1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000 Michael Smith
5 * Copyright (c) 2001 Scott Long
6 * Copyright (c) 2000 BSDi
7 * Copyright (c) 2001 Adaptec, Inc.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 /*
34 * PCI bus interface and resource allocation.
35 */
36
37 #include "opt_aac.h"
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
43
44 #include <sys/bio.h>
45 #include <sys/bus.h>
46 #include <sys/conf.h>
47 #include <sys/disk.h>
48
49 #include <machine/bus.h>
50 #include <machine/resource.h>
51 #include <sys/rman.h>
52
53 #include <dev/pci/pcireg.h>
54 #include <dev/pci/pcivar.h>
55
56 #include <dev/aac/aacreg.h>
57 #include <sys/aac_ioctl.h>
58 #include <dev/aac/aacvar.h>
59
60 static int aac_pci_probe(device_t dev);
61 static int aac_pci_attach(device_t dev);
62
63 static int aac_enable_msi = 1;
64 SYSCTL_INT(_hw_aac, OID_AUTO, enable_msi, CTLFLAG_RDTUN, &aac_enable_msi, 0,
65 "Enable MSI interrupts");
66
67 static device_method_t aac_methods[] = {
68 /* Device interface */
69 DEVMETHOD(device_probe, aac_pci_probe),
70 DEVMETHOD(device_attach, aac_pci_attach),
71 DEVMETHOD(device_detach, aac_detach),
72 DEVMETHOD(device_suspend, aac_suspend),
73 DEVMETHOD(device_resume, aac_resume),
74
75 DEVMETHOD_END
76 };
77
78 static driver_t aac_pci_driver = {
79 "aac",
80 aac_methods,
81 sizeof(struct aac_softc)
82 };
83
84 DRIVER_MODULE(aac, pci, aac_pci_driver, NULL, NULL);
85 MODULE_DEPEND(aac, pci, 1, 1, 1);
86
87 static const struct aac_ident
88 {
89 u_int16_t vendor;
90 u_int16_t device;
91 u_int16_t subvendor;
92 u_int16_t subdevice;
93 int hwif;
94 int quirks;
95 const char *desc;
96 } aac_identifiers[] = {
97 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
98 "Dell PERC 2/Si"},
99 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
100 "Dell PERC 3/Di"},
101 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
102 "Dell PERC 3/Si"},
103 {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
104 "Dell PERC 3/Si"},
105 {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
106 "Dell PERC 3/Di"},
107 {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
108 "Dell PERC 3/Di"},
109 {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
110 "Dell PERC 3/Di"},
111 {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
112 "Dell PERC 3/Di"},
113 {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
114 "Dell PERC 3/Di"},
115 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
116 "Adaptec AAC-364"},
117 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM,
118 AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"},
119 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
120 "Dell PERC 2/QC"},
121 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
122 "HP NetRaid-4M"},
123 {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
124 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
125 {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
126 AAC_FLAGS_256FIBS, "Dell PERC 320/DC"},
127 {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
128 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"},
129 {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
130 "Adaptec SATA RAID 2410SA"},
131 {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
132 "Dell CERC SATA RAID 2"},
133 {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
134 "Adaptec SATA RAID 2810SA"},
135 {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
136 "Adaptec SATA RAID 21610SA"},
137 {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
138 "HP ML110 G2 (Adaptec 2610SA)"},
139 {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, AAC_FLAGS_NOMSI,
140 "Adaptec SCSI RAID 2230S"},
141 {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0,
142 "Adaptec SCSI RAID 2130S"},
143 {0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
144 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
145 {0x9005, 0x0285, 0x17aa, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
146 AAC_FLAGS_256FIBS, "Legend S220"},
147 {0x9005, 0x0285, 0x17aa, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
148 AAC_FLAGS_256FIBS, "Legend S230"},
149 {0x9005, 0x0285, 0x9005, 0x0288, AAC_HWIF_I960RX, 0,
150 "Adaptec SCSI RAID 3230S"},
151 {0x9005, 0x0285, 0x9005, 0x0289, AAC_HWIF_I960RX, 0,
152 "Adaptec SCSI RAID 3240S"},
153 {0x9005, 0x0285, 0x9005, 0x028a, AAC_HWIF_I960RX, 0,
154 "Adaptec SCSI RAID 2020ZCR"},
155 {0x9005, 0x0285, 0x9005, 0x028b, AAC_HWIF_I960RX, 0,
156 "Adaptec SCSI RAID 2025ZCR"},
157 {0x9005, 0x0286, 0x9005, 0x029b, AAC_HWIF_RKT, AAC_FLAGS_NOMSI,
158 "Adaptec SATA RAID 2820SA"},
159 {0x9005, 0x0286, 0x9005, 0x029c, AAC_HWIF_RKT, 0,
160 "Adaptec SATA RAID 2620SA"},
161 {0x9005, 0x0286, 0x9005, 0x029d, AAC_HWIF_RKT, 0,
162 "Adaptec SATA RAID 2420SA"},
163 {0x9005, 0x0286, 0x9005, 0x029e, AAC_HWIF_RKT, 0,
164 "ICP ICP9024RO SCSI RAID"},
165 {0x9005, 0x0286, 0x9005, 0x029f, AAC_HWIF_RKT, 0,
166 "ICP ICP9014RO SCSI RAID"},
167 {0x9005, 0x0285, 0x9005, 0x0294, AAC_HWIF_I960RX, 0,
168 "Adaptec SATA RAID 2026ZCR"},
169 {0x9005, 0x0285, 0x9005, 0x0296, AAC_HWIF_I960RX, 0,
170 "Adaptec SCSI RAID 2240S"},
171 {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0,
172 "Adaptec SAS RAID 4005SAS"},
173 {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0,
174 "IBM ServeRAID 8i"},
175 {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0,
176 "IBM ServeRAID 8i"},
177 {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0,
