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Date: Fri, 14 Mar 2014 08:58:03 +0100
From: Mrkiko Rs <mrkiko.rs@...il.com>
To: Pasi Kärkkäinen <pasik@....fi>
Cc: Dan Williams <dcbw@...hat.com>,
Bjørn Mork <bjorn@...k.no>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
Oliver Neukum <oliver@...kum.org>
Subject: Re: [PATCH net-next v6 0/3] The huawei_cdc_ncm driver / E3276 problem
Which dhcp client are you using?
Inviato da iPhone
> Il giorno 14/mar/2014, alle ore 08:55, "Pasi Kärkkäinen" <pasik@....fi> ha scritto:
>
>> On Fri, Mar 14, 2014 at 12:08:12AM +0200, Pasi Kärkkäinen wrote:
>>> On Thu, Mar 13, 2014 at 04:41:47PM -0500, Dan Williams wrote:
>>>> On Thu, 2014-03-13 at 22:25 +0200, Pasi Kärkkäinen wrote:
>>>>> On Mon, Nov 04, 2013 at 09:50:46AM +0100, Bjørn Mork wrote:
>>>>>
>>>>> [quote Enrico Mioso]
>>>>>
>>>>> So this is a new, revised, edition of the huawei_cdc_ncm.c driver, which
>>>>> supports devices resembling the NCM standard, but using it also as a mean
>>>>> to encapsulate other protocols, as is the case for the Huawei E3131 and
>>>>> E3251 modem devices.
>>>>
>>>> Hello,
>>>>
>>>> I'm trying to use Huawei E3276 4G/LTE USB dongle with Linux 3.13.6 kernel,
>>>> and thus i'm using the new huawei_cdc_ncm driver.
>>>>
>>>> I'm using the /dev/cdc-wdm0 device to send AT commands to it, and that seems to work,
>>>> so the dongle seems like it's connected (also the LED on the dongle suggests it's connected).
>>>>
>>>> .. the problem is the wwan0 interface (well, udev renames it to wwp0s26u1u5i1) doesn't work.
>>>> Launching a dhcp client on the wwp0s26u1u5i1 doesn't get any IP address.
>>>>
>>>> Any tips how to troubleshoot this?
>>
>> Hi,
>>
>>> Which AT commands are you using to start the data connection?
>>
>> I've been using:
>>
>> ATQ0 V1 E1 S0=0
>> AT^NDISDUP=1,1,"internet"
>> AT^DHCP?
>
> Oh, I forgot to mention.. after I send AT^NDISDUP=1,1,"internet" I get this:
>
> ^NDISSTAT:1,,,"IPV4"
>
> .. which to my understanding means it's connected (1==connected).
> Also sending AT^NDISSTATQRY? results in:
>
> ^NDISSTATQRY: 1,,,"IPV4"
>
>
> But I can't get an IP with dhcp client on the wwan0 interface..
>
>
> -- Pasi
>
>
>>
>>> I believe Huawei says that DHCP on the network port is only supported if
>>> network port's USB interface has Class 0x2 + SubClass [0x6 | 0xd] +
>>> Protocol 0x0.
>>
>> # lsusb | grep -i huawei
>> Bus 001 Device 010: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard
>>
>> # lsusb -t
>> ..
>> |__ Port 5: Dev 10, If 0, Class=Vendor Specific Class, Driver=option, 480M
>> |__ Port 5: Dev 10, If 1, Class=Vendor Specific Class, Driver=huawei_cdc_ncm, 480M
>> |__ Port 5: Dev 10, If 2, Class=Mass Storage, Driver=usb-storage, 480M
>> |__ Port 5: Dev 10, If 3, Class=Mass Storage, Driver=usb-storage, 480M
>>
>> Bus 001 Device 010: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 0 (Defined at Interface level)
>> bDeviceSubClass 0
>> bDeviceProtocol 0
>> bMaxPacketSize0 64
>> idVendor 0x12d1 Huawei Technologies Co., Ltd.
>> idProduct 0x1506 Modem/Networkcard
>> bcdDevice 1.02
>> iManufacturer 2 HUAWEI Technology
>> iProduct 1 HUAWEI Mobile
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 173
>> bNumInterfaces 4
>> bConfigurationValue 1
>> iConfiguration 3 Huawei Configuration
>> bmAttributes 0x80
>> (Bus Powered)
>> MaxPower 500mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 255 Vendor Specific Class
>> bInterfaceSubClass 2
>> bInterfaceProtocol 18
>> iInterface 0
>> ** UNRECOGNIZED: 05 24 00 10 01
>> ** UNRECOGNIZED: 04 24 02 02
>> ** UNRECOGNIZED: 05 24 01 00 00
>> ** UNRECOGNIZED: 06 24 06 00 00 00
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 32
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x01 EP 1 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 32
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 255 Vendor Specific Class
>> bInterfaceSubClass 2
>> bInterfaceProtocol 22
>> iInterface 0
>> ** UNRECOGNIZED: 05 24 00 10 01
>> ** UNRECOGNIZED: 06 24 1a 00 01 1f
>> ** UNRECOGNIZED: 0d 24 0f 04 0f 00 00 00 ea 05 03 00 01
>> ** UNRECOGNIZED: 05 24 06 01 01
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x82 EP 2 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0040 1x 64 bytes
>> bInterval 5
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 1
>> bNumEndpoints 3
>> bInterfaceClass 255 Vendor Specific Class
>> bInterfaceSubClass 2
>> bInterfaceProtocol 22
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x82 EP 2 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0040 1x 64 bytes
>> bInterval 5
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x83 EP 3 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 32
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x02 EP 2 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 32
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 2
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 8 Mass Storage
>> bInterfaceSubClass 6 SCSI
>> bInterfaceProtocol 80 Bulk-Only
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x03 EP 3 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x84 EP 4 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 3
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 8 Mass Storage
>> bInterfaceSubClass 6 SCSI
>> bInterfaceProtocol 80 Bulk-Only
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x04 EP 4 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x85 EP 5 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Device Qualifier (for other device speed):
>> bLength 10
>> bDescriptorType 6
>> bcdUSB 2.00
>> bDeviceClass 0 (Defined at Interface level)
>> bDeviceSubClass 0
>> bDeviceProtocol 0
>> bMaxPacketSize0 64
>> bNumConfigurations 1
>> Device Status: 0x0000
>> (Bus Powered)
>>
>>
>>> Lastly, I think the E3276 has a couple of different "modes" that it can
>>> switch into with usb_modeswitch too, and only some modes expose the
>>> right network interface. What modeswitch command is getting sent to the
>>> device?
