Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 627 insertions, 0 deletions

diff --git a/src/spdk/lib/bdev/rpc/Makefile b/src/spdk/lib/bdev/rpc/Makefile
new file mode 100644
index 00000000..4c1fcc0c
--- /dev/null
+++ b/src/spdk/lib/bdev/rpc/Makefile
@@ -0,0 +1,40 @@
+#
+#  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.
+#
+
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../..)
+include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
+
+C_SRCS = bdev_rpc.c
+LIBNAME = bdev_rpc
+
+include $(SPDK_ROOT_DIR)/mk/spdk.lib.mk
diff --git a/src/spdk/lib/bdev/rpc/bdev_rpc.c b/src/spdk/lib/bdev/rpc/bdev_rpc.c
new file mode 100644
index 00000000..1989f6d2
--- /dev/null
+++ b/src/spdk/lib/bdev/rpc/bdev_rpc.c
@@ -0,0 +1,587 @@
+/*-
+ *   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/env.h"
+#include "spdk/log.h"
+#include "spdk/rpc.h"
+#include "spdk/string.h"
+#include "spdk/util.h"
+
+#include "spdk/bdev_module.h"
+
+struct rpc_get_bdevs_iostat_ctx {
+	int bdev_count;
+	struct spdk_jsonrpc_request *request;
+	struct spdk_json_write_ctx *w;
+};
+
+static void
+spdk_rpc_get_bdevs_iostat_cb(struct spdk_bdev *bdev,
+			     struct spdk_bdev_io_stat *stat, void *cb_arg, int rc)
+{
+	struct rpc_get_bdevs_iostat_ctx *ctx = cb_arg;
+	struct spdk_json_write_ctx *w = ctx->w;
+	const char *bdev_name;
+
+	if (rc != 0) {
+		goto done;
+	}
+
+	bdev_name = spdk_bdev_get_name(bdev);
+	if (bdev_name != NULL) {
+		spdk_json_write_object_begin(w);
+
+		spdk_json_write_name(w, "name");
+		spdk_json_write_string(w, bdev_name);
+
+		spdk_json_write_name(w, "bytes_read");
+		spdk_json_write_uint64(w, stat->bytes_read);
+
+		spdk_json_write_name(w, "num_read_ops");
+		spdk_json_write_uint64(w, stat->num_read_ops);
+
+		spdk_json_write_name(w, "bytes_written");
+		spdk_json_write_uint64(w, stat->bytes_written);
+
+		spdk_json_write_name(w, "num_write_ops");
+		spdk_json_write_uint64(w, stat->num_write_ops);
+
+		spdk_json_write_name(w, "read_latency_ticks");
+		spdk_json_write_uint64(w, stat->read_latency_ticks);
+
+		spdk_json_write_name(w, "write_latency_ticks");
+		spdk_json_write_uint64(w, stat->write_latency_ticks);
+
+		if (spdk_bdev_get_qd_sampling_period(bdev)) {
+			spdk_json_write_name(w, "queue_depth_polling_period");
+			spdk_json_write_uint64(w, spdk_bdev_get_qd_sampling_period(bdev));
+
+			spdk_json_write_name(w, "queue_depth");
+			spdk_json_write_uint64(w, spdk_bdev_get_qd(bdev));
+
+			spdk_json_write_name(w, "io_time");
+			spdk_json_write_uint64(w, spdk_bdev_get_io_time(bdev));
+
+			spdk_json_write_name(w, "weighted_io_time");
+			spdk_json_write_uint64(w, spdk_bdev_get_weighted_io_time(bdev));
+		}
+
+		spdk_json_write_object_end(w);
+	}
+
+done:
+	free(stat);
+	if (--ctx->bdev_count == 0) {
+		spdk_json_write_array_end(ctx->w);
+		spdk_jsonrpc_end_result(ctx->request, ctx->w);
+		free(ctx);
+	}
+}
+
+struct rpc_get_bdevs_iostat {
+	char *name;
+};
+
+static void
+free_rpc_get_bdevs_iostat(struct rpc_get_bdevs_iostat *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder rpc_get_bdevs_iostat_decoders[] = {
