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
27 * $FreeBSD: src/sys/dev/ciss/ciss.c,v 1.113 2012/03/12 08:03:51 scottl Exp $
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>
87 #include <sys/device.h>
89 #include <bus/cam/cam.h>
90 #include <bus/cam/cam_ccb.h>
91 #include <bus/cam/cam_periph.h>
92 #include <bus/cam/cam_sim.h>
93 #include <bus/cam/cam_xpt_sim.h>
94 #include <bus/cam/scsi/scsi_all.h>
95 #include <bus/cam/scsi/scsi_message.h>
97 #include <machine/endian.h>
100 #include <bus/pci/pcireg.h>
101 #include <bus/pci/pcivar.h>
103 #include <dev/raid/ciss/cissreg.h>
104 #include <dev/raid/ciss/cissio.h>
105 #include <dev/raid/ciss/cissvar.h>
107 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data",
108 "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_rescan_all(struct ciss_softc *sc);
177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb);
178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
181 static void ciss_cam_poll(struct cam_sim *sim);
182 static void ciss_cam_complete(struct ciss_request *cr);
183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc,
185 int bus, int target);
186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target);
188 /* periodic status monitoring */
189 static void ciss_periodic(void *arg);
190 static void ciss_nop_complete(struct ciss_request *cr);
191 static void ciss_disable_adapter(struct ciss_softc *sc);
192 static void ciss_notify_event(struct ciss_softc *sc);
193 static void ciss_notify_complete(struct ciss_request *cr);
194 static int ciss_notify_abort(struct ciss_softc *sc);
195 static int ciss_notify_abort_bmic(struct ciss_softc *sc);
196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn);
197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
200 /* debugging output */
201 static void ciss_print_request(struct ciss_request *cr);
202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
203 static const char *ciss_name_ldrive_status(int status);
204 static int ciss_decode_ldrive_status(int status);
205 static const char *ciss_name_ldrive_org(int org);
206 static const char *ciss_name_command_status(int status);
211 static device_method_t ciss_methods[] = {
212 /* Device interface */
213 DEVMETHOD(device_probe, ciss_probe),
214 DEVMETHOD(device_attach, ciss_attach),
215 DEVMETHOD(device_detach, ciss_detach),
216 DEVMETHOD(device_shutdown, ciss_shutdown),
220 static driver_t ciss_pci_driver = {
223 sizeof(struct ciss_softc)
226 static devclass_t ciss_devclass;
227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, NULL, NULL);
228 MODULE_VERSION(ciss, 1);
229 MODULE_DEPEND(ciss, cam, 1, 1, 1);
230 MODULE_DEPEND(ciss, pci, 1, 1, 1);
233 * Control device interface.
235 static d_open_t ciss_open;
236 static d_close_t ciss_close;
237 static d_ioctl_t ciss_ioctl;
239 static struct dev_ops ciss_ops = {
240 { "ciss", 0, D_MPSAFE },
242 .d_close = ciss_close,
243 .d_ioctl = ciss_ioctl,
247 * This tunable can be set at boot time and controls whether physical devices
248 * that are marked hidden by the firmware should be exposed anyways.
250 static unsigned int ciss_expose_hidden_physical = 0;
251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical);
253 static unsigned int ciss_nop_message_heartbeat = 0;
254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat);
257 * This tunable can force a particular transport to be used:
260 * 2 : force performant
262 static int ciss_force_transport = 0;
263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport);
266 * This tunable can force a particular interrupt delivery method to be used:
271 static int ciss_force_interrupt = 0;
272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt);
274 /************************************************************************
275 * CISS adapters amazingly don't have a defined programming interface
276 * value. (One could say some very despairing things about PCI and
277 * people just not getting the general idea.) So we are forced to
278 * stick with matching against subvendor/subdevice, and thus have to
279 * be updated for every new CISS adapter that appears.
281 #define CISS_BOARD_UNKNWON 0
282 #define CISS_BOARD_SA5 1
283 #define CISS_BOARD_SA5B 2
284 #define CISS_BOARD_NOMSI (1<<4)
292 } ciss_vendor_data[] = {
293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" },
294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" },
295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" },
296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" },
297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" },
298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" },
299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" },
300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" },
301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" },
302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" },
303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" },
304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" },
305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" },
306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" },
307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" },
308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" },
309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" },
310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" },
311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" },
312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" },
313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" },
314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" },
315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" },
316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" },
317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" },
318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" },
319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" },
320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" },
321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" },
322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" },
323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" },
324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" },
325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" },
326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" },
327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" },
328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" },
329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" },
330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" },
331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" },
332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" },
333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" },
334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" },
335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" },
336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" },
337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" },
338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" },
342 /************************************************************************
343 * Find a match for the device in our list of known adapters.
346 ciss_lookup(device_t dev)
350 for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
351 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
352 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
358 /************************************************************************
359 * Match a known CISS adapter.
362 ciss_probe(device_t dev)
366 i = ciss_lookup(dev);
368 device_set_desc(dev, ciss_vendor_data[i].desc);
369 return(BUS_PROBE_DEFAULT);
374 /************************************************************************
375 * Attach the driver to this adapter.
378 ciss_attach(device_t dev)
380 struct ciss_softc *sc;
386 /* print structure/union sizes */
387 debug_struct(ciss_command);
388 debug_struct(ciss_header);
389 debug_union(ciss_device_address);
390 debug_struct(ciss_cdb);
391 debug_struct(ciss_report_cdb);
392 debug_struct(ciss_notify_cdb);
393 debug_struct(ciss_notify);
394 debug_struct(ciss_message_cdb);
395 debug_struct(ciss_error_info_pointer);
396 debug_struct(ciss_error_info);
397 debug_struct(ciss_sg_entry);
398 debug_struct(ciss_config_table);
399 debug_struct(ciss_bmic_cdb);
400 debug_struct(ciss_bmic_id_ldrive);
401 debug_struct(ciss_bmic_id_lstatus);
402 debug_struct(ciss_bmic_id_table);
403 debug_struct(ciss_bmic_id_pdrive);
404 debug_struct(ciss_bmic_blink_pdrive);
405 debug_struct(ciss_bmic_flush_cache);
406 debug_const(CISS_MAX_REQUESTS);
407 debug_const(CISS_MAX_LOGICAL);
408 debug_const(CISS_INTERRUPT_COALESCE_DELAY);
409 debug_const(CISS_INTERRUPT_COALESCE_COUNT);
410 debug_const(CISS_COMMAND_ALLOC_SIZE);
411 debug_const(CISS_COMMAND_SG_LENGTH);
413 debug_type(cciss_pci_info_struct);
414 debug_type(cciss_coalint_struct);
415 debug_type(cciss_coalint_struct);
416 debug_type(NodeName_type);
417 debug_type(NodeName_type);
418 debug_type(Heartbeat_type);
419 debug_type(BusTypes_type);
420 debug_type(FirmwareVer_type);
421 debug_type(DriverVer_type);
422 debug_type(IOCTL_Command_struct);
425 sc = device_get_softc(dev);
427 lockinit(&sc->ciss_lock, "cissmtx", 0, LK_CANRECURSE);
428 callout_init_mp(&sc->ciss_periodic);
431 * Do PCI-specific init.
433 if ((error = ciss_init_pci(sc)) != 0)
437 * Initialise driver queues.
440 ciss_initq_notify(sc);
443 * Initalize device sysctls.
445 ciss_init_sysctl(sc);
448 * Initialise command/request pool.
450 if ((error = ciss_init_requests(sc)) != 0)
454 * Get adapter information.
456 if ((error = ciss_identify_adapter(sc)) != 0)
460 * Find all the physical devices.
462 if ((error = ciss_init_physical(sc)) != 0)
466 * Build our private table of logical devices.
468 if ((error = ciss_init_logical(sc)) != 0)
472 * Enable interrupts so that the CAM scan can complete.
474 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
477 * Initialise the CAM interface.
479 if ((error = ciss_cam_init(sc)) != 0)
483 * Start the heartbeat routine and event chain.
488 * Create the control device.
490 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev),
491 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
492 "ciss%d", device_get_unit(sc->ciss_dev));
493 sc->ciss_dev_t->si_drv1 = sc;
496 * The adapter is running; synchronous commands can now sleep
497 * waiting for an interrupt to signal completion.
499 sc->ciss_flags |= CISS_FLAG_RUNNING;
501 ciss_spawn_notify_thread(sc);
506 /* ciss_free() expects the mutex to be held */
507 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
513 /************************************************************************
514 * Detach the driver from this adapter.
517 ciss_detach(device_t dev)
519 struct ciss_softc *sc = device_get_softc(dev);
523 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
524 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) {
525 lockmgr(&sc->ciss_lock, LK_RELEASE);
529 /* flush adapter cache */
530 ciss_flush_adapter(sc);
532 /* release all resources. The mutex is released and freed here too. */
538 /************************************************************************
539 * Prepare adapter for system shutdown.
542 ciss_shutdown(device_t dev)
544 struct ciss_softc *sc = device_get_softc(dev);
548 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
549 /* flush adapter cache */
550 ciss_flush_adapter(sc);
552 if (sc->ciss_soft_reset)
554 lockmgr(&sc->ciss_lock, LK_RELEASE);
560 ciss_init_sysctl(struct ciss_softc *sc)
562 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev),
563 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)),
564 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, "");
567 /************************************************************************
568 * Perform PCI-specific attachment actions.
571 ciss_init_pci(struct ciss_softc *sc)
573 uintptr_t cbase, csize, cofs;
574 uint32_t method, supported_methods;
575 int error, sqmask, i;
583 * Work out adapter type.
585 i = ciss_lookup(sc->ciss_dev);
587 ciss_printf(sc, "unknown adapter type\n");
591 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
592 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
593 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
594 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
597 * XXX Big hammer, masks/unmasks all possible interrupts. This should
598 * work on all hardware variants. Need to add code to handle the
599 * "controller crashed" interupt bit that this unmasks.
605 * Allocate register window first (we need this to find the config
609 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
610 if ((sc->ciss_regs_resource =
611 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
612 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) {
613 ciss_printf(sc, "can't allocate register window\n");
616 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
617 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
620 * Find the BAR holding the config structure. If it's not the one
621 * we already mapped for registers, map it too.
623 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
624 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
625 if ((sc->ciss_cfg_resource =
626 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY,
627 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) {
628 ciss_printf(sc, "can't allocate config window\n");
631 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
632 csize = rman_get_end(sc->ciss_cfg_resource) -
633 rman_get_start(sc->ciss_cfg_resource) + 1;
635 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
636 csize = rman_get_end(sc->ciss_regs_resource) -
637 rman_get_start(sc->ciss_regs_resource) + 1;
639 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
642 * Use the base/size/offset values we just calculated to
643 * sanity-check the config structure. If it's OK, point to it.
645 if ((cofs + sizeof(struct ciss_config_table)) > csize) {
646 ciss_printf(sc, "config table outside window\n");
649 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
650 debug(1, "config struct at %p", sc->ciss_cfg);
653 * Calculate the number of request structures/commands we are
654 * going to provide for this adapter.
656 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
659 * Validate the config structure. If we supported other transport
660 * methods, we could select amongst them at this point in time.
662 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
663 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
664 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
665 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
670 * Select the mode of operation, prefer Performant.
672 if (!(sc->ciss_cfg->supported_methods &
673 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) {
674 ciss_printf(sc, "No supported transport layers: 0x%x\n",
675 sc->ciss_cfg->supported_methods);
678 switch (ciss_force_transport) {
680 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE;
683 supported_methods = CISS_TRANSPORT_METHOD_PERF;
686 supported_methods = sc->ciss_cfg->supported_methods;
691 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) {
692 method = CISS_TRANSPORT_METHOD_PERF;
693 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs +
694 sc->ciss_cfg->transport_offset);
695 if (ciss_init_perf(sc)) {
696 supported_methods &= ~method;
699 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) {
700 method = CISS_TRANSPORT_METHOD_SIMPLE;
702 ciss_printf(sc, "No supported transport methods: 0x%x\n",
703 sc->ciss_cfg->supported_methods);
708 * Tell it we're using the low 4GB of RAM. Set the default interrupt
709 * coalescing options.
