[ceph.git] / ceph / src / spdk / lib / bdev / pmem / bdev_pmem_rpc.c

/*-
 *   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_pmem.h"
#include "spdk/rpc.h"
#include "spdk/util.h"
#include "spdk/string.h"
#include "libpmemblk.h"

#include "spdk_internal/log.h"

struct rpc_construct_pmem {
	char *pmem_file;
	char *name;
};

static void
free_rpc_construct_pmem_bdev(struct rpc_construct_pmem *req)
{
	free(req->pmem_file);
	free(req->name);
}

static const struct spdk_json_object_decoder rpc_construct_pmem_decoders[] = {
	{"pmem_file", offsetof(struct rpc_construct_pmem, pmem_file), spdk_json_decode_string},
	{"name", offsetof(struct rpc_construct_pmem, name), spdk_json_decode_string},
};

static void
spdk_rpc_construct_pmem_bdev(struct spdk_jsonrpc_request *request,
			     const struct spdk_json_val *params)
{
	struct rpc_construct_pmem req = {};
	struct spdk_json_write_ctx *w;
	struct spdk_bdev *bdev;
	int rc;

	if (spdk_json_decode_object(params, rpc_construct_pmem_decoders,
				    SPDK_COUNTOF(rpc_construct_pmem_decoders),
				    &req)) {
		SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
		rc = EINVAL;
		goto invalid;
	}
	rc = spdk_create_pmem_disk(req.pmem_file, req.name, &bdev);
	if (rc != 0) {
		goto invalid;
	}
	if (bdev == NULL) {
		goto invalid;
	}

	w = spdk_jsonrpc_begin_result(request);
	if (w == NULL) {
		free_rpc_construct_pmem_bdev(&req);
		return;
	}

	spdk_json_write_string(w, spdk_bdev_get_name(bdev));
	spdk_jsonrpc_end_result(request, w);

	free_rpc_construct_pmem_bdev(&req);

	return;

invalid:
	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(rc));
	free_rpc_construct_pmem_bdev(&req);
}
SPDK_RPC_REGISTER("construct_pmem_bdev", spdk_rpc_construct_pmem_bdev, SPDK_RPC_RUNTIME)

struct rpc_delete_pmem {
	char *name;
};

static void
free_rpc_delete_pmem(struct rpc_delete_pmem *req)
{
	free(req->name);
}

static const struct spdk_json_object_decoder rpc_delete_pmem_decoders[] = {
	{"name", offsetof(struct rpc_delete_pmem, name), spdk_json_decode_string},
};

static void
_spdk_rpc_delete_pmem_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_pmem_bdev(struct spdk_jsonrpc_request *request,
			  const struct spdk_json_val *params)
{
	struct rpc_delete_pmem req = {NULL};
	struct spdk_bdev *bdev;
	int rc;

	if (spdk_json_decode_object(params, rpc_delete_pmem_decoders,
				    SPDK_COUNTOF(rpc_delete_pmem_decoders),
				    &req)) {
		rc = -EINVAL;
		goto invalid;
	}

	bdev = spdk_bdev_get_by_name(req.name);
	if (bdev == NULL) {
		rc = -ENODEV;
		goto invalid;
	}

	spdk_delete_pmem_disk(bdev, _spdk_rpc_delete_pmem_bdev_cb, request);
	free_rpc_delete_pmem(&req);
	return;

invalid:
	free_rpc_delete_pmem(&req);
	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(-rc));
}
SPDK_RPC_REGISTER("delete_pmem_bdev", spdk_rpc_delete_pmem_bdev, SPDK_RPC_RUNTIME)

struct rpc_create_pmem_pool {
	char *pmem_file;
	uint64_t num_blocks;
	uint32_t block_size;
};

static const struct spdk_json_object_decoder rpc_create_pmem_pool_decoders[] = {
	{"pmem_file", offsetof(struct rpc_create_pmem_pool, pmem_file), spdk_json_decode_string},
	{"num_blocks", offsetof(struct rpc_create_pmem_pool, num_blocks), spdk_json_decode_uint64},
	{"block_size", offsetof(struct rpc_create_pmem_pool, block_size), spdk_json_decode_uint32},
};

static void
free_rpc_create_pmem_pool(struct rpc_create_pmem_pool *req)
{
	free(req->pmem_file);
}

static void
spdk_rpc_create_pmem_pool(struct spdk_jsonrpc_request *request,
			  const struct spdk_json_val *params)
{
	struct rpc_create_pmem_pool req = {};
	struct spdk_json_write_ctx *w;
	uint64_t pool_size;
	PMEMblkpool *pbp;

	if (spdk_json_decode_object(params, rpc_create_pmem_pool_decoders,
				    SPDK_COUNTOF(rpc_create_pmem_pool_decoders),
				    &req)) {
		SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
		goto invalid;
	}