+	{"name", offsetof(struct rpc_get_bdevs_iostat, name), spdk_json_decode_string, true},
+};
+
+static void
+spdk_rpc_get_bdevs_iostat(struct spdk_jsonrpc_request *request,
+			  const struct spdk_json_val *params)
+{
+	struct rpc_get_bdevs_iostat req = {};
+	struct spdk_bdev *bdev = NULL;
+	struct spdk_json_write_ctx *w;
+	struct spdk_bdev_io_stat *stat;
+	struct rpc_get_bdevs_iostat_ctx *ctx;
+
+	if (params != NULL) {
+		if (spdk_json_decode_object(params, rpc_get_bdevs_iostat_decoders,
+					    SPDK_COUNTOF(rpc_get_bdevs_iostat_decoders),
+					    &req)) {
+			SPDK_ERRLOG("spdk_json_decode_object failed\n");
+			goto invalid;
+		}
+
+		if (req.name) {
+			bdev = spdk_bdev_get_by_name(req.name);
+			if (bdev == NULL) {
+				SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
+				goto invalid;
+			}
+		}
+	}
+
+	free_rpc_get_bdevs_iostat(&req);
+
+	ctx = calloc(1, sizeof(struct rpc_get_bdevs_iostat_ctx));
+	if (ctx == NULL) {
+		SPDK_ERRLOG("Failed to allocate rpc_get_bdevs_iostat_ctx struct\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "No memory left");
+		return;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	if (w == NULL) {
+		free(ctx);
+		return;
+	}
+
+	/*
+	 * Increment initial bdev_count so that it will never reach 0 in the middle
+	 * of iterating.
+	 */
+	ctx->bdev_count++;
+	ctx->request = request;
+	ctx->w = w;
+
+	spdk_json_write_array_begin(w);
+
+	spdk_json_write_object_begin(w);
+	spdk_json_write_name(w, "tick_rate");
+	spdk_json_write_uint64(w, spdk_get_ticks_hz());
+	spdk_json_write_object_end(w);
+
+	if (bdev != NULL) {
+		stat = calloc(1, sizeof(struct spdk_bdev_io_stat));
+		if (stat == NULL) {
+			SPDK_ERRLOG("Failed to allocate rpc_get_bdevs_iostat_ctx struct\n");
+		} else {
+			ctx->bdev_count++;
+			spdk_bdev_get_device_stat(bdev, stat, spdk_rpc_get_bdevs_iostat_cb, ctx);
+		}
+	} else {
+		for (bdev = spdk_bdev_first(); bdev != NULL; bdev = spdk_bdev_next(bdev)) {
+			stat = calloc(1, sizeof(struct spdk_bdev_io_stat));
+			if (stat == NULL) {
+				SPDK_ERRLOG("Failed to allocate spdk_bdev_io_stat struct\n");
+				break;
+			}
+			ctx->bdev_count++;
+			spdk_bdev_get_device_stat(bdev, stat, spdk_rpc_get_bdevs_iostat_cb, ctx);
+		}
+	}
+
+	if (--ctx->bdev_count == 0) {
+		spdk_json_write_array_end(w);
+		spdk_jsonrpc_end_result(request, w);
+		free(ctx);
+	}
+
+	return;
+
+invalid:
+	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
+
+	free_rpc_get_bdevs_iostat(&req);
+}
+SPDK_RPC_REGISTER("get_bdevs_iostat", spdk_rpc_get_bdevs_iostat, SPDK_RPC_RUNTIME)
+
+static void
+spdk_rpc_dump_bdev_info(struct spdk_json_write_ctx *w,
+			struct spdk_bdev *bdev)
+{
+	struct spdk_bdev_alias *tmp;
+	uint64_t qos_limits[SPDK_BDEV_QOS_NUM_RATE_LIMIT_TYPES];
+	int i;
+
+	spdk_json_write_object_begin(w);
+
+	spdk_json_write_name(w, "name");
+	spdk_json_write_string(w, spdk_bdev_get_name(bdev));
+
+	spdk_json_write_name(w, "aliases");
+	spdk_json_write_array_begin(w);
+
+	TAILQ_FOREACH(tmp, spdk_bdev_get_aliases(bdev), tailq) {
+		spdk_json_write_string(w, tmp->alias);
