diff options
Diffstat (limited to 'src/spdk/lib/bdev/passthru/vbdev_passthru_rpc.c')
| -rw-r--r-- | src/spdk/lib/bdev/passthru/vbdev_passthru_rpc.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/spdk/lib/bdev/passthru/vbdev_passthru_rpc.c b/src/spdk/lib/bdev/passthru/vbdev_passthru_rpc.c new file mode 100644 index 00000000..9f0f9521 --- /dev/null +++ b/src/spdk/lib/bdev/passthru/vbdev_passthru_rpc.c @@ -0,0 +1,160 @@ +/*- + * 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 "vbdev_passthru.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_construct_passthru { + char *base_bdev_name; + char *passthru_bdev_name; +}; + +/* Free the allocated memory resource after the RPC handling. */ +static void +free_rpc_construct_passthru(struct rpc_construct_passthru *r) +{ + free(r->base_bdev_name); + free(r->passthru_bdev_name); +} + +/* Structure to decode the input parameters for this RPC method. */ +static const struct spdk_json_object_decoder rpc_construct_passthru_decoders[] = { + {"base_bdev_name", offsetof(struct rpc_construct_passthru, base_bdev_name), spdk_json_decode_string}, + {"passthru_bdev_name", offsetof(struct rpc_construct_passthru, passthru_bdev_name), spdk_json_decode_string}, +}; + +/* Decode the parameters for this RPC method and properly construct the passthru + * device. Error status returned in the failed cases. + */ +static void +spdk_rpc_construct_passthru_bdev(struct spdk_jsonrpc_request *request, + const struct spdk_json_val *params) +{ + struct rpc_construct_passthru req = {NULL}; + struct spdk_json_write_ctx *w; + int rc; + + if (spdk_json_decode_object(params, rpc_construct_passthru_decoders, + SPDK_COUNTOF(rpc_construct_passthru_decoders), + &req)) { + SPDK_DEBUGLOG(SPDK_LOG_VBDEV_PASSTHRU, "spdk_json_decode_object failed\n"); + goto invalid; + } + + rc = create_passthru_disk(req.base_bdev_name, req.passthru_bdev_name); + if (rc != 0) { + goto invalid; + } + + w = spdk_jsonrpc_begin_result(request); + if (w == NULL) { + free_rpc_construct_passthru(&req); + return; + } + + spdk_json_write_string(w, req.passthru_bdev_name); + spdk_jsonrpc_end_result(request, w); + free_rpc_construct_passthru(&req); + return; + +invalid: + free_rpc_construct_passthru(&req); + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); +} +SPDK_RPC_REGISTER("construct_passthru_bdev", spdk_rpc_construct_passthru_bdev, SPDK_RPC_RUNTIME) + +struct rpc_delete_passthru { + char *name; +}; + +static void +free_rpc_delete_passthru(struct rpc_delete_passthru *req) +{ + free(req->name); +} + +static const struct spdk_json_object_decoder rpc_delete_passthru_decoders[] = { + {"name", offsetof(struct rpc_delete_passthru, name), spdk_json_decode_string}, +}; + +static void +_spdk_rpc_delete_passthru_bdev_cb(void *cb_arg, int bdeverrno) +{ + struct spdk_jsonrpc_request *request = cb_arg; + struct spdk_json_write_ctx *w; + + w = spdk_jsonrpc_begin_result(request); + if (w == NULL) { + return; + } + + spdk_json_write_bool(w, bdeverrno == 0); + spdk_jsonrpc_end_result(request, w); +} + +static void +spdk_rpc_delete_passthru_bdev(struct spdk_jsonrpc_request *request, + const struct spdk_json_val *params) +{ + struct rpc_delete_passthru req = {NULL}; + struct spdk_bdev *bdev; + int rc; + + if (spdk_json_decode_object(params, rpc_delete_passthru_decoders, + SPDK_COUNTOF(rpc_delete_passthru_decoders), + &req)) { + rc = -EINVAL; + goto invalid; + } + + bdev = spdk_bdev_get_by_name(req.name); + if (bdev == NULL) { + rc = -ENODEV; + goto invalid; + } + + delete_passthru_disk(bdev, _spdk_rpc_delete_passthru_bdev_cb, request); + + free_rpc_delete_passthru(&req); + + return; + +invalid: + free_rpc_delete_passthru(&req); + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(-rc)); +} +SPDK_RPC_REGISTER("delete_passthru_bdev", spdk_rpc_delete_passthru_bdev, SPDK_RPC_RUNTIME) |