle requests coming from CAM
2972 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2974 struct ciss_softc *sc;
2975 struct ccb_scsiio *csio;
2979 sc = cam_sim_softc(sim);
2980 bus = cam_sim_bus(sim);
2981 csio = (struct ccb_scsiio *)&ccb->csio;
2982 target = csio->ccb_h.target_id;
2983 physical = CISS_IS_PHYSICAL(bus);
2985 switch (ccb->ccb_h.func_code) {
2987 /* perform SCSI I/O */
2989 if (!ciss_cam_action_io(sim, csio))
2993 /* perform geometry calculations */
2994 case XPT_CALC_GEOMETRY:
2996 struct ccb_calc_geometry *ccg = &ccb->ccg;
2997 struct ciss_ldrive *ld;
2999 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3003 ld = &sc->ciss_logical[bus][target];
3006 * Use the cached geometry settings unless the fault tolerance
3009 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3010 u_int32_t secs_per_cylinder;
3013 ccg->secs_per_track = 32;
3014 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3015 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3017 ccg->heads = ld->cl_geometry.heads;
3018 ccg->secs_per_track = ld->cl_geometry.sectors;
3019 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3021 ccb->ccb_h.status = CAM_REQ_CMP;
3025 /* handle path attribute inquiry */
3028 struct ccb_pathinq *cpi = &ccb->cpi;
3031 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3033 cpi->version_num = 1;
3034 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3035 cpi->target_sprt = 0;
3037 cpi->max_target = sc->ciss_cfg->max_logical_supported;
3038 cpi->max_lun = 0; /* 'logical drive' channel only */
3039 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3040 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3041 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN);
3042 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3043 cpi->unit_number = cam_sim_unit(sim);
3044 cpi->bus_id = cam_sim_bus(sim);
3045 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3046 cpi->transport = XPORT_SPI;
3047 cpi->transport_version = 2;
3048 cpi->protocol = PROTO_SCSI;
3049 cpi->protocol_version = SCSI_REV_2;
3050 if (sc->ciss_cfg->max_sg_length == 0) {
3053 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3054 * Confusing bit here. max_sg_length is usually a power of 2. We always
3055 * need to subtract 1 to account for partial pages. Then we need to
3056 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3057 * Add 1 so we can then subtract it out in the assignment to maxio.
3058 * The reason for all these shenanigans is to create a maxio value that
3059 * creates IO operations to volumes that yield consistent operations
3060 * with good performance.
3062 sg_length = sc->ciss_cfg->max_sg_length - 1;
3063 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3065 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3066 ccb->ccb_h.status = CAM_REQ_CMP;
3070 case XPT_GET_TRAN_SETTINGS:
3072 struct ccb_trans_settings *cts = &ccb->cts;
3074 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3075 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3077 bus = cam_sim_bus(sim);
3078 target = cts->ccb_h.target_id;
3080 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3081 /* disconnect always OK */
3082 cts->protocol = PROTO_SCSI;
3083 cts->protocol_version = SCSI_REV_2;
3084 cts->transport = XPORT_SPI;
3085 cts->transport_version = 2;
3087 spi->valid = CTS_SPI_VALID_DISC;
3088 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3090 scsi->valid = CTS_SCSI_VALID_TQ;
3091 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3093 cts->ccb_h.status = CAM_REQ_CMP;
3097 default: /* we can't do this */
3098 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3099 ccb->ccb_h.status = CAM_REQ_INVALID;
3106 /************************************************************************
3107 * Handle a CAM SCSI I/O request.
3110 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3112 struct ciss_softc *sc;
3114 struct ciss_request *cr;
3115 struct ciss_command *cc;
3118 sc = cam_sim_softc(sim);
3119 bus = cam_sim_bus(sim);
3120 target = csio->ccb_h.target_id;
3122 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3124 /* check that the CDB pointer is not to a physical address */
3125 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3126 debug(3, " CDB pointer is to physical address");
3127 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3130 /* abandon aborted ccbs or those that have failed validation */
3131 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3132 debug(3, "abandoning CCB due to abort/validation failure");
3136 /* handle emulation of some SCSI commands ourself */
3137 if (ciss_cam_emulate(sc, csio))
3141 * Get a request to manage this command. If we can't, return the
3142 * ccb, freeze the queue and flag so that we unfreeze it when a
3143 * request completes.
3145 if ((error = ciss_get_request(sc, &cr)) != 0) {
3146 xpt_freeze_simq(sim, 1);
3147 sc->ciss_flags |= CISS_FLAG_BUSY;
3148 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3153 * Build the command.
