286e947fee
holders. The license that was approved for my changes to this driver originally came from LSI, but the changes to the driver core are not owned by LSI. MFC: 1 day
743 lines
20 KiB
C
743 lines
20 KiB
C
/*-
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* PCI specific probe and attach routines for LSI Fusion Adapters
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* FreeBSD Version.
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*
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* Copyright (c) 2000, 2001 by Greg Ansley
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* Partially derived from Matt Jacob's ISP driver.
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* Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002 by Matthew Jacob
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* Feral Software
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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
|
|
* 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 immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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
|
|
* 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 FOR
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* 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) 2004, Avid Technology, Inc. and its contributors.
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* Copyright (c) 2005, WHEEL Sp. z o.o.
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* Copyright (c) 2004, 2005 Justin T. Gibbs
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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
|
|
* modification, are permitted provided that the following conditions are
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|
* met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
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|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
|
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* ("Disclaimer") and any redistribution must be conditioned upon including
|
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* a substantially similar Disclaimer requirement for further binary
|
|
* redistribution.
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* 3. Neither the names of the above listed copyright holders nor the names
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|
* of any contributors may be used to endorse or promote products derived
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|
* from this software without specific prior written permission.
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|
*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
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|
* OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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|
*/
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|
#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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|
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|
#include <dev/mpt/mpt.h>
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#include <dev/mpt/mpt_cam.h>
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#include <dev/mpt/mpt_raid.h>
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|
#if __FreeBSD_version < 500000
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#else
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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|
#endif
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|
|
|
#ifndef PCI_VENDOR_LSI
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#define PCI_VENDOR_LSI 0x1000
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|
#endif
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|
|
|
#ifndef PCI_PRODUCT_LSI_FC909
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#define PCI_PRODUCT_LSI_FC909 0x0620
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|
#endif
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|
|
|
#ifndef PCI_PRODUCT_LSI_FC909A
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|
#define PCI_PRODUCT_LSI_FC909A 0x0621
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|
#endif
|
|
|
|
#ifndef PCI_PRODUCT_LSI_FC919
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|
#define PCI_PRODUCT_LSI_FC919 0x0624
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|
#endif
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|
|
|
#ifndef PCI_PRODUCT_LSI_FC929
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|
#define PCI_PRODUCT_LSI_FC929 0x0622
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|
#endif
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|
|
|
#ifndef PCI_PRODUCT_LSI_1030
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#define PCI_PRODUCT_LSI_1030 0x0030
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|
#endif
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|
|
|
#ifndef PCIM_CMD_SERRESPEN
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#define PCIM_CMD_SERRESPEN 0x0100
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|
#endif
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|
|
|
|
|
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|
#define MPT_IO_BAR 0
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#define MPT_MEM_BAR 1
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static int mpt_pci_probe(device_t);
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static int mpt_pci_attach(device_t);
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|
static void mpt_free_bus_resources(struct mpt_softc *mpt);
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static int mpt_pci_detach(device_t);
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static int mpt_pci_shutdown(device_t);
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static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
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static void mpt_dma_mem_free(struct mpt_softc *mpt);
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static void mpt_read_config_regs(struct mpt_softc *mpt);
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static void mpt_pci_intr(void *);
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|
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|
static device_method_t mpt_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, mpt_pci_probe),
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DEVMETHOD(device_attach, mpt_pci_attach),
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DEVMETHOD(device_detach, mpt_pci_detach),
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DEVMETHOD(device_shutdown, mpt_pci_shutdown),
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{ 0, 0 }
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};
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|
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|
static driver_t mpt_driver = {
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"mpt", mpt_methods, sizeof(struct mpt_softc)
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};
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static devclass_t mpt_devclass;
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DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
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MODULE_VERSION(mpt, 1);
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static int
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mpt_pci_probe(device_t dev)
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{
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char *desc;
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if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
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return (ENXIO);
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switch ((pci_get_device(dev) & ~1)) {
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case PCI_PRODUCT_LSI_FC909:
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desc = "LSILogic FC909 FC Adapter";
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break;
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case PCI_PRODUCT_LSI_FC909A:
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desc = "LSILogic FC909A FC Adapter";
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break;
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case PCI_PRODUCT_LSI_FC919:
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desc = "LSILogic FC919 FC Adapter";
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break;
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case PCI_PRODUCT_LSI_FC929:
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desc = "LSILogic FC929 FC Adapter";
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break;
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case PCI_PRODUCT_LSI_1030:
