diff options
Diffstat (limited to 'src/dpdk_lib18/librte_port/rte_port_source_sink.c')
-rwxr-xr-x | src/dpdk_lib18/librte_port/rte_port_source_sink.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/dpdk_lib18/librte_port/rte_port_source_sink.c b/src/dpdk_lib18/librte_port/rte_port_source_sink.c new file mode 100755 index 00000000..b9a25bb0 --- /dev/null +++ b/src/dpdk_lib18/librte_port/rte_port_source_sink.c @@ -0,0 +1,158 @@ +/*- + * 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. + */ +#include <stdint.h> +#include <string.h> + +#include <rte_mbuf.h> +#include <rte_mempool.h> +#include <rte_malloc.h> + +#include "rte_port_source_sink.h" + +/* + * Port SOURCE + */ +struct rte_port_source { + struct rte_mempool *mempool; +}; + +static void * +rte_port_source_create(void *params, int socket_id) +{ + struct rte_port_source_params *p = + (struct rte_port_source_params *) params; + struct rte_port_source *port; + + /* Check input arguments*/ + if ((p == NULL) || (p->mempool == NULL)) { + RTE_LOG(ERR, PORT, "%s: Invalid params\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + RTE_CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->mempool = (struct rte_mempool *) p->mempool; + + return port; +} + +static int +rte_port_source_free(void *port) +{ + /* Check input parameters */ + if (port == NULL) + return 0; + + rte_free(port); + + return 0; +} + +static int +rte_port_source_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts) +{ + struct rte_port_source *p = (struct rte_port_source *) port; + + if (rte_mempool_get_bulk(p->mempool, (void **) pkts, n_pkts) != 0) + return 0; + + return n_pkts; +} + +/* + * Port SINK + */ +static void * +rte_port_sink_create(__rte_unused void *params, __rte_unused int socket_id) +{ + return (void *) 1; +} + +static int +rte_port_sink_tx(__rte_unused void *port, struct rte_mbuf *pkt) +{ + rte_pktmbuf_free(pkt); + + return 0; +} + +static int +rte_port_sink_tx_bulk(__rte_unused void *port, struct rte_mbuf **pkts, + uint64_t pkts_mask) +{ + if ((pkts_mask & (pkts_mask + 1)) == 0) { + uint64_t n_pkts = __builtin_popcountll(pkts_mask); + uint32_t i; + + for (i = 0; i < n_pkts; i++) { + struct rte_mbuf *pkt = pkts[i]; + + rte_pktmbuf_free(pkt); + } + } else { + for ( ; pkts_mask; ) { + uint32_t pkt_index = __builtin_ctzll(pkts_mask); + uint64_t pkt_mask = 1LLU << pkt_index; + struct rte_mbuf *pkt = pkts[pkt_index]; + + rte_pktmbuf_free(pkt); + pkts_mask &= ~pkt_mask; + } + } + + return 0; +} + +/* + * Summary of port operations + */ +struct rte_port_in_ops rte_port_source_ops = { + .f_create = rte_port_source_create, + .f_free = rte_port_source_free, + .f_rx = rte_port_source_rx, +}; + +struct rte_port_out_ops rte_port_sink_ops = { + .f_create = rte_port_sink_create, + .f_free = NULL, + .f_tx = rte_port_sink_tx, + .f_tx_bulk = rte_port_sink_tx_bulk, + .f_flush = NULL, +}; |