2 * Copyright (c) 2009 Yahoo! Inc.
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26 * $FreeBSD: head/sys/dev/mpr/mpr_pci.c 323629 2017-09-15 20:58:52Z scottl $
29 /* PCI/PCI-X/PCIe bus interface for the Avago Tech (LSI) MPT3 controllers */
31 /* TODO Move headers to mprvar */
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
39 #include <sys/malloc.h>
40 #include <sys/sysctl.h>
42 #include <sys/eventhandler.h>
46 #include <bus/pci/pcireg.h>
47 #include <bus/pci/pcivar.h>
48 #include <bus/pci/pci_private.h>
50 #include <dev/raid/mpr/mpi/mpi2_type.h>
51 #include <dev/raid/mpr/mpi/mpi2.h>
52 #include <dev/raid/mpr/mpi/mpi2_ioc.h>
53 #include <dev/raid/mpr/mpi/mpi2_cnfg.h>
54 #include <dev/raid/mpr/mpi/mpi2_tool.h>
55 #include <dev/raid/mpr/mpi/mpi2_pci.h>
57 #include <sys/queue.h>
58 #include <sys/kthread.h>
59 #include <dev/raid/mpr/mpr_ioctl.h>
60 #include <dev/raid/mpr/mprvar.h>
62 static int mpr_pci_probe(device_t);
63 static int mpr_pci_attach(device_t);
64 static int mpr_pci_detach(device_t);
65 static int mpr_pci_suspend(device_t);
66 static int mpr_pci_resume(device_t);
67 static void mpr_pci_free(struct mpr_softc *);
68 static int mpr_pci_alloc_interrupts(struct mpr_softc *sc);
70 static device_method_t mpr_methods[] = {
71 DEVMETHOD(device_probe, mpr_pci_probe),
72 DEVMETHOD(device_attach, mpr_pci_attach),
73 DEVMETHOD(device_detach, mpr_pci_detach),
74 DEVMETHOD(device_suspend, mpr_pci_suspend),
75 DEVMETHOD(device_resume, mpr_pci_resume),
76 DEVMETHOD(bus_print_child, bus_generic_print_child),
77 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
81 static driver_t mpr_pci_driver = {
84 sizeof(struct mpr_softc)
87 static devclass_t mpr_devclass;
88 DRIVER_MODULE(mpr, pci, mpr_pci_driver, mpr_devclass, 0, 0);
89 MODULE_DEPEND(mpr, cam, 1, 1, 1);
98 } mpr_identifiers[] = {
99 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
100 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3004" },
101 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
102 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3008" },
103 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
104 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_1" },
105 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
106 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_2" },
107 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
108 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_5" },
109 { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
110 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3108_6" },
111 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3216,
112 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3216" },
113 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3224,
114 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3224" },
115 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_1,
116 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3316_1" },
117 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_2,
118 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3316_2" },
119 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_1,
120 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3324_1" },
121 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_2,
122 0xffff, 0xffff, 0, "Avago Technologies (LSI) SAS3324_2" },
123 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3408,
124 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
125 "Avago Technologies (LSI) SAS3408" },
126 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3416,
127 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
128 "Avago Technologies (LSI) SAS3416" },
129 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508,
130 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
131 "Avago Technologies (LSI) SAS3508" },
132 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508_1,
133 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
134 "Avago Technologies (LSI) SAS3508_1" },
135 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516,
136 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
137 "Avago Technologies (LSI) SAS3516" },
138 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516_1,
139 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
140 "Avago Technologies (LSI) SAS3516_1" },
141 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3616,
142 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
143 "Avago Technologies (LSI) SAS3616" },
144 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3708,