+	}
+
+	spdk_json_write_array_end(w);
+
+	spdk_json_write_name(w, "product_name");
+	spdk_json_write_string(w, spdk_bdev_get_product_name(bdev));
+
+	spdk_json_write_name(w, "block_size");
+	spdk_json_write_uint32(w, spdk_bdev_get_block_size(bdev));
+
+	spdk_json_write_name(w, "num_blocks");
+	spdk_json_write_uint64(w, spdk_bdev_get_num_blocks(bdev));
+
+	if (!spdk_mem_all_zero(&bdev->uuid, sizeof(bdev->uuid))) {
+		char uuid_str[SPDK_UUID_STRING_LEN];
+
+		spdk_uuid_fmt_lower(uuid_str, sizeof(uuid_str), &bdev->uuid);
+		spdk_json_write_named_string(w, "uuid", uuid_str);
+	}
+
+	spdk_json_write_name(w, "assigned_rate_limits");
+	spdk_json_write_object_begin(w);
+	spdk_bdev_get_qos_rate_limits(bdev, qos_limits);
+	for (i = 0; i < SPDK_BDEV_QOS_NUM_RATE_LIMIT_TYPES; i++) {
+		spdk_json_write_name(w, spdk_bdev_get_qos_rpc_type(i));
+		spdk_json_write_uint64(w, qos_limits[i]);
+	}
+	spdk_json_write_object_end(w);
+
+	spdk_json_write_name(w, "claimed");
+	spdk_json_write_bool(w, (bdev->internal.claim_module != NULL));
+
+	spdk_json_write_name(w, "supported_io_types");
+	spdk_json_write_object_begin(w);
+	spdk_json_write_name(w, "read");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_READ));
+	spdk_json_write_name(w, "write");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_WRITE));
+	spdk_json_write_name(w, "unmap");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_UNMAP));
+	spdk_json_write_name(w, "write_zeroes");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_WRITE_ZEROES));
+	spdk_json_write_name(w, "flush");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH));
+	spdk_json_write_name(w, "reset");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_RESET));
+	spdk_json_write_name(w, "nvme_admin");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_NVME_ADMIN));
+	spdk_json_write_name(w, "nvme_io");
+	spdk_json_write_bool(w, spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_NVME_IO));
+	spdk_json_write_object_end(w);
+
+	spdk_json_write_name(w, "driver_specific");
+	spdk_json_write_object_begin(w);
+	spdk_bdev_dump_info_json(bdev, w);
+	spdk_json_write_object_end(w);
+
+	spdk_json_write_object_end(w);
+}
+
+struct rpc_get_bdevs {
+	char *name;
+};
+
+static void
+free_rpc_get_bdevs(struct rpc_get_bdevs *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder rpc_get_bdevs_decoders[] = {
+	{"name", offsetof(struct rpc_get_bdevs, name), spdk_json_decode_string, true},
+};
+
+static void
+spdk_rpc_get_bdevs(struct spdk_jsonrpc_request *request,
+		   const struct spdk_json_val *params)
+{
+	struct rpc_get_bdevs req = {};
+	struct spdk_json_write_ctx *w;
+	struct spdk_bdev *bdev = NULL;
+
+	if (params && spdk_json_decode_object(params, rpc_get_bdevs_decoders,
+					      SPDK_COUNTOF(rpc_get_bdevs_decoders),
+					      &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		goto invalid;
+	}
+
+	if (req.name) {
+		bdev = spdk_bdev_get_by_name(req.name);
+		if (bdev == NULL) {
+			SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
+			goto invalid;
+		}
+	}
+
