SFP_DEV_DOWN
sfp->sm_dev_state = SFP_DEV_DOWN;
case SFP_DEV_DOWN:
sfp->sm_dev_state = SFP_DEV_DOWN;
if (sfp->sm_dev_state < SFP_DEV_DOWN &&
if (sfp->sm_dev_state < SFP_DEV_DOWN)
[SFP_DEV_DOWN] = "down",