Commit b8681aa6 authored Dec 29, 2017 by GangCao Committed by Daniel Verkamp Apr 20, 2018

bdev/qos: add the QoS information on RPC get_bdevs interface



Change-Id: I515a08ce95ffd6fea4d5f4fab42e6d09bcdd11f7
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/393278


Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

parent 83795a16

include/spdk/bdev.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -299,6 +299,16 @@ uint32_t spdk_bdev_get_block_size(const struct spdk_bdev *bdev);
		*/
		uint64_t spdk_bdev_get_num_blocks(const struct spdk_bdev *bdev);

		/**
		* Get IOs per second of block device for the QoS rate limiting.
		*
		* \param bdev Block device to query.
		* \return IOs per second.
		*
		* Return 0 for no QoS enforced on the queried block device.
		*/
		uint64_t spdk_bdev_get_qos_ios_per_sec(const struct spdk_bdev *bdev);

		/**
		* Get minimum I/O buffer address alignment for a bdev.
		*

lib/bdev/bdev.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1363,6 +1363,12 @@ spdk_bdev_get_num_blocks(const struct spdk_bdev *bdev)
		return bdev->blockcnt;
		}

		uint64_t
		spdk_bdev_get_qos_ios_per_sec(const struct spdk_bdev *bdev)
		{
		return bdev->ios_per_sec;
		}

		size_t
		spdk_bdev_get_buf_align(const struct spdk_bdev *bdev)
		{

lib/bdev/rpc/bdev_rpc.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -74,6 +74,9 @@ spdk_rpc_dump_bdev_info(struct spdk_json_write_ctx *w,
		spdk_json_write_named_string(w, "uuid", uuid_str);
		}

		spdk_json_write_name(w, "qos_ios_per_sec");
		spdk_json_write_uint64(w, spdk_bdev_get_qos_ios_per_sec(bdev));

		spdk_json_write_name(w, "claimed");
		spdk_json_write_bool(w, (bdev->claim_module != NULL));