Re: [dpdk-dev] [RFC PATCH 0/3] introduce IF proxy library

[Andrzej Ostruszka <amo@semihalf.com>]

Morten

First of all thank you for your feedback.  If anything else pops into
your mind please do not hesitate to share it.

We just had a quick internal discussion and we decided that we'll try to
come up with both options (callback and message queue).

On 1/16/20 11:58 AM, Morten Brørup wrote:
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Andrzej Ostruszka
>> Sent: Thursday, January 16, 2020 11:43 AM
[...]
>> You'd still need to repack the message and that could be the job of the
>> callback.
>>
>> At the moment we don't have much experience with the library and to me
>> the callback is more generic approach with which one can achieve
>> different designs.  However nothing here is curved in stone so if we
>> figure out that this is too generic we will change it.
>>
> 
> Please re-read my reply to Jerin Jacob why I prefer a pull model instead:
> https://mails.dpdk.org/archives/dev/2020-January/155386.html

Yes - I got your point first time.  Remark above was not meant to imply
that "pull mode" is not a valid way (it is perfectly valid and probably
most often used in DPDK).  I just noted that by staying at callback
level only one can still implement it.

But it is true that this way would impose more burden on the application
writer - so instead we now plan to provide both options.

> Take a stab at the example application, and see which design pattern is the best fit.

We will.  This is a definitely a good idea to work out things in "battle".

With regards
Andrzej Ostruszka