Hi Florin,
This is nothing to do with the subject being discussed.
Can you please direct me to the following
i) example(s) of VCL ?
ii) Any tutorial explaining the working of VCL ?
Thanks & Regards,
Venu
On Fri, 4 Dec 2020 at 01:28, Florin Coras <fcoras.li...@gmail.com> wrote:
> Hi Ravi,
>
> VCL is not part of the vpp app/process, it’s a library that applications
> can link against to be able to interact with the session layer in a more
> posix-like manner. So if your app needs a binary api connection to vpp, it
> needs to set it up independent of vcl.
>
> With regard to the “vpe-api” region, it’s worth nothing that the binary
> api can work over two “transports”. Namely:
>
> 1) posix shared memory, and this is the one that relies on the vpe-api
> region for bootstrapping and
> 2) an af_unix socket which is configurable in startup.conf, i.e., by doing
> something like socksvr { socket-name <filename> }.
>
> This is somewhat further complicated by the fact that a binary api
> connection bootstrapped over a socket (option 2) can be switched to a
> shared memory transport. Although similar to option1, in this case, the
> memory is allocated and negotiated per binary api client using memfds and
> the socket. This is what VCL uses underneath if configured to use the
> binary api with the socket transport.
>
> Previously, VCL could also be configured to use option 1, but support for
> this has been recently dropped.
>
> Regards,
> Florin
>
> On Dec 3, 2020, at 7:22 AM, RaviKiran Veldanda <ravi.jup...@gmail.com>
> wrote:
>
> Hi Florin,
> Thanks for your response, however I have a question, If I want to use
> another Binary API initialization do we need to do at our Application or in
> VPP code.
> When I check VPP source code, the initialization always with "vpe-api"
> vpe_api_init calls always vl_set_memory_region_name ("/vpe-api"); so
> wondering do we have any other region present?
>
> FYI: We are using 20.05 stable version.
> Regards,
> Ravi.
>
>
>
>
>
>
>
>
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