Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/src/seastar/dpdk/drivers/net/sfc/sfc_kvargs.c b/src/seastar/dpdk/drivers/net/sfc/sfc_kvargs.c
new file mode 100644
index 000000000..7a89c769a
--- /dev/null
+++ b/src/seastar/dpdk/drivers/net/sfc/sfc_kvargs.c
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2016-2018 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ */
+
+#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_PERF_PROFILE,
+		SFC_KVARG_RX_DATAPATH,
+		SFC_KVARG_TX_DATAPATH,
+		SFC_KVARG_FW_VARIANT,
+		SFC_KVARG_RXD_WAIT_TIMEOUT_NS,
+		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;
+}