+	free_rpc_get_bdevs(&req);
+	w = spdk_jsonrpc_begin_result(request);
+	if (w == NULL) {
+		return;
+	}
+
+	spdk_json_write_array_begin(w);
+
+	if (bdev != NULL) {
+		spdk_rpc_dump_bdev_info(w, bdev);
+	} else {
+		for (bdev = spdk_bdev_first(); bdev != NULL; bdev = spdk_bdev_next(bdev)) {
+			spdk_rpc_dump_bdev_info(w, bdev);
+		}
+	}
+
+	spdk_json_write_array_end(w);
+
+	spdk_jsonrpc_end_result(request, w);
+
+	return;
+
+invalid:
+	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
+
+	free_rpc_get_bdevs(&req);
+}
+SPDK_RPC_REGISTER("get_bdevs", spdk_rpc_get_bdevs, SPDK_RPC_RUNTIME)
+
+struct rpc_delete_bdev {
+	char *name;
+};
+
+static void
+free_rpc_delete_bdev(struct rpc_delete_bdev *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder rpc_delete_bdev_decoders[] = {
+	{"name", offsetof(struct rpc_delete_bdev, name), spdk_json_decode_string},
+};
+
+static void
+_spdk_rpc_delete_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_bdev(struct spdk_jsonrpc_request *request,
+		     const struct spdk_json_val *params)
+{
+	struct rpc_delete_bdev req = {};
+	struct spdk_bdev *bdev;
+
+	if (spdk_json_decode_object(params, rpc_delete_bdev_decoders,
+				    SPDK_COUNTOF(rpc_delete_bdev_decoders),
+				    &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		goto invalid;
+	}
+
+	if (req.name == NULL) {
+		SPDK_ERRLOG("missing name param\n");
+		goto invalid;
+	}
+
+	bdev = spdk_bdev_get_by_name(req.name);
+	if (bdev == NULL) {
+		SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
+		goto invalid;
+	}
+
+	spdk_bdev_unregister(bdev, _spdk_rpc_delete_bdev_cb, request);
+
+	free_rpc_delete_bdev(&req);
+
+	return;
+
+invalid:
+	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
+	free_rpc_delete_bdev(&req);
+}
+SPDK_RPC_REGISTER("delete_bdev", spdk_rpc_delete_bdev, SPDK_RPC_RUNTIME)
+
+struct rpc_set_bdev_qd_sampling_period {
+	char *name;
+	uint64_t period;
+};
+
+static void
+free_rpc_set_bdev_qd_sampling_period(struct rpc_set_bdev_qd_sampling_period *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder
+	rpc_set_bdev_qd_sampling_period_decoders[] = {
+	{"name", offsetof(struct rpc_set_bdev_qd_sampling_period, name), spdk_json_decode_string},
+	{"period", offsetof(struct rpc_set_bdev_qd_sampling_period, period), spdk_json_decode_uint64},
+};
+
+static void
+spdk_rpc_set_bdev_qd_sampling_period(struct spdk_jsonrpc_request *request,
+				     const struct spdk_json_val *params)
+{
+	struct rpc_set_bdev_qd_sampling_period req = {0};
+	struct spdk_bdev *bdev;
+	struct spdk_json_write_ctx *w;
+
+	req.period = UINT64_MAX;
+
+	if (spdk_json_decode_object(params, rpc_set_bdev_qd_sampling_period_decoders,
+				    SPDK_COUNTOF(rpc_set_bdev_qd_sampling_period_decoders),
+				    &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		goto invalid;
+	}
+
+	if (req.name) {
+		bdev = spdk_bdev_get_by_name(req.name);
+		if (bdev == NULL) {
+			SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
+			goto invalid;
+		}
+	} else {
+		SPDK_ERRLOG("Missing name param\n");
+		goto invalid;
+	}
+
+	if (req.period == UINT64_MAX) {
