The USB Communications Device Class "Mobile Broadband Interface Model" (MBIM) is the USB-IFs alternative to the current chipset/vendor specific solutions to "Mobile Broadband" device management. The specification, including the management protocol description, can be downloaded from http://www.usb.org/developers/devclass_docs#approved This driver implementing most MBIM features with the exception of 32bit NTB and NDP headers. An important design principle has been reusing as much as possible of existing kernel code, in particular the cdc_ncm and cdc_wdm drivers. The CDC MBIM protocol is based on CDC NCM, and much of the setup and framing logic is very similar. One important addition in MBIM compared to NCM is the new control protocol embedded in CDC commands. This protocol is comprehensive and support a number of policy decisions necessary for modern mobile broadband devices often having multiple radio interfaces. Based on early comments and the experiences with the qmi_wwan driver, knowledge of the control protocol has been kept completely out of the driver. This is userspace material. Like with qmi_wwan, a control protocol interface is exported to userspace using the cdc_wdm subdriver API, associating a /dev/cdc-wdmX character device with the network device for the management application. Patch 1 and 2 are independent of the rest and only required to make test devices with very large buffers work. Patch 3 adds new MBIM definitions to the cdc.h header file Patches 4 to 9 refactor the cdc_ncm driver to enable reusing common parts for MBIM. Patches 10 and 11 add the new cdc_mbim driver Patch 12 prevents cdc_ncm from binding to backward compatible MBIM devices Patches 13 and 14 extend the MBIM driver to support multiplexed sessions The changes to the cdc_ncm driver has been tested and verified to work with an Ericsson F5521gw device. The new cdc_mbim driver has been tested with a Huawei E367u-2 device with MBIM firmware, and other currently undisclosed devices. Enjoy! Bjørn Mork (10): net: usbnet: make sure the queue lenght is at least 1 net: cdc_ncm: use device rx_max value if update failed net: cdc_ncm: process chained NDPs net: cdc_ncm: splitting rx_fixup for code reuse net: cdc_ncm: refactoring for tx multiplexing net: cdc_ncm: export shared symbols and definitions net: cdc_mbim: build the MBIM driver net: cdc_ncm: do not bind to NCM compatible MBIM devices net: cdc_ncm: map MBIM IPS SessionID to VLAN ID net: cdc_mbim: Device Service Stream support Greg Suarez (4): USB: cdc: add MBIM constants and structures net: cdc_ncm: adding MBIM support to ncm_setup net: cdc_ncm: refactor bind preparing for MBIM support net: cdc_mbim: adding MBIM driver drivers/net/usb/Kconfig | 18 ++ drivers/net/usb/Makefile | 1 + drivers/net/usb/cdc_mbim.c | 412 ++++++++++++++++++++++++++++++++ drivers/net/usb/cdc_ncm.c | 546 +++++++++++++++++++++---------------------- drivers/net/usb/usbnet.c | 4 +- include/linux/usb/cdc.h | 23 ++ include/linux/usb/cdc_ncm.h | 134 +++++++++++ 7 files changed, 856 insertions(+), 282 deletions(-) create mode 100644 drivers/net/usb/cdc_mbim.c create mode 100644 include/linux/usb/cdc_ncm.h -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
