1 /* $OpenBSD: mfi_pci.c,v 1.32 2024/05/24 06:02:58 jsg Exp $ */
2 /*
3 * Copyright (c) 2006 Marco Peereboom <marco@peereboom.us>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/param.h>
19 #include <sys/systm.h>
20 #include <sys/device.h>
21 #include <sys/rwlock.h>
22 #include <sys/sensors.h>
23
24 #include <dev/pci/pcidevs.h>
25 #include <dev/pci/pcivar.h>
26
27 #include <machine/bus.h>
28
29 #include <scsi/scsi_all.h>
30 #include <scsi/scsi_disk.h>
31 #include <scsi/scsiconf.h>
32
33 #include <dev/ic/mfireg.h>
34 #include <dev/ic/mfivar.h>
35
36 #define MFI_BAR 0x10
37 #define MFI_BAR_GEN2 0x14
38 #define MFI_PCI_MEMSIZE 0x2000 /* 8k */
39
40 int mfi_pci_match(struct device *, void *, void *);
41 void mfi_pci_attach(struct device *, struct device *, void *);
42
43 const struct cfattach mfi_pci_ca = {
44 sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach
45 };
46
47 static const
48 struct mfi_pci_device {
49 pcireg_t mpd_vendor;
50 pcireg_t mpd_product;
51 enum mfi_iop mpd_iop;
52 } mfi_pci_devices[] = {
53 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_SAS,
54 MFI_IOP_XSCALE },
55 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR,
56 MFI_IOP_XSCALE },
57 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078,
58 MFI_IOP_PPC },
59 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078DE,
60 MFI_IOP_PPC },
61 { PCI_VENDOR_DELL, PCI_PRODUCT_DELL_PERC5,
62 MFI_IOP_XSCALE },
63 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_1,
64 MFI_IOP_GEN2 },
65 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_2,
66 MFI_IOP_GEN2 },
67 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2008_1,
68 MFI_IOP_SKINNY }
69 };
70
71 const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *);
72
73 const struct mfi_pci_device *
mfi_pci_find_device(struct pci_attach_args * pa)74 mfi_pci_find_device(struct pci_attach_args *pa)
75 {
76 const struct mfi_pci_device *mpd;
77 int i;
78
79 for (i = 0; i < nitems(mfi_pci_devices); i++) {
80 mpd = &mfi_pci_devices[i];
81
82 if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) &&
83 mpd->mpd_product == PCI_PRODUCT(pa->pa_id))
84 return (mpd);
85 }
86
87 return (NULL);
88 }
89
90 int
mfi_pci_match(struct device * parent,void * match,void * aux)91 mfi_pci_match(struct device *parent, void *match, void *aux)
92 {
93 return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0);
94 }
95
96 void
mfi_pci_attach(struct device * parent,struct device * self,void * aux)97 mfi_pci_attach(struct device *parent, struct device *self, void *aux)
98 {
99 struct mfi_softc *sc = (struct mfi_softc *)self;
100 struct pci_attach_args *pa = aux;
101 const struct mfi_pci_device *mpd;
102 pci_intr_handle_t ih;
103 bus_size_t size;
104 pcireg_t reg;
105 int regbar;
106
107 mpd = mfi_pci_find_device(pa);
108 if (mpd == NULL) {
109 printf(": can't find matching pci device\n");
110 return;
111 }
112
113 if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY)
114 regbar = MFI_BAR_GEN2;
115 else
116 regbar = MFI_BAR;
117
118 reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar);
119 if (pci_mapreg_map(pa, regbar, reg, 0,
120 &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) {
121 printf(": can't map controller pci space\n");
122 return;
123 }
124
125 sc->sc_dmat = pa->pa_dmat;
126
127 if (pci_intr_map(pa, &ih) != 0) {
128 printf(": can't map interrupt\n");
129 goto unmap;
130 }
131 printf(": %s\n", pci_intr_string(pa->pa_pc, ih));
132
133 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO | IPL_MPSAFE,
134 mfi_intr, sc, sc->sc_dev.dv_xname);
135 if (!sc->sc_ih) {
136 printf("%s: can't establish interrupt\n", DEVNAME(sc));
137 goto unmap;
138 }
139
140 if (mfi_attach(sc, mpd->mpd_iop)) {
141 printf("%s: can't attach\n", DEVNAME(sc));
142 goto unintr;
143 }
144
145 return;
146 unintr:
147 pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
148 sc->sc_ih = NULL;
149 unmap:
150 bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
151 }
152