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/*-
* BSD LICENSE
*
* Copyright (c) 2016-2017 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
*
* 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 <stdbool.h>
#include <strings.h>
#include <rte_devargs.h>
#include <rte_kvargs.h>
#include "sfc.h"
#include "sfc_kvargs.h"
int
sfc_kvargs_parse(struct sfc_adapter *sa)
{
struct rte_eth_dev *eth_dev = (sa)->eth_dev;
struct rte_devargs *devargs = eth_dev->device->devargs;
const char **params = (const char *[]){
SFC_KVARG_STATS_UPDATE_PERIOD_MS,
SFC_KVARG_DEBUG_INIT,
SFC_KVARG_MCDI_LOGGING,
SFC_KVARG_PERF_PROFILE,
SFC_KVARG_RX_DATAPATH,
SFC_KVARG_TX_DATAPATH,
NULL,
};
if (devargs == NULL)
return 0;
sa->kvargs = rte_kvargs_parse(devargs->args, params);
if (sa->kvargs == NULL)
return EINVAL;
return 0;
}
void
sfc_kvargs_cleanup(struct sfc_adapter *sa)
{
rte_kvargs_free(sa->kvargs);
}
static int
sfc_kvarg_match_value(const char *value, const char * const *values,
unsigned int n_values)
{
unsigned int i;
for (i = 0; i < n_values; ++i)
if (strcasecmp(value, values[i]) == 0)
return 1;
return 0;
}
int
sfc_kvargs_process(struct sfc_adapter *sa, const char *key_match,
arg_handler_t handler, void *opaque_arg)
{
if (sa->kvargs == NULL)
return 0;
return -rte_kvargs_process(sa->kvargs, key_match, handler, opaque_arg);
}
int
sfc_kvarg_bool_handler(__rte_unused const char *key,
const char *value_str, void *opaque)
{
const char * const true_strs[] = {
"1", "y", "yes", "on", "true"
};
const char * const false_strs[] = {
"0", "n", "no", "off", "false"
};
bool *value = opaque;
if (sfc_kvarg_match_value(value_str, true_strs,
RTE_DIM(true_strs)))
*value = true;
else if (sfc_kvarg_match_value(value_str, false_strs,
RTE_DIM(false_strs)))
*value = false;
else
return -EINVAL;
return 0;
}
int
sfc_kvarg_long_handler(__rte_unused const char *key,
const char *value_str, void *opaque)
{
long value;
char *endptr;
if (!value_str || !opaque)
return -EINVAL;
value = strtol(value_str, &endptr, 0);
if (endptr == value_str)
return -EINVAL;
*(long *)opaque = value;
return 0;
}
int
sfc_kvarg_string_handler(__rte_unused const char *key,
const char *value_str, void *opaque)
{
*(const char **)opaque = value_str;
return 0;
}
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