711 sc->ciss_cfg->requested_method = method;
712 sc->ciss_cfg->command_physlimit = 0;
713 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
714 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
716 if (ciss_update_config(sc)) {
717 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
718 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
721 if ((sc->ciss_cfg->active_method & method) == 0) {
722 supported_methods &= ~method;
723 if (supported_methods == 0) {
724 ciss_printf(sc, "adapter refuses to go into available transports "
725 "mode (0x%x, 0x%x)\n", supported_methods,
726 sc->ciss_cfg->active_method);
733 * Wait for the adapter to come ready.
735 if ((error = ciss_wait_adapter(sc)) != 0)
738 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal
739 * interrupts have a rid of 0, this will be overridden if MSIX is used.
741 sc->ciss_irq_rid[0] = 0;
742 if (method == CISS_TRANSPORT_METHOD_PERF) {
743 ciss_printf(sc, "PERFORMANT Transport\n");
744 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) {
745 intr = ciss_perf_msi_intr;
747 intr = ciss_perf_intr;
749 /* XXX The docs say that the 0x01 bit is only for SAS controllers.
750 * Unfortunately, there is no good way to know if this is a SAS
751 * controller. Hopefully enabling this bit universally will work OK.
752 * It seems to work fine for SA6i controllers.
754 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI;
757 ciss_printf(sc, "SIMPLE Transport\n");
758 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */
759 if (ciss_force_interrupt == 2)
760 /* If this fails, we automatically revert to INTx */
762 sc->ciss_perf = NULL;
764 sc->ciss_interrupt_mask = sqmask;
767 * Turn off interrupts before we go routing anything.
769 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
772 * Allocate and set up our interrupt.
774 #ifdef __DragonFly__ /* DragonFly specific MSI setup */
775 use_msi = (intr == ciss_perf_msi_intr);
777 sc->ciss_irq_rid[0] = 0;
778 sc->ciss_irq_type = pci_alloc_1intr(sc->ciss_dev, use_msi,
779 &sc->ciss_irq_rid[0], &irq_flags);
780 if ((sc->ciss_irq_resource =
781 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0],
782 irq_flags)) == NULL) {
783 ciss_printf(sc, "can't allocate interrupt\n");
787 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource,
788 INTR_MPSAFE, intr, sc,
789 &sc->ciss_intr, NULL)) {
790 ciss_printf(sc, "can't set up interrupt\n");
795 * Allocate the parent bus DMA tag appropriate for our PCI
798 * Note that "simple" adapters can only address within a 32-bit
801 if (bus_dma_tag_create(NULL, /* PCI parent */
802 1, 0, /* alignment, boundary */
803 BUS_SPACE_MAXADDR, /* lowaddr */
804 BUS_SPACE_MAXADDR, /* highaddr */
805 NULL, NULL, /* filter, filterarg */
806 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
807 CISS_MAX_SG_ELEMENTS, /* nsegments */
808 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
810 &sc->ciss_parent_dmat)) {
811 ciss_printf(sc, "can't allocate parent DMA tag\n");
816 * Create DMA tag for mapping buffers into adapter-addressable
819 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
820 1, 0, /* alignment, boundary */
821 BUS_SPACE_MAXADDR, /* lowaddr */
822 BUS_SPACE_MAXADDR, /* highaddr */
823 NULL, NULL, /* filter, filterarg */
824 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */
825 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
826 BUS_DMA_ALLOCNOW, /* flags */
827 &sc->ciss_buffer_dmat)) {
828 ciss_printf(sc, "can't allocate buffer DMA tag\n");
834 /************************************************************************
835 * Setup MSI/MSIX operation (Performant only)
836 * Four interrupts are available, but we only use 1 right now. If MSI-X
837 * isn't avaialble, try using MSI instead.
840 ciss_setup_msix(struct ciss_softc *sc)
844 /* Weed out devices that don't actually support MSI */
845 i = ciss_lookup(sc->ciss_dev);
846 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI)
849 #if 0 /* XXX swildner */
851 * Only need to use the minimum number of MSI vectors, as the driver
852 * doesn't support directed MSIX interrupts.
854 val = pci_msix_count(sc->ciss_dev);
855 if (val < CISS_MSI_COUNT) {
856 val = pci_msi_count(sc->ciss_dev);
857 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val);
858 if (val < CISS_MSI_COUNT)
861 val = MIN(val, CISS_MSI_COUNT);
862 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) {
863 if (pci_alloc_msi(sc->ciss_dev, &val) != 0)
871 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val,
872 (val != 1) ? "s" : "");
874 for (i = 0; i < val; i++)
875 sc->ciss_irq_rid[i] = i + 1;
881 /************************************************************************
882 * Setup the Performant structures.
885 ciss_init_perf(struct ciss_softc *sc)
887 struct ciss_perf_config *pc = sc->ciss_perf;
891 * Create the DMA tag for the reply queue.
893 reply_size = sizeof(uint64_t) * sc->ciss_max_requests;
894 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
895 1, 0, /* alignment, boundary */
896 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
897 BUS_SPACE_MAXADDR, /* highaddr */
898 NULL, NULL, /* filter, filterarg */
899 reply_size, 1, /* maxsize, nsegments */
900 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
902 &sc->ciss_reply_dmat)) {
903 ciss_printf(sc, "can't allocate reply DMA tag\n");
907 * Allocate memory and make it available for DMA.
909 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply,
910 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) {
911 ciss_printf(sc, "can't allocate reply memory\n");
914 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply,
915 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0);
916 bzero(sc->ciss_reply, reply_size);
918 sc->ciss_cycle = 0x1;
922 * Preload the fetch table with common command sizes. This allows the
923 * hardware to not waste bus cycles for typical i/o commands, but also not
924 * tax the driver to be too exact in choosing sizes. The table is optimized
925 * for page-aligned i/o's, but since most i/o comes from the various pagers,
926 * it's a reasonable assumption to make.
928 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16;
929 pc->fetch_count[CISS_SG_FETCH_1] =
930 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16;
931 pc->fetch_count[CISS_SG_FETCH_2] =
932 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16;
933 pc->fetch_count[CISS_SG_FETCH_4] =
934 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16;
935 pc->fetch_count[CISS_SG_FETCH_8] =
936 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16;
937 pc->fetch_count[CISS_SG_FETCH_16] =
938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16;
939 pc->fetch_count[CISS_SG_FETCH_32] =
940 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16;
941 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16;
943 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */
944 pc->rq_count = 1; /* XXX Hardcode for a single queue */
947 pc->rq[0].rq_addr_hi = 0x0;
948 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys;
953 /************************************************************************
954 * Wait for the adapter to come ready.
957 ciss_wait_adapter(struct ciss_softc *sc)
964 * Wait for the adapter to come ready.
966 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
967 ciss_printf(sc, "waiting for adapter to come ready...\n");
968 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
969 DELAY(1000000); /* one second */
971 ciss_printf(sc, "timed out waiting for adapter to come ready\n");
979 /************************************************************************
980 * Flush the adapter cache.
983 ciss_flush_adapter(struct ciss_softc *sc)
985 struct ciss_request *cr;
986 struct ciss_bmic_flush_cache *cbfc;
987 int error, command_status;
995 * Build a BMIC request to flush the cache. We don't disable
996 * it, as we may be going to do more I/O (eg. we are emulating
997 * the Synchronise Cache command).
999 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1000 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
1001 (void **)&cbfc, sizeof(*cbfc))) != 0)
1005 * Submit the request and wait for it to complete.
1007 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1008 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
1015 ciss_report_request(cr, &command_status, NULL);
1016 switch(command_status) {
1017 case CISS_CMD_STATUS_SUCCESS:
1020 ciss_printf(sc, "error flushing cache (%s)\n",
1021 ciss_name_command_status(command_status));
1028 kfree(cbfc, CISS_MALLOC_CLASS);
1030 ciss_release_request(cr);
1035 ciss_soft_reset(struct ciss_softc *sc)
1037 struct ciss_request *cr = NULL;
1038 struct ciss_command *cc;
1041 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1042 /* only reset proxy controllers */
1043 if (sc->ciss_controllers[i].physical.bus == 0)
1046 if ((error = ciss_get_request(sc, &cr)) != 0)
1049 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET,
1054 cc->header.address = sc->ciss_controllers[i];
1056 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0)
1059 ciss_release_request(cr);
1063 ciss_printf(sc, "error resetting controller (%d)\n", error);
1066 ciss_release_request(cr);
1069 /************************************************************************
1070 * Allocate memory for the adapter command structures, initialise
1071 * the request structures.
1073 * Note that the entire set of commands are allocated in a single
1077 ciss_init_requests(struct ciss_softc *sc)
1079 struct ciss_request *cr;
1085 ciss_printf(sc, "using %d of %d available commands\n",
1086 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
1089 * Create the DMA tag for commands.
1091 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
1092 32, 0, /* alignment, boundary */
1093 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1094 BUS_SPACE_MAXADDR, /* highaddr */
1095 NULL, NULL, /* filter, filterarg */
1096 CISS_COMMAND_ALLOC_SIZE *
1097 sc->ciss_max_requests, 1, /* maxsize, nsegments */
1098 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1100 &sc->ciss_command_dmat)) {
1101 ciss_printf(sc, "can't allocate command DMA tag\n");
1105 * Allocate memory and make it available for DMA.
1107 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
1108 BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
1109 ciss_printf(sc, "can't allocate command memory\n");
1112 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command,
1113 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests,
1114 ciss_command_map_helper, &sc->ciss_command_phys, 0);
1115 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
1118 * Set up the request and command structures, push requests onto
1121 for (i = 1; i < sc->ciss_max_requests; i++) {
1122 cr = &sc->ciss_request[i];
1125 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command +
1126 CISS_COMMAND_ALLOC_SIZE * i);
1127 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i;
1128 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap);
1129 ciss_enqueue_free(cr);
1135 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1140 *addr = segs[0].ds_addr;
1143 /************************************************************************
1144 * Identify the adapter, print some information about it.
1147 ciss_identify_adapter(struct ciss_softc *sc)
1149 struct ciss_request *cr;
1150 int error, command_status;
1157 * Get a request, allocate storage for the adapter data.
1159 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
1160 (void **)&sc->ciss_id,
1161 sizeof(*sc->ciss_id))) != 0)
1165 * Submit the request and wait for it to complete.
1167 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1168 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
1175 ciss_report_request(cr, &command_status, NULL);
1176 switch(command_status) {
1177 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1179 case CISS_CMD_STATUS_DATA_UNDERRUN:
1180 case CISS_CMD_STATUS_DATA_OVERRUN:
1181 ciss_printf(sc, "data over/underrun reading adapter information\n");
1183 ciss_printf(sc, "error reading adapter information (%s)\n",
1184 ciss_name_command_status(command_status));
1189 /* sanity-check reply */
1190 if (!sc->ciss_id->big_map_supported) {
1191 ciss_printf(sc, "adapter does not support BIG_MAP\n");
1197 /* XXX later revisions may not need this */
1198 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
1201 /* XXX only really required for old 5300 adapters? */
1202 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
1204 /* print information */
1206 #if 0 /* XXX proxy volumes??? */
1207 ciss_printf(sc, " %d logical drive%s configured\n",
1208 sc->ciss_id->configured_logical_drives,
1209 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
1211 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
1212 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
1214 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
1215 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
1216 ciss_printf(sc, " supported I/O methods 0x%b\n",
1217 sc->ciss_cfg->supported_methods,
1218 "\20\1READY\2simple\3performant\4MEMQ\n");
1219 ciss_printf(sc, " active I/O method 0x%b\n",
1220 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
1221 ciss_printf(sc, " 4G page base 0x%08x\n",
1222 sc->ciss_cfg->command_physlimit);
1223 ciss_printf(sc, " interrupt coalesce delay %dus\n",
1224 sc->ciss_cfg->interrupt_coalesce_delay);
1225 ciss_printf(sc, " interrupt coalesce count %d\n",
1226 sc->ciss_cfg->interrupt_coalesce_count);
1227 ciss_printf(sc, " max outstanding commands %d\n",
1228 sc->ciss_cfg->max_outstanding_commands);
1229 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
1230 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
1231 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
1232 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
1237 if (sc->ciss_id != NULL) {
1238 kfree(sc->ciss_id, CISS_MALLOC_CLASS);
1243 ciss_release_request(cr);
1247 /************************************************************************
1248 * Helper routine for generating a list of logical and physical luns.
