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mfi_pci.c revision 1.12.10.1
      1 /* $NetBSD: mfi_pci.c,v 1.12.10.1 2012/04/17 00:07:51 yamt Exp $ */
      2 /* $OpenBSD: mfi_pci.c,v 1.11 2006/08/06 04:40:08 brad Exp $ */
      3 /*
      4  * Copyright (c) 2006 Marco Peereboom <marco (at) peereboom.us>
      5  *
      6  * Permission to use, copy, modify, and distribute this software for any
      7  * purpose with or without fee is hereby granted, provided that the above
      8  * copyright notice and this permission notice appear in all copies.
      9  *
     10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  */
     18 
     19 #include <sys/cdefs.h>
     20 __KERNEL_RCSID(0, "$NetBSD: mfi_pci.c,v 1.12.10.1 2012/04/17 00:07:51 yamt Exp $");
     21 
     22 #include <sys/param.h>
     23 #include <sys/systm.h>
     24 #include <sys/kernel.h>
     25 #include <sys/malloc.h>
     26 #include <sys/device.h>
     27 
     28 #include <dev/pci/pcidevs.h>
     29 #include <dev/pci/pcivar.h>
     30 
     31 #include <sys/bus.h>
     32 
     33 #include <dev/scsipi/scsipi_all.h>
     34 #include <dev/scsipi/scsipi_disk.h>
     35 #include <dev/scsipi/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 
     44 struct mfi_pci_softc {
     45 	struct mfi_softc	psc_sc;
     46 	pci_chipset_tag_t	psc_pc;
     47 };
     48 
     49 const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *);
     50 int	mfi_pci_match(device_t, cfdata_t, void *);
     51 void	mfi_pci_attach(device_t, device_t, void *);
     52 int	mfi_pci_detach(device_t, int);
     53 
     54 CFATTACH_DECL3_NEW(mfi_pci, sizeof(struct mfi_pci_softc),
     55     mfi_pci_match, mfi_pci_attach, mfi_pci_detach, NULL, mfi_rescan,
     56     mfi_childdetached, DVF_DETACH_SHUTDOWN);
     57 
     58 struct mfi_pci_subtype {
     59 	pcireg_t 	st_vendor;
     60 	pcireg_t 	st_product;
     61 	const char 	*st_string;
     62 };
     63 
     64 static const struct mfi_pci_subtype mfi_1078_subtypes[] = {
     65 	{ PCI_VENDOR_SYMBIOS, 	0x1006, 	"SAS 8888ELP" },
     66 	{ PCI_VENDOR_SYMBIOS, 	0x100a, 	"SAS 8708ELP" },
     67 	{ PCI_VENDOR_SYMBIOS, 	0x100f, 	"SAS 8708E" },
     68 	{ PCI_VENDOR_SYMBIOS, 	0x1012, 	"SAS 8704ELP" },
     69 	{ PCI_VENDOR_SYMBIOS, 	0x1013, 	"SAS 8708EM2" },
     70 	{ PCI_VENDOR_SYMBIOS, 	0x1016, 	"SAS 8880EM2" },
     71 	{ PCI_VENDOR_DELL, 	0x1f0a, 	"Dell PERC 6/e" },
     72 	{ PCI_VENDOR_DELL, 	0x1f0b, 	"Dell PERC 6/i" },
     73 	{ PCI_VENDOR_DELL, 	0x1f0c, 	"Dell PERC 6/i integrated" },
     74 	{ PCI_VENDOR_DELL, 	0x1f0d, 	"Dell CERC 6/i" },
     75 	{ PCI_VENDOR_DELL, 	0x1f11, 	"Dell CERC 6/i integrated" },
     76 	{ 0, 			0, 		NULL }
     77 };
     78 
     79 static const struct mfi_pci_subtype mfi_perc5_subtypes[] = {
     80 	{ PCI_VENDOR_DELL,	0x1f01, 	"Dell PERC 5/e" },
     81 	{ PCI_VENDOR_DELL, 	0x1f02, 	"Dell PERC 5/i" },
     82 	{ PCI_VENDOR_DELL, 	0x1f03, 	"Dell PERC 5/i integrated" },
     83 	{ 0, 			0, 		NULL }
     84 };
     85 
     86 static const struct mfi_pci_subtype mfi_gen2_subtypes[] = {
     87 	{ PCI_VENDOR_SYMBIOS,	0x9261,		"SAS 9260-8i" },
     88 	{ PCI_VENDOR_IBM,	0x03c7,		"IBM ServeRAID M5014 SAS/SATA" },
     89 	{ 0x0,			0,		"" }
     90 };
     91 
     92 static const struct mfi_pci_subtype mfi_skinny_subtypes[] = {
     93 	{ PCI_VENDOR_IBM,	0x03b1,		"IBM ServeRAID M1015 SAS/SATA" },
     94 	{ 0x0,			0,		"" }
     95 };
     96 
     97 static const
     98 struct mfi_pci_device {
     99 	pcireg_t			mpd_vendor;
    100 	pcireg_t			mpd_product;
    101 	enum mfi_iop			mpd_iop;
    102 	const struct mfi_pci_subtype 	*mpd_subtype;
    103 } mfi_pci_devices[] = {
    104 	{ PCI_VENDOR_SYMBIOS, 	PCI_PRODUCT_SYMBIOS_MEGARAID_SAS,
    105 	  MFI_IOP_XSCALE, 	NULL },
    106 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR,
    107 	  MFI_IOP_XSCALE,	NULL },
    108 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS1078,
    109 	  MFI_IOP_PPC,		mfi_1078_subtypes },
    110 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS1078DE,
    111 	  MFI_IOP_PPC,		mfi_1078_subtypes },
    112 	{ PCI_VENDOR_DELL,	PCI_PRODUCT_DELL_PERC_5,
    113 	  MFI_IOP_XSCALE,	mfi_perc5_subtypes },
    114 	{ PCI_VENDOR_DELL,	PCI_PRODUCT_DELL_PERC_6,
    115 	  MFI_IOP_PPC, 		mfi_1078_subtypes },
