Clean up the namespace of <sys/timeb.h>.
[dragonfly.git] / sys / dev / raid / aac / aac_pci.c
1 /*-
2  * Copyright (c) 2000 Michael Smith
3  * Copyright (c) 2001 Scott Long
4  * Copyright (c) 2000 BSDi
5  * Copyright (c) 2001 Adaptec, Inc.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD: head/sys/dev/aac/aac_pci.c 254005 2013-08-06 19:14:02Z marius $
30  */
31
32 /*
33  * PCI bus interface and resource allocation.
34  */
35
36 #include "opt_aac.h"
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/module.h>
42
43 #include <sys/bio.h>
44 #include <sys/bus.h>
45 #include <sys/conf.h>
46 #include <sys/disk.h>
47
48 #include <sys/rman.h>
49
50 #include <bus/pci/pcireg.h>
51 #include <bus/pci/pcivar.h>
52
53 #include <dev/raid/aac/aacreg.h>
54 #include <dev/raid/aac/aac_ioctl.h>
55 #include <dev/raid/aac/aacvar.h>
56
57 static int      aac_pci_probe(device_t dev);
58 static int      aac_pci_attach(device_t dev);
59
60 static int aac_msi_enable = 1;
61 TUNABLE_INT("hw.mfi.msi.enable", &aac_msi_enable);
62
63 static device_method_t aac_methods[] = {
64         /* Device interface */
65         DEVMETHOD(device_probe,         aac_pci_probe),
66         DEVMETHOD(device_attach,        aac_pci_attach),
67         DEVMETHOD(device_detach,        aac_detach),
68         DEVMETHOD(device_suspend,       aac_suspend),
69         DEVMETHOD(device_resume,        aac_resume),
70
71         DEVMETHOD_END
72 };
73
74 static driver_t aac_pci_driver = {
75         "aac",
76         aac_methods,
77         sizeof(struct aac_softc)
78 };
79
80 static devclass_t       aac_devclass;
81
82 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, NULL, NULL);
83 MODULE_DEPEND(aac, pci, 1, 1, 1);
84
85
86 static const struct aac_ident
87 {
88         u_int16_t               vendor;
89         u_int16_t               device;
90         u_int16_t               subvendor;
91         u_int16_t               subdevice;
92         int                     hwif;
93         int                     quirks;
94         const char              *desc;
95 } aac_identifiers[] = {
96         {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
97         "Dell PERC 2/Si"},
98         {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
99         "Dell PERC 3/Di"},
100         {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
101         "Dell PERC 3/Si"},
102         {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
103         "Dell PERC 3/Si"},
104         {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
105         "Dell PERC 3/Di"},
106         {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
107         "Dell PERC 3/Di"},
108         {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
109         "Dell PERC 3/Di"},
110         {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
111         "Dell PERC 3/Di"},
112         {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
113         "Dell PERC 3/Di"},
114         {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
115         "Adaptec AAC-364"},
116         {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM,
117          AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"},
118         {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
119          "Dell PERC 2/QC"},
120         {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
121          "HP NetRaid-4M"},
122         {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
123          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
124         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
125          AAC_FLAGS_256FIBS, "Dell PERC 320/DC"},
126         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
127          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"},
128         {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
129          "Adaptec SATA RAID 2410SA"},
130         {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
131          "Dell CERC SATA RAID 2"},
132         {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
133          "Adaptec SATA RAID 2810SA"},
134         {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
135          "Adaptec SATA RAID 21610SA"},
136         {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
137          "HP ML110 G2 (Adaptec 2610SA)"},
138         {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, AAC_FLAGS_NOMSI,
139          "Adaptec SCSI RAID 2230S"},
140         {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0,
141          "Adaptec SCSI RAID 2130S"},
142         {0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
143          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
144         {0x9005, 0x0285, 0x17aa, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
145          AAC_FLAGS_256FIBS, "Legend S220"},
146         {0x9005, 0x0285, 0x17aa, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
147          AAC_FLAGS_256FIBS, "Legend S230"},
148         {0x9005, 0x0285, 0x9005, 0x0288, AAC_HWIF_I960RX, 0,
149          "Adaptec SCSI RAID 3230S"},
150         {0x9005, 0x0285, 0x9005, 0x0289, AAC_HWIF_I960RX, 0,
151          "Adaptec SCSI RAID 3240S"},
152         {0x9005, 0x0285, 0x9005, 0x028a, AAC_HWIF_I960RX, 0,
