1 files changed, 252 insertions, 0 deletions
diff --git a/src/spdk/module/bdev/compress/vbdev_compress_rpc.c b/src/spdk/module/bdev/compress/vbdev_compress_rpc.c
new file mode 100644
index 000000000..9eedae066
--- /dev/null
+++ b/src/spdk/module/bdev/compress/vbdev_compress_rpc.c
@@ -0,0 +1,252 @@
+/*-
+ *   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_compress.h"
+#include "spdk/rpc.h"
+#include "spdk/util.h"
+#include "spdk/string.h"
+#include "spdk_internal/log.h"
+
+struct rpc_bdev_compress_get_orphans {
+	char *name;
+};
+
+static void
+free_rpc_bdev_compress_get_orphans(struct rpc_bdev_compress_get_orphans *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder rpc_bdev_compress_get_orphans_decoders[] = {
+	{"name", offsetof(struct rpc_bdev_compress_get_orphans, name), spdk_json_decode_string, true},
+};
+
+static void
+rpc_bdev_compress_get_orphans(struct spdk_jsonrpc_request *request,
+			      const struct spdk_json_val *params)
+{
+	struct rpc_bdev_compress_get_orphans req = {};
+	struct spdk_json_write_ctx *w;
+	struct vbdev_compress *comp_bdev;
+	bool found = false;
+
+
+	if (params && spdk_json_decode_object(params, rpc_bdev_compress_get_orphans_decoders,
+					      SPDK_COUNTOF(rpc_bdev_compress_get_orphans_decoders),
+					      &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
+						 "spdk_json_decode_object failed");
+		free_rpc_bdev_compress_get_orphans(&req);
+		return;
+	}
+
+	if (req.name) {
+		if (compress_has_orphan(req.name) == false) {
+			spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
+			free_rpc_bdev_compress_get_orphans(&req);
+			return;
+		}
+		found = true;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	spdk_json_write_array_begin(w);
+	if (found) {
+		spdk_json_write_string(w, req.name);
+	} else {
+		for (comp_bdev = compress_bdev_first(); comp_bdev != NULL;
+		     comp_bdev = compress_bdev_next(comp_bdev)) {
+			if (compress_has_orphan(compress_get_name(comp_bdev))) {
+				spdk_json_write_string(w, compress_get_name(comp_bdev));
+			}
+		}
+	}
+	spdk_json_write_array_end(w);
+	spdk_jsonrpc_end_result(request, w);
+	free_rpc_bdev_compress_get_orphans(&req);
+}
+SPDK_RPC_REGISTER("bdev_compress_get_orphans", rpc_bdev_compress_get_orphans, SPDK_RPC_RUNTIME)
+
+struct rpc_compress_set_pmd {
+	enum compress_pmd pmd;
+};
+
+static const struct spdk_json_object_decoder rpc_compress_pmd_decoder[] = {
+	{"pmd", offsetof(struct rpc_compress_set_pmd, pmd), spdk_json_decode_int32},
+};
+
+static void
+rpc_compress_set_pmd(struct spdk_jsonrpc_request *request,
+		     const struct spdk_json_val *params)
+{
+	struct rpc_compress_set_pmd req;
+	struct spdk_json_write_ctx *w;
+	int rc = 0;
+
+	if (spdk_json_decode_object(params, rpc_compress_pmd_decoder,
+				    SPDK_COUNTOF(rpc_compress_pmd_decoder),
+				    &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
+						 "spdk_json_decode_object failed");
+		return;
+	}
+
+	if (req.pmd >= COMPRESS_PMD_MAX) {
+		spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
+						     "PMD value %d should be less than %d", req.pmd, COMPRESS_PMD_MAX);
+		return;
+	}
+
+	rc = compress_set_pmd(&req.pmd);
+	if (rc) {
+		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
+		return;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	if (w != NULL) {
+		spdk_json_write_bool(w, true);
+		spdk_jsonrpc_end_result(request, w);
+	}
+}
+SPDK_RPC_REGISTER("compress_set_pmd", rpc_compress_set_pmd,
