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 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers");
111 static int ciss_lookup(device_t dev);
112 static int ciss_probe(device_t dev);
113 static int ciss_attach(device_t dev);
114 static int ciss_detach(device_t dev);
115 static int ciss_shutdown(device_t dev);
117 /* (de)initialisation functions, control wrappers */
118 static int ciss_init_pci(struct ciss_softc *sc);
119 static int ciss_setup_msix(struct ciss_softc *sc);
120 static int ciss_init_perf(struct ciss_softc *sc);
121 static int ciss_wait_adapter(struct ciss_softc *sc);
122 static int ciss_flush_adapter(struct ciss_softc *sc);
123 static int ciss_init_requests(struct ciss_softc *sc);
124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
125 int nseg, int error);
126 static int ciss_identify_adapter(struct ciss_softc *sc);
127 static int ciss_init_logical(struct ciss_softc *sc);
128 static int ciss_init_physical(struct ciss_softc *sc);
129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll);
130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
132 static int ciss_update_config(struct ciss_softc *sc);
133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld);
134 static void ciss_init_sysctl(struct ciss_softc *sc);
135 static void ciss_soft_reset(struct ciss_softc *sc);
136 static void ciss_free(struct ciss_softc *sc);
137 static void ciss_spawn_notify_thread(struct ciss_softc *sc);
138 static void ciss_kill_notify_thread(struct ciss_softc *sc);
140 /* request submission/completion */
141 static int ciss_start(struct ciss_request *cr);
142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh);
143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh);
144 static void ciss_intr(void *arg);
145 static void ciss_perf_intr(void *arg);
146 static void ciss_perf_msi_intr(void *arg);
147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh);
148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func);
149 static int ciss_synch_request(struct ciss_request *cr, int timeout);
150 static int ciss_poll_request(struct ciss_request *cr, int timeout);
151 static int ciss_wait_request(struct ciss_request *cr, int timeout);
153 static int ciss_abort_request(struct ciss_request *cr);
156 /* request queueing */
157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
158 static void ciss_preen_command(struct ciss_request *cr);
159 static void ciss_release_request(struct ciss_request *cr);
161 /* request helpers */
162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
163 int opcode, void **bufp, size_t bufsize);
164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
167 static int ciss_map_request(struct ciss_request *cr);
168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
169 int nseg, int error);
170 static void ciss_unmap_request(struct ciss_request *cr);
173 static int ciss_cam_init(struct ciss_softc *sc);
174 static void ciss_cam_rescan_target(struct ciss_softc *sc,
175 int bus, int target);
176 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
177 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
178 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
179 static void ciss_cam_poll(struct cam_sim *sim);
180 static void ciss_cam_complete(struct ciss_request *cr);
181 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
182 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc,
183 int bus, int target);
184 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
186 /* periodic status monitoring */
187 static void ciss_periodic(void *arg);
188 static void ciss_nop_complete(struct ciss_request *cr);
189 static void ciss_disable_adapter(struct ciss_softc *sc);
190 static void ciss_notify_event(struct ciss_softc *sc);
191 static void ciss_notify_complete(struct ciss_request *cr);
192 static int ciss_notify_abort(struct ciss_softc *sc);
193 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
194 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
195 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
196 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
198 /* debugging output */
199 static void ciss_print_request(struct ciss_request *cr);
200 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
201 static const char *ciss_name_ldrive_status(int status);
202 static int ciss_decode_ldrive_status(int status);
203 static const char *ciss_name_ldrive_org(int org);
204 static const char *ciss_name_command_status(int status);
209 static device_method_t ciss_methods[] = {
210 /* Device interface */
211 DEVMETHOD(device_probe, ciss_probe),
212 DEVMETHOD(device_attach, ciss_attach),
213 DEVMETHOD(device_detach, ciss_detach),
214 DEVMETHOD(device_shutdown, ciss_shutdown),
218 static driver_t ciss_pci_driver = {
221 sizeof(struct ciss_softc)
224 static devclass_t ciss_devclass;
225 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
226 MODULE_DEPEND(ciss, cam, 1, 1, 1);
227 MODULE_DEPEND(ciss, pci, 1, 1, 1);
230 * Control device interface.
232 static d_open_t ciss_open;
233 static d_close_t ciss_close;
234 static d_ioctl_t ciss_ioctl;
236 static struct cdevsw ciss_cdevsw = {
237 .d_version = D_VERSION,
240 .d_close = ciss_close,
241 .d_ioctl = ciss_ioctl,
246 * This tunable can be set at boot time and controls whether physical devices
247 * that are marked hidden by the firmware should be exposed anyways.
249 static unsigned int ciss_expose_hidden_physical = 0;
250 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
252 static unsigned int ciss_nop_message_heartbeat = 0;
253 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
256 * This tunable can force a particular transport to be used:
259 * 2 : force performant
261 static int ciss_force_transport = 0;
262 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
265 * This tunable can force a particular interrupt delivery method to be used:
270 static int ciss_force_interrupt = 0;
271 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
273 /************************************************************************
274 * CISS adapters amazingly don't have a defined programming interface
275 * value. (One could say some very despairing things about PCI and
276 * people just not getting the general idea.) So we are forced to
277 * stick with matching against subvendor/subdevice, and thus have to
278 * be updated for every new CISS adapter that appears.
280 #define CISS_BOARD_UNKNWON 0
281 #define CISS_BOARD_SA5 1
282 #define CISS_BOARD_SA5B 2
283 #define CISS_BOARD_NOMSI (1<<4)
284 #define CISS_BOARD_SIMPLE (1<<5)
292 } ciss_vendor_data[] = {
293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE,
294 "Compaq Smart Array 5300" },
295 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
296 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
297 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
298 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
299 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
300 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
301 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
302 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
303 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
304 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
305 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
306 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
308 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
309 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
310 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
311 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
312 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
313 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
314 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
316 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
317 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
318 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
319 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
320 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
321 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
325 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
326 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
327 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
328 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
329 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
330 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
331 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
332 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
333 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
334 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
335 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
336 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
337 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
338 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
339 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
340 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" },
341 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" },
342 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" },
343 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" },
344 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" },
345 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" },
346 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" },
347 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" },
348 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" },
352 /************************************************************************
353 * Find a match for the device in our list of known adapters.
356 ciss_lookup(device_t dev)
360 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
361 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
362 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
368 /************************************************************************
369 * Match a known CISS adapter.
372 ciss_probe(device_t dev)
376 i = ciss_lookup(dev);
378 device_set_desc(dev, ciss_vendor_data[i].desc);
379 return(BUS_PROBE_DEFAULT);
384 /************************************************************************
385 * Attach the driver to this adapter.
388 ciss_attach(device_t dev)
390 struct ciss_softc *sc;
396 /* print structure/union sizes */
397 debug_struct(ciss_command);
398 debug_struct(ciss_header);
399 debug_union(ciss_device_address);
400 debug_struct(ciss_cdb);
401 debug_struct(ciss_report_cdb);
402 debug_struct(ciss_notify_cdb);
403 debug_struct(ciss_notify);
404 debug_struct(ciss_message_cdb);
405 debug_struct(ciss_error_info_pointer);
406 debug_struct(ciss_error_info);
407 debug_struct(ciss_sg_entry);
408 debug_struct(ciss_config_table);
409 debug_struct(ciss_bmic_cdb);
410 debug_struct(ciss_bmic_id_ldrive);
411 debug_struct(ciss_bmic_id_lstatus);
412 debug_struct(ciss_bmic_id_table);
413 debug_struct(ciss_bmic_id_pdrive);
414 debug_struct(ciss_bmic_blink_pdrive);
415 debug_struct(ciss_bmic_flush_cache);
416 debug_const(CISS_MAX_REQUESTS);
417 debug_const(CISS_MAX_LOGICAL);
418 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
419 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
420 debug_const(CISS_COMMAND_ALLOC_SIZE);
421 debug_const(CISS_COMMAND_SG_LENGTH);
423 debug_type(cciss_pci_info_struct);
424 debug_type(cciss_coalint_struct);
425 debug_type(cciss_coalint_struct);
426 debug_type(NodeName_type);
427 debug_type(NodeName_type);
428 debug_type(Heartbeat_type);
429 debug_type(BusTypes_type);
430 debug_type(FirmwareVer_type);
431 debug_type(DriverVer_type);
432 debug_type(IOCTL_Command_struct);
435 sc = device_get_softc(dev);
437 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF);
438 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0);
441 * Do PCI-specific init.
443 if ((error = ciss_init_pci(sc)) != 0)
447 * Initialise driver queues.
450 ciss_initq_notify(sc);
453 * Initalize device sysctls.
455 ciss_init_sysctl(sc);
458 * Initialise command/request pool.
460 if ((error = ciss_init_requests(sc)) != 0)
464 * Get adapter information.
466 if ((error = ciss_identify_adapter(sc)) != 0)
470 * Find all the physical devices.
472 if ((error = ciss_init_physical(sc)) != 0)
476 * Build our private table of logical devices.
478 if ((error = ciss_init_logical(sc)) != 0)
482 * Enable interrupts so that the CAM scan can complete.
484 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
487 * Initialise the CAM interface.
489 if ((error = ciss_cam_init(sc)) != 0)
493 * Start the heartbeat routine and event chain.
498 * Create the control device.
500 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
501 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
502 "ciss%d", device_get_unit(sc->ciss_dev));
503 sc->ciss_dev_t->si_drv1 = sc;
506 * The adapter is running; synchronous commands can now sleep
507 * waiting for an interrupt to signal completion.
509 sc->ciss_flags |= CISS_FLAG_RUNNING;
511 ciss_spawn_notify_thread(sc);
516 /* ciss_free() expects the mutex to be held */
517 mtx_lock(&sc->ciss_mtx);
523 /************************************************************************
524 * Detach the driver from this adapter.
527 ciss_detach(device_t dev)
529 struct ciss_softc *sc = device_get_softc(dev);
533 mtx_lock(&sc->ciss_mtx);
534 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
535 mtx_unlock(&sc->ciss_mtx);
539 /* flush adapter cache */
540 ciss_flush_adapter(sc);
542 /* release all resources. The mutex is released and freed here too. */
548 /************************************************************************
549 * Prepare adapter for system shutdown.
552 ciss_shutdown(device_t dev)
554 struct ciss_softc *sc = device_get_softc(dev);
558 mtx_lock(&sc->ciss_mtx);
559 /* flush adapter cache */
560 ciss_flush_adapter(sc);
562 if (sc->ciss_soft_reset)
564 mtx_unlock(&sc->ciss_mtx);
570 ciss_init_sysctl(struct ciss_softc *sc)
573 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
574 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
575 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
578 /************************************************************************
579 * Perform PCI-specific attachment actions.
582 ciss_init_pci(struct ciss_softc *sc)
584 uintptr_t cbase, csize, cofs;
585 uint32_t method, supported_methods;
586 int error, sqmask, i;
592 * Work out adapter type.
594 i = ciss_lookup(sc->ciss_dev);
596 ciss_printf(sc, "unknown adapter type\n");
600 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
601 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
602 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
603 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
606 * XXX Big hammer, masks/unmasks all possible interrupts. This should
607 * work on all hardware variants. Need to add code to handle the
608 * "controller crashed" interupt bit that this unmasks.
614 * Allocate register window first (we need this to find the config
618 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
619 if ((sc->ciss_regs_resource =
620 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
621 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
622 ciss_printf(sc, "can't allocate register window\n");
625 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
626 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
629 * Find the BAR holding the config structure. If it's not the one
630 * we already mapped for registers, map it too.
632 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
633 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
634 if ((sc->ciss_cfg_resource =
635 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
636 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
637 ciss_printf(sc, "can't allocate config window\n");
640 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
641 csize = rman_get_end(sc->ciss_cfg_resource) -
642 rman_get_start(sc->ciss_cfg_resource) + 1;
644 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
645 csize = rman_get_end(sc->ciss_regs_resource) -
646 rman_get_start(sc->ciss_regs_resource) + 1;
648 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
651 * Use the base/size/offset values we just calculated to
652 * sanity-check the config structure. If it's OK, point to it.
