> On Jan 7, 2019, at 12:13, Mark Lord <mlord@xxxxxxxxx> wrote: > > On 2019-01-06 11:09 p.m., Kai Heng Feng wrote: >> >> >>> On Jan 7, 2019, at 05:16, Mark Lord <mlord@xxxxxxxxx> wrote: >>> >>> On 2019-01-06 4:13 p.m., Mark Lord wrote: >>>> On 2019-01-06 2:14 p.m., Kai Heng Feng wrote:>> On Jan 5, 2019, at 10:14 PM, Mark Lord >>>> <mlord@xxxxxxxxx> wrote: >>>> .. >>>>>> There is even now a special hack in the upstream r8152.c to attempt to detect >>>>>> a Dell TB16 dock and disable RX Aggregation in the driver to prevent such issues. >>>>>> >>>>>> Well.. I have a WD15 dock, not a TB16, and that same hack also catches my dock >>>>>> in its net: >>>>>> >>>>>> [5.794641] usb 4-1.2: Dell TB16 Dock, disable RX aggregation >>>>> >>>>> The serial should be unique according to Dell. >>>>> >>>>>> So one issue is that the code is not correctly identifying the dock, >>>>>> and the WD15 is claimed to be immune from the r8152 issues. >>>>> >>>>> The WD15 I tested didn't use that serial number though... >>>> >>>> What info do you need from me about the WD15 so this can be corrected? >>>> >>>>>> xhci_hcd 0000:39:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 13 >>>>>> comp_code 1 >>>>> >>>>> This is probably an xHC bug. A similar issue is fixed by commit 9da5a1092b13 >>>>> ("xhci: Bad Ethernet performance plugged in ASM1042A host”). >>>>> >>>>>> I just got that exact message above, with the r8152 in my 1-day old WD15 dock, >>>>>> with the TB16 "workaround" enabled in Linux kernel 4.20.0. >>>>> >>>>> Is the xHC WD15 connected an ASMedia one? >>>> >>>> I don't know. I *think* it identifies as a DSL6340 (see below). >>>> >>>> Here is lspci and lsusb: >>>> >>>> $ lspci -vt >>>> -[0000:00]-+-00.0 Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers >>>> +-02.0 Intel Corporation UHD Graphics 620 >>>> +-04.0 Intel Corporation Skylake Processor Thermal Subsystem >>>> +-14.0 Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller >>>> +-14.2 Intel Corporation Sunrise Point-LP Thermal subsystem >>>> +-15.0 Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 >>>> +-15.1 Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 >>>> +-16.0 Intel Corporation Sunrise Point-LP CSME HECI #1 >>>> +-1c.0-[01-39]----00.0-[02-39]--+-00.0-[03]-- >>>> | +-01.0-[04-38]-- >>>> | \-02.0-[39]----00.0 Intel Corporation DSL6340 USB 3.1 >>>> Controller [Alpine Ridge] >>>> +-1c.4-[3a]----00.0 Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter >>>> +-1d.0-[3b]----00.0 Samsung Electronics Co Ltd Device a808 >>>> +-1f.0 Intel Corporation Device 9d4e >>>> +-1f.2 Intel Corporation Sunrise Point-LP PMC >>>> +-1f.3 Intel Corporation Sunrise Point-LP HD Audio >>>> \-1f.4 Intel Corporation Sunrise Point-LP SMBus >>> >>> >>> Mmm.. lspci -vt isn't as verbose as I thought, so here is plain lspci to fill in the blanks: >>> >>> $ lspci >>> 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM >>> Registers (rev 08) >>> 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) >>> >>> 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08) >>> >>> 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) >>> >>> 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) >>> >>> 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 >>> (rev 21) >>> 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 >>> (rev 21) >>> 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) >>> >>> 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) >>> >>> 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) >>> >>> 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) >>> >>> 00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21) >>> >>> 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) >>> >>> 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) >>> >>> 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) >>> >>> 01:00.0 PCI bridge: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] >>> >>> 02:00.0 PCI bridge: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] >>> >>> 02:01.0 PCI bridge: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] >>> >>> 02:02.0 PCI bridge: Intel Corporation DSL6340 Thunderbolt 3 Bridge [Alpine Ridge 2C 2015] >>> >>> 39:00.0 USB controller: Intel Corporation DSL6340 USB 3.1 Controller [Alpine Ridge] >> >> So it’s not an ASMedia one. >> >> Before digging further, please make sure the system firmware (BIOS), Thunderbolt controller NVM and WD15 firmware are all up-to-date. > > Everything is completely up to date. Do you happen to use a Dell system? We can do some test here. Kai-Heng > > > -- > Mark Lord > Real-Time Remedies Inc. > mlord@xxxxxxxxx