	/* libpmemblk pool has to contain at least 256 blocks */
	if (req.num_blocks < 256) {
		goto invalid;
	}

	pool_size = req.num_blocks * req.block_size;
	if (pool_size < PMEMBLK_MIN_POOL) {
		goto invalid;
	}

	pbp = pmemblk_create(req.pmem_file, req.block_size, pool_size, 0666);
	if (pbp == NULL) {
		const char *msg = pmemblk_errormsg();

		SPDK_ERRLOG("pmemblk_create() failed: %s\n", msg ? msg : "(logs disabled)");
		goto invalid;
	}

	pmemblk_close(pbp);

	w = spdk_jsonrpc_begin_result(request);
	if (w == NULL) {
		free_rpc_create_pmem_pool(&req);
		return;
	}

	spdk_json_write_bool(w, true);
	spdk_jsonrpc_end_result(request, w);
	free_rpc_create_pmem_pool(&req);
	return;

invalid:
	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	free_rpc_create_pmem_pool(&req);
}
SPDK_RPC_REGISTER("create_pmem_pool", spdk_rpc_create_pmem_pool, SPDK_RPC_RUNTIME)

struct rpc_pmem_pool_info {
	char *pmem_file;
};

static const struct spdk_json_object_decoder rpc_pmem_pool_info_decoders[] = {
	{"pmem_file", offsetof(struct rpc_pmem_pool_info, pmem_file), spdk_json_decode_string},
};

static void
free_rpc_pmem_pool_info(struct rpc_pmem_pool_info *req)
{
	free(req->pmem_file);
}

static void
spdk_rpc_pmem_pool_info(struct spdk_jsonrpc_request *request,
			const struct spdk_json_val *params)
{
	struct rpc_pmem_pool_info req = {};
	struct spdk_json_write_ctx *w;
	size_t num_blocks, block_size;
	PMEMblkpool *pbp;

	if (spdk_json_decode_object(params, rpc_pmem_pool_info_decoders,
				    SPDK_COUNTOF(rpc_pmem_pool_info_decoders),
				    &req)) {
		SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
		goto invalid;
	}

	pbp = pmemblk_open(req.pmem_file, 0);
	if (pbp == NULL) {
		goto invalid;
	}

	block_size = pmemblk_bsize(pbp);
	num_blocks = pmemblk_nblock(pbp);


	pmemblk_close(pbp);

	/* Check pmem pool consistency */
	if (pmemblk_check(req.pmem_file, block_size) != 1) {
		goto invalid;
	}

	w = spdk_jsonrpc_begin_result(request);
	if (w == NULL) {
		free_rpc_pmem_pool_info(&req);
		return;
	}

	spdk_json_write_array_begin(w);
	spdk_json_write_object_begin(w);
	spdk_json_write_named_uint64(w, "num_blocks", num_blocks);
	spdk_json_write_named_uint64(w, "block_size", block_size);
	spdk_json_write_object_end(w);
	spdk_json_write_array_end(w);
	spdk_jsonrpc_end_result(request, w);
	free_rpc_pmem_pool_info(&req);
	return;

invalid:
	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	free_rpc_pmem_pool_info(&req);
}
SPDK_RPC_REGISTER("pmem_pool_info", spdk_rpc_pmem_pool_info, SPDK_RPC_RUNTIME)

struct rpc_delete_pmem_pool {
	char *pmem_file;
};

static const struct spdk_json_object_decoder rpc_delete_pmem_pool_decoders[] = {
	{"pmem_file", offsetof(struct rpc_delete_pmem_pool, pmem_file), spdk_json_decode_string},
};

static void
free_rpc_delete_pmem_pool(struct rpc_delete_pmem_pool *req)
{
	free(req->pmem_file);
}

static void
spdk_rpc_delete_pmem_pool(struct spdk_jsonrpc_request *request,
			  const struct spdk_json_val *params)
{
	struct rpc_delete_pmem_pool req = {};
	struct spdk_json_write_ctx *w;
	int rc;

	if (spdk_json_decode_object(params, rpc_delete_pmem_pool_decoders,
				    SPDK_COUNTOF(rpc_delete_pmem_pool_decoders),
				    &req)) {
		SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
		goto invalid;
	}

