7a33572057
The private headers are compiled internally with a C compiler. Thus extern "C" declaration is useless in such files. Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2016-2017 Cavium, Inc
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*/
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#ifndef _RTE_EVENTDEV_PMD_PCI_H_
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#define _RTE_EVENTDEV_PMD_PCI_H_
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/** @file
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* RTE Eventdev PCI PMD APIs
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*
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* @note
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* These API are from event PCI PMD only and user applications should not call
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* them directly.
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*/
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#include <string.h>
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#include <rte_config.h>
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#include <rte_eal.h>
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#include <rte_lcore.h>
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#include <rte_pci.h>
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#include <rte_bus_pci.h>
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#include "eventdev_pmd.h"
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typedef int (*eventdev_pmd_pci_callback_t)(struct rte_eventdev *dev);
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/**
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* @internal
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* Wrapper for use by pci drivers as a .probe function to attach to an event
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* interface. Same as rte_event_pmd_pci_probe, except caller can specify
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* the name.
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*/
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__rte_experimental
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static inline int
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rte_event_pmd_pci_probe_named(struct rte_pci_driver *pci_drv,
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struct rte_pci_device *pci_dev,
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size_t private_data_size,
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eventdev_pmd_pci_callback_t devinit,
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const char *name)
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{
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struct rte_eventdev *eventdev;
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int retval;
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if (devinit == NULL)
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return -EINVAL;
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eventdev = rte_event_pmd_allocate(name,
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pci_dev->device.numa_node);
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if (eventdev == NULL)
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return -ENOMEM;
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if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
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eventdev->data->dev_private =
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rte_zmalloc_socket(
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"eventdev private structure",
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private_data_size,
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RTE_CACHE_LINE_SIZE,
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rte_socket_id());
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if (eventdev->data->dev_private == NULL)
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rte_panic("Cannot allocate memzone for private "
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"device data");
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}
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eventdev->dev = &pci_dev->device;
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/* Invoke PMD device initialization function */
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retval = devinit(eventdev);
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if (retval == 0)
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return 0;
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RTE_EDEV_LOG_ERR("driver %s: (vendor_id=0x%x device_id=0x%x)"
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" failed", pci_drv->driver.name,
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(unsigned int) pci_dev->id.vendor_id,
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(unsigned int) pci_dev->id.device_id);
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rte_event_pmd_release(eventdev);
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return -ENXIO;
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}
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/**
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* @internal
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* Wrapper for use by pci drivers as a .probe function to attach to a event
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* interface.
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*/
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static inline int
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rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv,
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struct rte_pci_device *pci_dev,
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size_t private_data_size,
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eventdev_pmd_pci_callback_t devinit)
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{
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char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN];
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rte_pci_device_name(&pci_dev->addr, eventdev_name,
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sizeof(eventdev_name));
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return rte_event_pmd_pci_probe_named(pci_drv,
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pci_dev,
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private_data_size,
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devinit,
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eventdev_name);
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}
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/**
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* @internal
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* Wrapper for use by pci drivers as a .remove function to detach a event
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* interface.
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*/
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static inline int
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rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev,
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eventdev_pmd_pci_callback_t devuninit)
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{
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struct rte_eventdev *eventdev;
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char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN];
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int ret = 0;
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if (pci_dev == NULL)
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return -EINVAL;
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rte_pci_device_name(&pci_dev->addr, eventdev_name,
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sizeof(eventdev_name));
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eventdev = rte_event_pmd_get_named_dev(eventdev_name);
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if (eventdev == NULL)
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return -ENODEV;
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if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
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ret = rte_event_dev_close(eventdev->data->dev_id);
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if (ret < 0)
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return ret;
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}
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/* Invoke PMD device un-init function */
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if (devuninit)
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ret = devuninit(eventdev);
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if (ret)
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return ret;
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/* Free event device */
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rte_event_pmd_release(eventdev);
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eventdev->dev = NULL;
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return 0;
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}
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#endif /* _RTE_EVENTDEV_PMD_PCI_H_ */
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