2 * Copyright (c) 2001 Michael Smith
3 * Copyright (c) 2004 Paul Saab
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Common Interface for SCSI-3 Support driver.
33 * CISS claims to provide a common interface between a generic SCSI
34 * transport and an intelligent host adapter.
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.
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.
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.
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.
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
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.
77 #include <sys/param.h>
78 #include <sys/systm.h>
79 #include <sys/malloc.h>
80 #include <sys/kernel.h>
84 #include <sys/kthread.h>
85 #include <sys/queue.h>
86 #include <sys/sysctl.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>
96 #include <machine/bus.h>
97 #include <machine/endian.h>
98 #include <machine/resource.h>
101 #include <dev/pci/pcireg.h>
102 #include <dev/pci/pcivar.h>
104 #include <dev/ciss/cissreg.h>
105 #include <dev/ciss/cissio.h>
106 #include <dev/ciss/cissvar.h>
108 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
109 "ciss internal data buffers");
112 static int ciss_lookup(device_t dev);
113 static int ciss_probe(device_t dev);
114 static int ciss_attach(device_t dev);
115 static int ciss_detach(device_t dev);
116 static int ciss_shutdown(device_t dev);
118 /* (de)initialisation functions, control wrappers */
119 static int ciss_init_pci(struct ciss_softc *sc);
120 static int ciss_setup_msix(struct ciss_softc *sc);
121 static int ciss_init_perf(struct ciss_softc *sc);
122 static int ciss_wait_adapter(struct ciss_softc *sc);
123 static int ciss_flush_adapter(struct ciss_softc *sc);
124 static int ciss_init_requests(struct ciss_softc *sc);
125 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
126 int nseg, int error);
127 static int ciss_identify_adapter(struct ciss_softc *sc);
128 static int ciss_init_logical(struct ciss_softc *sc);
129 static int ciss_init_physical(struct ciss_softc *sc);
130 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
131 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
132 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
133 static int ciss_update_config(struct ciss_softc *sc);
134 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
135 static void ciss_init_sysctl(struct ciss_softc *sc);
136 static void ciss_soft_reset(struct ciss_softc *sc);
137 static void ciss_free(struct ciss_softc *sc);
138 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
139 static void ciss_kill_notify_thread(struct ciss_softc *sc);
141 /* request submission/completion */
142 static int ciss_start(struct ciss_request *cr);
143 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
144 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
145 static void ciss_intr(void *arg);
146 static void ciss_perf_intr(void *arg);
147 static void ciss_perf_msi_intr(void *arg);
148 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
149 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
150 static int ciss_synch_request(struct ciss_request *cr, int timeout);
151 static int ciss_poll_request(struct ciss_request *cr, int timeout);
152 static int ciss_wait_request(struct ciss_request *cr, int timeout);
154 static int ciss_abort_request(struct ciss_request *cr);
157 /* request queueing */
158 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
159 static void ciss_preen_command(struct ciss_request *cr);
160 static void ciss_release_request(struct ciss_request *cr);
162 /* request helpers */
163 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
164 int opcode, void **bufp, size_t bufsize);
165 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
168 static int ciss_map_request(struct ciss_request *cr);
169 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
170 int nseg, int error);
171 static void ciss_unmap_request(struct ciss_request *cr);
174 static int ciss_cam_init(struct ciss_softc *sc);
175 static void ciss_cam_rescan_target(struct ciss_softc *sc,
176 int bus, int target);
177 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
178 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
179 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
180 static void ciss_cam_poll(struct cam_sim *sim);
181 static void ciss_cam_complete(struct ciss_request *cr);
182 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
183 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
185 /* periodic status monitoring */
186 static void ciss_periodic(void *arg);
187 static void ciss_nop_complete(struct ciss_request *cr);
188 static void ciss_disable_adapter(struct ciss_softc *sc);
189 static void ciss_notify_event(struct ciss_softc *sc);
190 static void ciss_notify_complete(struct ciss_request *cr);
191 static int ciss_notify_abort(struct ciss_softc *sc);
192 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
193 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
194 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
195 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
197 /* debugging output */
198 static void ciss_print_request(struct ciss_request *cr);
199 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
200 static const char *ciss_name_ldrive_status(int status);
201 static int ciss_decode_ldrive_status(int status);
202 static const char *ciss_name_ldrive_org(int org);
203 static const char *ciss_name_command_status(int status);
208 static device_method_t ciss_methods[] = {
209 /* Device interface */
210 DEVMETHOD(device_probe, ciss_probe),
211 DEVMETHOD(device_attach, ciss_attach),
212 DEVMETHOD(device_detach, ciss_detach),
213 DEVMETHOD(device_shutdown, ciss_shutdown),
217 static driver_t ciss_pci_driver = {
220 sizeof(struct ciss_softc)
223 static devclass_t ciss_devclass;
224 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
225 MODULE_DEPEND(ciss, cam, 1, 1, 1);
226 MODULE_DEPEND(ciss, pci, 1, 1, 1);
229 * Control device interface.
231 static d_open_t ciss_open;
232 static d_close_t ciss_close;
233 static d_ioctl_t ciss_ioctl;
235 static struct cdevsw ciss_cdevsw = {
236 .d_version = D_VERSION,
239 .d_close = ciss_close,
240 .d_ioctl = ciss_ioctl,
245 * This tunable can be set at boot time and controls whether physical devices
246 * that are marked hidden by the firmware should be exposed anyways.
248 static unsigned int ciss_expose_hidden_physical = 0;
249 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
251 static unsigned int ciss_nop_message_heartbeat = 0;
252 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
255 * This tunable can force a particular transport to be used:
258 * 2 : force performant
260 static int ciss_force_transport = 0;
261 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
264 * This tunable can force a particular interrupt delivery method to be used:
269 static int ciss_force_interrupt = 0;
270 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
272 /************************************************************************
273 * CISS adapters amazingly don't have a defined programming interface
274 * value. (One could say some very despairing things about PCI and
275 * people just not getting the general idea.) So we are forced to
276 * stick with matching against subvendor/subdevice, and thus have to
277 * be updated for every new CISS adapter that appears.
279 #define CISS_BOARD_UNKNWON 0
280 #define CISS_BOARD_SA5 1
281 #define CISS_BOARD_SA5B 2
282 #define CISS_BOARD_NOMSI (1<<4)
283 #define CISS_BOARD_SIMPLE (1<<5)
291 } ciss_vendor_data[] = {
292 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
293 "Compaq Smart Array 5300" },
294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
339 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
340 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
341 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
342 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
343 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
344 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
345 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
346 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
347 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
348 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" },
349 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" },
350 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" },
351 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" },
352 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" },
353 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" },
354 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" },
355 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" },
356 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" },
357 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" },
358 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" },
359 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" },
360 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" },
361 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array TBD" },
362 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" },
363 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" },
367 /************************************************************************
368 * Find a match for the device in our list of known adapters.
371 ciss_lookup(device_t dev)
375 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
376 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
377 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
383 /************************************************************************
384 * Match a known CISS adapter.
387 ciss_probe(device_t dev)
391 i = ciss_lookup(dev);
393 device_set_desc(dev, ciss_vendor_data[i].desc);
394 return(BUS_PROBE_DEFAULT);
399 /************************************************************************
400 * Attach the driver to this adapter.
403 ciss_attach(device_t dev)
405 struct ciss_softc *sc;
411 /* print structure/union sizes */
412 debug_struct(ciss_command);
413 debug_struct(ciss_header);
414 debug_union(ciss_device_address);
415 debug_struct(ciss_cdb);
416 debug_struct(ciss_report_cdb);
417 debug_struct(ciss_notify_cdb);
418 debug_struct(ciss_notify);
419 debug_struct(ciss_message_cdb);
420 debug_struct(ciss_error_info_pointer);
421 debug_struct(ciss_error_info);
422 debug_struct(ciss_sg_entry);
423 debug_struct(ciss_config_table);
424 debug_struct(ciss_bmic_cdb);
425 debug_struct(ciss_bmic_id_ldrive);
426 debug_struct(ciss_bmic_id_lstatus);
427 debug_struct(ciss_bmic_id_table);
428 debug_struct(ciss_bmic_id_pdrive);
429 debug_struct(ciss_bmic_blink_pdrive);
430 debug_struct(ciss_bmic_flush_cache);
431 debug_const(CISS_MAX_REQUESTS);
432 debug_const(CISS_MAX_LOGICAL);
433 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
434 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
435 debug_const(CISS_COMMAND_ALLOC_SIZE);
436 debug_const(CISS_COMMAND_SG_LENGTH);
438 debug_type(cciss_pci_info_struct);
439 debug_type(cciss_coalint_struct);
440 debug_type(cciss_coalint_struct);
441 debug_type(NodeName_type);
442 debug_type(NodeName_type);
443 debug_type(Heartbeat_type);
444 debug_type(BusTypes_type);
445 debug_type(FirmwareVer_type);
446 debug_type(DriverVer_type);
447 debug_type(IOCTL_Command_struct);
450 sc = device_get_softc(dev);
452 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
453 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
456 * Do PCI-specific init.
458 if ((error = ciss_init_pci(sc)) != 0)
462 * Initialise driver queues.
465 ciss_initq_notify(sc);
468 * Initialize device sysctls.
470 ciss_init_sysctl(sc);
473 * Initialise command/request pool.
475 if ((error = ciss_init_requests(sc)) != 0)
479 * Get adapter information.
481 if ((error = ciss_identify_adapter(sc)) != 0)
485 * Find all the physical devices.
487 if ((error = ciss_init_physical(sc)) != 0)
491 * Build our private table of logical devices.
493 if ((error = ciss_init_logical(sc)) != 0)
497 * Enable interrupts so that the CAM scan can complete.
499 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
502 * Initialise the CAM interface.
504 if ((error = ciss_cam_init(sc)) != 0)
508 * Start the heartbeat routine and event chain.
513 * Create the control device.
515 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
516 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
517 "ciss%d", device_get_unit(sc->ciss_dev));
518 sc->ciss_dev_t->si_drv1 = sc;
521 * The adapter is running; synchronous commands can now sleep
522 * waiting for an interrupt to signal completion.
524 sc->ciss_flags |= CISS_FLAG_RUNNING;
526 ciss_spawn_notify_thread(sc);
531 /* ciss_free() expects the mutex to be held */
532 mtx_lock(&sc->ciss_mtx);
538 /************************************************************************
539 * Detach the driver from this adapter.
542 ciss_detach(device_t dev)
544 struct ciss_softc *sc = device_get_softc(dev);
548 mtx_lock(&sc->ciss_mtx);
549 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
550 mtx_unlock(&sc->ciss_mtx);
554 /* flush adapter cache */
555 ciss_flush_adapter(sc);
557 /* release all resources. The mutex is released and freed here too. */
563 /************************************************************************
564 * Prepare adapter for system shutdown.
567 ciss_shutdown(device_t dev)
569 struct ciss_softc *sc = device_get_softc(dev);
573 mtx_lock(&sc->ciss_mtx);
574 /* flush adapter cache */
575 ciss_flush_adapter(sc);
577 if (sc->ciss_soft_reset)
579 mtx_unlock(&sc->ciss_mtx);
585 ciss_init_sysctl(struct ciss_softc *sc)
588 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
589 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
590 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
593 /************************************************************************
594 * Perform PCI-specific attachment actions.
597 ciss_init_pci(struct ciss_softc *sc)
599 uintptr_t cbase, csize, cofs;
600 uint32_t method, supported_methods;
601 int error, sqmask, i;
607 * Work out adapter type.
609 i = ciss_lookup(sc->ciss_dev);
611 ciss_printf(sc, "unknown adapter type\n");
615 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
616 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
617 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
618 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
621 * XXX Big hammer, masks/unmasks all possible interrupts. This should
622 * work on all hardware variants. Need to add code to handle the
623 * "controller crashed" interrupt bit that this unmasks.
