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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright 2017 NXP
*
*/
#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_driver.h>
#include <fslmc_logs.h>
#include <rte_fslmc.h>
#include <mc/fsl_dpci.h>
#include "portal/dpaa2_hw_pvt.h"
#include "portal/dpaa2_hw_dpio.h"
TAILQ_HEAD(dpci_dev_list, dpaa2_dpci_dev);
static struct dpci_dev_list dpci_dev_list
= TAILQ_HEAD_INITIALIZER(dpci_dev_list); /*!< DPCI device list */
static int
rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
struct vfio_device_info *obj_info __rte_unused,
int dpci_id)
{
struct dpaa2_dpci_dev *dpci_node;
struct dpci_attr attr;
struct dpci_rx_queue_cfg rx_queue_cfg;
struct dpci_rx_queue_attr rx_attr;
int ret, i;
/* Allocate DPAA2 dpci handle */
dpci_node = rte_malloc(NULL, sizeof(struct dpaa2_dpci_dev), 0);
if (!dpci_node) {
PMD_INIT_LOG(ERR, "Memory allocation failed for DPCI Device");
return -1;
}
/* Open the dpci object */
dpci_node->dpci.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
ret = dpci_open(&dpci_node->dpci,
CMD_PRI_LOW, dpci_id, &dpci_node->token);
if (ret) {
PMD_INIT_LOG(ERR, "Resource alloc failure with err code: %d",
ret);
rte_free(dpci_node);
return -1;
}
/* Get the device attributes */
ret = dpci_get_attributes(&dpci_node->dpci,
CMD_PRI_LOW, dpci_node->token, &attr);
if (ret != 0) {
PMD_INIT_LOG(ERR, "Reading device failed with err code: %d",
ret);
rte_free(dpci_node);
return -1;
}
/* Set up the Rx Queue */
memset(&rx_queue_cfg, 0, sizeof(struct dpci_rx_queue_cfg));
ret = dpci_set_rx_queue(&dpci_node->dpci,
CMD_PRI_LOW,
dpci_node->token,
0, &rx_queue_cfg);
if (ret) {
PMD_INIT_LOG(ERR, "Setting Rx queue failed with err code: %d",
ret);
rte_free(dpci_node);
return -1;
}
/* Enable the device */
ret = dpci_enable(&dpci_node->dpci,
CMD_PRI_LOW, dpci_node->token);
if (ret != 0) {
PMD_INIT_LOG(ERR, "Enabling device failed with err code: %d",
ret);
rte_free(dpci_node);
return -1;
}
for (i = 0; i < DPAA2_DPCI_MAX_QUEUES; i++) {
/* Get the Rx FQID's */
ret = dpci_get_rx_queue(&dpci_node->dpci,
CMD_PRI_LOW,
dpci_node->token, i,
&rx_attr);
if (ret != 0) {
PMD_INIT_LOG(ERR,
"Reading device failed with err code: %d",
ret);
rte_free(dpci_node);
return -1;
}
dpci_node->queue[i].fqid = rx_attr.fqid;
}
dpci_node->dpci_id = dpci_id;
rte_atomic16_init(&dpci_node->in_use);
TAILQ_INSERT_TAIL(&dpci_dev_list, dpci_node, next);
RTE_LOG(DEBUG, PMD, "DPAA2: Added [dpci.%d]\n", dpci_id);
return 0;
}
struct dpaa2_dpci_dev *rte_dpaa2_alloc_dpci_dev(void)
{
struct dpaa2_dpci_dev *dpci_dev = NULL;
/* Get DPCI dev handle from list using index */
TAILQ_FOREACH(dpci_dev, &dpci_dev_list, next) {
if (dpci_dev && rte_atomic16_test_and_set(&dpci_dev->in_use))
break;
}
return dpci_dev;
}
void rte_dpaa2_free_dpci_dev(struct dpaa2_dpci_dev *dpci)
{
struct dpaa2_dpci_dev *dpci_dev = NULL;
/* Match DPCI handle and mark it free */
TAILQ_FOREACH(dpci_dev, &dpci_dev_list, next) {
if (dpci_dev == dpci) {
rte_atomic16_dec(&dpci_dev->in_use);
return;
}
}
}
static struct rte_dpaa2_object rte_dpaa2_dpci_obj = {
.dev_type = DPAA2_CI,
.create = rte_dpaa2_create_dpci_device,
};
RTE_PMD_REGISTER_DPAA2_OBJECT(dpci, rte_dpaa2_dpci_obj);
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