kernel/linux.git/drivers/net/usb/cdc_ether.c, branch v5.10.78

r8152: Add Lenovo Powered USB-C Travel Hub

2021-01-19T17:27:22+00:00

commit cb82a54904a99df9e8f9e9d282046055dae5a730 upstream. This USB-C Hub (17ef:721e) based on the Realtek RTL8153B chip used to use the cdc_ether driver. However, using this driver, with the system suspended the device constantly sends pause-frames as soon as the receive buffer fills up. This causes issues with other devices, where some Ethernet switches stop forwarding packets altogether. Using the Realtek driver (r8152) fixes this issue. Pause frames are no longer sent while the host system is suspended. Signed-off-by: Leon Schuermann Tested-by: Leon Schuermann Link: https://lore.kernel.org/r/20210111190312.12589-2-leon@is.currently.online Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

net: cdc_ether: export usbnet_cdc_update_filter

2020-07-17T19:42:47+00:00

This makes the function available to other drivers, like cdc_ncm. Signed-off-by: Miguel Rodríguez Pérez Acked-by: Oliver Neukum Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller

net: cdc_ether: use dev->intf to get interface information

2020-07-17T19:42:47+00:00

usbnet_cdc_update_filter was getting the interface number from the usb_interface struct in cdc_state->control. However, cdc_ncm does not initialize that structure in its bind function, but uses cdc_ncm_ctx instead. Getting intf directly from struct usbnet solves the problem. Signed-off-by: Miguel Rodríguez Pérez Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller

r8152: support additional Microsoft Surface Ethernet Adapter variant

2020-05-19T19:45:09+00:00

Device id 0927 is the RTL8153B-based component of the 'Surface USB-C to Ethernet and USB Adapter' and may be used as a component of other devices in future. Tested and working with the r8152 driver. Update the cdc_ether blacklist due to the RTL8153 'network jam on suspend' issue which this device will cause (personally confirmed). Signed-off-by: Marc Payne Signed-off-by: David S. Miller

r8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2

2019-11-06T02:30:30+00:00

ThinkPad Thunderbolt 3 Dock Gen 2 is another docking station that uses RTL8153 based USB ethernet. The device supports macpassthru, but it failed to pass the test of -AD, -BND and -BD. Simply bypass these tests since the device supports this feature just fine. Also the ACPI objects have some differences between Dell's and Lenovo's, so make those ACPI infos no longer hardcoded. BugLink: https://bugs.launchpad.net/bugs/1827961 Signed-off-by: Kai-Heng Feng Acked-by: Hayes Wang Signed-off-by: David S. Miller

r8152: add device id for Lenovo ThinkPad USB-C Dock Gen 2

2019-10-21T19:06:41+00:00

This device is sold as 'ThinkPad USB-C Dock Gen 2 (40AS)'. Chipset is RTL8153 and works with r8152. Without this, the generic cdc_ether grabs the device, and the device jam connected networks up when the machine suspends. Signed-off-by: Kazutoshi Noguchi Signed-off-by: David S. Miller

cdc_ether: fix rndis support for Mediatek based smartphones

2019-09-13T20:08:13+00:00

A Mediatek based smartphone owner reports problems with USB tethering in Linux. The verbose USB listing shows a rndis_host interface pair (e0/01/03 + 10/00/00), but the driver fails to bind with [ 355.960428] usb 1-4: bad CDC descriptors The problem is a failsafe test intended to filter out ACM serial functions using the same 02/02/ff class/subclass/protocol as RNDIS. The serial functions are recognized by their non-zero bmCapabilities. No RNDIS function with non-zero bmCapabilities were known at the time this failsafe was added. But it turns out that some Wireless class RNDIS functions are using the bmCapabilities field. These functions are uniquely identified as RNDIS by their class/subclass/protocol, so the failing test can safely be disabled. The same applies to the two types of Misc class RNDIS functions. Applying the failsafe to Communication class functions only retains the original functionality, and fixes the problem for the Mediatek based smartphone. Tow examples of CDC functional descriptors with non-zero bmCapabilities from Wireless class RNDIS functions are: 0e8d:000a Mediatek Crosscall Spider X5 3G Phone CDC Header: bcdCDC 1.10 CDC ACM: bmCapabilities 0x0f connection notifications sends break line coding and serial state get/set/clear comm features CDC Union: bMasterInterface 0 bSlaveInterface 1 CDC Call Management: bmCapabilities 0x03 call management use DataInterface bDataInterface 1 and 19d2:1023 ZTE K4201-z CDC Header: bcdCDC 1.10 CDC ACM: bmCapabilities 0x02 line coding and serial state CDC Call Management: bmCapabilities 0x03 call management use DataInterface bDataInterface 1 CDC Union: bMasterInterface 0 bSlaveInterface 1 The Mediatek example is believed to apply to most smartphones with Mediatek firmware. The ZTE example is most likely also part of a larger family of devices/firmwares. Suggested-by: Lars Melin Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21T09:28:45+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version 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 see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version 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 [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman

net: usb: aqc111: Extend HWID table by QNAP device

2019-03-26T18:19:42+00:00

New device of QNAP based on aqc111u Add this ID to blacklist of cdc_ether driver as well Signed-off-by: Dmitry Bezrukov Signed-off-by: David S. Miller

net: usb: aqc111: Extend HWID table by TRENDnet device

2019-01-16T21:32:42+00:00

New device of TRENDnet based on aqc111u Add this ID to blacklist of cdc_ether driver as well Signed-off-by: Dmitry Bezrukov Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller