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-rw-r--r--drivers/net/ring/rte_eth_ring.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/net/ring/rte_eth_ring.h b/drivers/net/ring/rte_eth_ring.h
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+++ b/drivers/net/ring/rte_eth_ring.h
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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_ETH_RING_H_
+#define _RTE_ETH_RING_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_ring.h>
+
+/**
+ * Create a new ethdev port from a set of rings
+ *
+ * @param name
+ * name to be given to the new ethdev port
+ * @param rx_queues
+ * pointer to array of rte_rings to be used as RX queues
+ * @param nb_rx_queues
+ * number of elements in the rx_queues array
+ * @param tx_queues
+ * pointer to array of rte_rings to be used as TX queues
+ * @param nb_tx_queues
+ * number of elements in the tx_queues array
+ * @param numa_node
+ * the numa node on which the memory for this port is to be allocated
+ * @return
+ * the port number of the newly created the ethdev or -1 on error.
+ */
+int rte_eth_from_rings(const char *name,
+ struct rte_ring * const rx_queues[],
+ const unsigned nb_rx_queues,
+ struct rte_ring *const tx_queues[],
+ const unsigned nb_tx_queues,
+ const unsigned numa_node);
+
+/**
+ * Create a new ethdev port from a ring
+ *
+ * This function is a shortcut call for rte_eth_from_rings for the
+ * case where one wants to take a single rte_ring and use it as though
+ * it were an ethdev
+ *
+ * @param ring
+ * the ring to be used as an ethdev
+ * @return
+ * the port number of the newly created ethdev, or -1 on error
+ */
+int rte_eth_from_ring(struct rte_ring *r);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif