sas_try_ata_reset
if (phy_op == PHY_FUNC_LINK_RESET && sas_try_ata_reset(asd_phy) == 0) {
if (!hard_reset && sas_try_ata_reset(asd_phy) == 0)
int sas_try_ata_reset(struct asd_sas_phy *phy);