static int
mfi_pci_probe(device_t dev)
{
struct mfi_ident *id;
if ((id = mfi_find_ident(dev)) != NULL) {
device_set_desc(dev, id->desc);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
mfi_pci_probe(device_t dev)
{
struct mfi_ident *id;
if ((id = mfi_find_ident(dev)) != NULL) {
device_set_desc(dev, id->desc);
/* give priority to mrsas if tunable set */
TUNABLE_INT_FETCH("hw.mfi.mrsas_enable", &mfi_mrsas_enable);
if ((id->flags & MFI_FLAGS_MRSAS) && mfi_mrsas_enable)
return (BUS_PROBE_LOW_PRIORITY);
else
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
mfi_pci_attach(device_t dev)
{
struct mfi_softc *sc;
struct mfi_ident *m;
int count, error;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->mfi_dev = dev;
m = mfi_find_ident(dev);
sc->mfi_flags = m->flags;
/* Ensure busmastering is enabled */
pci_enable_busmaster(dev);
/* Allocate PCI registers */
if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
(sc->mfi_flags & MFI_FLAGS_1078)) {
/* 1068/1078: Memory mapped BAR is at offset 0x10 */
sc->mfi_regs_rid = PCIR_BAR(0);
}
else if ((sc->mfi_flags & MFI_FLAGS_GEN2) ||
(sc->mfi_flags & MFI_FLAGS_SKINNY) ||
(sc->mfi_flags & MFI_FLAGS_TBOLT)) {
/* Gen2/Skinny: Memory mapped BAR is at offset 0x14 */
sc->mfi_regs_rid = PCIR_BAR(1);
}
if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) {
device_printf(dev, "Cannot allocate PCI registers\n");
return (ENXIO);
}
sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
error = ENOMEM;
/* Allocate parent DMA tag */
if (bus_dma_tag_create( bus_get_dma_tag(dev), /* PCI parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
BUS_SPACE_UNRESTRICTED, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->mfi_parent_dmat)) {
device_printf(dev, "Cannot allocate parent DMA tag\n");
goto out;
}
/* Allocate IRQ resource. */
sc->mfi_irq_rid = 0;
count = 1;
if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
device_printf(sc->mfi_dev, "Using MSI\n");
sc->mfi_irq_rid = 1;
}
if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
&sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
error = EINVAL;
goto out;
}
error = mfi_attach(sc);
out:
if (error) {
mfi_free(sc);
mfi_pci_free(sc);
}
return (error);
}
static int
mfi_pci_attach(device_t dev)
{
struct mfi_softc *sc;
struct mfi_ident *m;
uint32_t command;
int count, error;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->mfi_dev = dev;
m = mfi_find_ident(dev);
sc->mfi_flags = m->flags;
/* Verify that the adapter can be set up in PCI space */
command = pci_read_config(dev, PCIR_COMMAND, 2);
command |= PCIM_CMD_BUSMASTEREN;
pci_write_config(dev, PCIR_COMMAND, command, 2);
command = pci_read_config(dev, PCIR_COMMAND, 2);
if ((command & PCIM_CMD_BUSMASTEREN) == 0) {
device_printf(dev, "Can't enable PCI busmaster\n");
return (ENXIO);
}
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "PCI memory window not available\n");
return (ENXIO);
}
/* Allocate PCI registers */
if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
(sc->mfi_flags & MFI_FLAGS_1078)) {
/* 1068/1078: Memory mapped BAR is at offset 0x10 */
sc->mfi_regs_rid = PCIR_BAR(0);
} else if (sc->mfi_flags & MFI_FLAGS_GEN2) {
/* GEN2: Memory mapped BAR is at offset 0x14 */
sc->mfi_regs_rid = PCIR_BAR(1);
}
if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
SYS_RES_MEMORY, &sc->mfi_regs_rid, RF_ACTIVE)) == NULL) {
device_printf(dev, "Cannot allocate PCI registers\n");
return (ENXIO);
}
sc->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
error = ENOMEM;
/* Allocate parent DMA tag */
if (bus_dma_tag_create( NULL, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
BUS_SPACE_UNRESTRICTED, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->mfi_parent_dmat)) {
device_printf(dev, "Cannot allocate parent DMA tag\n");
goto out;
}
/* Allocate IRQ resource. */
sc->mfi_irq_rid = 0;
count = 1;
if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
device_printf(sc->mfi_dev, "Using MSI\n");
sc->mfi_irq_rid = 1;
}
if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
&sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
error = EINVAL;
goto out;
}
error = mfi_attach(sc);
out:
if (error) {
mfi_free(sc);
mfi_pci_free(sc);
}
return (error);
}