2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 Michael Smith
5 * Copyright (c) 2004 Paul Saab
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * Common Interface for SCSI-3 Support driver.
35 * CISS claims to provide a common interface between a generic SCSI
36 * transport and an intelligent host adapter.
38 * This driver supports CISS as defined in the document "CISS Command
39 * Interface for SCSI-3 Support Open Specification", Version 1.04,
40 * Valence Number 1, dated 20001127, produced by Compaq Computer
41 * Corporation. This document appears to be a hastily and somewhat
42 * arbitrarlily cut-down version of a larger (and probably even more
43 * chaotic and inconsistent) Compaq internal document. Various
44 * details were also gleaned from Compaq's "cciss" driver for Linux.
46 * We provide a shim layer between the CISS interface and CAM,
47 * offloading most of the queueing and being-a-disk chores onto CAM.
48 * Entry to the driver is via the PCI bus attachment (ciss_probe,
49 * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
50 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
51 * citizens and we have to fake up some responses to get reasonable
52 * behaviour out of them. In addition, the CISS command set is by no
53 * means adequate to support the functionality of a RAID controller,
54 * and thus the supported Compaq adapters utilise portions of the
55 * control protocol from earlier Compaq adapter families.
57 * Note that we only support the "simple" transport layer over PCI.
58 * This interface (ab)uses the I2O register set (specifically the post
59 * queues) to exchange commands with the adapter. Other interfaces
60 * are available, but we aren't supposed to know about them, and it is
61 * dubious whether they would provide major performance improvements
62 * except under extreme load.
64 * Currently the only supported CISS adapters are the Compaq Smart
65 * Array 5* series (5300, 5i, 532). Even with only three adapters,
66 * Compaq still manage to have interface variations.
69 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
70 * well as Paul Saab at Yahoo! for their assistance in making this
73 * More thanks must go to John Cagle at HP for the countless hours
74 * spent making this driver "work" with the MSA* series storage
75 * enclosures. Without his help (and nagging), this driver could not
76 * be used with these enclosures.
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/malloc.h>
82 #include <sys/kernel.h>
86 #include <sys/kthread.h>
87 #include <sys/queue.h>
88 #include <sys/sysctl.h>
91 #include <cam/cam_ccb.h>
92 #include <cam/cam_periph.h>
93 #include <cam/cam_sim.h>
94 #include <cam/cam_xpt_sim.h>
95 #include <cam/scsi/scsi_all.h>
96 #include <cam/scsi/scsi_message.h>
98 #include <machine/bus.h>
99 #include <machine/endian.h>
100 #include <machine/resource.h>
101 #include <sys/rman.h>
103 #include <dev/pci/pcireg.h>
104 #include <dev/pci/pcivar.h>
106 #include <dev/ciss/cissreg.h>
107 #include <dev/ciss/cissio.h>
108 #include <dev/ciss/cissvar.h>
110 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
111 "ciss internal data buffers");
114 static int ciss_lookup(device_t dev);
115 static int ciss_probe(device_t dev);
116 static int ciss_attach(device_t dev);
117 static int ciss_detach(device_t dev);
118 static int ciss_shutdown(device_t dev);
120 /* (de)initialisation functions, control wrappers */
121 static int ciss_init_pci(struct ciss_softc *sc);
122 static int ciss_setup_msix(struct ciss_softc *sc);
123 static int ciss_init_perf(struct ciss_softc *sc);
124 static int ciss_wait_adapter(struct ciss_softc *sc);
125 static int ciss_flush_adapter(struct ciss_softc *sc);
126 static int ciss_init_requests(struct ciss_softc *sc);
127 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
128 int nseg, int error);
129 static int ciss_identify_adapter(struct ciss_softc *sc);
130 static int ciss_init_logical(struct ciss_softc *sc);
131 static int ciss_init_physical(struct ciss_softc *sc);
132 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
133 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
134 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
135 static int ciss_update_config(struct ciss_softc *sc);
136 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
137 static void ciss_init_sysctl(struct ciss_softc *sc);
138 static void ciss_soft_reset(struct ciss_softc *sc);
139 static void ciss_free(struct ciss_softc *sc);
140 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
141 static void ciss_kill_notify_thread(struct ciss_softc *sc);
143 /* request submission/completion */
144 static int ciss_start(struct ciss_request *cr);
145 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
146 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
147 static void ciss_intr(void *arg);
148 static void ciss_perf_intr(void *arg);
149 static void ciss_perf_msi_intr(void *arg);
150 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
151 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
152 static int ciss_synch_request(struct ciss_request *cr, int timeout);
153 static int ciss_poll_request(struct ciss_request *cr, int timeout);
154 static int ciss_wait_request(struct ciss_request *cr, int timeout);
156 static int ciss_abort_request(struct ciss_request *cr);
159 /* request queueing */
160 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
161 static void ciss_preen_command(struct ciss_request *cr);
162 static void ciss_release_request(struct ciss_request *cr);
164 /* request helpers */
165 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
166 int opcode, void **bufp, size_t bufsize);
167 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
170 static int ciss_map_request(struct ciss_request *cr);
171 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
172 int nseg, int error);
173 static void ciss_unmap_request(struct ciss_request *cr);
176 static int ciss_cam_init(struct ciss_softc *sc);
177 static void ciss_cam_rescan_target(struct ciss_softc *sc,
178 int bus, int target);
179 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
180 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
181 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
182 static void ciss_cam_poll(struct cam_sim *sim);
183 static void ciss_cam_complete(struct ciss_request *cr);
184 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
185 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
187 /* periodic status monitoring */
188 static void ciss_periodic(void *arg);
189 static void ciss_nop_complete(struct ciss_request *cr);
190 static void ciss_disable_adapter(struct ciss_softc *sc);
191 static void ciss_notify_event(struct ciss_softc *sc);
192 static void ciss_notify_complete(struct ciss_request *cr);
193 static int ciss_notify_abort(struct ciss_softc *sc);
194 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
195 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
196 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
197 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
199 /* debugging output */
200 static void ciss_print_request(struct ciss_request *cr);
201 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
202 static const char *ciss_name_ldrive_status(int status);
203 static int ciss_decode_ldrive_status(int status);
204 static const char *ciss_name_ldrive_org(int org);
205 static const char *ciss_name_command_status(int status);
210 static device_method_t ciss_methods[] = {
211 /* Device interface */
212 DEVMETHOD(device_probe, ciss_probe),
213 DEVMETHOD(device_attach, ciss_attach),
214 DEVMETHOD(device_detach, ciss_detach),
215 DEVMETHOD(device_shutdown, ciss_shutdown),
219 static driver_t ciss_pci_driver = {
222 sizeof(struct ciss_softc)
226 * Control device interface.
228 static d_open_t ciss_open;
229 static d_close_t ciss_close;
230 static d_ioctl_t ciss_ioctl;
232 static struct cdevsw ciss_cdevsw = {
233 .d_version = D_VERSION,
236 .d_close = ciss_close,
237 .d_ioctl = ciss_ioctl,
242 * This tunable can be set at boot time and controls whether physical devices
243 * that are marked hidden by the firmware should be exposed anyways.
245 static unsigned int ciss_expose_hidden_physical = 0;
246 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
248 static unsigned int ciss_nop_message_heartbeat = 0;
249 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
252 * This tunable can force a particular transport to be used:
255 * 2 : force performant
257 static int ciss_force_transport = 0;
258 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
261 * This tunable can force a particular interrupt delivery method to be used:
266 static int ciss_force_interrupt = 0;
267 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
270 /************************************************************************
271 * CISS adapters amazingly don't have a defined programming interface
272 * value. (One could say some very despairing things about PCI and
273 * people just not getting the general idea.) So we are forced to
274 * stick with matching against subvendor/subdevice, and thus have to
275 * be updated for every new CISS adapter that appears.
277 #define CISS_BOARD_UNKNWON 0
278 #define CISS_BOARD_SA5 1
279 #define CISS_BOARD_SA5B 2
280 #define CISS_BOARD_NOMSI (1<<4)
281 #define CISS_BOARD_SIMPLE (1<<5)
289 } ciss_vendor_data[] = {
290 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
291 "Compaq Smart Array 5300" },
292 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
293 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
294 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
295 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
296 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
297 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
298 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
299 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
300 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
301 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
302 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
303 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
304 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
305 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
306 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
307 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
308 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
309 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
310 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
311 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
312 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
313 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
314 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
315 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
317 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
318 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
319 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
320 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
321 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
323 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
324 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
325 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
326 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
327 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
328 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
329 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
330 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
331 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
332 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
333 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
334 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
335 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
336 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
337 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
338 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
339 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
340 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
341 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
342 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
343 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
344 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
345 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
346 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
347 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
348 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
349 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
350 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
351 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
352 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
353 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
354 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
355 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
356 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
357 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
358 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
359 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" },
360 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
361 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
365 static devclass_t ciss_devclass;
366 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
367 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data,
368 nitems(ciss_vendor_data) - 1);
369 MODULE_DEPEND(ciss, cam, 1, 1, 1);
370 MODULE_DEPEND(ciss, pci, 1, 1, 1);
372 /************************************************************************
373 * Find a match for the device in our list of known adapters.
376 ciss_lookup(device_t dev)
380 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
381 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
382 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
388 /************************************************************************
389 * Match a known CISS adapter.
392 ciss_probe(device_t dev)
396 i = ciss_lookup(dev);
398 device_set_desc(dev, ciss_vendor_data[i].desc);
399 return(BUS_PROBE_DEFAULT);
404 /************************************************************************
405 * Attach the driver to this adapter.
408 ciss_attach(device_t dev)
410 struct ciss_softc *sc;
416 /* print structure/union sizes */
417 debug_struct(ciss_command);
418 debug_struct(ciss_header);
419 debug_union(ciss_device_address);
420 debug_struct(ciss_cdb);
421 debug_struct(ciss_report_cdb);
422 debug_struct(ciss_notify_cdb);
423 debug_struct(ciss_notify);
424 debug_struct(ciss_message_cdb);
425 debug_struct(ciss_error_info_pointer);
426 debug_struct(ciss_error_info);
427 debug_struct(ciss_sg_entry);
428 debug_struct(ciss_config_table);
429 debug_struct(ciss_bmic_cdb);
430 debug_struct(ciss_bmic_id_ldrive);
431 debug_struct(ciss_bmic_id_lstatus);
432 debug_struct(ciss_bmic_id_table);
433 debug_struct(ciss_bmic_id_pdrive);
434 debug_struct(ciss_bmic_blink_pdrive);
435 debug_struct(ciss_bmic_flush_cache);
436 debug_const(CISS_MAX_REQUESTS);
437 debug_const(CISS_MAX_LOGICAL);
438 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
439 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
440 debug_const(CISS_COMMAND_ALLOC_SIZE);
441 debug_const(CISS_COMMAND_SG_LENGTH);
443 debug_type(cciss_pci_info_struct);
444 debug_type(cciss_coalint_struct);
445 debug_type(cciss_coalint_struct);
446 debug_type(NodeName_type);
447 debug_type(NodeName_type);
448 debug_type(Heartbeat_type);
449 debug_type(BusTypes_type);
450 debug_type(FirmwareVer_type);
451 debug_type(DriverVer_type);
452 debug_type(IOCTL_Command_struct);
455 sc = device_get_softc(dev);
457 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
458 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
461 * Do PCI-specific init.
463 if ((error = ciss_init_pci(sc)) != 0)
467 * Initialise driver queues.
470 ciss_initq_notify(sc);
473 * Initialize device sysctls.
475 ciss_init_sysctl(sc);
478 * Initialise command/request pool.
480 if ((error = ciss_init_requests(sc)) != 0)
484 * Get adapter information.
486 if ((error = ciss_identify_adapter(sc)) != 0)
490 * Find all the physical devices.
492 if ((error = ciss_init_physical(sc)) != 0)
496 * Build our private table of logical devices.
498 if ((error = ciss_init_logical(sc)) != 0)
502 * Enable interrupts so that the CAM scan can complete.
504 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
507 * Initialise the CAM interface.
