From: Saravanan S <sarans1987@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Subject: Standalone SRIO Driver for Linux
Date: Fri, 13 Jul 2012 11:45:32 +0530 [thread overview]
Message-ID: <CAEqOc-QpXcwbLuJXLbGv3VgccKnkMrdGV+ZdwFaFZCzjG3K7Mw@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1118 bytes --]
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
[-- Attachment #2: Type: text/html, Size: 1164 bytes --]
next reply other threads:[~2012-07-13 6:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-13 6:15 Saravanan S [this message]
2012-07-13 12:48 ` Standalone SRIO Driver for Linux Bounine, Alexandre
2012-07-14 6:24 ` Saravanan S
2012-07-16 14:15 ` Bounine, Alexandre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAEqOc-QpXcwbLuJXLbGv3VgccKnkMrdGV+ZdwFaFZCzjG3K7Mw@mail.gmail.com \
--to=sarans1987@gmail.com \
--cc=linuxppc-dev@lists.ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).