From: Cristian Dumitrescu Date: Wed, 4 Jun 2014 18:08:25 +0000 (+0100) Subject: port: source and sink X-Git-Tag: spdx-start~10695 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=ef3403fb6f9a;p=dpdk.git port: source and sink Source port is a packet generator, similar to /dev/zero Linux device. Sink port is a packet terminator (drops all input packets), similar to /dev/null Linux device. Signed-off-by: Cristian Dumitrescu Acked-by: Pablo de Lara Guarch Acked by: Ivan Boule --- diff --git a/doc/doxy-api-index.md b/doc/doxy-api-index.md index f200240667..765729a0ac 100644 --- a/doc/doxy-api-index.md +++ b/doc/doxy-api-index.md @@ -107,6 +107,7 @@ There are many libraries, so their headers may be grouped by topics: [frag] (@ref rte_port_frag.h), [reass] (@ref rte_port_ras.h), [sched] (@ref rte_port_sched.h), + [src/sink] (@ref rte_port_source_sink.h) - **basic**: [approx fraction] (@ref rte_approx.h), diff --git a/lib/librte_port/Makefile b/lib/librte_port/Makefile index a10421672e..28793a5d8c 100644 --- a/lib/librte_port/Makefile +++ b/lib/librte_port/Makefile @@ -51,6 +51,7 @@ endif SRCS-$(CONFIG_RTE_LIBRTE_PORT) += rte_port_ras.c endif SRCS-$(CONFIG_RTE_LIBRTE_PORT) += rte_port_sched.c +SRCS-$(CONFIG_RTE_LIBRTE_PORT) += rte_port_source_sink.c # install includes SYMLINK-$(CONFIG_RTE_LIBRTE_PORT)-include += rte_port.h @@ -63,6 +64,7 @@ endif SYMLINK-$(CONFIG_RTE_LIBRTE_PORT)-include += rte_port_ras.h endif SYMLINK-$(CONFIG_RTE_LIBRTE_PORT)-include += rte_port_sched.h +SYMLINK-$(CONFIG_RTE_LIBRTE_PORT)-include += rte_port_source_sink.h # this lib depends upon: DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) := lib/librte_eal diff --git a/lib/librte_port/rte_port_source_sink.c b/lib/librte_port/rte_port_source_sink.c new file mode 100644 index 0000000000..23e3878c45 --- /dev/null +++ b/lib/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 +#include + +#include +#include +#include + +#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), + 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, +}; diff --git a/lib/librte_port/rte_port_source_sink.h b/lib/librte_port/rte_port_source_sink.h new file mode 100644 index 0000000000..0f9be7997e --- /dev/null +++ b/lib/librte_port/rte_port_source_sink.h @@ -0,0 +1,70 @@ +/*- + * 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 __INCLUDE_RTE_PORT_SOURCE_SINK_H__ +#define __INCLUDE_RTE_PORT_SOURCE_SINK_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file + * RTE Port Source/Sink + * + * source: input port that can be used to generate packets + * sink: output port that drops all packets written to it + * + ***/ + +#include "rte_port.h" + +/** source port parameters */ +struct rte_port_source_params { + /** Pre-initialized buffer pool */ + struct rte_mempool *mempool; +}; + +/** source port operations */ +extern struct rte_port_in_ops rte_port_source_ops; + +/** sink port parameters: NONE */ + +/** sink port operations */ +extern struct rte_port_out_ops rte_port_sink_ops; + +#ifdef __cplusplus +} +#endif + +#endif