1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
30 /*
31 * Common Interface for SCSI-3 Support driver.
32 *
33 * CISS claims to provide a common interface between a generic SCSI
34 * transport and an intelligent host adapter.
35 *
36 * This driver supports CISS as defined in the document "CISS Command
37 * Interface for SCSI-3 Support Open Specification", Version 1.04,
38 * Valence Number 1, dated 20001127, produced by Compaq Computer
39 * Corporation. This document appears to be a hastily and somewhat
40 * arbitrarlily cut-down version of a larger (and probably even more
41 * chaotic and inconsistent) Compaq internal document. Various
42 * details were also gleaned from Compaq's "cciss" driver for Linux.
43 *
44 * We provide a shim layer between the CISS interface and CAM,
45 * offloading most of the queueing and being-a-disk chores onto CAM.
46 * Entry to the driver is via the PCI bus attachment (ciss_probe,
47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
49 * citizens and we have to fake up some responses to get reasonable
50 * behaviour out of them. In addition, the CISS command set is by no
51 * means adequate to support the functionality of a RAID controller,
52 * and thus the supported Compaq adapters utilise portions of the
53 * control protocol from earlier Compaq adapter families.
54 *
55 * Note that we only support the "simple" transport layer over PCI.
56 * This interface (ab)uses the I2O register set (specifically the post
57 * queues) to exchange commands with the adapter. Other interfaces
58 * are available, but we aren't supposed to know about them, and it is
59 * dubious whether they would provide major performance improvements
60 * except under extreme load.
61 *
62 * Currently the only supported CISS adapters are the Compaq Smart
63 * Array 5* series (5300, 5i, 532). Even with only three adapters,
64 * Compaq still manage to have interface variations.
65 *
66 *
67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
68 * well as Paul Saab at Yahoo! for their assistance in making this
69 * driver happen.
70 *
71 * More thanks must go to John Cagle at HP for the countless hours
72 * spent making this driver "work" with the MSA* series storage
73 * enclosures. Without his help (and nagging), this driver could not
74 * be used with these enclosures.
75 */
76
77 #include <sys/param.h>
78 #include <sys/systm.h>
79 #include <sys/malloc.h>
80 #include <sys/kernel.h>
81 #include <sys/bus.h>
82 #include <sys/conf.h>
83 #include <sys/stat.h>
84 #include <sys/kthread.h>
85 #include <sys/queue.h>
86 #include <sys/sysctl.h>
87
88 #include <cam/cam.h>
89 #include <cam/cam_ccb.h>
90 #include <cam/cam_periph.h>
91 #include <cam/cam_sim.h>
92 #include <cam/cam_xpt_sim.h>
93 #include <cam/scsi/scsi_all.h>
94 #include <cam/scsi/scsi_message.h>
95
96 #include <machine/bus.h>
97 #include <machine/endian.h>
98 #include <machine/resource.h>
99 #include <sys/rman.h>
100
101 #include <dev/pci/pcireg.h>
102 #include <dev/pci/pcivar.h>
103
104 #include <dev/ciss/cissreg.h>
105 #include <dev/ciss/cissio.h>
106 #include <dev/ciss/cissvar.h>
107
108 #ifdef CISS_DEBUG
109 #include "opt_ddb.h"
110 #endif
111
112 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
113 "ciss internal data buffers");
114
115 /* pci interface */
116 static int ciss_lookup(device_t dev);
117 static int ciss_probe(device_t dev);
118 static int ciss_attach(device_t dev);
119 static int ciss_detach(device_t dev);
120 static int ciss_shutdown(device_t dev);
121
122 /* (de)initialisation functions, control wrappers */
123 static int ciss_init_pci(struct ciss_softc *sc);
124 static int ciss_setup_msix(struct ciss_softc *sc);
125 static int ciss_init_perf(struct ciss_softc *sc);
126 static int ciss_wait_adapter(struct ciss_softc *sc);
127 static int ciss_flush_adapter(struct ciss_softc *sc);
128 static int ciss_init_requests(struct ciss_softc *sc);
129 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
130 int nseg, int error);
131 static int ciss_identify_adapter(struct ciss_softc *sc);
132 static int ciss_init_logical(struct ciss_softc *sc);
133 static int ciss_init_physical(struct ciss_softc *sc);
134 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
135 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
136 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
137 static int ciss_update_config(struct ciss_softc *sc);
138 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
139 static void ciss_init_sysctl(struct ciss_softc *sc);
140 static void ciss_soft_reset(struct ciss_softc *sc);
141 static void ciss_free(struct ciss_softc *sc);
142 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
143 static void ciss_kill_notify_thread(struct ciss_softc *sc);
144
145 /* request submission/completion */
146 static int ciss_start(struct ciss_request *cr);
147 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
148 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
149 static void ciss_intr(void *arg);
150 static void ciss_perf_intr(void *arg);
151 static void ciss_perf_msi_intr(void *arg);
152 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
153 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
154 static int ciss_synch_request(struct ciss_request *cr, int timeout);
155 static int ciss_poll_request(struct ciss_request *cr, int timeout);
156 static int ciss_wait_request(struct ciss_request *cr, int timeout);
157 #if 0
158 static int ciss_abort_request(struct ciss_request *cr);
159 #endif
160
161 /* request queueing */
162 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
163 static void ciss_preen_command(struct ciss_request *cr);
164 static void ciss_release_request(struct ciss_request *cr);
165
166 /* request helpers */
167 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
168 int opcode, void **bufp, size_t bufsize);
169 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
170
171 /* DMA map/unmap */
172 static int ciss_map_request(struct ciss_request *cr);
173 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
174 int nseg, int error);
175 static void ciss_unmap_request(struct ciss_request *cr);
176
177 /* CAM interface */
178 static int ciss_cam_init(struct ciss_softc *sc);
179 static void ciss_cam_rescan_target(struct ciss_softc *sc,
180 int bus, int target);
181 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
182 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
183 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
184 static void ciss_cam_poll(struct cam_sim *sim);
185 static void ciss_cam_complete(struct ciss_request *cr);
186 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
187 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
188
189 /* periodic status monitoring */
190 static void ciss_periodic(void *arg);
191 static void ciss_nop_complete(struct ciss_request *cr);
192 static void ciss_disable_adapter(struct ciss_softc *sc);
193 static void ciss_notify_event(struct ciss_softc *sc);
194 static void ciss_notify_complete(struct ciss_request *cr);
195 static int ciss_notify_abort(struct ciss_softc *sc);
196 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
197 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
198 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
199 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
200
201 /* debugging output */
202 #ifdef DDB
203 static void ciss_print_request(struct ciss_request *cr);
204 #endif
205 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
206 static const char *ciss_name_ldrive_status(int status);
207 static int ciss_decode_ldrive_status(int status);
208 static const char *ciss_name_ldrive_org(int org);
209 static const char *ciss_name_command_status(int status);
210
211 /*
212 * PCI bus interface.
213 */
214 static device_method_t ciss_methods[] = {
215 /* Device interface */
216 DEVMETHOD(device_probe, ciss_probe),
217 DEVMETHOD(device_attach, ciss_attach),
218 DEVMETHOD(device_detach, ciss_detach),
219 DEVMETHOD(device_shutdown, ciss_shutdown),
220 { 0, 0 }
221 };
222
223 static driver_t ciss_pci_driver = {
224 "ciss",
225 ciss_methods,
226 sizeof(struct ciss_softc)
227 };
228
229 /*
230 * Control device interface.
231 */
232 static d_open_t ciss_open;
233 static d_close_t ciss_close;
234 static d_ioctl_t ciss_ioctl;
235
236 static struct cdevsw ciss_cdevsw = {
237 .d_version = D_VERSION,
238 .d_flags = 0,
239 .d_open = ciss_open,
240 .d_close = ciss_close,
241 .d_ioctl = ciss_ioctl,
242 .d_name = "ciss",
243 };
244
245 SYSCTL_NODE(_hw, OID_AUTO, ciss, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "CISS sysctl tunables");
246
247 /*
248 * This tunable can be used to force a specific initiator id
249 */
250 static int ciss_initiator_id = CAM_TARGET_WILDCARD;
251 SYSCTL_INT(_hw_ciss, OID_AUTO, initiator_id, CTLFLAG_RDTUN,
252 &ciss_initiator_id, 0,
253 "force a specific initiator id");
254
255 /*
256 * This tunable can be used to force a specific initiator id
257 */
258 static int ciss_base_transfer_speed = 132 * 1024;
259 SYSCTL_INT(_hw_ciss, OID_AUTO, base_transfer_speed, CTLFLAG_RDTUN,
260 &ciss_base_transfer_speed, 0,
261 "force a specific base transfer_speed");
262
263 /*
264 * This tunable can be set to make the driver be more verbose
265 */
266 static int ciss_verbose = 0;
267 SYSCTL_INT(_hw_ciss, OID_AUTO, verbose, CTLFLAG_RWTUN, &ciss_verbose, 0,
268 "enable verbose messages");
269
270 /*
271 * This tunable can be set at boot time and controls whether physical devices
272 * that are marked hidden by the firmware should be exposed anyways.
273 */
274 static unsigned int ciss_expose_hidden_physical = 0;
275 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
276 SYSCTL_INT(_hw_ciss, OID_AUTO, expose_hidden_physical, CTLFLAG_RWTUN,
277 &ciss_expose_hidden_physical, 0,
278 "expose hidden physical drives");
279
280 static unsigned int ciss_nop_message_heartbeat = 0;
281 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
282 SYSCTL_INT(_hw_ciss, OID_AUTO, nop_message_heartbeat, CTLFLAG_RWTUN,
283 &ciss_nop_message_heartbeat, 0,
284 "nop heartbeat messages");
285
286 /*
287 * This tunable can force a particular transport to be used:
288 * <= 0 : use default
289 * 1 : force simple
290 * 2 : force performant
291 */
292 static int ciss_force_transport = 0;
293 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
294 SYSCTL_INT(_hw_ciss, OID_AUTO, force_transport, CTLFLAG_RDTUN,
295 &ciss_force_transport, 0,
296 "use default (0), force simple (1) or force performant (2) transport");
297
298 /*
299 * This tunable can force a particular interrupt delivery method to be used:
300 * <= 0 : use default
301 * 1 : force INTx
302 * 2 : force MSIX
303 */
304 static int ciss_force_interrupt = 0;
305 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
306 SYSCTL_INT(_hw_ciss, OID_AUTO, force_interrupt, CTLFLAG_RDTUN,
307 &ciss_force_interrupt, 0,
308 "use default (0), force INTx (1) or force MSIx(2) interrupts");
309
310 /************************************************************************
311 * CISS adapters amazingly don't have a defined programming interface
312 * value. (One could say some very despairing things about PCI and
313 * people just not getting the general idea.) So we are forced to
314 * stick with matching against subvendor/subdevice, and thus have to
315 * be updated for every new CISS adapter that appears.
316 */
317 #define CISS_BOARD_UNKNOWN 0
318 #define CISS_BOARD_SA5 1
319 #define CISS_BOARD_SA5B 2
320 #define CISS_BOARD_NOMSI (1<<4)
321 #define CISS_BOARD_SIMPLE (1<<5)
322
323 static struct
324 {
325 u_int16_t subvendor;
326 u_int16_t subdevice;
327 int flags;
328 char *desc;
329 } ciss_vendor_data[] = {
330 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
331 "Compaq Smart Array 5300" },
332 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
333 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
334 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
335 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
336 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
337 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
338 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
339 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
340 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
341 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
342 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
343 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
344 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
345 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
346 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
347 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
348 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
349 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
350 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
351 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
352 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
353 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
354 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
355 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
356 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
357 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
358 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
359 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
360 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
361 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
362 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
363 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
364 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
365 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
366 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
367 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
368 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
369 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
370 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
371 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
372 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
373 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
374 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
375 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
376 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
377 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
378 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
379 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
380 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
381 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
382 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
383 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
384 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
385 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
386 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
387 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
388 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
389 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
390 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
391 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
392 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
393 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
394 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
395 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
396 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
397 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
398 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
399 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" },
400 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
401 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
402 { 0, 0, 0, NULL }
403 };
404
405 DRIVER_MODULE(ciss, pci, ciss_pci_driver, 0, 0);
406 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data,
407 nitems(ciss_vendor_data) - 1);
408 MODULE_DEPEND(ciss, cam, 1, 1, 1);
409 MODULE_DEPEND(ciss, pci, 1, 1, 1);
410
411 /************************************************************************
412 * Find a match for the device in our list of known adapters.
413 */
414 static int
ciss_lookup(device_t dev)415 ciss_lookup(device_t dev)
416 {
417 int i;
418
419 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
420 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
421 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
422 return(i);
423 }
424 return(-1);
425 }
426
427 /************************************************************************
428 * Match a known CISS adapter.
429 */
430 static int
ciss_probe(device_t dev)431 ciss_probe(device_t dev)
432 {
433 int i;
434
435 i = ciss_lookup(dev);
436 if (i != -1) {
437 device_set_desc(dev, ciss_vendor_data[i].desc);
438 return(BUS_PROBE_DEFAULT);
439 }
440 return(ENOENT);
441 }
442
443 /************************************************************************
444 * Attach the driver to this adapter.
445 */
446 static int
ciss_attach(device_t dev)447 ciss_attach(device_t dev)
448 {
449 struct ciss_softc *sc;
450 int error;
451
452 debug_called(1);
453
454 #ifdef CISS_DEBUG
455 /* print structure/union sizes */
456 debug_struct(ciss_command);
457 debug_struct(ciss_header);
458 debug_union(ciss_device_address);
459 debug_struct(ciss_cdb);
460 debug_struct(ciss_report_cdb);
461 debug_struct(ciss_notify_cdb);
462 debug_struct(ciss_notify);
463 debug_struct(ciss_message_cdb);
464 debug_struct(ciss_error_info_pointer);
465 debug_struct(ciss_error_info);
466 debug_struct(ciss_sg_entry);
467 debug_struct(ciss_config_table);
468 debug_struct(ciss_bmic_cdb);
469 debug_struct(ciss_bmic_id_ldrive);
470 debug_struct(ciss_bmic_id_lstatus);
471 debug_struct(ciss_bmic_id_table);
472 debug_struct(ciss_bmic_id_pdrive);
473 debug_struct(ciss_bmic_blink_pdrive);
474 debug_struct(ciss_bmic_flush_cache);
475 debug_const(CISS_MAX_REQUESTS);
476 debug_const(CISS_MAX_LOGICAL);
477 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
478 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
479 debug_const(CISS_COMMAND_ALLOC_SIZE);
480 debug_const(CISS_COMMAND_SG_LENGTH);
481
482 debug_type(cciss_pci_info_struct);
483 debug_type(cciss_coalint_struct);
484 debug_type(cciss_coalint_struct);
485 debug_type(NodeName_type);
486 debug_type(NodeName_type);
487 debug_type(Heartbeat_type);
488 debug_type(BusTypes_type);
489 debug_type(FirmwareVer_type);
490 debug_type(DriverVer_type);
491 debug_type(IOCTL_Command_struct);
492 #endif
493
494 sc = device_get_softc(dev);
495 sc->ciss_dev = dev;
496 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
497 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
498
499 /*
500 * Do PCI-specific init.
501 */
502 if ((error = ciss_init_pci(sc)) != 0)
503 goto out;
504
505 /*
506 * Initialise driver queues.
507 */
508 ciss_initq_free(sc);
509 ciss_initq_notify(sc);
510
511 /*
512 * Initialize device sysctls.
513 */
514 ciss_init_sysctl(sc);
515
516 /*
517 * Initialise command/request pool.
518 */
519 if ((error = ciss_init_requests(sc)) != 0)
520 goto out;
521
522 /*
523 * Get adapter information.
524 */
525 if ((error = ciss_identify_adapter(sc)) != 0)
526 goto out;
527
528 /*
529 * Find all the physical devices.
530 */
531 if ((error = ciss_init_physical(sc)) != 0)
532 goto out;
533
534 /*
535 * Build our private table of logical devices.
536 */
537 if ((error = ciss_init_logical(sc)) != 0)
538 goto out;
539
540 /*
541 * Enable interrupts so that the CAM scan can complete.
542 */
543 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
544
545 /*
546 * Initialise the CAM interface.
547 */
548 if ((error = ciss_cam_init(sc)) != 0)
549 goto out;
550
551 /*
552 * Start the heartbeat routine and event chain.
553 */
554 ciss_periodic(sc);
555
556 /*
557 * Create the control device.
558 */
559 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
560 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
561 "ciss%d", device_get_unit(sc->ciss_dev));
562 sc->ciss_dev_t->si_drv1 = sc;
563
564 /*
565 * The adapter is running; synchronous commands can now sleep
566 * waiting for an interrupt to signal completion.
567 */
568 sc->ciss_flags |= CISS_FLAG_RUNNING;
569
570 ciss_spawn_notify_thread(sc);
571
572 error = 0;
573 out:
574 if (error != 0) {
575 /* ciss_free() expects the mutex to be held */
576 mtx_lock(&sc->ciss_mtx);
577 ciss_free(sc);
578 }
579 return(error);
580 }
581
582 /************************************************************************
583 * Detach the driver from this adapter.
