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qeth.rb
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qeth.rb
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# Copyright (c) [2019] SUSE LLC
#
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, contact SUSE LLC.
#
# To contact SUSE LLC about this file by physical or electronic mail, you may
# find current contact information at www.suse.com.
require "y2network/s390_device_activator"
module Y2Network
module S390DeviceActivators
# This class is responsible of activating OSA-Express (QDIO) and
# HiperSockets group devices (qeth driver).
class Qeth < S390DeviceActivator
def_delegators :@builder,
:read_channel, :read_channel=,
:write_channel, :write_channel=,
:data_channel, :data_channel=,
:layer2, :port_number, :ipa_takeover,
:hwinfo, :attributes
def device_id
return if read_channel.to_s.empty?
[read_channel, write_channel, data_channel].join(":")
end
# Return a list of extra attributes to be set when activating the device
#
# @see [S390DeviceActivator#configure_attributes]
def configure_attributes
extra_attributes = []
extra_attributes.concat(attributes.split(" ")) if attributes
extra_attributes << ipa_takeover_attribute unless ipa_takeover.nil?
extra_attributes << layer2_attribute unless layer2.nil?
extra_attributes << port_attribute
end
# Modifies the read, write and data channel from the the device id
def propose_channels
id = device_id_from(hwinfo.busid)
return unless id
self.read_channel, self.write_channel, self.data_channel = id.split(":")
end
def propose!
propose_channels unless device_id
end
private
# Convenience method to obtain the layer2 attribute for the configuration
# command
#
# @return [String]
def layer2_attribute
"layer2=#{layer2 ? 1 : 0}"
end
# Convenience method to obtain the port number attribute for the
# configuration command
#
# @return [String]
def port_attribute
"portno=#{port_number}"
end
# Convenience method to obtain the port number attribute for the
# configuration command
#
# @return [String]
def ipa_takeover_attribute
"ipa_takeover/enable=#{ipa_takeover ? 1 : 0}"
end
end
end
end