e3261a6859
Add a tunable "hw.mfi.mrsas_enable" to allow mfi(4) to drop priority and allow mrsas(4) from LSI to attach to newer LSI cards that are support by mrsas(4). If mrsas(4) is not loaded into the system at boot then mfi(4) will always attach. If a modified mrsas(4) is loaded in the system. That modification is return "-30" in it's probe since that is between BUS_PROBE_DEFAULT and BUS_PROBE_LOW_PRIORITY. This option is controller by a new probe flag "MFI_FLAGS_MRSAS" in mfi_ident that denotes cards that should work with mrsas(4). New entries that should have this option. This is the first step to get mrsas(4) checked into FreeBSD and to avoid collision with people that use mrsas(4) from LSI. Since mfi(4) takes priority, then mrsas(4) users need to rebuild GENERIC. Using the .disabled="1" method doesn't work since that blocks attaching and the probe gave it to mfi(4). MFC r267451 (by delphij): Correct variable for loader tunable variable hw.mfi.mrsas_enable.
339 lines
11 KiB
C
339 lines
11 KiB
C
/*-
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* Copyright (c) 2006 IronPort Systems
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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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/*-
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* Copyright (c) 2007 LSI Corp.
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* Copyright (c) 2007 Rajesh Prabhakaran.
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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 MegaSAS controllers */
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#include "opt_mfi.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/selinfo.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/bio.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <sys/uio.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/mfi/mfireg.h>
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#include <dev/mfi/mfi_ioctl.h>
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#include <dev/mfi/mfivar.h>
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static int mfi_pci_probe(device_t);
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static int mfi_pci_attach(device_t);
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static int mfi_pci_detach(device_t);
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static int mfi_pci_suspend(device_t);
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static int mfi_pci_resume(device_t);
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static void mfi_pci_free(struct mfi_softc *);
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static device_method_t mfi_methods[] = {
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DEVMETHOD(device_probe, mfi_pci_probe),
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DEVMETHOD(device_attach, mfi_pci_attach),
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DEVMETHOD(device_detach, mfi_pci_detach),
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DEVMETHOD(device_suspend, mfi_pci_suspend),
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DEVMETHOD(device_resume, mfi_pci_resume),
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DEVMETHOD_END
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};
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static driver_t mfi_pci_driver = {
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"mfi",
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mfi_methods,
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sizeof(struct mfi_softc)
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};
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static devclass_t mfi_devclass;
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DRIVER_MODULE(mfi, pci, mfi_pci_driver, mfi_devclass, 0, 0);
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MODULE_VERSION(mfi, 1);
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static int mfi_msi = 1;
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TUNABLE_INT("hw.mfi.msi", &mfi_msi);
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SYSCTL_INT(_hw_mfi, OID_AUTO, msi, CTLFLAG_RDTUN, &mfi_msi, 0,
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"Enable use of MSI interrupts");
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static int mfi_mrsas_enable = 0;
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TUNABLE_INT("hw.mfi.mrsas_enable", &mfi_mrsas_enable);
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SYSCTL_INT(_hw_mfi, OID_AUTO, mrsas_enable, CTLFLAG_RDTUN, &mfi_mrsas_enable,
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0, "Allow mrasas to take newer cards");
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struct mfi_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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int flags;
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const char *desc;
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} mfi_identifiers[] = {
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{0x1000, 0x005b, 0x1028, 0x1f2d, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H810 Adapter"},
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{0x1000, 0x005b, 0x1028, 0x1f30, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Embedded"},
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{0x1000, 0x005b, 0x1028, 0x1f31, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Adapter"},
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{0x1000, 0x005b, 0x1028, 0x1f33, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (blades)"},
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{0x1000, 0x005b, 0x1028, 0x1f34, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710P Mini (monolithics)"},
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{0x1000, 0x005b, 0x1028, 0x1f35, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Adapter"},
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{0x1000, 0x005b, 0x1028, 0x1f37, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (blades)"},
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{0x1000, 0x005b, 0x1028, 0x1f38, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Dell PERC H710 Mini (monolithics)"},
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{0x1000, 0x005b, 0x8086, 0x9265, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25DB080"},
