Edit File: plugin_scsi_host.cpython-36.pyc
3 �<�eQ � @ sj d dl Z ddlmZ ddlT d dlZd dljZd dlm Z d dl Z d dl Z ej j � ZG dd� dej�ZdS )� N� )�hotplug)�*)�commandsc s� e Zd ZdZ� fdd�Z� fdd�Zdd� Zedd � �Zd d � Z d d � Z � fdd�Z � fdd�Z � fdd�Z edd� �Zdd� Zdd� Zdd� Zed d d �d d � �Zed �d$d"d#��Z� ZS )%�SCSIHostPlugina� `scsi_host`:: Tunes options for SCSI hosts. + The plug-in sets Aggressive Link Power Management (ALPM) to the value specified by the [option]`alpm` option. The option takes one of three values: `min_power`, `medium_power` and `max_performance`. + NOTE: ALPM is only available on SATA controllers that use the Advanced Host Controller Interface (AHCI). + .ALPM setting when extended periods of idle time are expected ==== ---- [scsi_host] alpm=min_power ---- ==== c s t t| �j||� t� | _d S )N)�superr �__init__r �_cmd)�self�args�kwargs)� __class__� �&/usr/lib/python3.6/plugin_scsi_host.pyr " s zSCSIHostPlugin.__init__c sV t t| �j� d| _t� | _x,| jjd�D ] }| j|�r*| jj |j � q*W t� | _ d S )NT�scsi) r r � _init_devicesZ_devices_supported�setZ _free_devices�_hardware_inventoryZ get_devices�_device_is_supported�addZsys_nameZ_assigned_devices)r �device)r r r r ' s z SCSIHostPlugin._init_devicesc s � fdd�|D �S )Nc s g | ]}� j jd |��qS )r )r Z get_device)�.0�x)r r r � <listcomp>2 s z6SCSIHostPlugin._get_device_objects.<locals>.<listcomp>r )r Zdevicesr )r r �_get_device_objects1 s z"SCSIHostPlugin._get_device_objectsc C s |j dkS )NZ scsi_host)Z device_type)�clsr r r r r 4 s z#SCSIHostPlugin._device_is_supportedc C s | j j| d| j� d S )Nr )r Z subscribe�_hardware_events_callback)r r r r �_hardware_events_init8 s z$SCSIHostPlugin._hardware_events_initc C s | j j| � d S )N)r Z unsubscribe)r r r r �_hardware_events_cleanup; s z'SCSIHostPlugin._hardware_events_cleanupc s | j |�r tt| �j||� d S )N)r r r r )r Zeventr )r r r r > s z(SCSIHostPlugin._hardware_events_callbackc s t t| �j||� d S )N)r r �_added_device_apply_tuning)r �instance� device_name)r r r r B s z)SCSIHostPlugin._added_device_apply_tuningc s t t| �j||� d S )N)r r � _removed_device_unapply_tuning)r r r! )r r r r" E s z-SCSIHostPlugin._removed_device_unapply_tuningc C s dd iS )N�alpmr )r r r r �_get_config_optionsH s z"SCSIHostPlugin._get_config_optionsc C s d|_ d|_d S )NTF)Z_has_static_tuningZ_has_dynamic_tuning)r r r r r �_instance_initN s z SCSIHostPlugin._instance_initc C s d S )Nr )r r r r r �_instance_cleanupR s z SCSIHostPlugin._instance_cleanupc C s t jjdt|�d�S )Nz/sys/class/scsi_host/Z link_power_management_policy)�os�path�join�str)r r r r r �_get_alpm_policy_fileU s z$SCSIHostPlugin._get_alpm_policy_filer# T)Z per_devicec C sd |d kr d S | j |�}|s`tjj|�rF| jj|||r<tjgndd� ntj d|t |�f � d S |S )NF)�no_errorzBALPM control file ('%s') not found, skipping ALPM setting for '%s') r+ r' r( �existsr Z write_to_file�errno�ENOENT�log�infor* )r �policyr Zsim�remove� policy_filer r r � _set_alpmX s zSCSIHostPlugin._set_alpmFc C s. | j |�}| jj|dd�j� }|dkr*|S d S )NT)r, � )r+ r Z read_file�strip)r r Zignore_missingr4 r2 r r r � _get_alpmf s zSCSIHostPlugin._get_alpm)F)�__name__� __module__� __qualname__�__doc__r r r � classmethodr r r r r r" r$ r% r& r+ Z command_setr5 Z command_getr8 � __classcell__r r )r r r s" r )r. r6 r Z decoratorsZ tuned.logsZtunedZ tuned.constsZconstsZtuned.utils.commandsr r' �reZlogs�getr0 ZPluginr r r r r �<module> s
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