1 What: /sys/kernel/debug/scmi/<n>/ins 1 What: /sys/kernel/debug/scmi/<n>/instance_name
2 Date: March 2023 2 Date: March 2023
3 KernelVersion: 6.3 3 KernelVersion: 6.3
4 Contact: cristian.marussi@arm.com 4 Contact: cristian.marussi@arm.com
5 Description: The name of the underlying SCM 5 Description: The name of the underlying SCMI instance <n> described by
6 all the debugfs accessors root 6 all the debugfs accessors rooted at /sys/kernel/debug/scmi/<n>,
7 expressed as the full name of 7 expressed as the full name of the top DT SCMI node under which
8 this SCMI instance is rooted. 8 this SCMI instance is rooted.
9 Users: Debugging, any userspace test 9 Users: Debugging, any userspace test suite
10 10
11 What: /sys/kernel/debug/scmi/<n>/ato 11 What: /sys/kernel/debug/scmi/<n>/atomic_threshold_us
12 Date: March 2023 12 Date: March 2023
13 KernelVersion: 6.3 13 KernelVersion: 6.3
14 Contact: cristian.marussi@arm.com 14 Contact: cristian.marussi@arm.com
15 Description: An optional time value, expres 15 Description: An optional time value, expressed in microseconds, representing,
16 on this SCMI instance <n>, the 16 on this SCMI instance <n>, the threshold above which any SCMI
17 command, advertised to have an 17 command, advertised to have an higher-than-threshold execution
18 latency, should not be conside 18 latency, should not be considered for atomic mode of operation,
19 even if requested. 19 even if requested.
20 Users: Debugging, any userspace test 20 Users: Debugging, any userspace test suite
21 21
22 What: /sys/kernel/debug/scmi/<n>/tra 22 What: /sys/kernel/debug/scmi/<n>/transport/type
23 Date: March 2023 23 Date: March 2023
24 KernelVersion: 6.3 24 KernelVersion: 6.3
25 Contact: cristian.marussi@arm.com 25 Contact: cristian.marussi@arm.com
26 Description: A string representing the type 26 Description: A string representing the type of transport configured for this
27 SCMI instance <n>. 27 SCMI instance <n>.
28 Users: Debugging, any userspace test 28 Users: Debugging, any userspace test suite
29 29
30 What: /sys/kernel/debug/scmi/<n>/tra 30 What: /sys/kernel/debug/scmi/<n>/transport/is_atomic
31 Date: March 2023 31 Date: March 2023
32 KernelVersion: 6.3 32 KernelVersion: 6.3
33 Contact: cristian.marussi@arm.com 33 Contact: cristian.marussi@arm.com
34 Description: A boolean stating if the trans 34 Description: A boolean stating if the transport configured on the underlying
35 SCMI instance <n> is capable o 35 SCMI instance <n> is capable of atomic mode of operation.
36 Users: Debugging, any userspace test 36 Users: Debugging, any userspace test suite
37 37
38 What: /sys/kernel/debug/scmi/<n>/tra 38 What: /sys/kernel/debug/scmi/<n>/transport/max_rx_timeout_ms
39 Date: March 2023 39 Date: March 2023
40 KernelVersion: 6.3 40 KernelVersion: 6.3
41 Contact: cristian.marussi@arm.com 41 Contact: cristian.marussi@arm.com
42 Description: Timeout in milliseconds allowe 42 Description: Timeout in milliseconds allowed for SCMI synchronous replies
43 for the currently configured S 43 for the currently configured SCMI transport for instance <n>.
44 Users: Debugging, any userspace test 44 Users: Debugging, any userspace test suite
45 45
46 What: /sys/kernel/debug/scmi/<n>/tra 46 What: /sys/kernel/debug/scmi/<n>/transport/max_msg_size
47 Date: March 2023 47 Date: March 2023
48 KernelVersion: 6.3 48 KernelVersion: 6.3
49 Contact: cristian.marussi@arm.com 49 Contact: cristian.marussi@arm.com
50 Description: Max message size of allowed SC 50 Description: Max message size of allowed SCMI messages for the currently
51 configured SCMI transport for 51 configured SCMI transport for instance <n>.
52 Users: Debugging, any userspace test 52 Users: Debugging, any userspace test suite
53 53
54 What: /sys/kernel/debug/scmi/<n>/tra 54 What: /sys/kernel/debug/scmi/<n>/transport/tx_max_msg
55 Date: March 2023 55 Date: March 2023
56 KernelVersion: 6.3 56 KernelVersion: 6.3
57 Contact: cristian.marussi@arm.com 57 Contact: cristian.marussi@arm.com
58 Description: Max number of concurrently all 58 Description: Max number of concurrently allowed in-flight SCMI messages for
59 the currently configured SCMI 59 the currently configured SCMI transport for instance <n> on the
60 TX channels. 60 TX channels.
61 Users: Debugging, any userspace test 61 Users: Debugging, any userspace test suite
62 62
63 What: /sys/kernel/debug/scmi/<n>/tra 63 What: /sys/kernel/debug/scmi/<n>/transport/rx_max_msg
64 Date: March 2023 64 Date: March 2023
65 KernelVersion: 6.3 65 KernelVersion: 6.3
66 Contact: cristian.marussi@arm.com 66 Contact: cristian.marussi@arm.com
67 Description: Max number of concurrently all 67 Description: Max number of concurrently allowed in-flight SCMI messages for
68 the currently configured SCMI 68 the currently configured SCMI transport for instance <n> on the
69 RX channels. 69 RX channels.
70 Users: Debugging, any userspace test 70 Users: Debugging, any userspace test suite
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