1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001 Michael Smith
5 * Copyright (c) 2004 Paul Saab
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32 /*
33 * Common Interface for SCSI-3 Support driver.
34 *
35 * CISS claims to provide a common interface between a generic SCSI
36 * transport and an intelligent host adapter.
37 *
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.
45 *
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.
56 *
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.
63 *
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.
67 *
68 *
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
71 * driver happen.
72 *
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.
77 */
78
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/malloc.h>
82 #include <sys/kernel.h>
83 #include <sys/bus.h>
84 #include <sys/conf.h>
85 #include <sys/stat.h>
86 #include <sys/kthread.h>
87 #include <sys/queue.h>
88 #include <sys/sysctl.h>
89
90 #include <cam/cam.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>
97
98 #include <machine/bus.h>
99 #include <machine/endian.h>
100 #include <machine/resource.h>
101 #include <sys/rman.h>
102
103 #include <dev/pci/pcireg.h>
104 #include <dev/pci/pcivar.h>
105
106 #include <dev/ciss/cissreg.h>
107 #include <dev/ciss/cissio.h>
108 #include <dev/ciss/cissvar.h>
109
110 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
111 "ciss internal data buffers");
112
113 /* pci interface */
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);
119
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);
142
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);
155 #if 0
156 static int ciss_abort_request(struct ciss_request *cr);
157 #endif
158
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);
163
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);
168
169 /* DMA map/unmap */
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);
174
175 /* CAM interface */
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);
186
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);
198
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);
206
207 /*
208 * PCI bus interface.
209 */
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),
216 { 0, 0 }
217 };
218
219 static driver_t ciss_pci_driver = {
220 "ciss",
221 ciss_methods,
222 sizeof(struct ciss_softc)
223 };
224
225 /*
226 * Control device interface.
227 */
228 static d_open_t ciss_open;
229 static d_close_t ciss_close;
230 static d_ioctl_t ciss_ioctl;
231
232 static struct cdevsw ciss_cdevsw = {
233 .d_version = D_VERSION,
234 .d_flags = 0,
235 .d_open = ciss_open,
236 .d_close = ciss_close,
237 .d_ioctl = ciss_ioctl,
238 .d_name = "ciss",
239 };
240
241 /*
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.
244 */
245 static unsigned int ciss_expose_hidden_physical = 0;
246 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
247
248 static unsigned int ciss_nop_message_heartbeat = 0;
249 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
250
251 /*
252 * This tunable can force a particular transport to be used:
253 * <= 0 : use default
254 * 1 : force simple
255 * 2 : force performant
256 */
257 static int ciss_force_transport = 0;
258 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
259
260 /*
261 * This tunable can force a particular interrupt delivery method to be used:
262 * <= 0 : use default
263 * 1 : force INTx
264 * 2 : force MSIX
265 */
266 static int ciss_force_interrupt = 0;
267 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
268
269
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.
276 */
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)
282
283 static struct
284 {
285 u_int16_t subvendor;
286 u_int16_t subdevice;
287 int flags;
288 char *desc;
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" },
362 { 0, 0, 0, NULL }
363 };
364
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);
371
372 /************************************************************************
373 * Find a match for the device in our list of known adapters.
374 */
375 static int
ciss_lookup(device_t dev)376 ciss_lookup(device_t dev)
377 {
378 int i;
379
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)) {
383 return(i);
384 }
385 return(-1);
386 }
387
388 /************************************************************************
389 * Match a known CISS adapter.
390 */
391 static int
ciss_probe(device_t dev)392 ciss_probe(device_t dev)
393 {
394 int i;
395
396 i = ciss_lookup(dev);
397 if (i != -1) {
398 device_set_desc(dev, ciss_vendor_data[i].desc);
399 return(BUS_PROBE_DEFAULT);
400 }
401 return(ENOENT);
402 }
403
404 /************************************************************************
405 * Attach the driver to this adapter.
406 */
407 static int
ciss_attach(device_t dev)408 ciss_attach(device_t dev)
409 {
410 struct ciss_softc *sc;
411 int error;
412
413 debug_called(1);
414
415 #ifdef CISS_DEBUG
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);
442
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);
453 #endif
454
455 sc = device_get_softc(dev);
456 sc->ciss_dev = dev;
457 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
458 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
459
460 /*
461 * Do PCI-specific init.
462 */
463 if ((error = ciss_init_pci(sc)) != 0)
464 goto out;
465
466 /*
467 * Initialise driver queues.
468 */
469 ciss_initq_free(sc);
470 ciss_initq_notify(sc);
471
472 /*
473 * Initialize device sysctls.
474 */
475 ciss_init_sysctl(sc);
476
477 /*
478 * Initialise command/request pool.
479 */
480 if ((error = ciss_init_requests(sc)) != 0)
481 goto out;
482
483 /*
484 * Get adapter information.
485 */
486 if ((error = ciss_identify_adapter(sc)) != 0)
487 goto out;
488
489 /*
490 * Find all the physical devices.
491 */
492 if ((error = ciss_init_physical(sc)) != 0)
493 goto out;
494
495 /*
496 * Build our private table of logical devices.
497 */
498 if ((error = ciss_init_logical(sc)) != 0)
499 goto out;
500
501 /*
502 * Enable interrupts so that the CAM scan can complete.
503 */
504 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
505
506 /*
507 * Initialise the CAM interface.
508 */
509 if ((error = ciss_cam_init(sc)) != 0)
510 goto out;
511
512 /*
513 * Start the heartbeat routine and event chain.
514 */
515 ciss_periodic(sc);
516
517 /*
518 * Create the control device.
519 */
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;
524
525 /*
526 * The adapter is running; synchronous commands can now sleep
527 * waiting for an interrupt to signal completion.
528 */
529 sc->ciss_flags |= CISS_FLAG_RUNNING;
530
531 ciss_spawn_notify_thread(sc);
532
533 error = 0;
534 out:
535 if (error != 0) {
536 /* ciss_free() expects the mutex to be held */
537 mtx_lock(&sc->ciss_mtx);
538 ciss_free(sc);
539 }
540 return(error);
541 }
542
543 /************************************************************************
544 * Detach the driver from this adapter.
545 */
546 static int
ciss_detach(device_t dev)547 ciss_detach(device_t dev)
548 {
549 struct ciss_softc *sc = device_get_softc(dev);
550
551 debug_called(1);
552
553 mtx_lock(&sc->ciss_mtx);
554 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
555 mtx_unlock(&sc->ciss_mtx);
556 return (EBUSY);
557 }
558
559 /* flush adapter cache */
560 ciss_flush_adapter(sc);
561
562 /* release all resources. The mutex is released and freed here too. */
563 ciss_free(sc);
564
565 return(0);
566 }
567
568 /************************************************************************
569 * Prepare adapter for system shutdown.
570 */
571 static int
ciss_shutdown(device_t dev)572 ciss_shutdown(device_t dev)
573 {
574 struct ciss_softc *sc = device_get_softc(dev);
575
576 debug_called(1);
577
578 mtx_lock(&sc->ciss_mtx);
579 /* flush adapter cache */
580 ciss_flush_adapter(sc);
581
582 if (sc->ciss_soft_reset)
583 ciss_soft_reset(sc);
584 mtx_unlock(&sc->ciss_mtx);
585
586 return(0);
587 }
588
589 static void
ciss_init_sysctl(struct ciss_softc * sc)590 ciss_init_sysctl(struct ciss_softc *sc)
591 {
592
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, "");
596 }
597
598 /************************************************************************
599 * Perform PCI-specific attachment actions.
600 */
601 static int
ciss_init_pci(struct ciss_softc * sc)602 ciss_init_pci(struct ciss_softc *sc)
603 {
604 uintptr_t cbase, csize, cofs;
605 uint32_t method, supported_methods;
606 int error, sqmask, i;
607 void *intr;
608
609 debug_called(1);
610
611 /*
612 * Work out adapter type.
613 */
614 i = ciss_lookup(sc->ciss_dev);
615 if (i < 0) {
616 ciss_printf(sc, "unknown adapter type\n");
617 return (ENXIO);
618 }
619
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;
624 } else {
625 /*
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.
629 */
630 sqmask = ~0;
631 }
632
633 /*
634 * Allocate register window first (we need this to find the config
635 * struct).
636 */
637 error = ENXIO;
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");
643 return(ENXIO);
644 }
645 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
646 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
647
648 /*
649 * Find the BAR holding the config structure. If it's not the one
650 * we already mapped for registers, map it too.
651 */
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");
658 return(ENXIO);
659 }
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;
663 } else {
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;
667 }
668 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
669
670 /*
671 * Use the base/size/offset values we just calculated to
672 * sanity-check the config structure. If it's OK, point to it.
673 */
674 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
675 ciss_printf(sc, "config table outside window\n");
676 return(ENXIO);
677 }
678 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
679 debug(1, "config struct at %p", sc->ciss_cfg);
680
681 /*
682 * Calculate the number of request structures/commands we are
683 * going to provide for this adapter.
684 */
685 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
686
687 /*
688 * Validate the config structure. If we supported other transport
689 * methods, we could select amongst them at this point in time.
690 */
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]);
695 return(ENXIO);
696 }
697
698 /*
699 * Select the mode of operation, prefer Performant.
700 */
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);
705 }
706
707 switch (ciss_force_transport) {
708 case 1:
709 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
710 break;
711 case 2:
712 supported_methods = CISS_TRANSPORT_METHOD_PERF;
713 break;
714 default:
715 /*
716 * Override the capabilities of the BOARD and specify SIMPLE
717 * MODE
718 */
719 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
720 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
721 else
722 supported_methods = sc->ciss_cfg->supported_methods;
723 break;
724 }
725
726 setup:
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;
733 goto setup;
734 }
735 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
736 method = CISS_TRANSPORT_METHOD_SIMPLE;
737 } else {
738 ciss_printf(sc, "No supported transport methods: 0x%x\n",
739 sc->ciss_cfg->supported_methods);
740 return(ENXIO);
741 }
742
743 /*
744 * Tell it we're using the low 4GB of RAM. Set the default interrupt
745 * coalescing options.
746 */
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;
751
752 #ifdef __i386__
753 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
754 #endif
755
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));
759 return(ENXIO);
760 }
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);
767 return(ENXIO);
768 } else
769 goto setup;
770 }
771
772 /*
773 * Wait for the adapter to come ready.
774 */
775 if ((error = ciss_wait_adapter(sc)) != 0)
776 return(error);
777
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.
780 */
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;
786 } else {
787 intr = ciss_perf_intr;
788 }
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.
793 */
794 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
795
796 } else {
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 */
801 ciss_setup_msix(sc);
802 sc->ciss_perf = NULL;
803 intr = ciss_intr;
804 sc->ciss_interrupt_mask = sqmask;
805 }
806
807 /*
808 * Turn off interrupts before we go routing anything.
809 */
810 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
811
812 /*
813 * Allocate and set up our interrupt.
814 */
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");
819 return(ENXIO);
820 }
821
822 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
823 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
824 &sc->ciss_intr)) {
825 ciss_printf(sc, "can't set up interrupt\n");
826 return(ENXIO);
827 }
828
829 /*
830 * Allocate the parent bus DMA tag appropriate for our PCI
831 * interface.
832 *
833 * Note that "simple" adapters can only address within a 32-bit
834 * span.