629 * Allocate register window first (we need this to find the config
633 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
634 if ((sc->ciss_regs_resource =
635 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
636 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
637 ciss_printf(sc, "can't allocate register window\n");
640 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
641 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
644 * Find the BAR holding the config structure. If it's not the one
645 * we already mapped for registers, map it too.
647 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
648 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
649 if ((sc->ciss_cfg_resource =
650 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
651 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
652 ciss_printf(sc, "can't allocate config window\n");
655 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
656 csize = rman_get_end(sc->ciss_cfg_resource) -
657 rman_get_start(sc->ciss_cfg_resource) + 1;
659 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
660 csize = rman_get_end(sc->ciss_regs_resource) -
661 rman_get_start(sc->ciss_regs_resource) + 1;
663 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
666 * Use the base/size/offset values we just calculated to
667 * sanity-check the config structure. If it's OK, point to it.
669 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
670 ciss_printf(sc, "config table outside window\n");
673 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
674 debug(1, "config struct at %p", sc->ciss_cfg);
677 * Calculate the number of request structures/commands we are
678 * going to provide for this adapter.
680 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
683 * Validate the config structure. If we supported other transport
684 * methods, we could select amongst them at this point in time.
686 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
687 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
688 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
689 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
694 * Select the mode of operation, prefer Performant.
696 if (!(sc->ciss_cfg->supported_methods &
697 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
698 ciss_printf(sc, "No supported transport layers: 0x%x\n",
699 sc->ciss_cfg->supported_methods);
702 switch (ciss_force_transport) {
704 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
707 supported_methods = CISS_TRANSPORT_METHOD_PERF;
711 * Override the capabilities of the BOARD and specify SIMPLE
714 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
715 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
717 supported_methods = sc->ciss_cfg->supported_methods;
722 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
723 method = CISS_TRANSPORT_METHOD_PERF;
724 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
725 sc->ciss_cfg->transport_offset);
726 if (ciss_init_perf(sc)) {
727 supported_methods &= ~method;
730 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
731 method = CISS_TRANSPORT_METHOD_SIMPLE;
733 ciss_printf(sc, "No supported transport methods: 0x%x\n",
734 sc->ciss_cfg->supported_methods);
739 * Tell it we're using the low 4GB of RAM. Set the default interrupt
740 * coalescing options.
742 sc->ciss_cfg->requested_method = method;
743 sc->ciss_cfg->command_physlimit = 0;
744 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
745 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
748 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
751 if (ciss_update_config(sc)) {
752 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
753 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
756 if ((sc->ciss_cfg->active_method & method) == 0) {
757 supported_methods &= ~method;
758 if (supported_methods == 0) {
759 ciss_printf(sc, "adapter refuses to go into available transports "
760 "mode (0x%x, 0x%x)\n", supported_methods,
761 sc->ciss_cfg->active_method);
768 * Wait for the adapter to come ready.
770 if ((error = ciss_wait_adapter(sc)) != 0)
773 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
774 * interrupts have a rid of 0, this will be overridden if MSIX is used.
776 sc->ciss_irq_rid[0] = 0;
777 if (method == CISS_TRANSPORT_METHOD_PERF) {
778 ciss_printf(sc, "PERFORMANT Transport\n");
779 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
780 intr = ciss_perf_msi_intr;
782 intr = ciss_perf_intr;
784 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
785 * Unfortunately, there is no good way to know if this is a SAS
786 * controller. Hopefully enabling this bit universally will work OK.
787 * It seems to work fine for SA6i controllers.
789 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
792 ciss_printf(sc, "SIMPLE Transport\n");
793 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
794 if (ciss_force_interrupt == 2)
795 /* If this fails, we automatically revert to INTx */
797 sc->ciss_perf = NULL;
799 sc->ciss_interrupt_mask = sqmask;
803 * Turn off interrupts before we go routing anything.
805 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
808 * Allocate and set up our interrupt.
810 if ((sc->ciss_irq_resource =
811 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
812 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
813 ciss_printf(sc, "can't allocate interrupt\n");
817 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
818 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
820 ciss_printf(sc, "can't set up interrupt\n");
825 * Allocate the parent bus DMA tag appropriate for our PCI
828 * Note that "simple" adapters can only address within a 32-bit
831 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
832 1, 0, /* alignment, boundary */
833 BUS_SPACE_MAXADDR, /* lowaddr */
834 BUS_SPACE_MAXADDR, /* highaddr */
835 NULL, NULL, /* filter, filterarg */
836 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
837 BUS_SPACE_UNRESTRICTED, /* nsegments */
838 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
840 NULL, NULL, /* lockfunc, lockarg */
841 &sc->ciss_parent_dmat)) {
842 ciss_printf(sc, "can't allocate parent DMA tag\n");
847 * Create DMA tag for mapping buffers into adapter-addressable
850 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
851 1, 0, /* alignment, boundary */
852 BUS_SPACE_MAXADDR, /* lowaddr */
853 BUS_SPACE_MAXADDR, /* highaddr */
854 NULL, NULL, /* filter, filterarg */
855 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */
856 CISS_MAX_SG_ELEMENTS, /* nsegments */
857 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
858 BUS_DMA_ALLOCNOW, /* flags */
859 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
860 &sc->ciss_buffer_dmat)) {
861 ciss_printf(sc, "can't allocate buffer DMA tag\n");
867 /************************************************************************
868 * Setup MSI/MSIX operation (Performant only)
869 * Four interrupts are available, but we only use 1 right now. If MSI-X
870 * isn't avaialble, try using MSI instead.
873 ciss_setup_msix(struct ciss_softc *sc)
877 /* Weed out devices that don't actually support MSI */
878 i = ciss_lookup(sc->ciss_dev);
879 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
883 * Only need to use the minimum number of MSI vectors, as the driver
884 * doesn't support directed MSIX interrupts.
886 val = pci_msix_count(sc->ciss_dev);
887 if (val < CISS_MSI_COUNT) {
888 val = pci_msi_count(sc->ciss_dev);
889 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
890 if (val < CISS_MSI_COUNT)
893 val = MIN(val, CISS_MSI_COUNT);
894 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
895 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
901 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
902 (val != 1) ? "s" : "");
904 for (i = 0; i < val; i++)
905 sc->ciss_irq_rid[i] = i + 1;
911 /************************************************************************
912 * Setup the Performant structures.
915 ciss_init_perf(struct ciss_softc *sc)
917 struct ciss_perf_config *pc = sc->ciss_perf;
921 * Create the DMA tag for the reply queue.
923 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
924 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
925 1, 0, /* alignment, boundary */
926 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
927 BUS_SPACE_MAXADDR, /* highaddr */
928 NULL, NULL, /* filter, filterarg */
929 reply_size, 1, /* maxsize, nsegments */
930 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
932 NULL, NULL, /* lockfunc, lockarg */
933 &sc->ciss_reply_dmat)) {
934 ciss_printf(sc, "can't allocate reply DMA tag\n");
938 * Allocate memory and make it available for DMA.
940 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
941 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
942 ciss_printf(sc, "can't allocate reply memory\n");
945 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
946 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
947 bzero(sc->ciss_reply, reply_size);
949 sc->ciss_cycle = 0x1;
953 * Preload the fetch table with common command sizes. This allows the
954 * hardware to not waste bus cycles for typical i/o commands, but also not
955 * tax the driver to be too exact in choosing sizes. The table is optimized
956 * for page-aligned i/o's, but since most i/o comes from the various pagers,
957 * it's a reasonable assumption to make.
959 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
960 pc->fetch_count[CISS_SG_FETCH_1] =
961 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
962 pc->fetch_count[CISS_SG_FETCH_2] =
963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
964 pc->fetch_count[CISS_SG_FETCH_4] =
965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
966 pc->fetch_count[CISS_SG_FETCH_8] =
967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
968 pc->fetch_count[CISS_SG_FETCH_16] =
969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
970 pc->fetch_count[CISS_SG_FETCH_32] =
971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
972 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
974 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
975 pc->rq_count = 1; /* XXX Hardcode for a single queue */
978 pc->rq[0].rq_addr_hi = 0x0;
979 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
984 /************************************************************************
985 * Wait for the adapter to come ready.
988 ciss_wait_adapter(struct ciss_softc *sc)
995 * Wait for the adapter to come ready.
997 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
998 ciss_printf(sc, "waiting for adapter to come ready...\n");
999 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
1000 DELAY(1000000); /* one second */
1002 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
1010 /************************************************************************
1011 * Flush the adapter cache.
1014 ciss_flush_adapter(struct ciss_softc *sc)
1016 struct ciss_request *cr;
1017 struct ciss_bmic_flush_cache *cbfc;
1018 int error, command_status;
1026 * Build a BMIC request to flush the cache. We don't disable
1027 * it, as we may be going to do more I/O (eg. we are emulating
1028 * the Synchronise Cache command).
1030 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1034 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1035 (void **)&cbfc, sizeof(*cbfc))) != 0)
1039 * Submit the request and wait for it to complete.
1041 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1042 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1049 ciss_report_request(cr, &command_status, NULL);
1050 switch(command_status) {
1051 case CISS_CMD_STATUS_SUCCESS:
1054 ciss_printf(sc, "error flushing cache (%s)\n",
1055 ciss_name_command_status(command_status));
1062 free(cbfc, CISS_MALLOC_CLASS);
1064 ciss_release_request(cr);
1069 ciss_soft_reset(struct ciss_softc *sc)
1071 struct ciss_request *cr = NULL;
1072 struct ciss_command *cc;
1075 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1076 /* only reset proxy controllers */
1077 if (sc->ciss_controllers[i].physical.bus == 0)
1080 if ((error = ciss_get_request(sc, &cr)) != 0)
1083 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1088 cc->header.address = sc->ciss_controllers[i];
1090 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1093 ciss_release_request(cr);
1097 ciss_printf(sc, "error resetting controller (%d)\n", error);
1100 ciss_release_request(cr);
1103 /************************************************************************
1104 * Allocate memory for the adapter command structures, initialise
1105 * the request structures.
1107 * Note that the entire set of commands are allocated in a single
1111 ciss_init_requests(struct ciss_softc *sc)
1113 struct ciss_request *cr;
1119 ciss_printf(sc, "using %d of %d available commands\n",
1120 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1123 * Create the DMA tag for commands.
1125 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1126 32, 0, /* alignment, boundary */
1127 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1128 BUS_SPACE_MAXADDR, /* highaddr */
1129 NULL, NULL, /* filter, filterarg */
1130 CISS_COMMAND_ALLOC_SIZE *
1131 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1132 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1134 NULL, NULL, /* lockfunc, lockarg */
1135 &sc->ciss_command_dmat)) {
1136 ciss_printf(sc, "can't allocate command DMA tag\n");
1140 * Allocate memory and make it available for DMA.
1142 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1143 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1144 ciss_printf(sc, "can't allocate command memory\n");
1147 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1148 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1149 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1150 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1153 * Set up the request and command structures, push requests onto
1156 for (i = 1; i < sc->ciss_max_requests; i++) {
1157 cr = &sc->ciss_request[i];
1160 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1161 CISS_COMMAND_ALLOC_SIZE * i);
1162 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1163 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1164 ciss_enqueue_free(cr);
1170 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1175 *addr = segs[0].ds_addr;
1178 /************************************************************************
1179 * Identify the adapter, print some information about it.
1182 ciss_identify_adapter(struct ciss_softc *sc)
1184 struct ciss_request *cr;
1185 int error, command_status;
1192 * Get a request, allocate storage for the adapter data.
1194 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1195 (void **)&sc->ciss_id,
1196 sizeof(*sc->ciss_id))) != 0)
1200 * Submit the request and wait for it to complete.