3157 cr->cr_length = csio->dxfer_len;
3158 cr->cr_complete = ciss_cam_complete;
3159 cr->cr_private = csio;
3162 * Target the right logical volume.
3164 if (CISS_IS_PHYSICAL(bus))
3165 cc->header.address =
3166 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3168 cc->header.address =
3169 sc->ciss_logical[bus][target].cl_address;
3170 cc->cdb.cdb_length = csio->cdb_len;
3171 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3172 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3173 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3174 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3175 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3176 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3177 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3178 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3182 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3184 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3185 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3186 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3188 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3192 * Submit the request to the adapter.
3194 * Note that this may fail if we're unable to map the request (and
3195 * if we ever learn a transport layer other than simple, may fail
3196 * if the adapter rejects the command).
3198 if ((error = ciss_start(cr)) != 0) {
3199 xpt_freeze_simq(sim, 1);
3200 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3201 if (error == EINPROGRESS) {
3204 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3205 ciss_release_request(cr);
3213 /************************************************************************
3214 * Emulate SCSI commands the adapter doesn't handle as we might like.
3217 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3222 target = csio->ccb_h.target_id;
3223 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3224 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3225 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3227 if (CISS_IS_PHYSICAL(bus)) {
3228 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3229 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3230 xpt_done((union ccb *)csio);
3237 * Handle requests for volumes that don't exist or are not online.
3238 * A selection timeout is slightly better than an illegal request.
3239 * Other errors might be better.
3241 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3242 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3243 xpt_done((union ccb *)csio);
3247 /* if we have to fake Synchronise Cache */
3248 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3250 * If this is a Synchronise Cache command, typically issued when
3251 * a device is closed, flush the adapter and complete now.
3253 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3254 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3255 ciss_flush_adapter(sc);
3256 csio->ccb_h.status |= CAM_REQ_CMP;
3257 xpt_done((union ccb *)csio);
3263 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3264 * at least one LUN field to be pre created for us, so snag it and fill in
3265 * the least significant byte indicating 1 LUN here. Emulate the command
3266 * return to shut up warning on console of a CDB error. swb
3268 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3269 csio->data_ptr[3] = 8;
3270 csio->ccb_h.status |= CAM_REQ_CMP;
3271 xpt_done((union ccb *)csio);
3278 /************************************************************************
3279 * Check for possibly-completed commands.
3282 ciss_cam_poll(struct cam_sim *sim)
3285 struct ciss_softc *sc = cam_sim_softc(sim);
3291 ciss_perf_done(sc, &qh);
3294 ciss_complete(sc, &qh);
3297 /************************************************************************
3298 * Handle completion of a command - pass results back through the CCB
3301 ciss_cam_complete(struct ciss_request *cr)
3303 struct ciss_softc *sc;
3304 struct ciss_command *cc;
3305 struct ciss_error_info *ce;
3306 struct ccb_scsiio *csio;
3314 ce = (struct ciss_error_info *)&(cc->sg[0]);
3315 csio = (struct ccb_scsiio *)cr->cr_private;
3318 * Extract status values from request.
3320 ciss_report_request(cr, &command_status, &scsi_status);
3321 csio->scsi_status = scsi_status;
3324 * Handle specific SCSI status values.
3326 switch(scsi_status) {
3327 /* no status due to adapter error */
3329 debug(0, "adapter error");
3330 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3333 /* no status due to command completed OK */
3334 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3335 debug(2, "SCSI_STATUS_OK");
3336 csio->ccb_h.status |= CAM_REQ_CMP;
3339 /* check condition, sense data included */
3340 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3341 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3342 ce->sense_length, ce->residual_count);
3343 bzero(&csio->sense_data, SSD_FULL_SIZE);
3344 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3345 if (csio->sense_len > ce->sense_length)
3346 csio->sense_resid = csio->sense_len - ce->sense_length;
3348 csio->sense_resid = 0;
3349 csio->resid = ce->residual_count;
3350 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3353 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3354 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3355 csio->sense_resid, /*show_errors*/ 1));
3360 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3361 debug(0, "SCSI_STATUS_BUSY");
3362 csio->ccb_h.status |= CAM_SCSI_BUSY;
3366 debug(0, "unknown status 0x%x", csio->scsi_status);
3367 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3371 /* handle post-command fixup */
3372 ciss_cam_complete_fixup(sc, csio);
3374 ciss_release_request(cr);
3375 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3376 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3377 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3378 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3380 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3382 xpt_done((union ccb *)csio);
3385 /********************************************************************************
3386 * Fix up the result of some commands here.
