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sriov.cpython-38.pyc
U ci�_�5 � @ s� d dl Z d dlZd dlZd dlmZ d dlm mZ d dlm Z d dl Z dd� Z dd� Z dd � Z d d � Zdd d�Zdd� ZdS )� N)� defaultdict)�ConfigurationErrorc C s� ||kr�|j | }|�d�}|r�|�d�}|r@|| kr@|||< q�|�d�}|�d�}|�d�} | D ]R} |rvt�| |�rb|r�t�| |�rb| r�t�| | �s�qb||kr�td| ��| ||< qbn|| kr�|||< |�|d �S )N�matchzset-name�name� macaddress�driverz3matched more than one interface for a PF device: %s)� ethernets�get�utils�is_interface_matching_name� is_interface_matching_macaddress�!is_interface_matching_driver_namer ) � interfaces�config_manager�pf_link�pfsZpf_devZpf_match�set_name�by_nameZby_macZ by_driver� interface� r �'/usr/share/netplan/netplan/cli/sriov.py�_get_target_interface s6 � �� � r c C s� i }|j �� D ]�\}}|s q|dkr&q|�d�}|rPt| |||�} | r||| < q|�d�} | r| |j krt| || |� | |kr�||| d7 < nt�d| � qd||< q|�� D ]8\} } | |kr�|| | kr�td|| | f ��| || < q�dS )z� Go through the list of netplan ethernet devices and identify which are PFs and VFs, matching the former with actual networking interfaces. Count how many VFs each PF will need. �rendererzvirtual-function-count�link� z9could not match physical interface for the defined PF: %sNz;more VFs allocated than the explicit size declared: %s > %s)r �itemsr r �logging�warningr ) r r � vf_counts�vfsr Zexplicit_countsZethernet�settingsZ explicit_num�pfr �countr r r �get_vf_count_and_functionsE s4 �r# c C s� |dkrt d| |f ��tj�d| d�}tj�|d�}tj�|d�}z(t|��}t|�� �� �}W 5 Q R X W nT tk r� } zt d| t |�f ��W 5 d}~X Y n t k r� t d | ��Y nX ||kr�t d | ||f ��z(t|d ��}|� t |�� W 5 Q R X W n� tk �r� } z�d }|j d k�r�t�d| � zHt|d ��}|� d� W 5 Q R X t|d ��}|� t |�� W 5 Q R X W n( tk �r� } z| }W 5 d} ~ X Y nX d}|�r�t d|| t |�f ��W 5 d}~X Y nX d S )zB Allocate the required number of VFs for the selected PF. � zDcannot allocate more VFs for PF %s than the SR-IOV maximum: %s > 256�/sys/class/net�deviceZ sriov_numvfsZsriov_totalvfsz(failed parsing sriov_totalvfs for %s: %sNz#invalid sriov_totalvfs value for %szKcannot allocate more VFs for PF %s than supported: %s > %s (sriov_totalvfs)�wT� zLdevice or resource busy while setting sriov_numvfs for %s, trying workaround�0Fz,failed setting sriov_numvfs to %s for %s: %s)r �os�path�join�open�int�read�strip�IOError� RuntimeError�str� ValueError�write�errnor r ) r! �vf_count�devdirZ numvfs_pathZ totalvfs_path�fZvf_max�eZbailZe_innerr r r �set_numvfs_for_pfv sH � $ � (r; c C s� t j�d| d�}zhtt j�|d���}|�� �� dd� }W 5 Q R X tt j�|d���}|�� �� dd� }W 5 Q R X W n6 tk r� } ztd| t|�f ��W 5 d}~X Y nX d�||g�}d}||kr�dS ) z� Perform any hardware-specific quirks for the given SR-IOV device to make sure all the VF-count changes are applied. r% r& Zvendor� Nz2could not determine vendor and device ID of %s: %s�:r ) r* r+ r, r- r/ r0 r1 r2 r3 )r! r8 r9 Z device_idZ vendor_idr: Z combined_idZ quirk_devicesr r r � perform_hardware_specific_quirks� s "& r> �/c C s� d}t j�|d|d�}t j�t �|��}t j�|d| d�}t �|�D ]D} d| krDt j�|| �} t j�t �| ��} | |krD| dd� } q�qD|s�td||f ��z.tjddd d | d |d t |�g tj tj d � W n" tj k r� td| ��Y nX dS )z@ Apply the hardware VLAN filtering for the selected VF. Nz sys/class/netr& Zvirtfn� zAcould not determine the VF index for %s while configuring vlan %s�ipr �set�dev�vf�vlan)�stdout�stderrzJfailed setting SR-IOV VLAN filter for vlan %s (ip link set command failed)) r* r+ r, �basename�readlink�listdirr2 � subprocess� check_callr3 �DEVNULL�CalledProcessError) r! rD Z vlan_name�vlan_id�prefixZvf_indexZ vf_devdirZ vf_dev_idZ pf_devdirr9 Zdev_pathZdev_idr r r �apply_vlan_filter_for_vf� s> � �� �rQ c C s� | � � t�� }tt�}i }i }t|| |||� g }|r`|�� D ] \}}t||�sTq@|�|� q@|r~|D ] }t |� qht�� }|D ]z}| j � |�} | � d�} | r�| � d�} |D ]:} | r�t � | | �s�q�||kr�|| r�td| ��| ||< q�q�||kr�|||< q�t� } | j�� D ]�\}} | � d�dk�r| � d�}| � d�}|�sLtd| ��|� |�}|�srt�d ||f � �q| j � |�� d�}|� |�}|| k�r�td |||f ��t||||� | �|� �qd S ) z Go through all interfaces, identify which ones are SR-IOV VFs, create them and perform all other necessary setup. r r z3matched more than one interface for a VF device: %sr Zsriovr �idz)no id property defined for SR-IOV vlan %szKSR-IOV vlan defined for %s but link %s is either not a VF or has no matcheszJinterface %s for netplan device %s (%s) already has an SR-IOV vlan definedN)�parse� netifacesr r r. r# r r; �appendr> r r r r r rB �vlansr r rQ �add)r r r r r Zvf_count_changedr! r7 rD r r r r Zfiltered_vlans_setrE r rO Zvf_parent_entryr r r �apply_sriov_config� st � � � �rX )r? )r r* rK � collectionsr �netplan.cli.utils�clir �netplan.configmanagerr rT r r# r; r> rQ rX r r r r �<module> s '1/ '