| Message ID | 1623486057-13075-1-git-send-email-loic.poulain@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | net: Add WWAN link creation support | expand |
Hello: This series was applied to netdev/net-next.git (refs/heads/master): On Sat, 12 Jun 2021 10:20:53 +0200 you wrote: > Most of the modern WWAN modems are able to support multiple network > contexts, allowing user to connect to different APNs (e.g. Internet, > MMS, etc...). These contexts are usually dynamically configured via > a control channel such as MBIM, QMI or AT. > > Each context is naturally represented as a network link/device, and > the muxing of these links is usually vendor/bus specific (QMAP, MBIM, > intel iosm...). Today some drivers create a static collection of > netdevs at init time, some relies on VLAN link for associating a context > (cdc-mbim), some exposes sysfs attribute for dynamically creating > additional netdev (qmi_wwan add_mux attr) or relies on vendor specific > link type (rmnet) for performing the muxing... so there is no generic > way to handle WWAN links, making user side integration painful. > > [...] Here is the summary with links: - [net-next,v3,1/4] rtnetlink: add alloc() method to rtnl_link_ops https://git.kernel.org/netdev/net-next/c/8c713dc93ca9 - [net-next,v3,2/4] rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME https://git.kernel.org/netdev/net-next/c/00e77ed8e64d - [net-next,v3,3/4] wwan: add interface creation support https://git.kernel.org/netdev/net-next/c/88b710532e53 - [net-next,v3,4/4] net: mhi_net: Register wwan_ops for link creation https://git.kernel.org/netdev/net-next/c/13adac032982 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
Most of the modern WWAN modems are able to support multiple network contexts, allowing user to connect to different APNs (e.g. Internet, MMS, etc...). These contexts are usually dynamically configured via a control channel such as MBIM, QMI or AT. Each context is naturally represented as a network link/device, and the muxing of these links is usually vendor/bus specific (QMAP, MBIM, intel iosm...). Today some drivers create a static collection of netdevs at init time, some relies on VLAN link for associating a context (cdc-mbim), some exposes sysfs attribute for dynamically creating additional netdev (qmi_wwan add_mux attr) or relies on vendor specific link type (rmnet) for performing the muxing... so there is no generic way to handle WWAN links, making user side integration painful. This series introduces a generic WWAN link management interface to the WWAN framework, allowing user to dynamically create and remove WWAN links through rtnetlink ('wwan' type). The underlying 'muxing' vendor implementation is completely abstracted. The idea is to use this interface for upcoming WWAN drivers (intel iosm) and to progressively integrate support into existing ones (qmi_wwan, cdc-mbim, mhi_net, etc...). v2: - Squashed Johannes and Sergey changes - Added IFLA_PARENT_DEV_BUS_NAME attribute - reworded commit message + introduce Sergey's comment v3: - Added basic new interface user to this series (mhi_net) - Moved IFLA_PARENT_DEV_NAME nla_policy introduction to right patch - Added cover letter - moved kdoc to .c file Johannes Berg (3): rtnetlink: add alloc() method to rtnl_link_ops rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME wwan: add interface creation support Loic Poulain (1): net: mhi_net: Register wwan_ops for link creation drivers/net/Kconfig | 1 + drivers/net/mhi/net.c | 123 ++++++++++++++++++---- drivers/net/wwan/wwan_core.c | 245 +++++++++++++++++++++++++++++++++++++++++-- include/linux/wwan.h | 24 +++++ include/net/rtnetlink.h | 8 ++ include/uapi/linux/if_link.h | 7 ++ include/uapi/linux/wwan.h | 16 +++ net/core/rtnetlink.c | 30 +++++- 8 files changed, 419 insertions(+), 35 deletions(-) create mode 100644 include/uapi/linux/wwan.h