178 "Adaptec RAID 4000"},
179 {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0,
180 "Adaptec SAS RAID 4800SAS"},
181 {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0,
182 "Adaptec SAS RAID 4805SAS"},
183 {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0,
184 "Adaptec SATA RAID 2020SA ZCR"},
185 {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0,
186 "Adaptec SATA RAID 2025SA ZCR"},
187 {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0,
188 "ICP ICP9085LI SAS RAID"},
189 {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0,
190 "ICP ICP5085BR SAS RAID"},
191 {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0,
192 "ICP ICP9047MA SATA RAID"},
193 {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0,
194 "ICP ICP9087MA SATA RAID"},
195 {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0,
196 "ICP9067MA SATA RAID"},
197 {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0,
198 "Adaptec RAID 5445"},
199 {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0,
200 "Adaptec RAID 5805"},
201 {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0,
202 "Adaptec RAID 5085"},
203 {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0,
204 "ICP RAID ICP5445SL"},
205 {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0,
206 "ICP RAID ICP5085SL"},
207 {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0,
208 "ICP RAID ICP5805SL"},
209 {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0,
210 "Adaptec RAID 3405"},
211 {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0,
212 "Adaptec RAID 3805"},
213 {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0,
214 "Adaptec RAID 31205"},
215 {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0,
216 "Adaptec RAID 31605"},
217 {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0,
218 "ICP RAID ICP5045BL"},
219 {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0,
220 "ICP RAID ICP5085BL"},
221 {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0,
222 "ICP RAID ICP5125BR"},
223 {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0,
224 "ICP RAID ICP5165BR"},
225 {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0,
226 "Adaptec RAID 51205"},
227 {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0,
228 "Adaptec RAID 51605"},
229 {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0,
230 "ICP RAID ICP5125SL"},
231 {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0,
232 "ICP RAID ICP5165SL"},
233 {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0,
234 "Adaptec RAID 3085"},
235 {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0,
236 "ICP RAID ICP5805BL"},
237 {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0,
238 "Adaptec RAID 51245"},
239 {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0,
240 "Adaptec RAID 51645"},
241 {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0,
242 "Adaptec RAID 52445"},
243 {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0,
244 "Adaptec RAID 5405"},
245 {0x9005, 0x0285, 0x9005, 0x02d4, AAC_HWIF_I960RX, 0,
246 "Adaptec RAID 2045"},
247 {0x9005, 0x0285, 0x9005, 0x02d5, AAC_HWIF_I960RX, 0,
248 "Adaptec RAID 2405"},
249 {0x9005, 0x0285, 0x9005, 0x02d6, AAC_HWIF_I960RX, 0,
250 "Adaptec RAID 2445"},
251 {0x9005, 0x0285, 0x9005, 0x02d7, AAC_HWIF_I960RX, 0,
252 "Adaptec RAID 2805"},
253 {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0,
254 "IBM ServeRAID-8k"},
255 {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0,
256 "IBM ServeRAID 8s"},
257 {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0,
258 "Sun STK RAID REM"},
259 {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0,
260 "Sun STK RAID EM"},
261 {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0,
262 "SG-XPCIESAS-R-IN"},
263 {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0,
264 "SG-XPCIESAS-R-EX"},
265 {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0,
266 "AOC-USAS-S4i"},
267 {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0,
268 "AOC-USAS-S8i"},
269 {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0,
270 "AOC-USAS-S4iR"},
271 {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0,
272 "AOC-USAS-S8iR"},
273 {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0,
274 "AOC-USAS-S8i-LP"},
275 {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0,
276 "AOC-USAS-S8iR-LP"},
277 {0, 0, 0, 0, 0, 0, 0}
278 };
279
280 static const struct aac_ident
281 aac_family_identifiers[] = {
282 {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0,
283 "Adaptec RAID Controller"},
284 {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0,
285 "Adaptec RAID Controller"},
286 {0, 0, 0, 0, 0, 0, 0}
287 };
288
289 static const struct aac_ident *
aac_find_ident(device_t dev)290 aac_find_ident(device_t dev)
291 {
292 const struct aac_ident *m;
293 u_int16_t vendid, devid, sub_vendid, sub_devid;
294
295 vendid = pci_get_vendor(dev);
296 devid = pci_get_device(dev);
297 sub_vendid = pci_get_subvendor(dev);
298 sub_devid = pci_get_subdevice(dev);
299
300 for (m = aac_identifiers; m->vendor != 0; m++) {
301 if ((m->vendor == vendid) && (m->device == devid) &&
302 (m->subvendor == sub_vendid) &&
303 (m->subdevice == sub_devid))
304 return (m);
305 }
306
307 for (m = aac_family_identifiers; m->vendor != 0; m++) {
308 if ((m->vendor == vendid) && (m->device == devid))
309 return (m);
310 }
311 return (NULL);
312 }
313
314 /*
315 * Determine whether this is one of our supported adapters.