3389 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3391 struct scsi_inquiry_data *inq;
3392 struct ciss_ldrive *cl;
3396 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3397 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3398 if (cdb[0] == INQUIRY &&
3399 (cdb[1] & SI_EVPD) == 0 &&
3400 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3401 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3403 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3404 target = csio->ccb_h.target_id;
3405 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3408 * If the controller is in JBOD mode, there are no logical volumes.
3409 * Let the disks be probed and dealt with via CAM. Else, mask off
3410 * the physical disks and setup the parts of the inq structure for
3411 * the logical volume. swb
3413 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3414 if (CISS_IS_PHYSICAL(bus)) {
3415 if (SID_TYPE(inq) == T_DIRECT)
3416 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3419 cl = &sc->ciss_logical[bus][target];
3421 padstr(inq->vendor, "HP",
3423 padstr(inq->product,
3424 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3426 padstr(inq->revision,
3427 ciss_name_ldrive_status(cl->cl_lstatus->status),
3434 /********************************************************************************
3435 * Name the device at (target)
3437 * XXX is this strictly correct?
3440 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3442 struct cam_periph *periph;
3443 struct cam_path *path;
3446 if (CISS_IS_PHYSICAL(bus))
3449 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3452 if (status == CAM_REQ_CMP) {
3453 xpt_path_lock(path);
3454 periph = cam_periph_find(path, NULL);
3455 xpt_path_unlock(path);
3456 xpt_free_path(path);
3457 if (periph != NULL) {
3458 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3459 periph->periph_name, periph->unit_number);
3463 sc->ciss_logical[bus][target].cl_name[0] = 0;
3467 /************************************************************************
3468 * Periodic status monitoring.
3471 ciss_periodic(void *arg)
3473 struct ciss_softc *sc;
3474 struct ciss_request *cr = NULL;
3475 struct ciss_command *cc = NULL;
3480 sc = (struct ciss_softc *)arg;
3483 * Check the adapter heartbeat.
3485 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3486 sc->ciss_heart_attack++;
3487 debug(0, "adapter heart attack in progress 0x%x/%d",
3488 sc->ciss_heartbeat, sc->ciss_heart_attack);
3489 if (sc->ciss_heart_attack == 3) {
3490 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3491 ciss_disable_adapter(sc);
3495 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3496 sc->ciss_heart_attack = 0;
3497 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3501 * Send the NOP message and wait for a response.
3503 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3505 cr->cr_complete = ciss_nop_complete;
3506 cc->cdb.cdb_length = 1;
3507 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3508 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3509 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3510 cc->cdb.timeout = 0;
3511 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3513 if ((error = ciss_start(cr)) != 0) {
3514 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3519 * If the notify event request has died for some reason, or has
3520 * not started yet, restart it.
3522 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3523 debug(0, "(re)starting Event Notify chain");
3524 ciss_notify_event(sc);
3530 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3534 ciss_nop_complete(struct ciss_request *cr)
3536 struct ciss_softc *sc;
3537 static int first_time = 1;
3540 if (ciss_report_request(cr, NULL, NULL) != 0) {
3541 if (first_time == 1) {
3543 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3547 ciss_release_request(cr);
3550 /************************************************************************
3551 * Disable the adapter.
3553 * The all requests in completed queue is failed with hardware error.
3554 * This will cause failover in a multipath configuration.
3557 ciss_disable_adapter(struct ciss_softc *sc)
3560 struct ciss_request *cr;
3561 struct ciss_command *cc;
3562 struct ciss_error_info *ce;
3565 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3566 pci_disable_busmaster(sc->ciss_dev);
3567 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3570 for (i = 1; i < sc->ciss_max_requests; i++) {
3571 cr = &sc->ciss_request[i];
3572 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3576 ce = (struct ciss_error_info *)&(cc->sg[0]);
3577 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3578 ciss_enqueue_complete(cr, &qh);
3582 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3586 * If the request has a callback, invoke it.
3588 if (cr->cr_complete != NULL) {
3589 cr->cr_complete(cr);
3594 * If someone is sleeping on this request, wake them up.
3596 if (cr->cr_flags & CISS_REQ_SLEEP) {
3597 cr->cr_flags &= ~CISS_REQ_SLEEP;
3604 /************************************************************************
3605 * Request a notification response from the adapter.
3607 * If (cr) is NULL, this is the first request of the adapter, so
3608 * reset the adapter's message pointer and start with the oldest
3609 * message available.