509 if ((error = ciss_cam_init(sc)) != 0)
513 * Start the heartbeat routine and event chain.
518 * Create the control device.
520 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
521 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
522 "ciss%d", device_get_unit(sc->ciss_dev));
523 sc->ciss_dev_t->si_drv1 = sc;
526 * The adapter is running; synchronous commands can now sleep
527 * waiting for an interrupt to signal completion.
529 sc->ciss_flags |= CISS_FLAG_RUNNING;
531 ciss_spawn_notify_thread(sc);
536 /* ciss_free() expects the mutex to be held */
537 mtx_lock(&sc->ciss_mtx);
543 /************************************************************************
544 * Detach the driver from this adapter.
547 ciss_detach(device_t dev)
549 struct ciss_softc *sc = device_get_softc(dev);
553 mtx_lock(&sc->ciss_mtx);
554 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
555 mtx_unlock(&sc->ciss_mtx);
559 /* flush adapter cache */
560 ciss_flush_adapter(sc);
562 /* release all resources. The mutex is released and freed here too. */
568 /************************************************************************
569 * Prepare adapter for system shutdown.
572 ciss_shutdown(device_t dev)
574 struct ciss_softc *sc = device_get_softc(dev);
578 mtx_lock(&sc->ciss_mtx);
579 /* flush adapter cache */
580 ciss_flush_adapter(sc);
582 if (sc->ciss_soft_reset)
584 mtx_unlock(&sc->ciss_mtx);
590 ciss_init_sysctl(struct ciss_softc *sc)
593 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
594 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
595 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
598 /************************************************************************
599 * Perform PCI-specific attachment actions.
602 ciss_init_pci(struct ciss_softc *sc)
604 uintptr_t cbase, csize, cofs;
605 uint32_t method, supported_methods;
606 int error, sqmask, i;
612 * Work out adapter type.
614 i = ciss_lookup(sc->ciss_dev);
616 ciss_printf(sc, "unknown adapter type\n");
620 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
621 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
622 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
623 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
626 * XXX Big hammer, masks/unmasks all possible interrupts. This should
627 * work on all hardware variants. Need to add code to handle the
628 * "controller crashed" interrupt bit that this unmasks.
634 * Allocate register window first (we need this to find the config
638 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
639 if ((sc->ciss_regs_resource =
640 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
641 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
642 ciss_printf(sc, "can't allocate register window\n");
645 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
646 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
649 * Find the BAR holding the config structure. If it's not the one
650 * we already mapped for registers, map it too.
652 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
653 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
654 if ((sc->ciss_cfg_resource =
655 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
656 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
657 ciss_printf(sc, "can't allocate config window\n");
660 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
661 csize = rman_get_end(sc->ciss_cfg_resource) -
662 rman_get_start(sc->ciss_cfg_resource) + 1;
664 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
665 csize = rman_get_end(sc->ciss_regs_resource) -
666 rman_get_start(sc->ciss_regs_resource) + 1;
668 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
671 * Use the base/size/offset values we just calculated to
672 * sanity-check the config structure. If it's OK, point to it.
674 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
675 ciss_printf(sc, "config table outside window\n");
678 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
679 debug(1, "config struct at %p", sc->ciss_cfg);
682 * Calculate the number of request structures/commands we are
683 * going to provide for this adapter.
685 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
688 * Validate the config structure. If we supported other transport
689 * methods, we could select amongst them at this point in time.
691 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
692 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
693 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
694 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
699 * Select the mode of operation, prefer Performant.
701 if (!(sc->ciss_cfg->supported_methods &
702 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
703 ciss_printf(sc, "No supported transport layers: 0x%x\n",
704 sc->ciss_cfg->supported_methods);
707 switch (ciss_force_transport) {
709 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
712 supported_methods = CISS_TRANSPORT_METHOD_PERF;
716 * Override the capabilities of the BOARD and specify SIMPLE
719 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
720 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
722 supported_methods = sc->ciss_cfg->supported_methods;
727 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
728 method = CISS_TRANSPORT_METHOD_PERF;
729 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
730 sc->ciss_cfg->transport_offset);
731 if (ciss_init_perf(sc)) {
732 supported_methods &= ~method;
735 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
736 method = CISS_TRANSPORT_METHOD_SIMPLE;
738 ciss_printf(sc, "No supported transport methods: 0x%x\n",
739 sc->ciss_cfg->supported_methods);
744 * Tell it we're using the low 4GB of RAM. Set the default interrupt
745 * coalescing options.
747 sc->ciss_cfg->requested_method = method;
748 sc->ciss_cfg->command_physlimit = 0;
749 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
750 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
753 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
756 if (ciss_update_config(sc)) {
757 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
758 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
761 if ((sc->ciss_cfg->active_method & method) == 0) {
762 supported_methods &= ~method;
763 if (supported_methods == 0) {
764 ciss_printf(sc, "adapter refuses to go into available transports "
765 "mode (0x%x, 0x%x)\n", supported_methods,
766 sc->ciss_cfg->active_method);
773 * Wait for the adapter to come ready.
775 if ((error = ciss_wait_adapter(sc)) != 0)
778 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
779 * interrupts have a rid of 0, this will be overridden if MSIX is used.
781 sc->ciss_irq_rid[0] = 0;
782 if (method == CISS_TRANSPORT_METHOD_PERF) {
783 ciss_printf(sc, "PERFORMANT Transport\n");
784 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
785 intr = ciss_perf_msi_intr;
787 intr = ciss_perf_intr;
789 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
790 * Unfortunately, there is no good way to know if this is a SAS
791 * controller. Hopefully enabling this bit universally will work OK.
792 * It seems to work fine for SA6i controllers.
794 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
797 ciss_printf(sc, "SIMPLE Transport\n");
798 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
799 if (ciss_force_interrupt == 2)
800 /* If this fails, we automatically revert to INTx */
802 sc->ciss_perf = NULL;
804 sc->ciss_interrupt_mask = sqmask;
808 * Turn off interrupts before we go routing anything.
810 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
813 * Allocate and set up our interrupt.
815 if ((sc->ciss_irq_resource =
816 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
817 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
818 ciss_printf(sc, "can't allocate interrupt\n");
822 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
823 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
825 ciss_printf(sc, "can't set up interrupt\n");
830 * Allocate the parent bus DMA tag appropriate for our PCI
833 * Note that "simple" adapters can only address within a 32-bit
836 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
837 1, 0, /* alignment, boundary */
838 BUS_SPACE_MAXADDR, /* lowaddr */
839 BUS_SPACE_MAXADDR, /* highaddr */
840 NULL, NULL, /* filter, filterarg */
841 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
842 BUS_SPACE_UNRESTRICTED, /* nsegments */
843 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
845 NULL, NULL, /* lockfunc, lockarg */
846 &sc->ciss_parent_dmat)) {
847 ciss_printf(sc, "can't allocate parent DMA tag\n");
852 * Create DMA tag for mapping buffers into adapter-addressable
855 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
856 1, 0, /* alignment, boundary */
857 BUS_SPACE_MAXADDR, /* lowaddr */
858 BUS_SPACE_MAXADDR, /* highaddr */
859 NULL, NULL, /* filter, filterarg */
860 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
861 CISS_MAX_SG_ELEMENTS, /* nsegments */
862 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
863 BUS_DMA_ALLOCNOW, /* flags */
864 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
865 &sc->ciss_buffer_dmat)) {
866 ciss_printf(sc, "can't allocate buffer DMA tag\n");
872 /************************************************************************
873 * Setup MSI/MSIX operation (Performant only)
874 * Four interrupts are available, but we only use 1 right now. If MSI-X
875 * isn't avaialble, try using MSI instead.
878 ciss_setup_msix(struct ciss_softc *sc)
882 /* Weed out devices that don't actually support MSI */
883 i = ciss_lookup(sc->ciss_dev);
884 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
888 * Only need to use the minimum number of MSI vectors, as the driver
889 * doesn't support directed MSIX interrupts.
891 val = pci_msix_count(sc->ciss_dev);
892 if (val < CISS_MSI_COUNT) {
893 val = pci_msi_count(sc->ciss_dev);
894 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
895 if (val < CISS_MSI_COUNT)
898 val = MIN(val, CISS_MSI_COUNT);
899 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
900 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
906 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
907 (val != 1) ? "s" : "");
909 for (i = 0; i < val; i++)
910 sc->ciss_irq_rid[i] = i + 1;
916 /************************************************************************
917 * Setup the Performant structures.
920 ciss_init_perf(struct ciss_softc *sc)
922 struct ciss_perf_config *pc = sc->ciss_perf;
926 * Create the DMA tag for the reply queue.
928 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
929 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
930 1, 0, /* alignment, boundary */
931 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
932 BUS_SPACE_MAXADDR, /* highaddr */
933 NULL, NULL, /* filter, filterarg */
934 reply_size, 1, /* maxsize, nsegments */
935 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
937 NULL, NULL, /* lockfunc, lockarg */
938 &sc->ciss_reply_dmat)) {
939 ciss_printf(sc, "can't allocate reply DMA tag\n");
943 * Allocate memory and make it available for DMA.
945 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
946 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
947 ciss_printf(sc, "can't allocate reply memory\n");
950 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
951 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
952 bzero(sc->ciss_reply, reply_size);
954 sc->ciss_cycle = 0x1;
958 * Preload the fetch table with common command sizes. This allows the
959 * hardware to not waste bus cycles for typical i/o commands, but also not
960 * tax the driver to be too exact in choosing sizes. The table is optimized
961 * for page-aligned i/o's, but since most i/o comes from the various pagers,
962 * it's a reasonable assumption to make.
964 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
965 pc->fetch_count[CISS_SG_FETCH_1] =
966 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
967 pc->fetch_count[CISS_SG_FETCH_2] =
968 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
969 pc->fetch_count[CISS_SG_FETCH_4] =
970 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
971 pc->fetch_count[CISS_SG_FETCH_8] =
972 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
973 pc->fetch_count[CISS_SG_FETCH_16] =
974 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
975 pc->fetch_count[CISS_SG_FETCH_32] =
976 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
977 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
979 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
980 pc->rq_count = 1; /* XXX Hardcode for a single queue */
983 pc->rq[0].rq_addr_hi = 0x0;
984 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
989 /************************************************************************
990 * Wait for the adapter to come ready.
993 ciss_wait_adapter(struct ciss_softc *sc)
1000 * Wait for the adapter to come ready.
1002 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
1003 ciss_printf(sc, "waiting for adapter to come ready...\n");
1004 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1005 DELAY(1000000); /* one second */
1007 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1015 /************************************************************************
1016 * Flush the adapter cache.
1019 ciss_flush_adapter(struct ciss_softc *sc)
1021 struct ciss_request *cr;
1022 struct ciss_bmic_flush_cache *cbfc;
1023 int error, command_status;
1031 * Build a BMIC request to flush the cache. We don't disable
1032 * it, as we may be going to do more I/O (eg. we are emulating
1033 * the Synchronise Cache command).
1035 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1039 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1040 (void **)&cbfc, sizeof(*cbfc))) != 0)
1044 * Submit the request and wait for it to complete.
1046 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1047 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1054 ciss_report_request(cr, &command_status, NULL);
1055 switch(command_status) {
1056 case CISS_CMD_STATUS_SUCCESS:
1059 ciss_printf(sc, "error flushing cache (%s)\n",
1060 ciss_name_command_status(command_status));
1067 free(cbfc, CISS_MALLOC_CLASS);
1069 ciss_release_request(cr);
1074 ciss_soft_reset(struct ciss_softc *sc)
1076 struct ciss_request *cr = NULL;
1077 struct ciss_command *cc;
1080 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1081 /* only reset proxy controllers */
1082 if (sc->ciss_controllers[i].physical.bus == 0)
1085 if ((error = ciss_get_request(sc, &cr)) != 0)
1088 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1093 cc->header.address = sc->ciss_controllers[i];
1095 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1098 ciss_release_request(cr);
1102 ciss_printf(sc, "error resetting controller (%d)\n", error);
1105 ciss_release_request(cr);
1108 /************************************************************************
1109 * Allocate memory for the adapter command structures, initialise
1110 * the request structures.