1202 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1203 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1210 ciss_report_request(cr, &command_status, NULL);
1211 switch(command_status) {
1212 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1214 case CISS_CMD_STATUS_DATA_UNDERRUN:
1215 case CISS_CMD_STATUS_DATA_OVERRUN:
1216 ciss_printf(sc, "data over/underrun reading adapter information\n");
1218 ciss_printf(sc, "error reading adapter information (%s)\n",
1219 ciss_name_command_status(command_status));
1224 /* sanity-check reply */
1225 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) {
1226 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1232 /* XXX later revisions may not need this */
1233 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1236 /* XXX only really required for old 5300 adapters? */
1237 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1240 * Earlier controller specs do not contain these config
1241 * entries, so assume that a 0 means its old and assign
1242 * these values to the defaults that were established
1243 * when this driver was developed for them
1245 if (sc->ciss_cfg->max_logical_supported == 0)
1246 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1247 if (sc->ciss_cfg->max_physical_supported == 0)
1248 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1249 /* print information */
1251 ciss_printf(sc, " %d logical drive%s configured\n",
1252 sc->ciss_id->configured_logical_drives,
1253 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1254 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1255 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count);
1257 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1258 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1259 ciss_printf(sc, " supported I/O methods 0x%b\n",
1260 sc->ciss_cfg->supported_methods,
1261 "\20\1READY\2simple\3performant\4MEMQ\n");
1262 ciss_printf(sc, " active I/O method 0x%b\n",
1263 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1264 ciss_printf(sc, " 4G page base 0x%08x\n",
1265 sc->ciss_cfg->command_physlimit);
1266 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1267 sc->ciss_cfg->interrupt_coalesce_delay);
1268 ciss_printf(sc, " interrupt coalesce count %d\n",
1269 sc->ciss_cfg->interrupt_coalesce_count);
1270 ciss_printf(sc, " max outstanding commands %d\n",
1271 sc->ciss_cfg->max_outstanding_commands);
1272 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1273 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1274 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1275 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1276 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1277 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1278 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1279 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ?
1280 "Available" : "Unavailable");
1281 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ?
1282 "Enabled" : "Disabled");
1287 if (sc->ciss_id != NULL) {
1288 free(sc->ciss_id, CISS_MALLOC_CLASS);
1293 ciss_release_request(cr);
1297 /************************************************************************
1298 * Helper routine for generating a list of logical and physical luns.
1300 static struct ciss_lun_report *
1301 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1303 struct ciss_request *cr;
1304 struct ciss_command *cc;
1305 struct ciss_report_cdb *crc;
1306 struct ciss_lun_report *cll;
1317 * Get a request, allocate storage for the address list.
1319 if ((error = ciss_get_request(sc, &cr)) != 0)
1321 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1322 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1323 ciss_printf(sc, "can't allocate memory for lun report\n");
1329 * Build the Report Logical/Physical LUNs command.
1333 cr->cr_length = report_size;
1334 cr->cr_flags = CISS_REQ_DATAIN;
1336 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1337 cc->header.address.physical.bus = 0;
1338 cc->header.address.physical.target = 0;
1339 cc->cdb.cdb_length = sizeof(*crc);
1340 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1341 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1342 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1343 cc->cdb.timeout = 30; /* XXX better suggestions? */
1345 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1346 bzero(crc, sizeof(*crc));
1347 crc->opcode = opcode;
1348 crc->length = htonl(report_size); /* big-endian field */
1349 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1352 * Submit the request and wait for it to complete. (timeout
1353 * here should be much greater than above)
1355 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1356 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1361 * Check response. Note that data over/underrun is OK.
1363 ciss_report_request(cr, &command_status, NULL);
1364 switch(command_status) {
1365 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1366 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1368 case CISS_CMD_STATUS_DATA_OVERRUN:
1369 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1370 sc->ciss_cfg->max_logical_supported);
1373 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1374 ciss_name_command_status(command_status));
1378 ciss_release_request(cr);
1383 ciss_release_request(cr);
1384 if (error && cll != NULL) {
1385 free(cll, CISS_MALLOC_CLASS);
1391 /************************************************************************
1392 * Find logical drives on the adapter.
1395 ciss_init_logical(struct ciss_softc *sc)
1397 struct ciss_lun_report *cll;
1398 int error = 0, i, j;
1403 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1404 sc->ciss_cfg->max_logical_supported);
1410 /* sanity-check reply */
1411 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1412 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1413 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1414 ndrives, sc->ciss_cfg->max_logical_supported);
1420 * Save logical drive information.
1423 ciss_printf(sc, "%d logical drive%s\n",
1424 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1428 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1429 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1430 if (sc->ciss_logical == NULL) {
1435 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1436 sc->ciss_logical[i] =
1437 malloc(sc->ciss_cfg->max_logical_supported *
1438 sizeof(struct ciss_ldrive),
1439 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1440 if (sc->ciss_logical[i] == NULL) {
1445 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1446 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1450 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1452 struct ciss_ldrive *ld;
1455 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1456 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1457 ld = &sc->ciss_logical[bus][target];
1459 ld->cl_address = cll->lun[i];
1460 ld->cl_controller = &sc->ciss_controllers[bus];
1461 if (ciss_identify_logical(sc, ld) != 0)
1464 * If the drive has had media exchanged, we should bring it online.
1466 if (ld->cl_lstatus->media_exchanged)
1467 ciss_accept_media(sc, ld);
1474 free(cll, CISS_MALLOC_CLASS);
1479 ciss_init_physical(struct ciss_softc *sc)
1481 struct ciss_lun_report *cll;
1491 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1492 sc->ciss_cfg->max_physical_supported);
1498 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1501 ciss_printf(sc, "%d physical device%s\n",
1502 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1506 * Figure out the bus mapping.
1507 * Logical buses include both the local logical bus for local arrays and
1508 * proxy buses for remote arrays. Physical buses are numbered by the
1509 * controller and represent physical buses that hold physical devices.
1510 * We shift these bus numbers so that everything fits into a single flat
1511 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1512 * numbers, and the physical bus numbers are shifted to be above that.
1513 * This results in the various driver arrays being indexed as follows:
1515 * ciss_controllers[] - indexed by logical bus
1516 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1517 * being shifted by 32.
1518 * ciss_logical[][] - indexed by logical bus
1519 * ciss_physical[][] - indexed by physical bus
1521 * XXX This is getting more and more hackish. CISS really doesn't play
1522 * well with a standard SCSI model; devices are addressed via magic
1523 * cookies, not via b/t/l addresses. Since there is no way to store
1524 * the cookie in the CAM device object, we have to keep these lookup
1525 * tables handy so that the devices can be found quickly at the cost
1526 * of wasting memory and having a convoluted lookup scheme. This
1527 * driver should probably be converted to block interface.
1530 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1531 * controller. A proxy controller is another physical controller
1532 * behind the primary PCI controller. We need to know about this
1533 * so that BMIC commands can be properly targeted. There can be
1534 * proxy controllers attached to a single PCI controller, so
1535 * find the highest numbered one so the array can be properly
1538 sc->ciss_max_logical_bus = 1;
1539 for (i = 0; i < nphys; i++) {
1540 if (cll->lun[i].physical.extra_address == 0) {
1541 bus = cll->lun[i].physical.bus;
1542 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1544 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1545 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1549 sc->ciss_controllers =
1550 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1551 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1553 if (sc->ciss_controllers == NULL) {
1554 ciss_printf(sc, "Could not allocate memory for controller map\n");
1559 /* setup a map of controller addresses */
1560 for (i = 0; i < nphys; i++) {
1561 if (cll->lun[i].physical.extra_address == 0) {
1562 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1567 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1568 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1569 if (sc->ciss_physical == NULL) {
1570 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1575 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1576 sc->ciss_physical[i] =
1577 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1578 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1579 if (sc->ciss_physical[i] == NULL) {
1580 ciss_printf(sc, "Could not allocate memory for target map\n");
1586 ciss_filter_physical(sc, cll);
1590 free(cll, CISS_MALLOC_CLASS);
1596 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1602 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1603 for (i = 0; i < nphys; i++) {
1604 if (cll->lun[i].physical.extra_address == 0)
1608 * Filter out devices that we don't want. Level 3 LUNs could
1609 * probably be supported, but the docs don't give enough of a
1612 * The mode field of the physical address is likely set to have
1613 * hard disks masked out. Honor it unless the user has overridden
1614 * us with the tunable. We also munge the inquiry data for these
1615 * disks so that they only show up as passthrough devices. Keeping
1616 * them visible in this fashion is useful for doing things like
1617 * flashing firmware.
1619 ea = cll->lun[i].physical.extra_address;
1620 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1621 (CISS_EXTRA_MODE2(ea) == 0x3))
1623 if ((ciss_expose_hidden_physical == 0) &&
1624 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1628 * Note: CISS firmware numbers physical busses starting at '1', not
1629 * '0'. This numbering is internal to the firmware and is only
1630 * used as a hint here.
1632 bus = CISS_EXTRA_BUS2(ea) - 1;
1633 target = CISS_EXTRA_TARGET2(ea);
1634 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1635 sc->ciss_physical[bus][target].cp_online = 1;
1642 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1644 struct ciss_request *cr;
1645 struct ciss_command *cc;
1646 struct scsi_inquiry *inq;
1652 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1654 if ((error = ciss_get_request(sc, &cr)) != 0)
1658 cr->cr_data = &ld->cl_geometry;
1659 cr->cr_length = sizeof(ld->cl_geometry);
1660 cr->cr_flags = CISS_REQ_DATAIN;
1662 cc->header.address = ld->cl_address;
1663 cc->cdb.cdb_length = 6;
1664 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1665 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1666 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1667 cc->cdb.timeout = 30;
1669 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1670 inq->opcode = INQUIRY;
1671 inq->byte2 = SI_EVPD;
1672 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1673 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length);
1675 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1676 ciss_printf(sc, "error getting geometry (%d)\n", error);
1680 ciss_report_request(cr, &command_status, NULL);
1681 switch(command_status) {
1682 case CISS_CMD_STATUS_SUCCESS:
1683 case CISS_CMD_STATUS_DATA_UNDERRUN:
1685 case CISS_CMD_STATUS_DATA_OVERRUN:
1686 ciss_printf(sc, "WARNING: Data overrun\n");
1689 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1690 ciss_name_command_status(command_status));
1696 ciss_release_request(cr);
1699 /************************************************************************
1700 * Identify a logical drive, initialise state related to it.
1703 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1705 struct ciss_request *cr;
1706 struct ciss_command *cc;
1707 struct ciss_bmic_cdb *cbc;
1708 int error, command_status;
1715 * Build a BMIC request to fetch the drive ID.
1717 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1718 (void **)&ld->cl_ldrive,
1719 sizeof(*ld->cl_ldrive))) != 0)
1722 cc->header.address = *ld->cl_controller; /* target controller */
1723 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1724 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1727 * Submit the request and wait for it to complete.
1729 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1730 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1737 ciss_report_request(cr, &command_status, NULL);
1738 switch(command_status) {
1739 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1741 case CISS_CMD_STATUS_DATA_UNDERRUN:
1742 case CISS_CMD_STATUS_DATA_OVERRUN:
1743 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1745 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1746 ciss_name_command_status(command_status));
1750 ciss_release_request(cr);
1754 * Build a CISS BMIC command to get the logical drive status.
1756 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1760 * Get the logical drive geometry.
1762 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1766 * Print the drive's basic characteristics.
1769 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1770 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1771 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1772 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1773 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1774 ld->cl_ldrive->block_size));
1776 ciss_print_ldrive(sc, ld);
1780 /* make the drive not-exist */
1781 ld->cl_status = CISS_LD_NONEXISTENT;
1782 if (ld->cl_ldrive != NULL) {
1783 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1784 ld->cl_ldrive = NULL;
1786 if (ld->cl_lstatus != NULL) {
1787 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1788 ld->cl_lstatus = NULL;
1792 ciss_release_request(cr);
1797 /************************************************************************
1798 * Get status for a logical drive.
