AVAIL_TD         1423 drivers/net/ethernet/via/via-velocity.h #define AVAIL_TD(p,q)   ((p)->options.numtx-((p)->tx.used[(q)]))
AVAIL_TD           75 drivers/staging/vt6655/device.h #define	AVAIL_TD(p, q)	((p)->opts.tx_descs[(q)] - ((p)->iTDUsed[(q)]))