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/linux/drivers/net/mctp/
H A DKconfig2 if MCTP
4 menu "MCTP Device Drivers"
7 tristate "MCTP serial transport"
11 This driver provides an MCTP-over-serial interface, through a
13 MCTP Serial Transport Binding". By attaching the ldisc to a serial
14 device, we get a new net device to transport MCTP packets.
16 This allows communication with external MCTP endpoints which use
18 provide MCTP connectivity between virtual machines, by forwarding
21 Say y here if you need to connect to MCTP endpoints over serial. To
22 compile as a module, use m; the module will be called mctp-serial.
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H A Dmctp-i2c.c3 * Management Controller Transport Protocol (MCTP)
5 * "DSP0237 Management Component Transport Protocol (MCTP) SMBus/I2C
9 * A netdev is created for each I2C bus that handles MCTP. In the case of an I2C
14 * mctp-i2c-controller.yml devicetree binding has further details.
25 #include <net/mctp.h>
41 #define MCTP_I2C_OF_PROP "mctp-controller"
136 dev_err(&client->dev, "failed, MCTP requires a 7-bit I2C address, addr=0x%x\n", in mctp_i2c_new_client()
150 "A mctp-i2c-controller client cannot be placed on an I2C mux adapter.\n" in mctp_i2c_new_client()
152 " then set mctp-controller property on adapters to attach\n"); in mctp_i2c_new_client()
203 /* Switch the mctp i2c device to receive responses.
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H A DMakefile1 obj-$(CONFIG_MCTP_SERIAL) += mctp-serial.o
2 obj-$(CONFIG_MCTP_TRANSPORT_I2C) += mctp-i2c.o
3 obj-$(CONFIG_MCTP_TRANSPORT_I3C) += mctp-i3c.o
H A Dmctp-i3c.c4 * "DSP0233 Management Component Transport Protocol (MCTP) I3C Transport
17 #include <net/mctp.h>
24 /* 64 byte payload, 4 byte MCTP header */
28 /* 4 byte MCTP header, no data, 1 byte PEC */
42 static const char *MCTP_I3C_OF_PROP = "mctp-controller";
186 /* Not a mctp-i3c interrupt, ignore it */ in mctp_i3c_ibi_handler()
250 /* Adds a new MCTP i3c_device to a bus */
280 dev_warn(i3cdev_to_dev(i3c), "Error adding mctp-i3c device, %d\n", rc); in mctp_i3c_add_device()
298 /* probably no "mctp-controller" property on the i3c bus */ in mctp_i3c_probe()
640 /* Removes all mctp-i3c busses */
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H A Dmctp-serial.c3 * Management Component Transport Protocol (MCTP) - serial transport
5 * "DSP0253 - Management Component Transport Protocol (MCTP) Serial Transport
10 * This driver provides DSP0253-type MCTP-over-serial transport using a Linux
24 #include <linux/mctp.h>
25 #include <net/mctp.h>
28 #define MCTP_SERIAL_MTU 68 /* base mtu (64) + mctp header */
424 /* we limit at the fixed MTU, which is also the MCTP-standard in mctp_serial_setup()
502 .name = "mctp",
524 MODULE_DESCRIPTION("MCTP Serial transport");
/linux/Documentation/devicetree/bindings/net/
H A Dmctp-i2c-controller.yaml4 $id: http://devicetree.org/schemas/net/mctp-i2c-controller.yaml#
7 title: MCTP I2C transport
13 An mctp-i2c-controller defines a local MCTP endpoint on an I2C controller.
14 MCTP I2C is specified by DMTF DSP0237.
16 An mctp-i2c-controller must be attached to an I2C adapter which supports
18 busses) are attached to the mctp-i2c-controller with a 'mctp-controller'
19 property on each used bus. Each mctp-controller I2C bus will be presented
20 to the host system as a separate MCTP I2C instance.