153          "Adaptec SCSI RAID 2020ZCR"},
154         {0x9005, 0x0285, 0x9005, 0x028b, AAC_HWIF_I960RX, 0,
155          "Adaptec SCSI RAID 2025ZCR"},
156         {0x9005, 0x0286, 0x9005, 0x029b, AAC_HWIF_RKT, AAC_FLAGS_NOMSI,
157          "Adaptec SATA RAID 2820SA"},
158         {0x9005, 0x0286, 0x9005, 0x029c, AAC_HWIF_RKT, 0,
159          "Adaptec SATA RAID 2620SA"},
160         {0x9005, 0x0286, 0x9005, 0x029d, AAC_HWIF_RKT, 0,
161          "Adaptec SATA RAID 2420SA"},
162         {0x9005, 0x0286, 0x9005, 0x029e, AAC_HWIF_RKT, 0,
163          "ICP ICP9024RO SCSI RAID"},
164         {0x9005, 0x0286, 0x9005, 0x029f, AAC_HWIF_RKT, 0,
165          "ICP ICP9014RO SCSI RAID"},
166         {0x9005, 0x0285, 0x9005, 0x0294, AAC_HWIF_I960RX, 0,
167          "Adaptec SATA RAID 2026ZCR"},
168         {0x9005, 0x0285, 0x9005, 0x0296, AAC_HWIF_I960RX, 0,
169          "Adaptec SCSI RAID 2240S"},
170         {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0,
171          "Adaptec SAS RAID 4005SAS"},
172         {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0,
173          "IBM ServeRAID 8i"},
174         {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0,
175          "IBM ServeRAID 8i"},
176         {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0,
177          "Adaptec RAID 4000"},
178         {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0,
179          "Adaptec SAS RAID 4800SAS"},
180         {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0,
181          "Adaptec SAS RAID 4805SAS"},
182         {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0,
183          "Adaptec SATA RAID 2020SA ZCR"},
184         {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0,
185          "Adaptec SATA RAID 2025SA ZCR"},
186         {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0,
187          "ICP ICP9085LI SAS RAID"},
188         {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0,
189          "ICP ICP5085BR SAS RAID"},
190         {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0,
191          "ICP ICP9047MA SATA RAID"},
192         {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0,
193          "ICP ICP9087MA SATA RAID"},
194         {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0,
195          "ICP9067MA SATA RAID"},
196         {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0,
197          "Adaptec RAID 5445"},
198         {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0,
199          "Adaptec RAID 5805"},
200         {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0,
201          "Adaptec RAID 5085"},
202         {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0,
203          "ICP RAID ICP5445SL"},
204         {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0,
205          "ICP RAID ICP5085SL"},
206         {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0,
207          "ICP RAID ICP5805SL"},
208         {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0,
209          "Adaptec RAID 3405"},
210         {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0,
211          "Adaptec RAID 3805"},
212         {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0,
213          "Adaptec RAID 31205"},
214         {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0,
215          "Adaptec RAID 31605"},
216         {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0,
217          "ICP RAID ICP5045BL"},
218         {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0,
219          "ICP RAID ICP5085BL"},
220         {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0,
221          "ICP RAID ICP5125BR"},
222         {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0,
223          "ICP RAID ICP5165BR"},
224         {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0,
225          "Adaptec RAID 51205"},
226         {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0,
227          "Adaptec RAID 51605"},
228         {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0,
229          "ICP RAID ICP5125SL"},
230         {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0,
231          "ICP RAID ICP5165SL"},
232         {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0,
233          "Adaptec RAID 3085"},
234         {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0,
235          "ICP RAID ICP5805BL"},
236         {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0,
237          "Adaptec RAID 51245"},
238         {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0,
239          "Adaptec RAID 51645"},
240         {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0,
241          "Adaptec RAID 52445"},
242         {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0,
243          "Adaptec RAID 5405"},
244         {0x9005, 0x0285, 0x9005, 0x02d4, AAC_HWIF_I960RX, 0,
245          "Adaptec RAID 2045"},
246         {0x9005, 0x0285, 0x9005, 0x02d5, AAC_HWIF_I960RX, 0,
247          "Adaptec RAID 2405"},
248         {0x9005, 0x0285, 0x9005, 0x02d6, AAC_HWIF_I960RX, 0,
249          "Adaptec RAID 2445"},
250         {0x9005, 0x0285, 0x9005, 0x02d7, AAC_HWIF_I960RX, 0,
251          "Adaptec RAID 2805"},
