Problem With Asix USB NIC (AX88772B) Module

[brando56894]

The included module for my Asix-based USB NIC spits out asix_rx_fixup() bad header length constantly when there is a lot of traffic over it. I googled it and this seems to be a common problem, but I haven't found anything from this year. A post that I saw recommended compiling the newest module from here. So I downloaded the kernel headers to my Pi and proceeded to compile the module, which compiled successfully (except for warnings about things may not be correct since the time was different since there isn't a RTC on my Pi). I then ran make install and rebooted. Upon completion I found that my usb interface was no longer loaded since the module fails with eth%d: failed to bind interface: error -19. I know I compiled the correct module for my device, anyone else have any suggestions?

$this->bbcode_second_pass_code('', ' [root@cerberus ~]# lsusb
Bus 001 Device 005: ID 0b95:772b ASIX Electronics Corp. AX88772B')


Also I just found all this in dmesg using the stock asix module
$this->bbcode_second_pass_code('', ' [root@cerberus ~]# dmesg|grep -i asix
[ 3.759668] usb 1-1.3: Manufacturer: ASIX Elec. Corp.
[ 5.222822] asix: Unknown symbol mdiobus_alloc_size (err 0)
[ 5.222964] asix: Unknown symbol phy_ethtool_sset (err 0)
[ 5.222990] asix: Unknown symbol phy_mii_ioctl (err 0)
[ 5.223037] asix: Unknown symbol phy_connect (err 0)
[ 5.223162] asix: Unknown symbol genphy_resume (err 0)
[ 5.223196] asix: Unknown symbol mdiobus_register (err 0)
[ 5.223319] asix: Unknown symbol mdiobus_free (err 0)
[ 5.223362] asix: Unknown symbol phy_start (err 0)
[ 5.223400] asix: Unknown symbol phy_print_status (err 0)
[ 5.223421] asix: Unknown symbol phy_start_aneg (err 0)
[ 5.223451] asix: Unknown symbol mdiobus_unregister (err 0)
[ 5.223488] asix: Unknown symbol phy_ethtool_gset (err 0)
[ 5.223562] asix: Unknown symbol phy_stop (err 0)
[ 5.223589] asix: Unknown symbol phy_disconnect (err 0)
[ 5.290087] asix: Unknown symbol mdiobus_alloc_size (err 0)
[ 5.290229] asix: Unknown symbol phy_ethtool_sset (err 0)
[ 5.290256] asix: Unknown symbol phy_mii_ioctl (err 0)
[ 5.290303] asix: Unknown symbol phy_connect (err 0)
[ 5.290429] asix: Unknown symbol genphy_resume (err 0)
[ 5.290464] asix: Unknown symbol mdiobus_register (err 0)
[ 5.290589] asix: Unknown symbol mdiobus_free (err 0)
[ 5.290631] asix: Unknown symbol phy_start (err 0)
[ 5.290737] asix: Unknown symbol phy_print_status (err 0)
[ 5.290767] asix: Unknown symbol phy_start_aneg (err 0)
[ 5.290807] asix: Unknown symbol mdiobus_unregister (err 0)
[ 5.290847] asix: Unknown symbol phy_ethtool_gset (err 0)
[ 5.290925] asix: Unknown symbol phy_stop (err 0)
[ 5.290953] asix: Unknown symbol phy_disconnect (err 0)
[ 5.481326] asix: Unknown symbol mdiobus_alloc_size (err 0)
[ 5.481470] asix: Unknown symbol phy_ethtool_sset (err 0)
[ 5.481499] asix: Unknown symbol phy_mii_ioctl (err 0)
[ 5.481547] asix: Unknown symbol phy_connect (err 0)
[ 5.481673] asix: Unknown symbol genphy_resume (err 0)
[ 5.481710] asix: Unknown symbol mdiobus_register (err 0)
[ 5.481835] asix: Unknown symbol mdiobus_free (err 0)
[ 5.481879] asix: Unknown symbol phy_start (err 0)
[ 5.481918] asix: Unknown symbol phy_print_status (err 0)
[ 5.481943] asix: Unknown symbol phy_start_aneg (err 0)
[ 5.481974] asix: Unknown symbol mdiobus_unregister (err 0)
[ 5.482014] asix: Unknown symbol phy_ethtool_gset (err 0)
[ 5.482090] asix: Unknown symbol phy_stop (err 0)
[ 5.482119] asix: Unknown symbol phy_disconnect (err 0)
[ 5.553703] asix: Unknown symbol mdiobus_alloc_size (err 0)
[ 5.553864] asix: Unknown symbol phy_ethtool_sset (err 0)
[ 5.553893] asix: Unknown symbol phy_mii_ioctl (err 0)
[ 5.553942] asix: Unknown symbol phy_connect (err 0)
[ 5.554071] asix: Unknown symbol genphy_resume (err 0)
[ 5.554110] asix: Unknown symbol mdiobus_register (err 0)
[ 5.554238] asix: Unknown symbol mdiobus_free (err 0)
[ 5.554282] asix: Unknown symbol phy_start (err 0)
[ 5.554323] asix: Unknown symbol phy_print_status (err 0)
[ 5.554347] asix: Unknown symbol phy_start_aneg (err 0)
[ 5.554379] asix: Unknown symbol mdiobus_unregister (err 0)
[ 5.554418] asix: Unknown symbol phy_ethtool_gset (err 0)
[ 5.554495] asix: Unknown symbol phy_stop (err 0)
[ 5.554525] asix: Unknown symbol phy_disconnect (err 0)
[ 65.808181] asix 1-1.3:1.0: eth1: register 'asix' at usb-bcm2708_usb-1.3, ASI X AX88772 USB 2.0 Ethernet, 00:50:b6:0e:26:0e
[ 65.808471] usbcore: registered new interface driver asix
[ 68.637318] asix 1-1.3:1.0: eth1: link up, 100Mbps, full-duplex, lpa 0xC1E1')

[GrizzlyAdams]

Add / remove usb hubs between the asix and your host. USB hubs will bump the URB out of alignment, which the asix driver can't handle. Basically the usb packet buffers are misaligned because of a hub, and the asix driver assumes it can 32bit DMA the usb data to/from the network layer buffers. I've been fighting this since 2010. You can add a fallback mode to the driver yourself, but it will be a massive performance hit. For some reason patches were never accepted upstream that would resolve the issue (probably "i don't have that issue here, so it doesn't exist" on the part of the asix driver maintainer.)

[brando56894]

Thanks for the info, but I don't have a hub between the two, it's directly connected to my Pi.

[moonman]

If it is a Model B the hub is built in into the Pi

[brando56894]

Yep it's a model b.

[brando56894]

So pretty much there's no fix for this?