145 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
146 "Avago Technologies (LSI) SAS3708" },
147 { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3716,
148 0xffff, 0xffff, MPR_FLAGS_GEN35_IOC,
149 "Avago Technologies (LSI) SAS3716" },
150 { 0, 0, 0, 0, 0, NULL }
153 static struct mpr_ident *
154 mpr_find_ident(device_t dev)
158 for (m = mpr_identifiers; m->vendor != 0; m++) {
159 if (m->vendor != pci_get_vendor(dev))
161 if (m->device != pci_get_device(dev))
163 if ((m->subvendor != 0xffff) &&
164 (m->subvendor != pci_get_subvendor(dev)))
166 if ((m->subdevice != 0xffff) &&
167 (m->subdevice != pci_get_subdevice(dev)))
176 mpr_pci_probe(device_t dev)
178 struct mpr_ident *id;
180 if ((id = mpr_find_ident(dev)) != NULL) {
181 device_set_desc(dev, id->desc);
182 return (BUS_PROBE_DEFAULT);
188 mpr_pci_attach(device_t dev)
190 struct mpr_softc *sc;
194 sc = device_get_softc(dev);
195 bzero(sc, sizeof(*sc));
197 m = mpr_find_ident(dev);
198 sc->mpr_flags = m->flags;
200 mpr_get_tunables(sc);
202 /* Twiddle basic PCI config bits for a sanity check */
203 pci_enable_busmaster(dev);
205 for (i = 0; i < PCI_MAXMAPS_0; i++) {
206 sc->mpr_regs_rid = PCIR_BAR(i);
208 if ((sc->mpr_regs_resource = bus_alloc_resource_any(dev,
209 SYS_RES_MEMORY, &sc->mpr_regs_rid, RF_ACTIVE)) != NULL)
213 if (sc->mpr_regs_resource == NULL) {
214 mpr_printf(sc, "Cannot allocate PCI registers\n");
218 sc->mpr_btag = rman_get_bustag(sc->mpr_regs_resource);
219 sc->mpr_bhandle = rman_get_bushandle(sc->mpr_regs_resource);
221 /* Allocate the parent DMA tag */
222 if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */
223 1, 0, /* algnmnt, boundary */
224 BUS_SPACE_MAXADDR, /* lowaddr */
225 BUS_SPACE_MAXADDR, /* highaddr */
226 NULL, NULL, /* filter, filterarg */
227 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
228 BUS_SPACE_UNRESTRICTED, /* nsegments */
229 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
231 &sc->mpr_parent_dmat)) {
232 mpr_printf(sc, "Cannot allocate parent DMA tag\n");
237 if (((error = mpr_pci_alloc_interrupts(sc)) != 0) ||
238 ((error = mpr_attach(sc)) != 0))
245 * Allocate, but don't assign interrupts early. Doing it before requesting
246 * the IOCFacts message informs the firmware that we want to do MSI-X
247 * multiqueue. We might not use all of the available messages, but there's
248 * no reason to re-alloc if we don't.
250 * XXX swildner: MSI-X support missing
253 mpr_pci_alloc_interrupts(struct mpr_softc *sc)
260 sc->irq_type = pci_alloc_1intr(dev, sc->msi_enable, &sc->irq_rid,
262 if (sc->irq_type == PCI_INTR_TYPE_MSI)
263 sc->mpr_flags |= MPR_FLAGS_MSI;
265 sc->mpr_flags |= MPR_FLAGS_INTX;
271 mpr_pci_setup_interrupts(struct mpr_softc *sc)
281 if (sc->mpr_flags & MPR_FLAGS_INTX) {
283 } else if (sc->mpr_flags & MPR_FLAGS_MSI) {
284 ihandler = mpr_intr_msi;
286 mpr_dprint(sc, MPR_ERROR|MPR_INIT,
287 "Unable to set up interrupts\n");
291 for (i = 0; i < sc->msi_msgs; i++) {
295 q->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
296 &q->irq_rid, sc->irq_flags);
297 if (q->irq == NULL) {
298 mpr_dprint(sc, MPR_ERROR|MPR_INIT,
299 "Cannot allocate interrupt RID %d\n", rid);
303 error = bus_setup_intr(dev, q->irq, INTR_MPSAFE, ihandler,
304 sc, &q->intrhand, NULL);
306 mpr_dprint(sc, MPR_ERROR|MPR_INIT,
307 "Cannot setup interrupt RID %d\n", rid);
313 mpr_dprint(sc, MPR_INIT, "Set up %d interrupts\n", sc->msi_msgs);
318 mpr_pci_detach(device_t dev)
320 struct mpr_softc *sc;
323 sc = device_get_softc(dev);
325 if ((error = mpr_free(sc)) != 0)
333 mpr_pci_free_interrupts(struct mpr_softc *sc)
338 if (sc->queues == NULL)
341 for (i = 0; i < sc->msi_msgs; i++) {
343 if (q->irq != NULL) {
344 bus_teardown_intr(sc->mpr_dev, q->irq,
346 bus_release_resource(sc->mpr_dev, SYS_RES_IRQ,
353 mpr_pci_free(struct mpr_softc *sc)
356 if (sc->mpr_parent_dmat != NULL) {
357 bus_dma_tag_destroy(sc->mpr_parent_dmat);
360 mpr_pci_free_interrupts(sc);
362 if (sc->mpr_flags & MPR_FLAGS_MSI)
363 pci_release_msi(sc->mpr_dev);
365 if (sc->mpr_regs_resource != NULL) {
366 bus_release_resource(sc->mpr_dev, SYS_RES_MEMORY,
367 sc->mpr_regs_rid, sc->mpr_regs_resource);
374 mpr_pci_suspend(device_t dev)
380 mpr_pci_resume(device_t dev)
386 mpr_pci_restore(struct mpr_softc *sc)
388 struct pci_devinfo *dinfo;
390 mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
392 dinfo = device_get_ivars(sc->mpr_dev);
394 mpr_dprint(sc, MPR_FAULT, "%s: NULL dinfo\n", __func__);
398 pci_cfg_restore(sc->mpr_dev, dinfo);