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Date: Mon, 7 Jan 2019 14:46:18 +0800
From: Kai Heng Feng <kai.heng.feng@...onical.com>
To: Mark Lord <mlord@...ox.com>
Cc: Ansis Atteka <aatteka@...ira.com>,
Hayes Wang <hayeswang@...ltek.com>,
David Miller <davem@...emloft.net>,
"greg@...ah.com" <greg@...ah.com>,
"romieu@...zoreil.com" <romieu@...zoreil.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
nic_swsd <nic_swsd@...ltek.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
Mario Limonciello <mario.limonciello@...l.com>
Subject: Re: r8152: data corruption in various scenarios
> On Jan 7, 2019, at 12:13, Mark Lord <mlord@...ox.com> wrote:
>
> On 2019-01-06 11:09 p.m., Kai Heng Feng wrote:
>>
>>
>>> On Jan 7, 2019, at 05:16, Mark Lord <mlord@...ox.com> 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@...ox.com> 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@...ox.com
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