1112 * Note that the entire set of commands are allocated in a single
1116 ciss_init_requests(struct ciss_softc *sc)
1118 struct ciss_request *cr;
1124 ciss_printf(sc, "using %d of %d available commands\n",
1125 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1128 * Create the DMA tag for commands.
1130 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1131 32, 0, /* alignment, boundary */
1132 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1133 BUS_SPACE_MAXADDR, /* highaddr */
1134 NULL, NULL, /* filter, filterarg */
1135 CISS_COMMAND_ALLOC_SIZE *
1136 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1137 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1139 NULL, NULL, /* lockfunc, lockarg */
1140 &sc->ciss_command_dmat)) {
1141 ciss_printf(sc, "can't allocate command DMA tag\n");
1145 * Allocate memory and make it available for DMA.
1147 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1148 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1149 ciss_printf(sc, "can't allocate command memory\n");
1152 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1153 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1154 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1155 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1158 * Set up the request and command structures, push requests onto
1161 for (i = 1; i < sc->ciss_max_requests; i++) {
1162 cr = &sc->ciss_request[i];
1165 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1166 CISS_COMMAND_ALLOC_SIZE * i);
1167 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1168 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1169 ciss_enqueue_free(cr);
1175 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1180 *addr = segs[0].ds_addr;
1183 /************************************************************************
1184 * Identify the adapter, print some information about it.
1187 ciss_identify_adapter(struct ciss_softc *sc)
1189 struct ciss_request *cr;
1190 int error, command_status;
1197 * Get a request, allocate storage for the adapter data.
1199 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1200 (void **)&sc->ciss_id,
1201 sizeof(*sc->ciss_id))) != 0)
1205 * Submit the request and wait for it to complete.
1207 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1208 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1215 ciss_report_request(cr, &command_status, NULL);
1216 switch(command_status) {
1217 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1219 case CISS_CMD_STATUS_DATA_UNDERRUN:
1220 case CISS_CMD_STATUS_DATA_OVERRUN:
1221 ciss_printf(sc, "data over/underrun reading adapter information\n");
1223 ciss_printf(sc, "error reading adapter information (%s)\n",
1224 ciss_name_command_status(command_status));
1229 /* sanity-check reply */
1230 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1231 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1237 /* XXX later revisions may not need this */
1238 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1241 /* XXX only really required for old 5300 adapters? */
1242 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1245 * Earlier controller specs do not contain these config
1246 * entries, so assume that a 0 means its old and assign
1247 * these values to the defaults that were established
1248 * when this driver was developed for them
1250 if (sc->ciss_cfg->max_logical_supported == 0)
1251 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1252 if (sc->ciss_cfg->max_physical_supported == 0)
1253 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1254 /* print information */
1256 ciss_printf(sc, " %d logical drive%s configured\n",
1257 sc->ciss_id->configured_logical_drives,
1258 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1259 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1260 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1262 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1263 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1264 ciss_printf(sc, " supported I/O methods 0x%b\n",
1265 sc->ciss_cfg->supported_methods,
1266 "\20\1READY\2simple\3performant\4MEMQ\n");
1267 ciss_printf(sc, " active I/O method 0x%b\n",
1268 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1269 ciss_printf(sc, " 4G page base 0x%08x\n",
1270 sc->ciss_cfg->command_physlimit);
1271 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1272 sc->ciss_cfg->interrupt_coalesce_delay);
1273 ciss_printf(sc, " interrupt coalesce count %d\n",
1274 sc->ciss_cfg->interrupt_coalesce_count);
1275 ciss_printf(sc, " max outstanding commands %d\n",
1276 sc->ciss_cfg->max_outstanding_commands);
1277 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1278 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1279 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1280 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1281 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1282 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1283 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1284 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1285 "Available" : "Unavailable");
1286 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1287 "Enabled" : "Disabled");
1292 if (sc->ciss_id != NULL) {
1293 free(sc->ciss_id, CISS_MALLOC_CLASS);
1298 ciss_release_request(cr);
1302 /************************************************************************
1303 * Helper routine for generating a list of logical and physical luns.
1305 static struct ciss_lun_report *
1306 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1308 struct ciss_request *cr;
1309 struct ciss_command *cc;
1310 struct ciss_report_cdb *crc;
1311 struct ciss_lun_report *cll;
1322 * Get a request, allocate storage for the address list.
1324 if ((error = ciss_get_request(sc, &cr)) != 0)
1326 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1327 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1328 ciss_printf(sc, "can't allocate memory for lun report\n");
1334 * Build the Report Logical/Physical LUNs command.
1338 cr->cr_length = report_size;
1339 cr->cr_flags = CISS_REQ_DATAIN;
1341 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1342 cc->header.address.physical.bus = 0;
1343 cc->header.address.physical.target = 0;
1344 cc->cdb.cdb_length = sizeof(*crc);
1345 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1346 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1347 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1348 cc->cdb.timeout = 30; /* XXX better suggestions? */
1350 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1351 bzero(crc, sizeof(*crc));
1352 crc->opcode = opcode;
1353 crc->length = htonl(report_size); /* big-endian field */
1354 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1357 * Submit the request and wait for it to complete. (timeout
1358 * here should be much greater than above)
1360 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1361 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1366 * Check response. Note that data over/underrun is OK.
1368 ciss_report_request(cr, &command_status, NULL);
1369 switch(command_status) {
1370 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1371 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1373 case CISS_CMD_STATUS_DATA_OVERRUN:
1374 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1375 sc->ciss_cfg->max_logical_supported);
1378 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1379 ciss_name_command_status(command_status));
1383 ciss_release_request(cr);
1388 ciss_release_request(cr);
1389 if (error && cll != NULL) {
1390 free(cll, CISS_MALLOC_CLASS);
1396 /************************************************************************
1397 * Find logical drives on the adapter.
1400 ciss_init_logical(struct ciss_softc *sc)
1402 struct ciss_lun_report *cll;
1403 int error = 0, i, j;
1408 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1409 sc->ciss_cfg->max_logical_supported);
1415 /* sanity-check reply */
1416 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1417 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1418 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1419 ndrives, sc->ciss_cfg->max_logical_supported);
1425 * Save logical drive information.
1428 ciss_printf(sc, "%d logical drive%s\n",
1429 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1433 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1434 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1435 if (sc->ciss_logical == NULL) {
1440 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1441 sc->ciss_logical[i] =
1442 malloc(sc->ciss_cfg->max_logical_supported *
1443 sizeof(struct ciss_ldrive),
1444 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1445 if (sc->ciss_logical[i] == NULL) {
1450 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1451 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1455 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1457 struct ciss_ldrive *ld;
1460 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1461 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1462 ld = &sc->ciss_logical[bus][target];
1464 ld->cl_address = cll->lun[i];
1465 ld->cl_controller = &sc->ciss_controllers[bus];
1466 if (ciss_identify_logical(sc, ld) != 0)
1469 * If the drive has had media exchanged, we should bring it online.
1471 if (ld->cl_lstatus->media_exchanged)
1472 ciss_accept_media(sc, ld);
1479 free(cll, CISS_MALLOC_CLASS);
1484 ciss_init_physical(struct ciss_softc *sc)
1486 struct ciss_lun_report *cll;
1496 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1497 sc->ciss_cfg->max_physical_supported);
1503 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1506 ciss_printf(sc, "%d physical device%s\n",
1507 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1511 * Figure out the bus mapping.
1512 * Logical buses include both the local logical bus for local arrays and
1513 * proxy buses for remote arrays. Physical buses are numbered by the
1514 * controller and represent physical buses that hold physical devices.
1515 * We shift these bus numbers so that everything fits into a single flat
1516 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1517 * numbers, and the physical bus numbers are shifted to be above that.
1518 * This results in the various driver arrays being indexed as follows:
1520 * ciss_controllers[] - indexed by logical bus
1521 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1522 * being shifted by 32.
1523 * ciss_logical[][] - indexed by logical bus
1524 * ciss_physical[][] - indexed by physical bus
1526 * XXX This is getting more and more hackish. CISS really doesn't play
1527 * well with a standard SCSI model; devices are addressed via magic
1528 * cookies, not via b/t/l addresses. Since there is no way to store
1529 * the cookie in the CAM device object, we have to keep these lookup
1530 * tables handy so that the devices can be found quickly at the cost
1531 * of wasting memory and having a convoluted lookup scheme. This
1532 * driver should probably be converted to block interface.
1535 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1536 * controller. A proxy controller is another physical controller
1537 * behind the primary PCI controller. We need to know about this
1538 * so that BMIC commands can be properly targeted. There can be
1539 * proxy controllers attached to a single PCI controller, so
1540 * find the highest numbered one so the array can be properly
1543 sc->ciss_max_logical_bus = 1;
1544 for (i = 0; i < nphys; i++) {
1545 if (cll->lun[i].physical.extra_address == 0) {
1546 bus = cll->lun[i].physical.bus;
1547 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1549 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1550 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1554 sc->ciss_controllers =
1555 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1556 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1558 if (sc->ciss_controllers == NULL) {
1559 ciss_printf(sc, "Could not allocate memory for controller map\n");
1564 /* setup a map of controller addresses */
1565 for (i = 0; i < nphys; i++) {
1566 if (cll->lun[i].physical.extra_address == 0) {
1567 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1572 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1573 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1574 if (sc->ciss_physical == NULL) {
1575 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1580 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1581 sc->ciss_physical[i] =
1582 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1583 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1584 if (sc->ciss_physical[i] == NULL) {
1585 ciss_printf(sc, "Could not allocate memory for target map\n");
1591 ciss_filter_physical(sc, cll);
1595 free(cll, CISS_MALLOC_CLASS);
1601 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1607 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1608 for (i = 0; i < nphys; i++) {
1609 if (cll->lun[i].physical.extra_address == 0)
1613 * Filter out devices that we don't want. Level 3 LUNs could
1614 * probably be supported, but the docs don't give enough of a
1617 * The mode field of the physical address is likely set to have
1618 * hard disks masked out. Honor it unless the user has overridden
1619 * us with the tunable. We also munge the inquiry data for these
1620 * disks so that they only show up as passthrough devices. Keeping
1621 * them visible in this fashion is useful for doing things like
1622 * flashing firmware.
1624 ea = cll->lun[i].physical.extra_address;
1625 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1626 (CISS_EXTRA_MODE2(ea) == 0x3))
1628 if ((ciss_expose_hidden_physical == 0) &&
1629 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1633 * Note: CISS firmware numbers physical busses starting at '1', not
1634 * '0'. This numbering is internal to the firmware and is only
1635 * used as a hint here.
1637 bus = CISS_EXTRA_BUS2(ea) - 1;
1638 target = CISS_EXTRA_TARGET2(ea);
1639 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1640 sc->ciss_physical[bus][target].cp_online = 1;
1647 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1649 struct ciss_request *cr;
1650 struct ciss_command *cc;
1651 struct scsi_inquiry *inq;
1657 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1659 if ((error = ciss_get_request(sc, &cr)) != 0)
1663 cr->cr_data = &ld->cl_geometry;
1664 cr->cr_length = sizeof(ld->cl_geometry);
1665 cr->cr_flags = CISS_REQ_DATAIN;
1667 cc->header.address = ld->cl_address;
1668 cc->cdb.cdb_length = 6;
1669 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1670 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1671 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1672 cc->cdb.timeout = 30;
1674 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1675 inq->opcode = INQUIRY;
1676 inq->byte2 = SI_EVPD;
1677 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1678 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1681 ciss_printf(sc, "error getting geometry (%d)\n", error);
1685 ciss_report_request(cr, &command_status, NULL);
1686 switch(command_status) {
1687 case CISS_CMD_STATUS_SUCCESS:
1688 case CISS_CMD_STATUS_DATA_UNDERRUN:
1690 case CISS_CMD_STATUS_DATA_OVERRUN:
1691 ciss_printf(sc, "WARNING: Data overrun\n");
1694 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1695 ciss_name_command_status(command_status));
1701 ciss_release_request(cr);
1704 /************************************************************************
1705 * Identify a logical drive, initialise state related to it.
