d3c7b9a08a
Bring in a driver for the LSI Logic MPT2 6Gb SAS controllers. This driver supports basic I/O, and works with SAS and SATA drives and expanders. Basic error recovery works (i.e. timeouts and aborts) as well. Integrated RAID isn't supported yet, and there are some known bugs. So this isn't ready for production use, but is certainly ready for testing and additional development. For the moment, new commits to this driver should go into the FreeBSD Perforce repository first (//depot/projects/mps/...) and then get merged into -current once they've been vetted. This has only been added to the amd64 GENERIC, since that is the only architecture I have tested this driver with. Submitted by: scottl Discussed with: imp, gibbs, will Sponsored by: Yahoo, Spectra Logic Corporation
365 lines
10 KiB
C
365 lines
10 KiB
C
/*-
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* Copyright (c) 2009 Yahoo! 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/* PCI/PCI-X/PCIe bus interface for the LSI MPT2 controllers */
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#include <sys/types.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 <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.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 <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/mps/mpi/mpi2_type.h>
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#include <dev/mps/mpi/mpi2.h>
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#include <dev/mps/mpi/mpi2_ioc.h>
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#include <dev/mps/mpi/mpi2_cnfg.h>
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#include <dev/mps/mpsvar.h>
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static int mps_pci_probe(device_t);
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static int mps_pci_attach(device_t);
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static int mps_pci_detach(device_t);
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static int mps_pci_suspend(device_t);
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static int mps_pci_resume(device_t);
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static void mps_pci_free(struct mps_softc *);
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static int mps_alloc_msix(struct mps_softc *sc, int msgs);
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static int mps_alloc_msi(struct mps_softc *sc, int msgs);
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int mps_disable_msix = 0;
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TUNABLE_INT("hw.mps.disable_msix", &mps_disable_msix);
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SYSCTL_INT(_hw_mps, OID_AUTO, disable_msix, CTLFLAG_RD, &mps_disable_msix, 0,
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"Disable MSIX interrupts\n");
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int mps_disable_msi = 0;
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TUNABLE_INT("hw.mps.disable_msi", &mps_disable_msi);
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SYSCTL_INT(_hw_mps, OID_AUTO, disable_msi, CTLFLAG_RD, &mps_disable_msi, 0,
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"Disable MSI interrupts\n");
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static device_method_t mps_methods[] = {
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DEVMETHOD(device_probe, mps_pci_probe),
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DEVMETHOD(device_attach, mps_pci_attach),
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DEVMETHOD(device_detach, mps_pci_detach),
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DEVMETHOD(device_suspend, mps_pci_suspend),
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DEVMETHOD(device_resume, mps_pci_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 mps_pci_driver = {
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"mps",
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mps_methods,
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sizeof(struct mps_softc)
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};
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static devclass_t mps_devclass;
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DRIVER_MODULE(mps, pci, mps_pci_driver, mps_devclass, 0, 0);
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struct mps_ident {
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uint16_t vendor;
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uint16_t device;
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uint16_t subvendor;
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uint16_t subdevice;
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u_int flags;
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const char *desc;
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} mps_identifiers[] = {
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
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0xffff, 0xffff, 0, "LSI SAS2004" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
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0xffff, 0xffff, 0, "LSI SAS2008" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
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0xffff, 0xffff, 0, "LSI SAS2108" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
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0xffff, 0xffff, 0, "LSI SAS2108" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
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0xffff, 0xffff, 0, "LSI SAS2108" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
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0xffff, 0xffff, 0, "LSI SAS2116" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
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0xffff, 0xffff, 0, "LSI SAS2116" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_7,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_8,
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0xffff, 0xffff, 0, "LSI SAS2208" },
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{ 0, 0, 0, 0, 0, NULL }
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};
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static struct mps_ident *
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mps_find_ident(device_t dev)
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{
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struct mps_ident *m;
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for (m = mps_identifiers; m->vendor != 0; m++) {
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if (m->vendor != pci_get_vendor(dev))
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continue;
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if (m->device != pci_get_device(dev))
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continue;
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if ((m->subvendor != 0xffff) &&
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(m->subvendor != pci_get_subvendor(dev)))
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continue;
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if ((m->subdevice != 0xffff) &&
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(m->subdevice != pci_get_subdevice(dev)))
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continue;
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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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mps_pci_probe(device_t dev)
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{
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struct mps_ident *id;
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if ((id = mps_find_ident(dev)) != NULL) {
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device_set_desc(dev, id->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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mps_pci_attach(device_t dev)
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{
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struct mps_softc *sc;
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struct mps_ident *m;
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uint16_t command;
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int error;
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sc = device_get_softc(dev);
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bzero(sc, sizeof(*sc));
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sc->mps_dev = dev;
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m = mps_find_ident(dev);
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sc->mps_flags = m->flags;
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/* Twiddle basic PCI config bits for a sanity check */
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command = pci_read_config(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(dev, PCIR_COMMAND, 2);
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if ((command & PCIM_CMD_BUSMASTEREN) == 0) {
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device_printf(dev, "Cannot enable PCI busmaster\n");
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return (ENXIO);
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}
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if ((command & PCIM_CMD_MEMEN) == 0) {
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device_printf(dev, "PCI memory window not available\n");
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return (ENXIO);
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}
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/* Allocate the System Interface Register Set */
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sc->mps_regs_rid = PCIR_BAR(1);
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if ((sc->mps_regs_resource = bus_alloc_resource_any(dev,
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SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) {
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device_printf(dev, "Cannot allocate PCI registers\n");
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return (ENXIO);
