Re: [dpdk-dev] [RFC] app/test-regex: add RegEx test application.

[Ori Kam <orika@mellanox.com>]

Hi Jerin,

> -----Original Message-----
> From: Jerin Jacob <jerinjacobk@gmail.com>
> Sent: Thursday, June 4, 2020 7:56 AM
> Subject: Re: [dpdk-dev] [RFC] app/test-regex: add RegEx test application.
> 
> On Thu, Jun 4, 2020 at 2:59 AM Ori Kam <orika@mellanox.com> wrote:
> >
> > Following the new RegEx class [1].
> > There is a need to create a dedecated test application in order to
> > validate this class and PMD.
> >
> > Unlike net device this application loads data from a file.
> >
> > This commit introduce the new RegEx test app.
> >
> > The basic app flow:
> > 1. query probed RegEx device.
> > 2. configure the probed device accoding to the device caps.
> > 3. read a rule database file.
> > 4. read a data file to be searched.
> > 5. allocate one mbuf.
> > 6. select the request job len, based on the number of jobs requsted.
> > 7. create one RegEx op which uses the mbuf defined in step 5.
> > 8. attach the data buffer at offset 0 with len accoding to request
> >    len to the mbuf as external buffer.
> > 9. enqueue one job.
> > 10. wait for completion of the job.
> > 11. check job results and print them.
> > 12. move the mbuf to point to the next part of the buffer.
> > 13. while there are more parts jump to 9.
> >
> > Future improvments to this application may include:
> > 1. submiting more then one job at a time.
> > 2. working with more then one queue.
> > 3. support out of order.
> > 4. allow runtime rule updating.
> >
> > This commit is only at RFC level, which means that
> > the code is only basic reference and can't be compiled and doesn't
> > include error or edge case handling.
> >
> >
> [1]https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatche
> s.dpdk.org%2Fcover%2F69919%2F&amp;data=02%7C01%7Corika%40mellanox.
> com%7C777869b8df174845154008d80843aa33%7Ca652971c7d2e4d9ba6a4d1
> 49256f461b%7C0%7C0%7C637268433993878386&amp;sdata=GzSEh6O0rqPHBl
> OtkTGx3j6VGOdVykga2zYsuyK%2BxtM%3D&amp;reserved=0
> >
> > Signed-off-by: Ori Kam <orika@mellanox.com>
> 
> IMO, this kind simile application with fixed-function can go in the
> example folder.
> I think, for app/test-regex, it better to have a framework to add new
> tests, modes, parse the modes, etc.
> Please see git log app/test-eventdev/ initial check-ins for the
> skeleton as a reference

Currently all dedicateded tests for example, the crypto are located in this folder.
As I see it the example folder is used for simple programs to be used as a reference, while this app should be used to test the
RegEx class, I assume it will get much more functionality to support all test modes.

Best,
Ori