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| author | Adrian Hunter <adrian.hunter@intel.com> | 2023-12-14 11:09:02 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-01-02 17:54:05 +0100 |
| commit | b062136d0d6f46d7ad5c88219cbd75f90cb18e81 (patch) | |
| tree | 25ae2157c5914f92b286eb1199ac70022d50f1ba /include/linux/mmc | |
| parent | 84a6be7db9050dd2601c9870f65eab9a665d2d5d (diff) | |
mmc: mmc_test: Add re-tuning test
Add a test to repeatedly re-tune in between random reads. The test is
non-destructive of data on the card and runs for 30 seconds. It can be
repeated to test for longer durations.
If re-tuning is not supported, the test is skipped.
Example:
# echo 'mmc1:0001' > /sys/bus/mmc/drivers/mmcblk/unbind
# echo 'mmc1:0001' > /sys/bus/mmc/drivers/mmc_test/bind
[ 36.642257] mmc_test mmc1:0001: Card claimed for testing.
# cat /sys/kernel/debug/mmc1/mmc1\:0001/testlist | grep tuning
52: Re-tuning reliability
# echo 52 > /sys/kernel/debug/mmc1/mmc1\:0001/test
[ 91.522555] mmc1: Starting tests of card mmc1:0001...
[ 91.528425] mmc1: Test case 52. Re-tuning reliability...
[ 121.536682] mmc1: Result: OK
[ 121.539572] mmc1: Tests completed.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20231214090902.43628-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
0 files changed, 0 insertions, 0 deletions