252         {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0,
253          "IBM ServeRAID-8k"},
254         {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0,
255          "IBM ServeRAID 8s"},
256         {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0,
257          "Sun STK RAID REM"},
258         {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0,
259          "Sun STK RAID EM"},
260         {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0,
261          "SG-XPCIESAS-R-IN"},
262         {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0,
263          "SG-XPCIESAS-R-EX"},
264         {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0,
265          "AOC-USAS-S4i"},
266         {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0,
267          "AOC-USAS-S8i"},
268         {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0,
269          "AOC-USAS-S4iR"},
270         {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0,
271          "AOC-USAS-S8iR"},
272         {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0,
273          "AOC-USAS-S8i-LP"},
274         {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0,
275          "AOC-USAS-S8iR-LP"},
276         {0, 0, 0, 0, 0, 0, 0}
277 };
278
279 static const struct aac_ident
280 aac_family_identifiers[] = {
281         {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0,
282          "Adaptec RAID Controller"},
283         {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0,
284          "Adaptec RAID Controller"},
285         {0, 0, 0, 0, 0, 0, 0}
286 };
287
288 static const struct aac_ident *
289 aac_find_ident(device_t dev)
290 {
291         const struct aac_ident *m;
292         u_int16_t vendid, devid, sub_vendid, sub_devid;
293
294         vendid = pci_get_vendor(dev);
295         devid = pci_get_device(dev);
296         sub_vendid = pci_get_subvendor(dev);
297         sub_devid = pci_get_subdevice(dev);
298
299         for (m = aac_identifiers; m->vendor != 0; m++) {
300                 if ((m->vendor == vendid) && (m->device == devid) &&
301                     (m->subvendor == sub_vendid) &&
302                     (m->subdevice == sub_devid))
303                         return (m);
304         }
305
306         for (m = aac_family_identifiers; m->vendor != 0; m++) {
307                 if ((m->vendor == vendid) && (m->device == devid))
308                         return (m);
309         }
310         return (NULL);
311 }
312
313 /*
314  * Determine whether this is one of our supported adapters.
315  */
316 static int
317 aac_pci_probe(device_t dev)
318 {
319         const struct aac_ident *id;
320
321         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
322
323         if ((id = aac_find_ident(dev)) != NULL) {
324                 device_set_desc(dev, id->desc);
325                 return(BUS_PROBE_DEFAULT);
326         }
327         return(ENXIO);
328 }
329
330 /*
331  * Allocate resources for our device, set up the bus interface.
332  */
333 static int
334 aac_pci_attach(device_t dev)
335 {
336         struct aac_softc *sc;
337         const struct aac_ident *id;
338         int error, rid;
339         u_int irq_flags;
340
341         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
342
343         /*
344          * Initialise softc.
345          */
346         sc = device_get_softc(dev);
347         sc->aac_dev = dev;
348
349         /* assume failure is 'not configured' */
350         error = ENXIO;
351
352         /*
353          * Verify that the adapter is correctly set up in PCI space.
354          */
355         pci_enable_busmaster(dev);
356         if (!(pci_read_config(dev, PCIR_COMMAND, 2) & PCIM_CMD_BUSMASTEREN)) {
357                 device_printf(dev, "can't enable bus-master feature\n");
358                 goto out;
359         }
360
361         /*
362          * Detect the hardware interface version, set up the bus interface
363          * indirection.
364          */
365         id = aac_find_ident(dev);
366         sc->aac_hwif = id->hwif;
367         switch(sc->aac_hwif) {
368         case AAC_HWIF_I960RX:
369         case AAC_HWIF_NARK:
370                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
371                     "set hardware up for i960Rx/NARK");
372                 sc->aac_if = &aac_rx_interface;
373                 break;
374         case AAC_HWIF_STRONGARM:
375                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
376                     "set hardware up for StrongARM");
377                 sc->aac_if = &aac_sa_interface;
378                 break;
379         case AAC_HWIF_RKT:
380                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
381                     "set hardware up for Rocket/MIPS");
382                 sc->aac_if = &aac_rkt_interface;
383                 break;
384         default:
385                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
386                 device_printf(dev, "unknown hardware type\n");
387                 goto out;
388         }
389
390         /* Set up quirks */
391         sc->flags = id->quirks;
392
393         /*
394          * Allocate the PCI register window(s).
