[for those who reviewed v1 of this series: patch #1 is the only one changed in v2] 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 works around a firmware bug in one of the MBIM test devices Patch 2 adds new MBIM definitions to the cdc.h header file Patches 3 to 8 refactor the cdc_ncm driver to enable reusing common parts for MBIM. Patches 9 and 10 add the new cdc_mbim driver Patch 11 prevents cdc_ncm from binding to backward compatible MBIM devices Patches 12 and 13 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! patch series changelog: v2: - dropped v1 patch 1 - reworked the firmware bug workaround in v1 patch 2 (which is now 1) - acks noted Bjørn Mork (9): net: cdc_ncm: workaround NTB input size firmware bug 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 | 584 ++++++++++++++++++++----------------------- include/linux/usb/cdc.h | 23 ++ include/linux/usb/cdc_ncm.h | 134 ++++++++++ 6 files changed, 861 insertions(+), 311 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