835 */
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 */
844 0, /* flags */
845 NULL, NULL, /* lockfunc, lockarg */
846 &sc->ciss_parent_dmat)) {
847 ciss_printf(sc, "can't allocate parent DMA tag\n");
848 return(ENOMEM);
849 }
850
851 /*
852 * Create DMA tag for mapping buffers into adapter-addressable
853 * space.
854 */
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");
867 return(ENOMEM);
868 }
869 return(0);
870 }
871
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.
876 */
877 static int
ciss_setup_msix(struct ciss_softc * sc)878 ciss_setup_msix(struct ciss_softc *sc)
879 {
880 int val, i;
881
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)
885 return (EINVAL);
886
887 /*
888 * Only need to use the minimum number of MSI vectors, as the driver
889 * doesn't support directed MSIX interrupts.
890 */
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)
896 return (EINVAL);
897 }
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)
901 return (EINVAL);
902 }
903
904 sc->ciss_msi = val;
905 if (bootverbose)
906 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
907 (val != 1) ? "s" : "");
908
909 for (i = 0; i < val; i++)
910 sc->ciss_irq_rid[i] = i + 1;
911
912 return (0);
913
914 }
915
916 /************************************************************************
917 * Setup the Performant structures.
918 */
919 static int
ciss_init_perf(struct ciss_softc * sc)920 ciss_init_perf(struct ciss_softc *sc)
921 {
922 struct ciss_perf_config *pc = sc->ciss_perf;
923 int reply_size;
924
925 /*
926 * Create the DMA tag for the reply queue.
927 */
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 */
936 0, /* flags */
937 NULL, NULL, /* lockfunc, lockarg */
938 &sc->ciss_reply_dmat)) {
939 ciss_printf(sc, "can't allocate reply DMA tag\n");
940 return(ENOMEM);
941 }
942 /*
943 * Allocate memory and make it available for DMA.
944 */
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");
948 return(ENOMEM);
949 }
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);
953
954 sc->ciss_cycle = 0x1;
955 sc->ciss_rqidx = 0;
956
957 /*
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.
963 */
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;
978
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 */
981 pc->rq_bank_hi = 0;
982 pc->rq_bank_lo = 0;
983 pc->rq[0].rq_addr_hi = 0x0;
984 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
985
986 return(0);
987 }
988
989 /************************************************************************
990 * Wait for the adapter to come ready.
991 */
992 static int
ciss_wait_adapter(struct ciss_softc * sc)993 ciss_wait_adapter(struct ciss_softc *sc)
994 {
995 int i;
996
997 debug_called(1);
998
999 /*
1000 * Wait for the adapter to come ready.
1001 */
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 */
1006 if (i > 30) {
1007 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1008 return(EIO);
1009 }
1010 }
1011 }
1012 return(0);
1013 }
1014
1015 /************************************************************************
1016 * Flush the adapter cache.
1017 */
1018 static int
ciss_flush_adapter(struct ciss_softc * sc)1019 ciss_flush_adapter(struct ciss_softc *sc)
1020 {
1021 struct ciss_request *cr;
1022 struct ciss_bmic_flush_cache *cbfc;
1023 int error, command_status;
1024
1025 debug_called(1);
1026
1027 cr = NULL;
1028 cbfc = NULL;
1029
1030 /*
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).
1034 */
1035 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1036 error = ENOMEM;
1037 goto out;
1038 }
1039 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1040 (void **)&cbfc, sizeof(*cbfc))) != 0)
1041 goto out;
1042
1043 /*
1044 * Submit the request and wait for it to complete.
1045 */
1046 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1047 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1048 goto out;
1049 }
1050
1051 /*
1052 * Check response.
1053 */
1054 ciss_report_request(cr, &command_status, NULL);
1055 switch(command_status) {
1056 case CISS_CMD_STATUS_SUCCESS:
1057 break;
1058 default:
1059 ciss_printf(sc, "error flushing cache (%s)\n",
1060 ciss_name_command_status(command_status));
1061 error = EIO;
1062 goto out;
1063 }
1064
1065 out:
1066 if (cbfc != NULL)
1067 free(cbfc, CISS_MALLOC_CLASS);
1068 if (cr != NULL)
1069 ciss_release_request(cr);
1070 return(error);
1071 }
1072
1073 static void
ciss_soft_reset(struct ciss_softc * sc)1074 ciss_soft_reset(struct ciss_softc *sc)
1075 {
1076 struct ciss_request *cr = NULL;
1077 struct ciss_command *cc;
1078 int i, error = 0;
1079
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)
1083 continue;
1084
1085 if ((error = ciss_get_request(sc, &cr)) != 0)
1086 break;
1087
1088 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1089 NULL, 0)) != 0)
1090 break;
1091
1092 cc = cr->cr_cc;
1093 cc->header.address = sc->ciss_controllers[i];
1094
1095 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1096 break;
1097
1098 ciss_release_request(cr);
1099 }
1100
1101 if (error)
1102 ciss_printf(sc, "error resetting controller (%d)\n", error);
1103
1104 if (cr != NULL)
1105 ciss_release_request(cr);
1106 }
1107
1108 /************************************************************************
1109 * Allocate memory for the adapter command structures, initialise
1110 * the request structures.
1111 *
1112 * Note that the entire set of commands are allocated in a single
1113 * contiguous slab.
1114 */
1115 static int
ciss_init_requests(struct ciss_softc * sc)1116 ciss_init_requests(struct ciss_softc *sc)
1117 {
1118 struct ciss_request *cr;
1119 int i;
1120
1121 debug_called(1);
1122
1123 if (bootverbose)
1124 ciss_printf(sc, "using %d of %d available commands\n",
1125 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1126
1127 /*
1128 * Create the DMA tag for commands.
1129 */
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 */
1138 0, /* flags */
1139 NULL, NULL, /* lockfunc, lockarg */
1140 &sc->ciss_command_dmat)) {
1141 ciss_printf(sc, "can't allocate command DMA tag\n");
1142 return(ENOMEM);
1143 }
1144 /*
1145 * Allocate memory and make it available for DMA.
1146 */
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");
1150 return(ENOMEM);
1151 }
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);
1156
1157 /*
1158 * Set up the request and command structures, push requests onto
1159 * the free queue.
1160 */
1161 for (i = 1; i < sc->ciss_max_requests; i++) {
1162 cr = &sc->ciss_request[i];
1163 cr->cr_sc = sc;
1164 cr->cr_tag = 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);
1170 }
1171 return(0);
1172 }
1173
1174 static void
ciss_command_map_helper(void * arg,bus_dma_segment_t * segs,int nseg,int error)1175 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1176 {
1177 uint32_t *addr;
1178
1179 addr = arg;
1180 *addr = segs[0].ds_addr;
1181 }
1182
1183 /************************************************************************
1184 * Identify the adapter, print some information about it.
1185 */
1186 static int
ciss_identify_adapter(struct ciss_softc * sc)1187 ciss_identify_adapter(struct ciss_softc *sc)
1188 {
1189 struct ciss_request *cr;
1190 int error, command_status;
1191
1192 debug_called(1);
1193
1194 cr = NULL;
1195
1196 /*
1197 * Get a request, allocate storage for the adapter data.
1198 */
1199 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1200 (void **)&sc->ciss_id,
1201 sizeof(*sc->ciss_id))) != 0)
1202 goto out;
1203
1204 /*
1205 * Submit the request and wait for it to complete.
1206 */
1207 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1208 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1209 goto out;
1210 }
1211
1212 /*
1213 * Check response.
1214 */
1215 ciss_report_request(cr, &command_status, NULL);
1216 switch(command_status) {
1217 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1218 break;
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");
1222 default:
1223 ciss_printf(sc, "error reading adapter information (%s)\n",
1224 ciss_name_command_status(command_status));
1225 error = EIO;
1226 goto out;
1227 }
1228
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");
1232 error = ENXIO;
1233 goto out;
1234 }
1235
1236 #if 0
1237 /* XXX later revisions may not need this */
1238 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1239 #endif
1240
1241 /* XXX only really required for old 5300 adapters? */
1242 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1243
1244 /*
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
1249 */
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 */
1255 if (bootverbose) {
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);
1261
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");
1288 }
1289
1290 out:
1291 if (error) {
1292 if (sc->ciss_id != NULL) {
1293 free(sc->ciss_id, CISS_MALLOC_CLASS);
1294 sc->ciss_id = NULL;
1295 }
1296 }
1297 if (cr != NULL)
1298 ciss_release_request(cr);
1299 return(error);
1300 }
1301
1302 /************************************************************************
1303 * Helper routine for generating a list of logical and physical luns.
1304 */
1305 static struct ciss_lun_report *
ciss_report_luns(struct ciss_softc * sc,int opcode,int nunits)1306 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1307 {
1308 struct ciss_request *cr;
1309 struct ciss_command *cc;
1310 struct ciss_report_cdb *crc;
1311 struct ciss_lun_report *cll;
1312 int command_status;
1313 int report_size;
1314 int error = 0;
1315
1316 debug_called(1);
1317
1318 cr = NULL;
1319 cll = NULL;
1320
1321 /*
1322 * Get a request, allocate storage for the address list.
1323 */
1324 if ((error = ciss_get_request(sc, &cr)) != 0)
1325 goto out;
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");
1329 error = ENOMEM;
1330 goto out;
1331 }
1332
1333 /*
1334 * Build the Report Logical/Physical LUNs command.
1335 */
1336 cc = cr->cr_cc;
1337 cr->cr_data = cll;
1338 cr->cr_length = report_size;
1339 cr->cr_flags = CISS_REQ_DATAIN;
1340
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? */
1349
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 */
1355
1356 /*
1357 * Submit the request and wait for it to complete. (timeout
1358 * here should be much greater than above)
1359 */
1360 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1361 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1362 goto out;
1363 }
1364
1365 /*
1366 * Check response. Note that data over/underrun is OK.
1367 */
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 */
1372 break;
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);
1376 break;
1377 default:
1378 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1379 ciss_name_command_status(command_status));
1380 error = EIO;
1381 goto out;
1382 }
1383 ciss_release_request(cr);
1384 cr = NULL;
1385
1386 out:
1387 if (cr != NULL)
1388 ciss_release_request(cr);
1389 if (error && cll != NULL) {
1390 free(cll, CISS_MALLOC_CLASS);
1391 cll = NULL;
1392 }
1393 return(cll);
1394 }
1395
1396 /************************************************************************
1397 * Find logical drives on the adapter.
1398 */
1399 static int
ciss_init_logical(struct ciss_softc * sc)1400 ciss_init_logical(struct ciss_softc *sc)
1401 {
1402 struct ciss_lun_report *cll;
1403 int error = 0, i, j;
1404 int ndrives;
1405
1406 debug_called(1);
1407
1408 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1409 sc->ciss_cfg->max_logical_supported);
1410 if (cll == NULL) {
1411 error = ENXIO;
1412 goto out;
1413 }
1414
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);
1420 error = ENXIO;
1421 goto out;
1422 }
1423
1424 /*
1425 * Save logical drive information.
1426 */
1427 if (bootverbose) {
1428 ciss_printf(sc, "%d logical drive%s\n",
1429 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1430 }
1431
1432 sc->ciss_logical =
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) {
1436 error = ENXIO;
1437 goto out;
1438 }
1439
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) {
1446 error = ENXIO;
1447 goto out;
1448 }
1449
1450 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1451 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1452 }
1453
1454
1455 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1456 if (i < ndrives) {
1457 struct ciss_ldrive *ld;
1458 int bus, target;
1459
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];
1463
1464 ld->cl_address = cll->lun[i];
1465 ld->cl_controller = &sc->ciss_controllers[bus];
1466 if (ciss_identify_logical(sc, ld) != 0)
1467 continue;
1468 /*
1469 * If the drive has had media exchanged, we should bring it online.
1470 */
1471 if (ld->cl_lstatus->media_exchanged)
1472 ciss_accept_media(sc, ld);
1473
1474 }
1475 }
1476
1477 out:
1478 if (cll != NULL)
1479 free(cll, CISS_MALLOC_CLASS);
1480 return(error);
1481 }
1482
1483 static int
ciss_init_physical(struct ciss_softc * sc)1484 ciss_init_physical(struct ciss_softc *sc)
1485 {
1486 struct ciss_lun_report *cll;
1487 int error = 0, i;
1488 int nphys;
1489 int bus, target;
1490
1491 debug_called(1);
1492
1493 bus = 0;
1494 target = 0;
1495
1496 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1497 sc->ciss_cfg->max_physical_supported);
1498 if (cll == NULL) {
1499 error = ENXIO;
1500 goto out;
1501 }
1502
1503 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1504
1505 if (bootverbose) {
1506 ciss_printf(sc, "%d physical device%s\n",
1507 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1508 }
1509
1510 /*
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:
1519 *
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
1525 *
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.
1533 */
1534 /*
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
1541 * sized.
1542 */
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;
1548 } else {
1549 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1550 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1551 }
1552 }
1553
1554 sc->ciss_controllers =
1555 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1556 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1557
1558 if (sc->ciss_controllers == NULL) {
1559 ciss_printf(sc, "Could not allocate memory for controller map\n");
1560 error = ENOMEM;
1561 goto out;
1562 }
1563
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];
1568 }
1569 }
1570
1571 sc->ciss_physical =
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");
1576 error = ENOMEM;
1577 goto out;
1578 }
1579
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");
1586 error = ENOMEM;
1587 goto out;
1588 }
1589 }
1590
1591 ciss_filter_physical(sc, cll);
1592
1593 out:
1594 if (cll != NULL)
1595 free(cll, CISS_MALLOC_CLASS);
1596
1597 return(error);
1598 }
1599
1600 static int
ciss_filter_physical(struct ciss_softc * sc,struct ciss_lun_report * cll)1601 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1602 {
1603 u_int32_t ea;
1604 int i, nphys;
1605 int bus, target;
1606
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)
1610 continue;
1611
1612 /*
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
1615 * hint to know how.
1616 *
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.
1623 */
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))
1627 continue;
1628 if ((ciss_expose_hidden_physical == 0) &&
1629 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1630 continue;
1631
1632 /*
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.
1636 */
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;
1641 }
1642
1643 return (0);
1644 }
1645
1646 static int
ciss_inquiry_logical(struct ciss_softc * sc,struct ciss_ldrive * ld)1647 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1648 {
1649 struct ciss_request *cr;
1650 struct ciss_command *cc;
1651 struct scsi_inquiry *inq;
1652 int error;
1653 int command_status;
1654
1655 cr = NULL;
1656
1657 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1658
1659 if ((error = ciss_get_request(sc, &cr)) != 0)
1660 goto out;
1661
1662 cc = cr->cr_cc;
1663 cr->cr_data = &ld->cl_geometry;
1664 cr->cr_length = sizeof(ld->cl_geometry);
1665 cr->cr_flags = CISS_REQ_DATAIN;
1666
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;
1673
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);
1679
1680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1681 ciss_printf(sc, "error getting geometry (%d)\n", error);
1682 goto out;
1683 }
1684
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:
1689 break;
1690 case CISS_CMD_STATUS_DATA_OVERRUN:
1691 ciss_printf(sc, "WARNING: Data overrun\n");
1692 break;
1693 default:
1694 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1695 ciss_name_command_status(command_status));
1696 break;
1697 }
1698
1699 out:
1700 if (cr != NULL)
1701 ciss_release_request(cr);
1702 return(error);
1703 }
1704 /************************************************************************
1705 * Identify a logical drive, initialise state related to it.
1706 */
1707 static int
ciss_identify_logical(struct ciss_softc * sc,struct ciss_ldrive * ld)1708 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1709 {
1710 struct ciss_request *cr;
1711 struct ciss_command *cc;
1712 struct ciss_bmic_cdb *cbc;
1713 int error, command_status;
1714
1715 debug_called(1);
1716
1717 cr = NULL;
1718
1719 /*
1720 * Build a BMIC request to fetch the drive ID.
1721 */
1722 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1723 (void **)&ld->cl_ldrive,
1724 sizeof(*ld->cl_ldrive))) != 0)
1725 goto out;
1726 cc = cr->cr_cc;
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);
1730
1731 /*
1732 * Submit the request and wait for it to complete.
1733 */
1734 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1735 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1736 goto out;
1737 }
1738
1739 /*
1740 * Check response.
1741 */
1742 ciss_report_request(cr, &command_status, NULL);
1743 switch(command_status) {
1744 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1745 break;
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");
1749 default:
1750 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1751 ciss_name_command_status(command_status));
1752 error = EIO;
1753 goto out;
1754 }
1755 ciss_release_request(cr);
1756 cr = NULL;
1757
1758 /*
1759 * Build a CISS BMIC command to get the logical drive status.
1760 */
1761 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1762 goto out;
1763
1764 /*
1765 * Get the logical drive geometry.
1766 */
1767 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1768 goto out;
1769
1770 /*
1771 * Print the drive's basic characteristics.
1772 */
1773 if (bootverbose) {
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));
1780
1781 ciss_print_ldrive(sc, ld);
1782 }
1783 out:
1784 if (error != 0) {
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;
1790 }
1791 if (ld->cl_lstatus != NULL) {
1792 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1793 ld->cl_lstatus = NULL;
1794 }
1795 }
1796 if (cr != NULL)
1797 ciss_release_request(cr);
1798
1799 return(error);
1800 }
1801
1802 /************************************************************************
1803 * Get status for a logical drive.
1804 *
1805 * XXX should we also do this in response to Test Unit Ready?
1806 */
1807 static int
ciss_get_ldrive_status(struct ciss_softc * sc,struct ciss_ldrive * ld)1808 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1809 {
1810 struct ciss_request *cr;
1811 struct ciss_command *cc;
1812 struct ciss_bmic_cdb *cbc;
1813 int error, command_status;
1814
1815 /*
1816 * Build a CISS BMIC command to get the logical drive status.
1817 */
1818 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1819 (void **)&ld->cl_lstatus,
1820 sizeof(*ld->cl_lstatus))) != 0)
1821 goto out;
1822 cc = cr->cr_cc;
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);
1826
1827 /*
1828 * Submit the request and wait for it to complete.
1829 */
1830 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1831 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1832 goto out;
1833 }
1834
1835 /*
1836 * Check response.
1837 */
1838 ciss_report_request(cr, &command_status, NULL);
1839 switch(command_status) {
1840 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1841 break;
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");
1845 default:
1846 ciss_printf(sc, "error reading logical drive status (%s)\n",
1847 ciss_name_command_status(command_status));
1848 error = EIO;
1849 goto out;
1850 }
1851
1852 /*
1853 * Set the drive's summary status based on the returned status.
1854 *
1855 * XXX testing shows that a failed JBOD drive comes back at next
1856 * boot in "queued for expansion" mode. WTF?
1857 */
1858 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1859
1860 out:
1861 if (cr != NULL)
1862 ciss_release_request(cr);
1863 return(error);
1864 }
1865
1866 /************************************************************************
1867 * Notify the adapter of a config update.
1868 */
1869 static int
ciss_update_config(struct ciss_softc * sc)1870 ciss_update_config(struct ciss_softc *sc)
1871 {
1872 int i;
1873
1874 debug_called(1);
1875
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)) {
1880 return(0);
1881 }
1882 DELAY(1000);
1883 }
1884 return(1);
1885 }
1886
1887 /************************************************************************
1888 * Accept new media into a logical drive.
1889 *
1890 * XXX The drive has previously been offline; it would be good if we
1891 * could make sure it's not open right now.
1892 */
1893 static int
ciss_accept_media(struct ciss_softc * sc,struct ciss_ldrive * ld)1894 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1895 {
1896 struct ciss_request *cr;
1897 struct ciss_command *cc;
1898 struct ciss_bmic_cdb *cbc;
1899 int command_status;
1900 int error = 0, ldrive;
1901
1902 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1903
1904 debug(0, "bringing logical drive %d back online", ldrive);
1905
1906 /*
1907 * Build a CISS BMIC command to bring the drive back online.
1908 */
1909 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1910 NULL, 0)) != 0)
1911 goto out;
1912 cc = cr->cr_cc;
1913 cc->header.address = *ld->cl_controller; /* target controller */
1914 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1915 cbc->log_drive = ldrive;
1916
1917 /*
1918 * Submit the request and wait for it to complete.
1919 */
1920 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1921 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1922 goto out;
1923 }
1924
1925 /*
1926 * Check response.
1927 */
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 */
1932 break;
1933 default:
1934 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1935 ciss_name_command_status(command_status));
1936 break;
1937 }
1938
1939 out:
1940 if (cr != NULL)
1941 ciss_release_request(cr);
1942 return(error);
1943 }
1944
1945 /************************************************************************
1946 * Release adapter resources.
1947 */
1948 static void
ciss_free(struct ciss_softc * sc)1949 ciss_free(struct ciss_softc *sc)
1950 {
1951 struct ciss_request *cr;
1952 int i, j;
1953
1954 debug_called(1);
1955
1956 /* we're going away */
1957 sc->ciss_flags |= CISS_FLAG_ABORTING;
1958
1959 /* terminate the periodic heartbeat routine */
1960 callout_stop(&sc->ciss_periodic);
1961
1962 /* cancel the Event Notify chain */
1963 ciss_notify_abort(sc);
1964
1965 ciss_kill_notify_thread(sc);
1966
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);
1973 }
1974 }
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);
1980 }
1981 }
1982 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1983 }
1984 if (sc->ciss_cam_devq)
1985 cam_simq_free(sc->ciss_cam_devq);
1986
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);
1991
1992 /* Final cleanup of the callout. */
1993 callout_drain(&sc->ciss_periodic);
1994 mtx_destroy(&sc->ciss_mtx);
1995
1996 /* free the controller data */
1997 if (sc->ciss_id != NULL)
1998 free(sc->ciss_id, CISS_MALLOC_CLASS);
1999
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);
2012 if (sc->ciss_msi)
2013 pci_release_msi(sc->ciss_dev);
2014
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);
2019
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);
2024 }
2025 if (sc->ciss_command_dmat)
2026 bus_dma_tag_destroy(sc->ciss_command_dmat);
2027
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);
2031 }
2032 if (sc->ciss_reply_dmat)
2033 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2034
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);
2045 }
2046 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2047 }
2048 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2049 }
2050
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);
2055 }
2056
2057 if (sc->ciss_controllers)
2058 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2059
2060 }
2061
2062 /************************************************************************
2063 * Give a command to the adapter.
2064 *
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
2067 * sort.
2068 *
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).
2073 */
2074 static int
ciss_start(struct ciss_request * cr)2075 ciss_start(struct ciss_request *cr)
2076 {
2077 struct ciss_command *cc; /* XXX debugging only */
2078 int error;
2079
2080 cc = cr->cr_cc;
2081 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2082
2083 /*
2084 * Map the request's data.