654 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
655 ciss_printf(sc, "config table outside window\n");
658 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
659 debug(1, "config struct at %p", sc->ciss_cfg);
662 * Calculate the number of request structures/commands we are
663 * going to provide for this adapter.
665 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
668 * Validate the config structure. If we supported other transport
669 * methods, we could select amongst them at this point in time.
671 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
672 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
673 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
674 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
679 * Select the mode of operation, prefer Performant.
681 if (!(sc->ciss_cfg->supported_methods &
682 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
683 ciss_printf(sc, "No supported transport layers: 0x%x\n",
684 sc->ciss_cfg->supported_methods);
687 switch (ciss_force_transport) {
689 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
692 supported_methods = CISS_TRANSPORT_METHOD_PERF;
696 * Override the capabilities of the BOARD and specify SIMPLE
699 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE)
700 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
702 supported_methods = sc->ciss_cfg->supported_methods;
707 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
708 method = CISS_TRANSPORT_METHOD_PERF;
709 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
710 sc->ciss_cfg->transport_offset);
711 if (ciss_init_perf(sc)) {
712 supported_methods &= ~method;
715 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
716 method = CISS_TRANSPORT_METHOD_SIMPLE;
718 ciss_printf(sc, "No supported transport methods: 0x%x\n",
719 sc->ciss_cfg->supported_methods);
724 * Tell it we're using the low 4GB of RAM. Set the default interrupt
725 * coalescing options.
727 sc->ciss_cfg->requested_method = method;
728 sc->ciss_cfg->command_physlimit = 0;
729 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
730 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
733 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH;
736 if (ciss_update_config(sc)) {
737 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
738 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
741 if ((sc->ciss_cfg->active_method & method) == 0) {
742 supported_methods &= ~method;
743 if (supported_methods == 0) {
744 ciss_printf(sc, "adapter refuses to go into available transports "
745 "mode (0x%x, 0x%x)\n", supported_methods,
746 sc->ciss_cfg->active_method);
753 * Wait for the adapter to come ready.
755 if ((error = ciss_wait_adapter(sc)) != 0)
758 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
759 * interrupts have a rid of 0, this will be overridden if MSIX is used.
761 sc->ciss_irq_rid[0] = 0;
762 if (method == CISS_TRANSPORT_METHOD_PERF) {
763 ciss_printf(sc, "PERFORMANT Transport\n");
764 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
765 intr = ciss_perf_msi_intr;
767 intr = ciss_perf_intr;
769 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
770 * Unfortunately, there is no good way to know if this is a SAS
771 * controller. Hopefully enabling this bit universally will work OK.
772 * It seems to work fine for SA6i controllers.
774 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
777 ciss_printf(sc, "SIMPLE Transport\n");
778 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
779 if (ciss_force_interrupt == 2)
780 /* If this fails, we automatically revert to INTx */
782 sc->ciss_perf = NULL;
784 sc->ciss_interrupt_mask = sqmask;
788 * Turn off interrupts before we go routing anything.
790 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
793 * Allocate and set up our interrupt.
795 if ((sc->ciss_irq_resource =
796 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
797 RF_ACTIVE | RF_SHAREABLE)) == NULL) {
798 ciss_printf(sc, "can't allocate interrupt\n");
802 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
803 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc,
805 ciss_printf(sc, "can't set up interrupt\n");
810 * Allocate the parent bus DMA tag appropriate for our PCI
813 * Note that "simple" adapters can only address within a 32-bit
816 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
817 1, 0, /* alignment, boundary */
818 BUS_SPACE_MAXADDR, /* lowaddr */
819 BUS_SPACE_MAXADDR, /* highaddr */
820 NULL, NULL, /* filter, filterarg */
821 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
822 CISS_MAX_SG_ELEMENTS, /* nsegments */
823 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
825 NULL, NULL, /* lockfunc, lockarg */
826 &sc->ciss_parent_dmat)) {
827 ciss_printf(sc, "can't allocate parent DMA tag\n");
832 * Create DMA tag for mapping buffers into adapter-addressable
835 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
836 1, 0, /* alignment, boundary */
837 BUS_SPACE_MAXADDR, /* lowaddr */
838 BUS_SPACE_MAXADDR, /* highaddr */
839 NULL, NULL, /* filter, filterarg */
840 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */
841 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
842 BUS_DMA_ALLOCNOW, /* flags */
843 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */
844 &sc->ciss_buffer_dmat)) {
845 ciss_printf(sc, "can't allocate buffer DMA tag\n");
851 /************************************************************************
852 * Setup MSI/MSIX operation (Performant only)
853 * Four interrupts are available, but we only use 1 right now. If MSI-X
854 * isn't avaialble, try using MSI instead.
857 ciss_setup_msix(struct ciss_softc *sc)
861 /* Weed out devices that don't actually support MSI */
862 i = ciss_lookup(sc->ciss_dev);
863 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
867 * Only need to use the minimum number of MSI vectors, as the driver
868 * doesn't support directed MSIX interrupts.
870 val = pci_msix_count(sc->ciss_dev);
871 if (val < CISS_MSI_COUNT) {
872 val = pci_msi_count(sc->ciss_dev);
873 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
874 if (val < CISS_MSI_COUNT)
877 val = MIN(val, CISS_MSI_COUNT);
878 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
879 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
885 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
886 (val != 1) ? "s" : "");
888 for (i = 0; i < val; i++)
889 sc->ciss_irq_rid[i] = i + 1;
895 /************************************************************************
896 * Setup the Performant structures.
899 ciss_init_perf(struct ciss_softc *sc)
901 struct ciss_perf_config *pc = sc->ciss_perf;
905 * Create the DMA tag for the reply queue.
907 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
908 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
909 1, 0, /* alignment, boundary */
910 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
911 BUS_SPACE_MAXADDR, /* highaddr */
912 NULL, NULL, /* filter, filterarg */
913 reply_size, 1, /* maxsize, nsegments */
914 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
916 NULL, NULL, /* lockfunc, lockarg */
917 &sc->ciss_reply_dmat)) {
918 ciss_printf(sc, "can't allocate reply DMA tag\n");
922 * Allocate memory and make it available for DMA.
924 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
925 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
926 ciss_printf(sc, "can't allocate reply memory\n");
929 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
930 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
931 bzero(sc->ciss_reply, reply_size);
933 sc->ciss_cycle = 0x1;
937 * Preload the fetch table with common command sizes. This allows the
938 * hardware to not waste bus cycles for typical i/o commands, but also not
939 * tax the driver to be too exact in choosing sizes. The table is optimized
940 * for page-aligned i/o's, but since most i/o comes from the various pagers,
941 * it's a reasonable assumption to make.
943 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
944 pc->fetch_count[CISS_SG_FETCH_1] =
945 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
946 pc->fetch_count[CISS_SG_FETCH_2] =
947 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
948 pc->fetch_count[CISS_SG_FETCH_4] =
949 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
950 pc->fetch_count[CISS_SG_FETCH_8] =
951 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
952 pc->fetch_count[CISS_SG_FETCH_16] =
953 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
954 pc->fetch_count[CISS_SG_FETCH_32] =
955 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
956 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
958 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
959 pc->rq_count = 1; /* XXX Hardcode for a single queue */
962 pc->rq[0].rq_addr_hi = 0x0;
963 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
968 /************************************************************************
969 * Wait for the adapter to come ready.
972 ciss_wait_adapter(struct ciss_softc *sc)
979 * Wait for the adapter to come ready.
981 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
982 ciss_printf(sc, "waiting for adapter to come ready...\n");
983 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
984 DELAY(1000000); /* one second */
986 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
994 /************************************************************************
995 * Flush the adapter cache.
998 ciss_flush_adapter(struct ciss_softc *sc)
1000 struct ciss_request *cr;
1001 struct ciss_bmic_flush_cache *cbfc;
1002 int error, command_status;
1010 * Build a BMIC request to flush the cache. We don't disable
1011 * it, as we may be going to do more I/O (eg. we are emulating
1012 * the Synchronise Cache command).
1014 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1018 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1019 (void **)&cbfc, sizeof(*cbfc))) != 0)
1023 * Submit the request and wait for it to complete.
1025 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1026 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1033 ciss_report_request(cr, &command_status, NULL);
1034 switch(command_status) {
1035 case CISS_CMD_STATUS_SUCCESS:
1038 ciss_printf(sc, "error flushing cache (%s)\n",
1039 ciss_name_command_status(command_status));
1046 free(cbfc, CISS_MALLOC_CLASS);
1048 ciss_release_request(cr);
1053 ciss_soft_reset(struct ciss_softc *sc)
1055 struct ciss_request *cr = NULL;
1056 struct ciss_command *cc;
1059 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1060 /* only reset proxy controllers */
1061 if (sc->ciss_controllers[i].physical.bus == 0)
1064 if ((error = ciss_get_request(sc, &cr)) != 0)
1067 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1072 cc->header.address = sc->ciss_controllers[i];
1074 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1077 ciss_release_request(cr);
1081 ciss_printf(sc, "error resetting controller (%d)\n", error);
1084 ciss_release_request(cr);
1087 /************************************************************************
1088 * Allocate memory for the adapter command structures, initialise
1089 * the request structures.
1091 * Note that the entire set of commands are allocated in a single
1095 ciss_init_requests(struct ciss_softc *sc)
1097 struct ciss_request *cr;
1103 ciss_printf(sc, "using %d of %d available commands\n",
1104 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1107 * Create the DMA tag for commands.
1109 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1110 32, 0, /* alignment, boundary */
1111 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1112 BUS_SPACE_MAXADDR, /* highaddr */
1113 NULL, NULL, /* filter, filterarg */
1114 CISS_COMMAND_ALLOC_SIZE *
1115 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1116 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1118 NULL, NULL, /* lockfunc, lockarg */
1119 &sc->ciss_command_dmat)) {
1120 ciss_printf(sc, "can't allocate command DMA tag\n");
1124 * Allocate memory and make it available for DMA.
1126 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1127 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1128 ciss_printf(sc, "can't allocate command memory\n");
1131 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1132 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1133 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1134 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1137 * Set up the request and command structures, push requests onto
1140 for (i = 1; i < sc->ciss_max_requests; i++) {
1141 cr = &sc->ciss_request[i];
1144 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1145 CISS_COMMAND_ALLOC_SIZE * i);
1146 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1147 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1148 ciss_enqueue_free(cr);
1154 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1159 *addr = segs[0].ds_addr;
1162 /************************************************************************
1163 * Identify the adapter, print some information about it.
1166 ciss_identify_adapter(struct ciss_softc *sc)
1168 struct ciss_request *cr;
1169 int error, command_status;
1176 * Get a request, allocate storage for the adapter data.
1178 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1179 (void **)&sc->ciss_id,
1180 sizeof(*sc->ciss_id))) != 0)
1184 * Submit the request and wait for it to complete.
