2 * Copyright (c) 2009 Yahoo! Inc.
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 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 /* PCI/PCI-X/PCIe bus interface for the Avago Tech (LSI) MPT2 controllers */
32 /* TODO Move headers to mpsvar */
33 #include <sys/types.h>
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
40 #include <sys/malloc.h>
41 #include <sys/sysctl.h>
44 #include <machine/bus.h>
45 #include <machine/resource.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/pci/pcivar.h>
50 #include <dev/pci/pci_private.h>
52 #include <dev/mps/mpi/mpi2_type.h>
53 #include <dev/mps/mpi/mpi2.h>
54 #include <dev/mps/mpi/mpi2_ioc.h>
55 #include <dev/mps/mpi/mpi2_cnfg.h>
56 #include <dev/mps/mpi/mpi2_tool.h>
58 #include <sys/queue.h>
59 #include <sys/kthread.h>
60 #include <dev/mps/mps_ioctl.h>
61 #include <dev/mps/mpsvar.h>
63 static int mps_pci_probe(device_t);
64 static int mps_pci_attach(device_t);
65 static int mps_pci_detach(device_t);
66 static int mps_pci_suspend(device_t);
67 static int mps_pci_resume(device_t);
68 static void mps_pci_free(struct mps_softc *);
69 static int mps_alloc_msix(struct mps_softc *sc, int msgs);
70 static int mps_alloc_msi(struct mps_softc *sc, int msgs);
71 static int mps_pci_alloc_interrupts(struct mps_softc *sc);
73 static device_method_t mps_methods[] = {
74 DEVMETHOD(device_probe, mps_pci_probe),
75 DEVMETHOD(device_attach, mps_pci_attach),
76 DEVMETHOD(device_detach, mps_pci_detach),
77 DEVMETHOD(device_suspend, mps_pci_suspend),
78 DEVMETHOD(device_resume, mps_pci_resume),
83 static driver_t mps_pci_driver = {
86 sizeof(struct mps_softc)
89 static devclass_t mps_devclass;
90 DRIVER_MODULE(mps, pci, mps_pci_driver, mps_devclass, 0, 0);
91 MODULE_DEPEND(mps, cam, 1, 1, 1);
100 } mps_identifiers[] = {
101 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
102 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2004" },
103 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
104 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2008" },
105 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
106 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2108" },
107 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
108 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2108" },
109 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
110 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2108" },
111 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
112 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2116" },
113 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
114 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2116" },
115 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
116 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
117 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
118 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
119 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
120 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
121 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
122 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
123 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
124 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
125 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
126 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2208" },
127 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
128 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2308" },
129 // Add Customer specific vender/subdevice id before generic
130 // (0xffff) vender/subdevice id.
131 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
132 0x8086, 0x3516, 0, "Intel(R) Integrated RAID Module RMS25JB080" },
133 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
134 0x8086, 0x3517, 0, "Intel(R) Integrated RAID Module RMS25JB040" },
135 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
136 0x8086, 0x3518, 0, "Intel(R) Integrated RAID Module RMS25KB080" },
137 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
138 0x8086, 0x3519, 0, "Intel(R) Integrated RAID Module RMS25KB040" },
139 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
140 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2308" },
141 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
142 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS2308" },
143 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
144 0xffff, 0xffff, 0, "Avago Technologies (LSI) SSS6200" },
145 { 0, 0, 0, 0, 0, NULL }
148 static struct mps_ident *
149 mps_find_ident(device_t dev)
153 for (m = mps_identifiers; m->vendor != 0; m++) {
154 if (m->vendor != pci_get_vendor(dev))
156 if (m->device != pci_get_device(dev))
158 if ((m->subvendor != 0xffff) &&
159 (m->subvendor != pci_get_subvendor(dev)))
161 if ((m->subdevice != 0xffff) &&
162 (m->subdevice != pci_get_subdevice(dev)))
171 mps_pci_probe(device_t dev)
173 struct mps_ident *id;
175 if ((id = mps_find_ident(dev)) != NULL) {
176 device_set_desc(dev, id->desc);
177 return (BUS_PROBE_DEFAULT);
183 mps_pci_attach(device_t dev)
185 struct mps_softc *sc;
189 sc = device_get_softc(dev);
190 bzero(sc, sizeof(*sc));
192 m = mps_find_ident(dev);
193 sc->mps_flags = m->flags;
195 mps_get_tunables(sc);
197 /* Twiddle basic PCI config bits for a sanity check */
198 pci_enable_busmaster(dev);
200 /* Allocate the System Interface Register Set */
201 sc->mps_regs_rid = PCIR_BAR(1);
202 if ((sc->mps_regs_resource = bus_alloc_resource_any(dev,
203 SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) {
204 mps_printf(sc, "Cannot allocate PCI registers\n");
207 sc->mps_btag = rman_get_bustag(sc->mps_regs_resource);
208 sc->mps_bhandle = rman_get_bushandle(sc->mps_regs_resource);
210 /* Allocate the parent DMA tag */
211 if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */
212 1, 0, /* algnmnt, boundary */
213 BUS_SPACE_MAXADDR, /* lowaddr */
214 BUS_SPACE_MAXADDR, /* highaddr */
215 NULL, NULL, /* filter, filterarg */
216 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
217 BUS_SPACE_UNRESTRICTED, /* nsegments */
218 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
220 NULL, NULL, /* lockfunc, lockarg */
221 &sc->mps_parent_dmat)) {
222 mps_printf(sc, "Cannot allocate parent DMA tag\n");
227 if (((error = mps_pci_alloc_interrupts(sc)) != 0) ||
228 ((error = mps_attach(sc)) != 0))
235 * Allocate, but don't assign interrupts early. Doing it before requesting
236 * the IOCFacts message informs the firmware that we want to do MSI-X
237 * multiqueue. We might not use all of the available messages, but there's
238 * no reason to re-alloc if we don't.
