Changes in sysfs-bus-thunderbolt

a3f64458 - Documentation/ABI: thunderbolt: Replace 01.org in contact

Thu, 03 Aug 2023 09:36:09 +0000

Documentation/ABI: thunderbolt: Replace 01.org in contactThe mailing list on 01.org does not work anymore and the whole siteredirects to intel.com Open Source page so replace the 01.org addresswith my email address.Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

387a42cf - thunderbolt: Fix spelling mistake "simultaneusly" -> "simultaneously"

Tue, 06 Sep 2022 14:05:52 +0000

thunderbolt: Fix spelling mistake "simultaneusly" -> "simultaneously"There are spelling mistakes in the thunderbolt sysfs documentation.Fix them.Signed-off-by: Colin Ian King Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

5dddb416 - thunderbolt: Link USB4 ports to their USB Type-C connectors

Mon, 18 Apr 2022 17:59:32 +0000

thunderbolt: Link USB4 ports to their USB Type-C connectorsCreating a symlink pointing to the correct USB Type-Cconnector for the on-board USB4 ports when they are created.The link will be created only if the firmware is able todescribe the connection between the port and its connector.Signed-off-by: Heikki Krogerus Signed-off-by: Won Chung Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

8599a12b - platform/x86: Update Mario Limonciello's email address in the docs

Tue, 10 Aug 2021 16:09:00 +0000

platform/x86: Update Mario Limonciello's email address in the docsVarious pdx86 docs under Documentation/ABI/testing still use Mario'sold, now defunct, address.Update the docs to point to either the new Dell.Client.Kernel@dell.comemail alias for Dell specific drivers, or to Mario's new @outlook.comaddress for other drivers.Cc: Dell.Client.Kernel@dell.comCc: Mario Limonciello Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20210810160900.106512-1-hdegoede@redhat.com List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

faa1c615 - thunderbolt: Add WRITE_ONLY and AUTHENTICATE_ONLY NVM operations for retimers

Mon, 12 Apr 2021 12:29:16 +0000

thunderbolt: Add WRITE_ONLY and AUTHENTICATE_ONLY NVM operations for retimersThe same way we support these two operations for USB4 routers we canextend the retimer NVM operations to support retimers also.Signed-off-by: Rajmohan Mani Co-developed-by: Mika Westerberg Signed-off-by: Mika Westerberg Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

1cbf680f - thunderbolt: Allow router NVM authenticate separately

Mon, 12 Apr 2021 12:25:08 +0000

thunderbolt: Allow router NVM authenticate separatelyIt may be useful if the actual NVM authentication can be delayed to berun later, for instance when the user logs out. For this reason add anew NVM operation (AUHENTICATE_ONLY) that just triggers the authenticationprocedure over whatever was written to the NVM storage.This is not supported with Thunderbolt 1-3 devices, though.Signed-off-by: Mika Westerberg Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

3fb10ea4 - thunderbolt: Add support for retimer NVM upgrade when there is no link

Thu, 01 Apr 2021 15:42:38 +0000

thunderbolt: Add support for retimer NVM upgrade when there is no linkWith help from platform firmware (ACPI) it is possible to power onretimers even when there is no USB4 link (e.g nothing is connected tothe USB4 ports). This allows us to bring the USB4 sideband up so that wecan access retimers and upgrade their NVM firmware.If the platform has support for this, we expose two additionalattributes under USB4 ports: offline and rescan. These can be used tobring the port offline, rescan for the retimers and put the port onlineagain. The retimer NVM upgrade itself works the same way than with cableconnected.Signed-off-by: Rajmohan Mani Co-developed-by: Mika Westerberg Signed-off-by: Mika Westerberg Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

cae5f515 - thunderbolt: Add USB4 port devices

Thu, 01 Apr 2021 14:34:20 +0000

thunderbolt: Add USB4 port devicesCreate devices for each USB4 port. This is needed when we add retimeraccess when there is no device connected but may be useful for otherpurposes too following what USB subsystem does. This exports a singleattribute "link" that shows the type of the USB4 link (or "none" ifthere is no cable connected).Signed-off-by: Mika Westerberg Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

68977e61 - Documentation / thunderbolt: Clean up entries

Mon, 12 Apr 2021 11:12:47 +0000

Documentation / thunderbolt: Clean up entriesAlign the "What" entries along with the rest and movenvm_authenticate_on_disconnect to correct place.Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

46b494f2 - thunderbolt: Add support for maxhopid XDomain property

Fri, 08 Jan 2021 12:57:19 +0000

thunderbolt: Add support for maxhopid XDomain propertyUSB4 inter-domain spec mandates that the compatible hosts expose a newproperty "maxhopid" that tells the connection manager on the other sidewhat is the maximum supported input HopID over the connection. Sincethis is depend on the lane adapter the cable is connected it needs to befilled in dynamically.For this reason we take a copy of the global properties and fill thenfor each XDomain connection upon first connect, and then keep updatingit if the generation changes as services are being added/removed. Wealso take advantage of this copy to fill in the hostname.We also expose this maxhopid as an attribute under each XDomain device.While there drop kernel-doc entry for property_lock which seems to beleft there when the structure was originally introduced.Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

fea62700 - Documentation / thunderbolt: Drop speed/lanes entries for XDomain

Fri, 08 Jan 2021 10:45:05 +0000

Documentation / thunderbolt: Drop speed/lanes entries for XDomainThese are actually not needed as we already have similar entries thatapply to all devices on the Thunderbolt bus.Cc: Isaac Hazan Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

3cd542e6 - thunderbolt: Add support for PCIe tunneling disabled (SL5)