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desc = "LSILogic 1030 Ultra4 Adapter";
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break;
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default:
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return (ENXIO);
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}
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device_set_desc(dev, desc);
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return (0);
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}
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|
#ifdef RELENG_4
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static void
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|
mpt_set_options(struct mpt_softc *mpt)
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|
{
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int bitmap;
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|
bitmap = 0;
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if (getenv_int("mpt_disable", &bitmap)) {
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if (bitmap & (1 << mpt->unit)) {
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|
mpt->disabled = 1;
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}
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}
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|
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|
bitmap = 0;
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if (getenv_int("mpt_debug", &bitmap)) {
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if (bitmap & (1 << mpt->unit)) {
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mpt->verbose = MPT_PRT_DEBUG;
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}
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}
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|
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|
}
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#else
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static void
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|
mpt_set_options(struct mpt_softc *mpt)
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|
{
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|
int tval;
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|
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|
tval = 0;
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|
if (resource_int_value(device_get_name(mpt->dev),
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device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
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mpt->disabled = 1;
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|
}
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|
tval = 0;
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|
if (resource_int_value(device_get_name(mpt->dev),
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device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
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mpt->verbose += tval;
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|
}
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|
}
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|
#endif
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|
|
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|
static void
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|
mpt_link_peer(struct mpt_softc *mpt)
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|
{
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|
struct mpt_softc *mpt2;
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|
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|
if (mpt->unit == 0)
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|
return;
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|
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|
/*
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|
* XXX: depends on probe order
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|
*/
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mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
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if (mpt2 == NULL) {
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return;
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|
}
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if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
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return;
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|
}
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if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
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|
return;
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|
}
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|
mpt->mpt2 = mpt2;
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mpt2->mpt2 = mpt;
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if (mpt->verbose >= MPT_PRT_DEBUG) {
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|
mpt_prt(mpt, "linking with peer (mpt%d)\n",
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device_get_unit(mpt2->dev));
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|
}
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|
}
|
|
|
|
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|
static int
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|
mpt_pci_attach(device_t dev)
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|
{
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|
struct mpt_softc *mpt;
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|
int iqd;
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|
uint32_t data, cmd;
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|
|
|
/* Allocate the softc structure */
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|
mpt = (struct mpt_softc*)device_get_softc(dev);
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if (mpt == NULL) {
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device_printf(dev, "cannot allocate softc\n");
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return (ENOMEM);
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|
}
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bzero(mpt, sizeof(struct mpt_softc));
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switch ((pci_get_device(dev) & ~1)) {
|
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case PCI_PRODUCT_LSI_FC909:
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|
case PCI_PRODUCT_LSI_FC909A:
|
|
case PCI_PRODUCT_LSI_FC919:
|
|
case PCI_PRODUCT_LSI_FC929:
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mpt->is_fc = 1;
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break;
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|
default:
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|
break;
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|
}
|
|
mpt->dev = dev;
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mpt->unit = device_get_unit(dev);
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mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
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mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
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mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
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mpt_set_options(mpt);
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mpt->verbose = MPT_PRT_INFO;
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mpt->verbose += (bootverbose != 0)? 1 : 0;
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|
|
|
/* Make sure memory access decoders are enabled */
|
|
cmd = pci_read_config(dev, PCIR_COMMAND, 2);
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if ((cmd & PCIM_CMD_MEMEN) == 0) {
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|
device_printf(dev, "Memory accesses disabled");
|
|
goto bad;
|
|
}
|
|
|
|
/*
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|
* Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
|
|
*/
|
|
cmd |=
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PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
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PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
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pci_write_config(dev, PCIR_COMMAND, cmd, 2);
|
|
|
|
/*
|
|
* Make sure we've disabled the ROM.
|
|
*/
|
|
data = pci_read_config(dev, PCIR_BIOS, 4);
|
|
data &= ~1;
|
|
pci_write_config(dev, PCIR_BIOS, data, 4);
|
|
|
|
/*
|
|
* Is this part a dual?
|
|
* If so, link with our partner (around yet)
|
|
*/
|
|
if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
|
|
(pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
|
|
mpt_link_peer(mpt);
|
|
}
|
|
|
|
/*
|
|
* Set up register access. PIO mode is required for
|
|
* certain reset operations.
