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author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/net/sfc/sfc_kvargs.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'drivers/net/sfc/sfc_kvargs.c')
-rw-r--r-- | drivers/net/sfc/sfc_kvargs.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/net/sfc/sfc_kvargs.c b/drivers/net/sfc/sfc_kvargs.c new file mode 100644 index 00000000..7bcd5951 --- /dev/null +++ b/drivers/net/sfc/sfc_kvargs.c @@ -0,0 +1,145 @@ +/*- + * 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; +} |