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/*-
* BSD LICENSE
*
* Copyright 2017 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 <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
#include <rte_string_fns.h>
#include <rte_cycles.h>
#include <rte_kvargs.h>
#include <rte_dev.h>
#include <rte_ethdev.h>
#include <fslmc_vfio.h>
#include <mc/fsl_dpcon.h>
#include <portal/dpaa2_hw_pvt.h>
#include "dpaa2_eventdev.h"
TAILQ_HEAD(dpcon_dev_list, dpaa2_dpcon_dev);
static struct dpcon_dev_list dpcon_dev_list
= TAILQ_HEAD_INITIALIZER(dpcon_dev_list); /*!< DPCON device list */
static int
rte_dpaa2_create_dpcon_device(struct fslmc_vfio_device *vdev __rte_unused,
struct vfio_device_info *obj_info __rte_unused,
int dpcon_id)
{
struct dpaa2_dpcon_dev *dpcon_node;
struct dpcon_attr attr;
int ret;
/* Allocate DPAA2 dpcon handle */
dpcon_node = rte_malloc(NULL, sizeof(struct dpaa2_dpcon_dev), 0);
if (!dpcon_node) {
PMD_DRV_LOG(ERR, "Memory allocation failed for DPCON Device");
return -1;
}
/* Open the dpcon object */
dpcon_node->dpcon.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
ret = dpcon_open(&dpcon_node->dpcon,
CMD_PRI_LOW, dpcon_id, &dpcon_node->token);
if (ret) {
PMD_DRV_LOG(ERR, "Resource alloc failure with err code: %d",
ret);
rte_free(dpcon_node);
return -1;
}
/* Get the device attributes */
ret = dpcon_get_attributes(&dpcon_node->dpcon,
CMD_PRI_LOW, dpcon_node->token, &attr);
if (ret != 0) {
PMD_DRV_LOG(ERR, "Reading device failed with err code: %d",
ret);
rte_free(dpcon_node);
return -1;
}
/* Updating device specific private information*/
dpcon_node->qbman_ch_id = attr.qbman_ch_id;
dpcon_node->num_priorities = attr.num_priorities;
dpcon_node->dpcon_id = dpcon_id;
rte_atomic16_init(&dpcon_node->in_use);
TAILQ_INSERT_TAIL(&dpcon_dev_list, dpcon_node, next);
PMD_DRV_LOG(DEBUG, "DPAA2: Added [dpcon.%d]", dpcon_id);
return 0;
}
struct dpaa2_dpcon_dev *rte_dpaa2_alloc_dpcon_dev(void)
{
struct dpaa2_dpcon_dev *dpcon_dev = NULL;
/* Get DPCON dev handle from list using index */
TAILQ_FOREACH(dpcon_dev, &dpcon_dev_list, next) {
if (dpcon_dev && rte_atomic16_test_and_set(&dpcon_dev->in_use))
break;
}
return dpcon_dev;
}
void rte_dpaa2_free_dpcon_dev(struct dpaa2_dpcon_dev *dpcon)
{
struct dpaa2_dpcon_dev *dpcon_dev = NULL;
/* Match DPCON handle and mark it free */
TAILQ_FOREACH(dpcon_dev, &dpcon_dev_list, next) {
if (dpcon_dev == dpcon) {
rte_atomic16_dec(&dpcon_dev->in_use);
return;
}
}
}
static struct rte_dpaa2_object rte_dpaa2_dpcon_obj = {
.object_id = DPAA2_MC_DPCON_DEVID,
.create = rte_dpaa2_create_dpcon_device,
};
RTE_PMD_REGISTER_DPAA2_OBJECT(dpcon, rte_dpaa2_dpcon_obj);
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