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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 "bdev_uring.h"
#include "spdk/rpc.h"
#include "spdk/util.h"
#include "spdk/string.h"
#include "spdk_internal/log.h"
/* Structure to hold the parameters for this RPC method. */
struct rpc_create_uring {
char *name;
char *filename;
uint32_t block_size;
};
/* Free the allocated memory resource after the RPC handling. */
static void
free_rpc_create_uring(struct rpc_create_uring *r)
{
free(r->name);
free(r->filename);
}
/* Structure to decode the input parameters for this RPC method. */
static const struct spdk_json_object_decoder rpc_create_uring_decoders[] = {
{"name", offsetof(struct rpc_create_uring, name), spdk_json_decode_string},
{"filename", offsetof(struct rpc_create_uring, filename), spdk_json_decode_string},
{"block_size", offsetof(struct rpc_create_uring, block_size), spdk_json_decode_uint32, true},
};
/* Decode the parameters for this RPC method and properly create the uring
* device. Error status returned in the failed cases.
*/
static void
rpc_bdev_uring_create(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct rpc_create_uring req = {};
struct spdk_json_write_ctx *w;
struct spdk_bdev *bdev;
if (spdk_json_decode_object(params, rpc_create_uring_decoders,
SPDK_COUNTOF(rpc_create_uring_decoders),
&req)) {
SPDK_ERRLOG("spdk_json_decode_object failed\n");
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
"spdk_json_decode_object failed");
goto cleanup;
}
bdev = create_uring_bdev(req.name, req.filename, req.block_size);
if (!bdev) {
SPDK_ERRLOG("Unable to create URING bdev from file %s\n", req.filename);
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
"Unable to create URING bdev.");
goto cleanup;
}
w = spdk_jsonrpc_begin_result(request);
spdk_json_write_string(w, req.name);
spdk_jsonrpc_end_result(request, w);
cleanup:
free_rpc_create_uring(&req);
}
SPDK_RPC_REGISTER("bdev_uring_create", rpc_bdev_uring_create, SPDK_RPC_RUNTIME)
struct rpc_delete_uring {
char *name;
};
static void
free_rpc_delete_uring(struct rpc_delete_uring *req)
{
free(req->name);
}
static const struct spdk_json_object_decoder rpc_delete_uring_decoders[] = {
{"name", offsetof(struct rpc_delete_uring, name), spdk_json_decode_string},
};
static void
_rpc_bdev_uring_delete_cb(void *cb_arg, int bdeverrno)
{
struct spdk_jsonrpc_request *request = cb_arg;
struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request);
spdk_json_write_bool(w, bdeverrno == 0);
spdk_jsonrpc_end_result(request, w);
}
static void
rpc_bdev_uring_delete(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct rpc_delete_uring req = {NULL};
struct spdk_bdev *bdev;
if (spdk_json_decode_object(params, rpc_delete_uring_decoders,
SPDK_COUNTOF(rpc_delete_uring_decoders),
&req)) {
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
"spdk_json_decode_object failed");
goto cleanup;
}
bdev = spdk_bdev_get_by_name(req.name);
if (bdev == NULL) {
spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
goto cleanup;
}
delete_uring_bdev(bdev, _rpc_bdev_uring_delete_cb, request);
cleanup:
free_rpc_delete_uring(&req);
}
SPDK_RPC_REGISTER("bdev_uring_delete", rpc_bdev_uring_delete, SPDK_RPC_RUNTIME)
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