This series adds core MCTP support to the kernel. From the Kconfig description: Management Component Transport Protocol (MCTP) is an in-system protocol for communicating between management controllers and their managed devices (peripherals, host processors, etc.). The protocol is defined by DMTF specification DSP0236. This option enables core MCTP support. For communicating with other devices, you'll want to enable a driver for a specific hardware channel. This implementation allows a sockets-based API for sending and receiving MCTP messages via sendmsg/recvmsg on SOCK_DGRAM sockets. Kernel stack control is all via netlink, using existing RTM_* messages. The userspace ABI change is fairly small; just the necessary AF_/ETH_P_/ARPHDR_ constants, a new sockaddr, and a new netlink attribute. For MAINTAINERS, I've just included netdev@ as the list entry. I'm happy to alter this based on preferences here - an alternative would be the OpenBMC list (the main user of the MCTP interface), or we can create a new list entirely. We have a couple of interface drivers almost ready to go at the moment, but those can wait until the core code has some review. This is v4 of the series; v1 and v2 were both RFC. selinux folks: CCing 01/15 due to the new PF_MCTP protocol family. linux-doc folks: CCing 15/15 for the new MCTP overview document. Review, comments, questions etc. are most welcome. Cheers, Jeremy v2: - change to match spec terminology: controller -> component - require specific capabilities for bind() & sendmsg() - add address and tag defintions to uapi - add selinux AF_MCTP table definitions - remove strict cflags; warnings are present in common headers v3: - require caps for MCTP bind() & send() - comment typo fixes - switch to an array for local EIDs - fix addrinfo dump iteration & error path - add RTM_DELADDR - remove GENMASK() and BIT() from uapi v4: - drop tun patch; that can be submitted separately - keep nipa happy: add maintainer CCs, including doc and selinux - net-next rebase - Include AF_MCTP in af_family_slock_keys and pf_family_names - Introduce MODULE_ definitions earlier - upstream change: set_link_af no longer called with RTNL held - add kdoc for net_device.mctp_ptr - don't inline mctp_rt_match_eid - require rtm_type == RTN_UNICAST in route management handlers - remove unused RTAX policy table - fix mctp_sock->keys rcu annotations - fix spurious rcu_read_unlock in route input Jeremy Kerr (10): mctp: Add MCTP base mctp: Add base socket/protocol definitions mctp: Add base packet definitions mctp: Add sockaddr_mctp to uapi mctp: Add initial driver infrastructure mctp: Add device handling and netlink interface mctp: Add initial routing framework mctp: Populate socket implementation mctp: Implement message fragmentation & reassembly mctp: Add MCTP overview document Matt Johnston (6): mctp: Add netlink route management mctp: Add neighbour implementation mctp: Add neighbour netlink interface mctp: Add dest neighbour lladdr to route output mctp: Allow per-netns default networks mctp: Allow MCTP on tun devices Documentation/networking/index.rst | 1 + Documentation/networking/mctp.rst | 213 ++++++ MAINTAINERS | 12 + drivers/net/Kconfig | 2 + drivers/net/Makefile | 1 + drivers/net/mctp/Kconfig | 8 + drivers/net/mctp/Makefile | 0 include/linux/netdevice.h | 3 + include/linux/socket.h | 6 +- include/net/mctp.h | 235 ++++++ include/net/mctpdevice.h | 36 + include/net/net_namespace.h | 4 + include/net/netns/mctp.h | 36 + include/uapi/linux/if_arp.h | 1 + include/uapi/linux/if_ether.h | 3 + include/uapi/linux/if_link.h | 10 + include/uapi/linux/mctp.h | 36 + net/Kconfig | 1 + net/Makefile | 1 + net/mctp/Kconfig | 13 + net/mctp/Makefile | 3 + net/mctp/af_mctp.c | 396 ++++++++++ net/mctp/device.c | 427 +++++++++++ net/mctp/neigh.c | 342 +++++++++ net/mctp/route.c | 1095 +++++++++++++++++++++++++++ security/selinux/hooks.c | 4 +- security/selinux/include/classmap.h | 4 +- 27 files changed, 2890 insertions(+), 3 deletions(-) create mode 100644 Documentation/networking/mctp.rst create mode 100644 drivers/net/mctp/Kconfig create mode 100644 drivers/net/mctp/Makefile create mode 100644 include/net/mctp.h create mode 100644 include/net/mctpdevice.h create mode 100644 include/net/netns/mctp.h create mode 100644 include/uapi/linux/mctp.h create mode 100644 net/mctp/Kconfig create mode 100644 net/mctp/Makefile create