MLX4_EN_PRIV_FLAGS_PHV
bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;