Changes in mei_cl_bus.h

10d43ecb - mei: Remove unused functions

Thu, 30 Jan 2025 01:26:54 +0000

mei: Remove unused functionsThe following functions have been in the mei code fora long time but have never been used.mei_txe_setup_satt2() was added in 2014 bycommit 32e2b59fca2c ("mei: txe: add hw-txe.c")mei_me_cl_rm_by_uuid_id() was added in 2015 bycommit 79563db9ddd3 ("mei: add reference counting for me clients")mei_cldev_uuid() was added in 2015 bycommit baeacd037697 ("mei: bus: export uuid and protocol version to mei_clbus drivers")mei_cldev_recv_nonblock() was added in 2016 bycommit 076802d00615 ("mei: bus: enable non-blocking RX")it is the only user of mei_cldev_recv_nonblock_vtag().Remove them.Signed-off-by: Dr. David Alan Gilbert Acked-by: Arnd Bergmann Reviewed-by: Alexander Usyskin Link: https://lore.kernel.org/r/20250130012654.255119-1-linux@treblig.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

ae4cb6bd - mei: docs: fix spelling errors

Wed, 11 Oct 2023 07:43:01 +0000

mei: docs: fix spelling errorsFix spelling errors in the mei code base.Signed-off-by: Tomas Winkler Reviewed-by: Randy Dunlap Link: https://lore.kernel.org/r/20231011074301.223879-4-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

cf439721 - mei: bus: add send and recv api with timeout

Wed, 11 Oct 2023 11:01:54 +0000

mei: bus: add send and recv api with timeoutAdd variation of the send and recv functions on busthat define timeout.Caller can use such functions in flow that can stuckto bail out and not to put down the whole system.Signed-off-by: Alexander Usyskin Signed-off-by: Alan Previn Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20231011110157.247552-2-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

2266e58a - mei: bus: extend bus API to support command streamer API

Wed, 28 Sep 2022 00:41:34 +0000

mei: bus: extend bus API to support command streamer APIAdd mei bus API for sending gsc commands: mei_cldev_send_gsc_command()The GSC commands are originated in the graphics stackand are in form of SGL DMA buffers.The GSC commands are synchronous, the response is receivedin the same call on the out sg list buffers.The function setups pointers for in and out sg lists in themei sgl extended header and sends it to the firmware.Signed-off-by: Vitaly Lubart Signed-off-by: Tomas Winkler Signed-off-by: Daniele Ceraolo Spurio Cc: Greg Kroah-Hartman Reviewed-by: Greg Kroah-Hartman Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-5-daniele.ceraolospurio@intel.com List of files: /linux-6.15/include/linux/mei_cl_bus.h

2cca3465 - mei: bus: add client dma interface

Fri, 12 Nov 2021 06:28:09 +0000

mei: bus: add client dma interfaceExpose the client dma mapping via mei client bus interface.The client dma has to be mapped before the device is enabled,therefore we need to create device linking already during mappingand we need to unmap after the client is disable hence we need topostpone the unlink and flush till unmapping or whendestroying the device.Signed-off-by: Alexander Usyskin Co-developed-by: Tomas Winkler Signed-off-by: Tomas Winkler Signed-off-by: Emmanuel Grumbach Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20210420172755.12178-1-emmanuel.grumbach@intel.comSigned-off-by: Kalle Valo Link: https://lore.kernel.org/r/20211112062814.7502-1-emmanuel.grumbach@intel.com List of files: /linux-6.15/include/linux/mei_cl_bus.h

0912ef48 - mei: constify passed buffers and structures

Thu, 29 Jul 2021 10:28:03 +0000

mei: constify passed buffers and structuresBuffers and structures passed to MEI bus and client API can be madeconst for safer code and clear indication that it is not modified.Acked-by: Arnd Bergmann Acked-by: Tomas Winkler Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210729102803.46289-1-krzysztof.kozlowski@canonical.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

bf5c9cc8 - mei: bus: change remove callback to return void

Mon, 08 Feb 2021 07:37:05 +0000

mei: bus: change remove callback to return voidThe driver core ignores the return value of mei_cl_device_remove() sopassing an error value doesn't solve any problem. As most mei drivers'remove callbacks return 0 unconditionally and returning a different valuedoesn't have any effect, change this prototype to return void and return 0unconditionally in mei_cl_device_remove(). The only driver that couldreturn an error value is modified to emit an explicit warning in the errorcase.Acked-by: Guenter Roeck Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20210208073705.428185-3-uwe@kleine-koenig.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

85261c1f - mei: bus: add vtag support

Mon, 16 Nov 2020 12:56:11 +0000

mei: bus: add vtag supportAdd API to support vtag in communication on mei bus.Add mei_cldev_send_vtag, mei_cldev_recv_vtag andmei_cldev_recv_nonblock_vtag functions to allow sending a messagewith vtag set and to receive vtag of an incoming message.Cc: Sean Z Huang Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20201116125612.1660971-1-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

1e55b609 - mei: adjust the copyright notice in the files.

