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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2018 Intel Corporation
*/
#include "ethdev_profile.h"
/**
* This conditional block enables Ethernet device profiling with
* Intel (R) VTune (TM) Amplifier.
*/
#ifdef RTE_ETHDEV_PROFILE_WITH_VTUNE
/**
* Hook callback to trace rte_eth_rx_burst() calls.
*/
uint16_t
profile_hook_rx_burst_cb(
__rte_unused uint16_t port_id, __rte_unused uint16_t queue_id,
__rte_unused struct rte_mbuf *pkts[], uint16_t nb_pkts,
__rte_unused uint16_t max_pkts, __rte_unused void *user_param)
{
return nb_pkts;
}
/**
* Setting profiling rx callback for a given Ethernet device.
* This function must be invoked when ethernet device is being configured.
*
* @param port_id
* The port identifier of the Ethernet device.
* @param rx_queue_num
* The number of RX queues on specified port.
*
* @return
* - On success, zero.
* - On failure, a negative value.
*/
static inline int
vtune_profile_rx_init(uint16_t port_id, uint8_t rx_queue_num)
{
uint16_t q_id;
for (q_id = 0; q_id < rx_queue_num; ++q_id) {
if (!rte_eth_add_rx_callback(
port_id, q_id, profile_hook_rx_burst_cb, NULL)) {
return -rte_errno;
}
}
return 0;
}
#endif /* RTE_ETHDEV_PROFILE_WITH_VTUNE */
int
__rte_eth_dev_profile_init(__rte_unused uint16_t port_id,
__rte_unused struct rte_eth_dev *dev)
{
#ifdef RTE_ETHDEV_PROFILE_WITH_VTUNE
return vtune_profile_rx_init(port_id, dev->data->nb_rx_queues);
#endif
return 0;
}
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