584 */
585 static int
ciss_detach(device_t dev)586 ciss_detach(device_t dev)
587 {
588 struct ciss_softc *sc = device_get_softc(dev);
589
590 debug_called(1);
591
592 mtx_lock(&sc->ciss_mtx);
593 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
594 mtx_unlock(&sc->ciss_mtx);
595 return (EBUSY);
596 }
597
598 /* flush adapter cache */
599 ciss_flush_adapter(sc);
600
601 /* release all resources. The mutex is released and freed here too. */
602 ciss_free(sc);
603
604 return(0);
605 }
606
607 /************************************************************************
608 * Prepare adapter for system shutdown.
609 */
610 static int
ciss_shutdown(device_t dev)611 ciss_shutdown(device_t dev)
612 {
613 struct ciss_softc *sc = device_get_softc(dev);
614
615 debug_called(1);
616
617 mtx_lock(&sc->ciss_mtx);
618 /* flush adapter cache */
619 ciss_flush_adapter(sc);
620
621 if (sc->ciss_soft_reset)
622 ciss_soft_reset(sc);
623 mtx_unlock(&sc->ciss_mtx);
624
625 return(0);
626 }
627
628 static void
ciss_init_sysctl(struct ciss_softc * sc)629 ciss_init_sysctl(struct ciss_softc *sc)
630 {
631
632 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
633 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
634 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
635 }
636
637 /************************************************************************
638 * Perform PCI-specific attachment actions.
639 */
640 static int
ciss_init_pci(struct ciss_softc * sc)641 ciss_init_pci(struct ciss_softc *sc)
642 {
643 uintptr_t cbase, csize, cofs;
644 uint32_t method, supported_methods;
645 int error, sqmask, i;
646 void *intr;
647
648 debug_called(1);
649
650 /*
651 * Work out adapter type.
652 */
653 i = ciss_lookup(sc->ciss_dev);
654 if (i < 0) {
655 ciss_printf(sc, "unknown adapter type\n");
656 return (ENXIO);
657 }
658
659 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
660 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
661 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
662 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
663 } else {
664 /*
665 * XXX Big hammer, masks/unmasks all possible interrupts. This should
666 * work on all hardware variants. Need to add code to handle the
667 * "controller crashed" interrupt bit that this unmasks.
668 */
669 sqmask = ~0;
670 }
671
672 /*
673 * Allocate register window first (we need this to find the config
674 * struct).
675 */
676 error = ENXIO;
677 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
678 if ((sc->ciss_regs_resource =
679 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
680 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
681 ciss_printf(sc, "can't allocate register window\n");
682 return(ENXIO);
683 }
684 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
685 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
686
687 /*
688 * Find the BAR holding the config structure. If it's not the one
689 * we already mapped for registers, map it too.
690 */
691 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
692 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
693 if ((sc->ciss_cfg_resource =
694 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
695 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
696 ciss_printf(sc, "can't allocate config window\n");
697 return(ENXIO);
698 }
699 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
700 csize = rman_get_end(sc->ciss_cfg_resource) -
701 rman_get_start(sc->ciss_cfg_resource) + 1;
702 } else {
703 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
704 csize = rman_get_end(sc->ciss_regs_resource) -
705 rman_get_start(sc->ciss_regs_resource) + 1;
706 }
707 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
708
709 /*
710 * Use the base/size/offset values we just calculated to
711 * sanity-check the config structure. If it's OK, point to it.
712 */
713 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
714 ciss_printf(sc, "config table outside window\n");
715 return(ENXIO);
716 }
717 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
718 debug(1, "config struct at %p", sc->ciss_cfg);
719
720 /*
721 * Calculate the number of request structures/commands we are
722 * going to provide for this adapter.
723 */
724 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
725
726 /*
727 * Validate the config structure. If we supported other transport
728 * methods, we could select amongst them at this point in time.
729 */
730 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
731 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
732 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
733 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
734 return(ENXIO);
735 }
736
737 /*
738 * Select the mode of operation, prefer Performant.
739 */
740 if (!(sc->ciss_cfg->supported_methods &
741 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
742 ciss_printf(sc, "No supported transport layers: 0x%x\n",
743 sc->ciss_cfg->supported_methods);
744 }
745
746 switch (ciss_force_transport) {
747 case 1:
748 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
749 break;
750 case 2:
751 supported_methods = CISS_TRANSPORT_METHOD_PERF;
752 break;
753 default:
754 /*
755 * Override the capabilities of the BOARD and specify SIMPLE
756 * MODE
757 */
758 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
759 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
760 else
761 supported_methods = sc->ciss_cfg->supported_methods;
762 break;
763 }
764
765 setup:
766 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
767 method = CISS_TRANSPORT_METHOD_PERF;
768 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
769 sc->ciss_cfg->transport_offset);
770 if (ciss_init_perf(sc)) {
771 supported_methods &= ~method;
772 goto setup;
773 }
774 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
775 method = CISS_TRANSPORT_METHOD_SIMPLE;
776 } else {
777 ciss_printf(sc, "No supported transport methods: 0x%x\n",
778 sc->ciss_cfg->supported_methods);
779 return(ENXIO);
780 }
781
782 /*
783 * Tell it we're using the low 4GB of RAM. Set the default interrupt
784 * coalescing options.
785 */
786 sc->ciss_cfg->requested_method = method;
787 sc->ciss_cfg->command_physlimit = 0;
788 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
789 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
790
791 #ifdef __i386__
792 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
793 #endif
794
795 if (ciss_update_config(sc)) {
796 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
797 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
798 return(ENXIO);
799 }
800 if ((sc->ciss_cfg->active_method & method) == 0) {
801 supported_methods &= ~method;
802 if (supported_methods == 0) {
803 ciss_printf(sc, "adapter refuses to go into available transports "
804 "mode (0x%x, 0x%x)\n", supported_methods,
805 sc->ciss_cfg->active_method);
806 return(ENXIO);
807 } else
808 goto setup;
809 }
810
811 /*
812 * Wait for the adapter to come ready.
813 */
814 if ((error = ciss_wait_adapter(sc)) != 0)
815 return(error);
816
817 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
818 * interrupts have a rid of 0, this will be overridden if MSIX is used.
819 */
820 sc->ciss_irq_rid[0] = 0;
821 if (method == CISS_TRANSPORT_METHOD_PERF) {
822 ciss_printf(sc, "PERFORMANT Transport\n");
823 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
824 intr = ciss_perf_msi_intr;
825 } else {
826 intr = ciss_perf_intr;
827 }
828 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
829 * Unfortunately, there is no good way to know if this is a SAS
830 * controller. Hopefully enabling this bit universally will work OK.
831 * It seems to work fine for SA6i controllers.
832 */
833 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
834
835 } else {
836 ciss_printf(sc, "SIMPLE Transport\n");
837 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
838 if (ciss_force_interrupt == 2)
839 /* If this fails, we automatically revert to INTx */
840 ciss_setup_msix(sc);
841 sc->ciss_perf = NULL;
842 intr = ciss_intr;
843 sc->ciss_interrupt_mask = sqmask;
844 }
845
846 /*
847 * Turn off interrupts before we go routing anything.
848 */
849 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
850
851 /*
852 * Allocate and set up our interrupt.
853 */
854 if ((sc->ciss_irq_resource =
855 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
856 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
857 ciss_printf(sc, "can't allocate interrupt\n");
858 return(ENXIO);
859 }
860
861 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
862 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
863 &sc->ciss_intr)) {
864 ciss_printf(sc, "can't set up interrupt\n");
865 return(ENXIO);
866 }
867
868 /*
869 * Allocate the parent bus DMA tag appropriate for our PCI
870 * interface.
871 *
872 * Note that "simple" adapters can only address within a 32-bit
873 * span.
874 */
875 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
876 1, 0, /* alignment, boundary */
877 BUS_SPACE_MAXADDR, /* lowaddr */
878 BUS_SPACE_MAXADDR, /* highaddr */
879 NULL, NULL, /* filter, filterarg */
880 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
881 BUS_SPACE_UNRESTRICTED, /* nsegments */
882 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
883 0, /* flags */
884 NULL, NULL, /* lockfunc, lockarg */
885 &sc->ciss_parent_dmat)) {
886 ciss_printf(sc, "can't allocate parent DMA tag\n");
887 return(ENOMEM);
888 }
889
890 /*
891 * Create DMA tag for mapping buffers into adapter-addressable
892 * space.
893 */
894 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
895 1, 0, /* alignment, boundary */
896 BUS_SPACE_MAXADDR, /* lowaddr */
897 BUS_SPACE_MAXADDR, /* highaddr */
898 NULL, NULL, /* filter, filterarg */
899 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
900 CISS_MAX_SG_ELEMENTS, /* nsegments */
901 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
902 BUS_DMA_ALLOCNOW, /* flags */
903 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
904 &sc->ciss_buffer_dmat)) {
905 ciss_printf(sc, "can't allocate buffer DMA tag\n");
906 return(ENOMEM);
907 }
908 return(0);
909 }
910
911 /************************************************************************
912 * Setup MSI/MSIX operation (Performant only)
913 * Four interrupts are available, but we only use 1 right now. If MSI-X
914 * isn't avaialble, try using MSI instead.
915 */
916 static int
ciss_setup_msix(struct ciss_softc * sc)917 ciss_setup_msix(struct ciss_softc *sc)
918 {
919 int val, i;
920
921 /* Weed out devices that don't actually support MSI */
922 i = ciss_lookup(sc->ciss_dev);
923 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
924 return (EINVAL);
925
926 /*
927 * Only need to use the minimum number of MSI vectors, as the driver
928 * doesn't support directed MSIX interrupts.
929 */
930 val = pci_msix_count(sc->ciss_dev);
931 if (val < CISS_MSI_COUNT) {
932 val = pci_msi_count(sc->ciss_dev);
933 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
934 if (val < CISS_MSI_COUNT)
935 return (EINVAL);
936 }
937 val = MIN(val, CISS_MSI_COUNT);
938 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
939 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
940 return (EINVAL);
941 }
942
943 sc->ciss_msi = val;
944 if (bootverbose || ciss_verbose)
945 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
946 (val != 1) ? "s" : "");
947
948 for (i = 0; i < val; i++)
949 sc->ciss_irq_rid[i] = i + 1;
950
951 return (0);
952
953 }
954
955 /************************************************************************
956 * Setup the Performant structures.
957 */
958 static int
ciss_init_perf(struct ciss_softc * sc)959 ciss_init_perf(struct ciss_softc *sc)
960 {
961 struct ciss_perf_config *pc = sc->ciss_perf;
962 int reply_size;
963
964 /*
965 * Create the DMA tag for the reply queue.
966 */
967 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
968 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
969 1, 0, /* alignment, boundary */
970 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
971 BUS_SPACE_MAXADDR, /* highaddr */
972 NULL, NULL, /* filter, filterarg */
973 reply_size, 1, /* maxsize, nsegments */
974 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
975 0, /* flags */
976 NULL, NULL, /* lockfunc, lockarg */
977 &sc->ciss_reply_dmat)) {
978 ciss_printf(sc, "can't allocate reply DMA tag\n");
979 return(ENOMEM);
980 }
981 /*
982 * Allocate memory and make it available for DMA.
983 */
984 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
985 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
986 ciss_printf(sc, "can't allocate reply memory\n");
987 return(ENOMEM);
988 }
989 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
990 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
991 bzero(sc->ciss_reply, reply_size);
992
993 sc->ciss_cycle = 0x1;
994 sc->ciss_rqidx = 0;
995
996 /*
997 * Preload the fetch table with common command sizes. This allows the
998 * hardware to not waste bus cycles for typical i/o commands, but also not
999 * tax the driver to be too exact in choosing sizes. The table is optimized
1000 * for page-aligned i/o's, but since most i/o comes from the various pagers,
1001 * it's a reasonable assumption to make.
1002 */
1003 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
1004 pc->fetch_count[CISS_SG_FETCH_1] =
1005 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
1006 pc->fetch_count[CISS_SG_FETCH_2] =
1007 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
1008 pc->fetch_count[CISS_SG_FETCH_4] =
1009 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
1010 pc->fetch_count[CISS_SG_FETCH_8] =
1011 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
1012 pc->fetch_count[CISS_SG_FETCH_16] =
1013 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
1014 pc->fetch_count[CISS_SG_FETCH_32] =
1015 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
1016 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
1017
1018 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
1019 pc->rq_count = 1; /* XXX Hardcode for a single queue */
1020 pc->rq_bank_hi = 0;
1021 pc->rq_bank_lo = 0;
1022 pc->rq[0].rq_addr_hi = 0x0;
1023 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
1024
1025 return(0);
1026 }
1027
1028 /************************************************************************
1029 * Wait for the adapter to come ready.
1030 */
1031 static int
ciss_wait_adapter(struct ciss_softc * sc)1032 ciss_wait_adapter(struct ciss_softc *sc)
1033 {
1034 int i;
1035
1036 debug_called(1);
1037
1038 /*
1039 * Wait for the adapter to come ready.
1040 */
1041 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
1042 ciss_printf(sc, "waiting for adapter to come ready...\n");
1043 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1044 DELAY(1000000); /* one second */
1045 if (i > 30) {
1046 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1047 return(EIO);
1048 }
1049 }
1050 }
1051 return(0);
1052 }
1053
1054 /************************************************************************
1055 * Flush the adapter cache.
1056 */
1057 static int
ciss_flush_adapter(struct ciss_softc * sc)1058 ciss_flush_adapter(struct ciss_softc *sc)
1059 {
1060 struct ciss_request *cr;
1061 struct ciss_bmic_flush_cache *cbfc;
1062 int error, command_status;
1063
1064 debug_called(1);
1065
1066 cr = NULL;
1067 cbfc = NULL;
1068
1069 /*
1070 * Build a BMIC request to flush the cache. We don't disable
1071 * it, as we may be going to do more I/O (eg. we are emulating
1072 * the Synchronise Cache command).
1073 */
1074 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1075 error = ENOMEM;
1076 goto out;
1077 }
1078 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1079 (void **)&cbfc, sizeof(*cbfc))) != 0)
1080 goto out;
1081
1082 /*
1083 * Submit the request and wait for it to complete.
1084 */
1085 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1086 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1087 goto out;
1088 }
1089
1090 /*
1091 * Check response.
1092 */
1093 ciss_report_request(cr, &command_status, NULL);
1094 switch(command_status) {
1095 case CISS_CMD_STATUS_SUCCESS:
1096 break;
1097 default:
1098 ciss_printf(sc, "error flushing cache (%s)\n",
1099 ciss_name_command_status(command_status));
1100 error = EIO;
1101 goto out;
1102 }
1103
1104 out:
1105 if (cbfc != NULL)
1106 free(cbfc, CISS_MALLOC_CLASS);
1107 if (cr != NULL)
1108 ciss_release_request(cr);
1109 return(error);
1110 }
1111
1112 static void
ciss_soft_reset(struct ciss_softc * sc)1113 ciss_soft_reset(struct ciss_softc *sc)
1114 {
1115 struct ciss_request *cr = NULL;
1116 struct ciss_command *cc;
1117 int i, error = 0;
1118
1119 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1120 /* only reset proxy controllers */
1121 if (sc->ciss_controllers[i].physical.bus == 0)
1122 continue;
1123
1124 if ((error = ciss_get_request(sc, &cr)) != 0)
1125 break;
1126
1127 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1128 NULL, 0)) != 0)
1129 break;
1130
1131 cc = cr->cr_cc;
1132 cc->header.address = sc->ciss_controllers[i];
1133
1134 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1135 break;
1136
1137 ciss_release_request(cr);
1138 }
1139
1140 if (error)
1141 ciss_printf(sc, "error resetting controller (%d)\n", error);
1142
1143 if (cr != NULL)
1144 ciss_release_request(cr);
1145 }
1146
1147 /************************************************************************
1148 * Allocate memory for the adapter command structures, initialise
1149 * the request structures.
1150 *
1151 * Note that the entire set of commands are allocated in a single
1152 * contiguous slab.
1153 */
1154 static int
ciss_init_requests(struct ciss_softc * sc)1155 ciss_init_requests(struct ciss_softc *sc)
1156 {
1157 struct ciss_request *cr;
1158 int i;
1159
1160 debug_called(1);
1161
1162 if (bootverbose || ciss_verbose)
1163 ciss_printf(sc, "using %d of %d available commands\n",
1164 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1165
1166 /*
1167 * Create the DMA tag for commands.
1168 */
1169 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1170 32, 0, /* alignment, boundary */
1171 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1172 BUS_SPACE_MAXADDR, /* highaddr */
1173 NULL, NULL, /* filter, filterarg */
1174 CISS_COMMAND_ALLOC_SIZE *
1175 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1176 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1177 0, /* flags */
1178 NULL, NULL, /* lockfunc, lockarg */
1179 &sc->ciss_command_dmat)) {
1180 ciss_printf(sc, "can't allocate command DMA tag\n");
1181 return(ENOMEM);
1182 }
1183 /*
1184 * Allocate memory and make it available for DMA.
1185 */
1186 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1187 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1188 ciss_printf(sc, "can't allocate command memory\n");
1189 return(ENOMEM);
1190 }
1191 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1192 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1193 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1194 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1195
1196 /*
1197 * Set up the request and command structures, push requests onto
1198 * the free queue.
