[#1700] config: Move config struct to qos package

Change-Id: Ie642fff5cd1702cda00425628e11f3fd8c514798
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

internal/qos/config.go

@@ -0,0 +1,31 @@
+package qos
+
+import (
+	"math"
+	"time"
+)
+
+const (
+	NoLimit            int64 = math.MaxInt64
+	DefaultIdleTimeout       = 5 * time.Minute
+)
+
+type LimiterConfig struct {
+	Read  OpConfig
+	Write OpConfig
+}
+
+type OpConfig struct {
+	MaxWaitingOps int64
+	MaxRunningOps int64
+	IdleTimeout   time.Duration
+	Tags          []IOTagConfig
+}
+
+type IOTagConfig struct {
+	Tag         string
+	Weight      *float64
+	LimitOps    *float64
+	ReservedOps *float64
+	Prohibited  bool
+}