1186 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1187 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1194 ciss_report_request(cr, &command_status, NULL);
1195 switch(command_status) {
1196 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1198 case CISS_CMD_STATUS_DATA_UNDERRUN:
1199 case CISS_CMD_STATUS_DATA_OVERRUN:
1200 ciss_printf(sc, "data over/underrun reading adapter information\n");
1202 ciss_printf(sc, "error reading adapter information (%s)\n",
1203 ciss_name_command_status(command_status));
1208 /* sanity-check reply */
1209 if (!sc->ciss_id->big_map_supported) {
1210 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1216 /* XXX later revisions may not need this */
1217 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1220 /* XXX only really required for old 5300 adapters? */
1221 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1224 * Earlier controller specs do not contain these config
1225 * entries, so assume that a 0 means its old and assign
1226 * these values to the defaults that were established
1227 * when this driver was developed for them
1229 if (sc->ciss_cfg->max_logical_supported == 0)
1230 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL;
1231 if (sc->ciss_cfg->max_physical_supported == 0)
1232 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL;
1233 /* print information */
1235 ciss_printf(sc, " %d logical drive%s configured\n",
1236 sc->ciss_id->configured_logical_drives,
1237 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1238 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1239 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
1241 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1242 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1243 ciss_printf(sc, " supported I/O methods 0x%b\n",
1244 sc->ciss_cfg->supported_methods,
1245 "\20\1READY\2simple\3performant\4MEMQ\n");
1246 ciss_printf(sc, " active I/O method 0x%b\n",
1247 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1248 ciss_printf(sc, " 4G page base 0x%08x\n",
1249 sc->ciss_cfg->command_physlimit);
1250 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1251 sc->ciss_cfg->interrupt_coalesce_delay);
1252 ciss_printf(sc, " interrupt coalesce count %d\n",
1253 sc->ciss_cfg->interrupt_coalesce_count);
1254 ciss_printf(sc, " max outstanding commands %d\n",
1255 sc->ciss_cfg->max_outstanding_commands);
1256 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1257 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1258 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1259 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1260 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported);
1261 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported);
1262 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical);
1267 if (sc->ciss_id != NULL) {
1268 free(sc->ciss_id, CISS_MALLOC_CLASS);
1273 ciss_release_request(cr);
1277 /************************************************************************
1278 * Helper routine for generating a list of logical and physical luns.
1280 static struct ciss_lun_report *
1281 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1283 struct ciss_request *cr;
1284 struct ciss_command *cc;
1285 struct ciss_report_cdb *crc;
1286 struct ciss_lun_report *cll;
1297 * Get a request, allocate storage for the address list.
1299 if ((error = ciss_get_request(sc, &cr)) != 0)
1301 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1302 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
1303 ciss_printf(sc, "can't allocate memory for lun report\n");
1309 * Build the Report Logical/Physical LUNs command.
1313 cr->cr_length = report_size;
1314 cr->cr_flags = CISS_REQ_DATAIN;
1316 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1317 cc->header.address.physical.bus = 0;
1318 cc->header.address.physical.target = 0;
1319 cc->cdb.cdb_length = sizeof(*crc);
1320 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1321 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1322 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1323 cc->cdb.timeout = 30; /* XXX better suggestions? */
1325 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1326 bzero(crc, sizeof(*crc));
1327 crc->opcode = opcode;
1328 crc->length = htonl(report_size); /* big-endian field */
1329 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1332 * Submit the request and wait for it to complete. (timeout
1333 * here should be much greater than above)
1335 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1336 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1341 * Check response. Note that data over/underrun is OK.
1343 ciss_report_request(cr, &command_status, NULL);
1344 switch(command_status) {
1345 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1346 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1348 case CISS_CMD_STATUS_DATA_OVERRUN:
1349 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1350 sc->ciss_cfg->max_logical_supported);
1353 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1354 ciss_name_command_status(command_status));
1358 ciss_release_request(cr);
1363 ciss_release_request(cr);
1364 if (error && cll != NULL) {
1365 free(cll, CISS_MALLOC_CLASS);
1371 /************************************************************************
1372 * Find logical drives on the adapter.
1375 ciss_init_logical(struct ciss_softc *sc)
1377 struct ciss_lun_report *cll;
1378 int error = 0, i, j;
1383 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1384 sc->ciss_cfg->max_logical_supported);
1390 /* sanity-check reply */
1391 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1392 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) {
1393 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1394 ndrives, sc->ciss_cfg->max_logical_supported);
1400 * Save logical drive information.
1403 ciss_printf(sc, "%d logical drive%s\n",
1404 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1408 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1409 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1410 if (sc->ciss_logical == NULL) {
1415 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
1416 sc->ciss_logical[i] =
1417 malloc(sc->ciss_cfg->max_logical_supported *
1418 sizeof(struct ciss_ldrive),
1419 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1420 if (sc->ciss_logical[i] == NULL) {
1425 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++)
1426 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1430 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) {
1432 struct ciss_ldrive *ld;
1435 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1436 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1437 ld = &sc->ciss_logical[bus][target];
1439 ld->cl_address = cll->lun[i];
1440 ld->cl_controller = &sc->ciss_controllers[bus];
1441 if (ciss_identify_logical(sc, ld) != 0)
1444 * If the drive has had media exchanged, we should bring it online.
1446 if (ld->cl_lstatus->media_exchanged)
1447 ciss_accept_media(sc, ld);
1454 free(cll, CISS_MALLOC_CLASS);
1459 ciss_init_physical(struct ciss_softc *sc)
1461 struct ciss_lun_report *cll;
1471 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1472 sc->ciss_cfg->max_physical_supported);
1478 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1481 ciss_printf(sc, "%d physical device%s\n",
1482 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1486 * Figure out the bus mapping.
1487 * Logical buses include both the local logical bus for local arrays and
1488 * proxy buses for remote arrays. Physical buses are numbered by the
1489 * controller and represent physical buses that hold physical devices.
1490 * We shift these bus numbers so that everything fits into a single flat
1491 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1492 * numbers, and the physical bus numbers are shifted to be above that.
1493 * This results in the various driver arrays being indexed as follows:
1495 * ciss_controllers[] - indexed by logical bus
1496 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1497 * being shifted by 32.
1498 * ciss_logical[][] - indexed by logical bus
1499 * ciss_physical[][] - indexed by physical bus
1501 * XXX This is getting more and more hackish. CISS really doesn't play
1502 * well with a standard SCSI model; devices are addressed via magic
1503 * cookies, not via b/t/l addresses. Since there is no way to store
1504 * the cookie in the CAM device object, we have to keep these lookup
1505 * tables handy so that the devices can be found quickly at the cost
1506 * of wasting memory and having a convoluted lookup scheme. This
1507 * driver should probably be converted to block interface.
1510 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1511 * controller. A proxy controller is another physical controller
1512 * behind the primary PCI controller. We need to know about this
1513 * so that BMIC commands can be properly targeted. There can be
1514 * proxy controllers attached to a single PCI controller, so
1515 * find the highest numbered one so the array can be properly
1518 sc->ciss_max_logical_bus = 1;
1519 for (i = 0; i < nphys; i++) {
1520 if (cll->lun[i].physical.extra_address == 0) {
1521 bus = cll->lun[i].physical.bus;
1522 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1524 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1525 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1529 sc->ciss_controllers =
1530 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1531 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1533 if (sc->ciss_controllers == NULL) {
1534 ciss_printf(sc, "Could not allocate memory for controller map\n");
1539 /* setup a map of controller addresses */
1540 for (i = 0; i < nphys; i++) {
1541 if (cll->lun[i].physical.extra_address == 0) {
1542 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1547 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1548 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1549 if (sc->ciss_physical == NULL) {
1550 ciss_printf(sc, "Could not allocate memory for physical device map\n");
1555 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1556 sc->ciss_physical[i] =
1557 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1558 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
1559 if (sc->ciss_physical[i] == NULL) {
1560 ciss_printf(sc, "Could not allocate memory for target map\n");
1566 ciss_filter_physical(sc, cll);
1570 free(cll, CISS_MALLOC_CLASS);
1576 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1582 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1583 for (i = 0; i < nphys; i++) {
1584 if (cll->lun[i].physical.extra_address == 0)
1588 * Filter out devices that we don't want. Level 3 LUNs could
1589 * probably be supported, but the docs don't give enough of a
1592 * The mode field of the physical address is likely set to have
1593 * hard disks masked out. Honor it unless the user has overridden
1594 * us with the tunable. We also munge the inquiry data for these
1595 * disks so that they only show up as passthrough devices. Keeping
1596 * them visible in this fashion is useful for doing things like
1597 * flashing firmware.
1599 ea = cll->lun[i].physical.extra_address;
1600 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1601 (CISS_EXTRA_MODE2(ea) == 0x3))
1603 if ((ciss_expose_hidden_physical == 0) &&
1604 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1608 * Note: CISS firmware numbers physical busses starting at '1', not
1609 * '0'. This numbering is internal to the firmware and is only
1610 * used as a hint here.
1612 bus = CISS_EXTRA_BUS2(ea) - 1;
1613 target = CISS_EXTRA_TARGET2(ea);
1614 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1615 sc->ciss_physical[bus][target].cp_online = 1;
1622 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1624 struct ciss_request *cr;
1625 struct ciss_command *cc;
1626 struct scsi_inquiry *inq;
1632 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1634 if ((error = ciss_get_request(sc, &cr)) != 0)
1638 cr->cr_data = &ld->cl_geometry;
1639 cr->cr_length = sizeof(ld->cl_geometry);
1640 cr->cr_flags = CISS_REQ_DATAIN;
1642 cc->header.address = ld->cl_address;
1643 cc->cdb.cdb_length = 6;
1644 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1645 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1646 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1647 cc->cdb.timeout = 30;
1649 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1650 inq->opcode = INQUIRY;
1651 inq->byte2 = SI_EVPD;
1652 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1653 inq->length = sizeof(ld->cl_geometry);
1655 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1656 ciss_printf(sc, "error getting geometry (%d)\n", error);
1660 ciss_report_request(cr, &command_status, NULL);
1661 switch(command_status) {
1662 case CISS_CMD_STATUS_SUCCESS:
1663 case CISS_CMD_STATUS_DATA_UNDERRUN:
1665 case CISS_CMD_STATUS_DATA_OVERRUN:
1666 ciss_printf(sc, "WARNING: Data overrun\n");
1669 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1670 ciss_name_command_status(command_status));
1676 ciss_release_request(cr);
1679 /************************************************************************
1680 * Identify a logical drive, initialise state related to it.
1683 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1685 struct ciss_request *cr;
1686 struct ciss_command *cc;
1687 struct ciss_bmic_cdb *cbc;
1688 int error, command_status;
1695 * Build a BMIC request to fetch the drive ID.
1697 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1698 (void **)&ld->cl_ldrive,
1699 sizeof(*ld->cl_ldrive))) != 0)
1702 cc->header.address = *ld->cl_controller; /* target controller */
1703 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1704 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1707 * Submit the request and wait for it to complete.
1709 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1710 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1717 ciss_report_request(cr, &command_status, NULL);
1718 switch(command_status) {
1719 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1721 case CISS_CMD_STATUS_DATA_UNDERRUN:
1722 case CISS_CMD_STATUS_DATA_OVERRUN:
1723 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1725 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1726 ciss_name_command_status(command_status));
1730 ciss_release_request(cr);
1734 * Build a CISS BMIC command to get the logical drive status.
1736 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1740 * Get the logical drive geometry.
1742 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1746 * Print the drive's basic characteristics.
1749 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1750 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1751 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1752 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1753 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1754 ld->cl_ldrive->block_size));
1756 ciss_print_ldrive(sc, ld);
1760 /* make the drive not-exist */
1761 ld->cl_status = CISS_LD_NONEXISTENT;
1762 if (ld->cl_ldrive != NULL) {
1763 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
1764 ld->cl_ldrive = NULL;
1766 if (ld->cl_lstatus != NULL) {
1767 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
1768 ld->cl_lstatus = NULL;
1772 ciss_release_request(cr);
1777 /************************************************************************
1778 * Get status for a logical drive.
1780 * XXX should we also do this in response to Test Unit Ready?
1783 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1785 struct ciss_request *cr;
1786 struct ciss_command *cc;
1787 struct ciss_bmic_cdb *cbc;
1788 int error, command_status;
1791 * Build a CISS BMIC command to get the logical drive status.
1793 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1794 (void **)&ld->cl_lstatus,
1795 sizeof(*ld->cl_lstatus))) != 0)
1798 cc->header.address = *ld->cl_controller; /* target controller */
1799 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1800 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1803 * Submit the request and wait for it to complete.