|
|
*/
|
|
mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
|
|
mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
|
|
if (mpt->pci_pio_reg == NULL) {
|
|
device_printf(dev, "unable to map registers in PIO mode\n");
|
|
goto bad;
|
|
}
|
|
mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
|
|
mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
|
|
|
|
/* Allocate kernel virtual memory for the 9x9's Mem0 region */
|
|
mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
|
|
mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
|
|
&mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
|
|
if (mpt->pci_reg == NULL) {
|
|
device_printf(dev, "Unable to memory map registers.\n");
|
|
device_printf(dev, "Falling back to PIO mode.\n");
|
|
mpt->pci_st = mpt->pci_pio_st;
|
|
mpt->pci_sh = mpt->pci_pio_sh;
|
|
} else {
|
|
mpt->pci_st = rman_get_bustag(mpt->pci_reg);
|
|
mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
|
|
}
|
|
|
|
/* Get a handle to the interrupt */
|
|
iqd = 0;
|
|
#if __FreeBSD_version < 500000
|
|
mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
|
|
RF_ACTIVE | RF_SHAREABLE);
|
|
#else
|
|
mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
|
|
RF_ACTIVE | RF_SHAREABLE);
|
|
#endif
|
|
if (mpt->pci_irq == NULL) {
|
|
device_printf(dev, "could not allocate interrupt\n");
|
|
goto bad;
|
|
}
|
|
|
|
MPT_LOCK_SETUP(mpt);
|
|
|
|
/* Disable interrupts at the part */
|
|
mpt_disable_ints(mpt);
|
|
|
|
/* Register the interrupt handler */
|
|
if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
|
|
mpt, &mpt->ih)) {
|
|
device_printf(dev, "could not setup interrupt\n");
|
|
goto bad;
|
|
}
|
|
|
|
/* Allocate dma memory */
|
|
/* XXX JGibbs -Should really be done based on IOCFacts. */
|
|
if (mpt_dma_mem_alloc(mpt)) {
|
|
device_printf(dev, "Could not allocate DMA memory\n");
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* Save the PCI config register values
|
|
*
|
|
* Hard resets are known to screw up the BAR for diagnostic
|
|
* memory accesses (Mem1).
|
|
*
|
|
* Using Mem1 is known to make the chip stop responding to
|
|
* configuration space transfers, so we need to save it now
|
|
*/
|
|
|
|
mpt_read_config_regs(mpt);
|
|
|
|
/* Initialize the hardware */
|
|
if (mpt->disabled == 0) {
|
|
MPT_LOCK(mpt);
|
|
if (mpt_attach(mpt) != 0) {
|
|
MPT_UNLOCK(mpt);
|
|
goto bad;
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
|
|
bad:
|
|
mpt_dma_mem_free(mpt);
|
|
mpt_free_bus_resources(mpt);
|
|
|
|
/*
|
|
* but return zero to preserve unit numbering
|
|
*/
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Free bus resources
|
|
*/
|
|
static void
|
|
mpt_free_bus_resources(struct mpt_softc *mpt)
|
|
{
|
|
if (mpt->ih) {
|
|
bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
|
|
mpt->ih = 0;
|
|
}
|
|
|
|
if (mpt->pci_irq) {
|
|
bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
|
|
mpt->pci_irq = 0;
|
|
}
|
|
|
|
if (mpt->pci_pio_reg) {
|
|
bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
|
|
mpt->pci_pio_reg);
|
|
mpt->pci_pio_reg = 0;
|
|
}
|
|
if (mpt->pci_reg) {
|
|
bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
|
|
mpt->pci_reg);
|
|
mpt->pci_reg = 0;
|
|
}
|
|
MPT_LOCK_DESTROY(mpt);
|
|
}
|
|
|
|
|
|
/*
|
|
* Disconnect ourselves from the system.
|
|
*/
|
|
static int
|
|
mpt_pci_detach(device_t dev)
|
|
{
|
|
struct mpt_softc *mpt;
|
|
|
|
mpt = (struct mpt_softc*)device_get_softc(dev);
|
|
mpt_prt(mpt, "mpt_detach\n");
|
|
|
|
if (mpt) {
|
|
mpt_disable_ints(mpt);
|
|
mpt_detach(mpt);
|
|
mpt_reset(mpt, /*reinit*/FALSE);
|
|
mpt_dma_mem_free(mpt);
|
|
mpt_free_bus_resources(mpt);
|
|
if (mpt->raid_volumes != NULL
|
|
&& mpt->ioc_page2 != NULL) {
|
|
int i;
|
|
|
|
for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
|
|
struct mpt_raid_volume *mpt_vol;
|
|
|
|
mpt_vol = &mpt->raid_volumes[i];
|
|
if (mpt_vol->config_page)
|
|
free(mpt_vol->config_page, M_DEVBUF);
|
|
}
|
|
}
|
|
if (mpt->ioc_page2 != NULL)
|
|
free(mpt->ioc_page2, M_DEVBUF);
|
|
if (mpt->ioc_page3 != NULL)
|
|
free(mpt->ioc_page3, M_DEVBUF);
|
|
if (mpt->raid_volumes != NULL)
|
|
free(mpt->raid_volumes, M_DEVBUF);
|
|
if (mpt->raid_disks != NULL)
|
|
free(mpt->raid_disks, M_DEVBUF);
|
|
if (mpt->eh != NULL)
|
|
EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Disable the hardware
|
|
* XXX - Called too early by New Bus!!! ???
