€•B/      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ(/translations/zh_CN/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ(/translations/zh_TW/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ(/translations/it_IT/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ(/translations/ja_JP/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ(/translations/ko_KR/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ(/translations/sp_SP/networking/x25-iface”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh£sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1h¡hhhžhhŸŒB/var/lib/git/docbuild/linux/Documentation/networking/x25-iface.rst”h KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒX.25 Device Driver Interface”h]”hŒX.25 Device Driver Interface”…””}”(hh»hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hh¶hžhhŸh³h KubhŒ	paragraph”“”)”}”(hŒVersion 1.1”h]”hŒVersion 1.1”…””}”(hhËhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhŒblock_quote”“”)”}”(hŒJonathan Naylor 26.12.96
”h]”hÊ)”}”(hŒJonathan Naylor 26.12.96”h]”hŒJonathan Naylor 26.12.96”…””}”(hhßhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h KhhÛubah}”(h]”h ]”h"]”h$]”h&]”uh1hÙhŸh³h Khh¶hžhubhÊ)”}”(hŒËThis is a description of the messages to be passed between the X.25 Packet
Layer and the X.25 device driver. They are designed to allow for the easy
setting of the LAPB mode from within the Packet Layer.”h]”hŒËThis is a description of the messages to be passed between the X.25 Packet
Layer and the X.25 device driver. They are designed to allow for the easy
setting of the LAPB mode from within the Packet Layer.”…””}”(hhóhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K
hh¶hžhubhÊ)”}”(hXl  The X.25 device driver will be coded normally as per the Linux device driver
standards. Most X.25 device drivers will be moderately similar to the
already existing Ethernet device drivers. However unlike those drivers, the
X.25 device driver has a state associated with it, and this information
needs to be passed to and from the Packet Layer for proper operation.”h]”hXl  The X.25 device driver will be coded normally as per the Linux device driver
standards. Most X.25 device drivers will be moderately similar to the
already existing Ethernet device drivers. However unlike those drivers, the
X.25 device driver has a state associated with it, and this information
needs to be passed to and from the Packet Layer for proper operation.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhÊ)”}”(hŒÎAll messages are held in sk_buff's just like real data to be transmitted
over the LAPB link. The first byte of the skbuff indicates the meaning of
the rest of the skbuff, if any more information does exist.”h]”hŒÐAll messages are held in sk_buffâ€™s just like real data to be transmitted
over the LAPB link. The first byte of the skbuff indicates the meaning of
the rest of the skbuff, if any more information does exist.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhµ)”}”(hhh]”(hº)”}”(hŒPacket Layer to Device Driver”h]”hŒPacket Layer to Device Driver”…””}”(hj   hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj  hžhhŸh³h KubhÊ)”}”(hŒ"First Byte = 0x00 (X25_IFACE_DATA)”h]”hŒ"First Byte = 0x00 (X25_IFACE_DATA)”…””}”(hj.  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khj  hžhubhÊ)”}”(hŒ¡This indicates that the rest of the skbuff contains data to be transmitted
over the LAPB link. The LAPB link should already exist before any data is
passed down.”h]”hŒ¡This indicates that the rest of the skbuff contains data to be transmitted
over the LAPB link. The LAPB link should already exist before any data is
passed down.”…””}”(hj<  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khj  hžhubhÊ)”}”(hŒ%First Byte = 0x01 (X25_IFACE_CONNECT)”h]”hŒ%First Byte = 0x01 (X25_IFACE_CONNECT)”…””}”(hjJ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K"hj  hžhubhÊ)”}”(hŒ‰Establish the LAPB link. If the link is already established then the connect
confirmation message should be returned as soon as possible.”h]”hŒ‰Establish the LAPB link. If the link is already established then the connect
confirmation message should be returned as soon as possible.”…””}”(hjX  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K$hj  hžhubhÊ)”}”(hŒ(First Byte = 0x02 (X25_IFACE_DISCONNECT)”h]”hŒ(First Byte = 0x02 (X25_IFACE_DISCONNECT)”…””}”(hjf  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K'hj  hžhubhÊ)”}”(hŒ‡Terminate the LAPB link. If it is already disconnected then the disconnect
confirmation message should be returned as soon as possible.”h]”hŒ‡Terminate the LAPB link. If it is already disconnected then the disconnect
