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/*-
* BSD LICENSE
*
* Copyright 2017 6WIND S.A.
* Copyright 2017 Mellanox.
*
* 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 6WIND S.A. 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 <rte_malloc.h>
#include "failsafe_private.h"
static int
fs_bus_init(struct rte_eth_dev *dev)
{
struct sub_device *sdev;
struct rte_devargs *da;
uint8_t i;
uint16_t j;
int ret;
FOREACH_SUBDEV(sdev, i, dev) {
if (sdev->state != DEV_PARSED)
continue;
da = &sdev->devargs;
ret = rte_eal_hotplug_add(da->bus->name,
da->name,
da->args);
if (ret) {
ERROR("sub_device %d probe failed %s%s%s", i,
rte_errno ? "(" : "",
rte_errno ? strerror(rte_errno) : "",
rte_errno ? ")" : "");
continue;
}
RTE_ETH_FOREACH_DEV(j) {
if (strcmp(rte_eth_devices[j].device->name,
da->name) == 0) {
ETH(sdev) = &rte_eth_devices[j];
break;
}
}
if (ETH(sdev) == NULL) {
ERROR("sub_device %d init went wrong", i);
return -ENODEV;
}
SUB_ID(sdev) = i;
sdev->fs_dev = dev;
sdev->dev = ETH(sdev)->device;
ETH(sdev)->state = RTE_ETH_DEV_DEFERRED;
sdev->state = DEV_PROBED;
}
return 0;
}
int
failsafe_eal_init(struct rte_eth_dev *dev)
{
int ret;
ret = fs_bus_init(dev);
if (ret)
return ret;
if (PRIV(dev)->state < DEV_PROBED)
PRIV(dev)->state = DEV_PROBED;
fs_switch_dev(dev, NULL);
return 0;
}
static int
fs_bus_uninit(struct rte_eth_dev *dev)
{
struct sub_device *sdev = NULL;
uint8_t i;
int sdev_ret;
int ret = 0;
FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
sdev_ret = rte_eal_hotplug_remove(sdev->bus->name,
sdev->dev->name);
if (sdev_ret) {
ERROR("Failed to remove requested device %s (err: %d)",
sdev->dev->name, sdev_ret);
continue;
}
sdev->state = DEV_PROBED - 1;
}
return ret;
}
int
failsafe_eal_uninit(struct rte_eth_dev *dev)
{
int ret;
ret = fs_bus_uninit(dev);
PRIV(dev)->state = DEV_PROBED - 1;
return ret;
}
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