1199 */
1200 for (i = 1; i < sc->ciss_max_requests; i++) {
1201 cr = &sc->ciss_request[i];
1202 cr->cr_sc = sc;
1203 cr->cr_tag = i;
1204 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1205 CISS_COMMAND_ALLOC_SIZE * i);
1206 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1207 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1208 ciss_enqueue_free(cr);
1209 }
1210 return(0);
1211 }
1212
1213 static void
ciss_command_map_helper(void * arg,bus_dma_segment_t * segs,int nseg,int error)1214 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1215 {
1216 uint32_t *addr;
1217
1218 addr = arg;
1219 *addr = segs[0].ds_addr;
1220 }
1221
1222 /************************************************************************
1223 * Identify the adapter, print some information about it.
1224 */
1225 static int
ciss_identify_adapter(struct ciss_softc * sc)1226 ciss_identify_adapter(struct ciss_softc *sc)
1227 {
1228 struct ciss_request *cr;
1229 int error, command_status;
1230
1231 debug_called(1);
1232
1233 cr = NULL;
1234
1235 /*
1236 * Get a request, allocate storage for the adapter data.
1237 */
1238 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1239 (void **)&sc->ciss_id,
1240 sizeof(*sc->ciss_id))) != 0)
1241 goto out;
1242
1243 /*
1244 * Submit the request and wait for it to complete.
1245 */
1246 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1247 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1248 goto out;
1249 }
1250
1251 /*
1252 * Check response.
1253 */
1254 ciss_report_request(cr, &command_status, NULL);
1255 switch(command_status) {
1256 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1257 break;
1258 case CISS_CMD_STATUS_DATA_UNDERRUN:
1259 case CISS_CMD_STATUS_DATA_OVERRUN:
1260 ciss_printf(sc, "data over/underrun reading adapter information\n");
1261 default:
1262 ciss_printf(sc, "error reading adapter information (%s)\n",
1263 ciss_name_command_status(command_status));
1264 error = EIO;
1265 goto out;
1266 }
1267
1268 /* sanity-check reply */
1269 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1270 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1271 error = ENXIO;
1272 goto out;
1273 }
1274
1275 #if 0
1276 /* XXX later revisions may not need this */
1277 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1278 #endif
1279
1280 /* XXX only really required for old 5300 adapters? */
1281 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1282
1283 /*
1284 * Earlier controller specs do not contain these config
1285 * entries, so assume that a 0 means its old and assign
1286 * these values to the defaults that were established
1287 * when this driver was developed for them
1288 */
1289 if (sc->ciss_cfg->max_logical_supported == 0)
1290 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1291 if (sc->ciss_cfg->max_physical_supported == 0)
1292 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1293 /* print information */
1294 if (bootverbose || ciss_verbose) {
1295 ciss_printf(sc, " %d logical drive%s configured\n",
1296 sc->ciss_id->configured_logical_drives,
1297 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1298 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1299 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1300
1301 if (ciss_verbose > 1) {
1302 ciss_printf(sc, " %d FC channels\n", sc->ciss_id->fibre_chip_count);
1303 ciss_printf(sc, " %d enclosures\n", sc->ciss_id->bEnclosureCount);
1304 ciss_printf(sc, " %d expanders\n", sc->ciss_id->bExpanderCount);
1305 ciss_printf(sc, " maximum blocks: %d\n", sc->ciss_id->maximum_blocks);
1306 ciss_printf(sc, " controller clock: %d\n", sc->ciss_id->controller_clock);
1307 ciss_printf(sc, " %d MB controller memory\n", sc->ciss_id->total_controller_mem_mb);
1308 }
1309
1310 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1311 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1312 ciss_printf(sc, " supported I/O methods 0x%b\n",
1313 sc->ciss_cfg->supported_methods,
1314 "\20\1READY\2simple\3performant\4MEMQ\n");
1315 ciss_printf(sc, " active I/O method 0x%b\n",
1316 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1317 ciss_printf(sc, " 4G page base 0x%08x\n",
1318 sc->ciss_cfg->command_physlimit);
1319 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1320 sc->ciss_cfg->interrupt_coalesce_delay);
1321 ciss_printf(sc, " interrupt coalesce count %d\n",
1322 sc->ciss_cfg->interrupt_coalesce_count);
1323 ciss_printf(sc, " max outstanding commands %d\n",
1324 sc->ciss_cfg->max_outstanding_commands);
1325 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1326 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1327 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1328 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1329 ciss_printf(sc, " max logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1330 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1331 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1332 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1333 "Available" : "Unavailable");
1334 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1335 "Enabled" : "Disabled");
1336 }
1337
1338 out:
1339 if (error) {
1340 if (sc->ciss_id != NULL) {
1341 free(sc->ciss_id, CISS_MALLOC_CLASS);
1342 sc->ciss_id = NULL;
1343 }
1344 }
1345 if (cr != NULL)
1346 ciss_release_request(cr);
1347 return(error);
1348 }
1349
1350 /************************************************************************
1351 * Helper routine for generating a list of logical and physical luns.
1352 */
1353 static struct ciss_lun_report *
ciss_report_luns(struct ciss_softc * sc,int opcode,int nunits)1354 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1355 {
1356 struct ciss_request *cr;
1357 struct ciss_command *cc;
1358 struct ciss_report_cdb *crc;
1359 struct ciss_lun_report *cll;
1360 int command_status;
1361 int report_size;
1362 int error = 0;
1363
1364 debug_called(1);
1365
1366 cr = NULL;
1367 cll = NULL;
1368
1369 /*
1370 * Get a request, allocate storage for the address list.
1371 */
1372 if ((error = ciss_get_request(sc, &cr)) != 0)
1373 goto out;
1374 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1375 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1376 ciss_printf(sc, "can't allocate memory for lun report\n");
1377 error = ENOMEM;
1378 goto out;
1379 }
1380
1381 /*
1382 * Build the Report Logical/Physical LUNs command.
1383 */
1384 cc = cr->cr_cc;
1385 cr->cr_data = cll;
1386 cr->cr_length = report_size;
1387 cr->cr_flags = CISS_REQ_DATAIN;
1388
1389 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1390 cc->header.address.physical.bus = 0;
1391 cc->header.address.physical.target = 0;
1392 cc->cdb.cdb_length = sizeof(*crc);
1393 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1394 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1395 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1396 cc->cdb.timeout = 30; /* XXX better suggestions? */
1397
1398 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1399 bzero(crc, sizeof(*crc));
1400 crc->opcode = opcode;
1401 crc->length = htonl(report_size); /* big-endian field */
1402 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1403
1404 /*
1405 * Submit the request and wait for it to complete. (timeout
1406 * here should be much greater than above)
1407 */
1408 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1409 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1410 goto out;
1411 }
1412
1413 /*
1414 * Check response. Note that data over/underrun is OK.
1415 */
1416 ciss_report_request(cr, &command_status, NULL);
1417 switch(command_status) {
1418 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1419 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1420 break;
1421 case CISS_CMD_STATUS_DATA_OVERRUN:
1422 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1423 sc->ciss_cfg->max_logical_supported);
1424 break;
1425 default:
1426 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1427 ciss_name_command_status(command_status));
1428 error = EIO;
1429 goto out;
1430 }
1431 ciss_release_request(cr);
1432 cr = NULL;
1433
1434 out:
1435 if (cr != NULL)
1436 ciss_release_request(cr);
1437 if (error && cll != NULL) {
1438 free(cll, CISS_MALLOC_CLASS);
1439 cll = NULL;
1440 }
1441 return(cll);
1442 }
1443
1444 /************************************************************************
1445 * Find logical drives on the adapter.
1446 */
1447 static int
ciss_init_logical(struct ciss_softc * sc)1448 ciss_init_logical(struct ciss_softc *sc)
1449 {
1450 struct ciss_lun_report *cll;
1451 int error = 0, i, j;
1452 int ndrives;
1453
1454 debug_called(1);
1455
1456 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1457 sc->ciss_cfg->max_logical_supported);
1458 if (cll == NULL) {
1459 error = ENXIO;
1460 goto out;
1461 }
1462
1463 /* sanity-check reply */
1464 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1465 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1466 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1467 ndrives, sc->ciss_cfg->max_logical_supported);
1468 error = ENXIO;
1469 goto out;
1470 }
1471
1472 /*
1473 * Save logical drive information.
1474 */
1475 if (bootverbose || ciss_verbose) {
1476 ciss_printf(sc, "%d logical drive%s\n",
1477 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1478 }
1479
1480 sc->ciss_logical =
1481 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1482 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1483 if (sc->ciss_logical == NULL) {
1484 error = ENXIO;
1485 goto out;
1486 }
1487
1488 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1489 sc->ciss_logical[i] =
1490 malloc(sc->ciss_cfg->max_logical_supported *
1491 sizeof(struct ciss_ldrive),
1492 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1493 if (sc->ciss_logical[i] == NULL) {
1494 error = ENXIO;
1495 goto out;
1496 }
1497
1498 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1499 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1500 }
1501
1502 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1503 if (i < ndrives) {
1504 struct ciss_ldrive *ld;
1505 int bus, target;
1506
1507 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1508 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1509 ld = &sc->ciss_logical[bus][target];
1510
1511 ld->cl_address = cll->lun[i];
1512 ld->cl_controller = &sc->ciss_controllers[bus];
1513 if (ciss_identify_logical(sc, ld) != 0)
1514 continue;
1515 /*
1516 * If the drive has had media exchanged, we should bring it online.
1517 */
1518 if (ld->cl_lstatus->media_exchanged)
1519 ciss_accept_media(sc, ld);
1520 }
1521 }
1522
1523 out:
1524 if (cll != NULL)
1525 free(cll, CISS_MALLOC_CLASS);
1526 return(error);
1527 }
1528
1529 static int
ciss_init_physical(struct ciss_softc * sc)1530 ciss_init_physical(struct ciss_softc *sc)
1531 {
1532 struct ciss_lun_report *cll;
1533 int error = 0, i;
1534 int nphys;
1535 int bus;
1536
1537 debug_called(1);
1538
1539 bus = 0;
1540
1541 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1542 sc->ciss_cfg->max_physical_supported);
1543 if (cll == NULL) {
1544 error = ENXIO;
1545 goto out;
1546 }
1547
1548 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1549
1550 if (bootverbose || ciss_verbose) {
1551 ciss_printf(sc, "%d physical device%s\n",
1552 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1553 }
1554
1555 /* Per-controller highest target number seen */
1556 sc->ciss_max_physical_target = 0;
1557
1558 /*
1559 * Figure out the bus mapping.
1560 * Logical buses include both the local logical bus for local arrays and
1561 * proxy buses for remote arrays. Physical buses are numbered by the
1562 * controller and represent physical buses that hold physical devices.
1563 * We shift these bus numbers so that everything fits into a single flat
1564 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1565 * numbers, and the physical bus numbers are shifted to be above that.
1566 * This results in the various driver arrays being indexed as follows:
1567 *
1568 * ciss_controllers[] - indexed by logical bus
1569 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1570 * being shifted by 32.
1571 * ciss_logical[][] - indexed by logical bus
1572 * ciss_physical[][] - indexed by physical bus
1573 *
1574 * XXX This is getting more and more hackish. CISS really doesn't play
1575 * well with a standard SCSI model; devices are addressed via magic
1576 * cookies, not via b/t/l addresses. Since there is no way to store
1577 * the cookie in the CAM device object, we have to keep these lookup
1578 * tables handy so that the devices can be found quickly at the cost
1579 * of wasting memory and having a convoluted lookup scheme. This
1580 * driver should probably be converted to block interface.
1581 */
1582 /*
1583 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1584 * controller. A proxy controller is another physical controller
1585 * behind the primary PCI controller. We need to know about this
1586 * so that BMIC commands can be properly targeted. There can be
1587 * proxy controllers attached to a single PCI controller, so
1588 * find the highest numbered one so the array can be properly
1589 * sized.
1590 */
1591 sc->ciss_max_logical_bus = 1;
1592 for (i = 0; i < nphys; i++) {
1593 if (cll->lun[i].physical.extra_address == 0) {
1594 bus = cll->lun[i].physical.bus;
1595 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1596 } else {
1597 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1598 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1599 }
1600 }
1601
1602 sc->ciss_controllers =
1603 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1604 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1605
1606 if (sc->ciss_controllers == NULL) {
1607 ciss_printf(sc, "Could not allocate memory for controller map\n");
1608 error = ENOMEM;
1609 goto out;
1610 }
1611
1612 /* setup a map of controller addresses */
1613 for (i = 0; i < nphys; i++) {
1614 if (cll->lun[i].physical.extra_address == 0) {
1615 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1616 }
1617 }
1618
1619 sc->ciss_physical =
1620 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1621 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1622 if (sc->ciss_physical == NULL) {
1623 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1624 error = ENOMEM;
1625 goto out;
1626 }
1627
1628 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1629 sc->ciss_physical[i] =
1630 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1631 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1632 if (sc->ciss_physical[i] == NULL) {
1633 ciss_printf(sc, "Could not allocate memory for target map\n");
1634 error = ENOMEM;
1635 goto out;
1636 }
1637 }
1638
1639 ciss_filter_physical(sc, cll);
1640 if (bootverbose || ciss_verbose)
1641 ciss_printf(sc, "max physical target id: %d\n", sc->ciss_max_physical_target);
1642
1643 out:
1644 if (cll != NULL)
1645 free(cll, CISS_MALLOC_CLASS);
1646
1647 return(error);
1648 }
1649
1650 static int
ciss_filter_physical(struct ciss_softc * sc,struct ciss_lun_report * cll)1651 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1652 {
1653 u_int32_t ea;
1654 int i, nphys;
1655 int bus, target;
1656
1657 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1658 for (i = 0; i < nphys; i++) {
1659 if (cll->lun[i].physical.extra_address == 0)
1660 continue;
1661
1662 /*
1663 * Filter out devices that we don't want. Level 3 LUNs could
1664 * probably be supported, but the docs don't give enough of a
1665 * hint to know how.
1666 *
1667 * The mode field of the physical address is likely set to have
1668 * hard disks masked out. Honor it unless the user has overridden
1669 * us with the tunable. We also munge the inquiry data for these
1670 * disks so that they only show up as passthrough devices. Keeping
1671 * them visible in this fashion is useful for doing things like
1672 * flashing firmware.
1673 */
1674 ea = cll->lun[i].physical.extra_address;
1675 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1676 (CISS_EXTRA_MODE2(ea) == 0x3))
1677 continue;
1678 if ((ciss_expose_hidden_physical == 0) &&
1679 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1680 continue;
1681
1682 /*
1683 * Note: CISS firmware numbers physical busses starting at '1', not
1684 * '0'. This numbering is internal to the firmware and is only
1685 * used as a hint here.
1686 */
1687 bus = CISS_EXTRA_BUS2(ea) - 1;
1688 target = CISS_EXTRA_TARGET2(ea);
1689 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1690 sc->ciss_physical[bus][target].cp_online = 1;
1691
1692 if ((target > sc->ciss_max_physical_target) &&
1693 (cll->lun[i].physical.mode != CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1694 sc->ciss_max_physical_target = target;
1695 }
1696
1697 return (0);
1698 }
1699
1700 static int
ciss_inquiry_logical(struct ciss_softc * sc,struct ciss_ldrive * ld)1701 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1702 {
1703 struct ciss_request *cr;
1704 struct ciss_command *cc;
1705 struct scsi_inquiry *inq;
1706 int error;
1707 int command_status;
1708
1709 cr = NULL;
1710
1711 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1712
1713 if ((error = ciss_get_request(sc, &cr)) != 0)
1714 goto out;
1715
1716 cc = cr->cr_cc;
1717 cr->cr_data = &ld->cl_geometry;
1718 cr->cr_length = sizeof(ld->cl_geometry);
1719 cr->cr_flags = CISS_REQ_DATAIN;
1720
1721 cc->header.address = ld->cl_address;
1722 cc->cdb.cdb_length = 6;
1723 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1724 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1725 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1726 cc->cdb.timeout = 30;
1727
1728 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1729 inq->opcode = INQUIRY;
1730 inq->byte2 = SI_EVPD;
1731 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1732 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1733
1734 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1735 ciss_printf(sc, "error getting geometry (%d)\n", error);
1736 goto out;
1737 }
1738
1739 ciss_report_request(cr, &command_status, NULL);
1740 switch(command_status) {
1741 case CISS_CMD_STATUS_SUCCESS:
1742 case CISS_CMD_STATUS_DATA_UNDERRUN:
1743 break;
1744 case CISS_CMD_STATUS_DATA_OVERRUN:
1745 ciss_printf(sc, "WARNING: Data overrun\n");
1746 break;
1747 default:
1748 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1749 ciss_name_command_status(command_status));
1750 break;
1751 }
1752
1753 out:
1754 if (cr != NULL)
1755 ciss_release_request(cr);
1756 return(error);
1757 }
1758 /************************************************************************
1759 * Identify a logical drive, initialise state related to it.
1760 */
1761 static int
ciss_identify_logical(struct ciss_softc * sc,struct ciss_ldrive * ld)1762 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1763 {
1764 struct ciss_request *cr;
1765 struct ciss_command *cc;
1766 struct ciss_bmic_cdb *cbc;
1767 int error, command_status;
1768
1769 debug_called(1);
1770
1771 cr = NULL;
1772
1773 /*
1774 * Build a BMIC request to fetch the drive ID.
1775 */
1776 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1777 (void **)&ld->cl_ldrive,
1778 sizeof(*ld->cl_ldrive))) != 0)
1779 goto out;
1780 cc = cr->cr_cc;
1781 cc->header.address = *ld->cl_controller; /* target controller */
1782 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1783 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1784
1785 /*
1786 * Submit the request and wait for it to complete.
