€•¶,      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)”…””}”(hhŒparent”hubaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ$/translations/zh_CN/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”(hhhh2ubah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ$/translations/zh_TW/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”(hhhhFubah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ$/translations/it_IT/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”(hhhhZubah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ$/translations/ja_JP/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”(hhhhnubah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ$/translations/ko_KR/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”(hhhh‚ubah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ$/translations/sp_SP/watchdog/mlx-wdt”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒMellanox watchdog drivers”h]”hŒMellanox watchdog drivers”…””}”(hhªhh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒ>/var/lib/git/docbuild/linux/Documentation/watchdog/mlx-wdt.rst”h Kubh¢)”}”(hhh]”(h§)”}”(hŒfor x86 based system switches”h]”hŒfor x86 based system switches”…””}”(hh¼hhºhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh·hžhhŸh¶h KubhŒ	paragraph”“”)”}”(hŒhThis driver provides watchdog functionality for various Mellanox
Ethernet and Infiniband switch systems.”h]”hŒhThis driver provides watchdog functionality for various Mellanox
Ethernet and Infiniband switch systems.”…””}”(hhÌhhÊhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhÉ)”}”(hŒGMellanox watchdog device is implemented in a programmable logic device.”h]”hŒGMellanox watchdog device is implemented in a programmable logic device.”…””}”(hhÚhhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhÉ)”}”(hŒ1There are 2 types of HW watchdog implementations.”h]”hŒ1There are 2 types of HW watchdog implementations.”…””}”(hhèhhæhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhŒdefinition_list”“”)”}”(hhh]”(hŒdefinition_list_item”“”)”}”(hŒÇType 1:
Actual HW timeout can be defined as a power of 2 msec.
e.g. timeout 20 sec will be rounded up to 32768 msec.
The maximum timeout period is 32 sec (32768 msec.),
Get time-left isn't supported
”h]”(hŒterm”“”)”}”(hŒType 1:”h]”hŒType 1:”…””}”(hj  hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÿhŸh¶h KhhûubhŒ
definition”“”)”}”(hhh]”hÉ)”}”(hŒ¾Actual HW timeout can be defined as a power of 2 msec.
e.g. timeout 20 sec will be rounded up to 32768 msec.
The maximum timeout period is 32 sec (32768 msec.),
Get time-left isn't supported”h]”hŒÀActual HW timeout can be defined as a power of 2 msec.
e.g. timeout 20 sec will be rounded up to 32768 msec.
The maximum timeout period is 32 sec (32768 msec.),
Get time-left isnâ€™t supported”…””}”(hj  hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khj  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j  hhûubeh}”(h]”h ]”h"]”h$]”h&]”uh1hùhŸh¶h Khhöubhú)”}”(hŒ’Type 2:
Actual HW timeout is defined in sec. and it's the same as
a user-defined timeout.
Maximum timeout is 255 sec.
Get time-left is supported.
”h]”(j   )”}”(hŒType 2:”h]”hŒType 2:”…””}”(hj4  hj2  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÿhŸh¶h Khj.  ubj  )”}”(hhh]”hÉ)”}”(hŒ‰Actual HW timeout is defined in sec. and it's the same as
a user-defined timeout.
Maximum timeout is 255 sec.
Get time-left is supported.”h]”hŒ‹Actual HW timeout is defined in sec. and itâ€™s the same as
a user-defined timeout.
Maximum timeout is 255 sec.
Get time-left is supported.”…””}”(hjE  hjC  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khj@  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j  hj.  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1hùhŸh¶h Khhöhžhubhú)”}”(hŒ[Type 3:
Same as Type 2 with extended maximum timeout period.
Maximum timeout is 65535 sec.
”h]”(j   )”}”(hŒType 3:”h]”hŒType 3:”…””}”(hjc  hja  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÿhŸh¶h Khj]  ubj  )”}”(hhh]”hÉ)”}”(hŒRSame as Type 2 with extended maximum timeout period.
Maximum timeout is 65535 sec.”h]”hŒRSame as Type 2 with extended maximum timeout period.
Maximum timeout is 65535 sec.”…””}”(hjt  hjr  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khjo  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j  hj]  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1hùhŸh¶h Khhöhžhubeh}”(h]”h ]”h"]”h$]”h&]”uh1hôhh·hžhhŸh¶h NubhÉ)”}”(hŒ¤Type 1 HW watchdog implementation exist in old systems and
all new systems have type 2 HW watchdog.
