MC7430 modem issue

[Markus Gothe]

The raw-ip mode should emulate an ethernet device instead of a "PPP-like" one like my implementation does.

My implementation is to prefer if one want to be able to do ethernet bridging and such stuff (however the ARP/NDP handling is left for the reader to figure out).

Just my 5 cents.

//M

Den 24 dec 2015 11:22 skrev Bjørn Mork <bjorn at mork.no>:
>
> dailijin <dailijin126 at 126.com> writes:
>
> > Hi All,
> >
> >
> > Refer to https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/drivers/net/usb/qmi_wwan.c?id=93725149794d3d418cf1eddcae60c7b536c5faa1 , I have added the patch into my qmi_wwan driver, and now I can get QMI response now, and also do QMI connection successfully  via command "qmi-network  /dev/cdc-wdm14 start", but can not fetch IP via dhclient now. I check the data format which is 'raw-ip', and can't be changed via qmi command, this maybe why I can't get IP. because I remember MC7304 and MC7354  can work before only after I set '802-3' as data format for them. 
> >
> >
> > Is there anyone have made MC7430 work?  I will appreciate you very much if you can give me some suggestions?
>
> Did you patch the driver for raw-ip support as well?  You'll need at
> least these 3 patches:
>
> https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/drivers/net/usb/usbnet.c?id=81e0ce79f2919dbd5f025894d29aa806af8695c7
> https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/drivers/net/usb/qmi_wwan.c?id=6c730080e663b1d629f8aa89348291fbcdc46cd9
> https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/drivers/net/usb/qmi_wwan.c?id=32f7adf633b9f99ad5089901bc7ebff57704aaa9
>
> Switch the netdev to raw-ip by
>
> echo Y >/sys/class/net/wwan0/qmi/raw_ip
>
> etc.
>
> If you want to do DHCP, then your choices of DHCP clients are limited at
> the moment.  But I found that the busybox DHCP client (udhcpc) works
> fine without any changes (although it still claims the interface is
> "ethernet").
>
> And finally, if you want kernel SLAAC, you'll either need to set a link
> local address manually, configure the interface for "stable-privacy"
> addresses, or get this patch for fully automatic addressing:
>
> https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/net/ipv6/addrconf.c?id=cc9da6cc4f56e05cc9e591459fe0192727ff58b3
>
> Bjørn
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