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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 "spdk/rpc.h"
#include "spdk/util.h"
#include "spdk/bdev_module.h"
#include "spdk/string.h"
#include "spdk_internal/log.h"
#include "bdev_ftl.h"
struct rpc_bdev_ftl_create {
char *name;
char *base_bdev;
char *uuid;
char *cache_bdev;
struct spdk_ftl_conf ftl_conf;
};
static void
free_rpc_bdev_ftl_create(struct rpc_bdev_ftl_create *req)
{
free(req->name);
free(req->base_bdev);
free(req->uuid);
free(req->cache_bdev);
free((char *)req->ftl_conf.l2p_path);
}
static const struct spdk_json_object_decoder rpc_bdev_ftl_create_decoders[] = {
{"name", offsetof(struct rpc_bdev_ftl_create, name), spdk_json_decode_string},
{"base_bdev", offsetof(struct rpc_bdev_ftl_create, base_bdev), spdk_json_decode_string},
{"uuid", offsetof(struct rpc_bdev_ftl_create, uuid), spdk_json_decode_string, true},
{"cache", offsetof(struct rpc_bdev_ftl_create, cache_bdev), spdk_json_decode_string, true},
{
"allow_open_bands", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, allow_open_bands), spdk_json_decode_bool, true
},
{
"overprovisioning", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, lba_rsvd), spdk_json_decode_uint64, true
},
{
"use_append", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, use_append), spdk_json_decode_bool, true
},
{
"l2p_path", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, l2p_path),
spdk_json_decode_string, true
},
{
"limit_crit", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_CRIT]) +
offsetof(struct spdk_ftl_limit, limit),
spdk_json_decode_uint64, true
},
{
"limit_crit_threshold", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_CRIT]) +
offsetof(struct spdk_ftl_limit, thld),
spdk_json_decode_uint64, true
},
{
"limit_high", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_HIGH]) +
offsetof(struct spdk_ftl_limit, limit),
spdk_json_decode_uint64, true
},
{
"limit_high_threshold", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_HIGH]) +
offsetof(struct spdk_ftl_limit, thld),
spdk_json_decode_uint64, true
},
{
"limit_low", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_LOW]) +
offsetof(struct spdk_ftl_limit, limit),
spdk_json_decode_uint64, true
},
{
"limit_low_threshold", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_LOW]) +
offsetof(struct spdk_ftl_limit, thld),
spdk_json_decode_uint64, true
},
{
"limit_start", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_START]) +
offsetof(struct spdk_ftl_limit, limit),
spdk_json_decode_uint64, true
},
{
"limit_start_threshold", offsetof(struct rpc_bdev_ftl_create, ftl_conf) +
offsetof(struct spdk_ftl_conf, limits[SPDK_FTL_LIMIT_START]) +
offsetof(struct spdk_ftl_limit, thld),
spdk_json_decode_uint64, true
},
};
static void
rpc_bdev_ftl_create_cb(const struct ftl_bdev_info *bdev_info, void *ctx, int status)
{
struct spdk_jsonrpc_request *request = ctx;
char bdev_uuid[SPDK_UUID_STRING_LEN];
struct spdk_json_write_ctx *w;
if (status) {
spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
"Failed to create FTL bdev: %s",
spdk_strerror(-status));
return;
}
w = spdk_jsonrpc_begin_result(request);
spdk_uuid_fmt_lower(bdev_uuid, sizeof(bdev_uuid), &bdev_info->uuid);
spdk_json_write_object_begin(w);
spdk_json_write_named_string(w, "name", bdev_info->name);
spdk_json_write_named_string(w, "uuid", bdev_uuid);
spdk_json_write_object_end(w);
spdk_jsonrpc_end_result(request, w);
}
static void
rpc_bdev_ftl_create(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct rpc_bdev_ftl_create req = {};
struct ftl_bdev_init_opts opts = {};
struct spdk_json_write_ctx *w;
int rc;
spdk_ftl_conf_init_defaults(&req.ftl_conf);
if (spdk_json_decode_object(params, rpc_bdev_ftl_create_decoders,
SPDK_COUNTOF(rpc_bdev_ftl_create_decoders),
&req)) {
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"Invalid parameters");
goto invalid;
}
if (req.cache_bdev && !spdk_bdev_get_by_name(req.cache_bdev)) {
spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"No such bdev: %s", req.cache_bdev);
goto invalid;
}
opts.name = req.name;
opts.mode = SPDK_FTL_MODE_CREATE;
opts.base_bdev = req.base_bdev;
opts.cache_bdev = req.cache_bdev;
opts.ftl_conf = req.ftl_conf;
if (req.uuid) {
if (spdk_uuid_parse(&opts.uuid, req.uuid) < 0) {
spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"Failed to parse uuid: %s",
req.uuid);
goto invalid;
}
if (!spdk_mem_all_zero(&opts.uuid, sizeof(opts.uuid))) {
opts.mode &= ~SPDK_FTL_MODE_CREATE;
}
}
rc = bdev_ftl_create_bdev(&opts, rpc_bdev_ftl_create_cb, request);
if (rc) {
if (rc == -ENODEV) {
w = spdk_jsonrpc_begin_result(request);
spdk_json_write_string_fmt(w, "FTL bdev: %s creation deferred", req.name);
spdk_jsonrpc_end_result(request, w);
} else {
spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
"Failed to create FTL bdev: %s",
spdk_strerror(-rc));
}
goto invalid;
}
invalid:
free_rpc_bdev_ftl_create(&req);
}
SPDK_RPC_REGISTER("bdev_ftl_create", rpc_bdev_ftl_create, SPDK_RPC_RUNTIME)
SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_ftl_create, construct_ftl_bdev)
struct rpc_delete_ftl {
char *name;
};
static const struct spdk_json_object_decoder rpc_delete_ftl_decoders[] = {
{"name", offsetof(struct rpc_bdev_ftl_create, name), spdk_json_decode_string},
};
static void
rpc_bdev_ftl_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_ftl_delete(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct rpc_delete_ftl attrs = {};
if (spdk_json_decode_object(params, rpc_delete_ftl_decoders,
SPDK_COUNTOF(rpc_delete_ftl_decoders),
&attrs)) {
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"Invalid parameters");
goto invalid;
}
bdev_ftl_delete_bdev(attrs.name, rpc_bdev_ftl_delete_cb, request);
invalid:
free(attrs.name);
}
SPDK_RPC_REGISTER("bdev_ftl_delete", rpc_bdev_ftl_delete, SPDK_RPC_RUNTIME)
SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_ftl_delete, delete_ftl_bdev)
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