1800 * XXX should we also do this in response to Test Unit Ready?
1803 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1805 struct ciss_request *cr;
1806 struct ciss_command *cc;
1807 struct ciss_bmic_cdb *cbc;
1808 int error, command_status;
1811 * Build a CISS BMIC command to get the logical drive status.
1813 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1814 (void **)&ld->cl_lstatus,
1815 sizeof(*ld->cl_lstatus))) != 0)
1818 cc->header.address = *ld->cl_controller; /* target controller */
1819 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1820 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1823 * Submit the request and wait for it to complete.
1825 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1826 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1833 ciss_report_request(cr, &command_status, NULL);
1834 switch(command_status) {
1835 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1837 case CISS_CMD_STATUS_DATA_UNDERRUN:
1838 case CISS_CMD_STATUS_DATA_OVERRUN:
1839 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1841 ciss_printf(sc, "error reading logical drive status (%s)\n",
1842 ciss_name_command_status(command_status));
1848 * Set the drive's summary status based on the returned status.
1850 * XXX testing shows that a failed JBOD drive comes back at next
1851 * boot in "queued for expansion" mode. WTF?
1853 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1857 ciss_release_request(cr);
1861 /************************************************************************
1862 * Notify the adapter of a config update.
1865 ciss_update_config(struct ciss_softc *sc)
1871 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1872 for (i = 0; i < 1000; i++) {
1873 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1874 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1882 /************************************************************************
1883 * Accept new media into a logical drive.
1885 * XXX The drive has previously been offline; it would be good if we
1886 * could make sure it's not open right now.
1889 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1891 struct ciss_request *cr;
1892 struct ciss_command *cc;
1893 struct ciss_bmic_cdb *cbc;
1895 int error = 0, ldrive;
1897 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1899 debug(0, "bringing logical drive %d back online", ldrive);
1902 * Build a CISS BMIC command to bring the drive back online.
1904 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1908 cc->header.address = *ld->cl_controller; /* target controller */
1909 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1910 cbc->log_drive = ldrive;
1913 * Submit the request and wait for it to complete.
1915 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1916 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1923 ciss_report_request(cr, &command_status, NULL);
1924 switch(command_status) {
1925 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1926 /* we should get a logical drive status changed event here */
1929 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1930 ciss_name_command_status(command_status));
1936 ciss_release_request(cr);
1940 /************************************************************************
1941 * Release adapter resources.
1944 ciss_free(struct ciss_softc *sc)
1946 struct ciss_request *cr;
1951 /* we're going away */
1952 sc->ciss_flags |= CISS_FLAG_ABORTING;
1954 /* terminate the periodic heartbeat routine */
1955 callout_stop(&sc->ciss_periodic);
1957 /* cancel the Event Notify chain */
1958 ciss_notify_abort(sc);
1960 ciss_kill_notify_thread(sc);
1962 /* disconnect from CAM */
1963 if (sc->ciss_cam_sim) {
1964 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1965 if (sc->ciss_cam_sim[i]) {
1966 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1967 cam_sim_free(sc->ciss_cam_sim[i], 0);
1970 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1971 CISS_PHYSICAL_BASE; i++) {
1972 if (sc->ciss_cam_sim[i]) {
1973 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1974 cam_sim_free(sc->ciss_cam_sim[i], 0);
1977 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1979 if (sc->ciss_cam_devq)
1980 cam_simq_free(sc->ciss_cam_devq);
1982 /* remove the control device */
1983 mtx_unlock(&sc->ciss_mtx);
1984 if (sc->ciss_dev_t != NULL)
1985 destroy_dev(sc->ciss_dev_t);
1987 /* Final cleanup of the callout. */
1988 callout_drain(&sc->ciss_periodic);
1989 mtx_destroy(&sc->ciss_mtx);
1991 /* free the controller data */
1992 if (sc->ciss_id != NULL)
1993 free(sc->ciss_id, CISS_MALLOC_CLASS);
1995 /* release I/O resources */
1996 if (sc->ciss_regs_resource != NULL)
1997 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1998 sc->ciss_regs_rid, sc->ciss_regs_resource);
1999 if (sc->ciss_cfg_resource != NULL)
2000 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
2001 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
2002 if (sc->ciss_intr != NULL)
2003 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
2004 if (sc->ciss_irq_resource != NULL)
2005 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
2006 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
2008 pci_release_msi(sc->ciss_dev);
2010 while ((cr = ciss_dequeue_free(sc)) != NULL)
2011 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
2012 if (sc->ciss_buffer_dmat)
2013 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
2015 /* destroy command memory and DMA tag */
2016 if (sc->ciss_command != NULL) {
2017 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
2018 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2020 if (sc->ciss_command_dmat)
2021 bus_dma_tag_destroy(sc->ciss_command_dmat);
2023 if (sc->ciss_reply) {
2024 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2025 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2027 if (sc->ciss_reply_dmat)
2028 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2030 /* destroy DMA tags */
2031 if (sc->ciss_parent_dmat)
2032 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2033 if (sc->ciss_logical) {
2034 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2035 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2036 if (sc->ciss_logical[i][j].cl_ldrive)
2037 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2038 if (sc->ciss_logical[i][j].cl_lstatus)
2039 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2041 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2043 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2046 if (sc->ciss_physical) {
2047 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2048 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2049 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2052 if (sc->ciss_controllers)
2053 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2057 /************************************************************************
2058 * Give a command to the adapter.
2060 * Note that this uses the simple transport layer directly. If we
2061 * want to add support for other layers, we'll need a switch of some
2064 * Note that the simple transport layer has no way of refusing a
2065 * command; we only have as many request structures as the adapter
2066 * supports commands, so we don't have to check (this presumes that
2067 * the adapter can handle commands as fast as we throw them at it).
2070 ciss_start(struct ciss_request *cr)
2072 struct ciss_command *cc; /* XXX debugging only */
2076 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2079 * Map the request's data.
2081 if ((error = ciss_map_request(cr)))
2085 ciss_print_request(cr);
2091 /************************************************************************
2092 * Fetch completed request(s) from the adapter, queue them for
2093 * completion handling.
2095 * Note that this uses the simple transport layer directly. If we
2096 * want to add support for other layers, we'll need a switch of some
2099 * Note that the simple transport mechanism does not require any
2100 * reentrancy protection; the OPQ read is atomic. If there is a
2101 * chance of a race with something else that might move the request
2102 * off the busy list, then we will have to lock against that
2103 * (eg. timeouts, etc.)
2106 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2108 struct ciss_request *cr;
2109 struct ciss_command *cc;
2110 u_int32_t tag, index;
2115 * Loop quickly taking requests from the adapter and moving them
2116 * to the completed queue.
2120 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2121 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2124 debug(2, "completed command %d%s", index,
2125 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2126 if (index >= sc->ciss_max_requests) {
2127 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2130 cr = &(sc->ciss_request[index]);
2132 cc->header.host_tag = tag; /* not updated by adapter */
2133 ciss_enqueue_complete(cr, qh);
2139 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2141 struct ciss_request *cr;
2142 struct ciss_command *cc;
2143 u_int32_t tag, index;
2148 * Loop quickly taking requests from the adapter and moving them
2149 * to the completed queue.
2152 tag = sc->ciss_reply[sc->ciss_rqidx];
2153 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2156 debug(2, "completed command %d%s\n", index,
2157 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2158 if (index < sc->ciss_max_requests) {
2159 cr = &(sc->ciss_request[index]);
2161 cc->header.host_tag = tag; /* not updated by adapter */
2162 ciss_enqueue_complete(cr, qh);
2164 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2166 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2168 sc->ciss_cycle ^= 1;
2174 /************************************************************************
2175 * Take an interrupt from the adapter.
2178 ciss_intr(void *arg)
2181 struct ciss_softc *sc = (struct ciss_softc *)arg;
2184 * The only interrupt we recognise indicates that there are
2185 * entries in the outbound post queue.
2189 mtx_lock(&sc->ciss_mtx);
2190 ciss_complete(sc, &qh);
2191 mtx_unlock(&sc->ciss_mtx);
2195 ciss_perf_intr(void *arg)
2197 struct ciss_softc *sc = (struct ciss_softc *)arg;
2199 /* Clear the interrupt and flush the bridges. Docs say that the flush
2200 * needs to be done twice, which doesn't seem right.
2202 CISS_TL_PERF_CLEAR_INT(sc);
2203 CISS_TL_PERF_FLUSH_INT(sc);
2205 ciss_perf_msi_intr(sc);
2209 ciss_perf_msi_intr(void *arg)
2212 struct ciss_softc *sc = (struct ciss_softc *)arg;
2215 ciss_perf_done(sc, &qh);
2216 mtx_lock(&sc->ciss_mtx);
2217 ciss_complete(sc, &qh);
2218 mtx_unlock(&sc->ciss_mtx);
2222 /************************************************************************
2223 * Process completed requests.
2225 * Requests can be completed in three fashions:
2227 * - by invoking a callback function (cr_complete is non-null)
2228 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2229 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2232 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2234 struct ciss_request *cr;
2239 * Loop taking requests off the completed queue and performing
2240 * completion processing on them.
2243 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2245 ciss_unmap_request(cr);
2247 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2248 ciss_printf(sc, "WARNING: completing non-busy request\n");
2249 cr->cr_flags &= ~CISS_REQ_BUSY;
2252 * If the request has a callback, invoke it.
2254 if (cr->cr_complete != NULL) {
2255 cr->cr_complete(cr);
2260 * If someone is sleeping on this request, wake them up.
2262 if (cr->cr_flags & CISS_REQ_SLEEP) {
2263 cr->cr_flags &= ~CISS_REQ_SLEEP;
2269 * If someone is polling this request for completion, signal.
2271 if (cr->cr_flags & CISS_REQ_POLL) {
2272 cr->cr_flags &= ~CISS_REQ_POLL;
2277 * Give up and throw the request back on the free queue. This
2278 * should never happen; resources will probably be lost.
2280 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2281 ciss_enqueue_free(cr);
2285 /************************************************************************
2286 * Report on the completion status of a request, and pass back SCSI
2287 * and command status values.
2290 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2292 struct ciss_command *cc;
2293 struct ciss_error_info *ce;
2298 ce = (struct ciss_error_info *)&(cc->sg[0]);
2301 * We don't consider data under/overrun an error for the Report
2302 * Logical/Physical LUNs commands.
2304 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2305 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2306 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2307 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2308 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2309 (cc->cdb.cdb[0] == INQUIRY))) {
2310 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2311 debug(2, "ignoring irrelevant under/overrun error");
2315 * Check the command's error bit, if clear, there's no status and
2318 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2319 if (scsi_status != NULL)
2320 *scsi_status = SCSI_STATUS_OK;
2321 if (command_status != NULL)
2322 *command_status = CISS_CMD_STATUS_SUCCESS;
2325 if (command_status != NULL)
2326 *command_status = ce->command_status;
2327 if (scsi_status != NULL) {
2328 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2329 *scsi_status = ce->scsi_status;
2335 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2336 ce->command_status, ciss_name_command_status(ce->command_status),
2338 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2339 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2340 ce->additional_error_info.invalid_command.offense_size,
2341 ce->additional_error_info.invalid_command.offense_offset,
2342 ce->additional_error_info.invalid_command.offense_value,
2347 ciss_print_request(cr);
2352 /************************************************************************
2353 * Issue a request and don't return until it's completed.
2355 * Depending on adapter status, we may poll or sleep waiting for
2359 ciss_synch_request(struct ciss_request *cr, int timeout)
2361 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2362 return(ciss_wait_request(cr, timeout));
2364 return(ciss_poll_request(cr, timeout));
2368 /************************************************************************
2369 * Issue a request and poll for completion.
2371 * Timeout in milliseconds.