24 const: mctp-i2c-controller
47 mctp-controller;
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/linux/net/mctp/
H A DKconfig2 menuconfig MCTP config
4 bool "MCTP core protocol support"
6 Management Component Transport Protocol (MCTP) is an in-system
11 This option enables core MCTP support. For communicating with other
16 bool "MCTP core tests" if !KUNIT_ALL_TESTS
18 depends on MCTP=y && KUNIT=y
23 depends on MCTP
H A Dneigh.c3 * Management Component Transport Protocol (MCTP) - routing
14 #include <linux/mctp.h>
19 #include <net/mctp.h>
32 mutex_lock(&net->mctp.neigh_lock); in mctp_neigh_add()
55 list_add_rcu(&neigh->list, &net->mctp.neighbours); in mctp_neigh_add()
58 mutex_unlock(&net->mctp.neigh_lock); in mctp_neigh_add()
76 mutex_lock(&net->mctp.neigh_lock); in mctp_neigh_remove_dev()
77 list_for_each_entry_safe(neigh, tmp, &net->mctp.neighbours, list) { in mctp_neigh_remove_dev()
85 mutex_unlock(&net->mctp.neigh_lock); in mctp_neigh_remove_dev()
95 mutex_lock(&net->mctp.neigh_lock); in mctp_neigh_remove()
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H A Daf_mctp.c3 * Management Component Transport Protocol (MCTP)
12 #include <linux/mctp.h>
16 #include <net/mctp.h>
21 #include <trace/events/mctp.h>
68 /* it's a valid sockaddr for MCTP, cast and do protocol checks */ in mctp_bind()
286 __must_hold(&net->mctp.keys_lock) in __mctp_key_remove()
455 spin_lock_irqsave(&net->mctp.keys_lock, flags); in mctp_ioctl_alloctag()
459 spin_unlock_irqrestore(&net->mctp.keys_lock, flags); in mctp_ioctl_alloctag()
492 spin_lock_irqsave(&net->mctp.keys_lock, flags); in mctp_ioctl_droptag()
509 spin_unlock_irqrestore(&net->mctp.keys_lock, flags); in mctp_ioctl_droptag()
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H A Droute.c3 * Management Component Transport Protocol (MCTP) - routing
15 #include <linux/mctp.h>
22 #include <net/mctp.h>
27 #include <trace/events/mctp.h>
58 sk_for_each_rcu(sk, &net->mctp.binds) { in mctp_lookup_bind()
78 * struct net->mctp.keys contains our set of currently-allocated keys for
79 * MCTP tag management. The lookup tuple for these is the peer EID,
80 * local EID and MCTP tag.
145 spin_lock_irqsave(&net->mctp.keys_lock, flags); in mctp_lookup_key()
147 hlist_for_each_entry(key, &net->mctp.keys, hlist) { in mctp_lookup_key()
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H A DMakefile2 obj-$(CONFIG_MCTP) += mctp.o
3 mctp-objs := af_mctp.o device.o route.o neigh.o
H A Ddevice.c3 * Management Component Transport Protocol (MCTP) - device implementation.
11 #include <linux/mctp.h>
18 #include <net/mctp.h>
418 /* Matches netdev types that should have MCTP handling */
/linux/Documentation/networking/
H A Dmctp.rst4 Management Component Transport Protocol (MCTP)
7 net/mctp/ contains protocol support for MCTP, as defined by DMTF standard
9 provided in drivers/net/mctp/.
11 The core code provides a socket-based interface to send and receive MCTP
17 The kernel models the local MCTP topology through two items: interfaces and
20 An interface (or "link") is an instance of an MCTP physical transport binding
24 A network defines a unique address space for MCTP endpoints by endpoint-ID
41 MCTP uses ``AF_MCTP`` / ``PF_MCTP`` for the address- and protocol- families.
42 Since MCTP is message-based, only ``SOCK_DGRAM`` sockets are supported.
76 The following sections describe the MCTP-specific behaviours of the standard
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H A Dindex.rst75 mctp
/linux/include/net/netns/
H A Dmctp.h3 * MCTP per-net structures
29 /* MCTP network */
/linux/net/mctp/test/
H A Dutils.c4 #include <linux/mctp.h>
7 #include <net/mctp.h>
H A Droute-test.c58 list_add_rcu(&rt->rt.list, &net->mctp.routes); in mctp_test_create_route()
575 mns = &sock_net(sock->sk)->mctp; in mctp_test_route_input_sk_keys()
777 mns = &sock_net(t->sock->sk)->mctp; in mctp_test_route_input_multiple_nets_key_init()
861 /* Assign a single EID. ->addrs is freed on mctp netdev release */ in mctp_test_flow_init()
888 /* test that an outgoing skb has the correct MCTP extension data set */
919 /* test that outgoing skbs, after fragmentation, all have the correct MCTP
1012 mns = &sock_net(sock->sk)->mctp; in mctp_test_route_output_key_create()
1065 .name = "mctp",
/linux/include/net/
H A Dmctp.h3 * Management Component Transport Protocol (MCTP)
13 #include <linux/mctp.h>
18 /* MCTP packet definitions */
227 * These are held in the pernet->mctp.routes list, with RCU protection for
H A Dmctpdevice.h3 * Management Component Transport Protocol (MCTP) - device
/linux/include/uapi/linux/
H A Dmctp.h3 * Management Component Transport Protocol (MCTP)
57 * MCTP network ID as part of the allocated tag. Using this assumes the default
H A Dtty.h39 #define N_MCTP 28 /* MCTP-over-serial */
/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-facebook-greatlakes.dts159 mctp-controller;
169 mctp@10 {
170 compatible = "mctp-i2c-controller";
/linux/Documentation/devicetree/bindings/i3c/
H A Di3c.yaml58 mctp-controller:
62 MCTP over I3C transport.
/linux/include/trace/events/
H A Dmctp.h4 #define TRACE_SYSTEM mctp
/linux/net/
H A DMakefile80 obj-$(CONFIG_MCTP) += mctp/

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