Add an implementation of the DMTF standard DSP0283, providing an MCTP
channel over high-speed USB.

This is a fairly trivial first implementation, in that we only submit
one tx and one rx URB at a time. We do accept multi-packet transfers,
but do not yet generate them on transmit.

Of course, questions and comments are most welcome, particularly on the
USB interfaces.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
---
Jeremy Kerr (2):
      usb: Add base USB MCTP definitions
      net: mctp: Add MCTP USB transport driver

 MAINTAINERS                  |   1 +
 drivers/net/mctp/Kconfig     |  10 ++
 drivers/net/mctp/Makefile    |   1 +
 drivers/net/mctp/mctp-usb.c  | 367 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/usb/mctp-usb.h |  28 ++++
 include/uapi/linux/usb/ch9.h |   1 +
 6 files changed, 408 insertions(+)
---
base-commit: 7ea2745766d776866cfbc981b21ed3cfdf50124e
change-id: 20250206-dev-mctp-usb-c59dea025395

Best regards,
-- 
Jeremy Kerr [off-list ref]