DPDK  16.11.11
ip_pipeline/config_parse_tm.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 <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <getopt.h>
#include <errno.h>
#include <stdarg.h>
#include <string.h>
#include <libgen.h>
#include <unistd.h>
#include <rte_errno.h>
#include <rte_cfgfile.h>
#include <rte_string_fns.h>
#include "app.h"
static int
tm_cfgfile_load_sched_port(
struct rte_cfgfile *file,
struct rte_sched_port_params *port_params)
{
const char *entry;
int j;
entry = rte_cfgfile_get_entry(file, "port", "frame overhead");
if (entry)
port_params->frame_overhead = (uint32_t)atoi(entry);
entry = rte_cfgfile_get_entry(file, "port", "mtu");
if (entry)
port_params->mtu = (uint32_t)atoi(entry);
entry = rte_cfgfile_get_entry(file,
"port",
"number of subports per port");
if (entry)
port_params->n_subports_per_port = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
"port",
"number of pipes per subport");
if (entry)
port_params->n_pipes_per_subport = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, "port", "queue sizes");
if (entry) {
char *next;
for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++) {
port_params->qsize[j] = (uint16_t)
strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
#ifdef RTE_SCHED_RED
for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++) {
char str[32];
/* Parse WRED min thresholds */
snprintf(str, sizeof(str), "tc %" PRId32 " wred min", j);
entry = rte_cfgfile_get_entry(file, "red", str);
if (entry) {
char *next;
int k;
/* for each packet colour (green, yellow, red) */
for (k = 0; k < e_RTE_METER_COLORS; k++) {
port_params->red_params[j][k].min_th
= (uint16_t)strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
/* Parse WRED max thresholds */
snprintf(str, sizeof(str), "tc %" PRId32 " wred max", j);
entry = rte_cfgfile_get_entry(file, "red", str);
if (entry) {
char *next;
int k;
/* for each packet colour (green, yellow, red) */
for (k = 0; k < e_RTE_METER_COLORS; k++) {
port_params->red_params[j][k].max_th
= (uint16_t)strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
/* Parse WRED inverse mark probabilities */
snprintf(str, sizeof(str), "tc %" PRId32 " wred inv prob", j);
entry = rte_cfgfile_get_entry(file, "red", str);
if (entry) {
char *next;
int k;
/* for each packet colour (green, yellow, red) */
for (k = 0; k < e_RTE_METER_COLORS; k++) {
port_params->red_params[j][k].maxp_inv
= (uint8_t)strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
/* Parse WRED EWMA filter weights */
snprintf(str, sizeof(str), "tc %" PRId32 " wred weight", j);
entry = rte_cfgfile_get_entry(file, "red", str);
if (entry) {
char *next;
int k;
/* for each packet colour (green, yellow, red) */
for (k = 0; k < e_RTE_METER_COLORS; k++) {
port_params->red_params[j][k].wq_log2
= (uint8_t)strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
}
#endif /* RTE_SCHED_RED */
return 0;
}
static int
tm_cfgfile_load_sched_pipe(
struct rte_cfgfile *file,
struct rte_sched_port_params *port_params,
struct rte_sched_pipe_params *pipe_params)
{
int i, j;
char *next;
const char *entry;
int profiles;
profiles = rte_cfgfile_num_sections(file,
"pipe profile", sizeof("pipe profile") - 1);
port_params->n_pipe_profiles = profiles;
for (j = 0; j < profiles; j++) {
char pipe_name[32];
snprintf(pipe_name, sizeof(pipe_name),
"pipe profile %" PRId32, j);
entry = rte_cfgfile_get_entry(file, pipe_name, "tb rate");
if (entry)
pipe_params[j].tb_rate = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tb size");
if (entry)
pipe_params[j].tb_size = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tc period");
if (entry)
pipe_params[j].tc_period = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 0 rate");
if (entry)
pipe_params[j].tc_rate[0] = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 1 rate");
if (entry)
pipe_params[j].tc_rate[1] = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 2 rate");
if (entry)
pipe_params[j].tc_rate[2] = (uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 3 rate");
if (entry)
pipe_params[j].tc_rate[3] = (uint32_t) atoi(entry);
#ifdef RTE_SCHED_SUBPORT_TC_OV
entry = rte_cfgfile_get_entry(file, pipe_name,
"tc 3 oversubscription weight");
if (entry)
pipe_params[j].tc_ov_weight = (uint8_t)atoi(entry);
#endif
entry = rte_cfgfile_get_entry(file,
pipe_name,
"tc 0 wrr weights");
if (entry)
for (i = 0; i < RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS; i++) {
pipe_params[j].wrr_weights[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE*0 + i] =
(uint8_t) strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 1 wrr weights");
if (entry)
for (i = 0; i < RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS; i++) {
pipe_params[j].wrr_weights[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE*1 + i] =
(uint8_t) strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 2 wrr weights");
if (entry)
for (i = 0; i < RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS; i++) {
pipe_params[j].wrr_weights[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE*2 + i] =
(uint8_t) strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
entry = rte_cfgfile_get_entry(file, pipe_name, "tc 3 wrr weights");
if (entry)
for (i = 0; i < RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS; i++) {
pipe_params[j].wrr_weights[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE*3 + i] =
(uint8_t) strtol(entry, &next, 10);
if (next == NULL)
break;
entry = next;
}
}
return 0;
}
static int
tm_cfgfile_load_sched_subport(
struct rte_cfgfile *file,
struct rte_sched_subport_params *subport_params,
int *pipe_to_profile)
{
const char *entry;
int i, j, k;
for (i = 0; i < APP_MAX_SCHED_SUBPORTS; i++) {
char sec_name[CFG_NAME_LEN];
snprintf(sec_name, sizeof(sec_name),
"subport %" PRId32, i);
if (rte_cfgfile_has_section(file, sec_name)) {
entry = rte_cfgfile_get_entry(file,
sec_name,
"tb rate");
if (entry)
subport_params[i].tb_rate =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tb size");
if (entry)
subport_params[i].tb_size =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tc period");
if (entry)
subport_params[i].tc_period =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tc 0 rate");
if (entry)
subport_params[i].tc_rate[0] =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tc 1 rate");
if (entry)
subport_params[i].tc_rate[1] =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tc 2 rate");
if (entry)
subport_params[i].tc_rate[2] =
(uint32_t) atoi(entry);
entry = rte_cfgfile_get_entry(file,
sec_name,
"tc 3 rate");
if (entry)
subport_params[i].tc_rate[3] =
(uint32_t) atoi(entry);
int n_entries = rte_cfgfile_section_num_entries(file,
sec_name);
struct rte_cfgfile_entry entries[n_entries];
sec_name,
entries,
n_entries);
for (j = 0; j < n_entries; j++)
if (strncmp("pipe",
entries[j].name,
sizeof("pipe") - 1) == 0) {
int profile;
char *tokens[2] = {NULL, NULL};
int n_tokens;
int begin, end;
char name[CFG_NAME_LEN + 1];
profile = atoi(entries[j].value);
strncpy(name,
entries[j].name,
sizeof(name));
n_tokens = rte_strsplit(
&name[sizeof("pipe")],
strnlen(name, CFG_NAME_LEN),
tokens, 2, '-');
begin = atoi(tokens[0]);
if (n_tokens == 2)
end = atoi(tokens[1]);
else
end = begin;
if ((end >= APP_MAX_SCHED_PIPES) ||
(begin > end))
return -1;
for (k = begin; k <= end; k++) {
char profile_name[CFG_NAME_LEN];
snprintf(profile_name,
sizeof(profile_name),
"pipe profile %" PRId32,
profile);
if (rte_cfgfile_has_section(file, profile_name))
pipe_to_profile[i * APP_MAX_SCHED_PIPES + k] = profile;
else
rte_exit(EXIT_FAILURE,
"Wrong pipe profile %s\n",
entries[j].value);
}
}
}
}
return 0;
}
static int
tm_cfgfile_load(struct app_pktq_tm_params *tm)
{
struct rte_cfgfile *file;
uint32_t i;
memset(tm->sched_subport_params, 0, sizeof(tm->sched_subport_params));
memset(tm->sched_pipe_profiles, 0, sizeof(tm->sched_pipe_profiles));
memset(&tm->sched_port_params, 0, sizeof(tm->sched_port_params));
for (i = 0; i < APP_MAX_SCHED_SUBPORTS * APP_MAX_SCHED_PIPES; i++)
tm->sched_pipe_to_profile[i] = -1;
tm->sched_port_params.pipe_profiles = &tm->sched_pipe_profiles[0];
if (tm->file_name[0] == '\0')
return -1;
file = rte_cfgfile_load(tm->file_name, 0);
if (file == NULL)
return -1;
tm_cfgfile_load_sched_port(file,
&tm->sched_port_params);
tm_cfgfile_load_sched_subport(file,
tm->sched_subport_params,
tm->sched_pipe_to_profile);
tm_cfgfile_load_sched_pipe(file,
&tm->sched_port_params,
tm->sched_pipe_profiles);
return 0;
}
int
app_config_parse_tm(struct app_params *app)
{
uint32_t i;
for (i = 0; i < RTE_DIM(app->tm_params); i++) {
struct app_pktq_tm_params *p = &app->tm_params[i];
int status;
if (!APP_PARAM_VALID(p))
break;
status = tm_cfgfile_load(p);
APP_CHECK(status == 0,
"Parse error for %s configuration file \"%s\"\n",
p->name,
p->file_name);
}
return 0;
}