"Talks have begun over extending Darren's deal, but we know there is a great deal of interest," said Cody.
"Darren's enjoyed himself at Cardiff and that's why talks have begun over a new deal.
"But, when you have big clubs looking, it's something that needs to be considered. We'll have to see what Dave Jones has to say."
Teams like Sheffield Utd, Charlton and Wigan have been linked.