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{0x1000, 0x005b, 0x8086, 0x9285, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "Intel (R) RAID Controller RS25NB008"},
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{0x1000, 0x005b, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS, "ThunderBolt"},
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{0x1000, 0x005d, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_INVADER, "Invader"},
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{0x1000, 0x005f, 0xffff, 0xffff, MFI_FLAGS_SKINNY| MFI_FLAGS_TBOLT| MFI_FLAGS_MRSAS| MFI_FLAGS_FURY, "Fury"},
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{0x1000, 0x0060, 0x1028, 0xffff, MFI_FLAGS_1078, "Dell PERC 6"},
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{0x1000, 0x0060, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
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{0x1000, 0x0071, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
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{0x1000, 0x0073, 0xffff, 0xffff, MFI_FLAGS_SKINNY, "Drake Skinny"},
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{0x1000, 0x0078, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
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{0x1000, 0x0079, 0x1028, 0x1f15, MFI_FLAGS_GEN2, "Dell PERC H800 Adapter"},
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{0x1000, 0x0079, 0x1028, 0x1f16, MFI_FLAGS_GEN2, "Dell PERC H700 Adapter"},
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{0x1000, 0x0079, 0x1028, 0x1f17, MFI_FLAGS_GEN2, "Dell PERC H700 Integrated"},
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{0x1000, 0x0079, 0x1028, 0x1f18, MFI_FLAGS_GEN2, "Dell PERC H700 Modular"},
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{0x1000, 0x0079, 0x1028, 0x1f19, MFI_FLAGS_GEN2, "Dell PERC H700"},
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{0x1000, 0x0079, 0x1028, 0x1f1a, MFI_FLAGS_GEN2, "Dell PERC H800 Proto Adapter"},
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{0x1000, 0x0079, 0x1028, 0x1f1b, MFI_FLAGS_GEN2, "Dell PERC H800"},
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{0x1000, 0x0079, 0x1028, 0xffff, MFI_FLAGS_GEN2, "Dell PERC Gen2"},
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{0x1000, 0x0079, 0xffff, 0xffff, MFI_FLAGS_GEN2, "LSI MegaSAS Gen2"},
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{0x1000, 0x007c, 0xffff, 0xffff, MFI_FLAGS_1078, "LSI MegaSAS 1078"},
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{0x1000, 0x0411, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Brocton IOP */
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{0x1000, 0x0413, 0xffff, 0xffff, MFI_FLAGS_1064R, "LSI MegaSAS 1064R"}, /* Verde ZCR */
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{0x1028, 0x0015, 0xffff, 0xffff, MFI_FLAGS_1064R, "Dell PERC 5/i"},
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{0, 0, 0, 0, 0, NULL}
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};
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static struct mfi_ident *
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mfi_find_ident(device_t dev)
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{
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struct mfi_ident *m;
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for (m = mfi_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 == pci_get_subvendor(dev)) ||
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(m->subvendor == 0xffff)) &&
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((m->subdevice == pci_get_subdevice(dev)) ||
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(m->subdevice == 0xffff)))
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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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mfi_pci_probe(device_t dev)
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{
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struct mfi_ident *id;
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if ((id = mfi_find_ident(dev)) != NULL) {
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device_set_desc(dev, id->desc);
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/* give priority to mrsas if tunable set */
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TUNABLE_INT_FETCH("hw.mfi.mrsas_enable", &mfi_mrsas_enable);
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if ((id->flags & MFI_FLAGS_MRSAS) && mfi_mrsas_enable)
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return (BUS_PROBE_LOW_PRIORITY);
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else
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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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mfi_pci_attach(device_t dev)
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{
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struct mfi_softc *sc;
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struct mfi_ident *m;
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int count, error;
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sc = device_get_softc(dev);
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bzero(sc, sizeof(*sc));
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sc->mfi_dev = dev;
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m = mfi_find_ident(dev);
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sc->mfi_flags = m->flags;
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/* Ensure busmastering is enabled */
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pci_enable_busmaster(dev);
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/* Allocate PCI registers */
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if ((sc->mfi_flags & MFI_FLAGS_1064R) ||
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(sc->mfi_flags & MFI_FLAGS_1078)) {
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/* 1068/1078: Memory mapped BAR is at offset 0x10 */
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sc->mfi_regs_rid = PCIR_BAR(0);
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}
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else if ((sc->mfi_flags & MFI_FLAGS_GEN2) ||
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(sc->mfi_flags & MFI_FLAGS_SKINNY) ||
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(sc->mfi_flags & MFI_FLAGS_TBOLT)) {