1250 static struct ciss_lun_report *
1251 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits)
1253 struct ciss_request *cr;
1254 struct ciss_command *cc;
1255 struct ciss_report_cdb *crc;
1256 struct ciss_lun_report *cll;
1267 * Get a request, allocate storage for the address list.
1269 if ((error = ciss_get_request(sc, &cr)) != 0)
1271 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address);
1272 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1275 * Build the Report Logical/Physical LUNs command.
1279 cr->cr_length = report_size;
1280 cr->cr_flags = CISS_REQ_DATAIN;
1282 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
1283 cc->header.address.physical.bus = 0;
1284 cc->header.address.physical.target = 0;
1285 cc->cdb.cdb_length = sizeof(*crc);
1286 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1287 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1288 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1289 cc->cdb.timeout = 30; /* XXX better suggestions? */
1291 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
1292 bzero(crc, sizeof(*crc));
1293 crc->opcode = opcode;
1294 crc->length = htonl(report_size); /* big-endian field */
1295 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
1298 * Submit the request and wait for it to complete. (timeout
1299 * here should be much greater than above)
1301 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1302 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error);
1307 * Check response. Note that data over/underrun is OK.
1309 ciss_report_request(cr, &command_status, NULL);
1310 switch(command_status) {
1311 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1312 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
1314 case CISS_CMD_STATUS_DATA_OVERRUN:
1315 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n",
1319 ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
1320 ciss_name_command_status(command_status));
1324 ciss_release_request(cr);
1329 ciss_release_request(cr);
1330 if (error && cll != NULL) {
1331 kfree(cll, CISS_MALLOC_CLASS);
1337 /************************************************************************
1338 * Find logical drives on the adapter.
1341 ciss_init_logical(struct ciss_softc *sc)
1343 struct ciss_lun_report *cll;
1344 int error = 0, i, j;
1349 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
1356 /* sanity-check reply */
1357 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1358 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
1359 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
1360 ndrives, CISS_MAX_LOGICAL);
1366 * Save logical drive information.
1369 ciss_printf(sc, "%d logical drive%s\n",
1370 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : "");
1374 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *),
1375 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1377 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
1378 sc->ciss_logical[i] =
1379 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive),
1380 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1382 for (j = 0; j < CISS_MAX_LOGICAL; j++)
1383 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT;
1387 for (i = 0; i < CISS_MAX_LOGICAL; i++) {
1389 struct ciss_ldrive *ld;
1392 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
1393 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
1394 ld = &sc->ciss_logical[bus][target];
1396 ld->cl_address = cll->lun[i];
1397 ld->cl_controller = &sc->ciss_controllers[bus];
1398 if (ciss_identify_logical(sc, ld) != 0)
1401 * If the drive has had media exchanged, we should bring it online.
1403 if (ld->cl_lstatus->media_exchanged)
1404 ciss_accept_media(sc, ld);
1411 kfree(cll, CISS_MALLOC_CLASS);
1416 ciss_init_physical(struct ciss_softc *sc)
1418 struct ciss_lun_report *cll;
1427 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
1434 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1437 ciss_printf(sc, "%d physical device%s\n",
1438 nphys, (nphys > 1 || nphys == 0) ? "s" : "");
1442 * Figure out the bus mapping.
1443 * Logical buses include both the local logical bus for local arrays and
1444 * proxy buses for remote arrays. Physical buses are numbered by the
1445 * controller and represent physical buses that hold physical devices.
1446 * We shift these bus numbers so that everything fits into a single flat
1447 * numbering space for CAM. Logical buses occupy the first 32 CAM bus
1448 * numbers, and the physical bus numbers are shifted to be above that.
1449 * This results in the various driver arrays being indexed as follows:
1451 * ciss_controllers[] - indexed by logical bus
1452 * ciss_cam_sim[] - indexed by both logical and physical, with physical
1453 * being shifted by 32.
1454 * ciss_logical[][] - indexed by logical bus
1455 * ciss_physical[][] - indexed by physical bus
1457 * XXX This is getting more and more hackish. CISS really doesn't play
1458 * well with a standard SCSI model; devices are addressed via magic
1459 * cookies, not via b/t/l addresses. Since there is no way to store
1460 * the cookie in the CAM device object, we have to keep these lookup
1461 * tables handy so that the devices can be found quickly at the cost
1462 * of wasting memory and having a convoluted lookup scheme. This
1463 * driver should probably be converted to block interface.
1466 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy
1467 * controller. A proxy controller is another physical controller
1468 * behind the primary PCI controller. We need to know about this
1469 * so that BMIC commands can be properly targeted. There can be
1470 * proxy controllers attached to a single PCI controller, so
1471 * find the highest numbered one so the array can be properly
1474 sc->ciss_max_logical_bus = 1;
1475 for (i = 0; i < nphys; i++) {
1476 if (cll->lun[i].physical.extra_address == 0) {
1477 bus = cll->lun[i].physical.bus;
1478 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1;
1480 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address);
1481 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus);
1485 sc->ciss_controllers =
1486 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address),
1487 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1489 /* setup a map of controller addresses */
1490 for (i = 0; i < nphys; i++) {
1491 if (cll->lun[i].physical.extra_address == 0) {
1492 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i];
1497 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *),
1498 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1500 for (i = 0; i < sc->ciss_max_physical_bus; i++) {
1501 sc->ciss_physical[i] =
1502 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT,
1503 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
1506 ciss_filter_physical(sc, cll);
1510 kfree(cll, CISS_MALLOC_CLASS);
1516 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll)
1522 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
1523 for (i = 0; i < nphys; i++) {
1524 if (cll->lun[i].physical.extra_address == 0)
1528 * Filter out devices that we don't want. Level 3 LUNs could
1529 * probably be supported, but the docs don't give enough of a
1532 * The mode field of the physical address is likely set to have
1533 * hard disks masked out. Honor it unless the user has overridden
1534 * us with the tunable. We also munge the inquiry data for these
1535 * disks so that they only show up as passthrough devices. Keeping
1536 * them visible in this fashion is useful for doing things like
1537 * flashing firmware.
1539 ea = cll->lun[i].physical.extra_address;
1540 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) ||
1541 (CISS_EXTRA_MODE2(ea) == 0x3))
1543 if ((ciss_expose_hidden_physical == 0) &&
1544 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL))
1548 * Note: CISS firmware numbers physical busses starting at '1', not
1549 * '0'. This numbering is internal to the firmware and is only
1550 * used as a hint here.
1552 bus = CISS_EXTRA_BUS2(ea) - 1;
1553 target = CISS_EXTRA_TARGET2(ea);
1554 sc->ciss_physical[bus][target].cp_address = cll->lun[i];
1555 sc->ciss_physical[bus][target].cp_online = 1;
1562 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1564 struct ciss_request *cr;
1565 struct ciss_command *cc;
1566 struct scsi_inquiry *inq;
1572 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry));
1574 if ((error = ciss_get_request(sc, &cr)) != 0)
1578 cr->cr_data = &ld->cl_geometry;
1579 cr->cr_length = sizeof(ld->cl_geometry);
1580 cr->cr_flags = CISS_REQ_DATAIN;
1582 cc->header.address = ld->cl_address;
1583 cc->cdb.cdb_length = 6;
1584 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
1585 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
1586 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
1587 cc->cdb.timeout = 30;
1589 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]);
1590 inq->opcode = INQUIRY;
1591 inq->byte2 = SI_EVPD;
1592 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY;
1593 inq->length = sizeof(ld->cl_geometry);
1595 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1596 ciss_printf(sc, "error getting geometry (%d)\n", error);
1600 ciss_report_request(cr, &command_status, NULL);
1601 switch(command_status) {
1602 case CISS_CMD_STATUS_SUCCESS:
1603 case CISS_CMD_STATUS_DATA_UNDERRUN:
1605 case CISS_CMD_STATUS_DATA_OVERRUN:
1606 ciss_printf(sc, "WARNING: Data overrun\n");
1609 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n",
1610 ciss_name_command_status(command_status));
1616 ciss_release_request(cr);
1619 /************************************************************************
1620 * Identify a logical drive, initialise state related to it.
1623 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
1625 struct ciss_request *cr;
1626 struct ciss_command *cc;
1627 struct ciss_bmic_cdb *cbc;
1628 int error, command_status;
1635 * Build a BMIC request to fetch the drive ID.
1637 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
1638 (void **)&ld->cl_ldrive,
1639 sizeof(*ld->cl_ldrive))) != 0)
1642 cc->header.address = *ld->cl_controller; /* target controller */
1643 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1644 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1647 * Submit the request and wait for it to complete.
1649 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1650 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
1657 ciss_report_request(cr, &command_status, NULL);
1658 switch(command_status) {
1659 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1661 case CISS_CMD_STATUS_DATA_UNDERRUN:
1662 case CISS_CMD_STATUS_DATA_OVERRUN:
1663 ciss_printf(sc, "data over/underrun reading logical drive ID\n");
1665 ciss_printf(sc, "error reading logical drive ID (%s)\n",
1666 ciss_name_command_status(command_status));
1670 ciss_release_request(cr);
1674 * Build a CISS BMIC command to get the logical drive status.
1676 if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
1680 * Get the logical drive geometry.
1682 if ((error = ciss_inquiry_logical(sc, ld)) != 0)
1686 * Print the drive's basic characteristics.
1689 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ",
1690 CISS_LUN_TO_BUS(ld->cl_address.logical.lun),
1691 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun),
1692 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
1693 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
1694 ld->cl_ldrive->block_size));
1696 ciss_print_ldrive(sc, ld);
1700 /* make the drive not-exist */
1701 ld->cl_status = CISS_LD_NONEXISTENT;
1702 if (ld->cl_ldrive != NULL) {
1703 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS);
1704 ld->cl_ldrive = NULL;
1706 if (ld->cl_lstatus != NULL) {
1707 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS);
1708 ld->cl_lstatus = NULL;
1712 ciss_release_request(cr);
1717 /************************************************************************
1718 * Get status for a logical drive.
1720 * XXX should we also do this in response to Test Unit Ready?
1723 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
1725 struct ciss_request *cr;
1726 struct ciss_command *cc;
1727 struct ciss_bmic_cdb *cbc;
1728 int error, command_status;
1731 * Build a CISS BMIC command to get the logical drive status.
1733 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
1734 (void **)&ld->cl_lstatus,
1735 sizeof(*ld->cl_lstatus))) != 0)
1738 cc->header.address = *ld->cl_controller; /* target controller */
1739 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1740 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1743 * Submit the request and wait for it to complete.
1745 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1746 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
1753 ciss_report_request(cr, &command_status, NULL);
1754 switch(command_status) {
1755 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
1757 case CISS_CMD_STATUS_DATA_UNDERRUN:
1758 case CISS_CMD_STATUS_DATA_OVERRUN:
1759 ciss_printf(sc, "data over/underrun reading logical drive status\n");
1761 ciss_printf(sc, "error reading logical drive status (%s)\n",
1762 ciss_name_command_status(command_status));
1768 * Set the drive's summary status based on the returned status.
1770 * XXX testing shows that a failed JBOD drive comes back at next
1771 * boot in "queued for expansion" mode. WTF?
1773 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
1777 ciss_release_request(cr);
1781 /************************************************************************
1782 * Notify the adapter of a config update.
1785 ciss_update_config(struct ciss_softc *sc)
1791 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
1792 for (i = 0; i < 1000; i++) {
1793 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
1794 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
1802 /************************************************************************
1803 * Accept new media into a logical drive.
1805 * XXX The drive has previously been offline; it would be good if we
1806 * could make sure it's not open right now.
1809 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld)
1811 struct ciss_request *cr;
1812 struct ciss_command *cc;
1813 struct ciss_bmic_cdb *cbc;
1815 int error = 0, ldrive;
1817 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun);
1819 debug(0, "bringing logical drive %d back online", ldrive);
1822 * Build a CISS BMIC command to bring the drive back online.
1824 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
1828 cc->header.address = *ld->cl_controller; /* target controller */
1829 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
1830 cbc->log_drive = ldrive;
1833 * Submit the request and wait for it to complete.
1835 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
1836 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error);
1843 ciss_report_request(cr, &command_status, NULL);
1844 switch(command_status) {
1845 case CISS_CMD_STATUS_SUCCESS: /* all OK */
1846 /* we should get a logical drive status changed event here */
1849 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
1850 ciss_name_command_status(command_status));
1856 ciss_release_request(cr);
1860 /************************************************************************
1861 * Release adapter resources.