2374 ciss_poll_request(struct ciss_request *cr, int timeout)
2377 struct ciss_softc *sc;
2384 cr->cr_flags |= CISS_REQ_POLL;
2385 if ((error = ciss_start(cr)) != 0)
2390 ciss_perf_done(sc, &qh);
2393 ciss_complete(sc, &qh);
2394 if (!(cr->cr_flags & CISS_REQ_POLL))
2397 } while (timeout-- >= 0);
2398 return(EWOULDBLOCK);
2401 /************************************************************************
2402 * Issue a request and sleep waiting for completion.
2404 * Timeout in milliseconds. Note that a spurious wakeup will reset
2408 ciss_wait_request(struct ciss_request *cr, int timeout)
2414 cr->cr_flags |= CISS_REQ_SLEEP;
2415 if ((error = ciss_start(cr)) != 0)
2418 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2419 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ",
2420 SBT_1MS * timeout, 0, 0);
2426 /************************************************************************
2427 * Abort a request. Note that a potential exists here to race the
2428 * request being completed; the caller must deal with this.
2431 ciss_abort_request(struct ciss_request *ar)
2433 struct ciss_request *cr;
2434 struct ciss_command *cc;
2435 struct ciss_message_cdb *cmc;
2441 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2444 /* build the abort command */
2446 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2447 cc->header.address.physical.target = 0;
2448 cc->header.address.physical.bus = 0;
2449 cc->cdb.cdb_length = sizeof(*cmc);
2450 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2451 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2452 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2453 cc->cdb.timeout = 30;
2455 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2456 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2457 cmc->type = CISS_MESSAGE_ABORT_TASK;
2458 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2461 * Send the request and wait for a response. If we believe we
2462 * aborted the request OK, clear the flag that indicates it's
2465 error = ciss_synch_request(cr, 35 * 1000);
2467 error = ciss_report_request(cr, NULL, NULL);
2468 ciss_release_request(cr);
2475 /************************************************************************
2476 * Fetch and initialise a request
2479 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2481 struct ciss_request *cr;
2486 * Get a request and clean it up.
2488 if ((cr = ciss_dequeue_free(sc)) == NULL)
2493 cr->cr_complete = NULL;
2494 cr->cr_private = NULL;
2495 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2497 ciss_preen_command(cr);
2503 ciss_preen_command(struct ciss_request *cr)
2505 struct ciss_command *cc;
2509 * Clean up the command structure.
2511 * Note that we set up the error_info structure here, since the
2512 * length can be overwritten by any command.
2515 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2516 cc->header.sg_total = 0;
2517 cc->header.host_tag = cr->cr_tag << 2;
2518 cc->header.host_tag_zeroes = 0;
2519 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command));
2520 cmdphys = cr->cr_ccphys;
2521 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2522 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2525 /************************************************************************
2526 * Release a request to the free list.
2529 ciss_release_request(struct ciss_request *cr)
2531 struct ciss_softc *sc;
2537 /* release the request to the free queue */
2538 ciss_requeue_free(cr);
2541 /************************************************************************
2542 * Allocate a request that will be used to send a BMIC command. Do some
2543 * of the common setup here to avoid duplicating it everywhere else.
2546 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2547 int opcode, void **bufp, size_t bufsize)
2549 struct ciss_request *cr;
2550 struct ciss_command *cc;
2551 struct ciss_bmic_cdb *cbc;
2564 if ((error = ciss_get_request(sc, &cr)) != 0)
2568 * Allocate data storage if requested, determine the data direction.
2571 if ((bufsize > 0) && (bufp != NULL)) {
2572 if (*bufp == NULL) {
2573 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2579 dataout = 1; /* we are given a buffer, so we are writing */
2584 * Build a CISS BMIC command to get the logical drive ID.
2587 cr->cr_length = bufsize;
2589 cr->cr_flags = CISS_REQ_DATAIN;
2592 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2593 cc->header.address.physical.bus = 0;
2594 cc->header.address.physical.target = 0;
2595 cc->cdb.cdb_length = sizeof(*cbc);
2596 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2597 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2598 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2599 cc->cdb.timeout = 0;
2601 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2602 bzero(cbc, sizeof(*cbc));
2603 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2604 cbc->bmic_opcode = opcode;
2605 cbc->size = htons((u_int16_t)bufsize);
2610 ciss_release_request(cr);
2613 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2619 /************************************************************************
2620 * Handle a command passed in from userspace.
2623 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2625 struct ciss_request *cr;
2626 struct ciss_command *cc;
2627 struct ciss_error_info *ce;
2637 while (ciss_get_request(sc, &cr) != 0)
2638 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2642 * Allocate an in-kernel databuffer if required, copy in user data.
2644 mtx_unlock(&sc->ciss_mtx);
2645 cr->cr_length = ioc->buf_size;
2646 if (ioc->buf_size > 0) {
2647 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2651 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2652 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2658 * Build the request based on the user command.
2660 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2661 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2663 /* XXX anything else to populate here? */
2664 mtx_lock(&sc->ciss_mtx);
2669 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2670 debug(0, "request failed - %d", error);
2675 * Check to see if the command succeeded.
2677 ce = (struct ciss_error_info *)&(cc->sg[0]);
2678 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2679 bzero(ce, sizeof(*ce));
2682 * Copy the results back to the user.
2684 bcopy(ce, &ioc->error_info, sizeof(*ce));
2685 mtx_unlock(&sc->ciss_mtx);
2686 if ((ioc->buf_size > 0) &&
2687 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2688 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2696 mtx_lock(&sc->ciss_mtx);
2699 if ((cr != NULL) && (cr->cr_data != NULL))
2700 free(cr->cr_data, CISS_MALLOC_CLASS);
2702 ciss_release_request(cr);
2706 /************************************************************************
2707 * Map a request into bus-visible space, initialise the scatter/gather
2711 ciss_map_request(struct ciss_request *cr)
2713 struct ciss_softc *sc;
2720 /* check that mapping is necessary */
2721 if (cr->cr_flags & CISS_REQ_MAPPED)
2724 cr->cr_flags |= CISS_REQ_MAPPED;
2726 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2727 BUS_DMASYNC_PREWRITE);
2729 if (cr->cr_data != NULL) {
2730 if (cr->cr_flags & CISS_REQ_CCB)
2731 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat,
2732 cr->cr_datamap, cr->cr_data,
2733 ciss_request_map_helper, cr, 0);
2735 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2736 cr->cr_data, cr->cr_length,
2737 ciss_request_map_helper, cr, 0);
2742 * Post the command to the adapter.
2744 cr->cr_sg_tag = CISS_SG_NONE;
2745 cr->cr_flags |= CISS_REQ_BUSY;
2747 CISS_TL_PERF_POST_CMD(sc, cr);
2749 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2756 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2758 struct ciss_command *cc;
2759 struct ciss_request *cr;
2760 struct ciss_softc *sc;
2765 cr = (struct ciss_request *)arg;
2769 for (i = 0; i < nseg; i++) {
2770 cc->sg[i].address = segs[i].ds_addr;
2771 cc->sg[i].length = segs[i].ds_len;
2772 cc->sg[i].extension = 0;
2774 /* we leave the s/g table entirely within the command */
2775 cc->header.sg_in_list = nseg;
2776 cc->header.sg_total = nseg;
2778 if (cr->cr_flags & CISS_REQ_DATAIN)
2779 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2780 if (cr->cr_flags & CISS_REQ_DATAOUT)
2781 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2784 cr->cr_sg_tag = CISS_SG_NONE;
2786 cr->cr_sg_tag = CISS_SG_1;
2788 cr->cr_sg_tag = CISS_SG_2;
2790 cr->cr_sg_tag = CISS_SG_4;
2792 cr->cr_sg_tag = CISS_SG_8;
2793 else if (nseg <= 16)
2794 cr->cr_sg_tag = CISS_SG_16;
2795 else if (nseg <= 32)
2796 cr->cr_sg_tag = CISS_SG_32;
2798 cr->cr_sg_tag = CISS_SG_MAX;
2801 * Post the command to the adapter.
2803 cr->cr_flags |= CISS_REQ_BUSY;
2805 CISS_TL_PERF_POST_CMD(sc, cr);
2807 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2810 /************************************************************************
2811 * Unmap a request from bus-visible space.
2814 ciss_unmap_request(struct ciss_request *cr)
2816 struct ciss_softc *sc;
2822 /* check that unmapping is necessary */
2823 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2826 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2827 BUS_DMASYNC_POSTWRITE);
2829 if (cr->cr_data == NULL)
2832 if (cr->cr_flags & CISS_REQ_DATAIN)
2833 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2834 if (cr->cr_flags & CISS_REQ_DATAOUT)
2835 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2837 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2839 cr->cr_flags &= ~CISS_REQ_MAPPED;
2842 /************************************************************************
2843 * Attach the driver to CAM.
2845 * We put all the logical drives on a single SCSI bus.
2848 ciss_cam_init(struct ciss_softc *sc)
2855 * Allocate a devq. We can reuse this for the masked physical
2856 * devices if we decide to export these as well.
2858 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2859 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2866 * This naturally wastes a bit of memory. The alternative is to allocate
2867 * and register each bus as it is found, and then track them on a linked
2868 * list. Unfortunately, the driver has a few places where it needs to
2869 * look up the SIM based solely on bus number, and it's unclear whether
2870 * a list traversal would work for these situations.
2872 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2873 CISS_PHYSICAL_BASE);
2874 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2875 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2876 if (sc->ciss_cam_sim == NULL) {
2877 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2881 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2882 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2884 device_get_unit(sc->ciss_dev),
2887 sc->ciss_max_requests - 2,
2888 sc->ciss_cam_devq)) == NULL) {
2889 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2894 * Register bus with this SIM.
2896 mtx_lock(&sc->ciss_mtx);
2897 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2898 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2899 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2900 mtx_unlock(&sc->ciss_mtx);
2904 mtx_unlock(&sc->ciss_mtx);
2907 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2908 CISS_PHYSICAL_BASE; i++) {
2909 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2911 device_get_unit(sc->ciss_dev),
2913 sc->ciss_max_requests - 2,
2914 sc->ciss_cam_devq)) == NULL) {
2915 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2919 mtx_lock(&sc->ciss_mtx);
2920 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2921 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2922 mtx_unlock(&sc->ciss_mtx);
2925 mtx_unlock(&sc->ciss_mtx);
2931 /************************************************************************
2932 * Initiate a rescan of the 'logical devices' SIM
2935 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2941 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2942 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2946 if (xpt_create_path(&ccb->ccb_h.path, NULL,
2947 cam_sim_path(sc->ciss_cam_sim[bus]),
2948 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2949 ciss_printf(sc, "rescan failed (can't create path)\n");
2954 /* scan is now in progress */
2957 /************************************************************************
2958 * Handle requests coming from CAM
2961 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2963 struct ciss_softc *sc;
2964 struct ccb_scsiio *csio;
2968 sc = cam_sim_softc(sim);
2969 bus = cam_sim_bus(sim);
2970 csio = (struct ccb_scsiio *)&ccb->csio;
2971 target = csio->ccb_h.target_id;
2972 physical = CISS_IS_PHYSICAL(bus);
2974 switch (ccb->ccb_h.func_code) {
2976 /* perform SCSI I/O */
2978 if (!ciss_cam_action_io(sim, csio))
2982 /* perform geometry calculations */
2983 case XPT_CALC_GEOMETRY:
2985 struct ccb_calc_geometry *ccg = &ccb->ccg;
2986 struct ciss_ldrive *ld;
2988 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2992 ld = &sc->ciss_logical[bus][target];
2995 * Use the cached geometry settings unless the fault tolerance
2998 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
2999 u_int32_t secs_per_cylinder;
3002 ccg->secs_per_track = 32;
3003 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3004 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3006 ccg->heads = ld->cl_geometry.heads;
3007 ccg->secs_per_track = ld->cl_geometry.sectors;
3008 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
3010 ccb->ccb_h.status = CAM_REQ_CMP;
3014 /* handle path attribute inquiry */
3017 struct ccb_pathinq *cpi = &ccb->cpi;
3020 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3022 cpi->version_num = 1;
3023 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
3024 cpi->target_sprt = 0;
3026 cpi->max_target = sc->ciss_cfg->max_logical_supported;
3027 cpi->max_lun = 0; /* 'logical drive' channel only */
3028 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3029 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3030 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
3031 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3032 cpi->unit_number = cam_sim_unit(sim);
3033 cpi->bus_id = cam_sim_bus(sim);
3034 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3035 cpi->transport = XPORT_SPI;
3036 cpi->transport_version = 2;
3037 cpi->protocol = PROTO_SCSI;
3038 cpi->protocol_version = SCSI_REV_2;
3039 if (sc->ciss_cfg->max_sg_length == 0) {
3042 /* XXX Fix for ZMR cards that advertise max_sg_length == 32
3043 * Confusing bit here. max_sg_length is usually a power of 2. We always
3044 * need to subtract 1 to account for partial pages. Then we need to
3045 * align on a valid PAGE_SIZE so we round down to the nearest power of 2.
