Merge branch 'mctp-add-mctp-over-usb-hardware-transport-binding'

Jeremy Kerr says: ==================== mctp: Add MCTP-over-USB hardware transport binding 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. v2: https://lore.kernel.org/[email protected] v1: https://lore.kernel.org/[email protected] ==================== Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
multipath-tcp · Feb 22, 2025 · b66e19d · b66e19d
2 parents e6a5321 + 0791c03
commit b66e19d
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diff --git a/MAINTAINERS b/MAINTAINERS
@@ -13896,6 +13896,7 @@ L:	[email protected]
 S:	Maintained
 F:	Documentation/networking/mctp.rst
 F:	drivers/net/mctp/
+F:	include/linux/usb/mctp-usb.h
 F:	include/net/mctp.h
 F:	include/net/mctpdevice.h
 F:	include/net/netns/mctp.h

diff --git a/drivers/net/mctp/Kconfig b/drivers/net/mctp/Kconfig
@@ -47,6 +47,16 @@ config MCTP_TRANSPORT_I3C
 	  A MCTP protocol network device is created for each I3C bus
 	  having a "mctp-controller" devicetree property.
 
+config MCTP_TRANSPORT_USB
+	tristate "MCTP USB transport"
+	depends on USB
+	help
+	  Provides a driver to access MCTP devices over USB transport,
+	  defined by DMTF specification DSP0283.
+
+	  MCTP-over-USB interfaces are peer-to-peer, so each interface
+	  represents a physical connection to one remote MCTP endpoint.
+
 endmenu
 
 endif
diff --git a/drivers/net/mctp/Makefile b/drivers/net/mctp/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_MCTP_SERIAL) += mctp-serial.o
 obj-$(CONFIG_MCTP_TRANSPORT_I2C) += mctp-i2c.o
 obj-$(CONFIG_MCTP_TRANSPORT_I3C) += mctp-i3c.o
+obj-$(CONFIG_MCTP_TRANSPORT_USB) += mctp-usb.o