220 lines
6.1 KiB
C
220 lines
6.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 1999 Michael Smith
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bio.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/sx.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <geom/geom_disk.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/mlx/mlxio.h>
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#include <dev/mlx/mlxvar.h>
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#include <dev/mlx/mlxreg.h>
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static int mlx_pci_probe(device_t dev);
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static int mlx_pci_attach(device_t dev);
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static device_method_t mlx_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, mlx_pci_probe),
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DEVMETHOD(device_attach, mlx_pci_attach),
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DEVMETHOD(device_detach, mlx_detach),
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DEVMETHOD(device_shutdown, mlx_shutdown),
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DEVMETHOD(device_suspend, mlx_suspend),
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DEVMETHOD(device_resume, mlx_resume),
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DEVMETHOD_END
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};
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static driver_t mlx_pci_driver = {
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"mlx",
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mlx_methods,
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sizeof(struct mlx_softc)
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};
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DRIVER_MODULE(mlx, pci, mlx_pci_driver, 0, 0);
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struct mlx_ident
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{
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u_int16_t vendor;
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u_int16_t device;
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u_int16_t subvendor;
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u_int16_t subdevice;
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int iftype;
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char *desc;
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} mlx_identifiers[] = {
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{0x1069, 0x0001, 0x0000, 0x0000, MLX_IFTYPE_2, "Mylex version 2 RAID interface"},
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{0x1069, 0x0002, 0x0000, 0x0000, MLX_IFTYPE_3, "Mylex version 3 RAID interface"},
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{0x1069, 0x0010, 0x0000, 0x0000, MLX_IFTYPE_4, "Mylex version 4 RAID interface"},
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{0x1011, 0x1065, 0x1069, 0x0020, MLX_IFTYPE_5, "Mylex version 5 RAID interface"},
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{0, 0, 0, 0, 0, 0}
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};
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static struct mlx_ident *
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mlx_pci_match(device_t dev)
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{
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struct mlx_ident *m;
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for (m = mlx_identifiers; m->vendor != 0; m++) {
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if ((m->vendor == pci_get_vendor(dev)) &&
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(m->device == pci_get_device(dev)) &&
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((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) &&
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(m->subdevice == pci_get_subdevice(dev)))))
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return (m);
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}
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return (NULL);
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}
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static int
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mlx_pci_probe(device_t dev)
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{
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struct mlx_ident *m;
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debug_called(1);
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m = mlx_pci_match(dev);
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if (m != NULL) {
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device_set_desc(dev, m->desc);
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return(BUS_PROBE_DEFAULT);
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}
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return(ENXIO);
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}
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static int
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mlx_pci_attach(device_t dev)
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{
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struct mlx_softc *sc;
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struct mlx_ident *m;
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int error;
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debug_called(1);
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pci_enable_busmaster(dev);
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sc = device_get_softc(dev);
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sc->mlx_dev = dev;
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/*
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* Work out what sort of adapter this is (we need to know this in order
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* to map the appropriate interface resources).
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*/
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m = mlx_pci_match(dev);
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if (m == NULL) /* shouldn't happen */
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return(ENXIO);
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sc->mlx_iftype = m->iftype;
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mtx_init(&sc->mlx_io_lock, "mlx I/O", NULL, MTX_DEF);
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sx_init(&sc->mlx_config_lock, "mlx config");
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callout_init_mtx(&sc->mlx_timeout, &sc->mlx_io_lock, 0);
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/*
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* Allocate the PCI register window.
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*/
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/* type 2/3 adapters have an I/O region we don't prefer at base 0 */
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switch(sc->mlx_iftype) {
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case MLX_IFTYPE_2:
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case MLX_IFTYPE_3:
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sc->mlx_mem_type = SYS_RES_MEMORY;
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sc->mlx_mem_rid = MLX_CFG_BASE1;
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sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
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&sc->mlx_mem_rid, RF_ACTIVE);
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if (sc->mlx_mem == NULL) {
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sc->mlx_mem_type = SYS_RES_IOPORT;
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sc->mlx_mem_rid = MLX_CFG_BASE0;
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sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
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&sc->mlx_mem_rid, RF_ACTIVE);
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}
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break;
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case MLX_IFTYPE_4:
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case MLX_IFTYPE_5:
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sc->mlx_mem_type = SYS_RES_MEMORY;
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sc->mlx_mem_rid = MLX_CFG_BASE0;
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sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
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&sc->mlx_mem_rid, RF_ACTIVE);
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break;
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}
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if (sc->mlx_mem == NULL) {
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device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n");
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mlx_free(sc);
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return(ENXIO);
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}
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/*
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* Allocate the parent bus DMA tag appropriate for PCI.
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*/
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error = bus_dma_tag_create(bus_get_dma_tag(dev), /* PCI parent */
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1, 0, /* alignment, boundary */
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BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
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BUS_SPACE_UNRESTRICTED, /* nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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BUS_DMA_ALLOCNOW, /* flags */
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NULL, /* lockfunc */
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NULL, /* lockarg */
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&sc->mlx_parent_dmat);
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if (error != 0) {
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device_printf(dev, "can't allocate parent DMA tag\n");
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mlx_free(sc);
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return(ENOMEM);
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}
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/*
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* Do bus-independent initialisation.
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*/
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error = mlx_attach(sc);
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if (error != 0) {
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mlx_free(sc);
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return(error);
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}
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/*
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* Start the controller.
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*/
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mlx_startup(sc);
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return(0);
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}
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