1708 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1710 struct ciss_request *cr;
1711 struct ciss_command *cc;
1712 struct ciss_bmic_cdb *cbc;
1713 int error, command_status;
1720 * Build a BMIC request to fetch the drive ID.
1722 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1723 (void **)&ld->cl_ldrive,
1724 sizeof(*ld->cl_ldrive))) != 0)
1727 cc->header.address = *ld->cl_controller; /* target controller */
1728 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1729 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1732 * Submit the request and wait for it to complete.
1734 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1735 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1742 ciss_report_request(cr, &command_status, NULL);
1743 switch(command_status) {
1744 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1746 case CISS_CMD_STATUS_DATA_UNDERRUN:
1747 case CISS_CMD_STATUS_DATA_OVERRUN:
1748 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1750 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1751 ciss_name_command_status(command_status));
1755 ciss_release_request(cr);
1759 * Build a CISS BMIC command to get the logical drive status.
1761 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1765 * Get the logical drive geometry.
1767 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1771 * Print the drive's basic characteristics.
1774 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1775 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1776 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1777 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1778 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1779 ld->cl_ldrive->block_size));
1781 ciss_print_ldrive(sc, ld);
1785 /* make the drive not-exist */
1786 ld->cl_status = CISS_LD_NONEXISTENT;
1787 if (ld->cl_ldrive != NULL) {
1788 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1789 ld->cl_ldrive = NULL;
1791 if (ld->cl_lstatus != NULL) {
1792 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1793 ld->cl_lstatus = NULL;
1797 ciss_release_request(cr);
1802 /************************************************************************
1803 * Get status for a logical drive.
1805 * XXX should we also do this in response to Test Unit Ready?
1808 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1810 struct ciss_request *cr;
1811 struct ciss_command *cc;
1812 struct ciss_bmic_cdb *cbc;
1813 int error, command_status;
1816 * Build a CISS BMIC command to get the logical drive status.
1818 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1819 (void **)&ld->cl_lstatus,
1820 sizeof(*ld->cl_lstatus))) != 0)
1823 cc->header.address = *ld->cl_controller; /* target controller */
1824 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1825 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1828 * Submit the request and wait for it to complete.
1830 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1831 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1838 ciss_report_request(cr, &command_status, NULL);
1839 switch(command_status) {
1840 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1842 case CISS_CMD_STATUS_DATA_UNDERRUN:
1843 case CISS_CMD_STATUS_DATA_OVERRUN:
1844 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1846 ciss_printf(sc, "error reading logical drive status (%s)\n",
1847 ciss_name_command_status(command_status));
1853 * Set the drive's summary status based on the returned status.
1855 * XXX testing shows that a failed JBOD drive comes back at next
1856 * boot in "queued for expansion" mode. WTF?
1858 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1862 ciss_release_request(cr);
1866 /************************************************************************
1867 * Notify the adapter of a config update.
1870 ciss_update_config(struct ciss_softc *sc)
1876 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1877 for (i = 0; i < 1000; i++) {
1878 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1879 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1887 /************************************************************************
1888 * Accept new media into a logical drive.
1890 * XXX The drive has previously been offline; it would be good if we
1891 * could make sure it's not open right now.
1894 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1896 struct ciss_request *cr;
1897 struct ciss_command *cc;
1898 struct ciss_bmic_cdb *cbc;
1900 int error = 0, ldrive;
1902 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1904 debug(0, "bringing logical drive %d back online", ldrive);
1907 * Build a CISS BMIC command to bring the drive back online.
1909 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1913 cc->header.address = *ld->cl_controller; /* target controller */
1914 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1915 cbc->log_drive = ldrive;
1918 * Submit the request and wait for it to complete.
1920 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1921 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1928 ciss_report_request(cr, &command_status, NULL);
1929 switch(command_status) {
1930 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1931 /* we should get a logical drive status changed event here */
1934 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1935 ciss_name_command_status(command_status));
1941 ciss_release_request(cr);
1945 /************************************************************************
1946 * Release adapter resources.
1949 ciss_free(struct ciss_softc *sc)
1951 struct ciss_request *cr;
1956 /* we're going away */
1957 sc->ciss_flags |= CISS_FLAG_ABORTING;
1959 /* terminate the periodic heartbeat routine */
1960 callout_stop(&sc->ciss_periodic);
1962 /* cancel the Event Notify chain */
1963 ciss_notify_abort(sc);
1965 ciss_kill_notify_thread(sc);
1967 /* disconnect from CAM */
1968 if (sc->ciss_cam_sim) {
1969 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1970 if (sc->ciss_cam_sim[i]) {
1971 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1972 cam_sim_free(sc->ciss_cam_sim[i], 0);
1975 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1976 CISS_PHYSICAL_BASE; i++) {
1977 if (sc->ciss_cam_sim[i]) {
1978 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1979 cam_sim_free(sc->ciss_cam_sim[i], 0);
1982 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1984 if (sc->ciss_cam_devq)
1985 cam_simq_free(sc->ciss_cam_devq);
1987 /* remove the control device */
1988 mtx_unlock(&sc->ciss_mtx);
1989 if (sc->ciss_dev_t != NULL)
1990 destroy_dev(sc->ciss_dev_t);
1992 /* Final cleanup of the callout. */
1993 callout_drain(&sc->ciss_periodic);
1994 mtx_destroy(&sc->ciss_mtx);
1996 /* free the controller data */
1997 if (sc->ciss_id != NULL)
1998 free(sc->ciss_id, CISS_MALLOC_CLASS);
2000 /* release I/O resources */
2001 if (sc->ciss_regs_resource != NULL)
2002 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2003 sc->ciss_regs_rid, sc->ciss_regs_resource);
2004 if (sc->ciss_cfg_resource != NULL)
2005 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2006 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2007 if (sc->ciss_intr != NULL)
2008 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2009 if (sc->ciss_irq_resource != NULL)
2010 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2011 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2013 pci_release_msi(sc->ciss_dev);
2015 while ((cr = ciss_dequeue_free(sc)) != NULL)
2016 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2017 if (sc->ciss_buffer_dmat)
2018 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2020 /* destroy command memory and DMA tag */
2021 if (sc->ciss_command != NULL) {
2022 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2023 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2025 if (sc->ciss_command_dmat)
2026 bus_dma_tag_destroy(sc->ciss_command_dmat);
2028 if (sc->ciss_reply) {
2029 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2030 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2032 if (sc->ciss_reply_dmat)
2033 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2035 /* destroy DMA tags */
2036 if (sc->ciss_parent_dmat)
2037 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2038 if (sc->ciss_logical) {
2039 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2040 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2041 if (sc->ciss_logical[i][j].cl_ldrive)
2042 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2043 if (sc->ciss_logical[i][j].cl_lstatus)
2044 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2046 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2048 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2051 if (sc->ciss_physical) {
2052 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2053 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2054 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2057 if (sc->ciss_controllers)
2058 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2062 /************************************************************************
2063 * Give a command to the adapter.
2065 * Note that this uses the simple transport layer directly. If we
2066 * want to add support for other layers, we'll need a switch of some
2069 * Note that the simple transport layer has no way of refusing a
2070 * command; we only have as many request structures as the adapter
2071 * supports commands, so we don't have to check (this presumes that
2072 * the adapter can handle commands as fast as we throw them at it).
2075 ciss_start(struct ciss_request *cr)
2077 struct ciss_command *cc; /* XXX debugging only */
2081 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2084 * Map the request's data.
2086 if ((error = ciss_map_request(cr)))
2090 ciss_print_request(cr);
2096 /************************************************************************
2097 * Fetch completed request(s) from the adapter, queue them for
2098 * completion handling.
2100 * Note that this uses the simple transport layer directly. If we
2101 * want to add support for other layers, we'll need a switch of some
2104 * Note that the simple transport mechanism does not require any
2105 * reentrancy protection; the OPQ read is atomic. If there is a
2106 * chance of a race with something else that might move the request
2107 * off the busy list, then we will have to lock against that
2108 * (eg. timeouts, etc.)
2111 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2113 struct ciss_request *cr;
2114 struct ciss_command *cc;
2115 u_int32_t tag, index;
2120 * Loop quickly taking requests from the adapter and moving them
2121 * to the completed queue.
2125 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2126 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2129 debug(2, "completed command %d%s", index,
2130 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2131 if (index >= sc->ciss_max_requests) {
2132 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2135 cr = &(sc->ciss_request[index]);
2137 cc->header.host_tag = tag; /* not updated by adapter */
2138 ciss_enqueue_complete(cr, qh);
2144 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2146 struct ciss_request *cr;
2147 struct ciss_command *cc;
2148 u_int32_t tag, index;
2153 * Loop quickly taking requests from the adapter and moving them
2154 * to the completed queue.
2157 tag = sc->ciss_reply[sc->ciss_rqidx];
2158 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2161 debug(2, "completed command %d%s\n", index,
2162 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2163 if (index < sc->ciss_max_requests) {
2164 cr = &(sc->ciss_request[index]);
2166 cc->header.host_tag = tag; /* not updated by adapter */
2167 ciss_enqueue_complete(cr, qh);
2169 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2171 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2173 sc->ciss_cycle ^= 1;
2179 /************************************************************************
2180 * Take an interrupt from the adapter.
2183 ciss_intr(void *arg)
2186 struct ciss_softc *sc = (struct ciss_softc *)arg;
2189 * The only interrupt we recognise indicates that there are
2190 * entries in the outbound post queue.
2194 mtx_lock(&sc->ciss_mtx);
2195 ciss_complete(sc, &qh);
2196 mtx_unlock(&sc->ciss_mtx);
2200 ciss_perf_intr(void *arg)
2202 struct ciss_softc *sc = (struct ciss_softc *)arg;
2204 /* Clear the interrupt and flush the bridges. Docs say that the flush
2205 * needs to be done twice, which doesn't seem right.
2207 CISS_TL_PERF_CLEAR_INT(sc);
2208 CISS_TL_PERF_FLUSH_INT(sc);
2210 ciss_perf_msi_intr(sc);
2214 ciss_perf_msi_intr(void *arg)
2217 struct ciss_softc *sc = (struct ciss_softc *)arg;
2220 ciss_perf_done(sc, &qh);
2221 mtx_lock(&sc->ciss_mtx);
2222 ciss_complete(sc, &qh);
2223 mtx_unlock(&sc->ciss_mtx);
2227 /************************************************************************
2228 * Process completed requests.
2230 * Requests can be completed in three fashions:
2232 * - by invoking a callback function (cr_complete is non-null)
2233 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2234 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2237 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2239 struct ciss_request *cr;
2244 * Loop taking requests off the completed queue and performing
2245 * completion processing on them.
2248 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2250 ciss_unmap_request(cr);
2252 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2253 ciss_printf(sc, "WARNING: completing non-busy request\n");
2254 cr->cr_flags &= ~CISS_REQ_BUSY;
2257 * If the request has a callback, invoke it.
2259 if (cr->cr_complete != NULL) {
2260 cr->cr_complete(cr);
2265 * If someone is sleeping on this request, wake them up.
2267 if (cr->cr_flags & CISS_REQ_SLEEP) {
2268 cr->cr_flags &= ~CISS_REQ_SLEEP;
2274 * If someone is polling this request for completion, signal.
2276 if (cr->cr_flags & CISS_REQ_POLL) {
2277 cr->cr_flags &= ~CISS_REQ_POLL;
2282 * Give up and throw the request back on the free queue. This
2283 * should never happen; resources will probably be lost.
2285 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2286 ciss_enqueue_free(cr);
2290 /************************************************************************
2291 * Report on the completion status of a request, and pass back SCSI
2292 * and command status values.
2295 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2297 struct ciss_command *cc;
2298 struct ciss_error_info *ce;
2303 ce = (struct ciss_error_info *)&(cc->sg[0]);
2306 * We don't consider data under/overrun an error for the Report
2307 * Logical/Physical LUNs commands.
