/*   SPDX-License-Identifier: BSD-3-Clause
 *   Copyright (c) Intel Corporation.
 *   All rights reserved.
 */

#include "spdk_internal/accel_engine.h"

#include "spdk/rpc.h"
#include "spdk/util.h"
#include "spdk/event.h"
#include "spdk/stdinc.h"
#include "spdk/env.h"

const char *g_opcode_strings[ACCEL_OPC_LAST] = {
	"copy", "fill", "dualcast", "compare", "crc32c", "copy_crc32c",
	"compress", "decompress"
};

static int
_get_opc_name(enum accel_opcode opcode, const char **opcode_name)
{
	int rc = 0;

	if (opcode < ACCEL_OPC_LAST) {
		*opcode_name = g_opcode_strings[opcode];
	} else {
		/* invalid opcode */
		rc = -EINVAL;
	}

	return rc;
}

static void
rpc_accel_get_opc_assignments(struct spdk_jsonrpc_request *request,
			      const struct spdk_json_val *params)
{
	struct spdk_json_write_ctx *w;
	enum accel_opcode opcode;
	const char *name, *engine_name;
	int rc;

	if (params != NULL) {
		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
						 "accel_get_opc_assignments requires no parameters");
		return;
	}

	w = spdk_jsonrpc_begin_result(request);

	spdk_json_write_object_begin(w);
	for (opcode = 0; opcode < ACCEL_OPC_LAST; opcode++) {
		rc = _get_opc_name(opcode, &name);
		if (rc == 0) {
			rc = spdk_accel_get_opc_engine_name(opcode, &engine_name);
			if (rc != 0) {
				/* This isn't fatal but throw an informational message if we
				 * cant get an engine name right now */
				SPDK_NOTICELOG("FYI error (%d) getting engine name.\n", rc);
			}
			spdk_json_write_named_string(w, name, engine_name);
		} else {
			/* this should never happen */
			SPDK_ERRLOG("Invalid opcode (%d)).\n", opcode);
			assert(0);
		}
	}
	spdk_json_write_object_end(w);

	spdk_jsonrpc_end_result(request, w);
}
SPDK_RPC_REGISTER("accel_get_opc_assignments", rpc_accel_get_opc_assignments,
		  SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)