1805 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1806 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1813 ciss_report_request(cr, &command_status, NULL);
1814 switch(command_status) {
1815 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1817 case CISS_CMD_STATUS_DATA_UNDERRUN:
1818 case CISS_CMD_STATUS_DATA_OVERRUN:
1819 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1821 ciss_printf(sc, "error reading logical drive status (%s)\n",
1822 ciss_name_command_status(command_status));
1828 * Set the drive's summary status based on the returned status.
1830 * XXX testing shows that a failed JBOD drive comes back at next
1831 * boot in "queued for expansion" mode. WTF?
1833 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1837 ciss_release_request(cr);
1841 /************************************************************************
1842 * Notify the adapter of a config update.
1845 ciss_update_config(struct ciss_softc *sc)
1851 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1852 for (i = 0; i < 1000; i++) {
1853 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1854 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1862 /************************************************************************
1863 * Accept new media into a logical drive.
1865 * XXX The drive has previously been offline; it would be good if we
1866 * could make sure it's not open right now.
1869 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1871 struct ciss_request *cr;
1872 struct ciss_command *cc;
1873 struct ciss_bmic_cdb *cbc;
1875 int error = 0, ldrive;
1877 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1879 debug(0, "bringing logical drive %d back online");
1882 * Build a CISS BMIC command to bring the drive back online.
1884 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1888 cc->header.address = *ld->cl_controller; /* target controller */
1889 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1890 cbc->log_drive = ldrive;
1893 * Submit the request and wait for it to complete.
1895 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1896 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1903 ciss_report_request(cr, &command_status, NULL);
1904 switch(command_status) {
1905 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1906 /* we should get a logical drive status changed event here */
1909 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1910 ciss_name_command_status(command_status));
1916 ciss_release_request(cr);
1920 /************************************************************************
1921 * Release adapter resources.
1924 ciss_free(struct ciss_softc *sc)
1926 struct ciss_request *cr;
1931 /* we're going away */
1932 sc->ciss_flags |= CISS_FLAG_ABORTING;
1934 /* terminate the periodic heartbeat routine */
1935 callout_stop(&sc->ciss_periodic);
1937 /* cancel the Event Notify chain */
1938 ciss_notify_abort(sc);
1940 ciss_kill_notify_thread(sc);
1942 /* disconnect from CAM */
1943 if (sc->ciss_cam_sim) {
1944 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1945 if (sc->ciss_cam_sim[i]) {
1946 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1947 cam_sim_free(sc->ciss_cam_sim[i], 0);
1950 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1951 CISS_PHYSICAL_BASE; i++) {
1952 if (sc->ciss_cam_sim[i]) {
1953 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1954 cam_sim_free(sc->ciss_cam_sim[i], 0);
1957 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1959 if (sc->ciss_cam_devq)
1960 cam_simq_free(sc->ciss_cam_devq);
1962 /* remove the control device */
1963 mtx_unlock(&sc->ciss_mtx);
1964 if (sc->ciss_dev_t != NULL)
1965 destroy_dev(sc->ciss_dev_t);
1967 /* Final cleanup of the callout. */
1968 callout_drain(&sc->ciss_periodic);
1969 mtx_destroy(&sc->ciss_mtx);
1971 /* free the controller data */
1972 if (sc->ciss_id != NULL)
1973 free(sc->ciss_id, CISS_MALLOC_CLASS);
1975 /* release I/O resources */
1976 if (sc->ciss_regs_resource != NULL)
1977 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1978 sc->ciss_regs_rid, sc->ciss_regs_resource);
1979 if (sc->ciss_cfg_resource != NULL)
1980 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1981 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1982 if (sc->ciss_intr != NULL)
1983 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1984 if (sc->ciss_irq_resource != NULL)
1985 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1986 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
1988 pci_release_msi(sc->ciss_dev);
1990 while ((cr = ciss_dequeue_free(sc)) != NULL)
1991 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
1992 if (sc->ciss_buffer_dmat)
1993 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1995 /* destroy command memory and DMA tag */
1996 if (sc->ciss_command != NULL) {
1997 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1998 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
2000 if (sc->ciss_command_dmat)
2001 bus_dma_tag_destroy(sc->ciss_command_dmat);
2003 if (sc->ciss_reply) {
2004 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
2005 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
2007 if (sc->ciss_reply_dmat)
2008 bus_dma_tag_destroy(sc->ciss_reply_dmat);
2010 /* destroy DMA tags */
2011 if (sc->ciss_parent_dmat)
2012 bus_dma_tag_destroy(sc->ciss_parent_dmat);
2013 if (sc->ciss_logical) {
2014 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
2015 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
2016 if (sc->ciss_logical[i][j].cl_ldrive)
2017 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
2018 if (sc->ciss_logical[i][j].cl_lstatus)
2019 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
2021 free(sc->ciss_logical[i], CISS_MALLOC_CLASS);
2023 free(sc->ciss_logical, CISS_MALLOC_CLASS);
2026 if (sc->ciss_physical) {
2027 for (i = 0; i < sc->ciss_max_physical_bus; i++)
2028 free(sc->ciss_physical[i], CISS_MALLOC_CLASS);
2029 free(sc->ciss_physical, CISS_MALLOC_CLASS);
2032 if (sc->ciss_controllers)
2033 free(sc->ciss_controllers, CISS_MALLOC_CLASS);
2037 /************************************************************************
2038 * Give a command to the adapter.
2040 * Note that this uses the simple transport layer directly. If we
2041 * want to add support for other layers, we'll need a switch of some
2044 * Note that the simple transport layer has no way of refusing a
2045 * command; we only have as many request structures as the adapter
2046 * supports commands, so we don't have to check (this presumes that
2047 * the adapter can handle commands as fast as we throw them at it).
2050 ciss_start(struct ciss_request *cr)
2052 struct ciss_command *cc; /* XXX debugging only */
2056 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2059 * Map the request's data.
2061 if ((error = ciss_map_request(cr)))
2065 ciss_print_request(cr);
2071 /************************************************************************
2072 * Fetch completed request(s) from the adapter, queue them for
2073 * completion handling.
2075 * Note that this uses the simple transport layer directly. If we
2076 * want to add support for other layers, we'll need a switch of some
2079 * Note that the simple transport mechanism does not require any
2080 * reentrancy protection; the OPQ read is atomic. If there is a
2081 * chance of a race with something else that might move the request
2082 * off the busy list, then we will have to lock against that
2083 * (eg. timeouts, etc.)
2086 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2088 struct ciss_request *cr;
2089 struct ciss_command *cc;
2090 u_int32_t tag, index;
2095 * Loop quickly taking requests from the adapter and moving them
2096 * to the completed queue.
2100 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2101 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2104 debug(2, "completed command %d%s", index,
2105 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2106 if (index >= sc->ciss_max_requests) {
2107 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2110 cr = &(sc->ciss_request[index]);
2112 cc->header.host_tag = tag; /* not updated by adapter */
2113 ciss_enqueue_complete(cr, qh);
2119 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2121 struct ciss_request *cr;
2122 struct ciss_command *cc;
2123 u_int32_t tag, index;
2128 * Loop quickly taking requests from the adapter and moving them
2129 * to the completed queue.
2132 tag = sc->ciss_reply[sc->ciss_rqidx];
2133 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2136 debug(2, "completed command %d%s\n", index,
2137 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2138 if (index < sc->ciss_max_requests) {
2139 cr = &(sc->ciss_request[index]);
2141 cc->header.host_tag = tag; /* not updated by adapter */
2142 ciss_enqueue_complete(cr, qh);
2144 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2146 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2148 sc->ciss_cycle ^= 1;
2154 /************************************************************************
2155 * Take an interrupt from the adapter.
2158 ciss_intr(void *arg)
2161 struct ciss_softc *sc = (struct ciss_softc *)arg;
2164 * The only interrupt we recognise indicates that there are
2165 * entries in the outbound post queue.
2169 mtx_lock(&sc->ciss_mtx);
2170 ciss_complete(sc, &qh);
2171 mtx_unlock(&sc->ciss_mtx);
2175 ciss_perf_intr(void *arg)
2177 struct ciss_softc *sc = (struct ciss_softc *)arg;
2179 /* Clear the interrupt and flush the bridges. Docs say that the flush
2180 * needs to be done twice, which doesn't seem right.
2182 CISS_TL_PERF_CLEAR_INT(sc);
2183 CISS_TL_PERF_FLUSH_INT(sc);
2185 ciss_perf_msi_intr(sc);
2189 ciss_perf_msi_intr(void *arg)
2192 struct ciss_softc *sc = (struct ciss_softc *)arg;
2195 ciss_perf_done(sc, &qh);
2196 mtx_lock(&sc->ciss_mtx);
2197 ciss_complete(sc, &qh);
2198 mtx_unlock(&sc->ciss_mtx);
2202 /************************************************************************
2203 * Process completed requests.
2205 * Requests can be completed in three fashions:
2207 * - by invoking a callback function (cr_complete is non-null)
2208 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2209 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2212 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2214 struct ciss_request *cr;
2219 * Loop taking requests off the completed queue and performing
2220 * completion processing on them.
2223 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2225 ciss_unmap_request(cr);
2227 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2228 ciss_printf(sc, "WARNING: completing non-busy request\n");
2229 cr->cr_flags &= ~CISS_REQ_BUSY;
2232 * If the request has a callback, invoke it.
2234 if (cr->cr_complete != NULL) {
2235 cr->cr_complete(cr);
2240 * If someone is sleeping on this request, wake them up.
2242 if (cr->cr_flags & CISS_REQ_SLEEP) {
2243 cr->cr_flags &= ~CISS_REQ_SLEEP;
2249 * If someone is polling this request for completion, signal.
2251 if (cr->cr_flags & CISS_REQ_POLL) {
2252 cr->cr_flags &= ~CISS_REQ_POLL;
2257 * Give up and throw the request back on the free queue. This
2258 * should never happen; resources will probably be lost.
2260 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2261 ciss_enqueue_free(cr);
2265 /************************************************************************
2266 * Report on the completion status of a request, and pass back SCSI
2267 * and command status values.
2270 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2272 struct ciss_command *cc;
2273 struct ciss_error_info *ce;
2278 ce = (struct ciss_error_info *)&(cc->sg[0]);
2281 * We don't consider data under/overrun an error for the Report
2282 * Logical/Physical LUNs commands.
2284 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2285 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2286 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2287 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2288 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2289 (cc->cdb.cdb[0] == INQUIRY))) {
2290 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2291 debug(2, "ignoring irrelevant under/overrun error");
2295 * Check the command's error bit, if clear, there's no status and
2298 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2299 if (scsi_status != NULL)
2300 *scsi_status = SCSI_STATUS_OK;
2301 if (command_status != NULL)
2302 *command_status = CISS_CMD_STATUS_SUCCESS;
2305 if (command_status != NULL)
2306 *command_status = ce->command_status;
2307 if (scsi_status != NULL) {
2308 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2309 *scsi_status = ce->scsi_status;
2315 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2316 ce->command_status, ciss_name_command_status(ce->command_status),
2318 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2319 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2320 ce->additional_error_info.invalid_command.offense_size,
2321 ce->additional_error_info.invalid_command.offense_offset,
2322 ce->additional_error_info.invalid_command.offense_value,
2327 ciss_print_request(cr);
2332 /************************************************************************
2333 * Issue a request and don't return until it's completed.
2335 * Depending on adapter status, we may poll or sleep waiting for
2339 ciss_synch_request(struct ciss_request *cr, int timeout)
2341 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2342 return(ciss_wait_request(cr, timeout));
2344 return(ciss_poll_request(cr, timeout));
2348 /************************************************************************
2349 * Issue a request and poll for completion.
2351 * Timeout in milliseconds.