|
|
*/
|
|
static int
|
|
mpt_pci_shutdown(device_t dev)
|
|
{
|
|
struct mpt_softc *mpt;
|
|
|
|
mpt = (struct mpt_softc *)device_get_softc(dev);
|
|
if (mpt)
|
|
return (mpt_shutdown(mpt));
|
|
return(0);
|
|
}
|
|
|
|
static int
|
|
mpt_dma_mem_alloc(struct mpt_softc *mpt)
|
|
{
|
|
int i, error;
|
|
uint8_t *vptr;
|
|
uint32_t pptr, end;
|
|
size_t len;
|
|
struct mpt_map_info mi;
|
|
device_t dev = mpt->dev;
|
|
|
|
/* Check if we alreay have allocated the reply memory */
|
|
if (mpt->reply_phys != 0) {
|
|
return 0;
|
|
}
|
|
|
|
len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
|
|
#ifdef RELENG_4
|
|
mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
|
|
if (mpt->request_pool == NULL) {
|
|
device_printf(dev, "cannot allocate request pool\n");
|
|
return (1);
|
|
}
|
|
bzero(mpt->request_pool, len);
|
|
#else
|
|
mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
|
|
if (mpt->request_pool == NULL) {
|
|
device_printf(dev, "cannot allocate request pool\n");
|
|
return (1);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Create a parent dma tag for this device
|
|
*
|
|
* Align at byte boundaries, limit to 32-bit addressing
|
|
* (The chip supports 64-bit addressing, but this driver doesn't)
|
|
*/
|
|
if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
|
|
/*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
|
|
/*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
|
|
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
|
|
&mpt->parent_dmat) != 0) {
|
|
device_printf(dev, "cannot create parent dma tag\n");
|
|
return (1);
|
|
}
|
|
|
|
/* Create a child tag for reply buffers */
|
|
if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
|
|
0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
|
|
NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
|
|
&mpt->reply_dmat) != 0) {
|
|
device_printf(dev, "cannot create a dma tag for replies\n");
|
|
return (1);
|
|
}
|
|
|
|
/* Allocate some DMA accessable memory for replies */
|
|
if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
|
|
BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
|
|
device_printf(dev, "cannot allocate %lu bytes of reply memory\n",
|
|
(u_long)PAGE_SIZE);
|
|
return (1);
|
|
}
|
|
|
|
mi.mpt = mpt;
|
|
mi.error = 0;
|
|
|
|
/* Load and lock it into "bus space" */
|
|
bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
|
|
PAGE_SIZE, mpt_map_rquest, &mi, 0);
|
|
|
|
if (mi.error) {
|
|
device_printf(dev,
|
|
"error %d loading dma map for DMA reply queue\n", mi.error);
|
|
return (1);
|
|
}
|
|
mpt->reply_phys = mi.phys;
|
|
|
|
/* Create a child tag for data buffers */
|
|
if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
|
|
0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
|
|
NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0,
|
|
&mpt->buffer_dmat) != 0) {
|
|
device_printf(dev,
|
|
"cannot create a dma tag for data buffers\n");
|
|
return (1);
|
|
}
|
|
|
|
/* Create a child tag for request buffers */
|
|
if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
|
|
0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
|
|
NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
|
|
&mpt->request_dmat) != 0) {
|
|
device_printf(dev, "cannot create a dma tag for requests\n");
|
|
return (1);
|
|
}
|
|
|
|
/* Allocate some DMA accessable memory for requests */
|
|
if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
|
|
BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
|
|
device_printf(dev,
|
|
"cannot allocate %d bytes of request memory\n",
|
|
MPT_REQ_MEM_SIZE(mpt));
|
|
return (1);
|
|
}
|
|
|
|
mi.mpt = mpt;
|
|
mi.error = 0;
|
|
|
|
/* Load and lock it into "bus space" */
|
|
bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
|
|
MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
|
|
|
|
if (mi.error) {
|
|
device_printf(dev,
|
|
"error %d loading dma map for DMA request queue\n",
|
|
mi.error);
|
|
return (1);
|
|
}
|
|
mpt->request_phys = mi.phys;
|
|
|
|
i = 0;
|
|
pptr = mpt->request_phys;
|
|
vptr = mpt->request;
|
|
end = pptr + MPT_REQ_MEM_SIZE(mpt);
|
|
while(pptr < end) {