1787 */
1788 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1789 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1790 goto out;
1791 }
1792
1793 /*
1794 * Check response.
1795 */
1796 ciss_report_request(cr, &command_status, NULL);
1797 switch(command_status) {
1798 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1799 break;
1800 case CISS_CMD_STATUS_DATA_UNDERRUN:
1801 case CISS_CMD_STATUS_DATA_OVERRUN:
1802 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1803 default:
1804 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1805 ciss_name_command_status(command_status));
1806 error = EIO;
1807 goto out;
1808 }
1809 ciss_release_request(cr);
1810 cr = NULL;
1811
1812 /*
1813 * Build a CISS BMIC command to get the logical drive status.
1814 */
1815 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1816 goto out;
1817
1818 /*
1819 * Get the logical drive geometry.
1820 */
1821 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1822 goto out;
1823
1824 /*
1825 * Print the drive's basic characteristics.
1826 */
1827 if (bootverbose || ciss_verbose) {
1828 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1829 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1830 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1831 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1832 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1833 ld->cl_ldrive->block_size));
1834
1835 ciss_print_ldrive(sc, ld);
1836 }
1837 out:
1838 if (error != 0) {
1839 /* make the drive not-exist */
1840 ld->cl_status = CISS_LD_NONEXISTENT;
1841 if (ld->cl_ldrive != NULL) {
1842 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1843 ld->cl_ldrive = NULL;
1844 }
1845 if (ld->cl_lstatus != NULL) {
1846 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1847 ld->cl_lstatus = NULL;
1848 }
1849 }
1850 if (cr != NULL)
1851 ciss_release_request(cr);
1852
1853 return(error);
1854 }
1855
1856 /************************************************************************
1857 * Get status for a logical drive.
1858 *
1859 * XXX should we also do this in response to Test Unit Ready?
1860 */
1861 static int
ciss_get_ldrive_status(struct ciss_softc * sc,struct ciss_ldrive * ld)1862 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1863 {
1864 struct ciss_request *cr;
1865 struct ciss_command *cc;
1866 struct ciss_bmic_cdb *cbc;
1867 int error, command_status;
1868
1869 /*
1870 * Build a CISS BMIC command to get the logical drive status.
1871 */
1872 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1873 (void **)&ld->cl_lstatus,
1874 sizeof(*ld->cl_lstatus))) != 0)
1875 goto out;
1876 cc = cr->cr_cc;
1877 cc->header.address = *ld->cl_controller; /* target controller */
1878 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1879 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1880
1881 /*
1882 * Submit the request and wait for it to complete.
1883 */
1884 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1885 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1886 goto out;
1887 }
1888
1889 /*
1890 * Check response.
1891 */
1892 ciss_report_request(cr, &command_status, NULL);
1893 switch(command_status) {
1894 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1895 break;
1896 case CISS_CMD_STATUS_DATA_UNDERRUN:
1897 case CISS_CMD_STATUS_DATA_OVERRUN:
1898 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1899 default:
1900 ciss_printf(sc, "error reading logical drive status (%s)\n",
1901 ciss_name_command_status(command_status));
1902 error = EIO;
1903 goto out;
1904 }
1905
1906 /*
1907 * Set the drive's summary status based on the returned status.
1908 *
1909 * XXX testing shows that a failed JBOD drive comes back at next
1910 * boot in "queued for expansion" mode. WTF?
1911 */
1912 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1913
1914 out:
1915 if (cr != NULL)
1916 ciss_release_request(cr);
1917 return(error);
1918 }
1919
1920 /************************************************************************
1921 * Notify the adapter of a config update.
1922 */
1923 static int
ciss_update_config(struct ciss_softc * sc)1924 ciss_update_config(struct ciss_softc *sc)
1925 {
1926 int i;
1927
1928 debug_called(1);
1929
1930 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1931 for (i = 0; i < 1000; i++) {
1932 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1933 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1934 return(0);
1935 }
1936 DELAY(1000);
1937 }
1938 return(1);
1939 }
1940
1941 /************************************************************************
1942 * Accept new media into a logical drive.
1943 *
1944 * XXX The drive has previously been offline; it would be good if we
1945 * could make sure it's not open right now.
1946 */
1947 static int
ciss_accept_media(struct ciss_softc * sc,struct ciss_ldrive * ld)1948 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1949 {
1950 struct ciss_request *cr;
1951 struct ciss_command *cc;
1952 struct ciss_bmic_cdb *cbc;
1953 int command_status;
1954 int error = 0, ldrive;
1955
1956 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1957
1958 debug(0, "bringing logical drive %d back online", ldrive);
1959
1960 /*
1961 * Build a CISS BMIC command to bring the drive back online.
1962 */
1963 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1964 NULL, 0)) != 0)
1965 goto out;
1966 cc = cr->cr_cc;
1967 cc->header.address = *ld->cl_controller; /* target controller */
1968 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1969 cbc->log_drive = ldrive;
1970
1971 /*
1972 * Submit the request and wait for it to complete.
1973 */
1974 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1975 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1976 goto out;
1977 }
1978
1979 /*
1980 * Check response.
1981 */
1982 ciss_report_request(cr, &command_status, NULL);
1983 switch(command_status) {
1984 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1985 /* we should get a logical drive status changed event here */
1986 break;
1987 default:
1988 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1989 ciss_name_command_status(command_status));
1990 break;
1991 }
1992
1993 out:
1994 if (cr != NULL)
1995 ciss_release_request(cr);
1996 return(error);
1997 }
1998
1999 /************************************************************************
2000 * Release adapter resources.
2001 */
2002 static void
ciss_free(struct ciss_softc * sc)2003 ciss_free(struct ciss_softc *sc)
2004 {
2005 struct ciss_request *cr;
2006 int i, j;
2007
2008 debug_called(1);
2009
2010 /* we're going away */
2011 sc->ciss_flags |= CISS_FLAG_ABORTING;
2012
2013 /* terminate the periodic heartbeat routine */
2014 callout_stop(&sc->ciss_periodic);
2015
2016 /* cancel the Event Notify chain */
2017 ciss_notify_abort(sc);
2018
2019 ciss_kill_notify_thread(sc);
2020
2021 /* disconnect from CAM */
2022 if (sc->ciss_cam_sim) {
2023 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2024 if (sc->ciss_cam_sim[i]) {
2025 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
2026 cam_sim_free(sc->ciss_cam_sim[i], 0);
2027 }
2028 }
2029 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2030 CISS_PHYSICAL_BASE; i++) {
2031 if (sc->ciss_cam_sim[i]) {
2032 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
2033 cam_sim_free(sc->ciss_cam_sim[i], 0);
2034 }
2035 }
2036 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
2037 }
2038 if (sc->ciss_cam_devq)
2039 cam_simq_free(sc->ciss_cam_devq);
2040
2041 /* remove the control device */
2042 mtx_unlock(&sc->ciss_mtx);
2043 if (sc->ciss_dev_t != NULL)
2044 destroy_dev(sc->ciss_dev_t);
2045
2046 /* Final cleanup of the callout. */
2047 callout_drain(&sc->ciss_periodic);
2048 mtx_destroy(&sc->ciss_mtx);
2049
2050 /* free the controller data */
2051 if (sc->ciss_id != NULL)
2052 free(sc->ciss_id, CISS_MALLOC_CLASS);
2053
2054 /* release I/O resources */
2055 if (sc->ciss_regs_resource != NULL)
2056 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2057 sc->ciss_regs_rid, sc->ciss_regs_resource);
2058 if (sc->ciss_cfg_resource != NULL)
2059 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2060 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2061 if (sc->ciss_intr != NULL)
2062 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2063 if (sc->ciss_irq_resource != NULL)
2064 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2065 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2066 if (sc->ciss_msi)
2067 pci_release_msi(sc->ciss_dev);
2068
2069 while ((cr = ciss_dequeue_free(sc)) != NULL)
2070 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2071 if (sc->ciss_buffer_dmat)
2072 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2073
2074 /* destroy command memory and DMA tag */
2075 if (sc->ciss_command != NULL) {
2076 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2077 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2078 }
2079 if (sc->ciss_command_dmat)
2080 bus_dma_tag_destroy(sc->ciss_command_dmat);
2081
2082 if (sc->ciss_reply) {
2083 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2084 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2085 }
2086 if (sc->ciss_reply_dmat)
2087 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2088
2089 /* destroy DMA tags */
2090 if (sc->ciss_parent_dmat)
2091 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2092 if (sc->ciss_logical) {
2093 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2094 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2095 if (sc->ciss_logical[i][j].cl_ldrive)
2096 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2097 if (sc->ciss_logical[i][j].cl_lstatus)
2098 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2099 }
2100 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2101 }
2102 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2103 }
2104
2105 if (sc->ciss_physical) {
2106 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2107 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2108 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2109 }
2110
2111 if (sc->ciss_controllers)
2112 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2113
2114 }
2115
2116 /************************************************************************
2117 * Give a command to the adapter.
2118 *
2119 * Note that this uses the simple transport layer directly. If we
2120 * want to add support for other layers, we'll need a switch of some
2121 * sort.
2122 *
2123 * Note that the simple transport layer has no way of refusing a
2124 * command; we only have as many request structures as the adapter
2125 * supports commands, so we don't have to check (this presumes that
2126 * the adapter can handle commands as fast as we throw them at it).
2127 */
2128 static int
ciss_start(struct ciss_request * cr)2129 ciss_start(struct ciss_request *cr)
2130 {
2131 int error;
2132
2133 debug(2, "post command %d tag %d ", cr->cr_tag, cr->cr_cc->header.host_tag);
2134
2135 /*
2136 * Map the request's data.
2137 */
2138 if ((error = ciss_map_request(cr)))
2139 return(error);
2140
2141 #if 0
2142 ciss_print_request(cr);
2143 #endif
2144
2145 return(0);
2146 }
2147
2148 /************************************************************************
2149 * Fetch completed request(s) from the adapter, queue them for
2150 * completion handling.
2151 *
2152 * Note that this uses the simple transport layer directly. If we
2153 * want to add support for other layers, we'll need a switch of some
2154 * sort.
2155 *
2156 * Note that the simple transport mechanism does not require any
2157 * reentrancy protection; the OPQ read is atomic. If there is a
2158 * chance of a race with something else that might move the request
2159 * off the busy list, then we will have to lock against that
2160 * (eg. timeouts, etc.)
2161 */
2162 static void
ciss_done(struct ciss_softc * sc,cr_qhead_t * qh)2163 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2164 {
2165 struct ciss_request *cr;
2166 struct ciss_command *cc;
2167 u_int32_t tag, index;
2168
2169 debug_called(3);
2170
2171 /*
2172 * Loop quickly taking requests from the adapter and moving them
2173 * to the completed queue.
2174 */
2175 for (;;) {
2176 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2177 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2178 break;
2179 index = tag >> 2;
2180 debug(2, "completed command %d%s", index,
2181 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2182 if (index >= sc->ciss_max_requests) {
2183 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2184 continue;
2185 }
2186 cr = &(sc->ciss_request[index]);
2187 cc = cr->cr_cc;
2188 cc->header.host_tag = tag; /* not updated by adapter */
2189 ciss_enqueue_complete(cr, qh);
2190 }
2191
2192 }
2193
2194 static void
ciss_perf_done(struct ciss_softc * sc,cr_qhead_t * qh)2195 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2196 {
2197 struct ciss_request *cr;
2198 struct ciss_command *cc;
2199 u_int32_t tag, index;
2200
2201 debug_called(3);
2202
2203 /*
2204 * Loop quickly taking requests from the adapter and moving them
2205 * to the completed queue.
2206 */
2207 for (;;) {
2208 tag = sc->ciss_reply[sc->ciss_rqidx];
2209 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2210 break;
2211 index = tag >> 2;
2212 debug(2, "completed command %d%s\n", index,
2213 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2214 if (index < sc->ciss_max_requests) {
2215 cr = &(sc->ciss_request[index]);
2216 cc = cr->cr_cc;
2217 cc->header.host_tag = tag; /* not updated by adapter */
2218 ciss_enqueue_complete(cr, qh);
2219 } else {
2220 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2221 }
2222 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2223 sc->ciss_rqidx = 0;
2224 sc->ciss_cycle ^= 1;
2225 }
2226 }
2227
2228 }
2229
2230 /************************************************************************
2231 * Take an interrupt from the adapter.
2232 */
2233 static void
ciss_intr(void * arg)2234 ciss_intr(void *arg)
2235 {
2236 cr_qhead_t qh;
2237 struct ciss_softc *sc = (struct ciss_softc *)arg;
2238
2239 /*
2240 * The only interrupt we recognise indicates that there are
2241 * entries in the outbound post queue.
2242 */
2243 STAILQ_INIT(&qh);
2244 ciss_done(sc, &qh);
2245 mtx_lock(&sc->ciss_mtx);
2246 ciss_complete(sc, &qh);
2247 mtx_unlock(&sc->ciss_mtx);
2248 }
2249
2250 static void
ciss_perf_intr(void * arg)2251 ciss_perf_intr(void *arg)
2252 {
2253 struct ciss_softc *sc = (struct ciss_softc *)arg;
2254
2255 /* Clear the interrupt and flush the bridges. Docs say that the flush
2256 * needs to be done twice, which doesn't seem right.
2257 */
2258 CISS_TL_PERF_CLEAR_INT(sc);
2259 CISS_TL_PERF_FLUSH_INT(sc);
2260
2261 ciss_perf_msi_intr(sc);
2262 }
2263
2264 static void
ciss_perf_msi_intr(void * arg)2265 ciss_perf_msi_intr(void *arg)
2266 {
2267 cr_qhead_t qh;
2268 struct ciss_softc *sc = (struct ciss_softc *)arg;
2269
2270 STAILQ_INIT(&qh);
2271 ciss_perf_done(sc, &qh);
2272 mtx_lock(&sc->ciss_mtx);
2273 ciss_complete(sc, &qh);
2274 mtx_unlock(&sc->ciss_mtx);
2275 }
2276
2277 /************************************************************************
2278 * Process completed requests.
2279 *
2280 * Requests can be completed in three fashions:
2281 *
2282 * - by invoking a callback function (cr_complete is non-null)
2283 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2284 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2285 */
2286 static void
ciss_complete(struct ciss_softc * sc,cr_qhead_t * qh)2287 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2288 {
2289 struct ciss_request *cr;
2290
2291 debug_called(2);
2292
2293 /*
2294 * Loop taking requests off the completed queue and performing
2295 * completion processing on them.
2296 */
2297 for (;;) {
2298 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2299 break;
2300 ciss_unmap_request(cr);
2301
2302 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2303 ciss_printf(sc, "WARNING: completing non-busy request\n");
2304 cr->cr_flags &= ~CISS_REQ_BUSY;
2305
2306 /*
2307 * If the request has a callback, invoke it.
2308 */
2309 if (cr->cr_complete != NULL) {
2310 cr->cr_complete(cr);
2311 continue;
2312 }
2313
2314 /*
2315 * If someone is sleeping on this request, wake them up.
2316 */
2317 if (cr->cr_flags & CISS_REQ_SLEEP) {
2318 cr->cr_flags &= ~CISS_REQ_SLEEP;
2319 wakeup(cr);
2320 continue;
2321 }
2322
2323 /*
2324 * If someone is polling this request for completion, signal.
2325 */
2326 if (cr->cr_flags & CISS_REQ_POLL) {
2327 cr->cr_flags &= ~CISS_REQ_POLL;
2328 continue;
2329 }
2330
2331 /*
2332 * Give up and throw the request back on the free queue. This
2333 * should never happen; resources will probably be lost.
2334 */
2335 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2336 ciss_enqueue_free(cr);
2337 }
2338 }
2339
2340 /************************************************************************
2341 * Report on the completion status of a request, and pass back SCSI
2342 * and command status values.
2343 */
2344 static int
_ciss_report_request(struct ciss_request * cr,int * command_status,int * scsi_status,const char * func)2345 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2346 {
2347 struct ciss_command *cc;
2348 struct ciss_error_info *ce;
2349
2350 debug_called(2);
2351
2352 cc = cr->cr_cc;
2353 ce = (struct ciss_error_info *)&(cc->sg[0]);
2354
2355 /*
2356 * We don't consider data under/overrun an error for the Report
2357 * Logical/Physical LUNs, INQUIRY & RECEIVE_DIAGNOSTIC commands.
2358 */
2359 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2360 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2361 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2362 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2363 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2364 (cc->cdb.cdb[0] == RECEIVE_DIAGNOSTIC) ||
2365 (cc->cdb.cdb[0] == INQUIRY))) {
2366 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2367 debug(2, "ignoring irrelevant under/overrun error");
2368 }
2369
2370 /*
2371 * Check the command's error bit, if clear, there's no status and
2372 * everything is OK.
