aef00d4420
The malloc bdev module supports both of interleaved and separated metadata in this patch. Different from the NULL bdev module, opts->block_size is a data block size and a block size is caculated internally as a sum of opts->block_size and opts->md_size if opts->md_interleave is true, or opts->block_size otherwise. This will be more intuitive. Additionally, opts->md_size accepts only either of 0, 8, 16, 32, 64, or 128. Protection information (T10 DIF/DIX) will be supported in the following patches. Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Change-Id: Icd9e92c8ea94e30139e416f8c533ab4cf473d2a8 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14984 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Community-CI: Mellanox Build Bot
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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* Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#include "bdev_malloc.h"
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#include "spdk/rpc.h"
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#include "spdk/string.h"
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#include "spdk/log.h"
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static void
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free_rpc_construct_malloc(struct malloc_bdev_opts *r)
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{
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free(r->name);
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}
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static int
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decode_mdisk_uuid(const struct spdk_json_val *val, void *out)
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{
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char *str = NULL;
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int rc;
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rc = spdk_json_decode_string(val, &str);
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if (rc == 0) {
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rc = spdk_uuid_parse(out, str);
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}
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free(str);
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return rc;
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}
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static const struct spdk_json_object_decoder rpc_construct_malloc_decoders[] = {
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{"name", offsetof(struct malloc_bdev_opts, name), spdk_json_decode_string, true},
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{"uuid", offsetof(struct malloc_bdev_opts, uuid), decode_mdisk_uuid, true},
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{"num_blocks", offsetof(struct malloc_bdev_opts, num_blocks), spdk_json_decode_uint64},
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{"block_size", offsetof(struct malloc_bdev_opts, block_size), spdk_json_decode_uint32},
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{"optimal_io_boundary", offsetof(struct malloc_bdev_opts, optimal_io_boundary), spdk_json_decode_uint32, true},
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{"md_size", offsetof(struct malloc_bdev_opts, md_size), spdk_json_decode_uint32, true},
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{"md_interleave", offsetof(struct malloc_bdev_opts, md_interleave), spdk_json_decode_bool, true},
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};
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static void
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rpc_bdev_malloc_create(struct spdk_jsonrpc_request *request,
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const struct spdk_json_val *params)
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{
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struct malloc_bdev_opts req = {NULL};
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struct spdk_json_write_ctx *w;
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struct spdk_bdev *bdev;
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int rc = 0;
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if (spdk_json_decode_object(params, rpc_construct_malloc_decoders,
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SPDK_COUNTOF(rpc_construct_malloc_decoders),
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&req)) {
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SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n");
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spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
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"spdk_json_decode_object failed");
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goto cleanup;
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}
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rc = create_malloc_disk(&bdev, &req);
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if (rc) {
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spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
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goto cleanup;
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}
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free_rpc_construct_malloc(&req);
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w = spdk_jsonrpc_begin_result(request);
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spdk_json_write_string(w, spdk_bdev_get_name(bdev));
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spdk_jsonrpc_end_result(request, w);
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return;
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cleanup:
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free_rpc_construct_malloc(&req);
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}
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SPDK_RPC_REGISTER("bdev_malloc_create", rpc_bdev_malloc_create, SPDK_RPC_RUNTIME)
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struct rpc_delete_malloc {
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char *name;
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};
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static void
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free_rpc_delete_malloc(struct rpc_delete_malloc *r)
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{
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free(r->name);
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}
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static const struct spdk_json_object_decoder rpc_delete_malloc_decoders[] = {
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{"name", offsetof(struct rpc_delete_malloc, name), spdk_json_decode_string},
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};
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static void
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rpc_bdev_malloc_delete_cb(void *cb_arg, int bdeverrno)
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{
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struct spdk_jsonrpc_request *request = cb_arg;
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if (bdeverrno == 0) {
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spdk_jsonrpc_send_bool_response(request, true);
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} else {
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spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
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}
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}
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static void
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rpc_bdev_malloc_delete(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_delete_malloc req = {NULL};
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if (spdk_json_decode_object(params, rpc_delete_malloc_decoders,
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SPDK_COUNTOF(rpc_delete_malloc_decoders),
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&req)) {
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SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n");
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spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
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"spdk_json_decode_object failed");
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goto cleanup;
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}
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delete_malloc_disk(req.name, rpc_bdev_malloc_delete_cb, request);
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cleanup:
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free_rpc_delete_malloc(&req);
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}
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SPDK_RPC_REGISTER("bdev_malloc_delete", rpc_bdev_malloc_delete, SPDK_RPC_RUNTIME)
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