file system detect for setup default debugfs for ipc flood test

[fredoh9]

When multiclient architecture changes are merged, thesofproject/linux#1841, defugfs root for
ipc flood test is changed to /sys/kernel/debug/ipc-flood-test.x/, where x is unique id. debugfs
entries under the root are remained same.

As of today(PR1841 is moving target), this is the changed location.

/sys/kernel/debug/sof/sof-ipc-test.0/
/sys/kernel/debug/sof/sof-ipc-test.1/

Debugfs file system detect might be required while this pr is getting review. One easy fix is just renaming /sys/kernel/debug/sof/ to /sys/kernel/debug/sof/sof-ipc-test.1/. When this PR is merged.

And as thesofproject/linux#1841 support multiple locations of debugfs for ipc flood test, we can improve more

1. test with /sys/kernel/debug/sof/sof-ipc-test.0/
2. test with /sys/kernel/debug/sof/sof-ipc-test.1/
3. test both client1 and client2 simultaneously. This will be nice to see

The PR i made, #187, i dropped debugfs location change. I only pushed kmod change required from PR1841

cc:

• file system detect for setup default debugfs for ipc flood test #191
• Auxiliary devices in SOF break check-ipc-flood.sh (IPC3) #467
• [FEATURE] Test IPC large message IO whilst playback and capture are active #847

[Bin-QA]

How about use find /sys/kernel/debug/ -name ipc_flood_count to catch ipc_flood_count file ?

[fredoh9]

How about use find /sys/kernel/debug/ -name ipc_flood_count to catch ipc_flood_count file ?

Yes, that will work too. But it might hit multiple locations also. (see above description) So take first one should be same as current test.

[marc-hb]

@fredoh9 is this still an issue? BTW I noticed that check-ipc-flood is always skipped with IPC4

[marc-hb]

There is a symbolic link that is currently in use. Problem solved, @fredoh9 can we close this?

root@jf-cml-sku0983-sdw-1:~# file /sys/kernel/debug/sof/ipc_flood_count
/sys/kernel/debug/sof/ipc_flood_count: symbolic link to snd_sof.ipc_flood.0/ipc_flood_count

[fredoh9]

yes, we can close this