891c12a63c
This patch remove need for additional buffer when translating error code to string. Change-Id: Iaa60088b5c450581d3cdddbb425119b17d55a44b Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com> Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-on: https://review.gerrithub.io/386114 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "spdk/string.h"
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#include "spdk/rpc.h"
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#include "spdk/util.h"
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#include "spdk_internal/log.h"
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#include "bdev_virtio.h"
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struct rpc_virtio_user_scsi_dev {
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char *path;
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char *name;
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uint32_t vq_count;
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uint32_t vq_size;
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struct spdk_jsonrpc_request *request;
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};
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static const struct spdk_json_object_decoder rpc_construct_virtio_user_scsi_dev[] = {
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{"path", offsetof(struct rpc_virtio_user_scsi_dev, path), spdk_json_decode_string },
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{"name", offsetof(struct rpc_virtio_user_scsi_dev, name), spdk_json_decode_string },
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{"vq_count", offsetof(struct rpc_virtio_user_scsi_dev, vq_size), spdk_json_decode_uint32, true },
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{"vq_size", offsetof(struct rpc_virtio_user_scsi_dev, vq_size), spdk_json_decode_uint32, true },
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};
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static void
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free_rpc_connect_virtio_user_scsi_dev(struct rpc_virtio_user_scsi_dev *req)
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{
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if (!req) {
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return;
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}
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free(req->path);
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free(req->name);
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free(req);
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}
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static void
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rpc_create_virtio_user_scsi_bdev_cb(void *ctx, int result, struct spdk_bdev **bdevs, size_t cnt)
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{
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struct rpc_virtio_user_scsi_dev *req = ctx;
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struct spdk_json_write_ctx *w;
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size_t i;
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if (result) {
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spdk_jsonrpc_send_error_response(req->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
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spdk_strerror(-result));
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free_rpc_connect_virtio_user_scsi_dev(req);
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return;
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}
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w = spdk_jsonrpc_begin_result(req->request);
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if (w) {
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spdk_json_write_array_begin(w);
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for (i = 0; i < cnt; i++) {
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spdk_json_write_string(w, spdk_bdev_get_name(bdevs[i]));
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}
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spdk_json_write_array_end(w);
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spdk_jsonrpc_end_result(req->request, w);
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}
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free_rpc_connect_virtio_user_scsi_dev(ctx);
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}
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static void
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spdk_rpc_create_virtio_user_scsi_bdev(struct spdk_jsonrpc_request *request,
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const struct spdk_json_val *params)
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{
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struct rpc_virtio_user_scsi_dev *req;
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int rc;
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req = calloc(1, sizeof(*req));
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if (!req) {
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rc = -ENOMEM;
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goto invalid;
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}
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req->vq_count = 1;
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req->vq_size = 512;
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if (spdk_json_decode_object(params, rpc_construct_virtio_user_scsi_dev,
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SPDK_COUNTOF(rpc_construct_virtio_user_scsi_dev),
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req)) {
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rc = -EINVAL;
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goto invalid;
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}
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req->request = request;
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rc = bdev_virtio_scsi_dev_create(req->name, req->path, req->vq_count, req->vq_size,
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rpc_create_virtio_user_scsi_bdev_cb, req);
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if (rc < 0) {
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goto invalid;
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}
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return;
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invalid:
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spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
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spdk_strerror(-rc));
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free_rpc_connect_virtio_user_scsi_dev(req);
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}
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SPDK_RPC_REGISTER("construct_virtio_user_scsi_bdev", spdk_rpc_create_virtio_user_scsi_bdev);
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