--- /dev/null
+/*-
+ * 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 <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)
+ rte_ring_set_water_mark(ring, 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,
+};
Code Review / deb_dpdk.git / blobdiff