Standalone SRIO Driver for Linux

[Saravanan S]

Hi ,
     Thanks for the reply . i will try to share some of my code later .
Looking forward to ur ideas.

Regards,

S.Saravanan

On Fri, Jul 13, 2012 at 6:18 PM, Bounine, Alexandre <
Alexandre.Bounine at idt.com> wrote:

>  This should work. We use similar approach to test our mport HW drivers.**
> **
>
> ** **
>
> Alex.****
>
> ** **
>
> *From:* Linuxppc-dev [mailto:linuxppc-dev-bounces+alexandre.bounine=
> idt.com at lists.ozlabs.org] *On Behalf Of *Saravanan S
> *Sent:* Friday, July 13, 2012 2:16 AM
> *To:* linuxppc-dev at lists.ozlabs.org
> *Subject:* Standalone SRIO Driver for Linux****
>
> ** **
>
> Hi ,
>
>       Iam currently working on the GE make DSP230 board consisting of Quad
> PowerPC8640 nodes   interconnected by SRIO with Linux 2.6.34 . However the
> only way to access the SRIO is through rionet facility . Our requirement is
> to use the SRIO interconnect without the Ethernet overheads. This would
> definitely enable higher speeds (though I cant find any throughput figures
> for SRIO in Linux on the net ??? ).  My query is that whether any attempt
> has been made  to develop a  standalone driver and API to access the
> messaging  and doorbell services of SRIO . If no then request you to please
> provide inputs on the same. From my study I have the following thoughts for
> the driver :
>
> a) Have a character device interface for user .
> b) Basically use the rio support functions provided in rio.c like
> rio_add_inb_buffer ,  rio_add_outb_message to transfer and receive messages
> and add buffers .
> c) Maintain a dedicated ring of buffers in the driver and transfer  data
> to and from the buffer to user space .
>
>
> Is this the right direction . Would really appreciate any inputs . thanks
> in advance.
>
> Regards,
>
> S.Saravanan****
>
>
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