70e58cf74c
Add support for using VFIO for dpaa2 based fsl-mc bus. There are some differences in the way vfio used for fsl-mc bus from the eal vfio. - The scanning of bus for individual objects on the basis of the DPRC container. - The use and mapping of MC portal for object access With the evolution of bus model, they can be further aligned with eal vfio code. Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright (c) 2016 NXP. 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 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 <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;
|
|
}
|
|
|
|
/*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,
|
|
},
|
|
.device_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.device_list),
|
|
.driver_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.driver_list),
|
|
};
|
|
|
|
RTE_REGISTER_BUS(FSLMC_BUS_NAME, rte_fslmc_bus.bus);
|