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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* Copyright(c) 2014 6WIND S.A.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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 <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <sys/queue.h>
#include <rte_dev.h>
#include <rte_devargs.h>
#include <rte_debug.h>
#include <rte_devargs.h>
#include <rte_log.h>
#include "eal_private.h"
/** Global list of device drivers. */
static struct rte_driver_list dev_driver_list =
TAILQ_HEAD_INITIALIZER(dev_driver_list);
/** Global list of device drivers. */
static struct rte_device_list dev_device_list =
TAILQ_HEAD_INITIALIZER(dev_device_list);
/* register a driver */
void
rte_eal_driver_register(struct rte_driver *driver)
{
TAILQ_INSERT_TAIL(&dev_driver_list, driver, next);
}
/* unregister a driver */
void
rte_eal_driver_unregister(struct rte_driver *driver)
{
TAILQ_REMOVE(&dev_driver_list, driver, next);
}
void rte_eal_device_insert(struct rte_device *dev)
{
TAILQ_INSERT_TAIL(&dev_device_list, dev, next);
}
void rte_eal_device_remove(struct rte_device *dev)
{
TAILQ_REMOVE(&dev_device_list, dev, next);
}
int
rte_eal_dev_init(void)
{
struct rte_devargs *devargs;
/*
* Note that the dev_driver_list is populated here
* from calls made to rte_eal_driver_register from constructor functions
* embedded into PMD modules via the RTE_PMD_REGISTER_VDEV macro
*/
/* call the init function for each virtual device */
TAILQ_FOREACH(devargs, &devargs_list, next) {
if (devargs->type != RTE_DEVTYPE_VIRTUAL)
continue;
if (rte_eal_vdev_init(devargs->virt.drv_name,
devargs->args)) {
RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
devargs->virt.drv_name);
return -1;
}
}
return 0;
}
int rte_eal_dev_attach(const char *name, const char *devargs)
{
struct rte_pci_addr addr;
if (name == NULL || devargs == NULL) {
RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
return -EINVAL;
}
if (eal_parse_pci_DomBDF(name, &addr) == 0) {
if (rte_eal_pci_probe_one(&addr) < 0)
goto err;
} else {
if (rte_eal_vdev_init(name, devargs))
goto err;
}
return 0;
err:
RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
return -EINVAL;
}
int rte_eal_dev_detach(const char *name)
{
struct rte_pci_addr addr;
if (name == NULL) {
RTE_LOG(ERR, EAL, "Invalid device provided.\n");
return -EINVAL;
}
if (eal_parse_pci_DomBDF(name, &addr) == 0) {
if (rte_eal_pci_detach(&addr) < 0)
goto err;
} else {
if (rte_eal_vdev_uninit(name))
goto err;
}
return 0;
err:
RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);
return -EINVAL;
}
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