e2e050c8ef
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
256 lines
6.2 KiB
C
256 lines
6.2 KiB
C
/*-
|
|
* Copyright (C) 2018 Justin Hibbits
|
|
*
|
|
* 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 ``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 TOOLS GMBH 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 <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kthread.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/selinfo.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <sys/ipmi.h>
|
|
#include <dev/ipmi/ipmivars.h>
|
|
|
|
#include <powerpc/powernv/opal.h>
|
|
|
|
struct opal_ipmi_softc {
|
|
struct ipmi_softc ipmi;
|
|
uint64_t sc_interface;
|
|
struct opal_ipmi_msg *sc_msg; /* Protected by IPMI lock */
|
|
};
|
|
|
|
static MALLOC_DEFINE(M_IPMI, "ipmi", "OPAL IPMI");
|
|
|
|
static int
|
|
opal_ipmi_polled_request(struct opal_ipmi_softc *sc, struct ipmi_request *req,
|
|
int timo)
|
|
{
|
|
uint64_t msg_len;
|
|
int err;
|
|
|
|
/* Construct and send the message. */
|
|
sc->sc_msg->version = OPAL_IPMI_MSG_FORMAT_VERSION_1;
|
|
sc->sc_msg->netfn = req->ir_addr;
|
|
sc->sc_msg->cmd = req->ir_command;
|
|
|
|
if (req->ir_requestlen > IPMI_MAX_RX) {
|
|
err = ENOMEM;
|
|
goto out;
|
|
}
|
|
memcpy(sc->sc_msg->data, req->ir_request, req->ir_requestlen);
|
|
|
|
msg_len = sizeof(*sc->sc_msg) + req->ir_requestlen;
|
|
err = opal_call(OPAL_IPMI_SEND, sc->sc_interface, vtophys(sc->sc_msg),
|
|
msg_len);
|
|
switch (err) {
|
|
case OPAL_SUCCESS:
|
|
break;
|
|
case OPAL_PARAMETER:
|
|
err = EINVAL;
|
|
goto out;
|
|
case OPAL_HARDWARE:
|
|
err = EIO;
|
|
goto out;
|
|
case OPAL_UNSUPPORTED:
|
|
err = EINVAL;
|
|
goto out;
|
|
case OPAL_RESOURCE:
|
|
err = ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
timo *= 10; /* Timeout is in milliseconds, we delay in 100us */
|
|
do {
|
|
msg_len = sizeof(struct opal_ipmi_msg) + IPMI_MAX_RX;
|
|
/* Crank the OPAL state machine while we poll for a reply. */
|
|
opal_call(OPAL_POLL_EVENTS, NULL);
|
|
err = opal_call(OPAL_IPMI_RECV, sc->sc_interface,
|
|
vtophys(sc->sc_msg), vtophys(&msg_len));
|
|
if (err != OPAL_EMPTY)
|
|
break;
|
|
DELAY(100);
|
|
} while (err == OPAL_EMPTY && timo-- != 0);
|
|
|
|
switch (err) {
|
|
case OPAL_SUCCESS:
|
|
/* Subtract one extra for the completion code. */
|
|
req->ir_replylen = msg_len - sizeof(struct opal_ipmi_msg) - 1;
|
|
req->ir_replylen = min(req->ir_replylen, req->ir_replybuflen);
|
|
memcpy(req->ir_reply, &sc->sc_msg->data[1], req->ir_replylen);
|
|
req->ir_compcode = sc->sc_msg->data[0];
|
|
err = 0;
|
|
break;
|
|
case OPAL_RESOURCE:
|
|
err = ENOMEM;
|
|
break;
|
|
case OPAL_EMPTY:
|
|
err = EAGAIN;
|
|
break;
|
|
default:
|
|
err = EIO;
|
|
break;
|
|
}
|
|
|
|
out:
|
|
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
opal_ipmi_probe(device_t dev)
|
|
{
|
|