2373 */
2374 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2375 if (scsi_status != NULL)
2376 *scsi_status = SCSI_STATUS_OK;
2377 if (command_status != NULL)
2378 *command_status = CISS_CMD_STATUS_SUCCESS;
2379 return(0);
2380 } else {
2381 if (command_status != NULL)
2382 *command_status = ce->command_status;
2383 if (scsi_status != NULL) {
2384 if (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN) {
2385 *scsi_status = SCSI_STATUS_OK;
2386 } else if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2387 *scsi_status = ce->scsi_status;
2388 } else {
2389 *scsi_status = -1;
2390 }
2391 }
2392 if ((bootverbose || ciss_verbose > 3 || (ciss_verbose > 2 && ce->scsi_status != 0)) &&
2393 (ce->command_status != CISS_CMD_STATUS_DATA_UNDERRUN)) {
2394 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x (opcode 0x%02x)\n",
2395 ce->command_status, ciss_name_command_status(ce->command_status),
2396 ce->scsi_status,
2397 cc->cdb.cdb[0]);
2398 }
2399 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2400 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2401 ce->additional_error_info.invalid_command.offense_size,
2402 ce->additional_error_info.invalid_command.offense_offset,
2403 ce->additional_error_info.invalid_command.offense_value,
2404 func);
2405 }
2406 }
2407 #if 0
2408 ciss_print_request(cr);
2409 #endif
2410 return(1);
2411 }
2412
2413 /************************************************************************
2414 * Issue a request and don't return until it's completed.
2415 *
2416 * Depending on adapter status, we may poll or sleep waiting for
2417 * completion.
2418 */
2419 static int
ciss_synch_request(struct ciss_request * cr,int timeout)2420 ciss_synch_request(struct ciss_request *cr, int timeout)
2421 {
2422 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2423 return(ciss_wait_request(cr, timeout));
2424 } else {
2425 return(ciss_poll_request(cr, timeout));
2426 }
2427 }
2428
2429 /************************************************************************
2430 * Issue a request and poll for completion.
2431 *
2432 * Timeout in milliseconds.
2433 */
2434 static int
ciss_poll_request(struct ciss_request * cr,int timeout)2435 ciss_poll_request(struct ciss_request *cr, int timeout)
2436 {
2437 cr_qhead_t qh;
2438 struct ciss_softc *sc;
2439 int error;
2440
2441 debug_called(2);
2442
2443 STAILQ_INIT(&qh);
2444 sc = cr->cr_sc;
2445 cr->cr_flags |= CISS_REQ_POLL;
2446 if ((error = ciss_start(cr)) != 0)
2447 return(error);
2448
2449 do {
2450 if (sc->ciss_perf)
2451 ciss_perf_done(sc, &qh);
2452 else
2453 ciss_done(sc, &qh);
2454 ciss_complete(sc, &qh);
2455 if (!(cr->cr_flags & CISS_REQ_POLL))
2456 return(0);
2457 DELAY(1000);
2458 } while (timeout-- >= 0);
2459 return(EWOULDBLOCK);
2460 }
2461
2462 /************************************************************************
2463 * Issue a request and sleep waiting for completion.
2464 *
2465 * Timeout in milliseconds. Note that a spurious wakeup will reset
2466 * the timeout.
2467 */
2468 static int
ciss_wait_request(struct ciss_request * cr,int timeout)2469 ciss_wait_request(struct ciss_request *cr, int timeout)
2470 {
2471 int error;
2472
2473 debug_called(2);
2474
2475 cr->cr_flags |= CISS_REQ_SLEEP;
2476 if ((error = ciss_start(cr)) != 0)
2477 return(error);
2478
2479 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2480 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2481 SBT_1MS * timeout, 0, 0);
2482 }
2483 return(error);
2484 }
2485
2486 #if 0
2487 /************************************************************************
2488 * Abort a request. Note that a potential exists here to race the
2489 * request being completed; the caller must deal with this.
2490 */
2491 static int
2492 ciss_abort_request(struct ciss_request *ar)
2493 {
2494 struct ciss_request *cr;
2495 struct ciss_command *cc;
2496 struct ciss_message_cdb *cmc;
2497 int error;
2498
2499 debug_called(1);
2500
2501 /* get a request */
2502 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2503 return(error);
2504
2505 /* build the abort command */
2506 cc = cr->cr_cc;
2507 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2508 cc->header.address.physical.target = 0;
2509 cc->header.address.physical.bus = 0;
2510 cc->cdb.cdb_length = sizeof(*cmc);
2511 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2512 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2513 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2514 cc->cdb.timeout = 30;
2515
2516 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2517 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2518 cmc->type = CISS_MESSAGE_ABORT_TASK;
2519 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2520
2521 /*
2522 * Send the request and wait for a response. If we believe we
2523 * aborted the request OK, clear the flag that indicates it's
2524 * running.
2525 */
2526 error = ciss_synch_request(cr, 35 * 1000);
2527 if (!error)
2528 error = ciss_report_request(cr, NULL, NULL);
2529 ciss_release_request(cr);
2530
2531 return(error);
2532 }
2533 #endif
2534
2535 /************************************************************************
2536 * Fetch and initialise a request
2537 */
2538 static int
ciss_get_request(struct ciss_softc * sc,struct ciss_request ** crp)2539 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2540 {
2541 struct ciss_request *cr;
2542
2543 debug_called(2);
2544
2545 /*
2546 * Get a request and clean it up.
2547 */
2548 if ((cr = ciss_dequeue_free(sc)) == NULL)
2549 return(ENOMEM);
2550
2551 cr->cr_data = NULL;
2552 cr->cr_flags = 0;
2553 cr->cr_complete = NULL;
2554 cr->cr_private = NULL;
2555 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2556
2557 ciss_preen_command(cr);
2558 *crp = cr;
2559 return(0);
2560 }
2561
2562 static void
ciss_preen_command(struct ciss_request * cr)2563 ciss_preen_command(struct ciss_request *cr)
2564 {
2565 struct ciss_command *cc;
2566 u_int32_t cmdphys;
2567
2568 /*
2569 * Clean up the command structure.
2570 *
2571 * Note that we set up the error_info structure here, since the
2572 * length can be overwritten by any command.
2573 */
2574 cc = cr->cr_cc;
2575 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2576 cc->header.sg_total = 0;
2577 cc->header.host_tag = cr->cr_tag << 2;
2578 cc->header.host_tag_zeroes = 0;
2579 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2580 cmdphys = cr->cr_ccphys;
2581 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2582 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2583 }
2584
2585 /************************************************************************
2586 * Release a request to the free list.
2587 */
2588 static void
ciss_release_request(struct ciss_request * cr)2589 ciss_release_request(struct ciss_request *cr)
2590 {
2591
2592 debug_called(2);
2593
2594 /* release the request to the free queue */
2595 ciss_requeue_free(cr);
2596 }
2597
2598 /************************************************************************
2599 * Allocate a request that will be used to send a BMIC command. Do some
2600 * of the common setup here to avoid duplicating it everywhere else.
2601 */
2602 static int
ciss_get_bmic_request(struct ciss_softc * sc,struct ciss_request ** crp,int opcode,void ** bufp,size_t bufsize)2603 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2604 int opcode, void **bufp, size_t bufsize)
2605 {
2606 struct ciss_request *cr;
2607 struct ciss_command *cc;
2608 struct ciss_bmic_cdb *cbc;
2609 void *buf;
2610 int error;
2611 int dataout;
2612
2613 debug_called(2);
2614
2615 cr = NULL;
2616 buf = NULL;
2617
2618 /*
2619 * Get a request.
2620 */
2621 if ((error = ciss_get_request(sc, &cr)) != 0)
2622 goto out;
2623
2624 /*
2625 * Allocate data storage if requested, determine the data direction.
2626 */
2627 dataout = 0;
2628 if ((bufsize > 0) && (bufp != NULL)) {
2629 if (*bufp == NULL) {
2630 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2631 error = ENOMEM;
2632 goto out;
2633 }
2634 } else {
2635 buf = *bufp;
2636 dataout = 1; /* we are given a buffer, so we are writing */
2637 }
2638 }
2639
2640 /*
2641 * Build a CISS BMIC command to get the logical drive ID.
2642 */
2643 cr->cr_data = buf;
2644 cr->cr_length = bufsize;
2645 if (!dataout)
2646 cr->cr_flags = CISS_REQ_DATAIN;
2647
2648 cc = cr->cr_cc;
2649 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2650 cc->header.address.physical.bus = 0;
2651 cc->header.address.physical.target = 0;
2652 cc->cdb.cdb_length = sizeof(*cbc);
2653 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2654 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2655 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2656 cc->cdb.timeout = 0;
2657
2658 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2659 bzero(cbc, sizeof(*cbc));
2660 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2661 cbc->bmic_opcode = opcode;
2662 cbc->size = htons((u_int16_t)bufsize);
2663
2664 out:
2665 if (error) {
2666 if (cr != NULL)
2667 ciss_release_request(cr);
2668 } else {
2669 *crp = cr;
2670 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2671 *bufp = buf;
2672 }
2673 return(error);
2674 }
2675
2676 /************************************************************************
2677 * Handle a command passed in from userspace.
2678 */
2679 static int
ciss_user_command(struct ciss_softc * sc,IOCTL_Command_struct * ioc)2680 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2681 {
2682 struct ciss_request *cr;
2683 struct ciss_command *cc;
2684 struct ciss_error_info *ce;
2685 int error = 0;
2686
2687 debug_called(1);
2688
2689 cr = NULL;
2690
2691 /*
2692 * Get a request.
2693 */
2694 while (ciss_get_request(sc, &cr) != 0)
2695 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2696 cc = cr->cr_cc;
2697
2698 /*
2699 * Allocate an in-kernel databuffer if required, copy in user data.
2700 */
2701 mtx_unlock(&sc->ciss_mtx);
2702 cr->cr_length = ioc->buf_size;
2703 if (ioc->buf_size > 0) {
2704 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2705 error = ENOMEM;
2706 goto out_unlocked;
2707 }
2708 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2709 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2710 goto out_unlocked;
2711 }
2712 }
2713
2714 /*
2715 * Build the request based on the user command.
2716 */
2717 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2718 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2719
2720 /* XXX anything else to populate here? */
2721 mtx_lock(&sc->ciss_mtx);
2722
2723 /*
2724 * Run the command.
2725 */
2726 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2727 debug(0, "request failed - %d", error);
2728 goto out;
2729 }
2730
2731 /*
2732 * Check to see if the command succeeded.
2733 */
2734 ce = (struct ciss_error_info *)&(cc->sg[0]);
2735 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2736 bzero(ce, sizeof(*ce));
2737
2738 /*
2739 * Copy the results back to the user.
2740 */
2741 bcopy(ce, &ioc->error_info, sizeof(*ce));
2742 mtx_unlock(&sc->ciss_mtx);
2743 if ((ioc->buf_size > 0) &&
2744 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2745 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2746 goto out_unlocked;
2747 }
2748
2749 /* done OK */
2750 error = 0;
2751
2752 out_unlocked:
2753 mtx_lock(&sc->ciss_mtx);
2754
2755 out:
2756 if ((cr != NULL) && (cr->cr_data != NULL))
2757 free(cr->cr_data, CISS_MALLOC_CLASS);
2758 if (cr != NULL)
2759 ciss_release_request(cr);
2760 return(error);
2761 }
2762
2763 /************************************************************************
2764 * Map a request into bus-visible space, initialise the scatter/gather
2765 * list.
2766 */
2767 static int
ciss_map_request(struct ciss_request * cr)2768 ciss_map_request(struct ciss_request *cr)
2769 {
2770 struct ciss_softc *sc;
2771 int error = 0;
2772
2773 debug_called(2);
2774
2775 sc = cr->cr_sc;
2776
2777 /* check that mapping is necessary */
2778 if (cr->cr_flags & CISS_REQ_MAPPED)
2779 return(0);
2780
2781 cr->cr_flags |= CISS_REQ_MAPPED;
2782
2783 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2784 BUS_DMASYNC_PREWRITE);
2785
2786 if (cr->cr_data != NULL) {
2787 if (cr->cr_flags & CISS_REQ_CCB)
2788 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2789 cr->cr_datamap, cr->cr_data,
2790 ciss_request_map_helper, cr, 0);
2791 else
2792 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2793 cr->cr_data, cr->cr_length,
2794 ciss_request_map_helper, cr, 0);
2795 if (error != 0)
2796 return (error);
2797 } else {
2798 /*
2799 * Post the command to the adapter.
2800 */
2801 cr->cr_sg_tag = CISS_SG_NONE;
2802 cr->cr_flags |= CISS_REQ_BUSY;
2803 if (sc->ciss_perf)
2804 CISS_TL_PERF_POST_CMD(sc, cr);
2805 else
2806 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2807 }
2808
2809 return(0);
2810 }
2811
2812 static void
ciss_request_map_helper(void * arg,bus_dma_segment_t * segs,int nseg,int error)2813 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2814 {
2815 struct ciss_command *cc;
2816 struct ciss_request *cr;
2817 struct ciss_softc *sc;
2818 int i;
2819
2820 debug_called(2);
2821
2822 cr = (struct ciss_request *)arg;
2823 sc = cr->cr_sc;
2824 cc = cr->cr_cc;
2825
2826 for (i = 0; i < nseg; i++) {
2827 cc->sg[i].address = segs[i].ds_addr;
2828 cc->sg[i].length = segs[i].ds_len;
2829 cc->sg[i].extension = 0;
2830 }
2831 /* we leave the s/g table entirely within the command */
2832 cc->header.sg_in_list = nseg;
2833 cc->header.sg_total = nseg;
2834
2835 if (cr->cr_flags & CISS_REQ_DATAIN)
2836 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2837 if (cr->cr_flags & CISS_REQ_DATAOUT)
2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2839
2840 if (nseg == 0)
2841 cr->cr_sg_tag = CISS_SG_NONE;
2842 else if (nseg == 1)
2843 cr->cr_sg_tag = CISS_SG_1;
2844 else if (nseg == 2)
2845 cr->cr_sg_tag = CISS_SG_2;
2846 else if (nseg <= 4)
2847 cr->cr_sg_tag = CISS_SG_4;
2848 else if (nseg <= 8)
2849 cr->cr_sg_tag = CISS_SG_8;
2850 else if (nseg <= 16)
2851 cr->cr_sg_tag = CISS_SG_16;
2852 else if (nseg <= 32)
2853 cr->cr_sg_tag = CISS_SG_32;
2854 else
2855 cr->cr_sg_tag = CISS_SG_MAX;
2856
2857 /*
2858 * Post the command to the adapter.
2859 */
2860 cr->cr_flags |= CISS_REQ_BUSY;
2861 if (sc->ciss_perf)
2862 CISS_TL_PERF_POST_CMD(sc, cr);
2863 else
2864 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2865 }
2866
2867 /************************************************************************
2868 * Unmap a request from bus-visible space.
2869 */
2870 static void
ciss_unmap_request(struct ciss_request * cr)2871 ciss_unmap_request(struct ciss_request *cr)
2872 {
2873 struct ciss_softc *sc;
2874
2875 debug_called(2);
2876
2877 sc = cr->cr_sc;
2878
2879 /* check that unmapping is necessary */
2880 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2881 return;
2882
2883 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2884 BUS_DMASYNC_POSTWRITE);
2885
2886 if (cr->cr_data == NULL)
2887 goto out;
2888
2889 if (cr->cr_flags & CISS_REQ_DATAIN)
2890 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2891 if (cr->cr_flags & CISS_REQ_DATAOUT)
2892 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2893
2894 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2895 out:
2896 cr->cr_flags &= ~CISS_REQ_MAPPED;
2897 }
2898
2899 /************************************************************************
2900 * Attach the driver to CAM.
2901 *
2902 * We put all the logical drives on a single SCSI bus.
2903 */
2904 static int
ciss_cam_init(struct ciss_softc * sc)2905 ciss_cam_init(struct ciss_softc *sc)
2906 {
2907 int i, maxbus;
2908
2909 debug_called(1);
2910
2911 /*
2912 * Allocate a devq. We can reuse this for the masked physical
2913 * devices if we decide to export these as well.
2914 */
2915 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2916 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2917 return(ENOMEM);
2918 }
2919
2920 /*
2921 * Create a SIM.
2922 *
2923 * This naturally wastes a bit of memory. The alternative is to allocate
2924 * and register each bus as it is found, and then track them on a linked
2925 * list. Unfortunately, the driver has a few places where it needs to
2926 * look up the SIM based solely on bus number, and it's unclear whether
2927 * a list traversal would work for these situations.
2928 */
2929 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2930 CISS_PHYSICAL_BASE);
2931 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2932 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2933 if (sc->ciss_cam_sim == NULL) {
2934 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2935 return(ENOMEM);
2936 }
2937
2938 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2939 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2940 "ciss", sc,
2941 device_get_unit(sc->ciss_dev),
2942 &sc->ciss_mtx,
2943 2,
2944 sc->ciss_max_requests - 2,
2945 sc->ciss_cam_devq)) == NULL) {
2946 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2947 return(ENOMEM);
2948 }
2949
2950 /*
2951 * Register bus with this SIM.
