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[Bug 1269883] Re: 0b95:1790 [Asus N55SF] Bad performance of Asix Ethernet-to-USB device on USB3 port

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: gouri <stephane.gourichon_lpad@xxxxxxx>
Date: Fri, 23 Oct 2015 17:06:17 -0000
Reply-to: Bug 1269883 <1269883@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Summary: behavior is different in Wily, sometimes not working, sometimes
working but fails on heavy traffic.

Done some test check booting a Asus n551 on Ubuntu 15.10 live (wily
werewolf).

## First test : one-way link only?

First (sanity check / scientific control), tested integrated Ethernet
port which works flawlessly.

With tested device (same Ethernet cable, cat 5e) at first try behavior seems to have improved compared with previous Ubuntu releases:
* ethernet auto-negociation is fast (like on previous kernels when it worked in USB2)
* mii-tool is fast (typical 0.05s) (like on previous kernels when it worked in USB2)
* few lines in dmesg (like on previous kernels when it worked in USB2)
* but DHCP does not complete

"tcpdump -n -i devicename" on both sides showed that packets sent by
tested device are received on remote side but packets sent from remote
side are not received by device (even ARP packets).

Tried reversing cable just in case, behavior is the same. Just plugging
the same cable to integrated Ethernet of same machine instead of tested
device, everything works.

Tested with another cable, same result.

## Subsequent tests: works then fails on heavy traffic

* Plugged the device in another USB port. Everything seemed to worked.
* Then tested again in the initial port. Worked again. Then after a moment (testing with dd anc nc), same problem (device received no packet).
* Unplugging then plugging the device -> no longer creates ethernet device enx(encodedmacaddress)
* Unplugging then plugging the device -> works again but load test using dd and nc quickly comes to the same problem.

Conclusion: behavior is different in Wiley, sometimes not working,
sometimes working. Problem seems different from previous ones.

I attached part of dmesg. Promiscuous mode is when I used tcpdump.


** Attachment added: "dmesg_test_asix_short.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269883/+attachment/4503341/+files/dmesg_test_asix_short.txt

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https://bugs.launchpad.net/bugs/1269883

Title:
  0b95:1790 [Asus N55SF] Bad performance of Asix Ethernet-to-USB device
  on USB3 port

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Plugging USB-to-ethernet device ID 0b95:1790 ASIX Electronics Corp. in
  USB3 port yields slow performance, dmesg flooded with errors. Plugging
  on USB2 port, exact same situation otherwise, works well. This is
  reproducible 3 out of 4 attempts. Machine has 2 USB3 ports on the
  left, 2 USB2 ports on the right.

  ### When working (USB2 port)
  * ethernet auto-negociation is fast
  * mii-tool is fast (typical 0.05s)
  * few lines in dmesg
  * good performance

  ### When failing :
  * ethernet auto-negociation fails, then sometimes eventually works
  * mii-tool is slow (10s of seconds instead of 0.05s)

  time sudo mii-tool
  eth0: no link
  eth1: 10 Mbit, half duplex, no link
  real	0m40.014s
  user	0m0.013s
  sys	0m0.006s

  time sudo mii-tool
  eth0: no link
  eth1: 10 Mbit, half duplex, no link
  real	0m50.015s
  user	0m0.011s
  sys	0m0.011s

  time sudo mii-tool
  eth0: no link
  eth1: negotiated 100baseTx-FD, link ok
  real	0m10.051s
  user	0m0.000s
  sys	0m0.012s

  But on some attempts mii-tool is fast...
  time sudo mii-tool
  eth0: no link
  eth1: negotiated 100baseTx-FD, link ok
  real	0m0.057s
  user	0m0.011s
  sys	0m0.012s

  * DHCP eventually completes (after about 30 seconds) then ethernet works.
  * whole system behaviour feels a little sluggish (not very clear, though)
  * mii-tool still slow (10s of seconds instead of 0.05s)

  ## dmesg when failing

  Full dmesg attached.

  Specific lines with occurrence count at random point (obtained with
  "dmesg | sed 's/^................//' | sort | uniq -c | sort -n" ).

       50 ei_me 0000:00:16.0: reset: wrong host start response
       51 ei_me 0000:00:16.0: reset: unexpected enumeration response hbm.
       60 ax88179_178a 4-1:1.0 eth1: kevent 4 may have been dropped
      100 ei_me 0000:00:16.0: unexpected reset: dev_state = RESETTING
      141 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD
      214 ax88179_178a 4-1:1.0 eth1: ax88179 - Link status is: 1

  Another attempt

       11 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0000: -110
       14 ax88179_178a 4-1:1.0 eth1: Failed to write reg index 0x0002: -110
       61 xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
       61 xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      209 ax88179_178a 4-1:1.0 eth1: kevent 4 may have been dropped
      809 ax88179_178a 4-1:1.0 eth1: ax88179 - Link status is: 1
      925 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD

        5 IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0001: -110
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0009: -110
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x000a: -110
        6 net_ratelimit: 31 callbacks suppressed
        9 IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
       10 net_ratelimit: 30 callbacks suppressed
       14 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0000: -110
       14 ax88179_178a 4-1:1.0 eth1: Failed to write reg index 0x0002: -110
      209 ax88179_178a 4-1:1.0 eth1: kevent 4 may have been dropped
      232 xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      232 xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      610 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD
      809 ax88179_178a 4-1:1.0 eth1: ax88179 - Link status is: 1

      Jan 16 18:39:35 n55sf-l kernel: [203181.206451] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203181.578841] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203181.578854] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203182.075350] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203182.075364] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203182.199491] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203182.199504] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203182.944174] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:37 n55sf-l kernel: [203182.944178] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203183.068300] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:37 n55sf-l kernel: [203183.068305] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203183.192433] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr

  ## On USB2 port everything fine.
      Jan 16 18:26:44 n55sf-l kernel: [202408.897761] usb 2-1.4: new high-speed USB device number 18 using ehci-pci
      Jan 16 18:26:44 n55sf-l kernel: [202408.996745] usb 2-1.4: New USB device found, idVendor=0b95, idProduct=1790
      Jan 16 18:26:44 n55sf-l kernel: [202408.996757] usb 2-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
      Jan 16 18:26:44 n55sf-l kernel: [202408.996763] usb 2-1.4: Product: AX88179
      Jan 16 18:26:44 n55sf-l kernel: [202408.996769] usb 2-1.4: Manufacturer: ASIX Elec. Corp.
      Jan 16 18:26:44 n55sf-l kernel: [202408.996774] usb 2-1.4: SerialNumber: 00000000000116
      Jan 16 18:26:44 n55sf-l kernel: [202409.325222] ax88179_178a 2-1.4:1.0 eth1: register 'ax88179_178a' at usb-0000:00:1d.0-1.4, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:05:1b:a3:37:f6
      Jan 16 18:26:45 n55sf-l kernel: [202409.681691] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
      Jan 16 18:26:45 n55sf-l kernel: [202409.685338] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
      Jan 16 18:26:47 n55sf-l kernel: [202411.782132] ax88179_178a 2-1.4:1.0 eth1: ax88179 - Link status is: 1
      Jan 16 18:26:47 n55sf-l kernel: [202411.785044] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready

  ## Once things went fine on a USB3 port
      Jan 16 18:27:45 n55sf-l kernel: [202470.636671] usb 3-2: new high-speed USB device number 12 using xhci_hcd
      Jan 16 18:27:46 n55sf-l kernel: [202470.689067] usb 3-2: New USB device found, idVendor=0b95, idProduct=1790
      Jan 16 18:27:46 n55sf-l kernel: [202470.689079] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
      Jan 16 18:27:46 n55sf-l kernel: [202470.689085] usb 3-2: Product: AX88179
      Jan 16 18:27:46 n55sf-l kernel: [202470.689090] usb 3-2: Manufacturer: ASIX Elec. Corp.
      Jan 16 18:27:46 n55sf-l kernel: [202470.689095] usb 3-2: SerialNumber: 00000000000116
      Jan 16 18:27:46 n55sf-l kernel: [202471.012136] ax88179_178a 3-2:1.0 eth1: register 'ax88179_178a' at usb-0000:04:00.0-2, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:05:1b:a3:37:f6
      Jan 16 18:27:46 n55sf-l kernel: [202471.367771] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
      Jan 16 18:27:46 n55sf-l kernel: [202471.371383] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
      Jan 16 18:27:48 n55sf-l kernel: [202473.414584] ax88179_178a 3-2:1.0 eth1: ax88179 - Link status is: 1
      Jan 16 18:27:48 n55sf-l kernel: [202473.416586] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready

  ## Then bad again on next attempt on USB3 port with different infinite loop of error messages:
       11 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0000: -110
       14 ax88179_178a 4-1:1.0 eth1: Failed to write reg index 0x0002: -110
       61 xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
       61 xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      209 ax88179_178a 4-1:1.0 eth1: kevent 4 may have been dropped
      809 ax88179_178a 4-1:1.0 eth1: ax88179 - Link status is: 1
      925 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD

        5 IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0001: -110
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0009: -110
        6 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x000a: -110
        6 net_ratelimit: 31 callbacks suppressed
        9 IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
       10 net_ratelimit: 30 callbacks suppressed
       14 ax88179_178a 4-1:1.0 eth1: Failed to read reg index 0x0000: -110
       14 ax88179_178a 4-1:1.0 eth1: Failed to write reg index 0x0002: -110
      209 ax88179_178a 4-1:1.0 eth1: kevent 4 may have been dropped
      232 xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      232 xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      610 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD
      809 ax88179_178a 4-1:1.0 eth1: ax88179 - Link status is: 1

      Jan 16 18:39:35 n55sf-l kernel: [203181.206451] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203181.578841] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203181.578854] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203182.075350] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203182.075364] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:36 n55sf-l kernel: [203182.199491] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:36 n55sf-l kernel: [203182.199504] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203182.944174] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:37 n55sf-l kernel: [203182.944178] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203183.068300] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
      Jan 16 18:39:37 n55sf-l kernel: [203183.068305] xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
      Jan 16 18:39:37 n55sf-l kernel: [203183.192433] xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr

  ## Additional attempts on USB2 port went fine.

  https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.10
  Re: ERROR transfer event TRB DMA ptr not part of current TD -- Linux USB http://www.spinics.net/lists/linux-usb/msg85388.html

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-15-generic 3.11.0-15.23
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  stephane   1815 F.... pulseaudio
  Date: Thu Jan 16 18:34:32 2014
  HibernationDevice: RESUME=UUID=d05e8def-662d-4d3a-b3b3-4d9d2997966d
  MachineType: ASUSTeK Computer Inc. N55SF
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=12f862a8-f6b9-4c9e-8bf7-030b86b75241 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/29/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N55SF.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: N55SF
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN55SF.207:bd08/29/2011:svnASUSTeKComputerInc.:pnN55SF:pvr1.0:rvnASUSTeKComputerInc.:rnN55SF:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: N55SF
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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References

[Bug 1269883] [NEW] Bad performance of Ethernet on USB3 port, dmesg flooded with errors
From: gouri, 2014-01-16