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bdev: Add rpc interface for rbd.

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Change-Id: I7ae271d8c687fc438ad74760877479a3d22e70c6
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
This commit is contained in:
Cunyin Chang 2016-10-10 09:12:10 +08:00 committed by Jim Harris
parent e578cfe3d4
commit b66913d2d4
2 changed files with 92 additions and 1 deletions
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2
lib/bdev/rbd/Makefile
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@ -35,7 +35,7 @@ SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../..)
include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
CFLAGS += -I$(SPDK_ROOT_DIR)/lib/bdev/
C_SRCS = blockdev_rbd.c
C_SRCS = blockdev_rbd.c blockdev_rbd_rpc.c
LIBNAME = bdev_rbd
include $(SPDK_ROOT_DIR)/mk/spdk.lib.mk

91
lib/bdev/rbd/blockdev_rbd_rpc.c Normal file
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@ -0,0 +1,91 @@
/*-
* 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 "blockdev_rbd.h"
#include "spdk/log.h"
#include "spdk/rpc.h"
struct rpc_construct_rbd {
char *pool_name;
char *rbd_name;
int32_t size;
};
static void
free_rpc_construct_rbd(struct rpc_construct_rbd *req)
{
free(req->pool_name);
free(req->rbd_name);
}
static const struct spdk_json_object_decoder rpc_construct_rbd_decoders[] = {
{"pool_name", offsetof(struct rpc_construct_rbd, pool_name), spdk_json_decode_string},
{"rbd_name", offsetof(struct rpc_construct_rbd, rbd_name), spdk_json_decode_string},
{"size", offsetof(struct rpc_construct_rbd, size), spdk_json_decode_int32},
};
static void
spdk_rpc_construct_rbd_bdev(struct spdk_jsonrpc_server_conn *conn,
const struct spdk_json_val *params,
const struct spdk_json_val *id)
{
struct rpc_construct_rbd req = {};
struct spdk_json_write_ctx *w;
if (spdk_json_decode_object(params, rpc_construct_rbd_decoders,
sizeof(rpc_construct_rbd_decoders) / sizeof(*rpc_construct_rbd_decoders),
&req)) {
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "spdk_json_decode_object failed\n");
goto invalid;
}
if (spdk_bdev_rbd_create(req.pool_name, req.rbd_name, req.size)) {
goto invalid;
}
free_rpc_construct_rbd(&req);
if (id == NULL) {
return;
}
w = spdk_jsonrpc_begin_result(conn, id);
spdk_json_write_bool(w, true);
spdk_jsonrpc_end_result(conn, w);
return;
invalid:
spdk_jsonrpc_send_error_response(conn, id, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
free_rpc_construct_rbd(&req);
}
SPDK_RPC_REGISTER("construct_rbd_bdev", spdk_rpc_construct_rbd_bdev)