3046 * Add 1 so we can then subtract it out in the assignment to maxio.
3047 * The reason for all these shenanigans is to create a maxio value that
3048 * creates IO operations to volumes that yield consistent operations
3049 * with good performance.
3051 sg_length = sc->ciss_cfg->max_sg_length - 1;
3052 sg_length = (1 << (fls(sg_length) - 1)) + 1;
3054 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE;
3055 ccb->ccb_h.status = CAM_REQ_CMP;
3059 case XPT_GET_TRAN_SETTINGS:
3061 struct ccb_trans_settings *cts = &ccb->cts;
3063 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3064 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3066 bus = cam_sim_bus(sim);
3067 target = cts->ccb_h.target_id;
3069 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3070 /* disconnect always OK */
3071 cts->protocol = PROTO_SCSI;
3072 cts->protocol_version = SCSI_REV_2;
3073 cts->transport = XPORT_SPI;
3074 cts->transport_version = 2;
3076 spi->valid = CTS_SPI_VALID_DISC;
3077 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3079 scsi->valid = CTS_SCSI_VALID_TQ;
3080 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3082 cts->ccb_h.status = CAM_REQ_CMP;
3086 default: /* we can't do this */
3087 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3088 ccb->ccb_h.status = CAM_REQ_INVALID;
3095 /************************************************************************
3096 * Handle a CAM SCSI I/O request.
3099 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3101 struct ciss_softc *sc;
3103 struct ciss_request *cr;
3104 struct ciss_command *cc;
3107 sc = cam_sim_softc(sim);
3108 bus = cam_sim_bus(sim);
3109 target = csio->ccb_h.target_id;
3111 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3113 /* check that the CDB pointer is not to a physical address */
3114 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3115 debug(3, " CDB pointer is to physical address");
3116 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3119 /* abandon aborted ccbs or those that have failed validation */
3120 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3121 debug(3, "abandoning CCB due to abort/validation failure");
3125 /* handle emulation of some SCSI commands ourself */
3126 if (ciss_cam_emulate(sc, csio))
3130 * Get a request to manage this command. If we can't, return the
3131 * ccb, freeze the queue and flag so that we unfreeze it when a
3132 * request completes.
3134 if ((error = ciss_get_request(sc, &cr)) != 0) {
3135 xpt_freeze_simq(sim, 1);
3136 sc->ciss_flags |= CISS_FLAG_BUSY;
3137 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3142 * Build the command.
3146 cr->cr_length = csio->dxfer_len;
3147 cr->cr_complete = ciss_cam_complete;
3148 cr->cr_private = csio;
3151 * Target the right logical volume.
3153 if (CISS_IS_PHYSICAL(bus))
3154 cc->header.address =
3155 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3157 cc->header.address =
3158 sc->ciss_logical[bus][target].cl_address;
3159 cc->cdb.cdb_length = csio->cdb_len;
3160 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3161 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3162 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3163 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB;
3164 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3165 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3166 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB;
3167 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3171 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3173 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3174 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3175 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3177 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3181 * Submit the request to the adapter.
3183 * Note that this may fail if we're unable to map the request (and
3184 * if we ever learn a transport layer other than simple, may fail
3185 * if the adapter rejects the command).
3187 if ((error = ciss_start(cr)) != 0) {
3188 xpt_freeze_simq(sim, 1);
3189 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3190 if (error == EINPROGRESS) {
3193 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3194 ciss_release_request(cr);
3202 /************************************************************************
3203 * Emulate SCSI commands the adapter doesn't handle as we might like.
3206 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3211 target = csio->ccb_h.target_id;
3212 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3213 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3214 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3216 if (CISS_IS_PHYSICAL(bus)) {
3217 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3218 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3219 xpt_done((union ccb *)csio);
3226 * Handle requests for volumes that don't exist or are not online.
3227 * A selection timeout is slightly better than an illegal request.
3228 * Other errors might be better.
3230 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3231 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3232 xpt_done((union ccb *)csio);
3236 /* if we have to fake Synchronise Cache */
3237 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3239 * If this is a Synchronise Cache command, typically issued when
3240 * a device is closed, flush the adapter and complete now.
3242 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3243 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3244 ciss_flush_adapter(sc);
3245 csio->ccb_h.status |= CAM_REQ_CMP;
3246 xpt_done((union ccb *)csio);
3252 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3253 * at least one LUN field to be pre created for us, so snag it and fill in
3254 * the least significant byte indicating 1 LUN here. Emulate the command
3255 * return to shut up warning on console of a CDB error. swb
3257 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3258 csio->data_ptr[3] = 8;
3259 csio->ccb_h.status |= CAM_REQ_CMP;
3260 xpt_done((union ccb *)csio);
3267 /************************************************************************
3268 * Check for possibly-completed commands.
3271 ciss_cam_poll(struct cam_sim *sim)
3274 struct ciss_softc *sc = cam_sim_softc(sim);
3280 ciss_perf_done(sc, &qh);
3283 ciss_complete(sc, &qh);
3286 /************************************************************************
3287 * Handle completion of a command - pass results back through the CCB
3290 ciss_cam_complete(struct ciss_request *cr)
3292 struct ciss_softc *sc;
3293 struct ciss_command *cc;
3294 struct ciss_error_info *ce;
3295 struct ccb_scsiio *csio;
3303 ce = (struct ciss_error_info *)&(cc->sg[0]);
3304 csio = (struct ccb_scsiio *)cr->cr_private;
3307 * Extract status values from request.
3309 ciss_report_request(cr, &command_status, &scsi_status);
3310 csio->scsi_status = scsi_status;
3313 * Handle specific SCSI status values.
3315 switch(scsi_status) {
3316 /* no status due to adapter error */
3318 debug(0, "adapter error");
3319 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3322 /* no status due to command completed OK */
3323 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3324 debug(2, "SCSI_STATUS_OK");
3325 csio->ccb_h.status |= CAM_REQ_CMP;
3328 /* check condition, sense data included */
3329 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3330 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3331 ce->sense_length, ce->residual_count);
3332 bzero(&csio->sense_data, SSD_FULL_SIZE);
3333 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3334 if (csio->sense_len > ce->sense_length)
3335 csio->sense_resid = csio->sense_len - ce->sense_length;
3337 csio->sense_resid = 0;
3338 csio->resid = ce->residual_count;
3339 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3342 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3343 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len -
3344 csio->sense_resid, /*show_errors*/ 1));
3349 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3350 debug(0, "SCSI_STATUS_BUSY");
3351 csio->ccb_h.status |= CAM_SCSI_BUSY;
3355 debug(0, "unknown status 0x%x", csio->scsi_status);
3356 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3360 /* handle post-command fixup */
3361 ciss_cam_complete_fixup(sc, csio);
3363 ciss_release_request(cr);
3364 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3365 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3366 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3367 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3369 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3371 xpt_done((union ccb *)csio);
3374 /********************************************************************************
3375 * Fix up the result of some commands here.
3378 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3380 struct scsi_inquiry_data *inq;
3381 struct ciss_ldrive *cl;
3385 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3386 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3387 if (cdb[0] == INQUIRY &&
3388 (cdb[1] & SI_EVPD) == 0 &&
3389 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3390 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3392 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3393 target = csio->ccb_h.target_id;
3394 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3397 * If the controller is in JBOD mode, there are no logical volumes.
3398 * Let the disks be probed and dealt with via CAM. Else, mask off
3399 * the physical disks and setup the parts of the inq structure for
3400 * the logical volume. swb
3402 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){
3403 if (CISS_IS_PHYSICAL(bus)) {
3404 if (SID_TYPE(inq) == T_DIRECT)
3405 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3408 cl = &sc->ciss_logical[bus][target];
3410 padstr(inq->vendor, "HP",
3412 padstr(inq->product,
3413 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3415 padstr(inq->revision,
3416 ciss_name_ldrive_status(cl->cl_lstatus->status),
3423 /********************************************************************************
3424 * Name the device at (target)
3426 * XXX is this strictly correct?
3429 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3431 struct cam_periph *periph;
3432 struct cam_path *path;
3435 if (CISS_IS_PHYSICAL(bus))
3438 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3441 if (status == CAM_REQ_CMP) {
3442 xpt_path_lock(path);
3443 periph = cam_periph_find(path, NULL);
3444 xpt_path_unlock(path);
3445 xpt_free_path(path);
3446 if (periph != NULL) {
3447 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3448 periph->periph_name, periph->unit_number);
3452 sc->ciss_logical[bus][target].cl_name[0] = 0;
3456 /************************************************************************
3457 * Periodic status monitoring.
3460 ciss_periodic(void *arg)
3462 struct ciss_softc *sc;
3463 struct ciss_request *cr = NULL;
3464 struct ciss_command *cc = NULL;
3469 sc = (struct ciss_softc *)arg;
3472 * Check the adapter heartbeat.
3474 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3475 sc->ciss_heart_attack++;
3476 debug(0, "adapter heart attack in progress 0x%x/%d",
3477 sc->ciss_heartbeat, sc->ciss_heart_attack);
3478 if (sc->ciss_heart_attack == 3) {
3479 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3480 ciss_disable_adapter(sc);
3484 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3485 sc->ciss_heart_attack = 0;
3486 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3490 * Send the NOP message and wait for a response.
3492 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3494 cr->cr_complete = ciss_nop_complete;
3495 cc->cdb.cdb_length = 1;
3496 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3497 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3498 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3499 cc->cdb.timeout = 0;
3500 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3502 if ((error = ciss_start(cr)) != 0) {
3503 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3508 * If the notify event request has died for some reason, or has
3509 * not started yet, restart it.
3511 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3512 debug(0, "(re)starting Event Notify chain");
3513 ciss_notify_event(sc);
3519 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3523 ciss_nop_complete(struct ciss_request *cr)
3525 struct ciss_softc *sc;
3526 static int first_time = 1;
3529 if (ciss_report_request(cr, NULL, NULL) != 0) {
3530 if (first_time == 1) {
3532 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3536 ciss_release_request(cr);
3539 /************************************************************************
3540 * Disable the adapter.
3542 * The all requests in completed queue is failed with hardware error.
3543 * This will cause failover in a multipath configuration.
3546 ciss_disable_adapter(struct ciss_softc *sc)
3549 struct ciss_request *cr;
3550 struct ciss_command *cc;
3551 struct ciss_error_info *ce;
3554 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3555 pci_disable_busmaster(sc->ciss_dev);
3556 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3558 for (i = 1; i < sc->ciss_max_requests; i++) {
3559 cr = &sc->ciss_request[i];
3560 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3564 ce = (struct ciss_error_info *)&(cc->sg[0]);
3565 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3566 ciss_enqueue_complete(cr, &qh);
3570 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3574 * If the request has a callback, invoke it.
