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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2016-2017 Cavium, Inc
*/
#ifndef _RTE_EVENTDEV_PMD_PCI_H_
#define _RTE_EVENTDEV_PMD_PCI_H_
/** @file
* RTE Eventdev PCI PMD APIs
*
* @note
* These API are from event PCI PMD only and user applications should not call
* them directly.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <string.h>
#include <rte_config.h>
#include <rte_eal.h>
#include <rte_lcore.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include "rte_eventdev_pmd.h"
typedef int (*eventdev_pmd_pci_callback_t)(struct rte_eventdev *dev);
/**
* @internal
* Wrapper for use by pci drivers as a .probe function to attach to a event
* interface.
*/
static inline int
rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv,
struct rte_pci_device *pci_dev,
size_t private_data_size,
eventdev_pmd_pci_callback_t devinit)
{
struct rte_eventdev *eventdev;
char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN];
int retval;
if (devinit == NULL)
return -EINVAL;
rte_pci_device_name(&pci_dev->addr, eventdev_name,
sizeof(eventdev_name));
eventdev = rte_event_pmd_allocate(eventdev_name,
pci_dev->device.numa_node);
if (eventdev == NULL)
return -ENOMEM;
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
eventdev->data->dev_private =
rte_zmalloc_socket(
"eventdev private structure",
private_data_size,
RTE_CACHE_LINE_SIZE,
rte_socket_id());
if (eventdev->data->dev_private == NULL)
rte_panic("Cannot allocate memzone for private "
"device data");
}
eventdev->dev = &pci_dev->device;
/* Invoke PMD device initialization function */
retval = devinit(eventdev);
if (retval == 0)
return 0;
RTE_EDEV_LOG_ERR("driver %s: (vendor_id=0x%x device_id=0x%x)"
" failed", pci_drv->driver.name,
(unsigned int) pci_dev->id.vendor_id,
(unsigned int) pci_dev->id.device_id);
rte_event_pmd_release(eventdev);
return -ENXIO;
}
/**
* @internal
* Wrapper for use by pci drivers as a .remove function to detach a event
* interface.
*/
static inline int
rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev,
eventdev_pmd_pci_callback_t devuninit)
{
struct rte_eventdev *eventdev;
char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN];
int ret = 0;
if (pci_dev == NULL)
return -EINVAL;
rte_pci_device_name(&pci_dev->addr, eventdev_name,
sizeof(eventdev_name));
eventdev = rte_event_pmd_get_named_dev(eventdev_name);
if (eventdev == NULL)
return -ENODEV;
ret = rte_event_dev_close(eventdev->data->dev_id);
if (ret < 0)
return ret;
/* Invoke PMD device un-init function */
if (devuninit)
ret = devuninit(eventdev);
if (ret)
return ret;
/* Free event device */
rte_event_pmd_release(eventdev);
eventdev->dev = NULL;
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /* _RTE_EVENTDEV_PMD_PCI_H_ */
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