3612 ciss_notify_event(struct ciss_softc *sc)
3614 struct ciss_request *cr;
3615 struct ciss_command *cc;
3616 struct ciss_notify_cdb *cnc;
3621 cr = sc->ciss_periodic_notify;
3623 /* get a request if we don't already have one */
3625 if ((error = ciss_get_request(sc, &cr)) != 0) {
3626 debug(0, "can't get notify event request");
3629 sc->ciss_periodic_notify = cr;
3630 cr->cr_complete = ciss_notify_complete;
3631 debug(1, "acquired request %d", cr->cr_tag);
3635 * Get a databuffer if we don't already have one, note that the
3636 * adapter command wants a larger buffer than the actual
3639 if (cr->cr_data == NULL) {
3640 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3641 debug(0, "can't get notify event request buffer");
3645 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3648 /* re-setup the request's command (since we never release it) XXX overkill*/
3649 ciss_preen_command(cr);
3651 /* (re)build the notify event command */
3653 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3654 cc->header.address.physical.bus = 0;
3655 cc->header.address.physical.target = 0;
3657 cc->cdb.cdb_length = sizeof(*cnc);
3658 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3659 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3660 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3661 cc->cdb.timeout = 0; /* no timeout, we hope */
3663 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3664 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3665 cnc->opcode = CISS_OPCODE_READ;
3666 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3667 cnc->timeout = 0; /* no timeout, we hope */
3668 cnc->synchronous = 0;
3670 cnc->seek_to_oldest = 0;
3671 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3675 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3677 /* submit the request */
3678 error = ciss_start(cr);
3683 if (cr->cr_data != NULL)
3684 free(cr->cr_data, CISS_MALLOC_CLASS);
3685 ciss_release_request(cr);
3687 sc->ciss_periodic_notify = NULL;
3688 debug(0, "can't submit notify event request");
3689 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3691 debug(1, "notify event submitted");
3692 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3697 ciss_notify_complete(struct ciss_request *cr)
3699 struct ciss_command *cc;
3700 struct ciss_notify *cn;
3701 struct ciss_softc *sc;
3707 cn = (struct ciss_notify *)cr->cr_data;
3711 * Report request results, decode status.
3713 ciss_report_request(cr, &command_status, &scsi_status);
3716 * Abort the chain on a fatal error.
3718 * XXX which of these are actually errors?
3720 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3721 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3722 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3723 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3724 ciss_name_command_status(command_status));
3725 ciss_release_request(cr);
3726 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3731 * If the adapter gave us a text message, print it.
3733 if (cn->message[0] != 0)
3734 ciss_printf(sc, "*** %.80s\n", cn->message);
3736 debug(0, "notify event class %d subclass %d detail %d",
3737 cn->class, cn->subclass, cn->detail);
3740 * If the response indicates that the notifier has been aborted,
3741 * release the notifier command.
3743 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3744 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3745 (cn->detail == 1)) {
3746 debug(0, "notifier exiting");
3747 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3748 ciss_release_request(cr);
3749 sc->ciss_periodic_notify = NULL;
3750 wakeup(&sc->ciss_periodic_notify);
3752 /* Handle notify events in a kernel thread */
3753 ciss_enqueue_notify(cr);
3754 sc->ciss_periodic_notify = NULL;
3755 wakeup(&sc->ciss_periodic_notify);
3756 wakeup(&sc->ciss_notify);
3759 * Send a new notify event command, if we're not aborting.
3761 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3762 ciss_notify_event(sc);
3766 /************************************************************************
3767 * Abort the Notify Event chain.
3769 * Note that we can't just abort the command in progress; we have to
3770 * explicitly issue an Abort Notify Event command in order for the
3771 * adapter to clean up correctly.
3773 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3774 * the chain will not restart itself.
3777 ciss_notify_abort(struct ciss_softc *sc)
3779 struct ciss_request *cr;
3780 struct ciss_command *cc;
3781 struct ciss_notify_cdb *cnc;
3782 int error, command_status, scsi_status;
3789 /* verify that there's an outstanding command */
3790 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3793 /* get a command to issue the abort with */
3794 if ((error = ciss_get_request(sc, &cr)))
3797 /* get a buffer for the result */
3798 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3799 debug(0, "can't get notify event request buffer");
3803 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3807 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3808 cc->header.address.physical.bus = 0;
3809 cc->header.address.physical.target = 0;
3810 cc->cdb.cdb_length = sizeof(*cnc);
3811 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3812 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3813 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3814 cc->cdb.timeout = 0; /* no timeout, we hope */
3816 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3817 bzero(cnc, sizeof(*cnc));
3818 cnc->opcode = CISS_OPCODE_WRITE;
3819 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3820 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3822 ciss_print_request(cr);
3826 * Submit the request and wait for it to complete.
3828 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3829 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3836 ciss_report_request(cr, &command_status, &scsi_status);
3837 switch(command_status) {
3838 case CISS_CMD_STATUS_SUCCESS:
3840 case CISS_CMD_STATUS_INVALID_COMMAND:
3842 * Some older adapters don't support the CISS version of this
3843 * command. Fall back to using the BMIC version.