3576 if (cr->cr_complete != NULL) {
3577 cr->cr_complete(cr);
3582 * If someone is sleeping on this request, wake them up.
3584 if (cr->cr_flags & CISS_REQ_SLEEP) {
3585 cr->cr_flags &= ~CISS_REQ_SLEEP;
3592 /************************************************************************
3593 * Request a notification response from the adapter.
3595 * If (cr) is NULL, this is the first request of the adapter, so
3596 * reset the adapter's message pointer and start with the oldest
3597 * message available.
3600 ciss_notify_event(struct ciss_softc *sc)
3602 struct ciss_request *cr;
3603 struct ciss_command *cc;
3604 struct ciss_notify_cdb *cnc;
3609 cr = sc->ciss_periodic_notify;
3611 /* get a request if we don't already have one */
3613 if ((error = ciss_get_request(sc, &cr)) != 0) {
3614 debug(0, "can't get notify event request");
3617 sc->ciss_periodic_notify = cr;
3618 cr->cr_complete = ciss_notify_complete;
3619 debug(1, "acquired request %d", cr->cr_tag);
3623 * Get a databuffer if we don't already have one, note that the
3624 * adapter command wants a larger buffer than the actual
3627 if (cr->cr_data == NULL) {
3628 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3629 debug(0, "can't get notify event request buffer");
3633 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3636 /* re-setup the request's command (since we never release it) XXX overkill*/
3637 ciss_preen_command(cr);
3639 /* (re)build the notify event command */
3641 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3642 cc->header.address.physical.bus = 0;
3643 cc->header.address.physical.target = 0;
3645 cc->cdb.cdb_length = sizeof(*cnc);
3646 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3647 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3648 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3649 cc->cdb.timeout = 0; /* no timeout, we hope */
3651 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3652 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3653 cnc->opcode = CISS_OPCODE_READ;
3654 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3655 cnc->timeout = 0; /* no timeout, we hope */
3656 cnc->synchronous = 0;
3658 cnc->seek_to_oldest = 0;
3659 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3663 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3665 /* submit the request */
3666 error = ciss_start(cr);
3671 if (cr->cr_data != NULL)
3672 free(cr->cr_data, CISS_MALLOC_CLASS);
3673 ciss_release_request(cr);
3675 sc->ciss_periodic_notify = NULL;
3676 debug(0, "can't submit notify event request");
3677 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3679 debug(1, "notify event submitted");
3680 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3685 ciss_notify_complete(struct ciss_request *cr)
3687 struct ciss_command *cc;
3688 struct ciss_notify *cn;
3689 struct ciss_softc *sc;
3695 cn = (struct ciss_notify *)cr->cr_data;
3699 * Report request results, decode status.
3701 ciss_report_request(cr, &command_status, &scsi_status);
3704 * Abort the chain on a fatal error.
3706 * XXX which of these are actually errors?
3708 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3709 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3710 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3711 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3712 ciss_name_command_status(command_status));
3713 ciss_release_request(cr);
3714 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3719 * If the adapter gave us a text message, print it.
3721 if (cn->message[0] != 0)
3722 ciss_printf(sc, "*** %.80s\n", cn->message);
3724 debug(0, "notify event class %d subclass %d detail %d",
3725 cn->class, cn->subclass, cn->detail);
3728 * If the response indicates that the notifier has been aborted,
3729 * release the notifier command.
3731 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3732 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3733 (cn->detail == 1)) {
3734 debug(0, "notifier exiting");
3735 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3736 ciss_release_request(cr);
3737 sc->ciss_periodic_notify = NULL;
3738 wakeup(&sc->ciss_periodic_notify);
3740 /* Handle notify events in a kernel thread */
3741 ciss_enqueue_notify(cr);
3742 sc->ciss_periodic_notify = NULL;
3743 wakeup(&sc->ciss_periodic_notify);
3744 wakeup(&sc->ciss_notify);
3747 * Send a new notify event command, if we're not aborting.
3749 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3750 ciss_notify_event(sc);
3754 /************************************************************************
3755 * Abort the Notify Event chain.
3757 * Note that we can't just abort the command in progress; we have to
3758 * explicitly issue an Abort Notify Event command in order for the
3759 * adapter to clean up correctly.
3761 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3762 * the chain will not restart itself.
3765 ciss_notify_abort(struct ciss_softc *sc)
3767 struct ciss_request *cr;
3768 struct ciss_command *cc;
3769 struct ciss_notify_cdb *cnc;
3770 int error, command_status, scsi_status;
3777 /* verify that there's an outstanding command */
3778 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3781 /* get a command to issue the abort with */
3782 if ((error = ciss_get_request(sc, &cr)))
3785 /* get a buffer for the result */
3786 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3787 debug(0, "can't get notify event request buffer");
3791 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3795 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3796 cc->header.address.physical.bus = 0;
3797 cc->header.address.physical.target = 0;
3798 cc->cdb.cdb_length = sizeof(*cnc);
3799 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3800 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3801 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3802 cc->cdb.timeout = 0; /* no timeout, we hope */
3804 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3805 bzero(cnc, sizeof(*cnc));
3806 cnc->opcode = CISS_OPCODE_WRITE;
3807 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3808 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3810 ciss_print_request(cr);
3813 * Submit the request and wait for it to complete.
3815 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3816 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3823 ciss_report_request(cr, &command_status, &scsi_status);
3824 switch(command_status) {
3825 case CISS_CMD_STATUS_SUCCESS:
3827 case CISS_CMD_STATUS_INVALID_COMMAND:
3829 * Some older adapters don't support the CISS version of this
3830 * command. Fall back to using the BMIC version.
3832 error = ciss_notify_abort_bmic(sc);
3837 case CISS_CMD_STATUS_TARGET_STATUS:
3839 * This can happen if the adapter thinks there wasn't an outstanding
3840 * Notify Event command but we did. We clean up here.
3842 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3843 if (sc->ciss_periodic_notify != NULL)
3844 ciss_release_request(sc->ciss_periodic_notify);
3851 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3852 ciss_name_command_status(command_status));
3858 * Sleep waiting for the notifier command to complete. Note
3859 * that if it doesn't, we may end up in a bad situation, since
3860 * the adapter may deliver it later. Also note that the adapter
3861 * requires the Notify Event command to be cancelled in order to
3862 * maintain internal bookkeeping.
3864 while (sc->ciss_periodic_notify != NULL) {
3865 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3866 if (error == EWOULDBLOCK) {
3867 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3873 /* release the cancel request */
3875 if (cr->cr_data != NULL)
3876 free(cr->cr_data, CISS_MALLOC_CLASS);
3877 ciss_release_request(cr);
3880 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3884 /************************************************************************
3885 * Abort the Notify Event chain using a BMIC command.
3888 ciss_notify_abort_bmic(struct ciss_softc *sc)
3890 struct ciss_request *cr;
3891 int error, command_status;
3898 /* verify that there's an outstanding command */
3899 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3903 * Build a BMIC command to cancel the Notify on Event command.
3905 * Note that we are sending a CISS opcode here. Odd.
3907 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3912 * Submit the request and wait for it to complete.
3914 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3915 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3922 ciss_report_request(cr, &command_status, NULL);
3923 switch(command_status) {
3924 case CISS_CMD_STATUS_SUCCESS:
3927 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3928 ciss_name_command_status(command_status));
3935 ciss_release_request(cr);
3939 /************************************************************************
3940 * Handle rescanning all the logical volumes when a notify event
3941 * causes the drives to come online or offline.
3944 ciss_notify_rescan_logical(struct ciss_softc *sc)
3946 struct ciss_lun_report *cll;
3947 struct ciss_ldrive *ld;
3951 * We must rescan all logical volumes to get the right logical
3954 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3955 sc->ciss_cfg->max_logical_supported);
3959 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3962 * Delete any of the drives which were destroyed by the
3965 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3966 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3967 ld = &sc->ciss_logical[i][j];
3969 if (ld->cl_update == 0)
3972 if (ld->cl_status != CISS_LD_ONLINE) {
3973 ciss_cam_rescan_target(sc, i, j);
3976 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3978 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3980 ld->cl_ldrive = NULL;
3981 ld->cl_lstatus = NULL;
3987 * Scan for new drives.
3989 for (i = 0; i < ndrives; i++) {
3992 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3993 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3994 ld = &sc->ciss_logical[bus][target];
3996 if (ld->cl_update == 0)
4000 ld->cl_address = cll->lun[i];
4001 ld->cl_controller = &sc->ciss_controllers[bus];
4002 if (ciss_identify_logical(sc, ld) == 0) {
4003 ciss_cam_rescan_target(sc, bus, target);
4006 free(cll, CISS_MALLOC_CLASS);
4009 /************************************************************************
4010 * Handle a notify event relating to the status of a logical drive.
4012 * XXX need to be able to defer some of these to properly handle
4013 * calling the "ID Physical drive" command, unless the 'extended'
4014 * drive IDs are always in BIG_MAP format.
4017 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
4019 struct ciss_ldrive *ld;
4020 int ostatus, bus, target;
4024 bus = cn->device.physical.bus;
4025 target = cn->data.logical_status.logical_drive;
4026 ld = &sc->ciss_logical[bus][target];
4028 switch (cn->subclass) {
4029 case CISS_NOTIFY_LOGICAL_STATUS:
4030 switch (cn->detail) {
4032 ciss_name_device(sc, bus, target);
4033 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4034 cn->data.logical_status.logical_drive, ld->cl_name,
4035 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4036 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4037 cn->data.logical_status.spare_state,
4038 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4041 * Update our idea of the drive's status.
4043 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
4044 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4045 if (ld->cl_lstatus != NULL)
4046 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4049 * Have CAM rescan the drive if its status has changed.
4051 if (ostatus != ld->cl_status) {
4053 ciss_notify_rescan_logical(sc);
4058 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4059 ciss_name_device(sc, bus, target);
4060 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4061 cn->data.logical_status.logical_drive, ld->cl_name);
4062 ciss_accept_media(sc, ld);
4065 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4066 ciss_notify_rescan_logical(sc);
4071 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4072 cn->data.rebuild_aborted.logical_drive,
4074 (cn->detail == 2) ? "read" : "write");
4079 case CISS_NOTIFY_LOGICAL_ERROR:
4080 if (cn->detail == 0) {
4081 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4082 cn->data.io_error.logical_drive,
4084 cn->data.io_error.failure_bus,
4085 cn->data.io_error.failure_drive);
4086 /* XXX should we take the drive down at this point, or will we be told? */
4090 case CISS_NOTIFY_LOGICAL_SURFACE:
4091 if (cn->detail == 0)
4092 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4093 cn->data.consistency_completed.logical_drive,
4099 /************************************************************************
4100 * Handle a notify event relating to the status of a physical drive.
4103 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4107 /************************************************************************
4108 * Handle a notify event relating to the status of a physical drive.
4111 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4113 struct ciss_lun_report *cll = NULL;
4116 switch (cn->subclass) {
4117 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4118 case CISS_NOTIFY_HOTPLUG_NONDISK:
4119 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4121 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4123 if (cn->detail == 0) {
4125 * Mark the device offline so that it'll start producing selection
4126 * timeouts to the upper layer.
4128 if ((bus >= 0) && (target >= 0))
4129 sc->ciss_physical[bus][target].cp_online = 0;
4132 * Rescan the physical lun list for new items
4134 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4135 sc->ciss_cfg->max_physical_supported);
4137 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4140 ciss_filter_physical(sc, cll);
4145 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4150 free(cll, CISS_MALLOC_CLASS);
4153 /************************************************************************
4154 * Handle deferred processing of notify events. Notify events may need
4155 * sleep which is unsafe during an interrupt.
