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a0c2ccd9b5
This change adds a MCTP Serial transport binding, as defined by DMTF specificiation DSP0253 - "MCTP Serial Transport Binding". This is implemented as a new serial line discipline, and can be attached to arbitrary tty devices. From the Kconfig description: This driver provides an MCTP-over-serial interface, through a serial line-discipline, as defined by DMTF specification "DSP0253 - MCTP Serial Transport Binding". By attaching the ldisc to a serial device, we get a new net device to transport MCTP packets. This allows communication with external MCTP endpoints which use serial as their transport. It can also be used as an easy way to provide MCTP connectivity between virtual machines, by forwarding data between simple virtual serial devices. Say y here if you need to connect to MCTP endpoints over serial. To compile as a module, use m; the module will be called mctp-serial. Once the N_MCTP line discipline is set [using ioctl(TCIOSETD)], we get a new netdev suitable for MCTP communication. The 'mctp' utility[1] provides a simple wrapper for this ioctl, using 'link serial <device>': # mctp link serial /dev/ttyS0 & # mctp link dev lo index 1 address 0x00:00:00:00:00:00 net 1 mtu 65536 up dev mctpserial0 index 5 address 0x(no-addr) net 1 mtu 68 down [1]: https://github.com/CodeConstruct/mctp Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_TTY_H
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#define _UAPI_LINUX_TTY_H
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/*
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* 'tty.h' defines some structures used by tty_io.c and some defines.
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*/
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#define NR_LDISCS 30
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/* line disciplines */
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#define N_TTY 0
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#define N_SLIP 1
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#define N_MOUSE 2
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#define N_PPP 3
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#define N_STRIP 4
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#define N_AX25 5
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#define N_X25 6 /* X.25 async */
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#define N_6PACK 7
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#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
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#define N_R3964 9 /* Reserved for Simatic R3964 module */
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#define N_PROFIBUS_FDL 10 /* Reserved for Profibus */
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#define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */
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#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data */
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/* cards about SMS messages */
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#define N_HDLC 13 /* synchronous HDLC */
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#define N_SYNC_PPP 14 /* synchronous PPP */
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#define N_HCI 15 /* Bluetooth HCI UART */
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#define N_GIGASET_M101 16 /* Siemens Gigaset M101 serial DECT adapter */
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#define N_SLCAN 17 /* Serial / USB serial CAN Adaptors */
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#define N_PPS 18 /* Pulse per Second */
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#define N_V253 19 /* Codec control over voice modem */
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#define N_CAIF 20 /* CAIF protocol for talking to modems */
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#define N_GSM0710 21 /* GSM 0710 Mux */
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#define N_TI_WL 22 /* for TI's WL BT, FM, GPS combo chips */
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#define N_TRACESINK 23 /* Trace data routing for MIPI P1149.7 */
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#define N_TRACEROUTER 24 /* Trace data routing for MIPI P1149.7 */
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#define N_NCI 25 /* NFC NCI UART */
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#define N_SPEAKUP 26 /* Speakup communication with synths */
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#define N_NULL 27 /* Null ldisc used for error handling */
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#define N_MCTP 28 /* MCTP-over-serial */
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#endif /* _UAPI_LINUX_TTY_H */
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