3845 error = ciss_notify_abort_bmic(sc);
3850 case CISS_CMD_STATUS_TARGET_STATUS:
3852 * This can happen if the adapter thinks there wasn't an outstanding
3853 * Notify Event command but we did. We clean up here.
3855 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3856 if (sc->ciss_periodic_notify != NULL)
3857 ciss_release_request(sc->ciss_periodic_notify);
3864 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3865 ciss_name_command_status(command_status));
3871 * Sleep waiting for the notifier command to complete. Note
3872 * that if it doesn't, we may end up in a bad situation, since
3873 * the adapter may deliver it later. Also note that the adapter
3874 * requires the Notify Event command to be cancelled in order to
3875 * maintain internal bookkeeping.
3877 while (sc->ciss_periodic_notify != NULL) {
3878 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3879 if (error == EWOULDBLOCK) {
3880 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3886 /* release the cancel request */
3888 if (cr->cr_data != NULL)
3889 free(cr->cr_data, CISS_MALLOC_CLASS);
3890 ciss_release_request(cr);
3893 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3897 /************************************************************************
3898 * Abort the Notify Event chain using a BMIC command.
3901 ciss_notify_abort_bmic(struct ciss_softc *sc)
3903 struct ciss_request *cr;
3904 int error, command_status;
3911 /* verify that there's an outstanding command */
3912 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3916 * Build a BMIC command to cancel the Notify on Event command.
3918 * Note that we are sending a CISS opcode here. Odd.
3920 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3925 * Submit the request and wait for it to complete.
3927 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3928 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3935 ciss_report_request(cr, &command_status, NULL);
3936 switch(command_status) {
3937 case CISS_CMD_STATUS_SUCCESS:
3940 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3941 ciss_name_command_status(command_status));
3948 ciss_release_request(cr);
3952 /************************************************************************
3953 * Handle rescanning all the logical volumes when a notify event
3954 * causes the drives to come online or offline.
3957 ciss_notify_rescan_logical(struct ciss_softc *sc)
3959 struct ciss_lun_report *cll;
3960 struct ciss_ldrive *ld;
3964 * We must rescan all logical volumes to get the right logical
3967 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3968 sc->ciss_cfg->max_logical_supported);
3972 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3975 * Delete any of the drives which were destroyed by the
3978 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3979 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3980 ld = &sc->ciss_logical[i][j];
3982 if (ld->cl_update == 0)
3985 if (ld->cl_status != CISS_LD_ONLINE) {
3986 ciss_cam_rescan_target(sc, i, j);
3989 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3991 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3993 ld->cl_ldrive = NULL;
3994 ld->cl_lstatus = NULL;
4000 * Scan for new drives.
4002 for (i = 0; i < ndrives; i++) {
4005 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
4006 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
4007 ld = &sc->ciss_logical[bus][target];
4009 if (ld->cl_update == 0)
4013 ld->cl_address = cll->lun[i];
4014 ld->cl_controller = &sc->ciss_controllers[bus];
4015 if (ciss_identify_logical(sc, ld) == 0) {
4016 ciss_cam_rescan_target(sc, bus, target);
4019 free(cll, CISS_MALLOC_CLASS);
4022 /************************************************************************
4023 * Handle a notify event relating to the status of a logical drive.
4025 * XXX need to be able to defer some of these to properly handle
4026 * calling the "ID Physical drive" command, unless the 'extended'
4027 * drive IDs are always in BIG_MAP format.
4030 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4032 struct ciss_ldrive *ld;
4033 int ostatus, bus, target;
4037 bus = cn->device.physical.bus;
4038 target = cn->data.logical_status.logical_drive;
4039 ld = &sc->ciss_logical[bus][target];
4041 switch (cn->subclass) {
4042 case CISS_NOTIFY_LOGICAL_STATUS:
4043 switch (cn->detail) {
4045 ciss_name_device(sc, bus, target);
4046 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4047 cn->data.logical_status.logical_drive, ld->cl_name,
4048 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4049 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4050 cn->data.logical_status.spare_state,
4051 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4054 * Update our idea of the drive's status.
4056 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4057 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4058 if (ld->cl_lstatus != NULL)
4059 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4062 * Have CAM rescan the drive if its status has changed.
