[PATCH v8 2/4] ath10k: provide firmware crash info via debugfs

Kalle Valo kvalo at qca.qualcomm.com
Thu Aug 21 07:40:46 PDT 2014

Johannes Berg <johannes at sipsolutions.net> writes:

> On Thu, 2014-08-21 at 15:49 +0300, Kalle Valo wrote:
>> From: Ben Greear <greearb at candelatech.com>
>> Store the firmware registers and other relevant data to a firmware crash dump
>> file and provide it to user-space via debugfs. Should help with figuring out
>> why the firmware crashed.
> So we just discussed Tuesday/yesterday that I'll be writing a generic
> framework to provide this data to userspace, maybe you want to wait for
> that.

Heh, this has been a pretty long review period. To be honest I really
would like to get this just out of my hands :) And we do have a need for
this. When are you planning to implement that generic framework?

What I understood is that this is already pretty close what you are
planning. Instead of creating a debugfs file of our own and allocating a
vmalloc buffer (which we do now), we would just use the buffer provided
by cfg80211 (or whatever component that would be) and use the sysfs file
the framework provides. So hopefully it would be pretty easy to convert
this to use your framework.

Kalle Valo

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