Thanks for the info. Sorry to ask you again, where does the usb driver (GobiNet in my case) comes into picture in receive packet flow. I suspect that the driver has to send some data (may be with some interrupts) to rx_complete and then it will go to rx_submit. Is my understanding is correct ? or if rx_submit is the first function to generate the data, then where does Gobinet driver comes into place. Could you please explain. I don't know how some usb driver works. This is the first time i am working on it.
On Wed, May 25, 2016 at 4:36 PM, Bjørn Mork <[email protected]> wrote: > Narasimha M <[email protected]> writes: > >> I am able to see the corrupted data in rx_complete itself. > > Then the only likely source is the device. In theory it could be the > host controller, but that is very unliekely unless you use some > out-of-tree driver there too. > > You can easily verify that usbnet can be ruled out by follwing the > earlier usbmon advice. > >> What are >> the possibilities for the data corruption in rx_complete. Any fixes to >> resolve this. And from where the data in rx_submit generates > > rx_submit allocates new buffers using __netdev_alloc_skb_ip_align() like > many other network drivers. > > > > Bjørn -- Narasimha _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