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/* Gen2/Skinny: Memory mapped BAR is at offset 0x14 */
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sc->mfi_regs_rid = PCIR_BAR(1);
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}
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if ((sc->mfi_regs_resource = bus_alloc_resource_any(sc->mfi_dev,
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SYS_RES_MEMORY, &sc->mfi_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->mfi_btag = rman_get_bustag(sc->mfi_regs_resource);
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sc->mfi_bhandle = rman_get_bushandle(sc->mfi_regs_resource);
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error = ENOMEM;
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/* Allocate parent DMA tag */
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if (bus_dma_tag_create( bus_get_dma_tag(dev), /* PCI 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->mfi_parent_dmat)) {
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device_printf(dev, "Cannot allocate parent DMA tag\n");
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goto out;
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}
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/* Allocate IRQ resource. */
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sc->mfi_irq_rid = 0;
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count = 1;
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if (mfi_msi && pci_alloc_msi(sc->mfi_dev, &count) == 0) {
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device_printf(sc->mfi_dev, "Using MSI\n");
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sc->mfi_irq_rid = 1;
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}
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if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ,
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&sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
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device_printf(sc->mfi_dev, "Cannot allocate interrupt\n");
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error = EINVAL;
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goto out;
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}
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error = mfi_attach(sc);
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out:
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if (error) {
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mfi_free(sc);
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mfi_pci_free(sc);
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}
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return (error);
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}
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static int
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mfi_pci_detach(device_t dev)
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{
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struct mfi_softc *sc;
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int error, devcount, i;
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device_t *devlist;
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sc = device_get_softc(dev);
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sx_xlock(&sc->mfi_config_lock);
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mtx_lock(&sc->mfi_io_lock);
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if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
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mtx_unlock(&sc->mfi_io_lock);
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sx_xunlock(&sc->mfi_config_lock);
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return (EBUSY);
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}
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sc->mfi_detaching = 1;
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mtx_unlock(&sc->mfi_io_lock);
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if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) {
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sx_xunlock(&sc->mfi_config_lock);
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return error;
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}
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for (i = 0; i < devcount; i++)
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device_delete_child(sc->mfi_dev, devlist[i]);
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free(devlist, M_TEMP);
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sx_xunlock(&sc->mfi_config_lock);
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EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
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mfi_shutdown(sc);
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mfi_free(sc);
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mfi_pci_free(sc);
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return (0);
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}
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static void
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mfi_pci_free(struct mfi_softc *sc)
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{
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if (sc->mfi_regs_resource != NULL) {
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bus_release_resource(sc->mfi_dev, SYS_RES_MEMORY,
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sc->mfi_regs_rid, sc->mfi_regs_resource);
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}
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if (sc->mfi_irq_rid != 0)
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pci_release_msi(sc->mfi_dev);
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return;
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}
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static int
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mfi_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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mfi_pci_resume(device_t dev)
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{
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return (EINVAL);
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}
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