DPDK  17.11.10
examples/ip_pipeline/pipeline/pipeline_passthrough.c
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2015 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "pipeline_passthrough.h"
#include "pipeline_passthrough_be.h"
static int
app_pipeline_passthrough_track(struct pipeline_params *p,
uint32_t port_in,
uint32_t *port_out)
{
struct pipeline_passthrough_params pp;
int status;
/* Check input arguments */
if ((p == NULL) ||
(port_in >= p->n_ports_in) ||
(port_out == NULL))
return -1;
status = pipeline_passthrough_parse_args(&pp, p);
if (status)
return -1;
if (pp.dma_hash_lb_enabled)
return -1;
*port_out = port_in / (p->n_ports_in / p->n_ports_out);
return 0;
}
static struct pipeline_fe_ops pipeline_passthrough_fe_ops = {
.f_init = NULL,
.f_post_init = NULL,
.f_free = NULL,
.f_track = app_pipeline_passthrough_track,
.cmds = NULL,
};
struct pipeline_type pipeline_passthrough = {
.name = "PASS-THROUGH",
.be_ops = &pipeline_passthrough_be_ops,
.fe_ops = &pipeline_passthrough_fe_ops,
};