2309 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2310 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2311 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2312 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2313 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2314 (cc->cdb.cdb[0] == INQUIRY))) {
2315 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2316 debug(2, "ignoring irrelevant under/overrun error");
2320 * Check the command's error bit, if clear, there's no status and
2323 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2324 if (scsi_status != NULL)
2325 *scsi_status = SCSI_STATUS_OK;
2326 if (command_status != NULL)
2327 *command_status = CISS_CMD_STATUS_SUCCESS;
2330 if (command_status != NULL)
2331 *command_status = ce->command_status;
2332 if (scsi_status != NULL) {
2333 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2334 *scsi_status = ce->scsi_status;
2340 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2341 ce->command_status, ciss_name_command_status(ce->command_status),
2343 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2344 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2345 ce->additional_error_info.invalid_command.offense_size,
2346 ce->additional_error_info.invalid_command.offense_offset,
2347 ce->additional_error_info.invalid_command.offense_value,
2352 ciss_print_request(cr);
2357 /************************************************************************
2358 * Issue a request and don't return until it's completed.
2360 * Depending on adapter status, we may poll or sleep waiting for
2364 ciss_synch_request(struct ciss_request *cr, int timeout)
2366 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2367 return(ciss_wait_request(cr, timeout));
2369 return(ciss_poll_request(cr, timeout));
2373 /************************************************************************
2374 * Issue a request and poll for completion.
2376 * Timeout in milliseconds.
2379 ciss_poll_request(struct ciss_request *cr, int timeout)
2382 struct ciss_softc *sc;
2389 cr->cr_flags |= CISS_REQ_POLL;
2390 if ((error = ciss_start(cr)) != 0)
2395 ciss_perf_done(sc, &qh);
2398 ciss_complete(sc, &qh);
2399 if (!(cr->cr_flags & CISS_REQ_POLL))
2402 } while (timeout-- >= 0);
2403 return(EWOULDBLOCK);
2406 /************************************************************************
2407 * Issue a request and sleep waiting for completion.
2409 * Timeout in milliseconds. Note that a spurious wakeup will reset
2413 ciss_wait_request(struct ciss_request *cr, int timeout)
2419 cr->cr_flags |= CISS_REQ_SLEEP;
2420 if ((error = ciss_start(cr)) != 0)
2423 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2424 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2425 SBT_1MS * timeout, 0, 0);
2431 /************************************************************************
2432 * Abort a request. Note that a potential exists here to race the
2433 * request being completed; the caller must deal with this.
2436 ciss_abort_request(struct ciss_request *ar)
2438 struct ciss_request *cr;
2439 struct ciss_command *cc;
2440 struct ciss_message_cdb *cmc;
2446 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2449 /* build the abort command */
2451 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2452 cc->header.address.physical.target = 0;
2453 cc->header.address.physical.bus = 0;
2454 cc->cdb.cdb_length = sizeof(*cmc);
2455 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2456 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2457 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2458 cc->cdb.timeout = 30;
2460 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2461 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2462 cmc->type = CISS_MESSAGE_ABORT_TASK;
2463 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2466 * Send the request and wait for a response. If we believe we
2467 * aborted the request OK, clear the flag that indicates it's
2470 error = ciss_synch_request(cr, 35 * 1000);
2472 error = ciss_report_request(cr, NULL, NULL);
2473 ciss_release_request(cr);
2480 /************************************************************************
2481 * Fetch and initialise a request
2484 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2486 struct ciss_request *cr;
2491 * Get a request and clean it up.
2493 if ((cr = ciss_dequeue_free(sc)) == NULL)
2498 cr->cr_complete = NULL;
2499 cr->cr_private = NULL;
2500 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2502 ciss_preen_command(cr);
2508 ciss_preen_command(struct ciss_request *cr)
2510 struct ciss_command *cc;
2514 * Clean up the command structure.
2516 * Note that we set up the error_info structure here, since the
2517 * length can be overwritten by any command.
2520 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2521 cc->header.sg_total = 0;
2522 cc->header.host_tag = cr->cr_tag << 2;
2523 cc->header.host_tag_zeroes = 0;
2524 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2525 cmdphys = cr->cr_ccphys;
2526 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2527 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2530 /************************************************************************
2531 * Release a request to the free list.
2534 ciss_release_request(struct ciss_request *cr)
2536 struct ciss_softc *sc;
2542 /* release the request to the free queue */
2543 ciss_requeue_free(cr);
2546 /************************************************************************
2547 * Allocate a request that will be used to send a BMIC command. Do some
2548 * of the common setup here to avoid duplicating it everywhere else.
2551 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2552 int opcode, void **bufp, size_t bufsize)
2554 struct ciss_request *cr;
2555 struct ciss_command *cc;
2556 struct ciss_bmic_cdb *cbc;
2569 if ((error = ciss_get_request(sc, &cr)) != 0)
2573 * Allocate data storage if requested, determine the data direction.
2576 if ((bufsize > 0) && (bufp != NULL)) {
2577 if (*bufp == NULL) {
2578 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2584 dataout = 1; /* we are given a buffer, so we are writing */
2589 * Build a CISS BMIC command to get the logical drive ID.
2592 cr->cr_length = bufsize;
2594 cr->cr_flags = CISS_REQ_DATAIN;
2597 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2598 cc->header.address.physical.bus = 0;
2599 cc->header.address.physical.target = 0;
2600 cc->cdb.cdb_length = sizeof(*cbc);
2601 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2602 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2603 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2604 cc->cdb.timeout = 0;
2606 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2607 bzero(cbc, sizeof(*cbc));
2608 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2609 cbc->bmic_opcode = opcode;
2610 cbc->size = htons((u_int16_t)bufsize);
2615 ciss_release_request(cr);
2618 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2624 /************************************************************************
2625 * Handle a command passed in from userspace.
2628 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2630 struct ciss_request *cr;
2631 struct ciss_command *cc;
2632 struct ciss_error_info *ce;
2642 while (ciss_get_request(sc, &cr) != 0)
2643 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2647 * Allocate an in-kernel databuffer if required, copy in user data.
2649 mtx_unlock(&sc->ciss_mtx);
2650 cr->cr_length = ioc->buf_size;
2651 if (ioc->buf_size > 0) {
2652 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2656 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2657 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2663 * Build the request based on the user command.
2665 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2666 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2668 /* XXX anything else to populate here? */
2669 mtx_lock(&sc->ciss_mtx);
2674 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2675 debug(0, "request failed - %d", error);
2680 * Check to see if the command succeeded.
2682 ce = (struct ciss_error_info *)&(cc->sg[0]);
2683 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2684 bzero(ce, sizeof(*ce));
2687 * Copy the results back to the user.
2689 bcopy(ce, &ioc->error_info, sizeof(*ce));
2690 mtx_unlock(&sc->ciss_mtx);
2691 if ((ioc->buf_size > 0) &&
2692 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2693 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2701 mtx_lock(&sc->ciss_mtx);
2704 if ((cr != NULL) && (cr->cr_data != NULL))
2705 free(cr->cr_data, CISS_MALLOC_CLASS);
2707 ciss_release_request(cr);
2711 /************************************************************************
2712 * Map a request into bus-visible space, initialise the scatter/gather
2716 ciss_map_request(struct ciss_request *cr)
2718 struct ciss_softc *sc;
2725 /* check that mapping is necessary */
2726 if (cr->cr_flags & CISS_REQ_MAPPED)
2729 cr->cr_flags |= CISS_REQ_MAPPED;
2731 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2732 BUS_DMASYNC_PREWRITE);
2734 if (cr->cr_data != NULL) {
2735 if (cr->cr_flags & CISS_REQ_CCB)
2736 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2737 cr->cr_datamap, cr->cr_data,
2738 ciss_request_map_helper, cr, 0);
2740 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2741 cr->cr_data, cr->cr_length,
2742 ciss_request_map_helper, cr, 0);
2747 * Post the command to the adapter.
2749 cr->cr_sg_tag = CISS_SG_NONE;
2750 cr->cr_flags |= CISS_REQ_BUSY;
2752 CISS_TL_PERF_POST_CMD(sc, cr);
2754 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2761 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2763 struct ciss_command *cc;
2764 struct ciss_request *cr;
2765 struct ciss_softc *sc;
2770 cr = (struct ciss_request *)arg;
2774 for (i = 0; i < nseg; i++) {
2775 cc->sg[i].address = segs[i].ds_addr;
2776 cc->sg[i].length = segs[i].ds_len;
2777 cc->sg[i].extension = 0;
2779 /* we leave the s/g table entirely within the command */
2780 cc->header.sg_in_list = nseg;
2781 cc->header.sg_total = nseg;
2783 if (cr->cr_flags & CISS_REQ_DATAIN)
2784 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2785 if (cr->cr_flags & CISS_REQ_DATAOUT)
2786 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2789 cr->cr_sg_tag = CISS_SG_NONE;
2791 cr->cr_sg_tag = CISS_SG_1;
2793 cr->cr_sg_tag = CISS_SG_2;
2795 cr->cr_sg_tag = CISS_SG_4;
2797 cr->cr_sg_tag = CISS_SG_8;
2798 else if (nseg <= 16)
2799 cr->cr_sg_tag = CISS_SG_16;
2800 else if (nseg <= 32)
2801 cr->cr_sg_tag = CISS_SG_32;
2803 cr->cr_sg_tag = CISS_SG_MAX;
2806 * Post the command to the adapter.
2808 cr->cr_flags |= CISS_REQ_BUSY;
2810 CISS_TL_PERF_POST_CMD(sc, cr);
2812 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2815 /************************************************************************
2816 * Unmap a request from bus-visible space.
2819 ciss_unmap_request(struct ciss_request *cr)
2821 struct ciss_softc *sc;
2827 /* check that unmapping is necessary */
2828 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2831 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2832 BUS_DMASYNC_POSTWRITE);
2834 if (cr->cr_data == NULL)
2837 if (cr->cr_flags & CISS_REQ_DATAIN)
2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2839 if (cr->cr_flags & CISS_REQ_DATAOUT)
2840 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2842 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2844 cr->cr_flags &= ~CISS_REQ_MAPPED;
2847 /************************************************************************
2848 * Attach the driver to CAM.
2850 * We put all the logical drives on a single SCSI bus.
2853 ciss_cam_init(struct ciss_softc *sc)
2860 * Allocate a devq. We can reuse this for the masked physical
2861 * devices if we decide to export these as well.
2863 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2864 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2871 * This naturally wastes a bit of memory. The alternative is to allocate
2872 * and register each bus as it is found, and then track them on a linked
2873 * list. Unfortunately, the driver has a few places where it needs to
2874 * look up the SIM based solely on bus number, and it's unclear whether
2875 * a list traversal would work for these situations.
2877 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2878 CISS_PHYSICAL_BASE);
2879 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2880 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2881 if (sc->ciss_cam_sim == NULL) {
2882 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2886 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2887 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2889 device_get_unit(sc->ciss_dev),
2892 sc->ciss_max_requests - 2,
2893 sc->ciss_cam_devq)) == NULL) {
2894 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2899 * Register bus with this SIM.
