Ok it appears I was wrong about the NEC quirk. Here is what i'm seeing at the moment: The ax88179 is only working for me on the Renesas uPD720201 via a USB 3.0 HUB. However for some reason once I use the hub I get : xhci_hcd 0000:02:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? With the power port v4 patch set for some reason it seemed like all that was needed was the NEC quirk to get them to stop. I don't get the TRUST warning when using the Vantec Nexstar Dual Bay disk dock connected directly, it works fine no warnings, very fast transfers. So ... ax88179 via hub = works but warning ax88179 direct connect = can bring interface up but can only xfer a very small amount of data before the nic stops responding When using the hub the performance of the ax88179 is great, it's completely reliable and achieves 117.8MB/sec both directions. It's looking like whatever is stopping the ax88179 from working with the Asmedia 1042 may also be stopping it working on the uPD720201 BUT the uPD720201 has a workaround where a HUB with it works with the TRUST warning. The kernel i'm currently running matches your for-linus branch except I set the sg size to ~0u Regards, Will Trives On Thursday 06 February 2014 08:53:52 Sarah Sharp wrote: > On Thu, Feb 06, 2014 at 07:42:33PM +1100, renevant@xxxxxxxxxxxxxxxx wrote: > > Hello guys, > > > > Currently i've done this in xhci-pci.c > > > > #define PCI_VENDOR_ID_RENESAS 0x1912 > > #define PCI_DEVICE_ID_RENESAS_UPD720201 0x0014 > > > > if (pdev->vendor == PCI_VENDOR_ID_RENESAS && > > > > pdev->device == PCI_DEVICE_ID_RENESAS_UPD720201 && > > > > pdev->revision == 0x3) > > > > xhci->quirks |= XHCI_NEC_HOST; > > > > The warnings are gone. > > Which warnings are gone? > > > Perhaps this quirk needs to apply to all Renesas controllers ? This > > addition i've made obviously specifically matches the card I've got but > > the NEC match in xhci-pci.c obviously isn't matching the Renesas vendor > > ID only NEC.> > > if (pdev->vendor == PCI_VENDOR_ID_NEC) > > > > xhci->quirks |= XHCI_NEC_HOST; > > > > Maybe this needs an && PCI_VENDOR_ID_RENESAS > > The only thing this quirk does is submit a command to get the NEC > firmware version, and then print it out. It should have no impact > on host controller behavior. > > So, what warnings disappeared when you turned this quirk on? > > Sarah Sharp -- 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