mode 100644 net/mctp/af_mctp.c create mode 100644 net/mctp/device.c create mode 100644 net/mctp/neigh.c create mode 100644 net/mctp/route.c -- 2.30.2 Jeremy Kerr (10): mctp: Add MCTP base mctp: Add base socket/protocol definitions mctp: Add base packet definitions mctp: Add sockaddr_mctp to uapi mctp: Add initial driver infrastructure mctp: Add device handling and netlink interface mctp: Add initial routing framework mctp: Populate socket implementation mctp: Implement message fragmentation & reassembly mctp: Add MCTP overview document Matt Johnston (5): mctp: Add netlink route management mctp: Add neighbour implementation mctp: Add neighbour netlink interface mctp: Add dest neighbour lladdr to route output mctp: Allow per-netns default networks Documentation/networking/index.rst | 1 + Documentation/networking/mctp.rst | 213 ++++++ MAINTAINERS | 12 + drivers/net/Kconfig | 2 + drivers/net/Makefile | 1 + drivers/net/mctp/Kconfig | 8 + drivers/net/mctp/Makefile | 0 include/linux/netdevice.h | 4 + include/linux/socket.h | 6 +- include/net/mctp.h | 231 ++++++ include/net/mctpdevice.h | 36 + include/net/net_namespace.h | 4 + include/net/netns/mctp.h | 36 + include/uapi/linux/if_arp.h | 1 + include/uapi/linux/if_ether.h | 3 + include/uapi/linux/if_link.h | 10 + include/uapi/linux/mctp.h | 36 + net/Kconfig | 1 + net/Makefile | 1 + net/core/sock.c | 1 + net/mctp/Kconfig | 13 + net/mctp/Makefile | 3 + net/mctp/af_mctp.c | 396 ++++++++++ net/mctp/device.c | 423 +++++++++++ net/mctp/neigh.c | 342 +++++++++ net/mctp/route.c | 1099 +++++++++++++++++++++++++++ net/socket.c | 1 + security/selinux/hooks.c | 4 +- security/selinux/include/classmap.h | 4 +- 29 files changed, 2889 insertions(+), 3 deletions(-) create mode 100644 Documentation/networking/mctp.rst create mode 100644 drivers/net/mctp/Kconfig create mode 100644 drivers/net/mctp/Makefile create mode 100644 include/net/mctp.h create mode 100644 include/net/mctpdevice.h create mode 100644 include/net/netns/mctp.h create mode 100644 include/uapi/linux/mctp.h create mode 100644 net/mctp/Kconfig create mode 100644 net/mctp/Makefile create mode 100644 net/mctp/af_mctp.c create mode 100644 net/mctp/device.c create mode 100644 net/mctp/neigh.c create mode 100644 net/mctp/route.c -- 2.30.2 Jeremy Kerr (10): mctp: Add MCTP base mctp: Add base socket/protocol definitions mctp: Add base packet definitions mctp: Add sockaddr_mctp to uapi mctp: Add initial driver infrastructure mctp: Add device handling and netlink interface mctp: Add initial routing framework mctp: Populate socket implementation mctp: Implement message fragmentation & reassembly mctp: Add MCTP overview document Matt Johnston (5): mctp: Add netlink route management mctp: Add neighbour implementation mctp: Add neighbour netlink interface mctp: Add dest neighbour lladdr to route output mctp: Allow per-netns default networks Documentation/networking/index.rst | 1 + Documentation/networking/mctp.rst | 213 ++++++ MAINTAINERS | 12 + drivers/net/Kconfig | 2 + drivers/net/Makefile | 1 + drivers/net/mctp/Kconfig | 8 + drivers/net/mctp/Makefile | 0 include/linux/netdevice.h | 4 + include/linux/socket.h | 6 +- include/net/mctp.h | 231 ++++++ include/net/mctpdevice.h | 36 + include/net/net_namespace.h | 4 + include/net/netns/mctp.h | 36 + include/uapi/linux/if_arp.h | 1 + include/uapi/linux/if_ether.h | 3 + include/uapi/linux/if_link.h | 10 + include/uapi/linux/mctp.h | 36 + net/Kconfig | 1 + net/Makefile | 1 + net/core/sock.c | 1 + net/mctp/Kconfig | 13 + net/mctp/Makefile | 3 + net/mctp/af_mctp.c | 396 ++++++++++ net/mctp/device.c | 423 +++++++++++ net/mctp/neigh.c | 342 +++++++++ net/mctp/route.c | 1099 +++++++++++++++++++++++++++ net/socket.c | 1 + security/selinux/hooks.c | 4 +- security/selinux/include/classmap.h | 4 +- 29 files changed, 2889 insertions(+), 3 deletions(-) create mode 100644 Documentation/networking/mctp.rst create mode 100644 drivers/net/mctp/Kconfig create mode 100644 drivers/net/mctp/Makefile create mode 100644 include/net/mctp.h create mode 100644 include/net/mctpdevice.h create mode 100644 include/net/netns/mctp.h create mode 100644 include/uapi/linux/mctp.h create mode 100644 net/mctp/Kconfig create mode 100644 net/mctp/Makefile create mode 100644 net/mctp/af_mctp.c create mode 100644 net/mctp/device.c create mode 100644 net/mctp/neigh.c create mode 100644 net/mctp/route.c -- 2.30.2