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}
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sc->mps_btag = rman_get_bustag(sc->mps_regs_resource);
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sc->mps_bhandle = rman_get_bushandle(sc->mps_regs_resource);
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/* Allocate the parent DMA tag */
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if (bus_dma_tag_create( NULL, /* 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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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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0, /* flags */
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NULL, NULL, /* lockfunc, lockarg */
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&sc->mps_parent_dmat)) {
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device_printf(dev, "Cannot allocate parent DMA tag\n");
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mps_pci_free(sc);
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return (ENOMEM);
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}
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if ((error = mps_attach(sc)) != 0)
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mps_pci_free(sc);
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return (error);
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}
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int
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mps_pci_setup_interrupts(struct mps_softc *sc)
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{
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device_t dev;
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int i, error, msgs;
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dev = sc->mps_dev;
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error = ENXIO;
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if ((mps_disable_msix == 0) &&
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((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT))
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error = mps_alloc_msix(sc, MPS_MSI_COUNT);
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if ((error != 0) && (mps_disable_msi == 0) &&
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((msgs = pci_msi_count(dev)) >= MPS_MSI_COUNT))
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error = mps_alloc_msi(sc, MPS_MSI_COUNT);
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if (error != 0) {
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sc->mps_flags |= MPS_FLAGS_INTX;
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sc->mps_irq_rid[0] = 0;
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sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->mps_irq_rid[0], RF_SHAREABLE | RF_ACTIVE);
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if (sc->mps_irq[0] == NULL) {
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device_printf(dev, "Cannot allocate INTx interrupt\n");
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return (ENXIO);
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}
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error = bus_setup_intr(dev, sc->mps_irq[0],
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INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr, sc,
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&sc->mps_intrhand[0]);
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if (error)
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device_printf(dev, "Cannot setup INTx interrupt\n");
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} else {
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sc->mps_flags |= MPS_FLAGS_MSI;
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for (i = 0; i < MPS_MSI_COUNT; i++) {
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sc->mps_irq_rid[i] = i + 1;
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sc->mps_irq[i] = bus_alloc_resource_any(dev,
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SYS_RES_IRQ, &sc->mps_irq_rid[i], RF_ACTIVE);
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if (sc->mps_irq[i] == NULL) {
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device_printf(dev,
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"Cannot allocate MSI interrupt\n");
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return (ENXIO);
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}
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error = bus_setup_intr(dev, sc->mps_irq[i],
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INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr_msi,
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sc, &sc->mps_intrhand[i]);
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if (error) {
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device_printf(dev,
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"Cannot setup MSI interrupt %d\n", i);
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break;
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}
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}
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}
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return (error);
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}
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static int
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mps_pci_detach(device_t dev)
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{
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struct mps_softc *sc;
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int error;
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sc = device_get_softc(dev);
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if ((error = mps_free(sc)) != 0)
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return (error);
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mps_pci_free(sc);
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return (0);
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}
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static void
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mps_pci_free(struct mps_softc *sc)
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{
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int i;
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if (sc->mps_parent_dmat != NULL) {
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bus_dma_tag_destroy(sc->mps_parent_dmat);
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}
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if (sc->mps_flags & MPS_FLAGS_MSI) {
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for (i = 0; i < MPS_MSI_COUNT; i++) {
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if (sc->mps_irq[i] != NULL) {
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bus_teardown_intr(sc->mps_dev, sc->mps_irq[i],
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sc->mps_intrhand[i]);
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bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
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sc->mps_irq_rid[i], sc->mps_irq[i]);
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}
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}
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pci_release_msi(sc->mps_dev);
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}
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if (sc->mps_flags & MPS_FLAGS_INTX) {
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bus_teardown_intr(sc->mps_dev, sc->mps_irq[0],
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sc->mps_intrhand[0]);
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bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
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sc->mps_irq_rid[0], sc->mps_irq[0]);
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}
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if (sc->mps_regs_resource != NULL) {
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bus_release_resource(sc->mps_dev, SYS_RES_MEMORY,
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sc->mps_regs_rid, sc->mps_regs_resource);
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}
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return;
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}
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static int
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mps_pci_suspend(device_t dev)
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{
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return (EINVAL);
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}
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static int
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mps_pci_resume(device_t dev)
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{
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return (EINVAL);
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}
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static int
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mps_alloc_msix(struct mps_softc *sc, int msgs)
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{
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int error;
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error = pci_alloc_msix(sc->mps_dev, &msgs);
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return (error);
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}
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static int
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mps_alloc_msi(struct mps_softc *sc, int msgs)
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{
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int error;
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error = pci_alloc_msi(sc->mps_dev, &msgs);
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return (error);
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}
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