	/* Check if file is actually pmem pool */
	rc = pmemblk_check(req.pmem_file, 0);
	if (rc != 1) {
		const char *msg = pmemblk_errormsg();

		SPDK_ERRLOG("pmemblk_check() failed (%d): %s\n", rc, msg ? msg : "(logs disabled)");
		goto invalid;
	}

	unlink(req.pmem_file);

	w = spdk_jsonrpc_begin_result(request);
	if (w == NULL) {
		free_rpc_delete_pmem_pool(&req);
		return;
	}

	spdk_json_write_bool(w, true);
	spdk_jsonrpc_end_result(request, w);
	free_rpc_delete_pmem_pool(&req);
	return;

invalid:
	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	free_rpc_delete_pmem_pool(&req);
}
SPDK_RPC_REGISTER("delete_pmem_pool", spdk_rpc_delete_pmem_pool, SPDK_RPC_RUNTIME)
Commit	Line	Data
11fdf7f2 TL	1	/*-
	2	* BSD LICENSE
	3	*
	4	* Copyright (c) Intel Corporation.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	*
	11	* * Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* * Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in
	15	* the documentation and/or other materials provided with the
	16	* distribution.
	17	* * Neither the name of Intel Corporation nor the names of its
	18	* contributors may be used to endorse or promote products derived
	19	* from this software without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	22	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	23	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	24	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	25	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	26	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	27	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	28	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	29	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	30	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	31	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	32	*/
	33
	34	#include "bdev_pmem.h"
	35	#include "spdk/rpc.h"
	36	#include "spdk/util.h"
	37	#include "spdk/string.h"
	38	#include "libpmemblk.h"
	39
	40	#include "spdk_internal/log.h"
	41
	42	struct rpc_construct_pmem {
	43	char *pmem_file;
	44	char *name;
	45	};
	46
	47	static void
	48	free_rpc_construct_pmem_bdev(struct rpc_construct_pmem *req)
	49	{
	50	free(req->pmem_file);
	51	free(req->name);
	52	}
	53
	54	static const struct spdk_json_object_decoder rpc_construct_pmem_decoders[] = {
	55	{"pmem_file", offsetof(struct rpc_construct_pmem, pmem_file), spdk_json_decode_string},
	56	{"name", offsetof(struct rpc_construct_pmem, name), spdk_json_decode_string},
	57	};
	58
	59	static void
	60	spdk_rpc_construct_pmem_bdev(struct spdk_jsonrpc_request *request,
	61	const struct spdk_json_val *params)
	62	{
	63	struct rpc_construct_pmem req = {};
	64	struct spdk_json_write_ctx *w;
65	struct spdk_bdev *bdev;
66	int rc;
67
68	if (spdk_json_decode_object(params, rpc_construct_pmem_decoders,
69	SPDK_COUNTOF(rpc_construct_pmem_decoders),
70	&req)) {
71	SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
72	rc = EINVAL;
73	goto invalid;
74	}
75	rc = spdk_create_pmem_disk(req.pmem_file, req.name, &bdev);
76	if (rc != 0) {
77	goto invalid;
78	}
79	if (bdev == NULL) {
80	goto invalid;
81	}
82
83	w = spdk_jsonrpc_begin_result(request);
84	if (w == NULL) {
85	free_rpc_construct_pmem_bdev(&req);
86	return;
87	}
88
89	spdk_json_write_string(w, spdk_bdev_get_name(bdev));
90	spdk_jsonrpc_end_result(request, w);
91
92	free_rpc_construct_pmem_bdev(&req);
93
94	return;
95
96	invalid:
97	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(rc));
98	free_rpc_construct_pmem_bdev(&req);
99	}
100	SPDK_RPC_REGISTER("construct_pmem_bdev", spdk_rpc_construct_pmem_bdev, SPDK_RPC_RUNTIME)
101