241 mps_pci_alloc_interrupts(struct mps_softc *sc)
250 if ((sc->disable_msix == 0) &&
251 ((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT))
252 error = mps_alloc_msix(sc, MPS_MSI_COUNT);
253 if ((error != 0) && (sc->disable_msi == 0) &&
254 ((msgs = pci_msi_count(dev)) >= MPS_MSI_COUNT))
255 error = mps_alloc_msi(sc, MPS_MSI_COUNT);
264 mps_pci_setup_interrupts(struct mps_softc *sc)
272 if (sc->msi_msgs == 0) {
273 sc->mps_flags |= MPS_FLAGS_INTX;
274 sc->mps_irq_rid[0] = 0;
275 sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ,
276 &sc->mps_irq_rid[0], RF_SHAREABLE | RF_ACTIVE);
277 if (sc->mps_irq[0] == NULL) {
278 mps_printf(sc, "Cannot allocate INTx interrupt\n");
281 error = bus_setup_intr(dev, sc->mps_irq[0],
282 INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr, sc,
283 &sc->mps_intrhand[0]);
285 mps_printf(sc, "Cannot setup INTx interrupt\n");
287 sc->mps_flags |= MPS_FLAGS_MSI;
288 for (i = 0; i < MPS_MSI_COUNT; i++) {
289 sc->mps_irq_rid[i] = i + 1;
290 sc->mps_irq[i] = bus_alloc_resource_any(dev,
291 SYS_RES_IRQ, &sc->mps_irq_rid[i], RF_ACTIVE);
292 if (sc->mps_irq[i] == NULL) {
294 "Cannot allocate MSI interrupt\n");
297 error = bus_setup_intr(dev, sc->mps_irq[i],
298 INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr_msi,
299 sc, &sc->mps_intrhand[i]);
302 "Cannot setup MSI interrupt %d\n", i);
312 mps_pci_detach(device_t dev)
314 struct mps_softc *sc;
317 sc = device_get_softc(dev);
319 if ((error = mps_free(sc)) != 0)
327 mps_pci_free(struct mps_softc *sc)
331 if (sc->mps_parent_dmat != NULL) {
332 bus_dma_tag_destroy(sc->mps_parent_dmat);
335 if (sc->mps_flags & MPS_FLAGS_MSI) {
336 for (i = 0; i < MPS_MSI_COUNT; i++) {
337 if (sc->mps_irq[i] != NULL) {
338 bus_teardown_intr(sc->mps_dev, sc->mps_irq[i],
339 sc->mps_intrhand[i]);
340 bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
341 sc->mps_irq_rid[i], sc->mps_irq[i]);
344 pci_release_msi(sc->mps_dev);
347 if (sc->mps_flags & MPS_FLAGS_INTX) {
348 bus_teardown_intr(sc->mps_dev, sc->mps_irq[0],
349 sc->mps_intrhand[0]);
350 bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
351 sc->mps_irq_rid[0], sc->mps_irq[0]);
354 if (sc->mps_regs_resource != NULL) {
355 bus_release_resource(sc->mps_dev, SYS_RES_MEMORY,
356 sc->mps_regs_rid, sc->mps_regs_resource);
363 mps_pci_suspend(device_t dev)
369 mps_pci_resume(device_t dev)
375 mps_alloc_msix(struct mps_softc *sc, int msgs)
379 error = pci_alloc_msix(sc->mps_dev, &msgs);
384 mps_alloc_msi(struct mps_softc *sc, int msgs)
388 error = pci_alloc_msi(sc->mps_dev, &msgs);
393 mps_pci_restore(struct mps_softc *sc)
395 struct pci_devinfo *dinfo;
397 mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
399 dinfo = device_get_ivars(sc->mps_dev);
401 mps_dprint(sc, MPS_FAULT, "%s: NULL dinfo\n", __func__);
405 pci_cfg_restore(sc->mps_dev, dinfo);