1864 ciss_free(struct ciss_softc *sc)
1866 struct ciss_request *cr;
1871 /* we're going away */
1872 sc->ciss_flags |= CISS_FLAG_ABORTING;
1874 /* terminate the periodic heartbeat routine */
1875 callout_stop(&sc->ciss_periodic);
1877 /* cancel the Event Notify chain */
1878 ciss_notify_abort(sc);
1880 ciss_kill_notify_thread(sc);
1882 /* disconnect from CAM */
1883 if (sc->ciss_cam_sim) {
1884 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
1885 if (sc->ciss_cam_sim[i]) {
1886 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1887 cam_sim_free(sc->ciss_cam_sim[i]);
1890 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
1891 CISS_PHYSICAL_BASE; i++) {
1892 if (sc->ciss_cam_sim[i]) {
1893 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i]));
1894 cam_sim_free(sc->ciss_cam_sim[i]);
1897 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS);
1899 if (sc->ciss_cam_devq)
1900 cam_simq_release(sc->ciss_cam_devq);
1902 /* remove the control device */
1903 lockmgr(&sc->ciss_lock, LK_RELEASE);
1904 if (sc->ciss_dev_t != NULL)
1905 destroy_dev(sc->ciss_dev_t);
1907 /* Final cleanup of the callout. */
1908 callout_stop_sync(&sc->ciss_periodic);
1909 lockuninit(&sc->ciss_lock);
1911 /* free the controller data */
1912 if (sc->ciss_id != NULL)
1913 kfree(sc->ciss_id, CISS_MALLOC_CLASS);
1915 /* release I/O resources */
1916 if (sc->ciss_regs_resource != NULL)
1917 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1918 sc->ciss_regs_rid, sc->ciss_regs_resource);
1919 if (sc->ciss_cfg_resource != NULL)
1920 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
1921 sc->ciss_cfg_rid, sc->ciss_cfg_resource);
1922 if (sc->ciss_intr != NULL)
1923 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
1924 if (sc->ciss_irq_resource != NULL)
1925 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
1926 sc->ciss_irq_rid[0], sc->ciss_irq_resource);
1927 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI)
1928 pci_release_msi(sc->ciss_dev);
1930 while ((cr = ciss_dequeue_free(sc)) != NULL)
1931 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap);
1932 if (sc->ciss_buffer_dmat)
1933 bus_dma_tag_destroy(sc->ciss_buffer_dmat);
1935 /* destroy command memory and DMA tag */
1936 if (sc->ciss_command != NULL) {
1937 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
1938 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
1940 if (sc->ciss_command_dmat)
1941 bus_dma_tag_destroy(sc->ciss_command_dmat);
1943 if (sc->ciss_reply) {
1944 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map);
1945 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map);
1947 if (sc->ciss_reply_dmat)
1948 bus_dma_tag_destroy(sc->ciss_reply_dmat);
1950 /* destroy DMA tags */
1951 if (sc->ciss_parent_dmat)
1952 bus_dma_tag_destroy(sc->ciss_parent_dmat);
1953 if (sc->ciss_logical) {
1954 for (i = 0; i <= sc->ciss_max_logical_bus; i++) {
1955 for (j = 0; j < CISS_MAX_LOGICAL; j++) {
1956 if (sc->ciss_logical[i][j].cl_ldrive)
1957 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS);
1958 if (sc->ciss_logical[i][j].cl_lstatus)
1959 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS);
1961 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS);
1963 kfree(sc->ciss_logical, CISS_MALLOC_CLASS);
1966 if (sc->ciss_physical) {
1967 for (i = 0; i < sc->ciss_max_physical_bus; i++)
1968 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS);
1969 kfree(sc->ciss_physical, CISS_MALLOC_CLASS);
1972 if (sc->ciss_controllers)
1973 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS);
1976 /************************************************************************
1977 * Give a command to the adapter.
1979 * Note that this uses the simple transport layer directly. If we
1980 * want to add support for other layers, we'll need a switch of some
1983 * Note that the simple transport layer has no way of refusing a
1984 * command; we only have as many request structures as the adapter
1985 * supports commands, so we don't have to check (this presumes that
1986 * the adapter can handle commands as fast as we throw them at it).
1989 ciss_start(struct ciss_request *cr)
1992 struct ciss_command *cc;
1999 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
2002 * Map the request's data.
2004 if ((error = ciss_map_request(cr)))
2008 ciss_print_request(cr);
2014 /************************************************************************
2015 * Fetch completed request(s) from the adapter, queue them for
2016 * completion handling.
2018 * Note that this uses the simple transport layer directly. If we
2019 * want to add support for other layers, we'll need a switch of some
2022 * Note that the simple transport mechanism does not require any
2023 * reentrancy protection; the OPQ read is atomic. If there is a
2024 * chance of a race with something else that might move the request
2025 * off the busy list, then we will have to lock against that
2026 * (eg. timeouts, etc.)
2029 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh)
2031 struct ciss_request *cr;
2032 struct ciss_command *cc;
2033 u_int32_t tag, index;
2038 * Loop quickly taking requests from the adapter and moving them
2039 * to the completed queue.
2043 tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
2044 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
2047 debug(2, "completed command %d%s", index,
2048 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2049 if (index >= sc->ciss_max_requests) {
2050 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2053 cr = &(sc->ciss_request[index]);
2055 cc->header.host_tag = tag; /* not updated by adapter */
2056 ciss_enqueue_complete(cr, qh);
2062 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh)
2064 struct ciss_request *cr;
2065 struct ciss_command *cc;
2066 u_int32_t tag, index;
2071 * Loop quickly taking requests from the adapter and moving them
2072 * to the completed queue.
2075 tag = sc->ciss_reply[sc->ciss_rqidx];
2076 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle)
2079 debug(2, "completed command %d%s\n", index,
2080 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
2081 if (index < sc->ciss_max_requests) {
2082 cr = &(sc->ciss_request[index]);
2084 cc->header.host_tag = tag; /* not updated by adapter */
2085 ciss_enqueue_complete(cr, qh);
2087 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
2089 if (++sc->ciss_rqidx == sc->ciss_max_requests) {
2091 sc->ciss_cycle ^= 1;
2097 /************************************************************************
2098 * Take an interrupt from the adapter.
2101 ciss_intr(void *arg)
2104 struct ciss_softc *sc = (struct ciss_softc *)arg;
2107 * The only interrupt we recognise indicates that there are
2108 * entries in the outbound post queue.
2112 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2113 ciss_complete(sc, &qh);
2114 lockmgr(&sc->ciss_lock, LK_RELEASE);
2118 ciss_perf_intr(void *arg)
2120 struct ciss_softc *sc = (struct ciss_softc *)arg;
2122 /* Clear the interrupt and flush the bridges. Docs say that the flush
2123 * needs to be done twice, which doesn't seem right.
2125 CISS_TL_PERF_CLEAR_INT(sc);
2126 CISS_TL_PERF_FLUSH_INT(sc);
2128 ciss_perf_msi_intr(sc);
2132 ciss_perf_msi_intr(void *arg)
2135 struct ciss_softc *sc = (struct ciss_softc *)arg;
2138 ciss_perf_done(sc, &qh);
2139 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2140 ciss_complete(sc, &qh);
2141 lockmgr(&sc->ciss_lock, LK_RELEASE);
2145 /************************************************************************
2146 * Process completed requests.
2148 * Requests can be completed in three fashions:
2150 * - by invoking a callback function (cr_complete is non-null)
2151 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
2152 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
2155 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh)
2157 struct ciss_request *cr;
2162 * Loop taking requests off the completed queue and performing
2163 * completion processing on them.
2166 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL)
2168 ciss_unmap_request(cr);
2170 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
2171 ciss_printf(sc, "WARNING: completing non-busy request\n");
2172 cr->cr_flags &= ~CISS_REQ_BUSY;
2175 * If the request has a callback, invoke it.
2177 if (cr->cr_complete != NULL) {
2178 cr->cr_complete(cr);
2183 * If someone is sleeping on this request, wake them up.
2185 if (cr->cr_flags & CISS_REQ_SLEEP) {
2186 cr->cr_flags &= ~CISS_REQ_SLEEP;
2192 * If someone is polling this request for completion, signal.
2194 if (cr->cr_flags & CISS_REQ_POLL) {
2195 cr->cr_flags &= ~CISS_REQ_POLL;
2200 * Give up and throw the request back on the free queue. This
2201 * should never happen; resources will probably be lost.
2203 ciss_printf(sc, "WARNING: completed command with no submitter\n");
2204 ciss_enqueue_free(cr);
2208 /************************************************************************
2209 * Report on the completion status of a request, and pass back SCSI
2210 * and command status values.
2213 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func)
2215 struct ciss_command *cc;
2216 struct ciss_error_info *ce;
2221 ce = (struct ciss_error_info *)&(cc->sg[0]);
2224 * We don't consider data under/overrun an error for the Report
2225 * Logical/Physical LUNs commands.
2227 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
2228 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) ||
2229 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) &&
2230 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
2231 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) ||
2232 (cc->cdb.cdb[0] == INQUIRY))) {
2233 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
2234 debug(2, "ignoring irrelevant under/overrun error");
2238 * Check the command's error bit, if clear, there's no status and
2241 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
2242 if (scsi_status != NULL)
2243 *scsi_status = SCSI_STATUS_OK;
2244 if (command_status != NULL)
2245 *command_status = CISS_CMD_STATUS_SUCCESS;
2248 if (command_status != NULL)
2249 *command_status = ce->command_status;
2250 if (scsi_status != NULL) {
2251 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
2252 *scsi_status = ce->scsi_status;
2258 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
2259 ce->command_status, ciss_name_command_status(ce->command_status),
2261 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
2262 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n",
2263 ce->additional_error_info.invalid_command.offense_size,
2264 ce->additional_error_info.invalid_command.offense_offset,
2265 ce->additional_error_info.invalid_command.offense_value,
2270 ciss_print_request(cr);
2275 /************************************************************************
2276 * Issue a request and don't return until it's completed.
2278 * Depending on adapter status, we may poll or sleep waiting for
2282 ciss_synch_request(struct ciss_request *cr, int timeout)
2284 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
2285 return(ciss_wait_request(cr, timeout));
2287 return(ciss_poll_request(cr, timeout));
2291 /************************************************************************
2292 * Issue a request and poll for completion.
2294 * Timeout in milliseconds.
2297 ciss_poll_request(struct ciss_request *cr, int timeout)
2300 struct ciss_softc *sc;
2307 cr->cr_flags |= CISS_REQ_POLL;
2308 if ((error = ciss_start(cr)) != 0)
2313 ciss_perf_done(sc, &qh);
2316 ciss_complete(sc, &qh);
2317 if (!(cr->cr_flags & CISS_REQ_POLL))
2320 } while (timeout-- >= 0);
2321 return(EWOULDBLOCK);
2324 /************************************************************************
2325 * Issue a request and sleep waiting for completion.
2327 * Timeout in milliseconds. Note that a spurious wakeup will reset
2331 ciss_wait_request(struct ciss_request *cr, int timeout)
2337 cr->cr_flags |= CISS_REQ_SLEEP;
2338 if ((error = ciss_start(cr)) != 0)
2341 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) {
2342 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000);
2348 /************************************************************************
2349 * Abort a request. Note that a potential exists here to race the
2350 * request being completed; the caller must deal with this.
2353 ciss_abort_request(struct ciss_request *ar)
2355 struct ciss_request *cr;
2356 struct ciss_command *cc;
2357 struct ciss_message_cdb *cmc;
2363 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
2366 /* build the abort command */
2368 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
2369 cc->header.address.physical.target = 0;
2370 cc->header.address.physical.bus = 0;
2371 cc->cdb.cdb_length = sizeof(*cmc);
2372 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
2373 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2374 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
2375 cc->cdb.timeout = 30;
2377 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
2378 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
2379 cmc->type = CISS_MESSAGE_ABORT_TASK;
2380 cmc->abort_tag = ar->cr_tag; /* endianness?? */
2383 * Send the request and wait for a response. If we believe we
2384 * aborted the request OK, clear the flag that indicates it's
2387 error = ciss_synch_request(cr, 35 * 1000);
2389 error = ciss_report_request(cr, NULL, NULL);
2390 ciss_release_request(cr);
2397 /************************************************************************
2398 * Fetch and initialise a request
2401 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
2403 struct ciss_request *cr;
2408 * Get a request and clean it up.