316 */
317 static int
aac_pci_probe(device_t dev)318 aac_pci_probe(device_t dev)
319 {
320 const struct aac_ident *id;
321
322 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
323
324 if ((id = aac_find_ident(dev)) != NULL) {
325 device_set_desc(dev, id->desc);
326 return(BUS_PROBE_DEFAULT);
327 }
328 return(ENXIO);
329 }
330
331 /*
332 * Allocate resources for our device, set up the bus interface.
333 */
334 static int
aac_pci_attach(device_t dev)335 aac_pci_attach(device_t dev)
336 {
337 struct aac_softc *sc;
338 const struct aac_ident *id;
339 int count, error, rid;
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 rid = 0;
425 if (aac_enable_msi != 0 && (sc->flags & AAC_FLAGS_NOMSI) == 0) {
426 count = 1;
427 if (pci_alloc_msi(dev, &count) == 0)
428 rid = 1;
429 }
430 if ((sc->aac_irq = bus_alloc_resource_any(sc->aac_dev, SYS_RES_IRQ,
431 &rid, RF_ACTIVE | (rid != 0 ? 0 : RF_SHAREABLE))) == NULL) {
432 device_printf(dev, "can't allocate interrupt\n");
433 goto out;
434 }
435
436 /*
437 * Allocate the parent bus DMA tag appropriate for our PCI interface.
438 *
439 * Note that some of these controllers are 64-bit capable.
440 */
441 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
442 PAGE_SIZE, /* algnmnt */
443 ((bus_size_t)((uint64_t)1 << 32)), /* boundary*/
444 BUS_SPACE_MAXADDR, /* lowaddr */
445 BUS_SPACE_MAXADDR, /* highaddr */
446 NULL, NULL, /* filter, filterarg */
447 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
448 BUS_SPACE_UNRESTRICTED, /* nsegments */
449 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
450 0, /* flags */
451 NULL, NULL, /* No locking needed */
452 &sc->aac_parent_dmat)) {
453 device_printf(dev, "can't allocate parent DMA tag\n");
454 goto out;
455 }
456
457 /*
458 * Do bus-independent initialisation.
459 */
460 error = aac_attach(sc);
461
462 out:
463 if (error)
464 aac_free(sc);
465 return(error);
466 }
467
468 /*
469 * Do nothing driver that will attach to the SCSI channels of a Dell PERC
470 * controller. This is needed to keep the power management subsystem from
471 * trying to power down these devices.
472 */
473 static int aacch_probe(device_t dev);
474 static int aacch_attach(device_t dev);
475 static int aacch_detach(device_t dev);
476
477 static device_method_t aacch_methods[] = {
478 /* Device interface */
479 DEVMETHOD(device_probe, aacch_probe),
480 DEVMETHOD(device_attach, aacch_attach),
481 DEVMETHOD(device_detach, aacch_detach),
482 DEVMETHOD_END
483 };
484
485 static driver_t aacch_driver = {
486 "aacch",
487 aacch_methods,
488 1 /* no softc */
489 };
490
491 DRIVER_MODULE(aacch, pci, aacch_driver, NULL, NULL);
492 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, aacch,
493 aac_identifiers, nitems(aac_identifiers) - 1);
494
495 static int
aacch_probe(device_t dev)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
aacch_attach(device_t dev __unused)508 aacch_attach(device_t dev __unused)
509 {
510
511 return (0);
512 }
513
514 static int
aacch_detach(device_t dev __unused)515 aacch_detach(device_t dev __unused)
516 {
517
518 return (0);
519 }
520