2354 ciss_poll_request(struct ciss_request *cr, int timeout)
2357 struct ciss_softc *sc;
2364 cr->cr_flags |= CISS_REQ_POLL;
2365 if ((error = ciss_start(cr)) != 0)
2370 ciss_perf_done(sc, &qh);
2373 ciss_complete(sc, &qh);
2374 if (!(cr->cr_flags & CISS_REQ_POLL))
2377 } while (timeout-- >= 0);
2378 return(EWOULDBLOCK);
2381 /************************************************************************
2382 * Issue a request and sleep waiting for completion.
2384 * Timeout in milliseconds. Note that a spurious wakeup will reset
2388 ciss_wait_request(struct ciss_request *cr, int timeout)
2394 cr->cr_flags |= CISS_REQ_SLEEP;
2395 if ((error = ciss_start(cr)) != 0)
2398 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2399 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000);
2405 /************************************************************************
2406 * Abort a request. Note that a potential exists here to race the
2407 * request being completed; the caller must deal with this.
2410 ciss_abort_request(struct ciss_request *ar)
2412 struct ciss_request *cr;
2413 struct ciss_command *cc;
2414 struct ciss_message_cdb *cmc;
2420 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2423 /* build the abort command */
2425 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2426 cc->header.address.physical.target = 0;
2427 cc->header.address.physical.bus = 0;
2428 cc->cdb.cdb_length = sizeof(*cmc);
2429 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2430 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2431 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2432 cc->cdb.timeout = 30;
2434 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2435 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2436 cmc->type = CISS_MESSAGE_ABORT_TASK;
2437 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2440 * Send the request and wait for a response. If we believe we
2441 * aborted the request OK, clear the flag that indicates it's
2444 error = ciss_synch_request(cr, 35 * 1000);
2446 error = ciss_report_request(cr, NULL, NULL);
2447 ciss_release_request(cr);
2454 /************************************************************************
2455 * Fetch and initialise a request
2458 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2460 struct ciss_request *cr;
2465 * Get a request and clean it up.
2467 if ((cr = ciss_dequeue_free(sc)) == NULL)
2472 cr->cr_complete = NULL;
2473 cr->cr_private = NULL;
2474 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2476 ciss_preen_command(cr);
2482 ciss_preen_command(struct ciss_request *cr)
2484 struct ciss_command *cc;
2488 * Clean up the command structure.
2490 * Note that we set up the error_info structure here, since the
2491 * length can be overwritten by any command.
2494 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2495 cc->header.sg_total = 0;
2496 cc->header.host_tag = cr->cr_tag << 2;
2497 cc->header.host_tag_zeroes = 0;
2498 cmdphys = cr->cr_ccphys;
2499 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2500 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2503 /************************************************************************
2504 * Release a request to the free list.
2507 ciss_release_request(struct ciss_request *cr)
2509 struct ciss_softc *sc;
2515 /* release the request to the free queue */
2516 ciss_requeue_free(cr);
2519 /************************************************************************
2520 * Allocate a request that will be used to send a BMIC command. Do some
2521 * of the common setup here to avoid duplicating it everywhere else.
2524 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2525 int opcode, void **bufp, size_t bufsize)
2527 struct ciss_request *cr;
2528 struct ciss_command *cc;
2529 struct ciss_bmic_cdb *cbc;
2542 if ((error = ciss_get_request(sc, &cr)) != 0)
2546 * Allocate data storage if requested, determine the data direction.
2549 if ((bufsize > 0) && (bufp != NULL)) {
2550 if (*bufp == NULL) {
2551 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
2557 dataout = 1; /* we are given a buffer, so we are writing */
2562 * Build a CISS BMIC command to get the logical drive ID.
2565 cr->cr_length = bufsize;
2567 cr->cr_flags = CISS_REQ_DATAIN;
2570 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2571 cc->header.address.physical.bus = 0;
2572 cc->header.address.physical.target = 0;
2573 cc->cdb.cdb_length = sizeof(*cbc);
2574 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2575 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2576 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2577 cc->cdb.timeout = 0;
2579 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2580 bzero(cbc, sizeof(*cbc));
2581 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2582 cbc->bmic_opcode = opcode;
2583 cbc->size = htons((u_int16_t)bufsize);
2588 ciss_release_request(cr);
2591 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2597 /************************************************************************
2598 * Handle a command passed in from userspace.
2601 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2603 struct ciss_request *cr;
2604 struct ciss_command *cc;
2605 struct ciss_error_info *ce;
2615 while (ciss_get_request(sc, &cr) != 0)
2616 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz);
2620 * Allocate an in-kernel databuffer if required, copy in user data.
2622 mtx_unlock(&sc->ciss_mtx);
2623 cr->cr_length = ioc->buf_size;
2624 if (ioc->buf_size > 0) {
2625 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
2629 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2630 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2636 * Build the request based on the user command.
2638 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2639 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2641 /* XXX anything else to populate here? */
2642 mtx_lock(&sc->ciss_mtx);
2647 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2648 debug(0, "request failed - %d", error);
2653 * Check to see if the command succeeded.
2655 ce = (struct ciss_error_info *)&(cc->sg[0]);
2656 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2657 bzero(ce, sizeof(*ce));
2660 * Copy the results back to the user.
2662 bcopy(ce, &ioc->error_info, sizeof(*ce));
2663 mtx_unlock(&sc->ciss_mtx);
2664 if ((ioc->buf_size > 0) &&
2665 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2666 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2674 mtx_lock(&sc->ciss_mtx);
2677 if ((cr != NULL) && (cr->cr_data != NULL))
2678 free(cr->cr_data, CISS_MALLOC_CLASS);
2680 ciss_release_request(cr);
2684 /************************************************************************
2685 * Map a request into bus-visible space, initialise the scatter/gather
2689 ciss_map_request(struct ciss_request *cr)
2691 struct ciss_softc *sc;
2698 /* check that mapping is necessary */
2699 if (cr->cr_flags & CISS_REQ_MAPPED)
2702 cr->cr_flags |= CISS_REQ_MAPPED;
2704 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2705 BUS_DMASYNC_PREWRITE);
2707 if (cr->cr_data != NULL) {
2708 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2709 cr->cr_data, cr->cr_length,
2710 ciss_request_map_helper, cr, 0);
2715 * Post the command to the adapter.
2717 cr->cr_sg_tag = CISS_SG_NONE;
2718 cr->cr_flags |= CISS_REQ_BUSY;
2720 CISS_TL_PERF_POST_CMD(sc, cr);
2722 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2729 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2731 struct ciss_command *cc;
2732 struct ciss_request *cr;
2733 struct ciss_softc *sc;
2738 cr = (struct ciss_request *)arg;
2742 for (i = 0; i < nseg; i++) {
2743 cc->sg[i].address = segs[i].ds_addr;
2744 cc->sg[i].length = segs[i].ds_len;
2745 cc->sg[i].extension = 0;
2747 /* we leave the s/g table entirely within the command */
2748 cc->header.sg_in_list = nseg;
2749 cc->header.sg_total = nseg;
2751 if (cr->cr_flags & CISS_REQ_DATAIN)
2752 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2753 if (cr->cr_flags & CISS_REQ_DATAOUT)
2754 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2757 cr->cr_sg_tag = CISS_SG_NONE;
2759 cr->cr_sg_tag = CISS_SG_1;
2761 cr->cr_sg_tag = CISS_SG_2;
2763 cr->cr_sg_tag = CISS_SG_4;
2765 cr->cr_sg_tag = CISS_SG_8;
2766 else if (nseg <= 16)
2767 cr->cr_sg_tag = CISS_SG_16;
2768 else if (nseg <= 32)
2769 cr->cr_sg_tag = CISS_SG_32;
2771 cr->cr_sg_tag = CISS_SG_MAX;
2774 * Post the command to the adapter.
2776 cr->cr_flags |= CISS_REQ_BUSY;
2778 CISS_TL_PERF_POST_CMD(sc, cr);
2780 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2783 /************************************************************************
2784 * Unmap a request from bus-visible space.
2787 ciss_unmap_request(struct ciss_request *cr)
2789 struct ciss_softc *sc;
2795 /* check that unmapping is necessary */
2796 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2799 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2800 BUS_DMASYNC_POSTWRITE);
2802 if (cr->cr_data == NULL)
2805 if (cr->cr_flags & CISS_REQ_DATAIN)
2806 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2807 if (cr->cr_flags & CISS_REQ_DATAOUT)
2808 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2810 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2812 cr->cr_flags &= ~CISS_REQ_MAPPED;
2815 /************************************************************************
2816 * Attach the driver to CAM.
2818 * We put all the logical drives on a single SCSI bus.
2821 ciss_cam_init(struct ciss_softc *sc)
2828 * Allocate a devq. We can reuse this for the masked physical
2829 * devices if we decide to export these as well.
2831 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2832 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2839 * This naturally wastes a bit of memory. The alternative is to allocate
2840 * and register each bus as it is found, and then track them on a linked
2841 * list. Unfortunately, the driver has a few places where it needs to
2842 * look up the SIM based solely on bus number, and it's unclear whether
2843 * a list traversal would work for these situations.
2845 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2846 CISS_PHYSICAL_BASE);
2847 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*),
2848 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO);
2849 if (sc->ciss_cam_sim == NULL) {
2850 ciss_printf(sc, "can't allocate memory for controller SIM\n");
2854 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2855 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2857 device_get_unit(sc->ciss_dev),
2860 sc->ciss_max_requests - 2,
2861 sc->ciss_cam_devq)) == NULL) {
2862 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2867 * Register bus with this SIM.
2869 mtx_lock(&sc->ciss_mtx);
2870 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2871 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2872 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2873 mtx_unlock(&sc->ciss_mtx);
2877 mtx_unlock(&sc->ciss_mtx);
2880 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2881 CISS_PHYSICAL_BASE; i++) {
2882 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2884 device_get_unit(sc->ciss_dev),
2886 sc->ciss_max_requests - 2,
2887 sc->ciss_cam_devq)) == NULL) {
2888 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2892 mtx_lock(&sc->ciss_mtx);
2893 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) {
2894 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2895 mtx_unlock(&sc->ciss_mtx);
2898 mtx_unlock(&sc->ciss_mtx);
2904 /************************************************************************
2905 * Initiate a rescan of the 'logical devices' SIM
2908 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2914 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) {
2915 ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
2919 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
2920 cam_sim_path(sc->ciss_cam_sim[bus]),
2921 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2922 ciss_printf(sc, "rescan failed (can't create path)\n");
2927 /* scan is now in progress */
2930 /************************************************************************
2931 * Handle requests coming from CAM
2934 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2936 struct ciss_softc *sc;
2937 struct ccb_scsiio *csio;
2941 sc = cam_sim_softc(sim);
2942 bus = cam_sim_bus(sim);
2943 csio = (struct ccb_scsiio *)&ccb->csio;
2944 target = csio->ccb_h.target_id;
2945 physical = CISS_IS_PHYSICAL(bus);
2947 switch (ccb->ccb_h.func_code) {
2949 /* perform SCSI I/O */
2951 if (!ciss_cam_action_io(sim, csio))
2955 /* perform geometry calculations */
2956 case XPT_CALC_GEOMETRY:
2958 struct ccb_calc_geometry *ccg = &ccb->ccg;
2959 struct ciss_ldrive *ld;
2961 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2965 ld = &sc->ciss_logical[bus][target];
2968 * Use the cached geometry settings unless the fault tolerance
2971 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
2972 u_int32_t secs_per_cylinder;
2975 ccg->secs_per_track = 32;
2976 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2977 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2979 ccg->heads = ld->cl_geometry.heads;
2980 ccg->secs_per_track = ld->cl_geometry.sectors;
2981 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2983 ccb->ccb_h.status = CAM_REQ_CMP;
2987 /* handle path attribute inquiry */
2990 struct ccb_pathinq *cpi = &ccb->cpi;
2992 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2994 cpi->version_num = 1;
2995 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2996 cpi->target_sprt = 0;
2998 cpi->max_target = sc->ciss_cfg->max_logical_supported;
2999 cpi->max_lun = 0; /* 'logical drive' channel only */
3000 cpi->initiator_id = sc->ciss_cfg->max_logical_supported;
3001 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3002 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
3003 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3004 cpi->unit_number = cam_sim_unit(sim);
3005 cpi->bus_id = cam_sim_bus(sim);
3006 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
3007 cpi->transport = XPORT_SPI;
3008 cpi->transport_version = 2;
3009 cpi->protocol = PROTO_SCSI;
3010 cpi->protocol_version = SCSI_REV_2;
3011 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE;
3012 ccb->ccb_h.status = CAM_REQ_CMP;
3016 case XPT_GET_TRAN_SETTINGS:
3018 struct ccb_trans_settings *cts = &ccb->cts;
3020 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3021 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3023 bus = cam_sim_bus(sim);
3024 target = cts->ccb_h.target_id;
3026 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
3027 /* disconnect always OK */
3028 cts->protocol = PROTO_SCSI;
3029 cts->protocol_version = SCSI_REV_2;
3030 cts->transport = XPORT_SPI;
3031 cts->transport_version = 2;
3033 spi->valid = CTS_SPI_VALID_DISC;
3034 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3036 scsi->valid = CTS_SCSI_VALID_TQ;
3037 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3039 cts->ccb_h.status = CAM_REQ_CMP;
3043 default: /* we can't do this */
3044 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3045 ccb->ccb_h.status = CAM_REQ_INVALID;
3052 /************************************************************************
3053 * Handle a CAM SCSI I/O request.
