On Wed, Mar 18, 2015 at 08:52:29 +0100, Oliver Neukum wrote:
> On Tue, 2015-03-17 at 20:49 +0100, Bjørn Mork wrote:
> > Sami Farin <hvtaifwkbgefbaei@xxxxxxxxx> writes:
> > > On Mon, Feb 23, 2015 at 11:59:14 +0100, Bjørn Mork wrote:
> > >> So my conclusion is that there is some higher level USB communication
> > >> problem here, not directly involving neither usbnet nor the minidriver.
> > >
> > > Do you have new ideas as to where the problem might be?
> > > I have now used the cdc_ether driver to transfer 1 TiB with zero rx/tx errors.
> >
> > OK, that is an indication that my wild guess was wrong.
> >
> > I have really no idea why this fails. We obviously do something the
> > modem doesn't like, but I don't know what it is. Sorry
> >
> > > I also noticed cdc_ether initialization or something does not work with kernel
> > > 4.0.0-rc4, I have to first setup it in 3.18.9 and then reboot to 4.0.0-rc4.
> >
> > That is unexpected and even more difficult to explain. There aren't
> > many changes to usbnet or cdc_ether between v3.18 and v4.0-rc4:
> >
> > bjorn@nemi:/usr/local/src/git/linux$ git log --oneline v3.18..v4.0-rc4 -- drivers/net/usb/{usbnet,cdc_ether}.c
> > 51487ae736fe usbnet: re-use native hex2bin()
> > f46ad73ac696 cdc-ether: implement MULTICAST flag on the device
> > 55b42b5ca2dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
> >
> >
> > I gues the only possibility is the multicast filter change, but it
> > doesn't look like that should change anything by default. Any ideas on
> > this one, Oliver?
>
> Are you sure there's no firmware upload involved? Otherwise, yes
> the most likely is the multicast change.
>
> Regards
> Oliver
I tried reverting f46ad73ac696 in 4.0.0-rc5, did not help. Have to reboot first into 3.18.9.
This happens:
[ 2765.268081] usb 2-1.4.4: USB disconnect, device number 16
[ 2777.209388] usb 2-1.4.4: new high-speed USB device number 17 using ehci-pci
[ 2777.303172] usb 2-1.4.4: New USB device found, idVendor=12d1, idProduct=157d
[ 2777.303174] usb 2-1.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2777.303176] usb 2-1.4.4: Product: HUAWEI_MOBILE
[ 2777.303177] usb 2-1.4.4: Manufacturer: HUAWEI_MOBILE
[ 2777.303178] usb 2-1.4.4: SerialNumber: 0123456789ABCDEF
[ 2777.325198] usb-storage 2-1.4.4:1.0: USB Mass Storage device detected
[ 2777.325282] scsi host37: usb-storage 2-1.4.4:1.0
[ 2777.903039] usb 2-1.4.4: usbfs: interface 0 claimed by usb-storage while 'usb_modeswitch' sets config #2
[ 2778.359341] usb-storage 2-1.4.4:2.2: USB Mass Storage device detected
[ 2778.359429] scsi host38: usb-storage 2-1.4.4:2.2
[ 2779.363860] scsi 38:0:0:0: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2
[ 2779.364626] sd 38:0:0:0: Attached scsi generic sg5 type 0
[ 2779.367101] sd 38:0:0:0: [sde] Attached SCSI removable disk
in 3.18.9, usb_modeswitch switches to 12d1:14dc, and cdc_ether works, 4.0.0-rc5 stays in 12d1:157d ..
3.18.9 dmesg:
[ 1.924582] usb 3-1: New USB device found, idVendor=12d1, idProduct=157d
[ 1.924642] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.924697] usb 3-1: Product: HUAWEI_MOBILE
[ 1.924754] usb 3-1: Manufacturer: HUAWEI_MOBILE
[ 1.924807] usb 3-1: SerialNumber: 0123456789ABCDEF
[ 73.094489] usb 3-1: USB disconnect, device number 2
[ 73.956013] usb 3-1: new high-speed USB device number 3 using xhci_hcd
[ 74.125893] usb 3-1: New USB device found, idVendor=12d1, idProduct=14dc
[ 74.125906] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 74.125909] usb 3-1: Product: HUAWEI_MOBILE
[ 74.125911] usb 3-1: Manufacturer: HUAWEI_MOBILE
[ 74.210164] usb-storage 3-1:1.2: USB Mass Storage device detected
[ 74.210435] scsi host12: usb-storage 3-1:1.2
[ 75.181489] usbcore: registered new interface driver cdc_ether
[ 75.211529] scsi 12:0:0:0: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2
[ 75.212156] sd 12:0:0:0: Attached scsi generic sg5 type 0
[ 75.213172] sd 12:0:0:0: [sde] Attached SCSI removable disk
[ 75.693336] cdc_ether 3-1:1.0 lte: renamed from eth0
3.18.9, usb_modeswitch says:
no MBIM driver found, switch to legacy modem mode
4.0.0-rc5:
driver for MBIM devices is available
Find MBIM configuration number ...
/etc/usb_modeswitch.d/12d1:157d has:
# Huawei E3331
TargetVendor=0x12d1
TargetProduct=0x14db
HuaweiNewMode=1
If there exists a working device I can use in bridge mode (LTE, Sonera Opengate), I'd be happy to hear.
--
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