DPDK  17.05.2
examples/ip_pipeline/pipeline/pipeline_master_be.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
* 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 <fcntl.h>
#include <unistd.h>
#include <rte_common.h>
#include <rte_malloc.h>
#include <cmdline_parse.h>
#include <cmdline_parse_string.h>
#include <cmdline_socket.h>
#include <cmdline.h>
#include "app.h"
#include "pipeline_master_be.h"
struct pipeline_master {
struct app_params *app;
struct cmdline *cl;
int post_init_done;
int script_file_done;
static void*
pipeline_init(__rte_unused struct pipeline_params *params, void *arg)
{
struct app_params *app = (struct app_params *) arg;
struct pipeline_master *p;
uint32_t size;
/* Check input arguments */
if (app == NULL)
return NULL;
/* Memory allocation */
size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct pipeline_master));
p = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
if (p == NULL)
return NULL;
/* Initialization */
p->app = app;
p->cl = cmdline_stdin_new(app->cmds, "pipeline> ");
if (p->cl == NULL) {
return NULL;
}
p->post_init_done = 0;
p->script_file_done = 0;
if (app->script_file == NULL)
p->script_file_done = 1;
return (void *) p;
}
static int
pipeline_free(void *pipeline)
{
struct pipeline_master *p = (struct pipeline_master *) pipeline;
if (p == NULL)
return -EINVAL;
cmdline_stdin_exit(p->cl);
return 0;
}
static int
pipeline_run(void *pipeline)
{
struct pipeline_master *p = (struct pipeline_master *) pipeline;
struct app_params *app = p->app;
int status;
#ifdef RTE_LIBRTE_KNI
uint32_t i;
#endif /* RTE_LIBRTE_KNI */
/* Application post-init phase */
if (p->post_init_done == 0) {
app_post_init(app);
p->post_init_done = 1;
}
/* Run startup script file */
if (p->script_file_done == 0) {
struct app_params *app = p->app;
int fd = open(app->script_file, O_RDONLY);
if (fd < 0)
printf("Cannot open CLI script file \"%s\"\n",
app->script_file);
else {
struct cmdline *file_cl;
printf("Running CLI script file \"%s\" ...\n",
app->script_file);
file_cl = cmdline_new(p->cl->ctx, "", fd, 1);
cmdline_interact(file_cl);
close(fd);
}
p->script_file_done = 1;
}
/* Command Line Interface (CLI) */
status = cmdline_poll(p->cl);
if (status < 0)
rte_panic("CLI poll error (%" PRId32 ")\n", status);
else if (status == RDLINE_EXITED) {
cmdline_stdin_exit(p->cl);
rte_exit(0, "Bye!\n");
}
#ifdef RTE_LIBRTE_KNI
/* Handle KNI requests from Linux kernel */
for (i = 0; i < app->n_pktq_kni; i++)
rte_kni_handle_request(app->kni[i]);
#endif /* RTE_LIBRTE_KNI */
return 0;
}
static int
pipeline_timer(__rte_unused void *pipeline)
{
return 0;
}
struct pipeline_be_ops pipeline_master_be_ops = {
.f_init = pipeline_init,
.f_free = pipeline_free,
.f_run = pipeline_run,
.f_timer = pipeline_timer,
};