    116 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2108_1,
    117 	  MFI_IOP_GEN2,		mfi_gen2_subtypes },
    118 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2108_2,
    119 	  MFI_IOP_GEN2,		mfi_gen2_subtypes },
    120 	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_SAS2008_1,
    121 	  MFI_IOP_SKINNY,	mfi_skinny_subtypes },
    122 };
    123 
    124 const struct mfi_pci_device *
    125 mfi_pci_find_device(struct pci_attach_args *pa)
    126 {
    127 	const struct mfi_pci_device *mpd;
    128 	int i;
    129 
    130 	for (i = 0; i < __arraycount(mfi_pci_devices); i++) {
    131 		mpd = &mfi_pci_devices[i];
    132 
    133 		if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) &&
    134 		    mpd->mpd_product == PCI_PRODUCT(pa->pa_id))
    135 			return mpd;
    136 	}
    137 
    138 	return NULL;
    139 }
    140 
    141 int
    142 mfi_pci_match(device_t parent, cfdata_t match, void *aux)
    143 {
    144 	return (mfi_pci_find_device(aux) != NULL) ? 1 : 0;
    145 }
    146 
    147 int
    148 mfi_pci_detach(device_t self, int flags)
    149 {
    150 	struct mfi_pci_softc	*psc = device_private(self);
    151 	struct mfi_softc	*sc = &psc->psc_sc;
    152 	int error;
    153 
    154 	if ((error = mfi_detach(sc, flags)) != 0)
    155 		return error;
    156 
    157 	/* xxx */
    158 	pci_intr_disestablish(psc->psc_pc, sc->sc_ih);
    159 	bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_size);
    160 	return 0;
    161 }
    162 
    163 void
    164 mfi_pci_attach(device_t parent, device_t self, void *aux)
    165 {
    166 	struct mfi_pci_softc	*psc = device_private(self);
    167 	struct mfi_softc	*sc = &psc->psc_sc;
    168 	struct pci_attach_args	*pa = aux;
    169 	const struct mfi_pci_device *mpd;
    170 	const struct mfi_pci_subtype *st;
    171 	const char		*intrstr;
    172 	pci_intr_handle_t	ih;
    173 	pcireg_t		csr;
    174 	int			regbar;
    175 	const char 		*subtype = NULL;
    176 	uint32_t		subsysid;
    177 
    178 	sc->sc_dev = self;
    179 	psc->psc_pc = pa->pa_pc;
    180 
    181 	mpd = mfi_pci_find_device(pa);
    182 	if (mpd == NULL) {
    183 		printf(": can't find matching pci device\n");
    184 		return;
    185 	}
    186 
    187 	sc->sc_flags = mpd->mpd_iop;
    188 
    189 	if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY)
    190 		regbar = MFI_BAR_GEN2;
    191 	else
    192 		regbar = MFI_BAR;
    193 
    194 	csr = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar);
    195 	csr |= PCI_MAPREG_MEM_TYPE_32BIT;
    196 	if (pci_mapreg_map(pa, regbar, csr, 0,
    197 	    &sc->sc_iot, &sc->sc_ioh, NULL, &sc->sc_size)) {
    198 		aprint_error(": can't map controller pci space\n");
    199 		return;
    200 	}
    201 
    202 	sc->sc_dmat = pa->pa_dmat;
    203 
    204 	if (pci_intr_map(pa, &ih)) {
    205 		aprint_error(": can't map interrupt\n");
    206 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_size);
    207 		return;
    208 	}
    209 	intrstr = pci_intr_string(pa->pa_pc, ih);
    210 	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mfi_intr, sc);
    211 	if (!sc->sc_ih) {
    212 		aprint_error(": can't establish interrupt");
    213 		if (intrstr)
    214 			aprint_error(" at %s", intrstr);
    215 		aprint_error("\n");
    216 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_size);
    217 		return;
    218 	}
    219 
    220 	subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
    221 	if (mpd->mpd_subtype != NULL) {
    222 		st = mpd->mpd_subtype;
    223 		while (st->st_vendor != 0) {
    224 			if (PCI_VENDOR(subsysid) == st->st_vendor &&
    225 			    PCI_PRODUCT(subsysid) == st->st_product) {
    226 				subtype = st->st_string;
    227 				break;
    228 			}
    229 			st++;
    230 		}
    231 		if (subtype)
    232 			aprint_normal(": %s\n", subtype);
    233 	}
    234 
    235 	aprint_normal("%s: interrupting at %s\n", DEVNAME(sc), intrstr);
    236 
    237 	if (mfi_attach(sc, mpd->mpd_iop)) {
    238 		aprint_error("%s: can't attach", DEVNAME(sc));
    239 		pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
    240 		sc->sc_ih = NULL;
    241 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_size);
    242 	}
    243 }
    244