2410 if ((cr = ciss_dequeue_free(sc)) == NULL)
2415 cr->cr_complete = NULL;
2416 cr->cr_private = NULL;
2417 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */
2419 ciss_preen_command(cr);
2425 ciss_preen_command(struct ciss_request *cr)
2427 struct ciss_command *cc;
2431 * Clean up the command structure.
2433 * Note that we set up the error_info structure here, since the
2434 * length can be overwritten by any command.
2437 cc->header.sg_in_list = 0; /* kinda inefficient this way */
2438 cc->header.sg_total = 0;
2439 cc->header.host_tag = cr->cr_tag << 2;
2440 cc->header.host_tag_zeroes = 0;
2441 cmdphys = cr->cr_ccphys;
2442 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
2443 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
2446 /************************************************************************
2447 * Release a request to the free list.
2450 ciss_release_request(struct ciss_request *cr)
2454 /* release the request to the free queue */
2455 ciss_requeue_free(cr);
2458 /************************************************************************
2459 * Allocate a request that will be used to send a BMIC command. Do some
2460 * of the common setup here to avoid duplicating it everywhere else.
2463 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
2464 int opcode, void **bufp, size_t bufsize)
2466 struct ciss_request *cr;
2467 struct ciss_command *cc;
2468 struct ciss_bmic_cdb *cbc;
2481 if ((error = ciss_get_request(sc, &cr)) != 0)
2485 * Allocate data storage if requested, determine the data direction.
2488 if ((bufsize > 0) && (bufp != NULL)) {
2489 if (*bufp == NULL) {
2490 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
2493 dataout = 1; /* we are given a buffer, so we are writing */
2498 * Build a CISS BMIC command to get the logical drive ID.
2501 cr->cr_length = bufsize;
2503 cr->cr_flags = CISS_REQ_DATAIN;
2506 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
2507 cc->header.address.physical.bus = 0;
2508 cc->header.address.physical.target = 0;
2509 cc->cdb.cdb_length = sizeof(*cbc);
2510 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
2511 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
2512 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
2513 cc->cdb.timeout = 0;
2515 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
2516 bzero(cbc, sizeof(*cbc));
2517 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
2518 cbc->bmic_opcode = opcode;
2519 cbc->size = htons((u_int16_t)bufsize);
2524 ciss_release_request(cr);
2527 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
2533 /************************************************************************
2534 * Handle a command passed in from userspace.
2537 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
2539 struct ciss_request *cr;
2540 struct ciss_command *cc;
2541 struct ciss_error_info *ce;
2551 while (ciss_get_request(sc, &cr) != 0)
2552 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz);
2556 * Allocate an in-kernel databuffer if required, copy in user data.
2558 lockmgr(&sc->ciss_lock, LK_RELEASE);
2559 cr->cr_length = ioc->buf_size;
2560 if (ioc->buf_size > 0) {
2561 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK);
2562 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
2563 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2569 * Build the request based on the user command.
2571 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
2572 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
2574 /* XXX anything else to populate here? */
2575 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2580 if ((error = ciss_synch_request(cr, 60 * 1000))) {
2581 debug(0, "request failed - %d", error);
2586 * Check to see if the command succeeded.
2588 ce = (struct ciss_error_info *)&(cc->sg[0]);
2589 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0)
2590 bzero(ce, sizeof(*ce));
2593 * Copy the results back to the user.
2595 bcopy(ce, &ioc->error_info, sizeof(*ce));
2596 lockmgr(&sc->ciss_lock, LK_RELEASE);
2597 if ((ioc->buf_size > 0) &&
2598 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
2599 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
2607 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2610 if ((cr != NULL) && (cr->cr_data != NULL))
2611 kfree(cr->cr_data, CISS_MALLOC_CLASS);
2613 ciss_release_request(cr);
2617 /************************************************************************
2618 * Map a request into bus-visible space, initialise the scatter/gather
2622 ciss_map_request(struct ciss_request *cr)
2624 struct ciss_softc *sc;
2631 /* check that mapping is necessary */
2632 if (cr->cr_flags & CISS_REQ_MAPPED)
2635 cr->cr_flags |= CISS_REQ_MAPPED;
2637 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2638 BUS_DMASYNC_PREWRITE);
2640 if (cr->cr_data != NULL) {
2641 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap,
2642 cr->cr_data, cr->cr_length,
2643 ciss_request_map_helper, cr, 0);
2648 * Post the command to the adapter.
2650 cr->cr_sg_tag = CISS_SG_NONE;
2651 cr->cr_flags |= CISS_REQ_BUSY;
2653 CISS_TL_PERF_POST_CMD(sc, cr);
2655 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2662 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2664 struct ciss_command *cc;
2665 struct ciss_request *cr;
2666 struct ciss_softc *sc;
2671 cr = (struct ciss_request *)arg;
2675 for (i = 0; i < nseg; i++) {
2676 cc->sg[i].address = segs[i].ds_addr;
2677 cc->sg[i].length = segs[i].ds_len;
2678 cc->sg[i].extension = 0;
2680 /* we leave the s/g table entirely within the command */
2681 cc->header.sg_in_list = nseg;
2682 cc->header.sg_total = nseg;
2684 if (cr->cr_flags & CISS_REQ_DATAIN)
2685 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
2686 if (cr->cr_flags & CISS_REQ_DATAOUT)
2687 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
2690 cr->cr_sg_tag = CISS_SG_NONE;
2692 cr->cr_sg_tag = CISS_SG_1;
2694 cr->cr_sg_tag = CISS_SG_2;
2696 cr->cr_sg_tag = CISS_SG_4;
2698 cr->cr_sg_tag = CISS_SG_8;
2699 else if (nseg <= 16)
2700 cr->cr_sg_tag = CISS_SG_16;
2701 else if (nseg <= 32)
2702 cr->cr_sg_tag = CISS_SG_32;
2704 cr->cr_sg_tag = CISS_SG_MAX;
2707 * Post the command to the adapter.
2709 cr->cr_flags |= CISS_REQ_BUSY;
2711 CISS_TL_PERF_POST_CMD(sc, cr);
2713 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys);
2716 /************************************************************************
2717 * Unmap a request from bus-visible space.
2720 ciss_unmap_request(struct ciss_request *cr)
2722 struct ciss_softc *sc;
2728 /* check that unmapping is necessary */
2729 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0)
2732 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map,
2733 BUS_DMASYNC_POSTWRITE);
2735 if (cr->cr_data == NULL)
2738 if (cr->cr_flags & CISS_REQ_DATAIN)
2739 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
2740 if (cr->cr_flags & CISS_REQ_DATAOUT)
2741 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
2743 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
2745 cr->cr_flags &= ~CISS_REQ_MAPPED;
2748 /************************************************************************
2749 * Attach the driver to CAM.
2751 * We put all the logical drives on a single SCSI bus.
2754 ciss_cam_init(struct ciss_softc *sc)
2761 * Allocate a devq. We can reuse this for the masked physical
2762 * devices if we decide to export these as well.
2764 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) {
2765 ciss_printf(sc, "can't allocate CAM SIM queue\n");
2772 * This naturally wastes a bit of memory. The alternative is to allocate
2773 * and register each bus as it is found, and then track them on a linked
2774 * list. Unfortunately, the driver has a few places where it needs to
2775 * look up the SIM based solely on bus number, and it's unclear whether
2776 * a list traversal would work for these situations.
2778 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus +
2779 CISS_PHYSICAL_BASE);
2780 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*),
2781 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO);
2783 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
2784 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2786 device_get_unit(sc->ciss_dev),
2789 sc->ciss_max_requests - 2,
2790 sc->ciss_cam_devq)) == NULL) {
2791 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2796 * Register bus with this SIM.
2798 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2799 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) {
2800 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) {
2801 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2802 lockmgr(&sc->ciss_lock, LK_RELEASE);
2806 lockmgr(&sc->ciss_lock, LK_RELEASE);
2809 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2810 CISS_PHYSICAL_BASE; i++) {
2811 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll,
2813 device_get_unit(sc->ciss_dev),
2815 sc->ciss_max_requests - 2,
2816 sc->ciss_cam_devq)) == NULL) {
2817 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i);
2821 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
2822 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) {
2823 ciss_printf(sc, "can't register SCSI bus %d\n", i);
2824 lockmgr(&sc->ciss_lock, LK_RELEASE);
2827 lockmgr(&sc->ciss_lock, LK_RELEASE);
2831 * Initiate a rescan of the bus.
2833 ciss_cam_rescan_all(sc);
2838 /************************************************************************
2839 * Initiate a rescan of the 'logical devices' SIM
2842 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target)
2848 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
2850 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
2851 cam_sim_path(sc->ciss_cam_sim[bus]),
2852 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2853 ciss_printf(sc, "rescan failed (can't create path)\n");
2858 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
2859 ccb->ccb_h.func_code = XPT_SCAN_BUS;
2860 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
2861 ccb->crcn.flags = CAM_FLAG_NONE;
2864 /* scan is now in progress */
2868 ciss_cam_rescan_all(struct ciss_softc *sc)
2872 /* Rescan the logical buses */
2873 for (i = 0; i < sc->ciss_max_logical_bus; i++)
2874 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD);
2875 /* Rescan the physical buses */
2876 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus +
2877 CISS_PHYSICAL_BASE; i++)
2878 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD);
2882 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
2884 xpt_free_path(ccb->ccb_h.path);
2888 /************************************************************************
2889 * Handle requests coming from CAM
2892 ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
2894 struct ciss_softc *sc;
2895 struct ccb_scsiio *csio;
2899 sc = cam_sim_softc(sim);
2900 bus = cam_sim_bus(sim);
2901 csio = (struct ccb_scsiio *)&ccb->csio;
2902 target = csio->ccb_h.target_id;
2903 physical = CISS_IS_PHYSICAL(bus);
2905 switch (ccb->ccb_h.func_code) {
2907 /* perform SCSI I/O */
2909 if (!ciss_cam_action_io(sim, csio))
2913 /* perform geometry calculations */
2914 case XPT_CALC_GEOMETRY:
2916 struct ccb_calc_geometry *ccg = &ccb->ccg;
2917 struct ciss_ldrive *ld;
2919 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2923 ld = &sc->ciss_logical[bus][target];
2926 * Use the cached geometry settings unless the fault tolerance
2929 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) {
2930 u_int32_t secs_per_cylinder;
2933 ccg->secs_per_track = 32;
2934 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2935 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2937 ccg->heads = ld->cl_geometry.heads;
2938 ccg->secs_per_track = ld->cl_geometry.sectors;
2939 ccg->cylinders = ntohs(ld->cl_geometry.cylinders);
2941 ccb->ccb_h.status = CAM_REQ_CMP;
2945 /* handle path attribute inquiry */
2948 struct ccb_pathinq *cpi = &ccb->cpi;
2950 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2952 cpi->version_num = 1;
2953 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
2954 cpi->target_sprt = 0;
2956 cpi->max_target = CISS_MAX_LOGICAL;
2957 cpi->max_lun = 0; /* 'logical drive' channel only */
2958 cpi->initiator_id = CISS_MAX_LOGICAL;
2959 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2960 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
2961 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
2962 cpi->unit_number = cam_sim_unit(sim);
2963 cpi->bus_id = cam_sim_bus(sim);
2964 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
2965 cpi->transport = XPORT_SPI;
2966 cpi->transport_version = 2;
2967 cpi->protocol = PROTO_SCSI;
2968 cpi->protocol_version = SCSI_REV_2;
2969 #if 0 /* XXX swildner */
2970 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE;
2972 ccb->ccb_h.status = CAM_REQ_CMP;
2976 case XPT_GET_TRAN_SETTINGS:
2978 struct ccb_trans_settings *cts = &ccb->cts;
2982 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
2983 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
2986 bus = cam_sim_bus(sim);
2987 target = cts->ccb_h.target_id;
2990 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
2991 /* disconnect always OK */
2992 cts->protocol = PROTO_SCSI;
2993 cts->protocol_version = SCSI_REV_2;
2994 cts->transport = XPORT_SPI;
2995 cts->transport_version = 2;
2997 spi->valid = CTS_SPI_VALID_DISC;
2998 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
3000 scsi->valid = CTS_SCSI_VALID_TQ;
3001 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3003 cts->ccb_h.status = CAM_REQ_CMP;
3007 default: /* we can't do this */
3008 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
3009 ccb->ccb_h.status = CAM_REQ_INVALID;
3016 /************************************************************************
3017 * Handle a CAM SCSI I/O request.