2901 mtx_lock(&sc->ciss_mtx);
2902 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2903 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2904 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2905 mtx_unlock(&sc->ciss_mtx);
2909 mtx_unlock(&sc->ciss_mtx);
2912 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2913 CISS_PHYSICAL_BASE; i++) {
2914 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2916 device_get_unit(sc->ciss_dev),
2918 sc->ciss_max_requests - 2,
2919 sc->ciss_cam_devq)) == NULL) {
2920 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2924 mtx_lock(&sc->ciss_mtx);
2925 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2926 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2927 mtx_unlock(&sc->ciss_mtx);
2930 mtx_unlock(&sc->ciss_mtx);
2936 /************************************************************************
2937 * Initiate a rescan of the 'logical devices' SIM
2940 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2946 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2947 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2951 if (xpt_create_path(&ccb->ccb_h.path, NULL,
2952 cam_sim_path(sc->ciss_cam_sim[bus]),
2953 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2954 ciss_printf(sc, "rescan failed (can't create path)\n");
2959 /* scan is now in progress */
2962 /************************************************************************
2963 * Handle requests coming from CAM
2966 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2968 struct ciss_softc *sc;
2969 struct ccb_scsiio *csio;
2973 sc = cam_sim_softc(sim);
2974 bus = cam_sim_bus(sim);
2975 csio = (struct ccb_scsiio *)&ccb->csio;
2976 target = csio->ccb_h.target_id;
2977 physical = CISS_IS_PHYSICAL(bus);
2979 switch (ccb->ccb_h.func_code) {
2981 /* perform SCSI I/O */
2983 if (!ciss_cam_action_io(sim, csio))
2987 /* perform geometry calculations */
2988 case XPT_CALC_GEOMETRY:
2990 struct ccb_calc_geometry *ccg = &ccb->ccg;
2991 struct ciss_ldrive *ld;
2993 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2997 ld = &sc->ciss_logical[bus][target];
3000 * Use the cached geometry settings unless the fault tolerance
3003 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3004 u_int32_t secs_per_cylinder;
3007 ccg->secs_per_track = 32;
3008 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3009 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3011 ccg->heads = ld->cl_geometry.heads;
3012 ccg->secs_per_track = ld->cl_geometry.sectors;
3013 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3015 ccb->ccb_h.status = CAM_REQ_CMP;
3019 /* handle path attribute inquiry */
3022 struct ccb_pathinq *cpi = &ccb->cpi;
3025 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3027 cpi->version_num = 1;
3028 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3029 cpi->target_sprt = 0;
3031 cpi->max_target = sc->ciss_cfg->max_logical_supported;
3032 cpi->max_lun = 0; /* 'logical drive' channel only */
3033 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3034 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3035 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN);
3036 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3037 cpi->unit_number = cam_sim_unit(sim);
3038 cpi->bus_id = cam_sim_bus(sim);
3039 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3040 cpi->transport = XPORT_SPI;
3041 cpi->transport_version = 2;
3042 cpi->protocol = PROTO_SCSI;
3043 cpi->protocol_version = SCSI_REV_2;
3044 if (sc->ciss_cfg->max_sg_length == 0) {
3047 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3048 * Confusing bit here. max_sg_length is usually a power of 2. We always
3049 * need to subtract 1 to account for partial pages. Then we need to
3050 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3051 * Add 1 so we can then subtract it out in the assignment to maxio.
3052 * The reason for all these shenanigans is to create a maxio value that
3053 * creates IO operations to volumes that yield consistent operations
3054 * with good performance.
3056 sg_length = sc->ciss_cfg->max_sg_length - 1;
3057 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3059 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3060 ccb->ccb_h.status = CAM_REQ_CMP;
3064 case XPT_GET_TRAN_SETTINGS:
3066 struct ccb_trans_settings *cts = &ccb->cts;
3068 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3069 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3071 bus = cam_sim_bus(sim);
3072 target = cts->ccb_h.target_id;
3074 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3075 /* disconnect always OK */
3076 cts->protocol = PROTO_SCSI;
3077 cts->protocol_version = SCSI_REV_2;
3078 cts->transport = XPORT_SPI;
3079 cts->transport_version = 2;
3081 spi->valid = CTS_SPI_VALID_DISC;
3082 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3084 scsi->valid = CTS_SCSI_VALID_TQ;
3085 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3087 cts->ccb_h.status = CAM_REQ_CMP;
3091 default: /* we can't do this */
3092 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3093 ccb->ccb_h.status = CAM_REQ_INVALID;
3100 /************************************************************************
3101 * Handle a CAM SCSI I/O request.
3104 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3106 struct ciss_softc *sc;
3108 struct ciss_request *cr;
3109 struct ciss_command *cc;
3112 sc = cam_sim_softc(sim);
3113 bus = cam_sim_bus(sim);
3114 target = csio->ccb_h.target_id;
3116 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3118 /* check that the CDB pointer is not to a physical address */
3119 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3120 debug(3, " CDB pointer is to physical address");
3121 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3124 /* abandon aborted ccbs or those that have failed validation */
3125 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3126 debug(3, "abandoning CCB due to abort/validation failure");
3130 /* handle emulation of some SCSI commands ourself */
3131 if (ciss_cam_emulate(sc, csio))
3135 * Get a request to manage this command. If we can't, return the
3136 * ccb, freeze the queue and flag so that we unfreeze it when a
3137 * request completes.
3139 if ((error = ciss_get_request(sc, &cr)) != 0) {
3140 xpt_freeze_simq(sim, 1);
3141 sc->ciss_flags |= CISS_FLAG_BUSY;
3142 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3147 * Build the command.
3151 cr->cr_length = csio->dxfer_len;
3152 cr->cr_complete = ciss_cam_complete;
3153 cr->cr_private = csio;
3156 * Target the right logical volume.
3158 if (CISS_IS_PHYSICAL(bus))
3159 cc->header.address =
3160 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3162 cc->header.address =
3163 sc->ciss_logical[bus][target].cl_address;
3164 cc->cdb.cdb_length = csio->cdb_len;
3165 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3166 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3167 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3168 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3169 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3170 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3171 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3172 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3176 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3178 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3179 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3180 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3182 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3186 * Submit the request to the adapter.
3188 * Note that this may fail if we're unable to map the request (and
3189 * if we ever learn a transport layer other than simple, may fail
3190 * if the adapter rejects the command).
3192 if ((error = ciss_start(cr)) != 0) {
3193 xpt_freeze_simq(sim, 1);
3194 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3195 if (error == EINPROGRESS) {
3198 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3199 ciss_release_request(cr);
3207 /************************************************************************
3208 * Emulate SCSI commands the adapter doesn't handle as we might like.
3211 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3216 target = csio->ccb_h.target_id;
3217 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3218 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3219 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3221 if (CISS_IS_PHYSICAL(bus)) {
3222 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3223 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3224 xpt_done((union ccb *)csio);
3231 * Handle requests for volumes that don't exist or are not online.
3232 * A selection timeout is slightly better than an illegal request.
3233 * Other errors might be better.
3235 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3236 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3237 xpt_done((union ccb *)csio);
3241 /* if we have to fake Synchronise Cache */
3242 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3244 * If this is a Synchronise Cache command, typically issued when
3245 * a device is closed, flush the adapter and complete now.
3247 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3248 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3249 ciss_flush_adapter(sc);
3250 csio->ccb_h.status |= CAM_REQ_CMP;
3251 xpt_done((union ccb *)csio);
3257 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3258 * at least one LUN field to be pre created for us, so snag it and fill in
3259 * the least significant byte indicating 1 LUN here. Emulate the command
3260 * return to shut up warning on console of a CDB error. swb
3262 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3263 csio->data_ptr[3] = 8;
3264 csio->ccb_h.status |= CAM_REQ_CMP;
3265 xpt_done((union ccb *)csio);
3272 /************************************************************************
3273 * Check for possibly-completed commands.
3276 ciss_cam_poll(struct cam_sim *sim)
3279 struct ciss_softc *sc = cam_sim_softc(sim);
3285 ciss_perf_done(sc, &qh);
3288 ciss_complete(sc, &qh);
3291 /************************************************************************
3292 * Handle completion of a command - pass results back through the CCB
3295 ciss_cam_complete(struct ciss_request *cr)
3297 struct ciss_softc *sc;
3298 struct ciss_command *cc;
3299 struct ciss_error_info *ce;
3300 struct ccb_scsiio *csio;
3308 ce = (struct ciss_error_info *)&(cc->sg[0]);
3309 csio = (struct ccb_scsiio *)cr->cr_private;
3312 * Extract status values from request.
3314 ciss_report_request(cr, &command_status, &scsi_status);
3315 csio->scsi_status = scsi_status;
3318 * Handle specific SCSI status values.
3320 switch(scsi_status) {
3321 /* no status due to adapter error */
3323 debug(0, "adapter error");
3324 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3327 /* no status due to command completed OK */
3328 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3329 debug(2, "SCSI_STATUS_OK");
3330 csio->ccb_h.status |= CAM_REQ_CMP;
3333 /* check condition, sense data included */
3334 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3335 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3336 ce->sense_length, ce->residual_count);
3337 bzero(&csio->sense_data, SSD_FULL_SIZE);
3338 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3339 if (csio->sense_len > ce->sense_length)
3340 csio->sense_resid = csio->sense_len - ce->sense_length;
3342 csio->sense_resid = 0;
3343 csio->resid = ce->residual_count;
3344 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3347 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3348 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3349 csio->sense_resid, /*show_errors*/ 1));
3354 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3355 debug(0, "SCSI_STATUS_BUSY");
3356 csio->ccb_h.status |= CAM_SCSI_BUSY;
3360 debug(0, "unknown status 0x%x", csio->scsi_status);
3361 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3365 /* handle post-command fixup */
3366 ciss_cam_complete_fixup(sc, csio);
3368 ciss_release_request(cr);
3369 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3370 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3371 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3372 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3374 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3376 xpt_done((union ccb *)csio);
3379 /********************************************************************************
3380 * Fix up the result of some commands here.
3383 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3385 struct scsi_inquiry_data *inq;
3386 struct ciss_ldrive *cl;
3390 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3391 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3392 if (cdb[0] == INQUIRY &&
3393 (cdb[1] & SI_EVPD) == 0 &&
3394 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3395 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3397 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3398 target = csio->ccb_h.target_id;
3399 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3402 * If the controller is in JBOD mode, there are no logical volumes.
3403 * Let the disks be probed and dealt with via CAM. Else, mask off
3404 * the physical disks and setup the parts of the inq structure for
3405 * the logical volume. swb
3407 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3408 if (CISS_IS_PHYSICAL(bus)) {
3409 if (SID_TYPE(inq) == T_DIRECT)
3410 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3413 cl = &sc->ciss_logical[bus][target];
3415 padstr(inq->vendor, "HP",
3417 padstr(inq->product,
3418 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3420 padstr(inq->revision,
3421 ciss_name_ldrive_status(cl->cl_lstatus->status),
3428 /********************************************************************************
3429 * Name the device at (target)
3431 * XXX is this strictly correct?
3434 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3436 struct cam_periph *periph;
3437 struct cam_path *path;
3440 if (CISS_IS_PHYSICAL(bus))
3443 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3446 if (status == CAM_REQ_CMP) {
3447 xpt_path_lock(path);
3448 periph = cam_periph_find(path, NULL);
3449 xpt_path_unlock(path);
3450 xpt_free_path(path);
3451 if (periph != NULL) {
3452 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3453 periph->periph_name, periph->unit_number);
3457 sc->ciss_logical[bus][target].cl_name[0] = 0;
3461 /************************************************************************
3462 * Periodic status monitoring.
3465 ciss_periodic(void *arg)
3467 struct ciss_softc *sc;
3468 struct ciss_request *cr = NULL;
3469 struct ciss_command *cc = NULL;
3474 sc = (struct ciss_softc *)arg;
3477 * Check the adapter heartbeat.
3479 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3480 sc->ciss_heart_attack++;
3481 debug(0, "adapter heart attack in progress 0x%x/%d",
3482 sc->ciss_heartbeat, sc->ciss_heart_attack);
3483 if (sc->ciss_heart_attack == 3) {
3484 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3485 ciss_disable_adapter(sc);
3489 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3490 sc->ciss_heart_attack = 0;
3491 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3495 * Send the NOP message and wait for a response.
3497 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3499 cr->cr_complete = ciss_nop_complete;
3500 cc->cdb.cdb_length = 1;
3501 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3502 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3503 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3504 cc->cdb.timeout = 0;
3505 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3507 if ((error = ciss_start(cr)) != 0) {
3508 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3513 * If the notify event request has died for some reason, or has
3514 * not started yet, restart it.
3516 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3517 debug(0, "(re)starting Event Notify chain");
3518 ciss_notify_event(sc);
3524 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3528 ciss_nop_complete(struct ciss_request *cr)
3530 struct ciss_softc *sc;
3531 static int first_time = 1;
3534 if (ciss_report_request(cr, NULL, NULL) != 0) {
3535 if (first_time == 1) {
3537 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3541 ciss_release_request(cr);
3544 /************************************************************************
3545 * Disable the adapter.
3547 * The all requests in completed queue is failed with hardware error.
3548 * This will cause failover in a multipath configuration.
