Hi Subash, 2018-02-21 20:47 GMT+01:00 Subash Abhinov Kasiviswanathan <subas...@codeaurora.org>: > On 2018-02-21 04:38, Daniele Palmas wrote: >> >> Hello, >> >> in rmnet kernel documentation I read: >> >> "This driver can be used to register onto any physical network device in >> IP mode. Physical transports include USB, HSIC, PCIe and IP accelerator." >> >> Does this mean that it can be used in association with the qmi_wwan >> driver? >> >> If yes, can someone give me an hint on the steps to follow? >> >> If not, does anyone know if it is possible to modify qmi_wwan in order >> to take advantage of the features provided by the rmnet driver? >> >> In this case hint on the changes for modifying qmi_wwan are welcome. >> >> Thanks in advance, >> Daniele > > > Hi > > I havent used qmi_wwan so the following comment is based on code inspection. > qmimux_register_device() is creating qmimux devices with usb net device as > real_dev. The Multiplexing and aggregation header (qmimux_hdr) is stripped > off > in qmimux_rx_fixup() and the packet is passed on to stack. > > You could instead create rmnet devices with the usb netdevice as real dev. > The packets from the usb net driver can be queued to network stack directly > as rmnet driver will setup a RX handler. rmnet driver will process the > packets > further and then queue to network stack. >
Thanks, I will try to do some testing and report my findings. Regards, Daniele > -- > Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, > a Linux Foundation Collaborative Project