3056 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3058 struct ciss_softc *sc;
3060 struct ciss_request *cr;
3061 struct ciss_command *cc;
3064 sc = cam_sim_softc(sim);
3065 bus = cam_sim_bus(sim);
3066 target = csio->ccb_h.target_id;
3068 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3070 /* check that the CDB pointer is not to a physical address */
3071 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3072 debug(3, " CDB pointer is to physical address");
3073 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3076 /* if there is data transfer, it must be to/from a virtual address */
3077 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
3078 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
3079 debug(3, " data pointer is to physical address");
3080 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3082 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
3083 debug(3, " data has premature s/g setup");
3084 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3088 /* abandon aborted ccbs or those that have failed validation */
3089 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3090 debug(3, "abandoning CCB due to abort/validation failure");
3094 /* handle emulation of some SCSI commands ourself */
3095 if (ciss_cam_emulate(sc, csio))
3099 * Get a request to manage this command. If we can't, return the
3100 * ccb, freeze the queue and flag so that we unfreeze it when a
3101 * request completes.
3103 if ((error = ciss_get_request(sc, &cr)) != 0) {
3104 xpt_freeze_simq(sim, 1);
3105 sc->ciss_flags |= CISS_FLAG_BUSY;
3106 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3111 * Build the command.
3114 cr->cr_data = csio->data_ptr;
3115 cr->cr_length = csio->dxfer_len;
3116 cr->cr_complete = ciss_cam_complete;
3117 cr->cr_private = csio;
3120 * Target the right logical volume.
3122 if (CISS_IS_PHYSICAL(bus))
3123 cc->header.address =
3124 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3126 cc->header.address =
3127 sc->ciss_logical[bus][target].cl_address;
3128 cc->cdb.cdb_length = csio->cdb_len;
3129 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3130 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3131 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3132 cr->cr_flags = CISS_REQ_DATAOUT;
3133 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3134 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3135 cr->cr_flags = CISS_REQ_DATAIN;
3136 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3139 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3141 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3142 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3143 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3145 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3149 * Submit the request to the adapter.
3151 * Note that this may fail if we're unable to map the request (and
3152 * if we ever learn a transport layer other than simple, may fail
3153 * if the adapter rejects the command).
3155 if ((error = ciss_start(cr)) != 0) {
3156 xpt_freeze_simq(sim, 1);
3157 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3158 if (error == EINPROGRESS) {
3161 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3162 ciss_release_request(cr);
3170 /************************************************************************
3171 * Emulate SCSI commands the adapter doesn't handle as we might like.
3174 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3179 target = csio->ccb_h.target_id;
3180 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3181 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3182 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
3184 if (CISS_IS_PHYSICAL(bus)) {
3185 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3186 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3187 xpt_done((union ccb *)csio);
3194 * Handle requests for volumes that don't exist or are not online.
3195 * A selection timeout is slightly better than an illegal request.
3196 * Other errors might be better.
3198 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3199 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3200 xpt_done((union ccb *)csio);
3204 /* if we have to fake Synchronise Cache */
3205 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3207 * If this is a Synchronise Cache command, typically issued when
3208 * a device is closed, flush the adapter and complete now.
3210 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3211 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3212 ciss_flush_adapter(sc);
3213 csio->ccb_h.status |= CAM_REQ_CMP;
3214 xpt_done((union ccb *)csio);
3220 * A CISS target can only ever have one lun per target. REPORT_LUNS requires
3221 * at least one LUN field to be pre created for us, so snag it and fill in
3222 * the least significant byte indicating 1 LUN here. Emulate the command
3223 * return to shut up warning on console of a CDB error. swb
3225 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) {
3226 csio->data_ptr[3] = 8;
3227 csio->ccb_h.status |= CAM_REQ_CMP;
3228 xpt_done((union ccb *)csio);
3235 /************************************************************************
3236 * Check for possibly-completed commands.
3239 ciss_cam_poll(struct cam_sim *sim)
3242 struct ciss_softc *sc = cam_sim_softc(sim);
3248 ciss_perf_done(sc, &qh);
3251 ciss_complete(sc, &qh);
3254 /************************************************************************
3255 * Handle completion of a command - pass results back through the CCB
3258 ciss_cam_complete(struct ciss_request *cr)
3260 struct ciss_softc *sc;
3261 struct ciss_command *cc;
3262 struct ciss_error_info *ce;
3263 struct ccb_scsiio *csio;
3271 ce = (struct ciss_error_info *)&(cc->sg[0]);
3272 csio = (struct ccb_scsiio *)cr->cr_private;
3275 * Extract status values from request.
3277 ciss_report_request(cr, &command_status, &scsi_status);
3278 csio->scsi_status = scsi_status;
3281 * Handle specific SCSI status values.
3283 switch(scsi_status) {
3284 /* no status due to adapter error */
3286 debug(0, "adapter error");
3287 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3290 /* no status due to command completed OK */
3291 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3292 debug(2, "SCSI_STATUS_OK");
3293 csio->ccb_h.status |= CAM_REQ_CMP;
3296 /* check condition, sense data included */
3297 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3298 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3299 ce->sense_length, ce->residual_count);
3300 bzero(&csio->sense_data, SSD_FULL_SIZE);
3301 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3302 csio->sense_len = ce->sense_length;
3303 csio->resid = ce->residual_count;
3304 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3307 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3308 debug(0, "sense key %x", sns->flags & SSD_KEY);
3313 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3314 debug(0, "SCSI_STATUS_BUSY");
3315 csio->ccb_h.status |= CAM_SCSI_BUSY;
3319 debug(0, "unknown status 0x%x", csio->scsi_status);
3320 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3324 /* handle post-command fixup */
3325 ciss_cam_complete_fixup(sc, csio);
3327 ciss_release_request(cr);
3328 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3329 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3330 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3331 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3333 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3335 xpt_done((union ccb *)csio);
3338 /********************************************************************************
3339 * Fix up the result of some commands here.
3342 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3344 struct scsi_inquiry_data *inq;
3345 struct ciss_ldrive *cl;
3349 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3350 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3351 if (cdb[0] == INQUIRY &&
3352 (cdb[1] & SI_EVPD) == 0 &&
3353 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3354 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3356 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3357 target = csio->ccb_h.target_id;
3358 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3361 * Don't let hard drives be seen by the DA driver. They will still be
3362 * attached by the PASS driver.
3364 if (CISS_IS_PHYSICAL(bus)) {
3365 if (SID_TYPE(inq) == T_DIRECT)
3366 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3370 cl = &sc->ciss_logical[bus][target];
3372 padstr(inq->vendor, "COMPAQ",
3374 padstr(inq->product,
3375 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance),
3377 padstr(inq->revision,
3378 ciss_name_ldrive_status(cl->cl_lstatus->status),
3384 /********************************************************************************
3385 * Find a peripheral attached at (target)
3387 static struct cam_periph *
3388 ciss_find_periph(struct ciss_softc *sc, int bus, int target)
3390 struct cam_periph *periph;
3391 struct cam_path *path;
3394 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3396 if (status == CAM_REQ_CMP) {
3397 periph = cam_periph_find(path, NULL);
3398 xpt_free_path(path);
3405 /********************************************************************************
3406 * Name the device at (target)
3408 * XXX is this strictly correct?
3411 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3413 struct cam_periph *periph;
3415 if (CISS_IS_PHYSICAL(bus))
3417 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) {
3418 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3419 periph->periph_name, periph->unit_number);
3422 sc->ciss_logical[bus][target].cl_name[0] = 0;
3426 /************************************************************************
3427 * Periodic status monitoring.
3430 ciss_periodic(void *arg)
3432 struct ciss_softc *sc;
3433 struct ciss_request *cr = NULL;
3434 struct ciss_command *cc = NULL;
3439 sc = (struct ciss_softc *)arg;
3442 * Check the adapter heartbeat.
3444 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3445 sc->ciss_heart_attack++;
3446 debug(0, "adapter heart attack in progress 0x%x/%d",
3447 sc->ciss_heartbeat, sc->ciss_heart_attack);
3448 if (sc->ciss_heart_attack == 3) {
3449 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3450 ciss_disable_adapter(sc);
3454 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3455 sc->ciss_heart_attack = 0;
3456 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3460 * Send the NOP message and wait for a response.
3462 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3464 cr->cr_complete = ciss_nop_complete;
3465 cc->cdb.cdb_length = 1;
3466 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3467 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3468 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3469 cc->cdb.timeout = 0;
3470 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3472 if ((error = ciss_start(cr)) != 0) {
3473 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3478 * If the notify event request has died for some reason, or has
3479 * not started yet, restart it.
3481 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3482 debug(0, "(re)starting Event Notify chain");
3483 ciss_notify_event(sc);
3489 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3493 ciss_nop_complete(struct ciss_request *cr)
3495 struct ciss_softc *sc;
3496 static int first_time = 1;
3499 if (ciss_report_request(cr, NULL, NULL) != 0) {
3500 if (first_time == 1) {
3502 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3506 ciss_release_request(cr);
3509 /************************************************************************
3510 * Disable the adapter.
3512 * The all requests in completed queue is failed with hardware error.
3513 * This will cause failover in a multipath configuration.
3516 ciss_disable_adapter(struct ciss_softc *sc)
3519 struct ciss_request *cr;
3520 struct ciss_command *cc;
3521 struct ciss_error_info *ce;
3524 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3525 pci_disable_busmaster(sc->ciss_dev);
3526 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3528 for (i = 1; i < sc->ciss_max_requests; i++) {
3529 cr = &sc->ciss_request[i];
3530 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3534 ce = (struct ciss_error_info *)&(cc->sg[0]);
3535 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3536 ciss_enqueue_complete(cr, &qh);
3540 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3544 * If the request has a callback, invoke it.
3546 if (cr->cr_complete != NULL) {
3547 cr->cr_complete(cr);
3552 * If someone is sleeping on this request, wake them up.
3554 if (cr->cr_flags & CISS_REQ_SLEEP) {
3555 cr->cr_flags &= ~CISS_REQ_SLEEP;
3562 /************************************************************************
3563 * Request a notification response from the adapter.
