mfi_pci.c revision 1.30 
1/* $OpenBSD: mfi_pci.c,v 1.30 2019/12/31 00:00:09 deraadt 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 "bio.h"
19
20#include <sys/param.h>
21#include <sys/systm.h>
22#include <sys/kernel.h>
23#include <sys/malloc.h>
24#include <sys/device.h>
25#include <sys/rwlock.h>
26#include <sys/sensors.h>
27
28#include <dev/pci/pcidevs.h>
29#include <dev/pci/pcivar.h>
30
31#include <machine/bus.h>
32
33#include <scsi/scsi_all.h>
34#include <scsi/scsi_disk.h>
35#include <scsi/scsiconf.h>
36
37#include <dev/ic/mfireg.h>
38#include <dev/ic/mfivar.h>
39
40#define	MFI_BAR		0x10
41#define	MFI_BAR_GEN2	0x14
42#define	MFI_PCI_MEMSIZE	0x2000 /* 8k */
43
44int	mfi_pci_match(struct device *, void *, void *);
45void	mfi_pci_attach(struct device *, struct device *, void *);
46
47struct cfattach mfi_pci_ca = {
48	sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach
49};
50
51static const
52struct	mfi_pci_device {
53	pcireg_t		mpd_vendor;
54	pcireg_t		mpd_product;
55	enum mfi_iop		mpd_iop;
56} mfi_pci_devices[] = {
57	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_MEGARAID_SAS,
58	  MFI_IOP_XSCALE },
59	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR,
60	  MFI_IOP_XSCALE },
61	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS1078,
62	  MFI_IOP_PPC },
63	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS1078DE,
64	  MFI_IOP_PPC },
65	{ PCI_VENDOR_DELL,	PCI_PRODUCT_DELL_PERC5,
66	  MFI_IOP_XSCALE },
67	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2108_1,
68	  MFI_IOP_GEN2 },
69	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2108_2,
70	  MFI_IOP_GEN2 },
71	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2008_1,
72	  MFI_IOP_SKINNY }
73};
74
75const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *);
76
77const struct mfi_pci_device *
78mfi_pci_find_device(struct pci_attach_args *pa)
79{
80	const struct mfi_pci_device *mpd;
81	int i;
82
83	for (i = 0; i < nitems(mfi_pci_devices); i++) {
84		mpd = &mfi_pci_devices[i];
85
86		if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) &&
87		    mpd->mpd_product == PCI_PRODUCT(pa->pa_id))
88			return (mpd);
89	}
90
91	return (NULL);
92}
93
94int
95mfi_pci_match(struct device *parent, void *match, void *aux)
96{
97	return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0);
98}
99
100void
101mfi_pci_attach(struct device *parent, struct device *self, void *aux)
102{
103	struct mfi_softc	*sc = (struct mfi_softc *)self;
104	struct pci_attach_args	*pa = aux;
105	const struct mfi_pci_device *mpd;
106	pci_intr_handle_t	ih;
107	bus_size_t		size;
108	pcireg_t		reg;
109	int			regbar;
110
111	mpd = mfi_pci_find_device(pa);
112	if (mpd == NULL) {
113		printf(": can't find matching pci device\n");
114		return;
115	}
116
117	if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY)
118		regbar = MFI_BAR_GEN2;
119	else
120		regbar = MFI_BAR;
121
122	reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar);
123	if (pci_mapreg_map(pa, regbar, reg, 0,
124	    &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) {
125		printf(": can't map controller pci space\n");
126		return;
127	}
128
129	sc->sc_dmat = pa->pa_dmat;
130
131	if (pci_intr_map(pa, &ih) != 0) {
132		printf(": can't map interrupt\n");
133		goto unmap;
134	}
135	printf(": %s\n", pci_intr_string(pa->pa_pc, ih));
136
137	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO | IPL_MPSAFE,
138	    mfi_intr, sc, sc->sc_dev.dv_xname);
139	if (!sc->sc_ih) {
140		printf("%s: can't establish interrupt\n", DEVNAME(sc));
141		goto unmap;
142	}
143
144	if (mfi_attach(sc, mpd->mpd_iop)) {
145		printf("%s: can't attach\n", DEVNAME(sc));
146		goto unintr;
147	}
148
149	return;
150unintr:
151	pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
152	sc->sc_ih = NULL;
153unmap:
154	bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
155}
156