Mon, 11 Mar 2019 22:10:44 +0000

mei: adjust the copyright notice in the files.Use unified version of the copyright notice in the filesUpdate copyright years according the year the fileswere touched, except this patch and SPDX conversions.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

32ea33a0 - mei: bus: export to_mei_cl_device for mei client devices drivers

Sat, 09 Feb 2019 16:42:05 +0000

mei: bus: export to_mei_cl_device for mei client devices driversExport to_mei_cl_device macro, as it is needed alsoin the mei client drivers.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'SPDX license identifier. The SPDX identifier is a legally bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines).All documentation files were explicitly excluded.The following heuristics were used to determine which SPDX licenseidentifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time.In total, over 70 hours of logged manual review was done on thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

076802d0 - mei: bus: enable non-blocking RX

Fri, 02 Dec 2016 22:15:25 +0000

mei: bus: enable non-blocking RXEnable non-blocking receive for drivers on mei bus, this allows checkingfor data availability by mei client drivers. This is most effective forfixed address clients, that lacks flow control.This function adds new API function mei_cldev_recv_nonblock(), itretuns -EGAIN if function will block.Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

7c7a6077 - mei: bus: split RX and async notification callbacks

Wed, 16 Nov 2016 20:51:29 +0000

mei: bus: split RX and async notification callbacksSplit callbacks for RX and async notification events on mei bus toeliminate synchronization problems and to open way for RX optimizations.Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

1e4edb3f - mei: bus: remove rx callback context

Wed, 19 Oct 2016 13:33:31 +0000

mei: bus: remove rx callback contextThe callback context is redunant as all the information can beretrived from the device struture of its private data.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

5be149bd - mei: bus: add module_mei_cl_driver helper macro

Wed, 19 Oct 2016 13:33:27 +0000

mei: bus: add module_mei_cl_driver helper macroAdd module_mei_cl_driver helper macro for eliminating the boilerplatecode from mei_cl drivers registration. The macro is intended fordrivers which in their init/exit sections does only register/unregisterof a mei_cl driver.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

d49dc5e7 - mei: bus: use mei_cldev_ prefix for the API functions

Thu, 10 Sep 2015 07:18:05 +0000

mei: bus: use mei_cldev_ prefix for the API functionsUse mei_cldev_ prefix for all mei client bus api functionsin order to resolve prefix conflict with functions that handleclient function and are defined in client.cSigned-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

89391382 - mei: bus: complete variable rename of type struct mei_cl_device

Thu, 10 Sep 2015 07:18:04 +0000

mei: bus: complete variable rename of type struct mei_cl_deviceIn thecommit 5c079ae11921 ("mei: bus: fix drivers and devices names confusion")we set the variables of type struct mei_cl_device to 'cldev'but few places were left out, namely mei_cl_bus.h headerand the mei nfc drivers.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

01a14ede - mei: bus: export mei_cldev_enabled function

Thu, 10 Sep 2015 07:18:03 +0000

mei: bus: export mei_cldev_enabled functionLet me client device driver query of the device is connectedand hence enabled.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

baeacd03 - mei: bus: export uuid and protocol version to mei_cl bus drivers

Thu, 10 Sep 2015 07:18:02 +0000

mei: bus: export uuid and protocol version to mei_cl bus driversExport the uuid and the protocol version of the underlying me clientfor me client bus drivers usage.Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h

bb2ef9c3 - mei: bus: add and call callback on notify event

Sun, 26 Jul 2015 06:54:23 +0000

mei: bus: add and call callback on notify eventEnable drivers on mei client bus to subscribeto asynchronous event notifications.Introduce events_mask to the existing callback infrastructureso it is possible to handle both RX and event notification.Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/include/linux/mei_cl_bus.h