3020 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
3022 struct ciss_softc *sc;
3024 struct ciss_request *cr;
3025 struct ciss_command *cc;
3028 sc = cam_sim_softc(sim);
3029 bus = cam_sim_bus(sim);
3030 target = csio->ccb_h.target_id;
3032 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
3034 /* check that the CDB pointer is not to a physical address */
3035 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
3036 debug(3, " CDB pointer is to physical address");
3037 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3040 /* if there is data transfer, it must be to/from a virtual address */
3041 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
3042 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
3043 debug(3, " data pointer is to physical address");
3044 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3046 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
3047 debug(3, " data has premature s/g setup");
3048 csio->ccb_h.status = CAM_REQ_CMP_ERR;
3052 /* abandon aborted ccbs or those that have failed validation */
3053 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
3054 debug(3, "abandoning CCB due to abort/validation failure");
3058 /* handle emulation of some SCSI commands ourself */
3059 if (ciss_cam_emulate(sc, csio))
3063 * Get a request to manage this command. If we can't, return the
3064 * ccb, freeze the queue and flag so that we unfreeze it when a
3065 * request completes.
3067 if ((error = ciss_get_request(sc, &cr)) != 0) {
3068 xpt_freeze_simq(sim, 1);
3069 sc->ciss_flags |= CISS_FLAG_BUSY;
3070 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3075 * Build the command.
3078 cr->cr_data = csio->data_ptr;
3079 cr->cr_length = csio->dxfer_len;
3080 cr->cr_complete = ciss_cam_complete;
3081 cr->cr_private = csio;
3084 * Target the right logical volume.
3086 if (CISS_IS_PHYSICAL(bus))
3087 cc->header.address =
3088 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address;
3090 cc->header.address =
3091 sc->ciss_logical[bus][target].cl_address;
3092 cc->cdb.cdb_length = csio->cdb_len;
3093 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3094 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
3095 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
3096 cr->cr_flags = CISS_REQ_DATAOUT;
3097 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3098 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
3099 cr->cr_flags = CISS_REQ_DATAIN;
3100 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3103 cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
3105 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
3106 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
3107 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
3109 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
3113 * Submit the request to the adapter.
3115 * Note that this may fail if we're unable to map the request (and
3116 * if we ever learn a transport layer other than simple, may fail
3117 * if the adapter rejects the command).
3119 if ((error = ciss_start(cr)) != 0) {
3120 xpt_freeze_simq(sim, 1);
3121 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3122 if (error == EINPROGRESS) {
3125 csio->ccb_h.status |= CAM_REQUEUE_REQ;
3126 ciss_release_request(cr);
3134 /************************************************************************
3135 * Emulate SCSI commands the adapter doesn't handle as we might like.
3138 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
3142 target = csio->ccb_h.target_id;
3143 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3145 if (CISS_IS_PHYSICAL(bus)) {
3146 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) {
3147 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3148 xpt_done((union ccb *)csio);
3155 * Handle requests for volumes that don't exist or are not online.
3156 * A selection timeout is slightly better than an illegal request.
3157 * Other errors might be better.
3159 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) {
3160 csio->ccb_h.status |= CAM_SEL_TIMEOUT;
3161 xpt_done((union ccb *)csio);
3165 /* if we have to fake Synchronise Cache */
3166 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
3168 * If this is a Synchronise Cache command, typically issued when
3169 * a device is closed, flush the adapter and complete now.
3171 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
3172 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
3173 ciss_flush_adapter(sc);
3174 csio->ccb_h.status |= CAM_REQ_CMP;
3175 xpt_done((union ccb *)csio);
3183 /************************************************************************
3184 * Check for possibly-completed commands.
3187 ciss_cam_poll(struct cam_sim *sim)
3190 struct ciss_softc *sc = cam_sim_softc(sim);
3196 ciss_perf_done(sc, &qh);
3199 ciss_complete(sc, &qh);
3202 /************************************************************************
3203 * Handle completion of a command - pass results back through the CCB
3206 ciss_cam_complete(struct ciss_request *cr)
3208 struct ciss_softc *sc;
3209 struct ciss_command *cc;
3210 struct ciss_error_info *ce;
3211 struct ccb_scsiio *csio;
3219 ce = (struct ciss_error_info *)&(cc->sg[0]);
3220 csio = (struct ccb_scsiio *)cr->cr_private;
3223 * Extract status values from request.
3225 ciss_report_request(cr, &command_status, &scsi_status);
3226 csio->scsi_status = scsi_status;
3229 * Handle specific SCSI status values.
3231 switch(scsi_status) {
3232 /* no status due to adapter error */
3234 debug(0, "adapter error");
3235 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3238 /* no status due to command completed OK */
3239 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
3240 debug(2, "SCSI_STATUS_OK");
3241 csio->ccb_h.status |= CAM_REQ_CMP;
3244 /* check condition, sense data included */
3245 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
3246 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n",
3247 ce->sense_length, ce->residual_count);
3248 bzero(&csio->sense_data, SSD_FULL_SIZE);
3249 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
3250 if (csio->sense_len > ce->sense_length)
3251 csio->sense_resid = csio->sense_len - ce->sense_length;
3253 csio->sense_resid = 0;
3254 csio->resid = ce->residual_count;
3255 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
3258 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
3259 debug(0, "sense key %x", sns->flags & SSD_KEY);
3264 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
3265 debug(0, "SCSI_STATUS_BUSY");
3266 csio->ccb_h.status |= CAM_SCSI_BUSY;
3270 debug(0, "unknown status 0x%x", csio->scsi_status);
3271 csio->ccb_h.status |= CAM_REQ_CMP_ERR;
3275 /* handle post-command fixup */
3276 ciss_cam_complete_fixup(sc, csio);
3278 ciss_release_request(cr);
3279 if (sc->ciss_flags & CISS_FLAG_BUSY) {
3280 sc->ciss_flags &= ~CISS_FLAG_BUSY;
3281 if (csio->ccb_h.status & CAM_RELEASE_SIMQ)
3282 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0);
3284 csio->ccb_h.status |= CAM_RELEASE_SIMQ;
3286 xpt_done((union ccb *)csio);
3289 /********************************************************************************
3290 * Fix up the result of some commands here.
3293 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
3295 struct scsi_inquiry_data *inq;
3296 struct ciss_ldrive *cl;
3300 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
3301 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes;
3302 if (cdb[0] == INQUIRY &&
3303 (cdb[1] & SI_EVPD) == 0 &&
3304 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
3305 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) {
3307 inq = (struct scsi_inquiry_data *)csio->data_ptr;
3308 target = csio->ccb_h.target_id;
3309 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path));
3312 * Don't let hard drives be seen by the DA driver. They will still be
3313 * attached by the PASS driver.
3315 if (CISS_IS_PHYSICAL(bus)) {
3316 if (SID_TYPE(inq) == T_DIRECT)
3317 inq->device = (inq->device & 0xe0) | T_NODEVICE;
3321 cl = &sc->ciss_logical[bus][target];
3323 padstr(inq->vendor, "COMPAQ", 8);
3324 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
3325 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
3330 /********************************************************************************
3331 * Find a peripheral attached at (target)
3333 static struct cam_periph *
3334 ciss_find_periph(struct ciss_softc *sc, int bus, int target)
3336 struct cam_periph *periph;
3337 struct cam_path *path;
3340 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]),
3342 if (status == CAM_REQ_CMP) {
3343 periph = cam_periph_find(path, NULL);
3344 xpt_free_path(path);
3351 /********************************************************************************
3352 * Name the device at (target)
3354 * XXX is this strictly correct?
3357 ciss_name_device(struct ciss_softc *sc, int bus, int target)
3359 struct cam_periph *periph;
3361 if (CISS_IS_PHYSICAL(bus))
3363 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) {
3364 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d",
3365 periph->periph_name, periph->unit_number);
3368 sc->ciss_logical[bus][target].cl_name[0] = 0;
3372 /************************************************************************
3373 * Periodic status monitoring.
3376 ciss_periodic(void *arg)
3378 struct ciss_softc *sc = (struct ciss_softc *)arg;
3379 struct ciss_request *cr = NULL;
3380 struct ciss_command *cc = NULL;
3383 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
3387 * Check the adapter heartbeat.
3389 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
3390 sc->ciss_heart_attack++;
3391 debug(0, "adapter heart attack in progress 0x%x/%d",
3392 sc->ciss_heartbeat, sc->ciss_heart_attack);
3393 if (sc->ciss_heart_attack == 3) {
3394 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
3395 ciss_disable_adapter(sc);
3396 lockmgr(&sc->ciss_lock, LK_RELEASE);
3400 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
3401 sc->ciss_heart_attack = 0;
3402 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
3406 * Send the NOP message and wait for a response.
3408 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) {
3410 cr->cr_complete = ciss_nop_complete;
3411 cc->cdb.cdb_length = 1;
3412 cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
3413 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3414 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
3415 cc->cdb.timeout = 0;
3416 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP;
3418 if ((error = ciss_start(cr)) != 0) {
3419 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n");
3424 * If the notify event request has died for some reason, or has
3425 * not started yet, restart it.
3427 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
3428 debug(0, "(re)starting Event Notify chain");
3429 ciss_notify_event(sc);
3431 lockmgr(&sc->ciss_lock, LK_RELEASE);
3436 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc);
3440 ciss_nop_complete(struct ciss_request *cr)
3442 struct ciss_softc *sc;
3443 static int first_time = 1;
3446 if (ciss_report_request(cr, NULL, NULL) != 0) {
3447 if (first_time == 1) {
3449 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n");
3453 ciss_release_request(cr);
3456 /************************************************************************
3457 * Disable the adapter.
3459 * The all requests in completed queue is failed with hardware error.
3460 * This will cause failover in a multipath configuration.
3463 ciss_disable_adapter(struct ciss_softc *sc)
3466 struct ciss_request *cr;
3467 struct ciss_command *cc;
3468 struct ciss_error_info *ce;
3471 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
3472 pci_disable_busmaster(sc->ciss_dev);
3473 sc->ciss_flags &= ~CISS_FLAG_RUNNING;
3475 for (i = 1; i < sc->ciss_max_requests; i++) {
3476 cr = &sc->ciss_request[i];
3477 if ((cr->cr_flags & CISS_REQ_BUSY) == 0)
3481 ce = (struct ciss_error_info *)&(cc->sg[0]);
3482 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR;
3483 ciss_enqueue_complete(cr, &qh);
3487 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL)
3491 * If the request has a callback, invoke it.
3493 if (cr->cr_complete != NULL) {
3494 cr->cr_complete(cr);
3499 * If someone is sleeping on this request, wake them up.
3501 if (cr->cr_flags & CISS_REQ_SLEEP) {
3502 cr->cr_flags &= ~CISS_REQ_SLEEP;
3509 /************************************************************************
3510 * Request a notification response from the adapter.
3512 * If (cr) is NULL, this is the first request of the adapter, so
3513 * reset the adapter's message pointer and start with the oldest
3514 * message available.
