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| author | Xabier Marquiegui <reibax@gmail.com> | 2023-10-12 01:39:57 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-10-15 22:07:52 +0300 |
| commit | 403376ddb4221be9db5326ae334773807df71ffe (patch) | |
| tree | 027d7c1055733aecd925d4941b8a7d90296e57f6 /tools | |
| parent | c5a445b1e9347b14752b01f1a304bd7a2f260acc (diff) | |
| download | linux-403376ddb4221be9db5326ae334773807df71ffe.tar.xz | |
ptp: add debugfs interface to see applied channel masks
Use debugfs to be able to view channel mask applied to every timestamp
event queue.
Every time the device is opened, a new entry is created in
`$DEBUGFS_MOUNTPOINT/ptpN/$INSTANCE_ADDRESS/mask`.
The mask value can be viewed grouped in 32bit decimal values using cat,
or converted to hexadecimal with the included `ptpchmaskfmt.sh` script.
32 bit values are listed from least significant to most significant.
Signed-off-by: Xabier Marquiegui <reibax@gmail.com>
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/ptp/ptpchmaskfmt.sh | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/testing/selftests/ptp/ptpchmaskfmt.sh b/tools/testing/selftests/ptp/ptpchmaskfmt.sh new file mode 100644 index 000000000000..0a06ba8af300 --- /dev/null +++ b/tools/testing/selftests/ptp/ptpchmaskfmt.sh @@ -0,0 +1,14 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Simple helper script to transform ptp debugfs timestamp event queue filtering +# masks from decimal values to hexadecimal values + +# Only takes the debugfs mask file path as an argument +DEBUGFS_MASKFILE="${1}" + +#shellcheck disable=SC2013,SC2086 +for int in $(cat "$DEBUGFS_MASKFILE") ; do + printf '0x%08X ' "$int" +done +echo |