395          */
396         rid = PCIR_BAR(0);
397         if ((sc->aac_regs_res0 = bus_alloc_resource_any(dev,
398             SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) {
399                 device_printf(dev, "can't allocate register window 0\n");
400                 goto out;
401         }
402         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
403         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
404
405         if (sc->aac_hwif == AAC_HWIF_NARK) {
406                 rid = PCIR_BAR(1);
407                 if ((sc->aac_regs_res1 = bus_alloc_resource_any(dev,
408                     SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) {
409                         device_printf(dev,
410                             "can't allocate register window 1\n");
411                         goto out;
412                 }
413                 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
414                 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
415         } else {
416                 sc->aac_regs_res1 = sc->aac_regs_res0;
417                 sc->aac_btag1 = sc->aac_btag0;
418                 sc->aac_bhandle1 = sc->aac_bhandle0;
419         }
420
421         /*
422          * Allocate the interrupt.
423          */
424         sc->aac_irq_rid = 0;
425         if ((sc->flags & AAC_FLAGS_NOMSI) != 0)
426                 aac_msi_enable = 0;
427         sc->aac_irq_type = pci_alloc_1intr(sc->aac_dev, aac_msi_enable,
428             &sc->aac_irq_rid, &irq_flags);
429         if ((sc->aac_irq = bus_alloc_resource_any(sc->aac_dev, SYS_RES_IRQ,
430             &sc->aac_irq_rid, irq_flags)) == NULL) {
431                 device_printf(dev, "can't allocate interrupt\n");
432                 goto out;
433         }
434
435         /*
436          * Allocate the parent bus DMA tag appropriate for our PCI interface.
437          *
438          * Note that some of these controllers are 64-bit capable.
439          */
440         if (bus_dma_tag_create(bus_get_dma_tag(dev),    /* parent */
441                                PAGE_SIZE, 0,            /* algnmnt, boundary */
442                                BUS_SPACE_MAXADDR,       /* lowaddr */
443                                BUS_SPACE_MAXADDR,       /* highaddr */
444                                NULL, NULL,              /* filter, filterarg */
445                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
446                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
447                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
448                                0,                       /* flags */
449                                &sc->aac_parent_dmat)) {
450                 device_printf(dev, "can't allocate parent DMA tag\n");
451                 goto out;
452         }
453
454         /*
455          * Do bus-independent initialisation.
456          */
457         error = aac_attach(sc);
458
459 out:
460         if (error)
461                 aac_free(sc);
462         return(error);
463 }
464
465 /*
466  * Do nothing driver that will attach to the SCSI channels of a Dell PERC
467  * controller.  This is needed to keep the power management subsystem from
468  * trying to power down these devices.
469  */
470 static int aacch_probe(device_t dev);
471 static int aacch_attach(device_t dev);
472 static int aacch_detach(device_t dev);
473
474 static device_method_t aacch_methods[] = {
475         /* Device interface */
476         DEVMETHOD(device_probe,         aacch_probe),
477         DEVMETHOD(device_attach,        aacch_attach),
478         DEVMETHOD(device_detach,        aacch_detach),
479         DEVMETHOD_END
480 };
481
482 struct aacch_softc {
483         device_t        dev;
484 };
485
486 static driver_t aacch_driver = {
487         "aacch",
488         aacch_methods,
489         sizeof(struct aacch_softc)
490 };
491
492 static devclass_t       aacch_devclass;
493 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, NULL, NULL);
494
495 static int
496 aacch_probe(device_t dev)
497 {
498
499         if ((pci_get_vendor(dev) != 0x9005) ||
500             (pci_get_device(dev) != 0x00c5))
501                 return (ENXIO);
502
503         device_set_desc(dev, "AAC RAID Channel");
504         return (-10);
505 }
506
507 static int
508 aacch_attach(device_t dev __unused)
509 {
510
511         return (0);
512 }
513
514 static int
515 aacch_detach(device_t dev __unused)
516 {
517
518         return (0);
519 }