102	struct rpc_delete_pmem {
103	char *name;
104	};
105
106	static void
107	free_rpc_delete_pmem(struct rpc_delete_pmem *req)
108	{
109	free(req->name);
110	}
111
112	static const struct spdk_json_object_decoder rpc_delete_pmem_decoders[] = {
113	{"name", offsetof(struct rpc_delete_pmem, name), spdk_json_decode_string},
114	};
115
116	static void
117	_spdk_rpc_delete_pmem_bdev_cb(void *cb_arg, int bdeverrno)
118	{
119	struct spdk_jsonrpc_request *request = cb_arg;
120	struct spdk_json_write_ctx *w;
121
122	w = spdk_jsonrpc_begin_result(request);
123	if (w == NULL) {
124	return;
125	}
126
127	spdk_json_write_bool(w, bdeverrno == 0);
128	spdk_jsonrpc_end_result(request, w);
129	}
130
131	static void
132	spdk_rpc_delete_pmem_bdev(struct spdk_jsonrpc_request *request,
133	const struct spdk_json_val *params)
134	{
135	struct rpc_delete_pmem req = {NULL};
136	struct spdk_bdev *bdev;
137	int rc;
138
139	if (spdk_json_decode_object(params, rpc_delete_pmem_decoders,
140	SPDK_COUNTOF(rpc_delete_pmem_decoders),
141	&req)) {
142	rc = -EINVAL;
143	goto invalid;
144	}
145
146	bdev = spdk_bdev_get_by_name(req.name);
147	if (bdev == NULL) {
148	rc = -ENODEV;
149	goto invalid;
150	}
151
152	spdk_delete_pmem_disk(bdev, _spdk_rpc_delete_pmem_bdev_cb, request);
153	free_rpc_delete_pmem(&req);
154	return;
155
156	invalid:
157	free_rpc_delete_pmem(&req);
158	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(-rc));
159	}
160	SPDK_RPC_REGISTER("delete_pmem_bdev", spdk_rpc_delete_pmem_bdev, SPDK_RPC_RUNTIME)
161
162	struct rpc_create_pmem_pool {
163	char *pmem_file;
164	uint64_t num_blocks;
165	uint32_t block_size;
166	};
167
168	static const struct spdk_json_object_decoder rpc_create_pmem_pool_decoders[] = {
169	{"pmem_file", offsetof(struct rpc_create_pmem_pool, pmem_file), spdk_json_decode_string},
170	{"num_blocks", offsetof(struct rpc_create_pmem_pool, num_blocks), spdk_json_decode_uint64},
171	{"block_size", offsetof(struct rpc_create_pmem_pool, block_size), spdk_json_decode_uint32},
172	};
173
174	static void
175	free_rpc_create_pmem_pool(struct rpc_create_pmem_pool *req)
176	{
177	free(req->pmem_file);
178	}
179
180	static void
181	spdk_rpc_create_pmem_pool(struct spdk_jsonrpc_request *request,
182	const struct spdk_json_val *params)
183	{
184	struct rpc_create_pmem_pool req = {};
185	struct spdk_json_write_ctx *w;
186	uint64_t pool_size;
187	PMEMblkpool *pbp;
188
189	if (spdk_json_decode_object(params, rpc_create_pmem_pool_decoders,
190	SPDK_COUNTOF(rpc_create_pmem_pool_decoders),
191	&req)) {
192	SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
193	goto invalid;
194	}
195
196	/* libpmemblk pool has to contain at least 256 blocks */
197	if (req.num_blocks < 256) {
198	goto invalid;
199	}
200
201	pool_size = req.num_blocks * req.block_size;
202	if (pool_size < PMEMBLK_MIN_POOL) {
203	goto invalid;
204	}
205
206	pbp = pmemblk_create(req.pmem_file, req.block_size, pool_size, 0666);
207	if (pbp == NULL) {
9f95a23c TL	208	const char *msg = pmemblk_errormsg();
	209
	210	SPDK_ERRLOG("pmemblk_create() failed: %s\n", msg ? msg : "(logs disabled)");
11fdf7f2 TL	211	goto invalid;
	212	}
	213
	214	pmemblk_close(pbp);
	215
	216	w = spdk_jsonrpc_begin_result(request);
	217	if (w == NULL) {
	218	free_rpc_create_pmem_pool(&req);
	219	return;
	220	}
	221
	222	spdk_json_write_bool(w, true);
	223	spdk_jsonrpc_end_result(request, w);
	224	free_rpc_create_pmem_pool(&req);
	225	return;
	226
	227	invalid:
	228	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	229	free_rpc_create_pmem_pool(&req);
	230	}
	231	SPDK_RPC_REGISTER("create_pmem_pool", spdk_rpc_create_pmem_pool, SPDK_RPC_RUNTIME)
	232