2085 */
2086 if ((error = ciss_map_request(cr)))
2087 return(error);
2088
2089 #if 0
2090 ciss_print_request(cr);
2091 #endif
2092
2093 return(0);
2094 }
2095
2096 /************************************************************************
2097 * Fetch completed request(s) from the adapter, queue them for
2098 * completion handling.
2099 *
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
2102 * sort.
2103 *
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.)
2109 */
2110 static void
ciss_done(struct ciss_softc * sc,cr_qhead_t * qh)2111 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2112 {
2113 struct ciss_request *cr;
2114 struct ciss_command *cc;
2115 u_int32_t tag, index;
2116
2117 debug_called(3);
2118
2119 /*
2120 * Loop quickly taking requests from the adapter and moving them
2121 * to the completed queue.
2122 */
2123 for (;;) {
2124
2125 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2126 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2127 break;
2128 index = tag >> 2;
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);
2133 continue;
2134 }
2135 cr = &(sc->ciss_request[index]);
2136 cc = cr->cr_cc;
2137 cc->header.host_tag = tag; /* not updated by adapter */
2138 ciss_enqueue_complete(cr, qh);
2139 }
2140
2141 }
2142
2143 static void
ciss_perf_done(struct ciss_softc * sc,cr_qhead_t * qh)2144 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2145 {
2146 struct ciss_request *cr;
2147 struct ciss_command *cc;
2148 u_int32_t tag, index;
2149
2150 debug_called(3);
2151
2152 /*
2153 * Loop quickly taking requests from the adapter and moving them
2154 * to the completed queue.
2155 */
2156 for (;;) {
2157 tag = sc->ciss_reply[sc->ciss_rqidx];
2158 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2159 break;
2160 index = tag >> 2;
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]);
2165 cc = cr->cr_cc;
2166 cc->header.host_tag = tag; /* not updated by adapter */
2167 ciss_enqueue_complete(cr, qh);
2168 } else {
2169 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2170 }
2171 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2172 sc->ciss_rqidx = 0;
2173 sc->ciss_cycle ^= 1;
2174 }
2175 }
2176
2177 }
2178
2179 /************************************************************************
2180 * Take an interrupt from the adapter.
2181 */
2182 static void
ciss_intr(void * arg)2183 ciss_intr(void *arg)
2184 {
2185 cr_qhead_t qh;
2186 struct ciss_softc *sc = (struct ciss_softc *)arg;
2187
2188 /*
2189 * The only interrupt we recognise indicates that there are
2190 * entries in the outbound post queue.
2191 */
2192 STAILQ_INIT(&qh);
2193 ciss_done(sc, &qh);
2194 mtx_lock(&sc->ciss_mtx);
2195 ciss_complete(sc, &qh);
2196 mtx_unlock(&sc->ciss_mtx);
2197 }
2198
2199 static void
ciss_perf_intr(void * arg)2200 ciss_perf_intr(void *arg)
2201 {
2202 struct ciss_softc *sc = (struct ciss_softc *)arg;
2203
2204 /* Clear the interrupt and flush the bridges. Docs say that the flush
2205 * needs to be done twice, which doesn't seem right.
2206 */
2207 CISS_TL_PERF_CLEAR_INT(sc);
2208 CISS_TL_PERF_FLUSH_INT(sc);
2209
2210 ciss_perf_msi_intr(sc);
2211 }
2212
2213 static void
ciss_perf_msi_intr(void * arg)2214 ciss_perf_msi_intr(void *arg)
2215 {
2216 cr_qhead_t qh;
2217 struct ciss_softc *sc = (struct ciss_softc *)arg;
2218
2219 STAILQ_INIT(&qh);
2220 ciss_perf_done(sc, &qh);
2221 mtx_lock(&sc->ciss_mtx);
2222 ciss_complete(sc, &qh);
2223 mtx_unlock(&sc->ciss_mtx);
2224 }
2225
2226
2227 /************************************************************************
2228 * Process completed requests.
2229 *
2230 * Requests can be completed in three fashions:
2231 *
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
2235 */
2236 static void
ciss_complete(struct ciss_softc * sc,cr_qhead_t * qh)2237 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2238 {
2239 struct ciss_request *cr;
2240
2241 debug_called(2);
2242
2243 /*
2244 * Loop taking requests off the completed queue and performing
2245 * completion processing on them.
2246 */
2247 for (;;) {
2248 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2249 break;
2250 ciss_unmap_request(cr);
2251
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;
2255
2256 /*
2257 * If the request has a callback, invoke it.
2258 */
2259 if (cr->cr_complete != NULL) {
2260 cr->cr_complete(cr);
2261 continue;
2262 }
2263
2264 /*
2265 * If someone is sleeping on this request, wake them up.
2266 */
2267 if (cr->cr_flags & CISS_REQ_SLEEP) {
2268 cr->cr_flags &= ~CISS_REQ_SLEEP;
2269 wakeup(cr);
2270 continue;
2271 }
2272
2273 /*
2274 * If someone is polling this request for completion, signal.
2275 */
2276 if (cr->cr_flags & CISS_REQ_POLL) {
2277 cr->cr_flags &= ~CISS_REQ_POLL;
2278 continue;
2279 }
2280
2281 /*
2282 * Give up and throw the request back on the free queue. This
2283 * should never happen; resources will probably be lost.
2284 */
2285 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2286 ciss_enqueue_free(cr);
2287 }
2288 }
2289
2290 /************************************************************************
2291 * Report on the completion status of a request, and pass back SCSI
2292 * and command status values.
2293 */
2294 static int
_ciss_report_request(struct ciss_request * cr,int * command_status,int * scsi_status,const char * func)2295 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2296 {
2297 struct ciss_command *cc;
2298 struct ciss_error_info *ce;
2299
2300 debug_called(2);
2301
2302 cc = cr->cr_cc;
2303 ce = (struct ciss_error_info *)&(cc->sg[0]);
2304
2305 /*
2306 * We don't consider data under/overrun an error for the Report
2307 * Logical/Physical LUNs commands.
2308 */
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");
2317 }
2318
2319 /*
2320 * Check the command's error bit, if clear, there's no status and
2321 * everything is OK.
2322 */
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;
2328 return(0);
2329 } else {
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;
2335 } else {
2336 *scsi_status = -1;
2337 }
2338 }
2339 if (bootverbose)
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),
2342 ce->scsi_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,
2348 func);
2349 }
2350 }
2351 #if 0
2352 ciss_print_request(cr);
2353 #endif
2354 return(1);
2355 }
2356
2357 /************************************************************************
2358 * Issue a request and don't return until it's completed.
2359 *
2360 * Depending on adapter status, we may poll or sleep waiting for
2361 * completion.
2362 */
2363 static int
ciss_synch_request(struct ciss_request * cr,int timeout)2364 ciss_synch_request(struct ciss_request *cr, int timeout)
2365 {
2366 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2367 return(ciss_wait_request(cr, timeout));
2368 } else {
2369 return(ciss_poll_request(cr, timeout));
2370 }
2371 }
2372
2373 /************************************************************************
2374 * Issue a request and poll for completion.
2375 *
2376 * Timeout in milliseconds.
2377 */
2378 static int
ciss_poll_request(struct ciss_request * cr,int timeout)2379 ciss_poll_request(struct ciss_request *cr, int timeout)
2380 {
2381 cr_qhead_t qh;
2382 struct ciss_softc *sc;
2383 int error;
2384
2385 debug_called(2);
2386
2387 STAILQ_INIT(&qh);
2388 sc = cr->cr_sc;
2389 cr->cr_flags |= CISS_REQ_POLL;
2390 if ((error = ciss_start(cr)) != 0)
2391 return(error);
2392
2393 do {
2394 if (sc->ciss_perf)
2395 ciss_perf_done(sc, &qh);
2396 else
2397 ciss_done(sc, &qh);
2398 ciss_complete(sc, &qh);
2399 if (!(cr->cr_flags & CISS_REQ_POLL))
2400 return(0);
2401 DELAY(1000);
2402 } while (timeout-- >= 0);
2403 return(EWOULDBLOCK);
2404 }
2405
2406 /************************************************************************
2407 * Issue a request and sleep waiting for completion.
2408 *
2409 * Timeout in milliseconds. Note that a spurious wakeup will reset
2410 * the timeout.
2411 */
2412 static int
ciss_wait_request(struct ciss_request * cr,int timeout)2413 ciss_wait_request(struct ciss_request *cr, int timeout)
2414 {
2415 int error;
2416
2417 debug_called(2);
2418
2419 cr->cr_flags |= CISS_REQ_SLEEP;
2420 if ((error = ciss_start(cr)) != 0)
2421 return(error);
2422
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);
2426 }
2427 return(error);
2428 }
2429
2430 #if 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.
2434 */
2435 static int
2436 ciss_abort_request(struct ciss_request *ar)
2437 {
2438 struct ciss_request *cr;
2439 struct ciss_command *cc;
2440 struct ciss_message_cdb *cmc;
2441 int error;
2442
2443 debug_called(1);
2444
2445 /* get a request */
2446 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2447 return(error);
2448
2449 /* build the abort command */
2450 cc = cr->cr_cc;
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;
2459
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?? */
2464
2465 /*
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
2468 * running.
2469 */
2470 error = ciss_synch_request(cr, 35 * 1000);
2471 if (!error)
2472 error = ciss_report_request(cr, NULL, NULL);
2473 ciss_release_request(cr);
2474
2475 return(error);
2476 }
2477 #endif
2478
2479
2480 /************************************************************************
2481 * Fetch and initialise a request
2482 */
2483 static int
ciss_get_request(struct ciss_softc * sc,struct ciss_request ** crp)2484 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2485 {
2486 struct ciss_request *cr;
2487
2488 debug_called(2);
2489
2490 /*
2491 * Get a request and clean it up.
2492 */
2493 if ((cr = ciss_dequeue_free(sc)) == NULL)
2494 return(ENOMEM);
2495
2496 cr->cr_data = NULL;
2497 cr->cr_flags = 0;
2498 cr->cr_complete = NULL;
2499 cr->cr_private = NULL;
2500 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2501
2502 ciss_preen_command(cr);
2503 *crp = cr;
2504 return(0);
2505 }
2506
2507 static void
ciss_preen_command(struct ciss_request * cr)2508 ciss_preen_command(struct ciss_request *cr)
2509 {
2510 struct ciss_command *cc;
2511 u_int32_t cmdphys;
2512
2513 /*
2514 * Clean up the command structure.
2515 *
2516 * Note that we set up the error_info structure here, since the
2517 * length can be overwritten by any command.
2518 */
2519 cc = cr->cr_cc;
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);
2528 }
2529
2530 /************************************************************************
2531 * Release a request to the free list.
2532 */
2533 static void
ciss_release_request(struct ciss_request * cr)2534 ciss_release_request(struct ciss_request *cr)
2535 {
2536 struct ciss_softc *sc;
2537
2538 debug_called(2);
2539
2540 sc = cr->cr_sc;
2541
2542 /* release the request to the free queue */
2543 ciss_requeue_free(cr);
2544 }
2545
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.
2549 */
2550 static int
ciss_get_bmic_request(struct ciss_softc * sc,struct ciss_request ** crp,int opcode,void ** bufp,size_t bufsize)2551 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2552 int opcode, void **bufp, size_t bufsize)
2553 {
2554 struct ciss_request *cr;
2555 struct ciss_command *cc;
2556 struct ciss_bmic_cdb *cbc;
2557 void *buf;
2558 int error;
2559 int dataout;
2560
2561 debug_called(2);
2562
2563 cr = NULL;
2564 buf = NULL;
2565
2566 /*
2567 * Get a request.