2952 */
2953 mtx_lock(&sc->ciss_mtx);
2954 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2955 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2956 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2957 mtx_unlock(&sc->ciss_mtx);
2958 return (ENXIO);
2959 }
2960 }
2961 mtx_unlock(&sc->ciss_mtx);
2962 }
2963
2964 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2965 CISS_PHYSICAL_BASE; i++) {
2966 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2967 "ciss", sc,
2968 device_get_unit(sc->ciss_dev),
2969 &sc->ciss_mtx, 1,
2970 sc->ciss_max_requests - 2,
2971 sc->ciss_cam_devq)) == NULL) {
2972 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2973 return (ENOMEM);
2974 }
2975
2976 mtx_lock(&sc->ciss_mtx);
2977 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2978 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2979 mtx_unlock(&sc->ciss_mtx);
2980 return (ENXIO);
2981 }
2982 mtx_unlock(&sc->ciss_mtx);
2983 }
2984
2985 return(0);
2986 }
2987
2988 /************************************************************************
2989 * Initiate a rescan of the 'logical devices' SIM
2990 */
2991 static void
ciss_cam_rescan_target(struct ciss_softc * sc,int bus,int target)2992 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2993 {
2994 union ccb *ccb;
2995
2996 debug_called(1);
2997
2998 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2999 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
3000 return;
3001 }
3002
3003 if (xpt_create_path(&ccb->ccb_h.path, NULL,
3004 cam_sim_path(sc->ciss_cam_sim[bus]),
3005 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
3006 ciss_printf(sc, "rescan failed (can't create path)\n");
3007 xpt_free_ccb(ccb);
3008 return;
3009 }
3010 xpt_rescan(ccb);
3011 /* scan is now in progress */
3012 }
3013
3014 /************************************************************************
3015 * Handle requests coming from CAM
3016 */
3017 static void
ciss_cam_action(struct cam_sim * sim,union ccb * ccb)3018 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
3019 {
3020 struct ciss_softc *sc;
3021 struct ccb_scsiio *csio;
3022 int bus, target;
3023 int physical;
3024
3025 sc = cam_sim_softc(sim);
3026 bus = cam_sim_bus(sim);
3027 csio = (struct ccb_scsiio *)&ccb->csio;
3028 target = csio->ccb_h.target_id;
3029 physical = CISS_IS_PHYSICAL(bus);
3030
3031 switch (ccb->ccb_h.func_code) {
3032 /* perform SCSI I/O */
3033 case XPT_SCSI_IO:
3034 if (!ciss_cam_action_io(sim, csio))
3035 return;
3036 break;
3037
3038 /* perform geometry calculations */
3039 case XPT_CALC_GEOMETRY:
3040 {
3041 struct ccb_calc_geometry *ccg = &ccb->ccg;
3042 struct ciss_ldrive *ld;
3043
3044 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3045
3046 ld = NULL;
3047 if (!physical)
3048 ld = &sc->ciss_logical[bus][target];
3049
3050 /*
3051 * Use the cached geometry settings unless the fault tolerance
3052 * is invalid.
3053 */
3054 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
3055 u_int32_t secs_per_cylinder;
3056
3057 ccg->heads = 255;
3058 ccg->secs_per_track = 32;
3059 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3060 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3061 } else {
3062 ccg->heads = ld->cl_geometry.heads;
3063 ccg->secs_per_track = ld->cl_geometry.sectors;
3064 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3065 }
3066 ccb->ccb_h.status = CAM_REQ_CMP;
3067 break;
3068 }
3069
3070 /* handle path attribute inquiry */
3071 case XPT_PATH_INQ:
3072 {
3073 struct ccb_pathinq *cpi = &ccb->cpi;
3074 int sg_length;
3075
3076 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3077
3078 cpi->version_num = 1;
3079 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3080 cpi->target_sprt = 0;
3081 cpi->hba_misc = 0;
3082 cpi->max_target = MAX(sc->ciss_max_physical_target, sc->ciss_cfg->max_logical_supported);
3083 cpi->max_lun = 0; /* 'logical drive' channel only */
3084 if (ciss_initiator_id != CAM_TARGET_WILDCARD)
3085 cpi->initiator_id = ciss_initiator_id;
3086 else
3087 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3088 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3089 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN);
3090 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3091 cpi->unit_number = cam_sim_unit(sim);
3092 cpi->bus_id = cam_sim_bus(sim);
3093 cpi->base_transfer_speed = ciss_base_transfer_speed;
3094 cpi->transport = XPORT_SPI;
3095 cpi->transport_version = 2;
3096 cpi->protocol = PROTO_SCSI;
3097 cpi->protocol_version = SCSI_REV_2;
3098 if (sc->ciss_cfg->max_sg_length == 0) {
3099 sg_length = 17;
3100 } else {
3101 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3102 * Confusing bit here. max_sg_length is usually a power of 2. We always
3103 * need to subtract 1 to account for partial pages. Then we need to
3104 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3105 * Add 1 so we can then subtract it out in the assignment to maxio.
3106 * The reason for all these shenanigans is to create a maxio value that
3107 * creates IO operations to volumes that yield consistent operations
3108 * with good performance.
3109 */
3110 sg_length = sc->ciss_cfg->max_sg_length - 1;
3111 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3112 }
3113 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3114 ccb->ccb_h.status = CAM_REQ_CMP;
3115 break;
3116 }
3117
3118 case XPT_GET_TRAN_SETTINGS:
3119 {
3120 struct ccb_trans_settings *cts = &ccb->cts;
3121 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3122 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3123
3124 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", cam_sim_bus(sim),
3125 ctl->ccb_h.target_id);
3126 /* disconnect always OK */
3127 cts->protocol = PROTO_SCSI;
3128 cts->protocol_version = SCSI_REV_2;
3129 cts->transport = XPORT_SPI;
3130 cts->transport_version = 2;
3131
3132 spi->valid = CTS_SPI_VALID_DISC;
3133 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3134
3135 scsi->valid = CTS_SCSI_VALID_TQ;
3136 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3137
3138 cts->ccb_h.status = CAM_REQ_CMP;
3139 break;
3140 }
3141
3142 default: /* we can't do this */
3143 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3144 ccb->ccb_h.status = CAM_REQ_INVALID;
3145 break;
3146 }
3147
3148 xpt_done(ccb);
3149 }
3150
3151 /************************************************************************
3152 * Handle a CAM SCSI I/O request.
3153 */
3154 static int
ciss_cam_action_io(struct cam_sim * sim,struct ccb_scsiio * csio)3155 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3156 {
3157 struct ciss_softc *sc;
3158 int bus, target;
3159 struct ciss_request *cr;
3160 struct ciss_command *cc;
3161 int error;
3162
3163 sc = cam_sim_softc(sim);
3164 bus = cam_sim_bus(sim);
3165 target = csio->ccb_h.target_id;
3166
3167 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3168
3169 /* check that the CDB pointer is not to a physical address */
3170 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3171 debug(3, " CDB pointer is to physical address");
3172 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3173 }
3174
3175 /* abandon aborted ccbs or those that have failed validation */
3176 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3177 debug(3, "abandoning CCB due to abort/validation failure");
3178 return(EINVAL);
3179 }
3180
3181 /* handle emulation of some SCSI commands ourself */
3182 if (ciss_cam_emulate(sc, csio))
3183 return(0);
3184
3185 /*
3186 * Get a request to manage this command. If we can't, return the
3187 * ccb, freeze the queue and flag so that we unfreeze it when a
3188 * request completes.
3189 */
3190 if ((error = ciss_get_request(sc, &cr)) != 0) {
3191 xpt_freeze_simq(sim, 1);
3192 sc->ciss_flags |= CISS_FLAG_BUSY;
3193 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3194 return(error);
3195 }
3196
3197 /*
3198 * Build the command.
3199 */
3200 cc = cr->cr_cc;
3201 cr->cr_data = csio;
3202 cr->cr_length = csio->dxfer_len;
3203 cr->cr_complete = ciss_cam_complete;
3204 cr->cr_private = csio;
3205
3206 /*
3207 * Target the right logical volume.
3208 */
3209 if (CISS_IS_PHYSICAL(bus))
3210 cc->header.address =
3211 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3212 else
3213 cc->header.address =
3214 sc->ciss_logical[bus][target].cl_address;
3215 cc->cdb.cdb_length = csio->cdb_len;
3216 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3217 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3218 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3219 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3220 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3221 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3222 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3223 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3224 } else {
3225 cr->cr_data = NULL;
3226 cr->cr_flags = 0;
3227 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3228 }
3229 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3230 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3231 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3232 } else {
3233 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3234 }
3235
3236 /*
3237 * Submit the request to the adapter.
3238 *
3239 * Note that this may fail if we're unable to map the request (and
3240 * if we ever learn a transport layer other than simple, may fail
3241 * if the adapter rejects the command).
3242 */
3243 if ((error = ciss_start(cr)) != 0) {
3244 xpt_freeze_simq(sim, 1);
3245 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3246 if (error == EINPROGRESS) {
3247 error = 0;
3248 } else {
3249 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3250 ciss_release_request(cr);
3251 }
3252 return(error);
3253 }
3254
3255 return(0);
3256 }
3257
3258 /************************************************************************
3259 * Emulate SCSI commands the adapter doesn't handle as we might like.
3260 */
3261 static int
ciss_cam_emulate(struct ciss_softc * sc,struct ccb_scsiio * csio)3262 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3263 {
3264 int bus, target;
3265 u_int8_t opcode;
3266
3267 target = csio->ccb_h.target_id;
3268 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3269 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3270 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3271
3272 if (CISS_IS_PHYSICAL(bus)) {
3273 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3274 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3275 xpt_done((union ccb *)csio);
3276 return(1);
3277 } else
3278 return(0);
3279 }
3280
3281 /*
3282 * Handle requests for volumes that don't exist or are not online.
3283 * A selection timeout is slightly better than an illegal request.
3284 * Other errors might be better.
3285 */
3286 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3287 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3288 xpt_done((union ccb *)csio);
3289 return(1);
3290 }
3291
3292 /* if we have to fake Synchronise Cache */
3293 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3294 /*
3295 * If this is a Synchronise Cache command, typically issued when
3296 * a device is closed, flush the adapter and complete now.
3297 */
3298 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3299 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3300 ciss_flush_adapter(sc);
3301 csio->ccb_h.status |= CAM_REQ_CMP;
3302 xpt_done((union ccb *)csio);
3303 return(1);
3304 }
3305 }
3306
3307 /*
3308 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3309 * at least one LUN field to be pre created for us, so snag it and fill in
3310 * the least significant byte indicating 1 LUN here. Emulate the command
3311 * return to shut up warning on console of a CDB error. swb
3312 */
3313 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3314 csio->data_ptr[3] = 8;
3315 csio->ccb_h.status |= CAM_REQ_CMP;
3316 xpt_done((union ccb *)csio);
3317 return(1);
3318 }
3319
3320 return(0);
3321 }
3322
3323 /************************************************************************
3324 * Check for possibly-completed commands.
3325 */
3326 static void
ciss_cam_poll(struct cam_sim * sim)3327 ciss_cam_poll(struct cam_sim *sim)
3328 {
3329 cr_qhead_t qh;
3330 struct ciss_softc *sc = cam_sim_softc(sim);
3331
3332 debug_called(2);
3333
3334 STAILQ_INIT(&qh);
3335 if (sc->ciss_perf)
3336 ciss_perf_done(sc, &qh);
3337 else
3338 ciss_done(sc, &qh);
3339 ciss_complete(sc, &qh);
3340 }
3341
3342 /************************************************************************
3343 * Handle completion of a command - pass results back through the CCB
3344 */
3345 static void
ciss_cam_complete(struct ciss_request * cr)3346 ciss_cam_complete(struct ciss_request *cr)
3347 {
3348 struct ciss_softc *sc;
3349 struct ciss_command *cc;
3350 struct ciss_error_info *ce;
3351 struct ccb_scsiio *csio;
3352 int scsi_status;
3353 int command_status;
3354
3355 debug_called(2);
3356
3357 sc = cr->cr_sc;
3358 cc = cr->cr_cc;
3359 ce = (struct ciss_error_info *)&(cc->sg[0]);
3360 csio = (struct ccb_scsiio *)cr->cr_private;
3361
3362 /*
3363 * Extract status values from request.
3364 */
3365 ciss_report_request(cr, &command_status, &scsi_status);
3366 switch(command_status) {
3367 case CISS_CMD_STATUS_DATA_UNDERRUN:
3368 csio->resid = ce->residual_count;
3369 /* FALLTHROUGH */
3370 case CISS_CMD_STATUS_SUCCESS:
3371 csio->scsi_status = scsi_status;
3372 debug(2, "SCSI_STATUS_OK");
3373 csio->ccb_h.status |= CAM_REQ_CMP;
3374 break;
3375 case CISS_CMD_STATUS_TARGET_STATUS:
3376 csio->scsi_status = scsi_status;
3377 bzero(&csio->sense_data, SSD_FULL_SIZE);
3378 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3379 if (csio->sense_len > ce->sense_length)
3380 csio->sense_resid = csio->sense_len - ce->sense_length;
3381 else
3382 csio->sense_resid = 0;
3383 csio->resid = ce->residual_count;
3384 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3385 break;
3386 case CISS_CMD_STATUS_DATA_OVERRUN:
3387 csio->ccb_h.status |= CAM_DATA_RUN_ERR;
3388 break;
3389 default:
3390 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3391 break;
3392 }
3393
3394 /* handle post-command fixup */
3395 ciss_cam_complete_fixup(sc, csio);
3396
3397 ciss_release_request(cr);
3398 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3399 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3400 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3401 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3402 else
3403 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3404 }
3405 xpt_done((union ccb *)csio);
3406 }
3407
3408 /********************************************************************************
3409 * Fix up the result of some commands here.
3410 */
3411 static void
ciss_cam_complete_fixup(struct ciss_softc * sc,struct ccb_scsiio * csio)3412 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3413 {
3414 struct scsi_inquiry_data *inq;
3415 struct ciss_ldrive *cl;
3416 uint8_t *cdb;
3417 int bus, target;
3418
3419 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3420 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3421 if (cdb[0] == INQUIRY &&
3422 (cdb[1] & SI_EVPD) == 0 &&
3423 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3424 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3425 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3426 target = csio->ccb_h.target_id;
3427 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3428
3429 /*
3430 * If the controller is in JBOD mode, there are no logical volumes.
3431 * Let the disks be probed and dealt with via CAM. Else, mask off
3432 * the physical disks and setup the parts of the inq structure for
3433 * the logical volume. swb
3434 */
3435 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3436 if (CISS_IS_PHYSICAL(bus)) {
3437 if (SID_TYPE(inq) == T_DIRECT)
3438 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3439 return;
3440 }
3441 cl = &sc->ciss_logical[bus][target];
3442
3443 padstr(inq->vendor, "HP",
3444 SID_VENDOR_SIZE);
3445 padstr(inq->product,
3446 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3447 SID_PRODUCT_SIZE);
3448 padstr(inq->revision,
3449 ciss_name_ldrive_status(cl->cl_lstatus->status),
3450 SID_REVISION_SIZE);
3451 }
3452 }
3453 }
3454
3455 /********************************************************************************
3456 * Name the device at (target)
3457 *
3458 * XXX is this strictly correct?
3459 */
3460 static int
ciss_name_device(struct ciss_softc * sc,int bus,int target)3461 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3462 {
3463 struct cam_periph *periph;
3464 struct cam_path *path;
3465 int status;
3466
3467 if (CISS_IS_PHYSICAL(bus))
3468 return (0);
3469
3470 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3471 target, 0);
3472
3473 if (status == CAM_REQ_CMP) {
3474 xpt_path_lock(path);
3475 periph = cam_periph_find(path, NULL);
3476 xpt_path_unlock(path);
3477 xpt_free_path(path);
3478 if (periph != NULL) {
3479 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3480 periph->periph_name, periph->unit_number);
3481 return(0);
3482 }
3483 }
3484 sc->ciss_logical[bus][target].cl_name[0] = 0;
3485 return(ENOENT);
3486 }
3487
3488 /************************************************************************
3489 * Periodic status monitoring.
3490 */
3491 static void
ciss_periodic(void * arg)3492 ciss_periodic(void *arg)
3493 {
3494 struct ciss_softc *sc;
3495 struct ciss_request *cr = NULL;
3496 struct ciss_command *cc = NULL;
3497 int error = 0;
3498
3499 debug_called(1);
3500
3501 sc = (struct ciss_softc *)arg;
3502
3503 /*
3504 * Check the adapter heartbeat.
3505 */
3506 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3507 sc->ciss_heart_attack++;
3508 debug(0, "adapter heart attack in progress 0x%x/%d",
3509 sc->ciss_heartbeat, sc->ciss_heart_attack);
3510 if (sc->ciss_heart_attack == 3) {
3511 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3512 ciss_disable_adapter(sc);
3513 return;
3514 }
3515 } else {
3516 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3517 sc->ciss_heart_attack = 0;
3518 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3519 }
3520
3521 /*
3522 * Send the NOP message and wait for a response.
3523 */
3524 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3525 cc = cr->cr_cc;
3526 cr->cr_complete = ciss_nop_complete;
3527 cc->cdb.cdb_length = 1;
3528 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3529 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3530 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3531 cc->cdb.timeout = 0;
3532 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3533
3534 if ((error = ciss_start(cr)) != 0) {
3535 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3536 }
3537 }
3538
3539 /*
3540 * If the notify event request has died for some reason, or has
3541 * not started yet, restart it.
3542 */
3543 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3544 debug(0, "(re)starting Event Notify chain");
3545 ciss_notify_event(sc);
3546 }
3547
3548 /*
3549 * Reschedule.
3550 */
3551 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3552 }
3553
3554 static void
ciss_nop_complete(struct ciss_request * cr)3555 ciss_nop_complete(struct ciss_request *cr)
3556 {
3557 struct ciss_softc *sc;
3558 static int first_time = 1;
3559
3560 sc = cr->cr_sc;
3561 if (ciss_report_request(cr, NULL, NULL) != 0) {
3562 if (first_time == 1) {
3563 first_time = 0;
3564 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3565 }
3566 }
3567
3568 ciss_release_request(cr);
3569 }
3570
3571 /************************************************************************
3572 * Disable the adapter.
3573 *
3574 * The all requests in completed queue is failed with hardware error.