4064 if (ostatus != ld->cl_status) {
4066 ciss_notify_rescan_logical(sc);
4071 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4072 ciss_name_device(sc, bus, target);
4073 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4074 cn->data.logical_status.logical_drive, ld->cl_name);
4075 ciss_accept_media(sc, ld);
4078 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4079 ciss_notify_rescan_logical(sc);
4084 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4085 cn->data.rebuild_aborted.logical_drive,
4087 (cn->detail == 2) ? "read" : "write");
4092 case CISS_NOTIFY_LOGICAL_ERROR:
4093 if (cn->detail == 0) {
4094 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4095 cn->data.io_error.logical_drive,
4097 cn->data.io_error.failure_bus,
4098 cn->data.io_error.failure_drive);
4099 /* XXX should we take the drive down at this point, or will we be told? */
4103 case CISS_NOTIFY_LOGICAL_SURFACE:
4104 if (cn->detail == 0)
4105 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4106 cn->data.consistency_completed.logical_drive,
4112 /************************************************************************
4113 * Handle a notify event relating to the status of a physical drive.
4116 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4120 /************************************************************************
4121 * Handle a notify event relating to the status of a physical drive.
4124 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4126 struct ciss_lun_report *cll = NULL;
4129 switch (cn->subclass) {
4130 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4131 case CISS_NOTIFY_HOTPLUG_NONDISK:
4132 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4134 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4136 if (cn->detail == 0) {
4138 * Mark the device offline so that it'll start producing selection
4139 * timeouts to the upper layer.
4141 if ((bus >= 0) && (target >= 0))
4142 sc->ciss_physical[bus][target].cp_online = 0;
4145 * Rescan the physical lun list for new items
4147 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4148 sc->ciss_cfg->max_physical_supported);
4150 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4153 ciss_filter_physical(sc, cll);
4158 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4163 free(cll, CISS_MALLOC_CLASS);
4166 /************************************************************************
4167 * Handle deferred processing of notify events. Notify events may need
4168 * sleep which is unsafe during an interrupt.
4171 ciss_notify_thread(void *arg)
4173 struct ciss_softc *sc;
4174 struct ciss_request *cr;
4175 struct ciss_notify *cn;
4177 sc = (struct ciss_softc *)arg;
4178 mtx_lock(&sc->ciss_mtx);
4181 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4182 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4183 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4186 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4189 cr = ciss_dequeue_notify(sc);
4193 cn = (struct ciss_notify *)cr->cr_data;
4195 switch (cn->class) {
4196 case CISS_NOTIFY_HOTPLUG:
4197 ciss_notify_hotplug(sc, cn);
4199 case CISS_NOTIFY_LOGICAL:
4200 ciss_notify_logical(sc, cn);
4202 case CISS_NOTIFY_PHYSICAL:
4203 ciss_notify_physical(sc, cn);
4207 ciss_release_request(cr);
4210 sc->ciss_notify_thread = NULL;
4211 wakeup(&sc->ciss_notify_thread);
4213 mtx_unlock(&sc->ciss_mtx);
4217 /************************************************************************
4218 * Start the notification kernel thread.
4221 ciss_spawn_notify_thread(struct ciss_softc *sc)
4224 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4225 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4226 device_get_unit(sc->ciss_dev)))
4227 panic("Could not create notify thread\n");
4230 /************************************************************************
4231 * Kill the notification kernel thread.
4234 ciss_kill_notify_thread(struct ciss_softc *sc)
4237 if (sc->ciss_notify_thread == NULL)
4240 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4241 wakeup(&sc->ciss_notify);
4242 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4245 /************************************************************************
4250 ciss_print_request(struct ciss_request *cr)
4252 struct ciss_softc *sc;
4253 struct ciss_command *cc;
4259 ciss_printf(sc, "REQUEST @ %p\n", cr);
4260 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4261 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4262 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4263 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4264 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4265 switch(cc->header.address.mode.mode) {
4266 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4267 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4268 ciss_printf(sc, " physical bus %d target %d\n",
4269 cc->header.address.physical.bus, cc->header.address.physical.target);
4271 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4272 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4275 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4276 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4277 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4278 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4280 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4281 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4282 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4283 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4284 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4285 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4286 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4287 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4289 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4290 /* XXX print error info */
4292 /* since we don't use chained s/g, don't support it here */
4293 for (i = 0; i < cc->header.sg_in_list; i++) {
4295 ciss_printf(sc, " ");
4296 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4297 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4304 /************************************************************************
4305 * Print information about the status of a logical drive.