2568 */
2569 if ((error = ciss_get_request(sc, &cr)) != 0)
2570 goto out;
2571
2572 /*
2573 * Allocate data storage if requested, determine the data direction.
2574 */
2575 dataout = 0;
2576 if ((bufsize > 0) && (bufp != NULL)) {
2577 if (*bufp == NULL) {
2578 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2579 error = ENOMEM;
2580 goto out;
2581 }
2582 } else {
2583 buf = *bufp;
2584 dataout = 1; /* we are given a buffer, so we are writing */
2585 }
2586 }
2587
2588 /*
2589 * Build a CISS BMIC command to get the logical drive ID.
2590 */
2591 cr->cr_data = buf;
2592 cr->cr_length = bufsize;
2593 if (!dataout)
2594 cr->cr_flags = CISS_REQ_DATAIN;
2595
2596 cc = cr->cr_cc;
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;
2605
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);
2611
2612 out:
2613 if (error) {
2614 if (cr != NULL)
2615 ciss_release_request(cr);
2616 } else {
2617 *crp = cr;
2618 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2619 *bufp = buf;
2620 }
2621 return(error);
2622 }
2623
2624 /************************************************************************
2625 * Handle a command passed in from userspace.
2626 */
2627 static int
ciss_user_command(struct ciss_softc * sc,IOCTL_Command_struct * ioc)2628 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2629 {
2630 struct ciss_request *cr;
2631 struct ciss_command *cc;
2632 struct ciss_error_info *ce;
2633 int error = 0;
2634
2635 debug_called(1);
2636
2637 cr = NULL;
2638
2639 /*
2640 * Get a request.
2641 */
2642 while (ciss_get_request(sc, &cr) != 0)
2643 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2644 cc = cr->cr_cc;
2645
2646 /*
2647 * Allocate an in-kernel databuffer if required, copy in user data.
2648 */
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) {
2653 error = ENOMEM;
2654 goto out_unlocked;
2655 }
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);
2658 goto out_unlocked;
2659 }
2660 }
2661
2662 /*
2663 * Build the request based on the user command.
2664 */
2665 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2666 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2667
2668 /* XXX anything else to populate here? */
2669 mtx_lock(&sc->ciss_mtx);
2670
2671 /*
2672 * Run the command.
2673 */
2674 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2675 debug(0, "request failed - %d", error);
2676 goto out;
2677 }
2678
2679 /*
2680 * Check to see if the command succeeded.
2681 */
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));
2685
2686 /*
2687 * Copy the results back to the user.
2688 */
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);
2694 goto out_unlocked;
2695 }
2696
2697 /* done OK */
2698 error = 0;
2699
2700 out_unlocked:
2701 mtx_lock(&sc->ciss_mtx);
2702
2703 out:
2704 if ((cr != NULL) && (cr->cr_data != NULL))
2705 free(cr->cr_data, CISS_MALLOC_CLASS);
2706 if (cr != NULL)
2707 ciss_release_request(cr);
2708 return(error);
2709 }
2710
2711 /************************************************************************
2712 * Map a request into bus-visible space, initialise the scatter/gather
2713 * list.
2714 */
2715 static int
ciss_map_request(struct ciss_request * cr)2716 ciss_map_request(struct ciss_request *cr)
2717 {
2718 struct ciss_softc *sc;
2719 int error = 0;
2720
2721 debug_called(2);
2722
2723 sc = cr->cr_sc;
2724
2725 /* check that mapping is necessary */
2726 if (cr->cr_flags & CISS_REQ_MAPPED)
2727 return(0);
2728
2729 cr->cr_flags |= CISS_REQ_MAPPED;
2730
2731 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2732 BUS_DMASYNC_PREWRITE);
2733
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);
2739 else
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);
2743 if (error != 0)
2744 return (error);
2745 } else {
2746 /*
2747 * Post the command to the adapter.
2748 */
2749 cr->cr_sg_tag = CISS_SG_NONE;
2750 cr->cr_flags |= CISS_REQ_BUSY;
2751 if (sc->ciss_perf)
2752 CISS_TL_PERF_POST_CMD(sc, cr);
2753 else
2754 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2755 }
2756
2757 return(0);
2758 }
2759
2760 static void
ciss_request_map_helper(void * arg,bus_dma_segment_t * segs,int nseg,int error)2761 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2762 {
2763 struct ciss_command *cc;
2764 struct ciss_request *cr;
2765 struct ciss_softc *sc;
2766 int i;
2767
2768 debug_called(2);
2769
2770 cr = (struct ciss_request *)arg;
2771 sc = cr->cr_sc;
2772 cc = cr->cr_cc;
2773
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;
2778 }
2779 /* we leave the s/g table entirely within the command */
2780 cc->header.sg_in_list = nseg;
2781 cc->header.sg_total = nseg;
2782
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);
2787
2788 if (nseg == 0)
2789 cr->cr_sg_tag = CISS_SG_NONE;
2790 else if (nseg == 1)
2791 cr->cr_sg_tag = CISS_SG_1;
2792 else if (nseg == 2)
2793 cr->cr_sg_tag = CISS_SG_2;
2794 else if (nseg <= 4)
2795 cr->cr_sg_tag = CISS_SG_4;
2796 else if (nseg <= 8)
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;
2802 else
2803 cr->cr_sg_tag = CISS_SG_MAX;
2804
2805 /*
2806 * Post the command to the adapter.
2807 */
2808 cr->cr_flags |= CISS_REQ_BUSY;
2809 if (sc->ciss_perf)
2810 CISS_TL_PERF_POST_CMD(sc, cr);
2811 else
2812 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2813 }
2814
2815 /************************************************************************
2816 * Unmap a request from bus-visible space.
2817 */
2818 static void
ciss_unmap_request(struct ciss_request * cr)2819 ciss_unmap_request(struct ciss_request *cr)
2820 {
2821 struct ciss_softc *sc;
2822
2823 debug_called(2);
2824
2825 sc = cr->cr_sc;
2826
2827 /* check that unmapping is necessary */
2828 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2829 return;
2830
2831 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2832 BUS_DMASYNC_POSTWRITE);
2833
2834 if (cr->cr_data == NULL)
2835 goto out;
2836
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);
2841
2842 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2843 out:
2844 cr->cr_flags &= ~CISS_REQ_MAPPED;
2845 }
2846
2847 /************************************************************************
2848 * Attach the driver to CAM.
2849 *
2850 * We put all the logical drives on a single SCSI bus.
2851 */
2852 static int
ciss_cam_init(struct ciss_softc * sc)2853 ciss_cam_init(struct ciss_softc *sc)
2854 {
2855 int i, maxbus;
2856
2857 debug_called(1);
2858
2859 /*
2860 * Allocate a devq. We can reuse this for the masked physical
2861 * devices if we decide to export these as well.
2862 */
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");
2865 return(ENOMEM);
2866 }
2867
2868 /*
2869 * Create a SIM.
2870 *
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.
2876 */
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");
2883 return(ENOMEM);
2884 }
2885
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,
2888 "ciss", sc,
2889 device_get_unit(sc->ciss_dev),
2890 &sc->ciss_mtx,
2891 2,
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);
2895 return(ENOMEM);
2896 }
2897
2898 /*
2899 * Register bus with this SIM.
2900 */
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);
2906 return (ENXIO);
2907 }
2908 }
2909 mtx_unlock(&sc->ciss_mtx);
2910 }
2911
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,
2915 "ciss", sc,
2916 device_get_unit(sc->ciss_dev),
2917 &sc->ciss_mtx, 1,
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);
2921 return (ENOMEM);
2922 }
2923
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);
2928 return (ENXIO);
2929 }
2930 mtx_unlock(&sc->ciss_mtx);
2931 }
2932
2933 return(0);
2934 }
2935
2936 /************************************************************************
2937 * Initiate a rescan of the 'logical devices' SIM
2938 */
2939 static void
ciss_cam_rescan_target(struct ciss_softc * sc,int bus,int target)2940 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2941 {
2942 union ccb *ccb;
2943
2944 debug_called(1);
2945
2946 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2947 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2948 return;
2949 }
2950
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");
2955 xpt_free_ccb(ccb);
2956 return;
2957 }
2958 xpt_rescan(ccb);
2959 /* scan is now in progress */
2960 }
2961
2962 /************************************************************************
2963 * Handle requests coming from CAM
2964 */
2965 static void
ciss_cam_action(struct cam_sim * sim,union ccb * ccb)2966 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2967 {
2968 struct ciss_softc *sc;
2969 struct ccb_scsiio *csio;
2970 int bus, target;
2971 int physical;
2972
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);
2978
2979 switch (ccb->ccb_h.func_code) {
2980
2981 /* perform SCSI I/O */
2982 case XPT_SCSI_IO:
2983 if (!ciss_cam_action_io(sim, csio))
2984 return;
2985 break;
2986
2987 /* perform geometry calculations */
2988 case XPT_CALC_GEOMETRY:
2989 {
2990 struct ccb_calc_geometry *ccg = &ccb->ccg;
2991 struct ciss_ldrive *ld;
2992
2993 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2994
2995 ld = NULL;
2996 if (!physical)
2997 ld = &sc->ciss_logical[bus][target];
2998
2999 /*
3000 * Use the cached geometry settings unless the fault tolerance
3001 * is invalid.
3002 */
3003 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3004 u_int32_t secs_per_cylinder;
3005
3006 ccg->heads = 255;
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;
3010 } else {
3011 ccg->heads = ld->cl_geometry.heads;
3012 ccg->secs_per_track = ld->cl_geometry.sectors;
3013 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3014 }
3015 ccb->ccb_h.status = CAM_REQ_CMP;
3016 break;
3017 }
3018
3019 /* handle path attribute inquiry */
3020 case XPT_PATH_INQ:
3021 {
3022 struct ccb_pathinq *cpi = &ccb->cpi;
3023 int sg_length;
3024
3025 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3026
3027 cpi->version_num = 1;
3028 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3029 cpi->target_sprt = 0;
3030 cpi->hba_misc = 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) {
3045 sg_length = 17;
3046 } else {
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.
3055 */
3056 sg_length = sc->ciss_cfg->max_sg_length - 1;
3057 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3058 }
3059 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3060 ccb->ccb_h.status = CAM_REQ_CMP;
3061 break;
3062 }
3063
3064 case XPT_GET_TRAN_SETTINGS:
3065 {
3066 struct ccb_trans_settings *cts = &ccb->cts;
3067 int bus, target;
3068 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3069 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3070
3071 bus = cam_sim_bus(sim);
3072 target = cts->ccb_h.target_id;
3073
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;
3080
3081 spi->valid = CTS_SPI_VALID_DISC;
3082 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3083
3084 scsi->valid = CTS_SCSI_VALID_TQ;
3085 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3086
3087 cts->ccb_h.status = CAM_REQ_CMP;
3088 break;
3089 }
3090
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;
3094 break;
3095 }
3096
3097 xpt_done(ccb);
3098 }
3099
3100 /************************************************************************
3101 * Handle a CAM SCSI I/O request.
3102 */
3103 static int
ciss_cam_action_io(struct cam_sim * sim,struct ccb_scsiio * csio)3104 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3105 {
3106 struct ciss_softc *sc;
3107 int bus, target;
3108 struct ciss_request *cr;
3109 struct ciss_command *cc;
3110 int error;
3111
3112 sc = cam_sim_softc(sim);
3113 bus = cam_sim_bus(sim);
3114 target = csio->ccb_h.target_id;
3115
3116 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3117
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;
3122 }
3123
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");
3127 return(EINVAL);
3128 }
3129
3130 /* handle emulation of some SCSI commands ourself */
3131 if (ciss_cam_emulate(sc, csio))
3132 return(0);
3133
3134 /*
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.