3575 * This will cause failover in a multipath configuration.
3576 */
3577 static void
ciss_disable_adapter(struct ciss_softc * sc)3578 ciss_disable_adapter(struct ciss_softc *sc)
3579 {
3580 cr_qhead_t qh;
3581 struct ciss_request *cr;
3582 struct ciss_command *cc;
3583 struct ciss_error_info *ce;
3584 int i;
3585
3586 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3587 pci_disable_busmaster(sc->ciss_dev);
3588 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3589
3590 STAILQ_INIT(&qh);
3591 for (i = 1; i < sc->ciss_max_requests; i++) {
3592 cr = &sc->ciss_request[i];
3593 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3594 continue;
3595
3596 cc = cr->cr_cc;
3597 ce = (struct ciss_error_info *)&(cc->sg[0]);
3598 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3599 ciss_enqueue_complete(cr, &qh);
3600 }
3601
3602 for (;;) {
3603 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3604 break;
3605
3606 /*
3607 * If the request has a callback, invoke it.
3608 */
3609 if (cr->cr_complete != NULL) {
3610 cr->cr_complete(cr);
3611 continue;
3612 }
3613
3614 /*
3615 * If someone is sleeping on this request, wake them up.
3616 */
3617 if (cr->cr_flags & CISS_REQ_SLEEP) {
3618 cr->cr_flags &= ~CISS_REQ_SLEEP;
3619 wakeup(cr);
3620 continue;
3621 }
3622 }
3623 }
3624
3625 /************************************************************************
3626 * Request a notification response from the adapter.
3627 *
3628 * If (cr) is NULL, this is the first request of the adapter, so
3629 * reset the adapter's message pointer and start with the oldest
3630 * message available.
3631 */
3632 static void
ciss_notify_event(struct ciss_softc * sc)3633 ciss_notify_event(struct ciss_softc *sc)
3634 {
3635 struct ciss_request *cr;
3636 struct ciss_command *cc;
3637 struct ciss_notify_cdb *cnc;
3638 int error;
3639
3640 debug_called(1);
3641
3642 cr = sc->ciss_periodic_notify;
3643
3644 /* get a request if we don't already have one */
3645 if (cr == NULL) {
3646 if ((error = ciss_get_request(sc, &cr)) != 0) {
3647 debug(0, "can't get notify event request");
3648 goto out;
3649 }
3650 sc->ciss_periodic_notify = cr;
3651 cr->cr_complete = ciss_notify_complete;
3652 debug(1, "acquired request %d", cr->cr_tag);
3653 }
3654
3655 /*
3656 * Get a databuffer if we don't already have one, note that the
3657 * adapter command wants a larger buffer than the actual
3658 * structure.
3659 */
3660 if (cr->cr_data == NULL) {
3661 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3662 debug(0, "can't get notify event request buffer");
3663 error = ENOMEM;
3664 goto out;
3665 }
3666 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3667 }
3668
3669 /* re-setup the request's command (since we never release it) XXX overkill*/
3670 ciss_preen_command(cr);
3671
3672 /* (re)build the notify event command */
3673 cc = cr->cr_cc;
3674 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3675 cc->header.address.physical.bus = 0;
3676 cc->header.address.physical.target = 0;
3677
3678 cc->cdb.cdb_length = sizeof(*cnc);
3679 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3680 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3681 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3682 cc->cdb.timeout = 0; /* no timeout, we hope */
3683
3684 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3685 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3686 cnc->opcode = CISS_OPCODE_READ;
3687 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3688 cnc->timeout = 0; /* no timeout, we hope */
3689 cnc->synchronous = 0;
3690 cnc->ordered = 0;
3691 cnc->seek_to_oldest = 0;
3692 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3693 cnc->new_only = 1;
3694 else
3695 cnc->new_only = 0;
3696 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3697
3698 /* submit the request */
3699 error = ciss_start(cr);
3700
3701 out:
3702 if (error) {
3703 if (cr != NULL) {
3704 if (cr->cr_data != NULL)
3705 free(cr->cr_data, CISS_MALLOC_CLASS);
3706 ciss_release_request(cr);
3707 }
3708 sc->ciss_periodic_notify = NULL;
3709 debug(0, "can't submit notify event request");
3710 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3711 } else {
3712 debug(1, "notify event submitted");
3713 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3714 }
3715 }
3716
3717 static void
ciss_notify_complete(struct ciss_request * cr)3718 ciss_notify_complete(struct ciss_request *cr)
3719 {
3720 struct ciss_notify *cn;
3721 struct ciss_softc *sc;
3722 int scsi_status;
3723 int command_status;
3724 debug_called(1);
3725
3726 cn = (struct ciss_notify *)cr->cr_data;
3727 sc = cr->cr_sc;
3728
3729 /*
3730 * Report request results, decode status.
3731 */
3732 ciss_report_request(cr, &command_status, &scsi_status);
3733
3734 /*
3735 * Abort the chain on a fatal error.
3736 *
3737 * XXX which of these are actually errors?
3738 */
3739 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3740 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3741 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3742 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3743 ciss_name_command_status(command_status));
3744 ciss_release_request(cr);
3745 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3746 return;
3747 }
3748
3749 /*
3750 * If the adapter gave us a text message, print it.
3751 */
3752 if (cn->message[0] != 0)
3753 ciss_printf(sc, "*** %.80s\n", cn->message);
3754
3755 debug(0, "notify event class %d subclass %d detail %d",
3756 cn->class, cn->subclass, cn->detail);
3757
3758 /*
3759 * If the response indicates that the notifier has been aborted,
3760 * release the notifier command.
3761 */
3762 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3763 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3764 (cn->detail == 1)) {
3765 debug(0, "notifier exiting");
3766 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3767 ciss_release_request(cr);
3768 sc->ciss_periodic_notify = NULL;
3769 wakeup(&sc->ciss_periodic_notify);
3770 } else {
3771 /* Handle notify events in a kernel thread */
3772 ciss_enqueue_notify(cr);
3773 sc->ciss_periodic_notify = NULL;
3774 wakeup(&sc->ciss_periodic_notify);
3775 wakeup(&sc->ciss_notify);
3776 }
3777 /*
3778 * Send a new notify event command, if we're not aborting.
3779 */
3780 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3781 ciss_notify_event(sc);
3782 }
3783 }
3784
3785 /************************************************************************
3786 * Abort the Notify Event chain.
3787 *
3788 * Note that we can't just abort the command in progress; we have to
3789 * explicitly issue an Abort Notify Event command in order for the
3790 * adapter to clean up correctly.
3791 *
3792 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3793 * the chain will not restart itself.
3794 */
3795 static int
ciss_notify_abort(struct ciss_softc * sc)3796 ciss_notify_abort(struct ciss_softc *sc)
3797 {
3798 struct ciss_request *cr;
3799 struct ciss_command *cc;
3800 struct ciss_notify_cdb *cnc;
3801 int error, command_status, scsi_status;
3802
3803 debug_called(1);
3804
3805 cr = NULL;
3806 error = 0;
3807
3808 /* verify that there's an outstanding command */
3809 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3810 goto out;
3811
3812 /* get a command to issue the abort with */
3813 if ((error = ciss_get_request(sc, &cr)))
3814 goto out;
3815
3816 /* get a buffer for the result */
3817 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3818 debug(0, "can't get notify event request buffer");
3819 error = ENOMEM;
3820 goto out;
3821 }
3822 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3823
3824 /* build the CDB */
3825 cc = cr->cr_cc;
3826 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3827 cc->header.address.physical.bus = 0;
3828 cc->header.address.physical.target = 0;
3829 cc->cdb.cdb_length = sizeof(*cnc);
3830 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3831 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3832 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3833 cc->cdb.timeout = 0; /* no timeout, we hope */
3834
3835 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3836 bzero(cnc, sizeof(*cnc));
3837 cnc->opcode = CISS_OPCODE_WRITE;
3838 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3839 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3840 #if 0
3841 ciss_print_request(cr);
3842 #endif
3843
3844 /*
3845 * Submit the request and wait for it to complete.
3846 */
3847 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3848 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3849 goto out;
3850 }
3851
3852 /*
3853 * Check response.
3854 */
3855 ciss_report_request(cr, &command_status, &scsi_status);
3856 switch(command_status) {
3857 case CISS_CMD_STATUS_SUCCESS:
3858 break;
3859 case CISS_CMD_STATUS_INVALID_COMMAND:
3860 /*
3861 * Some older adapters don't support the CISS version of this
3862 * command. Fall back to using the BMIC version.
3863 */
3864 error = ciss_notify_abort_bmic(sc);
3865 if (error != 0)
3866 goto out;
3867 break;
3868
3869 case CISS_CMD_STATUS_TARGET_STATUS:
3870 /*
3871 * This can happen if the adapter thinks there wasn't an outstanding
3872 * Notify Event command but we did. We clean up here.
3873 */
3874 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3875 if (sc->ciss_periodic_notify != NULL)
3876 ciss_release_request(sc->ciss_periodic_notify);
3877 error = 0;
3878 goto out;
3879 }
3880 /* FALLTHROUGH */
3881
3882 default:
3883 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3884 ciss_name_command_status(command_status));
3885 error = EIO;
3886 goto out;
3887 }
3888
3889 /*
3890 * Sleep waiting for the notifier command to complete. Note
3891 * that if it doesn't, we may end up in a bad situation, since
3892 * the adapter may deliver it later. Also note that the adapter
3893 * requires the Notify Event command to be cancelled in order to
3894 * maintain internal bookkeeping.
3895 */
3896 while (sc->ciss_periodic_notify != NULL) {
3897 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3898 if (error == EWOULDBLOCK) {
3899 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3900 break;
3901 }
3902 }
3903
3904 out:
3905 /* release the cancel request */
3906 if (cr != NULL) {
3907 if (cr->cr_data != NULL)
3908 free(cr->cr_data, CISS_MALLOC_CLASS);
3909 ciss_release_request(cr);
3910 }
3911 if (error == 0)
3912 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3913 return(error);
3914 }
3915
3916 /************************************************************************
3917 * Abort the Notify Event chain using a BMIC command.
3918 */
3919 static int
ciss_notify_abort_bmic(struct ciss_softc * sc)3920 ciss_notify_abort_bmic(struct ciss_softc *sc)
3921 {
3922 struct ciss_request *cr;
3923 int error, command_status;
3924
3925 debug_called(1);
3926
3927 cr = NULL;
3928 error = 0;
3929
3930 /* verify that there's an outstanding command */
3931 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3932 goto out;
3933
3934 /*
3935 * Build a BMIC command to cancel the Notify on Event command.
3936 *
3937 * Note that we are sending a CISS opcode here. Odd.
3938 */
3939 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3940 NULL, 0)) != 0)
3941 goto out;
3942
3943 /*
3944 * Submit the request and wait for it to complete.
3945 */
3946 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3947 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3948 goto out;
3949 }
3950
3951 /*
3952 * Check response.
3953 */
3954 ciss_report_request(cr, &command_status, NULL);
3955 switch(command_status) {
3956 case CISS_CMD_STATUS_SUCCESS:
3957 break;
3958 default:
3959 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3960 ciss_name_command_status(command_status));
3961 error = EIO;
3962 goto out;
3963 }
3964
3965 out:
3966 if (cr != NULL)
3967 ciss_release_request(cr);
3968 return(error);
3969 }
3970
3971 /************************************************************************
3972 * Handle rescanning all the logical volumes when a notify event
3973 * causes the drives to come online or offline.
3974 */
3975 static void
ciss_notify_rescan_logical(struct ciss_softc * sc)3976 ciss_notify_rescan_logical(struct ciss_softc *sc)
3977 {
3978 struct ciss_lun_report *cll;
3979 struct ciss_ldrive *ld;
3980 int i, j, ndrives;
3981
3982 /*
3983 * We must rescan all logical volumes to get the right logical
3984 * drive address.
3985 */
3986 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3987 sc->ciss_cfg->max_logical_supported);
3988 if (cll == NULL)
3989 return;
3990
3991 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3992
3993 /*
3994 * Delete any of the drives which were destroyed by the
3995 * firmware.
3996 */
3997 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3998 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3999 ld = &sc->ciss_logical[i][j];
4000
4001 if (ld->cl_update == 0)
4002 continue;
4003
4004 if (ld->cl_status != CISS_LD_ONLINE) {
4005 ciss_cam_rescan_target(sc, i, j);
4006 ld->cl_update = 0;
4007 if (ld->cl_ldrive)
4008 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
4009 if (ld->cl_lstatus)
4010 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
4011
4012 ld->cl_ldrive = NULL;
4013 ld->cl_lstatus = NULL;
4014 }
4015 }
4016 }
4017
4018 /*
4019 * Scan for new drives.
4020 */
4021 for (i = 0; i < ndrives; i++) {
4022 int bus, target;
4023
4024 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
4025 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
4026 ld = &sc->ciss_logical[bus][target];
4027
4028 if (ld->cl_update == 0)
4029 continue;
4030
4031 ld->cl_update = 0;
4032 ld->cl_address = cll->lun[i];
4033 ld->cl_controller = &sc->ciss_controllers[bus];
4034 if (ciss_identify_logical(sc, ld) == 0) {
4035 ciss_cam_rescan_target(sc, bus, target);
4036 }
4037 }
4038 free(cll, CISS_MALLOC_CLASS);
4039 }
4040
4041 /************************************************************************
4042 * Handle a notify event relating to the status of a logical drive.
4043 *
4044 * XXX need to be able to defer some of these to properly handle
4045 * calling the "ID Physical drive" command, unless the 'extended'
4046 * drive IDs are always in BIG_MAP format.
4047 */
4048 static void
ciss_notify_logical(struct ciss_softc * sc,struct ciss_notify * cn)4049 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4050 {
4051 struct ciss_ldrive *ld;
4052 int ostatus, bus, target;
4053
4054 debug_called(2);
4055
4056 bus = cn->device.physical.bus;
4057 target = cn->data.logical_status.logical_drive;
4058 ld = &sc->ciss_logical[bus][target];
4059
4060 switch (cn->subclass) {
4061 case CISS_NOTIFY_LOGICAL_STATUS:
4062 switch (cn->detail) {
4063 case 0:
4064 ciss_name_device(sc, bus, target);
4065 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4066 cn->data.logical_status.logical_drive, ld->cl_name,
4067 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4068 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4069 cn->data.logical_status.spare_state,
4070 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4071
4072 /*
4073 * Update our idea of the drive's status.
4074 */
4075 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4076 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4077 if (ld->cl_lstatus != NULL)
4078 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4079
4080 /*
4081 * Have CAM rescan the drive if its status has changed.
4082 */
4083 if (ostatus != ld->cl_status) {
4084 ld->cl_update = 1;
4085 ciss_notify_rescan_logical(sc);
4086 }
4087
4088 break;
4089
4090 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4091 ciss_name_device(sc, bus, target);
4092 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4093 cn->data.logical_status.logical_drive, ld->cl_name);
4094 ciss_accept_media(sc, ld);
4095
4096 ld->cl_update = 1;
4097 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4098 ciss_notify_rescan_logical(sc);
4099 break;
4100
4101 case 2:
4102 case 3:
4103 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4104 cn->data.rebuild_aborted.logical_drive,
4105 ld->cl_name,
4106 (cn->detail == 2) ? "read" : "write");
4107 break;
4108 }
4109 break;
4110
4111 case CISS_NOTIFY_LOGICAL_ERROR:
4112 if (cn->detail == 0) {
4113 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4114 cn->data.io_error.logical_drive,
4115 ld->cl_name,
4116 cn->data.io_error.failure_bus,
4117 cn->data.io_error.failure_drive);
4118 /* XXX should we take the drive down at this point, or will we be told? */
4119 }
4120 break;
4121
4122 case CISS_NOTIFY_LOGICAL_SURFACE:
4123 if (cn->detail == 0)
4124 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4125 cn->data.consistency_completed.logical_drive,
4126 ld->cl_name);
4127 break;
4128 }
4129 }
4130
4131 /************************************************************************
4132 * Handle a notify event relating to the status of a physical drive.
4133 */
4134 static void
ciss_notify_physical(struct ciss_softc * sc,struct ciss_notify * cn)4135 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4136 {
4137 }
4138
4139 /************************************************************************
4140 * Handle a notify event relating to the status of a physical drive.
4141 */
4142 static void
ciss_notify_hotplug(struct ciss_softc * sc,struct ciss_notify * cn)4143 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4144 {
4145 struct ciss_lun_report *cll = NULL;
4146 int bus, target;
4147
4148 switch (cn->subclass) {
4149 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4150 case CISS_NOTIFY_HOTPLUG_NONDISK:
4151 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4152 target =
4153 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4154
4155 if (cn->detail == 0) {
4156 /*
4157 * Mark the device offline so that it'll start producing selection
4158 * timeouts to the upper layer.
4159 */
4160 if ((bus >= 0) && (target >= 0))
4161 sc->ciss_physical[bus][target].cp_online = 0;
4162 } else {
4163 /*
4164 * Rescan the physical lun list for new items
4165 */
4166 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4167 sc->ciss_cfg->max_physical_supported);
4168 if (cll == NULL) {
4169 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4170 break;
4171 }
4172 ciss_filter_physical(sc, cll);
4173 }
4174 break;
4175
4176 default:
4177 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4178 return;
4179 }
4180
4181 if (cll != NULL)
4182 free(cll, CISS_MALLOC_CLASS);
4183 }
4184
4185 /************************************************************************
4186 * Handle deferred processing of notify events. Notify events may need
4187 * sleep which is unsafe during an interrupt.
