On 8 March 2012 15:23, Xu, Andiry <Andiry.Xu@xxxxxxx> wrote: > I don't know why my email is mangled so I remove all the receivers. > Please reply the mail adding Larry, Sarah and USB list. > >> -----Original Message----- >> From: Andiry Xu [mailto:andiry.xu@xxxxxxx] >> Sent: Thursday, March 08, 2012 3:12 PM >> To: jerome huang >> Cc: Larry Finger; linux-wireless@xxxxxxxxxxxxxxx; Sarah Sharp; linux- >> usb@xxxxxxxxxxxxxxx >> Subject: Re: rt8192cu on USB3 >> >> On 03/08/2012 02:35 PM, jerome huang wrote: >> > >> > I also tried to slow down between each write during firmware upload, >> > and enlarge the ring size in xhci_endpoint_init(), >> > but it seems that the trbs in the ring are not processed and >> > the incoming trb is always queued till ring full. >> > >> > > This is interesting thing. How do you find out the trbs in the ring are > not processed? Do you see handle_tx_event() triggers and urbs are > givenback in the irq handler? > > There is a new version of ring expansion patchset: > > www.spinics.net/lists/linux-usb/msg59391.html > > But I'm not sure if it helps in your case. if the trbs are continuously > queued but without completion, ring expansion will loop until memory is > depleted. > > Thanks, > Andiry > > Hi all, I tried to print more information for firmware upload, and handle_tx_event is triggered and urbs are givenback. This time I found the first "no room on ep ring" is before "Loading firmware file" (line 176) and there is no error during firmware upload, after firmware upload completion, "no room on ep ring" appears continuously (line 264). So the problem is not in firmware upload, but in the other place after firmware upload? Please let me know if you need other debug messages. BR, Jerome
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