diff options
Diffstat (limited to 'src/dpdk_lib18/librte_kni/rte_kni_fifo.h')
-rwxr-xr-x | src/dpdk_lib18/librte_kni/rte_kni_fifo.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/src/dpdk_lib18/librte_kni/rte_kni_fifo.h b/src/dpdk_lib18/librte_kni/rte_kni_fifo.h deleted file mode 100755 index 8cb85873..00000000 --- a/src/dpdk_lib18/librte_kni/rte_kni_fifo.h +++ /dev/null @@ -1,93 +0,0 @@ -/*- - * 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. - */ - - - -/** - * Initializes the kni fifo structure - */ -static void -kni_fifo_init(struct rte_kni_fifo *fifo, unsigned size) -{ - /* Ensure size is power of 2 */ - if (size & (size - 1)) - rte_panic("KNI fifo size must be power of 2\n"); - - fifo->write = 0; - fifo->read = 0; - fifo->len = size; - fifo->elem_size = sizeof(void *); -} - -/** - * Adds num elements into the fifo. Return the number actually written - */ -static inline unsigned -kni_fifo_put(struct rte_kni_fifo *fifo, void **data, unsigned num) -{ - unsigned i = 0; - unsigned fifo_write = fifo->write; - unsigned fifo_read = fifo->read; - unsigned new_write = fifo_write; - - for (i = 0; i < num; i++) { - new_write = (new_write + 1) & (fifo->len - 1); - - if (new_write == fifo_read) - break; - fifo->buffer[fifo_write] = data[i]; - fifo_write = new_write; - } - fifo->write = fifo_write; - return i; -} - -/** - * Get up to num elements from the fifo. Return the number actully read - */ -static inline unsigned -kni_fifo_get(struct rte_kni_fifo *fifo, void **data, unsigned num) -{ - unsigned i = 0; - unsigned new_read = fifo->read; - unsigned fifo_write = fifo->write; - for (i = 0; i < num; i++) { - if (new_read == fifo_write) - break; - - data[i] = fifo->buffer[new_read]; - new_read = (new_read + 1) & (fifo->len - 1); - } - fifo->read = new_read; - return i; -} |