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/10.1/sys/dev/mfi/mfi_pci.c 270732 2014-08-27 21:11:19Z markj $");
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 static int mfi_mrsas_enable = 0;
116 TUNABLE_INT("hw.mfi.mrsas_enable", &mfi_mrsas_enable);
117 SYSCTL_INT(_hw_mfi, OID_AUTO, mrsas_enable, CTLFLAG_RDTUN, &mfi_mrsas_enable,
118 0, "Allow mrasas to take newer cards");
119
120 struct mfi_ident {
121 uint16_t vendor;
122 uint16_t device;
123 uint16_t subvendor;
124 uint16_t subdevice;
125 int flags;
126 const char *desc;
127 } mfi_identifiers[] = {
128 {0x1000, 0x005b, 0x1028, 0x1f2d, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H810 Adapter"},
129 {0x1000, 0x005b, 0x1028, 0x1f30, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Embedded"},
130 {0x1000, 0x005b, 0x1028, 0x1f31, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Adapter"},
131 {0x1000, 0x005b, 0x1028, 0x1f33, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (blades)"},
132 {0x1000, 0x005b, 0x1028, 0x1f34, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (monolithics)"},
133 {0x1000, 0x005b, 0x1028, 0x1f35, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Adapter"},
134 {0x1000, 0x005b, 0x1028, 0x1f37, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (blades)"},
135 {0x1000, 0x005b, 0x1028, 0x1f38, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (monolithics)"},
136 {0x1000, 0x005b, 0x8086, 0x9265, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25DB080"},
137 {0x1000, 0x005b, 0x8086, 0x9285, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25NB008"},
138 {0x1000, 0x005b, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "ThunderBolt"},
139 {0x1000, 0x005d, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_INVADER, "Invader"},
140 {0x1000, 0x005f, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_FURY, "Fury"},
141 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"},
142 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
143 {0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
144 {0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
145 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
146 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"},
147 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"},
148 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"},
149 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"},
150 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"},
151 {0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"},
152 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"},
153 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"},
154 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
155 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
156 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */
157 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */
158 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"},
159 {0, 0, 0, 0, 0, NULL}
160 };
161
162 static struct mfi_ident *
163 mfi_find_ident(device_t dev)
164 {
165 struct mfi_ident *m;
166
167 for (m = mfi_identifiers; m->vendor != 0; m++) {
168 if ((m->vendor == pci_get_vendor(dev)) &&
169 (m->device == pci_get_device(dev)) &&
170 ((m->subvendor == pci_get_subvendor(dev)) ||
171 (m->subvendor == 0xffff)) &&
172 ((m->subdevice == pci_get_subdevice(dev)) ||
173 (m->subdevice == 0xffff)))
174 return (m);
175 }
176
177 return (NULL);
178 }
179
180 static int
181 mfi_pci_probe(device_t dev)
182 {
183 struct mfi_ident *id;
184
185 if ((id = mfi_find_ident(dev)) != NULL) {
186 device_set_desc(dev, id->desc);
187
188 /* give priority to mrsas if tunable set */
189 TUNABLE_INT_FETCH("hw.mfi.mrsas_enable", &mfi_mrsas_enable);
190 if ((id->flags & MFI_FLAGS_MRSAS) && mfi_mrsas_enable)
191 return (BUS_PROBE_LOW_PRIORITY);