3551 ciss_disable_adapter(struct ciss_softc *sc)
3554 struct ciss_request *cr;
3555 struct ciss_command *cc;
3556 struct ciss_error_info *ce;
3559 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3560 pci_disable_busmaster(sc->ciss_dev);
3561 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3563 for (i = 1; i < sc->ciss_max_requests; i++) {
3564 cr = &sc->ciss_request[i];
3565 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3569 ce = (struct ciss_error_info *)&(cc->sg[0]);
3570 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3571 ciss_enqueue_complete(cr, &qh);
3575 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3579 * If the request has a callback, invoke it.
3581 if (cr->cr_complete != NULL) {
3582 cr->cr_complete(cr);
3587 * If someone is sleeping on this request, wake them up.
3589 if (cr->cr_flags & CISS_REQ_SLEEP) {
3590 cr->cr_flags &= ~CISS_REQ_SLEEP;
3597 /************************************************************************
3598 * Request a notification response from the adapter.
3600 * If (cr) is NULL, this is the first request of the adapter, so
3601 * reset the adapter's message pointer and start with the oldest
3602 * message available.
3605 ciss_notify_event(struct ciss_softc *sc)
3607 struct ciss_request *cr;
3608 struct ciss_command *cc;
3609 struct ciss_notify_cdb *cnc;
3614 cr = sc->ciss_periodic_notify;
3616 /* get a request if we don't already have one */
3618 if ((error = ciss_get_request(sc, &cr)) != 0) {
3619 debug(0, "can't get notify event request");
3622 sc->ciss_periodic_notify = cr;
3623 cr->cr_complete = ciss_notify_complete;
3624 debug(1, "acquired request %d", cr->cr_tag);
3628 * Get a databuffer if we don't already have one, note that the
3629 * adapter command wants a larger buffer than the actual
3632 if (cr->cr_data == NULL) {
3633 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3634 debug(0, "can't get notify event request buffer");
3638 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3641 /* re-setup the request's command (since we never release it) XXX overkill*/
3642 ciss_preen_command(cr);
3644 /* (re)build the notify event command */
3646 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3647 cc->header.address.physical.bus = 0;
3648 cc->header.address.physical.target = 0;
3650 cc->cdb.cdb_length = sizeof(*cnc);
3651 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3652 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3653 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3654 cc->cdb.timeout = 0; /* no timeout, we hope */
3656 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3657 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3658 cnc->opcode = CISS_OPCODE_READ;
3659 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3660 cnc->timeout = 0; /* no timeout, we hope */
3661 cnc->synchronous = 0;
3663 cnc->seek_to_oldest = 0;
3664 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3668 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3670 /* submit the request */
3671 error = ciss_start(cr);
3676 if (cr->cr_data != NULL)
3677 free(cr->cr_data, CISS_MALLOC_CLASS);
3678 ciss_release_request(cr);
3680 sc->ciss_periodic_notify = NULL;
3681 debug(0, "can't submit notify event request");
3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3684 debug(1, "notify event submitted");
3685 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3690 ciss_notify_complete(struct ciss_request *cr)
3692 struct ciss_command *cc;
3693 struct ciss_notify *cn;
3694 struct ciss_softc *sc;
3700 cn = (struct ciss_notify *)cr->cr_data;
3704 * Report request results, decode status.
3706 ciss_report_request(cr, &command_status, &scsi_status);
3709 * Abort the chain on a fatal error.
3711 * XXX which of these are actually errors?
3713 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3714 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3715 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3716 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3717 ciss_name_command_status(command_status));
3718 ciss_release_request(cr);
3719 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3724 * If the adapter gave us a text message, print it.
3726 if (cn->message[0] != 0)
3727 ciss_printf(sc, "*** %.80s\n", cn->message);
3729 debug(0, "notify event class %d subclass %d detail %d",
3730 cn->class, cn->subclass, cn->detail);
3733 * If the response indicates that the notifier has been aborted,
3734 * release the notifier command.
3736 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3737 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3738 (cn->detail == 1)) {
3739 debug(0, "notifier exiting");
3740 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3741 ciss_release_request(cr);
3742 sc->ciss_periodic_notify = NULL;
3743 wakeup(&sc->ciss_periodic_notify);
3745 /* Handle notify events in a kernel thread */
3746 ciss_enqueue_notify(cr);
3747 sc->ciss_periodic_notify = NULL;
3748 wakeup(&sc->ciss_periodic_notify);
3749 wakeup(&sc->ciss_notify);
3752 * Send a new notify event command, if we're not aborting.
3754 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3755 ciss_notify_event(sc);
3759 /************************************************************************
3760 * Abort the Notify Event chain.
3762 * Note that we can't just abort the command in progress; we have to
3763 * explicitly issue an Abort Notify Event command in order for the
3764 * adapter to clean up correctly.
3766 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3767 * the chain will not restart itself.
3770 ciss_notify_abort(struct ciss_softc *sc)
3772 struct ciss_request *cr;
3773 struct ciss_command *cc;
3774 struct ciss_notify_cdb *cnc;
3775 int error, command_status, scsi_status;
3782 /* verify that there's an outstanding command */
3783 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3786 /* get a command to issue the abort with */
3787 if ((error = ciss_get_request(sc, &cr)))
3790 /* get a buffer for the result */
3791 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3792 debug(0, "can't get notify event request buffer");
3796 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3800 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3801 cc->header.address.physical.bus = 0;
3802 cc->header.address.physical.target = 0;
3803 cc->cdb.cdb_length = sizeof(*cnc);
3804 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3805 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3806 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3807 cc->cdb.timeout = 0; /* no timeout, we hope */
3809 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3810 bzero(cnc, sizeof(*cnc));
3811 cnc->opcode = CISS_OPCODE_WRITE;
3812 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3813 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3815 ciss_print_request(cr);
3818 * Submit the request and wait for it to complete.
3820 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3821 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3828 ciss_report_request(cr, &command_status, &scsi_status);
3829 switch(command_status) {
3830 case CISS_CMD_STATUS_SUCCESS:
3832 case CISS_CMD_STATUS_INVALID_COMMAND:
3834 * Some older adapters don't support the CISS version of this
3835 * command. Fall back to using the BMIC version.
3837 error = ciss_notify_abort_bmic(sc);
3842 case CISS_CMD_STATUS_TARGET_STATUS:
3844 * This can happen if the adapter thinks there wasn't an outstanding
3845 * Notify Event command but we did. We clean up here.
3847 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3848 if (sc->ciss_periodic_notify != NULL)
3849 ciss_release_request(sc->ciss_periodic_notify);
3856 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3857 ciss_name_command_status(command_status));
3863 * Sleep waiting for the notifier command to complete. Note
3864 * that if it doesn't, we may end up in a bad situation, since
3865 * the adapter may deliver it later. Also note that the adapter
3866 * requires the Notify Event command to be cancelled in order to
3867 * maintain internal bookkeeping.
3869 while (sc->ciss_periodic_notify != NULL) {
3870 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3871 if (error == EWOULDBLOCK) {
3872 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3878 /* release the cancel request */
3880 if (cr->cr_data != NULL)
3881 free(cr->cr_data, CISS_MALLOC_CLASS);
3882 ciss_release_request(cr);
3885 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3889 /************************************************************************
3890 * Abort the Notify Event chain using a BMIC command.
3893 ciss_notify_abort_bmic(struct ciss_softc *sc)
3895 struct ciss_request *cr;
3896 int error, command_status;
3903 /* verify that there's an outstanding command */
3904 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3908 * Build a BMIC command to cancel the Notify on Event command.
3910 * Note that we are sending a CISS opcode here. Odd.
3912 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3917 * Submit the request and wait for it to complete.
3919 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3920 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3927 ciss_report_request(cr, &command_status, NULL);
3928 switch(command_status) {
3929 case CISS_CMD_STATUS_SUCCESS:
3932 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3933 ciss_name_command_status(command_status));
3940 ciss_release_request(cr);
3944 /************************************************************************
3945 * Handle rescanning all the logical volumes when a notify event
3946 * causes the drives to come online or offline.
3949 ciss_notify_rescan_logical(struct ciss_softc *sc)
3951 struct ciss_lun_report *cll;
3952 struct ciss_ldrive *ld;
3956 * We must rescan all logical volumes to get the right logical
3959 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3960 sc->ciss_cfg->max_logical_supported);
3964 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3967 * Delete any of the drives which were destroyed by the
3970 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3971 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3972 ld = &sc->ciss_logical[i][j];
3974 if (ld->cl_update == 0)
3977 if (ld->cl_status != CISS_LD_ONLINE) {
3978 ciss_cam_rescan_target(sc, i, j);
3981 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3983 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3985 ld->cl_ldrive = NULL;
3986 ld->cl_lstatus = NULL;
3992 * Scan for new drives.
3994 for (i = 0; i < ndrives; i++) {
3997 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3998 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3999 ld = &sc->ciss_logical[bus][target];
4001 if (ld->cl_update == 0)
4005 ld->cl_address = cll->lun[i];
4006 ld->cl_controller = &sc->ciss_controllers[bus];
4007 if (ciss_identify_logical(sc, ld) == 0) {
4008 ciss_cam_rescan_target(sc, bus, target);
4011 free(cll, CISS_MALLOC_CLASS);
4014 /************************************************************************
4015 * Handle a notify event relating to the status of a logical drive.
4017 * XXX need to be able to defer some of these to properly handle
4018 * calling the "ID Physical drive" command, unless the 'extended'
4019 * drive IDs are always in BIG_MAP format.
4022 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4024 struct ciss_ldrive *ld;
4025 int ostatus, bus, target;
4029 bus = cn->device.physical.bus;
4030 target = cn->data.logical_status.logical_drive;
4031 ld = &sc->ciss_logical[bus][target];
4033 switch (cn->subclass) {
4034 case CISS_NOTIFY_LOGICAL_STATUS:
4035 switch (cn->detail) {
4037 ciss_name_device(sc, bus, target);
4038 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4039 cn->data.logical_status.logical_drive, ld->cl_name,
4040 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4041 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4042 cn->data.logical_status.spare_state,
4043 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4046 * Update our idea of the drive's status.
4048 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4049 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4050 if (ld->cl_lstatus != NULL)
4051 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4054 * Have CAM rescan the drive if its status has changed.
4056 if (ostatus != ld->cl_status) {
4058 ciss_notify_rescan_logical(sc);
4063 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4064 ciss_name_device(sc, bus, target);
4065 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4066 cn->data.logical_status.logical_drive, ld->cl_name);
4067 ciss_accept_media(sc, ld);
4070 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4071 ciss_notify_rescan_logical(sc);
4076 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4077 cn->data.rebuild_aborted.logical_drive,
4079 (cn->detail == 2) ? "read" : "write");
4084 case CISS_NOTIFY_LOGICAL_ERROR:
4085 if (cn->detail == 0) {
4086 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4087 cn->data.io_error.logical_drive,
4089 cn->data.io_error.failure_bus,
4090 cn->data.io_error.failure_drive);
4091 /* XXX should we take the drive down at this point, or will we be told? */
4095 case CISS_NOTIFY_LOGICAL_SURFACE:
4096 if (cn->detail == 0)
4097 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4098 cn->data.consistency_completed.logical_drive,
4104 /************************************************************************
4105 * Handle a notify event relating to the status of a physical drive.
4108 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4112 /************************************************************************
4113 * Handle a notify event relating to the status of a physical drive.
4116 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4118 struct ciss_lun_report *cll = NULL;
4121 switch (cn->subclass) {
4122 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4123 case CISS_NOTIFY_HOTPLUG_NONDISK:
4124 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4126 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4128 if (cn->detail == 0) {
4130 * Mark the device offline so that it'll start producing selection
4131 * timeouts to the upper layer.
4133 if ((bus >= 0) && (target >= 0))
4134 sc->ciss_physical[bus][target].cp_online = 0;
4137 * Rescan the physical lun list for new items
4139 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4140 sc->ciss_cfg->max_physical_supported);
4142 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4145 ciss_filter_physical(sc, cll);
4150 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4155 free(cll, CISS_MALLOC_CLASS);
4158 /************************************************************************
4159 * Handle deferred processing of notify events. Notify events may need
4160 * sleep which is unsafe during an interrupt.
