diff options
Diffstat (limited to 'sys/dev/aacraid/aacraid_pci.c')
-rw-r--r-- | sys/dev/aacraid/aacraid_pci.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/sys/dev/aacraid/aacraid_pci.c b/sys/dev/aacraid/aacraid_pci.c new file mode 100644 index 0000000..6204fdf --- /dev/null +++ b/sys/dev/aacraid/aacraid_pci.c @@ -0,0 +1,265 @@ +/*- + * Copyright (c) 2000 Michael Smith + * Copyright (c) 2001 Scott Long + * Copyright (c) 2000 BSDi + * Copyright (c) 2001-2010 Adaptec, Inc. + * Copyright (c) 2010-2012 PMC-Sierra, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * PCI bus interface and resource allocation. + */ + +#include "opt_aacraid.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> + +#include <sys/bio.h> +#include <sys/bus.h> +#include <sys/conf.h> +#include <sys/disk.h> + +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/rman.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> + +#include <dev/aacraid/aacraid_reg.h> +#include <sys/aac_ioctl.h> +#include <dev/aacraid/aacraid_debug.h> +#include <dev/aacraid/aacraid_var.h> + +static int aacraid_pci_probe(device_t dev); +static int aacraid_pci_attach(device_t dev); + +static device_method_t aacraid_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, aacraid_pci_probe), + DEVMETHOD(device_attach, aacraid_pci_attach), + DEVMETHOD(device_detach, aacraid_detach), + DEVMETHOD(device_suspend, aacraid_suspend), + DEVMETHOD(device_resume, aacraid_resume), + + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + { 0, 0 } +}; + +static driver_t aacraid_pci_driver = { + "aacraid", + aacraid_methods, + sizeof(struct aac_softc) +}; + +static devclass_t aacraid_devclass; + +DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, aacraid_devclass, 0, 0); +MODULE_DEPEND(aacraid, pci, 1, 1, 1); + +struct aac_ident +{ + u_int16_t vendor; + u_int16_t device; + u_int16_t subvendor; + u_int16_t subdevice; + int hwif; + int quirks; + char *desc; +} aacraid_family_identifiers[] = { + {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0, + "Adaptec RAID Controller"}, + {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0, + "Adaptec RAID Controller"}, + {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0, + "Adaptec RAID Controller"}, + {0x9005, 0x028f, 0, 0, AAC_HWIF_SRCV, 0, + "Adaptec RAID Controller"}, + {0, 0, 0, 0, 0, 0, 0} +}; + +static struct aac_ident * +aac_find_ident(device_t dev) +{ + struct aac_ident *m; + u_int16_t vendid, devid, sub_vendid, sub_devid; + + vendid = pci_get_vendor(dev); + devid = pci_get_device(dev); + sub_vendid = pci_get_subvendor(dev); + sub_devid = pci_get_subdevice(dev); + + for (m = aacraid_family_identifiers; m->vendor != 0; m++) { + if ((m->vendor == vendid) && (m->device == devid)) + return (m); + } + + return (NULL); +} + +/* + * Determine whether this is one of our supported adapters. + */ +static int +aacraid_pci_probe(device_t dev) +{ + struct aac_ident *id; + + fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); + + if ((id = aac_find_ident(dev)) != NULL) { + device_set_desc(dev, id->desc); + return(BUS_PROBE_DEFAULT); + } + return(ENXIO); +} + +/* + * Allocate resources for our device, set up the bus interface. + */ +static int +aacraid_pci_attach(device_t dev) +{ + struct aac_softc *sc; + struct aac_ident *id; + int error; + u_int32_t command; + + fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); + + /* + * Initialise softc. + */ + sc = device_get_softc(dev); + bzero(sc, sizeof(*sc)); + sc->aac_dev = dev; + + /* assume failure is 'not configured' */ + error = ENXIO; + + /* + * Verify that the adapter is correctly set up in PCI space. + */ + command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); + command |= PCIM_CMD_BUSMASTEREN; + pci_write_config(dev, PCIR_COMMAND, command, 2); + command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); + if (!(command & PCIM_CMD_BUSMASTEREN)) { + device_printf(sc->aac_dev, "can't enable bus-master feature\n"); + goto out; + } + if ((command & PCIM_CMD_MEMEN) == 0) { + device_printf(sc->aac_dev, "memory window not available\n"); + goto out; + } + + /* + * Detect the hardware interface version, set up the bus interface + * indirection. + */ + id = aac_find_ident(dev); + sc->aac_hwif = id->hwif; + switch(sc->aac_hwif) { + case AAC_HWIF_SRC: + fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC"); + sc->aac_if = aacraid_src_interface; + break; + case AAC_HWIF_SRCV: + fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv"); + sc->aac_if = aacraid_srcv_interface; + break; + default: + sc->aac_hwif = AAC_HWIF_UNKNOWN; + device_printf(sc->aac_dev, "unknown hardware type\n"); + error = ENXIO; + goto out; + } + + /* assume failure is 'out of memory' */ + error = ENOMEM; + + /* + * Allocate the PCI register window. + */ + sc->aac_regs_rid0 = PCIR_BAR(0); + if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev, + SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) { + device_printf(sc->aac_dev, + "couldn't allocate register window 0\n"); + goto out; + } + sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); + sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); + + sc->aac_regs_rid1 = PCIR_BAR(2); + if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev, + SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) { + device_printf(sc->aac_dev, + "couldn't allocate register window 1\n"); + goto out; + } + sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); + sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); + + /* + * Allocate the parent bus DMA tag appropriate for our PCI interface. + * + * Note that some of these controllers are 64-bit capable. + */ + if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ + PAGE_SIZE, 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, /* No locking needed */ + &sc->aac_parent_dmat)) { + device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); + goto out; + } + + /* Set up quirks */ + sc->flags = id->quirks; + + /* + * Do bus-independent initialisation. + */ + error = aacraid_attach(sc); + +out: + if (error) + aacraid_free(sc); + return(error); +} |