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freebsd-dev/sys/dev/ips/ips_pci.c
John Baldwin 352176c8cb - Use the existing driver lock in cdevsw methods and remove D_NEEDGIANT. 
- Use callout(9) instead of timeout(9).
- Use bus_*() instead of bus_space_*().
- Don't check for a NULL softc in attach.

Tested by:	no one
2014-11-13 22:06:57 +00:00

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/*-
* Copyright (c) 2002 Adaptec Inc.
* All rights reserved.
*
* Written by: David Jeffery
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 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 AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dev/ips/ipsreg.h>
#include <dev/ips/ips.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
static int ips_pci_free(ips_softc_t *sc);
static void ips_intrhook(void *arg);
static int ips_pci_probe(device_t dev)
{
if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
device_set_desc(dev, "IBM ServeRAID Adapter");
return (BUS_PROBE_DEFAULT);
} else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
device_set_desc(dev, "IBM ServeRAID Adapter");
return (BUS_PROBE_DEFAULT);
} else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
(pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
device_set_desc(dev, "Adaptec ServeRAID Adapter");
return (BUS_PROBE_DEFAULT);
}
return(ENXIO);
}
static int ips_pci_attach(device_t dev)
{
ips_softc_t *sc;
DEVICE_PRINTF(1, dev, "in attach.\n");
sc = (ips_softc_t *)device_get_softc(dev);
sc->dev = dev;
mtx_init(&sc->queue_mtx, "IPS bioqueue lock", NULL, MTX_DEF);
sema_init(&sc->cmd_sema, 0, "IPS Command Semaphore");
callout_init_mtx(&sc->timer, &sc->queue_mtx, 0);
if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
sc->ips_adapter_reinit = ips_morpheus_reinit;
sc->ips_adapter_intr = ips_morpheus_intr;
sc->ips_issue_cmd = ips_issue_morpheus_cmd;
sc->ips_poll_cmd = ips_morpheus_poll;
} else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
sc->ips_adapter_reinit = ips_copperhead_reinit;
sc->ips_adapter_intr = ips_copperhead_intr;
sc->ips_issue_cmd = ips_issue_copperhead_cmd;
sc->ips_poll_cmd = ips_copperhead_poll;
} else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
sc->ips_adapter_reinit = ips_morpheus_reinit;
sc->ips_adapter_intr = ips_morpheus_intr;
sc->ips_issue_cmd = ips_issue_morpheus_cmd;
sc->ips_poll_cmd = ips_morpheus_poll;
} else
goto error;
/* make sure busmastering is on */
pci_enable_busmaster(dev);
/* setting up io space */
sc->iores = NULL;
PRINTF(10, "trying MEMIO\n");
if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
sc->rid = PCIR_BAR(1);
else
sc->rid = PCIR_BAR(0);
sc->iotype = SYS_RES_MEMORY;
sc->iores = bus_alloc_resource_any(dev, sc->iotype, &sc->rid,
RF_ACTIVE);
if(!sc->iores){
PRINTF(10, "trying PORTIO\n");
sc->rid = PCIR_BAR(0);
sc->iotype = SYS_RES_IOPORT;
sc->iores = bus_alloc_resource_any(dev, sc->iotype,
&sc->rid, RF_ACTIVE);
}
if(sc->iores == NULL){
device_printf(dev, "resource allocation failed\n");
return (ENXIO);
}
/*allocate an interrupt. when does the irq become active? after leaving attach? */
sc->irqrid = 0;
if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
device_printf(dev, "irq allocation failed\n");
goto error;
}
if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO|INTR_MPSAFE, NULL,
sc->ips_adapter_intr, sc, &sc->irqcookie)){
device_printf(dev, "irq setup failed\n");
goto error;
}
if (bus_dma_tag_create( /* PCI parent */bus_get_dma_tag(dev),
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* numsegs */ IPS_MAX_SG_ELEMENTS,
/* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&sc->adapter_dmatag) != 0) {
device_printf(dev, "can't alloc dma tag\n");
goto error;
}
sc->ips_ich.ich_func = ips_intrhook;
sc->ips_ich.ich_arg = sc;
bioq_init(&sc->queue);
if (config_intrhook_establish(&sc->ips_ich) != 0) {
printf("IPS can't establish configuration hook\n");
goto error;
}
return 0;
error:
ips_pci_free(sc);
return (ENXIO);
}
static void
ips_intrhook(void *arg)
{
struct ips_softc *sc = (struct ips_softc *)arg;
config_intrhook_disestablish(&sc->ips_ich);
if (ips_adapter_init(sc))
ips_pci_free(sc);
else
sc->configured = 1;
}
static int ips_pci_free(ips_softc_t *sc)
{
if(sc->adapter_dmatag)
bus_dma_tag_destroy(sc->adapter_dmatag);
if(sc->irqcookie)
bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
if(sc->irqres)
bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
if(sc->iores)
bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
sc->configured = 0;
mtx_destroy(&sc->queue_mtx);
sema_destroy(&sc->cmd_sema);
return 0;
}
static int ips_pci_detach(device_t dev)
{
ips_softc_t *sc;
DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
sc = (ips_softc_t *) device_get_softc(dev);
if (sc->configured) {
sc->configured = 0;
ips_flush_cache(sc);
if(ips_adapter_free(sc))
return EBUSY;
ips_pci_free(sc);
bioq_flush(&sc->queue, NULL, ENXIO);
}
return 0;
}
static int ips_pci_shutdown(device_t dev)
{
ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
if (sc->configured) {
ips_flush_cache(sc);
}
return 0;
}
static device_method_t ips_driver_methods[] = {
DEVMETHOD(device_probe, ips_pci_probe),
DEVMETHOD(device_attach, ips_pci_attach),
DEVMETHOD(device_detach, ips_pci_detach),
DEVMETHOD(device_shutdown, ips_pci_shutdown),
{0,0}
};
static driver_t ips_pci_driver = {
"ips",
ips_driver_methods,
sizeof(ips_softc_t),
};
static devclass_t ips_devclass;
DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
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