Hello, I am someone who has been struggling to get an ax88179 net adapter working reliably. I have an integrated Asmedia 1042 xhci controller that is reportedly version 0.96 on an ASUS M5A99FX PRO R2.0, BIOS 2201 motherboard based on the AMD 990FX chipset. The big issue I am currently facing is that I cannot get the device to work at all with 3.13 and current 3.14 mainline. This does not occur with 3.12. Current issue is when plugging in the ax88179 there is lag when bringing the interface up and a bunch of kernel messages: [ 63.389440] ax88179_178a 2-1:1.0 eth0: register 'ax88179_178a' at usb-0000:07:00.0-1, ASIX AX88179 USB 3.0 Gigabit Ethernet, 80:3f:5d:08:0c:65 [ 63.389500] usbcore: registered new interface driver ax88179_178a [ 63.423942] systemd-udevd[560]: renamed network interface eth0 to enp7s0u1 [ 79.481028] IPv6: ADDRCONF(NETDEV_UP): enp7s0u1: link is not ready [ 82.210721] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [ 82.338947] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [ 82.467148] ax88179_178a 2-1:1.0 enp7s0u1: kevent 4 may have been dropped [ 82.470028] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [ 82.595364] ax88179_178a 2-1:1.0 enp7s0u1: kevent 4 may have been dropped [ 82.598312] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [ 82.723580] ax88179_178a 2-1:1.0 enp7s0u1: kevent 4 may have been dropped [ 82.726487] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [ 82.851796] ax88179_178a 2-1:1.0 enp7s0u1: kevent 4 may have been dropped [ 82.854642] ax88179_178a 2-1:1.0 enp7s0u1: ax88179 - Link status is: 1 [snip] [ 87.218379] ax88179_178a 2-1:1.0 enp7s0u1: Failed to write reg index 0x0002: -110 Any traffic sent to the nic isn't seen by Linux. I can confirm the following problems for me with 3.14: reverting the writeq patch made USB 3 work for me again. http://marc.info/?t=139093294600002&r=1&w=2 and http://marc.info/?l=linux-usb&m=139092084714232&w=2 got rid of transiever errors I cannot really test stability for the ax88179 until I can get it to work when plugging it in as above. I've tried the frag reversion and it's made no difference to this issue. Regards, Will Trives -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html