192 else
193 return (BUS_PROBE_DEFAULT);
194 }
195 return (ENXIO);
196 }
197
198 static int
199 mfi_pci_attach(device_t dev)
200 {
201 struct mfi_softc *sc;
202 struct mfi_ident *m;
203 int count, error;
204
205 sc = device_get_softc(dev);
206 bzero(sc, sizeof(*sc));
207 sc->mfi_dev = dev;
208 m = mfi_find_ident(dev);
209 sc->mfi_flags = m->flags;
210
211 /* Ensure busmastering is enabled */
212 pci_enable_busmaster(dev);
213
214 /* Allocate PCI registers */
215 if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
216 (sc->mfi_flags & MFI_FLAGS_1078)) {
217 /* 1068/1078: Memory mapped BAR is at offset 0x10 */
218 sc->mfi_regs_rid = PCIR_BAR(0);
219 }
220 else if ((sc->mfi_flags & MFI_FLAGS_GEN2) ||
221 (sc->mfi_flags & MFI_FLAGS_SKINNY) ||
222 (sc->mfi_flags & MFI_FLAGS_TBOLT)) {
223 /* Gen2/Skinny: Memory mapped BAR is at offset 0x14 */
224 sc->mfi_regs_rid = PCIR_BAR(1);
225 }
226 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
227 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) {
228 device_printf(dev, "Cannot allocate PCI registers\n");
229 return (ENXIO);
230 }
231 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
232 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
233
234 error = ENOMEM;
235
236 /* Allocate parent DMA tag */
237 if (bus_dma_tag_create( bus_get_dma_tag(dev), /* PCI parent */
238 1, 0, /* algnmnt, boundary */
239 BUS_SPACE_MAXADDR, /* lowaddr */
240 BUS_SPACE_MAXADDR, /* highaddr */
241 NULL, NULL, /* filter, filterarg */
242 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
243 BUS_SPACE_UNRESTRICTED, /* nsegments */
244 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
245 0, /* flags */
246 NULL, NULL, /* lockfunc, lockarg */
247 &sc->mfi_parent_dmat)) {
248 device_printf(dev, "Cannot allocate parent DMA tag\n");
249 goto out;
250 }
251
252 /* Allocate IRQ resource. */
253 sc->mfi_irq_rid = 0;
254 count = 1;
255 if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
256 device_printf(sc->mfi_dev, "Using MSI\n");
257 sc->mfi_irq_rid = 1;
258 }
259 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
260 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
261 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
262 error = EINVAL;
263 goto out;
264 }
265
266 error = mfi_attach(sc);
267 out:
268 if (error) {
269 mfi_free(sc);
270 mfi_pci_free(sc);
271 }
272
273 return (error);
274 }
275
276 static int
277 mfi_pci_detach(device_t dev)
278 {
279 struct mfi_softc *sc;
280 int error, devcount, i;
281 device_t *devlist;
282
283 sc = device_get_softc(dev);
284
285 sx_xlock(&sc->mfi_config_lock);
286 mtx_lock(&sc->mfi_io_lock);
287 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
288 mtx_unlock(&sc->mfi_io_lock);
289 sx_xunlock(&sc->mfi_config_lock);
290 return (EBUSY);
291 }
292 sc->mfi_detaching = 1;
293 mtx_unlock(&sc->mfi_io_lock);
294
295 if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) {
296 sx_xunlock(&sc->mfi_config_lock);
297 return error;
298 }
299 for (i = 0; i < devcount; i++)
300 device_delete_child(sc->mfi_dev, devlist[i]);
301 free(devlist, M_TEMP);
302 sx_xunlock(&sc->mfi_config_lock);
303
304 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
305
306 mfi_shutdown(sc);
307 mfi_free(sc);
308 mfi_pci_free(sc);
309 return (0);
310 }
311
312 static void
313 mfi_pci_free(struct mfi_softc *sc)
314 {
315
316 if (sc->mfi_regs_resource != NULL) {
317 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY,
318 sc->mfi_regs_rid, sc->mfi_regs_resource);
319 }
320 if (sc->mfi_irq_rid != 0)
321 pci_release_msi(sc->mfi_dev);
322
323 return;
324 }
325
326 static int
327 mfi_pci_suspend(device_t dev)
328 {
329
330 return (EINVAL);
331 }
332
333 static int
334 mfi_pci_resume(device_t dev)
335 {
336
337 return (EINVAL);
338 }
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