	233	struct rpc_pmem_pool_info {
	234	char *pmem_file;
	235	};
	236
	237	static const struct spdk_json_object_decoder rpc_pmem_pool_info_decoders[] = {
	238	{"pmem_file", offsetof(struct rpc_pmem_pool_info, pmem_file), spdk_json_decode_string},
	239	};
	240
	241	static void
	242	free_rpc_pmem_pool_info(struct rpc_pmem_pool_info *req)
	243	{
	244	free(req->pmem_file);
	245	}
	246
	247	static void
	248	spdk_rpc_pmem_pool_info(struct spdk_jsonrpc_request *request,
	249	const struct spdk_json_val *params)
	250	{
	251	struct rpc_pmem_pool_info req = {};
	252	struct spdk_json_write_ctx *w;
	253	size_t num_blocks, block_size;
	254	PMEMblkpool *pbp;
	255
	256	if (spdk_json_decode_object(params, rpc_pmem_pool_info_decoders,
	257	SPDK_COUNTOF(rpc_pmem_pool_info_decoders),
	258	&req)) {
	259	SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
	260	goto invalid;
	261	}
	262
	263	pbp = pmemblk_open(req.pmem_file, 0);
	264	if (pbp == NULL) {
	265	goto invalid;
	266	}
	267
	268	block_size = pmemblk_bsize(pbp);
	269	num_blocks = pmemblk_nblock(pbp);
	270
	271
	272	pmemblk_close(pbp);
	273
	274	/* Check pmem pool consistency */
275	if (pmemblk_check(req.pmem_file, block_size) != 1) {
276	goto invalid;
277	}
278
279	w = spdk_jsonrpc_begin_result(request);
280	if (w == NULL) {
281	free_rpc_pmem_pool_info(&req);
282	return;
283	}
284
285	spdk_json_write_array_begin(w);
286	spdk_json_write_object_begin(w);
9f95a23c TL	287	spdk_json_write_named_uint64(w, "num_blocks", num_blocks);
9f95a23c TL	288	spdk_json_write_named_uint64(w, "block_size", block_size);
11fdf7f2 TL	289	spdk_json_write_object_end(w);
	290	spdk_json_write_array_end(w);
	291	spdk_jsonrpc_end_result(request, w);
	292	free_rpc_pmem_pool_info(&req);
	293	return;
	294
	295	invalid:
	296	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	297	free_rpc_pmem_pool_info(&req);
	298	}
	299	SPDK_RPC_REGISTER("pmem_pool_info", spdk_rpc_pmem_pool_info, SPDK_RPC_RUNTIME)
	300
	301	struct rpc_delete_pmem_pool {
	302	char *pmem_file;
	303	};
	304
	305	static const struct spdk_json_object_decoder rpc_delete_pmem_pool_decoders[] = {
	306	{"pmem_file", offsetof(struct rpc_delete_pmem_pool, pmem_file), spdk_json_decode_string},
	307	};
	308
	309	static void
	310	free_rpc_delete_pmem_pool(struct rpc_delete_pmem_pool *req)
	311	{
	312	free(req->pmem_file);
	313	}
	314
	315	static void
	316	spdk_rpc_delete_pmem_pool(struct spdk_jsonrpc_request *request,
	317	const struct spdk_json_val *params)
	318	{
	319	struct rpc_delete_pmem_pool req = {};
	320	struct spdk_json_write_ctx *w;
9f95a23c	321	int rc;
11fdf7f2 TL	322
	323	if (spdk_json_decode_object(params, rpc_delete_pmem_pool_decoders,
	324	SPDK_COUNTOF(rpc_delete_pmem_pool_decoders),
	325	&req)) {
	326	SPDK_DEBUGLOG(SPDK_LOG_BDEV_PMEM, "spdk_json_decode_object failed\n");
	327	goto invalid;
	328	}
	329
	330	/* Check if file is actually pmem pool */
9f95a23c TL	331	rc = pmemblk_check(req.pmem_file, 0);
	332	if (rc != 1) {
	333	const char *msg = pmemblk_errormsg();
	334
	335	SPDK_ERRLOG("pmemblk_check() failed (%d): %s\n", rc, msg ? msg : "(logs disabled)");
11fdf7f2 TL	336	goto invalid;
	337	}
	338
	339	unlink(req.pmem_file);
	340
	341	w = spdk_jsonrpc_begin_result(request);
	342	if (w == NULL) {
	343	free_rpc_delete_pmem_pool(&req);
	344	return;
	345	}
	346
	347	spdk_json_write_bool(w, true);
	348	spdk_jsonrpc_end_result(request, w);
	349	free_rpc_delete_pmem_pool(&req);
	350	return;
	351
	352	invalid:
	353	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
	354	free_rpc_delete_pmem_pool(&req);
	355	}
	356	SPDK_RPC_REGISTER("delete_pmem_pool", spdk_rpc_delete_pmem_pool, SPDK_RPC_RUNTIME)