+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include <inttypes.h>
+#include <math.h>
+
+#include "otx2_ethdev.h"
+
+static int
+parse_flow_max_priority(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+ uint16_t val;
+
+ val = atoi(value);
+
+ /* Limit the max priority to 32 */
+ if (val < 1 || val > 32)
+ return -EINVAL;
+
+ *(uint16_t *)extra_args = val;
+
+ return 0;
+}
+
+static int
+parse_flow_prealloc_size(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+ uint16_t val;
+
+ val = atoi(value);
+
+ /* Limit the prealloc size to 32 */
+ if (val < 1 || val > 32)
+ return -EINVAL;
+
+ *(uint16_t *)extra_args = val;
+
+ return 0;
+}
+
+static int
+parse_reta_size(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+ uint32_t val;
+
+ val = atoi(value);
+
+ if (val <= ETH_RSS_RETA_SIZE_64)
+ val = ETH_RSS_RETA_SIZE_64;
+ else if (val > ETH_RSS_RETA_SIZE_64 && val <= ETH_RSS_RETA_SIZE_128)
+ val = ETH_RSS_RETA_SIZE_128;
+ else if (val > ETH_RSS_RETA_SIZE_128 && val <= ETH_RSS_RETA_SIZE_256)
+ val = ETH_RSS_RETA_SIZE_256;
+ else
+ val = NIX_RSS_RETA_SIZE;
+
+ *(uint16_t *)extra_args = val;
+
+ return 0;
+}
+
+static int
+parse_ptype_flag(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+ uint32_t val;
+
+ val = atoi(value);
+ if (val)
+ val = 0; /* Disable NIX_RX_OFFLOAD_PTYPE_F */
+
+ *(uint16_t *)extra_args = val;
+
+ return 0;
+}
+
+static int
+parse_flag(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+
+ *(uint16_t *)extra_args = atoi(value);
+
+ return 0;
+}
+
+static int
+parse_sqb_count(const char *key, const char *value, void *extra_args)
+{
+ RTE_SET_USED(key);
+ uint32_t val;
+
+ val = atoi(value);
+
+ if (val < NIX_MIN_SQB || val > NIX_MAX_SQB)
+ return -EINVAL;
+
+ *(uint16_t *)extra_args = val;
+
+ return 0;
+}
+
+#define OTX2_RSS_RETA_SIZE "reta_size"
+#define OTX2_PTYPE_DISABLE "ptype_disable"
+#define OTX2_SCL_ENABLE "scalar_enable"
+#define OTX2_MAX_SQB_COUNT "max_sqb_count"
+#define OTX2_FLOW_PREALLOC_SIZE "flow_prealloc_size"
+#define OTX2_FLOW_MAX_PRIORITY "flow_max_priority"
+
+int
+otx2_ethdev_parse_devargs(struct rte_devargs *devargs, struct otx2_eth_dev *dev)
+{
+ uint16_t offload_flag = NIX_RX_OFFLOAD_PTYPE_F;
+ uint16_t rss_size = NIX_RSS_RETA_SIZE;
+ uint16_t sqb_count = NIX_MAX_SQB;
+ uint16_t flow_prealloc_size = 8;
+ uint16_t flow_max_priority = 3;
+ uint16_t scalar_enable = 0;
+ struct rte_kvargs *kvlist;
+
+ if (devargs == NULL)
+ goto null_devargs;
+
+ kvlist = rte_kvargs_parse(devargs->args, NULL);
+ if (kvlist == NULL)
+ goto exit;
+
+ rte_kvargs_process(kvlist, OTX2_PTYPE_DISABLE,
+ &parse_ptype_flag, &offload_flag);
+ rte_kvargs_process(kvlist, OTX2_RSS_RETA_SIZE,
+ &parse_reta_size, &rss_size);
+ rte_kvargs_process(kvlist, OTX2_SCL_ENABLE,
+ &parse_flag, &scalar_enable);
+ rte_kvargs_process(kvlist, OTX2_MAX_SQB_COUNT,
+ &parse_sqb_count, &sqb_count);
+ rte_kvargs_process(kvlist, OTX2_FLOW_PREALLOC_SIZE,
+ &parse_flow_prealloc_size, &flow_prealloc_size);
+ rte_kvargs_process(kvlist, OTX2_FLOW_MAX_PRIORITY,
+ &parse_flow_max_priority, &flow_max_priority);
+ rte_kvargs_free(kvlist);
+
+null_devargs:
+ dev->rx_offload_flags = offload_flag;
+ dev->scalar_ena = scalar_enable;
+ dev->max_sqb_count = sqb_count;
+ dev->rss_info.rss_size = rss_size;
+ dev->npc_flow.flow_prealloc_size = flow_prealloc_size;
+ dev->npc_flow.flow_max_priority = flow_max_priority;
+ return 0;
+
+exit:
+ return -EINVAL;
+}
+
+RTE_PMD_REGISTER_PARAM_STRING(net_octeontx2,
+ OTX2_RSS_RETA_SIZE "=<64|128|256>"
+ OTX2_PTYPE_DISABLE "=1"
+ OTX2_SCL_ENABLE "=1"
+ OTX2_MAX_SQB_COUNT "=<32-512>"
+ OTX2_FLOW_PREALLOC_SIZE "=<1-32>"
+ OTX2_FLOW_MAX_PRIORITY "=<1-32>");