3138 */
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;
3143 return(error);
3144 }
3145
3146 /*
3147 * Build the command.
3148 */
3149 cc = cr->cr_cc;
3150 cr->cr_data = csio;
3151 cr->cr_length = csio->dxfer_len;
3152 cr->cr_complete = ciss_cam_complete;
3153 cr->cr_private = csio;
3154
3155 /*
3156 * Target the right logical volume.
3157 */
3158 if (CISS_IS_PHYSICAL(bus))
3159 cc->header.address =
3160 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3161 else
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;
3173 } else {
3174 cr->cr_data = NULL;
3175 cr->cr_flags = 0;
3176 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3177 }
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);
3181 } else {
3182 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3183 }
3184
3185 /*
3186 * Submit the request to the adapter.
3187 *
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).
3191 */
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) {
3196 error = 0;
3197 } else {
3198 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3199 ciss_release_request(cr);
3200 }
3201 return(error);
3202 }
3203
3204 return(0);
3205 }
3206
3207 /************************************************************************
3208 * Emulate SCSI commands the adapter doesn't handle as we might like.
3209 */
3210 static int
ciss_cam_emulate(struct ciss_softc * sc,struct ccb_scsiio * csio)3211 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3212 {
3213 int bus, target;
3214 u_int8_t opcode;
3215
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];
3220
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);
3225 return(1);
3226 } else
3227 return(0);
3228 }
3229
3230 /*
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.
3234 */
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);
3238 return(1);
3239 }
3240
3241 /* if we have to fake Synchronise Cache */
3242 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3243 /*
3244 * If this is a Synchronise Cache command, typically issued when
3245 * a device is closed, flush the adapter and complete now.
3246 */
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);
3252 return(1);
3253 }
3254 }
3255
3256 /*
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
3261 */
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);
3266 return(1);
3267 }
3268
3269 return(0);
3270 }
3271
3272 /************************************************************************
3273 * Check for possibly-completed commands.
3274 */
3275 static void
ciss_cam_poll(struct cam_sim * sim)3276 ciss_cam_poll(struct cam_sim *sim)
3277 {
3278 cr_qhead_t qh;
3279 struct ciss_softc *sc = cam_sim_softc(sim);
3280
3281 debug_called(2);
3282
3283 STAILQ_INIT(&qh);
3284 if (sc->ciss_perf)
3285 ciss_perf_done(sc, &qh);
3286 else
3287 ciss_done(sc, &qh);
3288 ciss_complete(sc, &qh);
3289 }
3290
3291 /************************************************************************
3292 * Handle completion of a command - pass results back through the CCB
3293 */
3294 static void
ciss_cam_complete(struct ciss_request * cr)3295 ciss_cam_complete(struct ciss_request *cr)
3296 {
3297 struct ciss_softc *sc;
3298 struct ciss_command *cc;
3299 struct ciss_error_info *ce;
3300 struct ccb_scsiio *csio;
3301 int scsi_status;
3302 int command_status;
3303
3304 debug_called(2);
3305
3306 sc = cr->cr_sc;
3307 cc = cr->cr_cc;
3308 ce = (struct ciss_error_info *)&(cc->sg[0]);
3309 csio = (struct ccb_scsiio *)cr->cr_private;
3310
3311 /*
3312 * Extract status values from request.
3313 */
3314 ciss_report_request(cr, &command_status, &scsi_status);
3315 csio->scsi_status = scsi_status;
3316
3317 /*
3318 * Handle specific SCSI status values.
3319 */
3320 switch(scsi_status) {
3321 /* no status due to adapter error */
3322 case -1:
3323 debug(0, "adapter error");
3324 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3325 break;
3326
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;
3331 break;
3332
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;
3341 else
3342 csio->sense_resid = 0;
3343 csio->resid = ce->residual_count;
3344 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3345 #ifdef CISS_DEBUG
3346 {
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));
3350 }
3351 #endif
3352 break;
3353
3354 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3355 debug(0, "SCSI_STATUS_BUSY");
3356 csio->ccb_h.status |= CAM_SCSI_BUSY;
3357 break;
3358
3359 default:
3360 debug(0, "unknown status 0x%x", csio->scsi_status);
3361 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3362 break;
3363 }
3364
3365 /* handle post-command fixup */
3366 ciss_cam_complete_fixup(sc, csio);
3367
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);
3373 else
3374 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3375 }
3376 xpt_done((union ccb *)csio);
3377 }
3378
3379 /********************************************************************************
3380 * Fix up the result of some commands here.
3381 */
3382 static void
ciss_cam_complete_fixup(struct ciss_softc * sc,struct ccb_scsiio * csio)3383 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3384 {
3385 struct scsi_inquiry_data *inq;
3386 struct ciss_ldrive *cl;
3387 uint8_t *cdb;
3388 int bus, target;
3389
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) {
3396
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));
3400
3401 /*
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
3406 */
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;
3411 return;
3412 }
3413 cl = &sc->ciss_logical[bus][target];
3414
3415 padstr(inq->vendor, "HP",
3416 SID_VENDOR_SIZE);
3417 padstr(inq->product,
3418 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3419 SID_PRODUCT_SIZE);
3420 padstr(inq->revision,
3421 ciss_name_ldrive_status(cl->cl_lstatus->status),
3422 SID_REVISION_SIZE);
3423 }
3424 }
3425 }
3426
3427
3428 /********************************************************************************
3429 * Name the device at (target)
3430 *
3431 * XXX is this strictly correct?
3432 */
3433 static int
ciss_name_device(struct ciss_softc * sc,int bus,int target)3434 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3435 {
3436 struct cam_periph *periph;
3437 struct cam_path *path;
3438 int status;
3439
3440 if (CISS_IS_PHYSICAL(bus))
3441 return (0);
3442
3443 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3444 target, 0);
3445
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);
3454 return(0);
3455 }
3456 }
3457 sc->ciss_logical[bus][target].cl_name[0] = 0;
3458 return(ENOENT);
3459 }
3460
3461 /************************************************************************
3462 * Periodic status monitoring.
3463 */
3464 static void
ciss_periodic(void * arg)3465 ciss_periodic(void *arg)
3466 {
3467 struct ciss_softc *sc;
3468 struct ciss_request *cr = NULL;
3469 struct ciss_command *cc = NULL;
3470 int error = 0;
3471
3472 debug_called(1);
3473
3474 sc = (struct ciss_softc *)arg;
3475
3476 /*
3477 * Check the adapter heartbeat.
3478 */
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);
3486 return;
3487 }
3488 } else {
3489 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3490 sc->ciss_heart_attack = 0;
3491 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3492 }
3493
3494 /*
3495 * Send the NOP message and wait for a response.
3496 */
3497 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3498 cc = cr->cr_cc;
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;
3506
3507 if ((error = ciss_start(cr)) != 0) {
3508 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3509 }
3510 }
3511
3512 /*
3513 * If the notify event request has died for some reason, or has
3514 * not started yet, restart it.
3515 */
3516 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3517 debug(0, "(re)starting Event Notify chain");
3518 ciss_notify_event(sc);
3519 }
3520
3521 /*
3522 * Reschedule.
3523 */
3524 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3525 }
3526
3527 static void
ciss_nop_complete(struct ciss_request * cr)3528 ciss_nop_complete(struct ciss_request *cr)
3529 {
3530 struct ciss_softc *sc;
3531 static int first_time = 1;
3532
3533 sc = cr->cr_sc;
3534 if (ciss_report_request(cr, NULL, NULL) != 0) {
3535 if (first_time == 1) {
3536 first_time = 0;
3537 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3538 }
3539 }
3540
3541 ciss_release_request(cr);
3542 }
3543
3544 /************************************************************************
3545 * Disable the adapter.
3546 *
3547 * The all requests in completed queue is failed with hardware error.
3548 * This will cause failover in a multipath configuration.
3549 */
3550 static void
ciss_disable_adapter(struct ciss_softc * sc)3551 ciss_disable_adapter(struct ciss_softc *sc)
3552 {
3553 cr_qhead_t qh;
3554 struct ciss_request *cr;
3555 struct ciss_command *cc;
3556 struct ciss_error_info *ce;
3557 int i;
3558
3559 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3560 pci_disable_busmaster(sc->ciss_dev);
3561 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3562
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)
3566 continue;
3567
3568 cc = cr->cr_cc;
3569 ce = (struct ciss_error_info *)&(cc->sg[0]);
3570 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3571 ciss_enqueue_complete(cr, &qh);
3572 }
3573
3574 for (;;) {
3575 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3576 break;
3577
3578 /*
3579 * If the request has a callback, invoke it.
3580 */
3581 if (cr->cr_complete != NULL) {
3582 cr->cr_complete(cr);
3583 continue;
3584 }
3585
3586 /*
3587 * If someone is sleeping on this request, wake them up.
3588 */
3589 if (cr->cr_flags & CISS_REQ_SLEEP) {
3590 cr->cr_flags &= ~CISS_REQ_SLEEP;
3591 wakeup(cr);
3592 continue;
3593 }
3594 }
3595 }
3596
3597 /************************************************************************
3598 * Request a notification response from the adapter.
3599 *
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.
3603 */
3604 static void
ciss_notify_event(struct ciss_softc * sc)3605 ciss_notify_event(struct ciss_softc *sc)
3606 {
3607 struct ciss_request *cr;
3608 struct ciss_command *cc;
3609 struct ciss_notify_cdb *cnc;
3610 int error;
3611
3612 debug_called(1);
3613
3614 cr = sc->ciss_periodic_notify;
3615
3616 /* get a request if we don't already have one */
3617 if (cr == NULL) {
3618 if ((error = ciss_get_request(sc, &cr)) != 0) {
3619 debug(0, "can't get notify event request");
3620 goto out;
3621 }
3622 sc->ciss_periodic_notify = cr;
3623 cr->cr_complete = ciss_notify_complete;
3624 debug(1, "acquired request %d", cr->cr_tag);
3625 }
3626
3627 /*
3628 * Get a databuffer if we don't already have one, note that the
3629 * adapter command wants a larger buffer than the actual
3630 * structure.
3631 */
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");
3635 error = ENOMEM;
3636 goto out;
3637 }
3638 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3639 }
3640
3641 /* re-setup the request's command (since we never release it) XXX overkill*/
3642 ciss_preen_command(cr);
3643
3644 /* (re)build the notify event command */
3645 cc = cr->cr_cc;
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;
3649
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 */
3655
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;
3662 cnc->ordered = 0;
3663 cnc->seek_to_oldest = 0;
3664 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3665 cnc->new_only = 1;
3666 else
3667 cnc->new_only = 0;
3668 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3669
3670 /* submit the request */
3671 error = ciss_start(cr);
3672
3673 out:
3674 if (error) {
3675 if (cr != NULL) {
3676 if (cr->cr_data != NULL)
3677 free(cr->cr_data, CISS_MALLOC_CLASS);
3678 ciss_release_request(cr);
3679 }
3680 sc->ciss_periodic_notify = NULL;
3681 debug(0, "can't submit notify event request");
3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3683 } else {
3684 debug(1, "notify event submitted");
3685 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3686 }
3687 }
3688
3689 static void
ciss_notify_complete(struct ciss_request * cr)3690 ciss_notify_complete(struct ciss_request *cr)
3691 {
3692 struct ciss_command *cc;
3693 struct ciss_notify *cn;
3694 struct ciss_softc *sc;
3695 int scsi_status;
3696 int command_status;
3697 debug_called(1);
3698
3699 cc = cr->cr_cc;
3700 cn = (struct ciss_notify *)cr->cr_data;
3701 sc = cr->cr_sc;
3702
3703 /*
3704 * Report request results, decode status.