4308 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4312 if (ld->cl_lstatus == NULL) {
4313 printf("does not exist\n");
4317 /* print drive status */
4318 switch(ld->cl_lstatus->status) {
4319 case CISS_LSTATUS_OK:
4322 case CISS_LSTATUS_INTERIM_RECOVERY:
4323 printf("in interim recovery mode\n");
4325 case CISS_LSTATUS_READY_RECOVERY:
4326 printf("ready to begin recovery\n");
4328 case CISS_LSTATUS_RECOVERING:
4329 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4330 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4331 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4332 bus, target, ld->cl_lstatus->blocks_to_recover);
4334 case CISS_LSTATUS_EXPANDING:
4335 printf("being expanded, %u blocks remaining\n",
4336 ld->cl_lstatus->blocks_to_recover);
4338 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4339 printf("queued for expansion\n");
4341 case CISS_LSTATUS_FAILED:
4342 printf("queued for expansion\n");
4344 case CISS_LSTATUS_WRONG_PDRIVE:
4345 printf("wrong physical drive inserted\n");
4347 case CISS_LSTATUS_MISSING_PDRIVE:
4348 printf("missing a needed physical drive\n");
4350 case CISS_LSTATUS_BECOMING_READY:
4351 printf("becoming ready\n");
4355 /* print failed physical drives */
4356 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4357 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4358 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4361 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4362 ld->cl_lstatus->drive_failure_map[i]);
4367 #include <ddb/ddb.h>
4368 /************************************************************************
4369 * Print information about the controller/driver.
4372 ciss_print_adapter(struct ciss_softc *sc)
4376 ciss_printf(sc, "ADAPTER:\n");
4377 for (i = 0; i < CISSQ_COUNT; i++) {
4378 ciss_printf(sc, "%s %d/%d\n",
4380 i == 1 ? "busy" : "complete",
4381 sc->ciss_qstat[i].q_length,
4382 sc->ciss_qstat[i].q_max);
4384 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4385 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4386 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4388 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4389 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4390 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4391 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4395 /* XXX Should physical drives be printed out here? */
4397 for (i = 1; i < sc->ciss_max_requests; i++)
4398 ciss_print_request(sc->ciss_request + i);
4402 DB_COMMAND(ciss_prt, db_ciss_prt)
4404 struct ciss_softc *sc;
4408 dc = devclass_find("ciss");
4410 printf("%s: can't find devclass!\n", __func__);
4413 maxciss = devclass_get_maxunit(dc);
4414 for (i = 0; i < maxciss; i++) {
4415 sc = devclass_get_softc(dc, i);
4416 ciss_print_adapter(sc);
4421 /************************************************************************
4422 * Return a name for a logical drive status value.
4425 ciss_name_ldrive_status(int status)
4428 case CISS_LSTATUS_OK:
4430 case CISS_LSTATUS_FAILED:
4432 case CISS_LSTATUS_NOT_CONFIGURED:
4433 return("not configured");
4434 case CISS_LSTATUS_INTERIM_RECOVERY:
4435 return("interim recovery");
4436 case CISS_LSTATUS_READY_RECOVERY:
4437 return("ready for recovery");
4438 case CISS_LSTATUS_RECOVERING:
4439 return("recovering");
4440 case CISS_LSTATUS_WRONG_PDRIVE:
4441 return("wrong physical drive inserted");
4442 case CISS_LSTATUS_MISSING_PDRIVE:
4443 return("missing physical drive");
4444 case CISS_LSTATUS_EXPANDING:
4445 return("expanding");
4446 case CISS_LSTATUS_BECOMING_READY:
4447 return("becoming ready");
4448 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4449 return("queued for expansion");
4451 return("unknown status");
4454 /************************************************************************
4455 * Return an online/offline/nonexistent value for a logical drive
4459 ciss_decode_ldrive_status(int status)
4462 case CISS_LSTATUS_NOT_CONFIGURED:
4463 return(CISS_LD_NONEXISTENT);
4465 case CISS_LSTATUS_OK:
4466 case CISS_LSTATUS_INTERIM_RECOVERY:
4467 case CISS_LSTATUS_READY_RECOVERY:
4468 case CISS_LSTATUS_RECOVERING:
4469 case CISS_LSTATUS_EXPANDING:
4470 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4471 return(CISS_LD_ONLINE);
4473 case CISS_LSTATUS_FAILED:
4474 case CISS_LSTATUS_WRONG_PDRIVE:
4475 case CISS_LSTATUS_MISSING_PDRIVE:
4476 case CISS_LSTATUS_BECOMING_READY:
4478 return(CISS_LD_OFFLINE);
4483 /************************************************************************
4484 * Return a name for a logical drive's organisation.
4487 ciss_name_ldrive_org(int org)
4490 case CISS_LDRIVE_RAID0:
4492 case CISS_LDRIVE_RAID1:
4493 return("RAID 1(1+0)");
4494 case CISS_LDRIVE_RAID4:
4496 case CISS_LDRIVE_RAID5:
4498 case CISS_LDRIVE_RAID51:
4500 case CISS_LDRIVE_RAIDADG:
4506 /************************************************************************
4507 * Return a name for a command status value.
