f3a0daf347
Add a one-parameter function to take an existing rte_ring and wrap it as an ethdev, returning the port id of the new ethdev instance. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTE_ETH_RING_H_
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#define _RTE_ETH_RING_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rte_ring.h>
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/**
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* Create a new ethdev port from a set of rings
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*
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* @param name
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* name to be given to the new ethdev port
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* @param rx_queues
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* pointer to array of rte_rings to be used as RX queues
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* @param nb_rx_queues
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* number of elements in the rx_queues array
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* @param tx_queues
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* pointer to array of rte_rings to be used as TX queues
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* @param nb_tx_queues
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* number of elements in the tx_queues array
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* @param numa_node
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* the numa node on which the memory for this port is to be allocated
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* @return
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* the port number of the newly created the ethdev or -1 on error.
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*/
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int rte_eth_from_rings(const char *name,
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struct rte_ring * const rx_queues[],
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const unsigned nb_rx_queues,
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struct rte_ring *const tx_queues[],
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const unsigned nb_tx_queues,
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const unsigned numa_node);
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/**
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* Create a new ethdev port from a ring
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*
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* This function is a shortcut call for rte_eth_from_rings for the
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* case where one wants to take a single rte_ring and use it as though
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* it were an ethdev
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*
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* @param ring
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* the ring to be used as an ethdev
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* @return
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* the port number of the newly created ethdev, or -1 on error
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*/
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int rte_eth_from_ring(struct rte_ring *r);
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#ifdef __cplusplus
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}
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#endif
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#endif
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