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/*-
* BSD LICENSE
*
* Copyright 2016 NXP.
*
* 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 NXP 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 <string.h>
#include <dirent.h>
#include <stdbool.h>
#include <rte_log.h>
#include <rte_bus.h>
#include <rte_eal_memconfig.h>
#include <rte_malloc.h>
#include <rte_devargs.h>
#include <rte_memcpy.h>
#include <rte_ethdev.h>
#include "rte_fslmc.h"
#include "fslmc_vfio.h"
#define FSLMC_BUS_LOG(level, fmt, args...) \
RTE_LOG(level, EAL, "%s(): " fmt "\n", __func__, ##args)
struct rte_fslmc_bus rte_fslmc_bus;
static int
rte_fslmc_scan(void)
{
int ret;
ret = fslmc_vfio_setup_group();
if (ret) {
FSLMC_BUS_LOG(ERR, "fslmc: Unable to setup VFIO");
return ret;
}
ret = fslmc_vfio_process_group();
if (ret) {
FSLMC_BUS_LOG(ERR, "fslmc: Unable to setup devices");
return -1;
}
RTE_LOG(INFO, EAL, "fslmc: Bus scan completed\n");
return 0;
}
static int
rte_fslmc_match(struct rte_dpaa2_driver *dpaa2_drv,
struct rte_dpaa2_device *dpaa2_dev)
{
if (dpaa2_drv->drv_type == dpaa2_dev->dev_type)
return 0;
return 1;
}
static int
rte_fslmc_probe(void)
{
int ret = 0;
struct rte_dpaa2_device *dev;
struct rte_dpaa2_driver *drv;
TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
TAILQ_FOREACH(drv, &rte_fslmc_bus.driver_list, next) {
ret = rte_fslmc_match(drv, dev);
if (ret)
continue;
if (!drv->probe)
continue;
ret = drv->probe(drv, dev);
if (ret)
FSLMC_BUS_LOG(ERR, "Unable to probe.\n");
break;
}
}
return ret;
}
static struct rte_device *
rte_fslmc_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
const void *data)
{
struct rte_dpaa2_device *dev;
TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
if (start && &dev->device == start) {
start = NULL; /* starting point found */
continue;
}
if (cmp(&dev->device, data) == 0)
return &dev->device;
}
return NULL;
}
/*register a fslmc bus based dpaa2 driver */
void
rte_fslmc_driver_register(struct rte_dpaa2_driver *driver)
{
RTE_VERIFY(driver);
TAILQ_INSERT_TAIL(&rte_fslmc_bus.driver_list, driver, next);
/* Update Bus references */
driver->fslmc_bus = &rte_fslmc_bus;
}
/*un-register a fslmc bus based dpaa2 driver */
void
rte_fslmc_driver_unregister(struct rte_dpaa2_driver *driver)
{
struct rte_fslmc_bus *fslmc_bus;
fslmc_bus = driver->fslmc_bus;
TAILQ_REMOVE(&fslmc_bus->driver_list, driver, next);
/* Update Bus references */
driver->fslmc_bus = NULL;
}
struct rte_fslmc_bus rte_fslmc_bus = {
.bus = {
.scan = rte_fslmc_scan,
.probe = rte_fslmc_probe,
.find_device = rte_fslmc_find_device,
},
.device_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.device_list),
.driver_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.driver_list),
};
RTE_REGISTER_BUS(fslmc, rte_fslmc_bus.bus);
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