4158 ciss_notify_thread(void *arg)
4160 struct ciss_softc *sc;
4161 struct ciss_request *cr;
4162 struct ciss_notify *cn;
4164 sc = (struct ciss_softc *)arg;
4165 mtx_lock(&sc->ciss_mtx);
4168 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4169 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4170 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4173 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4176 cr = ciss_dequeue_notify(sc);
4180 cn = (struct ciss_notify *)cr->cr_data;
4182 switch (cn->class) {
4183 case CISS_NOTIFY_HOTPLUG:
4184 ciss_notify_hotplug(sc, cn);
4186 case CISS_NOTIFY_LOGICAL:
4187 ciss_notify_logical(sc, cn);
4189 case CISS_NOTIFY_PHYSICAL:
4190 ciss_notify_physical(sc, cn);
4194 ciss_release_request(cr);
4197 sc->ciss_notify_thread = NULL;
4198 wakeup(&sc->ciss_notify_thread);
4200 mtx_unlock(&sc->ciss_mtx);
4204 /************************************************************************
4205 * Start the notification kernel thread.
4208 ciss_spawn_notify_thread(struct ciss_softc *sc)
4211 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4212 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4213 device_get_unit(sc->ciss_dev)))
4214 panic("Could not create notify thread\n");
4217 /************************************************************************
4218 * Kill the notification kernel thread.
4221 ciss_kill_notify_thread(struct ciss_softc *sc)
4224 if (sc->ciss_notify_thread == NULL)
4227 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4228 wakeup(&sc->ciss_notify);
4229 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4232 /************************************************************************
4236 ciss_print_request(struct ciss_request *cr)
4238 struct ciss_softc *sc;
4239 struct ciss_command *cc;
4245 ciss_printf(sc, "REQUEST @ %p\n", cr);
4246 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4247 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4248 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4249 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4250 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4251 switch(cc->header.address.mode.mode) {
4252 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4253 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4254 ciss_printf(sc, " physical bus %d target %d\n",
4255 cc->header.address.physical.bus, cc->header.address.physical.target);
4257 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4258 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4261 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4262 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4263 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4264 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4266 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4267 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4268 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4269 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4271 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4273 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4275 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4276 /* XXX print error info */
4278 /* since we don't use chained s/g, don't support it here */
4279 for (i = 0; i < cc->header.sg_in_list; i++) {
4281 ciss_printf(sc, " ");
4282 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4283 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4289 /************************************************************************
4290 * Print information about the status of a logical drive.
4293 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4297 if (ld->cl_lstatus == NULL) {
4298 printf("does not exist\n");
4302 /* print drive status */
4303 switch(ld->cl_lstatus->status) {
4304 case CISS_LSTATUS_OK:
4307 case CISS_LSTATUS_INTERIM_RECOVERY:
4308 printf("in interim recovery mode\n");
4310 case CISS_LSTATUS_READY_RECOVERY:
4311 printf("ready to begin recovery\n");
4313 case CISS_LSTATUS_RECOVERING:
4314 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4315 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4316 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4317 bus, target, ld->cl_lstatus->blocks_to_recover);
4319 case CISS_LSTATUS_EXPANDING:
4320 printf("being expanded, %u blocks remaining\n",
4321 ld->cl_lstatus->blocks_to_recover);
4323 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4324 printf("queued for expansion\n");
4326 case CISS_LSTATUS_FAILED:
4327 printf("queued for expansion\n");
4329 case CISS_LSTATUS_WRONG_PDRIVE:
4330 printf("wrong physical drive inserted\n");
4332 case CISS_LSTATUS_MISSING_PDRIVE:
4333 printf("missing a needed physical drive\n");
4335 case CISS_LSTATUS_BECOMING_READY:
4336 printf("becoming ready\n");
4340 /* print failed physical drives */
4341 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4342 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4343 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4346 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4347 ld->cl_lstatus->drive_failure_map[i]);
4352 #include "opt_ddb.h"
4354 #include <ddb/ddb.h>
4355 /************************************************************************
4356 * Print information about the controller/driver.
4359 ciss_print_adapter(struct ciss_softc *sc)
4363 ciss_printf(sc, "ADAPTER:\n");
4364 for (i = 0; i < CISSQ_COUNT; i++) {
4365 ciss_printf(sc, "%s %d/%d\n",
4367 i == 1 ? "busy" : "complete",
4368 sc->ciss_qstat[i].q_length,
4369 sc->ciss_qstat[i].q_max);
4371 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4372 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4373 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4375 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4376 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4377 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4378 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4382 /* XXX Should physical drives be printed out here? */
4384 for (i = 1; i < sc->ciss_max_requests; i++)
4385 ciss_print_request(sc->ciss_request + i);
4389 DB_COMMAND(ciss_prt, db_ciss_prt)
4391 struct ciss_softc *sc;
4395 dc = devclass_find("ciss");
4397 printf("%s: can't find devclass!\n", __func__);
4400 maxciss = devclass_get_maxunit(dc);
4401 for (i = 0; i < maxciss; i++) {
4402 sc = devclass_get_softc(dc, i);
4403 ciss_print_adapter(sc);
4409 /************************************************************************
4410 * Return a name for a logical drive status value.
4413 ciss_name_ldrive_status(int status)
4416 case CISS_LSTATUS_OK:
4418 case CISS_LSTATUS_FAILED:
4420 case CISS_LSTATUS_NOT_CONFIGURED:
4421 return("not configured");
4422 case CISS_LSTATUS_INTERIM_RECOVERY:
4423 return("interim recovery");
4424 case CISS_LSTATUS_READY_RECOVERY:
4425 return("ready for recovery");
4426 case CISS_LSTATUS_RECOVERING:
4427 return("recovering");
4428 case CISS_LSTATUS_WRONG_PDRIVE:
4429 return("wrong physical drive inserted");
4430 case CISS_LSTATUS_MISSING_PDRIVE:
4431 return("missing physical drive");
4432 case CISS_LSTATUS_EXPANDING:
4433 return("expanding");
4434 case CISS_LSTATUS_BECOMING_READY:
4435 return("becoming ready");
4436 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4437 return("queued for expansion");
4439 return("unknown status");
4442 /************************************************************************
4443 * Return an online/offline/nonexistent value for a logical drive
4447 ciss_decode_ldrive_status(int status)
4450 case CISS_LSTATUS_NOT_CONFIGURED:
4451 return(CISS_LD_NONEXISTENT);
4453 case CISS_LSTATUS_OK:
4454 case CISS_LSTATUS_INTERIM_RECOVERY:
4455 case CISS_LSTATUS_READY_RECOVERY:
4456 case CISS_LSTATUS_RECOVERING:
4457 case CISS_LSTATUS_EXPANDING:
4458 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4459 return(CISS_LD_ONLINE);
4461 case CISS_LSTATUS_FAILED:
4462 case CISS_LSTATUS_WRONG_PDRIVE:
4463 case CISS_LSTATUS_MISSING_PDRIVE:
4464 case CISS_LSTATUS_BECOMING_READY:
4466 return(CISS_LD_OFFLINE);
4471 /************************************************************************
4472 * Return a name for a logical drive's organisation.
4475 ciss_name_ldrive_org(int org)
4478 case CISS_LDRIVE_RAID0:
4480 case CISS_LDRIVE_RAID1:
4481 return("RAID 1(1+0)");
4482 case CISS_LDRIVE_RAID4:
4484 case CISS_LDRIVE_RAID5:
4486 case CISS_LDRIVE_RAID51:
4488 case CISS_LDRIVE_RAIDADG:
4494 /************************************************************************
4495 * Return a name for a command status value.
4498 ciss_name_command_status(int status)
4501 case CISS_CMD_STATUS_SUCCESS:
4503 case CISS_CMD_STATUS_TARGET_STATUS:
4504 return("target status");
4505 case CISS_CMD_STATUS_DATA_UNDERRUN:
4506 return("data underrun");
4507 case CISS_CMD_STATUS_DATA_OVERRUN:
4508 return("data overrun");
4509 case CISS_CMD_STATUS_INVALID_COMMAND:
4510 return("invalid command");
4511 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4512 return("protocol error");
4513 case CISS_CMD_STATUS_HARDWARE_ERROR:
4514 return("hardware error");
4515 case CISS_CMD_STATUS_CONNECTION_LOST:
4516 return("connection lost");
4517 case CISS_CMD_STATUS_ABORTED:
4519 case CISS_CMD_STATUS_ABORT_FAILED:
4520 return("abort failed");
4521 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4522 return("unsolicited abort");
4523 case CISS_CMD_STATUS_TIMEOUT:
4525 case CISS_CMD_STATUS_UNABORTABLE:
4526 return("unabortable");
4528 return("unknown status");
4531 /************************************************************************
4532 * Handle an open on the control device.
4535 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4537 struct ciss_softc *sc;
4541 sc = (struct ciss_softc *)dev->si_drv1;
4543 /* we might want to veto if someone already has us open */
4545 mtx_lock(&sc->ciss_mtx);
4546 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4547 mtx_unlock(&sc->ciss_mtx);
4551 /************************************************************************
4552 * Handle the last close on the control device.
4555 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4557 struct ciss_softc *sc;
4561 sc = (struct ciss_softc *)dev->si_drv1;
4563 mtx_lock(&sc->ciss_mtx);
4564 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4565 mtx_unlock(&sc->ciss_mtx);
4569 /********************************************************************************
4570 * Handle adapter-specific control operations.
4572 * Note that the API here is compatible with the Linux driver, in order to
4573 * simplify the porting of Compaq's userland tools.
4576 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4578 struct ciss_softc *sc;
4579 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4581 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4582 IOCTL_Command_struct ioc_swab;
4588 sc = (struct ciss_softc *)dev->si_drv1;
4590 mtx_lock(&sc->ciss_mtx);
4593 case CCISS_GETQSTATS:
4595 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4597 switch (cr->cs_item) {
4600 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4601 sizeof(struct ciss_qstat));
4611 case CCISS_GETPCIINFO:
4613 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4615 pis->bus = pci_get_bus(sc->ciss_dev);
4616 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4617 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4618 pci_get_subdevice(sc->ciss_dev);
4623 case CCISS_GETINTINFO:
4625 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4627 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4628 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4633 case CCISS_SETINTINFO:
4635 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4637 if ((cis->delay == 0) && (cis->count == 0)) {
4643 * XXX apparently this is only safe if the controller is idle,
4644 * we should suspend it before doing this.
4646 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4647 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4649 if (ciss_update_config(sc))
4652 /* XXX resume the controller here */
4656 case CCISS_GETNODENAME:
4657 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4658 sizeof(NodeName_type));
4661 case CCISS_SETNODENAME:
4662 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4663 sizeof(NodeName_type));
4664 if (ciss_update_config(sc))
4668 case CCISS_GETHEARTBEAT:
4669 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4672 case CCISS_GETBUSTYPES:
4673 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4676 case CCISS_GETFIRMVER:
4677 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4678 sizeof(FirmwareVer_type));
4681 case CCISS_GETDRIVERVER:
4682 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4685 case CCISS_REVALIDVOLS:
4687 * This is a bit ugly; to do it "right" we really need
4688 * to find any disks that have changed, kick CAM off them,
4689 * then rescan only these disks. It'd be nice if they
4690 * a) told us which disk(s) they were going to play with,
4691 * and b) which ones had arrived. 8(
4696 case CCISS_PASSTHRU32:
4697 ioc_swab.LUN_info = ioc32->LUN_info;
4698 ioc_swab.Request = ioc32->Request;
4699 ioc_swab.error_info = ioc32->error_info;
4700 ioc_swab.buf_size = ioc32->buf_size;
4701 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4706 case CCISS_PASSTHRU:
4707 error = ciss_user_command(sc, ioc);
4711 debug(0, "unknown ioctl 0x%lx", cmd);
4713 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4714 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4715 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4716 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4717 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4718 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4719 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4720 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4721 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4722 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4723 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4729 mtx_unlock(&sc->ciss_mtx);