[PATCH v2 00/11] common: introduce bthreads, co-operative

[Ahmad Fatoum]

Hello Stafford,

On 03.03.21 13:15, Stafford Horne wrote:
> On Mon, Mar 01, 2021 at 12:00:55PM +0100, Ahmad Fatoum wrote:
>> Hello,
>>
>> This is v2 of barebox coroutine support:
>>     https://lists.infradead.org/pipermail/barebox/2021-February/035032.html
>>
>> As discussed with Sascha, if this is to be added, this should be added for
>> all architectures and not be optional. If we have this as integral part,
>> it means we can substitute coroutines for:
>>     - pollers: just wrap the code in a loop
>>     - async pollers: just call a delay function in the loop
>>     - workqueues: assert_command_context yields until in command context
>>
>> In addition, we will have much less work porting over threaded code from
>> Linux. See the referenced series for an example of a USB mass storage
>> gadget.
>>
>> To prepare for replacing them, the functionality is renamed to
>> bthreads (as in barebox threads) and is made separate from pollers.
>>
>> How to add new architecture support:
>>
>>   - Apply this series or check out https://github.com/a3f/barebox/tree/bthread
> 
> Now that I got a dev environment booting off master I have switched to your
> bthread branch.  I found there is already a commit to remove openrisc in next.
> 
> I will revert this in my branch.

Yes, please revert.

> Is there a timeframe you aim to have this all done?

I hoped it would be ready by middle of march, so it can go into next
before v2020.03.0, but no hurry. I can make it optional and withhold
adding code depending on bthreads until all architectures have support.

> Also, It seems networking it not working for me that is ok for the work here,
> but it will be something I have to look into next for OpenRISC.

Can't help here unfortunately. I haven't actually used this platform.

Cheers,
Ahmad

> 
> -Stafford
> 

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