3517 ciss_notify_event(struct ciss_softc *sc)
3519 struct ciss_request *cr;
3520 struct ciss_command *cc;
3521 struct ciss_notify_cdb *cnc;
3526 cr = sc->ciss_periodic_notify;
3528 /* get a request if we don't already have one */
3530 if ((error = ciss_get_request(sc, &cr)) != 0) {
3531 debug(0, "can't get notify event request");
3534 sc->ciss_periodic_notify = cr;
3535 cr->cr_complete = ciss_notify_complete;
3536 debug(1, "acquired request %d", cr->cr_tag);
3540 * Get a databuffer if we don't already have one, note that the
3541 * adapter command wants a larger buffer than the actual
3544 if (cr->cr_data == NULL) {
3545 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
3546 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3549 /* re-setup the request's command (since we never release it) XXX overkill*/
3550 ciss_preen_command(cr);
3552 /* (re)build the notify event command */
3554 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3555 cc->header.address.physical.bus = 0;
3556 cc->header.address.physical.target = 0;
3558 cc->cdb.cdb_length = sizeof(*cnc);
3559 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3560 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3561 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3562 cc->cdb.timeout = 0; /* no timeout, we hope */
3564 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3565 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
3566 cnc->opcode = CISS_OPCODE_READ;
3567 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
3568 cnc->timeout = 0; /* no timeout, we hope */
3569 cnc->synchronous = 0;
3571 cnc->seek_to_oldest = 0;
3572 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0)
3576 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3578 /* submit the request */
3579 error = ciss_start(cr);
3584 if (cr->cr_data != NULL)
3585 kfree(cr->cr_data, CISS_MALLOC_CLASS);
3586 ciss_release_request(cr);
3588 sc->ciss_periodic_notify = NULL;
3589 debug(0, "can't submit notify event request");
3590 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3592 debug(1, "notify event submitted");
3593 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
3598 ciss_notify_complete(struct ciss_request *cr)
3600 struct ciss_notify *cn;
3601 struct ciss_softc *sc;
3606 cn = (struct ciss_notify *)cr->cr_data;
3610 * Report request results, decode status.
3612 ciss_report_request(cr, &command_status, &scsi_status);
3615 * Abort the chain on a fatal error.
3617 * XXX which of these are actually errors?
3619 if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
3620 (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
3621 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
3622 ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
3623 ciss_name_command_status(command_status));
3624 ciss_release_request(cr);
3625 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3630 * If the adapter gave us a text message, print it.
3632 if (cn->message[0] != 0)
3633 ciss_printf(sc, "*** %.80s\n", cn->message);
3635 debug(0, "notify event class %d subclass %d detail %d",
3636 cn->class, cn->subclass, cn->detail);
3639 * If the response indicates that the notifier has been aborted,
3640 * release the notifier command.
3642 if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
3643 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
3644 (cn->detail == 1)) {
3645 debug(0, "notifier exiting");
3646 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3647 ciss_release_request(cr);
3648 sc->ciss_periodic_notify = NULL;
3649 wakeup(&sc->ciss_periodic_notify);
3651 /* Handle notify events in a kernel thread */
3652 ciss_enqueue_notify(cr);
3653 sc->ciss_periodic_notify = NULL;
3654 wakeup(&sc->ciss_periodic_notify);
3655 wakeup(&sc->ciss_notify);
3658 * Send a new notify event command, if we're not aborting.
3660 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
3661 ciss_notify_event(sc);
3665 /************************************************************************
3666 * Abort the Notify Event chain.
3668 * Note that we can't just abort the command in progress; we have to
3669 * explicitly issue an Abort Notify Event command in order for the
3670 * adapter to clean up correctly.
3672 * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
3673 * the chain will not restart itself.
3676 ciss_notify_abort(struct ciss_softc *sc)
3678 struct ciss_request *cr;
3679 struct ciss_command *cc;
3680 struct ciss_notify_cdb *cnc;
3681 int error, command_status, scsi_status;
3688 /* verify that there's an outstanding command */
3689 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3692 /* get a command to issue the abort with */
3693 if ((error = ciss_get_request(sc, &cr)))
3696 /* get a buffer for the result */
3697 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT);
3698 cr->cr_length = CISS_NOTIFY_DATA_SIZE;
3702 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
3703 cc->header.address.physical.bus = 0;
3704 cc->header.address.physical.target = 0;
3705 cc->cdb.cdb_length = sizeof(*cnc);
3706 cc->cdb.type = CISS_CDB_TYPE_COMMAND;
3707 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
3708 cc->cdb.direction = CISS_CDB_DIRECTION_READ;
3709 cc->cdb.timeout = 0; /* no timeout, we hope */
3711 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
3712 bzero(cnc, sizeof(*cnc));
3713 cnc->opcode = CISS_OPCODE_WRITE;
3714 cnc->command = CISS_COMMAND_ABORT_NOTIFY;
3715 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
3717 ciss_print_request(cr);
3720 * Submit the request and wait for it to complete.
3722 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3723 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
3730 ciss_report_request(cr, &command_status, &scsi_status);
3731 switch(command_status) {
3732 case CISS_CMD_STATUS_SUCCESS:
3734 case CISS_CMD_STATUS_INVALID_COMMAND:
3736 * Some older adapters don't support the CISS version of this
3737 * command. Fall back to using the BMIC version.
3739 error = ciss_notify_abort_bmic(sc);
3744 case CISS_CMD_STATUS_TARGET_STATUS:
3746 * This can happen if the adapter thinks there wasn't an outstanding
3747 * Notify Event command but we did. We clean up here.
3749 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
3750 if (sc->ciss_periodic_notify != NULL)
3751 ciss_release_request(sc->ciss_periodic_notify);
3758 ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
3759 ciss_name_command_status(command_status));
3765 * Sleep waiting for the notifier command to complete. Note
3766 * that if it doesn't, we may end up in a bad situation, since
3767 * the adapter may deliver it later. Also note that the adapter
3768 * requires the Notify Event command to be cancelled in order to
3769 * maintain internal bookkeeping.
3771 while (sc->ciss_periodic_notify != NULL) {
3772 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5);
3773 if (error == EWOULDBLOCK) {
3774 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
3780 /* release the cancel request */
3782 if (cr->cr_data != NULL)
3783 kfree(cr->cr_data, CISS_MALLOC_CLASS);
3784 ciss_release_request(cr);
3787 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
3791 /************************************************************************
3792 * Abort the Notify Event chain using a BMIC command.
3795 ciss_notify_abort_bmic(struct ciss_softc *sc)
3797 struct ciss_request *cr;
3798 int error, command_status;
3805 /* verify that there's an outstanding command */
3806 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
3810 * Build a BMIC command to cancel the Notify on Event command.
3812 * Note that we are sending a CISS opcode here. Odd.
3814 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
3819 * Submit the request and wait for it to complete.
3821 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
3822 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
3829 ciss_report_request(cr, &command_status, NULL);
3830 switch(command_status) {
3831 case CISS_CMD_STATUS_SUCCESS:
3834 ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
3835 ciss_name_command_status(command_status));
3842 ciss_release_request(cr);
3846 /************************************************************************
3847 * Handle rescanning all the logical volumes when a notify event
3848 * causes the drives to come online or offline.
3851 ciss_notify_rescan_logical(struct ciss_softc *sc)
3853 struct ciss_lun_report *cll;
3854 struct ciss_ldrive *ld;
3858 * We must rescan all logical volumes to get the right logical
3861 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS,
3866 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
3869 * Delete any of the drives which were destroyed by the
3872 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
3873 for (j = 0; j < CISS_MAX_LOGICAL; j++) {
3874 ld = &sc->ciss_logical[i][j];
3876 if (ld->cl_update == 0)
3879 if (ld->cl_status != CISS_LD_ONLINE) {
3880 ciss_cam_rescan_target(sc, i, j);
3883 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS);
3885 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS);
3887 ld->cl_ldrive = NULL;
3888 ld->cl_lstatus = NULL;
3894 * Scan for new drives.
3896 for (i = 0; i < ndrives; i++) {
3899 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun);
3900 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun);
3901 ld = &sc->ciss_logical[bus][target];
3903 if (ld->cl_update == 0)
3907 ld->cl_address = cll->lun[i];
3908 ld->cl_controller = &sc->ciss_controllers[bus];
3909 if (ciss_identify_logical(sc, ld) == 0) {
3910 ciss_cam_rescan_target(sc, bus, target);
3913 kfree(cll, CISS_MALLOC_CLASS);
3916 /************************************************************************
3917 * Handle a notify event relating to the status of a logical drive.
3919 * XXX need to be able to defer some of these to properly handle
3920 * calling the "ID Physical drive" command, unless the 'extended'
3921 * drive IDs are always in BIG_MAP format.
3924 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
3926 struct ciss_ldrive *ld;
3927 int ostatus, bus, target;
3931 bus = cn->device.physical.bus;
3932 target = cn->data.logical_status.logical_drive;
3933 ld = &sc->ciss_logical[bus][target];
3935 switch (cn->subclass) {
3936 case CISS_NOTIFY_LOGICAL_STATUS:
3937 switch (cn->detail) {
3939 ciss_name_device(sc, bus, target);
3940 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
3941 cn->data.logical_status.logical_drive, ld->cl_name,
3942 ciss_name_ldrive_status(cn->data.logical_status.previous_state),
3943 ciss_name_ldrive_status(cn->data.logical_status.new_state),
3944 cn->data.logical_status.spare_state,
3945 "\20\1configured\2rebuilding\3failed\4in use\5available\n");
3948 * Update our idea of the drive's status.
3950 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
3951 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3952 if (ld->cl_lstatus != NULL)
3953 ld->cl_lstatus->status = cn->data.logical_status.new_state;
3956 * Have CAM rescan the drive if its status has changed.
3958 if (ostatus != ld->cl_status) {
3960 ciss_notify_rescan_logical(sc);
3965 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
3966 ciss_name_device(sc, bus, target);
3967 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
3968 cn->data.logical_status.logical_drive, ld->cl_name);
3969 ciss_accept_media(sc, ld);
3972 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
3973 ciss_notify_rescan_logical(sc);
3978 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
3979 cn->data.rebuild_aborted.logical_drive,
3981 (cn->detail == 2) ? "read" : "write");
3986 case CISS_NOTIFY_LOGICAL_ERROR:
3987 if (cn->detail == 0) {
3988 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
3989 cn->data.io_error.logical_drive,
3991 cn->data.io_error.failure_bus,
3992 cn->data.io_error.failure_drive);
3993 /* XXX should we take the drive down at this point, or will we be told? */
3997 case CISS_NOTIFY_LOGICAL_SURFACE:
3998 if (cn->detail == 0)
3999 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
4000 cn->data.consistency_completed.logical_drive,
4006 /************************************************************************
4007 * Handle a notify event relating to the status of a physical drive.
4010 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
4014 /************************************************************************
4015 * Handle a notify event relating to the status of a physical drive.
4018 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn)
4020 struct ciss_lun_report *cll = NULL;
4023 switch (cn->subclass) {
4024 case CISS_NOTIFY_HOTPLUG_PHYSICAL:
4025 case CISS_NOTIFY_HOTPLUG_NONDISK:
4026 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number);
4028 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number);
4030 if (cn->detail == 0) {
4032 * Mark the device offline so that it'll start producing selection
4033 * timeouts to the upper layer.
4035 if ((bus >= 0) && (target >= 0))
4036 sc->ciss_physical[bus][target].cp_online = 0;
4039 * Rescan the physical lun list for new items
4041 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS,
4044 ciss_printf(sc, "Warning, cannot get physical lun list\n");
4047 ciss_filter_physical(sc, cll);
4052 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass);
4057 kfree(cll, CISS_MALLOC_CLASS);
4060 /************************************************************************
4061 * Handle deferred processing of notify events. Notify events may need
4062 * sleep which is unsafe during an interrupt.
4065 ciss_notify_thread(void *arg)
4067 struct ciss_softc *sc;
4068 struct ciss_request *cr;
4069 struct ciss_notify *cn;
4071 sc = (struct ciss_softc *)arg;
4072 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
4075 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 &&
4076 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) {
4077 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0);
4080 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT)
4083 cr = ciss_dequeue_notify(sc);
4087 cn = (struct ciss_notify *)cr->cr_data;
4089 switch (cn->class) {
4090 case CISS_NOTIFY_HOTPLUG:
4091 ciss_notify_hotplug(sc, cn);
4093 case CISS_NOTIFY_LOGICAL:
4094 ciss_notify_logical(sc, cn);
4096 case CISS_NOTIFY_PHYSICAL:
4097 ciss_notify_physical(sc, cn);
4101 ciss_release_request(cr);
4104 sc->ciss_notify_thread = NULL;
4105 wakeup(&sc->ciss_notify_thread);
4107 lockmgr(&sc->ciss_lock, LK_RELEASE);
4111 /************************************************************************
4112 * Start the notification kernel thread.
4115 ciss_spawn_notify_thread(struct ciss_softc *sc)
4118 if (kthread_create((void(*)(void *))ciss_notify_thread, sc,
4119 &sc->ciss_notify_thread, "ciss_notify%d",
4120 device_get_unit(sc->ciss_dev)))
4121 panic("Could not create notify thread\n");
4124 /************************************************************************
4125 * Kill the notification kernel thread.
