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/* $OpenBSD: mfi_pci.c,v 1.15 2008/02/11 01:07:02 dlg Exp $ */
/*
* Copyright (c) 2006 Marco Peereboom <marco@peereboom.us>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/rwlock.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>
#include <machine/bus.h>
#include <scsi/scsi_all.h>
#include <scsi/scsi_disk.h>
#include <scsi/scsiconf.h>
#include <dev/ic/mfireg.h>
#include <dev/ic/mfivar.h>
#define MFI_BAR 0x10
#define MFI_PCI_MEMSIZE 0x2000 /* 8k */
int mfi_pci_match(struct device *, void *, void *);
void mfi_pci_attach(struct device *, struct device *, void *);
struct cfattach mfi_pci_ca = {
sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach
};
static const
struct mfi_pci_device {
pcireg_t mpd_vendor;
pcireg_t mpd_product;
enum mfi_iop mpd_iop;
} mfi_pci_devices[] = {
{ PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_SAS,
MFI_IOP_XSCALE },
{ PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR,
MFI_IOP_XSCALE },
{ PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078,
MFI_IOP_PPC },
{ PCI_VENDOR_DELL, PCI_PRODUCT_DELL_PERC5,
MFI_IOP_XSCALE },
{ PCI_VENDOR_SYMBIOS, PCI_PRODUCT_DELL_PERC6,
MFI_IOP_PPC }
};
#define sizeofa(_a) (sizeof(_a) / sizeof((_a)[0]))
const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *);
const struct mfi_pci_device *
mfi_pci_find_device(struct pci_attach_args *pa)
{
const struct mfi_pci_device *mpd;
int i;
for (i = 0; i < sizeofa(mfi_pci_devices); i++) {
mpd = &mfi_pci_devices[i];
if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) &&
mpd->mpd_product == PCI_PRODUCT(pa->pa_id))
return (mpd);
}
return (NULL);
}
int
mfi_pci_match(struct device *parent, void *match, void *aux)
{
return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0);
}
void
mfi_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct mfi_softc *sc = (struct mfi_softc *)self;
struct pci_attach_args *pa = aux;
const struct mfi_pci_device *mpd;
const char *intrstr;
pci_intr_handle_t ih;
bus_size_t size;
pcireg_t csr;
mpd = mfi_pci_find_device(pa);
csr = pci_mapreg_type(pa->pa_pc, pa->pa_tag, MFI_BAR);
if (pci_mapreg_map(pa, MFI_BAR, csr, 0,
&sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) {
printf(": can't map controller pci space\n");
return;
}
sc->sc_dmat = pa->pa_dmat;
if (pci_intr_map(pa, &ih)) {
printf(": can't map interrupt\n");
bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih);
sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mfi_intr, sc,
sc->sc_dev.dv_xname);
if (!sc->sc_ih) {
printf(": can't establish interrupt");
if (intrstr)
printf(" at %s", intrstr);
printf("\n");
bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
return;
}
printf(": %s\n", intrstr);
if (mfi_attach(sc, mpd->mpd_iop)) {
printf("%s: can't attach\n", DEVNAME(sc));
pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
sc->sc_ih = NULL;
bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
}
}
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