Two types of HW implementation have also different register map.”h]”hŒ¤Type 1 HW watchdog implementation exist in old systems and
all new systems have type 2 HW watchdog.
Two types of HW implementation have also different register map.”…””}”(hj”  hj’  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhÉ)”}”(hŒ¾Type 3 HW watchdog implementation can exist on all Mellanox systems
with new programmer logic device.
It's differentiated by WD capability bit.
Old systems still have only one main watchdog.”h]”hŒÀType 3 HW watchdog implementation can exist on all Mellanox systems
with new programmer logic device.
Itâ€™s differentiated by WD capability bit.
Old systems still have only one main watchdog.”…””}”(hj¢  hj   hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K#hh·hžhubhÉ)”}”(hXŠ  Mellanox system can have 2 watchdogs: main and auxiliary.
Main and auxiliary watchdog devices can be enabled together
on the same system.
There are several actions that can be defined in the watchdog:
system reset, start fans on full speed and increase register counter.
The last 2 actions are performed without a system reset.
Actions without reset are provided for auxiliary watchdog device,
which is optional.
Watchdog can be started during a probe, in this case it will be
pinged by watchdog core before watchdog device will be opened by
user space application.
Watchdog can be initialised in nowayout way, i.e. oncse started
it can't be stopped.”h]”hXŒ  Mellanox system can have 2 watchdogs: main and auxiliary.
Main and auxiliary watchdog devices can be enabled together
on the same system.
There are several actions that can be defined in the watchdog:
system reset, start fans on full speed and increase register counter.
The last 2 actions are performed without a system reset.
Actions without reset are provided for auxiliary watchdog device,
which is optional.
Watchdog can be started during a probe, in this case it will be
pinged by watchdog core before watchdog device will be opened by
user space application.
Watchdog can be initialised in nowayout way, i.e. oncse started
it canâ€™t be stopped.”…””}”(hj°  hj®  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K(hh·hžhubhÉ)”}”(hŒ>This mlx-wdt driver supports both HW watchdog implementations.”h]”hŒ>This mlx-wdt driver supports both HW watchdog implementations.”…””}”(hj¾  hj¼  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K6hh·hžhubhÉ)”}”(hX   Watchdog driver is probed from the common mlx_platform driver.
Mlx_platform driver provides an appropriate set of registers for
Mellanox watchdog device, identity name (mlx-wdt-main or mlx-wdt-aux),
initial timeout, performed action in expiration and configuration flags.
watchdog configuration flags: nowayout and start_at_boot, hw watchdog
version - type1 or type2.
The driver checks during initialization if the previous system reset
was done by the watchdog. If yes, it makes a notification about this event.”h]”hX   Watchdog driver is probed from the common mlx_platform driver.
Mlx_platform driver provides an appropriate set of registers for
Mellanox watchdog device, identity name (mlx-wdt-main or mlx-wdt-aux),
initial timeout, performed action in expiration and configuration flags.
watchdog configuration flags: nowayout and start_at_boot, hw watchdog
version - type1 or type2.
The driver checks during initialization if the previous system reset
was done by the watchdog. If yes, it makes a notification about this event.”…””}”(hjÌ  hjÊ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K8hh·hžhubhÉ)”}”(hŒ…Access to HW registers is performed through a generic regmap interface.
Programmable logic device registers have little-endian order.”h]”hŒ…Access to HW registers is performed through a generic regmap interface.
Programmable logic device registers have little-endian order.”…””}”(hjÚ  hjØ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KAhh·hžhubeh}”(h]”Œfor-x86-based-system-switches”ah ]”h"]”Œfor x86 based system switches”ah$]”h&]”uh1h¡hh£hžhhŸh¶h Kubeh}”(h]”Œmellanox-watchdog-drivers”ah ]”h"]”Œmellanox watchdog drivers”ah$]”h&]”uh1h¡hhhžhhŸh¶h Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h¶uh1hŒcurrent_source”NŒcurrent_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(h¦NŒ	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”h¶Œ_destination”NŒ_config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒ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file_insertion_enabled”ˆŒraw_enabled”KŒline_length_limit”M'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”‰Œembed_images”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jó  jð  jë  jè  uŒ	nametypes”}”(jó  Një  Nuh}”(jð  h£jè  h·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.