File: //lib/python3.12/site-packages/tuned/plugins/__pycache__/plugin_scsi_host.cpython-312.pyc
�
�]�i� � � � d dl Z ddlmZ ddl� d dlZd dlmZ d dlm Z d dl
Z
d dl Z ej j � Z G d� dej � Zy)� N� )�hotplug)�*)�commandsc �� � � e Zd ZdZ� fd�Z� fd�Zd� Zed� � Zd� Z d� Z
� fd�Z � fd �Z � fd
�Z
ed � � Zd � Zd
� Zd� Zd� Zd� Z edd�� d� � Z ed� dd�� Z� xZS )�SCSIHostPlugina�
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 four values:
`min_power`, `med_power_with_dipm`, `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=med_power_with_dipm
----
====
c �J �� t t | �
|i |�� t � | _ y �N)�superr �__init__r �_cmd)�self�args�kwargs� __class__s ��C/usr/lib/python3.12/site-packages/tuned/plugins/plugin_scsi_host.pyr zSCSIHostPlugin.__init__ s �� ����&��7��7��j�$�)� c �" �� t t | � � d| _ t � | _ | j j d� D ]9 }| j |� s�| j
j |j � �; t � | _ y )NT�scsi) r r �
_init_devices�_devices_supported�set�
_free_devices�_hardware_inventory� get_devices�_device_is_supported�add�sys_name�_assigned_devices)r �devicer s �r r z SCSIHostPlugin._init_devices% so �� ����+�-� �$���u�$���(�(�4�4�V�<�f�
� � ��'������6�?�?�+� =� �5�$�r c �` � |D �cg c] }| j j d|� �� c}S c c}w �Nr )r �
get_device)r �devices�xs r �_get_device_objectsz"SCSIHostPlugin._get_device_objects/ s- � �BI� J�'�Q�$�
"�
"�
-�
-�f�a�
8�'� J�J�� Js �#+c � � |j dk( S )N� scsi_host)� device_type)�clsr s r r z#SCSIHostPlugin._device_is_supported2 s � �
�
�
� �
+�+r c �R � | j j | d| j � y r" )r � subscribe�_hardware_events_callback�r s r �_hardware_events_initz$SCSIHostPlugin._hardware_events_init6 s � ����$�$�T�6�4�3Q�3Q�Rr c �: � | j j | � y r
)r � unsubscriber. s r �_hardware_events_cleanupz'SCSIHostPlugin._hardware_events_cleanup9 s � ����&�&�t�,r c �R �� | j |� rt t | � ||� y y r
)r r r r- )r �eventr r s �r r- z(SCSIHostPlugin._hardware_events_callback< s' �� � � � �v�&�� ��8���G� 'r c �. �� t t | � ||� y r
)r r �_added_device_apply_tuning�r �instance� device_namer s �r r6 z)SCSIHostPlugin._added_device_apply_tuning@ s �� ����8��;�Or c �. �� t t | � ||� y r
)r r � _removed_device_unapply_tuningr7 s �r r; z-SCSIHostPlugin._removed_device_unapply_tuningC s �� ����<�X�{�Sr c �
� dd iS )N�alpm� )r* s r �_get_config_optionsz"SCSIHostPlugin._get_config_optionsF s � �
�$�
� r c � � d|_ d|_ y )NTF)�_has_static_tuning�_has_dynamic_tuning�r r8 s r �_instance_initz SCSIHostPlugin._instance_initL s � � $�(� �!&�(� r c � � y r
r> rC s r �_instance_cleanupz SCSIHostPlugin._instance_cleanupP s � �r c �V � t j j dt |� d� S )N�/sys/class/scsi_host/� link_power_management_policy��os�path�join�str�r r s r �_get_alpm_policy_filez$SCSIHostPlugin._get_alpm_policy_fileS s � � ��� � �-�s�6�{�<Z� [�[r c �V � t j j dt |� d� S )NrH �
ahci_port_cmdrJ rO s r �_get_ahci_port_cmd_filez&SCSIHostPlugin._get_ahci_port_cmd_fileV s � � ��� � �-�s�6�{�O� L�Lr c � � | j |� }t j j |� syt | j
j
|� d� }|dz dk7 S )NF� i $ r )rS rK rL �isfile�intr
� read_file)r r �
port_cmd_file�port_cmds r �_is_external_sata_portz%SCSIHostPlugin._is_external_sata_portY sS � ��.�.�v�6�-� ��� � �
� &�
�
����$�$�]�3�R�
8�(�
�&� '�1� ,�,r r= T)�
per_devicec � � |�y | j |� r"t j dt |� z � y | j |� }|sxt
j j |� r3| j j |||rt j gnd�� |S t j d|�dt |� �d�� y |S )NzUDevice '%s' is an external SATA controller, skipping ALPM setting to support hot plugF��no_errorzALPM control file ('z)') not found, skipping ALPM setting for '�') r[ �log�inforN rP rK rL �existsr
�
write_to_file�errno�ENOENT)r �policyr r8 �sim�remove� policy_files r � _set_alpmzSCSIHostPlugin._set_alpmb s� � � �^�
� � � ��(� �8�8� c�fi�jp�fq� q�r�
��*�*�6�2�+� ��g�g�n�n�[�!��I�I���K��"(�� � ��e� � 5�
�-� �H�H�U`�be�fl�bm�
n�o� � �-r c � � | j |� }| j j |d�� j � }|dk7 r|S d S )NTr^ � )rP r
rX �strip)r r r8 �ignore_missingrj rg s r � _get_alpmzSCSIHostPlugin._get_alpmu sE � ��*�*�6�2�+� �9�9� � �{�t� � <� B� B� D�&��R�<��)�T�)r )F)�__name__�
__module__� __qualname__�__doc__r r r& � classmethodr r/ r2 r- r6 r; r? rD rF rP rS r[ � command_setrk � command_getrp �
__classcell__)r s @r r r s� �� ��&�
!�K� �,� �,�S�-�H�P�T� �� ��
'��\�M�-� �f�4�(�� )��$ �f��*� �*r r )re rm r �
decorators�
tuned.logs�tuned� tuned.consts�consts�tuned.utils.commandsr rK �re�logs�getra �Pluginr r> r r �<module>r� s? �� � � � � � )� � � �j�j�n�n���m*�W�^�^� m*r