cab9acb79f
ever connect a SCSI Cdrom/Tape/Jukebox/Scanner/Printer/kitty-litter-scooper to your high-end RAID controller. The interface to the arrays is still via the block interface; this merely provides a way to circumvent the RAID functionality and access the SCSI buses directly. Note that for somewhat obvious reasons, hard drives are not exposed to the da driver through this interface, though you can still talk to them via the pass driver. Be the first on your block to low-level format unsuspecting drives that are part of an array! To enable this, add the 'aacp' device to your kernel config. MFC after: 3 days
337 lines
9.7 KiB
C
337 lines
9.7 KiB
C
/*-
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2001 Scott Long
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* Copyright (c) 2000 BSDi
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* Copyright (c) 2001 Adaptec, Inc.
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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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* $FreeBSD$
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*/
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/*
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* PCI bus interface and resource allocation.
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*/
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#include "opt_aac.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <dev/aac/aac_compat.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/devicestat.h>
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#include <sys/disk.h>
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#include <machine/bus_memio.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 <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <dev/aac/aacreg.h>
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#include <dev/aac/aac_ioctl.h>
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#include <dev/aac/aacvar.h>
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static int aac_pci_probe(device_t dev);
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static int aac_pci_attach(device_t dev);
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static device_method_t aac_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, aac_pci_probe),
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DEVMETHOD(device_attach, aac_pci_attach),
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DEVMETHOD(device_detach, aac_detach),
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DEVMETHOD(device_suspend, aac_suspend),
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DEVMETHOD(device_resume, aac_resume),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{ 0, 0 }
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};
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static driver_t aac_pci_driver = {
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"aac",
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aac_methods,
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sizeof(struct aac_softc)
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};
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static devclass_t aac_devclass;
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DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
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struct aac_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 hwif;
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int quirks;
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char *desc;
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} aac_identifiers[] = {
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{0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 2/Si"},
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{0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Si"},
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{0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Si"},
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{0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x0008, 0x1028, 0x00cf, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
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"Dell PERC 3/Di"},
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{0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM,
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"Adaptec AAC-364"},
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{0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 0,
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"Adaptec SCSI RAID 5400S"},
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{0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM |
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AAC_QUIRK_PERC2QC, "Dell PERC 2/QC"},
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{0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM,
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AAC_QUIRK_CAM_NORESET, "HP NetRaid-4M"},
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{0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, 0,
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"Adaptec SCSI RAID 2200S"},
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{0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, 0,
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"Adaptec SCSI RAID 2200S"},
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{0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, 0,
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"Adaptec SCSI RAID 2120S"},
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{0, 0, 0, 0, 0, 0, 0}
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};
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/*
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* Determine whether this is one of our supported adapters.
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*/
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static int
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aac_pci_probe(device_t dev)
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{
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struct aac_ident *m;
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debug_called(1);
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for (m = aac_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 ==
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pci_get_subvendor(dev))) &&
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((m->subdevice == 0) || ((m->subdevice ==
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pci_get_subdevice(dev))))) {
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device_set_desc(dev, m->desc);
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return(-10); /* allow room to be overridden */
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}
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}
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return(ENXIO);
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}
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/*
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* Allocate resources for our device, set up the bus interface.
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*/
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static int
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aac_pci_attach(device_t dev)
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{
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struct aac_softc *sc;
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int i, error;
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u_int32_t command;
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debug_called(1);
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/*
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* Initialise softc.
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*/
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sc = device_get_softc(dev);
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bzero(sc, sizeof(*sc));
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sc->aac_dev = dev;
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/* assume failure is 'not configured' */
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error = ENXIO;
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/*
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* Verify that the adapter is correctly set up in PCI space.
