FreeBSD/Linux Kernel Cross Reference
sys/dev/mfi/mfi_pci.c
1 /*-
2 * Copyright (c) 2006 IronPort Systems
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26 /*-
27 * Copyright (c) 2007 LSI Corp.
28 * Copyright (c) 2007 Rajesh Prabhakaran.
29 * All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
33 * are met:
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 */
52
53 #include <sys/cdefs.h>
54 __FBSDID("$FreeBSD: releng/10.0/sys/dev/mfi/mfi_pci.c 255869 2013-09-25 15:48:32Z ambrisko $");
55
56 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */
57
58 #include "opt_mfi.h"
59
60 #include <sys/param.h>
61 #include <sys/systm.h>
62 #include <sys/kernel.h>
63 #include <sys/selinfo.h>
64 #include <sys/module.h>
65 #include <sys/bus.h>
66 #include <sys/conf.h>
67 #include <sys/bio.h>
68 #include <sys/malloc.h>
69 #include <sys/sysctl.h>
70 #include <sys/uio.h>
71
72 #include <machine/bus.h>
73 #include <machine/resource.h>
74 #include <sys/rman.h>
75
76 #include <dev/pci/pcireg.h>
77 #include <dev/pci/pcivar.h>
78
79 #include <dev/mfi/mfireg.h>
80 #include <dev/mfi/mfi_ioctl.h>
81 #include <dev/mfi/mfivar.h>
82
83 static int mfi_pci_probe(device_t);
84 static int mfi_pci_attach(device_t);
85 static int mfi_pci_detach(device_t);
86 static int mfi_pci_suspend(device_t);
87 static int mfi_pci_resume(device_t);
88 static void mfi_pci_free(struct mfi_softc *);
89
90 static device_method_t mfi_methods[] = {
91 DEVMETHOD(device_probe, mfi_pci_probe),
92 DEVMETHOD(device_attach, mfi_pci_attach),
93 DEVMETHOD(device_detach, mfi_pci_detach),
94 DEVMETHOD(device_suspend, mfi_pci_suspend),
95 DEVMETHOD(device_resume, mfi_pci_resume),
96
97 DEVMETHOD_END
98 };
99
100 static driver_t mfi_pci_driver = {
101 "mfi",
102 mfi_methods,
103 sizeof(struct mfi_softc)
104 };
105
106 static devclass_t mfi_devclass;
107 DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, 0, 0);
108 MODULE_VERSION(mfi, 1);
109
110 static int mfi_msi = 1;
111 TUNABLE_INT("hw.mfi.msi", &mfi_msi);
112 SYSCTL_INT(_hw_mfi, OID_AUTO, msi, CTLFLAG_RDTUN, &mfi_msi, 0,
113 "Enable use of MSI interrupts");
114
115 struct mfi_ident {
116 uint16_t vendor;
117 uint16_t device;
118 uint16_t subvendor;
119 uint16_t subdevice;
120 int flags;
121 const char *desc;
122 } mfi_identifiers[] = {
123 {0x1000, 0x005b, 0x1028, 0x1f2d, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H810 Adapter"},
124 {0x1000, 0x005b, 0x1028, 0x1f30, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Embedded"},
125 {0x1000, 0x005b, 0x1028, 0x1f31, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Adapter"},
126 {0x1000, 0x005b, 0x1028, 0x1f33, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Mini (blades)"},
127 {0x1000, 0x005b, 0x1028, 0x1f34, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710P Mini (monolithics)"},
128 {0x1000, 0x005b, 0x1028, 0x1f35, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Adapter"},
129 {0x1000, 0x005b, 0x1028, 0x1f37, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Mini (blades)"},
130 {0x1000, 0x005b, 0x1028, 0x1f38, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Dell PERC H710 Mini (monolithics)"},
131 {0x1000, 0x005b, 0x8086, 0x9265, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Intel (R) RAID Controller RS25DB080"},
132 {0x1000, 0x005b, 0x8086, 0x9285, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Intel (R) RAID Controller RS25NB008"},
133 {0x1000, 0x005b, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "ThunderBolt"},
134 {0x1000, 0x005d, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT, "Invader"},
135 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"},
136 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
137 {0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
138 {0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
139 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
140 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"},
141 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"},
142 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"},
143 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"},
144 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"},
145 {0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"},
146 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"},
147 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"},
148 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
149 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
150 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */
151 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */
152 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"},
153 {0, 0, 0, 0, 0, NULL}
154 };
155
156 static struct mfi_ident *
157 mfi_find_ident(device_t dev)
158 {
159 struct mfi_ident *m;
160
161 for (m = mfi_identifiers; m->vendor != 0; m++) {
162 if ((m->vendor == pci_get_vendor(dev)) &&
163 (m->device == pci_get_device(dev)) &&
164 ((m->subvendor == pci_get_subvendor(dev)) ||
165 (m->subvendor == 0xffff)) &&
166 ((m->subdevice == pci_get_subdevice(dev)) ||
167 (m->subdevice == 0xffff)))
168 return (m);
169 }
170
171 return (NULL);
172 }
173
174 static int
175 mfi_pci_probe(device_t dev)
176 {
177 struct mfi_ident *id;
178
179 if ((id = mfi_find_ident(dev)) != NULL) {
180 device_set_desc(dev, id->desc);
181 return (BUS_PROBE_DEFAULT);
182 }
183 return (ENXIO);
184 }
185
186 static int
187 mfi_pci_attach(device_t dev)
188 {
189 struct mfi_softc *sc;
190 struct mfi_ident *m;
191 int count, error;
192
193 sc = device_get_softc(dev);
194 bzero(sc, sizeof(*sc));
195 sc->mfi_dev = dev;
196 m = mfi_find_ident(dev);
197 sc->mfi_flags = m->flags;
198
199 /* Ensure busmastering is enabled */
200 pci_enable_busmaster(dev);
201
202 /* Allocate PCI registers */
203 if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
204 (sc->mfi_flags & MFI_FLAGS_1078)) {
205 /* 1068/1078: Memory mapped BAR is at offset 0x10 */
206 sc->mfi_regs_rid = PCIR_BAR(0);
207 }
208 else if ((sc->mfi_flags & MFI_FLAGS_GEN2) ||
209 (sc->mfi_flags & MFI_FLAGS_SKINNY) ||
210 (sc->mfi_flags & MFI_FLAGS_TBOLT)) {
211 /* Gen2/Skinny: Memory mapped BAR is at offset 0x14 */
212 sc->mfi_regs_rid = PCIR_BAR(1);
213 }
214 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
215 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) {
216 device_printf(dev, "Cannot allocate PCI registers\n");
217 return (ENXIO);
218 }
219 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
220 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
221
222 error = ENOMEM;
223
224 /* Allocate parent DMA tag */
225 if (bus_dma_tag_create( bus_get_dma_tag(dev), /* PCI parent */
226 1, 0, /* algnmnt, boundary */
227 BUS_SPACE_MAXADDR, /* lowaddr */
228 BUS_SPACE_MAXADDR, /* highaddr */
229 NULL, NULL, /* filter, filterarg */
230 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
231 BUS_SPACE_UNRESTRICTED, /* nsegments */
232 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
233 0, /* flags */
234 NULL, NULL, /* lockfunc, lockarg */
235 &sc->mfi_parent_dmat)) {
236 device_printf(dev, "Cannot allocate parent DMA tag\n");
237 goto out;
238 }
239
240 /* Allocate IRQ resource. */
241 sc->mfi_irq_rid = 0;
242 count = 1;
243 if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
244 device_printf(sc->mfi_dev, "Using MSI\n");
245 sc->mfi_irq_rid = 1;
246 }
247 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
248 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
249 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
250 error = EINVAL;
251 goto out;
252 }
253
254 error = mfi_attach(sc);
255 out:
256 if (error) {
257 mfi_free(sc);
258 mfi_pci_free(sc);
259 }
260
261 return (error);
262 }
263
264 static int
265 mfi_pci_detach(device_t dev)
266 {
267 struct mfi_softc *sc;
268 int error, devcount, i;
269 device_t *devlist;
270
271 sc = device_get_softc(dev);
272
273 sx_xlock(&sc->mfi_config_lock);
274 mtx_lock(&sc->mfi_io_lock);
275 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
276 mtx_unlock(&sc->mfi_io_lock);
277 sx_xunlock(&sc->mfi_config_lock);
278 return (EBUSY);
279 }
280 sc->mfi_detaching = 1;
281 mtx_unlock(&sc->mfi_io_lock);
282
283 if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) {
284 sx_xunlock(&sc->mfi_config_lock);
285 return error;
286 }
287 for (i = 0; i < devcount; i++)
288 device_delete_child(sc->mfi_dev, devlist[i]);
289 free(devlist, M_TEMP);
290 sx_xunlock(&sc->mfi_config_lock);
291
292 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
293
294 mfi_shutdown(sc);
295 mfi_free(sc);
296 mfi_pci_free(sc);
297 return (0);
298 }
299
300 static void
301 mfi_pci_free(struct mfi_softc *sc)
302 {
303
304 if (sc->mfi_regs_resource != NULL) {
305 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY,
306 sc->mfi_regs_rid, sc->mfi_regs_resource);
307 }
308 if (sc->mfi_irq_rid != 0)
309 pci_release_msi(sc->mfi_dev);
310
311 return;
312 }
313
314 static int
315 mfi_pci_suspend(device_t dev)
316 {
317
318 return (EINVAL);
319 }
320
321 static int
322 mfi_pci_resume(device_t dev)
323 {
324
325 return (EINVAL);
326 }
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