if (!ofw_bus_is_compatible(dev, "ibm,opal-ipmi"))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "OPAL IPMI System Interface");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static void
|
|
opal_ipmi_loop(void *arg)
|
|
{
|
|
struct opal_ipmi_softc *sc = arg;
|
|
struct ipmi_request *req;
|
|
int i, ok;
|
|
|
|
IPMI_LOCK(&sc->ipmi);
|
|
while ((req = ipmi_dequeue_request(&sc->ipmi)) != NULL) {
|
|
IPMI_UNLOCK(&sc->ipmi);
|
|
ok = 0;
|
|
for (i = 0; i < 3 && !ok; i++) {
|
|
IPMI_IO_LOCK(&sc->ipmi);
|
|
ok = opal_ipmi_polled_request(sc, req, MAX_TIMEOUT);
|
|
IPMI_IO_UNLOCK(&sc->ipmi);
|
|
}
|
|
if (ok)
|
|
req->ir_error = 0;
|
|
else
|
|
req->ir_error = EIO;
|
|
IPMI_LOCK(&sc->ipmi);
|
|
ipmi_complete_request(&sc->ipmi, req);
|
|
}
|
|
IPMI_UNLOCK(&sc->ipmi);
|
|
kproc_exit(0);
|
|
}
|
|
|
|
static int
|
|
opal_ipmi_startup(struct ipmi_softc *sc)
|
|
{
|
|
|
|
return (kproc_create(opal_ipmi_loop, sc, &sc->ipmi_kthread, 0, 0,
|
|
"%s: opal", device_get_nameunit(sc->ipmi_dev)));
|
|
}
|
|
|
|
static int
|
|
opal_ipmi_driver_request(struct ipmi_softc *isc, struct ipmi_request *req,
|
|
int timo)
|
|
{
|
|
struct opal_ipmi_softc *sc = (struct opal_ipmi_softc *)isc;
|
|
int i, err;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
IPMI_LOCK(&sc->ipmi);
|
|
err = opal_ipmi_polled_request(sc, req, timo);
|
|
IPMI_UNLOCK(&sc->ipmi);
|
|
if (err == 0)
|
|
break;
|
|
}
|
|
|
|
req->ir_error = err;
|
|
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
opal_ipmi_attach(device_t dev)
|
|
{
|
|
struct opal_ipmi_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (OF_getencprop(ofw_bus_get_node(dev), "ibm,ipmi-interface-id",
|
|
(pcell_t*)&sc->sc_interface, sizeof(sc->sc_interface)) < 0) {
|
|
device_printf(dev, "Missing interface id\n");
|
|
return (ENXIO);
|
|
}
|
|
sc->ipmi.ipmi_startup = opal_ipmi_startup;
|
|
sc->ipmi.ipmi_driver_request = opal_ipmi_driver_request;
|
|
sc->ipmi.ipmi_enqueue_request = ipmi_polled_enqueue_request;
|
|
sc->ipmi.ipmi_driver_requests_polled = 1;
|
|
sc->ipmi.ipmi_dev = dev;
|
|
|
|
sc->sc_msg = malloc(sizeof(struct opal_ipmi_msg) + IPMI_MAX_RX, M_IPMI,
|
|
M_WAITOK | M_ZERO);
|
|
|
|
return (ipmi_attach(dev));
|
|
}
|
|
|
|
static int
|
|
opal_ipmi_detach(device_t dev)
|
|
{
|
|
struct opal_ipmi_softc *sc;
|
|
int err;
|
|
|
|
sc = device_get_softc(dev);
|
|
err = ipmi_detach(dev);
|
|
if (err == 0)
|
|
free(sc->sc_msg, M_IPMI);
|
|
|
|
return (err);
|
|
}
|
|
|
|
static device_method_t opal_ipmi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, opal_ipmi_probe),
|
|
DEVMETHOD(device_attach, opal_ipmi_attach),
|
|
DEVMETHOD(device_detach, opal_ipmi_detach),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t opal_ipmi_driver = {
|
|
"ipmi",
|
|
opal_ipmi_methods,
|
|
sizeof(struct opal_ipmi_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(opal_ipmi, opal, opal_ipmi_driver, ipmi_devclass, NULL, NULL);
|