3565 * If (cr) is NULL, this is the first request of the adapter, so
3566 * reset the adapter's message pointer and start with the oldest
3567 * message available.
3570 ciss_notify_event(struct ciss_softc *sc)
3572 struct ciss_request *cr;
3573 struct ciss_command *cc;
3574 struct ciss_notify_cdb *cnc;
3579 cr = sc->ciss_periodic_notify;
3581 /* get a request if we don't already have one */
3583 if ((error = ciss_get_request(sc, &cr)) != 0) {
3584 debug(0, "can't get notify event request");
3587 sc->ciss_periodic_notify = cr;
3588 cr->cr_complete = ciss_notify_complete;
3589 debug(1, "acquired request %d", cr->cr_tag);
3593 * Get a databuffer if we don't already have one, note that the
3594 * adapter command wants a larger buffer than the actual
3597 if (cr->cr_data == NULL) {
3598 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3599 debug(0, "can't get notify event request buffer");
3603 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3606 /* re-setup the request's command (since we never release it) XXX overkill*/
3607 ciss_preen_command(cr);
3609 /* (re)build the notify event command */
3611 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3612 cc->header.address.physical.bus = 0;
3613 cc->header.address.physical.target = 0;
3615 cc->cdb.cdb_length = sizeof(*cnc);
3616 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3617 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3618 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3619 cc->cdb.timeout = 0; /* no timeout, we hope */
3621 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3622 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3623 cnc->opcode = CISS_OPCODE_READ;
3624 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3625 cnc->timeout = 0; /* no timeout, we hope */
3626 cnc->synchronous = 0;
3628 cnc->seek_to_oldest = 0;
3629 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3633 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3635 /* submit the request */
3636 error = ciss_start(cr);
3641 if (cr->cr_data != NULL)
3642 free(cr->cr_data, CISS_MALLOC_CLASS);
3643 ciss_release_request(cr);
3645 sc->ciss_periodic_notify = NULL;
3646 debug(0, "can't submit notify event request");
3647 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3649 debug(1, "notify event submitted");
3650 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3655 ciss_notify_complete(struct ciss_request *cr)
3657 struct ciss_command *cc;
3658 struct ciss_notify *cn;
3659 struct ciss_softc *sc;
3665 cn = (struct ciss_notify *)cr->cr_data;
3669 * Report request results, decode status.
3671 ciss_report_request(cr, &command_status, &scsi_status);
3674 * Abort the chain on a fatal error.
3676 * XXX which of these are actually errors?
3678 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3679 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3680 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3681 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3682 ciss_name_command_status(command_status));
3683 ciss_release_request(cr);
3684 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3689 * If the adapter gave us a text message, print it.
3691 if (cn->message[0] != 0)
3692 ciss_printf(sc, "*** %.80s\n", cn->message);
3694 debug(0, "notify event class %d subclass %d detail %d",
3695 cn->class, cn->subclass, cn->detail);
3698 * If the response indicates that the notifier has been aborted,
3699 * release the notifier command.
3701 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3702 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3703 (cn->detail == 1)) {
3704 debug(0, "notifier exiting");
3705 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3706 ciss_release_request(cr);
3707 sc->ciss_periodic_notify = NULL;
3708 wakeup(&sc->ciss_periodic_notify);
3710 /* Handle notify events in a kernel thread */
3711 ciss_enqueue_notify(cr);
3712 sc->ciss_periodic_notify = NULL;
3713 wakeup(&sc->ciss_periodic_notify);
3714 wakeup(&sc->ciss_notify);
3717 * Send a new notify event command, if we're not aborting.
3719 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3720 ciss_notify_event(sc);
3724 /************************************************************************
3725 * Abort the Notify Event chain.
3727 * Note that we can't just abort the command in progress; we have to
3728 * explicitly issue an Abort Notify Event command in order for the
3729 * adapter to clean up correctly.
3731 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3732 * the chain will not restart itself.
3735 ciss_notify_abort(struct ciss_softc *sc)
3737 struct ciss_request *cr;
3738 struct ciss_command *cc;
3739 struct ciss_notify_cdb *cnc;
3740 int error, command_status, scsi_status;
3747 /* verify that there's an outstanding command */
3748 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3751 /* get a command to issue the abort with */
3752 if ((error = ciss_get_request(sc, &cr)))
3755 /* get a buffer for the result */
3756 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
3757 debug(0, "can't get notify event request buffer");
3761 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3765 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3766 cc->header.address.physical.bus = 0;
3767 cc->header.address.physical.target = 0;
3768 cc->cdb.cdb_length = sizeof(*cnc);
3769 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3770 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3771 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3772 cc->cdb.timeout = 0; /* no timeout, we hope */
3774 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3775 bzero(cnc, sizeof(*cnc));
3776 cnc->opcode = CISS_OPCODE_WRITE;
3777 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3778 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3780 ciss_print_request(cr);
3783 * Submit the request and wait for it to complete.
3785 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3786 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3793 ciss_report_request(cr, &command_status, &scsi_status);
3794 switch(command_status) {
3795 case CISS_CMD_STATUS_SUCCESS:
3797 case CISS_CMD_STATUS_INVALID_COMMAND:
3799 * Some older adapters don't support the CISS version of this
3800 * command. Fall back to using the BMIC version.
3802 error = ciss_notify_abort_bmic(sc);
3807 case CISS_CMD_STATUS_TARGET_STATUS:
3809 * This can happen if the adapter thinks there wasn't an outstanding
3810 * Notify Event command but we did. We clean up here.
3812 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3813 if (sc->ciss_periodic_notify != NULL)
3814 ciss_release_request(sc->ciss_periodic_notify);
3821 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3822 ciss_name_command_status(command_status));
3828 * Sleep waiting for the notifier command to complete. Note
3829 * that if it doesn't, we may end up in a bad situation, since
3830 * the adapter may deliver it later. Also note that the adapter
3831 * requires the Notify Event command to be cancelled in order to
3832 * maintain internal bookkeeping.
3834 while (sc->ciss_periodic_notify != NULL) {
3835 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5);
3836 if (error == EWOULDBLOCK) {
3837 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3843 /* release the cancel request */
3845 if (cr->cr_data != NULL)
3846 free(cr->cr_data, CISS_MALLOC_CLASS);
3847 ciss_release_request(cr);
3850 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3854 /************************************************************************
3855 * Abort the Notify Event chain using a BMIC command.
3858 ciss_notify_abort_bmic(struct ciss_softc *sc)
3860 struct ciss_request *cr;
3861 int error, command_status;
3868 /* verify that there's an outstanding command */
3869 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3873 * Build a BMIC command to cancel the Notify on Event command.
3875 * Note that we are sending a CISS opcode here. Odd.
3877 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3882 * Submit the request and wait for it to complete.
3884 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3885 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3892 ciss_report_request(cr, &command_status, NULL);
3893 switch(command_status) {
3894 case CISS_CMD_STATUS_SUCCESS:
3897 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3898 ciss_name_command_status(command_status));
3905 ciss_release_request(cr);
3909 /************************************************************************
3910 * Handle rescanning all the logical volumes when a notify event
3911 * causes the drives to come online or offline.
3914 ciss_notify_rescan_logical(struct ciss_softc *sc)
3916 struct ciss_lun_report *cll;
3917 struct ciss_ldrive *ld;
3921 * We must rescan all logical volumes to get the right logical
3924 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3925 sc->ciss_cfg->max_logical_supported);
3929 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3932 * Delete any of the drives which were destroyed by the
3935 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3936 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
3937 ld = &sc->ciss_logical[i][j];
3939 if (ld->cl_update == 0)
3942 if (ld->cl_status != CISS_LD_ONLINE) {
3943 ciss_cam_rescan_target(sc, i, j);
3946 free(ld->cl_ldrive, CISS_MALLOC_CLASS);
3948 free(ld->cl_lstatus, CISS_MALLOC_CLASS);
3950 ld->cl_ldrive = NULL;
3951 ld->cl_lstatus = NULL;
3957 * Scan for new drives.
3959 for (i = 0; i < ndrives; i++) {
3962 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3963 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3964 ld = &sc->ciss_logical[bus][target];
3966 if (ld->cl_update == 0)
3970 ld->cl_address = cll->lun[i];
3971 ld->cl_controller = &sc->ciss_controllers[bus];
3972 if (ciss_identify_logical(sc, ld) == 0) {
3973 ciss_cam_rescan_target(sc, bus, target);
3976 free(cll, CISS_MALLOC_CLASS);
3979 /************************************************************************
3980 * Handle a notify event relating to the status of a logical drive.
3982 * XXX need to be able to defer some of these to properly handle
3983 * calling the "ID Physical drive" command, unless the 'extended'
3984 * drive IDs are always in BIG_MAP format.
3987 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
3989 struct ciss_ldrive *ld;
3995 bus = cn->device.physical.bus;
3996 target = cn->data.logical_status.logical_drive;
3997 ld = &sc->ciss_logical[bus][target];
3999 switch (cn->subclass) {
4000 case CISS_NOTIFY_LOGICAL_STATUS:
4001 switch (cn->detail) {
4003 ciss_name_device(sc, bus, target);
4004 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
4005 cn->data.logical_status.logical_drive, ld->cl_name,
4006 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
4007 ciss_name_ldrive_status(cn->data.logical_status.new_state),
4008 cn->data.logical_status.spare_state,
4009 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
4012 * Update our idea of the drive's status.
4014 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4015 if (ld->cl_lstatus != NULL)
4016 ld->cl_lstatus->status = cn->data.logical_status.new_state;
4019 * Have CAM rescan the drive if its status has changed.
4021 rescan_ld = (cn->data.logical_status.previous_state !=
4022 cn->data.logical_status.new_state) ? 1 : 0;
4025 ciss_notify_rescan_logical(sc);
4030 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
4031 ciss_name_device(sc, bus, target);
4032 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
4033 cn->data.logical_status.logical_drive, ld->cl_name);
4034 ciss_accept_media(sc, ld);
4037 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
4038 ciss_notify_rescan_logical(sc);
4043 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
4044 cn->data.rebuild_aborted.logical_drive,
4046 (cn->detail == 2) ? "read" : "write");
4051 case CISS_NOTIFY_LOGICAL_ERROR:
4052 if (cn->detail == 0) {
4053 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
4054 cn->data.io_error.logical_drive,
4056 cn->data.io_error.failure_bus,
4057 cn->data.io_error.failure_drive);
4058 /* XXX should we take the drive down at this point, or will we be told? */
4062 case CISS_NOTIFY_LOGICAL_SURFACE:
4063 if (cn->detail == 0)
4064 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4065 cn->data.consistency_completed.logical_drive,
4071 /************************************************************************
4072 * Handle a notify event relating to the status of a physical drive.
4075 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4079 /************************************************************************
4080 * Handle a notify event relating to the status of a physical drive.
4083 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4085 struct ciss_lun_report *cll = NULL;
4088 switch (cn->subclass) {
4089 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4090 case CISS_NOTIFY_HOTPLUG_NONDISK:
4091 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4093 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4095 if (cn->detail == 0) {
4097 * Mark the device offline so that it'll start producing selection
4098 * timeouts to the upper layer.
4100 if ((bus >= 0) && (target >= 0))
4101 sc->ciss_physical[bus][target].cp_online = 0;
4104 * Rescan the physical lun list for new items
4106 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4107 sc->ciss_cfg->max_physical_supported);
4109 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4112 ciss_filter_physical(sc, cll);
4117 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4122 free(cll, CISS_MALLOC_CLASS);
4125 /************************************************************************
4126 * Handle deferred processing of notify events. Notify events may need
4127 * sleep which is unsafe during an interrupt.