4163 ciss_notify_thread(void *arg)
4165 struct ciss_softc *sc;
4166 struct ciss_request *cr;
4167 struct ciss_notify *cn;
4169 sc = (struct ciss_softc *)arg;
4170 mtx_lock(&sc->ciss_mtx);
4173 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4174 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4175 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4178 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4181 cr = ciss_dequeue_notify(sc);
4185 cn = (struct ciss_notify *)cr->cr_data;
4187 switch (cn->class) {
4188 case CISS_NOTIFY_HOTPLUG:
4189 ciss_notify_hotplug(sc, cn);
4191 case CISS_NOTIFY_LOGICAL:
4192 ciss_notify_logical(sc, cn);
4194 case CISS_NOTIFY_PHYSICAL:
4195 ciss_notify_physical(sc, cn);
4199 ciss_release_request(cr);
4202 sc->ciss_notify_thread = NULL;
4203 wakeup(&sc->ciss_notify_thread);
4205 mtx_unlock(&sc->ciss_mtx);
4209 /************************************************************************
4210 * Start the notification kernel thread.
4213 ciss_spawn_notify_thread(struct ciss_softc *sc)
4216 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4217 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4218 device_get_unit(sc->ciss_dev)))
4219 panic("Could not create notify thread\n");
4222 /************************************************************************
4223 * Kill the notification kernel thread.
4226 ciss_kill_notify_thread(struct ciss_softc *sc)
4229 if (sc->ciss_notify_thread == NULL)
4232 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4233 wakeup(&sc->ciss_notify);
4234 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4237 /************************************************************************
4241 ciss_print_request(struct ciss_request *cr)
4243 struct ciss_softc *sc;
4244 struct ciss_command *cc;
4250 ciss_printf(sc, "REQUEST @ %p\n", cr);
4251 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4252 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4253 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4254 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4255 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4256 switch(cc->header.address.mode.mode) {
4257 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4258 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4259 ciss_printf(sc, " physical bus %d target %d\n",
4260 cc->header.address.physical.bus, cc->header.address.physical.target);
4262 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4263 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4266 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4267 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4268 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4269 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4271 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4272 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4273 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4274 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4275 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4276 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4277 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4278 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4280 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4281 /* XXX print error info */
4283 /* since we don't use chained s/g, don't support it here */
4284 for (i = 0; i < cc->header.sg_in_list; i++) {
4286 ciss_printf(sc, " ");
4287 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4288 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4294 /************************************************************************
4295 * Print information about the status of a logical drive.
4298 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4302 if (ld->cl_lstatus == NULL) {
4303 printf("does not exist\n");
4307 /* print drive status */
4308 switch(ld->cl_lstatus->status) {
4309 case CISS_LSTATUS_OK:
4312 case CISS_LSTATUS_INTERIM_RECOVERY:
4313 printf("in interim recovery mode\n");
4315 case CISS_LSTATUS_READY_RECOVERY:
4316 printf("ready to begin recovery\n");
4318 case CISS_LSTATUS_RECOVERING:
4319 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4320 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4321 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4322 bus, target, ld->cl_lstatus->blocks_to_recover);
4324 case CISS_LSTATUS_EXPANDING:
4325 printf("being expanded, %u blocks remaining\n",
4326 ld->cl_lstatus->blocks_to_recover);
4328 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4329 printf("queued for expansion\n");
4331 case CISS_LSTATUS_FAILED:
4332 printf("queued for expansion\n");
4334 case CISS_LSTATUS_WRONG_PDRIVE:
4335 printf("wrong physical drive inserted\n");
4337 case CISS_LSTATUS_MISSING_PDRIVE:
4338 printf("missing a needed physical drive\n");
4340 case CISS_LSTATUS_BECOMING_READY:
4341 printf("becoming ready\n");
4345 /* print failed physical drives */
4346 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4347 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4348 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4351 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4352 ld->cl_lstatus->drive_failure_map[i]);
4357 #include "opt_ddb.h"
4359 #include <ddb/ddb.h>
4360 /************************************************************************
4361 * Print information about the controller/driver.
4364 ciss_print_adapter(struct ciss_softc *sc)
4368 ciss_printf(sc, "ADAPTER:\n");
4369 for (i = 0; i < CISSQ_COUNT; i++) {
4370 ciss_printf(sc, "%s %d/%d\n",
4372 i == 1 ? "busy" : "complete",
4373 sc->ciss_qstat[i].q_length,
4374 sc->ciss_qstat[i].q_max);
4376 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4377 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4378 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4380 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4381 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4382 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4383 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4387 /* XXX Should physical drives be printed out here? */
4389 for (i = 1; i < sc->ciss_max_requests; i++)
4390 ciss_print_request(sc->ciss_request + i);
4394 DB_COMMAND(ciss_prt, db_ciss_prt)
4396 struct ciss_softc *sc;
4400 dc = devclass_find("ciss");
4402 printf("%s: can't find devclass!\n", __func__);
4405 maxciss = devclass_get_maxunit(dc);
4406 for (i = 0; i < maxciss; i++) {
4407 sc = devclass_get_softc(dc, i);
4408 ciss_print_adapter(sc);
4414 /************************************************************************
4415 * Return a name for a logical drive status value.
4418 ciss_name_ldrive_status(int status)
4421 case CISS_LSTATUS_OK:
4423 case CISS_LSTATUS_FAILED:
4425 case CISS_LSTATUS_NOT_CONFIGURED:
4426 return("not configured");
4427 case CISS_LSTATUS_INTERIM_RECOVERY:
4428 return("interim recovery");
4429 case CISS_LSTATUS_READY_RECOVERY:
4430 return("ready for recovery");
4431 case CISS_LSTATUS_RECOVERING:
4432 return("recovering");
4433 case CISS_LSTATUS_WRONG_PDRIVE:
4434 return("wrong physical drive inserted");
4435 case CISS_LSTATUS_MISSING_PDRIVE:
4436 return("missing physical drive");
4437 case CISS_LSTATUS_EXPANDING:
4438 return("expanding");
4439 case CISS_LSTATUS_BECOMING_READY:
4440 return("becoming ready");
4441 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4442 return("queued for expansion");
4444 return("unknown status");
4447 /************************************************************************
4448 * Return an online/offline/nonexistent value for a logical drive
4452 ciss_decode_ldrive_status(int status)
4455 case CISS_LSTATUS_NOT_CONFIGURED:
4456 return(CISS_LD_NONEXISTENT);
4458 case CISS_LSTATUS_OK:
4459 case CISS_LSTATUS_INTERIM_RECOVERY:
4460 case CISS_LSTATUS_READY_RECOVERY:
4461 case CISS_LSTATUS_RECOVERING:
4462 case CISS_LSTATUS_EXPANDING:
4463 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4464 return(CISS_LD_ONLINE);
4466 case CISS_LSTATUS_FAILED:
4467 case CISS_LSTATUS_WRONG_PDRIVE:
4468 case CISS_LSTATUS_MISSING_PDRIVE:
4469 case CISS_LSTATUS_BECOMING_READY:
4471 return(CISS_LD_OFFLINE);
4476 /************************************************************************
4477 * Return a name for a logical drive's organisation.
4480 ciss_name_ldrive_org(int org)
4483 case CISS_LDRIVE_RAID0:
4485 case CISS_LDRIVE_RAID1:
4486 return("RAID 1(1+0)");
4487 case CISS_LDRIVE_RAID4:
4489 case CISS_LDRIVE_RAID5:
4491 case CISS_LDRIVE_RAID51:
4493 case CISS_LDRIVE_RAIDADG:
4499 /************************************************************************
4500 * Return a name for a command status value.
4503 ciss_name_command_status(int status)
4506 case CISS_CMD_STATUS_SUCCESS:
4508 case CISS_CMD_STATUS_TARGET_STATUS:
4509 return("target status");
4510 case CISS_CMD_STATUS_DATA_UNDERRUN:
4511 return("data underrun");
4512 case CISS_CMD_STATUS_DATA_OVERRUN:
4513 return("data overrun");
4514 case CISS_CMD_STATUS_INVALID_COMMAND:
4515 return("invalid command");
4516 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4517 return("protocol error");
4518 case CISS_CMD_STATUS_HARDWARE_ERROR:
4519 return("hardware error");
4520 case CISS_CMD_STATUS_CONNECTION_LOST:
4521 return("connection lost");
4522 case CISS_CMD_STATUS_ABORTED:
4524 case CISS_CMD_STATUS_ABORT_FAILED:
4525 return("abort failed");
4526 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4527 return("unsolicited abort");
4528 case CISS_CMD_STATUS_TIMEOUT:
4530 case CISS_CMD_STATUS_UNABORTABLE:
4531 return("unabortable");
4533 return("unknown status");
4536 /************************************************************************
4537 * Handle an open on the control device.
4540 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4542 struct ciss_softc *sc;
4546 sc = (struct ciss_softc *)dev->si_drv1;
4548 /* we might want to veto if someone already has us open */
4550 mtx_lock(&sc->ciss_mtx);
4551 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4552 mtx_unlock(&sc->ciss_mtx);
4556 /************************************************************************
4557 * Handle the last close on the control device.
4560 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4562 struct ciss_softc *sc;
4566 sc = (struct ciss_softc *)dev->si_drv1;
4568 mtx_lock(&sc->ciss_mtx);
4569 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4570 mtx_unlock(&sc->ciss_mtx);
4574 /********************************************************************************
4575 * Handle adapter-specific control operations.
4577 * Note that the API here is compatible with the Linux driver, in order to
4578 * simplify the porting of Compaq's userland tools.
4581 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4583 struct ciss_softc *sc;
4584 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4586 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4587 IOCTL_Command_struct ioc_swab;
4593 sc = (struct ciss_softc *)dev->si_drv1;
4595 mtx_lock(&sc->ciss_mtx);
4598 case CCISS_GETQSTATS:
4600 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4602 switch (cr->cs_item) {
4605 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4606 sizeof(struct ciss_qstat));
4616 case CCISS_GETPCIINFO:
4618 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4620 pis->bus = pci_get_bus(sc->ciss_dev);
4621 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4622 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4623 pci_get_subdevice(sc->ciss_dev);
4628 case CCISS_GETINTINFO:
4630 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4632 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4633 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4638 case CCISS_SETINTINFO:
4640 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4642 if ((cis->delay == 0) && (cis->count == 0)) {
4648 * XXX apparently this is only safe if the controller is idle,
4649 * we should suspend it before doing this.
4651 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4652 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4654 if (ciss_update_config(sc))
4657 /* XXX resume the controller here */
4661 case CCISS_GETNODENAME:
4662 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4663 sizeof(NodeName_type));
4666 case CCISS_SETNODENAME:
4667 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4668 sizeof(NodeName_type));
4669 if (ciss_update_config(sc))
4673 case CCISS_GETHEARTBEAT:
4674 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4677 case CCISS_GETBUSTYPES:
4678 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4681 case CCISS_GETFIRMVER:
4682 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4683 sizeof(FirmwareVer_type));
4686 case CCISS_GETDRIVERVER:
4687 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4690 case CCISS_REVALIDVOLS:
4692 * This is a bit ugly; to do it "right" we really need
4693 * to find any disks that have changed, kick CAM off them,
4694 * then rescan only these disks. It'd be nice if they
4695 * a) told us which disk(s) they were going to play with,
4696 * and b) which ones had arrived. 8(
4701 case CCISS_PASSTHRU32:
4702 ioc_swab.LUN_info = ioc32->LUN_info;
4703 ioc_swab.Request = ioc32->Request;
4704 ioc_swab.error_info = ioc32->error_info;
4705 ioc_swab.buf_size = ioc32->buf_size;
4706 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4711 case CCISS_PASSTHRU:
4712 error = ciss_user_command(sc, ioc);
4716 debug(0, "unknown ioctl 0x%lx", cmd);
4718 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4719 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4720 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4721 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4722 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4723 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4724 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4725 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4726 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4727 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4728 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4734 mtx_unlock(&sc->ciss_mtx);