Thu, 03 Sep 2020 10:13:21 +0000

thunderbolt: Add support for PCIe tunneling disabled (SL5)Recent Intel Thunderbolt firmware connection manager has support foranother security level, SL5, that disables PCIe tunneling. This optioncan be turned on from the BIOS.When this is set the driver exposes a new security level "nopcie" to theuserspace and hides the authorized attribute under connected devices.While there we also hide it when "dponly" security level is enabledsince it is not really usable in that case anyway.Signed-off-by: Mika Westerberg Acked-by: Yehezkel Bernat List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

3da88be2 - thunderbolt: Add support for de-authorizing devices

Tue, 10 Nov 2020 08:47:14 +0000

thunderbolt: Add support for de-authorizing devicesIn some cases it is useful to be able de-authorize devices. For exampleif user logs out the userspace can have a policy that disconnects PCIedevices until logged in again. This is only possible for software basedconnection manager as it directly controls the tunnels.For this reason make the authorized attribute accept writing 0 whichmakes the software connection manager to tear down the correspondingPCIe tunnel. Userspace can check if this is supported by reading a newdomain attribute deauthorization, that holds 1 in that case.While there correct tb_domain_approve_switch() kernel-doc anddescription of authorized attribute to mention that it is only aboutPCIe tunnels.Cc: Christian Kellner Signed-off-by: Mika Westerberg Acked-by: Yehezkel Bernat List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

4210d50f - thunderbolt: Add link_speed and link_width to XDomain

Thu, 24 Sep 2020 08:43:58 +0000

thunderbolt: Add link_speed and link_width to XDomainLink speed and link width are needed for checking expected values incase of using a loopback service.Signed-off-by: Isaac Hazan Signed-off-by: Mika Westerberg Acked-by: Yehezkel Bernat Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

54a19b4d - docs: ABI: cleanup several ABI documents

Fri, 30 Oct 2020 07:40:50 +0000

docs: ABI: cleanup several ABI documentsThere are some ABI documents that, while they don't generateany warnings, they have issues when parsed by get_abi.pl scripton its output result.Address them, in order to provide a clean output.Reviewed-by: Tom Rix # for fpga-managerReviewed-By: Kajol Jain # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7Acked-by: Jonathan Cameron #for IIOAcked-by: Oded Gabbay # for HabanalabsAcked-by: Vaibhav Jain # for sysfs-bus-papr-pmemAcked-by: Cezary Rojewski # for catptAcked-by: Suzuki K Poulose Acked-by: Ilya Dryomov # for rbdAcked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

34433332 - docs: ABI: testing: make the files compatible with ReST output

Fri, 30 Oct 2020 07:40:39 +0000

docs: ABI: testing: make the files compatible with ReST outputSome files over there won't parse well by Sphinx.Fix them.Acked-by: Jonathan Cameron # for IIOAcked-by: Fabrice Gasnier Acked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/58cf3c2d611e0197fb215652719ebd82ca2658db.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

1cb36293 - thunderbolt: Add support for authenticate on disconnect

Tue, 23 Jun 2020 16:14:29 +0000

thunderbolt: Add support for authenticate on disconnectSome external devices can support completing thunderbolt authenticationwhen they are unplugged. For this to work though, the link controller mustremain operational.The only device known to support this right now is the Dell WD19TB, so adda quirk for this.Signed-off-by: Mario Limonciello Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

4b794f80 - thunderbolt: Add support for separating the flush to SPI and authenticate

Tue, 23 Jun 2020 16:14:28 +0000

thunderbolt: Add support for separating the flush to SPI and authenticateThis allows userspace to have a shorter period of time that the deviceis unusable and to call it at a more convenient time.For example flushing the image may happen while the user is using themachine and authenticating/rebooting may happen while logging out.Signed-off-by: Mario Limonciello Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

dacb1287 - thunderbolt: Add support for on-board retimers

Thu, 05 Mar 2020 14:39:58 +0000

thunderbolt: Add support for on-board retimersUSB4 spec specifies standard access to retimers (both on-board andcable) through USB4 port sideband access. This makes it possible toupgrade their firmware in the same way than we already do with therouters.This enumerates on-board retimers under each USB4 port when the linkcomes up and adds them to the bus under the router the retimer belongsto. Retimers are exposed in sysfs with name like :.where device is the router the retimer belongs to, port is the USB4 portthe retimer is connected to and index is the retimer index under thatport (starting from 1). This applies to the upstream USB4 port as wellso if there is on-board retimer between the port and the router it isalso added accordingly.At this time we do not add cable retimers but there is no techincalrestriction to do so in the future if needed. It is not clear whether itmakes sense to upgrade their firmwares and at least Thunderbolt 3 cablesit has not been done outside of lab environments.The sysfs interface is made to follow the router NVM upgrade to make iteasy to extend the existing userspace (fwupd) to handle these as well.Signed-off-by: Kranthi Kuntala Co-developed-by: Mika Westerberg Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt

91c0c120 - thunderbolt: Add support for lane bonding

Thu, 21 Mar 2019 17:03:00 +0000

thunderbolt: Add support for lane bondingLane bonding allows aggregating two 10/20 Gb/s (depending on thegeneration) lanes into a single 20/40 Gb/s bonded link. This allowssharing the full bandwidth more efficiently. In order to establish lanebonding we need to check that lane bonding is possible through linkcontroller and that both ends of the link actually supports 2x widths.This also means that all the paths should be established through theprimary port so update tb_path_alloc() to handle this as well.Lane bonding is supported starting from Falcon Ridge (2nd generation)controllers.We also expose the current speed and number of lanes under each deviceexcept the host router following similar attribute naming than USB bus.Expose speed and number of lanes for both directions to allow possibilityof asymmetric link in the future.Signed-off-by: Mika Westerberg List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-thunderbolt