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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <termios.h>
#include <cmdline_rdline.h>
#include <cmdline_parse.h>
#include <cmdline_parse_num.h>
#include <cmdline_parse_string.h>
#include <cmdline.h>
#include <rte_ring.h>
#include "qwctl.h"
#include "../include/conf.h"
/**
* help command
*/
struct cmd_help_tokens {
cmdline_fixed_string_t verb;
};
cmdline_parse_token_string_t cmd_help_verb =
TOKEN_STRING_INITIALIZER(struct cmd_help_tokens, verb, "help");
static void
cmd_help_handler(__attribute__((unused)) void *parsed_result,
struct cmdline *cl,
__attribute__((unused)) void *data)
{
cmdline_printf(cl, "Available commands:\n"
"- help\n"
"- set [ring_name|variable] <value>\n"
"- show [ring_name|variable]\n"
"\n"
"Available variables:\n"
"- low_watermark\n"
"- quota\n"
"- ring names follow the core%%u_port%%u format\n");
}
cmdline_parse_inst_t cmd_help = {
.f = cmd_help_handler,
.data = NULL,
.help_str = "show help",
.tokens = {
(void *) &cmd_help_verb,
NULL,
},
};
/**
* set command
*/
struct cmd_set_tokens {
cmdline_fixed_string_t verb;
cmdline_fixed_string_t variable;
uint32_t value;
};
cmdline_parse_token_string_t cmd_set_verb =
TOKEN_STRING_INITIALIZER(struct cmd_set_tokens, verb, "set");
cmdline_parse_token_string_t cmd_set_variable =
TOKEN_STRING_INITIALIZER(struct cmd_set_tokens, variable, NULL);
cmdline_parse_token_num_t cmd_set_value =
TOKEN_NUM_INITIALIZER(struct cmd_set_tokens, value, UINT32);
static void
cmd_set_handler(__attribute__((unused)) void *parsed_result,
struct cmdline *cl,
__attribute__((unused)) void *data)
{
struct cmd_set_tokens *tokens = parsed_result;
struct rte_ring *ring;
if (!strcmp(tokens->variable, "quota")) {
if (tokens->value > 0 && tokens->value <= MAX_PKT_QUOTA)
*quota = tokens->value;
else
cmdline_printf(cl, "quota must be between 1 and %u\n",
MAX_PKT_QUOTA);
}
else if (!strcmp(tokens->variable, "low_watermark")) {
if (tokens->value <= 100)
*low_watermark = tokens->value * RING_SIZE / 100;
else
cmdline_printf(cl,
"low_watermark must be between 0%% and 100%%\n");
}
else {
ring = rte_ring_lookup(tokens->variable);
if (ring == NULL)
cmdline_printf(cl, "Cannot find ring \"%s\"\n",
tokens->variable);
else
if (tokens->value >= *low_watermark * 100 / RING_SIZE
&& tokens->value <= 100)
*high_watermark = tokens->value *
RING_SIZE / 100;
else
cmdline_printf(cl,
"ring high watermark must be between %u%% and 100%%\n",
*low_watermark * 100 / RING_SIZE);
}
}
cmdline_parse_inst_t cmd_set = {
.f = cmd_set_handler,
.data = NULL,
.help_str = "Set a variable value",
.tokens = {
(void *) &cmd_set_verb,
(void *) &cmd_set_variable,
(void *) &cmd_set_value,
NULL,
},
};
/**
* show command
*/
struct cmd_show_tokens {
cmdline_fixed_string_t verb;
cmdline_fixed_string_t variable;
};
cmdline_parse_token_string_t cmd_show_verb =
TOKEN_STRING_INITIALIZER(struct cmd_show_tokens, verb, "show");
cmdline_parse_token_string_t cmd_show_variable =
TOKEN_STRING_INITIALIZER(struct cmd_show_tokens,
variable, NULL);
static void
cmd_show_handler(__attribute__((unused)) void *parsed_result,
struct cmdline *cl,
__attribute__((unused)) void *data)
{
struct cmd_show_tokens *tokens = parsed_result;
struct rte_ring *ring;
if (!strcmp(tokens->variable, "quota"))
cmdline_printf(cl, "Global quota: %d\n", *quota);
else if (!strcmp(tokens->variable, "low_watermark"))
cmdline_printf(cl, "Global low_watermark: %u\n",
*low_watermark);
else {
ring = rte_ring_lookup(tokens->variable);
if (ring == NULL)
cmdline_printf(cl, "Cannot find ring \"%s\"\n",
tokens->variable);
else
rte_ring_dump(stdout, ring);
}
}
cmdline_parse_inst_t cmd_show = {
.f = cmd_show_handler,
.data = NULL,
.help_str = "Show a variable value",
.tokens = {
(void *) &cmd_show_verb,
(void *) &cmd_show_variable,
NULL,
},
};
cmdline_parse_ctx_t qwctl_ctx[] = {
(cmdline_parse_inst_t *)&cmd_help,
(cmdline_parse_inst_t *)&cmd_set,
(cmdline_parse_inst_t *)&cmd_show,
NULL,
};
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