1 /* $OpenBSD: mpi_pci.c,v 1.27 2024/05/24 06:02:58 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
5 * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #include <sys/param.h>
21 #include <sys/systm.h>
22 #include <sys/device.h>
23 #include <sys/sensors.h>
24 #include <sys/rwlock.h>
25
26 #include <machine/bus.h>
27
28 #include <dev/pci/pcireg.h>
29 #include <dev/pci/pcivar.h>
30 #include <dev/pci/pcidevs.h>
31
32 #ifdef __sparc64__
33 #include <dev/ofw/openfirm.h>
34 #endif
35
36 #include <scsi/scsi_all.h>
37 #include <scsi/scsiconf.h>
38
39 #include <dev/ic/mpireg.h>
40 #include <dev/ic/mpivar.h>
41
42 int mpi_pci_match(struct device *, void *, void *);
43 void mpi_pci_attach(struct device *, struct device *, void *);
44 int mpi_pci_detach(struct device *, int);
45
46 struct mpi_pci_softc {
47 struct mpi_softc psc_mpi;
48
49 pci_chipset_tag_t psc_pc;
50 pcitag_t psc_tag;
51
52 void *psc_ih;
53 };
54
55 const struct cfattach mpi_pci_ca = {
56 sizeof(struct mpi_pci_softc), mpi_pci_match, mpi_pci_attach,
57 mpi_pci_detach
58 };
59
60 #define PREAD(s, r) pci_conf_read((s)->psc_pc, (s)->psc_tag, (r))
61 #define PWRITE(s, r, v) pci_conf_write((s)->psc_pc, (s)->psc_tag, (r), (v))
62
63 static const struct pci_matchid mpi_devices[] = {
64 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1030 },
65 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC909 },
66 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC909A },
67 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919 },
68 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919_1 },
69 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919X },
70 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929 },
71 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929_1 },
72 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929X },
73 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC939X },
74 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC949E },
75 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC949X },
76 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1064 },
77 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1064A },
78 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1064E_2 },
79 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1064E },
80 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1066 },
81 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1066E },
82 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1068 },
83 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1068_2 },
84 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1068E },
85 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1068E_2 }
86 };
87
88 int
mpi_pci_match(struct device * parent,void * match,void * aux)89 mpi_pci_match(struct device *parent, void *match, void *aux)
90 {
91 return (pci_matchbyid(aux, mpi_devices, nitems(mpi_devices)));
92 }
93
94 void
mpi_pci_attach(struct device * parent,struct device * self,void * aux)95 mpi_pci_attach(struct device *parent, struct device *self, void *aux)
96 {
97 struct mpi_pci_softc *psc = (void *)self;
98 struct mpi_softc *sc = &psc->psc_mpi;
99 struct pci_attach_args *pa = aux;
100 pcireg_t memtype;
101 int r;
102 pci_intr_handle_t ih;
103 const char *intrstr;
104 #ifdef __sparc64__
105 int node;
106 #endif
107
108 psc->psc_pc = pa->pa_pc;
109 psc->psc_tag = pa->pa_tag;
110 psc->psc_ih = NULL;
111 sc->sc_dmat = pa->pa_dmat;
112 sc->sc_ios = 0;
113 sc->sc_target = -1;
114
115 /* find the appropriate memory base */
116 for (r = PCI_MAPREG_START; r < PCI_MAPREG_END; r += sizeof(memtype)) {
117 memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag, r);
118 if ((memtype & PCI_MAPREG_TYPE_MASK) == PCI_MAPREG_TYPE_MEM)
119 break;
120 }
121 if (r >= PCI_MAPREG_END) {
122 printf(": unable to locate system interface registers\n");
123 return;
124 }
125
126 if (pci_mapreg_map(pa, r, memtype, 0, &sc->sc_iot, &sc->sc_ioh,
127 NULL, &sc->sc_ios, 0) != 0) {
128 printf(": unable to map system interface registers\n");
129 return;
130 }
131
132 /* disable the expansion rom */
133 PWRITE(psc, PCI_ROM_REG, PREAD(psc, PCI_ROM_REG) & ~PCI_ROM_ENABLE);
134
135 /* hook up the interrupt */
136 if (pci_intr_map_msi(pa, &ih) != 0 && pci_intr_map(pa, &ih) != 0) {
137 printf(": unable to map interrupt\n");
138 goto unmap;
139 }
140 intrstr = pci_intr_string(psc->psc_pc, ih);
141 psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO | IPL_MPSAFE,
142 mpi_intr, sc, sc->sc_dev.dv_xname);
143 if (psc->psc_ih == NULL) {
144 printf(": unable to map interrupt%s%s\n",
145 intrstr == NULL ? "" : " at ",
146 intrstr == NULL ? "" : intrstr);
147 goto unmap;
148 }
149 printf(": %s", intrstr);
150
151 if (pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG) ==
152 PCI_ID_CODE(PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1030)) {
153 sc->sc_flags |= MPI_F_SPI;
154 #ifdef __sparc64__
155 /*
156 * Walk up the Open Firmware device tree until we find a
157 * "scsi-initiator-id" property.
158 */
159 node = PCITAG_NODE(pa->pa_tag);
160 while (node) {
161 if (OF_getprop(node, "scsi-initiator-id",
162 &sc->sc_target, sizeof(sc->sc_target)) ==
163 sizeof(sc->sc_target))
164 break;
165 node = OF_parent(node);
166 }
167 #endif
168 }
169
170 if (mpi_attach(sc) != 0) {
171 /* error printed by mpi_attach */
172 goto deintr;
173 }
174
175 return;
176
177 deintr:
178 pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
179 psc->psc_ih = NULL;
180 unmap:
181 bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
182 sc->sc_ios = 0;
183 }
184
185 int
mpi_pci_detach(struct device * self,int flags)186 mpi_pci_detach(struct device *self, int flags)
187 {
188 struct mpi_pci_softc *psc = (struct mpi_pci_softc *)self;
189 struct mpi_softc *sc = &psc->psc_mpi;
190
191 mpi_detach(sc);
192
193 if (psc->psc_ih != NULL) {
194 pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
195 psc->psc_ih = NULL;
196 }
197 if (sc->sc_ios != 0) {
198 bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
199 sc->sc_ios = 0;
200 }
201
202 return (0);
203 }
204