4188 */
4189 static void
ciss_notify_thread(void * arg)4190 ciss_notify_thread(void *arg)
4191 {
4192 struct ciss_softc *sc;
4193 struct ciss_request *cr;
4194 struct ciss_notify *cn;
4195
4196 sc = (struct ciss_softc *)arg;
4197 mtx_lock(&sc->ciss_mtx);
4198
4199 for (;;) {
4200 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4201 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4202 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4203 }
4204
4205 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4206 break;
4207
4208 cr = ciss_dequeue_notify(sc);
4209
4210 if (cr == NULL) {
4211 /*
4212 * We get a NULL message sometimes when unplugging/replugging
4213 * stuff But this indicates a bug, since we only wake this thread
4214 * when we (a) set the THREAD_SHUT flag, or (b) we have enqueued
4215 * something. Since it's reported around errors, it may be a
4216 * locking bug related to ciss_flags being modified in multiple
4217 * threads some without ciss_mtx held. Or there's some other
4218 * way we either fail to sleep or corrupt the ciss_flags.
4219 */
4220 ciss_printf(sc, "Driver bug: NULL notify event received\n");
4221 continue;
4222 }
4223
4224 cn = (struct ciss_notify *)cr->cr_data;
4225
4226 switch (cn->class) {
4227 case CISS_NOTIFY_HOTPLUG:
4228 ciss_notify_hotplug(sc, cn);
4229 break;
4230 case CISS_NOTIFY_LOGICAL:
4231 ciss_notify_logical(sc, cn);
4232 break;
4233 case CISS_NOTIFY_PHYSICAL:
4234 ciss_notify_physical(sc, cn);
4235 break;
4236 }
4237
4238 ciss_release_request(cr);
4239 }
4240 sc->ciss_notify_thread = NULL;
4241 wakeup(&sc->ciss_notify_thread);
4242
4243 mtx_unlock(&sc->ciss_mtx);
4244 kproc_exit(0);
4245 }
4246
4247 /************************************************************************
4248 * Start the notification kernel thread.
4249 */
4250 static void
ciss_spawn_notify_thread(struct ciss_softc * sc)4251 ciss_spawn_notify_thread(struct ciss_softc *sc)
4252 {
4253
4254 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4255 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4256 device_get_unit(sc->ciss_dev)))
4257 panic("Could not create notify thread\n");
4258 }
4259
4260 /************************************************************************
4261 * Kill the notification kernel thread.
4262 */
4263 static void
ciss_kill_notify_thread(struct ciss_softc * sc)4264 ciss_kill_notify_thread(struct ciss_softc *sc)
4265 {
4266
4267 if (sc->ciss_notify_thread == NULL)
4268 return;
4269
4270 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4271 wakeup(&sc->ciss_notify);
4272 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4273 }
4274
4275 /************************************************************************
4276 * Print a request.
4277 */
4278 #ifdef DDB
4279 static void
ciss_print_request(struct ciss_request * cr)4280 ciss_print_request(struct ciss_request *cr)
4281 {
4282 struct ciss_softc *sc;
4283 struct ciss_command *cc;
4284 int i;
4285
4286 sc = cr->cr_sc;
4287 cc = cr->cr_cc;
4288
4289 ciss_printf(sc, "REQUEST @ %p\n", cr);
4290 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4291 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4292 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4293 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4294 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4295 switch(cc->header.address.mode.mode) {
4296 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4297 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4298 ciss_printf(sc, " physical bus %d target %d\n",
4299 cc->header.address.physical.bus, cc->header.address.physical.target);
4300 break;
4301 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4302 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4303 break;
4304 }
4305 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4306 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4307 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4308 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4309 cc->cdb.cdb_length,
4310 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4311 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4312 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4313 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4314 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4315 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4316 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4317 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4318
4319 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4320 /* XXX print error info */
4321 } else {
4322 /* since we don't use chained s/g, don't support it here */
4323 for (i = 0; i < cc->header.sg_in_list; i++) {
4324 if ((i % 4) == 0)
4325 ciss_printf(sc, " ");
4326 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4327 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4328 printf("\n");
4329 }
4330 }
4331 }
4332 #endif
4333
4334 /************************************************************************
4335 * Print information about the status of a logical drive.
4336 */
4337 static void
ciss_print_ldrive(struct ciss_softc * sc,struct ciss_ldrive * ld)4338 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4339 {
4340 int bus, target, i;
4341
4342 if (ld->cl_lstatus == NULL) {
4343 printf("does not exist\n");
4344 return;
4345 }
4346
4347 /* print drive status */
4348 switch(ld->cl_lstatus->status) {
4349 case CISS_LSTATUS_OK:
4350 printf("online\n");
4351 break;
4352 case CISS_LSTATUS_INTERIM_RECOVERY:
4353 printf("in interim recovery mode\n");
4354 break;
4355 case CISS_LSTATUS_READY_RECOVERY:
4356 printf("ready to begin recovery\n");
4357 break;
4358 case CISS_LSTATUS_RECOVERING:
4359 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4360 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4361 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4362 bus, target, ld->cl_lstatus->blocks_to_recover);
4363 break;
4364 case CISS_LSTATUS_EXPANDING:
4365 printf("being expanded, %u blocks remaining\n",
4366 ld->cl_lstatus->blocks_to_recover);
4367 break;
4368 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4369 printf("queued for expansion\n");
4370 break;
4371 case CISS_LSTATUS_FAILED:
4372 printf("queued for expansion\n");
4373 break;
4374 case CISS_LSTATUS_WRONG_PDRIVE:
4375 printf("wrong physical drive inserted\n");
4376 break;
4377 case CISS_LSTATUS_MISSING_PDRIVE:
4378 printf("missing a needed physical drive\n");
4379 break;
4380 case CISS_LSTATUS_BECOMING_READY:
4381 printf("becoming ready\n");
4382 break;
4383 }
4384
4385 /* print failed physical drives */
4386 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4387 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4388 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4389 if (bus == -1)
4390 continue;
4391 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4392 ld->cl_lstatus->drive_failure_map[i]);
4393 }
4394 }
4395
4396 #ifdef DDB
4397 #include <ddb/ddb.h>
4398 /************************************************************************
4399 * Print information about the controller/driver.
4400 */
4401 static void
ciss_print_adapter(struct ciss_softc * sc)4402 ciss_print_adapter(struct ciss_softc *sc)
4403 {
4404 int i, j;
4405
4406 ciss_printf(sc, "ADAPTER:\n");
4407 for (i = 0; i < CISSQ_COUNT; i++) {
4408 ciss_printf(sc, "%s %d/%d\n",
4409 i == 0 ? "free" :
4410 i == 1 ? "busy" : "complete",
4411 sc->ciss_qstat[i].q_length,
4412 sc->ciss_qstat[i].q_max);
4413 }
4414 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4415 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4416 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4417
4418 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4419 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4420 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4421 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4422 }
4423 }
4424
4425 /* XXX Should physical drives be printed out here? */
4426
4427 for (i = 1; i < sc->ciss_max_requests; i++)
4428 ciss_print_request(sc->ciss_request + i);
4429 }
4430
4431 /* DDB hook */
DB_COMMAND(ciss_prt,db_ciss_prt)4432 DB_COMMAND(ciss_prt, db_ciss_prt)
4433 {
4434 struct ciss_softc *sc;
4435 devclass_t dc;
4436 int maxciss, i;
4437
4438 dc = devclass_find("ciss");
4439 if ( dc == NULL ) {
4440 printf("%s: can't find devclass!\n", __func__);
4441 return;
4442 }
4443 maxciss = devclass_get_maxunit(dc);
4444 for (i = 0; i < maxciss; i++) {
4445 sc = devclass_get_softc(dc, i);
4446 ciss_print_adapter(sc);
4447 }
4448 }
4449 #endif
4450
4451 /************************************************************************
4452 * Return a name for a logical drive status value.
4453 */
4454 static const char *
ciss_name_ldrive_status(int status)4455 ciss_name_ldrive_status(int status)
4456 {
4457 switch (status) {
4458 case CISS_LSTATUS_OK:
4459 return("OK");
4460 case CISS_LSTATUS_FAILED:
4461 return("failed");
4462 case CISS_LSTATUS_NOT_CONFIGURED:
4463 return("not configured");
4464 case CISS_LSTATUS_INTERIM_RECOVERY:
4465 return("interim recovery");
4466 case CISS_LSTATUS_READY_RECOVERY:
4467 return("ready for recovery");
4468 case CISS_LSTATUS_RECOVERING:
4469 return("recovering");
4470 case CISS_LSTATUS_WRONG_PDRIVE:
4471 return("wrong physical drive inserted");
4472 case CISS_LSTATUS_MISSING_PDRIVE:
4473 return("missing physical drive");
4474 case CISS_LSTATUS_EXPANDING:
4475 return("expanding");
4476 case CISS_LSTATUS_BECOMING_READY:
4477 return("becoming ready");
4478 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4479 return("queued for expansion");
4480 }
4481 return("unknown status");
4482 }
4483
4484 /************************************************************************
4485 * Return an online/offline/nonexistent value for a logical drive
4486 * status value.
4487 */
4488 static int
ciss_decode_ldrive_status(int status)4489 ciss_decode_ldrive_status(int status)
4490 {
4491 switch(status) {
4492 case CISS_LSTATUS_NOT_CONFIGURED:
4493 return(CISS_LD_NONEXISTENT);
4494
4495 case CISS_LSTATUS_OK:
4496 case CISS_LSTATUS_INTERIM_RECOVERY:
4497 case CISS_LSTATUS_READY_RECOVERY:
4498 case CISS_LSTATUS_RECOVERING:
4499 case CISS_LSTATUS_EXPANDING:
4500 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4501 return(CISS_LD_ONLINE);
4502
4503 case CISS_LSTATUS_FAILED:
4504 case CISS_LSTATUS_WRONG_PDRIVE:
4505 case CISS_LSTATUS_MISSING_PDRIVE:
4506 case CISS_LSTATUS_BECOMING_READY:
4507 default:
4508 return(CISS_LD_OFFLINE);
4509 }
4510 }
4511
4512 /************************************************************************
4513 * Return a name for a logical drive's organisation.
4514 */
4515 static const char *
ciss_name_ldrive_org(int org)4516 ciss_name_ldrive_org(int org)
4517 {
4518 switch(org) {
4519 case CISS_LDRIVE_RAID0:
4520 return("RAID 0");
4521 case CISS_LDRIVE_RAID1:
4522 return("RAID 1(1+0)");
4523 case CISS_LDRIVE_RAID4:
4524 return("RAID 4");
4525 case CISS_LDRIVE_RAID5:
4526 return("RAID 5");
4527 case CISS_LDRIVE_RAID51:
4528 return("RAID 5+1");
4529 case CISS_LDRIVE_RAIDADG:
4530 return("RAID ADG");
4531 }
4532 return("unknown");
4533 }
4534
4535 /************************************************************************
4536 * Return a name for a command status value.
4537 */
4538 static const char *
ciss_name_command_status(int status)4539 ciss_name_command_status(int status)
4540 {
4541 switch(status) {
4542 case CISS_CMD_STATUS_SUCCESS:
4543 return("success");
4544 case CISS_CMD_STATUS_TARGET_STATUS:
4545 return("target status");
4546 case CISS_CMD_STATUS_DATA_UNDERRUN:
4547 return("data underrun");
4548 case CISS_CMD_STATUS_DATA_OVERRUN:
4549 return("data overrun");
4550 case CISS_CMD_STATUS_INVALID_COMMAND:
4551 return("invalid command");
4552 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4553 return("protocol error");
4554 case CISS_CMD_STATUS_HARDWARE_ERROR:
4555 return("hardware error");
4556 case CISS_CMD_STATUS_CONNECTION_LOST:
4557 return("connection lost");
4558 case CISS_CMD_STATUS_ABORTED:
4559 return("aborted");
4560 case CISS_CMD_STATUS_ABORT_FAILED:
4561 return("abort failed");
4562 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4563 return("unsolicited abort");
4564 case CISS_CMD_STATUS_TIMEOUT:
4565 return("timeout");
4566 case CISS_CMD_STATUS_UNABORTABLE:
4567 return("unabortable");
4568 }
4569 return("unknown status");
4570 }
4571
4572 /************************************************************************
4573 * Handle an open on the control device.
4574 */
4575 static int
ciss_open(struct cdev * dev,int flags,int fmt,struct thread * p)4576 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4577 {
4578 struct ciss_softc *sc;
4579
4580 debug_called(1);
4581
4582 sc = (struct ciss_softc *)dev->si_drv1;
4583
4584 /* we might want to veto if someone already has us open */
4585
4586 mtx_lock(&sc->ciss_mtx);
4587 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4588 mtx_unlock(&sc->ciss_mtx);
4589 return(0);
4590 }
4591
4592 /************************************************************************
4593 * Handle the last close on the control device.
4594 */
4595 static int
ciss_close(struct cdev * dev,int flags,int fmt,struct thread * p)4596 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4597 {
4598 struct ciss_softc *sc;
4599
4600 debug_called(1);
4601
4602 sc = (struct ciss_softc *)dev->si_drv1;
4603
4604 mtx_lock(&sc->ciss_mtx);
4605 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4606 mtx_unlock(&sc->ciss_mtx);
4607 return (0);
4608 }
4609
4610 /********************************************************************************
4611 * Handle adapter-specific control operations.
4612 *
4613 * Note that the API here is compatible with the Linux driver, in order to
4614 * simplify the porting of Compaq's userland tools.
4615 */
4616 static int
ciss_ioctl(struct cdev * dev,u_long cmd,caddr_t addr,int32_t flag,struct thread * p)4617 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4618 {
4619 struct ciss_softc *sc;
4620 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4621 #ifdef __amd64__
4622 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4623 IOCTL_Command_struct ioc_swab;
4624 #endif
4625 int error;
4626
4627 debug_called(1);
4628
4629 sc = (struct ciss_softc *)dev->si_drv1;
4630 error = 0;
4631 mtx_lock(&sc->ciss_mtx);
4632
4633 switch(cmd) {
4634 case CCISS_GETQSTATS:
4635 {
4636 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4637
4638 switch (cr->cs_item) {
4639 case CISSQ_FREE:
4640 case CISSQ_NOTIFY:
4641 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4642 sizeof(struct ciss_qstat));
4643 break;
4644 default:
4645 error = ENOIOCTL;
4646 break;
4647 }
4648
4649 break;
4650 }
4651
4652 case CCISS_GETPCIINFO:
4653 {
4654 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4655
4656 pis->bus = pci_get_bus(sc->ciss_dev);
4657 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4658 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4659 pci_get_subdevice(sc->ciss_dev);
4660
4661 break;
4662 }
4663
4664 case CCISS_GETINTINFO:
4665 {
4666 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4667
4668 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4669 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4670
4671 break;
4672 }
4673
4674 case CCISS_SETINTINFO:
4675 {
4676 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4677
4678 if ((cis->delay == 0) && (cis->count == 0)) {
4679 error = EINVAL;
4680 break;
4681 }
4682
4683 /*
4684 * XXX apparently this is only safe if the controller is idle,
4685 * we should suspend it before doing this.
4686 */
4687 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4688 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4689
4690 if (ciss_update_config(sc))
4691 error = EIO;
4692
4693 /* XXX resume the controller here */
4694 break;
4695 }
4696
4697 case CCISS_GETNODENAME:
4698 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4699 sizeof(NodeName_type));
4700 break;
4701
4702 case CCISS_SETNODENAME:
4703 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4704 sizeof(NodeName_type));
4705 if (ciss_update_config(sc))
4706 error = EIO;
4707 break;
4708
4709 case CCISS_GETHEARTBEAT:
4710 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4711 break;
4712
4713 case CCISS_GETBUSTYPES:
4714 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4715 break;
4716
4717 case CCISS_GETFIRMVER:
4718 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4719 sizeof(FirmwareVer_type));
4720 break;
4721
4722 case CCISS_GETDRIVERVER:
4723 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4724 break;
4725
4726 case CCISS_REVALIDVOLS:
4727 /*
4728 * This is a bit ugly; to do it "right" we really need
4729 * to find any disks that have changed, kick CAM off them,
4730 * then rescan only these disks. It'd be nice if they
4731 * a) told us which disk(s) they were going to play with,
4732 * and b) which ones had arrived. 8(
4733 */
4734 break;
4735
4736 #ifdef __amd64__
4737 case CCISS_PASSTHRU32:
4738 ioc_swab.LUN_info = ioc32->LUN_info;
4739 ioc_swab.Request = ioc32->Request;
4740 ioc_swab.error_info = ioc32->error_info;
4741 ioc_swab.buf_size = ioc32->buf_size;
4742 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4743 ioc = &ioc_swab;
4744 /* FALLTHROUGH */
4745 #endif
4746
4747 case CCISS_PASSTHRU:
4748 error = ciss_user_command(sc, ioc);
4749 break;
4750
4751 default:
4752 debug(0, "unknown ioctl 0x%lx", cmd);
4753
4754 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4755 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4756 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4757 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4758 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4759 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4760 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4761 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4762 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4763 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4764 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4765
4766 error = ENOIOCTL;
4767 break;
4768 }
4769
4770 mtx_unlock(&sc->ciss_mtx);
4771 return(error);
4772 }
4773