Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/dpdk/dpdk_cmds.go

@@ -0,0 +1,55 @@
+//go:build linux
+
+package dpdk
+
+import (
+	"fmt"
+	"strings"
+)
+
+type linkStatus int64
+
+const (
+	down linkStatus = iota
+	up
+)
+
+const (
+	ethdevLinkStatusCommand    = "/ethdev/link_status"
+	linkStatusStringFieldName  = "status"
+	linkStatusIntegerFieldName = "link_status"
+)
+
+var (
+	linkStatusMap = map[string]linkStatus{
+		"down": down,
+		"up":   up,
+	}
+)
+
+func processCommandResponse(command string, data map[string]interface{}) error {
+	if command == ethdevLinkStatusCommand {
+		return processLinkStatusCmd(data)
+	}
+	return nil
+}
+
+func processLinkStatusCmd(data map[string]interface{}) error {
+	status, ok := data[linkStatusStringFieldName].(string)
+	if !ok {
+		return fmt.Errorf("can't find or parse %q field", linkStatusStringFieldName)
+	}
+
+	parsedLinkStatus, ok := parseLinkStatus(status)
+	if !ok {
+		return fmt.Errorf("can't parse linkStatus: unknown value: %q", status)
+	}
+
+	data[linkStatusIntegerFieldName] = int64(parsedLinkStatus)
+	return nil
+}
+
+func parseLinkStatus(s string) (linkStatus, bool) {
+	value, ok := linkStatusMap[strings.ToLower(s)]
+	return value, ok
+}