|
|
request_t *req = &mpt->request_pool[i];
|
|
req->index = i++;
|
|
|
|
/* Store location of Request Data */
|
|
req->req_pbuf = pptr;
|
|
req->req_vbuf = vptr;
|
|
|
|
pptr += MPT_REQUEST_AREA;
|
|
vptr += MPT_REQUEST_AREA;
|
|
|
|
req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
|
|
req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
|
|
|
|
error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
|
|
if (error) {
|
|
device_printf(dev,
|
|
"error %d creating per-cmd DMA maps\n", error);
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
|
|
/* Deallocate memory that was allocated by mpt_dma_mem_alloc
|
|
*/
|
|
static void
|
|
mpt_dma_mem_free(struct mpt_softc *mpt)
|
|
{
|
|
int i;
|
|
|
|
/* Make sure we aren't double destroying */
|
|
if (mpt->reply_dmat == 0) {
|
|
if (mpt->verbose >= MPT_PRT_DEBUG)
|
|
device_printf(mpt->dev,"Already released dma memory\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
|
|
bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
|
|
}
|
|
bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
|
|
bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
|
|
bus_dma_tag_destroy(mpt->request_dmat);
|
|
bus_dma_tag_destroy(mpt->buffer_dmat);
|
|
bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
|
|
bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
|
|
bus_dma_tag_destroy(mpt->reply_dmat);
|
|
bus_dma_tag_destroy(mpt->parent_dmat);
|
|
mpt->reply_dmat = 0;
|
|
free(mpt->request_pool, M_DEVBUF);
|
|
mpt->request_pool = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Reads modifiable (via PCI transactions) config registers */
|
|
static void
|
|
mpt_read_config_regs(struct mpt_softc *mpt)
|
|
{
|
|
mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
|
|
mpt->pci_cfg.LatencyTimer_LineSize =
|
|
pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
|
|
mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
|
|
mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
|
|
mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
|
|
mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
|
|
mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
|
|
mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
|
|
mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
|
|
mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
|
|
}
|
|
|
|
/* Sets modifiable config registers */
|
|
void
|
|
mpt_set_config_regs(struct mpt_softc *mpt)
|
|
{
|
|
uint32_t val;
|
|
|
|
#define MPT_CHECK(reg, offset, size) \
|
|
val = pci_read_config(mpt->dev, offset, size); \
|
|
if (mpt->pci_cfg.reg != val) { \
|
|
mpt_prt(mpt, \
|
|
"Restoring " #reg " to 0x%X from 0x%X\n", \
|
|
mpt->pci_cfg.reg, val); \
|
|
}
|
|
|
|
if (mpt->verbose >= MPT_PRT_DEBUG) {
|
|
MPT_CHECK(Command, PCIR_COMMAND, 2);
|
|
MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
|
|
MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
|
|
MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
|
|
MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
|
|
MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
|
|
MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
|
|
MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
|
|
MPT_CHECK(IntLine, PCIR_INTLINE, 1);
|
|
MPT_CHECK(PMCSR, 0x44, 4);
|
|
}
|
|
#undef MPT_CHECK
|
|
|
|
pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
|
|
pci_write_config(mpt->dev, PCIR_CACHELNSZ,
|
|
mpt->pci_cfg.LatencyTimer_LineSize, 2);
|
|
pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
|
|
pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
|
|
pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
|
|
pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
|
|
pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
|
|
pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
|
|
pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
|
|
pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
|
|
}
|
|
|
|
static void
|
|
mpt_pci_intr(void *arg)
|
|
{
|
|
struct mpt_softc *mpt;
|
|
|
|
mpt = (struct mpt_softc *)arg;
|
|
MPT_LOCK(mpt);
|
|
mpt_intr(mpt);
|
|
MPT_UNLOCK(mpt);
|
|
}
|