2 * Copyright (c) 2006 IronPort Systems
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 * Copyright (c) 2007 LSI Corp.
28 * Copyright (c) 2007 Rajesh Prabhakaran.
29 * All rights reserved.
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
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.
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
53 #include <sys/cdefs.h>
54 __FBSDID("$FreeBSD$");
56 /* PCI/PCI-X/PCIe bus interface for the LSI MegaSAS controllers */
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>
68 #include <sys/malloc.h>
69 #include <sys/sysctl.h>
72 #include <machine/bus.h>
73 #include <machine/resource.h>
76 #include <dev/pci/pcireg.h>
77 #include <dev/pci/pcivar.h>
79 #include <dev/mfi/mfireg.h>
80 #include <dev/mfi/mfi_ioctl.h>
81 #include <dev/mfi/mfivar.h>
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 *);
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),
100 static driver_t mfi_pci_driver = {
103 sizeof(struct mfi_softc)
106 static devclass_t mfi_devclass;
107 DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, 0, 0);
108 MODULE_VERSION(mfi, 1);
110 static int mfi_msi = 0;
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");
122 } mfi_identifiers[] = {
123 {0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"},
124 {0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
125 {0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
126 {0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"},
127 {0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"},
128 {0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"},
129 {0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"},
130 {0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"},
131 {0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"},
132 {0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"},
133 {0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
134 {0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
135 {0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */
136 {0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */
137 {0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"},
138 {0, 0, 0, 0, 0, NULL}
141 static struct mfi_ident *
142 mfi_find_ident(device_t dev)
146 for (m = mfi_identifiers; m->vendor != 0; m++) {
147 if ((m->vendor == pci_get_vendor(dev)) &&
148 (m->device == pci_get_device(dev)) &&
149 ((m->subvendor == pci_get_subvendor(dev)) ||
150 (m->subvendor == 0xffff)) &&
151 ((m->subdevice == pci_get_subdevice(dev)) ||
152 (m->subdevice == 0xffff)))
160 mfi_pci_probe(device_t dev)
162 struct mfi_ident *id;
164 if ((id = mfi_find_ident(dev)) != NULL) {
165 device_set_desc(dev, id->desc);
166 return (BUS_PROBE_DEFAULT);
172 mfi_pci_attach(device_t dev)
174 struct mfi_softc *sc;
179 sc = device_get_softc(dev);
180 bzero(sc, sizeof(*sc));
182 m = mfi_find_ident(dev);
183 sc->mfi_flags = m->flags;
185 /* Verify that the adapter can be set up in PCI space */
186 command = pci_read_config(dev, PCIR_COMMAND, 2);
187 command |= PCIM_CMD_BUSMASTEREN;
188 pci_write_config(dev, PCIR_COMMAND, command, 2);
189 command = pci_read_config(dev, PCIR_COMMAND, 2);
190 if ((command & PCIM_CMD_BUSMASTEREN) == 0) {
191 device_printf(dev, "Can't enable PCI busmaster\n");
194 if ((command & PCIM_CMD_MEMEN) == 0) {
195 device_printf(dev, "PCI memory window not available\n");
199 /* Allocate PCI registers */
200 if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
201 (sc->mfi_flags & MFI_FLAGS_1078)) {
202 /* 1068/1078: Memory mapped BAR is at offset 0x10 */
203 sc->mfi_regs_rid = PCIR_BAR(0);
204 } else if (sc->mfi_flags & MFI_FLAGS_GEN2) {
205 /* GEN2: Memory mapped BAR is at offset 0x14 */
206 sc->mfi_regs_rid = PCIR_BAR(1);
208 if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
209 SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) {
210 device_printf(dev, "Cannot allocate PCI registers\n");
213 sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
214 sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
218 /* Allocate parent DMA tag */
219 if (bus_dma_tag_create( NULL, /* parent */
220 1, 0, /* algnmnt, boundary */
221 BUS_SPACE_MAXADDR, /* lowaddr */
222 BUS_SPACE_MAXADDR, /* highaddr */
223 NULL, NULL, /* filter, filterarg */
224 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
225 BUS_SPACE_UNRESTRICTED, /* nsegments */
226 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
228 NULL, NULL, /* lockfunc, lockarg */
229 &sc->mfi_parent_dmat)) {
230 device_printf(dev, "Cannot allocate parent DMA tag\n");
234 /* Allocate IRQ resource. */
237 if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
238 device_printf(sc->mfi_dev, "Using MSI\n");
241 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
242 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
243 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
248 error = mfi_attach(sc);
259 mfi_pci_detach(device_t dev)
261 struct mfi_softc *sc;
265 sc = device_get_softc(dev);
267 sx_xlock(&sc->mfi_config_lock);
268 mtx_lock(&sc->mfi_io_lock);
269 if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
270 mtx_unlock(&sc->mfi_io_lock);
271 sx_xunlock(&sc->mfi_config_lock);
274 sc->mfi_detaching = 1;
275 mtx_unlock(&sc->mfi_io_lock);
277 while ((ld = TAILQ_FIRST(&sc->mfi_ld_tqh)) != NULL) {
278 if ((error = device_delete_child(dev, ld->ld_dev)) != 0) {
279 sc->mfi_detaching = 0;
280 sx_xunlock(&sc->mfi_config_lock);
284 sx_xunlock(&sc->mfi_config_lock);
286 EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
295 mfi_pci_free(struct mfi_softc *sc)
298 if (sc->mfi_regs_resource != NULL) {
299 bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY,
300 sc->mfi_regs_rid, sc->mfi_regs_resource);
302 if (sc->mfi_irq_rid != 0)
303 pci_release_msi(sc->mfi_dev);
309 mfi_pci_suspend(device_t dev)
316 mfi_pci_resume(device_t dev)