phy_start
ph->phy_start = phy_start;
if (ph->phy_start(ph) != DDI_SUCCESS) {
ph->phy_start = i82555_start;
if ((rv = phy_start(ph)) != DDI_SUCCESS) {
rv = phy_start(ph);
ph->phy_start = mvphy_start;
int phy_start(phy_handle_t *);
int (*phy_start)(phy_handle_t *);