>>
>> This is on Fedora 20.
>>
>> Mar 13 23:56:36 localhost logger: usb_modeswitch: using overriding config file /etc/usb_modeswitch.d/12d1:14fe; make sure this is intended
>> Mar 13 23:56:36 localhost logger: usb_modeswitch: please report any new or corrected settings; otherwise, check for outdated files
>> Mar 13 23:56:36 localhost usb_modeswitch: switching device 12d1:14fe on 001/009
>> Mar 13 23:56:37 localhost logger: usb_modeswitch: switched to 12d1:1506 on 001/010
>>
>> # cat /etc/usb_modeswitch.d/12d1:14fe
>>
>> # T-Mobile NL (Huawei E352)
>>
>> TargetVendor= 0x12d1
>> TargetProductList="1506,150f,151d"
>>
>> MessageContent="55534243123456780000000000000011062000000100000000000000000000"
>>
>>
>> # grep -i e3276 /etc/usb_modeswitch.d/*
>> /etc/usb_modeswitch.d/12d1:156a:# Huawei E3276s-151 and E3251
>>
>>
>> # cat /etc/usb_modeswitch.d/12d1:156a
>>
>> # Huawei E3276s-151 and E3251
>>
>> TargetVendor= 0x12d1
>> TargetProductList="156b,156c"
>>
>> MessageContent="55534243123456780000000000000011062000000100000000000000000000"
>>
>>
>>
>> Hopefully that was enough information..
>>
>> Thanks!
>>
>> -- Pasi
>>
>>
>>> Dan
>>>
>>>> I'm seeing "RX errors" listed for the interface in "ifconfig -a" output.. is that normal?
>>>>
>>>> The device in question is (ATI command output):
>>>>
>>>> Manufacturer: huawei
>>>> Model: E3276
>>>> Revision: 21.263.03.00.07
>>>> IMEI: 863XYZXYZXYZXYZ
>>>> +GCAP: +CGSM,+DS,+ES
>>>>
>>>> Thanks!
>>>>
>>>> -- Pasi
>>>>
>>>>
>>>>> Some precisations are needed however - and I encourage discussion on this: and
>>>>> that's why I'm sending this message with a broader CC.
>>>>> Merging those patches might change:
>>>>> - the way Modem Manager interacts with those devices
>>>>> - some regressions might be possible if there are some unknown firmware
>>>>> variants around (Franko?)
>>>>>
>>>>> First of all: I observed the behaviours of two devices.
>>>>> Huawei E3131: this device doesn't accept NDIS setup requests unless they're
>>>>> sent via the embedded AT channel exposed by this driver.
>>>>> So actually we gain funcionality in this case!
>>>>>
>>>>> The second case, is the Huawei E3251: which works with standard NCM driver,
>>>>> still exposing an AT embedded channel. Whith this patch set applied, you gain
>>>>> some funcionality, loosing the ability to catch standard NCM events for now.
>>>>> The device will work in both ways with no problems, but this has to be
>>>>> acknowledged and discussed. Might be we can develop this driver further to
>>>>> change this, when more devices are tested.
>>>>>
>>>>> We where thinking Huawei changed their interfaces on new devices - but probably
>>>>> this driver only works around a nice firmware bug present in E3131, which
>>>>> prevented the modem from being used in NDIS mode.
>>>>>
>>>>> I think committing this is definitely wortth-while, since it will allow for
>>>>> more Huawei devices to be used without serial connection. Some devices like the
>>>>> E3251 also, reports some status information only via the embedded AT channel,
>>>>> at least in my case.
>>>>> Note: I'm not subscribed to any list except the Modem Manager's one, so please
>>>>> CC me, thanks!!
>>>>>
>>>>> [/quote]
>>>>>
>>>>> Enrico Mioso (3):
>>>>> net: cdc_ncm: Export cdc_ncm_{tx,rx}_fixup functions for re-use
>>>>> net: huawei_cdc_ncm: Introduce the huawei_cdc_ncm driver
>>>>> net: cdc_ncm: remove non-standard NCM device IDs
>>>>>
>>>>> drivers/net/usb/Kconfig | 15 +++
>>>>> drivers/net/usb/Makefile | 1 +
>>>>> drivers/net/usb/cdc_ncm.c | 17 +--
>>>>> drivers/net/usb/huawei_cdc_ncm.c | 230 ++++++++++++++++++++++++++++++++++++++
>>>>> include/linux/usb/cdc_ncm.h | 3 +
>>>>> 5 files changed, 253 insertions(+), 13 deletions(-)
>>>>> create mode 100644 drivers/net/usb/huawei_cdc_ncm.c
>>>>>
>>>>> --
>>>>> 1.7.10.4
>>>>>
>>>>> --
>>>>> To unsubscribe from this list: send the line "unsubscribe netdev" in
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>>>> --
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>>>
>>>
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