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); }