confirmation message should be returned as soon as possible.”…””}”(hjt  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K)hj  hžhubhÊ)”}”(hŒ$First Byte = 0x03 (X25_IFACE_PARAMS)”h]”hŒ$First Byte = 0x03 (X25_IFACE_PARAMS)”…””}”(hj‚  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K,hj  hžhubhÊ)”}”(hŒLAPB parameters. To be defined.”h]”hŒLAPB parameters. To be defined.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K.hj  hžhubeh}”(h]”Œpacket-layer-to-device-driver”ah ]”h"]”Œpacket layer to device driver”ah$]”h&]”uh1h´hh¶hžhhŸh³h Kubhµ)”}”(hhh]”(hº)”}”(hŒDevice Driver to Packet Layer”h]”hŒDevice Driver to Packet Layer”…””}”(hj©  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj¦  hžhhŸh³h K2ubhÊ)”}”(hŒ"First Byte = 0x00 (X25_IFACE_DATA)”h]”hŒ"First Byte = 0x00 (X25_IFACE_DATA)”…””}”(hj·  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K4hj¦  hžhubhÊ)”}”(hŒcThis indicates that the rest of the skbuff contains data that has been
received over the LAPB link.”h]”hŒcThis indicates that the rest of the skbuff contains data that has been
received over the LAPB link.”…””}”(hjÅ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K6hj¦  hžhubhÊ)”}”(hŒ%First Byte = 0x01 (X25_IFACE_CONNECT)”h]”hŒ%First Byte = 0x01 (X25_IFACE_CONNECT)”…””}”(hjÓ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K9hj¦  hžhubhÊ)”}”(hŒ|LAPB link has been established. The same message is used for both a LAPB
link connect_confirmation and a connect_indication.”h]”hŒ|LAPB link has been established. The same message is used for both a LAPB
link connect_confirmation and a connect_indication.”…””}”(hjá  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K;hj¦  hžhubhÊ)”}”(hŒ(First Byte = 0x02 (X25_IFACE_DISCONNECT)”h]”hŒ(First Byte = 0x02 (X25_IFACE_DISCONNECT)”…””}”(hjï  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K>hj¦  hžhubhÊ)”}”(hŒ‚LAPB link has been terminated. This same message is used for both a LAPB
link disconnect_confirmation and a disconnect_indication.”h]”hŒ‚LAPB link has been terminated. This same message is used for both a LAPB
link disconnect_confirmation and a disconnect_indication.”…””}”(hjý  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h K@hj¦  hžhubhÊ)”}”(hŒ$First Byte = 0x03 (X25_IFACE_PARAMS)”h]”hŒ$First Byte = 0x03 (X25_IFACE_PARAMS)”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h KChj¦  hžhubhÊ)”}”(hŒLAPB parameters. To be defined.”h]”hŒLAPB parameters. To be defined.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h KEhj¦  hžhubeh}”(h]”Œdevice-driver-to-packet-layer”ah ]”h"]”Œdevice driver to packet layer”ah$]”h&]”uh1h´hh¶hžhhŸh³h K2ubhµ)”}”(hhh]”(hº)”}”(hŒ"Requirements for the device driver”h]”hŒ"Requirements for the device driver”…””}”(hj2  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj/  hžhhŸh³h KIubhÊ)”}”(hŒjPackets should not be reordered or dropped when delivering between the
Packet Layer and the device driver.”h]”hŒjPackets should not be reordered or dropped when delivering between the
Packet Layer and the device driver.”…””}”(hj@  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h KKhj/  hžhubhÊ)”}”(hX  To avoid packets from being reordered or dropped when delivering from
the device driver to the Packet Layer, the device driver should not
call "netif_rx" to deliver the received packets. Instead, it should
call "netif_receive_skb_core" from softirq context to deliver them.”h]”hX  To avoid packets from being reordered or dropped when delivering from
the device driver to the Packet Layer, the device driver should not
call â€œnetif_rxâ€ to deliver the received packets. Instead, it should
call â€œnetif_receive_skb_coreâ€ from softirq context to deliver them.”…””}”(hjN  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h KNhj/  hžhubeh}”(h]”Œ"requirements-for-the-device-driver”ah ]”h"]”Œ"requirements for the device driver”ah$]”h&]”uh1h´hh¶hžhhŸh³h KIubeh}”(h]”Œx-25-device-driver-interface”ah ]”h"]”Œx.25 device driver interface”ah$]”h&]”uh1h´hhhžhhŸh³h Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h³uh1hŒcurrent_source”NŒcurrent_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(h¹NŒ	generator”NŒ	datestamp”NŒsource_link”NŒ
source_url”NŒtoc_backlinks”Œentry”Œfootnote_backlinks”KŒsectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒstrip_classes”NŒreport_level”KŒ
halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ	traceback”ˆŒinput_encoding”Œ	utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”j  Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œlanguage_code”Œen”Œrecord_dependencies”NŒconfig”NŒ	id_prefix”hŒauto_id_prefix”Œid”Œdump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”h³Œ_destination”NŒ_config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒraw_enabled”KŒline_length_limit”M'Œpep_references”NŒpep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒrfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ	tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œsmart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œdocinfo_xform”KŒsectsubtitle_xform”‰Œimage_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(ji  jf  j£  j   j,  j)  ja  j^  uŒ	nametypes”}”(ji  ‰j£  ‰j,  ‰ja  ‰uh}”(jf  h¶j   j  j)  j¦  j^  j/  uŒfootnote_refs”}”Œcitation_refs”}”Œautofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ	footnotes”]”Œ	citations”]”Œautofootnote_start”KŒsymbol_footnote_start”K Œ
id_counter”Œcollections”ŒCounter”“”}”…”R”Œparse_messages”]”Œtransform_messages”]”Œtransformer”NŒinclude_log”]”Œ
decoration”Nhžhub.