+		SPDK_ERRLOG("Missing period param");
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	spdk_bdev_set_qd_sampling_period(bdev, req.period);
+
+	spdk_json_write_bool(w, true);
+	spdk_jsonrpc_end_result(request, w);
+	free_rpc_set_bdev_qd_sampling_period(&req);
+	return;
+
+invalid:
+	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
+	free_rpc_set_bdev_qd_sampling_period(&req);
+	return;
+}
+SPDK_RPC_REGISTER("set_bdev_qd_sampling_period",
+		  spdk_rpc_set_bdev_qd_sampling_period,
+		  SPDK_RPC_RUNTIME)
+
+struct rpc_set_bdev_qos_limit {
+	char		*name;
+	uint64_t	limits[SPDK_BDEV_QOS_NUM_RATE_LIMIT_TYPES];
+};
+
+static void
+free_rpc_set_bdev_qos_limit(struct rpc_set_bdev_qos_limit *r)
+{
+	free(r->name);
+}
+
+static const struct spdk_json_object_decoder rpc_set_bdev_qos_limit_decoders[] = {
+	{"name", offsetof(struct rpc_set_bdev_qos_limit, name), spdk_json_decode_string},
+	{
+		"rw_ios_per_sec", offsetof(struct rpc_set_bdev_qos_limit,
+					   limits[SPDK_BDEV_QOS_RW_IOPS_RATE_LIMIT]),
+		spdk_json_decode_uint64, true
+	},
+	{
+		"rw_mbytes_per_sec", offsetof(struct rpc_set_bdev_qos_limit,
+					      limits[SPDK_BDEV_QOS_RW_BPS_RATE_LIMIT]),
+		spdk_json_decode_uint64, true
+	},
+};
+
+static void
+spdk_rpc_set_bdev_qos_limit_complete(void *cb_arg, int status)
+{
+	struct spdk_jsonrpc_request *request = cb_arg;
+	struct spdk_json_write_ctx *w;
+
+	if (status != 0) {
+		spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
+						     "Failed to configure rate limit: %s",
+						     spdk_strerror(-status));
+		return;
+	}
+
+	w = spdk_jsonrpc_begin_result(request);
+	if (w == NULL) {
+		return;
+	}
+
+	spdk_json_write_bool(w, true);
+	spdk_jsonrpc_end_result(request, w);
+}
+
+static void
+spdk_rpc_set_bdev_qos_limit(struct spdk_jsonrpc_request *request,
+			    const struct spdk_json_val *params)
+{
+	struct rpc_set_bdev_qos_limit req = {NULL, {UINT64_MAX, UINT64_MAX}};
+	struct spdk_bdev *bdev;
+	bool valid_limit = false;
+	int i;
+
+	if (spdk_json_decode_object(params, rpc_set_bdev_qos_limit_decoders,
+				    SPDK_COUNTOF(rpc_set_bdev_qos_limit_decoders),
+				    &req)) {
+		SPDK_ERRLOG("spdk_json_decode_object failed\n");
+		goto invalid;
+	}
+
+	bdev = spdk_bdev_get_by_name(req.name);
+	if (bdev == NULL) {
+		SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
+						 "Bdev does not exist");
+		goto exit;
+	}
+
+	for (i = 0; i < SPDK_BDEV_QOS_NUM_RATE_LIMIT_TYPES; i++) {
+		if (req.limits[i] != UINT64_MAX) {
+			valid_limit = true;
+		}
+	}
+
+	if (valid_limit == false) {
+		SPDK_ERRLOG("no rate limits specified\n");
+		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
+						 "No rate limits specified");
+		goto exit;
+	}
+
+	free_rpc_set_bdev_qos_limit(&req);
+	spdk_bdev_set_qos_rate_limits(bdev, req.limits, spdk_rpc_set_bdev_qos_limit_complete, request);
+	return;
+
+invalid:
+	spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
+exit:
+	free_rpc_set_bdev_qos_limit(&req);
+}
+
+SPDK_RPC_REGISTER("set_bdev_qos_limit", spdk_rpc_set_bdev_qos_limit, SPDK_RPC_RUNTIME)