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
40int	mfi_pci_match(struct device *, void *, void *);
41void	mfi_pci_attach(struct device *, struct device *, void *);
42
43const struct cfattach mfi_pci_ca = {
44	sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach
45};
46
47static const
48struct	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
71const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *);
72
73const struct mfi_pci_device *
74mfi_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
90int
91mfi_pci_match(struct device *parent, void *match, void *aux)
92{
93	return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0);
94}
95
96void
97mfi_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;
146unintr:
147	pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
148	sc->sc_ih = NULL;
149unmap:
150	bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
151}
152