+		  SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)
+SPDK_RPC_REGISTER_ALIAS_DEPRECATED(compress_set_pmd, set_compress_pmd)
+
+/* Structure to hold the parameters for this RPC method. */
+struct rpc_construct_compress {
+	char *base_bdev_name;
+	char *pm_path;
+	uint32_t lb_size;
+};
+
+/* Free the allocated memory resource after the RPC handling. */
+static void
+free_rpc_construct_compress(struct rpc_construct_compress *r)
+{
+	free(r->base_bdev_name);
+	free(r->pm_path);
+}
+
+/* Structure to decode the input parameters for this RPC method. */
+static const struct spdk_json_object_decoder rpc_construct_compress_decoders[] = {
+	{"base_bdev_name", offsetof(struct rpc_construct_compress, base_bdev_name), spdk_json_decode_string},
+	{"pm_path", offsetof(struct rpc_construct_compress, pm_path), spdk_json_decode_string},
+	{"lb_size", offsetof(struct rpc_construct_compress, lb_size), spdk_json_decode_uint32},
+};
+
+/* Decode the parameters for this RPC method and properly construct the compress
+ * device. Error status returned in the failed cases.
+ */
+static void
+rpc_bdev_compress_create(struct spdk_jsonrpc_request *request,
+			 const struct spdk_json_val *params)
+{
+	struct rpc_construct_compress req = {NULL};
+	struct spdk_json_write_ctx *w;
+	char *name;
+	int rc;
+
+	if (spdk_json_decode_object(params, rpc_construct_compress_decoders,
+				    SPDK_COUNTOF(rpc_construct_compress_decoders),
+				    &req)) {
+		SPDK_DEBUGLOG(SPDK_LOG_VBDEV_COMPRESS, "spdk_json_decode_object failed\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_PARSE_ERROR,
+						 "spdk_json_decode_object failed");
+		goto cleanup;
+	}
+
+	rc = create_compress_bdev(req.base_bdev_name, req.pm_path, req.lb_size);
+	if (rc != 0) {
+		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
+		goto cleanup;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	name = spdk_sprintf_alloc("COMP_%s", req.base_bdev_name);
+	spdk_json_write_string(w, name);
+	spdk_jsonrpc_end_result(request, w);
+	free(name);
+
+cleanup:
+	free_rpc_construct_compress(&req);
+}
+SPDK_RPC_REGISTER("bdev_compress_create", rpc_bdev_compress_create, SPDK_RPC_RUNTIME)
+SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_compress_create, construct_compress_bdev)
+
+struct rpc_delete_compress {
+	char *name;
+};
+
+static void
+free_rpc_delete_compress(struct rpc_delete_compress *req)
+{
+	free(req->name);
+}
+
+static const struct spdk_json_object_decoder rpc_delete_compress_decoders[] = {
+	{"name", offsetof(struct rpc_delete_compress, name), spdk_json_decode_string},
+};
+
+static void
+_rpc_bdev_compress_delete_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);
+	spdk_json_write_bool(w, bdeverrno == 0);
+	spdk_jsonrpc_end_result(request, w);
+}
+
+static void
+rpc_bdev_compress_delete(struct spdk_jsonrpc_request *request,
+			 const struct spdk_json_val *params)
+{
+	struct rpc_delete_compress req = {NULL};
+
+	if (spdk_json_decode_object(params, rpc_delete_compress_decoders,
+				    SPDK_COUNTOF(rpc_delete_compress_decoders),
+				    &req)) {
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
+						 "spdk_json_decode_object failed");
+	} else {
+		bdev_compress_delete(req.name, _rpc_bdev_compress_delete_cb, request);
+	}
+
+	free_rpc_delete_compress(&req);
+}
+SPDK_RPC_REGISTER("bdev_compress_delete", rpc_bdev_compress_delete, SPDK_RPC_RUNTIME)
+SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_compress_delete, delete_compress_bdev)