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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Leon Schuermann <leon@is.currently.online>,
	Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>,
	linux-usb@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 21/45] r8152: Add Lenovo Powered USB-C Travel Hub
Date: Tue, 19 Jan 2021 20:25:38 -0500	[thread overview]
Message-ID: <20210120012602.769683-21-sashal@kernel.org> (raw)
In-Reply-To: <20210120012602.769683-1-sashal@kernel.org>

From: Leon Schuermann <leon@is.currently.online>

[ Upstream commit cb82a54904a99df9e8f9e9d282046055dae5a730 ]

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 <leon@is.currently.online>
Tested-by: Leon Schuermann <leon@is.currently.online>
Link: https://lore.kernel.org/r/20210111190312.12589-2-leon@is.currently.online
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/cdc_ether.c | 7 +++++++
 drivers/net/usb/r8152.c     | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 8c1d61c2cbacb..6aaa0675c28a3 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -793,6 +793,13 @@ static const struct usb_device_id	products[] = {
 	.driver_info = 0,
 },
 
+/* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+
 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */
 {
 	USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM,
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index b1770489aca51..88f177aca342e 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -6893,6 +6893,7 @@ static const struct usb_device_id rtl8152_table[] = {
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x720c)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7214)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x721e)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0xa387)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA,  0x09ff)},
-- 
2.27.0


  parent reply	other threads:[~2021-01-20  2:38 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-20  1:25 [PATCH AUTOSEL 5.10 01/45] ASoC: Intel: haswell: Add missing pm_ops Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 02/45] ASoC: rt711: mutex between calibration and power state changes Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 03/45] SUNRPC: Handle TCP socket sends with kernel_sendpage() again Sasha Levin
2021-02-08 19:34   ` Trond Myklebust
2021-02-08 19:48     ` Chuck Lever
2021-02-08 20:12       ` Trond Myklebust
2021-02-08 20:17         ` Chuck Lever
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 04/45] ASoC: AMD Renoir - add DMI entry for Lenovo ThinkPad E14 Gen 2 Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 05/45] HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 06/45] HID: sony: select CONFIG_CRC32 Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 07/45] dm integrity: select CRYPTO_SKCIPHER Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 08/45] x86/hyperv: Fix kexec panic/hang issues Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 09/45] scsi: ufs: Relax the condition of UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 10/45] scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 11/45] scsi: qedi: Correct max length of CHAP secret Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 12/45] scsi: scsi_debug: Fix memleak in scsi_debug_init() Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 13/45] scsi: sd: Suppress spurious errors when WRITE SAME is being disabled Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 14/45] riscv: Fix kernel time_init() Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 15/45] riscv: Fix sifive serial driver Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 16/45] riscv: Enable interrupts during syscalls with M-Mode Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 17/45] HID: logitech-dj: add the G602 receiver Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 18/45] HID: Ignore battery for Elan touchscreen on ASUS UX550 Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 19/45] clk: tegra30: Add hda clock default rates to clock driver Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 20/45] ALSA: hda/tegra: fix tegra-hda on tegra30 soc Sasha Levin
2021-01-20  1:25 ` Sasha Levin [this message]
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 22/45] riscv: cacheinfo: Fix using smp_processor_id() in preemptible Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 23/45] arm64: make atomic helpers __always_inline Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 24/45] xen: Fix event channel callback via INTX/GSI Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 25/45] x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 26/45] x86/xen: Fix xen_hvm_smp_init() when vector callback not available Sasha Levin
2021-01-20  1:35   ` Boris Ostrovsky
2021-01-24 13:11     ` Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 27/45] net: stmmac: use __napi_schedule() for PREEMPT_RT Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 28/45] net: stmmac: Fixed mtu channged by cache aligned Sasha Levin
2021-01-20  6:08   ` Jakub Kicinski
2021-01-20 14:26     ` Sasha Levin
2021-01-21 14:39       ` [Linux-stm32] " Ahmad Fatoum
2021-01-21 16:02         ` Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 29/45] dts: phy: fix missing mdio device and probe failure of vsc8541-01 device Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 30/45] dts: phy: add GPIO number and active state used for phy reset Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 31/45] riscv: defconfig: enable gpio support for HiFive Unleashed Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 32/45] drm/amdgpu/psp: fix psp gfx ctrl cmds Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 33/45] drm/amd/display: disable dcn10 pipe split by default Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 34/45] HID: logitech-hidpp: Add product ID for MX Ergo in Bluetooth mode Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 35/45] drm/amd/display: Fix to be able to stop crc calculation Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 36/45] drm/nouveau/bios: fix issue shadowing expansion ROMs Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 37/45] drm/nouveau/privring: ack interrupts the same way as RM Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 38/45] drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 39/45] drm/nouveau/mmu: fix vram heap sizing Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 40/45] drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0 Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 41/45] io_uring: flush timeouts that should already have expired Sasha Levin
2021-01-20  1:25 ` [PATCH AUTOSEL 5.10 42/45] libperf tests: If a test fails return non-zero Sasha Levin
2021-01-20  1:26 ` [PATCH AUTOSEL 5.10 43/45] libperf tests: Fail when failing to get a tracepoint id Sasha Levin
2021-01-20  1:26 ` [PATCH AUTOSEL 5.10 44/45] RISC-V: Set current memblock limit Sasha Levin
2021-01-20  1:26 ` [PATCH AUTOSEL 5.10 45/45] RISC-V: Fix maximum allowed phsyical memory for RV32 Sasha Levin

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