3705 */
3706 ciss_report_request(cr, &command_status, &scsi_status);
3707
3708 /*
3709 * Abort the chain on a fatal error.
3710 *
3711 * XXX which of these are actually errors?
3712 */
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;
3720 return;
3721 }
3722
3723 /*
3724 * If the adapter gave us a text message, print it.
3725 */
3726 if (cn->message[0] != 0)
3727 ciss_printf(sc, "*** %.80s\n", cn->message);
3728
3729 debug(0, "notify event class %d subclass %d detail %d",
3730 cn->class, cn->subclass, cn->detail);
3731
3732 /*
3733 * If the response indicates that the notifier has been aborted,
3734 * release the notifier command.
3735 */
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);
3744 } else {
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);
3750 }
3751 /*
3752 * Send a new notify event command, if we're not aborting.
3753 */
3754 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3755 ciss_notify_event(sc);
3756 }
3757 }
3758
3759 /************************************************************************
3760 * Abort the Notify Event chain.
3761 *
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.
3765 *
3766 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3767 * the chain will not restart itself.
3768 */
3769 static int
ciss_notify_abort(struct ciss_softc * sc)3770 ciss_notify_abort(struct ciss_softc *sc)
3771 {
3772 struct ciss_request *cr;
3773 struct ciss_command *cc;
3774 struct ciss_notify_cdb *cnc;
3775 int error, command_status, scsi_status;
3776
3777 debug_called(1);
3778
3779 cr = NULL;
3780 error = 0;
3781
3782 /* verify that there's an outstanding command */
3783 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3784 goto out;
3785
3786 /* get a command to issue the abort with */
3787 if ((error = ciss_get_request(sc, &cr)))
3788 goto out;
3789
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");
3793 error = ENOMEM;
3794 goto out;
3795 }
3796 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3797
3798 /* build the CDB */
3799 cc = cr->cr_cc;
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 */
3808
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);
3814
3815 ciss_print_request(cr);
3816
3817 /*
3818 * Submit the request and wait for it to complete.
3819 */
3820 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3821 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3822 goto out;
3823 }
3824
3825 /*
3826 * Check response.
3827 */
3828 ciss_report_request(cr, &command_status, &scsi_status);
3829 switch(command_status) {
3830 case CISS_CMD_STATUS_SUCCESS:
3831 break;
3832 case CISS_CMD_STATUS_INVALID_COMMAND:
3833 /*
3834 * Some older adapters don't support the CISS version of this
3835 * command. Fall back to using the BMIC version.
3836 */
3837 error = ciss_notify_abort_bmic(sc);
3838 if (error != 0)
3839 goto out;
3840 break;
3841
3842 case CISS_CMD_STATUS_TARGET_STATUS:
3843 /*
3844 * This can happen if the adapter thinks there wasn't an outstanding
3845 * Notify Event command but we did. We clean up here.
3846 */
3847 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3848 if (sc->ciss_periodic_notify != NULL)
3849 ciss_release_request(sc->ciss_periodic_notify);
3850 error = 0;
3851 goto out;
3852 }
3853 /* FALLTHROUGH */
3854
3855 default:
3856 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3857 ciss_name_command_status(command_status));
3858 error = EIO;
3859 goto out;
3860 }
3861
3862 /*
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.
3868 */
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");
3873 break;
3874 }
3875 }
3876
3877 out:
3878 /* release the cancel request */
3879 if (cr != NULL) {
3880 if (cr->cr_data != NULL)
3881 free(cr->cr_data, CISS_MALLOC_CLASS);
3882 ciss_release_request(cr);
3883 }
3884 if (error == 0)
3885 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3886 return(error);
3887 }
3888
3889 /************************************************************************
3890 * Abort the Notify Event chain using a BMIC command.
3891 */
3892 static int
ciss_notify_abort_bmic(struct ciss_softc * sc)3893 ciss_notify_abort_bmic(struct ciss_softc *sc)
3894 {
3895 struct ciss_request *cr;
3896 int error, command_status;
3897
3898 debug_called(1);
3899
3900 cr = NULL;
3901 error = 0;
3902
3903 /* verify that there's an outstanding command */
3904 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3905 goto out;
3906
3907 /*
3908 * Build a BMIC command to cancel the Notify on Event command.
3909 *
3910 * Note that we are sending a CISS opcode here. Odd.
3911 */
3912 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3913 NULL, 0)) != 0)
3914 goto out;
3915
3916 /*
3917 * Submit the request and wait for it to complete.
3918 */
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);
3921 goto out;
3922 }
3923
3924 /*
3925 * Check response.
3926 */
3927 ciss_report_request(cr, &command_status, NULL);
3928 switch(command_status) {
3929 case CISS_CMD_STATUS_SUCCESS:
3930 break;
3931 default:
3932 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3933 ciss_name_command_status(command_status));
3934 error = EIO;
3935 goto out;
3936 }
3937
3938 out:
3939 if (cr != NULL)
3940 ciss_release_request(cr);
3941 return(error);
3942 }
3943
3944 /************************************************************************
3945 * Handle rescanning all the logical volumes when a notify event
3946 * causes the drives to come online or offline.
3947 */
3948 static void
ciss_notify_rescan_logical(struct ciss_softc * sc)3949 ciss_notify_rescan_logical(struct ciss_softc *sc)
3950 {
3951 struct ciss_lun_report *cll;
3952 struct ciss_ldrive *ld;
3953 int i, j, ndrives;
3954
3955 /*
3956 * We must rescan all logical volumes to get the right logical
3957 * drive address.
3958 */
3959 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3960 sc->ciss_cfg->max_logical_supported);
3961 if (cll == NULL)
3962 return;
3963
3964 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3965
3966 /*
3967 * Delete any of the drives which were destroyed by the
3968 * firmware.
3969 */
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];
3973
3974 if (ld->cl_update == 0)
3975 continue;
3976
3977 if (ld->cl_status != CISS_LD_ONLINE) {
3978 ciss_cam_rescan_target(sc, i, j);
3979 ld->cl_update = 0;
3980 if (ld->cl_ldrive)
3981 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3982 if (ld->cl_lstatus)
3983 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3984
3985 ld->cl_ldrive = NULL;
3986 ld->cl_lstatus = NULL;
3987 }
3988 }
3989 }
3990
3991 /*
3992 * Scan for new drives.
3993 */
3994 for (i = 0; i < ndrives; i++) {
3995 int bus, target;
3996
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];
4000
4001 if (ld->cl_update == 0)
4002 continue;
4003
4004 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);
4009 }
4010 }
4011 free(cll, CISS_MALLOC_CLASS);
4012 }
4013
4014 /************************************************************************
4015 * Handle a notify event relating to the status of a logical drive.
4016 *
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.
4020 */
4021 static void
ciss_notify_logical(struct ciss_softc * sc,struct ciss_notify * cn)4022 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4023 {
4024 struct ciss_ldrive *ld;
4025 int ostatus, bus, target;
4026
4027 debug_called(2);
4028
4029 bus = cn->device.physical.bus;
4030 target = cn->data.logical_status.logical_drive;
4031 ld = &sc->ciss_logical[bus][target];
4032
4033 switch (cn->subclass) {
4034 case CISS_NOTIFY_LOGICAL_STATUS:
4035 switch (cn->detail) {
4036 case 0:
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");
4044
4045 /*
4046 * Update our idea of the drive's status.
4047 */
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;
4052
4053 /*
4054 * Have CAM rescan the drive if its status has changed.
4055 */
4056 if (ostatus != ld->cl_status) {
4057 ld->cl_update = 1;
4058 ciss_notify_rescan_logical(sc);
4059 }
4060
4061 break;
4062
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);
4068
4069 ld->cl_update = 1;
4070 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4071 ciss_notify_rescan_logical(sc);
4072 break;
4073
4074 case 2:
4075 case 3:
4076 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4077 cn->data.rebuild_aborted.logical_drive,
4078 ld->cl_name,
4079 (cn->detail == 2) ? "read" : "write");
4080 break;
4081 }
4082 break;
4083
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,
4088 ld->cl_name,
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? */
4092 }
4093 break;
4094
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,
4099 ld->cl_name);
4100 break;
4101 }
4102 }
4103
4104 /************************************************************************
4105 * Handle a notify event relating to the status of a physical drive.
4106 */
4107 static void
ciss_notify_physical(struct ciss_softc * sc,struct ciss_notify * cn)4108 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4109 {
4110 }
4111
4112 /************************************************************************
4113 * Handle a notify event relating to the status of a physical drive.
4114 */
4115 static void
ciss_notify_hotplug(struct ciss_softc * sc,struct ciss_notify * cn)4116 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4117 {
4118 struct ciss_lun_report *cll = NULL;
4119 int bus, target;
4120
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);
4125 target =
4126 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4127
4128 if (cn->detail == 0) {
4129 /*
4130 * Mark the device offline so that it'll start producing selection
4131 * timeouts to the upper layer.
4132 */
4133 if ((bus >= 0) && (target >= 0))
4134 sc->ciss_physical[bus][target].cp_online = 0;
4135 } else {
4136 /*
4137 * Rescan the physical lun list for new items
4138 */
4139 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4140 sc->ciss_cfg->max_physical_supported);
4141 if (cll == NULL) {
4142 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4143 break;
4144 }
4145 ciss_filter_physical(sc, cll);
4146 }
4147 break;
4148
4149 default:
4150 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4151 return;
4152 }
4153
4154 if (cll != NULL)
4155 free(cll, CISS_MALLOC_CLASS);
4156 }
4157
4158 /************************************************************************
4159 * Handle deferred processing of notify events. Notify events may need
4160 * sleep which is unsafe during an interrupt.
4161 */
4162 static void
ciss_notify_thread(void * arg)4163 ciss_notify_thread(void *arg)
4164 {
4165 struct ciss_softc *sc;
4166 struct ciss_request *cr;
4167 struct ciss_notify *cn;
4168
4169 sc = (struct ciss_softc *)arg;
4170 mtx_lock(&sc->ciss_mtx);
4171
4172 for (;;) {
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);
4176 }
4177
4178 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4179 break;
4180
4181 cr = ciss_dequeue_notify(sc);
4182
4183 if (cr == NULL)
4184 panic("cr null");
4185 cn = (struct ciss_notify *)cr->cr_data;
4186
4187 switch (cn->class) {
4188 case CISS_NOTIFY_HOTPLUG:
4189 ciss_notify_hotplug(sc, cn);
4190 break;
4191 case CISS_NOTIFY_LOGICAL:
4192 ciss_notify_logical(sc, cn);
4193 break;
4194 case CISS_NOTIFY_PHYSICAL:
4195 ciss_notify_physical(sc, cn);
4196 break;
4197 }
4198
4199 ciss_release_request(cr);
4200
4201 }
4202 sc->ciss_notify_thread = NULL;
4203 wakeup(&sc->ciss_notify_thread);
4204
4205 mtx_unlock(&sc->ciss_mtx);
4206 kproc_exit(0);
4207 }
4208
4209 /************************************************************************
4210 * Start the notification kernel thread.
4211 */
4212 static void
ciss_spawn_notify_thread(struct ciss_softc * sc)4213 ciss_spawn_notify_thread(struct ciss_softc *sc)
4214 {
4215
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");
4220 }
4221
4222 /************************************************************************
4223 * Kill the notification kernel thread.
4224 */
4225 static void
ciss_kill_notify_thread(struct ciss_softc * sc)4226 ciss_kill_notify_thread(struct ciss_softc *sc)
4227 {
4228
4229 if (sc->ciss_notify_thread == NULL)
4230 return;
4231
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);
4235 }
4236
4237 /************************************************************************
4238 * Print a request.
4239 */
4240 static void
ciss_print_request(struct ciss_request * cr)4241 ciss_print_request(struct ciss_request *cr)
4242 {
4243 struct ciss_softc *sc;
4244 struct ciss_command *cc;
4245 int i;
4246
4247 sc = cr->cr_sc;
4248 cc = cr->cr_cc;
4249
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);
4261 break;
4262 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4263 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4264 break;
4265 }
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" : "??",
4270 cc->cdb.cdb_length,
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], " ");
4279
4280 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4281 /* XXX print error info */
4282 } else {
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++) {
4285 if ((i % 4) == 0)
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)))
4289 printf("\n");
4290 }
4291 }
4292 }
4293
4294 /************************************************************************
4295 * Print information about the status of a logical drive.
4296 */
4297 static void
ciss_print_ldrive(struct ciss_softc * sc,struct ciss_ldrive * ld)4298 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4299 {
4300 int bus, target, i;
4301
4302 if (ld->cl_lstatus == NULL) {
4303 printf("does not exist\n");
4304 return;
4305 }
4306
4307 /* print drive status */
4308 switch(ld->cl_lstatus->status) {
4309 case CISS_LSTATUS_OK:
4310 printf("online\n");
4311 break;
4312 case CISS_LSTATUS_INTERIM_RECOVERY:
4313 printf("in interim recovery mode\n");
4314 break;
4315 case CISS_LSTATUS_READY_RECOVERY:
4316 printf("ready to begin recovery\n");
4317 break;
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);
4323 break;
4324 case CISS_LSTATUS_EXPANDING:
4325 printf("being expanded, %u blocks remaining\n",
4326 ld->cl_lstatus->blocks_to_recover);
4327 break;
4328 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4329 printf("queued for expansion\n");
4330 break;
4331 case CISS_LSTATUS_FAILED:
4332 printf("queued for expansion\n");
4333 break;
4334 case CISS_LSTATUS_WRONG_PDRIVE:
4335 printf("wrong physical drive inserted\n");
4336 break;
4337 case CISS_LSTATUS_MISSING_PDRIVE:
4338 printf("missing a needed physical drive\n");
4339 break;
4340 case CISS_LSTATUS_BECOMING_READY:
4341 printf("becoming ready\n");
4342 break;
4343 }
4344
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]);
4349 if (bus == -1)
4350 continue;
4351 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4352 ld->cl_lstatus->drive_failure_map[i]);
4353 }
4354 }
4355
4356 #ifdef CISS_DEBUG
4357 #include "opt_ddb.h"
4358 #ifdef DDB
4359 #include <ddb/ddb.h>
4360 /************************************************************************
4361 * Print information about the controller/driver.
4362 */
4363 static void
ciss_print_adapter(struct ciss_softc * sc)4364 ciss_print_adapter(struct ciss_softc *sc)
4365 {
4366 int i, j;
4367
4368 ciss_printf(sc, "ADAPTER:\n");
4369 for (i = 0; i < CISSQ_COUNT; i++) {
4370 ciss_printf(sc, "%s %d/%d\n",
4371 i == 0 ? "free" :
4372 i == 1 ? "busy" : "complete",
4373 sc->ciss_qstat[i].q_length,
4374 sc->ciss_qstat[i].q_max);
4375 }
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");
4379
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]);
4384 }
4385 }
4386
4387 /* XXX Should physical drives be printed out here? */
4388
4389 for (i = 1; i < sc->ciss_max_requests; i++)
4390 ciss_print_request(sc->ciss_request + i);
4391 }
4392
4393 /* DDB hook */
DB_COMMAND(ciss_prt,db_ciss_prt)4394 DB_COMMAND(ciss_prt, db_ciss_prt)
4395 {
4396 struct ciss_softc *sc;
4397 devclass_t dc;
4398 int maxciss, i;
4399
4400 dc = devclass_find("ciss");
4401 if ( dc == NULL ) {
4402 printf("%s: can't find devclass!\n", __func__);
4403 return;
4404 }
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);
4409 }
4410 }
4411 #endif
4412 #endif
4413
4414 /************************************************************************
4415 * Return a name for a logical drive status value.
4416 */
4417 static const char *
ciss_name_ldrive_status(int status)4418 ciss_name_ldrive_status(int status)
4419 {
4420 switch (status) {
4421 case CISS_LSTATUS_OK:
4422 return("OK");
4423 case CISS_LSTATUS_FAILED:
4424 return("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");
4443 }
4444 return("unknown status");
4445 }
4446
4447 /************************************************************************
4448 * Return an online/offline/nonexistent value for a logical drive
4449 * status value.
4450 */
4451 static int
ciss_decode_ldrive_status(int status)4452 ciss_decode_ldrive_status(int status)
4453 {
4454 switch(status) {
4455 case CISS_LSTATUS_NOT_CONFIGURED:
4456 return(CISS_LD_NONEXISTENT);
4457
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);
4465
4466 case CISS_LSTATUS_FAILED:
4467 case CISS_LSTATUS_WRONG_PDRIVE:
4468 case CISS_LSTATUS_MISSING_PDRIVE:
4469 case CISS_LSTATUS_BECOMING_READY:
4470 default:
4471 return(CISS_LD_OFFLINE);
4472 }
4473 }
4474
4475
4476 /************************************************************************
4477 * Return a name for a logical drive's organisation.
4478 */
4479 static const char *
ciss_name_ldrive_org(int org)4480 ciss_name_ldrive_org(int org)
4481 {
4482 switch(org) {
4483 case CISS_LDRIVE_RAID0:
4484 return("RAID 0");
4485 case CISS_LDRIVE_RAID1:
4486 return("RAID 1(1+0)");
4487 case CISS_LDRIVE_RAID4:
4488 return("RAID 4");
4489 case CISS_LDRIVE_RAID5:
4490 return("RAID 5");
4491 case CISS_LDRIVE_RAID51:
4492 return("RAID 5+1");
4493 case CISS_LDRIVE_RAIDADG:
4494 return("RAID ADG");
4495 }
4496 return("unknown");
4497 }
4498
4499 /************************************************************************
4500 * Return a name for a command status value.
4501 */
4502 static const char *
ciss_name_command_status(int status)4503 ciss_name_command_status(int status)
4504 {
4505 switch(status) {
4506 case CISS_CMD_STATUS_SUCCESS:
4507 return("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:
4523 return("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:
4529 return("timeout");
4530 case CISS_CMD_STATUS_UNABORTABLE:
4531 return("unabortable");
4532 }
4533 return("unknown status");
4534 }
4535
4536 /************************************************************************
4537 * Handle an open on the control device.
4538 */
4539 static int
ciss_open(struct cdev * dev,int flags,int fmt,struct thread * p)4540 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4541 {
4542 struct ciss_softc *sc;
4543
4544 debug_called(1);
4545
4546 sc = (struct ciss_softc *)dev->si_drv1;
4547
4548 /* we might want to veto if someone already has us open */
4549
4550 mtx_lock(&sc->ciss_mtx);
4551 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4552 mtx_unlock(&sc->ciss_mtx);
4553 return(0);
4554 }
4555
4556 /************************************************************************
4557 * Handle the last close on the control device.
4558 */
4559 static int
ciss_close(struct cdev * dev,int flags,int fmt,struct thread * p)4560 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4561 {
4562 struct ciss_softc *sc;
4563
4564 debug_called(1);
4565
4566 sc = (struct ciss_softc *)dev->si_drv1;
4567
4568 mtx_lock(&sc->ciss_mtx);
4569 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4570 mtx_unlock(&sc->ciss_mtx);
4571 return (0);
4572 }
4573
4574 /********************************************************************************
4575 * Handle adapter-specific control operations.
4576 *
4577 * Note that the API here is compatible with the Linux driver, in order to
4578 * simplify the porting of Compaq's userland tools.
4579 */
4580 static int
ciss_ioctl(struct cdev * dev,u_long cmd,caddr_t addr,int32_t flag,struct thread * p)4581 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4582 {
4583 struct ciss_softc *sc;
4584 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4585 #ifdef __amd64__
4586 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4587 IOCTL_Command_struct ioc_swab;
4588 #endif
4589 int error;
4590
4591 debug_called(1);
4592
4593 sc = (struct ciss_softc *)dev->si_drv1;
4594 error = 0;
4595 mtx_lock(&sc->ciss_mtx);
4596
4597 switch(cmd) {
4598 case CCISS_GETQSTATS:
4599 {
4600 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4601
4602 switch (cr->cs_item) {
4603 case CISSQ_FREE:
4604 case CISSQ_NOTIFY:
4605 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4606 sizeof(struct ciss_qstat));
4607 break;
4608 default:
4609 error = ENOIOCTL;
4610 break;
4611 }
4612
4613 break;
4614 }
4615
4616 case CCISS_GETPCIINFO:
4617 {
4618 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4619
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);
4624
4625 break;
4626 }
4627
4628 case CCISS_GETINTINFO:
4629 {
4630 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4631
4632 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4633 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4634
4635 break;
4636 }
4637
4638 case CCISS_SETINTINFO:
4639 {
4640 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4641
4642 if ((cis->delay == 0) && (cis->count == 0)) {
4643 error = EINVAL;
4644 break;
4645 }
4646
4647 /*
4648 * XXX apparently this is only safe if the controller is idle,
4649 * we should suspend it before doing this.
4650 */
4651 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4652 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4653
4654 if (ciss_update_config(sc))
4655 error = EIO;
4656
4657 /* XXX resume the controller here */
4658 break;
4659 }
4660
4661 case CCISS_GETNODENAME:
4662 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4663 sizeof(NodeName_type));
4664 break;
4665
4666 case CCISS_SETNODENAME:
4667 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4668 sizeof(NodeName_type));
4669 if (ciss_update_config(sc))
4670 error = EIO;
4671 break;
4672
4673 case CCISS_GETHEARTBEAT:
4674 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4675 break;
4676
4677 case CCISS_GETBUSTYPES:
4678 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4679 break;
4680
4681 case CCISS_GETFIRMVER:
4682 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4683 sizeof(FirmwareVer_type));
4684 break;
4685
4686 case CCISS_GETDRIVERVER:
4687 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4688 break;
4689
4690 case CCISS_REVALIDVOLS:
4691 /*
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(
4697 */
4698 break;
4699
4700 #ifdef __amd64__
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;
4707 ioc = &ioc_swab;
4708 /* FALLTHROUGH */
4709 #endif
4710
4711 case CCISS_PASSTHRU:
4712 error = ciss_user_command(sc, ioc);
4713 break;
4714
4715 default:
4716 debug(0, "unknown ioctl 0x%lx", cmd);
4717
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);
4729
4730 error = ENOIOCTL;
4731 break;
4732 }
4733
4734 mtx_unlock(&sc->ciss_mtx);
4735 return(error);
4736 }
4737