4510 ciss_name_command_status(int status)
4513 case CISS_CMD_STATUS_SUCCESS:
4515 case CISS_CMD_STATUS_TARGET_STATUS:
4516 return("target status");
4517 case CISS_CMD_STATUS_DATA_UNDERRUN:
4518 return("data underrun");
4519 case CISS_CMD_STATUS_DATA_OVERRUN:
4520 return("data overrun");
4521 case CISS_CMD_STATUS_INVALID_COMMAND:
4522 return("invalid command");
4523 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4524 return("protocol error");
4525 case CISS_CMD_STATUS_HARDWARE_ERROR:
4526 return("hardware error");
4527 case CISS_CMD_STATUS_CONNECTION_LOST:
4528 return("connection lost");
4529 case CISS_CMD_STATUS_ABORTED:
4531 case CISS_CMD_STATUS_ABORT_FAILED:
4532 return("abort failed");
4533 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4534 return("unsolicited abort");
4535 case CISS_CMD_STATUS_TIMEOUT:
4537 case CISS_CMD_STATUS_UNABORTABLE:
4538 return("unabortable");
4540 return("unknown status");
4543 /************************************************************************
4544 * Handle an open on the control device.
4547 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4549 struct ciss_softc *sc;
4553 sc = (struct ciss_softc *)dev->si_drv1;
4555 /* we might want to veto if someone already has us open */
4557 mtx_lock(&sc->ciss_mtx);
4558 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4559 mtx_unlock(&sc->ciss_mtx);
4563 /************************************************************************
4564 * Handle the last close on the control device.
4567 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4569 struct ciss_softc *sc;
4573 sc = (struct ciss_softc *)dev->si_drv1;
4575 mtx_lock(&sc->ciss_mtx);
4576 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4577 mtx_unlock(&sc->ciss_mtx);
4581 /********************************************************************************
4582 * Handle adapter-specific control operations.
4584 * Note that the API here is compatible with the Linux driver, in order to
4585 * simplify the porting of Compaq's userland tools.
4588 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4590 struct ciss_softc *sc;
4591 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4593 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4594 IOCTL_Command_struct ioc_swab;
4600 sc = (struct ciss_softc *)dev->si_drv1;
4602 mtx_lock(&sc->ciss_mtx);
4605 case CCISS_GETQSTATS:
4607 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4609 switch (cr->cs_item) {
4612 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4613 sizeof(struct ciss_qstat));
4623 case CCISS_GETPCIINFO:
4625 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4627 pis->bus = pci_get_bus(sc->ciss_dev);
4628 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4629 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4630 pci_get_subdevice(sc->ciss_dev);
4635 case CCISS_GETINTINFO:
4637 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4639 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4640 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4645 case CCISS_SETINTINFO:
4647 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4649 if ((cis->delay == 0) && (cis->count == 0)) {
4655 * XXX apparently this is only safe if the controller is idle,
4656 * we should suspend it before doing this.
4658 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4659 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4661 if (ciss_update_config(sc))
4664 /* XXX resume the controller here */
4668 case CCISS_GETNODENAME:
4669 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4670 sizeof(NodeName_type));
4673 case CCISS_SETNODENAME:
4674 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4675 sizeof(NodeName_type));
4676 if (ciss_update_config(sc))
4680 case CCISS_GETHEARTBEAT:
4681 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4684 case CCISS_GETBUSTYPES:
4685 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4688 case CCISS_GETFIRMVER:
4689 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4690 sizeof(FirmwareVer_type));
4693 case CCISS_GETDRIVERVER:
4694 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4697 case CCISS_REVALIDVOLS:
4699 * This is a bit ugly; to do it "right" we really need
4700 * to find any disks that have changed, kick CAM off them,
4701 * then rescan only these disks. It'd be nice if they
4702 * a) told us which disk(s) they were going to play with,
4703 * and b) which ones had arrived. 8(
4708 case CCISS_PASSTHRU32:
4709 ioc_swab.LUN_info = ioc32->LUN_info;
4710 ioc_swab.Request = ioc32->Request;
4711 ioc_swab.error_info = ioc32->error_info;
4712 ioc_swab.buf_size = ioc32->buf_size;
4713 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4718 case CCISS_PASSTHRU:
4719 error = ciss_user_command(sc, ioc);
4723 debug(0, "unknown ioctl 0x%lx", cmd);
4725 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4726 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4727 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4728 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4729 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4730 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4731 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4732 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4733 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4734 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4735 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4741 mtx_unlock(&sc->ciss_mtx);