a6a5f4b48b
Currently rte_mcp_ptr_list is being shared as a variable across libs. This is only used in control path. This patch change it to a exported function based access. Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com> Acked-by: Ray Kinsella <mdr@ashroe.eu>
114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright 2017 NXP
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*
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <rte_malloc.h>
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#include <rte_memcpy.h>
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#include <rte_string_fns.h>
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#include <rte_cycles.h>
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#include <rte_kvargs.h>
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#include <rte_dev.h>
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#include <rte_ethdev_driver.h>
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#include <rte_fslmc.h>
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#include <mc/fsl_dpcon.h>
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#include <portal/dpaa2_hw_pvt.h>
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#include "dpaa2_eventdev.h"
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#include "dpaa2_eventdev_logs.h"
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TAILQ_HEAD(dpcon_dev_list, dpaa2_dpcon_dev);
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static struct dpcon_dev_list dpcon_dev_list
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= TAILQ_HEAD_INITIALIZER(dpcon_dev_list); /*!< DPCON device list */
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static int
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rte_dpaa2_create_dpcon_device(int dev_fd __rte_unused,
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struct vfio_device_info *obj_info __rte_unused,
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int dpcon_id)
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{
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struct dpaa2_dpcon_dev *dpcon_node;
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struct dpcon_attr attr;
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int ret;
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/* Allocate DPAA2 dpcon handle */
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dpcon_node = rte_malloc(NULL, sizeof(struct dpaa2_dpcon_dev), 0);
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if (!dpcon_node) {
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DPAA2_EVENTDEV_ERR(
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"Memory allocation failed for dpcon device");
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return -1;
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}
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/* Open the dpcon object */
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dpcon_node->dpcon.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
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ret = dpcon_open(&dpcon_node->dpcon,
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CMD_PRI_LOW, dpcon_id, &dpcon_node->token);
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if (ret) {
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DPAA2_EVENTDEV_ERR("Unable to open dpcon device: err(%d)",
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ret);
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rte_free(dpcon_node);
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return -1;
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}
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/* Get the device attributes */
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ret = dpcon_get_attributes(&dpcon_node->dpcon,
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CMD_PRI_LOW, dpcon_node->token, &attr);
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if (ret != 0) {
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DPAA2_EVENTDEV_ERR("dpcon attribute fetch failed: err(%d)",
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ret);
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rte_free(dpcon_node);
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return -1;
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}
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/* Updating device specific private information*/
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dpcon_node->qbman_ch_id = attr.qbman_ch_id;
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dpcon_node->num_priorities = attr.num_priorities;
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dpcon_node->dpcon_id = dpcon_id;
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rte_atomic16_init(&dpcon_node->in_use);
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TAILQ_INSERT_TAIL(&dpcon_dev_list, dpcon_node, next);
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return 0;
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}
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struct dpaa2_dpcon_dev *rte_dpaa2_alloc_dpcon_dev(void)
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{
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struct dpaa2_dpcon_dev *dpcon_dev = NULL;
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/* Get DPCON dev handle from list using index */
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TAILQ_FOREACH(dpcon_dev, &dpcon_dev_list, next) {
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if (dpcon_dev && rte_atomic16_test_and_set(&dpcon_dev->in_use))
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break;
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}
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return dpcon_dev;
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}
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void rte_dpaa2_free_dpcon_dev(struct dpaa2_dpcon_dev *dpcon)
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{
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struct dpaa2_dpcon_dev *dpcon_dev = NULL;
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/* Match DPCON handle and mark it free */
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TAILQ_FOREACH(dpcon_dev, &dpcon_dev_list, next) {
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if (dpcon_dev == dpcon) {
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rte_atomic16_dec(&dpcon_dev->in_use);
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return;
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}
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}
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}
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static struct rte_dpaa2_object rte_dpaa2_dpcon_obj = {
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.dev_type = DPAA2_CON,
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.create = rte_dpaa2_create_dpcon_device,
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};
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RTE_PMD_REGISTER_DPAA2_OBJECT(dpcon, rte_dpaa2_dpcon_obj);
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