4128 ciss_kill_notify_thread(struct ciss_softc *sc)
4131 if (sc->ciss_notify_thread == NULL)
4134 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT;
4135 wakeup(&sc->ciss_notify);
4136 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0);
4139 /************************************************************************
4143 ciss_print_request(struct ciss_request *cr)
4145 struct ciss_softc *sc;
4146 struct ciss_command *cc;
4148 char hexstr[HEX_NCPYLEN(CISS_CDB_BUFFER_SIZE)];
4153 ciss_printf(sc, "REQUEST @ %p\n", cr);
4154 ciss_printf(sc, " data %p/%d tag %d flags %b\n",
4155 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
4156 "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
4157 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
4158 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
4159 switch(cc->header.address.mode.mode) {
4160 case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
4161 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
4162 ciss_printf(sc, " physical bus %d target %d\n",
4163 cc->header.address.physical.bus, cc->header.address.physical.target);
4165 case CISS_HDR_ADDRESS_MODE_LOGICAL:
4166 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
4169 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
4170 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
4171 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
4172 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
4174 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
4175 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
4176 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
4177 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
4178 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
4179 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
4180 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
4181 ciss_printf(sc, " %s\n", hexncpy(&cc->cdb.cdb[0], cc->cdb.cdb_length,
4182 hexstr, HEX_NCPYLEN(cc->cdb.cdb_length), " "));
4184 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
4185 /* XXX print error info */
4187 /* since we don't use chained s/g, don't support it here */
4188 for (i = 0; i < cc->header.sg_in_list; i++) {
4190 ciss_printf(sc, " ");
4191 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
4192 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
4198 /************************************************************************
4199 * Print information about the status of a logical drive.
4202 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
4206 if (ld->cl_lstatus == NULL) {
4207 kprintf("does not exist\n");
4211 /* print drive status */
4212 switch(ld->cl_lstatus->status) {
4213 case CISS_LSTATUS_OK:
4214 kprintf("online\n");
4216 case CISS_LSTATUS_INTERIM_RECOVERY:
4217 kprintf("in interim recovery mode\n");
4219 case CISS_LSTATUS_READY_RECOVERY:
4220 kprintf("ready to begin recovery\n");
4222 case CISS_LSTATUS_RECOVERING:
4223 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4224 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
4225 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
4226 bus, target, ld->cl_lstatus->blocks_to_recover);
4228 case CISS_LSTATUS_EXPANDING:
4229 kprintf("being expanded, %u blocks remaining\n",
4230 ld->cl_lstatus->blocks_to_recover);
4232 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4233 kprintf("queued for expansion\n");
4235 case CISS_LSTATUS_FAILED:
4236 kprintf("queued for expansion\n");
4238 case CISS_LSTATUS_WRONG_PDRIVE:
4239 kprintf("wrong physical drive inserted\n");
4241 case CISS_LSTATUS_MISSING_PDRIVE:
4242 kprintf("missing a needed physical drive\n");
4244 case CISS_LSTATUS_BECOMING_READY:
4245 kprintf("becoming ready\n");
4249 /* print failed physical drives */
4250 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
4251 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
4252 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
4255 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
4256 ld->cl_lstatus->drive_failure_map[i]);
4261 #include "opt_ddb.h"
4263 #include <ddb/ddb.h>
4264 /************************************************************************
4265 * Print information about the controller/driver.
4268 ciss_print_adapter(struct ciss_softc *sc)
4272 ciss_printf(sc, "ADAPTER:\n");
4273 for (i = 0; i < CISSQ_COUNT; i++) {
4274 ciss_printf(sc, "%s %d/%d\n",
4276 i == 1 ? "busy" : "complete",
4277 sc->ciss_qstat[i].q_length,
4278 sc->ciss_qstat[i].q_max);
4280 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests);
4281 ciss_printf(sc, "flags %b\n", sc->ciss_flags,
4282 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n");
4284 for (i = 0; i < sc->ciss_max_logical_bus; i++) {
4285 for (j = 0; j < CISS_MAX_LOGICAL; j++) {
4286 ciss_printf(sc, "LOGICAL DRIVE %d: ", i);
4287 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]);
4291 /* XXX Should physical drives be printed out here? */
4293 for (i = 1; i < sc->ciss_max_requests; i++)
4294 ciss_print_request(sc->ciss_request + i);
4298 DB_COMMAND(ciss_prt, db_ciss_prt)
4300 struct ciss_softc *sc;
4302 sc = devclass_get_softc(devclass_find("ciss"), 0);
4304 kprintf("no ciss controllers\n");
4306 ciss_print_adapter(sc);
4312 /************************************************************************
4313 * Return a name for a logical drive status value.
4316 ciss_name_ldrive_status(int status)
4319 case CISS_LSTATUS_OK:
4321 case CISS_LSTATUS_FAILED:
4323 case CISS_LSTATUS_NOT_CONFIGURED:
4324 return("not configured");
4325 case CISS_LSTATUS_INTERIM_RECOVERY:
4326 return("interim recovery");
4327 case CISS_LSTATUS_READY_RECOVERY:
4328 return("ready for recovery");
4329 case CISS_LSTATUS_RECOVERING:
4330 return("recovering");
4331 case CISS_LSTATUS_WRONG_PDRIVE:
4332 return("wrong physical drive inserted");
4333 case CISS_LSTATUS_MISSING_PDRIVE:
4334 return("missing physical drive");
4335 case CISS_LSTATUS_EXPANDING:
4336 return("expanding");
4337 case CISS_LSTATUS_BECOMING_READY:
4338 return("becoming ready");
4339 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4340 return("queued for expansion");
4342 return("unknown status");
4345 /************************************************************************
4346 * Return an online/offline/nonexistent value for a logical drive
4350 ciss_decode_ldrive_status(int status)
4353 case CISS_LSTATUS_NOT_CONFIGURED:
4354 return(CISS_LD_NONEXISTENT);
4356 case CISS_LSTATUS_OK:
4357 case CISS_LSTATUS_INTERIM_RECOVERY:
4358 case CISS_LSTATUS_READY_RECOVERY:
4359 case CISS_LSTATUS_RECOVERING:
4360 case CISS_LSTATUS_EXPANDING:
4361 case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
4362 return(CISS_LD_ONLINE);
4364 case CISS_LSTATUS_FAILED:
4365 case CISS_LSTATUS_WRONG_PDRIVE:
4366 case CISS_LSTATUS_MISSING_PDRIVE:
4367 case CISS_LSTATUS_BECOMING_READY:
4369 return(CISS_LD_OFFLINE);
4374 /************************************************************************
4375 * Return a name for a logical drive's organisation.
4378 ciss_name_ldrive_org(int org)
4381 case CISS_LDRIVE_RAID0:
4383 case CISS_LDRIVE_RAID1:
4384 return("RAID 1(1+0)");
4385 case CISS_LDRIVE_RAID4:
4387 case CISS_LDRIVE_RAID5:
4389 case CISS_LDRIVE_RAID51:
4391 case CISS_LDRIVE_RAIDADG:
4397 /************************************************************************
4398 * Return a name for a command status value.
4401 ciss_name_command_status(int status)
4404 case CISS_CMD_STATUS_SUCCESS:
4406 case CISS_CMD_STATUS_TARGET_STATUS:
4407 return("target status");
4408 case CISS_CMD_STATUS_DATA_UNDERRUN:
4409 return("data underrun");
4410 case CISS_CMD_STATUS_DATA_OVERRUN:
4411 return("data overrun");
4412 case CISS_CMD_STATUS_INVALID_COMMAND:
4413 return("invalid command");
4414 case CISS_CMD_STATUS_PROTOCOL_ERROR:
4415 return("protocol error");
4416 case CISS_CMD_STATUS_HARDWARE_ERROR:
4417 return("hardware error");
4418 case CISS_CMD_STATUS_CONNECTION_LOST:
4419 return("connection lost");
4420 case CISS_CMD_STATUS_ABORTED:
4422 case CISS_CMD_STATUS_ABORT_FAILED:
4423 return("abort failed");
4424 case CISS_CMD_STATUS_UNSOLICITED_ABORT:
4425 return("unsolicited abort");
4426 case CISS_CMD_STATUS_TIMEOUT:
4428 case CISS_CMD_STATUS_UNABORTABLE:
4429 return("unabortable");
4431 return("unknown status");
4434 /************************************************************************
4435 * Handle an open on the control device.
4438 ciss_open(struct dev_open_args *ap)
4440 cdev_t dev = ap->a_head.a_dev;
4441 struct ciss_softc *sc;
4445 sc = (struct ciss_softc *)dev->si_drv1;
4447 /* we might want to veto if someone already has us open */
4449 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
4450 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
4451 lockmgr(&sc->ciss_lock, LK_RELEASE);
4455 /************************************************************************
4456 * Handle the last close on the control device.
4459 ciss_close(struct dev_close_args *ap)
4461 cdev_t dev = ap->a_head.a_dev;
4462 struct ciss_softc *sc;
4466 sc = (struct ciss_softc *)dev->si_drv1;
4468 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
4469 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
4470 lockmgr(&sc->ciss_lock, LK_RELEASE);
4474 /********************************************************************************
4475 * Handle adapter-specific control operations.
4477 * Note that the API here is compatible with the Linux driver, in order to
4478 * simplify the porting of Compaq's userland tools.
4481 ciss_ioctl(struct dev_ioctl_args *ap)
4483 caddr_t addr = ap->a_data;
4484 cdev_t dev = ap->a_head.a_dev;
4485 u_long cmd = ap->a_cmd;
4486 struct ciss_softc *sc;
4487 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr;
4489 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr;
4490 IOCTL_Command_struct ioc_swab;
4496 sc = (struct ciss_softc *)dev->si_drv1;
4498 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE);
4501 case CCISS_GETQSTATS:
4503 union ciss_statrequest *cr = (union ciss_statrequest *)addr;
4505 switch (cr->cs_item) {
4508 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat,
4509 sizeof(struct ciss_qstat));
4519 case CCISS_GETPCIINFO:
4521 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
4523 pis->bus = pci_get_bus(sc->ciss_dev);
4524 pis->dev_fn = pci_get_slot(sc->ciss_dev);
4525 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) |
4526 pci_get_subdevice(sc->ciss_dev);
4531 case CCISS_GETINTINFO:
4533 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4535 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
4536 cis->count = sc->ciss_cfg->interrupt_coalesce_count;
4541 case CCISS_SETINTINFO:
4543 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
4545 if ((cis->delay == 0) && (cis->count == 0)) {
4551 * XXX apparently this is only safe if the controller is idle,
4552 * we should suspend it before doing this.
4554 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
4555 sc->ciss_cfg->interrupt_coalesce_count = cis->count;
4557 if (ciss_update_config(sc))
4560 /* XXX resume the controller here */
4564 case CCISS_GETNODENAME:
4565 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
4566 sizeof(NodeName_type));
4569 case CCISS_SETNODENAME:
4570 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
4571 sizeof(NodeName_type));
4572 if (ciss_update_config(sc))
4576 case CCISS_GETHEARTBEAT:
4577 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
4580 case CCISS_GETBUSTYPES:
4581 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
4584 case CCISS_GETFIRMVER:
4585 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
4586 sizeof(FirmwareVer_type));
4589 case CCISS_GETDRIVERVER:
4590 *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
4593 case CCISS_REVALIDVOLS:
4595 * This is a bit ugly; to do it "right" we really need
4596 * to find any disks that have changed, kick CAM off them,
4597 * then rescan only these disks. It'd be nice if they
4598 * a) told us which disk(s) they were going to play with,
4599 * and b) which ones had arrived. 8(
4604 case CCISS_PASSTHRU32:
4605 ioc_swab.LUN_info = ioc32->LUN_info;
4606 ioc_swab.Request = ioc32->Request;
4607 ioc_swab.error_info = ioc32->error_info;
4608 ioc_swab.buf_size = ioc32->buf_size;
4609 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf;
4614 case CCISS_PASSTHRU:
4615 error = ciss_user_command(sc, ioc);
4619 debug(0, "unknown ioctl 0x%lx", cmd);
4621 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
4622 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
4623 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
4624 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
4625 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
4626 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
4627 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
4628 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
4629 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
4630 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
4631 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
4637 lockmgr(&sc->ciss_lock, LK_RELEASE);