1ACCEL-CONFIG-CONFI(1) accfg Manual ACCEL-CONFIG-CONFI(1)
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6 accel-config-config-wq - configure individual attributes of a work
7 queue
8
10 accel-config config-wq <device name>/<wq name> [<options>]
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13 accel-config config-wq dsa0/wq0.0 --wq-size=16
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16 -g, --group-id=
17 specify the group id used by work queue, group id should be between
18 0 and the maximum number of groups per device. A group id of -1
19 disassociates the work queue from a group.
20 -s, --wq-size=
22 specify work queue size used by a work queue. The wq-size should be
23 between 0 and the maximum workqueue size exposed by the device in
24 the max_work_queue_size attribute under device.
25 -p, --priority
27 specify the priority of this work queue relative to other work
28 queues in the same group. This field ranges from 1 to 15 where the
29 larger value means higher priority. For example, if wq1 has a
30 priority of 6 and wq2 has priority of 2, wq1 will issue 3 times as
31 many descriptors to the engine compare to wq2.
32 -b, --block-on-fault
34 toggle block on fault enable for the work queue. block-on-fault
35 should be either 0 or 1. If block on fault is disabled, if a page
36 fault occurs on a source or destination memory access, the
37 operation stops and the page fault is reported to the software.
38 -t, --threshold
40 configure the threshold for the wq. The set up threshold value
41 should be larger than 0 and only for "shared" wq, and note that the
42 configured threshold value should be at least 1 less than the
43 configured wq-size value. The reason is threshold is set for
44 unprivileged users, and need to reserve at least 1 space for the
45 privileged user for commands.
46 -y, --type
48 configure the type for the wq. The wq type can be "kernel" for
49 kernel user case to request wq, "mdev" for mediated device driver
50 use case to request wq or "user" for regular character device
51 driver use case to wq.
52 -n, --name
54 configure the name for the wq. This can be any string defined by
55 the user. Typically it is used for identifying the wq in some
56 unique way. A possible suggestion would be using a uuid string.
57 -d, --driver-name
59 specify the name of the driver to bind. This should be one of the
60 valid wq drivers found in /sys/bus/dsa/drivers
61 -m, --mode
63 configure the mode for the wq. The wq mode can be set as
64 "dedicated" or "shared".
65 -c, --max-batch-size
67 specify the max batch size used by a work queue. The value should
68 be between 1 and the device maximum batch size found in the
69 max_batch_size attribute under device. If the value is not a power
70 of 2, it will be rounded up to the next power of 2.
71 -x, --max-transfer-size
73 specify the max transfer size used by a work queue. The value
74 should be between 1 and the device maximum transfer size found in
75 the max_transfer_size attribute under device. If the value is not a
76 power of 2, it will be rounded up to the next power of 2.
77 -a, --ats-disable
79 toggle whether ATS disable is turned on for the work queue. The
80 value should be either 0 or 1. 0 indicates ATS is on, and 1
81 indicates ATS is off for the work queue.
82
84 Copyright (c) 2016 - 2019, Intel Corporation. License GPLv2: GNU GPL
85 version 2 http://gnu.org/licenses/gpl.html. This is free software: you
86 are free to change and redistribute it. There is NO WARRANTY, to the
87 extent permitted by law.
88accfg 3.4.6.4 07/20/2022 ACCEL-CONFIG-CONFI(1)