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*/
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command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
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command |= PCIM_CMD_BUSMASTEREN;
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pci_write_config(dev, PCIR_COMMAND, command, 2);
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command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
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if (!(command & PCIM_CMD_BUSMASTEREN)) {
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device_printf(sc->aac_dev, "can't enable bus-master feature\n");
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goto out;
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}
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if ((command & PCIM_CMD_MEMEN) == 0) {
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device_printf(sc->aac_dev, "memory window not available\n");
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goto out;
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}
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/*
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* Allocate the PCI register window.
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*/
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sc->aac_regs_rid = 0x10; /* first base address register */
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if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev,
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SYS_RES_MEMORY,
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&sc->aac_regs_rid,
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0, ~0, 1,
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RF_ACTIVE)) == NULL) {
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device_printf(sc->aac_dev,
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"couldn't allocate register window\n");
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goto out;
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}
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sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
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sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
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/*
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* Allocate and connect our interrupt.
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*/
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sc->aac_irq_rid = 0;
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if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ,
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&sc->aac_irq_rid, 0, ~0, 1,
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RF_SHAREABLE |
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RF_ACTIVE)) == NULL) {
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device_printf(sc->aac_dev, "can't allocate interrupt\n");
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goto out;
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}
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#ifndef INTR_ENTROPY
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#define INTR_ENTROPY 0
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#endif
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if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY,
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aac_intr, sc, &sc->aac_intr)) {
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device_printf(sc->aac_dev, "can't set up interrupt\n");
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goto out;
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}
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/* assume failure is 'out of memory' */
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error = ENOMEM;
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/*
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* Allocate the parent bus DMA tag appropriate for our PCI interface.
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*
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* Note that some of these controllers are 64-bit capable.
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*/
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if (bus_dma_tag_create(NULL, /* parent */
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PAGE_SIZE, 0, /* algnmnt, 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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MAXBSIZE, /* maxsize */
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AAC_MAXSGENTRIES, /* nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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BUS_DMA_ALLOCNOW, /* flags */
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&sc->aac_parent_dmat)) {
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device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
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goto out;
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}
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/*
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* Create DMA tag for mapping buffers into controller-addressable space.
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*/
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if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
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1, 0, /* algnmnt, boundary */
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BUS_SPACE_MAXADDR, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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&sc->aac_buffer_dmat)) {
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device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
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goto out;
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}
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/*
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* Create DMA tag for mapping FIBs into controller-addressable space..
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*/
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if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
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1, 0, /* algnmnt, boundary */
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BUS_SPACE_MAXADDR, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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AAC_FIB_COUNT *
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sizeof(struct aac_fib), 1, /* maxsize, nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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&sc->aac_fib_dmat)) {
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device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");;
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goto out;
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}
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/*
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* Detect the hardware interface version, set up the bus interface
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* indirection.
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*/
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sc->aac_hwif = AAC_HWIF_UNKNOWN;
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for (i = 0; aac_identifiers[i].vendor != 0; i++) {
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if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
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(aac_identifiers[i].device == pci_get_device(dev)) &&
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(aac_identifiers[i].subvendor == pci_get_subvendor(dev)) &&
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(aac_identifiers[i].subdevice == pci_get_subdevice(dev))) {
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sc->aac_hwif = aac_identifiers[i].hwif;
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switch(sc->aac_hwif) {
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case AAC_HWIF_I960RX:
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debug(2, "set hardware up for i960Rx");
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sc->aac_if = aac_rx_interface;
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break;
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case AAC_HWIF_STRONGARM:
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debug(2, "set hardware up for StrongARM");
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sc->aac_if = aac_sa_interface;
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break;
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case AAC_HWIF_FALCON:
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debug(2, "set hardware up for Falcon/PPC");
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sc->aac_if = aac_fa_interface;
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break;
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}
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/* Set up quirks */
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sc->quirks = aac_identifiers[i].quirks;
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break;
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}
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}
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if (sc->aac_hwif == AAC_HWIF_UNKNOWN) {
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device_printf(sc->aac_dev, "unknown hardware type\n");
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error = ENXIO;
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goto out;
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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 = aac_attach(sc);
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out:
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if (error)
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aac_free(sc);
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return(error);
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}
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