4130 ciss_notify_thread(void *arg)
4132 struct ciss_softc *sc;
4133 struct ciss_request *cr;
4134 struct ciss_notify *cn;
4136 sc = (struct ciss_softc *)arg;
4137 #if __FreeBSD_version >= 500000
4138 mtx_lock(&sc->ciss_mtx);
4142 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4143 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4144 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0);
4147 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4150 cr = ciss_dequeue_notify(sc);
4154 cn = (struct ciss_notify *)cr->cr_data;
4156 switch (cn->class) {
4157 case CISS_NOTIFY_HOTPLUG:
4158 ciss_notify_hotplug(sc, cn);
4160 case CISS_NOTIFY_LOGICAL:
4161 ciss_notify_logical(sc, cn);
4163 case CISS_NOTIFY_PHYSICAL:
4164 ciss_notify_physical(sc, cn);
4168 ciss_release_request(cr);
4171 sc->ciss_notify_thread = NULL;
4172 wakeup(&sc->ciss_notify_thread);
4174 #if __FreeBSD_version >= 500000
4175 mtx_unlock(&sc->ciss_mtx);
4180 /************************************************************************
4181 * Start the notification kernel thread.
4184 ciss_spawn_notify_thread(struct ciss_softc *sc)
4187 #if __FreeBSD_version > 500005
4188 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4189 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d",
4190 device_get_unit(sc->ciss_dev)))
4192 if (kproc_create((void(*)(void *))ciss_notify_thread, sc,
4193 &sc->ciss_notify_thread, "ciss_notify%d",
4194 device_get_unit(sc->ciss_dev)))
4196 panic("Could not create notify thread\n");
4199 /************************************************************************
4200 * Kill the notification kernel thread.
4203 ciss_kill_notify_thread(struct ciss_softc *sc)
4206 if (sc->ciss_notify_thread == NULL)
4209 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4210 wakeup(&sc->ciss_notify);
4211 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0);
4214 /************************************************************************
4218 ciss_print_request(struct ciss_request *cr)
4220 struct ciss_softc *sc;
4221 struct ciss_command *cc;
4227 ciss_printf(sc, "REQUEST @ %p\n", cr);
4228 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4229 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4230 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4231 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4232 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4233 switch(cc->header.address.mode.mode) {
4234 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4235 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4236 ciss_printf(sc, " physical bus %d target %d\n",
4237 cc->header.address.physical.bus, cc->header.address.physical.target);
4239 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4240 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4243 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4244 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4245 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4246 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4248 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4249 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4250 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4251 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4252 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4253 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4254 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4255 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
4257 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4258 /* XXX print error info */
4260 /* since we don't use chained s/g, don't support it here */
4261 for (i = 0; i < cc->header.sg_in_list; i++) {
4263 ciss_printf(sc, " ");
4264 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4265 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4271 /************************************************************************
4272 * Print information about the status of a logical drive.
4275 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4279 if (ld->cl_lstatus == NULL) {
4280 printf("does not exist\n");
4284 /* print drive status */
4285 switch(ld->cl_lstatus->status) {
4286 case CISS_LSTATUS_OK:
4289 case CISS_LSTATUS_INTERIM_RECOVERY:
4290 printf("in interim recovery mode\n");
4292 case CISS_LSTATUS_READY_RECOVERY:
4293 printf("ready to begin recovery\n");
4295 case CISS_LSTATUS_RECOVERING:
4296 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4297 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4298 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4299 bus, target, ld->cl_lstatus->blocks_to_recover);
4301 case CISS_LSTATUS_EXPANDING:
4302 printf("being expanded, %u blocks remaining\n",
4303 ld->cl_lstatus->blocks_to_recover);
4305 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4306 printf("queued for expansion\n");
4308 case CISS_LSTATUS_FAILED:
4309 printf("queued for expansion\n");
4311 case CISS_LSTATUS_WRONG_PDRIVE:
4312 printf("wrong physical drive inserted\n");
4314 case CISS_LSTATUS_MISSING_PDRIVE:
4315 printf("missing a needed physical drive\n");
4317 case CISS_LSTATUS_BECOMING_READY:
4318 printf("becoming ready\n");
4322 /* print failed physical drives */
4323 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4324 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4325 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4328 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4329 ld->cl_lstatus->drive_failure_map[i]);
4334 /************************************************************************
4335 * Print information about the controller/driver.
4338 ciss_print_adapter(struct ciss_softc *sc)
4342 ciss_printf(sc, "ADAPTER:\n");
4343 for (i = 0; i < CISSQ_COUNT; i++) {
4344 ciss_printf(sc, "%s %d/%d\n",
4346 i == 1 ? "busy" : "complete",
4347 sc->ciss_qstat[i].q_length,
4348 sc->ciss_qstat[i].q_max);
4350 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4351 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4352 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4354 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4355 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) {
4356 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4357 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4361 /* XXX Should physical drives be printed out here? */
4363 for (i = 1; i < sc->ciss_max_requests; i++)
4364 ciss_print_request(sc->ciss_request + i);
4371 struct ciss_softc *sc;
4373 sc = devclass_get_softc(devclass_find("ciss"), 0);
4375 printf("no ciss controllers\n");
4377 ciss_print_adapter(sc);
4382 /************************************************************************
4383 * Return a name for a logical drive status value.
4386 ciss_name_ldrive_status(int status)
4389 case CISS_LSTATUS_OK:
4391 case CISS_LSTATUS_FAILED:
4393 case CISS_LSTATUS_NOT_CONFIGURED:
4394 return("not configured");
4395 case CISS_LSTATUS_INTERIM_RECOVERY:
4396 return("interim recovery");
4397 case CISS_LSTATUS_READY_RECOVERY:
4398 return("ready for recovery");
4399 case CISS_LSTATUS_RECOVERING:
4400 return("recovering");
4401 case CISS_LSTATUS_WRONG_PDRIVE:
4402 return("wrong physical drive inserted");
4403 case CISS_LSTATUS_MISSING_PDRIVE:
4404 return("missing physical drive");
4405 case CISS_LSTATUS_EXPANDING:
4406 return("expanding");
4407 case CISS_LSTATUS_BECOMING_READY:
4408 return("becoming ready");
4409 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4410 return("queued for expansion");
4412 return("unknown status");
4415 /************************************************************************
4416 * Return an online/offline/nonexistent value for a logical drive
4420 ciss_decode_ldrive_status(int status)
4423 case CISS_LSTATUS_NOT_CONFIGURED:
4424 return(CISS_LD_NONEXISTENT);
4426 case CISS_LSTATUS_OK:
4427 case CISS_LSTATUS_INTERIM_RECOVERY:
4428 case CISS_LSTATUS_READY_RECOVERY:
4429 case CISS_LSTATUS_RECOVERING:
4430 case CISS_LSTATUS_EXPANDING:
4431 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4432 return(CISS_LD_ONLINE);
4434 case CISS_LSTATUS_FAILED:
4435 case CISS_LSTATUS_WRONG_PDRIVE:
4436 case CISS_LSTATUS_MISSING_PDRIVE:
4437 case CISS_LSTATUS_BECOMING_READY:
4439 return(CISS_LD_OFFLINE);
4444 /************************************************************************
4445 * Return a name for a logical drive's organisation.
4448 ciss_name_ldrive_org(int org)
4451 case CISS_LDRIVE_RAID0:
4453 case CISS_LDRIVE_RAID1:
4454 return("RAID 1(1+0)");
4455 case CISS_LDRIVE_RAID4:
4457 case CISS_LDRIVE_RAID5:
4459 case CISS_LDRIVE_RAID51:
4461 case CISS_LDRIVE_RAIDADG:
4467 /************************************************************************
4468 * Return a name for a command status value.
4471 ciss_name_command_status(int status)
4474 case CISS_CMD_STATUS_SUCCESS:
4476 case CISS_CMD_STATUS_TARGET_STATUS:
4477 return("target status");
4478 case CISS_CMD_STATUS_DATA_UNDERRUN:
4479 return("data underrun");
4480 case CISS_CMD_STATUS_DATA_OVERRUN:
4481 return("data overrun");
4482 case CISS_CMD_STATUS_INVALID_COMMAND:
4483 return("invalid command");
4484 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4485 return("protocol error");
4486 case CISS_CMD_STATUS_HARDWARE_ERROR:
4487 return("hardware error");
4488 case CISS_CMD_STATUS_CONNECTION_LOST:
4489 return("connection lost");
4490 case CISS_CMD_STATUS_ABORTED:
4492 case CISS_CMD_STATUS_ABORT_FAILED:
4493 return("abort failed");
4494 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4495 return("unsolicited abort");
4496 case CISS_CMD_STATUS_TIMEOUT:
4498 case CISS_CMD_STATUS_UNABORTABLE:
4499 return("unabortable");
4501 return("unknown status");
4504 /************************************************************************
4505 * Handle an open on the control device.
4508 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p)
4510 struct ciss_softc *sc;
4514 sc = (struct ciss_softc *)dev->si_drv1;
4516 /* we might want to veto if someone already has us open */
4518 mtx_lock(&sc->ciss_mtx);
4519 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4520 mtx_unlock(&sc->ciss_mtx);
4524 /************************************************************************
4525 * Handle the last close on the control device.
4528 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p)
4530 struct ciss_softc *sc;
4534 sc = (struct ciss_softc *)dev->si_drv1;
4536 mtx_lock(&sc->ciss_mtx);
4537 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4538 mtx_unlock(&sc->ciss_mtx);
4542 /********************************************************************************
4543 * Handle adapter-specific control operations.
4545 * Note that the API here is compatible with the Linux driver, in order to
4546 * simplify the porting of Compaq's userland tools.
4549 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p)
4551 struct ciss_softc *sc;
4552 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4554 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4555 IOCTL_Command_struct ioc_swab;
4561 sc = (struct ciss_softc *)dev->si_drv1;
4563 mtx_lock(&sc->ciss_mtx);
4566 case CCISS_GETQSTATS:
4568 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4570 switch (cr->cs_item) {
4573 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4574 sizeof(struct ciss_qstat));
4584 case CCISS_GETPCIINFO:
4586 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4588 pis->bus = pci_get_bus(sc->ciss_dev);
4589 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4590 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4591 pci_get_subdevice(sc->ciss_dev);
4596 case CCISS_GETINTINFO:
4598 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4600 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4601 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4606 case CCISS_SETINTINFO:
4608 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4610 if ((cis->delay == 0) && (cis->count == 0)) {
4616 * XXX apparently this is only safe if the controller is idle,
4617 * we should suspend it before doing this.
4619 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4620 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4622 if (ciss_update_config(sc))
4625 /* XXX resume the controller here */
4629 case CCISS_GETNODENAME:
4630 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4631 sizeof(NodeName_type));
4634 case CCISS_SETNODENAME:
4635 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4636 sizeof(NodeName_type));
4637 if (ciss_update_config(sc))
4641 case CCISS_GETHEARTBEAT:
4642 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4645 case CCISS_GETBUSTYPES:
4646 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4649 case CCISS_GETFIRMVER:
4650 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4651 sizeof(FirmwareVer_type));
4654 case CCISS_GETDRIVERVER:
4655 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4658 case CCISS_REVALIDVOLS:
4660 * This is a bit ugly; to do it "right" we really need
4661 * to find any disks that have changed, kick CAM off them,
4662 * then rescan only these disks. It'd be nice if they
4663 * a) told us which disk(s) they were going to play with,
4664 * and b) which ones had arrived. 8(
4669 case CCISS_PASSTHRU32:
4670 ioc_swab.LUN_info = ioc32->LUN_info;
4671 ioc_swab.Request = ioc32->Request;
4672 ioc_swab.error_info = ioc32->error_info;
4673 ioc_swab.buf_size = ioc32->buf_size;
4674 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4679 case CCISS_PASSTHRU:
4680 error = ciss_user_command(sc, ioc);
4684 debug(0, "unknown ioctl 0x%lx", cmd);
4686 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4687 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4688 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4689 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4690 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4691 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4692 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4693 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4694 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4695 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4696 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4702 mtx_unlock(&sc->ciss_mtx);